diff options
Diffstat (limited to 'package')
66 files changed, 13 insertions, 27939 deletions
diff --git a/package/mac80211/Makefile b/package/mac80211/Makefile index 9d8320e180..b8008d71f9 100644 --- a/package/mac80211/Makefile +++ b/package/mac80211/Makefile @@ -12,12 +12,17 @@ include $(INCLUDE_DIR)/kernel.mk PKG_NAME:=mac80211 PKG_RELEASE:=1 +PKG_VERSION:=2008-04-06 +PKG_SOURCE:=compat-wireless-$(PKG_VERSION).tar.bz2 +PKG_SOURCE_URL:=http://linuxwireless.org/download/compat-wireless-2.6/ +PKG_BUILD_DIR:=$(BUILD_DIR)/compat-wireless-$(PKG_VERSION) + include $(INCLUDE_DIR)/package.mk define KernelPackage/mac80211 SUBMENU:=Wireless Drivers TITLE:=Linux 802.11 Wireless Networking Stack - DEPENDS:=@LINUX_2_6_23 +kmod-crypto-arc4 +kmod-crypto-aes +wireless-tools + DEPENDS:=@LINUX_2_6_23||@LINUX_2_6_24 +kmod-crypto-arc4 +kmod-crypto-aes +wireless-tools FILES:= \ $(PKG_BUILD_DIR)/net/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \ $(PKG_BUILD_DIR)/net/wireless/cfg80211.$(LINUX_KMOD_SUFFIX) @@ -44,30 +49,27 @@ MAKE_OPTS:= \ CONFIG_MAC80211_RC_PID=y \ CONFIG_MAC80211_LEDS=$(CONFIG_LEDS_TRIGGERS) \ LINUXINCLUDE="-I$(PKG_BUILD_DIR)/include -I$(LINUX_DIR)/include -include linux/autoconf.h" \ + KLIB_BUILD="$(LINUX_DIR)" \ define Build/Prepare rm -rf $(PKG_BUILD_DIR) mkdir -p $(PKG_BUILD_DIR) - $(CP) ./src/* $(PKG_BUILD_DIR)/ - $(Build/Patch) + $(PKG_UNPACK) $(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used) endef define Build/Compile - $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/wireless" modules - $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/mac80211" modules + $(MAKE) -C "$(PKG_BUILD_DIR)" $(MAKE_OPTS) all endef -ifeq ($(CONFIG_LINUX_2_6_23),y) - define Build/InstallDev +define Build/InstallDev mkdir -p $(1)/usr/include/mac80211 $(CP) $(PKG_BUILD_DIR)/net/mac80211/*.h $(PKG_BUILD_DIR)/include/* $(1)/usr/include/mac80211/ - endef +endef - define KernelPackage/mac80211/install +define KernelPackage/mac80211/install $(INSTALL_DIR) $(1)/lib/wifi $(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi - endef -endif +endef $(eval $(call KernelPackage,mac80211)) diff --git a/package/mac80211/patches/001-port-to-2.6.23.patch b/package/mac80211/patches/001-port-to-2.6.23.patch deleted file mode 100644 index 2e88d405e3..0000000000 --- a/package/mac80211/patches/001-port-to-2.6.23.patch +++ /dev/null @@ -1,231 +0,0 @@ -Index: mac80211/net/mac80211/ieee80211.c -=================================================================== ---- mac80211.orig/net/mac80211/ieee80211.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/ieee80211.c 2008-02-15 22:21:01.000000000 +0100 -@@ -21,7 +21,6 @@ - #include <linux/wireless.h> - #include <linux/rtnetlink.h> - #include <linux/bitmap.h> --#include <net/net_namespace.h> - #include <net/cfg80211.h> - - #include "ieee80211_i.h" -@@ -36,6 +35,15 @@ - - #define SUPP_MCS_SET_LEN 16 - -+ -+char *print_mac(char *buf, const u8 *addr) -+{ -+ sprintf(buf, MAC_FMT, -+ addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); -+ return buf; -+} -+ -+ - /* - * For seeing transmitted packets on monitor interfaces - * we have a radiotap header too. -@@ -48,11 +56,13 @@ struct ieee80211_tx_status_rtap_hdr { - - /* common interface routines */ - -+#if 0 - static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr) - { - memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */ - return ETH_ALEN; - } -+#endif - - /* must be called under mdev tx lock */ - static void ieee80211_configure_filter(struct ieee80211_local *local) -@@ -800,6 +810,7 @@ static void ieee80211_set_multicast_list - dev_mc_sync(local->mdev, dev); - } - -+#if 0 - static const struct header_ops ieee80211_header_ops = { - .create = eth_header, - .parse = header_parse_80211, -@@ -807,6 +818,7 @@ static const struct header_ops ieee80211 - .cache = eth_header_cache, - .cache_update = eth_header_cache_update, - }; -+#endif - - /* Must not be called for mdev */ - void ieee80211_if_setup(struct net_device *dev) -@@ -1455,7 +1467,7 @@ struct ieee80211_hw *ieee80211_alloc_hw( - mdev->open = ieee80211_master_open; - mdev->stop = ieee80211_master_stop; - mdev->type = ARPHRD_IEEE80211; -- mdev->header_ops = &ieee80211_header_ops; -+// mdev->header_ops = &ieee80211_header_ops; - mdev->set_multicast_list = ieee80211_master_set_multicast_list; - - sdata->vif.type = IEEE80211_IF_TYPE_AP; -Index: mac80211/net/mac80211/ieee80211_i.h -=================================================================== ---- mac80211.orig/net/mac80211/ieee80211_i.h 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/ieee80211_i.h 2008-02-15 22:21:37.000000000 +0100 -@@ -26,6 +26,16 @@ - #include "ieee80211_key.h" - #include "sta_info.h" - -+ -+#define BIT(nr) (1 << (nr)) -+ -+#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" -+extern char *print_mac(char *buf, const u8 *addr); -+#define DECLARE_MAC_BUF(var) char var[18] __maybe_unused -+ -+#define CONFIG_MAC80211_RC_DEFAULT __stringify(__CONFIG_MAC80211_RC_DEFAULT) -+ -+ - /* ieee80211.o internal definitions, etc. These are not included into - * low-level drivers. */ - -Index: mac80211/net/mac80211/ieee80211_ioctl.c -=================================================================== ---- mac80211.orig/net/mac80211/ieee80211_ioctl.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/ieee80211_ioctl.c 2008-02-15 22:21:01.000000000 +0100 -@@ -207,7 +207,7 @@ static int ieee80211_ioctl_giwrange(stru - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); - -- range->scan_capa |= IW_SCAN_CAPA_ESSID; -+// range->scan_capa |= IW_SCAN_CAPA_ESSID; - - return 0; - } -Index: mac80211/net/wireless/core.c -=================================================================== ---- mac80211.orig/net/wireless/core.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/wireless/core.c 2008-02-15 22:21:01.000000000 +0100 -@@ -69,7 +69,7 @@ __cfg80211_drv_from_info(struct genl_inf - - if (info->attrs[NL80211_ATTR_IFINDEX]) { - ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); -- dev = dev_get_by_index(&init_net, ifindex); -+ dev = dev_get_by_index(ifindex); - if (dev) { - if (dev->ieee80211_ptr) - byifidx = -@@ -120,7 +120,7 @@ cfg80211_get_dev_from_ifindex(int ifinde - struct net_device *dev; - - mutex_lock(&cfg80211_drv_mutex); -- dev = dev_get_by_index(&init_net, ifindex); -+ dev = dev_get_by_index(ifindex); - if (!dev) - goto out; - if (dev->ieee80211_ptr) { -Index: mac80211/net/wireless/nl80211.c -=================================================================== ---- mac80211.orig/net/wireless/nl80211.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/wireless/nl80211.c 2008-02-15 22:21:01.000000000 +0100 -@@ -39,7 +39,7 @@ static int get_drv_dev_by_info_ifindex(s - return -EINVAL; - - ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); -- *dev = dev_get_by_index(&init_net, ifindex); -+ *dev = dev_get_by_index(ifindex); - if (!*dev) - return -ENODEV; - -@@ -959,7 +959,7 @@ static int get_vlan(struct nlattr *vlana - *vlan = NULL; - - if (vlanattr) { -- *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); -+ *vlan = dev_get_by_index(nla_get_u32(vlanattr)); - if (!*vlan) - return -ENODEV; - if (!(*vlan)->ieee80211_ptr) -Index: mac80211/net/mac80211/cfg.c -=================================================================== ---- mac80211.orig/net/mac80211/cfg.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/cfg.c 2008-02-15 22:21:01.000000000 +0100 -@@ -9,7 +9,6 @@ - #include <linux/ieee80211.h> - #include <linux/nl80211.h> - #include <linux/rtnetlink.h> --#include <net/net_namespace.h> - #include <linux/rcupdate.h> - #include <net/cfg80211.h> - #include "ieee80211_i.h" -@@ -68,7 +67,7 @@ static int ieee80211_del_iface(struct wi - return -ENODEV; - - /* we're under RTNL */ -- dev = __dev_get_by_index(&init_net, ifindex); -+ dev = __dev_get_by_index(ifindex); - if (!dev) - return 0; - -@@ -89,7 +88,7 @@ static int ieee80211_change_iface(struct - return -ENODEV; - - /* we're under RTNL */ -- dev = __dev_get_by_index(&init_net, ifindex); -+ dev = __dev_get_by_index(ifindex); - if (!dev) - return -ENODEV; - -Index: mac80211/net/mac80211/tx.c -=================================================================== ---- mac80211.orig/net/mac80211/tx.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/tx.c 2008-02-15 22:21:01.000000000 +0100 -@@ -18,7 +18,6 @@ - #include <linux/etherdevice.h> - #include <linux/bitmap.h> - #include <linux/rcupdate.h> --#include <net/net_namespace.h> - #include <net/ieee80211_radiotap.h> - #include <net/cfg80211.h> - #include <net/mac80211.h> -@@ -1051,7 +1050,7 @@ static int ieee80211_tx_prepare(struct i - struct net_device *dev; - - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; -- dev = dev_get_by_index(&init_net, pkt_data->ifindex); -+ dev = dev_get_by_index(pkt_data->ifindex); - if (unlikely(dev && !is_ieee80211_device(dev, mdev))) { - dev_put(dev); - dev = NULL; -@@ -1265,7 +1264,7 @@ int ieee80211_master_start_xmit(struct s - memset(&control, 0, sizeof(struct ieee80211_tx_control)); - - if (pkt_data->ifindex) -- odev = dev_get_by_index(&init_net, pkt_data->ifindex); -+ odev = dev_get_by_index(pkt_data->ifindex); - if (unlikely(odev && !is_ieee80211_device(odev, dev))) { - dev_put(odev); - odev = NULL; -Index: mac80211/net/mac80211/util.c -=================================================================== ---- mac80211.orig/net/mac80211/util.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/mac80211/util.c 2008-02-15 22:21:01.000000000 +0100 -@@ -20,7 +20,6 @@ - #include <linux/if_arp.h> - #include <linux/wireless.h> - #include <linux/bitmap.h> --#include <net/net_namespace.h> - #include <net/cfg80211.h> - #include <net/rtnetlink.h> - -Index: mac80211/net/wireless/sysfs.c -=================================================================== ---- mac80211.orig/net/wireless/sysfs.c 2008-02-15 22:20:53.000000000 +0100 -+++ mac80211/net/wireless/sysfs.c 2008-02-15 22:21:01.000000000 +0100 -@@ -53,7 +53,8 @@ static void wiphy_dev_release(struct dev - } - - #ifdef CONFIG_HOTPLUG --static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) -+static int wiphy_uevent(struct device *dev, char **envp, int num_envp, -+ char *buffer, int buffer_size) - { - /* TODO, we probably need stuff here */ - return 0; diff --git a/package/mac80211/patches/002-mac80211-allow-ap-vlan-modes.patch b/package/mac80211/patches/002-mac80211-allow-ap-vlan-modes.patch deleted file mode 100644 index eb40dae1f9..0000000000 --- a/package/mac80211/patches/002-mac80211-allow-ap-vlan-modes.patch +++ /dev/null @@ -1,25 +0,0 @@ -Subject: mac80211: allow AP and VLAN modes - -This adds AP/VLAN modes to the list of modes that a mac80211 -interface can be created in/switched into. - -Signed-off-by: Johannes Berg <johannes@sipsolutions.net> ---- - net/mac80211/cfg.c | 4 ++++ - 1 file changed, 4 insertions(+) - -Index: mac80211/net/mac80211/cfg.c -=================================================================== ---- mac80211.orig/net/mac80211/cfg.c 2008-02-16 20:16:09.000000000 +0100 -+++ mac80211/net/mac80211/cfg.c 2008-02-16 20:16:39.000000000 +0100 -@@ -27,6 +27,10 @@ nl80211_type_to_mac80211_type(enum nl802 - return IEEE80211_IF_TYPE_STA; - case NL80211_IFTYPE_MONITOR: - return IEEE80211_IF_TYPE_MNTR; -+ case NL80211_IFTYPE_AP: -+ return IEEE80211_IF_TYPE_AP; -+ case NL80211_IFTYPE_AP_VLAN: -+ return IEEE80211_IF_TYPE_VLAN; - default: - return IEEE80211_IF_TYPE_INVALID; - } diff --git a/package/mac80211/src/include/linux/ieee80211.h b/package/mac80211/src/include/linux/ieee80211.h deleted file mode 100644 index f577c8f1c6..0000000000 --- a/package/mac80211/src/include/linux/ieee80211.h +++ /dev/null @@ -1,561 +0,0 @@ -/* - * IEEE 802.11 defines - * - * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen - * <jkmaline@cc.hut.fi> - * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> - * Copyright (c) 2005, Devicescape Software, Inc. - * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef IEEE80211_H -#define IEEE80211_H - -#include <linux/types.h> -#include <asm/byteorder.h> - -#define FCS_LEN 4 - -#define IEEE80211_FCTL_VERS 0x0003 -#define IEEE80211_FCTL_FTYPE 0x000c -#define IEEE80211_FCTL_STYPE 0x00f0 -#define IEEE80211_FCTL_TODS 0x0100 -#define IEEE80211_FCTL_FROMDS 0x0200 -#define IEEE80211_FCTL_MOREFRAGS 0x0400 -#define IEEE80211_FCTL_RETRY 0x0800 -#define IEEE80211_FCTL_PM 0x1000 -#define IEEE80211_FCTL_MOREDATA 0x2000 -#define IEEE80211_FCTL_PROTECTED 0x4000 -#define IEEE80211_FCTL_ORDER 0x8000 - -#define IEEE80211_SCTL_FRAG 0x000F -#define IEEE80211_SCTL_SEQ 0xFFF0 - -#define IEEE80211_FTYPE_MGMT 0x0000 -#define IEEE80211_FTYPE_CTL 0x0004 -#define IEEE80211_FTYPE_DATA 0x0008 - -/* management */ -#define IEEE80211_STYPE_ASSOC_REQ 0x0000 -#define IEEE80211_STYPE_ASSOC_RESP 0x0010 -#define IEEE80211_STYPE_REASSOC_REQ 0x0020 -#define IEEE80211_STYPE_REASSOC_RESP 0x0030 -#define IEEE80211_STYPE_PROBE_REQ 0x0040 -#define IEEE80211_STYPE_PROBE_RESP 0x0050 -#define IEEE80211_STYPE_BEACON 0x0080 -#define IEEE80211_STYPE_ATIM 0x0090 -#define IEEE80211_STYPE_DISASSOC 0x00A0 -#define IEEE80211_STYPE_AUTH 0x00B0 -#define IEEE80211_STYPE_DEAUTH 0x00C0 -#define IEEE80211_STYPE_ACTION 0x00D0 - -/* control */ -#define IEEE80211_STYPE_BACK_REQ 0x0080 -#define IEEE80211_STYPE_BACK 0x0090 -#define IEEE80211_STYPE_PSPOLL 0x00A0 -#define IEEE80211_STYPE_RTS 0x00B0 -#define IEEE80211_STYPE_CTS 0x00C0 -#define IEEE80211_STYPE_ACK 0x00D0 -#define IEEE80211_STYPE_CFEND 0x00E0 -#define IEEE80211_STYPE_CFENDACK 0x00F0 - -/* data */ -#define IEEE80211_STYPE_DATA 0x0000 -#define IEEE80211_STYPE_DATA_CFACK 0x0010 -#define IEEE80211_STYPE_DATA_CFPOLL 0x0020 -#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030 -#define IEEE80211_STYPE_NULLFUNC 0x0040 -#define IEEE80211_STYPE_CFACK 0x0050 -#define IEEE80211_STYPE_CFPOLL 0x0060 -#define IEEE80211_STYPE_CFACKPOLL 0x0070 -#define IEEE80211_STYPE_QOS_DATA 0x0080 -#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090 -#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0 -#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0 -#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0 -#define IEEE80211_STYPE_QOS_CFACK 0x00D0 -#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0 -#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0 - - -/* miscellaneous IEEE 802.11 constants */ -#define IEEE80211_MAX_FRAG_THRESHOLD 2352 -#define IEEE80211_MAX_RTS_THRESHOLD 2353 -#define IEEE80211_MAX_AID 2007 -#define IEEE80211_MAX_TIM_LEN 251 -/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section - 6.2.1.1.2. - - 802.11e clarifies the figure in section 7.1.2. The frame body is - up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */ -#define IEEE80211_MAX_DATA_LEN 2304 -/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */ -#define IEEE80211_MAX_FRAME_LEN 2352 - -#define IEEE80211_MAX_SSID_LEN 32 - -struct ieee80211_hdr { - __le16 frame_control; - __le16 duration_id; - u8 addr1[6]; - u8 addr2[6]; - u8 addr3[6]; - __le16 seq_ctrl; - u8 addr4[6]; -} __attribute__ ((packed)); - - -struct ieee80211_mgmt { - __le16 frame_control; - __le16 duration; - u8 da[6]; - u8 sa[6]; - u8 bssid[6]; - __le16 seq_ctrl; - union { - struct { - __le16 auth_alg; - __le16 auth_transaction; - __le16 status_code; - /* possibly followed by Challenge text */ - u8 variable[0]; - } __attribute__ ((packed)) auth; - struct { - __le16 reason_code; - } __attribute__ ((packed)) deauth; - struct { - __le16 capab_info; - __le16 listen_interval; - /* followed by SSID and Supported rates */ - u8 variable[0]; - } __attribute__ ((packed)) assoc_req; - struct { - __le16 capab_info; - __le16 status_code; - __le16 aid; - /* followed by Supported rates */ - u8 variable[0]; - } __attribute__ ((packed)) assoc_resp, reassoc_resp; - struct { - __le16 capab_info; - __le16 listen_interval; - u8 current_ap[6]; - /* followed by SSID and Supported rates */ - u8 variable[0]; - } __attribute__ ((packed)) reassoc_req; - struct { - __le16 reason_code; - } __attribute__ ((packed)) disassoc; - struct { - __le64 timestamp; - __le16 beacon_int; - __le16 capab_info; - /* followed by some of SSID, Supported rates, - * FH Params, DS Params, CF Params, IBSS Params, TIM */ - u8 variable[0]; - } __attribute__ ((packed)) beacon; - struct { - /* only variable items: SSID, Supported rates */ - u8 variable[0]; - } __attribute__ ((packed)) probe_req; - struct { - __le64 timestamp; - __le16 beacon_int; - __le16 capab_info; - /* followed by some of SSID, Supported rates, - * FH Params, DS Params, CF Params, IBSS Params */ - u8 variable[0]; - } __attribute__ ((packed)) probe_resp; - struct { - u8 category; - union { - struct { - u8 action_code; - u8 dialog_token; - u8 status_code; - u8 variable[0]; - } __attribute__ ((packed)) wme_action; - struct{ - u8 action_code; - u8 element_id; - u8 length; - u8 switch_mode; - u8 new_chan; - u8 switch_count; - } __attribute__((packed)) chan_switch; - struct{ - u8 action_code; - u8 dialog_token; - __le16 capab; - __le16 timeout; - __le16 start_seq_num; - } __attribute__((packed)) addba_req; - struct{ - u8 action_code; - u8 dialog_token; - __le16 status; - __le16 capab; - __le16 timeout; - } __attribute__((packed)) addba_resp; - struct{ - u8 action_code; - __le16 params; - __le16 reason_code; - } __attribute__((packed)) delba; - } u; - } __attribute__ ((packed)) action; - } u; -} __attribute__ ((packed)); - - -/* Control frames */ -struct ieee80211_rts { - __le16 frame_control; - __le16 duration; - u8 ra[6]; - u8 ta[6]; -} __attribute__ ((packed)); - -struct ieee80211_cts { - __le16 frame_control; - __le16 duration; - u8 ra[6]; -} __attribute__ ((packed)); - -/** - * struct ieee80211_bar - HT Block Ack Request - * - * This structure refers to "HT BlockAckReq" as - * described in 802.11n draft section 7.2.1.7.1 - */ -struct ieee80211_bar { - __le16 frame_control; - __le16 duration; - __u8 ra[6]; - __u8 ta[6]; - __le16 control; - __le16 start_seq_num; -} __attribute__((packed)); - -/** - * struct ieee80211_ht_cap - HT capabilities - * - * This structure refers to "HT capabilities element" as - * described in 802.11n draft section 7.3.2.52 - */ -struct ieee80211_ht_cap { - __le16 cap_info; - u8 ampdu_params_info; - u8 supp_mcs_set[16]; - __le16 extended_ht_cap_info; - __le32 tx_BF_cap_info; - u8 antenna_selection_info; -} __attribute__ ((packed)); - -/** - * struct ieee80211_ht_cap - HT additional information - * - * This structure refers to "HT information element" as - * described in 802.11n draft section 7.3.2.53 - */ -struct ieee80211_ht_addt_info { - u8 control_chan; - u8 ht_param; - __le16 operation_mode; - __le16 stbc_param; - u8 basic_set[16]; -} __attribute__ ((packed)); - -/* 802.11n HT capabilities masks */ -#define IEEE80211_HT_CAP_SUP_WIDTH 0x0002 -#define IEEE80211_HT_CAP_MIMO_PS 0x000C -#define IEEE80211_HT_CAP_GRN_FLD 0x0010 -#define IEEE80211_HT_CAP_SGI_20 0x0020 -#define IEEE80211_HT_CAP_SGI_40 0x0040 -#define IEEE80211_HT_CAP_DELAY_BA 0x0400 -#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800 -#define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03 -#define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C -/* 802.11n HT IE masks */ -#define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03 -#define IEEE80211_HT_IE_CHA_WIDTH 0x04 -#define IEEE80211_HT_IE_HT_PROTECTION 0x0003 -#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004 -#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010 - -/* MIMO Power Save Modes */ -#define WLAN_HT_CAP_MIMO_PS_STATIC 0 -#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1 -#define WLAN_HT_CAP_MIMO_PS_INVALID 2 -#define WLAN_HT_CAP_MIMO_PS_DISABLED 3 - -/* Authentication algorithms */ -#define WLAN_AUTH_OPEN 0 -#define WLAN_AUTH_SHARED_KEY 1 -#define WLAN_AUTH_FAST_BSS_TRANSITION 2 -#define WLAN_AUTH_LEAP 128 - -#define WLAN_AUTH_CHALLENGE_LEN 128 - -#define WLAN_CAPABILITY_ESS (1<<0) -#define WLAN_CAPABILITY_IBSS (1<<1) -#define WLAN_CAPABILITY_CF_POLLABLE (1<<2) -#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3) -#define WLAN_CAPABILITY_PRIVACY (1<<4) -#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5) -#define WLAN_CAPABILITY_PBCC (1<<6) -#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7) -/* 802.11h */ -#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8) -#define WLAN_CAPABILITY_QOS (1<<9) -#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10) -#define WLAN_CAPABILITY_DSSS_OFDM (1<<13) - -/* 802.11g ERP information element */ -#define WLAN_ERP_NON_ERP_PRESENT (1<<0) -#define WLAN_ERP_USE_PROTECTION (1<<1) -#define WLAN_ERP_BARKER_PREAMBLE (1<<2) - -/* WLAN_ERP_BARKER_PREAMBLE values */ -enum { - WLAN_ERP_PREAMBLE_SHORT = 0, - WLAN_ERP_PREAMBLE_LONG = 1, -}; - -/* Status codes */ -enum ieee80211_statuscode { - WLAN_STATUS_SUCCESS = 0, - WLAN_STATUS_UNSPECIFIED_FAILURE = 1, - WLAN_STATUS_CAPS_UNSUPPORTED = 10, - WLAN_STATUS_REASSOC_NO_ASSOC = 11, - WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12, - WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13, - WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14, - WLAN_STATUS_CHALLENGE_FAIL = 15, - WLAN_STATUS_AUTH_TIMEOUT = 16, - WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17, - WLAN_STATUS_ASSOC_DENIED_RATES = 18, - /* 802.11b */ - WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19, - WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20, - WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21, - /* 802.11h */ - WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22, - WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23, - WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24, - /* 802.11g */ - WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25, - WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26, - /* 802.11i */ - WLAN_STATUS_INVALID_IE = 40, - WLAN_STATUS_INVALID_GROUP_CIPHER = 41, - WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42, - WLAN_STATUS_INVALID_AKMP = 43, - WLAN_STATUS_UNSUPP_RSN_VERSION = 44, - WLAN_STATUS_INVALID_RSN_IE_CAP = 45, - WLAN_STATUS_CIPHER_SUITE_REJECTED = 46, - /* 802.11e */ - WLAN_STATUS_UNSPECIFIED_QOS = 32, - WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33, - WLAN_STATUS_ASSOC_DENIED_LOWACK = 34, - WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35, - WLAN_STATUS_REQUEST_DECLINED = 37, - WLAN_STATUS_INVALID_QOS_PARAM = 38, - WLAN_STATUS_CHANGE_TSPEC = 39, - WLAN_STATUS_WAIT_TS_DELAY = 47, - WLAN_STATUS_NO_DIRECT_LINK = 48, - WLAN_STATUS_STA_NOT_PRESENT = 49, - WLAN_STATUS_STA_NOT_QSTA = 50, -}; - - -/* Reason codes */ -enum ieee80211_reasoncode { - WLAN_REASON_UNSPECIFIED = 1, - WLAN_REASON_PREV_AUTH_NOT_VALID = 2, - WLAN_REASON_DEAUTH_LEAVING = 3, - WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4, - WLAN_REASON_DISASSOC_AP_BUSY = 5, - WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6, - WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7, - WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8, - WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9, - /* 802.11h */ - WLAN_REASON_DISASSOC_BAD_POWER = 10, - WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11, - /* 802.11i */ - WLAN_REASON_INVALID_IE = 13, - WLAN_REASON_MIC_FAILURE = 14, - WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15, - WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16, - WLAN_REASON_IE_DIFFERENT = 17, - WLAN_REASON_INVALID_GROUP_CIPHER = 18, - WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19, - WLAN_REASON_INVALID_AKMP = 20, - WLAN_REASON_UNSUPP_RSN_VERSION = 21, - WLAN_REASON_INVALID_RSN_IE_CAP = 22, - WLAN_REASON_IEEE8021X_FAILED = 23, - WLAN_REASON_CIPHER_SUITE_REJECTED = 24, - /* 802.11e */ - WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32, - WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33, - WLAN_REASON_DISASSOC_LOW_ACK = 34, - WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35, - WLAN_REASON_QSTA_LEAVE_QBSS = 36, - WLAN_REASON_QSTA_NOT_USE = 37, - WLAN_REASON_QSTA_REQUIRE_SETUP = 38, - WLAN_REASON_QSTA_TIMEOUT = 39, - WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45, -}; - - -/* Information Element IDs */ -enum ieee80211_eid { - WLAN_EID_SSID = 0, - WLAN_EID_SUPP_RATES = 1, - WLAN_EID_FH_PARAMS = 2, - WLAN_EID_DS_PARAMS = 3, - WLAN_EID_CF_PARAMS = 4, - WLAN_EID_TIM = 5, - WLAN_EID_IBSS_PARAMS = 6, - WLAN_EID_CHALLENGE = 16, - /* 802.11d */ - WLAN_EID_COUNTRY = 7, - WLAN_EID_HP_PARAMS = 8, - WLAN_EID_HP_TABLE = 9, - WLAN_EID_REQUEST = 10, - /* 802.11e */ - WLAN_EID_QBSS_LOAD = 11, - WLAN_EID_EDCA_PARAM_SET = 12, - WLAN_EID_TSPEC = 13, - WLAN_EID_TCLAS = 14, - WLAN_EID_SCHEDULE = 15, - WLAN_EID_TS_DELAY = 43, - WLAN_EID_TCLAS_PROCESSING = 44, - WLAN_EID_QOS_CAPA = 46, - /* 802.11h */ - WLAN_EID_PWR_CONSTRAINT = 32, - WLAN_EID_PWR_CAPABILITY = 33, - WLAN_EID_TPC_REQUEST = 34, - WLAN_EID_TPC_REPORT = 35, - WLAN_EID_SUPPORTED_CHANNELS = 36, - WLAN_EID_CHANNEL_SWITCH = 37, - WLAN_EID_MEASURE_REQUEST = 38, - WLAN_EID_MEASURE_REPORT = 39, - WLAN_EID_QUIET = 40, - WLAN_EID_IBSS_DFS = 41, - /* 802.11g */ - WLAN_EID_ERP_INFO = 42, - WLAN_EID_EXT_SUPP_RATES = 50, - /* 802.11n */ - WLAN_EID_HT_CAPABILITY = 45, - WLAN_EID_HT_EXTRA_INFO = 61, - /* 802.11i */ - WLAN_EID_RSN = 48, - WLAN_EID_WPA = 221, - WLAN_EID_GENERIC = 221, - WLAN_EID_VENDOR_SPECIFIC = 221, - WLAN_EID_QOS_PARAMETER = 222 -}; - -/* Action category code */ -enum ieee80211_category { - WLAN_CATEGORY_SPECTRUM_MGMT = 0, - WLAN_CATEGORY_QOS = 1, - WLAN_CATEGORY_DLS = 2, - WLAN_CATEGORY_BACK = 3, - WLAN_CATEGORY_WMM = 17, -}; - -/* BACK action code */ -enum ieee80211_back_actioncode { - WLAN_ACTION_ADDBA_REQ = 0, - WLAN_ACTION_ADDBA_RESP = 1, - WLAN_ACTION_DELBA = 2, -}; - -/* BACK (block-ack) parties */ -enum ieee80211_back_parties { - WLAN_BACK_RECIPIENT = 0, - WLAN_BACK_INITIATOR = 1, - WLAN_BACK_TIMER = 2, -}; - -/* A-MSDU 802.11n */ -#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080 - -/* cipher suite selectors */ -#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00 -#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01 -#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02 -/* reserved: 0x000FAC03 */ -#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04 -#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05 - -#define WLAN_MAX_KEY_LEN 32 - -/** - * ieee80211_get_SA - get pointer to SA - * - * Given an 802.11 frame, this function returns the offset - * to the source address (SA). It does not verify that the - * header is long enough to contain the address, and the - * header must be long enough to contain the frame control - * field. - * - * @hdr: the frame - */ -static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr) -{ - u8 *raw = (u8 *) hdr; - u8 tofrom = (*(raw+1)) & 3; /* get the TODS and FROMDS bits */ - - switch (tofrom) { - case 2: - return hdr->addr3; - case 3: - return hdr->addr4; - } - return hdr->addr2; -} - -/** - * ieee80211_get_DA - get pointer to DA - * - * Given an 802.11 frame, this function returns the offset - * to the destination address (DA). It does not verify that - * the header is long enough to contain the address, and the - * header must be long enough to contain the frame control - * field. - * - * @hdr: the frame - */ -static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr) -{ - u8 *raw = (u8 *) hdr; - u8 to_ds = (*(raw+1)) & 1; /* get the TODS bit */ - - if (to_ds) - return hdr->addr3; - return hdr->addr1; -} - -/** - * ieee80211_get_morefrag - determine whether the MOREFRAGS bit is set - * - * This function determines whether the "more fragments" bit is set - * in the frame. - * - * @hdr: the frame - */ -static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr) -{ - return (le16_to_cpu(hdr->frame_control) & - IEEE80211_FCTL_MOREFRAGS) != 0; -} - -#endif /* IEEE80211_H */ diff --git a/package/mac80211/src/include/linux/nl80211.h b/package/mac80211/src/include/linux/nl80211.h deleted file mode 100644 index a9f0b93324..0000000000 --- a/package/mac80211/src/include/linux/nl80211.h +++ /dev/null @@ -1,382 +0,0 @@ -#ifndef __LINUX_NL80211_H -#define __LINUX_NL80211_H -/* - * 802.11 netlink interface public header - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ - -/** - * DOC: Station handling - * - * Stations are added per interface, but a special case exists with VLAN - * interfaces. When a station is bound to an AP interface, it may be moved - * into a VLAN identified by a VLAN interface index (%NL80211_ATTR_STA_VLAN). - * The station is still assumed to belong to the AP interface it was added - * to. - * - * TODO: need more info? - */ - -/** - * enum nl80211_commands - supported nl80211 commands - * - * @NL80211_CMD_UNSPEC: unspecified command to catch errors - * - * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request - * to get a list of all present wiphys. - * @NL80211_CMD_SET_WIPHY: set wiphy name, needs %NL80211_ATTR_WIPHY and - * %NL80211_ATTR_WIPHY_NAME. - * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request - * or rename notification. Has attributes %NL80211_ATTR_WIPHY and - * %NL80211_ATTR_WIPHY_NAME. - * @NL80211_CMD_DEL_WIPHY: Wiphy deleted. Has attributes - * %NL80211_ATTR_WIPHY and %NL80211_ATTR_WIPHY_NAME. - * - * @NL80211_CMD_GET_INTERFACE: Request an interface's configuration; - * either a dump request on a %NL80211_ATTR_WIPHY or a specific get - * on an %NL80211_ATTR_IFINDEX is supported. - * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires - * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE. - * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response - * to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX, - * %NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also - * be sent from userspace to request creation of a new virtual interface, - * then requires attributes %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFTYPE and - * %NL80211_ATTR_IFNAME. - * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes - * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from - * userspace to request deletion of a virtual interface, then requires - * attribute %NL80211_ATTR_IFINDEX. - * - * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified - * by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC. - * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT or - * %NL80211_ATTR_KEY_THRESHOLD. - * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA, - * %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER - * attributes. - * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX - * or %NL80211_ATTR_MAC. - * - * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a - * %NL80222_CMD_NEW_BEACON message) - * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface - * using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD, - * %NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes. - * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface, - * parameters are like for %NL80211_CMD_SET_BEACON. - * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it - * - * @NL80211_CMD_GET_STATION: Get station attributes for station identified by - * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX. - * @NL80211_CMD_SET_STATION: Set station attributes for station identified by - * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX. - * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the - * the interface identified by %NL80211_ATTR_IFINDEX. - * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC - * or, if no MAC address given, all stations, on the interface identified - * by %NL80211_ATTR_IFINDEX. - * - * @NL80211_CMD_MAX: highest used command number - * @__NL80211_CMD_AFTER_LAST: internal use - */ -enum nl80211_commands { -/* don't change the order or add anything inbetween, this is ABI! */ - NL80211_CMD_UNSPEC, - - NL80211_CMD_GET_WIPHY, /* can dump */ - NL80211_CMD_SET_WIPHY, - NL80211_CMD_NEW_WIPHY, - NL80211_CMD_DEL_WIPHY, - - NL80211_CMD_GET_INTERFACE, /* can dump */ - NL80211_CMD_SET_INTERFACE, - NL80211_CMD_NEW_INTERFACE, - NL80211_CMD_DEL_INTERFACE, - - NL80211_CMD_GET_KEY, - NL80211_CMD_SET_KEY, - NL80211_CMD_NEW_KEY, - NL80211_CMD_DEL_KEY, - - NL80211_CMD_GET_BEACON, - NL80211_CMD_SET_BEACON, - NL80211_CMD_NEW_BEACON, - NL80211_CMD_DEL_BEACON, - - NL80211_CMD_GET_STATION, - NL80211_CMD_SET_STATION, - NL80211_CMD_NEW_STATION, - NL80211_CMD_DEL_STATION, - - /* add commands here */ - - /* used to define NL80211_CMD_MAX below */ - __NL80211_CMD_AFTER_LAST, - NL80211_CMD_MAX = __NL80211_CMD_AFTER_LAST - 1 -}; - - -/** - * enum nl80211_attrs - nl80211 netlink attributes - * - * @NL80211_ATTR_UNSPEC: unspecified attribute to catch errors - * - * @NL80211_ATTR_WIPHY: index of wiphy to operate on, cf. - * /sys/class/ieee80211/<phyname>/index - * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming) - * - * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on - * @NL80211_ATTR_IFNAME: network interface name - * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype - * - * @NL80211_ATTR_MAC: MAC address (various uses) - * - * @NL80211_ATTR_KEY_DATA: (temporal) key data; for TKIP this consists of - * 16 bytes encryption key followed by 8 bytes each for TX and RX MIC - * keys - * @NL80211_ATTR_KEY_IDX: key ID (u8, 0-3) - * @NL80211_ATTR_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11 - * section 7.3.2.25.1, e.g. 0x000FAC04) - * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and - * CCMP keys, each six bytes in little endian - * - * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU - * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing - * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE - * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE - * - * @NL80211_ATTR_STA_AID: Association ID for the station (u16) - * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of - * &enum nl80211_sta_flags. - * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by - * IEEE 802.11 7.3.1.6 (u16). - * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported - * rates as defined by IEEE 802.11 7.3.2.2 but without the length - * restriction (at most %NL80211_MAX_SUPP_RATES). - * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station - * to, or the AP interface the station was originally added to to. - * @NL80211_ATTR_STA_STATS: statistics for a station, part of station info - * given for %NL80211_CMD_GET_STATION, nested attribute containing - * info as possible, see &enum nl80211_sta_stats. - * - * @NL80211_ATTR_WIPHY_BANDS: Information about an operating bands, - * consisting of a nested array. - * - * @NL80211_ATTR_MNTR_FLAGS: flags, nested element with NLA_FLAG attributes of - * &enum nl80211_mntr_flags. - * - * @NL80211_ATTR_MAX: highest attribute number currently defined - * @__NL80211_ATTR_AFTER_LAST: internal use - */ -enum nl80211_attrs { -/* don't change the order or add anything inbetween, this is ABI! */ - NL80211_ATTR_UNSPEC, - - NL80211_ATTR_WIPHY, - NL80211_ATTR_WIPHY_NAME, - - NL80211_ATTR_IFINDEX, - NL80211_ATTR_IFNAME, - NL80211_ATTR_IFTYPE, - - NL80211_ATTR_MAC, - - NL80211_ATTR_KEY_DATA, - NL80211_ATTR_KEY_IDX, - NL80211_ATTR_KEY_CIPHER, - NL80211_ATTR_KEY_SEQ, - NL80211_ATTR_KEY_DEFAULT, - - NL80211_ATTR_BEACON_INTERVAL, - NL80211_ATTR_DTIM_PERIOD, - NL80211_ATTR_BEACON_HEAD, - NL80211_ATTR_BEACON_TAIL, - - NL80211_ATTR_STA_AID, - NL80211_ATTR_STA_FLAGS, - NL80211_ATTR_STA_LISTEN_INTERVAL, - NL80211_ATTR_STA_SUPPORTED_RATES, - NL80211_ATTR_STA_VLAN, - NL80211_ATTR_STA_STATS, - - NL80211_ATTR_WIPHY_BANDS, - - NL80211_ATTR_MNTR_FLAGS, - - /* add attributes here, update the policy in nl80211.c */ - - __NL80211_ATTR_AFTER_LAST, - NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1 -}; - -#define NL80211_MAX_SUPP_RATES 32 - -/** - * enum nl80211_iftype - (virtual) interface types - * - * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides - * @NL80211_IFTYPE_ADHOC: independent BSS member - * @NL80211_IFTYPE_STATION: managed BSS member - * @NL80211_IFTYPE_AP: access point - * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points - * @NL80211_IFTYPE_WDS: wireless distribution interface - * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames - * @NL80211_IFTYPE_MAX: highest interface type number currently defined - * @__NL80211_IFTYPE_AFTER_LAST: internal use - * - * These values are used with the %NL80211_ATTR_IFTYPE - * to set the type of an interface. - * - */ -enum nl80211_iftype { - NL80211_IFTYPE_UNSPECIFIED, - NL80211_IFTYPE_ADHOC, - NL80211_IFTYPE_STATION, - NL80211_IFTYPE_AP, - NL80211_IFTYPE_AP_VLAN, - NL80211_IFTYPE_WDS, - NL80211_IFTYPE_MONITOR, - - /* keep last */ - __NL80211_IFTYPE_AFTER_LAST, - NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1 -}; - -/** - * enum nl80211_sta_flags - station flags - * - * Station flags. When a station is added to an AP interface, it is - * assumed to be already associated (and hence authenticated.) - * - * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X) - * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames - * with short barker preamble - * @NL80211_STA_FLAG_WME: station is WME/QoS capable - */ -enum nl80211_sta_flags { - __NL80211_STA_FLAG_INVALID, - NL80211_STA_FLAG_AUTHORIZED, - NL80211_STA_FLAG_SHORT_PREAMBLE, - NL80211_STA_FLAG_WME, - - /* keep last */ - __NL80211_STA_FLAG_AFTER_LAST, - NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1 -}; - -/** - * enum nl80211_sta_stats - station statistics - * - * These attribute types are used with %NL80211_ATTR_STA_STATS - * when getting information about a station. - * - * @__NL80211_STA_STAT_INVALID: attribute number 0 is reserved - * @NL80211_STA_STAT_INACTIVE_TIME: time since last activity (u32, msecs) - * @NL80211_STA_STAT_RX_BYTES: total received bytes (u32, from this station) - * @NL80211_STA_STAT_TX_BYTES: total transmitted bytes (u32, to this station) - * @__NL80211_STA_STAT_AFTER_LAST: internal - * @NL80211_STA_STAT_MAX: highest possible station stats attribute - */ -enum nl80211_sta_stats { - __NL80211_STA_STAT_INVALID, - NL80211_STA_STAT_INACTIVE_TIME, - NL80211_STA_STAT_RX_BYTES, - NL80211_STA_STAT_TX_BYTES, - - /* keep last */ - __NL80211_STA_STAT_AFTER_LAST, - NL80211_STA_STAT_MAX = __NL80211_STA_STAT_AFTER_LAST - 1 -}; - -/** - * enum nl80211_band_attr - band attributes - * @__NL80211_BAND_ATTR_INVALID: attribute number 0 is reserved - * @NL80211_BAND_ATTR_FREQS: supported frequencies in this band, - * an array of nested frequency attributes - * @NL80211_BAND_ATTR_RATES: supported bitrates in this band, - * an array of nested bitrate attributes - */ -enum nl80211_band_attr { - __NL80211_BAND_ATTR_INVALID, - NL80211_BAND_ATTR_FREQS, - NL80211_BAND_ATTR_RATES, - - /* keep last */ - __NL80211_BAND_ATTR_AFTER_LAST, - NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1 -}; - -/** - * enum nl80211_frequency_attr - frequency attributes - * @NL80211_FREQUENCY_ATTR_FREQ: Frequency in MHz - * @NL80211_FREQUENCY_ATTR_DISABLED: Channel is disabled in current - * regulatory domain. - * @NL80211_FREQUENCY_ATTR_PASSIVE_SCAN: Only passive scanning is - * permitted on this channel in current regulatory domain. - * @NL80211_FREQUENCY_ATTR_NO_IBSS: IBSS networks are not permitted - * on this channel in current regulatory domain. - * @NL80211_FREQUENCY_ATTR_RADAR: Radar detection is mandatory - * on this channel in current regulatory domain. - */ -enum nl80211_frequency_attr { - __NL80211_FREQUENCY_ATTR_INVALID, - NL80211_FREQUENCY_ATTR_FREQ, - NL80211_FREQUENCY_ATTR_DISABLED, - NL80211_FREQUENCY_ATTR_PASSIVE_SCAN, - NL80211_FREQUENCY_ATTR_NO_IBSS, - NL80211_FREQUENCY_ATTR_RADAR, - - /* keep last */ - __NL80211_FREQUENCY_ATTR_AFTER_LAST, - NL80211_FREQUENCY_ATTR_MAX = __NL80211_FREQUENCY_ATTR_AFTER_LAST - 1 -}; - -/** - * enum nl80211_bitrate_attr - bitrate attributes - * @NL80211_BITRATE_ATTR_RATE: Bitrate in units of 100 kbps - * @NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE: Short preamble supported - * in 2.4 GHz band. - */ -enum nl80211_bitrate_attr { - __NL80211_BITRATE_ATTR_INVALID, - NL80211_BITRATE_ATTR_RATE, - NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE, - - /* keep last */ - __NL80211_BITRATE_ATTR_AFTER_LAST, - NL80211_BITRATE_ATTR_MAX = __NL80211_BITRATE_ATTR_AFTER_LAST - 1 -}; - -/** - * enum nl80211_mntr_flags - monitor configuration flags - * - * Monitor configuration flags. - * - * @__NL80211_MNTR_FLAG_INVALID: reserved - * - * @NL80211_MNTR_FLAG_FCSFAIL: pass frames with bad FCS - * @NL80211_MNTR_FLAG_PLCPFAIL: pass frames with bad PLCP - * @NL80211_MNTR_FLAG_CONTROL: pass control frames - * @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering - * @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing. - * overrides all other flags. - * - * @__NL80211_MNTR_FLAG_AFTER_LAST: internal use - * @NL80211_MNTR_FLAG_MAX: highest possible monitor flag - */ -enum nl80211_mntr_flags { - __NL80211_MNTR_FLAG_INVALID, - NL80211_MNTR_FLAG_FCSFAIL, - NL80211_MNTR_FLAG_PLCPFAIL, - NL80211_MNTR_FLAG_CONTROL, - NL80211_MNTR_FLAG_OTHER_BSS, - NL80211_MNTR_FLAG_COOK_FRAMES, - - /* keep last */ - __NL80211_MNTR_FLAG_AFTER_LAST, - NL80211_MNTR_FLAG_MAX = __NL80211_MNTR_FLAG_AFTER_LAST - 1 -}; - -#endif /* __LINUX_NL80211_H */ diff --git a/package/mac80211/src/include/net/cfg80211.h b/package/mac80211/src/include/net/cfg80211.h deleted file mode 100644 index ab4caf6395..0000000000 --- a/package/mac80211/src/include/net/cfg80211.h +++ /dev/null @@ -1,270 +0,0 @@ -#ifndef __NET_CFG80211_H -#define __NET_CFG80211_H - -#include <linux/netlink.h> -#include <linux/skbuff.h> -#include <linux/nl80211.h> -#include <net/genetlink.h> - -/* - * 802.11 configuration in-kernel interface - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ - -/* Radiotap header iteration - * implemented in net/wireless/radiotap.c - * docs in Documentation/networking/radiotap-headers.txt - */ -/** - * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args - * @rtheader: pointer to the radiotap header we are walking through - * @max_length: length of radiotap header in cpu byte ordering - * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg - * @this_arg: pointer to current radiotap arg - * @arg_index: internal next argument index - * @arg: internal next argument pointer - * @next_bitmap: internal pointer to next present u32 - * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present - */ - -struct ieee80211_radiotap_iterator { - struct ieee80211_radiotap_header *rtheader; - int max_length; - int this_arg_index; - u8 *this_arg; - - int arg_index; - u8 *arg; - __le32 *next_bitmap; - u32 bitmap_shifter; -}; - -extern int ieee80211_radiotap_iterator_init( - struct ieee80211_radiotap_iterator *iterator, - struct ieee80211_radiotap_header *radiotap_header, - int max_length); - -extern int ieee80211_radiotap_iterator_next( - struct ieee80211_radiotap_iterator *iterator); - - - /** - * struct key_params - key information - * - * Information about a key - * - * @key: key material - * @key_len: length of key material - * @cipher: cipher suite selector - * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used - * with the get_key() callback, must be in little endian, - * length given by @seq_len. - */ -struct key_params { - u8 *key; - u8 *seq; - int key_len; - int seq_len; - u32 cipher; -}; - -/** - * struct beacon_parameters - beacon parameters - * - * Used to configure the beacon for an interface. - * - * @head: head portion of beacon (before TIM IE) - * or %NULL if not changed - * @tail: tail portion of beacon (after TIM IE) - * or %NULL if not changed - * @interval: beacon interval or zero if not changed - * @dtim_period: DTIM period or zero if not changed - * @head_len: length of @head - * @tail_len: length of @tail - */ -struct beacon_parameters { - u8 *head, *tail; - int interval, dtim_period; - int head_len, tail_len; -}; - -/** - * enum station_flags - station flags - * - * Station capability flags. Note that these must be the bits - * according to the nl80211 flags. - * - * @STATION_FLAG_CHANGED: station flags were changed - * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X) - * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames - * with short preambles - * @STATION_FLAG_WME: station is WME/QoS capable - */ -enum station_flags { - STATION_FLAG_CHANGED = 1<<0, - STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED, - STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE, - STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME, -}; - -/** - * struct station_parameters - station parameters - * - * Used to change and create a new station. - * - * @vlan: vlan interface station should belong to - * @supported_rates: supported rates in IEEE 802.11 format - * (or NULL for no change) - * @supported_rates_len: number of supported rates - * @station_flags: station flags (see &enum station_flags) - * @listen_interval: listen interval or -1 for no change - * @aid: AID or zero for no change - */ -struct station_parameters { - u8 *supported_rates; - struct net_device *vlan; - u32 station_flags; - int listen_interval; - u16 aid; - u8 supported_rates_len; -}; - -/** - * enum station_stats_flags - station statistics flags - * - * Used by the driver to indicate which info in &struct station_stats - * it has filled in during get_station(). - * - * @STATION_STAT_INACTIVE_TIME: @inactive_time filled - * @STATION_STAT_RX_BYTES: @rx_bytes filled - * @STATION_STAT_TX_BYTES: @tx_bytes filled - */ -enum station_stats_flags { - STATION_STAT_INACTIVE_TIME = 1<<0, - STATION_STAT_RX_BYTES = 1<<1, - STATION_STAT_TX_BYTES = 1<<2, -}; - -/** - * struct station_stats - station statistics - * - * Station information filled by driver for get_station(). - * - * @filled: bitflag of flags from &enum station_stats_flags - * @inactive_time: time since last station activity (tx/rx) in milliseconds - * @rx_bytes: bytes received from this station - * @tx_bytes: bytes transmitted to this station - */ -struct station_stats { - u32 filled; - u32 inactive_time; - u32 rx_bytes; - u32 tx_bytes; -}; - -/** - * enum monitor_flags - monitor flags - * - * Monitor interface configuration flags. Note that these must be the bits - * according to the nl80211 flags. - * - * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS - * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP - * @MONITOR_FLAG_CONTROL: pass control frames - * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering - * @MONITOR_FLAG_COOK_FRAMES: report frames after processing - */ -enum monitor_flags { - MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL, - MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL, - MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL, - MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS, - MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES, -}; - -/* from net/wireless.h */ -struct wiphy; - -/** - * struct cfg80211_ops - backend description for wireless configuration - * - * This struct is registered by fullmac card drivers and/or wireless stacks - * in order to handle configuration requests on their interfaces. - * - * All callbacks except where otherwise noted should return 0 - * on success or a negative error code. - * - * All operations are currently invoked under rtnl for consistency with the - * wireless extensions but this is subject to reevaluation as soon as this - * code is used more widely and we have a first user without wext. - * - * @add_virtual_intf: create a new virtual interface with the given name - * - * @del_virtual_intf: remove the virtual interface determined by ifindex. - * - * @change_virtual_intf: change type of virtual interface - * - * @add_key: add a key with the given parameters. @mac_addr will be %NULL - * when adding a group key. - * - * @get_key: get information about the key with the given parameters. - * @mac_addr will be %NULL when requesting information for a group - * key. All pointers given to the @callback function need not be valid - * after it returns. - * - * @del_key: remove a key given the @mac_addr (%NULL for a group key) - * and @key_index - * - * @set_default_key: set the default key on an interface - * - * @add_beacon: Add a beacon with given parameters, @head, @interval - * and @dtim_period will be valid, @tail is optional. - * @set_beacon: Change the beacon parameters for an access point mode - * interface. This should reject the call when no beacon has been - * configured. - * @del_beacon: Remove beacon configuration and stop sending the beacon. - * - * @add_station: Add a new station. - * - * @del_station: Remove a station; @mac may be NULL to remove all stations. - * - * @change_station: Modify a given station. - */ -struct cfg80211_ops { - int (*add_virtual_intf)(struct wiphy *wiphy, char *name, - enum nl80211_iftype type, u32 *flags); - int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex); - int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex, - enum nl80211_iftype type, u32 *flags); - - int (*add_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, u8 *mac_addr, - struct key_params *params); - int (*get_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, u8 *mac_addr, void *cookie, - void (*callback)(void *cookie, struct key_params*)); - int (*del_key)(struct wiphy *wiphy, struct net_device *netdev, - u8 key_index, u8 *mac_addr); - int (*set_default_key)(struct wiphy *wiphy, - struct net_device *netdev, - u8 key_index); - - int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *info); - int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *info); - int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev); - - - int (*add_station)(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_parameters *params); - int (*del_station)(struct wiphy *wiphy, struct net_device *dev, - u8 *mac); - int (*change_station)(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_parameters *params); - int (*get_station)(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_stats *stats); -}; - -#endif /* __NET_CFG80211_H */ diff --git a/package/mac80211/src/include/net/ieee80211_radiotap.h b/package/mac80211/src/include/net/ieee80211_radiotap.h deleted file mode 100644 index dfd8bf66ce..0000000000 --- a/package/mac80211/src/include/net/ieee80211_radiotap.h +++ /dev/null @@ -1,268 +0,0 @@ -/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */ -/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */ - -/*- - * Copyright (c) 2003, 2004 David Young. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of David Young may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID - * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - */ - -/* - * Modifications to fit into the linux IEEE 802.11 stack, - * Mike Kershaw (dragorn@kismetwireless.net) - */ - -#ifndef IEEE80211RADIOTAP_H -#define IEEE80211RADIOTAP_H - -#include <linux/if_ether.h> -#include <linux/kernel.h> -#include <asm/unaligned.h> - -/* Radiotap header version (from official NetBSD feed) */ -#define IEEE80211RADIOTAP_VERSION "1.5" -/* Base version of the radiotap packet header data */ -#define PKTHDR_RADIOTAP_VERSION 0 - -/* A generic radio capture format is desirable. There is one for - * Linux, but it is neither rigidly defined (there were not even - * units given for some fields) nor easily extensible. - * - * I suggest the following extensible radio capture format. It is - * based on a bitmap indicating which fields are present. - * - * I am trying to describe precisely what the application programmer - * should expect in the following, and for that reason I tell the - * units and origin of each measurement (where it applies), or else I - * use sufficiently weaselly language ("is a monotonically nondecreasing - * function of...") that I cannot set false expectations for lawyerly - * readers. - */ - -/* XXX tcpdump/libpcap do not tolerate variable-length headers, - * yet, so we pad every radiotap header to 64 bytes. Ugh. - */ -#define IEEE80211_RADIOTAP_HDRLEN 64 - -/* The radio capture header precedes the 802.11 header. - * All data in the header is little endian on all platforms. - */ -struct ieee80211_radiotap_header { - u8 it_version; /* Version 0. Only increases - * for drastic changes, - * introduction of compatible - * new fields does not count. - */ - u8 it_pad; - __le16 it_len; /* length of the whole - * header in bytes, including - * it_version, it_pad, - * it_len, and data fields. - */ - __le32 it_present; /* A bitmap telling which - * fields are present. Set bit 31 - * (0x80000000) to extend the - * bitmap by another 32 bits. - * Additional extensions are made - * by setting bit 31. - */ -}; - -/* Name Data type Units - * ---- --------- ----- - * - * IEEE80211_RADIOTAP_TSFT __le64 microseconds - * - * Value in microseconds of the MAC's 64-bit 802.11 Time - * Synchronization Function timer when the first bit of the - * MPDU arrived at the MAC. For received frames, only. - * - * IEEE80211_RADIOTAP_CHANNEL 2 x __le16 MHz, bitmap - * - * Tx/Rx frequency in MHz, followed by flags (see below). - * - * IEEE80211_RADIOTAP_FHSS __le16 see below - * - * For frequency-hopping radios, the hop set (first byte) - * and pattern (second byte). - * - * IEEE80211_RADIOTAP_RATE u8 500kb/s - * - * Tx/Rx data rate - * - * IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from - * one milliwatt (dBm) - * - * RF signal power at the antenna, decibel difference from - * one milliwatt. - * - * IEEE80211_RADIOTAP_DBM_ANTNOISE s8 decibels from - * one milliwatt (dBm) - * - * RF noise power at the antenna, decibel difference from one - * milliwatt. - * - * IEEE80211_RADIOTAP_DB_ANTSIGNAL u8 decibel (dB) - * - * RF signal power at the antenna, decibel difference from an - * arbitrary, fixed reference. - * - * IEEE80211_RADIOTAP_DB_ANTNOISE u8 decibel (dB) - * - * RF noise power at the antenna, decibel difference from an - * arbitrary, fixed reference point. - * - * IEEE80211_RADIOTAP_LOCK_QUALITY __le16 unitless - * - * Quality of Barker code lock. Unitless. Monotonically - * nondecreasing with "better" lock strength. Called "Signal - * Quality" in datasheets. (Is there a standard way to measure - * this?) - * - * IEEE80211_RADIOTAP_TX_ATTENUATION __le16 unitless - * - * Transmit power expressed as unitless distance from max - * power set at factory calibration. 0 is max power. - * Monotonically nondecreasing with lower power levels. - * - * IEEE80211_RADIOTAP_DB_TX_ATTENUATION __le16 decibels (dB) - * - * Transmit power expressed as decibel distance from max power - * set at factory calibration. 0 is max power. Monotonically - * nondecreasing with lower power levels. - * - * IEEE80211_RADIOTAP_DBM_TX_POWER s8 decibels from - * one milliwatt (dBm) - * - * Transmit power expressed as dBm (decibels from a 1 milliwatt - * reference). This is the absolute power level measured at - * the antenna port. - * - * IEEE80211_RADIOTAP_FLAGS u8 bitmap - * - * Properties of transmitted and received frames. See flags - * defined below. - * - * IEEE80211_RADIOTAP_ANTENNA u8 antenna index - * - * Unitless indication of the Rx/Tx antenna for this packet. - * The first antenna is antenna 0. - * - * IEEE80211_RADIOTAP_RX_FLAGS __le16 bitmap - * - * Properties of received frames. See flags defined below. - * - * IEEE80211_RADIOTAP_TX_FLAGS __le16 bitmap - * - * Properties of transmitted frames. See flags defined below. - * - * IEEE80211_RADIOTAP_RTS_RETRIES u8 data - * - * Number of rts retries a transmitted frame used. - * - * IEEE80211_RADIOTAP_DATA_RETRIES u8 data - * - * Number of unicast retries a transmitted frame used. - * - */ -enum ieee80211_radiotap_type { - IEEE80211_RADIOTAP_TSFT = 0, - IEEE80211_RADIOTAP_FLAGS = 1, - IEEE80211_RADIOTAP_RATE = 2, - IEEE80211_RADIOTAP_CHANNEL = 3, - IEEE80211_RADIOTAP_FHSS = 4, - IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5, - IEEE80211_RADIOTAP_DBM_ANTNOISE = 6, - IEEE80211_RADIOTAP_LOCK_QUALITY = 7, - IEEE80211_RADIOTAP_TX_ATTENUATION = 8, - IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9, - IEEE80211_RADIOTAP_DBM_TX_POWER = 10, - IEEE80211_RADIOTAP_ANTENNA = 11, - IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12, - IEEE80211_RADIOTAP_DB_ANTNOISE = 13, - IEEE80211_RADIOTAP_RX_FLAGS = 14, - IEEE80211_RADIOTAP_TX_FLAGS = 15, - IEEE80211_RADIOTAP_RTS_RETRIES = 16, - IEEE80211_RADIOTAP_DATA_RETRIES = 17, - IEEE80211_RADIOTAP_EXT = 31 -}; - -/* Channel flags. */ -#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */ -#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */ -#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */ -#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */ -#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */ -#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */ -#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */ -#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */ - -/* For IEEE80211_RADIOTAP_FLAGS */ -#define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received - * during CFP - */ -#define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received - * with short - * preamble - */ -#define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received - * with WEP encryption - */ -#define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received - * with fragmentation - */ -#define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */ -#define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between - * 802.11 header and payload - * (to 32-bit boundary) - */ -/* For IEEE80211_RADIOTAP_RX_FLAGS */ -#define IEEE80211_RADIOTAP_F_RX_BADFCS 0x0001 /* frame failed crc check */ - -/* For IEEE80211_RADIOTAP_TX_FLAGS */ -#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive - * retries */ -#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */ -#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */ - -/* Ugly macro to convert literal channel numbers into their mhz equivalents - * There are certianly some conditions that will break this (like feeding it '30') - * but they shouldn't arise since nothing talks on channel 30. */ -#define ieee80211chan2mhz(x) \ - (((x) <= 14) ? \ - (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ - ((x) + 1000) * 5) - -/* helpers */ -static inline int ieee80211_get_radiotap_len(unsigned char *data) -{ - struct ieee80211_radiotap_header *hdr = - (struct ieee80211_radiotap_header *)data; - - return le16_to_cpu(get_unaligned(&hdr->it_len)); -} - -#endif /* IEEE80211_RADIOTAP_H */ diff --git a/package/mac80211/src/include/net/mac80211.h b/package/mac80211/src/include/net/mac80211.h deleted file mode 100644 index 460da54a00..0000000000 --- a/package/mac80211/src/include/net/mac80211.h +++ /dev/null @@ -1,1537 +0,0 @@ -/* - * mac80211 <-> driver interface - * - * Copyright 2002-2005, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef MAC80211_H -#define MAC80211_H - -#include <linux/kernel.h> -#include <linux/if_ether.h> -#include <linux/skbuff.h> -#include <linux/wireless.h> -#include <linux/device.h> -#include <linux/ieee80211.h> -#include <net/wireless.h> -#include <net/cfg80211.h> - -/** - * DOC: Introduction - * - * mac80211 is the Linux stack for 802.11 hardware that implements - * only partial functionality in hard- or firmware. This document - * defines the interface between mac80211 and low-level hardware - * drivers. - */ - -/** - * DOC: Calling mac80211 from interrupts - * - * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be - * called in hardware interrupt context. The low-level driver must not call any - * other functions in hardware interrupt context. If there is a need for such - * call, the low-level driver should first ACK the interrupt and perform the - * IEEE 802.11 code call after this, e.g. from a scheduled workqueue function. - */ - -/** - * DOC: Warning - * - * If you're reading this document and not the header file itself, it will - * be incomplete because not all documentation has been converted yet. - */ - -/** - * DOC: Frame format - * - * As a general rule, when frames are passed between mac80211 and the driver, - * they start with the IEEE 802.11 header and include the same octets that are - * sent over the air except for the FCS which should be calculated by the - * hardware. - * - * There are, however, various exceptions to this rule for advanced features: - * - * The first exception is for hardware encryption and decryption offload - * where the IV/ICV may or may not be generated in hardware. - * - * Secondly, when the hardware handles fragmentation, the frame handed to - * the driver from mac80211 is the MSDU, not the MPDU. - * - * Finally, for received frames, the driver is able to indicate that it has - * filled a radiotap header and put that in front of the frame; if it does - * not do so then mac80211 may add this under certain circumstances. - */ - -/** - * struct ieee80211_ht_bss_info - describing BSS's HT characteristics - * - * This structure describes most essential parameters needed - * to describe 802.11n HT characteristics in a BSS - * - * @primary_channel: channel number of primery channel - * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width) - * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection) - */ -struct ieee80211_ht_bss_info { - u8 primary_channel; - u8 bss_cap; /* use IEEE80211_HT_IE_CHA_ */ - u8 bss_op_mode; /* use IEEE80211_HT_IE_ */ -}; - -/** - * struct ieee80211_tx_queue_params - transmit queue configuration - * - * The information provided in this structure is required for QoS - * transmit queue configuration. - * - * @aifs: arbitration interface space [0..255, -1: use default] - * @cw_min: minimum contention window [will be a value of the form - * 2^n-1 in the range 1..1023; 0: use default] - * @cw_max: maximum contention window [like @cw_min] - * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled - */ -struct ieee80211_tx_queue_params { - int aifs; - int cw_min; - int cw_max; - int burst_time; -}; - -/** - * struct ieee80211_tx_queue_stats_data - transmit queue statistics - * - * @len: number of packets in queue - * @limit: queue length limit - * @count: number of frames sent - */ -struct ieee80211_tx_queue_stats_data { - unsigned int len; - unsigned int limit; - unsigned int count; -}; - -/** - * enum ieee80211_tx_queue - transmit queue number - * - * These constants are used with some callbacks that take a - * queue number to set parameters for a queue. - * - * @IEEE80211_TX_QUEUE_DATA0: data queue 0 - * @IEEE80211_TX_QUEUE_DATA1: data queue 1 - * @IEEE80211_TX_QUEUE_DATA2: data queue 2 - * @IEEE80211_TX_QUEUE_DATA3: data queue 3 - * @IEEE80211_TX_QUEUE_DATA4: data queue 4 - * @IEEE80211_TX_QUEUE_SVP: ?? - * @NUM_TX_DATA_QUEUES: number of data queues - * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be - * sent after a beacon - * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames - * @NUM_TX_DATA_QUEUES_AMPDU: adding more queues for A-MPDU - */ -enum ieee80211_tx_queue { - IEEE80211_TX_QUEUE_DATA0, - IEEE80211_TX_QUEUE_DATA1, - IEEE80211_TX_QUEUE_DATA2, - IEEE80211_TX_QUEUE_DATA3, - IEEE80211_TX_QUEUE_DATA4, - IEEE80211_TX_QUEUE_SVP, - - NUM_TX_DATA_QUEUES, - -/* due to stupidity in the sub-ioctl userspace interface, the items in - * this struct need to have fixed values. As soon as it is removed, we can - * fix these entries. */ - IEEE80211_TX_QUEUE_AFTER_BEACON = 6, - IEEE80211_TX_QUEUE_BEACON = 7, - NUM_TX_DATA_QUEUES_AMPDU = 16 -}; - -struct ieee80211_tx_queue_stats { - struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES_AMPDU]; -}; - -struct ieee80211_low_level_stats { - unsigned int dot11ACKFailureCount; - unsigned int dot11RTSFailureCount; - unsigned int dot11FCSErrorCount; - unsigned int dot11RTSSuccessCount; -}; - -/** - * enum ieee80211_bss_change - BSS change notification flags - * - * These flags are used with the bss_info_changed() callback - * to indicate which BSS parameter changed. - * - * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated), - * also implies a change in the AID. - * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed - * @BSS_CHANGED_ERP_PREAMBLE: preamble changed - */ -enum ieee80211_bss_change { - BSS_CHANGED_ASSOC = 1<<0, - BSS_CHANGED_ERP_CTS_PROT = 1<<1, - BSS_CHANGED_ERP_PREAMBLE = 1<<2, -}; - -/** - * struct ieee80211_bss_conf - holds the BSS's changing parameters - * - * This structure keeps information about a BSS (and an association - * to that BSS) that can change during the lifetime of the BSS. - * - * @assoc: association status - * @aid: association ID number, valid only when @assoc is true - * @use_cts_prot: use CTS protection - * @use_short_preamble: use 802.11b short preamble - */ -struct ieee80211_bss_conf { - /* association related data */ - bool assoc; - u16 aid; - /* erp related data */ - bool use_cts_prot; - bool use_short_preamble; -}; - -/* Transmit control fields. This data structure is passed to low-level driver - * with each TX frame. The low-level driver is responsible for configuring - * the hardware to use given values (depending on what is supported). */ - -struct ieee80211_tx_control { - struct ieee80211_vif *vif; - struct ieee80211_rate *tx_rate; - - /* Transmit rate for RTS/CTS frame */ - struct ieee80211_rate *rts_cts_rate; - - /* retry rate for the last retries */ - struct ieee80211_rate *alt_retry_rate; - -#define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for - * this frame */ -#define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without - * encryption; e.g., for EAPOL - * frames */ -#define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending - * frame */ -#define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the - * frame (e.g., for combined - * 802.11g / 802.11b networks) */ -#define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to - * wait for an ack */ -#define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5) -#define IEEE80211_TXCTL_CLEAR_DST_MASK (1<<6) -#define IEEE80211_TXCTL_REQUEUE (1<<7) -#define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of - * the frame */ -#define IEEE80211_TXCTL_SHORT_PREAMBLE (1<<9) -#define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send - * using the through - * set_retry_limit configured - * long retry value */ -#define IEEE80211_TXCTL_EAPOL_FRAME (1<<11) /* internal to mac80211 */ -#define IEEE80211_TXCTL_SEND_AFTER_DTIM (1<<12) /* send this frame after DTIM - * beacon */ -#define IEEE80211_TXCTL_AMPDU (1<<13) /* this frame should be sent - * as part of an A-MPDU */ - u32 flags; /* tx control flags defined - * above */ - u8 key_idx; /* keyidx from hw->set_key(), undefined if - * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */ - u8 retry_limit; /* 1 = only first attempt, 2 = one retry, .. - * This could be used when set_retry_limit - * is not implemented by the driver */ - u8 antenna_sel_tx; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */ - u8 icv_len; /* length of the ICV/MIC field in octets */ - u8 iv_len; /* length of the IV field in octets */ - u8 queue; /* hardware queue to use for this frame; - * 0 = highest, hw->queues-1 = lowest */ - int type; /* internal */ -}; - - -/** - * enum mac80211_rx_flags - receive flags - * - * These flags are used with the @flag member of &struct ieee80211_rx_status. - * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame. - * Use together with %RX_FLAG_MMIC_STRIPPED. - * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware. - * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header. - * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame, - * verification has been done by the hardware. - * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame. - * If this flag is set, the stack cannot do any replay detection - * hence the driver or hardware will have to do that. - * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on - * the frame. - * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on - * the frame. - * @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field) - * is valid. - */ -enum mac80211_rx_flags { - RX_FLAG_MMIC_ERROR = 1<<0, - RX_FLAG_DECRYPTED = 1<<1, - RX_FLAG_RADIOTAP = 1<<2, - RX_FLAG_MMIC_STRIPPED = 1<<3, - RX_FLAG_IV_STRIPPED = 1<<4, - RX_FLAG_FAILED_FCS_CRC = 1<<5, - RX_FLAG_FAILED_PLCP_CRC = 1<<6, - RX_FLAG_TSFT = 1<<7, -}; - -/** - * struct ieee80211_rx_status - receive status - * - * The low-level driver should provide this information (the subset - * supported by hardware) to the 802.11 code with each received - * frame. - * @mactime: MAC timestamp as defined by 802.11 - * @band: the active band when this frame was received - * @freq: frequency the radio was tuned to when receiving this frame, in MHz - * @ssi: signal strength when receiving this frame - * @signal: used as 'qual' in statistics reporting - * @noise: PHY noise when receiving this frame - * @antenna: antenna used - * @rate_idx: index of data rate into band's supported rates - * @flag: %RX_FLAG_* - */ -struct ieee80211_rx_status { - u64 mactime; - enum ieee80211_band band; - int freq; - int ssi; - int signal; - int noise; - int antenna; - int rate_idx; - int flag; -}; - -/** - * enum ieee80211_tx_status_flags - transmit status flags - * - * Status flags to indicate various transmit conditions. - * - * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted - * because the destination STA was in powersave mode. - * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged - * @IEEE80211_TX_STATUS_AMPDU: The frame was aggregated, so status - * is for the whole aggregation. - */ -enum ieee80211_tx_status_flags { - IEEE80211_TX_STATUS_TX_FILTERED = 1<<0, - IEEE80211_TX_STATUS_ACK = 1<<1, - IEEE80211_TX_STATUS_AMPDU = 1<<2, -}; - -/** - * struct ieee80211_tx_status - transmit status - * - * As much information as possible should be provided for each transmitted - * frame with ieee80211_tx_status(). - * - * @control: a copy of the &struct ieee80211_tx_control passed to the driver - * in the tx() callback. - * @flags: transmit status flags, defined above - * @retry_count: number of retries - * @excessive_retries: set to 1 if the frame was retried many times - * but not acknowledged - * @ampdu_ack_len: number of aggregated frames. - * relevant only if IEEE80211_TX_STATUS_AMPDU was set. - * @ampdu_ack_map: block ack bit map for the aggregation. - * relevant only if IEEE80211_TX_STATUS_AMPDU was set. - * @ack_signal: signal strength of the ACK frame - * @queue_length: ?? REMOVE - * @queue_number: ?? REMOVE - */ -struct ieee80211_tx_status { - struct ieee80211_tx_control control; - u8 flags; - u8 retry_count; - bool excessive_retries; - u8 ampdu_ack_len; - u64 ampdu_ack_map; - int ack_signal; - int queue_length; - int queue_number; -}; - -/** - * enum ieee80211_conf_flags - configuration flags - * - * Flags to define PHY configuration options - * - * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time - * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported) - * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported) - */ -enum ieee80211_conf_flags { - IEEE80211_CONF_SHORT_SLOT_TIME = (1<<0), - IEEE80211_CONF_RADIOTAP = (1<<1), - IEEE80211_CONF_SUPPORT_HT_MODE = (1<<2), -}; - -/** - * struct ieee80211_conf - configuration of the device - * - * This struct indicates how the driver shall configure the hardware. - * - * @radio_enabled: when zero, driver is required to switch off the radio. - * TODO make a flag - * @beacon_int: beacon interval (TODO make interface config) - * @flags: configuration flags defined above - * @power_level: requested transmit power (in dBm) - * @max_antenna_gain: maximum antenna gain (in dBi) - * @antenna_sel_tx: transmit antenna selection, 0: default/diversity, - * 1/2: antenna 0/1 - * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx - * @ht_conf: describes current self configuration of 802.11n HT capabilies - * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters - * @channel: the channel to tune to - */ -struct ieee80211_conf { - unsigned int regulatory_domain; - int radio_enabled; - - int beacon_int; - u32 flags; - int power_level; - int max_antenna_gain; - u8 antenna_sel_tx; - u8 antenna_sel_rx; - - struct ieee80211_channel *channel; - - struct ieee80211_ht_info ht_conf; - struct ieee80211_ht_bss_info ht_bss_conf; -}; - -/** - * enum ieee80211_if_types - types of 802.11 network interfaces - * - * @IEEE80211_IF_TYPE_INVALID: invalid interface type, not used - * by mac80211 itself - * @IEEE80211_IF_TYPE_AP: interface in AP mode. - * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap - * daemon. Drivers should never see this type. - * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode. - * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode. - * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode. - * @IEEE80211_IF_TYPE_WDS: interface in WDS mode. - * @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers - * will never see this type. - */ -enum ieee80211_if_types { - IEEE80211_IF_TYPE_INVALID, - IEEE80211_IF_TYPE_AP, - IEEE80211_IF_TYPE_STA, - IEEE80211_IF_TYPE_IBSS, - IEEE80211_IF_TYPE_MNTR, - IEEE80211_IF_TYPE_WDS, - IEEE80211_IF_TYPE_VLAN, -}; - -/** - * struct ieee80211_vif - per-interface data - * - * Data in this structure is continually present for driver - * use during the life of a virtual interface. - * - * @type: type of this virtual interface - * @drv_priv: data area for driver use, will always be aligned to - * sizeof(void *). - */ -struct ieee80211_vif { - enum ieee80211_if_types type; - /* must be last */ - u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); -}; - -/** - * struct ieee80211_if_init_conf - initial configuration of an interface - * - * @vif: pointer to a driver-use per-interface structure. The pointer - * itself is also used for various functions including - * ieee80211_beacon_get() and ieee80211_get_buffered_bc(). - * @type: one of &enum ieee80211_if_types constants. Determines the type of - * added/removed interface. - * @mac_addr: pointer to MAC address of the interface. This pointer is valid - * until the interface is removed (i.e. it cannot be used after - * remove_interface() callback was called for this interface). - * - * This structure is used in add_interface() and remove_interface() - * callbacks of &struct ieee80211_hw. - * - * When you allow multiple interfaces to be added to your PHY, take care - * that the hardware can actually handle multiple MAC addresses. However, - * also take care that when there's no interface left with mac_addr != %NULL - * you remove the MAC address from the device to avoid acknowledging packets - * in pure monitor mode. - */ -struct ieee80211_if_init_conf { - enum ieee80211_if_types type; - struct ieee80211_vif *vif; - void *mac_addr; -}; - -/** - * struct ieee80211_if_conf - configuration of an interface - * - * @type: type of the interface. This is always the same as was specified in - * &struct ieee80211_if_init_conf. The type of an interface never changes - * during the life of the interface; this field is present only for - * convenience. - * @bssid: BSSID of the network we are associated to/creating. - * @ssid: used (together with @ssid_len) by drivers for hardware that - * generate beacons independently. The pointer is valid only during the - * config_interface() call, so copy the value somewhere if you need - * it. - * @ssid_len: length of the @ssid field. - * @beacon: beacon template. Valid only if @host_gen_beacon_template in - * &struct ieee80211_hw is set. The driver is responsible of freeing - * the sk_buff. - * @beacon_control: tx_control for the beacon template, this field is only - * valid when the @beacon field was set. - * - * This structure is passed to the config_interface() callback of - * &struct ieee80211_hw. - */ -struct ieee80211_if_conf { - int type; - u8 *bssid; - u8 *ssid; - size_t ssid_len; - struct sk_buff *beacon; - struct ieee80211_tx_control *beacon_control; -}; - -/** - * enum ieee80211_key_alg - key algorithm - * @ALG_WEP: WEP40 or WEP104 - * @ALG_TKIP: TKIP - * @ALG_CCMP: CCMP (AES) - */ -enum ieee80211_key_alg { - ALG_WEP, - ALG_TKIP, - ALG_CCMP, -}; - - -/** - * enum ieee80211_key_flags - key flags - * - * These flags are used for communication about keys between the driver - * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. - * - * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates - * that the STA this key will be used with could be using QoS. - * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the - * driver to indicate that it requires IV generation for this - * particular key. - * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by - * the driver for a TKIP key if it requires Michael MIC - * generation in software. - */ -enum ieee80211_key_flags { - IEEE80211_KEY_FLAG_WMM_STA = 1<<0, - IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, - IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, -}; - -/** - * struct ieee80211_key_conf - key information - * - * This key information is given by mac80211 to the driver by - * the set_key() callback in &struct ieee80211_ops. - * - * @hw_key_idx: To be set by the driver, this is the key index the driver - * wants to be given when a frame is transmitted and needs to be - * encrypted in hardware. - * @alg: The key algorithm. - * @flags: key flags, see &enum ieee80211_key_flags. - * @keyidx: the key index (0-3) - * @keylen: key material length - * @key: key material - */ -struct ieee80211_key_conf { - enum ieee80211_key_alg alg; - u8 hw_key_idx; - u8 flags; - s8 keyidx; - u8 keylen; - u8 key[0]; -}; - -/** - * enum set_key_cmd - key command - * - * Used with the set_key() callback in &struct ieee80211_ops, this - * indicates whether a key is being removed or added. - * - * @SET_KEY: a key is set - * @DISABLE_KEY: a key must be disabled - */ -enum set_key_cmd { - SET_KEY, DISABLE_KEY, -}; - -/** - * enum sta_notify_cmd - sta notify command - * - * Used with the sta_notify() callback in &struct ieee80211_ops, this - * indicates addition and removal of a station to station table - * - * @STA_NOTIFY_ADD: a station was added to the station table - * @STA_NOTIFY_REMOVE: a station being removed from the station table - */ -enum sta_notify_cmd { - STA_NOTIFY_ADD, STA_NOTIFY_REMOVE -}; - -/** - * enum ieee80211_hw_flags - hardware flags - * - * These flags are used to indicate hardware capabilities to - * the stack. Generally, flags here should have their meaning - * done in a way that the simplest hardware doesn't need setting - * any particular flags. There are some exceptions to this rule, - * however, so you are advised to review these flags carefully. - * - * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE: - * The device only needs to be supplied with a beacon template. - * If you need the host to generate each beacon then don't use - * this flag and call ieee80211_beacon_get() when you need the - * next beacon frame. Note that if you set this flag, you must - * implement the set_tim() callback for powersave mode to work - * properly. - * This flag is only relevant for access-point mode. - * - * @IEEE80211_HW_RX_INCLUDES_FCS: - * Indicates that received frames passed to the stack include - * the FCS at the end. - * - * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING: - * Some wireless LAN chipsets buffer broadcast/multicast frames - * for power saving stations in the hardware/firmware and others - * rely on the host system for such buffering. This option is used - * to configure the IEEE 802.11 upper layer to buffer broadcast and - * multicast frames when there are power saving stations so that - * the driver can fetch them with ieee80211_get_buffered_bc(). Note - * that not setting this flag works properly only when the - * %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because - * otherwise the stack will not know when the DTIM beacon was sent. - * - * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE: - * Hardware is not capable of short slot operation on the 2.4 GHz band. - * - * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE: - * Hardware is not capable of receiving frames with short preamble on - * the 2.4 GHz band. - */ -enum ieee80211_hw_flags { - IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0, - IEEE80211_HW_RX_INCLUDES_FCS = 1<<1, - IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2, - IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE = 1<<3, - IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4, -}; - -/** - * struct ieee80211_hw - hardware information and state - * - * This structure contains the configuration and hardware - * information for an 802.11 PHY. - * - * @wiphy: This points to the &struct wiphy allocated for this - * 802.11 PHY. You must fill in the @perm_addr and @dev - * members of this structure using SET_IEEE80211_DEV() - * and SET_IEEE80211_PERM_ADDR(). Additionally, all supported - * bands (with channels, bitrates) are registered here. - * - * @conf: &struct ieee80211_conf, device configuration, don't use. - * - * @workqueue: single threaded workqueue available for driver use, - * allocated by mac80211 on registration and flushed on - * unregistration. - * - * @priv: pointer to private area that was allocated for driver use - * along with this structure. - * - * @flags: hardware flags, see &enum ieee80211_hw_flags. - * - * @extra_tx_headroom: headroom to reserve in each transmit skb - * for use by the driver (e.g. for transmit headers.) - * - * @channel_change_time: time (in microseconds) it takes to change channels. - * - * @max_rssi: Maximum value for ssi in RX information, use - * negative numbers for dBm and 0 to indicate no support. - * - * @max_signal: like @max_rssi, but for the signal value. - * - * @max_noise: like @max_rssi, but for the noise value. - * - * @queues: number of available hardware transmit queues for - * data packets. WMM/QoS requires at least four. - * - * @rate_control_algorithm: rate control algorithm for this hardware. - * If unset (NULL), the default algorithm will be used. Must be - * set before calling ieee80211_register_hw(). - * - * @vif_data_size: size (in bytes) of the drv_priv data area - * within &struct ieee80211_vif. - */ -struct ieee80211_hw { - struct ieee80211_conf conf; - struct wiphy *wiphy; - struct workqueue_struct *workqueue; - const char *rate_control_algorithm; - void *priv; - u32 flags; - unsigned int extra_tx_headroom; - int channel_change_time; - int vif_data_size; - u8 queues; - s8 max_rssi; - s8 max_signal; - s8 max_noise; -}; - -/** - * SET_IEEE80211_DEV - set device for 802.11 hardware - * - * @hw: the &struct ieee80211_hw to set the device for - * @dev: the &struct device of this 802.11 device - */ -static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev) -{ - set_wiphy_dev(hw->wiphy, dev); -} - -/** - * SET_IEEE80211_PERM_ADDR - set the permanenet MAC address for 802.11 hardware - * - * @hw: the &struct ieee80211_hw to set the MAC address for - * @addr: the address to set - */ -static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr) -{ - memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); -} - -/** - * DOC: Hardware crypto acceleration - * - * mac80211 is capable of taking advantage of many hardware - * acceleration designs for encryption and decryption operations. - * - * The set_key() callback in the &struct ieee80211_ops for a given - * device is called to enable hardware acceleration of encryption and - * decryption. The callback takes an @address parameter that will be - * the broadcast address for default keys, the other station's hardware - * address for individual keys or the zero address for keys that will - * be used only for transmission. - * Multiple transmission keys with the same key index may be used when - * VLANs are configured for an access point. - * - * The @local_address parameter will always be set to our own address, - * this is only relevant if you support multiple local addresses. - * - * When transmitting, the TX control data will use the @hw_key_idx - * selected by the driver by modifying the &struct ieee80211_key_conf - * pointed to by the @key parameter to the set_key() function. - * - * The set_key() call for the %SET_KEY command should return 0 if - * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be - * added; if you return 0 then hw_key_idx must be assigned to the - * hardware key index, you are free to use the full u8 range. - * - * When the cmd is %DISABLE_KEY then it must succeed. - * - * Note that it is permissible to not decrypt a frame even if a key - * for it has been uploaded to hardware, the stack will not make any - * decision based on whether a key has been uploaded or not but rather - * based on the receive flags. - * - * The &struct ieee80211_key_conf structure pointed to by the @key - * parameter is guaranteed to be valid until another call to set_key() - * removes it, but it can only be used as a cookie to differentiate - * keys. - */ - -/** - * DOC: Frame filtering - * - * mac80211 requires to see many management frames for proper - * operation, and users may want to see many more frames when - * in monitor mode. However, for best CPU usage and power consumption, - * having as few frames as possible percolate through the stack is - * desirable. Hence, the hardware should filter as much as possible. - * - * To achieve this, mac80211 uses filter flags (see below) to tell - * the driver's configure_filter() function which frames should be - * passed to mac80211 and which should be filtered out. - * - * The configure_filter() callback is invoked with the parameters - * @mc_count and @mc_list for the combined multicast address list - * of all virtual interfaces, @changed_flags telling which flags - * were changed and @total_flags with the new flag states. - * - * If your device has no multicast address filters your driver will - * need to check both the %FIF_ALLMULTI flag and the @mc_count - * parameter to see whether multicast frames should be accepted - * or dropped. - * - * All unsupported flags in @total_flags must be cleared, i.e. you - * should clear all bits except those you honoured. - */ - -/** - * enum ieee80211_filter_flags - hardware filter flags - * - * These flags determine what the filter in hardware should be - * programmed to let through and what should not be passed to the - * stack. It is always safe to pass more frames than requested, - * but this has negative impact on power consumption. - * - * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS, - * think of the BSS as your network segment and then this corresponds - * to the regular ethernet device promiscuous mode. - * - * @FIF_ALLMULTI: pass all multicast frames, this is used if requested - * by the user or if the hardware is not capable of filtering by - * multicast address. - * - * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the - * %RX_FLAG_FAILED_FCS_CRC for them) - * - * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set - * the %RX_FLAG_FAILED_PLCP_CRC for them - * - * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate - * to the hardware that it should not filter beacons or probe responses - * by BSSID. Filtering them can greatly reduce the amount of processing - * mac80211 needs to do and the amount of CPU wakeups, so you should - * honour this flag if possible. - * - * @FIF_CONTROL: pass control frames, if PROMISC_IN_BSS is not set then - * only those addressed to this station - * - * @FIF_OTHER_BSS: pass frames destined to other BSSes - */ -enum ieee80211_filter_flags { - FIF_PROMISC_IN_BSS = 1<<0, - FIF_ALLMULTI = 1<<1, - FIF_FCSFAIL = 1<<2, - FIF_PLCPFAIL = 1<<3, - FIF_BCN_PRBRESP_PROMISC = 1<<4, - FIF_CONTROL = 1<<5, - FIF_OTHER_BSS = 1<<6, -}; - -/** - * enum ieee80211_ampdu_mlme_action - A-MPDU actions - * - * These flags are used with the ampdu_action() callback in - * &struct ieee80211_ops to indicate which action is needed. - * @IEEE80211_AMPDU_RX_START: start Rx aggregation - * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation - * @IEEE80211_AMPDU_TX_START: start Tx aggregation - * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation - */ -enum ieee80211_ampdu_mlme_action { - IEEE80211_AMPDU_RX_START, - IEEE80211_AMPDU_RX_STOP, - IEEE80211_AMPDU_TX_START, - IEEE80211_AMPDU_TX_STOP, -}; - -/** - * struct ieee80211_ops - callbacks from mac80211 to the driver - * - * This structure contains various callbacks that the driver may - * handle or, in some cases, must handle, for example to configure - * the hardware to a new channel or to transmit a frame. - * - * @tx: Handler that 802.11 module calls for each transmitted frame. - * skb contains the buffer starting from the IEEE 802.11 header. - * The low-level driver should send the frame out based on - * configuration in the TX control data. Must be implemented and - * atomic. - * - * @start: Called before the first netdevice attached to the hardware - * is enabled. This should turn on the hardware and must turn on - * frame reception (for possibly enabled monitor interfaces.) - * Returns negative error codes, these may be seen in userspace, - * or zero. - * When the device is started it should not have a MAC address - * to avoid acknowledging frames before a non-monitor device - * is added. - * Must be implemented. - * - * @stop: Called after last netdevice attached to the hardware - * is disabled. This should turn off the hardware (at least - * it must turn off frame reception.) - * May be called right after add_interface if that rejects - * an interface. - * Must be implemented. - * - * @add_interface: Called when a netdevice attached to the hardware is - * enabled. Because it is not called for monitor mode devices, @open - * and @stop must be implemented. - * The driver should perform any initialization it needs before - * the device can be enabled. The initial configuration for the - * interface is given in the conf parameter. - * The callback may refuse to add an interface by returning a - * negative error code (which will be seen in userspace.) - * Must be implemented. - * - * @remove_interface: Notifies a driver that an interface is going down. - * The @stop callback is called after this if it is the last interface - * and no monitor interfaces are present. - * When all interfaces are removed, the MAC address in the hardware - * must be cleared so the device no longer acknowledges packets, - * the mac_addr member of the conf structure is, however, set to the - * MAC address of the device going away. - * Hence, this callback must be implemented. - * - * @config: Handler for configuration requests. IEEE 802.11 code calls this - * function to change hardware configuration, e.g., channel. - * - * @config_interface: Handler for configuration requests related to interfaces - * (e.g. BSSID changes.) - * - * @bss_info_changed: Handler for configuration requests related to BSS - * parameters that may vary during BSS's lifespan, and may affect low - * level driver (e.g. assoc/disassoc status, erp parameters). - * This function should not be used if no BSS has been set, unless - * for association indication. The @changed parameter indicates which - * of the bss parameters has changed when a call is made. This callback - * has to be atomic. - * - * @configure_filter: Configure the device's RX filter. - * See the section "Frame filtering" for more information. - * This callback must be implemented and atomic. - * - * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon - * generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set) - * mac80211 calls this function when a TIM bit must be set or cleared - * for a given AID. Must be atomic. - * - * @set_key: See the section "Hardware crypto acceleration" - * This callback can sleep, and is only called between add_interface - * and remove_interface calls, i.e. while the interface with the - * given local_address is enabled. - * - * @hw_scan: Ask the hardware to service the scan request, no need to start - * the scan state machine in stack. The scan must honour the channel - * configuration done by the regulatory agent in the wiphy's registered - * bands. - * - * @get_stats: return low-level statistics - * - * @get_tkip_seq: If your device implements TKIP encryption in hardware this - * callback should be provided to read the TKIP transmit IVs (both IV32 - * and IV16) for the given key from hardware. - * - * @set_rts_threshold: Configuration of RTS threshold (if device needs it) - * - * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if - * the device does fragmentation by itself; if this method is assigned then - * the stack will not do fragmentation. - * - * @set_retry_limit: Configuration of retry limits (if device needs it) - * - * @sta_notify: Notifies low level driver about addition or removal - * of assocaited station or AP. - * - * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), - * bursting) for a hardware TX queue. The @queue parameter uses the - * %IEEE80211_TX_QUEUE_* constants. Must be atomic. - * - * @get_tx_stats: Get statistics of the current TX queue status. This is used - * to get number of currently queued packets (queue length), maximum queue - * size (limit), and total number of packets sent using each TX queue - * (count). This information is used for WMM to find out which TX - * queues have room for more packets and by hostapd to provide - * statistics about the current queueing state to external programs. - * - * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently, - * this is only used for IBSS mode debugging and, as such, is not a - * required function. Must be atomic. - * - * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize - * with other STAs in the IBSS. This is only used in IBSS mode. This - * function is optional if the firmware/hardware takes full care of - * TSF synchronization. - * - * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point, - * IBSS uses a fixed beacon frame which is configured using this - * function. - * If the driver returns success (0) from this callback, it owns - * the skb. That means the driver is responsible to kfree_skb() it. - * The control structure is not dynamically allocated. That means the - * driver does not own the pointer and if it needs it somewhere - * outside of the context of this function, it must copy it - * somewhere else. - * This handler is required only for IBSS mode. - * - * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us. - * This is needed only for IBSS mode and the result of this function is - * used to determine whether to reply to Probe Requests. - * - * @conf_ht: Configures low level driver with 802.11n HT data. Must be atomic. - * - * @ampdu_action: Perform a certain A-MPDU action - * The RA/TID combination determines the destination and TID we want - * the ampdu action to be performed for. The action is defined through - * ieee80211_ampdu_mlme_action. Starting sequence number (@ssn) - * is the first frame we expect to perform the action on. notice - * that TX/RX_STOP can pass NULL for this parameter. - */ -struct ieee80211_ops { - int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control); - int (*start)(struct ieee80211_hw *hw); - void (*stop)(struct ieee80211_hw *hw); - int (*add_interface)(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf); - void (*remove_interface)(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf); - int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); - int (*config_interface)(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_if_conf *conf); - void (*bss_info_changed)(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *info, - u32 changed); - void (*configure_filter)(struct ieee80211_hw *hw, - unsigned int changed_flags, - unsigned int *total_flags, - int mc_count, struct dev_addr_list *mc_list); - int (*set_tim)(struct ieee80211_hw *hw, int aid, int set); - int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd, - const u8 *local_address, const u8 *address, - struct ieee80211_key_conf *key); - int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len); - int (*get_stats)(struct ieee80211_hw *hw, - struct ieee80211_low_level_stats *stats); - void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx, - u32 *iv32, u16 *iv16); - int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); - int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); - int (*set_retry_limit)(struct ieee80211_hw *hw, - u32 short_retry, u32 long_retr); - void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - enum sta_notify_cmd, const u8 *addr); - int (*conf_tx)(struct ieee80211_hw *hw, int queue, - const struct ieee80211_tx_queue_params *params); - int (*get_tx_stats)(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats); - u64 (*get_tsf)(struct ieee80211_hw *hw); - void (*reset_tsf)(struct ieee80211_hw *hw); - int (*beacon_update)(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_control *control); - int (*tx_last_beacon)(struct ieee80211_hw *hw); - int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); - int (*ampdu_action)(struct ieee80211_hw *hw, - enum ieee80211_ampdu_mlme_action action, - const u8 *addr, u16 tid, u16 *ssn); -}; - -/** - * ieee80211_alloc_hw - Allocate a new hardware device - * - * This must be called once for each hardware device. The returned pointer - * must be used to refer to this device when calling other functions. - * mac80211 allocates a private data area for the driver pointed to by - * @priv in &struct ieee80211_hw, the size of this area is given as - * @priv_data_len. - * - * @priv_data_len: length of private data - * @ops: callbacks for this device - */ -struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, - const struct ieee80211_ops *ops); - -/** - * ieee80211_register_hw - Register hardware device - * - * You must call this function before any other functions - * except ieee80211_register_hwmode. - * - * @hw: the device to register as returned by ieee80211_alloc_hw() - */ -int ieee80211_register_hw(struct ieee80211_hw *hw); - -#ifdef CONFIG_MAC80211_LEDS -extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); -#endif -/** - * ieee80211_get_tx_led_name - get name of TX LED - * - * mac80211 creates a transmit LED trigger for each wireless hardware - * that can be used to drive LEDs if your driver registers a LED device. - * This function returns the name (or %NULL if not configured for LEDs) - * of the trigger so you can automatically link the LED device. - * - * @hw: the hardware to get the LED trigger name for - */ -static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_MAC80211_LEDS - return __ieee80211_get_tx_led_name(hw); -#else - return NULL; -#endif -} - -/** - * ieee80211_get_rx_led_name - get name of RX LED - * - * mac80211 creates a receive LED trigger for each wireless hardware - * that can be used to drive LEDs if your driver registers a LED device. - * This function returns the name (or %NULL if not configured for LEDs) - * of the trigger so you can automatically link the LED device. - * - * @hw: the hardware to get the LED trigger name for - */ -static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_MAC80211_LEDS - return __ieee80211_get_rx_led_name(hw); -#else - return NULL; -#endif -} - -/** - * ieee80211_get_assoc_led_name - get name of association LED - * - * mac80211 creates a association LED trigger for each wireless hardware - * that can be used to drive LEDs if your driver registers a LED device. - * This function returns the name (or %NULL if not configured for LEDs) - * of the trigger so you can automatically link the LED device. - * - * @hw: the hardware to get the LED trigger name for - */ -static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_MAC80211_LEDS - return __ieee80211_get_assoc_led_name(hw); -#else - return NULL; -#endif -} - -/** - * ieee80211_get_radio_led_name - get name of radio LED - * - * mac80211 creates a radio change LED trigger for each wireless hardware - * that can be used to drive LEDs if your driver registers a LED device. - * This function returns the name (or %NULL if not configured for LEDs) - * of the trigger so you can automatically link the LED device. - * - * @hw: the hardware to get the LED trigger name for - */ -static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_MAC80211_LEDS - return __ieee80211_get_radio_led_name(hw); -#else - return NULL; -#endif -} - -/** - * ieee80211_unregister_hw - Unregister a hardware device - * - * This function instructs mac80211 to free allocated resources - * and unregister netdevices from the networking subsystem. - * - * @hw: the hardware to unregister - */ -void ieee80211_unregister_hw(struct ieee80211_hw *hw); - -/** - * ieee80211_free_hw - free hardware descriptor - * - * This function frees everything that was allocated, including the - * private data for the driver. You must call ieee80211_unregister_hw() - * before calling this function - * - * @hw: the hardware to free - */ -void ieee80211_free_hw(struct ieee80211_hw *hw); - -/* trick to avoid symbol clashes with the ieee80211 subsystem */ -void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status); - -/** - * ieee80211_rx - receive frame - * - * Use this function to hand received frames to mac80211. The receive - * buffer in @skb must start with an IEEE 802.11 header or a radiotap - * header if %RX_FLAG_RADIOTAP is set in the @status flags. - * - * This function may not be called in IRQ context. - * - * @hw: the hardware this frame came in on - * @skb: the buffer to receive, owned by mac80211 after this call - * @status: status of this frame; the status pointer need not be valid - * after this function returns - */ -static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status) -{ - __ieee80211_rx(hw, skb, status); -} - -/** - * ieee80211_rx_irqsafe - receive frame - * - * Like ieee80211_rx() but can be called in IRQ context - * (internally defers to a workqueue.) - * - * @hw: the hardware this frame came in on - * @skb: the buffer to receive, owned by mac80211 after this call - * @status: status of this frame; the status pointer need not be valid - * after this function returns and is not freed by mac80211, - * it is recommended that it points to a stack area - */ -void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_rx_status *status); - -/** - * ieee80211_tx_status - transmit status callback - * - * Call this function for all transmitted frames after they have been - * transmitted. It is permissible to not call this function for - * multicast frames but this can affect statistics. - * - * @hw: the hardware the frame was transmitted by - * @skb: the frame that was transmitted, owned by mac80211 after this call - * @status: status information for this frame; the status pointer need not - * be valid after this function returns and is not freed by mac80211, - * it is recommended that it points to a stack area - */ -void ieee80211_tx_status(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_status *status); -void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_status *status); - -/** - * ieee80211_beacon_get - beacon generation function - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @control: will be filled with information needed to send this beacon. - * - * If the beacon frames are generated by the host system (i.e., not in - * hardware/firmware), the low-level driver uses this function to receive - * the next beacon frame from the 802.11 code. The low-level is responsible - * for calling this function before beacon data is needed (e.g., based on - * hardware interrupt). Returned skb is used only once and low-level driver - * is responsible of freeing it. - */ -struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_tx_control *control); - -/** - * ieee80211_rts_get - RTS frame generation function - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @frame: pointer to the frame that is going to be protected by the RTS. - * @frame_len: the frame length (in octets). - * @frame_txctl: &struct ieee80211_tx_control of the frame. - * @rts: The buffer where to store the RTS frame. - * - * If the RTS frames are generated by the host system (i.e., not in - * hardware/firmware), the low-level driver uses this function to receive - * the next RTS frame from the 802.11 code. The low-level is responsible - * for calling this function before and RTS frame is needed. - */ -void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - const void *frame, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl, - struct ieee80211_rts *rts); - -/** - * ieee80211_rts_duration - Get the duration field for an RTS frame - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @frame_len: the length of the frame that is going to be protected by the RTS. - * @frame_txctl: &struct ieee80211_tx_control of the frame. - * - * If the RTS is generated in firmware, but the host system must provide - * the duration field, the low-level driver uses this function to receive - * the duration field value in little-endian byteorder. - */ -__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl); - -/** - * ieee80211_ctstoself_get - CTS-to-self frame generation function - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @frame: pointer to the frame that is going to be protected by the CTS-to-self. - * @frame_len: the frame length (in octets). - * @frame_txctl: &struct ieee80211_tx_control of the frame. - * @cts: The buffer where to store the CTS-to-self frame. - * - * If the CTS-to-self frames are generated by the host system (i.e., not in - * hardware/firmware), the low-level driver uses this function to receive - * the next CTS-to-self frame from the 802.11 code. The low-level is responsible - * for calling this function before and CTS-to-self frame is needed. - */ -void ieee80211_ctstoself_get(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - const void *frame, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl, - struct ieee80211_cts *cts); - -/** - * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @frame_len: the length of the frame that is going to be protected by the CTS-to-self. - * @frame_txctl: &struct ieee80211_tx_control of the frame. - * - * If the CTS-to-self is generated in firmware, but the host system must provide - * the duration field, the low-level driver uses this function to receive - * the duration field value in little-endian byteorder. - */ -__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - size_t frame_len, - const struct ieee80211_tx_control *frame_txctl); - -/** - * ieee80211_generic_frame_duration - Calculate the duration field for a frame - * @hw: pointer obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @frame_len: the length of the frame. - * @rate: the rate at which the frame is going to be transmitted. - * - * Calculate the duration field of some generic frame, given its - * length and transmission rate (in 100kbps). - */ -__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - size_t frame_len, - struct ieee80211_rate *rate); - -/** - * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. - * @control: will be filled with information needed to send returned frame. - * - * Function for accessing buffered broadcast and multicast frames. If - * hardware/firmware does not implement buffering of broadcast/multicast - * frames when power saving is used, 802.11 code buffers them in the host - * memory. The low-level driver uses this function to fetch next buffered - * frame. In most cases, this is used when generating beacon frame. This - * function returns a pointer to the next buffered skb or NULL if no more - * buffered frames are available. - * - * Note: buffered frames are returned only after DTIM beacon frame was - * generated with ieee80211_beacon_get() and the low-level driver must thus - * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns - * NULL if the previous generated beacon was not DTIM, so the low-level driver - * does not need to check for DTIM beacons separately and should be able to - * use common code for all beacons. - */ -struct sk_buff * -ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - struct ieee80211_tx_control *control); - -/** - * ieee80211_get_hdrlen_from_skb - get header length from data - * - * Given an skb with a raw 802.11 header at the data pointer this function - * returns the 802.11 header length in bytes (not including encryption - * headers). If the data in the sk_buff is too short to contain a valid 802.11 - * header the function returns 0. - * - * @skb: the frame - */ -int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); - -/** - * ieee80211_get_hdrlen - get header length from frame control - * - * This function returns the 802.11 header length in bytes (not including - * encryption headers.) - * - * @fc: the frame control field (in CPU endianness) - */ -int ieee80211_get_hdrlen(u16 fc); - -/** - * ieee80211_wake_queue - wake specific queue - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @queue: queue number (counted from zero). - * - * Drivers should use this function instead of netif_wake_queue. - */ -void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue); - -/** - * ieee80211_stop_queue - stop specific queue - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @queue: queue number (counted from zero). - * - * Drivers should use this function instead of netif_stop_queue. - */ -void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue); - -/** - * ieee80211_start_queues - start all queues - * @hw: pointer to as obtained from ieee80211_alloc_hw(). - * - * Drivers should use this function instead of netif_start_queue. - */ -void ieee80211_start_queues(struct ieee80211_hw *hw); - -/** - * ieee80211_stop_queues - stop all queues - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * - * Drivers should use this function instead of netif_stop_queue. - */ -void ieee80211_stop_queues(struct ieee80211_hw *hw); - -/** - * ieee80211_wake_queues - wake all queues - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * - * Drivers should use this function instead of netif_wake_queue. - */ -void ieee80211_wake_queues(struct ieee80211_hw *hw); - -/** - * ieee80211_scan_completed - completed hardware scan - * - * When hardware scan offload is used (i.e. the hw_scan() callback is - * assigned) this function needs to be called by the driver to notify - * mac80211 that the scan finished. - * - * @hw: the hardware that finished the scan - */ -void ieee80211_scan_completed(struct ieee80211_hw *hw); - -/** - * ieee80211_iterate_active_interfaces - iterate active interfaces - * - * This function iterates over the interfaces associated with a given - * hardware that are currently active and calls the callback for them. - * - * @hw: the hardware struct of which the interfaces should be iterated over - * @iterator: the iterator function to call, cannot sleep - * @data: first argument of the iterator function - */ -void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, - void (*iterator)(void *data, u8 *mac, - struct ieee80211_vif *vif), - void *data); - -/** - * ieee80211_start_tx_ba_session - Start a tx Block Ack session. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient - * @tid: the TID to BA on. - * @return: success if addBA request was sent, failure otherwise - * - * Although mac80211/low level driver/user space application can estimate - * the need to start aggregation on a certain RA/TID, the session level - * will be managed by the mac80211. - */ -int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid); - -/** - * ieee80211_start_tx_ba_cb - low level driver ready to aggregate. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient. - * @tid: the TID to BA on. - * - * This function must be called by low level driver once it has - * finished with preparations for the BA session. - */ -void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid); - -/** - * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient. - * @tid: the TID to BA on. - * - * This function must be called by low level driver once it has - * finished with preparations for the BA session. - * This version of the function is irq safe. - */ -void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra, - u16 tid); - -/** - * ieee80211_stop_tx_ba_session - Stop a Block Ack session. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient - * @tid: the TID to stop BA. - * @initiator: if indicates initiator DELBA frame will be sent. - * @return: error if no sta with matching da found, success otherwise - * - * Although mac80211/low level driver/user space application can estimate - * the need to stop aggregation on a certain RA/TID, the session level - * will be managed by the mac80211. - */ -int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, - u8 *ra, u16 tid, - enum ieee80211_back_parties initiator); - -/** - * ieee80211_stop_tx_ba_cb - low level driver ready to stop aggregate. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient. - * @tid: the desired TID to BA on. - * - * This function must be called by low level driver once it has - * finished with preparations for the BA session tear down. - */ -void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid); - -/** - * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate. - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @ra: receiver address of the BA session recipient. - * @tid: the desired TID to BA on. - * - * This function must be called by low level driver once it has - * finished with preparations for the BA session tear down. - * This version of the function is irq safe. - */ -void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra, - u16 tid); - -#endif /* MAC80211_H */ diff --git a/package/mac80211/src/include/net/wireless.h b/package/mac80211/src/include/net/wireless.h deleted file mode 100644 index c7f805ee55..0000000000 --- a/package/mac80211/src/include/net/wireless.h +++ /dev/null @@ -1,307 +0,0 @@ -#ifndef __NET_WIRELESS_H -#define __NET_WIRELESS_H - -/* - * 802.11 device management - * - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - */ - -#include <linux/netdevice.h> -#include <linux/debugfs.h> -#include <linux/list.h> -#include <net/cfg80211.h> - -/** - * enum ieee80211_band - supported frequency bands - * - * The bands are assigned this way because the supported - * bitrates differ in these bands. - * - * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band - * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7) - */ -enum ieee80211_band { - IEEE80211_BAND_2GHZ, - IEEE80211_BAND_5GHZ, - - /* keep last */ - IEEE80211_NUM_BANDS -}; - -/** - * enum ieee80211_channel_flags - channel flags - * - * Channel flags set by the regulatory control code. - * - * @IEEE80211_CHAN_DISABLED: This channel is disabled. - * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted - * on this channel. - * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel. - * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel. - */ -enum ieee80211_channel_flags { - IEEE80211_CHAN_DISABLED = 1<<0, - IEEE80211_CHAN_PASSIVE_SCAN = 1<<1, - IEEE80211_CHAN_NO_IBSS = 1<<2, - IEEE80211_CHAN_RADAR = 1<<3, -}; - -/** - * struct ieee80211_channel - channel definition - * - * This structure describes a single channel for use - * with cfg80211. - * - * @center_freq: center frequency in MHz - * @hw_value: hardware-specific value for the channel - * @flags: channel flags from &enum ieee80211_channel_flags. - * @orig_flags: channel flags at registration time, used by regulatory - * code to support devices with additional restrictions - * @band: band this channel belongs to. - * @max_antenna_gain: maximum antenna gain in dBi - * @max_power: maximum transmission power (in dBm) - * @orig_mag: internal use - * @orig_mpwr: internal use - */ -struct ieee80211_channel { - enum ieee80211_band band; - u16 center_freq; - u16 hw_value; - u32 flags; - int max_antenna_gain; - int max_power; - u32 orig_flags; - int orig_mag, orig_mpwr; -}; - -/** - * enum ieee80211_rate_flags - rate flags - * - * Hardware/specification flags for rates. These are structured - * in a way that allows using the same bitrate structure for - * different bands/PHY modes. - * - * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short - * preamble on this bitrate; only relevant in 2.4GHz band and - * with CCK rates. - * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate - * when used with 802.11a (on the 5 GHz band); filled by the - * core code when registering the wiphy. - * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate - * when used with 802.11b (on the 2.4 GHz band); filled by the - * core code when registering the wiphy. - * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate - * when used with 802.11g (on the 2.4 GHz band); filled by the - * core code when registering the wiphy. - * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode. - */ -enum ieee80211_rate_flags { - IEEE80211_RATE_SHORT_PREAMBLE = 1<<0, - IEEE80211_RATE_MANDATORY_A = 1<<1, - IEEE80211_RATE_MANDATORY_B = 1<<2, - IEEE80211_RATE_MANDATORY_G = 1<<3, - IEEE80211_RATE_ERP_G = 1<<4, -}; - -/** - * struct ieee80211_rate - bitrate definition - * - * This structure describes a bitrate that an 802.11 PHY can - * operate with. The two values @hw_value and @hw_value_short - * are only for driver use when pointers to this structure are - * passed around. - * - * @flags: rate-specific flags - * @bitrate: bitrate in units of 100 Kbps - * @hw_value: driver/hardware value for this rate - * @hw_value_short: driver/hardware value for this rate when - * short preamble is used - */ -struct ieee80211_rate { - u32 flags; - u16 bitrate; - u16 hw_value, hw_value_short; -}; - -/** - * struct ieee80211_ht_info - describing STA's HT capabilities - * - * This structure describes most essential parameters needed - * to describe 802.11n HT capabilities for an STA. - * - * @ht_supported: is HT supported by STA, 0: no, 1: yes - * @cap: HT capabilities map as described in 802.11n spec - * @ampdu_factor: Maximum A-MPDU length factor - * @ampdu_density: Minimum A-MPDU spacing - * @supp_mcs_set: Supported MCS set as described in 802.11n spec - */ -struct ieee80211_ht_info { - u16 cap; /* use IEEE80211_HT_CAP_ */ - u8 ht_supported; - u8 ampdu_factor; - u8 ampdu_density; - u8 supp_mcs_set[16]; -}; - -/** - * struct ieee80211_supported_band - frequency band definition - * - * This structure describes a frequency band a wiphy - * is able to operate in. - * - * @channels: Array of channels the hardware can operate in - * in this band. - * @band: the band this structure represents - * @n_channels: Number of channels in @channels - * @bitrates: Array of bitrates the hardware can operate with - * in this band. Must be sorted to give a valid "supported - * rates" IE, i.e. CCK rates first, then OFDM. - * @n_bitrates: Number of bitrates in @bitrates - */ -struct ieee80211_supported_band { - struct ieee80211_channel *channels; - struct ieee80211_rate *bitrates; - enum ieee80211_band band; - int n_channels; - int n_bitrates; - struct ieee80211_ht_info ht_info; -}; - -/** - * struct wiphy - wireless hardware description - * @idx: the wiphy index assigned to this item - * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name> - */ -struct wiphy { - /* assign these fields before you register the wiphy */ - - /* permanent MAC address */ - u8 perm_addr[ETH_ALEN]; - - /* If multiple wiphys are registered and you're handed e.g. - * a regular netdev with assigned ieee80211_ptr, you won't - * know whether it points to a wiphy your driver has registered - * or not. Assign this to something global to your driver to - * help determine whether you own this wiphy or not. */ - void *privid; - - struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS]; - - /* fields below are read-only, assigned by cfg80211 */ - - /* the item in /sys/class/ieee80211/ points to this, - * you need use set_wiphy_dev() (see below) */ - struct device dev; - - /* dir in debugfs: ieee80211/<wiphyname> */ - struct dentry *debugfsdir; - - char priv[0] __attribute__((__aligned__(NETDEV_ALIGN))); -}; - -/** struct wireless_dev - wireless per-netdev state - * - * This structure must be allocated by the driver/stack - * that uses the ieee80211_ptr field in struct net_device - * (this is intentional so it can be allocated along with - * the netdev.) - * - * @wiphy: pointer to hardware description - */ -struct wireless_dev { - struct wiphy *wiphy; - - /* private to the generic wireless code */ - struct list_head list; - struct net_device *netdev; -}; - -/** - * wiphy_priv - return priv from wiphy - */ -static inline void *wiphy_priv(struct wiphy *wiphy) -{ - BUG_ON(!wiphy); - return &wiphy->priv; -} - -/** - * set_wiphy_dev - set device pointer for wiphy - */ -static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev) -{ - wiphy->dev.parent = dev; -} - -/** - * wiphy_dev - get wiphy dev pointer - */ -static inline struct device *wiphy_dev(struct wiphy *wiphy) -{ - return wiphy->dev.parent; -} - -/** - * wiphy_name - get wiphy name - */ -static inline char *wiphy_name(struct wiphy *wiphy) -{ - return wiphy->dev.bus_id; -} - -/** - * wdev_priv - return wiphy priv from wireless_dev - */ -static inline void *wdev_priv(struct wireless_dev *wdev) -{ - BUG_ON(!wdev); - return wiphy_priv(wdev->wiphy); -} - -/** - * wiphy_new - create a new wiphy for use with cfg80211 - * - * create a new wiphy and associate the given operations with it. - * @sizeof_priv bytes are allocated for private use. - * - * the returned pointer must be assigned to each netdev's - * ieee80211_ptr for proper operation. - */ -struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv); - -/** - * wiphy_register - register a wiphy with cfg80211 - * - * register the given wiphy - * - * Returns a non-negative wiphy index or a negative error code. - */ -extern int wiphy_register(struct wiphy *wiphy); - -/** - * wiphy_unregister - deregister a wiphy from cfg80211 - * - * unregister a device with the given priv pointer. - * After this call, no more requests can be made with this priv - * pointer, but the call may sleep to wait for an outstanding - * request that is being handled. - */ -extern void wiphy_unregister(struct wiphy *wiphy); - -/** - * wiphy_free - free wiphy - */ -extern void wiphy_free(struct wiphy *wiphy); - -/** - * ieee80211_channel_to_frequency - convert channel number to frequency - */ -extern int ieee80211_channel_to_frequency(int chan); - -/** - * ieee80211_frequency_to_channel - convert frequency to channel number - */ -extern int ieee80211_frequency_to_channel(int freq); - -#endif /* __NET_WIRELESS_H */ diff --git a/package/mac80211/src/net/mac80211/Kconfig b/package/mac80211/src/net/mac80211/Kconfig deleted file mode 100644 index 45c7c0c387..0000000000 --- a/package/mac80211/src/net/mac80211/Kconfig +++ /dev/null @@ -1,168 +0,0 @@ -config MAC80211 - tristate "Generic IEEE 802.11 Networking Stack (mac80211)" - select CRYPTO - select CRYPTO_ECB - select CRYPTO_ARC4 - select CRYPTO_AES - select CRC32 - select WIRELESS_EXT - select CFG80211 - select NET_SCH_FIFO - ---help--- - This option enables the hardware independent IEEE 802.11 - networking stack. - -menu "Rate control algorithm selection" - depends on MAC80211 != n - -choice - prompt "Default rate control algorithm" - default MAC80211_RC_DEFAULT_PID - ---help--- - This option selects the default rate control algorithm - mac80211 will use. Note that this default can still be - overriden through the ieee80211_default_rc_algo module - parameter if different algorithms are available. - -config MAC80211_RC_DEFAULT_PID - bool "PID controller based rate control algorithm" - select MAC80211_RC_PID - ---help--- - Select the PID controller based rate control as the - default rate control algorithm. You should choose - this unless you know what you are doing. - -config MAC80211_RC_DEFAULT_SIMPLE - bool "Simple rate control algorithm" - select MAC80211_RC_SIMPLE - ---help--- - Select the simple rate control as the default rate - control algorithm. Note that this is a non-responsive, - dumb algorithm. You should choose the PID rate control - instead. - -config MAC80211_RC_DEFAULT_NONE - bool "No default algorithm" - depends on EMBEDDED - help - Selecting this option will select no default algorithm - and allow you to not build any. Do not choose this - option unless you know your driver comes with another - suitable algorithm. -endchoice - -comment "Selecting 'y' for an algorithm will" -comment "build the algorithm into mac80211." - -config MAC80211_RC_DEFAULT - string - default "pid" if MAC80211_RC_DEFAULT_PID - default "simple" if MAC80211_RC_DEFAULT_SIMPLE - default "" - -config MAC80211_RC_PID - tristate "PID controller based rate control algorithm" - ---help--- - This option enables a TX rate control algorithm for - mac80211 that uses a PID controller to select the TX - rate. - - Say Y or M unless you're sure you want to use a - different rate control algorithm. - -config MAC80211_RC_SIMPLE - tristate "Simple rate control algorithm (DEPRECATED)" - ---help--- - This option enables a very simple, non-responsive TX - rate control algorithm. This algorithm is deprecated - and will be removed from the kernel in the near future. - It has been replaced by the PID algorithm. - - Say N unless you know what you are doing. -endmenu - -config MAC80211_LEDS - bool "Enable LED triggers" - depends on MAC80211 && LEDS_TRIGGERS - ---help--- - This option enables a few LED triggers for different - packet receive/transmit events. - -config MAC80211_DEBUGFS - bool "Export mac80211 internals in DebugFS" - depends on MAC80211 && DEBUG_FS - ---help--- - Select this to see extensive information about - the internal state of mac80211 in debugfs. - - Say N unless you know you need this. - -config MAC80211_DEBUG_PACKET_ALIGNMENT - bool "Enable packet alignment debugging" - depends on MAC80211 - help - This option is recommended for driver authors and strongly - discouraged for everybody else, it will trigger a warning - when a driver hands mac80211 a buffer that is aligned in - a way that will cause problems with the IP stack on some - architectures. - - Say N unless you're writing a mac80211 based driver. - -config MAC80211_DEBUG - bool "Enable debugging output" - depends on MAC80211 - ---help--- - This option will enable debug tracing output for the - ieee80211 network stack. - - If you are not trying to debug or develop the ieee80211 - subsystem, you most likely want to say N here. - -config MAC80211_HT_DEBUG - bool "Enable HT debugging output" - depends on MAC80211_DEBUG - ---help--- - This option enables 802.11n High Throughput features - debug tracing output. - - If you are not trying to debug of develop the ieee80211 - subsystem, you most likely want to say N here. - -config MAC80211_VERBOSE_DEBUG - bool "Verbose debugging output" - depends on MAC80211_DEBUG - -config MAC80211_LOWTX_FRAME_DUMP - bool "Debug frame dumping" - depends on MAC80211_DEBUG - ---help--- - Selecting this option will cause the stack to - print a message for each frame that is handed - to the lowlevel driver for transmission. This - message includes all MAC addresses and the - frame control field. - - If unsure, say N and insert the debugging code - you require into the driver you are debugging. - -config TKIP_DEBUG - bool "TKIP debugging" - depends on MAC80211_DEBUG - -config MAC80211_DEBUG_COUNTERS - bool "Extra statistics for TX/RX debugging" - depends on MAC80211_DEBUG - -config MAC80211_IBSS_DEBUG - bool "Support for IBSS testing" - depends on MAC80211_DEBUG - ---help--- - Say Y here if you intend to debug the IBSS code. - -config MAC80211_VERBOSE_PS_DEBUG - bool "Verbose powersave mode debugging" - depends on MAC80211_DEBUG - ---help--- - Say Y here to print out verbose powersave - mode debug messages. diff --git a/package/mac80211/src/net/mac80211/Makefile b/package/mac80211/src/net/mac80211/Makefile deleted file mode 100644 index 9d7a19581a..0000000000 --- a/package/mac80211/src/net/mac80211/Makefile +++ /dev/null @@ -1,47 +0,0 @@ -obj-$(CONFIG_MAC80211) += mac80211.o - -# objects for PID algorithm -rc80211_pid-y := rc80211_pid_algo.o -rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) += rc80211_pid_debugfs.o - -# build helper for PID algorithm -rc-pid-y := $(rc80211_pid-y) -rc-pid-m := rc80211_pid.o - -# mac80211 objects -mac80211-y := \ - ieee80211.o \ - ieee80211_ioctl.o \ - sta_info.o \ - wep.o \ - wpa.o \ - ieee80211_sta.o \ - ieee80211_iface.o \ - ieee80211_rate.o \ - michael.o \ - tkip.o \ - aes_ccm.o \ - cfg.o \ - rx.o \ - tx.o \ - key.o \ - util.o \ - event.o - -mac80211-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o -mac80211-$(CONFIG_NET_SCHED) += wme.o -mac80211-$(CONFIG_MAC80211_DEBUGFS) += \ - debugfs.o \ - debugfs_sta.o \ - debugfs_netdev.o \ - debugfs_key.o - - -# Build rate control algorithm(s) -CFLAGS_rc80211_simple.o += -DRC80211_SIMPLE_COMPILE -CFLAGS_rc80211_pid_algo.o += -DRC80211_PID_COMPILE -mac80211-$(CONFIG_MAC80211_RC_SIMPLE) += rc80211_simple.o -mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc-pid-$(CONFIG_MAC80211_RC_PID)) - -# Modular rate algorithms are assigned to mac80211-m - make separate modules -obj-m += $(mac80211-m) diff --git a/package/mac80211/src/net/mac80211/aes_ccm.c b/package/mac80211/src/net/mac80211/aes_ccm.c deleted file mode 100644 index e62fe55944..0000000000 --- a/package/mac80211/src/net/mac80211/aes_ccm.c +++ /dev/null @@ -1,155 +0,0 @@ -/* - * Copyright 2003-2004, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/crypto.h> -#include <linux/err.h> - -#include <net/mac80211.h> -#include "ieee80211_key.h" -#include "aes_ccm.h" - - -static void ieee80211_aes_encrypt(struct crypto_cipher *tfm, - const u8 pt[16], u8 ct[16]) -{ - crypto_cipher_encrypt_one(tfm, ct, pt); -} - - -static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad, - u8 *b, u8 *s_0, u8 *a) -{ - int i; - - ieee80211_aes_encrypt(tfm, b_0, b); - - /* Extra Authenticate-only data (always two AES blocks) */ - for (i = 0; i < AES_BLOCK_LEN; i++) - aad[i] ^= b[i]; - ieee80211_aes_encrypt(tfm, aad, b); - - aad += AES_BLOCK_LEN; - - for (i = 0; i < AES_BLOCK_LEN; i++) - aad[i] ^= b[i]; - ieee80211_aes_encrypt(tfm, aad, a); - - /* Mask out bits from auth-only-b_0 */ - b_0[0] &= 0x07; - - /* S_0 is used to encrypt T (= MIC) */ - b_0[14] = 0; - b_0[15] = 0; - ieee80211_aes_encrypt(tfm, b_0, s_0); -} - - -void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch, - u8 *b_0, u8 *aad, u8 *data, size_t data_len, - u8 *cdata, u8 *mic) -{ - int i, j, last_len, num_blocks; - u8 *pos, *cpos, *b, *s_0, *e; - - b = scratch; - s_0 = scratch + AES_BLOCK_LEN; - e = scratch + 2 * AES_BLOCK_LEN; - - num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last_len = data_len % AES_BLOCK_LEN; - aes_ccm_prepare(tfm, b_0, aad, b, s_0, b); - - /* Process payload blocks */ - pos = data; - cpos = cdata; - for (j = 1; j <= num_blocks; j++) { - int blen = (j == num_blocks && last_len) ? - last_len : AES_BLOCK_LEN; - - /* Authentication followed by encryption */ - for (i = 0; i < blen; i++) - b[i] ^= pos[i]; - ieee80211_aes_encrypt(tfm, b, b); - - b_0[14] = (j >> 8) & 0xff; - b_0[15] = j & 0xff; - ieee80211_aes_encrypt(tfm, b_0, e); - for (i = 0; i < blen; i++) - *cpos++ = *pos++ ^ e[i]; - } - - for (i = 0; i < CCMP_MIC_LEN; i++) - mic[i] = b[i] ^ s_0[i]; -} - - -int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch, - u8 *b_0, u8 *aad, u8 *cdata, size_t data_len, - u8 *mic, u8 *data) -{ - int i, j, last_len, num_blocks; - u8 *pos, *cpos, *b, *s_0, *a; - - b = scratch; - s_0 = scratch + AES_BLOCK_LEN; - a = scratch + 2 * AES_BLOCK_LEN; - - num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN); - last_len = data_len % AES_BLOCK_LEN; - aes_ccm_prepare(tfm, b_0, aad, b, s_0, a); - - /* Process payload blocks */ - cpos = cdata; - pos = data; - for (j = 1; j <= num_blocks; j++) { - int blen = (j == num_blocks && last_len) ? - last_len : AES_BLOCK_LEN; - - /* Decryption followed by authentication */ - b_0[14] = (j >> 8) & 0xff; - b_0[15] = j & 0xff; - ieee80211_aes_encrypt(tfm, b_0, b); - for (i = 0; i < blen; i++) { - *pos = *cpos++ ^ b[i]; - a[i] ^= *pos++; - } - - ieee80211_aes_encrypt(tfm, a, a); - } - - for (i = 0; i < CCMP_MIC_LEN; i++) { - if ((mic[i] ^ s_0[i]) != a[i]) - return -1; - } - - return 0; -} - - -struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]) -{ - struct crypto_cipher *tfm; - - tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(tfm)) - return NULL; - - crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN); - - return tfm; -} - - -void ieee80211_aes_key_free(struct crypto_cipher *tfm) -{ - if (tfm) - crypto_free_cipher(tfm); -} diff --git a/package/mac80211/src/net/mac80211/aes_ccm.h b/package/mac80211/src/net/mac80211/aes_ccm.h deleted file mode 100644 index 885f19030b..0000000000 --- a/package/mac80211/src/net/mac80211/aes_ccm.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright 2003-2004, Instant802 Networks, Inc. - * Copyright 2006, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef AES_CCM_H -#define AES_CCM_H - -#include <linux/crypto.h> - -#define AES_BLOCK_LEN 16 - -struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]); -void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch, - u8 *b_0, u8 *aad, u8 *data, size_t data_len, - u8 *cdata, u8 *mic); -int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch, - u8 *b_0, u8 *aad, u8 *cdata, size_t data_len, - u8 *mic, u8 *data); -void ieee80211_aes_key_free(struct crypto_cipher *tfm); - -#endif /* AES_CCM_H */ diff --git a/package/mac80211/src/net/mac80211/cfg.c b/package/mac80211/src/net/mac80211/cfg.c deleted file mode 100644 index a083cc7885..0000000000 --- a/package/mac80211/src/net/mac80211/cfg.c +++ /dev/null @@ -1,668 +0,0 @@ -/* - * mac80211 configuration hooks for cfg80211 - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This file is GPLv2 as found in COPYING. - */ - -#include <linux/ieee80211.h> -#include <linux/nl80211.h> -#include <linux/rtnetlink.h> -#include <net/net_namespace.h> -#include <linux/rcupdate.h> -#include <net/cfg80211.h> -#include "ieee80211_i.h" -#include "cfg.h" -#include "ieee80211_rate.h" - -static enum ieee80211_if_types -nl80211_type_to_mac80211_type(enum nl80211_iftype type) -{ - switch (type) { - case NL80211_IFTYPE_UNSPECIFIED: - return IEEE80211_IF_TYPE_STA; - case NL80211_IFTYPE_ADHOC: - return IEEE80211_IF_TYPE_IBSS; - case NL80211_IFTYPE_STATION: - return IEEE80211_IF_TYPE_STA; - case NL80211_IFTYPE_MONITOR: - return IEEE80211_IF_TYPE_MNTR; - default: - return IEEE80211_IF_TYPE_INVALID; - } -} - -static int ieee80211_add_iface(struct wiphy *wiphy, char *name, - enum nl80211_iftype type, u32 *flags) -{ - struct ieee80211_local *local = wiphy_priv(wiphy); - enum ieee80211_if_types itype; - struct net_device *dev; - struct ieee80211_sub_if_data *sdata; - int err; - - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; - - itype = nl80211_type_to_mac80211_type(type); - if (itype == IEEE80211_IF_TYPE_INVALID) - return -EINVAL; - - err = ieee80211_if_add(local->mdev, name, &dev, itype); - if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags) - return err; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - sdata->u.mntr_flags = *flags; - return 0; -} - -static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) -{ - struct ieee80211_local *local = wiphy_priv(wiphy); - struct net_device *dev; - char *name; - - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; - - /* we're under RTNL */ - dev = __dev_get_by_index(&init_net, ifindex); - if (!dev) - return 0; - - name = dev->name; - - return ieee80211_if_remove(local->mdev, name, -1); -} - -static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, - enum nl80211_iftype type, u32 *flags) -{ - struct ieee80211_local *local = wiphy_priv(wiphy); - struct net_device *dev; - enum ieee80211_if_types itype; - struct ieee80211_sub_if_data *sdata; - - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) - return -ENODEV; - - /* we're under RTNL */ - dev = __dev_get_by_index(&init_net, ifindex); - if (!dev) - return -ENODEV; - - if (netif_running(dev)) - return -EBUSY; - - itype = nl80211_type_to_mac80211_type(type); - if (itype == IEEE80211_IF_TYPE_INVALID) - return -EINVAL; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - return -EOPNOTSUPP; - - ieee80211_if_reinit(dev); - ieee80211_if_set_type(dev, itype); - - if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags) - return 0; - - sdata->u.mntr_flags = *flags; - return 0; -} - -static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, u8 *mac_addr, - struct key_params *params) -{ - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta = NULL; - enum ieee80211_key_alg alg; - int ret; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (params->cipher) { - case WLAN_CIPHER_SUITE_WEP40: - case WLAN_CIPHER_SUITE_WEP104: - alg = ALG_WEP; - break; - case WLAN_CIPHER_SUITE_TKIP: - alg = ALG_TKIP; - break; - case WLAN_CIPHER_SUITE_CCMP: - alg = ALG_CCMP; - break; - default: - return -EINVAL; - } - - if (mac_addr) { - sta = sta_info_get(sdata->local, mac_addr); - if (!sta) - return -ENOENT; - } - - ret = 0; - if (!ieee80211_key_alloc(sdata, sta, alg, key_idx, - params->key_len, params->key)) - ret = -ENOMEM; - - if (sta) - sta_info_put(sta); - - return ret; -} - -static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, u8 *mac_addr) -{ - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - int ret; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (mac_addr) { - sta = sta_info_get(sdata->local, mac_addr); - if (!sta) - return -ENOENT; - - ret = 0; - if (sta->key) - ieee80211_key_free(sta->key); - else - ret = -ENOENT; - - sta_info_put(sta); - return ret; - } - - if (!sdata->keys[key_idx]) - return -ENOENT; - - ieee80211_key_free(sdata->keys[key_idx]); - - return 0; -} - -static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, - u8 key_idx, u8 *mac_addr, void *cookie, - void (*callback)(void *cookie, - struct key_params *params)) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta = NULL; - u8 seq[6] = {0}; - struct key_params params; - struct ieee80211_key *key; - u32 iv32; - u16 iv16; - int err = -ENOENT; - - if (mac_addr) { - sta = sta_info_get(sdata->local, mac_addr); - if (!sta) - goto out; - - key = sta->key; - } else - key = sdata->keys[key_idx]; - - if (!key) - goto out; - - memset(¶ms, 0, sizeof(params)); - - switch (key->conf.alg) { - case ALG_TKIP: - params.cipher = WLAN_CIPHER_SUITE_TKIP; - - iv32 = key->u.tkip.iv32; - iv16 = key->u.tkip.iv16; - - if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && - sdata->local->ops->get_tkip_seq) - sdata->local->ops->get_tkip_seq( - local_to_hw(sdata->local), - key->conf.hw_key_idx, - &iv32, &iv16); - - seq[0] = iv16 & 0xff; - seq[1] = (iv16 >> 8) & 0xff; - seq[2] = iv32 & 0xff; - seq[3] = (iv32 >> 8) & 0xff; - seq[4] = (iv32 >> 16) & 0xff; - seq[5] = (iv32 >> 24) & 0xff; - params.seq = seq; - params.seq_len = 6; - break; - case ALG_CCMP: - params.cipher = WLAN_CIPHER_SUITE_CCMP; - seq[0] = key->u.ccmp.tx_pn[5]; - seq[1] = key->u.ccmp.tx_pn[4]; - seq[2] = key->u.ccmp.tx_pn[3]; - seq[3] = key->u.ccmp.tx_pn[2]; - seq[4] = key->u.ccmp.tx_pn[1]; - seq[5] = key->u.ccmp.tx_pn[0]; - params.seq = seq; - params.seq_len = 6; - break; - case ALG_WEP: - if (key->conf.keylen == 5) - params.cipher = WLAN_CIPHER_SUITE_WEP40; - else - params.cipher = WLAN_CIPHER_SUITE_WEP104; - break; - } - - params.key = key->conf.key; - params.key_len = key->conf.keylen; - - callback(cookie, ¶ms); - err = 0; - - out: - if (sta) - sta_info_put(sta); - return err; -} - -static int ieee80211_config_default_key(struct wiphy *wiphy, - struct net_device *dev, - u8 key_idx) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ieee80211_set_default_key(sdata, key_idx); - - return 0; -} - -static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_stats *stats) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - - sta = sta_info_get(local, mac); - if (!sta) - return -ENOENT; - - /* XXX: verify sta->dev == dev */ - - stats->filled = STATION_STAT_INACTIVE_TIME | - STATION_STAT_RX_BYTES | - STATION_STAT_TX_BYTES; - - stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); - stats->rx_bytes = sta->rx_bytes; - stats->tx_bytes = sta->tx_bytes; - - sta_info_put(sta); - - return 0; -} - -/* - * This handles both adding a beacon and setting new beacon info - */ -static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, - struct beacon_parameters *params) -{ - struct beacon_data *new, *old; - int new_head_len, new_tail_len; - int size; - int err = -EINVAL; - - old = sdata->u.ap.beacon; - - /* head must not be zero-length */ - if (params->head && !params->head_len) - return -EINVAL; - - /* - * This is a kludge. beacon interval should really be part - * of the beacon information. - */ - if (params->interval) { - sdata->local->hw.conf.beacon_int = params->interval; - if (ieee80211_hw_config(sdata->local)) - return -EINVAL; - /* - * We updated some parameter so if below bails out - * it's not an error. - */ - err = 0; - } - - /* Need to have a beacon head if we don't have one yet */ - if (!params->head && !old) - return err; - - /* sorry, no way to start beaconing without dtim period */ - if (!params->dtim_period && !old) - return err; - - /* new or old head? */ - if (params->head) - new_head_len = params->head_len; - else - new_head_len = old->head_len; - - /* new or old tail? */ - if (params->tail || !old) - /* params->tail_len will be zero for !params->tail */ - new_tail_len = params->tail_len; - else - new_tail_len = old->tail_len; - - size = sizeof(*new) + new_head_len + new_tail_len; - - new = kzalloc(size, GFP_KERNEL); - if (!new) - return -ENOMEM; - - /* start filling the new info now */ - - /* new or old dtim period? */ - if (params->dtim_period) - new->dtim_period = params->dtim_period; - else - new->dtim_period = old->dtim_period; - - /* - * pointers go into the block we allocated, - * memory is | beacon_data | head | tail | - */ - new->head = ((u8 *) new) + sizeof(*new); - new->tail = new->head + new_head_len; - new->head_len = new_head_len; - new->tail_len = new_tail_len; - - /* copy in head */ - if (params->head) - memcpy(new->head, params->head, new_head_len); - else - memcpy(new->head, old->head, new_head_len); - - /* copy in optional tail */ - if (params->tail) - memcpy(new->tail, params->tail, new_tail_len); - else - if (old) - memcpy(new->tail, old->tail, new_tail_len); - - rcu_assign_pointer(sdata->u.ap.beacon, new); - - synchronize_rcu(); - - kfree(old); - - return ieee80211_if_config_beacon(sdata->dev); -} - -static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *params) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct beacon_data *old; - - if (sdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - - old = sdata->u.ap.beacon; - - if (old) - return -EALREADY; - - return ieee80211_config_beacon(sdata, params); -} - -static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *params) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct beacon_data *old; - - if (sdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - - old = sdata->u.ap.beacon; - - if (!old) - return -ENOENT; - - return ieee80211_config_beacon(sdata, params); -} - -static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct beacon_data *old; - - if (sdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - - old = sdata->u.ap.beacon; - - if (!old) - return -ENOENT; - - rcu_assign_pointer(sdata->u.ap.beacon, NULL); - synchronize_rcu(); - kfree(old); - - return ieee80211_if_config_beacon(dev); -} - -/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ -struct iapp_layer2_update { - u8 da[ETH_ALEN]; /* broadcast */ - u8 sa[ETH_ALEN]; /* STA addr */ - __be16 len; /* 6 */ - u8 dsap; /* 0 */ - u8 ssap; /* 0 */ - u8 control; - u8 xid_info[3]; -} __attribute__ ((packed)); - -static void ieee80211_send_layer2_update(struct sta_info *sta) -{ - struct iapp_layer2_update *msg; - struct sk_buff *skb; - - /* Send Level 2 Update Frame to update forwarding tables in layer 2 - * bridge devices */ - - skb = dev_alloc_skb(sizeof(*msg)); - if (!skb) - return; - msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); - - /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) - * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ - - memset(msg->da, 0xff, ETH_ALEN); - memcpy(msg->sa, sta->addr, ETH_ALEN); - msg->len = htons(6); - msg->dsap = 0; - msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ - msg->control = 0xaf; /* XID response lsb.1111F101. - * F=0 (no poll command; unsolicited frame) */ - msg->xid_info[0] = 0x81; /* XID format identifier */ - msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ - msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ - - skb->dev = sta->dev; - skb->protocol = eth_type_trans(skb, sta->dev); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - -static void sta_apply_parameters(struct ieee80211_local *local, - struct sta_info *sta, - struct station_parameters *params) -{ - u32 rates; - int i, j; - struct ieee80211_supported_band *sband; - - if (params->station_flags & STATION_FLAG_CHANGED) { - sta->flags &= ~WLAN_STA_AUTHORIZED; - if (params->station_flags & STATION_FLAG_AUTHORIZED) - sta->flags |= WLAN_STA_AUTHORIZED; - - sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; - if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE) - sta->flags |= WLAN_STA_SHORT_PREAMBLE; - - sta->flags &= ~WLAN_STA_WME; - if (params->station_flags & STATION_FLAG_WME) - sta->flags |= WLAN_STA_WME; - } - - if (params->aid) { - sta->aid = params->aid; - if (sta->aid > IEEE80211_MAX_AID) - sta->aid = 0; /* XXX: should this be an error? */ - } - - if (params->listen_interval >= 0) - sta->listen_interval = params->listen_interval; - - if (params->supported_rates) { - rates = 0; - sband = local->hw.wiphy->bands[local->oper_channel->band]; - - for (i = 0; i < params->supported_rates_len; i++) { - int rate = (params->supported_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) - rates |= BIT(j); - } - } - sta->supp_rates[local->oper_channel->band] = rates; - } -} - -static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, - u8 *mac, struct station_parameters *params) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - - /* Prevent a race with changing the rate control algorithm */ - if (!netif_running(dev)) - return -ENETDOWN; - - /* XXX: get sta belonging to dev */ - sta = sta_info_get(local, mac); - if (sta) { - sta_info_put(sta); - return -EEXIST; - } - - if (params->vlan) { - sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); - - if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN || - sdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - } else - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - sta = sta_info_add(local, dev, mac, GFP_KERNEL); - if (!sta) - return -ENOMEM; - - sta->dev = sdata->dev; - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN || - sdata->vif.type == IEEE80211_IF_TYPE_AP) - ieee80211_send_layer2_update(sta); - - sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; - - sta_apply_parameters(local, sta, params); - - rate_control_rate_init(sta, local); - - sta_info_put(sta); - - return 0; -} - -static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, - u8 *mac) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - - if (mac) { - /* XXX: get sta belonging to dev */ - sta = sta_info_get(local, mac); - if (!sta) - return -ENOENT; - - sta_info_free(sta); - sta_info_put(sta); - } else - sta_info_flush(local, dev); - - return 0; -} - -static int ieee80211_change_station(struct wiphy *wiphy, - struct net_device *dev, - u8 *mac, - struct station_parameters *params) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *vlansdata; - - /* XXX: get sta belonging to dev */ - sta = sta_info_get(local, mac); - if (!sta) - return -ENOENT; - - if (params->vlan && params->vlan != sta->dev) { - vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); - - if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN || - vlansdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - - sta->dev = params->vlan; - ieee80211_send_layer2_update(sta); - } - - sta_apply_parameters(local, sta, params); - - sta_info_put(sta); - - return 0; -} - -struct cfg80211_ops mac80211_config_ops = { - .add_virtual_intf = ieee80211_add_iface, - .del_virtual_intf = ieee80211_del_iface, - .change_virtual_intf = ieee80211_change_iface, - .add_key = ieee80211_add_key, - .del_key = ieee80211_del_key, - .get_key = ieee80211_get_key, - .set_default_key = ieee80211_config_default_key, - .add_beacon = ieee80211_add_beacon, - .set_beacon = ieee80211_set_beacon, - .del_beacon = ieee80211_del_beacon, - .add_station = ieee80211_add_station, - .del_station = ieee80211_del_station, - .change_station = ieee80211_change_station, - .get_station = ieee80211_get_station, -}; diff --git a/package/mac80211/src/net/mac80211/cfg.h b/package/mac80211/src/net/mac80211/cfg.h deleted file mode 100644 index 7d7879f5b0..0000000000 --- a/package/mac80211/src/net/mac80211/cfg.h +++ /dev/null @@ -1,9 +0,0 @@ -/* - * mac80211 configuration hooks for cfg80211 - */ -#ifndef __CFG_H -#define __CFG_H - -extern struct cfg80211_ops mac80211_config_ops; - -#endif /* __CFG_H */ diff --git a/package/mac80211/src/net/mac80211/debugfs.c b/package/mac80211/src/net/mac80211/debugfs.c deleted file mode 100644 index 4736c64937..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * mac80211 debugfs for wireless PHYs - * - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * GPLv2 - * - */ - -#include <linux/debugfs.h> -#include <linux/rtnetlink.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "debugfs.h" - -int mac80211_open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \ -static ssize_t name## _read(struct file *file, char __user *userbuf, \ - size_t count, loff_t *ppos) \ -{ \ - struct ieee80211_local *local = file->private_data; \ - char buf[buflen]; \ - int res; \ - \ - res = scnprintf(buf, buflen, fmt "\n", ##value); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ -} \ - \ -static const struct file_operations name## _ops = { \ - .read = name## _read, \ - .open = mac80211_open_file_generic, \ -}; - -#define DEBUGFS_ADD(name) \ - local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \ - local, &name## _ops); - -#define DEBUGFS_DEL(name) \ - debugfs_remove(local->debugfs.name); \ - local->debugfs.name = NULL; - - -DEBUGFS_READONLY_FILE(frequency, 20, "%d", - local->hw.conf.channel->center_freq); -DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d", - local->hw.conf.antenna_sel_tx); -DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d", - local->hw.conf.antenna_sel_rx); -DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d", - local->bridge_packets); -DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d", - local->rts_threshold); -DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d", - local->fragmentation_threshold); -DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d", - local->short_retry_limit); -DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d", - local->long_retry_limit); -DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d", - local->total_ps_buffered); -DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x", - local->wep_iv & 0xffffff); -DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s", - local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>"); - -/* statistics stuff */ - -static inline int rtnl_lock_local(struct ieee80211_local *local) -{ - rtnl_lock(); - if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) { - rtnl_unlock(); - return -ENODEV; - } - return 0; -} - -#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \ - DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value) - -static ssize_t format_devstat_counter(struct ieee80211_local *local, - char __user *userbuf, - size_t count, loff_t *ppos, - int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, - int buflen)) -{ - struct ieee80211_low_level_stats stats; - char buf[20]; - int res; - - if (!local->ops->get_stats) - return -EOPNOTSUPP; - - res = rtnl_lock_local(local); - if (res) - return res; - - res = local->ops->get_stats(local_to_hw(local), &stats); - rtnl_unlock(); - if (!res) - res = printvalue(&stats, buf, sizeof(buf)); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} - -#define DEBUGFS_DEVSTATS_FILE(name) \ -static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ - char *buf, int buflen) \ -{ \ - return scnprintf(buf, buflen, "%u\n", stats->name); \ -} \ -static ssize_t stats_ ##name## _read(struct file *file, \ - char __user *userbuf, \ - size_t count, loff_t *ppos) \ -{ \ - return format_devstat_counter(file->private_data, \ - userbuf, \ - count, \ - ppos, \ - print_devstats_##name); \ -} \ - \ -static const struct file_operations stats_ ##name## _ops = { \ - .read = stats_ ##name## _read, \ - .open = mac80211_open_file_generic, \ -}; - -#define DEBUGFS_STATS_ADD(name) \ - local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\ - local, &stats_ ##name## _ops); - -#define DEBUGFS_STATS_DEL(name) \ - debugfs_remove(local->debugfs.stats.name); \ - local->debugfs.stats.name = NULL; - -DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u", - local->dot11TransmittedFragmentCount); -DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u", - local->dot11MulticastTransmittedFrameCount); -DEBUGFS_STATS_FILE(failed_count, 20, "%u", - local->dot11FailedCount); -DEBUGFS_STATS_FILE(retry_count, 20, "%u", - local->dot11RetryCount); -DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u", - local->dot11MultipleRetryCount); -DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u", - local->dot11FrameDuplicateCount); -DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u", - local->dot11ReceivedFragmentCount); -DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u", - local->dot11MulticastReceivedFrameCount); -DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u", - local->dot11TransmittedFrameCount); -DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u", - local->dot11WEPUndecryptableCount); -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS -DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u", - local->tx_handlers_drop); -DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u", - local->tx_handlers_queued); -DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u", - local->tx_handlers_drop_unencrypted); -DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u", - local->tx_handlers_drop_fragment); -DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u", - local->tx_handlers_drop_wep); -DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u", - local->tx_handlers_drop_not_assoc); -DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u", - local->tx_handlers_drop_unauth_port); -DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u", - local->rx_handlers_drop); -DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u", - local->rx_handlers_queued); -DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u", - local->rx_handlers_drop_nullfunc); -DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u", - local->rx_handlers_drop_defrag); -DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u", - local->rx_handlers_drop_short); -DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u", - local->rx_handlers_drop_passive_scan); -DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u", - local->tx_expand_skb_head); -DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u", - local->tx_expand_skb_head_cloned); -DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u", - local->rx_expand_skb_head); -DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u", - local->rx_expand_skb_head2); -DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u", - local->rx_handlers_fragments); -DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u", - local->tx_status_drop); - -static ssize_t stats_wme_rx_queue_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - char buf[NUM_RX_DATA_QUEUES*15], *p = buf; - int i; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, - "%u\n", local->wme_rx_queue[i]); - - return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); -} - -static const struct file_operations stats_wme_rx_queue_ops = { - .read = stats_wme_rx_queue_read, - .open = mac80211_open_file_generic, -}; - -static ssize_t stats_wme_tx_queue_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct ieee80211_local *local = file->private_data; - char buf[NUM_TX_DATA_QUEUES*15], *p = buf; - int i; - - for (i = 0; i < NUM_TX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, - "%u\n", local->wme_tx_queue[i]); - - return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf); -} - -static const struct file_operations stats_wme_tx_queue_ops = { - .read = stats_wme_tx_queue_read, - .open = mac80211_open_file_generic, -}; -#endif - -DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount); -DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount); -DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount); -DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); - - -void debugfs_hw_add(struct ieee80211_local *local) -{ - struct dentry *phyd = local->hw.wiphy->debugfsdir; - struct dentry *statsd; - - if (!phyd) - return; - - local->debugfs.stations = debugfs_create_dir("stations", phyd); - local->debugfs.keys = debugfs_create_dir("keys", phyd); - - DEBUGFS_ADD(frequency); - DEBUGFS_ADD(antenna_sel_tx); - DEBUGFS_ADD(antenna_sel_rx); - DEBUGFS_ADD(bridge_packets); - DEBUGFS_ADD(rts_threshold); - DEBUGFS_ADD(fragmentation_threshold); - DEBUGFS_ADD(short_retry_limit); - DEBUGFS_ADD(long_retry_limit); - DEBUGFS_ADD(total_ps_buffered); - DEBUGFS_ADD(wep_iv); - - statsd = debugfs_create_dir("statistics", phyd); - local->debugfs.statistics = statsd; - - /* if the dir failed, don't put all the other things into the root! */ - if (!statsd) - return; - - DEBUGFS_STATS_ADD(transmitted_fragment_count); - DEBUGFS_STATS_ADD(multicast_transmitted_frame_count); - DEBUGFS_STATS_ADD(failed_count); - DEBUGFS_STATS_ADD(retry_count); - DEBUGFS_STATS_ADD(multiple_retry_count); - DEBUGFS_STATS_ADD(frame_duplicate_count); - DEBUGFS_STATS_ADD(received_fragment_count); - DEBUGFS_STATS_ADD(multicast_received_frame_count); - DEBUGFS_STATS_ADD(transmitted_frame_count); - DEBUGFS_STATS_ADD(wep_undecryptable_count); -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - DEBUGFS_STATS_ADD(tx_handlers_drop); - DEBUGFS_STATS_ADD(tx_handlers_queued); - DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted); - DEBUGFS_STATS_ADD(tx_handlers_drop_fragment); - DEBUGFS_STATS_ADD(tx_handlers_drop_wep); - DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc); - DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port); - DEBUGFS_STATS_ADD(rx_handlers_drop); - DEBUGFS_STATS_ADD(rx_handlers_queued); - DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc); - DEBUGFS_STATS_ADD(rx_handlers_drop_defrag); - DEBUGFS_STATS_ADD(rx_handlers_drop_short); - DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan); - DEBUGFS_STATS_ADD(tx_expand_skb_head); - DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned); - DEBUGFS_STATS_ADD(rx_expand_skb_head); - DEBUGFS_STATS_ADD(rx_expand_skb_head2); - DEBUGFS_STATS_ADD(rx_handlers_fragments); - DEBUGFS_STATS_ADD(tx_status_drop); - DEBUGFS_STATS_ADD(wme_tx_queue); - DEBUGFS_STATS_ADD(wme_rx_queue); -#endif - DEBUGFS_STATS_ADD(dot11ACKFailureCount); - DEBUGFS_STATS_ADD(dot11RTSFailureCount); - DEBUGFS_STATS_ADD(dot11FCSErrorCount); - DEBUGFS_STATS_ADD(dot11RTSSuccessCount); -} - -void debugfs_hw_del(struct ieee80211_local *local) -{ - DEBUGFS_DEL(frequency); - DEBUGFS_DEL(antenna_sel_tx); - DEBUGFS_DEL(antenna_sel_rx); - DEBUGFS_DEL(bridge_packets); - DEBUGFS_DEL(rts_threshold); - DEBUGFS_DEL(fragmentation_threshold); - DEBUGFS_DEL(short_retry_limit); - DEBUGFS_DEL(long_retry_limit); - DEBUGFS_DEL(total_ps_buffered); - DEBUGFS_DEL(wep_iv); - - DEBUGFS_STATS_DEL(transmitted_fragment_count); - DEBUGFS_STATS_DEL(multicast_transmitted_frame_count); - DEBUGFS_STATS_DEL(failed_count); - DEBUGFS_STATS_DEL(retry_count); - DEBUGFS_STATS_DEL(multiple_retry_count); - DEBUGFS_STATS_DEL(frame_duplicate_count); - DEBUGFS_STATS_DEL(received_fragment_count); - DEBUGFS_STATS_DEL(multicast_received_frame_count); - DEBUGFS_STATS_DEL(transmitted_frame_count); - DEBUGFS_STATS_DEL(wep_undecryptable_count); - DEBUGFS_STATS_DEL(num_scans); -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - DEBUGFS_STATS_DEL(tx_handlers_drop); - DEBUGFS_STATS_DEL(tx_handlers_queued); - DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted); - DEBUGFS_STATS_DEL(tx_handlers_drop_fragment); - DEBUGFS_STATS_DEL(tx_handlers_drop_wep); - DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc); - DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port); - DEBUGFS_STATS_DEL(rx_handlers_drop); - DEBUGFS_STATS_DEL(rx_handlers_queued); - DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc); - DEBUGFS_STATS_DEL(rx_handlers_drop_defrag); - DEBUGFS_STATS_DEL(rx_handlers_drop_short); - DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan); - DEBUGFS_STATS_DEL(tx_expand_skb_head); - DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned); - DEBUGFS_STATS_DEL(rx_expand_skb_head); - DEBUGFS_STATS_DEL(rx_expand_skb_head2); - DEBUGFS_STATS_DEL(rx_handlers_fragments); - DEBUGFS_STATS_DEL(tx_status_drop); - DEBUGFS_STATS_DEL(wme_tx_queue); - DEBUGFS_STATS_DEL(wme_rx_queue); -#endif - DEBUGFS_STATS_DEL(dot11ACKFailureCount); - DEBUGFS_STATS_DEL(dot11RTSFailureCount); - DEBUGFS_STATS_DEL(dot11FCSErrorCount); - DEBUGFS_STATS_DEL(dot11RTSSuccessCount); - - debugfs_remove(local->debugfs.statistics); - local->debugfs.statistics = NULL; - debugfs_remove(local->debugfs.stations); - local->debugfs.stations = NULL; - debugfs_remove(local->debugfs.keys); - local->debugfs.keys = NULL; -} diff --git a/package/mac80211/src/net/mac80211/debugfs.h b/package/mac80211/src/net/mac80211/debugfs.h deleted file mode 100644 index dd2541935c..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs.h +++ /dev/null @@ -1,16 +0,0 @@ -#ifndef __MAC80211_DEBUGFS_H -#define __MAC80211_DEBUGFS_H - -#ifdef CONFIG_MAC80211_DEBUGFS -extern void debugfs_hw_add(struct ieee80211_local *local); -extern void debugfs_hw_del(struct ieee80211_local *local); -extern int mac80211_open_file_generic(struct inode *inode, struct file *file); -#else -static inline void debugfs_hw_add(struct ieee80211_local *local) -{ - return; -} -static inline void debugfs_hw_del(struct ieee80211_local *local) {} -#endif - -#endif /* __MAC80211_DEBUGFS_H */ diff --git a/package/mac80211/src/net/mac80211/debugfs_key.c b/package/mac80211/src/net/mac80211/debugfs_key.c deleted file mode 100644 index c881524c87..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_key.c +++ /dev/null @@ -1,280 +0,0 @@ -/* - * Copyright 2003-2005 Devicescape Software, Inc. - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kobject.h> -#include "ieee80211_i.h" -#include "ieee80211_key.h" -#include "debugfs.h" -#include "debugfs_key.h" - -#define KEY_READ(name, prop, buflen, format_string) \ -static ssize_t key_##name##_read(struct file *file, \ - char __user *userbuf, \ - size_t count, loff_t *ppos) \ -{ \ - char buf[buflen]; \ - struct ieee80211_key *key = file->private_data; \ - int res = scnprintf(buf, buflen, format_string, key->prop); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ -} -#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n") -#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n") - -#define KEY_OPS(name) \ -static const struct file_operations key_ ##name## _ops = { \ - .read = key_##name##_read, \ - .open = mac80211_open_file_generic, \ -} - -#define KEY_FILE(name, format) \ - KEY_READ_##format(name) \ - KEY_OPS(name) - -#define KEY_CONF_READ(name, buflen, format_string) \ - KEY_READ(conf_##name, conf.name, buflen, format_string) -#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n") - -#define KEY_CONF_OPS(name) \ -static const struct file_operations key_ ##name## _ops = { \ - .read = key_conf_##name##_read, \ - .open = mac80211_open_file_generic, \ -} - -#define KEY_CONF_FILE(name, format) \ - KEY_CONF_READ_##format(name) \ - KEY_CONF_OPS(name) - -KEY_CONF_FILE(keylen, D); -KEY_CONF_FILE(keyidx, D); -KEY_CONF_FILE(hw_key_idx, D); -KEY_FILE(flags, X); -KEY_FILE(tx_rx_count, D); -KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n"); -KEY_OPS(ifindex); - -static ssize_t key_algorithm_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - char *alg; - struct ieee80211_key *key = file->private_data; - - switch (key->conf.alg) { - case ALG_WEP: - alg = "WEP\n"; - break; - case ALG_TKIP: - alg = "TKIP\n"; - break; - case ALG_CCMP: - alg = "CCMP\n"; - break; - default: - return 0; - } - return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg)); -} -KEY_OPS(algorithm); - -static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - const u8 *tpn; - char buf[20]; - int len; - struct ieee80211_key *key = file->private_data; - - switch (key->conf.alg) { - case ALG_WEP: - len = scnprintf(buf, sizeof(buf), "\n"); - break; - case ALG_TKIP: - len = scnprintf(buf, sizeof(buf), "%08x %04x\n", - key->u.tkip.iv32, - key->u.tkip.iv16); - break; - case ALG_CCMP: - tpn = key->u.ccmp.tx_pn; - len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n", - tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]); - break; - default: - return 0; - } - return simple_read_from_buffer(userbuf, count, ppos, buf, len); -} -KEY_OPS(tx_spec); - -static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct ieee80211_key *key = file->private_data; - char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf; - int i, len; - const u8 *rpn; - - switch (key->conf.alg) { - case ALG_WEP: - len = scnprintf(buf, sizeof(buf), "\n"); - break; - case ALG_TKIP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, - "%08x %04x\n", - key->u.tkip.iv32_rx[i], - key->u.tkip.iv16_rx[i]); - len = p - buf; - break; - case ALG_CCMP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) { - rpn = key->u.ccmp.rx_pn[i]; - p += scnprintf(p, sizeof(buf)+buf-p, - "%02x%02x%02x%02x%02x%02x\n", - rpn[0], rpn[1], rpn[2], - rpn[3], rpn[4], rpn[5]); - } - len = p - buf; - break; - default: - return 0; - } - return simple_read_from_buffer(userbuf, count, ppos, buf, len); -} -KEY_OPS(rx_spec); - -static ssize_t key_replays_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct ieee80211_key *key = file->private_data; - char buf[20]; - int len; - - if (key->conf.alg != ALG_CCMP) - return 0; - len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays); - return simple_read_from_buffer(userbuf, count, ppos, buf, len); -} -KEY_OPS(replays); - -static ssize_t key_key_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct ieee80211_key *key = file->private_data; - int i, res, bufsize = 2 * key->conf.keylen + 2; - char *buf = kmalloc(bufsize, GFP_KERNEL); - char *p = buf; - - for (i = 0; i < key->conf.keylen; i++) - p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]); - p += scnprintf(p, bufsize+buf-p, "\n"); - res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); - kfree(buf); - return res; -} -KEY_OPS(key); - -#define DEBUGFS_ADD(name) \ - key->debugfs.name = debugfs_create_file(#name, 0400,\ - key->debugfs.dir, key, &key_##name##_ops); - -void ieee80211_debugfs_key_add(struct ieee80211_local *local, - struct ieee80211_key *key) -{ - static int keycount; - char buf[20]; - - if (!local->debugfs.keys) - return; - - sprintf(buf, "%d", keycount); - keycount++; - key->debugfs.dir = debugfs_create_dir(buf, - local->debugfs.keys); - - if (!key->debugfs.dir) - return; - - DEBUGFS_ADD(keylen); - DEBUGFS_ADD(flags); - DEBUGFS_ADD(keyidx); - DEBUGFS_ADD(hw_key_idx); - DEBUGFS_ADD(tx_rx_count); - DEBUGFS_ADD(algorithm); - DEBUGFS_ADD(tx_spec); - DEBUGFS_ADD(rx_spec); - DEBUGFS_ADD(replays); - DEBUGFS_ADD(key); - DEBUGFS_ADD(ifindex); -}; - -#define DEBUGFS_DEL(name) \ - debugfs_remove(key->debugfs.name); key->debugfs.name = NULL; - -void ieee80211_debugfs_key_remove(struct ieee80211_key *key) -{ - if (!key) - return; - - DEBUGFS_DEL(keylen); - DEBUGFS_DEL(flags); - DEBUGFS_DEL(keyidx); - DEBUGFS_DEL(hw_key_idx); - DEBUGFS_DEL(tx_rx_count); - DEBUGFS_DEL(algorithm); - DEBUGFS_DEL(tx_spec); - DEBUGFS_DEL(rx_spec); - DEBUGFS_DEL(replays); - DEBUGFS_DEL(key); - DEBUGFS_DEL(ifindex); - - debugfs_remove(key->debugfs.stalink); - key->debugfs.stalink = NULL; - debugfs_remove(key->debugfs.dir); - key->debugfs.dir = NULL; -} -void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata) -{ - char buf[50]; - - if (!sdata->debugfsdir) - return; - - sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx); - sdata->debugfs.default_key = - debugfs_create_symlink("default_key", sdata->debugfsdir, buf); -} -void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata) -{ - if (!sdata) - return; - - debugfs_remove(sdata->debugfs.default_key); - sdata->debugfs.default_key = NULL; -} -void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key, - struct sta_info *sta) -{ - char buf[50]; - DECLARE_MAC_BUF(mac); - - if (!key->debugfs.dir) - return; - - sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr)); - key->debugfs.stalink = - debugfs_create_symlink("station", key->debugfs.dir, buf); -} - -void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key, - struct sta_info *sta) -{ - debugfs_remove(key->debugfs.stalink); - key->debugfs.stalink = NULL; -} diff --git a/package/mac80211/src/net/mac80211/debugfs_key.h b/package/mac80211/src/net/mac80211/debugfs_key.h deleted file mode 100644 index aecfce395d..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_key.h +++ /dev/null @@ -1,34 +0,0 @@ -#ifndef __MAC80211_DEBUGFS_KEY_H -#define __MAC80211_DEBUGFS_KEY_H - -#ifdef CONFIG_MAC80211_DEBUGFS -void ieee80211_debugfs_key_add(struct ieee80211_local *local, - struct ieee80211_key *key); -void ieee80211_debugfs_key_remove(struct ieee80211_key *key); -void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata); -void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata); -void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key, - struct sta_info *sta); -void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key, - struct sta_info *sta); -#else -static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local, - struct ieee80211_key *key) -{} -static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key) -{} -static inline void ieee80211_debugfs_key_add_default( - struct ieee80211_sub_if_data *sdata) -{} -static inline void ieee80211_debugfs_key_remove_default( - struct ieee80211_sub_if_data *sdata) -{} -static inline void ieee80211_debugfs_key_sta_link( - struct ieee80211_key *key, struct sta_info *sta) -{} -static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key, - struct sta_info *sta) -{} -#endif - -#endif /* __MAC80211_DEBUGFS_KEY_H */ diff --git a/package/mac80211/src/net/mac80211/debugfs_netdev.c b/package/mac80211/src/net/mac80211/debugfs_netdev.c deleted file mode 100644 index 29f7b98ba1..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_netdev.c +++ /dev/null @@ -1,380 +0,0 @@ -/* - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/if.h> -#include <linux/interrupt.h> -#include <linux/netdevice.h> -#include <linux/rtnetlink.h> -#include <linux/notifier.h> -#include <net/mac80211.h> -#include <net/cfg80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "debugfs.h" -#include "debugfs_netdev.h" - -static ssize_t ieee80211_if_read( - struct ieee80211_sub_if_data *sdata, - char __user *userbuf, - size_t count, loff_t *ppos, - ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int)) -{ - char buf[70]; - ssize_t ret = -EINVAL; - - read_lock(&dev_base_lock); - if (sdata->dev->reg_state == NETREG_REGISTERED) { - ret = (*format)(sdata, buf, sizeof(buf)); - ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); - } - read_unlock(&dev_base_lock); - return ret; -} - -#define IEEE80211_IF_FMT(name, field, format_string) \ -static ssize_t ieee80211_if_fmt_##name( \ - const struct ieee80211_sub_if_data *sdata, char *buf, \ - int buflen) \ -{ \ - return scnprintf(buf, buflen, format_string, sdata->field); \ -} -#define IEEE80211_IF_FMT_DEC(name, field) \ - IEEE80211_IF_FMT(name, field, "%d\n") -#define IEEE80211_IF_FMT_HEX(name, field) \ - IEEE80211_IF_FMT(name, field, "%#x\n") -#define IEEE80211_IF_FMT_SIZE(name, field) \ - IEEE80211_IF_FMT(name, field, "%zd\n") - -#define IEEE80211_IF_FMT_ATOMIC(name, field) \ -static ssize_t ieee80211_if_fmt_##name( \ - const struct ieee80211_sub_if_data *sdata, \ - char *buf, int buflen) \ -{ \ - return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\ -} - -#define IEEE80211_IF_FMT_MAC(name, field) \ -static ssize_t ieee80211_if_fmt_##name( \ - const struct ieee80211_sub_if_data *sdata, char *buf, \ - int buflen) \ -{ \ - DECLARE_MAC_BUF(mac); \ - return scnprintf(buf, buflen, "%s\n", print_mac(mac, sdata->field));\ -} - -#define __IEEE80211_IF_FILE(name) \ -static ssize_t ieee80211_if_read_##name(struct file *file, \ - char __user *userbuf, \ - size_t count, loff_t *ppos) \ -{ \ - return ieee80211_if_read(file->private_data, \ - userbuf, count, ppos, \ - ieee80211_if_fmt_##name); \ -} \ -static const struct file_operations name##_ops = { \ - .read = ieee80211_if_read_##name, \ - .open = mac80211_open_file_generic, \ -} - -#define IEEE80211_IF_FILE(name, field, format) \ - IEEE80211_IF_FMT_##format(name, field) \ - __IEEE80211_IF_FILE(name) - -/* common attributes */ -IEEE80211_IF_FILE(channel_use, channel_use, DEC); -IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC); - -/* STA/IBSS attributes */ -IEEE80211_IF_FILE(state, u.sta.state, DEC); -IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC); -IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC); -IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE); -IEEE80211_IF_FILE(aid, u.sta.aid, DEC); -IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX); -IEEE80211_IF_FILE(capab, u.sta.capab, HEX); -IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE); -IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC); -IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC); -IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX); -IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC); -IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC); - -static ssize_t ieee80211_if_fmt_flags( - const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) -{ - return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n", - sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "", - sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "", - sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "", - sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "", - sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "", - sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "", - sdata->bss_conf.use_cts_prot ? "CTS prot\n" : ""); -} -__IEEE80211_IF_FILE(flags); - -/* AP attributes */ -IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC); -IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC); -IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC); -IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC); -IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC); - -static ssize_t ieee80211_if_fmt_num_buffered_multicast( - const struct ieee80211_sub_if_data *sdata, char *buf, int buflen) -{ - return scnprintf(buf, buflen, "%u\n", - skb_queue_len(&sdata->u.ap.ps_bc_buf)); -} -__IEEE80211_IF_FILE(num_buffered_multicast); - -/* WDS attributes */ -IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC); - -#define DEBUGFS_ADD(name, type)\ - sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\ - sdata->debugfsdir, sdata, &name##_ops); - -static void add_sta_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_ADD(channel_use, sta); - DEBUGFS_ADD(drop_unencrypted, sta); - DEBUGFS_ADD(state, sta); - DEBUGFS_ADD(bssid, sta); - DEBUGFS_ADD(prev_bssid, sta); - DEBUGFS_ADD(ssid_len, sta); - DEBUGFS_ADD(aid, sta); - DEBUGFS_ADD(ap_capab, sta); - DEBUGFS_ADD(capab, sta); - DEBUGFS_ADD(extra_ie_len, sta); - DEBUGFS_ADD(auth_tries, sta); - DEBUGFS_ADD(assoc_tries, sta); - DEBUGFS_ADD(auth_algs, sta); - DEBUGFS_ADD(auth_alg, sta); - DEBUGFS_ADD(auth_transaction, sta); - DEBUGFS_ADD(flags, sta); -} - -static void add_ap_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_ADD(channel_use, ap); - DEBUGFS_ADD(drop_unencrypted, ap); - DEBUGFS_ADD(num_sta_ps, ap); - DEBUGFS_ADD(dtim_count, ap); - DEBUGFS_ADD(num_beacons, ap); - DEBUGFS_ADD(force_unicast_rateidx, ap); - DEBUGFS_ADD(max_ratectrl_rateidx, ap); - DEBUGFS_ADD(num_buffered_multicast, ap); -} - -static void add_wds_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_ADD(channel_use, wds); - DEBUGFS_ADD(drop_unencrypted, wds); - DEBUGFS_ADD(peer, wds); -} - -static void add_vlan_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_ADD(channel_use, vlan); - DEBUGFS_ADD(drop_unencrypted, vlan); -} - -static void add_monitor_files(struct ieee80211_sub_if_data *sdata) -{ -} - -static void add_files(struct ieee80211_sub_if_data *sdata) -{ - if (!sdata->debugfsdir) - return; - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - add_sta_files(sdata); - break; - case IEEE80211_IF_TYPE_AP: - add_ap_files(sdata); - break; - case IEEE80211_IF_TYPE_WDS: - add_wds_files(sdata); - break; - case IEEE80211_IF_TYPE_MNTR: - add_monitor_files(sdata); - break; - case IEEE80211_IF_TYPE_VLAN: - add_vlan_files(sdata); - break; - default: - break; - } -} - -#define DEBUGFS_DEL(name, type) \ - do { \ - debugfs_remove(sdata->debugfs.type.name); \ - sdata->debugfs.type.name = NULL; \ - } while (0) - -static void del_sta_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_DEL(channel_use, sta); - DEBUGFS_DEL(drop_unencrypted, sta); - DEBUGFS_DEL(state, sta); - DEBUGFS_DEL(bssid, sta); - DEBUGFS_DEL(prev_bssid, sta); - DEBUGFS_DEL(ssid_len, sta); - DEBUGFS_DEL(aid, sta); - DEBUGFS_DEL(ap_capab, sta); - DEBUGFS_DEL(capab, sta); - DEBUGFS_DEL(extra_ie_len, sta); - DEBUGFS_DEL(auth_tries, sta); - DEBUGFS_DEL(assoc_tries, sta); - DEBUGFS_DEL(auth_algs, sta); - DEBUGFS_DEL(auth_alg, sta); - DEBUGFS_DEL(auth_transaction, sta); - DEBUGFS_DEL(flags, sta); -} - -static void del_ap_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_DEL(channel_use, ap); - DEBUGFS_DEL(drop_unencrypted, ap); - DEBUGFS_DEL(num_sta_ps, ap); - DEBUGFS_DEL(dtim_count, ap); - DEBUGFS_DEL(num_beacons, ap); - DEBUGFS_DEL(force_unicast_rateidx, ap); - DEBUGFS_DEL(max_ratectrl_rateidx, ap); - DEBUGFS_DEL(num_buffered_multicast, ap); -} - -static void del_wds_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_DEL(channel_use, wds); - DEBUGFS_DEL(drop_unencrypted, wds); - DEBUGFS_DEL(peer, wds); -} - -static void del_vlan_files(struct ieee80211_sub_if_data *sdata) -{ - DEBUGFS_DEL(channel_use, vlan); - DEBUGFS_DEL(drop_unencrypted, vlan); -} - -static void del_monitor_files(struct ieee80211_sub_if_data *sdata) -{ -} - -static void del_files(struct ieee80211_sub_if_data *sdata, int type) -{ - if (!sdata->debugfsdir) - return; - - switch (type) { - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - del_sta_files(sdata); - break; - case IEEE80211_IF_TYPE_AP: - del_ap_files(sdata); - break; - case IEEE80211_IF_TYPE_WDS: - del_wds_files(sdata); - break; - case IEEE80211_IF_TYPE_MNTR: - del_monitor_files(sdata); - break; - case IEEE80211_IF_TYPE_VLAN: - del_vlan_files(sdata); - break; - default: - break; - } -} - -static int notif_registered; - -void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata) -{ - char buf[10+IFNAMSIZ]; - - if (!notif_registered) - return; - - sprintf(buf, "netdev:%s", sdata->dev->name); - sdata->debugfsdir = debugfs_create_dir(buf, - sdata->local->hw.wiphy->debugfsdir); -} - -void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata) -{ - del_files(sdata, sdata->vif.type); - debugfs_remove(sdata->debugfsdir); - sdata->debugfsdir = NULL; -} - -void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata, - int oldtype) -{ - del_files(sdata, oldtype); - add_files(sdata); -} - -static int netdev_notify(struct notifier_block * nb, - unsigned long state, - void *ndev) -{ - struct net_device *dev = ndev; - struct dentry *dir; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - char buf[10+IFNAMSIZ]; - - if (state != NETDEV_CHANGENAME) - return 0; - - if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy) - return 0; - - if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid) - return 0; - - sprintf(buf, "netdev:%s", dev->name); - dir = sdata->debugfsdir; - if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) - printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs " - "dir to %s\n", buf); - - return 0; -} - -static struct notifier_block mac80211_debugfs_netdev_notifier = { - .notifier_call = netdev_notify, -}; - -void ieee80211_debugfs_netdev_init(void) -{ - int err; - - err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier); - if (err) { - printk(KERN_ERR - "mac80211: failed to install netdev notifier," - " disabling per-netdev debugfs!\n"); - } else - notif_registered = 1; -} - -void ieee80211_debugfs_netdev_exit(void) -{ - unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier); - notif_registered = 0; -} diff --git a/package/mac80211/src/net/mac80211/debugfs_netdev.h b/package/mac80211/src/net/mac80211/debugfs_netdev.h deleted file mode 100644 index a690071fde..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_netdev.h +++ /dev/null @@ -1,30 +0,0 @@ -/* routines exported for debugfs handling */ - -#ifndef __IEEE80211_DEBUGFS_NETDEV_H -#define __IEEE80211_DEBUGFS_NETDEV_H - -#ifdef CONFIG_MAC80211_DEBUGFS -void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata); -void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata); -void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata, - int oldtype); -void ieee80211_debugfs_netdev_init(void); -void ieee80211_debugfs_netdev_exit(void); -#else -static inline void ieee80211_debugfs_add_netdev( - struct ieee80211_sub_if_data *sdata) -{} -static inline void ieee80211_debugfs_remove_netdev( - struct ieee80211_sub_if_data *sdata) -{} -static inline void ieee80211_debugfs_change_if_type( - struct ieee80211_sub_if_data *sdata, int oldtype) -{} -static inline void ieee80211_debugfs_netdev_init(void) -{} - -static inline void ieee80211_debugfs_netdev_exit(void) -{} -#endif - -#endif /* __IEEE80211_DEBUGFS_NETDEV_H */ diff --git a/package/mac80211/src/net/mac80211/debugfs_sta.c b/package/mac80211/src/net/mac80211/debugfs_sta.c deleted file mode 100644 index ac61353ae7..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_sta.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Copyright 2003-2005 Devicescape Software, Inc. - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/debugfs.h> -#include <linux/ieee80211.h> -#include "ieee80211_i.h" -#include "debugfs.h" -#include "debugfs_sta.h" -#include "sta_info.h" - -/* sta attributtes */ - -#define STA_READ(name, buflen, field, format_string) \ -static ssize_t sta_ ##name## _read(struct file *file, \ - char __user *userbuf, \ - size_t count, loff_t *ppos) \ -{ \ - int res; \ - struct sta_info *sta = file->private_data; \ - char buf[buflen]; \ - res = scnprintf(buf, buflen, format_string, sta->field); \ - return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ -} -#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n") -#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n") -#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n") -#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n") - -#define STA_OPS(name) \ -static const struct file_operations sta_ ##name## _ops = { \ - .read = sta_##name##_read, \ - .open = mac80211_open_file_generic, \ -} - -#define STA_OPS_WR(name) \ -static const struct file_operations sta_ ##name## _ops = { \ - .read = sta_##name##_read, \ - .write = sta_##name##_write, \ - .open = mac80211_open_file_generic, \ -} - -#define STA_FILE(name, field, format) \ - STA_READ_##format(name, field) \ - STA_OPS(name) - -STA_FILE(aid, aid, D); -STA_FILE(dev, dev->name, S); -STA_FILE(rx_packets, rx_packets, LU); -STA_FILE(tx_packets, tx_packets, LU); -STA_FILE(rx_bytes, rx_bytes, LU); -STA_FILE(tx_bytes, tx_bytes, LU); -STA_FILE(rx_duplicates, num_duplicates, LU); -STA_FILE(rx_fragments, rx_fragments, LU); -STA_FILE(rx_dropped, rx_dropped, LU); -STA_FILE(tx_fragments, tx_fragments, LU); -STA_FILE(tx_filtered, tx_filtered_count, LU); -STA_FILE(tx_retry_failed, tx_retry_failed, LU); -STA_FILE(tx_retry_count, tx_retry_count, LU); -STA_FILE(last_rssi, last_rssi, D); -STA_FILE(last_signal, last_signal, D); -STA_FILE(last_noise, last_noise, D); -STA_FILE(channel_use, channel_use, D); -STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D); - -static ssize_t sta_flags_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[100]; - struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s", - sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "", - sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "", - sta->flags & WLAN_STA_PS ? "PS\n" : "", - sta->flags & WLAN_STA_TIM ? "TIM\n" : "", - sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", - sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", - sta->flags & WLAN_STA_WME ? "WME\n" : "", - sta->flags & WLAN_STA_WDS ? "WDS\n" : ""); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} -STA_OPS(flags); - -static ssize_t sta_num_ps_buf_frames_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[20]; - struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%u\n", - skb_queue_len(&sta->ps_tx_buf)); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} -STA_OPS(num_ps_buf_frames); - -static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[100]; - struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%d %d %d\n", - sta->last_ack_rssi[0], - sta->last_ack_rssi[1], - sta->last_ack_rssi[2]); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} -STA_OPS(last_ack_rssi); - -static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[20]; - struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%d\n", - sta->last_ack ? - jiffies_to_msecs(jiffies - sta->last_ack) : -1); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} -STA_OPS(last_ack_ms); - -static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[20]; - struct sta_info *sta = file->private_data; - int res = scnprintf(buf, sizeof(buf), "%d\n", - jiffies_to_msecs(jiffies - sta->last_rx)); - return simple_read_from_buffer(userbuf, count, ppos, buf, res); -} -STA_OPS(inactive_ms); - -static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[15*NUM_RX_DATA_QUEUES], *p = buf; - int i; - struct sta_info *sta = file->private_data; - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%x ", - le16_to_cpu(sta->last_seq_ctrl[i])); - p += scnprintf(p, sizeof(buf)+buf-p, "\n"); - return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); -} -STA_OPS(last_seq_ctrl); - -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS -static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[15*NUM_RX_DATA_QUEUES], *p = buf; - int i; - struct sta_info *sta = file->private_data; - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%u ", - sta->wme_rx_queue[i]); - p += scnprintf(p, sizeof(buf)+buf-p, "\n"); - return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); -} -STA_OPS(wme_rx_queue); - -static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[15*NUM_TX_DATA_QUEUES], *p = buf; - int i; - struct sta_info *sta = file->private_data; - for (i = 0; i < NUM_TX_DATA_QUEUES; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%u ", - sta->wme_tx_queue[i]); - p += scnprintf(p, sizeof(buf)+buf-p, "\n"); - return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); -} -STA_OPS(wme_tx_queue); -#endif - -static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char buf[768], *p = buf; - int i; - struct sta_info *sta = file->private_data; - p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n"); - p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n " - "TIDs info is: \n TID :", - (sta->ampdu_mlme.dialog_token_allocator + 1)); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_rx[i].state); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_rx[i].dialog_token); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_tx[i].state); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_tx[i].dialog_token); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :"); - for (i = 0; i < STA_TID_NUM; i++) - p += scnprintf(p, sizeof(buf)+buf-p, "%5d", - sta->ampdu_mlme.tid_tx[i].ssn); - - p += scnprintf(p, sizeof(buf)+buf-p, "\n"); - - return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); -} - -static ssize_t sta_agg_status_write(struct file *file, - const char __user *user_buf, size_t count, loff_t *ppos) -{ - struct sta_info *sta = file->private_data; - struct net_device *dev = sta->dev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - u8 *da = sta->addr; - static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0}; - static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1, - 1, 1, 1, 1, 1, 1, 1, 1}; - char *endp; - char buf[32]; - int buf_size, rs; - unsigned int tid_num; - char state[4]; - - memset(buf, 0x00, sizeof(buf)); - buf_size = min(count, (sizeof(buf)-1)); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - - tid_num = simple_strtoul(buf, &endp, 0); - if (endp == buf) - return -EINVAL; - - if ((tid_num >= 100) && (tid_num <= 115)) { - /* toggle Rx aggregation command */ - tid_num = tid_num - 100; - if (tid_static_rx[tid_num] == 1) { - strcpy(state, "off "); - ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0, - WLAN_REASON_QSTA_REQUIRE_SETUP); - sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0xFF; - tid_static_rx[tid_num] = 0; - } else { - strcpy(state, "on "); - sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0x00; - tid_static_rx[tid_num] = 1; - } - printk(KERN_DEBUG "debugfs - try switching tid %u %s\n", - tid_num, state); - } else if ((tid_num >= 0) && (tid_num <= 15)) { - /* toggle Tx aggregation command */ - if (tid_static_tx[tid_num] == 0) { - strcpy(state, "on "); - rs = ieee80211_start_tx_ba_session(hw, da, tid_num); - if (rs == 0) - tid_static_tx[tid_num] = 1; - } else { - strcpy(state, "off"); - rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1); - if (rs == 0) - tid_static_tx[tid_num] = 0; - } - printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n", - tid_num, state, rs); - } - - return count; -} -STA_OPS_WR(agg_status); - -#define DEBUGFS_ADD(name) \ - sta->debugfs.name = debugfs_create_file(#name, 0444, \ - sta->debugfs.dir, sta, &sta_ ##name## _ops); - -#define DEBUGFS_DEL(name) \ - debugfs_remove(sta->debugfs.name);\ - sta->debugfs.name = NULL; - - -void ieee80211_sta_debugfs_add(struct sta_info *sta) -{ - struct dentry *stations_dir = sta->local->debugfs.stations; - DECLARE_MAC_BUF(mac); - - if (!stations_dir) - return; - - print_mac(mac, sta->addr); - - sta->debugfs.dir = debugfs_create_dir(mac, stations_dir); - if (!sta->debugfs.dir) - return; - - DEBUGFS_ADD(flags); - DEBUGFS_ADD(num_ps_buf_frames); - DEBUGFS_ADD(last_ack_rssi); - DEBUGFS_ADD(last_ack_ms); - DEBUGFS_ADD(inactive_ms); - DEBUGFS_ADD(last_seq_ctrl); -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - DEBUGFS_ADD(wme_rx_queue); - DEBUGFS_ADD(wme_tx_queue); -#endif - DEBUGFS_ADD(agg_status); -} - -void ieee80211_sta_debugfs_remove(struct sta_info *sta) -{ - DEBUGFS_DEL(flags); - DEBUGFS_DEL(num_ps_buf_frames); - DEBUGFS_DEL(last_ack_rssi); - DEBUGFS_DEL(last_ack_ms); - DEBUGFS_DEL(inactive_ms); - DEBUGFS_DEL(last_seq_ctrl); -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - DEBUGFS_DEL(wme_rx_queue); - DEBUGFS_DEL(wme_tx_queue); -#endif - DEBUGFS_DEL(agg_status); - - debugfs_remove(sta->debugfs.dir); - sta->debugfs.dir = NULL; -} diff --git a/package/mac80211/src/net/mac80211/debugfs_sta.h b/package/mac80211/src/net/mac80211/debugfs_sta.h deleted file mode 100644 index 574a1cd54b..0000000000 --- a/package/mac80211/src/net/mac80211/debugfs_sta.h +++ /dev/null @@ -1,12 +0,0 @@ -#ifndef __MAC80211_DEBUGFS_STA_H -#define __MAC80211_DEBUGFS_STA_H - -#ifdef CONFIG_MAC80211_DEBUGFS -void ieee80211_sta_debugfs_add(struct sta_info *sta); -void ieee80211_sta_debugfs_remove(struct sta_info *sta); -#else -static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {} -static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {} -#endif - -#endif /* __MAC80211_DEBUGFS_STA_H */ diff --git a/package/mac80211/src/net/mac80211/event.c b/package/mac80211/src/net/mac80211/event.c deleted file mode 100644 index 2280f40b45..0000000000 --- a/package/mac80211/src/net/mac80211/event.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * mac80211 - events - */ - -#include <linux/netdevice.h> -#include <net/iw_handler.h> -#include "ieee80211_i.h" - -/* - * indicate a failed Michael MIC to userspace; the passed packet - * (in the variable hdr) must be long enough to extract the TKIP - * fields like TSC - */ -void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx, - struct ieee80211_hdr *hdr) -{ - union iwreq_data wrqu; - char *buf = kmalloc(128, GFP_ATOMIC); - DECLARE_MAC_BUF(mac); - - if (buf) { - /* TODO: needed parameters: count, key type, TSC */ - sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" - "keyid=%d %scast addr=%s)", - keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", - print_mac(mac, hdr->addr2)); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); - kfree(buf); - } - - /* - * TODO: re-add support for sending MIC failure indication - * with all info via nl80211 - */ -} diff --git a/package/mac80211/src/net/mac80211/ieee80211.c b/package/mac80211/src/net/mac80211/ieee80211.c deleted file mode 100644 index 1a0171d2f1..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211.c +++ /dev/null @@ -1,1726 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <net/mac80211.h> -#include <net/ieee80211_radiotap.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/if_arp.h> -#include <linux/wireless.h> -#include <linux/rtnetlink.h> -#include <linux/bitmap.h> -#include <net/net_namespace.h> -#include <net/cfg80211.h> - -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "wep.h" -#include "wme.h" -#include "aes_ccm.h" -#include "ieee80211_led.h" -#include "cfg.h" -#include "debugfs.h" -#include "debugfs_netdev.h" - -#define SUPP_MCS_SET_LEN 16 - -/* - * For seeing transmitted packets on monitor interfaces - * we have a radiotap header too. - */ -struct ieee80211_tx_status_rtap_hdr { - struct ieee80211_radiotap_header hdr; - __le16 tx_flags; - u8 data_retries; -} __attribute__ ((packed)); - -/* common interface routines */ - -static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr) -{ - memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */ - return ETH_ALEN; -} - -/* must be called under mdev tx lock */ -static void ieee80211_configure_filter(struct ieee80211_local *local) -{ - unsigned int changed_flags; - unsigned int new_flags = 0; - - if (atomic_read(&local->iff_promiscs)) - new_flags |= FIF_PROMISC_IN_BSS; - - if (atomic_read(&local->iff_allmultis)) - new_flags |= FIF_ALLMULTI; - - if (local->monitors) - new_flags |= FIF_BCN_PRBRESP_PROMISC; - - if (local->fif_fcsfail) - new_flags |= FIF_FCSFAIL; - - if (local->fif_plcpfail) - new_flags |= FIF_PLCPFAIL; - - if (local->fif_control) - new_flags |= FIF_CONTROL; - - if (local->fif_other_bss) - new_flags |= FIF_OTHER_BSS; - - changed_flags = local->filter_flags ^ new_flags; - - /* be a bit nasty */ - new_flags |= (1<<31); - - local->ops->configure_filter(local_to_hw(local), - changed_flags, &new_flags, - local->mdev->mc_count, - local->mdev->mc_list); - - WARN_ON(new_flags & (1<<31)); - - local->filter_flags = new_flags & ~(1<<31); -} - -/* master interface */ - -static int ieee80211_master_open(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; - int res = -EOPNOTSUPP; - - /* we hold the RTNL here so can safely walk the list */ - list_for_each_entry(sdata, &local->interfaces, list) { - if (sdata->dev != dev && netif_running(sdata->dev)) { - res = 0; - break; - } - } - return res; -} - -static int ieee80211_master_stop(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; - - /* we hold the RTNL here so can safely walk the list */ - list_for_each_entry(sdata, &local->interfaces, list) - if (sdata->dev != dev && netif_running(sdata->dev)) - dev_close(sdata->dev); - - return 0; -} - -static void ieee80211_master_set_multicast_list(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - ieee80211_configure_filter(local); -} - -/* regular interfaces */ - -static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) -{ - /* FIX: what would be proper limits for MTU? - * This interface uses 802.3 frames. */ - if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) { - printk(KERN_WARNING "%s: invalid MTU %d\n", - dev->name, new_mtu); - return -EINVAL; - } - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - dev->mtu = new_mtu; - return 0; -} - -static inline int identical_mac_addr_allowed(int type1, int type2) -{ - return (type1 == IEEE80211_IF_TYPE_MNTR || - type2 == IEEE80211_IF_TYPE_MNTR || - (type1 == IEEE80211_IF_TYPE_AP && - type2 == IEEE80211_IF_TYPE_WDS) || - (type1 == IEEE80211_IF_TYPE_WDS && - (type2 == IEEE80211_IF_TYPE_WDS || - type2 == IEEE80211_IF_TYPE_AP)) || - (type1 == IEEE80211_IF_TYPE_AP && - type2 == IEEE80211_IF_TYPE_VLAN) || - (type1 == IEEE80211_IF_TYPE_VLAN && - (type2 == IEEE80211_IF_TYPE_AP || - type2 == IEEE80211_IF_TYPE_VLAN))); -} - -static int ieee80211_open(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata, *nsdata; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_if_init_conf conf; - int res; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - /* we hold the RTNL here so can safely walk the list */ - list_for_each_entry(nsdata, &local->interfaces, list) { - struct net_device *ndev = nsdata->dev; - - if (ndev != dev && ndev != local->mdev && netif_running(ndev) && - compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) { - /* - * check whether it may have the same address - */ - if (!identical_mac_addr_allowed(sdata->vif.type, - nsdata->vif.type)) - return -ENOTUNIQ; - - /* - * can only add VLANs to enabled APs - */ - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN && - nsdata->vif.type == IEEE80211_IF_TYPE_AP && - netif_running(nsdata->dev)) - sdata->u.vlan.ap = nsdata; - } - } - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_WDS: - if (is_zero_ether_addr(sdata->u.wds.remote_addr)) - return -ENOLINK; - break; - case IEEE80211_IF_TYPE_VLAN: - if (!sdata->u.vlan.ap) - return -ENOLINK; - break; - case IEEE80211_IF_TYPE_AP: - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_MNTR: - case IEEE80211_IF_TYPE_IBSS: - /* no special treatment */ - break; - case IEEE80211_IF_TYPE_INVALID: - /* cannot happen */ - WARN_ON(1); - break; - } - - if (local->open_count == 0) { - res = 0; - if (local->ops->start) - res = local->ops->start(local_to_hw(local)); - if (res) - return res; - ieee80211_hw_config(local); - ieee80211_led_radio(local, local->hw.conf.radio_enabled); - } - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_VLAN: - list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans); - /* no need to tell driver */ - break; - case IEEE80211_IF_TYPE_MNTR: - if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { - local->cooked_mntrs++; - break; - } - - /* must be before the call to ieee80211_configure_filter */ - local->monitors++; - if (local->monitors == 1) - local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP; - - if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL) - local->fif_fcsfail++; - if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL) - local->fif_plcpfail++; - if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL) - local->fif_control++; - if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS) - local->fif_other_bss++; - - netif_tx_lock_bh(local->mdev); - ieee80211_configure_filter(local); - netif_tx_unlock_bh(local->mdev); - break; - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET; - /* fall through */ - default: - conf.vif = &sdata->vif; - conf.type = sdata->vif.type; - conf.mac_addr = dev->dev_addr; - res = local->ops->add_interface(local_to_hw(local), &conf); - if (res && !local->open_count && local->ops->stop) - local->ops->stop(local_to_hw(local)); - if (res) - return res; - - ieee80211_if_config(dev); - ieee80211_reset_erp_info(dev); - ieee80211_enable_keys(sdata); - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)) - netif_carrier_off(dev); - else - netif_carrier_on(dev); - } - - if (local->open_count == 0) { - res = dev_open(local->mdev); - WARN_ON(res); - tasklet_enable(&local->tx_pending_tasklet); - tasklet_enable(&local->tasklet); - } - - /* - * set_multicast_list will be invoked by the networking core - * which will check whether any increments here were done in - * error and sync them down to the hardware as filter flags. - */ - if (sdata->flags & IEEE80211_SDATA_ALLMULTI) - atomic_inc(&local->iff_allmultis); - - if (sdata->flags & IEEE80211_SDATA_PROMISC) - atomic_inc(&local->iff_promiscs); - - local->open_count++; - - netif_start_queue(dev); - - return 0; -} - -static int ieee80211_stop(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_if_init_conf conf; - struct sta_info *sta; - int i; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - list_for_each_entry(sta, &local->sta_list, list) { - if (sta->dev == dev) - for (i = 0; i < STA_TID_NUM; i++) - ieee80211_sta_stop_rx_ba_session(sta->dev, - sta->addr, i, - WLAN_BACK_RECIPIENT, - WLAN_REASON_QSTA_LEAVE_QBSS); - } - - netif_stop_queue(dev); - - /* - * Don't count this interface for promisc/allmulti while it - * is down. dev_mc_unsync() will invoke set_multicast_list - * on the master interface which will sync these down to the - * hardware as filter flags. - */ - if (sdata->flags & IEEE80211_SDATA_ALLMULTI) - atomic_dec(&local->iff_allmultis); - - if (sdata->flags & IEEE80211_SDATA_PROMISC) - atomic_dec(&local->iff_promiscs); - - dev_mc_unsync(local->mdev, dev); - - /* APs need special treatment */ - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { - struct ieee80211_sub_if_data *vlan, *tmp; - struct beacon_data *old_beacon = sdata->u.ap.beacon; - - /* remove beacon */ - rcu_assign_pointer(sdata->u.ap.beacon, NULL); - synchronize_rcu(); - kfree(old_beacon); - - /* down all dependent devices, that is VLANs */ - list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans, - u.vlan.list) - dev_close(vlan->dev); - WARN_ON(!list_empty(&sdata->u.ap.vlans)); - } - - local->open_count--; - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_VLAN: - list_del(&sdata->u.vlan.list); - sdata->u.vlan.ap = NULL; - /* no need to tell driver */ - break; - case IEEE80211_IF_TYPE_MNTR: - if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) { - local->cooked_mntrs--; - break; - } - - local->monitors--; - if (local->monitors == 0) - local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP; - - if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL) - local->fif_fcsfail--; - if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL) - local->fif_plcpfail--; - if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL) - local->fif_control--; - if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS) - local->fif_other_bss--; - - netif_tx_lock_bh(local->mdev); - ieee80211_configure_filter(local); - netif_tx_unlock_bh(local->mdev); - break; - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - sdata->u.sta.state = IEEE80211_DISABLED; - del_timer_sync(&sdata->u.sta.timer); - /* - * When we get here, the interface is marked down. - * Call synchronize_rcu() to wait for the RX path - * should it be using the interface and enqueuing - * frames at this very time on another CPU. - */ - synchronize_rcu(); - skb_queue_purge(&sdata->u.sta.skb_queue); - - if (local->scan_dev == sdata->dev) { - if (!local->ops->hw_scan) { - local->sta_sw_scanning = 0; - cancel_delayed_work(&local->scan_work); - } else - local->sta_hw_scanning = 0; - } - - flush_workqueue(local->hw.workqueue); - - sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED; - kfree(sdata->u.sta.extra_ie); - sdata->u.sta.extra_ie = NULL; - sdata->u.sta.extra_ie_len = 0; - /* fall through */ - default: - conf.vif = &sdata->vif; - conf.type = sdata->vif.type; - conf.mac_addr = dev->dev_addr; - /* disable all keys for as long as this netdev is down */ - ieee80211_disable_keys(sdata); - local->ops->remove_interface(local_to_hw(local), &conf); - } - - if (local->open_count == 0) { - if (netif_running(local->mdev)) - dev_close(local->mdev); - - if (local->ops->stop) - local->ops->stop(local_to_hw(local)); - - ieee80211_led_radio(local, 0); - - tasklet_disable(&local->tx_pending_tasklet); - tasklet_disable(&local->tasklet); - } - - return 0; -} - -int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - u16 start_seq_num = 0; - u8 *state; - int ret; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) - return -EINVAL; - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Open BA session requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - sta = sta_info_get(local, ra); - if (!sta) { - printk(KERN_DEBUG "Could not find the station\n"); - return -ENOENT; - } - - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - - /* we have tried too many times, receiver does not want A-MPDU */ - if (sta->ampdu_mlme.tid_tx[tid].addba_req_num > HT_AGG_MAX_RETRIES) { - ret = -EBUSY; - goto start_ba_exit; - } - - state = &sta->ampdu_mlme.tid_tx[tid].state; - /* check if the TID is not in aggregation flow already */ - if (*state != HT_AGG_STATE_IDLE) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - session is not " - "idle on tid %u\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - ret = -EAGAIN; - goto start_ba_exit; - } - - /* ensure that TX flow won't interrupt us - * until the end of the call to requeue function */ - spin_lock_bh(&local->mdev->queue_lock); - - /* create a new queue for this aggregation */ - ret = ieee80211_ht_agg_queue_add(local, sta, tid); - - /* case no queue is available to aggregation - * don't switch to aggregation */ - if (ret) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - no queue available for" - " tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - spin_unlock_bh(&local->mdev->queue_lock); - goto start_ba_exit; - } - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - - /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the - * call back right away, it must see that the flow has begun */ - *state |= HT_ADDBA_REQUESTED_MSK; - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START, - ra, tid, &start_seq_num); - - if (ret) { - /* No need to requeue the packets in the agg queue, since we - * held the tx lock: no packet could be enqueued to the newly - * allocated queue */ - ieee80211_ht_agg_queue_remove(local, sta, tid, 0); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - HW or queue unavailable" - " for tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - spin_unlock_bh(&local->mdev->queue_lock); - *state = HT_AGG_STATE_IDLE; - goto start_ba_exit; - } - - /* Will put all the packets in the new SW queue */ - ieee80211_requeue(local, ieee802_1d_to_ac[tid]); - spin_unlock_bh(&local->mdev->queue_lock); - - /* We have most probably almost emptied the legacy queue */ - /* ieee80211_wake_queue(local_to_hw(local), ieee802_1d_to_ac[tid]); */ - - /* send an addBA request */ - sta->ampdu_mlme.dialog_token_allocator++; - sta->ampdu_mlme.tid_tx[tid].dialog_token = - sta->ampdu_mlme.dialog_token_allocator; - sta->ampdu_mlme.tid_tx[tid].ssn = start_seq_num; - - ieee80211_send_addba_request(sta->dev, ra, tid, - sta->ampdu_mlme.tid_tx[tid].dialog_token, - sta->ampdu_mlme.tid_tx[tid].ssn, - 0x40, 5000); - - /* activate the timer for the recipient's addBA response */ - sta->ampdu_mlme.tid_tx[tid].addba_resp_timer.expires = - jiffies + ADDBA_RESP_INTERVAL; - add_timer(&sta->ampdu_mlme.tid_tx[tid].addba_resp_timer); - printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); - -start_ba_exit: - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - sta_info_put(sta); - return ret; -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_session); - -int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, - u8 *ra, u16 tid, - enum ieee80211_back_parties initiator) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - int ret = 0; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) - return -EINVAL; - -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Stop a BA session requested for %s tid %u\n", - print_mac(mac, ra), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - sta = sta_info_get(local, ra); - if (!sta) - return -ENOENT; - - /* check if the TID is in aggregation */ - state = &sta->ampdu_mlme.tid_tx[tid].state; - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - - if (*state != HT_AGG_STATE_OPERATIONAL) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Try to stop Tx aggregation on" - " non active TID\n"); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - ret = -ENOENT; - goto stop_BA_exit; - } - - ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]); - - *state = HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP, - ra, tid, NULL); - - /* case HW denied going back to legacy */ - if (ret) { - WARN_ON(ret != -EBUSY); - *state = HT_AGG_STATE_OPERATIONAL; - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - goto stop_BA_exit; - } - -stop_BA_exit: - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - sta_info_put(sta); - return ret; -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_session); - -void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) { - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); - return; - } - - sta = sta_info_get(local, ra); - if (!sta) { - printk(KERN_DEBUG "Could not find station: %s\n", - print_mac(mac, ra)); - return; - } - - state = &sta->ampdu_mlme.tid_tx[tid].state; - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - printk(KERN_DEBUG "addBA was not requested yet, state is %d\n", - *state); - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - sta_info_put(sta); - return; - } - - WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK); - - *state |= HT_ADDBA_DRV_READY_MSK; - - if (*state == HT_AGG_STATE_OPERATIONAL) { - printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid); - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - } - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - sta_info_put(sta); -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_cb); - -void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sta_info *sta; - u8 *state; - int agg_queue; - DECLARE_MAC_BUF(mac); - - if (tid >= STA_TID_NUM) { - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); - return; - } - - printk(KERN_DEBUG "Stop a BA session requested on DA %s tid %d\n", - print_mac(mac, ra), tid); - - sta = sta_info_get(local, ra); - if (!sta) { - printk(KERN_DEBUG "Could not find station: %s\n", - print_mac(mac, ra)); - return; - } - state = &sta->ampdu_mlme.tid_tx[tid].state; - - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) { - printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n"); - sta_info_put(sta); - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - return; - } - - if (*state & HT_AGG_STATE_INITIATOR_MSK) - ieee80211_send_delba(sta->dev, ra, tid, - WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE); - - agg_queue = sta->tid_to_tx_q[tid]; - - /* avoid ordering issues: we are the only one that can modify - * the content of the qdiscs */ - spin_lock_bh(&local->mdev->queue_lock); - /* remove the queue for this aggregation */ - ieee80211_ht_agg_queue_remove(local, sta, tid, 1); - spin_unlock_bh(&local->mdev->queue_lock); - - /* we just requeued the all the frames that were in the removed - * queue, and since we might miss a softirq we do netif_schedule. - * ieee80211_wake_queue is not used here as this queue is not - * necessarily stopped */ - netif_schedule(local->mdev); - *state = HT_AGG_STATE_IDLE; - sta->ampdu_mlme.tid_tx[tid].addba_req_num = 0; - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - - sta_info_put(sta); -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb); - -void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, - const u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_ra_tid *ra_tid; - struct sk_buff *skb = dev_alloc_skb(0); - - if (unlikely(!skb)) { - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping start BA session", skb->dev->name); - return; - } - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - memcpy(&ra_tid->ra, ra, ETH_ALEN); - ra_tid->tid = tid; - - skb->pkt_type = IEEE80211_ADDBA_MSG; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe); - -void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, - const u8 *ra, u16 tid) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_ra_tid *ra_tid; - struct sk_buff *skb = dev_alloc_skb(0); - - if (unlikely(!skb)) { - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping stop BA session", skb->dev->name); - return; - } - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - memcpy(&ra_tid->ra, ra, ETH_ALEN); - ra_tid->tid = tid; - - skb->pkt_type = IEEE80211_DELBA_MSG; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe); - -static void ieee80211_set_multicast_list(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int allmulti, promisc, sdata_allmulti, sdata_promisc; - - allmulti = !!(dev->flags & IFF_ALLMULTI); - promisc = !!(dev->flags & IFF_PROMISC); - sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI); - sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC); - - if (allmulti != sdata_allmulti) { - if (dev->flags & IFF_ALLMULTI) - atomic_inc(&local->iff_allmultis); - else - atomic_dec(&local->iff_allmultis); - sdata->flags ^= IEEE80211_SDATA_ALLMULTI; - } - - if (promisc != sdata_promisc) { - if (dev->flags & IFF_PROMISC) - atomic_inc(&local->iff_promiscs); - else - atomic_dec(&local->iff_promiscs); - sdata->flags ^= IEEE80211_SDATA_PROMISC; - } - - dev_mc_sync(local->mdev, dev); -} - -static const struct header_ops ieee80211_header_ops = { - .create = eth_header, - .parse = header_parse_80211, - .rebuild = eth_rebuild_header, - .cache = eth_header_cache, - .cache_update = eth_header_cache_update, -}; - -/* Must not be called for mdev */ -void ieee80211_if_setup(struct net_device *dev) -{ - ether_setup(dev); - dev->hard_start_xmit = ieee80211_subif_start_xmit; - dev->wireless_handlers = &ieee80211_iw_handler_def; - dev->set_multicast_list = ieee80211_set_multicast_list; - dev->change_mtu = ieee80211_change_mtu; - dev->open = ieee80211_open; - dev->stop = ieee80211_stop; - dev->destructor = ieee80211_if_free; -} - -/* WDS specialties */ - -int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta; - DECLARE_MAC_BUF(mac); - - if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0) - return 0; - - /* Create STA entry for the new peer */ - sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL); - if (!sta) - return -ENOMEM; - - sta->flags |= WLAN_STA_AUTHORIZED; - - sta_info_put(sta); - - /* Remove STA entry for the old peer */ - sta = sta_info_get(local, sdata->u.wds.remote_addr); - if (sta) { - sta_info_free(sta); - sta_info_put(sta); - } else { - printk(KERN_DEBUG "%s: could not find STA entry for WDS link " - "peer %s\n", - dev->name, print_mac(mac, sdata->u.wds.remote_addr)); - } - - /* Update WDS link data */ - memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN); - - return 0; -} - -/* everything else */ - -static int __ieee80211_if_config(struct net_device *dev, - struct sk_buff *beacon, - struct ieee80211_tx_control *control) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_if_conf conf; - - if (!local->ops->config_interface || !netif_running(dev)) - return 0; - - memset(&conf, 0, sizeof(conf)); - conf.type = sdata->vif.type; - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - conf.bssid = sdata->u.sta.bssid; - conf.ssid = sdata->u.sta.ssid; - conf.ssid_len = sdata->u.sta.ssid_len; - } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { - conf.ssid = sdata->u.ap.ssid; - conf.ssid_len = sdata->u.ap.ssid_len; - conf.beacon = beacon; - conf.beacon_control = control; - } - return local->ops->config_interface(local_to_hw(local), - &sdata->vif, &conf); -} - -int ieee80211_if_config(struct net_device *dev) -{ - return __ieee80211_if_config(dev, NULL, NULL); -} - -int ieee80211_if_config_beacon(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_tx_control control; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sk_buff *skb; - - if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE)) - return 0; - skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif, - &control); - if (!skb) - return -ENOMEM; - return __ieee80211_if_config(dev, skb, &control); -} - -int ieee80211_hw_config(struct ieee80211_local *local) -{ - struct ieee80211_channel *chan; - int ret = 0; - - if (local->sta_sw_scanning) - chan = local->scan_channel; - else - chan = local->oper_channel; - - local->hw.conf.channel = chan; - - if (!local->hw.conf.power_level) - local->hw.conf.power_level = chan->max_power; - else - local->hw.conf.power_level = min(chan->max_power, - local->hw.conf.power_level); - - local->hw.conf.max_antenna_gain = chan->max_antenna_gain; - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n", - wiphy_name(local->hw.wiphy), chan->center_freq); -#endif - - if (local->open_count) - ret = local->ops->config(local_to_hw(local), &local->hw.conf); - - return ret; -} - -/** - * ieee80211_hw_config_ht should be used only after legacy configuration - * has been determined, as ht configuration depends upon the hardware's - * HT abilities for a _specific_ band. - */ -int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap) -{ - struct ieee80211_conf *conf = &local->hw.conf; - struct ieee80211_supported_band *sband; - int i; - - sband = local->hw.wiphy->bands[conf->channel->band]; - - /* HT is not supported */ - if (!sband->ht_info.ht_supported) { - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - return -EOPNOTSUPP; - } - - /* disable HT */ - if (!enable_ht) { - conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE; - } else { - conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE; - conf->ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap; - conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS); - conf->ht_conf.cap |= - sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS; - conf->ht_bss_conf.primary_channel = - req_bss_cap->primary_channel; - conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap; - conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode; - for (i = 0; i < SUPP_MCS_SET_LEN; i++) - conf->ht_conf.supp_mcs_set[i] = - sband->ht_info.supp_mcs_set[i] & - req_ht_cap->supp_mcs_set[i]; - - /* In STA mode, this gives us indication - * to the AP's mode of operation */ - conf->ht_conf.ht_supported = 1; - conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor; - conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density; - } - - local->ops->conf_ht(local_to_hw(local), &local->hw.conf); - - return 0; -} - -void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, - u32 changed) -{ - struct ieee80211_local *local = sdata->local; - - if (!changed) - return; - - if (local->ops->bss_info_changed) - local->ops->bss_info_changed(local_to_hw(local), - &sdata->vif, - &sdata->bss_conf, - changed); -} - -void ieee80211_reset_erp_info(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - sdata->bss_conf.use_cts_prot = 0; - sdata->bss_conf.use_short_preamble = 0; - ieee80211_bss_info_change_notify(sdata, - BSS_CHANGED_ERP_CTS_PROT | - BSS_CHANGED_ERP_PREAMBLE); -} - -void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_tx_status *saved; - int tmp; - - skb->dev = local->mdev; - saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC); - if (unlikely(!saved)) { - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping tx status", skb->dev->name); - /* should be dev_kfree_skb_irq, but due to this function being - * named _irqsafe instead of just _irq we can't be sure that - * people won't call it from non-irq contexts */ - dev_kfree_skb_any(skb); - return; - } - memcpy(saved, status, sizeof(struct ieee80211_tx_status)); - /* copy pointer to saved status into skb->cb for use by tasklet */ - memcpy(skb->cb, &saved, sizeof(saved)); - - skb->pkt_type = IEEE80211_TX_STATUS_MSG; - skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ? - &local->skb_queue : &local->skb_queue_unreliable, skb); - tmp = skb_queue_len(&local->skb_queue) + - skb_queue_len(&local->skb_queue_unreliable); - while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT && - (skb = skb_dequeue(&local->skb_queue_unreliable))) { - memcpy(&saved, skb->cb, sizeof(saved)); - kfree(saved); - dev_kfree_skb_irq(skb); - tmp--; - I802_DEBUG_INC(local->tx_status_drop); - } - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_tx_status_irqsafe); - -static void ieee80211_tasklet_handler(unsigned long data) -{ - struct ieee80211_local *local = (struct ieee80211_local *) data; - struct sk_buff *skb; - struct ieee80211_rx_status rx_status; - struct ieee80211_tx_status *tx_status; - struct ieee80211_ra_tid *ra_tid; - - while ((skb = skb_dequeue(&local->skb_queue)) || - (skb = skb_dequeue(&local->skb_queue_unreliable))) { - switch (skb->pkt_type) { - case IEEE80211_RX_MSG: - /* status is in skb->cb */ - memcpy(&rx_status, skb->cb, sizeof(rx_status)); - /* Clear skb->pkt_type in order to not confuse kernel - * netstack. */ - skb->pkt_type = 0; - __ieee80211_rx(local_to_hw(local), skb, &rx_status); - break; - case IEEE80211_TX_STATUS_MSG: - /* get pointer to saved status out of skb->cb */ - memcpy(&tx_status, skb->cb, sizeof(tx_status)); - skb->pkt_type = 0; - ieee80211_tx_status(local_to_hw(local), - skb, tx_status); - kfree(tx_status); - break; - case IEEE80211_DELBA_MSG: - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - ieee80211_stop_tx_ba_cb(local_to_hw(local), - ra_tid->ra, ra_tid->tid); - dev_kfree_skb(skb); - break; - case IEEE80211_ADDBA_MSG: - ra_tid = (struct ieee80211_ra_tid *) &skb->cb; - ieee80211_start_tx_ba_cb(local_to_hw(local), - ra_tid->ra, ra_tid->tid); - dev_kfree_skb(skb); - break ; - default: /* should never get here! */ - printk(KERN_ERR "%s: Unknown message type (%d)\n", - wiphy_name(local->hw.wiphy), skb->pkt_type); - dev_kfree_skb(skb); - break; - } - } -} - -/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to - * make a prepared TX frame (one that has been given to hw) to look like brand - * new IEEE 802.11 frame that is ready to go through TX processing again. - * Also, tx_packet_data in cb is restored from tx_control. */ -static void ieee80211_remove_tx_extra(struct ieee80211_local *local, - struct ieee80211_key *key, - struct sk_buff *skb, - struct ieee80211_tx_control *control) -{ - int hdrlen, iv_len, mic_len; - struct ieee80211_tx_packet_data *pkt_data; - - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; - pkt_data->ifindex = vif_to_sdata(control->vif)->dev->ifindex; - pkt_data->flags = 0; - if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS) - pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS; - if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT) - pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT; - if (control->flags & IEEE80211_TXCTL_REQUEUE) - pkt_data->flags |= IEEE80211_TXPD_REQUEUE; - if (control->flags & IEEE80211_TXCTL_EAPOL_FRAME) - pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME; - pkt_data->queue = control->queue; - - hdrlen = ieee80211_get_hdrlen_from_skb(skb); - - if (!key) - goto no_key; - - switch (key->conf.alg) { - case ALG_WEP: - iv_len = WEP_IV_LEN; - mic_len = WEP_ICV_LEN; - break; - case ALG_TKIP: - iv_len = TKIP_IV_LEN; - mic_len = TKIP_ICV_LEN; - break; - case ALG_CCMP: - iv_len = CCMP_HDR_LEN; - mic_len = CCMP_MIC_LEN; - break; - default: - goto no_key; - } - - if (skb->len >= mic_len && - !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) - skb_trim(skb, skb->len - mic_len); - if (skb->len >= iv_len && skb->len > hdrlen) { - memmove(skb->data + iv_len, skb->data, hdrlen); - skb_pull(skb, iv_len); - } - -no_key: - { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc = le16_to_cpu(hdr->frame_control); - if ((fc & 0x8C) == 0x88) /* QoS Control Field */ { - fc &= ~IEEE80211_STYPE_QOS_DATA; - hdr->frame_control = cpu_to_le16(fc); - memmove(skb->data + 2, skb->data, hdrlen - 2); - skb_pull(skb, 2); - } - } -} - -void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct sk_buff *skb2; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_local *local = hw_to_local(hw); - u16 frag, type; - struct ieee80211_tx_status_rtap_hdr *rthdr; - struct ieee80211_sub_if_data *sdata; - struct net_device *prev_dev = NULL; - - if (!status) { - printk(KERN_ERR - "%s: ieee80211_tx_status called with NULL status\n", - wiphy_name(local->hw.wiphy)); - dev_kfree_skb(skb); - return; - } - - if (status->excessive_retries) { - struct sta_info *sta; - sta = sta_info_get(local, hdr->addr1); - if (sta) { - if (sta->flags & WLAN_STA_PS) { - /* The STA is in power save mode, so assume - * that this TX packet failed because of that. - */ - status->excessive_retries = 0; - status->flags |= IEEE80211_TX_STATUS_TX_FILTERED; - } - sta_info_put(sta); - } - } - - if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) { - struct sta_info *sta; - sta = sta_info_get(local, hdr->addr1); - if (sta) { - sta->tx_filtered_count++; - - /* Clear the TX filter mask for this STA when sending - * the next packet. If the STA went to power save mode, - * this will happen when it is waking up for the next - * time. */ - sta->clear_dst_mask = 1; - - /* TODO: Is the WLAN_STA_PS flag always set here or is - * the race between RX and TX status causing some - * packets to be filtered out before 80211.o gets an - * update for PS status? This seems to be the case, so - * no changes are likely to be needed. */ - if (sta->flags & WLAN_STA_PS && - skb_queue_len(&sta->tx_filtered) < - STA_MAX_TX_BUFFER) { - ieee80211_remove_tx_extra(local, sta->key, - skb, - &status->control); - skb_queue_tail(&sta->tx_filtered, skb); - } else if (!(sta->flags & WLAN_STA_PS) && - !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) { - /* Software retry the packet once */ - status->control.flags |= IEEE80211_TXCTL_REQUEUE; - ieee80211_remove_tx_extra(local, sta->key, - skb, - &status->control); - dev_queue_xmit(skb); - } else { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: dropped TX " - "filtered frame queue_len=%d " - "PS=%d @%lu\n", - wiphy_name(local->hw.wiphy), - skb_queue_len( - &sta->tx_filtered), - !!(sta->flags & WLAN_STA_PS), - jiffies); - } - dev_kfree_skb(skb); - } - sta_info_put(sta); - return; - } - } else - rate_control_tx_status(local->mdev, skb, status); - - ieee80211_led_tx(local, 0); - - /* SNMP counters - * Fragments are passed to low-level drivers as separate skbs, so these - * are actually fragments, not frames. Update frame counters only for - * the first fragment of the frame. */ - - frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; - type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE; - - if (status->flags & IEEE80211_TX_STATUS_ACK) { - if (frag == 0) { - local->dot11TransmittedFrameCount++; - if (is_multicast_ether_addr(hdr->addr1)) - local->dot11MulticastTransmittedFrameCount++; - if (status->retry_count > 0) - local->dot11RetryCount++; - if (status->retry_count > 1) - local->dot11MultipleRetryCount++; - } - - /* This counter shall be incremented for an acknowledged MPDU - * with an individual address in the address 1 field or an MPDU - * with a multicast address in the address 1 field of type Data - * or Management. */ - if (!is_multicast_ether_addr(hdr->addr1) || - type == IEEE80211_FTYPE_DATA || - type == IEEE80211_FTYPE_MGMT) - local->dot11TransmittedFragmentCount++; - } else { - if (frag == 0) - local->dot11FailedCount++; - } - - /* this was a transmitted frame, but now we want to reuse it */ - skb_orphan(skb); - - /* - * This is a bit racy but we can avoid a lot of work - * with this test... - */ - if (!local->monitors && !local->cooked_mntrs) { - dev_kfree_skb(skb); - return; - } - - /* send frame to monitor interfaces now */ - - if (skb_headroom(skb) < sizeof(*rthdr)) { - printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); - dev_kfree_skb(skb); - return; - } - - rthdr = (struct ieee80211_tx_status_rtap_hdr*) - skb_push(skb, sizeof(*rthdr)); - - memset(rthdr, 0, sizeof(*rthdr)); - rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); - rthdr->hdr.it_present = - cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) | - (1 << IEEE80211_RADIOTAP_DATA_RETRIES)); - - if (!(status->flags & IEEE80211_TX_STATUS_ACK) && - !is_multicast_ether_addr(hdr->addr1)) - rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL); - - if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) && - (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) - rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS); - else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) - rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS); - - rthdr->data_retries = status->retry_count; - - /* XXX: is this sufficient for BPF? */ - skb_set_mac_header(skb, 0); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - memset(skb->cb, 0, sizeof(skb->cb)); - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) { - if (!netif_running(sdata->dev)) - continue; - - if (prev_dev) { - skb2 = skb_clone(skb, GFP_ATOMIC); - if (skb2) { - skb2->dev = prev_dev; - netif_rx(skb2); - } - } - - prev_dev = sdata->dev; - } - } - if (prev_dev) { - skb->dev = prev_dev; - netif_rx(skb); - skb = NULL; - } - rcu_read_unlock(); - dev_kfree_skb(skb); -} -EXPORT_SYMBOL(ieee80211_tx_status); - -struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, - const struct ieee80211_ops *ops) -{ - struct net_device *mdev; - struct ieee80211_local *local; - struct ieee80211_sub_if_data *sdata; - int priv_size; - struct wiphy *wiphy; - - /* Ensure 32-byte alignment of our private data and hw private data. - * We use the wiphy priv data for both our ieee80211_local and for - * the driver's private data - * - * In memory it'll be like this: - * - * +-------------------------+ - * | struct wiphy | - * +-------------------------+ - * | struct ieee80211_local | - * +-------------------------+ - * | driver's private data | - * +-------------------------+ - * - */ - priv_size = ((sizeof(struct ieee80211_local) + - NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) + - priv_data_len; - - wiphy = wiphy_new(&mac80211_config_ops, priv_size); - - if (!wiphy) - return NULL; - - wiphy->privid = mac80211_wiphy_privid; - - local = wiphy_priv(wiphy); - local->hw.wiphy = wiphy; - - local->hw.priv = (char *)local + - ((sizeof(struct ieee80211_local) + - NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); - - BUG_ON(!ops->tx); - BUG_ON(!ops->start); - BUG_ON(!ops->stop); - BUG_ON(!ops->config); - BUG_ON(!ops->add_interface); - BUG_ON(!ops->remove_interface); - BUG_ON(!ops->configure_filter); - local->ops = ops; - - /* for now, mdev needs sub_if_data :/ */ - mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), - "wmaster%d", ether_setup); - if (!mdev) { - wiphy_free(wiphy); - return NULL; - } - - sdata = IEEE80211_DEV_TO_SUB_IF(mdev); - mdev->ieee80211_ptr = &sdata->wdev; - sdata->wdev.wiphy = wiphy; - - local->hw.queues = 1; /* default */ - - local->mdev = mdev; - - local->bridge_packets = 1; - - local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; - local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; - local->short_retry_limit = 7; - local->long_retry_limit = 4; - local->hw.conf.radio_enabled = 1; - - INIT_LIST_HEAD(&local->interfaces); - - INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work); - ieee80211_rx_bss_list_init(mdev); - - sta_info_init(local); - - mdev->hard_start_xmit = ieee80211_master_start_xmit; - mdev->open = ieee80211_master_open; - mdev->stop = ieee80211_master_stop; - mdev->type = ARPHRD_IEEE80211; - mdev->header_ops = &ieee80211_header_ops; - mdev->set_multicast_list = ieee80211_master_set_multicast_list; - - sdata->vif.type = IEEE80211_IF_TYPE_AP; - sdata->dev = mdev; - sdata->local = local; - sdata->u.ap.force_unicast_rateidx = -1; - sdata->u.ap.max_ratectrl_rateidx = -1; - ieee80211_if_sdata_init(sdata); - /* no RCU needed since we're still during init phase */ - list_add_tail(&sdata->list, &local->interfaces); - - tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, - (unsigned long)local); - tasklet_disable(&local->tx_pending_tasklet); - - tasklet_init(&local->tasklet, - ieee80211_tasklet_handler, - (unsigned long) local); - tasklet_disable(&local->tasklet); - - skb_queue_head_init(&local->skb_queue); - skb_queue_head_init(&local->skb_queue_unreliable); - - return local_to_hw(local); -} -EXPORT_SYMBOL(ieee80211_alloc_hw); - -int ieee80211_register_hw(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - const char *name; - int result; - enum ieee80211_band band; - - /* - * generic code guarantees at least one band, - * set this very early because much code assumes - * that hw.conf.channel is assigned - */ - for (band = 0; band < IEEE80211_NUM_BANDS; band++) { - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[band]; - if (sband) { - /* init channel we're on */ - local->hw.conf.channel = - local->oper_channel = - local->scan_channel = &sband->channels[0]; - break; - } - } - - result = wiphy_register(local->hw.wiphy); - if (result < 0) - return result; - - name = wiphy_dev(local->hw.wiphy)->driver->name; - local->hw.workqueue = create_singlethread_workqueue(name); - if (!local->hw.workqueue) { - result = -ENOMEM; - goto fail_workqueue; - } - - /* - * The hardware needs headroom for sending the frame, - * and we need some headroom for passing the frame to monitor - * interfaces, but never both at the same time. - */ - local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, - sizeof(struct ieee80211_tx_status_rtap_hdr)); - - debugfs_hw_add(local); - - local->hw.conf.beacon_int = 1000; - - local->wstats_flags |= local->hw.max_rssi ? - IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID; - local->wstats_flags |= local->hw.max_signal ? - IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID; - local->wstats_flags |= local->hw.max_noise ? - IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID; - if (local->hw.max_rssi < 0 || local->hw.max_noise < 0) - local->wstats_flags |= IW_QUAL_DBM; - - result = sta_info_start(local); - if (result < 0) - goto fail_sta_info; - - rtnl_lock(); - result = dev_alloc_name(local->mdev, local->mdev->name); - if (result < 0) - goto fail_dev; - - memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); - SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy)); - - result = register_netdevice(local->mdev); - if (result < 0) - goto fail_dev; - - ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev)); - ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP); - - result = ieee80211_init_rate_ctrl_alg(local, - hw->rate_control_algorithm); - if (result < 0) { - printk(KERN_DEBUG "%s: Failed to initialize rate control " - "algorithm\n", wiphy_name(local->hw.wiphy)); - goto fail_rate; - } - - result = ieee80211_wep_init(local); - - if (result < 0) { - printk(KERN_DEBUG "%s: Failed to initialize wep\n", - wiphy_name(local->hw.wiphy)); - goto fail_wep; - } - - ieee80211_install_qdisc(local->mdev); - - /* add one default STA interface */ - result = ieee80211_if_add(local->mdev, "wlan%d", NULL, - IEEE80211_IF_TYPE_STA); - if (result) - printk(KERN_WARNING "%s: Failed to add default virtual iface\n", - wiphy_name(local->hw.wiphy)); - - local->reg_state = IEEE80211_DEV_REGISTERED; - rtnl_unlock(); - - ieee80211_led_init(local); - - return 0; - -fail_wep: - rate_control_deinitialize(local); -fail_rate: - ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev)); - unregister_netdevice(local->mdev); -fail_dev: - rtnl_unlock(); - sta_info_stop(local); -fail_sta_info: - debugfs_hw_del(local); - destroy_workqueue(local->hw.workqueue); -fail_workqueue: - wiphy_unregister(local->hw.wiphy); - return result; -} -EXPORT_SYMBOL(ieee80211_register_hw); - -void ieee80211_unregister_hw(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata, *tmp; - - tasklet_kill(&local->tx_pending_tasklet); - tasklet_kill(&local->tasklet); - - rtnl_lock(); - - BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED); - - local->reg_state = IEEE80211_DEV_UNREGISTERED; - - /* - * At this point, interface list manipulations are fine - * because the driver cannot be handing us frames any - * more and the tasklet is killed. - */ - - /* - * First, we remove all non-master interfaces. Do this because they - * may have bss pointer dependency on the master, and when we free - * the master these would be freed as well, breaking our list - * iteration completely. - */ - list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) { - if (sdata->dev == local->mdev) - continue; - list_del(&sdata->list); - __ieee80211_if_del(local, sdata); - } - - /* then, finally, remove the master interface */ - __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev)); - - rtnl_unlock(); - - ieee80211_rx_bss_list_deinit(local->mdev); - ieee80211_clear_tx_pending(local); - sta_info_stop(local); - rate_control_deinitialize(local); - debugfs_hw_del(local); - - if (skb_queue_len(&local->skb_queue) - || skb_queue_len(&local->skb_queue_unreliable)) - printk(KERN_WARNING "%s: skb_queue not empty\n", - wiphy_name(local->hw.wiphy)); - skb_queue_purge(&local->skb_queue); - skb_queue_purge(&local->skb_queue_unreliable); - - destroy_workqueue(local->hw.workqueue); - wiphy_unregister(local->hw.wiphy); - ieee80211_wep_free(local); - ieee80211_led_exit(local); -} -EXPORT_SYMBOL(ieee80211_unregister_hw); - -void ieee80211_free_hw(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - - ieee80211_if_free(local->mdev); - wiphy_free(local->hw.wiphy); -} -EXPORT_SYMBOL(ieee80211_free_hw); - -static int __init ieee80211_init(void) -{ - struct sk_buff *skb; - int ret; - - BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb)); - - ret = rc80211_simple_init(); - if (ret) - goto out; - - ret = rc80211_pid_init(); - if (ret) - goto out_cleanup_simple; - - ret = ieee80211_wme_register(); - if (ret) { - printk(KERN_DEBUG "ieee80211_init: failed to " - "initialize WME (err=%d)\n", ret); - goto out_cleanup_pid; - } - - ieee80211_debugfs_netdev_init(); - - return 0; - - out_cleanup_pid: - rc80211_pid_exit(); - out_cleanup_simple: - rc80211_simple_exit(); - out: - return ret; -} - -static void __exit ieee80211_exit(void) -{ - rc80211_simple_exit(); - rc80211_pid_exit(); - - ieee80211_wme_unregister(); - ieee80211_debugfs_netdev_exit(); -} - - -subsys_initcall(ieee80211_init); -module_exit(ieee80211_exit); - -MODULE_DESCRIPTION("IEEE 802.11 subsystem"); -MODULE_LICENSE("GPL"); diff --git a/package/mac80211/src/net/mac80211/ieee80211_i.h b/package/mac80211/src/net/mac80211/ieee80211_i.h deleted file mode 100644 index 1b4a449703..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_i.h +++ /dev/null @@ -1,792 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef IEEE80211_I_H -#define IEEE80211_I_H - -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/if_ether.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/workqueue.h> -#include <linux/types.h> -#include <linux/spinlock.h> -#include <linux/etherdevice.h> -#include <net/wireless.h> -#include "ieee80211_key.h" -#include "sta_info.h" - -/* ieee80211.o internal definitions, etc. These are not included into - * low-level drivers. */ - -#ifndef ETH_P_PAE -#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */ -#endif /* ETH_P_PAE */ - -#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) - -struct ieee80211_local; - -#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3) - -/* Maximum number of broadcast/multicast frames to buffer when some of the - * associated stations are using power saving. */ -#define AP_MAX_BC_BUFFER 128 - -/* Maximum number of frames buffered to all STAs, including multicast frames. - * Note: increasing this limit increases the potential memory requirement. Each - * frame can be up to about 2 kB long. */ -#define TOTAL_MAX_TX_BUFFER 512 - -/* Required encryption head and tailroom */ -#define IEEE80211_ENCRYPT_HEADROOM 8 -#define IEEE80211_ENCRYPT_TAILROOM 12 - -/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent - * reception of at least three fragmented frames. This limit can be increased - * by changing this define, at the cost of slower frame reassembly and - * increased memory use (about 2 kB of RAM per entry). */ -#define IEEE80211_FRAGMENT_MAX 4 - -struct ieee80211_fragment_entry { - unsigned long first_frag_time; - unsigned int seq; - unsigned int rx_queue; - unsigned int last_frag; - unsigned int extra_len; - struct sk_buff_head skb_list; - int ccmp; /* Whether fragments were encrypted with CCMP */ - u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ -}; - - -struct ieee80211_sta_bss { - struct list_head list; - struct ieee80211_sta_bss *hnext; - atomic_t users; - - u8 bssid[ETH_ALEN]; - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; - u16 capability; /* host byte order */ - enum ieee80211_band band; - int freq; - int rssi, signal, noise; - u8 *wpa_ie; - size_t wpa_ie_len; - u8 *rsn_ie; - size_t rsn_ie_len; - u8 *wmm_ie; - size_t wmm_ie_len; - u8 *ht_ie; - size_t ht_ie_len; -#define IEEE80211_MAX_SUPP_RATES 32 - u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; - size_t supp_rates_len; - int beacon_int; - u64 timestamp; - - int probe_resp; - unsigned long last_update; - - /* during assocation, we save an ERP value from a probe response so - * that we can feed ERP info to the driver when handling the - * association completes. these fields probably won't be up-to-date - * otherwise, you probably don't want to use them. */ - int has_erp_value; - u8 erp_value; -}; - - -typedef unsigned __bitwise__ ieee80211_tx_result; -#define TX_CONTINUE ((__force ieee80211_tx_result) 0u) -#define TX_DROP ((__force ieee80211_tx_result) 1u) -#define TX_QUEUED ((__force ieee80211_tx_result) 2u) - -typedef unsigned __bitwise__ ieee80211_rx_result; -#define RX_CONTINUE ((__force ieee80211_rx_result) 0u) -#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) -#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) -#define RX_QUEUED ((__force ieee80211_rx_result) 3u) - - -/* flags used in struct ieee80211_txrx_data.flags */ -/* whether the MSDU was fragmented */ -#define IEEE80211_TXRXD_FRAGMENTED BIT(0) -#define IEEE80211_TXRXD_TXUNICAST BIT(1) -#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2) -#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3) -#define IEEE80211_TXRXD_RXIN_SCAN BIT(4) -/* frame is destined to interface currently processed (incl. multicast frames) */ -#define IEEE80211_TXRXD_RXRA_MATCH BIT(5) -#define IEEE80211_TXRXD_TX_INJECTED BIT(6) -#define IEEE80211_TXRXD_RX_AMSDU BIT(7) -#define IEEE80211_TXRXD_RX_CMNTR_REPORTED BIT(8) -struct ieee80211_txrx_data { - struct sk_buff *skb; - struct net_device *dev; - struct ieee80211_local *local; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - u16 fc, ethertype; - struct ieee80211_key *key; - unsigned int flags; - union { - struct { - struct ieee80211_tx_control *control; - struct ieee80211_channel *channel; - struct ieee80211_rate *rate; - /* use this rate (if set) for last fragment; rate can - * be set to lower rate for the first fragments, e.g., - * when using CTS protection with IEEE 802.11g. */ - struct ieee80211_rate *last_frag_rate; - - /* Extra fragments (in addition to the first fragment - * in skb) */ - int num_extra_frag; - struct sk_buff **extra_frag; - } tx; - struct { - struct ieee80211_rx_status *status; - struct ieee80211_rate *rate; - int sent_ps_buffered; - int queue; - int load; - u32 tkip_iv32; - u16 tkip_iv16; - } rx; - } u; -}; - -/* flags used in struct ieee80211_tx_packet_data.flags */ -#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0) -#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1) -#define IEEE80211_TXPD_REQUEUE BIT(2) -#define IEEE80211_TXPD_EAPOL_FRAME BIT(3) -#define IEEE80211_TXPD_AMPDU BIT(4) -/* Stored in sk_buff->cb */ -struct ieee80211_tx_packet_data { - int ifindex; - unsigned long jiffies; - unsigned int flags; - u8 queue; -}; - -struct ieee80211_tx_stored_packet { - struct ieee80211_tx_control control; - struct sk_buff *skb; - int num_extra_frag; - struct sk_buff **extra_frag; - struct ieee80211_rate *last_frag_rate; - unsigned int last_frag_rate_ctrl_probe; -}; - -struct beacon_data { - u8 *head, *tail; - int head_len, tail_len; - int dtim_period; -}; - -struct ieee80211_if_ap { - struct beacon_data *beacon; - - struct list_head vlans; - - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; - - /* yes, this looks ugly, but guarantees that we can later use - * bitmap_empty :) - * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */ - u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]; - atomic_t num_sta_ps; /* number of stations in PS mode */ - struct sk_buff_head ps_bc_buf; - int dtim_count; - int force_unicast_rateidx; /* forced TX rateidx for unicast frames */ - int max_ratectrl_rateidx; /* max TX rateidx for rate control */ - int num_beacons; /* number of TXed beacon frames for this BSS */ -}; - -struct ieee80211_if_wds { - u8 remote_addr[ETH_ALEN]; - struct sta_info *sta; -}; - -struct ieee80211_if_vlan { - struct ieee80211_sub_if_data *ap; - struct list_head list; -}; - -/* flags used in struct ieee80211_if_sta.flags */ -#define IEEE80211_STA_SSID_SET BIT(0) -#define IEEE80211_STA_BSSID_SET BIT(1) -#define IEEE80211_STA_PREV_BSSID_SET BIT(2) -#define IEEE80211_STA_AUTHENTICATED BIT(3) -#define IEEE80211_STA_ASSOCIATED BIT(4) -#define IEEE80211_STA_PROBEREQ_POLL BIT(5) -#define IEEE80211_STA_CREATE_IBSS BIT(6) -#define IEEE80211_STA_MIXED_CELL BIT(7) -#define IEEE80211_STA_WMM_ENABLED BIT(8) -#define IEEE80211_STA_AUTO_SSID_SEL BIT(10) -#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11) -#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12) -#define IEEE80211_STA_PRIVACY_INVOKED BIT(13) -struct ieee80211_if_sta { - enum { - IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, - IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, - IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED - } state; - struct timer_list timer; - struct work_struct work; - u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; - u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; - size_t scan_ssid_len; - u16 aid; - u16 ap_capab, capab; - u8 *extra_ie; /* to be added to the end of AssocReq */ - size_t extra_ie_len; - - /* The last AssocReq/Resp IEs */ - u8 *assocreq_ies, *assocresp_ies; - size_t assocreq_ies_len, assocresp_ies_len; - - int auth_tries, assoc_tries; - - unsigned int flags; -#define IEEE80211_STA_REQ_SCAN 0 -#define IEEE80211_STA_REQ_AUTH 1 -#define IEEE80211_STA_REQ_RUN 2 - unsigned long request; - struct sk_buff_head skb_queue; - - unsigned long last_probe; - -#define IEEE80211_AUTH_ALG_OPEN BIT(0) -#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1) -#define IEEE80211_AUTH_ALG_LEAP BIT(2) - unsigned int auth_algs; /* bitfield of allowed auth algs */ - int auth_alg; /* currently used IEEE 802.11 authentication algorithm */ - int auth_transaction; - - unsigned long ibss_join_req; - struct sk_buff *probe_resp; /* ProbeResp template for IBSS */ - u32 supp_rates_bits[IEEE80211_NUM_BANDS]; - - int wmm_last_param_set; -}; - - -/* flags used in struct ieee80211_sub_if_data.flags */ -#define IEEE80211_SDATA_ALLMULTI BIT(0) -#define IEEE80211_SDATA_PROMISC BIT(1) -#define IEEE80211_SDATA_USERSPACE_MLME BIT(2) -#define IEEE80211_SDATA_OPERATING_GMODE BIT(3) -struct ieee80211_sub_if_data { - struct list_head list; - - struct wireless_dev wdev; - - /* keys */ - struct list_head key_list; - - struct net_device *dev; - struct ieee80211_local *local; - - unsigned int flags; - - int drop_unencrypted; - - /* - * basic rates of this AP or the AP we're associated to - */ - u64 basic_rates; - - u16 sequence; - - /* Fragment table for host-based reassembly */ - struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; - unsigned int fragment_next; - -#define NUM_DEFAULT_KEYS 4 - struct ieee80211_key *keys[NUM_DEFAULT_KEYS]; - struct ieee80211_key *default_key; - - /* - * BSS configuration for this interface. - * - * FIXME: I feel bad putting this here when we already have a - * bss pointer, but the bss pointer is just wrong when - * you have multiple virtual STA mode interfaces... - * This needs to be fixed. - */ - struct ieee80211_bss_conf bss_conf; - struct ieee80211_if_ap *bss; /* BSS that this device belongs to */ - - union { - struct ieee80211_if_ap ap; - struct ieee80211_if_wds wds; - struct ieee80211_if_vlan vlan; - struct ieee80211_if_sta sta; - u32 mntr_flags; - } u; - int channel_use; - int channel_use_raw; - -#ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *debugfsdir; - union { - struct { - struct dentry *channel_use; - struct dentry *drop_unencrypted; - struct dentry *state; - struct dentry *bssid; - struct dentry *prev_bssid; - struct dentry *ssid_len; - struct dentry *aid; - struct dentry *ap_capab; - struct dentry *capab; - struct dentry *extra_ie_len; - struct dentry *auth_tries; - struct dentry *assoc_tries; - struct dentry *auth_algs; - struct dentry *auth_alg; - struct dentry *auth_transaction; - struct dentry *flags; - } sta; - struct { - struct dentry *channel_use; - struct dentry *drop_unencrypted; - struct dentry *num_sta_ps; - struct dentry *dtim_count; - struct dentry *num_beacons; - struct dentry *force_unicast_rateidx; - struct dentry *max_ratectrl_rateidx; - struct dentry *num_buffered_multicast; - } ap; - struct { - struct dentry *channel_use; - struct dentry *drop_unencrypted; - struct dentry *peer; - } wds; - struct { - struct dentry *channel_use; - struct dentry *drop_unencrypted; - } vlan; - struct { - struct dentry *mode; - } monitor; - struct dentry *default_key; - } debugfs; -#endif - /* must be last, dynamically sized area in this! */ - struct ieee80211_vif vif; -}; - -static inline -struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) -{ - return container_of(p, struct ieee80211_sub_if_data, vif); -} - -#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) - -enum { - IEEE80211_RX_MSG = 1, - IEEE80211_TX_STATUS_MSG = 2, - IEEE80211_DELBA_MSG = 3, - IEEE80211_ADDBA_MSG = 4, -}; - -struct ieee80211_local { - /* embed the driver visible part. - * don't cast (use the static inlines below), but we keep - * it first anyway so they become a no-op */ - struct ieee80211_hw hw; - - const struct ieee80211_ops *ops; - - struct net_device *mdev; /* wmaster# - "master" 802.11 device */ - int open_count; - int monitors, cooked_mntrs; - /* number of interfaces with corresponding FIF_ flags */ - int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss; - unsigned int filter_flags; /* FIF_* */ - struct iw_statistics wstats; - u8 wstats_flags; - int tx_headroom; /* required headroom for hardware/radiotap */ - - enum { - IEEE80211_DEV_UNINITIALIZED = 0, - IEEE80211_DEV_REGISTERED, - IEEE80211_DEV_UNREGISTERED, - } reg_state; - - /* Tasklet and skb queue to process calls from IRQ mode. All frames - * added to skb_queue will be processed, but frames in - * skb_queue_unreliable may be dropped if the total length of these - * queues increases over the limit. */ -#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 - struct tasklet_struct tasklet; - struct sk_buff_head skb_queue; - struct sk_buff_head skb_queue_unreliable; - - /* Station data structures */ - rwlock_t sta_lock; /* protects STA data structures */ - int num_sta; /* number of stations in sta_list */ - struct list_head sta_list; - struct sta_info *sta_hash[STA_HASH_SIZE]; - struct timer_list sta_cleanup; - - unsigned long state[NUM_TX_DATA_QUEUES_AMPDU]; - struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU]; - struct tasklet_struct tx_pending_tasklet; - - /* number of interfaces with corresponding IFF_ flags */ - atomic_t iff_allmultis, iff_promiscs; - - struct rate_control_ref *rate_ctrl; - - int rts_threshold; - int fragmentation_threshold; - int short_retry_limit; /* dot11ShortRetryLimit */ - int long_retry_limit; /* dot11LongRetryLimit */ - - struct crypto_blkcipher *wep_tx_tfm; - struct crypto_blkcipher *wep_rx_tfm; - u32 wep_iv; - - int bridge_packets; /* bridge packets between associated stations and - * deliver multicast frames both back to wireless - * media and to the local net stack */ - - struct list_head interfaces; - - bool sta_sw_scanning; - bool sta_hw_scanning; - int scan_channel_idx; - enum ieee80211_band scan_band; - - enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; - unsigned long last_scan_completed; - struct delayed_work scan_work; - struct net_device *scan_dev; - struct ieee80211_channel *oper_channel, *scan_channel; - u8 scan_ssid[IEEE80211_MAX_SSID_LEN]; - size_t scan_ssid_len; - struct list_head sta_bss_list; - struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE]; - spinlock_t sta_bss_lock; - - /* SNMP counters */ - /* dot11CountersTable */ - u32 dot11TransmittedFragmentCount; - u32 dot11MulticastTransmittedFrameCount; - u32 dot11FailedCount; - u32 dot11RetryCount; - u32 dot11MultipleRetryCount; - u32 dot11FrameDuplicateCount; - u32 dot11ReceivedFragmentCount; - u32 dot11MulticastReceivedFrameCount; - u32 dot11TransmittedFrameCount; - u32 dot11WEPUndecryptableCount; - -#ifdef CONFIG_MAC80211_LEDS - int tx_led_counter, rx_led_counter; - struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; - char tx_led_name[32], rx_led_name[32], - assoc_led_name[32], radio_led_name[32]; -#endif - - u32 channel_use; - u32 channel_use_raw; - -#ifdef CONFIG_MAC80211_DEBUGFS - struct work_struct sta_debugfs_add; -#endif - -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - /* TX/RX handler statistics */ - unsigned int tx_handlers_drop; - unsigned int tx_handlers_queued; - unsigned int tx_handlers_drop_unencrypted; - unsigned int tx_handlers_drop_fragment; - unsigned int tx_handlers_drop_wep; - unsigned int tx_handlers_drop_not_assoc; - unsigned int tx_handlers_drop_unauth_port; - unsigned int rx_handlers_drop; - unsigned int rx_handlers_queued; - unsigned int rx_handlers_drop_nullfunc; - unsigned int rx_handlers_drop_defrag; - unsigned int rx_handlers_drop_short; - unsigned int rx_handlers_drop_passive_scan; - unsigned int tx_expand_skb_head; - unsigned int tx_expand_skb_head_cloned; - unsigned int rx_expand_skb_head; - unsigned int rx_expand_skb_head2; - unsigned int rx_handlers_fragments; - unsigned int tx_status_drop; - unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; - unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; -#define I802_DEBUG_INC(c) (c)++ -#else /* CONFIG_MAC80211_DEBUG_COUNTERS */ -#define I802_DEBUG_INC(c) do { } while (0) -#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ - - - int total_ps_buffered; /* total number of all buffered unicast and - * multicast packets for power saving stations - */ - int wifi_wme_noack_test; - unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ - -#ifdef CONFIG_MAC80211_DEBUGFS - struct local_debugfsdentries { - struct dentry *frequency; - struct dentry *antenna_sel_tx; - struct dentry *antenna_sel_rx; - struct dentry *bridge_packets; - struct dentry *rts_threshold; - struct dentry *fragmentation_threshold; - struct dentry *short_retry_limit; - struct dentry *long_retry_limit; - struct dentry *total_ps_buffered; - struct dentry *wep_iv; - struct dentry *statistics; - struct local_debugfsdentries_statsdentries { - struct dentry *transmitted_fragment_count; - struct dentry *multicast_transmitted_frame_count; - struct dentry *failed_count; - struct dentry *retry_count; - struct dentry *multiple_retry_count; - struct dentry *frame_duplicate_count; - struct dentry *received_fragment_count; - struct dentry *multicast_received_frame_count; - struct dentry *transmitted_frame_count; - struct dentry *wep_undecryptable_count; - struct dentry *num_scans; -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - struct dentry *tx_handlers_drop; - struct dentry *tx_handlers_queued; - struct dentry *tx_handlers_drop_unencrypted; - struct dentry *tx_handlers_drop_fragment; - struct dentry *tx_handlers_drop_wep; - struct dentry *tx_handlers_drop_not_assoc; - struct dentry *tx_handlers_drop_unauth_port; - struct dentry *rx_handlers_drop; - struct dentry *rx_handlers_queued; - struct dentry *rx_handlers_drop_nullfunc; - struct dentry *rx_handlers_drop_defrag; - struct dentry *rx_handlers_drop_short; - struct dentry *rx_handlers_drop_passive_scan; - struct dentry *tx_expand_skb_head; - struct dentry *tx_expand_skb_head_cloned; - struct dentry *rx_expand_skb_head; - struct dentry *rx_expand_skb_head2; - struct dentry *rx_handlers_fragments; - struct dentry *tx_status_drop; - struct dentry *wme_tx_queue; - struct dentry *wme_rx_queue; -#endif - struct dentry *dot11ACKFailureCount; - struct dentry *dot11RTSFailureCount; - struct dentry *dot11FCSErrorCount; - struct dentry *dot11RTSSuccessCount; - } stats; - struct dentry *stations; - struct dentry *keys; - } debugfs; -#endif -}; - -/* this struct represents 802.11n's RA/TID combination */ -struct ieee80211_ra_tid { - u8 ra[ETH_ALEN]; - u16 tid; -}; - -static inline struct ieee80211_local *hw_to_local( - struct ieee80211_hw *hw) -{ - return container_of(hw, struct ieee80211_local, hw); -} - -static inline struct ieee80211_hw *local_to_hw( - struct ieee80211_local *local) -{ - return &local->hw; -} - -enum ieee80211_link_state_t { - IEEE80211_LINK_STATE_XOFF = 0, - IEEE80211_LINK_STATE_PENDING, -}; - -struct sta_attribute { - struct attribute attr; - ssize_t (*show)(const struct sta_info *, char *buf); - ssize_t (*store)(struct sta_info *, const char *buf, size_t count); -}; - -static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid) -{ - /* - * This format has been mandated by the IEEE specifications, - * so this line may not be changed to use the __set_bit() format. - */ - bss->tim[aid / 8] |= (1 << (aid % 8)); -} - -static inline void bss_tim_set(struct ieee80211_local *local, - struct ieee80211_if_ap *bss, u16 aid) -{ - read_lock_bh(&local->sta_lock); - __bss_tim_set(bss, aid); - read_unlock_bh(&local->sta_lock); -} - -static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid) -{ - /* - * This format has been mandated by the IEEE specifications, - * so this line may not be changed to use the __clear_bit() format. - */ - bss->tim[aid / 8] &= ~(1 << (aid % 8)); -} - -static inline void bss_tim_clear(struct ieee80211_local *local, - struct ieee80211_if_ap *bss, u16 aid) -{ - read_lock_bh(&local->sta_lock); - __bss_tim_clear(bss, aid); - read_unlock_bh(&local->sta_lock); -} - -static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) -{ - return compare_ether_addr(raddr, addr) == 0 || - is_broadcast_ether_addr(raddr); -} - - -/* ieee80211.c */ -int ieee80211_hw_config(struct ieee80211_local *local); -int ieee80211_if_config(struct net_device *dev); -int ieee80211_if_config_beacon(struct net_device *dev); -void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx); -int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr); -void ieee80211_if_setup(struct net_device *dev); -int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht, - struct ieee80211_ht_info *req_ht_cap, - struct ieee80211_ht_bss_info *req_bss_cap); - -/* ieee80211_ioctl.c */ -extern const struct iw_handler_def ieee80211_iw_handler_def; - - -/* Least common multiple of the used rates (in 100 kbps). This is used to - * calculate rate_inv values for each rate so that only integers are needed. */ -#define CHAN_UTIL_RATE_LCM 95040 -/* 1 usec is 1/8 * (95040/10) = 1188 */ -#define CHAN_UTIL_PER_USEC 1188 -/* Amount of bits to shift the result right to scale the total utilization - * to values that will not wrap around 32-bit integers. */ -#define CHAN_UTIL_SHIFT 9 -/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1): - * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the - * raw value with about 23 should give utilization in 10th of a percentage - * (1/1000). However, utilization is only estimated and not all intervals - * between frames etc. are calculated. 18 seems to give numbers that are closer - * to the real maximum. */ -#define CHAN_UTIL_PER_10MS 18 -#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC) -#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC) - - -/* ieee80211_ioctl.c */ -int ieee80211_set_compression(struct ieee80211_local *local, - struct net_device *dev, struct sta_info *sta); -int ieee80211_set_freq(struct ieee80211_local *local, int freq); -/* ieee80211_sta.c */ -void ieee80211_sta_timer(unsigned long data); -void ieee80211_sta_work(struct work_struct *work); -void ieee80211_sta_scan_work(struct work_struct *work); -void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); -int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len); -int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len); -int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid); -int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len); -void ieee80211_sta_req_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta); -int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); -ieee80211_rx_result ieee80211_sta_rx_scan( - struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status); -void ieee80211_rx_bss_list_init(struct net_device *dev); -void ieee80211_rx_bss_list_deinit(struct net_device *dev); -int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len); -struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, - struct sk_buff *skb, u8 *bssid, - u8 *addr); -int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason); -int ieee80211_sta_disassociate(struct net_device *dev, u16 reason); -void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, - u32 changed); -void ieee80211_reset_erp_info(struct net_device *dev); -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info); -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, - struct ieee80211_ht_bss_info *bss_info); -void ieee80211_send_addba_request(struct net_device *dev, const u8 *da, - u16 tid, u8 dialog_token, u16 start_seq_num, - u16 agg_size, u16 timeout); -void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid, - u16 initiator, u16 reason_code); -void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da, - u16 tid, u16 initiator, u16 reason); -void sta_rx_agg_session_timer_expired(unsigned long data); -void sta_addba_resp_timer_expired(unsigned long data); -/* ieee80211_iface.c */ -int ieee80211_if_add(struct net_device *dev, const char *name, - struct net_device **new_dev, int type); -void ieee80211_if_set_type(struct net_device *dev, int type); -void ieee80211_if_reinit(struct net_device *dev); -void __ieee80211_if_del(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata); -int ieee80211_if_remove(struct net_device *dev, const char *name, int id); -void ieee80211_if_free(struct net_device *dev); -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); - -/* tx handling */ -void ieee80211_clear_tx_pending(struct ieee80211_local *local); -void ieee80211_tx_pending(unsigned long data); -int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev); -int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev); -int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev); - -/* utility functions/constants */ -extern void *mac80211_wiphy_privid; /* for wiphy privid */ -extern const unsigned char rfc1042_header[6]; -extern const unsigned char bridge_tunnel_header[6]; -u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, - enum ieee80211_if_types type); -int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, - int rate, int erp, int short_preamble); -void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx, - struct ieee80211_hdr *hdr); - -#endif /* IEEE80211_I_H */ diff --git a/package/mac80211/src/net/mac80211/ieee80211_iface.c b/package/mac80211/src/net/mac80211/ieee80211_iface.c deleted file mode 100644 index f66f1ddc3f..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_iface.c +++ /dev/null @@ -1,302 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/kernel.h> -#include <linux/if_arp.h> -#include <linux/netdevice.h> -#include <linux/rtnetlink.h> -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "sta_info.h" -#include "debugfs_netdev.h" - -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata) -{ - int i; - - /* Default values for sub-interface parameters */ - sdata->drop_unencrypted = 0; - for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) - skb_queue_head_init(&sdata->fragments[i].skb_list); - - INIT_LIST_HEAD(&sdata->key_list); -} - -static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata) -{ - int i; - - for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) { - __skb_queue_purge(&sdata->fragments[i].skb_list); - } -} - -/* Must be called with rtnl lock held. */ -int ieee80211_if_add(struct net_device *dev, const char *name, - struct net_device **new_dev, int type) -{ - struct net_device *ndev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = NULL; - int ret; - - ASSERT_RTNL(); - ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, - name, ieee80211_if_setup); - if (!ndev) - return -ENOMEM; - - ret = dev_alloc_name(ndev, ndev->name); - if (ret < 0) - goto fail; - - memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN); - ndev->base_addr = dev->base_addr; - ndev->irq = dev->irq; - ndev->mem_start = dev->mem_start; - ndev->mem_end = dev->mem_end; - SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy)); - - sdata = IEEE80211_DEV_TO_SUB_IF(ndev); - ndev->ieee80211_ptr = &sdata->wdev; - sdata->wdev.wiphy = local->hw.wiphy; - sdata->vif.type = IEEE80211_IF_TYPE_AP; - sdata->dev = ndev; - sdata->local = local; - ieee80211_if_sdata_init(sdata); - - ret = register_netdevice(ndev); - if (ret) - goto fail; - - ieee80211_debugfs_add_netdev(sdata); - ieee80211_if_set_type(ndev, type); - - /* we're under RTNL so all this is fine */ - if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) { - __ieee80211_if_del(local, sdata); - return -ENODEV; - } - list_add_tail_rcu(&sdata->list, &local->interfaces); - - if (new_dev) - *new_dev = ndev; - - return 0; - -fail: - free_netdev(ndev); - return ret; -} - -void ieee80211_if_set_type(struct net_device *dev, int type) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int oldtype = sdata->vif.type; - - /* - * We need to call this function on the master interface - * which already has a hard_start_xmit routine assigned - * which must not be changed. - */ - if (dev != sdata->local->mdev) - dev->hard_start_xmit = ieee80211_subif_start_xmit; - - /* - * Called even when register_netdevice fails, it would - * oops if assigned before initialising the rest. - */ - dev->uninit = ieee80211_if_reinit; - - /* most have no BSS pointer */ - sdata->bss = NULL; - sdata->vif.type = type; - - sdata->basic_rates = 0; - - switch (type) { - case IEEE80211_IF_TYPE_WDS: - /* nothing special */ - break; - case IEEE80211_IF_TYPE_VLAN: - sdata->u.vlan.ap = NULL; - break; - case IEEE80211_IF_TYPE_AP: - sdata->u.ap.force_unicast_rateidx = -1; - sdata->u.ap.max_ratectrl_rateidx = -1; - skb_queue_head_init(&sdata->u.ap.ps_bc_buf); - sdata->bss = &sdata->u.ap; - INIT_LIST_HEAD(&sdata->u.ap.vlans); - break; - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: { - struct ieee80211_sub_if_data *msdata; - struct ieee80211_if_sta *ifsta; - - ifsta = &sdata->u.sta; - INIT_WORK(&ifsta->work, ieee80211_sta_work); - setup_timer(&ifsta->timer, ieee80211_sta_timer, - (unsigned long) sdata); - skb_queue_head_init(&ifsta->skb_queue); - - ifsta->capab = WLAN_CAPABILITY_ESS; - ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN | - IEEE80211_AUTH_ALG_SHARED_KEY; - ifsta->flags |= IEEE80211_STA_CREATE_IBSS | - IEEE80211_STA_WMM_ENABLED | - IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; - - msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev); - sdata->bss = &msdata->u.ap; - break; - } - case IEEE80211_IF_TYPE_MNTR: - dev->type = ARPHRD_IEEE80211_RADIOTAP; - dev->hard_start_xmit = ieee80211_monitor_start_xmit; - sdata->u.mntr_flags = MONITOR_FLAG_CONTROL | - MONITOR_FLAG_OTHER_BSS; - break; - default: - printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x", - dev->name, __FUNCTION__, type); - } - ieee80211_debugfs_change_if_type(sdata, oldtype); -} - -/* Must be called with rtnl lock held. */ -void ieee80211_if_reinit(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta; - struct sk_buff *skb; - - ASSERT_RTNL(); - - ieee80211_free_keys(sdata); - - ieee80211_if_sdata_deinit(sdata); - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_INVALID: - /* cannot happen */ - WARN_ON(1); - break; - case IEEE80211_IF_TYPE_AP: { - /* Remove all virtual interfaces that use this BSS - * as their sdata->bss */ - struct ieee80211_sub_if_data *tsdata, *n; - - list_for_each_entry_safe(tsdata, n, &local->interfaces, list) { - if (tsdata != sdata && tsdata->bss == &sdata->u.ap) { - printk(KERN_DEBUG "%s: removing virtual " - "interface %s because its BSS interface" - " is being removed\n", - sdata->dev->name, tsdata->dev->name); - list_del_rcu(&tsdata->list); - /* - * We have lots of time and can afford - * to sync for each interface - */ - synchronize_rcu(); - __ieee80211_if_del(local, tsdata); - } - } - - kfree(sdata->u.ap.beacon); - - while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) { - local->total_ps_buffered--; - dev_kfree_skb(skb); - } - - break; - } - case IEEE80211_IF_TYPE_WDS: - sta = sta_info_get(local, sdata->u.wds.remote_addr); - if (sta) { - sta_info_free(sta); - sta_info_put(sta); - } else { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Someone had deleted my STA " - "entry for the WDS link\n", dev->name); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - } - break; - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - kfree(sdata->u.sta.extra_ie); - sdata->u.sta.extra_ie = NULL; - kfree(sdata->u.sta.assocreq_ies); - sdata->u.sta.assocreq_ies = NULL; - kfree(sdata->u.sta.assocresp_ies); - sdata->u.sta.assocresp_ies = NULL; - if (sdata->u.sta.probe_resp) { - dev_kfree_skb(sdata->u.sta.probe_resp); - sdata->u.sta.probe_resp = NULL; - } - - break; - case IEEE80211_IF_TYPE_MNTR: - dev->type = ARPHRD_ETHER; - break; - case IEEE80211_IF_TYPE_VLAN: - sdata->u.vlan.ap = NULL; - break; - } - - /* remove all STAs that are bound to this virtual interface */ - sta_info_flush(local, dev); - - memset(&sdata->u, 0, sizeof(sdata->u)); - ieee80211_if_sdata_init(sdata); -} - -/* Must be called with rtnl lock held. */ -void __ieee80211_if_del(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata) -{ - struct net_device *dev = sdata->dev; - - ieee80211_debugfs_remove_netdev(sdata); - unregister_netdevice(dev); - /* Except master interface, the net_device will be freed by - * net_device->destructor (i. e. ieee80211_if_free). */ -} - -/* Must be called with rtnl lock held. */ -int ieee80211_if_remove(struct net_device *dev, const char *name, int id) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata, *n; - - ASSERT_RTNL(); - - list_for_each_entry_safe(sdata, n, &local->interfaces, list) { - if ((sdata->vif.type == id || id == -1) && - strcmp(name, sdata->dev->name) == 0 && - sdata->dev != local->mdev) { - list_del_rcu(&sdata->list); - synchronize_rcu(); - __ieee80211_if_del(local, sdata); - return 0; - } - } - return -ENODEV; -} - -void ieee80211_if_free(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - ieee80211_if_sdata_deinit(sdata); - free_netdev(dev); -} diff --git a/package/mac80211/src/net/mac80211/ieee80211_ioctl.c b/package/mac80211/src/net/mac80211/ieee80211_ioctl.c deleted file mode 100644 index 54ad07aafe..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_ioctl.c +++ /dev/null @@ -1,1143 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/if_arp.h> -#include <linux/wireless.h> -#include <net/iw_handler.h> -#include <asm/uaccess.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "ieee80211_led.h" -#include "ieee80211_rate.h" -#include "wpa.h" -#include "aes_ccm.h" - - -static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, - int idx, int alg, int remove, - int set_tx_key, const u8 *_key, - size_t key_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int ret = 0; - struct sta_info *sta; - struct ieee80211_key *key; - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (idx < 0 || idx >= NUM_DEFAULT_KEYS) { - printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n", - dev->name, idx); - return -EINVAL; - } - - if (is_broadcast_ether_addr(sta_addr)) { - sta = NULL; - key = sdata->keys[idx]; - } else { - set_tx_key = 0; - /* - * According to the standard, the key index of a pairwise - * key must be zero. However, some AP are broken when it - * comes to WEP key indices, so we work around this. - */ - if (idx != 0 && alg != ALG_WEP) { - printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for " - "individual key\n", dev->name); - return -EINVAL; - } - - sta = sta_info_get(local, sta_addr); - if (!sta) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - DECLARE_MAC_BUF(mac); - printk(KERN_DEBUG "%s: set_encrypt - unknown addr " - "%s\n", - dev->name, print_mac(mac, sta_addr)); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - - return -ENOENT; - } - - key = sta->key; - } - - if (remove) { - ieee80211_key_free(key); - key = NULL; - } else { - /* - * Automatically frees any old key if present. - */ - key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key); - if (!key) { - ret = -ENOMEM; - goto err_out; - } - } - - if (set_tx_key || (!sta && !sdata->default_key && key)) - ieee80211_set_default_key(sdata, idx); - - ret = 0; - err_out: - if (sta) - sta_info_put(sta); - return ret; -} - -static int ieee80211_ioctl_siwgenie(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) - return -EOPNOTSUPP; - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length); - if (ret) - return ret; - sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - ieee80211_sta_req_auth(dev, &sdata->u.sta); - return 0; - } - - return -EOPNOTSUPP; -} - -static int ieee80211_ioctl_giwname(struct net_device *dev, - struct iw_request_info *info, - char *name, char *extra) -{ - strcpy(name, "IEEE 802.11"); - - return 0; -} - - -static int ieee80211_ioctl_giwrange(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_range *range = (struct iw_range *) extra; - enum ieee80211_band band; - int c = 0; - - data->length = sizeof(struct iw_range); - memset(range, 0, sizeof(struct iw_range)); - - range->we_version_compiled = WIRELESS_EXT; - range->we_version_source = 21; - range->retry_capa = IW_RETRY_LIMIT; - range->retry_flags = IW_RETRY_LIMIT; - range->min_retry = 0; - range->max_retry = 255; - range->min_rts = 0; - range->max_rts = 2347; - range->min_frag = 256; - range->max_frag = 2346; - - range->encoding_size[0] = 5; - range->encoding_size[1] = 13; - range->num_encoding_sizes = 2; - range->max_encoding_tokens = NUM_DEFAULT_KEYS; - - range->max_qual.qual = local->hw.max_signal; - range->max_qual.level = local->hw.max_rssi; - range->max_qual.noise = local->hw.max_noise; - range->max_qual.updated = local->wstats_flags; - - range->avg_qual.qual = local->hw.max_signal/2; - range->avg_qual.level = 0; - range->avg_qual.noise = 0; - range->avg_qual.updated = local->wstats_flags; - - range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 | - IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP; - - - for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { - int i; - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[band]; - - if (!sband) - continue; - - for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) { - struct ieee80211_channel *chan = &sband->channels[i]; - - if (!(chan->flags & IEEE80211_CHAN_DISABLED)) { - range->freq[c].i = - ieee80211_frequency_to_channel( - chan->center_freq); - range->freq[c].m = chan->center_freq; - range->freq[c].e = 6; - c++; - } - } - } - range->num_channels = c; - range->num_frequency = c; - - IW_EVENT_CAPA_SET_KERNEL(range->event_capa); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); - IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); - - range->scan_capa |= IW_SCAN_CAPA_ESSID; - - return 0; -} - - -static int ieee80211_ioctl_siwmode(struct net_device *dev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int type; - - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - return -EOPNOTSUPP; - - switch (*mode) { - case IW_MODE_INFRA: - type = IEEE80211_IF_TYPE_STA; - break; - case IW_MODE_ADHOC: - type = IEEE80211_IF_TYPE_IBSS; - break; - case IW_MODE_MONITOR: - type = IEEE80211_IF_TYPE_MNTR; - break; - default: - return -EINVAL; - } - - if (type == sdata->vif.type) - return 0; - if (netif_running(dev)) - return -EBUSY; - - ieee80211_if_reinit(dev); - ieee80211_if_set_type(dev, type); - - return 0; -} - - -static int ieee80211_ioctl_giwmode(struct net_device *dev, - struct iw_request_info *info, - __u32 *mode, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_AP: - *mode = IW_MODE_MASTER; - break; - case IEEE80211_IF_TYPE_STA: - *mode = IW_MODE_INFRA; - break; - case IEEE80211_IF_TYPE_IBSS: - *mode = IW_MODE_ADHOC; - break; - case IEEE80211_IF_TYPE_MNTR: - *mode = IW_MODE_MONITOR; - break; - case IEEE80211_IF_TYPE_WDS: - *mode = IW_MODE_REPEAT; - break; - case IEEE80211_IF_TYPE_VLAN: - *mode = IW_MODE_SECOND; /* FIXME */ - break; - default: - *mode = IW_MODE_AUTO; - break; - } - return 0; -} - -int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz) -{ - int set = 0; - int ret = -EINVAL; - enum ieee80211_band band; - struct ieee80211_supported_band *sband; - int i; - - for (band = 0; band < IEEE80211_NUM_BANDS; band ++) { - sband = local->hw.wiphy->bands[band]; - - if (!sband) - continue; - - for (i = 0; i < sband->n_channels; i++) { - struct ieee80211_channel *chan = &sband->channels[i]; - - if (chan->flags & IEEE80211_CHAN_DISABLED) - continue; - - if (chan->center_freq == freqMHz) { - set = 1; - local->oper_channel = chan; - break; - } - } - if (set) - break; - } - - if (set) { - if (local->sta_sw_scanning) - ret = 0; - else - ret = ieee80211_hw_config(local); - - rate_control_clear(local); - } - - return ret; -} - -static int ieee80211_ioctl_siwfreq(struct net_device *dev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) - sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL; - - /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */ - if (freq->e == 0) { - if (freq->m < 0) { - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) - sdata->u.sta.flags |= - IEEE80211_STA_AUTO_CHANNEL_SEL; - return 0; - } else - return ieee80211_set_freq(local, - ieee80211_channel_to_frequency(freq->m)); - } else { - int i, div = 1000000; - for (i = 0; i < freq->e; i++) - div /= 10; - if (div > 0) - return ieee80211_set_freq(local, freq->m / div); - else - return -EINVAL; - } -} - - -static int ieee80211_ioctl_giwfreq(struct net_device *dev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - freq->m = local->hw.conf.channel->center_freq; - freq->e = 6; - - return 0; -} - - -static int ieee80211_ioctl_siwessid(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *ssid) -{ - struct ieee80211_sub_if_data *sdata; - size_t len = data->length; - - /* iwconfig uses nul termination in SSID.. */ - if (len > 0 && ssid[len - 1] == '\0') - len--; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - int ret; - if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) { - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - memcpy(sdata->u.sta.ssid, ssid, len); - sdata->u.sta.ssid_len = len; - return 0; - } - if (data->flags) - sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; - else - sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL; - ret = ieee80211_sta_set_ssid(dev, ssid, len); - if (ret) - return ret; - ieee80211_sta_req_auth(dev, &sdata->u.sta); - return 0; - } - - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { - memcpy(sdata->u.ap.ssid, ssid, len); - memset(sdata->u.ap.ssid + len, 0, - IEEE80211_MAX_SSID_LEN - len); - sdata->u.ap.ssid_len = len; - return ieee80211_if_config(dev); - } - return -EOPNOTSUPP; -} - - -static int ieee80211_ioctl_giwessid(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *ssid) -{ - size_t len; - - struct ieee80211_sub_if_data *sdata; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - int res = ieee80211_sta_get_ssid(dev, ssid, &len); - if (res == 0) { - data->length = len; - data->flags = 1; - } else - data->flags = 0; - return res; - } - - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) { - len = sdata->u.ap.ssid_len; - if (len > IW_ESSID_MAX_SIZE) - len = IW_ESSID_MAX_SIZE; - memcpy(ssid, sdata->u.ap.ssid, len); - data->length = len; - data->flags = 1; - return 0; - } - return -EOPNOTSUPP; -} - - -static int ieee80211_ioctl_siwap(struct net_device *dev, - struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - int ret; - if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) { - memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data, - ETH_ALEN); - return 0; - } - if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) - sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL | - IEEE80211_STA_AUTO_CHANNEL_SEL; - else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data)) - sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL; - else - sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; - ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data); - if (ret) - return ret; - ieee80211_sta_req_auth(dev, &sdata->u.sta); - return 0; - } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) { - if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data, - ETH_ALEN) == 0) - return 0; - return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data); - } - - return -EOPNOTSUPP; -} - - -static int ieee80211_ioctl_giwap(struct net_device *dev, - struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - ap_addr->sa_family = ARPHRD_ETHER; - memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN); - return 0; - } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) { - ap_addr->sa_family = ARPHRD_ETHER; - memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN); - return 0; - } - - return -EOPNOTSUPP; -} - - -static int ieee80211_ioctl_siwscan(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *wrqu, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct iw_scan_req *req = NULL; - u8 *ssid = NULL; - size_t ssid_len = 0; - - if (!netif_running(dev)) - return -ENETDOWN; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - sdata->vif.type != IEEE80211_IF_TYPE_AP) - return -EOPNOTSUPP; - - /* if SSID was specified explicitly then use that */ - if (wrqu->data.length == sizeof(struct iw_scan_req) && - wrqu->data.flags & IW_SCAN_THIS_ESSID) { - req = (struct iw_scan_req *)extra; - ssid = req->essid; - ssid_len = req->essid_len; - } - - return ieee80211_sta_req_scan(dev, ssid, ssid_len); -} - - -static int ieee80211_ioctl_giwscan(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - int res; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (local->sta_sw_scanning || local->sta_hw_scanning) - return -EAGAIN; - - res = ieee80211_sta_scan_results(dev, extra, data->length); - if (res >= 0) { - data->length = res; - return 0; - } - data->length = 0; - return res; -} - - -static int ieee80211_ioctl_siwrate(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rate, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int i, err = -EINVAL; - u32 target_rate = rate->value / 100000; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (!sdata->bss) - return -ENODEV; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates - * target_rate = X, rate->fixed = 1 means only rate X - * target_rate = X, rate->fixed = 0 means all rates <= X */ - sdata->bss->max_ratectrl_rateidx = -1; - sdata->bss->force_unicast_rateidx = -1; - if (rate->value < 0) - return 0; - - for (i=0; i< sband->n_bitrates; i++) { - struct ieee80211_rate *brate = &sband->bitrates[i]; - int this_rate = brate->bitrate; - - if (target_rate == this_rate) { - sdata->bss->max_ratectrl_rateidx = i; - if (rate->fixed) - sdata->bss->force_unicast_rateidx = i; - err = 0; - break; - } - } - return err; -} - -static int ieee80211_ioctl_giwrate(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rate, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) - sta = sta_info_get(local, sdata->u.sta.bssid); - else - return -EOPNOTSUPP; - if (!sta) - return -ENODEV; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - if (sta->txrate_idx < sband->n_bitrates) - rate->value = sband->bitrates[sta->txrate_idx].bitrate; - else - rate->value = 0; - rate->value *= 100000; - sta_info_put(sta); - return 0; -} - -static int ieee80211_ioctl_siwtxpower(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *data, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - bool need_reconfig = 0; - int new_power_level; - - if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM) - return -EINVAL; - if (data->txpower.flags & IW_TXPOW_RANGE) - return -EINVAL; - - if (data->txpower.fixed) { - new_power_level = data->txpower.value; - } else { - /* - * Automatic power level. Use maximum power for the current - * channel. Should be part of rate control. - */ - struct ieee80211_channel* chan = local->hw.conf.channel; - if (!chan) - return -EINVAL; - - new_power_level = chan->max_power; - } - - if (local->hw.conf.power_level != new_power_level) { - local->hw.conf.power_level = new_power_level; - need_reconfig = 1; - } - - if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) { - local->hw.conf.radio_enabled = !(data->txpower.disabled); - need_reconfig = 1; - ieee80211_led_radio(local, local->hw.conf.radio_enabled); - } - - if (need_reconfig) { - ieee80211_hw_config(local); - /* The return value of hw_config is not of big interest here, - * as it doesn't say that it failed because of _this_ config - * change or something else. Ignore it. */ - } - - return 0; -} - -static int ieee80211_ioctl_giwtxpower(struct net_device *dev, - struct iw_request_info *info, - union iwreq_data *data, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - data->txpower.fixed = 1; - data->txpower.disabled = !(local->hw.conf.radio_enabled); - data->txpower.value = local->hw.conf.power_level; - data->txpower.flags = IW_TXPOW_DBM; - - return 0; -} - -static int ieee80211_ioctl_siwrts(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rts, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (rts->disabled) - local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; - else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD) - return -EINVAL; - else - local->rts_threshold = rts->value; - - /* If the wlan card performs RTS/CTS in hardware/firmware, - * configure it here */ - - if (local->ops->set_rts_threshold) - local->ops->set_rts_threshold(local_to_hw(local), - local->rts_threshold); - - return 0; -} - -static int ieee80211_ioctl_giwrts(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rts, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - rts->value = local->rts_threshold; - rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD); - rts->fixed = 1; - - return 0; -} - - -static int ieee80211_ioctl_siwfrag(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *frag, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (frag->disabled) - local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD; - else if (frag->value < 256 || - frag->value > IEEE80211_MAX_FRAG_THRESHOLD) - return -EINVAL; - else { - /* Fragment length must be even, so strip LSB. */ - local->fragmentation_threshold = frag->value & ~0x1; - } - - /* If the wlan card performs fragmentation in hardware/firmware, - * configure it here */ - - if (local->ops->set_frag_threshold) - local->ops->set_frag_threshold( - local_to_hw(local), - local->fragmentation_threshold); - - return 0; -} - -static int ieee80211_ioctl_giwfrag(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *frag, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - frag->value = local->fragmentation_threshold; - frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD); - frag->fixed = 1; - - return 0; -} - - -static int ieee80211_ioctl_siwretry(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *retry, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (retry->disabled || - (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) - return -EINVAL; - - if (retry->flags & IW_RETRY_MAX) - local->long_retry_limit = retry->value; - else if (retry->flags & IW_RETRY_MIN) - local->short_retry_limit = retry->value; - else { - local->long_retry_limit = retry->value; - local->short_retry_limit = retry->value; - } - - if (local->ops->set_retry_limit) { - return local->ops->set_retry_limit( - local_to_hw(local), - local->short_retry_limit, - local->long_retry_limit); - } - - return 0; -} - - -static int ieee80211_ioctl_giwretry(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *retry, char *extra) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - retry->disabled = 0; - if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) { - /* first return min value, iwconfig will ask max value - * later if needed */ - retry->flags |= IW_RETRY_LIMIT; - retry->value = local->short_retry_limit; - if (local->long_retry_limit != local->short_retry_limit) - retry->flags |= IW_RETRY_MIN; - return 0; - } - if (retry->flags & IW_RETRY_MAX) { - retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; - retry->value = local->long_retry_limit; - } - - return 0; -} - -static int ieee80211_ioctl_siwmlme(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata; - struct iw_mlme *mlme = (struct iw_mlme *) extra; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) - return -EINVAL; - - switch (mlme->cmd) { - case IW_MLME_DEAUTH: - /* TODO: mlme->addr.sa_data */ - return ieee80211_sta_deauthenticate(dev, mlme->reason_code); - case IW_MLME_DISASSOC: - /* TODO: mlme->addr.sa_data */ - return ieee80211_sta_disassociate(dev, mlme->reason_code); - default: - return -EOPNOTSUPP; - } -} - - -static int ieee80211_ioctl_siwencode(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *erq, char *keybuf) -{ - struct ieee80211_sub_if_data *sdata; - int idx, i, alg = ALG_WEP; - u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; - int remove = 0; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - idx = erq->flags & IW_ENCODE_INDEX; - if (idx == 0) { - if (sdata->default_key) - for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - if (sdata->default_key == sdata->keys[i]) { - idx = i; - break; - } - } - } else if (idx < 1 || idx > 4) - return -EINVAL; - else - idx--; - - if (erq->flags & IW_ENCODE_DISABLED) - remove = 1; - else if (erq->length == 0) { - /* No key data - just set the default TX key index */ - ieee80211_set_default_key(sdata, idx); - return 0; - } - - return ieee80211_set_encryption( - dev, bcaddr, - idx, alg, remove, - !sdata->default_key, - keybuf, erq->length); -} - - -static int ieee80211_ioctl_giwencode(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *erq, char *key) -{ - struct ieee80211_sub_if_data *sdata; - int idx, i; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - idx = erq->flags & IW_ENCODE_INDEX; - if (idx < 1 || idx > 4) { - idx = -1; - if (!sdata->default_key) - idx = 0; - else for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - if (sdata->default_key == sdata->keys[i]) { - idx = i; - break; - } - } - if (idx < 0) - return -EINVAL; - } else - idx--; - - erq->flags = idx + 1; - - if (!sdata->keys[idx]) { - erq->length = 0; - erq->flags |= IW_ENCODE_DISABLED; - return 0; - } - - memcpy(key, sdata->keys[idx]->conf.key, - min_t(int, erq->length, sdata->keys[idx]->conf.keylen)); - erq->length = sdata->keys[idx]->conf.keylen; - erq->flags |= IW_ENCODE_ENABLED; - - return 0; -} - -static int ieee80211_ioctl_siwauth(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int ret = 0; - - switch (data->flags & IW_AUTH_INDEX) { - case IW_AUTH_WPA_VERSION: - case IW_AUTH_CIPHER_PAIRWISE: - case IW_AUTH_CIPHER_GROUP: - case IW_AUTH_WPA_ENABLED: - case IW_AUTH_RX_UNENCRYPTED_EAPOL: - case IW_AUTH_KEY_MGMT: - break; - case IW_AUTH_DROP_UNENCRYPTED: - sdata->drop_unencrypted = !!data->value; - break; - case IW_AUTH_PRIVACY_INVOKED: - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - ret = -EINVAL; - else { - sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED; - /* - * Privacy invoked by wpa_supplicant, store the - * value and allow associating to a protected - * network without having a key up front. - */ - if (data->value) - sdata->u.sta.flags |= - IEEE80211_STA_PRIVACY_INVOKED; - } - break; - case IW_AUTH_80211_AUTH_ALG: - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) - sdata->u.sta.auth_algs = data->value; - else - ret = -EOPNOTSUPP; - break; - default: - ret = -EOPNOTSUPP; - break; - } - return ret; -} - -/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */ -static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_statistics *wstats = &local->wstats; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta = NULL; - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) - sta = sta_info_get(local, sdata->u.sta.bssid); - if (!sta) { - wstats->discard.fragment = 0; - wstats->discard.misc = 0; - wstats->qual.qual = 0; - wstats->qual.level = 0; - wstats->qual.noise = 0; - wstats->qual.updated = IW_QUAL_ALL_INVALID; - } else { - wstats->qual.level = sta->last_rssi; - wstats->qual.qual = sta->last_signal; - wstats->qual.noise = sta->last_noise; - wstats->qual.updated = local->wstats_flags; - sta_info_put(sta); - } - return wstats; -} - -static int ieee80211_ioctl_giwauth(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *data, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int ret = 0; - - switch (data->flags & IW_AUTH_INDEX) { - case IW_AUTH_80211_AUTH_ALG: - if (sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) - data->value = sdata->u.sta.auth_algs; - else - ret = -EOPNOTSUPP; - break; - default: - ret = -EOPNOTSUPP; - break; - } - return ret; -} - - -static int ieee80211_ioctl_siwencodeext(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *erq, char *extra) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; - int uninitialized_var(alg), idx, i, remove = 0; - - switch (ext->alg) { - case IW_ENCODE_ALG_NONE: - remove = 1; - break; - case IW_ENCODE_ALG_WEP: - alg = ALG_WEP; - break; - case IW_ENCODE_ALG_TKIP: - alg = ALG_TKIP; - break; - case IW_ENCODE_ALG_CCMP: - alg = ALG_CCMP; - break; - default: - return -EOPNOTSUPP; - } - - if (erq->flags & IW_ENCODE_DISABLED) - remove = 1; - - idx = erq->flags & IW_ENCODE_INDEX; - if (idx < 1 || idx > 4) { - idx = -1; - if (!sdata->default_key) - idx = 0; - else for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - if (sdata->default_key == sdata->keys[i]) { - idx = i; - break; - } - } - if (idx < 0) - return -EINVAL; - } else - idx--; - - return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg, - remove, - ext->ext_flags & - IW_ENCODE_EXT_SET_TX_KEY, - ext->key, ext->key_len); -} - - -/* Structures to export the Wireless Handlers */ - -static const iw_handler ieee80211_handler[] = -{ - (iw_handler) NULL, /* SIOCSIWCOMMIT */ - (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */ - (iw_handler) NULL, /* SIOCSIWNWID */ - (iw_handler) NULL, /* SIOCGIWNWID */ - (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */ - (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */ - (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */ - (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */ - (iw_handler) NULL, /* SIOCSIWSENS */ - (iw_handler) NULL, /* SIOCGIWSENS */ - (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */ - (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */ - (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */ - (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */ - (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */ - (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */ - (iw_handler) NULL, /* SIOCSIWSPY */ - (iw_handler) NULL, /* SIOCGIWSPY */ - (iw_handler) NULL, /* SIOCSIWTHRSPY */ - (iw_handler) NULL, /* SIOCGIWTHRSPY */ - (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */ - (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */ - (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */ - (iw_handler) NULL, /* SIOCGIWAPLIST */ - (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */ - (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */ - (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */ - (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */ - (iw_handler) NULL, /* SIOCSIWNICKN */ - (iw_handler) NULL, /* SIOCGIWNICKN */ - (iw_handler) NULL, /* -- hole -- */ - (iw_handler) NULL, /* -- hole -- */ - (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */ - (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */ - (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */ - (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */ - (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */ - (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */ - (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */ - (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */ - (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */ - (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */ - (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */ - (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */ - (iw_handler) NULL, /* SIOCSIWPOWER */ - (iw_handler) NULL, /* SIOCGIWPOWER */ - (iw_handler) NULL, /* -- hole -- */ - (iw_handler) NULL, /* -- hole -- */ - (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */ - (iw_handler) NULL, /* SIOCGIWGENIE */ - (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */ - (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */ - (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */ - (iw_handler) NULL, /* SIOCGIWENCODEEXT */ - (iw_handler) NULL, /* SIOCSIWPMKSA */ - (iw_handler) NULL, /* -- hole -- */ -}; - -const struct iw_handler_def ieee80211_iw_handler_def = -{ - .num_standard = ARRAY_SIZE(ieee80211_handler), - .standard = (iw_handler *) ieee80211_handler, - .get_wireless_stats = ieee80211_get_wireless_stats, -}; diff --git a/package/mac80211/src/net/mac80211/ieee80211_key.h b/package/mac80211/src/net/mac80211/ieee80211_key.h deleted file mode 100644 index fc770e98d4..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_key.h +++ /dev/null @@ -1,127 +0,0 @@ -/* - * Copyright 2002-2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef IEEE80211_KEY_H -#define IEEE80211_KEY_H - -#include <linux/types.h> -#include <linux/list.h> -#include <linux/crypto.h> -#include <net/mac80211.h> - -/* ALG_TKIP - * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block: - * Temporal Encryption Key (128 bits) - * Temporal Authenticator Tx MIC Key (64 bits) - * Temporal Authenticator Rx MIC Key (64 bits) - */ - -#define WEP_IV_LEN 4 -#define WEP_ICV_LEN 4 - -#define ALG_TKIP_KEY_LEN 32 -/* Starting offsets for each key */ -#define ALG_TKIP_TEMP_ENCR_KEY 0 -#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16 -#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24 -#define TKIP_IV_LEN 8 -#define TKIP_ICV_LEN 4 - -#define ALG_CCMP_KEY_LEN 16 -#define CCMP_HDR_LEN 8 -#define CCMP_MIC_LEN 8 -#define CCMP_TK_LEN 16 -#define CCMP_PN_LEN 6 - -#define NUM_RX_DATA_QUEUES 17 - -struct ieee80211_local; -struct ieee80211_sub_if_data; -struct sta_info; - -#define KEY_FLAG_UPLOADED_TO_HARDWARE (1<<0) - -struct ieee80211_key { - struct ieee80211_local *local; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - - struct list_head list; - - unsigned int flags; - - union { - struct { - /* last used TSC */ - u32 iv32; - u16 iv16; - u16 p1k[5]; - int tx_initialized; - - /* last received RSC */ - u32 iv32_rx[NUM_RX_DATA_QUEUES]; - u16 iv16_rx[NUM_RX_DATA_QUEUES]; - u16 p1k_rx[NUM_RX_DATA_QUEUES][5]; - int rx_initialized[NUM_RX_DATA_QUEUES]; - } tkip; - struct { - u8 tx_pn[6]; - u8 rx_pn[NUM_RX_DATA_QUEUES][6]; - struct crypto_cipher *tfm; - u32 replays; /* dot11RSNAStatsCCMPReplays */ - /* scratch buffers for virt_to_page() (crypto API) */ -#ifndef AES_BLOCK_LEN -#define AES_BLOCK_LEN 16 -#endif - u8 tx_crypto_buf[6 * AES_BLOCK_LEN]; - u8 rx_crypto_buf[6 * AES_BLOCK_LEN]; - } ccmp; - } u; - - /* number of times this key has been used */ - int tx_rx_count; - -#ifdef CONFIG_MAC80211_DEBUGFS - struct { - struct dentry *stalink; - struct dentry *dir; - struct dentry *keylen; - struct dentry *flags; - struct dentry *keyidx; - struct dentry *hw_key_idx; - struct dentry *tx_rx_count; - struct dentry *algorithm; - struct dentry *tx_spec; - struct dentry *rx_spec; - struct dentry *replays; - struct dentry *key; - struct dentry *ifindex; - } debugfs; -#endif - - /* - * key config, must be last because it contains key - * material as variable length member - */ - struct ieee80211_key_conf conf; -}; - -struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, - struct sta_info *sta, - enum ieee80211_key_alg alg, - int idx, - size_t key_len, - const u8 *key_data); -void ieee80211_key_free(struct ieee80211_key *key); -void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx); -void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata); -void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata); -void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata); - -#endif /* IEEE80211_KEY_H */ diff --git a/package/mac80211/src/net/mac80211/ieee80211_led.c b/package/mac80211/src/net/mac80211/ieee80211_led.c deleted file mode 100644 index f401484ab6..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_led.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Copyright 2006, Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* just for IFNAMSIZ */ -#include <linux/if.h> -#include "ieee80211_led.h" - -void ieee80211_led_rx(struct ieee80211_local *local) -{ - if (unlikely(!local->rx_led)) - return; - if (local->rx_led_counter++ % 2 == 0) - led_trigger_event(local->rx_led, LED_OFF); - else - led_trigger_event(local->rx_led, LED_FULL); -} - -/* q is 1 if a packet was enqueued, 0 if it has been transmitted */ -void ieee80211_led_tx(struct ieee80211_local *local, int q) -{ - if (unlikely(!local->tx_led)) - return; - /* not sure how this is supposed to work ... */ - local->tx_led_counter += 2*q-1; - if (local->tx_led_counter % 2 == 0) - led_trigger_event(local->tx_led, LED_OFF); - else - led_trigger_event(local->tx_led, LED_FULL); -} - -void ieee80211_led_assoc(struct ieee80211_local *local, bool associated) -{ - if (unlikely(!local->assoc_led)) - return; - if (associated) - led_trigger_event(local->assoc_led, LED_FULL); - else - led_trigger_event(local->assoc_led, LED_OFF); -} - -void ieee80211_led_radio(struct ieee80211_local *local, bool enabled) -{ - if (unlikely(!local->radio_led)) - return; - if (enabled) - led_trigger_event(local->radio_led, LED_FULL); - else - led_trigger_event(local->radio_led, LED_OFF); -} - -void ieee80211_led_init(struct ieee80211_local *local) -{ - local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); - if (local->rx_led) { - snprintf(local->rx_led_name, sizeof(local->rx_led_name), - "%srx", wiphy_name(local->hw.wiphy)); - local->rx_led->name = local->rx_led_name; - if (led_trigger_register(local->rx_led)) { - kfree(local->rx_led); - local->rx_led = NULL; - } - } - - local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); - if (local->tx_led) { - snprintf(local->tx_led_name, sizeof(local->tx_led_name), - "%stx", wiphy_name(local->hw.wiphy)); - local->tx_led->name = local->tx_led_name; - if (led_trigger_register(local->tx_led)) { - kfree(local->tx_led); - local->tx_led = NULL; - } - } - - local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); - if (local->assoc_led) { - snprintf(local->assoc_led_name, sizeof(local->assoc_led_name), - "%sassoc", wiphy_name(local->hw.wiphy)); - local->assoc_led->name = local->assoc_led_name; - if (led_trigger_register(local->assoc_led)) { - kfree(local->assoc_led); - local->assoc_led = NULL; - } - } - - local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); - if (local->radio_led) { - snprintf(local->radio_led_name, sizeof(local->radio_led_name), - "%sradio", wiphy_name(local->hw.wiphy)); - local->radio_led->name = local->radio_led_name; - if (led_trigger_register(local->radio_led)) { - kfree(local->radio_led); - local->radio_led = NULL; - } - } -} - -void ieee80211_led_exit(struct ieee80211_local *local) -{ - if (local->radio_led) { - led_trigger_unregister(local->radio_led); - kfree(local->radio_led); - } - if (local->assoc_led) { - led_trigger_unregister(local->assoc_led); - kfree(local->assoc_led); - } - if (local->tx_led) { - led_trigger_unregister(local->tx_led); - kfree(local->tx_led); - } - if (local->rx_led) { - led_trigger_unregister(local->rx_led); - kfree(local->rx_led); - } -} - -char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (local->radio_led) - return local->radio_led_name; - return NULL; -} -EXPORT_SYMBOL(__ieee80211_get_radio_led_name); - -char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (local->assoc_led) - return local->assoc_led_name; - return NULL; -} -EXPORT_SYMBOL(__ieee80211_get_assoc_led_name); - -char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (local->tx_led) - return local->tx_led_name; - return NULL; -} -EXPORT_SYMBOL(__ieee80211_get_tx_led_name); - -char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (local->rx_led) - return local->rx_led_name; - return NULL; -} -EXPORT_SYMBOL(__ieee80211_get_rx_led_name); diff --git a/package/mac80211/src/net/mac80211/ieee80211_led.h b/package/mac80211/src/net/mac80211/ieee80211_led.h deleted file mode 100644 index 77b1e1ba60..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_led.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * Copyright 2006, Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/list.h> -#include <linux/spinlock.h> -#include <linux/leds.h> -#include "ieee80211_i.h" - -#ifdef CONFIG_MAC80211_LEDS -extern void ieee80211_led_rx(struct ieee80211_local *local); -extern void ieee80211_led_tx(struct ieee80211_local *local, int q); -extern void ieee80211_led_assoc(struct ieee80211_local *local, - bool associated); -extern void ieee80211_led_radio(struct ieee80211_local *local, - bool enabled); -extern void ieee80211_led_init(struct ieee80211_local *local); -extern void ieee80211_led_exit(struct ieee80211_local *local); -#else -static inline void ieee80211_led_rx(struct ieee80211_local *local) -{ -} -static inline void ieee80211_led_tx(struct ieee80211_local *local, int q) -{ -} -static inline void ieee80211_led_assoc(struct ieee80211_local *local, - bool associated) -{ -} -static inline void ieee80211_led_radio(struct ieee80211_local *local, - bool enabled) -{ -} -static inline void ieee80211_led_init(struct ieee80211_local *local) -{ -} -static inline void ieee80211_led_exit(struct ieee80211_local *local) -{ -} -#endif diff --git a/package/mac80211/src/net/mac80211/ieee80211_rate.c b/package/mac80211/src/net/mac80211/ieee80211_rate.c deleted file mode 100644 index ebe29b716b..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_rate.c +++ /dev/null @@ -1,247 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/rtnetlink.h> -#include "ieee80211_rate.h" -#include "ieee80211_i.h" - -struct rate_control_alg { - struct list_head list; - struct rate_control_ops *ops; -}; - -static LIST_HEAD(rate_ctrl_algs); -static DEFINE_MUTEX(rate_ctrl_mutex); - -static char *ieee80211_default_rc_algo = CONFIG_MAC80211_RC_DEFAULT; -module_param(ieee80211_default_rc_algo, charp, 0644); -MODULE_PARM_DESC(ieee80211_default_rc_algo, - "Default rate control algorithm for mac80211 to use"); - -int ieee80211_rate_control_register(struct rate_control_ops *ops) -{ - struct rate_control_alg *alg; - - if (!ops->name) - return -EINVAL; - - mutex_lock(&rate_ctrl_mutex); - list_for_each_entry(alg, &rate_ctrl_algs, list) { - if (!strcmp(alg->ops->name, ops->name)) { - /* don't register an algorithm twice */ - WARN_ON(1); - mutex_unlock(&rate_ctrl_mutex); - return -EALREADY; - } - } - - alg = kzalloc(sizeof(*alg), GFP_KERNEL); - if (alg == NULL) { - mutex_unlock(&rate_ctrl_mutex); - return -ENOMEM; - } - alg->ops = ops; - - list_add_tail(&alg->list, &rate_ctrl_algs); - mutex_unlock(&rate_ctrl_mutex); - - return 0; -} -EXPORT_SYMBOL(ieee80211_rate_control_register); - -void ieee80211_rate_control_unregister(struct rate_control_ops *ops) -{ - struct rate_control_alg *alg; - - mutex_lock(&rate_ctrl_mutex); - list_for_each_entry(alg, &rate_ctrl_algs, list) { - if (alg->ops == ops) { - list_del(&alg->list); - kfree(alg); - break; - } - } - mutex_unlock(&rate_ctrl_mutex); -} -EXPORT_SYMBOL(ieee80211_rate_control_unregister); - -static struct rate_control_ops * -ieee80211_try_rate_control_ops_get(const char *name) -{ - struct rate_control_alg *alg; - struct rate_control_ops *ops = NULL; - - if (!name) - return NULL; - - mutex_lock(&rate_ctrl_mutex); - list_for_each_entry(alg, &rate_ctrl_algs, list) { - if (!strcmp(alg->ops->name, name)) - if (try_module_get(alg->ops->module)) { - ops = alg->ops; - break; - } - } - mutex_unlock(&rate_ctrl_mutex); - return ops; -} - -/* Get the rate control algorithm. */ -static struct rate_control_ops * -ieee80211_rate_control_ops_get(const char *name) -{ - struct rate_control_ops *ops; - const char *alg_name; - - if (!name) - alg_name = ieee80211_default_rc_algo; - else - alg_name = name; - - ops = ieee80211_try_rate_control_ops_get(alg_name); - if (!ops) { - request_module("rc80211_%s", alg_name); - ops = ieee80211_try_rate_control_ops_get(alg_name); - } - if (!ops && name) - /* try default if specific alg requested but not found */ - ops = ieee80211_try_rate_control_ops_get(ieee80211_default_rc_algo); - - /* try built-in one if specific alg requested but not found */ - if (!ops && strlen(CONFIG_MAC80211_RC_DEFAULT)) - ops = ieee80211_try_rate_control_ops_get(CONFIG_MAC80211_RC_DEFAULT); - - return ops; -} - -static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops) -{ - module_put(ops->module); -} - -struct rate_control_ref *rate_control_alloc(const char *name, - struct ieee80211_local *local) -{ - struct rate_control_ref *ref; - - ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL); - if (!ref) - goto fail_ref; - kref_init(&ref->kref); - ref->ops = ieee80211_rate_control_ops_get(name); - if (!ref->ops) - goto fail_ops; - ref->priv = ref->ops->alloc(local); - if (!ref->priv) - goto fail_priv; - return ref; - -fail_priv: - ieee80211_rate_control_ops_put(ref->ops); -fail_ops: - kfree(ref); -fail_ref: - return NULL; -} - -static void rate_control_release(struct kref *kref) -{ - struct rate_control_ref *ctrl_ref; - - ctrl_ref = container_of(kref, struct rate_control_ref, kref); - ctrl_ref->ops->free(ctrl_ref->priv); - ieee80211_rate_control_ops_put(ctrl_ref->ops); - kfree(ctrl_ref); -} - -void rate_control_get_rate(struct net_device *dev, - struct ieee80211_supported_band *sband, - struct sk_buff *skb, - struct rate_selection *sel) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct rate_control_ref *ref = local->rate_ctrl; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct sta_info *sta = sta_info_get(local, hdr->addr1); - int i; - - memset(sel, 0, sizeof(struct rate_selection)); - - ref->ops->get_rate(ref->priv, dev, sband, skb, sel); - - /* Select a non-ERP backup rate. */ - if (!sel->nonerp) { - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (sel->rate->bitrate < rate->bitrate) - break; - - if (rate_supported(sta, sband->band, i) && - !(rate->flags & IEEE80211_RATE_ERP_G)) - sel->nonerp = rate; - } - } - - if (sta) - sta_info_put(sta); -} - -struct rate_control_ref *rate_control_get(struct rate_control_ref *ref) -{ - kref_get(&ref->kref); - return ref; -} - -void rate_control_put(struct rate_control_ref *ref) -{ - kref_put(&ref->kref, rate_control_release); -} - -int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, - const char *name) -{ - struct rate_control_ref *ref, *old; - - ASSERT_RTNL(); - if (local->open_count || netif_running(local->mdev)) - return -EBUSY; - - ref = rate_control_alloc(name, local); - if (!ref) { - printk(KERN_WARNING "%s: Failed to select rate control " - "algorithm\n", wiphy_name(local->hw.wiphy)); - return -ENOENT; - } - - old = local->rate_ctrl; - local->rate_ctrl = ref; - if (old) { - rate_control_put(old); - sta_info_flush(local, NULL); - } - - printk(KERN_DEBUG "%s: Selected rate control " - "algorithm '%s'\n", wiphy_name(local->hw.wiphy), - ref->ops->name); - - - return 0; -} - -void rate_control_deinitialize(struct ieee80211_local *local) -{ - struct rate_control_ref *ref; - - ref = local->rate_ctrl; - local->rate_ctrl = NULL; - rate_control_put(ref); -} - diff --git a/package/mac80211/src/net/mac80211/ieee80211_rate.h b/package/mac80211/src/net/mac80211/ieee80211_rate.h deleted file mode 100644 index 5f9a2ca49a..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_rate.h +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef IEEE80211_RATE_H -#define IEEE80211_RATE_H - -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/types.h> -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "sta_info.h" - -/* TODO: kdoc */ -struct rate_selection { - /* Selected transmission rate */ - struct ieee80211_rate *rate; - /* Non-ERP rate to use if mac80211 decides it cannot use an ERP rate */ - struct ieee80211_rate *nonerp; - /* probe with this rate, or NULL for no probing */ - struct ieee80211_rate *probe; -}; - -struct rate_control_ops { - struct module *module; - const char *name; - void (*tx_status)(void *priv, struct net_device *dev, - struct sk_buff *skb, - struct ieee80211_tx_status *status); - void (*get_rate)(void *priv, struct net_device *dev, - struct ieee80211_supported_band *band, - struct sk_buff *skb, - struct rate_selection *sel); - void (*rate_init)(void *priv, void *priv_sta, - struct ieee80211_local *local, struct sta_info *sta); - void (*clear)(void *priv); - - void *(*alloc)(struct ieee80211_local *local); - void (*free)(void *priv); - void *(*alloc_sta)(void *priv, gfp_t gfp); - void (*free_sta)(void *priv, void *priv_sta); - - int (*add_attrs)(void *priv, struct kobject *kobj); - void (*remove_attrs)(void *priv, struct kobject *kobj); - void (*add_sta_debugfs)(void *priv, void *priv_sta, - struct dentry *dir); - void (*remove_sta_debugfs)(void *priv, void *priv_sta); -}; - -struct rate_control_ref { - struct rate_control_ops *ops; - void *priv; - struct kref kref; -}; - -int ieee80211_rate_control_register(struct rate_control_ops *ops); -void ieee80211_rate_control_unregister(struct rate_control_ops *ops); - -/* Get a reference to the rate control algorithm. If `name' is NULL, get the - * first available algorithm. */ -struct rate_control_ref *rate_control_alloc(const char *name, - struct ieee80211_local *local); -void rate_control_get_rate(struct net_device *dev, - struct ieee80211_supported_band *sband, - struct sk_buff *skb, - struct rate_selection *sel); -struct rate_control_ref *rate_control_get(struct rate_control_ref *ref); -void rate_control_put(struct rate_control_ref *ref); - -static inline void rate_control_tx_status(struct net_device *dev, - struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct rate_control_ref *ref = local->rate_ctrl; - - ref->ops->tx_status(ref->priv, dev, skb, status); -} - - -static inline void rate_control_rate_init(struct sta_info *sta, - struct ieee80211_local *local) -{ - struct rate_control_ref *ref = sta->rate_ctrl; - ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta); -} - - -static inline void rate_control_clear(struct ieee80211_local *local) -{ - struct rate_control_ref *ref = local->rate_ctrl; - ref->ops->clear(ref->priv); -} - -static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, - gfp_t gfp) -{ - return ref->ops->alloc_sta(ref->priv, gfp); -} - -static inline void rate_control_free_sta(struct rate_control_ref *ref, - void *priv) -{ - ref->ops->free_sta(ref->priv, priv); -} - -static inline void rate_control_add_sta_debugfs(struct sta_info *sta) -{ -#ifdef CONFIG_MAC80211_DEBUGFS - struct rate_control_ref *ref = sta->rate_ctrl; - if (sta->debugfs.dir && ref->ops->add_sta_debugfs) - ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv, - sta->debugfs.dir); -#endif -} - -static inline void rate_control_remove_sta_debugfs(struct sta_info *sta) -{ -#ifdef CONFIG_MAC80211_DEBUGFS - struct rate_control_ref *ref = sta->rate_ctrl; - if (ref->ops->remove_sta_debugfs) - ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv); -#endif -} - -static inline int rate_supported(struct sta_info *sta, - enum ieee80211_band band, - int index) -{ - return (sta == NULL || sta->supp_rates[band] & BIT(index)); -} - -static inline int -rate_lowest_index(struct ieee80211_local *local, - struct ieee80211_supported_band *sband, - struct sta_info *sta) -{ - int i; - - for (i = 0; i < sband->n_bitrates; i++) - if (rate_supported(sta, sband->band, i)) - return i; - - /* warn when we cannot find a rate. */ - WARN_ON(1); - - return 0; -} - -static inline struct ieee80211_rate * -rate_lowest(struct ieee80211_local *local, - struct ieee80211_supported_band *sband, - struct sta_info *sta) -{ - return &sband->bitrates[rate_lowest_index(local, sband, sta)]; -} - - -/* functions for rate control related to a device */ -int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, - const char *name); -void rate_control_deinitialize(struct ieee80211_local *local); - - -/* Rate control algorithms */ -#if defined(RC80211_SIMPLE_COMPILE) || \ - (defined(CONFIG_MAC80211_RC_SIMPLE) && \ - !defined(CONFIG_MAC80211_RC_SIMPLE_MODULE)) -extern int rc80211_simple_init(void); -extern void rc80211_simple_exit(void); -#else -static inline int rc80211_simple_init(void) -{ - return 0; -} -static inline void rc80211_simple_exit(void) -{ -} -#endif - -#if defined(RC80211_PID_COMPILE) || \ - (defined(CONFIG_MAC80211_RC_PID) && \ - !defined(CONFIG_MAC80211_RC_PID_MODULE)) -extern int rc80211_pid_init(void); -extern void rc80211_pid_exit(void); -#else -static inline int rc80211_pid_init(void) -{ - return 0; -} -static inline void rc80211_pid_exit(void) -{ -} -#endif - -#endif /* IEEE80211_RATE_H */ diff --git a/package/mac80211/src/net/mac80211/ieee80211_sta.c b/package/mac80211/src/net/mac80211/ieee80211_sta.c deleted file mode 100644 index 92d7450e2c..0000000000 --- a/package/mac80211/src/net/mac80211/ieee80211_sta.c +++ /dev/null @@ -1,3840 +0,0 @@ -/* - * BSS client mode implementation - * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> - * Copyright 2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007, Michael Wu <flamingice@sourmilk.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* TODO: - * order BSS list by RSSI(?) ("quality of AP") - * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE, - * SSID) - */ -#include <linux/delay.h> -#include <linux/if_ether.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/if_arp.h> -#include <linux/wireless.h> -#include <linux/random.h> -#include <linux/etherdevice.h> -#include <net/iw_handler.h> -#include <asm/types.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "ieee80211_led.h" - -#define IEEE80211_AUTH_TIMEOUT (HZ / 5) -#define IEEE80211_AUTH_MAX_TRIES 3 -#define IEEE80211_ASSOC_TIMEOUT (HZ / 5) -#define IEEE80211_ASSOC_MAX_TRIES 3 -#define IEEE80211_MONITORING_INTERVAL (2 * HZ) -#define IEEE80211_PROBE_INTERVAL (60 * HZ) -#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ) -#define IEEE80211_SCAN_INTERVAL (2 * HZ) -#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ) -#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ) - -#define IEEE80211_PROBE_DELAY (HZ / 33) -#define IEEE80211_CHANNEL_TIME (HZ / 33) -#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5) -#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ) -#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ) -#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ) - -#define IEEE80211_IBSS_MAX_STA_ENTRIES 128 - - -#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype) - -#define ERP_INFO_USE_PROTECTION BIT(1) - -/* mgmt header + 1 byte action code */ -#define IEEE80211_MIN_ACTION_SIZE (24 + 1) - -#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002 -#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C -#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0 -#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000 -#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800 - -/* next values represent the buffer size for A-MPDU frame. - * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */ -#define IEEE80211_MIN_AMPDU_BUF 0x8 -#define IEEE80211_MAX_AMPDU_BUF 0x40 - -static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst, - u8 *ssid, size_t ssid_len); -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len); -static void ieee80211_rx_bss_put(struct net_device *dev, - struct ieee80211_sta_bss *bss); -static int ieee80211_sta_find_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta); -static int ieee80211_sta_wep_configured(struct net_device *dev); -static int ieee80211_sta_start_scan(struct net_device *dev, - u8 *ssid, size_t ssid_len); -static int ieee80211_sta_config_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta); - - -/* Parsed Information Elements */ -struct ieee802_11_elems { - /* pointers to IEs */ - u8 *ssid; - u8 *supp_rates; - u8 *fh_params; - u8 *ds_params; - u8 *cf_params; - u8 *tim; - u8 *ibss_params; - u8 *challenge; - u8 *wpa; - u8 *rsn; - u8 *erp_info; - u8 *ext_supp_rates; - u8 *wmm_info; - u8 *wmm_param; - u8 *ht_cap_elem; - u8 *ht_info_elem; - /* length of them, respectively */ - u8 ssid_len; - u8 supp_rates_len; - u8 fh_params_len; - u8 ds_params_len; - u8 cf_params_len; - u8 tim_len; - u8 ibss_params_len; - u8 challenge_len; - u8 wpa_len; - u8 rsn_len; - u8 erp_info_len; - u8 ext_supp_rates_len; - u8 wmm_info_len; - u8 wmm_param_len; - u8 ht_cap_elem_len; - u8 ht_info_elem_len; -}; - -static void ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems) -{ - size_t left = len; - u8 *pos = start; - - memset(elems, 0, sizeof(*elems)); - - while (left >= 2) { - u8 id, elen; - - id = *pos++; - elen = *pos++; - left -= 2; - - if (elen > left) - return; - - switch (id) { - case WLAN_EID_SSID: - elems->ssid = pos; - elems->ssid_len = elen; - break; - case WLAN_EID_SUPP_RATES: - elems->supp_rates = pos; - elems->supp_rates_len = elen; - break; - case WLAN_EID_FH_PARAMS: - elems->fh_params = pos; - elems->fh_params_len = elen; - break; - case WLAN_EID_DS_PARAMS: - elems->ds_params = pos; - elems->ds_params_len = elen; - break; - case WLAN_EID_CF_PARAMS: - elems->cf_params = pos; - elems->cf_params_len = elen; - break; - case WLAN_EID_TIM: - elems->tim = pos; - elems->tim_len = elen; - break; - case WLAN_EID_IBSS_PARAMS: - elems->ibss_params = pos; - elems->ibss_params_len = elen; - break; - case WLAN_EID_CHALLENGE: - elems->challenge = pos; - elems->challenge_len = elen; - break; - case WLAN_EID_WPA: - if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && - pos[2] == 0xf2) { - /* Microsoft OUI (00:50:F2) */ - if (pos[3] == 1) { - /* OUI Type 1 - WPA IE */ - elems->wpa = pos; - elems->wpa_len = elen; - } else if (elen >= 5 && pos[3] == 2) { - if (pos[4] == 0) { - elems->wmm_info = pos; - elems->wmm_info_len = elen; - } else if (pos[4] == 1) { - elems->wmm_param = pos; - elems->wmm_param_len = elen; - } - } - } - break; - case WLAN_EID_RSN: - elems->rsn = pos; - elems->rsn_len = elen; - break; - case WLAN_EID_ERP_INFO: - elems->erp_info = pos; - elems->erp_info_len = elen; - break; - case WLAN_EID_EXT_SUPP_RATES: - elems->ext_supp_rates = pos; - elems->ext_supp_rates_len = elen; - break; - case WLAN_EID_HT_CAPABILITY: - elems->ht_cap_elem = pos; - elems->ht_cap_elem_len = elen; - break; - case WLAN_EID_HT_EXTRA_INFO: - elems->ht_info_elem = pos; - elems->ht_info_elem_len = elen; - break; - default: - break; - } - - left -= elen; - pos += elen; - } -} - - -static int ecw2cw(int ecw) -{ - int cw = 1; - while (ecw > 0) { - cw <<= 1; - ecw--; - } - return cw - 1; -} - -static void ieee80211_sta_wmm_params(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - u8 *wmm_param, size_t wmm_param_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_tx_queue_params params; - size_t left; - int count; - u8 *pos; - - if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) - return; - count = wmm_param[6] & 0x0f; - if (count == ifsta->wmm_last_param_set) - return; - ifsta->wmm_last_param_set = count; - - pos = wmm_param + 8; - left = wmm_param_len - 8; - - memset(¶ms, 0, sizeof(params)); - - if (!local->ops->conf_tx) - return; - - local->wmm_acm = 0; - for (; left >= 4; left -= 4, pos += 4) { - int aci = (pos[0] >> 5) & 0x03; - int acm = (pos[0] >> 4) & 0x01; - int queue; - - switch (aci) { - case 1: - queue = IEEE80211_TX_QUEUE_DATA3; - if (acm) { - local->wmm_acm |= BIT(0) | BIT(3); - } - break; - case 2: - queue = IEEE80211_TX_QUEUE_DATA1; - if (acm) { - local->wmm_acm |= BIT(4) | BIT(5); - } - break; - case 3: - queue = IEEE80211_TX_QUEUE_DATA0; - if (acm) { - local->wmm_acm |= BIT(6) | BIT(7); - } - break; - case 0: - default: - queue = IEEE80211_TX_QUEUE_DATA2; - if (acm) { - local->wmm_acm |= BIT(1) | BIT(2); - } - break; - } - - params.aifs = pos[0] & 0x0f; - params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4); - params.cw_min = ecw2cw(pos[1] & 0x0f); - /* TXOP is in units of 32 usec; burst_time in 0.1 ms */ - params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100; - printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d " - "cWmin=%d cWmax=%d burst=%d\n", - dev->name, queue, aci, acm, params.aifs, params.cw_min, - params.cw_max, params.burst_time); - /* TODO: handle ACM (block TX, fallback to next lowest allowed - * AC for now) */ - if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) { - printk(KERN_DEBUG "%s: failed to set TX queue " - "parameters for queue %d\n", dev->name, queue); - } - } -} - - -static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata, - u8 erp_value) -{ - struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf; - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0; - bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0; - DECLARE_MAC_BUF(mac); - u32 changed = 0; - - if (use_protection != bss_conf->use_cts_prot) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" - "%s)\n", - sdata->dev->name, - use_protection ? "enabled" : "disabled", - print_mac(mac, ifsta->bssid)); - } - bss_conf->use_cts_prot = use_protection; - changed |= BSS_CHANGED_ERP_CTS_PROT; - } - - if (preamble_mode != bss_conf->use_short_preamble) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: switched to %s barker preamble" - " (BSSID=%s)\n", - sdata->dev->name, - (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ? - "short" : "long", - print_mac(mac, ifsta->bssid)); - } - bss_conf->use_short_preamble = preamble_mode; - changed |= BSS_CHANGED_ERP_PREAMBLE; - } - - return changed; -} - -int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie, - struct ieee80211_ht_info *ht_info) -{ - - if (ht_info == NULL) - return -EINVAL; - - memset(ht_info, 0, sizeof(*ht_info)); - - if (ht_cap_ie) { - u8 ampdu_info = ht_cap_ie->ampdu_params_info; - - ht_info->ht_supported = 1; - ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info); - ht_info->ampdu_factor = - ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR; - ht_info->ampdu_density = - (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2; - memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16); - } else - ht_info->ht_supported = 0; - - return 0; -} - -int ieee80211_ht_addt_info_ie_to_ht_bss_info( - struct ieee80211_ht_addt_info *ht_add_info_ie, - struct ieee80211_ht_bss_info *bss_info) -{ - if (bss_info == NULL) - return -EINVAL; - - memset(bss_info, 0, sizeof(*bss_info)); - - if (ht_add_info_ie) { - u16 op_mode; - op_mode = le16_to_cpu(ht_add_info_ie->operation_mode); - - bss_info->primary_channel = ht_add_info_ie->control_chan; - bss_info->bss_cap = ht_add_info_ie->ht_param; - bss_info->bss_op_mode = (u8)(op_mode & 0xff); - } - - return 0; -} - -static void ieee80211_sta_send_associnfo(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - char *buf; - size_t len; - int i; - union iwreq_data wrqu; - - if (!ifsta->assocreq_ies && !ifsta->assocresp_ies) - return; - - buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len + - ifsta->assocresp_ies_len), GFP_KERNEL); - if (!buf) - return; - - len = sprintf(buf, "ASSOCINFO("); - if (ifsta->assocreq_ies) { - len += sprintf(buf + len, "ReqIEs="); - for (i = 0; i < ifsta->assocreq_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocreq_ies[i]); - } - } - if (ifsta->assocresp_ies) { - if (ifsta->assocreq_ies) - len += sprintf(buf + len, " "); - len += sprintf(buf + len, "RespIEs="); - for (i = 0; i < ifsta->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocresp_ies[i]); - } - } - len += sprintf(buf + len, ")"); - - if (len > IW_CUSTOM_MAX) { - len = sprintf(buf, "ASSOCRESPIE="); - for (i = 0; i < ifsta->assocresp_ies_len; i++) { - len += sprintf(buf + len, "%02x", - ifsta->assocresp_ies[i]); - } - } - - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = len; - wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf); - - kfree(buf); -} - - -static void ieee80211_set_associated(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - bool assoc) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = sdata->local; - union iwreq_data wrqu; - u32 changed = BSS_CHANGED_ASSOC; - - if (assoc) { - struct ieee80211_sta_bss *bss; - - ifsta->flags |= IEEE80211_STA_ASSOCIATED; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - if (bss->has_erp_value) - changed |= ieee80211_handle_erp_ie( - sdata, bss->erp_value); - ieee80211_rx_bss_put(dev, bss); - } - - netif_carrier_on(dev); - ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN); - memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN); - ieee80211_sta_send_associnfo(dev, ifsta); - } else { - ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - - netif_carrier_off(dev); - ieee80211_reset_erp_info(dev); - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); - } - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); - ifsta->last_probe = jiffies; - ieee80211_led_assoc(local, assoc); - - sdata->bss_conf.assoc = assoc; - ieee80211_bss_info_change_notify(sdata, changed); -} - -static void ieee80211_set_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, int deauth) -{ - if (deauth) - ifsta->auth_tries = 0; - ifsta->assoc_tries = 0; - ieee80211_set_associated(dev, ifsta, 0); -} - -static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb, - int encrypt) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_tx_packet_data *pkt_data; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - skb->dev = sdata->local->mdev; - skb_set_mac_header(skb, 0); - skb_set_network_header(skb, 0); - skb_set_transport_header(skb, 0); - - pkt_data = (struct ieee80211_tx_packet_data *) skb->cb; - memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data)); - pkt_data->ifindex = sdata->dev->ifindex; - if (!encrypt) - pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT; - - dev_queue_xmit(skb); -} - - -static void ieee80211_send_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - int transaction, u8 *extra, size_t extra_len, - int encrypt) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 6 + extra_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for auth " - "frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6); - memset(mgmt, 0, 24 + 6); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_AUTH); - if (encrypt) - mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg); - mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); - ifsta->auth_transaction = transaction + 1; - mgmt->u.auth.status_code = cpu_to_le16(0); - if (extra) - memcpy(skb_put(skb, extra_len), extra, extra_len); - - ieee80211_sta_tx(dev, skb, encrypt); -} - - -static void ieee80211_authenticate(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - DECLARE_MAC_BUF(mac); - - ifsta->auth_tries++; - if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) { - printk(KERN_DEBUG "%s: authentication with AP %s" - " timed out\n", - dev->name, print_mac(mac, ifsta->bssid)); - ifsta->state = IEEE80211_DISABLED; - return; - } - - ifsta->state = IEEE80211_AUTHENTICATE; - printk(KERN_DEBUG "%s: authenticate with AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - - ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0); - - mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT); -} - - -static void ieee80211_send_assoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *ies; - int i, len; - u16 capab; - struct ieee80211_sta_bss *bss; - int wmm = 0; - struct ieee80211_supported_band *sband; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + - sizeof(*mgmt) + 200 + ifsta->extra_ie_len + - ifsta->ssid_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for assoc " - "frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - capab = ifsta->capab; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) { - if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) - capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; - if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) - capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; - } - - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - if (bss->capability & WLAN_CAPABILITY_PRIVACY) - capab |= WLAN_CAPABILITY_PRIVACY; - if (bss->wmm_ie) { - wmm = 1; - } - ieee80211_rx_bss_put(dev, bss); - } - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - - if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) { - skb_put(skb, 10); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_REASSOC_REQ); - mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); - mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1); - memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid, - ETH_ALEN); - } else { - skb_put(skb, 4); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ASSOC_REQ); - mgmt->u.assoc_req.capab_info = cpu_to_le16(capab); - mgmt->u.assoc_req.listen_interval = cpu_to_le16(1); - } - - /* SSID */ - ies = pos = skb_put(skb, 2 + ifsta->ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ifsta->ssid_len; - memcpy(pos, ifsta->ssid, ifsta->ssid_len); - - len = sband->n_bitrates; - if (len > 8) - len = 8; - pos = skb_put(skb, len + 2); - *pos++ = WLAN_EID_SUPP_RATES; - *pos++ = len; - for (i = 0; i < len; i++) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - - if (sband->n_bitrates > len) { - pos = skb_put(skb, sband->n_bitrates - len + 2); - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = sband->n_bitrates - len; - for (i = len; i < sband->n_bitrates; i++) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - } - - if (ifsta->extra_ie) { - pos = skb_put(skb, ifsta->extra_ie_len); - memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len); - } - - if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { - pos = skb_put(skb, 9); - *pos++ = WLAN_EID_VENDOR_SPECIFIC; - *pos++ = 7; /* len */ - *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */ - *pos++ = 0x50; - *pos++ = 0xf2; - *pos++ = 2; /* WME */ - *pos++ = 0; /* WME info */ - *pos++ = 1; /* WME ver */ - *pos++ = 0; - } - /* wmm support is a must to HT */ - if (wmm && sband->ht_info.ht_supported) { - __le16 tmp = cpu_to_le16(sband->ht_info.cap); - pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2); - *pos++ = WLAN_EID_HT_CAPABILITY; - *pos++ = sizeof(struct ieee80211_ht_cap); - memset(pos, 0, sizeof(struct ieee80211_ht_cap)); - memcpy(pos, &tmp, sizeof(u16)); - pos += sizeof(u16); - /* TODO: needs a define here for << 2 */ - *pos++ = sband->ht_info.ampdu_factor | - (sband->ht_info.ampdu_density << 2); - memcpy(pos, sband->ht_info.supp_mcs_set, 16); - } - - kfree(ifsta->assocreq_ies); - ifsta->assocreq_ies_len = (skb->data + skb->len) - ies; - ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL); - if (ifsta->assocreq_ies) - memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len); - - ieee80211_sta_tx(dev, skb, 0); -} - - -static void ieee80211_send_deauth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, u16 reason) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for deauth " - "frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_DEAUTH); - skb_put(skb, 2); - mgmt->u.deauth.reason_code = cpu_to_le16(reason); - - ieee80211_sta_tx(dev, skb, 0); -} - - -static void ieee80211_send_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, u16 reason) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc " - "frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, ifsta->bssid, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_DISASSOC); - skb_put(skb, 2); - mgmt->u.disassoc.reason_code = cpu_to_le16(reason); - - ieee80211_sta_tx(dev, skb, 0); -} - - -static int ieee80211_privacy_mismatch(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - int bss_privacy; - int wep_privacy; - int privacy_invoked; - - if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL)) - return 0; - - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (!bss) - return 0; - - bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY); - wep_privacy = !!ieee80211_sta_wep_configured(dev); - privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED); - - ieee80211_rx_bss_put(dev, bss); - - if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked)) - return 0; - - return 1; -} - - -static void ieee80211_associate(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - DECLARE_MAC_BUF(mac); - - ifsta->assoc_tries++; - if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { - printk(KERN_DEBUG "%s: association with AP %s" - " timed out\n", - dev->name, print_mac(mac, ifsta->bssid)); - ifsta->state = IEEE80211_DISABLED; - return; - } - - ifsta->state = IEEE80211_ASSOCIATE; - printk(KERN_DEBUG "%s: associate with AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - if (ieee80211_privacy_mismatch(dev, ifsta)) { - printk(KERN_DEBUG "%s: mismatch in privacy configuration and " - "mixed-cell disabled - abort association\n", dev->name); - ifsta->state = IEEE80211_DISABLED; - return; - } - - ieee80211_send_assoc(dev, ifsta); - - mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT); -} - - -static void ieee80211_associated(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - int disassoc; - DECLARE_MAC_BUF(mac); - - /* TODO: start monitoring current AP signal quality and number of - * missed beacons. Scan other channels every now and then and search - * for better APs. */ - /* TODO: remove expired BSSes */ - - ifsta->state = IEEE80211_ASSOCIATED; - - sta = sta_info_get(local, ifsta->bssid); - if (!sta) { - printk(KERN_DEBUG "%s: No STA entry for own AP %s\n", - dev->name, print_mac(mac, ifsta->bssid)); - disassoc = 1; - } else { - disassoc = 0; - if (time_after(jiffies, - sta->last_rx + IEEE80211_MONITORING_INTERVAL)) { - if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) { - printk(KERN_DEBUG "%s: No ProbeResp from " - "current AP %s - assume out of " - "range\n", - dev->name, print_mac(mac, ifsta->bssid)); - disassoc = 1; - sta_info_free(sta); - } else - ieee80211_send_probe_req(dev, ifsta->bssid, - local->scan_ssid, - local->scan_ssid_len); - ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL; - } else { - ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL; - if (time_after(jiffies, ifsta->last_probe + - IEEE80211_PROBE_INTERVAL)) { - ifsta->last_probe = jiffies; - ieee80211_send_probe_req(dev, ifsta->bssid, - ifsta->ssid, - ifsta->ssid_len); - } - } - sta_info_put(sta); - } - if (disassoc) { - ifsta->state = IEEE80211_DISABLED; - ieee80211_set_associated(dev, ifsta, 0); - } else { - mod_timer(&ifsta->timer, jiffies + - IEEE80211_MONITORING_INTERVAL); - } -} - - -static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst, - u8 *ssid, size_t ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_supported_band *sband; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *supp_rates, *esupp_rates = NULL; - int i; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for probe " - "request\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_PROBE_REQ); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (dst) { - memcpy(mgmt->da, dst, ETH_ALEN); - memcpy(mgmt->bssid, dst, ETH_ALEN); - } else { - memset(mgmt->da, 0xff, ETH_ALEN); - memset(mgmt->bssid, 0xff, ETH_ALEN); - } - pos = skb_put(skb, 2 + ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ssid_len; - memcpy(pos, ssid, ssid_len); - - supp_rates = skb_put(skb, 2); - supp_rates[0] = WLAN_EID_SUPP_RATES; - supp_rates[1] = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *rate = &sband->bitrates[i]; - if (esupp_rates) { - pos = skb_put(skb, 1); - esupp_rates[1]++; - } else if (supp_rates[1] == 8) { - esupp_rates = skb_put(skb, 3); - esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES; - esupp_rates[1] = 1; - pos = &esupp_rates[2]; - } else { - pos = skb_put(skb, 1); - supp_rates[1]++; - } - *pos = rate->bitrate / 5; - } - - ieee80211_sta_tx(dev, skb, 0); -} - - -static int ieee80211_sta_wep_configured(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (!sdata || !sdata->default_key || - sdata->default_key->conf.alg != ALG_WEP) - return 0; - return 1; -} - - -static void ieee80211_auth_completed(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - printk(KERN_DEBUG "%s: authenticated\n", dev->name); - ifsta->flags |= IEEE80211_STA_AUTHENTICATED; - ieee80211_associate(dev, ifsta); -} - - -static void ieee80211_auth_challenge(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - u8 *pos; - struct ieee802_11_elems elems; - - printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name); - pos = mgmt->u.auth.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); - if (!elems.challenge) { - printk(KERN_DEBUG "%s: no challenge IE in shared key auth " - "frame\n", dev->name); - return; - } - ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2, - elems.challenge_len + 2, 1); -} - -static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid, - u8 dialog_token, u16 status, u16 policy, - u16 buf_size, u16 timeout) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 + - sizeof(mgmt->u.action.u.addba_resp)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer " - "for addba resp frame\n", dev->name); - return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp)); - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP; - mgmt->u.action.u.addba_resp.dialog_token = dialog_token; - - capab = (u16)(policy << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */ - - mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab); - mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_resp.status = cpu_to_le16(status); - - ieee80211_sta_tx(dev, skb, 0); - - return; -} - -void ieee80211_send_addba_request(struct net_device *dev, const u8 *da, - u16 tid, u8 dialog_token, u16 start_seq_num, - u16 agg_size, u16 timeout) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 capab; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 + - sizeof(mgmt->u.action.u.addba_req)); - - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for addba request frame\n", dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req)); - - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ; - - mgmt->u.action.u.addba_req.dialog_token = dialog_token; - capab = (u16)(1 << 1); /* bit 1 aggregation policy */ - capab |= (u16)(tid << 2); /* bit 5:2 TID number */ - capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */ - - mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab); - - mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout); - mgmt->u.action.u.addba_req.start_seq_num = - cpu_to_le16(start_seq_num << 4); - - ieee80211_sta_tx(dev, skb, 0); -} - -static void ieee80211_sta_process_addba_request(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct ieee80211_conf *conf = &hw->conf; - struct sta_info *sta; - struct tid_ampdu_rx *tid_agg_rx; - u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status; - u8 dialog_token; - int ret = -EOPNOTSUPP; - DECLARE_MAC_BUF(mac); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) - return; - - /* extract session parameters from addba request frame */ - dialog_token = mgmt->u.action.u.addba_req.dialog_token; - timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout); - start_seq_num = - le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4; - - capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); - ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1; - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6; - - status = WLAN_STATUS_REQUEST_DECLINED; - - /* sanity check for incoming parameters: - * check if configuration can support the BA policy - * and if buffer size does not exceeds max value */ - if (((ba_policy != 1) - && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA))) - || (buf_size > IEEE80211_MAX_AMPDU_BUF)) { - status = WLAN_STATUS_INVALID_QOS_PARAM; -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "Block Ack Req with bad params from " - "%s on tid %u. policy %d, buffer size %d\n", - print_mac(mac, mgmt->sa), tid, ba_policy, - buf_size); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end_no_lock; - } - /* determine default buffer size */ - if (buf_size == 0) { - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[conf->channel->band]; - buf_size = IEEE80211_MIN_AMPDU_BUF; - buf_size = buf_size << sband->ht_info.ampdu_factor; - } - - tid_agg_rx = &sta->ampdu_mlme.tid_rx[tid]; - - /* examine state machine */ - spin_lock_bh(&sta->ampdu_mlme.ampdu_rx); - - if (tid_agg_rx->state != HT_AGG_STATE_IDLE) { -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "unexpected Block Ack Req from " - "%s on tid %u\n", - print_mac(mac, mgmt->sa), tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - goto end; - } - - /* prepare reordering buffer */ - tid_agg_rx->reorder_buf = - kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC); - if ((!tid_agg_rx->reorder_buf) && net_ratelimit()) { - printk(KERN_ERR "can not allocate reordering buffer " - "to tid %d\n", tid); - goto end; - } - memset(tid_agg_rx->reorder_buf, 0, - buf_size * sizeof(struct sk_buf *)); - - if (local->ops->ampdu_action) - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START, - sta->addr, tid, &start_seq_num); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx A-MPDU on tid %d result %d", tid, ret); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (ret) { - kfree(tid_agg_rx->reorder_buf); - goto end; - } - - /* change state and send addba resp */ - tid_agg_rx->state = HT_AGG_STATE_OPERATIONAL; - tid_agg_rx->dialog_token = dialog_token; - tid_agg_rx->ssn = start_seq_num; - tid_agg_rx->head_seq_num = start_seq_num; - tid_agg_rx->buf_size = buf_size; - tid_agg_rx->timeout = timeout; - tid_agg_rx->stored_mpdu_num = 0; - status = WLAN_STATUS_SUCCESS; -end: - spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx); - -end_no_lock: - ieee80211_send_addba_resp(sta->dev, sta->addr, tid, dialog_token, - status, 1, buf_size, timeout); - sta_info_put(sta); -} - -static void ieee80211_sta_process_addba_resp(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - u16 capab; - u16 tid; - u8 *state; - - sta = sta_info_get(local, mgmt->sa); - if (!sta) - return; - - capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab); - tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2; - - state = &sta->ampdu_mlme.tid_tx[tid].state; - - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - - if (mgmt->u.action.u.addba_resp.dialog_token != - sta->ampdu_mlme.tid_tx[tid].dialog_token) { - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - sta_info_put(sta); - return; - } - - del_timer_sync(&sta->ampdu_mlme.tid_tx[tid].addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - if (le16_to_cpu(mgmt->u.action.u.addba_resp.status) - == WLAN_STATUS_SUCCESS) { - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - printk(KERN_DEBUG "state not HT_ADDBA_REQUESTED_MSK:" - "%d\n", *state); - sta_info_put(sta); - return; - } - - if (*state & HT_ADDBA_RECEIVED_MSK) - printk(KERN_DEBUG "double addBA response\n"); - - *state |= HT_ADDBA_RECEIVED_MSK; - sta->ampdu_mlme.tid_tx[tid].addba_req_num = 0; - - if (*state == HT_AGG_STATE_OPERATIONAL) { - printk(KERN_DEBUG "Aggregation on for tid %d \n", tid); - ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]); - } - - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - printk(KERN_DEBUG "recipient accepted agg: tid %d \n", tid); - } else { - printk(KERN_DEBUG "recipient rejected agg: tid %d \n", tid); - - sta->ampdu_mlme.tid_tx[tid].addba_req_num++; - /* this will allow the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - ieee80211_stop_tx_ba_session(hw, sta->addr, tid, - WLAN_BACK_INITIATOR); - } - sta_info_put(sta); -} - -void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid, - u16 initiator, u16 reason_code) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u16 params; - - skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 + - sizeof(mgmt->u.action.u.delba)); - - if (!skb) { - printk(KERN_ERR "%s: failed to allocate buffer " - "for delba frame\n", dev->name); - return; - } - - skb_reserve(skb, local->hw.extra_tx_headroom); - mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24); - memset(mgmt, 0, 24); - memcpy(mgmt->da, da, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - if (sdata->vif.type == IEEE80211_IF_TYPE_AP) - memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN); - else - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_ACTION); - - skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba)); - - mgmt->u.action.category = WLAN_CATEGORY_BACK; - mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA; - params = (u16)(initiator << 11); /* bit 11 initiator */ - params |= (u16)(tid << 12); /* bit 15:12 TID number */ - - mgmt->u.action.u.delba.params = cpu_to_le16(params); - mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code); - - ieee80211_sta_tx(dev, skb, 0); -} - -void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid, - u16 initiator, u16 reason) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - int ret, i; - - sta = sta_info_get(local, ra); - if (!sta) - return; - - /* check if TID is in operational state */ - spin_lock_bh(&sta->ampdu_mlme.ampdu_rx); - if (sta->ampdu_mlme.tid_rx[tid].state - != HT_AGG_STATE_OPERATIONAL) { - spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx); - sta_info_put(sta); - return; - } - sta->ampdu_mlme.tid_rx[tid].state = - HT_AGG_STATE_REQ_STOP_BA_MSK | - (initiator << HT_AGG_STATE_INITIATOR_SHIFT); - spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx); - - /* stop HW Rx aggregation. ampdu_action existence - * already verified in session init so we add the BUG_ON */ - BUG_ON(!local->ops->ampdu_action); - - ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP, - ra, tid, NULL); - if (ret) - printk(KERN_DEBUG "HW problem - can not stop rx " - "aggergation for tid %d\n", tid); - - /* shutdown timer has not expired */ - if (initiator != WLAN_BACK_TIMER) - del_timer_sync(&sta->ampdu_mlme.tid_rx[tid]. - session_timer); - - /* check if this is a self generated aggregation halt */ - if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER) - ieee80211_send_delba(dev, ra, tid, 0, reason); - - /* free the reordering buffer */ - for (i = 0; i < sta->ampdu_mlme.tid_rx[tid].buf_size; i++) { - if (sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]) { - /* release the reordered frames */ - dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]); - sta->ampdu_mlme.tid_rx[tid].stored_mpdu_num--; - sta->ampdu_mlme.tid_rx[tid].reorder_buf[i] = NULL; - } - } - kfree(sta->ampdu_mlme.tid_rx[tid].reorder_buf); - - sta->ampdu_mlme.tid_rx[tid].state = HT_AGG_STATE_IDLE; - sta_info_put(sta); -} - - -static void ieee80211_sta_process_delba(struct net_device *dev, - struct ieee80211_mgmt *mgmt, size_t len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - u16 tid, params; - u16 initiator; - DECLARE_MAC_BUF(mac); - - sta = sta_info_get(local, mgmt->sa); - if (!sta) - return; - - params = le16_to_cpu(mgmt->u.action.u.delba.params); - tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12; - initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11; - -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n", - print_mac(mac, mgmt->sa), - initiator ? "recipient" : "initiator", tid, - mgmt->u.action.u.delba.reason_code); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - - if (initiator == WLAN_BACK_INITIATOR) - ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid, - WLAN_BACK_INITIATOR, 0); - else { /* WLAN_BACK_RECIPIENT */ - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - sta->ampdu_mlme.tid_tx[tid].state = - HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid, - WLAN_BACK_RECIPIENT); - } - sta_info_put(sta); -} - -/* - * After sending add Block Ack request we activated a timer until - * add Block Ack response will arrive from the recipient. - * If this timer expires sta_addba_resp_timer_expired will be executed. - */ -void sta_addba_resp_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and both sta_info and TID are needed, so init - * flow in sta_info_add gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u16 tid = *(int *)data; - struct sta_info *temp_sta = container_of((void *)data, - struct sta_info, timer_to_tid[tid]); - - struct ieee80211_local *local = temp_sta->local; - struct ieee80211_hw *hw = &local->hw; - struct sta_info *sta; - u8 *state; - - sta = sta_info_get(local, temp_sta->addr); - if (!sta) - return; - - state = &sta->ampdu_mlme.tid_tx[tid].state; - /* check if the TID waits for addBA response */ - spin_lock_bh(&sta->ampdu_mlme.ampdu_tx); - if (!(*state & HT_ADDBA_REQUESTED_MSK)) { - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - *state = HT_AGG_STATE_IDLE; - printk(KERN_DEBUG "timer expired on tid %d but we are not " - "expecting addBA response there", tid); - goto timer_expired_exit; - } - - printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); - - /* go through the state check in stop_BA_session */ - *state = HT_AGG_STATE_OPERATIONAL; - spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx); - ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid, - WLAN_BACK_INITIATOR); - -timer_expired_exit: - sta_info_put(sta); -} - -/* - * After receiving Block Ack Request (BAR) we activated a - * timer after each frame arrives from the originator. - * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed. - */ -void sta_rx_agg_session_timer_expired(unsigned long data) -{ - /* not an elegant detour, but there is no choice as the timer passes - * only one argument, and verious sta_info are needed here, so init - * flow in sta_info_add gives the TID as data, while the timer_to_id - * array gives the sta through container_of */ - u8 *ptid = (u8 *)data; - u8 *timer_to_id = ptid - *ptid; - struct sta_info *sta = container_of(timer_to_id, struct sta_info, - timer_to_tid[0]); - - printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); - ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr, (u16)*ptid, - WLAN_BACK_TIMER, - WLAN_REASON_QSTA_TIMEOUT); -} - - -static void ieee80211_rx_mgmt_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u16 auth_alg, auth_transaction, status_code; - DECLARE_MAC_BUF(mac); - - if (ifsta->state != IEEE80211_AUTHENTICATE && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) { - printk(KERN_DEBUG "%s: authentication frame received from " - "%s, but not in authenticate state - ignored\n", - dev->name, print_mac(mac, mgmt->sa)); - return; - } - - if (len < 24 + 6) { - printk(KERN_DEBUG "%s: too short (%zd) authentication frame " - "received from %s - ignored\n", - dev->name, len, print_mac(mac, mgmt->sa)); - return; - } - - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: authentication frame received from " - "unknown AP (SA=%s BSSID=%s) - " - "ignored\n", dev->name, print_mac(mac, mgmt->sa), - print_mac(mac, mgmt->bssid)); - return; - } - - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: authentication frame received from " - "unknown BSSID (SA=%s BSSID=%s) - " - "ignored\n", dev->name, print_mac(mac, mgmt->sa), - print_mac(mac, mgmt->bssid)); - return; - } - - auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); - auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); - status_code = le16_to_cpu(mgmt->u.auth.status_code); - - printk(KERN_DEBUG "%s: RX authentication from %s (alg=%d " - "transaction=%d status=%d)\n", - dev->name, print_mac(mac, mgmt->sa), auth_alg, - auth_transaction, status_code); - - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - /* IEEE 802.11 standard does not require authentication in IBSS - * networks and most implementations do not seem to use it. - * However, try to reply to authentication attempts if someone - * has actually implemented this. - * TODO: Could implement shared key authentication. */ - if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) { - printk(KERN_DEBUG "%s: unexpected IBSS authentication " - "frame (alg=%d transaction=%d)\n", - dev->name, auth_alg, auth_transaction); - return; - } - ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0); - } - - if (auth_alg != ifsta->auth_alg || - auth_transaction != ifsta->auth_transaction) { - printk(KERN_DEBUG "%s: unexpected authentication frame " - "(alg=%d transaction=%d)\n", - dev->name, auth_alg, auth_transaction); - return; - } - - if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: AP denied authentication (auth_alg=%d " - "code=%d)\n", dev->name, ifsta->auth_alg, status_code); - if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) { - u8 algs[3]; - const int num_algs = ARRAY_SIZE(algs); - int i, pos; - algs[0] = algs[1] = algs[2] = 0xff; - if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN) - algs[0] = WLAN_AUTH_OPEN; - if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY) - algs[1] = WLAN_AUTH_SHARED_KEY; - if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP) - algs[2] = WLAN_AUTH_LEAP; - if (ifsta->auth_alg == WLAN_AUTH_OPEN) - pos = 0; - else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY) - pos = 1; - else - pos = 2; - for (i = 0; i < num_algs; i++) { - pos++; - if (pos >= num_algs) - pos = 0; - if (algs[pos] == ifsta->auth_alg || - algs[pos] == 0xff) - continue; - if (algs[pos] == WLAN_AUTH_SHARED_KEY && - !ieee80211_sta_wep_configured(dev)) - continue; - ifsta->auth_alg = algs[pos]; - printk(KERN_DEBUG "%s: set auth_alg=%d for " - "next try\n", - dev->name, ifsta->auth_alg); - break; - } - } - return; - } - - switch (ifsta->auth_alg) { - case WLAN_AUTH_OPEN: - case WLAN_AUTH_LEAP: - ieee80211_auth_completed(dev, ifsta); - break; - case WLAN_AUTH_SHARED_KEY: - if (ifsta->auth_transaction == 4) - ieee80211_auth_completed(dev, ifsta); - else - ieee80211_auth_challenge(dev, ifsta, mgmt, len); - break; - } -} - - -static void ieee80211_rx_mgmt_deauth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - u16 reason_code; - DECLARE_MAC_BUF(mac); - - if (len < 24 + 2) { - printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame " - "received from %s - ignored\n", - dev->name, len, print_mac(mac, mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: deauthentication frame received from " - "unknown AP (SA=%s BSSID=%s) - " - "ignored\n", dev->name, print_mac(mac, mgmt->sa), - print_mac(mac, mgmt->bssid)); - return; - } - - reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - - printk(KERN_DEBUG "%s: RX deauthentication from %s" - " (reason=%d)\n", - dev->name, print_mac(mac, mgmt->sa), reason_code); - - if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) { - printk(KERN_DEBUG "%s: deauthenticated\n", dev->name); - } - - if (ifsta->state == IEEE80211_AUTHENTICATE || - ifsta->state == IEEE80211_ASSOCIATE || - ifsta->state == IEEE80211_ASSOCIATED) { - ifsta->state = IEEE80211_AUTHENTICATE; - mod_timer(&ifsta->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); - } - - ieee80211_set_disassoc(dev, ifsta, 1); - ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED; -} - - -static void ieee80211_rx_mgmt_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - u16 reason_code; - DECLARE_MAC_BUF(mac); - - if (len < 24 + 2) { - printk(KERN_DEBUG "%s: too short (%zd) disassociation frame " - "received from %s - ignored\n", - dev->name, len, print_mac(mac, mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: disassociation frame received from " - "unknown AP (SA=%s BSSID=%s) - " - "ignored\n", dev->name, print_mac(mac, mgmt->sa), - print_mac(mac, mgmt->bssid)); - return; - } - - reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); - - printk(KERN_DEBUG "%s: RX disassociation from %s" - " (reason=%d)\n", - dev->name, print_mac(mac, mgmt->sa), reason_code); - - if (ifsta->flags & IEEE80211_STA_ASSOCIATED) - printk(KERN_DEBUG "%s: disassociated\n", dev->name); - - if (ifsta->state == IEEE80211_ASSOCIATED) { - ifsta->state = IEEE80211_ASSOCIATE; - mod_timer(&ifsta->timer, jiffies + - IEEE80211_RETRY_AUTH_INTERVAL); - } - - ieee80211_set_disassoc(dev, ifsta, 0); -} - - -static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - int reassoc) -{ - struct ieee80211_local *local = sdata->local; - struct net_device *dev = sdata->dev; - struct ieee80211_supported_band *sband; - struct sta_info *sta; - u64 rates, basic_rates; - u16 capab_info, status_code, aid; - struct ieee802_11_elems elems; - struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf; - u8 *pos; - int i, j; - DECLARE_MAC_BUF(mac); - bool have_higher_than_11mbit = false; - - /* AssocResp and ReassocResp have identical structure, so process both - * of them in this function. */ - - if (ifsta->state != IEEE80211_ASSOCIATE) { - printk(KERN_DEBUG "%s: association frame received from " - "%s, but not in associate state - ignored\n", - dev->name, print_mac(mac, mgmt->sa)); - return; - } - - if (len < 24 + 6) { - printk(KERN_DEBUG "%s: too short (%zd) association frame " - "received from %s - ignored\n", - dev->name, len, print_mac(mac, mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: association frame received from " - "unknown AP (SA=%s BSSID=%s) - " - "ignored\n", dev->name, print_mac(mac, mgmt->sa), - print_mac(mac, mgmt->bssid)); - return; - } - - capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); - status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); - aid = le16_to_cpu(mgmt->u.assoc_resp.aid); - - printk(KERN_DEBUG "%s: RX %sssocResp from %s (capab=0x%x " - "status=%d aid=%d)\n", - dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa), - capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); - - if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: AP denied association (code=%d)\n", - dev->name, status_code); - /* if this was a reassociation, ensure we try a "full" - * association next time. This works around some broken APs - * which do not correctly reject reassociation requests. */ - ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - return; - } - - if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) - printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not " - "set\n", dev->name, aid); - aid &= ~(BIT(15) | BIT(14)); - - pos = mgmt->u.assoc_resp.variable; - ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); - - if (!elems.supp_rates) { - printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n", - dev->name); - return; - } - - printk(KERN_DEBUG "%s: associated\n", dev->name); - ifsta->aid = aid; - ifsta->ap_capab = capab_info; - - kfree(ifsta->assocresp_ies); - ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt); - ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL); - if (ifsta->assocresp_ies) - memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len); - - /* Add STA entry for the AP */ - sta = sta_info_get(local, ifsta->bssid); - if (!sta) { - struct ieee80211_sta_bss *bss; - sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL); - if (!sta) { - printk(KERN_DEBUG "%s: failed to add STA entry for the" - " AP\n", dev->name); - return; - } - bss = ieee80211_rx_bss_get(dev, ifsta->bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len); - if (bss) { - sta->last_rssi = bss->rssi; - sta->last_signal = bss->signal; - sta->last_noise = bss->noise; - ieee80211_rx_bss_put(dev, bss); - } - } - - sta->dev = dev; - sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP | - WLAN_STA_AUTHORIZED; - - rates = 0; - basic_rates = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - for (i = 0; i < elems.supp_rates_len; i++) { - int rate = (elems.supp_rates[i] & 0x7f) * 5; - - if (rate > 110) - have_higher_than_11mbit = true; - - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) - rates |= BIT(j); - if (elems.supp_rates[i] & 0x80) - basic_rates |= BIT(j); - } - } - - for (i = 0; i < elems.ext_supp_rates_len; i++) { - int rate = (elems.ext_supp_rates[i] & 0x7f) * 5; - - if (rate > 110) - have_higher_than_11mbit = true; - - for (j = 0; j < sband->n_bitrates; j++) { - if (sband->bitrates[j].bitrate == rate) - rates |= BIT(j); - if (elems.ext_supp_rates[i] & 0x80) - basic_rates |= BIT(j); - } - } - - sta->supp_rates[local->hw.conf.channel->band] = rates; - sdata->basic_rates = basic_rates; - - /* cf. IEEE 802.11 9.2.12 */ - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && - have_higher_than_11mbit) - sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; - else - sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; - - if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param && - local->ops->conf_ht) { - struct ieee80211_ht_bss_info bss_info; - - ieee80211_ht_cap_ie_to_ht_info( - (struct ieee80211_ht_cap *) - elems.ht_cap_elem, &sta->ht_info); - ieee80211_ht_addt_info_ie_to_ht_bss_info( - (struct ieee80211_ht_addt_info *) - elems.ht_info_elem, &bss_info); - ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info); - } - - rate_control_rate_init(sta, local); - - if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { - sta->flags |= WLAN_STA_WME; - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, - elems.wmm_param_len); - } - - /* set AID, ieee80211_set_associated() will tell the driver */ - bss_conf->aid = aid; - ieee80211_set_associated(dev, ifsta, 1); - - sta_info_put(sta); - - ieee80211_associated(dev, ifsta); -} - - -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_add(struct net_device *dev, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)]; - local->sta_bss_hash[STA_HASH(bss->bssid)] = bss; -} - - -/* Caller must hold local->sta_bss_lock */ -static void __ieee80211_rx_bss_hash_del(struct net_device *dev, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *b, *prev = NULL; - b = local->sta_bss_hash[STA_HASH(bss->bssid)]; - while (b) { - if (b == bss) { - if (!prev) - local->sta_bss_hash[STA_HASH(bss->bssid)] = - bss->hnext; - else - prev->hnext = bss->hnext; - break; - } - prev = b; - b = b->hnext; - } -} - - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - bss = kzalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->bssid, bssid, ETH_ALEN); - bss->freq = freq; - if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) { - memcpy(bss->ssid, ssid, ssid_len); - bss->ssid_len = ssid_len; - } - - spin_lock_bh(&local->sta_bss_lock); - /* TODO: order by RSSI? */ - list_add_tail(&bss->list, &local->sta_bss_list); - __ieee80211_rx_bss_hash_add(dev, bss); - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - - -static struct ieee80211_sta_bss * -ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq, - u8 *ssid, u8 ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - bss = local->sta_bss_hash[STA_HASH(bssid)]; - while (bss) { - if (!memcmp(bss->bssid, bssid, ETH_ALEN) && - bss->freq == freq && - bss->ssid_len == ssid_len && - (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) { - atomic_inc(&bss->users); - break; - } - bss = bss->hnext; - } - spin_unlock_bh(&local->sta_bss_lock); - return bss; -} - - -static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss) -{ - kfree(bss->wpa_ie); - kfree(bss->rsn_ie); - kfree(bss->wmm_ie); - kfree(bss->ht_ie); - kfree(bss); -} - - -static void ieee80211_rx_bss_put(struct net_device *dev, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - if (!atomic_dec_and_test(&bss->users)) - return; - - spin_lock_bh(&local->sta_bss_lock); - __ieee80211_rx_bss_hash_del(dev, bss); - list_del(&bss->list); - spin_unlock_bh(&local->sta_bss_lock); - ieee80211_rx_bss_free(bss); -} - - -void ieee80211_rx_bss_list_init(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - spin_lock_init(&local->sta_bss_lock); - INIT_LIST_HEAD(&local->sta_bss_list); -} - - -void ieee80211_rx_bss_list_deinit(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss, *tmp; - - list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list) - ieee80211_rx_bss_put(dev, bss); -} - - -static void ieee80211_rx_bss_info(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status, - int beacon) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee802_11_elems elems; - size_t baselen; - int freq, clen; - struct ieee80211_sta_bss *bss; - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u64 timestamp; - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - - if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN)) - return; /* ignore ProbeResp to foreign address */ - -#if 0 - printk(KERN_DEBUG "%s: RX %s from %s to %s\n", - dev->name, beacon ? "Beacon" : "Probe Response", - print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da)); -#endif - - baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt; - if (baselen > len) - return; - - timestamp = le64_to_cpu(mgmt->u.beacon.timestamp); - - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon && - memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - static unsigned long last_tsf_debug = 0; - u64 tsf; - if (local->ops->get_tsf) - tsf = local->ops->get_tsf(local_to_hw(local)); - else - tsf = -1LLU; - if (time_after(jiffies, last_tsf_debug + 5 * HZ)) { - printk(KERN_DEBUG "RX beacon SA=%s BSSID=" - "%s TSF=0x%llx BCN=0x%llx diff=%lld " - "@%lu\n", - print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->bssid), - (unsigned long long)tsf, - (unsigned long long)timestamp, - (unsigned long long)(tsf - timestamp), - jiffies); - last_tsf_debug = jiffies; - } -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - } - - ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems); - - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates && - memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 && - (sta = sta_info_get(local, mgmt->sa))) { - struct ieee80211_supported_band *sband; - struct ieee80211_rate *bitrates; - size_t num_rates; - u64 supp_rates, prev_rates; - int i, j; - - sband = local->hw.wiphy->bands[rx_status->band]; - - if (!sband) { - WARN_ON(1); - sband = local->hw.wiphy->bands[ - local->hw.conf.channel->band]; - } - - bitrates = sband->bitrates; - num_rates = sband->n_bitrates; - - supp_rates = 0; - for (i = 0; i < elems.supp_rates_len + - elems.ext_supp_rates_len; i++) { - u8 rate = 0; - int own_rate; - if (i < elems.supp_rates_len) - rate = elems.supp_rates[i]; - else if (elems.ext_supp_rates) - rate = elems.ext_supp_rates - [i - elems.supp_rates_len]; - own_rate = 5 * (rate & 0x7f); - for (j = 0; j < num_rates; j++) - if (bitrates[j].bitrate == own_rate) - supp_rates |= BIT(j); - } - - prev_rates = sta->supp_rates[rx_status->band]; - sta->supp_rates[rx_status->band] &= supp_rates; - if (sta->supp_rates[rx_status->band] == 0) { - /* No matching rates - this should not really happen. - * Make sure that at least one rate is marked - * supported to avoid issues with TX rate ctrl. */ - sta->supp_rates[rx_status->band] = - sdata->u.sta.supp_rates_bits[rx_status->band]; - } - if (sta->supp_rates[rx_status->band] != prev_rates) { - printk(KERN_DEBUG "%s: updated supp_rates set for " - "%s based on beacon info (0x%llx & 0x%llx -> " - "0x%llx)\n", - dev->name, print_mac(mac, sta->addr), - (unsigned long long) prev_rates, - (unsigned long long) supp_rates, - (unsigned long long) sta->supp_rates[rx_status->band]); - } - sta_info_put(sta); - } - - if (!elems.ssid) - return; - - if (elems.ds_params && elems.ds_params_len == 1) - freq = ieee80211_channel_to_frequency(elems.ds_params[0]); - else - freq = rx_status->freq; - - bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq, - elems.ssid, elems.ssid_len); - if (!bss) { - bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq, - elems.ssid, elems.ssid_len); - if (!bss) - return; - } else { -#if 0 - /* TODO: order by RSSI? */ - spin_lock_bh(&local->sta_bss_lock); - list_move_tail(&bss->list, &local->sta_bss_list); - spin_unlock_bh(&local->sta_bss_lock); -#endif - } - - bss->band = rx_status->band; - - if (bss->probe_resp && beacon) { - /* Do not allow beacon to override data from Probe Response. */ - ieee80211_rx_bss_put(dev, bss); - return; - } - - /* save the ERP value so that it is available at association time */ - if (elems.erp_info && elems.erp_info_len >= 1) { - bss->erp_value = elems.erp_info[0]; - bss->has_erp_value = 1; - } - - bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int); - bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info); - - bss->supp_rates_len = 0; - if (elems.supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems.supp_rates_len) - clen = elems.supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], elems.supp_rates, - clen); - bss->supp_rates_len += clen; - } - if (elems.ext_supp_rates) { - clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len; - if (clen > elems.ext_supp_rates_len) - clen = elems.ext_supp_rates_len; - memcpy(&bss->supp_rates[bss->supp_rates_len], - elems.ext_supp_rates, clen); - bss->supp_rates_len += clen; - } - - if (elems.wpa && - (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len || - memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) { - kfree(bss->wpa_ie); - bss->wpa_ie = kmalloc(elems.wpa_len + 2, GFP_ATOMIC); - if (bss->wpa_ie) { - memcpy(bss->wpa_ie, elems.wpa - 2, elems.wpa_len + 2); - bss->wpa_ie_len = elems.wpa_len + 2; - } else - bss->wpa_ie_len = 0; - } else if (!elems.wpa && bss->wpa_ie) { - kfree(bss->wpa_ie); - bss->wpa_ie = NULL; - bss->wpa_ie_len = 0; - } - - if (elems.rsn && - (!bss->rsn_ie || bss->rsn_ie_len != elems.rsn_len || - memcmp(bss->rsn_ie, elems.rsn, elems.rsn_len))) { - kfree(bss->rsn_ie); - bss->rsn_ie = kmalloc(elems.rsn_len + 2, GFP_ATOMIC); - if (bss->rsn_ie) { - memcpy(bss->rsn_ie, elems.rsn - 2, elems.rsn_len + 2); - bss->rsn_ie_len = elems.rsn_len + 2; - } else - bss->rsn_ie_len = 0; - } else if (!elems.rsn && bss->rsn_ie) { - kfree(bss->rsn_ie); - bss->rsn_ie = NULL; - bss->rsn_ie_len = 0; - } - - if (elems.wmm_param && - (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len || - memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) { - kfree(bss->wmm_ie); - bss->wmm_ie = kmalloc(elems.wmm_param_len + 2, GFP_ATOMIC); - if (bss->wmm_ie) { - memcpy(bss->wmm_ie, elems.wmm_param - 2, - elems.wmm_param_len + 2); - bss->wmm_ie_len = elems.wmm_param_len + 2; - } else - bss->wmm_ie_len = 0; - } else if (!elems.wmm_param && bss->wmm_ie) { - kfree(bss->wmm_ie); - bss->wmm_ie = NULL; - bss->wmm_ie_len = 0; - } - if (elems.ht_cap_elem && - (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len || - memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) { - kfree(bss->ht_ie); - bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC); - if (bss->ht_ie) { - memcpy(bss->ht_ie, elems.ht_cap_elem - 2, - elems.ht_cap_elem_len + 2); - bss->ht_ie_len = elems.ht_cap_elem_len + 2; - } else - bss->ht_ie_len = 0; - } else if (!elems.ht_cap_elem && bss->ht_ie) { - kfree(bss->ht_ie); - bss->ht_ie = NULL; - bss->ht_ie_len = 0; - } - - bss->timestamp = timestamp; - bss->last_update = jiffies; - bss->rssi = rx_status->ssi; - bss->signal = rx_status->signal; - bss->noise = rx_status->noise; - if (!beacon) - bss->probe_resp++; - ieee80211_rx_bss_put(dev, bss); -} - - -static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 0); -} - - -static void ieee80211_rx_mgmt_beacon(struct net_device *dev, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_sta *ifsta; - size_t baselen; - struct ieee802_11_elems elems; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_conf *conf = &local->hw.conf; - u32 changed = 0; - - ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1); - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - ifsta = &sdata->u.sta; - - if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) || - memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) - return; - - /* Process beacon from the current BSS */ - baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt; - if (baselen > len) - return; - - ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems); - - if (elems.erp_info && elems.erp_info_len >= 1) - changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]); - - if (elems.ht_cap_elem && elems.ht_info_elem && - elems.wmm_param && local->ops->conf_ht && - conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) { - struct ieee80211_ht_bss_info bss_info; - - ieee80211_ht_addt_info_ie_to_ht_bss_info( - (struct ieee80211_ht_addt_info *) - elems.ht_info_elem, &bss_info); - /* check if AP changed bss inforamation */ - if ((conf->ht_bss_conf.primary_channel != - bss_info.primary_channel) || - (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) || - (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode)) - ieee80211_hw_config_ht(local, 1, &conf->ht_conf, - &bss_info); - } - - if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) { - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, - elems.wmm_param_len); - } - - ieee80211_bss_info_change_notify(sdata, changed); -} - - -static void ieee80211_rx_mgmt_probe_req(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int tx_last_beacon; - struct sk_buff *skb; - struct ieee80211_mgmt *resp; - u8 *pos, *end; - DECLARE_MAC_BUF(mac); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); -#endif - - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS || - ifsta->state != IEEE80211_IBSS_JOINED || - len < 24 + 2 || !ifsta->probe_resp) - return; - - if (local->ops->tx_last_beacon) - tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local)); - else - tx_last_beacon = 1; - -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX ProbeReq SA=%s DA=%s BSSID=" - "%s (tx_last_beacon=%d)\n", - dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da), - print_mac(mac3, mgmt->bssid), tx_last_beacon); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - - if (!tx_last_beacon) - return; - - if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 && - memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0) - return; - - end = ((u8 *) mgmt) + len; - pos = mgmt->u.probe_req.variable; - if (pos[0] != WLAN_EID_SSID || - pos + 2 + pos[1] > end) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq " - "from %s\n", - dev->name, print_mac(mac, mgmt->sa)); - } - return; - } - if (pos[1] != 0 && - (pos[1] != ifsta->ssid_len || - memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) { - /* Ignore ProbeReq for foreign SSID */ - return; - } - - /* Reply with ProbeResp */ - skb = skb_copy(ifsta->probe_resp, GFP_KERNEL); - if (!skb) - return; - - resp = (struct ieee80211_mgmt *) skb->data; - memcpy(resp->da, mgmt->sa, ETH_ALEN); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n", - dev->name, print_mac(mac, resp->da)); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - ieee80211_sta_tx(dev, skb, 0); -} - -static void ieee80211_rx_mgmt_action(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len) -{ - if (len < IEEE80211_MIN_ACTION_SIZE) - return; - - switch (mgmt->u.action.category) { - case WLAN_CATEGORY_BACK: - switch (mgmt->u.action.u.addba_req.action_code) { - case WLAN_ACTION_ADDBA_REQ: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_req))) - break; - ieee80211_sta_process_addba_request(dev, mgmt, len); - break; - case WLAN_ACTION_ADDBA_RESP: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.addba_resp))) - break; - ieee80211_sta_process_addba_resp(dev, mgmt, len); - break; - case WLAN_ACTION_DELBA: - if (len < (IEEE80211_MIN_ACTION_SIZE + - sizeof(mgmt->u.action.u.delba))) - break; - ieee80211_sta_process_delba(dev, mgmt, len); - break; - default: - if (net_ratelimit()) - printk(KERN_DEBUG "%s: Rx unknown A-MPDU action\n", - dev->name); - break; - } - break; - default: - break; - } -} - -void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_sta *ifsta; - struct ieee80211_mgmt *mgmt; - u16 fc; - - if (skb->len < 24) - goto fail; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = le16_to_cpu(mgmt->frame_control); - - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_PROBE_REQ: - case IEEE80211_STYPE_PROBE_RESP: - case IEEE80211_STYPE_BEACON: - memcpy(skb->cb, rx_status, sizeof(*rx_status)); - case IEEE80211_STYPE_AUTH: - case IEEE80211_STYPE_ASSOC_RESP: - case IEEE80211_STYPE_REASSOC_RESP: - case IEEE80211_STYPE_DEAUTH: - case IEEE80211_STYPE_DISASSOC: - case IEEE80211_STYPE_ACTION: - skb_queue_tail(&ifsta->skb_queue, skb); - queue_work(local->hw.workqueue, &ifsta->work); - return; - default: - printk(KERN_DEBUG "%s: received unknown management frame - " - "stype=%d\n", dev->name, - (fc & IEEE80211_FCTL_STYPE) >> 4); - break; - } - - fail: - kfree_skb(skb); -} - - -static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev, - struct sk_buff *skb) -{ - struct ieee80211_rx_status *rx_status; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_sta *ifsta; - struct ieee80211_mgmt *mgmt; - u16 fc; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; - - rx_status = (struct ieee80211_rx_status *) skb->cb; - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = le16_to_cpu(mgmt->frame_control); - - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_PROBE_REQ: - ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len, - rx_status); - break; - case IEEE80211_STYPE_PROBE_RESP: - ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status); - break; - case IEEE80211_STYPE_BEACON: - ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status); - break; - case IEEE80211_STYPE_AUTH: - ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len); - break; - case IEEE80211_STYPE_ASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0); - break; - case IEEE80211_STYPE_REASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1); - break; - case IEEE80211_STYPE_DEAUTH: - ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len); - break; - case IEEE80211_STYPE_DISASSOC: - ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len); - break; - case IEEE80211_STYPE_ACTION: - ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len); - break; - } - - kfree_skb(skb); -} - - -ieee80211_rx_result -ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_mgmt *mgmt; - u16 fc; - - if (skb->len < 2) - return RX_DROP_UNUSABLE; - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = le16_to_cpu(mgmt->frame_control); - - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) - return RX_CONTINUE; - - if (skb->len < 24) - return RX_DROP_MONITOR; - - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) { - if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) { - ieee80211_rx_mgmt_probe_resp(dev, mgmt, - skb->len, rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) { - ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, - rx_status); - dev_kfree_skb(skb); - return RX_QUEUED; - } - } - return RX_CONTINUE; -} - - -static int ieee80211_sta_active_ibss(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int active = 0; - struct sta_info *sta; - - read_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - if (sta->dev == dev && - time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL, - jiffies)) { - active++; - break; - } - } - read_unlock_bh(&local->sta_lock); - - return active; -} - - -static void ieee80211_sta_expire(struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta, *tmp; - LIST_HEAD(tmp_list); - DECLARE_MAC_BUF(mac); - - write_lock_bh(&local->sta_lock); - list_for_each_entry_safe(sta, tmp, &local->sta_list, list) - if (time_after(jiffies, sta->last_rx + - IEEE80211_IBSS_INACTIVITY_LIMIT)) { - printk(KERN_DEBUG "%s: expiring inactive STA %s\n", - dev->name, print_mac(mac, sta->addr)); - __sta_info_get(sta); - sta_info_remove(sta); - list_add(&sta->list, &tmp_list); - } - write_unlock_bh(&local->sta_lock); - - list_for_each_entry_safe(sta, tmp, &tmp_list, list) { - sta_info_free(sta); - sta_info_put(sta); - } -} - - -static void ieee80211_sta_merge_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); - - ieee80211_sta_expire(dev); - if (ieee80211_sta_active_ibss(dev)) - return; - - printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other " - "IBSS networks with same SSID (merge)\n", dev->name); - ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len); -} - - -void ieee80211_sta_timer(unsigned long data) -{ - struct ieee80211_sub_if_data *sdata = - (struct ieee80211_sub_if_data *) data; - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(&sdata->wdev); - - set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); -} - - -void ieee80211_sta_work(struct work_struct *work) -{ - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, u.sta.work); - struct net_device *dev = sdata->dev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_if_sta *ifsta; - struct sk_buff *skb; - - if (!netif_running(dev)) - return; - - if (local->sta_sw_scanning || local->sta_hw_scanning) - return; - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) { - printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface " - "(type=%d)\n", dev->name, sdata->vif.type); - return; - } - ifsta = &sdata->u.sta; - - while ((skb = skb_dequeue(&ifsta->skb_queue))) - ieee80211_sta_rx_queued_mgmt(dev, skb); - - if (ifsta->state != IEEE80211_AUTHENTICATE && - ifsta->state != IEEE80211_ASSOCIATE && - test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) { - if (ifsta->scan_ssid_len) - ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len); - else - ieee80211_sta_start_scan(dev, NULL, 0); - return; - } - - if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) { - if (ieee80211_sta_config_auth(dev, ifsta)) - return; - clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request); - } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request)) - return; - - switch (ifsta->state) { - case IEEE80211_DISABLED: - break; - case IEEE80211_AUTHENTICATE: - ieee80211_authenticate(dev, ifsta); - break; - case IEEE80211_ASSOCIATE: - ieee80211_associate(dev, ifsta); - break; - case IEEE80211_ASSOCIATED: - ieee80211_associated(dev, ifsta); - break; - case IEEE80211_IBSS_SEARCH: - ieee80211_sta_find_ibss(dev, ifsta); - break; - case IEEE80211_IBSS_JOINED: - ieee80211_sta_merge_ibss(dev, ifsta); - break; - default: - printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n", - ifsta->state); - break; - } - - if (ieee80211_privacy_mismatch(dev, ifsta)) { - printk(KERN_DEBUG "%s: privacy configuration mismatch and " - "mixed-cell disabled - disassociate\n", dev->name); - - ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED); - ieee80211_set_disassoc(dev, ifsta, 0); - } -} - - -static void ieee80211_sta_reset_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (local->ops->reset_tsf) { - /* Reset own TSF to allow time synchronization work. */ - local->ops->reset_tsf(local_to_hw(local)); - } - - ifsta->wmm_last_param_set = -1; /* allow any WMM update */ - - - if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN) - ifsta->auth_alg = WLAN_AUTH_OPEN; - else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY) - ifsta->auth_alg = WLAN_AUTH_SHARED_KEY; - else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP) - ifsta->auth_alg = WLAN_AUTH_LEAP; - else - ifsta->auth_alg = WLAN_AUTH_OPEN; - printk(KERN_DEBUG "%s: Initial auth_alg=%d\n", dev->name, - ifsta->auth_alg); - ifsta->auth_transaction = -1; - ifsta->flags &= ~IEEE80211_STA_ASSOCIATED; - ifsta->auth_tries = ifsta->assoc_tries = 0; - netif_carrier_off(dev); -} - - -void ieee80211_sta_req_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return; - - if ((ifsta->flags & (IEEE80211_STA_BSSID_SET | - IEEE80211_STA_AUTO_BSSID_SEL)) && - (ifsta->flags & (IEEE80211_STA_SSID_SET | - IEEE80211_STA_AUTO_SSID_SEL))) { - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); - } -} - -static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta, - const char *ssid, int ssid_len) -{ - int tmp, hidden_ssid; - - if (ssid_len == ifsta->ssid_len && - !memcmp(ifsta->ssid, ssid, ssid_len)) - return 1; - - if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) - return 0; - - hidden_ssid = 1; - tmp = ssid_len; - while (tmp--) { - if (ssid[tmp] != '\0') { - hidden_ssid = 0; - break; - } - } - - if (hidden_ssid && ifsta->ssid_len == ssid_len) - return 1; - - if (ssid_len == 1 && ssid[0] == ' ') - return 1; - - return 0; -} - -static int ieee80211_sta_config_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_sta_bss *bss, *selected = NULL; - int top_rssi = 0, freq; - - if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL | - IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) { - ifsta->state = IEEE80211_AUTHENTICATE; - ieee80211_sta_reset_auth(dev, ifsta); - return 0; - } - - spin_lock_bh(&local->sta_bss_lock); - freq = local->oper_channel->center_freq; - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (!(bss->capability & WLAN_CAPABILITY_ESS)) - continue; - - if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^ - !!sdata->default_key) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) && - bss->freq != freq) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) && - memcmp(bss->bssid, ifsta->bssid, ETH_ALEN)) - continue; - - if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) && - !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len)) - continue; - - if (!selected || top_rssi < bss->rssi) { - selected = bss; - top_rssi = bss->rssi; - } - } - if (selected) - atomic_inc(&selected->users); - spin_unlock_bh(&local->sta_bss_lock); - - if (selected) { - ieee80211_set_freq(local, selected->freq); - if (!(ifsta->flags & IEEE80211_STA_SSID_SET)) - ieee80211_sta_set_ssid(dev, selected->ssid, - selected->ssid_len); - ieee80211_sta_set_bssid(dev, selected->bssid); - ieee80211_rx_bss_put(dev, selected); - ifsta->state = IEEE80211_AUTHENTICATE; - ieee80211_sta_reset_auth(dev, ifsta); - return 0; - } else { - if (ifsta->state != IEEE80211_AUTHENTICATE) { - if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) - ieee80211_sta_start_scan(dev, NULL, 0); - else - ieee80211_sta_start_scan(dev, ifsta->ssid, - ifsta->ssid_len); - ifsta->state = IEEE80211_AUTHENTICATE; - set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request); - } else - ifsta->state = IEEE80211_DISABLED; - } - return -1; -} - -static int ieee80211_sta_join_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - int res, rates, i, j; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - struct ieee80211_tx_control control; - struct rate_selection ratesel; - u8 *pos; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - /* Remove possible STA entries from other IBSS networks. */ - sta_info_flush(local, NULL); - - if (local->ops->reset_tsf) { - /* Reset own TSF to allow time synchronization work. */ - local->ops->reset_tsf(local_to_hw(local)); - } - memcpy(ifsta->bssid, bss->bssid, ETH_ALEN); - res = ieee80211_if_config(dev); - if (res) - return res; - - local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - sdata->drop_unencrypted = bss->capability & - WLAN_CAPABILITY_PRIVACY ? 1 : 0; - - res = ieee80211_set_freq(local, bss->freq); - - if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) { - printk(KERN_DEBUG "%s: IBSS not allowed on frequency " - "%d MHz\n", dev->name, local->oper_channel->center_freq); - return -1; - } - - /* Set beacon template based on scan results */ - skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400); - do { - if (!skb) - break; - - skb_reserve(skb, local->hw.extra_tx_headroom); - - mgmt = (struct ieee80211_mgmt *) - skb_put(skb, 24 + sizeof(mgmt->u.beacon)); - memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon)); - mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_BEACON); - memset(mgmt->da, 0xff, ETH_ALEN); - memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN); - memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN); - mgmt->u.beacon.beacon_int = - cpu_to_le16(local->hw.conf.beacon_int); - mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability); - - pos = skb_put(skb, 2 + ifsta->ssid_len); - *pos++ = WLAN_EID_SSID; - *pos++ = ifsta->ssid_len; - memcpy(pos, ifsta->ssid, ifsta->ssid_len); - - rates = bss->supp_rates_len; - if (rates > 8) - rates = 8; - pos = skb_put(skb, 2 + rates); - *pos++ = WLAN_EID_SUPP_RATES; - *pos++ = rates; - memcpy(pos, bss->supp_rates, rates); - - if (bss->band == IEEE80211_BAND_2GHZ) { - pos = skb_put(skb, 2 + 1); - *pos++ = WLAN_EID_DS_PARAMS; - *pos++ = 1; - *pos++ = ieee80211_frequency_to_channel(bss->freq); - } - - pos = skb_put(skb, 2 + 2); - *pos++ = WLAN_EID_IBSS_PARAMS; - *pos++ = 2; - /* FIX: set ATIM window based on scan results */ - *pos++ = 0; - *pos++ = 0; - - if (bss->supp_rates_len > 8) { - rates = bss->supp_rates_len - 8; - pos = skb_put(skb, 2 + rates); - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = rates; - memcpy(pos, &bss->supp_rates[8], rates); - } - - memset(&control, 0, sizeof(control)); - rate_control_get_rate(dev, sband, skb, &ratesel); - if (!ratesel.rate) { - printk(KERN_DEBUG "%s: Failed to determine TX rate " - "for IBSS beacon\n", dev->name); - break; - } - control.vif = &sdata->vif; - control.tx_rate = ratesel.rate; - if (sdata->bss_conf.use_short_preamble && - ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) - control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE; - control.antenna_sel_tx = local->hw.conf.antenna_sel_tx; - control.flags |= IEEE80211_TXCTL_NO_ACK; - control.retry_limit = 1; - - ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC); - if (ifsta->probe_resp) { - mgmt = (struct ieee80211_mgmt *) - ifsta->probe_resp->data; - mgmt->frame_control = - IEEE80211_FC(IEEE80211_FTYPE_MGMT, - IEEE80211_STYPE_PROBE_RESP); - } else { - printk(KERN_DEBUG "%s: Could not allocate ProbeResp " - "template for IBSS\n", dev->name); - } - - if (local->ops->beacon_update && - local->ops->beacon_update(local_to_hw(local), - skb, &control) == 0) { - printk(KERN_DEBUG "%s: Configured IBSS beacon " - "template based on scan results\n", dev->name); - skb = NULL; - } - - rates = 0; - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - for (i = 0; i < bss->supp_rates_len; i++) { - int bitrate = (bss->supp_rates[i] & 0x7f) * 5; - for (j = 0; j < sband->n_bitrates; j++) - if (sband->bitrates[j].bitrate == bitrate) - rates |= BIT(j); - } - ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates; - } while (0); - - if (skb) { - printk(KERN_DEBUG "%s: Failed to configure IBSS beacon " - "template\n", dev->name); - dev_kfree_skb(skb); - } - - ifsta->state = IEEE80211_IBSS_JOINED; - mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL); - - ieee80211_rx_bss_put(dev, bss); - - return res; -} - - -static int ieee80211_sta_create_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_supported_band *sband; - u8 bssid[ETH_ALEN], *pos; - int i; - DECLARE_MAC_BUF(mac); - -#if 0 - /* Easier testing, use fixed BSSID. */ - memset(bssid, 0xfe, ETH_ALEN); -#else - /* Generate random, not broadcast, locally administered BSSID. Mix in - * own MAC address to make sure that devices that do not have proper - * random number generator get different BSSID. */ - get_random_bytes(bssid, ETH_ALEN); - for (i = 0; i < ETH_ALEN; i++) - bssid[i] ^= dev->dev_addr[i]; - bssid[0] &= ~0x01; - bssid[0] |= 0x02; -#endif - - printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n", - dev->name, print_mac(mac, bssid)); - - bss = ieee80211_rx_bss_add(dev, bssid, - local->hw.conf.channel->center_freq, - sdata->u.sta.ssid, sdata->u.sta.ssid_len); - if (!bss) - return -ENOMEM; - - bss->band = local->hw.conf.channel->band; - sband = local->hw.wiphy->bands[bss->band]; - - if (local->hw.conf.beacon_int == 0) - local->hw.conf.beacon_int = 100; - bss->beacon_int = local->hw.conf.beacon_int; - bss->last_update = jiffies; - bss->capability = WLAN_CAPABILITY_IBSS; - if (sdata->default_key) { - bss->capability |= WLAN_CAPABILITY_PRIVACY; - } else - sdata->drop_unencrypted = 0; - bss->supp_rates_len = sband->n_bitrates; - pos = bss->supp_rates; - for (i = 0; i < sband->n_bitrates; i++) { - int rate = sband->bitrates[i].bitrate; - *pos++ = (u8) (rate / 5); - } - - return ieee80211_sta_join_ibss(dev, ifsta, bss); -} - - -static int ieee80211_sta_find_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sta_bss *bss; - int found = 0; - u8 bssid[ETH_ALEN]; - int active_ibss; - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - - if (ifsta->ssid_len == 0) - return -EINVAL; - - active_ibss = ieee80211_sta_active_ibss(dev); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n", - dev->name, active_ibss); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - spin_lock_bh(&local->sta_bss_lock); - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (ifsta->ssid_len != bss->ssid_len || - memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0 - || !(bss->capability & WLAN_CAPABILITY_IBSS)) - continue; -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " bssid=%s found\n", - print_mac(mac, bss->bssid)); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - memcpy(bssid, bss->bssid, ETH_ALEN); - found = 1; - if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0) - break; - } - spin_unlock_bh(&local->sta_bss_lock); - -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " sta_find_ibss: selected %s current " - "%s\n", print_mac(mac, bssid), print_mac(mac2, ifsta->bssid)); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 && - (bss = ieee80211_rx_bss_get(dev, bssid, - local->hw.conf.channel->center_freq, - ifsta->ssid, ifsta->ssid_len))) { - printk(KERN_DEBUG "%s: Selected IBSS BSSID %s" - " based on configured SSID\n", - dev->name, print_mac(mac, bssid)); - return ieee80211_sta_join_ibss(dev, ifsta, bss); - } -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " did not try to join ibss\n"); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - - /* Selected IBSS not found in current scan results - try to scan */ - if (ifsta->state == IEEE80211_IBSS_JOINED && - !ieee80211_sta_active_ibss(dev)) { - mod_timer(&ifsta->timer, jiffies + - IEEE80211_IBSS_MERGE_INTERVAL); - } else if (time_after(jiffies, local->last_scan_completed + - IEEE80211_SCAN_INTERVAL)) { - printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to " - "join\n", dev->name); - return ieee80211_sta_req_scan(dev, ifsta->ssid, - ifsta->ssid_len); - } else if (ifsta->state != IEEE80211_IBSS_JOINED) { - int interval = IEEE80211_SCAN_INTERVAL; - - if (time_after(jiffies, ifsta->ibss_join_req + - IEEE80211_IBSS_JOIN_TIMEOUT)) { - if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) && - (!(local->oper_channel->flags & - IEEE80211_CHAN_NO_IBSS))) - return ieee80211_sta_create_ibss(dev, ifsta); - if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) { - printk(KERN_DEBUG "%s: IBSS not allowed on" - " %d MHz\n", dev->name, - local->hw.conf.channel->center_freq); - } - - /* No IBSS found - decrease scan interval and continue - * scanning. */ - interval = IEEE80211_SCAN_INTERVAL_SLOW; - } - - ifsta->state = IEEE80211_IBSS_SEARCH; - mod_timer(&ifsta->timer, jiffies + interval); - return 0; - } - - return 0; -} - - -int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is - * not defined. */ - if (local->ops->conf_tx) { - struct ieee80211_tx_queue_params qparam; - int i; - - memset(&qparam, 0, sizeof(qparam)); - - qparam.aifs = 2; - - if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ && - !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)) - qparam.cw_min = 31; - else - qparam.cw_min = 15; - - qparam.cw_max = 1023; - qparam.burst_time = 0; - - for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++) - local->ops->conf_tx(local_to_hw(local), - i + IEEE80211_TX_QUEUE_DATA0, - &qparam); - - /* IBSS uses different parameters for Beacon sending */ - qparam.cw_min++; - qparam.cw_min *= 2; - qparam.cw_min--; - local->ops->conf_tx(local_to_hw(local), - IEEE80211_TX_QUEUE_BEACON, &qparam); - } - - ifsta = &sdata->u.sta; - - if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) - ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET; - memcpy(ifsta->ssid, ssid, len); - memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len); - ifsta->ssid_len = len; - - if (len) - ifsta->flags |= IEEE80211_STA_SSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_SSID_SET; - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - !(ifsta->flags & IEEE80211_STA_BSSID_SET)) { - ifsta->ibss_join_req = jiffies; - ifsta->state = IEEE80211_IBSS_SEARCH; - return ieee80211_sta_find_ibss(dev, ifsta); - } - return 0; -} - - -int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - memcpy(ssid, ifsta->ssid, ifsta->ssid_len); - *len = ifsta->ssid_len; - return 0; -} - - -int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_sta *ifsta; - int res; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; - - if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) { - memcpy(ifsta->bssid, bssid, ETH_ALEN); - res = ieee80211_if_config(dev); - if (res) { - printk(KERN_DEBUG "%s: Failed to config new BSSID to " - "the low-level driver\n", dev->name); - return res; - } - } - - if (is_valid_ether_addr(bssid)) - ifsta->flags |= IEEE80211_STA_BSSID_SET; - else - ifsta->flags &= ~IEEE80211_STA_BSSID_SET; - - return 0; -} - - -static void ieee80211_send_nullfunc(struct ieee80211_local *local, - struct ieee80211_sub_if_data *sdata, - int powersave) -{ - struct sk_buff *skb; - struct ieee80211_hdr *nullfunc; - u16 fc; - - skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc " - "frame\n", sdata->dev->name); - return; - } - skb_reserve(skb, local->hw.extra_tx_headroom); - - nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24); - memset(nullfunc, 0, 24); - fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | - IEEE80211_FCTL_TODS; - if (powersave) - fc |= IEEE80211_FCTL_PM; - nullfunc->frame_control = cpu_to_le16(fc); - memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN); - memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN); - memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN); - - ieee80211_sta_tx(sdata->dev, skb, 0); -} - - -void ieee80211_scan_completed(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata; - union iwreq_data wrqu; - - local->last_scan_completed = jiffies; - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - - if (local->sta_hw_scanning) { - local->sta_hw_scanning = 0; - goto done; - } - - local->sta_sw_scanning = 0; - if (ieee80211_hw_config(local)) - printk(KERN_DEBUG "%s: failed to restore operational " - "channel after scan\n", dev->name); - - - netif_tx_lock_bh(local->mdev); - local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); - - netif_tx_unlock_bh(local->mdev); - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - - /* No need to wake the master device. */ - if (sdata->dev == local->mdev) - continue; - - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) { - if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) - ieee80211_send_nullfunc(local, sdata, 0); - ieee80211_sta_timer((unsigned long)sdata); - } - - netif_wake_queue(sdata->dev); - } - rcu_read_unlock(); - -done: - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) || - (!ifsta->state == IEEE80211_IBSS_JOINED && - !ieee80211_sta_active_ibss(dev))) - ieee80211_sta_find_ibss(dev, ifsta); - } -} -EXPORT_SYMBOL(ieee80211_scan_completed); - -void ieee80211_sta_scan_work(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, scan_work.work); - struct net_device *dev = local->scan_dev; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_supported_band *sband; - struct ieee80211_channel *chan; - int skip; - unsigned long next_delay = 0; - - if (!local->sta_sw_scanning) - return; - - switch (local->scan_state) { - case SCAN_SET_CHANNEL: - /* - * Get current scan band. scan_band may be IEEE80211_NUM_BANDS - * after we successfully scanned the last channel of the last - * band (and the last band is supported by the hw) - */ - if (local->scan_band < IEEE80211_NUM_BANDS) - sband = local->hw.wiphy->bands[local->scan_band]; - else - sband = NULL; - - /* - * If we are at an unsupported band and have more bands - * left to scan, advance to the next supported one. - */ - while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) { - local->scan_band++; - sband = local->hw.wiphy->bands[local->scan_band]; - local->scan_channel_idx = 0; - } - - /* if no more bands/channels left, complete scan */ - if (!sband || local->scan_channel_idx >= sband->n_channels) { - ieee80211_scan_completed(local_to_hw(local)); - return; - } - skip = 0; - chan = &sband->channels[local->scan_channel_idx]; - - if (chan->flags & IEEE80211_CHAN_DISABLED || - (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && - chan->flags & IEEE80211_CHAN_NO_IBSS)) - skip = 1; - - if (!skip) { - local->scan_channel = chan; - if (ieee80211_hw_config(local)) { - printk(KERN_DEBUG "%s: failed to set freq to " - "%d MHz for scan\n", dev->name, - chan->center_freq); - skip = 1; - } - } - - /* advance state machine to next channel/band */ - local->scan_channel_idx++; - if (local->scan_channel_idx >= sband->n_channels) { - /* - * scan_band may end up == IEEE80211_NUM_BANDS, but - * we'll catch that case above and complete the scan - * if that is the case. - */ - local->scan_band++; - local->scan_channel_idx = 0; - } - - if (skip) - break; - - next_delay = IEEE80211_PROBE_DELAY + - usecs_to_jiffies(local->hw.channel_change_time); - local->scan_state = SCAN_SEND_PROBE; - break; - case SCAN_SEND_PROBE: - next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; - local->scan_state = SCAN_SET_CHANNEL; - - if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN) - break; - ieee80211_send_probe_req(dev, NULL, local->scan_ssid, - local->scan_ssid_len); - next_delay = IEEE80211_CHANNEL_TIME; - break; - } - - if (local->sta_sw_scanning) - queue_delayed_work(local->hw.workqueue, &local->scan_work, - next_delay); -} - - -static int ieee80211_sta_start_scan(struct net_device *dev, - u8 *ssid, size_t ssid_len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_sub_if_data *sdata; - - if (ssid_len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - /* MLME-SCAN.request (page 118) page 144 (11.1.3.1) - * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS - * BSSID: MACAddress - * SSID - * ScanType: ACTIVE, PASSIVE - * ProbeDelay: delay (in microseconds) to be used prior to transmitting - * a Probe frame during active scanning - * ChannelList - * MinChannelTime (>= ProbeDelay), in TU - * MaxChannelTime: (>= MinChannelTime), in TU - */ - - /* MLME-SCAN.confirm - * BSSDescriptionSet - * ResultCode: SUCCESS, INVALID_PARAMETERS - */ - - if (local->sta_sw_scanning || local->sta_hw_scanning) { - if (local->scan_dev == dev) - return 0; - return -EBUSY; - } - - if (local->ops->hw_scan) { - int rc = local->ops->hw_scan(local_to_hw(local), - ssid, ssid_len); - if (!rc) { - local->sta_hw_scanning = 1; - local->scan_dev = dev; - } - return rc; - } - - local->sta_sw_scanning = 1; - - rcu_read_lock(); - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - - /* Don't stop the master interface, otherwise we can't transmit - * probes! */ - if (sdata->dev == local->mdev) - continue; - - netif_stop_queue(sdata->dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_STA && - (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)) - ieee80211_send_nullfunc(local, sdata, 1); - } - rcu_read_unlock(); - - if (ssid) { - local->scan_ssid_len = ssid_len; - memcpy(local->scan_ssid, ssid, ssid_len); - } else - local->scan_ssid_len = 0; - local->scan_state = SCAN_SET_CHANNEL; - local->scan_channel_idx = 0; - local->scan_band = IEEE80211_BAND_2GHZ; - local->scan_dev = dev; - - netif_tx_lock_bh(local->mdev); - local->filter_flags |= FIF_BCN_PRBRESP_PROMISC; - local->ops->configure_filter(local_to_hw(local), - FIF_BCN_PRBRESP_PROMISC, - &local->filter_flags, - local->mdev->mc_count, - local->mdev->mc_list); - netif_tx_unlock_bh(local->mdev); - - /* TODO: start scan as soon as all nullfunc frames are ACKed */ - queue_delayed_work(local->hw.workqueue, &local->scan_work, - IEEE80211_CHANNEL_TIME); - - return 0; -} - - -int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return ieee80211_sta_start_scan(dev, ssid, ssid_len); - - if (local->sta_sw_scanning || local->sta_hw_scanning) { - if (local->scan_dev == dev) - return 0; - return -EBUSY; - } - - ifsta->scan_ssid_len = ssid_len; - if (ssid_len) - memcpy(ifsta->scan_ssid, ssid, ssid_len); - set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request); - queue_work(local->hw.workqueue, &ifsta->work); - return 0; -} - -static char * -ieee80211_sta_scan_result(struct net_device *dev, - struct ieee80211_sta_bss *bss, - char *current_ev, char *end_buf) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct iw_event iwe; - - if (time_after(jiffies, - bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE)) - return current_ev; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWAP; - iwe.u.ap_addr.sa_family = ARPHRD_ETHER; - memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN); - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_ADDR_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWESSID; - iwe.u.data.length = bss->ssid_len; - iwe.u.data.flags = 1; - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - bss->ssid); - - if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWMODE; - if (bss->capability & WLAN_CAPABILITY_ESS) - iwe.u.mode = IW_MODE_MASTER; - else - iwe.u.mode = IW_MODE_ADHOC; - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_UINT_LEN); - } - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = bss->freq; - iwe.u.freq.e = 6; - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWFREQ; - iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq); - iwe.u.freq.e = 0; - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_FREQ_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVQUAL; - iwe.u.qual.qual = bss->signal; - iwe.u.qual.level = bss->rssi; - iwe.u.qual.noise = bss->noise; - iwe.u.qual.updated = local->wstats_flags; - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_QUAL_LEN); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWENCODE; - if (bss->capability & WLAN_CAPABILITY_PRIVACY) - iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; - else - iwe.u.data.flags = IW_ENCODE_DISABLED; - iwe.u.data.length = 0; - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, ""); - - if (bss && bss->wpa_ie) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = bss->wpa_ie_len; - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - bss->wpa_ie); - } - - if (bss && bss->rsn_ie) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVGENIE; - iwe.u.data.length = bss->rsn_ie_len; - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - bss->rsn_ie); - } - - if (bss && bss->supp_rates_len > 0) { - /* display all supported rates in readable format */ - char *p = current_ev + IW_EV_LCP_LEN; - int i; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = SIOCGIWRATE; - /* Those two flags are ignored... */ - iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; - - for (i = 0; i < bss->supp_rates_len; i++) { - iwe.u.bitrate.value = ((bss->supp_rates[i] & - 0x7f) * 500000); - p = iwe_stream_add_value(current_ev, p, - end_buf, &iwe, IW_EV_PARAM_LEN); - } - current_ev = p; - } - - if (bss) { - char *buf; - buf = kmalloc(30, GFP_ATOMIC); - if (buf) { - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp)); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, - &iwe, buf); - kfree(buf); - } - } - - return current_ev; -} - - -int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - char *current_ev = buf; - char *end_buf = buf + len; - struct ieee80211_sta_bss *bss; - - spin_lock_bh(&local->sta_bss_lock); - list_for_each_entry(bss, &local->sta_bss_list, list) { - if (buf + len - current_ev <= IW_EV_ADDR_LEN) { - spin_unlock_bh(&local->sta_bss_lock); - return -E2BIG; - } - current_ev = ieee80211_sta_scan_result(dev, bss, current_ev, - end_buf); - } - spin_unlock_bh(&local->sta_bss_lock); - return current_ev - buf; -} - - -int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - kfree(ifsta->extra_ie); - if (len == 0) { - ifsta->extra_ie = NULL; - ifsta->extra_ie_len = 0; - return 0; - } - ifsta->extra_ie = kmalloc(len, GFP_KERNEL); - if (!ifsta->extra_ie) { - ifsta->extra_ie_len = 0; - return -ENOMEM; - } - memcpy(ifsta->extra_ie, ie, len); - ifsta->extra_ie_len = len; - return 0; -} - - -struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev, - struct sk_buff *skb, u8 *bssid, - u8 *addr) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - DECLARE_MAC_BUF(mac); - - /* TODO: Could consider removing the least recently used entry and - * allow new one to be added. */ - if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: No room for a new IBSS STA " - "entry %s\n", dev->name, print_mac(mac, addr)); - } - return NULL; - } - - printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n", - wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name); - - sta = sta_info_add(local, dev, addr, GFP_ATOMIC); - if (!sta) - return NULL; - - sta->flags |= WLAN_STA_AUTHORIZED; - - sta->supp_rates[local->hw.conf.channel->band] = - sdata->u.sta.supp_rates_bits[local->hw.conf.channel->band]; - - rate_control_rate_init(sta, local); - - return sta; /* caller will call sta_info_put() */ -} - - -int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - - printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n", - dev->name, reason); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA && - sdata->vif.type != IEEE80211_IF_TYPE_IBSS) - return -EINVAL; - - ieee80211_send_deauth(dev, ifsta, reason); - ieee80211_set_disassoc(dev, ifsta, 1); - return 0; -} - - -int ieee80211_sta_disassociate(struct net_device *dev, u16 reason) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - - printk(KERN_DEBUG "%s: disassociate(reason=%d)\n", - dev->name, reason); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA) - return -EINVAL; - - if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED)) - return -1; - - ieee80211_send_disassoc(dev, ifsta, reason); - ieee80211_set_disassoc(dev, ifsta, 0); - return 0; -} diff --git a/package/mac80211/src/net/mac80211/key.c b/package/mac80211/src/net/mac80211/key.c deleted file mode 100644 index ed57fb8e82..0000000000 --- a/package/mac80211/src/net/mac80211/key.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/if_ether.h> -#include <linux/etherdevice.h> -#include <linux/list.h> -#include <linux/rcupdate.h> -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "debugfs_key.h" -#include "aes_ccm.h" - - -/* - * Key handling basics - * - * Key handling in mac80211 is done based on per-interface (sub_if_data) - * keys and per-station keys. Since each station belongs to an interface, - * each station key also belongs to that interface. - * - * Hardware acceleration is done on a best-effort basis, for each key - * that is eligible the hardware is asked to enable that key but if - * it cannot do that they key is simply kept for software encryption. - * There is currently no way of knowing this except by looking into - * debugfs. - * - * All operations here are called under RTNL so no extra locking is - * required. - */ - -static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; -static const u8 zero_addr[ETH_ALEN]; - -static const u8 *get_mac_for_key(struct ieee80211_key *key) -{ - const u8 *addr = bcast_addr; - - /* - * If we're an AP we won't ever receive frames with a non-WEP - * group key so we tell the driver that by using the zero MAC - * address to indicate a transmit-only key. - */ - if (key->conf.alg != ALG_WEP && - (key->sdata->vif.type == IEEE80211_IF_TYPE_AP || - key->sdata->vif.type == IEEE80211_IF_TYPE_VLAN)) - addr = zero_addr; - - if (key->sta) - addr = key->sta->addr; - - return addr; -} - -static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key) -{ - const u8 *addr; - int ret; - DECLARE_MAC_BUF(mac); - - if (!key->local->ops->set_key) - return; - - addr = get_mac_for_key(key); - - ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY, - key->sdata->dev->dev_addr, addr, - &key->conf); - - if (!ret) - key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; - - if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP) - printk(KERN_ERR "mac80211-%s: failed to set key " - "(%d, %s) to hardware (%d)\n", - wiphy_name(key->local->hw.wiphy), - key->conf.keyidx, print_mac(mac, addr), ret); -} - -static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) -{ - const u8 *addr; - int ret; - DECLARE_MAC_BUF(mac); - - if (!key->local->ops->set_key) - return; - - if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) - return; - - addr = get_mac_for_key(key); - - ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY, - key->sdata->dev->dev_addr, addr, - &key->conf); - - if (ret) - printk(KERN_ERR "mac80211-%s: failed to remove key " - "(%d, %s) from hardware (%d)\n", - wiphy_name(key->local->hw.wiphy), - key->conf.keyidx, print_mac(mac, addr), ret); - - key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; -} - -struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, - struct sta_info *sta, - enum ieee80211_key_alg alg, - int idx, - size_t key_len, - const u8 *key_data) -{ - struct ieee80211_key *key; - - BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS); - - key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL); - if (!key) - return NULL; - - /* - * Default to software encryption; we'll later upload the - * key to the hardware if possible. - */ - key->conf.flags = 0; - key->flags = 0; - - key->conf.alg = alg; - key->conf.keyidx = idx; - key->conf.keylen = key_len; - memcpy(key->conf.key, key_data, key_len); - - key->local = sdata->local; - key->sdata = sdata; - key->sta = sta; - - if (alg == ALG_CCMP) { - /* - * Initialize AES key state here as an optimization so that - * it does not need to be initialized for every packet. - */ - key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data); - if (!key->u.ccmp.tfm) { - ieee80211_key_free(key); - return NULL; - } - } - - ieee80211_debugfs_key_add(key->local, key); - - /* remove key first */ - if (sta) - ieee80211_key_free(sta->key); - else - ieee80211_key_free(sdata->keys[idx]); - - if (sta) { - ieee80211_debugfs_key_sta_link(key, sta); - - /* - * some hardware cannot handle TKIP with QoS, so - * we indicate whether QoS could be in use. - */ - if (sta->flags & WLAN_STA_WME) - key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA; - } else { - if (sdata->vif.type == IEEE80211_IF_TYPE_STA) { - struct sta_info *ap; - - /* same here, the AP could be using QoS */ - ap = sta_info_get(key->local, key->sdata->u.sta.bssid); - if (ap) { - if (ap->flags & WLAN_STA_WME) - key->conf.flags |= - IEEE80211_KEY_FLAG_WMM_STA; - sta_info_put(ap); - } - } - } - - /* enable hwaccel if appropriate */ - if (netif_running(key->sdata->dev)) - ieee80211_key_enable_hw_accel(key); - - if (sta) - rcu_assign_pointer(sta->key, key); - else - rcu_assign_pointer(sdata->keys[idx], key); - - list_add(&key->list, &sdata->key_list); - - return key; -} - -void ieee80211_key_free(struct ieee80211_key *key) -{ - if (!key) - return; - - if (key->sta) { - rcu_assign_pointer(key->sta->key, NULL); - } else { - if (key->sdata->default_key == key) - ieee80211_set_default_key(key->sdata, -1); - if (key->conf.keyidx >= 0 && - key->conf.keyidx < NUM_DEFAULT_KEYS) - rcu_assign_pointer(key->sdata->keys[key->conf.keyidx], - NULL); - else - WARN_ON(1); - } - - /* wait for all key users to complete */ - synchronize_rcu(); - - /* remove from hwaccel if appropriate */ - ieee80211_key_disable_hw_accel(key); - - if (key->conf.alg == ALG_CCMP) - ieee80211_aes_key_free(key->u.ccmp.tfm); - ieee80211_debugfs_key_remove(key); - - list_del(&key->list); - - kfree(key); -} - -void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx) -{ - struct ieee80211_key *key = NULL; - - if (idx >= 0 && idx < NUM_DEFAULT_KEYS) - key = sdata->keys[idx]; - - if (sdata->default_key != key) { - ieee80211_debugfs_key_remove_default(sdata); - - rcu_assign_pointer(sdata->default_key, key); - - if (sdata->default_key) - ieee80211_debugfs_key_add_default(sdata); - } -} - -void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_key *key, *tmp; - - list_for_each_entry_safe(key, tmp, &sdata->key_list, list) - ieee80211_key_free(key); -} - -void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_key *key; - - WARN_ON(!netif_running(sdata->dev)); - if (!netif_running(sdata->dev)) - return; - - list_for_each_entry(key, &sdata->key_list, list) - ieee80211_key_enable_hw_accel(key); -} - -void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_key *key; - - list_for_each_entry(key, &sdata->key_list, list) - ieee80211_key_disable_hw_accel(key); -} diff --git a/package/mac80211/src/net/mac80211/michael.c b/package/mac80211/src/net/mac80211/michael.c deleted file mode 100644 index 0f844f7895..0000000000 --- a/package/mac80211/src/net/mac80211/michael.c +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Michael MIC implementation - optimized for TKIP MIC operations - * Copyright 2002-2003, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/types.h> - -#include "michael.h" - -static inline u32 rotr(u32 val, int bits) -{ - return (val >> bits) | (val << (32 - bits)); -} - - -static inline u32 rotl(u32 val, int bits) -{ - return (val << bits) | (val >> (32 - bits)); -} - - -static inline u32 xswap(u32 val) -{ - return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8); -} - - -#define michael_block(l, r) \ -do { \ - r ^= rotl(l, 17); \ - l += r; \ - r ^= xswap(l); \ - l += r; \ - r ^= rotl(l, 3); \ - l += r; \ - r ^= rotr(l, 2); \ - l += r; \ -} while (0) - - -static inline u32 michael_get32(u8 *data) -{ - return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24); -} - - -static inline void michael_put32(u32 val, u8 *data) -{ - data[0] = val & 0xff; - data[1] = (val >> 8) & 0xff; - data[2] = (val >> 16) & 0xff; - data[3] = (val >> 24) & 0xff; -} - - -void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority, - u8 *data, size_t data_len, u8 *mic) -{ - u32 l, r, val; - size_t block, blocks, left; - - l = michael_get32(key); - r = michael_get32(key + 4); - - /* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC - * calculation, but it is _not_ transmitted */ - l ^= michael_get32(da); - michael_block(l, r); - l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24); - michael_block(l, r); - l ^= michael_get32(&sa[2]); - michael_block(l, r); - l ^= priority; - michael_block(l, r); - - /* Real data */ - blocks = data_len / 4; - left = data_len % 4; - - for (block = 0; block < blocks; block++) { - l ^= michael_get32(&data[block * 4]); - michael_block(l, r); - } - - /* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make - * total length a multiple of 4. */ - val = 0x5a; - while (left > 0) { - val <<= 8; - left--; - val |= data[blocks * 4 + left]; - } - l ^= val; - michael_block(l, r); - /* last block is zero, so l ^ 0 = l */ - michael_block(l, r); - - michael_put32(l, mic); - michael_put32(r, mic + 4); -} diff --git a/package/mac80211/src/net/mac80211/michael.h b/package/mac80211/src/net/mac80211/michael.h deleted file mode 100644 index 2e6aebabee..0000000000 --- a/package/mac80211/src/net/mac80211/michael.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * Michael MIC implementation - optimized for TKIP MIC operations - * Copyright 2002-2003, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef MICHAEL_H -#define MICHAEL_H - -#include <linux/types.h> - -#define MICHAEL_MIC_LEN 8 - -void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority, - u8 *data, size_t data_len, u8 *mic); - -#endif /* MICHAEL_H */ diff --git a/package/mac80211/src/net/mac80211/rc80211_pid.h b/package/mac80211/src/net/mac80211/rc80211_pid.h deleted file mode 100644 index 04afc13ed8..0000000000 --- a/package/mac80211/src/net/mac80211/rc80211_pid.h +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de> - * Copyright 2007, Stefano Brivio <stefano.brivio@polimi.it> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef RC80211_PID_H -#define RC80211_PID_H - -/* Sampling period for measuring percentage of failed frames in ms. */ -#define RC_PID_INTERVAL 125 - -/* Exponential averaging smoothness (used for I part of PID controller) */ -#define RC_PID_SMOOTHING_SHIFT 3 -#define RC_PID_SMOOTHING (1 << RC_PID_SMOOTHING_SHIFT) - -/* Sharpening factor (used for D part of PID controller) */ -#define RC_PID_SHARPENING_FACTOR 0 -#define RC_PID_SHARPENING_DURATION 0 - -/* Fixed point arithmetic shifting amount. */ -#define RC_PID_ARITH_SHIFT 8 - -/* Fixed point arithmetic factor. */ -#define RC_PID_ARITH_FACTOR (1 << RC_PID_ARITH_SHIFT) - -/* Proportional PID component coefficient. */ -#define RC_PID_COEFF_P 15 -/* Integral PID component coefficient. */ -#define RC_PID_COEFF_I 9 -/* Derivative PID component coefficient. */ -#define RC_PID_COEFF_D 15 - -/* Target failed frames rate for the PID controller. NB: This effectively gives - * maximum failed frames percentage we're willing to accept. If the wireless - * link quality is good, the controller will fail to adjust failed frames - * percentage to the target. This is intentional. - */ -#define RC_PID_TARGET_PF 14 - -/* Rate behaviour normalization quantity over time. */ -#define RC_PID_NORM_OFFSET 3 - -/* Push high rates right after loading. */ -#define RC_PID_FAST_START 0 - -/* Arithmetic right shift for positive and negative values for ISO C. */ -#define RC_PID_DO_ARITH_RIGHT_SHIFT(x, y) \ - (x) < 0 ? -((-(x)) >> (y)) : (x) >> (y) - -enum rc_pid_event_type { - RC_PID_EVENT_TYPE_TX_STATUS, - RC_PID_EVENT_TYPE_RATE_CHANGE, - RC_PID_EVENT_TYPE_TX_RATE, - RC_PID_EVENT_TYPE_PF_SAMPLE, -}; - -union rc_pid_event_data { - /* RC_PID_EVENT_TX_STATUS */ - struct { - struct ieee80211_tx_status tx_status; - }; - /* RC_PID_EVENT_TYPE_RATE_CHANGE */ - /* RC_PID_EVENT_TYPE_TX_RATE */ - struct { - int index; - int rate; - }; - /* RC_PID_EVENT_TYPE_PF_SAMPLE */ - struct { - s32 pf_sample; - s32 prop_err; - s32 int_err; - s32 der_err; - }; -}; - -struct rc_pid_event { - /* The time when the event occured */ - unsigned long timestamp; - - /* Event ID number */ - unsigned int id; - - /* Type of event */ - enum rc_pid_event_type type; - - /* type specific data */ - union rc_pid_event_data data; -}; - -/* Size of the event ring buffer. */ -#define RC_PID_EVENT_RING_SIZE 32 - -struct rc_pid_event_buffer { - /* Counter that generates event IDs */ - unsigned int ev_count; - - /* Ring buffer of events */ - struct rc_pid_event ring[RC_PID_EVENT_RING_SIZE]; - - /* Index to the entry in events_buf to be reused */ - unsigned int next_entry; - - /* Lock that guards against concurrent access to this buffer struct */ - spinlock_t lock; - - /* Wait queue for poll/select and blocking I/O */ - wait_queue_head_t waitqueue; -}; - -struct rc_pid_events_file_info { - /* The event buffer we read */ - struct rc_pid_event_buffer *events; - - /* The entry we have should read next */ - unsigned int next_entry; -}; - -/** - * struct rc_pid_debugfs_entries - tunable parameters - * - * Algorithm parameters, tunable via debugfs. - * @dir: the debugfs directory for a specific phy - * @target: target percentage for failed frames - * @sampling_period: error sampling interval in milliseconds - * @coeff_p: absolute value of the proportional coefficient - * @coeff_i: absolute value of the integral coefficient - * @coeff_d: absolute value of the derivative coefficient - * @smoothing_shift: absolute value of the integral smoothing factor (i.e. - * amount of smoothing introduced by the exponential moving average) - * @sharpen_factor: absolute value of the derivative sharpening factor (i.e. - * amount of emphasis given to the derivative term after low activity - * events) - * @sharpen_duration: duration of the sharpening effect after the detected low - * activity event, relative to sampling_period - * @norm_offset: amount of normalization periodically performed on the learnt - * rate behaviour values (lower means we should trust more what we learnt - * about behaviour of rates, higher means we should trust more the natural - * ordering of rates) - * @fast_start: if Y, push high rates right after initialization - */ -struct rc_pid_debugfs_entries { - struct dentry *dir; - struct dentry *target; - struct dentry *sampling_period; - struct dentry *coeff_p; - struct dentry *coeff_i; - struct dentry *coeff_d; - struct dentry *smoothing_shift; - struct dentry *sharpen_factor; - struct dentry *sharpen_duration; - struct dentry *norm_offset; - struct dentry *fast_start; -}; - -void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf, - struct ieee80211_tx_status *stat); - -void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf, - int index, int rate); - -void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf, - int index, int rate); - -void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf, - s32 pf_sample, s32 prop_err, - s32 int_err, s32 der_err); - -void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta, - struct dentry *dir); - -void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta); - -struct rc_pid_sta_info { - unsigned long last_change; - unsigned long last_sample; - - u32 tx_num_failed; - u32 tx_num_xmit; - - /* Average failed frames percentage error (i.e. actual vs. target - * percentage), scaled by RC_PID_SMOOTHING. This value is computed - * using using an exponential weighted average technique: - * - * (RC_PID_SMOOTHING - 1) * err_avg_old + err - * err_avg = ------------------------------------------ - * RC_PID_SMOOTHING - * - * where err_avg is the new approximation, err_avg_old the previous one - * and err is the error w.r.t. to the current failed frames percentage - * sample. Note that the bigger RC_PID_SMOOTHING the more weight is - * given to the previous estimate, resulting in smoother behavior (i.e. - * corresponding to a longer integration window). - * - * For computation, we actually don't use the above formula, but this - * one: - * - * err_avg_scaled = err_avg_old_scaled - err_avg_old + err - * - * where: - * err_avg_scaled = err * RC_PID_SMOOTHING - * err_avg_old_scaled = err_avg_old * RC_PID_SMOOTHING - * - * This avoids floating point numbers and the per_failed_old value can - * easily be obtained by shifting per_failed_old_scaled right by - * RC_PID_SMOOTHING_SHIFT. - */ - s32 err_avg_sc; - - /* Last framed failes percentage sample. */ - u32 last_pf; - - /* Sharpening needed. */ - u8 sharp_cnt; - -#ifdef CONFIG_MAC80211_DEBUGFS - /* Event buffer */ - struct rc_pid_event_buffer events; - - /* Events debugfs file entry */ - struct dentry *events_entry; -#endif -}; - -/* Algorithm parameters. We keep them on a per-algorithm approach, so they can - * be tuned individually for each interface. - */ -struct rc_pid_rateinfo { - - /* Map sorted rates to rates in ieee80211_hw_mode. */ - int index; - - /* Map rates in ieee80211_hw_mode to sorted rates. */ - int rev_index; - - /* Did we do any measurement on this rate? */ - bool valid; - - /* Comparison with the lowest rate. */ - int diff; -}; - -struct rc_pid_info { - - /* The failed frames percentage target. */ - unsigned int target; - - /* Rate at which failed frames percentage is sampled in 0.001s. */ - unsigned int sampling_period; - - /* P, I and D coefficients. */ - int coeff_p; - int coeff_i; - int coeff_d; - - /* Exponential averaging shift. */ - unsigned int smoothing_shift; - - /* Sharpening factor and duration. */ - unsigned int sharpen_factor; - unsigned int sharpen_duration; - - /* Normalization offset. */ - unsigned int norm_offset; - - /* Fast starst parameter. */ - unsigned int fast_start; - - /* Rates information. */ - struct rc_pid_rateinfo *rinfo; - - /* Index of the last used rate. */ - int oldrate; - -#ifdef CONFIG_MAC80211_DEBUGFS - /* Debugfs entries created for the parameters above. */ - struct rc_pid_debugfs_entries dentries; -#endif -}; - -#endif /* RC80211_PID_H */ diff --git a/package/mac80211/src/net/mac80211/rc80211_pid_algo.c b/package/mac80211/src/net/mac80211/rc80211_pid_algo.c deleted file mode 100644 index da8462bbd5..0000000000 --- a/package/mac80211/src/net/mac80211/rc80211_pid_algo.c +++ /dev/null @@ -1,550 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de> - * Copyright 2007-2008, Stefano Brivio <stefano.brivio@polimi.it> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/skbuff.h> -#include <linux/debugfs.h> -#include <net/mac80211.h> -#include "ieee80211_rate.h" - -#include "rc80211_pid.h" - - -/* This is an implementation of a TX rate control algorithm that uses a PID - * controller. Given a target failed frames rate, the controller decides about - * TX rate changes to meet the target failed frames rate. - * - * The controller basically computes the following: - * - * adj = CP * err + CI * err_avg + CD * (err - last_err) * (1 + sharpening) - * - * where - * adj adjustment value that is used to switch TX rate (see below) - * err current error: target vs. current failed frames percentage - * last_err last error - * err_avg average (i.e. poor man's integral) of recent errors - * sharpening non-zero when fast response is needed (i.e. right after - * association or no frames sent for a long time), heading - * to zero over time - * CP Proportional coefficient - * CI Integral coefficient - * CD Derivative coefficient - * - * CP, CI, CD are subject to careful tuning. - * - * The integral component uses a exponential moving average approach instead of - * an actual sliding window. The advantage is that we don't need to keep an - * array of the last N error values and computation is easier. - * - * Once we have the adj value, we map it to a rate by means of a learning - * algorithm. This algorithm keeps the state of the percentual failed frames - * difference between rates. The behaviour of the lowest available rate is kept - * as a reference value, and every time we switch between two rates, we compute - * the difference between the failed frames each rate exhibited. By doing so, - * we compare behaviours which different rates exhibited in adjacent timeslices, - * thus the comparison is minimally affected by external conditions. This - * difference gets propagated to the whole set of measurements, so that the - * reference is always the same. Periodically, we normalize this set so that - * recent events weigh the most. By comparing the adj value with this set, we - * avoid pejorative switches to lower rates and allow for switches to higher - * rates if they behaved well. - * - * Note that for the computations we use a fixed-point representation to avoid - * floating point arithmetic. Hence, all values are shifted left by - * RC_PID_ARITH_SHIFT. - */ - - -/* Adjust the rate while ensuring that we won't switch to a lower rate if it - * exhibited a worse failed frames behaviour and we'll choose the highest rate - * whose failed frames behaviour is not worse than the one of the original rate - * target. While at it, check that the new rate is valid. */ -static void rate_control_pid_adjust_rate(struct ieee80211_local *local, - struct sta_info *sta, int adj, - struct rc_pid_rateinfo *rinfo) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - int cur_sorted, new_sorted, probe, tmp, n_bitrates, band; - int cur = sta->txrate_idx; - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - band = sband->band; - n_bitrates = sband->n_bitrates; - - /* Map passed arguments to sorted values. */ - cur_sorted = rinfo[cur].rev_index; - new_sorted = cur_sorted + adj; - - /* Check limits. */ - if (new_sorted < 0) - new_sorted = rinfo[0].rev_index; - else if (new_sorted >= n_bitrates) - new_sorted = rinfo[n_bitrates - 1].rev_index; - - tmp = new_sorted; - - if (adj < 0) { - /* Ensure that the rate decrease isn't disadvantageous. */ - for (probe = cur_sorted; probe >= new_sorted; probe--) - if (rinfo[probe].diff <= rinfo[cur_sorted].diff && - rate_supported(sta, band, rinfo[probe].index)) - tmp = probe; - } else { - /* Look for rate increase with zero (or below) cost. */ - for (probe = new_sorted + 1; probe < n_bitrates; probe++) - if (rinfo[probe].diff <= rinfo[new_sorted].diff && - rate_supported(sta, band, rinfo[probe].index)) - tmp = probe; - } - - /* Fit the rate found to the nearest supported rate. */ - do { - if (rate_supported(sta, band, rinfo[tmp].index)) { - sta->txrate_idx = rinfo[tmp].index; - break; - } - if (adj < 0) - tmp--; - else - tmp++; - } while (tmp < n_bitrates && tmp >= 0); - -#ifdef CONFIG_MAC80211_DEBUGFS - rate_control_pid_event_rate_change( - &((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events, - sta->txrate_idx, sband->bitrates[sta->txrate_idx].bitrate); -#endif -} - -/* Normalize the failed frames per-rate differences. */ -static void rate_control_pid_normalize(struct rc_pid_info *pinfo, int l) -{ - int i, norm_offset = pinfo->norm_offset; - struct rc_pid_rateinfo *r = pinfo->rinfo; - - if (r[0].diff > norm_offset) - r[0].diff -= norm_offset; - else if (r[0].diff < -norm_offset) - r[0].diff += norm_offset; - for (i = 0; i < l - 1; i++) - if (r[i + 1].diff > r[i].diff + norm_offset) - r[i + 1].diff -= norm_offset; - else if (r[i + 1].diff <= r[i].diff) - r[i + 1].diff += norm_offset; -} - -static void rate_control_pid_sample(struct rc_pid_info *pinfo, - struct ieee80211_local *local, - struct sta_info *sta) -{ - struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv; - struct rc_pid_rateinfo *rinfo = pinfo->rinfo; - struct ieee80211_supported_band *sband; - u32 pf; - s32 err_avg; - u32 err_prop; - u32 err_int; - u32 err_der; - int adj, i, j, tmp; - unsigned long period; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - spinfo = sta->rate_ctrl_priv; - - /* In case nothing happened during the previous control interval, turn - * the sharpening factor on. */ - period = (HZ * pinfo->sampling_period + 500) / 1000; - if (!period) - period = 1; - if (jiffies - spinfo->last_sample > 2 * period) - spinfo->sharp_cnt = pinfo->sharpen_duration; - - spinfo->last_sample = jiffies; - - /* This should never happen, but in case, we assume the old sample is - * still a good measurement and copy it. */ - if (unlikely(spinfo->tx_num_xmit == 0)) - pf = spinfo->last_pf; - else { - pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit; - pf <<= RC_PID_ARITH_SHIFT; - } - - spinfo->tx_num_xmit = 0; - spinfo->tx_num_failed = 0; - - /* If we just switched rate, update the rate behaviour info. */ - if (pinfo->oldrate != sta->txrate_idx) { - - i = rinfo[pinfo->oldrate].rev_index; - j = rinfo[sta->txrate_idx].rev_index; - - tmp = (pf - spinfo->last_pf); - tmp = RC_PID_DO_ARITH_RIGHT_SHIFT(tmp, RC_PID_ARITH_SHIFT); - - rinfo[j].diff = rinfo[i].diff + tmp; - pinfo->oldrate = sta->txrate_idx; - } - rate_control_pid_normalize(pinfo, sband->n_bitrates); - - /* Compute the proportional, integral and derivative errors. */ - err_prop = (pinfo->target << RC_PID_ARITH_SHIFT) - pf; - - err_avg = spinfo->err_avg_sc >> pinfo->smoothing_shift; - spinfo->err_avg_sc = spinfo->err_avg_sc - err_avg + err_prop; - err_int = spinfo->err_avg_sc >> pinfo->smoothing_shift; - - err_der = (pf - spinfo->last_pf) * - (1 + pinfo->sharpen_factor * spinfo->sharp_cnt); - spinfo->last_pf = pf; - if (spinfo->sharp_cnt) - spinfo->sharp_cnt--; - -#ifdef CONFIG_MAC80211_DEBUGFS - rate_control_pid_event_pf_sample(&spinfo->events, pf, err_prop, err_int, - err_der); -#endif - - /* Compute the controller output. */ - adj = (err_prop * pinfo->coeff_p + err_int * pinfo->coeff_i - + err_der * pinfo->coeff_d); - adj = RC_PID_DO_ARITH_RIGHT_SHIFT(adj, 2 * RC_PID_ARITH_SHIFT); - - /* Change rate. */ - if (adj) - rate_control_pid_adjust_rate(local, sta, adj, rinfo); -} - -static void rate_control_pid_tx_status(void *priv, struct net_device *dev, - struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_sub_if_data *sdata; - struct rc_pid_info *pinfo = priv; - struct sta_info *sta; - struct rc_pid_sta_info *spinfo; - unsigned long period; - struct ieee80211_supported_band *sband; - - sta = sta_info_get(local, hdr->addr1); - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - if (!sta) - return; - - /* Don't update the state if we're not controlling the rate. */ - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) { - sta->txrate_idx = sdata->bss->max_ratectrl_rateidx; - return; - } - - /* Ignore all frames that were sent with a different rate than the rate - * we currently advise mac80211 to use. */ - if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx]) - goto ignore; - - spinfo = sta->rate_ctrl_priv; - spinfo->tx_num_xmit++; - -#ifdef CONFIG_MAC80211_DEBUGFS - rate_control_pid_event_tx_status(&spinfo->events, status); -#endif - - /* We count frames that totally failed to be transmitted as two bad - * frames, those that made it out but had some retries as one good and - * one bad frame. */ - if (status->excessive_retries) { - spinfo->tx_num_failed += 2; - spinfo->tx_num_xmit++; - } else if (status->retry_count) { - spinfo->tx_num_failed++; - spinfo->tx_num_xmit++; - } - - if (status->excessive_retries) { - sta->tx_retry_failed++; - sta->tx_num_consecutive_failures++; - sta->tx_num_mpdu_fail++; - } else { - sta->last_ack_rssi[0] = sta->last_ack_rssi[1]; - sta->last_ack_rssi[1] = sta->last_ack_rssi[2]; - sta->last_ack_rssi[2] = status->ack_signal; - sta->tx_num_consecutive_failures = 0; - sta->tx_num_mpdu_ok++; - } - sta->tx_retry_count += status->retry_count; - sta->tx_num_mpdu_fail += status->retry_count; - - /* Update PID controller state. */ - period = (HZ * pinfo->sampling_period + 500) / 1000; - if (!period) - period = 1; - if (time_after(jiffies, spinfo->last_sample + period)) - rate_control_pid_sample(pinfo, local, sta); - -ignore: - sta_info_put(sta); -} - -static void rate_control_pid_get_rate(void *priv, struct net_device *dev, - struct ieee80211_supported_band *sband, - struct sk_buff *skb, - struct rate_selection *sel) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - int rateidx; - u16 fc; - - sta = sta_info_get(local, hdr->addr1); - - /* Send management frames and broadcast/multicast data using lowest - * rate. */ - fc = le16_to_cpu(hdr->frame_control); - if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || - is_multicast_ether_addr(hdr->addr1) || !sta) { - sel->rate = rate_lowest(local, sband, sta); - if (sta) - sta_info_put(sta); - return; - } - - /* If a forced rate is in effect, select it. */ - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) - sta->txrate_idx = sdata->bss->force_unicast_rateidx; - - rateidx = sta->txrate_idx; - - if (rateidx >= sband->n_bitrates) - rateidx = sband->n_bitrates - 1; - - sta->last_txrate_idx = rateidx; - - sta_info_put(sta); - - sel->rate = &sband->bitrates[rateidx]; - -#ifdef CONFIG_MAC80211_DEBUGFS - rate_control_pid_event_tx_rate( - &((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events, - rateidx, sband->bitrates[rateidx].bitrate); -#endif -} - -static void rate_control_pid_rate_init(void *priv, void *priv_sta, - struct ieee80211_local *local, - struct sta_info *sta) -{ - /* TODO: This routine should consider using RSSI from previous packets - * as we need to have IEEE 802.1X auth succeed immediately after assoc.. - * Until that method is implemented, we will use the lowest supported - * rate as a workaround. */ - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - sta->txrate_idx = rate_lowest_index(local, sband, sta); -} - -static void *rate_control_pid_alloc(struct ieee80211_local *local) -{ - struct rc_pid_info *pinfo; - struct rc_pid_rateinfo *rinfo; - struct ieee80211_supported_band *sband; - int i, j, tmp; - bool s; -#ifdef CONFIG_MAC80211_DEBUGFS - struct rc_pid_debugfs_entries *de; -#endif - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC); - if (!pinfo) - return NULL; - - /* We can safely assume that sband won't change unless we get - * reinitialized. */ - rinfo = kmalloc(sizeof(*rinfo) * sband->n_bitrates, GFP_ATOMIC); - if (!rinfo) { - kfree(pinfo); - return NULL; - } - - /* Sort the rates. This is optimized for the most common case (i.e. - * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed - * mapping too. */ - for (i = 0; i < sband->n_bitrates; i++) { - rinfo[i].index = i; - rinfo[i].rev_index = i; - if (pinfo->fast_start) - rinfo[i].diff = 0; - else - rinfo[i].diff = i * pinfo->norm_offset; - } - for (i = 1; i < sband->n_bitrates; i++) { - s = 0; - for (j = 0; j < sband->n_bitrates - i; j++) - if (unlikely(sband->bitrates[rinfo[j].index].bitrate > - sband->bitrates[rinfo[j + 1].index].bitrate)) { - tmp = rinfo[j].index; - rinfo[j].index = rinfo[j + 1].index; - rinfo[j + 1].index = tmp; - rinfo[rinfo[j].index].rev_index = j; - rinfo[rinfo[j + 1].index].rev_index = j + 1; - s = 1; - } - if (!s) - break; - } - - pinfo->target = RC_PID_TARGET_PF; - pinfo->sampling_period = RC_PID_INTERVAL; - pinfo->coeff_p = RC_PID_COEFF_P; - pinfo->coeff_i = RC_PID_COEFF_I; - pinfo->coeff_d = RC_PID_COEFF_D; - pinfo->smoothing_shift = RC_PID_SMOOTHING_SHIFT; - pinfo->sharpen_factor = RC_PID_SHARPENING_FACTOR; - pinfo->sharpen_duration = RC_PID_SHARPENING_DURATION; - pinfo->norm_offset = RC_PID_NORM_OFFSET; - pinfo->fast_start = RC_PID_FAST_START; - pinfo->rinfo = rinfo; - pinfo->oldrate = 0; - -#ifdef CONFIG_MAC80211_DEBUGFS - de = &pinfo->dentries; - de->dir = debugfs_create_dir("rc80211_pid", - local->hw.wiphy->debugfsdir); - de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR, - de->dir, &pinfo->target); - de->sampling_period = debugfs_create_u32("sampling_period", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->sampling_period); - de->coeff_p = debugfs_create_u32("coeff_p", S_IRUSR | S_IWUSR, - de->dir, &pinfo->coeff_p); - de->coeff_i = debugfs_create_u32("coeff_i", S_IRUSR | S_IWUSR, - de->dir, &pinfo->coeff_i); - de->coeff_d = debugfs_create_u32("coeff_d", S_IRUSR | S_IWUSR, - de->dir, &pinfo->coeff_d); - de->smoothing_shift = debugfs_create_u32("smoothing_shift", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->smoothing_shift); - de->sharpen_factor = debugfs_create_u32("sharpen_factor", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->sharpen_factor); - de->sharpen_duration = debugfs_create_u32("sharpen_duration", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->sharpen_duration); - de->norm_offset = debugfs_create_u32("norm_offset", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->norm_offset); - de->fast_start = debugfs_create_bool("fast_start", - S_IRUSR | S_IWUSR, de->dir, - &pinfo->fast_start); -#endif - - return pinfo; -} - -static void rate_control_pid_free(void *priv) -{ - struct rc_pid_info *pinfo = priv; -#ifdef CONFIG_MAC80211_DEBUGFS - struct rc_pid_debugfs_entries *de = &pinfo->dentries; - - debugfs_remove(de->fast_start); - debugfs_remove(de->norm_offset); - debugfs_remove(de->sharpen_duration); - debugfs_remove(de->sharpen_factor); - debugfs_remove(de->smoothing_shift); - debugfs_remove(de->coeff_d); - debugfs_remove(de->coeff_i); - debugfs_remove(de->coeff_p); - debugfs_remove(de->sampling_period); - debugfs_remove(de->target); - debugfs_remove(de->dir); -#endif - - kfree(pinfo->rinfo); - kfree(pinfo); -} - -static void rate_control_pid_clear(void *priv) -{ -} - -static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp) -{ - struct rc_pid_sta_info *spinfo; - - spinfo = kzalloc(sizeof(*spinfo), gfp); - if (spinfo == NULL) - return NULL; - - spinfo->last_sample = jiffies; - -#ifdef CONFIG_MAC80211_DEBUGFS - spin_lock_init(&spinfo->events.lock); - init_waitqueue_head(&spinfo->events.waitqueue); -#endif - - return spinfo; -} - -static void rate_control_pid_free_sta(void *priv, void *priv_sta) -{ - struct rc_pid_sta_info *spinfo = priv_sta; - kfree(spinfo); -} - -static struct rate_control_ops mac80211_rcpid = { - .name = "pid", - .tx_status = rate_control_pid_tx_status, - .get_rate = rate_control_pid_get_rate, - .rate_init = rate_control_pid_rate_init, - .clear = rate_control_pid_clear, - .alloc = rate_control_pid_alloc, - .free = rate_control_pid_free, - .alloc_sta = rate_control_pid_alloc_sta, - .free_sta = rate_control_pid_free_sta, -#ifdef CONFIG_MAC80211_DEBUGFS - .add_sta_debugfs = rate_control_pid_add_sta_debugfs, - .remove_sta_debugfs = rate_control_pid_remove_sta_debugfs, -#endif -}; - -MODULE_DESCRIPTION("PID controller based rate control algorithm"); -MODULE_AUTHOR("Stefano Brivio"); -MODULE_AUTHOR("Mattias Nissler"); -MODULE_LICENSE("GPL"); - -int __init rc80211_pid_init(void) -{ - return ieee80211_rate_control_register(&mac80211_rcpid); -} - -void rc80211_pid_exit(void) -{ - ieee80211_rate_control_unregister(&mac80211_rcpid); -} - -#ifdef CONFIG_MAC80211_RC_PID_MODULE -module_init(rc80211_pid_init); -module_exit(rc80211_pid_exit); -#endif diff --git a/package/mac80211/src/net/mac80211/rc80211_pid_debugfs.c b/package/mac80211/src/net/mac80211/rc80211_pid_debugfs.c deleted file mode 100644 index 88b8dc9999..0000000000 --- a/package/mac80211/src/net/mac80211/rc80211_pid_debugfs.c +++ /dev/null @@ -1,223 +0,0 @@ -/* - * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/spinlock.h> -#include <linux/poll.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/skbuff.h> - -#include <net/mac80211.h> -#include "ieee80211_rate.h" - -#include "rc80211_pid.h" - -static void rate_control_pid_event(struct rc_pid_event_buffer *buf, - enum rc_pid_event_type type, - union rc_pid_event_data *data) -{ - struct rc_pid_event *ev; - unsigned long status; - - spin_lock_irqsave(&buf->lock, status); - ev = &(buf->ring[buf->next_entry]); - buf->next_entry = (buf->next_entry + 1) % RC_PID_EVENT_RING_SIZE; - - ev->timestamp = jiffies; - ev->id = buf->ev_count++; - ev->type = type; - ev->data = *data; - - spin_unlock_irqrestore(&buf->lock, status); - - wake_up_all(&buf->waitqueue); -} - -void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf, - struct ieee80211_tx_status *stat) -{ - union rc_pid_event_data evd; - - memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_status)); - rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd); -} - -void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf, - int index, int rate) -{ - union rc_pid_event_data evd; - - evd.index = index; - evd.rate = rate; - rate_control_pid_event(buf, RC_PID_EVENT_TYPE_RATE_CHANGE, &evd); -} - -void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf, - int index, int rate) -{ - union rc_pid_event_data evd; - - evd.index = index; - evd.rate = rate; - rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_RATE, &evd); -} - -void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf, - s32 pf_sample, s32 prop_err, - s32 int_err, s32 der_err) -{ - union rc_pid_event_data evd; - - evd.pf_sample = pf_sample; - evd.prop_err = prop_err; - evd.int_err = int_err; - evd.der_err = der_err; - rate_control_pid_event(buf, RC_PID_EVENT_TYPE_PF_SAMPLE, &evd); -} - -static int rate_control_pid_events_open(struct inode *inode, struct file *file) -{ - struct rc_pid_sta_info *sinfo = inode->i_private; - struct rc_pid_event_buffer *events = &sinfo->events; - struct rc_pid_events_file_info *file_info; - unsigned int status; - - /* Allocate a state struct */ - file_info = kmalloc(sizeof(*file_info), GFP_KERNEL); - if (file_info == NULL) - return -ENOMEM; - - spin_lock_irqsave(&events->lock, status); - - file_info->next_entry = events->next_entry; - file_info->events = events; - - spin_unlock_irqrestore(&events->lock, status); - - file->private_data = file_info; - - return 0; -} - -static int rate_control_pid_events_release(struct inode *inode, - struct file *file) -{ - struct rc_pid_events_file_info *file_info = file->private_data; - - kfree(file_info); - - return 0; -} - -static unsigned int rate_control_pid_events_poll(struct file *file, - poll_table *wait) -{ - struct rc_pid_events_file_info *file_info = file->private_data; - - poll_wait(file, &file_info->events->waitqueue, wait); - - return POLLIN | POLLRDNORM; -} - -#define RC_PID_PRINT_BUF_SIZE 64 - -static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf, - size_t length, loff_t *offset) -{ - struct rc_pid_events_file_info *file_info = file->private_data; - struct rc_pid_event_buffer *events = file_info->events; - struct rc_pid_event *ev; - char pb[RC_PID_PRINT_BUF_SIZE]; - int ret; - int p; - unsigned int status; - - /* Check if there is something to read. */ - if (events->next_entry == file_info->next_entry) { - if (file->f_flags & O_NONBLOCK) - return -EAGAIN; - - /* Wait */ - ret = wait_event_interruptible(events->waitqueue, - events->next_entry != file_info->next_entry); - - if (ret) - return ret; - } - - /* Write out one event per call. I don't care whether it's a little - * inefficient, this is debugging code anyway. */ - spin_lock_irqsave(&events->lock, status); - - /* Get an event */ - ev = &(events->ring[file_info->next_entry]); - file_info->next_entry = (file_info->next_entry + 1) % - RC_PID_EVENT_RING_SIZE; - - /* Print information about the event. Note that userpace needs to - * provide large enough buffers. */ - length = length < RC_PID_PRINT_BUF_SIZE ? - length : RC_PID_PRINT_BUF_SIZE; - p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp); - switch (ev->type) { - case RC_PID_EVENT_TYPE_TX_STATUS: - p += snprintf(pb + p, length - p, "tx_status %u %u", - ev->data.tx_status.excessive_retries, - ev->data.tx_status.retry_count); - break; - case RC_PID_EVENT_TYPE_RATE_CHANGE: - p += snprintf(pb + p, length - p, "rate_change %d %d", - ev->data.index, ev->data.rate); - break; - case RC_PID_EVENT_TYPE_TX_RATE: - p += snprintf(pb + p, length - p, "tx_rate %d %d", - ev->data.index, ev->data.rate); - break; - case RC_PID_EVENT_TYPE_PF_SAMPLE: - p += snprintf(pb + p, length - p, - "pf_sample %d %d %d %d", - ev->data.pf_sample, ev->data.prop_err, - ev->data.int_err, ev->data.der_err); - break; - } - p += snprintf(pb + p, length - p, "\n"); - - spin_unlock_irqrestore(&events->lock, status); - - if (copy_to_user(buf, pb, p)) - return -EFAULT; - - return p; -} - -#undef RC_PID_PRINT_BUF_SIZE - -static struct file_operations rc_pid_fop_events = { - .owner = THIS_MODULE, - .read = rate_control_pid_events_read, - .poll = rate_control_pid_events_poll, - .open = rate_control_pid_events_open, - .release = rate_control_pid_events_release, -}; - -void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta, - struct dentry *dir) -{ - struct rc_pid_sta_info *spinfo = priv_sta; - - spinfo->events_entry = debugfs_create_file("rc_pid_events", S_IRUGO, - dir, spinfo, - &rc_pid_fop_events); -} - -void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta) -{ - struct rc_pid_sta_info *spinfo = priv_sta; - - debugfs_remove(spinfo->events_entry); -} diff --git a/package/mac80211/src/net/mac80211/rc80211_simple.c b/package/mac80211/src/net/mac80211/rc80211_simple.c deleted file mode 100644 index c4678905a1..0000000000 --- a/package/mac80211/src/net/mac80211/rc80211_simple.c +++ /dev/null @@ -1,392 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/compiler.h> -#include <linux/module.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "debugfs.h" - - -/* This is a minimal implementation of TX rate controlling that can be used - * as the default when no improved mechanisms are available. */ - -#define RATE_CONTROL_NUM_DOWN 20 -#define RATE_CONTROL_NUM_UP 15 - -#define RATE_CONTROL_EMERG_DEC 2 -#define RATE_CONTROL_INTERVAL (HZ / 20) -#define RATE_CONTROL_MIN_TX 10 - -static void rate_control_rate_inc(struct ieee80211_local *local, - struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - int i = sta->txrate_idx; - int maxrate; - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) { - /* forced unicast rate - do not change STA rate */ - return; - } - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1; - - if (i > sband->n_bitrates) - i = sband->n_bitrates - 2; - - while (i + 1 < sband->n_bitrates) { - i++; - if (rate_supported(sta, sband->band, i) && - (maxrate < 0 || i <= maxrate)) { - sta->txrate_idx = i; - break; - } - } -} - - -static void rate_control_rate_dec(struct ieee80211_local *local, - struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_supported_band *sband; - int i = sta->txrate_idx; - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) { - /* forced unicast rate - do not change STA rate */ - return; - } - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - if (i > sband->n_bitrates) - i = sband->n_bitrates; - - while (i > 0) { - i--; - if (rate_supported(sta, sband->band, i)) { - sta->txrate_idx = i; - break; - } - } -} - -struct global_rate_control { - int dummy; -}; - -struct sta_rate_control { - unsigned long last_rate_change; - u32 tx_num_failures; - u32 tx_num_xmit; - - unsigned long avg_rate_update; - u32 tx_avg_rate_sum; - u32 tx_avg_rate_num; - -#ifdef CONFIG_MAC80211_DEBUGFS - struct dentry *tx_avg_rate_sum_dentry; - struct dentry *tx_avg_rate_num_dentry; -#endif -}; - - -static void rate_control_simple_tx_status(void *priv, struct net_device *dev, - struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct sta_info *sta; - struct sta_rate_control *srctrl; - - sta = sta_info_get(local, hdr->addr1); - - if (!sta) - return; - - srctrl = sta->rate_ctrl_priv; - srctrl->tx_num_xmit++; - if (status->excessive_retries) { - srctrl->tx_num_failures++; - sta->tx_retry_failed++; - sta->tx_num_consecutive_failures++; - sta->tx_num_mpdu_fail++; - } else { - sta->last_ack_rssi[0] = sta->last_ack_rssi[1]; - sta->last_ack_rssi[1] = sta->last_ack_rssi[2]; - sta->last_ack_rssi[2] = status->ack_signal; - sta->tx_num_consecutive_failures = 0; - sta->tx_num_mpdu_ok++; - } - sta->tx_retry_count += status->retry_count; - sta->tx_num_mpdu_fail += status->retry_count; - - if (time_after(jiffies, - srctrl->last_rate_change + RATE_CONTROL_INTERVAL) && - srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) { - u32 per_failed; - srctrl->last_rate_change = jiffies; - - per_failed = (100 * sta->tx_num_mpdu_fail) / - (sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok); - /* TODO: calculate average per_failed to make adjusting - * parameters easier */ -#if 0 - if (net_ratelimit()) { - printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n", - sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok, - per_failed); - } -#endif - - /* - * XXX: Make these configurable once we have an - * interface to the rate control algorithms - */ - if (per_failed > RATE_CONTROL_NUM_DOWN) { - rate_control_rate_dec(local, sta); - } else if (per_failed < RATE_CONTROL_NUM_UP) { - rate_control_rate_inc(local, sta); - } - srctrl->tx_avg_rate_sum += status->control.tx_rate->bitrate; - srctrl->tx_avg_rate_num++; - srctrl->tx_num_failures = 0; - srctrl->tx_num_xmit = 0; - } else if (sta->tx_num_consecutive_failures >= - RATE_CONTROL_EMERG_DEC) { - rate_control_rate_dec(local, sta); - } - - if (srctrl->avg_rate_update + 60 * HZ < jiffies) { - srctrl->avg_rate_update = jiffies; - if (srctrl->tx_avg_rate_num > 0) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - DECLARE_MAC_BUF(mac); - printk(KERN_DEBUG "%s: STA %s Average rate: " - "%d (%d/%d)\n", - dev->name, print_mac(mac, sta->addr), - srctrl->tx_avg_rate_sum / - srctrl->tx_avg_rate_num, - srctrl->tx_avg_rate_sum, - srctrl->tx_avg_rate_num); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - srctrl->tx_avg_rate_sum = 0; - srctrl->tx_avg_rate_num = 0; - } - } - - sta_info_put(sta); -} - - -static void -rate_control_simple_get_rate(void *priv, struct net_device *dev, - struct ieee80211_supported_band *sband, - struct sk_buff *skb, - struct rate_selection *sel) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - int rateidx; - u16 fc; - - sta = sta_info_get(local, hdr->addr1); - - /* Send management frames and broadcast/multicast data using lowest - * rate. */ - fc = le16_to_cpu(hdr->frame_control); - if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || - is_multicast_ether_addr(hdr->addr1) || !sta) { - sel->rate = rate_lowest(local, sband, sta); - if (sta) - sta_info_put(sta); - return; - } - - /* If a forced rate is in effect, select it. */ - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) - sta->txrate_idx = sdata->bss->force_unicast_rateidx; - - rateidx = sta->txrate_idx; - - if (rateidx >= sband->n_bitrates) - rateidx = sband->n_bitrates - 1; - - sta->last_txrate_idx = rateidx; - - sta_info_put(sta); - - sel->rate = &sband->bitrates[rateidx]; -} - - -static void rate_control_simple_rate_init(void *priv, void *priv_sta, - struct ieee80211_local *local, - struct sta_info *sta) -{ - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - /* TODO: This routine should consider using RSSI from previous packets - * as we need to have IEEE 802.1X auth succeed immediately after assoc.. - * Until that method is implemented, we will use the lowest supported rate - * as a workaround, */ - sta->txrate_idx = rate_lowest_index(local, sband, sta); -} - - -static void * rate_control_simple_alloc(struct ieee80211_local *local) -{ - struct global_rate_control *rctrl; - - rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC); - - return rctrl; -} - - -static void rate_control_simple_free(void *priv) -{ - struct global_rate_control *rctrl = priv; - kfree(rctrl); -} - - -static void rate_control_simple_clear(void *priv) -{ -} - - -static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp) -{ - struct sta_rate_control *rctrl; - - rctrl = kzalloc(sizeof(*rctrl), gfp); - - return rctrl; -} - - -static void rate_control_simple_free_sta(void *priv, void *priv_sta) -{ - struct sta_rate_control *rctrl = priv_sta; - kfree(rctrl); -} - -#ifdef CONFIG_MAC80211_DEBUGFS - -static int open_file_generic(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - -static ssize_t sta_tx_avg_rate_sum_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct sta_rate_control *srctrl = file->private_data; - char buf[20]; - - sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum); - return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); -} - -static const struct file_operations sta_tx_avg_rate_sum_ops = { - .read = sta_tx_avg_rate_sum_read, - .open = open_file_generic, -}; - -static ssize_t sta_tx_avg_rate_num_read(struct file *file, - char __user *userbuf, - size_t count, loff_t *ppos) -{ - struct sta_rate_control *srctrl = file->private_data; - char buf[20]; - - sprintf(buf, "%d\n", srctrl->tx_avg_rate_num); - return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); -} - -static const struct file_operations sta_tx_avg_rate_num_ops = { - .read = sta_tx_avg_rate_num_read, - .open = open_file_generic, -}; - -static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta, - struct dentry *dir) -{ - struct sta_rate_control *srctrl = priv_sta; - - srctrl->tx_avg_rate_num_dentry = - debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400, - dir, srctrl, &sta_tx_avg_rate_num_ops); - srctrl->tx_avg_rate_sum_dentry = - debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400, - dir, srctrl, &sta_tx_avg_rate_sum_ops); -} - -static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta) -{ - struct sta_rate_control *srctrl = priv_sta; - - debugfs_remove(srctrl->tx_avg_rate_sum_dentry); - debugfs_remove(srctrl->tx_avg_rate_num_dentry); -} -#endif - -static struct rate_control_ops mac80211_rcsimple = { - .name = "simple", - .tx_status = rate_control_simple_tx_status, - .get_rate = rate_control_simple_get_rate, - .rate_init = rate_control_simple_rate_init, - .clear = rate_control_simple_clear, - .alloc = rate_control_simple_alloc, - .free = rate_control_simple_free, - .alloc_sta = rate_control_simple_alloc_sta, - .free_sta = rate_control_simple_free_sta, -#ifdef CONFIG_MAC80211_DEBUGFS - .add_sta_debugfs = rate_control_simple_add_sta_debugfs, - .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs, -#endif -}; - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Simple rate control algorithm"); - -int __init rc80211_simple_init(void) -{ - return ieee80211_rate_control_register(&mac80211_rcsimple); -} - -void rc80211_simple_exit(void) -{ - ieee80211_rate_control_unregister(&mac80211_rcsimple); -} - -#ifdef CONFIG_MAC80211_RC_SIMPLE_MODULE -module_init(rc80211_simple_init); -module_exit(rc80211_simple_exit); -#endif diff --git a/package/mac80211/src/net/mac80211/rx.c b/package/mac80211/src/net/mac80211/rx.c deleted file mode 100644 index 943ba90829..0000000000 --- a/package/mac80211/src/net/mac80211/rx.c +++ /dev/null @@ -1,2119 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/skbuff.h> -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/rcupdate.h> -#include <net/mac80211.h> -#include <net/ieee80211_radiotap.h> - -#include "ieee80211_i.h" -#include "ieee80211_led.h" -#include "wep.h" -#include "wpa.h" -#include "tkip.h" -#include "wme.h" - -u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, - struct tid_ampdu_rx *tid_agg_rx, - struct sk_buff *skb, u16 mpdu_seq_num, - int bar_req); -/* - * monitor mode reception - * - * This function cleans up the SKB, i.e. it removes all the stuff - * only useful for monitoring. - */ -static struct sk_buff *remove_monitor_info(struct ieee80211_local *local, - struct sk_buff *skb, - int rtap_len) -{ - skb_pull(skb, rtap_len); - - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) { - if (likely(skb->len > FCS_LEN)) - skb_trim(skb, skb->len - FCS_LEN); - else { - /* driver bug */ - WARN_ON(1); - dev_kfree_skb(skb); - skb = NULL; - } - } - - return skb; -} - -static inline int should_drop_frame(struct ieee80211_rx_status *status, - struct sk_buff *skb, - int present_fcs_len, - int radiotap_len) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - - if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) - return 1; - if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len)) - return 1; - if (((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) == - cpu_to_le16(IEEE80211_FTYPE_CTL)) && - ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) != - cpu_to_le16(IEEE80211_STYPE_PSPOLL)) && - ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) != - cpu_to_le16(IEEE80211_STYPE_BACK_REQ))) - return 1; - return 0; -} - -/* - * This function copies a received frame to all monitor interfaces and - * returns a cleaned-up SKB that no longer includes the FCS nor the - * radiotap header the driver might have added. - */ -static struct sk_buff * -ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb, - struct ieee80211_rx_status *status, - struct ieee80211_rate *rate) -{ - struct ieee80211_sub_if_data *sdata; - int needed_headroom = 0; - struct ieee80211_radiotap_header *rthdr; - __le64 *rttsft = NULL; - struct ieee80211_rtap_fixed_data { - u8 flags; - u8 rate; - __le16 chan_freq; - __le16 chan_flags; - u8 antsignal; - u8 padding_for_rxflags; - __le16 rx_flags; - } __attribute__ ((packed)) *rtfixed; - struct sk_buff *skb, *skb2; - struct net_device *prev_dev = NULL; - int present_fcs_len = 0; - int rtap_len = 0; - - /* - * First, we may need to make a copy of the skb because - * (1) we need to modify it for radiotap (if not present), and - * (2) the other RX handlers will modify the skb we got. - * - * We don't need to, of course, if we aren't going to return - * the SKB because it has a bad FCS/PLCP checksum. - */ - if (status->flag & RX_FLAG_RADIOTAP) - rtap_len = ieee80211_get_radiotap_len(origskb->data); - else - /* room for radiotap header, always present fields and TSFT */ - needed_headroom = sizeof(*rthdr) + sizeof(*rtfixed) + 8; - - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) - present_fcs_len = FCS_LEN; - - if (!local->monitors) { - if (should_drop_frame(status, origskb, present_fcs_len, - rtap_len)) { - dev_kfree_skb(origskb); - return NULL; - } - - return remove_monitor_info(local, origskb, rtap_len); - } - - if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) { - /* only need to expand headroom if necessary */ - skb = origskb; - origskb = NULL; - - /* - * This shouldn't trigger often because most devices have an - * RX header they pull before we get here, and that should - * be big enough for our radiotap information. We should - * probably export the length to drivers so that we can have - * them allocate enough headroom to start with. - */ - if (skb_headroom(skb) < needed_headroom && - pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) { - dev_kfree_skb(skb); - return NULL; - } - } else { - /* - * Need to make a copy and possibly remove radiotap header - * and FCS from the original. - */ - skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC); - - origskb = remove_monitor_info(local, origskb, rtap_len); - - if (!skb) - return origskb; - } - - /* if necessary, prepend radiotap information */ - if (!(status->flag & RX_FLAG_RADIOTAP)) { - rtfixed = (void *) skb_push(skb, sizeof(*rtfixed)); - rtap_len = sizeof(*rthdr) + sizeof(*rtfixed); - if (status->flag & RX_FLAG_TSFT) { - rttsft = (void *) skb_push(skb, sizeof(*rttsft)); - rtap_len += 8; - } - rthdr = (void *) skb_push(skb, sizeof(*rthdr)); - memset(rthdr, 0, sizeof(*rthdr)); - memset(rtfixed, 0, sizeof(*rtfixed)); - rthdr->it_present = - cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL) | - (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) | - (1 << IEEE80211_RADIOTAP_RX_FLAGS)); - rtfixed->flags = 0; - if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) - rtfixed->flags |= IEEE80211_RADIOTAP_F_FCS; - - if (rttsft) { - *rttsft = cpu_to_le64(status->mactime); - rthdr->it_present |= - cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT); - } - - /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */ - rtfixed->rx_flags = 0; - if (status->flag & - (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC)) - rtfixed->rx_flags |= - cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS); - - rtfixed->rate = rate->bitrate / 5; - - rtfixed->chan_freq = cpu_to_le16(status->freq); - - if (status->band == IEEE80211_BAND_5GHZ) - rtfixed->chan_flags = - cpu_to_le16(IEEE80211_CHAN_OFDM | - IEEE80211_CHAN_5GHZ); - else - rtfixed->chan_flags = - cpu_to_le16(IEEE80211_CHAN_DYN | - IEEE80211_CHAN_2GHZ); - - rtfixed->antsignal = status->ssi; - rthdr->it_len = cpu_to_le16(rtap_len); - } - - skb_reset_mac_header(skb); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (!netif_running(sdata->dev)) - continue; - - if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR) - continue; - - if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) - continue; - - if (prev_dev) { - skb2 = skb_clone(skb, GFP_ATOMIC); - if (skb2) { - skb2->dev = prev_dev; - netif_rx(skb2); - } - } - - prev_dev = sdata->dev; - sdata->dev->stats.rx_packets++; - sdata->dev->stats.rx_bytes += skb->len; - } - - if (prev_dev) { - skb->dev = prev_dev; - netif_rx(skb); - } else - dev_kfree_skb(skb); - - return origskb; -} - - -static void ieee80211_parse_qos(struct ieee80211_txrx_data *rx) -{ - u8 *data = rx->skb->data; - int tid; - - /* does the frame have a qos control field? */ - if (WLAN_FC_IS_QOS_DATA(rx->fc)) { - u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN; - /* frame has qos control */ - tid = qc[0] & QOS_CONTROL_TID_MASK; - if (qc[0] & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT) - rx->flags |= IEEE80211_TXRXD_RX_AMSDU; - else - rx->flags &= ~IEEE80211_TXRXD_RX_AMSDU; - } else { - if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) { - /* Separate TID for management frames */ - tid = NUM_RX_DATA_QUEUES - 1; - } else { - /* no qos control present */ - tid = 0; /* 802.1d - Best Effort */ - } - } - - I802_DEBUG_INC(rx->local->wme_rx_queue[tid]); - /* only a debug counter, sta might not be assigned properly yet */ - if (rx->sta) - I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]); - - rx->u.rx.queue = tid; - /* Set skb->priority to 1d tag if highest order bit of TID is not set. - * For now, set skb->priority to 0 for other cases. */ - rx->skb->priority = (tid > 7) ? 0 : tid; -} - -static void ieee80211_verify_ip_alignment(struct ieee80211_txrx_data *rx) -{ -#ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT - int hdrlen; - - if (!WLAN_FC_DATA_PRESENT(rx->fc)) - return; - - /* - * Drivers are required to align the payload data in a way that - * guarantees that the contained IP header is aligned to a four- - * byte boundary. In the case of regular frames, this simply means - * aligning the payload to a four-byte boundary (because either - * the IP header is directly contained, or IV/RFC1042 headers that - * have a length divisible by four are in front of it. - * - * With A-MSDU frames, however, the payload data address must - * yield two modulo four because there are 14-byte 802.3 headers - * within the A-MSDU frames that push the IP header further back - * to a multiple of four again. Thankfully, the specs were sane - * enough this time around to require padding each A-MSDU subframe - * to a length that is a multiple of four. - * - * Padding like atheros hardware adds which is inbetween the 802.11 - * header and the payload is not supported, the driver is required - * to move the 802.11 header further back in that case. - */ - hdrlen = ieee80211_get_hdrlen(rx->fc); - if (rx->flags & IEEE80211_TXRXD_RX_AMSDU) - hdrlen += ETH_HLEN; - WARN_ON_ONCE(((unsigned long)(rx->skb->data + hdrlen)) & 3); -#endif -} - - -static u32 ieee80211_rx_load_stats(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_rx_status *status, - struct ieee80211_rate *rate) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u32 load = 0, hdrtime; - - /* Estimate total channel use caused by this frame */ - - /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values, - * 1 usec = 1/8 * (1080 / 10) = 13.5 */ - - if (status->band == IEEE80211_BAND_5GHZ || - (status->band == IEEE80211_BAND_5GHZ && - rate->flags & IEEE80211_RATE_ERP_G)) - hdrtime = CHAN_UTIL_HDR_SHORT; - else - hdrtime = CHAN_UTIL_HDR_LONG; - - load = hdrtime; - if (!is_multicast_ether_addr(hdr->addr1)) - load += hdrtime; - - /* TODO: optimise again */ - load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate; - - /* Divide channel_use by 8 to avoid wrapping around the counter */ - load >>= CHAN_UTIL_SHIFT; - - return load; -} - -/* rx handlers */ - -static ieee80211_rx_result -ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx) -{ - if (rx->sta) - rx->sta->channel_use_raw += rx->u.rx.load; - rx->sdata->channel_use_raw += rx->u.rx.load; - return RX_CONTINUE; -} - -static ieee80211_rx_result -ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_local *local = rx->local; - struct sk_buff *skb = rx->skb; - - if (unlikely(local->sta_hw_scanning)) - return ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status); - - if (unlikely(local->sta_sw_scanning)) { - /* drop all the other packets during a software scan anyway */ - if (ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status) - != RX_QUEUED) - dev_kfree_skb(skb); - return RX_QUEUED; - } - - if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) { - /* scanning finished during invoking of handlers */ - I802_DEBUG_INC(local->rx_handlers_drop_passive_scan); - return RX_DROP_UNUSABLE; - } - - return RX_CONTINUE; -} - -static ieee80211_rx_result -ieee80211_rx_h_check(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr; - hdr = (struct ieee80211_hdr *) rx->skb->data; - - /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */ - if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) { - if (unlikely(rx->fc & IEEE80211_FCTL_RETRY && - rx->sta->last_seq_ctrl[rx->u.rx.queue] == - hdr->seq_ctrl)) { - if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) { - rx->local->dot11FrameDuplicateCount++; - rx->sta->num_duplicates++; - } - return RX_DROP_MONITOR; - } else - rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl; - } - - if (unlikely(rx->skb->len < 16)) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_short); - return RX_DROP_MONITOR; - } - - /* Drop disallowed frame classes based on STA auth/assoc state; - * IEEE 802.11, Chap 5.5. - * - * 80211.o does filtering only based on association state, i.e., it - * drops Class 3 frames from not associated stations. hostapd sends - * deauth/disassoc frames when needed. In addition, hostapd is - * responsible for filtering on both auth and assoc states. - */ - if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA || - ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL && - (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) && - rx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) { - if ((!(rx->fc & IEEE80211_FCTL_FROMDS) && - !(rx->fc & IEEE80211_FCTL_TODS) && - (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) - || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) { - /* Drop IBSS frames and frames for other hosts - * silently. */ - return RX_DROP_MONITOR; - } - - return RX_DROP_MONITOR; - } - - return RX_CONTINUE; -} - - -static ieee80211_rx_result -ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; - int keyidx; - int hdrlen; - ieee80211_rx_result result = RX_DROP_UNUSABLE; - struct ieee80211_key *stakey = NULL; - - /* - * Key selection 101 - * - * There are three types of keys: - * - GTK (group keys) - * - PTK (pairwise keys) - * - STK (station-to-station pairwise keys) - * - * When selecting a key, we have to distinguish between multicast - * (including broadcast) and unicast frames, the latter can only - * use PTKs and STKs while the former always use GTKs. Unless, of - * course, actual WEP keys ("pre-RSNA") are used, then unicast - * frames can also use key indizes like GTKs. Hence, if we don't - * have a PTK/STK we check the key index for a WEP key. - * - * Note that in a regular BSS, multicast frames are sent by the - * AP only, associated stations unicast the frame to the AP first - * which then multicasts it on their behalf. - * - * There is also a slight problem in IBSS mode: GTKs are negotiated - * with each station, that is something we don't currently handle. - * The spec seems to expect that one negotiates the same key with - * every station but there's no such requirement; VLANs could be - * possible. - */ - - if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) - return RX_CONTINUE; - - /* - * No point in finding a key and decrypting if the frame is neither - * addressed to us nor a multicast frame. - */ - if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) - return RX_CONTINUE; - - if (rx->sta) - stakey = rcu_dereference(rx->sta->key); - - if (!is_multicast_ether_addr(hdr->addr1) && stakey) { - rx->key = stakey; - } else { - /* - * The device doesn't give us the IV so we won't be - * able to look up the key. That's ok though, we - * don't need to decrypt the frame, we just won't - * be able to keep statistics accurate. - * Except for key threshold notifications, should - * we somehow allow the driver to tell us which key - * the hardware used if this flag is set? - */ - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) - return RX_CONTINUE; - - hdrlen = ieee80211_get_hdrlen(rx->fc); - - if (rx->skb->len < 8 + hdrlen) - return RX_DROP_UNUSABLE; /* TODO: count this? */ - - /* - * no need to call ieee80211_wep_get_keyidx, - * it verifies a bunch of things we've done already - */ - keyidx = rx->skb->data[hdrlen + 3] >> 6; - - rx->key = rcu_dereference(rx->sdata->keys[keyidx]); - - /* - * RSNA-protected unicast frames should always be sent with - * pairwise or station-to-station keys, but for WEP we allow - * using a key index as well. - */ - if (rx->key && rx->key->conf.alg != ALG_WEP && - !is_multicast_ether_addr(hdr->addr1)) - rx->key = NULL; - } - - if (rx->key) { - rx->key->tx_rx_count++; - /* TODO: add threshold stuff again */ - } else { -#ifdef CONFIG_MAC80211_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "%s: RX protected frame," - " but have no key\n", rx->dev->name); -#endif /* CONFIG_MAC80211_DEBUG */ - return RX_DROP_MONITOR; - } - - /* Check for weak IVs if possible */ - if (rx->sta && rx->key->conf.alg == ALG_WEP && - ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) && - (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) || - !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) && - ieee80211_wep_is_weak_iv(rx->skb, rx->key)) - rx->sta->wep_weak_iv_count++; - - switch (rx->key->conf.alg) { - case ALG_WEP: - result = ieee80211_crypto_wep_decrypt(rx); - break; - case ALG_TKIP: - result = ieee80211_crypto_tkip_decrypt(rx); - break; - case ALG_CCMP: - result = ieee80211_crypto_ccmp_decrypt(rx); - break; - } - - /* either the frame has been decrypted or will be dropped */ - rx->u.rx.status->flag |= RX_FLAG_DECRYPTED; - - return result; -} - -static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - DECLARE_MAC_BUF(mac); - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - - if (sdata->bss) - atomic_inc(&sdata->bss->num_sta_ps); - sta->flags |= WLAN_STA_PS; - sta->pspoll = 0; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n", - dev->name, print_mac(mac, sta->addr), sta->aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ -} - -static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sk_buff *skb; - int sent = 0; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_tx_packet_data *pkt_data; - DECLARE_MAC_BUF(mac); - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - if (sdata->bss) - atomic_dec(&sdata->bss->num_sta_ps); - sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM); - sta->pspoll = 0; - if (!skb_queue_empty(&sta->ps_tx_buf)) { - if (local->ops->set_tim) - local->ops->set_tim(local_to_hw(local), sta->aid, 0); - if (sdata->bss) - bss_tim_clear(local, sdata->bss, sta->aid); - } -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %s aid %d exits power save mode\n", - dev->name, print_mac(mac, sta->addr), sta->aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - /* Send all buffered frames to the station */ - while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) { - pkt_data = (struct ieee80211_tx_packet_data *) skb->cb; - sent++; - pkt_data->flags |= IEEE80211_TXPD_REQUEUE; - dev_queue_xmit(skb); - } - while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { - pkt_data = (struct ieee80211_tx_packet_data *) skb->cb; - local->total_ps_buffered--; - sent++; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %s aid %d send PS frame " - "since STA not sleeping anymore\n", dev->name, - print_mac(mac, sta->addr), sta->aid); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - pkt_data->flags |= IEEE80211_TXPD_REQUEUE; - dev_queue_xmit(skb); - } - - return sent; -} - -static ieee80211_rx_result -ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx) -{ - struct sta_info *sta = rx->sta; - struct net_device *dev = rx->dev; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; - - if (!sta) - return RX_CONTINUE; - - /* Update last_rx only for IBSS packets which are for the current - * BSSID to avoid keeping the current IBSS network alive in cases where - * other STAs are using different BSSID. */ - if (rx->sdata->vif.type == IEEE80211_IF_TYPE_IBSS) { - u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len, - IEEE80211_IF_TYPE_IBSS); - if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0) - sta->last_rx = jiffies; - } else - if (!is_multicast_ether_addr(hdr->addr1) || - rx->sdata->vif.type == IEEE80211_IF_TYPE_STA) { - /* Update last_rx only for unicast frames in order to prevent - * the Probe Request frames (the only broadcast frames from a - * STA in infrastructure mode) from keeping a connection alive. - */ - sta->last_rx = jiffies; - } - - if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) - return RX_CONTINUE; - - sta->rx_fragments++; - sta->rx_bytes += rx->skb->len; - sta->last_rssi = rx->u.rx.status->ssi; - sta->last_signal = rx->u.rx.status->signal; - sta->last_noise = rx->u.rx.status->noise; - - if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) { - /* Change STA power saving mode only in the end of a frame - * exchange sequence */ - if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM)) - rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta); - else if (!(sta->flags & WLAN_STA_PS) && - (rx->fc & IEEE80211_FCTL_PM)) - ap_sta_ps_start(dev, sta); - } - - /* Drop data::nullfunc frames silently, since they are used only to - * control station power saving mode. */ - if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc); - /* Update counter and free packet here to avoid counting this - * as a dropped packed. */ - sta->rx_packets++; - dev_kfree_skb(rx->skb); - return RX_QUEUED; - } - - return RX_CONTINUE; -} /* ieee80211_rx_h_sta_process */ - -static inline struct ieee80211_fragment_entry * -ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, - unsigned int frag, unsigned int seq, int rx_queue, - struct sk_buff **skb) -{ - struct ieee80211_fragment_entry *entry; - int idx; - - idx = sdata->fragment_next; - entry = &sdata->fragments[sdata->fragment_next++]; - if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX) - sdata->fragment_next = 0; - - if (!skb_queue_empty(&entry->skb_list)) { -#ifdef CONFIG_MAC80211_DEBUG - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) entry->skb_list.next->data; - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - printk(KERN_DEBUG "%s: RX reassembly removed oldest " - "fragment entry (idx=%d age=%lu seq=%d last_frag=%d " - "addr1=%s addr2=%s\n", - sdata->dev->name, idx, - jiffies - entry->first_frag_time, entry->seq, - entry->last_frag, print_mac(mac, hdr->addr1), - print_mac(mac2, hdr->addr2)); -#endif /* CONFIG_MAC80211_DEBUG */ - __skb_queue_purge(&entry->skb_list); - } - - __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */ - *skb = NULL; - entry->first_frag_time = jiffies; - entry->seq = seq; - entry->rx_queue = rx_queue; - entry->last_frag = frag; - entry->ccmp = 0; - entry->extra_len = 0; - - return entry; -} - -static inline struct ieee80211_fragment_entry * -ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata, - u16 fc, unsigned int frag, unsigned int seq, - int rx_queue, struct ieee80211_hdr *hdr) -{ - struct ieee80211_fragment_entry *entry; - int i, idx; - - idx = sdata->fragment_next; - for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) { - struct ieee80211_hdr *f_hdr; - u16 f_fc; - - idx--; - if (idx < 0) - idx = IEEE80211_FRAGMENT_MAX - 1; - - entry = &sdata->fragments[idx]; - if (skb_queue_empty(&entry->skb_list) || entry->seq != seq || - entry->rx_queue != rx_queue || - entry->last_frag + 1 != frag) - continue; - - f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data; - f_fc = le16_to_cpu(f_hdr->frame_control); - - if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) || - compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 || - compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0) - continue; - - if (entry->first_frag_time + 2 * HZ < jiffies) { - __skb_queue_purge(&entry->skb_list); - continue; - } - return entry; - } - - return NULL; -} - -static ieee80211_rx_result -ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr; - u16 sc; - unsigned int frag, seq; - struct ieee80211_fragment_entry *entry; - struct sk_buff *skb; - DECLARE_MAC_BUF(mac); - - hdr = (struct ieee80211_hdr *) rx->skb->data; - sc = le16_to_cpu(hdr->seq_ctrl); - frag = sc & IEEE80211_SCTL_FRAG; - - if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) || - (rx->skb)->len < 24 || - is_multicast_ether_addr(hdr->addr1))) { - /* not fragmented */ - goto out; - } - I802_DEBUG_INC(rx->local->rx_handlers_fragments); - - seq = (sc & IEEE80211_SCTL_SEQ) >> 4; - - if (frag == 0) { - /* This is the first fragment of a new frame. */ - entry = ieee80211_reassemble_add(rx->sdata, frag, seq, - rx->u.rx.queue, &(rx->skb)); - if (rx->key && rx->key->conf.alg == ALG_CCMP && - (rx->fc & IEEE80211_FCTL_PROTECTED)) { - /* Store CCMP PN so that we can verify that the next - * fragment has a sequential PN value. */ - entry->ccmp = 1; - memcpy(entry->last_pn, - rx->key->u.ccmp.rx_pn[rx->u.rx.queue], - CCMP_PN_LEN); - } - return RX_QUEUED; - } - - /* This is a fragment for a frame that should already be pending in - * fragment cache. Add this fragment to the end of the pending entry. - */ - entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq, - rx->u.rx.queue, hdr); - if (!entry) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); - return RX_DROP_MONITOR; - } - - /* Verify that MPDUs within one MSDU have sequential PN values. - * (IEEE 802.11i, 8.3.3.4.5) */ - if (entry->ccmp) { - int i; - u8 pn[CCMP_PN_LEN], *rpn; - if (!rx->key || rx->key->conf.alg != ALG_CCMP) - return RX_DROP_UNUSABLE; - memcpy(pn, entry->last_pn, CCMP_PN_LEN); - for (i = CCMP_PN_LEN - 1; i >= 0; i--) { - pn[i]++; - if (pn[i]) - break; - } - rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue]; - if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: defrag: CCMP PN not " - "sequential A2=%s" - " PN=%02x%02x%02x%02x%02x%02x " - "(expected %02x%02x%02x%02x%02x%02x)\n", - rx->dev->name, print_mac(mac, hdr->addr2), - rpn[0], rpn[1], rpn[2], rpn[3], rpn[4], - rpn[5], pn[0], pn[1], pn[2], pn[3], - pn[4], pn[5]); - return RX_DROP_UNUSABLE; - } - memcpy(entry->last_pn, pn, CCMP_PN_LEN); - } - - skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc)); - __skb_queue_tail(&entry->skb_list, rx->skb); - entry->last_frag = frag; - entry->extra_len += rx->skb->len; - if (rx->fc & IEEE80211_FCTL_MOREFRAGS) { - rx->skb = NULL; - return RX_QUEUED; - } - - rx->skb = __skb_dequeue(&entry->skb_list); - if (skb_tailroom(rx->skb) < entry->extra_len) { - I802_DEBUG_INC(rx->local->rx_expand_skb_head2); - if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len, - GFP_ATOMIC))) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag); - __skb_queue_purge(&entry->skb_list); - return RX_DROP_UNUSABLE; - } - } - while ((skb = __skb_dequeue(&entry->skb_list))) { - memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len); - dev_kfree_skb(skb); - } - - /* Complete frame has been reassembled - process it now */ - rx->flags |= IEEE80211_TXRXD_FRAGMENTED; - - out: - if (rx->sta) - rx->sta->rx_packets++; - if (is_multicast_ether_addr(hdr->addr1)) - rx->local->dot11MulticastReceivedFrameCount++; - else - ieee80211_led_rx(rx->local); - return RX_CONTINUE; -} - -static ieee80211_rx_result -ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); - struct sk_buff *skb; - int no_pending_pkts; - DECLARE_MAC_BUF(mac); - - if (likely(!rx->sta || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL || - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL || - !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))) - return RX_CONTINUE; - - if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) && - (sdata->vif.type != IEEE80211_IF_TYPE_VLAN)) - return RX_DROP_UNUSABLE; - - skb = skb_dequeue(&rx->sta->tx_filtered); - if (!skb) { - skb = skb_dequeue(&rx->sta->ps_tx_buf); - if (skb) - rx->local->total_ps_buffered--; - } - no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) && - skb_queue_empty(&rx->sta->ps_tx_buf); - - if (skb) { - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) skb->data; - - /* tell TX path to send one frame even though the STA may - * still remain is PS mode after this frame exchange */ - rx->sta->pspoll = 1; - -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n", - print_mac(mac, rx->sta->addr), rx->sta->aid, - skb_queue_len(&rx->sta->ps_tx_buf)); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - - /* Use MoreData flag to indicate whether there are more - * buffered frames for this STA */ - if (no_pending_pkts) { - hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA); - rx->sta->flags &= ~WLAN_STA_TIM; - } else - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); - - dev_queue_xmit(skb); - - if (no_pending_pkts) { - if (rx->local->ops->set_tim) - rx->local->ops->set_tim(local_to_hw(rx->local), - rx->sta->aid, 0); - if (rx->sdata->bss) - bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid); - } -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - } else if (!rx->u.rx.sent_ps_buffered) { - printk(KERN_DEBUG "%s: STA %s sent PS Poll even " - "though there is no buffered frames for it\n", - rx->dev->name, print_mac(mac, rx->sta->addr)); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - - } - - /* Free PS Poll skb here instead of returning RX_DROP that would - * count as an dropped frame. */ - dev_kfree_skb(rx->skb); - - return RX_QUEUED; -} - -static ieee80211_rx_result -ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx) -{ - u16 fc = rx->fc; - u8 *data = rx->skb->data; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data; - - if (!WLAN_FC_IS_QOS_DATA(fc)) - return RX_CONTINUE; - - /* remove the qos control field, update frame type and meta-data */ - memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2); - hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2); - /* change frame type to non QOS */ - rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA; - hdr->frame_control = cpu_to_le16(fc); - - return RX_CONTINUE; -} - -static int -ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx) -{ - if (unlikely(!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED))) { -#ifdef CONFIG_MAC80211_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "%s: dropped frame " - "(unauthorized port)\n", rx->dev->name); -#endif /* CONFIG_MAC80211_DEBUG */ - return -EACCES; - } - - return 0; -} - -static int -ieee80211_drop_unencrypted(struct ieee80211_txrx_data *rx) -{ - /* - * Pass through unencrypted frames if the hardware has - * decrypted them already. - */ - if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) - return 0; - - /* Drop unencrypted frames if key is set. */ - if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) && - (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC && - (rx->key || rx->sdata->drop_unencrypted))) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: RX non-WEP frame, but expected " - "encryption\n", rx->dev->name); - return -EACCES; - } - return 0; -} - -static int -ieee80211_data_to_8023(struct ieee80211_txrx_data *rx) -{ - struct net_device *dev = rx->dev; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; - u16 fc, hdrlen, ethertype; - u8 *payload; - u8 dst[ETH_ALEN]; - u8 src[ETH_ALEN]; - struct sk_buff *skb = rx->skb; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - DECLARE_MAC_BUF(mac3); - DECLARE_MAC_BUF(mac4); - - fc = rx->fc; - - if (unlikely(!WLAN_FC_DATA_PRESENT(fc))) - return -1; - - hdrlen = ieee80211_get_hdrlen(fc); - - /* convert IEEE 802.11 header + possible LLC headers into Ethernet - * header - * IEEE 802.11 address fields: - * ToDS FromDS Addr1 Addr2 Addr3 Addr4 - * 0 0 DA SA BSSID n/a - * 0 1 DA BSSID SA n/a - * 1 0 BSSID SA DA n/a - * 1 1 RA TA DA SA - */ - - switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { - case IEEE80211_FCTL_TODS: - /* BSSID SA DA */ - memcpy(dst, hdr->addr3, ETH_ALEN); - memcpy(src, hdr->addr2, ETH_ALEN); - - if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_AP && - sdata->vif.type != IEEE80211_IF_TYPE_VLAN)) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: dropped ToDS frame " - "(BSSID=%s SA=%s DA=%s)\n", - dev->name, - print_mac(mac, hdr->addr1), - print_mac(mac2, hdr->addr2), - print_mac(mac3, hdr->addr3)); - return -1; - } - break; - case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS): - /* RA TA DA SA */ - memcpy(dst, hdr->addr3, ETH_ALEN); - memcpy(src, hdr->addr4, ETH_ALEN); - - if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS)) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: dropped FromDS&ToDS " - "frame (RA=%s TA=%s DA=%s SA=%s)\n", - rx->dev->name, - print_mac(mac, hdr->addr1), - print_mac(mac2, hdr->addr2), - print_mac(mac3, hdr->addr3), - print_mac(mac4, hdr->addr4)); - return -1; - } - break; - case IEEE80211_FCTL_FROMDS: - /* DA BSSID SA */ - memcpy(dst, hdr->addr1, ETH_ALEN); - memcpy(src, hdr->addr3, ETH_ALEN); - - if (sdata->vif.type != IEEE80211_IF_TYPE_STA || - (is_multicast_ether_addr(dst) && - !compare_ether_addr(src, dev->dev_addr))) - return -1; - break; - case 0: - /* DA SA BSSID */ - memcpy(dst, hdr->addr1, ETH_ALEN); - memcpy(src, hdr->addr2, ETH_ALEN); - - if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: dropped IBSS frame " - "(DA=%s SA=%s BSSID=%s)\n", - dev->name, - print_mac(mac, hdr->addr1), - print_mac(mac2, hdr->addr2), - print_mac(mac3, hdr->addr3)); - } - return -1; - } - break; - } - - if (unlikely(skb->len - hdrlen < 8)) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: RX too short data frame " - "payload\n", dev->name); - } - return -1; - } - - payload = skb->data + hdrlen; - ethertype = (payload[6] << 8) | payload[7]; - - if (likely((compare_ether_addr(payload, rfc1042_header) == 0 && - ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || - compare_ether_addr(payload, bridge_tunnel_header) == 0)) { - /* remove RFC1042 or Bridge-Tunnel encapsulation and - * replace EtherType */ - skb_pull(skb, hdrlen + 6); - memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN); - memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN); - } else { - struct ethhdr *ehdr; - __be16 len; - - skb_pull(skb, hdrlen); - len = htons(skb->len); - ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr)); - memcpy(ehdr->h_dest, dst, ETH_ALEN); - memcpy(ehdr->h_source, src, ETH_ALEN); - ehdr->h_proto = len; - } - return 0; -} - -/* - * requires that rx->skb is a frame with ethernet header - */ -static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx) -{ - static const u8 pae_group_addr[ETH_ALEN] - = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 }; - struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data; - - /* - * Allow EAPOL frames to us/the PAE group address regardless - * of whether the frame was encrypted or not. - */ - if (ehdr->h_proto == htons(ETH_P_PAE) && - (compare_ether_addr(ehdr->h_dest, rx->dev->dev_addr) == 0 || - compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0)) - return true; - - if (ieee80211_802_1x_port_control(rx) || - ieee80211_drop_unencrypted(rx)) - return false; - - return true; -} - -/* - * requires that rx->skb is a frame with ethernet header - */ -static void -ieee80211_deliver_skb(struct ieee80211_txrx_data *rx) -{ - struct net_device *dev = rx->dev; - struct ieee80211_local *local = rx->local; - struct sk_buff *skb, *xmit_skb; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data; - struct sta_info *dsta; - - skb = rx->skb; - xmit_skb = NULL; - - if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP || - sdata->vif.type == IEEE80211_IF_TYPE_VLAN) && - (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) { - if (is_multicast_ether_addr(ehdr->h_dest)) { - /* - * send multicast frames both to higher layers in - * local net stack and back to the wireless medium - */ - xmit_skb = skb_copy(skb, GFP_ATOMIC); - if (!xmit_skb && net_ratelimit()) - printk(KERN_DEBUG "%s: failed to clone " - "multicast frame\n", dev->name); - } else { - dsta = sta_info_get(local, skb->data); - if (dsta && dsta->dev == dev) { - /* - * The destination station is associated to - * this AP (in this VLAN), so send the frame - * directly to it and do not pass it to local - * net stack. - */ - xmit_skb = skb; - skb = NULL; - } - if (dsta) - sta_info_put(dsta); - } - } - - if (skb) { - /* deliver to local stack */ - skb->protocol = eth_type_trans(skb, dev); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); - } - - if (xmit_skb) { - /* send to wireless media */ - xmit_skb->protocol = __constant_htons(ETH_P_802_3); - skb_reset_network_header(xmit_skb); - skb_reset_mac_header(xmit_skb); - dev_queue_xmit(xmit_skb); - } -} - -static ieee80211_rx_result -ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx) -{ - struct net_device *dev = rx->dev; - struct ieee80211_local *local = rx->local; - u16 fc, ethertype; - u8 *payload; - struct sk_buff *skb = rx->skb, *frame = NULL; - const struct ethhdr *eth; - int remaining, err; - u8 dst[ETH_ALEN]; - u8 src[ETH_ALEN]; - DECLARE_MAC_BUF(mac); - - fc = rx->fc; - if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) - return RX_CONTINUE; - - if (unlikely(!WLAN_FC_DATA_PRESENT(fc))) - return RX_DROP_MONITOR; - - if (!(rx->flags & IEEE80211_TXRXD_RX_AMSDU)) - return RX_CONTINUE; - - err = ieee80211_data_to_8023(rx); - if (unlikely(err)) - return RX_DROP_UNUSABLE; - - skb->dev = dev; - - dev->stats.rx_packets++; - dev->stats.rx_bytes += skb->len; - - /* skip the wrapping header */ - eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr)); - if (!eth) - return RX_DROP_UNUSABLE; - - while (skb != frame) { - u8 padding; - __be16 len = eth->h_proto; - unsigned int subframe_len = sizeof(struct ethhdr) + ntohs(len); - - remaining = skb->len; - memcpy(dst, eth->h_dest, ETH_ALEN); - memcpy(src, eth->h_source, ETH_ALEN); - - padding = ((4 - subframe_len) & 0x3); - /* the last MSDU has no padding */ - if (subframe_len > remaining) { - printk(KERN_DEBUG "%s: wrong buffer size", dev->name); - return RX_DROP_UNUSABLE; - } - - skb_pull(skb, sizeof(struct ethhdr)); - /* if last subframe reuse skb */ - if (remaining <= subframe_len + padding) - frame = skb; - else { - frame = dev_alloc_skb(local->hw.extra_tx_headroom + - subframe_len); - - if (frame == NULL) - return RX_DROP_UNUSABLE; - - skb_reserve(frame, local->hw.extra_tx_headroom + - sizeof(struct ethhdr)); - memcpy(skb_put(frame, ntohs(len)), skb->data, - ntohs(len)); - - eth = (struct ethhdr *) skb_pull(skb, ntohs(len) + - padding); - if (!eth) { - printk(KERN_DEBUG "%s: wrong buffer size ", - dev->name); - dev_kfree_skb(frame); - return RX_DROP_UNUSABLE; - } - } - - skb_reset_network_header(frame); - frame->dev = dev; - frame->priority = skb->priority; - rx->skb = frame; - - payload = frame->data; - ethertype = (payload[6] << 8) | payload[7]; - - if (likely((compare_ether_addr(payload, rfc1042_header) == 0 && - ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || - compare_ether_addr(payload, - bridge_tunnel_header) == 0)) { - /* remove RFC1042 or Bridge-Tunnel - * encapsulation and replace EtherType */ - skb_pull(frame, 6); - memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN); - memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN); - } else { - memcpy(skb_push(frame, sizeof(__be16)), - &len, sizeof(__be16)); - memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN); - memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN); - } - - if (!ieee80211_frame_allowed(rx)) { - if (skb == frame) /* last frame */ - return RX_DROP_UNUSABLE; - dev_kfree_skb(frame); - continue; - } - - ieee80211_deliver_skb(rx); - } - - return RX_QUEUED; -} - -static ieee80211_rx_result -ieee80211_rx_h_data(struct ieee80211_txrx_data *rx) -{ - struct net_device *dev = rx->dev; - u16 fc; - int err; - - fc = rx->fc; - if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) - return RX_CONTINUE; - - if (unlikely(!WLAN_FC_DATA_PRESENT(fc))) - return RX_DROP_MONITOR; - - err = ieee80211_data_to_8023(rx); - if (unlikely(err)) - return RX_DROP_UNUSABLE; - - if (!ieee80211_frame_allowed(rx)) - return RX_DROP_MONITOR; - - rx->skb->dev = dev; - - dev->stats.rx_packets++; - dev->stats.rx_bytes += rx->skb->len; - - ieee80211_deliver_skb(rx); - - return RX_QUEUED; -} - -static ieee80211_rx_result -ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_local *local = rx->local; - struct ieee80211_hw *hw = &local->hw; - struct sk_buff *skb = rx->skb; - struct ieee80211_bar *bar = (struct ieee80211_bar *) skb->data; - struct tid_ampdu_rx *tid_agg_rx; - u16 start_seq_num; - u16 tid; - - if (likely((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL)) - return RX_CONTINUE; - - if ((rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BACK_REQ) { - if (!rx->sta) - return RX_CONTINUE; - tid = le16_to_cpu(bar->control) >> 12; - tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]); - if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL) - return RX_CONTINUE; - - start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4; - - /* reset session timer */ - if (tid_agg_rx->timeout) { - unsigned long expires = - jiffies + (tid_agg_rx->timeout / 1000) * HZ; - mod_timer(&tid_agg_rx->session_timer, expires); - } - - /* manage reordering buffer according to requested */ - /* sequence number */ - rcu_read_lock(); - ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL, - start_seq_num, 1); - rcu_read_unlock(); - return RX_DROP_UNUSABLE; - } - - return RX_CONTINUE; -} - -static ieee80211_rx_result -ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_sub_if_data *sdata; - - if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) - return RX_DROP_MONITOR; - - sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); - if ((sdata->vif.type == IEEE80211_IF_TYPE_STA || - sdata->vif.type == IEEE80211_IF_TYPE_IBSS) && - !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)) - ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status); - else - return RX_DROP_MONITOR; - - return RX_QUEUED; -} - -static void ieee80211_rx_michael_mic_report(struct net_device *dev, - struct ieee80211_hdr *hdr, - struct ieee80211_txrx_data *rx) -{ - int keyidx, hdrlen; - DECLARE_MAC_BUF(mac); - DECLARE_MAC_BUF(mac2); - - hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb); - if (rx->skb->len >= hdrlen + 4) - keyidx = rx->skb->data[hdrlen + 3] >> 6; - else - keyidx = -1; - - if (net_ratelimit()) - printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC " - "failure from %s to %s keyidx=%d\n", - dev->name, print_mac(mac, hdr->addr2), - print_mac(mac2, hdr->addr1), keyidx); - - if (!rx->sta) { - /* - * Some hardware seem to generate incorrect Michael MIC - * reports; ignore them to avoid triggering countermeasures. - */ - if (net_ratelimit()) - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for unknown address %s\n", - dev->name, print_mac(mac, hdr->addr2)); - goto ignore; - } - - if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for a frame with no PROTECTED flag (src " - "%s)\n", dev->name, print_mac(mac, hdr->addr2)); - goto ignore; - } - - if (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP && keyidx) { - /* - * APs with pairwise keys should never receive Michael MIC - * errors for non-zero keyidx because these are reserved for - * group keys and only the AP is sending real multicast - * frames in the BSS. - */ - if (net_ratelimit()) - printk(KERN_DEBUG "%s: ignored Michael MIC error for " - "a frame with non-zero keyidx (%d)" - " (src %s)\n", dev->name, keyidx, - print_mac(mac, hdr->addr2)); - goto ignore; - } - - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA && - ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for a frame that cannot be encrypted " - "(fc=0x%04x) (src %s)\n", - dev->name, rx->fc, print_mac(mac, hdr->addr2)); - goto ignore; - } - - mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr); - ignore: - dev_kfree_skb(rx->skb); - rx->skb = NULL; -} - -static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_local *local = rx->local; - struct ieee80211_rtap_hdr { - struct ieee80211_radiotap_header hdr; - u8 flags; - u8 rate; - __le16 chan_freq; - __le16 chan_flags; - } __attribute__ ((packed)) *rthdr; - struct sk_buff *skb = rx->skb, *skb2; - struct net_device *prev_dev = NULL; - struct ieee80211_rx_status *status = rx->u.rx.status; - - if (rx->flags & IEEE80211_TXRXD_RX_CMNTR_REPORTED) - goto out_free_skb; - - if (skb_headroom(skb) < sizeof(*rthdr) && - pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) - goto out_free_skb; - - rthdr = (void *)skb_push(skb, sizeof(*rthdr)); - memset(rthdr, 0, sizeof(*rthdr)); - rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr)); - rthdr->hdr.it_present = - cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL)); - - rthdr->rate = rx->u.rx.rate->bitrate / 5; - rthdr->chan_freq = cpu_to_le16(status->freq); - - if (status->band == IEEE80211_BAND_5GHZ) - rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_OFDM | - IEEE80211_CHAN_5GHZ); - else - rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_DYN | - IEEE80211_CHAN_2GHZ); - - skb_set_mac_header(skb, 0); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (!netif_running(sdata->dev)) - continue; - - if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || - !(sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) - continue; - - if (prev_dev) { - skb2 = skb_clone(skb, GFP_ATOMIC); - if (skb2) { - skb2->dev = prev_dev; - netif_rx(skb2); - } - } - - prev_dev = sdata->dev; - sdata->dev->stats.rx_packets++; - sdata->dev->stats.rx_bytes += skb->len; - } - - if (prev_dev) { - skb->dev = prev_dev; - netif_rx(skb); - skb = NULL; - } else - goto out_free_skb; - - rx->flags |= IEEE80211_TXRXD_RX_CMNTR_REPORTED; - return; - - out_free_skb: - dev_kfree_skb(skb); -} - -typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_txrx_data *); -static ieee80211_rx_handler ieee80211_rx_handlers[] = -{ - ieee80211_rx_h_if_stats, - ieee80211_rx_h_passive_scan, - ieee80211_rx_h_check, - ieee80211_rx_h_decrypt, - ieee80211_rx_h_sta_process, - ieee80211_rx_h_defragment, - ieee80211_rx_h_ps_poll, - ieee80211_rx_h_michael_mic_verify, - /* this must be after decryption - so header is counted in MPDU mic - * must be before pae and data, so QOS_DATA format frames - * are not passed to user space by these functions - */ - ieee80211_rx_h_remove_qos_control, - ieee80211_rx_h_amsdu, - ieee80211_rx_h_data, - ieee80211_rx_h_ctrl, - ieee80211_rx_h_mgmt, - NULL -}; - -static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata, - struct ieee80211_txrx_data *rx, - struct sk_buff *skb) -{ - ieee80211_rx_handler *handler; - ieee80211_rx_result res = RX_DROP_MONITOR; - - rx->skb = skb; - rx->sdata = sdata; - rx->dev = sdata->dev; - - for (handler = ieee80211_rx_handlers; *handler != NULL; handler++) { - res = (*handler)(rx); - - switch (res) { - case RX_CONTINUE: - continue; - case RX_DROP_UNUSABLE: - case RX_DROP_MONITOR: - I802_DEBUG_INC(sdata->local->rx_handlers_drop); - if (rx->sta) - rx->sta->rx_dropped++; - break; - case RX_QUEUED: - I802_DEBUG_INC(sdata->local->rx_handlers_queued); - break; - } - break; - } - - switch (res) { - case RX_CONTINUE: - case RX_DROP_MONITOR: - ieee80211_rx_cooked_monitor(rx); - break; - case RX_DROP_UNUSABLE: - dev_kfree_skb(rx->skb); - break; - } -} - -/* main receive path */ - -static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata, - u8 *bssid, struct ieee80211_txrx_data *rx, - struct ieee80211_hdr *hdr) -{ - int multicast = is_multicast_ether_addr(hdr->addr1); - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_STA: - if (!bssid) - return 0; - if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) { - if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) - return 0; - rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH; - } else if (!multicast && - compare_ether_addr(sdata->dev->dev_addr, - hdr->addr1) != 0) { - if (!(sdata->dev->flags & IFF_PROMISC)) - return 0; - rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH; - } - break; - case IEEE80211_IF_TYPE_IBSS: - if (!bssid) - return 0; - if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) { - if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) - return 0; - rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH; - } else if (!multicast && - compare_ether_addr(sdata->dev->dev_addr, - hdr->addr1) != 0) { - if (!(sdata->dev->flags & IFF_PROMISC)) - return 0; - rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH; - } else if (!rx->sta) - rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb, - bssid, hdr->addr2); - break; - case IEEE80211_IF_TYPE_VLAN: - case IEEE80211_IF_TYPE_AP: - if (!bssid) { - if (compare_ether_addr(sdata->dev->dev_addr, - hdr->addr1)) - return 0; - } else if (!ieee80211_bssid_match(bssid, - sdata->dev->dev_addr)) { - if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) - return 0; - rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH; - } - if (sdata->dev == sdata->local->mdev && - !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) - /* do not receive anything via - * master device when not scanning */ - return 0; - break; - case IEEE80211_IF_TYPE_WDS: - if (bssid || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - return 0; - if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2)) - return 0; - break; - case IEEE80211_IF_TYPE_MNTR: - /* take everything */ - break; - case IEEE80211_IF_TYPE_INVALID: - /* should never get here */ - WARN_ON(1); - break; - } - - return 1; -} - -/* - * This is the actual Rx frames handler. as it blongs to Rx path it must - * be called with rcu_read_lock protection. - */ -static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_rx_status *status, - u32 load, - struct ieee80211_rate *rate) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata; - struct ieee80211_hdr *hdr; - struct ieee80211_txrx_data rx; - u16 type; - int prepares; - struct ieee80211_sub_if_data *prev = NULL; - struct sk_buff *skb_new; - u8 *bssid; - - hdr = (struct ieee80211_hdr *) skb->data; - memset(&rx, 0, sizeof(rx)); - rx.skb = skb; - rx.local = local; - - rx.u.rx.status = status; - rx.u.rx.load = load; - rx.u.rx.rate = rate; - rx.fc = le16_to_cpu(hdr->frame_control); - type = rx.fc & IEEE80211_FCTL_FTYPE; - - if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT) - local->dot11ReceivedFragmentCount++; - - rx.sta = sta_info_get(local, hdr->addr2); - if (rx.sta) { - rx.dev = rx.sta->dev; - rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev); - } - - if ((status->flag & RX_FLAG_MMIC_ERROR)) { - ieee80211_rx_michael_mic_report(local->mdev, hdr, &rx); - goto end; - } - - if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning)) - rx.flags |= IEEE80211_TXRXD_RXIN_SCAN; - - ieee80211_parse_qos(&rx); - ieee80211_verify_ip_alignment(&rx); - - skb = rx.skb; - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - if (!netif_running(sdata->dev)) - continue; - - if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) - continue; - - bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type); - rx.flags |= IEEE80211_TXRXD_RXRA_MATCH; - prepares = prepare_for_handlers(sdata, bssid, &rx, hdr); - - if (!prepares) - continue; - - /* - * frame is destined for this interface, but if it's not - * also for the previous one we handle that after the - * loop to avoid copying the SKB once too much - */ - - if (!prev) { - prev = sdata; - continue; - } - - /* - * frame was destined for the previous interface - * so invoke RX handlers for it - */ - - skb_new = skb_copy(skb, GFP_ATOMIC); - if (!skb_new) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: failed to copy " - "multicast frame for %s", - wiphy_name(local->hw.wiphy), - prev->dev->name); - continue; - } - rx.fc = le16_to_cpu(hdr->frame_control); - ieee80211_invoke_rx_handlers(prev, &rx, skb_new); - prev = sdata; - } - if (prev) { - rx.fc = le16_to_cpu(hdr->frame_control); - ieee80211_invoke_rx_handlers(prev, &rx, skb); - } else - dev_kfree_skb(skb); - - end: - if (rx.sta) - sta_info_put(rx.sta); -} - -#define SEQ_MODULO 0x1000 -#define SEQ_MASK 0xfff - -static inline int seq_less(u16 sq1, u16 sq2) -{ - return (((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1)); -} - -static inline u16 seq_inc(u16 sq) -{ - return ((sq + 1) & SEQ_MASK); -} - -static inline u16 seq_sub(u16 sq1, u16 sq2) -{ - return ((sq1 - sq2) & SEQ_MASK); -} - - -/* - * As it function blongs to Rx path it must be called with - * the proper rcu_read_lock protection for its flow. - */ -u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw, - struct tid_ampdu_rx *tid_agg_rx, - struct sk_buff *skb, u16 mpdu_seq_num, - int bar_req) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_rx_status status; - u16 head_seq_num, buf_size; - int index; - u32 pkt_load; - struct ieee80211_supported_band *sband; - struct ieee80211_rate *rate; - - buf_size = tid_agg_rx->buf_size; - head_seq_num = tid_agg_rx->head_seq_num; - - /* frame with out of date sequence number */ - if (seq_less(mpdu_seq_num, head_seq_num)) { - dev_kfree_skb(skb); - return 1; - } - - /* if frame sequence number exceeds our buffering window size or - * block Ack Request arrived - release stored frames */ - if ((!seq_less(mpdu_seq_num, head_seq_num + buf_size)) || (bar_req)) { - /* new head to the ordering buffer */ - if (bar_req) - head_seq_num = mpdu_seq_num; - else - head_seq_num = - seq_inc(seq_sub(mpdu_seq_num, buf_size)); - /* release stored frames up to new head to stack */ - while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) { - index = seq_sub(tid_agg_rx->head_seq_num, - tid_agg_rx->ssn) - % tid_agg_rx->buf_size; - - if (tid_agg_rx->reorder_buf[index]) { - /* release the reordered frames to stack */ - memcpy(&status, - tid_agg_rx->reorder_buf[index]->cb, - sizeof(status)); - sband = local->hw.wiphy->bands[status.band]; - rate = &sband->bitrates[status.rate_idx]; - pkt_load = ieee80211_rx_load_stats(local, - tid_agg_rx->reorder_buf[index], - &status, rate); - __ieee80211_rx_handle_packet(hw, - tid_agg_rx->reorder_buf[index], - &status, pkt_load, rate); - tid_agg_rx->stored_mpdu_num--; - tid_agg_rx->reorder_buf[index] = NULL; - } - tid_agg_rx->head_seq_num = - seq_inc(tid_agg_rx->head_seq_num); - } - if (bar_req) - return 1; - } - - /* now the new frame is always in the range of the reordering */ - /* buffer window */ - index = seq_sub(mpdu_seq_num, tid_agg_rx->ssn) - % tid_agg_rx->buf_size; - /* check if we already stored this frame */ - if (tid_agg_rx->reorder_buf[index]) { - dev_kfree_skb(skb); - return 1; - } - - /* if arrived mpdu is in the right order and nothing else stored */ - /* release it immediately */ - if (mpdu_seq_num == tid_agg_rx->head_seq_num && - tid_agg_rx->stored_mpdu_num == 0) { - tid_agg_rx->head_seq_num = - seq_inc(tid_agg_rx->head_seq_num); - return 0; - } - - /* put the frame in the reordering buffer */ - tid_agg_rx->reorder_buf[index] = skb; - tid_agg_rx->stored_mpdu_num++; - /* release the buffer until next missing frame */ - index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn) - % tid_agg_rx->buf_size; - while (tid_agg_rx->reorder_buf[index]) { - /* release the reordered frame back to stack */ - memcpy(&status, tid_agg_rx->reorder_buf[index]->cb, - sizeof(status)); - sband = local->hw.wiphy->bands[status.band]; - rate = &sband->bitrates[status.rate_idx]; - pkt_load = ieee80211_rx_load_stats(local, - tid_agg_rx->reorder_buf[index], - &status, rate); - __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index], - &status, pkt_load, rate); - tid_agg_rx->stored_mpdu_num--; - tid_agg_rx->reorder_buf[index] = NULL; - tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num); - index = seq_sub(tid_agg_rx->head_seq_num, - tid_agg_rx->ssn) % tid_agg_rx->buf_size; - } - return 1; -} - -static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local, - struct sk_buff *skb) -{ - struct ieee80211_hw *hw = &local->hw; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct sta_info *sta; - struct tid_ampdu_rx *tid_agg_rx; - u16 fc, sc; - u16 mpdu_seq_num; - u8 ret = 0, *qc; - int tid; - - sta = sta_info_get(local, hdr->addr2); - if (!sta) - return ret; - - fc = le16_to_cpu(hdr->frame_control); - - /* filter the QoS data rx stream according to - * STA/TID and check if this STA/TID is on aggregation */ - if (!WLAN_FC_IS_QOS_DATA(fc)) - goto end_reorder; - - qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN; - tid = qc[0] & QOS_CONTROL_TID_MASK; - tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]); - - if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL) - goto end_reorder; - - /* null data frames are excluded */ - if (unlikely(fc & IEEE80211_STYPE_NULLFUNC)) - goto end_reorder; - - /* new un-ordered ampdu frame - process it */ - - /* reset session timer */ - if (tid_agg_rx->timeout) { - unsigned long expires = - jiffies + (tid_agg_rx->timeout / 1000) * HZ; - mod_timer(&tid_agg_rx->session_timer, expires); - } - - /* if this mpdu is fragmented - terminate rx aggregation session */ - sc = le16_to_cpu(hdr->seq_ctrl); - if (sc & IEEE80211_SCTL_FRAG) { - ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr, - tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP); - ret = 1; - goto end_reorder; - } - - /* according to mpdu sequence number deal with reordering buffer */ - mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4; - ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb, - mpdu_seq_num, 0); -end_reorder: - if (sta) - sta_info_put(sta); - return ret; -} - -/* - * This is the receive path handler. It is called by a low level driver when an - * 802.11 MPDU is received from the hardware. - */ -void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status) -{ - struct ieee80211_local *local = hw_to_local(hw); - u32 pkt_load; - struct ieee80211_rate *rate = NULL; - struct ieee80211_supported_band *sband; - - if (status->band < 0 || - status->band > IEEE80211_NUM_BANDS) { - WARN_ON(1); - return; - } - - sband = local->hw.wiphy->bands[status->band]; - - if (!sband || - status->rate_idx < 0 || - status->rate_idx >= sband->n_bitrates) { - WARN_ON(1); - return; - } - - rate = &sband->bitrates[status->rate_idx]; - - /* - * key references and virtual interfaces are protected using RCU - * and this requires that we are in a read-side RCU section during - * receive processing - */ - rcu_read_lock(); - - /* - * Frames with failed FCS/PLCP checksum are not returned, - * all other frames are returned without radiotap header - * if it was previously present. - * Also, frames with less than 16 bytes are dropped. - */ - skb = ieee80211_rx_monitor(local, skb, status, rate); - if (!skb) { - rcu_read_unlock(); - return; - } - - pkt_load = ieee80211_rx_load_stats(local, skb, status, rate); - local->channel_use_raw += pkt_load; - - if (!ieee80211_rx_reorder_ampdu(local, skb)) - __ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate); - - rcu_read_unlock(); -} -EXPORT_SYMBOL(__ieee80211_rx); - -/* This is a version of the rx handler that can be called from hard irq - * context. Post the skb on the queue and schedule the tasklet */ -void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status) -{ - struct ieee80211_local *local = hw_to_local(hw); - - BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb)); - - skb->dev = local->mdev; - /* copy status into skb->cb for use by tasklet */ - memcpy(skb->cb, status, sizeof(*status)); - skb->pkt_type = IEEE80211_RX_MSG; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_rx_irqsafe); diff --git a/package/mac80211/src/net/mac80211/sta_info.c b/package/mac80211/src/net/mac80211/sta_info.c deleted file mode 100644 index 6b53783966..0000000000 --- a/package/mac80211/src/net/mac80211/sta_info.c +++ /dev/null @@ -1,431 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/timer.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "sta_info.h" -#include "debugfs_sta.h" - -/* Caller must hold local->sta_lock */ -static void sta_info_hash_add(struct ieee80211_local *local, - struct sta_info *sta) -{ - sta->hnext = local->sta_hash[STA_HASH(sta->addr)]; - local->sta_hash[STA_HASH(sta->addr)] = sta; -} - - -/* Caller must hold local->sta_lock */ -static int sta_info_hash_del(struct ieee80211_local *local, - struct sta_info *sta) -{ - struct sta_info *s; - - s = local->sta_hash[STA_HASH(sta->addr)]; - if (!s) - return -ENOENT; - if (s == sta) { - local->sta_hash[STA_HASH(sta->addr)] = s->hnext; - return 0; - } - - while (s->hnext && s->hnext != sta) - s = s->hnext; - if (s->hnext) { - s->hnext = sta->hnext; - return 0; - } - - return -ENOENT; -} - -struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr) -{ - struct sta_info *sta; - - read_lock_bh(&local->sta_lock); - sta = local->sta_hash[STA_HASH(addr)]; - while (sta) { - if (memcmp(sta->addr, addr, ETH_ALEN) == 0) { - __sta_info_get(sta); - break; - } - sta = sta->hnext; - } - read_unlock_bh(&local->sta_lock); - - return sta; -} -EXPORT_SYMBOL(sta_info_get); - - -static void sta_info_release(struct kref *kref) -{ - struct sta_info *sta = container_of(kref, struct sta_info, kref); - struct ieee80211_local *local = sta->local; - struct sk_buff *skb; - int i; - - /* free sta structure; it has already been removed from - * hash table etc. external structures. Make sure that all - * buffered frames are release (one might have been added - * after sta_info_free() was called). */ - while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { - local->total_ps_buffered--; - dev_kfree_skb_any(skb); - } - while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) { - dev_kfree_skb_any(skb); - } - for (i = 0; i < STA_TID_NUM; i++) { - del_timer_sync(&sta->ampdu_mlme.tid_rx[i].session_timer); - del_timer_sync(&sta->ampdu_mlme.tid_tx[i].addba_resp_timer); - } - rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv); - rate_control_put(sta->rate_ctrl); - kfree(sta); -} - - -void sta_info_put(struct sta_info *sta) -{ - kref_put(&sta->kref, sta_info_release); -} -EXPORT_SYMBOL(sta_info_put); - - -struct sta_info * sta_info_add(struct ieee80211_local *local, - struct net_device *dev, u8 *addr, gfp_t gfp) -{ - struct sta_info *sta; - int i; - DECLARE_MAC_BUF(mac); - - sta = kzalloc(sizeof(*sta), gfp); - if (!sta) - return NULL; - - kref_init(&sta->kref); - - sta->rate_ctrl = rate_control_get(local->rate_ctrl); - sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp); - if (!sta->rate_ctrl_priv) { - rate_control_put(sta->rate_ctrl); - kfree(sta); - return NULL; - } - - memcpy(sta->addr, addr, ETH_ALEN); - sta->local = local; - sta->dev = dev; - spin_lock_init(&sta->ampdu_mlme.ampdu_rx); - spin_lock_init(&sta->ampdu_mlme.ampdu_tx); - for (i = 0; i < STA_TID_NUM; i++) { - /* timer_to_tid must be initialized with identity mapping to - * enable session_timer's data differentiation. refer to - * sta_rx_agg_session_timer_expired for useage */ - sta->timer_to_tid[i] = i; - /* tid to tx queue: initialize according to HW (0 is valid) */ - sta->tid_to_tx_q[i] = local->hw.queues; - /* rx timers */ - sta->ampdu_mlme.tid_rx[i].session_timer.function = - sta_rx_agg_session_timer_expired; - sta->ampdu_mlme.tid_rx[i].session_timer.data = - (unsigned long)&sta->timer_to_tid[i]; - init_timer(&sta->ampdu_mlme.tid_rx[i].session_timer); - /* tx timers */ - sta->ampdu_mlme.tid_tx[i].addba_resp_timer.function = - sta_addba_resp_timer_expired; - sta->ampdu_mlme.tid_tx[i].addba_resp_timer.data = - (unsigned long)&sta->timer_to_tid[i]; - init_timer(&sta->ampdu_mlme.tid_tx[i].addba_resp_timer); - } - skb_queue_head_init(&sta->ps_tx_buf); - skb_queue_head_init(&sta->tx_filtered); - __sta_info_get(sta); /* sta used by caller, decremented by - * sta_info_put() */ - write_lock_bh(&local->sta_lock); - list_add(&sta->list, &local->sta_list); - local->num_sta++; - sta_info_hash_add(local, sta); - if (local->ops->sta_notify) { - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - sdata = sdata->u.vlan.ap; - - local->ops->sta_notify(local_to_hw(local), &sdata->vif, - STA_NOTIFY_ADD, addr); - } - write_unlock_bh(&local->sta_lock); - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Added STA %s\n", - wiphy_name(local->hw.wiphy), print_mac(mac, addr)); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - -#ifdef CONFIG_MAC80211_DEBUGFS - /* debugfs entry adding might sleep, so schedule process - * context task for adding entry for STAs that do not yet - * have one. */ - queue_work(local->hw.workqueue, &local->sta_debugfs_add); -#endif - - return sta; -} - -/* Caller must hold local->sta_lock */ -void sta_info_remove(struct sta_info *sta) -{ - struct ieee80211_local *local = sta->local; - struct ieee80211_sub_if_data *sdata; - - /* don't do anything if we've been removed already */ - if (sta_info_hash_del(local, sta)) - return; - - list_del(&sta->list); - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - if (sta->flags & WLAN_STA_PS) { - sta->flags &= ~WLAN_STA_PS; - if (sdata->bss) - atomic_dec(&sdata->bss->num_sta_ps); - } - local->num_sta--; - sta_info_remove_aid_ptr(sta); - -} - -void sta_info_free(struct sta_info *sta) -{ - struct sk_buff *skb; - struct ieee80211_local *local = sta->local; - DECLARE_MAC_BUF(mac); - - might_sleep(); - - write_lock_bh(&local->sta_lock); - sta_info_remove(sta); - write_unlock_bh(&local->sta_lock); - - while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) { - local->total_ps_buffered--; - dev_kfree_skb(skb); - } - while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) { - dev_kfree_skb(skb); - } - -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Removed STA %s\n", - wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr)); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - - ieee80211_key_free(sta->key); - sta->key = NULL; - - if (local->ops->sta_notify) { - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - - if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) - sdata = sdata->u.vlan.ap; - - local->ops->sta_notify(local_to_hw(local), &sdata->vif, - STA_NOTIFY_REMOVE, sta->addr); - } - - rate_control_remove_sta_debugfs(sta); - ieee80211_sta_debugfs_remove(sta); - - sta_info_put(sta); -} - - -static inline int sta_info_buffer_expired(struct ieee80211_local *local, - struct sta_info *sta, - struct sk_buff *skb) -{ - struct ieee80211_tx_packet_data *pkt_data; - int timeout; - - if (!skb) - return 0; - - pkt_data = (struct ieee80211_tx_packet_data *) skb->cb; - - /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */ - timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 / - 15625) * HZ; - if (timeout < STA_TX_BUFFER_EXPIRE) - timeout = STA_TX_BUFFER_EXPIRE; - return time_after(jiffies, pkt_data->jiffies + timeout); -} - - -static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local, - struct sta_info *sta) -{ - unsigned long flags; - struct sk_buff *skb; - DECLARE_MAC_BUF(mac); - - if (skb_queue_empty(&sta->ps_tx_buf)) - return; - - for (;;) { - spin_lock_irqsave(&sta->ps_tx_buf.lock, flags); - skb = skb_peek(&sta->ps_tx_buf); - if (sta_info_buffer_expired(local, sta, skb)) { - skb = __skb_dequeue(&sta->ps_tx_buf); - if (skb_queue_empty(&sta->ps_tx_buf)) - sta->flags &= ~WLAN_STA_TIM; - } else - skb = NULL; - spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags); - - if (skb) { - local->total_ps_buffered--; - printk(KERN_DEBUG "Buffered frame expired (STA " - "%s)\n", print_mac(mac, sta->addr)); - dev_kfree_skb(skb); - } else - break; - } -} - - -static void sta_info_cleanup(unsigned long data) -{ - struct ieee80211_local *local = (struct ieee80211_local *) data; - struct sta_info *sta; - - read_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - __sta_info_get(sta); - sta_info_cleanup_expire_buffered(local, sta); - sta_info_put(sta); - } - read_unlock_bh(&local->sta_lock); - - local->sta_cleanup.expires = - round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL); - add_timer(&local->sta_cleanup); -} - -#ifdef CONFIG_MAC80211_DEBUGFS -static void sta_info_debugfs_add_task(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, sta_debugfs_add); - struct sta_info *sta, *tmp; - - while (1) { - sta = NULL; - read_lock_bh(&local->sta_lock); - list_for_each_entry(tmp, &local->sta_list, list) { - if (!tmp->debugfs.dir) { - sta = tmp; - __sta_info_get(sta); - break; - } - } - read_unlock_bh(&local->sta_lock); - - if (!sta) - break; - - ieee80211_sta_debugfs_add(sta); - rate_control_add_sta_debugfs(sta); - sta_info_put(sta); - } -} -#endif - -void sta_info_init(struct ieee80211_local *local) -{ - rwlock_init(&local->sta_lock); - INIT_LIST_HEAD(&local->sta_list); - - init_timer(&local->sta_cleanup); - local->sta_cleanup.expires = - round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL); - local->sta_cleanup.data = (unsigned long) local; - local->sta_cleanup.function = sta_info_cleanup; - -#ifdef CONFIG_MAC80211_DEBUGFS - INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task); -#endif -} - -int sta_info_start(struct ieee80211_local *local) -{ - add_timer(&local->sta_cleanup); - return 0; -} - -void sta_info_stop(struct ieee80211_local *local) -{ - del_timer(&local->sta_cleanup); - sta_info_flush(local, NULL); -} - -void sta_info_remove_aid_ptr(struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - - if (sta->aid <= 0) - return; - - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - - if (sdata->local->ops->set_tim) - sdata->local->ops->set_tim(local_to_hw(sdata->local), - sta->aid, 0); - if (sdata->bss) - __bss_tim_clear(sdata->bss, sta->aid); -} - - -/** - * sta_info_flush - flush matching STA entries from the STA table - * @local: local interface data - * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs - */ -void sta_info_flush(struct ieee80211_local *local, struct net_device *dev) -{ - struct sta_info *sta, *tmp; - LIST_HEAD(tmp_list); - - write_lock_bh(&local->sta_lock); - list_for_each_entry_safe(sta, tmp, &local->sta_list, list) - if (!dev || dev == sta->dev) { - __sta_info_get(sta); - sta_info_remove(sta); - list_add_tail(&sta->list, &tmp_list); - } - write_unlock_bh(&local->sta_lock); - - list_for_each_entry_safe(sta, tmp, &tmp_list, list) { - sta_info_free(sta); - sta_info_put(sta); - } -} diff --git a/package/mac80211/src/net/mac80211/sta_info.h b/package/mac80211/src/net/mac80211/sta_info.h deleted file mode 100644 index 19f3fb4129..0000000000 --- a/package/mac80211/src/net/mac80211/sta_info.h +++ /dev/null @@ -1,251 +0,0 @@ -/* - * Copyright 2002-2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef STA_INFO_H -#define STA_INFO_H - -#include <linux/list.h> -#include <linux/types.h> -#include <linux/if_ether.h> -#include <linux/kref.h> -#include "ieee80211_key.h" - -/** - * enum ieee80211_sta_info_flags - Stations flags - * - * These flags are used with &struct sta_info's @flags member. - * - * @WLAN_STA_AUTH: Station is authenticated. - * @WLAN_STA_ASSOC: Station is associated. - * @WLAN_STA_PS: Station is in power-save mode - * @WLAN_STA_TIM: TIM bit is on for this PS station (traffic buffered) - * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic. - * This bit is always checked so needs to be enabled for all stations - * when virtual port control is not in use. - * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble - * frames. - * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP. - * @WLAN_STA_WME: Station is a QoS-STA. - * @WLAN_STA_WDS: Station is one of our WDS peers. - */ -enum ieee80211_sta_info_flags { - WLAN_STA_AUTH = 1<<0, - WLAN_STA_ASSOC = 1<<1, - WLAN_STA_PS = 1<<2, - WLAN_STA_TIM = 1<<3, - WLAN_STA_AUTHORIZED = 1<<4, - WLAN_STA_SHORT_PREAMBLE = 1<<5, - WLAN_STA_ASSOC_AP = 1<<6, - WLAN_STA_WME = 1<<7, - WLAN_STA_WDS = 1<<8, -}; - -#define STA_TID_NUM 16 -#define ADDBA_RESP_INTERVAL HZ -#define HT_AGG_MAX_RETRIES (0x3) - -#define HT_AGG_STATE_INITIATOR_SHIFT (4) - -#define HT_ADDBA_REQUESTED_MSK BIT(0) -#define HT_ADDBA_DRV_READY_MSK BIT(1) -#define HT_ADDBA_RECEIVED_MSK BIT(2) -#define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3) -#define HT_AGG_STATE_INITIATOR_MSK BIT(HT_AGG_STATE_INITIATOR_SHIFT) -#define HT_AGG_STATE_IDLE (0x0) -#define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \ - HT_ADDBA_DRV_READY_MSK | \ - HT_ADDBA_RECEIVED_MSK) - -/** - * struct tid_ampdu_tx - TID aggregation information (Tx). - * - * @state: TID's state in session state machine. - * @dialog_token: dialog token for aggregation session - * @ssn: Starting Sequence Number expected to be aggregated. - * @addba_resp_timer: timer for peer's response to addba request - * @addba_req_num: number of times addBA request has been sent. - */ -struct tid_ampdu_tx { - u8 state; - u8 dialog_token; - u16 ssn; - struct timer_list addba_resp_timer; - u8 addba_req_num; -}; - -/** - * struct tid_ampdu_rx - TID aggregation information (Rx). - * - * @state: TID's state in session state machine. - * @dialog_token: dialog token for aggregation session - * @ssn: Starting Sequence Number expected to be aggregated. - * @buf_size: buffer size for incoming A-MPDUs - * @timeout: reset timer value. - * @head_seq_num: head sequence number in reordering buffer. - * @stored_mpdu_num: number of MPDUs in reordering buffer - * @reorder_buf: buffer to reorder incoming aggregated MPDUs - * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) - */ -struct tid_ampdu_rx { - u8 state; - u8 dialog_token; - u16 ssn; - u16 buf_size; - u16 timeout; - u16 head_seq_num; - u16 stored_mpdu_num; - struct sk_buff **reorder_buf; - struct timer_list session_timer; -}; - -/** - * struct sta_ampdu_mlme - STA aggregation information. - * - * @tid_rx: aggregation info for Rx per TID - * @tid_tx: aggregation info for Tx per TID - * @ampdu_rx: for locking sections in aggregation Rx flow - * @ampdu_tx: for locking sectionsi in aggregation Tx flow - * @dialog_token_allocator: dialog token enumerator for each new session; - */ -struct sta_ampdu_mlme { - struct tid_ampdu_rx tid_rx[STA_TID_NUM]; - struct tid_ampdu_tx tid_tx[STA_TID_NUM]; - spinlock_t ampdu_rx; - spinlock_t ampdu_tx; - u8 dialog_token_allocator; -}; - -struct sta_info { - struct kref kref; - struct list_head list; - struct sta_info *hnext; /* next entry in hash table list */ - - struct ieee80211_local *local; - - u8 addr[ETH_ALEN]; - u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */ - u32 flags; /* WLAN_STA_ */ - - struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in - * power saving state */ - int pspoll; /* whether STA has send a PS Poll frame */ - struct sk_buff_head tx_filtered; /* buffer of TX frames that were - * already given to low-level driver, - * but were filtered */ - int clear_dst_mask; - - unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */ - unsigned long rx_bytes, tx_bytes; - unsigned long tx_retry_failed, tx_retry_count; - unsigned long tx_filtered_count; - - unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */ - - unsigned long last_rx; - /* bitmap of supported rates per band */ - u64 supp_rates[IEEE80211_NUM_BANDS]; - int txrate_idx; - /* last rates used to send a frame to this STA */ - int last_txrate_idx, last_nonerp_txrate_idx; - - struct net_device *dev; /* which net device is this station associated - * to */ - - struct ieee80211_key *key; - - u32 tx_num_consecutive_failures; - u32 tx_num_mpdu_ok; - u32 tx_num_mpdu_fail; - - struct rate_control_ref *rate_ctrl; - void *rate_ctrl_priv; - - /* last received seq/frag number from this STA (per RX queue) */ - __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; - unsigned long num_duplicates; /* number of duplicate frames received - * from this STA */ - unsigned long tx_fragments; /* number of transmitted MPDUs */ - unsigned long rx_fragments; /* number of received MPDUs */ - unsigned long rx_dropped; /* number of dropped MPDUs from this STA */ - - int last_rssi; /* RSSI of last received frame from this STA */ - int last_signal; /* signal of last received frame from this STA */ - int last_noise; /* noise of last received frame from this STA */ - int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */ - unsigned long last_ack; - int channel_use; - int channel_use_raw; - -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; - unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; -#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ - - u16 listen_interval; - - struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities - of this STA */ - struct sta_ampdu_mlme ampdu_mlme; - u8 timer_to_tid[STA_TID_NUM]; /* convert timer id to tid */ - u8 tid_to_tx_q[STA_TID_NUM]; /* map tid to tx queue */ - -#ifdef CONFIG_MAC80211_DEBUGFS - struct sta_info_debugfsdentries { - struct dentry *dir; - struct dentry *flags; - struct dentry *num_ps_buf_frames; - struct dentry *last_ack_rssi; - struct dentry *last_ack_ms; - struct dentry *inactive_ms; - struct dentry *last_seq_ctrl; -#ifdef CONFIG_MAC80211_DEBUG_COUNTERS - struct dentry *wme_rx_queue; - struct dentry *wme_tx_queue; -#endif - struct dentry *agg_status; - } debugfs; -#endif -}; - - -/* Maximum number of concurrently registered stations */ -#define MAX_STA_COUNT 2007 - -#define STA_HASH_SIZE 256 -#define STA_HASH(sta) (sta[5]) - - -/* Maximum number of frames to buffer per power saving station */ -#define STA_MAX_TX_BUFFER 128 - -/* Minimum buffered frame expiry time. If STA uses listen interval that is - * smaller than this value, the minimum value here is used instead. */ -#define STA_TX_BUFFER_EXPIRE (10 * HZ) - -/* How often station data is cleaned up (e.g., expiration of buffered frames) - */ -#define STA_INFO_CLEANUP_INTERVAL (10 * HZ) - -static inline void __sta_info_get(struct sta_info *sta) -{ - kref_get(&sta->kref); -} - -struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr); -void sta_info_put(struct sta_info *sta); -struct sta_info * sta_info_add(struct ieee80211_local *local, - struct net_device *dev, u8 *addr, gfp_t gfp); -void sta_info_remove(struct sta_info *sta); -void sta_info_free(struct sta_info *sta); -void sta_info_init(struct ieee80211_local *local); -int sta_info_start(struct ieee80211_local *local); -void sta_info_stop(struct ieee80211_local *local); -void sta_info_remove_aid_ptr(struct sta_info *sta); -void sta_info_flush(struct ieee80211_local *local, struct net_device *dev); - -#endif /* STA_INFO_H */ diff --git a/package/mac80211/src/net/mac80211/tkip.c b/package/mac80211/src/net/mac80211/tkip.c deleted file mode 100644 index 3abe194e4d..0000000000 --- a/package/mac80211/src/net/mac80211/tkip.c +++ /dev/null @@ -1,349 +0,0 @@ -/* - * Copyright 2002-2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/netdevice.h> - -#include <net/mac80211.h> -#include "ieee80211_key.h" -#include "tkip.h" -#include "wep.h" - - -/* TKIP key mixing functions */ - - -#define PHASE1_LOOP_COUNT 8 - - -/* 2-byte by 2-byte subset of the full AES S-box table; second part of this - * table is identical to first part but byte-swapped */ -static const u16 tkip_sbox[256] = -{ - 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154, - 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A, - 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B, - 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B, - 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F, - 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F, - 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5, - 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F, - 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB, - 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397, - 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED, - 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A, - 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194, - 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3, - 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104, - 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D, - 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39, - 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695, - 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83, - 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76, - 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4, - 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B, - 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0, - 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018, - 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751, - 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85, - 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12, - 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9, - 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7, - 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A, - 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8, - 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A, -}; - - -static inline u16 Mk16(u8 x, u8 y) -{ - return ((u16) x << 8) | (u16) y; -} - - -static inline u8 Hi8(u16 v) -{ - return v >> 8; -} - - -static inline u8 Lo8(u16 v) -{ - return v & 0xff; -} - - -static inline u16 Hi16(u32 v) -{ - return v >> 16; -} - - -static inline u16 Lo16(u32 v) -{ - return v & 0xffff; -} - - -static inline u16 RotR1(u16 v) -{ - return (v >> 1) | ((v & 0x0001) << 15); -} - - -static inline u16 tkip_S(u16 val) -{ - u16 a = tkip_sbox[Hi8(val)]; - - return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8); -} - - - -/* P1K := Phase1(TA, TK, TSC) - * TA = transmitter address (48 bits) - * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits) - * TSC = TKIP sequence counter (48 bits, only 32 msb bits used) - * P1K: 80 bits - */ -static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32, - u16 *p1k) -{ - int i, j; - - p1k[0] = Lo16(tsc_IV32); - p1k[1] = Hi16(tsc_IV32); - p1k[2] = Mk16(ta[1], ta[0]); - p1k[3] = Mk16(ta[3], ta[2]); - p1k[4] = Mk16(ta[5], ta[4]); - - for (i = 0; i < PHASE1_LOOP_COUNT; i++) { - j = 2 * (i & 1); - p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j])); - p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j])); - p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j])); - p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j])); - p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i; - } -} - - -static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16, - u8 *rc4key) -{ - u16 ppk[6]; - int i; - - ppk[0] = p1k[0]; - ppk[1] = p1k[1]; - ppk[2] = p1k[2]; - ppk[3] = p1k[3]; - ppk[4] = p1k[4]; - ppk[5] = p1k[4] + tsc_IV16; - - ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0])); - ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2])); - ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4])); - ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6])); - ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8])); - ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10])); - ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12])); - ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14])); - ppk[2] += RotR1(ppk[1]); - ppk[3] += RotR1(ppk[2]); - ppk[4] += RotR1(ppk[3]); - ppk[5] += RotR1(ppk[4]); - - rc4key[0] = Hi8(tsc_IV16); - rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f; - rc4key[2] = Lo8(tsc_IV16); - rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1); - - for (i = 0; i < 6; i++) { - rc4key[4 + 2 * i] = Lo8(ppk[i]); - rc4key[5 + 2 * i] = Hi8(ppk[i]); - } -} - - -/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets - * of the IV. Returns pointer to the octet following IVs (i.e., beginning of - * the packet payload). */ -u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, - u8 iv0, u8 iv1, u8 iv2) -{ - *pos++ = iv0; - *pos++ = iv1; - *pos++ = iv2; - *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */; - *pos++ = key->u.tkip.iv32 & 0xff; - *pos++ = (key->u.tkip.iv32 >> 8) & 0xff; - *pos++ = (key->u.tkip.iv32 >> 16) & 0xff; - *pos++ = (key->u.tkip.iv32 >> 24) & 0xff; - return pos; -} - - -void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta, - u16 *phase1key) -{ - tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], - key->u.tkip.iv32, phase1key); -} - -void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta, - u8 *rc4key) -{ - /* Calculate per-packet key */ - if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) { - /* IV16 wrapped around - perform TKIP phase 1 */ - tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], - key->u.tkip.iv32, key->u.tkip.p1k); - key->u.tkip.tx_initialized = 1; - } - - tkip_mixing_phase2(key->u.tkip.p1k, - &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], - key->u.tkip.iv16, rc4key); -} - -/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the - * beginning of the buffer containing payload. This payload must include - * headroom of eight octets for IV and Ext. IV and taildroom of four octets - * for ICV. @payload_len is the length of payload (_not_ including extra - * headroom and tailroom). @ta is the transmitter addresses. */ -void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm, - struct ieee80211_key *key, - u8 *pos, size_t payload_len, u8 *ta) -{ - u8 rc4key[16]; - - ieee80211_tkip_gen_rc4key(key, ta, rc4key); - pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]); - ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len); -} - - -/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the - * beginning of the buffer containing IEEE 802.11 header payload, i.e., - * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the - * length of payload, including IV, Ext. IV, MIC, ICV. */ -int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm, - struct ieee80211_key *key, - u8 *payload, size_t payload_len, u8 *ta, - int only_iv, int queue, - u32 *out_iv32, u16 *out_iv16) -{ - u32 iv32; - u32 iv16; - u8 rc4key[16], keyid, *pos = payload; - int res; - - if (payload_len < 12) - return -1; - - iv16 = (pos[0] << 8) | pos[2]; - keyid = pos[3]; - iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24); - pos += 8; -#ifdef CONFIG_TKIP_DEBUG - { - int i; - printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len); - for (i = 0; i < payload_len; i++) - printk(" %02x", payload[i]); - printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n", - iv16, iv32); - } -#endif /* CONFIG_TKIP_DEBUG */ - - if (!(keyid & (1 << 5))) - return TKIP_DECRYPT_NO_EXT_IV; - - if ((keyid >> 6) != key->conf.keyidx) - return TKIP_DECRYPT_INVALID_KEYIDX; - - if (key->u.tkip.rx_initialized[queue] && - (iv32 < key->u.tkip.iv32_rx[queue] || - (iv32 == key->u.tkip.iv32_rx[queue] && - iv16 <= key->u.tkip.iv16_rx[queue]))) { -#ifdef CONFIG_TKIP_DEBUG - DECLARE_MAC_BUF(mac); - printk(KERN_DEBUG "TKIP replay detected for RX frame from " - "%s (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n", - print_mac(mac, ta), - iv32, iv16, key->u.tkip.iv32_rx[queue], - key->u.tkip.iv16_rx[queue]); -#endif /* CONFIG_TKIP_DEBUG */ - return TKIP_DECRYPT_REPLAY; - } - - if (only_iv) { - res = TKIP_DECRYPT_OK; - key->u.tkip.rx_initialized[queue] = 1; - goto done; - } - - if (!key->u.tkip.rx_initialized[queue] || - key->u.tkip.iv32_rx[queue] != iv32) { - key->u.tkip.rx_initialized[queue] = 1; - /* IV16 wrapped around - perform TKIP phase 1 */ - tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], - iv32, key->u.tkip.p1k_rx[queue]); -#ifdef CONFIG_TKIP_DEBUG - { - int i; - DECLARE_MAC_BUF(mac); - printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%s" - " TK=", print_mac(mac, ta)); - for (i = 0; i < 16; i++) - printk("%02x ", - key->conf.key[ - ALG_TKIP_TEMP_ENCR_KEY + i]); - printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: P1K="); - for (i = 0; i < 5; i++) - printk("%04x ", key->u.tkip.p1k_rx[queue][i]); - printk("\n"); - } -#endif /* CONFIG_TKIP_DEBUG */ - } - - tkip_mixing_phase2(key->u.tkip.p1k_rx[queue], - &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY], - iv16, rc4key); -#ifdef CONFIG_TKIP_DEBUG - { - int i; - printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key="); - for (i = 0; i < 16; i++) - printk("%02x ", rc4key[i]); - printk("\n"); - } -#endif /* CONFIG_TKIP_DEBUG */ - - res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12); - done: - if (res == TKIP_DECRYPT_OK) { - /* - * Record previously received IV, will be copied into the - * key information after MIC verification. It is possible - * that we don't catch replays of fragments but that's ok - * because the Michael MIC verication will then fail. - */ - *out_iv32 = iv32; - *out_iv16 = iv16; - } - - return res; -} - - diff --git a/package/mac80211/src/net/mac80211/tkip.h b/package/mac80211/src/net/mac80211/tkip.h deleted file mode 100644 index 73d8ef2a93..0000000000 --- a/package/mac80211/src/net/mac80211/tkip.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Copyright 2002-2004, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef TKIP_H -#define TKIP_H - -#include <linux/types.h> -#include <linux/crypto.h> -#include "ieee80211_key.h" - -u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, - u8 iv0, u8 iv1, u8 iv2); -void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta, - u16 *phase1key); -void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta, - u8 *rc4key); -void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm, - struct ieee80211_key *key, - u8 *pos, size_t payload_len, u8 *ta); -enum { - TKIP_DECRYPT_OK = 0, - TKIP_DECRYPT_NO_EXT_IV = -1, - TKIP_DECRYPT_INVALID_KEYIDX = -2, - TKIP_DECRYPT_REPLAY = -3, -}; -int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm, - struct ieee80211_key *key, - u8 *payload, size_t payload_len, u8 *ta, - int only_iv, int queue, - u32 *out_iv32, u16 *out_iv16); - -#endif /* TKIP_H */ diff --git a/package/mac80211/src/net/mac80211/tx.c b/package/mac80211/src/net/mac80211/tx.c deleted file mode 100644 index 181d97015f..0000000000 --- a/package/mac80211/src/net/mac80211/tx.c +++ /dev/null @@ -1,1937 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * - * Transmit and frame generation functions. - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/bitmap.h> -#include <linux/rcupdate.h> -#include <net/net_namespace.h> -#include <net/ieee80211_radiotap.h> -#include <net/cfg80211.h> -#include <net/mac80211.h> -#include <asm/unaligned.h> - -#include "ieee80211_i.h" -#include "ieee80211_led.h" -#include "wep.h" -#include "wpa.h" -#include "wme.h" -#include "ieee80211_rate.h" - -#define IEEE80211_TX_OK 0 -#define IEEE80211_TX_AGAIN 1 -#define IEEE80211_TX_FRAG_AGAIN 2 - -/* misc utils */ - -static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata, - struct ieee80211_hdr *hdr) -{ - /* Set the sequence number for this frame. */ - hdr->seq_ctrl = cpu_to_le16(sdata->sequence); - - /* Increase the sequence number. */ - sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ; -} - -#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP -static void ieee80211_dump_frame(const char *ifname, const char *title, - const struct sk_buff *skb) -{ - const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - DECLARE_MAC_BUF(mac); - - printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len); - if (skb->len < 4) { - printk("\n"); - return; - } - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - if (hdrlen > skb->len) - hdrlen = skb->len; - if (hdrlen >= 4) - printk(" FC=0x%04x DUR=0x%04x", - fc, le16_to_cpu(hdr->duration_id)); - if (hdrlen >= 10) - printk(" A1=%s", print_mac(mac, hdr->addr1)); - if (hdrlen >= 16) - printk(" A2=%s", print_mac(mac, hdr->addr2)); - if (hdrlen >= 24) - printk(" A3=%s", print_mac(mac, hdr->addr3)); - if (hdrlen >= 30) - printk(" A4=%s", print_mac(mac, hdr->addr4)); - printk("\n"); -} -#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */ -static inline void ieee80211_dump_frame(const char *ifname, const char *title, - struct sk_buff *skb) -{ -} -#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */ - -static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr, - int next_frag_len) -{ - int rate, mrate, erp, dur, i; - struct ieee80211_rate *txrate = tx->u.tx.rate; - struct ieee80211_local *local = tx->local; - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - erp = 0; - if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = txrate->flags & IEEE80211_RATE_ERP_G; - - /* - * data and mgmt (except PS Poll): - * - during CFP: 32768 - * - during contention period: - * if addr1 is group address: 0 - * if more fragments = 0 and addr1 is individual address: time to - * transmit one ACK plus SIFS - * if more fragments = 1 and addr1 is individual address: time to - * transmit next fragment plus 2 x ACK plus 3 x SIFS - * - * IEEE 802.11, 9.6: - * - control response frame (CTS or ACK) shall be transmitted using the - * same rate as the immediately previous frame in the frame exchange - * sequence, if this rate belongs to the PHY mandatory rates, or else - * at the highest possible rate belonging to the PHY rates in the - * BSSBasicRateSet - */ - - if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) { - /* TODO: These control frames are not currently sent by - * 80211.o, but should they be implemented, this function - * needs to be updated to support duration field calculation. - * - * RTS: time needed to transmit pending data/mgmt frame plus - * one CTS frame plus one ACK frame plus 3 x SIFS - * CTS: duration of immediately previous RTS minus time - * required to transmit CTS and its SIFS - * ACK: 0 if immediately previous directed data/mgmt had - * more=0, with more=1 duration in ACK frame is duration - * from previous frame minus time needed to transmit ACK - * and its SIFS - * PS Poll: BIT(15) | BIT(14) | aid - */ - return 0; - } - - /* data/mgmt */ - if (0 /* FIX: data/mgmt during CFP */) - return 32768; - - if (group_addr) /* Group address as the destination - no ACK */ - return 0; - - /* Individual destination address: - * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes) - * CTS and ACK frames shall be transmitted using the highest rate in - * basic rate set that is less than or equal to the rate of the - * immediately previous frame and that is using the same modulation - * (CCK or OFDM). If no basic rate set matches with these requirements, - * the highest mandatory rate of the PHY that is less than or equal to - * the rate of the previous frame is used. - * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps - */ - rate = -1; - /* use lowest available if everything fails */ - mrate = sband->bitrates[0].bitrate; - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *r = &sband->bitrates[i]; - - if (r->bitrate > txrate->bitrate) - break; - - if (tx->sdata->basic_rates & BIT(i)) - rate = r->bitrate; - - switch (sband->band) { - case IEEE80211_BAND_2GHZ: { - u32 flag; - if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - flag = IEEE80211_RATE_MANDATORY_G; - else - flag = IEEE80211_RATE_MANDATORY_B; - if (r->flags & flag) - mrate = r->bitrate; - break; - } - case IEEE80211_BAND_5GHZ: - if (r->flags & IEEE80211_RATE_MANDATORY_A) - mrate = r->bitrate; - break; - case IEEE80211_NUM_BANDS: - WARN_ON(1); - break; - } - } - if (rate == -1) { - /* No matching basic rate found; use highest suitable mandatory - * PHY rate */ - rate = mrate; - } - - /* Time needed to transmit ACK - * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up - * to closest integer */ - - dur = ieee80211_frame_duration(local, 10, rate, erp, - tx->sdata->bss_conf.use_short_preamble); - - if (next_frag_len) { - /* Frame is fragmented: duration increases with time needed to - * transmit next fragment plus ACK and 2 x SIFS. */ - dur *= 2; /* ACK + SIFS */ - /* next fragment */ - dur += ieee80211_frame_duration(local, next_frag_len, - txrate->bitrate, erp, - tx->sdata->bss_conf.use_short_preamble); - } - - return dur; -} - -static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local, - int queue) -{ - return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]); -} - -static inline int __ieee80211_queue_pending(const struct ieee80211_local *local, - int queue) -{ - return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]); -} - -static int inline is_ieee80211_device(struct net_device *dev, - struct net_device *master) -{ - return (wdev_priv(dev->ieee80211_ptr) == - wdev_priv(master->ieee80211_ptr)); -} - -/* tx handlers */ - -static ieee80211_tx_result -ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) -{ -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - struct sk_buff *skb = tx->skb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - u32 sta_flags; - - if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) - return TX_CONTINUE; - - if (unlikely(tx->local->sta_sw_scanning) && - ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ)) - return TX_DROP; - - if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED) - return TX_CONTINUE; - - sta_flags = tx->sta ? tx->sta->flags : 0; - - if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) { - if (unlikely(!(sta_flags & WLAN_STA_ASSOC) && - tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS && - (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - DECLARE_MAC_BUF(mac); - printk(KERN_DEBUG "%s: dropped data frame to not " - "associated station %s\n", - tx->dev->name, print_mac(mac, hdr->addr1)); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc); - return TX_DROP; - } - } else { - if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - tx->local->num_sta == 0 && - tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) { - /* - * No associated STAs - no need to send multicast - * frames. - */ - return TX_DROP; - } - return TX_CONTINUE; - } - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; - - if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24) - ieee80211_include_sequence(tx->sdata, hdr); - - return TX_CONTINUE; -} - -/* This function is called whenever the AP is about to exceed the maximum limit - * of buffered frames for power saving STAs. This situation should not really - * happen often during normal operation, so dropping the oldest buffered packet - * from each queue should be OK to make some room for new frames. */ -static void purge_old_ps_buffers(struct ieee80211_local *local) -{ - int total = 0, purged = 0; - struct sk_buff *skb; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - - /* - * virtual interfaces are protected by RCU - */ - rcu_read_lock(); - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - struct ieee80211_if_ap *ap; - if (sdata->dev == local->mdev || - sdata->vif.type != IEEE80211_IF_TYPE_AP) - continue; - ap = &sdata->u.ap; - skb = skb_dequeue(&ap->ps_bc_buf); - if (skb) { - purged++; - dev_kfree_skb(skb); - } - total += skb_queue_len(&ap->ps_bc_buf); - } - rcu_read_unlock(); - - read_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - skb = skb_dequeue(&sta->ps_tx_buf); - if (skb) { - purged++; - dev_kfree_skb(skb); - } - total += skb_queue_len(&sta->ps_tx_buf); - } - read_unlock_bh(&local->sta_lock); - - local->total_ps_buffered = total; - printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n", - wiphy_name(local->hw.wiphy), purged); -} - -static ieee80211_tx_result -ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx) -{ - /* - * broadcast/multicast frame - * - * If any of the associated stations is in power save mode, - * the frame is buffered to be sent after DTIM beacon frame. - * This is done either by the hardware or us. - */ - - /* not AP/IBSS or ordered frame */ - if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER)) - return TX_CONTINUE; - - /* no stations in PS mode */ - if (!atomic_read(&tx->sdata->bss->num_sta_ps)) - return TX_CONTINUE; - - /* buffered in mac80211 */ - if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) { - if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) - purge_old_ps_buffers(tx->local); - if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >= - AP_MAX_BC_BUFFER) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: BC TX buffer full - " - "dropping the oldest frame\n", - tx->dev->name); - } - dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf)); - } else - tx->local->total_ps_buffered++; - skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb); - return TX_QUEUED; - } - - /* buffered in hardware */ - tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM; - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) -{ - struct sta_info *sta = tx->sta; - DECLARE_MAC_BUF(mac); - - if (unlikely(!sta || - ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && - (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP))) - return TX_CONTINUE; - - if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) { - struct ieee80211_tx_packet_data *pkt_data; -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries " - "before %d)\n", - print_mac(mac, sta->addr), sta->aid, - skb_queue_len(&sta->ps_tx_buf)); -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - sta->flags |= WLAN_STA_TIM; - if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) - purge_old_ps_buffers(tx->local); - if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) { - struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf); - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: STA %s TX " - "buffer full - dropping oldest frame\n", - tx->dev->name, print_mac(mac, sta->addr)); - } - dev_kfree_skb(old); - } else - tx->local->total_ps_buffered++; - /* Queue frame to be sent after STA sends an PS Poll frame */ - if (skb_queue_empty(&sta->ps_tx_buf)) { - if (tx->local->ops->set_tim) - tx->local->ops->set_tim(local_to_hw(tx->local), - sta->aid, 1); - if (tx->sdata->bss) - bss_tim_set(tx->local, tx->sdata->bss, sta->aid); - } - pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb; - pkt_data->jiffies = jiffies; - skb_queue_tail(&sta->ps_tx_buf, tx->skb); - return TX_QUEUED; - } -#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - else if (unlikely(sta->flags & WLAN_STA_PS)) { - printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll " - "set -> send frame\n", tx->dev->name, - print_mac(mac, sta->addr)); - } -#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ - sta->pspoll = 0; - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx) -{ - if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)) - return TX_CONTINUE; - - if (tx->flags & IEEE80211_TXRXD_TXUNICAST) - return ieee80211_tx_h_unicast_ps_buf(tx); - else - return ieee80211_tx_h_multicast_ps_buf(tx); -} - -static ieee80211_tx_result -ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_key *key; - u16 fc = tx->fc; - - if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) - tx->key = NULL; - else if (tx->sta && (key = rcu_dereference(tx->sta->key))) - tx->key = key; - else if ((key = rcu_dereference(tx->sdata->default_key))) - tx->key = key; - else if (tx->sdata->drop_unencrypted && - !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) && - !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) { - I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); - return TX_DROP; - } else - tx->key = NULL; - - if (tx->key) { - u16 ftype, stype; - - tx->key->tx_rx_count++; - /* TODO: add threshold stuff again */ - - switch (tx->key->conf.alg) { - case ALG_WEP: - ftype = fc & IEEE80211_FCTL_FTYPE; - stype = fc & IEEE80211_FCTL_STYPE; - - if (ftype == IEEE80211_FTYPE_MGMT && - stype == IEEE80211_STYPE_AUTH) - break; - case ALG_TKIP: - case ALG_CCMP: - if (!WLAN_FC_DATA_PRESENT(fc)) - tx->key = NULL; - break; - } - } - - if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) - tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - size_t hdrlen, per_fragm, num_fragm, payload_len, left; - struct sk_buff **frags, *first, *frag; - int i; - u16 seq; - u8 *pos; - int frag_threshold = tx->local->fragmentation_threshold; - - if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED)) - return TX_CONTINUE; - - first = tx->skb; - - hdrlen = ieee80211_get_hdrlen(tx->fc); - payload_len = first->len - hdrlen; - per_fragm = frag_threshold - hdrlen - FCS_LEN; - num_fragm = DIV_ROUND_UP(payload_len, per_fragm); - - frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC); - if (!frags) - goto fail; - - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); - seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ; - pos = first->data + hdrlen + per_fragm; - left = payload_len - per_fragm; - for (i = 0; i < num_fragm - 1; i++) { - struct ieee80211_hdr *fhdr; - size_t copylen; - - if (left <= 0) - goto fail; - - /* reserve enough extra head and tail room for possible - * encryption */ - frag = frags[i] = - dev_alloc_skb(tx->local->tx_headroom + - frag_threshold + - IEEE80211_ENCRYPT_HEADROOM + - IEEE80211_ENCRYPT_TAILROOM); - if (!frag) - goto fail; - /* Make sure that all fragments use the same priority so - * that they end up using the same TX queue */ - frag->priority = first->priority; - skb_reserve(frag, tx->local->tx_headroom + - IEEE80211_ENCRYPT_HEADROOM); - fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen); - memcpy(fhdr, first->data, hdrlen); - if (i == num_fragm - 2) - fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS); - fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG)); - copylen = left > per_fragm ? per_fragm : left; - memcpy(skb_put(frag, copylen), pos, copylen); - - pos += copylen; - left -= copylen; - } - skb_trim(first, hdrlen + per_fragm); - - tx->u.tx.num_extra_frag = num_fragm - 1; - tx->u.tx.extra_frag = frags; - - return TX_CONTINUE; - - fail: - printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name); - if (frags) { - for (i = 0; i < num_fragm - 1; i++) - if (frags[i]) - dev_kfree_skb(frags[i]); - kfree(frags); - } - I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment); - return TX_DROP; -} - -static ieee80211_tx_result -ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx) -{ - if (!tx->key) - return TX_CONTINUE; - - switch (tx->key->conf.alg) { - case ALG_WEP: - return ieee80211_crypto_wep_encrypt(tx); - case ALG_TKIP: - return ieee80211_crypto_tkip_encrypt(tx); - case ALG_CCMP: - return ieee80211_crypto_ccmp_encrypt(tx); - } - - /* not reached */ - WARN_ON(1); - return TX_DROP; -} - -static ieee80211_tx_result -ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx) -{ - struct rate_selection rsel; - struct ieee80211_supported_band *sband; - - sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band]; - - if (likely(!tx->u.tx.rate)) { - rate_control_get_rate(tx->dev, sband, tx->skb, &rsel); - tx->u.tx.rate = rsel.rate; - if (unlikely(rsel.probe)) { - tx->u.tx.control->flags |= - IEEE80211_TXCTL_RATE_CTRL_PROBE; - tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - tx->u.tx.control->alt_retry_rate = tx->u.tx.rate; - tx->u.tx.rate = rsel.probe; - } else - tx->u.tx.control->alt_retry_rate = NULL; - - if (!tx->u.tx.rate) - return TX_DROP; - } else - tx->u.tx.control->alt_retry_rate = NULL; - - if (tx->sdata->bss_conf.use_cts_prot && - (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) { - tx->u.tx.last_frag_rate = tx->u.tx.rate; - if (rsel.probe) - tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - else - tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - tx->u.tx.rate = rsel.nonerp; - tx->u.tx.control->tx_rate = rsel.nonerp; - tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE; - } else { - tx->u.tx.last_frag_rate = tx->u.tx.rate; - tx->u.tx.control->tx_rate = tx->u.tx.rate; - } - tx->u.tx.control->tx_rate = tx->u.tx.rate; - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc = le16_to_cpu(hdr->frame_control); - u16 dur; - struct ieee80211_tx_control *control = tx->u.tx.control; - - if (!control->retry_limit) { - if (!is_multicast_ether_addr(hdr->addr1)) { - if (tx->skb->len + FCS_LEN > tx->local->rts_threshold - && tx->local->rts_threshold < - IEEE80211_MAX_RTS_THRESHOLD) { - control->flags |= - IEEE80211_TXCTL_USE_RTS_CTS; - control->flags |= - IEEE80211_TXCTL_LONG_RETRY_LIMIT; - control->retry_limit = - tx->local->long_retry_limit; - } else { - control->retry_limit = - tx->local->short_retry_limit; - } - } else { - control->retry_limit = 1; - } - } - - if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) { - /* Do not use multiple retry rates when sending fragmented - * frames. - * TODO: The last fragment could still use multiple retry - * rates. */ - control->alt_retry_rate = NULL; - } - - /* Use CTS protection for unicast frames sent using extended rates if - * there are associated non-ERP stations and RTS/CTS is not configured - * for the frame. */ - if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) && - (tx->u.tx.rate->flags & IEEE80211_RATE_ERP_G) && - (tx->flags & IEEE80211_TXRXD_TXUNICAST) && - tx->sdata->bss_conf.use_cts_prot && - !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS)) - control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT; - - /* Transmit data frames using short preambles if the driver supports - * short preambles at the selected rate and short preambles are - * available on the network at the current point in time. */ - if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) && - (tx->u.tx.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) && - tx->sdata->bss_conf.use_short_preamble && - (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) { - tx->u.tx.control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE; - } - - /* Setup duration field for the first fragment of the frame. Duration - * for remaining fragments will be updated when they are being sent - * to low-level driver in ieee80211_tx(). */ - dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1), - (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ? - tx->u.tx.extra_frag[0]->len : 0); - hdr->duration_id = cpu_to_le16(dur); - - if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) || - (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) { - struct ieee80211_supported_band *sband; - struct ieee80211_rate *rate, *baserate; - int idx; - - sband = tx->local->hw.wiphy->bands[ - tx->local->hw.conf.channel->band]; - - /* Do not use multiple retry rates when using RTS/CTS */ - control->alt_retry_rate = NULL; - - /* Use min(data rate, max base rate) as CTS/RTS rate */ - rate = tx->u.tx.rate; - baserate = NULL; - - for (idx = 0; idx < sband->n_bitrates; idx++) { - if (sband->bitrates[idx].bitrate > rate->bitrate) - continue; - if (tx->sdata->basic_rates & BIT(idx) && - (!baserate || - (baserate->bitrate < sband->bitrates[idx].bitrate))) - baserate = &sband->bitrates[idx]; - } - - if (baserate) - control->rts_cts_rate = baserate; - else - control->rts_cts_rate = &sband->bitrates[0]; - } - - if (tx->sta) { - tx->sta->tx_packets++; - tx->sta->tx_fragments++; - tx->sta->tx_bytes += tx->skb->len; - if (tx->u.tx.extra_frag) { - int i; - tx->sta->tx_fragments += tx->u.tx.num_extra_frag; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - tx->sta->tx_bytes += - tx->u.tx.extra_frag[i]->len; - } - } - } - - return TX_CONTINUE; -} - -static ieee80211_tx_result -ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_local *local = tx->local; - struct sk_buff *skb = tx->skb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u32 load = 0, hdrtime; - struct ieee80211_rate *rate = tx->u.tx.rate; - - /* TODO: this could be part of tx_status handling, so that the number - * of retries would be known; TX rate should in that case be stored - * somewhere with the packet */ - - /* Estimate total channel use caused by this frame */ - - /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values, - * 1 usec = 1/8 * (1080 / 10) = 13.5 */ - - if (tx->u.tx.channel->band == IEEE80211_BAND_5GHZ || - (tx->u.tx.channel->band == IEEE80211_BAND_2GHZ && - rate->flags & IEEE80211_RATE_ERP_G)) - hdrtime = CHAN_UTIL_HDR_SHORT; - else - hdrtime = CHAN_UTIL_HDR_LONG; - - load = hdrtime; - if (!is_multicast_ether_addr(hdr->addr1)) - load += hdrtime; - - if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS) - load += 2 * hdrtime; - else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) - load += hdrtime; - - /* TODO: optimise again */ - load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate; - - if (tx->u.tx.extra_frag) { - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - load += 2 * hdrtime; - load += tx->u.tx.extra_frag[i]->len * - tx->u.tx.rate->bitrate; - } - } - - /* Divide channel_use by 8 to avoid wrapping around the counter */ - load >>= CHAN_UTIL_SHIFT; - local->channel_use_raw += load; - if (tx->sta) - tx->sta->channel_use_raw += load; - tx->sdata->channel_use_raw += load; - - return TX_CONTINUE; -} - - -typedef ieee80211_tx_result (*ieee80211_tx_handler)(struct ieee80211_txrx_data *); -static ieee80211_tx_handler ieee80211_tx_handlers[] = -{ - ieee80211_tx_h_check_assoc, - ieee80211_tx_h_sequence, - ieee80211_tx_h_ps_buf, - ieee80211_tx_h_select_key, - ieee80211_tx_h_michael_mic_add, - ieee80211_tx_h_fragment, - ieee80211_tx_h_encrypt, - ieee80211_tx_h_rate_ctrl, - ieee80211_tx_h_misc, - ieee80211_tx_h_load_stats, - NULL -}; - -/* actual transmit path */ - -/* - * deal with packet injection down monitor interface - * with Radiotap Header -- only called for monitor mode interface - */ -static ieee80211_tx_result -__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx, - struct sk_buff *skb) -{ - /* - * this is the moment to interpret and discard the radiotap header that - * must be at the start of the packet injected in Monitor mode - * - * Need to take some care with endian-ness since radiotap - * args are little-endian - */ - - struct ieee80211_radiotap_iterator iterator; - struct ieee80211_radiotap_header *rthdr = - (struct ieee80211_radiotap_header *) skb->data; - struct ieee80211_supported_band *sband; - int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len); - struct ieee80211_tx_control *control = tx->u.tx.control; - - sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band]; - - control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - tx->flags |= IEEE80211_TXRXD_TX_INJECTED; - tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED; - - /* - * for every radiotap entry that is present - * (ieee80211_radiotap_iterator_next returns -ENOENT when no more - * entries present, or -EINVAL on error) - */ - - while (!ret) { - int i, target_rate; - - ret = ieee80211_radiotap_iterator_next(&iterator); - - if (ret) - continue; - - /* see if this argument is something we can use */ - switch (iterator.this_arg_index) { - /* - * You must take care when dereferencing iterator.this_arg - * for multibyte types... the pointer is not aligned. Use - * get_unaligned((type *)iterator.this_arg) to dereference - * iterator.this_arg for type "type" safely on all arches. - */ - case IEEE80211_RADIOTAP_RATE: - /* - * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps - * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps - */ - target_rate = (*iterator.this_arg) * 5; - for (i = 0; i < sband->n_bitrates; i++) { - struct ieee80211_rate *r; - - r = &sband->bitrates[i]; - - if (r->bitrate == target_rate) { - tx->u.tx.rate = r; - break; - } - } - break; - - case IEEE80211_RADIOTAP_ANTENNA: - /* - * radiotap uses 0 for 1st ant, mac80211 is 1 for - * 1st ant - */ - control->antenna_sel_tx = (*iterator.this_arg) + 1; - break; - -#if 0 - case IEEE80211_RADIOTAP_DBM_TX_POWER: - control->power_level = *iterator.this_arg; - break; -#endif - - case IEEE80211_RADIOTAP_FLAGS: - if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) { - /* - * this indicates that the skb we have been - * handed has the 32-bit FCS CRC at the end... - * we should react to that by snipping it off - * because it will be recomputed and added - * on transmission - */ - if (skb->len < (iterator.max_length + FCS_LEN)) - return TX_DROP; - - skb_trim(skb, skb->len - FCS_LEN); - } - if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP) - control->flags &= - ~IEEE80211_TXCTL_DO_NOT_ENCRYPT; - if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG) - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; - break; - - /* - * Please update the file - * Documentation/networking/mac80211-injection.txt - * when parsing new fields here. - */ - - default: - break; - } - } - - if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */ - return TX_DROP; - - /* - * remove the radiotap header - * iterator->max_length was sanity-checked against - * skb->len by iterator init - */ - skb_pull(skb, iterator.max_length); - - return TX_CONTINUE; -} - -/* - * initialises @tx - */ -static ieee80211_tx_result -__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, - struct sk_buff *skb, - struct net_device *dev, - struct ieee80211_tx_control *control) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hdr *hdr; - struct ieee80211_sub_if_data *sdata; - - int hdrlen; - - memset(tx, 0, sizeof(*tx)); - tx->skb = skb; - tx->dev = dev; /* use original interface */ - tx->local = local; - tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev); - tx->u.tx.control = control; - /* - * Set this flag (used below to indicate "automatic fragmentation"), - * it will be cleared/left by radiotap as desired. - */ - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; - - /* process and remove the injection radiotap header */ - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) { - if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP) - return TX_DROP; - - /* - * __ieee80211_parse_tx_radiotap has now removed - * the radiotap header that was present and pre-filled - * 'tx' with tx control information. - */ - } - - hdr = (struct ieee80211_hdr *) skb->data; - - tx->sta = sta_info_get(local, hdr->addr1); - tx->fc = le16_to_cpu(hdr->frame_control); - - if (is_multicast_ether_addr(hdr->addr1)) { - tx->flags &= ~IEEE80211_TXRXD_TXUNICAST; - control->flags |= IEEE80211_TXCTL_NO_ACK; - } else { - tx->flags |= IEEE80211_TXRXD_TXUNICAST; - control->flags &= ~IEEE80211_TXCTL_NO_ACK; - } - - if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) { - if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) && - skb->len + FCS_LEN > local->fragmentation_threshold && - !local->ops->set_frag_threshold) - tx->flags |= IEEE80211_TXRXD_FRAGMENTED; - else - tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED; - } - - if (!tx->sta) - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - else if (tx->sta->clear_dst_mask) { - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - tx->sta->clear_dst_mask = 0; - } - - hdrlen = ieee80211_get_hdrlen(tx->fc); - if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) { - u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)]; - tx->ethertype = (pos[0] << 8) | pos[1]; - } - control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT; - - return TX_CONTINUE; -} - -/* - * NB: @tx is uninitialised when passed in here - */ -static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx, - struct sk_buff *skb, - struct net_device *mdev, - struct ieee80211_tx_control *control) -{ - struct ieee80211_tx_packet_data *pkt_data; - struct net_device *dev; - - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; - dev = dev_get_by_index(&init_net, pkt_data->ifindex); - if (unlikely(dev && !is_ieee80211_device(dev, mdev))) { - dev_put(dev); - dev = NULL; - } - if (unlikely(!dev)) - return -ENODEV; - /* initialises tx with control */ - __ieee80211_tx_prepare(tx, skb, dev, control); - dev_put(dev); - return 0; -} - -static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_txrx_data *tx) -{ - struct ieee80211_tx_control *control = tx->u.tx.control; - int ret, i; - - if (!ieee80211_qdisc_installed(local->mdev) && - __ieee80211_queue_stopped(local, 0)) { - netif_stop_queue(local->mdev); - return IEEE80211_TX_AGAIN; - } - if (skb) { - ieee80211_dump_frame(wiphy_name(local->hw.wiphy), - "TX to low-level driver", skb); - ret = local->ops->tx(local_to_hw(local), skb, control); - if (ret) - return IEEE80211_TX_AGAIN; - local->mdev->trans_start = jiffies; - ieee80211_led_tx(local, 1); - } - if (tx->u.tx.extra_frag) { - control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS | - IEEE80211_TXCTL_USE_CTS_PROTECT | - IEEE80211_TXCTL_CLEAR_DST_MASK | - IEEE80211_TXCTL_FIRST_FRAGMENT); - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (!tx->u.tx.extra_frag[i]) - continue; - if (__ieee80211_queue_stopped(local, control->queue)) - return IEEE80211_TX_FRAG_AGAIN; - if (i == tx->u.tx.num_extra_frag) { - control->tx_rate = tx->u.tx.last_frag_rate; - - if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG) - control->flags |= - IEEE80211_TXCTL_RATE_CTRL_PROBE; - else - control->flags &= - ~IEEE80211_TXCTL_RATE_CTRL_PROBE; - } - - ieee80211_dump_frame(wiphy_name(local->hw.wiphy), - "TX to low-level driver", - tx->u.tx.extra_frag[i]); - ret = local->ops->tx(local_to_hw(local), - tx->u.tx.extra_frag[i], - control); - if (ret) - return IEEE80211_TX_FRAG_AGAIN; - local->mdev->trans_start = jiffies; - ieee80211_led_tx(local, 1); - tx->u.tx.extra_frag[i] = NULL; - } - kfree(tx->u.tx.extra_frag); - tx->u.tx.extra_frag = NULL; - } - return IEEE80211_TX_OK; -} - -static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_tx_control *control) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct sta_info *sta; - ieee80211_tx_handler *handler; - struct ieee80211_txrx_data tx; - ieee80211_tx_result res = TX_DROP, res_prepare; - int ret, i; - - WARN_ON(__ieee80211_queue_pending(local, control->queue)); - - if (unlikely(skb->len < 10)) { - dev_kfree_skb(skb); - return 0; - } - - /* initialises tx */ - res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control); - - if (res_prepare == TX_DROP) { - dev_kfree_skb(skb); - return 0; - } - - /* - * key references are protected using RCU and this requires that - * we are in a read-site RCU section during receive processing - */ - rcu_read_lock(); - - sta = tx.sta; - tx.u.tx.channel = local->hw.conf.channel; - - for (handler = ieee80211_tx_handlers; *handler != NULL; - handler++) { - res = (*handler)(&tx); - if (res != TX_CONTINUE) - break; - } - - skb = tx.skb; /* handlers are allowed to change skb */ - - if (sta) - sta_info_put(sta); - - if (unlikely(res == TX_DROP)) { - I802_DEBUG_INC(local->tx_handlers_drop); - goto drop; - } - - if (unlikely(res == TX_QUEUED)) { - I802_DEBUG_INC(local->tx_handlers_queued); - rcu_read_unlock(); - return 0; - } - - if (tx.u.tx.extra_frag) { - for (i = 0; i < tx.u.tx.num_extra_frag; i++) { - int next_len, dur; - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) - tx.u.tx.extra_frag[i]->data; - - if (i + 1 < tx.u.tx.num_extra_frag) { - next_len = tx.u.tx.extra_frag[i + 1]->len; - } else { - next_len = 0; - tx.u.tx.rate = tx.u.tx.last_frag_rate; - } - dur = ieee80211_duration(&tx, 0, next_len); - hdr->duration_id = cpu_to_le16(dur); - } - } - -retry: - ret = __ieee80211_tx(local, skb, &tx); - if (ret) { - struct ieee80211_tx_stored_packet *store = - &local->pending_packet[control->queue]; - - if (ret == IEEE80211_TX_FRAG_AGAIN) - skb = NULL; - set_bit(IEEE80211_LINK_STATE_PENDING, - &local->state[control->queue]); - smp_mb(); - /* When the driver gets out of buffers during sending of - * fragments and calls ieee80211_stop_queue, there is - * a small window between IEEE80211_LINK_STATE_XOFF and - * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer - * gets available in that window (i.e. driver calls - * ieee80211_wake_queue), we would end up with ieee80211_tx - * called with IEEE80211_LINK_STATE_PENDING. Prevent this by - * continuing transmitting here when that situation is - * possible to have happened. */ - if (!__ieee80211_queue_stopped(local, control->queue)) { - clear_bit(IEEE80211_LINK_STATE_PENDING, - &local->state[control->queue]); - goto retry; - } - memcpy(&store->control, control, - sizeof(struct ieee80211_tx_control)); - store->skb = skb; - store->extra_frag = tx.u.tx.extra_frag; - store->num_extra_frag = tx.u.tx.num_extra_frag; - store->last_frag_rate = tx.u.tx.last_frag_rate; - store->last_frag_rate_ctrl_probe = - !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG); - } - rcu_read_unlock(); - return 0; - - drop: - if (skb) - dev_kfree_skb(skb); - for (i = 0; i < tx.u.tx.num_extra_frag; i++) - if (tx.u.tx.extra_frag[i]) - dev_kfree_skb(tx.u.tx.extra_frag[i]); - kfree(tx.u.tx.extra_frag); - rcu_read_unlock(); - return 0; -} - -/* device xmit handlers */ - -int ieee80211_master_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct ieee80211_tx_control control; - struct ieee80211_tx_packet_data *pkt_data; - struct net_device *odev = NULL; - struct ieee80211_sub_if_data *osdata; - int headroom; - int ret; - - /* - * copy control out of the skb so other people can use skb->cb - */ - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; - memset(&control, 0, sizeof(struct ieee80211_tx_control)); - - if (pkt_data->ifindex) - odev = dev_get_by_index(&init_net, pkt_data->ifindex); - if (unlikely(odev && !is_ieee80211_device(odev, dev))) { - dev_put(odev); - odev = NULL; - } - if (unlikely(!odev)) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Discarded packet with nonexistent " - "originating device\n", dev->name); -#endif - dev_kfree_skb(skb); - return 0; - } - osdata = IEEE80211_DEV_TO_SUB_IF(odev); - - headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM; - if (skb_headroom(skb) < headroom) { - if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) { - dev_kfree_skb(skb); - dev_put(odev); - return 0; - } - } - - control.vif = &osdata->vif; - control.type = osdata->vif.type; - if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS) - control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS; - if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT) - control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) - control.flags |= IEEE80211_TXCTL_REQUEUE; - if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME) - control.flags |= IEEE80211_TXCTL_EAPOL_FRAME; - if (pkt_data->flags & IEEE80211_TXPD_AMPDU) - control.flags |= IEEE80211_TXCTL_AMPDU; - control.queue = pkt_data->queue; - - ret = ieee80211_tx(odev, skb, &control); - dev_put(odev); - - return ret; -} - -int ieee80211_monitor_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_tx_packet_data *pkt_data; - struct ieee80211_radiotap_header *prthdr = - (struct ieee80211_radiotap_header *)skb->data; - u16 len_rthdr; - - /* check for not even having the fixed radiotap header part */ - if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header))) - goto fail; /* too short to be possibly valid */ - - /* is it a header version we can trust to find length from? */ - if (unlikely(prthdr->it_version)) - goto fail; /* only version 0 is supported */ - - /* then there must be a radiotap header with a length we can use */ - len_rthdr = ieee80211_get_radiotap_len(skb->data); - - /* does the skb contain enough to deliver on the alleged length? */ - if (unlikely(skb->len < len_rthdr)) - goto fail; /* skb too short for claimed rt header extent */ - - skb->dev = local->mdev; - - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; - memset(pkt_data, 0, sizeof(*pkt_data)); - /* needed because we set skb device to master */ - pkt_data->ifindex = dev->ifindex; - - pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT; - - /* - * fix up the pointers accounting for the radiotap - * header still being in there. We are being given - * a precooked IEEE80211 header so no need for - * normal processing - */ - skb_set_mac_header(skb, len_rthdr); - /* - * these are just fixed to the end of the rt area since we - * don't have any better information and at this point, nobody cares - */ - skb_set_network_header(skb, len_rthdr); - skb_set_transport_header(skb, len_rthdr); - - /* pass the radiotap header up to the next stage intact */ - dev_queue_xmit(skb); - return NETDEV_TX_OK; - -fail: - dev_kfree_skb(skb); - return NETDEV_TX_OK; /* meaning, we dealt with the skb */ -} - -/** - * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type - * subinterfaces (wlan#, WDS, and VLAN interfaces) - * @skb: packet to be sent - * @dev: incoming interface - * - * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will - * not be freed, and caller is responsible for either retrying later or freeing - * skb). - * - * This function takes in an Ethernet header and encapsulates it with suitable - * IEEE 802.11 header based on which interface the packet is coming in. The - * encapsulated packet will then be passed to master interface, wlan#.11, for - * transmission (through low-level driver). - */ -int ieee80211_subif_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_tx_packet_data *pkt_data; - struct ieee80211_sub_if_data *sdata; - int ret = 1, head_need; - u16 ethertype, hdrlen, fc; - struct ieee80211_hdr hdr; - const u8 *encaps_data; - int encaps_len, skip_header_bytes; - int nh_pos, h_pos; - struct sta_info *sta; - u32 sta_flags = 0; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (unlikely(skb->len < ETH_HLEN)) { - printk(KERN_DEBUG "%s: short skb (len=%d)\n", - dev->name, skb->len); - ret = 0; - goto fail; - } - - nh_pos = skb_network_header(skb) - skb->data; - h_pos = skb_transport_header(skb) - skb->data; - - /* convert Ethernet header to proper 802.11 header (based on - * operation mode) */ - ethertype = (skb->data[12] << 8) | skb->data[13]; - fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA; - - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_AP: - case IEEE80211_IF_TYPE_VLAN: - fc |= IEEE80211_FCTL_FROMDS; - /* DA BSSID SA */ - memcpy(hdr.addr1, skb->data, ETH_ALEN); - memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN); - memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN); - hdrlen = 24; - break; - case IEEE80211_IF_TYPE_WDS: - fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS; - /* RA TA DA SA */ - memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN); - memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN); - memcpy(hdr.addr3, skb->data, ETH_ALEN); - memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN); - hdrlen = 30; - break; - case IEEE80211_IF_TYPE_STA: - fc |= IEEE80211_FCTL_TODS; - /* BSSID SA DA */ - memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN); - memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); - memcpy(hdr.addr3, skb->data, ETH_ALEN); - hdrlen = 24; - break; - case IEEE80211_IF_TYPE_IBSS: - /* DA SA BSSID */ - memcpy(hdr.addr1, skb->data, ETH_ALEN); - memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN); - memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN); - hdrlen = 24; - break; - default: - ret = 0; - goto fail; - } - - /* - * There's no need to try to look up the destination - * if it is a multicast address (which can only happen - * in AP mode) - */ - if (!is_multicast_ether_addr(hdr.addr1)) { - sta = sta_info_get(local, hdr.addr1); - if (sta) { - sta_flags = sta->flags; - sta_info_put(sta); - } - } - - /* receiver is QoS enabled, use a QoS type frame */ - if (sta_flags & WLAN_STA_WME) { - fc |= IEEE80211_STYPE_QOS_DATA; - hdrlen += 2; - } - - /* - * Drop unicast frames to unauthorised stations unless they are - * EAPOL frames from the local station. - */ - if (unlikely(!is_multicast_ether_addr(hdr.addr1) && - !(sta_flags & WLAN_STA_AUTHORIZED) && - !(ethertype == ETH_P_PAE && - compare_ether_addr(dev->dev_addr, - skb->data + ETH_ALEN) == 0))) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - DECLARE_MAC_BUF(mac); - - if (net_ratelimit()) - printk(KERN_DEBUG "%s: dropped frame to %s" - " (unauthorized port)\n", dev->name, - print_mac(mac, hdr.addr1)); -#endif - - I802_DEBUG_INC(local->tx_handlers_drop_unauth_port); - - ret = 0; - goto fail; - } - - hdr.frame_control = cpu_to_le16(fc); - hdr.duration_id = 0; - hdr.seq_ctrl = 0; - - skip_header_bytes = ETH_HLEN; - if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) { - encaps_data = bridge_tunnel_header; - encaps_len = sizeof(bridge_tunnel_header); - skip_header_bytes -= 2; - } else if (ethertype >= 0x600) { - encaps_data = rfc1042_header; - encaps_len = sizeof(rfc1042_header); - skip_header_bytes -= 2; - } else { - encaps_data = NULL; - encaps_len = 0; - } - - skb_pull(skb, skip_header_bytes); - nh_pos -= skip_header_bytes; - h_pos -= skip_header_bytes; - - /* TODO: implement support for fragments so that there is no need to - * reallocate and copy payload; it might be enough to support one - * extra fragment that would be copied in the beginning of the frame - * data.. anyway, it would be nice to include this into skb structure - * somehow - * - * There are few options for this: - * use skb->cb as an extra space for 802.11 header - * allocate new buffer if not enough headroom - * make sure that there is enough headroom in every skb by increasing - * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and - * alloc_skb() (net/core/skbuff.c) - */ - head_need = hdrlen + encaps_len + local->tx_headroom; - head_need -= skb_headroom(skb); - - /* We are going to modify skb data, so make a copy of it if happens to - * be cloned. This could happen, e.g., with Linux bridge code passing - * us broadcast frames. */ - - if (head_need > 0 || skb_cloned(skb)) { -#if 0 - printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes " - "of headroom\n", dev->name, head_need); -#endif - - if (skb_cloned(skb)) - I802_DEBUG_INC(local->tx_expand_skb_head_cloned); - else - I802_DEBUG_INC(local->tx_expand_skb_head); - /* Since we have to reallocate the buffer, make sure that there - * is enough room for possible WEP IV/ICV and TKIP (8 bytes - * before payload and 12 after). */ - if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8), - 12, GFP_ATOMIC)) { - printk(KERN_DEBUG "%s: failed to reallocate TX buffer" - "\n", dev->name); - goto fail; - } - } - - if (encaps_data) { - memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len); - nh_pos += encaps_len; - h_pos += encaps_len; - } - - if (fc & IEEE80211_STYPE_QOS_DATA) { - __le16 *qos_control; - - qos_control = (__le16*) skb_push(skb, 2); - memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2); - /* - * Maybe we could actually set some fields here, for now just - * initialise to zero to indicate no special operation. - */ - *qos_control = 0; - } else - memcpy(skb_push(skb, hdrlen), &hdr, hdrlen); - - nh_pos += hdrlen; - h_pos += hdrlen; - - pkt_data = (struct ieee80211_tx_packet_data *)skb->cb; - memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data)); - pkt_data->ifindex = dev->ifindex; - if (ethertype == ETH_P_PAE) - pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME; - - skb->dev = local->mdev; - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - - /* Update skb pointers to various headers since this modified frame - * is going to go through Linux networking code that may potentially - * need things like pointer to IP header. */ - skb_set_mac_header(skb, 0); - skb_set_network_header(skb, nh_pos); - skb_set_transport_header(skb, h_pos); - - dev->trans_start = jiffies; - dev_queue_xmit(skb); - - return 0; - - fail: - if (!ret) - dev_kfree_skb(skb); - - return ret; -} - -/* helper functions for pending packets for when queues are stopped */ - -void ieee80211_clear_tx_pending(struct ieee80211_local *local) -{ - int i, j; - struct ieee80211_tx_stored_packet *store; - - for (i = 0; i < local->hw.queues; i++) { - if (!__ieee80211_queue_pending(local, i)) - continue; - store = &local->pending_packet[i]; - kfree_skb(store->skb); - for (j = 0; j < store->num_extra_frag; j++) - kfree_skb(store->extra_frag[j]); - kfree(store->extra_frag); - clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]); - } -} - -void ieee80211_tx_pending(unsigned long data) -{ - struct ieee80211_local *local = (struct ieee80211_local *)data; - struct net_device *dev = local->mdev; - struct ieee80211_tx_stored_packet *store; - struct ieee80211_txrx_data tx; - int i, ret, reschedule = 0; - - netif_tx_lock_bh(dev); - for (i = 0; i < local->hw.queues; i++) { - if (__ieee80211_queue_stopped(local, i)) - continue; - if (!__ieee80211_queue_pending(local, i)) { - reschedule = 1; - continue; - } - store = &local->pending_packet[i]; - tx.u.tx.control = &store->control; - tx.u.tx.extra_frag = store->extra_frag; - tx.u.tx.num_extra_frag = store->num_extra_frag; - tx.u.tx.last_frag_rate = store->last_frag_rate; - tx.flags = 0; - if (store->last_frag_rate_ctrl_probe) - tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG; - ret = __ieee80211_tx(local, store->skb, &tx); - if (ret) { - if (ret == IEEE80211_TX_FRAG_AGAIN) - store->skb = NULL; - } else { - clear_bit(IEEE80211_LINK_STATE_PENDING, - &local->state[i]); - reschedule = 1; - } - } - netif_tx_unlock_bh(dev); - if (reschedule) { - if (!ieee80211_qdisc_installed(dev)) { - if (!__ieee80211_queue_stopped(local, 0)) - netif_wake_queue(dev); - } else - netif_schedule(dev); - } -} - -/* functions for drivers to get certain frames */ - -static void ieee80211_beacon_add_tim(struct ieee80211_local *local, - struct ieee80211_if_ap *bss, - struct sk_buff *skb, - struct beacon_data *beacon) -{ - u8 *pos, *tim; - int aid0 = 0; - int i, have_bits = 0, n1, n2; - - /* Generate bitmap for TIM only if there are any STAs in power save - * mode. */ - read_lock_bh(&local->sta_lock); - if (atomic_read(&bss->num_sta_ps) > 0) - /* in the hope that this is faster than - * checking byte-for-byte */ - have_bits = !bitmap_empty((unsigned long*)bss->tim, - IEEE80211_MAX_AID+1); - - if (bss->dtim_count == 0) - bss->dtim_count = beacon->dtim_period - 1; - else - bss->dtim_count--; - - tim = pos = (u8 *) skb_put(skb, 6); - *pos++ = WLAN_EID_TIM; - *pos++ = 4; - *pos++ = bss->dtim_count; - *pos++ = beacon->dtim_period; - - if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf)) - aid0 = 1; - - if (have_bits) { - /* Find largest even number N1 so that bits numbered 1 through - * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits - * (N2 + 1) x 8 through 2007 are 0. */ - n1 = 0; - for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) { - if (bss->tim[i]) { - n1 = i & 0xfe; - break; - } - } - n2 = n1; - for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) { - if (bss->tim[i]) { - n2 = i; - break; - } - } - - /* Bitmap control */ - *pos++ = n1 | aid0; - /* Part Virt Bitmap */ - memcpy(pos, bss->tim + n1, n2 - n1 + 1); - - tim[1] = n2 - n1 + 4; - skb_put(skb, n2 - n1); - } else { - *pos++ = aid0; /* Bitmap control */ - *pos++ = 0; /* Part Virt Bitmap */ - } - read_unlock_bh(&local->sta_lock); -} - -struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_tx_control *control) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sk_buff *skb; - struct net_device *bdev; - struct ieee80211_sub_if_data *sdata = NULL; - struct ieee80211_if_ap *ap = NULL; - struct rate_selection rsel; - struct beacon_data *beacon; - struct ieee80211_supported_band *sband; - - sband = local->hw.wiphy->bands[local->hw.conf.channel->band]; - - rcu_read_lock(); - - sdata = vif_to_sdata(vif); - bdev = sdata->dev; - ap = &sdata->u.ap; - - beacon = rcu_dereference(ap->beacon); - - if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) { -#ifdef CONFIG_MAC80211_VERBOSE_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "no beacon data avail for %s\n", - bdev->name); -#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ - skb = NULL; - goto out; - } - - /* headroom, head length, tail length and maximum TIM length */ - skb = dev_alloc_skb(local->tx_headroom + beacon->head_len + - beacon->tail_len + 256); - if (!skb) - goto out; - - skb_reserve(skb, local->tx_headroom); - memcpy(skb_put(skb, beacon->head_len), beacon->head, - beacon->head_len); - - ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data); - - ieee80211_beacon_add_tim(local, ap, skb, beacon); - - if (beacon->tail) - memcpy(skb_put(skb, beacon->tail_len), beacon->tail, - beacon->tail_len); - - if (control) { - rate_control_get_rate(local->mdev, sband, skb, &rsel); - if (!rsel.rate) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: ieee80211_beacon_get: " - "no rate found\n", - wiphy_name(local->hw.wiphy)); - } - dev_kfree_skb(skb); - skb = NULL; - goto out; - } - - control->vif = vif; - control->tx_rate = rsel.rate; - if (sdata->bss_conf.use_short_preamble && - rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) - control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE; - control->antenna_sel_tx = local->hw.conf.antenna_sel_tx; - control->flags |= IEEE80211_TXCTL_NO_ACK; - control->retry_limit = 1; - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - } - - ap->num_beacons++; - - out: - rcu_read_unlock(); - return skb; -} -EXPORT_SYMBOL(ieee80211_beacon_get); - -void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - const void *frame, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl, - struct ieee80211_rts *rts) -{ - const struct ieee80211_hdr *hdr = frame; - u16 fctl; - - fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS; - rts->frame_control = cpu_to_le16(fctl); - rts->duration = ieee80211_rts_duration(hw, vif, frame_len, - frame_txctl); - memcpy(rts->ra, hdr->addr1, sizeof(rts->ra)); - memcpy(rts->ta, hdr->addr2, sizeof(rts->ta)); -} -EXPORT_SYMBOL(ieee80211_rts_get); - -void ieee80211_ctstoself_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, - const void *frame, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl, - struct ieee80211_cts *cts) -{ - const struct ieee80211_hdr *hdr = frame; - u16 fctl; - - fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS; - cts->frame_control = cpu_to_le16(fctl); - cts->duration = ieee80211_ctstoself_duration(hw, vif, - frame_len, frame_txctl); - memcpy(cts->ra, hdr->addr1, sizeof(cts->ra)); -} -EXPORT_SYMBOL(ieee80211_ctstoself_get); - -struct sk_buff * -ieee80211_get_buffered_bc(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_tx_control *control) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct sk_buff *skb; - struct sta_info *sta; - ieee80211_tx_handler *handler; - struct ieee80211_txrx_data tx; - ieee80211_tx_result res = TX_DROP; - struct net_device *bdev; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_ap *bss = NULL; - struct beacon_data *beacon; - - sdata = vif_to_sdata(vif); - bdev = sdata->dev; - - - if (!bss) - return NULL; - - rcu_read_lock(); - beacon = rcu_dereference(bss->beacon); - - if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon || - !beacon->head) { - rcu_read_unlock(); - return NULL; - } - rcu_read_unlock(); - - if (bss->dtim_count != 0) - return NULL; /* send buffered bc/mc only after DTIM beacon */ - memset(control, 0, sizeof(*control)); - while (1) { - skb = skb_dequeue(&bss->ps_bc_buf); - if (!skb) - return NULL; - local->total_ps_buffered--; - - if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) { - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) skb->data; - /* more buffered multicast/broadcast frames ==> set - * MoreData flag in IEEE 802.11 header to inform PS - * STAs */ - hdr->frame_control |= - cpu_to_le16(IEEE80211_FCTL_MOREDATA); - } - - if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control)) - break; - dev_kfree_skb_any(skb); - } - sta = tx.sta; - tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED; - tx.u.tx.channel = local->hw.conf.channel; - - for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) { - res = (*handler)(&tx); - if (res == TX_DROP || res == TX_QUEUED) - break; - } - skb = tx.skb; /* handlers are allowed to change skb */ - - if (res == TX_DROP) { - I802_DEBUG_INC(local->tx_handlers_drop); - dev_kfree_skb(skb); - skb = NULL; - } else if (res == TX_QUEUED) { - I802_DEBUG_INC(local->tx_handlers_queued); - skb = NULL; - } - - if (sta) - sta_info_put(sta); - - return skb; -} -EXPORT_SYMBOL(ieee80211_get_buffered_bc); diff --git a/package/mac80211/src/net/mac80211/util.c b/package/mac80211/src/net/mac80211/util.c deleted file mode 100644 index f64804fed0..0000000000 --- a/package/mac80211/src/net/mac80211/util.c +++ /dev/null @@ -1,396 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * utilities for mac80211 - */ - -#include <net/mac80211.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/if_arp.h> -#include <linux/wireless.h> -#include <linux/bitmap.h> -#include <net/net_namespace.h> -#include <net/cfg80211.h> -#include <net/rtnetlink.h> - -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "wme.h" - -/* privid for wiphys to determine whether they belong to us or not */ -void *mac80211_wiphy_privid = &mac80211_wiphy_privid; - -/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ -/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ -const unsigned char rfc1042_header[] = - { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; - -/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ -const unsigned char bridge_tunnel_header[] = - { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; - - -u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, - enum ieee80211_if_types type) -{ - u16 fc; - - /* drop ACK/CTS frames and incorrect hdr len (ctrl) */ - if (len < 16) - return NULL; - - fc = le16_to_cpu(hdr->frame_control); - - switch (fc & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_DATA: - if (len < 24) /* drop incorrect hdr len (data) */ - return NULL; - switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { - case IEEE80211_FCTL_TODS: - return hdr->addr1; - case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS): - return NULL; - case IEEE80211_FCTL_FROMDS: - return hdr->addr2; - case 0: - return hdr->addr3; - } - break; - case IEEE80211_FTYPE_MGMT: - if (len < 24) /* drop incorrect hdr len (mgmt) */ - return NULL; - return hdr->addr3; - case IEEE80211_FTYPE_CTL: - if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL) - return hdr->addr1; - else if ((fc & IEEE80211_FCTL_STYPE) == - IEEE80211_STYPE_BACK_REQ) { - switch (type) { - case IEEE80211_IF_TYPE_STA: - return hdr->addr2; - case IEEE80211_IF_TYPE_AP: - case IEEE80211_IF_TYPE_VLAN: - return hdr->addr1; - default: - return NULL; - } - } - else - return NULL; - } - - return NULL; -} - -int ieee80211_get_hdrlen(u16 fc) -{ - int hdrlen = 24; - - switch (fc & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_DATA: - if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS)) - hdrlen = 30; /* Addr4 */ - /* - * The QoS Control field is two bytes and its presence is - * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to - * hdrlen if that bit is set. - * This works by masking out the bit and shifting it to - * bit position 1 so the result has the value 0 or 2. - */ - hdrlen += (fc & IEEE80211_STYPE_QOS_DATA) - >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1); - break; - case IEEE80211_FTYPE_CTL: - /* - * ACK and CTS are 10 bytes, all others 16. To see how - * to get this condition consider - * subtype mask: 0b0000000011110000 (0x00F0) - * ACK subtype: 0b0000000011010000 (0x00D0) - * CTS subtype: 0b0000000011000000 (0x00C0) - * bits that matter: ^^^ (0x00E0) - * value of those: 0b0000000011000000 (0x00C0) - */ - if ((fc & 0xE0) == 0xC0) - hdrlen = 10; - else - hdrlen = 16; - break; - } - - return hdrlen; -} -EXPORT_SYMBOL(ieee80211_get_hdrlen); - -int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb) -{ - const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data; - int hdrlen; - - if (unlikely(skb->len < 10)) - return 0; - hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)); - if (unlikely(hdrlen > skb->len)) - return 0; - return hdrlen; -} -EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb); - -void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - if (tx->u.tx.extra_frag) { - struct ieee80211_hdr *fhdr; - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - fhdr = (struct ieee80211_hdr *) - tx->u.tx.extra_frag[i]->data; - fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - } - } -} - -int ieee80211_frame_duration(struct ieee80211_local *local, size_t len, - int rate, int erp, int short_preamble) -{ - int dur; - - /* calculate duration (in microseconds, rounded up to next higher - * integer if it includes a fractional microsecond) to send frame of - * len bytes (does not include FCS) at the given rate. Duration will - * also include SIFS. - * - * rate is in 100 kbps, so divident is multiplied by 10 in the - * DIV_ROUND_UP() operations. - */ - - if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ || erp) { - /* - * OFDM: - * - * N_DBPS = DATARATE x 4 - * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) - * (16 = SIGNAL time, 6 = tail bits) - * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext - * - * T_SYM = 4 usec - * 802.11a - 17.5.2: aSIFSTime = 16 usec - * 802.11g - 19.8.4: aSIFSTime = 10 usec + - * signal ext = 6 usec - */ - dur = 16; /* SIFS + signal ext */ - dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */ - dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */ - dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, - 4 * rate); /* T_SYM x N_SYM */ - } else { - /* - * 802.11b or 802.11g with 802.11b compatibility: - * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + - * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. - * - * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 - * aSIFSTime = 10 usec - * aPreambleLength = 144 usec or 72 usec with short preamble - * aPLCPHeaderLength = 48 usec or 24 usec with short preamble - */ - dur = 10; /* aSIFSTime = 10 usec */ - dur += short_preamble ? (72 + 24) : (144 + 48); - - dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); - } - - return dur; -} - -/* Exported duration function for driver use */ -__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - size_t frame_len, - struct ieee80211_rate *rate) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - u16 dur; - int erp; - - erp = 0; - if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = rate->flags & IEEE80211_RATE_ERP_G; - - dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, erp, - sdata->bss_conf.use_short_preamble); - - return cpu_to_le16(dur); -} -EXPORT_SYMBOL(ieee80211_generic_frame_duration); - -__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, size_t frame_len, - const struct ieee80211_tx_control *frame_txctl) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_rate *rate; - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - bool short_preamble; - int erp; - u16 dur; - - short_preamble = sdata->bss_conf.use_short_preamble; - - rate = frame_txctl->rts_cts_rate; - - erp = 0; - if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = rate->flags & IEEE80211_RATE_ERP_G; - - /* CTS duration */ - dur = ieee80211_frame_duration(local, 10, rate->bitrate, - erp, short_preamble); - /* Data frame duration */ - dur += ieee80211_frame_duration(local, frame_len, rate->bitrate, - erp, short_preamble); - /* ACK duration */ - dur += ieee80211_frame_duration(local, 10, rate->bitrate, - erp, short_preamble); - - return cpu_to_le16(dur); -} -EXPORT_SYMBOL(ieee80211_rts_duration); - -__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - size_t frame_len, - const struct ieee80211_tx_control *frame_txctl) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_rate *rate; - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - bool short_preamble; - int erp; - u16 dur; - - short_preamble = sdata->bss_conf.use_short_preamble; - - rate = frame_txctl->rts_cts_rate; - erp = 0; - if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) - erp = rate->flags & IEEE80211_RATE_ERP_G; - - /* Data frame duration */ - dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, - erp, short_preamble); - if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) { - /* ACK duration */ - dur += ieee80211_frame_duration(local, 10, rate->bitrate, - erp, short_preamble); - } - - return cpu_to_le16(dur); -} -EXPORT_SYMBOL(ieee80211_ctstoself_duration); - -void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF, - &local->state[queue])) { - if (test_bit(IEEE80211_LINK_STATE_PENDING, - &local->state[queue])) - tasklet_schedule(&local->tx_pending_tasklet); - else - if (!ieee80211_qdisc_installed(local->mdev)) { - if (queue == 0) - netif_wake_queue(local->mdev); - } else - __netif_schedule(local->mdev); - } -} -EXPORT_SYMBOL(ieee80211_wake_queue); - -void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) -{ - struct ieee80211_local *local = hw_to_local(hw); - - if (!ieee80211_qdisc_installed(local->mdev) && queue == 0) - netif_stop_queue(local->mdev); - set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]); -} -EXPORT_SYMBOL(ieee80211_stop_queue); - -void ieee80211_start_queues(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - int i; - - for (i = 0; i < local->hw.queues; i++) - clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]); - if (!ieee80211_qdisc_installed(local->mdev)) - netif_start_queue(local->mdev); -} -EXPORT_SYMBOL(ieee80211_start_queues); - -void ieee80211_stop_queues(struct ieee80211_hw *hw) -{ - int i; - - for (i = 0; i < hw->queues; i++) - ieee80211_stop_queue(hw, i); -} -EXPORT_SYMBOL(ieee80211_stop_queues); - -void ieee80211_wake_queues(struct ieee80211_hw *hw) -{ - int i; - - for (i = 0; i < hw->queues; i++) - ieee80211_wake_queue(hw, i); -} -EXPORT_SYMBOL(ieee80211_wake_queues); - -void ieee80211_iterate_active_interfaces( - struct ieee80211_hw *hw, - void (*iterator)(void *data, u8 *mac, - struct ieee80211_vif *vif), - void *data) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata; - - rcu_read_lock(); - - list_for_each_entry_rcu(sdata, &local->interfaces, list) { - switch (sdata->vif.type) { - case IEEE80211_IF_TYPE_INVALID: - case IEEE80211_IF_TYPE_MNTR: - case IEEE80211_IF_TYPE_VLAN: - continue; - case IEEE80211_IF_TYPE_AP: - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - case IEEE80211_IF_TYPE_WDS: - break; - } - if (sdata->dev == local->mdev) - continue; - if (netif_running(sdata->dev)) - iterator(data, sdata->dev->dev_addr, - &sdata->vif); - } - - rcu_read_unlock(); -} -EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces); diff --git a/package/mac80211/src/net/mac80211/wep.c b/package/mac80211/src/net/mac80211/wep.c deleted file mode 100644 index a33ef5cfa9..0000000000 --- a/package/mac80211/src/net/mac80211/wep.c +++ /dev/null @@ -1,373 +0,0 @@ -/* - * Software WEP encryption implementation - * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi> - * Copyright 2003, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/random.h> -#include <linux/compiler.h> -#include <linux/crc32.h> -#include <linux/crypto.h> -#include <linux/err.h> -#include <linux/mm.h> -#include <linux/scatterlist.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "wep.h" - - -int ieee80211_wep_init(struct ieee80211_local *local) -{ - /* start WEP IV from a random value */ - get_random_bytes(&local->wep_iv, WEP_IV_LEN); - - local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(local->wep_tx_tfm)) - return -ENOMEM; - - local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, - CRYPTO_ALG_ASYNC); - if (IS_ERR(local->wep_rx_tfm)) { - crypto_free_blkcipher(local->wep_tx_tfm); - return -ENOMEM; - } - - return 0; -} - -void ieee80211_wep_free(struct ieee80211_local *local) -{ - crypto_free_blkcipher(local->wep_tx_tfm); - crypto_free_blkcipher(local->wep_rx_tfm); -} - -static inline int ieee80211_wep_weak_iv(u32 iv, int keylen) -{ - /* Fluhrer, Mantin, and Shamir have reported weaknesses in the - * key scheduling algorithm of RC4. At least IVs (KeyByte + 3, - * 0xff, N) can be used to speedup attacks, so avoid using them. */ - if ((iv & 0xff00) == 0xff00) { - u8 B = (iv >> 16) & 0xff; - if (B >= 3 && B < 3 + keylen) - return 1; - } - return 0; -} - - -static void ieee80211_wep_get_iv(struct ieee80211_local *local, - struct ieee80211_key *key, u8 *iv) -{ - local->wep_iv++; - if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen)) - local->wep_iv += 0x0100; - - if (!iv) - return; - - *iv++ = (local->wep_iv >> 16) & 0xff; - *iv++ = (local->wep_iv >> 8) & 0xff; - *iv++ = local->wep_iv & 0xff; - *iv++ = key->conf.keyidx << 6; -} - - -static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - u8 *newhdr; - - fc = le16_to_cpu(hdr->frame_control); - fc |= IEEE80211_FCTL_PROTECTED; - hdr->frame_control = cpu_to_le16(fc); - - if ((skb_headroom(skb) < WEP_IV_LEN || - skb_tailroom(skb) < WEP_ICV_LEN)) { - I802_DEBUG_INC(local->tx_expand_skb_head); - if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN, - GFP_ATOMIC))) - return NULL; - } - - hdrlen = ieee80211_get_hdrlen(fc); - newhdr = skb_push(skb, WEP_IV_LEN); - memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen); - ieee80211_wep_get_iv(local, key, newhdr + hdrlen); - return newhdr + hdrlen; -} - - -static void ieee80211_wep_remove_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen); - skb_pull(skb, WEP_IV_LEN); -} - - -/* Perform WEP encryption using given key. data buffer must have tailroom - * for 4-byte ICV. data_len must not include this ICV. Note: this function - * does _not_ add IV. data = RC4(data | CRC32(data)) */ -void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, - size_t klen, u8 *data, size_t data_len) -{ - struct blkcipher_desc desc = { .tfm = tfm }; - struct scatterlist sg; - __le32 *icv; - - icv = (__le32 *)(data + data_len); - *icv = cpu_to_le32(~crc32_le(~0, data, data_len)); - - crypto_blkcipher_setkey(tfm, rc4key, klen); - sg_init_one(&sg, data, data_len + WEP_ICV_LEN); - crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length); -} - - -/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the - * beginning of the buffer 4 bytes of extra space (ICV) in the end of the - * buffer will be added. Both IV and ICV will be transmitted, so the - * payload length increases with 8 bytes. - * - * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data)) - */ -int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key) -{ - u32 klen; - u8 *rc4key, *iv; - size_t len; - - if (!key || key->conf.alg != ALG_WEP) - return -1; - - klen = 3 + key->conf.keylen; - rc4key = kmalloc(klen, GFP_ATOMIC); - if (!rc4key) - return -1; - - iv = ieee80211_wep_add_iv(local, skb, key); - if (!iv) { - kfree(rc4key); - return -1; - } - - len = skb->len - (iv + WEP_IV_LEN - skb->data); - - /* Prepend 24-bit IV to RC4 key */ - memcpy(rc4key, iv, 3); - - /* Copy rest of the WEP key (the secret part) */ - memcpy(rc4key + 3, key->conf.key, key->conf.keylen); - - /* Add room for ICV */ - skb_put(skb, WEP_ICV_LEN); - - ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen, - iv + WEP_IV_LEN, len); - - kfree(rc4key); - - return 0; -} - - -/* Perform WEP decryption using given key. data buffer includes encrypted - * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV. - * Return 0 on success and -1 on ICV mismatch. */ -int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, - size_t klen, u8 *data, size_t data_len) -{ - struct blkcipher_desc desc = { .tfm = tfm }; - struct scatterlist sg; - __le32 crc; - - crypto_blkcipher_setkey(tfm, rc4key, klen); - sg_init_one(&sg, data, data_len + WEP_ICV_LEN); - crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length); - - crc = cpu_to_le32(~crc32_le(~0, data, data_len)); - if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0) - /* ICV mismatch */ - return -1; - - return 0; -} - - -/* Perform WEP decryption on given skb. Buffer includes whole WEP part of - * the frame: IV (4 bytes), encrypted payload (including SNAP header), - * ICV (4 bytes). skb->len includes both IV and ICV. - * - * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on - * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload - * is moved to the beginning of the skb and skb length will be reduced. - */ -int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key) -{ - u32 klen; - u8 *rc4key; - u8 keyidx; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - size_t len; - int ret = 0; - - fc = le16_to_cpu(hdr->frame_control); - if (!(fc & IEEE80211_FCTL_PROTECTED)) - return -1; - - hdrlen = ieee80211_get_hdrlen(fc); - - if (skb->len < 8 + hdrlen) - return -1; - - len = skb->len - hdrlen - 8; - - keyidx = skb->data[hdrlen + 3] >> 6; - - if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP) - return -1; - - klen = 3 + key->conf.keylen; - - rc4key = kmalloc(klen, GFP_ATOMIC); - if (!rc4key) - return -1; - - /* Prepend 24-bit IV to RC4 key */ - memcpy(rc4key, skb->data + hdrlen, 3); - - /* Copy rest of the WEP key (the secret part) */ - memcpy(rc4key + 3, key->conf.key, key->conf.keylen); - - if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen, - skb->data + hdrlen + WEP_IV_LEN, - len)) { - if (net_ratelimit()) - printk(KERN_DEBUG "WEP decrypt failed (ICV)\n"); - ret = -1; - } - - kfree(rc4key); - - /* Trim ICV */ - skb_trim(skb, skb->len - WEP_ICV_LEN); - - /* Remove IV */ - memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen); - skb_pull(skb, WEP_IV_LEN); - - return ret; -} - - -u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - u8 *ivpos; - u32 iv; - - fc = le16_to_cpu(hdr->frame_control); - if (!(fc & IEEE80211_FCTL_PROTECTED)) - return NULL; - - hdrlen = ieee80211_get_hdrlen(fc); - ivpos = skb->data + hdrlen; - iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2]; - - if (ieee80211_wep_weak_iv(iv, key->conf.keylen)) - return ivpos; - - return NULL; -} - -ieee80211_rx_result -ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx) -{ - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA && - ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) - return RX_CONTINUE; - - if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) { - if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) { -#ifdef CONFIG_MAC80211_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "%s: RX WEP frame, decrypt " - "failed\n", rx->dev->name); -#endif /* CONFIG_MAC80211_DEBUG */ - return RX_DROP_UNUSABLE; - } - } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) { - ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); - /* remove ICV */ - skb_trim(rx->skb, rx->skb->len - 4); - } - - return RX_CONTINUE; -} - -static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb) -{ - if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { - if (ieee80211_wep_encrypt(tx->local, skb, tx->key)) - return -1; - } else { - tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; - if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) { - if (!ieee80211_wep_add_iv(tx->local, skb, tx->key)) - return -1; - } - } - return 0; -} - -ieee80211_tx_result -ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx) -{ - tx->u.tx.control->iv_len = WEP_IV_LEN; - tx->u.tx.control->icv_len = WEP_ICV_LEN; - ieee80211_tx_set_iswep(tx); - - if (wep_encrypt_skb(tx, tx->skb) < 0) { - I802_DEBUG_INC(tx->local->tx_handlers_drop_wep); - return TX_DROP; - } - - if (tx->u.tx.extra_frag) { - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) { - I802_DEBUG_INC(tx->local-> - tx_handlers_drop_wep); - return TX_DROP; - } - } - } - - return TX_CONTINUE; -} diff --git a/package/mac80211/src/net/mac80211/wep.h b/package/mac80211/src/net/mac80211/wep.h deleted file mode 100644 index 43aef50cd0..0000000000 --- a/package/mac80211/src/net/mac80211/wep.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Software WEP encryption implementation - * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi> - * Copyright 2003, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef WEP_H -#define WEP_H - -#include <linux/skbuff.h> -#include <linux/types.h> -#include "ieee80211_i.h" -#include "ieee80211_key.h" - -int ieee80211_wep_init(struct ieee80211_local *local); -void ieee80211_wep_free(struct ieee80211_local *local); -void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, - size_t klen, u8 *data, size_t data_len); -int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, - size_t klen, u8 *data, size_t data_len); -int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key); -int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_key *key); -u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key); - -ieee80211_rx_result -ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx); -ieee80211_tx_result -ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx); - -#endif /* WEP_H */ diff --git a/package/mac80211/src/net/mac80211/wme.c b/package/mac80211/src/net/mac80211/wme.c deleted file mode 100644 index 7bbc79371d..0000000000 --- a/package/mac80211/src/net/mac80211/wme.c +++ /dev/null @@ -1,722 +0,0 @@ -/* - * Copyright 2004, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/module.h> -#include <linux/if_arp.h> -#include <linux/types.h> -#include <net/ip.h> -#include <net/pkt_sched.h> - -#include <net/mac80211.h> -#include "ieee80211_i.h" -#include "wme.h" - -/* maximum number of hardware queues we support. */ -#define TC_80211_MAX_QUEUES 16 - -const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 }; - -struct ieee80211_sched_data -{ - unsigned long qdisc_pool; - struct tcf_proto *filter_list; - struct Qdisc *queues[TC_80211_MAX_QUEUES]; - struct sk_buff_head requeued[TC_80211_MAX_QUEUES]; -}; - -static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0}; - -/* given a data frame determine the 802.1p/1d tag to use */ -static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd) -{ - struct iphdr *ip; - int dscp; - int offset; - - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct tcf_result res = { -1, 0 }; - - /* if there is a user set filter list, call out to that */ - if (q->filter_list) { - tc_classify(skb, q->filter_list, &res); - if (res.class != -1) - return res.class; - } - - /* skb->priority values from 256->263 are magic values to - * directly indicate a specific 802.1d priority. - * This is used to allow 802.1d priority to be passed directly in - * from VLAN tags, etc. */ - if (skb->priority >= 256 && skb->priority <= 263) - return skb->priority - 256; - - /* check there is a valid IP header present */ - offset = ieee80211_get_hdrlen_from_skb(skb); - if (skb->len < offset + sizeof(llc_ip_hdr) + sizeof(*ip) || - memcmp(skb->data + offset, llc_ip_hdr, sizeof(llc_ip_hdr))) - return 0; - - ip = (struct iphdr *) (skb->data + offset + sizeof(llc_ip_hdr)); - - dscp = ip->tos & 0xfc; - if (dscp & 0x1c) - return 0; - return dscp >> 5; -} - - -static inline int wme_downgrade_ac(struct sk_buff *skb) -{ - switch (skb->priority) { - case 6: - case 7: - skb->priority = 5; /* VO -> VI */ - return 0; - case 4: - case 5: - skb->priority = 3; /* VI -> BE */ - return 0; - case 0: - case 3: - skb->priority = 2; /* BE -> BK */ - return 0; - default: - return -1; - } -} - - -/* positive return value indicates which queue to use - * negative return value indicates to drop the frame */ -static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd) -{ - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - unsigned short fc = le16_to_cpu(hdr->frame_control); - int qos; - - /* see if frame is data or non data frame */ - if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) { - /* management frames go on AC_VO queue, but are sent - * without QoS control fields */ - return IEEE80211_TX_QUEUE_DATA0; - } - - if (0 /* injected */) { - /* use AC from radiotap */ - } - - /* is this a QoS frame? */ - qos = fc & IEEE80211_STYPE_QOS_DATA; - - if (!qos) { - skb->priority = 0; /* required for correct WPA/11i MIC */ - return ieee802_1d_to_ac[skb->priority]; - } - - /* use the data classifier to determine what 802.1d tag the - * data frame has */ - skb->priority = classify_1d(skb, qd); - - /* in case we are a client verify acm is not set for this ac */ - while (unlikely(local->wmm_acm & BIT(skb->priority))) { - if (wme_downgrade_ac(skb)) { - /* No AC with lower priority has acm=0, drop packet. */ - return -1; - } - } - - /* look up which queue to use for frames with this 1d tag */ - return ieee802_1d_to_ac[skb->priority]; -} - - -static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd) -{ - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_tx_packet_data *pkt_data = - (struct ieee80211_tx_packet_data *) skb->cb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - unsigned short fc = le16_to_cpu(hdr->frame_control); - struct Qdisc *qdisc; - int err, queue; - struct sta_info *sta; - u8 tid; - - if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) { - queue = pkt_data->queue; - sta = sta_info_get(local, hdr->addr1); - tid = skb->priority & QOS_CONTROL_TAG1D_MASK; - if (sta) { - int ampdu_queue = sta->tid_to_tx_q[tid]; - if ((ampdu_queue < local->hw.queues) && - test_bit(ampdu_queue, &q->qdisc_pool)) { - queue = ampdu_queue; - pkt_data->flags |= IEEE80211_TXPD_AMPDU; - } else { - pkt_data->flags &= ~IEEE80211_TXPD_AMPDU; - } - sta_info_put(sta); - } - skb_queue_tail(&q->requeued[queue], skb); - qd->q.qlen++; - return 0; - } - - queue = classify80211(skb, qd); - - /* now we know the 1d priority, fill in the QoS header if there is one - */ - if (WLAN_FC_IS_QOS_DATA(fc)) { - u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2; - u8 ack_policy = 0; - tid = skb->priority & QOS_CONTROL_TAG1D_MASK; - if (local->wifi_wme_noack_test) - ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK << - QOS_CONTROL_ACK_POLICY_SHIFT; - /* qos header is 2 bytes, second reserved */ - *p = ack_policy | tid; - p++; - *p = 0; - - sta = sta_info_get(local, hdr->addr1); - if (sta) { - int ampdu_queue = sta->tid_to_tx_q[tid]; - if ((ampdu_queue < local->hw.queues) && - test_bit(ampdu_queue, &q->qdisc_pool)) { - queue = ampdu_queue; - pkt_data->flags |= IEEE80211_TXPD_AMPDU; - } else { - pkt_data->flags &= ~IEEE80211_TXPD_AMPDU; - } - sta_info_put(sta); - } - } - - if (unlikely(queue >= local->hw.queues)) { -#if 0 - if (net_ratelimit()) { - printk(KERN_DEBUG "%s - queue=%d (hw does not " - "support) -> %d\n", - __func__, queue, local->hw.queues - 1); - } -#endif - queue = local->hw.queues - 1; - } - - if (unlikely(queue < 0)) { - kfree_skb(skb); - err = NET_XMIT_DROP; - } else { - tid = skb->priority & QOS_CONTROL_TAG1D_MASK; - pkt_data->queue = (unsigned int) queue; - qdisc = q->queues[queue]; - err = qdisc->enqueue(skb, qdisc); - if (err == NET_XMIT_SUCCESS) { - qd->q.qlen++; - qd->bstats.bytes += skb->len; - qd->bstats.packets++; - return NET_XMIT_SUCCESS; - } - } - qd->qstats.drops++; - return err; -} - - -/* TODO: clean up the cases where master_hard_start_xmit - * returns non 0 - it shouldn't ever do that. Once done we - * can remove this function */ -static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_tx_packet_data *pkt_data = - (struct ieee80211_tx_packet_data *) skb->cb; - struct Qdisc *qdisc; - int err; - - /* we recorded which queue to use earlier! */ - qdisc = q->queues[pkt_data->queue]; - - if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) { - qd->q.qlen++; - return 0; - } - qd->qstats.drops++; - return err; -} - - -static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct net_device *dev = qd->dev; - struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - struct sk_buff *skb; - struct Qdisc *qdisc; - int queue; - - /* check all the h/w queues in numeric/priority order */ - for (queue = 0; queue < hw->queues; queue++) { - /* see if there is room in this hardware queue */ - if ((test_bit(IEEE80211_LINK_STATE_XOFF, - &local->state[queue])) || - (test_bit(IEEE80211_LINK_STATE_PENDING, - &local->state[queue])) || - (!test_bit(queue, &q->qdisc_pool))) - continue; - - /* there is space - try and get a frame */ - skb = skb_dequeue(&q->requeued[queue]); - if (skb) { - qd->q.qlen--; - return skb; - } - - qdisc = q->queues[queue]; - skb = qdisc->dequeue(qdisc); - if (skb) { - qd->q.qlen--; - return skb; - } - } - /* returning a NULL here when all the h/w queues are full means we - * never need to call netif_stop_queue in the driver */ - return NULL; -} - - -static void wme_qdiscop_reset(struct Qdisc* qd) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - int queue; - - /* QUESTION: should we have some hardware flush functionality here? */ - - for (queue = 0; queue < hw->queues; queue++) { - skb_queue_purge(&q->requeued[queue]); - qdisc_reset(q->queues[queue]); - } - qd->q.qlen = 0; -} - - -static void wme_qdiscop_destroy(struct Qdisc* qd) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - int queue; - - tcf_destroy_chain(q->filter_list); - q->filter_list = NULL; - - for (queue=0; queue < hw->queues; queue++) { - skb_queue_purge(&q->requeued[queue]); - qdisc_destroy(q->queues[queue]); - q->queues[queue] = &noop_qdisc; - } -} - - -/* called whenever parameters are updated on existing qdisc */ -static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt) -{ -/* struct ieee80211_sched_data *q = qdisc_priv(qd); -*/ - /* check our options block is the right size */ - /* copy any options to our local structure */ -/* Ignore options block for now - always use static mapping - struct tc_ieee80211_qopt *qopt = RTA_DATA(opt); - - if (opt->rta_len < RTA_LENGTH(sizeof(*qopt))) - return -EINVAL; - memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue)); -*/ - return 0; -} - - -/* called during initial creation of qdisc on device */ -static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct net_device *dev = qd->dev; - struct ieee80211_local *local; - int queues; - int err = 0, i; - - /* check that device is a mac80211 device */ - if (!dev->ieee80211_ptr || - dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid) - return -EINVAL; - - /* check this device is an ieee80211 master type device */ - if (dev->type != ARPHRD_IEEE80211) - return -EINVAL; - - /* check that there is no qdisc currently attached to device - * this ensures that we will be the root qdisc. (I can't find a better - * way to test this explicitly) */ - if (dev->qdisc_sleeping != &noop_qdisc) - return -EINVAL; - - if (qd->flags & TCQ_F_INGRESS) - return -EINVAL; - - local = wdev_priv(dev->ieee80211_ptr); - queues = local->hw.queues; - - /* if options were passed in, set them */ - if (opt) { - err = wme_qdiscop_tune(qd, opt); - } - - /* create child queues */ - for (i = 0; i < queues; i++) { - skb_queue_head_init(&q->requeued[i]); - q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops, - qd->handle); - if (!q->queues[i]) { - q->queues[i] = &noop_qdisc; - printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i); - } - } - - /* reserve all legacy QoS queues */ - for (i = 0; i < min(IEEE80211_TX_QUEUE_DATA4, queues); i++) - set_bit(i, &q->qdisc_pool); - - return err; -} - -static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb) -{ -/* struct ieee80211_sched_data *q = qdisc_priv(qd); - unsigned char *p = skb->tail; - struct tc_ieee80211_qopt opt; - - memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1); - RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt); -*/ return skb->len; -/* -rtattr_failure: - skb_trim(skb, p - skb->data);*/ - return -1; -} - - -static int wme_classop_graft(struct Qdisc *qd, unsigned long arg, - struct Qdisc *new, struct Qdisc **old) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - unsigned long queue = arg - 1; - - if (queue >= hw->queues) - return -EINVAL; - - if (!new) - new = &noop_qdisc; - - sch_tree_lock(qd); - *old = q->queues[queue]; - q->queues[queue] = new; - qdisc_reset(*old); - sch_tree_unlock(qd); - - return 0; -} - - -static struct Qdisc * -wme_classop_leaf(struct Qdisc *qd, unsigned long arg) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - unsigned long queue = arg - 1; - - if (queue >= hw->queues) - return NULL; - - return q->queues[queue]; -} - - -static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid) -{ - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - unsigned long queue = TC_H_MIN(classid); - - if (queue - 1 >= hw->queues) - return 0; - - return queue; -} - - -static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent, - u32 classid) -{ - return wme_classop_get(qd, classid); -} - - -static void wme_classop_put(struct Qdisc *q, unsigned long cl) -{ -} - - -static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent, - struct rtattr **tca, unsigned long *arg) -{ - unsigned long cl = *arg; - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - - if (cl - 1 > hw->queues) - return -ENOENT; - - /* TODO: put code to program hardware queue parameters here, - * to allow programming from tc command line */ - - return 0; -} - - -/* we don't support deleting hardware queues - * when we add WMM-SA support - TSPECs may be deleted here */ -static int wme_classop_delete(struct Qdisc *qd, unsigned long cl) -{ - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - - if (cl - 1 > hw->queues) - return -ENOENT; - return 0; -} - - -static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl, - struct sk_buff *skb, struct tcmsg *tcm) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - - if (cl - 1 > hw->queues) - return -ENOENT; - tcm->tcm_handle = TC_H_MIN(cl); - tcm->tcm_parent = qd->handle; - tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */ - return 0; -} - - -static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg) -{ - struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr); - struct ieee80211_hw *hw = &local->hw; - int queue; - - if (arg->stop) - return; - - for (queue = 0; queue < hw->queues; queue++) { - if (arg->count < arg->skip) { - arg->count++; - continue; - } - /* we should return classids for our internal queues here - * as well as the external ones */ - if (arg->fn(qd, queue+1, arg) < 0) { - arg->stop = 1; - break; - } - arg->count++; - } -} - - -static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd, - unsigned long cl) -{ - struct ieee80211_sched_data *q = qdisc_priv(qd); - - if (cl) - return NULL; - - return &q->filter_list; -} - - -/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached) - * - these are the operations on the classes */ -static struct Qdisc_class_ops class_ops = -{ - .graft = wme_classop_graft, - .leaf = wme_classop_leaf, - - .get = wme_classop_get, - .put = wme_classop_put, - .change = wme_classop_change, - .delete = wme_classop_delete, - .walk = wme_classop_walk, - - .tcf_chain = wme_classop_find_tcf, - .bind_tcf = wme_classop_bind, - .unbind_tcf = wme_classop_put, - - .dump = wme_classop_dump_class, -}; - - -/* queueing discipline operations */ -static struct Qdisc_ops wme_qdisc_ops = -{ - .next = NULL, - .cl_ops = &class_ops, - .id = "ieee80211", - .priv_size = sizeof(struct ieee80211_sched_data), - - .enqueue = wme_qdiscop_enqueue, - .dequeue = wme_qdiscop_dequeue, - .requeue = wme_qdiscop_requeue, - .drop = NULL, /* drop not needed since we are always the root qdisc */ - - .init = wme_qdiscop_init, - .reset = wme_qdiscop_reset, - .destroy = wme_qdiscop_destroy, - .change = wme_qdiscop_tune, - - .dump = wme_qdiscop_dump, -}; - - -void ieee80211_install_qdisc(struct net_device *dev) -{ - struct Qdisc *qdisc; - - qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT); - if (!qdisc) { - printk(KERN_ERR "%s: qdisc installation failed\n", dev->name); - return; - } - - /* same handle as would be allocated by qdisc_alloc_handle() */ - qdisc->handle = 0x80010000; - - qdisc_lock_tree(dev); - list_add_tail(&qdisc->list, &dev->qdisc_list); - dev->qdisc_sleeping = qdisc; - qdisc_unlock_tree(dev); -} - - -int ieee80211_qdisc_installed(struct net_device *dev) -{ - return dev->qdisc_sleeping->ops == &wme_qdisc_ops; -} - - -int ieee80211_wme_register(void) -{ - return register_qdisc(&wme_qdisc_ops); -} - - -void ieee80211_wme_unregister(void) -{ - unregister_qdisc(&wme_qdisc_ops); -} - -int ieee80211_ht_agg_queue_add(struct ieee80211_local *local, - struct sta_info *sta, u16 tid) -{ - int i; - struct ieee80211_sched_data *q = - qdisc_priv(local->mdev->qdisc_sleeping); - DECLARE_MAC_BUF(mac); - - /* prepare the filter and save it for the SW queue - * matching the recieved HW queue */ - - /* try to get a Qdisc from the pool */ - for (i = IEEE80211_TX_QUEUE_BEACON; i < local->hw.queues; i++) - if (!test_and_set_bit(i, &q->qdisc_pool)) { - ieee80211_stop_queue(local_to_hw(local), i); - sta->tid_to_tx_q[tid] = i; - - /* IF there are already pending packets - * on this tid first we need to drain them - * on the previous queue - * since HT is strict in order */ -#ifdef CONFIG_MAC80211_HT_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "allocated aggregation queue" - " %d tid %d addr %s pool=0x%lX\n", - i, tid, print_mac(mac, sta->addr), - q->qdisc_pool); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - return 0; - } - - return -EAGAIN; -} - -/** - * the caller needs to hold local->mdev->queue_lock - */ -void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local, - struct sta_info *sta, u16 tid, - u8 requeue) -{ - struct ieee80211_sched_data *q = - qdisc_priv(local->mdev->qdisc_sleeping); - int agg_queue = sta->tid_to_tx_q[tid]; - - /* return the qdisc to the pool */ - clear_bit(agg_queue, &q->qdisc_pool); - sta->tid_to_tx_q[tid] = local->hw.queues; - - if (requeue) - ieee80211_requeue(local, agg_queue); - else - q->queues[agg_queue]->ops->reset(q->queues[agg_queue]); -} - -void ieee80211_requeue(struct ieee80211_local *local, int queue) -{ - struct Qdisc *root_qd = local->mdev->qdisc_sleeping; - struct ieee80211_sched_data *q = qdisc_priv(root_qd); - struct Qdisc *qdisc = q->queues[queue]; - struct sk_buff *skb = NULL; - u32 len = qdisc->q.qlen; - - if (!qdisc || !qdisc->dequeue) - return; - - printk(KERN_DEBUG "requeue: qlen = %d\n", qdisc->q.qlen); - for (len = qdisc->q.qlen; len > 0; len--) { - skb = qdisc->dequeue(qdisc); - root_qd->q.qlen--; - /* packet will be classified again and */ - /* skb->packet_data->queue will be overridden if needed */ - if (skb) - wme_qdiscop_enqueue(skb, root_qd); - } -} diff --git a/package/mac80211/src/net/mac80211/wme.h b/package/mac80211/src/net/mac80211/wme.h deleted file mode 100644 index fcc6b05508..0000000000 --- a/package/mac80211/src/net/mac80211/wme.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * IEEE 802.11 driver (80211.o) - QoS datatypes - * Copyright 2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef _WME_H -#define _WME_H - -#include <linux/netdevice.h> -#include "ieee80211_i.h" - -#define QOS_CONTROL_LEN 2 - -#define QOS_CONTROL_ACK_POLICY_NORMAL 0 -#define QOS_CONTROL_ACK_POLICY_NOACK 1 - -#define QOS_CONTROL_TID_MASK 0x0f -#define QOS_CONTROL_ACK_POLICY_SHIFT 5 - -#define QOS_CONTROL_TAG1D_MASK 0x07 - -extern const int ieee802_1d_to_ac[8]; - -static inline int WLAN_FC_IS_QOS_DATA(u16 fc) -{ - return (fc & 0x8C) == 0x88; -} - -#ifdef CONFIG_NET_SCHED -void ieee80211_install_qdisc(struct net_device *dev); -int ieee80211_qdisc_installed(struct net_device *dev); -int ieee80211_ht_agg_queue_add(struct ieee80211_local *local, - struct sta_info *sta, u16 tid); -void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local, - struct sta_info *sta, u16 tid, - u8 requeue); -void ieee80211_requeue(struct ieee80211_local *local, int queue); -int ieee80211_wme_register(void); -void ieee80211_wme_unregister(void); -#else -static inline void ieee80211_install_qdisc(struct net_device *dev) -{ -} -static inline int ieee80211_qdisc_installed(struct net_device *dev) -{ - return 0; -} -static inline int ieee80211_ht_agg_queue_add(struct ieee80211_local *local, - struct sta_info *sta, u16 tid) -{ - return -EAGAIN; -} -static inline void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local, - struct sta_info *sta, u16 tid, - u8 requeue) -{ -} -static inline void ieee80211_requeue(struct ieee80211_local *local, int queue) -{ -} -static inline int ieee80211_wme_register(void) -{ - return 0; -} -static inline void ieee80211_wme_unregister(void) -{ -} -#endif /* CONFIG_NET_SCHED */ - -#endif /* _WME_H */ diff --git a/package/mac80211/src/net/mac80211/wpa.c b/package/mac80211/src/net/mac80211/wpa.c deleted file mode 100644 index b35e51c6ce..0000000000 --- a/package/mac80211/src/net/mac80211/wpa.c +++ /dev/null @@ -1,604 +0,0 @@ -/* - * Copyright 2002-2004, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/compiler.h> -#include <net/mac80211.h> - -#include "ieee80211_i.h" -#include "michael.h" -#include "tkip.h" -#include "aes_ccm.h" -#include "wpa.h" - -static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da, - u8 *qos_tid, u8 **data, size_t *data_len) -{ - struct ieee80211_hdr *hdr; - size_t hdrlen; - u16 fc; - int a4_included; - u8 *pos; - - hdr = (struct ieee80211_hdr *) skb->data; - fc = le16_to_cpu(hdr->frame_control); - - hdrlen = 24; - if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) == - (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) { - hdrlen += ETH_ALEN; - *sa = hdr->addr4; - *da = hdr->addr3; - } else if (fc & IEEE80211_FCTL_FROMDS) { - *sa = hdr->addr3; - *da = hdr->addr1; - } else if (fc & IEEE80211_FCTL_TODS) { - *sa = hdr->addr2; - *da = hdr->addr3; - } else { - *sa = hdr->addr2; - *da = hdr->addr1; - } - - if (fc & 0x80) - hdrlen += 2; - - *data = skb->data + hdrlen; - *data_len = skb->len - hdrlen; - - a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == - (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - fc & IEEE80211_STYPE_QOS_DATA) { - pos = (u8 *) &hdr->addr4; - if (a4_included) - pos += 6; - *qos_tid = pos[0] & 0x0f; - *qos_tid |= 0x80; /* qos_included flag */ - } else - *qos_tid = 0; - - return skb->len < hdrlen ? -1 : 0; -} - - -ieee80211_tx_result -ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx) -{ - u8 *data, *sa, *da, *key, *mic, qos_tid; - size_t data_len; - u16 fc; - struct sk_buff *skb = tx->skb; - int authenticator; - int wpa_test = 0; - - fc = tx->fc; - - if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 || - !WLAN_FC_DATA_PRESENT(fc)) - return TX_CONTINUE; - - if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)) - return TX_DROP; - - if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) && - !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) && - !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) && - !wpa_test) { - /* hwaccel - with no need for preallocated room for Michael MIC - */ - return TX_CONTINUE; - } - - if (skb_tailroom(skb) < MICHAEL_MIC_LEN) { - I802_DEBUG_INC(tx->local->tx_expand_skb_head); - if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, - MICHAEL_MIC_LEN + TKIP_ICV_LEN, - GFP_ATOMIC))) { - printk(KERN_DEBUG "%s: failed to allocate more memory " - "for Michael MIC\n", tx->dev->name); - return TX_DROP; - } - } - -#if 0 - authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */ -#else - authenticator = 1; -#endif - key = &tx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY : - ALG_TKIP_TEMP_AUTH_RX_MIC_KEY]; - mic = skb_put(skb, MICHAEL_MIC_LEN); - michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic); - - return TX_CONTINUE; -} - - -ieee80211_rx_result -ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx) -{ - u8 *data, *sa, *da, *key = NULL, qos_tid; - size_t data_len; - u16 fc; - u8 mic[MICHAEL_MIC_LEN]; - struct sk_buff *skb = rx->skb; - int authenticator = 1, wpa_test = 0; - DECLARE_MAC_BUF(mac); - - fc = rx->fc; - - /* - * No way to verify the MIC if the hardware stripped it - */ - if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED) - return RX_CONTINUE; - - if (!rx->key || rx->key->conf.alg != ALG_TKIP || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc)) - return RX_CONTINUE; - - if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len) - || data_len < MICHAEL_MIC_LEN) - return RX_DROP_UNUSABLE; - - data_len -= MICHAEL_MIC_LEN; - -#if 0 - authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */ -#else - authenticator = 1; -#endif - key = &rx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY : - ALG_TKIP_TEMP_AUTH_TX_MIC_KEY]; - michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic); - if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) { - if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) - return RX_DROP_UNUSABLE; - - printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from " - "%s\n", rx->dev->name, print_mac(mac, sa)); - - mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx, - (void *) skb->data); - return RX_DROP_UNUSABLE; - } - - /* remove Michael MIC from payload */ - skb_trim(skb, skb->len - MICHAEL_MIC_LEN); - - /* update IV in key information to be able to detect replays */ - rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32; - rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16; - - return RX_CONTINUE; -} - - -static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx, - struct sk_buff *skb, int test) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_key *key = tx->key; - int hdrlen, len, tailneed; - u16 fc; - u8 *pos; - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - len = skb->len - hdrlen; - - if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) - tailneed = 0; - else - tailneed = TKIP_ICV_LEN; - - if ((skb_headroom(skb) < TKIP_IV_LEN || - skb_tailroom(skb) < tailneed)) { - I802_DEBUG_INC(tx->local->tx_expand_skb_head); - if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed, - GFP_ATOMIC))) - return -1; - } - - pos = skb_push(skb, TKIP_IV_LEN); - memmove(pos, pos + TKIP_IV_LEN, hdrlen); - pos += hdrlen; - - /* Increase IV for the frame */ - key->u.tkip.iv16++; - if (key->u.tkip.iv16 == 0) - key->u.tkip.iv32++; - - if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) { - hdr = (struct ieee80211_hdr *)skb->data; - - /* hwaccel - with preallocated room for IV */ - ieee80211_tkip_add_iv(pos, key, - (u8) (key->u.tkip.iv16 >> 8), - (u8) (((key->u.tkip.iv16 >> 8) | 0x20) & - 0x7f), - (u8) key->u.tkip.iv16); - - tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; - return 0; - } - - /* Add room for ICV */ - skb_put(skb, TKIP_ICV_LEN); - - hdr = (struct ieee80211_hdr *) skb->data; - ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm, - key, pos, len, hdr->addr2); - return 0; -} - - -ieee80211_tx_result -ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx) -{ - struct sk_buff *skb = tx->skb; - int wpa_test = 0, test = 0; - - tx->u.tx.control->icv_len = TKIP_ICV_LEN; - tx->u.tx.control->iv_len = TKIP_IV_LEN; - ieee80211_tx_set_iswep(tx); - - if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) && - !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) && - !wpa_test) { - /* hwaccel - with no need for preallocated room for IV/ICV */ - tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; - return TX_CONTINUE; - } - - if (tkip_encrypt_skb(tx, skb, test) < 0) - return TX_DROP; - - if (tx->u.tx.extra_frag) { - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test) - < 0) - return TX_DROP; - } - } - - return TX_CONTINUE; -} - - -ieee80211_rx_result -ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; - u16 fc; - int hdrlen, res, hwaccel = 0, wpa_test = 0; - struct ieee80211_key *key = rx->key; - struct sk_buff *skb = rx->skb; - DECLARE_MAC_BUF(mac); - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - return RX_CONTINUE; - - if (!rx->sta || skb->len - hdrlen < 12) - return RX_DROP_UNUSABLE; - - if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) { - if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) { - /* - * Hardware took care of all processing, including - * replay protection, and stripped the ICV/IV so - * we cannot do any checks here. - */ - return RX_CONTINUE; - } - - /* let TKIP code verify IV, but skip decryption */ - hwaccel = 1; - } - - res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm, - key, skb->data + hdrlen, - skb->len - hdrlen, rx->sta->addr, - hwaccel, rx->u.rx.queue, - &rx->u.rx.tkip_iv32, - &rx->u.rx.tkip_iv16); - if (res != TKIP_DECRYPT_OK || wpa_test) { -#ifdef CONFIG_MAC80211_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "%s: TKIP decrypt failed for RX " - "frame from %s (res=%d)\n", rx->dev->name, - print_mac(mac, rx->sta->addr), res); -#endif /* CONFIG_MAC80211_DEBUG */ - return RX_DROP_UNUSABLE; - } - - /* Trim ICV */ - skb_trim(skb, skb->len - TKIP_ICV_LEN); - - /* Remove IV */ - memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen); - skb_pull(skb, TKIP_IV_LEN); - - return RX_CONTINUE; -} - - -static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad, - int encrypted) -{ - u16 fc; - int a4_included, qos_included; - u8 qos_tid, *fc_pos, *data, *sa, *da; - int len_a; - size_t data_len; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - - fc_pos = (u8 *) &hdr->frame_control; - fc = fc_pos[0] ^ (fc_pos[1] << 8); - a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == - (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS); - - ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len); - data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0); - if (qos_tid & 0x80) { - qos_included = 1; - qos_tid &= 0x0f; - } else - qos_included = 0; - /* First block, b_0 */ - - b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */ - /* Nonce: QoS Priority | A2 | PN */ - b_0[1] = qos_tid; - memcpy(&b_0[2], hdr->addr2, 6); - memcpy(&b_0[8], pn, CCMP_PN_LEN); - /* l(m) */ - b_0[14] = (data_len >> 8) & 0xff; - b_0[15] = data_len & 0xff; - - - /* AAD (extra authenticate-only data) / masked 802.11 header - * FC | A1 | A2 | A3 | SC | [A4] | [QC] */ - - len_a = a4_included ? 28 : 22; - if (qos_included) - len_a += 2; - - aad[0] = 0; /* (len_a >> 8) & 0xff; */ - aad[1] = len_a & 0xff; - /* Mask FC: zero subtype b4 b5 b6 */ - aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6)); - /* Retry, PwrMgt, MoreData; set Protected */ - aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6); - memcpy(&aad[4], &hdr->addr1, 18); - - /* Mask Seq#, leave Frag# */ - aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f; - aad[23] = 0; - if (a4_included) { - memcpy(&aad[24], hdr->addr4, 6); - aad[30] = 0; - aad[31] = 0; - } else - memset(&aad[24], 0, 8); - if (qos_included) { - u8 *dpos = &aad[a4_included ? 30 : 24]; - - /* Mask QoS Control field */ - dpos[0] = qos_tid; - dpos[1] = 0; - } -} - - -static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id) -{ - hdr[0] = pn[5]; - hdr[1] = pn[4]; - hdr[2] = 0; - hdr[3] = 0x20 | (key_id << 6); - hdr[4] = pn[3]; - hdr[5] = pn[2]; - hdr[6] = pn[1]; - hdr[7] = pn[0]; -} - - -static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr) -{ - pn[0] = hdr[7]; - pn[1] = hdr[6]; - pn[2] = hdr[5]; - pn[3] = hdr[4]; - pn[4] = hdr[1]; - pn[5] = hdr[0]; - return (hdr[3] >> 6) & 0x03; -} - - -static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx, - struct sk_buff *skb, int test) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct ieee80211_key *key = tx->key; - int hdrlen, len, tailneed; - u16 fc; - u8 *pos, *pn, *b_0, *aad, *scratch; - int i; - - scratch = key->u.ccmp.tx_crypto_buf; - b_0 = scratch + 3 * AES_BLOCK_LEN; - aad = scratch + 4 * AES_BLOCK_LEN; - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - len = skb->len - hdrlen; - - if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) - tailneed = 0; - else - tailneed = CCMP_MIC_LEN; - - if ((skb_headroom(skb) < CCMP_HDR_LEN || - skb_tailroom(skb) < tailneed)) { - I802_DEBUG_INC(tx->local->tx_expand_skb_head); - if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed, - GFP_ATOMIC))) - return -1; - } - - pos = skb_push(skb, CCMP_HDR_LEN); - memmove(pos, pos + CCMP_HDR_LEN, hdrlen); - hdr = (struct ieee80211_hdr *) pos; - pos += hdrlen; - - /* PN = PN + 1 */ - pn = key->u.ccmp.tx_pn; - - for (i = CCMP_PN_LEN - 1; i >= 0; i--) { - pn[i]++; - if (pn[i]) - break; - } - - ccmp_pn2hdr(pos, pn, key->conf.keyidx); - - if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) { - /* hwaccel - with preallocated room for CCMP header */ - tx->u.tx.control->key_idx = key->conf.hw_key_idx; - return 0; - } - - pos += CCMP_HDR_LEN; - ccmp_special_blocks(skb, pn, b_0, aad, 0); - ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len, - pos, skb_put(skb, CCMP_MIC_LEN)); - - return 0; -} - - -ieee80211_tx_result -ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx) -{ - struct sk_buff *skb = tx->skb; - int test = 0; - - tx->u.tx.control->icv_len = CCMP_MIC_LEN; - tx->u.tx.control->iv_len = CCMP_HDR_LEN; - ieee80211_tx_set_iswep(tx); - - if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) && - !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { - /* hwaccel - with no need for preallocated room for CCMP " - * header or MIC fields */ - tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; - return TX_CONTINUE; - } - - if (ccmp_encrypt_skb(tx, skb, test) < 0) - return TX_DROP; - - if (tx->u.tx.extra_frag) { - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test) - < 0) - return TX_DROP; - } - } - - return TX_CONTINUE; -} - - -ieee80211_rx_result -ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; - u16 fc; - int hdrlen; - struct ieee80211_key *key = rx->key; - struct sk_buff *skb = rx->skb; - u8 pn[CCMP_PN_LEN]; - int data_len; - DECLARE_MAC_BUF(mac); - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - return RX_CONTINUE; - - data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN; - if (!rx->sta || data_len < 0) - return RX_DROP_UNUSABLE; - - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) - return RX_CONTINUE; - - (void) ccmp_hdr2pn(pn, skb->data + hdrlen); - - if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) { -#ifdef CONFIG_MAC80211_DEBUG - u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue]; - - printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from " - "%s (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN " - "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name, - print_mac(mac, rx->sta->addr), - pn[0], pn[1], pn[2], pn[3], pn[4], pn[5], - ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]); -#endif /* CONFIG_MAC80211_DEBUG */ - key->u.ccmp.replays++; - return RX_DROP_UNUSABLE; - } - - if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) { - /* hardware didn't decrypt/verify MIC */ - u8 *scratch, *b_0, *aad; - - scratch = key->u.ccmp.rx_crypto_buf; - b_0 = scratch + 3 * AES_BLOCK_LEN; - aad = scratch + 4 * AES_BLOCK_LEN; - - ccmp_special_blocks(skb, pn, b_0, aad, 1); - - if (ieee80211_aes_ccm_decrypt( - key->u.ccmp.tfm, scratch, b_0, aad, - skb->data + hdrlen + CCMP_HDR_LEN, data_len, - skb->data + skb->len - CCMP_MIC_LEN, - skb->data + hdrlen + CCMP_HDR_LEN)) { -#ifdef CONFIG_MAC80211_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "%s: CCMP decrypt failed " - "for RX frame from %s\n", rx->dev->name, - print_mac(mac, rx->sta->addr)); -#endif /* CONFIG_MAC80211_DEBUG */ - return RX_DROP_UNUSABLE; - } - } - - memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN); - - /* Remove CCMP header and MIC */ - skb_trim(skb, skb->len - CCMP_MIC_LEN); - memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen); - skb_pull(skb, CCMP_HDR_LEN); - - return RX_CONTINUE; -} diff --git a/package/mac80211/src/net/mac80211/wpa.h b/package/mac80211/src/net/mac80211/wpa.h deleted file mode 100644 index 16e4dba4aa..0000000000 --- a/package/mac80211/src/net/mac80211/wpa.h +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright 2002-2004, Instant802 Networks, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef WPA_H -#define WPA_H - -#include <linux/skbuff.h> -#include <linux/types.h> -#include "ieee80211_i.h" - -ieee80211_tx_result -ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx); -ieee80211_rx_result -ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx); - -ieee80211_tx_result -ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx); -ieee80211_rx_result -ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx); - -ieee80211_tx_result -ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx); -ieee80211_rx_result -ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx); - -#endif /* WPA_H */ diff --git a/package/mac80211/src/net/wireless/Kconfig b/package/mac80211/src/net/wireless/Kconfig deleted file mode 100644 index 79270903bd..0000000000 --- a/package/mac80211/src/net/wireless/Kconfig +++ /dev/null @@ -1,31 +0,0 @@ -config CFG80211 - tristate "Improved wireless configuration API" - -config NL80211 - bool "nl80211 new netlink interface support" - depends on CFG80211 - default y - ---help--- - This option turns on the new netlink interface - (nl80211) support in cfg80211. - - If =n, drivers using mac80211 will be configured via - wireless extension support provided by that subsystem. - - If unsure, say Y. - -config WIRELESS_EXT - bool "Wireless extensions" - default n - ---help--- - This option enables the legacy wireless extensions - (wireless network interface configuration via ioctls.) - - Wireless extensions will be replaced by cfg80211 and - will be required only by legacy drivers that implement - wireless extension handlers. This option does not - affect the wireless-extension backward compatibility - code in cfg80211. - - Say N (if you can) unless you know you need wireless - extensions for external modules. diff --git a/package/mac80211/src/net/wireless/Makefile b/package/mac80211/src/net/wireless/Makefile deleted file mode 100644 index b9f943c45f..0000000000 --- a/package/mac80211/src/net/wireless/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_WIRELESS_EXT) += wext.o -obj-$(CONFIG_CFG80211) += cfg80211.o - -cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o -cfg80211-$(CONFIG_NL80211) += nl80211.o diff --git a/package/mac80211/src/net/wireless/core.c b/package/mac80211/src/net/wireless/core.c deleted file mode 100644 index 80afacdae4..0000000000 --- a/package/mac80211/src/net/wireless/core.c +++ /dev/null @@ -1,416 +0,0 @@ -/* - * This is the linux wireless configuration interface. - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ - -#include <linux/if.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/mutex.h> -#include <linux/list.h> -#include <linux/nl80211.h> -#include <linux/debugfs.h> -#include <linux/notifier.h> -#include <linux/device.h> -#include <net/genetlink.h> -#include <net/cfg80211.h> -#include <net/wireless.h> -#include "nl80211.h" -#include "core.h" -#include "sysfs.h" - -/* name for sysfs, %d is appended */ -#define PHY_NAME "phy" - -MODULE_AUTHOR("Johannes Berg"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("wireless configuration support"); - -/* RCU might be appropriate here since we usually - * only read the list, and that can happen quite - * often because we need to do it for each command */ -LIST_HEAD(cfg80211_drv_list); -DEFINE_MUTEX(cfg80211_drv_mutex); -static int wiphy_counter; - -/* for debugfs */ -static struct dentry *ieee80211_debugfs_dir; - -/* requires cfg80211_drv_mutex to be held! */ -static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy) -{ - struct cfg80211_registered_device *result = NULL, *drv; - - list_for_each_entry(drv, &cfg80211_drv_list, list) { - if (drv->idx == wiphy) { - result = drv; - break; - } - } - - return result; -} - -/* requires cfg80211_drv_mutex to be held! */ -static struct cfg80211_registered_device * -__cfg80211_drv_from_info(struct genl_info *info) -{ - int ifindex; - struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL; - struct net_device *dev; - int err = -EINVAL; - - if (info->attrs[NL80211_ATTR_WIPHY]) { - bywiphy = cfg80211_drv_by_wiphy( - nla_get_u32(info->attrs[NL80211_ATTR_WIPHY])); - err = -ENODEV; - } - - if (info->attrs[NL80211_ATTR_IFINDEX]) { - ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); - dev = dev_get_by_index(&init_net, ifindex); - if (dev) { - if (dev->ieee80211_ptr) - byifidx = - wiphy_to_dev(dev->ieee80211_ptr->wiphy); - dev_put(dev); - } - err = -ENODEV; - } - - if (bywiphy && byifidx) { - if (bywiphy != byifidx) - return ERR_PTR(-EINVAL); - else - return bywiphy; /* == byifidx */ - } - if (bywiphy) - return bywiphy; - - if (byifidx) - return byifidx; - - return ERR_PTR(err); -} - -struct cfg80211_registered_device * -cfg80211_get_dev_from_info(struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - - mutex_lock(&cfg80211_drv_mutex); - drv = __cfg80211_drv_from_info(info); - - /* if it is not an error we grab the lock on - * it to assure it won't be going away while - * we operate on it */ - if (!IS_ERR(drv)) - mutex_lock(&drv->mtx); - - mutex_unlock(&cfg80211_drv_mutex); - - return drv; -} - -struct cfg80211_registered_device * -cfg80211_get_dev_from_ifindex(int ifindex) -{ - struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV); - struct net_device *dev; - - mutex_lock(&cfg80211_drv_mutex); - dev = dev_get_by_index(&init_net, ifindex); - if (!dev) - goto out; - if (dev->ieee80211_ptr) { - drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy); - mutex_lock(&drv->mtx); - } else - drv = ERR_PTR(-ENODEV); - dev_put(dev); - out: - mutex_unlock(&cfg80211_drv_mutex); - return drv; -} - -void cfg80211_put_dev(struct cfg80211_registered_device *drv) -{ - BUG_ON(IS_ERR(drv)); - mutex_unlock(&drv->mtx); -} - -int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, - char *newname) -{ - int idx, taken = -1, result, digits; - - /* prohibit calling the thing phy%d when %d is not its number */ - sscanf(newname, PHY_NAME "%d%n", &idx, &taken); - if (taken == strlen(newname) && idx != rdev->idx) { - /* count number of places needed to print idx */ - digits = 1; - while (idx /= 10) - digits++; - /* - * deny the name if it is phy<idx> where <idx> is printed - * without leading zeroes. taken == strlen(newname) here - */ - if (taken == strlen(PHY_NAME) + digits) - return -EINVAL; - } - - /* this will check for collisions */ - result = device_rename(&rdev->wiphy.dev, newname); - if (result) - return result; - - if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent, - rdev->wiphy.debugfsdir, - rdev->wiphy.debugfsdir->d_parent, - newname)) - printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n", - newname); - - nl80211_notify_dev_rename(rdev); - - return 0; -} - -/* exported functions */ - -struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv) -{ - struct cfg80211_registered_device *drv; - int alloc_size; - - WARN_ON(!ops->add_key && ops->del_key); - WARN_ON(ops->add_key && !ops->del_key); - - alloc_size = sizeof(*drv) + sizeof_priv; - - drv = kzalloc(alloc_size, GFP_KERNEL); - if (!drv) - return NULL; - - drv->ops = ops; - - mutex_lock(&cfg80211_drv_mutex); - - drv->idx = wiphy_counter; - - /* now increase counter for the next device unless - * it has wrapped previously */ - if (wiphy_counter >= 0) - wiphy_counter++; - - mutex_unlock(&cfg80211_drv_mutex); - - if (unlikely(drv->idx < 0)) { - /* ugh, wrapped! */ - kfree(drv); - return NULL; - } - - /* give it a proper name */ - snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE, - PHY_NAME "%d", drv->idx); - - mutex_init(&drv->mtx); - mutex_init(&drv->devlist_mtx); - INIT_LIST_HEAD(&drv->netdev_list); - - device_initialize(&drv->wiphy.dev); - drv->wiphy.dev.class = &ieee80211_class; - drv->wiphy.dev.platform_data = drv; - - return &drv->wiphy; -} -EXPORT_SYMBOL(wiphy_new); - -int wiphy_register(struct wiphy *wiphy) -{ - struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy); - int res; - enum ieee80211_band band; - struct ieee80211_supported_band *sband; - bool have_band = false; - int i; - - /* sanity check supported bands/channels */ - for (band = 0; band < IEEE80211_NUM_BANDS; band++) { - sband = wiphy->bands[band]; - if (!sband) - continue; - - sband->band = band; - - if (!sband->n_channels || !sband->n_bitrates) { - WARN_ON(1); - return -EINVAL; - } - - for (i = 0; i < sband->n_channels; i++) { - sband->channels[i].orig_flags = - sband->channels[i].flags; - sband->channels[i].orig_mag = - sband->channels[i].max_antenna_gain; - sband->channels[i].orig_mpwr = - sband->channels[i].max_power; - sband->channels[i].band = band; - } - - have_band = true; - } - - if (!have_band) { - WARN_ON(1); - return -EINVAL; - } - - /* check and set up bitrates */ - ieee80211_set_bitrate_flags(wiphy); - - /* set up regulatory info */ - wiphy_update_regulatory(wiphy); - - mutex_lock(&cfg80211_drv_mutex); - - res = device_add(&drv->wiphy.dev); - if (res) - goto out_unlock; - - list_add(&drv->list, &cfg80211_drv_list); - - /* add to debugfs */ - drv->wiphy.debugfsdir = - debugfs_create_dir(wiphy_name(&drv->wiphy), - ieee80211_debugfs_dir); - - res = 0; -out_unlock: - mutex_unlock(&cfg80211_drv_mutex); - return res; -} -EXPORT_SYMBOL(wiphy_register); - -void wiphy_unregister(struct wiphy *wiphy) -{ - struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy); - - /* protect the device list */ - mutex_lock(&cfg80211_drv_mutex); - - BUG_ON(!list_empty(&drv->netdev_list)); - - /* - * Try to grab drv->mtx. If a command is still in progress, - * hopefully the driver will refuse it since it's tearing - * down the device already. We wait for this command to complete - * before unlinking the item from the list. - * Note: as codified by the BUG_ON above we cannot get here if - * a virtual interface is still associated. Hence, we can only - * get to lock contention here if userspace issues a command - * that identified the hardware by wiphy index. - */ - mutex_lock(&drv->mtx); - /* unlock again before freeing */ - mutex_unlock(&drv->mtx); - - list_del(&drv->list); - device_del(&drv->wiphy.dev); - debugfs_remove(drv->wiphy.debugfsdir); - - mutex_unlock(&cfg80211_drv_mutex); -} -EXPORT_SYMBOL(wiphy_unregister); - -void cfg80211_dev_free(struct cfg80211_registered_device *drv) -{ - mutex_destroy(&drv->mtx); - mutex_destroy(&drv->devlist_mtx); - kfree(drv); -} - -void wiphy_free(struct wiphy *wiphy) -{ - put_device(&wiphy->dev); -} -EXPORT_SYMBOL(wiphy_free); - -static int cfg80211_netdev_notifier_call(struct notifier_block * nb, - unsigned long state, - void *ndev) -{ - struct net_device *dev = ndev; - struct cfg80211_registered_device *rdev; - - if (!dev->ieee80211_ptr) - return 0; - - rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy); - - switch (state) { - case NETDEV_REGISTER: - mutex_lock(&rdev->devlist_mtx); - list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list); - if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj, - "phy80211")) { - printk(KERN_ERR "wireless: failed to add phy80211 " - "symlink to netdev!\n"); - } - dev->ieee80211_ptr->netdev = dev; - mutex_unlock(&rdev->devlist_mtx); - break; - case NETDEV_UNREGISTER: - mutex_lock(&rdev->devlist_mtx); - if (!list_empty(&dev->ieee80211_ptr->list)) { - sysfs_remove_link(&dev->dev.kobj, "phy80211"); - list_del_init(&dev->ieee80211_ptr->list); - } - mutex_unlock(&rdev->devlist_mtx); - break; - } - - return 0; -} - -static struct notifier_block cfg80211_netdev_notifier = { - .notifier_call = cfg80211_netdev_notifier_call, -}; - -static int cfg80211_init(void) -{ - int err = wiphy_sysfs_init(); - if (err) - goto out_fail_sysfs; - - err = register_netdevice_notifier(&cfg80211_netdev_notifier); - if (err) - goto out_fail_notifier; - - err = nl80211_init(); - if (err) - goto out_fail_nl80211; - - ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL); - - return 0; - -out_fail_nl80211: - unregister_netdevice_notifier(&cfg80211_netdev_notifier); -out_fail_notifier: - wiphy_sysfs_exit(); -out_fail_sysfs: - return err; -} -subsys_initcall(cfg80211_init); - -static void cfg80211_exit(void) -{ - debugfs_remove(ieee80211_debugfs_dir); - nl80211_exit(); - unregister_netdevice_notifier(&cfg80211_netdev_notifier); - wiphy_sysfs_exit(); -} -module_exit(cfg80211_exit); diff --git a/package/mac80211/src/net/wireless/core.h b/package/mac80211/src/net/wireless/core.h deleted file mode 100644 index 7a02c356d6..0000000000 --- a/package/mac80211/src/net/wireless/core.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Wireless configuration interface internals. - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ -#ifndef __NET_WIRELESS_CORE_H -#define __NET_WIRELESS_CORE_H -#include <linux/mutex.h> -#include <linux/list.h> -#include <linux/netdevice.h> -#include <net/genetlink.h> -#include <net/wireless.h> -#include <net/cfg80211.h> - -struct cfg80211_registered_device { - struct cfg80211_ops *ops; - struct list_head list; - /* we hold this mutex during any call so that - * we cannot do multiple calls at once, and also - * to avoid the deregister call to proceed while - * any call is in progress */ - struct mutex mtx; - - /* wiphy index, internal only */ - int idx; - - /* associate netdev list */ - struct mutex devlist_mtx; - struct list_head netdev_list; - - /* must be last because of the way we do wiphy_priv(), - * and it should at least be aligned to NETDEV_ALIGN */ - struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); -}; - -static inline -struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) -{ - BUG_ON(!wiphy); - return container_of(wiphy, struct cfg80211_registered_device, wiphy); -} - -extern struct mutex cfg80211_drv_mutex; -extern struct list_head cfg80211_drv_list; - -/* - * This function returns a pointer to the driver - * that the genl_info item that is passed refers to. - * If successful, it returns non-NULL and also locks - * the driver's mutex! - * - * This means that you need to call cfg80211_put_dev() - * before being allowed to acquire &cfg80211_drv_mutex! - * - * This is necessary because we need to lock the global - * mutex to get an item off the list safely, and then - * we lock the drv mutex so it doesn't go away under us. - * - * We don't want to keep cfg80211_drv_mutex locked - * for all the time in order to allow requests on - * other interfaces to go through at the same time. - * - * The result of this can be a PTR_ERR and hence must - * be checked with IS_ERR() for errors. - */ -extern struct cfg80211_registered_device * -cfg80211_get_dev_from_info(struct genl_info *info); - -/* identical to cfg80211_get_dev_from_info but only operate on ifindex */ -extern struct cfg80211_registered_device * -cfg80211_get_dev_from_ifindex(int ifindex); - -extern void cfg80211_put_dev(struct cfg80211_registered_device *drv); - -/* free object */ -extern void cfg80211_dev_free(struct cfg80211_registered_device *drv); - -extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv, - char *newname); - -void ieee80211_set_bitrate_flags(struct wiphy *wiphy); -void wiphy_update_regulatory(struct wiphy *wiphy); - -#endif /* __NET_WIRELESS_CORE_H */ diff --git a/package/mac80211/src/net/wireless/nl80211.c b/package/mac80211/src/net/wireless/nl80211.c deleted file mode 100644 index 5b3474798b..0000000000 --- a/package/mac80211/src/net/wireless/nl80211.c +++ /dev/null @@ -1,1282 +0,0 @@ -/* - * This is the new netlink-based wireless configuration interface. - * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> - */ - -#include <linux/if.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/mutex.h> -#include <linux/list.h> -#include <linux/if_ether.h> -#include <linux/ieee80211.h> -#include <linux/nl80211.h> -#include <linux/rtnetlink.h> -#include <linux/netlink.h> -#include <net/genetlink.h> -#include <net/cfg80211.h> -#include "core.h" -#include "nl80211.h" - -/* the netlink family */ -static struct genl_family nl80211_fam = { - .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ - .name = "nl80211", /* have users key off the name instead */ - .hdrsize = 0, /* no private header */ - .version = 1, /* no particular meaning now */ - .maxattr = NL80211_ATTR_MAX, -}; - -/* internal helper: get drv and dev */ -static int get_drv_dev_by_info_ifindex(struct genl_info *info, - struct cfg80211_registered_device **drv, - struct net_device **dev) -{ - int ifindex; - - if (!info->attrs[NL80211_ATTR_IFINDEX]) - return -EINVAL; - - ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); - *dev = dev_get_by_index(&init_net, ifindex); - if (!*dev) - return -ENODEV; - - *drv = cfg80211_get_dev_from_ifindex(ifindex); - if (IS_ERR(*drv)) { - dev_put(*dev); - return PTR_ERR(*drv); - } - - return 0; -} - -/* policy for the attributes */ -static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { - [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, - [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, - .len = BUS_ID_SIZE-1 }, - - [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, - [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, - [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, - - [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, - - [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, - .len = WLAN_MAX_KEY_LEN }, - [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, - [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, - [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, - - [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, - [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, - [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, - .len = IEEE80211_MAX_DATA_LEN }, - [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, - .len = IEEE80211_MAX_DATA_LEN }, - [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, - [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, - [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, - [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, - .len = NL80211_MAX_SUPP_RATES }, - [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, - [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, -}; - -/* message building helper */ -static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, - int flags, u8 cmd) -{ - /* since there is no private header just add the generic one */ - return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); -} - -/* netlink command implementations */ - -static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, - struct cfg80211_registered_device *dev) -{ - void *hdr; - struct nlattr *nl_bands, *nl_band; - struct nlattr *nl_freqs, *nl_freq; - struct nlattr *nl_rates, *nl_rate; - enum ieee80211_band band; - struct ieee80211_channel *chan; - struct ieee80211_rate *rate; - int i; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); - NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); - - nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); - if (!nl_bands) - goto nla_put_failure; - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) { - if (!dev->wiphy.bands[band]) - continue; - - nl_band = nla_nest_start(msg, band); - if (!nl_band) - goto nla_put_failure; - - /* add frequencies */ - nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); - if (!nl_freqs) - goto nla_put_failure; - - for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { - nl_freq = nla_nest_start(msg, i); - if (!nl_freq) - goto nla_put_failure; - - chan = &dev->wiphy.bands[band]->channels[i]; - NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, - chan->center_freq); - - if (chan->flags & IEEE80211_CHAN_DISABLED) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); - if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); - if (chan->flags & IEEE80211_CHAN_NO_IBSS) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); - if (chan->flags & IEEE80211_CHAN_RADAR) - NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); - - nla_nest_end(msg, nl_freq); - } - - nla_nest_end(msg, nl_freqs); - - /* add bitrates */ - nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); - if (!nl_rates) - goto nla_put_failure; - - for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { - nl_rate = nla_nest_start(msg, i); - if (!nl_rate) - goto nla_put_failure; - - rate = &dev->wiphy.bands[band]->bitrates[i]; - NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, - rate->bitrate); - if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) - NLA_PUT_FLAG(msg, - NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); - - nla_nest_end(msg, nl_rate); - } - - nla_nest_end(msg, nl_rates); - - nla_nest_end(msg, nl_band); - } - nla_nest_end(msg, nl_bands); - - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - -static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) -{ - int idx = 0; - int start = cb->args[0]; - struct cfg80211_registered_device *dev; - - mutex_lock(&cfg80211_drv_mutex); - list_for_each_entry(dev, &cfg80211_drv_list, list) { - if (++idx < start) - continue; - if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, - cb->nlh->nlmsg_seq, NLM_F_MULTI, - dev) < 0) - break; - } - mutex_unlock(&cfg80211_drv_mutex); - - cb->args[0] = idx; - - return skb->len; -} - -static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) -{ - struct sk_buff *msg; - struct cfg80211_registered_device *dev; - - dev = cfg80211_get_dev_from_info(info); - if (IS_ERR(dev)) - return PTR_ERR(dev); - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out_err; - - if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) - goto out_free; - - cfg80211_put_dev(dev); - - return genlmsg_unicast(msg, info->snd_pid); - - out_free: - nlmsg_free(msg); - out_err: - cfg80211_put_dev(dev); - return -ENOBUFS; -} - -static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *rdev; - int result; - - if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) - return -EINVAL; - - rdev = cfg80211_get_dev_from_info(info); - if (IS_ERR(rdev)) - return PTR_ERR(rdev); - - result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); - - cfg80211_put_dev(rdev); - return result; -} - - -static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, - struct net_device *dev) -{ - void *hdr; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); - /* TODO: interface type */ - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - -static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) -{ - int wp_idx = 0; - int if_idx = 0; - int wp_start = cb->args[0]; - int if_start = cb->args[1]; - struct cfg80211_registered_device *dev; - struct wireless_dev *wdev; - - mutex_lock(&cfg80211_drv_mutex); - list_for_each_entry(dev, &cfg80211_drv_list, list) { - if (++wp_idx < wp_start) - continue; - if_idx = 0; - - mutex_lock(&dev->devlist_mtx); - list_for_each_entry(wdev, &dev->netdev_list, list) { - if (++if_idx < if_start) - continue; - if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, - cb->nlh->nlmsg_seq, NLM_F_MULTI, - wdev->netdev) < 0) - break; - } - mutex_unlock(&dev->devlist_mtx); - } - mutex_unlock(&cfg80211_drv_mutex); - - cb->args[0] = wp_idx; - cb->args[1] = if_idx; - - return skb->len; -} - -static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct sk_buff *msg; - struct cfg80211_registered_device *dev; - struct net_device *netdev; - int err; - - err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); - if (err) - return err; - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out_err; - - if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) - goto out_free; - - dev_put(netdev); - cfg80211_put_dev(dev); - - return genlmsg_unicast(msg, info->snd_pid); - - out_free: - nlmsg_free(msg); - out_err: - dev_put(netdev); - cfg80211_put_dev(dev); - return -ENOBUFS; -} - -static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { - [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, - [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, -}; - -static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) -{ - struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; - int flag; - - *mntrflags = 0; - - if (!nla) - return -EINVAL; - - if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, - nla, mntr_flags_policy)) - return -EINVAL; - - for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) - if (flags[flag]) - *mntrflags |= (1<<flag); - - return 0; -} - -static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err, ifindex; - enum nl80211_iftype type; - struct net_device *dev; - u32 flags; - - if (info->attrs[NL80211_ATTR_IFTYPE]) { - type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); - if (type > NL80211_IFTYPE_MAX) - return -EINVAL; - } else - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - ifindex = dev->ifindex; - dev_put(dev); - - if (!drv->ops->change_virtual_intf) { - err = -EOPNOTSUPP; - goto unlock; - } - - rtnl_lock(); - err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? - info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, - &flags); - err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, - type, err ? NULL : &flags); - rtnl_unlock(); - - unlock: - cfg80211_put_dev(drv); - return err; -} - -static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; - u32 flags; - - if (!info->attrs[NL80211_ATTR_IFNAME]) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_IFTYPE]) { - type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); - if (type > NL80211_IFTYPE_MAX) - return -EINVAL; - } - - drv = cfg80211_get_dev_from_info(info); - if (IS_ERR(drv)) - return PTR_ERR(drv); - - if (!drv->ops->add_virtual_intf) { - err = -EOPNOTSUPP; - goto unlock; - } - - rtnl_lock(); - err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? - info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, - &flags); - err = drv->ops->add_virtual_intf(&drv->wiphy, - nla_data(info->attrs[NL80211_ATTR_IFNAME]), - type, err ? NULL : &flags); - rtnl_unlock(); - - unlock: - cfg80211_put_dev(drv); - return err; -} - -static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int ifindex, err; - struct net_device *dev; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - ifindex = dev->ifindex; - dev_put(dev); - - if (!drv->ops->del_virtual_intf) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - return err; -} - -struct get_key_cookie { - struct sk_buff *msg; - int error; -}; - -static void get_key_callback(void *c, struct key_params *params) -{ - struct get_key_cookie *cookie = c; - - if (params->key) - NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, - params->key_len, params->key); - - if (params->seq) - NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, - params->seq_len, params->seq); - - if (params->cipher) - NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, - params->cipher); - - return; - nla_put_failure: - cookie->error = 1; -} - -static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx = 0; - u8 *mac_addr = NULL; - struct get_key_cookie cookie = { - .error = 0, - }; - void *hdr; - struct sk_buff *msg; - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->get_key) { - err = -EOPNOTSUPP; - goto out; - } - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) { - err = -ENOMEM; - goto out; - } - - hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, - NL80211_CMD_NEW_KEY); - - if (IS_ERR(hdr)) { - err = PTR_ERR(hdr); - goto out; - } - - cookie.msg = msg; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); - if (mac_addr) - NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - - rtnl_lock(); - err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, - &cookie, get_key_callback); - rtnl_unlock(); - - if (err) - goto out; - - if (cookie.error) - goto nla_put_failure; - - genlmsg_end(msg, hdr); - err = genlmsg_unicast(msg, info->snd_pid); - goto out; - - nla_put_failure: - err = -ENOBUFS; - nlmsg_free(msg); - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx; - - if (!info->attrs[NL80211_ATTR_KEY_IDX]) - return -EINVAL; - - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - /* currently only support setting default key */ - if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->set_default_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct key_params params; - u8 key_idx = 0; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_KEY_DATA]) { - params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); - params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); - } - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - if (key_idx > 3) - return -EINVAL; - - /* - * Disallow pairwise keys with non-zero index unless it's WEP - * (because current deployments use pairwise WEP keys with - * non-zero indizes but 802.11i clearly specifies to use zero) - */ - if (mac_addr && key_idx && - params.cipher != WLAN_CIPHER_SUITE_WEP40 && - params.cipher != WLAN_CIPHER_SUITE_WEP104) - return -EINVAL; - - /* TODO: add definitions for the lengths to linux/ieee80211.h */ - switch (params.cipher) { - case WLAN_CIPHER_SUITE_WEP40: - if (params.key_len != 5) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_TKIP: - if (params.key_len != 32) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_CCMP: - if (params.key_len != 16) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_WEP104: - if (params.key_len != 13) - return -EINVAL; - break; - default: - return -EINVAL; - } - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->add_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 key_idx = 0; - u8 *mac_addr = NULL; - - if (info->attrs[NL80211_ATTR_KEY_IDX]) - key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); - - if (key_idx > 3) - return -EINVAL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_key) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) -{ - int (*call)(struct wiphy *wiphy, struct net_device *dev, - struct beacon_parameters *info); - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct beacon_parameters params; - int haveinfo = 0; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - switch (info->genlhdr->cmd) { - case NL80211_CMD_NEW_BEACON: - /* these are required for NEW_BEACON */ - if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || - !info->attrs[NL80211_ATTR_DTIM_PERIOD] || - !info->attrs[NL80211_ATTR_BEACON_HEAD]) { - err = -EINVAL; - goto out; - } - - call = drv->ops->add_beacon; - break; - case NL80211_CMD_SET_BEACON: - call = drv->ops->set_beacon; - break; - default: - WARN_ON(1); - err = -EOPNOTSUPP; - goto out; - } - - if (!call) { - err = -EOPNOTSUPP; - goto out; - } - - memset(¶ms, 0, sizeof(params)); - - if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { - params.interval = - nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { - params.dtim_period = - nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { - params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); - params.head_len = - nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); - haveinfo = 1; - } - - if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { - params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); - params.tail_len = - nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); - haveinfo = 1; - } - - if (!haveinfo) { - err = -EINVAL; - goto out; - } - - rtnl_lock(); - err = call(&drv->wiphy, dev, ¶ms); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_beacon) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_beacon(&drv->wiphy, dev); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { - [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, - [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, - [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, -}; - -static int parse_station_flags(struct nlattr *nla, u32 *staflags) -{ - struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; - int flag; - - *staflags = 0; - - if (!nla) - return 0; - - if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, - nla, sta_flags_policy)) - return -EINVAL; - - *staflags = STATION_FLAG_CHANGED; - - for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) - if (flags[flag]) - *staflags |= (1<<flag); - - return 0; -} - -static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, - int flags, struct net_device *dev, - u8 *mac_addr, struct station_stats *stats) -{ - void *hdr; - struct nlattr *statsattr; - - hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); - if (!hdr) - return -1; - - NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); - NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); - - statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS); - if (!statsattr) - goto nla_put_failure; - if (stats->filled & STATION_STAT_INACTIVE_TIME) - NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME, - stats->inactive_time); - if (stats->filled & STATION_STAT_RX_BYTES) - NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES, - stats->rx_bytes); - if (stats->filled & STATION_STAT_TX_BYTES) - NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES, - stats->tx_bytes); - - nla_nest_end(msg, statsattr); - - return genlmsg_end(msg, hdr); - - nla_put_failure: - return genlmsg_cancel(msg, hdr); -} - - -static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_stats stats; - struct sk_buff *msg; - u8 *mac_addr = NULL; - - memset(&stats, 0, sizeof(stats)); - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->get_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats); - rtnl_unlock(); - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - goto out; - - if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, - dev, mac_addr, &stats) < 0) - goto out_free; - - err = genlmsg_unicast(msg, info->snd_pid); - goto out; - - out_free: - nlmsg_free(msg); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -/* - * Get vlan interface making sure it is on the right wiphy. - */ -static int get_vlan(struct nlattr *vlanattr, - struct cfg80211_registered_device *rdev, - struct net_device **vlan) -{ - *vlan = NULL; - - if (vlanattr) { - *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); - if (!*vlan) - return -ENODEV; - if (!(*vlan)->ieee80211_ptr) - return -EINVAL; - if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) - return -EINVAL; - } - return 0; -} - -static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_parameters params; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - params.listen_interval = -1; - - if (info->attrs[NL80211_ATTR_STA_AID]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { - params.supported_rates = - nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.supported_rates_len = - nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - } - - if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) - params.listen_interval = - nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); - - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); - if (err) - goto out; - - if (!drv->ops->change_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); - rtnl_unlock(); - - out: - if (params.vlan) - dev_put(params.vlan); - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - struct station_parameters params; - u8 *mac_addr = NULL; - - memset(¶ms, 0, sizeof(params)); - - if (!info->attrs[NL80211_ATTR_MAC]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_AID]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) - return -EINVAL; - - if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) - return -EINVAL; - - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - params.supported_rates = - nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.supported_rates_len = - nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); - params.listen_interval = - nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); - params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); - - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) - return -EINVAL; - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); - if (err) - goto out; - - if (!drv->ops->add_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); - rtnl_unlock(); - - out: - if (params.vlan) - dev_put(params.vlan); - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) -{ - struct cfg80211_registered_device *drv; - int err; - struct net_device *dev; - u8 *mac_addr = NULL; - - if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - - err = get_drv_dev_by_info_ifindex(info, &drv, &dev); - if (err) - return err; - - if (!drv->ops->del_station) { - err = -EOPNOTSUPP; - goto out; - } - - rtnl_lock(); - err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); - rtnl_unlock(); - - out: - cfg80211_put_dev(drv); - dev_put(dev); - return err; -} - -static struct genl_ops nl80211_ops[] = { - { - .cmd = NL80211_CMD_GET_WIPHY, - .doit = nl80211_get_wiphy, - .dumpit = nl80211_dump_wiphy, - .policy = nl80211_policy, - /* can be retrieved by unprivileged users */ - }, - { - .cmd = NL80211_CMD_SET_WIPHY, - .doit = nl80211_set_wiphy, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_GET_INTERFACE, - .doit = nl80211_get_interface, - .dumpit = nl80211_dump_interface, - .policy = nl80211_policy, - /* can be retrieved by unprivileged users */ - }, - { - .cmd = NL80211_CMD_SET_INTERFACE, - .doit = nl80211_set_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_INTERFACE, - .doit = nl80211_new_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_INTERFACE, - .doit = nl80211_del_interface, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_GET_KEY, - .doit = nl80211_get_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_KEY, - .doit = nl80211_set_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_KEY, - .doit = nl80211_new_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_KEY, - .doit = nl80211_del_key, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_addset_beacon, - }, - { - .cmd = NL80211_CMD_NEW_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_addset_beacon, - }, - { - .cmd = NL80211_CMD_DEL_BEACON, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - .doit = nl80211_del_beacon, - }, - { - .cmd = NL80211_CMD_GET_STATION, - .doit = nl80211_get_station, - /* TODO: implement dumpit */ - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_SET_STATION, - .doit = nl80211_set_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_NEW_STATION, - .doit = nl80211_new_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = NL80211_CMD_DEL_STATION, - .doit = nl80211_del_station, - .policy = nl80211_policy, - .flags = GENL_ADMIN_PERM, - }, -}; - -/* multicast groups */ -static struct genl_multicast_group nl80211_config_mcgrp = { - .name = "config", -}; - -/* notification functions */ - -void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) -{ - struct sk_buff *msg; - - msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); - if (!msg) - return; - - if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { - nlmsg_free(msg); - return; - } - - genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); -} - -/* initialisation/exit functions */ - -int nl80211_init(void) -{ - int err, i; - - err = genl_register_family(&nl80211_fam); - if (err) - return err; - - for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { - err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); - if (err) - goto err_out; - } - - err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); - if (err) - goto err_out; - - return 0; - err_out: - genl_unregister_family(&nl80211_fam); - return err; -} - -void nl80211_exit(void) -{ - genl_unregister_family(&nl80211_fam); -} diff --git a/package/mac80211/src/net/wireless/nl80211.h b/package/mac80211/src/net/wireless/nl80211.h deleted file mode 100644 index f3ea5c029a..0000000000 --- a/package/mac80211/src/net/wireless/nl80211.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef __NET_WIRELESS_NL80211_H -#define __NET_WIRELESS_NL80211_H - -#include "core.h" - -#ifdef CONFIG_NL80211 -extern int nl80211_init(void); -extern void nl80211_exit(void); -extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev); -#else -static inline int nl80211_init(void) -{ - return 0; -} -static inline void nl80211_exit(void) -{ -} -static inline void nl80211_notify_dev_rename( - struct cfg80211_registered_device *rdev) -{ -} -#endif /* CONFIG_NL80211 */ - -#endif /* __NET_WIRELESS_NL80211_H */ diff --git a/package/mac80211/src/net/wireless/radiotap.c b/package/mac80211/src/net/wireless/radiotap.c deleted file mode 100644 index 28fbd0b0b5..0000000000 --- a/package/mac80211/src/net/wireless/radiotap.c +++ /dev/null @@ -1,261 +0,0 @@ -/* - * Radiotap parser - * - * Copyright 2007 Andy Green <andy@warmcat.com> - */ - -#include <net/cfg80211.h> -#include <net/ieee80211_radiotap.h> -#include <asm/unaligned.h> - -/* function prototypes and related defs are in include/net/cfg80211.h */ - -/** - * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization - * @iterator: radiotap_iterator to initialize - * @radiotap_header: radiotap header to parse - * @max_length: total length we can parse into (eg, whole packet length) - * - * Returns: 0 or a negative error code if there is a problem. - * - * This function initializes an opaque iterator struct which can then - * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap - * argument which is present in the header. It knows about extended - * present headers and handles them. - * - * How to use: - * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator - * struct ieee80211_radiotap_iterator (no need to init the struct beforehand) - * checking for a good 0 return code. Then loop calling - * __ieee80211_radiotap_iterator_next()... it returns either 0, - * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem. - * The iterator's @this_arg member points to the start of the argument - * associated with the current argument index that is present, which can be - * found in the iterator's @this_arg_index member. This arg index corresponds - * to the IEEE80211_RADIOTAP_... defines. - * - * Radiotap header length: - * You can find the CPU-endian total radiotap header length in - * iterator->max_length after executing ieee80211_radiotap_iterator_init() - * successfully. - * - * Alignment Gotcha: - * You must take care when dereferencing iterator.this_arg - * for multibyte types... the pointer is not aligned. Use - * get_unaligned((type *)iterator.this_arg) to dereference - * iterator.this_arg for type "type" safely on all arches. - * - * Example code: - * See Documentation/networking/radiotap-headers.txt - */ - -int ieee80211_radiotap_iterator_init( - struct ieee80211_radiotap_iterator *iterator, - struct ieee80211_radiotap_header *radiotap_header, - int max_length) -{ - /* Linux only supports version 0 radiotap format */ - if (radiotap_header->it_version) - return -EINVAL; - - /* sanity check for allowed length and radiotap length field */ - if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len))) - return -EINVAL; - - iterator->rtheader = radiotap_header; - iterator->max_length = le16_to_cpu(get_unaligned( - &radiotap_header->it_len)); - iterator->arg_index = 0; - iterator->bitmap_shifter = le32_to_cpu(get_unaligned( - &radiotap_header->it_present)); - iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header); - iterator->this_arg = NULL; - - /* find payload start allowing for extended bitmap(s) */ - - if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) { - while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) & - (1<<IEEE80211_RADIOTAP_EXT)) { - iterator->arg += sizeof(u32); - - /* - * check for insanity where the present bitmaps - * keep claiming to extend up to or even beyond the - * stated radiotap header length - */ - - if (((ulong)iterator->arg - - (ulong)iterator->rtheader) > iterator->max_length) - return -EINVAL; - } - - iterator->arg += sizeof(u32); - - /* - * no need to check again for blowing past stated radiotap - * header length, because ieee80211_radiotap_iterator_next - * checks it before it is dereferenced - */ - } - - /* we are all initialized happily */ - - return 0; -} -EXPORT_SYMBOL(ieee80211_radiotap_iterator_init); - - -/** - * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg - * @iterator: radiotap_iterator to move to next arg (if any) - * - * Returns: 0 if there is an argument to handle, - * -ENOENT if there are no more args or -EINVAL - * if there is something else wrong. - * - * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*) - * in @this_arg_index and sets @this_arg to point to the - * payload for the field. It takes care of alignment handling and extended - * present fields. @this_arg can be changed by the caller (eg, - * incremented to move inside a compound argument like - * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in - * little-endian format whatever the endianess of your CPU. - * - * Alignment Gotcha: - * You must take care when dereferencing iterator.this_arg - * for multibyte types... the pointer is not aligned. Use - * get_unaligned((type *)iterator.this_arg) to dereference - * iterator.this_arg for type "type" safely on all arches. - */ - -int ieee80211_radiotap_iterator_next( - struct ieee80211_radiotap_iterator *iterator) -{ - - /* - * small length lookup table for all radiotap types we heard of - * starting from b0 in the bitmap, so we can walk the payload - * area of the radiotap header - * - * There is a requirement to pad args, so that args - * of a given length must begin at a boundary of that length - * -- but note that compound args are allowed (eg, 2 x u16 - * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not - * a reliable indicator of alignment requirement. - * - * upper nybble: content alignment for arg - * lower nybble: content length for arg - */ - - static const u8 rt_sizes[] = { - [IEEE80211_RADIOTAP_TSFT] = 0x88, - [IEEE80211_RADIOTAP_FLAGS] = 0x11, - [IEEE80211_RADIOTAP_RATE] = 0x11, - [IEEE80211_RADIOTAP_CHANNEL] = 0x24, - [IEEE80211_RADIOTAP_FHSS] = 0x22, - [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22, - [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22, - [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11, - [IEEE80211_RADIOTAP_ANTENNA] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11, - [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11, - [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22, - [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11, - [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11, - /* - * add more here as they are defined in - * include/net/ieee80211_radiotap.h - */ - }; - - /* - * for every radiotap entry we can at - * least skip (by knowing the length)... - */ - - while (iterator->arg_index < sizeof(rt_sizes)) { - int hit = 0; - int pad; - - if (!(iterator->bitmap_shifter & 1)) - goto next_entry; /* arg not present */ - - /* - * arg is present, account for alignment padding - * 8-bit args can be at any alignment - * 16-bit args must start on 16-bit boundary - * 32-bit args must start on 32-bit boundary - * 64-bit args must start on 64-bit boundary - * - * note that total arg size can differ from alignment of - * elements inside arg, so we use upper nybble of length - * table to base alignment on - * - * also note: these alignments are ** relative to the - * start of the radiotap header **. There is no guarantee - * that the radiotap header itself is aligned on any - * kind of boundary. - * - * the above is why get_unaligned() is used to dereference - * multibyte elements from the radiotap area - */ - - pad = (((ulong)iterator->arg) - - ((ulong)iterator->rtheader)) & - ((rt_sizes[iterator->arg_index] >> 4) - 1); - - if (pad) - iterator->arg += - (rt_sizes[iterator->arg_index] >> 4) - pad; - - /* - * this is what we will return to user, but we need to - * move on first so next call has something fresh to test - */ - iterator->this_arg_index = iterator->arg_index; - iterator->this_arg = iterator->arg; - hit = 1; - - /* internally move on the size of this arg */ - iterator->arg += rt_sizes[iterator->arg_index] & 0x0f; - - /* - * check for insanity where we are given a bitmap that - * claims to have more arg content than the length of the - * radiotap section. We will normally end up equalling this - * max_length on the last arg, never exceeding it. - */ - - if (((ulong)iterator->arg - (ulong)iterator->rtheader) > - iterator->max_length) - return -EINVAL; - - next_entry: - iterator->arg_index++; - if (unlikely((iterator->arg_index & 31) == 0)) { - /* completed current u32 bitmap */ - if (iterator->bitmap_shifter & 1) { - /* b31 was set, there is more */ - /* move to next u32 bitmap */ - iterator->bitmap_shifter = le32_to_cpu( - get_unaligned(iterator->next_bitmap)); - iterator->next_bitmap++; - } else - /* no more bitmaps: end */ - iterator->arg_index = sizeof(rt_sizes); - } else /* just try the next bit */ - iterator->bitmap_shifter >>= 1; - - /* if we found a valid arg earlier, return it now */ - if (hit) - return 0; - } - - /* we don't know how to handle any more args, we're done */ - return -ENOENT; -} -EXPORT_SYMBOL(ieee80211_radiotap_iterator_next); diff --git a/package/mac80211/src/net/wireless/reg.c b/package/mac80211/src/net/wireless/reg.c deleted file mode 100644 index 2b63c96dcf..0000000000 --- a/package/mac80211/src/net/wireless/reg.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * Copyright 2002-2005, Instant802 Networks, Inc. - * Copyright 2005-2006, Devicescape Software, Inc. - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * This regulatory domain control implementation is highly incomplete, it - * only exists for the purpose of not regressing mac80211. - * - * For now, drivers can restrict the set of allowed channels by either - * not registering those channels or setting the IEEE80211_CHAN_DISABLED - * flag; that flag will only be *set* by this code, never *cleared. - * - * The usual implementation is for a driver to read a device EEPROM to - * determine which regulatory domain it should be operating under, then - * looking up the allowable channels in a driver-local table and finally - * registering those channels in the wiphy structure. - * - * Alternatively, drivers that trust the regulatory domain control here - * will register a complete set of capabilities and the control code - * will restrict the set by setting the IEEE80211_CHAN_* flags. - */ -#include <linux/kernel.h> -#include <net/wireless.h> -#include "core.h" - -static char *ieee80211_regdom = "US"; -module_param(ieee80211_regdom, charp, 0444); -MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code"); - -struct ieee80211_channel_range { - short start_freq; - short end_freq; - int max_power; - int max_antenna_gain; - u32 flags; -}; - -struct ieee80211_regdomain { - const char *code; - const struct ieee80211_channel_range *ranges; - int n_ranges; -}; - -#define RANGE_PWR(_start, _end, _pwr, _ag, _flags) \ - { _start, _end, _pwr, _ag, _flags } - - -/* - * Ideally, in the future, these definitions will be loaded from a - * userspace table via some daemon. - */ -static const struct ieee80211_channel_range ieee80211_US_channels[] = { - /* IEEE 802.11b/g, channels 1..11 */ - RANGE_PWR(2412, 2462, 27, 6, 0), - /* IEEE 802.11a, channels 52..64 */ - RANGE_PWR(5260, 5320, 23, 6, 0), - /* IEEE 802.11a, channels 149..165, outdoor */ - RANGE_PWR(5745, 5825, 30, 6, 0), -}; - -static const struct ieee80211_channel_range ieee80211_JP_channels[] = { - /* IEEE 802.11b/g, channels 1..14 */ - RANGE_PWR(2412, 2484, 20, 6, 0), - /* IEEE 802.11a, channels 34..48 */ - RANGE_PWR(5170, 5240, 20, 6, IEEE80211_CHAN_PASSIVE_SCAN), - /* IEEE 802.11a, channels 52..64 */ - RANGE_PWR(5260, 5320, 20, 6, IEEE80211_CHAN_NO_IBSS | - IEEE80211_CHAN_RADAR), -}; - -#define REGDOM(_code) \ - { \ - .code = __stringify(_code), \ - .ranges = ieee80211_ ##_code## _channels, \ - .n_ranges = ARRAY_SIZE(ieee80211_ ##_code## _channels), \ - } - -static const struct ieee80211_regdomain ieee80211_regdoms[] = { - REGDOM(US), - REGDOM(JP), -}; - - -static const struct ieee80211_regdomain *get_regdom(void) -{ - static const struct ieee80211_channel_range - ieee80211_world_channels[] = { - /* IEEE 802.11b/g, channels 1..11 */ - RANGE_PWR(2412, 2462, 27, 6, 0), - }; - static const struct ieee80211_regdomain regdom_world = REGDOM(world); - int i; - - for (i = 0; i < ARRAY_SIZE(ieee80211_regdoms); i++) - if (strcmp(ieee80211_regdom, ieee80211_regdoms[i].code) == 0) - return &ieee80211_regdoms[i]; - - return ®dom_world; -} - - -static void handle_channel(struct ieee80211_channel *chan, - const struct ieee80211_regdomain *rd) -{ - int i; - u32 flags = chan->orig_flags; - const struct ieee80211_channel_range *rg = NULL; - - for (i = 0; i < rd->n_ranges; i++) { - if (rd->ranges[i].start_freq <= chan->center_freq && - chan->center_freq <= rd->ranges[i].end_freq) { - rg = &rd->ranges[i]; - break; - } - } - - if (!rg) { - /* not found */ - flags |= IEEE80211_CHAN_DISABLED; - chan->flags = flags; - return; - } - - chan->flags = flags; - chan->max_antenna_gain = min(chan->orig_mag, - rg->max_antenna_gain); - chan->max_power = min(chan->orig_mpwr, rg->max_power); -} - -static void handle_band(struct ieee80211_supported_band *sband, - const struct ieee80211_regdomain *rd) -{ - int i; - - for (i = 0; i < sband->n_channels; i++) - handle_channel(&sband->channels[i], rd); -} - -void wiphy_update_regulatory(struct wiphy *wiphy) -{ - enum ieee80211_band band; - const struct ieee80211_regdomain *rd = get_regdom(); - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) - if (wiphy->bands[band]) - handle_band(wiphy->bands[band], rd); -} diff --git a/package/mac80211/src/net/wireless/sysfs.c b/package/mac80211/src/net/wireless/sysfs.c deleted file mode 100644 index 29f820e182..0000000000 --- a/package/mac80211/src/net/wireless/sysfs.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * This file provides /sys/class/ieee80211/<wiphy name>/ - * and some default attributes. - * - * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz> - * Copyright 2006 Johannes Berg <johannes@sipsolutions.net> - * - * This file is GPLv2 as found in COPYING. - */ - -#include <linux/device.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/nl80211.h> -#include <linux/rtnetlink.h> -#include <net/cfg80211.h> -#include "sysfs.h" -#include "core.h" - -static inline struct cfg80211_registered_device *dev_to_rdev( - struct device *dev) -{ - return container_of(dev, struct cfg80211_registered_device, wiphy.dev); -} - -static ssize_t _show_index(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx); -} - -static ssize_t _show_permaddr(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr; - - return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n", - addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); -} - -static struct device_attribute ieee80211_dev_attrs[] = { - __ATTR(index, S_IRUGO, _show_index, NULL), - __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL), - {} -}; - -static void wiphy_dev_release(struct device *dev) -{ - struct cfg80211_registered_device *rdev = dev_to_rdev(dev); - - cfg80211_dev_free(rdev); -} - -#ifdef CONFIG_HOTPLUG -static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - /* TODO, we probably need stuff here */ - return 0; -} -#endif - -struct class ieee80211_class = { - .name = "ieee80211", - .owner = THIS_MODULE, - .dev_release = wiphy_dev_release, - .dev_attrs = ieee80211_dev_attrs, -#ifdef CONFIG_HOTPLUG - .dev_uevent = wiphy_uevent, -#endif -}; - -int wiphy_sysfs_init(void) -{ - return class_register(&ieee80211_class); -} - -void wiphy_sysfs_exit(void) -{ - class_unregister(&ieee80211_class); -} diff --git a/package/mac80211/src/net/wireless/sysfs.h b/package/mac80211/src/net/wireless/sysfs.h deleted file mode 100644 index 65acbebd37..0000000000 --- a/package/mac80211/src/net/wireless/sysfs.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef __WIRELESS_SYSFS_H -#define __WIRELESS_SYSFS_H - -extern int wiphy_sysfs_init(void); -extern void wiphy_sysfs_exit(void); - -extern struct class ieee80211_class; - -#endif /* __WIRELESS_SYSFS_H */ diff --git a/package/mac80211/src/net/wireless/util.c b/package/mac80211/src/net/wireless/util.c deleted file mode 100644 index 77336c22fc..0000000000 --- a/package/mac80211/src/net/wireless/util.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * Wireless utility functions - * - * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> - */ -#include <net/wireless.h> -#include <asm/bitops.h> -#include "core.h" - -int ieee80211_channel_to_frequency(int chan) -{ - if (chan < 14) - return 2407 + chan * 5; - - if (chan == 14) - return 2484; - - /* FIXME: 802.11j 17.3.8.3.2 */ - return (chan + 1000) * 5; -} -EXPORT_SYMBOL(ieee80211_channel_to_frequency); - -int ieee80211_frequency_to_channel(int freq) -{ - if (freq == 2484) - return 14; - - if (freq < 2484) - return (freq - 2407) / 5; - - /* FIXME: 802.11j 17.3.8.3.2 */ - return freq/5 - 1000; -} -EXPORT_SYMBOL(ieee80211_frequency_to_channel); - -static void set_mandatory_flags_band(struct ieee80211_supported_band *sband, - enum ieee80211_band band) -{ - int i, want; - - switch (band) { - case IEEE80211_BAND_5GHZ: - want = 3; - for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 60 || - sband->bitrates[i].bitrate == 120 || - sband->bitrates[i].bitrate == 240) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_A; - want--; - } - } - WARN_ON(want); - break; - case IEEE80211_BAND_2GHZ: - want = 7; - for (i = 0; i < sband->n_bitrates; i++) { - if (sband->bitrates[i].bitrate == 10) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_B | - IEEE80211_RATE_MANDATORY_G; - want--; - } - - if (sband->bitrates[i].bitrate == 20 || - sband->bitrates[i].bitrate == 55 || - sband->bitrates[i].bitrate == 110 || - sband->bitrates[i].bitrate == 60 || - sband->bitrates[i].bitrate == 120 || - sband->bitrates[i].bitrate == 240) { - sband->bitrates[i].flags |= - IEEE80211_RATE_MANDATORY_G; - want--; - } - - if (sband->bitrates[i].bitrate != 10 && - sband->bitrates[i].bitrate != 20 && - sband->bitrates[i].bitrate != 55 && - sband->bitrates[i].bitrate != 110) - sband->bitrates[i].flags |= - IEEE80211_RATE_ERP_G; - } - WARN_ON(want != 0 && want != 3 && want != 6); - break; - case IEEE80211_NUM_BANDS: - WARN_ON(1); - break; - } -} - -void ieee80211_set_bitrate_flags(struct wiphy *wiphy) -{ - enum ieee80211_band band; - - for (band = 0; band < IEEE80211_NUM_BANDS; band++) - if (wiphy->bands[band]) - set_mandatory_flags_band(wiphy->bands[band], band); -} diff --git a/package/mac80211/src/net/wireless/wext.c b/package/mac80211/src/net/wireless/wext.c deleted file mode 100644 index a2d496f0b3..0000000000 --- a/package/mac80211/src/net/wireless/wext.c +++ /dev/null @@ -1,1522 +0,0 @@ -/* - * This file implement the Wireless Extensions APIs. - * - * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com> - * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved. - * - * (As all part of the Linux kernel, this file is GPL) - */ - -/************************** DOCUMENTATION **************************/ -/* - * API definition : - * -------------- - * See <linux/wireless.h> for details of the APIs and the rest. - * - * History : - * ------- - * - * v1 - 5.12.01 - Jean II - * o Created this file. - * - * v2 - 13.12.01 - Jean II - * o Move /proc/net/wireless stuff from net/core/dev.c to here - * o Make Wireless Extension IOCTLs go through here - * o Added iw_handler handling ;-) - * o Added standard ioctl description - * o Initial dumb commit strategy based on orinoco.c - * - * v3 - 19.12.01 - Jean II - * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call - * o Add event dispatcher function - * o Add event description - * o Propagate events as rtnetlink IFLA_WIRELESS option - * o Generate event on selected SET requests - * - * v4 - 18.04.02 - Jean II - * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1 - * - * v5 - 21.06.02 - Jean II - * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup) - * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes - * o Add IWEVCUSTOM for driver specific event/scanning token - * o Turn on WE_STRICT_WRITE by default + kernel warning - * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num) - * o Fix off-by-one in test (extra_size <= IFNAMSIZ) - * - * v6 - 9.01.03 - Jean II - * o Add common spy support : iw_handler_set_spy(), wireless_spy_update() - * o Add enhanced spy support : iw_handler_set_thrspy() and event. - * o Add WIRELESS_EXT version display in /proc/net/wireless - * - * v6 - 18.06.04 - Jean II - * o Change get_spydata() method for added safety - * o Remove spy #ifdef, they are always on -> cleaner code - * o Allow any size GET request if user specifies length > max - * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV - * o Start migrating get_wireless_stats to struct iw_handler_def - * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus - * Based on patch from Pavel Roskin <proski@gnu.org> : - * o Fix kernel data leak to user space in private handler handling - * - * v7 - 18.3.05 - Jean II - * o Remove (struct iw_point *)->pointer from events and streams - * o Remove spy_offset from struct iw_handler_def - * o Start deprecating dev->get_wireless_stats, output a warning - * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless - * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats) - * - * v8 - 17.02.06 - Jean II - * o RtNetlink requests support (SET/GET) - * - * v8b - 03.08.06 - Herbert Xu - * o Fix Wireless Event locking issues. - * - * v9 - 14.3.06 - Jean II - * o Change length in ESSID and NICK to strlen() instead of strlen()+1 - * o Make standard_ioctl_num and standard_event_num unsigned - * o Remove (struct net_device *)->get_wireless_stats() - * - * v10 - 16.3.07 - Jean II - * o Prevent leaking of kernel space in stream on 64 bits. - */ - -/***************************** INCLUDES *****************************/ - -#include <linux/module.h> -#include <linux/types.h> /* off_t */ -#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */ -#include <linux/proc_fs.h> -#include <linux/rtnetlink.h> /* rtnetlink stuff */ -#include <linux/seq_file.h> -#include <linux/init.h> /* for __init */ -#include <linux/if_arp.h> /* ARPHRD_ETHER */ -#include <linux/etherdevice.h> /* compare_ether_addr */ -#include <linux/interrupt.h> -#include <net/net_namespace.h> - -#include <linux/wireless.h> /* Pretty obvious */ -#include <net/iw_handler.h> /* New driver API */ -#include <net/netlink.h> -#include <net/wext.h> - -#include <asm/uaccess.h> /* copy_to_user() */ - -/************************* GLOBAL VARIABLES *************************/ -/* - * You should not use global variables, because of re-entrancy. - * On our case, it's only const, so it's OK... - */ -/* - * Meta-data about all the standard Wireless Extension request we - * know about. - */ -static const struct iw_ioctl_description standard_ioctl[] = { - [SIOCSIWCOMMIT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWNAME - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_CHAR, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWNWID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWNWID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWFREQ - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_FREQ, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWFREQ - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_FREQ, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWMODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_UINT, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWMODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_UINT, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWSENS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWSENS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRANGE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWRANGE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_range), - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWPRIV - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_priv_args), - .max_tokens = 16, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWSTATS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_NULL, - }, - [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */ - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_statistics), - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr), - .max_tokens = IW_MAX_SPY, - }, - [SIOCGIWSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr) + - sizeof(struct iw_quality), - .max_tokens = IW_MAX_SPY, - }, - [SIOCSIWTHRSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_thrspy), - .min_tokens = 1, - .max_tokens = 1, - }, - [SIOCGIWTHRSPY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct iw_thrspy), - .min_tokens = 1, - .max_tokens = 1, - }, - [SIOCSIWAP - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [SIOCGIWAP - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWMLME - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_mlme), - .max_tokens = sizeof(struct iw_mlme), - }, - [SIOCGIWAPLIST - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = sizeof(struct sockaddr) + - sizeof(struct iw_quality), - .max_tokens = IW_MAX_AP, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWSCAN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = 0, - .max_tokens = sizeof(struct iw_scan_req), - }, - [SIOCGIWSCAN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_SCAN_MAX_DATA, - .flags = IW_DESCR_FLAG_NOMAX, - }, - [SIOCSIWESSID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - .flags = IW_DESCR_FLAG_EVENT, - }, - [SIOCGIWESSID - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - .flags = IW_DESCR_FLAG_DUMP, - }, - [SIOCSIWNICKN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - }, - [SIOCGIWNICKN - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ESSID_MAX_SIZE, - }, - [SIOCSIWRATE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRATE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRTS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRTS - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWFRAG - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWFRAG - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWTXPOW - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWTXPOW - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWRETRY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWRETRY - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWENCODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ENCODING_TOKEN_MAX, - .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT, - }, - [SIOCGIWENCODE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_ENCODING_TOKEN_MAX, - .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT, - }, - [SIOCSIWPOWER - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWPOWER - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWGENIE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [SIOCGIWGENIE - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [SIOCSIWAUTH - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCGIWAUTH - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_PARAM, - }, - [SIOCSIWENCODEEXT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_encode_ext), - .max_tokens = sizeof(struct iw_encode_ext) + - IW_ENCODING_TOKEN_MAX, - }, - [SIOCGIWENCODEEXT - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_encode_ext), - .max_tokens = sizeof(struct iw_encode_ext) + - IW_ENCODING_TOKEN_MAX, - }, - [SIOCSIWPMKSA - SIOCIWFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .min_tokens = sizeof(struct iw_pmksa), - .max_tokens = sizeof(struct iw_pmksa), - }, -}; -static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl); - -/* - * Meta-data about all the additional standard Wireless Extension events - * we know about. - */ -static const struct iw_ioctl_description standard_event[] = { - [IWEVTXDROP - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVQUAL - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_QUAL, - }, - [IWEVCUSTOM - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_CUSTOM_MAX, - }, - [IWEVREGISTERED - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVEXPIRED - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_ADDR, - }, - [IWEVGENIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVMICHAELMICFAILURE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_michaelmicfailure), - }, - [IWEVASSOCREQIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVASSOCRESPIE - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = IW_GENERIC_IE_MAX, - }, - [IWEVPMKIDCAND - IWEVFIRST] = { - .header_type = IW_HEADER_TYPE_POINT, - .token_size = 1, - .max_tokens = sizeof(struct iw_pmkid_cand), - }, -}; -static const unsigned standard_event_num = ARRAY_SIZE(standard_event); - -/* Size (in bytes) of the various private data types */ -static const char iw_priv_type_size[] = { - 0, /* IW_PRIV_TYPE_NONE */ - 1, /* IW_PRIV_TYPE_BYTE */ - 1, /* IW_PRIV_TYPE_CHAR */ - 0, /* Not defined */ - sizeof(__u32), /* IW_PRIV_TYPE_INT */ - sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */ - sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */ - 0, /* Not defined */ -}; - -/* Size (in bytes) of various events */ -static const int event_type_size[] = { - IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */ - 0, - IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */ - 0, - IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */ - IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */ - IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */ - 0, - IW_EV_POINT_LEN, /* Without variable payload */ - IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */ - IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */ -}; - - -/************************ COMMON SUBROUTINES ************************/ -/* - * Stuff that may be used in various place or doesn't fit in one - * of the section below. - */ - -/* ---------------------------------------------------------------- */ -/* - * Return the driver handler associated with a specific Wireless Extension. - */ -static iw_handler get_handler(struct net_device *dev, unsigned int cmd) -{ - /* Don't "optimise" the following variable, it will crash */ - unsigned int index; /* *MUST* be unsigned */ - - /* Check if we have some wireless handlers defined */ - if (dev->wireless_handlers == NULL) - return NULL; - - /* Try as a standard command */ - index = cmd - SIOCIWFIRST; - if (index < dev->wireless_handlers->num_standard) - return dev->wireless_handlers->standard[index]; - - /* Try as a private command */ - index = cmd - SIOCIWFIRSTPRIV; - if (index < dev->wireless_handlers->num_private) - return dev->wireless_handlers->private[index]; - - /* Not found */ - return NULL; -} - -/* ---------------------------------------------------------------- */ -/* - * Get statistics out of the driver - */ -static struct iw_statistics *get_wireless_stats(struct net_device *dev) -{ - /* New location */ - if ((dev->wireless_handlers != NULL) && - (dev->wireless_handlers->get_wireless_stats != NULL)) - return dev->wireless_handlers->get_wireless_stats(dev); - - /* Not found */ - return NULL; -} - -/* ---------------------------------------------------------------- */ -/* - * Call the commit handler in the driver - * (if exist and if conditions are right) - * - * Note : our current commit strategy is currently pretty dumb, - * but we will be able to improve on that... - * The goal is to try to agreagate as many changes as possible - * before doing the commit. Drivers that will define a commit handler - * are usually those that need a reset after changing parameters, so - * we want to minimise the number of reset. - * A cool idea is to use a timer : at each "set" command, we re-set the - * timer, when the timer eventually fires, we call the driver. - * Hopefully, more on that later. - * - * Also, I'm waiting to see how many people will complain about the - * netif_running(dev) test. I'm open on that one... - * Hopefully, the driver will remember to do a commit in "open()" ;-) - */ -static int call_commit_handler(struct net_device *dev) -{ - if ((netif_running(dev)) && - (dev->wireless_handlers->standard[0] != NULL)) - /* Call the commit handler on the driver */ - return dev->wireless_handlers->standard[0](dev, NULL, - NULL, NULL); - else - return 0; /* Command completed successfully */ -} - -/* ---------------------------------------------------------------- */ -/* - * Calculate size of private arguments - */ -static inline int get_priv_size(__u16 args) -{ - int num = args & IW_PRIV_SIZE_MASK; - int type = (args & IW_PRIV_TYPE_MASK) >> 12; - - return num * iw_priv_type_size[type]; -} - -/* ---------------------------------------------------------------- */ -/* - * Re-calculate the size of private arguments - */ -static inline int adjust_priv_size(__u16 args, - union iwreq_data * wrqu) -{ - int num = wrqu->data.length; - int max = args & IW_PRIV_SIZE_MASK; - int type = (args & IW_PRIV_TYPE_MASK) >> 12; - - /* Make sure the driver doesn't goof up */ - if (max < num) - num = max; - - return num * iw_priv_type_size[type]; -} - -/* ---------------------------------------------------------------- */ -/* - * Standard Wireless Handler : get wireless stats - * Allow programatic access to /proc/net/wireless even if /proc - * doesn't exist... Also more efficient... - */ -static int iw_handler_get_iwstats(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - /* Get stats from the driver */ - struct iw_statistics *stats; - - stats = get_wireless_stats(dev); - if (stats) { - /* Copy statistics to extra */ - memcpy(extra, stats, sizeof(struct iw_statistics)); - wrqu->data.length = sizeof(struct iw_statistics); - - /* Check if we need to clear the updated flag */ - if (wrqu->data.flags != 0) - stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; - return 0; - } else - return -EOPNOTSUPP; -} - -/* ---------------------------------------------------------------- */ -/* - * Standard Wireless Handler : get iwpriv definitions - * Export the driver private handler definition - * They will be picked up by tools like iwpriv... - */ -static int iw_handler_get_private(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - /* Check if the driver has something to export */ - if ((dev->wireless_handlers->num_private_args == 0) || - (dev->wireless_handlers->private_args == NULL)) - return -EOPNOTSUPP; - - /* Check if there is enough buffer up there */ - if (wrqu->data.length < dev->wireless_handlers->num_private_args) { - /* User space can't know in advance how large the buffer - * needs to be. Give it a hint, so that we can support - * any size buffer we want somewhat efficiently... */ - wrqu->data.length = dev->wireless_handlers->num_private_args; - return -E2BIG; - } - - /* Set the number of available ioctls. */ - wrqu->data.length = dev->wireless_handlers->num_private_args; - - /* Copy structure to the user buffer. */ - memcpy(extra, dev->wireless_handlers->private_args, - sizeof(struct iw_priv_args) * wrqu->data.length); - - return 0; -} - - -/******************** /proc/net/wireless SUPPORT ********************/ -/* - * The /proc/net/wireless file is a human readable user-space interface - * exporting various wireless specific statistics from the wireless devices. - * This is the most popular part of the Wireless Extensions ;-) - * - * This interface is a pure clone of /proc/net/dev (in net/core/dev.c). - * The content of the file is basically the content of "struct iw_statistics". - */ - -#ifdef CONFIG_PROC_FS - -/* ---------------------------------------------------------------- */ -/* - * Print one entry (line) of /proc/net/wireless - */ -static void wireless_seq_printf_stats(struct seq_file *seq, - struct net_device *dev) -{ - /* Get stats from the driver */ - struct iw_statistics *stats = get_wireless_stats(dev); - - if (stats) { - seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d " - "%6d %6d %6d\n", - dev->name, stats->status, stats->qual.qual, - stats->qual.updated & IW_QUAL_QUAL_UPDATED - ? '.' : ' ', - ((__s32) stats->qual.level) - - ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), - stats->qual.updated & IW_QUAL_LEVEL_UPDATED - ? '.' : ' ', - ((__s32) stats->qual.noise) - - ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0), - stats->qual.updated & IW_QUAL_NOISE_UPDATED - ? '.' : ' ', - stats->discard.nwid, stats->discard.code, - stats->discard.fragment, stats->discard.retries, - stats->discard.misc, stats->miss.beacon); - stats->qual.updated &= ~IW_QUAL_ALL_UPDATED; - } -} - -/* ---------------------------------------------------------------- */ -/* - * Print info for /proc/net/wireless (print all entries) - */ -static int wireless_seq_show(struct seq_file *seq, void *v) -{ - if (v == SEQ_START_TOKEN) - seq_printf(seq, "Inter-| sta-| Quality | Discarded " - "packets | Missed | WE\n" - " face | tus | link level noise | nwid " - "crypt frag retry misc | beacon | %d\n", - WIRELESS_EXT); - else - wireless_seq_printf_stats(seq, v); - return 0; -} - -static const struct seq_operations wireless_seq_ops = { - .start = dev_seq_start, - .next = dev_seq_next, - .stop = dev_seq_stop, - .show = wireless_seq_show, -}; - -static int wireless_seq_open(struct inode *inode, struct file *file) -{ - struct seq_file *seq; - int res; - res = seq_open(file, &wireless_seq_ops); - if (!res) { - seq = file->private_data; - seq->private = get_proc_net(inode); - if (!seq->private) { - seq_release(inode, file); - res = -ENXIO; - } - } - return res; -} - -static int wireless_seq_release(struct inode *inode, struct file *file) -{ - struct seq_file *seq = file->private_data; - struct net *net = seq->private; - put_net(net); - return seq_release(inode, file); -} - -static const struct file_operations wireless_seq_fops = { - .owner = THIS_MODULE, - .open = wireless_seq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = wireless_seq_release, -}; - -int wext_proc_init(struct net *net) -{ - /* Create /proc/net/wireless entry */ - if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops)) - return -ENOMEM; - - return 0; -} - -void wext_proc_exit(struct net *net) -{ - proc_net_remove(net, "wireless"); -} -#endif /* CONFIG_PROC_FS */ - -/************************** IOCTL SUPPORT **************************/ -/* - * The original user space API to configure all those Wireless Extensions - * is through IOCTLs. - * In there, we check if we need to call the new driver API (iw_handler) - * or just call the driver ioctl handler. - */ - -/* ---------------------------------------------------------------- */ -/* - * Wrapper to call a standard Wireless Extension handler. - * We do various checks and also take care of moving data between - * user space and kernel space. - */ -static int ioctl_standard_call(struct net_device * dev, - struct ifreq * ifr, - unsigned int cmd, - iw_handler handler) -{ - struct iwreq * iwr = (struct iwreq *) ifr; - const struct iw_ioctl_description * descr; - struct iw_request_info info; - int ret = -EINVAL; - - /* Get the description of the IOCTL */ - if ((cmd - SIOCIWFIRST) >= standard_ioctl_num) - return -EOPNOTSUPP; - descr = &(standard_ioctl[cmd - SIOCIWFIRST]); - - /* Prepare the call */ - info.cmd = cmd; - info.flags = 0; - - /* Check if we have a pointer to user space data or not */ - if (descr->header_type != IW_HEADER_TYPE_POINT) { - - /* No extra arguments. Trivial to handle */ - ret = handler(dev, &info, &(iwr->u), NULL); - - /* Generate an event to notify listeners of the change */ - if ((descr->flags & IW_DESCR_FLAG_EVENT) && - ((ret == 0) || (ret == -EIWCOMMIT))) - wireless_send_event(dev, cmd, &(iwr->u), NULL); - } else { - char * extra; - int extra_size; - int user_length = 0; - int err; - int essid_compat = 0; - - /* Calculate space needed by arguments. Always allocate - * for max space. Easier, and won't last long... */ - extra_size = descr->max_tokens * descr->token_size; - - /* Check need for ESSID compatibility for WE < 21 */ - switch (cmd) { - case SIOCSIWESSID: - case SIOCGIWESSID: - case SIOCSIWNICKN: - case SIOCGIWNICKN: - if (iwr->u.data.length == descr->max_tokens + 1) - essid_compat = 1; - else if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - char essid[IW_ESSID_MAX_SIZE + 1]; - - err = copy_from_user(essid, iwr->u.data.pointer, - iwr->u.data.length * - descr->token_size); - if (err) - return -EFAULT; - - if (essid[iwr->u.data.length - 1] == '\0') - essid_compat = 1; - } - break; - default: - break; - } - - iwr->u.data.length -= essid_compat; - - /* Check what user space is giving us */ - if (IW_IS_SET(cmd)) { - /* Check NULL pointer */ - if ((iwr->u.data.pointer == NULL) && - (iwr->u.data.length != 0)) - return -EFAULT; - /* Check if number of token fits within bounds */ - if (iwr->u.data.length > descr->max_tokens) - return -E2BIG; - if (iwr->u.data.length < descr->min_tokens) - return -EINVAL; - } else { - /* Check NULL pointer */ - if (iwr->u.data.pointer == NULL) - return -EFAULT; - /* Save user space buffer size for checking */ - user_length = iwr->u.data.length; - - /* Don't check if user_length > max to allow forward - * compatibility. The test user_length < min is - * implied by the test at the end. */ - - /* Support for very large requests */ - if ((descr->flags & IW_DESCR_FLAG_NOMAX) && - (user_length > descr->max_tokens)) { - /* Allow userspace to GET more than max so - * we can support any size GET requests. - * There is still a limit : -ENOMEM. */ - extra_size = user_length * descr->token_size; - /* Note : user_length is originally a __u16, - * and token_size is controlled by us, - * so extra_size won't get negative and - * won't overflow... */ - } - } - - /* Create the kernel buffer */ - /* kzalloc ensures NULL-termination for essid_compat */ - extra = kzalloc(extra_size, GFP_KERNEL); - if (extra == NULL) - return -ENOMEM; - - /* If it is a SET, get all the extra data in here */ - if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - err = copy_from_user(extra, iwr->u.data.pointer, - iwr->u.data.length * - descr->token_size); - if (err) { - kfree(extra); - return -EFAULT; - } - } - - /* Call the handler */ - ret = handler(dev, &info, &(iwr->u), extra); - - iwr->u.data.length += essid_compat; - - /* If we have something to return to the user */ - if (!ret && IW_IS_GET(cmd)) { - /* Check if there is enough buffer up there */ - if (user_length < iwr->u.data.length) { - kfree(extra); - return -E2BIG; - } - - err = copy_to_user(iwr->u.data.pointer, extra, - iwr->u.data.length * - descr->token_size); - if (err) - ret = -EFAULT; - } - - /* Generate an event to notify listeners of the change */ - if ((descr->flags & IW_DESCR_FLAG_EVENT) && - ((ret == 0) || (ret == -EIWCOMMIT))) { - if (descr->flags & IW_DESCR_FLAG_RESTRICT) - /* If the event is restricted, don't - * export the payload */ - wireless_send_event(dev, cmd, &(iwr->u), NULL); - else - wireless_send_event(dev, cmd, &(iwr->u), - extra); - } - - /* Cleanup - I told you it wasn't that long ;-) */ - kfree(extra); - } - - /* Call commit handler if needed and defined */ - if (ret == -EIWCOMMIT) - ret = call_commit_handler(dev); - - /* Here, we will generate the appropriate event if needed */ - - return ret; -} - -/* ---------------------------------------------------------------- */ -/* - * Wrapper to call a private Wireless Extension handler. - * We do various checks and also take care of moving data between - * user space and kernel space. - * It's not as nice and slimline as the standard wrapper. The cause - * is struct iw_priv_args, which was not really designed for the - * job we are going here. - * - * IMPORTANT : This function prevent to set and get data on the same - * IOCTL and enforce the SET/GET convention. Not doing it would be - * far too hairy... - * If you need to set and get data at the same time, please don't use - * a iw_handler but process it in your ioctl handler (i.e. use the - * old driver API). - */ -static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr, - unsigned int cmd, iw_handler handler) -{ - struct iwreq * iwr = (struct iwreq *) ifr; - const struct iw_priv_args * descr = NULL; - struct iw_request_info info; - int extra_size = 0; - int i; - int ret = -EINVAL; - - /* Get the description of the IOCTL */ - for (i = 0; i < dev->wireless_handlers->num_private_args; i++) - if (cmd == dev->wireless_handlers->private_args[i].cmd) { - descr = &(dev->wireless_handlers->private_args[i]); - break; - } - - /* Compute the size of the set/get arguments */ - if (descr != NULL) { - if (IW_IS_SET(cmd)) { - int offset = 0; /* For sub-ioctls */ - /* Check for sub-ioctl handler */ - if (descr->name[0] == '\0') - /* Reserve one int for sub-ioctl index */ - offset = sizeof(__u32); - - /* Size of set arguments */ - extra_size = get_priv_size(descr->set_args); - - /* Does it fits in iwr ? */ - if ((descr->set_args & IW_PRIV_SIZE_FIXED) && - ((extra_size + offset) <= IFNAMSIZ)) - extra_size = 0; - } else { - /* Size of get arguments */ - extra_size = get_priv_size(descr->get_args); - - /* Does it fits in iwr ? */ - if ((descr->get_args & IW_PRIV_SIZE_FIXED) && - (extra_size <= IFNAMSIZ)) - extra_size = 0; - } - } - - /* Prepare the call */ - info.cmd = cmd; - info.flags = 0; - - /* Check if we have a pointer to user space data or not. */ - if (extra_size == 0) { - /* No extra arguments. Trivial to handle */ - ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u)); - } else { - char * extra; - int err; - - /* Check what user space is giving us */ - if (IW_IS_SET(cmd)) { - /* Check NULL pointer */ - if ((iwr->u.data.pointer == NULL) && - (iwr->u.data.length != 0)) - return -EFAULT; - - /* Does it fits within bounds ? */ - if (iwr->u.data.length > (descr->set_args & - IW_PRIV_SIZE_MASK)) - return -E2BIG; - } else if (iwr->u.data.pointer == NULL) - return -EFAULT; - - /* Always allocate for max space. Easier, and won't last - * long... */ - extra = kmalloc(extra_size, GFP_KERNEL); - if (extra == NULL) - return -ENOMEM; - - /* If it is a SET, get all the extra data in here */ - if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) { - err = copy_from_user(extra, iwr->u.data.pointer, - extra_size); - if (err) { - kfree(extra); - return -EFAULT; - } - } - - /* Call the handler */ - ret = handler(dev, &info, &(iwr->u), extra); - - /* If we have something to return to the user */ - if (!ret && IW_IS_GET(cmd)) { - - /* Adjust for the actual length if it's variable, - * avoid leaking kernel bits outside. */ - if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) { - extra_size = adjust_priv_size(descr->get_args, - &(iwr->u)); - } - - err = copy_to_user(iwr->u.data.pointer, extra, - extra_size); - if (err) - ret = -EFAULT; - } - - /* Cleanup - I told you it wasn't that long ;-) */ - kfree(extra); - } - - - /* Call commit handler if needed and defined */ - if (ret == -EIWCOMMIT) - ret = call_commit_handler(dev); - - return ret; -} - -/* ---------------------------------------------------------------- */ -/* - * Main IOCTl dispatcher. - * Check the type of IOCTL and call the appropriate wrapper... - */ -static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd) -{ - struct net_device *dev; - iw_handler handler; - - /* Permissions are already checked in dev_ioctl() before calling us. - * The copy_to/from_user() of ifr is also dealt with in there */ - - /* Make sure the device exist */ - if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL) - return -ENODEV; - - /* A bunch of special cases, then the generic case... - * Note that 'cmd' is already filtered in dev_ioctl() with - * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */ - if (cmd == SIOCGIWSTATS) - return ioctl_standard_call(dev, ifr, cmd, - &iw_handler_get_iwstats); - - if (cmd == SIOCGIWPRIV && dev->wireless_handlers) - return ioctl_standard_call(dev, ifr, cmd, - &iw_handler_get_private); - - /* Basic check */ - if (!netif_device_present(dev)) - return -ENODEV; - - /* New driver API : try to find the handler */ - handler = get_handler(dev, cmd); - if (handler) { - /* Standard and private are not the same */ - if (cmd < SIOCIWFIRSTPRIV) - return ioctl_standard_call(dev, ifr, cmd, handler); - else - return ioctl_private_call(dev, ifr, cmd, handler); - } - /* Old driver API : call driver ioctl handler */ - if (dev->do_ioctl) - return dev->do_ioctl(dev, ifr, cmd); - return -EOPNOTSUPP; -} - -/* entry point from dev ioctl */ -int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd, - void __user *arg) -{ - int ret; - - /* If command is `set a parameter', or - * `get the encoding parameters', check if - * the user has the right to do it */ - if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT) - && !capable(CAP_NET_ADMIN)) - return -EPERM; - - dev_load(net, ifr->ifr_name); - rtnl_lock(); - ret = wireless_process_ioctl(net, ifr, cmd); - rtnl_unlock(); - if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct iwreq))) - return -EFAULT; - return ret; -} - -/************************* EVENT PROCESSING *************************/ -/* - * Process events generated by the wireless layer or the driver. - * Most often, the event will be propagated through rtnetlink - */ - -/* ---------------------------------------------------------------- */ -/* - * Locking... - * ---------- - * - * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing - * the locking issue in here and implementing this code ! - * - * The issue : wireless_send_event() is often called in interrupt context, - * while the Netlink layer can never be called in interrupt context. - * The fully formed RtNetlink events are queued, and then a tasklet is run - * to feed those to Netlink. - * The skb_queue is interrupt safe, and its lock is not held while calling - * Netlink, so there is no possibility of dealock. - * Jean II - */ - -static struct sk_buff_head wireless_nlevent_queue; - -static int __init wireless_nlevent_init(void) -{ - skb_queue_head_init(&wireless_nlevent_queue); - return 0; -} - -subsys_initcall(wireless_nlevent_init); - -static void wireless_nlevent_process(unsigned long data) -{ - struct sk_buff *skb; - - while ((skb = skb_dequeue(&wireless_nlevent_queue))) - rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC); -} - -static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0); - -/* ---------------------------------------------------------------- */ -/* - * Fill a rtnetlink message with our event data. - * Note that we propage only the specified event and don't dump the - * current wireless config. Dumping the wireless config is far too - * expensive (for each parameter, the driver need to query the hardware). - */ -static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev, - int type, char *event, int event_len) -{ - struct ifinfomsg *r; - struct nlmsghdr *nlh; - - nlh = nlmsg_put(skb, 0, 0, type, sizeof(*r), 0); - if (nlh == NULL) - return -EMSGSIZE; - - r = nlmsg_data(nlh); - r->ifi_family = AF_UNSPEC; - r->__ifi_pad = 0; - r->ifi_type = dev->type; - r->ifi_index = dev->ifindex; - r->ifi_flags = dev_get_flags(dev); - r->ifi_change = 0; /* Wireless changes don't affect those flags */ - - /* Add the wireless events in the netlink packet */ - NLA_PUT(skb, IFLA_WIRELESS, event_len, event); - - return nlmsg_end(skb, nlh); - -nla_put_failure: - nlmsg_cancel(skb, nlh); - return -EMSGSIZE; -} - -/* ---------------------------------------------------------------- */ -/* - * Create and broadcast and send it on the standard rtnetlink socket - * This is a pure clone rtmsg_ifinfo() in net/core/rtnetlink.c - * Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field - * within a RTM_NEWLINK event. - */ -static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len) -{ - struct sk_buff *skb; - int err; - - skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); - if (!skb) - return; - - err = rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK, event, event_len); - if (err < 0) { - WARN_ON(err == -EMSGSIZE); - kfree_skb(skb); - return; - } - - NETLINK_CB(skb).dst_group = RTNLGRP_LINK; - skb_queue_tail(&wireless_nlevent_queue, skb); - tasklet_schedule(&wireless_nlevent_tasklet); -} - -/* ---------------------------------------------------------------- */ -/* - * Main event dispatcher. Called from other parts and drivers. - * Send the event on the appropriate channels. - * May be called from interrupt context. - */ -void wireless_send_event(struct net_device * dev, - unsigned int cmd, - union iwreq_data * wrqu, - char * extra) -{ - const struct iw_ioctl_description * descr = NULL; - int extra_len = 0; - struct iw_event *event; /* Mallocated whole event */ - int event_len; /* Its size */ - int hdr_len; /* Size of the event header */ - int wrqu_off = 0; /* Offset in wrqu */ - /* Don't "optimise" the following variable, it will crash */ - unsigned cmd_index; /* *MUST* be unsigned */ - - /* Get the description of the Event */ - if (cmd <= SIOCIWLAST) { - cmd_index = cmd - SIOCIWFIRST; - if (cmd_index < standard_ioctl_num) - descr = &(standard_ioctl[cmd_index]); - } else { - cmd_index = cmd - IWEVFIRST; - if (cmd_index < standard_event_num) - descr = &(standard_event[cmd_index]); - } - /* Don't accept unknown events */ - if (descr == NULL) { - /* Note : we don't return an error to the driver, because - * the driver would not know what to do about it. It can't - * return an error to the user, because the event is not - * initiated by a user request. - * The best the driver could do is to log an error message. - * We will do it ourselves instead... - */ - printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n", - dev->name, cmd); - return; - } - - /* Check extra parameters and set extra_len */ - if (descr->header_type == IW_HEADER_TYPE_POINT) { - /* Check if number of token fits within bounds */ - if (wrqu->data.length > descr->max_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length); - return; - } - if (wrqu->data.length < descr->min_tokens) { - printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length); - return; - } - /* Calculate extra_len - extra is NULL for restricted events */ - if (extra != NULL) - extra_len = wrqu->data.length * descr->token_size; - /* Always at an offset in wrqu */ - wrqu_off = IW_EV_POINT_OFF; - } - - /* Total length of the event */ - hdr_len = event_type_size[descr->header_type]; - event_len = hdr_len + extra_len; - - /* Create temporary buffer to hold the event */ - event = kmalloc(event_len, GFP_ATOMIC); - if (event == NULL) - return; - - /* Fill event */ - event->len = event_len; - event->cmd = cmd; - memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN); - if (extra) - memcpy(((char *) event) + hdr_len, extra, extra_len); - - /* Send via the RtNetlink event channel */ - rtmsg_iwinfo(dev, (char *) event, event_len); - - /* Cleanup */ - kfree(event); - - return; /* Always success, I guess ;-) */ -} -EXPORT_SYMBOL(wireless_send_event); - -/********************** ENHANCED IWSPY SUPPORT **********************/ -/* - * In the old days, the driver was handling spy support all by itself. - * Now, the driver can delegate this task to Wireless Extensions. - * It needs to use those standard spy iw_handler in struct iw_handler_def, - * push data to us via wireless_spy_update() and include struct iw_spy_data - * in its private part (and export it in net_device->wireless_data->spy_data). - * One of the main advantage of centralising spy support here is that - * it becomes much easier to improve and extend it without having to touch - * the drivers. One example is the addition of the Spy-Threshold events. - */ - -/* ---------------------------------------------------------------- */ -/* - * Return the pointer to the spy data in the driver. - * Because this is called on the Rx path via wireless_spy_update(), - * we want it to be efficient... - */ -static inline struct iw_spy_data *get_spydata(struct net_device *dev) -{ - /* This is the new way */ - if (dev->wireless_data) - return dev->wireless_data->spy_data; - return NULL; -} - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : set Spy List - */ -int iw_handler_set_spy(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct sockaddr * address = (struct sockaddr *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Disable spy collection while we copy the addresses. - * While we copy addresses, any call to wireless_spy_update() - * will NOP. This is OK, as anyway the addresses are changing. */ - spydata->spy_number = 0; - - /* We want to operate without locking, because wireless_spy_update() - * most likely will happen in the interrupt handler, and therefore - * have its own locking constraints and needs performance. - * The rtnl_lock() make sure we don't race with the other iw_handlers. - * This make sure wireless_spy_update() "see" that the spy list - * is temporarily disabled. */ - smp_wmb(); - - /* Are there are addresses to copy? */ - if (wrqu->data.length > 0) { - int i; - - /* Copy addresses */ - for (i = 0; i < wrqu->data.length; i++) - memcpy(spydata->spy_address[i], address[i].sa_data, - ETH_ALEN); - /* Reset stats */ - memset(spydata->spy_stat, 0, - sizeof(struct iw_quality) * IW_MAX_SPY); - } - - /* Make sure above is updated before re-enabling */ - smp_wmb(); - - /* Enable addresses */ - spydata->spy_number = wrqu->data.length; - - return 0; -} -EXPORT_SYMBOL(iw_handler_set_spy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : get Spy List - */ -int iw_handler_get_spy(struct net_device * dev, - struct iw_request_info * info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct sockaddr * address = (struct sockaddr *) extra; - int i; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - wrqu->data.length = spydata->spy_number; - - /* Copy addresses. */ - for (i = 0; i < spydata->spy_number; i++) { - memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN); - address[i].sa_family = AF_UNIX; - } - /* Copy stats to the user buffer (just after). */ - if (spydata->spy_number > 0) - memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number), - spydata->spy_stat, - sizeof(struct iw_quality) * spydata->spy_number); - /* Reset updated flags. */ - for (i = 0; i < spydata->spy_number; i++) - spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED; - return 0; -} -EXPORT_SYMBOL(iw_handler_get_spy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : set spy threshold - */ -int iw_handler_set_thrspy(struct net_device * dev, - struct iw_request_info *info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct iw_thrspy * threshold = (struct iw_thrspy *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Just do it */ - memcpy(&(spydata->spy_thr_low), &(threshold->low), - 2 * sizeof(struct iw_quality)); - - /* Clear flag */ - memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under)); - - return 0; -} -EXPORT_SYMBOL(iw_handler_set_thrspy); - -/*------------------------------------------------------------------*/ -/* - * Standard Wireless Handler : get spy threshold - */ -int iw_handler_get_thrspy(struct net_device * dev, - struct iw_request_info *info, - union iwreq_data * wrqu, - char * extra) -{ - struct iw_spy_data * spydata = get_spydata(dev); - struct iw_thrspy * threshold = (struct iw_thrspy *) extra; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return -EOPNOTSUPP; - - /* Just do it */ - memcpy(&(threshold->low), &(spydata->spy_thr_low), - 2 * sizeof(struct iw_quality)); - - return 0; -} -EXPORT_SYMBOL(iw_handler_get_thrspy); - -/*------------------------------------------------------------------*/ -/* - * Prepare and send a Spy Threshold event - */ -static void iw_send_thrspy_event(struct net_device * dev, - struct iw_spy_data * spydata, - unsigned char * address, - struct iw_quality * wstats) -{ - union iwreq_data wrqu; - struct iw_thrspy threshold; - - /* Init */ - wrqu.data.length = 1; - wrqu.data.flags = 0; - /* Copy address */ - memcpy(threshold.addr.sa_data, address, ETH_ALEN); - threshold.addr.sa_family = ARPHRD_ETHER; - /* Copy stats */ - memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality)); - /* Copy also thresholds */ - memcpy(&(threshold.low), &(spydata->spy_thr_low), - 2 * sizeof(struct iw_quality)); - - /* Send event to user space */ - wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold); -} - -/* ---------------------------------------------------------------- */ -/* - * Call for the driver to update the spy data. - * For now, the spy data is a simple array. As the size of the array is - * small, this is good enough. If we wanted to support larger number of - * spy addresses, we should use something more efficient... - */ -void wireless_spy_update(struct net_device * dev, - unsigned char * address, - struct iw_quality * wstats) -{ - struct iw_spy_data * spydata = get_spydata(dev); - int i; - int match = -1; - - /* Make sure driver is not buggy or using the old API */ - if (!spydata) - return; - - /* Update all records that match */ - for (i = 0; i < spydata->spy_number; i++) - if (!compare_ether_addr(address, spydata->spy_address[i])) { - memcpy(&(spydata->spy_stat[i]), wstats, - sizeof(struct iw_quality)); - match = i; - } - - /* Generate an event if we cross the spy threshold. - * To avoid event storms, we have a simple hysteresis : we generate - * event only when we go under the low threshold or above the - * high threshold. */ - if (match >= 0) { - if (spydata->spy_thr_under[match]) { - if (wstats->level > spydata->spy_thr_high.level) { - spydata->spy_thr_under[match] = 0; - iw_send_thrspy_event(dev, spydata, - address, wstats); - } - } else { - if (wstats->level < spydata->spy_thr_low.level) { - spydata->spy_thr_under[match] = 1; - iw_send_thrspy_event(dev, spydata, - address, wstats); - } - } - } -} -EXPORT_SYMBOL(wireless_spy_update); |