diff options
Diffstat (limited to 'package/d80211/src')
37 files changed, 0 insertions, 20027 deletions
diff --git a/package/d80211/src/Kconfig b/package/d80211/src/Kconfig deleted file mode 100644 index 7d661632fb..0000000000 --- a/package/d80211/src/Kconfig +++ /dev/null @@ -1,71 +0,0 @@ -config D80211 - tristate "Generic IEEE 802.11 Networking Stack (dscape)" - select CRYPTO - select CRYPTO_ECB - select CRYPTO_ARC4 - select CRYPTO_AES - select WIRELESS_EXT - ---help--- - This option enables the hardware independent IEEE 802.11 - networking stack. - -config D80211_LEDS - bool "Enable LED triggers" - depends on D80211 - select NEW_LEDS - select LEDS_TRIGGERS - ---help--- - This option enables a few LED triggers for different - packet receive/transmit events. - -config D80211_DEBUG - bool "Enable debugging output" - depends on D80211 - ---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 D80211_VERBOSE_DEBUG - bool "Verbose debugging output" - depends on D80211_DEBUG - -config D80211_LOWTX_FRAME_DUMP - bool "Debug frame dumping" - depends on D80211_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 D80211_DEBUG - -config D80211_DEBUG_COUNTERS - bool "Extra statistics for TX/RX debugging" - depends on D80211_DEBUG - -config HOSTAPD_WPA_TESTING - bool "Support for TKIP countermeasures testing" - depends on D80211_DEBUG - -config D80211_IBSS_DEBUG - bool "Support for IBSS testing" - depends on D80211_DEBUG - ---help--- - Say Y here if you intend to debug the IBSS code. - -config D80211_VERBOSE_PS_DEBUG - bool "Verbose powersave mode debugging" - depends on D80211_DEBUG - ---help--- - Say Y here to print out verbose powersave - mode debug messages. diff --git a/package/d80211/src/Makefile b/package/d80211/src/Makefile deleted file mode 100644 index 68a897aa17..0000000000 --- a/package/d80211/src/Makefile +++ /dev/null @@ -1,20 +0,0 @@ -obj-m += 80211.o rc80211_simple.o - -80211-objs := \ - ieee80211.o \ - ieee80211_ioctl.o \ - sta_info.o \ - wep.o \ - wpa.o \ - ieee80211_scan.o \ - ieee80211_sta.o \ - ieee80211_dev.o \ - ieee80211_iface.o \ - ieee80211_rate.o \ - ieee80211_sysfs.o \ - ieee80211_sysfs_sta.o \ - michael.o \ - tkip.o \ - aes_ccm.o \ - wme.o \ - fifo_qdisc.o diff --git a/package/d80211/src/aes_ccm.c b/package/d80211/src/aes_ccm.c deleted file mode 100644 index e3f53727ce..0000000000 --- a/package/d80211/src/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/types.h> -#include <linux/crypto.h> -#include <linux/err.h> -#include <asm/scatterlist.h> - -#include <net/d80211.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 = (data_len + AES_BLOCK_LEN - 1) / 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 = (data_len + AES_BLOCK_LEN - 1) / 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/d80211/src/aes_ccm.h b/package/d80211/src/aes_ccm.h deleted file mode 100644 index 885f19030b..0000000000 --- a/package/d80211/src/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/d80211/src/fifo_qdisc.c b/package/d80211/src/fifo_qdisc.c deleted file mode 100644 index 12aaed57a1..0000000000 --- a/package/d80211/src/fifo_qdisc.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * 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. - * - * If building without CONFIG_NET_SCHED we need a simple - * fifo qdisc to install by default as the sub-qdisc. - * This is a simple replacement for sch_fifo. - */ - -#include <linux/skbuff.h> -#include <net/pkt_sched.h> -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "wme.h" - -static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc* qd) -{ - struct sk_buff_head *q = qdisc_priv(qd); - - if (skb_queue_len(q) > qd->dev->tx_queue_len) { - qd->qstats.drops++; - kfree_skb(skb); - return NET_XMIT_DROP; - } - - skb_queue_tail(q, skb); - qd->q.qlen++; - qd->bstats.bytes += skb->len; - qd->bstats.packets++; - - return NET_XMIT_SUCCESS; -} - - -static int pfifo_requeue(struct sk_buff *skb, struct Qdisc* qd) -{ - struct sk_buff_head *q = qdisc_priv(qd); - - skb_queue_head(q, skb); - qd->q.qlen++; - qd->bstats.bytes += skb->len; - qd->bstats.packets++; - - return NET_XMIT_SUCCESS; -} - - -static struct sk_buff *pfifo_dequeue(struct Qdisc* qd) -{ - struct sk_buff_head *q = qdisc_priv(qd); - - return skb_dequeue(q); -} - - -static int pfifo_init(struct Qdisc* qd, struct rtattr *opt) -{ - struct sk_buff_head *q = qdisc_priv(qd); - - skb_queue_head_init(q); - return 0; -} - - -static void pfifo_reset(struct Qdisc* qd) -{ - struct sk_buff_head *q = qdisc_priv(qd); - - skb_queue_purge(q); - qd->q.qlen = 0; -} - - -static int pfifo_dump(struct Qdisc *qd, struct sk_buff *skb) -{ - return skb->len; -} - - -struct Qdisc_ops pfifo_qdisc_ops = -{ - .next = NULL, - .cl_ops = NULL, - .id = "ieee80211_pfifo", - .priv_size = sizeof(struct sk_buff_head), - - .enqueue = pfifo_enqueue, - .dequeue = pfifo_dequeue, - .requeue = pfifo_requeue, - .drop = NULL, - - .init = pfifo_init, - .reset = pfifo_reset, - .destroy = NULL, - .change = NULL, - - .dump = pfifo_dump, -}; - diff --git a/package/d80211/src/hostapd_ioctl.h b/package/d80211/src/hostapd_ioctl.h deleted file mode 100644 index 559d11c14b..0000000000 --- a/package/d80211/src/hostapd_ioctl.h +++ /dev/null @@ -1,434 +0,0 @@ -/* - * Host AP (software wireless LAN access point) user space daemon for - * Host AP kernel driver - * Copyright 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi> - * 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 HOSTAPD_IOCTL_H -#define HOSTAPD_IOCTL_H - -#ifdef __KERNEL__ -#include <linux/types.h> -#endif /* __KERNEL__ */ - -#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0) -#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1) -#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3) -#define PRISM2_IOCTL_TEST_PARAM (SIOCIWFIRSTPRIV + 4) - -/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes: */ -enum { - PRISM2_PARAM_PTYPE = 1, - PRISM2_PARAM_TXRATECTRL = 2, - PRISM2_PARAM_BEACON_INT = 3, - PRISM2_PARAM_PSEUDO_IBSS = 4, - PRISM2_PARAM_ALC = 5, - PRISM2_PARAM_TXPOWER = 6, - PRISM2_PARAM_DUMP = 7, - PRISM2_PARAM_OTHER_AP_POLICY = 8, - PRISM2_PARAM_AP_MAX_INACTIVITY = 9, - PRISM2_PARAM_AP_BRIDGE_PACKETS = 10, - PRISM2_PARAM_DTIM_PERIOD = 11, - PRISM2_PARAM_AP_NULLFUNC_ACK = 12, - PRISM2_PARAM_MAX_WDS = 13, - PRISM2_PARAM_AP_AUTOM_AP_WDS = 14, - PRISM2_PARAM_AP_AUTH_ALGS = 15, - PRISM2_PARAM_MONITOR_ALLOW_FCSERR = 16, - PRISM2_PARAM_HOST_ENCRYPT = 17, - PRISM2_PARAM_HOST_DECRYPT = 18, - PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19, - PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20, - PRISM2_PARAM_HOST_ROAMING = 21, - PRISM2_PARAM_BCRX_STA_KEY = 22, - PRISM2_PARAM_IEEE_802_1X = 23, - PRISM2_PARAM_ANTSEL_TX = 24, - PRISM2_PARAM_ANTSEL_RX = 25, - PRISM2_PARAM_MONITOR_TYPE = 26, - PRISM2_PARAM_WDS_TYPE = 27, - PRISM2_PARAM_HOSTSCAN = 28, - PRISM2_PARAM_AP_SCAN = 29, - - /* Instant802 additions */ - PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001, - PRISM2_PARAM_DROP_UNENCRYPTED = 1002, - PRISM2_PARAM_PREAMBLE = 1003, - PRISM2_PARAM_RATE_LIMIT = 1004, /* no longer used */ - PRISM2_PARAM_RATE_LIMIT_BURST = 1005, /* no longer used */ - PRISM2_PARAM_SHORT_SLOT_TIME = 1006, - PRISM2_PARAM_TEST_MODE = 1007, - PRISM2_PARAM_NEXT_MODE = 1008, - PRISM2_PARAM_CLEAR_KEYS = 1009, - PRISM2_PARAM_RADIO_ENABLED = 1010, - PRISM2_PARAM_ANTENNA_SEL = 1011, - PRISM2_PARAM_CALIB_INT = 1012, - PRISM2_PARAM_ANTENNA_MODE = 1013, - PRISM2_PARAM_PRIVACY_INVOKED = 1014, - PRISM2_PARAM_BROADCAST_SSID = 1015, - PRISM2_PARAM_STAT_TIME = 1016, - PRISM2_PARAM_STA_ANTENNA_SEL = 1017, - PRISM2_PARAM_FORCE_UNICAST_RATE = 1018, - PRISM2_PARAM_RATE_CTRL_NUM_UP = 1019, - PRISM2_PARAM_RATE_CTRL_NUM_DOWN = 1020, - PRISM2_PARAM_MAX_RATECTRL_RATE = 1021, - PRISM2_PARAM_TX_POWER_REDUCTION = 1022, - PRISM2_PARAM_EAPOL = 1023, - PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024, - PRISM2_PARAM_KEY_INDEX = 1025, - PRISM2_PARAM_DEFAULT_WEP_ONLY = 1026, - PRISM2_PARAM_WIFI_WME_NOACK_TEST = 1033, - PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS = 1034, - PRISM2_PARAM_SCAN_FLAGS = 1035, - PRISM2_PARAM_HW_MODES = 1036, - PRISM2_PARAM_CREATE_IBSS = 1037, - PRISM2_PARAM_WMM_ENABLED = 1038, - PRISM2_PARAM_MIXED_CELL = 1039, - PRISM2_PARAM_KEY_MGMT = 1040, - PRISM2_PARAM_RADAR_DETECT = 1043, - PRISM2_PARAM_SPECTRUM_MGMT = 1044, - PRISM2_PARAM_USER_SPACE_MLME = 1045, - PRISM2_PARAM_MGMT_IF = 1046, - /* NOTE: Please try to coordinate with other active development - * branches before allocating new param numbers so that each new param - * will be unique within all branches and the allocated number will not - * need to be changed when merging new features. Existing numbers in - * the mainline (or main devel branch) must not be changed when merging - * in new features. */ -}; - -/* PRISM2_IOCTL_HOSTAPD ioctl() cmd: */ -enum { - PRISM2_HOSTAPD_FLUSH = 1, - PRISM2_HOSTAPD_ADD_STA = 2, - PRISM2_HOSTAPD_REMOVE_STA = 3, - PRISM2_HOSTAPD_GET_INFO_STA = 4, - /* REMOVED: PRISM2_HOSTAPD_RESET_TXEXC_STA = 5, */ - PRISM2_SET_ENCRYPTION = 6, - PRISM2_GET_ENCRYPTION = 7, - PRISM2_HOSTAPD_SET_FLAGS_STA = 8, - PRISM2_HOSTAPD_GET_RID = 9, - PRISM2_HOSTAPD_SET_RID = 10, - PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR = 11, - PRISM2_HOSTAPD_MLME = 13, - - /* Instant802 additions */ - PRISM2_HOSTAPD_SET_BEACON = 1001, - PRISM2_HOSTAPD_GET_HW_FEATURES = 1002, - PRISM2_HOSTAPD_SCAN = 1003, - PRISM2_HOSTAPD_WPA_TRIGGER = 1004, - PRISM2_HOSTAPD_SET_RATE_SETS = 1005, - PRISM2_HOSTAPD_ADD_IF = 1006, - PRISM2_HOSTAPD_REMOVE_IF = 1007, - PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE = 1008, - PRISM2_HOSTAPD_GET_LOAD_STATS = 1009, - PRISM2_HOSTAPD_SET_STA_VLAN = 1010, - PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM = 1011, - PRISM2_HOSTAPD_SET_CHANNEL_FLAG = 1012, - PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN = 1013, - PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS = 1014, - PRISM2_HOSTAPD_GET_TX_STATS = 1016, - PRISM2_HOSTAPD_UPDATE_IF = 1017, - PRISM2_HOSTAPD_SCAN_REQ = 1019, - PRISM2_STA_GET_STATE = 1020, - PRISM2_HOSTAPD_FLUSH_IFS = 1021, - PRISM2_HOSTAPD_SET_RADAR_PARAMS = 1023, - PRISM2_HOSTAPD_SET_QUIET_PARAMS = 1024, - PRISM2_HOSTAPD_GET_TX_POWER = 1025, - /* NOTE: Please try to coordinate with other active development - * branches before allocating new param numbers so that each new param - * will be unique within all branches and the allocated number will not - * need to be changed when merging new features. Existing numbers in - * the mainline (or main devel branch) must not be changed when merging - * in new features. */ -}; - - /* these definitions mirror the ieee80211_i.h - * IEEE80211_DISABLED, ... IEEE80211_ASSOCIATED enumeration */ -enum { - PRISM2_PARAM_STA_DISABLED, - PRISM2_PARAM_STA_AUTHENTICATE, - PRISM2_PARAM_STA_ASSOCIATE, - PRISM2_PARAM_STA_ASSOCIATED, -}; - -#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048 -#define HOSTAP_CRYPT_ALG_NAME_LEN 16 - -/* Use this to make sure that structure elements are correctly aligned - * for access as other types. Most commonly, this affects the placeholder - * types used for data at the end of a structure in this union. - */ -#ifdef __GNUC__ -#undef ALIGNED -#define ALIGNED __attribute__ ((aligned)) -#else -/* Check if it has been defined elsewhere */ -#ifndef ALIGNED -#error "Must define ALIGNED to generate aligned structure elements" -#endif -#endif - -struct prism2_hostapd_param { - u32 cmd; - u8 sta_addr[ETH_ALEN]; - u8 pad[2]; - union { - struct { - u16 aid; - u16 capability; - u8 supp_rates[32]; - u8 wds_flags; -#define IEEE80211_STA_DYNAMIC_ENC BIT(0) - u8 enc_flags; - u16 listen_interval; - } add_sta; - struct { - u32 inactive_msec; - u32 rx_packets; - u32 tx_packets; - u32 rx_bytes; - u32 tx_bytes; - u32 current_tx_rate; /* in 100 kbps */ - u32 channel_use; - u32 flags; - u32 num_ps_buf_frames; - u32 tx_retry_failed; - u32 tx_retry_count; - u32 last_rssi; - u32 last_ack_rssi; - } get_info_sta; - struct { - char alg[HOSTAP_CRYPT_ALG_NAME_LEN]; - u32 flags; - u32 err; - u8 idx; -#define HOSTAP_SEQ_COUNTER_SIZE 8 - u8 seq_counter[HOSTAP_SEQ_COUNTER_SIZE]; - u16 key_len; - u8 key[0] ALIGNED; - } crypt; - struct { - u32 flags_and; - u32 flags_or; - } set_flags_sta; - struct { - u16 rid; - u16 len; - u8 data[0] ALIGNED; - } rid; - struct { - u16 head_len; - u16 tail_len; - u8 data[0] ALIGNED; /* head_len + tail_len bytes */ - } beacon; - struct { - u16 num_modes; - u16 flags; - u8 data[0] ALIGNED; /* num_modes * feature data */ - } hw_features; - struct { - u8 now; - s8 our_mode_only; - s16 last_rx; - u16 channel; - s16 interval; /* seconds */ - s32 listen; /* microseconds */ - } scan; - struct { -#define WPA_TRIGGER_FAIL_TX_MIC BIT(0) -#define WPA_TRIGGER_FAIL_TX_ICV BIT(1) -#define WPA_TRIGGER_FAIL_RX_MIC BIT(2) -#define WPA_TRIGGER_FAIL_RX_ICV BIT(3) -#define WPA_TRIGGER_TX_REPLAY BIT(4) -#define WPA_TRIGGER_TX_REPLAY_FRAG BIT(5) -#define WPA_TRIGGER_TX_SKIP_SEQ BIT(6) - u32 trigger; - } wpa_trigger; - struct { - u16 mode; /* MODE_* */ - u16 num_supported_rates; - u16 num_basic_rates; - u8 data[0] ALIGNED; /* num_supported_rates * u16 + - * num_basic_rates * u16 */ - } set_rate_sets; - struct { - u8 type; /* WDS, VLAN, etc */ - u8 name[IFNAMSIZ]; - u8 data[0] ALIGNED; - } if_info; - struct dot11_counters { - u32 dot11TransmittedFragmentCount; - u32 dot11MulticastTransmittedFrameCount; - u32 dot11FailedCount; - u32 dot11ReceivedFragmentCount; - u32 dot11MulticastReceivedFrameCount; - u32 dot11FCSErrorCount; - u32 dot11TransmittedFrameCount; - u32 dot11WEPUndecryptableCount; - u32 dot11ACKFailureCount; - u32 dot11RTSFailureCount; - u32 dot11RTSSuccessCount; - } dot11CountersTable; - struct { -#define LOAD_STATS_CLEAR BIT(1) - u32 flags; - u32 channel_use; - } get_load_stats; - struct { - char vlan_name[IFNAMSIZ]; - int vlan_id; - } set_sta_vlan; - struct { - u8 len; - u8 data[0] ALIGNED; - } set_generic_info_elem; - struct { - u16 mode; /* MODE_* */ - u16 chan; - u32 flag; - u8 power_level; /* regulatory limit in dBm */ - u8 antenna_max; - } set_channel_flag; - struct { - u32 rd; - } set_regulatory_domain; - struct { - u32 queue; - s32 aifs; - u32 cw_min; - u32 cw_max; - u32 burst_time; /* maximum burst time in 0.1 ms, i.e., - * 10 = 1 ms */ - } tx_queue_params; - struct { - u32 bss_count; - u8 bssid_mask[ETH_ALEN]; - } set_bss; - struct ieee80211_tx_stats { - struct { - unsigned int len; /* num packets in queue */ - unsigned int limit; /* queue len (soft) limit - */ - unsigned int count; /* total num frames sent */ - } data[4]; - } get_tx_stats; - struct { - u8 ssid_len; - u8 ssid[0] ALIGNED; - } scan_req; - struct { - u32 state; - } sta_get_state; - struct { -#define MLME_STA_DEAUTH 0 -#define MLME_STA_DISASSOC 1 - u16 cmd; - u16 reason_code; - } mlme; - struct { - u8 radar_firpwr_threshold; - u8 radar_rssi_threshold; - u8 pulse_height_threshold; - u8 pulse_rssi_threshold; - u8 pulse_inband_threshold; - } radar; - struct { - unsigned int period; - unsigned int offset; - unsigned int duration; - } quiet; - struct { - unsigned int tx_power_min; - unsigned int tx_power_max; - } tx_power; - struct { - u8 dummy[80]; /* Make sizeof() this struct large enough - * with some compiler versions. */ - } dummy; - } u; -}; - - -#ifndef IEEE80211_TX_QUEUE_NUMS -#define IEEE80211_TX_QUEUE_NUMS -/* TODO: these need to be synchronized with ieee80211.h; make a shared header - * file that can be included into low-level drivers, 80211.o, and hostapd */ -/* tx_queue_params - queue */ -enum { - IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */ - IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */ - IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */ - IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */ - IEEE80211_TX_QUEUE_DATA4 = 4, - IEEE80211_TX_QUEUE_AFTER_BEACON = 6, - IEEE80211_TX_QUEUE_BEACON = 7 -}; -#endif /* IEEE80211_TX_QUEUE_NUMS */ - - -#define HOSTAP_CRYPT_FLAG_SET_TX_KEY BIT(0) -#define HOSTAP_CRYPT_FLAG_PERMANENT BIT(1) - -#define HOSTAP_CRYPT_ERR_UNKNOWN_ALG 2 -#define HOSTAP_CRYPT_ERR_UNKNOWN_ADDR 3 -#define HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED 4 -#define HOSTAP_CRYPT_ERR_KEY_SET_FAILED 5 -#define HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED 6 -#define HOSTAP_CRYPT_ERR_CARD_CONF_FAILED 7 - -#define HOSTAP_HW_FLAG_NULLFUNC_OK BIT(0) - -enum { - IEEE80211_KEY_MGMT_NONE = 0, - IEEE80211_KEY_MGMT_IEEE8021X = 1, - IEEE80211_KEY_MGMT_WPA_PSK = 2, - IEEE80211_KEY_MGMT_WPA_EAP = 3, -}; - - -/* Data structures used for get_hw_features ioctl */ -struct hostapd_ioctl_hw_modes_hdr { - int mode; - int num_channels; - int num_rates; -}; - -struct ieee80211_channel_data { - short chan; /* channel number (IEEE 802.11) */ - short freq; /* frequency in MHz */ - int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */ -}; - -struct ieee80211_rate_data { - int rate; /* rate in 100 kbps */ - int flags; /* IEEE80211_RATE_ flags */ -}; - - -/* ADD_IF, REMOVE_IF, and UPDATE_IF 'type' argument */ -enum { - HOSTAP_IF_WDS = 1, HOSTAP_IF_VLAN = 2, HOSTAP_IF_BSS = 3, - HOSTAP_IF_STA = 4 -}; - -struct hostapd_if_wds { - u8 remote_addr[ETH_ALEN]; -}; - -struct hostapd_if_vlan { - u8 id; -}; - -struct hostapd_if_bss { - u8 bssid[ETH_ALEN]; -}; - -struct hostapd_if_sta { -}; - -#endif /* HOSTAPD_IOCTL_H */ diff --git a/package/d80211/src/ieee80211.c b/package/d80211/src/ieee80211.c deleted file mode 100644 index 7353ed3438..0000000000 --- a/package/d80211/src/ieee80211.c +++ /dev/null @@ -1,4843 +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 <net/d80211.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 <net/iw_handler.h> -#include <linux/compiler.h> -#include <linux/bitmap.h> - -#include "ieee80211_common.h" -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "wep.h" -#include "wpa.h" -#include "tkip.h" -#include "wme.h" -#include "aes_ccm.h" -#include "ieee80211_led.h" - -/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */ -/* Ethernet-II snap header (RFC1042 for most EtherTypes) */ -static unsigned char rfc1042_header[] = -{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; -/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */ -static unsigned char bridge_tunnel_header[] = -{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 }; -/* No encapsulation header if EtherType < 0x600 (=length) */ - -static unsigned char eapol_header[] = -{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e }; - - -static u8 * ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len); - -static int ieee80211_mgmt_start_xmit(struct sk_buff *skb, - struct net_device *dev); - -struct ieee80211_key_conf * -ieee80211_key_data2conf(struct ieee80211_local *local, - struct ieee80211_key *data) -{ - struct ieee80211_key_conf *conf; - - conf = kmalloc(sizeof(*conf) + data->keylen, GFP_ATOMIC); - if (!conf) - return NULL; - - conf->hw_key_idx = data->hw_key_idx; - conf->alg = data->alg; - conf->keylen = data->keylen; - conf->flags = 0; - if (data->force_sw_encrypt) - conf->flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; - conf->keyidx = data->keyidx; - if (data->default_tx_key) - conf->flags |= IEEE80211_KEY_DEFAULT_TX_KEY; - if (local->default_wep_only) - conf->flags |= IEEE80211_KEY_DEFAULT_WEP_ONLY; - memcpy(conf->key, data->key, data->keylen); - - return conf; -} - -struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, - int idx, size_t key_len, gfp_t flags) -{ - struct ieee80211_key *key; - int res; - - key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags); - if (!key) - return NULL; - if (sdata) - res = kobject_set_name(&key->kobj, "%d", idx); - else - res = kobject_set_name(&key->kobj, "key"); - if (res) { - kfree(key); - return NULL; - } - ieee80211_key_sysfs_set_kset(key, sdata ? &sdata->key_kset : NULL); - kobject_init(&key->kobj); - return key; -} - -void ieee80211_key_free(struct ieee80211_key *key) -{ - if (key) - kobject_put(&key->kobj); -} - -void ieee80211_key_release(struct kobject *kobj) -{ - struct ieee80211_key *key; - - key = container_of(kobj, struct ieee80211_key, kobj); - if (key->alg == ALG_CCMP) - ieee80211_aes_key_free(key->u.ccmp.tfm); - kfree(key); -} - -static int rate_list_match(int *rate_list, int rate) -{ - int i; - - if (!rate_list) - return 0; - - for (i = 0; rate_list[i] >= 0; i++) - if (rate_list[i] == rate) - return 1; - - return 0; -} - - -void ieee80211_prepare_rates(struct ieee80211_local *local) -{ - int i; - - for (i = 0; i < local->num_curr_rates; i++) { - struct ieee80211_rate *rate = &local->curr_rates[i]; - - rate->flags &= ~(IEEE80211_RATE_SUPPORTED | - IEEE80211_RATE_BASIC); - - if (local->supp_rates[local->hw.conf.phymode]) { - if (!rate_list_match(local->supp_rates - [local->hw.conf.phymode], - rate->rate)) - continue; - } - - rate->flags |= IEEE80211_RATE_SUPPORTED; - - /* Use configured basic rate set if it is available. If not, - * use defaults that are sane for most cases. */ - if (local->basic_rates[local->hw.conf.phymode]) { - if (rate_list_match(local->basic_rates - [local->hw.conf.phymode], - rate->rate)) - rate->flags |= IEEE80211_RATE_BASIC; - } else switch (local->hw.conf.phymode) { - case MODE_IEEE80211A: - if (rate->rate == 60 || rate->rate == 120 || - rate->rate == 240) - rate->flags |= IEEE80211_RATE_BASIC; - break; - case MODE_IEEE80211B: - if (rate->rate == 10 || rate->rate == 20) - rate->flags |= IEEE80211_RATE_BASIC; - break; - case MODE_ATHEROS_TURBO: - if (rate->rate == 120 || rate->rate == 240 || - rate->rate == 480) - rate->flags |= IEEE80211_RATE_BASIC; - break; - case MODE_IEEE80211G: - if (rate->rate == 10 || rate->rate == 20 || - rate->rate == 55 || rate->rate == 110) - rate->flags |= IEEE80211_RATE_BASIC; - break; - } - - /* Set ERP and MANDATORY flags based on phymode */ - switch (local->hw.conf.phymode) { - case MODE_IEEE80211A: - if (rate->rate == 60 || rate->rate == 120 || - rate->rate == 240) - rate->flags |= IEEE80211_RATE_MANDATORY; - break; - case MODE_IEEE80211B: - if (rate->rate == 10) - rate->flags |= IEEE80211_RATE_MANDATORY; - break; - case MODE_ATHEROS_TURBO: - break; - case MODE_IEEE80211G: - if (rate->rate == 10 || rate->rate == 20 || - rate->rate == 55 || rate->rate == 110 || - rate->rate == 60 || rate->rate == 120 || - rate->rate == 240) - rate->flags |= IEEE80211_RATE_MANDATORY; - if (rate->rate != 10 && rate->rate != 20 && - rate->rate != 55 && rate->rate != 110) - rate->flags |= IEEE80211_RATE_ERP; - break; - } - } -} - - -static void ieee80211_key_threshold_notify(struct net_device *dev, - struct ieee80211_key *key, - struct sta_info *sta) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sk_buff *skb; - struct ieee80211_msg_key_notification *msg; - - /* if no one will get it anyway, don't even allocate it. - * unlikely because this is only relevant for APs - * where the device must be open... */ - if (unlikely(!local->apdev)) - return; - - skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) + - sizeof(struct ieee80211_msg_key_notification)); - if (!skb) - return; - - skb_reserve(skb, sizeof(struct ieee80211_frame_info)); - msg = (struct ieee80211_msg_key_notification *) - skb_put(skb, sizeof(struct ieee80211_msg_key_notification)); - msg->tx_rx_count = key->tx_rx_count; - memcpy(msg->ifname, dev->name, IFNAMSIZ); - if (sta) - memcpy(msg->addr, sta->addr, ETH_ALEN); - else - memset(msg->addr, 0xff, ETH_ALEN); - - key->tx_rx_count = 0; - - ieee80211_rx_mgmt(local, skb, NULL, - ieee80211_msg_key_threshold_notification); -} - - -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 */ - if (fc & IEEE80211_STYPE_QOS_DATA) - hdrlen += 2; /* QoS Control Field */ - break; - case IEEE80211_FTYPE_CTL: - switch (fc & IEEE80211_FCTL_STYPE) { - case IEEE80211_STYPE_CTS: - case IEEE80211_STYPE_ACK: - hdrlen = 10; - break; - default: - hdrlen = 16; - break; - } - break; - } - - return hdrlen; -} -EXPORT_SYMBOL(ieee80211_get_hdrlen); - -int ieee80211_get_hdrlen_from_skb(struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (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); - -#ifdef CONFIG_D80211_LOWTX_FRAME_DUMP -static void ieee80211_dump_frame(const char *ifname, const char *title, - struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - - 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=" MAC_FMT, MAC_ARG(hdr->addr1)); - if (hdrlen >= 16) - printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2)); - if (hdrlen >= 24) - printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3)); - if (hdrlen >= 30) - printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4)); - printk("\n"); -} -#else /* CONFIG_D80211_LOWTX_FRAME_DUMP */ -static inline void ieee80211_dump_frame(const char *ifname, const char *title, - struct sk_buff *skb) -{ -} -#endif /* CONFIG_D80211_LOWTX_FRAME_DUMP */ - - -static int ieee80211_is_eapol(struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr; - u16 fc; - int hdrlen; - - if (unlikely(skb->len < 10)) - return 0; - - hdr = (struct ieee80211_hdr *) skb->data; - fc = le16_to_cpu(hdr->frame_control); - - if (unlikely(!WLAN_FC_DATA_PRESENT(fc))) - return 0; - - hdrlen = ieee80211_get_hdrlen(fc); - - if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) && - memcmp(skb->data + hdrlen, eapol_header, - sizeof(eapol_header)) == 0)) - return 1; - - return 0; -} - - -static ieee80211_txrx_result -ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx) -{ - struct rate_control_extra extra; - - memset(&extra, 0, sizeof(extra)); - extra.mgmt_data = tx->sdata && - tx->sdata->type == IEEE80211_IF_TYPE_MGMT; - extra.ethertype = tx->ethertype; - extra.startidx = 0; - extra.endidx = tx->local->num_curr_rates; - - tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev, tx->skb, - &extra); - if (unlikely(extra.probe != NULL)) { - tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE; - tx->u.tx.probe_last_frag = 1; - tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val; - tx->u.tx.rate = extra.probe; - } else { - tx->u.tx.control->alt_retry_rate = -1; - } - if (!tx->u.tx.rate) - return TXRX_DROP; - if (tx->local->hw.conf.phymode == MODE_IEEE80211G && - tx->local->cts_protect_erp_frames && tx->fragmented && - extra.nonerp) { - tx->u.tx.last_frag_rate = tx->u.tx.rate; - tx->u.tx.last_frag_rateidx = extra.rateidx; - tx->u.tx.probe_last_frag = extra.probe ? 1 : 0; - - tx->u.tx.rate = extra.nonerp; - tx->u.tx.control->rateidx = extra.nonerp_idx; - tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE; - } else { - tx->u.tx.last_frag_rate = tx->u.tx.rate; - tx->u.tx.last_frag_rateidx = extra.rateidx; - tx->u.tx.control->rateidx = extra.rateidx; - } - tx->u.tx.control->tx_rate = tx->u.tx.rate->val; - if ((tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) && - tx->local->short_preamble && - (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) { - tx->u.tx.short_preamble = 1; - tx->u.tx.control->tx_rate = tx->u.tx.rate->val2; - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) -{ - if (tx->sta) - tx->u.tx.control->key_idx = tx->sta->key_idx_compression; - else - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - - if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) - tx->key = NULL; - else if (tx->sta && tx->sta->key) - tx->key = tx->sta->key; - else if (tx->sdata->default_key) - tx->key = tx->sdata->default_key; - else if (tx->sdata->drop_unencrypted && - !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) { - I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); - return TXRX_DROP; - } else - tx->key = NULL; - - if (tx->key) { - tx->key->tx_rx_count++; - if (unlikely(tx->local->key_tx_rx_threshold && - tx->key->tx_rx_count > - tx->local->key_tx_rx_threshold)) { - ieee80211_key_threshold_notify(tx->dev, tx->key, - tx->sta); - } - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_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; - u8 *pos; - int frag_threshold = tx->local->fragmentation_threshold; - - if (!tx->fragmented) - return TXRX_CONTINUE; - - first = tx->skb; - - hdrlen = ieee80211_get_hdrlen(tx->fc); - payload_len = first->len - hdrlen; - per_fragm = frag_threshold - hdrlen - FCS_LEN; - num_fragm = (payload_len + per_fragm - 1) / 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); - 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 */ -#define IEEE80211_ENCRYPT_HEADROOM 8 -#define IEEE80211_ENCRYPT_TAILROOM 12 - frag = frags[i] = - dev_alloc_skb(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, 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(i + 1); - 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 TXRX_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 TXRX_DROP; -} - - -static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb) -{ - if (tx->key->force_sw_encrypt) { - if (ieee80211_wep_encrypt(tx->local, skb, tx->key)) - return -1; - } else { - tx->u.tx.control->key_idx = tx->key->hw_key_idx; - if (tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) { - if (ieee80211_wep_add_iv(tx->local, skb, tx->key) == - NULL) - return -1; - } - } - return 0; -} - - -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); - } - } -} - - -static ieee80211_txrx_result -ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc; - - fc = le16_to_cpu(hdr->frame_control); - - if (!tx->key || tx->key->alg != ALG_WEP || - ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA && - ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))) - return TXRX_CONTINUE; - - 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 TXRX_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 TXRX_DROP; - } - } - } - - return TXRX_CONTINUE; -} - - -static inline int ceiling_div(int dividend, int divisor) -{ - return ((dividend + divisor - 1) / divisor); -} - - -static 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 - * ceiling_div() operations. - */ - - if (local->hw.conf.phymode == MODE_IEEE80211A || erp || - local->hw.conf.phymode == MODE_ATHEROS_TURBO) { - /* - * 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 - */ - /* FIX: Atheros Turbo may have different (shorter) duration? */ - 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 * ceiling_div((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 += ceiling_div(8 * (len + 4) * 10, rate); - } - - return dur; -} - - -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; - - erp = txrate->flags & IEEE80211_RATE_ERP; - - /* - * 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; - mrate = 10; /* use 1 Mbps if everything fails */ - for (i = 0; i < local->num_curr_rates; i++) { - struct ieee80211_rate *r = &local->curr_rates[i]; - if (r->rate > txrate->rate) - break; - - if (IEEE80211_RATE_MODULATION(txrate->flags) != - IEEE80211_RATE_MODULATION(r->flags)) - continue; - - if (r->flags & IEEE80211_RATE_BASIC) - rate = r->rate; - else if (r->flags & IEEE80211_RATE_MANDATORY) - mrate = r->rate; - } - 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, - local->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->rate, erp, - local->short_preamble); - } - - return dur; -} - - -static ieee80211_txrx_result -ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 dur; - struct ieee80211_tx_control *control = tx->u.tx.control; - - 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->retry_limit = - tx->local->long_retry_limit; - } else { - control->retry_limit = - tx->local->short_retry_limit; - } - } else { - control->retry_limit = 1; - } - - if (tx->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 = -1; - } - - /* 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->local->hw.conf.phymode == MODE_IEEE80211G && - (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) && - tx->u.tx.unicast && - tx->local->cts_protect_erp_frames && - !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS)) - control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT; - - /* 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->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_rate *rate; - int erp = tx->u.tx.rate->flags & IEEE80211_RATE_ERP; - - /* Do not use multiple retry rates when using RTS/CTS */ - control->alt_retry_rate = -1; - - /* Use min(data rate, max base rate) as CTS/RTS rate */ - rate = tx->u.tx.rate; - while (rate > tx->local->curr_rates && - !(rate->flags & IEEE80211_RATE_BASIC)) - rate--; - - if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS) - dur += ieee80211_frame_duration(tx->local, 10, - rate->rate, erp, - tx->local-> - short_preamble); - dur += ieee80211_frame_duration(tx->local, tx->skb->len, - tx->u.tx.rate->rate, erp, - tx->u.tx.short_preamble); - control->rts_cts_duration = dur; - control->rts_cts_rate = rate->val; - } - - 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; - } - } - } - tx->local->scan.txrx_count++; - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx) -{ -#ifdef CONFIG_D80211_VERBOSE_DEBUG - struct sk_buff *skb = tx->skb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - u32 sta_flags; - - if (unlikely(tx->local->sta_scanning != 0) && - ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ)) - return TXRX_DROP; - - if (tx->u.tx.ps_buffered) - return TXRX_CONTINUE; - - sta_flags = tx->sta ? tx->sta->flags : 0; - - if (likely(tx->u.tx.unicast)) { - if (unlikely(!(sta_flags & WLAN_STA_ASSOC) && - tx->sdata->type != IEEE80211_IF_TYPE_IBSS && - (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) { -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: dropped data frame to not " - "associated station " MAC_FMT "\n", - tx->dev->name, MAC_ARG(hdr->addr1)); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc); - return TXRX_DROP; - } - } else { - if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - tx->local->num_sta == 0 && - !tx->local->allow_broadcast_always && - tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) { - /* - * No associated STAs - no need to send multicast - * frames. - */ - return TXRX_DROP; - } - return TXRX_CONTINUE; - } - - if (unlikely(!tx->u.tx.mgmt_interface && tx->sdata->ieee802_1x && - !(sta_flags & WLAN_STA_AUTHORIZED))) { -#ifdef CONFIG_D80211_DEBUG - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) tx->skb->data; - printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT - " (unauthorized port)\n", tx->dev->name, - MAC_ARG(hdr->addr1)); -#endif - I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port); - return TXRX_DROP; - } - - return TXRX_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; - - spin_lock_bh(&local->sub_if_lock); - list_for_each_entry(sdata, &local->sub_if_list, list) { - struct ieee80211_if_ap *ap; - if (sdata->dev == local->mdev || - sdata->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); - } - spin_unlock_bh(&local->sub_if_lock); - - spin_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); - } - spin_unlock_bh(&local->sta_lock); - - local->total_ps_buffered = total; - printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n", - local->mdev->name, purged); -} - - -static inline ieee80211_txrx_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 */ - if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) && - tx->sdata->type != IEEE80211_IF_TYPE_WDS && - tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) && - !(tx->fc & IEEE80211_FCTL_ORDER)) { - 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 TXRX_QUEUED; - } - - return TXRX_CONTINUE; -} - - -static inline ieee80211_txrx_result -ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx) -{ - struct sta_info *sta = tx->sta; - - if (unlikely(!sta || - ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && - (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP))) - return TXRX_CONTINUE; - - if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) { - struct ieee80211_tx_packet_data *pkt_data; -#ifdef CONFIG_D80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries " - "before %d)\n", - MAC_ARG(sta->addr), sta->aid, - skb_queue_len(&sta->ps_tx_buf)); -#endif /* CONFIG_D80211_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 " MAC_FMT " TX " - "buffer full - dropping oldest frame\n", - tx->dev->name, MAC_ARG(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 TXRX_QUEUED; - } -#ifdef CONFIG_D80211_VERBOSE_PS_DEBUG - else if (unlikely(sta->flags & WLAN_STA_PS)) { - printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll " - "set -> send frame\n", tx->dev->name, - MAC_ARG(sta->addr)); - } -#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */ - sta->pspoll = 0; - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx) -{ - if (unlikely(tx->u.tx.ps_buffered)) - return TXRX_CONTINUE; - - if (tx->u.tx.unicast) - return ieee80211_tx_h_unicast_ps_buf(tx); - else - return ieee80211_tx_h_multicast_ps_buf(tx); -} - - -static void inline -__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 = dev->ieee80211_ptr; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - 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->sta = sta_info_get(local, hdr->addr1); - tx->fc = le16_to_cpu(hdr->frame_control); - control->power_level = local->hw.conf.power_level; - tx->u.tx.control = control; - tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1); - if (is_multicast_ether_addr(hdr->addr1)) - control->flags |= IEEE80211_TXCTL_NO_ACK; - else - control->flags &= ~IEEE80211_TXCTL_NO_ACK; - tx->fragmented = local->fragmentation_threshold < - IEEE80211_MAX_FRAG_THRESHOLD && tx->u.tx.unicast && - skb->len + FCS_LEN > local->fragmentation_threshold && - (!local->ops->set_frag_threshold); - 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; - } - control->antenna_sel = local->hw.conf.antenna_sel; - if (local->sta_antenna_sel != STA_ANTENNA_SEL_AUTO && tx->sta) - control->antenna_sel = tx->sta->antenna_sel; - 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; - -} - -static int inline is_ieee80211_device(struct net_device *dev, - struct net_device *master) -{ - return (dev->ieee80211_ptr == master->ieee80211_ptr); -} - -/* Device in tx->dev has a reference added; use dev_put(tx->dev) when - * finished with it. */ -static void inline 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(pkt_data->ifindex); - if (unlikely(dev && !is_ieee80211_device(dev, mdev))) { - dev_put(dev); - dev = NULL; - } - if (unlikely(!dev)) { - printk(KERN_WARNING "%s: NULL ifindex in pkt_data\n", - mdev->name); - dev = mdev; - dev_hold(dev); - } - __ieee80211_tx_prepare(tx, skb, dev, control); -} - -static inline int __ieee80211_queue_stopped(struct ieee80211_local *local, - int queue) -{ - return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]); -} - -static inline int __ieee80211_queue_pending(struct ieee80211_local *local, - int queue) -{ - return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]); -} - -#define IEEE80211_TX_OK 0 -#define IEEE80211_TX_AGAIN 1 -#define IEEE80211_TX_FRAG_AGAIN 2 - -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 (skb) { - ieee80211_dump_frame(local->mdev->name, "TX to low-level driver", skb); - ret = local->ops->tx(local_to_hw(local), skb, control); - if (ret) - return IEEE80211_TX_AGAIN; - 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_hwrate; - control->rateidx = tx->u.tx.last_frag_rateidx; - if (tx->u.tx.probe_last_frag) - control->flags |= - IEEE80211_TXCTL_RATE_CTRL_PROBE; - else - control->flags &= - ~IEEE80211_TXCTL_RATE_CTRL_PROBE; - } - - ieee80211_dump_frame(local->mdev->name, - "TX to low-level driver", skb); - ret = local->ops->tx(local_to_hw(local), - tx->u.tx.extra_frag[i], - control); - if (ret) - return IEEE80211_TX_FRAG_AGAIN; - 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, int mgmt) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - ieee80211_tx_handler *handler; - struct ieee80211_txrx_data tx; - ieee80211_txrx_result res = TXRX_DROP; - int ret, i; - - WARN_ON(__ieee80211_queue_pending(local, control->queue)); - - if (unlikely(skb->len < 10)) { - dev_kfree_skb(skb); - return 0; - } - - __ieee80211_tx_prepare(&tx, skb, dev, control); - sta = tx.sta; - tx.u.tx.mgmt_interface = mgmt; - - for (handler = local->tx_handlers; *handler != NULL; handler++) { - res = (*handler)(&tx); - if (res != TXRX_CONTINUE) - break; - } - - skb = tx.skb; /* handlers are allowed to change skb */ - - if (sta) - sta_info_put(sta); - - if (unlikely(res == TXRX_DROP)) { - I802_DEBUG_INC(local->tx_handlers_drop); - goto drop; - } - - if (unlikely(res == TXRX_QUEUED)) { - I802_DEBUG_INC(local->tx_handlers_queued); - 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; - tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val; - } - 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_hwrate = tx.u.tx.last_frag_hwrate; - store->last_frag_rateidx = tx.u.tx.last_frag_rateidx; - store->last_frag_rate_ctrl_probe = tx.u.tx.probe_last_frag; - } - 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); - return 0; -} - -static 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_hwrate = store->last_frag_hwrate; - tx.u.tx.last_frag_rateidx = store->last_frag_rateidx; - tx.u.tx.probe_last_frag = store->last_frag_rate_ctrl_probe; - 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) - netif_schedule(dev); -} - -static 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]); - } -} - -static 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 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(pkt_data->ifindex); - if (unlikely(odev && !is_ieee80211_device(odev, dev))) { - dev_put(odev); - odev = NULL; - } - if (unlikely(!odev)) { -#ifdef CONFIG_D80211_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); - - control.ifindex = odev->ifindex; - control.type = osdata->type; - if (pkt_data->req_tx_status) - control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS; - if (pkt_data->do_not_encrypt) - control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - if (pkt_data->requeue) - control.flags |= IEEE80211_TXCTL_REQUEUE; - control.queue = pkt_data->queue; - - ret = ieee80211_tx(odev, skb, &control, - control.type == IEEE80211_IF_TYPE_MGMT); - dev_put(odev); - - return ret; -} - - -/** - * 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). - */ -static int ieee80211_subif_start_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - struct ieee80211_local *local = 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; - u8 *encaps_data; - int encaps_len, skip_header_bytes; - int nh_pos, h_pos, no_encrypt = 0; - struct sta_info *sta; - - 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->nh.raw - skb->data; - h_pos = skb->h.raw - skb->data; - - /* convert Ethernet header to proper 802.11 header (based on - * operation mode) */ - ethertype = (skb->data[12] << 8) | skb->data[13]; - /* TODO: handling for 802.1x authorized/unauthorized port */ - fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA; - - if (likely(sdata->type == IEEE80211_IF_TYPE_AP || - sdata->type == 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; - } else if (sdata->type == 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; - } else if (sdata->type == 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; - } else if (sdata->type == 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; - } else { - ret = 0; - goto fail; - } - - /* receiver is QoS enabled, use a QoS type frame */ - sta = sta_info_get(local, hdr.addr1); - if (sta) { - if (sta->flags & WLAN_STA_WME) { - fc |= IEEE80211_STYPE_QOS_DATA; - hdrlen += 2; - } - sta_info_put(sta); - } - - 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->hw.extra_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; - } - 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 = sdata->dev->ifindex; - pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT); - pkt_data->do_not_encrypt = no_encrypt; - - skb->dev = local->mdev; - sdata->stats.tx_packets++; - sdata->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->mac.raw = skb->data; - skb->nh.raw = skb->data + nh_pos; - skb->h.raw = skb->data + h_pos; - - dev_queue_xmit(skb); - - return 0; - - fail: - if (!ret) - dev_kfree_skb(skb); - - return ret; -} - - -/* - * This is the transmit routine for the 802.11 type interfaces - * called by upper layers of the linux networking - * stack when it has a frame to transmit - */ -static int -ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_tx_packet_data *pkt_data; - struct ieee80211_hdr *hdr; - u16 fc; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (skb->len < 10) { - dev_kfree_skb(skb); - return 0; - } - - hdr = (struct ieee80211_hdr *) skb->data; - fc = le16_to_cpu(hdr->frame_control); - - 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; - pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT); - - skb->priority = 20; /* use hardcoded priority for mgmt TX queue */ - skb->dev = sdata->local->mdev; - - /* - * We're using the protocol field of the the frame control header - * to request TX callback for hostapd. BIT(1) is checked. - */ - if ((fc & BIT(1)) == BIT(1)) { - pkt_data->req_tx_status = 1; - fc &= ~BIT(1); - hdr->frame_control = cpu_to_le16(fc); - } - - pkt_data->do_not_encrypt = !(fc & IEEE80211_FCTL_PROTECTED); - - sdata->stats.tx_packets++; - sdata->stats.tx_bytes += skb->len; - - dev_queue_xmit(skb); - - return 0; -} - - -static void ieee80211_beacon_add_tim(struct ieee80211_local *local, - struct ieee80211_if_ap *bss, - struct sk_buff *skb) -{ - 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. */ - spin_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 = bss->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++ = bss->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 */ - } - spin_unlock_bh(&local->sta_lock); -} - - -struct sk_buff * ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id, - 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 ieee80211_rate *rate; - struct rate_control_extra extra; - u8 *b_head, *b_tail; - int bh_len, bt_len; - - bdev = dev_get_by_index(if_id); - if (bdev) { - sdata = IEEE80211_DEV_TO_SUB_IF(bdev); - ap = &sdata->u.ap; - dev_put(bdev); - } - - if (!ap || sdata->type != IEEE80211_IF_TYPE_AP || - !ap->beacon_head) { -#ifdef CONFIG_D80211_VERBOSE_DEBUG - if (net_ratelimit()) - printk(KERN_DEBUG "no beacon data avail for idx=%d " - "(%s)\n", if_id, bdev ? bdev->name : "N/A"); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - return NULL; - } - - /* Assume we are generating the normal beacon locally */ - b_head = ap->beacon_head; - b_tail = ap->beacon_tail; - bh_len = ap->beacon_head_len; - bt_len = ap->beacon_tail_len; - - skb = dev_alloc_skb(bh_len + bt_len + 256 /* maximum TIM len */); - if (!skb) - return NULL; - - memcpy(skb_put(skb, bh_len), b_head, bh_len); - - ieee80211_beacon_add_tim(local, ap, skb); - - if (b_tail) { - memcpy(skb_put(skb, bt_len), b_tail, bt_len); - } - - if (control) { - memset(&extra, 0, sizeof(extra)); - extra.endidx = local->num_curr_rates; - - rate = rate_control_get_rate(local, local->mdev, skb, &extra); - if (!rate) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate " - "found\n", local->mdev->name); - } - dev_kfree_skb(skb); - return NULL; - } - - control->tx_rate = (local->short_preamble && - (rate->flags & IEEE80211_RATE_PREAMBLE2)) ? - rate->val2 : rate->val; - control->antenna_sel = local->hw.conf.antenna_sel; - control->power_level = local->hw.conf.power_level; - control->flags |= IEEE80211_TXCTL_NO_ACK; - control->retry_limit = 1; - control->rts_cts_duration = 0; - control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK; - } - - ap->num_beacons++; - return skb; -} -EXPORT_SYMBOL(ieee80211_beacon_get); - -struct sk_buff * -ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id, - 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_txrx_result res = TXRX_DROP; - struct net_device *bdev; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_ap *bss = NULL; - - bdev = dev_get_by_index(if_id); - if (bdev) { - sdata = IEEE80211_DEV_TO_SUB_IF(bdev); - bss = &sdata->u.ap; - dev_put(bdev); - } - if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head) - return NULL; - - if (bss->dtim_count != 0) - return NULL; /* send buffered bc/mc only after DTIM beacon */ - skb = skb_dequeue(&bss->ps_bc_buf); - memset(control, 0, sizeof(*control)); - 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); - } - - ieee80211_tx_prepare(&tx, skb, local->mdev, control); - sta = tx.sta; - tx.u.tx.ps_buffered = 1; - - for (handler = local->tx_handlers; *handler != NULL; handler++) { - res = (*handler)(&tx); - if (res == TXRX_DROP || res == TXRX_QUEUED) - break; - } - dev_put(tx.dev); - skb = tx.skb; /* handlers are allowed to change skb */ - - if (res == TXRX_DROP) { - I802_DEBUG_INC(local->tx_handlers_drop); - dev_kfree_skb(skb); - skb = NULL; - } else if (res == TXRX_QUEUED) { - I802_DEBUG_INC(local->tx_handlers_queued); - skb = NULL; - } - - if (sta) - sta_info_put(sta); - - return skb; -} -EXPORT_SYMBOL(ieee80211_get_buffered_bc); - -static int __ieee80211_if_config(struct net_device *dev, - struct sk_buff *beacon) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = 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->type; - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->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; - conf.generic_elem = sdata->u.sta.extra_ie; - conf.generic_elem_len = sdata->u.sta.extra_ie_len; - } else if (sdata->type == IEEE80211_IF_TYPE_AP) { - conf.ssid = sdata->u.ap.ssid; - conf.ssid_len = sdata->u.ap.ssid_len; - conf.generic_elem = sdata->u.ap.generic_elem; - conf.generic_elem_len = sdata->u.ap.generic_elem_len; - conf.beacon = beacon; - } - return local->ops->config_interface(local_to_hw(local), - dev->ifindex, &conf); -} - -int ieee80211_if_config(struct net_device *dev) -{ - return __ieee80211_if_config(dev, NULL); -} - -int ieee80211_if_config_beacon(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sk_buff *skb; - - if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE)) - return 0; - skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, NULL); - if (!skb) - return -ENOMEM; - return __ieee80211_if_config(dev, skb); -} - -int ieee80211_hw_config(struct ieee80211_local *local) -{ - struct ieee80211_hw_mode *mode; - int ret = 0; - -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d " - "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq, - local->hw.conf.phymode); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - - if (local->ops->config) - ret = local->ops->config(local_to_hw(local), &local->hw.conf); - - list_for_each_entry(mode, &local->modes_list, list) { - if (mode->mode == local->hw.conf.phymode) { - if (local->curr_rates != mode->rates) - rate_control_clear(local); - local->curr_rates = mode->rates; - local->num_curr_rates = mode->num_rates; - ieee80211_prepare_rates(local); - break; - } - } - - return ret; -} - - -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_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - dev->mtu = new_mtu; - return 0; -} - - -static int ieee80211_change_mtu_apdev(struct net_device *dev, int new_mtu) -{ - /* FIX: what would be proper limits for MTU? - * This interface uses 802.11 frames. */ - if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) { - printk(KERN_WARNING "%s: invalid MTU %d\n", - dev->name, new_mtu); - return -EINVAL; - } - -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - dev->mtu = new_mtu; - return 0; -} - - -static void ieee80211_tx_timeout(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - printk(KERN_WARNING "%s: resetting interface.\n", dev->name); - - if (local->ops->reset(local_to_hw(local))) - printk(KERN_ERR "%s: failed to reset interface.\n", dev->name); - else - netif_wake_queue(dev); -} - - -static int ieee80211_set_mac_address(struct net_device *dev, void *addr) -{ - struct sockaddr *a = addr; - - if (netif_running(dev)) - return -EBUSY; - - memcpy(dev->dev_addr, a->sa_data, ETH_ALEN); - return 0; -} - -static void ieee80211_set_multicast_list(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - unsigned short flags; - - if (((dev->flags & IFF_ALLMULTI) != 0) ^ (sdata->allmulti != 0)) { - if (sdata->allmulti) { - sdata->allmulti = 0; - local->iff_allmultis--; - } else { - sdata->allmulti = 1; - local->iff_allmultis++; - } - } - if (((dev->flags & IFF_PROMISC) != 0) ^ (sdata->promisc != 0)) { - if (sdata->promisc) { - sdata->promisc = 0; - local->iff_promiscs--; - } else { - sdata->promisc = 1; - local->iff_promiscs++; - } - } - if (dev->mc_count != sdata->mc_count) { - local->mc_count = local->mc_count - sdata->mc_count + - dev->mc_count; - sdata->mc_count = dev->mc_count; - } - if (local->ops->set_multicast_list) { - flags = local->mdev->flags; - if (local->iff_allmultis) - flags |= IFF_ALLMULTI; - if (local->iff_promiscs) - flags |= IFF_PROMISC; - local->ops->set_multicast_list(local_to_hw(local), flags, - local->mc_count); - } -} - -struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw, - struct dev_mc_list *prev, - void **ptr) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata = *ptr; - struct dev_mc_list *mc; - - if (!prev) { - WARN_ON(sdata); - sdata = NULL; - } - if (!prev || !prev->next) { - if (sdata) - sdata = list_entry(sdata->list.next, - struct ieee80211_sub_if_data, list); - else - sdata = list_entry(local->sub_if_list.next, - struct ieee80211_sub_if_data, list); - if (&sdata->list != &local->sub_if_list) - mc = sdata->dev->mc_list; - else - mc = NULL; - } else - mc = prev->next; - - *ptr = sdata; - return mc; -} -EXPORT_SYMBOL(ieee80211_get_mc_list_item); - -static struct net_device_stats *ieee80211_get_stats(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - return &(sdata->stats); -} - -void ieee80211_if_shutdown(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - ASSERT_RTNL(); - switch (sdata->type) { - case IEEE80211_IF_TYPE_STA: - case IEEE80211_IF_TYPE_IBSS: - sdata->u.sta.state = IEEE80211_DISABLED; - cancel_delayed_work(&sdata->u.sta.work); - if (!local->ops->hw_scan && - local->scan_dev == sdata->dev) { - local->sta_scanning = 0; - cancel_delayed_work(&local->scan_work); - flush_scheduled_work(); - /* see comment in ieee80211_unregister_hw to - * understand why this works */ - local->scan_dev = NULL; - } else - flush_scheduled_work(); - break; - } -} - -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_master_open(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - int res = -EOPNOTSUPP; - - list_for_each_entry(sdata, &local->sub_if_list, list) { - if (sdata->dev != dev && netif_running(sdata->dev)) { - res = 0; - tasklet_enable(&local->tx_pending_tasklet); - break; - } - } - return res; -} - -static int ieee80211_master_stop(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - - tasklet_disable(&local->tx_pending_tasklet); - list_for_each_entry(sdata, &local->sub_if_list, list) { - if (sdata->dev != dev && netif_running(sdata->dev)) - return -EOPNOTSUPP; - } - return 0; -} - -static int ieee80211_mgmt_open(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - if (!netif_running(local->mdev)) - return -EOPNOTSUPP; - return 0; -} - -static int ieee80211_mgmt_stop(struct net_device *dev) -{ - return 0; -} - -/* Check if running monitor interfaces should go to a "soft monitor" mode - * and switch them if necessary. */ -static inline void ieee80211_start_soft_monitor(struct ieee80211_local *local) -{ - struct ieee80211_if_init_conf conf; - - if (local->open_count && local->open_count == local->monitors && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) && - local->ops->remove_interface) { - conf.if_id = -1; - conf.type = IEEE80211_IF_TYPE_MNTR; - conf.mac_addr = NULL; - local->ops->remove_interface(local_to_hw(local), &conf); - } -} - -/* Check if running monitor interfaces should go to a "hard monitor" mode - * and switch them if necessary. */ -static void ieee80211_start_hard_monitor(struct ieee80211_local *local) -{ - struct ieee80211_if_init_conf conf; - - if (local->open_count && local->open_count == local->monitors && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) && - local->ops->add_interface) { - conf.if_id = -1; - conf.type = IEEE80211_IF_TYPE_MNTR; - conf.mac_addr = NULL; - local->ops->add_interface(local_to_hw(local), &conf); - } -} - -static int ieee80211_open(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata, *nsdata; - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_if_init_conf conf; - int res; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - list_for_each_entry(nsdata, &local->sub_if_list, list) { - struct net_device *ndev = nsdata->dev; - - if (ndev != dev && ndev != local->mdev && - netif_running(ndev) && - memcmp(dev->dev_addr, ndev->dev_addr, ETH_ALEN) == 0 && - !identical_mac_addr_allowed(sdata->type, nsdata->type)) { - return -ENOTUNIQ; - } - } - if (sdata->type == IEEE80211_IF_TYPE_WDS && - memcmp(sdata->u.wds.remote_addr, "\0\0\0\0\0\0", ETH_ALEN) == 0) - return -ENOLINK; - - if (sdata->type == IEEE80211_IF_TYPE_MNTR && local->open_count && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) { - /* run the interface in a "soft monitor" mode */ - local->monitors++; - local->open_count++; - return 0; - } - ieee80211_start_soft_monitor(local); - - if (local->ops->add_interface) { - conf.if_id = dev->ifindex; - conf.type = sdata->type; - conf.mac_addr = dev->dev_addr; - res = local->ops->add_interface(local_to_hw(local), &conf); - if (res) { - if (sdata->type == IEEE80211_IF_TYPE_MNTR) - ieee80211_start_hard_monitor(local); - return res; - } - } else { - if (sdata->type != IEEE80211_IF_TYPE_STA) - return -EOPNOTSUPP; - if (local->open_count > 0) - return -ENOBUFS; - } - - if (local->open_count == 0) { - res = 0; - if (local->ops->open) - res = local->ops->open(local_to_hw(local)); - if (res == 0) { - res = dev_open(local->mdev); - if (res) { - if (local->ops->stop) - local->ops->stop(local_to_hw(local)); - } else if (local->apdev) - dev_open(local->apdev); - } - if (res) { - if (local->ops->remove_interface) - local->ops->remove_interface(local_to_hw(local), - &conf); - return res; - } - ieee80211_init_scan(local); - } - local->open_count++; - - if (sdata->type == IEEE80211_IF_TYPE_MNTR) - local->monitors++; - else - ieee80211_if_config(dev); - - netif_start_queue(dev); - return 0; -} - - -static int ieee80211_stop(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_local *local = dev->ieee80211_ptr; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->type == IEEE80211_IF_TYPE_MNTR && - local->open_count > 1 && - !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) { - /* remove "soft monitor" interface */ - local->open_count--; - local->monitors--; - return 0; - } - - netif_stop_queue(dev); - - if (sdata->type == IEEE80211_IF_TYPE_MNTR) - local->monitors--; - - local->open_count--; - if (local->open_count == 0) { - ieee80211_stop_scan(local); - dev_close(local->mdev); - if (local->apdev) - dev_close(local->apdev); - if (local->ops->stop) - local->ops->stop(local_to_hw(local)); - } - if (local->ops->remove_interface) { - struct ieee80211_if_init_conf conf; - - conf.if_id = dev->ifindex; - conf.type = sdata->type; - conf.mac_addr = dev->dev_addr; - local->ops->remove_interface(local_to_hw(local), &conf); - } - ieee80211_if_shutdown(dev); - - ieee80211_start_hard_monitor(local); - - return 0; -} - - -static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr) -{ - memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */ - return ETH_ALEN; -} - -static inline int ieee80211_bssid_match(u8 *raddr, u8 *addr) -{ - return memcmp(raddr, addr, ETH_ALEN) == 0 || - is_broadcast_ether_addr(raddr); -} - - -static ieee80211_txrx_result -ieee80211_rx_h_data(struct ieee80211_txrx_data *rx) -{ - struct net_device *dev = rx->dev; - struct ieee80211_local *local = rx->local; - 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, *skb2; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - fc = rx->fc; - if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) - return TXRX_CONTINUE; - - if (unlikely(!WLAN_FC_DATA_PRESENT(fc))) - return TXRX_DROP; - - 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->type != IEEE80211_IF_TYPE_AP && - sdata->type != IEEE80211_IF_TYPE_VLAN)) { - printk(KERN_DEBUG "%s: dropped ToDS frame (BSSID=" - MAC_FMT " SA=" MAC_FMT " DA=" MAC_FMT ")\n", - dev->name, MAC_ARG(hdr->addr1), - MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3)); - return TXRX_DROP; - } - 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->type != IEEE80211_IF_TYPE_WDS)) { - printk(KERN_DEBUG "%s: dropped FromDS&ToDS frame (RA=" - MAC_FMT " TA=" MAC_FMT " DA=" MAC_FMT " SA=" - MAC_FMT ")\n", - rx->dev->name, MAC_ARG(hdr->addr1), - MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3), - MAC_ARG(hdr->addr4)); - return TXRX_DROP; - } - break; - case IEEE80211_FCTL_FROMDS: - /* DA BSSID SA */ - memcpy(dst, hdr->addr1, ETH_ALEN); - memcpy(src, hdr->addr3, ETH_ALEN); - - if (sdata->type != IEEE80211_IF_TYPE_STA) { - return TXRX_DROP; - } - break; - case 0: - /* DA SA BSSID */ - memcpy(dst, hdr->addr1, ETH_ALEN); - memcpy(src, hdr->addr2, ETH_ALEN); - - if (sdata->type != IEEE80211_IF_TYPE_IBSS) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: dropped IBSS frame (DA=" - MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT - ")\n", - dev->name, MAC_ARG(hdr->addr1), - MAC_ARG(hdr->addr2), - MAC_ARG(hdr->addr3)); - } - return TXRX_DROP; - } - break; - } - - payload = skb->data + hdrlen; - - if (unlikely(skb->len - hdrlen < 8)) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: RX too short data frame " - "payload\n", dev->name); - } - return TXRX_DROP; - } - - ethertype = (payload[6] << 8) | payload[7]; - - if (likely((memcmp(payload, rfc1042_header, 6) == 0 && - ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) || - memcmp(payload, bridge_tunnel_header, 6) == 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; - } - skb->dev = dev; - - skb2 = NULL; - - sdata->stats.rx_packets++; - sdata->stats.rx_bytes += skb->len; - - if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP - || sdata->type == IEEE80211_IF_TYPE_VLAN) && rx->u.rx.ra_match) { - if (is_multicast_ether_addr(skb->data)) { - /* send multicast frames both to higher layers in - * local net stack and back to the wireless media */ - skb2 = skb_copy(skb, GFP_ATOMIC); - if (!skb2) - printk(KERN_DEBUG "%s: failed to clone " - "multicast frame\n", dev->name); - } else { - struct sta_info *dsta; - dsta = sta_info_get(local, skb->data); - if (dsta && !dsta->dev) { - printk(KERN_DEBUG "Station with null dev " - "structure!\n"); - } else if (dsta && dsta->dev == dev) { - /* Destination station is associated to this - * AP, so send the frame directly to it and - * do not pass the frame to local net stack. - */ - skb2 = 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 (skb2) { - /* send to wireless media */ - skb2->protocol = __constant_htons(ETH_P_802_3); - skb2->mac.raw = skb2->nh.raw = skb2->data; - dev_queue_xmit(skb2); - } - - return TXRX_QUEUED; -} - - -static struct ieee80211_rate * -ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate) -{ - struct ieee80211_hw_mode *mode; - int r; - - list_for_each_entry(mode, &local->modes_list, list) { - if (mode->mode != phymode) - continue; - for (r = 0; r < mode->num_rates; r++) { - struct ieee80211_rate *rate = &mode->rates[r]; - if (rate->val == hw_rate || - (rate->flags & IEEE80211_RATE_PREAMBLE2 && - rate->val2 == hw_rate)) - return rate; - } - } - - return NULL; -} - -void -ieee80211_fill_frame_info(struct ieee80211_local *local, - struct ieee80211_frame_info *fi, - struct ieee80211_rx_status *status) -{ - if (status) { - struct timespec ts; - struct ieee80211_rate *rate; - - jiffies_to_timespec(status->hosttime, &ts); - fi->hosttime = cpu_to_be64((u64) ts.tv_sec * 1000000 + - ts.tv_nsec / 1000); - fi->mactime = cpu_to_be64(status->mactime); - switch (status->phymode) { - case MODE_IEEE80211A: - fi->phytype = htonl(ieee80211_phytype_ofdm_dot11_a); - break; - case MODE_IEEE80211B: - fi->phytype = htonl(ieee80211_phytype_dsss_dot11_b); - break; - case MODE_IEEE80211G: - fi->phytype = htonl(ieee80211_phytype_pbcc_dot11_g); - break; - case MODE_ATHEROS_TURBO: - fi->phytype = - htonl(ieee80211_phytype_dsss_dot11_turbo); - break; - default: - fi->phytype = 0xAAAAAAAA; - break; - } - fi->channel = htonl(status->channel); - rate = ieee80211_get_rate(local, status->phymode, - status->rate); - if (rate) { - fi->datarate = htonl(rate->rate); - if (rate->flags & IEEE80211_RATE_PREAMBLE2) { - if (status->rate == rate->val) - fi->preamble = htonl(2); /* long */ - else if (status->rate == rate->val2) - fi->preamble = htonl(1); /* short */ - } else - fi->preamble = htonl(0); - } else { - fi->datarate = htonl(0); - fi->preamble = htonl(0); - } - - fi->antenna = htonl(status->antenna); - fi->priority = 0xffffffff; /* no clue */ - fi->ssi_type = htonl(ieee80211_ssi_raw); - fi->ssi_signal = htonl(status->ssi); - fi->ssi_noise = 0x00000000; - fi->encoding = 0; - } else { - /* clear everything because we really don't know. - * the msg_type field isn't present on monitor frames - * so we don't know whether it will be present or not, - * but it's ok to not clear it since it'll be assigned - * anyway */ - memset(fi, 0, sizeof(*fi) - sizeof(fi->msg_type)); - - fi->ssi_type = htonl(ieee80211_ssi_none); - } - fi->version = htonl(IEEE80211_FI_VERSION); - fi->length = cpu_to_be32(sizeof(*fi) - sizeof(fi->msg_type)); -} - -/* this routine is actually not just for this, but also - * for pushing fake 'management' frames into userspace. - * it shall be replaced by a netlink-based system. */ -void -ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_rx_status *status, u32 msg_type) -{ - struct ieee80211_frame_info *fi; - const size_t hlen = sizeof(struct ieee80211_frame_info); - struct ieee80211_sub_if_data *sdata; - - skb->dev = local->apdev; - - sdata = IEEE80211_DEV_TO_SUB_IF(local->apdev); - - if (skb_headroom(skb) < hlen) { - I802_DEBUG_INC(local->rx_expand_skb_head); - if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) { - dev_kfree_skb(skb); - return; - } - } - - fi = (struct ieee80211_frame_info *) skb_push(skb, hlen); - - ieee80211_fill_frame_info(local, fi, status); - fi->msg_type = htonl(msg_type); - - sdata->stats.rx_packets++; - sdata->stats.rx_bytes += skb->len; - - skb->mac.raw = skb->data; - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - -void -ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb, - struct ieee80211_rx_status *status) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_frame_info *fi; - struct ieee80211_sub_if_data *sdata; - const size_t hlen = sizeof(struct ieee80211_frame_info) - - sizeof(fi->msg_type); - - skb->dev = dev; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (skb_headroom(skb) < hlen) { - I802_DEBUG_INC(local->rx_expand_skb_head); - if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) { - dev_kfree_skb(skb); - return; - } - } - - fi = (struct ieee80211_frame_info *) skb_push(skb, hlen); - - ieee80211_fill_frame_info(local, fi, status); - sdata->stats.rx_packets++; - sdata->stats.rx_bytes += skb->len; - - skb->mac.raw = skb->data; - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - -int ieee80211_radar_status(struct ieee80211_hw *hw, int channel, - int radar, int radar_type) -{ - struct sk_buff *skb; - struct ieee80211_radar_info *msg; - struct ieee80211_local *local = hw_to_local(hw); - - if (!local->apdev) - return 0; - - skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) + - sizeof(struct ieee80211_radar_info)); - - if (!skb) - return -ENOMEM; - skb_reserve(skb, sizeof(struct ieee80211_frame_info)); - - msg = (struct ieee80211_radar_info *) - skb_put(skb, sizeof(struct ieee80211_radar_info)); - msg->channel = channel; - msg->radar = radar; - msg->radar_type = radar_type; - - ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_radar); - return 0; -} -EXPORT_SYMBOL(ieee80211_radar_status); - -int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw, u8 *peer_address, - u16 aid) -{ - struct sk_buff *skb; - struct ieee80211_msg_set_aid_for_sta *msg; - struct ieee80211_local *local = hw_to_local(hw); - - /* unlikely because if this event only happens for APs, - * which require an open ap device. */ - if (unlikely(!local->apdev)) - return 0; - - skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) + - sizeof(struct ieee80211_msg_set_aid_for_sta)); - - if (!skb) - return -ENOMEM; - skb_reserve(skb, sizeof(struct ieee80211_frame_info)); - - msg = (struct ieee80211_msg_set_aid_for_sta *) - skb_put(skb, sizeof(struct ieee80211_msg_set_aid_for_sta)); - memcpy(msg->sta_address, peer_address, ETH_ALEN); - msg->aid = aid; - - ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_set_aid_for_sta); - return 0; -} -EXPORT_SYMBOL(ieee80211_set_aid_for_sta); - -static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - 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_D80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power " - "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid); -#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */ -} - - -static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sk_buff *skb; - int sent = 0; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_tx_packet_data *pkt_data; - - 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_D80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power " - "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid); -#endif /* CONFIG_D80211_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->requeue = 1; - 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_D80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame " - "since STA not sleeping anymore\n", dev->name, - MAC_ARG(sta->addr), sta->aid); -#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */ - pkt_data->requeue = 1; - dev_queue_xmit(skb); - } - - return sent; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx) -{ - struct sk_buff *skb; - int no_pending_pkts; - - if (likely(!rx->sta || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL || - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL || - !rx->u.rx.ra_match)) - return TXRX_CONTINUE; - - 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_D80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries " - "after %d)\n", - MAC_ARG(rx->sta->addr), rx->sta->aid, - skb_queue_len(&rx->sta->ps_tx_buf)); -#endif /* CONFIG_D80211_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_D80211_VERBOSE_PS_DEBUG - } else if (!rx->u.rx.sent_ps_buffered) { - printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even " - "though there is no buffered frames for it\n", - rx->dev->name, MAC_ARG(rx->sta->addr)); -#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */ - - } - - /* Free PS Poll skb here instead of returning TXRX_DROP that would - * count as an dropped frame. */ - dev_kfree_skb(rx->skb); - - return TXRX_QUEUED; -} - - -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_D80211_DEBUG - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) entry->skb_list.next->data; - printk(KERN_DEBUG "%s: RX reassembly removed oldest " - "fragment entry (idx=%d age=%lu seq=%d last_frag=%d " - "addr1=" MAC_FMT " addr2=" MAC_FMT "\n", - sdata->dev->name, idx, - jiffies - entry->first_frag_time, entry->seq, - entry->last_frag, MAC_ARG(hdr->addr1), - MAC_ARG(hdr->addr2)); -#endif /* CONFIG_D80211_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) || - memcmp(hdr->addr1, f_hdr->addr1, ETH_ALEN) != 0 || - memcmp(hdr->addr2, f_hdr->addr2, ETH_ALEN) != 0) - continue; - - if (entry->first_frag_time + 2 * HZ < jiffies) { - __skb_queue_purge(&entry->skb_list); - continue; - } - return entry; - } - - return NULL; -} - - -static ieee80211_txrx_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; - - 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->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 TXRX_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 TXRX_DROP; - } - - /* 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->alg != ALG_CCMP) - return TXRX_DROP; - 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) { - printk(KERN_DEBUG "%s: defrag: CCMP PN not sequential" - " A2=" MAC_FMT " PN=%02x%02x%02x%02x%02x%02x " - "(expected %02x%02x%02x%02x%02x%02x)\n", - rx->dev->name, MAC_ARG(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 TXRX_DROP; - } - 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 TXRX_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 TXRX_DROP; - } - } - while ((skb = __skb_dequeue(&entry->skb_list))) - memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len); - - /* Complete frame has been reassembled - process it now */ - rx->fragmented = 1; - - 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 TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_monitor(struct ieee80211_txrx_data *rx) -{ - if (rx->sdata->type == IEEE80211_IF_TYPE_MNTR) { - ieee80211_rx_monitor(rx->dev, rx->skb, rx->u.rx.status); - return TXRX_QUEUED; - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_check(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_hdr *hdr; - int always_sta_key; - 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->u.rx.ra_match) { - rx->local->dot11FrameDuplicateCount++; - rx->sta->num_duplicates++; - } - return TXRX_DROP; - } else - rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl; - } - - if ((rx->local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) && - rx->skb->len > FCS_LEN) - skb_trim(rx->skb, rx->skb->len - FCS_LEN); - - if (unlikely(rx->skb->len < 16)) { - I802_DEBUG_INC(rx->local->rx_handlers_drop_short); - return TXRX_DROP; - } - - if (!rx->u.rx.ra_match) - rx->skb->pkt_type = PACKET_OTHERHOST; - else if (memcmp(rx->dev->dev_addr, hdr->addr1, ETH_ALEN) == 0) - rx->skb->pkt_type = PACKET_HOST; - else if (is_multicast_ether_addr(hdr->addr1)) { - if (is_broadcast_ether_addr(hdr->addr1)) - rx->skb->pkt_type = PACKET_BROADCAST; - else - rx->skb->pkt_type = PACKET_MULTICAST; - } else - rx->skb->pkt_type = PACKET_OTHERHOST; - - /* 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->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->u.rx.ra_match) { - /* Drop IBSS frames and frames for other hosts - * silently. */ - return TXRX_DROP; - } - - if (!rx->local->apdev) - return TXRX_DROP; - - ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_sta_not_assoc); - return TXRX_QUEUED; - } - - if (rx->sdata->type == IEEE80211_IF_TYPE_STA) - always_sta_key = 0; - else - always_sta_key = 1; - - if (rx->sta && rx->sta->key && always_sta_key) { - rx->key = rx->sta->key; - } else { - if (rx->sta && rx->sta->key) - rx->key = rx->sta->key; - else - rx->key = rx->sdata->default_key; - - if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) && - rx->fc & IEEE80211_FCTL_PROTECTED) { - int keyidx = ieee80211_wep_get_keyidx(rx->skb); - - if (keyidx >= 0 && keyidx < NUM_DEFAULT_KEYS && - (!rx->sta || !rx->sta->key || keyidx > 0)) - rx->key = rx->sdata->keys[keyidx]; - - if (!rx->key) { - if (!rx->u.rx.ra_match) - return TXRX_DROP; - printk(KERN_DEBUG "%s: RX WEP frame with " - "unknown keyidx %d (A1=" MAC_FMT " A2=" - MAC_FMT " A3=" MAC_FMT ")\n", - rx->dev->name, keyidx, - MAC_ARG(hdr->addr1), - MAC_ARG(hdr->addr2), - MAC_ARG(hdr->addr3)); - if (!rx->local->apdev) - return TXRX_DROP; - ieee80211_rx_mgmt( - rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_wep_frame_unknown_key); - return TXRX_QUEUED; - } - } - } - - if (rx->fc & IEEE80211_FCTL_PROTECTED && rx->key && rx->u.rx.ra_match) { - rx->key->tx_rx_count++; - if (unlikely(rx->local->key_tx_rx_threshold && - rx->key->tx_rx_count > - rx->local->key_tx_rx_threshold)) { - ieee80211_key_threshold_notify(rx->dev, rx->key, - rx->sta); - } - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_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 TXRX_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->type == IEEE80211_IF_TYPE_IBSS) { - u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len); - if (memcmp(bssid, rx->sdata->u.sta.bssid, ETH_ALEN) == 0) - sta->last_rx = jiffies; - } else - if (!is_multicast_ether_addr(hdr->addr1) || - rx->sdata->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->u.rx.ra_match) - return TXRX_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 TXRX_QUEUED; - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx) -{ - if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || - !rx->key || rx->key->alg != ALG_WEP || !rx->u.rx.ra_match) - return TXRX_CONTINUE; - - /* Check for weak IVs, if hwaccel did not remove IV from the frame */ - if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) || - rx->key->force_sw_encrypt) { - u8 *iv = ieee80211_wep_is_weak_iv(rx->skb, rx->key); - if (iv) { - rx->sta->wep_weak_iv_count++; - } - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_wep_decrypt(struct ieee80211_txrx_data *rx) -{ - /* If the device handles decryption totally, skip this test */ - if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) - return TXRX_CONTINUE; - - if ((rx->key && rx->key->alg != ALG_WEP) || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || - ((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 TXRX_CONTINUE; - - if (!rx->key) { - printk(KERN_DEBUG "%s: RX WEP frame, but no key set\n", - rx->dev->name); - return TXRX_DROP; - } - - if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED) || - rx->key->force_sw_encrypt) { - if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) { - printk(KERN_DEBUG "%s: RX WEP frame, decrypt " - "failed\n", rx->dev->name); - return TXRX_DROP; - } - } else if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) { - ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); - /* remove ICV */ - skb_trim(rx->skb, rx->skb->len - 4); - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx) -{ - if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) && - rx->sdata->type != IEEE80211_IF_TYPE_STA && rx->u.rx.ra_match) { - /* Pass both encrypted and unencrypted EAPOL frames to user - * space for processing. */ - if (!rx->local->apdev) - return TXRX_DROP; - ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_normal); - return TXRX_QUEUED; - } - - if (unlikely(rx->sdata->ieee802_1x && - (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA && - (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC && - (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) && - !ieee80211_is_eapol(rx->skb))) { -#ifdef CONFIG_D80211_DEBUG - struct ieee80211_hdr *hdr = - (struct ieee80211_hdr *) rx->skb->data; - printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT - " (unauthorized port)\n", rx->dev->name, - MAC_ARG(hdr->addr2)); -#endif /* CONFIG_D80211_DEBUG */ - return TXRX_DROP; - } - - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx) -{ - /* If the device handles decryption totally, skip this test */ - if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) - return TXRX_CONTINUE; - - /* 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) && - (rx->sdata->eapol == 0 || - !ieee80211_is_eapol(rx->skb)))) { - printk(KERN_DEBUG "%s: RX non-WEP frame, but expected " - "encryption\n", rx->dev->name); - return TXRX_DROP; - } - return TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_sub_if_data *sdata; - - if (!rx->u.rx.ra_match) - return TXRX_DROP; - - sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev); - if ((sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) && - !rx->local->user_space_mlme) { - ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status); - } else { - /* Management frames are sent to hostapd for processing */ - if (!rx->local->apdev) - return TXRX_DROP; - ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_normal); - } - return TXRX_QUEUED; -} - - -static ieee80211_txrx_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_scanning != 0)) { - ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status); - return TXRX_QUEUED; - } - - if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) - local->scan.txrx_count++; - if (unlikely(local->scan.in_scan != 0 && - rx->u.rx.status->freq == local->scan.freq)) { - struct ieee80211_hdr *hdr; - u16 fc; - - local->scan.rx_packets++; - - hdr = (struct ieee80211_hdr *) skb->data; - fc = le16_to_cpu(hdr->frame_control); - - if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT && - (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON && - rx->dev == local->mdev) { - local->scan.rx_beacon++; - /* Need to trim FCS here because it is normally - * removed only after this passive scan handler. */ - if ((rx->local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) && - rx->skb->len > FCS_LEN) - skb_trim(rx->skb, rx->skb->len - FCS_LEN); - - if (!rx->local->apdev) - return TXRX_DROP; - ieee80211_rx_mgmt(rx->local, rx->skb, - rx->u.rx.status, - ieee80211_msg_passive_scan); - return TXRX_QUEUED; - } else { - I802_DEBUG_INC(local->rx_handlers_drop_passive_scan); - return TXRX_DROP; - } - } - - if (unlikely(rx->u.rx.in_scan)) { - /* scanning finished during invoking of handlers */ - I802_DEBUG_INC(local->rx_handlers_drop_passive_scan); - return TXRX_DROP; - } - - return TXRX_CONTINUE; -} - - -static u8 * ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len) -{ - u16 fc; - - if (len < 24) - return NULL; - - fc = le16_to_cpu(hdr->frame_control); - - switch (fc & IEEE80211_FCTL_FTYPE) { - case IEEE80211_FTYPE_DATA: - 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: - return hdr->addr3; - case IEEE80211_FTYPE_CTL: - if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL) - return hdr->addr1; - else - return NULL; - } - - return NULL; -} - -static void ieee80211_rx_michael_mic_report(struct net_device *dev, - struct ieee80211_hdr *hdr, - struct sta_info *sta, - struct ieee80211_txrx_data *rx) -{ - int keyidx, hdrlen; - - hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb); - if (rx->skb->len >= hdrlen + 4) - keyidx = rx->skb->data[hdrlen + 3] >> 6; - else - keyidx = -1; - - /* TODO: verify that this is not triggered by fragmented - * frames (hw does not verify MIC for them). */ - printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC " - "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n", - dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1), keyidx); - - if (!sta) { - /* Some hardware versions seem to generate incorrect - * Michael MIC reports; ignore them to avoid triggering - * countermeasures. */ - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for unknown address " MAC_FMT "\n", - dev->name, MAC_ARG(hdr->addr2)); - goto ignore; - } - - if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) { - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for a frame with no ISWEP flag (src " - MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2)); - goto ignore; - } - - if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) && - rx->sdata->type == IEEE80211_IF_TYPE_AP) { - int keyidx = ieee80211_wep_get_keyidx(rx->skb); - /* AP with Pairwise keys support 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 BSS. */ - if (keyidx) { - printk(KERN_DEBUG "%s: ignored Michael MIC error for " - "a frame with non-zero keyidx (%d) (src " MAC_FMT - ")\n", dev->name, keyidx, MAC_ARG(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)) { - printk(KERN_DEBUG "%s: ignored spurious Michael MIC " - "error for a frame that cannot be encrypted " - "(fc=0x%04x) (src " MAC_FMT ")\n", - dev->name, rx->fc, MAC_ARG(hdr->addr2)); - goto ignore; - } - - do { - union iwreq_data wrqu; - char *buf = kmalloc(128, GFP_ATOMIC); - if (!buf) - break; - - /* TODO: needed parameters: count, key type, TSC */ - sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" - "keyid=%d %scast addr=" MAC_FMT ")", - keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni", - MAC_ARG(hdr->addr2)); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf); - kfree(buf); - } while (0); - - /* TODO: consider verifying the MIC error report with software - * implementation if we get too many spurious reports from the - * hardware. */ - if (!rx->local->apdev) - goto ignore; - ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_michael_mic_failure); - return; - - ignore: - dev_kfree_skb(rx->skb); - rx->skb = NULL; -} - -static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers( - struct ieee80211_local *local, - ieee80211_rx_handler *handlers, - struct ieee80211_txrx_data *rx, - struct sta_info *sta) -{ - ieee80211_rx_handler *handler; - ieee80211_txrx_result res = TXRX_DROP; - - for (handler = handlers; *handler != NULL; handler++) { - res = (*handler)(rx); - if (res != TXRX_CONTINUE) { - if (res == TXRX_DROP) { - I802_DEBUG_INC(local->rx_handlers_drop); - if (sta) - sta->rx_dropped++; - } - if (res == TXRX_QUEUED) - I802_DEBUG_INC(local->rx_handlers_queued); - break; - } - } - - if (res == TXRX_DROP) { - dev_kfree_skb(rx->skb); - } - return res; -} - -static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local, - ieee80211_rx_handler *handlers, - struct ieee80211_txrx_data *rx, - struct sta_info *sta) -{ - if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) == - TXRX_CONTINUE) - dev_kfree_skb(rx->skb); -} - -/* - * 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); - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - struct ieee80211_hdr *hdr; - struct ieee80211_txrx_data rx; - u16 type; - int multicast; - - hdr = (struct ieee80211_hdr *) skb->data; - memset(&rx, 0, sizeof(rx)); - rx.skb = skb; - rx.local = local; - - rx.u.rx.status = status; - rx.fc = skb->len >= 2 ? le16_to_cpu(hdr->frame_control) : 0; - type = rx.fc & IEEE80211_FCTL_FTYPE; - if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT) - local->dot11ReceivedFragmentCount++; - multicast = is_multicast_ether_addr(hdr->addr1); - - if (skb->len >= 16) - sta = rx.sta = sta_info_get(local, hdr->addr2); - else - sta = rx.sta = NULL; - - if (sta) { - rx.dev = 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, sta, &rx); - goto end; - } - - if (unlikely(local->sta_scanning || local->scan.in_scan)) - rx.u.rx.in_scan = 1; - - if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx, - sta) != TXRX_CONTINUE) - goto end; - skb = rx.skb; - - if (sta && !sta->assoc_ap && !(sta->flags & WLAN_STA_WDS) && - !local->iff_promiscs && !multicast) { - rx.u.rx.ra_match = 1; - ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx, - sta); - } else { - struct ieee80211_sub_if_data *prev = NULL; - struct sk_buff *skb_new; - u8 *bssid = ieee80211_get_bssid(hdr, skb->len); - - list_for_each_entry(sdata, &local->sub_if_list, list) { - rx.u.rx.ra_match = 1; - switch (sdata->type) { - case IEEE80211_IF_TYPE_STA: - if (!bssid) - continue; - if (!ieee80211_bssid_match(bssid, - sdata->u.sta.bssid)) { - if (!rx.u.rx.in_scan) - continue; - rx.u.rx.ra_match = 0; - } else if (!multicast && - memcmp(sdata->dev->dev_addr, - hdr->addr1, ETH_ALEN) != 0) { - if (!sdata->promisc) - continue; - rx.u.rx.ra_match = 0; - } - break; - case IEEE80211_IF_TYPE_IBSS: - if (!bssid) - continue; - if (!ieee80211_bssid_match(bssid, - sdata->u.sta.bssid)) { - if (!rx.u.rx.in_scan) - continue; - rx.u.rx.ra_match = 0; - } else if (!multicast && - memcmp(sdata->dev->dev_addr, - hdr->addr1, ETH_ALEN) != 0) { - if (!sdata->promisc) - continue; - rx.u.rx.ra_match = 0; - } else if (!sta) - sta = rx.sta = - ieee80211_ibss_add_sta(local->mdev, - skb, bssid, - hdr->addr2); - /* FIXME: call with sdata->dev */ - break; - case IEEE80211_IF_TYPE_AP: - if (!bssid) { - if (memcmp(sdata->dev->dev_addr, - hdr->addr1, ETH_ALEN) != 0) - continue; - } else if (!ieee80211_bssid_match(bssid, - sdata->dev->dev_addr)) { - if (!rx.u.rx.in_scan) - continue; - rx.u.rx.ra_match = 0; - } - if (sdata->dev == local->mdev && - !rx.u.rx.in_scan) - /* do not receive anything via - * master device when not scanning */ - continue; - break; - case IEEE80211_IF_TYPE_WDS: - if (bssid || - (rx.fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - continue; - if (memcmp(sdata->u.wds.remote_addr, - hdr->addr2, ETH_ALEN) != 0) - continue; - break; - } - - if (prev) { - skb_new = skb_copy(skb, GFP_ATOMIC); - if (!skb_new) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: failed to copy " - "multicast frame for %s", - local->mdev->name, prev->dev->name); - continue; - } - rx.skb = skb_new; - rx.dev = prev->dev; - rx.sdata = prev; - ieee80211_invoke_rx_handlers(local, - local->rx_handlers, - &rx, sta); - } - prev = sdata; - } - if (prev) { - rx.skb = skb; - rx.dev = prev->dev; - rx.sdata = prev; - ieee80211_invoke_rx_handlers(local, local->rx_handlers, - &rx, sta); - } else - dev_kfree_skb(skb); - } - - end: - if (sta) - sta_info_put(sta); -} -EXPORT_SYMBOL(__ieee80211_rx); - -static ieee80211_txrx_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; - - /* 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 (local->hw.conf.phymode == MODE_IEEE80211A || - local->hw.conf.phymode == MODE_ATHEROS_TURBO || - local->hw.conf.phymode == MODE_ATHEROS_TURBOG || - (local->hw.conf.phymode == MODE_IEEE80211G && - tx->u.tx.rate->flags & IEEE80211_RATE_ERP)) - 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; - - load += skb->len * tx->u.tx.rate->rate_inv; - - 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->rate; - } - } - - /* 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 TXRX_CONTINUE; -} - - -static ieee80211_txrx_result -ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx) -{ - struct ieee80211_local *local = rx->local; - struct sk_buff *skb = rx->skb; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u32 load = 0, hdrtime; - struct ieee80211_rate *rate; - int i; - - /* Estimate total channel use caused by this frame */ - - if (unlikely(local->num_curr_rates < 0)) - return TXRX_CONTINUE; - - rate = &local->curr_rates[0]; - for (i = 0; i < local->num_curr_rates; i++) { - if (local->curr_rates[i].val == rx->u.rx.status->rate) { - rate = &local->curr_rates[i]; - break; - } - } - - /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values, - * 1 usec = 1/8 * (1080 / 10) = 13.5 */ - - if (local->hw.conf.phymode == MODE_IEEE80211A || - local->hw.conf.phymode == MODE_ATHEROS_TURBO || - local->hw.conf.phymode == MODE_ATHEROS_TURBOG || - (local->hw.conf.phymode == MODE_IEEE80211G && - rate->flags & IEEE80211_RATE_ERP)) - hdrtime = CHAN_UTIL_HDR_SHORT; - else - hdrtime = CHAN_UTIL_HDR_LONG; - - load = hdrtime; - if (!is_multicast_ether_addr(hdr->addr1)) - load += hdrtime; - - load += skb->len * rate->rate_inv; - - /* Divide channel_use by 8 to avoid wrapping around the counter */ - load >>= CHAN_UTIL_SHIFT; - local->channel_use_raw += load; - if (rx->sta) - rx->sta->channel_use_raw += load; - rx->u.rx.load = load; - - return TXRX_CONTINUE; -} - -static ieee80211_txrx_result -ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx) -{ - rx->sdata->channel_use_raw += rx->u.rx.load; - return TXRX_CONTINUE; -} - -static void ieee80211_stat_refresh(unsigned long data) -{ - struct ieee80211_local *local = (struct ieee80211_local *) data; - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata; - - if (!local->stat_time) - return; - - /* go through all stations */ - spin_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - sta->channel_use = (sta->channel_use_raw / local->stat_time) / - CHAN_UTIL_PER_10MS; - sta->channel_use_raw = 0; - } - spin_unlock_bh(&local->sta_lock); - - /* go through all subinterfaces */ - list_for_each_entry(sdata, &local->sub_if_list, list) { - sdata->channel_use = (sdata->channel_use_raw / - local->stat_time) / CHAN_UTIL_PER_10MS; - sdata->channel_use_raw = 0; - } - - /* hardware interface */ - local->channel_use = (local->channel_use_raw / - local->stat_time) / CHAN_UTIL_PER_10MS; - local->channel_use_raw = 0; - - local->stat_timer.expires = jiffies + HZ * local->stat_time / 100; - add_timer(&local->stat_timer); -} - - -/* 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_rx_status *saved; - struct ieee80211_local *local = hw_to_local(hw); - - skb->dev = local->mdev; - saved = kmalloc(sizeof(struct ieee80211_rx_status), GFP_ATOMIC); - if (unlikely(!saved)) { - if (net_ratelimit()) - printk(KERN_WARNING "%s: Not enough memory, " - "dropping packet", 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_rx_status)); - /* copy pointer to saved status into skb->cb for use by tasklet */ - memcpy(skb->cb, &saved, sizeof(saved)); - - skb->pkt_type = ieee80211_rx_msg; - skb_queue_tail(&local->skb_queue, skb); - tasklet_schedule(&local->tasklet); -} -EXPORT_SYMBOL(ieee80211_rx_irqsafe); - -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; - - while ((skb = skb_dequeue(&local->skb_queue)) || - (skb = skb_dequeue(&local->skb_queue_unreliable))) { - switch (skb->pkt_type) { - case ieee80211_rx_msg: - /* get pointer to saved status out of skb->cb */ - memcpy(&rx_status, skb->cb, sizeof(rx_status)); - /* Clear skb->type in order to not confuse kernel - * netstack. */ - skb->pkt_type = 0; - __ieee80211_rx(local_to_hw(local), skb, rx_status); - kfree(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; - default: /* should never get here! */ - printk(KERN_ERR "%s: Unknown message type (%d)\n", - local->mdev->name, 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 = control->ifindex; - pkt_data->mgmt_iface = (control->type == IEEE80211_IF_TYPE_MGMT); - pkt_data->req_tx_status = !!(control->flags & IEEE80211_TXCTL_REQ_TX_STATUS); - pkt_data->do_not_encrypt = !!(control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT); - pkt_data->requeue = !!(control->flags & IEEE80211_TXCTL_REQUEUE); - pkt_data->queue = control->queue; - - hdrlen = ieee80211_get_hdrlen_from_skb(skb); - - if (!key) - goto no_key; - - switch (key->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->force_sw_encrypt) - 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; - u32 msg_type; - - if (!status) { - printk(KERN_ERR - "%s: ieee80211_tx_status called with NULL status\n", - local->mdev->name); - 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", - local->mdev->name, - skb_queue_len( - &sta->tx_filtered), - !!(sta->flags & WLAN_STA_PS), - jiffies); - } - dev_kfree_skb(skb); - } - sta_info_put(sta); - return; - } - } else { - /* FIXME: STUPID to call this with both local and local->mdev */ - rate_control_tx_status(local, 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++; - } - - if (!(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS) - || unlikely(!local->apdev)) { - dev_kfree_skb(skb); - return; - } - - msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ? - ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail; - - /* skb was the original skb used for TX. Clone it and give the clone - * to netif_rx(). Free original skb. */ - skb2 = skb_copy(skb, GFP_ATOMIC); - if (!skb2) { - dev_kfree_skb(skb); - return; - } - dev_kfree_skb(skb); - skb = skb2; - - /* Send frame to hostapd */ - ieee80211_rx_mgmt(local, skb, NULL, msg_type); -} -EXPORT_SYMBOL(ieee80211_tx_status); - -/* TODO: implement register/unregister functions for adding TX/RX handlers - * into ordered list */ - -/* rx_pre handlers don't have dev and sdata fields available in - * ieee80211_txrx_data */ -static ieee80211_rx_handler ieee80211_rx_pre_handlers[] = -{ - ieee80211_rx_h_parse_qos, - ieee80211_rx_h_load_stats, - NULL -}; - -static ieee80211_rx_handler ieee80211_rx_handlers[] = -{ - ieee80211_rx_h_if_stats, - ieee80211_rx_h_monitor, - ieee80211_rx_h_passive_scan, - ieee80211_rx_h_check, - ieee80211_rx_h_sta_process, - ieee80211_rx_h_ccmp_decrypt, - ieee80211_rx_h_tkip_decrypt, - ieee80211_rx_h_wep_weak_iv_detection, - ieee80211_rx_h_wep_decrypt, - 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_802_1x_pae, - ieee80211_rx_h_drop_unencrypted, - ieee80211_rx_h_data, - ieee80211_rx_h_mgmt, - NULL -}; - -static ieee80211_tx_handler ieee80211_tx_handlers[] = -{ - ieee80211_tx_h_check_assoc, - ieee80211_tx_h_ps_buf, - ieee80211_tx_h_select_key, - ieee80211_tx_h_michael_mic_add, - ieee80211_tx_h_fragment, - ieee80211_tx_h_tkip_encrypt, - ieee80211_tx_h_ccmp_encrypt, - ieee80211_tx_h_wep_encrypt, - ieee80211_tx_h_rate_ctrl, - ieee80211_tx_h_misc, - ieee80211_tx_h_load_stats, - NULL -}; - - -int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta; - - /* Remove STA entry for the old peer */ - sta = sta_info_get(local, sdata->u.wds.remote_addr); - if (sta) { - sta_info_put(sta); - sta_info_free(sta, 0); - } else { - printk(KERN_DEBUG "%s: could not find STA entry for WDS link " - "peer " MAC_FMT "\n", - dev->name, MAC_ARG(sdata->u.wds.remote_addr)); - } - - /* Update WDS link data */ - memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN); - - return 0; -} - -/* Must not be called for mdev and apdev */ -void ieee80211_if_setup(struct net_device *dev) -{ - ether_setup(dev); - dev->hard_start_xmit = ieee80211_subif_start_xmit; - dev->wireless_handlers = - (struct iw_handler_def *) &ieee80211_iw_handler_def; - dev->do_ioctl = ieee80211_ioctl; - dev->set_mac_address = ieee80211_set_mac_address; - dev->set_multicast_list = ieee80211_set_multicast_list; - dev->change_mtu = ieee80211_change_mtu; - dev->tx_timeout = ieee80211_tx_timeout; - dev->get_stats = ieee80211_get_stats; - dev->open = ieee80211_open; - dev->stop = ieee80211_stop; - dev->tx_queue_len = 0; - dev->uninit = ieee80211_if_reinit; - dev->destructor = ieee80211_if_free; -} - -void ieee80211_if_mgmt_setup(struct net_device *dev) -{ - ether_setup(dev); - dev->hard_start_xmit = ieee80211_mgmt_start_xmit; - dev->change_mtu = ieee80211_change_mtu_apdev; - dev->get_stats = ieee80211_get_stats; - dev->open = ieee80211_mgmt_open; - dev->stop = ieee80211_mgmt_stop; - dev->type = ARPHRD_IEEE80211_PRISM; - dev->hard_header_parse = header_parse_80211; - dev->tx_queue_len = 0; - dev->uninit = ieee80211_if_reinit; - dev->destructor = ieee80211_if_free; -} - -int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, - const char *name) -{ - struct rate_control_ref *ref, *old; - int res; - - ASSERT_RTNL(); - if (local->open_count || netif_running(local->mdev) || - (local->apdev && netif_running(local->apdev))) - return -EBUSY; - - ref = rate_control_alloc(name, local); - if (!ref) { - printk(KERN_WARNING "%s: Failed to select rate control " - "algorithm\n", local->mdev->name); - return -ENOENT; - } - res = rate_control_add_attrs(ref, &local->class_dev.kobj); - if (res < 0) { - printk(KERN_DEBUG "%s: Failed to register sysfs attributes " - "for rate control\n", local->mdev->name); - rate_control_put(ref); - return res; - } - - old = local->rate_ctrl; - local->rate_ctrl = ref; - if (old) { - rate_control_remove_attrs(ref, &local->class_dev.kobj); - rate_control_put(old); - sta_info_flush(local, NULL); - } - - printk(KERN_DEBUG "%s: Selected rate control " - "algorithm '%s'\n", local->mdev->name, - ref->ops->name); - - - return 0; -} - -static void rate_control_deinitialize(struct ieee80211_local *local) -{ - struct rate_control_ref *ref; - - ref = local->rate_ctrl; - local->rate_ctrl = NULL; - rate_control_remove_attrs(ref, &local->class_dev.kobj); - rate_control_put(ref); -} - -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; - - local = ieee80211_dev_alloc(GFP_KERNEL); - if (!local) - return NULL; - - local->ops = ops; - - /* Ensure 32-byte alignment of our private data and hw private data. - * Each net_device is followed by a sub_if_data which is used for - * interface specific information. - * - * Sample memory map looks something like: - * - * 0000 ***************** - * * net_dev * - * 0160 ***************** - * * sub_if * - * 0b80 ***************** - * * hw_priv * - * 1664 ***************** - */ - priv_size = ((sizeof(struct ieee80211_sub_if_data) + - NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) + - priv_data_len; - mdev = alloc_netdev(priv_size, "wmaster%d", ether_setup); - if (!mdev) { - ieee80211_dev_free(local); - return NULL; - } - - mdev->ieee80211_ptr = local; - local->hw.priv = (char *)mdev->priv + - ((sizeof(struct ieee80211_sub_if_data) + - NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST); - local->hw.queues = 1; /* default */ - - local->mdev = mdev; - local->rx_pre_handlers = ieee80211_rx_pre_handlers; - local->rx_handlers = ieee80211_rx_handlers; - local->tx_handlers = ieee80211_tx_handlers; - - 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; - local->rate_ctrl_num_up = RATE_CONTROL_NUM_UP; - local->rate_ctrl_num_down = RATE_CONTROL_NUM_DOWN; - - local->scan.in_scan = 0; - local->enabled_modes = (unsigned int) -1; - - init_timer(&local->scan.timer); /* clear it out */ - - INIT_LIST_HEAD(&local->modes_list); - - spin_lock_init(&local->sub_if_lock); - INIT_LIST_HEAD(&local->sub_if_list); - - spin_lock_init(&local->generic_lock); - INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work); - init_timer(&local->stat_timer); - local->stat_timer.function = ieee80211_stat_refresh; - local->stat_timer.data = (unsigned long) local; - ieee80211_rx_bss_list_init(mdev); - - sta_info_init(local); - - mdev->hard_start_xmit = ieee80211_master_start_xmit; - mdev->wireless_handlers = - (struct iw_handler_def *) &ieee80211_iw_master_handler_def; - mdev->do_ioctl = ieee80211_ioctl; - mdev->change_mtu = ieee80211_change_mtu; - mdev->tx_timeout = ieee80211_tx_timeout; - mdev->get_stats = ieee80211_get_stats; - mdev->open = ieee80211_master_open; - mdev->stop = ieee80211_master_stop; - mdev->type = ARPHRD_IEEE80211; - mdev->hard_header_parse = header_parse_80211; - - sdata = IEEE80211_DEV_TO_SUB_IF(mdev); - sdata->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); - list_add_tail(&sdata->list, &local->sub_if_list); - - 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); - 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); - struct net_device *sta_dev; - int result; - - result = ieee80211_dev_alloc_index(local); - if (result < 0) - return -1; - - local->class_dev.dev = local->hw.dev; - - result = ieee80211_dev_sysfs_add(local); - if (result < 0) - goto fail_sysfs; - - local->hw.conf.beacon_int = 1000; - - result = sta_info_start(local); - if (result < 0) - goto fail_sta_info; - - if (hw->flags & IEEE80211_HW_FRAGLIST) - local->mdev->features |= NETIF_F_FRAGLIST; - rtnl_lock(); - result = dev_alloc_name(local->mdev, local->mdev->name); - if (result < 0) { - rtnl_unlock(); - goto fail_dev; - } - - memcpy(local->mdev->dev_addr, local->hw.perm_addr, ETH_ALEN); - SET_NETDEV_DEV(local->mdev, local->hw.dev); - - result = register_netdevice(local->mdev); - if (result < 0) { - rtnl_unlock(); - goto fail_dev; - } - result = sysfs_create_link(&local->class_dev.kobj, - &local->mdev->class_dev.kobj, - "master"); - if (result < 0) { - rtnl_unlock(); - goto fail_masterlink; - } - result = ieee80211_sysfs_add_netdevice(local->mdev); - if (result < 0) { - rtnl_unlock(); - goto fail_if_sysfs; - } - - result = ieee80211_init_rate_ctrl_alg(local, NULL); - rtnl_unlock(); - if (result < 0) { - printk(KERN_DEBUG "%s: Failed to initialize rate control " - "algorithm\n", local->mdev->name); - goto fail_rate; - } - - result = ieee80211_wep_init(local); - - if (result < 0) { - printk(KERN_DEBUG "%s: Failed to initialize wep\n", - local->mdev->name); - goto fail_wep; - } - - /* TODO: add rtnl locking around device creation and qdisc install */ - ieee80211_install_qdisc(local->mdev); - - /* add one default STA interface */ - rtnl_lock(); - result = ieee80211_if_add(local->mdev, "wlan%d", 1, &sta_dev); - if (result == 0) - ieee80211_if_set_type(sta_dev, IEEE80211_IF_TYPE_STA); - - local->reg_state = IEEE80211_DEV_REGISTERED; - rtnl_unlock(); - - ieee80211_led_init(local); - - return 0; - -fail_wep: - rate_control_deinitialize(local); -fail_rate: - ieee80211_sysfs_remove_netdevice(local->mdev); -fail_if_sysfs: - sysfs_remove_link(&local->class_dev.kobj, "master"); -fail_masterlink: - unregister_netdev(local->mdev); -fail_dev: - sta_info_stop(local); -fail_sta_info: - ieee80211_dev_sysfs_del(local); -fail_sysfs: - ieee80211_dev_free_index(local); - return result; -} -EXPORT_SYMBOL(ieee80211_register_hw); - -int ieee80211_register_hwmode(struct ieee80211_hw *hw, - struct ieee80211_hw_mode *mode) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_rate *rate; - int i; - - INIT_LIST_HEAD(&mode->list); - list_add_tail(&mode->list, &local->modes_list); - - local->hw_modes |= (1 << mode->mode); - for (i = 0; i < mode->num_rates; i++) { - rate = &(mode->rates[i]); - rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate; - } - - if (!local->curr_rates) { - /* Default to this mode */ - local->hw.conf.phymode = mode->mode; - local->curr_rates = mode->rates; - local->num_curr_rates = mode->num_rates; - ieee80211_prepare_rates(local); - local->hw.conf.freq = mode->channels[0].freq; - local->hw.conf.channel = mode->channels[0].chan; - local->hw.conf.channel_val = mode->channels[0].val; - } - - ieee80211_init_client(local->mdev); - - return 0; -} -EXPORT_SYMBOL(ieee80211_register_hwmode); - -void ieee80211_unregister_hw(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct ieee80211_sub_if_data *sdata, *tmp; - int i; - - tasklet_disable(&local->tasklet); - /* TODO: skb_queue should be empty here, no need to do anything? */ - - rtnl_lock(); - local->reg_state = IEEE80211_DEV_UNREGISTERED; - if (local->apdev) - ieee80211_if_del_mgmt(local); - - sysfs_remove_link(&local->class_dev.kobj, "master"); - - list_for_each_entry_safe(sdata, tmp, &local->sub_if_list, list) - __ieee80211_if_del(local, sdata); - - rtnl_unlock(); - - if (local->stat_time) - del_timer_sync(&local->stat_timer); - if (!local->ops->hw_scan && local->scan_dev) { - local->sta_scanning = 0; - cancel_delayed_work(&local->scan_work); - flush_scheduled_work(); - /* The scan_work is guaranteed not to be called at this - * point. It is not scheduled and not running now. It can be - * scheduled again only by sta_work (stopped by now) or under - * rtnl lock. */ - } - - ieee80211_rx_bss_list_deinit(local->mdev); - ieee80211_clear_tx_pending(local); - sta_info_stop(local); - rate_control_deinitialize(local); - ieee80211_dev_sysfs_del(local); - - for (i = 0; i < NUM_IEEE80211_MODES; i++) { - kfree(local->supp_rates[i]); - kfree(local->basic_rates[i]); - } - - if (skb_queue_len(&local->skb_queue) - || skb_queue_len(&local->skb_queue_unreliable)) - printk(KERN_WARNING "%s: skb_queue not empty\n", - local->mdev->name); - skb_queue_purge(&local->skb_queue); - skb_queue_purge(&local->skb_queue_unreliable); - - ieee80211_dev_free_index(local); - 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); - ieee80211_dev_free(local); -} -EXPORT_SYMBOL(ieee80211_free_hw); - -void ieee80211_release_hw(struct ieee80211_local *local) -{ - kfree(local); -} - -/* Perform netif operations on all configured interfaces */ -int ieee80211_netif_oper(struct ieee80211_hw *hw, Netif_Oper op) -{ - struct ieee80211_local *local = hw_to_local(hw); - struct net_device *dev = local->mdev; - - switch (op) { - case NETIF_ATTACH: - netif_device_attach(dev); - break; - case NETIF_DETACH: - netif_device_detach(dev); - break; - case NETIF_START: - netif_start_queue(dev); - break; - case NETIF_STOP: - break; - case NETIF_WAKE: - if (local->scan.in_scan == 0) { - netif_wake_queue(dev); -#if 1 - if (/* FIX: 802.11 qdisc in use */ 1) - __netif_schedule(dev); -#endif - } - break; - case NETIF_IS_STOPPED: - if (netif_queue_stopped(dev)) - return 1; - break; - case NETIF_UPDATE_TX_START: - dev->trans_start = jiffies; - break; - } - - return 0; -} -EXPORT_SYMBOL(ieee80211_netif_oper); - -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 - __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); - - 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]); -} -EXPORT_SYMBOL(ieee80211_start_queues); - -void ieee80211_stop_queues(struct ieee80211_hw *hw) -{ - struct ieee80211_local *local = hw_to_local(hw); - int i; - - for (i = 0; i < local->hw.queues; i++) - ieee80211_stop_queue(hw, i); -} -EXPORT_SYMBOL(ieee80211_stop_queues); - -struct net_device_stats *ieee80211_dev_stats(struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - return &sdata->stats; -} - -static int __init ieee80211_init(void) -{ - struct sk_buff *skb; - int ret; - - BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb)); - - if ((ret = ieee80211_sysfs_init())) { - printk(KERN_WARNING "ieee80211_init: sysfs initialization " - "failed\n"); - return ret; - } - - { - ret = ieee80211_wme_register(); - if (ret) { - printk(KERN_DEBUG "ieee80211_init: failed to " - "initialize WME (err=%d)\n", ret); - ieee80211_sysfs_deinit(); - return ret; - } - } - - return 0; -} - - -static void __exit ieee80211_exit(void) -{ - ieee80211_wme_unregister(); - ieee80211_sysfs_deinit(); -} - - -module_init(ieee80211_init); -module_exit(ieee80211_exit); - -MODULE_DESCRIPTION("IEEE 802.11 subsystem"); -MODULE_LICENSE("GPL"); diff --git a/package/d80211/src/ieee80211_common.h b/package/d80211/src/ieee80211_common.h deleted file mode 100644 index 06c970d1b4..0000000000 --- a/package/d80211/src/ieee80211_common.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * IEEE 802.11 driver (80211.o) -- hostapd interface - * 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 IEEE80211_COMMON_H -#define IEEE80211_COMMON_H - -#include <linux/types.h> - -/* - * This is common header information with user space. It is used on all - * frames sent to wlan#ap interface. - */ - -#define IEEE80211_FI_VERSION 0x80211001 - -struct ieee80211_frame_info { - __be32 version; - __be32 length; - __be64 mactime; - __be64 hosttime; - __be32 phytype; - __be32 channel; - __be32 datarate; - __be32 antenna; - __be32 priority; - __be32 ssi_type; - __be32 ssi_signal; - __be32 ssi_noise; - __be32 preamble; - __be32 encoding; - - /* Note: this structure is otherwise identical to capture format used - * in linux-wlan-ng, but this additional field is used to provide meta - * data about the frame to hostapd. This was the easiest method for - * providing this information, but this might change in the future. */ - __be32 msg_type; -} __attribute__ ((packed)); - - -enum ieee80211_msg_type { - ieee80211_msg_normal = 0, - ieee80211_msg_tx_callback_ack = 1, - ieee80211_msg_tx_callback_fail = 2, - ieee80211_msg_passive_scan = 3, - ieee80211_msg_wep_frame_unknown_key = 4, - ieee80211_msg_michael_mic_failure = 5, - /* hole at 6, was monitor but never sent to userspace */ - ieee80211_msg_sta_not_assoc = 7, - ieee80211_msg_set_aid_for_sta = 8 /* used by Intersil MVC driver */, - ieee80211_msg_key_threshold_notification = 9, - ieee80211_msg_radar = 11, -}; - -struct ieee80211_msg_set_aid_for_sta { - char sta_address[ETH_ALEN]; - u16 aid; -}; - -struct ieee80211_msg_key_notification { - int tx_rx_count; - char ifname[IFNAMSIZ]; - u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */ -}; - - -enum ieee80211_phytype { - ieee80211_phytype_fhss_dot11_97 = 1, - ieee80211_phytype_dsss_dot11_97 = 2, - ieee80211_phytype_irbaseband = 3, - ieee80211_phytype_dsss_dot11_b = 4, - ieee80211_phytype_pbcc_dot11_b = 5, - ieee80211_phytype_ofdm_dot11_g = 6, - ieee80211_phytype_pbcc_dot11_g = 7, - ieee80211_phytype_ofdm_dot11_a = 8, - ieee80211_phytype_dsss_dot11_turbog = 255, - ieee80211_phytype_dsss_dot11_turbo = 256, -}; - -enum ieee80211_ssi_type { - ieee80211_ssi_none = 0, - ieee80211_ssi_norm = 1, /* normalized, 0-1000 */ - ieee80211_ssi_dbm = 2, - ieee80211_ssi_raw = 3, /* raw SSI */ -}; - -struct ieee80211_radar_info { - int channel; - int radar; - int radar_type; -}; - -#endif /* IEEE80211_COMMON_H */ diff --git a/package/d80211/src/ieee80211_dev.c b/package/d80211/src/ieee80211_dev.c deleted file mode 100644 index 589a7bd01e..0000000000 --- a/package/d80211/src/ieee80211_dev.c +++ /dev/null @@ -1,117 +0,0 @@ -/* - * 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/interrupt.h> -#include <linux/if.h> -#include <linux/if_ether.h> -#include <linux/netdevice.h> -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_led.h" - -struct ieee80211_dev_list { - struct list_head list; - int dev_index; - struct ieee80211_local *local; -}; - -static LIST_HEAD(dev_list); -static DEFINE_SPINLOCK(dev_list_lock); - - -/* Caller must hold dev_list_lock */ -static struct ieee80211_dev_list *__ieee80211_dev_find(int index) -{ - struct ieee80211_dev_list *dev_item; - - list_for_each_entry(dev_item, &dev_list, list) { - if (dev_item->dev_index == index) - return dev_item; - } - return NULL; -} - -int ieee80211_dev_alloc_index(struct ieee80211_local *local) -{ - struct ieee80211_dev_list *dev_item, *new; - int index = 0; - - new = kmalloc(sizeof(struct ieee80211_dev_list), GFP_KERNEL); - if (!new) - return -ENOMEM; - new->local = local; - spin_lock(&dev_list_lock); - list_for_each_entry(dev_item, &dev_list, list) { - if (index < dev_item->dev_index) - break; - index++; - } - new->dev_index = index; - list_add_tail(&new->list, &dev_item->list); - spin_unlock(&dev_list_lock); - local->hw.index = index; - return index; -} - -void ieee80211_dev_free_index(struct ieee80211_local *local) -{ - struct ieee80211_dev_list *dev_item; - - spin_lock(&dev_list_lock); - dev_item = __ieee80211_dev_find(local->hw.index); - if (dev_item) - list_del(&dev_item->list); - spin_unlock(&dev_list_lock); - if (dev_item) - kfree(dev_item); - local->hw.index = -1; -} - -struct ieee80211_local *ieee80211_dev_find(int index) -{ - struct ieee80211_dev_list *dev_item; - - spin_lock(&dev_list_lock); - dev_item = __ieee80211_dev_find(index); - spin_unlock(&dev_list_lock); - return dev_item ? dev_item->local : NULL; -} - -int ieee80211_dev_find_index(struct ieee80211_local *local) -{ - struct ieee80211_dev_list *dev_item; - int index = -1; - - spin_lock(&dev_list_lock); - list_for_each_entry(dev_item, &dev_list, list) { - if (dev_item->local == local) { - index = dev_item->dev_index; - break; - } - } - spin_unlock(&dev_list_lock); - return index; -} - -struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags) -{ - struct ieee80211_local *local; - - local = kzalloc(sizeof(struct ieee80211_local), flags); - if (!local) - return NULL; - local->hw.index = -1; - ieee80211_dev_sysfs_init(local); - return local; -} - -void ieee80211_dev_free(struct ieee80211_local *local) -{ - ieee80211_dev_sysfs_put(local); -} diff --git a/package/d80211/src/ieee80211_i.h b/package/d80211/src/ieee80211_i.h deleted file mode 100644 index aa4aa81052..0000000000 --- a/package/d80211/src/ieee80211_i.h +++ /dev/null @@ -1,730 +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. - */ - -#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 "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 IEEE80211_MAX_SSID_LEN 32 - -#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08) - -struct ieee80211_local; - -#define BIT(x) (1 << (x)) - -#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 - - -/* 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 */ - int hw_mode; - int channel; - int freq; - int rssi; - u8 *wpa_ie; - size_t wpa_ie_len; - u8 *rsn_ie; - size_t rsn_ie_len; - u8 *wmm_ie; - size_t wmm_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; - -}; - - -typedef enum { - TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED -} ieee80211_txrx_result; - -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 fragmented:1; /* whether the MSDU was fragmented */ - union { - struct { - struct ieee80211_tx_control *control; - unsigned int unicast:1; - unsigned int ps_buffered:1; - unsigned int short_preamble:1; - unsigned int probe_last_frag:1; - 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; - int last_frag_rateidx; - int last_frag_hwrate; - int mgmt_interface; - - /* 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; - int sent_ps_buffered; - int queue; - int load; - unsigned int in_scan:1; - /* frame is destined to interface currently processed - * (including multicast frames) */ - unsigned int ra_match:1; - } rx; - } u; -#ifdef CONFIG_HOSTAPD_WPA_TESTING - int wpa_test; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ -}; - -/* Stored in sk_buff->cb */ -struct ieee80211_tx_packet_data { - int ifindex; - unsigned long jiffies; - unsigned int req_tx_status:1; - unsigned int do_not_encrypt:1; - unsigned int requeue:1; - unsigned int mgmt_iface:1; - unsigned int queue:4; -}; - -struct ieee80211_tx_stored_packet { - struct ieee80211_tx_control control; - struct sk_buff *skb; - int num_extra_frag; - struct sk_buff **extra_frag; - int last_frag_rateidx; - int last_frag_hwrate; - unsigned int last_frag_rate_ctrl_probe:1; -}; - -struct ieee80211_passive_scan { - unsigned int in_scan:1; /* this must be cleared before calling - * netif_oper(WAKEUP) */ - unsigned int our_mode_only:1; /* only scan our physical mode a/b/g/etc - */ - int interval; /* time in seconds between scans */ - int time; /* time in microseconds to scan for */ - int channel; /* channel to be scanned */ - int tries; - - struct ieee80211_hw_mode *mode; - int chan_idx; - - int freq; - int rx_packets; - int rx_beacon; - int txrx_count; - - struct timer_list timer; - - struct sk_buff *skb; /* skb to transmit before changing channels, - * maybe null for none */ - struct ieee80211_tx_control tx_control; - - unsigned int num_scans; -}; - -typedef ieee80211_txrx_result (*ieee80211_tx_handler) -(struct ieee80211_txrx_data *tx); - -typedef ieee80211_txrx_result (*ieee80211_rx_handler) -(struct ieee80211_txrx_data *rx); - -struct ieee80211_if_ap { - u8 *beacon_head, *beacon_tail; - int beacon_head_len, beacon_tail_len; - - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t ssid_len; - u8 *generic_elem; - size_t generic_elem_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_period, 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 { - u8 id; -}; - -struct ieee80211_if_sta { - enum { - IEEE80211_DISABLED, IEEE80211_AUTHENTICATE, - IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED, - IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED - } state; - struct delayed_work work; - u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; - u8 ssid[IEEE80211_MAX_SSID_LEN]; - size_t 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 ssid_set:1; - unsigned int bssid_set:1; - unsigned int prev_bssid_set:1; - unsigned int authenticated:1; - unsigned int associated:1; - unsigned int probereq_poll:1; - unsigned int use_protection:1; - unsigned int create_ibss:1; - unsigned int mixed_cell:1; - unsigned int wmm_enabled:1; - - int key_mgmt; - 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; - - int wmm_last_param_set; -}; - - -struct ieee80211_sub_if_data { - struct list_head list; - unsigned int type; - - struct net_device *dev; - struct ieee80211_local *local; - - int mc_count; - unsigned int allmulti:1; - unsigned int promisc:1; - - struct net_device_stats stats; - int drop_unencrypted; - int eapol; /* 0 = process EAPOL frames as normal data frames, - * 1 = send EAPOL frames through wlan#ap to hostapd - * (default) */ - int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized - * port */ - - /* 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; - struct kset key_kset; - - 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; - } u; - int channel_use; - int channel_use_raw; - - struct attribute_group *sysfs_group; -}; - -#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) - -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; - - /* List of registered struct ieee80211_hw_mode */ - struct list_head modes_list; - - struct net_device *mdev; /* wmaster# - "master" 802.11 device */ - struct net_device *apdev; /* wlan#ap - management frames (hostapd) */ - int open_count; - int monitors; - struct iw_statistics wstats; - - struct class_device class_dev; - - enum { - IEEE80211_DEV_UNITIALIZED = 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; - enum { - ieee80211_rx_msg = 1, - ieee80211_tx_status_msg = 2 - } ieee80211_msg_enum; - - spinlock_t generic_lock; - /* Station data structures */ - struct kset sta_kset; - spinlock_t sta_lock; /* mutex for STA data structures */ - int num_sta; /* number of stations in sta_list */ - struct list_head sta_list; - struct list_head deleted_sta_list; - struct sta_info *sta_hash[STA_HASH_SIZE]; - struct timer_list sta_cleanup; - - unsigned long state[NUM_TX_DATA_QUEUES]; - struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES]; - struct tasklet_struct tx_pending_tasklet; - - int mc_count; /* total count of multicast entries in all interfaces */ - int iff_allmultis, iff_promiscs; - /* number of interfaces with corresponding IFF_ flags */ - - /* Current rate table. This is a pointer to hw->modes structure. */ - struct ieee80211_rate *curr_rates; - int num_curr_rates; - - struct rate_control_ref *rate_ctrl; - - int next_mode; /* MODE_IEEE80211* - * The mode preference for next channel change. This is - * used to select .11g vs. .11b channels (or 4.9 GHz vs. - * .11a) when the channel number is not unique. */ - - /* Supported and basic rate filters for different modes. These are - * pointers to -1 terminated lists and rates in 100 kbps units. */ - int *supp_rates[NUM_IEEE80211_MODES]; - int *basic_rates[NUM_IEEE80211_MODES]; - - int rts_threshold; - int cts_protect_erp_frames; - int fragmentation_threshold; - int short_retry_limit; /* dot11ShortRetryLimit */ - int long_retry_limit; /* dot11LongRetryLimit */ - int short_preamble; /* use short preamble with IEEE 802.11b */ - - struct crypto_blkcipher *wep_tx_tfm; - struct crypto_blkcipher *wep_rx_tfm; - u32 wep_iv; - int key_tx_rx_threshold; /* number of times any key can be used in TX - * or RX before generating a rekey - * notification; 0 = notification disabled. */ - - int bridge_packets; /* bridge packets between associated stations and - * deliver multicast frames both back to wireless - * media and to the local net stack */ - - struct ieee80211_passive_scan scan; - - - ieee80211_rx_handler *rx_pre_handlers; - ieee80211_rx_handler *rx_handlers; - ieee80211_tx_handler *tx_handlers; - - spinlock_t sub_if_lock; /* mutex for STA data structures */ - struct list_head sub_if_list; - int sta_scanning; - struct ieee80211_hw_mode *scan_hw_mode; - int scan_channel_idx; - enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state; - unsigned long last_scan_completed; - struct delayed_work scan_work; - struct net_device *scan_dev; - int scan_oper_channel; - int scan_oper_channel_val; - int scan_oper_power_level; - int scan_oper_freq; - int scan_oper_phymode; - int scan_oper_antenna_max; - 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; -#define IEEE80211_SCAN_MATCH_SSID BIT(0) -#define IEEE80211_SCAN_WPA_ONLY BIT(1) -#define IEEE80211_SCAN_EXTRA_INFO BIT(2) - int scan_flags; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - u32 wpa_trigger; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - /* 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_D80211_LEDS - int tx_led_counter, rx_led_counter; - struct led_trigger *tx_led, *rx_led; - char tx_led_name[32], rx_led_name[32]; -#endif - - u32 channel_use; - u32 channel_use_raw; - u32 stat_time; - struct timer_list stat_timer; - - struct proc_dir_entry *proc, *proc_sta, *proc_iface; - - struct work_struct sta_proc_add; - - enum { - STA_ANTENNA_SEL_AUTO = 0, - STA_ANTENNA_SEL_SW_CTRL = 1, - STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2 - } sta_antenna_sel; - - int rate_ctrl_num_up, rate_ctrl_num_down; - -#ifdef CONFIG_D80211_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_D80211_DEBUG_COUNTERS */ -#define I802_DEBUG_INC(c) do { } while (0) -#endif /* CONFIG_D80211_DEBUG_COUNTERS */ - - - int default_wep_only; /* only default WEP keys are used with this - * interface; this is used to decide when hwaccel - * can be used with default keys */ - int total_ps_buffered; /* total number of all buffered unicast and - * multicast packets for power saving stations - */ - int allow_broadcast_always; /* whether to allow TX of broadcast frames - * even when there are no associated STAs - */ - - int wifi_wme_noack_test; - unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */ - - unsigned int enabled_modes; /* bitfield of allowed modes; - * (1 << MODE_*) */ - unsigned int hw_modes; /* bitfield of supported hardware modes; - * (1 << MODE_*) */ - - int user_space_mlme; -}; - -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, int aid) -{ - /* - * This format has ben 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, int aid) -{ - spin_lock_bh(&local->sta_lock); - __bss_tim_set(bss, aid); - spin_unlock_bh(&local->sta_lock); -} - -static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid) -{ - /* - * This format has ben 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, int aid) -{ - spin_lock_bh(&local->sta_lock); - __bss_tim_clear(bss, aid); - spin_unlock_bh(&local->sta_lock); -} - -/* ieee80211.c */ -void ieee80211_release_hw(struct ieee80211_local *local); -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); -struct ieee80211_key_conf * -ieee80211_key_data2conf(struct ieee80211_local *local, - struct ieee80211_key *data); -struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, - int idx, size_t key_len, gfp_t flags); -void ieee80211_key_free(struct ieee80211_key *key); -void ieee80211_key_release(struct kobject *kobj); -void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb, - struct ieee80211_rx_status *status, u32 msg_type); -void ieee80211_prepare_rates(struct ieee80211_local *local); -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); -void ieee80211_if_mgmt_setup(struct net_device *dev); -void ieee80211_if_shutdown(struct net_device *dev); -int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, - const char *name); -struct net_device_stats *ieee80211_dev_stats(struct net_device *dev); - -/* ieee80211_ioctl.c */ -int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); -extern const struct iw_handler_def ieee80211_iw_handler_def; -extern const struct iw_handler_def ieee80211_iw_master_handler_def; - -/* Set hw encryption from ieee80211 */ -int ieee80211_set_hw_encryption(struct net_device *dev, - struct sta_info *sta, u8 addr[ETH_ALEN], - struct ieee80211_key *key); -void ieee80211_update_default_wep_only(struct ieee80211_local *local); - -/* ieee80211_scan.c */ -void ieee80211_init_scan(struct ieee80211_local *local); -void ieee80211_stop_scan(struct ieee80211_local *local); - - - -/* 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_init_client(struct net_device *dev); -/* ieee80211_sta.c */ -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); -int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len); -void 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); - -/* ieee80211_dev.c */ -int ieee80211_dev_alloc_index(struct ieee80211_local *local); -void ieee80211_dev_free_index(struct ieee80211_local *local); -struct ieee80211_local *ieee80211_dev_find(int index); -int ieee80211_dev_find_index(struct ieee80211_local *local); -struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags); -void ieee80211_dev_free(struct ieee80211_local *local); - -/* ieee80211_iface.c */ -int ieee80211_if_add(struct net_device *dev, const char *name, - int format, struct net_device **new_dev); -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); -void ieee80211_if_del(struct net_device *dev); -int ieee80211_if_remove(struct net_device *dev, const char *name, int id); -void ieee80211_if_free(struct net_device *dev); -void ieee80211_if_flush(struct net_device *dev); -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata); -int ieee80211_if_add_mgmt(struct ieee80211_local *local); -void ieee80211_if_del_mgmt(struct ieee80211_local *local); - -/* ieee80211_sysfs.c */ -int ieee80211_sysfs_add_netdevice(struct net_device *dev); -void ieee80211_sysfs_remove_netdevice(struct net_device *dev); -void ieee80211_dev_sysfs_init(struct ieee80211_local *local); -void ieee80211_dev_sysfs_put(struct ieee80211_local *local); -int ieee80211_dev_sysfs_add(struct ieee80211_local *local); -void ieee80211_dev_sysfs_del(struct ieee80211_local *local); -int ieee80211_sysfs_init(void); -void ieee80211_sysfs_deinit(void); -int ieee80211_sysfs_change_if_type(struct net_device *dev); - -/* ieee80211_sysfs_sta.c */ -int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local); -void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local); -int ieee80211_sta_sysfs_add(struct sta_info *sta); -void ieee80211_sta_sysfs_remove(struct sta_info *sta); -int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata); -void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata); -void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset); -int ieee80211_key_sysfs_add(struct ieee80211_key *key); -void ieee80211_key_sysfs_remove(struct ieee80211_key *key); -int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata); -void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata); - -#endif /* IEEE80211_I_H */ diff --git a/package/d80211/src/ieee80211_iface.c b/package/d80211/src/ieee80211_iface.c deleted file mode 100644 index 3b2d259d13..0000000000 --- a/package/d80211/src/ieee80211_iface.c +++ /dev/null @@ -1,372 +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/d80211.h> -#include "ieee80211_i.h" -#include "sta_info.h" - -void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata) -{ - int i; - - /* Default values for sub-interface parameters */ - sdata->drop_unencrypted = 0; - sdata->eapol = 1; - for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) - skb_queue_head_init(&sdata->fragments[i].skb_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, - int format, struct net_device **new_dev) -{ - struct net_device *ndev, *tmp_dev; - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = NULL; - int ret; - int i; - - ASSERT_RTNL(); - ndev = *new_dev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), - "", ieee80211_if_setup); - if (!ndev) - return -ENOMEM; - - ndev->ieee80211_ptr = local; - if (strlen(name) == 0) { - i = 0; - do { - snprintf(ndev->name, sizeof(ndev->name), "%s.%d", - dev->name, i++); - tmp_dev = dev_get_by_name(ndev->name); - if (!tmp_dev) - break; - dev_put(tmp_dev); - } while (i < 10000); - } else if (format) { - ret = dev_alloc_name(ndev, name); - if (ret < 0) - goto fail; - } else { - snprintf(ndev->name, IFNAMSIZ, "%s", name); - } - - memcpy(ndev->dev_addr, local->hw.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; - ndev->flags = dev->flags & IFF_MULTICAST; - SET_NETDEV_DEV(ndev, local->hw.dev); - - sdata = IEEE80211_DEV_TO_SUB_IF(ndev); - sdata->type = IEEE80211_IF_TYPE_AP; - sdata->dev = ndev; - sdata->local = local; - ieee80211_if_sdata_init(sdata); - - ret = register_netdevice(ndev); - if (ret) - goto fail; - ret = ieee80211_sysfs_add_netdevice(ndev); - if (ret) { - /* ndev will be freed by ndev->destructor */ - unregister_netdevice(ndev); - *new_dev = NULL; - return ret; - } - - list_add(&sdata->list, &local->sub_if_list); - ieee80211_update_default_wep_only(local); - - return 0; - -fail: - free_netdev(ndev); - *new_dev = NULL; - return ret; -} - -int ieee80211_if_add_mgmt(struct ieee80211_local *local) -{ - struct net_device *ndev; - struct ieee80211_sub_if_data *nsdata; - int ret; - - ASSERT_RTNL(); - - ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), "", - ieee80211_if_mgmt_setup); - if (!ndev) - return -ENOMEM; - ret = dev_alloc_name(ndev, "wmgmt%d"); - if (ret < 0) - goto fail; - - ndev->ieee80211_ptr = local; - memcpy(ndev->dev_addr, local->hw.perm_addr, ETH_ALEN); - SET_NETDEV_DEV(ndev, local->hw.dev); - - nsdata = IEEE80211_DEV_TO_SUB_IF(ndev); - nsdata->type = IEEE80211_IF_TYPE_MGMT; - nsdata->dev = ndev; - nsdata->local = local; - ieee80211_if_sdata_init(nsdata); - - ret = register_netdevice(ndev); - if (ret) - goto fail; - ret = ieee80211_sysfs_add_netdevice(ndev); - if (ret) - goto fail_sysfs; - if (local->open_count > 0) - dev_open(ndev); - local->apdev = ndev; - return 0; - -fail_sysfs: - unregister_netdevice(ndev); -fail: - free_netdev(ndev); - return ret; -} - -void ieee80211_if_del_mgmt(struct ieee80211_local *local) -{ - struct net_device *apdev; - - ASSERT_RTNL(); - apdev = local->apdev; - ieee80211_sysfs_remove_netdevice(apdev); - local->apdev = NULL; - unregister_netdevice(apdev); -} - -void ieee80211_if_set_type(struct net_device *dev, int type) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct ieee80211_local *local = dev->ieee80211_ptr; - - sdata->type = type; - switch (type) { - case IEEE80211_IF_TYPE_WDS: - sdata->bss = NULL; - break; - case IEEE80211_IF_TYPE_VLAN: - break; - case IEEE80211_IF_TYPE_AP: - sdata->u.ap.dtim_period = 2; - 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; - 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_DELAYED_WORK(&ifsta->work, ieee80211_sta_work); - - ifsta->capab = WLAN_CAPABILITY_ESS; - ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN | - IEEE80211_AUTH_ALG_SHARED_KEY; - ifsta->create_ibss = 1; - ifsta->wmm_enabled = 1; - - msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev); - sdata->bss = &msdata->u.ap; - break; - } - case IEEE80211_IF_TYPE_MNTR: - dev->type = ARPHRD_IEEE80211_PRISM; - break; - default: - printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x", - dev->name, __FUNCTION__, type); - } - ieee80211_sysfs_change_if_type(dev); - ieee80211_update_default_wep_only(local); -} - -/* Must be called with rtnl lock held. */ -void ieee80211_if_reinit(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - struct sta_info *sta; - int i; - - ASSERT_RTNL(); - ieee80211_if_sdata_deinit(sdata); - for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - if (!sdata->keys[i]) - continue; -#if 0 - /* The interface is down at the moment, so there is not - * really much point in disabling the keys at this point. */ - memset(addr, 0xff, ETH_ALEN); - if (local->ops->set_key) - local->ops->set_key(local_to_hw(local), DISABLE_KEY, addr, - local->keys[i], 0); -#endif - ieee80211_key_free(sdata->keys[i]); - sdata->keys[i] = NULL; - } - - switch (sdata->type) { - 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->sub_if_list, 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); - __ieee80211_if_del(local, tsdata); - } - } - - kfree(sdata->u.ap.beacon_head); - kfree(sdata->u.ap.beacon_tail); - kfree(sdata->u.ap.generic_elem); - - if (dev != local->mdev) { - struct sk_buff *skb; - 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_put(sta); - sta_info_free(sta, 0); - } else { -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Someone had deleted my STA " - "entry for the WDS link\n", dev->name); -#endif /* CONFIG_D80211_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; - } - - /* 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; - - list_del(&sdata->list); - ieee80211_sysfs_remove_netdevice(dev); - 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 = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata, *n; - - ASSERT_RTNL(); - - list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) { - if ((sdata->type == id || id == -1) && - strcmp(name, sdata->dev->name) == 0 && - sdata->dev != local->mdev) { - __ieee80211_if_del(local, sdata); - ieee80211_update_default_wep_only(local); - return 0; - } - } - return -ENODEV; -} - -void ieee80211_if_free(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - /* local->apdev must be NULL when freeing management interface */ - BUG_ON(dev == local->apdev); - ieee80211_if_sdata_deinit(sdata); - free_netdev(dev); -} - -/* Must be called with rtnl lock held. */ -void ieee80211_if_flush(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata, *n; - - ASSERT_RTNL(); - list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) { - __ieee80211_if_del(local, sdata); - } -} - -void ieee80211_if_del(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - rtnl_lock(); - if (sdata->type == IEEE80211_IF_TYPE_MGMT) - ieee80211_if_del_mgmt(local); - else - __ieee80211_if_del(local, sdata); - rtnl_unlock(); -} diff --git a/package/d80211/src/ieee80211_ioctl.c b/package/d80211/src/ieee80211_ioctl.c deleted file mode 100644 index 5a21b2d4d8..0000000000 --- a/package/d80211/src/ieee80211_ioctl.c +++ /dev/null @@ -1,3267 +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/d80211.h> -#include "ieee80211_i.h" -#include "hostapd_ioctl.h" -#include "ieee80211_rate.h" -#include "wpa.h" -#include "aes_ccm.h" - - -static int ieee80211_regdom = 0x10; /* FCC */ -module_param(ieee80211_regdom, int, 0444); -MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK"); - -/* - * If firmware is upgraded by the vendor, additional channels can be used based - * on the new Japanese regulatory rules. This is indicated by setting - * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel - * module. - */ -static int ieee80211_japan_5ghz /* = 0 */; -module_param(ieee80211_japan_5ghz, int, 0444); -MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz"); - - -static int ieee80211_ioctl_set_beacon(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len, - int flag) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_ap *ap; - u8 **b_head, **b_tail; - int *b_head_len, *b_tail_len; - int len; - - len = ((char *) param->u.beacon.data - (char *) param) + - param->u.beacon.head_len + param->u.beacon.tail_len; - - if (param_len > len) - param_len = len; - else if (param_len != len) - return -EINVAL; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_AP) - return -EINVAL; - ap = &sdata->u.ap; - - switch (flag) { - case 0: - b_head = &ap->beacon_head; - b_tail = &ap->beacon_tail; - b_head_len = &ap->beacon_head_len; - b_tail_len = &ap->beacon_tail_len; - break; - default: - printk(KERN_DEBUG "%s: unknown beacon flag %d\n", - dev->name, flag); - return -EINVAL; - } - - kfree(*b_head); - kfree(*b_tail); - *b_head = NULL; - *b_tail = NULL; - - *b_head_len = param->u.beacon.head_len; - *b_tail_len = param->u.beacon.tail_len; - - *b_head = kmalloc(*b_head_len, GFP_KERNEL); - if (*b_head) - memcpy(*b_head, param->u.beacon.data, *b_head_len); - else { - printk(KERN_DEBUG "%s: failed to allocate beacon_head\n", - dev->name); - return -ENOMEM; - } - - if (*b_tail_len > 0) { - *b_tail = kmalloc(*b_tail_len, GFP_KERNEL); - if (*b_tail) - memcpy(*b_tail, param->u.beacon.data + (*b_head_len), - (*b_tail_len)); - else { - printk(KERN_DEBUG "%s: failed to allocate " - "beacon_tail\n", dev->name); - return -ENOMEM; - } - } - - return ieee80211_if_config_beacon(dev); -} - - -static int ieee80211_ioctl_get_hw_features(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - u8 *pos = param->u.hw_features.data; - int left = param_len - (pos - (u8 *) param); - int i; - struct hostapd_ioctl_hw_modes_hdr *hdr; - struct ieee80211_rate_data *rate; - struct ieee80211_channel_data *chan; - struct ieee80211_hw_mode *mode; - - param->u.hw_features.flags = 0; - if (local->hw.flags & IEEE80211_HW_DATA_NULLFUNC_ACK) - param->u.hw_features.flags |= HOSTAP_HW_FLAG_NULLFUNC_OK; - - param->u.hw_features.num_modes = 0; - list_for_each_entry(mode, &local->modes_list, list) { - int clen, rlen; - - param->u.hw_features.num_modes++; - clen = mode->num_channels * sizeof(struct ieee80211_channel_data); - rlen = mode->num_rates * sizeof(struct ieee80211_rate_data); - if (left < sizeof(*hdr) + clen + rlen) - return -E2BIG; - left -= sizeof(*hdr) + clen + rlen; - - hdr = (struct hostapd_ioctl_hw_modes_hdr *) pos; - hdr->mode = mode->mode; - hdr->num_channels = mode->num_channels; - hdr->num_rates = mode->num_rates; - - pos = (u8 *) (hdr + 1); - chan = (struct ieee80211_channel_data *) pos; - for (i = 0; i < mode->num_channels; i++) { - chan[i].chan = mode->channels[i].chan; - chan[i].freq = mode->channels[i].freq; - chan[i].flag = mode->channels[i].flag; - } - pos += clen; - - rate = (struct ieee80211_rate_data *) pos; - for (i = 0; i < mode->num_rates; i++) { - rate[i].rate = mode->rates[i].rate; - rate[i].flags = mode->rates[i].flags; - } - pos += rlen; - } - - return 0; -} - - -static int ieee80211_ioctl_scan(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - if (!local->ops->passive_scan) - return -EOPNOTSUPP; - - if ((param->u.scan.now == 1) && (local->scan.in_scan == 1)) - return -EBUSY; - - if (param->u.scan.our_mode_only >= 0) - local->scan.our_mode_only = param->u.scan.our_mode_only; - if (param->u.scan.interval >= 0) - local->scan.interval = param->u.scan.interval; - if (param->u.scan.listen >= 0) - local->scan.time = param->u.scan.listen; - if (param->u.scan.channel > 0) - local->scan.channel = param->u.scan.channel; - if (param->u.scan.now == 1) { - local->scan.in_scan = 0; - mod_timer(&local->scan.timer, jiffies); - } - - param->u.scan.our_mode_only = local->scan.our_mode_only; - param->u.scan.interval = local->scan.interval; - param->u.scan.listen = local->scan.time; - if (local->scan.in_scan == 1) - param->u.scan.last_rx = -1; - else { - param->u.scan.last_rx = local->scan.rx_packets; - local->scan.rx_packets = -1; - } - param->u.scan.channel = - local->scan.mode->channels[local->scan.chan_idx].chan; - - return 0; -} - - -static int ieee80211_ioctl_flush(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - sta_info_flush(local, NULL); - return 0; -} - - -/* 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 net_device *dev, - const u8 *addr) -{ - 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, 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 = dev; - skb->protocol = eth_type_trans(skb, dev); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - - -static int ieee80211_ioctl_add_sta(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - u32 rates; - int i, j; - struct ieee80211_sub_if_data *sdata; - int add_key_entry = 1; - - /* Prevent a race with changing the rate control algorithm */ - if (!netif_running(dev)) - return -ENETDOWN; - - sta = sta_info_get(local, param->sta_addr); - - if (!sta) { - sta = sta_info_add(local, dev, param->sta_addr, GFP_KERNEL); - if (!sta) - return -ENOMEM; - } - - if (sta->dev != dev) { - /* Binding STA to a new interface, so remove all references to - * the old BSS. */ - spin_lock_bh(&local->sta_lock); - sta_info_remove_aid_ptr(sta); - spin_unlock_bh(&local->sta_lock); - } - - /* TODO - * We "steal" the device in case someone owns it - * This will hurt WDS links and such when we have a - * WDS link and a client associating from the same station - */ - sta->dev = dev; - sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev); - - sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; - sta->aid = param->u.add_sta.aid; - if (sta->aid > IEEE80211_MAX_AID) - sta->aid = 0; - sta->listen_interval = param->u.add_sta.listen_interval; - - rates = 0; - for (i = 0; i < sizeof(param->u.add_sta.supp_rates); i++) { - int rate = (param->u.add_sta.supp_rates[i] & 0x7f) * 5; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO || - local->hw.conf.phymode == MODE_ATHEROS_TURBOG) - rate *= 2; - for (j = 0; j < local->num_curr_rates; j++) { - if (local->curr_rates[j].rate == rate) - rates |= BIT(j); - } - - } - sta->supp_rates = rates; - - rate_control_rate_init(sta, local); - - if (param->u.add_sta.wds_flags & 0x01) - sta->flags |= WLAN_STA_WDS; - else - sta->flags &= ~WLAN_STA_WDS; - - if (add_key_entry && !sta->key && !sdata->default_key && - local->ops->set_key) { - struct ieee80211_key_conf conf; - /* Add key cache entry with NULL key type because this may used - * for TX filtering. */ - memset(&conf, 0, sizeof(conf)); - conf.hw_key_idx = HW_KEY_IDX_INVALID; - conf.alg = ALG_NULL; - conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; - if (local->ops->set_key(local_to_hw(local), SET_KEY, - sta->addr, &conf, sta->aid)) { - sta->key_idx_compression = HW_KEY_IDX_INVALID; - } else { - sta->key_idx_compression = conf.hw_key_idx; - } - } - - sta_info_put(sta); - - if (sdata->type == IEEE80211_IF_TYPE_AP || - sdata->type == IEEE80211_IF_TYPE_VLAN) - ieee80211_send_layer2_update(dev, param->sta_addr); - - return 0; -} - - -static int ieee80211_ioctl_remove_sta(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - - sta = sta_info_get(local, param->sta_addr); - if (sta) { - sta_info_put(sta); - sta_info_free(sta, 0); - } - - return sta ? 0 : -ENOENT; -} - - -static int ieee80211_ioctl_get_dot11counterstable(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_low_level_stats stats; - - memset(&stats, 0, sizeof(stats)); - if (local->ops->get_stats) - local->ops->get_stats(local_to_hw(local), &stats); - param->u.dot11CountersTable.dot11TransmittedFragmentCount = - local->dot11TransmittedFragmentCount; - param->u.dot11CountersTable.dot11MulticastTransmittedFrameCount = - local->dot11MulticastTransmittedFrameCount; - param->u.dot11CountersTable.dot11ReceivedFragmentCount = - local->dot11ReceivedFragmentCount; - param->u.dot11CountersTable.dot11MulticastReceivedFrameCount = - local->dot11MulticastReceivedFrameCount; - param->u.dot11CountersTable.dot11TransmittedFrameCount = - local->dot11TransmittedFrameCount; - param->u.dot11CountersTable.dot11FCSErrorCount = - stats.dot11FCSErrorCount; - param->u.dot11CountersTable.dot11ACKFailureCount = - stats.dot11ACKFailureCount; - param->u.dot11CountersTable.dot11RTSFailureCount = - stats.dot11RTSFailureCount; - param->u.dot11CountersTable.dot11RTSSuccessCount = - stats.dot11RTSSuccessCount; - - return 0; -} - - -static int ieee80211_ioctl_get_info_sta(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - - if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && - param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && - param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { - struct net_device_stats *stats; - - stats = ieee80211_dev_stats(local->mdev); - param->u.get_info_sta.rx_bytes = stats->rx_bytes; - param->u.get_info_sta.tx_bytes = stats->tx_bytes; - /* go through all STAs and get STA with lowest max. rate */ - param->u.get_info_sta.current_tx_rate = - local->curr_rates[sta_info_min_txrate_get(local)].rate; - return 0; - } - - sta = sta_info_get(local, param->sta_addr); - - if (!sta) - return -ENOENT; - - param->u.get_info_sta.inactive_msec = - jiffies_to_msecs(jiffies - sta->last_rx); - param->u.get_info_sta.rx_packets = sta->rx_packets; - param->u.get_info_sta.tx_packets = sta->tx_packets; - param->u.get_info_sta.rx_bytes = sta->rx_bytes; - param->u.get_info_sta.tx_bytes = sta->tx_bytes; - param->u.get_info_sta.channel_use = sta->channel_use; - param->u.get_info_sta.flags = sta->flags; - if (sta->txrate >= 0 && sta->txrate < local->num_curr_rates) - param->u.get_info_sta.current_tx_rate = - local->curr_rates[sta->txrate].rate; - param->u.get_info_sta.num_ps_buf_frames = - skb_queue_len(&sta->ps_tx_buf); - param->u.get_info_sta.tx_retry_failed = sta->tx_retry_failed; - param->u.get_info_sta.tx_retry_count = sta->tx_retry_count; - param->u.get_info_sta.last_rssi = sta->last_rssi; - param->u.get_info_sta.last_ack_rssi = sta->last_ack_rssi[2]; - - sta_info_put(sta); - - return 0; -} - - -static int ieee80211_ioctl_set_flags_sta(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - - sta = sta_info_get(local, param->sta_addr); - if (sta) { - sta->flags |= param->u.set_flags_sta.flags_or; - sta->flags &= param->u.set_flags_sta.flags_and; - if (local->ops->set_port_auth && - (param->u.set_flags_sta.flags_or & WLAN_STA_AUTHORIZED) && - local->ops->set_port_auth(local_to_hw(local), sta->addr, 1)) - printk(KERN_DEBUG "%s: failed to set low-level driver " - "PAE state (authorized) for " MAC_FMT "\n", - dev->name, MAC_ARG(sta->addr)); - if (local->ops->set_port_auth && - !(param->u.set_flags_sta.flags_and & WLAN_STA_AUTHORIZED) && - local->ops->set_port_auth(local_to_hw(local), sta->addr, 0)) - printk(KERN_DEBUG "%s: failed to set low-level driver " - "PAE state (unauthorized) for " MAC_FMT "\n", - dev->name, MAC_ARG(sta->addr)); - sta_info_put(sta); - } - - return sta ? 0 : -ENOENT; -} - - -int ieee80211_set_hw_encryption(struct net_device *dev, - struct sta_info *sta, u8 addr[ETH_ALEN], - struct ieee80211_key *key) -{ - struct ieee80211_key_conf *keyconf = NULL; - struct ieee80211_local *local = dev->ieee80211_ptr; - int rc = 0; - - /* default to sw encryption; this will be cleared by low-level - * driver if the hw supports requested encryption */ - if (key) - key->force_sw_encrypt = 1; - - if (key && local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, key))) { - if (local->ops->set_key(local_to_hw(local), SET_KEY, addr, - keyconf, sta ? sta->aid : 0)) { - rc = HOSTAP_CRYPT_ERR_KEY_SET_FAILED; - key->force_sw_encrypt = 1; - key->hw_key_idx = HW_KEY_IDX_INVALID; - } else { - key->force_sw_encrypt = - !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT); - key->hw_key_idx = - keyconf->hw_key_idx; - - } - } - kfree(keyconf); - - return rc; -} - - -static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, - int idx, int alg, int set_tx_key, int *err, - const u8 *_key, size_t key_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int ret = 0; - struct sta_info *sta; - struct ieee80211_key *key, *old_key; - int try_hwaccel = 1; - struct ieee80211_key_conf *keyconf; - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sta_addr[0] == 0xff && sta_addr[1] == 0xff && - sta_addr[2] == 0xff && sta_addr[3] == 0xff && - sta_addr[4] == 0xff && sta_addr[5] == 0xff) { - sta = NULL; - if (idx >= NUM_DEFAULT_KEYS) { - printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n", - dev->name, idx); - return -EINVAL; - } - key = sdata->keys[idx]; - - /* TODO: consider adding hwaccel support for these; at least - * Atheros key cache should be able to handle this since AP is - * only transmitting frames with default keys. */ - /* FIX: hw key cache can be used when only one virtual - * STA is associated with each AP. If more than one STA - * is associated to the same AP, software encryption - * must be used. This should be done automatically - * based on configured station devices. For the time - * being, this can be only set at compile time. */ - } else { - set_tx_key = 0; - if (idx != 0) { - 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) { - if (err) - *err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR; -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: set_encrypt - unknown addr " - MAC_FMT "\n", - dev->name, MAC_ARG(sta_addr)); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - - return -ENOENT; - } - - key = sta->key; - } - - /* FIX: - * Cannot configure default hwaccel keys with WEP algorithm, if - * any of the virtual interfaces is using static WEP - * configuration because hwaccel would otherwise try to decrypt - * these frames. - * - * For now, just disable WEP hwaccel for broadcast when there is - * possibility of conflict with default keys. This can maybe later be - * optimized by using non-default keys (at least with Atheros ar521x). - */ - if (!sta && alg == ALG_WEP && !local->default_wep_only && - sdata->type != IEEE80211_IF_TYPE_IBSS && - sdata->type != IEEE80211_IF_TYPE_AP) { - try_hwaccel = 0; - } - - if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) { - /* Software encryption cannot be used with devices that hide - * encryption from the host system, so always try to use - * hardware acceleration with such devices. */ - try_hwaccel = 1; - } - - if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) && - alg == ALG_TKIP) { - if (sta && (sta->flags & WLAN_STA_WME)) { - /* Hardware does not support hwaccel with TKIP when using WMM. - */ - try_hwaccel = 0; - } - else if (sdata->type == IEEE80211_IF_TYPE_STA) { - sta = sta_info_get(local, sdata->u.sta.bssid); - if (sta) { - if (sta->flags & WLAN_STA_WME) { - try_hwaccel = 0; - } - sta_info_put(sta); - sta = NULL; - } - } - } - - if (alg == ALG_NONE) { - keyconf = NULL; - if (try_hwaccel && key && - key->hw_key_idx != HW_KEY_IDX_INVALID && - local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, key)) != NULL && - local->ops->set_key(local_to_hw(local), DISABLE_KEY, - sta_addr, keyconf, sta ? sta->aid : 0)) { - if (err) - *err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED; - printk(KERN_DEBUG "%s: set_encrypt - low-level disable" - " failed\n", dev->name); - ret = -EINVAL; - } - kfree(keyconf); - - if (key && sdata->default_key == key) { - ieee80211_key_sysfs_remove_default(sdata); - sdata->default_key = NULL; - } - ieee80211_key_sysfs_remove(key); - if (sta) - sta->key = NULL; - else - sdata->keys[idx] = NULL; - ieee80211_key_free(key); - key = NULL; - } else { - old_key = key; - key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len, - GFP_KERNEL); - if (!key) { - ret = -ENOMEM; - goto err_out; - } - - /* default to sw encryption; low-level driver sets these if the - * requested encryption is supported */ - key->hw_key_idx = HW_KEY_IDX_INVALID; - key->force_sw_encrypt = 1; - - key->alg = alg; - key->keyidx = idx; - key->keylen = key_len; - memcpy(key->key, _key, key_len); - if (set_tx_key) - key->default_tx_key = 1; - - 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->key); - if (!key->u.ccmp.tfm) { - ret = -ENOMEM; - goto err_free; - } - } - - if (old_key && sdata->default_key == old_key) { - ieee80211_key_sysfs_remove_default(sdata); - sdata->default_key = NULL; - } - ieee80211_key_sysfs_remove(old_key); - if (sta) - sta->key = key; - else - sdata->keys[idx] = key; - ieee80211_key_free(old_key); - if (sta) - key->kobj.parent = &sta->kobj; - ret = ieee80211_key_sysfs_add(key); - if (ret) - goto err_null; - - if (try_hwaccel && - (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP)) { - int e = ieee80211_set_hw_encryption(dev, sta, sta_addr, - key); - if (err) - *err = e; - } - } - - if (set_tx_key || (!sta && !sdata->default_key && key)) { - sdata->default_key = key; - if (ieee80211_key_sysfs_add_default(sdata)) - printk(KERN_WARNING "%s: cannot create symlink to " - "default key\n", dev->name); - if (local->ops->set_key_idx && - local->ops->set_key_idx(local_to_hw(local), idx)) - printk(KERN_DEBUG "%s: failed to set TX key idx for " - "low-level driver\n", dev->name); - } - - if (sta) - sta_info_put(sta); - - return 0; - -err_null: - if (sta) - sta->key = NULL; - else - sdata->keys[idx] = NULL; -err_free: - ieee80211_key_free(key); -err_out: - if (sta) - sta_info_put(sta); - return ret; -} - - -static int ieee80211_ioctl_set_encryption(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - int alg; - - param->u.crypt.err = 0; - param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0'; - - if (param_len < - (int) ((char *) param->u.crypt.key - (char *) param) + - param->u.crypt.key_len) { - printk(KERN_DEBUG "%s: set_encrypt - invalid param_lem\n", - dev->name); - return -EINVAL; - } - - if (strcmp(param->u.crypt.alg, "none") == 0) - alg = ALG_NONE; - else if (strcmp(param->u.crypt.alg, "WEP") == 0) - alg = ALG_WEP; - else if (strcmp(param->u.crypt.alg, "TKIP") == 0) { - if (param->u.crypt.key_len != ALG_TKIP_KEY_LEN) { - printk(KERN_DEBUG "%s: set_encrypt - invalid TKIP key " - "length %d\n", dev->name, - param->u.crypt.key_len); - return -EINVAL; - } - alg = ALG_TKIP; - } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) { - if (param->u.crypt.key_len != ALG_CCMP_KEY_LEN) { - printk(KERN_DEBUG "%s: set_encrypt - invalid CCMP key " - "length %d\n", dev->name, - param->u.crypt.key_len); - return -EINVAL; - } - alg = ALG_CCMP; - } else { - param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG; - printk(KERN_DEBUG "%s: set_encrypt - unknown alg\n", - dev->name); - return -EINVAL; - } - - return ieee80211_set_encryption( - dev, param->sta_addr, - param->u.crypt.idx, alg, - param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY, - ¶m->u.crypt.err, param->u.crypt.key, - param->u.crypt.key_len); -} - - -static int ieee80211_ioctl_get_encryption(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int ret = 0; - struct sta_info *sta; - struct ieee80211_key **key; - int max_key_len; - struct ieee80211_sub_if_data *sdata; - u8 *pos; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - param->u.crypt.err = 0; - - max_key_len = param_len - - (int) ((char *) param->u.crypt.key - (char *) param); - if (max_key_len < 0) - return -EINVAL; - - if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && - param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && - param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { - sta = NULL; - if (param->u.crypt.idx >= NUM_DEFAULT_KEYS) { - param->u.crypt.idx = sdata->default_key ? - sdata->default_key->keyidx : 0; - return 0; - } else - key = &sdata->keys[param->u.crypt.idx]; - } else { - sta = sta_info_get(local, param->sta_addr); - if (!sta) { - param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR; - return -EINVAL; - } - - key = &sta->key; - } - - memset(param->u.crypt.seq_counter, 0, HOSTAP_SEQ_COUNTER_SIZE); - if (!*key) { - memcpy(param->u.crypt.alg, "none", 5); - param->u.crypt.key_len = 0; - param->u.crypt.idx = 0xff; - } else { - switch ((*key)->alg) { - case ALG_WEP: - memcpy(param->u.crypt.alg, "WEP", 4); - break; - case ALG_TKIP: - { - u32 iv32; - u16 iv16; - - memcpy(param->u.crypt.alg, "TKIP", 5); - if (local->ops->get_sequence_counter) { - /* Get transmit counter from low level driver */ - if (local->ops->get_sequence_counter( - local_to_hw(local), - param->sta_addr, - (*key)->keyidx, - IEEE80211_SEQ_COUNTER_TX, - &iv32, - &iv16)) { - /* Error getting value from device */ - return -EIO; - } - } else { - /* Get it from our own local data */ - iv32 = (*key)->u.tkip.iv32; - iv16 = (*key)->u.tkip.iv16; - } - pos = param->u.crypt.seq_counter; - *pos++ = iv16 & 0xff; - *pos++ = (iv16 >> 8) & 0xff; - *pos++ = iv32 & 0xff; - *pos++ = (iv32 >> 8) & 0xff; - *pos++ = (iv32 >> 16) & 0xff; - *pos++ = (iv32 >> 24) & 0xff; - break; - } - case ALG_CCMP: - { - u8 *pn; - memcpy(param->u.crypt.alg, "CCMP", 5); - pos = param->u.crypt.seq_counter; - pn = (*key)->u.ccmp.tx_pn; - *pos++ = pn[5]; - *pos++ = pn[4]; - *pos++ = pn[3]; - *pos++ = pn[2]; - *pos++ = pn[1]; - *pos++ = pn[0]; - break; - } - default: - memcpy(param->u.crypt.alg, "unknown", 8); - break; - } - - if (max_key_len < (*key)->keylen) - ret = -E2BIG; - else { - param->u.crypt.key_len = (*key)->keylen; - memcpy(param->u.crypt.key, (*key)->key, - (*key)->keylen); - } - } - - if (sta) - sta_info_put(sta); - - return ret; -} - - -#ifdef CONFIG_HOSTAPD_WPA_TESTING -static int ieee80211_ioctl_wpa_trigger(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - - if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff && - param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff && - param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) { - local->wpa_trigger = param->u.wpa_trigger.trigger; - return 0; - } - - sta = sta_info_get(local, param->sta_addr); - if (!sta) { - printk(KERN_DEBUG "%s: wpa_trigger - unknown addr\n", - dev->name); - return -EINVAL; - } - - sta->wpa_trigger = param->u.wpa_trigger.trigger; - - sta_info_put(sta); - return 0; -} -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - -static int ieee80211_ioctl_set_rate_sets(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - u16 *pos = (u16 *) param->u.set_rate_sets.data; - int left = param_len - ((u8 *) pos - (u8 *) param); - int i, mode, num_supp, num_basic, *supp, *basic, *prev; - - mode = param->u.set_rate_sets.mode; - num_supp = param->u.set_rate_sets.num_supported_rates; - num_basic = param->u.set_rate_sets.num_basic_rates; - - if (left < (num_supp + num_basic) * 2) { - printk(KERN_WARNING "%s: invalid length in hostapd set rate " - "sets ioctl (%d != %d)\n", dev->name, left, - (num_supp + num_basic) * 2); - return -EINVAL; - } - - supp = (int *) kmalloc((num_supp + 1) * sizeof(int), GFP_KERNEL); - basic = (int *) kmalloc((num_basic + 1) * sizeof(int), GFP_KERNEL); - - if (!supp || !basic) { - kfree(supp); - kfree(basic); - return -ENOMEM; - } - - for (i = 0; i < num_supp; i++) - supp[i] = *pos++; - supp[i] = -1; - - for (i = 0; i < num_basic; i++) - basic[i] = *pos++; - basic[i] = -1; - - if (num_supp == 0) { - kfree(supp); - supp = NULL; - } - - if (num_basic == 0) { - kfree(basic); - basic = NULL; - } - - prev = local->supp_rates[mode]; - local->supp_rates[mode] = supp; - kfree(prev); - - prev = local->basic_rates[mode]; - local->basic_rates[mode] = basic; - kfree(prev); - - if (mode == local->hw.conf.phymode) { - /* TODO: should update STA TX rates and remove STAs if they - * do not have any remaining supported rates after the change - */ - ieee80211_prepare_rates(local); - } - - return 0; -} - - -static int ieee80211_ioctl_add_if(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - u8 *pos = param->u.if_info.data; - int left = param_len - ((u8 *) pos - (u8 *) param); - struct net_device *new_dev; - int res; - struct hostapd_if_wds *wds; - struct hostapd_if_bss *bss; - - printk(KERN_WARNING "PRISM2_HOSTAPD_ADD_IF ioctl is deprecated!"); - switch (param->u.if_info.type) { - case HOSTAP_IF_WDS: - wds = (struct hostapd_if_wds *) param->u.if_info.data; - - if (left < sizeof(struct hostapd_if_wds)) - return -EPROTO; - - res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev); - if (res) - return res; - ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_WDS); - res = ieee80211_if_update_wds(new_dev, wds->remote_addr); - if (res) - __ieee80211_if_del(dev->ieee80211_ptr, - IEEE80211_DEV_TO_SUB_IF(new_dev)); - return res; - case HOSTAP_IF_VLAN: - if (left < sizeof(struct hostapd_if_vlan)) - return -EPROTO; - - res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev); - if (res) - return res; - ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_VLAN); -#if 0 - res = ieee80211_if_update_vlan(new_dev, vlan->id); - if (res) - __ieee80211_if_del(dev->ieee80211_ptr, - IEEE80211_DEV_TO_SUB_IF(new_dev)); -#endif - return res; - case HOSTAP_IF_BSS: - bss = (struct hostapd_if_bss *) param->u.if_info.data; - - if (left < sizeof(struct hostapd_if_bss)) - return -EPROTO; - - res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev); - if (res) - return res; - ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_AP); - memcpy(new_dev->dev_addr, bss->bssid, ETH_ALEN); - return 0; - case HOSTAP_IF_STA: - if (left < sizeof(struct hostapd_if_sta)) - return -EPROTO; - - res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev); - if (res) - return res; - ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_STA); - return 0; - default: - return -EINVAL; - } - - return 0; -} - -static int ieee80211_ioctl_remove_if(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - unsigned int type; - - switch (param->u.if_info.type) { - case HOSTAP_IF_WDS: - type = IEEE80211_IF_TYPE_WDS; - break; - case HOSTAP_IF_VLAN: - type = IEEE80211_IF_TYPE_VLAN; - break; - case HOSTAP_IF_BSS: - type = IEEE80211_IF_TYPE_AP; - break; - case HOSTAP_IF_STA: - type = IEEE80211_IF_TYPE_STA; - break; - default: - return -EINVAL; - } - - return ieee80211_if_remove(dev, param->u.if_info.name, type); -} - -static int ieee80211_ioctl_update_if(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - u8 *pos = param->u.if_info.data; - int left = param_len - ((u8 *) pos - (u8 *) param); - - if (param->u.if_info.type == HOSTAP_IF_WDS) { - struct hostapd_if_wds *wds = - (struct hostapd_if_wds *) param->u.if_info.data; - struct ieee80211_local *local = dev->ieee80211_ptr; - struct net_device *wds_dev = NULL; - struct ieee80211_sub_if_data *sdata; - - if (left < sizeof(struct ieee80211_if_wds)) - return -EPROTO; - - list_for_each_entry(sdata, &local->sub_if_list, list) { - if (strcmp(param->u.if_info.name, - sdata->dev->name) == 0) { - wds_dev = sdata->dev; - break; - } - } - - if (!wds_dev || sdata->type != IEEE80211_IF_TYPE_WDS) - return -ENODEV; - - return ieee80211_if_update_wds(wds_dev, wds->remote_addr); - } else { - return -EOPNOTSUPP; - } -} - - -static int ieee80211_ioctl_flush_ifs(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - ieee80211_if_flush(dev); - return 0; -} - - -static int ieee80211_ioctl_scan_req(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - u8 *pos = param->u.scan_req.ssid; - int left = param_len - ((u8 *) pos - (u8 *) param); - int len = param->u.scan_req.ssid_len; - - if (local->user_space_mlme) - return -EOPNOTSUPP; - - if (!netif_running(dev)) - return -ENETDOWN; - - if (left < len || len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - - return ieee80211_sta_req_scan(dev, pos, len); -} - - -static int ieee80211_ioctl_sta_get_state(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - return -EINVAL; - param->u.sta_get_state.state = sdata->u.sta.state; - return 0; -} - - -static int ieee80211_ioctl_mlme(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - - if (local->user_space_mlme) - return -EOPNOTSUPP; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - return -EINVAL; - switch (param->u.mlme.cmd) { - case MLME_STA_DEAUTH: - return ieee80211_sta_deauthenticate(dev, param->u.mlme.reason_code); - case MLME_STA_DISASSOC: - return ieee80211_sta_disassociate(dev, param->u.mlme.reason_code); - } - return 0; -} - - -static int ieee80211_ioctl_get_load_stats(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - param->u.get_load_stats.channel_use = local->channel_use; -/* if (param->u.get_load_stats.flags & LOAD_STATS_CLEAR) - local->channel_use = 0; */ /* now it's not raw counter */ - - return 0; -} - - -static int ieee80211_ioctl_set_sta_vlan(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - - sta = sta_info_get(local, param->sta_addr); - if (sta) { - struct net_device *new_vlan_dev; - new_vlan_dev = - dev_get_by_name(param->u.set_sta_vlan.vlan_name); - if (new_vlan_dev) { -#if 0 - printk("%s: Station " MAC_FMT " moved to vlan: %s\n", - dev->name, MAC_ARG(param->sta_addr), - new_vlan_dev->name); -#endif - if (sta->dev != new_vlan_dev) { - ieee80211_send_layer2_update(new_vlan_dev, - sta->addr); - } - sta->dev = new_vlan_dev; - sta->vlan_id = param->u.set_sta_vlan.vlan_id; - dev_put(new_vlan_dev); - } - sta_info_put(sta); - } - - return sta ? 0 : -ENOENT; -} - - -static int ieee80211_set_gen_ie(struct net_device *dev, u8 *ie, size_t len) -{ - struct ieee80211_sub_if_data *sdata; - struct ieee80211_local *local = dev->ieee80211_ptr; - - if (local->user_space_mlme) - return -EOPNOTSUPP; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) - return ieee80211_sta_set_extra_ie(dev, ie, len); - - if (sdata->type == IEEE80211_IF_TYPE_AP) { - kfree(sdata->u.ap.generic_elem); - sdata->u.ap.generic_elem = kmalloc(len, GFP_KERNEL); - if (!sdata->u.ap.generic_elem) - return -ENOMEM; - memcpy(sdata->u.ap.generic_elem, ie, len); - sdata->u.ap.generic_elem_len = len; - return ieee80211_if_config(dev); - } - return -EOPNOTSUPP; -} - - -static int -ieee80211_ioctl_set_generic_info_elem(struct net_device *dev, - struct prism2_hostapd_param *param, - int param_len) -{ - u8 *pos = param->u.set_generic_info_elem.data; - int left = param_len - ((u8 *) pos - (u8 *) param); - int len = param->u.set_generic_info_elem.len; - - if (left < len) - return -EINVAL; - - return ieee80211_set_gen_ie(dev, pos, len); -} - - -static int ieee80211_ioctl_set_regulatory_domain(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_conf *conf = &local->hw.conf; - conf->regulatory_domain = param->u.set_regulatory_domain.rd; - return 0; -} - - -static int ieee80211_ioctl_set_radio_enabled(struct net_device *dev, - int val) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_conf *conf = &local->hw.conf; - - conf->radio_enabled = val; - return ieee80211_hw_config(dev->ieee80211_ptr); -} - -static int -ieee80211_ioctl_set_tx_queue_params(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_tx_queue_params qparam; - - if (!local->ops->conf_tx) { - printk(KERN_DEBUG "%s: low-level driver does not support TX " - "queue configuration\n", dev->name); - return -EOPNOTSUPP; - } - - memset(&qparam, 0, sizeof(qparam)); - qparam.aifs = param->u.tx_queue_params.aifs; - qparam.cw_min = param->u.tx_queue_params.cw_min; - qparam.cw_max = param->u.tx_queue_params.cw_max; - qparam.burst_time = param->u.tx_queue_params.burst_time; - - return local->ops->conf_tx(local_to_hw(local), - param->u.tx_queue_params.queue, - &qparam); -} - - -static int ieee80211_ioctl_get_tx_stats(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_tx_queue_stats stats; - int ret, i; - - if (!local->ops->get_tx_stats) - return -EOPNOTSUPP; - - memset(&stats, 0, sizeof(stats)); - ret = local->ops->get_tx_stats(local_to_hw(local), &stats); - if (ret) - return ret; - - for (i = 0; i < 4; i++) { - param->u.get_tx_stats.data[i].len = stats.data[i].len; - param->u.get_tx_stats.data[i].limit = stats.data[i].limit; - param->u.get_tx_stats.data[i].count = stats.data[i].count; - } - - return 0; -} - - -static int ieee80211_ioctl_set_channel_flag(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_hw_mode *mode; - struct ieee80211_channel *chan = NULL; - int i; - - list_for_each_entry(mode, &local->modes_list, list) { - if (mode->mode == param->u.set_channel_flag.mode) - goto found; - } - return -ENOENT; -found: - - for (i = 0; i < mode->num_channels; i++) { - chan = &mode->channels[i]; - if (chan->chan == param->u.set_channel_flag.chan) - break; - chan = NULL; - } - - if (!chan) - return -ENOENT; - - chan->flag = param->u.set_channel_flag.flag; - chan->power_level = param->u.set_channel_flag.power_level; - chan->antenna_max = param->u.set_channel_flag.antenna_max; - - return 0; -} - - -static int ieee80211_ioctl_set_quiet_params(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_conf *conf = &local->hw.conf; - - conf->quiet_duration = param->u.quiet.duration; - conf->quiet_offset = param->u.quiet.offset; - conf->quiet_period = param->u.quiet.period; - return 0; -} - - -static int ieee80211_ioctl_set_radar_params(struct net_device *dev, - struct prism2_hostapd_param *param) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_conf *conf = &local->hw.conf; - - conf->radar_firpwr_threshold = param->u.radar.radar_firpwr_threshold; - conf->radar_rssi_threshold = param->u.radar.radar_rssi_threshold; - conf->pulse_height_threshold = param->u.radar.pulse_height_threshold; - conf->pulse_rssi_threshold = param->u.radar.pulse_rssi_threshold; - conf->pulse_inband_threshold = param->u.radar.pulse_inband_threshold; - return 0; -} - - -static int ieee80211_ioctl_priv_hostapd(struct net_device *dev, - struct iw_point *p) -{ - struct prism2_hostapd_param *param; - int ret = 0; - - if (p->length < sizeof(struct prism2_hostapd_param) || - p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) { - printk(KERN_DEBUG "%s: hostapd ioctl: ptr=%p len=%d min=%d " - "max=%d\n", dev->name, p->pointer, p->length, - (int)sizeof(struct prism2_hostapd_param), - PRISM2_HOSTAPD_MAX_BUF_SIZE); - return -EINVAL; - } - - param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL); - if (!param) - return -ENOMEM; - - if (copy_from_user(param, p->pointer, p->length)) { - ret = -EFAULT; - goto out; - } - - switch (param->cmd) { - case PRISM2_HOSTAPD_FLUSH: - ret = ieee80211_ioctl_flush(dev, param); - break; - case PRISM2_HOSTAPD_ADD_STA: - ret = ieee80211_ioctl_add_sta(dev, param); - break; - case PRISM2_HOSTAPD_REMOVE_STA: - ret = ieee80211_ioctl_remove_sta(dev, param); - break; - case PRISM2_HOSTAPD_GET_INFO_STA: - ret = ieee80211_ioctl_get_info_sta(dev, param); - break; - case PRISM2_SET_ENCRYPTION: - ret = ieee80211_ioctl_set_encryption(dev, param, p->length); - break; - case PRISM2_GET_ENCRYPTION: - ret = ieee80211_ioctl_get_encryption(dev, param, p->length); - break; - case PRISM2_HOSTAPD_SET_FLAGS_STA: - ret = ieee80211_ioctl_set_flags_sta(dev, param); - break; - case PRISM2_HOSTAPD_SET_BEACON: - ret = ieee80211_ioctl_set_beacon(dev, param, p->length, 0); - break; - case PRISM2_HOSTAPD_GET_HW_FEATURES: - ret = ieee80211_ioctl_get_hw_features(dev, param, p->length); - break; - case PRISM2_HOSTAPD_SCAN: - ret = ieee80211_ioctl_scan(dev, param); - break; -#ifdef CONFIG_HOSTAPD_WPA_TESTING - case PRISM2_HOSTAPD_WPA_TRIGGER: - ret = ieee80211_ioctl_wpa_trigger(dev, param); - break; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - case PRISM2_HOSTAPD_SET_RATE_SETS: - ret = ieee80211_ioctl_set_rate_sets(dev, param, p->length); - break; - case PRISM2_HOSTAPD_ADD_IF: - ret = ieee80211_ioctl_add_if(dev, param, p->length); - break; - case PRISM2_HOSTAPD_REMOVE_IF: - ret = ieee80211_ioctl_remove_if(dev, param); - break; - case PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE: - ret = ieee80211_ioctl_get_dot11counterstable(dev, param); - break; - case PRISM2_HOSTAPD_GET_LOAD_STATS: - ret = ieee80211_ioctl_get_load_stats(dev, param); - break; - case PRISM2_HOSTAPD_SET_STA_VLAN: - ret = ieee80211_ioctl_set_sta_vlan(dev, param); - break; - case PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM: - ret = ieee80211_ioctl_set_generic_info_elem(dev, param, - p->length); - break; - case PRISM2_HOSTAPD_SET_CHANNEL_FLAG: - ret = ieee80211_ioctl_set_channel_flag(dev, param); - break; - case PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN: - ret = ieee80211_ioctl_set_regulatory_domain(dev, param); - break; - case PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS: - ret = ieee80211_ioctl_set_tx_queue_params(dev, param); - break; - case PRISM2_HOSTAPD_GET_TX_STATS: - ret = ieee80211_ioctl_get_tx_stats(dev, param); - break; - case PRISM2_HOSTAPD_UPDATE_IF: - ret = ieee80211_ioctl_update_if(dev, param, p->length); - break; - case PRISM2_HOSTAPD_SCAN_REQ: - ret = ieee80211_ioctl_scan_req(dev, param, p->length); - break; - case PRISM2_STA_GET_STATE: - ret = ieee80211_ioctl_sta_get_state(dev, param); - break; - case PRISM2_HOSTAPD_MLME: - ret = ieee80211_ioctl_mlme(dev, param); - break; - case PRISM2_HOSTAPD_FLUSH_IFS: - ret = ieee80211_ioctl_flush_ifs(dev, param); - break; - case PRISM2_HOSTAPD_SET_RADAR_PARAMS: - ret = ieee80211_ioctl_set_radar_params(dev, param); - break; - case PRISM2_HOSTAPD_SET_QUIET_PARAMS: - ret = ieee80211_ioctl_set_quiet_params(dev, param); - break; - default: - ret = -EOPNOTSUPP; - break; - } - - if (copy_to_user(p->pointer, param, p->length)) - ret = -EFAULT; - - out: - kfree(param); - - return ret; -} - - -static int ieee80211_ioctl_giwname(struct net_device *dev, - struct iw_request_info *info, - char *name, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - switch (local->hw.conf.phymode) { - case MODE_IEEE80211A: - strcpy(name, "IEEE 802.11a"); - break; - case MODE_IEEE80211B: - strcpy(name, "IEEE 802.11b"); - break; - case MODE_IEEE80211G: - strcpy(name, "IEEE 802.11g"); - break; - case MODE_ATHEROS_TURBO: - strcpy(name, "5GHz Turbo"); - break; - default: - strcpy(name, "IEEE 802.11"); - break; - } - - return 0; -} - - -static int ieee80211_ioctl_giwrange(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - struct iw_range *range = (struct iw_range *) extra; - - data->length = sizeof(struct iw_range); - memset(range, 0, sizeof(struct iw_range)); - - range->we_version_compiled = WIRELESS_EXT; - range->we_version_source = 14; - 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->max_qual.qual = 100; - range->max_qual.level = 146; /* set floor at -110 dBm (146 - 256) */ - range->max_qual.noise = 146; - range->max_qual.updated = IW_QUAL_ALL_UPDATED; - - range->avg_qual.qual = 50; - range->avg_qual.level = 0; - range->avg_qual.noise = 0; - range->avg_qual.updated = IW_QUAL_ALL_UPDATED; - - return 0; -} - - -struct ieee80211_channel_range { - short start_freq; - short end_freq; - unsigned char power_level; - unsigned char antenna_max; -}; - -static const struct ieee80211_channel_range ieee80211_fcc_channels[] = { - { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */, - { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */, - { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */, - { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */, - { 0 } -}; - -static const struct ieee80211_channel_range ieee80211_mkk_channels[] = { - { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */, - { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */, - { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */, - { 0 } -}; - - -static const struct ieee80211_channel_range *channel_range = - ieee80211_fcc_channels; - - -static void ieee80211_unmask_channel(struct net_device *dev, int mode, - struct ieee80211_channel *chan) -{ - int i; - - chan->flag = 0; - - if (ieee80211_regdom == 64 && - (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) { - /* Do not allow Turbo modes in Japan. */ - return; - } - - for (i = 0; channel_range[i].start_freq; i++) { - const struct ieee80211_channel_range *r = &channel_range[i]; - if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) { - if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz && - chan->freq >= 5260 && chan->freq <= 5320) { - /* - * Skip new channels in Japan since the - * firmware was not marked having been upgraded - * by the vendor. - */ - continue; - } - - if (ieee80211_regdom == 0x10 && - (chan->freq == 5190 || chan->freq == 5210 || - chan->freq == 5230)) { - /* Skip MKK channels when in FCC domain. */ - continue; - } - - chan->flag |= IEEE80211_CHAN_W_SCAN | - IEEE80211_CHAN_W_ACTIVE_SCAN | - IEEE80211_CHAN_W_IBSS; - chan->power_level = r->power_level; - chan->antenna_max = r->antenna_max; - - if (ieee80211_regdom == 64 && - (chan->freq == 5170 || chan->freq == 5190 || - chan->freq == 5210 || chan->freq == 5230)) { - /* - * New regulatory rules in Japan have backwards - * compatibility with old channels in 5.15-5.25 - * GHz band, but the station is not allowed to - * use active scan on these old channels. - */ - chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN; - } - - if (ieee80211_regdom == 64 && - (chan->freq == 5260 || chan->freq == 5280 || - chan->freq == 5300 || chan->freq == 5320)) { - /* - * IBSS is not allowed on 5.25-5.35 GHz band - * due to radar detection requirements. - */ - chan->flag &= ~IEEE80211_CHAN_W_IBSS; - } - - break; - } - } -} - - -static int ieee80211_unmask_channels(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_hw_mode *mode; - int c; - - list_for_each_entry(mode, &local->modes_list, list) { - for (c = 0; c < mode->num_channels; c++) { - ieee80211_unmask_channel(dev, mode->mode, - &mode->channels[c]); - } - } - return 0; -} - - -int ieee80211_init_client(struct net_device *dev) -{ - if (ieee80211_regdom == 0x40) - channel_range = ieee80211_mkk_channels; - ieee80211_unmask_channels(dev); - 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->type == IEEE80211_IF_TYPE_VLAN) - return -EOPNOTSUPP; - if (netif_running(dev)) - return -EBUSY; - - switch (*mode) { - case IW_MODE_MASTER: - type = IEEE80211_IF_TYPE_AP; - break; - 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; - case IW_MODE_REPEAT: - type = IEEE80211_IF_TYPE_WDS; - break; - default: - return -EINVAL; - } - - if (type != sdata->type) { - 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->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_ioctl_siwfreq(struct net_device *dev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_hw_mode *mode; - int c, nfreq, set = 0; - - /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */ - if (freq->e == 0) - nfreq = -1; - else { - int i, div = 1000000; - for (i = 0; i < freq->e; i++) - div /= 10; - if (div > 0) - nfreq = freq->m / div; - else - return -EINVAL; - } - - list_for_each_entry(mode, &local->modes_list, list) { - for (c = 0; c < mode->num_channels; c++) { - struct ieee80211_channel *chan = &mode->channels[c]; - if (chan->flag & IEEE80211_CHAN_W_SCAN && - ((freq->e == 0 && chan->chan == freq->m) || - (freq->e > 0 && nfreq == chan->freq)) && - (local->enabled_modes & (1 << mode->mode))) { - /* Use next_mode as the mode preference to - * resolve non-unique channel numbers. */ - if (set && mode->mode != local->next_mode) - continue; - - local->hw.conf.channel = chan->chan; - local->hw.conf.channel_val = chan->val; - local->hw.conf.power_level = chan->power_level; - local->hw.conf.freq = chan->freq; - local->hw.conf.phymode = mode->mode; - local->hw.conf.antenna_max = chan->antenna_max; - set++; - } - } - } - - if (set) { - local->sta_scanning = 0; /* Abort possible scan */ - return ieee80211_hw_config(local); - } - - 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 = dev->ieee80211_ptr; - - /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level - * driver for the current channel with firmware-based management */ - - freq->m = local->hw.conf.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_local *local = dev->ieee80211_ptr; - 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->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { - if (local->user_space_mlme) { - if (len > IEEE80211_MAX_SSID_LEN) - return -EINVAL; - memcpy(sdata->u.sta.ssid, ssid, len); - sdata->u.sta.ssid_len = len; - return 0; - } - return ieee80211_sta_set_ssid(dev, ssid, len); - } - - if (sdata->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->type == IEEE80211_IF_TYPE_STA || - sdata->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->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_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { - if (local->user_space_mlme) { - memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data, - ETH_ALEN); - return 0; - } - return ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data); - } else if (sdata->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->type == IEEE80211_IF_TYPE_STA || - sdata->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->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, - struct iw_point *data, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u8 *ssid = NULL; - size_t ssid_len = 0; - - if (!netif_running(dev)) - return -ENETDOWN; - - if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) { - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { - ssid = sdata->u.sta.ssid; - ssid_len = sdata->u.sta.ssid_len; - } else if (sdata->type == IEEE80211_IF_TYPE_AP) { - ssid = sdata->u.ap.ssid; - ssid_len = sdata->u.ap.ssid_len; - } else - return -EINVAL; - } - 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 = dev->ieee80211_ptr; - if (local->sta_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_siwrts(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *rts, char *extra) -{ - struct ieee80211_local *local = 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 = 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 = 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 = 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 = 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 = dev->ieee80211_ptr; - - retry->disabled = 0; - if ((retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT) - return -EINVAL; - if (retry->flags & IW_RETRY_MAX) { - retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX; - retry->value = local->long_retry_limit; - } else { - 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; -} - - -static void ieee80211_ioctl_unmask_channels(struct ieee80211_local *local) -{ - struct ieee80211_hw_mode *mode; - int c; - - list_for_each_entry(mode, &local->modes_list, list) { - for (c = 0; c < mode->num_channels; c++) { - struct ieee80211_channel *chan = &mode->channels[c]; - chan->flag |= IEEE80211_CHAN_W_SCAN; - } - } -} - - -static int ieee80211_ioctl_test_mode(struct net_device *dev, int mode) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int ret = -EOPNOTSUPP; - - if (mode == IEEE80211_TEST_UNMASK_CHANNELS) { - ieee80211_ioctl_unmask_channels(local); - ret = 0; - } - - if (local->ops->test_mode) - ret = local->ops->test_mode(local_to_hw(local), mode); - - return ret; -} - - -static int ieee80211_ioctl_clear_keys(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_key_conf key; - int i; - u8 addr[ETH_ALEN]; - struct ieee80211_key_conf *keyconf; - struct ieee80211_sub_if_data *sdata; - struct sta_info *sta; - - memset(addr, 0xff, ETH_ALEN); - list_for_each_entry(sdata, &local->sub_if_list, list) { - for (i = 0; i < NUM_DEFAULT_KEYS; i++) { - keyconf = NULL; - if (sdata->keys[i] && - !sdata->keys[i]->force_sw_encrypt && - local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, - sdata->keys[i]))) - local->ops->set_key(local_to_hw(local), - DISABLE_KEY, addr, - keyconf, 0); - kfree(keyconf); - ieee80211_key_free(sdata->keys[i]); - sdata->keys[i] = NULL; - } - sdata->default_key = NULL; - } - - spin_lock_bh(&local->sta_lock); - list_for_each_entry(sta, &local->sta_list, list) { - keyconf = NULL; - if (sta->key && !sta->key->force_sw_encrypt && - local->ops->set_key && - (keyconf = ieee80211_key_data2conf(local, sta->key))) - local->ops->set_key(local_to_hw(local), DISABLE_KEY, - sta->addr, keyconf, sta->aid); - kfree(keyconf); - ieee80211_key_free(sta->key); - sta->key = NULL; - } - spin_unlock_bh(&local->sta_lock); - - memset(&key, 0, sizeof(key)); - if (local->ops->set_key && - local->ops->set_key(local_to_hw(local), REMOVE_ALL_KEYS, - NULL, &key, 0)) - printk(KERN_DEBUG "%s: failed to remove hwaccel keys\n", - dev->name); - - return 0; -} - - -static int -ieee80211_ioctl_force_unicast_rate(struct net_device *dev, - struct ieee80211_sub_if_data *sdata, - int rate) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int i; - - if (sdata->type != IEEE80211_IF_TYPE_AP) - return -ENOENT; - - if (rate == 0) { - sdata->u.ap.force_unicast_rateidx = -1; - return 0; - } - - for (i = 0; i < local->num_curr_rates; i++) { - if (local->curr_rates[i].rate == rate) { - sdata->u.ap.force_unicast_rateidx = i; - return 0; - } - } - return -EINVAL; -} - - -static int -ieee80211_ioctl_max_ratectrl_rate(struct net_device *dev, - struct ieee80211_sub_if_data *sdata, - int rate) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int i; - - if (sdata->type != IEEE80211_IF_TYPE_AP) - return -ENOENT; - - if (rate == 0) { - sdata->u.ap.max_ratectrl_rateidx = -1; - return 0; - } - - for (i = 0; i < local->num_curr_rates; i++) { - if (local->curr_rates[i].rate == rate) { - sdata->u.ap.max_ratectrl_rateidx = i; - return 0; - } - } - return -EINVAL; -} - - -static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local, - struct ieee80211_key *key) -{ - struct ieee80211_key_conf *keyconf; - u8 addr[ETH_ALEN]; - - if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt || - (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)) - return; - - memset(addr, 0xff, ETH_ALEN); - keyconf = ieee80211_key_data2conf(local, key); - if (keyconf && local->ops->set_key && - local->ops->set_key(local_to_hw(local), - SET_KEY, addr, keyconf, 0) == 0) { - key->force_sw_encrypt = - !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT); - key->hw_key_idx = keyconf->hw_key_idx; - } - kfree(keyconf); -} - - -static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local, - struct ieee80211_key *key) -{ - struct ieee80211_key_conf *keyconf; - u8 addr[ETH_ALEN]; - - if (!key || key->alg != ALG_WEP || key->force_sw_encrypt || - (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)) - return; - - memset(addr, 0xff, ETH_ALEN); - keyconf = ieee80211_key_data2conf(local, key); - if (keyconf && local->ops->set_key) - local->ops->set_key(local_to_hw(local), DISABLE_KEY, - addr, keyconf, 0); - kfree(keyconf); - key->force_sw_encrypt = 1; -} - - -static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local, - int value) -{ - int i; - struct ieee80211_sub_if_data *sdata; - - local->default_wep_only = value; - list_for_each_entry(sdata, &local->sub_if_list, list) - for (i = 0; i < NUM_DEFAULT_KEYS; i++) - if (value) - ieee80211_key_enable_hwaccel(local, - sdata->keys[i]); - else - ieee80211_key_disable_hwaccel(local, - sdata->keys[i]); - - return 0; -} - - -void ieee80211_update_default_wep_only(struct ieee80211_local *local) -{ - int i = 0; - struct ieee80211_sub_if_data *sdata; - - spin_lock_bh(&local->sub_if_lock); - list_for_each_entry(sdata, &local->sub_if_list, list) { - - if (sdata->dev == local->mdev) - continue; - - /* If there is an AP interface then depend on userspace to - set default_wep_only correctly. */ - if (sdata->type == IEEE80211_IF_TYPE_AP) { - spin_unlock_bh(&local->sub_if_lock); - return; - } - - i++; - } - - if (i <= 1) - ieee80211_ioctl_default_wep_only(local, 1); - else - ieee80211_ioctl_default_wep_only(local, 0); - - spin_unlock_bh(&local->sub_if_lock); -} - - -static int ieee80211_ioctl_prism2_param(struct net_device *dev, - struct iw_request_info *info, - void *wrqu, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - int *i = (int *) extra; - int param = *i; - int value = *(i + 1); - int ret = 0; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (param) { - case PRISM2_PARAM_HOST_ENCRYPT: - case PRISM2_PARAM_HOST_DECRYPT: - /* TODO: implement these; return success now to prevent - * hostapd from aborting */ - break; - - case PRISM2_PARAM_BEACON_INT: - local->hw.conf.beacon_int = value; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - - case PRISM2_PARAM_AP_BRIDGE_PACKETS: - local->bridge_packets = value; - break; - - case PRISM2_PARAM_AP_AUTH_ALGS: - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { - sdata->u.sta.auth_algs = value; - } else - ret = -EOPNOTSUPP; - break; - - case PRISM2_PARAM_DTIM_PERIOD: - if (value < 1) - ret = -EINVAL; - else if (sdata->type != IEEE80211_IF_TYPE_AP) - ret = -ENOENT; - else - sdata->u.ap.dtim_period = value; - break; - - case PRISM2_PARAM_IEEE_802_1X: - sdata->ieee802_1x = value; - if (local->ops->set_ieee8021x && - local->ops->set_ieee8021x(local_to_hw(local), value)) - printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) " - "for low-level driver\n", dev->name, value); - break; - - case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: - local->cts_protect_erp_frames = value; - break; - - case PRISM2_PARAM_DROP_UNENCRYPTED: - sdata->drop_unencrypted = value; - break; - - case PRISM2_PARAM_PREAMBLE: - local->short_preamble = value; - break; - - case PRISM2_PARAM_STAT_TIME: - if (!local->stat_time && value) { - local->stat_timer.expires = jiffies + HZ * value / 100; - add_timer(&local->stat_timer); - } else if (local->stat_time && !value) { - del_timer_sync(&local->stat_timer); - } - local->stat_time = value; - break; - case PRISM2_PARAM_SHORT_SLOT_TIME: - if (value) - local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME; - else - local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - - case PRISM2_PARAM_PRIVACY_INVOKED: - if (local->ops->set_privacy_invoked) - ret = local->ops->set_privacy_invoked( - local_to_hw(local), value); - break; - - case PRISM2_PARAM_TEST_MODE: - ret = ieee80211_ioctl_test_mode(dev, value); - break; - - case PRISM2_PARAM_NEXT_MODE: - local->next_mode = value; - break; - - case PRISM2_PARAM_CLEAR_KEYS: - ret = ieee80211_ioctl_clear_keys(dev); - break; - - case PRISM2_PARAM_RADIO_ENABLED: - ret = ieee80211_ioctl_set_radio_enabled(dev, value); - break; - - case PRISM2_PARAM_ANTENNA_SEL: - local->hw.conf.antenna_sel = value; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - - case PRISM2_PARAM_ANTENNA_MODE: - local->hw.conf.antenna_mode = value; - if (ieee80211_hw_config(local)) - ret = -EINVAL; - break; - - case PRISM2_PARAM_BROADCAST_SSID: - if ((value < 0) || (value > 1)) - ret = -EINVAL; - else if (value) - local->hw.conf.flags |= IEEE80211_CONF_SSID_HIDDEN; - else - local->hw.conf.flags &= ~IEEE80211_CONF_SSID_HIDDEN; - break; - - case PRISM2_PARAM_STA_ANTENNA_SEL: - local->sta_antenna_sel = value; - break; - - case PRISM2_PARAM_FORCE_UNICAST_RATE: - ret = ieee80211_ioctl_force_unicast_rate(dev, sdata, value); - break; - - case PRISM2_PARAM_MAX_RATECTRL_RATE: - ret = ieee80211_ioctl_max_ratectrl_rate(dev, sdata, value); - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_UP: - local->rate_ctrl_num_up = value; - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_DOWN: - local->rate_ctrl_num_down = value; - break; - - case PRISM2_PARAM_TX_POWER_REDUCTION: - if (value < 0) - ret = -EINVAL; - else - local->hw.conf.tx_power_reduction = value; - break; - - case PRISM2_PARAM_EAPOL: - sdata->eapol = value; - break; - - case PRISM2_PARAM_KEY_TX_RX_THRESHOLD: - local->key_tx_rx_threshold = value; - break; - - case PRISM2_PARAM_KEY_INDEX: - if (value < 0 || value >= NUM_DEFAULT_KEYS) - ret = -EINVAL; - else if (!sdata->keys[value]) - ret = -ENOENT; - else - sdata->default_key = sdata->keys[value]; - break; - - case PRISM2_PARAM_DEFAULT_WEP_ONLY: - ret = ieee80211_ioctl_default_wep_only(local, value); - break; - - case PRISM2_PARAM_WIFI_WME_NOACK_TEST: - local->wifi_wme_noack_test = value; - break; - - case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS: - local->allow_broadcast_always = value; - break; - - case PRISM2_PARAM_SCAN_FLAGS: - local->scan_flags = value; - break; - - case PRISM2_PARAM_MIXED_CELL: - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - sdata->u.sta.mixed_cell = !!value; - break; - - case PRISM2_PARAM_KEY_MGMT: - if (sdata->type != IEEE80211_IF_TYPE_STA) - ret = -EINVAL; - else - sdata->u.sta.key_mgmt = value; - break; - - case PRISM2_PARAM_HW_MODES: - local->enabled_modes = value; - break; - - case PRISM2_PARAM_CREATE_IBSS: - if (sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - sdata->u.sta.create_ibss = !!value; - break; - case PRISM2_PARAM_WMM_ENABLED: - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - sdata->u.sta.wmm_enabled = !!value; - break; - case PRISM2_PARAM_RADAR_DETECT: - local->hw.conf.radar_detect = value; - break; - case PRISM2_PARAM_SPECTRUM_MGMT: - local->hw.conf.spect_mgmt = value; - break; - case PRISM2_PARAM_MGMT_IF: - if (value == 1) { - if (!local->apdev) - ret = ieee80211_if_add_mgmt(local); - } else if (value == 0) { - if (local->apdev) - ieee80211_if_del_mgmt(local); - } else - ret = -EINVAL; - break; - case PRISM2_PARAM_USER_SPACE_MLME: - local->user_space_mlme = value; - break; - default: - ret = -EOPNOTSUPP; - break; - } - - return ret; -} - - -static int ieee80211_ioctl_get_prism2_param(struct net_device *dev, - struct iw_request_info *info, - void *wrqu, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - int *param = (int *) extra; - int ret = 0; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - switch (*param) { - case PRISM2_PARAM_BEACON_INT: - *param = local->hw.conf.beacon_int; - break; - - case PRISM2_PARAM_AP_BRIDGE_PACKETS: - *param = local->bridge_packets; - break; - - case PRISM2_PARAM_AP_AUTH_ALGS: - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) { - *param = sdata->u.sta.auth_algs; - } else - ret = -EOPNOTSUPP; - break; - - case PRISM2_PARAM_DTIM_PERIOD: - if (sdata->type != IEEE80211_IF_TYPE_AP) - ret = -ENOENT; - else - *param = sdata->u.ap.dtim_period; - break; - - case PRISM2_PARAM_IEEE_802_1X: - *param = sdata->ieee802_1x; - break; - - case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES: - *param = local->cts_protect_erp_frames; - break; - - case PRISM2_PARAM_DROP_UNENCRYPTED: - *param = sdata->drop_unencrypted; - break; - - case PRISM2_PARAM_PREAMBLE: - *param = local->short_preamble; - break; - - case PRISM2_PARAM_STAT_TIME: - *param = local->stat_time; - break; - case PRISM2_PARAM_SHORT_SLOT_TIME: - *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME); - break; - - case PRISM2_PARAM_NEXT_MODE: - *param = local->next_mode; - break; - - case PRISM2_PARAM_ANTENNA_SEL: - *param = local->hw.conf.antenna_sel; - break; - - case PRISM2_PARAM_ANTENNA_MODE: - *param = local->hw.conf.antenna_mode; - break; - - case PRISM2_PARAM_BROADCAST_SSID: - *param = !!(local->hw.conf.flags & IEEE80211_CONF_SSID_HIDDEN); - break; - - case PRISM2_PARAM_STA_ANTENNA_SEL: - *param = local->sta_antenna_sel; - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_UP: - *param = local->rate_ctrl_num_up; - break; - - case PRISM2_PARAM_RATE_CTRL_NUM_DOWN: - *param = local->rate_ctrl_num_down; - break; - - case PRISM2_PARAM_TX_POWER_REDUCTION: - *param = local->hw.conf.tx_power_reduction; - break; - - case PRISM2_PARAM_EAPOL: - *param = sdata->eapol; - break; - - case PRISM2_PARAM_KEY_TX_RX_THRESHOLD: - *param = local->key_tx_rx_threshold; - break; - - case PRISM2_PARAM_KEY_INDEX: - if (!sdata->default_key) - ret = -ENOENT; - else if (sdata->default_key == sdata->keys[0]) - *param = 0; - else if (sdata->default_key == sdata->keys[1]) - *param = 1; - else if (sdata->default_key == sdata->keys[2]) - *param = 2; - else if (sdata->default_key == sdata->keys[3]) - *param = 3; - else - ret = -ENOENT; - break; - - case PRISM2_PARAM_DEFAULT_WEP_ONLY: - *param = local->default_wep_only; - break; - - case PRISM2_PARAM_WIFI_WME_NOACK_TEST: - *param = local->wifi_wme_noack_test; - break; - - case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS: - *param = local->allow_broadcast_always; - break; - - case PRISM2_PARAM_SCAN_FLAGS: - *param = local->scan_flags; - break; - - case PRISM2_PARAM_HW_MODES: - *param = local->enabled_modes; - break; - - case PRISM2_PARAM_CREATE_IBSS: - if (sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - *param = !!sdata->u.sta.create_ibss; - break; - - case PRISM2_PARAM_MIXED_CELL: - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - *param = !!sdata->u.sta.mixed_cell; - break; - - case PRISM2_PARAM_KEY_MGMT: - if (sdata->type != IEEE80211_IF_TYPE_STA) - ret = -EINVAL; - else - *param = sdata->u.sta.key_mgmt; - break; - case PRISM2_PARAM_WMM_ENABLED: - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) - ret = -EINVAL; - else - *param = !!sdata->u.sta.wmm_enabled; - break; - case PRISM2_PARAM_MGMT_IF: - if (local->apdev) - *param = local->apdev->ifindex; - else - ret = -ENOENT; - break; - case PRISM2_PARAM_USER_SPACE_MLME: - *param = local->user_space_mlme; - break; - - default: - ret = -EOPNOTSUPP; - break; - } - - return ret; -} - - -static int ieee80211_ioctl_test_param(struct net_device *dev, - struct iw_request_info *info, - void *wrqu, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int *i = (int *) extra; - int param = *i; - int value = *(i + 1); - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - - if (local->ops->test_param) - return local->ops->test_param(local_to_hw(local), - param, value); - - return -EOPNOTSUPP; -} - - -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->type != IEEE80211_IF_TYPE_STA && - sdata->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 }; - - 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--; - - if (erq->flags & IW_ENCODE_DISABLED) - alg = ALG_NONE; - else if (erq->length == 0) { - /* No key data - just set the default TX key index */ - if (sdata->default_key != sdata->keys[idx]) { - if (sdata->default_key) - ieee80211_key_sysfs_remove_default(sdata); - sdata->default_key = sdata->keys[idx]; - if (sdata->default_key) - ieee80211_key_sysfs_add_default(sdata); - } - return 0; - } - - return ieee80211_set_encryption( - dev, bcaddr, - idx, alg, - !sdata->default_key, - NULL, 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]->key, - min((int)erq->length, sdata->keys[idx]->keylen)); - erq->length = sdata->keys[idx]->keylen; - erq->flags |= IW_ENCODE_ENABLED; - - return 0; -} - - -static int ieee80211_ioctl_siwgenie(struct net_device *dev, - struct iw_request_info *info, - struct iw_point *data, char *extra) -{ - return ieee80211_set_gen_ie(dev, extra, data->length); -} - - -static int ieee80211_ioctl_siwauth(struct net_device *dev, - struct iw_request_info *info, - struct iw_param *data, char *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - 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: - break; - case IW_AUTH_KEY_MGMT: - if (sdata->type != IEEE80211_IF_TYPE_STA) - ret = -EINVAL; - else { - /* - * TODO: sdata->u.sta.key_mgmt does not match with WE18 - * value completely; could consider modifying this to - * be closer to WE18. For now, this value is not really - * used for anything else than Privacy matching, so the - * current code here should be more or less OK. - */ - if (data->value & IW_AUTH_KEY_MGMT_802_1X) { - sdata->u.sta.key_mgmt = - IEEE80211_KEY_MGMT_WPA_EAP; - } else if (data->value & IW_AUTH_KEY_MGMT_PSK) { - sdata->u.sta.key_mgmt = - IEEE80211_KEY_MGMT_WPA_PSK; - } else { - sdata->u.sta.key_mgmt = - IEEE80211_KEY_MGMT_NONE; - } - } - break; - case IW_AUTH_80211_AUTH_ALG: - if (sdata->type == IEEE80211_IF_TYPE_STA || - sdata->type == IEEE80211_IF_TYPE_IBSS) - sdata->u.sta.auth_algs = data->value; - else - ret = -EOPNOTSUPP; - break; - case IW_AUTH_PRIVACY_INVOKED: - if (local->ops->set_privacy_invoked) - ret = local->ops->set_privacy_invoked( - local_to_hw(local), data->value); - 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 *net_dev) -{ - struct ieee80211_local *local = net_dev->ieee80211_ptr; - struct iw_statistics * wstats = &local->wstats; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(net_dev); - struct sta_info *sta; - static int tmp_level = 0; - static int tmp_qual = 0; - - 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 { - if (!tmp_level) { /* get initial values */ - tmp_level = sta->last_signal; - tmp_qual = sta->last_rssi; - } else { /* smooth results */ - tmp_level = (15 * tmp_level + sta->last_signal)/16; - tmp_qual = (15 * tmp_qual + sta->last_rssi)/16; - } - wstats->qual.level = tmp_level; - wstats->qual.qual = 100*tmp_qual/local->hw.maxssi; - wstats->qual.noise = sta->last_noise; - wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM; - 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->type == IEEE80211_IF_TYPE_STA || - sdata->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 alg, idx, i; - - switch (ext->alg) { - case IW_ENCODE_ALG_NONE: - alg = ALG_NONE; - 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) - alg = ALG_NONE; - - 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, - ext->ext_flags & - IW_ENCODE_EXT_SET_TX_KEY, - NULL, ext->key, ext->key_len); -} - - -static const struct iw_priv_args ieee80211_ioctl_priv[] = { - { PRISM2_IOCTL_PRISM2_PARAM, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" }, - { PRISM2_IOCTL_GET_PRISM2_PARAM, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" }, - { PRISM2_IOCTL_TEST_PARAM, - IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "test_param" }, -}; - - -int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -{ - struct iwreq *wrq = (struct iwreq *) rq; - int ret = 0; - - switch (cmd) { - /* Private ioctls (iwpriv) that have not yet been converted - * into new wireless extensions API */ - case PRISM2_IOCTL_TEST_PARAM: - ret = ieee80211_ioctl_test_param(dev, NULL, &wrq->u, - (char *) &wrq->u); - break; - case PRISM2_IOCTL_HOSTAPD: - if (!capable(CAP_NET_ADMIN)) ret = -EPERM; - else ret = ieee80211_ioctl_priv_hostapd(dev, &wrq->u.data); - break; - default: - ret = -EOPNOTSUPP; - break; - } - - return ret; -} - - -/* 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_set_spy, /* SIOCSIWSPY */ - iw_handler_get_spy, /* SIOCGIWSPY */ - iw_handler_set_thrspy, /* SIOCSIWTHRSPY */ - iw_handler_get_thrspy, /* 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) NULL, /* SIOCSIWRATE */ - (iw_handler) NULL, /* 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) NULL, /* SIOCSIWTXPOW */ - (iw_handler) NULL, /* 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 -- */ -}; - -static const iw_handler ieee80211_private_handler[] = -{ /* SIOCIWFIRSTPRIV + */ - (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */ - (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */ -}; - -const struct iw_handler_def ieee80211_iw_handler_def = -{ - .num_standard = sizeof(ieee80211_handler) / sizeof(iw_handler), - .num_private = sizeof(ieee80211_private_handler) / - sizeof(iw_handler), - .num_private_args = sizeof(ieee80211_ioctl_priv) / - sizeof(struct iw_priv_args), - .standard = (iw_handler *) ieee80211_handler, - .private = (iw_handler *) ieee80211_private_handler, - .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv, - .get_wireless_stats = ieee80211_get_wireless_stats, -}; - -/* Wireless handlers for master interface */ - -static const iw_handler ieee80211_master_handler[] = -{ - [SIOCGIWNAME - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwname, - [SIOCSIWFREQ - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwfreq, - [SIOCGIWFREQ - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwfreq, - [SIOCGIWRANGE - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwrange, - [SIOCSIWRTS - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwrts, - [SIOCGIWRTS - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwrts, - [SIOCSIWFRAG - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwfrag, - [SIOCGIWFRAG - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwfrag, - [SIOCSIWRETRY - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwretry, - [SIOCGIWRETRY - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwretry, -}; - -const struct iw_handler_def ieee80211_iw_master_handler_def = -{ - .num_standard = sizeof(ieee80211_master_handler) / sizeof(iw_handler), - .standard = ieee80211_master_handler, -}; diff --git a/package/d80211/src/ieee80211_key.h b/package/d80211/src/ieee80211_key.h deleted file mode 100644 index 5b5c564337..0000000000 --- a/package/d80211/src/ieee80211_key.h +++ /dev/null @@ -1,89 +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/kobject.h> -#include <linux/crypto.h> -#include <net/d80211.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_key { - struct kobject kobj; - - int hw_key_idx; /* filled and used by low-level driver */ - ieee80211_key_alg alg; - 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; - int tx_rx_count; /* number of times this key has been used */ - int keylen; - - /* if the low level driver can provide hardware acceleration it should - * clear this flag */ - unsigned int force_sw_encrypt:1; - int keyidx:8; /* WEP key index */ - unsigned int default_tx_key:1; /* This key is the new default TX key - * (used only for broadcast keys). */ - - u8 key[0]; -}; - -#endif /* IEEE80211_KEY_H */ diff --git a/package/d80211/src/ieee80211_led.c b/package/d80211/src/ieee80211_led.c deleted file mode 100644 index 34c5de4311..0000000000 --- a/package/d80211/src/ieee80211_led.c +++ /dev/null @@ -1,91 +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_init(struct ieee80211_local *local) -{ - local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL); - if (!local->rx_led) - return; - snprintf(local->rx_led_name, sizeof(local->rx_led_name), - "wiphy%drx", local->hw.index); - 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) - return; - snprintf(local->tx_led_name, sizeof(local->tx_led_name), - "wiphy%dtx", local->hw.index); - local->tx_led->name = local->tx_led_name; - if (led_trigger_register(local->tx_led)) { - kfree(local->tx_led); - local->tx_led = NULL; - } -} - -void ieee80211_led_exit(struct ieee80211_local *local) -{ - 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_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/d80211/src/ieee80211_led.h b/package/d80211/src/ieee80211_led.h deleted file mode 100644 index 2a539af45b..0000000000 --- a/package/d80211/src/ieee80211_led.h +++ /dev/null @@ -1,32 +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_D80211_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_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_init(struct ieee80211_local *local) -{ -} -static inline void ieee80211_led_exit(struct ieee80211_local *local) -{ -} -#endif diff --git a/package/d80211/src/ieee80211_rate.c b/package/d80211/src/ieee80211_rate.c deleted file mode 100644 index 16e850864b..0000000000 --- a/package/d80211/src/ieee80211_rate.c +++ /dev/null @@ -1,140 +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 "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); - -int ieee80211_rate_control_register(struct rate_control_ops *ops) -{ - struct rate_control_alg *alg; - - alg = kmalloc(sizeof(*alg), GFP_KERNEL); - if (alg == NULL) { - return -ENOMEM; - } - memset(alg, 0, sizeof(*alg)); - alg->ops = ops; - - mutex_lock(&rate_ctrl_mutex); - 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); - break; - } - } - mutex_unlock(&rate_ctrl_mutex); - kfree(alg); -} -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; - - mutex_lock(&rate_ctrl_mutex); - list_for_each_entry(alg, &rate_ctrl_algs, list) { - if (!name || !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. If `name' is NULL, get the first - * available algorithm. */ -static struct rate_control_ops * -ieee80211_rate_control_ops_get(const char *name) -{ - struct rate_control_ops *ops; - - ops = ieee80211_try_rate_control_ops_get(name); - if (!ops) { - request_module("rc80211_%s", name ? name : "default"); - ops = ieee80211_try_rate_control_ops_get(name); - } - 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); -} - -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); -} diff --git a/package/d80211/src/ieee80211_rate.h b/package/d80211/src/ieee80211_rate.h deleted file mode 100644 index 04c7465ca0..0000000000 --- a/package/d80211/src/ieee80211_rate.h +++ /dev/null @@ -1,161 +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/d80211.h> -#include "ieee80211_i.h" -#include "sta_info.h" - -#define RATE_CONTROL_NUM_DOWN 20 -#define RATE_CONTROL_NUM_UP 15 - - -struct rate_control_extra { - /* values from rate_control_get_rate() to the caller: */ - struct ieee80211_rate *probe; /* probe with this rate, or NULL for no - * probing */ - int startidx, endidx, rateidx; - struct ieee80211_rate *nonerp; - int nonerp_idx; - - /* parameters from the caller to rate_control_get_rate(): */ - int mgmt_data; /* this is data frame that is used for management - * (e.g., IEEE 802.1X EAPOL) */ - u16 ethertype; -}; - - -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); - struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev, - struct sk_buff *skb, - struct rate_control_extra *extra); - 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); - int (*add_sta_attrs)(void *priv, void *priv_sta, - struct kobject *kobj); - void (*remove_sta_attrs)(void *priv, void *priv_sta, - struct kobject *kobj); -}; - -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); -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 ieee80211_local *local, - struct net_device *dev, - struct sk_buff *skb, - struct ieee80211_tx_status *status) -{ - struct rate_control_ref *ref = local->rate_ctrl; - ref->ops->tx_status(ref->priv, dev, skb, status); -} - - -static inline struct ieee80211_rate * -rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev, - struct sk_buff *skb, struct rate_control_extra *extra) -{ - struct rate_control_ref *ref = local->rate_ctrl; - return ref->ops->get_rate(ref->priv, dev, skb, extra); -} - - -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 int rate_control_add_attrs(struct rate_control_ref *ref, - struct kobject *kobj) -{ - if (ref->ops->add_attrs) - return ref->ops->add_attrs(ref->priv, kobj); - return 0; -} - -static inline void rate_control_remove_attrs(struct rate_control_ref *ref, - struct kobject *kobj) -{ - if (ref->ops->remove_attrs) - ref->ops->remove_attrs(ref->priv, kobj); -} - -static inline int rate_control_add_sta_attrs(struct sta_info *sta, - struct kobject *kobj) -{ - struct rate_control_ref *ref = sta->rate_ctrl; - if (ref->ops->add_sta_attrs) - return ref->ops->add_sta_attrs(ref->priv, sta->rate_ctrl_priv, - kobj); - return 0; -} - -static inline void rate_control_remove_sta_attrs(struct sta_info *sta, - struct kobject *kobj) -{ - struct rate_control_ref *ref = sta->rate_ctrl; - if (ref->ops->remove_sta_attrs) - ref->ops->remove_sta_attrs(ref->priv, sta->rate_ctrl_priv, - kobj); -} - -#endif /* IEEE80211_RATE_H */ diff --git a/package/d80211/src/ieee80211_scan.c b/package/d80211/src/ieee80211_scan.c deleted file mode 100644 index fe28f578b2..0000000000 --- a/package/d80211/src/ieee80211_scan.c +++ /dev/null @@ -1,342 +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/module.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> - -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" - - -/* Maximum number of seconds to wait for the traffic load to get below - * threshold before forcing a passive scan. */ -#define MAX_SCAN_WAIT 60 -/* Threshold (pkts/sec TX or RX) for delaying passive scan */ -#define SCAN_TXRX_THRESHOLD 75 - -static void get_channel_params(struct ieee80211_local *local, int channel, - struct ieee80211_hw_mode **mode, - struct ieee80211_channel **chan) -{ - struct ieee80211_hw_mode *m; - - list_for_each_entry(m, &local->modes_list, list) { - *mode = m; - if (m->mode == local->hw.conf.phymode) - break; - } - local->scan.mode = m; - local->scan.chan_idx = 0; - do { - *chan = &m->channels[local->scan.chan_idx]; - if ((*chan)->chan == channel) - return; - local->scan.chan_idx++; - } while (local->scan.chan_idx < m->num_channels); - *chan = NULL; -} - - -static void next_chan_same_mode(struct ieee80211_local *local, - struct ieee80211_hw_mode **mode, - struct ieee80211_channel **chan) -{ - struct ieee80211_hw_mode *m; - int prev; - - list_for_each_entry(m, &local->modes_list, list) { - *mode = m; - if (m->mode == local->hw.conf.phymode) - break; - } - local->scan.mode = m; - - /* Select next channel - scan only channels marked with W_SCAN flag */ - prev = local->scan.chan_idx; - do { - local->scan.chan_idx++; - if (local->scan.chan_idx >= m->num_channels) - local->scan.chan_idx = 0; - *chan = &m->channels[local->scan.chan_idx]; - if ((*chan)->flag & IEEE80211_CHAN_W_SCAN) - break; - } while (local->scan.chan_idx != prev); -} - - -static void next_chan_all_modes(struct ieee80211_local *local, - struct ieee80211_hw_mode **mode, - struct ieee80211_channel **chan) -{ - struct ieee80211_hw_mode *prev_m; - int prev; - - /* Select next channel - scan only channels marked with W_SCAN flag */ - prev = local->scan.chan_idx; - prev_m = local->scan.mode; - do { - *mode = local->scan.mode; - local->scan.chan_idx++; - if (local->scan.chan_idx >= (*mode)->num_channels) { - struct list_head *next; - - local->scan.chan_idx = 0; - next = (*mode)->list.next; - if (next == &local->modes_list) - next = next->next; - *mode = list_entry(next, - struct ieee80211_hw_mode, - list); - local->scan.mode = *mode; - } - *chan = &(*mode)->channels[local->scan.chan_idx]; - if ((*chan)->flag & IEEE80211_CHAN_W_SCAN) - break; - } while (local->scan.chan_idx != prev || - local->scan.mode != prev_m); -} - - -static void ieee80211_scan_start(struct ieee80211_local *local, - struct ieee80211_scan_conf *conf) -{ - struct ieee80211_hw_mode *old_mode = local->scan.mode; - int old_chan_idx = local->scan.chan_idx; - struct ieee80211_hw_mode *mode = NULL; - struct ieee80211_channel *chan = NULL; - int ret; - - if (!local->ops->passive_scan) { - printk(KERN_DEBUG "%s: Scan handler called, yet the hardware " - "does not support passive scanning. Disabled.\n", - local->mdev->name); - return; - } - - if ((local->scan.tries < MAX_SCAN_WAIT && - local->scan.txrx_count > SCAN_TXRX_THRESHOLD)) { - local->scan.tries++; - /* Count TX/RX packets during one second interval and allow - * scan to start only if the number of packets is below the - * threshold. */ - local->scan.txrx_count = 0; - local->scan.timer.expires = jiffies + HZ; - add_timer(&local->scan.timer); - return; - } - - if (!local->scan.skb) { - printk(KERN_DEBUG "%s: Scan start called even though scan.skb " - "is not set\n", local->mdev->name); - } - - if (local->scan.our_mode_only) { - if (local->scan.channel > 0) { - get_channel_params(local, local->scan.channel, &mode, - &chan); - } else - next_chan_same_mode(local, &mode, &chan); - } - else - next_chan_all_modes(local, &mode, &chan); - - conf->scan_channel = chan->chan; - conf->scan_freq = chan->freq; - conf->scan_channel_val = chan->val; - conf->scan_phymode = mode->mode; - conf->scan_power_level = chan->power_level; - conf->scan_antenna_max = chan->antenna_max; - conf->scan_time = 2 * local->hw.channel_change_time + - local->scan.time; /* 10ms scan time+hardware changes */ - conf->skb = local->scan.skb ? - skb_clone(local->scan.skb, GFP_ATOMIC) : NULL; - conf->tx_control = &local->scan.tx_control; -#if 0 - printk(KERN_DEBUG "%s: Doing scan on mode: %d freq: %d chan: %d " - "for %d ms\n", - local->mdev->name, conf->scan_phymode, conf->scan_freq, - conf->scan_channel, conf->scan_time); -#endif - local->scan.rx_packets = 0; - local->scan.rx_beacon = 0; - local->scan.freq = chan->freq; - local->scan.in_scan = 1; - - ieee80211_netif_oper(local_to_hw(local), NETIF_STOP); - - ret = local->ops->passive_scan(local_to_hw(local), - IEEE80211_SCAN_START, conf); - - if (ret == 0) { - long usec = local->hw.channel_change_time + - local->scan.time; - usec += 1000000L / HZ - 1; - usec /= 1000000L / HZ; - local->scan.timer.expires = jiffies + usec; - } else { - local->scan.in_scan = 0; - if (conf->skb) - dev_kfree_skb(conf->skb); - ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE); - if (ret == -EAGAIN) { - local->scan.timer.expires = jiffies + - (local->scan.interval * HZ / 100); - local->scan.mode = old_mode; - local->scan.chan_idx = old_chan_idx; - } else { - printk(KERN_DEBUG "%s: Got unknown error from " - "passive_scan %d\n", local->mdev->name, ret); - local->scan.timer.expires = jiffies + - (local->scan.interval * HZ); - } - local->scan.in_scan = 0; - } - - add_timer(&local->scan.timer); -} - - -static void ieee80211_scan_stop(struct ieee80211_local *local, - struct ieee80211_scan_conf *conf) -{ - struct ieee80211_hw_mode *mode; - struct ieee80211_channel *chan; - int wait; - - if (!local->ops->passive_scan) - return; - - mode = local->scan.mode; - - if (local->scan.chan_idx >= mode->num_channels) - local->scan.chan_idx = 0; - - chan = &mode->channels[local->scan.chan_idx]; - - local->ops->passive_scan(local_to_hw(local), IEEE80211_SCAN_END, - conf); - -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Did scan on mode: %d freq: %d chan: %d " - "GOT: %d Beacon: %d (%d)\n", - local->mdev->name, - mode->mode, chan->freq, chan->chan, - local->scan.rx_packets, local->scan.rx_beacon, - local->scan.tries); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - local->scan.num_scans++; - - local->scan.in_scan = 0; - ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE); - - local->scan.tries = 0; - /* Use random interval of scan.interval .. 2 * scan.interval */ - wait = (local->scan.interval * HZ * ((net_random() & 127) + 128)) / - 128; - local->scan.timer.expires = jiffies + wait; - - add_timer(&local->scan.timer); -} - - -static void ieee80211_scan_handler(unsigned long ullocal) -{ - struct ieee80211_local *local = (struct ieee80211_local *) ullocal; - struct ieee80211_scan_conf conf; - - if (local->scan.interval == 0 && !local->scan.in_scan) { - /* Passive scanning is disabled - keep the timer always - * running to make code cleaner. */ - local->scan.timer.expires = jiffies + 10 * HZ; - add_timer(&local->scan.timer); - return; - } - - memset(&conf, 0, sizeof(struct ieee80211_scan_conf)); - conf.running_freq = local->hw.conf.freq; - conf.running_channel = local->hw.conf.channel; - conf.running_phymode = local->hw.conf.phymode; - conf.running_channel_val = local->hw.conf.channel_val; - conf.running_power_level = local->hw.conf.power_level; - conf.running_antenna_max = local->hw.conf.antenna_max; - - if (local->scan.in_scan == 0) - ieee80211_scan_start(local, &conf); - else - ieee80211_scan_stop(local, &conf); -} - - -void ieee80211_init_scan(struct ieee80211_local *local) -{ - struct ieee80211_hdr hdr; - u16 fc; - int len = 10; - struct rate_control_extra extra; - - /* Only initialize passive scanning if the hardware supports it */ - if (!local->ops->passive_scan) { - local->scan.skb = NULL; - memset(&local->scan.tx_control, 0, - sizeof(local->scan.tx_control)); - printk(KERN_DEBUG "%s: Does not support passive scan, " - "disabled\n", local->mdev->name); - return; - } - - local->scan.interval = 0; - local->scan.our_mode_only = 1; - local->scan.time = 10000; - local->scan.timer.function = ieee80211_scan_handler; - local->scan.timer.data = (unsigned long) local; - local->scan.timer.expires = jiffies + local->scan.interval * HZ; - add_timer(&local->scan.timer); - - /* Create a CTS from for broadcasting before - * the low level changes channels */ - local->scan.skb = alloc_skb(len, GFP_KERNEL); - if (!local->scan.skb) { - printk(KERN_WARNING "%s: Failed to allocate CTS packet for " - "passive scan\n", local->mdev->name); - return; - } - - fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS; - hdr.frame_control = cpu_to_le16(fc); - hdr.duration_id = - cpu_to_le16(2 * local->hw.channel_change_time + - local->scan.time); - memcpy(hdr.addr1, local->mdev->dev_addr, ETH_ALEN); /* DA */ - hdr.seq_ctrl = 0; - - memcpy(skb_put(local->scan.skb, len), &hdr, len); - - memset(&local->scan.tx_control, 0, sizeof(local->scan.tx_control)); - local->scan.tx_control.key_idx = HW_KEY_IDX_INVALID; - local->scan.tx_control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - memset(&extra, 0, sizeof(extra)); - extra.endidx = local->num_curr_rates; - local->scan.tx_control.tx_rate = - rate_control_get_rate(local, local->mdev, - local->scan.skb, &extra)->val; - local->scan.tx_control.flags |= IEEE80211_TXCTL_NO_ACK; -} - - -void ieee80211_stop_scan(struct ieee80211_local *local) -{ - if (local->ops->passive_scan) { - del_timer_sync(&local->scan.timer); - dev_kfree_skb(local->scan.skb); - local->scan.skb = NULL; - } -} diff --git a/package/d80211/src/ieee80211_sta.c b/package/d80211/src/ieee80211_sta.c deleted file mode 100644 index feba62b05d..0000000000 --- a/package/d80211/src/ieee80211_sta.c +++ /dev/null @@ -1,2896 +0,0 @@ -/* - * BSS client mode implementation - * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi> - * 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. - */ - -/* TODO: - * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs - * order BSS list by RSSI(?) ("quality of AP") - * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE, - * SSID) - */ -#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 <net/iw_handler.h> -#include <asm/types.h> -#include <asm/delay.h> - -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "hostapd_ioctl.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) - -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); -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); - - -/* Parsed Information Elements */ -struct ieee802_11_elems { - u8 *ssid; - u8 ssid_len; - u8 *supp_rates; - u8 supp_rates_len; - u8 *fh_params; - u8 fh_params_len; - u8 *ds_params; - u8 ds_params_len; - u8 *cf_params; - u8 cf_params_len; - u8 *tim; - u8 tim_len; - u8 *ibss_params; - u8 ibss_params_len; - u8 *challenge; - u8 challenge_len; - u8 *wpa; - u8 wpa_len; - u8 *rsn; - u8 rsn_len; - u8 *erp_info; - u8 erp_info_len; - u8 *ext_supp_rates; - u8 ext_supp_rates_len; - u8 *wmm_info; - u8 wmm_info_len; - u8 *wmm_param; - u8 wmm_param_len; -}; - -typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes; - - -static ParseRes ieee802_11_parse_elems(u8 *start, size_t len, - struct ieee802_11_elems *elems) -{ - size_t left = len; - u8 *pos = start; - int unknown = 0; - - memset(elems, 0, sizeof(*elems)); - - while (left >= 2) { - u8 id, elen; - - id = *pos++; - elen = *pos++; - left -= 2; - - if (elen > left) { -#if 0 - if (net_ratelimit()) - printk(KERN_DEBUG "IEEE 802.11 element parse " - "failed (id=%d elen=%d left=%d)\n", - id, elen, left); -#endif - return ParseFailed; - } - - 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; - default: -#if 0 - printk(KERN_DEBUG "IEEE 802.11 element parse ignored " - "unknown element (id=%d elen=%d)\n", - id, elen); -#endif - unknown++; - break; - } - - left -= elen; - pos += elen; - } - - /* Do not trigger error if left == 1 as Apple Airport base stations - * send AssocResps that are one spurious byte too long. */ - - return unknown ? ParseUnknown : ParseOK; -} - - - - -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 = 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(1) | BIT(2); - } - 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(0) | BIT(3); - } - 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 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_ATOMIC); - 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, int assoc) -{ - union iwreq_data wrqu; - - if (ifsta->associated == assoc) - return; - - ifsta->associated = assoc; - - if (assoc) { - struct ieee80211_sub_if_data *sdata; - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_STA) - return; - ifsta->prev_bssid_set = 1; - 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 { - 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; -} - -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->mac.raw = skb->nh.raw = skb->h.raw = skb->data; - - 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; - pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT); - pkt_data->do_not_encrypt = !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 sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(sizeof(*mgmt) + 6 + extra_len); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for auth " - "frame\n", dev->name); - return; - } - - 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) -{ - ifsta->auth_tries++; - if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) { - printk(KERN_DEBUG "%s: authentication with AP " MAC_FMT - " timed out\n", - dev->name, MAC_ARG(ifsta->bssid)); - return; - } - - ifsta->state = IEEE80211_AUTHENTICATE; - printk(KERN_DEBUG "%s: authenticate with AP " MAC_FMT "\n", - dev->name, MAC_ARG(ifsta->bssid)); - - ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0); - - schedule_delayed_work(&ifsta->work, IEEE80211_AUTH_TIMEOUT); -} - - -static void ieee80211_send_assoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = 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; - - skb = dev_alloc_skb(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; - } - - capab = ifsta->capab; - if (local->hw.conf.phymode == MODE_IEEE80211G) { - capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME | - WLAN_CAPABILITY_SHORT_PREAMBLE; - } - bss = ieee80211_rx_bss_get(dev, ifsta->bssid); - 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->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 = local->num_curr_rates; - 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 = local->curr_rates[i].rate; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate /= 2; - *pos++ = (u8) (rate / 5); - } - - if (local->num_curr_rates > len) { - pos = skb_put(skb, local->num_curr_rates - len + 2); - *pos++ = WLAN_EID_EXT_SUPP_RATES; - *pos++ = local->num_curr_rates - len; - for (i = len; i < local->num_curr_rates; i++) { - int rate = local->curr_rates[i].rate; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate /= 2; - *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->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; - } - - kfree(ifsta->assocreq_ies); - ifsta->assocreq_ies_len = (skb->data + skb->len) - ies; - ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_ATOMIC); - 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 sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for deauth " - "frame\n", dev->name); - return; - } - - 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 sk_buff *skb; - struct ieee80211_mgmt *mgmt; - - skb = dev_alloc_skb(sizeof(*mgmt)); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc " - "frame\n", dev->name); - return; - } - - 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_sta_bss *bss; - int res = 0; - - if (!ifsta || ifsta->mixed_cell || - ifsta->key_mgmt != IEEE80211_KEY_MGMT_NONE) - return 0; - - bss = ieee80211_rx_bss_get(dev, ifsta->bssid); - if (!bss) - return 0; - - if (ieee80211_sta_wep_configured(dev) != - !!(bss->capability & WLAN_CAPABILITY_PRIVACY)) - res = 1; - - ieee80211_rx_bss_put(dev, bss); - - return res; -} - - -static void ieee80211_associate(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - ifsta->assoc_tries++; - if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) { - printk(KERN_DEBUG "%s: association with AP " MAC_FMT - " timed out\n", - dev->name, MAC_ARG(ifsta->bssid)); - return; - } - - ifsta->state = IEEE80211_ASSOCIATE; - printk(KERN_DEBUG "%s: associate with AP " MAC_FMT "\n", - dev->name, MAC_ARG(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); - return; - } - - ieee80211_send_assoc(dev, ifsta); - - schedule_delayed_work(&ifsta->work, IEEE80211_ASSOC_TIMEOUT); -} - - -static void ieee80211_associated(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - int disassoc; - - /* 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 " MAC_FMT "\n", - dev->name, MAC_ARG(ifsta->bssid)); - disassoc = 1; - } else { - disassoc = 0; - if (time_after(jiffies, - sta->last_rx + IEEE80211_MONITORING_INTERVAL)) { - if (ifsta->probereq_poll) { - printk(KERN_DEBUG "%s: No ProbeResp from " - "current AP " MAC_FMT " - assume out of " - "range\n", - dev->name, MAC_ARG(ifsta->bssid)); - disassoc = 1; - sta_info_free(sta, 0); - ifsta->probereq_poll = 0; - } else { - ieee80211_send_probe_req(dev, ifsta->bssid, - local->scan_ssid, - local->scan_ssid_len); - ifsta->probereq_poll = 1; - } - } else { - ifsta->probereq_poll = 0; - 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) { - union iwreq_data wrqu; - memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); - wrqu.ap_addr.sa_family = ARPHRD_ETHER; - wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); - schedule_delayed_work(&ifsta->work, - IEEE80211_MONITORING_INTERVAL + 30 * HZ); - } else { - schedule_delayed_work(&ifsta->work, - 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 = dev->ieee80211_ptr; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - u8 *pos, *supp_rates, *esupp_rates = NULL; - int i; - - skb = dev_alloc_skb(sizeof(*mgmt) + 200); - if (!skb) { - printk(KERN_DEBUG "%s: failed to allocate buffer for probe " - "request\n", dev->name); - return; - } - - 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; - for (i = 0; i < local->num_curr_rates; i++) { - struct ieee80211_rate *rate = &local->curr_rates[i]; - if (!(rate->flags & IEEE80211_RATE_SUPPORTED)) - continue; - 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]++; - } - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - *pos = rate->rate / 10; - else - *pos = rate->rate / 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->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->authenticated = 1; - 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, - struct ieee80211_rx_status *rx_status) -{ - u8 *pos; - struct ieee802_11_elems elems; - - printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name); - pos = mgmt->u.auth.variable; - if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems) - == ParseFailed) { - printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n", - dev->name); - return; - } - 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_rx_mgmt_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u16 auth_alg, auth_transaction, status_code; - - if (ifsta->state != IEEE80211_AUTHENTICATE && - sdata->type != IEEE80211_IF_TYPE_IBSS) { - printk(KERN_DEBUG "%s: authentication frame received from " - MAC_FMT ", but not in authenticate state - ignored\n", - dev->name, MAC_ARG(mgmt->sa)); - return; - } - - if (len < 24 + 6) { - printk(KERN_DEBUG "%s: too short (%zd) authentication frame " - "received from " MAC_FMT " - ignored\n", - dev->name, len, MAC_ARG(mgmt->sa)); - return; - } - - if (sdata->type != IEEE80211_IF_TYPE_IBSS && - memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: authentication frame received from " - "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - " - "ignored\n", dev->name, MAC_ARG(mgmt->sa), - MAC_ARG(mgmt->bssid)); - return; - } - - if (sdata->type != IEEE80211_IF_TYPE_IBSS && - memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: authentication frame received from " - "unknown BSSID (SA=" MAC_FMT " BSSID=" MAC_FMT ") - " - "ignored\n", dev->name, MAC_ARG(mgmt->sa), - MAC_ARG(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 " MAC_FMT " (alg=%d " - "transaction=%d status=%d)\n", - dev->name, MAC_ARG(mgmt->sa), auth_alg, - auth_transaction, status_code); - - if (sdata->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, - rx_status); - break; - } -} - - -static void ieee80211_rx_mgmt_deauth(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - u16 reason_code; - - if (len < 24 + 2) { - printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame " - "received from " MAC_FMT " - ignored\n", - dev->name, len, MAC_ARG(mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: deauthentication frame received from " - "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - " - "ignored\n", dev->name, MAC_ARG(mgmt->sa), - MAC_ARG(mgmt->bssid)); - return; - } - - reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - - printk(KERN_DEBUG "%s: RX deauthentication from " MAC_FMT - " (reason=%d)\n", - dev->name, MAC_ARG(mgmt->sa), reason_code); - - if (ifsta->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; - schedule_delayed_work(&ifsta->work, - IEEE80211_RETRY_AUTH_INTERVAL); - } - - ieee80211_set_disassoc(dev, ifsta, 1); - ifsta->authenticated = 0; -} - - -static void ieee80211_rx_mgmt_disassoc(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status) -{ - u16 reason_code; - - if (len < 24 + 2) { - printk(KERN_DEBUG "%s: too short (%zd) disassociation frame " - "received from " MAC_FMT " - ignored\n", - dev->name, len, MAC_ARG(mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: disassociation frame received from " - "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - " - "ignored\n", dev->name, MAC_ARG(mgmt->sa), - MAC_ARG(mgmt->bssid)); - return; - } - - reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); - - printk(KERN_DEBUG "%s: RX disassociation from " MAC_FMT - " (reason=%d)\n", - dev->name, MAC_ARG(mgmt->sa), reason_code); - - if (ifsta->associated) - printk(KERN_DEBUG "%s: disassociated\n", dev->name); - - if (ifsta->state == IEEE80211_ASSOCIATED) { - ifsta->state = IEEE80211_ASSOCIATE; - schedule_delayed_work(&ifsta->work, - IEEE80211_RETRY_AUTH_INTERVAL); - } - - ieee80211_set_disassoc(dev, ifsta, 0); -} - - -static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_mgmt *mgmt, - size_t len, - struct ieee80211_rx_status *rx_status, - int reassoc) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta; - u32 rates; - u16 capab_info, status_code, aid; - struct ieee802_11_elems elems; - u8 *pos; - int i, j; - - /* 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 " - MAC_FMT ", but not in associate state - ignored\n", - dev->name, MAC_ARG(mgmt->sa)); - return; - } - - if (len < 24 + 6) { - printk(KERN_DEBUG "%s: too short (%zd) association frame " - "received from " MAC_FMT " - ignored\n", - dev->name, len, MAC_ARG(mgmt->sa)); - return; - } - - if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) { - printk(KERN_DEBUG "%s: association frame received from " - "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - " - "ignored\n", dev->name, MAC_ARG(mgmt->sa), - MAC_ARG(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); - 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)); - - printk(KERN_DEBUG "%s: RX %sssocResp from " MAC_FMT " (capab=0x%x " - "status=%d aid=%d)\n", - dev->name, reassoc ? "Rea" : "A", MAC_ARG(mgmt->sa), - capab_info, status_code, aid); - - if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: AP denied association (code=%d)\n", - dev->name, status_code); - return; - } - - pos = mgmt->u.assoc_resp.variable; - if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems) - == ParseFailed) { - printk(KERN_DEBUG "%s: failed to parse AssocResp\n", - dev->name); - return; - } - - 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_ATOMIC); - if (ifsta->assocresp_ies) - memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len); - - ieee80211_set_associated(dev, ifsta, 1); - - /* Add STA entry for the AP */ - sta = sta_info_get(local, ifsta->bssid); - if (!sta) { - sta = sta_info_add(local, dev, ifsta->bssid, GFP_ATOMIC); - if (!sta) { - printk(KERN_DEBUG "%s: failed to add STA entry for the" - " AP\n", dev->name); - return; - } - } - - sta->dev = dev; - sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC; - sta->assoc_ap = 1; - - rates = 0; - for (i = 0; i < elems.supp_rates_len; i++) { - int rate = (elems.supp_rates[i] & 0x7f) * 5; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate *= 2; - for (j = 0; j < local->num_curr_rates; j++) - if (local->curr_rates[j].rate == rate) - rates |= BIT(j); - } - for (i = 0; i < elems.ext_supp_rates_len; i++) { - int rate = (elems.ext_supp_rates[i] & 0x7f) * 5; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate *= 2; - for (j = 0; j < local->num_curr_rates; j++) - if (local->curr_rates[j].rate == rate) - rates |= BIT(j); - } - sta->supp_rates = rates; - - rate_control_rate_init(sta, local); - - if (elems.wmm_param && ifsta->wmm_enabled) { - sta->flags |= WLAN_STA_WME; - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, - elems.wmm_param_len); - } - - - 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 = 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 = 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) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sta_bss *bss; - - bss = kmalloc(sizeof(*bss), GFP_ATOMIC); - if (!bss) - return NULL; - memset(bss, 0, sizeof(*bss)); - atomic_inc(&bss->users); - atomic_inc(&bss->users); - memcpy(bss->bssid, bssid, ETH_ALEN); - - 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) -{ - struct ieee80211_local *local = 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) == 0) { - 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); -} - - -static void ieee80211_rx_bss_put(struct net_device *dev, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = 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 = 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 = 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 = dev->ieee80211_ptr; - struct ieee802_11_elems elems; - size_t baselen; - int channel, invalid = 0, clen; - struct ieee80211_sta_bss *bss; - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - u64 timestamp; - - 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 " MAC_FMT " to " MAC_FMT "\n", - dev->name, beacon ? "Beacon" : "Probe Response", - MAC_ARG(mgmt->sa), MAC_ARG(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->type == IEEE80211_IF_TYPE_IBSS && beacon && - memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) { -#ifdef CONFIG_D80211_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=" MAC_FMT " BSSID=" - MAC_FMT " TSF=0x%llx BCN=0x%llx diff=%lld " - "@%lu\n", - MAC_ARG(mgmt->sa), MAC_ARG(mgmt->bssid), - (unsigned long long)tsf, - (unsigned long long)timestamp, - (unsigned long long)(tsf - timestamp), - jiffies); - last_tsf_debug = jiffies; - } -#endif /* CONFIG_D80211_IBSS_DEBUG */ - } - - if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, - &elems) == ParseFailed) - invalid = 1; - - if (sdata->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_hw_mode *mode; - struct ieee80211_rate *rates; - size_t num_rates; - u32 supp_rates, prev_rates; - int i, j, oper_mode; - - rates = local->curr_rates; - num_rates = local->num_curr_rates; - oper_mode = local->sta_scanning ? local->scan_oper_phymode : - local->hw.conf.phymode; - list_for_each_entry(mode, &local->modes_list, list) { - if (oper_mode == mode->mode) { - rates = mode->rates; - num_rates = mode->num_rates; - break; - } - } - - 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); - if (oper_mode == MODE_ATHEROS_TURBO) - own_rate *= 2; - for (j = 0; j < num_rates; j++) - if (rates[j].rate == own_rate) - supp_rates |= BIT(j); - } - - prev_rates = sta->supp_rates; - sta->supp_rates &= supp_rates; - if (sta->supp_rates == 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 = sdata->u.sta.supp_rates_bits; - } - if (sta->supp_rates != prev_rates) { - printk(KERN_DEBUG "%s: updated supp_rates set for " - MAC_FMT " based on beacon info (0x%x & 0x%x -> " - "0x%x)\n", - dev->name, MAC_ARG(sta->addr), prev_rates, - supp_rates, sta->supp_rates); - } - sta_info_put(sta); - } - - if (!elems.ssid) - return; - - if (elems.ds_params && elems.ds_params_len == 1) - channel = elems.ds_params[0]; - else - channel = rx_status->channel; - - bss = ieee80211_rx_bss_get(dev, mgmt->bssid); - if (!bss) { - bss = ieee80211_rx_bss_add(dev, mgmt->bssid); - 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 - } - - if (bss->probe_resp && beacon) { - /* Do not allow beacon to override data from Probe Response. */ - ieee80211_rx_bss_put(dev, bss); - return; - } - - bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int); - bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info); - if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) { - memcpy(bss->ssid, elems.ssid, elems.ssid_len); - bss->ssid_len = elems.ssid_len; - } - - 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; - } - - - bss->hw_mode = rx_status->phymode; - bss->channel = channel; - bss->freq = rx_status->freq; - if (channel != rx_status->channel && - (bss->hw_mode == MODE_IEEE80211G || - bss->hw_mode == MODE_IEEE80211B) && - channel >= 1 && channel <= 14) { - static const int freq_list[] = { - 2412, 2417, 2422, 2427, 2432, 2437, 2442, - 2447, 2452, 2457, 2462, 2467, 2472, 2484 - }; - /* IEEE 802.11g/b mode can receive packets from neighboring - * channels, so map the channel into frequency. */ - bss->freq = freq_list[channel - 1]; - } - bss->timestamp = timestamp; - bss->last_update = jiffies; - bss->rssi = rx_status->ssi; - 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_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_if_sta *ifsta; - int use_protection; - size_t baselen; - struct ieee802_11_elems elems; - - ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1); - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_STA) - return; - ifsta = &sdata->u.sta; - - if (!ifsta->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; - - if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, - &elems) == ParseFailed) - return; - - use_protection = 0; - if (elems.erp_info && elems.erp_info_len >= 1) { - use_protection = - (elems.erp_info[0] & ERP_INFO_USE_PROTECTION) != 0; - } - - if (use_protection != !!ifsta->use_protection) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: CTS protection %s (BSSID=" - MAC_FMT ")\n", - dev->name, - use_protection ? "enabled" : "disabled", - MAC_ARG(ifsta->bssid)); - } - ifsta->use_protection = use_protection ? 1 : 0; - local->cts_protect_erp_frames = use_protection; - } - - if (elems.wmm_param && ifsta->wmm_enabled) { - ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param, - elems.wmm_param_len); - } -} - - -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 = 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; - - if (sdata->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_D80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX ProbeReq SA=" MAC_FMT " DA=" MAC_FMT " BSSID=" - MAC_FMT " (tx_last_beacon=%d)\n", - dev->name, MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da), - MAC_ARG(mgmt->bssid), tx_last_beacon); -#endif /* CONFIG_D80211_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 " MAC_FMT "\n", - dev->name, MAC_ARG(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_ATOMIC); - if (!skb) - return; - - resp = (struct ieee80211_mgmt *) skb->data; - memcpy(resp->da, mgmt->sa, ETH_ALEN); -#ifdef CONFIG_D80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Sending ProbeResp to " MAC_FMT "\n", - dev->name, MAC_ARG(resp->da)); -#endif /* CONFIG_D80211_IBSS_DEBUG */ - ieee80211_sta_tx(dev, skb, 0); -} - - -void ieee80211_sta_rx_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; - - 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: - 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, rx_status); - break; - case IEEE80211_STYPE_ASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, - rx_status, 0); - break; - case IEEE80211_STYPE_REASSOC_RESP: - ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, - rx_status, 1); - break; - case IEEE80211_STYPE_DEAUTH: - ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len, - rx_status); - break; - case IEEE80211_STYPE_DISASSOC: - ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len, - rx_status); - break; - default: - printk(KERN_DEBUG "%s: received unknown management frame - " - "stype=%d\n", dev->name, - (fc & IEEE80211_FCTL_STYPE) >> 4); - break; - } - - fail: - dev_kfree_skb(skb); -} - - -void 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 < 24) { - dev_kfree_skb(skb); - return; - } - - mgmt = (struct ieee80211_mgmt *) skb->data; - fc = le16_to_cpu(mgmt->frame_control); - - 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); - } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) { - ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, - rx_status); - } - } - - dev_kfree_skb(skb); -} - - -static int ieee80211_sta_active_ibss(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int active = 0; - struct sta_info *sta; - - spin_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; - } - } - spin_unlock_bh(&local->sta_lock); - - return active; -} - - -static void ieee80211_sta_expire(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct sta_info *sta, *tmp; - - spin_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 " MAC_FMT - "\n", dev->name, MAC_ARG(sta->addr)); - sta_info_free(sta, 1); - } - spin_unlock_bh(&local->sta_lock); -} - - -static void ieee80211_sta_merge_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - schedule_delayed_work(&ifsta->work, 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_work(struct work_struct *work) -{ - struct ieee80211_sub_if_data *sdata = - container_of(work, struct ieee80211_sub_if_data, u.sta.work.work); - struct net_device *dev = sdata->dev; - struct ieee80211_if_sta *ifsta; - - if (!netif_running(dev)) - return; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->type != IEEE80211_IF_TYPE_STA && - sdata->type != IEEE80211_IF_TYPE_IBSS) { - printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface " - "(type=%d)\n", dev->name, sdata->type); - return; - } - ifsta = &sdata->u.sta; - - 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_new_auth(struct net_device *dev, - struct ieee80211_if_sta *ifsta) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (sdata->type != IEEE80211_IF_TYPE_STA) - return; - - 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->associated = ifsta->auth_tries = ifsta->assoc_tries = 0; - ieee80211_authenticate(dev, ifsta); -} - - -static int ieee80211_ibss_allowed(struct ieee80211_local *local) -{ - struct ieee80211_hw_mode *mode; - int c; - - list_for_each_entry(mode, &local->modes_list, list) { - if (mode->mode != local->hw.conf.phymode) - continue; - for (c = 0; c < mode->num_channels; c++) { - struct ieee80211_channel *chan = &mode->channels[c]; - if (chan->flag & IEEE80211_CHAN_W_SCAN && - chan->chan == local->hw.conf.channel) { - if (chan->flag & IEEE80211_CHAN_W_IBSS) - return 1; - break; - } - } - } - - return 0; -} - - -extern int ieee80211_ioctl_siwfreq(struct net_device *dev, - struct iw_request_info *info, - struct iw_freq *freq, char *extra); - -static int ieee80211_sta_join_ibss(struct net_device *dev, - struct ieee80211_if_sta *ifsta, - struct ieee80211_sta_bss *bss) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct iw_freq rq; - int res, rates, i, j; - struct sk_buff *skb; - struct ieee80211_mgmt *mgmt; - struct ieee80211_tx_control control; - struct ieee80211_rate *rate; - struct rate_control_extra extra; - u8 *pos; - struct ieee80211_sub_if_data *sdata; - - /* 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; - - memset(&rq, 0, sizeof(rq)); - rq.m = bss->freq * 100000; - rq.e = 1; - res = ieee80211_ioctl_siwfreq(dev, NULL, &rq, NULL); - - if (!ieee80211_ibss_allowed(local)) { - printk(KERN_DEBUG "%s: IBSS not allowed on channel %d " - "(%d MHz)\n", dev->name, local->hw.conf.channel, - local->hw.conf.freq); - return -1; - } - - /* Set beacon template based on scan results */ - skb = dev_alloc_skb(400); - do { - if (!skb) - break; - - 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); - - pos = skb_put(skb, 2 + 1); - *pos++ = WLAN_EID_DS_PARAMS; - *pos++ = 1; - *pos++ = bss->channel; - - 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)); - memset(&extra, 0, sizeof(extra)); - extra.endidx = local->num_curr_rates; - rate = rate_control_get_rate(local, dev, skb, &extra); - if (!rate) { - printk(KERN_DEBUG "%s: Failed to determine TX rate " - "for IBSS beacon\n", dev->name); - break; - } - control.tx_rate = (local->short_preamble && - (rate->flags & IEEE80211_RATE_PREAMBLE2)) ? - rate->val2 : rate->val; - control.antenna_sel = local->hw.conf.antenna_sel; - control.power_level = local->hw.conf.power_level; - control.flags |= IEEE80211_TXCTL_NO_ACK; - control.retry_limit = 1; - control.rts_cts_duration = 0; - - 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; - for (i = 0; i < bss->supp_rates_len; i++) { - int rate = (bss->supp_rates[i] & 0x7f) * 5; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate *= 2; - for (j = 0; j < local->num_curr_rates; j++) - if (local->curr_rates[j].rate == rate) - rates |= BIT(j); - } - ifsta->supp_rates_bits = 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; - schedule_delayed_work(&ifsta->work, 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 = dev->ieee80211_ptr; - struct ieee80211_sta_bss *bss; - struct ieee80211_sub_if_data *sdata; - u8 bssid[ETH_ALEN], *pos; - int i; - -#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 " MAC_FMT "\n", - dev->name, MAC_ARG(bssid)); - - bss = ieee80211_rx_bss_add(dev, bssid); - if (!bss) - return -ENOMEM; - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - - if (local->hw.conf.beacon_int == 0) - local->hw.conf.beacon_int = 100; - bss->beacon_int = local->hw.conf.beacon_int; - bss->hw_mode = local->hw.conf.phymode; - bss->channel = local->hw.conf.channel; - bss->freq = local->hw.conf.freq; - 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 = local->num_curr_rates; - pos = bss->supp_rates; - for (i = 0; i < local->num_curr_rates; i++) { - int rate = local->curr_rates[i].rate; - if (local->hw.conf.phymode == MODE_ATHEROS_TURBO) - rate /= 2; - *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 = dev->ieee80211_ptr; - struct ieee80211_sta_bss *bss; - int found = 0; - u8 bssid[ETH_ALEN]; - int active_ibss; - - if (ifsta->ssid_len == 0) - return -EINVAL; - - active_ibss = ieee80211_sta_active_ibss(dev); -#ifdef CONFIG_D80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n", - dev->name, active_ibss); -#endif /* CONFIG_D80211_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_D80211_IBSS_DEBUG - printk(KERN_DEBUG " bssid=" MAC_FMT " found\n", - MAC_ARG(bss->bssid)); -#endif /* CONFIG_D80211_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_D80211_IBSS_DEBUG - printk(KERN_DEBUG " sta_find_ibss: selected " MAC_FMT " current " - MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid)); -#endif /* CONFIG_D80211_IBSS_DEBUG */ - if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 && - (bss = ieee80211_rx_bss_get(dev, bssid))) { - printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT - " based on configured SSID\n", - dev->name, MAC_ARG(bssid)); - return ieee80211_sta_join_ibss(dev, ifsta, bss); - } -#ifdef CONFIG_D80211_IBSS_DEBUG - printk(KERN_DEBUG " did not try to join ibss\n"); -#endif /* CONFIG_D80211_IBSS_DEBUG */ - - /* Selected IBSS not found in current scan results - try to scan */ - if (ifsta->state == IEEE80211_IBSS_JOINED && - !ieee80211_sta_active_ibss(dev)) { - schedule_delayed_work(&ifsta->work, - 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->create_ibss && - ieee80211_ibss_allowed(local)) - return ieee80211_sta_create_ibss(dev, ifsta); - if (ifsta->create_ibss) { - printk(KERN_DEBUG "%s: IBSS not allowed on the" - " configured channel %d (%d MHz)\n", - dev->name, local->hw.conf.channel, - local->hw.conf.freq); - } - - /* No IBSS found - decrease scan interval and continue - * scanning. */ - interval = IEEE80211_SCAN_INTERVAL_SLOW; - } - - ifsta->state = IEEE80211_IBSS_SEARCH; - schedule_delayed_work(&ifsta->work, 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; - struct ieee80211_if_sta *ifsta; - struct ieee80211_local *local = 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)); - /* TODO: are these ok defaults for all hw_modes? */ - qparam.aifs = 2; - qparam.cw_min = - local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 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); - } - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ifsta = &sdata->u.sta; - - if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0) - ifsta->prev_bssid_set = 0; - memcpy(ifsta->ssid, ssid, len); - memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len); - ifsta->ssid_len = len; - - ifsta->ssid_set = 1; - if (sdata->type == IEEE80211_IF_TYPE_IBSS && !ifsta->bssid_set) { - ifsta->ibss_join_req = jiffies; - ifsta->state = IEEE80211_IBSS_SEARCH; - return ieee80211_sta_find_ibss(dev, ifsta); - } - - if (ifsta->bssid_set && ifsta->state != IEEE80211_AUTHENTICATE) - ieee80211_sta_new_auth(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 (memcmp(bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0) - ifsta->bssid_set = 0; - else - ifsta->bssid_set = 1; - if (ifsta->ssid_set && ifsta->state != IEEE80211_AUTHENTICATE) - ieee80211_sta_new_auth(dev, ifsta); - - return 0; -} - - -static void ieee80211_sta_save_oper_chan(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - local->scan_oper_channel = local->hw.conf.channel; - local->scan_oper_channel_val = local->hw.conf.channel_val; - local->scan_oper_power_level = local->hw.conf.power_level; - local->scan_oper_freq = local->hw.conf.freq; - local->scan_oper_phymode = local->hw.conf.phymode; - local->scan_oper_antenna_max = local->hw.conf.antenna_max; -} - - -static int ieee80211_sta_restore_oper_chan(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - local->hw.conf.channel = local->scan_oper_channel; - local->hw.conf.channel_val = local->scan_oper_channel_val; - local->hw.conf.power_level = local->scan_oper_power_level; - local->hw.conf.freq = local->scan_oper_freq; - local->hw.conf.phymode = local->scan_oper_phymode; - local->hw.conf.antenna_max = local->scan_oper_antenna_max; - return ieee80211_hw_config(local); -} - - -static int ieee80211_active_scan(struct ieee80211_local *local) -{ - struct ieee80211_hw_mode *mode; - int c; - - list_for_each_entry(mode, &local->modes_list, list) { - if (mode->mode != local->hw.conf.phymode) - continue; - for (c = 0; c < mode->num_channels; c++) { - struct ieee80211_channel *chan = &mode->channels[c]; - if (chan->flag & IEEE80211_CHAN_W_SCAN && - chan->chan == local->hw.conf.channel) { - if (chan->flag & IEEE80211_CHAN_W_ACTIVE_SCAN) - return 1; - break; - } - } - } - - return 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 = IEEE80211_DEV_TO_SUB_IF(dev); - union iwreq_data wrqu; - - printk(KERN_DEBUG "%s: scan completed\n", dev->name); - local->sta_scanning = 0; - local->last_scan_completed = jiffies; - - memset(&wrqu, 0, sizeof(wrqu)); - wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL); - - if (sdata->type == IEEE80211_IF_TYPE_IBSS) { - struct ieee80211_if_sta *ifsta = &sdata->u.sta; - if (!ifsta->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_hw_mode *mode; - struct ieee80211_channel *chan; - int skip; - unsigned long next_delay = 0; - - if (!local->sta_scanning) - return; - - switch (local->scan_state) { - case SCAN_SET_CHANNEL: - mode = local->scan_hw_mode; - if (local->scan_hw_mode->list.next == &local->modes_list && - local->scan_channel_idx >= mode->num_channels) { - if (ieee80211_sta_restore_oper_chan(dev)) { - printk(KERN_DEBUG "%s: failed to restore " - "operational channel after scan\n", - dev->name); - } - - ieee80211_scan_completed(local_to_hw(local)); - return; - } - skip = !(local->enabled_modes & (1 << mode->mode)); - chan = &mode->channels[local->scan_channel_idx]; - if (!(chan->flag & IEEE80211_CHAN_W_SCAN) || - (sdata->type == IEEE80211_IF_TYPE_IBSS && - !(chan->flag & IEEE80211_CHAN_W_IBSS)) || - (local->hw_modes & local->enabled_modes & - (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B)) - skip = 1; - - if (!skip) { -#if 0 - printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n", - dev->name, chan->chan, chan->freq); -#endif - - local->hw.conf.channel = chan->chan; - local->hw.conf.channel_val = chan->val; - local->hw.conf.power_level = chan->power_level; - local->hw.conf.freq = chan->freq; - local->hw.conf.phymode = mode->mode; - local->hw.conf.antenna_max = chan->antenna_max; - if (ieee80211_hw_config(local)) { - printk(KERN_DEBUG "%s: failed to set channel " - "%d (%d MHz) for scan\n", dev->name, - chan->chan, chan->freq); - skip = 1; - } - } - - local->scan_channel_idx++; - if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) { - if (local->scan_hw_mode->list.next != &local->modes_list) { - local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next, - struct ieee80211_hw_mode, - list); - 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: - if (ieee80211_active_scan(local)) { - ieee80211_send_probe_req(dev, NULL, local->scan_ssid, - local->scan_ssid_len); - next_delay = IEEE80211_CHANNEL_TIME; - } else - next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; - local->scan_state = SCAN_SET_CHANNEL; - break; - } - - if (local->sta_scanning) { - if (next_delay) - schedule_delayed_work(&local->scan_work, next_delay); - else - schedule_work(&local->scan_work.work); - } -} - - -int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - - 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 - */ - - /* TODO: if assoc, move to power save mode for the duration of the - * scan */ - - if (local->sta_scanning) { - if (local->scan_dev == dev) - return 0; - return -EBUSY; - } - - printk(KERN_DEBUG "%s: starting scan\n", dev->name); - - if (local->ops->hw_scan) { - int rc = local->ops->hw_scan(local_to_hw(local), - ssid, ssid_len); - if (!rc) { - local->sta_scanning = 1; - local->scan_dev = dev; - } - return rc; - } - - ieee80211_sta_save_oper_chan(dev); - - local->sta_scanning = 1; - /* TODO: stop TX queue? */ - - 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_hw_mode = list_entry(local->modes_list.next, - struct ieee80211_hw_mode, - list); - local->scan_channel_idx = 0; - local->scan_dev = dev; - schedule_work(&local->scan_work.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 = dev->ieee80211_ptr; - struct iw_event iwe; - - if (time_after(jiffies, - bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE)) - return current_ev; - - if (!(local->enabled_modes & (1 << bss->hw_mode))) - return current_ev; - - if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY && - !bss->wpa_ie && !bss->rsn_ie) - return current_ev; - - if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID && - (local->scan_ssid_len != bss->ssid_len || - memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0)) - 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 * 100000; - iwe.u.freq.e = 1; - current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, - IW_EV_FREQ_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) { - char *buf, *p; - int i; - buf = kmalloc(30 + bss->wpa_ie_len * 2, GFP_ATOMIC); - if (buf) { - p = buf; - p += sprintf(p, "wpa_ie="); - for (i = 0; i < bss->wpa_ie_len; i++) - p+= sprintf(p, "%02x", bss->wpa_ie[i]); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, - &iwe, buf); - kfree(buf); - } - } - - if (bss && bss->rsn_ie) { - char *buf, *p; - int i; - buf = kmalloc(30 + bss->rsn_ie_len * 2, GFP_ATOMIC); - if (buf) { - p = buf; - p += sprintf(p, "rsn_ie="); - for (i = 0; i < bss->rsn_ie_len; i++) - p+= sprintf(p, "%02x", bss->rsn_ie[i]); - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, - &iwe, buf); - kfree(buf); - } - } - - 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); - } - } - - do { - char *buf, *p; - int i; - - if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO)) - break; - - buf = kmalloc(100, GFP_ATOMIC); - if (!buf) - break; - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "bcn_int=%d", bss->beacon_int); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - buf); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "rssi=%d", bss->rssi); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - buf); - - memset(&iwe, 0, sizeof(iwe)); - iwe.cmd = IWEVCUSTOM; - sprintf(buf, "capab=0x%04x", bss->capability); - iwe.u.data.length = strlen(buf); - current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, - buf); - - /* dispaly all support rates in readable format */ - p = current_ev + IW_EV_LCP_LEN; - 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); - } - /* Check if we added any rate */ - if((p - current_ev) > IW_EV_LCP_LEN) - current_ev = p; - - kfree(buf); - break; - } while (0); - - return current_ev; -} - - -int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len) -{ - struct ieee80211_local *local = 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; - if (ifsta->bssid_set && ifsta->ssid_set && - ifsta->state != IEEE80211_AUTHENTICATE) - ieee80211_sta_new_auth(dev, ifsta); - 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 = dev->ieee80211_ptr; - struct sta_info *sta; - struct ieee80211_sub_if_data *sdata = NULL; - struct net_device *sta_dev = NULL; - - /* 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 " MAC_FMT "\n", dev->name, MAC_ARG(addr)); - } - return NULL; - } - - spin_lock_bh(&local->sub_if_lock); - list_for_each_entry(sdata, &local->sub_if_list, list) - if (sdata->type == IEEE80211_IF_TYPE_IBSS && - memcmp(bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) { - sta_dev = sdata->dev; - break; - } - spin_unlock_bh(&local->sub_if_lock); - - if (!sta_dev) - return NULL; - - printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n", - dev->name, MAC_ARG(addr), sta_dev->name); - - sta = sta_info_add(local, dev, addr, GFP_ATOMIC); - if (!sta) - return NULL; - - sta->dev = sta_dev; - sta->supp_rates = sdata->u.sta.supp_rates_bits; - - 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->type != IEEE80211_IF_TYPE_STA && - sdata->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->type != IEEE80211_IF_TYPE_STA) - return -EINVAL; - - if (!ifsta->associated) - return -1; - - ieee80211_send_disassoc(dev, ifsta, reason); - ieee80211_set_disassoc(dev, ifsta, 0); - return 0; -} diff --git a/package/d80211/src/ieee80211_sysfs.c b/package/d80211/src/ieee80211_sysfs.c deleted file mode 100644 index b9d0973d1b..0000000000 --- a/package/d80211/src/ieee80211_sysfs.c +++ /dev/null @@ -1,785 +0,0 @@ -/* - * 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/device.h> -#include <linux/if.h> -#include <linux/interrupt.h> -#include <linux/netdevice.h> -#include <linux/rtnetlink.h> -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" - -#define to_ieee80211_local(class) \ - container_of(class, struct ieee80211_local, class_dev) -#define to_net_dev(class) \ - container_of(class, struct net_device, class_dev) - -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; -} - -static const char *ieee80211_mode_str_short(int mode) -{ - switch (mode) { - case MODE_IEEE80211A: - return "802.11a"; - case MODE_IEEE80211B: - return "802.11b"; - case MODE_IEEE80211G: - return "802.11g"; - case MODE_ATHEROS_TURBO: - return "AtherosTurbo"; - default: - return "UNKNOWN"; - } -} - -static const char *ieee80211_mode_str(int mode) -{ - switch (mode) { - case MODE_IEEE80211A: - return "IEEE 802.11a"; - case MODE_IEEE80211B: - return "IEEE 802.11b"; - case MODE_IEEE80211G: - return "IEEE 802.11g"; - case MODE_ATHEROS_TURBO: - return "Atheros Turbo (5 GHz)"; - default: - return "UNKNOWN"; - } -} - -/* attributes in /sys/class/ieee80211/phyX/ */ - -static ssize_t store_add_iface(struct class_device *dev, - const char *buf, size_t len) -{ - struct ieee80211_local *local = to_ieee80211_local(dev); - struct net_device *new_dev; - int res; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (len > IFNAMSIZ) - return -EINVAL; - res = rtnl_lock_local(local); - if (res) - return res; - res = ieee80211_if_add(local->mdev, buf, 0, &new_dev); - if (res == 0) - ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_STA); - rtnl_unlock(); - return res < 0 ? res : len; -} - -static ssize_t store_remove_iface(struct class_device *dev, - const char *buf, size_t len) -{ - struct ieee80211_local *local = to_ieee80211_local(dev); - int res; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - if (len > IFNAMSIZ) - return -EINVAL; - res = rtnl_lock_local(local); - if (res) - return res; - res = ieee80211_if_remove(local->mdev, buf, -1); - rtnl_unlock(); - return res < 0 ? res : len; -} - -static ssize_t store_rate_ctrl_alg(struct class_device *dev, - const char *buf, size_t len) -{ - struct ieee80211_local *local = to_ieee80211_local(dev); - int res; - - if (!capable(CAP_NET_ADMIN)) - return -EPERM; - res = rtnl_lock_local(local); - if (res) - return res; - res = ieee80211_init_rate_ctrl_alg(local, buf); - rtnl_unlock(); - return res < 0 ? res : len; -} - -static ssize_t ieee80211_local_show(struct class_device *dev, char *buf, - ssize_t (*format)(struct ieee80211_local *, char *)) -{ - struct ieee80211_local *local = to_ieee80211_local(dev); - ssize_t ret = -EINVAL; - - if (local->reg_state == IEEE80211_DEV_REGISTERED) - ret = (*format)(local, buf); - return ret; -} - -#define IEEE80211_LOCAL_FMT(name, field, format_string) \ -static ssize_t ieee80211_local_fmt_##name(struct ieee80211_local *local,\ - char *buf) \ -{ \ - return sprintf(buf, format_string, local->field); \ -} - -#define __IEEE80211_LOCAL_SHOW(name) \ -static ssize_t ieee80211_local_show_##name(struct class_device *cd, \ - char *buf) \ -{ \ - return ieee80211_local_show(cd, buf, \ - ieee80211_local_fmt_##name); \ -} - -#define IEEE80211_LOCAL_SHOW(name, field, format) \ - IEEE80211_LOCAL_FMT(name, field, format "\n") \ - __IEEE80211_LOCAL_SHOW(name) - -IEEE80211_LOCAL_SHOW(channel, hw.conf.channel, "%d"); -IEEE80211_LOCAL_SHOW(frequency, hw.conf.freq, "%d"); -IEEE80211_LOCAL_SHOW(radar_detect, hw.conf.radar_detect, "%d"); -IEEE80211_LOCAL_SHOW(antenna_sel, hw.conf.antenna_sel, "%d"); -IEEE80211_LOCAL_SHOW(bridge_packets, bridge_packets, "%d"); -IEEE80211_LOCAL_SHOW(key_tx_rx_threshold, key_tx_rx_threshold, "%d"); -IEEE80211_LOCAL_SHOW(rts_threshold, rts_threshold, "%d"); -IEEE80211_LOCAL_SHOW(fragmentation_threshold, fragmentation_threshold, "%d"); -IEEE80211_LOCAL_SHOW(short_retry_limit, short_retry_limit, "%d"); -IEEE80211_LOCAL_SHOW(long_retry_limit, long_retry_limit, "%d"); -IEEE80211_LOCAL_SHOW(total_ps_buffered, total_ps_buffered, "%d"); - -static ssize_t ieee80211_local_fmt_mode(struct ieee80211_local *local, - char *buf) -{ - return sprintf(buf, "%s\n", ieee80211_mode_str(local->hw.conf.phymode)); -} -__IEEE80211_LOCAL_SHOW(mode); - -static ssize_t ieee80211_local_fmt_wep_iv(struct ieee80211_local *local, - char *buf) -{ - return sprintf(buf, "%#06x\n", local->wep_iv & 0xffffff); -} -__IEEE80211_LOCAL_SHOW(wep_iv); - -static ssize_t ieee80211_local_fmt_tx_power_reduction(struct ieee80211_local - *local, char *buf) -{ - short tx_power_reduction = local->hw.conf.tx_power_reduction; - - return sprintf(buf, "%d.%d dBm\n", tx_power_reduction / 10, - tx_power_reduction % 10); -} -__IEEE80211_LOCAL_SHOW(tx_power_reduction); - -static ssize_t ieee80211_local_fmt_modes(struct ieee80211_local *local, - char *buf) -{ - struct ieee80211_hw_mode *mode; - char *p = buf; - - /* FIXME: Locking? Could register a mode in the meantime. */ - list_for_each_entry(mode, &local->modes_list, list) - p += sprintf(p, "%s\n", ieee80211_mode_str_short(mode->mode)); - - return (p - buf); -} -__IEEE80211_LOCAL_SHOW(modes); - -static ssize_t ieee80211_local_fmt_rate_ctrl_alg(struct ieee80211_local *local, - char *buf) -{ - struct rate_control_ref *ref = local->rate_ctrl; - if (ref) - return sprintf(buf, "%s\n", ref->ops->name); - return 0; -} -__IEEE80211_LOCAL_SHOW(rate_ctrl_alg); - -static struct class_device_attribute ieee80211_class_dev_attrs[] = { - __ATTR(add_iface, S_IWUGO, NULL, store_add_iface), - __ATTR(remove_iface, S_IWUGO, NULL, store_remove_iface), - __ATTR(channel, S_IRUGO, ieee80211_local_show_channel, NULL), - __ATTR(frequency, S_IRUGO, ieee80211_local_show_frequency, NULL), - __ATTR(radar_detect, S_IRUGO, ieee80211_local_show_radar_detect, NULL), - __ATTR(antenna_sel, S_IRUGO, ieee80211_local_show_antenna_sel, NULL), - __ATTR(bridge_packets, S_IRUGO, ieee80211_local_show_bridge_packets, NULL), - __ATTR(key_tx_rx_threshold, S_IRUGO, ieee80211_local_show_key_tx_rx_threshold, NULL), - __ATTR(rts_threshold, S_IRUGO, ieee80211_local_show_rts_threshold, NULL), - __ATTR(fragmentation_threshold, S_IRUGO, ieee80211_local_show_fragmentation_threshold, NULL), - __ATTR(short_retry_limit, S_IRUGO, ieee80211_local_show_short_retry_limit, NULL), - __ATTR(long_retry_limit, S_IRUGO, ieee80211_local_show_long_retry_limit, NULL), - __ATTR(total_ps_buffered, S_IRUGO, ieee80211_local_show_total_ps_buffered, NULL), - __ATTR(mode, S_IRUGO, ieee80211_local_show_mode, NULL), - __ATTR(wep_iv, S_IRUGO, ieee80211_local_show_wep_iv, NULL), - __ATTR(tx_power_reduction, S_IRUGO, ieee80211_local_show_tx_power_reduction, NULL), - __ATTR(modes, S_IRUGO, ieee80211_local_show_modes, NULL), - __ATTR(rate_ctrl_alg, S_IRUGO | S_IWUGO, ieee80211_local_show_rate_ctrl_alg, store_rate_ctrl_alg), - {} -}; - -/* attributes in /sys/class/ieee80211/phyX/statistics/ */ - -#define IEEE80211_LOCAL_ATTR(name, field, format) \ -IEEE80211_LOCAL_SHOW(name, field, format) \ -static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_local_show_##name, NULL); - -IEEE80211_LOCAL_ATTR(transmitted_fragment_count, dot11TransmittedFragmentCount, "%u"); -IEEE80211_LOCAL_ATTR(multicast_transmitted_frame_count, dot11MulticastTransmittedFrameCount, "%u"); -IEEE80211_LOCAL_ATTR(failed_count, dot11FailedCount, "%u"); -IEEE80211_LOCAL_ATTR(retry_count, dot11RetryCount, "%u"); -IEEE80211_LOCAL_ATTR(multiple_retry_count, dot11MultipleRetryCount, "%u"); -IEEE80211_LOCAL_ATTR(frame_duplicate_count, dot11FrameDuplicateCount, "%u"); -IEEE80211_LOCAL_ATTR(received_fragment_count, dot11ReceivedFragmentCount, "%u"); -IEEE80211_LOCAL_ATTR(multicast_received_frame_count, dot11MulticastReceivedFrameCount, "%u"); -IEEE80211_LOCAL_ATTR(transmitted_frame_count, dot11TransmittedFrameCount, "%u"); -IEEE80211_LOCAL_ATTR(wep_undecryptable_count, dot11WEPUndecryptableCount, "%u"); -IEEE80211_LOCAL_ATTR(num_scans, scan.num_scans, "%u"); - -#ifdef CONFIG_D80211_DEBUG_COUNTERS -IEEE80211_LOCAL_ATTR(tx_handlers_drop, tx_handlers_drop, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_queued, tx_handlers_queued, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_drop_unencrypted, tx_handlers_drop_unencrypted, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_drop_fragment, tx_handlers_drop_fragment, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_drop_wep, tx_handlers_drop_wep, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_drop_not_assoc, tx_handlers_drop_not_assoc, "%u"); -IEEE80211_LOCAL_ATTR(tx_handlers_drop_unauth_port, tx_handlers_drop_unauth_port, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_drop, rx_handlers_drop, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_queued, rx_handlers_queued, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_drop_nullfunc, rx_handlers_drop_nullfunc, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_drop_defrag, rx_handlers_drop_defrag, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_drop_short, rx_handlers_drop_short, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_drop_passive_scan, rx_handlers_drop_passive_scan, "%u"); -IEEE80211_LOCAL_ATTR(tx_expand_skb_head, tx_expand_skb_head, "%u"); -IEEE80211_LOCAL_ATTR(tx_expand_skb_head_cloned, tx_expand_skb_head_cloned, "%u"); -IEEE80211_LOCAL_ATTR(rx_expand_skb_head, rx_expand_skb_head, "%u"); -IEEE80211_LOCAL_ATTR(rx_expand_skb_head2, rx_expand_skb_head2, "%u"); -IEEE80211_LOCAL_ATTR(rx_handlers_fragments, rx_handlers_fragments, "%u"); -IEEE80211_LOCAL_ATTR(tx_status_drop, tx_status_drop, "%u"); - -static ssize_t ieee80211_local_fmt_wme_rx_queue(struct ieee80211_local *local, - char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%u\n", local->wme_rx_queue[i]); - return (p - buf); -} -__IEEE80211_LOCAL_SHOW(wme_rx_queue); -static CLASS_DEVICE_ATTR(wme_rx_queue, S_IRUGO, - ieee80211_local_show_wme_rx_queue, NULL); - -static ssize_t ieee80211_local_fmt_wme_tx_queue(struct ieee80211_local *local, - char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%u\n", local->wme_tx_queue[i]); - return (p - buf); -} -__IEEE80211_LOCAL_SHOW(wme_tx_queue); -static CLASS_DEVICE_ATTR(wme_tx_queue, S_IRUGO, - ieee80211_local_show_wme_tx_queue, NULL); -#endif - -static ssize_t ieee80211_stats_show(struct class_device *dev, char *buf, - ssize_t (*format)(struct ieee80211_low_level_stats *, char *)) -{ - struct ieee80211_local *local = to_ieee80211_local(dev); - struct ieee80211_low_level_stats stats; - ssize_t ret = -EINVAL; - - if (!local->ops->get_stats) - return -EOPNOTSUPP; - ret = rtnl_lock_local(local); - if (ret) - return ret; - ret = local->ops->get_stats(local_to_hw(local), &stats); - rtnl_unlock(); - if (!ret) - ret = (*format)(&stats, buf); - return ret; -} - -#define IEEE80211_STATS_FMT(name, field, format_string) \ -static ssize_t ieee80211_stats_fmt_##name(struct ieee80211_low_level_stats \ - *stats, char *buf) \ -{ \ - return sprintf(buf, format_string, stats->field); \ -} - -#define __IEEE80211_STATS_SHOW(name) \ -static ssize_t ieee80211_stats_show_##name(struct class_device *cd, \ - char *buf) \ -{ \ - return ieee80211_stats_show(cd, buf, \ - ieee80211_stats_fmt_##name); \ -} - -#define IEEE80211_STATS_ATTR(name, field, format) \ -IEEE80211_STATS_FMT(name, field, format "\n") \ -__IEEE80211_STATS_SHOW(name) \ -static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_stats_show_##name, NULL); - -IEEE80211_STATS_ATTR(ack_failure_count, dot11ACKFailureCount, "%u"); -IEEE80211_STATS_ATTR(rts_failure_count, dot11RTSFailureCount, "%u"); -IEEE80211_STATS_ATTR(fcs_error_count, dot11FCSErrorCount, "%u"); -IEEE80211_STATS_ATTR(rts_success_count, dot11RTSSuccessCount, "%u"); - -static struct attribute *ieee80211_stats_attrs[] = { - &class_device_attr_transmitted_fragment_count.attr, - &class_device_attr_multicast_transmitted_frame_count.attr, - &class_device_attr_failed_count.attr, - &class_device_attr_retry_count.attr, - &class_device_attr_multiple_retry_count.attr, - &class_device_attr_frame_duplicate_count.attr, - &class_device_attr_received_fragment_count.attr, - &class_device_attr_multicast_received_frame_count.attr, - &class_device_attr_transmitted_frame_count.attr, - &class_device_attr_wep_undecryptable_count.attr, - &class_device_attr_ack_failure_count.attr, - &class_device_attr_rts_failure_count.attr, - &class_device_attr_fcs_error_count.attr, - &class_device_attr_rts_success_count.attr, - &class_device_attr_num_scans.attr, -#ifdef CONFIG_D80211_DEBUG_COUNTERS - &class_device_attr_tx_handlers_drop.attr, - &class_device_attr_tx_handlers_queued.attr, - &class_device_attr_tx_handlers_drop_unencrypted.attr, - &class_device_attr_tx_handlers_drop_fragment.attr, - &class_device_attr_tx_handlers_drop_wep.attr, - &class_device_attr_tx_handlers_drop_not_assoc.attr, - &class_device_attr_tx_handlers_drop_unauth_port.attr, - &class_device_attr_rx_handlers_drop.attr, - &class_device_attr_rx_handlers_queued.attr, - &class_device_attr_rx_handlers_drop_nullfunc.attr, - &class_device_attr_rx_handlers_drop_defrag.attr, - &class_device_attr_rx_handlers_drop_short.attr, - &class_device_attr_rx_handlers_drop_passive_scan.attr, - &class_device_attr_tx_expand_skb_head.attr, - &class_device_attr_tx_expand_skb_head_cloned.attr, - &class_device_attr_rx_expand_skb_head.attr, - &class_device_attr_rx_expand_skb_head2.attr, - &class_device_attr_rx_handlers_fragments.attr, - &class_device_attr_tx_status_drop.attr, - &class_device_attr_wme_rx_queue.attr, - &class_device_attr_wme_tx_queue.attr, -#endif - NULL, -}; - -static struct attribute_group ieee80211_stats_group = { - .name = "statistics", - .attrs = ieee80211_stats_attrs, -}; - -/* attributes in /sys/class/net/X/ */ - -static ssize_t ieee80211_if_show(struct class_device *cd, char *buf, - ssize_t (*format)(const struct ieee80211_sub_if_data *, - char *)) -{ - struct net_device *dev = to_net_dev(cd); - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - ssize_t ret = -EINVAL; - - read_lock(&dev_base_lock); - if (dev->reg_state == NETREG_REGISTERED) { - ret = (*format)(sdata, buf); - } - 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) \ -{ \ - return sprintf(buf, 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) \ -{ \ - return sprintf(buf, "%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) \ -{ \ - return sprintf(buf, MAC_FMT "\n", MAC_ARG(sdata->field)); \ -} - -#define __IEEE80211_IF_SHOW(name) \ -static ssize_t ieee80211_if_show_##name(struct class_device *cd, \ - char *buf) \ -{ \ - return ieee80211_if_show(cd, buf, ieee80211_if_fmt_##name); \ -} \ -static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_if_show_##name, NULL); - -#define IEEE80211_IF_SHOW(name, field, format) \ - IEEE80211_IF_FMT_##format(name, field) \ - __IEEE80211_IF_SHOW(name) - -/* common attributes */ -IEEE80211_IF_SHOW(channel_use, channel_use, DEC); -IEEE80211_IF_SHOW(drop_unencrypted, drop_unencrypted, DEC); -IEEE80211_IF_SHOW(eapol, eapol, DEC); -IEEE80211_IF_SHOW(ieee8021_x, ieee802_1x, DEC); - -/* STA/IBSS attributes */ -IEEE80211_IF_SHOW(state, u.sta.state, DEC); -IEEE80211_IF_SHOW(bssid, u.sta.bssid, MAC); -IEEE80211_IF_SHOW(prev_bssid, u.sta.prev_bssid, MAC); -IEEE80211_IF_SHOW(ssid_len, u.sta.ssid_len, SIZE); -IEEE80211_IF_SHOW(aid, u.sta.aid, DEC); -IEEE80211_IF_SHOW(ap_capab, u.sta.ap_capab, HEX); -IEEE80211_IF_SHOW(capab, u.sta.capab, HEX); -IEEE80211_IF_SHOW(extra_ie_len, u.sta.extra_ie_len, SIZE); -IEEE80211_IF_SHOW(auth_tries, u.sta.auth_tries, DEC); -IEEE80211_IF_SHOW(assoc_tries, u.sta.assoc_tries, DEC); -IEEE80211_IF_SHOW(auth_algs, u.sta.auth_algs, HEX); -IEEE80211_IF_SHOW(auth_alg, u.sta.auth_alg, DEC); -IEEE80211_IF_SHOW(auth_transaction, u.sta.auth_transaction, DEC); - -static ssize_t ieee80211_if_fmt_flags(const struct - ieee80211_sub_if_data *sdata, char *buf) -{ - return sprintf(buf, "%s%s%s%s%s%s%s\n", - sdata->u.sta.ssid_set ? "SSID\n" : "", - sdata->u.sta.bssid_set ? "BSSID\n" : "", - sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "", - sdata->u.sta.authenticated ? "AUTH\n" : "", - sdata->u.sta.associated ? "ASSOC\n" : "", - sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "", - sdata->u.sta.use_protection ? "CTS prot\n" : ""); -} -__IEEE80211_IF_SHOW(flags); - -/* AP attributes */ -IEEE80211_IF_SHOW(num_sta_ps, u.ap.num_sta_ps, ATOMIC); -IEEE80211_IF_SHOW(dtim_period, u.ap.dtim_period, DEC); -IEEE80211_IF_SHOW(dtim_count, u.ap.dtim_count, DEC); -IEEE80211_IF_SHOW(num_beacons, u.ap.num_beacons, DEC); -IEEE80211_IF_SHOW(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC); -IEEE80211_IF_SHOW(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) -{ - return sprintf(buf, "%u\n", skb_queue_len(&sdata->u.ap.ps_bc_buf)); -} -__IEEE80211_IF_SHOW(num_buffered_multicast); - -static ssize_t ieee80211_if_fmt_beacon_head_len(const struct - ieee80211_sub_if_data *sdata, char *buf) -{ - if (sdata->u.ap.beacon_head) - return sprintf(buf, "%d\n", sdata->u.ap.beacon_head_len); - return sprintf(buf, "\n"); -} -__IEEE80211_IF_SHOW(beacon_head_len); - -static ssize_t ieee80211_if_fmt_beacon_tail_len(const struct - ieee80211_sub_if_data *sdata, char *buf) -{ - if (sdata->u.ap.beacon_tail) - return sprintf(buf, "%d\n", sdata->u.ap.beacon_tail_len); - return sprintf(buf, "\n"); -} -__IEEE80211_IF_SHOW(beacon_tail_len); - -/* WDS attributes */ -IEEE80211_IF_SHOW(peer, u.wds.remote_addr, MAC); - -/* VLAN attributes */ -IEEE80211_IF_SHOW(vlan_id, u.vlan.id, DEC); - -/* MONITOR attributes */ -static ssize_t ieee80211_if_fmt_mode(const struct - ieee80211_sub_if_data *sdata, char *buf) -{ - struct ieee80211_local *local = sdata->local; - - return sprintf(buf, "%s\n", - ((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) || - local->open_count == local->monitors) ? - "hard" : "soft"); -} -__IEEE80211_IF_SHOW(mode); - -static struct attribute *ieee80211_sta_attrs[] = { - &class_device_attr_channel_use.attr, - &class_device_attr_drop_unencrypted.attr, - &class_device_attr_eapol.attr, - &class_device_attr_ieee8021_x.attr, - &class_device_attr_state.attr, - &class_device_attr_bssid.attr, - &class_device_attr_prev_bssid.attr, - &class_device_attr_ssid_len.attr, - &class_device_attr_aid.attr, - &class_device_attr_ap_capab.attr, - &class_device_attr_capab.attr, - &class_device_attr_extra_ie_len.attr, - &class_device_attr_auth_tries.attr, - &class_device_attr_assoc_tries.attr, - &class_device_attr_auth_algs.attr, - &class_device_attr_auth_alg.attr, - &class_device_attr_auth_transaction.attr, - &class_device_attr_flags.attr, - NULL -}; - -static struct attribute *ieee80211_ap_attrs[] = { - &class_device_attr_channel_use.attr, - &class_device_attr_drop_unencrypted.attr, - &class_device_attr_eapol.attr, - &class_device_attr_ieee8021_x.attr, - &class_device_attr_num_sta_ps.attr, - &class_device_attr_dtim_period.attr, - &class_device_attr_dtim_count.attr, - &class_device_attr_num_beacons.attr, - &class_device_attr_force_unicast_rateidx.attr, - &class_device_attr_max_ratectrl_rateidx.attr, - &class_device_attr_num_buffered_multicast.attr, - &class_device_attr_beacon_head_len.attr, - &class_device_attr_beacon_tail_len.attr, - NULL -}; - -static struct attribute *ieee80211_wds_attrs[] = { - &class_device_attr_channel_use.attr, - &class_device_attr_drop_unencrypted.attr, - &class_device_attr_eapol.attr, - &class_device_attr_ieee8021_x.attr, - &class_device_attr_peer.attr, - NULL -}; - -static struct attribute *ieee80211_vlan_attrs[] = { - &class_device_attr_channel_use.attr, - &class_device_attr_drop_unencrypted.attr, - &class_device_attr_eapol.attr, - &class_device_attr_ieee8021_x.attr, - &class_device_attr_vlan_id.attr, - NULL -}; - -static struct attribute *ieee80211_monitor_attrs[] = { - &class_device_attr_mode.attr, - NULL -}; - -static struct attribute_group ieee80211_sta_group = { - .name = "sta", - .attrs = ieee80211_sta_attrs, -}; - -static struct attribute_group ieee80211_ap_group = { - .name = "ap", - .attrs = ieee80211_ap_attrs, -}; - -static struct attribute_group ieee80211_wds_group = { - .name = "wds", - .attrs = ieee80211_wds_attrs, -}; - -static struct attribute_group ieee80211_vlan_group = { - .name = "vlan", - .attrs = ieee80211_vlan_attrs, -}; - -static struct attribute_group ieee80211_monitor_group = { - .name = "monitor", - .attrs = ieee80211_monitor_attrs, -}; - -/* /sys/class/ieee80211/phyX functions */ - -static void ieee80211_class_dev_release(struct class_device *dev) -{ - ieee80211_release_hw(to_ieee80211_local(dev)); -} - -#ifdef CONFIG_HOTPLUG -static int ieee80211_uevent(struct class_device *cd, char **envp, - int num_envp, char *buf, int size) -{ - struct ieee80211_local *local = to_ieee80211_local(cd); - - if (num_envp < 2) - return -ENOMEM; - envp[0] = buf; - if (snprintf(buf, size, "IEEE80211_DEV=phy%d", - local->hw.index) + 1 >= size) - return -ENOMEM; - envp[1] = NULL; - return 0; -} -#endif - -static struct class ieee80211_class = { - .name = "ieee80211", - .class_dev_attrs = ieee80211_class_dev_attrs, - .release = ieee80211_class_dev_release, -#ifdef CONFIG_HOTPLUG - .uevent = ieee80211_uevent, -#endif -}; - -void ieee80211_dev_sysfs_init(struct ieee80211_local *local) -{ - local->class_dev.class = &ieee80211_class; - local->class_dev.class_data = local; - class_device_initialize(&local->class_dev); -} - -void ieee80211_dev_sysfs_put(struct ieee80211_local *local) -{ - class_device_put(&local->class_dev); -} - -int ieee80211_dev_sysfs_add(struct ieee80211_local *local) -{ - int res; - - snprintf(local->class_dev.class_id, BUS_ID_SIZE, - "phy%d", local->hw.index); - res = class_device_add(&local->class_dev); - if (res) - return res; - res = sysfs_create_group(&local->class_dev.kobj, - &ieee80211_stats_group); - if (res) - class_device_del(&local->class_dev); - return res; -} - -void ieee80211_dev_sysfs_del(struct ieee80211_local *local) -{ - sysfs_remove_group(&local->class_dev.kobj, &ieee80211_stats_group); - class_device_del(&local->class_dev); -} - -/* /sys/class/net/X functions */ - -static void __ieee80211_remove_if_group(struct kobject *kobj, - struct ieee80211_sub_if_data *sdata) -{ - if (sdata->sysfs_group) { - sysfs_remove_group(kobj, sdata->sysfs_group); - sdata->sysfs_group = NULL; - } -} - -static inline void ieee80211_remove_if_group(struct kobject *kobj, - struct net_device *dev) -{ - __ieee80211_remove_if_group(kobj, IEEE80211_DEV_TO_SUB_IF(dev)); -} - -static int ieee80211_add_if_group(struct kobject *kobj, - struct net_device *dev) -{ - struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); - int res = 0; - - __ieee80211_remove_if_group(kobj, sdata); - switch (sdata->type) { - case IEEE80211_IF_TYPE_STA: - sdata->sysfs_group = &ieee80211_sta_group; - break; - case IEEE80211_IF_TYPE_AP: - sdata->sysfs_group = &ieee80211_ap_group; - break; - case IEEE80211_IF_TYPE_WDS: - sdata->sysfs_group = &ieee80211_wds_group; - break; - case IEEE80211_IF_TYPE_VLAN: - sdata->sysfs_group = &ieee80211_vlan_group; - break; - case IEEE80211_IF_TYPE_MNTR: - sdata->sysfs_group = &ieee80211_monitor_group; - break; - default: - goto out; - } - res = sysfs_create_group(kobj, sdata->sysfs_group); - if (res) - sdata->sysfs_group = NULL; -out: - return res; -} - -int ieee80211_sysfs_change_if_type(struct net_device *dev) -{ - return ieee80211_add_if_group(&dev->class_dev.kobj, dev); -} - -int ieee80211_sysfs_add_netdevice(struct net_device *dev) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - int res; - - res = sysfs_create_link(&dev->class_dev.kobj, &local->class_dev.kobj, - "hw"); - if (res) - goto err_out; - res = ieee80211_add_if_group(&dev->class_dev.kobj, dev); - if (res) - goto err_link; - res = ieee80211_key_kset_sysfs_register(IEEE80211_DEV_TO_SUB_IF(dev)); - return res; - -err_link: - sysfs_remove_link(&dev->class_dev.kobj, "hw"); -err_out: - return res; -} - -void ieee80211_sysfs_remove_netdevice(struct net_device *dev) -{ - ieee80211_key_kset_sysfs_unregister(IEEE80211_DEV_TO_SUB_IF(dev)); - ieee80211_remove_if_group(&dev->class_dev.kobj, dev); - sysfs_remove_link(&dev->class_dev.kobj, "hw"); -} - -/* general module functions */ - -int ieee80211_sysfs_init(void) -{ - return class_register(&ieee80211_class); -} - -void ieee80211_sysfs_deinit(void) -{ - class_unregister(&ieee80211_class); -} diff --git a/package/d80211/src/ieee80211_sysfs_sta.c b/package/d80211/src/ieee80211_sysfs_sta.c deleted file mode 100644 index 738daf5af7..0000000000 --- a/package/d80211/src/ieee80211_sysfs_sta.c +++ /dev/null @@ -1,437 +0,0 @@ -/* - * Copyright 2003-2005, 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. - */ - -#include <linux/kobject.h> -#include <linux/sysfs.h> -#include "ieee80211_i.h" -#include "ieee80211_key.h" -#include "sta_info.h" - -static ssize_t sta_sysfs_show(struct kobject *, struct attribute *, char *); -static ssize_t key_sysfs_show(struct kobject *, struct attribute *, char *); - -static struct sysfs_ops sta_ktype_ops = { - .show = sta_sysfs_show, -}; - -static struct sysfs_ops key_ktype_ops = { - .show = key_sysfs_show, -}; - -/* sta attributtes */ - -#define STA_SHOW(name, field, format_string) \ -static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \ -{ \ - return sprintf(buf, format_string, sta->field); \ -} -#define STA_SHOW_D(name, field) STA_SHOW(name, field, "%d\n") -#define STA_SHOW_U(name, field) STA_SHOW(name, field, "%u\n") -#define STA_SHOW_LU(name, field) STA_SHOW(name, field, "%lu\n") -#define STA_SHOW_S(name, field) STA_SHOW(name, field, "%s\n") - -#define STA_SHOW_RATE(name, field) \ -static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \ -{ \ - struct ieee80211_local *local = sta->dev->ieee80211_ptr; \ - return sprintf(buf, "%d\n", \ - (sta->field >= 0 && \ - sta->field < local->num_curr_rates) ? \ - local->curr_rates[sta->field].rate : -1); \ -} - -#define __STA_ATTR(name) \ -static struct sta_attribute sta_attr_##name = \ - __ATTR(name, S_IRUGO, show_sta_##name, NULL) - -#define STA_ATTR(name, field, format) \ - STA_SHOW_##format(name, field) \ - __STA_ATTR(name) - -STA_ATTR(aid, aid, D); -STA_ATTR(key_idx_compression, key_idx_compression, D); -STA_ATTR(dev, dev->name, S); -STA_ATTR(vlan_id, vlan_id, D); -STA_ATTR(rx_packets, rx_packets, LU); -STA_ATTR(tx_packets, tx_packets, LU); -STA_ATTR(rx_bytes, rx_bytes, LU); -STA_ATTR(tx_bytes, tx_bytes, LU); -STA_ATTR(rx_duplicates, num_duplicates, LU); -STA_ATTR(rx_fragments, rx_fragments, LU); -STA_ATTR(rx_dropped, rx_dropped, LU); -STA_ATTR(tx_fragments, tx_fragments, LU); -STA_ATTR(tx_filtered, tx_filtered_count, LU); -STA_ATTR(txrate, txrate, RATE); -STA_ATTR(last_txrate, last_txrate, RATE); -STA_ATTR(tx_retry_failed, tx_retry_failed, LU); -STA_ATTR(tx_retry_count, tx_retry_count, LU); -STA_ATTR(last_rssi, last_rssi, D); -STA_ATTR(last_signal, last_signal, D); -STA_ATTR(last_noise, last_noise, D); -STA_ATTR(channel_use, channel_use, D); -STA_ATTR(wep_weak_iv_count, wep_weak_iv_count, D); - -static ssize_t show_sta_flags(const struct sta_info *sta, char *buf) -{ - return sprintf(buf, "%s%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_PERM ? "PERM\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" : ""); -} -__STA_ATTR(flags); - -static ssize_t show_sta_num_ps_buf_frames(const struct sta_info *sta, char *buf) -{ - return sprintf(buf, "%u\n", skb_queue_len(&sta->ps_tx_buf)); -} -__STA_ATTR(num_ps_buf_frames); - -static ssize_t show_sta_last_ack_rssi(const struct sta_info *sta, char *buf) -{ - return sprintf(buf, "%d %d %d\n", sta->last_ack_rssi[0], - sta->last_ack_rssi[1], sta->last_ack_rssi[2]); -} -__STA_ATTR(last_ack_rssi); - -static ssize_t show_sta_last_ack_ms(const struct sta_info *sta, char *buf) -{ - return sprintf(buf, "%d\n", sta->last_ack ? - jiffies_to_msecs(jiffies - sta->last_ack) : -1); -} -__STA_ATTR(last_ack_ms); - -static ssize_t show_sta_inactive_ms(const struct sta_info *sta, char *buf) -{ - return sprintf(buf, "%d\n", jiffies_to_msecs(jiffies - sta->last_rx)); -} -__STA_ATTR(inactive_ms); - -static ssize_t show_sta_last_seq_ctrl(const struct sta_info *sta, char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%x ", sta->last_seq_ctrl[i]); - p += sprintf(p, "\n"); - return (p - buf); -} -__STA_ATTR(last_seq_ctrl); - -#ifdef CONFIG_D80211_DEBUG_COUNTERS -static ssize_t show_sta_wme_rx_queue(const struct sta_info *sta, char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%u ", sta->wme_rx_queue[i]); - p += sprintf(p, "\n"); - return (p - buf); -} -__STA_ATTR(wme_rx_queue); - -static ssize_t show_sta_wme_tx_queue(const struct sta_info *sta, char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%u ", sta->wme_tx_queue[i]); - p += sprintf(p, "\n"); - return (p - buf); -} -__STA_ATTR(wme_tx_queue); -#endif - -static struct attribute *sta_ktype_attrs[] = { - &sta_attr_aid.attr, - &sta_attr_key_idx_compression.attr, - &sta_attr_dev.attr, - &sta_attr_vlan_id.attr, - &sta_attr_rx_packets.attr, - &sta_attr_tx_packets.attr, - &sta_attr_rx_bytes.attr, - &sta_attr_tx_bytes.attr, - &sta_attr_rx_duplicates.attr, - &sta_attr_rx_fragments.attr, - &sta_attr_rx_dropped.attr, - &sta_attr_tx_fragments.attr, - &sta_attr_tx_filtered.attr, - &sta_attr_txrate.attr, - &sta_attr_last_txrate.attr, - &sta_attr_tx_retry_failed.attr, - &sta_attr_tx_retry_count.attr, - &sta_attr_last_rssi.attr, - &sta_attr_last_signal.attr, - &sta_attr_last_noise.attr, - &sta_attr_channel_use.attr, - &sta_attr_wep_weak_iv_count.attr, - - &sta_attr_flags.attr, - &sta_attr_num_ps_buf_frames.attr, - &sta_attr_last_ack_rssi.attr, - &sta_attr_last_ack_ms.attr, - &sta_attr_inactive_ms.attr, - &sta_attr_last_seq_ctrl.attr, -#ifdef CONFIG_D80211_DEBUG_COUNTERS - &sta_attr_wme_rx_queue.attr, - &sta_attr_wme_tx_queue.attr, -#endif - NULL -}; - -/* keys attributtes */ - -struct key_attribute { - struct attribute attr; - ssize_t (*show)(const struct ieee80211_key *, char *buf); - ssize_t (*store)(struct ieee80211_key *, const char *buf, - size_t count); -}; - -#define KEY_SHOW(name, field, format_string) \ -static ssize_t show_key_##name(const struct ieee80211_key *key, char *buf)\ -{ \ - return sprintf(buf, format_string, key->field); \ -} -#define KEY_SHOW_D(name, field) KEY_SHOW(name, field, "%d\n") - -#define __KEY_ATTR(name) \ -static struct key_attribute key_attr_##name = \ - __ATTR(name, S_IRUSR, show_key_##name, NULL) - -#define KEY_ATTR(name, field, format) \ - KEY_SHOW_##format(name, field) \ - __KEY_ATTR(name) - -KEY_ATTR(length, keylen, D); -KEY_ATTR(sw_encrypt, force_sw_encrypt, D); -KEY_ATTR(index, keyidx, D); -KEY_ATTR(hw_index, hw_key_idx, D); -KEY_ATTR(tx_rx_count, tx_rx_count, D); - -static ssize_t show_key_algorithm(const struct ieee80211_key *key, char *buf) -{ - char *alg; - - switch (key->alg) { - case ALG_WEP: - alg = "WEP"; - break; - case ALG_TKIP: - alg = "TKIP"; - break; - case ALG_CCMP: - alg = "CCMP"; - break; - default: - return 0; - } - return sprintf(buf, "%s\n", alg); -} -__KEY_ATTR(algorithm); - -static ssize_t show_key_tx_spec(const struct ieee80211_key *key, char *buf) -{ - const u8 *tpn; - - switch (key->alg) { - case ALG_WEP: - return sprintf(buf, "\n"); - case ALG_TKIP: - return sprintf(buf, "%08x %04x\n", key->u.tkip.iv32, - key->u.tkip.iv16); - case ALG_CCMP: - tpn = key->u.ccmp.tx_pn; - return sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", tpn[0], - tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]); - default: - return 0; - } -} -__KEY_ATTR(tx_spec); - -static ssize_t show_key_rx_spec(const struct ieee80211_key *key, char *buf) -{ - int i; - const u8 *rpn; - char *p = buf; - - switch (key->alg) { - case ALG_WEP: - return sprintf(buf, "\n"); - case ALG_TKIP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) - p += sprintf(p, "%08x %04x\n", - key->u.tkip.iv32_rx[i], - key->u.tkip.iv16_rx[i]); - return (p - buf); - case ALG_CCMP: - for (i = 0; i < NUM_RX_DATA_QUEUES; i++) { - rpn = key->u.ccmp.rx_pn[i]; - p += sprintf(p, "%02x%02x%02x%02x%02x%02x\n", rpn[0], - rpn[1], rpn[2], rpn[3], rpn[4], rpn[5]); - } - return (p - buf); - default: - return 0; - } -} -__KEY_ATTR(rx_spec); - -static ssize_t show_key_replays(const struct ieee80211_key *key, char *buf) -{ - if (key->alg != ALG_CCMP) - return 0; - return sprintf(buf, "%u\n", key->u.ccmp.replays); -} -__KEY_ATTR(replays); - -static ssize_t show_key_key(const struct ieee80211_key *key, char *buf) -{ - int i; - char *p = buf; - - for (i = 0; i < key->keylen; i++) - p += sprintf(p, "%02x", key->key[i]); - p += sprintf(p, "\n"); - return (p - buf); -} -__KEY_ATTR(key); - -static struct attribute *key_ktype_attrs[] = { - &key_attr_length.attr, - &key_attr_sw_encrypt.attr, - &key_attr_index.attr, - &key_attr_hw_index.attr, - &key_attr_tx_rx_count.attr, - &key_attr_algorithm.attr, - &key_attr_tx_spec.attr, - &key_attr_rx_spec.attr, - &key_attr_replays.attr, - &key_attr_key.attr, - NULL -}; - -/* structures and functions */ - -static struct kobj_type sta_ktype = { - .release = sta_info_release, - .sysfs_ops = &sta_ktype_ops, - .default_attrs = sta_ktype_attrs, -}; - -static struct kobj_type key_ktype = { - .release = ieee80211_key_release, - .sysfs_ops = &key_ktype_ops, - .default_attrs = key_ktype_attrs, -}; - -static ssize_t sta_sysfs_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct sta_attribute *sta_attr; - struct sta_info *sta; - - sta_attr = container_of(attr, struct sta_attribute, attr); - sta = container_of(kobj, struct sta_info, kobj); - return sta_attr->show(sta, buf); -} - -static ssize_t key_sysfs_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct key_attribute *key_attr; - struct ieee80211_key *key; - - key_attr = container_of(attr, struct key_attribute, attr); - key = container_of(kobj, struct ieee80211_key, kobj); - return key_attr->show(key, buf); -} - -int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local) -{ - int res; - - res = kobject_set_name(&local->sta_kset.kobj, "sta"); - if (res) - return res; - local->sta_kset.kobj.parent = &local->class_dev.kobj; - local->sta_kset.ktype = &sta_ktype; - return kset_register(&local->sta_kset); -} - -void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local) -{ - kset_unregister(&local->sta_kset); -} - -int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata) -{ - int res; - - res = kobject_set_name(&sdata->key_kset.kobj, "keys"); - if (res) - return res; - sdata->key_kset.kobj.parent = &sdata->dev->class_dev.kobj; - sdata->key_kset.ktype = &key_ktype; - return kset_register(&sdata->key_kset); -} - -void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata) -{ - kset_unregister(&sdata->key_kset); -} - -int ieee80211_sta_sysfs_add(struct sta_info *sta) -{ - return kobject_add(&sta->kobj); -} - -void ieee80211_sta_sysfs_remove(struct sta_info *sta) -{ - kobject_del(&sta->kobj); -} - -void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset) -{ - key->kobj.kset = kset; - if (!kset) - key->kobj.ktype = &key_ktype; -} - -int ieee80211_key_sysfs_add(struct ieee80211_key *key) -{ - return kobject_add(&key->kobj); -} - -void ieee80211_key_sysfs_remove(struct ieee80211_key *key) -{ - if (key) - kobject_del(&key->kobj); -} - -int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata) -{ - return sysfs_create_link(&sdata->key_kset.kobj, - &sdata->default_key->kobj, "default"); -} - -void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata) -{ - sysfs_remove_link(&sdata->key_kset.kobj, "default"); -} diff --git a/package/d80211/src/include/compat_hacks.h b/package/d80211/src/include/compat_hacks.h deleted file mode 100644 index 49550bc924..0000000000 --- a/package/d80211/src/include/compat_hacks.h +++ /dev/null @@ -1,28 +0,0 @@ -#ifndef __COMPAT_HACKS -#define __COMPAT_HACKS - -#include <linux/types.h> -#include <linux/workqueue.h> -#include <net/sch_generic.h> - -struct delayed_work { - struct work_struct work; -}; - -#define INIT_DELAYED_WORK(_work, _func) \ - INIT_WORK(&(_work)->work, _func, &(_work)->work) - -#define INIT_WORK_NEW(_work, _func) INIT_WORK(_work, _func, _work) - -#define schedule_delayed_work(_work, interval) schedule_delayed_work(&(_work)->work, interval) -#define cancel_delayed_work(_work) cancel_delayed_work(&(_work)->work) - -static inline struct Qdisc *_qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops) -{ - return qdisc_create_dflt(dev, ops); -} - -#define qdisc_create_dflt(_dev, _ops, _handle) \ - _qdisc_create_dflt(_dev, _ops) - -#endif diff --git a/package/d80211/src/include/linux/ieee80211.h b/package/d80211/src/include/linux/ieee80211.h deleted file mode 100644 index fe9ef26846..0000000000 --- a/package/d80211/src/include/linux/ieee80211.h +++ /dev/null @@ -1,315 +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> - -#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_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 2346 -#define IEEE80211_MAX_RTS_THRESHOLD 2347 -#define IEEE80211_MAX_AID 2007 -#define IEEE80211_MAX_TIM_LEN 251 -#define IEEE80211_MAX_DATA_LEN 2304 -/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section - 6.2.1.1.2. - - The figure in section 7.1.2 suggests a body size of up to 2312 - bytes is allowed, which is a bit confusing, I suspect this - represents the 2304 bytes of real data, plus a possible 8 bytes of - WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */ - - -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; - } u; - } __attribute__ ((packed)) action; - } u; -} __attribute__ ((packed)); - - -/* Authentication algorithms */ -#define WLAN_AUTH_OPEN 0 -#define WLAN_AUTH_SHARED_KEY 1 -#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) - -/* 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, -}; - - -/* 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, -}; - - -/* 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, - /* 802.11h */ - 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, - /* 802.11i */ - WLAN_EID_RSN = 48, - WLAN_EID_WPA = 221, - WLAN_EID_GENERIC = 221, - WLAN_EID_VENDOR_SPECIFIC = 221, - WLAN_EID_QOS_PARAMETER = 222 -}; - -#endif /* IEEE80211_H */ diff --git a/package/d80211/src/include/net/d80211.h b/package/d80211/src/include/net/d80211.h deleted file mode 100644 index 65a5d36813..0000000000 --- a/package/d80211/src/include/net/d80211.h +++ /dev/null @@ -1,1002 +0,0 @@ -/* - * Low-level hardware driver -- IEEE 802.11 driver (80211.o) interface - * 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 D80211_H -#define D80211_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> - -/* Note! 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 tasklet (in - * software interrupt context). - */ - -/* - * Frame format used when passing frame between low-level hardware drivers - * and IEEE 802.11 driver the same as used in the wireless media, i.e., - * buffers start with IEEE 802.11 header and include the same octets that - * are sent over air. - * - * If hardware uses IEEE 802.3 headers (and perform 802.3 <-> 802.11 - * conversion in firmware), upper layer 802.11 code needs to be changed to - * support this. - * - * If the receive frame format is not the same as the real frame sent - * on the wireless media (e.g., due to padding etc.), upper layer 802.11 code - * could be updated to provide support for such format assuming this would - * optimize the performance, e.g., by removing need to re-allocation and - * copying of the data. - */ - -/* Interface version (used for compatibility verification) */ -#define IEEE80211_VERSION 2 - - -#define IEEE80211_CHAN_W_SCAN 0x00000001 -#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002 -#define IEEE80211_CHAN_W_IBSS 0x00000004 - -/* Channel information structure. Low-level driver is expected to fill in chan, - * freq, and val fields. Other fields will be filled in by 80211.o based on - * hostapd information and low-level driver does not need to use them. The - * limits for each channel will be provided in 'struct ieee80211_conf' when - * configuring the low-level driver with hw->config callback. */ -struct ieee80211_channel { - short chan; /* channel number (IEEE 802.11) */ - short freq; /* frequency in MHz */ - int val; /* hw specific value for the channel */ - int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */ - unsigned char power_level; - unsigned char antenna_max; -}; - -#define IEEE80211_RATE_ERP 0x00000001 -#define IEEE80211_RATE_BASIC 0x00000002 -#define IEEE80211_RATE_PREAMBLE2 0x00000004 -#define IEEE80211_RATE_SUPPORTED 0x00000010 -#define IEEE80211_RATE_OFDM 0x00000020 -#define IEEE80211_RATE_CCK 0x00000040 -#define IEEE80211_RATE_TURBO 0x00000080 -#define IEEE80211_RATE_MANDATORY 0x00000100 - -#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2) -#define IEEE80211_RATE_MODULATION(f) \ -(f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM)) - -/* Low-level driver should set PREAMBLE2, OFDM, CCK, and TURBO flags. - * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the - * configuration. */ -struct ieee80211_rate { - int rate; /* rate in 100 kbps */ - int val; /* hw specific value for the rate */ - int flags; /* IEEE80211_RATE_ flags */ - int val2; /* hw specific value for the rate when using short preamble - * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for - * 2, 5.5, and 11 Mbps) */ - signed char min_rssi_ack; - unsigned char min_rssi_ack_delta; - - /* following fields are set by 80211.o and need not be filled by the - * low-level driver */ - int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for - * optimizing channel utilization estimates */ -}; - -/* 802.11g is backwards-compatible with 802.11b, so a wlan card can - * actually be both in 11b and 11g modes at the same time. */ -enum { - MODE_IEEE80211A = 0 /* IEEE 802.11a */, - MODE_IEEE80211B = 1 /* IEEE 802.11b only */, - MODE_ATHEROS_TURBO = 2 /* Atheros Turbo mode (2x.11a at 5 GHz) */, - MODE_IEEE80211G = 3 /* IEEE 802.11g (and 802.11b compatibility) */, - MODE_ATHEROS_TURBOG = 4 /* Atheros Turbo mode (2x.11g at 2.4 GHz) */, - NUM_IEEE80211_MODES = 5 -}; - -struct ieee80211_hw_mode { - int mode; /* MODE_IEEE80211... */ - int num_channels; /* Number of channels (below) */ - struct ieee80211_channel *channels; /* Array of supported channels */ - int num_rates; /* Number of rates (below) */ - struct ieee80211_rate *rates; /* Array of supported rates */ - - struct list_head list; /* Internal, don't touch */ -}; - -struct ieee80211_tx_queue_params { - int aifs; /* 0 .. 255; -1 = use default */ - int cw_min; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */ - int cw_max; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */ - int burst_time; /* maximum burst time in 0.1 ms (i.e., 10 = 1 ms); - * 0 = disabled */ -}; - -#define NUM_TX_DATA_QUEUES 6 - -struct ieee80211_tx_queue_stats_data { - unsigned int len; /* num packets in queue */ - unsigned int limit; /* queue len (soft) limit */ - unsigned int count; /* total num frames sent */ -}; - -struct ieee80211_tx_queue_stats { - struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES]; -}; - -#ifndef IEEE80211_TX_QUEUE_NUMS -#define IEEE80211_TX_QUEUE_NUMS -/* TODO: these need to be synchronized with hostapd_ioctl.h; make a shared - * header file that can be included into low-level drivers, 80211.o, and - * hostapd */ -enum { - IEEE80211_TX_QUEUE_DATA0 = 0, - IEEE80211_TX_QUEUE_DATA1 = 1, - IEEE80211_TX_QUEUE_DATA2 = 2, - IEEE80211_TX_QUEUE_DATA3 = 3, - IEEE80211_TX_QUEUE_DATA4 = 4, - IEEE80211_TX_QUEUE_SVP = 5, - IEEE80211_TX_QUEUE_AFTER_BEACON = 6, - IEEE80211_TX_QUEUE_BEACON = 7 -}; -#endif /* IEEE80211_TX_QUEUE_NUMS */ - - -struct ieee80211_low_level_stats { - unsigned int dot11ACKFailureCount; - unsigned int dot11RTSFailureCount; - unsigned int dot11FCSErrorCount; - unsigned int dot11RTSSuccessCount; -}; - -/* 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). */ -#define HW_KEY_IDX_INVALID -1 - -struct ieee80211_tx_control { - int tx_rate; /* Transmit rate, given as the hw specific value for the - * rate (from struct ieee80211_rate) */ - int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw - * specific value for the rate (from - * struct ieee80211_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_TKIP_NEW_PHASE1_KEY (1<<9) - u32 flags; /* tx control flags defined - * above */ - u16 rts_cts_duration; /* duration field for RTS/CTS frame */ - u8 retry_limit; /* 1 = only first attempt, 2 = one retry, .. */ - u8 power_level; /* per-packet transmit power level, in dBm */ - u8 antenna_sel; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */ - s8 key_idx; /* -1 = do not encrypt, >= 0 keyidx from - * hw->set_key() */ - u8 icv_len; /* length of the ICV/MIC field in octets */ - u8 iv_len; /* length of the IV field in octets */ - u8 tkip_key[16]; /* generated phase2/phase1 key for hw TKIP */ - u8 queue; /* hardware queue to use for this frame; - * 0 = highest, hw->queues-1 = lowest */ - u8 sw_retry_attempt; /* number of times hw has tried to - * transmit frame (not incl. hw retries) */ - - int rateidx; /* internal 80211.o rateidx */ - int alt_retry_rate; /* retry rate for the last retries, given as the - * hw specific value for the rate (from - * struct ieee80211_rate). To be used to limit - * packet dropping when probing higher rates, if hw - * supports multiple retry rates. -1 = not used */ - int type; /* internal */ - int ifindex; /* internal */ -}; - -#define RX_FLAG_MMIC_ERROR 0x1 -#define RX_FLAG_DECRYPTED 0x2 - -/* Receive status. The low-level driver should provide this information - * (the subset supported by hardware) to the 802.11 code with each received - * frame. */ -struct ieee80211_rx_status { - u64 hosttime; - u64 mactime; - int freq; /* receive frequency in Mhz */ - int channel; - int phymode; - int ssi; - int signal; - int noise; - int antenna; - int rate; - int flag; -}; - -/* Transmit status. The low-level driver should provide this information - * (the subset supported by hardware) to the 802.11 code for each transmit - * frame. */ -struct ieee80211_tx_status { - /* copied ieee80211_tx_control structure */ - struct ieee80211_tx_control control; - -#define IEEE80211_TX_STATUS_TX_FILTERED (1<<0) -#define IEEE80211_TX_STATUS_ACK (1<<1) /* whether the TX frame was ACKed */ - u32 flags; /* tx staus flags defined above */ - - int ack_signal; /* measured signal strength of the ACK frame */ - int excessive_retries; - int retry_count; - - int queue_length; /* information about TX queue */ - int queue_number; -}; - - -/** - * 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. - */ -struct ieee80211_conf { - int channel; /* IEEE 802.11 channel number */ - int freq; /* MHz */ - int channel_val; /* hw specific value for the channel */ - - int phymode; /* MODE_IEEE80211A, .. */ - unsigned int regulatory_domain; - int radio_enabled; - - int beacon_int; - -#define IEEE80211_CONF_SHORT_SLOT_TIME (1<<0) /* use IEEE 802.11g Short Slot - * Time */ -#define IEEE80211_CONF_SSID_HIDDEN (1<<1) /* do not broadcast the ssid */ - u32 flags; /* configuration flags defined above */ - - u8 power_level; /* transmit power limit for current - * regulatory domain; in dBm */ - u8 antenna_max; /* maximum antenna gain */ - short tx_power_reduction; /* in 0.1 dBm */ - - int antenna_sel; /* default antenna conf: - * 0 = default/diversity, - * 1 = Ant0, - * 2 = Ant1 */ - - int antenna_def; - int antenna_mode; - - /* Following five fields are used for IEEE 802.11H */ - unsigned int radar_detect; - unsigned int spect_mgmt; - unsigned int quiet_duration; /* duration of quiet period */ - unsigned int quiet_offset; /* how far into the beacon is the quiet - * period */ - unsigned int quiet_period; - u8 radar_firpwr_threshold; - u8 radar_rssi_threshold; - u8 pulse_height_threshold; - u8 pulse_rssi_threshold; - u8 pulse_inband_threshold; -}; - -/** - * enum ieee80211_if_types - types of 802.11 network interfaces - * - * @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: not used. - */ -enum ieee80211_if_types { - IEEE80211_IF_TYPE_AP = 0x00000000, - IEEE80211_IF_TYPE_MGMT = 0x00000001, - IEEE80211_IF_TYPE_STA = 0x00000002, - IEEE80211_IF_TYPE_IBSS = 0x00000003, - IEEE80211_IF_TYPE_MNTR = 0x00000004, - IEEE80211_IF_TYPE_WDS = 0x5A580211, - IEEE80211_IF_TYPE_VLAN = 0x00080211, -}; - -/** - * struct ieee80211_if_init_conf - initial configuration of an interface - * - * @if_id: internal interface ID. This number has no particular meaning to - * drivers and the only allowed usage is to pass it to - * ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions. - * This field is not valid for monitor interfaces - * (interfaces of %IEEE80211_IF_TYPE_MNTR type). - * @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. - */ -struct ieee80211_if_init_conf { - int if_id; - int type; - 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. - * @generic_elem: used (together with @generic_elem_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. - * @generic_elem_len: length of the generic element. - * @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. - * - * 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; - u8 *generic_elem; - size_t generic_elem_len; - struct sk_buff *beacon; -}; - -typedef enum { ALG_NONE, ALG_WEP, ALG_TKIP, ALG_CCMP, ALG_NULL } -ieee80211_key_alg; - - -struct ieee80211_key_conf { - - int hw_key_idx; /* filled + used by low-level driver */ - ieee80211_key_alg alg; - int keylen; - -#define IEEE80211_KEY_FORCE_SW_ENCRYPT (1<<0) /* to be cleared by low-level - driver */ -#define IEEE80211_KEY_DEFAULT_TX_KEY (1<<1) /* This key is the new default TX - key (used only for broadcast - keys). */ -#define IEEE80211_KEY_DEFAULT_WEP_ONLY (1<<2) /* static WEP is the only - configured security policy; - this allows some low-level - drivers to determine when - hwaccel can be used */ - u32 flags; /* key configuration flags defined above */ - - s8 keyidx; /* WEP key index */ - u8 key[0]; -}; - -#define IEEE80211_SCAN_START 1 -#define IEEE80211_SCAN_END 2 - -struct ieee80211_scan_conf { - int scan_channel; /* IEEE 802.11 channel number to do passive scan - * on */ - int scan_freq; /* new freq in MHz to switch to for passive scan - */ - int scan_channel_val; /* hw specific value for the channel */ - int scan_phymode; /* MODE_IEEE80211A, .. */ - unsigned char scan_power_level; - unsigned char scan_antenna_max; - - - int running_channel; /* IEEE 802.11 channel number we operate on - * normally */ - int running_freq; /* freq in MHz we're operating on normally */ - int running_channel_val; /* hw specific value for the channel */ - int running_phymode; - unsigned char running_power_level; - unsigned char running_antenna_max; - - int scan_time; /* time a scan will take in us */ - int tries; - - struct sk_buff *skb; /* skb to transmit before changing channels, maybe - * NULL for none */ - struct ieee80211_tx_control *tx_control; - -}; - -#define IEEE80211_SEQ_COUNTER_RX 0 -#define IEEE80211_SEQ_COUNTER_TX 1 - -typedef enum { - SET_KEY, DISABLE_KEY, REMOVE_ALL_KEYS, -} set_key_cmd; - -/* This is driver-visible part of the per-hw state the stack keeps. */ -struct ieee80211_hw { - /* these are assigned by d80211, don't write */ - int index; - struct ieee80211_conf conf; - - /* Pointer to the private area that was - * allocated with this struct for you. */ - void *priv; - - /* The rest is information about your hardware */ - - struct device *dev; - - /* permanent mac address */ - u8 perm_addr[ETH_ALEN]; - - /* TODO: frame_type 802.11/802.3, sw_encryption requirements */ - - /* Some wireless LAN chipsets generate beacons in the hardware/firmware - * and others rely on host generated beacons. This option is used to - * configure the upper layer IEEE 802.11 module to generate beacons. - * The low-level driver can use ieee80211_beacon_get() to fetch the - * next beacon frame. */ -#define IEEE80211_HW_HOST_GEN_BEACON (1<<0) - - /* The device needs to be supplied with a beacon template only. */ -#define IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE (1<<1) - - /* Some devices handle decryption internally and do not - * indicate whether the frame was encrypted (unencrypted frames - * will be dropped by the hardware, unless specifically allowed - * through) */ -#define IEEE80211_HW_DEVICE_HIDES_WEP (1<<2) - - /* Whether RX frames passed to ieee80211_rx() include FCS in the end */ -#define IEEE80211_HW_RX_INCLUDES_FCS (1<<3) - - /* 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/multicast - * frames when there are power saving stations so that low-level driver - * can fetch them with ieee80211_get_buffered_bc(). */ -#define IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING (1<<4) - -#define IEEE80211_HW_WEP_INCLUDE_IV (1<<5) - - /* will data nullfunc frames get proper TX status callback */ -#define IEEE80211_HW_DATA_NULLFUNC_ACK (1<<6) - - /* Force software encryption for TKIP packets if WMM is enabled. */ -#define IEEE80211_HW_NO_TKIP_WMM_HWACCEL (1<<7) - - /* Some devices handle Michael MIC internally and do not include MIC in - * the received packets passed up. device_strips_mic must be set - * for such devices. The 'encryption' frame control bit is expected to - * be still set in the IEEE 802.11 header with this option unlike with - * the device_hides_wep configuration option. - */ -#define IEEE80211_HW_DEVICE_STRIPS_MIC (1<<8) - - /* Device is capable of performing full monitor mode even during - * normal operation. */ -#define IEEE80211_HW_MONITOR_DURING_OPER (1<<9) - - /* Set if the low-level driver supports skb fraglist (NETIF_F_FRAGLIST), - * i.e. more than one skb per frame */ -#define IEEE80211_HW_FRAGLIST (1<<10) - - /* calculate Michael MIC for an MSDU when doing hwcrypto */ -#define IEEE80211_HW_TKIP_INCLUDE_MMIC (1<<12) - /* Do TKIP phase1 key mixing in stack to support cards only do - * phase2 key mixing when doing hwcrypto */ -#define IEEE80211_HW_TKIP_REQ_PHASE1_KEY (1<<13) - /* Do TKIP phase1 and phase2 key mixing in stack and send the generated - * per-packet RC4 key with each TX frame when doing hwcrypto */ -#define IEEE80211_HW_TKIP_REQ_PHASE2_KEY (1<<14) - - u32 flags; /* hardware flags defined above */ - - /* Set to the size of a needed device specific skb headroom for TX skbs. */ - unsigned int extra_tx_headroom; - - /* This is the time in us to change channels - */ - int channel_change_time; - /* This is maximum value for rssi reported by this device */ - int maxssi; - - /* Number of available hardware TX queues for data packets. - * WMM requires at least four queues. */ - int queues; -}; - -/* Configuration block used by the low-level driver to tell the 802.11 code - * about supported hardware features and to pass function pointers to callback - * functions. */ -struct ieee80211_ops { - /* 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. */ - int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_tx_control *control); - - /* Handler for performing hardware reset. */ - int (*reset)(struct ieee80211_hw *hw); - - /* Handler that is called when any netdevice attached to the hardware - * device is set UP for the first time. This can be used, e.g., to - * enable interrupts and beacon sending. */ - int (*open)(struct ieee80211_hw *hw); - - /* Handler that is called when the last netdevice attached to the - * hardware device is set DOWN. This can be used, e.g., to disable - * interrupts and beacon sending. */ - int (*stop)(struct ieee80211_hw *hw); - - /* Handler for asking a driver if a new interface can be added (or, - * more exactly, set UP). If the handler returns zero, the interface - * is added. Driver should perform any initialization it needs prior - * to returning zero. By returning non-zero addition of the interface - * is inhibited. Unless monitor_during_oper is set, it is guaranteed - * that monitor interfaces and normal interfaces are mutually - * exclusive. The open() handler is called after add_interface() - * if this is the first device added. At least one of the open() - * open() and add_interface() callbacks has to be assigned. If - * add_interface() is NULL, one STA interface is permitted only. */ - int (*add_interface)(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf); - - /* Notify a driver that an interface is going down. The stop() handler - * is called prior to this if this is a last interface. */ - void (*remove_interface)(struct ieee80211_hw *hw, - struct ieee80211_if_init_conf *conf); - - /* Handler for configuration requests. IEEE 802.11 code calls this - * function to change hardware configuration, e.g., channel. */ - int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); - - /* Handler for configuration requests related to interfaces (e.g. - * BSSID). */ - int (*config_interface)(struct ieee80211_hw *hw, - int if_id, struct ieee80211_if_conf *conf); - - /* ieee80211 drivers do not have access to the &struct net_device - * that is (are) connected with their device. Hence (and because - * we need to combine the multicast lists and flags for multiple - * virtual interfaces), they cannot assign set_multicast_list. - * The parameters here replace dev->flags and dev->mc_count, - * dev->mc_list is replaced by calling ieee80211_get_mc_list_item. */ - void (*set_multicast_list)(struct ieee80211_hw *hw, - unsigned short flags, int mc_count); - - /* Set TIM bit handler. If the hardware/firmware takes care of beacon - * generation, IEEE 802.11 code uses this function to tell the - * low-level to set (or clear if set==0) TIM bit for the given aid. If - * host system is used to generate beacons, this handler is not used - * and low-level driver should set it to NULL. */ - int (*set_tim)(struct ieee80211_hw *hw, int aid, int set); - - /* Set encryption key. IEEE 802.11 module calls this function to set - * encryption keys. addr is ff:ff:ff:ff:ff:ff for default keys and - * station hwaddr for individual keys. aid of the station is given - * to help low-level driver in selecting which key->hw_key_idx to use - * for this key. TX control data will use the hw_key_idx selected by - * the low-level driver. */ - int (*set_key)(struct ieee80211_hw *hw, set_key_cmd cmd, - u8 *addr, struct ieee80211_key_conf *key, int aid); - - /* Set TX key index for default/broadcast keys. This is needed in cases - * where wlan card is doing full WEP/TKIP encapsulation (wep_include_iv - * is not set), in other cases, this function pointer can be set to - * NULL since the IEEE 802. 11 module takes care of selecting the key - * index for each TX frame. */ - int (*set_key_idx)(struct ieee80211_hw *hw, int idx); - - /* Enable/disable IEEE 802.1X. This item requests wlan card to pass - * unencrypted EAPOL-Key frames even when encryption is configured. - * If the wlan card does not require such a configuration, this - * function pointer can be set to NULL. */ - int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x); - - /* Set port authorization state (IEEE 802.1X PAE) to be authorized - * (authorized=1) or unauthorized (authorized=0). This function can be - * used if the wlan hardware or low-level driver implements PAE. - * 80211.o module will anyway filter frames based on authorization - * state, so this function pointer can be NULL if low-level driver does - * not require event notification about port state changes. */ - int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr, - int authorized); - - /* Ask the hardware to do a passive scan on a new channel. The hardware - * will do what ever is required to nicely leave the current channel - * including transmit any CTS packets, etc. */ - int (*passive_scan)(struct ieee80211_hw *hw, int state, - struct ieee80211_scan_conf *conf); - - /* Ask the hardware to service the scan request, no need to start - * the scan state machine in stack. */ - int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len); - - /* return low-level statistics */ - int (*get_stats)(struct ieee80211_hw *hw, - struct ieee80211_low_level_stats *stats); - - /* Enable/disable test modes; mode = IEEE80211_TEST_* */ - int (*test_mode)(struct ieee80211_hw *hw, int mode); - - /* Configuration of test parameters */ - int (*test_param)(struct ieee80211_hw *hw, int param, int value); - - /* For devices that generate their own beacons and probe response - * or association responses this updates the state of privacy_invoked - * returns 0 for success or an error number */ - int (*set_privacy_invoked)(struct ieee80211_hw *hw, - int privacy_invoked); - - /* For devices that have internal sequence counters, allow 802.11 - * code to access the current value of a counter */ - int (*get_sequence_counter)(struct ieee80211_hw *hw, - u8* addr, u8 keyidx, u8 txrx, - u32* iv32, u16* iv16); - - /* Configuration of RTS threshold (if device needs it) */ - int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); - - /* 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. */ - int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); - - /* Configuration of retry limits (if device needs it) */ - int (*set_retry_limit)(struct ieee80211_hw *hw, - u32 short_retry, u32 long_retr); - - /* Number of STAs in STA table notification (NULL = disabled) */ - void (*sta_table_notification)(struct ieee80211_hw *hw, - int num_sta); - - /* Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), - * bursting) for a hardware TX queue. - * queue = IEEE80211_TX_QUEUE_*. */ - int (*conf_tx)(struct ieee80211_hw *hw, int queue, - const struct ieee80211_tx_queue_params *params); - - /* 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. */ - int (*get_tx_stats)(struct ieee80211_hw *hw, - struct ieee80211_tx_queue_stats *stats); - - /* 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. */ - u64 (*get_tsf)(struct ieee80211_hw *hw); - - /* 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. */ - void (*reset_tsf)(struct ieee80211_hw *hw); - - /* Setup beacon data for IBSS beacons. Unlike access point (Master), - * IBSS uses a fixed beacon frame which is configured using this - * function. This handler is required only for IBSS mode. */ - int (*beacon_update)(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_tx_control *control); - - /* 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. */ - int (*tx_last_beacon)(struct ieee80211_hw *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. 802.11 code allocates a private data - * area for the low-level driver. The size of this area is given as - * priv_data_len. - */ -struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, - const struct ieee80211_ops *ops); - -/* Register hardware device to the IEEE 802.11 code and kernel. Low-level - * drivers must call this function before using any other IEEE 802.11 - * function except ieee80211_register_hwmode. */ -int ieee80211_register_hw(struct ieee80211_hw *hw); - -/* driver can use this and ieee80211_get_rx_led_name to get the - * name of the registered LEDs after ieee80211_register_hw - * was called. - * This is useful to set the default trigger on the LED class - * device that your driver should export for each LED the device - * has, that way the default behaviour will be as expected but - * the user can still change it/turn off the LED etc. - */ -#ifdef CONFIG_D80211_LEDS -extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); -extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); -#endif -static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_D80211_LEDS - return __ieee80211_get_tx_led_name(hw); -#else - return NULL; -#endif -} - -static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) -{ -#ifdef CONFIG_D80211_LEDS - return __ieee80211_get_rx_led_name(hw); -#else - return NULL; -#endif -} - -/* Register a new hardware PHYMODE capability to the stack. */ -int ieee80211_register_hwmode(struct ieee80211_hw *hw, - struct ieee80211_hw_mode *mode); - -/* Unregister a hardware device. This function instructs 802.11 code to free - * allocated resources and unregister netdevices from the kernel. */ -void ieee80211_unregister_hw(struct ieee80211_hw *hw); - -/* Free everything that was allocated including private data of a driver. */ -void ieee80211_free_hw(struct ieee80211_hw *hw); - -/* Receive frame callback function. The low-level driver uses this function to - * send received frames to the IEEE 802.11 code. Receive buffer (skb) must - * start with IEEE 802.11 header. */ -void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, - struct ieee80211_rx_status *status); -void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct ieee80211_rx_status *status); - -/* Transmit status callback function. The low-level driver must call this - * function to report transmit status for all the TX frames that had - * req_tx_status set in the transmit control fields. In addition, this should - * be called at least for all unicast frames to provide information for TX rate - * control algorithm. In order to maintain all statistics, this function is - * recommended to be called after each frame, including multicast/broadcast, is - * sent. */ -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(). - * @if_id: interface ID 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, - int if_id, - struct ieee80211_tx_control *control); - -/** - * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @if_id: interface ID 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, int if_id, - struct ieee80211_tx_control *control); - -/* Low level drivers that have their own MLME and MAC indicate - * the aid for an associating station with this call */ -int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw, - u8 *peer_address, u16 aid); - - -/* Given an sk_buff 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. - */ -int ieee80211_get_hdrlen_from_skb(struct sk_buff *skb); - -/* Like ieee80211_get_hdrlen_from_skb() but takes a FC in CPU order. */ -int ieee80211_get_hdrlen(u16 fc); - -/* Function for net interface operation. IEEE 802.11 may use multiple kernel - * netdevices for each hardware device. The low-level driver does not "see" - * these interfaces, so it should use this function to perform netif - * operations on all interface. */ -/* This function is deprecated. */ -typedef enum { - NETIF_ATTACH, NETIF_DETACH, NETIF_START, NETIF_STOP, NETIF_WAKE, - NETIF_IS_STOPPED, NETIF_UPDATE_TX_START -} Netif_Oper; -int ieee80211_netif_oper(struct ieee80211_hw *hw, Netif_Oper op); - -/** - * 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_get_mc_list_item - iteration over items in multicast list - * @hw: pointer as obtained from ieee80211_alloc_hw(). - * @prev: value returned by previous call to ieee80211_get_mc_list_item() or - * NULL to start a new iteration. - * @ptr: pointer to buffer of void * type for internal usage of - * ieee80211_get_mc_list_item(). - * - * Iterates over items in multicast list of given device. To get the first - * item, pass NULL in @prev and in *@ptr. In subsequent calls, pass the - * value returned by previous call in @prev. Don't alter *@ptr during - * iteration. When there are no more items, NULL is returned. - */ -struct dev_mc_list * -ieee80211_get_mc_list_item(struct ieee80211_hw *hw, - struct dev_mc_list *prev, - void **ptr); - -/* called by driver to notify scan status completed */ -void ieee80211_scan_completed(struct ieee80211_hw *hw); - -/* Function to indicate Radar Detection. The low level driver must call this - * function to indicate the presence of radar in the current channel. - * Additionally the radar type also could be sent */ -int ieee80211_radar_status(struct ieee80211_hw *hw, int channel, - int radar, int radar_type); - -/* Test modes */ -enum { - IEEE80211_TEST_DISABLE = 0 /* terminate testing */, - IEEE80211_TEST_UNMASK_CHANNELS = 1 /* allow all channels to be used */, - IEEE80211_TEST_CONTINUOUS_TX = 2, -}; - -/* Test parameters */ -enum { - /* TX power in hardware specific raw value */ - IEEE80211_TEST_PARAM_TX_POWER_RAW = 0, - /* TX rate in hardware specific raw value */ - IEEE80211_TEST_PARAM_TX_RATE_RAW = 1, - /* Continuous TX pattern (32-bit) */ - IEEE80211_TEST_PARAM_TX_PATTERN = 2, - /* TX power in 0.1 dBm, 100 = 10 dBm */ - IEEE80211_TEST_PARAM_TX_POWER = 3, - /* TX rate in 100 kbps, 540 = 54 Mbps */ - IEEE80211_TEST_PARAM_TX_RATE = 4, - IEEE80211_TEST_PARAM_TX_ANT_SEL_RAW = 5, -}; - -/* return a pointer to the source address (SA) */ -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; -} - -/* return a pointer to the destination address (DA) */ -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; -} - -static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr) -{ - return (le16_to_cpu(hdr->frame_control) & - IEEE80211_FCTL_MOREFRAGS) != 0; -} - -#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x" -#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \ - ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5] - -#endif /* D80211_H */ diff --git a/package/d80211/src/michael.c b/package/d80211/src/michael.c deleted file mode 100644 index 0f844f7895..0000000000 --- a/package/d80211/src/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/d80211/src/michael.h b/package/d80211/src/michael.h deleted file mode 100644 index 2e6aebabee..0000000000 --- a/package/d80211/src/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/d80211/src/rc80211_simple.c b/package/d80211/src/rc80211_simple.c deleted file mode 100644 index 3634d00bc1..0000000000 --- a/package/d80211/src/rc80211_simple.c +++ /dev/null @@ -1,398 +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/module.h> -#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 <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.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_EMERG_DEC 2 -#define RATE_CONTROL_INTERVAL (HZ / 20) -#define RATE_CONTROL_MIN_TX 10 - -MODULE_ALIAS("rc80211_default"); - -static void rate_control_rate_inc(struct ieee80211_local *local, - struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - int i = sta->txrate; - 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; - } - - maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1; - - if (i > local->num_curr_rates) - i = local->num_curr_rates - 2; - - while (i + 1 < local->num_curr_rates) { - i++; - if (sta->supp_rates & BIT(i) && - local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED && - (maxrate < 0 || i <= maxrate)) { - sta->txrate = i; - break; - } - } -} - - -static void rate_control_rate_dec(struct ieee80211_local *local, - struct sta_info *sta) -{ - struct ieee80211_sub_if_data *sdata; - int i = sta->txrate; - - 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; - } - - if (i > local->num_curr_rates) - i = local->num_curr_rates; - - while (i > 0) { - i--; - if (sta->supp_rates & BIT(i) && - local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED) { - sta->txrate = i; - break; - } - } -} - - -static struct ieee80211_rate * -rate_control_lowest_rate(struct ieee80211_local *local) -{ - int i; - - for (i = 0; i < local->num_curr_rates; i++) { - struct ieee80211_rate *rate = &local->curr_rates[i]; - - if (rate->flags & IEEE80211_RATE_SUPPORTED - ) - return rate; - } - - printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates " - "found\n"); - return &local->curr_rates[0]; -} - - -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; -}; - - -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 = 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) { - sta->antenna_sel = sta->antenna_sel == 1 ? 2 : 1; - if (local->sta_antenna_sel == STA_ANTENNA_SEL_SW_CTRL_DEBUG) { - printk(KERN_DEBUG "%s: " MAC_FMT " TX antenna --> %d " - "(@%lu)\n", - dev->name, MAC_ARG(hdr->addr1), - sta->antenna_sel, jiffies); - } - 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 - - if (per_failed > local->rate_ctrl_num_down) { - rate_control_rate_dec(local, sta); - } else if (per_failed < local->rate_ctrl_num_up) { - rate_control_rate_inc(local, sta); - } - srctrl->tx_avg_rate_sum += local->curr_rates[sta->txrate].rate; - 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_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: " - "%d (%d/%d)\n", - dev->name, MAC_ARG(sta->addr), - srctrl->tx_avg_rate_sum / - srctrl->tx_avg_rate_num, - srctrl->tx_avg_rate_sum, - srctrl->tx_avg_rate_num); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - srctrl->tx_avg_rate_sum = 0; - srctrl->tx_avg_rate_num = 0; - } - } - - sta_info_put(sta); -} - - -static struct ieee80211_rate * -rate_control_simple_get_rate(void *priv, struct net_device *dev, - struct sk_buff *skb, - struct rate_control_extra *extra) -{ - struct ieee80211_local *local = dev->ieee80211_ptr; - struct ieee80211_sub_if_data *sdata; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - struct sta_info *sta; - int rateidx, nonerp_idx; - u16 fc; - - memset(extra, 0, sizeof(*extra)); - - fc = le16_to_cpu(hdr->frame_control); - if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || - (hdr->addr1[0] & 0x01)) { - /* Send management frames and broadcast/multicast data using - * lowest rate. */ - /* TODO: this could probably be improved.. */ - return rate_control_lowest_rate(local); - } - - sta = sta_info_get(local, hdr->addr1); - - if (!sta) - return rate_control_lowest_rate(local); - - sdata = IEEE80211_DEV_TO_SUB_IF(dev); - if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) - sta->txrate = sdata->bss->force_unicast_rateidx; - - rateidx = sta->txrate; - - if (rateidx >= local->num_curr_rates) - rateidx = local->num_curr_rates - 1; - - sta->last_txrate = rateidx; - nonerp_idx = rateidx; - while (nonerp_idx > 0 && - ((local->curr_rates[nonerp_idx].flags & IEEE80211_RATE_ERP) || - !(local->curr_rates[nonerp_idx].flags & - IEEE80211_RATE_SUPPORTED) || - !(sta->supp_rates & BIT(nonerp_idx)))) - nonerp_idx--; - extra->nonerp_idx = nonerp_idx; - extra->nonerp = &local->curr_rates[extra->nonerp_idx]; - - sta_info_put(sta); - - return &local->curr_rates[rateidx]; -} - - -static void rate_control_simple_rate_init(void *priv, void *priv_sta, - struct ieee80211_local *local, - struct sta_info *sta) -{ - int i; - sta->txrate = 0; - /* TODO: what is a good starting rate for STA? About middle? Maybe not - * the lowest or the highest rate.. Could consider using RSSI from - * previous packets? Need to have IEEE 802.1X auth succeed immediately - * after assoc.. */ - for (i = 0; i < local->num_curr_rates; i++) { - if ((sta->supp_rates & BIT(i)) && - (local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED)) - sta->txrate = i; - } -} - - -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); -} - -static ssize_t show_sta_tx_avg_rate_sum(const struct sta_info *sta, char *buf) -{ - struct sta_rate_control *srctrl = sta->rate_ctrl_priv; - - return sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum); -} - -static ssize_t show_sta_tx_avg_rate_num(const struct sta_info *sta, char *buf) -{ - struct sta_rate_control *srctrl = sta->rate_ctrl_priv; - - return sprintf(buf, "%d\n", srctrl->tx_avg_rate_num); -} - -static struct sta_attribute sta_attr_tx_avg_rate_sum = - __ATTR(tx_avg_rate_sum, S_IRUSR, show_sta_tx_avg_rate_sum, NULL); -static struct sta_attribute sta_attr_tx_avg_rate_num = - __ATTR(tx_avg_rate_num, S_IRUSR, show_sta_tx_avg_rate_num, NULL); - -static struct attribute *rate_control_simple_sta_attrs[] = { - &sta_attr_tx_avg_rate_sum.attr, - &sta_attr_tx_avg_rate_num.attr, - NULL, -}; - -static struct attribute_group rate_control_simple_sta_group = { - .name = "rate_control_simple", - .attrs = rate_control_simple_sta_attrs, -}; - -static int rate_control_simple_add_sta_attrs(void *priv, void *priv_sta, - struct kobject *kobj) -{ - return sysfs_create_group(kobj, &rate_control_simple_sta_group); -} - -static void rate_control_simple_remove_sta_attrs(void *priv, void *priv_sta, - struct kobject *kobj) -{ - sysfs_remove_group(kobj, &rate_control_simple_sta_group); -} - -static struct rate_control_ops rate_control_simple = { - .module = THIS_MODULE, - .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, - .add_sta_attrs = rate_control_simple_add_sta_attrs, - .remove_sta_attrs = rate_control_simple_remove_sta_attrs, -}; - - -static int __init rate_control_simple_init(void) -{ - return ieee80211_rate_control_register(&rate_control_simple); -} - - -static void __exit rate_control_simple_exit(void) -{ - ieee80211_rate_control_unregister(&rate_control_simple); -} - - -module_init(rate_control_simple_init); -module_exit(rate_control_simple_exit); - -MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211"); -MODULE_LICENSE("GPL"); diff --git a/package/d80211/src/sta_info.c b/package/d80211/src/sta_info.c deleted file mode 100644 index e8f2bab3ff..0000000000 --- a/package/d80211/src/sta_info.c +++ /dev/null @@ -1,461 +0,0 @@ -/* - * Copyright 2002-2005, 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/module.h> -#include <linux/init.h> -#include <linux/kobject.h> -#include <linux/netdevice.h> -#include <linux/types.h> -#include <linux/slab.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> - -#include <net/d80211.h> -#include "ieee80211_i.h" -#include "ieee80211_rate.h" -#include "sta_info.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 void 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; - if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) { - local->sta_hash[STA_HASH(sta->addr)] = s->hnext; - return; - } - - while (s->hnext && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0) - s = s->hnext; - if (s->hnext) - s->hnext = s->hnext->hnext; - else - printk(KERN_ERR "%s: could not remove STA " MAC_FMT " from " - "hash table\n", local->mdev->name, MAC_ARG(sta->addr)); -} - -static inline struct sta_info *__sta_info_get(struct sta_info *sta) -{ - return kobject_get(&sta->kobj) ? sta : NULL; -} - -struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr) -{ - struct sta_info *sta; - - spin_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; - } - spin_unlock_bh(&local->sta_lock); - - return sta; -} -EXPORT_SYMBOL(sta_info_get); - -int sta_info_min_txrate_get(struct ieee80211_local *local) -{ - struct sta_info *sta; - int min_txrate = 9999999; - int i; - - spin_lock_bh(&local->sta_lock); - for (i = 0; i < STA_HASH_SIZE; i++) { - sta = local->sta_hash[i]; - while (sta) { - if (sta->txrate < min_txrate) - min_txrate = sta->txrate; - sta = sta->hnext; - } - } - spin_unlock_bh(&local->sta_lock); - if (min_txrate == 9999999) - min_txrate = 0; - - return min_txrate; -} - - -void sta_info_put(struct sta_info *sta) -{ - kobject_put(&sta->kobj); -} -EXPORT_SYMBOL(sta_info_put); - -void sta_info_release(struct kobject *kobj) -{ - struct sta_info *sta = container_of(kobj, struct sta_info, kobj); - struct ieee80211_local *local = sta->local; - struct sk_buff *skb; - - /* 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); - } - rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv); - rate_control_put(sta->rate_ctrl); - kfree(sta); -} - - -struct sta_info * sta_info_add(struct ieee80211_local *local, - struct net_device *dev, u8 *addr, gfp_t gfp) -{ - struct sta_info *sta; - - sta = kzalloc(sizeof(*sta), gfp); - if (!sta) - return NULL; - - if (kobject_set_name(&sta->kobj, MAC_FMT, MAC_ARG(addr))) { - kfree(sta); - return NULL; - } - sta->kobj.kset = &local->sta_kset; - kobject_init(&sta->kobj); - - 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); - kobject_put(&sta->kobj); - kfree(sta); - return NULL; - } - - memcpy(sta->addr, addr, ETH_ALEN); - sta->local = local; - sta->dev = dev; - 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() */ - spin_lock_bh(&local->sta_lock); - list_add(&sta->list, &local->sta_list); - local->num_sta++; - sta_info_hash_add(local, sta); - spin_unlock_bh(&local->sta_lock); - if (local->ops->sta_table_notification) - local->ops->sta_table_notification(local_to_hw(local), - local->num_sta); - sta->key_idx_compression = HW_KEY_IDX_INVALID; - -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n", - local->mdev->name, MAC_ARG(addr)); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - - if (!in_interrupt()) { - sta->sysfs_registered = 1; - ieee80211_sta_sysfs_add(sta); - rate_control_add_sta_attrs(sta, &sta->kobj); - } else { - /* procfs entry adding might sleep, so schedule process context - * task for adding proc entry for STAs that do not yet have - * one. */ - schedule_work(&local->sta_proc_add); - } - - return sta; -} - -static void finish_sta_info_free(struct ieee80211_local *local, - struct sta_info *sta) -{ -#ifdef CONFIG_D80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n", - local->mdev->name, MAC_ARG(sta->addr)); -#endif /* CONFIG_D80211_VERBOSE_DEBUG */ - - if (sta->key) { - ieee80211_key_sysfs_remove(sta->key); - ieee80211_key_free(sta->key); - sta->key = NULL; - } - - rate_control_remove_sta_attrs(sta, &sta->kobj); - ieee80211_sta_sysfs_remove(sta); - - sta_info_put(sta); -} - -void sta_info_free(struct sta_info *sta, int locked) -{ - struct sk_buff *skb; - struct ieee80211_local *local = sta->local; - struct ieee80211_sub_if_data *sdata; - - if (!locked) - spin_lock_bh(&local->sta_lock); - sta_info_hash_del(local, sta); - 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); - if (!locked) - spin_unlock_bh(&local->sta_lock); - if (local->ops->sta_table_notification) - local->ops->sta_table_notification(local_to_hw(local), - local->num_sta); - - 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); - } - - if (sta->key) { - if (local->ops->set_key) { - struct ieee80211_key_conf *key; - key = ieee80211_key_data2conf(local, sta->key); - if (key) { - local->ops->set_key(local_to_hw(local), - DISABLE_KEY, - sta->addr, key, sta->aid); - kfree(key); - } - } - } else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) { - struct ieee80211_key_conf conf; - memset(&conf, 0, sizeof(conf)); - conf.hw_key_idx = sta->key_idx_compression; - conf.alg = ALG_NULL; - conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT; - local->ops->set_key(local_to_hw(local), DISABLE_KEY, - sta->addr, &conf, sta->aid); - sta->key_idx_compression = HW_KEY_IDX_INVALID; - } - - if (in_atomic()) { - list_add(&sta->list, &local->deleted_sta_list); - schedule_work(&local->sta_proc_add); - } else - finish_sta_info_free(local, 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; - - 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 " - MAC_FMT ")\n", MAC_ARG(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; - - spin_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); - } - spin_unlock_bh(&local->sta_lock); - - local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL; - add_timer(&local->sta_cleanup); -} - - -static void sta_info_proc_add_task(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, sta_proc_add); - struct sta_info *sta, *tmp; - - while (1) { - spin_lock_bh(&local->sta_lock); - if (!list_empty(&local->deleted_sta_list)) { - sta = list_entry(local->deleted_sta_list.next, - struct sta_info, list); - list_del(local->deleted_sta_list.next); - } else - sta = NULL; - spin_unlock_bh(&local->sta_lock); - if (!sta) - break; - finish_sta_info_free(local, sta); - } - - while (1) { - sta = NULL; - spin_lock_bh(&local->sta_lock); - list_for_each_entry(tmp, &local->sta_list, list) { - if (!tmp->sysfs_registered) { - sta = tmp; - __sta_info_get(sta); - break; - } - } - spin_unlock_bh(&local->sta_lock); - - if (!sta) - break; - - sta->sysfs_registered = 1; - ieee80211_sta_sysfs_add(sta); - rate_control_add_sta_attrs(sta, &sta->kobj); - sta_info_put(sta); - } -} - - -void sta_info_init(struct ieee80211_local *local) -{ - spin_lock_init(&local->sta_lock); - INIT_LIST_HEAD(&local->sta_list); - INIT_LIST_HEAD(&local->deleted_sta_list); - - init_timer(&local->sta_cleanup); - local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL; - local->sta_cleanup.data = (unsigned long) local; - local->sta_cleanup.function = sta_info_cleanup; - - INIT_WORK(&local->sta_proc_add, sta_info_proc_add_task); -} - -int sta_info_start(struct ieee80211_local *local) -{ - int res; - - res = ieee80211_sta_kset_sysfs_register(local); - if (res) - return res; - add_timer(&local->sta_cleanup); - return 0; -} - -void sta_info_stop(struct ieee80211_local *local) -{ - struct sta_info *sta, *tmp; - - del_timer(&local->sta_cleanup); - - list_for_each_entry_safe(sta, tmp, &local->sta_list, list) { - /* sta_info_free must be called with 0 as the last - * parameter to ensure all sysfs sta entries are - * unregistered. We don't need locking at this - * point. */ - sta_info_free(sta, 0); - } - ieee80211_sta_kset_sysfs_unregister(local); -} - - -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; - - spin_lock_bh(&local->sta_lock); - list_for_each_entry_safe(sta, tmp, &local->sta_list, list) - if (!dev || dev == sta->dev) - sta_info_free(sta, 1); - spin_unlock_bh(&local->sta_lock); -} diff --git a/package/d80211/src/sta_info.h b/package/d80211/src/sta_info.h deleted file mode 100644 index ad000a2c3f..0000000000 --- a/package/d80211/src/sta_info.h +++ /dev/null @@ -1,149 +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 "ieee80211_key.h" - -/* Stations flags (struct sta_info::flags) */ -#define WLAN_STA_AUTH BIT(0) -#define WLAN_STA_ASSOC BIT(1) -#define WLAN_STA_PS BIT(2) -#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */ -#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */ -#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is - * controlling whether STA is authorized to - * send and receive non-IEEE 802.1X frames - */ -#define WLAN_STA_SHORT_PREAMBLE BIT(7) -#define WLAN_STA_WME BIT(9) -#define WLAN_STA_WDS BIT(27) - - -struct sta_info { - struct list_head list; - struct kobject kobj; - 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; - u32 supp_rates; /* bitmap of supported rates in local->curr_rates */ - int txrate; /* index in local->curr_rates */ - int last_txrate; /* last rate used to send a frame to this STA */ - int last_nonerp_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; - - int antenna_sel; - - - int key_idx_compression; /* key table index for compression and TX - * filtering; used only if sta->key is not - * set */ - - unsigned int sysfs_registered:1; - unsigned int assoc_ap:1; /* whether this is an AP that we are - * associated with as a client */ - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - u32 wpa_trigger; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - -#ifdef CONFIG_D80211_DEBUG_COUNTERS - unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; - unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; -#endif /* CONFIG_D80211_DEBUG_COUNTERS */ - - int vlan_id; - - u16 listen_interval; -}; - - -/* 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) - -struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr); -int sta_info_min_txrate_get(struct ieee80211_local *local); -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_free(struct sta_info *sta, int locked); -void sta_info_release(struct kobject *kobj); -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/d80211/src/tkip.c b/package/d80211/src/tkip.c deleted file mode 100644 index 11966e0e3c..0000000000 --- a/package/d80211/src/tkip.c +++ /dev/null @@ -1,341 +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/d80211.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->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->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->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->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 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->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 - printk(KERN_DEBUG "TKIP replay detected for RX frame from " - MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n", - MAC_ARG(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->key[ALG_TKIP_TEMP_ENCR_KEY], - iv32, key->u.tkip.p1k_rx[queue]); -#ifdef CONFIG_TKIP_DEBUG - { - int i; - printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT - " TK=", MAC_ARG(ta)); - for (i = 0; i < 16; i++) - printk("%02x ", - key->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->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) { - /* FIX: these should be updated only after Michael MIC has been - * verified */ - /* Record previously received IV */ - key->u.tkip.iv32_rx[queue] = iv32; - key->u.tkip.iv16_rx[queue] = iv16; - } - - return res; -} - - diff --git a/package/d80211/src/tkip.h b/package/d80211/src/tkip.h deleted file mode 100644 index a0d181a180..0000000000 --- a/package/d80211/src/tkip.h +++ /dev/null @@ -1,36 +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); - -#endif /* TKIP_H */ diff --git a/package/d80211/src/wep.c b/package/d80211/src/wep.c deleted file mode 100644 index 6a96ade59e..0000000000 --- a/package/d80211/src/wep.c +++ /dev/null @@ -1,328 +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 <asm/scatterlist.h> - -#include <net/d80211.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; -} - - -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->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->keyidx << 6; -} - - -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; -} - - -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.page = virt_to_page(data); - sg.offset = offset_in_page(data); - sg.length = 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->alg != ALG_WEP) - return -1; - - klen = 3 + key->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->key, key->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.page = virt_to_page(data); - sg.offset = offset_in_page(data); - sg.length = 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->keyidx || key->alg != ALG_WEP) - return -1; - - klen = 3 + key->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->key, key->keylen); - - if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen, - skb->data + hdrlen + WEP_IV_LEN, - len)) { - 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; -} - - -int ieee80211_wep_get_keyidx(struct sk_buff *skb) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; - u16 fc; - int hdrlen; - - 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; - - return skb->data[hdrlen + 3] >> 6; -} - - -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->keylen)) - return ivpos; - - return NULL; -} diff --git a/package/d80211/src/wep.h b/package/d80211/src/wep.h deleted file mode 100644 index bfe29e8e10..0000000000 --- a/package/d80211/src/wep.h +++ /dev/null @@ -1,40 +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_get_iv(struct ieee80211_local *local, - struct ieee80211_key *key, u8 *iv); -u8 * ieee80211_wep_add_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key); -void ieee80211_wep_remove_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key); -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); -int ieee80211_wep_get_keyidx(struct sk_buff *skb); -u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key); - -#endif /* WEP_H */ diff --git a/package/d80211/src/wme.c b/package/d80211/src/wme.c deleted file mode 100644 index 76e2c4b0c3..0000000000 --- a/package/d80211/src/wme.c +++ /dev/null @@ -1,679 +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/d80211.h> -#include "ieee80211_i.h" -#include "wme.h" - -#define CHILD_QDISC_OPS pfifo_qdisc_ops - -static inline int WLAN_FC_IS_QOS_DATA(u16 fc) -{ - return (fc & 0x8C) == 0x88; -} - - -ieee80211_txrx_result -ieee80211_rx_h_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; - } 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 */ - } - } -#ifdef CONFIG_D80211_DEBUG_COUNTERS - I802_DEBUG_INC(rx->local->wme_rx_queue[tid]); - if (rx->sta) { - I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]); - } -#endif /* CONFIG_D80211_DEBUG_COUNTERS */ - - 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; - - return TXRX_CONTINUE; -} - - -ieee80211_txrx_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 TXRX_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 TXRX_CONTINUE; -} - - -/* maximum number of hardware queues we support. */ -#define TC_80211_MAX_QUEUES 8 - -struct ieee80211_sched_data -{ - struct tcf_proto *filter_list; - struct Qdisc *queues[TC_80211_MAX_QUEUES]; - struct sk_buff_head requeued[TC_80211_MAX_QUEUES]; -}; - - -/* 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; - -#ifdef CONFIG_NET_SCHED - 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; - } -#endif /* CONFIG_NET_SCHED */ - - /* 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) + 8 /* LLC + proto */; - if (skb->protocol != __constant_htons(ETH_P_IP) || - skb->len < offset + sizeof(*ip)) - return 0; - - ip = (struct iphdr *) (skb->data + offset); - - 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 = qd->dev->ieee80211_ptr; - 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); - int qos; - const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 }; - - /* 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 (unlikely(pkt_data->mgmt_iface)) { - /* Data frames from hostapd (mainly, EAPOL) use AC_VO - * and they will include QoS control fields if - * the target STA is using WME. */ - skb->priority = 7; - return ieee802_1d_to_ac[skb->priority]; - } - - /* 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); - - /* incase 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 = 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; - - if (pkt_data->requeue) { - skb_queue_tail(&q->requeued[pkt_data->queue], skb); - 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 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK; - if (local->wifi_wme_noack_test) - qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK << - QOS_CONTROL_ACK_POLICY_SHIFT; - /* qos header is 2 bytes, second reserved */ - *p = qos_hdr; - p++; - *p = 0; - } - - 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 { - 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 = 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])) - continue; - - /* there is space - try and get a frame */ - skb = skb_dequeue(&q->requeued[queue]); - if (skb) - 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 = 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 = qd->dev->ieee80211_ptr; - struct ieee80211_hw *hw = &local->hw; - struct tcf_proto *tp; - int queue; - - while ((tp = q->filter_list) != NULL) { - q->filter_list = tp->next; - tp->ops->destroy(tp); - } - - 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 = dev->ieee80211_ptr; - int queues = local->hw.queues; - int err = 0, i; - - /* 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; - - /* 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, &CHILD_QDISC_OPS, - qd->handle); - if (q->queues[i] == 0) { - q->queues[i] = &noop_qdisc; - printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i); - } - } - - 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 = 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 = 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 = 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) -{ - /* printk(KERN_DEBUG "entering %s\n", __func__); */ -} - - -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 = qd->dev->ieee80211_ptr; - struct ieee80211_hw *hw = &local->hw; - /* printk(KERN_DEBUG "entering %s\n", __func__); */ - - 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 = qd->dev->ieee80211_ptr; - struct ieee80211_hw *hw = &local->hw; - /* printk(KERN_DEBUG "entering %s\n", __func__); */ - - 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 = qd->dev->ieee80211_ptr; - struct ieee80211_hw *hw = &local->hw; - /* printk(KERN_DEBUG "entering %s\n", __func__); */ - - 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 = qd->dev->ieee80211_ptr; - struct ieee80211_hw *hw = &local->hw; - int queue; - /* printk(KERN_DEBUG "entering %s\n", __func__); */ - - 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); - /* printk("entering %s\n", __func__); */ - - 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_wme_register(void) -{ - int err = 0; - -#ifdef CONFIG_NET_SCHED - err = register_qdisc(&wme_qdisc_ops); -#endif - return err; -} - - -void ieee80211_wme_unregister(void) -{ -#ifdef CONFIG_NET_SCHED - unregister_qdisc(&wme_qdisc_ops); -#endif -} diff --git a/package/d80211/src/wme.h b/package/d80211/src/wme.h deleted file mode 100644 index 90add6e827..0000000000 --- a/package/d80211/src/wme.h +++ /dev/null @@ -1,38 +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 - -ieee80211_txrx_result -ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx); - -ieee80211_txrx_result -ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx); - -void ieee80211_install_qdisc(struct net_device *dev); - -int ieee80211_wme_register(void); -void ieee80211_wme_unregister(void); - -#endif diff --git a/package/d80211/src/wpa.c b/package/d80211/src/wpa.c deleted file mode 100644 index 7b64abf868..0000000000 --- a/package/d80211/src/wpa.c +++ /dev/null @@ -1,846 +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/iw_handler.h> - -#include <net/d80211.h> -#include "ieee80211_common.h" -#include "ieee80211_i.h" -#include "michael.h" -#include "tkip.h" -#include "aes_ccm.h" -#include "wpa.h" -#ifdef CONFIG_HOSTAPD_WPA_TESTING -#include "hostapd_ioctl.h" -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - -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_txrx_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->alg != ALG_TKIP || skb->len < 24 || - !WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - - if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)) - return TXRX_DROP; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) || - (!tx->u.tx.unicast && - tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC)) { - wpa_test = 1; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if (!tx->key->force_sw_encrypt && - !tx->fragmented && - !(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) && - !wpa_test) { - /* hwaccel - with no need for preallocated room for Michael MIC - */ - return TXRX_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 TXRX_DROP; - } - } - -#if 0 - authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */ -#else - authenticator = 1; -#endif - key = &tx->key->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); - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) { - printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC " - "for STA " MAC_FMT "\n", - tx->dev->name, MAC_ARG(tx->sta->addr)); - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC; - tx->wpa_test = 1; - mic[0]++; - } else if (!tx->u.tx.unicast && - tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) { - printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC " - "for Group Key\n", tx->dev->name); - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC; - tx->wpa_test = 1; - mic[0]++; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - return TXRX_CONTINUE; -} - - -ieee80211_txrx_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; - - fc = rx->fc; - - /* If device handles decryption totally, skip this check */ - if ((rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) || - (rx->local->hw.flags & IEEE80211_HW_DEVICE_STRIPS_MIC)) - return TXRX_CONTINUE; - - if (!rx->key || rx->key->alg != ALG_TKIP || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) { - wpa_test = 1; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - !rx->key->force_sw_encrypt) { - if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) { - if (skb->len < MICHAEL_MIC_LEN) - return TXRX_DROP; - } - /* Need to verify Michael MIC sometimes in software even when - * hwaccel is used. Atheros ar5212: fragmented frames and QoS - * frames. */ - if (!rx->fragmented && !wpa_test) - goto remove_mic; - } - - if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len) - || data_len < MICHAEL_MIC_LEN) - return TXRX_DROP; - - data_len -= MICHAEL_MIC_LEN; - -#if 0 - authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */ -#else - authenticator = 1; -#endif - key = &rx->key->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); -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) { - printk(KERN_INFO "%s: WPA testing - corrupting RX Michael MIC " - "for STA " MAC_FMT "\n", - rx->dev->name, MAC_ARG(rx->sta->addr)); - rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_MIC; - mic[0]++; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) { -#ifdef CONFIG_HOSTAPD_WPA_TESTING - int i; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if (!rx->u.rx.ra_match) - return TXRX_DROP; - - printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from " - MAC_FMT "\n", rx->dev->name, MAC_ARG(sa)); -#ifdef CONFIG_HOSTAPD_WPA_TESTING - printk(KERN_DEBUG " received"); - for (i = 0; i < MICHAEL_MIC_LEN; i++) - printk(" %02x", data[data_len + i]); - printk(" expected"); - for (i = 0; i < MICHAEL_MIC_LEN; i++) - printk(" %02x", mic[i]); - printk("\n"); - printk(KERN_DEBUG " SA=" MAC_FMT " DA=" MAC_FMT " key", - MAC_ARG(sa), MAC_ARG(da)); - for (i = 0; i < 8; i++) - printk(" %02x", key[i]); - printk(" (%d)\n", authenticator); -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - do { - struct ieee80211_hdr *hdr; - union iwreq_data wrqu; - char *buf = kmalloc(128, GFP_ATOMIC); - if (!buf) - break; - - /* TODO: needed parameters: count, key type, TSC */ - hdr = (struct ieee80211_hdr *) skb->data; - sprintf(buf, "MLME-MICHAELMICFAILURE.indication(" - "keyid=%d %scast addr=" MAC_FMT ")", - rx->key->keyidx, - hdr->addr1[0] & 0x01 ? "broad" : "uni", - MAC_ARG(hdr->addr2)); - memset(&wrqu, 0, sizeof(wrqu)); - wrqu.data.length = strlen(buf); - wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf); - kfree(buf); - } while (0); - - if (!rx->local->apdev) - return TXRX_DROP; - - ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status, - ieee80211_msg_michael_mic_failure); - - return TXRX_QUEUED; - } - - remove_mic: - /* remove Michael MIC from payload */ - skb_trim(skb, skb->len - MICHAEL_MIC_LEN); - - return TXRX_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; - - tailneed = !tx->key->force_sw_encrypt ? 0 : 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; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_REPLAY) - goto skip_iv_inc; -iv_inc: -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - /* Increase IV for the frame */ - key->u.tkip.iv16++; - if (key->u.tkip.iv16 == 0) - key->u.tkip.iv32++; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_SKIP_SEQ) { - test = 0; - goto iv_inc; - } -skip_iv_inc: -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if (!tx->key->force_sw_encrypt -#ifdef CONFIG_HOSTAPD_WPA_TESTING - && !tx->wpa_test -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - ) { - u32 flags = tx->local->hw.flags; - 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); - - if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY) - ieee80211_tkip_gen_rc4key(key, hdr->addr2, - tx->u.tx.control->tkip_key); - else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) { - if (key->u.tkip.iv16 == 0 || - !key->u.tkip.tx_initialized) { - ieee80211_tkip_gen_phase1key(key, hdr->addr2, - (u16 *)tx->u.tx.control->tkip_key); - key->u.tkip.tx_initialized = 1; - tx->u.tx.control->flags |= - IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY; - } else - tx->u.tx.control->flags &= - ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY; - } - - tx->u.tx.control->key_idx = tx->key->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_txrx_result -ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc; - struct ieee80211_key *key = tx->key; - struct sk_buff *skb = tx->skb; - int wpa_test = 0, test = 0; - - fc = le16_to_cpu(hdr->frame_control); - - if (!key || key->alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - - tx->u.tx.control->icv_len = TKIP_ICV_LEN; - tx->u.tx.control->iv_len = TKIP_IV_LEN; - ieee80211_tx_set_iswep(tx); - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) || - (!tx->u.tx.unicast && - tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV)) { - wpa_test = 1; - } - - if (tx->sta) { - test = tx->sta->wpa_trigger; - tx->sta->wpa_trigger &= - ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG | - WPA_TRIGGER_TX_SKIP_SEQ); - } else { - test = tx->local->wpa_trigger; - tx->local->wpa_trigger &= - ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG | - WPA_TRIGGER_TX_SKIP_SEQ); - } - if (test & - (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG | - WPA_TRIGGER_TX_SKIP_SEQ)) { - printk(KERN_INFO "%s: WPA testing - TKIP TX packet number " - "%s%s%s%s\n", tx->dev->name, - tx->sta ? "[UNICAST]" : "[MULTICAST]", - test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "", - test & WPA_TRIGGER_TX_REPLAY_FRAG ? - "[REPLAY FRAG]" : "", - test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : ""); - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if (!tx->key->force_sw_encrypt && - !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) && - !wpa_test) { - /* hwaccel - with no need for preallocated room for IV/ICV */ - tx->u.tx.control->key_idx = tx->key->hw_key_idx; - return TXRX_CONTINUE; - } - - if (tkip_encrypt_skb(tx, skb, test) < 0) - return TXRX_DROP; - - if (tx->u.tx.extra_frag) { - int i; -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_REPLAY_FRAG) - test |= WPA_TRIGGER_TX_REPLAY; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - 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 TXRX_DROP; - } - } - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) { - printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV " - "for STA " MAC_FMT "\n", - tx->dev->name, MAC_ARG(tx->sta->addr)); - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV; - skb->data[skb->len - 1]++; - } else if (!tx->u.tx.unicast && - tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) { - printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV " - "for Group Key\n", - tx->dev->name); - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV; - skb->data[skb->len - 1]++; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - return TXRX_CONTINUE; -} - - -ieee80211_txrx_result -ieee80211_rx_h_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; - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - - if (!rx->key || rx->key->alg != ALG_TKIP || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - return TXRX_CONTINUE; - - if (!rx->sta || skb->len - hdrlen < 12) - return TXRX_DROP; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_ICV) { - printk(KERN_INFO "%s: WPA testing - corrupting RX TKIP ICV " - "for STA " MAC_FMT "\n", - rx->dev->name, MAC_ARG(rx->sta->addr)); - rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_ICV; - skb->data[skb->len - 1]++; - wpa_test = 1; - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - !rx->key->force_sw_encrypt) { - if (!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) { - /* Hardware takes care of all processing, including - * replay protection, so no need to continue here. */ - return TXRX_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); - if (res != TKIP_DECRYPT_OK || wpa_test) { - printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from " - MAC_FMT " (res=%d)\n", - rx->dev->name, MAC_ARG(rx->sta->addr), res); - return TXRX_DROP; - } - - /* 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 TXRX_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; - - tailneed = !key->force_sw_encrypt ? 0 : 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; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_REPLAY) - goto skip_pn_inc; -pn_inc: -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - for (i = CCMP_PN_LEN - 1; i >= 0; i--) { - pn[i]++; - if (pn[i]) - break; - } - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_SKIP_SEQ) { - test = 0; - goto pn_inc; - } -skip_pn_inc: -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - ccmp_pn2hdr(pos, pn, key->keyidx); - - if (!key->force_sw_encrypt) { - /* hwaccel - with preallocated room for CCMP header */ - tx->u.tx.control->key_idx = key->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_txrx_result -ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx) -{ - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - struct ieee80211_key *key = tx->key; - u16 fc; - struct sk_buff *skb = tx->skb; - int test = 0; - - fc = le16_to_cpu(hdr->frame_control); - - if (!key || key->alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (tx->sta) { - test = tx->sta->wpa_trigger; - tx->sta->wpa_trigger = 0; - } else { - test = tx->local->wpa_trigger; - tx->local->wpa_trigger = 0; - } - if (test & - (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG | - WPA_TRIGGER_TX_SKIP_SEQ)) { - printk(KERN_INFO "%s: WPA testing - CCMP TX packet number " - "%s%s%s%s\n", tx->dev->name, - tx->sta ? "[UNICAST]" : "[MULTICAST]", - test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "", - test & WPA_TRIGGER_TX_REPLAY_FRAG ? - "[REPLAY FRAG]" : "", - test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : ""); - } -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - - 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->force_sw_encrypt && - !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) { - /* hwaccel - with no need for preallocated room for CCMP " - * header or MIC fields */ - tx->u.tx.control->key_idx = tx->key->hw_key_idx; - return TXRX_CONTINUE; - } - - if (ccmp_encrypt_skb(tx, skb, test) < 0) - return TXRX_DROP; - - if (tx->u.tx.extra_frag) { - int i; -#ifdef CONFIG_HOSTAPD_WPA_TESTING - if (test & WPA_TRIGGER_TX_REPLAY_FRAG) - test |= WPA_TRIGGER_TX_REPLAY; -#endif /* CONFIG_HOSTAPD_WPA_TESTING */ - 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 TXRX_DROP; - } - } - - return TXRX_CONTINUE; -} - - -ieee80211_txrx_result -ieee80211_rx_h_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; - - fc = le16_to_cpu(hdr->frame_control); - hdrlen = ieee80211_get_hdrlen(fc); - - if (!key || key->alg != ALG_CCMP || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) - return TXRX_CONTINUE; - - data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN; - if (!rx->sta || data_len < 0) - return TXRX_DROP; - - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - !key->force_sw_encrypt && - !(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) - return TXRX_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_D80211_DEBUG - u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue]; - printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from " - MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN " - "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name, - MAC_ARG(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_D80211_DEBUG */ - key->u.ccmp.replays++; - return TXRX_DROP; - } - - if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) && - !key->force_sw_encrypt) { - /* hwaccel has already decrypted frame and verified MIC */ - } else { - 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)) { - printk(KERN_DEBUG "%s: CCMP decrypt failed for RX " - "frame from " MAC_FMT "\n", rx->dev->name, - MAC_ARG(rx->sta->addr)); - return TXRX_DROP; - } - } - - 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 TXRX_CONTINUE; -} - diff --git a/package/d80211/src/wpa.h b/package/d80211/src/wpa.h deleted file mode 100644 index cfbb93f982..0000000000 --- a/package/d80211/src/wpa.h +++ /dev/null @@ -1,34 +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_txrx_result -ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx); -ieee80211_txrx_result -ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx); - -ieee80211_txrx_result -ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx); -ieee80211_txrx_result -ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx); - -ieee80211_txrx_result -ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx); -ieee80211_txrx_result -ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx); - -int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da, - u8 *qos_tid, u8 **data, size_t *data_len); - -#endif /* WPA_H */ |