fishHEADmaster

1 files changed, 525 insertions, 0 deletions

diff --git a/net/wireless/core.h b/net/wireless/core.h
new file mode 100644
index 0000000..dc706b5
--- /dev/null
+++ b/net/wireless/core.h
@@ -0,0 +1,525 @@
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <linux/rbtree.h>
+#include <linux/debugfs.h>
+#include <linux/rfkill.h>
+#include <linux/workqueue.h>
+#include <linux/rtnetlink.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include "reg.h"
+
+
+#define WIPHY_IDX_INVALID	-1
+
+struct cfg80211_registered_device {
+	const struct cfg80211_ops *ops;
+	struct list_head list;
+	/* we hold this mutex during any call so that
+	 * we cannot do multiple calls at once, and also
+	 * to avoid the deregister call to proceed while
+	 * any call is in progress */
+	struct mutex mtx;
+
+	/* rfkill support */
+	struct rfkill_ops rfkill_ops;
+	struct rfkill *rfkill;
+	struct work_struct rfkill_sync;
+
+	/* ISO / IEC 3166 alpha2 for which this device is receiving
+	 * country IEs on, this can help disregard country IEs from APs
+	 * on the same alpha2 quickly. The alpha2 may differ from
+	 * cfg80211_regdomain's alpha2 when an intersection has occurred.
+	 * If the AP is reconfigured this can also be used to tell us if
+	 * the country on the country IE changed. */
+	char country_ie_alpha2[2];
+
+	/* If a Country IE has been received this tells us the environment
+	 * which its telling us its in. This defaults to ENVIRON_ANY */
+	enum environment_cap env;
+
+	/* wiphy index, internal only */
+	int wiphy_idx;
+
+	/* associated wireless interfaces */
+	struct mutex devlist_mtx;
+	/* protected by devlist_mtx or RCU */
+	struct list_head wdev_list;
+	int devlist_generation, wdev_id;
+	int opencount; /* also protected by devlist_mtx */
+	wait_queue_head_t dev_wait;
+
+	struct list_head beacon_registrations;
+	spinlock_t beacon_registrations_lock;
+
+	/* protected by RTNL only */
+	int num_running_ifaces;
+	int num_running_monitor_ifaces;
+
+	/* BSSes/scanning */
+	spinlock_t bss_lock;
+	struct list_head bss_list;
+	struct rb_root bss_tree;
+	u32 bss_generation;
+	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
+	struct cfg80211_sched_scan_request *sched_scan_req;
+	unsigned long suspend_at;
+	struct work_struct scan_done_wk;
+	struct work_struct sched_scan_results_wk;
+
+	struct mutex sched_scan_mtx;
+
+#ifdef CPTCFG_NL80211_TESTMODE
+	struct genl_info *testmode_info;
+#endif
+
+	struct work_struct conn_work;
+	struct work_struct event_work;
+
+	struct cfg80211_wowlan *wowlan;
+
+	struct delayed_work dfs_update_channels_wk;
+
+	/* netlink port which started critical protocol (0 means not started) */
+	u32 crit_proto_nlportid;
+
+	/* must be last because of the way we do wiphy_priv(),
+	 * and it should at least be aligned to NETDEV_ALIGN */
+	struct wiphy wiphy __aligned(NETDEV_ALIGN);
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
+{
+	BUG_ON(!wiphy);
+	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+static inline void
+cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
+{
+	int i;
+
+	if (!rdev->wowlan)
+		return;
+	for (i = 0; i < rdev->wowlan->n_patterns; i++)
+		kfree(rdev->wowlan->patterns[i].mask);
+	kfree(rdev->wowlan->patterns);
+	if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock)
+		sock_release(rdev->wowlan->tcp->sock);
+	kfree(rdev->wowlan->tcp);
+	kfree(rdev->wowlan);
+}
+
+extern struct workqueue_struct *cfg80211_wq;
+extern struct mutex cfg80211_mutex;
+extern struct list_head cfg80211_rdev_list;
+extern int cfg80211_rdev_list_generation;
+
+static inline void assert_cfg80211_lock(void)
+{
+	lockdep_assert_held(&cfg80211_mutex);
+}
+
+struct cfg80211_internal_bss {
+	struct list_head list;
+	struct list_head hidden_list;
+	struct rb_node rbn;
+	unsigned long ts;
+	unsigned long refcount;
+	atomic_t hold;
+
+	/* must be last because of priv member */
+	struct cfg80211_bss pub;
+};
+
+static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
+{
+	return container_of(pub, struct cfg80211_internal_bss, pub);
+}
+
+static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
+{
+	atomic_inc(&bss->hold);
+}
+
+static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
+{
+	int r = atomic_dec_return(&bss->hold);
+	WARN_ON(r < 0);
+}
+
+
+struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
+int get_wiphy_idx(struct wiphy *wiphy);
+
+/* requires cfg80211_rdev_mutex to be held! */
+struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
+
+/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
+
+int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
+			  struct net *net);
+
+static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
+{
+	mutex_lock(&rdev->mtx);
+}
+
+static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
+{
+	BUG_ON(IS_ERR(rdev) || !rdev);
+	mutex_unlock(&rdev->mtx);
+}
+
+static inline void wdev_lock(struct wireless_dev *wdev)
+	__acquires(wdev)
+{
+	mutex_lock(&wdev->mtx);
+	__acquire(wdev->mtx);
+}
+
+static inline void wdev_unlock(struct wireless_dev *wdev)
+	__releases(wdev)
+{
+	__release(wdev->mtx);
+	mutex_unlock(&wdev->mtx);
+}
+
+#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx)
+#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
+
+static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
+{
+	ASSERT_RTNL();
+
+	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
+	       rdev->num_running_ifaces > 0;
+}
+
+enum cfg80211_event_type {
+	EVENT_CONNECT_RESULT,
+	EVENT_ROAMED,
+	EVENT_DISCONNECTED,
+	EVENT_IBSS_JOINED,
+};
+
+struct cfg80211_event {
+	struct list_head list;
+	enum cfg80211_event_type type;
+
+	union {
+		struct {
+			u8 bssid[ETH_ALEN];
+			const u8 *req_ie;
+			const u8 *resp_ie;
+			size_t req_ie_len;
+			size_t resp_ie_len;
+			u16 status;
+		} cr;
+		struct {
+			const u8 *req_ie;
+			const u8 *resp_ie;
+			size_t req_ie_len;
+			size_t resp_ie_len;
+			struct cfg80211_bss *bss;
+		} rm;
+		struct {
+			const u8 *ie;
+			size_t ie_len;
+			u16 reason;
+		} dc;
+		struct {
+			u8 bssid[ETH_ALEN];
+		} ij;
+	};
+};
+
+struct cfg80211_cached_keys {
+	struct key_params params[6];
+	u8 data[6][WLAN_MAX_KEY_LEN];
+	int def, defmgmt;
+};
+
+enum cfg80211_chan_mode {
+	CHAN_MODE_UNDEFINED,
+	CHAN_MODE_SHARED,
+	CHAN_MODE_EXCLUSIVE,
+};
+
+struct cfg80211_beacon_registration {
+	struct list_head list;
+	u32 nlportid;
+};
+
+/* free object */
+extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
+
+extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+			       char *newname);
+
+void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
+
+void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
+void cfg80211_bss_age(struct cfg80211_registered_device *dev,
+                      unsigned long age_secs);
+
+/* IBSS */
+int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct cfg80211_ibss_params *params,
+			 struct cfg80211_cached_keys *connkeys);
+int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct cfg80211_ibss_params *params,
+		       struct cfg80211_cached_keys *connkeys);
+void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
+int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev, bool nowext);
+int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, bool nowext);
+void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid);
+int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
+			    struct wireless_dev *wdev);
+
+/* mesh */
+extern const struct mesh_config default_mesh_config;
+extern const struct mesh_setup default_mesh_setup;
+int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct mesh_setup *setup,
+			 const struct mesh_config *conf);
+int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct mesh_setup *setup,
+		       const struct mesh_config *conf);
+int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev,
+			      struct cfg80211_chan_def *chandef);
+
+/* AP */
+int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev);
+
+/* MLME */
+int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev,
+			 struct ieee80211_channel *chan,
+			 enum nl80211_auth_type auth_type,
+			 const u8 *bssid,
+			 const u8 *ssid, int ssid_len,
+			 const u8 *ie, int ie_len,
+			 const u8 *key, int key_len, int key_idx,
+			 const u8 *sae_data, int sae_data_len);
+int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev, struct ieee80211_channel *chan,
+		       enum nl80211_auth_type auth_type, const u8 *bssid,
+		       const u8 *ssid, int ssid_len,
+		       const u8 *ie, int ie_len,
+		       const u8 *key, int key_len, int key_idx,
+		       const u8 *sae_data, int sae_data_len);
+int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev,
+			  struct ieee80211_channel *chan,
+			  const u8 *bssid,
+			  const u8 *ssid, int ssid_len,
+			  struct cfg80211_assoc_request *req);
+int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
+			struct net_device *dev,
+			struct ieee80211_channel *chan,
+			const u8 *bssid,
+			const u8 *ssid, int ssid_len,
+			struct cfg80211_assoc_request *req);
+int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason,
+			   bool local_state_change);
+int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
+			 struct net_device *dev, const u8 *bssid,
+			 const u8 *ie, int ie_len, u16 reason,
+			 bool local_state_change);
+int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
+			   struct net_device *dev, const u8 *bssid,
+			   const u8 *ie, int ie_len, u16 reason,
+			   bool local_state_change);
+void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
+			struct net_device *dev);
+void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
+			       const u8 *req_ie, size_t req_ie_len,
+			       const u8 *resp_ie, size_t resp_ie_len,
+			       u16 status, bool wextev,
+			       struct cfg80211_bss *bss);
+int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
+				u16 frame_type, const u8 *match_data,
+				int match_len);
+void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
+void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
+int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
+			  struct wireless_dev *wdev,
+			  struct ieee80211_channel *chan, bool offchan,
+			  unsigned int wait, const u8 *buf, size_t len,
+			  bool no_cck, bool dont_wait_for_ack, u64 *cookie);
+void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
+			       const struct ieee80211_ht_cap *ht_capa_mask);
+void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
+				const struct ieee80211_vht_cap *vht_capa_mask);
+
+/* SME */
+int __cfg80211_connect(struct cfg80211_registered_device *rdev,
+		       struct net_device *dev,
+		       struct cfg80211_connect_params *connect,
+		       struct cfg80211_cached_keys *connkeys,
+		       const u8 *prev_bssid);
+int cfg80211_connect(struct cfg80211_registered_device *rdev,
+		     struct net_device *dev,
+		     struct cfg80211_connect_params *connect,
+		     struct cfg80211_cached_keys *connkeys);
+int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev, u16 reason,
+			  bool wextev);
+int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
+			struct net_device *dev, u16 reason,
+			bool wextev);
+void __cfg80211_roamed(struct wireless_dev *wdev,
+		       struct cfg80211_bss *bss,
+		       const u8 *req_ie, size_t req_ie_len,
+		       const u8 *resp_ie, size_t resp_ie_len);
+int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev);
+
+void cfg80211_conn_work(struct work_struct *work);
+void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
+bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
+
+/* internal helpers */
+bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
+int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
+				   struct key_params *params, int key_idx,
+				   bool pairwise, const u8 *mac_addr);
+void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
+			     size_t ie_len, u16 reason, bool from_ap);
+void cfg80211_sme_scan_done(struct net_device *dev);
+void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
+void cfg80211_sme_disassoc(struct net_device *dev,
+			   struct cfg80211_internal_bss *bss);
+void __cfg80211_scan_done(struct work_struct *wk);
+void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
+void __cfg80211_sched_scan_results(struct work_struct *wk);
+int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
+			       bool driver_initiated);
+void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
+int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
+			  struct net_device *dev, enum nl80211_iftype ntype,
+			  u32 *flags, struct vif_params *params);
+void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
+void cfg80211_process_wdev_events(struct wireless_dev *wdev);
+
+int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
+				 struct wireless_dev *wdev,
+				 enum nl80211_iftype iftype,
+				 struct ieee80211_channel *chan,
+				 enum cfg80211_chan_mode chanmode,
+				 u8 radar_detect);
+
+/**
+ * cfg80211_chandef_dfs_required - checks if radar detection is required
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
+ */
+int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
+				  const struct cfg80211_chan_def *c);
+
+void cfg80211_set_dfs_state(struct wiphy *wiphy,
+			    const struct cfg80211_chan_def *chandef,
+			    enum nl80211_dfs_state dfs_state);
+
+void cfg80211_dfs_channels_update_work(struct work_struct *work);
+
+
+static inline int
+cfg80211_can_change_interface(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev,
+			      enum nl80211_iftype iftype)
+{
+	return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL,
+					    CHAN_MODE_UNDEFINED, 0);
+}
+
+static inline int
+cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
+			   enum nl80211_iftype iftype)
+{
+	return cfg80211_can_change_interface(rdev, NULL, iftype);
+}
+
+static inline int
+cfg80211_can_use_chan(struct cfg80211_registered_device *rdev,
+		      struct wireless_dev *wdev,
+		      struct ieee80211_channel *chan,
+		      enum cfg80211_chan_mode chanmode)
+{
+	return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
+					    chan, chanmode, 0);
+}
+
+static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
+{
+	unsigned long end = jiffies;
+
+	if (end >= start)
+		return jiffies_to_msecs(end - start);
+
+	return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
+}
+
+void
+cfg80211_get_chan_state(struct wireless_dev *wdev,
+		        struct ieee80211_channel **chan,
+		        enum cfg80211_chan_mode *chanmode);
+
+int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
+				 struct cfg80211_chan_def *chandef);
+
+int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
+			   const u8 *rates, unsigned int n_rates,
+			   u32 *mask);
+
+int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
+				 u32 beacon_int);
+
+void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
+			       enum nl80211_iftype iftype, int num);
+
+void cfg80211_leave(struct cfg80211_registered_device *rdev,
+		    struct wireless_dev *wdev);
+
+void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
+			      struct wireless_dev *wdev);
+
+#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
+
+#ifdef CPTCFG_CFG80211_DEVELOPER_WARNINGS
+#define CFG80211_DEV_WARN_ON(cond)	WARN_ON(cond)
+#else
+/*
+ * Trick to enable using it as a condition,
+ * and also not give a warning when it's
+ * not used that way.
+ */
+#define CFG80211_DEV_WARN_ON(cond)	({bool __r = (cond); __r; })
+#endif
+
+#endif /* __NET_WIRELESS_CORE_H */