[mirror_ubuntu-artful-kernel.git] / net / wireless / core.h

/*
 * 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/kref.h>
#include <linux/rbtree.h>
#include <linux/debugfs.h>
#include <linux/rfkill.h>
#include <linux/workqueue.h>
#include <net/genetlink.h>
#include <net/cfg80211.h>
#include "reg.h"

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;

	/* associate netdev list */
	struct mutex devlist_mtx;
	/* protected by devlist_mtx or RCU */
	struct list_head netdev_list;
	int devlist_generation;
	int opencount; /* also protected by devlist_mtx */
	wait_queue_head_t dev_wait;

	/* 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 */
	unsigned long suspend_at;
	struct work_struct scan_done_wk;

#ifdef CONFIG_NL80211_TESTMODE
	struct genl_info *testmode_info;
#endif

	struct work_struct conn_work;
	struct work_struct event_work;

	/* current channel */
	struct ieee80211_channel *channel;

	/* must be last because of the way we do wiphy_priv(),
	 * and it should at least be aligned to NETDEV_ALIGN */
	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
};

static inline
struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
{
	BUG_ON(!wiphy);
	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
}

/* Note 0 is valid, hence phy0 */
static inline
bool wiphy_idx_valid(int wiphy_idx)
{
	return (wiphy_idx >= 0);
}


extern struct workqueue_struct *cfg80211_wq;
extern struct mutex cfg80211_mutex;
extern struct list_head cfg80211_rdev_list;
extern int cfg80211_rdev_list_generation;

#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))

/*
 * You can use this to mark a wiphy_idx as not having an associated wiphy.
 * It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
 */
#define WIPHY_IDX_STALE -1

struct cfg80211_internal_bss {
	struct list_head list;
	struct rb_node rbn;
	unsigned long ts;
	struct kref ref;
	atomic_t hold;
	bool beacon_ies_allocated;
	bool proberesp_ies_allocated;

	/* 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_ref_bss(struct cfg80211_internal_bss *bss)
{
	kref_get(&bss->ref);
}

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);

struct cfg80211_registered_device *
__cfg80211_rdev_from_info(struct genl_info *info);

/*
 * This function returns a pointer to the driver
 * that the genl_info item that is passed refers to.
 * If successful, it returns non-NULL and also locks
 * the driver's mutex!
 *
 * This means that you need to call cfg80211_unlock_rdev()
 * before being allowed to acquire &cfg80211_mutex!
 *
 * This is necessary because we need to lock the global
 * mutex to get an item off the list safely, and then
 * we lock the rdev mutex so it doesn't go away under us.
 *
 * We don't want to keep cfg80211_mutex locked
 * for all the time in order to allow requests on
 * other interfaces to go through at the same time.
 *
 * The result of this can be a PTR_ERR and hence must
 * be checked with IS_ERR() for errors.
 */
extern struct cfg80211_registered_device *
cfg80211_get_dev_from_info(struct genl_info *info);

/* 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) WARN_ON(!mutex_is_locked(&(rdev)->mtx));
#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx));

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 {
			u8 bssid[ETH_ALEN];
			const u8 *req_ie;
			const u8 *resp_ie;
			size_t req_ie_len;
			size_t resp_ie_len;
		} 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;
};


/* 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 wiphy_update_regulatory(struct wiphy *wiphy,
			     enum nl80211_reg_initiator setby);

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);

/* 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);
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);
int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
			  struct net_device *dev,
			  struct ieee80211_channel *chan,
			  const u8 *bssid, const u8 *prev_bssid,
			  const u8 *ssid, int ssid_len,
			  const u8 *ie, int ie_len, bool use_mfp,
			  struct cfg80211_crypto_settings *crypt);
int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
			struct net_device *dev, struct ieee80211_channel *chan,
			const u8 *bssid, const u8 *prev_bssid,
			const u8 *ssid, int ssid_len,
			const u8 *ie, int ie_len, bool use_mfp,
			struct cfg80211_crypto_settings *crypt);
int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
			   struct net_device *dev, const u8 *bssid,
			   const u8 *ie, int ie_len, u16 reason);
int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
			 struct net_device *dev, const u8 *bssid,
			 const u8 *ie, int ie_len, u16 reason);
int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
			   struct net_device *dev, const u8 *bssid,
			   const u8 *ie, int ie_len, u16 reason);
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_action(struct wireless_dev *wdev, u32 snd_pid,
				  const u8 *match_data, int match_len);
void cfg80211_mlme_unregister_actions(struct wireless_dev *wdev, u32 nlpid);
void cfg80211_mlme_purge_actions(struct wireless_dev *wdev);
int cfg80211_mlme_action(struct cfg80211_registered_device *rdev,
			 struct net_device *dev,
			 struct ieee80211_channel *chan,
			 enum nl80211_channel_type channel_type,
			 const u8 *buf, size_t len, u64 *cookie);

/* 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, const u8 *bssid,
		       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 */
int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
				   struct key_params *params, int key_idx,
				   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, int idx);
void __cfg80211_scan_done(struct work_struct *wk);
void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
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);

struct ieee80211_channel *
rdev_fixed_channel(struct cfg80211_registered_device *rdev,
		   struct wireless_dev *for_wdev);
struct ieee80211_channel *
rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
		  int freq, enum nl80211_channel_type channel_type);
int rdev_set_freq(struct cfg80211_registered_device *rdev,
		  struct wireless_dev *for_wdev,
		  int freq, enum nl80211_channel_type channel_type);

u16 cfg80211_calculate_bitrate(struct rate_info *rate);

#ifdef CONFIG_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 */
Commit	Line	Data
704232c2 JB	1	/*
	2	* Wireless configuration interface internals.
	3	*
5f2aa25e	4	* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
704232c2 JB	5	*/
	6	#ifndef __NET_WIRELESS_CORE_H
	7	#define __NET_WIRELESS_CORE_H
	8	#include <linux/mutex.h>
	9	#include <linux/list.h>
	10	#include <linux/netdevice.h>
2a519311 JB	11	#include <linux/kref.h>
2a519311 JB	12	#include <linux/rbtree.h>
1ac61302	13	#include <linux/debugfs.h>
1f87f7d3 JB	14	#include <linux/rfkill.h>
1f87f7d3 JB	15	#include <linux/workqueue.h>
704232c2	16	#include <net/genetlink.h>
704232c2	17	#include <net/cfg80211.h>
3f2355cb	18	#include "reg.h"
704232c2 JB	19
704232c2 JB	20	struct cfg80211_registered_device {
3dcf670b	21	const struct cfg80211_ops *ops;
704232c2 JB	22	struct list_head list;
	23	/* we hold this mutex during any call so that
	24	* we cannot do multiple calls at once, and also
	25	* to avoid the deregister call to proceed while
	26	* any call is in progress */
	27	struct mutex mtx;
	28
1f87f7d3 JB	29	/* rfkill support */
	30	struct rfkill_ops rfkill_ops;
	31	struct rfkill *rfkill;
	32	struct work_struct rfkill_sync;
	33
3f2355cb LR	34	/* ISO / IEC 3166 alpha2 for which this device is receiving
	35	* country IEs on, this can help disregard country IEs from APs
	36	* on the same alpha2 quickly. The alpha2 may differ from
	37	* cfg80211_regdomain's alpha2 when an intersection has occurred.
	38	* If the AP is reconfigured this can also be used to tell us if
	39	* the country on the country IE changed. */
	40	char country_ie_alpha2[2];
	41
	42	/* If a Country IE has been received this tells us the environment
	43	* which its telling us its in. This defaults to ENVIRON_ANY */
	44	enum environment_cap env;
	45
704232c2	46	/* wiphy index, internal only */
b5850a7a	47	int wiphy_idx;
704232c2 JB	48
	49	/* associate netdev list */
	50	struct mutex devlist_mtx;
5f2aa25e	51	/* protected by devlist_mtx or RCU */
704232c2	52	struct list_head netdev_list;
f5ea9120	53	int devlist_generation;
ad002395 JB	54	int opencount; /* also protected by devlist_mtx */
ad002395 JB	55	wait_queue_head_t dev_wait;
704232c2	56
2a519311 JB	57	/* BSSes/scanning */
	58	spinlock_t bss_lock;
	59	struct list_head bss_list;
	60	struct rb_root bss_tree;
	61	u32 bss_generation;
	62	struct cfg80211_scan_request scan_req; / protected by RTNL */
cb3a8eec	63	unsigned long suspend_at;
667503dd	64	struct work_struct scan_done_wk;
2a519311	65
aff89a9b JB	66	#ifdef CONFIG_NL80211_TESTMODE
	67	struct genl_info *testmode_info;
	68	#endif
	69
6829c878	70	struct work_struct conn_work;
667503dd	71	struct work_struct event_work;
6829c878	72
0e82ffe3 JB	73	/* current channel */
	74	struct ieee80211_channel *channel;
	75
704232c2 JB	76	/* must be last because of the way we do wiphy_priv(),
	77	* and it should at least be aligned to NETDEV_ALIGN */
	78	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
	79	};
	80
	81	static inline
	82	struct cfg80211_registered_device wiphy_to_dev(struct wiphy wiphy)
	83	{
	84	BUG_ON(!wiphy);
	85	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	86	}
	87
85fd129a LR	88	/* Note 0 is valid, hence phy0 */
	89	static inline
	90	bool wiphy_idx_valid(int wiphy_idx)
	91	{
	92	return (wiphy_idx >= 0);
	93	}
	94
e60d7443 AB	95
e60d7443 AB	96	extern struct workqueue_struct *cfg80211_wq;
a1794390	97	extern struct mutex cfg80211_mutex;
79c97e97	98	extern struct list_head cfg80211_rdev_list;
f5ea9120	99	extern int cfg80211_rdev_list_generation;
704232c2	100
7edfab7a	101	#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))
761cf7ec	102
806a9e39 LR	103	/*
806a9e39 LR	104	* You can use this to mark a wiphy_idx as not having an associated wiphy.
79c97e97	105	* It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
806a9e39 LR	106	*/
	107	#define WIPHY_IDX_STALE -1
	108
2a519311 JB	109	struct cfg80211_internal_bss {
	110	struct list_head list;
	111	struct rb_node rbn;
	112	unsigned long ts;
	113	struct kref ref;
19957bb3	114	atomic_t hold;
34a6eddb JM	115	bool beacon_ies_allocated;
34a6eddb JM	116	bool proberesp_ies_allocated;
a08c1c1a	117
2a519311 JB	118	/* must be last because of priv member */
	119	struct cfg80211_bss pub;
	120	};
	121
19957bb3 JB	122	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	123	{
	124	return container_of(pub, struct cfg80211_internal_bss, pub);
	125	}
	126
df7fc0f9 JB	127	static inline void cfg80211_ref_bss(struct cfg80211_internal_bss *bss)
	128	{
	129	kref_get(&bss->ref);
	130	}
	131
19957bb3 JB	132	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	133	{
	134	atomic_inc(&bss->hold);
	135	}
	136
	137	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	138	{
	139	int r = atomic_dec_return(&bss->hold);
	140	WARN_ON(r < 0);
	141	}
	142
	143
79c97e97	144	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	145	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	146
4bbf4d56	147	struct cfg80211_registered_device *
79c97e97	148	__cfg80211_rdev_from_info(struct genl_info *info);
4bbf4d56	149
55682965 JB	150	/*
	151	* This function returns a pointer to the driver
	152	* that the genl_info item that is passed refers to.
	153	* If successful, it returns non-NULL and also locks
	154	* the driver's mutex!
	155	*
4d0c8aea	156	* This means that you need to call cfg80211_unlock_rdev()
a1794390	157	* before being allowed to acquire &cfg80211_mutex!
55682965 JB	158	*
	159	* This is necessary because we need to lock the global
	160	* mutex to get an item off the list safely, and then
79c97e97	161	* we lock the rdev mutex so it doesn't go away under us.
55682965	162	*
a1794390	163	* We don't want to keep cfg80211_mutex locked
55682965 JB	164	* for all the time in order to allow requests on
	165	* other interfaces to go through at the same time.
	166	*
	167	* The result of this can be a PTR_ERR and hence must
	168	* be checked with IS_ERR() for errors.
	169	*/
	170	extern struct cfg80211_registered_device *
	171	cfg80211_get_dev_from_info(struct genl_info *info);
	172
79c97e97	173	/* requires cfg80211_rdev_mutex to be held! */
806a9e39 LR	174	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	175
55682965 JB	176	/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
55682965 JB	177	extern struct cfg80211_registered_device *
463d0183 JB	178	cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
	179
	180	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
	181	struct net *net);
55682965	182
79c97e97	183	static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
667503dd	184	{
79c97e97	185	mutex_lock(&rdev->mtx);
667503dd JB	186	}
667503dd JB	187
79c97e97	188	static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
4d0c8aea	189	{
79c97e97 JB	190	BUG_ON(IS_ERR(rdev) \|\| !rdev);
79c97e97 JB	191	mutex_unlock(&rdev->mtx);
4d0c8aea	192	}
55682965	193
667503dd JB	194	static inline void wdev_lock(struct wireless_dev *wdev)
	195	__acquires(wdev)
	196	{
	197	mutex_lock(&wdev->mtx);
	198	__acquire(wdev->mtx);
	199	}
	200
	201	static inline void wdev_unlock(struct wireless_dev *wdev)
	202	__releases(wdev)
	203	{
	204	__release(wdev->mtx);
	205	mutex_unlock(&wdev->mtx);
	206	}
	207
	208	#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx));
	209	#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx));
	210
	211	enum cfg80211_event_type {
	212	EVENT_CONNECT_RESULT,
	213	EVENT_ROAMED,
	214	EVENT_DISCONNECTED,
	215	EVENT_IBSS_JOINED,
	216	};
	217
	218	struct cfg80211_event {
	219	struct list_head list;
	220	enum cfg80211_event_type type;
	221
	222	union {
	223	struct {
	224	u8 bssid[ETH_ALEN];
	225	const u8 *req_ie;
	226	const u8 *resp_ie;
	227	size_t req_ie_len;
	228	size_t resp_ie_len;
	229	u16 status;
	230	} cr;
	231	struct {
	232	u8 bssid[ETH_ALEN];
	233	const u8 *req_ie;
	234	const u8 *resp_ie;
	235	size_t req_ie_len;
	236	size_t resp_ie_len;
	237	} rm;
	238	struct {
	239	const u8 *ie;
	240	size_t ie_len;
	241	u16 reason;
	242	} dc;
	243	struct {
	244	u8 bssid[ETH_ALEN];
	245	} ij;
	246	};
	247	};
	248
fffd0934 JB	249	struct cfg80211_cached_keys {
	250	struct key_params params[6];
	251	u8 data[6][WLAN_MAX_KEY_LEN];
	252	int def, defmgmt;
	253	};
	254
667503dd	255
704232c2	256	/* free object */
79c97e97	257	extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	258
79c97e97	259	extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
55682965 JB	260	char *newname);
55682965 JB	261
8318d78a	262	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
7db90f4a LR	263	void wiphy_update_regulatory(struct wiphy *wiphy,
7db90f4a LR	264	enum nl80211_reg_initiator setby);
8318d78a	265
2a519311	266	void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
cb3a8eec DW	267	void cfg80211_bss_age(struct cfg80211_registered_device *dev,
cb3a8eec DW	268	unsigned long age_secs);
2a519311	269
04a773ad	270	/* IBSS */
667503dd JB	271	int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
667503dd JB	272	struct net_device *dev,
fffd0934 JB	273	struct cfg80211_ibss_params *params,
fffd0934 JB	274	struct cfg80211_cached_keys *connkeys);
04a773ad JB	275	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
04a773ad JB	276	struct net_device *dev,
fffd0934 JB	277	struct cfg80211_ibss_params *params,
fffd0934 JB	278	struct cfg80211_cached_keys *connkeys);
9d308429	279	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
98d3a7ca JB	280	int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
98d3a7ca JB	281	struct net_device *dev, bool nowext);
04a773ad	282	int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
9d308429	283	struct net_device *dev, bool nowext);
667503dd	284	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid);
fffd0934 JB	285	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	286	struct wireless_dev *wdev);
04a773ad	287
19957bb3	288	/* MLME */
667503dd JB	289	int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	290	struct net_device *dev,
	291	struct ieee80211_channel *chan,
	292	enum nl80211_auth_type auth_type,
	293	const u8 *bssid,
	294	const u8 *ssid, int ssid_len,
fffd0934 JB	295	const u8 *ie, int ie_len,
fffd0934 JB	296	const u8 *key, int key_len, int key_idx);
19957bb3 JB	297	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	298	struct net_device dev, struct ieee80211_channel chan,
	299	enum nl80211_auth_type auth_type, const u8 *bssid,
	300	const u8 *ssid, int ssid_len,
fffd0934 JB	301	const u8 *ie, int ie_len,
fffd0934 JB	302	const u8 *key, int key_len, int key_idx);
667503dd JB	303	int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
	304	struct net_device *dev,
	305	struct ieee80211_channel *chan,
	306	const u8 bssid, const u8 prev_bssid,
	307	const u8 *ssid, int ssid_len,
	308	const u8 *ie, int ie_len, bool use_mfp,
	309	struct cfg80211_crypto_settings *crypt);
19957bb3 JB	310	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	311	struct net_device dev, struct ieee80211_channel chan,
3e5d7649 JB	312	const u8 bssid, const u8 prev_bssid,
3e5d7649 JB	313	const u8 *ssid, int ssid_len,
19957bb3 JB	314	const u8 *ie, int ie_len, bool use_mfp,
19957bb3 JB	315	struct cfg80211_crypto_settings *crypt);
667503dd JB	316	int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
	317	struct net_device dev, const u8 bssid,
	318	const u8 *ie, int ie_len, u16 reason);
19957bb3 JB	319	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
	320	struct net_device dev, const u8 bssid,
	321	const u8 *ie, int ie_len, u16 reason);
	322	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
	323	struct net_device dev, const u8 bssid,
	324	const u8 *ie, int ie_len, u16 reason);
	325	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
	326	struct net_device *dev);
667503dd JB	327	void __cfg80211_connect_result(struct net_device dev, const u8 bssid,
	328	const u8 *req_ie, size_t req_ie_len,
	329	const u8 *resp_ie, size_t resp_ie_len,
df7fc0f9 JB	330	u16 status, bool wextev,
df7fc0f9 JB	331	struct cfg80211_bss *bss);
026331c4 JM	332	int cfg80211_mlme_register_action(struct wireless_dev *wdev, u32 snd_pid,
	333	const u8 *match_data, int match_len);
	334	void cfg80211_mlme_unregister_actions(struct wireless_dev *wdev, u32 nlpid);
	335	void cfg80211_mlme_purge_actions(struct wireless_dev *wdev);
	336	int cfg80211_mlme_action(struct cfg80211_registered_device *rdev,
	337	struct net_device *dev,
	338	struct ieee80211_channel *chan,
	339	enum nl80211_channel_type channel_type,
	340	const u8 buf, size_t len, u64 cookie);
19957bb3	341
b23aa676	342	/* SME */
667503dd JB	343	int __cfg80211_connect(struct cfg80211_registered_device *rdev,
667503dd JB	344	struct net_device *dev,
fffd0934	345	struct cfg80211_connect_params *connect,
f401a6f7 JB	346	struct cfg80211_cached_keys *connkeys,
f401a6f7 JB	347	const u8 *prev_bssid);
b23aa676 SO	348	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	349	struct net_device *dev,
fffd0934 JB	350	struct cfg80211_connect_params *connect,
fffd0934 JB	351	struct cfg80211_cached_keys *connkeys);
667503dd JB	352	int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
	353	struct net_device *dev, u16 reason,
	354	bool wextev);
b23aa676	355	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	356	struct net_device *dev, u16 reason,
f2129354 JB	357	bool wextev);
667503dd JB	358	void __cfg80211_roamed(struct wireless_dev wdev, const u8 bssid,
	359	const u8 *req_ie, size_t req_ie_len,
	360	const u8 *resp_ie, size_t resp_ie_len);
fffd0934 JB	361	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	362	struct wireless_dev *wdev);
b23aa676	363
6829c878	364	void cfg80211_conn_work(struct work_struct *work);
7d930bc3	365	void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
f401a6f7	366	bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
6829c878	367
08645126	368	/* internal helpers */
fffd0934 JB	369	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	370	struct key_params *params, int key_idx,
08645126	371	const u8 *mac_addr);
667503dd	372	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
6829c878 JB	373	size_t ie_len, u16 reason, bool from_ap);
	374	void cfg80211_sme_scan_done(struct net_device *dev);
	375	void cfg80211_sme_rx_auth(struct net_device dev, const u8 buf, size_t len);
19957bb3	376	void cfg80211_sme_disassoc(struct net_device *dev, int idx);
667503dd	377	void __cfg80211_scan_done(struct work_struct *wk);
01a0ac41	378	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
fffd0934	379	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	380	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
	381	struct net_device *dev, enum nl80211_iftype ntype,
	382	u32 flags, struct vif_params params);
	383	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
08645126	384
59bbb6f7 JB	385	struct ieee80211_channel *
	386	rdev_fixed_channel(struct cfg80211_registered_device *rdev,
	387	struct wireless_dev *for_wdev);
9588bbd5 JM	388	struct ieee80211_channel *
	389	rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
	390	int freq, enum nl80211_channel_type channel_type);
59bbb6f7	391	int rdev_set_freq(struct cfg80211_registered_device *rdev,
4b181144	392	struct wireless_dev *for_wdev,
59bbb6f7 JB	393	int freq, enum nl80211_channel_type channel_type);
59bbb6f7 JB	394
254416aa JL	395	u16 cfg80211_calculate_bitrate(struct rate_info *rate);
254416aa JL	396
f7969969 JB	397	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	398	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	399	#else
	400	/*
	401	* Trick to enable using it as a condition,
	402	* and also not give a warning when it's
	403	* not used that way.
	404	*/
	405	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	406	#endif
	407
704232c2	408	#endif /* __NET_WIRELESS_CORE_H */