[mirror_ubuntu-bionic-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;

	/* 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,
			 bool local_state_change);
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,
		       bool local_state_change);
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,
			   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 net_device *dev,
			  struct ieee80211_channel *chan,
			  enum nl80211_channel_type channel_type,
			  bool channel_type_valid,
			  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_freq_to_chan(struct cfg80211_registered_device *rdev,
		  int freq, enum nl80211_channel_type channel_type);
int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
		      struct wireless_dev *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
704232c2 JB	73	/* must be last because of the way we do wiphy_priv(),
	74	* and it should at least be aligned to NETDEV_ALIGN */
	75	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
	76	};
	77
	78	static inline
	79	struct cfg80211_registered_device wiphy_to_dev(struct wiphy wiphy)
	80	{
	81	BUG_ON(!wiphy);
	82	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	83	}
	84
85fd129a LR	85	/* Note 0 is valid, hence phy0 */
	86	static inline
	87	bool wiphy_idx_valid(int wiphy_idx)
	88	{
	89	return (wiphy_idx >= 0);
	90	}
	91
e60d7443 AB	92
e60d7443 AB	93	extern struct workqueue_struct *cfg80211_wq;
a1794390	94	extern struct mutex cfg80211_mutex;
79c97e97	95	extern struct list_head cfg80211_rdev_list;
f5ea9120	96	extern int cfg80211_rdev_list_generation;
704232c2	97
7edfab7a	98	#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))
761cf7ec	99
806a9e39 LR	100	/*
806a9e39 LR	101	* You can use this to mark a wiphy_idx as not having an associated wiphy.
79c97e97	102	* It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
806a9e39 LR	103	*/
	104	#define WIPHY_IDX_STALE -1
	105
2a519311 JB	106	struct cfg80211_internal_bss {
	107	struct list_head list;
	108	struct rb_node rbn;
	109	unsigned long ts;
	110	struct kref ref;
19957bb3	111	atomic_t hold;
34a6eddb JM	112	bool beacon_ies_allocated;
34a6eddb JM	113	bool proberesp_ies_allocated;
a08c1c1a	114
2a519311 JB	115	/* must be last because of priv member */
	116	struct cfg80211_bss pub;
	117	};
	118
19957bb3 JB	119	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	120	{
	121	return container_of(pub, struct cfg80211_internal_bss, pub);
	122	}
	123
df7fc0f9 JB	124	static inline void cfg80211_ref_bss(struct cfg80211_internal_bss *bss)
	125	{
	126	kref_get(&bss->ref);
	127	}
	128
19957bb3 JB	129	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	130	{
	131	atomic_inc(&bss->hold);
	132	}
	133
	134	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	135	{
	136	int r = atomic_dec_return(&bss->hold);
	137	WARN_ON(r < 0);
	138	}
	139
	140
79c97e97	141	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	142	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	143
4bbf4d56	144	struct cfg80211_registered_device *
79c97e97	145	__cfg80211_rdev_from_info(struct genl_info *info);
4bbf4d56	146
55682965 JB	147	/*
	148	* This function returns a pointer to the driver
	149	* that the genl_info item that is passed refers to.
	150	* If successful, it returns non-NULL and also locks
	151	* the driver's mutex!
	152	*
4d0c8aea	153	* This means that you need to call cfg80211_unlock_rdev()
a1794390	154	* before being allowed to acquire &cfg80211_mutex!
55682965 JB	155	*
	156	* This is necessary because we need to lock the global
	157	* mutex to get an item off the list safely, and then
79c97e97	158	* we lock the rdev mutex so it doesn't go away under us.
55682965	159	*
a1794390	160	* We don't want to keep cfg80211_mutex locked
55682965 JB	161	* for all the time in order to allow requests on
	162	* other interfaces to go through at the same time.
	163	*
	164	* The result of this can be a PTR_ERR and hence must
	165	* be checked with IS_ERR() for errors.
	166	*/
	167	extern struct cfg80211_registered_device *
	168	cfg80211_get_dev_from_info(struct genl_info *info);
	169
79c97e97	170	/* requires cfg80211_rdev_mutex to be held! */
806a9e39 LR	171	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	172
55682965 JB	173	/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
55682965 JB	174	extern struct cfg80211_registered_device *
463d0183 JB	175	cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
	176
	177	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
	178	struct net *net);
55682965	179
79c97e97	180	static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
667503dd	181	{
79c97e97	182	mutex_lock(&rdev->mtx);
667503dd JB	183	}
667503dd JB	184
79c97e97	185	static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
4d0c8aea	186	{
79c97e97 JB	187	BUG_ON(IS_ERR(rdev) \|\| !rdev);
79c97e97 JB	188	mutex_unlock(&rdev->mtx);
4d0c8aea	189	}
55682965	190
667503dd JB	191	static inline void wdev_lock(struct wireless_dev *wdev)
	192	__acquires(wdev)
	193	{
	194	mutex_lock(&wdev->mtx);
	195	__acquire(wdev->mtx);
	196	}
	197
	198	static inline void wdev_unlock(struct wireless_dev *wdev)
	199	__releases(wdev)
	200	{
	201	__release(wdev->mtx);
	202	mutex_unlock(&wdev->mtx);
	203	}
	204
	205	#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx));
	206	#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx));
	207
	208	enum cfg80211_event_type {
	209	EVENT_CONNECT_RESULT,
	210	EVENT_ROAMED,
	211	EVENT_DISCONNECTED,
	212	EVENT_IBSS_JOINED,
	213	};
	214
	215	struct cfg80211_event {
	216	struct list_head list;
	217	enum cfg80211_event_type type;
	218
	219	union {
	220	struct {
	221	u8 bssid[ETH_ALEN];
	222	const u8 *req_ie;
	223	const u8 *resp_ie;
	224	size_t req_ie_len;
	225	size_t resp_ie_len;
	226	u16 status;
	227	} cr;
	228	struct {
	229	u8 bssid[ETH_ALEN];
	230	const u8 *req_ie;
	231	const u8 *resp_ie;
	232	size_t req_ie_len;
	233	size_t resp_ie_len;
	234	} rm;
	235	struct {
	236	const u8 *ie;
	237	size_t ie_len;
	238	u16 reason;
	239	} dc;
	240	struct {
	241	u8 bssid[ETH_ALEN];
	242	} ij;
	243	};
	244	};
	245
fffd0934 JB	246	struct cfg80211_cached_keys {
	247	struct key_params params[6];
	248	u8 data[6][WLAN_MAX_KEY_LEN];
	249	int def, defmgmt;
	250	};
	251
667503dd	252
704232c2	253	/* free object */
79c97e97	254	extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	255
79c97e97	256	extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
55682965 JB	257	char *newname);
55682965 JB	258
8318d78a	259	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
7db90f4a LR	260	void wiphy_update_regulatory(struct wiphy *wiphy,
7db90f4a LR	261	enum nl80211_reg_initiator setby);
8318d78a	262
2a519311	263	void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
cb3a8eec DW	264	void cfg80211_bss_age(struct cfg80211_registered_device *dev,
cb3a8eec DW	265	unsigned long age_secs);
2a519311	266
04a773ad	267	/* IBSS */
667503dd JB	268	int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
667503dd JB	269	struct net_device *dev,
fffd0934 JB	270	struct cfg80211_ibss_params *params,
fffd0934 JB	271	struct cfg80211_cached_keys *connkeys);
04a773ad JB	272	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
04a773ad JB	273	struct net_device *dev,
fffd0934 JB	274	struct cfg80211_ibss_params *params,
fffd0934 JB	275	struct cfg80211_cached_keys *connkeys);
9d308429	276	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
98d3a7ca JB	277	int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
98d3a7ca JB	278	struct net_device *dev, bool nowext);
04a773ad	279	int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
9d308429	280	struct net_device *dev, bool nowext);
667503dd	281	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid);
fffd0934 JB	282	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	283	struct wireless_dev *wdev);
04a773ad	284
19957bb3	285	/* MLME */
667503dd JB	286	int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	287	struct net_device *dev,
	288	struct ieee80211_channel *chan,
	289	enum nl80211_auth_type auth_type,
	290	const u8 *bssid,
	291	const u8 *ssid, int ssid_len,
fffd0934	292	const u8 *ie, int ie_len,
d5cdfacb JM	293	const u8 *key, int key_len, int key_idx,
d5cdfacb JM	294	bool local_state_change);
19957bb3 JB	295	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	296	struct net_device dev, struct ieee80211_channel chan,
	297	enum nl80211_auth_type auth_type, const u8 *bssid,
	298	const u8 *ssid, int ssid_len,
fffd0934	299	const u8 *ie, int ie_len,
d5cdfacb JM	300	const u8 *key, int key_len, int key_idx,
d5cdfacb JM	301	bool local_state_change);
667503dd JB	302	int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
	303	struct net_device *dev,
	304	struct ieee80211_channel *chan,
	305	const u8 bssid, const u8 prev_bssid,
	306	const u8 *ssid, int ssid_len,
	307	const u8 *ie, int ie_len, bool use_mfp,
	308	struct cfg80211_crypto_settings *crypt);
19957bb3 JB	309	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	310	struct net_device dev, struct ieee80211_channel chan,
3e5d7649 JB	311	const u8 bssid, const u8 prev_bssid,
3e5d7649 JB	312	const u8 *ssid, int ssid_len,
19957bb3 JB	313	const u8 *ie, int ie_len, bool use_mfp,
19957bb3 JB	314	struct cfg80211_crypto_settings *crypt);
667503dd JB	315	int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
667503dd JB	316	struct net_device dev, const u8 bssid,
d5cdfacb JM	317	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	318	bool local_state_change);
19957bb3 JB	319	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
19957bb3 JB	320	struct net_device dev, const u8 bssid,
d5cdfacb JM	321	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	322	bool local_state_change);
19957bb3 JB	323	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	324	struct net_device dev, const u8 bssid,
d5cdfacb JM	325	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	326	bool local_state_change);
19957bb3 JB	327	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
19957bb3 JB	328	struct net_device *dev);
667503dd JB	329	void __cfg80211_connect_result(struct net_device dev, const u8 bssid,
	330	const u8 *req_ie, size_t req_ie_len,
	331	const u8 *resp_ie, size_t resp_ie_len,
df7fc0f9 JB	332	u16 status, bool wextev,
df7fc0f9 JB	333	struct cfg80211_bss *bss);
2e161f78 JB	334	int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
	335	u16 frame_type, const u8 *match_data,
	336	int match_len);
	337	void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
	338	void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
	339	int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
	340	struct net_device *dev,
	341	struct ieee80211_channel *chan,
	342	enum nl80211_channel_type channel_type,
	343	bool channel_type_valid,
	344	const u8 buf, size_t len, u64 cookie);
19957bb3	345
b23aa676	346	/* SME */
667503dd JB	347	int __cfg80211_connect(struct cfg80211_registered_device *rdev,
667503dd JB	348	struct net_device *dev,
fffd0934	349	struct cfg80211_connect_params *connect,
f401a6f7 JB	350	struct cfg80211_cached_keys *connkeys,
f401a6f7 JB	351	const u8 *prev_bssid);
b23aa676 SO	352	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	353	struct net_device *dev,
fffd0934 JB	354	struct cfg80211_connect_params *connect,
fffd0934 JB	355	struct cfg80211_cached_keys *connkeys);
667503dd JB	356	int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
	357	struct net_device *dev, u16 reason,
	358	bool wextev);
b23aa676	359	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	360	struct net_device *dev, u16 reason,
f2129354 JB	361	bool wextev);
667503dd JB	362	void __cfg80211_roamed(struct wireless_dev wdev, const u8 bssid,
	363	const u8 *req_ie, size_t req_ie_len,
	364	const u8 *resp_ie, size_t resp_ie_len);
fffd0934 JB	365	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	366	struct wireless_dev *wdev);
b23aa676	367
6829c878	368	void cfg80211_conn_work(struct work_struct *work);
7d930bc3	369	void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
f401a6f7	370	bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
6829c878	371
08645126	372	/* internal helpers */
fffd0934 JB	373	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	374	struct key_params *params, int key_idx,
08645126	375	const u8 *mac_addr);
667503dd	376	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
6829c878 JB	377	size_t ie_len, u16 reason, bool from_ap);
	378	void cfg80211_sme_scan_done(struct net_device *dev);
	379	void cfg80211_sme_rx_auth(struct net_device dev, const u8 buf, size_t len);
19957bb3	380	void cfg80211_sme_disassoc(struct net_device *dev, int idx);
667503dd	381	void __cfg80211_scan_done(struct work_struct *wk);
01a0ac41	382	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
fffd0934	383	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	384	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
	385	struct net_device *dev, enum nl80211_iftype ntype,
	386	u32 flags, struct vif_params params);
	387	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
08645126	388
9588bbd5 JM	389	struct ieee80211_channel *
	390	rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
	391	int freq, enum nl80211_channel_type channel_type);
f444de05 JB	392	int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
	393	struct wireless_dev *wdev, int freq,
	394	enum nl80211_channel_type channel_type);
59bbb6f7	395
254416aa JL	396	u16 cfg80211_calculate_bitrate(struct rate_info *rate);
254416aa JL	397
f7969969 JB	398	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	399	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	400	#else
	401	/*
	402	* Trick to enable using it as a condition,
	403	* and also not give a warning when it's
	404	* not used that way.
	405	*/
	406	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	407	#endif
	408
704232c2	409	#endif /* __NET_WIRELESS_CORE_H */