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

/*
 * Wireless configuration interface internals.
 *
 * Copyright 2006-2009	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;
	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;

#ifdef CONFIG_CFG80211_DEBUGFS
	/* Debugfs entries */
	struct wiphy_debugfsdentries {
		struct dentry *rts_threshold;
		struct dentry *fragmentation_threshold;
		struct dentry *short_retry_limit;
		struct dentry *long_retry_limit;
		struct dentry *ht40allow_map;
	} debugfs;
#endif

	/* 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 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 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);
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);

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

#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	*
08645126	4	* Copyright 2006-2009 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;
	51	struct list_head netdev_list;
f5ea9120	52	int devlist_generation;
ad002395 JB	53	int opencount; /* also protected by devlist_mtx */
ad002395 JB	54	wait_queue_head_t dev_wait;
704232c2	55
2a519311 JB	56	/* BSSes/scanning */
	57	spinlock_t bss_lock;
	58	struct list_head bss_list;
	59	struct rb_root bss_tree;
	60	u32 bss_generation;
	61	struct cfg80211_scan_request scan_req; / protected by RTNL */
cb3a8eec	62	unsigned long suspend_at;
667503dd	63	struct work_struct scan_done_wk;
2a519311	64
aff89a9b JB	65	#ifdef CONFIG_NL80211_TESTMODE
	66	struct genl_info *testmode_info;
	67	#endif
	68
6829c878	69	struct work_struct conn_work;
667503dd	70	struct work_struct event_work;
6829c878	71
0e82ffe3 JB	72	/* current channel */
	73	struct ieee80211_channel *channel;
	74
e43e820c	75	#ifdef CONFIG_CFG80211_DEBUGFS
1ac61302 LR	76	/* Debugfs entries */
	77	struct wiphy_debugfsdentries {
	78	struct dentry *rts_threshold;
	79	struct dentry *fragmentation_threshold;
	80	struct dentry *short_retry_limit;
	81	struct dentry *long_retry_limit;
80a3511d	82	struct dentry *ht40allow_map;
1ac61302 LR	83	} debugfs;
	84	#endif
	85
704232c2 JB	86	/* must be last because of the way we do wiphy_priv(),
	87	* and it should at least be aligned to NETDEV_ALIGN */
	88	struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
	89	};
	90
	91	static inline
	92	struct cfg80211_registered_device wiphy_to_dev(struct wiphy wiphy)
	93	{
	94	BUG_ON(!wiphy);
	95	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	96	}
	97
85fd129a LR	98	/* Note 0 is valid, hence phy0 */
	99	static inline
	100	bool wiphy_idx_valid(int wiphy_idx)
	101	{
	102	return (wiphy_idx >= 0);
	103	}
	104
a1794390	105	extern struct mutex cfg80211_mutex;
79c97e97	106	extern struct list_head cfg80211_rdev_list;
f5ea9120	107	extern int cfg80211_rdev_list_generation;
704232c2	108
7edfab7a	109	#define assert_cfg80211_lock() WARN_ON(!mutex_is_locked(&cfg80211_mutex))
761cf7ec	110
806a9e39 LR	111	/*
806a9e39 LR	112	* You can use this to mark a wiphy_idx as not having an associated wiphy.
79c97e97	113	* It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
806a9e39 LR	114	*/
	115	#define WIPHY_IDX_STALE -1
	116
2a519311 JB	117	struct cfg80211_internal_bss {
	118	struct list_head list;
	119	struct rb_node rbn;
	120	unsigned long ts;
	121	struct kref ref;
19957bb3 JB	122	atomic_t hold;
19957bb3 JB	123	bool ies_allocated;
a08c1c1a	124
2a519311 JB	125	/* must be last because of priv member */
	126	struct cfg80211_bss pub;
	127	};
	128
19957bb3 JB	129	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	130	{
	131	return container_of(pub, struct cfg80211_internal_bss, pub);
	132	}
	133
df7fc0f9 JB	134	static inline void cfg80211_ref_bss(struct cfg80211_internal_bss *bss)
	135	{
	136	kref_get(&bss->ref);
	137	}
	138
19957bb3 JB	139	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	140	{
	141	atomic_inc(&bss->hold);
	142	}
	143
	144	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	145	{
	146	int r = atomic_dec_return(&bss->hold);
	147	WARN_ON(r < 0);
	148	}
	149
	150
79c97e97	151	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	152	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	153
4bbf4d56	154	struct cfg80211_registered_device *
79c97e97	155	__cfg80211_rdev_from_info(struct genl_info *info);
4bbf4d56	156
55682965 JB	157	/*
	158	* This function returns a pointer to the driver
	159	* that the genl_info item that is passed refers to.
	160	* If successful, it returns non-NULL and also locks
	161	* the driver's mutex!
	162	*
4d0c8aea	163	* This means that you need to call cfg80211_unlock_rdev()
a1794390	164	* before being allowed to acquire &cfg80211_mutex!
55682965 JB	165	*
	166	* This is necessary because we need to lock the global
	167	* mutex to get an item off the list safely, and then
79c97e97	168	* we lock the rdev mutex so it doesn't go away under us.
55682965	169	*
a1794390	170	* We don't want to keep cfg80211_mutex locked
55682965 JB	171	* for all the time in order to allow requests on
	172	* other interfaces to go through at the same time.
	173	*
	174	* The result of this can be a PTR_ERR and hence must
	175	* be checked with IS_ERR() for errors.
	176	*/
	177	extern struct cfg80211_registered_device *
	178	cfg80211_get_dev_from_info(struct genl_info *info);
	179
79c97e97	180	/* requires cfg80211_rdev_mutex to be held! */
806a9e39 LR	181	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	182
55682965 JB	183	/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
55682965 JB	184	extern struct cfg80211_registered_device *
463d0183 JB	185	cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
	186
	187	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
	188	struct net *net);
55682965	189
79c97e97	190	static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
667503dd	191	{
79c97e97	192	mutex_lock(&rdev->mtx);
667503dd JB	193	}
667503dd JB	194
79c97e97	195	static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
4d0c8aea	196	{
79c97e97 JB	197	BUG_ON(IS_ERR(rdev) \|\| !rdev);
79c97e97 JB	198	mutex_unlock(&rdev->mtx);
4d0c8aea	199	}
55682965	200
667503dd JB	201	static inline void wdev_lock(struct wireless_dev *wdev)
	202	__acquires(wdev)
	203	{
	204	mutex_lock(&wdev->mtx);
	205	__acquire(wdev->mtx);
	206	}
	207
	208	static inline void wdev_unlock(struct wireless_dev *wdev)
	209	__releases(wdev)
	210	{
	211	__release(wdev->mtx);
	212	mutex_unlock(&wdev->mtx);
	213	}
	214
	215	#define ASSERT_RDEV_LOCK(rdev) WARN_ON(!mutex_is_locked(&(rdev)->mtx));
	216	#define ASSERT_WDEV_LOCK(wdev) WARN_ON(!mutex_is_locked(&(wdev)->mtx));
	217
	218	enum cfg80211_event_type {
	219	EVENT_CONNECT_RESULT,
	220	EVENT_ROAMED,
	221	EVENT_DISCONNECTED,
	222	EVENT_IBSS_JOINED,
	223	};
	224
	225	struct cfg80211_event {
	226	struct list_head list;
	227	enum cfg80211_event_type type;
	228
	229	union {
	230	struct {
	231	u8 bssid[ETH_ALEN];
	232	const u8 *req_ie;
	233	const u8 *resp_ie;
	234	size_t req_ie_len;
	235	size_t resp_ie_len;
	236	u16 status;
	237	} cr;
	238	struct {
	239	u8 bssid[ETH_ALEN];
	240	const u8 *req_ie;
	241	const u8 *resp_ie;
	242	size_t req_ie_len;
	243	size_t resp_ie_len;
	244	} rm;
	245	struct {
	246	const u8 *ie;
	247	size_t ie_len;
	248	u16 reason;
	249	} dc;
	250	struct {
	251	u8 bssid[ETH_ALEN];
	252	} ij;
	253	};
	254	};
	255
fffd0934 JB	256	struct cfg80211_cached_keys {
	257	struct key_params params[6];
	258	u8 data[6][WLAN_MAX_KEY_LEN];
	259	int def, defmgmt;
	260	};
	261
667503dd	262
704232c2	263	/* free object */
79c97e97	264	extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	265
79c97e97	266	extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
55682965 JB	267	char *newname);
55682965 JB	268
8318d78a	269	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
7db90f4a LR	270	void wiphy_update_regulatory(struct wiphy *wiphy,
7db90f4a LR	271	enum nl80211_reg_initiator setby);
8318d78a	272
2a519311	273	void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
cb3a8eec DW	274	void cfg80211_bss_age(struct cfg80211_registered_device *dev,
cb3a8eec DW	275	unsigned long age_secs);
2a519311	276
04a773ad	277	/* IBSS */
667503dd JB	278	int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
667503dd JB	279	struct net_device *dev,
fffd0934 JB	280	struct cfg80211_ibss_params *params,
fffd0934 JB	281	struct cfg80211_cached_keys *connkeys);
04a773ad JB	282	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
04a773ad JB	283	struct net_device *dev,
fffd0934 JB	284	struct cfg80211_ibss_params *params,
fffd0934 JB	285	struct cfg80211_cached_keys *connkeys);
9d308429	286	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
04a773ad	287	int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
9d308429	288	struct net_device *dev, bool nowext);
667503dd	289	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid);
fffd0934 JB	290	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	291	struct wireless_dev *wdev);
04a773ad	292
19957bb3	293	/* MLME */
667503dd JB	294	int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	295	struct net_device *dev,
	296	struct ieee80211_channel *chan,
	297	enum nl80211_auth_type auth_type,
	298	const u8 *bssid,
	299	const u8 *ssid, int ssid_len,
fffd0934 JB	300	const u8 *ie, int ie_len,
fffd0934 JB	301	const u8 *key, int key_len, int key_idx);
19957bb3 JB	302	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
	303	struct net_device dev, struct ieee80211_channel chan,
	304	enum nl80211_auth_type auth_type, const u8 *bssid,
	305	const u8 *ssid, int ssid_len,
fffd0934 JB	306	const u8 *ie, int ie_len,
fffd0934 JB	307	const u8 *key, int key_len, int key_idx);
667503dd JB	308	int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
	309	struct net_device *dev,
	310	struct ieee80211_channel *chan,
	311	const u8 bssid, const u8 prev_bssid,
	312	const u8 *ssid, int ssid_len,
	313	const u8 *ie, int ie_len, bool use_mfp,
	314	struct cfg80211_crypto_settings *crypt);
19957bb3 JB	315	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	316	struct net_device dev, struct ieee80211_channel chan,
3e5d7649 JB	317	const u8 bssid, const u8 prev_bssid,
3e5d7649 JB	318	const u8 *ssid, int ssid_len,
19957bb3 JB	319	const u8 *ie, int ie_len, bool use_mfp,
19957bb3 JB	320	struct cfg80211_crypto_settings *crypt);
667503dd JB	321	int __cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
	322	struct net_device dev, const u8 bssid,
	323	const u8 *ie, int ie_len, u16 reason);
19957bb3 JB	324	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
	325	struct net_device dev, const u8 bssid,
	326	const u8 *ie, int ie_len, u16 reason);
	327	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
	328	struct net_device dev, const u8 bssid,
	329	const u8 *ie, int ie_len, u16 reason);
	330	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
	331	struct net_device *dev);
667503dd JB	332	void __cfg80211_connect_result(struct net_device dev, const u8 bssid,
	333	const u8 *req_ie, size_t req_ie_len,
	334	const u8 *resp_ie, size_t resp_ie_len,
df7fc0f9 JB	335	u16 status, bool wextev,
df7fc0f9 JB	336	struct cfg80211_bss *bss);
19957bb3	337
b23aa676	338	/* SME */
667503dd JB	339	int __cfg80211_connect(struct cfg80211_registered_device *rdev,
667503dd JB	340	struct net_device *dev,
fffd0934	341	struct cfg80211_connect_params *connect,
f401a6f7 JB	342	struct cfg80211_cached_keys *connkeys,
f401a6f7 JB	343	const u8 *prev_bssid);
b23aa676 SO	344	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	345	struct net_device *dev,
fffd0934 JB	346	struct cfg80211_connect_params *connect,
fffd0934 JB	347	struct cfg80211_cached_keys *connkeys);
667503dd JB	348	int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
	349	struct net_device *dev, u16 reason,
	350	bool wextev);
b23aa676	351	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	352	struct net_device *dev, u16 reason,
f2129354 JB	353	bool wextev);
667503dd JB	354	void __cfg80211_roamed(struct wireless_dev wdev, const u8 bssid,
	355	const u8 *req_ie, size_t req_ie_len,
	356	const u8 *resp_ie, size_t resp_ie_len);
fffd0934 JB	357	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	358	struct wireless_dev *wdev);
b23aa676	359
6829c878	360	void cfg80211_conn_work(struct work_struct *work);
f401a6f7	361	bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
6829c878	362
08645126	363	/* internal helpers */
fffd0934 JB	364	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	365	struct key_params *params, int key_idx,
08645126	366	const u8 *mac_addr);
667503dd	367	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
6829c878 JB	368	size_t ie_len, u16 reason, bool from_ap);
	369	void cfg80211_sme_scan_done(struct net_device *dev);
	370	void cfg80211_sme_rx_auth(struct net_device dev, const u8 buf, size_t len);
19957bb3	371	void cfg80211_sme_disassoc(struct net_device *dev, int idx);
667503dd	372	void __cfg80211_scan_done(struct work_struct *wk);
01a0ac41	373	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
fffd0934	374	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	375	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
	376	struct net_device *dev, enum nl80211_iftype ntype,
	377	u32 flags, struct vif_params params);
	378	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
08645126	379
59bbb6f7 JB	380	struct ieee80211_channel *
	381	rdev_fixed_channel(struct cfg80211_registered_device *rdev,
	382	struct wireless_dev *for_wdev);
	383	int rdev_set_freq(struct cfg80211_registered_device *rdev,
4b181144	384	struct wireless_dev *for_wdev,
59bbb6f7 JB	385	int freq, enum nl80211_channel_type channel_type);
59bbb6f7 JB	386
f7969969 JB	387	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	388	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	389	#else
	390	/*
	391	* Trick to enable using it as a condition,
	392	* and also not give a warning when it's
	393	* not used that way.
	394	*/
	395	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	396	#endif
	397
704232c2	398	#endif /* __NET_WIRELESS_CORE_H */