[deliverable/linux.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/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;

	/* 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];

	/*
	 * the driver requests the regulatory core to set this regulatory
	 * domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
	 * devices using the regulatory_set_wiphy_regd() API
	 */
	const struct ieee80211_regdomain *requested_regd;

	/* 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, protected by rtnl 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 sk_buff *scan_msg;
	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 genl_info *cur_cmd_info;

	struct work_struct conn_work;
	struct work_struct event_work;

	struct delayed_work dfs_update_channels_wk;

	/* netlink port which started critical protocol (0 means not started) */
	u32 crit_proto_nlportid;

	struct cfg80211_coalesce *coalesce;

	spinlock_t destroy_list_lock;
	struct list_head destroy_list;
	struct work_struct destroy_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 __aligned(NETDEV_ALIGN);
};

static inline
struct cfg80211_registered_device *wiphy_to_rdev(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)
{
#ifdef CONFIG_PM
	int i;

	if (!rdev->wiphy.wowlan_config)
		return;
	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
		kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
	kfree(rdev->wiphy.wowlan_config->patterns);
	if (rdev->wiphy.wowlan_config->tcp &&
	    rdev->wiphy.wowlan_config->tcp->sock)
		sock_release(rdev->wiphy.wowlan_config->tcp->sock);
	kfree(rdev->wiphy.wowlan_config->tcp);
	kfree(rdev->wiphy.wowlan_config->nd_config);
	kfree(rdev->wiphy.wowlan_config);
#endif
}

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

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);

struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);

int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
			  struct net *net);

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_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,
	EVENT_STOPPED,
};

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];
			struct ieee80211_channel *channel;
		} 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;
};

struct cfg80211_iface_destroy {
	struct list_head list;
	u32 nlportid;
};

void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);

/* free object */
void cfg80211_dev_free(struct cfg80211_registered_device *rdev);

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 *rdev);
void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
                      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);
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,
			    struct ieee80211_channel *channel);
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_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);

/* OCB */
int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
			struct net_device *dev,
			struct ocb_setup *setup);
int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
		      struct net_device *dev,
		      struct ocb_setup *setup);
int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
			 struct net_device *dev);
int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
		       struct net_device *dev);

/* AP */
int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
		       struct net_device *dev, bool notify);
int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
		     struct net_device *dev, bool notify);

/* 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_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_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);
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 cfg80211_mgmt_tx_params *params,
			  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 events */
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);
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);
void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
			     size_t ie_len, u16 reason, bool from_ap);
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);

/* SME implementation */
void cfg80211_conn_work(struct work_struct *work);
void cfg80211_sme_scan_done(struct net_device *dev);
bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
void cfg80211_sme_disassoc(struct wireless_dev *wdev);
void cfg80211_sme_deauth(struct wireless_dev *wdev);
void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
void cfg80211_sme_assoc_timeout(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_scan_done(struct work_struct *wk);
void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
			   bool send_message);
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_usable - checks if chandef is DFS usable
 * @wiphy: the wiphy to validate against
 * @chandef: the channel definition to check
 *
 * Checks if chandef is usable and we can/need start CAC on such channel.
 *
 * Return: Return true if all channels available and at least
 *	   one channel require CAC (NL80211_DFS_USABLE)
 */
bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
				 const struct cfg80211_chan_def *chandef);

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);

unsigned int
cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
			      const struct cfg80211_chan_def *chandef);

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 + (ULONG_MAX - start) + 1);
}

void
cfg80211_get_chan_state(struct wireless_dev *wdev,
		        struct ieee80211_channel **chan,
		        enum cfg80211_chan_mode *chanmode,
		        u8 *radar_detect);

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_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 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
704232c2 JB	8	#include <linux/list.h>
704232c2 JB	9	#include <linux/netdevice.h>
2a519311	10	#include <linux/rbtree.h>
1ac61302	11	#include <linux/debugfs.h>
1f87f7d3 JB	12	#include <linux/rfkill.h>
1f87f7d3 JB	13	#include <linux/workqueue.h>
c5a7e582	14	#include <linux/rtnetlink.h>
704232c2	15	#include <net/genetlink.h>
704232c2	16	#include <net/cfg80211.h>
3f2355cb	17	#include "reg.h"
704232c2	18
f4173766 JB	19
	20	#define WIPHY_IDX_INVALID -1
	21
704232c2	22	struct cfg80211_registered_device {
3dcf670b	23	const struct cfg80211_ops *ops;
704232c2	24	struct list_head list;
704232c2	25
1f87f7d3 JB	26	/* rfkill support */
	27	struct rfkill_ops rfkill_ops;
	28	struct rfkill *rfkill;
	29	struct work_struct rfkill_sync;
	30
3f2355cb LR	31	/* ISO / IEC 3166 alpha2 for which this device is receiving
	32	* country IEs on, this can help disregard country IEs from APs
	33	* on the same alpha2 quickly. The alpha2 may differ from
	34	* cfg80211_regdomain's alpha2 when an intersection has occurred.
	35	* If the AP is reconfigured this can also be used to tell us if
	36	* the country on the country IE changed. */
	37	char country_ie_alpha2[2];
	38
b0d7aa59 JD	39	/*
	40	* the driver requests the regulatory core to set this regulatory
	41	* domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
	42	* devices using the regulatory_set_wiphy_regd() API
	43	*/
	44	const struct ieee80211_regdomain *requested_regd;
	45
3f2355cb LR	46	/* If a Country IE has been received this tells us the environment
	47	* which its telling us its in. This defaults to ENVIRON_ANY */
	48	enum environment_cap env;
	49
704232c2	50	/* wiphy index, internal only */
b5850a7a	51	int wiphy_idx;
704232c2	52
5fe231e8	53	/* associated wireless interfaces, protected by rtnl or RCU */
89a54e48 JB	54	struct list_head wdev_list;
89a54e48 JB	55	int devlist_generation, wdev_id;
ad002395 JB	56	int opencount; /* also protected by devlist_mtx */
ad002395 JB	57	wait_queue_head_t dev_wait;
704232c2	58
37c73b5f BG	59	struct list_head beacon_registrations;
37c73b5f BG	60	spinlock_t beacon_registrations_lock;
5e760230	61
c5a7e582	62	/* protected by RTNL only */
dbbae26a MK	63	int num_running_ifaces;
	64	int num_running_monitor_ifaces;
	65
2a519311 JB	66	/* BSSes/scanning */
	67	spinlock_t bss_lock;
	68	struct list_head bss_list;
	69	struct rb_root bss_tree;
	70	u32 bss_generation;
	71	struct cfg80211_scan_request scan_req; / protected by RTNL */
f9d15d16	72	struct sk_buff *scan_msg;
807f8a8c	73	struct cfg80211_sched_scan_request *sched_scan_req;
cb3a8eec	74	unsigned long suspend_at;
667503dd	75	struct work_struct scan_done_wk;
807f8a8c	76	struct work_struct sched_scan_results_wk;
2a519311	77
ad7e718c	78	struct genl_info *cur_cmd_info;
aff89a9b	79
6829c878	80	struct work_struct conn_work;
667503dd	81	struct work_struct event_work;
6829c878	82
04f39047 SW	83	struct delayed_work dfs_update_channels_wk;
04f39047 SW	84
5de17984 AS	85	/* netlink port which started critical protocol (0 means not started) */
	86	u32 crit_proto_nlportid;
	87
be29b99a AK	88	struct cfg80211_coalesce *coalesce;
be29b99a AK	89
78f22b6a JB	90	spinlock_t destroy_list_lock;
	91	struct list_head destroy_list;
	92	struct work_struct destroy_work;
	93
704232c2 JB	94	/* must be last because of the way we do wiphy_priv(),
704232c2 JB	95	* and it should at least be aligned to NETDEV_ALIGN */
1c06ef98	96	struct wiphy wiphy __aligned(NETDEV_ALIGN);
704232c2 JB	97	};
	98
	99	static inline
f26cbf40	100	struct cfg80211_registered_device wiphy_to_rdev(struct wiphy wiphy)
704232c2 JB	101	{
	102	BUG_ON(!wiphy);
	103	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	104	}
	105
ff1b6e69 JB	106	static inline void
	107	cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
	108	{
6abb9cb9	109	#ifdef CONFIG_PM
ff1b6e69 JB	110	int i;
ff1b6e69 JB	111
6abb9cb9	112	if (!rdev->wiphy.wowlan_config)
ff1b6e69	113	return;
6abb9cb9 JB	114	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
	115	kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
	116	kfree(rdev->wiphy.wowlan_config->patterns);
	117	if (rdev->wiphy.wowlan_config->tcp &&
	118	rdev->wiphy.wowlan_config->tcp->sock)
	119	sock_release(rdev->wiphy.wowlan_config->tcp->sock);
	120	kfree(rdev->wiphy.wowlan_config->tcp);
8cd4d456	121	kfree(rdev->wiphy.wowlan_config->nd_config);
6abb9cb9 JB	122	kfree(rdev->wiphy.wowlan_config);
6abb9cb9 JB	123	#endif
ff1b6e69	124	}
e60d7443 AB	125
e60d7443 AB	126	extern struct workqueue_struct *cfg80211_wq;
79c97e97	127	extern struct list_head cfg80211_rdev_list;
f5ea9120	128	extern int cfg80211_rdev_list_generation;
704232c2	129
2a519311 JB	130	struct cfg80211_internal_bss {
2a519311 JB	131	struct list_head list;
776b3580	132	struct list_head hidden_list;
2a519311 JB	133	struct rb_node rbn;
2a519311 JB	134	unsigned long ts;
776b3580	135	unsigned long refcount;
19957bb3	136	atomic_t hold;
a08c1c1a	137
2a519311 JB	138	/* must be last because of priv member */
	139	struct cfg80211_bss pub;
	140	};
	141
19957bb3 JB	142	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	143	{
	144	return container_of(pub, struct cfg80211_internal_bss, pub);
	145	}
	146
	147	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	148	{
	149	atomic_inc(&bss->hold);
	150	}
	151
	152	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	153	{
	154	int r = atomic_dec_return(&bss->hold);
	155	WARN_ON(r < 0);
	156	}
	157
	158
79c97e97	159	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	160	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	161
806a9e39 LR	162	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	163
463d0183 JB	164	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
463d0183 JB	165	struct net *net);
55682965	166
667503dd JB	167	static inline void wdev_lock(struct wireless_dev *wdev)
	168	__acquires(wdev)
	169	{
	170	mutex_lock(&wdev->mtx);
	171	__acquire(wdev->mtx);
	172	}
	173
	174	static inline void wdev_unlock(struct wireless_dev *wdev)
	175	__releases(wdev)
	176	{
	177	__release(wdev->mtx);
	178	mutex_unlock(&wdev->mtx);
	179	}
	180
46a5ebaf	181	#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
667503dd	182
dbbae26a MK	183	static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
dbbae26a MK	184	{
c5a7e582	185	ASSERT_RTNL();
dbbae26a MK	186
	187	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
	188	rdev->num_running_ifaces > 0;
	189	}
	190
667503dd JB	191	enum cfg80211_event_type {
	192	EVENT_CONNECT_RESULT,
	193	EVENT_ROAMED,
	194	EVENT_DISCONNECTED,
	195	EVENT_IBSS_JOINED,
f04c2203	196	EVENT_STOPPED,
667503dd JB	197	};
	198
	199	struct cfg80211_event {
	200	struct list_head list;
	201	enum cfg80211_event_type type;
	202
	203	union {
	204	struct {
	205	u8 bssid[ETH_ALEN];
	206	const u8 *req_ie;
	207	const u8 *resp_ie;
	208	size_t req_ie_len;
	209	size_t resp_ie_len;
	210	u16 status;
	211	} cr;
	212	struct {
667503dd JB	213	const u8 *req_ie;
	214	const u8 *resp_ie;
	215	size_t req_ie_len;
	216	size_t resp_ie_len;
adbde344	217	struct cfg80211_bss *bss;
667503dd JB	218	} rm;
	219	struct {
	220	const u8 *ie;
	221	size_t ie_len;
	222	u16 reason;
	223	} dc;
	224	struct {
	225	u8 bssid[ETH_ALEN];
fe94f3a4	226	struct ieee80211_channel *channel;
667503dd JB	227	} ij;
	228	};
	229	};
	230
fffd0934 JB	231	struct cfg80211_cached_keys {
	232	struct key_params params[6];
	233	u8 data[6][WLAN_MAX_KEY_LEN];
	234	int def, defmgmt;
	235	};
	236
26ab9a0c MK	237	enum cfg80211_chan_mode {
	238	CHAN_MODE_UNDEFINED,
	239	CHAN_MODE_SHARED,
	240	CHAN_MODE_EXCLUSIVE,
	241	};
	242
37c73b5f BG	243	struct cfg80211_beacon_registration {
	244	struct list_head list;
	245	u32 nlportid;
	246	};
667503dd	247
78f22b6a JB	248	struct cfg80211_iface_destroy {
	249	struct list_head list;
	250	u32 nlportid;
	251	};
	252
	253	void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
	254
704232c2	255	/* free object */
c1b1203d	256	void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	257
c1b1203d JP	258	int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
c1b1203d JP	259	char *newname);
55682965	260
8318d78a	261	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
8318d78a	262
1b8ec87a ZG	263	void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
1b8ec87a ZG	264	void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
cb3a8eec	265	unsigned long age_secs);
2a519311	266
04a773ad JB	267	/* IBSS */
	268	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
	269	struct net_device *dev,
fffd0934 JB	270	struct cfg80211_ibss_params *params,
fffd0934 JB	271	struct cfg80211_cached_keys *connkeys);
9d308429	272	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
98d3a7ca JB	273	int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
98d3a7ca JB	274	struct net_device *dev, bool nowext);
04a773ad	275	int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
9d308429	276	struct net_device *dev, bool nowext);
fe94f3a4 AQ	277	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid,
fe94f3a4 AQ	278	struct ieee80211_channel *channel);
fffd0934 JB	279	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	280	struct wireless_dev *wdev);
04a773ad	281
29cbe68c JB	282	/* mesh */
29cbe68c JB	283	extern const struct mesh_config default_mesh_config;
c80d545d	284	extern const struct mesh_setup default_mesh_setup;
29cbe68c JB	285	int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	286	struct net_device *dev,
cc1d2806	287	struct mesh_setup *setup,
29cbe68c JB	288	const struct mesh_config *conf);
	289	int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
	290	struct net_device *dev,
cc1d2806	291	struct mesh_setup *setup,
29cbe68c	292	const struct mesh_config *conf);
f04c2203 MK	293	int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
f04c2203 MK	294	struct net_device *dev);
29cbe68c JB	295	int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	296	struct net_device *dev);
683b6d3b JB	297	int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
	298	struct wireless_dev *wdev,
	299	struct cfg80211_chan_def *chandef);
29cbe68c	300
6e0bd6c3 RL	301	/* OCB */
	302	int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	303	struct net_device *dev,
	304	struct ocb_setup *setup);
	305	int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	306	struct net_device *dev,
	307	struct ocb_setup *setup);
	308	int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	309	struct net_device *dev);
	310	int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	311	struct net_device *dev);
	312
60771780	313	/* AP */
f04c2203 MK	314	int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
f04c2203 MK	315	struct net_device *dev, bool notify);
60771780	316	int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
7c8d5e03	317	struct net_device *dev, bool notify);
60771780	318
19957bb3 JB	319	/* MLME */
19957bb3 JB	320	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
91bf9b26 JB	321	struct net_device *dev,
	322	struct ieee80211_channel *chan,
	323	enum nl80211_auth_type auth_type,
	324	const u8 *bssid,
19957bb3	325	const u8 *ssid, int ssid_len,
fffd0934	326	const u8 *ie, int ie_len,
e39e5b5e JM	327	const u8 *key, int key_len, int key_idx,
e39e5b5e JM	328	const u8 *sae_data, int sae_data_len);
19957bb3	329	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
f62fab73 JB	330	struct net_device *dev,
	331	struct ieee80211_channel *chan,
	332	const u8 *bssid,
3e5d7649	333	const u8 *ssid, int ssid_len,
f62fab73	334	struct cfg80211_assoc_request *req);
19957bb3 JB	335	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
19957bb3 JB	336	struct net_device dev, const u8 bssid,
d5cdfacb JM	337	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	338	bool local_state_change);
19957bb3 JB	339	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	340	struct net_device dev, const u8 bssid,
d5cdfacb JM	341	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	342	bool local_state_change);
19957bb3 JB	343	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
19957bb3 JB	344	struct net_device *dev);
2e161f78 JB	345	int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
	346	u16 frame_type, const u8 *match_data,
	347	int match_len);
	348	void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
	349	void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
	350	int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
71bbc994	351	struct wireless_dev *wdev,
b176e629 AO	352	struct cfg80211_mgmt_tx_params *params,
b176e629 AO	353	u64 *cookie);
7e7c8926 BG	354	void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
7e7c8926 BG	355	const struct ieee80211_ht_cap *ht_capa_mask);
ee2aca34 JB	356	void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
ee2aca34 JB	357	const struct ieee80211_vht_cap *vht_capa_mask);
19957bb3	358
ceca7b71	359	/* SME events */
b23aa676 SO	360	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	361	struct net_device *dev,
fffd0934	362	struct cfg80211_connect_params *connect,
83739b03 JB	363	struct cfg80211_cached_keys *connkeys,
83739b03 JB	364	const u8 *prev_bssid);
ceca7b71 JB	365	void __cfg80211_connect_result(struct net_device dev, const u8 bssid,
	366	const u8 *req_ie, size_t req_ie_len,
	367	const u8 *resp_ie, size_t resp_ie_len,
	368	u16 status, bool wextev,
	369	struct cfg80211_bss *bss);
	370	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
	371	size_t ie_len, u16 reason, bool from_ap);
b23aa676	372	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	373	struct net_device *dev, u16 reason,
f2129354 JB	374	bool wextev);
ed9d0102	375	void __cfg80211_roamed(struct wireless_dev *wdev,
adbde344	376	struct cfg80211_bss *bss,
667503dd JB	377	const u8 *req_ie, size_t req_ie_len,
667503dd JB	378	const u8 *resp_ie, size_t resp_ie_len);
fffd0934 JB	379	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	380	struct wireless_dev *wdev);
b23aa676	381
ceca7b71	382	/* SME implementation */
6829c878	383	void cfg80211_conn_work(struct work_struct *work);
ceca7b71 JB	384	void cfg80211_sme_scan_done(struct net_device *dev);
	385	bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
	386	void cfg80211_sme_rx_auth(struct wireless_dev wdev, const u8 buf, size_t len);
	387	void cfg80211_sme_disassoc(struct wireless_dev *wdev);
	388	void cfg80211_sme_deauth(struct wireless_dev *wdev);
	389	void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
	390	void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
6829c878	391
08645126	392	/* internal helpers */
38ba3c57	393	bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
fffd0934 JB	394	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	395	struct key_params *params, int key_idx,
e31b8213	396	bool pairwise, const u8 *mac_addr);
667503dd	397	void __cfg80211_scan_done(struct work_struct *wk);
f9d15d16 JB	398	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
f9d15d16 JB	399	bool send_message);
807f8a8c LC	400	void __cfg80211_sched_scan_results(struct work_struct *wk);
	401	int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
	402	bool driver_initiated);
fffd0934	403	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	404	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
	405	struct net_device *dev, enum nl80211_iftype ntype,
	406	u32 flags, struct vif_params params);
	407	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
1f6fc43e	408	void cfg80211_process_wdev_events(struct wireless_dev *wdev);
08645126	409
d4e50c59 MK	410	int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
	411	struct wireless_dev *wdev,
	412	enum nl80211_iftype iftype,
	413	struct ieee80211_channel *chan,
11c4a075 SW	414	enum cfg80211_chan_mode chanmode,
11c4a075 SW	415	u8 radar_detect);
d4e50c59	416
fe7c3a1f JD	417	/**
	418	* cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
	419	* @wiphy: the wiphy to validate against
	420	* @chandef: the channel definition to check
	421	*
	422	* Checks if chandef is usable and we can/need start CAC on such channel.
	423	*
	424	* Return: Return true if all channels available and at least
	425	* one channel require CAC (NL80211_DFS_USABLE)
	426	*/
	427	bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
	428	const struct cfg80211_chan_def *chandef);
	429
04f39047 SW	430	void cfg80211_set_dfs_state(struct wiphy *wiphy,
	431	const struct cfg80211_chan_def *chandef,
	432	enum nl80211_dfs_state dfs_state);
	433
	434	void cfg80211_dfs_channels_update_work(struct work_struct *work);
	435
31559f35 JD	436	unsigned int
	437	cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
	438	const struct cfg80211_chan_def *chandef);
04f39047	439
04f39047 SW	440	static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
	441	{
	442	unsigned long end = jiffies;
	443
	444	if (end >= start)
	445	return jiffies_to_msecs(end - start);
	446
0ce12026	447	return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
04f39047 SW	448	}
04f39047 SW	449
26ab9a0c	450	void
8e95ea49	451	cfg80211_get_chan_state(struct wireless_dev *wdev,
26ab9a0c	452	struct ieee80211_channel **chan,
9e0e2961 MK	453	enum cfg80211_chan_mode *chanmode,
9e0e2961 MK	454	u8 *radar_detect);
26ab9a0c	455
e8c9bd5b	456	int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
683b6d3b	457	struct cfg80211_chan_def *chandef);
59bbb6f7	458
34850ab2 JB	459	int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
	460	const u8 *rates, unsigned int n_rates,
	461	u32 *mask);
	462
56d1893d JB	463	int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
	464	u32 beacon_int);
	465
dbbae26a MK	466	void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
	467	enum nl80211_iftype iftype, int num);
	468
f04c2203 MK	469	void __cfg80211_leave(struct cfg80211_registered_device *rdev,
f04c2203 MK	470	struct wireless_dev *wdev);
81256969 SG	471	void cfg80211_leave(struct cfg80211_registered_device *rdev,
	472	struct wireless_dev *wdev);
	473
f9f47529 JB	474	void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
	475	struct wireless_dev *wdev);
	476
d4e50c59 MK	477	#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
d4e50c59 MK	478
f7969969 JB	479	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	480	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	481	#else
	482	/*
	483	* Trick to enable using it as a condition,
	484	* and also not give a warning when it's
	485	* not used that way.
	486	*/
	487	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	488	#endif
	489
704232c2	490	#endif /* __NET_WIRELESS_CORE_H */