[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/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;

	/* protected by RTNL */
	int devlist_generation, wdev_id;
	int opencount;
	wait_queue_head_t dev_wait;

	struct list_head beacon_registrations;
	spinlock_t beacon_registrations_lock;

	struct list_head mlme_unreg;
	spinlock_t mlme_unreg_lock;
	struct work_struct mlme_unreg_wk;

	/* 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;
	u32 bss_entries;
	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
	struct sk_buff *scan_msg;
	struct list_head sched_scan_req_list;
	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;

	struct work_struct destroy_work;
	struct work_struct sched_scan_stop_wk;

	struct cfg80211_chan_def radar_chandef;
	struct work_struct propagate_radar_detect_wk;

	struct cfg80211_chan_def cac_done_chandef;
	struct work_struct propagate_cac_done_wk;

	/* 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;
	u64 ts_boottime;
	unsigned long ts;
	unsigned long refcount;
	atomic_t hold;

	/* time at the start of the reception of the first octet of the
	 * timestamp field of the last beacon/probe received for this BSS.
	 * The time is the TSF of the BSS specified by %parent_bssid.
	 */
	u64 parent_tsf;

	/* the BSS according to which %parent_tsf is set. This is set to
	 * the BSS that the interface that requested the scan was connected to
	 * when the beacon/probe was received.
	 */
	u8 parent_bssid[ETH_ALEN] __aligned(2);

	/* 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 cfg80211_connect_resp_params cr;
		struct cfg80211_roam_info rm;
		struct {
			const u8 *ie;
			size_t ie_len;
			u16 reason;
			bool locally_generated;
		} dc;
		struct {
			u8 bssid[ETH_ALEN];
			struct ieee80211_channel *channel;
		} ij;
	};
};

struct cfg80211_cached_keys {
	struct key_params params[CFG80211_MAX_WEP_KEYS];
	u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
	int def;
};

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_cqm_config {
	u32 rssi_hyst;
	s32 last_rssi_event_value;
	int n_rssi_thresholds;
	s32 rssi_thresholds[0];
};

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 *auth_data, int auth_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_unreg_wk(struct work_struct *wk);
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,
			       struct cfg80211_connect_resp_params *params,
			       bool wextev);
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_roam_info *info);
int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
			      struct wireless_dev *wdev);
void cfg80211_autodisconnect_wk(struct work_struct *work);

/* 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);
void cfg80211_sme_abandon_assoc(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_add_sched_scan_req(struct cfg80211_registered_device *rdev,
				 struct cfg80211_sched_scan_request *req);
int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
				     bool want_multi);
void __cfg80211_sched_scan_results(struct work_struct *wk);
int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
				 struct cfg80211_sched_scan_request *req,
				 bool driver_initiated);
int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
			       u64 reqid, 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,
			  struct vif_params *params);
void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
void cfg80211_process_wdev_events(struct wireless_dev *wdev);

bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
				u32 center_freq_khz, u32 bw_khz);

/**
 * 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);

void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);

bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
				  struct ieee80211_channel *chan);

bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);

bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
			  struct ieee80211_channel *chan);

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,
				 enum nl80211_iftype iftype, 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);

void cfg80211_stop_nan(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

void cfg80211_cqm_config_free(struct wireless_dev *wdev);

#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
53873f13	53	/* protected by RTNL */
89a54e48	54	int devlist_generation, wdev_id;
8b9b2f06	55	int opencount;
ad002395	56	wait_queue_head_t dev_wait;
704232c2	57
37c73b5f BG	58	struct list_head beacon_registrations;
37c73b5f BG	59	spinlock_t beacon_registrations_lock;
5e760230	60
33d8783c JB	61	struct list_head mlme_unreg;
	62	spinlock_t mlme_unreg_lock;
	63	struct work_struct mlme_unreg_wk;
	64
c5a7e582	65	/* protected by RTNL only */
dbbae26a MK	66	int num_running_ifaces;
	67	int num_running_monitor_ifaces;
	68
2a519311 JB	69	/* BSSes/scanning */
	70	spinlock_t bss_lock;
	71	struct list_head bss_list;
	72	struct rb_root bss_tree;
	73	u32 bss_generation;
9853a55e	74	u32 bss_entries;
2a519311	75	struct cfg80211_scan_request scan_req; / protected by RTNL */
f9d15d16	76	struct sk_buff *scan_msg;
ca986ad9	77	struct list_head sched_scan_req_list;
cb3a8eec	78	unsigned long suspend_at;
667503dd	79	struct work_struct scan_done_wk;
807f8a8c	80	struct work_struct sched_scan_results_wk;
2a519311	81
ad7e718c	82	struct genl_info *cur_cmd_info;
aff89a9b	83
6829c878	84	struct work_struct conn_work;
667503dd	85	struct work_struct event_work;
6829c878	86
04f39047 SW	87	struct delayed_work dfs_update_channels_wk;
04f39047 SW	88
5de17984 AS	89	/* netlink port which started critical protocol (0 means not started) */
	90	u32 crit_proto_nlportid;
	91
be29b99a AK	92	struct cfg80211_coalesce *coalesce;
be29b99a AK	93
78f22b6a	94	struct work_struct destroy_work;
93a1e86c JR	95	struct work_struct sched_scan_stop_wk;
93a1e86c JR	96
89766727 VT	97	struct cfg80211_chan_def radar_chandef;
	98	struct work_struct propagate_radar_detect_wk;
	99
	100	struct cfg80211_chan_def cac_done_chandef;
	101	struct work_struct propagate_cac_done_wk;
	102
704232c2 JB	103	/* must be last because of the way we do wiphy_priv(),
704232c2 JB	104	* and it should at least be aligned to NETDEV_ALIGN */
1c06ef98	105	struct wiphy wiphy __aligned(NETDEV_ALIGN);
704232c2 JB	106	};
	107
	108	static inline
f26cbf40	109	struct cfg80211_registered_device wiphy_to_rdev(struct wiphy wiphy)
704232c2 JB	110	{
	111	BUG_ON(!wiphy);
	112	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	113	}
	114
ff1b6e69 JB	115	static inline void
	116	cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
	117	{
6abb9cb9	118	#ifdef CONFIG_PM
ff1b6e69 JB	119	int i;
ff1b6e69 JB	120
6abb9cb9	121	if (!rdev->wiphy.wowlan_config)
ff1b6e69	122	return;
6abb9cb9 JB	123	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
	124	kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
	125	kfree(rdev->wiphy.wowlan_config->patterns);
	126	if (rdev->wiphy.wowlan_config->tcp &&
	127	rdev->wiphy.wowlan_config->tcp->sock)
	128	sock_release(rdev->wiphy.wowlan_config->tcp->sock);
	129	kfree(rdev->wiphy.wowlan_config->tcp);
8cd4d456	130	kfree(rdev->wiphy.wowlan_config->nd_config);
6abb9cb9 JB	131	kfree(rdev->wiphy.wowlan_config);
6abb9cb9 JB	132	#endif
ff1b6e69	133	}
e60d7443 AB	134
e60d7443 AB	135	extern struct workqueue_struct *cfg80211_wq;
79c97e97	136	extern struct list_head cfg80211_rdev_list;
f5ea9120	137	extern int cfg80211_rdev_list_generation;
704232c2	138
2a519311 JB	139	struct cfg80211_internal_bss {
2a519311 JB	140	struct list_head list;
776b3580	141	struct list_head hidden_list;
2a519311	142	struct rb_node rbn;
6e19bc4b	143	u64 ts_boottime;
2a519311	144	unsigned long ts;
776b3580	145	unsigned long refcount;
19957bb3	146	atomic_t hold;
a08c1c1a	147
1d76250b AS	148	/* time at the start of the reception of the first octet of the
	149	* timestamp field of the last beacon/probe received for this BSS.
	150	* The time is the TSF of the BSS specified by %parent_bssid.
	151	*/
	152	u64 parent_tsf;
	153
	154	/* the BSS according to which %parent_tsf is set. This is set to
	155	* the BSS that the interface that requested the scan was connected to
	156	* when the beacon/probe was received.
	157	*/
	158	u8 parent_bssid[ETH_ALEN] __aligned(2);
	159
2a519311 JB	160	/* must be last because of priv member */
	161	struct cfg80211_bss pub;
	162	};
	163
19957bb3 JB	164	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	165	{
	166	return container_of(pub, struct cfg80211_internal_bss, pub);
	167	}
	168
	169	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	170	{
	171	atomic_inc(&bss->hold);
	172	}
	173
	174	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	175	{
	176	int r = atomic_dec_return(&bss->hold);
	177	WARN_ON(r < 0);
	178	}
	179
	180
79c97e97	181	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	182	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	183
806a9e39 LR	184	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	185
463d0183 JB	186	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
463d0183 JB	187	struct net *net);
55682965	188
667503dd JB	189	static inline void wdev_lock(struct wireless_dev *wdev)
	190	__acquires(wdev)
	191	{
	192	mutex_lock(&wdev->mtx);
	193	__acquire(wdev->mtx);
	194	}
	195
	196	static inline void wdev_unlock(struct wireless_dev *wdev)
	197	__releases(wdev)
	198	{
	199	__release(wdev->mtx);
	200	mutex_unlock(&wdev->mtx);
	201	}
	202
46a5ebaf	203	#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
667503dd	204
dbbae26a MK	205	static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
dbbae26a MK	206	{
c5a7e582	207	ASSERT_RTNL();
dbbae26a MK	208
	209	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
	210	rdev->num_running_ifaces > 0;
	211	}
	212
667503dd JB	213	enum cfg80211_event_type {
	214	EVENT_CONNECT_RESULT,
	215	EVENT_ROAMED,
	216	EVENT_DISCONNECTED,
	217	EVENT_IBSS_JOINED,
f04c2203	218	EVENT_STOPPED,
667503dd JB	219	};
	220
	221	struct cfg80211_event {
	222	struct list_head list;
	223	enum cfg80211_event_type type;
	224
	225	union {
5349a0f7	226	struct cfg80211_connect_resp_params cr;
29ce6ecb	227	struct cfg80211_roam_info rm;
667503dd JB	228	struct {
	229	const u8 *ie;
	230	size_t ie_len;
	231	u16 reason;
80279fb7	232	bool locally_generated;
667503dd JB	233	} dc;
	234	struct {
	235	u8 bssid[ETH_ALEN];
fe94f3a4	236	struct ieee80211_channel *channel;
667503dd JB	237	} ij;
	238	};
	239	};
	240
fffd0934	241	struct cfg80211_cached_keys {
b8676221 DS	242	struct key_params params[CFG80211_MAX_WEP_KEYS];
b8676221 DS	243	u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
89b706fb	244	int def;
fffd0934 JB	245	};
fffd0934 JB	246
26ab9a0c MK	247	enum cfg80211_chan_mode {
	248	CHAN_MODE_UNDEFINED,
	249	CHAN_MODE_SHARED,
	250	CHAN_MODE_EXCLUSIVE,
	251	};
	252
37c73b5f BG	253	struct cfg80211_beacon_registration {
	254	struct list_head list;
	255	u32 nlportid;
	256	};
667503dd	257
4a4b8169 AZ	258	struct cfg80211_cqm_config {
	259	u32 rssi_hyst;
	260	s32 last_rssi_event_value;
	261	int n_rssi_thresholds;
	262	s32 rssi_thresholds[0];
	263	};
	264
78f22b6a JB	265	void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
78f22b6a JB	266
704232c2	267	/* free object */
c1b1203d	268	void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	269
c1b1203d JP	270	int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
c1b1203d JP	271	char *newname);
55682965	272
8318d78a	273	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
8318d78a	274
1b8ec87a ZG	275	void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
1b8ec87a ZG	276	void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
cb3a8eec	277	unsigned long age_secs);
2a519311	278
04a773ad JB	279	/* IBSS */
	280	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
	281	struct net_device *dev,
fffd0934 JB	282	struct cfg80211_ibss_params *params,
fffd0934 JB	283	struct cfg80211_cached_keys *connkeys);
9d308429	284	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
98d3a7ca JB	285	int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
98d3a7ca JB	286	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);
fe94f3a4 AQ	289	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid,
fe94f3a4 AQ	290	struct ieee80211_channel *channel);
fffd0934 JB	291	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	292	struct wireless_dev *wdev);
04a773ad	293
29cbe68c JB	294	/* mesh */
29cbe68c JB	295	extern const struct mesh_config default_mesh_config;
c80d545d	296	extern const struct mesh_setup default_mesh_setup;
29cbe68c JB	297	int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	298	struct net_device *dev,
cc1d2806	299	struct mesh_setup *setup,
29cbe68c JB	300	const struct mesh_config *conf);
	301	int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
	302	struct net_device *dev,
cc1d2806	303	struct mesh_setup *setup,
29cbe68c	304	const struct mesh_config *conf);
f04c2203 MK	305	int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
f04c2203 MK	306	struct net_device *dev);
29cbe68c JB	307	int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	308	struct net_device *dev);
683b6d3b JB	309	int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
	310	struct wireless_dev *wdev,
	311	struct cfg80211_chan_def *chandef);
29cbe68c	312
6e0bd6c3 RL	313	/* OCB */
	314	int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	315	struct net_device *dev,
	316	struct ocb_setup *setup);
	317	int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	318	struct net_device *dev,
	319	struct ocb_setup *setup);
	320	int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	321	struct net_device *dev);
	322	int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	323	struct net_device *dev);
	324
60771780	325	/* AP */
f04c2203 MK	326	int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
f04c2203 MK	327	struct net_device *dev, bool notify);
60771780	328	int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
7c8d5e03	329	struct net_device *dev, bool notify);
60771780	330
19957bb3 JB	331	/* MLME */
19957bb3 JB	332	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
91bf9b26 JB	333	struct net_device *dev,
	334	struct ieee80211_channel *chan,
	335	enum nl80211_auth_type auth_type,
	336	const u8 *bssid,
19957bb3	337	const u8 *ssid, int ssid_len,
fffd0934	338	const u8 *ie, int ie_len,
e39e5b5e	339	const u8 *key, int key_len, int key_idx,
11b6b5a4	340	const u8 *auth_data, int auth_data_len);
19957bb3	341	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
f62fab73 JB	342	struct net_device *dev,
	343	struct ieee80211_channel *chan,
	344	const u8 *bssid,
3e5d7649	345	const u8 *ssid, int ssid_len,
f62fab73	346	struct cfg80211_assoc_request *req);
19957bb3 JB	347	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
19957bb3 JB	348	struct net_device dev, const u8 bssid,
d5cdfacb JM	349	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	350	bool local_state_change);
19957bb3 JB	351	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	352	struct net_device dev, const u8 bssid,
d5cdfacb JM	353	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	354	bool local_state_change);
19957bb3 JB	355	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
19957bb3 JB	356	struct net_device *dev);
2e161f78 JB	357	int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
	358	u16 frame_type, const u8 *match_data,
	359	int match_len);
33d8783c	360	void cfg80211_mlme_unreg_wk(struct work_struct *wk);
2e161f78 JB	361	void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
	362	void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
	363	int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
71bbc994	364	struct wireless_dev *wdev,
b176e629 AO	365	struct cfg80211_mgmt_tx_params *params,
b176e629 AO	366	u64 *cookie);
7e7c8926 BG	367	void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
7e7c8926 BG	368	const struct ieee80211_ht_cap *ht_capa_mask);
ee2aca34 JB	369	void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
ee2aca34 JB	370	const struct ieee80211_vht_cap *vht_capa_mask);
19957bb3	371
ceca7b71	372	/* SME events */
b23aa676 SO	373	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	374	struct net_device *dev,
fffd0934	375	struct cfg80211_connect_params *connect,
83739b03 JB	376	struct cfg80211_cached_keys *connkeys,
83739b03 JB	377	const u8 *prev_bssid);
5349a0f7 VK	378	void __cfg80211_connect_result(struct net_device *dev,
	379	struct cfg80211_connect_resp_params *params,
	380	bool wextev);
ceca7b71 JB	381	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
ceca7b71 JB	382	size_t ie_len, u16 reason, bool from_ap);
b23aa676	383	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	384	struct net_device *dev, u16 reason,
f2129354 JB	385	bool wextev);
ed9d0102	386	void __cfg80211_roamed(struct wireless_dev *wdev,
29ce6ecb	387	struct cfg80211_roam_info *info);
fffd0934 JB	388	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	389	struct wireless_dev *wdev);
bd2522b1	390	void cfg80211_autodisconnect_wk(struct work_struct *work);
b23aa676	391
ceca7b71	392	/* SME implementation */
6829c878	393	void cfg80211_conn_work(struct work_struct *work);
ceca7b71 JB	394	void cfg80211_sme_scan_done(struct net_device *dev);
	395	bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
	396	void cfg80211_sme_rx_auth(struct wireless_dev wdev, const u8 buf, size_t len);
	397	void cfg80211_sme_disassoc(struct wireless_dev *wdev);
	398	void cfg80211_sme_deauth(struct wireless_dev *wdev);
	399	void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
	400	void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
e6f462df	401	void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
6829c878	402
08645126	403	/* internal helpers */
38ba3c57	404	bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
fffd0934 JB	405	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	406	struct key_params *params, int key_idx,
e31b8213	407	bool pairwise, const u8 *mac_addr);
667503dd	408	void __cfg80211_scan_done(struct work_struct *wk);
f9d15d16 JB	409	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
f9d15d16 JB	410	bool send_message);
ca986ad9 AVS	411	void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
	412	struct cfg80211_sched_scan_request *req);
	413	int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
	414	bool want_multi);
807f8a8c	415	void __cfg80211_sched_scan_results(struct work_struct *wk);
ca986ad9 AVS	416	int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
	417	struct cfg80211_sched_scan_request *req,
	418	bool driver_initiated);
807f8a8c	419	int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
ca986ad9	420	u64 reqid, bool driver_initiated);
fffd0934	421	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	422	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
3d54d255 JB	423	struct net_device *dev, enum nl80211_iftype ntype,
818a986e	424	struct vif_params *params);
3d54d255	425	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
1f6fc43e	426	void cfg80211_process_wdev_events(struct wireless_dev *wdev);
08645126	427
4787cfa0 RM	428	bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
	429	u32 center_freq_khz, u32 bw_khz);
	430
fe7c3a1f JD	431	/**
	432	* cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
	433	* @wiphy: the wiphy to validate against
	434	* @chandef: the channel definition to check
	435	*
	436	* Checks if chandef is usable and we can/need start CAC on such channel.
	437	*
	438	* Return: Return true if all channels available and at least
	439	* one channel require CAC (NL80211_DFS_USABLE)
	440	*/
	441	bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
	442	const struct cfg80211_chan_def *chandef);
	443
04f39047 SW	444	void cfg80211_set_dfs_state(struct wiphy *wiphy,
	445	const struct cfg80211_chan_def *chandef,
	446	enum nl80211_dfs_state dfs_state);
	447
	448	void cfg80211_dfs_channels_update_work(struct work_struct *work);
	449
31559f35 JD	450	unsigned int
	451	cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
	452	const struct cfg80211_chan_def *chandef);
04f39047	453
b35a51c7 VT	454	void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
	455
	456	bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
	457	struct ieee80211_channel *chan);
	458
	459	bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
	460
	461	bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
	462	struct ieee80211_channel *chan);
	463
04f39047 SW	464	static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
	465	{
	466	unsigned long end = jiffies;
	467
	468	if (end >= start)
	469	return jiffies_to_msecs(end - start);
	470
0ce12026	471	return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
04f39047 SW	472	}
04f39047 SW	473
26ab9a0c	474	void
8e95ea49	475	cfg80211_get_chan_state(struct wireless_dev *wdev,
26ab9a0c	476	struct ieee80211_channel **chan,
9e0e2961 MK	477	enum cfg80211_chan_mode *chanmode,
9e0e2961 MK	478	u8 *radar_detect);
26ab9a0c	479
e8c9bd5b	480	int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
683b6d3b	481	struct cfg80211_chan_def *chandef);
59bbb6f7	482
34850ab2 JB	483	int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
	484	const u8 *rates, unsigned int n_rates,
	485	u32 *mask);
	486
56d1893d	487	int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
0c317a02	488	enum nl80211_iftype iftype, u32 beacon_int);
56d1893d	489
dbbae26a MK	490	void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
	491	enum nl80211_iftype iftype, int num);
	492
f04c2203 MK	493	void __cfg80211_leave(struct cfg80211_registered_device *rdev,
f04c2203 MK	494	struct wireless_dev *wdev);
81256969 SG	495	void cfg80211_leave(struct cfg80211_registered_device *rdev,
	496	struct wireless_dev *wdev);
	497
f9f47529 JB	498	void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
	499	struct wireless_dev *wdev);
	500
cb3b7d87 AB	501	void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
	502	struct wireless_dev *wdev);
	503
d4e50c59 MK	504	#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
d4e50c59 MK	505
f7969969 JB	506	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	507	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	508	#else
	509	/*
	510	* Trick to enable using it as a condition,
	511	* and also not give a warning when it's
	512	* not used that way.
	513	*/
	514	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	515	#endif
	516
4a4b8169 AZ	517	void cfg80211_cqm_config_free(struct wireless_dev *wdev);
4a4b8169 AZ	518
704232c2	519	#endif /* __NET_WIRELESS_CORE_H */