[linux-block.git] / net / wireless / core.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * 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 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 work_struct sched_scan_res_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_wk(struct work_struct *work);
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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
704232c2 JB	2	/*
	3	* Wireless configuration interface internals.
	4	*
5f2aa25e	5	* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
704232c2 JB	6	*/
	7	#ifndef __NET_WIRELESS_CORE_H
	8	#define __NET_WIRELESS_CORE_H
704232c2 JB	9	#include <linux/list.h>
704232c2 JB	10	#include <linux/netdevice.h>
2a519311	11	#include <linux/rbtree.h>
1ac61302	12	#include <linux/debugfs.h>
1f87f7d3 JB	13	#include <linux/rfkill.h>
1f87f7d3 JB	14	#include <linux/workqueue.h>
c5a7e582	15	#include <linux/rtnetlink.h>
704232c2	16	#include <net/genetlink.h>
704232c2	17	#include <net/cfg80211.h>
3f2355cb	18	#include "reg.h"
704232c2	19
f4173766 JB	20
	21	#define WIPHY_IDX_INVALID -1
	22
704232c2	23	struct cfg80211_registered_device {
3dcf670b	24	const struct cfg80211_ops *ops;
704232c2	25	struct list_head list;
704232c2	26
1f87f7d3 JB	27	/* rfkill support */
	28	struct rfkill_ops rfkill_ops;
	29	struct rfkill *rfkill;
	30	struct work_struct rfkill_sync;
	31
3f2355cb LR	32	/* ISO / IEC 3166 alpha2 for which this device is receiving
	33	* country IEs on, this can help disregard country IEs from APs
	34	* on the same alpha2 quickly. The alpha2 may differ from
	35	* cfg80211_regdomain's alpha2 when an intersection has occurred.
	36	* If the AP is reconfigured this can also be used to tell us if
	37	* the country on the country IE changed. */
	38	char country_ie_alpha2[2];
	39
b0d7aa59 JD	40	/*
	41	* the driver requests the regulatory core to set this regulatory
	42	* domain as the wiphy's. Only used for %REGULATORY_WIPHY_SELF_MANAGED
	43	* devices using the regulatory_set_wiphy_regd() API
	44	*/
	45	const struct ieee80211_regdomain *requested_regd;
	46
3f2355cb LR	47	/* If a Country IE has been received this tells us the environment
	48	* which its telling us its in. This defaults to ENVIRON_ANY */
	49	enum environment_cap env;
	50
704232c2	51	/* wiphy index, internal only */
b5850a7a	52	int wiphy_idx;
704232c2	53
53873f13	54	/* protected by RTNL */
89a54e48	55	int devlist_generation, wdev_id;
8b9b2f06	56	int opencount;
ad002395	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
33d8783c JB	62	struct list_head mlme_unreg;
	63	spinlock_t mlme_unreg_lock;
	64	struct work_struct mlme_unreg_wk;
	65
c5a7e582	66	/* protected by RTNL only */
dbbae26a MK	67	int num_running_ifaces;
	68	int num_running_monitor_ifaces;
	69
2a519311 JB	70	/* BSSes/scanning */
	71	spinlock_t bss_lock;
	72	struct list_head bss_list;
	73	struct rb_root bss_tree;
	74	u32 bss_generation;
9853a55e	75	u32 bss_entries;
2a519311	76	struct cfg80211_scan_request scan_req; / protected by RTNL */
f9d15d16	77	struct sk_buff *scan_msg;
ca986ad9	78	struct list_head sched_scan_req_list;
cb3a8eec	79	unsigned long suspend_at;
667503dd	80	struct work_struct scan_done_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	95	struct work_struct sched_scan_stop_wk;
b34939b9	96	struct work_struct sched_scan_res_wk;
93a1e86c	97
89766727 VT	98	struct cfg80211_chan_def radar_chandef;
	99	struct work_struct propagate_radar_detect_wk;
	100
	101	struct cfg80211_chan_def cac_done_chandef;
	102	struct work_struct propagate_cac_done_wk;
	103
704232c2 JB	104	/* must be last because of the way we do wiphy_priv(),
704232c2 JB	105	* and it should at least be aligned to NETDEV_ALIGN */
1c06ef98	106	struct wiphy wiphy __aligned(NETDEV_ALIGN);
704232c2 JB	107	};
	108
	109	static inline
f26cbf40	110	struct cfg80211_registered_device wiphy_to_rdev(struct wiphy wiphy)
704232c2 JB	111	{
	112	BUG_ON(!wiphy);
	113	return container_of(wiphy, struct cfg80211_registered_device, wiphy);
	114	}
	115
ff1b6e69 JB	116	static inline void
	117	cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
	118	{
6abb9cb9	119	#ifdef CONFIG_PM
ff1b6e69 JB	120	int i;
ff1b6e69 JB	121
6abb9cb9	122	if (!rdev->wiphy.wowlan_config)
ff1b6e69	123	return;
6abb9cb9 JB	124	for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
	125	kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
	126	kfree(rdev->wiphy.wowlan_config->patterns);
	127	if (rdev->wiphy.wowlan_config->tcp &&
	128	rdev->wiphy.wowlan_config->tcp->sock)
	129	sock_release(rdev->wiphy.wowlan_config->tcp->sock);
	130	kfree(rdev->wiphy.wowlan_config->tcp);
8cd4d456	131	kfree(rdev->wiphy.wowlan_config->nd_config);
6abb9cb9 JB	132	kfree(rdev->wiphy.wowlan_config);
6abb9cb9 JB	133	#endif
ff1b6e69	134	}
e60d7443 AB	135
e60d7443 AB	136	extern struct workqueue_struct *cfg80211_wq;
79c97e97	137	extern struct list_head cfg80211_rdev_list;
f5ea9120	138	extern int cfg80211_rdev_list_generation;
704232c2	139
2a519311 JB	140	struct cfg80211_internal_bss {
2a519311 JB	141	struct list_head list;
776b3580	142	struct list_head hidden_list;
2a519311	143	struct rb_node rbn;
6e19bc4b	144	u64 ts_boottime;
2a519311	145	unsigned long ts;
776b3580	146	unsigned long refcount;
19957bb3	147	atomic_t hold;
a08c1c1a	148
1d76250b AS	149	/* time at the start of the reception of the first octet of the
	150	* timestamp field of the last beacon/probe received for this BSS.
	151	* The time is the TSF of the BSS specified by %parent_bssid.
	152	*/
	153	u64 parent_tsf;
	154
	155	/* the BSS according to which %parent_tsf is set. This is set to
	156	* the BSS that the interface that requested the scan was connected to
	157	* when the beacon/probe was received.
	158	*/
	159	u8 parent_bssid[ETH_ALEN] __aligned(2);
	160
2a519311 JB	161	/* must be last because of priv member */
	162	struct cfg80211_bss pub;
	163	};
	164
19957bb3 JB	165	static inline struct cfg80211_internal_bss bss_from_pub(struct cfg80211_bss pub)
	166	{
	167	return container_of(pub, struct cfg80211_internal_bss, pub);
	168	}
	169
	170	static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
	171	{
	172	atomic_inc(&bss->hold);
	173	}
	174
	175	static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
	176	{
	177	int r = atomic_dec_return(&bss->hold);
	178	WARN_ON(r < 0);
	179	}
	180
	181
79c97e97	182	struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
806a9e39 LR	183	int get_wiphy_idx(struct wiphy *wiphy);
806a9e39 LR	184
806a9e39 LR	185	struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
806a9e39 LR	186
463d0183 JB	187	int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
463d0183 JB	188	struct net *net);
55682965	189
667503dd JB	190	static inline void wdev_lock(struct wireless_dev *wdev)
	191	__acquires(wdev)
	192	{
	193	mutex_lock(&wdev->mtx);
	194	__acquire(wdev->mtx);
	195	}
	196
	197	static inline void wdev_unlock(struct wireless_dev *wdev)
	198	__releases(wdev)
	199	{
	200	__release(wdev->mtx);
	201	mutex_unlock(&wdev->mtx);
	202	}
	203
46a5ebaf	204	#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
667503dd	205
dbbae26a MK	206	static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
dbbae26a MK	207	{
c5a7e582	208	ASSERT_RTNL();
dbbae26a MK	209
	210	return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
	211	rdev->num_running_ifaces > 0;
	212	}
	213
667503dd JB	214	enum cfg80211_event_type {
	215	EVENT_CONNECT_RESULT,
	216	EVENT_ROAMED,
	217	EVENT_DISCONNECTED,
	218	EVENT_IBSS_JOINED,
f04c2203	219	EVENT_STOPPED,
667503dd JB	220	};
	221
	222	struct cfg80211_event {
	223	struct list_head list;
	224	enum cfg80211_event_type type;
	225
	226	union {
5349a0f7	227	struct cfg80211_connect_resp_params cr;
29ce6ecb	228	struct cfg80211_roam_info rm;
667503dd JB	229	struct {
	230	const u8 *ie;
	231	size_t ie_len;
	232	u16 reason;
80279fb7	233	bool locally_generated;
667503dd JB	234	} dc;
	235	struct {
	236	u8 bssid[ETH_ALEN];
fe94f3a4	237	struct ieee80211_channel *channel;
667503dd JB	238	} ij;
	239	};
	240	};
	241
fffd0934	242	struct cfg80211_cached_keys {
b8676221 DS	243	struct key_params params[CFG80211_MAX_WEP_KEYS];
b8676221 DS	244	u8 data[CFG80211_MAX_WEP_KEYS][WLAN_KEY_LEN_WEP104];
89b706fb	245	int def;
fffd0934 JB	246	};
fffd0934 JB	247
26ab9a0c MK	248	enum cfg80211_chan_mode {
	249	CHAN_MODE_UNDEFINED,
	250	CHAN_MODE_SHARED,
	251	CHAN_MODE_EXCLUSIVE,
	252	};
	253
37c73b5f BG	254	struct cfg80211_beacon_registration {
	255	struct list_head list;
	256	u32 nlportid;
	257	};
667503dd	258
4a4b8169 AZ	259	struct cfg80211_cqm_config {
	260	u32 rssi_hyst;
	261	s32 last_rssi_event_value;
	262	int n_rssi_thresholds;
	263	s32 rssi_thresholds[0];
	264	};
	265
78f22b6a JB	266	void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
78f22b6a JB	267
704232c2	268	/* free object */
c1b1203d	269	void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
704232c2	270
c1b1203d JP	271	int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
c1b1203d JP	272	char *newname);
55682965	273
8318d78a	274	void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
8318d78a	275
1b8ec87a ZG	276	void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
1b8ec87a ZG	277	void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
cb3a8eec	278	unsigned long age_secs);
2a519311	279
04a773ad JB	280	/* IBSS */
	281	int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
	282	struct net_device *dev,
fffd0934 JB	283	struct cfg80211_ibss_params *params,
fffd0934 JB	284	struct cfg80211_cached_keys *connkeys);
9d308429	285	void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
98d3a7ca JB	286	int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
98d3a7ca JB	287	struct net_device *dev, bool nowext);
04a773ad	288	int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
9d308429	289	struct net_device *dev, bool nowext);
fe94f3a4 AQ	290	void __cfg80211_ibss_joined(struct net_device dev, const u8 bssid,
fe94f3a4 AQ	291	struct ieee80211_channel *channel);
fffd0934 JB	292	int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
fffd0934 JB	293	struct wireless_dev *wdev);
04a773ad	294
29cbe68c JB	295	/* mesh */
29cbe68c JB	296	extern const struct mesh_config default_mesh_config;
c80d545d	297	extern const struct mesh_setup default_mesh_setup;
29cbe68c JB	298	int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	299	struct net_device *dev,
cc1d2806	300	struct mesh_setup *setup,
29cbe68c JB	301	const struct mesh_config *conf);
	302	int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
	303	struct net_device *dev,
cc1d2806	304	struct mesh_setup *setup,
29cbe68c	305	const struct mesh_config *conf);
f04c2203 MK	306	int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
f04c2203 MK	307	struct net_device *dev);
29cbe68c JB	308	int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
29cbe68c JB	309	struct net_device *dev);
683b6d3b JB	310	int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
	311	struct wireless_dev *wdev,
	312	struct cfg80211_chan_def *chandef);
29cbe68c	313
6e0bd6c3 RL	314	/* OCB */
	315	int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	316	struct net_device *dev,
	317	struct ocb_setup *setup);
	318	int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
	319	struct net_device *dev,
	320	struct ocb_setup *setup);
	321	int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	322	struct net_device *dev);
	323	int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
	324	struct net_device *dev);
	325
60771780	326	/* AP */
f04c2203 MK	327	int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
f04c2203 MK	328	struct net_device *dev, bool notify);
60771780	329	int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
7c8d5e03	330	struct net_device *dev, bool notify);
60771780	331
19957bb3 JB	332	/* MLME */
19957bb3 JB	333	int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
91bf9b26 JB	334	struct net_device *dev,
	335	struct ieee80211_channel *chan,
	336	enum nl80211_auth_type auth_type,
	337	const u8 *bssid,
19957bb3	338	const u8 *ssid, int ssid_len,
fffd0934	339	const u8 *ie, int ie_len,
e39e5b5e	340	const u8 *key, int key_len, int key_idx,
11b6b5a4	341	const u8 *auth_data, int auth_data_len);
19957bb3	342	int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
f62fab73 JB	343	struct net_device *dev,
	344	struct ieee80211_channel *chan,
	345	const u8 *bssid,
3e5d7649	346	const u8 *ssid, int ssid_len,
f62fab73	347	struct cfg80211_assoc_request *req);
19957bb3 JB	348	int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
19957bb3 JB	349	struct net_device dev, const u8 bssid,
d5cdfacb JM	350	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	351	bool local_state_change);
19957bb3 JB	352	int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
19957bb3 JB	353	struct net_device dev, const u8 bssid,
d5cdfacb JM	354	const u8 *ie, int ie_len, u16 reason,
d5cdfacb JM	355	bool local_state_change);
19957bb3 JB	356	void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
19957bb3 JB	357	struct net_device *dev);
2e161f78 JB	358	int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
	359	u16 frame_type, const u8 *match_data,
	360	int match_len);
33d8783c	361	void cfg80211_mlme_unreg_wk(struct work_struct *wk);
2e161f78 JB	362	void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
	363	void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
	364	int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
71bbc994	365	struct wireless_dev *wdev,
b176e629 AO	366	struct cfg80211_mgmt_tx_params *params,
b176e629 AO	367	u64 *cookie);
7e7c8926 BG	368	void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
7e7c8926 BG	369	const struct ieee80211_ht_cap *ht_capa_mask);
ee2aca34 JB	370	void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
ee2aca34 JB	371	const struct ieee80211_vht_cap *vht_capa_mask);
19957bb3	372
ceca7b71	373	/* SME events */
b23aa676 SO	374	int cfg80211_connect(struct cfg80211_registered_device *rdev,
b23aa676 SO	375	struct net_device *dev,
fffd0934	376	struct cfg80211_connect_params *connect,
83739b03 JB	377	struct cfg80211_cached_keys *connkeys,
83739b03 JB	378	const u8 *prev_bssid);
5349a0f7 VK	379	void __cfg80211_connect_result(struct net_device *dev,
	380	struct cfg80211_connect_resp_params *params,
	381	bool wextev);
ceca7b71 JB	382	void __cfg80211_disconnected(struct net_device dev, const u8 ie,
ceca7b71 JB	383	size_t ie_len, u16 reason, bool from_ap);
b23aa676	384	int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
f2129354 JB	385	struct net_device *dev, u16 reason,
f2129354 JB	386	bool wextev);
ed9d0102	387	void __cfg80211_roamed(struct wireless_dev *wdev,
29ce6ecb	388	struct cfg80211_roam_info *info);
fffd0934 JB	389	int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
fffd0934 JB	390	struct wireless_dev *wdev);
bd2522b1	391	void cfg80211_autodisconnect_wk(struct work_struct *work);
b23aa676	392
ceca7b71	393	/* SME implementation */
6829c878	394	void cfg80211_conn_work(struct work_struct *work);
ceca7b71 JB	395	void cfg80211_sme_scan_done(struct net_device *dev);
	396	bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
	397	void cfg80211_sme_rx_auth(struct wireless_dev wdev, const u8 buf, size_t len);
	398	void cfg80211_sme_disassoc(struct wireless_dev *wdev);
	399	void cfg80211_sme_deauth(struct wireless_dev *wdev);
	400	void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
	401	void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
e6f462df	402	void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev);
6829c878	403
08645126	404	/* internal helpers */
38ba3c57	405	bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
fffd0934 JB	406	int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
fffd0934 JB	407	struct key_params *params, int key_idx,
e31b8213	408	bool pairwise, const u8 *mac_addr);
667503dd	409	void __cfg80211_scan_done(struct work_struct *wk);
f9d15d16 JB	410	void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
f9d15d16 JB	411	bool send_message);
ca986ad9 AVS	412	void cfg80211_add_sched_scan_req(struct cfg80211_registered_device *rdev,
	413	struct cfg80211_sched_scan_request *req);
	414	int cfg80211_sched_scan_req_possible(struct cfg80211_registered_device *rdev,
	415	bool want_multi);
b34939b9	416	void cfg80211_sched_scan_results_wk(struct work_struct *work);
ca986ad9 AVS	417	int cfg80211_stop_sched_scan_req(struct cfg80211_registered_device *rdev,
	418	struct cfg80211_sched_scan_request *req,
	419	bool driver_initiated);
807f8a8c	420	int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
ca986ad9	421	u64 reqid, bool driver_initiated);
fffd0934	422	void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
3d54d255 JB	423	int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
3d54d255 JB	424	struct net_device *dev, enum nl80211_iftype ntype,
818a986e	425	struct vif_params *params);
3d54d255	426	void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
1f6fc43e	427	void cfg80211_process_wdev_events(struct wireless_dev *wdev);
08645126	428
4787cfa0 RM	429	bool cfg80211_does_bw_fit_range(const struct ieee80211_freq_range *freq_range,
	430	u32 center_freq_khz, u32 bw_khz);
	431
fe7c3a1f JD	432	/**
	433	* cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
	434	* @wiphy: the wiphy to validate against
	435	* @chandef: the channel definition to check
	436	*
	437	* Checks if chandef is usable and we can/need start CAC on such channel.
	438	*
	439	* Return: Return true if all channels available and at least
	440	* one channel require CAC (NL80211_DFS_USABLE)
	441	*/
	442	bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
	443	const struct cfg80211_chan_def *chandef);
	444
04f39047 SW	445	void cfg80211_set_dfs_state(struct wiphy *wiphy,
	446	const struct cfg80211_chan_def *chandef,
	447	enum nl80211_dfs_state dfs_state);
	448
	449	void cfg80211_dfs_channels_update_work(struct work_struct *work);
	450
31559f35 JD	451	unsigned int
	452	cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
	453	const struct cfg80211_chan_def *chandef);
04f39047	454
b35a51c7 VT	455	void cfg80211_sched_dfs_chan_update(struct cfg80211_registered_device *rdev);
	456
	457	bool cfg80211_any_wiphy_oper_chan(struct wiphy *wiphy,
	458	struct ieee80211_channel *chan);
	459
	460	bool cfg80211_beaconing_iface_active(struct wireless_dev *wdev);
	461
	462	bool cfg80211_is_sub_chan(struct cfg80211_chan_def *chandef,
	463	struct ieee80211_channel *chan);
	464
04f39047 SW	465	static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
	466	{
	467	unsigned long end = jiffies;
	468
	469	if (end >= start)
	470	return jiffies_to_msecs(end - start);
	471
0ce12026	472	return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
04f39047 SW	473	}
04f39047 SW	474
26ab9a0c	475	void
8e95ea49	476	cfg80211_get_chan_state(struct wireless_dev *wdev,
26ab9a0c	477	struct ieee80211_channel **chan,
9e0e2961 MK	478	enum cfg80211_chan_mode *chanmode,
9e0e2961 MK	479	u8 *radar_detect);
26ab9a0c	480
e8c9bd5b	481	int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
683b6d3b	482	struct cfg80211_chan_def *chandef);
59bbb6f7	483
34850ab2 JB	484	int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
	485	const u8 *rates, unsigned int n_rates,
	486	u32 *mask);
	487
56d1893d	488	int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
0c317a02	489	enum nl80211_iftype iftype, u32 beacon_int);
56d1893d	490
dbbae26a MK	491	void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
	492	enum nl80211_iftype iftype, int num);
	493
f04c2203 MK	494	void __cfg80211_leave(struct cfg80211_registered_device *rdev,
f04c2203 MK	495	struct wireless_dev *wdev);
81256969 SG	496	void cfg80211_leave(struct cfg80211_registered_device *rdev,
	497	struct wireless_dev *wdev);
	498
f9f47529 JB	499	void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
	500	struct wireless_dev *wdev);
	501
cb3b7d87 AB	502	void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
	503	struct wireless_dev *wdev);
	504
d4e50c59 MK	505	#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
d4e50c59 MK	506
f7969969 JB	507	#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
	508	#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
	509	#else
	510	/*
	511	* Trick to enable using it as a condition,
	512	* and also not give a warning when it's
	513	* not used that way.
	514	*/
	515	#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
	516	#endif
	517
4a4b8169 AZ	518	void cfg80211_cqm_config_free(struct wireless_dev *wdev);
4a4b8169 AZ	519
704232c2	520	#endif /* __NET_WIRELESS_CORE_H */