net/wireless/core.h - linux - Git at Google


            
            /* SPDX-License-Identifier: GPL-2.0 */

            
            /*

            
             * Wireless configuration interface internals.

            
             *

            
             * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>

            
             * Copyright (C) 2018-2020 Intel Corporation

            
             */

            
            #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_block;


            	/* 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;


            	/* protected by RTNL only */

            
            	int num_running_ifaces;

            
            	int num_running_monitor_ifaces;

            
            	u64 cookie_counter;


            	/* 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 cfg80211_scan_request *int_scan_req;

            
            	struct sk_buff *scan_msg;

            
            	struct list_head sched_scan_req_list;

            
            	time64_t 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;


            	struct work_struct mgmt_registrations_update_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

            
            }


            static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)

            
            {

            
            	u64 r = ++rdev->cookie_counter;


            	if (WARN_ON(r == 0))

            
            		r = ++rdev->cookie_counter;


            	return r;

            
            }


            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);

            
            	if (bss->pub.transmitted_bss) {

            
            		bss = container_of(bss->pub.transmitted_bss,

            
            				   struct cfg80211_internal_bss, pub);

            
            		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);

            
            	if (bss->pub.transmitted_bss) {

            
            		bss = container_of(bss->pub.transmitted_bss,

            
            				   struct cfg80211_internal_bss, pub);

            
            		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);


            void cfg80211_init_wdev(struct wireless_dev *wdev);

            
            void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,

            
            			    struct wireless_dev *wdev);


            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,

            
            	EVENT_PORT_AUTHORIZED,

            
            };


            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 {

            
            			u8 bssid[ETH_ALEN];

            
            		} pa;

            
            	};

            
            };


            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[];

            
            };


            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);

            
            void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,

            
            				     struct ieee80211_channel *channel);


            /* 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_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, bool multicast_rx,

            
            				struct netlink_ext_ack *extack);

            
            void cfg80211_mgmt_registrations_update_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);

            
            void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid);

            
            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);

            
            bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,

            
            			    int key_idx, bool pairwise);

            
            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);


            int cfg80211_scan(struct cfg80211_registered_device *rdev);


            extern struct work_struct cfg80211_disconnect_work;


            /**

            
             * 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: true if all channels available and at least

            
             *	   one channel requires 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);


            struct cfg80211_internal_bss *

            
            cfg80211_bss_update(struct cfg80211_registered_device *rdev,

            
            		    struct cfg80211_internal_bss *tmp,

            
            		    bool signal_valid, unsigned long ts);

            
            #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);


            void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);

            
            void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);

            
            void cfg80211_pmsr_free_wk(struct work_struct *work);


            #endif /* __NET_WIRELESS_CORE_H */
	/* SPDX-License-Identifier: GPL-2.0 */
	/*
	* Wireless configuration interface internals.
	*
	* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
	* Copyright (C) 2018-2020 Intel Corporation
	*/
	#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_block;

	/* 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;

	/* protected by RTNL only */
	int num_running_ifaces;
	int num_running_monitor_ifaces;
	u64 cookie_counter;

	/* 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 cfg80211_scan_request *int_scan_req;
	struct sk_buff *scan_msg;
	struct list_head sched_scan_req_list;
	time64_t 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;

	struct work_struct mgmt_registrations_update_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
	}

	static inline u64 cfg80211_assign_cookie(struct cfg80211_registered_device *rdev)
	{
	u64 r = ++rdev->cookie_counter;

	if (WARN_ON(r == 0))
	r = ++rdev->cookie_counter;

	return r;
	}

	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);
	if (bss->pub.transmitted_bss) {
	bss = container_of(bss->pub.transmitted_bss,
	struct cfg80211_internal_bss, pub);
	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);
	if (bss->pub.transmitted_bss) {
	bss = container_of(bss->pub.transmitted_bss,
	struct cfg80211_internal_bss, pub);
	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);

	void cfg80211_init_wdev(struct wireless_dev *wdev);
	void cfg80211_register_wdev(struct cfg80211_registered_device *rdev,
	struct wireless_dev *wdev);

	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,
	EVENT_PORT_AUTHORIZED,
	};

	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 {
	u8 bssid[ETH_ALEN];
	} pa;
	};
	};

	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[];
	};

	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);
	void cfg80211_update_assoc_bss_entry(struct wireless_dev *wdev,
	struct ieee80211_channel *channel);

	/* 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_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, bool multicast_rx,
	struct netlink_ext_ack *extack);
	void cfg80211_mgmt_registrations_update_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);
	void __cfg80211_port_authorized(struct wireless_dev wdev, const u8 bssid);
	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);
	bool cfg80211_valid_key_idx(struct cfg80211_registered_device *rdev,
	int key_idx, bool pairwise);
	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);

	int cfg80211_scan(struct cfg80211_registered_device *rdev);

	extern struct work_struct cfg80211_disconnect_work;

	/**
	* 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: true if all channels available and at least
	* one channel requires 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);

	struct cfg80211_internal_bss *
	cfg80211_bss_update(struct cfg80211_registered_device *rdev,
	struct cfg80211_internal_bss *tmp,
	bool signal_valid, unsigned long ts);
	#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);

	void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
	void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
	void cfg80211_pmsr_free_wk(struct work_struct *work);

	#endif /* __NET_WIRELESS_CORE_H */