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Johannes Berg704232c2007-04-23 12:20:05 -07001/*
2 * Wireless configuration interface internals.
3 *
Johannes Berg5f2aa252010-01-17 15:49:02 +01004 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
Johannes Berg704232c2007-04-23 12:20:05 -07005 */
6#ifndef __NET_WIRELESS_CORE_H
7#define __NET_WIRELESS_CORE_H
Johannes Berg704232c2007-04-23 12:20:05 -07008#include <linux/list.h>
9#include <linux/netdevice.h>
Johannes Berg2a519312009-02-10 21:25:55 +010010#include <linux/rbtree.h>
Luis R. Rodriguez1ac61302009-05-02 00:37:21 -040011#include <linux/debugfs.h>
Johannes Berg1f87f7d2009-06-02 13:01:41 +020012#include <linux/rfkill.h>
13#include <linux/workqueue.h>
Johannes Bergc5a7e582012-07-04 13:28:18 +020014#include <linux/rtnetlink.h>
Johannes Berg704232c2007-04-23 12:20:05 -070015#include <net/genetlink.h>
Johannes Berg704232c2007-04-23 12:20:05 -070016#include <net/cfg80211.h>
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -080017#include "reg.h"
Johannes Berg704232c2007-04-23 12:20:05 -070018
Johannes Bergf4173762012-12-03 18:23:37 +010019
20#define WIPHY_IDX_INVALID -1
21
Johannes Berg704232c2007-04-23 12:20:05 -070022struct cfg80211_registered_device {
David Kilroy3dcf6702009-05-16 23:13:46 +010023 const struct cfg80211_ops *ops;
Johannes Berg704232c2007-04-23 12:20:05 -070024 struct list_head list;
Johannes Berg704232c2007-04-23 12:20:05 -070025
Johannes Berg1f87f7d2009-06-02 13:01:41 +020026 /* rfkill support */
27 struct rfkill_ops rfkill_ops;
28 struct rfkill *rfkill;
29 struct work_struct rfkill_sync;
30
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -080031 /* 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
Jonathan Doronb0d7aa52014-12-15 19:26:00 +020039 /*
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
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -080046 /* 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
Johannes Berg704232c2007-04-23 12:20:05 -070050 /* wiphy index, internal only */
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -050051 int wiphy_idx;
Johannes Berg704232c2007-04-23 12:20:05 -070052
Johannes Berg5fe231e2013-05-08 21:45:15 +020053 /* associated wireless interfaces, protected by rtnl or RCU */
Johannes Berg89a54e42012-06-15 14:33:17 +020054 struct list_head wdev_list;
55 int devlist_generation, wdev_id;
Johannes Bergad002392009-08-18 19:51:57 +020056 int opencount; /* also protected by devlist_mtx */
57 wait_queue_head_t dev_wait;
Johannes Berg704232c2007-04-23 12:20:05 -070058
Ben Greear37c73b52012-10-26 14:49:25 -070059 struct list_head beacon_registrations;
60 spinlock_t beacon_registrations_lock;
Johannes Berg5e760232011-11-04 11:18:17 +010061
Johannes Berg33d87832015-06-23 17:47:05 +020062 struct list_head mlme_unreg;
63 spinlock_t mlme_unreg_lock;
64 struct work_struct mlme_unreg_wk;
65
Johannes Bergc5a7e582012-07-04 13:28:18 +020066 /* protected by RTNL only */
Michal Kaziordbbae262012-06-29 12:47:01 +020067 int num_running_ifaces;
68 int num_running_monitor_ifaces;
69
Johannes Berg2a519312009-02-10 21:25:55 +010070 /* BSSes/scanning */
71 spinlock_t bss_lock;
72 struct list_head bss_list;
73 struct rb_root bss_tree;
74 u32 bss_generation;
75 struct cfg80211_scan_request *scan_req; /* protected by RTNL */
Johannes Bergf9d15d12014-01-22 11:14:19 +020076 struct sk_buff *scan_msg;
Jukka Rissanen31a60ed2014-12-15 13:25:38 +020077 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
Dan Williamscb3a8ee2009-02-11 17:14:43 -050078 unsigned long suspend_at;
Johannes Berg667503d2009-07-07 03:56:11 +020079 struct work_struct scan_done_wk;
Luciano Coelho807f8a82011-05-11 17:09:35 +030080 struct work_struct sched_scan_results_wk;
Johannes Berg2a519312009-02-10 21:25:55 +010081
Johannes Bergad7e7182013-11-13 13:37:47 +010082 struct genl_info *cur_cmd_info;
Johannes Bergaff89a92009-07-01 21:26:51 +020083
Johannes Berg6829c8782009-07-02 09:13:27 +020084 struct work_struct conn_work;
Johannes Berg667503d2009-07-07 03:56:11 +020085 struct work_struct event_work;
Johannes Berg6829c8782009-07-02 09:13:27 +020086
Simon Wunderlich04f39042013-02-08 18:16:19 +010087 struct delayed_work dfs_update_channels_wk;
88
Arend van Spriel5de17982013-04-18 15:49:00 +020089 /* netlink port which started critical protocol (0 means not started) */
90 u32 crit_proto_nlportid;
91
Amitkumar Karwarbe29b992013-06-28 11:51:26 -070092 struct cfg80211_coalesce *coalesce;
93
Johannes Berg78f22b62014-03-24 17:57:27 +010094 spinlock_t destroy_list_lock;
95 struct list_head destroy_list;
96 struct work_struct destroy_work;
97
Jukka Rissanen93a1e862014-12-15 13:25:39 +020098 struct work_struct sched_scan_stop_wk;
99
Johannes Berg704232c2007-04-23 12:20:05 -0700100 /* must be last because of the way we do wiphy_priv(),
101 * and it should at least be aligned to NETDEV_ALIGN */
Johannes Berg1c06ef92012-12-28 12:22:02 +0100102 struct wiphy wiphy __aligned(NETDEV_ALIGN);
Johannes Berg704232c2007-04-23 12:20:05 -0700103};
104
105static inline
Zhao, Gangf26cbf42014-04-21 12:53:03 +0800106struct cfg80211_registered_device *wiphy_to_rdev(struct wiphy *wiphy)
Johannes Berg704232c2007-04-23 12:20:05 -0700107{
108 BUG_ON(!wiphy);
109 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
110}
111
Johannes Bergff1b6e62011-05-04 15:37:28 +0200112static inline void
113cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
114{
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200115#ifdef CONFIG_PM
Johannes Bergff1b6e62011-05-04 15:37:28 +0200116 int i;
117
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200118 if (!rdev->wiphy.wowlan_config)
Johannes Bergff1b6e62011-05-04 15:37:28 +0200119 return;
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200120 for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
121 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
122 kfree(rdev->wiphy.wowlan_config->patterns);
123 if (rdev->wiphy.wowlan_config->tcp &&
124 rdev->wiphy.wowlan_config->tcp->sock)
125 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
126 kfree(rdev->wiphy.wowlan_config->tcp);
Luciano Coelho8cd4d452014-09-17 11:55:28 +0300127 kfree(rdev->wiphy.wowlan_config->nd_config);
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200128 kfree(rdev->wiphy.wowlan_config);
129#endif
Johannes Bergff1b6e62011-05-04 15:37:28 +0200130}
Alban Browaeyse60d7442009-11-25 15:13:00 +0100131
132extern struct workqueue_struct *cfg80211_wq;
Johannes Berg79c97e92009-07-07 03:56:12 +0200133extern struct list_head cfg80211_rdev_list;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200134extern int cfg80211_rdev_list_generation;
Johannes Berg704232c2007-04-23 12:20:05 -0700135
Johannes Berg2a519312009-02-10 21:25:55 +0100136struct cfg80211_internal_bss {
137 struct list_head list;
Johannes Berg776b3582013-02-01 02:06:18 +0100138 struct list_head hidden_list;
Johannes Berg2a519312009-02-10 21:25:55 +0100139 struct rb_node rbn;
Dmitry Shmidt6e19bc42015-10-07 11:32:53 +0200140 u64 ts_boottime;
Johannes Berg2a519312009-02-10 21:25:55 +0100141 unsigned long ts;
Johannes Berg776b3582013-02-01 02:06:18 +0100142 unsigned long refcount;
Johannes Berg19957bb2009-07-02 17:20:43 +0200143 atomic_t hold;
Kalle Valoa08c1c12009-03-22 21:57:28 +0200144
Johannes Berg2a519312009-02-10 21:25:55 +0100145 /* must be last because of priv member */
146 struct cfg80211_bss pub;
147};
148
Johannes Berg19957bb2009-07-02 17:20:43 +0200149static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
150{
151 return container_of(pub, struct cfg80211_internal_bss, pub);
152}
153
154static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
155{
156 atomic_inc(&bss->hold);
157}
158
159static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
160{
161 int r = atomic_dec_return(&bss->hold);
162 WARN_ON(r < 0);
163}
164
165
Johannes Berg79c97e92009-07-07 03:56:12 +0200166struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500167int get_wiphy_idx(struct wiphy *wiphy);
168
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500169struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
170
Johannes Berg463d0182009-07-14 00:33:35 +0200171int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
172 struct net *net);
Johannes Berg55682962007-09-20 13:09:35 -0400173
Johannes Berg667503d2009-07-07 03:56:11 +0200174static inline void wdev_lock(struct wireless_dev *wdev)
175 __acquires(wdev)
176{
177 mutex_lock(&wdev->mtx);
178 __acquire(wdev->mtx);
179}
180
181static inline void wdev_unlock(struct wireless_dev *wdev)
182 __releases(wdev)
183{
184 __release(wdev->mtx);
185 mutex_unlock(&wdev->mtx);
186}
187
Johannes Berg46a5eba2010-09-15 13:28:15 +0200188#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
Johannes Berg667503d2009-07-07 03:56:11 +0200189
Michal Kaziordbbae262012-06-29 12:47:01 +0200190static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
191{
Johannes Bergc5a7e582012-07-04 13:28:18 +0200192 ASSERT_RTNL();
Michal Kaziordbbae262012-06-29 12:47:01 +0200193
194 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
195 rdev->num_running_ifaces > 0;
196}
197
Johannes Berg667503d2009-07-07 03:56:11 +0200198enum cfg80211_event_type {
199 EVENT_CONNECT_RESULT,
200 EVENT_ROAMED,
201 EVENT_DISCONNECTED,
202 EVENT_IBSS_JOINED,
Michal Kaziorf04c2202014-04-09 15:11:01 +0200203 EVENT_STOPPED,
Johannes Berg667503d2009-07-07 03:56:11 +0200204};
205
206struct cfg80211_event {
207 struct list_head list;
208 enum cfg80211_event_type type;
209
210 union {
211 struct {
212 u8 bssid[ETH_ALEN];
213 const u8 *req_ie;
214 const u8 *resp_ie;
215 size_t req_ie_len;
216 size_t resp_ie_len;
217 u16 status;
218 } cr;
219 struct {
Johannes Berg667503d2009-07-07 03:56:11 +0200220 const u8 *req_ie;
221 const u8 *resp_ie;
222 size_t req_ie_len;
223 size_t resp_ie_len;
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530224 struct cfg80211_bss *bss;
Johannes Berg667503d2009-07-07 03:56:11 +0200225 } rm;
226 struct {
227 const u8 *ie;
228 size_t ie_len;
229 u16 reason;
Johannes Berg80279fb2015-05-22 16:22:20 +0200230 bool locally_generated;
Johannes Berg667503d2009-07-07 03:56:11 +0200231 } dc;
232 struct {
233 u8 bssid[ETH_ALEN];
Antonio Quartullife94f3a2014-01-29 17:53:43 +0100234 struct ieee80211_channel *channel;
Johannes Berg667503d2009-07-07 03:56:11 +0200235 } ij;
236 };
237};
238
Johannes Bergfffd0932009-07-08 14:22:54 +0200239struct cfg80211_cached_keys {
240 struct key_params params[6];
241 u8 data[6][WLAN_MAX_KEY_LEN];
242 int def, defmgmt;
243};
244
Michal Kazior26ab9a02012-06-29 12:47:00 +0200245enum cfg80211_chan_mode {
246 CHAN_MODE_UNDEFINED,
247 CHAN_MODE_SHARED,
248 CHAN_MODE_EXCLUSIVE,
249};
250
Ben Greear37c73b52012-10-26 14:49:25 -0700251struct cfg80211_beacon_registration {
252 struct list_head list;
253 u32 nlportid;
254};
Johannes Berg667503d2009-07-07 03:56:11 +0200255
Johannes Berg78f22b62014-03-24 17:57:27 +0100256struct cfg80211_iface_destroy {
257 struct list_head list;
258 u32 nlportid;
259};
260
261void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
262
Johannes Berg704232c2007-04-23 12:20:05 -0700263/* free object */
Joe Perchesc1b12032013-10-18 13:48:25 -0700264void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700265
Joe Perchesc1b12032013-10-18 13:48:25 -0700266int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
267 char *newname);
Johannes Berg55682962007-09-20 13:09:35 -0400268
Johannes Berg8318d782008-01-24 19:38:38 +0100269void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
Johannes Berg8318d782008-01-24 19:38:38 +0100270
Zhao, Gang1b8ec872014-04-21 12:53:02 +0800271void cfg80211_bss_expire(struct cfg80211_registered_device *rdev);
272void cfg80211_bss_age(struct cfg80211_registered_device *rdev,
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500273 unsigned long age_secs);
Johannes Berg2a519312009-02-10 21:25:55 +0100274
Johannes Berg04a773a2009-04-19 21:24:32 +0200275/* IBSS */
276int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
277 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200278 struct cfg80211_ibss_params *params,
279 struct cfg80211_cached_keys *connkeys);
Johannes Berg9d308422009-04-20 18:43:46 +0200280void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
Johannes Berg98d3a7c2009-11-18 13:03:43 +0100281int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
282 struct net_device *dev, bool nowext);
Johannes Berg04a773a2009-04-19 21:24:32 +0200283int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
Johannes Berg9d308422009-04-20 18:43:46 +0200284 struct net_device *dev, bool nowext);
Antonio Quartullife94f3a2014-01-29 17:53:43 +0100285void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
286 struct ieee80211_channel *channel);
Johannes Bergfffd0932009-07-08 14:22:54 +0200287int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
288 struct wireless_dev *wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +0200289
Johannes Berg29cbe682010-12-03 09:20:44 +0100290/* mesh */
291extern const struct mesh_config default_mesh_config;
Javier Cardonac80d5452010-12-16 17:37:49 -0800292extern const struct mesh_setup default_mesh_setup;
Johannes Berg29cbe682010-12-03 09:20:44 +0100293int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
294 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200295 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100296 const struct mesh_config *conf);
297int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
298 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200299 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100300 const struct mesh_config *conf);
Michal Kaziorf04c2202014-04-09 15:11:01 +0200301int __cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
302 struct net_device *dev);
Johannes Berg29cbe682010-12-03 09:20:44 +0100303int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
304 struct net_device *dev);
Johannes Berg683b6d32012-11-08 21:25:48 +0100305int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
306 struct wireless_dev *wdev,
307 struct cfg80211_chan_def *chandef);
Johannes Berg29cbe682010-12-03 09:20:44 +0100308
Rostislav Lisovy6e0bd6c2014-11-03 10:33:18 +0100309/* OCB */
310int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
311 struct net_device *dev,
312 struct ocb_setup *setup);
313int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
314 struct net_device *dev,
315 struct ocb_setup *setup);
316int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
317 struct net_device *dev);
318int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
319 struct net_device *dev);
320
Michal Kazior60771782012-06-29 12:46:56 +0200321/* AP */
Michal Kaziorf04c2202014-04-09 15:11:01 +0200322int __cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
323 struct net_device *dev, bool notify);
Michal Kazior60771782012-06-29 12:46:56 +0200324int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
Ilan Peer7c8d5e02014-02-25 15:33:38 +0200325 struct net_device *dev, bool notify);
Michal Kazior60771782012-06-29 12:46:56 +0200326
Johannes Berg19957bb2009-07-02 17:20:43 +0200327/* MLME */
328int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
Johannes Berg91bf9b22013-05-15 17:44:01 +0200329 struct net_device *dev,
330 struct ieee80211_channel *chan,
331 enum nl80211_auth_type auth_type,
332 const u8 *bssid,
Johannes Berg19957bb2009-07-02 17:20:43 +0200333 const u8 *ssid, int ssid_len,
Johannes Bergfffd0932009-07-08 14:22:54 +0200334 const u8 *ie, int ie_len,
Jouni Malinene39e5b52012-09-30 19:29:39 +0300335 const u8 *key, int key_len, int key_idx,
336 const u8 *sae_data, int sae_data_len);
Johannes Berg19957bb2009-07-02 17:20:43 +0200337int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
Johannes Bergf62fab72013-02-21 20:09:09 +0100338 struct net_device *dev,
339 struct ieee80211_channel *chan,
340 const u8 *bssid,
Johannes Berg3e5d7642009-07-07 14:37:26 +0200341 const u8 *ssid, int ssid_len,
Johannes Bergf62fab72013-02-21 20:09:09 +0100342 struct cfg80211_assoc_request *req);
Johannes Berg19957bb2009-07-02 17:20:43 +0200343int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
344 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300345 const u8 *ie, int ie_len, u16 reason,
346 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200347int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
348 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300349 const u8 *ie, int ie_len, u16 reason,
350 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200351void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
352 struct net_device *dev);
Johannes Berg2e161f72010-08-12 15:38:38 +0200353int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
354 u16 frame_type, const u8 *match_data,
355 int match_len);
Johannes Berg33d87832015-06-23 17:47:05 +0200356void cfg80211_mlme_unreg_wk(struct work_struct *wk);
Johannes Berg2e161f72010-08-12 15:38:38 +0200357void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
358void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
359int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
Johannes Berg71bbc992012-06-15 15:30:18 +0200360 struct wireless_dev *wdev,
Andrei Otcheretianskib176e622013-11-18 19:06:49 +0200361 struct cfg80211_mgmt_tx_params *params,
362 u64 *cookie);
Ben Greear7e7c8922011-11-18 11:31:59 -0800363void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
364 const struct ieee80211_ht_cap *ht_capa_mask);
Johannes Bergee2aca32013-02-21 17:36:01 +0100365void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
366 const struct ieee80211_vht_cap *vht_capa_mask);
Johannes Berg19957bb2009-07-02 17:20:43 +0200367
Johannes Bergceca7b72013-05-16 00:55:45 +0200368/* SME events */
Samuel Ortizb23aa672009-07-01 21:26:54 +0200369int cfg80211_connect(struct cfg80211_registered_device *rdev,
370 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200371 struct cfg80211_connect_params *connect,
Johannes Berg83739b02013-05-15 17:44:01 +0200372 struct cfg80211_cached_keys *connkeys,
373 const u8 *prev_bssid);
Johannes Bergceca7b72013-05-16 00:55:45 +0200374void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
375 const u8 *req_ie, size_t req_ie_len,
376 const u8 *resp_ie, size_t resp_ie_len,
377 u16 status, bool wextev,
378 struct cfg80211_bss *bss);
379void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
380 size_t ie_len, u16 reason, bool from_ap);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200381int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
Johannes Bergf2129352009-07-01 21:26:56 +0200382 struct net_device *dev, u16 reason,
383 bool wextev);
Jouni Malinened9d0102011-05-16 19:40:15 +0300384void __cfg80211_roamed(struct wireless_dev *wdev,
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530385 struct cfg80211_bss *bss,
Johannes Berg667503d2009-07-07 03:56:11 +0200386 const u8 *req_ie, size_t req_ie_len,
387 const u8 *resp_ie, size_t resp_ie_len);
Johannes Bergfffd0932009-07-08 14:22:54 +0200388int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
389 struct wireless_dev *wdev);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200390
Johannes Bergceca7b72013-05-16 00:55:45 +0200391/* SME implementation */
Johannes Berg6829c8782009-07-02 09:13:27 +0200392void cfg80211_conn_work(struct work_struct *work);
Johannes Bergceca7b72013-05-16 00:55:45 +0200393void cfg80211_sme_scan_done(struct net_device *dev);
394bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
395void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
396void cfg80211_sme_disassoc(struct wireless_dev *wdev);
397void cfg80211_sme_deauth(struct wireless_dev *wdev);
398void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
399void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
Johannes Berg6829c8782009-07-02 09:13:27 +0200400
Johannes Berg08645122009-05-11 13:54:58 +0200401/* internal helpers */
Jouni Malinen38ba3c52011-09-21 18:14:56 +0300402bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
Johannes Bergfffd0932009-07-08 14:22:54 +0200403int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
404 struct key_params *params, int key_idx,
Johannes Berge31b8212010-10-05 19:39:30 +0200405 bool pairwise, const u8 *mac_addr);
Johannes Berg667503d2009-07-07 03:56:11 +0200406void __cfg80211_scan_done(struct work_struct *wk);
Johannes Bergf9d15d12014-01-22 11:14:19 +0200407void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
408 bool send_message);
Luciano Coelho807f8a82011-05-11 17:09:35 +0300409void __cfg80211_sched_scan_results(struct work_struct *wk);
410int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
411 bool driver_initiated);
Johannes Bergfffd0932009-07-08 14:22:54 +0200412void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
Johannes Berg3d54d252009-08-21 14:51:05 +0200413int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
414 struct net_device *dev, enum nl80211_iftype ntype,
415 u32 *flags, struct vif_params *params);
416void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
Daniel Drake1f6fc432012-08-02 18:41:48 +0100417void cfg80211_process_wdev_events(struct wireless_dev *wdev);
Johannes Berg08645122009-05-11 13:54:58 +0200418
Janusz Dziedzicfe7c3a12013-11-05 14:48:48 +0100419/**
420 * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
421 * @wiphy: the wiphy to validate against
422 * @chandef: the channel definition to check
423 *
424 * Checks if chandef is usable and we can/need start CAC on such channel.
425 *
426 * Return: Return true if all channels available and at least
427 * one channel require CAC (NL80211_DFS_USABLE)
428 */
429bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
430 const struct cfg80211_chan_def *chandef);
431
Simon Wunderlich04f39042013-02-08 18:16:19 +0100432void cfg80211_set_dfs_state(struct wiphy *wiphy,
433 const struct cfg80211_chan_def *chandef,
434 enum nl80211_dfs_state dfs_state);
435
436void cfg80211_dfs_channels_update_work(struct work_struct *work);
437
Janusz Dziedzic31559f32014-02-21 19:46:13 +0100438unsigned int
439cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
440 const struct cfg80211_chan_def *chandef);
Simon Wunderlich04f39042013-02-08 18:16:19 +0100441
Simon Wunderlich04f39042013-02-08 18:16:19 +0100442static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
443{
444 unsigned long end = jiffies;
445
446 if (end >= start)
447 return jiffies_to_msecs(end - start);
448
Eliad Peller0ce12022014-06-17 13:07:02 +0300449 return jiffies_to_msecs(end + (ULONG_MAX - start) + 1);
Simon Wunderlich04f39042013-02-08 18:16:19 +0100450}
451
Michal Kazior26ab9a02012-06-29 12:47:00 +0200452void
Johannes Berg8e95ea42012-07-10 19:39:02 +0200453cfg80211_get_chan_state(struct wireless_dev *wdev,
Michal Kazior26ab9a02012-06-29 12:47:00 +0200454 struct ieee80211_channel **chan,
Michal Kazior9e0e2962014-01-29 14:22:27 +0100455 enum cfg80211_chan_mode *chanmode,
456 u8 *radar_detect);
Michal Kazior26ab9a02012-06-29 12:47:00 +0200457
Johannes Berge8c9bd52012-06-06 08:18:22 +0200458int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
Johannes Berg683b6d32012-11-08 21:25:48 +0100459 struct cfg80211_chan_def *chandef);
Johannes Berg59bbb6f2009-08-07 17:22:35 +0200460
Johannes Berg34850ab2011-07-18 18:08:35 +0200461int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
462 const u8 *rates, unsigned int n_rates,
463 u32 *mask);
464
Johannes Berg56d18932011-05-09 18:41:15 +0200465int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
466 u32 beacon_int);
467
Michal Kaziordbbae262012-06-29 12:47:01 +0200468void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
469 enum nl80211_iftype iftype, int num);
470
Michal Kaziorf04c2202014-04-09 15:11:01 +0200471void __cfg80211_leave(struct cfg80211_registered_device *rdev,
472 struct wireless_dev *wdev);
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100473void cfg80211_leave(struct cfg80211_registered_device *rdev,
474 struct wireless_dev *wdev);
475
Johannes Bergf9f47522013-03-19 15:04:07 +0100476void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
477 struct wireless_dev *wdev);
478
Michal Kaziord4e50c52012-06-29 12:47:07 +0200479#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
480
Johannes Bergf7969962009-08-21 12:23:49 +0200481#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
482#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
483#else
484/*
485 * Trick to enable using it as a condition,
486 * and also not give a warning when it's
487 * not used that way.
488 */
489#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
490#endif
491
Johannes Berg704232c2007-04-23 12:20:05 -0700492#endif /* __NET_WIRELESS_CORE_H */