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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
8#include <linux/mutex.h>
9#include <linux/list.h>
10#include <linux/netdevice.h>
Johannes Berg2a519312009-02-10 21:25:55 +010011#include <linux/kref.h>
12#include <linux/rbtree.h>
Luis R. Rodriguez1ac61302009-05-02 00:37:21 -040013#include <linux/debugfs.h>
Johannes Berg1f87f7d2009-06-02 13:01:41 +020014#include <linux/rfkill.h>
15#include <linux/workqueue.h>
Johannes Bergc5a7e582012-07-04 13:28:18 +020016#include <linux/rtnetlink.h>
Johannes Berg704232c2007-04-23 12:20:05 -070017#include <net/genetlink.h>
Johannes Berg704232c2007-04-23 12:20:05 -070018#include <net/cfg80211.h>
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -080019#include "reg.h"
Johannes Berg704232c2007-04-23 12:20:05 -070020
21struct cfg80211_registered_device {
David Kilroy3dcf6702009-05-16 23:13:46 +010022 const struct cfg80211_ops *ops;
Johannes Berg704232c2007-04-23 12:20:05 -070023 struct list_head list;
24 /* we hold this mutex during any call so that
25 * we cannot do multiple calls at once, and also
26 * to avoid the deregister call to proceed while
27 * any call is in progress */
28 struct mutex mtx;
29
Johannes Berg1f87f7d2009-06-02 13:01:41 +020030 /* rfkill support */
31 struct rfkill_ops rfkill_ops;
32 struct rfkill *rfkill;
33 struct work_struct rfkill_sync;
34
Luis R. Rodriguez3f2355c2008-11-12 14:22:02 -080035 /* ISO / IEC 3166 alpha2 for which this device is receiving
36 * country IEs on, this can help disregard country IEs from APs
37 * on the same alpha2 quickly. The alpha2 may differ from
38 * cfg80211_regdomain's alpha2 when an intersection has occurred.
39 * If the AP is reconfigured this can also be used to tell us if
40 * the country on the country IE changed. */
41 char country_ie_alpha2[2];
42
43 /* If a Country IE has been received this tells us the environment
44 * which its telling us its in. This defaults to ENVIRON_ANY */
45 enum environment_cap env;
46
Johannes Berg704232c2007-04-23 12:20:05 -070047 /* wiphy index, internal only */
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -050048 int wiphy_idx;
Johannes Berg704232c2007-04-23 12:20:05 -070049
Johannes Berg89a54e42012-06-15 14:33:17 +020050 /* associated wireless interfaces */
Johannes Berg704232c2007-04-23 12:20:05 -070051 struct mutex devlist_mtx;
Johannes Berg5f2aa252010-01-17 15:49:02 +010052 /* protected by devlist_mtx or RCU */
Johannes Berg89a54e42012-06-15 14:33:17 +020053 struct list_head wdev_list;
54 int devlist_generation, wdev_id;
Johannes Bergad002392009-08-18 19:51:57 +020055 int opencount; /* also protected by devlist_mtx */
56 wait_queue_head_t dev_wait;
Johannes Berg704232c2007-04-23 12:20:05 -070057
Eric W. Biederman15e47302012-09-07 20:12:54 +000058 u32 ap_beacons_nlportid;
Johannes Berg5e760232011-11-04 11:18:17 +010059
Johannes Bergc5a7e582012-07-04 13:28:18 +020060 /* protected by RTNL only */
Michal Kaziordbbae262012-06-29 12:47:01 +020061 int num_running_ifaces;
62 int num_running_monitor_ifaces;
63
Johannes Berg2a519312009-02-10 21:25:55 +010064 /* BSSes/scanning */
65 spinlock_t bss_lock;
66 struct list_head bss_list;
67 struct rb_root bss_tree;
68 u32 bss_generation;
69 struct cfg80211_scan_request *scan_req; /* protected by RTNL */
Luciano Coelho807f8a82011-05-11 17:09:35 +030070 struct cfg80211_sched_scan_request *sched_scan_req;
Dan Williamscb3a8ee2009-02-11 17:14:43 -050071 unsigned long suspend_at;
Johannes Berg667503d2009-07-07 03:56:11 +020072 struct work_struct scan_done_wk;
Luciano Coelho807f8a82011-05-11 17:09:35 +030073 struct work_struct sched_scan_results_wk;
Johannes Berg2a519312009-02-10 21:25:55 +010074
Luciano Coelhoc10841c2011-06-30 08:32:41 +030075 struct mutex sched_scan_mtx;
76
Johannes Bergaff89a92009-07-01 21:26:51 +020077#ifdef CONFIG_NL80211_TESTMODE
78 struct genl_info *testmode_info;
79#endif
80
Johannes Berg6829c8782009-07-02 09:13:27 +020081 struct work_struct conn_work;
Johannes Berg667503d2009-07-07 03:56:11 +020082 struct work_struct event_work;
Johannes Berg6829c8782009-07-02 09:13:27 +020083
Johannes Bergff1b6e62011-05-04 15:37:28 +020084 struct cfg80211_wowlan *wowlan;
85
Johannes Berg704232c2007-04-23 12:20:05 -070086 /* must be last because of the way we do wiphy_priv(),
87 * and it should at least be aligned to NETDEV_ALIGN */
88 struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
89};
90
91static inline
92struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
93{
94 BUG_ON(!wiphy);
95 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
96}
97
Luis R. Rodriguez85fd1292009-02-21 00:04:20 -050098/* Note 0 is valid, hence phy0 */
99static inline
100bool wiphy_idx_valid(int wiphy_idx)
101{
Eric Dumazeta02cec22010-09-22 20:43:57 +0000102 return wiphy_idx >= 0;
Luis R. Rodriguez85fd1292009-02-21 00:04:20 -0500103}
104
Johannes Bergff1b6e62011-05-04 15:37:28 +0200105static inline void
106cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
107{
108 int i;
109
110 if (!rdev->wowlan)
111 return;
112 for (i = 0; i < rdev->wowlan->n_patterns; i++)
113 kfree(rdev->wowlan->patterns[i].mask);
114 kfree(rdev->wowlan->patterns);
115 kfree(rdev->wowlan);
116}
Alban Browaeyse60d7442009-11-25 15:13:00 +0100117
118extern struct workqueue_struct *cfg80211_wq;
Luis R. Rodrigueza1794392009-02-21 00:04:21 -0500119extern struct mutex cfg80211_mutex;
Johannes Berg79c97e92009-07-07 03:56:12 +0200120extern struct list_head cfg80211_rdev_list;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200121extern int cfg80211_rdev_list_generation;
Johannes Berg704232c2007-04-23 12:20:05 -0700122
Johannes Berg46a5eba2010-09-15 13:28:15 +0200123static inline void assert_cfg80211_lock(void)
124{
125 lockdep_assert_held(&cfg80211_mutex);
126}
Luis R. Rodriguez761cf7e2009-02-21 00:04:25 -0500127
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500128/*
129 * You can use this to mark a wiphy_idx as not having an associated wiphy.
Johannes Berg79c97e92009-07-07 03:56:12 +0200130 * It guarantees cfg80211_rdev_by_wiphy_idx(wiphy_idx) will return NULL
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500131 */
132#define WIPHY_IDX_STALE -1
133
Johannes Berg2a519312009-02-10 21:25:55 +0100134struct cfg80211_internal_bss {
135 struct list_head list;
136 struct rb_node rbn;
137 unsigned long ts;
138 struct kref ref;
Johannes Berg19957bb2009-07-02 17:20:43 +0200139 atomic_t hold;
Jouni Malinen34a6edd2010-01-06 16:19:24 +0200140 bool beacon_ies_allocated;
141 bool proberesp_ies_allocated;
Kalle Valoa08c1c12009-03-22 21:57:28 +0200142
Johannes Berg2a519312009-02-10 21:25:55 +0100143 /* must be last because of priv member */
144 struct cfg80211_bss pub;
145};
146
Johannes Berg19957bb2009-07-02 17:20:43 +0200147static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
148{
149 return container_of(pub, struct cfg80211_internal_bss, pub);
150}
151
152static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
153{
154 atomic_inc(&bss->hold);
155}
156
157static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
158{
159 int r = atomic_dec_return(&bss->hold);
160 WARN_ON(r < 0);
161}
162
163
Johannes Berg79c97e92009-07-07 03:56:12 +0200164struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500165int get_wiphy_idx(struct wiphy *wiphy);
166
Johannes Berg79c97e92009-07-07 03:56:12 +0200167/* requires cfg80211_rdev_mutex to be held! */
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500168struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
169
Johannes Berg55682962007-09-20 13:09:35 -0400170/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
171extern struct cfg80211_registered_device *
Johannes Berg463d0182009-07-14 00:33:35 +0200172cfg80211_get_dev_from_ifindex(struct net *net, int ifindex);
173
174int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
175 struct net *net);
Johannes Berg55682962007-09-20 13:09:35 -0400176
Johannes Berg79c97e92009-07-07 03:56:12 +0200177static inline void cfg80211_lock_rdev(struct cfg80211_registered_device *rdev)
Johannes Berg667503d2009-07-07 03:56:11 +0200178{
Johannes Berg79c97e92009-07-07 03:56:12 +0200179 mutex_lock(&rdev->mtx);
Johannes Berg667503d2009-07-07 03:56:11 +0200180}
181
Johannes Berg79c97e92009-07-07 03:56:12 +0200182static inline void cfg80211_unlock_rdev(struct cfg80211_registered_device *rdev)
Johannes Berg4d0c8ae2009-07-07 03:56:09 +0200183{
Johannes Berg79c97e92009-07-07 03:56:12 +0200184 BUG_ON(IS_ERR(rdev) || !rdev);
185 mutex_unlock(&rdev->mtx);
Johannes Berg4d0c8ae2009-07-07 03:56:09 +0200186}
Johannes Berg55682962007-09-20 13:09:35 -0400187
Johannes Berg667503d2009-07-07 03:56:11 +0200188static inline void wdev_lock(struct wireless_dev *wdev)
189 __acquires(wdev)
190{
191 mutex_lock(&wdev->mtx);
192 __acquire(wdev->mtx);
193}
194
195static inline void wdev_unlock(struct wireless_dev *wdev)
196 __releases(wdev)
197{
198 __release(wdev->mtx);
199 mutex_unlock(&wdev->mtx);
200}
201
Johannes Berg46a5eba2010-09-15 13:28:15 +0200202#define ASSERT_RDEV_LOCK(rdev) lockdep_assert_held(&(rdev)->mtx)
203#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
Johannes Berg667503d2009-07-07 03:56:11 +0200204
Michal Kaziordbbae262012-06-29 12:47:01 +0200205static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
206{
Johannes Bergc5a7e582012-07-04 13:28:18 +0200207 ASSERT_RTNL();
Michal Kaziordbbae262012-06-29 12:47:01 +0200208
209 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
210 rdev->num_running_ifaces > 0;
211}
212
Johannes Berg667503d2009-07-07 03:56:11 +0200213enum cfg80211_event_type {
214 EVENT_CONNECT_RESULT,
215 EVENT_ROAMED,
216 EVENT_DISCONNECTED,
217 EVENT_IBSS_JOINED,
218};
219
220struct cfg80211_event {
221 struct list_head list;
222 enum cfg80211_event_type type;
223
224 union {
225 struct {
226 u8 bssid[ETH_ALEN];
227 const u8 *req_ie;
228 const u8 *resp_ie;
229 size_t req_ie_len;
230 size_t resp_ie_len;
231 u16 status;
232 } cr;
233 struct {
Johannes Berg667503d2009-07-07 03:56:11 +0200234 const u8 *req_ie;
235 const u8 *resp_ie;
236 size_t req_ie_len;
237 size_t resp_ie_len;
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530238 struct cfg80211_bss *bss;
Johannes Berg667503d2009-07-07 03:56:11 +0200239 } rm;
240 struct {
241 const u8 *ie;
242 size_t ie_len;
243 u16 reason;
244 } dc;
245 struct {
246 u8 bssid[ETH_ALEN];
247 } ij;
248 };
249};
250
Johannes Bergfffd0932009-07-08 14:22:54 +0200251struct cfg80211_cached_keys {
252 struct key_params params[6];
253 u8 data[6][WLAN_MAX_KEY_LEN];
254 int def, defmgmt;
255};
256
Michal Kazior26ab9a02012-06-29 12:47:00 +0200257enum cfg80211_chan_mode {
258 CHAN_MODE_UNDEFINED,
259 CHAN_MODE_SHARED,
260 CHAN_MODE_EXCLUSIVE,
261};
262
Johannes Berg667503d2009-07-07 03:56:11 +0200263
Johannes Berg704232c2007-04-23 12:20:05 -0700264/* free object */
Johannes Berg79c97e92009-07-07 03:56:12 +0200265extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700266
Johannes Berg79c97e92009-07-07 03:56:12 +0200267extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
Johannes Berg55682962007-09-20 13:09:35 -0400268 char *newname);
269
Johannes Berg8318d782008-01-24 19:38:38 +0100270void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
Johannes Berg8318d782008-01-24 19:38:38 +0100271
Johannes Berg2a519312009-02-10 21:25:55 +0100272void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500273void cfg80211_bss_age(struct cfg80211_registered_device *dev,
274 unsigned long age_secs);
Johannes Berg2a519312009-02-10 21:25:55 +0100275
Johannes Berg04a773a2009-04-19 21:24:32 +0200276/* IBSS */
Johannes Berg667503d2009-07-07 03:56:11 +0200277int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
278 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200279 struct cfg80211_ibss_params *params,
280 struct cfg80211_cached_keys *connkeys);
Johannes Berg04a773a2009-04-19 21:24:32 +0200281int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
282 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200283 struct cfg80211_ibss_params *params,
284 struct cfg80211_cached_keys *connkeys);
Johannes Berg9d308422009-04-20 18:43:46 +0200285void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
Johannes Berg98d3a7c2009-11-18 13:03:43 +0100286int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
287 struct net_device *dev, bool nowext);
Johannes Berg04a773a2009-04-19 21:24:32 +0200288int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
Johannes Berg9d308422009-04-20 18:43:46 +0200289 struct net_device *dev, bool nowext);
Johannes Berg667503d2009-07-07 03:56:11 +0200290void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid);
Johannes Bergfffd0932009-07-08 14:22:54 +0200291int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
292 struct wireless_dev *wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +0200293
Johannes Berg29cbe682010-12-03 09:20:44 +0100294/* mesh */
295extern const struct mesh_config default_mesh_config;
Javier Cardonac80d5452010-12-16 17:37:49 -0800296extern const struct mesh_setup default_mesh_setup;
Johannes Berg29cbe682010-12-03 09:20:44 +0100297int __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);
301int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
302 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200303 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100304 const struct mesh_config *conf);
305int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
306 struct net_device *dev);
Johannes Bergcc1d2802012-05-16 23:50:20 +0200307int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev,
308 struct wireless_dev *wdev, int freq,
309 enum nl80211_channel_type channel_type);
Johannes Berg29cbe682010-12-03 09:20:44 +0100310
Michal Kazior60771782012-06-29 12:46:56 +0200311/* AP */
312int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
313 struct net_device *dev);
314
Johannes Berg19957bb2009-07-02 17:20:43 +0200315/* MLME */
Johannes Berg667503d2009-07-07 03:56:11 +0200316int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
317 struct net_device *dev,
318 struct ieee80211_channel *chan,
319 enum nl80211_auth_type auth_type,
320 const u8 *bssid,
321 const u8 *ssid, int ssid_len,
Johannes Bergfffd0932009-07-08 14:22:54 +0200322 const u8 *ie, int ie_len,
Johannes Berg95de8172012-01-20 13:55:25 +0100323 const u8 *key, int key_len, int key_idx);
Johannes Berg19957bb2009-07-02 17:20:43 +0200324int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
325 struct net_device *dev, struct ieee80211_channel *chan,
326 enum nl80211_auth_type auth_type, const u8 *bssid,
327 const u8 *ssid, int ssid_len,
Johannes Bergfffd0932009-07-08 14:22:54 +0200328 const u8 *ie, int ie_len,
Johannes Berg95de8172012-01-20 13:55:25 +0100329 const u8 *key, int key_len, int key_idx);
Johannes Berg667503d2009-07-07 03:56:11 +0200330int __cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
331 struct net_device *dev,
332 struct ieee80211_channel *chan,
333 const u8 *bssid, const u8 *prev_bssid,
334 const u8 *ssid, int ssid_len,
335 const u8 *ie, int ie_len, bool use_mfp,
Ben Greear7e7c8922011-11-18 11:31:59 -0800336 struct cfg80211_crypto_settings *crypt,
337 u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
338 struct ieee80211_ht_cap *ht_capa_mask);
Johannes Berg19957bb2009-07-02 17:20:43 +0200339int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
340 struct net_device *dev, struct ieee80211_channel *chan,
Johannes Berg3e5d7642009-07-07 14:37:26 +0200341 const u8 *bssid, const u8 *prev_bssid,
342 const u8 *ssid, int ssid_len,
Johannes Berg19957bb2009-07-02 17:20:43 +0200343 const u8 *ie, int ie_len, bool use_mfp,
Ben Greear7e7c8922011-11-18 11:31:59 -0800344 struct cfg80211_crypto_settings *crypt,
345 u32 assoc_flags, struct ieee80211_ht_cap *ht_capa,
346 struct ieee80211_ht_cap *ht_capa_mask);
Johannes Berg667503d2009-07-07 03:56:11 +0200347int __cfg80211_mlme_deauth(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 +0200351int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
352 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300353 const u8 *ie, int ie_len, u16 reason,
354 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200355int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
356 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300357 const u8 *ie, int ie_len, u16 reason,
358 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200359void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
360 struct net_device *dev);
Johannes Berg667503d2009-07-07 03:56:11 +0200361void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
362 const u8 *req_ie, size_t req_ie_len,
363 const u8 *resp_ie, size_t resp_ie_len,
Johannes Bergdf7fc0f2009-07-29 11:23:49 +0200364 u16 status, bool wextev,
365 struct cfg80211_bss *bss);
Johannes Berg2e161f72010-08-12 15:38:38 +0200366int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
367 u16 frame_type, const u8 *match_data,
368 int match_len);
369void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
370void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
371int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
Johannes Berg71bbc992012-06-15 15:30:18 +0200372 struct wireless_dev *wdev,
Johannes Bergf7ca38d2010-11-25 10:02:29 +0100373 struct ieee80211_channel *chan, bool offchan,
Johannes Berg2e161f72010-08-12 15:38:38 +0200374 enum nl80211_channel_type channel_type,
Johannes Bergf7ca38d2010-11-25 10:02:29 +0100375 bool channel_type_valid, unsigned int wait,
Rajkumar Manoharane9f935e2011-09-25 14:53:30 +0530376 const u8 *buf, size_t len, bool no_cck,
Johannes Berge247bd902011-11-04 11:18:21 +0100377 bool dont_wait_for_ack, u64 *cookie);
Ben Greear7e7c8922011-11-18 11:31:59 -0800378void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
379 const struct ieee80211_ht_cap *ht_capa_mask);
Johannes Berg19957bb2009-07-02 17:20:43 +0200380
Samuel Ortizb23aa672009-07-01 21:26:54 +0200381/* SME */
Johannes Berg667503d2009-07-07 03:56:11 +0200382int __cfg80211_connect(struct cfg80211_registered_device *rdev,
383 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200384 struct cfg80211_connect_params *connect,
Johannes Bergf401a6f2009-08-07 14:51:05 +0200385 struct cfg80211_cached_keys *connkeys,
386 const u8 *prev_bssid);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200387int cfg80211_connect(struct cfg80211_registered_device *rdev,
388 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200389 struct cfg80211_connect_params *connect,
390 struct cfg80211_cached_keys *connkeys);
Johannes Berg667503d2009-07-07 03:56:11 +0200391int __cfg80211_disconnect(struct cfg80211_registered_device *rdev,
392 struct net_device *dev, u16 reason,
393 bool wextev);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200394int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
Johannes Bergf2129352009-07-01 21:26:56 +0200395 struct net_device *dev, u16 reason,
396 bool wextev);
Jouni Malinened9d0102011-05-16 19:40:15 +0300397void __cfg80211_roamed(struct wireless_dev *wdev,
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530398 struct cfg80211_bss *bss,
Johannes Berg667503d2009-07-07 03:56:11 +0200399 const u8 *req_ie, size_t req_ie_len,
400 const u8 *resp_ie, size_t resp_ie_len);
Johannes Bergfffd0932009-07-08 14:22:54 +0200401int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
402 struct wireless_dev *wdev);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200403
Johannes Berg6829c8782009-07-02 09:13:27 +0200404void cfg80211_conn_work(struct work_struct *work);
Johannes Berg7d930bc2009-10-20 15:08:53 +0900405void cfg80211_sme_failed_assoc(struct wireless_dev *wdev);
Johannes Bergf401a6f2009-08-07 14:51:05 +0200406bool cfg80211_sme_failed_reassoc(struct wireless_dev *wdev);
Johannes Berg6829c8782009-07-02 09:13:27 +0200407
Johannes Berg08645122009-05-11 13:54:58 +0200408/* internal helpers */
Jouni Malinen38ba3c52011-09-21 18:14:56 +0300409bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
Johannes Bergfffd0932009-07-08 14:22:54 +0200410int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
411 struct key_params *params, int key_idx,
Johannes Berge31b8212010-10-05 19:39:30 +0200412 bool pairwise, const u8 *mac_addr);
Johannes Berg667503d2009-07-07 03:56:11 +0200413void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
Johannes Berg6829c8782009-07-02 09:13:27 +0200414 size_t ie_len, u16 reason, bool from_ap);
415void cfg80211_sme_scan_done(struct net_device *dev);
416void cfg80211_sme_rx_auth(struct net_device *dev, const u8 *buf, size_t len);
Johannes Berg95de8172012-01-20 13:55:25 +0100417void cfg80211_sme_disassoc(struct net_device *dev,
418 struct cfg80211_internal_bss *bss);
Johannes Berg667503d2009-07-07 03:56:11 +0200419void __cfg80211_scan_done(struct work_struct *wk);
Johannes Berg01a0ac42009-08-20 21:36:16 +0200420void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
Luciano Coelho807f8a82011-05-11 17:09:35 +0300421void __cfg80211_sched_scan_results(struct work_struct *wk);
422int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
423 bool driver_initiated);
Johannes Bergfffd0932009-07-08 14:22:54 +0200424void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
Johannes Berg3d54d252009-08-21 14:51:05 +0200425int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
426 struct net_device *dev, enum nl80211_iftype ntype,
427 u32 *flags, struct vif_params *params);
428void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
Daniel Drake1f6fc432012-08-02 18:41:48 +0100429void cfg80211_process_wdev_events(struct wireless_dev *wdev);
Johannes Berg08645122009-05-11 13:54:58 +0200430
Michal Kaziord4e50c52012-06-29 12:47:07 +0200431int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
432 struct wireless_dev *wdev,
433 enum nl80211_iftype iftype,
434 struct ieee80211_channel *chan,
435 enum cfg80211_chan_mode chanmode);
436
437static inline int
438cfg80211_can_change_interface(struct cfg80211_registered_device *rdev,
439 struct wireless_dev *wdev,
440 enum nl80211_iftype iftype)
441{
442 return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL,
443 CHAN_MODE_UNDEFINED);
444}
Johannes Berg7527a782011-05-13 10:58:57 +0200445
446static inline int
447cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
448 enum nl80211_iftype iftype)
449{
450 return cfg80211_can_change_interface(rdev, NULL, iftype);
451}
452
Michal Kaziord4e50c52012-06-29 12:47:07 +0200453static inline int
454cfg80211_can_use_chan(struct cfg80211_registered_device *rdev,
455 struct wireless_dev *wdev,
456 struct ieee80211_channel *chan,
457 enum cfg80211_chan_mode chanmode)
458{
459 return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
460 chan, chanmode);
461}
462
Michal Kazior26ab9a02012-06-29 12:47:00 +0200463void
Johannes Berg8e95ea42012-07-10 19:39:02 +0200464cfg80211_get_chan_state(struct wireless_dev *wdev,
Michal Kazior26ab9a02012-06-29 12:47:00 +0200465 struct ieee80211_channel **chan,
466 enum cfg80211_chan_mode *chanmode);
467
Johannes Berg59bbb6f2009-08-07 17:22:35 +0200468struct ieee80211_channel *
Jouni Malinen9588bbd2009-12-23 13:15:41 +0100469rdev_freq_to_chan(struct cfg80211_registered_device *rdev,
470 int freq, enum nl80211_channel_type channel_type);
Johannes Berge8c9bd52012-06-06 08:18:22 +0200471int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
472 int freq, enum nl80211_channel_type chantype);
Johannes Berg59bbb6f2009-08-07 17:22:35 +0200473
Johannes Berg34850ab2011-07-18 18:08:35 +0200474int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
475 const u8 *rates, unsigned int n_rates,
476 u32 *mask);
477
Johannes Berg56d18932011-05-09 18:41:15 +0200478int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
479 u32 beacon_int);
480
Michal Kaziordbbae262012-06-29 12:47:01 +0200481void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
482 enum nl80211_iftype iftype, int num);
483
Michal Kaziord4e50c52012-06-29 12:47:07 +0200484#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
485
Johannes Bergf7969962009-08-21 12:23:49 +0200486#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
487#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
488#else
489/*
490 * Trick to enable using it as a condition,
491 * and also not give a warning when it's
492 * not used that way.
493 */
494#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
495#endif
496
Johannes Berg704232c2007-04-23 12:20:05 -0700497#endif /* __NET_WIRELESS_CORE_H */