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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
39 /* If a Country IE has been received this tells us the environment
40 * which its telling us its in. This defaults to ENVIRON_ANY */
41 enum environment_cap env;
42
Johannes Berg704232c2007-04-23 12:20:05 -070043 /* wiphy index, internal only */
Luis R. Rodriguezb5850a72009-02-21 00:04:19 -050044 int wiphy_idx;
Johannes Berg704232c2007-04-23 12:20:05 -070045
Johannes Berg5fe231e2013-05-08 21:45:15 +020046 /* associated wireless interfaces, protected by rtnl or RCU */
Johannes Berg89a54e42012-06-15 14:33:17 +020047 struct list_head wdev_list;
48 int devlist_generation, wdev_id;
Johannes Bergad002392009-08-18 19:51:57 +020049 int opencount; /* also protected by devlist_mtx */
50 wait_queue_head_t dev_wait;
Johannes Berg704232c2007-04-23 12:20:05 -070051
Ben Greear37c73b52012-10-26 14:49:25 -070052 struct list_head beacon_registrations;
53 spinlock_t beacon_registrations_lock;
Johannes Berg5e7602302011-11-04 11:18:17 +010054
Johannes Bergc5a7e582012-07-04 13:28:18 +020055 /* protected by RTNL only */
Michal Kaziordbbae262012-06-29 12:47:01 +020056 int num_running_ifaces;
57 int num_running_monitor_ifaces;
58
Johannes Berg2a519312009-02-10 21:25:55 +010059 /* BSSes/scanning */
60 spinlock_t bss_lock;
61 struct list_head bss_list;
62 struct rb_root bss_tree;
63 u32 bss_generation;
64 struct cfg80211_scan_request *scan_req; /* protected by RTNL */
Luciano Coelho807f8a82011-05-11 17:09:35 +030065 struct cfg80211_sched_scan_request *sched_scan_req;
Dan Williamscb3a8ee2009-02-11 17:14:43 -050066 unsigned long suspend_at;
Johannes Berg667503dd2009-07-07 03:56:11 +020067 struct work_struct scan_done_wk;
Luciano Coelho807f8a82011-05-11 17:09:35 +030068 struct work_struct sched_scan_results_wk;
Johannes Berg2a519312009-02-10 21:25:55 +010069
Johannes Bergaff89a92009-07-01 21:26:51 +020070#ifdef CONFIG_NL80211_TESTMODE
71 struct genl_info *testmode_info;
72#endif
73
Johannes Berg6829c872009-07-02 09:13:27 +020074 struct work_struct conn_work;
Johannes Berg667503dd2009-07-07 03:56:11 +020075 struct work_struct event_work;
Johannes Berg6829c872009-07-02 09:13:27 +020076
Simon Wunderlich04f39042013-02-08 18:16:19 +010077 struct delayed_work dfs_update_channels_wk;
78
Arend van Spriel5de17982013-04-18 15:49:00 +020079 /* netlink port which started critical protocol (0 means not started) */
80 u32 crit_proto_nlportid;
81
Amitkumar Karwarbe29b992013-06-28 11:51:26 -070082 struct cfg80211_coalesce *coalesce;
83
Johannes Berg704232c2007-04-23 12:20:05 -070084 /* must be last because of the way we do wiphy_priv(),
85 * and it should at least be aligned to NETDEV_ALIGN */
Johannes Berg1c06ef92012-12-28 12:22:02 +010086 struct wiphy wiphy __aligned(NETDEV_ALIGN);
Johannes Berg704232c2007-04-23 12:20:05 -070087};
88
89static inline
90struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
91{
92 BUG_ON(!wiphy);
93 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
94}
95
Johannes Bergff1b6e62011-05-04 15:37:28 +020096static inline void
97cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
98{
Johannes Berg6abb9cb2013-05-15 09:30:07 +020099#ifdef CONFIG_PM
Johannes Bergff1b6e62011-05-04 15:37:28 +0200100 int i;
101
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200102 if (!rdev->wiphy.wowlan_config)
Johannes Bergff1b6e62011-05-04 15:37:28 +0200103 return;
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200104 for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
105 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
106 kfree(rdev->wiphy.wowlan_config->patterns);
107 if (rdev->wiphy.wowlan_config->tcp &&
108 rdev->wiphy.wowlan_config->tcp->sock)
109 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
110 kfree(rdev->wiphy.wowlan_config->tcp);
111 kfree(rdev->wiphy.wowlan_config);
112#endif
Johannes Bergff1b6e62011-05-04 15:37:28 +0200113}
Alban Browaeyse60d7442009-11-25 15:13:00 +0100114
115extern struct workqueue_struct *cfg80211_wq;
Johannes Berg79c97e92009-07-07 03:56:12 +0200116extern struct list_head cfg80211_rdev_list;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200117extern int cfg80211_rdev_list_generation;
Johannes Berg704232c2007-04-23 12:20:05 -0700118
Johannes Berg2a519312009-02-10 21:25:55 +0100119struct cfg80211_internal_bss {
120 struct list_head list;
Johannes Berg776b3582013-02-01 02:06:18 +0100121 struct list_head hidden_list;
Johannes Berg2a519312009-02-10 21:25:55 +0100122 struct rb_node rbn;
123 unsigned long ts;
Johannes Berg776b3582013-02-01 02:06:18 +0100124 unsigned long refcount;
Johannes Berg19957bb2009-07-02 17:20:43 +0200125 atomic_t hold;
Kalle Valoa08c1c12009-03-22 21:57:28 +0200126
Johannes Berg2a519312009-02-10 21:25:55 +0100127 /* must be last because of priv member */
128 struct cfg80211_bss pub;
129};
130
Johannes Berg19957bb2009-07-02 17:20:43 +0200131static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
132{
133 return container_of(pub, struct cfg80211_internal_bss, pub);
134}
135
136static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
137{
138 atomic_inc(&bss->hold);
139}
140
141static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
142{
143 int r = atomic_dec_return(&bss->hold);
144 WARN_ON(r < 0);
145}
146
147
Johannes Berg79c97e92009-07-07 03:56:12 +0200148struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500149int get_wiphy_idx(struct wiphy *wiphy);
150
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500151struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
152
Johannes Berg463d0182009-07-14 00:33:35 +0200153int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
154 struct net *net);
Johannes Berg55682962007-09-20 13:09:35 -0400155
Johannes Berg667503dd2009-07-07 03:56:11 +0200156static inline void wdev_lock(struct wireless_dev *wdev)
157 __acquires(wdev)
158{
159 mutex_lock(&wdev->mtx);
160 __acquire(wdev->mtx);
161}
162
163static inline void wdev_unlock(struct wireless_dev *wdev)
164 __releases(wdev)
165{
166 __release(wdev->mtx);
167 mutex_unlock(&wdev->mtx);
168}
169
Johannes Berg5fe231e2013-05-08 21:45:15 +0200170#define ASSERT_RDEV_LOCK(rdev) ASSERT_RTNL()
Johannes Berg46a5eba2010-09-15 13:28:15 +0200171#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
Johannes Berg667503dd2009-07-07 03:56:11 +0200172
Michal Kaziordbbae262012-06-29 12:47:01 +0200173static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
174{
Johannes Bergc5a7e582012-07-04 13:28:18 +0200175 ASSERT_RTNL();
Michal Kaziordbbae262012-06-29 12:47:01 +0200176
177 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
178 rdev->num_running_ifaces > 0;
179}
180
Johannes Berg667503dd2009-07-07 03:56:11 +0200181enum cfg80211_event_type {
182 EVENT_CONNECT_RESULT,
183 EVENT_ROAMED,
184 EVENT_DISCONNECTED,
185 EVENT_IBSS_JOINED,
186};
187
188struct cfg80211_event {
189 struct list_head list;
190 enum cfg80211_event_type type;
191
192 union {
193 struct {
194 u8 bssid[ETH_ALEN];
195 const u8 *req_ie;
196 const u8 *resp_ie;
197 size_t req_ie_len;
198 size_t resp_ie_len;
199 u16 status;
200 } cr;
201 struct {
Johannes Berg667503dd2009-07-07 03:56:11 +0200202 const u8 *req_ie;
203 const u8 *resp_ie;
204 size_t req_ie_len;
205 size_t resp_ie_len;
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530206 struct cfg80211_bss *bss;
Johannes Berg667503dd2009-07-07 03:56:11 +0200207 } rm;
208 struct {
209 const u8 *ie;
210 size_t ie_len;
211 u16 reason;
212 } dc;
213 struct {
214 u8 bssid[ETH_ALEN];
215 } ij;
216 };
217};
218
Johannes Bergfffd0932009-07-08 14:22:54 +0200219struct cfg80211_cached_keys {
220 struct key_params params[6];
221 u8 data[6][WLAN_MAX_KEY_LEN];
222 int def, defmgmt;
223};
224
Michal Kazior26ab9a02012-06-29 12:47:00 +0200225enum cfg80211_chan_mode {
226 CHAN_MODE_UNDEFINED,
227 CHAN_MODE_SHARED,
228 CHAN_MODE_EXCLUSIVE,
229};
230
Ben Greear37c73b52012-10-26 14:49:25 -0700231struct cfg80211_beacon_registration {
232 struct list_head list;
233 u32 nlportid;
234};
Johannes Berg667503dd2009-07-07 03:56:11 +0200235
Johannes Berg704232c2007-04-23 12:20:05 -0700236/* free object */
Johannes Berg79c97e92009-07-07 03:56:12 +0200237extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700238
Johannes Berg79c97e92009-07-07 03:56:12 +0200239extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
Johannes Berg55682962007-09-20 13:09:35 -0400240 char *newname);
241
Johannes Berg8318d782008-01-24 19:38:38 +0100242void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
Johannes Berg8318d782008-01-24 19:38:38 +0100243
Johannes Berg2a519312009-02-10 21:25:55 +0100244void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500245void cfg80211_bss_age(struct cfg80211_registered_device *dev,
246 unsigned long age_secs);
Johannes Berg2a519312009-02-10 21:25:55 +0100247
Johannes Berg04a773a2009-04-19 21:24:32 +0200248/* IBSS */
Johannes Berg667503dd2009-07-07 03:56:11 +0200249int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
250 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200251 struct cfg80211_ibss_params *params,
252 struct cfg80211_cached_keys *connkeys);
Johannes Berg04a773a2009-04-19 21:24:32 +0200253int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
254 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200255 struct cfg80211_ibss_params *params,
256 struct cfg80211_cached_keys *connkeys);
Johannes Berg9d308422009-04-20 18:43:46 +0200257void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
Johannes Berg98d3a7c2009-11-18 13:03:43 +0100258int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
259 struct net_device *dev, bool nowext);
Johannes Berg04a773a2009-04-19 21:24:32 +0200260int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
Johannes Berg9d308422009-04-20 18:43:46 +0200261 struct net_device *dev, bool nowext);
Johannes Berg667503dd2009-07-07 03:56:11 +0200262void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid);
Johannes Bergfffd0932009-07-08 14:22:54 +0200263int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
264 struct wireless_dev *wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +0200265
Johannes Berg29cbe682010-12-03 09:20:44 +0100266/* mesh */
267extern const struct mesh_config default_mesh_config;
Javier Cardonac80d5452010-12-16 17:37:49 -0800268extern const struct mesh_setup default_mesh_setup;
Johannes Berg29cbe682010-12-03 09:20:44 +0100269int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
270 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200271 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100272 const struct mesh_config *conf);
273int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
274 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200275 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100276 const struct mesh_config *conf);
277int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
278 struct net_device *dev);
Johannes Berg683b6d32012-11-08 21:25:48 +0100279int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
280 struct wireless_dev *wdev,
281 struct cfg80211_chan_def *chandef);
Johannes Berg29cbe682010-12-03 09:20:44 +0100282
Michal Kazior60771782012-06-29 12:46:56 +0200283/* AP */
284int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
285 struct net_device *dev);
286
Johannes Berg19957bb2009-07-02 17:20:43 +0200287/* MLME */
288int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
Johannes Berg91bf9b22013-05-15 17:44:01 +0200289 struct net_device *dev,
290 struct ieee80211_channel *chan,
291 enum nl80211_auth_type auth_type,
292 const u8 *bssid,
Johannes Berg19957bb2009-07-02 17:20:43 +0200293 const u8 *ssid, int ssid_len,
Johannes Bergfffd0932009-07-08 14:22:54 +0200294 const u8 *ie, int ie_len,
Jouni Malinene39e5b52012-09-30 19:29:39 +0300295 const u8 *key, int key_len, int key_idx,
296 const u8 *sae_data, int sae_data_len);
Johannes Berg19957bb2009-07-02 17:20:43 +0200297int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
Johannes Bergf62fab72013-02-21 20:09:09 +0100298 struct net_device *dev,
299 struct ieee80211_channel *chan,
300 const u8 *bssid,
Johannes Berg3e5d7642009-07-07 14:37:26 +0200301 const u8 *ssid, int ssid_len,
Johannes Bergf62fab72013-02-21 20:09:09 +0100302 struct cfg80211_assoc_request *req);
Johannes Berg19957bb2009-07-02 17:20:43 +0200303int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
304 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300305 const u8 *ie, int ie_len, u16 reason,
306 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200307int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
308 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300309 const u8 *ie, int ie_len, u16 reason,
310 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200311void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
312 struct net_device *dev);
Johannes Berg2e161f72010-08-12 15:38:38 +0200313int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
314 u16 frame_type, const u8 *match_data,
315 int match_len);
316void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
317void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
318int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
Johannes Berg71bbc992012-06-15 15:30:18 +0200319 struct wireless_dev *wdev,
Johannes Bergf7ca38d2010-11-25 10:02:29 +0100320 struct ieee80211_channel *chan, bool offchan,
Johannes Berg42d97a52012-11-08 18:31:02 +0100321 unsigned int wait, const u8 *buf, size_t len,
322 bool no_cck, bool dont_wait_for_ack, u64 *cookie);
Ben Greear7e7c8922011-11-18 11:31:59 -0800323void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
324 const struct ieee80211_ht_cap *ht_capa_mask);
Johannes Bergee2aca32013-02-21 17:36:01 +0100325void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
326 const struct ieee80211_vht_cap *vht_capa_mask);
Johannes Berg19957bb2009-07-02 17:20:43 +0200327
Johannes Bergceca7b72013-05-16 00:55:45 +0200328/* SME events */
Samuel Ortizb23aa672009-07-01 21:26:54 +0200329int cfg80211_connect(struct cfg80211_registered_device *rdev,
330 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200331 struct cfg80211_connect_params *connect,
Johannes Berg83739b02013-05-15 17:44:01 +0200332 struct cfg80211_cached_keys *connkeys,
333 const u8 *prev_bssid);
Johannes Bergceca7b72013-05-16 00:55:45 +0200334void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
335 const u8 *req_ie, size_t req_ie_len,
336 const u8 *resp_ie, size_t resp_ie_len,
337 u16 status, bool wextev,
338 struct cfg80211_bss *bss);
339void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
340 size_t ie_len, u16 reason, bool from_ap);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200341int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
Johannes Bergf2129352009-07-01 21:26:56 +0200342 struct net_device *dev, u16 reason,
343 bool wextev);
Jouni Malinened9d0102011-05-16 19:40:15 +0300344void __cfg80211_roamed(struct wireless_dev *wdev,
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530345 struct cfg80211_bss *bss,
Johannes Berg667503dd2009-07-07 03:56:11 +0200346 const u8 *req_ie, size_t req_ie_len,
347 const u8 *resp_ie, size_t resp_ie_len);
Johannes Bergfffd0932009-07-08 14:22:54 +0200348int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
349 struct wireless_dev *wdev);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200350
Johannes Bergceca7b72013-05-16 00:55:45 +0200351/* SME implementation */
Johannes Berg6829c872009-07-02 09:13:27 +0200352void cfg80211_conn_work(struct work_struct *work);
Johannes Bergceca7b72013-05-16 00:55:45 +0200353void cfg80211_sme_scan_done(struct net_device *dev);
354bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
355void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
356void cfg80211_sme_disassoc(struct wireless_dev *wdev);
357void cfg80211_sme_deauth(struct wireless_dev *wdev);
358void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
359void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
Johannes Berg6829c872009-07-02 09:13:27 +0200360
Johannes Berg08645122009-05-11 13:54:58 +0200361/* internal helpers */
Jouni Malinen38ba3c52011-09-21 18:14:56 +0300362bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
Johannes Bergfffd0932009-07-08 14:22:54 +0200363int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
364 struct key_params *params, int key_idx,
Johannes Berge31b8212010-10-05 19:39:30 +0200365 bool pairwise, const u8 *mac_addr);
Johannes Berg667503dd2009-07-07 03:56:11 +0200366void __cfg80211_scan_done(struct work_struct *wk);
Johannes Berg01a0ac42009-08-20 21:36:16 +0200367void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev, bool leak);
Luciano Coelho807f8a82011-05-11 17:09:35 +0300368void __cfg80211_sched_scan_results(struct work_struct *wk);
369int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
370 bool driver_initiated);
Johannes Bergfffd0932009-07-08 14:22:54 +0200371void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
Johannes Berg3d54d252009-08-21 14:51:05 +0200372int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
373 struct net_device *dev, enum nl80211_iftype ntype,
374 u32 *flags, struct vif_params *params);
375void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
Daniel Drake1f6fc432012-08-02 18:41:48 +0100376void cfg80211_process_wdev_events(struct wireless_dev *wdev);
Johannes Berg08645122009-05-11 13:54:58 +0200377
Michal Kaziord4e50c52012-06-29 12:47:07 +0200378int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
379 struct wireless_dev *wdev,
380 enum nl80211_iftype iftype,
381 struct ieee80211_channel *chan,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100382 enum cfg80211_chan_mode chanmode,
383 u8 radar_detect);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200384
Simon Wunderlich04f39042013-02-08 18:16:19 +0100385/**
386 * cfg80211_chandef_dfs_required - checks if radar detection is required
387 * @wiphy: the wiphy to validate against
388 * @chandef: the channel definition to check
389 * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
390 */
391int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
392 const struct cfg80211_chan_def *c);
393
394void cfg80211_set_dfs_state(struct wiphy *wiphy,
395 const struct cfg80211_chan_def *chandef,
396 enum nl80211_dfs_state dfs_state);
397
398void cfg80211_dfs_channels_update_work(struct work_struct *work);
399
400
Michal Kaziord4e50c52012-06-29 12:47:07 +0200401static inline int
402cfg80211_can_change_interface(struct cfg80211_registered_device *rdev,
403 struct wireless_dev *wdev,
404 enum nl80211_iftype iftype)
405{
406 return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100407 CHAN_MODE_UNDEFINED, 0);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200408}
Johannes Berg7527a782011-05-13 10:58:57 +0200409
410static inline int
411cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
412 enum nl80211_iftype iftype)
413{
414 return cfg80211_can_change_interface(rdev, NULL, iftype);
415}
416
Michal Kaziord4e50c52012-06-29 12:47:07 +0200417static inline int
418cfg80211_can_use_chan(struct cfg80211_registered_device *rdev,
419 struct wireless_dev *wdev,
420 struct ieee80211_channel *chan,
421 enum cfg80211_chan_mode chanmode)
422{
423 return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100424 chan, chanmode, 0);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200425}
426
Simon Wunderlich04f39042013-02-08 18:16:19 +0100427static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
428{
429 unsigned long end = jiffies;
430
431 if (end >= start)
432 return jiffies_to_msecs(end - start);
433
434 return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
435}
436
Michal Kazior26ab9a02012-06-29 12:47:00 +0200437void
Johannes Berg8e95ea42012-07-10 19:39:02 +0200438cfg80211_get_chan_state(struct wireless_dev *wdev,
Michal Kazior26ab9a02012-06-29 12:47:00 +0200439 struct ieee80211_channel **chan,
440 enum cfg80211_chan_mode *chanmode);
441
Johannes Berge8c9bd52012-06-06 08:18:22 +0200442int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
Johannes Berg683b6d32012-11-08 21:25:48 +0100443 struct cfg80211_chan_def *chandef);
Johannes Berg59bbb6f2009-08-07 17:22:35 +0200444
Johannes Berg34850ab2011-07-18 18:08:35 +0200445int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
446 const u8 *rates, unsigned int n_rates,
447 u32 *mask);
448
Johannes Berg56d18932011-05-09 18:41:15 +0200449int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
450 u32 beacon_int);
451
Michal Kaziordbbae262012-06-29 12:47:01 +0200452void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
453 enum nl80211_iftype iftype, int num);
454
Stanislaw Gruszka81256962013-02-28 10:55:25 +0100455void cfg80211_leave(struct cfg80211_registered_device *rdev,
456 struct wireless_dev *wdev);
457
Johannes Bergf9f47522013-03-19 15:04:07 +0100458void cfg80211_stop_p2p_device(struct cfg80211_registered_device *rdev,
459 struct wireless_dev *wdev);
460
Michal Kaziord4e50c52012-06-29 12:47:07 +0200461#define CFG80211_MAX_NUM_DIFFERENT_CHANNELS 10
462
Johannes Bergf7969962009-08-21 12:23:49 +0200463#ifdef CONFIG_CFG80211_DEVELOPER_WARNINGS
464#define CFG80211_DEV_WARN_ON(cond) WARN_ON(cond)
465#else
466/*
467 * Trick to enable using it as a condition,
468 * and also not give a warning when it's
469 * not used that way.
470 */
471#define CFG80211_DEV_WARN_ON(cond) ({bool __r = (cond); __r; })
472#endif
473
Johannes Berg704232c2007-04-23 12:20:05 -0700474#endif /* __NET_WIRELESS_CORE_H */