blob: 6f6f75609852bc0e3a840cd6f70366f28f3a99fc [file] [log] [blame]
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 */
Johannes Bergf9d15d12014-01-22 11:14:19 +020065 struct sk_buff *scan_msg;
Luciano Coelho807f8a82011-05-11 17:09:35 +030066 struct cfg80211_sched_scan_request *sched_scan_req;
Dan Williamscb3a8ee2009-02-11 17:14:43 -050067 unsigned long suspend_at;
Johannes Berg667503dd2009-07-07 03:56:11 +020068 struct work_struct scan_done_wk;
Luciano Coelho807f8a82011-05-11 17:09:35 +030069 struct work_struct sched_scan_results_wk;
Johannes Berg2a519312009-02-10 21:25:55 +010070
Johannes Bergad7e7182013-11-13 13:37:47 +010071 struct genl_info *cur_cmd_info;
Johannes Bergaff89a92009-07-01 21:26:51 +020072
Johannes Berg6829c872009-07-02 09:13:27 +020073 struct work_struct conn_work;
Johannes Berg667503dd2009-07-07 03:56:11 +020074 struct work_struct event_work;
Johannes Berg6829c872009-07-02 09:13:27 +020075
Simon Wunderlich04f39042013-02-08 18:16:19 +010076 struct delayed_work dfs_update_channels_wk;
77
Arend van Spriel5de17982013-04-18 15:49:00 +020078 /* netlink port which started critical protocol (0 means not started) */
79 u32 crit_proto_nlportid;
80
Amitkumar Karwarbe29b992013-06-28 11:51:26 -070081 struct cfg80211_coalesce *coalesce;
82
Johannes Berg78f22b62014-03-24 17:57:27 +010083 spinlock_t destroy_list_lock;
84 struct list_head destroy_list;
85 struct work_struct destroy_work;
86
Johannes Berg704232c2007-04-23 12:20:05 -070087 /* must be last because of the way we do wiphy_priv(),
88 * and it should at least be aligned to NETDEV_ALIGN */
Johannes Berg1c06ef92012-12-28 12:22:02 +010089 struct wiphy wiphy __aligned(NETDEV_ALIGN);
Johannes Berg704232c2007-04-23 12:20:05 -070090};
91
92static inline
93struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
94{
95 BUG_ON(!wiphy);
96 return container_of(wiphy, struct cfg80211_registered_device, wiphy);
97}
98
Johannes Bergff1b6e62011-05-04 15:37:28 +020099static inline void
100cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
101{
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200102#ifdef CONFIG_PM
Johannes Bergff1b6e62011-05-04 15:37:28 +0200103 int i;
104
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200105 if (!rdev->wiphy.wowlan_config)
Johannes Bergff1b6e62011-05-04 15:37:28 +0200106 return;
Johannes Berg6abb9cb2013-05-15 09:30:07 +0200107 for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
108 kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
109 kfree(rdev->wiphy.wowlan_config->patterns);
110 if (rdev->wiphy.wowlan_config->tcp &&
111 rdev->wiphy.wowlan_config->tcp->sock)
112 sock_release(rdev->wiphy.wowlan_config->tcp->sock);
113 kfree(rdev->wiphy.wowlan_config->tcp);
114 kfree(rdev->wiphy.wowlan_config);
115#endif
Johannes Bergff1b6e62011-05-04 15:37:28 +0200116}
Alban Browaeyse60d7442009-11-25 15:13:00 +0100117
118extern struct workqueue_struct *cfg80211_wq;
Johannes Berg79c97e92009-07-07 03:56:12 +0200119extern struct list_head cfg80211_rdev_list;
Johannes Bergf5ea9122009-08-07 16:17:38 +0200120extern int cfg80211_rdev_list_generation;
Johannes Berg704232c2007-04-23 12:20:05 -0700121
Johannes Berg2a519312009-02-10 21:25:55 +0100122struct cfg80211_internal_bss {
123 struct list_head list;
Johannes Berg776b3582013-02-01 02:06:18 +0100124 struct list_head hidden_list;
Johannes Berg2a519312009-02-10 21:25:55 +0100125 struct rb_node rbn;
126 unsigned long ts;
Johannes Berg776b3582013-02-01 02:06:18 +0100127 unsigned long refcount;
Johannes Berg19957bb2009-07-02 17:20:43 +0200128 atomic_t hold;
Kalle Valoa08c1c12009-03-22 21:57:28 +0200129
Johannes Berg2a519312009-02-10 21:25:55 +0100130 /* must be last because of priv member */
131 struct cfg80211_bss pub;
132};
133
Johannes Berg19957bb2009-07-02 17:20:43 +0200134static inline struct cfg80211_internal_bss *bss_from_pub(struct cfg80211_bss *pub)
135{
136 return container_of(pub, struct cfg80211_internal_bss, pub);
137}
138
139static inline void cfg80211_hold_bss(struct cfg80211_internal_bss *bss)
140{
141 atomic_inc(&bss->hold);
142}
143
144static inline void cfg80211_unhold_bss(struct cfg80211_internal_bss *bss)
145{
146 int r = atomic_dec_return(&bss->hold);
147 WARN_ON(r < 0);
148}
149
150
Johannes Berg79c97e92009-07-07 03:56:12 +0200151struct cfg80211_registered_device *cfg80211_rdev_by_wiphy_idx(int wiphy_idx);
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500152int get_wiphy_idx(struct wiphy *wiphy);
153
Luis R. Rodriguez806a9e32009-02-21 00:04:26 -0500154struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx);
155
Johannes Berg463d0182009-07-14 00:33:35 +0200156int cfg80211_switch_netns(struct cfg80211_registered_device *rdev,
157 struct net *net);
Johannes Berg55682962007-09-20 13:09:35 -0400158
Johannes Berg667503dd2009-07-07 03:56:11 +0200159static inline void wdev_lock(struct wireless_dev *wdev)
160 __acquires(wdev)
161{
162 mutex_lock(&wdev->mtx);
163 __acquire(wdev->mtx);
164}
165
166static inline void wdev_unlock(struct wireless_dev *wdev)
167 __releases(wdev)
168{
169 __release(wdev->mtx);
170 mutex_unlock(&wdev->mtx);
171}
172
Johannes Berg46a5eba2010-09-15 13:28:15 +0200173#define ASSERT_WDEV_LOCK(wdev) lockdep_assert_held(&(wdev)->mtx)
Johannes Berg667503dd2009-07-07 03:56:11 +0200174
Michal Kaziordbbae262012-06-29 12:47:01 +0200175static inline bool cfg80211_has_monitors_only(struct cfg80211_registered_device *rdev)
176{
Johannes Bergc5a7e582012-07-04 13:28:18 +0200177 ASSERT_RTNL();
Michal Kaziordbbae262012-06-29 12:47:01 +0200178
179 return rdev->num_running_ifaces == rdev->num_running_monitor_ifaces &&
180 rdev->num_running_ifaces > 0;
181}
182
Johannes Berg667503dd2009-07-07 03:56:11 +0200183enum cfg80211_event_type {
184 EVENT_CONNECT_RESULT,
185 EVENT_ROAMED,
186 EVENT_DISCONNECTED,
187 EVENT_IBSS_JOINED,
188};
189
190struct cfg80211_event {
191 struct list_head list;
192 enum cfg80211_event_type type;
193
194 union {
195 struct {
196 u8 bssid[ETH_ALEN];
197 const u8 *req_ie;
198 const u8 *resp_ie;
199 size_t req_ie_len;
200 size_t resp_ie_len;
201 u16 status;
202 } cr;
203 struct {
Johannes Berg667503dd2009-07-07 03:56:11 +0200204 const u8 *req_ie;
205 const u8 *resp_ie;
206 size_t req_ie_len;
207 size_t resp_ie_len;
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530208 struct cfg80211_bss *bss;
Johannes Berg667503dd2009-07-07 03:56:11 +0200209 } rm;
210 struct {
211 const u8 *ie;
212 size_t ie_len;
213 u16 reason;
214 } dc;
215 struct {
216 u8 bssid[ETH_ALEN];
Antonio Quartullife94f3a2014-01-29 17:53:43 +0100217 struct ieee80211_channel *channel;
Johannes Berg667503dd2009-07-07 03:56:11 +0200218 } ij;
219 };
220};
221
Johannes Bergfffd0932009-07-08 14:22:54 +0200222struct cfg80211_cached_keys {
223 struct key_params params[6];
224 u8 data[6][WLAN_MAX_KEY_LEN];
225 int def, defmgmt;
226};
227
Michal Kazior26ab9a02012-06-29 12:47:00 +0200228enum cfg80211_chan_mode {
229 CHAN_MODE_UNDEFINED,
230 CHAN_MODE_SHARED,
231 CHAN_MODE_EXCLUSIVE,
232};
233
Ben Greear37c73b52012-10-26 14:49:25 -0700234struct cfg80211_beacon_registration {
235 struct list_head list;
236 u32 nlportid;
237};
Johannes Berg667503dd2009-07-07 03:56:11 +0200238
Johannes Berg78f22b62014-03-24 17:57:27 +0100239struct cfg80211_iface_destroy {
240 struct list_head list;
241 u32 nlportid;
242};
243
244void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev);
245
Johannes Berg704232c2007-04-23 12:20:05 -0700246/* free object */
Joe Perchesc1b12032013-10-18 13:48:25 -0700247void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
Johannes Berg704232c2007-04-23 12:20:05 -0700248
Joe Perchesc1b12032013-10-18 13:48:25 -0700249int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
250 char *newname);
Johannes Berg55682962007-09-20 13:09:35 -0400251
Johannes Berg8318d782008-01-24 19:38:38 +0100252void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
Johannes Berg8318d782008-01-24 19:38:38 +0100253
Johannes Berg2a519312009-02-10 21:25:55 +0100254void cfg80211_bss_expire(struct cfg80211_registered_device *dev);
Dan Williamscb3a8ee2009-02-11 17:14:43 -0500255void cfg80211_bss_age(struct cfg80211_registered_device *dev,
256 unsigned long age_secs);
Johannes Berg2a519312009-02-10 21:25:55 +0100257
Johannes Berg04a773a2009-04-19 21:24:32 +0200258/* IBSS */
259int cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
260 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200261 struct cfg80211_ibss_params *params,
262 struct cfg80211_cached_keys *connkeys);
Johannes Berg9d308422009-04-20 18:43:46 +0200263void cfg80211_clear_ibss(struct net_device *dev, bool nowext);
Johannes Berg98d3a7c2009-11-18 13:03:43 +0100264int __cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
265 struct net_device *dev, bool nowext);
Johannes Berg04a773a2009-04-19 21:24:32 +0200266int cfg80211_leave_ibss(struct cfg80211_registered_device *rdev,
Johannes Berg9d308422009-04-20 18:43:46 +0200267 struct net_device *dev, bool nowext);
Antonio Quartullife94f3a2014-01-29 17:53:43 +0100268void __cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid,
269 struct ieee80211_channel *channel);
Johannes Bergfffd0932009-07-08 14:22:54 +0200270int cfg80211_ibss_wext_join(struct cfg80211_registered_device *rdev,
271 struct wireless_dev *wdev);
Johannes Berg04a773a2009-04-19 21:24:32 +0200272
Johannes Berg29cbe682010-12-03 09:20:44 +0100273/* mesh */
274extern const struct mesh_config default_mesh_config;
Javier Cardonac80d5452010-12-16 17:37:49 -0800275extern const struct mesh_setup default_mesh_setup;
Johannes Berg29cbe682010-12-03 09:20:44 +0100276int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
277 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200278 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100279 const struct mesh_config *conf);
280int cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
281 struct net_device *dev,
Johannes Bergcc1d2802012-05-16 23:50:20 +0200282 struct mesh_setup *setup,
Johannes Berg29cbe682010-12-03 09:20:44 +0100283 const struct mesh_config *conf);
284int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev,
285 struct net_device *dev);
Johannes Berg683b6d32012-11-08 21:25:48 +0100286int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev,
287 struct wireless_dev *wdev,
288 struct cfg80211_chan_def *chandef);
Johannes Berg29cbe682010-12-03 09:20:44 +0100289
Michal Kazior60771782012-06-29 12:46:56 +0200290/* AP */
291int cfg80211_stop_ap(struct cfg80211_registered_device *rdev,
Ilan Peer7c8d5e02014-02-25 15:33:38 +0200292 struct net_device *dev, bool notify);
Michal Kazior60771782012-06-29 12:46:56 +0200293
Johannes Berg19957bb2009-07-02 17:20:43 +0200294/* MLME */
295int cfg80211_mlme_auth(struct cfg80211_registered_device *rdev,
Johannes Berg91bf9b22013-05-15 17:44:01 +0200296 struct net_device *dev,
297 struct ieee80211_channel *chan,
298 enum nl80211_auth_type auth_type,
299 const u8 *bssid,
Johannes Berg19957bb2009-07-02 17:20:43 +0200300 const u8 *ssid, int ssid_len,
Johannes Bergfffd0932009-07-08 14:22:54 +0200301 const u8 *ie, int ie_len,
Jouni Malinene39e5b52012-09-30 19:29:39 +0300302 const u8 *key, int key_len, int key_idx,
303 const u8 *sae_data, int sae_data_len);
Johannes Berg19957bb2009-07-02 17:20:43 +0200304int cfg80211_mlme_assoc(struct cfg80211_registered_device *rdev,
Johannes Bergf62fab72013-02-21 20:09:09 +0100305 struct net_device *dev,
306 struct ieee80211_channel *chan,
307 const u8 *bssid,
Johannes Berg3e5d7642009-07-07 14:37:26 +0200308 const u8 *ssid, int ssid_len,
Johannes Bergf62fab72013-02-21 20:09:09 +0100309 struct cfg80211_assoc_request *req);
Johannes Berg19957bb2009-07-02 17:20:43 +0200310int cfg80211_mlme_deauth(struct cfg80211_registered_device *rdev,
311 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300312 const u8 *ie, int ie_len, u16 reason,
313 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200314int cfg80211_mlme_disassoc(struct cfg80211_registered_device *rdev,
315 struct net_device *dev, const u8 *bssid,
Jouni Malinend5cdfac2010-04-04 09:37:19 +0300316 const u8 *ie, int ie_len, u16 reason,
317 bool local_state_change);
Johannes Berg19957bb2009-07-02 17:20:43 +0200318void cfg80211_mlme_down(struct cfg80211_registered_device *rdev,
319 struct net_device *dev);
Johannes Berg2e161f72010-08-12 15:38:38 +0200320int cfg80211_mlme_register_mgmt(struct wireless_dev *wdev, u32 snd_pid,
321 u16 frame_type, const u8 *match_data,
322 int match_len);
323void cfg80211_mlme_unregister_socket(struct wireless_dev *wdev, u32 nlpid);
324void cfg80211_mlme_purge_registrations(struct wireless_dev *wdev);
325int cfg80211_mlme_mgmt_tx(struct cfg80211_registered_device *rdev,
Johannes Berg71bbc992012-06-15 15:30:18 +0200326 struct wireless_dev *wdev,
Andrei Otcheretianskib176e622013-11-18 19:06:49 +0200327 struct cfg80211_mgmt_tx_params *params,
328 u64 *cookie);
Ben Greear7e7c8922011-11-18 11:31:59 -0800329void cfg80211_oper_and_ht_capa(struct ieee80211_ht_cap *ht_capa,
330 const struct ieee80211_ht_cap *ht_capa_mask);
Johannes Bergee2aca32013-02-21 17:36:01 +0100331void cfg80211_oper_and_vht_capa(struct ieee80211_vht_cap *vht_capa,
332 const struct ieee80211_vht_cap *vht_capa_mask);
Johannes Berg19957bb2009-07-02 17:20:43 +0200333
Johannes Bergceca7b72013-05-16 00:55:45 +0200334/* SME events */
Samuel Ortizb23aa672009-07-01 21:26:54 +0200335int cfg80211_connect(struct cfg80211_registered_device *rdev,
336 struct net_device *dev,
Johannes Bergfffd0932009-07-08 14:22:54 +0200337 struct cfg80211_connect_params *connect,
Johannes Berg83739b02013-05-15 17:44:01 +0200338 struct cfg80211_cached_keys *connkeys,
339 const u8 *prev_bssid);
Johannes Bergceca7b72013-05-16 00:55:45 +0200340void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
341 const u8 *req_ie, size_t req_ie_len,
342 const u8 *resp_ie, size_t resp_ie_len,
343 u16 status, bool wextev,
344 struct cfg80211_bss *bss);
345void __cfg80211_disconnected(struct net_device *dev, const u8 *ie,
346 size_t ie_len, u16 reason, bool from_ap);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200347int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
Johannes Bergf2129352009-07-01 21:26:56 +0200348 struct net_device *dev, u16 reason,
349 bool wextev);
Jouni Malinened9d0102011-05-16 19:40:15 +0300350void __cfg80211_roamed(struct wireless_dev *wdev,
Vasanthakumar Thiagarajanadbde342011-12-08 14:28:47 +0530351 struct cfg80211_bss *bss,
Johannes Berg667503dd2009-07-07 03:56:11 +0200352 const u8 *req_ie, size_t req_ie_len,
353 const u8 *resp_ie, size_t resp_ie_len);
Johannes Bergfffd0932009-07-08 14:22:54 +0200354int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev,
355 struct wireless_dev *wdev);
Samuel Ortizb23aa672009-07-01 21:26:54 +0200356
Johannes Bergceca7b72013-05-16 00:55:45 +0200357/* SME implementation */
Johannes Berg6829c872009-07-02 09:13:27 +0200358void cfg80211_conn_work(struct work_struct *work);
Johannes Bergceca7b72013-05-16 00:55:45 +0200359void cfg80211_sme_scan_done(struct net_device *dev);
360bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status);
361void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len);
362void cfg80211_sme_disassoc(struct wireless_dev *wdev);
363void cfg80211_sme_deauth(struct wireless_dev *wdev);
364void cfg80211_sme_auth_timeout(struct wireless_dev *wdev);
365void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev);
Johannes Berg6829c872009-07-02 09:13:27 +0200366
Johannes Berg08645122009-05-11 13:54:58 +0200367/* internal helpers */
Jouni Malinen38ba3c52011-09-21 18:14:56 +0300368bool cfg80211_supported_cipher_suite(struct wiphy *wiphy, u32 cipher);
Johannes Bergfffd0932009-07-08 14:22:54 +0200369int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
370 struct key_params *params, int key_idx,
Johannes Berge31b8212010-10-05 19:39:30 +0200371 bool pairwise, const u8 *mac_addr);
Johannes Berg667503dd2009-07-07 03:56:11 +0200372void __cfg80211_scan_done(struct work_struct *wk);
Johannes Bergf9d15d12014-01-22 11:14:19 +0200373void ___cfg80211_scan_done(struct cfg80211_registered_device *rdev,
374 bool send_message);
Luciano Coelho807f8a82011-05-11 17:09:35 +0300375void __cfg80211_sched_scan_results(struct work_struct *wk);
376int __cfg80211_stop_sched_scan(struct cfg80211_registered_device *rdev,
377 bool driver_initiated);
Johannes Bergfffd0932009-07-08 14:22:54 +0200378void cfg80211_upload_connect_keys(struct wireless_dev *wdev);
Johannes Berg3d54d252009-08-21 14:51:05 +0200379int cfg80211_change_iface(struct cfg80211_registered_device *rdev,
380 struct net_device *dev, enum nl80211_iftype ntype,
381 u32 *flags, struct vif_params *params);
382void cfg80211_process_rdev_events(struct cfg80211_registered_device *rdev);
Daniel Drake1f6fc432012-08-02 18:41:48 +0100383void cfg80211_process_wdev_events(struct wireless_dev *wdev);
Johannes Berg08645122009-05-11 13:54:58 +0200384
Michal Kaziord4e50c52012-06-29 12:47:07 +0200385int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
386 struct wireless_dev *wdev,
387 enum nl80211_iftype iftype,
388 struct ieee80211_channel *chan,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100389 enum cfg80211_chan_mode chanmode,
390 u8 radar_detect);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200391
Janusz Dziedzicfe7c3a12013-11-05 14:48:48 +0100392/**
393 * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable
394 * @wiphy: the wiphy to validate against
395 * @chandef: the channel definition to check
396 *
397 * Checks if chandef is usable and we can/need start CAC on such channel.
398 *
399 * Return: Return true if all channels available and at least
400 * one channel require CAC (NL80211_DFS_USABLE)
401 */
402bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy,
403 const struct cfg80211_chan_def *chandef);
404
Simon Wunderlich04f39042013-02-08 18:16:19 +0100405void cfg80211_set_dfs_state(struct wiphy *wiphy,
406 const struct cfg80211_chan_def *chandef,
407 enum nl80211_dfs_state dfs_state);
408
409void cfg80211_dfs_channels_update_work(struct work_struct *work);
410
Janusz Dziedzic31559f32014-02-21 19:46:13 +0100411unsigned int
412cfg80211_chandef_dfs_cac_time(struct wiphy *wiphy,
413 const struct cfg80211_chan_def *chandef);
Simon Wunderlich04f39042013-02-08 18:16:19 +0100414
Michal Kaziord4e50c52012-06-29 12:47:07 +0200415static inline int
416cfg80211_can_change_interface(struct cfg80211_registered_device *rdev,
417 struct wireless_dev *wdev,
418 enum nl80211_iftype iftype)
419{
420 return cfg80211_can_use_iftype_chan(rdev, wdev, iftype, NULL,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100421 CHAN_MODE_UNDEFINED, 0);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200422}
Johannes Berg7527a782011-05-13 10:58:57 +0200423
424static inline int
425cfg80211_can_add_interface(struct cfg80211_registered_device *rdev,
426 enum nl80211_iftype iftype)
427{
Emmanuel Grumbachf38dd582013-09-17 15:20:13 +0300428 if (rfkill_blocked(rdev->rfkill))
429 return -ERFKILL;
430
Johannes Berg7527a782011-05-13 10:58:57 +0200431 return cfg80211_can_change_interface(rdev, NULL, iftype);
432}
433
Michal Kaziord4e50c52012-06-29 12:47:07 +0200434static inline int
435cfg80211_can_use_chan(struct cfg80211_registered_device *rdev,
436 struct wireless_dev *wdev,
437 struct ieee80211_channel *chan,
438 enum cfg80211_chan_mode chanmode)
439{
440 return cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
Simon Wunderlich11c4a072013-01-08 14:04:07 +0100441 chan, chanmode, 0);
Michal Kaziord4e50c52012-06-29 12:47:07 +0200442}
443
Simon Wunderlich04f39042013-02-08 18:16:19 +0100444static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
445{
446 unsigned long end = jiffies;
447
448 if (end >= start)
449 return jiffies_to_msecs(end - start);
450
451 return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
452}
453
Michal Kazior26ab9a02012-06-29 12:47:00 +0200454void
Johannes Berg8e95ea42012-07-10 19:39:02 +0200455cfg80211_get_chan_state(struct wireless_dev *wdev,
Michal Kazior26ab9a02012-06-29 12:47:00 +0200456 struct ieee80211_channel **chan,
Michal Kazior9e0e2962014-01-29 14:22:27 +0100457 enum cfg80211_chan_mode *chanmode,
458 u8 *radar_detect);
Michal Kazior26ab9a02012-06-29 12:47:00 +0200459
Johannes Berge8c9bd52012-06-06 08:18:22 +0200460int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
Johannes Berg683b6d32012-11-08 21:25:48 +0100461 struct cfg80211_chan_def *chandef);
Johannes Berg59bbb6f2009-08-07 17:22:35 +0200462
Johannes Berg34850ab2011-07-18 18:08:35 +0200463int ieee80211_get_ratemask(struct ieee80211_supported_band *sband,
464 const u8 *rates, unsigned int n_rates,
465 u32 *mask);
466
Johannes Berg56d18932011-05-09 18:41:15 +0200467int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
468 u32 beacon_int);
469
Michal Kaziordbbae262012-06-29 12:47:01 +0200470void cfg80211_update_iface_num(struct cfg80211_registered_device *rdev,
471 enum nl80211_iftype iftype, int num);
472
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 */