blob: 4bc8a9250cfda4900ecd848e5299cf3e50c87447 [file] [log] [blame]
Jiri Bencf0706e82007-05-05 11:45:53 -07001/*
2 * mac80211 configuration hooks for cfg80211
3 *
Jouni Malinen026331c2010-02-15 12:53:10 +02004 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
Jiri Bencf0706e82007-05-05 11:45:53 -07005 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
Johannes Berge8cbb4c2007-12-19 02:03:30 +01009#include <linux/ieee80211.h>
Jiri Bencf0706e82007-05-05 11:45:53 -070010#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090012#include <linux/slab.h>
Eric W. Biederman881d9662007-09-17 11:56:21 -070013#include <net/net_namespace.h>
Johannes Berg5dfdaf52007-12-19 02:03:33 +010014#include <linux/rcupdate.h>
Jiri Bencf0706e82007-05-05 11:45:53 -070015#include <net/cfg80211.h>
16#include "ieee80211_i.h"
Johannes Berg24487982009-04-23 18:52:52 +020017#include "driver-ops.h"
Michael Wue0eb6852007-09-18 17:29:21 -040018#include "cfg.h"
Johannes Berg2c8dccc2008-04-08 15:14:40 -040019#include "rate.h"
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +010020#include "mesh.h"
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +010021
Johannes Bergf9e10ce2010-12-03 09:20:42 +010022static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type,
24 u32 *flags,
25 struct vif_params *params)
Jiri Bencf0706e82007-05-05 11:45:53 -070026{
27 struct ieee80211_local *local = wiphy_priv(wiphy);
Michael Wu8cc9a732008-01-31 19:48:23 +010028 struct net_device *dev;
29 struct ieee80211_sub_if_data *sdata;
30 int err;
Jiri Bencf0706e82007-05-05 11:45:53 -070031
Johannes Berg05c914f2008-09-11 00:01:58 +020032 err = ieee80211_if_add(local, name, &dev, type, params);
Johannes Bergf9e10ce2010-12-03 09:20:42 +010033 if (err)
34 return ERR_PTR(err);
Michael Wu8cc9a732008-01-31 19:48:23 +010035
Johannes Bergf9e10ce2010-12-03 09:20:42 +010036 if (type == NL80211_IFTYPE_MONITOR && flags) {
37 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38 sdata->u.mntr_flags = *flags;
39 }
40
41 return dev;
Jiri Bencf0706e82007-05-05 11:45:53 -070042}
43
Johannes Berg463d0182009-07-14 00:33:35 +020044static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
Jiri Bencf0706e82007-05-05 11:45:53 -070045{
Johannes Berg463d0182009-07-14 00:33:35 +020046 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
Jiri Bencf0706e82007-05-05 11:45:53 -070047
Johannes Berg75636522008-07-09 14:40:35 +020048 return 0;
Jiri Bencf0706e82007-05-05 11:45:53 -070049}
50
Johannes Berge36d56b2009-06-09 21:04:43 +020051static int ieee80211_change_iface(struct wiphy *wiphy,
52 struct net_device *dev,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +010053 enum nl80211_iftype type, u32 *flags,
54 struct vif_params *params)
Johannes Berg42613db2007-09-28 21:52:27 +020055{
Johannes Berg9607e6b2009-12-23 13:15:31 +010056 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Bergf3947e22008-07-09 14:40:36 +020057 int ret;
Johannes Berg42613db2007-09-28 21:52:27 +020058
Johannes Berg05c914f2008-09-11 00:01:58 +020059 ret = ieee80211_if_change_type(sdata, type);
Johannes Bergf3947e22008-07-09 14:40:36 +020060 if (ret)
61 return ret;
Johannes Berg42613db2007-09-28 21:52:27 +020062
Johannes Berg9bc383d2009-11-19 11:55:19 +010063 if (type == NL80211_IFTYPE_AP_VLAN &&
64 params && params->use_4addr == 0)
65 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
66 else if (type == NL80211_IFTYPE_STATION &&
67 params && params->use_4addr >= 0)
68 sdata->u.mgd.use_4addr = params->use_4addr;
69
Christian Lamparter85416a42010-10-02 13:17:07 +020070 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
71 struct ieee80211_local *local = sdata->local;
72
73 if (ieee80211_sdata_running(sdata)) {
74 /*
75 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
76 * changed while the interface is up.
77 * Else we would need to add a lot of cruft
78 * to update everything:
79 * cooked_mntrs, monitor and all fif_* counters
80 * reconfigure hardware
81 */
82 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
83 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
84 return -EBUSY;
85
86 ieee80211_adjust_monitor_flags(sdata, -1);
87 sdata->u.mntr_flags = *flags;
88 ieee80211_adjust_monitor_flags(sdata, 1);
89
90 ieee80211_configure_filter(local);
91 } else {
92 /*
93 * Because the interface is down, ieee80211_do_stop
94 * and ieee80211_do_open take care of "everything"
95 * mentioned in the comment above.
96 */
97 sdata->u.mntr_flags = *flags;
98 }
99 }
Felix Fietkauf7917af2010-04-27 00:26:34 +0200100
Johannes Berg42613db2007-09-28 21:52:27 +0200101 return 0;
102}
103
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100104static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
Johannes Berge31b8212010-10-05 19:39:30 +0200105 u8 key_idx, bool pairwise, const u8 *mac_addr,
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100106 struct key_params *params)
107{
Johannes Berg26a58452010-08-27 12:35:55 +0200108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100109 struct sta_info *sta = NULL;
Johannes Bergdb4d1162008-02-25 16:27:45 +0100110 struct ieee80211_key *key;
Johannes Berg3b967662008-04-08 17:56:52 +0200111 int err;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100112
Johannes Berg26a58452010-08-27 12:35:55 +0200113 if (!ieee80211_sdata_running(sdata))
Johannes Bergad0e2b52010-06-01 10:19:19 +0200114 return -ENETDOWN;
115
Johannes Berg97359d12010-08-10 09:46:38 +0200116 /* reject WEP and TKIP keys if WEP failed to initialize */
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100117 switch (params->cipher) {
118 case WLAN_CIPHER_SUITE_WEP40:
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100119 case WLAN_CIPHER_SUITE_TKIP:
Johannes Berg97359d12010-08-10 09:46:38 +0200120 case WLAN_CIPHER_SUITE_WEP104:
121 if (IS_ERR(sdata->local->wep_tx_tfm))
122 return -EINVAL;
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200123 break;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100124 default:
Johannes Berg97359d12010-08-10 09:46:38 +0200125 break;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100126 }
127
Johannes Berg97359d12010-08-10 09:46:38 +0200128 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
129 params->key, params->seq_len, params->seq);
Ben Hutchings1ac62ba2010-08-01 17:37:03 +0100130 if (IS_ERR(key))
131 return PTR_ERR(key);
Johannes Bergdb4d1162008-02-25 16:27:45 +0100132
Johannes Berge31b8212010-10-05 19:39:30 +0200133 if (pairwise)
134 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
135
Johannes Bergad0e2b52010-06-01 10:19:19 +0200136 mutex_lock(&sdata->local->sta_mtx);
Johannes Berg3b967662008-04-08 17:56:52 +0200137
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100138 if (mac_addr) {
Felix Fietkau0e5ded52010-01-08 18:10:58 +0100139 sta = sta_info_get_bss(sdata, mac_addr);
Johannes Bergdb4d1162008-02-25 16:27:45 +0100140 if (!sta) {
Jouni Malinen32162a42010-07-26 15:52:03 -0700141 ieee80211_key_free(sdata->local, key);
Johannes Berg3b967662008-04-08 17:56:52 +0200142 err = -ENOENT;
143 goto out_unlock;
Johannes Bergdb4d1162008-02-25 16:27:45 +0100144 }
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100145 }
146
Johannes Berg3ffc2a92010-08-27 14:26:52 +0300147 err = ieee80211_key_link(key, sdata, sta);
148 if (err)
149 ieee80211_key_free(sdata->local, key);
Johannes Bergdb4d1162008-02-25 16:27:45 +0100150
Johannes Berg3b967662008-04-08 17:56:52 +0200151 out_unlock:
Johannes Bergad0e2b52010-06-01 10:19:19 +0200152 mutex_unlock(&sdata->local->sta_mtx);
Johannes Berg3b967662008-04-08 17:56:52 +0200153
154 return err;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100155}
156
157static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
Johannes Berge31b8212010-10-05 19:39:30 +0200158 u8 key_idx, bool pairwise, const u8 *mac_addr)
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100159{
160 struct ieee80211_sub_if_data *sdata;
161 struct sta_info *sta;
162 int ret;
163
164 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
165
Johannes Bergad0e2b52010-06-01 10:19:19 +0200166 mutex_lock(&sdata->local->sta_mtx);
Johannes Berg3b967662008-04-08 17:56:52 +0200167
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100168 if (mac_addr) {
Johannes Berg3b967662008-04-08 17:56:52 +0200169 ret = -ENOENT;
170
Felix Fietkau0e5ded52010-01-08 18:10:58 +0100171 sta = sta_info_get_bss(sdata, mac_addr);
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100172 if (!sta)
Johannes Berg3b967662008-04-08 17:56:52 +0200173 goto out_unlock;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100174
Johannes Berge31b8212010-10-05 19:39:30 +0200175 if (pairwise) {
176 if (sta->ptk) {
177 ieee80211_key_free(sdata->local, sta->ptk);
178 ret = 0;
179 }
180 } else {
181 if (sta->gtk[key_idx]) {
182 ieee80211_key_free(sdata->local,
183 sta->gtk[key_idx]);
184 ret = 0;
185 }
Johannes Berg3b967662008-04-08 17:56:52 +0200186 }
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100187
Johannes Berg3b967662008-04-08 17:56:52 +0200188 goto out_unlock;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100189 }
190
Johannes Berg3b967662008-04-08 17:56:52 +0200191 if (!sdata->keys[key_idx]) {
192 ret = -ENOENT;
193 goto out_unlock;
194 }
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100195
Jouni Malinen32162a42010-07-26 15:52:03 -0700196 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
Johannes Bergdb4d1162008-02-25 16:27:45 +0100197 WARN_ON(sdata->keys[key_idx]);
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100198
Johannes Berg3b967662008-04-08 17:56:52 +0200199 ret = 0;
200 out_unlock:
Johannes Bergad0e2b52010-06-01 10:19:19 +0200201 mutex_unlock(&sdata->local->sta_mtx);
Johannes Berg3b967662008-04-08 17:56:52 +0200202
203 return ret;
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100204}
205
Johannes Berg62da92f2007-12-19 02:03:31 +0100206static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
Johannes Berge31b8212010-10-05 19:39:30 +0200207 u8 key_idx, bool pairwise, const u8 *mac_addr,
208 void *cookie,
Johannes Berg62da92f2007-12-19 02:03:31 +0100209 void (*callback)(void *cookie,
210 struct key_params *params))
211{
Johannes Berg14db74b2008-07-29 13:22:52 +0200212 struct ieee80211_sub_if_data *sdata;
Johannes Berg62da92f2007-12-19 02:03:31 +0100213 struct sta_info *sta = NULL;
214 u8 seq[6] = {0};
215 struct key_params params;
Johannes Berge31b8212010-10-05 19:39:30 +0200216 struct ieee80211_key *key = NULL;
Johannes Berg62da92f2007-12-19 02:03:31 +0100217 u32 iv32;
218 u16 iv16;
219 int err = -ENOENT;
220
Johannes Berg14db74b2008-07-29 13:22:52 +0200221 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
222
Johannes Berg3b967662008-04-08 17:56:52 +0200223 rcu_read_lock();
224
Johannes Berg62da92f2007-12-19 02:03:31 +0100225 if (mac_addr) {
Felix Fietkau0e5ded52010-01-08 18:10:58 +0100226 sta = sta_info_get_bss(sdata, mac_addr);
Johannes Berg62da92f2007-12-19 02:03:31 +0100227 if (!sta)
228 goto out;
229
Johannes Berge31b8212010-10-05 19:39:30 +0200230 if (pairwise)
231 key = sta->ptk;
232 else if (key_idx < NUM_DEFAULT_KEYS)
233 key = sta->gtk[key_idx];
Johannes Berg62da92f2007-12-19 02:03:31 +0100234 } else
235 key = sdata->keys[key_idx];
236
237 if (!key)
238 goto out;
239
240 memset(&params, 0, sizeof(params));
241
Johannes Berg97359d12010-08-10 09:46:38 +0200242 params.cipher = key->conf.cipher;
Johannes Berg62da92f2007-12-19 02:03:31 +0100243
Johannes Berg97359d12010-08-10 09:46:38 +0200244 switch (key->conf.cipher) {
245 case WLAN_CIPHER_SUITE_TKIP:
Harvey Harrisonb0f76b32008-05-14 16:26:19 -0700246 iv32 = key->u.tkip.tx.iv32;
247 iv16 = key->u.tkip.tx.iv16;
Johannes Berg62da92f2007-12-19 02:03:31 +0100248
Johannes Berg24487982009-04-23 18:52:52 +0200249 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
250 drv_get_tkip_seq(sdata->local,
251 key->conf.hw_key_idx,
252 &iv32, &iv16);
Johannes Berg62da92f2007-12-19 02:03:31 +0100253
254 seq[0] = iv16 & 0xff;
255 seq[1] = (iv16 >> 8) & 0xff;
256 seq[2] = iv32 & 0xff;
257 seq[3] = (iv32 >> 8) & 0xff;
258 seq[4] = (iv32 >> 16) & 0xff;
259 seq[5] = (iv32 >> 24) & 0xff;
260 params.seq = seq;
261 params.seq_len = 6;
262 break;
Johannes Berg97359d12010-08-10 09:46:38 +0200263 case WLAN_CIPHER_SUITE_CCMP:
Johannes Berg62da92f2007-12-19 02:03:31 +0100264 seq[0] = key->u.ccmp.tx_pn[5];
265 seq[1] = key->u.ccmp.tx_pn[4];
266 seq[2] = key->u.ccmp.tx_pn[3];
267 seq[3] = key->u.ccmp.tx_pn[2];
268 seq[4] = key->u.ccmp.tx_pn[1];
269 seq[5] = key->u.ccmp.tx_pn[0];
270 params.seq = seq;
271 params.seq_len = 6;
272 break;
Johannes Berg97359d12010-08-10 09:46:38 +0200273 case WLAN_CIPHER_SUITE_AES_CMAC:
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200274 seq[0] = key->u.aes_cmac.tx_pn[5];
275 seq[1] = key->u.aes_cmac.tx_pn[4];
276 seq[2] = key->u.aes_cmac.tx_pn[3];
277 seq[3] = key->u.aes_cmac.tx_pn[2];
278 seq[4] = key->u.aes_cmac.tx_pn[1];
279 seq[5] = key->u.aes_cmac.tx_pn[0];
280 params.seq = seq;
281 params.seq_len = 6;
282 break;
Johannes Berg62da92f2007-12-19 02:03:31 +0100283 }
284
285 params.key = key->conf.key;
286 params.key_len = key->conf.keylen;
287
288 callback(cookie, &params);
289 err = 0;
290
291 out:
Johannes Berg3b967662008-04-08 17:56:52 +0200292 rcu_read_unlock();
Johannes Berg62da92f2007-12-19 02:03:31 +0100293 return err;
294}
295
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100296static int ieee80211_config_default_key(struct wiphy *wiphy,
297 struct net_device *dev,
Johannes Bergdbd2fd62010-12-09 19:58:59 +0100298 u8 key_idx, bool uni,
299 bool multi)
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100300{
Johannes Bergad0e2b52010-06-01 10:19:19 +0200301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100302
Johannes Bergf7e01042010-12-09 19:49:02 +0100303 ieee80211_set_default_key(sdata, key_idx, uni, multi);
Johannes Berge8cbb4c2007-12-19 02:03:30 +0100304
305 return 0;
306}
307
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200308static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
309 struct net_device *dev,
310 u8 key_idx)
311{
Johannes Berg66c52422010-07-22 13:58:51 +0200312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200313
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200314 ieee80211_set_default_mgmt_key(sdata, key_idx);
315
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +0200316 return 0;
317}
318
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100319static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
320{
Johannes Bergd0709a62008-02-25 16:27:46 +0100321 struct ieee80211_sub_if_data *sdata = sta->sdata;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100322
Johannes Bergf5ea9122009-08-07 16:17:38 +0200323 sinfo->generation = sdata->local->sta_generation;
324
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100325 sinfo->filled = STATION_INFO_INACTIVE_TIME |
326 STATION_INFO_RX_BYTES |
Henning Rogge420e7fa2008-12-11 22:04:19 +0100327 STATION_INFO_TX_BYTES |
Jouni Malinen98c8a60a2009-02-17 13:24:57 +0200328 STATION_INFO_RX_PACKETS |
329 STATION_INFO_TX_PACKETS |
Bruno Randolfb206b4e2010-10-06 18:34:12 +0900330 STATION_INFO_TX_RETRIES |
331 STATION_INFO_TX_FAILED |
Ben Greear5a5c7312010-10-07 16:39:20 -0700332 STATION_INFO_TX_BITRATE |
333 STATION_INFO_RX_DROP_MISC;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100334
335 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
336 sinfo->rx_bytes = sta->rx_bytes;
337 sinfo->tx_bytes = sta->tx_bytes;
Jouni Malinen98c8a60a2009-02-17 13:24:57 +0200338 sinfo->rx_packets = sta->rx_packets;
339 sinfo->tx_packets = sta->tx_packets;
Bruno Randolfb206b4e2010-10-06 18:34:12 +0900340 sinfo->tx_retries = sta->tx_retry_count;
341 sinfo->tx_failed = sta->tx_retry_failed;
Ben Greear5a5c7312010-10-07 16:39:20 -0700342 sinfo->rx_dropped_misc = sta->rx_dropped;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100343
John W. Linville19deffb2009-12-08 17:10:13 -0500344 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
345 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
Bruno Randolf541a45a2010-12-02 19:12:43 +0900346 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
Henning Rogge420e7fa2008-12-11 22:04:19 +0100347 sinfo->signal = (s8)sta->last_signal;
Bruno Randolf541a45a2010-12-02 19:12:43 +0900348 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
Henning Rogge420e7fa2008-12-11 22:04:19 +0100349 }
350
351 sinfo->txrate.flags = 0;
352 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
353 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
354 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
355 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
356 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
357 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
358
359 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
360 struct ieee80211_supported_band *sband;
361 sband = sta->local->hw.wiphy->bands[
362 sta->local->hw.conf.channel->band];
363 sinfo->txrate.legacy =
364 sband->bitrates[sta->last_tx_rate.idx].bitrate;
365 } else
366 sinfo->txrate.mcs = sta->last_tx_rate.idx;
367
Johannes Berg902acc72008-02-23 15:17:19 +0100368 if (ieee80211_vif_is_mesh(&sdata->vif)) {
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100369#ifdef CONFIG_MAC80211_MESH
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100370 sinfo->filled |= STATION_INFO_LLID |
371 STATION_INFO_PLID |
372 STATION_INFO_PLINK_STATE;
373
374 sinfo->llid = le16_to_cpu(sta->llid);
375 sinfo->plid = le16_to_cpu(sta->plid);
376 sinfo->plink_state = sta->plink_state;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100377#endif
Johannes Berg902acc72008-02-23 15:17:19 +0100378 }
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100379}
380
381
382static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
383 int idx, u8 *mac, struct station_info *sinfo)
384{
Johannes Berg3b53fde82009-11-16 12:00:37 +0100385 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100386 struct sta_info *sta;
Johannes Bergd0709a62008-02-25 16:27:46 +0100387 int ret = -ENOENT;
388
389 rcu_read_lock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100390
Johannes Berg3b53fde82009-11-16 12:00:37 +0100391 sta = sta_info_get_by_idx(sdata, idx);
Johannes Bergd0709a62008-02-25 16:27:46 +0100392 if (sta) {
393 ret = 0;
Johannes Berg17741cd2008-09-11 00:02:02 +0200394 memcpy(mac, sta->sta.addr, ETH_ALEN);
Johannes Bergd0709a62008-02-25 16:27:46 +0100395 sta_set_sinfo(sta, sinfo);
396 }
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100397
Johannes Bergd0709a62008-02-25 16:27:46 +0100398 rcu_read_unlock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100399
Johannes Bergd0709a62008-02-25 16:27:46 +0100400 return ret;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100401}
402
Holger Schurig12897232010-04-19 10:23:57 +0200403static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
404 int idx, struct survey_info *survey)
405{
406 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
407
Holger Schurig12897232010-04-19 10:23:57 +0200408 return drv_get_survey(local, idx, survey);
409}
410
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100411static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
Luis Carlos Cobo2ec600d2008-02-23 15:17:06 +0100412 u8 *mac, struct station_info *sinfo)
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100413{
Johannes Bergabe60632009-11-25 17:46:18 +0100414 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100415 struct sta_info *sta;
Johannes Bergd0709a62008-02-25 16:27:46 +0100416 int ret = -ENOENT;
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100417
Johannes Bergd0709a62008-02-25 16:27:46 +0100418 rcu_read_lock();
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100419
Felix Fietkau0e5ded52010-01-08 18:10:58 +0100420 sta = sta_info_get_bss(sdata, mac);
Johannes Bergd0709a62008-02-25 16:27:46 +0100421 if (sta) {
422 ret = 0;
423 sta_set_sinfo(sta, sinfo);
424 }
425
426 rcu_read_unlock();
427
428 return ret;
Johannes Berg7bbdd2d2007-12-19 02:03:37 +0100429}
430
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100431/*
432 * This handles both adding a beacon and setting new beacon info
433 */
434static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
435 struct beacon_parameters *params)
436{
437 struct beacon_data *new, *old;
438 int new_head_len, new_tail_len;
439 int size;
440 int err = -EINVAL;
441
442 old = sdata->u.ap.beacon;
443
444 /* head must not be zero-length */
445 if (params->head && !params->head_len)
446 return -EINVAL;
447
448 /*
449 * This is a kludge. beacon interval should really be part
450 * of the beacon information.
451 */
Johannes Berg57c4d7b2009-04-23 16:10:04 +0200452 if (params->interval &&
453 (sdata->vif.bss_conf.beacon_int != params->interval)) {
454 sdata->vif.bss_conf.beacon_int = params->interval;
455 ieee80211_bss_info_change_notify(sdata,
456 BSS_CHANGED_BEACON_INT);
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100457 }
458
459 /* Need to have a beacon head if we don't have one yet */
460 if (!params->head && !old)
461 return err;
462
463 /* sorry, no way to start beaconing without dtim period */
464 if (!params->dtim_period && !old)
465 return err;
466
467 /* new or old head? */
468 if (params->head)
469 new_head_len = params->head_len;
470 else
471 new_head_len = old->head_len;
472
473 /* new or old tail? */
474 if (params->tail || !old)
475 /* params->tail_len will be zero for !params->tail */
476 new_tail_len = params->tail_len;
477 else
478 new_tail_len = old->tail_len;
479
480 size = sizeof(*new) + new_head_len + new_tail_len;
481
482 new = kzalloc(size, GFP_KERNEL);
483 if (!new)
484 return -ENOMEM;
485
486 /* start filling the new info now */
487
488 /* new or old dtim period? */
489 if (params->dtim_period)
490 new->dtim_period = params->dtim_period;
491 else
492 new->dtim_period = old->dtim_period;
493
494 /*
495 * pointers go into the block we allocated,
496 * memory is | beacon_data | head | tail |
497 */
498 new->head = ((u8 *) new) + sizeof(*new);
499 new->tail = new->head + new_head_len;
500 new->head_len = new_head_len;
501 new->tail_len = new_tail_len;
502
503 /* copy in head */
504 if (params->head)
505 memcpy(new->head, params->head, new_head_len);
506 else
507 memcpy(new->head, old->head, new_head_len);
508
509 /* copy in optional tail */
510 if (params->tail)
511 memcpy(new->tail, params->tail, new_tail_len);
512 else
513 if (old)
514 memcpy(new->tail, old->tail, new_tail_len);
515
Johannes Berg19885c42010-02-05 11:45:06 +0100516 sdata->vif.bss_conf.dtim_period = new->dtim_period;
517
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100518 rcu_assign_pointer(sdata->u.ap.beacon, new);
519
520 synchronize_rcu();
521
522 kfree(old);
523
Johannes Berg2d0ddec2009-04-23 16:13:26 +0200524 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
525 BSS_CHANGED_BEACON);
526 return 0;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100527}
528
529static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
530 struct beacon_parameters *params)
531{
Johannes Berg14db74b2008-07-29 13:22:52 +0200532 struct ieee80211_sub_if_data *sdata;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100533 struct beacon_data *old;
534
Johannes Berg14db74b2008-07-29 13:22:52 +0200535 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
536
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100537 old = sdata->u.ap.beacon;
538
539 if (old)
540 return -EALREADY;
541
542 return ieee80211_config_beacon(sdata, params);
543}
544
545static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
546 struct beacon_parameters *params)
547{
Johannes Berg14db74b2008-07-29 13:22:52 +0200548 struct ieee80211_sub_if_data *sdata;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100549 struct beacon_data *old;
550
Johannes Berg14db74b2008-07-29 13:22:52 +0200551 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
552
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100553 old = sdata->u.ap.beacon;
554
555 if (!old)
556 return -ENOENT;
557
558 return ieee80211_config_beacon(sdata, params);
559}
560
561static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
562{
Johannes Berg14db74b2008-07-29 13:22:52 +0200563 struct ieee80211_sub_if_data *sdata;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100564 struct beacon_data *old;
565
Johannes Berg14db74b2008-07-29 13:22:52 +0200566 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
567
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100568 old = sdata->u.ap.beacon;
569
570 if (!old)
571 return -ENOENT;
572
573 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
574 synchronize_rcu();
575 kfree(old);
576
Johannes Berg2d0ddec2009-04-23 16:13:26 +0200577 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
578 return 0;
Johannes Berg5dfdaf52007-12-19 02:03:33 +0100579}
580
Johannes Berg4fd69312007-12-19 02:03:35 +0100581/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
582struct iapp_layer2_update {
583 u8 da[ETH_ALEN]; /* broadcast */
584 u8 sa[ETH_ALEN]; /* STA addr */
585 __be16 len; /* 6 */
586 u8 dsap; /* 0 */
587 u8 ssap; /* 0 */
588 u8 control;
589 u8 xid_info[3];
Eric Dumazetbc105022010-06-03 03:21:52 -0700590} __packed;
Johannes Berg4fd69312007-12-19 02:03:35 +0100591
592static void ieee80211_send_layer2_update(struct sta_info *sta)
593{
594 struct iapp_layer2_update *msg;
595 struct sk_buff *skb;
596
597 /* Send Level 2 Update Frame to update forwarding tables in layer 2
598 * bridge devices */
599
600 skb = dev_alloc_skb(sizeof(*msg));
601 if (!skb)
602 return;
603 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
604
605 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
606 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
607
608 memset(msg->da, 0xff, ETH_ALEN);
Johannes Berg17741cd2008-09-11 00:02:02 +0200609 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
Johannes Berg4fd69312007-12-19 02:03:35 +0100610 msg->len = htons(6);
611 msg->dsap = 0;
612 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
613 msg->control = 0xaf; /* XID response lsb.1111F101.
614 * F=0 (no poll command; unsolicited frame) */
615 msg->xid_info[0] = 0x81; /* XID format identifier */
616 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
617 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
618
Johannes Bergd0709a62008-02-25 16:27:46 +0100619 skb->dev = sta->sdata->dev;
620 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
Johannes Berg4fd69312007-12-19 02:03:35 +0100621 memset(skb->cb, 0, sizeof(skb->cb));
John W. Linville06ee1c22010-07-19 11:52:59 -0400622 netif_rx_ni(skb);
Johannes Berg4fd69312007-12-19 02:03:35 +0100623}
624
625static void sta_apply_parameters(struct ieee80211_local *local,
626 struct sta_info *sta,
627 struct station_parameters *params)
628{
Johannes Bergf5521b12010-09-14 22:06:53 +0200629 unsigned long flags;
Johannes Berg4fd69312007-12-19 02:03:35 +0100630 u32 rates;
631 int i, j;
Johannes Berg8318d782008-01-24 19:38:38 +0100632 struct ieee80211_supported_band *sband;
Johannes Bergd0709a62008-02-25 16:27:46 +0100633 struct ieee80211_sub_if_data *sdata = sta->sdata;
Johannes Bergeccb8e82009-05-11 21:57:56 +0300634 u32 mask, set;
Johannes Berg4fd69312007-12-19 02:03:35 +0100635
Johannes Bergae5eb022008-10-14 16:58:37 +0200636 sband = local->hw.wiphy->bands[local->oper_channel->band];
637
Johannes Bergf5521b12010-09-14 22:06:53 +0200638 spin_lock_irqsave(&sta->flaglock, flags);
Johannes Bergeccb8e82009-05-11 21:57:56 +0300639 mask = params->sta_flags_mask;
640 set = params->sta_flags_set;
Johannes Berg73651ee2008-02-25 16:27:47 +0100641
Johannes Bergeccb8e82009-05-11 21:57:56 +0300642 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
Johannes Berg4fd69312007-12-19 02:03:35 +0100643 sta->flags &= ~WLAN_STA_AUTHORIZED;
Johannes Bergeccb8e82009-05-11 21:57:56 +0300644 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
Johannes Berg4fd69312007-12-19 02:03:35 +0100645 sta->flags |= WLAN_STA_AUTHORIZED;
Johannes Berg4fd69312007-12-19 02:03:35 +0100646 }
647
Johannes Bergeccb8e82009-05-11 21:57:56 +0300648 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
649 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
650 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
651 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
652 }
653
654 if (mask & BIT(NL80211_STA_FLAG_WME)) {
655 sta->flags &= ~WLAN_STA_WME;
656 if (set & BIT(NL80211_STA_FLAG_WME))
657 sta->flags |= WLAN_STA_WME;
658 }
659
660 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
661 sta->flags &= ~WLAN_STA_MFP;
662 if (set & BIT(NL80211_STA_FLAG_MFP))
663 sta->flags |= WLAN_STA_MFP;
664 }
Johannes Bergf5521b12010-09-14 22:06:53 +0200665 spin_unlock_irqrestore(&sta->flaglock, flags);
Johannes Bergeccb8e82009-05-11 21:57:56 +0300666
Johannes Berg73651ee2008-02-25 16:27:47 +0100667 /*
Johannes Berg51b50fb2009-05-24 16:42:30 +0200668 * cfg80211 validates this (1-2007) and allows setting the AID
669 * only when creating a new station entry
670 */
671 if (params->aid)
672 sta->sta.aid = params->aid;
673
674 /*
Johannes Berg73651ee2008-02-25 16:27:47 +0100675 * FIXME: updating the following information is racy when this
676 * function is called from ieee80211_change_station().
677 * However, all this information should be static so
678 * maybe we should just reject attemps to change it.
679 */
680
Johannes Berg4fd69312007-12-19 02:03:35 +0100681 if (params->listen_interval >= 0)
682 sta->listen_interval = params->listen_interval;
683
684 if (params->supported_rates) {
685 rates = 0;
Johannes Berg8318d782008-01-24 19:38:38 +0100686
Johannes Berg4fd69312007-12-19 02:03:35 +0100687 for (i = 0; i < params->supported_rates_len; i++) {
688 int rate = (params->supported_rates[i] & 0x7f) * 5;
Johannes Berg8318d782008-01-24 19:38:38 +0100689 for (j = 0; j < sband->n_bitrates; j++) {
690 if (sband->bitrates[j].bitrate == rate)
Johannes Berg4fd69312007-12-19 02:03:35 +0100691 rates |= BIT(j);
692 }
693 }
Johannes Berg323ce792008-09-11 02:45:11 +0200694 sta->sta.supp_rates[local->oper_channel->band] = rates;
Johannes Berg4fd69312007-12-19 02:03:35 +0100695 }
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100696
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200697 if (params->ht_capa)
Johannes Bergae5eb022008-10-14 16:58:37 +0200698 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
699 params->ht_capa,
Johannes Bergd9fe60d2008-10-09 12:13:49 +0200700 &sta->sta.ht_cap);
Jouni Malinen36aedc902008-08-25 11:58:58 +0300701
Johannes Berg902acc72008-02-23 15:17:19 +0100702 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100703 switch (params->plink_action) {
704 case PLINK_ACTION_OPEN:
705 mesh_plink_open(sta);
706 break;
707 case PLINK_ACTION_BLOCK:
708 mesh_plink_block(sta);
709 break;
710 }
Johannes Berg902acc72008-02-23 15:17:19 +0100711 }
Johannes Berg4fd69312007-12-19 02:03:35 +0100712}
713
714static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
715 u8 *mac, struct station_parameters *params)
716{
Johannes Berg14db74b2008-07-29 13:22:52 +0200717 struct ieee80211_local *local = wiphy_priv(wiphy);
Johannes Berg4fd69312007-12-19 02:03:35 +0100718 struct sta_info *sta;
719 struct ieee80211_sub_if_data *sdata;
Johannes Berg73651ee2008-02-25 16:27:47 +0100720 int err;
Jouni Malinenb8d476c2008-12-12 17:08:31 +0200721 int layer2_update;
Johannes Berg4fd69312007-12-19 02:03:35 +0100722
Johannes Berg4fd69312007-12-19 02:03:35 +0100723 if (params->vlan) {
724 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
725
Johannes Berg05c914f2008-09-11 00:01:58 +0200726 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
727 sdata->vif.type != NL80211_IFTYPE_AP)
Johannes Berg4fd69312007-12-19 02:03:35 +0100728 return -EINVAL;
729 } else
730 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
731
Johannes Berg47846c92009-11-25 17:46:19 +0100732 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
Johannes Berg03e44972008-02-27 09:56:40 +0100733 return -EINVAL;
734
735 if (is_multicast_ether_addr(mac))
736 return -EINVAL;
737
738 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
Johannes Berg73651ee2008-02-25 16:27:47 +0100739 if (!sta)
740 return -ENOMEM;
Johannes Berg4fd69312007-12-19 02:03:35 +0100741
742 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
743
744 sta_apply_parameters(local, sta, params);
745
Johannes Berg4b7679a2008-09-18 18:14:18 +0200746 rate_control_rate_init(sta);
Johannes Berg4fd69312007-12-19 02:03:35 +0100747
Jouni Malinenb8d476c2008-12-12 17:08:31 +0200748 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
749 sdata->vif.type == NL80211_IFTYPE_AP;
750
Johannes Berg34e89502010-02-03 13:59:58 +0100751 err = sta_info_insert_rcu(sta);
Johannes Berg73651ee2008-02-25 16:27:47 +0100752 if (err) {
Johannes Berg73651ee2008-02-25 16:27:47 +0100753 rcu_read_unlock();
754 return err;
755 }
756
Jouni Malinenb8d476c2008-12-12 17:08:31 +0200757 if (layer2_update)
Johannes Berg73651ee2008-02-25 16:27:47 +0100758 ieee80211_send_layer2_update(sta);
759
760 rcu_read_unlock();
761
Johannes Berg4fd69312007-12-19 02:03:35 +0100762 return 0;
763}
764
765static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
766 u8 *mac)
767{
Johannes Berg14db74b2008-07-29 13:22:52 +0200768 struct ieee80211_local *local = wiphy_priv(wiphy);
769 struct ieee80211_sub_if_data *sdata;
Johannes Berg4fd69312007-12-19 02:03:35 +0100770
Johannes Berg14db74b2008-07-29 13:22:52 +0200771 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
772
Johannes Berg34e89502010-02-03 13:59:58 +0100773 if (mac)
774 return sta_info_destroy_addr_bss(sdata, mac);
Johannes Berg98dd6a52008-04-10 15:36:09 +0200775
Johannes Berg34e89502010-02-03 13:59:58 +0100776 sta_info_flush(local, sdata);
Johannes Berg4fd69312007-12-19 02:03:35 +0100777 return 0;
778}
779
780static int ieee80211_change_station(struct wiphy *wiphy,
781 struct net_device *dev,
782 u8 *mac,
783 struct station_parameters *params)
784{
Johannes Bergabe60632009-11-25 17:46:18 +0100785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berg14db74b2008-07-29 13:22:52 +0200786 struct ieee80211_local *local = wiphy_priv(wiphy);
Johannes Berg4fd69312007-12-19 02:03:35 +0100787 struct sta_info *sta;
788 struct ieee80211_sub_if_data *vlansdata;
789
Johannes Berg98dd6a52008-04-10 15:36:09 +0200790 rcu_read_lock();
791
Felix Fietkau0e5ded52010-01-08 18:10:58 +0100792 sta = sta_info_get_bss(sdata, mac);
Johannes Berg98dd6a52008-04-10 15:36:09 +0200793 if (!sta) {
794 rcu_read_unlock();
Johannes Berg4fd69312007-12-19 02:03:35 +0100795 return -ENOENT;
Johannes Berg98dd6a52008-04-10 15:36:09 +0200796 }
Johannes Berg4fd69312007-12-19 02:03:35 +0100797
Johannes Bergd0709a62008-02-25 16:27:46 +0100798 if (params->vlan && params->vlan != sta->sdata->dev) {
Johannes Berg4fd69312007-12-19 02:03:35 +0100799 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
800
Johannes Berg05c914f2008-09-11 00:01:58 +0200801 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
802 vlansdata->vif.type != NL80211_IFTYPE_AP) {
Johannes Berg98dd6a52008-04-10 15:36:09 +0200803 rcu_read_unlock();
Johannes Berg4fd69312007-12-19 02:03:35 +0100804 return -EINVAL;
Johannes Berg98dd6a52008-04-10 15:36:09 +0200805 }
Johannes Berg4fd69312007-12-19 02:03:35 +0100806
Johannes Berg9bc383d2009-11-19 11:55:19 +0100807 if (params->vlan->ieee80211_ptr->use_4addr) {
Johannes Berg33054432009-11-20 10:09:14 +0100808 if (vlansdata->u.vlan.sta) {
809 rcu_read_unlock();
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100810 return -EBUSY;
Johannes Berg33054432009-11-20 10:09:14 +0100811 }
Felix Fietkauf14543ee2009-11-10 20:10:05 +0100812
813 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
814 }
815
Johannes Berg14db74b2008-07-29 13:22:52 +0200816 sta->sdata = vlansdata;
Johannes Berg4fd69312007-12-19 02:03:35 +0100817 ieee80211_send_layer2_update(sta);
818 }
819
820 sta_apply_parameters(local, sta, params);
821
Johannes Berg98dd6a52008-04-10 15:36:09 +0200822 rcu_read_unlock();
823
Johannes Berg4fd69312007-12-19 02:03:35 +0100824 return 0;
825}
826
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100827#ifdef CONFIG_MAC80211_MESH
828static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
829 u8 *dst, u8 *next_hop)
830{
Johannes Berg14db74b2008-07-29 13:22:52 +0200831 struct ieee80211_sub_if_data *sdata;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100832 struct mesh_path *mpath;
833 struct sta_info *sta;
834 int err;
835
Johannes Berg14db74b2008-07-29 13:22:52 +0200836 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
837
Johannes Bergd0709a62008-02-25 16:27:46 +0100838 rcu_read_lock();
Johannes Bergabe60632009-11-25 17:46:18 +0100839 sta = sta_info_get(sdata, next_hop);
Johannes Bergd0709a62008-02-25 16:27:46 +0100840 if (!sta) {
841 rcu_read_unlock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100842 return -ENOENT;
Johannes Bergd0709a62008-02-25 16:27:46 +0100843 }
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100844
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200845 err = mesh_path_add(dst, sdata);
Johannes Bergd0709a62008-02-25 16:27:46 +0100846 if (err) {
847 rcu_read_unlock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100848 return err;
Johannes Bergd0709a62008-02-25 16:27:46 +0100849 }
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100850
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200851 mpath = mesh_path_lookup(dst, sdata);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100852 if (!mpath) {
853 rcu_read_unlock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100854 return -ENXIO;
855 }
856 mesh_path_fix_nexthop(mpath, sta);
Johannes Bergd0709a62008-02-25 16:27:46 +0100857
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100858 rcu_read_unlock();
859 return 0;
860}
861
862static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
863 u8 *dst)
864{
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100866
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200867 if (dst)
868 return mesh_path_del(dst, sdata);
869
870 mesh_path_flush(sdata);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100871 return 0;
872}
873
874static int ieee80211_change_mpath(struct wiphy *wiphy,
875 struct net_device *dev,
876 u8 *dst, u8 *next_hop)
877{
Johannes Berg14db74b2008-07-29 13:22:52 +0200878 struct ieee80211_sub_if_data *sdata;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100879 struct mesh_path *mpath;
880 struct sta_info *sta;
881
Johannes Berg14db74b2008-07-29 13:22:52 +0200882 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
883
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100884 rcu_read_lock();
Johannes Bergd0709a62008-02-25 16:27:46 +0100885
Johannes Bergabe60632009-11-25 17:46:18 +0100886 sta = sta_info_get(sdata, next_hop);
Johannes Bergd0709a62008-02-25 16:27:46 +0100887 if (!sta) {
888 rcu_read_unlock();
889 return -ENOENT;
890 }
891
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200892 mpath = mesh_path_lookup(dst, sdata);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100893 if (!mpath) {
894 rcu_read_unlock();
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100895 return -ENOENT;
896 }
897
898 mesh_path_fix_nexthop(mpath, sta);
Johannes Bergd0709a62008-02-25 16:27:46 +0100899
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100900 rcu_read_unlock();
901 return 0;
902}
903
904static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
905 struct mpath_info *pinfo)
906{
907 if (mpath->next_hop)
Johannes Berg17741cd2008-09-11 00:02:02 +0200908 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100909 else
910 memset(next_hop, 0, ETH_ALEN);
911
Johannes Bergf5ea9122009-08-07 16:17:38 +0200912 pinfo->generation = mesh_paths_generation;
913
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100914 pinfo->filled = MPATH_INFO_FRAME_QLEN |
Rui Paulod19b3bf2009-11-09 23:46:55 +0000915 MPATH_INFO_SN |
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100916 MPATH_INFO_METRIC |
917 MPATH_INFO_EXPTIME |
918 MPATH_INFO_DISCOVERY_TIMEOUT |
919 MPATH_INFO_DISCOVERY_RETRIES |
920 MPATH_INFO_FLAGS;
921
922 pinfo->frame_qlen = mpath->frame_queue.qlen;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000923 pinfo->sn = mpath->sn;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100924 pinfo->metric = mpath->metric;
925 if (time_before(jiffies, mpath->exp_time))
926 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
927 pinfo->discovery_timeout =
928 jiffies_to_msecs(mpath->discovery_timeout);
929 pinfo->discovery_retries = mpath->discovery_retries;
930 pinfo->flags = 0;
931 if (mpath->flags & MESH_PATH_ACTIVE)
932 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
933 if (mpath->flags & MESH_PATH_RESOLVING)
934 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
Rui Paulod19b3bf2009-11-09 23:46:55 +0000935 if (mpath->flags & MESH_PATH_SN_VALID)
936 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100937 if (mpath->flags & MESH_PATH_FIXED)
938 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
939 if (mpath->flags & MESH_PATH_RESOLVING)
940 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
941
942 pinfo->flags = mpath->flags;
943}
944
945static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
946 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
947
948{
Johannes Berg14db74b2008-07-29 13:22:52 +0200949 struct ieee80211_sub_if_data *sdata;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100950 struct mesh_path *mpath;
951
Johannes Berg14db74b2008-07-29 13:22:52 +0200952 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
953
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100954 rcu_read_lock();
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200955 mpath = mesh_path_lookup(dst, sdata);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100956 if (!mpath) {
957 rcu_read_unlock();
958 return -ENOENT;
959 }
960 memcpy(dst, mpath->dst, ETH_ALEN);
961 mpath_set_pinfo(mpath, next_hop, pinfo);
962 rcu_read_unlock();
963 return 0;
964}
965
966static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
967 int idx, u8 *dst, u8 *next_hop,
968 struct mpath_info *pinfo)
969{
Johannes Berg14db74b2008-07-29 13:22:52 +0200970 struct ieee80211_sub_if_data *sdata;
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100971 struct mesh_path *mpath;
972
Johannes Berg14db74b2008-07-29 13:22:52 +0200973 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
974
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100975 rcu_read_lock();
Jasper Bryant-Greenef698d852008-08-03 12:04:37 +1200976 mpath = mesh_path_lookup_by_idx(idx, sdata);
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +0100977 if (!mpath) {
978 rcu_read_unlock();
979 return -ENOENT;
980 }
981 memcpy(dst, mpath->dst, ETH_ALEN);
982 mpath_set_pinfo(mpath, next_hop, pinfo);
983 rcu_read_unlock();
984 return 0;
985}
colin@cozybit.com93da9cc2008-10-21 12:03:48 -0700986
Javier Cardona24bdd9f2010-12-16 17:37:48 -0800987static int ieee80211_get_mesh_config(struct wiphy *wiphy,
colin@cozybit.com93da9cc2008-10-21 12:03:48 -0700988 struct net_device *dev,
989 struct mesh_config *conf)
990{
991 struct ieee80211_sub_if_data *sdata;
992 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
993
colin@cozybit.com93da9cc2008-10-21 12:03:48 -0700994 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
995 return 0;
996}
997
998static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
999{
1000 return (mask >> (parm-1)) & 0x1;
1001}
1002
Javier Cardonac80d5452010-12-16 17:37:49 -08001003static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1004 const struct mesh_setup *setup)
1005{
1006 u8 *new_ie;
1007 const u8 *old_ie;
1008
1009 /* first allocate the new vendor information element */
1010 new_ie = NULL;
1011 old_ie = ifmsh->vendor_ie;
1012
1013 ifmsh->vendor_ie_len = setup->vendor_ie_len;
1014 if (setup->vendor_ie_len) {
1015 new_ie = kmemdup(setup->vendor_ie, setup->vendor_ie_len,
1016 GFP_KERNEL);
1017 if (!new_ie)
1018 return -ENOMEM;
1019 }
1020
1021 /* now copy the rest of the setup parameters */
1022 ifmsh->mesh_id_len = setup->mesh_id_len;
1023 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1024 ifmsh->mesh_pp_id = setup->path_sel_proto;
1025 ifmsh->mesh_pm_id = setup->path_metric;
1026 ifmsh->vendor_ie = new_ie;
1027
1028 kfree(old_ie);
1029
1030 return 0;
1031}
1032
Javier Cardona24bdd9f2010-12-16 17:37:48 -08001033static int ieee80211_update_mesh_config(struct wiphy *wiphy,
Johannes Berg29cbe682010-12-03 09:20:44 +01001034 struct net_device *dev, u32 mask,
1035 const struct mesh_config *nconf)
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001036{
1037 struct mesh_config *conf;
1038 struct ieee80211_sub_if_data *sdata;
Rui Paulo63c57232009-11-09 23:46:57 +00001039 struct ieee80211_if_mesh *ifmsh;
1040
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001041 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Rui Paulo63c57232009-11-09 23:46:57 +00001042 ifmsh = &sdata->u.mesh;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001043
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001044 /* Set the config options which we are interested in setting */
1045 conf = &(sdata->u.mesh.mshcfg);
1046 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1047 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1048 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1049 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1050 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1051 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1052 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1053 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1054 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1055 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1056 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1057 conf->dot11MeshTTL = nconf->dot11MeshTTL;
Javier Cardona45904f22010-12-03 09:20:40 +01001058 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1059 conf->dot11MeshTTL = nconf->element_ttl;
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001060 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1061 conf->auto_open_plinks = nconf->auto_open_plinks;
1062 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1063 conf->dot11MeshHWMPmaxPREQretries =
1064 nconf->dot11MeshHWMPmaxPREQretries;
1065 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1066 conf->path_refresh_time = nconf->path_refresh_time;
1067 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1068 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1069 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1070 conf->dot11MeshHWMPactivePathTimeout =
1071 nconf->dot11MeshHWMPactivePathTimeout;
1072 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1073 conf->dot11MeshHWMPpreqMinInterval =
1074 nconf->dot11MeshHWMPpreqMinInterval;
1075 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1076 mask))
1077 conf->dot11MeshHWMPnetDiameterTraversalTime =
1078 nconf->dot11MeshHWMPnetDiameterTraversalTime;
Rui Paulo63c57232009-11-09 23:46:57 +00001079 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1080 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1081 ieee80211_mesh_root_setup(ifmsh);
1082 }
colin@cozybit.com93da9cc2008-10-21 12:03:48 -07001083 return 0;
1084}
1085
Johannes Berg29cbe682010-12-03 09:20:44 +01001086static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1087 const struct mesh_config *conf,
1088 const struct mesh_setup *setup)
1089{
1090 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1091 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
Javier Cardonac80d5452010-12-16 17:37:49 -08001092 int err;
Johannes Berg29cbe682010-12-03 09:20:44 +01001093
Javier Cardonac80d5452010-12-16 17:37:49 -08001094 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1095 err = copy_mesh_setup(ifmsh, setup);
1096 if (err)
1097 return err;
Johannes Berg29cbe682010-12-03 09:20:44 +01001098 ieee80211_start_mesh(sdata);
1099
1100 return 0;
1101}
1102
1103static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1104{
1105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1106
1107 ieee80211_stop_mesh(sdata);
1108
1109 return 0;
1110}
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +01001111#endif
1112
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001113static int ieee80211_change_bss(struct wiphy *wiphy,
1114 struct net_device *dev,
1115 struct bss_parameters *params)
1116{
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001117 struct ieee80211_sub_if_data *sdata;
1118 u32 changed = 0;
1119
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001120 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1121
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001122 if (params->use_cts_prot >= 0) {
Johannes Bergbda39332008-10-11 01:51:51 +02001123 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001124 changed |= BSS_CHANGED_ERP_CTS_PROT;
1125 }
1126 if (params->use_short_preamble >= 0) {
Johannes Bergbda39332008-10-11 01:51:51 +02001127 sdata->vif.bss_conf.use_short_preamble =
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001128 params->use_short_preamble;
1129 changed |= BSS_CHANGED_ERP_PREAMBLE;
1130 }
Felix Fietkau43d35342010-01-15 03:00:48 +01001131
1132 if (!sdata->vif.bss_conf.use_short_slot &&
1133 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1134 sdata->vif.bss_conf.use_short_slot = true;
1135 changed |= BSS_CHANGED_ERP_SLOT;
1136 }
1137
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001138 if (params->use_short_slot_time >= 0) {
Johannes Bergbda39332008-10-11 01:51:51 +02001139 sdata->vif.bss_conf.use_short_slot =
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001140 params->use_short_slot_time;
1141 changed |= BSS_CHANGED_ERP_SLOT;
1142 }
1143
Jouni Malinen90c97a02008-10-30 16:59:22 +02001144 if (params->basic_rates) {
1145 int i, j;
1146 u32 rates = 0;
1147 struct ieee80211_local *local = wiphy_priv(wiphy);
1148 struct ieee80211_supported_band *sband =
1149 wiphy->bands[local->oper_channel->band];
1150
1151 for (i = 0; i < params->basic_rates_len; i++) {
1152 int rate = (params->basic_rates[i] & 0x7f) * 5;
1153 for (j = 0; j < sband->n_bitrates; j++) {
1154 if (sband->bitrates[j].bitrate == rate)
1155 rates |= BIT(j);
1156 }
1157 }
1158 sdata->vif.bss_conf.basic_rates = rates;
1159 changed |= BSS_CHANGED_BASIC_RATES;
1160 }
1161
Felix Fietkau7b7b5e52010-04-27 01:23:36 +02001162 if (params->ap_isolate >= 0) {
1163 if (params->ap_isolate)
1164 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1165 else
1166 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1167 }
1168
Helmut Schaa80d7e402010-11-19 12:40:26 +01001169 if (params->ht_opmode >= 0) {
1170 sdata->vif.bss_conf.ht_operation_mode =
1171 (u16) params->ht_opmode;
1172 changed |= BSS_CHANGED_HT;
1173 }
1174
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001175 ieee80211_bss_info_change_notify(sdata, changed);
1176
1177 return 0;
1178}
1179
Jouni Malinen31888482008-10-30 16:59:24 +02001180static int ieee80211_set_txq_params(struct wiphy *wiphy,
1181 struct ieee80211_txq_params *params)
1182{
1183 struct ieee80211_local *local = wiphy_priv(wiphy);
1184 struct ieee80211_tx_queue_params p;
1185
1186 if (!local->ops->conf_tx)
1187 return -EOPNOTSUPP;
1188
1189 memset(&p, 0, sizeof(p));
1190 p.aifs = params->aifs;
1191 p.cw_max = params->cwmax;
1192 p.cw_min = params->cwmin;
1193 p.txop = params->txop;
Kalle Valoab133152010-01-12 10:42:31 +02001194
1195 /*
1196 * Setting tx queue params disables u-apsd because it's only
1197 * called in master mode.
1198 */
1199 p.uapsd = false;
1200
Johannes Berg24487982009-04-23 18:52:52 +02001201 if (drv_conf_tx(local, params->queue, &p)) {
Joe Perches0fb9a9e2010-08-20 16:25:38 -07001202 wiphy_debug(local->hw.wiphy,
1203 "failed to set TX queue parameters for queue %d\n",
1204 params->queue);
Jouni Malinen31888482008-10-30 16:59:24 +02001205 return -EINVAL;
1206 }
1207
1208 return 0;
1209}
1210
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001211static int ieee80211_set_channel(struct wiphy *wiphy,
Johannes Bergf444de02010-05-05 15:25:02 +02001212 struct net_device *netdev,
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001213 struct ieee80211_channel *chan,
Sujith094d05d2008-12-12 11:57:43 +05301214 enum nl80211_channel_type channel_type)
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001215{
1216 struct ieee80211_local *local = wiphy_priv(wiphy);
Johannes Berg0aaffa92010-05-05 15:28:27 +02001217 struct ieee80211_sub_if_data *sdata = NULL;
1218
1219 if (netdev)
1220 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001221
Johannes Bergf444de02010-05-05 15:25:02 +02001222 switch (ieee80211_get_channel_mode(local, NULL)) {
1223 case CHAN_MODE_HOPPING:
1224 return -EBUSY;
1225 case CHAN_MODE_FIXED:
Johannes Berg0aaffa92010-05-05 15:28:27 +02001226 if (local->oper_channel != chan)
1227 return -EBUSY;
1228 if (!sdata && local->_oper_channel_type == channel_type)
Johannes Bergf444de02010-05-05 15:25:02 +02001229 return 0;
Johannes Berg0aaffa92010-05-05 15:28:27 +02001230 break;
Johannes Bergf444de02010-05-05 15:25:02 +02001231 case CHAN_MODE_UNDEFINED:
1232 break;
1233 }
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001234
1235 local->oper_channel = chan;
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001236
Johannes Berg0aaffa92010-05-05 15:28:27 +02001237 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1238 return -EBUSY;
1239
1240 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1241 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1242 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1243
1244 return 0;
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001245}
1246
Bob Copeland665af4f2009-01-19 11:20:53 -05001247#ifdef CONFIG_PM
1248static int ieee80211_suspend(struct wiphy *wiphy)
1249{
1250 return __ieee80211_suspend(wiphy_priv(wiphy));
1251}
1252
1253static int ieee80211_resume(struct wiphy *wiphy)
1254{
1255 return __ieee80211_resume(wiphy_priv(wiphy));
1256}
1257#else
1258#define ieee80211_suspend NULL
1259#define ieee80211_resume NULL
1260#endif
1261
Johannes Berg2a519312009-02-10 21:25:55 +01001262static int ieee80211_scan(struct wiphy *wiphy,
1263 struct net_device *dev,
1264 struct cfg80211_scan_request *req)
1265{
Johannes Berg2ca27bc2010-09-16 14:58:23 +02001266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berg2a519312009-02-10 21:25:55 +01001267
Johannes Berg2ca27bc2010-09-16 14:58:23 +02001268 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1269 case NL80211_IFTYPE_STATION:
1270 case NL80211_IFTYPE_ADHOC:
1271 case NL80211_IFTYPE_MESH_POINT:
1272 case NL80211_IFTYPE_P2P_CLIENT:
1273 break;
1274 case NL80211_IFTYPE_P2P_GO:
1275 if (sdata->local->ops->hw_scan)
1276 break;
1277 /* FIXME: implement NoA while scanning in software */
Johannes Berg2a519312009-02-10 21:25:55 +01001278 return -EOPNOTSUPP;
Johannes Berg2ca27bc2010-09-16 14:58:23 +02001279 case NL80211_IFTYPE_AP:
1280 if (sdata->u.ap.beacon)
1281 return -EOPNOTSUPP;
1282 break;
1283 default:
1284 return -EOPNOTSUPP;
1285 }
Johannes Berg2a519312009-02-10 21:25:55 +01001286
1287 return ieee80211_request_scan(sdata, req);
1288}
1289
Jouni Malinen636a5d32009-03-19 13:39:22 +02001290static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1291 struct cfg80211_auth_request *req)
1292{
Johannes Berg77fdaa12009-07-07 03:45:17 +02001293 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
Jouni Malinen636a5d32009-03-19 13:39:22 +02001294}
1295
1296static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1297 struct cfg80211_assoc_request *req)
1298{
Johannes Bergf444de02010-05-05 15:25:02 +02001299 struct ieee80211_local *local = wiphy_priv(wiphy);
1300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301
1302 switch (ieee80211_get_channel_mode(local, sdata)) {
1303 case CHAN_MODE_HOPPING:
1304 return -EBUSY;
1305 case CHAN_MODE_FIXED:
1306 if (local->oper_channel == req->bss->channel)
1307 break;
1308 return -EBUSY;
1309 case CHAN_MODE_UNDEFINED:
1310 break;
1311 }
1312
Johannes Berg77fdaa12009-07-07 03:45:17 +02001313 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
Jouni Malinen636a5d32009-03-19 13:39:22 +02001314}
1315
1316static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg667503dd2009-07-07 03:56:11 +02001317 struct cfg80211_deauth_request *req,
1318 void *cookie)
Jouni Malinen636a5d32009-03-19 13:39:22 +02001319{
Johannes Berg667503dd2009-07-07 03:56:11 +02001320 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1321 req, cookie);
Jouni Malinen636a5d32009-03-19 13:39:22 +02001322}
1323
1324static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg667503dd2009-07-07 03:56:11 +02001325 struct cfg80211_disassoc_request *req,
1326 void *cookie)
Jouni Malinen636a5d32009-03-19 13:39:22 +02001327{
Johannes Berg667503dd2009-07-07 03:56:11 +02001328 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1329 req, cookie);
Jouni Malinen636a5d32009-03-19 13:39:22 +02001330}
1331
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001332static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1333 struct cfg80211_ibss_params *params)
1334{
Johannes Bergf444de02010-05-05 15:25:02 +02001335 struct ieee80211_local *local = wiphy_priv(wiphy);
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001336 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1337
Johannes Bergf444de02010-05-05 15:25:02 +02001338 switch (ieee80211_get_channel_mode(local, sdata)) {
1339 case CHAN_MODE_HOPPING:
1340 return -EBUSY;
1341 case CHAN_MODE_FIXED:
1342 if (!params->channel_fixed)
1343 return -EBUSY;
1344 if (local->oper_channel == params->channel)
1345 break;
1346 return -EBUSY;
1347 case CHAN_MODE_UNDEFINED:
1348 break;
1349 }
1350
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001351 return ieee80211_ibss_join(sdata, params);
1352}
1353
1354static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1355{
1356 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1357
1358 return ieee80211_ibss_leave(sdata);
1359}
1360
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001361static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1362{
1363 struct ieee80211_local *local = wiphy_priv(wiphy);
Johannes Berg24487982009-04-23 18:52:52 +02001364 int err;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001365
Arik Nemtsovf23a4782010-11-08 11:51:06 +02001366 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1367 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1368
1369 if (err)
1370 return err;
1371 }
1372
Lukáš Turek310bc672009-12-21 22:50:48 +01001373 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1374 err = drv_set_coverage_class(local, wiphy->coverage_class);
1375
1376 if (err)
1377 return err;
1378 }
1379
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001380 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
Johannes Berg24487982009-04-23 18:52:52 +02001381 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001382
Johannes Berg24487982009-04-23 18:52:52 +02001383 if (err)
1384 return err;
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001385 }
1386
1387 if (changed & WIPHY_PARAM_RETRY_SHORT)
1388 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1389 if (changed & WIPHY_PARAM_RETRY_LONG)
1390 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1391 if (changed &
1392 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1393 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1394
1395 return 0;
1396}
1397
Johannes Berg7643a2c2009-06-02 13:01:39 +02001398static int ieee80211_set_tx_power(struct wiphy *wiphy,
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001399 enum nl80211_tx_power_setting type, int mbm)
Johannes Berg7643a2c2009-06-02 13:01:39 +02001400{
1401 struct ieee80211_local *local = wiphy_priv(wiphy);
1402 struct ieee80211_channel *chan = local->hw.conf.channel;
1403 u32 changes = 0;
Johannes Berg7643a2c2009-06-02 13:01:39 +02001404
1405 switch (type) {
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001406 case NL80211_TX_POWER_AUTOMATIC:
Johannes Berg7643a2c2009-06-02 13:01:39 +02001407 local->user_power_level = -1;
1408 break;
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001409 case NL80211_TX_POWER_LIMITED:
1410 if (mbm < 0 || (mbm % 100))
1411 return -EOPNOTSUPP;
1412 local->user_power_level = MBM_TO_DBM(mbm);
Johannes Berg7643a2c2009-06-02 13:01:39 +02001413 break;
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001414 case NL80211_TX_POWER_FIXED:
1415 if (mbm < 0 || (mbm % 100))
1416 return -EOPNOTSUPP;
Johannes Berg7643a2c2009-06-02 13:01:39 +02001417 /* TODO: move to cfg80211 when it knows the channel */
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001418 if (MBM_TO_DBM(mbm) > chan->max_power)
Johannes Berg7643a2c2009-06-02 13:01:39 +02001419 return -EINVAL;
Juuso Oikarinenfa61cf72010-06-23 12:12:37 +03001420 local->user_power_level = MBM_TO_DBM(mbm);
Johannes Berg7643a2c2009-06-02 13:01:39 +02001421 break;
Johannes Berg7643a2c2009-06-02 13:01:39 +02001422 }
1423
1424 ieee80211_hw_config(local, changes);
1425
1426 return 0;
1427}
1428
1429static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1430{
1431 struct ieee80211_local *local = wiphy_priv(wiphy);
1432
1433 *dbm = local->hw.conf.power_level;
1434
Johannes Berg7643a2c2009-06-02 13:01:39 +02001435 return 0;
1436}
1437
Johannes Bergab737a42009-07-01 21:26:58 +02001438static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
Johannes Berg388ac772010-10-07 13:11:09 +02001439 const u8 *addr)
Johannes Bergab737a42009-07-01 21:26:58 +02001440{
1441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1442
1443 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1444
1445 return 0;
1446}
1447
Johannes Berg1f87f7d2009-06-02 13:01:41 +02001448static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1449{
1450 struct ieee80211_local *local = wiphy_priv(wiphy);
1451
1452 drv_rfkill_poll(local);
1453}
1454
Johannes Bergaff89a92009-07-01 21:26:51 +02001455#ifdef CONFIG_NL80211_TESTMODE
Johannes Berg99783e22009-07-07 03:54:43 +02001456static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
Johannes Bergaff89a92009-07-01 21:26:51 +02001457{
1458 struct ieee80211_local *local = wiphy_priv(wiphy);
1459
1460 if (!local->ops->testmode_cmd)
1461 return -EOPNOTSUPP;
1462
1463 return local->ops->testmode_cmd(&local->hw, data, len);
1464}
1465#endif
1466
Johannes Berg0f782312009-12-01 13:37:02 +01001467int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1468 enum ieee80211_smps_mode smps_mode)
1469{
1470 const u8 *ap;
1471 enum ieee80211_smps_mode old_req;
1472 int err;
1473
1474 old_req = sdata->u.mgd.req_smps;
1475 sdata->u.mgd.req_smps = smps_mode;
1476
1477 if (old_req == smps_mode &&
1478 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1479 return 0;
1480
1481 /*
1482 * If not associated, or current association is not an HT
1483 * association, there's no need to send an action frame.
1484 */
1485 if (!sdata->u.mgd.associated ||
Johannes Berg0aaffa92010-05-05 15:28:27 +02001486 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
Johannes Berg0f782312009-12-01 13:37:02 +01001487 mutex_lock(&sdata->local->iflist_mtx);
Johannes Berg025e6be2010-10-05 10:41:47 +02001488 ieee80211_recalc_smps(sdata->local);
Johannes Berg0f782312009-12-01 13:37:02 +01001489 mutex_unlock(&sdata->local->iflist_mtx);
1490 return 0;
1491 }
1492
Johannes Berg0c1ad2c2009-12-23 13:15:39 +01001493 ap = sdata->u.mgd.associated->bssid;
Johannes Berg0f782312009-12-01 13:37:02 +01001494
1495 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1496 if (sdata->u.mgd.powersave)
1497 smps_mode = IEEE80211_SMPS_DYNAMIC;
1498 else
1499 smps_mode = IEEE80211_SMPS_OFF;
1500 }
1501
1502 /* send SM PS frame to AP */
1503 err = ieee80211_send_smps_action(sdata, smps_mode,
1504 ap, ap);
1505 if (err)
1506 sdata->u.mgd.req_smps = old_req;
1507
1508 return err;
1509}
1510
Johannes Bergbc92afd2009-07-01 21:26:57 +02001511static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1512 bool enabled, int timeout)
1513{
1514 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1515 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
Johannes Bergbc92afd2009-07-01 21:26:57 +02001516
Benoit Papillaulte5de30c2010-01-15 12:21:37 +01001517 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1518 return -EOPNOTSUPP;
1519
Johannes Bergbc92afd2009-07-01 21:26:57 +02001520 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1521 return -EOPNOTSUPP;
1522
1523 if (enabled == sdata->u.mgd.powersave &&
Juuso Oikarinenff616382010-06-09 09:51:52 +03001524 timeout == local->dynamic_ps_forced_timeout)
Johannes Bergbc92afd2009-07-01 21:26:57 +02001525 return 0;
1526
1527 sdata->u.mgd.powersave = enabled;
Juuso Oikarinenff616382010-06-09 09:51:52 +03001528 local->dynamic_ps_forced_timeout = timeout;
Johannes Bergbc92afd2009-07-01 21:26:57 +02001529
Johannes Berg0f782312009-12-01 13:37:02 +01001530 /* no change, but if automatic follow powersave */
1531 mutex_lock(&sdata->u.mgd.mtx);
1532 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1533 mutex_unlock(&sdata->u.mgd.mtx);
1534
Johannes Bergbc92afd2009-07-01 21:26:57 +02001535 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1536 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1537
1538 ieee80211_recalc_ps(local, -1);
1539
1540 return 0;
1541}
1542
Juuso Oikarinena97c13c2010-03-23 09:02:34 +02001543static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1544 struct net_device *dev,
1545 s32 rssi_thold, u32 rssi_hyst)
1546{
1547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1549 struct ieee80211_vif *vif = &sdata->vif;
1550 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1551
Juuso Oikarinena97c13c2010-03-23 09:02:34 +02001552 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1553 rssi_hyst == bss_conf->cqm_rssi_hyst)
1554 return 0;
1555
1556 bss_conf->cqm_rssi_thold = rssi_thold;
1557 bss_conf->cqm_rssi_hyst = rssi_hyst;
1558
Jouni Malinen17e4ec12010-03-29 23:28:30 -07001559 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1560 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1561 return -EOPNOTSUPP;
1562 return 0;
1563 }
1564
Juuso Oikarinena97c13c2010-03-23 09:02:34 +02001565 /* tell the driver upon association, unless already associated */
1566 if (sdata->u.mgd.associated)
1567 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1568
1569 return 0;
1570}
1571
Johannes Berg99303802009-07-01 21:26:59 +02001572static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1573 struct net_device *dev,
1574 const u8 *addr,
1575 const struct cfg80211_bitrate_mask *mask)
1576{
1577 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1578 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
Johannes Berg2c7e6bc2009-12-04 09:26:38 +01001579 int i;
Johannes Berg99303802009-07-01 21:26:59 +02001580
Johannes Berg2c7e6bc2009-12-04 09:26:38 +01001581 /*
1582 * This _could_ be supported by providing a hook for
1583 * drivers for this function, but at this point it
1584 * doesn't seem worth bothering.
1585 */
1586 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1587 return -EOPNOTSUPP;
1588
Johannes Berg99303802009-07-01 21:26:59 +02001589
Jouni Malinen37eb0b12010-01-06 13:09:08 +02001590 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1591 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
Johannes Berg99303802009-07-01 21:26:59 +02001592
Jouni Malinen37eb0b12010-01-06 13:09:08 +02001593 return 0;
Johannes Berg99303802009-07-01 21:26:59 +02001594}
1595
Johannes Berg21f83582010-12-18 17:20:47 +01001596static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1597 struct net_device *dev,
1598 struct ieee80211_channel *chan,
1599 enum nl80211_channel_type chantype,
1600 unsigned int duration, u64 *cookie)
1601{
1602 int ret;
1603 u32 random_cookie;
1604
1605 lockdep_assert_held(&local->mtx);
1606
1607 if (local->hw_roc_cookie)
1608 return -EBUSY;
1609 /* must be nonzero */
1610 random_cookie = random32() | 1;
1611
1612 *cookie = random_cookie;
1613 local->hw_roc_dev = dev;
1614 local->hw_roc_cookie = random_cookie;
1615 local->hw_roc_channel = chan;
1616 local->hw_roc_channel_type = chantype;
1617 local->hw_roc_duration = duration;
1618 ret = drv_remain_on_channel(local, chan, chantype, duration);
1619 if (ret) {
1620 local->hw_roc_channel = NULL;
1621 local->hw_roc_cookie = 0;
1622 }
1623
1624 return ret;
1625}
1626
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001627static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1628 struct net_device *dev,
1629 struct ieee80211_channel *chan,
1630 enum nl80211_channel_type channel_type,
1631 unsigned int duration,
1632 u64 *cookie)
1633{
1634 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berg21f83582010-12-18 17:20:47 +01001635 struct ieee80211_local *local = sdata->local;
1636
1637 if (local->ops->remain_on_channel) {
1638 int ret;
1639
1640 mutex_lock(&local->mtx);
1641 ret = ieee80211_remain_on_channel_hw(local, dev,
1642 chan, channel_type,
1643 duration, cookie);
Johannes Berg90fc4b32010-12-18 17:20:48 +01001644 local->hw_roc_for_tx = false;
Johannes Berg21f83582010-12-18 17:20:47 +01001645 mutex_unlock(&local->mtx);
1646
1647 return ret;
1648 }
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001649
1650 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1651 duration, cookie);
1652}
1653
Johannes Berg21f83582010-12-18 17:20:47 +01001654static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1655 u64 cookie)
1656{
1657 int ret;
1658
1659 lockdep_assert_held(&local->mtx);
1660
1661 if (local->hw_roc_cookie != cookie)
1662 return -ENOENT;
1663
1664 ret = drv_cancel_remain_on_channel(local);
1665 if (ret)
1666 return ret;
1667
1668 local->hw_roc_cookie = 0;
1669 local->hw_roc_channel = NULL;
1670
1671 ieee80211_recalc_idle(local);
1672
1673 return 0;
1674}
1675
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001676static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1677 struct net_device *dev,
1678 u64 cookie)
1679{
1680 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
Johannes Berg21f83582010-12-18 17:20:47 +01001681 struct ieee80211_local *local = sdata->local;
1682
1683 if (local->ops->cancel_remain_on_channel) {
1684 int ret;
1685
1686 mutex_lock(&local->mtx);
1687 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1688 mutex_unlock(&local->mtx);
1689
1690 return ret;
1691 }
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001692
1693 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1694}
1695
Johannes Bergf30221e2010-11-25 10:02:30 +01001696static enum work_done_result
1697ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1698{
1699 /*
1700 * Use the data embedded in the work struct for reporting
1701 * here so if the driver mangled the SKB before dropping
1702 * it (which is the only way we really should get here)
1703 * then we don't report mangled data.
1704 *
1705 * If there was no wait time, then by the time we get here
1706 * the driver will likely not have reported the status yet,
1707 * so in that case userspace will have to deal with it.
1708 */
1709
1710 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1711 cfg80211_mgmt_tx_status(wk->sdata->dev,
1712 (unsigned long) wk->offchan_tx.frame,
1713 wk->ie, wk->ie_len, false, GFP_KERNEL);
1714
1715 return WORK_DONE_DESTROY;
1716}
1717
Johannes Berg2e161f72010-08-12 15:38:38 +02001718static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
Johannes Bergf7ca38d2010-11-25 10:02:29 +01001719 struct ieee80211_channel *chan, bool offchan,
Johannes Berg2e161f72010-08-12 15:38:38 +02001720 enum nl80211_channel_type channel_type,
Johannes Bergf7ca38d2010-11-25 10:02:29 +01001721 bool channel_type_valid, unsigned int wait,
Johannes Berg2e161f72010-08-12 15:38:38 +02001722 const u8 *buf, size_t len, u64 *cookie)
Jouni Malinen026331c2010-02-15 12:53:10 +02001723{
Johannes Berg9d38d852010-06-09 17:20:33 +02001724 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1725 struct ieee80211_local *local = sdata->local;
1726 struct sk_buff *skb;
1727 struct sta_info *sta;
Johannes Bergf30221e2010-11-25 10:02:30 +01001728 struct ieee80211_work *wk;
Johannes Berg9d38d852010-06-09 17:20:33 +02001729 const struct ieee80211_mgmt *mgmt = (void *)buf;
1730 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1731 IEEE80211_TX_CTL_REQ_TX_STATUS;
Johannes Bergf30221e2010-11-25 10:02:30 +01001732 bool is_offchan = false;
Johannes Bergf7ca38d2010-11-25 10:02:29 +01001733
Johannes Berg9d38d852010-06-09 17:20:33 +02001734 /* Check that we are on the requested channel for transmission */
1735 if (chan != local->tmp_channel &&
1736 chan != local->oper_channel)
Johannes Bergf30221e2010-11-25 10:02:30 +01001737 is_offchan = true;
Johannes Berg9d38d852010-06-09 17:20:33 +02001738 if (channel_type_valid &&
1739 (channel_type != local->tmp_channel_type &&
1740 channel_type != local->_oper_channel_type))
Johannes Bergf30221e2010-11-25 10:02:30 +01001741 is_offchan = true;
1742
Johannes Berg21f83582010-12-18 17:20:47 +01001743 if (chan == local->hw_roc_channel) {
1744 /* TODO: check channel type? */
1745 is_offchan = false;
1746 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1747 }
1748
Johannes Bergf30221e2010-11-25 10:02:30 +01001749 if (is_offchan && !offchan)
Johannes Berg9d38d852010-06-09 17:20:33 +02001750 return -EBUSY;
1751
1752 switch (sdata->vif.type) {
1753 case NL80211_IFTYPE_ADHOC:
Johannes Berg663fcaf2010-09-30 21:06:09 +02001754 case NL80211_IFTYPE_AP:
1755 case NL80211_IFTYPE_AP_VLAN:
1756 case NL80211_IFTYPE_P2P_GO:
Javier Cardonac7108a72010-12-16 17:37:50 -08001757 case NL80211_IFTYPE_MESH_POINT:
Johannes Berg663fcaf2010-09-30 21:06:09 +02001758 if (!ieee80211_is_action(mgmt->frame_control) ||
1759 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
Johannes Berg9d38d852010-06-09 17:20:33 +02001760 break;
1761 rcu_read_lock();
1762 sta = sta_info_get(sdata, mgmt->da);
1763 rcu_read_unlock();
1764 if (!sta)
1765 return -ENOLINK;
1766 break;
1767 case NL80211_IFTYPE_STATION:
Johannes Berg663fcaf2010-09-30 21:06:09 +02001768 case NL80211_IFTYPE_P2P_CLIENT:
Johannes Berg9d38d852010-06-09 17:20:33 +02001769 break;
1770 default:
1771 return -EOPNOTSUPP;
1772 }
1773
1774 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1775 if (!skb)
1776 return -ENOMEM;
1777 skb_reserve(skb, local->hw.extra_tx_headroom);
1778
1779 memcpy(skb_put(skb, len), buf, len);
1780
1781 IEEE80211_SKB_CB(skb)->flags = flags;
1782
1783 skb->dev = sdata->dev;
Johannes Berg9d38d852010-06-09 17:20:33 +02001784
1785 *cookie = (unsigned long) skb;
Johannes Bergf30221e2010-11-25 10:02:30 +01001786
Johannes Berg90fc4b32010-12-18 17:20:48 +01001787 if (is_offchan && local->ops->remain_on_channel) {
1788 unsigned int duration;
1789 int ret;
1790
1791 mutex_lock(&local->mtx);
1792 /*
1793 * If the duration is zero, then the driver
1794 * wouldn't actually do anything. Set it to
1795 * 100 for now.
1796 *
1797 * TODO: cancel the off-channel operation
1798 * when we get the SKB's TX status and
1799 * the wait time was zero before.
1800 */
1801 duration = 100;
1802 if (wait)
1803 duration = wait;
1804 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1805 channel_type,
1806 duration, cookie);
1807 if (ret) {
1808 kfree_skb(skb);
1809 mutex_unlock(&local->mtx);
1810 return ret;
1811 }
1812
1813 local->hw_roc_for_tx = true;
1814 local->hw_roc_duration = wait;
1815
1816 /*
1817 * queue up frame for transmission after
1818 * ieee80211_ready_on_channel call
1819 */
1820
1821 /* modify cookie to prevent API mismatches */
1822 *cookie ^= 2;
1823 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1824 local->hw_roc_skb = skb;
1825 mutex_unlock(&local->mtx);
1826
1827 return 0;
1828 }
1829
Johannes Bergf30221e2010-11-25 10:02:30 +01001830 /*
1831 * Can transmit right away if the channel was the
1832 * right one and there's no wait involved... If a
1833 * wait is involved, we might otherwise not be on
1834 * the right channel for long enough!
1835 */
1836 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1837 ieee80211_tx_skb(sdata, skb);
1838 return 0;
1839 }
1840
1841 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1842 if (!wk) {
1843 kfree_skb(skb);
1844 return -ENOMEM;
1845 }
1846
1847 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1848 wk->chan = chan;
1849 wk->sdata = sdata;
1850 wk->done = ieee80211_offchan_tx_done;
1851 wk->offchan_tx.frame = skb;
1852 wk->offchan_tx.wait = wait;
1853 wk->ie_len = len;
1854 memcpy(wk->ie, buf, len);
1855
1856 ieee80211_add_work(wk);
Johannes Berg9d38d852010-06-09 17:20:33 +02001857 return 0;
Jouni Malinen026331c2010-02-15 12:53:10 +02001858}
1859
Johannes Bergf30221e2010-11-25 10:02:30 +01001860static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1861 struct net_device *dev,
1862 u64 cookie)
1863{
1864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1865 struct ieee80211_local *local = sdata->local;
1866 struct ieee80211_work *wk;
1867 int ret = -ENOENT;
1868
1869 mutex_lock(&local->mtx);
Johannes Berg90fc4b32010-12-18 17:20:48 +01001870
1871 if (local->ops->cancel_remain_on_channel) {
1872 cookie ^= 2;
1873 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1874
1875 if (ret == 0) {
1876 kfree_skb(local->hw_roc_skb);
1877 local->hw_roc_skb = NULL;
1878 }
1879
1880 mutex_unlock(&local->mtx);
1881
1882 return ret;
1883 }
1884
Johannes Bergf30221e2010-11-25 10:02:30 +01001885 list_for_each_entry(wk, &local->work_list, list) {
1886 if (wk->sdata != sdata)
1887 continue;
1888
1889 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
1890 continue;
1891
1892 if (cookie != (unsigned long) wk->offchan_tx.frame)
1893 continue;
1894
1895 wk->timeout = jiffies;
1896
1897 ieee80211_queue_work(&local->hw, &local->work_work);
1898 ret = 0;
1899 break;
1900 }
1901 mutex_unlock(&local->mtx);
1902
1903 return ret;
1904}
1905
Johannes Berg7be50862010-10-13 12:06:24 +02001906static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
1907 struct net_device *dev,
1908 u16 frame_type, bool reg)
1909{
1910 struct ieee80211_local *local = wiphy_priv(wiphy);
1911
1912 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
1913 return;
1914
1915 if (reg)
1916 local->probe_req_reg++;
1917 else
1918 local->probe_req_reg--;
1919
1920 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
1921}
1922
Bruno Randolf15d96752010-11-10 12:50:56 +09001923static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1924{
1925 struct ieee80211_local *local = wiphy_priv(wiphy);
1926
1927 if (local->started)
1928 return -EOPNOTSUPP;
1929
1930 return drv_set_antenna(local, tx_ant, rx_ant);
1931}
1932
1933static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1934{
1935 struct ieee80211_local *local = wiphy_priv(wiphy);
1936
1937 return drv_get_antenna(local, tx_ant, rx_ant);
1938}
1939
Jiri Bencf0706e82007-05-05 11:45:53 -07001940struct cfg80211_ops mac80211_config_ops = {
1941 .add_virtual_intf = ieee80211_add_iface,
1942 .del_virtual_intf = ieee80211_del_iface,
Johannes Berg42613db2007-09-28 21:52:27 +02001943 .change_virtual_intf = ieee80211_change_iface,
Johannes Berge8cbb4c2007-12-19 02:03:30 +01001944 .add_key = ieee80211_add_key,
1945 .del_key = ieee80211_del_key,
Johannes Berg62da92f2007-12-19 02:03:31 +01001946 .get_key = ieee80211_get_key,
Johannes Berge8cbb4c2007-12-19 02:03:30 +01001947 .set_default_key = ieee80211_config_default_key,
Jouni Malinen3cfcf6ac2009-01-08 13:32:02 +02001948 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
Johannes Berg5dfdaf52007-12-19 02:03:33 +01001949 .add_beacon = ieee80211_add_beacon,
1950 .set_beacon = ieee80211_set_beacon,
1951 .del_beacon = ieee80211_del_beacon,
Johannes Berg4fd69312007-12-19 02:03:35 +01001952 .add_station = ieee80211_add_station,
1953 .del_station = ieee80211_del_station,
1954 .change_station = ieee80211_change_station,
Johannes Berg7bbdd2d2007-12-19 02:03:37 +01001955 .get_station = ieee80211_get_station,
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +01001956 .dump_station = ieee80211_dump_station,
Holger Schurig12897232010-04-19 10:23:57 +02001957 .dump_survey = ieee80211_dump_survey,
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +01001958#ifdef CONFIG_MAC80211_MESH
1959 .add_mpath = ieee80211_add_mpath,
1960 .del_mpath = ieee80211_del_mpath,
1961 .change_mpath = ieee80211_change_mpath,
1962 .get_mpath = ieee80211_get_mpath,
1963 .dump_mpath = ieee80211_dump_mpath,
Javier Cardona24bdd9f2010-12-16 17:37:48 -08001964 .update_mesh_config = ieee80211_update_mesh_config,
1965 .get_mesh_config = ieee80211_get_mesh_config,
Johannes Berg29cbe682010-12-03 09:20:44 +01001966 .join_mesh = ieee80211_join_mesh,
1967 .leave_mesh = ieee80211_leave_mesh,
Luis Carlos Coboc5dd9c22008-02-23 15:17:17 +01001968#endif
Jouni Malinen9f1ba902008-08-07 20:07:01 +03001969 .change_bss = ieee80211_change_bss,
Jouni Malinen31888482008-10-30 16:59:24 +02001970 .set_txq_params = ieee80211_set_txq_params,
Jouni Malinen72bdcf32008-11-26 16:15:24 +02001971 .set_channel = ieee80211_set_channel,
Bob Copeland665af4f2009-01-19 11:20:53 -05001972 .suspend = ieee80211_suspend,
1973 .resume = ieee80211_resume,
Johannes Berg2a519312009-02-10 21:25:55 +01001974 .scan = ieee80211_scan,
Jouni Malinen636a5d32009-03-19 13:39:22 +02001975 .auth = ieee80211_auth,
1976 .assoc = ieee80211_assoc,
1977 .deauth = ieee80211_deauth,
1978 .disassoc = ieee80211_disassoc,
Johannes Bergaf8cdcd2009-04-19 21:25:43 +02001979 .join_ibss = ieee80211_join_ibss,
1980 .leave_ibss = ieee80211_leave_ibss,
Jouni Malinenb9a5f8ca2009-04-20 18:39:05 +02001981 .set_wiphy_params = ieee80211_set_wiphy_params,
Johannes Berg7643a2c2009-06-02 13:01:39 +02001982 .set_tx_power = ieee80211_set_tx_power,
1983 .get_tx_power = ieee80211_get_tx_power,
Johannes Bergab737a42009-07-01 21:26:58 +02001984 .set_wds_peer = ieee80211_set_wds_peer,
Johannes Berg1f87f7d2009-06-02 13:01:41 +02001985 .rfkill_poll = ieee80211_rfkill_poll,
Johannes Bergaff89a92009-07-01 21:26:51 +02001986 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
Johannes Bergbc92afd2009-07-01 21:26:57 +02001987 .set_power_mgmt = ieee80211_set_power_mgmt,
Johannes Berg99303802009-07-01 21:26:59 +02001988 .set_bitrate_mask = ieee80211_set_bitrate_mask,
Johannes Bergb8bc4b02009-12-23 13:15:42 +01001989 .remain_on_channel = ieee80211_remain_on_channel,
1990 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
Johannes Berg2e161f72010-08-12 15:38:38 +02001991 .mgmt_tx = ieee80211_mgmt_tx,
Johannes Bergf30221e2010-11-25 10:02:30 +01001992 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
Juuso Oikarinena97c13c2010-03-23 09:02:34 +02001993 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
Johannes Berg7be50862010-10-13 12:06:24 +02001994 .mgmt_frame_register = ieee80211_mgmt_frame_register,
Bruno Randolf15d96752010-11-10 12:50:56 +09001995 .set_antenna = ieee80211_set_antenna,
1996 .get_antenna = ieee80211_get_antenna,
Jiri Bencf0706e82007-05-05 11:45:53 -07001997};