Commit | Line | Data |
---|---|---|
f0706e82 JB |
1 | /* |
2 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
3 | * Copyright 2005-2006, Devicescape Software, Inc. | |
4 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <net/mac80211.h> | |
f0706e82 JB |
12 | #include <linux/module.h> |
13 | #include <linux/init.h> | |
14 | #include <linux/netdevice.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/slab.h> | |
17 | #include <linux/skbuff.h> | |
18 | #include <linux/etherdevice.h> | |
19 | #include <linux/if_arp.h> | |
f0706e82 | 20 | #include <linux/rtnetlink.h> |
f0706e82 | 21 | #include <linux/bitmap.h> |
10f644a4 | 22 | #include <linux/pm_qos_params.h> |
68542962 | 23 | #include <linux/inetdevice.h> |
881d966b | 24 | #include <net/net_namespace.h> |
f0706e82 JB |
25 | #include <net/cfg80211.h> |
26 | ||
f0706e82 | 27 | #include "ieee80211_i.h" |
24487981 | 28 | #include "driver-ops.h" |
2c8dccc7 | 29 | #include "rate.h" |
f7a92144 | 30 | #include "mesh.h" |
f0706e82 | 31 | #include "wep.h" |
2c8dccc7 | 32 | #include "led.h" |
e0eb6859 | 33 | #include "cfg.h" |
e9f207f0 | 34 | #include "debugfs.h" |
f0706e82 | 35 | |
f38fd12f JB |
36 | |
37 | bool ieee80211_disable_40mhz_24ghz; | |
38 | module_param(ieee80211_disable_40mhz_24ghz, bool, 0644); | |
39 | MODULE_PARM_DESC(ieee80211_disable_40mhz_24ghz, | |
40 | "Disable 40MHz support in the 2.4GHz band"); | |
41 | ||
681c4d07 JB |
42 | static struct lock_class_key ieee80211_rx_skb_queue_class; |
43 | ||
0d143fe1 | 44 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 45 | { |
3ac64bee | 46 | u64 mc; |
4150c572 JB |
47 | unsigned int changed_flags; |
48 | unsigned int new_flags = 0; | |
49 | ||
53918994 | 50 | if (atomic_read(&local->iff_promiscs)) |
4150c572 JB |
51 | new_flags |= FIF_PROMISC_IN_BSS; |
52 | ||
53918994 | 53 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
54 | new_flags |= FIF_ALLMULTI; |
55 | ||
3ac64bee | 56 | if (local->monitors || local->scanning) |
8cc9a739 MW |
57 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
58 | ||
7be5086d JB |
59 | if (local->fif_probe_req || local->probe_req_reg) |
60 | new_flags |= FIF_PROBE_REQ; | |
61 | ||
8cc9a739 MW |
62 | if (local->fif_fcsfail) |
63 | new_flags |= FIF_FCSFAIL; | |
64 | ||
65 | if (local->fif_plcpfail) | |
66 | new_flags |= FIF_PLCPFAIL; | |
67 | ||
68 | if (local->fif_control) | |
69 | new_flags |= FIF_CONTROL; | |
70 | ||
71 | if (local->fif_other_bss) | |
72 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 73 | |
e3b90ca2 IP |
74 | if (local->fif_pspoll) |
75 | new_flags |= FIF_PSPOLL; | |
76 | ||
3ac64bee | 77 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
78 | changed_flags = local->filter_flags ^ new_flags; |
79 | ||
22bedad3 | 80 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
81 | spin_unlock_bh(&local->filter_lock); |
82 | ||
4150c572 JB |
83 | /* be a bit nasty */ |
84 | new_flags |= (1<<31); | |
85 | ||
3ac64bee | 86 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
87 | |
88 | WARN_ON(new_flags & (1<<31)); | |
89 | ||
90 | local->filter_flags = new_flags & ~(1<<31); | |
91 | } | |
92 | ||
3ac64bee JB |
93 | static void ieee80211_reconfig_filter(struct work_struct *work) |
94 | { | |
95 | struct ieee80211_local *local = | |
96 | container_of(work, struct ieee80211_local, reconfig_filter); | |
97 | ||
98 | ieee80211_configure_filter(local); | |
99 | } | |
100 | ||
b23b025f BG |
101 | /* |
102 | * Returns true if we are logically configured to be on | |
103 | * the operating channel AND the hardware-conf is currently | |
104 | * configured on the operating channel. Compares channel-type | |
105 | * as well. | |
106 | */ | |
107 | bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local) | |
108 | { | |
109 | struct ieee80211_channel *chan, *scan_chan; | |
110 | enum nl80211_channel_type channel_type; | |
111 | ||
112 | /* This logic needs to match logic in ieee80211_hw_config */ | |
113 | if (local->scan_channel) { | |
114 | chan = local->scan_channel; | |
115 | channel_type = NL80211_CHAN_NO_HT; | |
116 | } else if (local->tmp_channel) { | |
117 | chan = scan_chan = local->tmp_channel; | |
118 | channel_type = local->tmp_channel_type; | |
119 | } else { | |
120 | chan = local->oper_channel; | |
121 | channel_type = local->_oper_channel_type; | |
122 | } | |
123 | ||
124 | if (chan != local->oper_channel || | |
125 | channel_type != local->_oper_channel_type) | |
126 | return false; | |
127 | ||
128 | /* Check current hardware-config against oper_channel. */ | |
129 | if ((local->oper_channel != local->hw.conf.channel) || | |
130 | (local->_oper_channel_type != local->hw.conf.channel_type)) | |
131 | return false; | |
132 | ||
133 | return true; | |
134 | } | |
135 | ||
e8975581 | 136 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
b2c258fb | 137 | { |
58905ca5 | 138 | struct ieee80211_channel *chan, *scan_chan; |
b2c258fb | 139 | int ret = 0; |
e8975581 | 140 | int power; |
094d05dc | 141 | enum nl80211_channel_type channel_type; |
ffd2778b | 142 | u32 offchannel_flag; |
f0706e82 | 143 | |
cb121bad JB |
144 | might_sleep(); |
145 | ||
58905ca5 JB |
146 | scan_chan = local->scan_channel; |
147 | ||
b23b025f BG |
148 | /* If this off-channel logic ever changes, ieee80211_on_oper_channel |
149 | * may need to change as well. | |
150 | */ | |
ffd2778b | 151 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
58905ca5 JB |
152 | if (scan_chan) { |
153 | chan = scan_chan; | |
094d05dc | 154 | channel_type = NL80211_CHAN_NO_HT; |
b23b025f | 155 | } else if (local->tmp_channel) { |
b8bc4b0a JB |
156 | chan = scan_chan = local->tmp_channel; |
157 | channel_type = local->tmp_channel_type; | |
72bdcf34 | 158 | } else { |
b2c258fb | 159 | chan = local->oper_channel; |
0aaffa9b | 160 | channel_type = local->_oper_channel_type; |
72bdcf34 | 161 | } |
b23b025f BG |
162 | |
163 | if (chan != local->oper_channel || | |
164 | channel_type != local->_oper_channel_type) | |
165 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; | |
166 | else | |
167 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
168 | ||
ffd2778b | 169 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 170 | |
ffd2778b | 171 | if (offchannel_flag || chan != local->hw.conf.channel || |
4797938c | 172 | channel_type != local->hw.conf.channel_type) { |
e8975581 | 173 | local->hw.conf.channel = chan; |
4797938c | 174 | local->hw.conf.channel_type = channel_type; |
e8975581 JB |
175 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
176 | } | |
8318d78a | 177 | |
0f78231b JB |
178 | if (!conf_is_ht(&local->hw.conf)) { |
179 | /* | |
180 | * mac80211.h documents that this is only valid | |
181 | * when the channel is set to an HT type, and | |
182 | * that otherwise STATIC is used. | |
183 | */ | |
184 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
185 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
186 | local->hw.conf.smps_mode = local->smps_mode; | |
187 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
188 | } | |
189 | ||
58905ca5 | 190 | if (scan_chan) |
e8975581 | 191 | power = chan->max_power; |
8318d78a | 192 | else |
a8302de9 VT |
193 | power = local->power_constr_level ? |
194 | (chan->max_power - local->power_constr_level) : | |
195 | chan->max_power; | |
196 | ||
47afbaf5 | 197 | if (local->user_power_level >= 0) |
a8302de9 VT |
198 | power = min(power, local->user_power_level); |
199 | ||
e8975581 JB |
200 | if (local->hw.conf.power_level != power) { |
201 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
202 | local->hw.conf.power_level = power; | |
203 | } | |
b2c258fb | 204 | |
e8975581 | 205 | if (changed && local->open_count) { |
24487981 | 206 | ret = drv_config(local, changed); |
d73782fd | 207 | /* |
447107fb | 208 | * Goal: |
d73782fd JB |
209 | * HW reconfiguration should never fail, the driver has told |
210 | * us what it can support so it should live up to that promise. | |
447107fb RC |
211 | * |
212 | * Current status: | |
213 | * rfkill is not integrated with mac80211 and a | |
214 | * configuration command can thus fail if hardware rfkill | |
215 | * is enabled | |
216 | * | |
217 | * FIXME: integrate rfkill with mac80211 and then add this | |
218 | * WARN_ON() back | |
219 | * | |
d73782fd | 220 | */ |
447107fb | 221 | /* WARN_ON(ret); */ |
d73782fd | 222 | } |
f0706e82 | 223 | |
b2c258fb JB |
224 | return ret; |
225 | } | |
f0706e82 | 226 | |
471b3efd JB |
227 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
228 | u32 changed) | |
d9430a32 | 229 | { |
471b3efd | 230 | struct ieee80211_local *local = sdata->local; |
9cef8737 | 231 | static const u8 zero[ETH_ALEN] = { 0 }; |
471b3efd JB |
232 | |
233 | if (!changed) | |
234 | return; | |
235 | ||
9cef8737 JB |
236 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
237 | /* | |
238 | * While not associated, claim a BSSID of all-zeroes | |
239 | * so that drivers don't do any weird things with the | |
240 | * BSSID at that time. | |
241 | */ | |
242 | if (sdata->vif.bss_conf.assoc) | |
243 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; | |
244 | else | |
245 | sdata->vif.bss_conf.bssid = zero; | |
246 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) | |
2d0ddec5 JB |
247 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
248 | else if (sdata->vif.type == NL80211_IFTYPE_AP) | |
47846c9b | 249 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
1be7fe8d BJ |
250 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
251 | sdata->vif.bss_conf.bssid = NULL; | |
2d0ddec5 | 252 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
2d0ddec5 JB |
253 | sdata->vif.bss_conf.bssid = zero; |
254 | } else { | |
255 | WARN_ON(1); | |
256 | return; | |
257 | } | |
258 | ||
259 | switch (sdata->vif.type) { | |
260 | case NL80211_IFTYPE_AP: | |
261 | case NL80211_IFTYPE_ADHOC: | |
1be7fe8d | 262 | case NL80211_IFTYPE_WDS: |
2d0ddec5 JB |
263 | case NL80211_IFTYPE_MESH_POINT: |
264 | break; | |
265 | default: | |
266 | /* do not warn to simplify caller in scan.c */ | |
267 | changed &= ~BSS_CHANGED_BEACON_ENABLED; | |
268 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) | |
269 | return; | |
270 | break; | |
271 | } | |
272 | ||
273 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
9607e6b6 | 274 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
b23b025f | 275 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
2d0ddec5 JB |
276 | sdata->vif.bss_conf.enable_beacon = false; |
277 | } else { | |
278 | /* | |
279 | * Beacon should be enabled, but AP mode must | |
280 | * check whether there is a beacon configured. | |
281 | */ | |
282 | switch (sdata->vif.type) { | |
283 | case NL80211_IFTYPE_AP: | |
284 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 285 | !!sdata->u.ap.beacon; |
2d0ddec5 JB |
286 | break; |
287 | case NL80211_IFTYPE_ADHOC: | |
288 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 289 | !!sdata->u.ibss.presp; |
2d0ddec5 | 290 | break; |
7659a193 | 291 | #ifdef CONFIG_MAC80211_MESH |
2d0ddec5 | 292 | case NL80211_IFTYPE_MESH_POINT: |
29cbe68c JB |
293 | sdata->vif.bss_conf.enable_beacon = |
294 | !!sdata->u.mesh.mesh_id_len; | |
2d0ddec5 | 295 | break; |
7659a193 | 296 | #endif |
2d0ddec5 JB |
297 | default: |
298 | /* not reached */ | |
299 | WARN_ON(1); | |
300 | break; | |
301 | } | |
302 | } | |
303 | } | |
304 | ||
12375ef9 | 305 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
306 | } |
307 | ||
f698d856 | 308 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 309 | { |
bda3933a JB |
310 | sdata->vif.bss_conf.use_cts_prot = false; |
311 | sdata->vif.bss_conf.use_short_preamble = false; | |
312 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
313 | return BSS_CHANGED_ERP_CTS_PROT | |
314 | BSS_CHANGED_ERP_PREAMBLE | | |
315 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
316 | } |
317 | ||
f0706e82 JB |
318 | static void ieee80211_tasklet_handler(unsigned long data) |
319 | { | |
320 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
321 | struct sk_buff *skb; | |
f0706e82 JB |
322 | |
323 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
324 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
325 | switch (skb->pkt_type) { | |
326 | case IEEE80211_RX_MSG: | |
51fb61e7 | 327 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
328 | * netstack. */ |
329 | skb->pkt_type = 0; | |
f1d58c25 | 330 | ieee80211_rx(local_to_hw(local), skb); |
f0706e82 JB |
331 | break; |
332 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 333 | skb->pkt_type = 0; |
e039fa4a | 334 | ieee80211_tx_status(local_to_hw(local), skb); |
f0706e82 | 335 | break; |
f4ea83dd | 336 | default: |
5e3f3089 LF |
337 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
338 | skb->pkt_type); | |
f0706e82 JB |
339 | dev_kfree_skb(skb); |
340 | break; | |
341 | } | |
342 | } | |
343 | } | |
344 | ||
f2753ddb JB |
345 | static void ieee80211_restart_work(struct work_struct *work) |
346 | { | |
347 | struct ieee80211_local *local = | |
348 | container_of(work, struct ieee80211_local, restart_work); | |
349 | ||
bc86863d SG |
350 | /* wait for scan work complete */ |
351 | flush_workqueue(local->workqueue); | |
352 | ||
353 | mutex_lock(&local->mtx); | |
354 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), | |
355 | "%s called with hardware scan in progress\n", __func__); | |
356 | mutex_unlock(&local->mtx); | |
357 | ||
f2753ddb | 358 | rtnl_lock(); |
4136c422 | 359 | ieee80211_scan_cancel(local); |
f2753ddb JB |
360 | ieee80211_reconfig(local); |
361 | rtnl_unlock(); | |
362 | } | |
363 | ||
364 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
365 | { | |
366 | struct ieee80211_local *local = hw_to_local(hw); | |
367 | ||
b5878a2d JB |
368 | trace_api_restart_hw(local); |
369 | ||
18145c69 | 370 | /* use this reason, ieee80211_reconfig will unblock it */ |
f2753ddb JB |
371 | ieee80211_stop_queues_by_reason(hw, |
372 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
373 | ||
374 | schedule_work(&local->restart_work); | |
375 | } | |
376 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
377 | ||
0f78231b JB |
378 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
379 | { | |
380 | struct ieee80211_local *local = | |
381 | container_of(work, struct ieee80211_local, recalc_smps); | |
382 | ||
383 | mutex_lock(&local->iflist_mtx); | |
025e6be2 | 384 | ieee80211_recalc_smps(local); |
0f78231b JB |
385 | mutex_unlock(&local->iflist_mtx); |
386 | } | |
387 | ||
26b36cfe | 388 | #ifdef CONFIG_INET |
2b2c009e JO |
389 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
390 | unsigned long data, void *arg) | |
391 | { | |
392 | struct in_ifaddr *ifa = arg; | |
393 | struct ieee80211_local *local = | |
394 | container_of(nb, struct ieee80211_local, | |
395 | ifa_notifier); | |
396 | struct net_device *ndev = ifa->ifa_dev->dev; | |
397 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 398 | struct in_device *idev; |
2b2c009e | 399 | struct ieee80211_sub_if_data *sdata; |
68542962 | 400 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 401 | struct ieee80211_if_managed *ifmgd; |
68542962 | 402 | int c = 0; |
2b2c009e JO |
403 | |
404 | /* Make sure it's our interface that got changed */ | |
405 | if (!wdev) | |
406 | return NOTIFY_DONE; | |
407 | ||
408 | if (wdev->wiphy != local->hw.wiphy) | |
409 | return NOTIFY_DONE; | |
410 | ||
2b2c009e | 411 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 412 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e | 413 | |
26a58456 JB |
414 | if (!ieee80211_sdata_running(sdata)) |
415 | return NOTIFY_DONE; | |
416 | ||
2b2c009e JO |
417 | /* ARP filtering is only supported in managed mode */ |
418 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
419 | return NOTIFY_DONE; | |
420 | ||
95ae6b22 | 421 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
422 | if (!idev) |
423 | return NOTIFY_DONE; | |
424 | ||
2b2c009e JO |
425 | ifmgd = &sdata->u.mgd; |
426 | mutex_lock(&ifmgd->mtx); | |
68542962 JO |
427 | |
428 | /* Copy the addresses to the bss_conf list */ | |
429 | ifa = idev->ifa_list; | |
430 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { | |
431 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
432 | ifa = ifa->ifa_next; | |
433 | c++; | |
434 | } | |
435 | ||
436 | /* If not all addresses fit the list, disable filtering */ | |
437 | if (ifa) { | |
438 | sdata->arp_filter_state = false; | |
439 | c = 0; | |
440 | } else { | |
441 | sdata->arp_filter_state = true; | |
442 | } | |
443 | bss_conf->arp_addr_cnt = c; | |
444 | ||
445 | /* Configure driver only if associated */ | |
446 | if (ifmgd->associated) { | |
447 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; | |
448 | ieee80211_bss_info_change_notify(sdata, | |
449 | BSS_CHANGED_ARP_FILTER); | |
450 | } | |
451 | ||
2b2c009e JO |
452 | mutex_unlock(&ifmgd->mtx); |
453 | ||
454 | return NOTIFY_DONE; | |
455 | } | |
26b36cfe | 456 | #endif |
2b2c009e | 457 | |
4e6cbfd0 JL |
458 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
459 | { | |
460 | struct ieee80211_local *local = | |
461 | container_of(napi, struct ieee80211_local, napi); | |
462 | ||
463 | return local->ops->napi_poll(&local->hw, budget); | |
464 | } | |
465 | ||
466 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) | |
467 | { | |
468 | struct ieee80211_local *local = hw_to_local(hw); | |
469 | ||
470 | napi_schedule(&local->napi); | |
471 | } | |
472 | EXPORT_SYMBOL(ieee80211_napi_schedule); | |
473 | ||
474 | void ieee80211_napi_complete(struct ieee80211_hw *hw) | |
475 | { | |
476 | struct ieee80211_local *local = hw_to_local(hw); | |
477 | ||
478 | napi_complete(&local->napi); | |
479 | } | |
480 | EXPORT_SYMBOL(ieee80211_napi_complete); | |
481 | ||
2e161f78 JB |
482 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
483 | static const struct ieee80211_txrx_stypes | |
484 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
485 | [NL80211_IFTYPE_ADHOC] = { | |
486 | .tx = 0xffff, | |
487 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
488 | }, | |
489 | [NL80211_IFTYPE_STATION] = { | |
490 | .tx = 0xffff, | |
491 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
492 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
493 | }, | |
494 | [NL80211_IFTYPE_AP] = { | |
495 | .tx = 0xffff, | |
496 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
497 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
498 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
499 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
500 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
501 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
502 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
503 | }, | |
504 | [NL80211_IFTYPE_AP_VLAN] = { | |
505 | /* copy AP */ | |
506 | .tx = 0xffff, | |
507 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
508 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
509 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
510 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
511 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
512 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
513 | BIT(IEEE80211_STYPE_ACTION >> 4), |
514 | }, | |
515 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
516 | .tx = 0xffff, | |
517 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
518 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
519 | }, | |
520 | [NL80211_IFTYPE_P2P_GO] = { | |
521 | .tx = 0xffff, | |
522 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
523 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
524 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
525 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
526 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
527 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
528 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
529 | }, | |
c7108a71 JC |
530 | [NL80211_IFTYPE_MESH_POINT] = { |
531 | .tx = 0xffff, | |
532 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
533 | }, | |
2e161f78 JB |
534 | }; |
535 | ||
f0706e82 JB |
536 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
537 | const struct ieee80211_ops *ops) | |
538 | { | |
f0706e82 | 539 | struct ieee80211_local *local; |
96f5e66e | 540 | int priv_size, i; |
f0706e82 JB |
541 | struct wiphy *wiphy; |
542 | ||
543 | /* Ensure 32-byte alignment of our private data and hw private data. | |
544 | * We use the wiphy priv data for both our ieee80211_local and for | |
545 | * the driver's private data | |
546 | * | |
547 | * In memory it'll be like this: | |
548 | * | |
549 | * +-------------------------+ | |
550 | * | struct wiphy | | |
551 | * +-------------------------+ | |
552 | * | struct ieee80211_local | | |
553 | * +-------------------------+ | |
554 | * | driver's private data | | |
555 | * +-------------------------+ | |
556 | * | |
557 | */ | |
1ce8e7b5 | 558 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
559 | |
560 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
561 | ||
562 | if (!wiphy) | |
563 | return NULL; | |
564 | ||
2e161f78 JB |
565 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
566 | ||
207aba60 JB |
567 | wiphy->privid = mac80211_wiphy_privid; |
568 | ||
9bc383de JB |
569 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
570 | WIPHY_FLAG_4ADDR_AP | | |
f7e0104c JB |
571 | WIPHY_FLAG_4ADDR_STATION | |
572 | WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS; | |
207aba60 JB |
573 | |
574 | if (!ops->set_key) | |
575 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 576 | |
0c1ad2ca | 577 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
578 | |
579 | local = wiphy_priv(wiphy); | |
de95a54b | 580 | |
f0706e82 JB |
581 | local->hw.wiphy = wiphy; |
582 | ||
1ce8e7b5 | 583 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 | 584 | |
4480f15c | 585 | BUG_ON(!ops->tx); |
4150c572 JB |
586 | BUG_ON(!ops->start); |
587 | BUG_ON(!ops->stop); | |
4480f15c JB |
588 | BUG_ON(!ops->config); |
589 | BUG_ON(!ops->add_interface); | |
4150c572 JB |
590 | BUG_ON(!ops->remove_interface); |
591 | BUG_ON(!ops->configure_filter); | |
f0706e82 JB |
592 | local->ops = ops; |
593 | ||
e6a9854b JB |
594 | /* set up some defaults */ |
595 | local->hw.queues = 1; | |
596 | local->hw.max_rates = 1; | |
78be49ec | 597 | local->hw.max_report_rates = 0; |
df6ba5d8 | 598 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
b9a5f8ca JM |
599 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
600 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
c428c892 | 601 | local->user_power_level = -1; |
50ae0cf1 KV |
602 | local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
603 | local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
f0706e82 | 604 | |
79010420 | 605 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
606 | |
607 | __hw_addr_init(&local->mc_list); | |
608 | ||
c771c9d8 | 609 | mutex_init(&local->iflist_mtx); |
a1699b75 | 610 | mutex_init(&local->mtx); |
f0706e82 | 611 | |
ad0e2b5a | 612 | mutex_init(&local->key_mtx); |
3b8d81e0 | 613 | spin_lock_init(&local->filter_lock); |
ce7c9111 KV |
614 | spin_lock_init(&local->queue_stop_reason_lock); |
615 | ||
681c4d07 JB |
616 | /* |
617 | * The rx_skb_queue is only accessed from tasklets, | |
618 | * but other SKB queues are used from within IRQ | |
619 | * context. Therefore, this one needs a different | |
620 | * locking class so our direct, non-irq-safe use of | |
621 | * the queue's lock doesn't throw lockdep warnings. | |
622 | */ | |
623 | skb_queue_head_init_class(&local->rx_skb_queue, | |
624 | &ieee80211_rx_skb_queue_class); | |
24a8fdad | 625 | |
c2b13452 | 626 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 627 | |
af6b6374 JB |
628 | ieee80211_work_init(local); |
629 | ||
f2753ddb JB |
630 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
631 | ||
3ac64bee | 632 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b JB |
633 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
634 | local->smps_mode = IEEE80211_SMPS_OFF; | |
3ac64bee | 635 | |
520eb820 KV |
636 | INIT_WORK(&local->dynamic_ps_enable_work, |
637 | ieee80211_dynamic_ps_enable_work); | |
638 | INIT_WORK(&local->dynamic_ps_disable_work, | |
639 | ieee80211_dynamic_ps_disable_work); | |
640 | setup_timer(&local->dynamic_ps_timer, | |
641 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
642 | ||
f0706e82 JB |
643 | sta_info_init(local); |
644 | ||
a6a67db2 | 645 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 646 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
647 | atomic_set(&local->agg_queue_stop[i], 0); |
648 | } | |
f0706e82 JB |
649 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
650 | (unsigned long)local); | |
f0706e82 JB |
651 | |
652 | tasklet_init(&local->tasklet, | |
653 | ieee80211_tasklet_handler, | |
654 | (unsigned long) local); | |
f0706e82 JB |
655 | |
656 | skb_queue_head_init(&local->skb_queue); | |
657 | skb_queue_head_init(&local->skb_queue_unreliable); | |
658 | ||
4e6cbfd0 JL |
659 | /* init dummy netdev for use w/ NAPI */ |
660 | init_dummy_netdev(&local->napi_dev); | |
661 | ||
fe67c913 JB |
662 | ieee80211_led_names(local); |
663 | ||
21f83589 JB |
664 | ieee80211_hw_roc_setup(local); |
665 | ||
f0706e82 JB |
666 | return local_to_hw(local); |
667 | } | |
668 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
669 | ||
670 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
671 | { | |
672 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 | 673 | int result; |
8318d78a | 674 | enum ieee80211_band band; |
be4a4b6a | 675 | int channels, max_bitrates; |
5ef2d41a | 676 | bool supp_ht; |
25e47c18 | 677 | static const u32 cipher_suites[] = { |
5daa8a8e | 678 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
679 | WLAN_CIPHER_SUITE_WEP40, |
680 | WLAN_CIPHER_SUITE_WEP104, | |
681 | WLAN_CIPHER_SUITE_TKIP, | |
682 | WLAN_CIPHER_SUITE_CCMP, | |
683 | ||
684 | /* keep last -- depends on hw flags! */ | |
685 | WLAN_CIPHER_SUITE_AES_CMAC | |
686 | }; | |
8318d78a | 687 | |
78be49ec HS |
688 | if (hw->max_report_rates == 0) |
689 | hw->max_report_rates = hw->max_rates; | |
690 | ||
8318d78a JB |
691 | /* |
692 | * generic code guarantees at least one band, | |
693 | * set this very early because much code assumes | |
694 | * that hw.conf.channel is assigned | |
695 | */ | |
2a519311 | 696 | channels = 0; |
de95a54b | 697 | max_bitrates = 0; |
5ef2d41a | 698 | supp_ht = false; |
8318d78a JB |
699 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
700 | struct ieee80211_supported_band *sband; | |
701 | ||
702 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
703 | if (!sband) |
704 | continue; | |
705 | if (!local->oper_channel) { | |
8318d78a JB |
706 | /* init channel we're on */ |
707 | local->hw.conf.channel = | |
58905ca5 JB |
708 | local->oper_channel = &sband->channels[0]; |
709 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; | |
8318d78a | 710 | } |
de95a54b JB |
711 | channels += sband->n_channels; |
712 | ||
713 | if (max_bitrates < sband->n_bitrates) | |
714 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 715 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
8318d78a | 716 | } |
f0706e82 | 717 | |
5ba63533 JB |
718 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
719 | sizeof(void *) * channels, GFP_KERNEL); | |
720 | if (!local->int_scan_req) | |
2a519311 JB |
721 | return -ENOMEM; |
722 | ||
f59ac048 LR |
723 | /* if low-level driver supports AP, we also support VLAN */ |
724 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) | |
725 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
726 | ||
727 | /* mac80211 always supports monitor */ | |
728 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); | |
729 | ||
5eb5a52d JB |
730 | #ifndef CONFIG_MAC80211_MESH |
731 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
732 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
733 | #endif | |
734 | ||
a621fa4d JB |
735 | /* mac80211 supports control port protocol changing */ |
736 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
737 | ||
77965c97 JB |
738 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
739 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
740 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
741 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
742 | ||
ab13315a KV |
743 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
744 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
745 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
746 | ||
de95a54b JB |
747 | /* |
748 | * Calculate scan IE length -- we need this to alloc | |
749 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 750 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
751 | * information -- SSID is the driver's responsibility. |
752 | */ | |
dc9f48ce JM |
753 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
754 | 3 /* DS Params */; | |
5ef2d41a JB |
755 | if (supp_ht) |
756 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b JB |
757 | |
758 | if (!local->ops->hw_scan) { | |
759 | /* For hw_scan, driver needs to set these up. */ | |
760 | local->hw.wiphy->max_scan_ssids = 4; | |
761 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
762 | } | |
763 | ||
764 | /* | |
765 | * If the driver supports any scan IEs, then assume the | |
766 | * limit includes the IEs mac80211 will add, otherwise | |
767 | * leave it at zero and let the driver sort it out; we | |
768 | * still pass our IEs to the driver but userspace will | |
769 | * not be allowed to in that case. | |
770 | */ | |
771 | if (local->hw.wiphy->max_scan_ie_len) | |
772 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
773 | ||
3ffc2a90 JB |
774 | /* Set up cipher suites unless driver already did */ |
775 | if (!local->hw.wiphy->cipher_suites) { | |
776 | local->hw.wiphy->cipher_suites = cipher_suites; | |
777 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
778 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
779 | local->hw.wiphy->n_cipher_suites--; | |
780 | } | |
5daa8a8e | 781 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
782 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
783 | local->hw.wiphy->cipher_suites += 2; | |
784 | local->hw.wiphy->n_cipher_suites -= 2; | |
785 | } else { | |
786 | u32 *suites; | |
787 | int r, w = 0; | |
788 | ||
789 | /* Filter out WEP */ | |
790 | ||
791 | suites = kmemdup( | |
792 | local->hw.wiphy->cipher_suites, | |
793 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
794 | GFP_KERNEL); | |
795 | if (!suites) | |
796 | return -ENOMEM; | |
797 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { | |
798 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
799 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
800 | suite == WLAN_CIPHER_SUITE_WEP104) | |
801 | continue; | |
802 | suites[w++] = suite; | |
803 | } | |
804 | local->hw.wiphy->cipher_suites = suites; | |
805 | local->hw.wiphy->n_cipher_suites = w; | |
806 | local->wiphy_ciphers_allocated = true; | |
807 | } | |
5daa8a8e | 808 | } |
25e47c18 | 809 | |
21f83589 JB |
810 | if (!local->ops->remain_on_channel) |
811 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 812 | |
f0706e82 JB |
813 | result = wiphy_register(local->hw.wiphy); |
814 | if (result < 0) | |
2a519311 | 815 | goto fail_wiphy_register; |
f0706e82 | 816 | |
e2530083 JB |
817 | /* |
818 | * We use the number of queues for feature tests (QoS, HT) internally | |
819 | * so restrict them appropriately. | |
820 | */ | |
e2530083 JB |
821 | if (hw->queues > IEEE80211_MAX_QUEUES) |
822 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 823 | |
42935eca | 824 | local->workqueue = |
99b88a0e | 825 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
42935eca | 826 | if (!local->workqueue) { |
f0706e82 JB |
827 | result = -ENOMEM; |
828 | goto fail_workqueue; | |
829 | } | |
830 | ||
b306f453 JB |
831 | /* |
832 | * The hardware needs headroom for sending the frame, | |
833 | * and we need some headroom for passing the frame to monitor | |
834 | * interfaces, but never both at the same time. | |
835 | */ | |
d24deb25 GW |
836 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
837 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
33ccad35 JB |
838 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
839 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
b306f453 | 840 | |
e9f207f0 JB |
841 | debugfs_hw_add(local); |
842 | ||
b446918b HS |
843 | /* |
844 | * if the driver doesn't specify a max listen interval we | |
845 | * use 5 which should be a safe default | |
846 | */ | |
ea95bba4 | 847 | if (local->hw.max_listen_interval == 0) |
b446918b | 848 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
849 | |
850 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
851 | ||
ff616381 | 852 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 853 | |
f0706e82 JB |
854 | result = sta_info_start(local); |
855 | if (result < 0) | |
856 | goto fail_sta_info; | |
857 | ||
d4c4a9a1 | 858 | result = ieee80211_wep_init(local); |
3473187d | 859 | if (result < 0) |
0fb9a9ec JP |
860 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
861 | result); | |
d4c4a9a1 | 862 | |
f0706e82 | 863 | rtnl_lock(); |
f0706e82 | 864 | |
830f9038 JB |
865 | result = ieee80211_init_rate_ctrl_alg(local, |
866 | hw->rate_control_algorithm); | |
f0706e82 | 867 | if (result < 0) { |
0fb9a9ec JP |
868 | wiphy_debug(local->hw.wiphy, |
869 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
870 | goto fail_rate; |
871 | } | |
872 | ||
8dffff21 JB |
873 | /* add one default STA interface if supported */ |
874 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
875 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
876 | NL80211_IFTYPE_STATION, NULL); | |
877 | if (result) | |
0fb9a9ec JP |
878 | wiphy_warn(local->hw.wiphy, |
879 | "Failed to add default virtual iface\n"); | |
8dffff21 | 880 | } |
f0706e82 | 881 | |
f0706e82 JB |
882 | rtnl_unlock(); |
883 | ||
884 | ieee80211_led_init(local); | |
885 | ||
10f644a4 JB |
886 | local->network_latency_notifier.notifier_call = |
887 | ieee80211_max_network_latency; | |
888 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
889 | &local->network_latency_notifier); | |
10f644a4 JB |
890 | if (result) { |
891 | rtnl_lock(); | |
892 | goto fail_pm_qos; | |
893 | } | |
894 | ||
26b36cfe | 895 | #ifdef CONFIG_INET |
2b2c009e JO |
896 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
897 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
898 | if (result) | |
899 | goto fail_ifa; | |
26b36cfe | 900 | #endif |
2b2c009e | 901 | |
4e6cbfd0 JL |
902 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
903 | local->hw.napi_weight); | |
904 | ||
f0706e82 JB |
905 | return 0; |
906 | ||
93c08c32 | 907 | #ifdef CONFIG_INET |
2b2c009e JO |
908 | fail_ifa: |
909 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
910 | &local->network_latency_notifier); | |
911 | rtnl_lock(); | |
93c08c32 | 912 | #endif |
10f644a4 JB |
913 | fail_pm_qos: |
914 | ieee80211_led_exit(local); | |
915 | ieee80211_remove_interfaces(local); | |
10f644a4 | 916 | fail_rate: |
f0706e82 | 917 | rtnl_unlock(); |
d4c4a9a1 | 918 | ieee80211_wep_free(local); |
f0706e82 | 919 | sta_info_stop(local); |
10f644a4 | 920 | fail_sta_info: |
42935eca | 921 | destroy_workqueue(local->workqueue); |
10f644a4 | 922 | fail_workqueue: |
f0706e82 | 923 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 924 | fail_wiphy_register: |
3ffc2a90 JB |
925 | if (local->wiphy_ciphers_allocated) |
926 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 927 | kfree(local->int_scan_req); |
f0706e82 JB |
928 | return result; |
929 | } | |
930 | EXPORT_SYMBOL(ieee80211_register_hw); | |
931 | ||
f0706e82 JB |
932 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
933 | { | |
934 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
935 | |
936 | tasklet_kill(&local->tx_pending_tasklet); | |
937 | tasklet_kill(&local->tasklet); | |
938 | ||
10f644a4 JB |
939 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
940 | &local->network_latency_notifier); | |
26b36cfe | 941 | #ifdef CONFIG_INET |
2b2c009e | 942 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 943 | #endif |
10f644a4 | 944 | |
f0706e82 JB |
945 | rtnl_lock(); |
946 | ||
79010420 JB |
947 | /* |
948 | * At this point, interface list manipulations are fine | |
949 | * because the driver cannot be handing us frames any | |
950 | * more and the tasklet is killed. | |
951 | */ | |
75636525 | 952 | ieee80211_remove_interfaces(local); |
5b2812e9 | 953 | |
f0706e82 JB |
954 | rtnl_unlock(); |
955 | ||
071249b1 JB |
956 | /* |
957 | * Now all work items will be gone, but the | |
958 | * timer might still be armed, so delete it | |
959 | */ | |
960 | del_timer_sync(&local->work_timer); | |
961 | ||
258086a4 | 962 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
963 | cancel_work_sync(&local->reconfig_filter); |
964 | ||
f0706e82 JB |
965 | ieee80211_clear_tx_pending(local); |
966 | sta_info_stop(local); | |
967 | rate_control_deinitialize(local); | |
968 | ||
f64f9e71 JP |
969 | if (skb_queue_len(&local->skb_queue) || |
970 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 971 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
972 | skb_queue_purge(&local->skb_queue); |
973 | skb_queue_purge(&local->skb_queue_unreliable); | |
24a8fdad | 974 | skb_queue_purge(&local->rx_skb_queue); |
f0706e82 | 975 | |
42935eca | 976 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
977 | wiphy_unregister(local->hw.wiphy); |
978 | ieee80211_wep_free(local); | |
979 | ieee80211_led_exit(local); | |
5ba63533 | 980 | kfree(local->int_scan_req); |
f0706e82 JB |
981 | } |
982 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
983 | ||
984 | void ieee80211_free_hw(struct ieee80211_hw *hw) | |
985 | { | |
986 | struct ieee80211_local *local = hw_to_local(hw); | |
987 | ||
c771c9d8 | 988 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 989 | mutex_destroy(&local->mtx); |
c771c9d8 | 990 | |
3ffc2a90 JB |
991 | if (local->wiphy_ciphers_allocated) |
992 | kfree(local->hw.wiphy->cipher_suites); | |
993 | ||
f0706e82 JB |
994 | wiphy_free(local->hw.wiphy); |
995 | } | |
996 | EXPORT_SYMBOL(ieee80211_free_hw); | |
997 | ||
f0706e82 JB |
998 | static int __init ieee80211_init(void) |
999 | { | |
1000 | struct sk_buff *skb; | |
1001 | int ret; | |
1002 | ||
e039fa4a JB |
1003 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1004 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1005 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1006 | |
cccf129f FF |
1007 | ret = rc80211_minstrel_init(); |
1008 | if (ret) | |
1009 | return ret; | |
1010 | ||
ec8aa669 FF |
1011 | ret = rc80211_minstrel_ht_init(); |
1012 | if (ret) | |
1013 | goto err_minstrel; | |
1014 | ||
4b475898 | 1015 | ret = rc80211_pid_init(); |
ad018375 | 1016 | if (ret) |
47846c9b | 1017 | goto err_pid; |
f0706e82 | 1018 | |
47846c9b JB |
1019 | ret = ieee80211_iface_init(); |
1020 | if (ret) | |
1021 | goto err_netdev; | |
e9f207f0 | 1022 | |
f0706e82 | 1023 | return 0; |
47846c9b JB |
1024 | err_netdev: |
1025 | rc80211_pid_exit(); | |
1026 | err_pid: | |
ec8aa669 FF |
1027 | rc80211_minstrel_ht_exit(); |
1028 | err_minstrel: | |
47846c9b JB |
1029 | rc80211_minstrel_exit(); |
1030 | ||
1031 | return ret; | |
f0706e82 JB |
1032 | } |
1033 | ||
f0706e82 JB |
1034 | static void __exit ieee80211_exit(void) |
1035 | { | |
4b475898 | 1036 | rc80211_pid_exit(); |
ec8aa669 | 1037 | rc80211_minstrel_ht_exit(); |
cccf129f | 1038 | rc80211_minstrel_exit(); |
ac71c691 | 1039 | |
f7a92144 LCC |
1040 | if (mesh_allocated) |
1041 | ieee80211s_stop(); | |
902acc78 | 1042 | |
47846c9b | 1043 | ieee80211_iface_exit(); |
f0706e82 JB |
1044 | } |
1045 | ||
1046 | ||
ca9938fe | 1047 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1048 | module_exit(ieee80211_exit); |
1049 | ||
1050 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1051 | MODULE_LICENSE("GPL"); |