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 | ||
0d143fe1 | 42 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 43 | { |
3ac64bee | 44 | u64 mc; |
4150c572 JB |
45 | unsigned int changed_flags; |
46 | unsigned int new_flags = 0; | |
47 | ||
53918994 | 48 | if (atomic_read(&local->iff_promiscs)) |
4150c572 JB |
49 | new_flags |= FIF_PROMISC_IN_BSS; |
50 | ||
53918994 | 51 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
52 | new_flags |= FIF_ALLMULTI; |
53 | ||
3ac64bee | 54 | if (local->monitors || local->scanning) |
8cc9a739 MW |
55 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
56 | ||
7be5086d JB |
57 | if (local->fif_probe_req || local->probe_req_reg) |
58 | new_flags |= FIF_PROBE_REQ; | |
59 | ||
8cc9a739 MW |
60 | if (local->fif_fcsfail) |
61 | new_flags |= FIF_FCSFAIL; | |
62 | ||
63 | if (local->fif_plcpfail) | |
64 | new_flags |= FIF_PLCPFAIL; | |
65 | ||
66 | if (local->fif_control) | |
67 | new_flags |= FIF_CONTROL; | |
68 | ||
69 | if (local->fif_other_bss) | |
70 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 71 | |
e3b90ca2 IP |
72 | if (local->fif_pspoll) |
73 | new_flags |= FIF_PSPOLL; | |
74 | ||
3ac64bee | 75 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
76 | changed_flags = local->filter_flags ^ new_flags; |
77 | ||
22bedad3 | 78 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
79 | spin_unlock_bh(&local->filter_lock); |
80 | ||
4150c572 JB |
81 | /* be a bit nasty */ |
82 | new_flags |= (1<<31); | |
83 | ||
3ac64bee | 84 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
85 | |
86 | WARN_ON(new_flags & (1<<31)); | |
87 | ||
88 | local->filter_flags = new_flags & ~(1<<31); | |
89 | } | |
90 | ||
3ac64bee JB |
91 | static void ieee80211_reconfig_filter(struct work_struct *work) |
92 | { | |
93 | struct ieee80211_local *local = | |
94 | container_of(work, struct ieee80211_local, reconfig_filter); | |
95 | ||
96 | ieee80211_configure_filter(local); | |
97 | } | |
98 | ||
e8975581 | 99 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
b2c258fb | 100 | { |
58905ca5 | 101 | struct ieee80211_channel *chan, *scan_chan; |
b2c258fb | 102 | int ret = 0; |
e8975581 | 103 | int power; |
094d05dc | 104 | enum nl80211_channel_type channel_type; |
ffd2778b | 105 | u32 offchannel_flag; |
f0706e82 | 106 | |
cb121bad JB |
107 | might_sleep(); |
108 | ||
58905ca5 JB |
109 | scan_chan = local->scan_channel; |
110 | ||
ffd2778b | 111 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
58905ca5 JB |
112 | if (scan_chan) { |
113 | chan = scan_chan; | |
094d05dc | 114 | channel_type = NL80211_CHAN_NO_HT; |
45521245 | 115 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
8d4780eb LR |
116 | } else if (local->tmp_channel && |
117 | local->oper_channel != local->tmp_channel) { | |
b8bc4b0a JB |
118 | chan = scan_chan = local->tmp_channel; |
119 | channel_type = local->tmp_channel_type; | |
45521245 | 120 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
72bdcf34 | 121 | } else { |
b2c258fb | 122 | chan = local->oper_channel; |
0aaffa9b | 123 | channel_type = local->_oper_channel_type; |
45521245 | 124 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; |
72bdcf34 | 125 | } |
ffd2778b | 126 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 127 | |
ffd2778b | 128 | if (offchannel_flag || chan != local->hw.conf.channel || |
4797938c | 129 | channel_type != local->hw.conf.channel_type) { |
e8975581 | 130 | local->hw.conf.channel = chan; |
4797938c | 131 | local->hw.conf.channel_type = channel_type; |
e8975581 JB |
132 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
133 | } | |
8318d78a | 134 | |
0f78231b JB |
135 | if (!conf_is_ht(&local->hw.conf)) { |
136 | /* | |
137 | * mac80211.h documents that this is only valid | |
138 | * when the channel is set to an HT type, and | |
139 | * that otherwise STATIC is used. | |
140 | */ | |
141 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
142 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
143 | local->hw.conf.smps_mode = local->smps_mode; | |
144 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
145 | } | |
146 | ||
58905ca5 | 147 | if (scan_chan) |
e8975581 | 148 | power = chan->max_power; |
8318d78a | 149 | else |
a8302de9 VT |
150 | power = local->power_constr_level ? |
151 | (chan->max_power - local->power_constr_level) : | |
152 | chan->max_power; | |
153 | ||
47afbaf5 | 154 | if (local->user_power_level >= 0) |
a8302de9 VT |
155 | power = min(power, local->user_power_level); |
156 | ||
e8975581 JB |
157 | if (local->hw.conf.power_level != power) { |
158 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
159 | local->hw.conf.power_level = power; | |
160 | } | |
b2c258fb | 161 | |
e8975581 | 162 | if (changed && local->open_count) { |
24487981 | 163 | ret = drv_config(local, changed); |
d73782fd | 164 | /* |
447107fb | 165 | * Goal: |
d73782fd JB |
166 | * HW reconfiguration should never fail, the driver has told |
167 | * us what it can support so it should live up to that promise. | |
447107fb RC |
168 | * |
169 | * Current status: | |
170 | * rfkill is not integrated with mac80211 and a | |
171 | * configuration command can thus fail if hardware rfkill | |
172 | * is enabled | |
173 | * | |
174 | * FIXME: integrate rfkill with mac80211 and then add this | |
175 | * WARN_ON() back | |
176 | * | |
d73782fd | 177 | */ |
447107fb | 178 | /* WARN_ON(ret); */ |
d73782fd | 179 | } |
f0706e82 | 180 | |
b2c258fb JB |
181 | return ret; |
182 | } | |
f0706e82 | 183 | |
471b3efd JB |
184 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
185 | u32 changed) | |
d9430a32 | 186 | { |
471b3efd | 187 | struct ieee80211_local *local = sdata->local; |
9cef8737 | 188 | static const u8 zero[ETH_ALEN] = { 0 }; |
471b3efd JB |
189 | |
190 | if (!changed) | |
191 | return; | |
192 | ||
9cef8737 JB |
193 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
194 | /* | |
195 | * While not associated, claim a BSSID of all-zeroes | |
196 | * so that drivers don't do any weird things with the | |
197 | * BSSID at that time. | |
198 | */ | |
199 | if (sdata->vif.bss_conf.assoc) | |
200 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; | |
201 | else | |
202 | sdata->vif.bss_conf.bssid = zero; | |
203 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) | |
2d0ddec5 JB |
204 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
205 | else if (sdata->vif.type == NL80211_IFTYPE_AP) | |
47846c9b | 206 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
1be7fe8d BJ |
207 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
208 | sdata->vif.bss_conf.bssid = NULL; | |
2d0ddec5 | 209 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
2d0ddec5 JB |
210 | sdata->vif.bss_conf.bssid = zero; |
211 | } else { | |
212 | WARN_ON(1); | |
213 | return; | |
214 | } | |
215 | ||
216 | switch (sdata->vif.type) { | |
217 | case NL80211_IFTYPE_AP: | |
218 | case NL80211_IFTYPE_ADHOC: | |
1be7fe8d | 219 | case NL80211_IFTYPE_WDS: |
2d0ddec5 JB |
220 | case NL80211_IFTYPE_MESH_POINT: |
221 | break; | |
222 | default: | |
223 | /* do not warn to simplify caller in scan.c */ | |
224 | changed &= ~BSS_CHANGED_BEACON_ENABLED; | |
225 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) | |
226 | return; | |
227 | break; | |
228 | } | |
229 | ||
230 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
9607e6b6 | 231 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
97af7432 | 232 | test_bit(SCAN_SW_SCANNING, &local->scanning)) { |
2d0ddec5 JB |
233 | sdata->vif.bss_conf.enable_beacon = false; |
234 | } else { | |
235 | /* | |
236 | * Beacon should be enabled, but AP mode must | |
237 | * check whether there is a beacon configured. | |
238 | */ | |
239 | switch (sdata->vif.type) { | |
240 | case NL80211_IFTYPE_AP: | |
241 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 242 | !!sdata->u.ap.beacon; |
2d0ddec5 JB |
243 | break; |
244 | case NL80211_IFTYPE_ADHOC: | |
245 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 246 | !!sdata->u.ibss.presp; |
2d0ddec5 | 247 | break; |
7659a193 | 248 | #ifdef CONFIG_MAC80211_MESH |
2d0ddec5 | 249 | case NL80211_IFTYPE_MESH_POINT: |
29cbe68c JB |
250 | sdata->vif.bss_conf.enable_beacon = |
251 | !!sdata->u.mesh.mesh_id_len; | |
2d0ddec5 | 252 | break; |
7659a193 | 253 | #endif |
2d0ddec5 JB |
254 | default: |
255 | /* not reached */ | |
256 | WARN_ON(1); | |
257 | break; | |
258 | } | |
259 | } | |
260 | } | |
261 | ||
12375ef9 | 262 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
263 | } |
264 | ||
f698d856 | 265 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 266 | { |
bda3933a JB |
267 | sdata->vif.bss_conf.use_cts_prot = false; |
268 | sdata->vif.bss_conf.use_short_preamble = false; | |
269 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
270 | return BSS_CHANGED_ERP_CTS_PROT | |
271 | BSS_CHANGED_ERP_PREAMBLE | | |
272 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
273 | } |
274 | ||
f0706e82 JB |
275 | static void ieee80211_tasklet_handler(unsigned long data) |
276 | { | |
277 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
278 | struct sk_buff *skb; | |
f0706e82 JB |
279 | |
280 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
281 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
282 | switch (skb->pkt_type) { | |
283 | case IEEE80211_RX_MSG: | |
51fb61e7 | 284 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
285 | * netstack. */ |
286 | skb->pkt_type = 0; | |
f1d58c25 | 287 | ieee80211_rx(local_to_hw(local), skb); |
f0706e82 JB |
288 | break; |
289 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 290 | skb->pkt_type = 0; |
e039fa4a | 291 | ieee80211_tx_status(local_to_hw(local), skb); |
f0706e82 | 292 | break; |
f4ea83dd | 293 | default: |
5e3f3089 LF |
294 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
295 | skb->pkt_type); | |
f0706e82 JB |
296 | dev_kfree_skb(skb); |
297 | break; | |
298 | } | |
299 | } | |
300 | } | |
301 | ||
f2753ddb JB |
302 | static void ieee80211_restart_work(struct work_struct *work) |
303 | { | |
304 | struct ieee80211_local *local = | |
305 | container_of(work, struct ieee80211_local, restart_work); | |
306 | ||
bc86863d SG |
307 | /* wait for scan work complete */ |
308 | flush_workqueue(local->workqueue); | |
309 | ||
310 | mutex_lock(&local->mtx); | |
311 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), | |
312 | "%s called with hardware scan in progress\n", __func__); | |
313 | mutex_unlock(&local->mtx); | |
314 | ||
f2753ddb | 315 | rtnl_lock(); |
4136c422 | 316 | ieee80211_scan_cancel(local); |
f2753ddb JB |
317 | ieee80211_reconfig(local); |
318 | rtnl_unlock(); | |
319 | } | |
320 | ||
321 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
322 | { | |
323 | struct ieee80211_local *local = hw_to_local(hw); | |
324 | ||
b5878a2d JB |
325 | trace_api_restart_hw(local); |
326 | ||
18145c69 | 327 | /* use this reason, ieee80211_reconfig will unblock it */ |
f2753ddb JB |
328 | ieee80211_stop_queues_by_reason(hw, |
329 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
330 | ||
331 | schedule_work(&local->restart_work); | |
332 | } | |
333 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
334 | ||
0f78231b JB |
335 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
336 | { | |
337 | struct ieee80211_local *local = | |
338 | container_of(work, struct ieee80211_local, recalc_smps); | |
339 | ||
340 | mutex_lock(&local->iflist_mtx); | |
025e6be2 | 341 | ieee80211_recalc_smps(local); |
0f78231b JB |
342 | mutex_unlock(&local->iflist_mtx); |
343 | } | |
344 | ||
26b36cfe | 345 | #ifdef CONFIG_INET |
2b2c009e JO |
346 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
347 | unsigned long data, void *arg) | |
348 | { | |
349 | struct in_ifaddr *ifa = arg; | |
350 | struct ieee80211_local *local = | |
351 | container_of(nb, struct ieee80211_local, | |
352 | ifa_notifier); | |
353 | struct net_device *ndev = ifa->ifa_dev->dev; | |
354 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 355 | struct in_device *idev; |
2b2c009e | 356 | struct ieee80211_sub_if_data *sdata; |
68542962 | 357 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 358 | struct ieee80211_if_managed *ifmgd; |
68542962 | 359 | int c = 0; |
2b2c009e JO |
360 | |
361 | /* Make sure it's our interface that got changed */ | |
362 | if (!wdev) | |
363 | return NOTIFY_DONE; | |
364 | ||
365 | if (wdev->wiphy != local->hw.wiphy) | |
366 | return NOTIFY_DONE; | |
367 | ||
2b2c009e | 368 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 369 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e | 370 | |
26a58456 JB |
371 | if (!ieee80211_sdata_running(sdata)) |
372 | return NOTIFY_DONE; | |
373 | ||
2b2c009e JO |
374 | /* ARP filtering is only supported in managed mode */ |
375 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
376 | return NOTIFY_DONE; | |
377 | ||
95ae6b22 | 378 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
379 | if (!idev) |
380 | return NOTIFY_DONE; | |
381 | ||
2b2c009e JO |
382 | ifmgd = &sdata->u.mgd; |
383 | mutex_lock(&ifmgd->mtx); | |
68542962 JO |
384 | |
385 | /* Copy the addresses to the bss_conf list */ | |
386 | ifa = idev->ifa_list; | |
387 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { | |
388 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
389 | ifa = ifa->ifa_next; | |
390 | c++; | |
391 | } | |
392 | ||
393 | /* If not all addresses fit the list, disable filtering */ | |
394 | if (ifa) { | |
395 | sdata->arp_filter_state = false; | |
396 | c = 0; | |
397 | } else { | |
398 | sdata->arp_filter_state = true; | |
399 | } | |
400 | bss_conf->arp_addr_cnt = c; | |
401 | ||
402 | /* Configure driver only if associated */ | |
403 | if (ifmgd->associated) { | |
404 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; | |
405 | ieee80211_bss_info_change_notify(sdata, | |
406 | BSS_CHANGED_ARP_FILTER); | |
407 | } | |
408 | ||
2b2c009e JO |
409 | mutex_unlock(&ifmgd->mtx); |
410 | ||
411 | return NOTIFY_DONE; | |
412 | } | |
26b36cfe | 413 | #endif |
2b2c009e | 414 | |
4e6cbfd0 JL |
415 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
416 | { | |
417 | struct ieee80211_local *local = | |
418 | container_of(napi, struct ieee80211_local, napi); | |
419 | ||
420 | return local->ops->napi_poll(&local->hw, budget); | |
421 | } | |
422 | ||
423 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) | |
424 | { | |
425 | struct ieee80211_local *local = hw_to_local(hw); | |
426 | ||
427 | napi_schedule(&local->napi); | |
428 | } | |
429 | EXPORT_SYMBOL(ieee80211_napi_schedule); | |
430 | ||
431 | void ieee80211_napi_complete(struct ieee80211_hw *hw) | |
432 | { | |
433 | struct ieee80211_local *local = hw_to_local(hw); | |
434 | ||
435 | napi_complete(&local->napi); | |
436 | } | |
437 | EXPORT_SYMBOL(ieee80211_napi_complete); | |
438 | ||
2e161f78 JB |
439 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
440 | static const struct ieee80211_txrx_stypes | |
441 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
442 | [NL80211_IFTYPE_ADHOC] = { | |
443 | .tx = 0xffff, | |
444 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
445 | }, | |
446 | [NL80211_IFTYPE_STATION] = { | |
447 | .tx = 0xffff, | |
448 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
449 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
450 | }, | |
451 | [NL80211_IFTYPE_AP] = { | |
452 | .tx = 0xffff, | |
453 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
454 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
455 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
456 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
457 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
458 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
459 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
460 | }, | |
461 | [NL80211_IFTYPE_AP_VLAN] = { | |
462 | /* copy AP */ | |
463 | .tx = 0xffff, | |
464 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
465 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
466 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
467 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
468 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
469 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
470 | BIT(IEEE80211_STYPE_ACTION >> 4), |
471 | }, | |
472 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
473 | .tx = 0xffff, | |
474 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
475 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
476 | }, | |
477 | [NL80211_IFTYPE_P2P_GO] = { | |
478 | .tx = 0xffff, | |
479 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
480 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
481 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
482 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
483 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
484 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
485 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
486 | }, | |
c7108a71 JC |
487 | [NL80211_IFTYPE_MESH_POINT] = { |
488 | .tx = 0xffff, | |
489 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
490 | }, | |
2e161f78 JB |
491 | }; |
492 | ||
f0706e82 JB |
493 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
494 | const struct ieee80211_ops *ops) | |
495 | { | |
f0706e82 | 496 | struct ieee80211_local *local; |
96f5e66e | 497 | int priv_size, i; |
f0706e82 JB |
498 | struct wiphy *wiphy; |
499 | ||
500 | /* Ensure 32-byte alignment of our private data and hw private data. | |
501 | * We use the wiphy priv data for both our ieee80211_local and for | |
502 | * the driver's private data | |
503 | * | |
504 | * In memory it'll be like this: | |
505 | * | |
506 | * +-------------------------+ | |
507 | * | struct wiphy | | |
508 | * +-------------------------+ | |
509 | * | struct ieee80211_local | | |
510 | * +-------------------------+ | |
511 | * | driver's private data | | |
512 | * +-------------------------+ | |
513 | * | |
514 | */ | |
1ce8e7b5 | 515 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
516 | |
517 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
518 | ||
519 | if (!wiphy) | |
520 | return NULL; | |
521 | ||
2e161f78 JB |
522 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
523 | ||
207aba60 JB |
524 | wiphy->privid = mac80211_wiphy_privid; |
525 | ||
9bc383de JB |
526 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
527 | WIPHY_FLAG_4ADDR_AP | | |
f7e0104c JB |
528 | WIPHY_FLAG_4ADDR_STATION | |
529 | WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS; | |
207aba60 JB |
530 | |
531 | if (!ops->set_key) | |
532 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 533 | |
0c1ad2ca | 534 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
535 | |
536 | local = wiphy_priv(wiphy); | |
de95a54b | 537 | |
f0706e82 JB |
538 | local->hw.wiphy = wiphy; |
539 | ||
1ce8e7b5 | 540 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 | 541 | |
4480f15c | 542 | BUG_ON(!ops->tx); |
4150c572 JB |
543 | BUG_ON(!ops->start); |
544 | BUG_ON(!ops->stop); | |
4480f15c JB |
545 | BUG_ON(!ops->config); |
546 | BUG_ON(!ops->add_interface); | |
4150c572 JB |
547 | BUG_ON(!ops->remove_interface); |
548 | BUG_ON(!ops->configure_filter); | |
f0706e82 JB |
549 | local->ops = ops; |
550 | ||
e6a9854b JB |
551 | /* set up some defaults */ |
552 | local->hw.queues = 1; | |
553 | local->hw.max_rates = 1; | |
78be49ec | 554 | local->hw.max_report_rates = 0; |
b9a5f8ca JM |
555 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
556 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
c428c892 | 557 | local->user_power_level = -1; |
50ae0cf1 KV |
558 | local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
559 | local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
f0706e82 | 560 | |
79010420 | 561 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
562 | |
563 | __hw_addr_init(&local->mc_list); | |
564 | ||
c771c9d8 | 565 | mutex_init(&local->iflist_mtx); |
a1699b75 | 566 | mutex_init(&local->mtx); |
f0706e82 | 567 | |
ad0e2b5a | 568 | mutex_init(&local->key_mtx); |
3b8d81e0 | 569 | spin_lock_init(&local->filter_lock); |
ce7c9111 KV |
570 | spin_lock_init(&local->queue_stop_reason_lock); |
571 | ||
c2b13452 | 572 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 573 | |
af6b6374 JB |
574 | ieee80211_work_init(local); |
575 | ||
f2753ddb JB |
576 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
577 | ||
3ac64bee | 578 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b JB |
579 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
580 | local->smps_mode = IEEE80211_SMPS_OFF; | |
3ac64bee | 581 | |
520eb820 KV |
582 | INIT_WORK(&local->dynamic_ps_enable_work, |
583 | ieee80211_dynamic_ps_enable_work); | |
584 | INIT_WORK(&local->dynamic_ps_disable_work, | |
585 | ieee80211_dynamic_ps_disable_work); | |
586 | setup_timer(&local->dynamic_ps_timer, | |
587 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
588 | ||
f0706e82 JB |
589 | sta_info_init(local); |
590 | ||
a6a67db2 | 591 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 592 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
593 | atomic_set(&local->agg_queue_stop[i], 0); |
594 | } | |
f0706e82 JB |
595 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
596 | (unsigned long)local); | |
f0706e82 JB |
597 | |
598 | tasklet_init(&local->tasklet, | |
599 | ieee80211_tasklet_handler, | |
600 | (unsigned long) local); | |
f0706e82 JB |
601 | |
602 | skb_queue_head_init(&local->skb_queue); | |
603 | skb_queue_head_init(&local->skb_queue_unreliable); | |
604 | ||
4e6cbfd0 JL |
605 | /* init dummy netdev for use w/ NAPI */ |
606 | init_dummy_netdev(&local->napi_dev); | |
607 | ||
f0706e82 JB |
608 | return local_to_hw(local); |
609 | } | |
610 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
611 | ||
612 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
613 | { | |
614 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 | 615 | int result; |
8318d78a | 616 | enum ieee80211_band band; |
be4a4b6a | 617 | int channels, max_bitrates; |
5ef2d41a | 618 | bool supp_ht; |
25e47c18 | 619 | static const u32 cipher_suites[] = { |
5daa8a8e | 620 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
621 | WLAN_CIPHER_SUITE_WEP40, |
622 | WLAN_CIPHER_SUITE_WEP104, | |
623 | WLAN_CIPHER_SUITE_TKIP, | |
624 | WLAN_CIPHER_SUITE_CCMP, | |
625 | ||
626 | /* keep last -- depends on hw flags! */ | |
627 | WLAN_CIPHER_SUITE_AES_CMAC | |
628 | }; | |
8318d78a | 629 | |
78be49ec HS |
630 | if (hw->max_report_rates == 0) |
631 | hw->max_report_rates = hw->max_rates; | |
632 | ||
8318d78a JB |
633 | /* |
634 | * generic code guarantees at least one band, | |
635 | * set this very early because much code assumes | |
636 | * that hw.conf.channel is assigned | |
637 | */ | |
2a519311 | 638 | channels = 0; |
de95a54b | 639 | max_bitrates = 0; |
5ef2d41a | 640 | supp_ht = false; |
8318d78a JB |
641 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
642 | struct ieee80211_supported_band *sband; | |
643 | ||
644 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
645 | if (!sband) |
646 | continue; | |
647 | if (!local->oper_channel) { | |
8318d78a JB |
648 | /* init channel we're on */ |
649 | local->hw.conf.channel = | |
58905ca5 JB |
650 | local->oper_channel = &sband->channels[0]; |
651 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; | |
8318d78a | 652 | } |
de95a54b JB |
653 | channels += sband->n_channels; |
654 | ||
655 | if (max_bitrates < sband->n_bitrates) | |
656 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 657 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
8318d78a | 658 | } |
f0706e82 | 659 | |
5ba63533 JB |
660 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
661 | sizeof(void *) * channels, GFP_KERNEL); | |
662 | if (!local->int_scan_req) | |
2a519311 JB |
663 | return -ENOMEM; |
664 | ||
f59ac048 LR |
665 | /* if low-level driver supports AP, we also support VLAN */ |
666 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) | |
667 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
668 | ||
669 | /* mac80211 always supports monitor */ | |
670 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); | |
671 | ||
5eb5a52d JB |
672 | #ifndef CONFIG_MAC80211_MESH |
673 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
674 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
675 | #endif | |
676 | ||
a621fa4d JB |
677 | /* mac80211 supports control port protocol changing */ |
678 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
679 | ||
77965c97 JB |
680 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
681 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
682 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
683 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
684 | ||
ab13315a KV |
685 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
686 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
687 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
688 | ||
de95a54b JB |
689 | /* |
690 | * Calculate scan IE length -- we need this to alloc | |
691 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 692 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
693 | * information -- SSID is the driver's responsibility. |
694 | */ | |
dc9f48ce JM |
695 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
696 | 3 /* DS Params */; | |
5ef2d41a JB |
697 | if (supp_ht) |
698 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b JB |
699 | |
700 | if (!local->ops->hw_scan) { | |
701 | /* For hw_scan, driver needs to set these up. */ | |
702 | local->hw.wiphy->max_scan_ssids = 4; | |
703 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
704 | } | |
705 | ||
706 | /* | |
707 | * If the driver supports any scan IEs, then assume the | |
708 | * limit includes the IEs mac80211 will add, otherwise | |
709 | * leave it at zero and let the driver sort it out; we | |
710 | * still pass our IEs to the driver but userspace will | |
711 | * not be allowed to in that case. | |
712 | */ | |
713 | if (local->hw.wiphy->max_scan_ie_len) | |
714 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
715 | ||
3ffc2a90 JB |
716 | /* Set up cipher suites unless driver already did */ |
717 | if (!local->hw.wiphy->cipher_suites) { | |
718 | local->hw.wiphy->cipher_suites = cipher_suites; | |
719 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
720 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
721 | local->hw.wiphy->n_cipher_suites--; | |
722 | } | |
5daa8a8e | 723 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
724 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
725 | local->hw.wiphy->cipher_suites += 2; | |
726 | local->hw.wiphy->n_cipher_suites -= 2; | |
727 | } else { | |
728 | u32 *suites; | |
729 | int r, w = 0; | |
730 | ||
731 | /* Filter out WEP */ | |
732 | ||
733 | suites = kmemdup( | |
734 | local->hw.wiphy->cipher_suites, | |
735 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
736 | GFP_KERNEL); | |
737 | if (!suites) | |
738 | return -ENOMEM; | |
739 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { | |
740 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
741 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
742 | suite == WLAN_CIPHER_SUITE_WEP104) | |
743 | continue; | |
744 | suites[w++] = suite; | |
745 | } | |
746 | local->hw.wiphy->cipher_suites = suites; | |
747 | local->hw.wiphy->n_cipher_suites = w; | |
748 | local->wiphy_ciphers_allocated = true; | |
749 | } | |
5daa8a8e | 750 | } |
25e47c18 | 751 | |
a293911d JB |
752 | local->hw.wiphy->max_remain_on_channel_duration = 5000; |
753 | ||
f0706e82 JB |
754 | result = wiphy_register(local->hw.wiphy); |
755 | if (result < 0) | |
2a519311 | 756 | goto fail_wiphy_register; |
f0706e82 | 757 | |
e2530083 JB |
758 | /* |
759 | * We use the number of queues for feature tests (QoS, HT) internally | |
760 | * so restrict them appropriately. | |
761 | */ | |
e2530083 JB |
762 | if (hw->queues > IEEE80211_MAX_QUEUES) |
763 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 764 | |
42935eca | 765 | local->workqueue = |
99b88a0e | 766 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
42935eca | 767 | if (!local->workqueue) { |
f0706e82 JB |
768 | result = -ENOMEM; |
769 | goto fail_workqueue; | |
770 | } | |
771 | ||
b306f453 JB |
772 | /* |
773 | * The hardware needs headroom for sending the frame, | |
774 | * and we need some headroom for passing the frame to monitor | |
775 | * interfaces, but never both at the same time. | |
776 | */ | |
d24deb25 GW |
777 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
778 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
33ccad35 JB |
779 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
780 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
b306f453 | 781 | |
e9f207f0 JB |
782 | debugfs_hw_add(local); |
783 | ||
b446918b HS |
784 | /* |
785 | * if the driver doesn't specify a max listen interval we | |
786 | * use 5 which should be a safe default | |
787 | */ | |
ea95bba4 | 788 | if (local->hw.max_listen_interval == 0) |
b446918b | 789 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
790 | |
791 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
792 | ||
ff616381 | 793 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 794 | |
f0706e82 JB |
795 | result = sta_info_start(local); |
796 | if (result < 0) | |
797 | goto fail_sta_info; | |
798 | ||
d4c4a9a1 | 799 | result = ieee80211_wep_init(local); |
3473187d | 800 | if (result < 0) |
0fb9a9ec JP |
801 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
802 | result); | |
d4c4a9a1 | 803 | |
f0706e82 | 804 | rtnl_lock(); |
f0706e82 | 805 | |
830f9038 JB |
806 | result = ieee80211_init_rate_ctrl_alg(local, |
807 | hw->rate_control_algorithm); | |
f0706e82 | 808 | if (result < 0) { |
0fb9a9ec JP |
809 | wiphy_debug(local->hw.wiphy, |
810 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
811 | goto fail_rate; |
812 | } | |
813 | ||
8dffff21 JB |
814 | /* add one default STA interface if supported */ |
815 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
816 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
817 | NL80211_IFTYPE_STATION, NULL); | |
818 | if (result) | |
0fb9a9ec JP |
819 | wiphy_warn(local->hw.wiphy, |
820 | "Failed to add default virtual iface\n"); | |
8dffff21 | 821 | } |
f0706e82 | 822 | |
f0706e82 JB |
823 | rtnl_unlock(); |
824 | ||
825 | ieee80211_led_init(local); | |
826 | ||
10f644a4 JB |
827 | local->network_latency_notifier.notifier_call = |
828 | ieee80211_max_network_latency; | |
829 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
830 | &local->network_latency_notifier); | |
10f644a4 JB |
831 | if (result) { |
832 | rtnl_lock(); | |
833 | goto fail_pm_qos; | |
834 | } | |
835 | ||
26b36cfe | 836 | #ifdef CONFIG_INET |
2b2c009e JO |
837 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
838 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
839 | if (result) | |
840 | goto fail_ifa; | |
26b36cfe | 841 | #endif |
2b2c009e | 842 | |
4e6cbfd0 JL |
843 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
844 | local->hw.napi_weight); | |
845 | ||
f0706e82 JB |
846 | return 0; |
847 | ||
93c08c32 | 848 | #ifdef CONFIG_INET |
2b2c009e JO |
849 | fail_ifa: |
850 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
851 | &local->network_latency_notifier); | |
852 | rtnl_lock(); | |
93c08c32 | 853 | #endif |
10f644a4 JB |
854 | fail_pm_qos: |
855 | ieee80211_led_exit(local); | |
856 | ieee80211_remove_interfaces(local); | |
10f644a4 | 857 | fail_rate: |
f0706e82 | 858 | rtnl_unlock(); |
d4c4a9a1 | 859 | ieee80211_wep_free(local); |
f0706e82 | 860 | sta_info_stop(local); |
10f644a4 | 861 | fail_sta_info: |
42935eca | 862 | destroy_workqueue(local->workqueue); |
10f644a4 | 863 | fail_workqueue: |
f0706e82 | 864 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 865 | fail_wiphy_register: |
3ffc2a90 JB |
866 | if (local->wiphy_ciphers_allocated) |
867 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 868 | kfree(local->int_scan_req); |
f0706e82 JB |
869 | return result; |
870 | } | |
871 | EXPORT_SYMBOL(ieee80211_register_hw); | |
872 | ||
f0706e82 JB |
873 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
874 | { | |
875 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
876 | |
877 | tasklet_kill(&local->tx_pending_tasklet); | |
878 | tasklet_kill(&local->tasklet); | |
879 | ||
10f644a4 JB |
880 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
881 | &local->network_latency_notifier); | |
26b36cfe | 882 | #ifdef CONFIG_INET |
2b2c009e | 883 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 884 | #endif |
10f644a4 | 885 | |
f0706e82 JB |
886 | rtnl_lock(); |
887 | ||
79010420 JB |
888 | /* |
889 | * At this point, interface list manipulations are fine | |
890 | * because the driver cannot be handing us frames any | |
891 | * more and the tasklet is killed. | |
892 | */ | |
75636525 | 893 | ieee80211_remove_interfaces(local); |
5b2812e9 | 894 | |
f0706e82 JB |
895 | rtnl_unlock(); |
896 | ||
071249b1 JB |
897 | /* |
898 | * Now all work items will be gone, but the | |
899 | * timer might still be armed, so delete it | |
900 | */ | |
901 | del_timer_sync(&local->work_timer); | |
902 | ||
258086a4 | 903 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
904 | cancel_work_sync(&local->reconfig_filter); |
905 | ||
f0706e82 JB |
906 | ieee80211_clear_tx_pending(local); |
907 | sta_info_stop(local); | |
908 | rate_control_deinitialize(local); | |
909 | ||
f64f9e71 JP |
910 | if (skb_queue_len(&local->skb_queue) || |
911 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 912 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
913 | skb_queue_purge(&local->skb_queue); |
914 | skb_queue_purge(&local->skb_queue_unreliable); | |
915 | ||
42935eca | 916 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
917 | wiphy_unregister(local->hw.wiphy); |
918 | ieee80211_wep_free(local); | |
919 | ieee80211_led_exit(local); | |
5ba63533 | 920 | kfree(local->int_scan_req); |
f0706e82 JB |
921 | } |
922 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
923 | ||
924 | void ieee80211_free_hw(struct ieee80211_hw *hw) | |
925 | { | |
926 | struct ieee80211_local *local = hw_to_local(hw); | |
927 | ||
c771c9d8 | 928 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 929 | mutex_destroy(&local->mtx); |
c771c9d8 | 930 | |
3ffc2a90 JB |
931 | if (local->wiphy_ciphers_allocated) |
932 | kfree(local->hw.wiphy->cipher_suites); | |
933 | ||
f0706e82 JB |
934 | wiphy_free(local->hw.wiphy); |
935 | } | |
936 | EXPORT_SYMBOL(ieee80211_free_hw); | |
937 | ||
f0706e82 JB |
938 | static int __init ieee80211_init(void) |
939 | { | |
940 | struct sk_buff *skb; | |
941 | int ret; | |
942 | ||
e039fa4a JB |
943 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
944 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 945 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 946 | |
cccf129f FF |
947 | ret = rc80211_minstrel_init(); |
948 | if (ret) | |
949 | return ret; | |
950 | ||
ec8aa669 FF |
951 | ret = rc80211_minstrel_ht_init(); |
952 | if (ret) | |
953 | goto err_minstrel; | |
954 | ||
4b475898 | 955 | ret = rc80211_pid_init(); |
ad018375 | 956 | if (ret) |
47846c9b | 957 | goto err_pid; |
f0706e82 | 958 | |
47846c9b JB |
959 | ret = ieee80211_iface_init(); |
960 | if (ret) | |
961 | goto err_netdev; | |
e9f207f0 | 962 | |
f0706e82 | 963 | return 0; |
47846c9b JB |
964 | err_netdev: |
965 | rc80211_pid_exit(); | |
966 | err_pid: | |
ec8aa669 FF |
967 | rc80211_minstrel_ht_exit(); |
968 | err_minstrel: | |
47846c9b JB |
969 | rc80211_minstrel_exit(); |
970 | ||
971 | return ret; | |
f0706e82 JB |
972 | } |
973 | ||
f0706e82 JB |
974 | static void __exit ieee80211_exit(void) |
975 | { | |
4b475898 | 976 | rc80211_pid_exit(); |
ec8aa669 | 977 | rc80211_minstrel_ht_exit(); |
cccf129f | 978 | rc80211_minstrel_exit(); |
ac71c691 | 979 | |
f7a92144 LCC |
980 | if (mesh_allocated) |
981 | ieee80211s_stop(); | |
902acc78 | 982 | |
47846c9b | 983 | ieee80211_iface_exit(); |
f0706e82 JB |
984 | } |
985 | ||
986 | ||
ca9938fe | 987 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
988 | module_exit(ieee80211_exit); |
989 | ||
990 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
991 | MODULE_LICENSE("GPL"); |