]>
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 JB |
247 | break; |
248 | case NL80211_IFTYPE_MESH_POINT: | |
249 | sdata->vif.bss_conf.enable_beacon = true; | |
250 | break; | |
251 | default: | |
252 | /* not reached */ | |
253 | WARN_ON(1); | |
254 | break; | |
255 | } | |
256 | } | |
257 | } | |
258 | ||
12375ef9 | 259 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
260 | } |
261 | ||
f698d856 | 262 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 263 | { |
bda3933a JB |
264 | sdata->vif.bss_conf.use_cts_prot = false; |
265 | sdata->vif.bss_conf.use_short_preamble = false; | |
266 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
267 | return BSS_CHANGED_ERP_CTS_PROT | |
268 | BSS_CHANGED_ERP_PREAMBLE | | |
269 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
270 | } |
271 | ||
f0706e82 JB |
272 | static void ieee80211_tasklet_handler(unsigned long data) |
273 | { | |
274 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
275 | struct sk_buff *skb; | |
f0706e82 JB |
276 | |
277 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
278 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
279 | switch (skb->pkt_type) { | |
280 | case IEEE80211_RX_MSG: | |
51fb61e7 | 281 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
282 | * netstack. */ |
283 | skb->pkt_type = 0; | |
f1d58c25 | 284 | ieee80211_rx(local_to_hw(local), skb); |
f0706e82 JB |
285 | break; |
286 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 287 | skb->pkt_type = 0; |
e039fa4a | 288 | ieee80211_tx_status(local_to_hw(local), skb); |
f0706e82 | 289 | break; |
f4ea83dd | 290 | default: |
5e3f3089 LF |
291 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
292 | skb->pkt_type); | |
f0706e82 JB |
293 | dev_kfree_skb(skb); |
294 | break; | |
295 | } | |
296 | } | |
297 | } | |
298 | ||
f2753ddb JB |
299 | static void ieee80211_restart_work(struct work_struct *work) |
300 | { | |
301 | struct ieee80211_local *local = | |
302 | container_of(work, struct ieee80211_local, restart_work); | |
303 | ||
bc86863d SG |
304 | /* wait for scan work complete */ |
305 | flush_workqueue(local->workqueue); | |
306 | ||
307 | mutex_lock(&local->mtx); | |
308 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), | |
309 | "%s called with hardware scan in progress\n", __func__); | |
310 | mutex_unlock(&local->mtx); | |
311 | ||
f2753ddb | 312 | rtnl_lock(); |
4136c422 | 313 | ieee80211_scan_cancel(local); |
f2753ddb JB |
314 | ieee80211_reconfig(local); |
315 | rtnl_unlock(); | |
316 | } | |
317 | ||
318 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
319 | { | |
320 | struct ieee80211_local *local = hw_to_local(hw); | |
321 | ||
b5878a2d JB |
322 | trace_api_restart_hw(local); |
323 | ||
18145c69 | 324 | /* use this reason, ieee80211_reconfig will unblock it */ |
f2753ddb JB |
325 | ieee80211_stop_queues_by_reason(hw, |
326 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
327 | ||
328 | schedule_work(&local->restart_work); | |
329 | } | |
330 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
331 | ||
0f78231b JB |
332 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
333 | { | |
334 | struct ieee80211_local *local = | |
335 | container_of(work, struct ieee80211_local, recalc_smps); | |
336 | ||
337 | mutex_lock(&local->iflist_mtx); | |
025e6be2 | 338 | ieee80211_recalc_smps(local); |
0f78231b JB |
339 | mutex_unlock(&local->iflist_mtx); |
340 | } | |
341 | ||
26b36cfe | 342 | #ifdef CONFIG_INET |
2b2c009e JO |
343 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
344 | unsigned long data, void *arg) | |
345 | { | |
346 | struct in_ifaddr *ifa = arg; | |
347 | struct ieee80211_local *local = | |
348 | container_of(nb, struct ieee80211_local, | |
349 | ifa_notifier); | |
350 | struct net_device *ndev = ifa->ifa_dev->dev; | |
351 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 352 | struct in_device *idev; |
2b2c009e | 353 | struct ieee80211_sub_if_data *sdata; |
68542962 | 354 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 355 | struct ieee80211_if_managed *ifmgd; |
68542962 | 356 | int c = 0; |
2b2c009e JO |
357 | |
358 | /* Make sure it's our interface that got changed */ | |
359 | if (!wdev) | |
360 | return NOTIFY_DONE; | |
361 | ||
362 | if (wdev->wiphy != local->hw.wiphy) | |
363 | return NOTIFY_DONE; | |
364 | ||
2b2c009e | 365 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 366 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e | 367 | |
26a58456 JB |
368 | if (!ieee80211_sdata_running(sdata)) |
369 | return NOTIFY_DONE; | |
370 | ||
2b2c009e JO |
371 | /* ARP filtering is only supported in managed mode */ |
372 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
373 | return NOTIFY_DONE; | |
374 | ||
95ae6b22 | 375 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
376 | if (!idev) |
377 | return NOTIFY_DONE; | |
378 | ||
2b2c009e JO |
379 | ifmgd = &sdata->u.mgd; |
380 | mutex_lock(&ifmgd->mtx); | |
68542962 JO |
381 | |
382 | /* Copy the addresses to the bss_conf list */ | |
383 | ifa = idev->ifa_list; | |
384 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { | |
385 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
386 | ifa = ifa->ifa_next; | |
387 | c++; | |
388 | } | |
389 | ||
390 | /* If not all addresses fit the list, disable filtering */ | |
391 | if (ifa) { | |
392 | sdata->arp_filter_state = false; | |
393 | c = 0; | |
394 | } else { | |
395 | sdata->arp_filter_state = true; | |
396 | } | |
397 | bss_conf->arp_addr_cnt = c; | |
398 | ||
399 | /* Configure driver only if associated */ | |
400 | if (ifmgd->associated) { | |
401 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; | |
402 | ieee80211_bss_info_change_notify(sdata, | |
403 | BSS_CHANGED_ARP_FILTER); | |
404 | } | |
405 | ||
2b2c009e JO |
406 | mutex_unlock(&ifmgd->mtx); |
407 | ||
408 | return NOTIFY_DONE; | |
409 | } | |
26b36cfe | 410 | #endif |
2b2c009e | 411 | |
4e6cbfd0 JL |
412 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
413 | { | |
414 | struct ieee80211_local *local = | |
415 | container_of(napi, struct ieee80211_local, napi); | |
416 | ||
417 | return local->ops->napi_poll(&local->hw, budget); | |
418 | } | |
419 | ||
420 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) | |
421 | { | |
422 | struct ieee80211_local *local = hw_to_local(hw); | |
423 | ||
424 | napi_schedule(&local->napi); | |
425 | } | |
426 | EXPORT_SYMBOL(ieee80211_napi_schedule); | |
427 | ||
428 | void ieee80211_napi_complete(struct ieee80211_hw *hw) | |
429 | { | |
430 | struct ieee80211_local *local = hw_to_local(hw); | |
431 | ||
432 | napi_complete(&local->napi); | |
433 | } | |
434 | EXPORT_SYMBOL(ieee80211_napi_complete); | |
435 | ||
2e161f78 JB |
436 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
437 | static const struct ieee80211_txrx_stypes | |
438 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
439 | [NL80211_IFTYPE_ADHOC] = { | |
440 | .tx = 0xffff, | |
441 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
442 | }, | |
443 | [NL80211_IFTYPE_STATION] = { | |
444 | .tx = 0xffff, | |
445 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
446 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
447 | }, | |
448 | [NL80211_IFTYPE_AP] = { | |
449 | .tx = 0xffff, | |
450 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
451 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
452 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
453 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
454 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
455 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
456 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
457 | }, | |
458 | [NL80211_IFTYPE_AP_VLAN] = { | |
459 | /* copy AP */ | |
460 | .tx = 0xffff, | |
461 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
462 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
463 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
464 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
465 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
466 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
467 | BIT(IEEE80211_STYPE_ACTION >> 4), |
468 | }, | |
469 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
470 | .tx = 0xffff, | |
471 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
472 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
473 | }, | |
474 | [NL80211_IFTYPE_P2P_GO] = { | |
475 | .tx = 0xffff, | |
476 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
477 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
478 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
479 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
480 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
481 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
482 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
483 | }, | |
484 | }; | |
485 | ||
f0706e82 JB |
486 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
487 | const struct ieee80211_ops *ops) | |
488 | { | |
f0706e82 | 489 | struct ieee80211_local *local; |
96f5e66e | 490 | int priv_size, i; |
f0706e82 JB |
491 | struct wiphy *wiphy; |
492 | ||
493 | /* Ensure 32-byte alignment of our private data and hw private data. | |
494 | * We use the wiphy priv data for both our ieee80211_local and for | |
495 | * the driver's private data | |
496 | * | |
497 | * In memory it'll be like this: | |
498 | * | |
499 | * +-------------------------+ | |
500 | * | struct wiphy | | |
501 | * +-------------------------+ | |
502 | * | struct ieee80211_local | | |
503 | * +-------------------------+ | |
504 | * | driver's private data | | |
505 | * +-------------------------+ | |
506 | * | |
507 | */ | |
1ce8e7b5 | 508 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
509 | |
510 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
511 | ||
512 | if (!wiphy) | |
513 | return NULL; | |
514 | ||
2e161f78 JB |
515 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
516 | ||
9bc383de JB |
517 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
518 | WIPHY_FLAG_4ADDR_AP | | |
519 | WIPHY_FLAG_4ADDR_STATION; | |
f0706e82 | 520 | wiphy->privid = mac80211_wiphy_privid; |
18a83659 | 521 | |
0c1ad2ca | 522 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
523 | |
524 | local = wiphy_priv(wiphy); | |
de95a54b | 525 | |
f0706e82 JB |
526 | local->hw.wiphy = wiphy; |
527 | ||
1ce8e7b5 | 528 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 | 529 | |
4480f15c | 530 | BUG_ON(!ops->tx); |
4150c572 JB |
531 | BUG_ON(!ops->start); |
532 | BUG_ON(!ops->stop); | |
4480f15c JB |
533 | BUG_ON(!ops->config); |
534 | BUG_ON(!ops->add_interface); | |
4150c572 JB |
535 | BUG_ON(!ops->remove_interface); |
536 | BUG_ON(!ops->configure_filter); | |
f0706e82 JB |
537 | local->ops = ops; |
538 | ||
e6a9854b JB |
539 | /* set up some defaults */ |
540 | local->hw.queues = 1; | |
541 | local->hw.max_rates = 1; | |
78be49ec | 542 | local->hw.max_report_rates = 0; |
b9a5f8ca JM |
543 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
544 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
c428c892 | 545 | local->user_power_level = -1; |
50ae0cf1 KV |
546 | local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
547 | local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
f0706e82 | 548 | |
79010420 | 549 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
550 | |
551 | __hw_addr_init(&local->mc_list); | |
552 | ||
c771c9d8 | 553 | mutex_init(&local->iflist_mtx); |
a1699b75 | 554 | mutex_init(&local->mtx); |
f0706e82 | 555 | |
ad0e2b5a | 556 | mutex_init(&local->key_mtx); |
3b8d81e0 | 557 | spin_lock_init(&local->filter_lock); |
ce7c9111 KV |
558 | spin_lock_init(&local->queue_stop_reason_lock); |
559 | ||
c2b13452 | 560 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 561 | |
af6b6374 JB |
562 | ieee80211_work_init(local); |
563 | ||
f2753ddb JB |
564 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
565 | ||
3ac64bee | 566 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b JB |
567 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
568 | local->smps_mode = IEEE80211_SMPS_OFF; | |
3ac64bee | 569 | |
520eb820 KV |
570 | INIT_WORK(&local->dynamic_ps_enable_work, |
571 | ieee80211_dynamic_ps_enable_work); | |
572 | INIT_WORK(&local->dynamic_ps_disable_work, | |
573 | ieee80211_dynamic_ps_disable_work); | |
574 | setup_timer(&local->dynamic_ps_timer, | |
575 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
576 | ||
f0706e82 JB |
577 | sta_info_init(local); |
578 | ||
a6a67db2 | 579 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 580 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
581 | atomic_set(&local->agg_queue_stop[i], 0); |
582 | } | |
f0706e82 JB |
583 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
584 | (unsigned long)local); | |
f0706e82 JB |
585 | |
586 | tasklet_init(&local->tasklet, | |
587 | ieee80211_tasklet_handler, | |
588 | (unsigned long) local); | |
f0706e82 JB |
589 | |
590 | skb_queue_head_init(&local->skb_queue); | |
591 | skb_queue_head_init(&local->skb_queue_unreliable); | |
592 | ||
4e6cbfd0 JL |
593 | /* init dummy netdev for use w/ NAPI */ |
594 | init_dummy_netdev(&local->napi_dev); | |
595 | ||
f0706e82 JB |
596 | return local_to_hw(local); |
597 | } | |
598 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
599 | ||
600 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
601 | { | |
602 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 | 603 | int result; |
8318d78a | 604 | enum ieee80211_band band; |
be4a4b6a | 605 | int channels, max_bitrates; |
5ef2d41a | 606 | bool supp_ht; |
25e47c18 | 607 | static const u32 cipher_suites[] = { |
5daa8a8e | 608 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
609 | WLAN_CIPHER_SUITE_WEP40, |
610 | WLAN_CIPHER_SUITE_WEP104, | |
611 | WLAN_CIPHER_SUITE_TKIP, | |
612 | WLAN_CIPHER_SUITE_CCMP, | |
613 | ||
614 | /* keep last -- depends on hw flags! */ | |
615 | WLAN_CIPHER_SUITE_AES_CMAC | |
616 | }; | |
8318d78a | 617 | |
78be49ec HS |
618 | if (hw->max_report_rates == 0) |
619 | hw->max_report_rates = hw->max_rates; | |
620 | ||
8318d78a JB |
621 | /* |
622 | * generic code guarantees at least one band, | |
623 | * set this very early because much code assumes | |
624 | * that hw.conf.channel is assigned | |
625 | */ | |
2a519311 | 626 | channels = 0; |
de95a54b | 627 | max_bitrates = 0; |
5ef2d41a | 628 | supp_ht = false; |
8318d78a JB |
629 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
630 | struct ieee80211_supported_band *sband; | |
631 | ||
632 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
633 | if (!sband) |
634 | continue; | |
635 | if (!local->oper_channel) { | |
8318d78a JB |
636 | /* init channel we're on */ |
637 | local->hw.conf.channel = | |
58905ca5 JB |
638 | local->oper_channel = &sband->channels[0]; |
639 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; | |
8318d78a | 640 | } |
de95a54b JB |
641 | channels += sband->n_channels; |
642 | ||
643 | if (max_bitrates < sband->n_bitrates) | |
644 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 645 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
8318d78a | 646 | } |
f0706e82 | 647 | |
5ba63533 JB |
648 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
649 | sizeof(void *) * channels, GFP_KERNEL); | |
650 | if (!local->int_scan_req) | |
2a519311 JB |
651 | return -ENOMEM; |
652 | ||
f59ac048 LR |
653 | /* if low-level driver supports AP, we also support VLAN */ |
654 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) | |
655 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
656 | ||
657 | /* mac80211 always supports monitor */ | |
658 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); | |
659 | ||
5eb5a52d JB |
660 | #ifndef CONFIG_MAC80211_MESH |
661 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
662 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
663 | #endif | |
664 | ||
a621fa4d JB |
665 | /* mac80211 supports control port protocol changing */ |
666 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
667 | ||
77965c97 JB |
668 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
669 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
670 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
671 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
672 | ||
ab13315a KV |
673 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
674 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
675 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
676 | ||
de95a54b JB |
677 | /* |
678 | * Calculate scan IE length -- we need this to alloc | |
679 | * memory and to subtract from the driver limit. It | |
680 | * includes the (extended) supported rates and HT | |
681 | * information -- SSID is the driver's responsibility. | |
682 | */ | |
683 | local->scan_ies_len = 4 + max_bitrates; /* (ext) supp rates */ | |
5ef2d41a JB |
684 | if (supp_ht) |
685 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b JB |
686 | |
687 | if (!local->ops->hw_scan) { | |
688 | /* For hw_scan, driver needs to set these up. */ | |
689 | local->hw.wiphy->max_scan_ssids = 4; | |
690 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
691 | } | |
692 | ||
693 | /* | |
694 | * If the driver supports any scan IEs, then assume the | |
695 | * limit includes the IEs mac80211 will add, otherwise | |
696 | * leave it at zero and let the driver sort it out; we | |
697 | * still pass our IEs to the driver but userspace will | |
698 | * not be allowed to in that case. | |
699 | */ | |
700 | if (local->hw.wiphy->max_scan_ie_len) | |
701 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
702 | ||
3ffc2a90 JB |
703 | /* Set up cipher suites unless driver already did */ |
704 | if (!local->hw.wiphy->cipher_suites) { | |
705 | local->hw.wiphy->cipher_suites = cipher_suites; | |
706 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
707 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
708 | local->hw.wiphy->n_cipher_suites--; | |
709 | } | |
5daa8a8e | 710 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
711 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
712 | local->hw.wiphy->cipher_suites += 2; | |
713 | local->hw.wiphy->n_cipher_suites -= 2; | |
714 | } else { | |
715 | u32 *suites; | |
716 | int r, w = 0; | |
717 | ||
718 | /* Filter out WEP */ | |
719 | ||
720 | suites = kmemdup( | |
721 | local->hw.wiphy->cipher_suites, | |
722 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
723 | GFP_KERNEL); | |
724 | if (!suites) | |
725 | return -ENOMEM; | |
726 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { | |
727 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
728 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
729 | suite == WLAN_CIPHER_SUITE_WEP104) | |
730 | continue; | |
731 | suites[w++] = suite; | |
732 | } | |
733 | local->hw.wiphy->cipher_suites = suites; | |
734 | local->hw.wiphy->n_cipher_suites = w; | |
735 | local->wiphy_ciphers_allocated = true; | |
736 | } | |
5daa8a8e | 737 | } |
25e47c18 | 738 | |
f0706e82 JB |
739 | result = wiphy_register(local->hw.wiphy); |
740 | if (result < 0) | |
2a519311 | 741 | goto fail_wiphy_register; |
f0706e82 | 742 | |
e2530083 JB |
743 | /* |
744 | * We use the number of queues for feature tests (QoS, HT) internally | |
745 | * so restrict them appropriately. | |
746 | */ | |
e2530083 JB |
747 | if (hw->queues > IEEE80211_MAX_QUEUES) |
748 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 749 | |
42935eca | 750 | local->workqueue = |
99b88a0e | 751 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
42935eca | 752 | if (!local->workqueue) { |
f0706e82 JB |
753 | result = -ENOMEM; |
754 | goto fail_workqueue; | |
755 | } | |
756 | ||
b306f453 JB |
757 | /* |
758 | * The hardware needs headroom for sending the frame, | |
759 | * and we need some headroom for passing the frame to monitor | |
760 | * interfaces, but never both at the same time. | |
761 | */ | |
d24deb25 GW |
762 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
763 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
33ccad35 JB |
764 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
765 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
b306f453 | 766 | |
e9f207f0 JB |
767 | debugfs_hw_add(local); |
768 | ||
b446918b HS |
769 | /* |
770 | * if the driver doesn't specify a max listen interval we | |
771 | * use 5 which should be a safe default | |
772 | */ | |
ea95bba4 | 773 | if (local->hw.max_listen_interval == 0) |
b446918b | 774 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
775 | |
776 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
777 | ||
ff616381 | 778 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 779 | |
f0706e82 JB |
780 | result = sta_info_start(local); |
781 | if (result < 0) | |
782 | goto fail_sta_info; | |
783 | ||
d4c4a9a1 | 784 | result = ieee80211_wep_init(local); |
3473187d | 785 | if (result < 0) |
0fb9a9ec JP |
786 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
787 | result); | |
d4c4a9a1 | 788 | |
f0706e82 | 789 | rtnl_lock(); |
f0706e82 | 790 | |
830f9038 JB |
791 | result = ieee80211_init_rate_ctrl_alg(local, |
792 | hw->rate_control_algorithm); | |
f0706e82 | 793 | if (result < 0) { |
0fb9a9ec JP |
794 | wiphy_debug(local->hw.wiphy, |
795 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
796 | goto fail_rate; |
797 | } | |
798 | ||
8dffff21 JB |
799 | /* add one default STA interface if supported */ |
800 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
801 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
802 | NL80211_IFTYPE_STATION, NULL); | |
803 | if (result) | |
0fb9a9ec JP |
804 | wiphy_warn(local->hw.wiphy, |
805 | "Failed to add default virtual iface\n"); | |
8dffff21 | 806 | } |
f0706e82 | 807 | |
f0706e82 JB |
808 | rtnl_unlock(); |
809 | ||
810 | ieee80211_led_init(local); | |
811 | ||
10f644a4 JB |
812 | local->network_latency_notifier.notifier_call = |
813 | ieee80211_max_network_latency; | |
814 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
815 | &local->network_latency_notifier); | |
10f644a4 JB |
816 | if (result) { |
817 | rtnl_lock(); | |
818 | goto fail_pm_qos; | |
819 | } | |
820 | ||
26b36cfe | 821 | #ifdef CONFIG_INET |
2b2c009e JO |
822 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
823 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
824 | if (result) | |
825 | goto fail_ifa; | |
26b36cfe | 826 | #endif |
2b2c009e | 827 | |
4e6cbfd0 JL |
828 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
829 | local->hw.napi_weight); | |
830 | ||
f0706e82 JB |
831 | return 0; |
832 | ||
93c08c32 | 833 | #ifdef CONFIG_INET |
2b2c009e JO |
834 | fail_ifa: |
835 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
836 | &local->network_latency_notifier); | |
837 | rtnl_lock(); | |
93c08c32 | 838 | #endif |
10f644a4 JB |
839 | fail_pm_qos: |
840 | ieee80211_led_exit(local); | |
841 | ieee80211_remove_interfaces(local); | |
10f644a4 | 842 | fail_rate: |
f0706e82 | 843 | rtnl_unlock(); |
d4c4a9a1 | 844 | ieee80211_wep_free(local); |
f0706e82 | 845 | sta_info_stop(local); |
10f644a4 | 846 | fail_sta_info: |
42935eca | 847 | destroy_workqueue(local->workqueue); |
10f644a4 | 848 | fail_workqueue: |
f0706e82 | 849 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 850 | fail_wiphy_register: |
3ffc2a90 JB |
851 | if (local->wiphy_ciphers_allocated) |
852 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 853 | kfree(local->int_scan_req); |
f0706e82 JB |
854 | return result; |
855 | } | |
856 | EXPORT_SYMBOL(ieee80211_register_hw); | |
857 | ||
f0706e82 JB |
858 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
859 | { | |
860 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
861 | |
862 | tasklet_kill(&local->tx_pending_tasklet); | |
863 | tasklet_kill(&local->tasklet); | |
864 | ||
10f644a4 JB |
865 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
866 | &local->network_latency_notifier); | |
26b36cfe | 867 | #ifdef CONFIG_INET |
2b2c009e | 868 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 869 | #endif |
10f644a4 | 870 | |
f0706e82 JB |
871 | rtnl_lock(); |
872 | ||
79010420 JB |
873 | /* |
874 | * At this point, interface list manipulations are fine | |
875 | * because the driver cannot be handing us frames any | |
876 | * more and the tasklet is killed. | |
877 | */ | |
75636525 | 878 | ieee80211_remove_interfaces(local); |
5b2812e9 | 879 | |
f0706e82 JB |
880 | rtnl_unlock(); |
881 | ||
071249b1 JB |
882 | /* |
883 | * Now all work items will be gone, but the | |
884 | * timer might still be armed, so delete it | |
885 | */ | |
886 | del_timer_sync(&local->work_timer); | |
887 | ||
258086a4 | 888 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
889 | cancel_work_sync(&local->reconfig_filter); |
890 | ||
f0706e82 JB |
891 | ieee80211_clear_tx_pending(local); |
892 | sta_info_stop(local); | |
893 | rate_control_deinitialize(local); | |
894 | ||
f64f9e71 JP |
895 | if (skb_queue_len(&local->skb_queue) || |
896 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 897 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
898 | skb_queue_purge(&local->skb_queue); |
899 | skb_queue_purge(&local->skb_queue_unreliable); | |
900 | ||
42935eca | 901 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
902 | wiphy_unregister(local->hw.wiphy); |
903 | ieee80211_wep_free(local); | |
904 | ieee80211_led_exit(local); | |
5ba63533 | 905 | kfree(local->int_scan_req); |
f0706e82 JB |
906 | } |
907 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
908 | ||
909 | void ieee80211_free_hw(struct ieee80211_hw *hw) | |
910 | { | |
911 | struct ieee80211_local *local = hw_to_local(hw); | |
912 | ||
c771c9d8 | 913 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 914 | mutex_destroy(&local->mtx); |
c771c9d8 | 915 | |
3ffc2a90 JB |
916 | if (local->wiphy_ciphers_allocated) |
917 | kfree(local->hw.wiphy->cipher_suites); | |
918 | ||
f0706e82 JB |
919 | wiphy_free(local->hw.wiphy); |
920 | } | |
921 | EXPORT_SYMBOL(ieee80211_free_hw); | |
922 | ||
f0706e82 JB |
923 | static int __init ieee80211_init(void) |
924 | { | |
925 | struct sk_buff *skb; | |
926 | int ret; | |
927 | ||
e039fa4a JB |
928 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
929 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 930 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 931 | |
cccf129f FF |
932 | ret = rc80211_minstrel_init(); |
933 | if (ret) | |
934 | return ret; | |
935 | ||
ec8aa669 FF |
936 | ret = rc80211_minstrel_ht_init(); |
937 | if (ret) | |
938 | goto err_minstrel; | |
939 | ||
4b475898 | 940 | ret = rc80211_pid_init(); |
ad018375 | 941 | if (ret) |
47846c9b | 942 | goto err_pid; |
f0706e82 | 943 | |
47846c9b JB |
944 | ret = ieee80211_iface_init(); |
945 | if (ret) | |
946 | goto err_netdev; | |
e9f207f0 | 947 | |
f0706e82 | 948 | return 0; |
47846c9b JB |
949 | err_netdev: |
950 | rc80211_pid_exit(); | |
951 | err_pid: | |
ec8aa669 FF |
952 | rc80211_minstrel_ht_exit(); |
953 | err_minstrel: | |
47846c9b JB |
954 | rc80211_minstrel_exit(); |
955 | ||
956 | return ret; | |
f0706e82 JB |
957 | } |
958 | ||
f0706e82 JB |
959 | static void __exit ieee80211_exit(void) |
960 | { | |
4b475898 | 961 | rc80211_pid_exit(); |
ec8aa669 | 962 | rc80211_minstrel_ht_exit(); |
cccf129f | 963 | rc80211_minstrel_exit(); |
ac71c691 | 964 | |
f7a92144 LCC |
965 | if (mesh_allocated) |
966 | ieee80211s_stop(); | |
902acc78 | 967 | |
47846c9b | 968 | ieee80211_iface_exit(); |
f0706e82 JB |
969 | } |
970 | ||
971 | ||
ca9938fe | 972 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
973 | module_exit(ieee80211_exit); |
974 | ||
975 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
976 | MODULE_LICENSE("GPL"); |