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Commit | Line | Data |
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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; | |
4f2e9d91 BG |
115 | /* If scanning on oper channel, use whatever channel-type |
116 | * is currently in use. | |
117 | */ | |
118 | if (chan == local->oper_channel) | |
119 | channel_type = local->_oper_channel_type; | |
120 | else | |
121 | channel_type = NL80211_CHAN_NO_HT; | |
b23b025f BG |
122 | } else if (local->tmp_channel) { |
123 | chan = scan_chan = local->tmp_channel; | |
124 | channel_type = local->tmp_channel_type; | |
125 | } else { | |
126 | chan = local->oper_channel; | |
127 | channel_type = local->_oper_channel_type; | |
128 | } | |
129 | ||
130 | if (chan != local->oper_channel || | |
131 | channel_type != local->_oper_channel_type) | |
132 | return false; | |
133 | ||
134 | /* Check current hardware-config against oper_channel. */ | |
135 | if ((local->oper_channel != local->hw.conf.channel) || | |
136 | (local->_oper_channel_type != local->hw.conf.channel_type)) | |
137 | return false; | |
138 | ||
139 | return true; | |
140 | } | |
141 | ||
e8975581 | 142 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
b2c258fb | 143 | { |
58905ca5 | 144 | struct ieee80211_channel *chan, *scan_chan; |
b2c258fb | 145 | int ret = 0; |
e8975581 | 146 | int power; |
094d05dc | 147 | enum nl80211_channel_type channel_type; |
ffd2778b | 148 | u32 offchannel_flag; |
f0706e82 | 149 | |
cb121bad JB |
150 | might_sleep(); |
151 | ||
58905ca5 JB |
152 | scan_chan = local->scan_channel; |
153 | ||
b23b025f BG |
154 | /* If this off-channel logic ever changes, ieee80211_on_oper_channel |
155 | * may need to change as well. | |
156 | */ | |
ffd2778b | 157 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
58905ca5 JB |
158 | if (scan_chan) { |
159 | chan = scan_chan; | |
4f2e9d91 BG |
160 | /* If scanning on oper channel, use whatever channel-type |
161 | * is currently in use. | |
162 | */ | |
163 | if (chan == local->oper_channel) | |
164 | channel_type = local->_oper_channel_type; | |
165 | else | |
166 | channel_type = NL80211_CHAN_NO_HT; | |
b23b025f | 167 | } else if (local->tmp_channel) { |
b8bc4b0a JB |
168 | chan = scan_chan = local->tmp_channel; |
169 | channel_type = local->tmp_channel_type; | |
72bdcf34 | 170 | } else { |
b2c258fb | 171 | chan = local->oper_channel; |
0aaffa9b | 172 | channel_type = local->_oper_channel_type; |
72bdcf34 | 173 | } |
b23b025f BG |
174 | |
175 | if (chan != local->oper_channel || | |
176 | channel_type != local->_oper_channel_type) | |
177 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; | |
178 | else | |
179 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
180 | ||
ffd2778b | 181 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 182 | |
ffd2778b | 183 | if (offchannel_flag || chan != local->hw.conf.channel || |
4797938c | 184 | channel_type != local->hw.conf.channel_type) { |
e8975581 | 185 | local->hw.conf.channel = chan; |
4797938c | 186 | local->hw.conf.channel_type = channel_type; |
e8975581 JB |
187 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
188 | } | |
8318d78a | 189 | |
0f78231b JB |
190 | if (!conf_is_ht(&local->hw.conf)) { |
191 | /* | |
192 | * mac80211.h documents that this is only valid | |
193 | * when the channel is set to an HT type, and | |
194 | * that otherwise STATIC is used. | |
195 | */ | |
196 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
197 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
198 | local->hw.conf.smps_mode = local->smps_mode; | |
199 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
200 | } | |
201 | ||
58905ca5 | 202 | if (scan_chan) |
e8975581 | 203 | power = chan->max_power; |
8318d78a | 204 | else |
a8302de9 VT |
205 | power = local->power_constr_level ? |
206 | (chan->max_power - local->power_constr_level) : | |
207 | chan->max_power; | |
208 | ||
47afbaf5 | 209 | if (local->user_power_level >= 0) |
a8302de9 VT |
210 | power = min(power, local->user_power_level); |
211 | ||
e8975581 JB |
212 | if (local->hw.conf.power_level != power) { |
213 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
214 | local->hw.conf.power_level = power; | |
215 | } | |
b2c258fb | 216 | |
e8975581 | 217 | if (changed && local->open_count) { |
24487981 | 218 | ret = drv_config(local, changed); |
d73782fd | 219 | /* |
447107fb | 220 | * Goal: |
d73782fd JB |
221 | * HW reconfiguration should never fail, the driver has told |
222 | * us what it can support so it should live up to that promise. | |
447107fb RC |
223 | * |
224 | * Current status: | |
225 | * rfkill is not integrated with mac80211 and a | |
226 | * configuration command can thus fail if hardware rfkill | |
227 | * is enabled | |
228 | * | |
229 | * FIXME: integrate rfkill with mac80211 and then add this | |
230 | * WARN_ON() back | |
231 | * | |
d73782fd | 232 | */ |
447107fb | 233 | /* WARN_ON(ret); */ |
d73782fd | 234 | } |
f0706e82 | 235 | |
b2c258fb JB |
236 | return ret; |
237 | } | |
f0706e82 | 238 | |
471b3efd JB |
239 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
240 | u32 changed) | |
d9430a32 | 241 | { |
471b3efd | 242 | struct ieee80211_local *local = sdata->local; |
9cef8737 | 243 | static const u8 zero[ETH_ALEN] = { 0 }; |
471b3efd JB |
244 | |
245 | if (!changed) | |
246 | return; | |
247 | ||
9cef8737 JB |
248 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
249 | /* | |
250 | * While not associated, claim a BSSID of all-zeroes | |
251 | * so that drivers don't do any weird things with the | |
252 | * BSSID at that time. | |
253 | */ | |
254 | if (sdata->vif.bss_conf.assoc) | |
255 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; | |
256 | else | |
257 | sdata->vif.bss_conf.bssid = zero; | |
258 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) | |
2d0ddec5 JB |
259 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
260 | else if (sdata->vif.type == NL80211_IFTYPE_AP) | |
47846c9b | 261 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
1be7fe8d BJ |
262 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
263 | sdata->vif.bss_conf.bssid = NULL; | |
2d0ddec5 | 264 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
2d0ddec5 JB |
265 | sdata->vif.bss_conf.bssid = zero; |
266 | } else { | |
267 | WARN_ON(1); | |
268 | return; | |
269 | } | |
270 | ||
271 | switch (sdata->vif.type) { | |
272 | case NL80211_IFTYPE_AP: | |
273 | case NL80211_IFTYPE_ADHOC: | |
1be7fe8d | 274 | case NL80211_IFTYPE_WDS: |
2d0ddec5 JB |
275 | case NL80211_IFTYPE_MESH_POINT: |
276 | break; | |
277 | default: | |
278 | /* do not warn to simplify caller in scan.c */ | |
279 | changed &= ~BSS_CHANGED_BEACON_ENABLED; | |
280 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) | |
281 | return; | |
282 | break; | |
283 | } | |
284 | ||
285 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
9607e6b6 | 286 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
b23b025f | 287 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
2d0ddec5 JB |
288 | sdata->vif.bss_conf.enable_beacon = false; |
289 | } else { | |
290 | /* | |
291 | * Beacon should be enabled, but AP mode must | |
292 | * check whether there is a beacon configured. | |
293 | */ | |
294 | switch (sdata->vif.type) { | |
295 | case NL80211_IFTYPE_AP: | |
296 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 297 | !!sdata->u.ap.beacon; |
2d0ddec5 JB |
298 | break; |
299 | case NL80211_IFTYPE_ADHOC: | |
300 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 301 | !!sdata->u.ibss.presp; |
2d0ddec5 | 302 | break; |
7659a193 | 303 | #ifdef CONFIG_MAC80211_MESH |
2d0ddec5 | 304 | case NL80211_IFTYPE_MESH_POINT: |
29cbe68c JB |
305 | sdata->vif.bss_conf.enable_beacon = |
306 | !!sdata->u.mesh.mesh_id_len; | |
2d0ddec5 | 307 | break; |
7659a193 | 308 | #endif |
2d0ddec5 JB |
309 | default: |
310 | /* not reached */ | |
311 | WARN_ON(1); | |
312 | break; | |
313 | } | |
314 | } | |
315 | } | |
316 | ||
12375ef9 | 317 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
318 | } |
319 | ||
f698d856 | 320 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 321 | { |
bda3933a JB |
322 | sdata->vif.bss_conf.use_cts_prot = false; |
323 | sdata->vif.bss_conf.use_short_preamble = false; | |
324 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
325 | return BSS_CHANGED_ERP_CTS_PROT | |
326 | BSS_CHANGED_ERP_PREAMBLE | | |
327 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
328 | } |
329 | ||
f0706e82 JB |
330 | static void ieee80211_tasklet_handler(unsigned long data) |
331 | { | |
332 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
333 | struct sk_buff *skb; | |
f0706e82 JB |
334 | |
335 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
336 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
337 | switch (skb->pkt_type) { | |
338 | case IEEE80211_RX_MSG: | |
51fb61e7 | 339 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
340 | * netstack. */ |
341 | skb->pkt_type = 0; | |
f1d58c25 | 342 | ieee80211_rx(local_to_hw(local), skb); |
f0706e82 JB |
343 | break; |
344 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 345 | skb->pkt_type = 0; |
e039fa4a | 346 | ieee80211_tx_status(local_to_hw(local), skb); |
f0706e82 | 347 | break; |
f4ea83dd | 348 | default: |
5e3f3089 LF |
349 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
350 | skb->pkt_type); | |
f0706e82 JB |
351 | dev_kfree_skb(skb); |
352 | break; | |
353 | } | |
354 | } | |
355 | } | |
356 | ||
f2753ddb JB |
357 | static void ieee80211_restart_work(struct work_struct *work) |
358 | { | |
359 | struct ieee80211_local *local = | |
360 | container_of(work, struct ieee80211_local, restart_work); | |
361 | ||
bc86863d SG |
362 | /* wait for scan work complete */ |
363 | flush_workqueue(local->workqueue); | |
364 | ||
365 | mutex_lock(&local->mtx); | |
366 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), | |
367 | "%s called with hardware scan in progress\n", __func__); | |
368 | mutex_unlock(&local->mtx); | |
369 | ||
f2753ddb | 370 | rtnl_lock(); |
4136c422 | 371 | ieee80211_scan_cancel(local); |
f2753ddb JB |
372 | ieee80211_reconfig(local); |
373 | rtnl_unlock(); | |
374 | } | |
375 | ||
376 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
377 | { | |
378 | struct ieee80211_local *local = hw_to_local(hw); | |
379 | ||
b5878a2d JB |
380 | trace_api_restart_hw(local); |
381 | ||
18145c69 | 382 | /* use this reason, ieee80211_reconfig will unblock it */ |
f2753ddb JB |
383 | ieee80211_stop_queues_by_reason(hw, |
384 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
385 | ||
386 | schedule_work(&local->restart_work); | |
387 | } | |
388 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
389 | ||
0f78231b JB |
390 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
391 | { | |
392 | struct ieee80211_local *local = | |
393 | container_of(work, struct ieee80211_local, recalc_smps); | |
394 | ||
395 | mutex_lock(&local->iflist_mtx); | |
025e6be2 | 396 | ieee80211_recalc_smps(local); |
0f78231b JB |
397 | mutex_unlock(&local->iflist_mtx); |
398 | } | |
399 | ||
26b36cfe | 400 | #ifdef CONFIG_INET |
2b2c009e JO |
401 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
402 | unsigned long data, void *arg) | |
403 | { | |
404 | struct in_ifaddr *ifa = arg; | |
405 | struct ieee80211_local *local = | |
406 | container_of(nb, struct ieee80211_local, | |
407 | ifa_notifier); | |
408 | struct net_device *ndev = ifa->ifa_dev->dev; | |
409 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 410 | struct in_device *idev; |
2b2c009e | 411 | struct ieee80211_sub_if_data *sdata; |
68542962 | 412 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 413 | struct ieee80211_if_managed *ifmgd; |
68542962 | 414 | int c = 0; |
2b2c009e JO |
415 | |
416 | /* Make sure it's our interface that got changed */ | |
417 | if (!wdev) | |
418 | return NOTIFY_DONE; | |
419 | ||
420 | if (wdev->wiphy != local->hw.wiphy) | |
421 | return NOTIFY_DONE; | |
422 | ||
2b2c009e | 423 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 424 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e | 425 | |
26a58456 JB |
426 | if (!ieee80211_sdata_running(sdata)) |
427 | return NOTIFY_DONE; | |
428 | ||
2b2c009e JO |
429 | /* ARP filtering is only supported in managed mode */ |
430 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
431 | return NOTIFY_DONE; | |
432 | ||
95ae6b22 | 433 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
434 | if (!idev) |
435 | return NOTIFY_DONE; | |
436 | ||
2b2c009e JO |
437 | ifmgd = &sdata->u.mgd; |
438 | mutex_lock(&ifmgd->mtx); | |
68542962 JO |
439 | |
440 | /* Copy the addresses to the bss_conf list */ | |
441 | ifa = idev->ifa_list; | |
442 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { | |
443 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
444 | ifa = ifa->ifa_next; | |
445 | c++; | |
446 | } | |
447 | ||
448 | /* If not all addresses fit the list, disable filtering */ | |
449 | if (ifa) { | |
450 | sdata->arp_filter_state = false; | |
451 | c = 0; | |
452 | } else { | |
453 | sdata->arp_filter_state = true; | |
454 | } | |
455 | bss_conf->arp_addr_cnt = c; | |
456 | ||
457 | /* Configure driver only if associated */ | |
458 | if (ifmgd->associated) { | |
459 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; | |
460 | ieee80211_bss_info_change_notify(sdata, | |
461 | BSS_CHANGED_ARP_FILTER); | |
462 | } | |
463 | ||
2b2c009e JO |
464 | mutex_unlock(&ifmgd->mtx); |
465 | ||
466 | return NOTIFY_DONE; | |
467 | } | |
26b36cfe | 468 | #endif |
2b2c009e | 469 | |
4e6cbfd0 JL |
470 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
471 | { | |
472 | struct ieee80211_local *local = | |
473 | container_of(napi, struct ieee80211_local, napi); | |
474 | ||
475 | return local->ops->napi_poll(&local->hw, budget); | |
476 | } | |
477 | ||
478 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) | |
479 | { | |
480 | struct ieee80211_local *local = hw_to_local(hw); | |
481 | ||
482 | napi_schedule(&local->napi); | |
483 | } | |
484 | EXPORT_SYMBOL(ieee80211_napi_schedule); | |
485 | ||
486 | void ieee80211_napi_complete(struct ieee80211_hw *hw) | |
487 | { | |
488 | struct ieee80211_local *local = hw_to_local(hw); | |
489 | ||
490 | napi_complete(&local->napi); | |
491 | } | |
492 | EXPORT_SYMBOL(ieee80211_napi_complete); | |
493 | ||
2e161f78 JB |
494 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
495 | static const struct ieee80211_txrx_stypes | |
496 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
497 | [NL80211_IFTYPE_ADHOC] = { | |
498 | .tx = 0xffff, | |
499 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
500 | }, | |
501 | [NL80211_IFTYPE_STATION] = { | |
502 | .tx = 0xffff, | |
503 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
504 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
505 | }, | |
506 | [NL80211_IFTYPE_AP] = { | |
507 | .tx = 0xffff, | |
508 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
509 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
510 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
511 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
512 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
513 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
514 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
515 | }, | |
516 | [NL80211_IFTYPE_AP_VLAN] = { | |
517 | /* copy AP */ | |
518 | .tx = 0xffff, | |
519 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
520 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
521 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
522 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
523 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
524 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
525 | BIT(IEEE80211_STYPE_ACTION >> 4), |
526 | }, | |
527 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
528 | .tx = 0xffff, | |
529 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
530 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
531 | }, | |
532 | [NL80211_IFTYPE_P2P_GO] = { | |
533 | .tx = 0xffff, | |
534 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
535 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
536 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
537 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
538 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
539 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
540 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
541 | }, | |
c7108a71 JC |
542 | [NL80211_IFTYPE_MESH_POINT] = { |
543 | .tx = 0xffff, | |
544 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
545 | }, | |
2e161f78 JB |
546 | }; |
547 | ||
f0706e82 JB |
548 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
549 | const struct ieee80211_ops *ops) | |
550 | { | |
f0706e82 | 551 | struct ieee80211_local *local; |
96f5e66e | 552 | int priv_size, i; |
f0706e82 JB |
553 | struct wiphy *wiphy; |
554 | ||
555 | /* Ensure 32-byte alignment of our private data and hw private data. | |
556 | * We use the wiphy priv data for both our ieee80211_local and for | |
557 | * the driver's private data | |
558 | * | |
559 | * In memory it'll be like this: | |
560 | * | |
561 | * +-------------------------+ | |
562 | * | struct wiphy | | |
563 | * +-------------------------+ | |
564 | * | struct ieee80211_local | | |
565 | * +-------------------------+ | |
566 | * | driver's private data | | |
567 | * +-------------------------+ | |
568 | * | |
569 | */ | |
1ce8e7b5 | 570 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
571 | |
572 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
573 | ||
574 | if (!wiphy) | |
575 | return NULL; | |
576 | ||
2e161f78 JB |
577 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
578 | ||
207aba60 JB |
579 | wiphy->privid = mac80211_wiphy_privid; |
580 | ||
9bc383de JB |
581 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
582 | WIPHY_FLAG_4ADDR_AP | | |
f7e0104c JB |
583 | WIPHY_FLAG_4ADDR_STATION | |
584 | WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS; | |
207aba60 JB |
585 | |
586 | if (!ops->set_key) | |
587 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 588 | |
0c1ad2ca | 589 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
590 | |
591 | local = wiphy_priv(wiphy); | |
de95a54b | 592 | |
f0706e82 JB |
593 | local->hw.wiphy = wiphy; |
594 | ||
1ce8e7b5 | 595 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 | 596 | |
4480f15c | 597 | BUG_ON(!ops->tx); |
4150c572 JB |
598 | BUG_ON(!ops->start); |
599 | BUG_ON(!ops->stop); | |
4480f15c JB |
600 | BUG_ON(!ops->config); |
601 | BUG_ON(!ops->add_interface); | |
4150c572 JB |
602 | BUG_ON(!ops->remove_interface); |
603 | BUG_ON(!ops->configure_filter); | |
f0706e82 JB |
604 | local->ops = ops; |
605 | ||
e6a9854b JB |
606 | /* set up some defaults */ |
607 | local->hw.queues = 1; | |
608 | local->hw.max_rates = 1; | |
78be49ec | 609 | local->hw.max_report_rates = 0; |
df6ba5d8 | 610 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
b9a5f8ca JM |
611 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
612 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
c428c892 | 613 | local->user_power_level = -1; |
50ae0cf1 KV |
614 | local->uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
615 | local->uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
f0706e82 | 616 | |
79010420 | 617 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
618 | |
619 | __hw_addr_init(&local->mc_list); | |
620 | ||
c771c9d8 | 621 | mutex_init(&local->iflist_mtx); |
a1699b75 | 622 | mutex_init(&local->mtx); |
f0706e82 | 623 | |
ad0e2b5a | 624 | mutex_init(&local->key_mtx); |
3b8d81e0 | 625 | spin_lock_init(&local->filter_lock); |
ce7c9111 KV |
626 | spin_lock_init(&local->queue_stop_reason_lock); |
627 | ||
681c4d07 JB |
628 | /* |
629 | * The rx_skb_queue is only accessed from tasklets, | |
630 | * but other SKB queues are used from within IRQ | |
631 | * context. Therefore, this one needs a different | |
632 | * locking class so our direct, non-irq-safe use of | |
633 | * the queue's lock doesn't throw lockdep warnings. | |
634 | */ | |
635 | skb_queue_head_init_class(&local->rx_skb_queue, | |
636 | &ieee80211_rx_skb_queue_class); | |
24a8fdad | 637 | |
c2b13452 | 638 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 639 | |
af6b6374 JB |
640 | ieee80211_work_init(local); |
641 | ||
f2753ddb JB |
642 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
643 | ||
3ac64bee | 644 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b JB |
645 | INIT_WORK(&local->recalc_smps, ieee80211_recalc_smps_work); |
646 | local->smps_mode = IEEE80211_SMPS_OFF; | |
3ac64bee | 647 | |
520eb820 KV |
648 | INIT_WORK(&local->dynamic_ps_enable_work, |
649 | ieee80211_dynamic_ps_enable_work); | |
650 | INIT_WORK(&local->dynamic_ps_disable_work, | |
651 | ieee80211_dynamic_ps_disable_work); | |
652 | setup_timer(&local->dynamic_ps_timer, | |
653 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
654 | ||
f0706e82 JB |
655 | sta_info_init(local); |
656 | ||
a6a67db2 | 657 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 658 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
659 | atomic_set(&local->agg_queue_stop[i], 0); |
660 | } | |
f0706e82 JB |
661 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
662 | (unsigned long)local); | |
f0706e82 JB |
663 | |
664 | tasklet_init(&local->tasklet, | |
665 | ieee80211_tasklet_handler, | |
666 | (unsigned long) local); | |
f0706e82 JB |
667 | |
668 | skb_queue_head_init(&local->skb_queue); | |
669 | skb_queue_head_init(&local->skb_queue_unreliable); | |
670 | ||
4e6cbfd0 JL |
671 | /* init dummy netdev for use w/ NAPI */ |
672 | init_dummy_netdev(&local->napi_dev); | |
673 | ||
fe67c913 JB |
674 | ieee80211_led_names(local); |
675 | ||
21f83589 JB |
676 | ieee80211_hw_roc_setup(local); |
677 | ||
f0706e82 JB |
678 | return local_to_hw(local); |
679 | } | |
680 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
681 | ||
682 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
683 | { | |
684 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 | 685 | int result; |
8318d78a | 686 | enum ieee80211_band band; |
be4a4b6a | 687 | int channels, max_bitrates; |
5ef2d41a | 688 | bool supp_ht; |
25e47c18 | 689 | static const u32 cipher_suites[] = { |
5daa8a8e | 690 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
691 | WLAN_CIPHER_SUITE_WEP40, |
692 | WLAN_CIPHER_SUITE_WEP104, | |
693 | WLAN_CIPHER_SUITE_TKIP, | |
694 | WLAN_CIPHER_SUITE_CCMP, | |
695 | ||
696 | /* keep last -- depends on hw flags! */ | |
697 | WLAN_CIPHER_SUITE_AES_CMAC | |
698 | }; | |
8318d78a | 699 | |
78be49ec HS |
700 | if (hw->max_report_rates == 0) |
701 | hw->max_report_rates = hw->max_rates; | |
702 | ||
8318d78a JB |
703 | /* |
704 | * generic code guarantees at least one band, | |
705 | * set this very early because much code assumes | |
706 | * that hw.conf.channel is assigned | |
707 | */ | |
2a519311 | 708 | channels = 0; |
de95a54b | 709 | max_bitrates = 0; |
5ef2d41a | 710 | supp_ht = false; |
8318d78a JB |
711 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
712 | struct ieee80211_supported_band *sband; | |
713 | ||
714 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
715 | if (!sband) |
716 | continue; | |
717 | if (!local->oper_channel) { | |
8318d78a JB |
718 | /* init channel we're on */ |
719 | local->hw.conf.channel = | |
58905ca5 JB |
720 | local->oper_channel = &sband->channels[0]; |
721 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; | |
8318d78a | 722 | } |
de95a54b JB |
723 | channels += sband->n_channels; |
724 | ||
725 | if (max_bitrates < sband->n_bitrates) | |
726 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 727 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
8318d78a | 728 | } |
f0706e82 | 729 | |
5ba63533 JB |
730 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
731 | sizeof(void *) * channels, GFP_KERNEL); | |
732 | if (!local->int_scan_req) | |
2a519311 JB |
733 | return -ENOMEM; |
734 | ||
f59ac048 LR |
735 | /* if low-level driver supports AP, we also support VLAN */ |
736 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) | |
737 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
738 | ||
739 | /* mac80211 always supports monitor */ | |
740 | local->hw.wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); | |
741 | ||
5eb5a52d JB |
742 | #ifndef CONFIG_MAC80211_MESH |
743 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
744 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
745 | #endif | |
746 | ||
a621fa4d JB |
747 | /* mac80211 supports control port protocol changing */ |
748 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
749 | ||
77965c97 JB |
750 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
751 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
752 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
753 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
754 | ||
ab13315a KV |
755 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
756 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
757 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
758 | ||
de95a54b JB |
759 | /* |
760 | * Calculate scan IE length -- we need this to alloc | |
761 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 762 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
763 | * information -- SSID is the driver's responsibility. |
764 | */ | |
dc9f48ce JM |
765 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
766 | 3 /* DS Params */; | |
5ef2d41a JB |
767 | if (supp_ht) |
768 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b JB |
769 | |
770 | if (!local->ops->hw_scan) { | |
771 | /* For hw_scan, driver needs to set these up. */ | |
772 | local->hw.wiphy->max_scan_ssids = 4; | |
773 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
774 | } | |
775 | ||
776 | /* | |
777 | * If the driver supports any scan IEs, then assume the | |
778 | * limit includes the IEs mac80211 will add, otherwise | |
779 | * leave it at zero and let the driver sort it out; we | |
780 | * still pass our IEs to the driver but userspace will | |
781 | * not be allowed to in that case. | |
782 | */ | |
783 | if (local->hw.wiphy->max_scan_ie_len) | |
784 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
785 | ||
3ffc2a90 JB |
786 | /* Set up cipher suites unless driver already did */ |
787 | if (!local->hw.wiphy->cipher_suites) { | |
788 | local->hw.wiphy->cipher_suites = cipher_suites; | |
789 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
790 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
791 | local->hw.wiphy->n_cipher_suites--; | |
792 | } | |
5daa8a8e | 793 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
794 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
795 | local->hw.wiphy->cipher_suites += 2; | |
796 | local->hw.wiphy->n_cipher_suites -= 2; | |
797 | } else { | |
798 | u32 *suites; | |
799 | int r, w = 0; | |
800 | ||
801 | /* Filter out WEP */ | |
802 | ||
803 | suites = kmemdup( | |
804 | local->hw.wiphy->cipher_suites, | |
805 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
806 | GFP_KERNEL); | |
807 | if (!suites) | |
808 | return -ENOMEM; | |
809 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { | |
810 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
811 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
812 | suite == WLAN_CIPHER_SUITE_WEP104) | |
813 | continue; | |
814 | suites[w++] = suite; | |
815 | } | |
816 | local->hw.wiphy->cipher_suites = suites; | |
817 | local->hw.wiphy->n_cipher_suites = w; | |
818 | local->wiphy_ciphers_allocated = true; | |
819 | } | |
5daa8a8e | 820 | } |
25e47c18 | 821 | |
21f83589 JB |
822 | if (!local->ops->remain_on_channel) |
823 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 824 | |
f0706e82 JB |
825 | result = wiphy_register(local->hw.wiphy); |
826 | if (result < 0) | |
2a519311 | 827 | goto fail_wiphy_register; |
f0706e82 | 828 | |
e2530083 JB |
829 | /* |
830 | * We use the number of queues for feature tests (QoS, HT) internally | |
831 | * so restrict them appropriately. | |
832 | */ | |
e2530083 JB |
833 | if (hw->queues > IEEE80211_MAX_QUEUES) |
834 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 835 | |
42935eca | 836 | local->workqueue = |
99b88a0e | 837 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
42935eca | 838 | if (!local->workqueue) { |
f0706e82 JB |
839 | result = -ENOMEM; |
840 | goto fail_workqueue; | |
841 | } | |
842 | ||
b306f453 JB |
843 | /* |
844 | * The hardware needs headroom for sending the frame, | |
845 | * and we need some headroom for passing the frame to monitor | |
846 | * interfaces, but never both at the same time. | |
847 | */ | |
d24deb25 GW |
848 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
849 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
33ccad35 JB |
850 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
851 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
b306f453 | 852 | |
e9f207f0 JB |
853 | debugfs_hw_add(local); |
854 | ||
b446918b HS |
855 | /* |
856 | * if the driver doesn't specify a max listen interval we | |
857 | * use 5 which should be a safe default | |
858 | */ | |
ea95bba4 | 859 | if (local->hw.max_listen_interval == 0) |
b446918b | 860 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
861 | |
862 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
863 | ||
ff616381 | 864 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 865 | |
f0706e82 JB |
866 | result = sta_info_start(local); |
867 | if (result < 0) | |
868 | goto fail_sta_info; | |
869 | ||
d4c4a9a1 | 870 | result = ieee80211_wep_init(local); |
3473187d | 871 | if (result < 0) |
0fb9a9ec JP |
872 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
873 | result); | |
d4c4a9a1 | 874 | |
f0706e82 | 875 | rtnl_lock(); |
f0706e82 | 876 | |
830f9038 JB |
877 | result = ieee80211_init_rate_ctrl_alg(local, |
878 | hw->rate_control_algorithm); | |
f0706e82 | 879 | if (result < 0) { |
0fb9a9ec JP |
880 | wiphy_debug(local->hw.wiphy, |
881 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
882 | goto fail_rate; |
883 | } | |
884 | ||
8dffff21 JB |
885 | /* add one default STA interface if supported */ |
886 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
887 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
888 | NL80211_IFTYPE_STATION, NULL); | |
889 | if (result) | |
0fb9a9ec JP |
890 | wiphy_warn(local->hw.wiphy, |
891 | "Failed to add default virtual iface\n"); | |
8dffff21 | 892 | } |
f0706e82 | 893 | |
f0706e82 JB |
894 | rtnl_unlock(); |
895 | ||
896 | ieee80211_led_init(local); | |
897 | ||
10f644a4 JB |
898 | local->network_latency_notifier.notifier_call = |
899 | ieee80211_max_network_latency; | |
900 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
901 | &local->network_latency_notifier); | |
10f644a4 JB |
902 | if (result) { |
903 | rtnl_lock(); | |
904 | goto fail_pm_qos; | |
905 | } | |
906 | ||
26b36cfe | 907 | #ifdef CONFIG_INET |
2b2c009e JO |
908 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
909 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
910 | if (result) | |
911 | goto fail_ifa; | |
26b36cfe | 912 | #endif |
2b2c009e | 913 | |
4e6cbfd0 JL |
914 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
915 | local->hw.napi_weight); | |
916 | ||
f0706e82 JB |
917 | return 0; |
918 | ||
93c08c32 | 919 | #ifdef CONFIG_INET |
2b2c009e JO |
920 | fail_ifa: |
921 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
922 | &local->network_latency_notifier); | |
923 | rtnl_lock(); | |
93c08c32 | 924 | #endif |
10f644a4 JB |
925 | fail_pm_qos: |
926 | ieee80211_led_exit(local); | |
927 | ieee80211_remove_interfaces(local); | |
10f644a4 | 928 | fail_rate: |
f0706e82 | 929 | rtnl_unlock(); |
d4c4a9a1 | 930 | ieee80211_wep_free(local); |
f0706e82 | 931 | sta_info_stop(local); |
10f644a4 | 932 | fail_sta_info: |
42935eca | 933 | destroy_workqueue(local->workqueue); |
10f644a4 | 934 | fail_workqueue: |
f0706e82 | 935 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 936 | fail_wiphy_register: |
3ffc2a90 JB |
937 | if (local->wiphy_ciphers_allocated) |
938 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 939 | kfree(local->int_scan_req); |
f0706e82 JB |
940 | return result; |
941 | } | |
942 | EXPORT_SYMBOL(ieee80211_register_hw); | |
943 | ||
f0706e82 JB |
944 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
945 | { | |
946 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
947 | |
948 | tasklet_kill(&local->tx_pending_tasklet); | |
949 | tasklet_kill(&local->tasklet); | |
950 | ||
10f644a4 JB |
951 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
952 | &local->network_latency_notifier); | |
26b36cfe | 953 | #ifdef CONFIG_INET |
2b2c009e | 954 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 955 | #endif |
10f644a4 | 956 | |
f0706e82 JB |
957 | rtnl_lock(); |
958 | ||
79010420 JB |
959 | /* |
960 | * At this point, interface list manipulations are fine | |
961 | * because the driver cannot be handing us frames any | |
962 | * more and the tasklet is killed. | |
963 | */ | |
75636525 | 964 | ieee80211_remove_interfaces(local); |
5b2812e9 | 965 | |
f0706e82 JB |
966 | rtnl_unlock(); |
967 | ||
071249b1 JB |
968 | /* |
969 | * Now all work items will be gone, but the | |
970 | * timer might still be armed, so delete it | |
971 | */ | |
972 | del_timer_sync(&local->work_timer); | |
973 | ||
258086a4 | 974 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
975 | cancel_work_sync(&local->reconfig_filter); |
976 | ||
f0706e82 JB |
977 | ieee80211_clear_tx_pending(local); |
978 | sta_info_stop(local); | |
979 | rate_control_deinitialize(local); | |
980 | ||
f64f9e71 JP |
981 | if (skb_queue_len(&local->skb_queue) || |
982 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 983 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
984 | skb_queue_purge(&local->skb_queue); |
985 | skb_queue_purge(&local->skb_queue_unreliable); | |
24a8fdad | 986 | skb_queue_purge(&local->rx_skb_queue); |
f0706e82 | 987 | |
42935eca | 988 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
989 | wiphy_unregister(local->hw.wiphy); |
990 | ieee80211_wep_free(local); | |
991 | ieee80211_led_exit(local); | |
5ba63533 | 992 | kfree(local->int_scan_req); |
f0706e82 JB |
993 | } |
994 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
995 | ||
996 | void ieee80211_free_hw(struct ieee80211_hw *hw) | |
997 | { | |
998 | struct ieee80211_local *local = hw_to_local(hw); | |
999 | ||
c771c9d8 | 1000 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1001 | mutex_destroy(&local->mtx); |
c771c9d8 | 1002 | |
3ffc2a90 JB |
1003 | if (local->wiphy_ciphers_allocated) |
1004 | kfree(local->hw.wiphy->cipher_suites); | |
1005 | ||
f0706e82 JB |
1006 | wiphy_free(local->hw.wiphy); |
1007 | } | |
1008 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1009 | ||
f0706e82 JB |
1010 | static int __init ieee80211_init(void) |
1011 | { | |
1012 | struct sk_buff *skb; | |
1013 | int ret; | |
1014 | ||
e039fa4a JB |
1015 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1016 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1017 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1018 | |
cccf129f FF |
1019 | ret = rc80211_minstrel_init(); |
1020 | if (ret) | |
1021 | return ret; | |
1022 | ||
ec8aa669 FF |
1023 | ret = rc80211_minstrel_ht_init(); |
1024 | if (ret) | |
1025 | goto err_minstrel; | |
1026 | ||
4b475898 | 1027 | ret = rc80211_pid_init(); |
ad018375 | 1028 | if (ret) |
47846c9b | 1029 | goto err_pid; |
f0706e82 | 1030 | |
47846c9b JB |
1031 | ret = ieee80211_iface_init(); |
1032 | if (ret) | |
1033 | goto err_netdev; | |
e9f207f0 | 1034 | |
f0706e82 | 1035 | return 0; |
47846c9b JB |
1036 | err_netdev: |
1037 | rc80211_pid_exit(); | |
1038 | err_pid: | |
ec8aa669 FF |
1039 | rc80211_minstrel_ht_exit(); |
1040 | err_minstrel: | |
47846c9b JB |
1041 | rc80211_minstrel_exit(); |
1042 | ||
1043 | return ret; | |
f0706e82 JB |
1044 | } |
1045 | ||
f0706e82 JB |
1046 | static void __exit ieee80211_exit(void) |
1047 | { | |
4b475898 | 1048 | rc80211_pid_exit(); |
ec8aa669 | 1049 | rc80211_minstrel_ht_exit(); |
cccf129f | 1050 | rc80211_minstrel_exit(); |
ac71c691 | 1051 | |
f7a92144 LCC |
1052 | if (mesh_allocated) |
1053 | ieee80211s_stop(); | |
902acc78 | 1054 | |
47846c9b | 1055 | ieee80211_iface_exit(); |
f0706e82 JB |
1056 | } |
1057 | ||
1058 | ||
ca9938fe | 1059 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1060 | module_exit(ieee80211_exit); |
1061 | ||
1062 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1063 | MODULE_LICENSE("GPL"); |