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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 | |
681c4d07 JB |
36 | static struct lock_class_key ieee80211_rx_skb_queue_class; |
37 | ||
0d143fe1 | 38 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 39 | { |
3ac64bee | 40 | u64 mc; |
4150c572 JB |
41 | unsigned int changed_flags; |
42 | unsigned int new_flags = 0; | |
43 | ||
53918994 | 44 | if (atomic_read(&local->iff_promiscs)) |
4150c572 JB |
45 | new_flags |= FIF_PROMISC_IN_BSS; |
46 | ||
53918994 | 47 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
48 | new_flags |= FIF_ALLMULTI; |
49 | ||
3ac64bee | 50 | if (local->monitors || local->scanning) |
8cc9a739 MW |
51 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
52 | ||
7be5086d JB |
53 | if (local->fif_probe_req || local->probe_req_reg) |
54 | new_flags |= FIF_PROBE_REQ; | |
55 | ||
8cc9a739 MW |
56 | if (local->fif_fcsfail) |
57 | new_flags |= FIF_FCSFAIL; | |
58 | ||
59 | if (local->fif_plcpfail) | |
60 | new_flags |= FIF_PLCPFAIL; | |
61 | ||
62 | if (local->fif_control) | |
63 | new_flags |= FIF_CONTROL; | |
64 | ||
65 | if (local->fif_other_bss) | |
66 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 67 | |
e3b90ca2 IP |
68 | if (local->fif_pspoll) |
69 | new_flags |= FIF_PSPOLL; | |
70 | ||
3ac64bee | 71 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
72 | changed_flags = local->filter_flags ^ new_flags; |
73 | ||
22bedad3 | 74 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
75 | spin_unlock_bh(&local->filter_lock); |
76 | ||
4150c572 JB |
77 | /* be a bit nasty */ |
78 | new_flags |= (1<<31); | |
79 | ||
3ac64bee | 80 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
81 | |
82 | WARN_ON(new_flags & (1<<31)); | |
83 | ||
84 | local->filter_flags = new_flags & ~(1<<31); | |
85 | } | |
86 | ||
3ac64bee JB |
87 | static void ieee80211_reconfig_filter(struct work_struct *work) |
88 | { | |
89 | struct ieee80211_local *local = | |
90 | container_of(work, struct ieee80211_local, reconfig_filter); | |
91 | ||
92 | ieee80211_configure_filter(local); | |
93 | } | |
94 | ||
b23b025f BG |
95 | /* |
96 | * Returns true if we are logically configured to be on | |
97 | * the operating channel AND the hardware-conf is currently | |
98 | * configured on the operating channel. Compares channel-type | |
99 | * as well. | |
100 | */ | |
101 | bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local) | |
102 | { | |
103 | struct ieee80211_channel *chan, *scan_chan; | |
104 | enum nl80211_channel_type channel_type; | |
105 | ||
106 | /* This logic needs to match logic in ieee80211_hw_config */ | |
107 | if (local->scan_channel) { | |
108 | chan = local->scan_channel; | |
4f2e9d91 BG |
109 | /* If scanning on oper channel, use whatever channel-type |
110 | * is currently in use. | |
111 | */ | |
112 | if (chan == local->oper_channel) | |
113 | channel_type = local->_oper_channel_type; | |
114 | else | |
115 | channel_type = NL80211_CHAN_NO_HT; | |
b23b025f BG |
116 | } else if (local->tmp_channel) { |
117 | chan = scan_chan = local->tmp_channel; | |
118 | channel_type = local->tmp_channel_type; | |
119 | } else { | |
120 | chan = local->oper_channel; | |
121 | channel_type = local->_oper_channel_type; | |
122 | } | |
123 | ||
124 | if (chan != local->oper_channel || | |
125 | channel_type != local->_oper_channel_type) | |
126 | return false; | |
127 | ||
128 | /* Check current hardware-config against oper_channel. */ | |
129 | if ((local->oper_channel != local->hw.conf.channel) || | |
130 | (local->_oper_channel_type != local->hw.conf.channel_type)) | |
131 | return false; | |
132 | ||
133 | return true; | |
134 | } | |
135 | ||
e8975581 | 136 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) |
b2c258fb | 137 | { |
58905ca5 | 138 | struct ieee80211_channel *chan, *scan_chan; |
b2c258fb | 139 | int ret = 0; |
e8975581 | 140 | int power; |
094d05dc | 141 | enum nl80211_channel_type channel_type; |
ffd2778b | 142 | u32 offchannel_flag; |
f0706e82 | 143 | |
cb121bad JB |
144 | might_sleep(); |
145 | ||
58905ca5 JB |
146 | scan_chan = local->scan_channel; |
147 | ||
b23b025f BG |
148 | /* If this off-channel logic ever changes, ieee80211_on_oper_channel |
149 | * may need to change as well. | |
150 | */ | |
ffd2778b | 151 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
58905ca5 JB |
152 | if (scan_chan) { |
153 | chan = scan_chan; | |
4f2e9d91 BG |
154 | /* If scanning on oper channel, use whatever channel-type |
155 | * is currently in use. | |
156 | */ | |
157 | if (chan == local->oper_channel) | |
158 | channel_type = local->_oper_channel_type; | |
159 | else | |
160 | channel_type = NL80211_CHAN_NO_HT; | |
b23b025f | 161 | } else if (local->tmp_channel) { |
b8bc4b0a JB |
162 | chan = scan_chan = local->tmp_channel; |
163 | channel_type = local->tmp_channel_type; | |
72bdcf34 | 164 | } else { |
b2c258fb | 165 | chan = local->oper_channel; |
0aaffa9b | 166 | channel_type = local->_oper_channel_type; |
72bdcf34 | 167 | } |
b23b025f BG |
168 | |
169 | if (chan != local->oper_channel || | |
170 | channel_type != local->_oper_channel_type) | |
171 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; | |
172 | else | |
173 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
174 | ||
ffd2778b | 175 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 176 | |
ffd2778b | 177 | if (offchannel_flag || chan != local->hw.conf.channel || |
4797938c | 178 | channel_type != local->hw.conf.channel_type) { |
e8975581 | 179 | local->hw.conf.channel = chan; |
4797938c | 180 | local->hw.conf.channel_type = channel_type; |
e8975581 JB |
181 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
182 | } | |
8318d78a | 183 | |
0f78231b JB |
184 | if (!conf_is_ht(&local->hw.conf)) { |
185 | /* | |
186 | * mac80211.h documents that this is only valid | |
187 | * when the channel is set to an HT type, and | |
188 | * that otherwise STATIC is used. | |
189 | */ | |
190 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
191 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
192 | local->hw.conf.smps_mode = local->smps_mode; | |
193 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
194 | } | |
195 | ||
59bdf3b0 BG |
196 | if ((local->scanning & SCAN_SW_SCANNING) || |
197 | (local->scanning & SCAN_HW_SCANNING)) | |
e8975581 | 198 | power = chan->max_power; |
8318d78a | 199 | else |
a8302de9 VT |
200 | power = local->power_constr_level ? |
201 | (chan->max_power - local->power_constr_level) : | |
202 | chan->max_power; | |
203 | ||
47afbaf5 | 204 | if (local->user_power_level >= 0) |
a8302de9 VT |
205 | power = min(power, local->user_power_level); |
206 | ||
e8975581 JB |
207 | if (local->hw.conf.power_level != power) { |
208 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
209 | local->hw.conf.power_level = power; | |
210 | } | |
b2c258fb | 211 | |
e8975581 | 212 | if (changed && local->open_count) { |
24487981 | 213 | ret = drv_config(local, changed); |
d73782fd | 214 | /* |
447107fb | 215 | * Goal: |
d73782fd JB |
216 | * HW reconfiguration should never fail, the driver has told |
217 | * us what it can support so it should live up to that promise. | |
447107fb RC |
218 | * |
219 | * Current status: | |
220 | * rfkill is not integrated with mac80211 and a | |
221 | * configuration command can thus fail if hardware rfkill | |
222 | * is enabled | |
223 | * | |
224 | * FIXME: integrate rfkill with mac80211 and then add this | |
225 | * WARN_ON() back | |
226 | * | |
d73782fd | 227 | */ |
447107fb | 228 | /* WARN_ON(ret); */ |
d73782fd | 229 | } |
f0706e82 | 230 | |
b2c258fb JB |
231 | return ret; |
232 | } | |
f0706e82 | 233 | |
471b3efd JB |
234 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
235 | u32 changed) | |
d9430a32 | 236 | { |
471b3efd | 237 | struct ieee80211_local *local = sdata->local; |
9cef8737 | 238 | static const u8 zero[ETH_ALEN] = { 0 }; |
471b3efd JB |
239 | |
240 | if (!changed) | |
241 | return; | |
242 | ||
9cef8737 JB |
243 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
244 | /* | |
245 | * While not associated, claim a BSSID of all-zeroes | |
246 | * so that drivers don't do any weird things with the | |
247 | * BSSID at that time. | |
248 | */ | |
249 | if (sdata->vif.bss_conf.assoc) | |
250 | sdata->vif.bss_conf.bssid = sdata->u.mgd.bssid; | |
251 | else | |
252 | sdata->vif.bss_conf.bssid = zero; | |
253 | } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) | |
2d0ddec5 JB |
254 | sdata->vif.bss_conf.bssid = sdata->u.ibss.bssid; |
255 | else if (sdata->vif.type == NL80211_IFTYPE_AP) | |
47846c9b | 256 | sdata->vif.bss_conf.bssid = sdata->vif.addr; |
1be7fe8d BJ |
257 | else if (sdata->vif.type == NL80211_IFTYPE_WDS) |
258 | sdata->vif.bss_conf.bssid = NULL; | |
2d0ddec5 | 259 | else if (ieee80211_vif_is_mesh(&sdata->vif)) { |
2d0ddec5 JB |
260 | sdata->vif.bss_conf.bssid = zero; |
261 | } else { | |
262 | WARN_ON(1); | |
263 | return; | |
264 | } | |
265 | ||
266 | switch (sdata->vif.type) { | |
267 | case NL80211_IFTYPE_AP: | |
268 | case NL80211_IFTYPE_ADHOC: | |
1be7fe8d | 269 | case NL80211_IFTYPE_WDS: |
2d0ddec5 JB |
270 | case NL80211_IFTYPE_MESH_POINT: |
271 | break; | |
272 | default: | |
273 | /* do not warn to simplify caller in scan.c */ | |
274 | changed &= ~BSS_CHANGED_BEACON_ENABLED; | |
275 | if (WARN_ON(changed & BSS_CHANGED_BEACON)) | |
276 | return; | |
277 | break; | |
278 | } | |
279 | ||
280 | if (changed & BSS_CHANGED_BEACON_ENABLED) { | |
9607e6b6 | 281 | if (local->quiescing || !ieee80211_sdata_running(sdata) || |
b23b025f | 282 | test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state)) { |
2d0ddec5 JB |
283 | sdata->vif.bss_conf.enable_beacon = false; |
284 | } else { | |
285 | /* | |
286 | * Beacon should be enabled, but AP mode must | |
287 | * check whether there is a beacon configured. | |
288 | */ | |
289 | switch (sdata->vif.type) { | |
290 | case NL80211_IFTYPE_AP: | |
291 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 292 | !!sdata->u.ap.beacon; |
2d0ddec5 JB |
293 | break; |
294 | case NL80211_IFTYPE_ADHOC: | |
295 | sdata->vif.bss_conf.enable_beacon = | |
0379185b | 296 | !!sdata->u.ibss.presp; |
2d0ddec5 | 297 | break; |
7659a193 | 298 | #ifdef CONFIG_MAC80211_MESH |
2d0ddec5 | 299 | case NL80211_IFTYPE_MESH_POINT: |
29cbe68c JB |
300 | sdata->vif.bss_conf.enable_beacon = |
301 | !!sdata->u.mesh.mesh_id_len; | |
2d0ddec5 | 302 | break; |
7659a193 | 303 | #endif |
2d0ddec5 JB |
304 | default: |
305 | /* not reached */ | |
306 | WARN_ON(1); | |
307 | break; | |
308 | } | |
309 | } | |
310 | } | |
311 | ||
12375ef9 | 312 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
313 | } |
314 | ||
f698d856 | 315 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 316 | { |
bda3933a JB |
317 | sdata->vif.bss_conf.use_cts_prot = false; |
318 | sdata->vif.bss_conf.use_short_preamble = false; | |
319 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
320 | return BSS_CHANGED_ERP_CTS_PROT | |
321 | BSS_CHANGED_ERP_PREAMBLE | | |
322 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
323 | } |
324 | ||
f0706e82 JB |
325 | static void ieee80211_tasklet_handler(unsigned long data) |
326 | { | |
327 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
328 | struct sk_buff *skb; | |
f0706e82 JB |
329 | |
330 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
331 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
332 | switch (skb->pkt_type) { | |
333 | case IEEE80211_RX_MSG: | |
51fb61e7 | 334 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
335 | * netstack. */ |
336 | skb->pkt_type = 0; | |
f1d58c25 | 337 | ieee80211_rx(local_to_hw(local), skb); |
f0706e82 JB |
338 | break; |
339 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 340 | skb->pkt_type = 0; |
e039fa4a | 341 | ieee80211_tx_status(local_to_hw(local), skb); |
f0706e82 | 342 | break; |
f4ea83dd | 343 | default: |
5e3f3089 LF |
344 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
345 | skb->pkt_type); | |
f0706e82 JB |
346 | dev_kfree_skb(skb); |
347 | break; | |
348 | } | |
349 | } | |
350 | } | |
351 | ||
f2753ddb JB |
352 | static void ieee80211_restart_work(struct work_struct *work) |
353 | { | |
354 | struct ieee80211_local *local = | |
355 | container_of(work, struct ieee80211_local, restart_work); | |
356 | ||
bc86863d SG |
357 | /* wait for scan work complete */ |
358 | flush_workqueue(local->workqueue); | |
359 | ||
360 | mutex_lock(&local->mtx); | |
79f460ca LC |
361 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || |
362 | local->sched_scanning, | |
bc86863d SG |
363 | "%s called with hardware scan in progress\n", __func__); |
364 | mutex_unlock(&local->mtx); | |
365 | ||
f2753ddb | 366 | rtnl_lock(); |
4136c422 | 367 | ieee80211_scan_cancel(local); |
f2753ddb JB |
368 | ieee80211_reconfig(local); |
369 | rtnl_unlock(); | |
370 | } | |
371 | ||
372 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
373 | { | |
374 | struct ieee80211_local *local = hw_to_local(hw); | |
375 | ||
b5878a2d JB |
376 | trace_api_restart_hw(local); |
377 | ||
b196d031 MB |
378 | wiphy_info(hw->wiphy, |
379 | "Hardware restart was requested\n"); | |
380 | ||
18145c69 | 381 | /* use this reason, ieee80211_reconfig will unblock it */ |
f2753ddb JB |
382 | ieee80211_stop_queues_by_reason(hw, |
383 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
384 | ||
385 | schedule_work(&local->restart_work); | |
386 | } | |
387 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
388 | ||
0f78231b JB |
389 | static void ieee80211_recalc_smps_work(struct work_struct *work) |
390 | { | |
391 | struct ieee80211_local *local = | |
392 | container_of(work, struct ieee80211_local, recalc_smps); | |
393 | ||
394 | mutex_lock(&local->iflist_mtx); | |
025e6be2 | 395 | ieee80211_recalc_smps(local); |
0f78231b JB |
396 | mutex_unlock(&local->iflist_mtx); |
397 | } | |
398 | ||
26b36cfe | 399 | #ifdef CONFIG_INET |
2b2c009e JO |
400 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
401 | unsigned long data, void *arg) | |
402 | { | |
403 | struct in_ifaddr *ifa = arg; | |
404 | struct ieee80211_local *local = | |
405 | container_of(nb, struct ieee80211_local, | |
406 | ifa_notifier); | |
407 | struct net_device *ndev = ifa->ifa_dev->dev; | |
408 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 409 | struct in_device *idev; |
2b2c009e | 410 | struct ieee80211_sub_if_data *sdata; |
68542962 | 411 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 412 | struct ieee80211_if_managed *ifmgd; |
68542962 | 413 | int c = 0; |
2b2c009e JO |
414 | |
415 | /* Make sure it's our interface that got changed */ | |
416 | if (!wdev) | |
417 | return NOTIFY_DONE; | |
418 | ||
419 | if (wdev->wiphy != local->hw.wiphy) | |
420 | return NOTIFY_DONE; | |
421 | ||
2b2c009e | 422 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 423 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e | 424 | |
26a58456 JB |
425 | if (!ieee80211_sdata_running(sdata)) |
426 | return NOTIFY_DONE; | |
427 | ||
2b2c009e JO |
428 | /* ARP filtering is only supported in managed mode */ |
429 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
430 | return NOTIFY_DONE; | |
431 | ||
95ae6b22 | 432 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
433 | if (!idev) |
434 | return NOTIFY_DONE; | |
435 | ||
2b2c009e JO |
436 | ifmgd = &sdata->u.mgd; |
437 | mutex_lock(&ifmgd->mtx); | |
68542962 JO |
438 | |
439 | /* Copy the addresses to the bss_conf list */ | |
440 | ifa = idev->ifa_list; | |
441 | while (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN && ifa) { | |
442 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
443 | ifa = ifa->ifa_next; | |
444 | c++; | |
445 | } | |
446 | ||
447 | /* If not all addresses fit the list, disable filtering */ | |
448 | if (ifa) { | |
449 | sdata->arp_filter_state = false; | |
450 | c = 0; | |
451 | } else { | |
452 | sdata->arp_filter_state = true; | |
453 | } | |
454 | bss_conf->arp_addr_cnt = c; | |
455 | ||
456 | /* Configure driver only if associated */ | |
457 | if (ifmgd->associated) { | |
458 | bss_conf->arp_filter_enabled = sdata->arp_filter_state; | |
459 | ieee80211_bss_info_change_notify(sdata, | |
460 | BSS_CHANGED_ARP_FILTER); | |
461 | } | |
462 | ||
2b2c009e JO |
463 | mutex_unlock(&ifmgd->mtx); |
464 | ||
465 | return NOTIFY_DONE; | |
466 | } | |
26b36cfe | 467 | #endif |
2b2c009e | 468 | |
4e6cbfd0 JL |
469 | static int ieee80211_napi_poll(struct napi_struct *napi, int budget) |
470 | { | |
471 | struct ieee80211_local *local = | |
472 | container_of(napi, struct ieee80211_local, napi); | |
473 | ||
474 | return local->ops->napi_poll(&local->hw, budget); | |
475 | } | |
476 | ||
477 | void ieee80211_napi_schedule(struct ieee80211_hw *hw) | |
478 | { | |
479 | struct ieee80211_local *local = hw_to_local(hw); | |
480 | ||
481 | napi_schedule(&local->napi); | |
482 | } | |
483 | EXPORT_SYMBOL(ieee80211_napi_schedule); | |
484 | ||
485 | void ieee80211_napi_complete(struct ieee80211_hw *hw) | |
486 | { | |
487 | struct ieee80211_local *local = hw_to_local(hw); | |
488 | ||
489 | napi_complete(&local->napi); | |
490 | } | |
491 | EXPORT_SYMBOL(ieee80211_napi_complete); | |
492 | ||
2e161f78 JB |
493 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
494 | static const struct ieee80211_txrx_stypes | |
495 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
496 | [NL80211_IFTYPE_ADHOC] = { | |
497 | .tx = 0xffff, | |
498 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4), | |
499 | }, | |
500 | [NL80211_IFTYPE_STATION] = { | |
501 | .tx = 0xffff, | |
502 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
503 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
504 | }, | |
505 | [NL80211_IFTYPE_AP] = { | |
506 | .tx = 0xffff, | |
507 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
508 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
509 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
510 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
511 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
512 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
513 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
514 | }, | |
515 | [NL80211_IFTYPE_AP_VLAN] = { | |
516 | /* copy AP */ | |
517 | .tx = 0xffff, | |
518 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
519 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
520 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
521 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
522 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
523 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
524 | BIT(IEEE80211_STYPE_ACTION >> 4), |
525 | }, | |
526 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
527 | .tx = 0xffff, | |
528 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
529 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
530 | }, | |
531 | [NL80211_IFTYPE_P2P_GO] = { | |
532 | .tx = 0xffff, | |
533 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
534 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
535 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
536 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
537 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
538 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
539 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
540 | }, | |
c7108a71 JC |
541 | [NL80211_IFTYPE_MESH_POINT] = { |
542 | .tx = 0xffff, | |
71839121 JC |
543 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
544 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
545 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 546 | }, |
2e161f78 JB |
547 | }; |
548 | ||
f0706e82 JB |
549 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
550 | const struct ieee80211_ops *ops) | |
551 | { | |
f0706e82 | 552 | struct ieee80211_local *local; |
96f5e66e | 553 | int priv_size, i; |
f0706e82 JB |
554 | struct wiphy *wiphy; |
555 | ||
556 | /* Ensure 32-byte alignment of our private data and hw private data. | |
557 | * We use the wiphy priv data for both our ieee80211_local and for | |
558 | * the driver's private data | |
559 | * | |
560 | * In memory it'll be like this: | |
561 | * | |
562 | * +-------------------------+ | |
563 | * | struct wiphy | | |
564 | * +-------------------------+ | |
565 | * | struct ieee80211_local | | |
566 | * +-------------------------+ | |
567 | * | driver's private data | | |
568 | * +-------------------------+ | |
569 | * | |
570 | */ | |
1ce8e7b5 | 571 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
572 | |
573 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
574 | ||
575 | if (!wiphy) | |
576 | return NULL; | |
577 | ||
2e161f78 JB |
578 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
579 | ||
207aba60 JB |
580 | wiphy->privid = mac80211_wiphy_privid; |
581 | ||
9bc383de JB |
582 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
583 | WIPHY_FLAG_4ADDR_AP | | |
f0dc7999 | 584 | WIPHY_FLAG_4ADDR_STATION; |
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 | ||
85a9994a LC |
655 | INIT_WORK(&local->sched_scan_stopped_work, |
656 | ieee80211_sched_scan_stopped_work); | |
657 | ||
f0706e82 JB |
658 | sta_info_init(local); |
659 | ||
a6a67db2 | 660 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 661 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
662 | atomic_set(&local->agg_queue_stop[i], 0); |
663 | } | |
f0706e82 JB |
664 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
665 | (unsigned long)local); | |
f0706e82 JB |
666 | |
667 | tasklet_init(&local->tasklet, | |
668 | ieee80211_tasklet_handler, | |
669 | (unsigned long) local); | |
f0706e82 JB |
670 | |
671 | skb_queue_head_init(&local->skb_queue); | |
672 | skb_queue_head_init(&local->skb_queue_unreliable); | |
673 | ||
4e6cbfd0 JL |
674 | /* init dummy netdev for use w/ NAPI */ |
675 | init_dummy_netdev(&local->napi_dev); | |
676 | ||
fe67c913 JB |
677 | ieee80211_led_names(local); |
678 | ||
21f83589 JB |
679 | ieee80211_hw_roc_setup(local); |
680 | ||
f0706e82 JB |
681 | return local_to_hw(local); |
682 | } | |
683 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
684 | ||
685 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
686 | { | |
687 | struct ieee80211_local *local = hw_to_local(hw); | |
7527a782 | 688 | int result, i; |
8318d78a | 689 | enum ieee80211_band band; |
be4a4b6a | 690 | int channels, max_bitrates; |
5ef2d41a | 691 | bool supp_ht; |
25e47c18 | 692 | static const u32 cipher_suites[] = { |
5daa8a8e | 693 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
694 | WLAN_CIPHER_SUITE_WEP40, |
695 | WLAN_CIPHER_SUITE_WEP104, | |
696 | WLAN_CIPHER_SUITE_TKIP, | |
697 | WLAN_CIPHER_SUITE_CCMP, | |
698 | ||
699 | /* keep last -- depends on hw flags! */ | |
700 | WLAN_CIPHER_SUITE_AES_CMAC | |
701 | }; | |
8318d78a | 702 | |
38bb3e9d LF |
703 | if ((hw->wiphy->wowlan.flags || hw->wiphy->wowlan.n_patterns) |
704 | #ifdef CONFIG_PM | |
705 | && (!local->ops->suspend || !local->ops->resume) | |
706 | #endif | |
707 | ) | |
eecc4800 JB |
708 | return -EINVAL; |
709 | ||
78be49ec HS |
710 | if (hw->max_report_rates == 0) |
711 | hw->max_report_rates = hw->max_rates; | |
712 | ||
8318d78a JB |
713 | /* |
714 | * generic code guarantees at least one band, | |
715 | * set this very early because much code assumes | |
716 | * that hw.conf.channel is assigned | |
717 | */ | |
2a519311 | 718 | channels = 0; |
de95a54b | 719 | max_bitrates = 0; |
5ef2d41a | 720 | supp_ht = false; |
8318d78a JB |
721 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
722 | struct ieee80211_supported_band *sband; | |
723 | ||
724 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
725 | if (!sband) |
726 | continue; | |
727 | if (!local->oper_channel) { | |
8318d78a JB |
728 | /* init channel we're on */ |
729 | local->hw.conf.channel = | |
58905ca5 JB |
730 | local->oper_channel = &sband->channels[0]; |
731 | local->hw.conf.channel_type = NL80211_CHAN_NO_HT; | |
8318d78a | 732 | } |
de95a54b JB |
733 | channels += sband->n_channels; |
734 | ||
735 | if (max_bitrates < sband->n_bitrates) | |
736 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 737 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
8318d78a | 738 | } |
f0706e82 | 739 | |
5ba63533 JB |
740 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
741 | sizeof(void *) * channels, GFP_KERNEL); | |
742 | if (!local->int_scan_req) | |
2a519311 JB |
743 | return -ENOMEM; |
744 | ||
f59ac048 | 745 | /* if low-level driver supports AP, we also support VLAN */ |
7527a782 JB |
746 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
747 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
748 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
749 | } | |
f59ac048 LR |
750 | |
751 | /* mac80211 always supports monitor */ | |
7527a782 JB |
752 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
753 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
754 | ||
8e621fc9 JB |
755 | /* |
756 | * mac80211 doesn't support more than 1 channel, and also not more | |
757 | * than one IBSS interface | |
758 | */ | |
759 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { | |
760 | const struct ieee80211_iface_combination *c; | |
761 | int j; | |
762 | ||
763 | c = &hw->wiphy->iface_combinations[i]; | |
764 | ||
765 | if (c->num_different_channels > 1) | |
7527a782 | 766 | return -EINVAL; |
f59ac048 | 767 | |
8e621fc9 JB |
768 | for (j = 0; j < c->n_limits; j++) |
769 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
770 | c->limits[j].max > 1) | |
771 | return -EINVAL; | |
772 | } | |
773 | ||
5eb5a52d JB |
774 | #ifndef CONFIG_MAC80211_MESH |
775 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
776 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
777 | #endif | |
778 | ||
1570ca59 JC |
779 | /* if the underlying driver supports mesh, mac80211 will (at least) |
780 | * provide routing of mesh authentication frames to userspace */ | |
781 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
782 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
783 | ||
a621fa4d JB |
784 | /* mac80211 supports control port protocol changing */ |
785 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
786 | ||
77965c97 JB |
787 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
788 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
789 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
790 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
791 | ||
ab13315a KV |
792 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
793 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
794 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
795 | ||
de95a54b JB |
796 | /* |
797 | * Calculate scan IE length -- we need this to alloc | |
798 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 799 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
800 | * information -- SSID is the driver's responsibility. |
801 | */ | |
dc9f48ce JM |
802 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
803 | 3 /* DS Params */; | |
5ef2d41a JB |
804 | if (supp_ht) |
805 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b JB |
806 | |
807 | if (!local->ops->hw_scan) { | |
808 | /* For hw_scan, driver needs to set these up. */ | |
809 | local->hw.wiphy->max_scan_ssids = 4; | |
810 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
811 | } | |
812 | ||
813 | /* | |
814 | * If the driver supports any scan IEs, then assume the | |
815 | * limit includes the IEs mac80211 will add, otherwise | |
816 | * leave it at zero and let the driver sort it out; we | |
817 | * still pass our IEs to the driver but userspace will | |
818 | * not be allowed to in that case. | |
819 | */ | |
820 | if (local->hw.wiphy->max_scan_ie_len) | |
821 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
822 | ||
3ffc2a90 JB |
823 | /* Set up cipher suites unless driver already did */ |
824 | if (!local->hw.wiphy->cipher_suites) { | |
825 | local->hw.wiphy->cipher_suites = cipher_suites; | |
826 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
827 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
828 | local->hw.wiphy->n_cipher_suites--; | |
829 | } | |
5daa8a8e | 830 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
831 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
832 | local->hw.wiphy->cipher_suites += 2; | |
833 | local->hw.wiphy->n_cipher_suites -= 2; | |
834 | } else { | |
835 | u32 *suites; | |
836 | int r, w = 0; | |
837 | ||
838 | /* Filter out WEP */ | |
839 | ||
840 | suites = kmemdup( | |
841 | local->hw.wiphy->cipher_suites, | |
842 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
843 | GFP_KERNEL); | |
844 | if (!suites) | |
845 | return -ENOMEM; | |
846 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { | |
847 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
848 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
849 | suite == WLAN_CIPHER_SUITE_WEP104) | |
850 | continue; | |
851 | suites[w++] = suite; | |
852 | } | |
853 | local->hw.wiphy->cipher_suites = suites; | |
854 | local->hw.wiphy->n_cipher_suites = w; | |
855 | local->wiphy_ciphers_allocated = true; | |
856 | } | |
5daa8a8e | 857 | } |
25e47c18 | 858 | |
21f83589 JB |
859 | if (!local->ops->remain_on_channel) |
860 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 861 | |
79f460ca LC |
862 | if (local->ops->sched_scan_start) |
863 | local->hw.wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
864 | ||
f0706e82 JB |
865 | result = wiphy_register(local->hw.wiphy); |
866 | if (result < 0) | |
2a519311 | 867 | goto fail_wiphy_register; |
f0706e82 | 868 | |
e2530083 JB |
869 | /* |
870 | * We use the number of queues for feature tests (QoS, HT) internally | |
871 | * so restrict them appropriately. | |
872 | */ | |
e2530083 JB |
873 | if (hw->queues > IEEE80211_MAX_QUEUES) |
874 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 875 | |
42935eca | 876 | local->workqueue = |
99b88a0e | 877 | alloc_ordered_workqueue(wiphy_name(local->hw.wiphy), 0); |
42935eca | 878 | if (!local->workqueue) { |
f0706e82 JB |
879 | result = -ENOMEM; |
880 | goto fail_workqueue; | |
881 | } | |
882 | ||
b306f453 JB |
883 | /* |
884 | * The hardware needs headroom for sending the frame, | |
885 | * and we need some headroom for passing the frame to monitor | |
886 | * interfaces, but never both at the same time. | |
887 | */ | |
40b275b6 | 888 | #ifndef __CHECKER__ |
d24deb25 GW |
889 | BUILD_BUG_ON(IEEE80211_TX_STATUS_HEADROOM != |
890 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
40b275b6 | 891 | #endif |
33ccad35 JB |
892 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
893 | sizeof(struct ieee80211_tx_status_rtap_hdr)); | |
b306f453 | 894 | |
e9f207f0 JB |
895 | debugfs_hw_add(local); |
896 | ||
b446918b HS |
897 | /* |
898 | * if the driver doesn't specify a max listen interval we | |
899 | * use 5 which should be a safe default | |
900 | */ | |
ea95bba4 | 901 | if (local->hw.max_listen_interval == 0) |
b446918b | 902 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
903 | |
904 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
905 | ||
ff616381 | 906 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 907 | |
d4c4a9a1 | 908 | result = ieee80211_wep_init(local); |
3473187d | 909 | if (result < 0) |
0fb9a9ec JP |
910 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
911 | result); | |
d4c4a9a1 | 912 | |
f0706e82 | 913 | rtnl_lock(); |
f0706e82 | 914 | |
830f9038 JB |
915 | result = ieee80211_init_rate_ctrl_alg(local, |
916 | hw->rate_control_algorithm); | |
f0706e82 | 917 | if (result < 0) { |
0fb9a9ec JP |
918 | wiphy_debug(local->hw.wiphy, |
919 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
920 | goto fail_rate; |
921 | } | |
922 | ||
8dffff21 JB |
923 | /* add one default STA interface if supported */ |
924 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
925 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
926 | NL80211_IFTYPE_STATION, NULL); | |
927 | if (result) | |
0fb9a9ec JP |
928 | wiphy_warn(local->hw.wiphy, |
929 | "Failed to add default virtual iface\n"); | |
8dffff21 | 930 | } |
f0706e82 | 931 | |
f0706e82 JB |
932 | rtnl_unlock(); |
933 | ||
934 | ieee80211_led_init(local); | |
935 | ||
10f644a4 JB |
936 | local->network_latency_notifier.notifier_call = |
937 | ieee80211_max_network_latency; | |
938 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
939 | &local->network_latency_notifier); | |
10f644a4 JB |
940 | if (result) { |
941 | rtnl_lock(); | |
942 | goto fail_pm_qos; | |
943 | } | |
944 | ||
26b36cfe | 945 | #ifdef CONFIG_INET |
2b2c009e JO |
946 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
947 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
948 | if (result) | |
949 | goto fail_ifa; | |
26b36cfe | 950 | #endif |
2b2c009e | 951 | |
4e6cbfd0 JL |
952 | netif_napi_add(&local->napi_dev, &local->napi, ieee80211_napi_poll, |
953 | local->hw.napi_weight); | |
954 | ||
f0706e82 JB |
955 | return 0; |
956 | ||
93c08c32 | 957 | #ifdef CONFIG_INET |
2b2c009e JO |
958 | fail_ifa: |
959 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
960 | &local->network_latency_notifier); | |
961 | rtnl_lock(); | |
93c08c32 | 962 | #endif |
10f644a4 JB |
963 | fail_pm_qos: |
964 | ieee80211_led_exit(local); | |
965 | ieee80211_remove_interfaces(local); | |
10f644a4 | 966 | fail_rate: |
f0706e82 | 967 | rtnl_unlock(); |
d4c4a9a1 | 968 | ieee80211_wep_free(local); |
f0706e82 | 969 | sta_info_stop(local); |
42935eca | 970 | destroy_workqueue(local->workqueue); |
10f644a4 | 971 | fail_workqueue: |
f0706e82 | 972 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 973 | fail_wiphy_register: |
3ffc2a90 JB |
974 | if (local->wiphy_ciphers_allocated) |
975 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 976 | kfree(local->int_scan_req); |
f0706e82 JB |
977 | return result; |
978 | } | |
979 | EXPORT_SYMBOL(ieee80211_register_hw); | |
980 | ||
f0706e82 JB |
981 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
982 | { | |
983 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
984 | |
985 | tasklet_kill(&local->tx_pending_tasklet); | |
986 | tasklet_kill(&local->tasklet); | |
987 | ||
10f644a4 JB |
988 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
989 | &local->network_latency_notifier); | |
26b36cfe | 990 | #ifdef CONFIG_INET |
2b2c009e | 991 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 992 | #endif |
10f644a4 | 993 | |
f0706e82 JB |
994 | rtnl_lock(); |
995 | ||
79010420 JB |
996 | /* |
997 | * At this point, interface list manipulations are fine | |
998 | * because the driver cannot be handing us frames any | |
999 | * more and the tasklet is killed. | |
1000 | */ | |
75636525 | 1001 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1002 | |
f0706e82 JB |
1003 | rtnl_unlock(); |
1004 | ||
071249b1 JB |
1005 | /* |
1006 | * Now all work items will be gone, but the | |
1007 | * timer might still be armed, so delete it | |
1008 | */ | |
1009 | del_timer_sync(&local->work_timer); | |
1010 | ||
258086a4 | 1011 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
1012 | cancel_work_sync(&local->reconfig_filter); |
1013 | ||
f0706e82 JB |
1014 | ieee80211_clear_tx_pending(local); |
1015 | sta_info_stop(local); | |
1016 | rate_control_deinitialize(local); | |
1017 | ||
f64f9e71 JP |
1018 | if (skb_queue_len(&local->skb_queue) || |
1019 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1020 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1021 | skb_queue_purge(&local->skb_queue); |
1022 | skb_queue_purge(&local->skb_queue_unreliable); | |
24a8fdad | 1023 | skb_queue_purge(&local->rx_skb_queue); |
f0706e82 | 1024 | |
42935eca | 1025 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
1026 | wiphy_unregister(local->hw.wiphy); |
1027 | ieee80211_wep_free(local); | |
1028 | ieee80211_led_exit(local); | |
5ba63533 | 1029 | kfree(local->int_scan_req); |
f0706e82 JB |
1030 | } |
1031 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1032 | ||
1033 | void ieee80211_free_hw(struct ieee80211_hw *hw) | |
1034 | { | |
1035 | struct ieee80211_local *local = hw_to_local(hw); | |
1036 | ||
c771c9d8 | 1037 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1038 | mutex_destroy(&local->mtx); |
c771c9d8 | 1039 | |
3ffc2a90 JB |
1040 | if (local->wiphy_ciphers_allocated) |
1041 | kfree(local->hw.wiphy->cipher_suites); | |
1042 | ||
f0706e82 JB |
1043 | wiphy_free(local->hw.wiphy); |
1044 | } | |
1045 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1046 | ||
f0706e82 JB |
1047 | static int __init ieee80211_init(void) |
1048 | { | |
1049 | struct sk_buff *skb; | |
1050 | int ret; | |
1051 | ||
e039fa4a JB |
1052 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1053 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1054 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1055 | |
cccf129f FF |
1056 | ret = rc80211_minstrel_init(); |
1057 | if (ret) | |
1058 | return ret; | |
1059 | ||
ec8aa669 FF |
1060 | ret = rc80211_minstrel_ht_init(); |
1061 | if (ret) | |
1062 | goto err_minstrel; | |
1063 | ||
4b475898 | 1064 | ret = rc80211_pid_init(); |
ad018375 | 1065 | if (ret) |
47846c9b | 1066 | goto err_pid; |
f0706e82 | 1067 | |
47846c9b JB |
1068 | ret = ieee80211_iface_init(); |
1069 | if (ret) | |
1070 | goto err_netdev; | |
e9f207f0 | 1071 | |
f0706e82 | 1072 | return 0; |
47846c9b JB |
1073 | err_netdev: |
1074 | rc80211_pid_exit(); | |
1075 | err_pid: | |
ec8aa669 FF |
1076 | rc80211_minstrel_ht_exit(); |
1077 | err_minstrel: | |
47846c9b JB |
1078 | rc80211_minstrel_exit(); |
1079 | ||
1080 | return ret; | |
f0706e82 JB |
1081 | } |
1082 | ||
f0706e82 JB |
1083 | static void __exit ieee80211_exit(void) |
1084 | { | |
4b475898 | 1085 | rc80211_pid_exit(); |
ec8aa669 | 1086 | rc80211_minstrel_ht_exit(); |
cccf129f | 1087 | rc80211_minstrel_exit(); |
ac71c691 | 1088 | |
f7a92144 LCC |
1089 | if (mesh_allocated) |
1090 | ieee80211s_stop(); | |
902acc78 | 1091 | |
47846c9b | 1092 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1093 | |
1094 | rcu_barrier(); | |
f0706e82 JB |
1095 | } |
1096 | ||
1097 | ||
ca9938fe | 1098 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1099 | module_exit(ieee80211_exit); |
1100 | ||
1101 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1102 | MODULE_LICENSE("GPL"); |