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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> | |
d98ad83e | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
41cbb0f5 | 6 | * Copyright (C) 2017 Intel Deutschland GmbH |
caf56338 | 7 | * Copyright (C) 2018 - 2019 Intel Corporation |
f0706e82 JB |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <net/mac80211.h> | |
f0706e82 JB |
15 | #include <linux/module.h> |
16 | #include <linux/init.h> | |
17 | #include <linux/netdevice.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/slab.h> | |
20 | #include <linux/skbuff.h> | |
21 | #include <linux/etherdevice.h> | |
22 | #include <linux/if_arp.h> | |
f0706e82 | 23 | #include <linux/rtnetlink.h> |
f0706e82 | 24 | #include <linux/bitmap.h> |
68542962 | 25 | #include <linux/inetdevice.h> |
881d966b | 26 | #include <net/net_namespace.h> |
f0706e82 | 27 | #include <net/cfg80211.h> |
a65240c1 | 28 | #include <net/addrconf.h> |
f0706e82 | 29 | |
f0706e82 | 30 | #include "ieee80211_i.h" |
24487981 | 31 | #include "driver-ops.h" |
2c8dccc7 | 32 | #include "rate.h" |
f7a92144 | 33 | #include "mesh.h" |
f0706e82 | 34 | #include "wep.h" |
2c8dccc7 | 35 | #include "led.h" |
e9f207f0 | 36 | #include "debugfs.h" |
f0706e82 | 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_allmultis)) |
4150c572 JB |
45 | new_flags |= FIF_ALLMULTI; |
46 | ||
8a690674 BG |
47 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
48 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) | |
8cc9a739 MW |
49 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
50 | ||
7be5086d JB |
51 | if (local->fif_probe_req || local->probe_req_reg) |
52 | new_flags |= FIF_PROBE_REQ; | |
53 | ||
8cc9a739 MW |
54 | if (local->fif_fcsfail) |
55 | new_flags |= FIF_FCSFAIL; | |
56 | ||
57 | if (local->fif_plcpfail) | |
58 | new_flags |= FIF_PLCPFAIL; | |
59 | ||
60 | if (local->fif_control) | |
61 | new_flags |= FIF_CONTROL; | |
62 | ||
63 | if (local->fif_other_bss) | |
64 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 65 | |
e3b90ca2 IP |
66 | if (local->fif_pspoll) |
67 | new_flags |= FIF_PSPOLL; | |
68 | ||
3ac64bee | 69 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
70 | changed_flags = local->filter_flags ^ new_flags; |
71 | ||
22bedad3 | 72 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
73 | spin_unlock_bh(&local->filter_lock); |
74 | ||
4150c572 JB |
75 | /* be a bit nasty */ |
76 | new_flags |= (1<<31); | |
77 | ||
3ac64bee | 78 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
79 | |
80 | WARN_ON(new_flags & (1<<31)); | |
81 | ||
82 | local->filter_flags = new_flags & ~(1<<31); | |
83 | } | |
84 | ||
3ac64bee JB |
85 | static void ieee80211_reconfig_filter(struct work_struct *work) |
86 | { | |
87 | struct ieee80211_local *local = | |
88 | container_of(work, struct ieee80211_local, reconfig_filter); | |
89 | ||
90 | ieee80211_configure_filter(local); | |
91 | } | |
92 | ||
55de908a | 93 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
b2c258fb | 94 | { |
1ea6f9c0 | 95 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 96 | struct cfg80211_chan_def chandef = {}; |
55de908a | 97 | u32 changed = 0; |
e8975581 | 98 | int power; |
ffd2778b | 99 | u32 offchannel_flag; |
f0706e82 | 100 | |
ffd2778b | 101 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 102 | |
7ca15a0a SW |
103 | if (local->scan_chandef.chan) { |
104 | chandef = local->scan_chandef; | |
b23b025f | 105 | } else if (local->tmp_channel) { |
675a0b04 KB |
106 | chandef.chan = local->tmp_channel; |
107 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
108 | chandef.center_freq1 = chandef.chan->center_freq; | |
109 | } else | |
110 | chandef = local->_oper_chandef; | |
111 | ||
112 | WARN(!cfg80211_chandef_valid(&chandef), | |
113 | "control:%d MHz width:%d center: %d/%d MHz", | |
114 | chandef.chan->center_freq, chandef.width, | |
115 | chandef.center_freq1, chandef.center_freq2); | |
116 | ||
117 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) | |
b23b025f BG |
118 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
119 | else | |
120 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
121 | ||
ffd2778b | 122 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 123 | |
675a0b04 KB |
124 | if (offchannel_flag || |
125 | !cfg80211_chandef_identical(&local->hw.conf.chandef, | |
126 | &local->_oper_chandef)) { | |
127 | local->hw.conf.chandef = chandef; | |
e8975581 JB |
128 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
129 | } | |
8318d78a | 130 | |
0f78231b JB |
131 | if (!conf_is_ht(&local->hw.conf)) { |
132 | /* | |
133 | * mac80211.h documents that this is only valid | |
134 | * when the channel is set to an HT type, and | |
135 | * that otherwise STATIC is used. | |
136 | */ | |
137 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
138 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
139 | local->hw.conf.smps_mode = local->smps_mode; | |
140 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
141 | } | |
142 | ||
0430c883 | 143 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 144 | |
1ea6f9c0 JB |
145 | rcu_read_lock(); |
146 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
147 | if (!rcu_access_pointer(sdata->vif.chanctx_conf)) | |
148 | continue; | |
764152ff FF |
149 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
150 | continue; | |
1ea6f9c0 JB |
151 | power = min(power, sdata->vif.bss_conf.txpower); |
152 | } | |
153 | rcu_read_unlock(); | |
a8302de9 | 154 | |
e8975581 JB |
155 | if (local->hw.conf.power_level != power) { |
156 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
157 | local->hw.conf.power_level = power; | |
158 | } | |
b2c258fb | 159 | |
55de908a JB |
160 | return changed; |
161 | } | |
162 | ||
163 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) | |
164 | { | |
165 | int ret = 0; | |
166 | ||
167 | might_sleep(); | |
168 | ||
169 | if (!local->use_chanctx) | |
170 | changed |= ieee80211_hw_conf_chan(local); | |
171 | else | |
172 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | | |
173 | IEEE80211_CONF_CHANGE_POWER); | |
174 | ||
e8975581 | 175 | if (changed && local->open_count) { |
24487981 | 176 | ret = drv_config(local, changed); |
d73782fd | 177 | /* |
447107fb | 178 | * Goal: |
d73782fd JB |
179 | * HW reconfiguration should never fail, the driver has told |
180 | * us what it can support so it should live up to that promise. | |
447107fb RC |
181 | * |
182 | * Current status: | |
183 | * rfkill is not integrated with mac80211 and a | |
184 | * configuration command can thus fail if hardware rfkill | |
185 | * is enabled | |
186 | * | |
187 | * FIXME: integrate rfkill with mac80211 and then add this | |
188 | * WARN_ON() back | |
189 | * | |
d73782fd | 190 | */ |
447107fb | 191 | /* WARN_ON(ret); */ |
d73782fd | 192 | } |
f0706e82 | 193 | |
b2c258fb JB |
194 | return ret; |
195 | } | |
f0706e82 | 196 | |
471b3efd JB |
197 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
198 | u32 changed) | |
d9430a32 | 199 | { |
471b3efd JB |
200 | struct ieee80211_local *local = sdata->local; |
201 | ||
990baec0 | 202 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
471b3efd JB |
203 | return; |
204 | ||
12375ef9 | 205 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
206 | } |
207 | ||
f698d856 | 208 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 209 | { |
bda3933a JB |
210 | sdata->vif.bss_conf.use_cts_prot = false; |
211 | sdata->vif.bss_conf.use_short_preamble = false; | |
212 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
213 | return BSS_CHANGED_ERP_CTS_PROT | |
214 | BSS_CHANGED_ERP_PREAMBLE | | |
215 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
216 | } |
217 | ||
f0706e82 JB |
218 | static void ieee80211_tasklet_handler(unsigned long data) |
219 | { | |
220 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
221 | struct sk_buff *skb; | |
f0706e82 JB |
222 | |
223 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
224 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
225 | switch (skb->pkt_type) { | |
226 | case IEEE80211_RX_MSG: | |
51fb61e7 | 227 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
228 | * netstack. */ |
229 | skb->pkt_type = 0; | |
005e472b | 230 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
231 | break; |
232 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 233 | skb->pkt_type = 0; |
005e472b | 234 | ieee80211_tx_status(&local->hw, skb); |
f0706e82 | 235 | break; |
f4ea83dd | 236 | default: |
5e3f3089 LF |
237 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
238 | skb->pkt_type); | |
f0706e82 JB |
239 | dev_kfree_skb(skb); |
240 | break; | |
241 | } | |
242 | } | |
243 | } | |
244 | ||
f2753ddb JB |
245 | static void ieee80211_restart_work(struct work_struct *work) |
246 | { | |
247 | struct ieee80211_local *local = | |
248 | container_of(work, struct ieee80211_local, restart_work); | |
ab499db8 | 249 | struct ieee80211_sub_if_data *sdata; |
f2753ddb | 250 | |
bc86863d SG |
251 | /* wait for scan work complete */ |
252 | flush_workqueue(local->workqueue); | |
2bc533bd | 253 | flush_work(&local->sched_scan_stopped_work); |
bc86863d | 254 | |
d43c6b6e DS |
255 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
256 | "%s called with hardware scan in progress\n", __func__); | |
bc86863d | 257 | |
4a199068 | 258 | flush_work(&local->radar_detected_work); |
f2753ddb | 259 | rtnl_lock(); |
f3ffb6c3 EG |
260 | list_for_each_entry(sdata, &local->interfaces, list) { |
261 | /* | |
262 | * XXX: there may be more work for other vif types and even | |
263 | * for station mode: a good thing would be to run most of | |
264 | * the iface type's dependent _stop (ieee80211_mg_stop, | |
265 | * ieee80211_ibss_stop) etc... | |
266 | * For now, fix only the specific bug that was seen: race | |
267 | * between csa_connection_drop_work and us. | |
268 | */ | |
269 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { | |
270 | /* | |
271 | * This worker is scheduled from the iface worker that | |
272 | * runs on mac80211's workqueue, so we can't be | |
273 | * scheduling this worker after the cancel right here. | |
274 | * The exception is ieee80211_chswitch_done. | |
275 | * Then we can have a race... | |
276 | */ | |
277 | cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work); | |
278 | } | |
ab499db8 | 279 | flush_delayed_work(&sdata->dec_tailroom_needed_wk); |
f3ffb6c3 | 280 | } |
4136c422 | 281 | ieee80211_scan_cancel(local); |
470f4d61 EP |
282 | |
283 | /* make sure any new ROC will consider local->in_reconfig */ | |
284 | flush_delayed_work(&local->roc_work); | |
285 | flush_work(&local->hw_roc_done); | |
286 | ||
2316380f SS |
287 | /* wait for all packet processing to be done */ |
288 | synchronize_net(); | |
289 | ||
f2753ddb JB |
290 | ieee80211_reconfig(local); |
291 | rtnl_unlock(); | |
292 | } | |
293 | ||
294 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
295 | { | |
296 | struct ieee80211_local *local = hw_to_local(hw); | |
297 | ||
b5878a2d JB |
298 | trace_api_restart_hw(local); |
299 | ||
b196d031 MB |
300 | wiphy_info(hw->wiphy, |
301 | "Hardware restart was requested\n"); | |
302 | ||
18145c69 | 303 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 | 304 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
305 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
306 | false); | |
f2753ddb | 307 | |
04800ada AN |
308 | /* |
309 | * Stop all Rx during the reconfig. We don't want state changes | |
310 | * or driver callbacks while this is in progress. | |
311 | */ | |
312 | local->in_reconfig = true; | |
313 | barrier(); | |
314 | ||
43d6df00 | 315 | queue_work(system_freezable_wq, &local->restart_work); |
f2753ddb JB |
316 | } |
317 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
318 | ||
26b36cfe | 319 | #ifdef CONFIG_INET |
2b2c009e JO |
320 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
321 | unsigned long data, void *arg) | |
322 | { | |
323 | struct in_ifaddr *ifa = arg; | |
324 | struct ieee80211_local *local = | |
325 | container_of(nb, struct ieee80211_local, | |
326 | ifa_notifier); | |
327 | struct net_device *ndev = ifa->ifa_dev->dev; | |
328 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 329 | struct in_device *idev; |
2b2c009e | 330 | struct ieee80211_sub_if_data *sdata; |
68542962 | 331 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 332 | struct ieee80211_if_managed *ifmgd; |
68542962 | 333 | int c = 0; |
2b2c009e JO |
334 | |
335 | /* Make sure it's our interface that got changed */ | |
336 | if (!wdev) | |
337 | return NOTIFY_DONE; | |
338 | ||
339 | if (wdev->wiphy != local->hw.wiphy) | |
340 | return NOTIFY_DONE; | |
341 | ||
2b2c009e | 342 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 343 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e JO |
344 | |
345 | /* ARP filtering is only supported in managed mode */ | |
346 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
347 | return NOTIFY_DONE; | |
348 | ||
95ae6b22 | 349 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
350 | if (!idev) |
351 | return NOTIFY_DONE; | |
352 | ||
2b2c009e | 353 | ifmgd = &sdata->u.mgd; |
8d61ffa5 | 354 | sdata_lock(sdata); |
68542962 JO |
355 | |
356 | /* Copy the addresses to the bss_conf list */ | |
357 | ifa = idev->ifa_list; | |
0f19b41e JB |
358 | while (ifa) { |
359 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
360 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
68542962 JO |
361 | ifa = ifa->ifa_next; |
362 | c++; | |
363 | } | |
364 | ||
68542962 JO |
365 | bss_conf->arp_addr_cnt = c; |
366 | ||
53d69c39 | 367 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 368 | if (ifmgd->associated) |
68542962 JO |
369 | ieee80211_bss_info_change_notify(sdata, |
370 | BSS_CHANGED_ARP_FILTER); | |
68542962 | 371 | |
8d61ffa5 | 372 | sdata_unlock(sdata); |
2b2c009e | 373 | |
8bd811aa | 374 | return NOTIFY_OK; |
2b2c009e | 375 | } |
26b36cfe | 376 | #endif |
2b2c009e | 377 | |
a65240c1 JB |
378 | #if IS_ENABLED(CONFIG_IPV6) |
379 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
380 | unsigned long data, void *arg) | |
381 | { | |
382 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
383 | struct inet6_dev *idev = ifa->idev; | |
384 | struct net_device *ndev = ifa->idev->dev; | |
385 | struct ieee80211_local *local = | |
386 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
387 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
388 | struct ieee80211_sub_if_data *sdata; | |
389 | ||
390 | /* Make sure it's our interface that got changed */ | |
391 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
392 | return NOTIFY_DONE; | |
393 | ||
394 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
395 | ||
396 | /* | |
397 | * For now only support station mode. This is mostly because | |
398 | * doing AP would have to handle AP_VLAN in some way ... | |
399 | */ | |
400 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
401 | return NOTIFY_DONE; | |
402 | ||
403 | drv_ipv6_addr_change(local, sdata, idev); | |
404 | ||
8bd811aa | 405 | return NOTIFY_OK; |
a65240c1 JB |
406 | } |
407 | #endif | |
408 | ||
2e161f78 JB |
409 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
410 | static const struct ieee80211_txrx_stypes | |
411 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
412 | [NL80211_IFTYPE_ADHOC] = { | |
413 | .tx = 0xffff, | |
3bfda62c WH |
414 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
415 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
416 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
417 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
418 | }, |
419 | [NL80211_IFTYPE_STATION] = { | |
420 | .tx = 0xffff, | |
421 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
422 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
423 | }, | |
424 | [NL80211_IFTYPE_AP] = { | |
425 | .tx = 0xffff, | |
426 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
427 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
428 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
429 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
430 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
431 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
432 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
433 | }, | |
434 | [NL80211_IFTYPE_AP_VLAN] = { | |
435 | /* copy AP */ | |
436 | .tx = 0xffff, | |
437 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
438 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
439 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
440 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
441 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
442 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
443 | BIT(IEEE80211_STYPE_ACTION >> 4), |
444 | }, | |
445 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
446 | .tx = 0xffff, | |
447 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
448 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
449 | }, | |
450 | [NL80211_IFTYPE_P2P_GO] = { | |
451 | .tx = 0xffff, | |
452 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
453 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
454 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
455 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
456 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
457 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
458 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
459 | }, | |
c7108a71 JC |
460 | [NL80211_IFTYPE_MESH_POINT] = { |
461 | .tx = 0xffff, | |
71839121 JC |
462 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
463 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
464 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 465 | }, |
f142c6b9 JB |
466 | [NL80211_IFTYPE_P2P_DEVICE] = { |
467 | .tx = 0xffff, | |
468 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
469 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
470 | }, | |
2e161f78 JB |
471 | }; |
472 | ||
ef96a842 BG |
473 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
474 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
475 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
476 | ||
477 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
478 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 479 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 480 | IEEE80211_HT_CAP_SGI_40 | |
d9bb4108 SM |
481 | IEEE80211_HT_CAP_TX_STBC | |
482 | IEEE80211_HT_CAP_RX_STBC | | |
9a07bf50 JM |
483 | IEEE80211_HT_CAP_LDPC_CODING | |
484 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
485 | .mcs = { |
486 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
487 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
488 | }, | |
489 | }; | |
490 | ||
dd5ecfea JB |
491 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
492 | .vht_cap_info = | |
493 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
494 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
495 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
67d1ba8a | 496 | IEEE80211_VHT_CAP_RXSTBC_MASK | |
dd5ecfea JB |
497 | IEEE80211_VHT_CAP_TXSTBC | |
498 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
499 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
500 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
501 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
502 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
503 | .supp_mcs = { | |
504 | .rx_mcs_map = cpu_to_le16(~0), | |
505 | .tx_mcs_map = cpu_to_le16(~0), | |
506 | }, | |
507 | }; | |
508 | ||
ad28757e BG |
509 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
510 | const struct ieee80211_ops *ops, | |
511 | const char *requested_name) | |
f0706e82 | 512 | { |
f0706e82 | 513 | struct ieee80211_local *local; |
96f5e66e | 514 | int priv_size, i; |
f0706e82 | 515 | struct wiphy *wiphy; |
fe57d9f5 | 516 | bool use_chanctx; |
f0706e82 | 517 | |
c0af0734 JB |
518 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
519 | !ops->add_interface || !ops->remove_interface || | |
520 | !ops->configure_filter)) | |
521 | return NULL; | |
522 | ||
f09603a2 JB |
523 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
524 | return NULL; | |
525 | ||
e269d860 JB |
526 | /* check all or no channel context operations exist */ |
527 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
528 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
529 | !!ops->unassign_vif_chanctx; | |
530 | if (WARN_ON(i != 0 && i != 5)) | |
531 | return NULL; | |
fe57d9f5 | 532 | use_chanctx = i == 5; |
e269d860 | 533 | |
f0706e82 JB |
534 | /* Ensure 32-byte alignment of our private data and hw private data. |
535 | * We use the wiphy priv data for both our ieee80211_local and for | |
536 | * the driver's private data | |
537 | * | |
538 | * In memory it'll be like this: | |
539 | * | |
540 | * +-------------------------+ | |
541 | * | struct wiphy | | |
542 | * +-------------------------+ | |
543 | * | struct ieee80211_local | | |
544 | * +-------------------------+ | |
545 | * | driver's private data | | |
546 | * +-------------------------+ | |
547 | * | |
548 | */ | |
1ce8e7b5 | 549 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 550 | |
ad28757e | 551 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
552 | |
553 | if (!wiphy) | |
554 | return NULL; | |
555 | ||
2e161f78 JB |
556 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
557 | ||
207aba60 JB |
558 | wiphy->privid = mac80211_wiphy_privid; |
559 | ||
9bc383de JB |
560 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
561 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 562 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 563 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
564 | WIPHY_FLAG_OFFCHAN_TX; |
565 | ||
566 | if (ops->remain_on_channel) | |
567 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; | |
207aba60 | 568 | |
b292219f JB |
569 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
570 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 571 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 572 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 573 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
574 | NL80211_FEATURE_USERSPACE_MPM | |
575 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
f3ca52aa | 576 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_FILS_STA); |
018f6fbf DK |
577 | wiphy_ext_feature_set(wiphy, |
578 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211); | |
a729cff8 | 579 | |
b9771d41 | 580 | if (!ops->hw_scan) { |
5c95b940 AQ |
581 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
582 | NL80211_FEATURE_AP_SCAN; | |
b9771d41 JB |
583 | /* |
584 | * if the driver behaves correctly using the probe request | |
585 | * (template) from mac80211, then both of these should be | |
586 | * supported even with hw scan - but let drivers opt in. | |
587 | */ | |
588 | wiphy_ext_feature_set(wiphy, | |
589 | NL80211_EXT_FEATURE_SCAN_RANDOM_SN); | |
590 | wiphy_ext_feature_set(wiphy, | |
591 | NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); | |
592 | } | |
cd2bb512 | 593 | |
207aba60 JB |
594 | if (!ops->set_key) |
595 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 596 | |
2fe4a29a THJ |
597 | if (ops->wake_tx_queue) |
598 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_TXQS); | |
599 | ||
f278ce4f EG |
600 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_RRM); |
601 | ||
0c1ad2ca | 602 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
603 | |
604 | local = wiphy_priv(wiphy); | |
de95a54b | 605 | |
7bedd0cf JB |
606 | if (sta_info_init(local)) |
607 | goto err_free; | |
608 | ||
f0706e82 JB |
609 | local->hw.wiphy = wiphy; |
610 | ||
1ce8e7b5 | 611 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
612 | |
613 | local->ops = ops; | |
fe57d9f5 | 614 | local->use_chanctx = use_chanctx; |
f0706e82 | 615 | |
70e53669 WG |
616 | /* |
617 | * We need a bit of data queued to build aggregates properly, so | |
618 | * instruct the TCP stack to allow more than a single ms of data | |
619 | * to be queued in the stack. The value is a bit-shift of 1 | |
5c14a4d0 | 620 | * second, so 7 is ~8ms of queued data. Only affects local TCP |
70e53669 WG |
621 | * sockets. |
622 | * This is the default, anyhow - drivers may need to override it | |
623 | * for local reasons (longer buffers, longer completion time, or | |
624 | * similar). | |
625 | */ | |
5c14a4d0 | 626 | local->hw.tx_sk_pacing_shift = 7; |
70e53669 | 627 | |
e6a9854b JB |
628 | /* set up some defaults */ |
629 | local->hw.queues = 1; | |
630 | local->hw.max_rates = 1; | |
78be49ec | 631 | local->hw.max_report_rates = 0; |
b8042b3d JB |
632 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; |
633 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; | |
3a25a8c8 | 634 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
635 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
636 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
637 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
638 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
639 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
640 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
641 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
642 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
643 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
1ea6f9c0 | 644 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 645 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 646 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 647 | |
e9a21949 LC |
648 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
649 | ||
650 | wiphy->extended_capabilities = local->ext_capa; | |
651 | wiphy->extended_capabilities_mask = local->ext_capa; | |
652 | wiphy->extended_capabilities_len = | |
653 | ARRAY_SIZE(local->ext_capa); | |
654 | ||
79010420 | 655 | INIT_LIST_HEAD(&local->interfaces); |
f64331d5 | 656 | INIT_LIST_HEAD(&local->mon_list); |
2f787b0b YH |
657 | |
658 | __hw_addr_init(&local->mc_list); | |
659 | ||
c771c9d8 | 660 | mutex_init(&local->iflist_mtx); |
a1699b75 | 661 | mutex_init(&local->mtx); |
f0706e82 | 662 | |
ad0e2b5a | 663 | mutex_init(&local->key_mtx); |
3b8d81e0 | 664 | spin_lock_init(&local->filter_lock); |
f9e124fb | 665 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
666 | spin_lock_init(&local->queue_stop_reason_lock); |
667 | ||
18667600 THJ |
668 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
669 | INIT_LIST_HEAD(&local->active_txqs[i]); | |
670 | spin_lock_init(&local->active_txq_lock[i]); | |
671 | } | |
b4809e94 | 672 | local->airtime_flags = AIRTIME_USE_TX | AIRTIME_USE_RX; |
18667600 | 673 | |
d01a1e65 MK |
674 | INIT_LIST_HEAD(&local->chanctx_list); |
675 | mutex_init(&local->chanctx_mtx); | |
676 | ||
c2b13452 | 677 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 678 | |
f2753ddb JB |
679 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
680 | ||
164eb02d SW |
681 | INIT_WORK(&local->radar_detected_work, |
682 | ieee80211_dfs_radar_detected_work); | |
683 | ||
3ac64bee | 684 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 685 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 686 | |
520eb820 KV |
687 | INIT_WORK(&local->dynamic_ps_enable_work, |
688 | ieee80211_dynamic_ps_enable_work); | |
689 | INIT_WORK(&local->dynamic_ps_disable_work, | |
690 | ieee80211_dynamic_ps_disable_work); | |
34f11cd3 | 691 | timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); |
520eb820 | 692 | |
85a9994a LC |
693 | INIT_WORK(&local->sched_scan_stopped_work, |
694 | ieee80211_sched_scan_stopped_work); | |
695 | ||
c8ff71e6 AN |
696 | INIT_WORK(&local->tdls_chsw_work, ieee80211_tdls_chsw_work); |
697 | ||
a729cff8 JB |
698 | spin_lock_init(&local->ack_status_lock); |
699 | idr_init(&local->ack_status_frames); | |
a729cff8 | 700 | |
a6a67db2 | 701 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 702 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
703 | atomic_set(&local->agg_queue_stop[i], 0); |
704 | } | |
f0706e82 JB |
705 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
706 | (unsigned long)local); | |
f0706e82 | 707 | |
21a5d4c3 MP |
708 | if (ops->wake_tx_queue) |
709 | tasklet_init(&local->wake_txqs_tasklet, ieee80211_wake_txqs, | |
710 | (unsigned long)local); | |
711 | ||
f0706e82 JB |
712 | tasklet_init(&local->tasklet, |
713 | ieee80211_tasklet_handler, | |
714 | (unsigned long) local); | |
f0706e82 JB |
715 | |
716 | skb_queue_head_init(&local->skb_queue); | |
717 | skb_queue_head_init(&local->skb_queue_unreliable); | |
c8ff71e6 | 718 | skb_queue_head_init(&local->skb_queue_tdls_chsw); |
f0706e82 | 719 | |
8d5c2585 | 720 | ieee80211_alloc_led_names(local); |
fe67c913 | 721 | |
2eb278e0 | 722 | ieee80211_roc_setup(local); |
21f83589 | 723 | |
99ee7cae JB |
724 | local->hw.radiotap_timestamp.units_pos = -1; |
725 | local->hw.radiotap_timestamp.accuracy = -1; | |
726 | ||
005e472b | 727 | return &local->hw; |
7bedd0cf JB |
728 | err_free: |
729 | wiphy_free(wiphy); | |
730 | return NULL; | |
f0706e82 | 731 | } |
ad28757e | 732 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 733 | |
2475b1cc | 734 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 735 | { |
2475b1cc MS |
736 | bool have_wep = !(IS_ERR(local->wep_tx_tfm) || |
737 | IS_ERR(local->wep_rx_tfm)); | |
30686bf7 | 738 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
2475b1cc MS |
739 | int n_suites = 0, r = 0, w = 0; |
740 | u32 *suites; | |
25e47c18 | 741 | static const u32 cipher_suites[] = { |
5daa8a8e | 742 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
743 | WLAN_CIPHER_SUITE_WEP40, |
744 | WLAN_CIPHER_SUITE_WEP104, | |
745 | WLAN_CIPHER_SUITE_TKIP, | |
746 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 747 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
748 | WLAN_CIPHER_SUITE_GCMP, |
749 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
750 | |
751 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
752 | WLAN_CIPHER_SUITE_AES_CMAC, |
753 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
754 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
755 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 756 | }; |
8318d78a | 757 | |
30686bf7 | 758 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
759 | local->hw.wiphy->cipher_suites) { |
760 | /* If the driver advertises, or doesn't support SW crypto, | |
761 | * we only need to remove WEP if necessary. | |
762 | */ | |
763 | if (have_wep) | |
764 | return 0; | |
765 | ||
766 | /* well if it has _no_ ciphers ... fine */ | |
767 | if (!local->hw.wiphy->n_cipher_suites) | |
768 | return 0; | |
769 | ||
770 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
771 | suites = kmemdup(local->hw.wiphy->cipher_suites, | |
772 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
773 | GFP_KERNEL); | |
774 | if (!suites) | |
775 | return -ENOMEM; | |
2475b1cc | 776 | |
fa7e1fbc JB |
777 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
778 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
779 | ||
780 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
781 | suite == WLAN_CIPHER_SUITE_WEP104) | |
782 | continue; | |
783 | suites[w++] = suite; | |
784 | } | |
785 | } else if (!local->hw.cipher_schemes) { | |
786 | /* If the driver doesn't have cipher schemes, there's nothing | |
787 | * else to do other than assign the (software supported and | |
788 | * perhaps offloaded) cipher suites. | |
789 | */ | |
2475b1cc MS |
790 | local->hw.wiphy->cipher_suites = cipher_suites; |
791 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
792 | ||
793 | if (!have_mfp) | |
8ade538b | 794 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
795 | |
796 | if (!have_wep) { | |
797 | local->hw.wiphy->cipher_suites += 2; | |
798 | local->hw.wiphy->n_cipher_suites -= 2; | |
799 | } | |
800 | ||
fa7e1fbc | 801 | /* not dynamically allocated, so just return */ |
2475b1cc | 802 | return 0; |
fa7e1fbc JB |
803 | } else { |
804 | const struct ieee80211_cipher_scheme *cs; | |
2475b1cc | 805 | |
fa7e1fbc JB |
806 | cs = local->hw.cipher_schemes; |
807 | ||
808 | /* Driver specifies cipher schemes only (but not cipher suites | |
809 | * including the schemes) | |
810 | * | |
00b9cfa3 | 811 | * We start counting ciphers defined by schemes, TKIP, CCMP, |
2b2ba0db | 812 | * CCMP-256, GCMP, and GCMP-256 |
2475b1cc | 813 | */ |
2b2ba0db | 814 | n_suites = local->hw.n_cipher_schemes + 5; |
2475b1cc MS |
815 | |
816 | /* check if we have WEP40 and WEP104 */ | |
817 | if (have_wep) | |
818 | n_suites += 2; | |
819 | ||
8ade538b JM |
820 | /* check if we have AES_CMAC, BIP-CMAC-256, BIP-GMAC-128, |
821 | * BIP-GMAC-256 | |
822 | */ | |
2475b1cc | 823 | if (have_mfp) |
8ade538b | 824 | n_suites += 4; |
2475b1cc | 825 | |
6da2ec56 | 826 | suites = kmalloc_array(n_suites, sizeof(u32), GFP_KERNEL); |
2475b1cc MS |
827 | if (!suites) |
828 | return -ENOMEM; | |
829 | ||
830 | suites[w++] = WLAN_CIPHER_SUITE_CCMP; | |
2b2ba0db | 831 | suites[w++] = WLAN_CIPHER_SUITE_CCMP_256; |
2475b1cc | 832 | suites[w++] = WLAN_CIPHER_SUITE_TKIP; |
00b9cfa3 JM |
833 | suites[w++] = WLAN_CIPHER_SUITE_GCMP; |
834 | suites[w++] = WLAN_CIPHER_SUITE_GCMP_256; | |
2475b1cc MS |
835 | |
836 | if (have_wep) { | |
837 | suites[w++] = WLAN_CIPHER_SUITE_WEP40; | |
838 | suites[w++] = WLAN_CIPHER_SUITE_WEP104; | |
839 | } | |
840 | ||
56c52da2 | 841 | if (have_mfp) { |
2475b1cc | 842 | suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC; |
56c52da2 | 843 | suites[w++] = WLAN_CIPHER_SUITE_BIP_CMAC_256; |
8ade538b JM |
844 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_128; |
845 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
56c52da2 | 846 | } |
2475b1cc | 847 | |
e3a55b53 | 848 | for (r = 0; r < local->hw.n_cipher_schemes; r++) { |
2475b1cc | 849 | suites[w++] = cs[r].cipher; |
94c78cb4 JB |
850 | if (WARN_ON(cs[r].pn_len > IEEE80211_MAX_PN_LEN)) { |
851 | kfree(suites); | |
e3a55b53 | 852 | return -EINVAL; |
94c78cb4 | 853 | } |
e3a55b53 | 854 | } |
2475b1cc MS |
855 | } |
856 | ||
857 | local->hw.wiphy->cipher_suites = suites; | |
858 | local->hw.wiphy->n_cipher_suites = w; | |
859 | local->wiphy_ciphers_allocated = true; | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
865 | { | |
866 | struct ieee80211_local *local = hw_to_local(hw); | |
867 | int result, i; | |
57fbcce3 | 868 | enum nl80211_band band; |
2475b1cc | 869 | int channels, max_bitrates; |
41cbb0f5 | 870 | bool supp_ht, supp_vht, supp_he; |
2475b1cc MS |
871 | netdev_features_t feature_whitelist; |
872 | struct cfg80211_chan_def dflt_chandef = {}; | |
873 | ||
30686bf7 | 874 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
875 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
876 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
877 | return -EINVAL; | |
878 | ||
a7a6bdd0 AN |
879 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
880 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
881 | !local->ops->tdls_cancel_channel_switch || |
882 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
883 | return -EOPNOTSUPP; |
884 | ||
f3fe4e93 SS |
885 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && |
886 | !local->ops->set_frag_threshold)) | |
887 | return -EINVAL; | |
888 | ||
708d50ed AB |
889 | if (WARN_ON(local->hw.wiphy->interface_modes & |
890 | BIT(NL80211_IFTYPE_NAN) && | |
891 | (!local->ops->start_nan || !local->ops->stop_nan))) | |
892 | return -EINVAL; | |
893 | ||
38bb3e9d | 894 | #ifdef CONFIG_PM |
964dc9e2 | 895 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 896 | return -EINVAL; |
dfb89c56 | 897 | #endif |
eecc4800 | 898 | |
fe57d9f5 JB |
899 | if (!local->use_chanctx) { |
900 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
901 | const struct ieee80211_iface_combination *comb; | |
902 | ||
903 | comb = &local->hw.wiphy->iface_combinations[i]; | |
904 | ||
905 | if (comb->num_different_channels > 1) | |
906 | return -EINVAL; | |
907 | } | |
746a3365 | 908 | } else { |
fe57d9f5 JB |
909 | /* |
910 | * WDS is currently prohibited when channel contexts are used | |
911 | * because there's no clear definition of which channel WDS | |
912 | * type interfaces use | |
913 | */ | |
914 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) | |
915 | return -EINVAL; | |
164eb02d | 916 | |
486cf4c0 | 917 | /* DFS is not supported with multi-channel combinations yet */ |
164eb02d SW |
918 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
919 | const struct ieee80211_iface_combination *comb; | |
920 | ||
921 | comb = &local->hw.wiphy->iface_combinations[i]; | |
922 | ||
486cf4c0 MK |
923 | if (comb->radar_detect_widths && |
924 | comb->num_different_channels > 1) | |
164eb02d SW |
925 | return -EINVAL; |
926 | } | |
fe57d9f5 JB |
927 | } |
928 | ||
72d78728 AN |
929 | /* Only HW csum features are currently compatible with mac80211 */ |
930 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
80616c0d | 931 | NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA | |
e0352123 | 932 | NETIF_F_GSO_SOFTWARE | NETIF_F_RXCSUM; |
72d78728 AN |
933 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) |
934 | return -EINVAL; | |
935 | ||
78be49ec HS |
936 | if (hw->max_report_rates == 0) |
937 | hw->max_report_rates = hw->max_rates; | |
938 | ||
04ecd257 JB |
939 | local->rx_chains = 1; |
940 | ||
8318d78a JB |
941 | /* |
942 | * generic code guarantees at least one band, | |
943 | * set this very early because much code assumes | |
944 | * that hw.conf.channel is assigned | |
945 | */ | |
2a519311 | 946 | channels = 0; |
de95a54b | 947 | max_bitrates = 0; |
5ef2d41a | 948 | supp_ht = false; |
ba0afa2f | 949 | supp_vht = false; |
41cbb0f5 | 950 | supp_he = false; |
57fbcce3 | 951 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
8318d78a JB |
952 | struct ieee80211_supported_band *sband; |
953 | ||
954 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
955 | if (!sband) |
956 | continue; | |
fffa4b1c KB |
957 | |
958 | if (!dflt_chandef.chan) { | |
959 | cfg80211_chandef_create(&dflt_chandef, | |
960 | &sband->channels[0], | |
961 | NL80211_CHAN_NO_HT); | |
8318d78a | 962 | /* init channel we're on */ |
fffa4b1c KB |
963 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
964 | local->hw.conf.chandef = dflt_chandef; | |
965 | local->_oper_chandef = dflt_chandef; | |
966 | } | |
967 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 968 | } |
fffa4b1c | 969 | |
de95a54b JB |
970 | channels += sband->n_channels; |
971 | ||
972 | if (max_bitrates < sband->n_bitrates) | |
973 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 974 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 975 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 | 976 | |
41cbb0f5 LC |
977 | if (!supp_he) |
978 | supp_he = !!ieee80211_get_he_sta_cap(sband); | |
979 | ||
43071d8f FF |
980 | if (!sband->ht_cap.ht_supported) |
981 | continue; | |
04ecd257 JB |
982 | |
983 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
43071d8f FF |
984 | local->rx_chains = |
985 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
986 | local->rx_chains); | |
987 | ||
988 | /* no need to mask, SM_PS_DISABLED has all bits set */ | |
989 | sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
990 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
8318d78a | 991 | } |
f0706e82 | 992 | |
db3bdcb9 MP |
993 | /* if low-level driver supports AP, we also support VLAN. |
994 | * drivers advertising SW_CRYPTO_CONTROL should enable AP_VLAN | |
995 | * based on their support to transmit SW encrypted packets. | |
996 | */ | |
997 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP) && | |
998 | !ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL)) { | |
7527a782 JB |
999 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
1000 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
1001 | } | |
f59ac048 LR |
1002 | |
1003 | /* mac80211 always supports monitor */ | |
7527a782 JB |
1004 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
1005 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
1006 | ||
55de908a | 1007 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
1008 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
1009 | const struct ieee80211_iface_combination *c; | |
1010 | int j; | |
1011 | ||
1012 | c = &hw->wiphy->iface_combinations[i]; | |
1013 | ||
8e621fc9 JB |
1014 | for (j = 0; j < c->n_limits; j++) |
1015 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
1016 | c->limits[j].max > 1) | |
1017 | return -EINVAL; | |
1018 | } | |
1019 | ||
5b0ec94f JB |
1020 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
1021 | sizeof(void *) * channels, GFP_KERNEL); | |
1022 | if (!local->int_scan_req) | |
1023 | return -ENOMEM; | |
1024 | ||
57fbcce3 | 1025 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
5b0ec94f JB |
1026 | if (!local->hw.wiphy->bands[band]) |
1027 | continue; | |
1028 | local->int_scan_req->rates[band] = (u32) -1; | |
1029 | } | |
1030 | ||
5eb5a52d JB |
1031 | #ifndef CONFIG_MAC80211_MESH |
1032 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
1033 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
1034 | #endif | |
1035 | ||
1570ca59 JC |
1036 | /* if the underlying driver supports mesh, mac80211 will (at least) |
1037 | * provide routing of mesh authentication frames to userspace */ | |
1038 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
1039 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
1040 | ||
a621fa4d JB |
1041 | /* mac80211 supports control port protocol changing */ |
1042 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
1043 | ||
30686bf7 | 1044 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 1045 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 1046 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 1047 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 1048 | if (hw->max_signal <= 0) { |
1049 | result = -EINVAL; | |
1050 | goto fail_wiphy_register; | |
1051 | } | |
1052 | } | |
77965c97 | 1053 | |
96fc6efb AW |
1054 | if (!local->ops->set_key || |
1055 | ieee80211_hw_check(&local->hw, EXT_KEY_ID_NATIVE)) | |
1056 | wiphy_ext_feature_set(local->hw.wiphy, | |
1057 | NL80211_EXT_FEATURE_EXT_KEY_ID); | |
1058 | ||
de95a54b JB |
1059 | /* |
1060 | * Calculate scan IE length -- we need this to alloc | |
1061 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 1062 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
1063 | * information -- SSID is the driver's responsibility. |
1064 | */ | |
dc9f48ce JM |
1065 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
1066 | 3 /* DS Params */; | |
5ef2d41a JB |
1067 | if (supp_ht) |
1068 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 1069 | |
d0e6c21a | 1070 | if (supp_vht) |
ba0afa2f | 1071 | local->scan_ies_len += |
d4950281 | 1072 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 1073 | |
41cbb0f5 LC |
1074 | /* HE cap element is variable in size - set len to allow max size */ |
1075 | /* | |
1076 | * TODO: 1 is added at the end of the calculation to accommodate for | |
1077 | * the temporary placing of the HE capabilities IE under EXT. | |
1078 | * Remove it once it is placed in the final place. | |
1079 | */ | |
1080 | if (supp_he) | |
1081 | local->scan_ies_len += | |
1082 | 2 + sizeof(struct ieee80211_he_cap_elem) + | |
1083 | sizeof(struct ieee80211_he_mcs_nss_supp) + | |
1084 | IEEE80211_HE_PPE_THRES_MAX_LEN + 1; | |
1085 | ||
de95a54b JB |
1086 | if (!local->ops->hw_scan) { |
1087 | /* For hw_scan, driver needs to set these up. */ | |
1088 | local->hw.wiphy->max_scan_ssids = 4; | |
1089 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1090 | } | |
1091 | ||
1092 | /* | |
1093 | * If the driver supports any scan IEs, then assume the | |
1094 | * limit includes the IEs mac80211 will add, otherwise | |
1095 | * leave it at zero and let the driver sort it out; we | |
1096 | * still pass our IEs to the driver but userspace will | |
1097 | * not be allowed to in that case. | |
1098 | */ | |
1099 | if (local->hw.wiphy->max_scan_ie_len) | |
1100 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
1101 | ||
2475b1cc MS |
1102 | WARN_ON(!ieee80211_cs_list_valid(local->hw.cipher_schemes, |
1103 | local->hw.n_cipher_schemes)); | |
1104 | ||
1105 | result = ieee80211_init_cipher_suites(local); | |
1106 | if (result < 0) | |
1107 | goto fail_wiphy_register; | |
25e47c18 | 1108 | |
21f83589 JB |
1109 | if (!local->ops->remain_on_channel) |
1110 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1111 | |
dfe018bf AN |
1112 | /* mac80211 based drivers don't support internal TDLS setup */ |
1113 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1114 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1115 | ||
e9a21949 | 1116 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1117 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1118 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1119 | ||
caf56338 SS |
1120 | /* mac80211 supports multi BSSID, if the driver supports it */ |
1121 | if (ieee80211_hw_check(&local->hw, SUPPORTS_MULTI_BSSID)) { | |
1122 | local->hw.wiphy->support_mbssid = true; | |
1123 | if (ieee80211_hw_check(&local->hw, | |
1124 | SUPPORTS_ONLY_HE_MULTI_BSSID)) | |
1125 | local->hw.wiphy->support_only_he_mbssid = true; | |
1126 | else | |
1127 | local->ext_capa[2] |= | |
1128 | WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1129 | } | |
1130 | ||
0d06d9ba AO |
1131 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM; |
1132 | ||
f0706e82 JB |
1133 | result = wiphy_register(local->hw.wiphy); |
1134 | if (result < 0) | |
2a519311 | 1135 | goto fail_wiphy_register; |
f0706e82 | 1136 | |
e2530083 JB |
1137 | /* |
1138 | * We use the number of queues for feature tests (QoS, HT) internally | |
1139 | * so restrict them appropriately. | |
1140 | */ | |
e2530083 JB |
1141 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1142 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1143 | |
42935eca | 1144 | local->workqueue = |
d8537548 | 1145 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1146 | if (!local->workqueue) { |
f0706e82 JB |
1147 | result = -ENOMEM; |
1148 | goto fail_workqueue; | |
1149 | } | |
1150 | ||
b306f453 JB |
1151 | /* |
1152 | * The hardware needs headroom for sending the frame, | |
1153 | * and we need some headroom for passing the frame to monitor | |
1154 | * interfaces, but never both at the same time. | |
1155 | */ | |
33ccad35 | 1156 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1157 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1158 | |
e9f207f0 JB |
1159 | debugfs_hw_add(local); |
1160 | ||
b446918b HS |
1161 | /* |
1162 | * if the driver doesn't specify a max listen interval we | |
1163 | * use 5 which should be a safe default | |
1164 | */ | |
ea95bba4 | 1165 | if (local->hw.max_listen_interval == 0) |
b446918b | 1166 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1167 | |
1168 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1169 | ||
ff616381 | 1170 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1171 | |
167e33f4 AB |
1172 | if (!local->hw.max_nan_de_entries) |
1173 | local->hw.max_nan_de_entries = IEEE80211_MAX_NAN_INSTANCE_ID; | |
1174 | ||
b4809e94 THJ |
1175 | if (!local->hw.weight_multiplier) |
1176 | local->hw.weight_multiplier = 1; | |
1177 | ||
d4c4a9a1 | 1178 | result = ieee80211_wep_init(local); |
3473187d | 1179 | if (result < 0) |
0fb9a9ec JP |
1180 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
1181 | result); | |
d4c4a9a1 | 1182 | |
24d47300 KB |
1183 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1184 | ||
b57e6b56 MSS |
1185 | ieee80211_led_init(local); |
1186 | ||
dc8b274f THJ |
1187 | result = ieee80211_txq_setup_flows(local); |
1188 | if (result) | |
1189 | goto fail_flows; | |
1190 | ||
f0706e82 | 1191 | rtnl_lock(); |
f0706e82 | 1192 | |
830f9038 JB |
1193 | result = ieee80211_init_rate_ctrl_alg(local, |
1194 | hw->rate_control_algorithm); | |
f0706e82 | 1195 | if (result < 0) { |
0fb9a9ec JP |
1196 | wiphy_debug(local->hw.wiphy, |
1197 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1198 | goto fail_rate; |
1199 | } | |
1200 | ||
09b4a4fa JB |
1201 | if (local->rate_ctrl) { |
1202 | clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); | |
1203 | if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) | |
1204 | ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1205 | } | |
1206 | ||
1207 | /* | |
1208 | * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, | |
1209 | * or have it when we don't, copy the sband structure and set/clear it. | |
1210 | * This is necessary because rate scaling algorithms could be switched | |
1211 | * and have different support values. | |
1212 | * Print a message so that in the common case the reallocation can be | |
1213 | * avoided. | |
1214 | */ | |
1215 | BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); | |
1216 | for (band = 0; band < NUM_NL80211_BANDS; band++) { | |
1217 | struct ieee80211_supported_band *sband; | |
1218 | bool local_cap, ie_cap; | |
1219 | ||
1220 | local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1221 | ||
1222 | sband = local->hw.wiphy->bands[band]; | |
1223 | if (!sband || !sband->vht_cap.vht_supported) | |
1224 | continue; | |
1225 | ||
1226 | ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & | |
1227 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); | |
1228 | ||
1229 | if (local_cap == ie_cap) | |
1230 | continue; | |
1231 | ||
1232 | sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); | |
48f3b9e9 WY |
1233 | if (!sband) { |
1234 | result = -ENOMEM; | |
09b4a4fa | 1235 | goto fail_rate; |
48f3b9e9 | 1236 | } |
09b4a4fa JB |
1237 | |
1238 | wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", | |
1239 | band); | |
1240 | ||
1241 | sband->vht_cap.vht_mcs.tx_highest ^= | |
1242 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
1243 | ||
1244 | local->hw.wiphy->bands[band] = sband; | |
1245 | local->sband_allocated |= BIT(band); | |
1246 | } | |
1247 | ||
8dffff21 | 1248 | /* add one default STA interface if supported */ |
e27513fb | 1249 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1250 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
dd665d23 JB |
1251 | struct vif_params params = {0}; |
1252 | ||
6bab2e19 | 1253 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
dd665d23 | 1254 | NL80211_IFTYPE_STATION, ¶ms); |
8dffff21 | 1255 | if (result) |
0fb9a9ec JP |
1256 | wiphy_warn(local->hw.wiphy, |
1257 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1258 | } |
f0706e82 | 1259 | |
f0706e82 JB |
1260 | rtnl_unlock(); |
1261 | ||
26b36cfe | 1262 | #ifdef CONFIG_INET |
2b2c009e JO |
1263 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1264 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1265 | if (result) | |
1266 | goto fail_ifa; | |
26b36cfe | 1267 | #endif |
2b2c009e | 1268 | |
a65240c1 JB |
1269 | #if IS_ENABLED(CONFIG_IPV6) |
1270 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1271 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1272 | if (result) | |
1273 | goto fail_ifa6; | |
1274 | #endif | |
1275 | ||
f0706e82 JB |
1276 | return 0; |
1277 | ||
a65240c1 JB |
1278 | #if IS_ENABLED(CONFIG_IPV6) |
1279 | fail_ifa6: | |
93c08c32 | 1280 | #ifdef CONFIG_INET |
a65240c1 JB |
1281 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1282 | #endif | |
1283 | #endif | |
1284 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1285 | fail_ifa: |
93c08c32 | 1286 | #endif |
54330bf6 JB |
1287 | rtnl_lock(); |
1288 | rate_control_deinitialize(local); | |
10f644a4 | 1289 | ieee80211_remove_interfaces(local); |
10f644a4 | 1290 | fail_rate: |
f0706e82 | 1291 | rtnl_unlock(); |
54330bf6 | 1292 | ieee80211_led_exit(local); |
d4c4a9a1 | 1293 | ieee80211_wep_free(local); |
dc8b274f | 1294 | fail_flows: |
42935eca | 1295 | destroy_workqueue(local->workqueue); |
10f644a4 | 1296 | fail_workqueue: |
f0706e82 | 1297 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 1298 | fail_wiphy_register: |
3ffc2a90 JB |
1299 | if (local->wiphy_ciphers_allocated) |
1300 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 1301 | kfree(local->int_scan_req); |
f0706e82 JB |
1302 | return result; |
1303 | } | |
1304 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1305 | ||
f0706e82 JB |
1306 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1307 | { | |
1308 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1309 | |
1310 | tasklet_kill(&local->tx_pending_tasklet); | |
1311 | tasklet_kill(&local->tasklet); | |
1312 | ||
26b36cfe | 1313 | #ifdef CONFIG_INET |
2b2c009e | 1314 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1315 | #endif |
a65240c1 JB |
1316 | #if IS_ENABLED(CONFIG_IPV6) |
1317 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1318 | #endif | |
10f644a4 | 1319 | |
f0706e82 JB |
1320 | rtnl_lock(); |
1321 | ||
79010420 JB |
1322 | /* |
1323 | * At this point, interface list manipulations are fine | |
1324 | * because the driver cannot be handing us frames any | |
1325 | * more and the tasklet is killed. | |
1326 | */ | |
75636525 | 1327 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1328 | |
f0706e82 JB |
1329 | rtnl_unlock(); |
1330 | ||
aaa016cc | 1331 | cancel_delayed_work_sync(&local->roc_work); |
258086a4 | 1332 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1333 | cancel_work_sync(&local->reconfig_filter); |
c8ff71e6 | 1334 | cancel_work_sync(&local->tdls_chsw_work); |
18db594a | 1335 | flush_work(&local->sched_scan_stopped_work); |
4a199068 | 1336 | flush_work(&local->radar_detected_work); |
3ac64bee | 1337 | |
f0706e82 | 1338 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1339 | rate_control_deinitialize(local); |
1340 | ||
f64f9e71 JP |
1341 | if (skb_queue_len(&local->skb_queue) || |
1342 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1343 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1344 | skb_queue_purge(&local->skb_queue); |
1345 | skb_queue_purge(&local->skb_queue_unreliable); | |
c8ff71e6 | 1346 | skb_queue_purge(&local->skb_queue_tdls_chsw); |
f0706e82 | 1347 | |
42935eca | 1348 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
1349 | wiphy_unregister(local->hw.wiphy); |
1350 | ieee80211_wep_free(local); | |
1351 | ieee80211_led_exit(local); | |
5ba63533 | 1352 | kfree(local->int_scan_req); |
f0706e82 JB |
1353 | } |
1354 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1355 | ||
a729cff8 JB |
1356 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1357 | { | |
1358 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1359 | kfree_skb(p); | |
1360 | return 0; | |
1361 | } | |
1362 | ||
f0706e82 JB |
1363 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1364 | { | |
1365 | struct ieee80211_local *local = hw_to_local(hw); | |
09b4a4fa | 1366 | enum nl80211_band band; |
f0706e82 | 1367 | |
c771c9d8 | 1368 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1369 | mutex_destroy(&local->mtx); |
c771c9d8 | 1370 | |
3ffc2a90 JB |
1371 | if (local->wiphy_ciphers_allocated) |
1372 | kfree(local->hw.wiphy->cipher_suites); | |
1373 | ||
a729cff8 JB |
1374 | idr_for_each(&local->ack_status_frames, |
1375 | ieee80211_free_ack_frame, NULL); | |
1376 | idr_destroy(&local->ack_status_frames); | |
1377 | ||
54330bf6 JB |
1378 | sta_info_stop(local); |
1379 | ||
8d5c2585 JB |
1380 | ieee80211_free_led_names(local); |
1381 | ||
09b4a4fa JB |
1382 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1383 | if (!(local->sband_allocated & BIT(band))) | |
1384 | continue; | |
1385 | kfree(local->hw.wiphy->bands[band]); | |
1386 | } | |
1387 | ||
f0706e82 JB |
1388 | wiphy_free(local->hw.wiphy); |
1389 | } | |
1390 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1391 | ||
f0706e82 JB |
1392 | static int __init ieee80211_init(void) |
1393 | { | |
1394 | struct sk_buff *skb; | |
1395 | int ret; | |
1396 | ||
e039fa4a JB |
1397 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1398 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1399 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1400 | |
cccf129f FF |
1401 | ret = rc80211_minstrel_init(); |
1402 | if (ret) | |
1403 | return ret; | |
1404 | ||
47846c9b JB |
1405 | ret = ieee80211_iface_init(); |
1406 | if (ret) | |
1407 | goto err_netdev; | |
e9f207f0 | 1408 | |
f0706e82 | 1409 | return 0; |
47846c9b | 1410 | err_netdev: |
47846c9b JB |
1411 | rc80211_minstrel_exit(); |
1412 | ||
1413 | return ret; | |
f0706e82 JB |
1414 | } |
1415 | ||
f0706e82 JB |
1416 | static void __exit ieee80211_exit(void) |
1417 | { | |
cccf129f | 1418 | rc80211_minstrel_exit(); |
ac71c691 | 1419 | |
bf7cd94d | 1420 | ieee80211s_stop(); |
902acc78 | 1421 | |
47846c9b | 1422 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1423 | |
1424 | rcu_barrier(); | |
f0706e82 JB |
1425 | } |
1426 | ||
1427 | ||
ca9938fe | 1428 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1429 | module_exit(ieee80211_exit); |
1430 | ||
1431 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1432 | MODULE_LICENSE("GPL"); |