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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f0706e82 JB |
2 | /* |
3 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
4 | * Copyright 2005-2006, Devicescape Software, Inc. | |
5 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
d98ad83e | 6 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
41cbb0f5 | 7 | * Copyright (C) 2017 Intel Deutschland GmbH |
caf56338 | 8 | * Copyright (C) 2018 - 2019 Intel Corporation |
f0706e82 JB |
9 | */ |
10 | ||
11 | #include <net/mac80211.h> | |
f0706e82 | 12 | #include <linux/module.h> |
5fdb3735 | 13 | #include <linux/fips.h> |
f0706e82 JB |
14 | #include <linux/init.h> |
15 | #include <linux/netdevice.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/skbuff.h> | |
19 | #include <linux/etherdevice.h> | |
20 | #include <linux/if_arp.h> | |
f0706e82 | 21 | #include <linux/rtnetlink.h> |
f0706e82 | 22 | #include <linux/bitmap.h> |
68542962 | 23 | #include <linux/inetdevice.h> |
881d966b | 24 | #include <net/net_namespace.h> |
f0706e82 | 25 | #include <net/cfg80211.h> |
a65240c1 | 26 | #include <net/addrconf.h> |
f0706e82 | 27 | |
f0706e82 | 28 | #include "ieee80211_i.h" |
24487981 | 29 | #include "driver-ops.h" |
2c8dccc7 | 30 | #include "rate.h" |
f7a92144 | 31 | #include "mesh.h" |
f0706e82 | 32 | #include "wep.h" |
2c8dccc7 | 33 | #include "led.h" |
e9f207f0 | 34 | #include "debugfs.h" |
f0706e82 | 35 | |
0d143fe1 | 36 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 37 | { |
3ac64bee | 38 | u64 mc; |
4150c572 JB |
39 | unsigned int changed_flags; |
40 | unsigned int new_flags = 0; | |
41 | ||
53918994 | 42 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
43 | new_flags |= FIF_ALLMULTI; |
44 | ||
8a690674 BG |
45 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
46 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) | |
8cc9a739 MW |
47 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
48 | ||
7be5086d JB |
49 | if (local->fif_probe_req || local->probe_req_reg) |
50 | new_flags |= FIF_PROBE_REQ; | |
51 | ||
8cc9a739 MW |
52 | if (local->fif_fcsfail) |
53 | new_flags |= FIF_FCSFAIL; | |
54 | ||
55 | if (local->fif_plcpfail) | |
56 | new_flags |= FIF_PLCPFAIL; | |
57 | ||
58 | if (local->fif_control) | |
59 | new_flags |= FIF_CONTROL; | |
60 | ||
61 | if (local->fif_other_bss) | |
62 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 63 | |
e3b90ca2 IP |
64 | if (local->fif_pspoll) |
65 | new_flags |= FIF_PSPOLL; | |
66 | ||
3ac64bee | 67 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
68 | changed_flags = local->filter_flags ^ new_flags; |
69 | ||
22bedad3 | 70 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
71 | spin_unlock_bh(&local->filter_lock); |
72 | ||
4150c572 JB |
73 | /* be a bit nasty */ |
74 | new_flags |= (1<<31); | |
75 | ||
3ac64bee | 76 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
77 | |
78 | WARN_ON(new_flags & (1<<31)); | |
79 | ||
80 | local->filter_flags = new_flags & ~(1<<31); | |
81 | } | |
82 | ||
3ac64bee JB |
83 | static void ieee80211_reconfig_filter(struct work_struct *work) |
84 | { | |
85 | struct ieee80211_local *local = | |
86 | container_of(work, struct ieee80211_local, reconfig_filter); | |
87 | ||
88 | ieee80211_configure_filter(local); | |
89 | } | |
90 | ||
55de908a | 91 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
b2c258fb | 92 | { |
1ea6f9c0 | 93 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 94 | struct cfg80211_chan_def chandef = {}; |
55de908a | 95 | u32 changed = 0; |
e8975581 | 96 | int power; |
ffd2778b | 97 | u32 offchannel_flag; |
f0706e82 | 98 | |
ffd2778b | 99 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 100 | |
7ca15a0a SW |
101 | if (local->scan_chandef.chan) { |
102 | chandef = local->scan_chandef; | |
b23b025f | 103 | } else if (local->tmp_channel) { |
675a0b04 KB |
104 | chandef.chan = local->tmp_channel; |
105 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
106 | chandef.center_freq1 = chandef.chan->center_freq; | |
107 | } else | |
108 | chandef = local->_oper_chandef; | |
109 | ||
110 | WARN(!cfg80211_chandef_valid(&chandef), | |
111 | "control:%d MHz width:%d center: %d/%d MHz", | |
112 | chandef.chan->center_freq, chandef.width, | |
113 | chandef.center_freq1, chandef.center_freq2); | |
114 | ||
115 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) | |
b23b025f BG |
116 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
117 | else | |
118 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
119 | ||
ffd2778b | 120 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 121 | |
675a0b04 KB |
122 | if (offchannel_flag || |
123 | !cfg80211_chandef_identical(&local->hw.conf.chandef, | |
124 | &local->_oper_chandef)) { | |
125 | local->hw.conf.chandef = chandef; | |
e8975581 JB |
126 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
127 | } | |
8318d78a | 128 | |
0f78231b JB |
129 | if (!conf_is_ht(&local->hw.conf)) { |
130 | /* | |
131 | * mac80211.h documents that this is only valid | |
132 | * when the channel is set to an HT type, and | |
133 | * that otherwise STATIC is used. | |
134 | */ | |
135 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
136 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
137 | local->hw.conf.smps_mode = local->smps_mode; | |
138 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
139 | } | |
140 | ||
0430c883 | 141 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 142 | |
1ea6f9c0 JB |
143 | rcu_read_lock(); |
144 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
145 | if (!rcu_access_pointer(sdata->vif.chanctx_conf)) | |
146 | continue; | |
764152ff FF |
147 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
148 | continue; | |
db6d9e9e BG |
149 | if (sdata->vif.bss_conf.txpower == INT_MIN) |
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 */ | |
2638eb8b | 357 | ifa = rtnl_dereference(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; | |
2638eb8b | 361 | ifa = rtnl_dereference(ifa->ifa_next); |
68542962 JO |
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, | |
ff74c51e IP |
421 | /* |
422 | * To support Pre Association Security Negotiation (PASN) while | |
423 | * already associated to one AP, allow user space to register to | |
424 | * Rx authentication frames, so that the user space logic would | |
425 | * be able to receive/handle authentication frames from a | |
426 | * different AP as part of PASN. | |
427 | * It is expected that user space would intelligently register | |
428 | * for Rx authentication frames, i.e., only when PASN is used | |
429 | * and configure a match filter only for PASN authentication | |
430 | * algorithm, as otherwise the MLME functionality of mac80211 | |
431 | * would be broken. | |
432 | */ | |
2e161f78 | 433 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
ff74c51e | 434 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
2e161f78 JB |
435 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
436 | }, | |
437 | [NL80211_IFTYPE_AP] = { | |
438 | .tx = 0xffff, | |
439 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
440 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
441 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
442 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
443 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
444 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
445 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
446 | }, | |
447 | [NL80211_IFTYPE_AP_VLAN] = { | |
448 | /* copy AP */ | |
449 | .tx = 0xffff, | |
450 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
451 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
452 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
453 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
454 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
455 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
456 | BIT(IEEE80211_STYPE_ACTION >> 4), |
457 | }, | |
458 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
459 | .tx = 0xffff, | |
460 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
461 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
462 | }, | |
463 | [NL80211_IFTYPE_P2P_GO] = { | |
464 | .tx = 0xffff, | |
465 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
466 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
467 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
468 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
469 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
470 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
471 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
472 | }, | |
c7108a71 JC |
473 | [NL80211_IFTYPE_MESH_POINT] = { |
474 | .tx = 0xffff, | |
71839121 JC |
475 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
476 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
477 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 478 | }, |
f142c6b9 JB |
479 | [NL80211_IFTYPE_P2P_DEVICE] = { |
480 | .tx = 0xffff, | |
481 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
482 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
483 | }, | |
2e161f78 JB |
484 | }; |
485 | ||
ef96a842 BG |
486 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
487 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
488 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
489 | ||
490 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
491 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 492 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 493 | IEEE80211_HT_CAP_SGI_40 | |
d9bb4108 SM |
494 | IEEE80211_HT_CAP_TX_STBC | |
495 | IEEE80211_HT_CAP_RX_STBC | | |
9a07bf50 JM |
496 | IEEE80211_HT_CAP_LDPC_CODING | |
497 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
498 | .mcs = { |
499 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
500 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
501 | }, | |
502 | }; | |
503 | ||
dd5ecfea JB |
504 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
505 | .vht_cap_info = | |
506 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
507 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
508 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
67d1ba8a | 509 | IEEE80211_VHT_CAP_RXSTBC_MASK | |
dd5ecfea JB |
510 | IEEE80211_VHT_CAP_TXSTBC | |
511 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
512 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
513 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
514 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
515 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
516 | .supp_mcs = { | |
517 | .rx_mcs_map = cpu_to_le16(~0), | |
518 | .tx_mcs_map = cpu_to_le16(~0), | |
519 | }, | |
520 | }; | |
521 | ||
ad28757e BG |
522 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
523 | const struct ieee80211_ops *ops, | |
524 | const char *requested_name) | |
f0706e82 | 525 | { |
f0706e82 | 526 | struct ieee80211_local *local; |
96f5e66e | 527 | int priv_size, i; |
f0706e82 | 528 | struct wiphy *wiphy; |
fe57d9f5 | 529 | bool use_chanctx; |
f0706e82 | 530 | |
c0af0734 JB |
531 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
532 | !ops->add_interface || !ops->remove_interface || | |
533 | !ops->configure_filter)) | |
534 | return NULL; | |
535 | ||
f09603a2 JB |
536 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
537 | return NULL; | |
538 | ||
e269d860 JB |
539 | /* check all or no channel context operations exist */ |
540 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
541 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
542 | !!ops->unassign_vif_chanctx; | |
543 | if (WARN_ON(i != 0 && i != 5)) | |
544 | return NULL; | |
fe57d9f5 | 545 | use_chanctx = i == 5; |
e269d860 | 546 | |
f0706e82 JB |
547 | /* Ensure 32-byte alignment of our private data and hw private data. |
548 | * We use the wiphy priv data for both our ieee80211_local and for | |
549 | * the driver's private data | |
550 | * | |
551 | * In memory it'll be like this: | |
552 | * | |
553 | * +-------------------------+ | |
554 | * | struct wiphy | | |
555 | * +-------------------------+ | |
556 | * | struct ieee80211_local | | |
557 | * +-------------------------+ | |
558 | * | driver's private data | | |
559 | * +-------------------------+ | |
560 | * | |
561 | */ | |
1ce8e7b5 | 562 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 563 | |
ad28757e | 564 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
565 | |
566 | if (!wiphy) | |
567 | return NULL; | |
568 | ||
2e161f78 JB |
569 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
570 | ||
207aba60 JB |
571 | wiphy->privid = mac80211_wiphy_privid; |
572 | ||
9bc383de JB |
573 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
574 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 575 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 576 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
577 | WIPHY_FLAG_OFFCHAN_TX; |
578 | ||
579 | if (ops->remain_on_channel) | |
580 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; | |
207aba60 | 581 | |
b292219f JB |
582 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
583 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 584 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 585 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 586 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
587 | NL80211_FEATURE_USERSPACE_MPM | |
588 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
f3ca52aa | 589 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_FILS_STA); |
018f6fbf DK |
590 | wiphy_ext_feature_set(wiphy, |
591 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211); | |
9b125c27 MT |
592 | wiphy_ext_feature_set(wiphy, |
593 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_MAC_ADDRS); | |
a729cff8 | 594 | |
b9771d41 | 595 | if (!ops->hw_scan) { |
5c95b940 AQ |
596 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
597 | NL80211_FEATURE_AP_SCAN; | |
b9771d41 JB |
598 | /* |
599 | * if the driver behaves correctly using the probe request | |
600 | * (template) from mac80211, then both of these should be | |
601 | * supported even with hw scan - but let drivers opt in. | |
602 | */ | |
603 | wiphy_ext_feature_set(wiphy, | |
604 | NL80211_EXT_FEATURE_SCAN_RANDOM_SN); | |
605 | wiphy_ext_feature_set(wiphy, | |
606 | NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); | |
607 | } | |
cd2bb512 | 608 | |
207aba60 JB |
609 | if (!ops->set_key) |
610 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 611 | |
2fe4a29a THJ |
612 | if (ops->wake_tx_queue) |
613 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_TXQS); | |
614 | ||
f278ce4f EG |
615 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_RRM); |
616 | ||
0c1ad2ca | 617 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
618 | |
619 | local = wiphy_priv(wiphy); | |
de95a54b | 620 | |
7bedd0cf JB |
621 | if (sta_info_init(local)) |
622 | goto err_free; | |
623 | ||
f0706e82 JB |
624 | local->hw.wiphy = wiphy; |
625 | ||
1ce8e7b5 | 626 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
627 | |
628 | local->ops = ops; | |
fe57d9f5 | 629 | local->use_chanctx = use_chanctx; |
f0706e82 | 630 | |
70e53669 WG |
631 | /* |
632 | * We need a bit of data queued to build aggregates properly, so | |
633 | * instruct the TCP stack to allow more than a single ms of data | |
634 | * to be queued in the stack. The value is a bit-shift of 1 | |
5c14a4d0 | 635 | * second, so 7 is ~8ms of queued data. Only affects local TCP |
70e53669 WG |
636 | * sockets. |
637 | * This is the default, anyhow - drivers may need to override it | |
638 | * for local reasons (longer buffers, longer completion time, or | |
639 | * similar). | |
640 | */ | |
5c14a4d0 | 641 | local->hw.tx_sk_pacing_shift = 7; |
70e53669 | 642 | |
e6a9854b JB |
643 | /* set up some defaults */ |
644 | local->hw.queues = 1; | |
645 | local->hw.max_rates = 1; | |
78be49ec | 646 | local->hw.max_report_rates = 0; |
b8042b3d JB |
647 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; |
648 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; | |
3a25a8c8 | 649 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
650 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
651 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
652 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
653 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
654 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
655 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
656 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
657 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
658 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
06354665 | 659 | local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; |
1ea6f9c0 | 660 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 661 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 662 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 663 | |
e9a21949 LC |
664 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
665 | ||
666 | wiphy->extended_capabilities = local->ext_capa; | |
667 | wiphy->extended_capabilities_mask = local->ext_capa; | |
668 | wiphy->extended_capabilities_len = | |
669 | ARRAY_SIZE(local->ext_capa); | |
670 | ||
79010420 | 671 | INIT_LIST_HEAD(&local->interfaces); |
f64331d5 | 672 | INIT_LIST_HEAD(&local->mon_list); |
2f787b0b YH |
673 | |
674 | __hw_addr_init(&local->mc_list); | |
675 | ||
c771c9d8 | 676 | mutex_init(&local->iflist_mtx); |
a1699b75 | 677 | mutex_init(&local->mtx); |
f0706e82 | 678 | |
ad0e2b5a | 679 | mutex_init(&local->key_mtx); |
3b8d81e0 | 680 | spin_lock_init(&local->filter_lock); |
f9e124fb | 681 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
682 | spin_lock_init(&local->queue_stop_reason_lock); |
683 | ||
18667600 THJ |
684 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
685 | INIT_LIST_HEAD(&local->active_txqs[i]); | |
686 | spin_lock_init(&local->active_txq_lock[i]); | |
3ace10f5 KY |
687 | local->aql_txq_limit_low[i] = IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L; |
688 | local->aql_txq_limit_high[i] = | |
689 | IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H; | |
18667600 | 690 | } |
3ace10f5 | 691 | |
911bde0f | 692 | local->airtime_flags = AIRTIME_USE_TX | AIRTIME_USE_RX; |
3ace10f5 KY |
693 | local->aql_threshold = IEEE80211_AQL_THRESHOLD; |
694 | atomic_set(&local->aql_total_pending_airtime, 0); | |
18667600 | 695 | |
d01a1e65 MK |
696 | INIT_LIST_HEAD(&local->chanctx_list); |
697 | mutex_init(&local->chanctx_mtx); | |
698 | ||
c2b13452 | 699 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 700 | |
f2753ddb JB |
701 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
702 | ||
164eb02d SW |
703 | INIT_WORK(&local->radar_detected_work, |
704 | ieee80211_dfs_radar_detected_work); | |
705 | ||
3ac64bee | 706 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 707 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 708 | |
520eb820 KV |
709 | INIT_WORK(&local->dynamic_ps_enable_work, |
710 | ieee80211_dynamic_ps_enable_work); | |
711 | INIT_WORK(&local->dynamic_ps_disable_work, | |
712 | ieee80211_dynamic_ps_disable_work); | |
34f11cd3 | 713 | timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); |
520eb820 | 714 | |
85a9994a LC |
715 | INIT_WORK(&local->sched_scan_stopped_work, |
716 | ieee80211_sched_scan_stopped_work); | |
717 | ||
c8ff71e6 AN |
718 | INIT_WORK(&local->tdls_chsw_work, ieee80211_tdls_chsw_work); |
719 | ||
a729cff8 JB |
720 | spin_lock_init(&local->ack_status_lock); |
721 | idr_init(&local->ack_status_frames); | |
a729cff8 | 722 | |
a6a67db2 | 723 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 724 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
725 | atomic_set(&local->agg_queue_stop[i], 0); |
726 | } | |
f0706e82 JB |
727 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
728 | (unsigned long)local); | |
f0706e82 | 729 | |
21a5d4c3 MP |
730 | if (ops->wake_tx_queue) |
731 | tasklet_init(&local->wake_txqs_tasklet, ieee80211_wake_txqs, | |
732 | (unsigned long)local); | |
733 | ||
f0706e82 JB |
734 | tasklet_init(&local->tasklet, |
735 | ieee80211_tasklet_handler, | |
736 | (unsigned long) local); | |
f0706e82 JB |
737 | |
738 | skb_queue_head_init(&local->skb_queue); | |
739 | skb_queue_head_init(&local->skb_queue_unreliable); | |
c8ff71e6 | 740 | skb_queue_head_init(&local->skb_queue_tdls_chsw); |
f0706e82 | 741 | |
8d5c2585 | 742 | ieee80211_alloc_led_names(local); |
fe67c913 | 743 | |
2eb278e0 | 744 | ieee80211_roc_setup(local); |
21f83589 | 745 | |
99ee7cae JB |
746 | local->hw.radiotap_timestamp.units_pos = -1; |
747 | local->hw.radiotap_timestamp.accuracy = -1; | |
748 | ||
005e472b | 749 | return &local->hw; |
7bedd0cf JB |
750 | err_free: |
751 | wiphy_free(wiphy); | |
752 | return NULL; | |
f0706e82 | 753 | } |
ad28757e | 754 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 755 | |
2475b1cc | 756 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 757 | { |
5fdb3735 | 758 | bool have_wep = !fips_enabled; /* FIPS does not permit the use of RC4 */ |
30686bf7 | 759 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
2475b1cc MS |
760 | int n_suites = 0, r = 0, w = 0; |
761 | u32 *suites; | |
25e47c18 | 762 | static const u32 cipher_suites[] = { |
5daa8a8e | 763 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
764 | WLAN_CIPHER_SUITE_WEP40, |
765 | WLAN_CIPHER_SUITE_WEP104, | |
766 | WLAN_CIPHER_SUITE_TKIP, | |
767 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 768 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
769 | WLAN_CIPHER_SUITE_GCMP, |
770 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
771 | |
772 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
773 | WLAN_CIPHER_SUITE_AES_CMAC, |
774 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
775 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
776 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 777 | }; |
8318d78a | 778 | |
30686bf7 | 779 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
780 | local->hw.wiphy->cipher_suites) { |
781 | /* If the driver advertises, or doesn't support SW crypto, | |
782 | * we only need to remove WEP if necessary. | |
783 | */ | |
784 | if (have_wep) | |
785 | return 0; | |
786 | ||
787 | /* well if it has _no_ ciphers ... fine */ | |
788 | if (!local->hw.wiphy->n_cipher_suites) | |
789 | return 0; | |
790 | ||
791 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
792 | suites = kmemdup(local->hw.wiphy->cipher_suites, | |
793 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
794 | GFP_KERNEL); | |
795 | if (!suites) | |
796 | return -ENOMEM; | |
2475b1cc | 797 | |
fa7e1fbc JB |
798 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
799 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
800 | ||
801 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
802 | suite == WLAN_CIPHER_SUITE_WEP104) | |
803 | continue; | |
804 | suites[w++] = suite; | |
805 | } | |
806 | } else if (!local->hw.cipher_schemes) { | |
807 | /* If the driver doesn't have cipher schemes, there's nothing | |
808 | * else to do other than assign the (software supported and | |
809 | * perhaps offloaded) cipher suites. | |
810 | */ | |
2475b1cc MS |
811 | local->hw.wiphy->cipher_suites = cipher_suites; |
812 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
813 | ||
814 | if (!have_mfp) | |
8ade538b | 815 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
816 | |
817 | if (!have_wep) { | |
818 | local->hw.wiphy->cipher_suites += 2; | |
819 | local->hw.wiphy->n_cipher_suites -= 2; | |
820 | } | |
821 | ||
fa7e1fbc | 822 | /* not dynamically allocated, so just return */ |
2475b1cc | 823 | return 0; |
fa7e1fbc JB |
824 | } else { |
825 | const struct ieee80211_cipher_scheme *cs; | |
2475b1cc | 826 | |
fa7e1fbc JB |
827 | cs = local->hw.cipher_schemes; |
828 | ||
829 | /* Driver specifies cipher schemes only (but not cipher suites | |
830 | * including the schemes) | |
831 | * | |
00b9cfa3 | 832 | * We start counting ciphers defined by schemes, TKIP, CCMP, |
2b2ba0db | 833 | * CCMP-256, GCMP, and GCMP-256 |
2475b1cc | 834 | */ |
2b2ba0db | 835 | n_suites = local->hw.n_cipher_schemes + 5; |
2475b1cc MS |
836 | |
837 | /* check if we have WEP40 and WEP104 */ | |
838 | if (have_wep) | |
839 | n_suites += 2; | |
840 | ||
8ade538b JM |
841 | /* check if we have AES_CMAC, BIP-CMAC-256, BIP-GMAC-128, |
842 | * BIP-GMAC-256 | |
843 | */ | |
2475b1cc | 844 | if (have_mfp) |
8ade538b | 845 | n_suites += 4; |
2475b1cc | 846 | |
6da2ec56 | 847 | suites = kmalloc_array(n_suites, sizeof(u32), GFP_KERNEL); |
2475b1cc MS |
848 | if (!suites) |
849 | return -ENOMEM; | |
850 | ||
851 | suites[w++] = WLAN_CIPHER_SUITE_CCMP; | |
2b2ba0db | 852 | suites[w++] = WLAN_CIPHER_SUITE_CCMP_256; |
2475b1cc | 853 | suites[w++] = WLAN_CIPHER_SUITE_TKIP; |
00b9cfa3 JM |
854 | suites[w++] = WLAN_CIPHER_SUITE_GCMP; |
855 | suites[w++] = WLAN_CIPHER_SUITE_GCMP_256; | |
2475b1cc MS |
856 | |
857 | if (have_wep) { | |
858 | suites[w++] = WLAN_CIPHER_SUITE_WEP40; | |
859 | suites[w++] = WLAN_CIPHER_SUITE_WEP104; | |
860 | } | |
861 | ||
56c52da2 | 862 | if (have_mfp) { |
2475b1cc | 863 | suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC; |
56c52da2 | 864 | suites[w++] = WLAN_CIPHER_SUITE_BIP_CMAC_256; |
8ade538b JM |
865 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_128; |
866 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
56c52da2 | 867 | } |
2475b1cc | 868 | |
e3a55b53 | 869 | for (r = 0; r < local->hw.n_cipher_schemes; r++) { |
2475b1cc | 870 | suites[w++] = cs[r].cipher; |
94c78cb4 JB |
871 | if (WARN_ON(cs[r].pn_len > IEEE80211_MAX_PN_LEN)) { |
872 | kfree(suites); | |
e3a55b53 | 873 | return -EINVAL; |
94c78cb4 | 874 | } |
e3a55b53 | 875 | } |
2475b1cc MS |
876 | } |
877 | ||
878 | local->hw.wiphy->cipher_suites = suites; | |
879 | local->hw.wiphy->n_cipher_suites = w; | |
880 | local->wiphy_ciphers_allocated = true; | |
881 | ||
882 | return 0; | |
883 | } | |
884 | ||
885 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
886 | { | |
887 | struct ieee80211_local *local = hw_to_local(hw); | |
888 | int result, i; | |
57fbcce3 | 889 | enum nl80211_band band; |
2475b1cc | 890 | int channels, max_bitrates; |
41cbb0f5 | 891 | bool supp_ht, supp_vht, supp_he; |
2475b1cc MS |
892 | struct cfg80211_chan_def dflt_chandef = {}; |
893 | ||
30686bf7 | 894 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
895 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
896 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
897 | return -EINVAL; | |
898 | ||
a7a6bdd0 AN |
899 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
900 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
901 | !local->ops->tdls_cancel_channel_switch || |
902 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
903 | return -EOPNOTSUPP; |
904 | ||
f3fe4e93 SS |
905 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && |
906 | !local->ops->set_frag_threshold)) | |
907 | return -EINVAL; | |
908 | ||
708d50ed AB |
909 | if (WARN_ON(local->hw.wiphy->interface_modes & |
910 | BIT(NL80211_IFTYPE_NAN) && | |
911 | (!local->ops->start_nan || !local->ops->stop_nan))) | |
912 | return -EINVAL; | |
913 | ||
38bb3e9d | 914 | #ifdef CONFIG_PM |
964dc9e2 | 915 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 916 | return -EINVAL; |
dfb89c56 | 917 | #endif |
eecc4800 | 918 | |
fe57d9f5 JB |
919 | if (!local->use_chanctx) { |
920 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
921 | const struct ieee80211_iface_combination *comb; | |
922 | ||
923 | comb = &local->hw.wiphy->iface_combinations[i]; | |
924 | ||
925 | if (comb->num_different_channels > 1) | |
926 | return -EINVAL; | |
927 | } | |
746a3365 | 928 | } else { |
fe57d9f5 JB |
929 | /* |
930 | * WDS is currently prohibited when channel contexts are used | |
931 | * because there's no clear definition of which channel WDS | |
932 | * type interfaces use | |
933 | */ | |
934 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) | |
935 | return -EINVAL; | |
164eb02d | 936 | |
486cf4c0 | 937 | /* DFS is not supported with multi-channel combinations yet */ |
164eb02d SW |
938 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
939 | const struct ieee80211_iface_combination *comb; | |
940 | ||
941 | comb = &local->hw.wiphy->iface_combinations[i]; | |
942 | ||
486cf4c0 MK |
943 | if (comb->radar_detect_widths && |
944 | comb->num_different_channels > 1) | |
164eb02d SW |
945 | return -EINVAL; |
946 | } | |
fe57d9f5 JB |
947 | } |
948 | ||
72d78728 | 949 | /* Only HW csum features are currently compatible with mac80211 */ |
07b83d2e | 950 | if (WARN_ON(hw->netdev_features & ~MAC80211_SUPPORTED_FEATURES)) |
72d78728 AN |
951 | return -EINVAL; |
952 | ||
78be49ec HS |
953 | if (hw->max_report_rates == 0) |
954 | hw->max_report_rates = hw->max_rates; | |
955 | ||
04ecd257 JB |
956 | local->rx_chains = 1; |
957 | ||
8318d78a JB |
958 | /* |
959 | * generic code guarantees at least one band, | |
960 | * set this very early because much code assumes | |
961 | * that hw.conf.channel is assigned | |
962 | */ | |
2a519311 | 963 | channels = 0; |
de95a54b | 964 | max_bitrates = 0; |
5ef2d41a | 965 | supp_ht = false; |
ba0afa2f | 966 | supp_vht = false; |
41cbb0f5 | 967 | supp_he = false; |
57fbcce3 | 968 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
8318d78a JB |
969 | struct ieee80211_supported_band *sband; |
970 | ||
971 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
972 | if (!sband) |
973 | continue; | |
fffa4b1c KB |
974 | |
975 | if (!dflt_chandef.chan) { | |
976 | cfg80211_chandef_create(&dflt_chandef, | |
977 | &sband->channels[0], | |
978 | NL80211_CHAN_NO_HT); | |
8318d78a | 979 | /* init channel we're on */ |
fffa4b1c KB |
980 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
981 | local->hw.conf.chandef = dflt_chandef; | |
982 | local->_oper_chandef = dflt_chandef; | |
983 | } | |
984 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 985 | } |
fffa4b1c | 986 | |
de95a54b JB |
987 | channels += sband->n_channels; |
988 | ||
989 | if (max_bitrates < sband->n_bitrates) | |
990 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 991 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 992 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 | 993 | |
41cbb0f5 LC |
994 | if (!supp_he) |
995 | supp_he = !!ieee80211_get_he_sta_cap(sband); | |
996 | ||
75e296e9 JB |
997 | /* HT, VHT, HE require QoS, thus >= 4 queues */ |
998 | if (WARN_ON(local->hw.queues < IEEE80211_NUM_ACS && | |
999 | (supp_ht || supp_vht || supp_he))) | |
1000 | return -EINVAL; | |
1001 | ||
43071d8f FF |
1002 | if (!sband->ht_cap.ht_supported) |
1003 | continue; | |
04ecd257 JB |
1004 | |
1005 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
43071d8f FF |
1006 | local->rx_chains = |
1007 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
1008 | local->rx_chains); | |
1009 | ||
1010 | /* no need to mask, SM_PS_DISABLED has all bits set */ | |
1011 | sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
1012 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
8318d78a | 1013 | } |
f0706e82 | 1014 | |
db3bdcb9 MP |
1015 | /* if low-level driver supports AP, we also support VLAN. |
1016 | * drivers advertising SW_CRYPTO_CONTROL should enable AP_VLAN | |
1017 | * based on their support to transmit SW encrypted packets. | |
1018 | */ | |
1019 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP) && | |
1020 | !ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL)) { | |
7527a782 JB |
1021 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
1022 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
1023 | } | |
f59ac048 LR |
1024 | |
1025 | /* mac80211 always supports monitor */ | |
7527a782 JB |
1026 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
1027 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
1028 | ||
55de908a | 1029 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
1030 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
1031 | const struct ieee80211_iface_combination *c; | |
1032 | int j; | |
1033 | ||
1034 | c = &hw->wiphy->iface_combinations[i]; | |
1035 | ||
8e621fc9 JB |
1036 | for (j = 0; j < c->n_limits; j++) |
1037 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
1038 | c->limits[j].max > 1) | |
1039 | return -EINVAL; | |
1040 | } | |
1041 | ||
5b0ec94f JB |
1042 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
1043 | sizeof(void *) * channels, GFP_KERNEL); | |
1044 | if (!local->int_scan_req) | |
1045 | return -ENOMEM; | |
1046 | ||
57fbcce3 | 1047 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
5b0ec94f JB |
1048 | if (!local->hw.wiphy->bands[band]) |
1049 | continue; | |
1050 | local->int_scan_req->rates[band] = (u32) -1; | |
1051 | } | |
1052 | ||
5eb5a52d JB |
1053 | #ifndef CONFIG_MAC80211_MESH |
1054 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
1055 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
1056 | #endif | |
1057 | ||
1570ca59 JC |
1058 | /* if the underlying driver supports mesh, mac80211 will (at least) |
1059 | * provide routing of mesh authentication frames to userspace */ | |
1060 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
1061 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
1062 | ||
a621fa4d JB |
1063 | /* mac80211 supports control port protocol changing */ |
1064 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
1065 | ||
30686bf7 | 1066 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 1067 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 1068 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 1069 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 1070 | if (hw->max_signal <= 0) { |
1071 | result = -EINVAL; | |
1072 | goto fail_wiphy_register; | |
1073 | } | |
1074 | } | |
77965c97 | 1075 | |
3e47bf1c AW |
1076 | /* Mac80211 and therefore all drivers using SW crypto only |
1077 | * are able to handle PTK rekeys and Extended Key ID. | |
622fce81 | 1078 | */ |
3e47bf1c | 1079 | if (!local->ops->set_key) { |
387bc002 AW |
1080 | wiphy_ext_feature_set(local->hw.wiphy, |
1081 | NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); | |
3e47bf1c AW |
1082 | wiphy_ext_feature_set(local->hw.wiphy, |
1083 | NL80211_EXT_FEATURE_EXT_KEY_ID); | |
1084 | } | |
387bc002 | 1085 | |
de95a54b JB |
1086 | /* |
1087 | * Calculate scan IE length -- we need this to alloc | |
1088 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 1089 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
1090 | * information -- SSID is the driver's responsibility. |
1091 | */ | |
dc9f48ce JM |
1092 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
1093 | 3 /* DS Params */; | |
5ef2d41a JB |
1094 | if (supp_ht) |
1095 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 1096 | |
d0e6c21a | 1097 | if (supp_vht) |
ba0afa2f | 1098 | local->scan_ies_len += |
d4950281 | 1099 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 1100 | |
41cbb0f5 LC |
1101 | /* HE cap element is variable in size - set len to allow max size */ |
1102 | /* | |
1103 | * TODO: 1 is added at the end of the calculation to accommodate for | |
1104 | * the temporary placing of the HE capabilities IE under EXT. | |
1105 | * Remove it once it is placed in the final place. | |
1106 | */ | |
1107 | if (supp_he) | |
1108 | local->scan_ies_len += | |
1109 | 2 + sizeof(struct ieee80211_he_cap_elem) + | |
1110 | sizeof(struct ieee80211_he_mcs_nss_supp) + | |
1111 | IEEE80211_HE_PPE_THRES_MAX_LEN + 1; | |
1112 | ||
de95a54b JB |
1113 | if (!local->ops->hw_scan) { |
1114 | /* For hw_scan, driver needs to set these up. */ | |
1115 | local->hw.wiphy->max_scan_ssids = 4; | |
1116 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1117 | } | |
1118 | ||
1119 | /* | |
1120 | * If the driver supports any scan IEs, then assume the | |
1121 | * limit includes the IEs mac80211 will add, otherwise | |
1122 | * leave it at zero and let the driver sort it out; we | |
1123 | * still pass our IEs to the driver but userspace will | |
1124 | * not be allowed to in that case. | |
1125 | */ | |
1126 | if (local->hw.wiphy->max_scan_ie_len) | |
1127 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
1128 | ||
2475b1cc MS |
1129 | WARN_ON(!ieee80211_cs_list_valid(local->hw.cipher_schemes, |
1130 | local->hw.n_cipher_schemes)); | |
1131 | ||
1132 | result = ieee80211_init_cipher_suites(local); | |
1133 | if (result < 0) | |
1134 | goto fail_wiphy_register; | |
25e47c18 | 1135 | |
21f83589 JB |
1136 | if (!local->ops->remain_on_channel) |
1137 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1138 | |
dfe018bf AN |
1139 | /* mac80211 based drivers don't support internal TDLS setup */ |
1140 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1141 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1142 | ||
e9a21949 | 1143 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1144 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1145 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1146 | ||
caf56338 SS |
1147 | /* mac80211 supports multi BSSID, if the driver supports it */ |
1148 | if (ieee80211_hw_check(&local->hw, SUPPORTS_MULTI_BSSID)) { | |
1149 | local->hw.wiphy->support_mbssid = true; | |
1150 | if (ieee80211_hw_check(&local->hw, | |
1151 | SUPPORTS_ONLY_HE_MULTI_BSSID)) | |
1152 | local->hw.wiphy->support_only_he_mbssid = true; | |
1153 | else | |
1154 | local->ext_capa[2] |= | |
1155 | WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1156 | } | |
1157 | ||
0d06d9ba AO |
1158 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM; |
1159 | ||
f0706e82 JB |
1160 | result = wiphy_register(local->hw.wiphy); |
1161 | if (result < 0) | |
2a519311 | 1162 | goto fail_wiphy_register; |
f0706e82 | 1163 | |
e2530083 JB |
1164 | /* |
1165 | * We use the number of queues for feature tests (QoS, HT) internally | |
1166 | * so restrict them appropriately. | |
1167 | */ | |
e2530083 JB |
1168 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1169 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1170 | |
42935eca | 1171 | local->workqueue = |
d8537548 | 1172 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1173 | if (!local->workqueue) { |
f0706e82 JB |
1174 | result = -ENOMEM; |
1175 | goto fail_workqueue; | |
1176 | } | |
1177 | ||
b306f453 JB |
1178 | /* |
1179 | * The hardware needs headroom for sending the frame, | |
1180 | * and we need some headroom for passing the frame to monitor | |
1181 | * interfaces, but never both at the same time. | |
1182 | */ | |
33ccad35 | 1183 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1184 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1185 | |
e9f207f0 JB |
1186 | debugfs_hw_add(local); |
1187 | ||
b446918b HS |
1188 | /* |
1189 | * if the driver doesn't specify a max listen interval we | |
1190 | * use 5 which should be a safe default | |
1191 | */ | |
ea95bba4 | 1192 | if (local->hw.max_listen_interval == 0) |
b446918b | 1193 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1194 | |
1195 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1196 | ||
ff616381 | 1197 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1198 | |
167e33f4 AB |
1199 | if (!local->hw.max_nan_de_entries) |
1200 | local->hw.max_nan_de_entries = IEEE80211_MAX_NAN_INSTANCE_ID; | |
1201 | ||
b4809e94 THJ |
1202 | if (!local->hw.weight_multiplier) |
1203 | local->hw.weight_multiplier = 1; | |
1204 | ||
4a65cc24 | 1205 | ieee80211_wep_init(local); |
d4c4a9a1 | 1206 | |
24d47300 KB |
1207 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1208 | ||
b57e6b56 MSS |
1209 | ieee80211_led_init(local); |
1210 | ||
dc8b274f THJ |
1211 | result = ieee80211_txq_setup_flows(local); |
1212 | if (result) | |
1213 | goto fail_flows; | |
1214 | ||
f0706e82 | 1215 | rtnl_lock(); |
f0706e82 | 1216 | |
830f9038 JB |
1217 | result = ieee80211_init_rate_ctrl_alg(local, |
1218 | hw->rate_control_algorithm); | |
f0706e82 | 1219 | if (result < 0) { |
0fb9a9ec JP |
1220 | wiphy_debug(local->hw.wiphy, |
1221 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1222 | goto fail_rate; |
1223 | } | |
1224 | ||
09b4a4fa JB |
1225 | if (local->rate_ctrl) { |
1226 | clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); | |
1227 | if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) | |
1228 | ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1229 | } | |
1230 | ||
1231 | /* | |
1232 | * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, | |
1233 | * or have it when we don't, copy the sband structure and set/clear it. | |
1234 | * This is necessary because rate scaling algorithms could be switched | |
1235 | * and have different support values. | |
1236 | * Print a message so that in the common case the reallocation can be | |
1237 | * avoided. | |
1238 | */ | |
1239 | BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); | |
1240 | for (band = 0; band < NUM_NL80211_BANDS; band++) { | |
1241 | struct ieee80211_supported_band *sband; | |
1242 | bool local_cap, ie_cap; | |
1243 | ||
1244 | local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1245 | ||
1246 | sband = local->hw.wiphy->bands[band]; | |
1247 | if (!sband || !sband->vht_cap.vht_supported) | |
1248 | continue; | |
1249 | ||
1250 | ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & | |
1251 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); | |
1252 | ||
1253 | if (local_cap == ie_cap) | |
1254 | continue; | |
1255 | ||
1256 | sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); | |
48f3b9e9 WY |
1257 | if (!sband) { |
1258 | result = -ENOMEM; | |
09b4a4fa | 1259 | goto fail_rate; |
48f3b9e9 | 1260 | } |
09b4a4fa JB |
1261 | |
1262 | wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", | |
1263 | band); | |
1264 | ||
1265 | sband->vht_cap.vht_mcs.tx_highest ^= | |
1266 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
1267 | ||
1268 | local->hw.wiphy->bands[band] = sband; | |
1269 | local->sband_allocated |= BIT(band); | |
1270 | } | |
1271 | ||
8dffff21 | 1272 | /* add one default STA interface if supported */ |
e27513fb | 1273 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1274 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
dd665d23 JB |
1275 | struct vif_params params = {0}; |
1276 | ||
6bab2e19 | 1277 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
dd665d23 | 1278 | NL80211_IFTYPE_STATION, ¶ms); |
8dffff21 | 1279 | if (result) |
0fb9a9ec JP |
1280 | wiphy_warn(local->hw.wiphy, |
1281 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1282 | } |
f0706e82 | 1283 | |
f0706e82 JB |
1284 | rtnl_unlock(); |
1285 | ||
26b36cfe | 1286 | #ifdef CONFIG_INET |
2b2c009e JO |
1287 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1288 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1289 | if (result) | |
1290 | goto fail_ifa; | |
26b36cfe | 1291 | #endif |
2b2c009e | 1292 | |
a65240c1 JB |
1293 | #if IS_ENABLED(CONFIG_IPV6) |
1294 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1295 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1296 | if (result) | |
1297 | goto fail_ifa6; | |
1298 | #endif | |
1299 | ||
f0706e82 JB |
1300 | return 0; |
1301 | ||
a65240c1 JB |
1302 | #if IS_ENABLED(CONFIG_IPV6) |
1303 | fail_ifa6: | |
93c08c32 | 1304 | #ifdef CONFIG_INET |
a65240c1 JB |
1305 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1306 | #endif | |
1307 | #endif | |
1308 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1309 | fail_ifa: |
93c08c32 | 1310 | #endif |
54330bf6 JB |
1311 | rtnl_lock(); |
1312 | rate_control_deinitialize(local); | |
10f644a4 | 1313 | ieee80211_remove_interfaces(local); |
10f644a4 | 1314 | fail_rate: |
f0706e82 | 1315 | rtnl_unlock(); |
dc8b274f | 1316 | fail_flows: |
6dd47d97 | 1317 | ieee80211_led_exit(local); |
42935eca | 1318 | destroy_workqueue(local->workqueue); |
10f644a4 | 1319 | fail_workqueue: |
f0706e82 | 1320 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 1321 | fail_wiphy_register: |
3ffc2a90 JB |
1322 | if (local->wiphy_ciphers_allocated) |
1323 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 1324 | kfree(local->int_scan_req); |
f0706e82 JB |
1325 | return result; |
1326 | } | |
1327 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1328 | ||
f0706e82 JB |
1329 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1330 | { | |
1331 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1332 | |
1333 | tasklet_kill(&local->tx_pending_tasklet); | |
1334 | tasklet_kill(&local->tasklet); | |
1335 | ||
26b36cfe | 1336 | #ifdef CONFIG_INET |
2b2c009e | 1337 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1338 | #endif |
a65240c1 JB |
1339 | #if IS_ENABLED(CONFIG_IPV6) |
1340 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1341 | #endif | |
10f644a4 | 1342 | |
f0706e82 JB |
1343 | rtnl_lock(); |
1344 | ||
79010420 JB |
1345 | /* |
1346 | * At this point, interface list manipulations are fine | |
1347 | * because the driver cannot be handing us frames any | |
1348 | * more and the tasklet is killed. | |
1349 | */ | |
75636525 | 1350 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1351 | |
f0706e82 JB |
1352 | rtnl_unlock(); |
1353 | ||
aaa016cc | 1354 | cancel_delayed_work_sync(&local->roc_work); |
258086a4 | 1355 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1356 | cancel_work_sync(&local->reconfig_filter); |
c8ff71e6 | 1357 | cancel_work_sync(&local->tdls_chsw_work); |
18db594a | 1358 | flush_work(&local->sched_scan_stopped_work); |
4a199068 | 1359 | flush_work(&local->radar_detected_work); |
3ac64bee | 1360 | |
f0706e82 | 1361 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1362 | rate_control_deinitialize(local); |
1363 | ||
f64f9e71 JP |
1364 | if (skb_queue_len(&local->skb_queue) || |
1365 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1366 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1367 | skb_queue_purge(&local->skb_queue); |
1368 | skb_queue_purge(&local->skb_queue_unreliable); | |
c8ff71e6 | 1369 | skb_queue_purge(&local->skb_queue_tdls_chsw); |
f0706e82 | 1370 | |
42935eca | 1371 | destroy_workqueue(local->workqueue); |
f0706e82 | 1372 | wiphy_unregister(local->hw.wiphy); |
f0706e82 | 1373 | ieee80211_led_exit(local); |
5ba63533 | 1374 | kfree(local->int_scan_req); |
f0706e82 JB |
1375 | } |
1376 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1377 | ||
a729cff8 JB |
1378 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1379 | { | |
1380 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1381 | kfree_skb(p); | |
1382 | return 0; | |
1383 | } | |
1384 | ||
f0706e82 JB |
1385 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1386 | { | |
1387 | struct ieee80211_local *local = hw_to_local(hw); | |
09b4a4fa | 1388 | enum nl80211_band band; |
f0706e82 | 1389 | |
c771c9d8 | 1390 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1391 | mutex_destroy(&local->mtx); |
c771c9d8 | 1392 | |
3ffc2a90 JB |
1393 | if (local->wiphy_ciphers_allocated) |
1394 | kfree(local->hw.wiphy->cipher_suites); | |
1395 | ||
a729cff8 JB |
1396 | idr_for_each(&local->ack_status_frames, |
1397 | ieee80211_free_ack_frame, NULL); | |
1398 | idr_destroy(&local->ack_status_frames); | |
1399 | ||
54330bf6 JB |
1400 | sta_info_stop(local); |
1401 | ||
8d5c2585 JB |
1402 | ieee80211_free_led_names(local); |
1403 | ||
09b4a4fa JB |
1404 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1405 | if (!(local->sband_allocated & BIT(band))) | |
1406 | continue; | |
1407 | kfree(local->hw.wiphy->bands[band]); | |
1408 | } | |
1409 | ||
f0706e82 JB |
1410 | wiphy_free(local->hw.wiphy); |
1411 | } | |
1412 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1413 | ||
f0706e82 JB |
1414 | static int __init ieee80211_init(void) |
1415 | { | |
1416 | struct sk_buff *skb; | |
1417 | int ret; | |
1418 | ||
e039fa4a JB |
1419 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1420 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1421 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1422 | |
cccf129f FF |
1423 | ret = rc80211_minstrel_init(); |
1424 | if (ret) | |
1425 | return ret; | |
1426 | ||
47846c9b JB |
1427 | ret = ieee80211_iface_init(); |
1428 | if (ret) | |
1429 | goto err_netdev; | |
e9f207f0 | 1430 | |
f0706e82 | 1431 | return 0; |
47846c9b | 1432 | err_netdev: |
47846c9b JB |
1433 | rc80211_minstrel_exit(); |
1434 | ||
1435 | return ret; | |
f0706e82 JB |
1436 | } |
1437 | ||
f0706e82 JB |
1438 | static void __exit ieee80211_exit(void) |
1439 | { | |
cccf129f | 1440 | rc80211_minstrel_exit(); |
ac71c691 | 1441 | |
bf7cd94d | 1442 | ieee80211s_stop(); |
902acc78 | 1443 | |
47846c9b | 1444 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1445 | |
1446 | rcu_barrier(); | |
f0706e82 JB |
1447 | } |
1448 | ||
1449 | ||
ca9938fe | 1450 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1451 | module_exit(ieee80211_exit); |
1452 | ||
1453 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1454 | MODULE_LICENSE("GPL"); |