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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 |
23a5f0af | 8 | * Copyright (C) 2018-2022 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 | ||
873b1cf6 JM |
67 | if (local->rx_mcast_action_reg) |
68 | new_flags |= FIF_MCAST_ACTION; | |
69 | ||
3ac64bee | 70 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
71 | changed_flags = local->filter_flags ^ new_flags; |
72 | ||
22bedad3 | 73 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
74 | spin_unlock_bh(&local->filter_lock); |
75 | ||
4150c572 JB |
76 | /* be a bit nasty */ |
77 | new_flags |= (1<<31); | |
78 | ||
3ac64bee | 79 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
80 | |
81 | WARN_ON(new_flags & (1<<31)); | |
82 | ||
83 | local->filter_flags = new_flags & ~(1<<31); | |
84 | } | |
85 | ||
3ac64bee JB |
86 | static void ieee80211_reconfig_filter(struct work_struct *work) |
87 | { | |
88 | struct ieee80211_local *local = | |
89 | container_of(work, struct ieee80211_local, reconfig_filter); | |
90 | ||
91 | ieee80211_configure_filter(local); | |
92 | } | |
93 | ||
55de908a | 94 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
b2c258fb | 95 | { |
1ea6f9c0 | 96 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 97 | struct cfg80211_chan_def chandef = {}; |
55de908a | 98 | u32 changed = 0; |
e8975581 | 99 | int power; |
ffd2778b | 100 | u32 offchannel_flag; |
f0706e82 | 101 | |
ffd2778b | 102 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 103 | |
7ca15a0a SW |
104 | if (local->scan_chandef.chan) { |
105 | chandef = local->scan_chandef; | |
b23b025f | 106 | } else if (local->tmp_channel) { |
675a0b04 KB |
107 | chandef.chan = local->tmp_channel; |
108 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
109 | chandef.center_freq1 = chandef.chan->center_freq; | |
b6011960 | 110 | chandef.freq1_offset = chandef.chan->freq_offset; |
675a0b04 KB |
111 | } else |
112 | chandef = local->_oper_chandef; | |
113 | ||
114 | WARN(!cfg80211_chandef_valid(&chandef), | |
b6011960 TP |
115 | "control:%d.%03d MHz width:%d center: %d.%03d/%d MHz", |
116 | chandef.chan->center_freq, chandef.chan->freq_offset, | |
117 | chandef.width, chandef.center_freq1, chandef.freq1_offset, | |
118 | chandef.center_freq2); | |
675a0b04 KB |
119 | |
120 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) | |
b23b025f BG |
121 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
122 | else | |
123 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
124 | ||
ffd2778b | 125 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 126 | |
675a0b04 KB |
127 | if (offchannel_flag || |
128 | !cfg80211_chandef_identical(&local->hw.conf.chandef, | |
129 | &local->_oper_chandef)) { | |
130 | local->hw.conf.chandef = chandef; | |
e8975581 JB |
131 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
132 | } | |
8318d78a | 133 | |
0f78231b JB |
134 | if (!conf_is_ht(&local->hw.conf)) { |
135 | /* | |
136 | * mac80211.h documents that this is only valid | |
137 | * when the channel is set to an HT type, and | |
138 | * that otherwise STATIC is used. | |
139 | */ | |
140 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
141 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
142 | local->hw.conf.smps_mode = local->smps_mode; | |
143 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
144 | } | |
145 | ||
0430c883 | 146 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 147 | |
1ea6f9c0 JB |
148 | rcu_read_lock(); |
149 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
d0a9123e | 150 | if (!rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf)) |
1ea6f9c0 | 151 | continue; |
764152ff FF |
152 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
153 | continue; | |
db6d9e9e BG |
154 | if (sdata->vif.bss_conf.txpower == INT_MIN) |
155 | continue; | |
1ea6f9c0 JB |
156 | power = min(power, sdata->vif.bss_conf.txpower); |
157 | } | |
158 | rcu_read_unlock(); | |
a8302de9 | 159 | |
e8975581 JB |
160 | if (local->hw.conf.power_level != power) { |
161 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
162 | local->hw.conf.power_level = power; | |
163 | } | |
b2c258fb | 164 | |
55de908a JB |
165 | return changed; |
166 | } | |
167 | ||
168 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) | |
169 | { | |
170 | int ret = 0; | |
171 | ||
172 | might_sleep(); | |
173 | ||
174 | if (!local->use_chanctx) | |
175 | changed |= ieee80211_hw_conf_chan(local); | |
176 | else | |
177 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | | |
178 | IEEE80211_CONF_CHANGE_POWER); | |
179 | ||
e8975581 | 180 | if (changed && local->open_count) { |
24487981 | 181 | ret = drv_config(local, changed); |
d73782fd | 182 | /* |
447107fb | 183 | * Goal: |
d73782fd JB |
184 | * HW reconfiguration should never fail, the driver has told |
185 | * us what it can support so it should live up to that promise. | |
447107fb RC |
186 | * |
187 | * Current status: | |
188 | * rfkill is not integrated with mac80211 and a | |
189 | * configuration command can thus fail if hardware rfkill | |
190 | * is enabled | |
191 | * | |
192 | * FIXME: integrate rfkill with mac80211 and then add this | |
193 | * WARN_ON() back | |
194 | * | |
d73782fd | 195 | */ |
447107fb | 196 | /* WARN_ON(ret); */ |
d73782fd | 197 | } |
f0706e82 | 198 | |
b2c258fb JB |
199 | return ret; |
200 | } | |
f0706e82 | 201 | |
471b3efd JB |
202 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
203 | u32 changed) | |
d9430a32 | 204 | { |
471b3efd JB |
205 | struct ieee80211_local *local = sdata->local; |
206 | ||
990baec0 | 207 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
471b3efd JB |
208 | return; |
209 | ||
12375ef9 | 210 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
211 | } |
212 | ||
f698d856 | 213 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 214 | { |
bda3933a JB |
215 | sdata->vif.bss_conf.use_cts_prot = false; |
216 | sdata->vif.bss_conf.use_short_preamble = false; | |
217 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
218 | return BSS_CHANGED_ERP_CTS_PROT | |
219 | BSS_CHANGED_ERP_PREAMBLE | | |
220 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
221 | } |
222 | ||
da1cad73 | 223 | static void ieee80211_tasklet_handler(struct tasklet_struct *t) |
f0706e82 | 224 | { |
da1cad73 | 225 | struct ieee80211_local *local = from_tasklet(local, t, tasklet); |
f0706e82 | 226 | struct sk_buff *skb; |
f0706e82 JB |
227 | |
228 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
229 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
230 | switch (skb->pkt_type) { | |
231 | case IEEE80211_RX_MSG: | |
51fb61e7 | 232 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
233 | * netstack. */ |
234 | skb->pkt_type = 0; | |
005e472b | 235 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
236 | break; |
237 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 238 | skb->pkt_type = 0; |
005e472b | 239 | ieee80211_tx_status(&local->hw, skb); |
f0706e82 | 240 | break; |
f4ea83dd | 241 | default: |
5e3f3089 LF |
242 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
243 | skb->pkt_type); | |
f0706e82 JB |
244 | dev_kfree_skb(skb); |
245 | break; | |
246 | } | |
247 | } | |
248 | } | |
249 | ||
f2753ddb JB |
250 | static void ieee80211_restart_work(struct work_struct *work) |
251 | { | |
252 | struct ieee80211_local *local = | |
253 | container_of(work, struct ieee80211_local, restart_work); | |
ab499db8 | 254 | struct ieee80211_sub_if_data *sdata; |
f5baf287 | 255 | int ret; |
f2753ddb | 256 | |
bc86863d SG |
257 | /* wait for scan work complete */ |
258 | flush_workqueue(local->workqueue); | |
2bc533bd | 259 | flush_work(&local->sched_scan_stopped_work); |
45daaa13 IP |
260 | flush_work(&local->radar_detected_work); |
261 | ||
262 | rtnl_lock(); | |
276e189f JB |
263 | /* we might do interface manipulations, so need both */ |
264 | wiphy_lock(local->hw.wiphy); | |
bc86863d | 265 | |
d43c6b6e DS |
266 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
267 | "%s called with hardware scan in progress\n", __func__); | |
bc86863d | 268 | |
f3ffb6c3 EG |
269 | list_for_each_entry(sdata, &local->interfaces, list) { |
270 | /* | |
271 | * XXX: there may be more work for other vif types and even | |
272 | * for station mode: a good thing would be to run most of | |
273 | * the iface type's dependent _stop (ieee80211_mg_stop, | |
274 | * ieee80211_ibss_stop) etc... | |
275 | * For now, fix only the specific bug that was seen: race | |
276 | * between csa_connection_drop_work and us. | |
277 | */ | |
278 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { | |
279 | /* | |
280 | * This worker is scheduled from the iface worker that | |
281 | * runs on mac80211's workqueue, so we can't be | |
282 | * scheduling this worker after the cancel right here. | |
283 | * The exception is ieee80211_chswitch_done. | |
284 | * Then we can have a race... | |
285 | */ | |
286 | cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work); | |
d0a9123e | 287 | if (sdata->vif.bss_conf.csa_active) { |
7dd231eb NG |
288 | sdata_lock(sdata); |
289 | ieee80211_sta_connection_lost(sdata, | |
53da4c45 JB |
290 | WLAN_REASON_UNSPECIFIED, |
291 | false); | |
7dd231eb NG |
292 | sdata_unlock(sdata); |
293 | } | |
f3ffb6c3 | 294 | } |
ab499db8 | 295 | flush_delayed_work(&sdata->dec_tailroom_needed_wk); |
f3ffb6c3 | 296 | } |
4136c422 | 297 | ieee80211_scan_cancel(local); |
470f4d61 EP |
298 | |
299 | /* make sure any new ROC will consider local->in_reconfig */ | |
300 | flush_delayed_work(&local->roc_work); | |
301 | flush_work(&local->hw_roc_done); | |
302 | ||
2316380f SS |
303 | /* wait for all packet processing to be done */ |
304 | synchronize_net(); | |
305 | ||
f5baf287 | 306 | ret = ieee80211_reconfig(local); |
a05829a7 | 307 | wiphy_unlock(local->hw.wiphy); |
f5baf287 JB |
308 | |
309 | if (ret) | |
310 | cfg80211_shutdown_all_interfaces(local->hw.wiphy); | |
311 | ||
f2753ddb JB |
312 | rtnl_unlock(); |
313 | } | |
314 | ||
315 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
316 | { | |
317 | struct ieee80211_local *local = hw_to_local(hw); | |
318 | ||
b5878a2d JB |
319 | trace_api_restart_hw(local); |
320 | ||
b196d031 MB |
321 | wiphy_info(hw->wiphy, |
322 | "Hardware restart was requested\n"); | |
323 | ||
18145c69 | 324 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 | 325 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
326 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
327 | false); | |
f2753ddb | 328 | |
04800ada AN |
329 | /* |
330 | * Stop all Rx during the reconfig. We don't want state changes | |
331 | * or driver callbacks while this is in progress. | |
332 | */ | |
333 | local->in_reconfig = true; | |
334 | barrier(); | |
335 | ||
43d6df00 | 336 | queue_work(system_freezable_wq, &local->restart_work); |
f2753ddb JB |
337 | } |
338 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
339 | ||
26b36cfe | 340 | #ifdef CONFIG_INET |
2b2c009e JO |
341 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
342 | unsigned long data, void *arg) | |
343 | { | |
344 | struct in_ifaddr *ifa = arg; | |
345 | struct ieee80211_local *local = | |
346 | container_of(nb, struct ieee80211_local, | |
347 | ifa_notifier); | |
348 | struct net_device *ndev = ifa->ifa_dev->dev; | |
349 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 350 | struct in_device *idev; |
2b2c009e | 351 | struct ieee80211_sub_if_data *sdata; |
f276e20b | 352 | struct ieee80211_vif_cfg *vif_cfg; |
2b2c009e | 353 | struct ieee80211_if_managed *ifmgd; |
68542962 | 354 | int c = 0; |
2b2c009e JO |
355 | |
356 | /* Make sure it's our interface that got changed */ | |
357 | if (!wdev) | |
358 | return NOTIFY_DONE; | |
359 | ||
360 | if (wdev->wiphy != local->hw.wiphy) | |
361 | return NOTIFY_DONE; | |
362 | ||
2b2c009e | 363 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
f276e20b | 364 | vif_cfg = &sdata->vif.cfg; |
2b2c009e JO |
365 | |
366 | /* ARP filtering is only supported in managed mode */ | |
367 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
368 | return NOTIFY_DONE; | |
369 | ||
95ae6b22 | 370 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
371 | if (!idev) |
372 | return NOTIFY_DONE; | |
373 | ||
2b2c009e | 374 | ifmgd = &sdata->u.mgd; |
8d61ffa5 | 375 | sdata_lock(sdata); |
68542962 | 376 | |
f276e20b | 377 | /* Copy the addresses to the vif config list */ |
2638eb8b | 378 | ifa = rtnl_dereference(idev->ifa_list); |
0f19b41e JB |
379 | while (ifa) { |
380 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
f276e20b | 381 | vif_cfg->arp_addr_list[c] = ifa->ifa_address; |
2638eb8b | 382 | ifa = rtnl_dereference(ifa->ifa_next); |
68542962 JO |
383 | c++; |
384 | } | |
385 | ||
f276e20b | 386 | vif_cfg->arp_addr_cnt = c; |
68542962 | 387 | |
53d69c39 | 388 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 389 | if (ifmgd->associated) |
68542962 JO |
390 | ieee80211_bss_info_change_notify(sdata, |
391 | BSS_CHANGED_ARP_FILTER); | |
68542962 | 392 | |
8d61ffa5 | 393 | sdata_unlock(sdata); |
2b2c009e | 394 | |
8bd811aa | 395 | return NOTIFY_OK; |
2b2c009e | 396 | } |
26b36cfe | 397 | #endif |
2b2c009e | 398 | |
a65240c1 JB |
399 | #if IS_ENABLED(CONFIG_IPV6) |
400 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
401 | unsigned long data, void *arg) | |
402 | { | |
403 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
404 | struct inet6_dev *idev = ifa->idev; | |
405 | struct net_device *ndev = ifa->idev->dev; | |
406 | struct ieee80211_local *local = | |
407 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
408 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
409 | struct ieee80211_sub_if_data *sdata; | |
410 | ||
411 | /* Make sure it's our interface that got changed */ | |
412 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
413 | return NOTIFY_DONE; | |
414 | ||
415 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
416 | ||
417 | /* | |
418 | * For now only support station mode. This is mostly because | |
419 | * doing AP would have to handle AP_VLAN in some way ... | |
420 | */ | |
421 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
422 | return NOTIFY_DONE; | |
423 | ||
424 | drv_ipv6_addr_change(local, sdata, idev); | |
425 | ||
8bd811aa | 426 | return NOTIFY_OK; |
a65240c1 JB |
427 | } |
428 | #endif | |
429 | ||
2e161f78 JB |
430 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
431 | static const struct ieee80211_txrx_stypes | |
432 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
433 | [NL80211_IFTYPE_ADHOC] = { | |
434 | .tx = 0xffff, | |
3bfda62c WH |
435 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
436 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
437 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
438 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
439 | }, |
440 | [NL80211_IFTYPE_STATION] = { | |
441 | .tx = 0xffff, | |
ff74c51e IP |
442 | /* |
443 | * To support Pre Association Security Negotiation (PASN) while | |
444 | * already associated to one AP, allow user space to register to | |
445 | * Rx authentication frames, so that the user space logic would | |
446 | * be able to receive/handle authentication frames from a | |
447 | * different AP as part of PASN. | |
448 | * It is expected that user space would intelligently register | |
449 | * for Rx authentication frames, i.e., only when PASN is used | |
450 | * and configure a match filter only for PASN authentication | |
451 | * algorithm, as otherwise the MLME functionality of mac80211 | |
452 | * would be broken. | |
453 | */ | |
2e161f78 | 454 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
ff74c51e | 455 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
2e161f78 JB |
456 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
457 | }, | |
458 | [NL80211_IFTYPE_AP] = { | |
459 | .tx = 0xffff, | |
460 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
461 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
462 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
463 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
464 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
465 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
466 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
467 | }, | |
468 | [NL80211_IFTYPE_AP_VLAN] = { | |
469 | /* copy AP */ | |
470 | .tx = 0xffff, | |
471 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
472 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
473 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
474 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
475 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
476 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
477 | BIT(IEEE80211_STYPE_ACTION >> 4), |
478 | }, | |
479 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
480 | .tx = 0xffff, | |
481 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
482 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
483 | }, | |
484 | [NL80211_IFTYPE_P2P_GO] = { | |
485 | .tx = 0xffff, | |
486 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
487 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
488 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
489 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
490 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
491 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
492 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
493 | }, | |
c7108a71 JC |
494 | [NL80211_IFTYPE_MESH_POINT] = { |
495 | .tx = 0xffff, | |
71839121 JC |
496 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
497 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
498 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 499 | }, |
f142c6b9 JB |
500 | [NL80211_IFTYPE_P2P_DEVICE] = { |
501 | .tx = 0xffff, | |
502 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
503 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
504 | }, | |
2e161f78 JB |
505 | }; |
506 | ||
ef96a842 BG |
507 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
508 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
509 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
510 | ||
511 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
512 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 513 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 514 | IEEE80211_HT_CAP_SGI_40 | |
d9bb4108 SM |
515 | IEEE80211_HT_CAP_TX_STBC | |
516 | IEEE80211_HT_CAP_RX_STBC | | |
9a07bf50 JM |
517 | IEEE80211_HT_CAP_LDPC_CODING | |
518 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
519 | .mcs = { |
520 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
521 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
522 | }, | |
523 | }; | |
524 | ||
dd5ecfea JB |
525 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
526 | .vht_cap_info = | |
527 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
528 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
529 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
67d1ba8a | 530 | IEEE80211_VHT_CAP_RXSTBC_MASK | |
dd5ecfea JB |
531 | IEEE80211_VHT_CAP_TXSTBC | |
532 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
533 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
534 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
535 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
536 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
537 | .supp_mcs = { | |
538 | .rx_mcs_map = cpu_to_le16(~0), | |
539 | .tx_mcs_map = cpu_to_le16(~0), | |
540 | }, | |
541 | }; | |
542 | ||
ad28757e BG |
543 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
544 | const struct ieee80211_ops *ops, | |
545 | const char *requested_name) | |
f0706e82 | 546 | { |
f0706e82 | 547 | struct ieee80211_local *local; |
96f5e66e | 548 | int priv_size, i; |
f0706e82 | 549 | struct wiphy *wiphy; |
fe57d9f5 | 550 | bool use_chanctx; |
f0706e82 | 551 | |
c0af0734 JB |
552 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
553 | !ops->add_interface || !ops->remove_interface || | |
554 | !ops->configure_filter)) | |
555 | return NULL; | |
556 | ||
f09603a2 JB |
557 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
558 | return NULL; | |
559 | ||
e269d860 JB |
560 | /* check all or no channel context operations exist */ |
561 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
562 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
563 | !!ops->unassign_vif_chanctx; | |
564 | if (WARN_ON(i != 0 && i != 5)) | |
565 | return NULL; | |
fe57d9f5 | 566 | use_chanctx = i == 5; |
e269d860 | 567 | |
f0706e82 JB |
568 | /* Ensure 32-byte alignment of our private data and hw private data. |
569 | * We use the wiphy priv data for both our ieee80211_local and for | |
570 | * the driver's private data | |
571 | * | |
572 | * In memory it'll be like this: | |
573 | * | |
574 | * +-------------------------+ | |
575 | * | struct wiphy | | |
576 | * +-------------------------+ | |
577 | * | struct ieee80211_local | | |
578 | * +-------------------------+ | |
579 | * | driver's private data | | |
580 | * +-------------------------+ | |
581 | * | |
582 | */ | |
1ce8e7b5 | 583 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 584 | |
ad28757e | 585 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
586 | |
587 | if (!wiphy) | |
588 | return NULL; | |
589 | ||
2e161f78 JB |
590 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
591 | ||
207aba60 JB |
592 | wiphy->privid = mac80211_wiphy_privid; |
593 | ||
9bc383de JB |
594 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
595 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 596 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 597 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
598 | WIPHY_FLAG_OFFCHAN_TX; |
599 | ||
8fa180bb | 600 | if (!use_chanctx || ops->remain_on_channel) |
81ddbb5c | 601 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
207aba60 | 602 | |
b292219f JB |
603 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
604 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 605 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 606 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 607 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
608 | NL80211_FEATURE_USERSPACE_MPM | |
609 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
f3ca52aa | 610 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_FILS_STA); |
018f6fbf DK |
611 | wiphy_ext_feature_set(wiphy, |
612 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211); | |
7f3f96ce MT |
613 | wiphy_ext_feature_set(wiphy, |
614 | NL80211_EXT_FEATURE_CONTROL_PORT_NO_PREAUTH); | |
a7528198 MT |
615 | wiphy_ext_feature_set(wiphy, |
616 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_TX_STATUS); | |
2032f3b2 TP |
617 | wiphy_ext_feature_set(wiphy, |
618 | NL80211_EXT_FEATURE_SCAN_FREQ_KHZ); | |
a729cff8 | 619 | |
b9771d41 | 620 | if (!ops->hw_scan) { |
5c95b940 AQ |
621 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
622 | NL80211_FEATURE_AP_SCAN; | |
b9771d41 JB |
623 | /* |
624 | * if the driver behaves correctly using the probe request | |
625 | * (template) from mac80211, then both of these should be | |
626 | * supported even with hw scan - but let drivers opt in. | |
627 | */ | |
628 | wiphy_ext_feature_set(wiphy, | |
629 | NL80211_EXT_FEATURE_SCAN_RANDOM_SN); | |
630 | wiphy_ext_feature_set(wiphy, | |
631 | NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); | |
632 | } | |
cd2bb512 | 633 | |
207aba60 JB |
634 | if (!ops->set_key) |
635 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 636 | |
2fe4a29a THJ |
637 | if (ops->wake_tx_queue) |
638 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_TXQS); | |
639 | ||
f278ce4f EG |
640 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_RRM); |
641 | ||
0c1ad2ca | 642 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
643 | |
644 | local = wiphy_priv(wiphy); | |
de95a54b | 645 | |
7bedd0cf JB |
646 | if (sta_info_init(local)) |
647 | goto err_free; | |
648 | ||
f0706e82 JB |
649 | local->hw.wiphy = wiphy; |
650 | ||
1ce8e7b5 | 651 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
652 | |
653 | local->ops = ops; | |
fe57d9f5 | 654 | local->use_chanctx = use_chanctx; |
f0706e82 | 655 | |
70e53669 WG |
656 | /* |
657 | * We need a bit of data queued to build aggregates properly, so | |
658 | * instruct the TCP stack to allow more than a single ms of data | |
659 | * to be queued in the stack. The value is a bit-shift of 1 | |
5c14a4d0 | 660 | * second, so 7 is ~8ms of queued data. Only affects local TCP |
70e53669 WG |
661 | * sockets. |
662 | * This is the default, anyhow - drivers may need to override it | |
663 | * for local reasons (longer buffers, longer completion time, or | |
664 | * similar). | |
665 | */ | |
5c14a4d0 | 666 | local->hw.tx_sk_pacing_shift = 7; |
70e53669 | 667 | |
e6a9854b JB |
668 | /* set up some defaults */ |
669 | local->hw.queues = 1; | |
670 | local->hw.max_rates = 1; | |
78be49ec | 671 | local->hw.max_report_rates = 0; |
b8042b3d JB |
672 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; |
673 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; | |
3a25a8c8 | 674 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
675 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
676 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
677 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
678 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
679 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
680 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
681 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
682 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
683 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
06354665 | 684 | local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; |
1ea6f9c0 | 685 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 686 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 687 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 688 | |
e9a21949 LC |
689 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
690 | ||
691 | wiphy->extended_capabilities = local->ext_capa; | |
692 | wiphy->extended_capabilities_mask = local->ext_capa; | |
693 | wiphy->extended_capabilities_len = | |
694 | ARRAY_SIZE(local->ext_capa); | |
695 | ||
79010420 | 696 | INIT_LIST_HEAD(&local->interfaces); |
f64331d5 | 697 | INIT_LIST_HEAD(&local->mon_list); |
2f787b0b YH |
698 | |
699 | __hw_addr_init(&local->mc_list); | |
700 | ||
c771c9d8 | 701 | mutex_init(&local->iflist_mtx); |
a1699b75 | 702 | mutex_init(&local->mtx); |
f0706e82 | 703 | |
ad0e2b5a | 704 | mutex_init(&local->key_mtx); |
3b8d81e0 | 705 | spin_lock_init(&local->filter_lock); |
f9e124fb | 706 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
707 | spin_lock_init(&local->queue_stop_reason_lock); |
708 | ||
18667600 | 709 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
2433647b THJ |
710 | struct airtime_sched_info *air_sched = &local->airtime[i]; |
711 | ||
712 | air_sched->active_txqs = RB_ROOT_CACHED; | |
713 | INIT_LIST_HEAD(&air_sched->active_list); | |
714 | spin_lock_init(&air_sched->lock); | |
715 | air_sched->aql_txq_limit_low = IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L; | |
716 | air_sched->aql_txq_limit_high = | |
3ace10f5 | 717 | IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H; |
18667600 | 718 | } |
3ace10f5 | 719 | |
911bde0f | 720 | local->airtime_flags = AIRTIME_USE_TX | AIRTIME_USE_RX; |
3ace10f5 KY |
721 | local->aql_threshold = IEEE80211_AQL_THRESHOLD; |
722 | atomic_set(&local->aql_total_pending_airtime, 0); | |
18667600 | 723 | |
d01a1e65 MK |
724 | INIT_LIST_HEAD(&local->chanctx_list); |
725 | mutex_init(&local->chanctx_mtx); | |
726 | ||
c2b13452 | 727 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 728 | |
f2753ddb JB |
729 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
730 | ||
164eb02d SW |
731 | INIT_WORK(&local->radar_detected_work, |
732 | ieee80211_dfs_radar_detected_work); | |
733 | ||
3ac64bee | 734 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 735 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 736 | |
520eb820 KV |
737 | INIT_WORK(&local->dynamic_ps_enable_work, |
738 | ieee80211_dynamic_ps_enable_work); | |
739 | INIT_WORK(&local->dynamic_ps_disable_work, | |
740 | ieee80211_dynamic_ps_disable_work); | |
34f11cd3 | 741 | timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); |
520eb820 | 742 | |
85a9994a LC |
743 | INIT_WORK(&local->sched_scan_stopped_work, |
744 | ieee80211_sched_scan_stopped_work); | |
745 | ||
a729cff8 JB |
746 | spin_lock_init(&local->ack_status_lock); |
747 | idr_init(&local->ack_status_frames); | |
a729cff8 | 748 | |
a6a67db2 | 749 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 750 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
751 | atomic_set(&local->agg_queue_stop[i], 0); |
752 | } | |
da1cad73 | 753 | tasklet_setup(&local->tx_pending_tasklet, ieee80211_tx_pending); |
f0706e82 | 754 | |
21a5d4c3 | 755 | if (ops->wake_tx_queue) |
da1cad73 | 756 | tasklet_setup(&local->wake_txqs_tasklet, ieee80211_wake_txqs); |
21a5d4c3 | 757 | |
da1cad73 | 758 | tasklet_setup(&local->tasklet, ieee80211_tasklet_handler); |
f0706e82 JB |
759 | |
760 | skb_queue_head_init(&local->skb_queue); | |
761 | skb_queue_head_init(&local->skb_queue_unreliable); | |
762 | ||
8d5c2585 | 763 | ieee80211_alloc_led_names(local); |
fe67c913 | 764 | |
2eb278e0 | 765 | ieee80211_roc_setup(local); |
21f83589 | 766 | |
99ee7cae JB |
767 | local->hw.radiotap_timestamp.units_pos = -1; |
768 | local->hw.radiotap_timestamp.accuracy = -1; | |
769 | ||
005e472b | 770 | return &local->hw; |
7bedd0cf JB |
771 | err_free: |
772 | wiphy_free(wiphy); | |
773 | return NULL; | |
f0706e82 | 774 | } |
ad28757e | 775 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 776 | |
2475b1cc | 777 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 778 | { |
5fdb3735 | 779 | bool have_wep = !fips_enabled; /* FIPS does not permit the use of RC4 */ |
30686bf7 | 780 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
23a5f0af | 781 | int r = 0, w = 0; |
2475b1cc | 782 | u32 *suites; |
25e47c18 | 783 | static const u32 cipher_suites[] = { |
5daa8a8e | 784 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
785 | WLAN_CIPHER_SUITE_WEP40, |
786 | WLAN_CIPHER_SUITE_WEP104, | |
787 | WLAN_CIPHER_SUITE_TKIP, | |
788 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 789 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
790 | WLAN_CIPHER_SUITE_GCMP, |
791 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
792 | |
793 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
794 | WLAN_CIPHER_SUITE_AES_CMAC, |
795 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
796 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
797 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 798 | }; |
8318d78a | 799 | |
30686bf7 | 800 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
801 | local->hw.wiphy->cipher_suites) { |
802 | /* If the driver advertises, or doesn't support SW crypto, | |
803 | * we only need to remove WEP if necessary. | |
804 | */ | |
805 | if (have_wep) | |
806 | return 0; | |
807 | ||
808 | /* well if it has _no_ ciphers ... fine */ | |
809 | if (!local->hw.wiphy->n_cipher_suites) | |
810 | return 0; | |
811 | ||
812 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
813 | suites = kmemdup(local->hw.wiphy->cipher_suites, | |
814 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
815 | GFP_KERNEL); | |
816 | if (!suites) | |
817 | return -ENOMEM; | |
2475b1cc | 818 | |
fa7e1fbc JB |
819 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
820 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
821 | ||
822 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
823 | suite == WLAN_CIPHER_SUITE_WEP104) | |
824 | continue; | |
825 | suites[w++] = suite; | |
826 | } | |
23a5f0af JB |
827 | } else { |
828 | /* assign the (software supported and perhaps offloaded) | |
829 | * cipher suites | |
fa7e1fbc | 830 | */ |
2475b1cc MS |
831 | local->hw.wiphy->cipher_suites = cipher_suites; |
832 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
833 | ||
834 | if (!have_mfp) | |
8ade538b | 835 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
836 | |
837 | if (!have_wep) { | |
838 | local->hw.wiphy->cipher_suites += 2; | |
839 | local->hw.wiphy->n_cipher_suites -= 2; | |
840 | } | |
841 | ||
fa7e1fbc | 842 | /* not dynamically allocated, so just return */ |
2475b1cc | 843 | return 0; |
2475b1cc MS |
844 | } |
845 | ||
846 | local->hw.wiphy->cipher_suites = suites; | |
847 | local->hw.wiphy->n_cipher_suites = w; | |
848 | local->wiphy_ciphers_allocated = true; | |
849 | ||
850 | return 0; | |
851 | } | |
852 | ||
853 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
854 | { | |
855 | struct ieee80211_local *local = hw_to_local(hw); | |
856 | int result, i; | |
57fbcce3 | 857 | enum nl80211_band band; |
2475b1cc | 858 | int channels, max_bitrates; |
820acc81 | 859 | bool supp_ht, supp_vht, supp_he, supp_eht; |
2475b1cc MS |
860 | struct cfg80211_chan_def dflt_chandef = {}; |
861 | ||
30686bf7 | 862 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
863 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
864 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
865 | return -EINVAL; | |
866 | ||
a7a6bdd0 AN |
867 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
868 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
869 | !local->ops->tdls_cancel_channel_switch || |
870 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
871 | return -EOPNOTSUPP; |
872 | ||
f3fe4e93 SS |
873 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && |
874 | !local->ops->set_frag_threshold)) | |
875 | return -EINVAL; | |
876 | ||
708d50ed AB |
877 | if (WARN_ON(local->hw.wiphy->interface_modes & |
878 | BIT(NL80211_IFTYPE_NAN) && | |
879 | (!local->ops->start_nan || !local->ops->stop_nan))) | |
880 | return -EINVAL; | |
881 | ||
38bb3e9d | 882 | #ifdef CONFIG_PM |
964dc9e2 | 883 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 884 | return -EINVAL; |
dfb89c56 | 885 | #endif |
eecc4800 | 886 | |
fe57d9f5 JB |
887 | if (!local->use_chanctx) { |
888 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
889 | const struct ieee80211_iface_combination *comb; | |
890 | ||
891 | comb = &local->hw.wiphy->iface_combinations[i]; | |
892 | ||
893 | if (comb->num_different_channels > 1) | |
894 | return -EINVAL; | |
895 | } | |
746a3365 | 896 | } else { |
486cf4c0 | 897 | /* DFS is not supported with multi-channel combinations yet */ |
164eb02d SW |
898 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
899 | const struct ieee80211_iface_combination *comb; | |
900 | ||
901 | comb = &local->hw.wiphy->iface_combinations[i]; | |
902 | ||
486cf4c0 MK |
903 | if (comb->radar_detect_widths && |
904 | comb->num_different_channels > 1) | |
164eb02d SW |
905 | return -EINVAL; |
906 | } | |
fe57d9f5 JB |
907 | } |
908 | ||
72d78728 | 909 | /* Only HW csum features are currently compatible with mac80211 */ |
07b83d2e | 910 | if (WARN_ON(hw->netdev_features & ~MAC80211_SUPPORTED_FEATURES)) |
72d78728 AN |
911 | return -EINVAL; |
912 | ||
78be49ec HS |
913 | if (hw->max_report_rates == 0) |
914 | hw->max_report_rates = hw->max_rates; | |
915 | ||
04ecd257 JB |
916 | local->rx_chains = 1; |
917 | ||
8318d78a JB |
918 | /* |
919 | * generic code guarantees at least one band, | |
920 | * set this very early because much code assumes | |
921 | * that hw.conf.channel is assigned | |
922 | */ | |
2a519311 | 923 | channels = 0; |
de95a54b | 924 | max_bitrates = 0; |
5ef2d41a | 925 | supp_ht = false; |
ba0afa2f | 926 | supp_vht = false; |
41cbb0f5 | 927 | supp_he = false; |
820acc81 | 928 | supp_eht = false; |
57fbcce3 | 929 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
8318d78a JB |
930 | struct ieee80211_supported_band *sband; |
931 | ||
932 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
933 | if (!sband) |
934 | continue; | |
fffa4b1c KB |
935 | |
936 | if (!dflt_chandef.chan) { | |
041c881a KK |
937 | /* |
938 | * Assign the first enabled channel to dflt_chandef | |
939 | * from the list of channels | |
940 | */ | |
941 | for (i = 0; i < sband->n_channels; i++) | |
942 | if (!(sband->channels[i].flags & | |
943 | IEEE80211_CHAN_DISABLED)) | |
944 | break; | |
945 | /* if none found then use the first anyway */ | |
946 | if (i == sband->n_channels) | |
947 | i = 0; | |
fffa4b1c | 948 | cfg80211_chandef_create(&dflt_chandef, |
041c881a | 949 | &sband->channels[i], |
fffa4b1c | 950 | NL80211_CHAN_NO_HT); |
8318d78a | 951 | /* init channel we're on */ |
fffa4b1c KB |
952 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
953 | local->hw.conf.chandef = dflt_chandef; | |
954 | local->_oper_chandef = dflt_chandef; | |
955 | } | |
956 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 957 | } |
fffa4b1c | 958 | |
de95a54b JB |
959 | channels += sband->n_channels; |
960 | ||
961 | if (max_bitrates < sband->n_bitrates) | |
962 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 963 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 964 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 | 965 | |
bac2fd3d JB |
966 | for (i = 0; i < sband->n_iftype_data; i++) { |
967 | const struct ieee80211_sband_iftype_data *iftd; | |
968 | ||
969 | iftd = &sband->iftype_data[i]; | |
970 | ||
4a11174d | 971 | supp_he = supp_he || iftd->he_cap.has_he; |
820acc81 | 972 | supp_eht = supp_eht || iftd->eht_cap.has_eht; |
bac2fd3d | 973 | } |
41cbb0f5 | 974 | |
75e296e9 JB |
975 | /* HT, VHT, HE require QoS, thus >= 4 queues */ |
976 | if (WARN_ON(local->hw.queues < IEEE80211_NUM_ACS && | |
977 | (supp_ht || supp_vht || supp_he))) | |
978 | return -EINVAL; | |
979 | ||
820acc81 IP |
980 | /* EHT requires HE support */ |
981 | if (WARN_ON(supp_eht && !supp_he)) | |
982 | return -EINVAL; | |
983 | ||
43071d8f FF |
984 | if (!sband->ht_cap.ht_supported) |
985 | continue; | |
04ecd257 JB |
986 | |
987 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
43071d8f FF |
988 | local->rx_chains = |
989 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
990 | local->rx_chains); | |
991 | ||
992 | /* no need to mask, SM_PS_DISABLED has all bits set */ | |
993 | sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
994 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
8318d78a | 995 | } |
f0706e82 | 996 | |
db3bdcb9 MP |
997 | /* if low-level driver supports AP, we also support VLAN. |
998 | * drivers advertising SW_CRYPTO_CONTROL should enable AP_VLAN | |
999 | * based on their support to transmit SW encrypted packets. | |
1000 | */ | |
1001 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP) && | |
1002 | !ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL)) { | |
7527a782 JB |
1003 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
1004 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
1005 | } | |
f59ac048 LR |
1006 | |
1007 | /* mac80211 always supports monitor */ | |
7527a782 JB |
1008 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
1009 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
1010 | ||
55de908a | 1011 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
1012 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
1013 | const struct ieee80211_iface_combination *c; | |
1014 | int j; | |
1015 | ||
1016 | c = &hw->wiphy->iface_combinations[i]; | |
1017 | ||
8e621fc9 JB |
1018 | for (j = 0; j < c->n_limits; j++) |
1019 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
1020 | c->limits[j].max > 1) | |
1021 | return -EINVAL; | |
1022 | } | |
1023 | ||
5b0ec94f JB |
1024 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
1025 | sizeof(void *) * channels, GFP_KERNEL); | |
1026 | if (!local->int_scan_req) | |
1027 | return -ENOMEM; | |
1028 | ||
57fbcce3 | 1029 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
5b0ec94f JB |
1030 | if (!local->hw.wiphy->bands[band]) |
1031 | continue; | |
1032 | local->int_scan_req->rates[band] = (u32) -1; | |
1033 | } | |
1034 | ||
5eb5a52d JB |
1035 | #ifndef CONFIG_MAC80211_MESH |
1036 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
1037 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
1038 | #endif | |
1039 | ||
1570ca59 JC |
1040 | /* if the underlying driver supports mesh, mac80211 will (at least) |
1041 | * provide routing of mesh authentication frames to userspace */ | |
1042 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
1043 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
1044 | ||
a621fa4d JB |
1045 | /* mac80211 supports control port protocol changing */ |
1046 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
1047 | ||
30686bf7 | 1048 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 1049 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 1050 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 1051 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 1052 | if (hw->max_signal <= 0) { |
1053 | result = -EINVAL; | |
52e04b4c | 1054 | goto fail_workqueue; |
52512072 | 1055 | } |
1056 | } | |
77965c97 | 1057 | |
3e47bf1c AW |
1058 | /* Mac80211 and therefore all drivers using SW crypto only |
1059 | * are able to handle PTK rekeys and Extended Key ID. | |
622fce81 | 1060 | */ |
3e47bf1c | 1061 | if (!local->ops->set_key) { |
387bc002 AW |
1062 | wiphy_ext_feature_set(local->hw.wiphy, |
1063 | NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); | |
3e47bf1c AW |
1064 | wiphy_ext_feature_set(local->hw.wiphy, |
1065 | NL80211_EXT_FEATURE_EXT_KEY_ID); | |
1066 | } | |
387bc002 | 1067 | |
a916062a NC |
1068 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_ADHOC)) |
1069 | wiphy_ext_feature_set(local->hw.wiphy, | |
1070 | NL80211_EXT_FEATURE_DEL_IBSS_STA); | |
1071 | ||
de95a54b JB |
1072 | /* |
1073 | * Calculate scan IE length -- we need this to alloc | |
1074 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 1075 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
1076 | * information -- SSID is the driver's responsibility. |
1077 | */ | |
dc9f48ce JM |
1078 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
1079 | 3 /* DS Params */; | |
5ef2d41a JB |
1080 | if (supp_ht) |
1081 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 1082 | |
d0e6c21a | 1083 | if (supp_vht) |
ba0afa2f | 1084 | local->scan_ies_len += |
d4950281 | 1085 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 1086 | |
41cbb0f5 | 1087 | /* |
cee04f3c IP |
1088 | * HE cap element is variable in size - set len to allow max size */ |
1089 | if (supp_he) { | |
41cbb0f5 | 1090 | local->scan_ies_len += |
cee04f3c | 1091 | 3 + sizeof(struct ieee80211_he_cap_elem) + |
41cbb0f5 | 1092 | sizeof(struct ieee80211_he_mcs_nss_supp) + |
cee04f3c | 1093 | IEEE80211_HE_PPE_THRES_MAX_LEN; |
820acc81 IP |
1094 | |
1095 | if (supp_eht) | |
1096 | local->scan_ies_len += | |
1097 | 3 + sizeof(struct ieee80211_eht_cap_elem) + | |
1098 | sizeof(struct ieee80211_eht_mcs_nss_supp) + | |
1099 | IEEE80211_EHT_PPE_THRES_MAX_LEN; | |
cee04f3c | 1100 | } |
41cbb0f5 | 1101 | |
de95a54b JB |
1102 | if (!local->ops->hw_scan) { |
1103 | /* For hw_scan, driver needs to set these up. */ | |
1104 | local->hw.wiphy->max_scan_ssids = 4; | |
1105 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1106 | } | |
1107 | ||
1108 | /* | |
1109 | * If the driver supports any scan IEs, then assume the | |
1110 | * limit includes the IEs mac80211 will add, otherwise | |
1111 | * leave it at zero and let the driver sort it out; we | |
1112 | * still pass our IEs to the driver but userspace will | |
1113 | * not be allowed to in that case. | |
1114 | */ | |
1115 | if (local->hw.wiphy->max_scan_ie_len) | |
1116 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
1117 | ||
2475b1cc MS |
1118 | result = ieee80211_init_cipher_suites(local); |
1119 | if (result < 0) | |
52e04b4c | 1120 | goto fail_workqueue; |
25e47c18 | 1121 | |
21f83589 JB |
1122 | if (!local->ops->remain_on_channel) |
1123 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1124 | |
dfe018bf AN |
1125 | /* mac80211 based drivers don't support internal TDLS setup */ |
1126 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1127 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1128 | ||
e9a21949 | 1129 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1130 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1131 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1132 | ||
caf56338 SS |
1133 | /* mac80211 supports multi BSSID, if the driver supports it */ |
1134 | if (ieee80211_hw_check(&local->hw, SUPPORTS_MULTI_BSSID)) { | |
1135 | local->hw.wiphy->support_mbssid = true; | |
1136 | if (ieee80211_hw_check(&local->hw, | |
1137 | SUPPORTS_ONLY_HE_MULTI_BSSID)) | |
1138 | local->hw.wiphy->support_only_he_mbssid = true; | |
1139 | else | |
1140 | local->ext_capa[2] |= | |
1141 | WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1142 | } | |
1143 | ||
8552a434 | 1144 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CNTDWN_COUNTERS_NUM; |
0d06d9ba | 1145 | |
e2530083 JB |
1146 | /* |
1147 | * We use the number of queues for feature tests (QoS, HT) internally | |
1148 | * so restrict them appropriately. | |
1149 | */ | |
e2530083 JB |
1150 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1151 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1152 | |
42935eca | 1153 | local->workqueue = |
d8537548 | 1154 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1155 | if (!local->workqueue) { |
f0706e82 JB |
1156 | result = -ENOMEM; |
1157 | goto fail_workqueue; | |
1158 | } | |
1159 | ||
b306f453 JB |
1160 | /* |
1161 | * The hardware needs headroom for sending the frame, | |
1162 | * and we need some headroom for passing the frame to monitor | |
1163 | * interfaces, but never both at the same time. | |
1164 | */ | |
33ccad35 | 1165 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1166 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1167 | |
b446918b HS |
1168 | /* |
1169 | * if the driver doesn't specify a max listen interval we | |
1170 | * use 5 which should be a safe default | |
1171 | */ | |
ea95bba4 | 1172 | if (local->hw.max_listen_interval == 0) |
b446918b | 1173 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1174 | |
1175 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1176 | ||
ff616381 | 1177 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1178 | |
167e33f4 AB |
1179 | if (!local->hw.max_nan_de_entries) |
1180 | local->hw.max_nan_de_entries = IEEE80211_MAX_NAN_INSTANCE_ID; | |
1181 | ||
b4809e94 THJ |
1182 | if (!local->hw.weight_multiplier) |
1183 | local->hw.weight_multiplier = 1; | |
1184 | ||
4a65cc24 | 1185 | ieee80211_wep_init(local); |
d4c4a9a1 | 1186 | |
24d47300 KB |
1187 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1188 | ||
b57e6b56 MSS |
1189 | ieee80211_led_init(local); |
1190 | ||
dc8b274f THJ |
1191 | result = ieee80211_txq_setup_flows(local); |
1192 | if (result) | |
1193 | goto fail_flows; | |
1194 | ||
f0706e82 | 1195 | rtnl_lock(); |
830f9038 JB |
1196 | result = ieee80211_init_rate_ctrl_alg(local, |
1197 | hw->rate_control_algorithm); | |
52e04b4c | 1198 | rtnl_unlock(); |
f0706e82 | 1199 | if (result < 0) { |
0fb9a9ec JP |
1200 | wiphy_debug(local->hw.wiphy, |
1201 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1202 | goto fail_rate; |
1203 | } | |
1204 | ||
09b4a4fa JB |
1205 | if (local->rate_ctrl) { |
1206 | clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); | |
1207 | if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) | |
1208 | ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1209 | } | |
1210 | ||
1211 | /* | |
1212 | * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, | |
1213 | * or have it when we don't, copy the sband structure and set/clear it. | |
1214 | * This is necessary because rate scaling algorithms could be switched | |
1215 | * and have different support values. | |
1216 | * Print a message so that in the common case the reallocation can be | |
1217 | * avoided. | |
1218 | */ | |
1219 | BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); | |
1220 | for (band = 0; band < NUM_NL80211_BANDS; band++) { | |
1221 | struct ieee80211_supported_band *sband; | |
1222 | bool local_cap, ie_cap; | |
1223 | ||
1224 | local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1225 | ||
1226 | sband = local->hw.wiphy->bands[band]; | |
1227 | if (!sband || !sband->vht_cap.vht_supported) | |
1228 | continue; | |
1229 | ||
1230 | ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & | |
1231 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); | |
1232 | ||
1233 | if (local_cap == ie_cap) | |
1234 | continue; | |
1235 | ||
1236 | sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); | |
48f3b9e9 WY |
1237 | if (!sband) { |
1238 | result = -ENOMEM; | |
09b4a4fa | 1239 | goto fail_rate; |
48f3b9e9 | 1240 | } |
09b4a4fa JB |
1241 | |
1242 | wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", | |
1243 | band); | |
1244 | ||
1245 | sband->vht_cap.vht_mcs.tx_highest ^= | |
1246 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
1247 | ||
1248 | local->hw.wiphy->bands[band] = sband; | |
1249 | local->sband_allocated |= BIT(band); | |
1250 | } | |
1251 | ||
52e04b4c SG |
1252 | result = wiphy_register(local->hw.wiphy); |
1253 | if (result < 0) | |
1254 | goto fail_wiphy_register; | |
1255 | ||
6cb5f3ea JB |
1256 | debugfs_hw_add(local); |
1257 | rate_control_add_debugfs(local); | |
1258 | ||
52e04b4c | 1259 | rtnl_lock(); |
a05829a7 | 1260 | wiphy_lock(hw->wiphy); |
52e04b4c | 1261 | |
8dffff21 | 1262 | /* add one default STA interface if supported */ |
e27513fb | 1263 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1264 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
dd665d23 JB |
1265 | struct vif_params params = {0}; |
1266 | ||
6bab2e19 | 1267 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
dd665d23 | 1268 | NL80211_IFTYPE_STATION, ¶ms); |
8dffff21 | 1269 | if (result) |
0fb9a9ec JP |
1270 | wiphy_warn(local->hw.wiphy, |
1271 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1272 | } |
f0706e82 | 1273 | |
a05829a7 | 1274 | wiphy_unlock(hw->wiphy); |
f0706e82 JB |
1275 | rtnl_unlock(); |
1276 | ||
26b36cfe | 1277 | #ifdef CONFIG_INET |
2b2c009e JO |
1278 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1279 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1280 | if (result) | |
1281 | goto fail_ifa; | |
26b36cfe | 1282 | #endif |
2b2c009e | 1283 | |
a65240c1 JB |
1284 | #if IS_ENABLED(CONFIG_IPV6) |
1285 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1286 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1287 | if (result) | |
1288 | goto fail_ifa6; | |
1289 | #endif | |
1290 | ||
f0706e82 JB |
1291 | return 0; |
1292 | ||
a65240c1 JB |
1293 | #if IS_ENABLED(CONFIG_IPV6) |
1294 | fail_ifa6: | |
93c08c32 | 1295 | #ifdef CONFIG_INET |
a65240c1 JB |
1296 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1297 | #endif | |
1298 | #endif | |
1299 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1300 | fail_ifa: |
93c08c32 | 1301 | #endif |
52e04b4c SG |
1302 | wiphy_unregister(local->hw.wiphy); |
1303 | fail_wiphy_register: | |
54330bf6 JB |
1304 | rtnl_lock(); |
1305 | rate_control_deinitialize(local); | |
10f644a4 | 1306 | ieee80211_remove_interfaces(local); |
f0706e82 | 1307 | rtnl_unlock(); |
52e04b4c | 1308 | fail_rate: |
dc8b274f | 1309 | fail_flows: |
6dd47d97 | 1310 | ieee80211_led_exit(local); |
42935eca | 1311 | destroy_workqueue(local->workqueue); |
10f644a4 | 1312 | fail_workqueue: |
3ffc2a90 JB |
1313 | if (local->wiphy_ciphers_allocated) |
1314 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 1315 | kfree(local->int_scan_req); |
f0706e82 JB |
1316 | return result; |
1317 | } | |
1318 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1319 | ||
f0706e82 JB |
1320 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1321 | { | |
1322 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1323 | |
1324 | tasklet_kill(&local->tx_pending_tasklet); | |
1325 | tasklet_kill(&local->tasklet); | |
1326 | ||
26b36cfe | 1327 | #ifdef CONFIG_INET |
2b2c009e | 1328 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1329 | #endif |
a65240c1 JB |
1330 | #if IS_ENABLED(CONFIG_IPV6) |
1331 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1332 | #endif | |
10f644a4 | 1333 | |
f0706e82 JB |
1334 | rtnl_lock(); |
1335 | ||
79010420 JB |
1336 | /* |
1337 | * At this point, interface list manipulations are fine | |
1338 | * because the driver cannot be handing us frames any | |
1339 | * more and the tasklet is killed. | |
1340 | */ | |
75636525 | 1341 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1342 | |
f0706e82 JB |
1343 | rtnl_unlock(); |
1344 | ||
aaa016cc | 1345 | cancel_delayed_work_sync(&local->roc_work); |
258086a4 | 1346 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1347 | cancel_work_sync(&local->reconfig_filter); |
18db594a | 1348 | flush_work(&local->sched_scan_stopped_work); |
4a199068 | 1349 | flush_work(&local->radar_detected_work); |
3ac64bee | 1350 | |
f0706e82 | 1351 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1352 | rate_control_deinitialize(local); |
1353 | ||
f64f9e71 JP |
1354 | if (skb_queue_len(&local->skb_queue) || |
1355 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1356 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1357 | skb_queue_purge(&local->skb_queue); |
1358 | skb_queue_purge(&local->skb_queue_unreliable); | |
1359 | ||
f0706e82 | 1360 | wiphy_unregister(local->hw.wiphy); |
52e04b4c | 1361 | destroy_workqueue(local->workqueue); |
f0706e82 | 1362 | ieee80211_led_exit(local); |
5ba63533 | 1363 | kfree(local->int_scan_req); |
f0706e82 JB |
1364 | } |
1365 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1366 | ||
a729cff8 JB |
1367 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1368 | { | |
1369 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1370 | kfree_skb(p); | |
1371 | return 0; | |
1372 | } | |
1373 | ||
f0706e82 JB |
1374 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1375 | { | |
1376 | struct ieee80211_local *local = hw_to_local(hw); | |
09b4a4fa | 1377 | enum nl80211_band band; |
f0706e82 | 1378 | |
c771c9d8 | 1379 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1380 | mutex_destroy(&local->mtx); |
c771c9d8 | 1381 | |
3ffc2a90 JB |
1382 | if (local->wiphy_ciphers_allocated) |
1383 | kfree(local->hw.wiphy->cipher_suites); | |
1384 | ||
a729cff8 JB |
1385 | idr_for_each(&local->ack_status_frames, |
1386 | ieee80211_free_ack_frame, NULL); | |
1387 | idr_destroy(&local->ack_status_frames); | |
1388 | ||
54330bf6 JB |
1389 | sta_info_stop(local); |
1390 | ||
8d5c2585 JB |
1391 | ieee80211_free_led_names(local); |
1392 | ||
09b4a4fa JB |
1393 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1394 | if (!(local->sband_allocated & BIT(band))) | |
1395 | continue; | |
1396 | kfree(local->hw.wiphy->bands[band]); | |
1397 | } | |
1398 | ||
f0706e82 JB |
1399 | wiphy_free(local->hw.wiphy); |
1400 | } | |
1401 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1402 | ||
f0706e82 JB |
1403 | static int __init ieee80211_init(void) |
1404 | { | |
1405 | struct sk_buff *skb; | |
1406 | int ret; | |
1407 | ||
e039fa4a JB |
1408 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1409 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1410 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1411 | |
cccf129f FF |
1412 | ret = rc80211_minstrel_init(); |
1413 | if (ret) | |
1414 | return ret; | |
1415 | ||
47846c9b JB |
1416 | ret = ieee80211_iface_init(); |
1417 | if (ret) | |
1418 | goto err_netdev; | |
e9f207f0 | 1419 | |
f0706e82 | 1420 | return 0; |
47846c9b | 1421 | err_netdev: |
47846c9b JB |
1422 | rc80211_minstrel_exit(); |
1423 | ||
1424 | return ret; | |
f0706e82 JB |
1425 | } |
1426 | ||
f0706e82 JB |
1427 | static void __exit ieee80211_exit(void) |
1428 | { | |
cccf129f | 1429 | rc80211_minstrel_exit(); |
ac71c691 | 1430 | |
bf7cd94d | 1431 | ieee80211s_stop(); |
902acc78 | 1432 | |
47846c9b | 1433 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1434 | |
1435 | rcu_barrier(); | |
f0706e82 JB |
1436 | } |
1437 | ||
1438 | ||
ca9938fe | 1439 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1440 | module_exit(ieee80211_exit); |
1441 | ||
1442 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1443 | MODULE_LICENSE("GPL"); |