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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 | | |
a503a953 JB |
178 | IEEE80211_CONF_CHANGE_POWER | |
179 | IEEE80211_CONF_CHANGE_SMPS); | |
55de908a | 180 | |
e8975581 | 181 | if (changed && local->open_count) { |
24487981 | 182 | ret = drv_config(local, changed); |
d73782fd | 183 | /* |
447107fb | 184 | * Goal: |
d73782fd JB |
185 | * HW reconfiguration should never fail, the driver has told |
186 | * us what it can support so it should live up to that promise. | |
447107fb RC |
187 | * |
188 | * Current status: | |
189 | * rfkill is not integrated with mac80211 and a | |
190 | * configuration command can thus fail if hardware rfkill | |
191 | * is enabled | |
192 | * | |
193 | * FIXME: integrate rfkill with mac80211 and then add this | |
194 | * WARN_ON() back | |
195 | * | |
d73782fd | 196 | */ |
447107fb | 197 | /* WARN_ON(ret); */ |
d73782fd | 198 | } |
f0706e82 | 199 | |
b2c258fb JB |
200 | return ret; |
201 | } | |
f0706e82 | 202 | |
7b7090b4 JB |
203 | #define BSS_CHANGED_VIF_CFG_FLAGS (BSS_CHANGED_ASSOC |\ |
204 | BSS_CHANGED_IDLE |\ | |
a3b8008d | 205 | BSS_CHANGED_PS |\ |
7b7090b4 JB |
206 | BSS_CHANGED_IBSS |\ |
207 | BSS_CHANGED_ARP_FILTER |\ | |
208 | BSS_CHANGED_SSID) | |
209 | ||
471b3efd | 210 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
7b7090b4 | 211 | u64 changed) |
d9430a32 | 212 | { |
471b3efd JB |
213 | struct ieee80211_local *local = sdata->local; |
214 | ||
7b7090b4 JB |
215 | might_sleep(); |
216 | ||
990baec0 | 217 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
471b3efd JB |
218 | return; |
219 | ||
7b7090b4 JB |
220 | if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON | |
221 | BSS_CHANGED_BEACON_ENABLED) && | |
222 | sdata->vif.type != NL80211_IFTYPE_AP && | |
223 | sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
224 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT && | |
225 | sdata->vif.type != NL80211_IFTYPE_OCB)) | |
226 | return; | |
227 | ||
228 | if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE || | |
229 | sdata->vif.type == NL80211_IFTYPE_NAN || | |
230 | (sdata->vif.type == NL80211_IFTYPE_MONITOR && | |
231 | !sdata->vif.bss_conf.mu_mimo_owner && | |
232 | !(changed & BSS_CHANGED_TXPOWER)))) | |
233 | return; | |
234 | ||
235 | if (!check_sdata_in_driver(sdata)) | |
236 | return; | |
237 | ||
238 | if (changed & BSS_CHANGED_VIF_CFG_FLAGS) { | |
239 | u64 ch = changed & BSS_CHANGED_VIF_CFG_FLAGS; | |
240 | ||
241 | trace_drv_vif_cfg_changed(local, sdata, changed); | |
242 | if (local->ops->vif_cfg_changed) | |
243 | local->ops->vif_cfg_changed(&local->hw, &sdata->vif, ch); | |
244 | } | |
245 | ||
246 | if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) { | |
247 | u64 ch = changed & ~BSS_CHANGED_VIF_CFG_FLAGS; | |
248 | ||
249 | /* FIXME: should be for each link */ | |
d8675a63 | 250 | trace_drv_link_info_changed(local, sdata, &sdata->vif.bss_conf, |
7840bd46 | 251 | changed); |
7b7090b4 JB |
252 | if (local->ops->link_info_changed) |
253 | local->ops->link_info_changed(&local->hw, &sdata->vif, | |
7840bd46 | 254 | &sdata->vif.bss_conf, ch); |
7b7090b4 JB |
255 | } |
256 | ||
257 | if (local->ops->bss_info_changed) | |
258 | local->ops->bss_info_changed(&local->hw, &sdata->vif, | |
259 | &sdata->vif.bss_conf, changed); | |
260 | trace_drv_return_void(local); | |
261 | } | |
262 | ||
263 | void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, | |
264 | u64 changed) | |
265 | { | |
266 | struct ieee80211_local *local = sdata->local; | |
267 | ||
268 | WARN_ON_ONCE(changed & ~BSS_CHANGED_VIF_CFG_FLAGS); | |
269 | ||
270 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) | |
271 | return; | |
272 | ||
273 | drv_vif_cfg_changed(local, sdata, changed); | |
274 | } | |
275 | ||
276 | void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, | |
d8675a63 JB |
277 | struct ieee80211_link_data *link, |
278 | u64 changed) | |
7b7090b4 JB |
279 | { |
280 | struct ieee80211_local *local = sdata->local; | |
281 | ||
282 | WARN_ON_ONCE(changed & BSS_CHANGED_VIF_CFG_FLAGS); | |
283 | ||
284 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) | |
285 | return; | |
286 | ||
591e73ee JB |
287 | if (!check_sdata_in_driver(sdata)) |
288 | return; | |
289 | ||
d8675a63 | 290 | drv_link_info_changed(local, sdata, link->conf, link->link_id, changed); |
d9430a32 DD |
291 | } |
292 | ||
f698d856 | 293 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 294 | { |
bda3933a JB |
295 | sdata->vif.bss_conf.use_cts_prot = false; |
296 | sdata->vif.bss_conf.use_short_preamble = false; | |
297 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
298 | return BSS_CHANGED_ERP_CTS_PROT | |
299 | BSS_CHANGED_ERP_PREAMBLE | | |
300 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
301 | } |
302 | ||
da1cad73 | 303 | static void ieee80211_tasklet_handler(struct tasklet_struct *t) |
f0706e82 | 304 | { |
da1cad73 | 305 | struct ieee80211_local *local = from_tasklet(local, t, tasklet); |
f0706e82 | 306 | struct sk_buff *skb; |
f0706e82 JB |
307 | |
308 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
309 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
310 | switch (skb->pkt_type) { | |
311 | case IEEE80211_RX_MSG: | |
51fb61e7 | 312 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
313 | * netstack. */ |
314 | skb->pkt_type = 0; | |
005e472b | 315 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
316 | break; |
317 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 318 | skb->pkt_type = 0; |
005e472b | 319 | ieee80211_tx_status(&local->hw, skb); |
f0706e82 | 320 | break; |
f4ea83dd | 321 | default: |
5e3f3089 LF |
322 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
323 | skb->pkt_type); | |
f0706e82 JB |
324 | dev_kfree_skb(skb); |
325 | break; | |
326 | } | |
327 | } | |
328 | } | |
329 | ||
f2753ddb JB |
330 | static void ieee80211_restart_work(struct work_struct *work) |
331 | { | |
332 | struct ieee80211_local *local = | |
333 | container_of(work, struct ieee80211_local, restart_work); | |
ab499db8 | 334 | struct ieee80211_sub_if_data *sdata; |
f5baf287 | 335 | int ret; |
f2753ddb | 336 | |
bc86863d SG |
337 | /* wait for scan work complete */ |
338 | flush_workqueue(local->workqueue); | |
2bc533bd | 339 | flush_work(&local->sched_scan_stopped_work); |
45daaa13 IP |
340 | flush_work(&local->radar_detected_work); |
341 | ||
342 | rtnl_lock(); | |
276e189f JB |
343 | /* we might do interface manipulations, so need both */ |
344 | wiphy_lock(local->hw.wiphy); | |
bc86863d | 345 | |
d43c6b6e DS |
346 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
347 | "%s called with hardware scan in progress\n", __func__); | |
bc86863d | 348 | |
f3ffb6c3 EG |
349 | list_for_each_entry(sdata, &local->interfaces, list) { |
350 | /* | |
351 | * XXX: there may be more work for other vif types and even | |
352 | * for station mode: a good thing would be to run most of | |
353 | * the iface type's dependent _stop (ieee80211_mg_stop, | |
354 | * ieee80211_ibss_stop) etc... | |
355 | * For now, fix only the specific bug that was seen: race | |
356 | * between csa_connection_drop_work and us. | |
357 | */ | |
358 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { | |
359 | /* | |
360 | * This worker is scheduled from the iface worker that | |
361 | * runs on mac80211's workqueue, so we can't be | |
362 | * scheduling this worker after the cancel right here. | |
363 | * The exception is ieee80211_chswitch_done. | |
364 | * Then we can have a race... | |
365 | */ | |
366 | cancel_work_sync(&sdata->u.mgd.csa_connection_drop_work); | |
d0a9123e | 367 | if (sdata->vif.bss_conf.csa_active) { |
7dd231eb NG |
368 | sdata_lock(sdata); |
369 | ieee80211_sta_connection_lost(sdata, | |
53da4c45 JB |
370 | WLAN_REASON_UNSPECIFIED, |
371 | false); | |
7dd231eb NG |
372 | sdata_unlock(sdata); |
373 | } | |
f3ffb6c3 | 374 | } |
ab499db8 | 375 | flush_delayed_work(&sdata->dec_tailroom_needed_wk); |
f3ffb6c3 | 376 | } |
4136c422 | 377 | ieee80211_scan_cancel(local); |
470f4d61 EP |
378 | |
379 | /* make sure any new ROC will consider local->in_reconfig */ | |
380 | flush_delayed_work(&local->roc_work); | |
381 | flush_work(&local->hw_roc_done); | |
382 | ||
2316380f SS |
383 | /* wait for all packet processing to be done */ |
384 | synchronize_net(); | |
385 | ||
f5baf287 | 386 | ret = ieee80211_reconfig(local); |
a05829a7 | 387 | wiphy_unlock(local->hw.wiphy); |
f5baf287 JB |
388 | |
389 | if (ret) | |
390 | cfg80211_shutdown_all_interfaces(local->hw.wiphy); | |
391 | ||
f2753ddb JB |
392 | rtnl_unlock(); |
393 | } | |
394 | ||
395 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
396 | { | |
397 | struct ieee80211_local *local = hw_to_local(hw); | |
398 | ||
b5878a2d JB |
399 | trace_api_restart_hw(local); |
400 | ||
b196d031 MB |
401 | wiphy_info(hw->wiphy, |
402 | "Hardware restart was requested\n"); | |
403 | ||
18145c69 | 404 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 | 405 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
406 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
407 | false); | |
f2753ddb | 408 | |
04800ada AN |
409 | /* |
410 | * Stop all Rx during the reconfig. We don't want state changes | |
411 | * or driver callbacks while this is in progress. | |
412 | */ | |
413 | local->in_reconfig = true; | |
414 | barrier(); | |
415 | ||
43d6df00 | 416 | queue_work(system_freezable_wq, &local->restart_work); |
f2753ddb JB |
417 | } |
418 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
419 | ||
26b36cfe | 420 | #ifdef CONFIG_INET |
2b2c009e JO |
421 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
422 | unsigned long data, void *arg) | |
423 | { | |
424 | struct in_ifaddr *ifa = arg; | |
425 | struct ieee80211_local *local = | |
426 | container_of(nb, struct ieee80211_local, | |
427 | ifa_notifier); | |
428 | struct net_device *ndev = ifa->ifa_dev->dev; | |
429 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 430 | struct in_device *idev; |
2b2c009e | 431 | struct ieee80211_sub_if_data *sdata; |
f276e20b | 432 | struct ieee80211_vif_cfg *vif_cfg; |
2b2c009e | 433 | struct ieee80211_if_managed *ifmgd; |
68542962 | 434 | int c = 0; |
2b2c009e JO |
435 | |
436 | /* Make sure it's our interface that got changed */ | |
437 | if (!wdev) | |
438 | return NOTIFY_DONE; | |
439 | ||
440 | if (wdev->wiphy != local->hw.wiphy) | |
441 | return NOTIFY_DONE; | |
442 | ||
2b2c009e | 443 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
f276e20b | 444 | vif_cfg = &sdata->vif.cfg; |
2b2c009e JO |
445 | |
446 | /* ARP filtering is only supported in managed mode */ | |
447 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
448 | return NOTIFY_DONE; | |
449 | ||
95ae6b22 | 450 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
451 | if (!idev) |
452 | return NOTIFY_DONE; | |
453 | ||
2b2c009e | 454 | ifmgd = &sdata->u.mgd; |
8d61ffa5 | 455 | sdata_lock(sdata); |
68542962 | 456 | |
f276e20b | 457 | /* Copy the addresses to the vif config list */ |
2638eb8b | 458 | ifa = rtnl_dereference(idev->ifa_list); |
0f19b41e JB |
459 | while (ifa) { |
460 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
f276e20b | 461 | vif_cfg->arp_addr_list[c] = ifa->ifa_address; |
2638eb8b | 462 | ifa = rtnl_dereference(ifa->ifa_next); |
68542962 JO |
463 | c++; |
464 | } | |
465 | ||
f276e20b | 466 | vif_cfg->arp_addr_cnt = c; |
68542962 | 467 | |
53d69c39 | 468 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 469 | if (ifmgd->associated) |
7b7090b4 | 470 | ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER); |
68542962 | 471 | |
8d61ffa5 | 472 | sdata_unlock(sdata); |
2b2c009e | 473 | |
8bd811aa | 474 | return NOTIFY_OK; |
2b2c009e | 475 | } |
26b36cfe | 476 | #endif |
2b2c009e | 477 | |
a65240c1 JB |
478 | #if IS_ENABLED(CONFIG_IPV6) |
479 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
480 | unsigned long data, void *arg) | |
481 | { | |
482 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
483 | struct inet6_dev *idev = ifa->idev; | |
484 | struct net_device *ndev = ifa->idev->dev; | |
485 | struct ieee80211_local *local = | |
486 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
487 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
488 | struct ieee80211_sub_if_data *sdata; | |
489 | ||
490 | /* Make sure it's our interface that got changed */ | |
491 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
492 | return NOTIFY_DONE; | |
493 | ||
494 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
495 | ||
496 | /* | |
497 | * For now only support station mode. This is mostly because | |
498 | * doing AP would have to handle AP_VLAN in some way ... | |
499 | */ | |
500 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
501 | return NOTIFY_DONE; | |
502 | ||
503 | drv_ipv6_addr_change(local, sdata, idev); | |
504 | ||
8bd811aa | 505 | return NOTIFY_OK; |
a65240c1 JB |
506 | } |
507 | #endif | |
508 | ||
2e161f78 JB |
509 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
510 | static const struct ieee80211_txrx_stypes | |
511 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
512 | [NL80211_IFTYPE_ADHOC] = { | |
513 | .tx = 0xffff, | |
3bfda62c WH |
514 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
515 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
516 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
517 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
518 | }, |
519 | [NL80211_IFTYPE_STATION] = { | |
520 | .tx = 0xffff, | |
ff74c51e IP |
521 | /* |
522 | * To support Pre Association Security Negotiation (PASN) while | |
523 | * already associated to one AP, allow user space to register to | |
524 | * Rx authentication frames, so that the user space logic would | |
525 | * be able to receive/handle authentication frames from a | |
526 | * different AP as part of PASN. | |
527 | * It is expected that user space would intelligently register | |
528 | * for Rx authentication frames, i.e., only when PASN is used | |
529 | * and configure a match filter only for PASN authentication | |
530 | * algorithm, as otherwise the MLME functionality of mac80211 | |
531 | * would be broken. | |
532 | */ | |
2e161f78 | 533 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
ff74c51e | 534 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
2e161f78 JB |
535 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
536 | }, | |
537 | [NL80211_IFTYPE_AP] = { | |
538 | .tx = 0xffff, | |
539 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
540 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
541 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
542 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
543 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
544 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
545 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
546 | }, | |
547 | [NL80211_IFTYPE_AP_VLAN] = { | |
548 | /* copy AP */ | |
549 | .tx = 0xffff, | |
550 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
551 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
552 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
553 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
554 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
555 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
556 | BIT(IEEE80211_STYPE_ACTION >> 4), |
557 | }, | |
558 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
559 | .tx = 0xffff, | |
560 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
561 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
562 | }, | |
563 | [NL80211_IFTYPE_P2P_GO] = { | |
564 | .tx = 0xffff, | |
565 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
566 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
567 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
568 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
569 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
570 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
571 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
572 | }, | |
c7108a71 JC |
573 | [NL80211_IFTYPE_MESH_POINT] = { |
574 | .tx = 0xffff, | |
71839121 JC |
575 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
576 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
577 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 578 | }, |
f142c6b9 JB |
579 | [NL80211_IFTYPE_P2P_DEVICE] = { |
580 | .tx = 0xffff, | |
581 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
582 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
583 | }, | |
2e161f78 JB |
584 | }; |
585 | ||
ef96a842 BG |
586 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
587 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
588 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
589 | ||
590 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
591 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 592 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 593 | IEEE80211_HT_CAP_SGI_40 | |
d9bb4108 SM |
594 | IEEE80211_HT_CAP_TX_STBC | |
595 | IEEE80211_HT_CAP_RX_STBC | | |
9a07bf50 JM |
596 | IEEE80211_HT_CAP_LDPC_CODING | |
597 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
598 | .mcs = { |
599 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
600 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
601 | }, | |
602 | }; | |
603 | ||
dd5ecfea JB |
604 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
605 | .vht_cap_info = | |
606 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
607 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
608 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
67d1ba8a | 609 | IEEE80211_VHT_CAP_RXSTBC_MASK | |
dd5ecfea JB |
610 | IEEE80211_VHT_CAP_TXSTBC | |
611 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
612 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
613 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
614 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
615 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
616 | .supp_mcs = { | |
617 | .rx_mcs_map = cpu_to_le16(~0), | |
618 | .tx_mcs_map = cpu_to_le16(~0), | |
619 | }, | |
620 | }; | |
621 | ||
ad28757e BG |
622 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
623 | const struct ieee80211_ops *ops, | |
624 | const char *requested_name) | |
f0706e82 | 625 | { |
f0706e82 | 626 | struct ieee80211_local *local; |
96f5e66e | 627 | int priv_size, i; |
f0706e82 | 628 | struct wiphy *wiphy; |
fe57d9f5 | 629 | bool use_chanctx; |
f0706e82 | 630 | |
c0af0734 JB |
631 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
632 | !ops->add_interface || !ops->remove_interface || | |
107395f9 | 633 | !ops->configure_filter || !ops->wake_tx_queue)) |
c0af0734 JB |
634 | return NULL; |
635 | ||
f09603a2 JB |
636 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
637 | return NULL; | |
7b7090b4 JB |
638 | |
639 | if (WARN_ON(!!ops->link_info_changed != !!ops->vif_cfg_changed || | |
640 | (ops->link_info_changed && ops->bss_info_changed))) | |
641 | return NULL; | |
f09603a2 | 642 | |
e269d860 JB |
643 | /* check all or no channel context operations exist */ |
644 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
645 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
646 | !!ops->unassign_vif_chanctx; | |
647 | if (WARN_ON(i != 0 && i != 5)) | |
648 | return NULL; | |
fe57d9f5 | 649 | use_chanctx = i == 5; |
e269d860 | 650 | |
f0706e82 JB |
651 | /* Ensure 32-byte alignment of our private data and hw private data. |
652 | * We use the wiphy priv data for both our ieee80211_local and for | |
653 | * the driver's private data | |
654 | * | |
655 | * In memory it'll be like this: | |
656 | * | |
657 | * +-------------------------+ | |
658 | * | struct wiphy | | |
659 | * +-------------------------+ | |
660 | * | struct ieee80211_local | | |
661 | * +-------------------------+ | |
662 | * | driver's private data | | |
663 | * +-------------------------+ | |
664 | * | |
665 | */ | |
1ce8e7b5 | 666 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 667 | |
ad28757e | 668 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
669 | |
670 | if (!wiphy) | |
671 | return NULL; | |
672 | ||
2e161f78 JB |
673 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
674 | ||
207aba60 JB |
675 | wiphy->privid = mac80211_wiphy_privid; |
676 | ||
9bc383de JB |
677 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
678 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 679 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 680 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
681 | WIPHY_FLAG_OFFCHAN_TX; |
682 | ||
8fa180bb | 683 | if (!use_chanctx || ops->remain_on_channel) |
81ddbb5c | 684 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
207aba60 | 685 | |
b292219f JB |
686 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
687 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 688 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 689 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 690 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
691 | NL80211_FEATURE_USERSPACE_MPM | |
692 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
f3ca52aa | 693 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_FILS_STA); |
018f6fbf DK |
694 | wiphy_ext_feature_set(wiphy, |
695 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211); | |
7f3f96ce MT |
696 | wiphy_ext_feature_set(wiphy, |
697 | NL80211_EXT_FEATURE_CONTROL_PORT_NO_PREAUTH); | |
a7528198 MT |
698 | wiphy_ext_feature_set(wiphy, |
699 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_TX_STATUS); | |
2032f3b2 TP |
700 | wiphy_ext_feature_set(wiphy, |
701 | NL80211_EXT_FEATURE_SCAN_FREQ_KHZ); | |
3c06e91b JP |
702 | wiphy_ext_feature_set(wiphy, |
703 | NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE); | |
a729cff8 | 704 | |
b9771d41 | 705 | if (!ops->hw_scan) { |
5c95b940 AQ |
706 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
707 | NL80211_FEATURE_AP_SCAN; | |
b9771d41 JB |
708 | /* |
709 | * if the driver behaves correctly using the probe request | |
710 | * (template) from mac80211, then both of these should be | |
711 | * supported even with hw scan - but let drivers opt in. | |
712 | */ | |
713 | wiphy_ext_feature_set(wiphy, | |
714 | NL80211_EXT_FEATURE_SCAN_RANDOM_SN); | |
715 | wiphy_ext_feature_set(wiphy, | |
716 | NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); | |
717 | } | |
cd2bb512 | 718 | |
207aba60 JB |
719 | if (!ops->set_key) |
720 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 721 | |
107395f9 | 722 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_TXQS); |
f278ce4f EG |
723 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_RRM); |
724 | ||
0c1ad2ca | 725 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
726 | |
727 | local = wiphy_priv(wiphy); | |
de95a54b | 728 | |
7bedd0cf JB |
729 | if (sta_info_init(local)) |
730 | goto err_free; | |
731 | ||
f0706e82 JB |
732 | local->hw.wiphy = wiphy; |
733 | ||
1ce8e7b5 | 734 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
735 | |
736 | local->ops = ops; | |
fe57d9f5 | 737 | local->use_chanctx = use_chanctx; |
f0706e82 | 738 | |
70e53669 WG |
739 | /* |
740 | * We need a bit of data queued to build aggregates properly, so | |
741 | * instruct the TCP stack to allow more than a single ms of data | |
742 | * to be queued in the stack. The value is a bit-shift of 1 | |
5c14a4d0 | 743 | * second, so 7 is ~8ms of queued data. Only affects local TCP |
70e53669 WG |
744 | * sockets. |
745 | * This is the default, anyhow - drivers may need to override it | |
746 | * for local reasons (longer buffers, longer completion time, or | |
747 | * similar). | |
748 | */ | |
5c14a4d0 | 749 | local->hw.tx_sk_pacing_shift = 7; |
70e53669 | 750 | |
e6a9854b JB |
751 | /* set up some defaults */ |
752 | local->hw.queues = 1; | |
753 | local->hw.max_rates = 1; | |
78be49ec | 754 | local->hw.max_report_rates = 0; |
b8042b3d JB |
755 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; |
756 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; | |
3a25a8c8 | 757 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
758 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
759 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
760 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
761 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
762 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
763 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
764 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
765 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
766 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
06354665 | 767 | local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; |
1ea6f9c0 | 768 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 769 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 770 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 771 | |
e9a21949 LC |
772 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
773 | ||
774 | wiphy->extended_capabilities = local->ext_capa; | |
775 | wiphy->extended_capabilities_mask = local->ext_capa; | |
776 | wiphy->extended_capabilities_len = | |
777 | ARRAY_SIZE(local->ext_capa); | |
778 | ||
79010420 | 779 | INIT_LIST_HEAD(&local->interfaces); |
f64331d5 | 780 | INIT_LIST_HEAD(&local->mon_list); |
2f787b0b YH |
781 | |
782 | __hw_addr_init(&local->mc_list); | |
783 | ||
c771c9d8 | 784 | mutex_init(&local->iflist_mtx); |
a1699b75 | 785 | mutex_init(&local->mtx); |
f0706e82 | 786 | |
ad0e2b5a | 787 | mutex_init(&local->key_mtx); |
3b8d81e0 | 788 | spin_lock_init(&local->filter_lock); |
f9e124fb | 789 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
790 | spin_lock_init(&local->queue_stop_reason_lock); |
791 | ||
18667600 | 792 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
942741da FF |
793 | INIT_LIST_HEAD(&local->active_txqs[i]); |
794 | spin_lock_init(&local->active_txq_lock[i]); | |
795 | local->aql_txq_limit_low[i] = IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L; | |
796 | local->aql_txq_limit_high[i] = | |
3ace10f5 | 797 | IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H; |
8e4bac06 | 798 | atomic_set(&local->aql_ac_pending_airtime[i], 0); |
18667600 | 799 | } |
3ace10f5 | 800 | |
911bde0f | 801 | local->airtime_flags = AIRTIME_USE_TX | AIRTIME_USE_RX; |
3ace10f5 KY |
802 | local->aql_threshold = IEEE80211_AQL_THRESHOLD; |
803 | atomic_set(&local->aql_total_pending_airtime, 0); | |
18667600 | 804 | |
007ae9b2 AW |
805 | spin_lock_init(&local->handle_wake_tx_queue_lock); |
806 | ||
d01a1e65 MK |
807 | INIT_LIST_HEAD(&local->chanctx_list); |
808 | mutex_init(&local->chanctx_mtx); | |
809 | ||
c2b13452 | 810 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 811 | |
f2753ddb JB |
812 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
813 | ||
164eb02d SW |
814 | INIT_WORK(&local->radar_detected_work, |
815 | ieee80211_dfs_radar_detected_work); | |
816 | ||
3ac64bee | 817 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 818 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 819 | |
520eb820 KV |
820 | INIT_WORK(&local->dynamic_ps_enable_work, |
821 | ieee80211_dynamic_ps_enable_work); | |
822 | INIT_WORK(&local->dynamic_ps_disable_work, | |
823 | ieee80211_dynamic_ps_disable_work); | |
34f11cd3 | 824 | timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); |
520eb820 | 825 | |
85a9994a LC |
826 | INIT_WORK(&local->sched_scan_stopped_work, |
827 | ieee80211_sched_scan_stopped_work); | |
828 | ||
a729cff8 JB |
829 | spin_lock_init(&local->ack_status_lock); |
830 | idr_init(&local->ack_status_frames); | |
a729cff8 | 831 | |
a6a67db2 | 832 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 833 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
834 | atomic_set(&local->agg_queue_stop[i], 0); |
835 | } | |
da1cad73 | 836 | tasklet_setup(&local->tx_pending_tasklet, ieee80211_tx_pending); |
107395f9 | 837 | tasklet_setup(&local->wake_txqs_tasklet, ieee80211_wake_txqs); |
da1cad73 | 838 | tasklet_setup(&local->tasklet, ieee80211_tasklet_handler); |
f0706e82 JB |
839 | |
840 | skb_queue_head_init(&local->skb_queue); | |
841 | skb_queue_head_init(&local->skb_queue_unreliable); | |
842 | ||
8d5c2585 | 843 | ieee80211_alloc_led_names(local); |
fe67c913 | 844 | |
2eb278e0 | 845 | ieee80211_roc_setup(local); |
21f83589 | 846 | |
99ee7cae JB |
847 | local->hw.radiotap_timestamp.units_pos = -1; |
848 | local->hw.radiotap_timestamp.accuracy = -1; | |
849 | ||
005e472b | 850 | return &local->hw; |
7bedd0cf JB |
851 | err_free: |
852 | wiphy_free(wiphy); | |
853 | return NULL; | |
f0706e82 | 854 | } |
ad28757e | 855 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 856 | |
2475b1cc | 857 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 858 | { |
5fdb3735 | 859 | bool have_wep = !fips_enabled; /* FIPS does not permit the use of RC4 */ |
30686bf7 | 860 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
23a5f0af | 861 | int r = 0, w = 0; |
2475b1cc | 862 | u32 *suites; |
25e47c18 | 863 | static const u32 cipher_suites[] = { |
5daa8a8e | 864 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
865 | WLAN_CIPHER_SUITE_WEP40, |
866 | WLAN_CIPHER_SUITE_WEP104, | |
867 | WLAN_CIPHER_SUITE_TKIP, | |
868 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 869 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
870 | WLAN_CIPHER_SUITE_GCMP, |
871 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
872 | |
873 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
874 | WLAN_CIPHER_SUITE_AES_CMAC, |
875 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
876 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
877 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 878 | }; |
8318d78a | 879 | |
30686bf7 | 880 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
881 | local->hw.wiphy->cipher_suites) { |
882 | /* If the driver advertises, or doesn't support SW crypto, | |
883 | * we only need to remove WEP if necessary. | |
884 | */ | |
885 | if (have_wep) | |
886 | return 0; | |
887 | ||
888 | /* well if it has _no_ ciphers ... fine */ | |
889 | if (!local->hw.wiphy->n_cipher_suites) | |
890 | return 0; | |
891 | ||
892 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
893 | suites = kmemdup(local->hw.wiphy->cipher_suites, | |
894 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
895 | GFP_KERNEL); | |
896 | if (!suites) | |
897 | return -ENOMEM; | |
2475b1cc | 898 | |
fa7e1fbc JB |
899 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
900 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
901 | ||
902 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
903 | suite == WLAN_CIPHER_SUITE_WEP104) | |
904 | continue; | |
905 | suites[w++] = suite; | |
906 | } | |
23a5f0af JB |
907 | } else { |
908 | /* assign the (software supported and perhaps offloaded) | |
909 | * cipher suites | |
fa7e1fbc | 910 | */ |
2475b1cc MS |
911 | local->hw.wiphy->cipher_suites = cipher_suites; |
912 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
913 | ||
914 | if (!have_mfp) | |
8ade538b | 915 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
916 | |
917 | if (!have_wep) { | |
918 | local->hw.wiphy->cipher_suites += 2; | |
919 | local->hw.wiphy->n_cipher_suites -= 2; | |
920 | } | |
921 | ||
fa7e1fbc | 922 | /* not dynamically allocated, so just return */ |
2475b1cc | 923 | return 0; |
2475b1cc MS |
924 | } |
925 | ||
926 | local->hw.wiphy->cipher_suites = suites; | |
927 | local->hw.wiphy->n_cipher_suites = w; | |
928 | local->wiphy_ciphers_allocated = true; | |
929 | ||
930 | return 0; | |
931 | } | |
932 | ||
933 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
934 | { | |
935 | struct ieee80211_local *local = hw_to_local(hw); | |
936 | int result, i; | |
57fbcce3 | 937 | enum nl80211_band band; |
2475b1cc | 938 | int channels, max_bitrates; |
820acc81 | 939 | bool supp_ht, supp_vht, supp_he, supp_eht; |
2475b1cc MS |
940 | struct cfg80211_chan_def dflt_chandef = {}; |
941 | ||
30686bf7 | 942 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
943 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
944 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
945 | return -EINVAL; | |
946 | ||
a7a6bdd0 AN |
947 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
948 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
949 | !local->ops->tdls_cancel_channel_switch || |
950 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
951 | return -EOPNOTSUPP; |
952 | ||
f3fe4e93 SS |
953 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && |
954 | !local->ops->set_frag_threshold)) | |
955 | return -EINVAL; | |
956 | ||
708d50ed AB |
957 | if (WARN_ON(local->hw.wiphy->interface_modes & |
958 | BIT(NL80211_IFTYPE_NAN) && | |
959 | (!local->ops->start_nan || !local->ops->stop_nan))) | |
960 | return -EINVAL; | |
961 | ||
762623a6 JB |
962 | if (hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) { |
963 | /* | |
964 | * For drivers capable of doing MLO, assume modern driver | |
965 | * or firmware facilities, so software doesn't have to do | |
966 | * as much, e.g. monitoring beacons would be hard if we | |
967 | * might not even know which link is active at which time. | |
968 | */ | |
969 | if (WARN_ON(!local->use_chanctx)) | |
970 | return -EINVAL; | |
971 | ||
972 | if (WARN_ON(!local->ops->link_info_changed)) | |
973 | return -EINVAL; | |
974 | ||
975 | if (WARN_ON(!ieee80211_hw_check(hw, HAS_RATE_CONTROL))) | |
976 | return -EINVAL; | |
977 | ||
978 | if (WARN_ON(!ieee80211_hw_check(hw, AMPDU_AGGREGATION))) | |
979 | return -EINVAL; | |
980 | ||
981 | if (WARN_ON(ieee80211_hw_check(hw, HOST_BROADCAST_PS_BUFFERING))) | |
982 | return -EINVAL; | |
983 | ||
984 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_PS) && | |
8c7c6b58 JB |
985 | (!ieee80211_hw_check(hw, SUPPORTS_DYNAMIC_PS) || |
986 | ieee80211_hw_check(hw, PS_NULLFUNC_STACK)))) | |
762623a6 JB |
987 | return -EINVAL; |
988 | ||
989 | if (WARN_ON(!ieee80211_hw_check(hw, MFP_CAPABLE))) | |
990 | return -EINVAL; | |
991 | ||
992 | if (WARN_ON(!ieee80211_hw_check(hw, CONNECTION_MONITOR))) | |
993 | return -EINVAL; | |
994 | ||
995 | if (WARN_ON(ieee80211_hw_check(hw, NEED_DTIM_BEFORE_ASSOC))) | |
996 | return -EINVAL; | |
997 | ||
998 | if (WARN_ON(ieee80211_hw_check(hw, TIMING_BEACON_ONLY))) | |
999 | return -EINVAL; | |
1000 | ||
1001 | if (WARN_ON(!ieee80211_hw_check(hw, AP_LINK_PS))) | |
1002 | return -EINVAL; | |
19343659 JB |
1003 | |
1004 | if (WARN_ON(ieee80211_hw_check(hw, DEAUTH_NEED_MGD_TX_PREP))) | |
1005 | return -EINVAL; | |
762623a6 JB |
1006 | } |
1007 | ||
38bb3e9d | 1008 | #ifdef CONFIG_PM |
964dc9e2 | 1009 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 1010 | return -EINVAL; |
dfb89c56 | 1011 | #endif |
eecc4800 | 1012 | |
fe57d9f5 JB |
1013 | if (!local->use_chanctx) { |
1014 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
1015 | const struct ieee80211_iface_combination *comb; | |
1016 | ||
1017 | comb = &local->hw.wiphy->iface_combinations[i]; | |
1018 | ||
1019 | if (comb->num_different_channels > 1) | |
1020 | return -EINVAL; | |
1021 | } | |
746a3365 | 1022 | } else { |
486cf4c0 | 1023 | /* DFS is not supported with multi-channel combinations yet */ |
164eb02d SW |
1024 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
1025 | const struct ieee80211_iface_combination *comb; | |
1026 | ||
1027 | comb = &local->hw.wiphy->iface_combinations[i]; | |
1028 | ||
486cf4c0 MK |
1029 | if (comb->radar_detect_widths && |
1030 | comb->num_different_channels > 1) | |
164eb02d SW |
1031 | return -EINVAL; |
1032 | } | |
fe57d9f5 JB |
1033 | } |
1034 | ||
72d78728 | 1035 | /* Only HW csum features are currently compatible with mac80211 */ |
07b83d2e | 1036 | if (WARN_ON(hw->netdev_features & ~MAC80211_SUPPORTED_FEATURES)) |
72d78728 AN |
1037 | return -EINVAL; |
1038 | ||
78be49ec HS |
1039 | if (hw->max_report_rates == 0) |
1040 | hw->max_report_rates = hw->max_rates; | |
1041 | ||
04ecd257 JB |
1042 | local->rx_chains = 1; |
1043 | ||
8318d78a JB |
1044 | /* |
1045 | * generic code guarantees at least one band, | |
1046 | * set this very early because much code assumes | |
1047 | * that hw.conf.channel is assigned | |
1048 | */ | |
2a519311 | 1049 | channels = 0; |
de95a54b | 1050 | max_bitrates = 0; |
5ef2d41a | 1051 | supp_ht = false; |
ba0afa2f | 1052 | supp_vht = false; |
41cbb0f5 | 1053 | supp_he = false; |
820acc81 | 1054 | supp_eht = false; |
57fbcce3 | 1055 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
8318d78a JB |
1056 | struct ieee80211_supported_band *sband; |
1057 | ||
1058 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
1059 | if (!sband) |
1060 | continue; | |
fffa4b1c KB |
1061 | |
1062 | if (!dflt_chandef.chan) { | |
041c881a KK |
1063 | /* |
1064 | * Assign the first enabled channel to dflt_chandef | |
1065 | * from the list of channels | |
1066 | */ | |
1067 | for (i = 0; i < sband->n_channels; i++) | |
1068 | if (!(sband->channels[i].flags & | |
1069 | IEEE80211_CHAN_DISABLED)) | |
1070 | break; | |
1071 | /* if none found then use the first anyway */ | |
1072 | if (i == sband->n_channels) | |
1073 | i = 0; | |
fffa4b1c | 1074 | cfg80211_chandef_create(&dflt_chandef, |
041c881a | 1075 | &sband->channels[i], |
fffa4b1c | 1076 | NL80211_CHAN_NO_HT); |
8318d78a | 1077 | /* init channel we're on */ |
fffa4b1c KB |
1078 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
1079 | local->hw.conf.chandef = dflt_chandef; | |
1080 | local->_oper_chandef = dflt_chandef; | |
1081 | } | |
1082 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 1083 | } |
fffa4b1c | 1084 | |
de95a54b JB |
1085 | channels += sband->n_channels; |
1086 | ||
69e0d04e JB |
1087 | /* |
1088 | * Due to the way the aggregation code handles this and it | |
1089 | * being an HT capability, we can't really support delayed | |
1090 | * BA in MLO (yet). | |
1091 | */ | |
1092 | if (WARN_ON(sband->ht_cap.ht_supported && | |
1093 | (sband->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA) && | |
1094 | hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) | |
1095 | return -EINVAL; | |
1096 | ||
de95a54b JB |
1097 | if (max_bitrates < sband->n_bitrates) |
1098 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 1099 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 1100 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 | 1101 | |
bac2fd3d JB |
1102 | for (i = 0; i < sband->n_iftype_data; i++) { |
1103 | const struct ieee80211_sband_iftype_data *iftd; | |
1104 | ||
1105 | iftd = &sband->iftype_data[i]; | |
1106 | ||
4a11174d | 1107 | supp_he = supp_he || iftd->he_cap.has_he; |
820acc81 | 1108 | supp_eht = supp_eht || iftd->eht_cap.has_eht; |
bac2fd3d | 1109 | } |
41cbb0f5 | 1110 | |
75e296e9 JB |
1111 | /* HT, VHT, HE require QoS, thus >= 4 queues */ |
1112 | if (WARN_ON(local->hw.queues < IEEE80211_NUM_ACS && | |
1113 | (supp_ht || supp_vht || supp_he))) | |
1114 | return -EINVAL; | |
1115 | ||
820acc81 IP |
1116 | /* EHT requires HE support */ |
1117 | if (WARN_ON(supp_eht && !supp_he)) | |
1118 | return -EINVAL; | |
1119 | ||
43071d8f FF |
1120 | if (!sband->ht_cap.ht_supported) |
1121 | continue; | |
04ecd257 JB |
1122 | |
1123 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
43071d8f FF |
1124 | local->rx_chains = |
1125 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
1126 | local->rx_chains); | |
1127 | ||
1128 | /* no need to mask, SM_PS_DISABLED has all bits set */ | |
1129 | sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
1130 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
8318d78a | 1131 | } |
f0706e82 | 1132 | |
db3bdcb9 MP |
1133 | /* if low-level driver supports AP, we also support VLAN. |
1134 | * drivers advertising SW_CRYPTO_CONTROL should enable AP_VLAN | |
1135 | * based on their support to transmit SW encrypted packets. | |
1136 | */ | |
1137 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP) && | |
1138 | !ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL)) { | |
7527a782 JB |
1139 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
1140 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
1141 | } | |
f59ac048 LR |
1142 | |
1143 | /* mac80211 always supports monitor */ | |
7527a782 JB |
1144 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
1145 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
1146 | ||
55de908a | 1147 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
1148 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
1149 | const struct ieee80211_iface_combination *c; | |
1150 | int j; | |
1151 | ||
1152 | c = &hw->wiphy->iface_combinations[i]; | |
1153 | ||
8e621fc9 JB |
1154 | for (j = 0; j < c->n_limits; j++) |
1155 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
1156 | c->limits[j].max > 1) | |
1157 | return -EINVAL; | |
1158 | } | |
1159 | ||
5b0ec94f JB |
1160 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
1161 | sizeof(void *) * channels, GFP_KERNEL); | |
1162 | if (!local->int_scan_req) | |
1163 | return -ENOMEM; | |
1164 | ||
9beed8de JB |
1165 | eth_broadcast_addr(local->int_scan_req->bssid); |
1166 | ||
57fbcce3 | 1167 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
5b0ec94f JB |
1168 | if (!local->hw.wiphy->bands[band]) |
1169 | continue; | |
1170 | local->int_scan_req->rates[band] = (u32) -1; | |
1171 | } | |
1172 | ||
5eb5a52d JB |
1173 | #ifndef CONFIG_MAC80211_MESH |
1174 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
1175 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
1176 | #endif | |
1177 | ||
1570ca59 JC |
1178 | /* if the underlying driver supports mesh, mac80211 will (at least) |
1179 | * provide routing of mesh authentication frames to userspace */ | |
1180 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
1181 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
1182 | ||
a621fa4d JB |
1183 | /* mac80211 supports control port protocol changing */ |
1184 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
1185 | ||
30686bf7 | 1186 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 1187 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 1188 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 1189 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 1190 | if (hw->max_signal <= 0) { |
1191 | result = -EINVAL; | |
52e04b4c | 1192 | goto fail_workqueue; |
52512072 | 1193 | } |
1194 | } | |
77965c97 | 1195 | |
3e47bf1c AW |
1196 | /* Mac80211 and therefore all drivers using SW crypto only |
1197 | * are able to handle PTK rekeys and Extended Key ID. | |
622fce81 | 1198 | */ |
3e47bf1c | 1199 | if (!local->ops->set_key) { |
387bc002 AW |
1200 | wiphy_ext_feature_set(local->hw.wiphy, |
1201 | NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); | |
3e47bf1c AW |
1202 | wiphy_ext_feature_set(local->hw.wiphy, |
1203 | NL80211_EXT_FEATURE_EXT_KEY_ID); | |
1204 | } | |
387bc002 | 1205 | |
a916062a NC |
1206 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_ADHOC)) |
1207 | wiphy_ext_feature_set(local->hw.wiphy, | |
1208 | NL80211_EXT_FEATURE_DEL_IBSS_STA); | |
1209 | ||
de95a54b JB |
1210 | /* |
1211 | * Calculate scan IE length -- we need this to alloc | |
1212 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 1213 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
1214 | * information -- SSID is the driver's responsibility. |
1215 | */ | |
dc9f48ce JM |
1216 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
1217 | 3 /* DS Params */; | |
5ef2d41a JB |
1218 | if (supp_ht) |
1219 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 1220 | |
d0e6c21a | 1221 | if (supp_vht) |
ba0afa2f | 1222 | local->scan_ies_len += |
d4950281 | 1223 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 1224 | |
41cbb0f5 | 1225 | /* |
cee04f3c IP |
1226 | * HE cap element is variable in size - set len to allow max size */ |
1227 | if (supp_he) { | |
41cbb0f5 | 1228 | local->scan_ies_len += |
cee04f3c | 1229 | 3 + sizeof(struct ieee80211_he_cap_elem) + |
41cbb0f5 | 1230 | sizeof(struct ieee80211_he_mcs_nss_supp) + |
cee04f3c | 1231 | IEEE80211_HE_PPE_THRES_MAX_LEN; |
820acc81 IP |
1232 | |
1233 | if (supp_eht) | |
1234 | local->scan_ies_len += | |
1235 | 3 + sizeof(struct ieee80211_eht_cap_elem) + | |
1236 | sizeof(struct ieee80211_eht_mcs_nss_supp) + | |
1237 | IEEE80211_EHT_PPE_THRES_MAX_LEN; | |
cee04f3c | 1238 | } |
41cbb0f5 | 1239 | |
de95a54b JB |
1240 | if (!local->ops->hw_scan) { |
1241 | /* For hw_scan, driver needs to set these up. */ | |
1242 | local->hw.wiphy->max_scan_ssids = 4; | |
1243 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1244 | } | |
1245 | ||
1246 | /* | |
1247 | * If the driver supports any scan IEs, then assume the | |
1248 | * limit includes the IEs mac80211 will add, otherwise | |
1249 | * leave it at zero and let the driver sort it out; we | |
1250 | * still pass our IEs to the driver but userspace will | |
1251 | * not be allowed to in that case. | |
1252 | */ | |
1253 | if (local->hw.wiphy->max_scan_ie_len) | |
1254 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
1255 | ||
2475b1cc MS |
1256 | result = ieee80211_init_cipher_suites(local); |
1257 | if (result < 0) | |
52e04b4c | 1258 | goto fail_workqueue; |
25e47c18 | 1259 | |
21f83589 JB |
1260 | if (!local->ops->remain_on_channel) |
1261 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1262 | |
dfe018bf AN |
1263 | /* mac80211 based drivers don't support internal TDLS setup */ |
1264 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1265 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1266 | ||
e9a21949 | 1267 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1268 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1269 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1270 | ||
caf56338 SS |
1271 | /* mac80211 supports multi BSSID, if the driver supports it */ |
1272 | if (ieee80211_hw_check(&local->hw, SUPPORTS_MULTI_BSSID)) { | |
1273 | local->hw.wiphy->support_mbssid = true; | |
1274 | if (ieee80211_hw_check(&local->hw, | |
1275 | SUPPORTS_ONLY_HE_MULTI_BSSID)) | |
1276 | local->hw.wiphy->support_only_he_mbssid = true; | |
1277 | else | |
1278 | local->ext_capa[2] |= | |
1279 | WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1280 | } | |
1281 | ||
8552a434 | 1282 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CNTDWN_COUNTERS_NUM; |
0d06d9ba | 1283 | |
e2530083 JB |
1284 | /* |
1285 | * We use the number of queues for feature tests (QoS, HT) internally | |
1286 | * so restrict them appropriately. | |
1287 | */ | |
e2530083 JB |
1288 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1289 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1290 | |
42935eca | 1291 | local->workqueue = |
d8537548 | 1292 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1293 | if (!local->workqueue) { |
f0706e82 JB |
1294 | result = -ENOMEM; |
1295 | goto fail_workqueue; | |
1296 | } | |
1297 | ||
b306f453 JB |
1298 | /* |
1299 | * The hardware needs headroom for sending the frame, | |
1300 | * and we need some headroom for passing the frame to monitor | |
1301 | * interfaces, but never both at the same time. | |
1302 | */ | |
33ccad35 | 1303 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1304 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1305 | |
b446918b HS |
1306 | /* |
1307 | * if the driver doesn't specify a max listen interval we | |
1308 | * use 5 which should be a safe default | |
1309 | */ | |
ea95bba4 | 1310 | if (local->hw.max_listen_interval == 0) |
b446918b | 1311 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1312 | |
1313 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1314 | ||
ff616381 | 1315 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1316 | |
167e33f4 AB |
1317 | if (!local->hw.max_nan_de_entries) |
1318 | local->hw.max_nan_de_entries = IEEE80211_MAX_NAN_INSTANCE_ID; | |
1319 | ||
b4809e94 THJ |
1320 | if (!local->hw.weight_multiplier) |
1321 | local->hw.weight_multiplier = 1; | |
1322 | ||
4a65cc24 | 1323 | ieee80211_wep_init(local); |
d4c4a9a1 | 1324 | |
24d47300 KB |
1325 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1326 | ||
b57e6b56 MSS |
1327 | ieee80211_led_init(local); |
1328 | ||
dc8b274f THJ |
1329 | result = ieee80211_txq_setup_flows(local); |
1330 | if (result) | |
1331 | goto fail_flows; | |
1332 | ||
f0706e82 | 1333 | rtnl_lock(); |
830f9038 JB |
1334 | result = ieee80211_init_rate_ctrl_alg(local, |
1335 | hw->rate_control_algorithm); | |
52e04b4c | 1336 | rtnl_unlock(); |
f0706e82 | 1337 | if (result < 0) { |
0fb9a9ec JP |
1338 | wiphy_debug(local->hw.wiphy, |
1339 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1340 | goto fail_rate; |
1341 | } | |
1342 | ||
09b4a4fa JB |
1343 | if (local->rate_ctrl) { |
1344 | clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); | |
1345 | if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) | |
1346 | ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1347 | } | |
1348 | ||
1349 | /* | |
1350 | * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, | |
1351 | * or have it when we don't, copy the sband structure and set/clear it. | |
1352 | * This is necessary because rate scaling algorithms could be switched | |
1353 | * and have different support values. | |
1354 | * Print a message so that in the common case the reallocation can be | |
1355 | * avoided. | |
1356 | */ | |
1357 | BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); | |
1358 | for (band = 0; band < NUM_NL80211_BANDS; band++) { | |
1359 | struct ieee80211_supported_band *sband; | |
1360 | bool local_cap, ie_cap; | |
1361 | ||
1362 | local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1363 | ||
1364 | sband = local->hw.wiphy->bands[band]; | |
1365 | if (!sband || !sband->vht_cap.vht_supported) | |
1366 | continue; | |
1367 | ||
1368 | ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & | |
1369 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); | |
1370 | ||
1371 | if (local_cap == ie_cap) | |
1372 | continue; | |
1373 | ||
1374 | sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); | |
48f3b9e9 WY |
1375 | if (!sband) { |
1376 | result = -ENOMEM; | |
09b4a4fa | 1377 | goto fail_rate; |
48f3b9e9 | 1378 | } |
09b4a4fa JB |
1379 | |
1380 | wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", | |
1381 | band); | |
1382 | ||
1383 | sband->vht_cap.vht_mcs.tx_highest ^= | |
1384 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
1385 | ||
1386 | local->hw.wiphy->bands[band] = sband; | |
1387 | local->sband_allocated |= BIT(band); | |
1388 | } | |
1389 | ||
52e04b4c SG |
1390 | result = wiphy_register(local->hw.wiphy); |
1391 | if (result < 0) | |
1392 | goto fail_wiphy_register; | |
1393 | ||
6cb5f3ea JB |
1394 | debugfs_hw_add(local); |
1395 | rate_control_add_debugfs(local); | |
1396 | ||
52e04b4c | 1397 | rtnl_lock(); |
a05829a7 | 1398 | wiphy_lock(hw->wiphy); |
52e04b4c | 1399 | |
8dffff21 | 1400 | /* add one default STA interface if supported */ |
e27513fb | 1401 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1402 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
dd665d23 JB |
1403 | struct vif_params params = {0}; |
1404 | ||
6bab2e19 | 1405 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
dd665d23 | 1406 | NL80211_IFTYPE_STATION, ¶ms); |
8dffff21 | 1407 | if (result) |
0fb9a9ec JP |
1408 | wiphy_warn(local->hw.wiphy, |
1409 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1410 | } |
f0706e82 | 1411 | |
a05829a7 | 1412 | wiphy_unlock(hw->wiphy); |
f0706e82 JB |
1413 | rtnl_unlock(); |
1414 | ||
26b36cfe | 1415 | #ifdef CONFIG_INET |
2b2c009e JO |
1416 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1417 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1418 | if (result) | |
1419 | goto fail_ifa; | |
26b36cfe | 1420 | #endif |
2b2c009e | 1421 | |
a65240c1 JB |
1422 | #if IS_ENABLED(CONFIG_IPV6) |
1423 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1424 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1425 | if (result) | |
1426 | goto fail_ifa6; | |
1427 | #endif | |
1428 | ||
f0706e82 JB |
1429 | return 0; |
1430 | ||
a65240c1 JB |
1431 | #if IS_ENABLED(CONFIG_IPV6) |
1432 | fail_ifa6: | |
93c08c32 | 1433 | #ifdef CONFIG_INET |
a65240c1 JB |
1434 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1435 | #endif | |
1436 | #endif | |
1437 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1438 | fail_ifa: |
93c08c32 | 1439 | #endif |
52e04b4c SG |
1440 | wiphy_unregister(local->hw.wiphy); |
1441 | fail_wiphy_register: | |
54330bf6 JB |
1442 | rtnl_lock(); |
1443 | rate_control_deinitialize(local); | |
10f644a4 | 1444 | ieee80211_remove_interfaces(local); |
f0706e82 | 1445 | rtnl_unlock(); |
52e04b4c | 1446 | fail_rate: |
dc8b274f | 1447 | fail_flows: |
6dd47d97 | 1448 | ieee80211_led_exit(local); |
42935eca | 1449 | destroy_workqueue(local->workqueue); |
10f644a4 | 1450 | fail_workqueue: |
50b2e871 | 1451 | if (local->wiphy_ciphers_allocated) { |
3ffc2a90 | 1452 | kfree(local->hw.wiphy->cipher_suites); |
50b2e871 | 1453 | local->wiphy_ciphers_allocated = false; |
1454 | } | |
11ba964d | 1455 | kfree(local->int_scan_req); |
f0706e82 JB |
1456 | return result; |
1457 | } | |
1458 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1459 | ||
f0706e82 JB |
1460 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1461 | { | |
1462 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1463 | |
1464 | tasklet_kill(&local->tx_pending_tasklet); | |
1465 | tasklet_kill(&local->tasklet); | |
1466 | ||
26b36cfe | 1467 | #ifdef CONFIG_INET |
2b2c009e | 1468 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1469 | #endif |
a65240c1 JB |
1470 | #if IS_ENABLED(CONFIG_IPV6) |
1471 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1472 | #endif | |
10f644a4 | 1473 | |
f0706e82 JB |
1474 | rtnl_lock(); |
1475 | ||
79010420 JB |
1476 | /* |
1477 | * At this point, interface list manipulations are fine | |
1478 | * because the driver cannot be handing us frames any | |
1479 | * more and the tasklet is killed. | |
1480 | */ | |
75636525 | 1481 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1482 | |
f0706e82 JB |
1483 | rtnl_unlock(); |
1484 | ||
aaa016cc | 1485 | cancel_delayed_work_sync(&local->roc_work); |
258086a4 | 1486 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1487 | cancel_work_sync(&local->reconfig_filter); |
18db594a | 1488 | flush_work(&local->sched_scan_stopped_work); |
4a199068 | 1489 | flush_work(&local->radar_detected_work); |
3ac64bee | 1490 | |
f0706e82 | 1491 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1492 | rate_control_deinitialize(local); |
1493 | ||
f64f9e71 JP |
1494 | if (skb_queue_len(&local->skb_queue) || |
1495 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1496 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1497 | skb_queue_purge(&local->skb_queue); |
1498 | skb_queue_purge(&local->skb_queue_unreliable); | |
1499 | ||
f0706e82 | 1500 | wiphy_unregister(local->hw.wiphy); |
52e04b4c | 1501 | destroy_workqueue(local->workqueue); |
f0706e82 | 1502 | ieee80211_led_exit(local); |
5ba63533 | 1503 | kfree(local->int_scan_req); |
f0706e82 JB |
1504 | } |
1505 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1506 | ||
a729cff8 JB |
1507 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1508 | { | |
1509 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1510 | kfree_skb(p); | |
1511 | return 0; | |
1512 | } | |
1513 | ||
f0706e82 JB |
1514 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1515 | { | |
1516 | struct ieee80211_local *local = hw_to_local(hw); | |
09b4a4fa | 1517 | enum nl80211_band band; |
f0706e82 | 1518 | |
c771c9d8 | 1519 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1520 | mutex_destroy(&local->mtx); |
c771c9d8 | 1521 | |
50b2e871 | 1522 | if (local->wiphy_ciphers_allocated) { |
3ffc2a90 | 1523 | kfree(local->hw.wiphy->cipher_suites); |
50b2e871 | 1524 | local->wiphy_ciphers_allocated = false; |
1525 | } | |
3ffc2a90 | 1526 | |
a729cff8 JB |
1527 | idr_for_each(&local->ack_status_frames, |
1528 | ieee80211_free_ack_frame, NULL); | |
1529 | idr_destroy(&local->ack_status_frames); | |
1530 | ||
54330bf6 JB |
1531 | sta_info_stop(local); |
1532 | ||
8d5c2585 JB |
1533 | ieee80211_free_led_names(local); |
1534 | ||
09b4a4fa JB |
1535 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1536 | if (!(local->sband_allocated & BIT(band))) | |
1537 | continue; | |
1538 | kfree(local->hw.wiphy->bands[band]); | |
1539 | } | |
1540 | ||
f0706e82 JB |
1541 | wiphy_free(local->hw.wiphy); |
1542 | } | |
1543 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1544 | ||
f0706e82 JB |
1545 | static int __init ieee80211_init(void) |
1546 | { | |
1547 | struct sk_buff *skb; | |
1548 | int ret; | |
1549 | ||
e039fa4a JB |
1550 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1551 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1552 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1553 | |
cccf129f FF |
1554 | ret = rc80211_minstrel_init(); |
1555 | if (ret) | |
1556 | return ret; | |
1557 | ||
47846c9b JB |
1558 | ret = ieee80211_iface_init(); |
1559 | if (ret) | |
1560 | goto err_netdev; | |
e9f207f0 | 1561 | |
f0706e82 | 1562 | return 0; |
47846c9b | 1563 | err_netdev: |
47846c9b JB |
1564 | rc80211_minstrel_exit(); |
1565 | ||
1566 | return ret; | |
f0706e82 JB |
1567 | } |
1568 | ||
f0706e82 JB |
1569 | static void __exit ieee80211_exit(void) |
1570 | { | |
cccf129f | 1571 | rc80211_minstrel_exit(); |
ac71c691 | 1572 | |
bf7cd94d | 1573 | ieee80211s_stop(); |
902acc78 | 1574 | |
47846c9b | 1575 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1576 | |
1577 | rcu_barrier(); | |
f0706e82 JB |
1578 | } |
1579 | ||
1580 | ||
ca9938fe | 1581 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1582 | module_exit(ieee80211_exit); |
1583 | ||
1584 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1585 | MODULE_LICENSE("GPL"); |