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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 |
15ddba5f | 8 | * Copyright (C) 2018-2023 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> |
baa951a1 | 25 | #include <net/dropreason.h> |
f0706e82 | 26 | #include <net/cfg80211.h> |
a65240c1 | 27 | #include <net/addrconf.h> |
f0706e82 | 28 | |
f0706e82 | 29 | #include "ieee80211_i.h" |
24487981 | 30 | #include "driver-ops.h" |
2c8dccc7 | 31 | #include "rate.h" |
f7a92144 | 32 | #include "mesh.h" |
f0706e82 | 33 | #include "wep.h" |
2c8dccc7 | 34 | #include "led.h" |
e9f207f0 | 35 | #include "debugfs.h" |
f0706e82 | 36 | |
0d143fe1 | 37 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 38 | { |
3ac64bee | 39 | u64 mc; |
4150c572 JB |
40 | unsigned int changed_flags; |
41 | unsigned int new_flags = 0; | |
42 | ||
53918994 | 43 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
44 | new_flags |= FIF_ALLMULTI; |
45 | ||
8a690674 BG |
46 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
47 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) | |
8cc9a739 MW |
48 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
49 | ||
7be5086d JB |
50 | if (local->fif_probe_req || local->probe_req_reg) |
51 | new_flags |= FIF_PROBE_REQ; | |
52 | ||
8cc9a739 MW |
53 | if (local->fif_fcsfail) |
54 | new_flags |= FIF_FCSFAIL; | |
55 | ||
56 | if (local->fif_plcpfail) | |
57 | new_flags |= FIF_PLCPFAIL; | |
58 | ||
59 | if (local->fif_control) | |
60 | new_flags |= FIF_CONTROL; | |
61 | ||
62 | if (local->fif_other_bss) | |
63 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 64 | |
e3b90ca2 IP |
65 | if (local->fif_pspoll) |
66 | new_flags |= FIF_PSPOLL; | |
67 | ||
873b1cf6 JM |
68 | if (local->rx_mcast_action_reg) |
69 | new_flags |= FIF_MCAST_ACTION; | |
70 | ||
3ac64bee | 71 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
72 | changed_flags = local->filter_flags ^ new_flags; |
73 | ||
22bedad3 | 74 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
75 | spin_unlock_bh(&local->filter_lock); |
76 | ||
4150c572 JB |
77 | /* be a bit nasty */ |
78 | new_flags |= (1<<31); | |
79 | ||
3ac64bee | 80 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
81 | |
82 | WARN_ON(new_flags & (1<<31)); | |
83 | ||
84 | local->filter_flags = new_flags & ~(1<<31); | |
85 | } | |
86 | ||
a6add8be JB |
87 | static void ieee80211_reconfig_filter(struct wiphy *wiphy, |
88 | struct wiphy_work *work) | |
3ac64bee JB |
89 | { |
90 | struct ieee80211_local *local = | |
91 | container_of(work, struct ieee80211_local, reconfig_filter); | |
92 | ||
93 | ieee80211_configure_filter(local); | |
94 | } | |
95 | ||
0a44dfc0 JB |
96 | static u32 ieee80211_calc_hw_conf_chan(struct ieee80211_local *local, |
97 | struct ieee80211_chanctx_conf *ctx) | |
b2c258fb | 98 | { |
1ea6f9c0 | 99 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 100 | struct cfg80211_chan_def chandef = {}; |
0a44dfc0 JB |
101 | struct cfg80211_chan_def *oper = NULL; |
102 | enum ieee80211_smps_mode smps_mode = IEEE80211_SMPS_STATIC; | |
55de908a | 103 | u32 changed = 0; |
e8975581 | 104 | int power; |
ffd2778b | 105 | u32 offchannel_flag; |
f0706e82 | 106 | |
0a44dfc0 JB |
107 | if (!local->emulate_chanctx) |
108 | return 0; | |
109 | ||
ffd2778b | 110 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 111 | |
0a44dfc0 JB |
112 | if (ctx && !WARN_ON(!ctx->def.chan)) { |
113 | oper = &ctx->def; | |
114 | if (ctx->rx_chains_static > 1) | |
115 | smps_mode = IEEE80211_SMPS_OFF; | |
116 | else if (ctx->rx_chains_dynamic > 1) | |
117 | smps_mode = IEEE80211_SMPS_DYNAMIC; | |
118 | else | |
119 | smps_mode = IEEE80211_SMPS_STATIC; | |
120 | } | |
121 | ||
7ca15a0a SW |
122 | if (local->scan_chandef.chan) { |
123 | chandef = local->scan_chandef; | |
b23b025f | 124 | } else if (local->tmp_channel) { |
675a0b04 KB |
125 | chandef.chan = local->tmp_channel; |
126 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
127 | chandef.center_freq1 = chandef.chan->center_freq; | |
b6011960 | 128 | chandef.freq1_offset = chandef.chan->freq_offset; |
0a44dfc0 JB |
129 | } else if (oper) { |
130 | chandef = *oper; | |
131 | } else { | |
132 | chandef = local->dflt_chandef; | |
133 | } | |
675a0b04 | 134 | |
0a44dfc0 JB |
135 | if (WARN(!cfg80211_chandef_valid(&chandef), |
136 | "control:%d.%03d MHz width:%d center: %d.%03d/%d MHz", | |
137 | chandef.chan ? chandef.chan->center_freq : -1, | |
138 | chandef.chan ? chandef.chan->freq_offset : 0, | |
139 | chandef.width, chandef.center_freq1, chandef.freq1_offset, | |
140 | chandef.center_freq2)) | |
141 | return 0; | |
675a0b04 | 142 | |
0a44dfc0 | 143 | if (!oper || !cfg80211_chandef_identical(&chandef, oper)) |
b23b025f BG |
144 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
145 | else | |
146 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
147 | ||
ffd2778b | 148 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 149 | |
0a44dfc0 | 150 | /* force it also for scanning, since drivers might config differently */ |
19b815ed | 151 | if (offchannel_flag || local->scanning || local->in_reconfig || |
0a44dfc0 | 152 | !cfg80211_chandef_identical(&local->hw.conf.chandef, &chandef)) { |
675a0b04 | 153 | local->hw.conf.chandef = chandef; |
e8975581 JB |
154 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
155 | } | |
8318d78a | 156 | |
0f78231b JB |
157 | if (!conf_is_ht(&local->hw.conf)) { |
158 | /* | |
159 | * mac80211.h documents that this is only valid | |
160 | * when the channel is set to an HT type, and | |
161 | * that otherwise STATIC is used. | |
162 | */ | |
163 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
0a44dfc0 JB |
164 | } else if (local->hw.conf.smps_mode != smps_mode) { |
165 | local->hw.conf.smps_mode = smps_mode; | |
0f78231b JB |
166 | changed |= IEEE80211_CONF_CHANGE_SMPS; |
167 | } | |
168 | ||
0430c883 | 169 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 170 | |
1ea6f9c0 JB |
171 | rcu_read_lock(); |
172 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
d0a9123e | 173 | if (!rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf)) |
1ea6f9c0 | 174 | continue; |
764152ff FF |
175 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
176 | continue; | |
db6d9e9e BG |
177 | if (sdata->vif.bss_conf.txpower == INT_MIN) |
178 | continue; | |
1ea6f9c0 JB |
179 | power = min(power, sdata->vif.bss_conf.txpower); |
180 | } | |
181 | rcu_read_unlock(); | |
a8302de9 | 182 | |
e8975581 JB |
183 | if (local->hw.conf.power_level != power) { |
184 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
185 | local->hw.conf.power_level = power; | |
186 | } | |
b2c258fb | 187 | |
55de908a JB |
188 | return changed; |
189 | } | |
190 | ||
191 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) | |
192 | { | |
193 | int ret = 0; | |
194 | ||
195 | might_sleep(); | |
196 | ||
0a44dfc0 JB |
197 | WARN_ON(changed & (IEEE80211_CONF_CHANGE_CHANNEL | |
198 | IEEE80211_CONF_CHANGE_POWER | | |
199 | IEEE80211_CONF_CHANGE_SMPS)); | |
55de908a | 200 | |
e8975581 | 201 | if (changed && local->open_count) { |
24487981 | 202 | ret = drv_config(local, changed); |
d73782fd | 203 | /* |
447107fb | 204 | * Goal: |
d73782fd JB |
205 | * HW reconfiguration should never fail, the driver has told |
206 | * us what it can support so it should live up to that promise. | |
447107fb RC |
207 | * |
208 | * Current status: | |
209 | * rfkill is not integrated with mac80211 and a | |
210 | * configuration command can thus fail if hardware rfkill | |
211 | * is enabled | |
212 | * | |
213 | * FIXME: integrate rfkill with mac80211 and then add this | |
214 | * WARN_ON() back | |
215 | * | |
d73782fd | 216 | */ |
447107fb | 217 | /* WARN_ON(ret); */ |
d73782fd | 218 | } |
f0706e82 | 219 | |
b2c258fb JB |
220 | return ret; |
221 | } | |
f0706e82 | 222 | |
0a44dfc0 JB |
223 | /* for scanning, offchannel and chanctx emulation only */ |
224 | static int _ieee80211_hw_conf_chan(struct ieee80211_local *local, | |
225 | struct ieee80211_chanctx_conf *ctx) | |
226 | { | |
227 | u32 changed; | |
228 | ||
229 | if (!local->open_count) | |
230 | return 0; | |
231 | ||
232 | changed = ieee80211_calc_hw_conf_chan(local, ctx); | |
233 | if (!changed) | |
234 | return 0; | |
235 | ||
236 | return drv_config(local, changed); | |
237 | } | |
238 | ||
239 | int ieee80211_hw_conf_chan(struct ieee80211_local *local) | |
240 | { | |
241 | struct ieee80211_chanctx *ctx; | |
242 | ||
243 | ctx = list_first_entry_or_null(&local->chanctx_list, | |
244 | struct ieee80211_chanctx, | |
245 | list); | |
246 | ||
247 | return _ieee80211_hw_conf_chan(local, ctx ? &ctx->conf : NULL); | |
248 | } | |
249 | ||
250 | void ieee80211_hw_conf_init(struct ieee80211_local *local) | |
251 | { | |
252 | u32 changed = ~(IEEE80211_CONF_CHANGE_CHANNEL | | |
253 | IEEE80211_CONF_CHANGE_POWER | | |
254 | IEEE80211_CONF_CHANGE_SMPS); | |
255 | ||
256 | if (WARN_ON(!local->open_count)) | |
257 | return; | |
258 | ||
259 | if (local->emulate_chanctx) { | |
260 | struct ieee80211_chanctx *ctx; | |
261 | ||
262 | ctx = list_first_entry_or_null(&local->chanctx_list, | |
263 | struct ieee80211_chanctx, | |
264 | list); | |
265 | ||
266 | changed |= ieee80211_calc_hw_conf_chan(local, | |
267 | ctx ? &ctx->conf : NULL); | |
268 | } | |
269 | ||
270 | WARN_ON(drv_config(local, changed)); | |
271 | } | |
272 | ||
273 | int ieee80211_emulate_add_chanctx(struct ieee80211_hw *hw, | |
274 | struct ieee80211_chanctx_conf *ctx) | |
275 | { | |
276 | struct ieee80211_local *local = hw_to_local(hw); | |
277 | ||
278 | local->hw.conf.radar_enabled = ctx->radar_enabled; | |
279 | ||
280 | return _ieee80211_hw_conf_chan(local, ctx); | |
281 | } | |
282 | EXPORT_SYMBOL(ieee80211_emulate_add_chanctx); | |
283 | ||
284 | void ieee80211_emulate_remove_chanctx(struct ieee80211_hw *hw, | |
285 | struct ieee80211_chanctx_conf *ctx) | |
286 | { | |
287 | struct ieee80211_local *local = hw_to_local(hw); | |
288 | ||
289 | local->hw.conf.radar_enabled = false; | |
290 | ||
291 | _ieee80211_hw_conf_chan(local, NULL); | |
292 | } | |
293 | EXPORT_SYMBOL(ieee80211_emulate_remove_chanctx); | |
294 | ||
295 | void ieee80211_emulate_change_chanctx(struct ieee80211_hw *hw, | |
296 | struct ieee80211_chanctx_conf *ctx, | |
297 | u32 changed) | |
298 | { | |
299 | struct ieee80211_local *local = hw_to_local(hw); | |
300 | ||
301 | local->hw.conf.radar_enabled = ctx->radar_enabled; | |
302 | ||
303 | _ieee80211_hw_conf_chan(local, ctx); | |
304 | } | |
305 | EXPORT_SYMBOL(ieee80211_emulate_change_chanctx); | |
306 | ||
307 | int ieee80211_emulate_switch_vif_chanctx(struct ieee80211_hw *hw, | |
308 | struct ieee80211_vif_chanctx_switch *vifs, | |
309 | int n_vifs, | |
310 | enum ieee80211_chanctx_switch_mode mode) | |
311 | { | |
312 | struct ieee80211_local *local = hw_to_local(hw); | |
313 | ||
314 | if (n_vifs <= 0) | |
315 | return -EINVAL; | |
316 | ||
317 | local->hw.conf.radar_enabled = vifs[0].new_ctx->radar_enabled; | |
318 | _ieee80211_hw_conf_chan(local, vifs[0].new_ctx); | |
319 | ||
320 | return 0; | |
321 | } | |
322 | EXPORT_SYMBOL(ieee80211_emulate_switch_vif_chanctx); | |
323 | ||
7b7090b4 JB |
324 | #define BSS_CHANGED_VIF_CFG_FLAGS (BSS_CHANGED_ASSOC |\ |
325 | BSS_CHANGED_IDLE |\ | |
a3b8008d | 326 | BSS_CHANGED_PS |\ |
7b7090b4 JB |
327 | BSS_CHANGED_IBSS |\ |
328 | BSS_CHANGED_ARP_FILTER |\ | |
041a74cb | 329 | BSS_CHANGED_SSID |\ |
8f500fbc AB |
330 | BSS_CHANGED_MLD_VALID_LINKS |\ |
331 | BSS_CHANGED_MLD_TTLM) | |
7b7090b4 | 332 | |
471b3efd | 333 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
7b7090b4 | 334 | u64 changed) |
d9430a32 | 335 | { |
471b3efd JB |
336 | struct ieee80211_local *local = sdata->local; |
337 | ||
7b7090b4 JB |
338 | might_sleep(); |
339 | ||
a0ca76e5 JB |
340 | WARN_ON_ONCE(ieee80211_vif_is_mld(&sdata->vif)); |
341 | ||
990baec0 | 342 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
471b3efd JB |
343 | return; |
344 | ||
7b7090b4 JB |
345 | if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON | |
346 | BSS_CHANGED_BEACON_ENABLED) && | |
347 | sdata->vif.type != NL80211_IFTYPE_AP && | |
348 | sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
349 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT && | |
350 | sdata->vif.type != NL80211_IFTYPE_OCB)) | |
351 | return; | |
352 | ||
353 | if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE || | |
354 | sdata->vif.type == NL80211_IFTYPE_NAN || | |
355 | (sdata->vif.type == NL80211_IFTYPE_MONITOR && | |
356 | !sdata->vif.bss_conf.mu_mimo_owner && | |
357 | !(changed & BSS_CHANGED_TXPOWER)))) | |
358 | return; | |
359 | ||
360 | if (!check_sdata_in_driver(sdata)) | |
361 | return; | |
362 | ||
363 | if (changed & BSS_CHANGED_VIF_CFG_FLAGS) { | |
364 | u64 ch = changed & BSS_CHANGED_VIF_CFG_FLAGS; | |
365 | ||
366 | trace_drv_vif_cfg_changed(local, sdata, changed); | |
367 | if (local->ops->vif_cfg_changed) | |
368 | local->ops->vif_cfg_changed(&local->hw, &sdata->vif, ch); | |
369 | } | |
370 | ||
371 | if (changed & ~BSS_CHANGED_VIF_CFG_FLAGS) { | |
372 | u64 ch = changed & ~BSS_CHANGED_VIF_CFG_FLAGS; | |
373 | ||
d8675a63 | 374 | trace_drv_link_info_changed(local, sdata, &sdata->vif.bss_conf, |
7840bd46 | 375 | changed); |
7b7090b4 JB |
376 | if (local->ops->link_info_changed) |
377 | local->ops->link_info_changed(&local->hw, &sdata->vif, | |
7840bd46 | 378 | &sdata->vif.bss_conf, ch); |
7b7090b4 JB |
379 | } |
380 | ||
381 | if (local->ops->bss_info_changed) | |
382 | local->ops->bss_info_changed(&local->hw, &sdata->vif, | |
383 | &sdata->vif.bss_conf, changed); | |
384 | trace_drv_return_void(local); | |
385 | } | |
386 | ||
387 | void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, | |
388 | u64 changed) | |
389 | { | |
390 | struct ieee80211_local *local = sdata->local; | |
391 | ||
392 | WARN_ON_ONCE(changed & ~BSS_CHANGED_VIF_CFG_FLAGS); | |
393 | ||
394 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) | |
395 | return; | |
396 | ||
397 | drv_vif_cfg_changed(local, sdata, changed); | |
398 | } | |
399 | ||
400 | void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, | |
d8675a63 JB |
401 | struct ieee80211_link_data *link, |
402 | u64 changed) | |
7b7090b4 JB |
403 | { |
404 | struct ieee80211_local *local = sdata->local; | |
405 | ||
406 | WARN_ON_ONCE(changed & BSS_CHANGED_VIF_CFG_FLAGS); | |
407 | ||
408 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) | |
409 | return; | |
410 | ||
591e73ee JB |
411 | if (!check_sdata_in_driver(sdata)) |
412 | return; | |
413 | ||
d8675a63 | 414 | drv_link_info_changed(local, sdata, link->conf, link->link_id, changed); |
d9430a32 DD |
415 | } |
416 | ||
15ddba5f | 417 | u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 418 | { |
bda3933a JB |
419 | sdata->vif.bss_conf.use_cts_prot = false; |
420 | sdata->vif.bss_conf.use_short_preamble = false; | |
421 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
422 | return BSS_CHANGED_ERP_CTS_PROT | |
423 | BSS_CHANGED_ERP_PREAMBLE | | |
424 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
425 | } |
426 | ||
321028bc | 427 | /* context: requires softirqs disabled */ |
177c6ae9 | 428 | void ieee80211_handle_queued_frames(struct ieee80211_local *local) |
f0706e82 | 429 | { |
f0706e82 | 430 | struct sk_buff *skb; |
f0706e82 JB |
431 | |
432 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
433 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
434 | switch (skb->pkt_type) { | |
435 | case IEEE80211_RX_MSG: | |
51fb61e7 | 436 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
437 | * netstack. */ |
438 | skb->pkt_type = 0; | |
005e472b | 439 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
440 | break; |
441 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 442 | skb->pkt_type = 0; |
2703bc85 | 443 | ieee80211_tx_status_skb(&local->hw, skb); |
f0706e82 | 444 | break; |
f4ea83dd | 445 | default: |
5e3f3089 LF |
446 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
447 | skb->pkt_type); | |
f0706e82 JB |
448 | dev_kfree_skb(skb); |
449 | break; | |
450 | } | |
451 | } | |
452 | } | |
453 | ||
177c6ae9 JB |
454 | static void ieee80211_tasklet_handler(struct tasklet_struct *t) |
455 | { | |
456 | struct ieee80211_local *local = from_tasklet(local, t, tasklet); | |
457 | ||
458 | ieee80211_handle_queued_frames(local); | |
459 | } | |
460 | ||
f2753ddb JB |
461 | static void ieee80211_restart_work(struct work_struct *work) |
462 | { | |
463 | struct ieee80211_local *local = | |
464 | container_of(work, struct ieee80211_local, restart_work); | |
ab499db8 | 465 | struct ieee80211_sub_if_data *sdata; |
f5baf287 | 466 | int ret; |
f2753ddb | 467 | |
bc86863d | 468 | flush_workqueue(local->workqueue); |
45daaa13 IP |
469 | |
470 | rtnl_lock(); | |
276e189f JB |
471 | /* we might do interface manipulations, so need both */ |
472 | wiphy_lock(local->hw.wiphy); | |
b920590f | 473 | wiphy_work_flush(local->hw.wiphy, NULL); |
bc86863d | 474 | |
d43c6b6e DS |
475 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
476 | "%s called with hardware scan in progress\n", __func__); | |
bc86863d | 477 | |
f3ffb6c3 EG |
478 | list_for_each_entry(sdata, &local->interfaces, list) { |
479 | /* | |
480 | * XXX: there may be more work for other vif types and even | |
481 | * for station mode: a good thing would be to run most of | |
482 | * the iface type's dependent _stop (ieee80211_mg_stop, | |
483 | * ieee80211_ibss_stop) etc... | |
484 | * For now, fix only the specific bug that was seen: race | |
485 | * between csa_connection_drop_work and us. | |
486 | */ | |
487 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { | |
488 | /* | |
489 | * This worker is scheduled from the iface worker that | |
490 | * runs on mac80211's workqueue, so we can't be | |
491 | * scheduling this worker after the cancel right here. | |
492 | * The exception is ieee80211_chswitch_done. | |
493 | * Then we can have a race... | |
494 | */ | |
4b8d43f1 JB |
495 | wiphy_work_cancel(local->hw.wiphy, |
496 | &sdata->u.mgd.csa_connection_drop_work); | |
076fc877 | 497 | if (sdata->vif.bss_conf.csa_active) |
7dd231eb | 498 | ieee80211_sta_connection_lost(sdata, |
53da4c45 JB |
499 | WLAN_REASON_UNSPECIFIED, |
500 | false); | |
f3ffb6c3 | 501 | } |
e3208fb7 JB |
502 | wiphy_delayed_work_flush(local->hw.wiphy, |
503 | &sdata->dec_tailroom_needed_wk); | |
f3ffb6c3 | 504 | } |
4136c422 | 505 | ieee80211_scan_cancel(local); |
470f4d61 EP |
506 | |
507 | /* make sure any new ROC will consider local->in_reconfig */ | |
97c19e42 JB |
508 | wiphy_delayed_work_flush(local->hw.wiphy, &local->roc_work); |
509 | wiphy_work_flush(local->hw.wiphy, &local->hw_roc_done); | |
470f4d61 | 510 | |
2316380f SS |
511 | /* wait for all packet processing to be done */ |
512 | synchronize_net(); | |
513 | ||
f5baf287 | 514 | ret = ieee80211_reconfig(local); |
a05829a7 | 515 | wiphy_unlock(local->hw.wiphy); |
f5baf287 JB |
516 | |
517 | if (ret) | |
518 | cfg80211_shutdown_all_interfaces(local->hw.wiphy); | |
519 | ||
f2753ddb JB |
520 | rtnl_unlock(); |
521 | } | |
522 | ||
523 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
524 | { | |
525 | struct ieee80211_local *local = hw_to_local(hw); | |
526 | ||
b5878a2d JB |
527 | trace_api_restart_hw(local); |
528 | ||
b196d031 MB |
529 | wiphy_info(hw->wiphy, |
530 | "Hardware restart was requested\n"); | |
531 | ||
18145c69 | 532 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 | 533 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
534 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
535 | false); | |
f2753ddb | 536 | |
04800ada AN |
537 | /* |
538 | * Stop all Rx during the reconfig. We don't want state changes | |
539 | * or driver callbacks while this is in progress. | |
540 | */ | |
541 | local->in_reconfig = true; | |
542 | barrier(); | |
543 | ||
43d6df00 | 544 | queue_work(system_freezable_wq, &local->restart_work); |
f2753ddb JB |
545 | } |
546 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
547 | ||
26b36cfe | 548 | #ifdef CONFIG_INET |
2b2c009e JO |
549 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
550 | unsigned long data, void *arg) | |
551 | { | |
552 | struct in_ifaddr *ifa = arg; | |
553 | struct ieee80211_local *local = | |
554 | container_of(nb, struct ieee80211_local, | |
555 | ifa_notifier); | |
556 | struct net_device *ndev = ifa->ifa_dev->dev; | |
557 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 558 | struct in_device *idev; |
2b2c009e | 559 | struct ieee80211_sub_if_data *sdata; |
f276e20b | 560 | struct ieee80211_vif_cfg *vif_cfg; |
2b2c009e | 561 | struct ieee80211_if_managed *ifmgd; |
68542962 | 562 | int c = 0; |
2b2c009e JO |
563 | |
564 | /* Make sure it's our interface that got changed */ | |
565 | if (!wdev) | |
566 | return NOTIFY_DONE; | |
567 | ||
730538ed | 568 | if (wdev->wiphy != local->hw.wiphy || !wdev->registered) |
2b2c009e JO |
569 | return NOTIFY_DONE; |
570 | ||
2b2c009e | 571 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
f276e20b | 572 | vif_cfg = &sdata->vif.cfg; |
2b2c009e JO |
573 | |
574 | /* ARP filtering is only supported in managed mode */ | |
575 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
576 | return NOTIFY_DONE; | |
577 | ||
95ae6b22 | 578 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
579 | if (!idev) |
580 | return NOTIFY_DONE; | |
581 | ||
2b2c009e | 582 | ifmgd = &sdata->u.mgd; |
730538ed JB |
583 | |
584 | /* | |
585 | * The nested here is needed to convince lockdep that this is | |
586 | * all OK. Yes, we lock the wiphy mutex here while we already | |
587 | * hold the notifier rwsem, that's the normal case. And yes, | |
588 | * we also acquire the notifier rwsem again when unregistering | |
589 | * a netdev while we already hold the wiphy mutex, so it does | |
590 | * look like a typical ABBA deadlock. | |
591 | * | |
592 | * However, both of these things happen with the RTNL held | |
593 | * already. Therefore, they can't actually happen, since the | |
594 | * lock orders really are ABC and ACB, which is fine due to | |
595 | * the RTNL (A). | |
596 | * | |
597 | * We still need to prevent recursion, which is accomplished | |
598 | * by the !wdev->registered check above. | |
599 | */ | |
600 | mutex_lock_nested(&local->hw.wiphy->mtx, 1); | |
601 | __acquire(&local->hw.wiphy->mtx); | |
68542962 | 602 | |
f276e20b | 603 | /* Copy the addresses to the vif config list */ |
2638eb8b | 604 | ifa = rtnl_dereference(idev->ifa_list); |
0f19b41e JB |
605 | while (ifa) { |
606 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
f276e20b | 607 | vif_cfg->arp_addr_list[c] = ifa->ifa_address; |
2638eb8b | 608 | ifa = rtnl_dereference(ifa->ifa_next); |
68542962 JO |
609 | c++; |
610 | } | |
611 | ||
f276e20b | 612 | vif_cfg->arp_addr_cnt = c; |
68542962 | 613 | |
53d69c39 | 614 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 615 | if (ifmgd->associated) |
7b7090b4 | 616 | ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_ARP_FILTER); |
68542962 | 617 | |
730538ed | 618 | wiphy_unlock(local->hw.wiphy); |
2b2c009e | 619 | |
8bd811aa | 620 | return NOTIFY_OK; |
2b2c009e | 621 | } |
26b36cfe | 622 | #endif |
2b2c009e | 623 | |
a65240c1 JB |
624 | #if IS_ENABLED(CONFIG_IPV6) |
625 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
626 | unsigned long data, void *arg) | |
627 | { | |
628 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
629 | struct inet6_dev *idev = ifa->idev; | |
630 | struct net_device *ndev = ifa->idev->dev; | |
631 | struct ieee80211_local *local = | |
632 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
633 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
634 | struct ieee80211_sub_if_data *sdata; | |
635 | ||
636 | /* Make sure it's our interface that got changed */ | |
637 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
638 | return NOTIFY_DONE; | |
639 | ||
640 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
641 | ||
642 | /* | |
643 | * For now only support station mode. This is mostly because | |
644 | * doing AP would have to handle AP_VLAN in some way ... | |
645 | */ | |
646 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
647 | return NOTIFY_DONE; | |
648 | ||
649 | drv_ipv6_addr_change(local, sdata, idev); | |
650 | ||
8bd811aa | 651 | return NOTIFY_OK; |
a65240c1 JB |
652 | } |
653 | #endif | |
654 | ||
2e161f78 JB |
655 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
656 | static const struct ieee80211_txrx_stypes | |
657 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
658 | [NL80211_IFTYPE_ADHOC] = { | |
659 | .tx = 0xffff, | |
3bfda62c WH |
660 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
661 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
662 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
663 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
664 | }, |
665 | [NL80211_IFTYPE_STATION] = { | |
666 | .tx = 0xffff, | |
ff74c51e IP |
667 | /* |
668 | * To support Pre Association Security Negotiation (PASN) while | |
669 | * already associated to one AP, allow user space to register to | |
670 | * Rx authentication frames, so that the user space logic would | |
671 | * be able to receive/handle authentication frames from a | |
672 | * different AP as part of PASN. | |
673 | * It is expected that user space would intelligently register | |
674 | * for Rx authentication frames, i.e., only when PASN is used | |
675 | * and configure a match filter only for PASN authentication | |
676 | * algorithm, as otherwise the MLME functionality of mac80211 | |
677 | * would be broken. | |
678 | */ | |
2e161f78 | 679 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
ff74c51e | 680 | BIT(IEEE80211_STYPE_AUTH >> 4) | |
2e161f78 JB |
681 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
682 | }, | |
683 | [NL80211_IFTYPE_AP] = { | |
684 | .tx = 0xffff, | |
685 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
686 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
687 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
688 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
689 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
690 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
691 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
692 | }, | |
693 | [NL80211_IFTYPE_AP_VLAN] = { | |
694 | /* copy AP */ | |
695 | .tx = 0xffff, | |
696 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
697 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
698 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
699 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
700 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
701 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
702 | BIT(IEEE80211_STYPE_ACTION >> 4), |
703 | }, | |
704 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
705 | .tx = 0xffff, | |
706 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
707 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
708 | }, | |
709 | [NL80211_IFTYPE_P2P_GO] = { | |
710 | .tx = 0xffff, | |
711 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
712 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
713 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
714 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
715 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
716 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
717 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
718 | }, | |
c7108a71 JC |
719 | [NL80211_IFTYPE_MESH_POINT] = { |
720 | .tx = 0xffff, | |
71839121 JC |
721 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
722 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
723 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 724 | }, |
f142c6b9 JB |
725 | [NL80211_IFTYPE_P2P_DEVICE] = { |
726 | .tx = 0xffff, | |
727 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
728 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
729 | }, | |
2e161f78 JB |
730 | }; |
731 | ||
ef96a842 BG |
732 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
733 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
734 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
735 | ||
736 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
737 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 738 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 739 | IEEE80211_HT_CAP_SGI_40 | |
d9bb4108 SM |
740 | IEEE80211_HT_CAP_TX_STBC | |
741 | IEEE80211_HT_CAP_RX_STBC | | |
9a07bf50 JM |
742 | IEEE80211_HT_CAP_LDPC_CODING | |
743 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
744 | .mcs = { |
745 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
746 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
747 | }, | |
748 | }; | |
749 | ||
dd5ecfea JB |
750 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
751 | .vht_cap_info = | |
752 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
753 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
754 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
67d1ba8a | 755 | IEEE80211_VHT_CAP_RXSTBC_MASK | |
dd5ecfea JB |
756 | IEEE80211_VHT_CAP_TXSTBC | |
757 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
758 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
759 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
760 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
761 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
762 | .supp_mcs = { | |
763 | .rx_mcs_map = cpu_to_le16(~0), | |
764 | .tx_mcs_map = cpu_to_le16(~0), | |
765 | }, | |
766 | }; | |
767 | ||
ad28757e BG |
768 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
769 | const struct ieee80211_ops *ops, | |
770 | const char *requested_name) | |
f0706e82 | 771 | { |
f0706e82 | 772 | struct ieee80211_local *local; |
96f5e66e | 773 | int priv_size, i; |
f0706e82 | 774 | struct wiphy *wiphy; |
0a44dfc0 | 775 | bool emulate_chanctx; |
f0706e82 | 776 | |
c0af0734 JB |
777 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
778 | !ops->add_interface || !ops->remove_interface || | |
107395f9 | 779 | !ops->configure_filter || !ops->wake_tx_queue)) |
c0af0734 JB |
780 | return NULL; |
781 | ||
f09603a2 JB |
782 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
783 | return NULL; | |
7b7090b4 JB |
784 | |
785 | if (WARN_ON(!!ops->link_info_changed != !!ops->vif_cfg_changed || | |
786 | (ops->link_info_changed && ops->bss_info_changed))) | |
787 | return NULL; | |
f09603a2 | 788 | |
e269d860 | 789 | /* check all or no channel context operations exist */ |
0a44dfc0 JB |
790 | if (ops->add_chanctx == ieee80211_emulate_add_chanctx && |
791 | ops->remove_chanctx == ieee80211_emulate_remove_chanctx && | |
792 | ops->change_chanctx == ieee80211_emulate_change_chanctx) { | |
793 | if (WARN_ON(ops->assign_vif_chanctx || | |
794 | ops->unassign_vif_chanctx)) | |
795 | return NULL; | |
796 | emulate_chanctx = true; | |
797 | } else { | |
798 | if (WARN_ON(ops->add_chanctx == ieee80211_emulate_add_chanctx || | |
799 | ops->remove_chanctx == ieee80211_emulate_remove_chanctx || | |
800 | ops->change_chanctx == ieee80211_emulate_change_chanctx)) | |
801 | return NULL; | |
802 | if (WARN_ON(!ops->add_chanctx || | |
803 | !ops->remove_chanctx || | |
804 | !ops->change_chanctx || | |
805 | !ops->assign_vif_chanctx || | |
806 | !ops->unassign_vif_chanctx)) | |
807 | return NULL; | |
808 | emulate_chanctx = false; | |
809 | } | |
e269d860 | 810 | |
f0706e82 JB |
811 | /* Ensure 32-byte alignment of our private data and hw private data. |
812 | * We use the wiphy priv data for both our ieee80211_local and for | |
813 | * the driver's private data | |
814 | * | |
815 | * In memory it'll be like this: | |
816 | * | |
817 | * +-------------------------+ | |
818 | * | struct wiphy | | |
819 | * +-------------------------+ | |
820 | * | struct ieee80211_local | | |
821 | * +-------------------------+ | |
822 | * | driver's private data | | |
823 | * +-------------------------+ | |
824 | * | |
825 | */ | |
1ce8e7b5 | 826 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 827 | |
ad28757e | 828 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
829 | |
830 | if (!wiphy) | |
831 | return NULL; | |
832 | ||
2e161f78 JB |
833 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
834 | ||
207aba60 JB |
835 | wiphy->privid = mac80211_wiphy_privid; |
836 | ||
9bc383de JB |
837 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
838 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 839 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 840 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
841 | WIPHY_FLAG_OFFCHAN_TX; |
842 | ||
0a44dfc0 | 843 | if (emulate_chanctx || ops->remain_on_channel) |
81ddbb5c | 844 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
207aba60 | 845 | |
b292219f JB |
846 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
847 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 848 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 849 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 850 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
851 | NL80211_FEATURE_USERSPACE_MPM | |
852 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
f3ca52aa | 853 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_FILS_STA); |
018f6fbf DK |
854 | wiphy_ext_feature_set(wiphy, |
855 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211); | |
7f3f96ce MT |
856 | wiphy_ext_feature_set(wiphy, |
857 | NL80211_EXT_FEATURE_CONTROL_PORT_NO_PREAUTH); | |
a7528198 MT |
858 | wiphy_ext_feature_set(wiphy, |
859 | NL80211_EXT_FEATURE_CONTROL_PORT_OVER_NL80211_TX_STATUS); | |
2032f3b2 TP |
860 | wiphy_ext_feature_set(wiphy, |
861 | NL80211_EXT_FEATURE_SCAN_FREQ_KHZ); | |
3c06e91b JP |
862 | wiphy_ext_feature_set(wiphy, |
863 | NL80211_EXT_FEATURE_POWERED_ADDR_CHANGE); | |
a729cff8 | 864 | |
b9771d41 | 865 | if (!ops->hw_scan) { |
5c95b940 AQ |
866 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
867 | NL80211_FEATURE_AP_SCAN; | |
b9771d41 JB |
868 | /* |
869 | * if the driver behaves correctly using the probe request | |
870 | * (template) from mac80211, then both of these should be | |
871 | * supported even with hw scan - but let drivers opt in. | |
872 | */ | |
873 | wiphy_ext_feature_set(wiphy, | |
874 | NL80211_EXT_FEATURE_SCAN_RANDOM_SN); | |
875 | wiphy_ext_feature_set(wiphy, | |
876 | NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT); | |
877 | } | |
cd2bb512 | 878 | |
3b220ed8 | 879 | if (!ops->set_key) { |
207aba60 | 880 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
3b220ed8 JB |
881 | wiphy_ext_feature_set(wiphy, |
882 | NL80211_EXT_FEATURE_SPP_AMSDU_SUPPORT); | |
883 | } | |
18a83659 | 884 | |
107395f9 | 885 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_TXQS); |
f278ce4f EG |
886 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_RRM); |
887 | ||
0c1ad2ca | 888 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
889 | |
890 | local = wiphy_priv(wiphy); | |
de95a54b | 891 | |
7bedd0cf JB |
892 | if (sta_info_init(local)) |
893 | goto err_free; | |
894 | ||
f0706e82 JB |
895 | local->hw.wiphy = wiphy; |
896 | ||
1ce8e7b5 | 897 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
898 | |
899 | local->ops = ops; | |
0a44dfc0 JB |
900 | local->emulate_chanctx = emulate_chanctx; |
901 | ||
902 | if (emulate_chanctx) | |
903 | ieee80211_hw_set(&local->hw, CHANCTX_STA_CSA); | |
f0706e82 | 904 | |
70e53669 WG |
905 | /* |
906 | * We need a bit of data queued to build aggregates properly, so | |
907 | * instruct the TCP stack to allow more than a single ms of data | |
908 | * to be queued in the stack. The value is a bit-shift of 1 | |
5c14a4d0 | 909 | * second, so 7 is ~8ms of queued data. Only affects local TCP |
70e53669 WG |
910 | * sockets. |
911 | * This is the default, anyhow - drivers may need to override it | |
912 | * for local reasons (longer buffers, longer completion time, or | |
913 | * similar). | |
914 | */ | |
5c14a4d0 | 915 | local->hw.tx_sk_pacing_shift = 7; |
70e53669 | 916 | |
e6a9854b JB |
917 | /* set up some defaults */ |
918 | local->hw.queues = 1; | |
919 | local->hw.max_rates = 1; | |
78be49ec | 920 | local->hw.max_report_rates = 0; |
b8042b3d JB |
921 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; |
922 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HT; | |
3a25a8c8 | 923 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
924 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
925 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
926 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
927 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
928 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
929 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
930 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
931 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
932 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
06354665 | 933 | local->hw.max_mtu = IEEE80211_MAX_DATA_LEN; |
1ea6f9c0 | 934 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 935 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 936 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 937 | |
e9a21949 LC |
938 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
939 | ||
940 | wiphy->extended_capabilities = local->ext_capa; | |
941 | wiphy->extended_capabilities_mask = local->ext_capa; | |
942 | wiphy->extended_capabilities_len = | |
943 | ARRAY_SIZE(local->ext_capa); | |
944 | ||
79010420 | 945 | INIT_LIST_HEAD(&local->interfaces); |
f64331d5 | 946 | INIT_LIST_HEAD(&local->mon_list); |
2f787b0b YH |
947 | |
948 | __hw_addr_init(&local->mc_list); | |
949 | ||
c771c9d8 | 950 | mutex_init(&local->iflist_mtx); |
3b8d81e0 | 951 | spin_lock_init(&local->filter_lock); |
f9e124fb | 952 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
953 | spin_lock_init(&local->queue_stop_reason_lock); |
954 | ||
18667600 | 955 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
942741da FF |
956 | INIT_LIST_HEAD(&local->active_txqs[i]); |
957 | spin_lock_init(&local->active_txq_lock[i]); | |
958 | local->aql_txq_limit_low[i] = IEEE80211_DEFAULT_AQL_TXQ_LIMIT_L; | |
959 | local->aql_txq_limit_high[i] = | |
3ace10f5 | 960 | IEEE80211_DEFAULT_AQL_TXQ_LIMIT_H; |
8e4bac06 | 961 | atomic_set(&local->aql_ac_pending_airtime[i], 0); |
18667600 | 962 | } |
3ace10f5 | 963 | |
911bde0f | 964 | local->airtime_flags = AIRTIME_USE_TX | AIRTIME_USE_RX; |
3ace10f5 KY |
965 | local->aql_threshold = IEEE80211_AQL_THRESHOLD; |
966 | atomic_set(&local->aql_total_pending_airtime, 0); | |
18667600 | 967 | |
007ae9b2 AW |
968 | spin_lock_init(&local->handle_wake_tx_queue_lock); |
969 | ||
d01a1e65 | 970 | INIT_LIST_HEAD(&local->chanctx_list); |
d01a1e65 | 971 | |
20171251 | 972 | wiphy_delayed_work_init(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 973 | |
f2753ddb JB |
974 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
975 | ||
228e4f93 JB |
976 | wiphy_work_init(&local->radar_detected_work, |
977 | ieee80211_dfs_radar_detected_work); | |
164eb02d | 978 | |
a6add8be | 979 | wiphy_work_init(&local->reconfig_filter, ieee80211_reconfig_filter); |
3ac64bee | 980 | |
9fa659f9 JB |
981 | wiphy_work_init(&local->dynamic_ps_enable_work, |
982 | ieee80211_dynamic_ps_enable_work); | |
983 | wiphy_work_init(&local->dynamic_ps_disable_work, | |
984 | ieee80211_dynamic_ps_disable_work); | |
34f11cd3 | 985 | timer_setup(&local->dynamic_ps_timer, ieee80211_dynamic_ps_timer, 0); |
520eb820 | 986 | |
eadfb547 JB |
987 | wiphy_work_init(&local->sched_scan_stopped_work, |
988 | ieee80211_sched_scan_stopped_work); | |
85a9994a | 989 | |
a729cff8 JB |
990 | spin_lock_init(&local->ack_status_lock); |
991 | idr_init(&local->ack_status_frames); | |
a729cff8 | 992 | |
a6a67db2 | 993 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 994 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
995 | atomic_set(&local->agg_queue_stop[i], 0); |
996 | } | |
da1cad73 | 997 | tasklet_setup(&local->tx_pending_tasklet, ieee80211_tx_pending); |
107395f9 | 998 | tasklet_setup(&local->wake_txqs_tasklet, ieee80211_wake_txqs); |
da1cad73 | 999 | tasklet_setup(&local->tasklet, ieee80211_tasklet_handler); |
f0706e82 JB |
1000 | |
1001 | skb_queue_head_init(&local->skb_queue); | |
1002 | skb_queue_head_init(&local->skb_queue_unreliable); | |
1003 | ||
8d5c2585 | 1004 | ieee80211_alloc_led_names(local); |
fe67c913 | 1005 | |
2eb278e0 | 1006 | ieee80211_roc_setup(local); |
21f83589 | 1007 | |
99ee7cae JB |
1008 | local->hw.radiotap_timestamp.units_pos = -1; |
1009 | local->hw.radiotap_timestamp.accuracy = -1; | |
1010 | ||
005e472b | 1011 | return &local->hw; |
7bedd0cf JB |
1012 | err_free: |
1013 | wiphy_free(wiphy); | |
1014 | return NULL; | |
f0706e82 | 1015 | } |
ad28757e | 1016 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 1017 | |
2475b1cc | 1018 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 1019 | { |
5fdb3735 | 1020 | bool have_wep = !fips_enabled; /* FIPS does not permit the use of RC4 */ |
30686bf7 | 1021 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
23a5f0af | 1022 | int r = 0, w = 0; |
2475b1cc | 1023 | u32 *suites; |
25e47c18 | 1024 | static const u32 cipher_suites[] = { |
5daa8a8e | 1025 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
1026 | WLAN_CIPHER_SUITE_WEP40, |
1027 | WLAN_CIPHER_SUITE_WEP104, | |
1028 | WLAN_CIPHER_SUITE_TKIP, | |
1029 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 1030 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
1031 | WLAN_CIPHER_SUITE_GCMP, |
1032 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
1033 | |
1034 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
1035 | WLAN_CIPHER_SUITE_AES_CMAC, |
1036 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
1037 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
1038 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 1039 | }; |
8318d78a | 1040 | |
30686bf7 | 1041 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
1042 | local->hw.wiphy->cipher_suites) { |
1043 | /* If the driver advertises, or doesn't support SW crypto, | |
1044 | * we only need to remove WEP if necessary. | |
1045 | */ | |
1046 | if (have_wep) | |
1047 | return 0; | |
1048 | ||
1049 | /* well if it has _no_ ciphers ... fine */ | |
1050 | if (!local->hw.wiphy->n_cipher_suites) | |
1051 | return 0; | |
1052 | ||
1053 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
d07e1f5c SL |
1054 | suites = kmemdup_array(local->hw.wiphy->cipher_suites, |
1055 | local->hw.wiphy->n_cipher_suites, | |
1056 | sizeof(u32), GFP_KERNEL); | |
fa7e1fbc JB |
1057 | if (!suites) |
1058 | return -ENOMEM; | |
2475b1cc | 1059 | |
fa7e1fbc JB |
1060 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
1061 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
1062 | ||
1063 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
1064 | suite == WLAN_CIPHER_SUITE_WEP104) | |
1065 | continue; | |
1066 | suites[w++] = suite; | |
1067 | } | |
23a5f0af JB |
1068 | } else { |
1069 | /* assign the (software supported and perhaps offloaded) | |
1070 | * cipher suites | |
fa7e1fbc | 1071 | */ |
2475b1cc MS |
1072 | local->hw.wiphy->cipher_suites = cipher_suites; |
1073 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
1074 | ||
1075 | if (!have_mfp) | |
8ade538b | 1076 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
1077 | |
1078 | if (!have_wep) { | |
1079 | local->hw.wiphy->cipher_suites += 2; | |
1080 | local->hw.wiphy->n_cipher_suites -= 2; | |
1081 | } | |
1082 | ||
fa7e1fbc | 1083 | /* not dynamically allocated, so just return */ |
2475b1cc | 1084 | return 0; |
2475b1cc MS |
1085 | } |
1086 | ||
1087 | local->hw.wiphy->cipher_suites = suites; | |
1088 | local->hw.wiphy->n_cipher_suites = w; | |
1089 | local->wiphy_ciphers_allocated = true; | |
1090 | ||
1091 | return 0; | |
1092 | } | |
1093 | ||
a01b1e9f FF |
1094 | static bool |
1095 | ieee80211_ifcomb_check(const struct ieee80211_iface_combination *c, int n_comb) | |
1096 | { | |
1097 | int i, j; | |
1098 | ||
1099 | for (i = 0; i < n_comb; i++, c++) { | |
1100 | /* DFS is not supported with multi-channel combinations yet */ | |
1101 | if (c->radar_detect_widths && | |
1102 | c->num_different_channels > 1) | |
1103 | return false; | |
1104 | ||
1105 | /* mac80211 doesn't support more than one IBSS interface */ | |
1106 | for (j = 0; j < c->n_limits; j++) | |
1107 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
1108 | c->limits[j].max > 1) | |
1109 | return false; | |
1110 | } | |
1111 | ||
1112 | return true; | |
1113 | } | |
1114 | ||
2475b1cc MS |
1115 | int ieee80211_register_hw(struct ieee80211_hw *hw) |
1116 | { | |
1117 | struct ieee80211_local *local = hw_to_local(hw); | |
1118 | int result, i; | |
57fbcce3 | 1119 | enum nl80211_band band; |
2475b1cc | 1120 | int channels, max_bitrates; |
820acc81 | 1121 | bool supp_ht, supp_vht, supp_he, supp_eht; |
2475b1cc MS |
1122 | struct cfg80211_chan_def dflt_chandef = {}; |
1123 | ||
30686bf7 | 1124 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
1125 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
1126 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
1127 | return -EINVAL; | |
1128 | ||
a7a6bdd0 AN |
1129 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
1130 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
1131 | !local->ops->tdls_cancel_channel_switch || |
1132 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
1133 | return -EOPNOTSUPP; |
1134 | ||
f3fe4e93 SS |
1135 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_TX_FRAG) && |
1136 | !local->ops->set_frag_threshold)) | |
1137 | return -EINVAL; | |
1138 | ||
708d50ed AB |
1139 | if (WARN_ON(local->hw.wiphy->interface_modes & |
1140 | BIT(NL80211_IFTYPE_NAN) && | |
1141 | (!local->ops->start_nan || !local->ops->stop_nan))) | |
1142 | return -EINVAL; | |
1143 | ||
762623a6 JB |
1144 | if (hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) { |
1145 | /* | |
1146 | * For drivers capable of doing MLO, assume modern driver | |
1147 | * or firmware facilities, so software doesn't have to do | |
1148 | * as much, e.g. monitoring beacons would be hard if we | |
1149 | * might not even know which link is active at which time. | |
1150 | */ | |
0a44dfc0 | 1151 | if (WARN_ON(local->emulate_chanctx)) |
762623a6 JB |
1152 | return -EINVAL; |
1153 | ||
1154 | if (WARN_ON(!local->ops->link_info_changed)) | |
1155 | return -EINVAL; | |
1156 | ||
1157 | if (WARN_ON(!ieee80211_hw_check(hw, HAS_RATE_CONTROL))) | |
1158 | return -EINVAL; | |
1159 | ||
1160 | if (WARN_ON(!ieee80211_hw_check(hw, AMPDU_AGGREGATION))) | |
1161 | return -EINVAL; | |
1162 | ||
1163 | if (WARN_ON(ieee80211_hw_check(hw, HOST_BROADCAST_PS_BUFFERING))) | |
1164 | return -EINVAL; | |
1165 | ||
1166 | if (WARN_ON(ieee80211_hw_check(hw, SUPPORTS_PS) && | |
8c7c6b58 JB |
1167 | (!ieee80211_hw_check(hw, SUPPORTS_DYNAMIC_PS) || |
1168 | ieee80211_hw_check(hw, PS_NULLFUNC_STACK)))) | |
762623a6 JB |
1169 | return -EINVAL; |
1170 | ||
1171 | if (WARN_ON(!ieee80211_hw_check(hw, MFP_CAPABLE))) | |
1172 | return -EINVAL; | |
1173 | ||
1174 | if (WARN_ON(!ieee80211_hw_check(hw, CONNECTION_MONITOR))) | |
1175 | return -EINVAL; | |
1176 | ||
1177 | if (WARN_ON(ieee80211_hw_check(hw, NEED_DTIM_BEFORE_ASSOC))) | |
1178 | return -EINVAL; | |
1179 | ||
1180 | if (WARN_ON(ieee80211_hw_check(hw, TIMING_BEACON_ONLY))) | |
1181 | return -EINVAL; | |
1182 | ||
1183 | if (WARN_ON(!ieee80211_hw_check(hw, AP_LINK_PS))) | |
1184 | return -EINVAL; | |
1185 | } | |
1186 | ||
38bb3e9d | 1187 | #ifdef CONFIG_PM |
964dc9e2 | 1188 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 1189 | return -EINVAL; |
dfb89c56 | 1190 | #endif |
eecc4800 | 1191 | |
0a44dfc0 | 1192 | if (local->emulate_chanctx) { |
fe57d9f5 JB |
1193 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
1194 | const struct ieee80211_iface_combination *comb; | |
1195 | ||
1196 | comb = &local->hw.wiphy->iface_combinations[i]; | |
1197 | ||
1198 | if (comb->num_different_channels > 1) | |
1199 | return -EINVAL; | |
1200 | } | |
a01b1e9f | 1201 | } |
164eb02d | 1202 | |
a01b1e9f FF |
1203 | if (hw->wiphy->n_radio) { |
1204 | for (i = 0; i < hw->wiphy->n_radio; i++) { | |
1205 | const struct wiphy_radio *radio = &hw->wiphy->radio[i]; | |
164eb02d | 1206 | |
a01b1e9f FF |
1207 | if (!ieee80211_ifcomb_check(radio->iface_combinations, |
1208 | radio->n_iface_combinations)) | |
164eb02d SW |
1209 | return -EINVAL; |
1210 | } | |
a01b1e9f FF |
1211 | } else { |
1212 | if (!ieee80211_ifcomb_check(hw->wiphy->iface_combinations, | |
1213 | hw->wiphy->n_iface_combinations)) | |
1214 | return -EINVAL; | |
fe57d9f5 JB |
1215 | } |
1216 | ||
72d78728 | 1217 | /* Only HW csum features are currently compatible with mac80211 */ |
07b83d2e | 1218 | if (WARN_ON(hw->netdev_features & ~MAC80211_SUPPORTED_FEATURES)) |
72d78728 AN |
1219 | return -EINVAL; |
1220 | ||
78be49ec HS |
1221 | if (hw->max_report_rates == 0) |
1222 | hw->max_report_rates = hw->max_rates; | |
1223 | ||
04ecd257 JB |
1224 | local->rx_chains = 1; |
1225 | ||
8318d78a JB |
1226 | /* |
1227 | * generic code guarantees at least one band, | |
1228 | * set this very early because much code assumes | |
1229 | * that hw.conf.channel is assigned | |
1230 | */ | |
2a519311 | 1231 | channels = 0; |
de95a54b | 1232 | max_bitrates = 0; |
5ef2d41a | 1233 | supp_ht = false; |
ba0afa2f | 1234 | supp_vht = false; |
41cbb0f5 | 1235 | supp_he = false; |
820acc81 | 1236 | supp_eht = false; |
57fbcce3 | 1237 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
e8c18412 | 1238 | const struct ieee80211_sband_iftype_data *iftd; |
8318d78a JB |
1239 | struct ieee80211_supported_band *sband; |
1240 | ||
1241 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
1242 | if (!sband) |
1243 | continue; | |
fffa4b1c KB |
1244 | |
1245 | if (!dflt_chandef.chan) { | |
041c881a KK |
1246 | /* |
1247 | * Assign the first enabled channel to dflt_chandef | |
1248 | * from the list of channels | |
1249 | */ | |
1250 | for (i = 0; i < sband->n_channels; i++) | |
1251 | if (!(sband->channels[i].flags & | |
1252 | IEEE80211_CHAN_DISABLED)) | |
1253 | break; | |
1254 | /* if none found then use the first anyway */ | |
1255 | if (i == sband->n_channels) | |
1256 | i = 0; | |
fffa4b1c | 1257 | cfg80211_chandef_create(&dflt_chandef, |
041c881a | 1258 | &sband->channels[i], |
fffa4b1c | 1259 | NL80211_CHAN_NO_HT); |
8318d78a | 1260 | /* init channel we're on */ |
6092077a | 1261 | local->monitor_chanreq.oper = dflt_chandef; |
0a44dfc0 JB |
1262 | if (local->emulate_chanctx) { |
1263 | local->dflt_chandef = dflt_chandef; | |
fffa4b1c | 1264 | local->hw.conf.chandef = dflt_chandef; |
fffa4b1c | 1265 | } |
8318d78a | 1266 | } |
fffa4b1c | 1267 | |
de95a54b JB |
1268 | channels += sband->n_channels; |
1269 | ||
69e0d04e JB |
1270 | /* |
1271 | * Due to the way the aggregation code handles this and it | |
1272 | * being an HT capability, we can't really support delayed | |
1273 | * BA in MLO (yet). | |
1274 | */ | |
1275 | if (WARN_ON(sband->ht_cap.ht_supported && | |
1276 | (sband->ht_cap.cap & IEEE80211_HT_CAP_DELAY_BA) && | |
1277 | hw->wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)) | |
1278 | return -EINVAL; | |
1279 | ||
de95a54b JB |
1280 | if (max_bitrates < sband->n_bitrates) |
1281 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 1282 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 1283 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 | 1284 | |
e8c18412 | 1285 | for_each_sband_iftype_data(sband, i, iftd) { |
f04d2c24 JB |
1286 | u8 he_40_mhz_cap; |
1287 | ||
4a11174d | 1288 | supp_he = supp_he || iftd->he_cap.has_he; |
820acc81 | 1289 | supp_eht = supp_eht || iftd->eht_cap.has_eht; |
f04d2c24 | 1290 | |
37c37096 | 1291 | if (band == NL80211_BAND_2GHZ) |
f04d2c24 JB |
1292 | he_40_mhz_cap = |
1293 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G; | |
1294 | else | |
1295 | he_40_mhz_cap = | |
1296 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G; | |
1297 | ||
1298 | /* currently no support for HE client where HT has 40 MHz but not HT */ | |
1299 | if (iftd->he_cap.has_he && | |
1300 | iftd->types_mask & (BIT(NL80211_IFTYPE_STATION) | | |
1301 | BIT(NL80211_IFTYPE_P2P_CLIENT)) && | |
1302 | sband->ht_cap.ht_supported && | |
1303 | sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && | |
1304 | !(iftd->he_cap.he_cap_elem.phy_cap_info[0] & he_40_mhz_cap)) | |
1305 | return -EINVAL; | |
bac2fd3d | 1306 | } |
41cbb0f5 | 1307 | |
75e296e9 JB |
1308 | /* HT, VHT, HE require QoS, thus >= 4 queues */ |
1309 | if (WARN_ON(local->hw.queues < IEEE80211_NUM_ACS && | |
1310 | (supp_ht || supp_vht || supp_he))) | |
1311 | return -EINVAL; | |
1312 | ||
820acc81 IP |
1313 | /* EHT requires HE support */ |
1314 | if (WARN_ON(supp_eht && !supp_he)) | |
1315 | return -EINVAL; | |
1316 | ||
43071d8f FF |
1317 | if (!sband->ht_cap.ht_supported) |
1318 | continue; | |
04ecd257 JB |
1319 | |
1320 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
43071d8f FF |
1321 | local->rx_chains = |
1322 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
1323 | local->rx_chains); | |
1324 | ||
1325 | /* no need to mask, SM_PS_DISABLED has all bits set */ | |
1326 | sband->ht_cap.cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
1327 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
8318d78a | 1328 | } |
f0706e82 | 1329 | |
db3bdcb9 MP |
1330 | /* if low-level driver supports AP, we also support VLAN. |
1331 | * drivers advertising SW_CRYPTO_CONTROL should enable AP_VLAN | |
1332 | * based on their support to transmit SW encrypted packets. | |
1333 | */ | |
1334 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP) && | |
1335 | !ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL)) { | |
7527a782 JB |
1336 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); |
1337 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
1338 | } | |
f59ac048 LR |
1339 | |
1340 | /* mac80211 always supports monitor */ | |
7527a782 JB |
1341 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
1342 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
1343 | ||
8e621fc9 | 1344 | |
5b0ec94f JB |
1345 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
1346 | sizeof(void *) * channels, GFP_KERNEL); | |
1347 | if (!local->int_scan_req) | |
1348 | return -ENOMEM; | |
1349 | ||
9beed8de JB |
1350 | eth_broadcast_addr(local->int_scan_req->bssid); |
1351 | ||
57fbcce3 | 1352 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
5b0ec94f JB |
1353 | if (!local->hw.wiphy->bands[band]) |
1354 | continue; | |
1355 | local->int_scan_req->rates[band] = (u32) -1; | |
1356 | } | |
1357 | ||
5eb5a52d JB |
1358 | #ifndef CONFIG_MAC80211_MESH |
1359 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
1360 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
1361 | #endif | |
1362 | ||
1570ca59 JC |
1363 | /* if the underlying driver supports mesh, mac80211 will (at least) |
1364 | * provide routing of mesh authentication frames to userspace */ | |
1365 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
1366 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
1367 | ||
a621fa4d JB |
1368 | /* mac80211 supports control port protocol changing */ |
1369 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
1370 | ||
30686bf7 | 1371 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 1372 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 1373 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 1374 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 1375 | if (hw->max_signal <= 0) { |
1376 | result = -EINVAL; | |
52e04b4c | 1377 | goto fail_workqueue; |
52512072 | 1378 | } |
1379 | } | |
77965c97 | 1380 | |
3e47bf1c AW |
1381 | /* Mac80211 and therefore all drivers using SW crypto only |
1382 | * are able to handle PTK rekeys and Extended Key ID. | |
622fce81 | 1383 | */ |
3e47bf1c | 1384 | if (!local->ops->set_key) { |
387bc002 AW |
1385 | wiphy_ext_feature_set(local->hw.wiphy, |
1386 | NL80211_EXT_FEATURE_CAN_REPLACE_PTK0); | |
3e47bf1c AW |
1387 | wiphy_ext_feature_set(local->hw.wiphy, |
1388 | NL80211_EXT_FEATURE_EXT_KEY_ID); | |
1389 | } | |
387bc002 | 1390 | |
a916062a NC |
1391 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_ADHOC)) |
1392 | wiphy_ext_feature_set(local->hw.wiphy, | |
1393 | NL80211_EXT_FEATURE_DEL_IBSS_STA); | |
1394 | ||
de95a54b JB |
1395 | /* |
1396 | * Calculate scan IE length -- we need this to alloc | |
1397 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 1398 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
1399 | * information -- SSID is the driver's responsibility. |
1400 | */ | |
dc9f48ce JM |
1401 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
1402 | 3 /* DS Params */; | |
5ef2d41a JB |
1403 | if (supp_ht) |
1404 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 1405 | |
d0e6c21a | 1406 | if (supp_vht) |
ba0afa2f | 1407 | local->scan_ies_len += |
d4950281 | 1408 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 1409 | |
41cbb0f5 | 1410 | /* |
cee04f3c IP |
1411 | * HE cap element is variable in size - set len to allow max size */ |
1412 | if (supp_he) { | |
41cbb0f5 | 1413 | local->scan_ies_len += |
cee04f3c | 1414 | 3 + sizeof(struct ieee80211_he_cap_elem) + |
41cbb0f5 | 1415 | sizeof(struct ieee80211_he_mcs_nss_supp) + |
cee04f3c | 1416 | IEEE80211_HE_PPE_THRES_MAX_LEN; |
820acc81 IP |
1417 | |
1418 | if (supp_eht) | |
1419 | local->scan_ies_len += | |
1420 | 3 + sizeof(struct ieee80211_eht_cap_elem) + | |
1421 | sizeof(struct ieee80211_eht_mcs_nss_supp) + | |
1422 | IEEE80211_EHT_PPE_THRES_MAX_LEN; | |
cee04f3c | 1423 | } |
41cbb0f5 | 1424 | |
de95a54b JB |
1425 | if (!local->ops->hw_scan) { |
1426 | /* For hw_scan, driver needs to set these up. */ | |
1427 | local->hw.wiphy->max_scan_ssids = 4; | |
1428 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
1429 | } | |
1430 | ||
1431 | /* | |
1432 | * If the driver supports any scan IEs, then assume the | |
1433 | * limit includes the IEs mac80211 will add, otherwise | |
1434 | * leave it at zero and let the driver sort it out; we | |
1435 | * still pass our IEs to the driver but userspace will | |
1436 | * not be allowed to in that case. | |
1437 | */ | |
1438 | if (local->hw.wiphy->max_scan_ie_len) | |
1439 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
1440 | ||
2475b1cc MS |
1441 | result = ieee80211_init_cipher_suites(local); |
1442 | if (result < 0) | |
52e04b4c | 1443 | goto fail_workqueue; |
25e47c18 | 1444 | |
21f83589 JB |
1445 | if (!local->ops->remain_on_channel) |
1446 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1447 | |
dfe018bf AN |
1448 | /* mac80211 based drivers don't support internal TDLS setup */ |
1449 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1450 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1451 | ||
e9a21949 | 1452 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1453 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1454 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1455 | ||
caf56338 SS |
1456 | /* mac80211 supports multi BSSID, if the driver supports it */ |
1457 | if (ieee80211_hw_check(&local->hw, SUPPORTS_MULTI_BSSID)) { | |
1458 | local->hw.wiphy->support_mbssid = true; | |
1459 | if (ieee80211_hw_check(&local->hw, | |
1460 | SUPPORTS_ONLY_HE_MULTI_BSSID)) | |
1461 | local->hw.wiphy->support_only_he_mbssid = true; | |
1462 | else | |
1463 | local->ext_capa[2] |= | |
1464 | WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1465 | } | |
1466 | ||
8552a434 | 1467 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CNTDWN_COUNTERS_NUM; |
0d06d9ba | 1468 | |
e2530083 JB |
1469 | /* |
1470 | * We use the number of queues for feature tests (QoS, HT) internally | |
1471 | * so restrict them appropriately. | |
1472 | */ | |
e2530083 JB |
1473 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1474 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1475 | |
42935eca | 1476 | local->workqueue = |
d8537548 | 1477 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1478 | if (!local->workqueue) { |
f0706e82 JB |
1479 | result = -ENOMEM; |
1480 | goto fail_workqueue; | |
1481 | } | |
1482 | ||
b306f453 JB |
1483 | /* |
1484 | * The hardware needs headroom for sending the frame, | |
1485 | * and we need some headroom for passing the frame to monitor | |
1486 | * interfaces, but never both at the same time. | |
1487 | */ | |
33ccad35 | 1488 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1489 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1490 | |
b446918b HS |
1491 | /* |
1492 | * if the driver doesn't specify a max listen interval we | |
1493 | * use 5 which should be a safe default | |
1494 | */ | |
ea95bba4 | 1495 | if (local->hw.max_listen_interval == 0) |
b446918b | 1496 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1497 | |
1498 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1499 | ||
ff616381 | 1500 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1501 | |
167e33f4 AB |
1502 | if (!local->hw.max_nan_de_entries) |
1503 | local->hw.max_nan_de_entries = IEEE80211_MAX_NAN_INSTANCE_ID; | |
1504 | ||
b4809e94 THJ |
1505 | if (!local->hw.weight_multiplier) |
1506 | local->hw.weight_multiplier = 1; | |
1507 | ||
4a65cc24 | 1508 | ieee80211_wep_init(local); |
d4c4a9a1 | 1509 | |
24d47300 KB |
1510 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1511 | ||
b57e6b56 MSS |
1512 | ieee80211_led_init(local); |
1513 | ||
dc8b274f THJ |
1514 | result = ieee80211_txq_setup_flows(local); |
1515 | if (result) | |
1516 | goto fail_flows; | |
1517 | ||
f0706e82 | 1518 | rtnl_lock(); |
830f9038 JB |
1519 | result = ieee80211_init_rate_ctrl_alg(local, |
1520 | hw->rate_control_algorithm); | |
52e04b4c | 1521 | rtnl_unlock(); |
f0706e82 | 1522 | if (result < 0) { |
0fb9a9ec JP |
1523 | wiphy_debug(local->hw.wiphy, |
1524 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1525 | goto fail_rate; |
1526 | } | |
1527 | ||
09b4a4fa JB |
1528 | if (local->rate_ctrl) { |
1529 | clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); | |
1530 | if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) | |
1531 | ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1532 | } | |
1533 | ||
1534 | /* | |
1535 | * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, | |
1536 | * or have it when we don't, copy the sband structure and set/clear it. | |
1537 | * This is necessary because rate scaling algorithms could be switched | |
1538 | * and have different support values. | |
1539 | * Print a message so that in the common case the reallocation can be | |
1540 | * avoided. | |
1541 | */ | |
1542 | BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); | |
1543 | for (band = 0; band < NUM_NL80211_BANDS; band++) { | |
1544 | struct ieee80211_supported_band *sband; | |
1545 | bool local_cap, ie_cap; | |
1546 | ||
1547 | local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); | |
1548 | ||
1549 | sband = local->hw.wiphy->bands[band]; | |
1550 | if (!sband || !sband->vht_cap.vht_supported) | |
1551 | continue; | |
1552 | ||
1553 | ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & | |
1554 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); | |
1555 | ||
1556 | if (local_cap == ie_cap) | |
1557 | continue; | |
1558 | ||
1559 | sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); | |
48f3b9e9 WY |
1560 | if (!sband) { |
1561 | result = -ENOMEM; | |
09b4a4fa | 1562 | goto fail_rate; |
48f3b9e9 | 1563 | } |
09b4a4fa JB |
1564 | |
1565 | wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", | |
1566 | band); | |
1567 | ||
1568 | sband->vht_cap.vht_mcs.tx_highest ^= | |
1569 | cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); | |
1570 | ||
1571 | local->hw.wiphy->bands[band] = sband; | |
1572 | local->sband_allocated |= BIT(band); | |
1573 | } | |
1574 | ||
52e04b4c SG |
1575 | result = wiphy_register(local->hw.wiphy); |
1576 | if (result < 0) | |
1577 | goto fail_wiphy_register; | |
1578 | ||
6cb5f3ea JB |
1579 | debugfs_hw_add(local); |
1580 | rate_control_add_debugfs(local); | |
1581 | ||
d34be431 EQ |
1582 | ieee80211_check_wbrf_support(local); |
1583 | ||
52e04b4c | 1584 | rtnl_lock(); |
a05829a7 | 1585 | wiphy_lock(hw->wiphy); |
52e04b4c | 1586 | |
8dffff21 | 1587 | /* add one default STA interface if supported */ |
e27513fb | 1588 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1589 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
dd665d23 JB |
1590 | struct vif_params params = {0}; |
1591 | ||
6bab2e19 | 1592 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
dd665d23 | 1593 | NL80211_IFTYPE_STATION, ¶ms); |
8dffff21 | 1594 | if (result) |
0fb9a9ec JP |
1595 | wiphy_warn(local->hw.wiphy, |
1596 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1597 | } |
f0706e82 | 1598 | |
a05829a7 | 1599 | wiphy_unlock(hw->wiphy); |
f0706e82 JB |
1600 | rtnl_unlock(); |
1601 | ||
26b36cfe | 1602 | #ifdef CONFIG_INET |
2b2c009e JO |
1603 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1604 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1605 | if (result) | |
1606 | goto fail_ifa; | |
26b36cfe | 1607 | #endif |
2b2c009e | 1608 | |
a65240c1 JB |
1609 | #if IS_ENABLED(CONFIG_IPV6) |
1610 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1611 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1612 | if (result) | |
1613 | goto fail_ifa6; | |
1614 | #endif | |
1615 | ||
f0706e82 JB |
1616 | return 0; |
1617 | ||
a65240c1 JB |
1618 | #if IS_ENABLED(CONFIG_IPV6) |
1619 | fail_ifa6: | |
93c08c32 | 1620 | #ifdef CONFIG_INET |
a65240c1 JB |
1621 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1622 | #endif | |
1623 | #endif | |
1624 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1625 | fail_ifa: |
93c08c32 | 1626 | #endif |
52e04b4c SG |
1627 | wiphy_unregister(local->hw.wiphy); |
1628 | fail_wiphy_register: | |
54330bf6 JB |
1629 | rtnl_lock(); |
1630 | rate_control_deinitialize(local); | |
10f644a4 | 1631 | ieee80211_remove_interfaces(local); |
f0706e82 | 1632 | rtnl_unlock(); |
52e04b4c | 1633 | fail_rate: |
b7600aae | 1634 | ieee80211_txq_teardown_flows(local); |
dc8b274f | 1635 | fail_flows: |
6dd47d97 | 1636 | ieee80211_led_exit(local); |
42935eca | 1637 | destroy_workqueue(local->workqueue); |
10f644a4 | 1638 | fail_workqueue: |
50b2e871 | 1639 | if (local->wiphy_ciphers_allocated) { |
3ffc2a90 | 1640 | kfree(local->hw.wiphy->cipher_suites); |
50b2e871 | 1641 | local->wiphy_ciphers_allocated = false; |
1642 | } | |
11ba964d | 1643 | kfree(local->int_scan_req); |
f0706e82 JB |
1644 | return result; |
1645 | } | |
1646 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1647 | ||
f0706e82 JB |
1648 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1649 | { | |
1650 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1651 | |
1652 | tasklet_kill(&local->tx_pending_tasklet); | |
1653 | tasklet_kill(&local->tasklet); | |
1654 | ||
26b36cfe | 1655 | #ifdef CONFIG_INET |
2b2c009e | 1656 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1657 | #endif |
a65240c1 JB |
1658 | #if IS_ENABLED(CONFIG_IPV6) |
1659 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1660 | #endif | |
10f644a4 | 1661 | |
f0706e82 JB |
1662 | rtnl_lock(); |
1663 | ||
79010420 JB |
1664 | /* |
1665 | * At this point, interface list manipulations are fine | |
1666 | * because the driver cannot be handing us frames any | |
1667 | * more and the tasklet is killed. | |
1668 | */ | |
75636525 | 1669 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1670 | |
b7600aae JB |
1671 | ieee80211_txq_teardown_flows(local); |
1672 | ||
228e4f93 | 1673 | wiphy_lock(local->hw.wiphy); |
97c19e42 | 1674 | wiphy_delayed_work_cancel(local->hw.wiphy, &local->roc_work); |
a6add8be | 1675 | wiphy_work_cancel(local->hw.wiphy, &local->reconfig_filter); |
eadfb547 | 1676 | wiphy_work_cancel(local->hw.wiphy, &local->sched_scan_stopped_work); |
228e4f93 JB |
1677 | wiphy_work_cancel(local->hw.wiphy, &local->radar_detected_work); |
1678 | wiphy_unlock(local->hw.wiphy); | |
f0706e82 JB |
1679 | rtnl_unlock(); |
1680 | ||
258086a4 | 1681 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1682 | |
f0706e82 | 1683 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1684 | rate_control_deinitialize(local); |
1685 | ||
f64f9e71 JP |
1686 | if (skb_queue_len(&local->skb_queue) || |
1687 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1688 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1689 | skb_queue_purge(&local->skb_queue); |
1690 | skb_queue_purge(&local->skb_queue_unreliable); | |
1691 | ||
f0706e82 | 1692 | wiphy_unregister(local->hw.wiphy); |
52e04b4c | 1693 | destroy_workqueue(local->workqueue); |
f0706e82 | 1694 | ieee80211_led_exit(local); |
5ba63533 | 1695 | kfree(local->int_scan_req); |
f0706e82 JB |
1696 | } |
1697 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1698 | ||
a729cff8 JB |
1699 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1700 | { | |
1701 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1702 | kfree_skb(p); | |
1703 | return 0; | |
1704 | } | |
1705 | ||
f0706e82 JB |
1706 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1707 | { | |
1708 | struct ieee80211_local *local = hw_to_local(hw); | |
09b4a4fa | 1709 | enum nl80211_band band; |
f0706e82 | 1710 | |
c771c9d8 JB |
1711 | mutex_destroy(&local->iflist_mtx); |
1712 | ||
50b2e871 | 1713 | if (local->wiphy_ciphers_allocated) { |
3ffc2a90 | 1714 | kfree(local->hw.wiphy->cipher_suites); |
50b2e871 | 1715 | local->wiphy_ciphers_allocated = false; |
1716 | } | |
3ffc2a90 | 1717 | |
a729cff8 JB |
1718 | idr_for_each(&local->ack_status_frames, |
1719 | ieee80211_free_ack_frame, NULL); | |
1720 | idr_destroy(&local->ack_status_frames); | |
1721 | ||
54330bf6 JB |
1722 | sta_info_stop(local); |
1723 | ||
8d5c2585 JB |
1724 | ieee80211_free_led_names(local); |
1725 | ||
09b4a4fa JB |
1726 | for (band = 0; band < NUM_NL80211_BANDS; band++) { |
1727 | if (!(local->sband_allocated & BIT(band))) | |
1728 | continue; | |
1729 | kfree(local->hw.wiphy->bands[band]); | |
1730 | } | |
1731 | ||
f0706e82 JB |
1732 | wiphy_free(local->hw.wiphy); |
1733 | } | |
1734 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1735 | ||
baa951a1 JB |
1736 | static const char * const drop_reasons_monitor[] = { |
1737 | #define V(x) #x, | |
1738 | [0] = "RX_DROP_MONITOR", | |
1739 | MAC80211_DROP_REASONS_MONITOR(V) | |
1740 | }; | |
1741 | ||
1742 | static struct drop_reason_list drop_reason_list_monitor = { | |
1743 | .reasons = drop_reasons_monitor, | |
1744 | .n_reasons = ARRAY_SIZE(drop_reasons_monitor), | |
1745 | }; | |
1746 | ||
1747 | static const char * const drop_reasons_unusable[] = { | |
1748 | [0] = "RX_DROP_UNUSABLE", | |
1749 | MAC80211_DROP_REASONS_UNUSABLE(V) | |
1750 | #undef V | |
1751 | }; | |
1752 | ||
1753 | static struct drop_reason_list drop_reason_list_unusable = { | |
1754 | .reasons = drop_reasons_unusable, | |
1755 | .n_reasons = ARRAY_SIZE(drop_reasons_unusable), | |
1756 | }; | |
1757 | ||
f0706e82 JB |
1758 | static int __init ieee80211_init(void) |
1759 | { | |
1760 | struct sk_buff *skb; | |
1761 | int ret; | |
1762 | ||
e039fa4a JB |
1763 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1764 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1765 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1766 | |
cccf129f FF |
1767 | ret = rc80211_minstrel_init(); |
1768 | if (ret) | |
1769 | return ret; | |
1770 | ||
47846c9b JB |
1771 | ret = ieee80211_iface_init(); |
1772 | if (ret) | |
1773 | goto err_netdev; | |
e9f207f0 | 1774 | |
baa951a1 JB |
1775 | drop_reasons_register_subsys(SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR, |
1776 | &drop_reason_list_monitor); | |
1777 | drop_reasons_register_subsys(SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE, | |
1778 | &drop_reason_list_unusable); | |
1779 | ||
f0706e82 | 1780 | return 0; |
47846c9b | 1781 | err_netdev: |
47846c9b JB |
1782 | rc80211_minstrel_exit(); |
1783 | ||
1784 | return ret; | |
f0706e82 JB |
1785 | } |
1786 | ||
f0706e82 JB |
1787 | static void __exit ieee80211_exit(void) |
1788 | { | |
cccf129f | 1789 | rc80211_minstrel_exit(); |
ac71c691 | 1790 | |
bf7cd94d | 1791 | ieee80211s_stop(); |
902acc78 | 1792 | |
47846c9b | 1793 | ieee80211_iface_exit(); |
d07c7cf4 | 1794 | |
baa951a1 JB |
1795 | drop_reasons_unregister_subsys(SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR); |
1796 | drop_reasons_unregister_subsys(SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE); | |
1797 | ||
d07c7cf4 | 1798 | rcu_barrier(); |
f0706e82 JB |
1799 | } |
1800 | ||
1801 | ||
ca9938fe | 1802 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1803 | module_exit(ieee80211_exit); |
1804 | ||
1805 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1806 | MODULE_LICENSE("GPL"); |