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Commit | Line | Data |
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f0706e82 JB |
1 | /* |
2 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
3 | * Copyright 2005-2006, Devicescape Software, Inc. | |
4 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <net/mac80211.h> | |
f0706e82 JB |
12 | #include <linux/module.h> |
13 | #include <linux/init.h> | |
14 | #include <linux/netdevice.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/slab.h> | |
17 | #include <linux/skbuff.h> | |
18 | #include <linux/etherdevice.h> | |
19 | #include <linux/if_arp.h> | |
f0706e82 | 20 | #include <linux/rtnetlink.h> |
f0706e82 | 21 | #include <linux/bitmap.h> |
e8db0be1 | 22 | #include <linux/pm_qos.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" |
e0eb6859 | 34 | #include "cfg.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_promiscs)) |
4150c572 JB |
44 | new_flags |= FIF_PROMISC_IN_BSS; |
45 | ||
53918994 | 46 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
47 | new_flags |= FIF_ALLMULTI; |
48 | ||
8a690674 BG |
49 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
50 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) | |
8cc9a739 MW |
51 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
52 | ||
7be5086d JB |
53 | if (local->fif_probe_req || local->probe_req_reg) |
54 | new_flags |= FIF_PROBE_REQ; | |
55 | ||
8cc9a739 MW |
56 | if (local->fif_fcsfail) |
57 | new_flags |= FIF_FCSFAIL; | |
58 | ||
59 | if (local->fif_plcpfail) | |
60 | new_flags |= FIF_PLCPFAIL; | |
61 | ||
62 | if (local->fif_control) | |
63 | new_flags |= FIF_CONTROL; | |
64 | ||
65 | if (local->fif_other_bss) | |
66 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 67 | |
e3b90ca2 IP |
68 | if (local->fif_pspoll) |
69 | new_flags |= FIF_PSPOLL; | |
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 | ||
3ac64bee JB |
87 | static void ieee80211_reconfig_filter(struct work_struct *work) |
88 | { | |
89 | struct ieee80211_local *local = | |
90 | container_of(work, struct ieee80211_local, reconfig_filter); | |
91 | ||
92 | ieee80211_configure_filter(local); | |
93 | } | |
94 | ||
55de908a | 95 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
b2c258fb | 96 | { |
1ea6f9c0 | 97 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 98 | struct cfg80211_chan_def chandef = {}; |
55de908a | 99 | u32 changed = 0; |
e8975581 | 100 | int power; |
ffd2778b | 101 | u32 offchannel_flag; |
f0706e82 | 102 | |
ffd2778b | 103 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 104 | |
7ca15a0a SW |
105 | if (local->scan_chandef.chan) { |
106 | chandef = local->scan_chandef; | |
b23b025f | 107 | } else if (local->tmp_channel) { |
675a0b04 KB |
108 | chandef.chan = local->tmp_channel; |
109 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
110 | chandef.center_freq1 = chandef.chan->center_freq; | |
111 | } else | |
112 | chandef = local->_oper_chandef; | |
113 | ||
114 | WARN(!cfg80211_chandef_valid(&chandef), | |
115 | "control:%d MHz width:%d center: %d/%d MHz", | |
116 | chandef.chan->center_freq, chandef.width, | |
117 | chandef.center_freq1, chandef.center_freq2); | |
118 | ||
119 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) | |
b23b025f BG |
120 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
121 | else | |
122 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
123 | ||
ffd2778b | 124 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 125 | |
675a0b04 KB |
126 | if (offchannel_flag || |
127 | !cfg80211_chandef_identical(&local->hw.conf.chandef, | |
128 | &local->_oper_chandef)) { | |
129 | local->hw.conf.chandef = chandef; | |
e8975581 JB |
130 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
131 | } | |
8318d78a | 132 | |
0f78231b JB |
133 | if (!conf_is_ht(&local->hw.conf)) { |
134 | /* | |
135 | * mac80211.h documents that this is only valid | |
136 | * when the channel is set to an HT type, and | |
137 | * that otherwise STATIC is used. | |
138 | */ | |
139 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
140 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
141 | local->hw.conf.smps_mode = local->smps_mode; | |
142 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
143 | } | |
144 | ||
0430c883 | 145 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 146 | |
1ea6f9c0 JB |
147 | rcu_read_lock(); |
148 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
149 | if (!rcu_access_pointer(sdata->vif.chanctx_conf)) | |
150 | continue; | |
151 | power = min(power, sdata->vif.bss_conf.txpower); | |
152 | } | |
153 | rcu_read_unlock(); | |
a8302de9 | 154 | |
e8975581 JB |
155 | if (local->hw.conf.power_level != power) { |
156 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
157 | local->hw.conf.power_level = power; | |
158 | } | |
b2c258fb | 159 | |
55de908a JB |
160 | return changed; |
161 | } | |
162 | ||
163 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) | |
164 | { | |
165 | int ret = 0; | |
166 | ||
167 | might_sleep(); | |
168 | ||
169 | if (!local->use_chanctx) | |
170 | changed |= ieee80211_hw_conf_chan(local); | |
171 | else | |
172 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | | |
173 | IEEE80211_CONF_CHANGE_POWER); | |
174 | ||
e8975581 | 175 | if (changed && local->open_count) { |
24487981 | 176 | ret = drv_config(local, changed); |
d73782fd | 177 | /* |
447107fb | 178 | * Goal: |
d73782fd JB |
179 | * HW reconfiguration should never fail, the driver has told |
180 | * us what it can support so it should live up to that promise. | |
447107fb RC |
181 | * |
182 | * Current status: | |
183 | * rfkill is not integrated with mac80211 and a | |
184 | * configuration command can thus fail if hardware rfkill | |
185 | * is enabled | |
186 | * | |
187 | * FIXME: integrate rfkill with mac80211 and then add this | |
188 | * WARN_ON() back | |
189 | * | |
d73782fd | 190 | */ |
447107fb | 191 | /* WARN_ON(ret); */ |
d73782fd | 192 | } |
f0706e82 | 193 | |
b2c258fb JB |
194 | return ret; |
195 | } | |
f0706e82 | 196 | |
471b3efd JB |
197 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
198 | u32 changed) | |
d9430a32 | 199 | { |
471b3efd JB |
200 | struct ieee80211_local *local = sdata->local; |
201 | ||
202 | if (!changed) | |
203 | return; | |
204 | ||
12375ef9 | 205 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
206 | } |
207 | ||
f698d856 | 208 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 209 | { |
bda3933a JB |
210 | sdata->vif.bss_conf.use_cts_prot = false; |
211 | sdata->vif.bss_conf.use_short_preamble = false; | |
212 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
213 | return BSS_CHANGED_ERP_CTS_PROT | |
214 | BSS_CHANGED_ERP_PREAMBLE | | |
215 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
216 | } |
217 | ||
f0706e82 JB |
218 | static void ieee80211_tasklet_handler(unsigned long data) |
219 | { | |
220 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
221 | struct sk_buff *skb; | |
f0706e82 JB |
222 | |
223 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
224 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
225 | switch (skb->pkt_type) { | |
226 | case IEEE80211_RX_MSG: | |
51fb61e7 | 227 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
228 | * netstack. */ |
229 | skb->pkt_type = 0; | |
005e472b | 230 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
231 | break; |
232 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 233 | skb->pkt_type = 0; |
005e472b | 234 | ieee80211_tx_status(&local->hw, skb); |
f0706e82 | 235 | break; |
f4ea83dd | 236 | default: |
5e3f3089 LF |
237 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
238 | skb->pkt_type); | |
f0706e82 JB |
239 | dev_kfree_skb(skb); |
240 | break; | |
241 | } | |
242 | } | |
243 | } | |
244 | ||
f2753ddb JB |
245 | static void ieee80211_restart_work(struct work_struct *work) |
246 | { | |
247 | struct ieee80211_local *local = | |
248 | container_of(work, struct ieee80211_local, restart_work); | |
249 | ||
bc86863d SG |
250 | /* wait for scan work complete */ |
251 | flush_workqueue(local->workqueue); | |
252 | ||
253 | mutex_lock(&local->mtx); | |
79f460ca | 254 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) || |
5260a5b2 JB |
255 | rcu_dereference_protected(local->sched_scan_sdata, |
256 | lockdep_is_held(&local->mtx)), | |
bc86863d SG |
257 | "%s called with hardware scan in progress\n", __func__); |
258 | mutex_unlock(&local->mtx); | |
259 | ||
f2753ddb | 260 | rtnl_lock(); |
4136c422 | 261 | ieee80211_scan_cancel(local); |
f2753ddb JB |
262 | ieee80211_reconfig(local); |
263 | rtnl_unlock(); | |
264 | } | |
265 | ||
266 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
267 | { | |
268 | struct ieee80211_local *local = hw_to_local(hw); | |
269 | ||
b5878a2d JB |
270 | trace_api_restart_hw(local); |
271 | ||
b196d031 MB |
272 | wiphy_info(hw->wiphy, |
273 | "Hardware restart was requested\n"); | |
274 | ||
18145c69 | 275 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 JB |
276 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
277 | IEEE80211_QUEUE_STOP_REASON_SUSPEND); | |
f2753ddb | 278 | |
04800ada AN |
279 | /* |
280 | * Stop all Rx during the reconfig. We don't want state changes | |
281 | * or driver callbacks while this is in progress. | |
282 | */ | |
283 | local->in_reconfig = true; | |
284 | barrier(); | |
285 | ||
f2753ddb JB |
286 | schedule_work(&local->restart_work); |
287 | } | |
288 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
289 | ||
26b36cfe | 290 | #ifdef CONFIG_INET |
2b2c009e JO |
291 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
292 | unsigned long data, void *arg) | |
293 | { | |
294 | struct in_ifaddr *ifa = arg; | |
295 | struct ieee80211_local *local = | |
296 | container_of(nb, struct ieee80211_local, | |
297 | ifa_notifier); | |
298 | struct net_device *ndev = ifa->ifa_dev->dev; | |
299 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 300 | struct in_device *idev; |
2b2c009e | 301 | struct ieee80211_sub_if_data *sdata; |
68542962 | 302 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 303 | struct ieee80211_if_managed *ifmgd; |
68542962 | 304 | int c = 0; |
2b2c009e JO |
305 | |
306 | /* Make sure it's our interface that got changed */ | |
307 | if (!wdev) | |
308 | return NOTIFY_DONE; | |
309 | ||
310 | if (wdev->wiphy != local->hw.wiphy) | |
311 | return NOTIFY_DONE; | |
312 | ||
2b2c009e | 313 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 314 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e JO |
315 | |
316 | /* ARP filtering is only supported in managed mode */ | |
317 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
318 | return NOTIFY_DONE; | |
319 | ||
95ae6b22 | 320 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
321 | if (!idev) |
322 | return NOTIFY_DONE; | |
323 | ||
2b2c009e | 324 | ifmgd = &sdata->u.mgd; |
8d61ffa5 | 325 | sdata_lock(sdata); |
68542962 JO |
326 | |
327 | /* Copy the addresses to the bss_conf list */ | |
328 | ifa = idev->ifa_list; | |
0f19b41e JB |
329 | while (ifa) { |
330 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
331 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
68542962 JO |
332 | ifa = ifa->ifa_next; |
333 | c++; | |
334 | } | |
335 | ||
68542962 JO |
336 | bss_conf->arp_addr_cnt = c; |
337 | ||
53d69c39 | 338 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 339 | if (ifmgd->associated) |
68542962 JO |
340 | ieee80211_bss_info_change_notify(sdata, |
341 | BSS_CHANGED_ARP_FILTER); | |
68542962 | 342 | |
8d61ffa5 | 343 | sdata_unlock(sdata); |
2b2c009e JO |
344 | |
345 | return NOTIFY_DONE; | |
346 | } | |
26b36cfe | 347 | #endif |
2b2c009e | 348 | |
a65240c1 JB |
349 | #if IS_ENABLED(CONFIG_IPV6) |
350 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
351 | unsigned long data, void *arg) | |
352 | { | |
353 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
354 | struct inet6_dev *idev = ifa->idev; | |
355 | struct net_device *ndev = ifa->idev->dev; | |
356 | struct ieee80211_local *local = | |
357 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
358 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
359 | struct ieee80211_sub_if_data *sdata; | |
360 | ||
361 | /* Make sure it's our interface that got changed */ | |
362 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
363 | return NOTIFY_DONE; | |
364 | ||
365 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
366 | ||
367 | /* | |
368 | * For now only support station mode. This is mostly because | |
369 | * doing AP would have to handle AP_VLAN in some way ... | |
370 | */ | |
371 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
372 | return NOTIFY_DONE; | |
373 | ||
374 | drv_ipv6_addr_change(local, sdata, idev); | |
375 | ||
376 | return NOTIFY_DONE; | |
377 | } | |
378 | #endif | |
379 | ||
2e161f78 JB |
380 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
381 | static const struct ieee80211_txrx_stypes | |
382 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
383 | [NL80211_IFTYPE_ADHOC] = { | |
384 | .tx = 0xffff, | |
3bfda62c WH |
385 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
386 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
387 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
388 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
389 | }, |
390 | [NL80211_IFTYPE_STATION] = { | |
391 | .tx = 0xffff, | |
392 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
393 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
394 | }, | |
395 | [NL80211_IFTYPE_AP] = { | |
396 | .tx = 0xffff, | |
397 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
398 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
399 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
400 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
401 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
402 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
403 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
404 | }, | |
405 | [NL80211_IFTYPE_AP_VLAN] = { | |
406 | /* copy AP */ | |
407 | .tx = 0xffff, | |
408 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
409 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
410 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
411 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
412 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
413 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
414 | BIT(IEEE80211_STYPE_ACTION >> 4), |
415 | }, | |
416 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
417 | .tx = 0xffff, | |
418 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
419 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
420 | }, | |
421 | [NL80211_IFTYPE_P2P_GO] = { | |
422 | .tx = 0xffff, | |
423 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
424 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
425 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
426 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
427 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
428 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
429 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
430 | }, | |
c7108a71 JC |
431 | [NL80211_IFTYPE_MESH_POINT] = { |
432 | .tx = 0xffff, | |
71839121 JC |
433 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
434 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
435 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 436 | }, |
f142c6b9 JB |
437 | [NL80211_IFTYPE_P2P_DEVICE] = { |
438 | .tx = 0xffff, | |
439 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
440 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
441 | }, | |
2e161f78 JB |
442 | }; |
443 | ||
ef96a842 BG |
444 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
445 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
446 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
447 | ||
448 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
449 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 450 | IEEE80211_HT_CAP_SGI_20 | |
ef96a842 BG |
451 | IEEE80211_HT_CAP_SGI_40), |
452 | .mcs = { | |
453 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
454 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
455 | }, | |
456 | }; | |
457 | ||
dd5ecfea JB |
458 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
459 | .vht_cap_info = | |
460 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
461 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
462 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
463 | IEEE80211_VHT_CAP_RXSTBC_1 | | |
464 | IEEE80211_VHT_CAP_RXSTBC_2 | | |
465 | IEEE80211_VHT_CAP_RXSTBC_3 | | |
466 | IEEE80211_VHT_CAP_RXSTBC_4 | | |
467 | IEEE80211_VHT_CAP_TXSTBC | | |
468 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
469 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
470 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
471 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
472 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
473 | .supp_mcs = { | |
474 | .rx_mcs_map = cpu_to_le16(~0), | |
475 | .tx_mcs_map = cpu_to_le16(~0), | |
476 | }, | |
477 | }; | |
478 | ||
c6f9d6c3 JB |
479 | static const u8 extended_capabilities[] = { |
480 | 0, 0, 0, 0, 0, 0, 0, | |
481 | WLAN_EXT_CAPA8_OPMODE_NOTIF, | |
482 | }; | |
483 | ||
f0706e82 JB |
484 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
485 | const struct ieee80211_ops *ops) | |
486 | { | |
f0706e82 | 487 | struct ieee80211_local *local; |
96f5e66e | 488 | int priv_size, i; |
f0706e82 | 489 | struct wiphy *wiphy; |
fe57d9f5 | 490 | bool use_chanctx; |
f0706e82 | 491 | |
c0af0734 JB |
492 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
493 | !ops->add_interface || !ops->remove_interface || | |
494 | !ops->configure_filter)) | |
495 | return NULL; | |
496 | ||
f09603a2 JB |
497 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
498 | return NULL; | |
499 | ||
e269d860 JB |
500 | /* check all or no channel context operations exist */ |
501 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
502 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
503 | !!ops->unassign_vif_chanctx; | |
504 | if (WARN_ON(i != 0 && i != 5)) | |
505 | return NULL; | |
fe57d9f5 | 506 | use_chanctx = i == 5; |
e269d860 | 507 | |
f0706e82 JB |
508 | /* Ensure 32-byte alignment of our private data and hw private data. |
509 | * We use the wiphy priv data for both our ieee80211_local and for | |
510 | * the driver's private data | |
511 | * | |
512 | * In memory it'll be like this: | |
513 | * | |
514 | * +-------------------------+ | |
515 | * | struct wiphy | | |
516 | * +-------------------------+ | |
517 | * | struct ieee80211_local | | |
518 | * +-------------------------+ | |
519 | * | driver's private data | | |
520 | * +-------------------------+ | |
521 | * | |
522 | */ | |
1ce8e7b5 | 523 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 JB |
524 | |
525 | wiphy = wiphy_new(&mac80211_config_ops, priv_size); | |
526 | ||
527 | if (!wiphy) | |
528 | return NULL; | |
529 | ||
2e161f78 JB |
530 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
531 | ||
207aba60 JB |
532 | wiphy->privid = mac80211_wiphy_privid; |
533 | ||
9bc383de JB |
534 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
535 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 536 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 537 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
538 | WIPHY_FLAG_OFFCHAN_TX; |
539 | ||
c6f9d6c3 JB |
540 | wiphy->extended_capabilities = extended_capabilities; |
541 | wiphy->extended_capabilities_mask = extended_capabilities; | |
542 | wiphy->extended_capabilities_len = ARRAY_SIZE(extended_capabilities); | |
543 | ||
81ddbb5c JB |
544 | if (ops->remain_on_channel) |
545 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; | |
207aba60 | 546 | |
b292219f JB |
547 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
548 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 549 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 TP |
550 | NL80211_FEATURE_VIF_TXPOWER | |
551 | NL80211_FEATURE_USERSPACE_MPM; | |
a729cff8 | 552 | |
cd2bb512 | 553 | if (!ops->hw_scan) |
5c95b940 AQ |
554 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
555 | NL80211_FEATURE_AP_SCAN; | |
556 | ||
cd2bb512 | 557 | |
207aba60 JB |
558 | if (!ops->set_key) |
559 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 560 | |
0c1ad2ca | 561 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
562 | |
563 | local = wiphy_priv(wiphy); | |
de95a54b | 564 | |
f0706e82 JB |
565 | local->hw.wiphy = wiphy; |
566 | ||
1ce8e7b5 | 567 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
568 | |
569 | local->ops = ops; | |
fe57d9f5 | 570 | local->use_chanctx = use_chanctx; |
f0706e82 | 571 | |
e6a9854b JB |
572 | /* set up some defaults */ |
573 | local->hw.queues = 1; | |
574 | local->hw.max_rates = 1; | |
78be49ec | 575 | local->hw.max_report_rates = 0; |
df6ba5d8 | 576 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
39e68712 | 577 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
3a25a8c8 | 578 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
579 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
580 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
581 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
582 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
583 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
584 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
585 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
586 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
587 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
1ea6f9c0 | 588 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 589 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 590 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 591 | |
79010420 | 592 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
593 | |
594 | __hw_addr_init(&local->mc_list); | |
595 | ||
c771c9d8 | 596 | mutex_init(&local->iflist_mtx); |
a1699b75 | 597 | mutex_init(&local->mtx); |
f0706e82 | 598 | |
ad0e2b5a | 599 | mutex_init(&local->key_mtx); |
3b8d81e0 | 600 | spin_lock_init(&local->filter_lock); |
f9e124fb | 601 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
602 | spin_lock_init(&local->queue_stop_reason_lock); |
603 | ||
d01a1e65 MK |
604 | INIT_LIST_HEAD(&local->chanctx_list); |
605 | mutex_init(&local->chanctx_mtx); | |
606 | ||
c2b13452 | 607 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 608 | |
f2753ddb JB |
609 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
610 | ||
164eb02d SW |
611 | INIT_WORK(&local->radar_detected_work, |
612 | ieee80211_dfs_radar_detected_work); | |
613 | ||
3ac64bee | 614 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 615 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 616 | |
520eb820 KV |
617 | INIT_WORK(&local->dynamic_ps_enable_work, |
618 | ieee80211_dynamic_ps_enable_work); | |
619 | INIT_WORK(&local->dynamic_ps_disable_work, | |
620 | ieee80211_dynamic_ps_disable_work); | |
621 | setup_timer(&local->dynamic_ps_timer, | |
622 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
623 | ||
85a9994a LC |
624 | INIT_WORK(&local->sched_scan_stopped_work, |
625 | ieee80211_sched_scan_stopped_work); | |
626 | ||
a729cff8 JB |
627 | spin_lock_init(&local->ack_status_lock); |
628 | idr_init(&local->ack_status_frames); | |
a729cff8 | 629 | |
f0706e82 JB |
630 | sta_info_init(local); |
631 | ||
a6a67db2 | 632 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 633 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
634 | atomic_set(&local->agg_queue_stop[i], 0); |
635 | } | |
f0706e82 JB |
636 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
637 | (unsigned long)local); | |
f0706e82 JB |
638 | |
639 | tasklet_init(&local->tasklet, | |
640 | ieee80211_tasklet_handler, | |
641 | (unsigned long) local); | |
f0706e82 JB |
642 | |
643 | skb_queue_head_init(&local->skb_queue); | |
644 | skb_queue_head_init(&local->skb_queue_unreliable); | |
645 | ||
fe67c913 JB |
646 | ieee80211_led_names(local); |
647 | ||
2eb278e0 | 648 | ieee80211_roc_setup(local); |
21f83589 | 649 | |
005e472b | 650 | return &local->hw; |
f0706e82 JB |
651 | } |
652 | EXPORT_SYMBOL(ieee80211_alloc_hw); | |
653 | ||
654 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
655 | { | |
656 | struct ieee80211_local *local = hw_to_local(hw); | |
7527a782 | 657 | int result, i; |
8318d78a | 658 | enum ieee80211_band band; |
be4a4b6a | 659 | int channels, max_bitrates; |
ba0afa2f | 660 | bool supp_ht, supp_vht; |
72d78728 | 661 | netdev_features_t feature_whitelist; |
fffa4b1c | 662 | struct cfg80211_chan_def dflt_chandef = {}; |
25e47c18 | 663 | static const u32 cipher_suites[] = { |
5daa8a8e | 664 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
665 | WLAN_CIPHER_SUITE_WEP40, |
666 | WLAN_CIPHER_SUITE_WEP104, | |
667 | WLAN_CIPHER_SUITE_TKIP, | |
668 | WLAN_CIPHER_SUITE_CCMP, | |
669 | ||
670 | /* keep last -- depends on hw flags! */ | |
671 | WLAN_CIPHER_SUITE_AES_CMAC | |
672 | }; | |
8318d78a | 673 | |
3a25a8c8 JB |
674 | if (hw->flags & IEEE80211_HW_QUEUE_CONTROL && |
675 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || | |
676 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
677 | return -EINVAL; | |
678 | ||
38bb3e9d | 679 | #ifdef CONFIG_PM |
964dc9e2 | 680 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 681 | return -EINVAL; |
dfb89c56 | 682 | #endif |
eecc4800 | 683 | |
fe57d9f5 JB |
684 | if (!local->use_chanctx) { |
685 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
686 | const struct ieee80211_iface_combination *comb; | |
687 | ||
688 | comb = &local->hw.wiphy->iface_combinations[i]; | |
689 | ||
690 | if (comb->num_different_channels > 1) | |
691 | return -EINVAL; | |
692 | } | |
746a3365 | 693 | } else { |
fe57d9f5 JB |
694 | /* |
695 | * WDS is currently prohibited when channel contexts are used | |
696 | * because there's no clear definition of which channel WDS | |
697 | * type interfaces use | |
698 | */ | |
699 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) | |
700 | return -EINVAL; | |
164eb02d SW |
701 | |
702 | /* DFS currently not supported with channel context drivers */ | |
703 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
704 | const struct ieee80211_iface_combination *comb; | |
705 | ||
706 | comb = &local->hw.wiphy->iface_combinations[i]; | |
707 | ||
708 | if (comb->radar_detect_widths) | |
709 | return -EINVAL; | |
710 | } | |
fe57d9f5 JB |
711 | } |
712 | ||
72d78728 AN |
713 | /* Only HW csum features are currently compatible with mac80211 */ |
714 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
715 | NETIF_F_HW_CSUM; | |
716 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) | |
717 | return -EINVAL; | |
718 | ||
78be49ec HS |
719 | if (hw->max_report_rates == 0) |
720 | hw->max_report_rates = hw->max_rates; | |
721 | ||
04ecd257 JB |
722 | local->rx_chains = 1; |
723 | ||
8318d78a JB |
724 | /* |
725 | * generic code guarantees at least one band, | |
726 | * set this very early because much code assumes | |
727 | * that hw.conf.channel is assigned | |
728 | */ | |
2a519311 | 729 | channels = 0; |
de95a54b | 730 | max_bitrates = 0; |
5ef2d41a | 731 | supp_ht = false; |
ba0afa2f | 732 | supp_vht = false; |
8318d78a JB |
733 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
734 | struct ieee80211_supported_band *sband; | |
735 | ||
736 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
737 | if (!sband) |
738 | continue; | |
fffa4b1c KB |
739 | |
740 | if (!dflt_chandef.chan) { | |
741 | cfg80211_chandef_create(&dflt_chandef, | |
742 | &sband->channels[0], | |
743 | NL80211_CHAN_NO_HT); | |
8318d78a | 744 | /* init channel we're on */ |
fffa4b1c KB |
745 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
746 | local->hw.conf.chandef = dflt_chandef; | |
747 | local->_oper_chandef = dflt_chandef; | |
748 | } | |
749 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 750 | } |
fffa4b1c | 751 | |
de95a54b JB |
752 | channels += sband->n_channels; |
753 | ||
754 | if (max_bitrates < sband->n_bitrates) | |
755 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 756 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 757 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 JB |
758 | |
759 | if (sband->ht_cap.ht_supported) | |
760 | local->rx_chains = | |
761 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
762 | local->rx_chains); | |
763 | ||
764 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
8318d78a | 765 | } |
f0706e82 | 766 | |
5ba63533 JB |
767 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
768 | sizeof(void *) * channels, GFP_KERNEL); | |
769 | if (!local->int_scan_req) | |
2a519311 JB |
770 | return -ENOMEM; |
771 | ||
c72e8d33 SW |
772 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
773 | if (!local->hw.wiphy->bands[band]) | |
774 | continue; | |
775 | local->int_scan_req->rates[band] = (u32) -1; | |
776 | } | |
777 | ||
f59ac048 | 778 | /* if low-level driver supports AP, we also support VLAN */ |
7527a782 JB |
779 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
780 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
781 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
782 | } | |
f59ac048 LR |
783 | |
784 | /* mac80211 always supports monitor */ | |
7527a782 JB |
785 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
786 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
787 | ||
55de908a | 788 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
789 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
790 | const struct ieee80211_iface_combination *c; | |
791 | int j; | |
792 | ||
793 | c = &hw->wiphy->iface_combinations[i]; | |
794 | ||
8e621fc9 JB |
795 | for (j = 0; j < c->n_limits; j++) |
796 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
797 | c->limits[j].max > 1) | |
798 | return -EINVAL; | |
799 | } | |
800 | ||
5eb5a52d JB |
801 | #ifndef CONFIG_MAC80211_MESH |
802 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
803 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
804 | #endif | |
805 | ||
1570ca59 JC |
806 | /* if the underlying driver supports mesh, mac80211 will (at least) |
807 | * provide routing of mesh authentication frames to userspace */ | |
808 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
809 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
810 | ||
a621fa4d JB |
811 | /* mac80211 supports control port protocol changing */ |
812 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
813 | ||
77965c97 JB |
814 | if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) |
815 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; | |
816 | else if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) | |
817 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; | |
818 | ||
ab13315a KV |
819 | WARN((local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) |
820 | && (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK), | |
821 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n"); | |
822 | ||
de95a54b JB |
823 | /* |
824 | * Calculate scan IE length -- we need this to alloc | |
825 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 826 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
827 | * information -- SSID is the driver's responsibility. |
828 | */ | |
dc9f48ce JM |
829 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
830 | 3 /* DS Params */; | |
5ef2d41a JB |
831 | if (supp_ht) |
832 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 833 | |
d0e6c21a | 834 | if (supp_vht) |
ba0afa2f | 835 | local->scan_ies_len += |
d4950281 | 836 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 837 | |
de95a54b JB |
838 | if (!local->ops->hw_scan) { |
839 | /* For hw_scan, driver needs to set these up. */ | |
840 | local->hw.wiphy->max_scan_ssids = 4; | |
841 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
842 | } | |
843 | ||
844 | /* | |
845 | * If the driver supports any scan IEs, then assume the | |
846 | * limit includes the IEs mac80211 will add, otherwise | |
847 | * leave it at zero and let the driver sort it out; we | |
848 | * still pass our IEs to the driver but userspace will | |
849 | * not be allowed to in that case. | |
850 | */ | |
851 | if (local->hw.wiphy->max_scan_ie_len) | |
852 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
853 | ||
3ffc2a90 JB |
854 | /* Set up cipher suites unless driver already did */ |
855 | if (!local->hw.wiphy->cipher_suites) { | |
856 | local->hw.wiphy->cipher_suites = cipher_suites; | |
857 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
858 | if (!(local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) | |
859 | local->hw.wiphy->n_cipher_suites--; | |
860 | } | |
5daa8a8e | 861 | if (IS_ERR(local->wep_tx_tfm) || IS_ERR(local->wep_rx_tfm)) { |
3ffc2a90 JB |
862 | if (local->hw.wiphy->cipher_suites == cipher_suites) { |
863 | local->hw.wiphy->cipher_suites += 2; | |
864 | local->hw.wiphy->n_cipher_suites -= 2; | |
865 | } else { | |
866 | u32 *suites; | |
867 | int r, w = 0; | |
868 | ||
869 | /* Filter out WEP */ | |
870 | ||
871 | suites = kmemdup( | |
872 | local->hw.wiphy->cipher_suites, | |
873 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
874 | GFP_KERNEL); | |
cfff2f99 JB |
875 | if (!suites) { |
876 | result = -ENOMEM; | |
877 | goto fail_wiphy_register; | |
878 | } | |
3ffc2a90 JB |
879 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
880 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
881 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
882 | suite == WLAN_CIPHER_SUITE_WEP104) | |
883 | continue; | |
884 | suites[w++] = suite; | |
885 | } | |
886 | local->hw.wiphy->cipher_suites = suites; | |
887 | local->hw.wiphy->n_cipher_suites = w; | |
888 | local->wiphy_ciphers_allocated = true; | |
889 | } | |
5daa8a8e | 890 | } |
25e47c18 | 891 | |
21f83589 JB |
892 | if (!local->ops->remain_on_channel) |
893 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 894 | |
dfe018bf AN |
895 | /* mac80211 based drivers don't support internal TDLS setup */ |
896 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
897 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
898 | ||
f0706e82 JB |
899 | result = wiphy_register(local->hw.wiphy); |
900 | if (result < 0) | |
2a519311 | 901 | goto fail_wiphy_register; |
f0706e82 | 902 | |
e2530083 JB |
903 | /* |
904 | * We use the number of queues for feature tests (QoS, HT) internally | |
905 | * so restrict them appropriately. | |
906 | */ | |
e2530083 JB |
907 | if (hw->queues > IEEE80211_MAX_QUEUES) |
908 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 909 | |
42935eca | 910 | local->workqueue = |
d8537548 | 911 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 912 | if (!local->workqueue) { |
f0706e82 JB |
913 | result = -ENOMEM; |
914 | goto fail_workqueue; | |
915 | } | |
916 | ||
b306f453 JB |
917 | /* |
918 | * The hardware needs headroom for sending the frame, | |
919 | * and we need some headroom for passing the frame to monitor | |
920 | * interfaces, but never both at the same time. | |
921 | */ | |
33ccad35 | 922 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 923 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 924 | |
e9f207f0 JB |
925 | debugfs_hw_add(local); |
926 | ||
b446918b HS |
927 | /* |
928 | * if the driver doesn't specify a max listen interval we | |
929 | * use 5 which should be a safe default | |
930 | */ | |
ea95bba4 | 931 | if (local->hw.max_listen_interval == 0) |
b446918b | 932 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
933 | |
934 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
935 | ||
ff616381 | 936 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 937 | |
d4c4a9a1 | 938 | result = ieee80211_wep_init(local); |
3473187d | 939 | if (result < 0) |
0fb9a9ec JP |
940 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
941 | result); | |
d4c4a9a1 | 942 | |
b57e6b56 MSS |
943 | ieee80211_led_init(local); |
944 | ||
f0706e82 | 945 | rtnl_lock(); |
f0706e82 | 946 | |
830f9038 JB |
947 | result = ieee80211_init_rate_ctrl_alg(local, |
948 | hw->rate_control_algorithm); | |
f0706e82 | 949 | if (result < 0) { |
0fb9a9ec JP |
950 | wiphy_debug(local->hw.wiphy, |
951 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
952 | goto fail_rate; |
953 | } | |
954 | ||
8dffff21 JB |
955 | /* add one default STA interface if supported */ |
956 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION)) { | |
957 | result = ieee80211_if_add(local, "wlan%d", NULL, | |
958 | NL80211_IFTYPE_STATION, NULL); | |
959 | if (result) | |
0fb9a9ec JP |
960 | wiphy_warn(local->hw.wiphy, |
961 | "Failed to add default virtual iface\n"); | |
8dffff21 | 962 | } |
f0706e82 | 963 | |
f0706e82 JB |
964 | rtnl_unlock(); |
965 | ||
10f644a4 JB |
966 | local->network_latency_notifier.notifier_call = |
967 | ieee80211_max_network_latency; | |
968 | result = pm_qos_add_notifier(PM_QOS_NETWORK_LATENCY, | |
969 | &local->network_latency_notifier); | |
10f644a4 JB |
970 | if (result) { |
971 | rtnl_lock(); | |
972 | goto fail_pm_qos; | |
973 | } | |
974 | ||
26b36cfe | 975 | #ifdef CONFIG_INET |
2b2c009e JO |
976 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
977 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
978 | if (result) | |
979 | goto fail_ifa; | |
26b36cfe | 980 | #endif |
2b2c009e | 981 | |
a65240c1 JB |
982 | #if IS_ENABLED(CONFIG_IPV6) |
983 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
984 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
985 | if (result) | |
986 | goto fail_ifa6; | |
987 | #endif | |
988 | ||
f0706e82 JB |
989 | return 0; |
990 | ||
a65240c1 JB |
991 | #if IS_ENABLED(CONFIG_IPV6) |
992 | fail_ifa6: | |
93c08c32 | 993 | #ifdef CONFIG_INET |
a65240c1 JB |
994 | unregister_inetaddr_notifier(&local->ifa_notifier); |
995 | #endif | |
996 | #endif | |
997 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e JO |
998 | fail_ifa: |
999 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, | |
1000 | &local->network_latency_notifier); | |
1001 | rtnl_lock(); | |
93c08c32 | 1002 | #endif |
10f644a4 JB |
1003 | fail_pm_qos: |
1004 | ieee80211_led_exit(local); | |
1005 | ieee80211_remove_interfaces(local); | |
10f644a4 | 1006 | fail_rate: |
f0706e82 | 1007 | rtnl_unlock(); |
d4c4a9a1 | 1008 | ieee80211_wep_free(local); |
f0706e82 | 1009 | sta_info_stop(local); |
42935eca | 1010 | destroy_workqueue(local->workqueue); |
10f644a4 | 1011 | fail_workqueue: |
f0706e82 | 1012 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 1013 | fail_wiphy_register: |
3ffc2a90 JB |
1014 | if (local->wiphy_ciphers_allocated) |
1015 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 1016 | kfree(local->int_scan_req); |
f0706e82 JB |
1017 | return result; |
1018 | } | |
1019 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1020 | ||
f0706e82 JB |
1021 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1022 | { | |
1023 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1024 | |
1025 | tasklet_kill(&local->tx_pending_tasklet); | |
1026 | tasklet_kill(&local->tasklet); | |
1027 | ||
10f644a4 JB |
1028 | pm_qos_remove_notifier(PM_QOS_NETWORK_LATENCY, |
1029 | &local->network_latency_notifier); | |
26b36cfe | 1030 | #ifdef CONFIG_INET |
2b2c009e | 1031 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1032 | #endif |
a65240c1 JB |
1033 | #if IS_ENABLED(CONFIG_IPV6) |
1034 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1035 | #endif | |
10f644a4 | 1036 | |
f0706e82 JB |
1037 | rtnl_lock(); |
1038 | ||
79010420 JB |
1039 | /* |
1040 | * At this point, interface list manipulations are fine | |
1041 | * because the driver cannot be handing us frames any | |
1042 | * more and the tasklet is killed. | |
1043 | */ | |
75636525 | 1044 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1045 | |
f0706e82 JB |
1046 | rtnl_unlock(); |
1047 | ||
258086a4 | 1048 | cancel_work_sync(&local->restart_work); |
3ac64bee JB |
1049 | cancel_work_sync(&local->reconfig_filter); |
1050 | ||
f0706e82 | 1051 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1052 | rate_control_deinitialize(local); |
1053 | ||
f64f9e71 JP |
1054 | if (skb_queue_len(&local->skb_queue) || |
1055 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1056 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1057 | skb_queue_purge(&local->skb_queue); |
1058 | skb_queue_purge(&local->skb_queue_unreliable); | |
1059 | ||
42935eca | 1060 | destroy_workqueue(local->workqueue); |
f0706e82 | 1061 | wiphy_unregister(local->hw.wiphy); |
ecb44335 | 1062 | sta_info_stop(local); |
f0706e82 JB |
1063 | ieee80211_wep_free(local); |
1064 | ieee80211_led_exit(local); | |
5ba63533 | 1065 | kfree(local->int_scan_req); |
f0706e82 JB |
1066 | } |
1067 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1068 | ||
a729cff8 JB |
1069 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1070 | { | |
1071 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1072 | kfree_skb(p); | |
1073 | return 0; | |
1074 | } | |
1075 | ||
f0706e82 JB |
1076 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1077 | { | |
1078 | struct ieee80211_local *local = hw_to_local(hw); | |
1079 | ||
c771c9d8 | 1080 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1081 | mutex_destroy(&local->mtx); |
c771c9d8 | 1082 | |
3ffc2a90 JB |
1083 | if (local->wiphy_ciphers_allocated) |
1084 | kfree(local->hw.wiphy->cipher_suites); | |
1085 | ||
a729cff8 JB |
1086 | idr_for_each(&local->ack_status_frames, |
1087 | ieee80211_free_ack_frame, NULL); | |
1088 | idr_destroy(&local->ack_status_frames); | |
1089 | ||
f0706e82 JB |
1090 | wiphy_free(local->hw.wiphy); |
1091 | } | |
1092 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1093 | ||
f0706e82 JB |
1094 | static int __init ieee80211_init(void) |
1095 | { | |
1096 | struct sk_buff *skb; | |
1097 | int ret; | |
1098 | ||
e039fa4a JB |
1099 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1100 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1101 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1102 | |
cccf129f FF |
1103 | ret = rc80211_minstrel_init(); |
1104 | if (ret) | |
1105 | return ret; | |
1106 | ||
ec8aa669 FF |
1107 | ret = rc80211_minstrel_ht_init(); |
1108 | if (ret) | |
1109 | goto err_minstrel; | |
1110 | ||
4b475898 | 1111 | ret = rc80211_pid_init(); |
ad018375 | 1112 | if (ret) |
47846c9b | 1113 | goto err_pid; |
f0706e82 | 1114 | |
47846c9b JB |
1115 | ret = ieee80211_iface_init(); |
1116 | if (ret) | |
1117 | goto err_netdev; | |
e9f207f0 | 1118 | |
f0706e82 | 1119 | return 0; |
47846c9b JB |
1120 | err_netdev: |
1121 | rc80211_pid_exit(); | |
1122 | err_pid: | |
ec8aa669 FF |
1123 | rc80211_minstrel_ht_exit(); |
1124 | err_minstrel: | |
47846c9b JB |
1125 | rc80211_minstrel_exit(); |
1126 | ||
1127 | return ret; | |
f0706e82 JB |
1128 | } |
1129 | ||
f0706e82 JB |
1130 | static void __exit ieee80211_exit(void) |
1131 | { | |
4b475898 | 1132 | rc80211_pid_exit(); |
ec8aa669 | 1133 | rc80211_minstrel_ht_exit(); |
cccf129f | 1134 | rc80211_minstrel_exit(); |
ac71c691 | 1135 | |
bf7cd94d | 1136 | ieee80211s_stop(); |
902acc78 | 1137 | |
47846c9b | 1138 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1139 | |
1140 | rcu_barrier(); | |
f0706e82 JB |
1141 | } |
1142 | ||
1143 | ||
ca9938fe | 1144 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1145 | module_exit(ieee80211_exit); |
1146 | ||
1147 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1148 | MODULE_LICENSE("GPL"); |