Commit | Line | Data |
---|---|---|
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> | |
d98ad83e | 5 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
f0706e82 JB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 as | |
9 | * published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <net/mac80211.h> | |
f0706e82 JB |
13 | #include <linux/module.h> |
14 | #include <linux/init.h> | |
15 | #include <linux/netdevice.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/skbuff.h> | |
19 | #include <linux/etherdevice.h> | |
20 | #include <linux/if_arp.h> | |
f0706e82 | 21 | #include <linux/rtnetlink.h> |
f0706e82 | 22 | #include <linux/bitmap.h> |
68542962 | 23 | #include <linux/inetdevice.h> |
881d966b | 24 | #include <net/net_namespace.h> |
f0706e82 | 25 | #include <net/cfg80211.h> |
a65240c1 | 26 | #include <net/addrconf.h> |
f0706e82 | 27 | |
f0706e82 | 28 | #include "ieee80211_i.h" |
24487981 | 29 | #include "driver-ops.h" |
2c8dccc7 | 30 | #include "rate.h" |
f7a92144 | 31 | #include "mesh.h" |
f0706e82 | 32 | #include "wep.h" |
2c8dccc7 | 33 | #include "led.h" |
e9f207f0 | 34 | #include "debugfs.h" |
f0706e82 | 35 | |
0d143fe1 | 36 | void ieee80211_configure_filter(struct ieee80211_local *local) |
4150c572 | 37 | { |
3ac64bee | 38 | u64 mc; |
4150c572 JB |
39 | unsigned int changed_flags; |
40 | unsigned int new_flags = 0; | |
41 | ||
53918994 | 42 | if (atomic_read(&local->iff_allmultis)) |
4150c572 JB |
43 | new_flags |= FIF_ALLMULTI; |
44 | ||
8a690674 BG |
45 | if (local->monitors || test_bit(SCAN_SW_SCANNING, &local->scanning) || |
46 | test_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning)) | |
8cc9a739 MW |
47 | new_flags |= FIF_BCN_PRBRESP_PROMISC; |
48 | ||
7be5086d JB |
49 | if (local->fif_probe_req || local->probe_req_reg) |
50 | new_flags |= FIF_PROBE_REQ; | |
51 | ||
8cc9a739 MW |
52 | if (local->fif_fcsfail) |
53 | new_flags |= FIF_FCSFAIL; | |
54 | ||
55 | if (local->fif_plcpfail) | |
56 | new_flags |= FIF_PLCPFAIL; | |
57 | ||
58 | if (local->fif_control) | |
59 | new_flags |= FIF_CONTROL; | |
60 | ||
61 | if (local->fif_other_bss) | |
62 | new_flags |= FIF_OTHER_BSS; | |
4150c572 | 63 | |
e3b90ca2 IP |
64 | if (local->fif_pspoll) |
65 | new_flags |= FIF_PSPOLL; | |
66 | ||
3ac64bee | 67 | spin_lock_bh(&local->filter_lock); |
4150c572 JB |
68 | changed_flags = local->filter_flags ^ new_flags; |
69 | ||
22bedad3 | 70 | mc = drv_prepare_multicast(local, &local->mc_list); |
3ac64bee JB |
71 | spin_unlock_bh(&local->filter_lock); |
72 | ||
4150c572 JB |
73 | /* be a bit nasty */ |
74 | new_flags |= (1<<31); | |
75 | ||
3ac64bee | 76 | drv_configure_filter(local, changed_flags, &new_flags, mc); |
4150c572 JB |
77 | |
78 | WARN_ON(new_flags & (1<<31)); | |
79 | ||
80 | local->filter_flags = new_flags & ~(1<<31); | |
81 | } | |
82 | ||
3ac64bee JB |
83 | static void ieee80211_reconfig_filter(struct work_struct *work) |
84 | { | |
85 | struct ieee80211_local *local = | |
86 | container_of(work, struct ieee80211_local, reconfig_filter); | |
87 | ||
88 | ieee80211_configure_filter(local); | |
89 | } | |
90 | ||
55de908a | 91 | static u32 ieee80211_hw_conf_chan(struct ieee80211_local *local) |
b2c258fb | 92 | { |
1ea6f9c0 | 93 | struct ieee80211_sub_if_data *sdata; |
675a0b04 | 94 | struct cfg80211_chan_def chandef = {}; |
55de908a | 95 | u32 changed = 0; |
e8975581 | 96 | int power; |
ffd2778b | 97 | u32 offchannel_flag; |
f0706e82 | 98 | |
ffd2778b | 99 | offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
675a0b04 | 100 | |
7ca15a0a SW |
101 | if (local->scan_chandef.chan) { |
102 | chandef = local->scan_chandef; | |
b23b025f | 103 | } else if (local->tmp_channel) { |
675a0b04 KB |
104 | chandef.chan = local->tmp_channel; |
105 | chandef.width = NL80211_CHAN_WIDTH_20_NOHT; | |
106 | chandef.center_freq1 = chandef.chan->center_freq; | |
107 | } else | |
108 | chandef = local->_oper_chandef; | |
109 | ||
110 | WARN(!cfg80211_chandef_valid(&chandef), | |
111 | "control:%d MHz width:%d center: %d/%d MHz", | |
112 | chandef.chan->center_freq, chandef.width, | |
113 | chandef.center_freq1, chandef.center_freq2); | |
114 | ||
115 | if (!cfg80211_chandef_identical(&chandef, &local->_oper_chandef)) | |
b23b025f BG |
116 | local->hw.conf.flags |= IEEE80211_CONF_OFFCHANNEL; |
117 | else | |
118 | local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL; | |
119 | ||
ffd2778b | 120 | offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL; |
f0706e82 | 121 | |
675a0b04 KB |
122 | if (offchannel_flag || |
123 | !cfg80211_chandef_identical(&local->hw.conf.chandef, | |
124 | &local->_oper_chandef)) { | |
125 | local->hw.conf.chandef = chandef; | |
e8975581 JB |
126 | changed |= IEEE80211_CONF_CHANGE_CHANNEL; |
127 | } | |
8318d78a | 128 | |
0f78231b JB |
129 | if (!conf_is_ht(&local->hw.conf)) { |
130 | /* | |
131 | * mac80211.h documents that this is only valid | |
132 | * when the channel is set to an HT type, and | |
133 | * that otherwise STATIC is used. | |
134 | */ | |
135 | local->hw.conf.smps_mode = IEEE80211_SMPS_STATIC; | |
136 | } else if (local->hw.conf.smps_mode != local->smps_mode) { | |
137 | local->hw.conf.smps_mode = local->smps_mode; | |
138 | changed |= IEEE80211_CONF_CHANGE_SMPS; | |
139 | } | |
140 | ||
0430c883 | 141 | power = ieee80211_chandef_max_power(&chandef); |
a8302de9 | 142 | |
1ea6f9c0 JB |
143 | rcu_read_lock(); |
144 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
145 | if (!rcu_access_pointer(sdata->vif.chanctx_conf)) | |
146 | continue; | |
764152ff FF |
147 | if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
148 | continue; | |
1ea6f9c0 JB |
149 | power = min(power, sdata->vif.bss_conf.txpower); |
150 | } | |
151 | rcu_read_unlock(); | |
a8302de9 | 152 | |
e8975581 JB |
153 | if (local->hw.conf.power_level != power) { |
154 | changed |= IEEE80211_CONF_CHANGE_POWER; | |
155 | local->hw.conf.power_level = power; | |
156 | } | |
b2c258fb | 157 | |
55de908a JB |
158 | return changed; |
159 | } | |
160 | ||
161 | int ieee80211_hw_config(struct ieee80211_local *local, u32 changed) | |
162 | { | |
163 | int ret = 0; | |
164 | ||
165 | might_sleep(); | |
166 | ||
167 | if (!local->use_chanctx) | |
168 | changed |= ieee80211_hw_conf_chan(local); | |
169 | else | |
170 | changed &= ~(IEEE80211_CONF_CHANGE_CHANNEL | | |
171 | IEEE80211_CONF_CHANGE_POWER); | |
172 | ||
e8975581 | 173 | if (changed && local->open_count) { |
24487981 | 174 | ret = drv_config(local, changed); |
d73782fd | 175 | /* |
447107fb | 176 | * Goal: |
d73782fd JB |
177 | * HW reconfiguration should never fail, the driver has told |
178 | * us what it can support so it should live up to that promise. | |
447107fb RC |
179 | * |
180 | * Current status: | |
181 | * rfkill is not integrated with mac80211 and a | |
182 | * configuration command can thus fail if hardware rfkill | |
183 | * is enabled | |
184 | * | |
185 | * FIXME: integrate rfkill with mac80211 and then add this | |
186 | * WARN_ON() back | |
187 | * | |
d73782fd | 188 | */ |
447107fb | 189 | /* WARN_ON(ret); */ |
d73782fd | 190 | } |
f0706e82 | 191 | |
b2c258fb JB |
192 | return ret; |
193 | } | |
f0706e82 | 194 | |
471b3efd JB |
195 | void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, |
196 | u32 changed) | |
d9430a32 | 197 | { |
471b3efd JB |
198 | struct ieee80211_local *local = sdata->local; |
199 | ||
990baec0 | 200 | if (!changed || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) |
471b3efd JB |
201 | return; |
202 | ||
12375ef9 | 203 | drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed); |
d9430a32 DD |
204 | } |
205 | ||
f698d856 | 206 | u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata) |
d9430a32 | 207 | { |
bda3933a JB |
208 | sdata->vif.bss_conf.use_cts_prot = false; |
209 | sdata->vif.bss_conf.use_short_preamble = false; | |
210 | sdata->vif.bss_conf.use_short_slot = false; | |
7a5158ef JB |
211 | return BSS_CHANGED_ERP_CTS_PROT | |
212 | BSS_CHANGED_ERP_PREAMBLE | | |
213 | BSS_CHANGED_ERP_SLOT; | |
d9430a32 DD |
214 | } |
215 | ||
f0706e82 JB |
216 | static void ieee80211_tasklet_handler(unsigned long data) |
217 | { | |
218 | struct ieee80211_local *local = (struct ieee80211_local *) data; | |
219 | struct sk_buff *skb; | |
f0706e82 JB |
220 | |
221 | while ((skb = skb_dequeue(&local->skb_queue)) || | |
222 | (skb = skb_dequeue(&local->skb_queue_unreliable))) { | |
223 | switch (skb->pkt_type) { | |
224 | case IEEE80211_RX_MSG: | |
51fb61e7 | 225 | /* Clear skb->pkt_type in order to not confuse kernel |
f0706e82 JB |
226 | * netstack. */ |
227 | skb->pkt_type = 0; | |
005e472b | 228 | ieee80211_rx(&local->hw, skb); |
f0706e82 JB |
229 | break; |
230 | case IEEE80211_TX_STATUS_MSG: | |
f0706e82 | 231 | skb->pkt_type = 0; |
005e472b | 232 | ieee80211_tx_status(&local->hw, skb); |
f0706e82 | 233 | break; |
f4ea83dd | 234 | default: |
5e3f3089 LF |
235 | WARN(1, "mac80211: Packet is of unknown type %d\n", |
236 | skb->pkt_type); | |
f0706e82 JB |
237 | dev_kfree_skb(skb); |
238 | break; | |
239 | } | |
240 | } | |
241 | } | |
242 | ||
f2753ddb JB |
243 | static void ieee80211_restart_work(struct work_struct *work) |
244 | { | |
245 | struct ieee80211_local *local = | |
246 | container_of(work, struct ieee80211_local, restart_work); | |
ab499db8 | 247 | struct ieee80211_sub_if_data *sdata; |
f2753ddb | 248 | |
bc86863d SG |
249 | /* wait for scan work complete */ |
250 | flush_workqueue(local->workqueue); | |
251 | ||
d43c6b6e DS |
252 | WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), |
253 | "%s called with hardware scan in progress\n", __func__); | |
bc86863d | 254 | |
f2753ddb | 255 | rtnl_lock(); |
ab499db8 MK |
256 | list_for_each_entry(sdata, &local->interfaces, list) |
257 | flush_delayed_work(&sdata->dec_tailroom_needed_wk); | |
4136c422 | 258 | ieee80211_scan_cancel(local); |
470f4d61 EP |
259 | |
260 | /* make sure any new ROC will consider local->in_reconfig */ | |
261 | flush_delayed_work(&local->roc_work); | |
262 | flush_work(&local->hw_roc_done); | |
263 | ||
f2753ddb JB |
264 | ieee80211_reconfig(local); |
265 | rtnl_unlock(); | |
266 | } | |
267 | ||
268 | void ieee80211_restart_hw(struct ieee80211_hw *hw) | |
269 | { | |
270 | struct ieee80211_local *local = hw_to_local(hw); | |
271 | ||
b5878a2d JB |
272 | trace_api_restart_hw(local); |
273 | ||
b196d031 MB |
274 | wiphy_info(hw->wiphy, |
275 | "Hardware restart was requested\n"); | |
276 | ||
18145c69 | 277 | /* use this reason, ieee80211_reconfig will unblock it */ |
445ea4e8 | 278 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
279 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
280 | false); | |
f2753ddb | 281 | |
04800ada AN |
282 | /* |
283 | * Stop all Rx during the reconfig. We don't want state changes | |
284 | * or driver callbacks while this is in progress. | |
285 | */ | |
286 | local->in_reconfig = true; | |
287 | barrier(); | |
288 | ||
43d6df00 | 289 | queue_work(system_freezable_wq, &local->restart_work); |
f2753ddb JB |
290 | } |
291 | EXPORT_SYMBOL(ieee80211_restart_hw); | |
292 | ||
26b36cfe | 293 | #ifdef CONFIG_INET |
2b2c009e JO |
294 | static int ieee80211_ifa_changed(struct notifier_block *nb, |
295 | unsigned long data, void *arg) | |
296 | { | |
297 | struct in_ifaddr *ifa = arg; | |
298 | struct ieee80211_local *local = | |
299 | container_of(nb, struct ieee80211_local, | |
300 | ifa_notifier); | |
301 | struct net_device *ndev = ifa->ifa_dev->dev; | |
302 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
68542962 | 303 | struct in_device *idev; |
2b2c009e | 304 | struct ieee80211_sub_if_data *sdata; |
68542962 | 305 | struct ieee80211_bss_conf *bss_conf; |
2b2c009e | 306 | struct ieee80211_if_managed *ifmgd; |
68542962 | 307 | int c = 0; |
2b2c009e JO |
308 | |
309 | /* Make sure it's our interface that got changed */ | |
310 | if (!wdev) | |
311 | return NOTIFY_DONE; | |
312 | ||
313 | if (wdev->wiphy != local->hw.wiphy) | |
314 | return NOTIFY_DONE; | |
315 | ||
2b2c009e | 316 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); |
68542962 | 317 | bss_conf = &sdata->vif.bss_conf; |
2b2c009e JO |
318 | |
319 | /* ARP filtering is only supported in managed mode */ | |
320 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
321 | return NOTIFY_DONE; | |
322 | ||
95ae6b22 | 323 | idev = __in_dev_get_rtnl(sdata->dev); |
68542962 JO |
324 | if (!idev) |
325 | return NOTIFY_DONE; | |
326 | ||
2b2c009e | 327 | ifmgd = &sdata->u.mgd; |
8d61ffa5 | 328 | sdata_lock(sdata); |
68542962 JO |
329 | |
330 | /* Copy the addresses to the bss_conf list */ | |
331 | ifa = idev->ifa_list; | |
0f19b41e JB |
332 | while (ifa) { |
333 | if (c < IEEE80211_BSS_ARP_ADDR_LIST_LEN) | |
334 | bss_conf->arp_addr_list[c] = ifa->ifa_address; | |
68542962 JO |
335 | ifa = ifa->ifa_next; |
336 | c++; | |
337 | } | |
338 | ||
68542962 JO |
339 | bss_conf->arp_addr_cnt = c; |
340 | ||
53d69c39 | 341 | /* Configure driver only if associated (which also implies it is up) */ |
0f19b41e | 342 | if (ifmgd->associated) |
68542962 JO |
343 | ieee80211_bss_info_change_notify(sdata, |
344 | BSS_CHANGED_ARP_FILTER); | |
68542962 | 345 | |
8d61ffa5 | 346 | sdata_unlock(sdata); |
2b2c009e | 347 | |
8bd811aa | 348 | return NOTIFY_OK; |
2b2c009e | 349 | } |
26b36cfe | 350 | #endif |
2b2c009e | 351 | |
a65240c1 JB |
352 | #if IS_ENABLED(CONFIG_IPV6) |
353 | static int ieee80211_ifa6_changed(struct notifier_block *nb, | |
354 | unsigned long data, void *arg) | |
355 | { | |
356 | struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; | |
357 | struct inet6_dev *idev = ifa->idev; | |
358 | struct net_device *ndev = ifa->idev->dev; | |
359 | struct ieee80211_local *local = | |
360 | container_of(nb, struct ieee80211_local, ifa6_notifier); | |
361 | struct wireless_dev *wdev = ndev->ieee80211_ptr; | |
362 | struct ieee80211_sub_if_data *sdata; | |
363 | ||
364 | /* Make sure it's our interface that got changed */ | |
365 | if (!wdev || wdev->wiphy != local->hw.wiphy) | |
366 | return NOTIFY_DONE; | |
367 | ||
368 | sdata = IEEE80211_DEV_TO_SUB_IF(ndev); | |
369 | ||
370 | /* | |
371 | * For now only support station mode. This is mostly because | |
372 | * doing AP would have to handle AP_VLAN in some way ... | |
373 | */ | |
374 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
375 | return NOTIFY_DONE; | |
376 | ||
377 | drv_ipv6_addr_change(local, sdata, idev); | |
378 | ||
8bd811aa | 379 | return NOTIFY_OK; |
a65240c1 JB |
380 | } |
381 | #endif | |
382 | ||
2e161f78 JB |
383 | /* There isn't a lot of sense in it, but you can transmit anything you like */ |
384 | static const struct ieee80211_txrx_stypes | |
385 | ieee80211_default_mgmt_stypes[NUM_NL80211_IFTYPES] = { | |
386 | [NL80211_IFTYPE_ADHOC] = { | |
387 | .tx = 0xffff, | |
3bfda62c WH |
388 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
389 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
41e31b8b AQ |
390 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | |
391 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
2e161f78 JB |
392 | }, |
393 | [NL80211_IFTYPE_STATION] = { | |
394 | .tx = 0xffff, | |
395 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
396 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
397 | }, | |
398 | [NL80211_IFTYPE_AP] = { | |
399 | .tx = 0xffff, | |
400 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
401 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
402 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
403 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
404 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
405 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
406 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
407 | }, | |
408 | [NL80211_IFTYPE_AP_VLAN] = { | |
409 | /* copy AP */ | |
410 | .tx = 0xffff, | |
411 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
412 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
413 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
414 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | | |
415 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
416 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
2ca27bcf JB |
417 | BIT(IEEE80211_STYPE_ACTION >> 4), |
418 | }, | |
419 | [NL80211_IFTYPE_P2P_CLIENT] = { | |
420 | .tx = 0xffff, | |
421 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
422 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
423 | }, | |
424 | [NL80211_IFTYPE_P2P_GO] = { | |
425 | .tx = 0xffff, | |
426 | .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | | |
427 | BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | | |
428 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | | |
2e161f78 JB |
429 | BIT(IEEE80211_STYPE_DISASSOC >> 4) | |
430 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
431 | BIT(IEEE80211_STYPE_DEAUTH >> 4) | | |
432 | BIT(IEEE80211_STYPE_ACTION >> 4), | |
433 | }, | |
c7108a71 JC |
434 | [NL80211_IFTYPE_MESH_POINT] = { |
435 | .tx = 0xffff, | |
71839121 JC |
436 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
437 | BIT(IEEE80211_STYPE_AUTH >> 4) | | |
438 | BIT(IEEE80211_STYPE_DEAUTH >> 4), | |
c7108a71 | 439 | }, |
f142c6b9 JB |
440 | [NL80211_IFTYPE_P2P_DEVICE] = { |
441 | .tx = 0xffff, | |
442 | .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | | |
443 | BIT(IEEE80211_STYPE_PROBE_REQ >> 4), | |
444 | }, | |
2e161f78 JB |
445 | }; |
446 | ||
ef96a842 BG |
447 | static const struct ieee80211_ht_cap mac80211_ht_capa_mod_mask = { |
448 | .ampdu_params_info = IEEE80211_HT_AMPDU_PARM_FACTOR | | |
449 | IEEE80211_HT_AMPDU_PARM_DENSITY, | |
450 | ||
451 | .cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | | |
452 | IEEE80211_HT_CAP_MAX_AMSDU | | |
bc0784d9 | 453 | IEEE80211_HT_CAP_SGI_20 | |
a2e7495d | 454 | IEEE80211_HT_CAP_SGI_40 | |
9a07bf50 JM |
455 | IEEE80211_HT_CAP_LDPC_CODING | |
456 | IEEE80211_HT_CAP_40MHZ_INTOLERANT), | |
ef96a842 BG |
457 | .mcs = { |
458 | .rx_mask = { 0xff, 0xff, 0xff, 0xff, 0xff, | |
459 | 0xff, 0xff, 0xff, 0xff, 0xff, }, | |
460 | }, | |
461 | }; | |
462 | ||
dd5ecfea JB |
463 | static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = { |
464 | .vht_cap_info = | |
465 | cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC | | |
466 | IEEE80211_VHT_CAP_SHORT_GI_80 | | |
467 | IEEE80211_VHT_CAP_SHORT_GI_160 | | |
468 | IEEE80211_VHT_CAP_RXSTBC_1 | | |
469 | IEEE80211_VHT_CAP_RXSTBC_2 | | |
470 | IEEE80211_VHT_CAP_RXSTBC_3 | | |
471 | IEEE80211_VHT_CAP_RXSTBC_4 | | |
472 | IEEE80211_VHT_CAP_TXSTBC | | |
473 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | | |
474 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | | |
475 | IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN | | |
476 | IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | | |
477 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK), | |
478 | .supp_mcs = { | |
479 | .rx_mcs_map = cpu_to_le16(~0), | |
480 | .tx_mcs_map = cpu_to_le16(~0), | |
481 | }, | |
482 | }; | |
483 | ||
ad28757e BG |
484 | struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, |
485 | const struct ieee80211_ops *ops, | |
486 | const char *requested_name) | |
f0706e82 | 487 | { |
f0706e82 | 488 | struct ieee80211_local *local; |
96f5e66e | 489 | int priv_size, i; |
f0706e82 | 490 | struct wiphy *wiphy; |
fe57d9f5 | 491 | bool use_chanctx; |
f0706e82 | 492 | |
c0af0734 JB |
493 | if (WARN_ON(!ops->tx || !ops->start || !ops->stop || !ops->config || |
494 | !ops->add_interface || !ops->remove_interface || | |
495 | !ops->configure_filter)) | |
496 | return NULL; | |
497 | ||
f09603a2 JB |
498 | if (WARN_ON(ops->sta_state && (ops->sta_add || ops->sta_remove))) |
499 | return NULL; | |
500 | ||
e269d860 JB |
501 | /* check all or no channel context operations exist */ |
502 | i = !!ops->add_chanctx + !!ops->remove_chanctx + | |
503 | !!ops->change_chanctx + !!ops->assign_vif_chanctx + | |
504 | !!ops->unassign_vif_chanctx; | |
505 | if (WARN_ON(i != 0 && i != 5)) | |
506 | return NULL; | |
fe57d9f5 | 507 | use_chanctx = i == 5; |
e269d860 | 508 | |
f0706e82 JB |
509 | /* Ensure 32-byte alignment of our private data and hw private data. |
510 | * We use the wiphy priv data for both our ieee80211_local and for | |
511 | * the driver's private data | |
512 | * | |
513 | * In memory it'll be like this: | |
514 | * | |
515 | * +-------------------------+ | |
516 | * | struct wiphy | | |
517 | * +-------------------------+ | |
518 | * | struct ieee80211_local | | |
519 | * +-------------------------+ | |
520 | * | driver's private data | | |
521 | * +-------------------------+ | |
522 | * | |
523 | */ | |
1ce8e7b5 | 524 | priv_size = ALIGN(sizeof(*local), NETDEV_ALIGN) + priv_data_len; |
f0706e82 | 525 | |
ad28757e | 526 | wiphy = wiphy_new_nm(&mac80211_config_ops, priv_size, requested_name); |
f0706e82 JB |
527 | |
528 | if (!wiphy) | |
529 | return NULL; | |
530 | ||
2e161f78 JB |
531 | wiphy->mgmt_stypes = ieee80211_default_mgmt_stypes; |
532 | ||
207aba60 JB |
533 | wiphy->privid = mac80211_wiphy_privid; |
534 | ||
9bc383de JB |
535 | wiphy->flags |= WIPHY_FLAG_NETNS_OK | |
536 | WIPHY_FLAG_4ADDR_AP | | |
ee971924 | 537 | WIPHY_FLAG_4ADDR_STATION | |
7c4ef712 | 538 | WIPHY_FLAG_REPORTS_OBSS | |
81ddbb5c JB |
539 | WIPHY_FLAG_OFFCHAN_TX; |
540 | ||
541 | if (ops->remain_on_channel) | |
542 | wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; | |
207aba60 | 543 | |
b292219f JB |
544 | wiphy->features |= NL80211_FEATURE_SK_TX_STATUS | |
545 | NL80211_FEATURE_SAE | | |
1ea6f9c0 | 546 | NL80211_FEATURE_HT_IBSS | |
a6dad6a2 | 547 | NL80211_FEATURE_VIF_TXPOWER | |
b5dfae02 | 548 | NL80211_FEATURE_MAC_ON_CREATE | |
90f9ba9b JB |
549 | NL80211_FEATURE_USERSPACE_MPM | |
550 | NL80211_FEATURE_FULL_AP_CLIENT_STATE; | |
a729cff8 | 551 | |
cd2bb512 | 552 | if (!ops->hw_scan) |
5c95b940 AQ |
553 | wiphy->features |= NL80211_FEATURE_LOW_PRIORITY_SCAN | |
554 | NL80211_FEATURE_AP_SCAN; | |
555 | ||
cd2bb512 | 556 | |
207aba60 JB |
557 | if (!ops->set_key) |
558 | wiphy->flags |= WIPHY_FLAG_IBSS_RSN; | |
18a83659 | 559 | |
0c1ad2ca | 560 | wiphy->bss_priv_size = sizeof(struct ieee80211_bss); |
f0706e82 JB |
561 | |
562 | local = wiphy_priv(wiphy); | |
de95a54b | 563 | |
7bedd0cf JB |
564 | if (sta_info_init(local)) |
565 | goto err_free; | |
566 | ||
f0706e82 JB |
567 | local->hw.wiphy = wiphy; |
568 | ||
1ce8e7b5 | 569 | local->hw.priv = (char *)local + ALIGN(sizeof(*local), NETDEV_ALIGN); |
f0706e82 JB |
570 | |
571 | local->ops = ops; | |
fe57d9f5 | 572 | local->use_chanctx = use_chanctx; |
f0706e82 | 573 | |
e6a9854b JB |
574 | /* set up some defaults */ |
575 | local->hw.queues = 1; | |
576 | local->hw.max_rates = 1; | |
78be49ec | 577 | local->hw.max_report_rates = 0; |
df6ba5d8 | 578 | local->hw.max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
39e68712 | 579 | local->hw.max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF; |
3a25a8c8 | 580 | local->hw.offchannel_tx_hw_queue = IEEE80211_INVAL_HW_QUEUE; |
b9a5f8ca JM |
581 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
582 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
ac55d2fe JB |
583 | local->hw.radiotap_mcs_details = IEEE80211_RADIOTAP_MCS_HAVE_MCS | |
584 | IEEE80211_RADIOTAP_MCS_HAVE_GI | | |
585 | IEEE80211_RADIOTAP_MCS_HAVE_BW; | |
51648921 JB |
586 | local->hw.radiotap_vht_details = IEEE80211_RADIOTAP_VHT_KNOWN_GI | |
587 | IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH; | |
219c3867 AB |
588 | local->hw.uapsd_queues = IEEE80211_DEFAULT_UAPSD_QUEUES; |
589 | local->hw.uapsd_max_sp_len = IEEE80211_DEFAULT_MAX_SP_LEN; | |
1ea6f9c0 | 590 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
ef96a842 | 591 | wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask; |
dd5ecfea | 592 | wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask; |
f0706e82 | 593 | |
e9a21949 LC |
594 | local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF; |
595 | ||
596 | wiphy->extended_capabilities = local->ext_capa; | |
597 | wiphy->extended_capabilities_mask = local->ext_capa; | |
598 | wiphy->extended_capabilities_len = | |
599 | ARRAY_SIZE(local->ext_capa); | |
600 | ||
79010420 | 601 | INIT_LIST_HEAD(&local->interfaces); |
2f787b0b YH |
602 | |
603 | __hw_addr_init(&local->mc_list); | |
604 | ||
c771c9d8 | 605 | mutex_init(&local->iflist_mtx); |
a1699b75 | 606 | mutex_init(&local->mtx); |
f0706e82 | 607 | |
ad0e2b5a | 608 | mutex_init(&local->key_mtx); |
3b8d81e0 | 609 | spin_lock_init(&local->filter_lock); |
f9e124fb | 610 | spin_lock_init(&local->rx_path_lock); |
ce7c9111 KV |
611 | spin_lock_init(&local->queue_stop_reason_lock); |
612 | ||
d01a1e65 MK |
613 | INIT_LIST_HEAD(&local->chanctx_list); |
614 | mutex_init(&local->chanctx_mtx); | |
615 | ||
c2b13452 | 616 | INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); |
f0706e82 | 617 | |
f2753ddb JB |
618 | INIT_WORK(&local->restart_work, ieee80211_restart_work); |
619 | ||
164eb02d SW |
620 | INIT_WORK(&local->radar_detected_work, |
621 | ieee80211_dfs_radar_detected_work); | |
622 | ||
3ac64bee | 623 | INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); |
0f78231b | 624 | local->smps_mode = IEEE80211_SMPS_OFF; |
3ac64bee | 625 | |
520eb820 KV |
626 | INIT_WORK(&local->dynamic_ps_enable_work, |
627 | ieee80211_dynamic_ps_enable_work); | |
628 | INIT_WORK(&local->dynamic_ps_disable_work, | |
629 | ieee80211_dynamic_ps_disable_work); | |
630 | setup_timer(&local->dynamic_ps_timer, | |
631 | ieee80211_dynamic_ps_timer, (unsigned long) local); | |
632 | ||
85a9994a LC |
633 | INIT_WORK(&local->sched_scan_stopped_work, |
634 | ieee80211_sched_scan_stopped_work); | |
635 | ||
c8ff71e6 AN |
636 | INIT_WORK(&local->tdls_chsw_work, ieee80211_tdls_chsw_work); |
637 | ||
a729cff8 JB |
638 | spin_lock_init(&local->ack_status_lock); |
639 | idr_init(&local->ack_status_frames); | |
a729cff8 | 640 | |
a6a67db2 | 641 | for (i = 0; i < IEEE80211_MAX_QUEUES; i++) { |
2a577d98 | 642 | skb_queue_head_init(&local->pending[i]); |
a6a67db2 JB |
643 | atomic_set(&local->agg_queue_stop[i], 0); |
644 | } | |
f0706e82 JB |
645 | tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, |
646 | (unsigned long)local); | |
f0706e82 JB |
647 | |
648 | tasklet_init(&local->tasklet, | |
649 | ieee80211_tasklet_handler, | |
650 | (unsigned long) local); | |
f0706e82 JB |
651 | |
652 | skb_queue_head_init(&local->skb_queue); | |
653 | skb_queue_head_init(&local->skb_queue_unreliable); | |
c8ff71e6 | 654 | skb_queue_head_init(&local->skb_queue_tdls_chsw); |
f0706e82 | 655 | |
8d5c2585 | 656 | ieee80211_alloc_led_names(local); |
fe67c913 | 657 | |
2eb278e0 | 658 | ieee80211_roc_setup(local); |
21f83589 | 659 | |
005e472b | 660 | return &local->hw; |
7bedd0cf JB |
661 | err_free: |
662 | wiphy_free(wiphy); | |
663 | return NULL; | |
f0706e82 | 664 | } |
ad28757e | 665 | EXPORT_SYMBOL(ieee80211_alloc_hw_nm); |
f0706e82 | 666 | |
2475b1cc | 667 | static int ieee80211_init_cipher_suites(struct ieee80211_local *local) |
f0706e82 | 668 | { |
2475b1cc MS |
669 | bool have_wep = !(IS_ERR(local->wep_tx_tfm) || |
670 | IS_ERR(local->wep_rx_tfm)); | |
30686bf7 | 671 | bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); |
2475b1cc MS |
672 | int n_suites = 0, r = 0, w = 0; |
673 | u32 *suites; | |
25e47c18 | 674 | static const u32 cipher_suites[] = { |
5daa8a8e | 675 | /* keep WEP first, it may be removed below */ |
25e47c18 JB |
676 | WLAN_CIPHER_SUITE_WEP40, |
677 | WLAN_CIPHER_SUITE_WEP104, | |
678 | WLAN_CIPHER_SUITE_TKIP, | |
679 | WLAN_CIPHER_SUITE_CCMP, | |
2b2ba0db | 680 | WLAN_CIPHER_SUITE_CCMP_256, |
00b9cfa3 JM |
681 | WLAN_CIPHER_SUITE_GCMP, |
682 | WLAN_CIPHER_SUITE_GCMP_256, | |
25e47c18 JB |
683 | |
684 | /* keep last -- depends on hw flags! */ | |
56c52da2 JM |
685 | WLAN_CIPHER_SUITE_AES_CMAC, |
686 | WLAN_CIPHER_SUITE_BIP_CMAC_256, | |
8ade538b JM |
687 | WLAN_CIPHER_SUITE_BIP_GMAC_128, |
688 | WLAN_CIPHER_SUITE_BIP_GMAC_256, | |
25e47c18 | 689 | }; |
8318d78a | 690 | |
30686bf7 | 691 | if (ieee80211_hw_check(&local->hw, SW_CRYPTO_CONTROL) || |
fa7e1fbc JB |
692 | local->hw.wiphy->cipher_suites) { |
693 | /* If the driver advertises, or doesn't support SW crypto, | |
694 | * we only need to remove WEP if necessary. | |
695 | */ | |
696 | if (have_wep) | |
697 | return 0; | |
698 | ||
699 | /* well if it has _no_ ciphers ... fine */ | |
700 | if (!local->hw.wiphy->n_cipher_suites) | |
701 | return 0; | |
702 | ||
703 | /* Driver provides cipher suites, but we need to exclude WEP */ | |
704 | suites = kmemdup(local->hw.wiphy->cipher_suites, | |
705 | sizeof(u32) * local->hw.wiphy->n_cipher_suites, | |
706 | GFP_KERNEL); | |
707 | if (!suites) | |
708 | return -ENOMEM; | |
2475b1cc | 709 | |
fa7e1fbc JB |
710 | for (r = 0; r < local->hw.wiphy->n_cipher_suites; r++) { |
711 | u32 suite = local->hw.wiphy->cipher_suites[r]; | |
712 | ||
713 | if (suite == WLAN_CIPHER_SUITE_WEP40 || | |
714 | suite == WLAN_CIPHER_SUITE_WEP104) | |
715 | continue; | |
716 | suites[w++] = suite; | |
717 | } | |
718 | } else if (!local->hw.cipher_schemes) { | |
719 | /* If the driver doesn't have cipher schemes, there's nothing | |
720 | * else to do other than assign the (software supported and | |
721 | * perhaps offloaded) cipher suites. | |
722 | */ | |
2475b1cc MS |
723 | local->hw.wiphy->cipher_suites = cipher_suites; |
724 | local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); | |
725 | ||
726 | if (!have_mfp) | |
8ade538b | 727 | local->hw.wiphy->n_cipher_suites -= 4; |
2475b1cc MS |
728 | |
729 | if (!have_wep) { | |
730 | local->hw.wiphy->cipher_suites += 2; | |
731 | local->hw.wiphy->n_cipher_suites -= 2; | |
732 | } | |
733 | ||
fa7e1fbc | 734 | /* not dynamically allocated, so just return */ |
2475b1cc | 735 | return 0; |
fa7e1fbc JB |
736 | } else { |
737 | const struct ieee80211_cipher_scheme *cs; | |
2475b1cc | 738 | |
fa7e1fbc JB |
739 | cs = local->hw.cipher_schemes; |
740 | ||
741 | /* Driver specifies cipher schemes only (but not cipher suites | |
742 | * including the schemes) | |
743 | * | |
00b9cfa3 | 744 | * We start counting ciphers defined by schemes, TKIP, CCMP, |
2b2ba0db | 745 | * CCMP-256, GCMP, and GCMP-256 |
2475b1cc | 746 | */ |
2b2ba0db | 747 | n_suites = local->hw.n_cipher_schemes + 5; |
2475b1cc MS |
748 | |
749 | /* check if we have WEP40 and WEP104 */ | |
750 | if (have_wep) | |
751 | n_suites += 2; | |
752 | ||
8ade538b JM |
753 | /* check if we have AES_CMAC, BIP-CMAC-256, BIP-GMAC-128, |
754 | * BIP-GMAC-256 | |
755 | */ | |
2475b1cc | 756 | if (have_mfp) |
8ade538b | 757 | n_suites += 4; |
2475b1cc MS |
758 | |
759 | suites = kmalloc(sizeof(u32) * n_suites, GFP_KERNEL); | |
760 | if (!suites) | |
761 | return -ENOMEM; | |
762 | ||
763 | suites[w++] = WLAN_CIPHER_SUITE_CCMP; | |
2b2ba0db | 764 | suites[w++] = WLAN_CIPHER_SUITE_CCMP_256; |
2475b1cc | 765 | suites[w++] = WLAN_CIPHER_SUITE_TKIP; |
00b9cfa3 JM |
766 | suites[w++] = WLAN_CIPHER_SUITE_GCMP; |
767 | suites[w++] = WLAN_CIPHER_SUITE_GCMP_256; | |
2475b1cc MS |
768 | |
769 | if (have_wep) { | |
770 | suites[w++] = WLAN_CIPHER_SUITE_WEP40; | |
771 | suites[w++] = WLAN_CIPHER_SUITE_WEP104; | |
772 | } | |
773 | ||
56c52da2 | 774 | if (have_mfp) { |
2475b1cc | 775 | suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC; |
56c52da2 | 776 | suites[w++] = WLAN_CIPHER_SUITE_BIP_CMAC_256; |
8ade538b JM |
777 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_128; |
778 | suites[w++] = WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
56c52da2 | 779 | } |
2475b1cc | 780 | |
e3a55b53 | 781 | for (r = 0; r < local->hw.n_cipher_schemes; r++) { |
2475b1cc | 782 | suites[w++] = cs[r].cipher; |
94c78cb4 JB |
783 | if (WARN_ON(cs[r].pn_len > IEEE80211_MAX_PN_LEN)) { |
784 | kfree(suites); | |
e3a55b53 | 785 | return -EINVAL; |
94c78cb4 | 786 | } |
e3a55b53 | 787 | } |
2475b1cc MS |
788 | } |
789 | ||
790 | local->hw.wiphy->cipher_suites = suites; | |
791 | local->hw.wiphy->n_cipher_suites = w; | |
792 | local->wiphy_ciphers_allocated = true; | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | int ieee80211_register_hw(struct ieee80211_hw *hw) | |
798 | { | |
799 | struct ieee80211_local *local = hw_to_local(hw); | |
800 | int result, i; | |
801 | enum ieee80211_band band; | |
802 | int channels, max_bitrates; | |
803 | bool supp_ht, supp_vht; | |
804 | netdev_features_t feature_whitelist; | |
805 | struct cfg80211_chan_def dflt_chandef = {}; | |
806 | ||
30686bf7 | 807 | if (ieee80211_hw_check(hw, QUEUE_CONTROL) && |
3a25a8c8 JB |
808 | (local->hw.offchannel_tx_hw_queue == IEEE80211_INVAL_HW_QUEUE || |
809 | local->hw.offchannel_tx_hw_queue >= local->hw.queues)) | |
810 | return -EINVAL; | |
811 | ||
a7a6bdd0 AN |
812 | if ((hw->wiphy->features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH) && |
813 | (!local->ops->tdls_channel_switch || | |
8a4d32f3 AN |
814 | !local->ops->tdls_cancel_channel_switch || |
815 | !local->ops->tdls_recv_channel_switch)) | |
a7a6bdd0 AN |
816 | return -EOPNOTSUPP; |
817 | ||
38bb3e9d | 818 | #ifdef CONFIG_PM |
964dc9e2 | 819 | if (hw->wiphy->wowlan && (!local->ops->suspend || !local->ops->resume)) |
eecc4800 | 820 | return -EINVAL; |
dfb89c56 | 821 | #endif |
eecc4800 | 822 | |
fe57d9f5 JB |
823 | if (!local->use_chanctx) { |
824 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { | |
825 | const struct ieee80211_iface_combination *comb; | |
826 | ||
827 | comb = &local->hw.wiphy->iface_combinations[i]; | |
828 | ||
829 | if (comb->num_different_channels > 1) | |
830 | return -EINVAL; | |
831 | } | |
746a3365 | 832 | } else { |
fe57d9f5 JB |
833 | /* |
834 | * WDS is currently prohibited when channel contexts are used | |
835 | * because there's no clear definition of which channel WDS | |
836 | * type interfaces use | |
837 | */ | |
838 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_WDS)) | |
839 | return -EINVAL; | |
164eb02d | 840 | |
486cf4c0 | 841 | /* DFS is not supported with multi-channel combinations yet */ |
164eb02d SW |
842 | for (i = 0; i < local->hw.wiphy->n_iface_combinations; i++) { |
843 | const struct ieee80211_iface_combination *comb; | |
844 | ||
845 | comb = &local->hw.wiphy->iface_combinations[i]; | |
846 | ||
486cf4c0 MK |
847 | if (comb->radar_detect_widths && |
848 | comb->num_different_channels > 1) | |
164eb02d SW |
849 | return -EINVAL; |
850 | } | |
fe57d9f5 JB |
851 | } |
852 | ||
72d78728 AN |
853 | /* Only HW csum features are currently compatible with mac80211 */ |
854 | feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
80616c0d JB |
855 | NETIF_F_HW_CSUM | NETIF_F_SG | NETIF_F_HIGHDMA | |
856 | NETIF_F_GSO_SOFTWARE; | |
72d78728 AN |
857 | if (WARN_ON(hw->netdev_features & ~feature_whitelist)) |
858 | return -EINVAL; | |
859 | ||
78be49ec HS |
860 | if (hw->max_report_rates == 0) |
861 | hw->max_report_rates = hw->max_rates; | |
862 | ||
04ecd257 JB |
863 | local->rx_chains = 1; |
864 | ||
8318d78a JB |
865 | /* |
866 | * generic code guarantees at least one band, | |
867 | * set this very early because much code assumes | |
868 | * that hw.conf.channel is assigned | |
869 | */ | |
2a519311 | 870 | channels = 0; |
de95a54b | 871 | max_bitrates = 0; |
5ef2d41a | 872 | supp_ht = false; |
ba0afa2f | 873 | supp_vht = false; |
8318d78a JB |
874 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
875 | struct ieee80211_supported_band *sband; | |
876 | ||
877 | sband = local->hw.wiphy->bands[band]; | |
de95a54b JB |
878 | if (!sband) |
879 | continue; | |
fffa4b1c KB |
880 | |
881 | if (!dflt_chandef.chan) { | |
882 | cfg80211_chandef_create(&dflt_chandef, | |
883 | &sband->channels[0], | |
884 | NL80211_CHAN_NO_HT); | |
8318d78a | 885 | /* init channel we're on */ |
fffa4b1c KB |
886 | if (!local->use_chanctx && !local->_oper_chandef.chan) { |
887 | local->hw.conf.chandef = dflt_chandef; | |
888 | local->_oper_chandef = dflt_chandef; | |
889 | } | |
890 | local->monitor_chandef = dflt_chandef; | |
8318d78a | 891 | } |
fffa4b1c | 892 | |
de95a54b JB |
893 | channels += sband->n_channels; |
894 | ||
895 | if (max_bitrates < sband->n_bitrates) | |
896 | max_bitrates = sband->n_bitrates; | |
5ef2d41a | 897 | supp_ht = supp_ht || sband->ht_cap.ht_supported; |
ba0afa2f | 898 | supp_vht = supp_vht || sband->vht_cap.vht_supported; |
04ecd257 JB |
899 | |
900 | if (sband->ht_cap.ht_supported) | |
901 | local->rx_chains = | |
902 | max(ieee80211_mcs_to_chains(&sband->ht_cap.mcs), | |
903 | local->rx_chains); | |
904 | ||
905 | /* TODO: consider VHT for RX chains, hopefully it's the same */ | |
8318d78a | 906 | } |
f0706e82 | 907 | |
f59ac048 | 908 | /* if low-level driver supports AP, we also support VLAN */ |
7527a782 JB |
909 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
910 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
911 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_AP_VLAN); | |
912 | } | |
f59ac048 LR |
913 | |
914 | /* mac80211 always supports monitor */ | |
7527a782 JB |
915 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); |
916 | hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); | |
917 | ||
55de908a | 918 | /* mac80211 doesn't support more than one IBSS interface right now */ |
8e621fc9 JB |
919 | for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { |
920 | const struct ieee80211_iface_combination *c; | |
921 | int j; | |
922 | ||
923 | c = &hw->wiphy->iface_combinations[i]; | |
924 | ||
8e621fc9 JB |
925 | for (j = 0; j < c->n_limits; j++) |
926 | if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && | |
927 | c->limits[j].max > 1) | |
928 | return -EINVAL; | |
929 | } | |
930 | ||
5b0ec94f JB |
931 | local->int_scan_req = kzalloc(sizeof(*local->int_scan_req) + |
932 | sizeof(void *) * channels, GFP_KERNEL); | |
933 | if (!local->int_scan_req) | |
934 | return -ENOMEM; | |
935 | ||
936 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
937 | if (!local->hw.wiphy->bands[band]) | |
938 | continue; | |
939 | local->int_scan_req->rates[band] = (u32) -1; | |
940 | } | |
941 | ||
5eb5a52d JB |
942 | #ifndef CONFIG_MAC80211_MESH |
943 | /* mesh depends on Kconfig, but drivers should set it if they want */ | |
944 | local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); | |
945 | #endif | |
946 | ||
1570ca59 JC |
947 | /* if the underlying driver supports mesh, mac80211 will (at least) |
948 | * provide routing of mesh authentication frames to userspace */ | |
949 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_MESH_POINT)) | |
950 | local->hw.wiphy->flags |= WIPHY_FLAG_MESH_AUTH; | |
951 | ||
a621fa4d JB |
952 | /* mac80211 supports control port protocol changing */ |
953 | local->hw.wiphy->flags |= WIPHY_FLAG_CONTROL_PORT_PROTOCOL; | |
954 | ||
30686bf7 | 955 | if (ieee80211_hw_check(&local->hw, SIGNAL_DBM)) { |
77965c97 | 956 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
30686bf7 | 957 | } else if (ieee80211_hw_check(&local->hw, SIGNAL_UNSPEC)) { |
77965c97 | 958 | local->hw.wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; |
52512072 | 959 | if (hw->max_signal <= 0) { |
960 | result = -EINVAL; | |
961 | goto fail_wiphy_register; | |
962 | } | |
963 | } | |
77965c97 | 964 | |
de95a54b JB |
965 | /* |
966 | * Calculate scan IE length -- we need this to alloc | |
967 | * memory and to subtract from the driver limit. It | |
dc9f48ce | 968 | * includes the DS Params, (extended) supported rates, and HT |
de95a54b JB |
969 | * information -- SSID is the driver's responsibility. |
970 | */ | |
dc9f48ce JM |
971 | local->scan_ies_len = 4 + max_bitrates /* (ext) supp rates */ + |
972 | 3 /* DS Params */; | |
5ef2d41a JB |
973 | if (supp_ht) |
974 | local->scan_ies_len += 2 + sizeof(struct ieee80211_ht_cap); | |
de95a54b | 975 | |
d0e6c21a | 976 | if (supp_vht) |
ba0afa2f | 977 | local->scan_ies_len += |
d4950281 | 978 | 2 + sizeof(struct ieee80211_vht_cap); |
ba0afa2f | 979 | |
de95a54b JB |
980 | if (!local->ops->hw_scan) { |
981 | /* For hw_scan, driver needs to set these up. */ | |
982 | local->hw.wiphy->max_scan_ssids = 4; | |
983 | local->hw.wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN; | |
984 | } | |
985 | ||
986 | /* | |
987 | * If the driver supports any scan IEs, then assume the | |
988 | * limit includes the IEs mac80211 will add, otherwise | |
989 | * leave it at zero and let the driver sort it out; we | |
990 | * still pass our IEs to the driver but userspace will | |
991 | * not be allowed to in that case. | |
992 | */ | |
993 | if (local->hw.wiphy->max_scan_ie_len) | |
994 | local->hw.wiphy->max_scan_ie_len -= local->scan_ies_len; | |
995 | ||
2475b1cc MS |
996 | WARN_ON(!ieee80211_cs_list_valid(local->hw.cipher_schemes, |
997 | local->hw.n_cipher_schemes)); | |
998 | ||
999 | result = ieee80211_init_cipher_suites(local); | |
1000 | if (result < 0) | |
1001 | goto fail_wiphy_register; | |
25e47c18 | 1002 | |
21f83589 JB |
1003 | if (!local->ops->remain_on_channel) |
1004 | local->hw.wiphy->max_remain_on_channel_duration = 5000; | |
a293911d | 1005 | |
dfe018bf AN |
1006 | /* mac80211 based drivers don't support internal TDLS setup */ |
1007 | if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) | |
1008 | local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP; | |
1009 | ||
e9a21949 | 1010 | /* mac80211 supports eCSA, if the driver supports STA CSA at all */ |
30686bf7 | 1011 | if (ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) |
e9a21949 LC |
1012 | local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING; |
1013 | ||
0d06d9ba AO |
1014 | local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM; |
1015 | ||
f0706e82 JB |
1016 | result = wiphy_register(local->hw.wiphy); |
1017 | if (result < 0) | |
2a519311 | 1018 | goto fail_wiphy_register; |
f0706e82 | 1019 | |
e2530083 JB |
1020 | /* |
1021 | * We use the number of queues for feature tests (QoS, HT) internally | |
1022 | * so restrict them appropriately. | |
1023 | */ | |
e2530083 JB |
1024 | if (hw->queues > IEEE80211_MAX_QUEUES) |
1025 | hw->queues = IEEE80211_MAX_QUEUES; | |
e2530083 | 1026 | |
42935eca | 1027 | local->workqueue = |
d8537548 | 1028 | alloc_ordered_workqueue("%s", 0, wiphy_name(local->hw.wiphy)); |
42935eca | 1029 | if (!local->workqueue) { |
f0706e82 JB |
1030 | result = -ENOMEM; |
1031 | goto fail_workqueue; | |
1032 | } | |
1033 | ||
b306f453 JB |
1034 | /* |
1035 | * The hardware needs headroom for sending the frame, | |
1036 | * and we need some headroom for passing the frame to monitor | |
1037 | * interfaces, but never both at the same time. | |
1038 | */ | |
33ccad35 | 1039 | local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom, |
a2fe8166 | 1040 | IEEE80211_TX_STATUS_HEADROOM); |
b306f453 | 1041 | |
e9f207f0 JB |
1042 | debugfs_hw_add(local); |
1043 | ||
b446918b HS |
1044 | /* |
1045 | * if the driver doesn't specify a max listen interval we | |
1046 | * use 5 which should be a safe default | |
1047 | */ | |
ea95bba4 | 1048 | if (local->hw.max_listen_interval == 0) |
b446918b | 1049 | local->hw.max_listen_interval = 5; |
ea95bba4 TW |
1050 | |
1051 | local->hw.conf.listen_interval = local->hw.max_listen_interval; | |
1052 | ||
ff616381 | 1053 | local->dynamic_ps_forced_timeout = -1; |
195e294d | 1054 | |
ba8c3d6f FF |
1055 | if (!local->hw.txq_ac_max_pending) |
1056 | local->hw.txq_ac_max_pending = 64; | |
1057 | ||
d4c4a9a1 | 1058 | result = ieee80211_wep_init(local); |
3473187d | 1059 | if (result < 0) |
0fb9a9ec JP |
1060 | wiphy_debug(local->hw.wiphy, "Failed to initialize wep: %d\n", |
1061 | result); | |
d4c4a9a1 | 1062 | |
24d47300 KB |
1063 | local->hw.conf.flags = IEEE80211_CONF_IDLE; |
1064 | ||
b57e6b56 MSS |
1065 | ieee80211_led_init(local); |
1066 | ||
f0706e82 | 1067 | rtnl_lock(); |
f0706e82 | 1068 | |
830f9038 JB |
1069 | result = ieee80211_init_rate_ctrl_alg(local, |
1070 | hw->rate_control_algorithm); | |
f0706e82 | 1071 | if (result < 0) { |
0fb9a9ec JP |
1072 | wiphy_debug(local->hw.wiphy, |
1073 | "Failed to initialize rate control algorithm\n"); | |
f0706e82 JB |
1074 | goto fail_rate; |
1075 | } | |
1076 | ||
8dffff21 | 1077 | /* add one default STA interface if supported */ |
e27513fb | 1078 | if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && |
30686bf7 | 1079 | !ieee80211_hw_check(hw, NO_AUTO_VIF)) { |
6bab2e19 | 1080 | result = ieee80211_if_add(local, "wlan%d", NET_NAME_ENUM, NULL, |
8dffff21 JB |
1081 | NL80211_IFTYPE_STATION, NULL); |
1082 | if (result) | |
0fb9a9ec JP |
1083 | wiphy_warn(local->hw.wiphy, |
1084 | "Failed to add default virtual iface\n"); | |
8dffff21 | 1085 | } |
f0706e82 | 1086 | |
f0706e82 JB |
1087 | rtnl_unlock(); |
1088 | ||
26b36cfe | 1089 | #ifdef CONFIG_INET |
2b2c009e JO |
1090 | local->ifa_notifier.notifier_call = ieee80211_ifa_changed; |
1091 | result = register_inetaddr_notifier(&local->ifa_notifier); | |
1092 | if (result) | |
1093 | goto fail_ifa; | |
26b36cfe | 1094 | #endif |
2b2c009e | 1095 | |
a65240c1 JB |
1096 | #if IS_ENABLED(CONFIG_IPV6) |
1097 | local->ifa6_notifier.notifier_call = ieee80211_ifa6_changed; | |
1098 | result = register_inet6addr_notifier(&local->ifa6_notifier); | |
1099 | if (result) | |
1100 | goto fail_ifa6; | |
1101 | #endif | |
1102 | ||
f0706e82 JB |
1103 | return 0; |
1104 | ||
a65240c1 JB |
1105 | #if IS_ENABLED(CONFIG_IPV6) |
1106 | fail_ifa6: | |
93c08c32 | 1107 | #ifdef CONFIG_INET |
a65240c1 JB |
1108 | unregister_inetaddr_notifier(&local->ifa_notifier); |
1109 | #endif | |
1110 | #endif | |
1111 | #if defined(CONFIG_INET) || defined(CONFIG_IPV6) | |
2b2c009e | 1112 | fail_ifa: |
93c08c32 | 1113 | #endif |
54330bf6 JB |
1114 | rtnl_lock(); |
1115 | rate_control_deinitialize(local); | |
10f644a4 | 1116 | ieee80211_remove_interfaces(local); |
10f644a4 | 1117 | fail_rate: |
f0706e82 | 1118 | rtnl_unlock(); |
54330bf6 | 1119 | ieee80211_led_exit(local); |
d4c4a9a1 | 1120 | ieee80211_wep_free(local); |
42935eca | 1121 | destroy_workqueue(local->workqueue); |
10f644a4 | 1122 | fail_workqueue: |
f0706e82 | 1123 | wiphy_unregister(local->hw.wiphy); |
10f644a4 | 1124 | fail_wiphy_register: |
3ffc2a90 JB |
1125 | if (local->wiphy_ciphers_allocated) |
1126 | kfree(local->hw.wiphy->cipher_suites); | |
11ba964d | 1127 | kfree(local->int_scan_req); |
f0706e82 JB |
1128 | return result; |
1129 | } | |
1130 | EXPORT_SYMBOL(ieee80211_register_hw); | |
1131 | ||
f0706e82 JB |
1132 | void ieee80211_unregister_hw(struct ieee80211_hw *hw) |
1133 | { | |
1134 | struct ieee80211_local *local = hw_to_local(hw); | |
f0706e82 JB |
1135 | |
1136 | tasklet_kill(&local->tx_pending_tasklet); | |
1137 | tasklet_kill(&local->tasklet); | |
1138 | ||
26b36cfe | 1139 | #ifdef CONFIG_INET |
2b2c009e | 1140 | unregister_inetaddr_notifier(&local->ifa_notifier); |
26b36cfe | 1141 | #endif |
a65240c1 JB |
1142 | #if IS_ENABLED(CONFIG_IPV6) |
1143 | unregister_inet6addr_notifier(&local->ifa6_notifier); | |
1144 | #endif | |
10f644a4 | 1145 | |
f0706e82 JB |
1146 | rtnl_lock(); |
1147 | ||
79010420 JB |
1148 | /* |
1149 | * At this point, interface list manipulations are fine | |
1150 | * because the driver cannot be handing us frames any | |
1151 | * more and the tasklet is killed. | |
1152 | */ | |
75636525 | 1153 | ieee80211_remove_interfaces(local); |
5b2812e9 | 1154 | |
f0706e82 JB |
1155 | rtnl_unlock(); |
1156 | ||
aaa016cc | 1157 | cancel_delayed_work_sync(&local->roc_work); |
258086a4 | 1158 | cancel_work_sync(&local->restart_work); |
3ac64bee | 1159 | cancel_work_sync(&local->reconfig_filter); |
c8ff71e6 | 1160 | cancel_work_sync(&local->tdls_chsw_work); |
18db594a | 1161 | flush_work(&local->sched_scan_stopped_work); |
3ac64bee | 1162 | |
f0706e82 | 1163 | ieee80211_clear_tx_pending(local); |
f0706e82 JB |
1164 | rate_control_deinitialize(local); |
1165 | ||
f64f9e71 JP |
1166 | if (skb_queue_len(&local->skb_queue) || |
1167 | skb_queue_len(&local->skb_queue_unreliable)) | |
0fb9a9ec | 1168 | wiphy_warn(local->hw.wiphy, "skb_queue not empty\n"); |
f0706e82 JB |
1169 | skb_queue_purge(&local->skb_queue); |
1170 | skb_queue_purge(&local->skb_queue_unreliable); | |
c8ff71e6 | 1171 | skb_queue_purge(&local->skb_queue_tdls_chsw); |
f0706e82 | 1172 | |
42935eca | 1173 | destroy_workqueue(local->workqueue); |
f0706e82 JB |
1174 | wiphy_unregister(local->hw.wiphy); |
1175 | ieee80211_wep_free(local); | |
1176 | ieee80211_led_exit(local); | |
5ba63533 | 1177 | kfree(local->int_scan_req); |
f0706e82 JB |
1178 | } |
1179 | EXPORT_SYMBOL(ieee80211_unregister_hw); | |
1180 | ||
a729cff8 JB |
1181 | static int ieee80211_free_ack_frame(int id, void *p, void *data) |
1182 | { | |
1183 | WARN_ONCE(1, "Have pending ack frames!\n"); | |
1184 | kfree_skb(p); | |
1185 | return 0; | |
1186 | } | |
1187 | ||
f0706e82 JB |
1188 | void ieee80211_free_hw(struct ieee80211_hw *hw) |
1189 | { | |
1190 | struct ieee80211_local *local = hw_to_local(hw); | |
1191 | ||
c771c9d8 | 1192 | mutex_destroy(&local->iflist_mtx); |
a1699b75 | 1193 | mutex_destroy(&local->mtx); |
c771c9d8 | 1194 | |
3ffc2a90 JB |
1195 | if (local->wiphy_ciphers_allocated) |
1196 | kfree(local->hw.wiphy->cipher_suites); | |
1197 | ||
a729cff8 JB |
1198 | idr_for_each(&local->ack_status_frames, |
1199 | ieee80211_free_ack_frame, NULL); | |
1200 | idr_destroy(&local->ack_status_frames); | |
1201 | ||
54330bf6 JB |
1202 | sta_info_stop(local); |
1203 | ||
8d5c2585 JB |
1204 | ieee80211_free_led_names(local); |
1205 | ||
f0706e82 JB |
1206 | wiphy_free(local->hw.wiphy); |
1207 | } | |
1208 | EXPORT_SYMBOL(ieee80211_free_hw); | |
1209 | ||
f0706e82 JB |
1210 | static int __init ieee80211_init(void) |
1211 | { | |
1212 | struct sk_buff *skb; | |
1213 | int ret; | |
1214 | ||
e039fa4a JB |
1215 | BUILD_BUG_ON(sizeof(struct ieee80211_tx_info) > sizeof(skb->cb)); |
1216 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, driver_data) + | |
c6a1fa12 | 1217 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE > sizeof(skb->cb)); |
f0706e82 | 1218 | |
cccf129f FF |
1219 | ret = rc80211_minstrel_init(); |
1220 | if (ret) | |
1221 | return ret; | |
1222 | ||
ec8aa669 FF |
1223 | ret = rc80211_minstrel_ht_init(); |
1224 | if (ret) | |
1225 | goto err_minstrel; | |
1226 | ||
47846c9b JB |
1227 | ret = ieee80211_iface_init(); |
1228 | if (ret) | |
1229 | goto err_netdev; | |
e9f207f0 | 1230 | |
f0706e82 | 1231 | return 0; |
47846c9b | 1232 | err_netdev: |
ec8aa669 FF |
1233 | rc80211_minstrel_ht_exit(); |
1234 | err_minstrel: | |
47846c9b JB |
1235 | rc80211_minstrel_exit(); |
1236 | ||
1237 | return ret; | |
f0706e82 JB |
1238 | } |
1239 | ||
f0706e82 JB |
1240 | static void __exit ieee80211_exit(void) |
1241 | { | |
ec8aa669 | 1242 | rc80211_minstrel_ht_exit(); |
cccf129f | 1243 | rc80211_minstrel_exit(); |
ac71c691 | 1244 | |
bf7cd94d | 1245 | ieee80211s_stop(); |
902acc78 | 1246 | |
47846c9b | 1247 | ieee80211_iface_exit(); |
d07c7cf4 JB |
1248 | |
1249 | rcu_barrier(); | |
f0706e82 JB |
1250 | } |
1251 | ||
1252 | ||
ca9938fe | 1253 | subsys_initcall(ieee80211_init); |
f0706e82 JB |
1254 | module_exit(ieee80211_exit); |
1255 | ||
1256 | MODULE_DESCRIPTION("IEEE 802.11 subsystem"); | |
1257 | MODULE_LICENSE("GPL"); |