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cfg80211: add remain-on-channel command
[net-next-2.6.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
08645126 4 * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
55682965
JB		 10#include <linux/list.h>
11#include <linux/if_ether.h>
12#include <linux/ieee80211.h>
13#include <linux/nl80211.h>
14#include <linux/rtnetlink.h>
15#include <linux/netlink.h>
2a519311 16#include <linux/etherdevice.h>
463d0183 17#include <net/net_namespace.h>
55682965
JB		 18#include <net/genetlink.h>
19#include <net/cfg80211.h>
463d0183 20#include <net/sock.h>
55682965
JB		 21#include "core.h"
22#include "nl80211.h"
b2e1b302 23#include "reg.h"
55682965
JB		 24
25/* the netlink family */
26static struct genl_family nl80211_fam = {
27 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
28 .name = "nl80211", /* have users key off the name instead */
29 .hdrsize = 0, /* no private header */
30 .version = 1, /* no particular meaning now */
31 .maxattr = NL80211_ATTR_MAX,
463d0183 32 .netnsok = true,
55682965
JB		 33};
34
79c97e97 35/* internal helper: get rdev and dev */
463d0183 36static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 37 struct cfg80211_registered_device **rdev,
55682965
JB		 38 struct net_device **dev)
39{
463d0183 40 struct nlattr **attrs = info->attrs;
55682965
JB		 41 int ifindex;
42
bba95fef 43 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 44 return -EINVAL;
45
bba95fef 46 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 47 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 48 if (!*dev)
49 return -ENODEV;
50
463d0183 51 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 52 if (IS_ERR(*rdev)) {
55682965 53 dev_put(*dev);
79c97e97 54 return PTR_ERR(*rdev);
55682965
JB		 55 }
56
57 return 0;
58}
59
60/* policy for the attributes */
61static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
62 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 64 .len = 20-1 },
31888487 65 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 66 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 67 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 68 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
69 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
70 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
55682965
JB		 72
73 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
74 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
75 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 76
77 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 78 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 79
b9454e83 80 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 81 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
82 .len = WLAN_MAX_KEY_LEN },
83 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
84 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
85 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 86 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
ed1b6cc7
JB		 87
88 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
89 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
90 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
91 .len = IEEE80211_MAX_DATA_LEN },
92 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
93 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 94 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
95 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
96 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
97 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
98 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 99 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 100 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 101 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 102 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_MESH_ID_LEN },
104 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 105
b2e1b302
LR		 106 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
107 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
108
9f1ba906
JM		 109 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
110 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
111 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 112 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
36aedc90 114
93da9cc1 115 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
116
36aedc90
JM		 117 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
118 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 119
120 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
121 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
122 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 123 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
124 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 125
126 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
127 .len = IEEE80211_MAX_SSID_LEN },
128 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
129 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 130 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 131 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 132 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 133 [NL80211_ATTR_STA_FLAGS2] = {
134 .len = sizeof(struct nl80211_sta_flag_update),
135 },
3f77316c 136 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
b23aa676
SO		 137 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
138 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
139 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 140 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 141 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 142 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
143 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 144 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
145 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
55682965
JB		 146};
147
b9454e83
JB		 148/* policy for the attributes */
149static struct nla_policy
150nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = {
fffd0934 151 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 152 [NL80211_KEY_IDX] = { .type = NLA_U8 },
153 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
154 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
155 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
156 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
157};
158
a043897a
HS		 159/* ifidx get helper */
160static int nl80211_get_ifidx(struct netlink_callback *cb)
161{
162 int res;
163
164 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
165 nl80211_fam.attrbuf, nl80211_fam.maxattr,
166 nl80211_policy);
167 if (res)
168 return res;
169
170 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
171 return -EINVAL;
172
173 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
174 if (!res)
175 return -EINVAL;
176 return res;
177}
178
f4a11bb0
JB		 179/* IE validation */
180static bool is_valid_ie_attr(const struct nlattr *attr)
181{
182 const u8 *pos;
183 int len;
184
185 if (!attr)
186 return true;
187
188 pos = nla_data(attr);
189 len = nla_len(attr);
190
191 while (len) {
192 u8 elemlen;
193
194 if (len < 2)
195 return false;
196 len -= 2;
197
198 elemlen = pos[1];
199 if (elemlen > len)
200 return false;
201
202 len -= elemlen;
203 pos += 2 + elemlen;
204 }
205
206 return true;
207}
208
55682965
JB		 209/* message building helper */
210static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
211 int flags, u8 cmd)
212{
213 /* since there is no private header just add the generic one */
214 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
215}
216
5dab3b8a
LR		 217static int nl80211_msg_put_channel(struct sk_buff *msg,
218 struct ieee80211_channel *chan)
219{
220 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
221 chan->center_freq);
222
223 if (chan->flags & IEEE80211_CHAN_DISABLED)
224 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
225 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
226 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
227 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
228 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
229 if (chan->flags & IEEE80211_CHAN_RADAR)
230 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
231
232 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
233 DBM_TO_MBM(chan->max_power));
234
235 return 0;
236
237 nla_put_failure:
238 return -ENOBUFS;
239}
240
55682965
JB		 241/* netlink command implementations */
242
b9454e83
JB		 243struct key_parse {
244 struct key_params p;
245 int idx;
246 bool def, defmgmt;
247};
248
249static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
250{
251 struct nlattr *tb[NL80211_KEY_MAX + 1];
252 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
253 nl80211_key_policy);
254 if (err)
255 return err;
256
257 k->def = !!tb[NL80211_KEY_DEFAULT];
258 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
259
260 if (tb[NL80211_KEY_IDX])
261 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
262
263 if (tb[NL80211_KEY_DATA]) {
264 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
265 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
266 }
267
268 if (tb[NL80211_KEY_SEQ]) {
269 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
270 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
271 }
272
273 if (tb[NL80211_KEY_CIPHER])
274 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
275
276 return 0;
277}
278
279static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
280{
281 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
282 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
283 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
284 }
285
286 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
287 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
288 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
289 }
290
291 if (info->attrs[NL80211_ATTR_KEY_IDX])
292 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
293
294 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
295 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
296
297 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
298 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
299
300 return 0;
301}
302
303static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
304{
305 int err;
306
307 memset(k, 0, sizeof(*k));
308 k->idx = -1;
309
310 if (info->attrs[NL80211_ATTR_KEY])
311 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
312 else
313 err = nl80211_parse_key_old(info, k);
314
315 if (err)
316 return err;
317
318 if (k->def && k->defmgmt)
319 return -EINVAL;
320
321 if (k->idx != -1) {
322 if (k->defmgmt) {
323 if (k->idx < 4 || k->idx > 5)
324 return -EINVAL;
325 } else if (k->def) {
326 if (k->idx < 0 || k->idx > 3)
327 return -EINVAL;
328 } else {
329 if (k->idx < 0 || k->idx > 5)
330 return -EINVAL;
331 }
332 }
333
334 return 0;
335}
336
fffd0934
JB		 337static struct cfg80211_cached_keys *
338nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
339 struct nlattr *keys)
340{
341 struct key_parse parse;
342 struct nlattr *key;
343 struct cfg80211_cached_keys *result;
344 int rem, err, def = 0;
345
346 result = kzalloc(sizeof(*result), GFP_KERNEL);
347 if (!result)
348 return ERR_PTR(-ENOMEM);
349
350 result->def = -1;
351 result->defmgmt = -1;
352
353 nla_for_each_nested(key, keys, rem) {
354 memset(&parse, 0, sizeof(parse));
355 parse.idx = -1;
356
357 err = nl80211_parse_key_new(key, &parse);
358 if (err)
359 goto error;
360 err = -EINVAL;
361 if (!parse.p.key)
362 goto error;
363 if (parse.idx < 0 || parse.idx > 4)
364 goto error;
365 if (parse.def) {
366 if (def)
367 goto error;
368 def = 1;
369 result->def = parse.idx;
370 } else if (parse.defmgmt)
371 goto error;
372 err = cfg80211_validate_key_settings(rdev, &parse.p,
373 parse.idx, NULL);
374 if (err)
375 goto error;
376 result->params[parse.idx].cipher = parse.p.cipher;
377 result->params[parse.idx].key_len = parse.p.key_len;
378 result->params[parse.idx].key = result->data[parse.idx];
379 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
380 }
381
382 return result;
383 error:
384 kfree(result);
385 return ERR_PTR(err);
386}
387
388static int nl80211_key_allowed(struct wireless_dev *wdev)
389{
390 ASSERT_WDEV_LOCK(wdev);
391
392 if (!netif_running(wdev->netdev))
393 return -ENETDOWN;
394
395 switch (wdev->iftype) {
396 case NL80211_IFTYPE_AP:
397 case NL80211_IFTYPE_AP_VLAN:
398 break;
399 case NL80211_IFTYPE_ADHOC:
400 if (!wdev->current_bss)
401 return -ENOLINK;
402 break;
403 case NL80211_IFTYPE_STATION:
404 if (wdev->sme_state != CFG80211_SME_CONNECTED)
405 return -ENOLINK;
406 break;
407 default:
408 return -EINVAL;
409 }
410
411 return 0;
412}
413
55682965
JB		 414static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
415 struct cfg80211_registered_device *dev)
416{
417 void *hdr;
ee688b00
JB		 418 struct nlattr *nl_bands, *nl_band;
419 struct nlattr *nl_freqs, *nl_freq;
420 struct nlattr *nl_rates, *nl_rate;
f59ac048 421 struct nlattr *nl_modes;
8fdc621d 422 struct nlattr *nl_cmds;
ee688b00
JB		 423 enum ieee80211_band band;
424 struct ieee80211_channel *chan;
425 struct ieee80211_rate *rate;
426 int i;
f59ac048 427 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 428
429 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
430 if (!hdr)
431 return -1;
432
b5850a7a 433 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 434 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 435
f5ea9120
JB		 436 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
437 cfg80211_rdev_list_generation);
438
b9a5f8ca
JM		 439 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
440 dev->wiphy.retry_short);
441 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
442 dev->wiphy.retry_long);
443 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
444 dev->wiphy.frag_threshold);
445 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
446 dev->wiphy.rts_threshold);
447
2a519311
JB		 448 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
449 dev->wiphy.max_scan_ssids);
18a83659
JB		 450 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
451 dev->wiphy.max_scan_ie_len);
ee688b00 452
25e47c18
JB		 453 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
454 sizeof(u32) * dev->wiphy.n_cipher_suites,
455 dev->wiphy.cipher_suites);
456
67fbb16b
SO		 457 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
458 dev->wiphy.max_num_pmkids);
459
f59ac048
LR		 460 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
461 if (!nl_modes)
462 goto nla_put_failure;
463
464 i = 0;
465 while (ifmodes) {
466 if (ifmodes & 1)
467 NLA_PUT_FLAG(msg, i);
468 ifmodes >>= 1;
469 i++;
470 }
471
472 nla_nest_end(msg, nl_modes);
473
ee688b00
JB		 474 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
475 if (!nl_bands)
476 goto nla_put_failure;
477
478 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
479 if (!dev->wiphy.bands[band])
480 continue;
481
482 nl_band = nla_nest_start(msg, band);
483 if (!nl_band)
484 goto nla_put_failure;
485
d51626df
JB		 486 /* add HT info */
487 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
488 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
489 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
490 &dev->wiphy.bands[band]->ht_cap.mcs);
491 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
492 dev->wiphy.bands[band]->ht_cap.cap);
493 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
494 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
495 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
496 dev->wiphy.bands[band]->ht_cap.ampdu_density);
497 }
498
ee688b00
JB		 499 /* add frequencies */
500 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
501 if (!nl_freqs)
502 goto nla_put_failure;
503
504 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
505 nl_freq = nla_nest_start(msg, i);
506 if (!nl_freq)
507 goto nla_put_failure;
508
509 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 510
511 if (nl80211_msg_put_channel(msg, chan))
512 goto nla_put_failure;
e2f367f2 513
ee688b00
JB		 514 nla_nest_end(msg, nl_freq);
515 }
516
517 nla_nest_end(msg, nl_freqs);
518
519 /* add bitrates */
520 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
521 if (!nl_rates)
522 goto nla_put_failure;
523
524 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
525 nl_rate = nla_nest_start(msg, i);
526 if (!nl_rate)
527 goto nla_put_failure;
528
529 rate = &dev->wiphy.bands[band]->bitrates[i];
530 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
531 rate->bitrate);
532 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
533 NLA_PUT_FLAG(msg,
534 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
535
536 nla_nest_end(msg, nl_rate);
537 }
538
539 nla_nest_end(msg, nl_rates);
540
541 nla_nest_end(msg, nl_band);
542 }
543 nla_nest_end(msg, nl_bands);
544
8fdc621d
JB		 545 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
546 if (!nl_cmds)
547 goto nla_put_failure;
548
549 i = 0;
550#define CMD(op, n) \
551 do { \
552 if (dev->ops->op) { \
553 i++; \
554 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
555 } \
556 } while (0)
557
558 CMD(add_virtual_intf, NEW_INTERFACE);
559 CMD(change_virtual_intf, SET_INTERFACE);
560 CMD(add_key, NEW_KEY);
561 CMD(add_beacon, NEW_BEACON);
562 CMD(add_station, NEW_STATION);
563 CMD(add_mpath, NEW_MPATH);
564 CMD(set_mesh_params, SET_MESH_PARAMS);
565 CMD(change_bss, SET_BSS);
636a5d36
JM		 566 CMD(auth, AUTHENTICATE);
567 CMD(assoc, ASSOCIATE);
568 CMD(deauth, DEAUTHENTICATE);
569 CMD(disassoc, DISASSOCIATE);
04a773ad 570 CMD(join_ibss, JOIN_IBSS);
67fbb16b
SO		 571 CMD(set_pmksa, SET_PMKSA);
572 CMD(del_pmksa, DEL_PMKSA);
573 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 574 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
5be83de5 575 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 576 i++;
577 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
578 }
8fdc621d
JB		 579
580#undef CMD
b23aa676 581
6829c878 582 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 583 i++;
584 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
585 }
586
6829c878 587 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 588 i++;
589 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
590 }
591
8fdc621d
JB		 592 nla_nest_end(msg, nl_cmds);
593
55682965
JB		 594 return genlmsg_end(msg, hdr);
595
596 nla_put_failure:
bc3ed28c
TG		 597 genlmsg_cancel(msg, hdr);
598 return -EMSGSIZE;
55682965
JB		 599}
600
601static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
602{
603 int idx = 0;
604 int start = cb->args[0];
605 struct cfg80211_registered_device *dev;
606
a1794390 607 mutex_lock(&cfg80211_mutex);
79c97e97 608 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 609 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
610 continue;
b4637271 611 if (++idx <= start)
55682965
JB		 612 continue;
613 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
614 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 615 dev) < 0) {
616 idx--;
55682965 617 break;
b4637271 618 }
55682965 619 }
a1794390 620 mutex_unlock(&cfg80211_mutex);
55682965
JB		 621
622 cb->args[0] = idx;
623
624 return skb->len;
625}
626
627static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
628{
629 struct sk_buff *msg;
630 struct cfg80211_registered_device *dev;
631
632 dev = cfg80211_get_dev_from_info(info);
633 if (IS_ERR(dev))
634 return PTR_ERR(dev);
635
fd2120ca 636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 637 if (!msg)
638 goto out_err;
639
640 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
641 goto out_free;
642
4d0c8aea 643 cfg80211_unlock_rdev(dev);
55682965 644
134e6375 645 return genlmsg_reply(msg, info);
55682965
JB		 646
647 out_free:
648 nlmsg_free(msg);
649 out_err:
4d0c8aea 650 cfg80211_unlock_rdev(dev);
55682965
JB		 651 return -ENOBUFS;
652}
653
31888487
JM		 654static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
655 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
656 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
657 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
658 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
659 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
660};
661
662static int parse_txq_params(struct nlattr *tb[],
663 struct ieee80211_txq_params *txq_params)
664{
665 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
666 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
667 !tb[NL80211_TXQ_ATTR_AIFS])
668 return -EINVAL;
669
670 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
671 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
672 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
673 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
674 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
675
676 return 0;
677}
678
55682965
JB		 679static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
680{
681 struct cfg80211_registered_device *rdev;
31888487
JM		 682 int result = 0, rem_txq_params = 0;
683 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 684 u32 changed;
685 u8 retry_short = 0, retry_long = 0;
686 u32 frag_threshold = 0, rts_threshold = 0;
55682965 687
4bbf4d56 688 rtnl_lock();
55682965 689
4bbf4d56
JB		 690 mutex_lock(&cfg80211_mutex);
691
79c97e97 692 rdev = __cfg80211_rdev_from_info(info);
4bbf4d56 693 if (IS_ERR(rdev)) {
1f5fc70a 694 mutex_unlock(&cfg80211_mutex);
4bbf4d56
JB		 695 result = PTR_ERR(rdev);
696 goto unlock;
697 }
698
699 mutex_lock(&rdev->mtx);
700
701 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 702 result = cfg80211_dev_rename(
703 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 704
705 mutex_unlock(&cfg80211_mutex);
706
707 if (result)
708 goto bad_res;
31888487
JM		 709
710 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
711 struct ieee80211_txq_params txq_params;
712 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
713
714 if (!rdev->ops->set_txq_params) {
715 result = -EOPNOTSUPP;
716 goto bad_res;
717 }
718
719 nla_for_each_nested(nl_txq_params,
720 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
721 rem_txq_params) {
722 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
723 nla_data(nl_txq_params),
724 nla_len(nl_txq_params),
725 txq_params_policy);
726 result = parse_txq_params(tb, &txq_params);
727 if (result)
728 goto bad_res;
729
730 result = rdev->ops->set_txq_params(&rdev->wiphy,
731 &txq_params);
732 if (result)
733 goto bad_res;
734 }
735 }
55682965 736
72bdcf34 737 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
094d05dc 738 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
294196ab 739 u32 freq;
72bdcf34 740
306d6112
JB		 741 result = -EINVAL;
742
094d05dc
S		 743 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
744 channel_type = nla_get_u32(info->attrs[
745 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
746 if (channel_type != NL80211_CHAN_NO_HT &&
747 channel_type != NL80211_CHAN_HT20 &&
748 channel_type != NL80211_CHAN_HT40PLUS &&
749 channel_type != NL80211_CHAN_HT40MINUS)
72bdcf34 750 goto bad_res;
72bdcf34
JM		 751 }
752
753 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
306d6112 754
59bbb6f7 755 mutex_lock(&rdev->devlist_mtx);
4b181144 756 result = rdev_set_freq(rdev, NULL, freq, channel_type);
59bbb6f7 757 mutex_unlock(&rdev->devlist_mtx);
72bdcf34
JM		 758 if (result)
759 goto bad_res;
760 }
761
b9a5f8ca
JM		 762 changed = 0;
763
764 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
765 retry_short = nla_get_u8(
766 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
767 if (retry_short == 0) {
768 result = -EINVAL;
769 goto bad_res;
770 }
771 changed |= WIPHY_PARAM_RETRY_SHORT;
772 }
773
774 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
775 retry_long = nla_get_u8(
776 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
777 if (retry_long == 0) {
778 result = -EINVAL;
779 goto bad_res;
780 }
781 changed |= WIPHY_PARAM_RETRY_LONG;
782 }
783
784 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
785 frag_threshold = nla_get_u32(
786 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
787 if (frag_threshold < 256) {
788 result = -EINVAL;
789 goto bad_res;
790 }
791 if (frag_threshold != (u32) -1) {
792 /*
793 * Fragments (apart from the last one) are required to
794 * have even length. Make the fragmentation code
795 * simpler by stripping LSB should someone try to use
796 * odd threshold value.
797 */
798 frag_threshold &= ~0x1;
799 }
800 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
801 }
802
803 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
804 rts_threshold = nla_get_u32(
805 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
806 changed |= WIPHY_PARAM_RTS_THRESHOLD;
807 }
808
809 if (changed) {
810 u8 old_retry_short, old_retry_long;
811 u32 old_frag_threshold, old_rts_threshold;
812
813 if (!rdev->ops->set_wiphy_params) {
814 result = -EOPNOTSUPP;
815 goto bad_res;
816 }
817
818 old_retry_short = rdev->wiphy.retry_short;
819 old_retry_long = rdev->wiphy.retry_long;
820 old_frag_threshold = rdev->wiphy.frag_threshold;
821 old_rts_threshold = rdev->wiphy.rts_threshold;
822
823 if (changed & WIPHY_PARAM_RETRY_SHORT)
824 rdev->wiphy.retry_short = retry_short;
825 if (changed & WIPHY_PARAM_RETRY_LONG)
826 rdev->wiphy.retry_long = retry_long;
827 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
828 rdev->wiphy.frag_threshold = frag_threshold;
829 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
830 rdev->wiphy.rts_threshold = rts_threshold;
831
832 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
833 if (result) {
834 rdev->wiphy.retry_short = old_retry_short;
835 rdev->wiphy.retry_long = old_retry_long;
836 rdev->wiphy.frag_threshold = old_frag_threshold;
837 rdev->wiphy.rts_threshold = old_rts_threshold;
838 }
839 }
72bdcf34 840
306d6112 841 bad_res:
4bbf4d56
JB		 842 mutex_unlock(&rdev->mtx);
843 unlock:
844 rtnl_unlock();
55682965
JB		 845 return result;
846}
847
848
849static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 850 struct cfg80211_registered_device *rdev,
55682965
JB		 851 struct net_device *dev)
852{
853 void *hdr;
854
855 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
856 if (!hdr)
857 return -1;
858
859 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 860 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 861 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 862 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 863
864 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
865 rdev->devlist_generation ^
866 (cfg80211_rdev_list_generation << 2));
867
55682965
JB		 868 return genlmsg_end(msg, hdr);
869
870 nla_put_failure:
bc3ed28c
TG		 871 genlmsg_cancel(msg, hdr);
872 return -EMSGSIZE;
55682965
JB		 873}
874
875static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
876{
877 int wp_idx = 0;
878 int if_idx = 0;
879 int wp_start = cb->args[0];
880 int if_start = cb->args[1];
f5ea9120 881 struct cfg80211_registered_device *rdev;
55682965
JB		 882 struct wireless_dev *wdev;
883
a1794390 884 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 885 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
886 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 887 continue;
bba95fef
JB		 888 if (wp_idx < wp_start) {
889 wp_idx++;
55682965 890 continue;
bba95fef 891 }
55682965
JB		 892 if_idx = 0;
893
f5ea9120
JB		 894 mutex_lock(&rdev->devlist_mtx);
895 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 896 if (if_idx < if_start) {
897 if_idx++;
55682965 898 continue;
bba95fef 899 }
55682965
JB		 900 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
901 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 902 rdev, wdev->netdev) < 0) {
903 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 904 goto out;
905 }
906 if_idx++;
55682965 907 }
f5ea9120 908 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 909
910 wp_idx++;
55682965 911 }
bba95fef 912 out:
a1794390 913 mutex_unlock(&cfg80211_mutex);
55682965
JB		 914
915 cb->args[0] = wp_idx;
916 cb->args[1] = if_idx;
917
918 return skb->len;
919}
920
921static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
922{
923 struct sk_buff *msg;
924 struct cfg80211_registered_device *dev;
925 struct net_device *netdev;
926 int err;
927
463d0183 928 err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
55682965
JB		 929 if (err)
930 return err;
931
fd2120ca 932 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 933 if (!msg)
934 goto out_err;
935
d726405a
JB		 936 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
937 dev, netdev) < 0)
55682965
JB		 938 goto out_free;
939
940 dev_put(netdev);
4d0c8aea 941 cfg80211_unlock_rdev(dev);
55682965 942
134e6375 943 return genlmsg_reply(msg, info);
55682965
JB		 944
945 out_free:
946 nlmsg_free(msg);
947 out_err:
948 dev_put(netdev);
4d0c8aea 949 cfg80211_unlock_rdev(dev);
55682965
JB		 950 return -ENOBUFS;
951}
952
66f7ac50
MW		 953static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
954 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
955 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
956 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
957 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
958 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
959};
960
961static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
962{
963 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
964 int flag;
965
966 *mntrflags = 0;
967
968 if (!nla)
969 return -EINVAL;
970
971 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
972 nla, mntr_flags_policy))
973 return -EINVAL;
974
975 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
976 if (flags[flag])
977 *mntrflags |= (1<<flag);
978
979 return 0;
980}
981
9bc383de 982static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 983 struct net_device *netdev, u8 use_4addr,
984 enum nl80211_iftype iftype)
9bc383de 985{
ad4bb6f8
JB		 986 if (!use_4addr) {
987 if (netdev && netdev->br_port)
988 return -EBUSY;
9bc383de 989 return 0;
ad4bb6f8 990 }
9bc383de
JB		 991
992 switch (iftype) {
993 case NL80211_IFTYPE_AP_VLAN:
994 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
995 return 0;
996 break;
997 case NL80211_IFTYPE_STATION:
998 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
999 return 0;
1000 break;
1001 default:
1002 break;
1003 }
1004
1005 return -EOPNOTSUPP;
1006}
1007
55682965
JB		 1008static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1009{
79c97e97 1010 struct cfg80211_registered_device *rdev;
2ec600d6 1011 struct vif_params params;
e36d56b6 1012 int err;
04a773ad 1013 enum nl80211_iftype otype, ntype;
55682965 1014 struct net_device *dev;
92ffe055 1015 u32 _flags, *flags = NULL;
ac7f9cfa 1016 bool change = false;
55682965 1017
2ec600d6
LCC		 1018 memset(&params, 0, sizeof(params));
1019
3b85875a
JB		 1020 rtnl_lock();
1021
463d0183 1022 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
55682965 1023 if (err)
3b85875a
JB		 1024 goto unlock_rtnl;
1025
04a773ad 1026 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1027
723b038d 1028 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1029 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1030 if (otype != ntype)
ac7f9cfa 1031 change = true;
04a773ad 1032 if (ntype > NL80211_IFTYPE_MAX) {
ac7f9cfa 1033 err = -EINVAL;
723b038d 1034 goto unlock;
ac7f9cfa 1035 }
723b038d
JB		 1036 }
1037
92ffe055 1038 if (info->attrs[NL80211_ATTR_MESH_ID]) {
04a773ad 1039 if (ntype != NL80211_IFTYPE_MESH_POINT) {
92ffe055
JB		 1040 err = -EINVAL;
1041 goto unlock;
1042 }
2ec600d6
LCC		 1043 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1044 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 1045 change = true;
2ec600d6
LCC		 1046 }
1047
8b787643
FF		 1048 if (info->attrs[NL80211_ATTR_4ADDR]) {
1049 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1050 change = true;
ad4bb6f8 1051 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de
JB		 1052 if (err)
1053 goto unlock;
8b787643
FF		 1054 } else {
1055 params.use_4addr = -1;
1056 }
1057
92ffe055 1058 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
04a773ad 1059 if (ntype != NL80211_IFTYPE_MONITOR) {
92ffe055
JB		 1060 err = -EINVAL;
1061 goto unlock;
1062 }
1063 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1064 &_flags);
ac7f9cfa
JB		 1065 if (err)
1066 goto unlock;
1067
1068 flags = &_flags;
1069 change = true;
92ffe055 1070 }
3b85875a 1071
ac7f9cfa 1072 if (change)
3d54d255 1073 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1074 else
1075 err = 0;
60719ffd 1076
9bc383de
JB		 1077 if (!err && params.use_4addr != -1)
1078 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1079
55682965 1080 unlock:
e36d56b6 1081 dev_put(dev);
79c97e97 1082 cfg80211_unlock_rdev(rdev);
3b85875a
JB		 1083 unlock_rtnl:
1084 rtnl_unlock();
55682965
JB		 1085 return err;
1086}
1087
1088static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1089{
79c97e97 1090 struct cfg80211_registered_device *rdev;
2ec600d6 1091 struct vif_params params;
55682965
JB		 1092 int err;
1093 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1094 u32 flags;
55682965 1095
2ec600d6
LCC		 1096 memset(&params, 0, sizeof(params));
1097
55682965
JB		 1098 if (!info->attrs[NL80211_ATTR_IFNAME])
1099 return -EINVAL;
1100
1101 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1102 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1103 if (type > NL80211_IFTYPE_MAX)
1104 return -EINVAL;
1105 }
1106
3b85875a
JB		 1107 rtnl_lock();
1108
79c97e97
JB		 1109 rdev = cfg80211_get_dev_from_info(info);
1110 if (IS_ERR(rdev)) {
1111 err = PTR_ERR(rdev);
3b85875a
JB		 1112 goto unlock_rtnl;
1113 }
55682965 1114
79c97e97
JB		 1115 if (!rdev->ops->add_virtual_intf ||
1116 !(rdev->wiphy.interface_modes & (1 << type))) {
55682965
JB		 1117 err = -EOPNOTSUPP;
1118 goto unlock;
1119 }
1120
2ec600d6
LCC		 1121 if (type == NL80211_IFTYPE_MESH_POINT &&
1122 info->attrs[NL80211_ATTR_MESH_ID]) {
1123 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1124 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1125 }
1126
9bc383de 1127 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1128 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1129 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de
JB		 1130 if (err)
1131 goto unlock;
1132 }
8b787643 1133
66f7ac50
MW		 1134 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1135 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1136 &flags);
79c97e97 1137 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1138 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1139 type, err ? NULL : &flags, &params);
2ec600d6 1140
55682965 1141 unlock:
79c97e97 1142 cfg80211_unlock_rdev(rdev);
3b85875a
JB		 1143 unlock_rtnl:
1144 rtnl_unlock();
55682965
JB		 1145 return err;
1146}
1147
1148static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1149{
79c97e97 1150 struct cfg80211_registered_device *rdev;
463d0183 1151 int err;
55682965
JB		 1152 struct net_device *dev;
1153
3b85875a
JB		 1154 rtnl_lock();
1155
463d0183 1156 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
55682965 1157 if (err)
3b85875a 1158 goto unlock_rtnl;
55682965 1159
79c97e97 1160 if (!rdev->ops->del_virtual_intf) {
55682965
JB		 1161 err = -EOPNOTSUPP;
1162 goto out;
1163 }
1164
463d0183 1165 err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1166
1167 out:
79c97e97 1168 cfg80211_unlock_rdev(rdev);
463d0183 1169 dev_put(dev);
3b85875a
JB		 1170 unlock_rtnl:
1171 rtnl_unlock();
55682965
JB		 1172 return err;
1173}
1174
41ade00f
JB		 1175struct get_key_cookie {
1176 struct sk_buff *msg;
1177 int error;
b9454e83 1178 int idx;
41ade00f
JB		 1179};
1180
1181static void get_key_callback(void *c, struct key_params *params)
1182{
b9454e83 1183 struct nlattr *key;
41ade00f
JB		 1184 struct get_key_cookie *cookie = c;
1185
1186 if (params->key)
1187 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1188 params->key_len, params->key);
1189
1190 if (params->seq)
1191 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1192 params->seq_len, params->seq);
1193
1194 if (params->cipher)
1195 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1196 params->cipher);
1197
b9454e83
JB		 1198 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1199 if (!key)
1200 goto nla_put_failure;
1201
1202 if (params->key)
1203 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1204 params->key_len, params->key);
1205
1206 if (params->seq)
1207 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1208 params->seq_len, params->seq);
1209
1210 if (params->cipher)
1211 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1212 params->cipher);
1213
1214 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1215
1216 nla_nest_end(cookie->msg, key);
1217
41ade00f
JB		 1218 return;
1219 nla_put_failure:
1220 cookie->error = 1;
1221}
1222
1223static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1224{
79c97e97 1225 struct cfg80211_registered_device *rdev;
41ade00f
JB		 1226 int err;
1227 struct net_device *dev;
1228 u8 key_idx = 0;
1229 u8 *mac_addr = NULL;
1230 struct get_key_cookie cookie = {
1231 .error = 0,
1232 };
1233 void *hdr;
1234 struct sk_buff *msg;
1235
1236 if (info->attrs[NL80211_ATTR_KEY_IDX])
1237 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1238
3cfcf6ac 1239 if (key_idx > 5)
41ade00f
JB		 1240 return -EINVAL;
1241
1242 if (info->attrs[NL80211_ATTR_MAC])
1243 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1244
3b85875a
JB		 1245 rtnl_lock();
1246
463d0183 1247 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1248 if (err)
3b85875a 1249 goto unlock_rtnl;
41ade00f 1250
79c97e97 1251 if (!rdev->ops->get_key) {
41ade00f
JB		 1252 err = -EOPNOTSUPP;
1253 goto out;
1254 }
1255
fd2120ca 1256 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
41ade00f
JB		 1257 if (!msg) {
1258 err = -ENOMEM;
1259 goto out;
1260 }
1261
1262 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1263 NL80211_CMD_NEW_KEY);
1264
1265 if (IS_ERR(hdr)) {
1266 err = PTR_ERR(hdr);
6c95e2a2 1267 goto free_msg;
41ade00f
JB		 1268 }
1269
1270 cookie.msg = msg;
b9454e83 1271 cookie.idx = key_idx;
41ade00f
JB		 1272
1273 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1274 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1275 if (mac_addr)
1276 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1277
79c97e97 1278 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
41ade00f 1279 &cookie, get_key_callback);
41ade00f
JB		 1280
1281 if (err)
6c95e2a2 1282 goto free_msg;
41ade00f
JB		 1283
1284 if (cookie.error)
1285 goto nla_put_failure;
1286
1287 genlmsg_end(msg, hdr);
134e6375 1288 err = genlmsg_reply(msg, info);
41ade00f
JB		 1289 goto out;
1290
1291 nla_put_failure:
1292 err = -ENOBUFS;
6c95e2a2 1293 free_msg:
41ade00f
JB		 1294 nlmsg_free(msg);
1295 out:
79c97e97 1296 cfg80211_unlock_rdev(rdev);
41ade00f 1297 dev_put(dev);
3b85875a
JB		 1298 unlock_rtnl:
1299 rtnl_unlock();
1300
41ade00f
JB		 1301 return err;
1302}
1303
1304static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1305{
79c97e97 1306 struct cfg80211_registered_device *rdev;
b9454e83 1307 struct key_parse key;
41ade00f
JB		 1308 int err;
1309 struct net_device *dev;
3cfcf6ac
JM		 1310 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1311 u8 key_index);
41ade00f 1312
b9454e83
JB		 1313 err = nl80211_parse_key(info, &key);
1314 if (err)
1315 return err;
41ade00f 1316
b9454e83 1317 if (key.idx < 0)
41ade00f
JB		 1318 return -EINVAL;
1319
b9454e83
JB		 1320 /* only support setting default key */
1321 if (!key.def && !key.defmgmt)
41ade00f
JB		 1322 return -EINVAL;
1323
3b85875a
JB		 1324 rtnl_lock();
1325
463d0183 1326 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1327 if (err)
3b85875a 1328 goto unlock_rtnl;
41ade00f 1329
b9454e83 1330 if (key.def)
79c97e97 1331 func = rdev->ops->set_default_key;
3cfcf6ac 1332 else
79c97e97 1333 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac
JM		 1334
1335 if (!func) {
41ade00f
JB		 1336 err = -EOPNOTSUPP;
1337 goto out;
1338 }
1339
fffd0934
JB		 1340 wdev_lock(dev->ieee80211_ptr);
1341 err = nl80211_key_allowed(dev->ieee80211_ptr);
1342 if (!err)
1343 err = func(&rdev->wiphy, dev, key.idx);
1344
3d23e349 1345#ifdef CONFIG_CFG80211_WEXT
08645126 1346 if (!err) {
79c97e97 1347 if (func == rdev->ops->set_default_key)
b9454e83 1348 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1349 else
b9454e83 1350 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1351 }
1352#endif
fffd0934 1353 wdev_unlock(dev->ieee80211_ptr);
41ade00f
JB		 1354
1355 out:
79c97e97 1356 cfg80211_unlock_rdev(rdev);
41ade00f 1357 dev_put(dev);
3b85875a
JB		 1358
1359 unlock_rtnl:
1360 rtnl_unlock();
1361
41ade00f
JB		 1362 return err;
1363}
1364
1365static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1366{
79c97e97 1367 struct cfg80211_registered_device *rdev;
fffd0934 1368 int err;
41ade00f 1369 struct net_device *dev;
b9454e83 1370 struct key_parse key;
41ade00f
JB		 1371 u8 *mac_addr = NULL;
1372
b9454e83
JB		 1373 err = nl80211_parse_key(info, &key);
1374 if (err)
1375 return err;
41ade00f 1376
b9454e83 1377 if (!key.p.key)
41ade00f
JB		 1378 return -EINVAL;
1379
41ade00f
JB		 1380 if (info->attrs[NL80211_ATTR_MAC])
1381 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1382
3b85875a
JB		 1383 rtnl_lock();
1384
463d0183 1385 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1386 if (err)
3b85875a 1387 goto unlock_rtnl;
41ade00f 1388
fffd0934
JB		 1389 if (!rdev->ops->add_key) {
1390 err = -EOPNOTSUPP;
25e47c18
JB		 1391 goto out;
1392 }
1393
fffd0934
JB		 1394 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1395 err = -EINVAL;
41ade00f
JB		 1396 goto out;
1397 }
1398
fffd0934
JB		 1399 wdev_lock(dev->ieee80211_ptr);
1400 err = nl80211_key_allowed(dev->ieee80211_ptr);
1401 if (!err)
1402 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1403 mac_addr, &key.p);
1404 wdev_unlock(dev->ieee80211_ptr);
41ade00f
JB		 1405
1406 out:
79c97e97 1407 cfg80211_unlock_rdev(rdev);
41ade00f 1408 dev_put(dev);
3b85875a
JB		 1409 unlock_rtnl:
1410 rtnl_unlock();
1411
41ade00f
JB		 1412 return err;
1413}
1414
1415static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1416{
79c97e97 1417 struct cfg80211_registered_device *rdev;
41ade00f
JB		 1418 int err;
1419 struct net_device *dev;
41ade00f 1420 u8 *mac_addr = NULL;
b9454e83 1421 struct key_parse key;
41ade00f 1422
b9454e83
JB		 1423 err = nl80211_parse_key(info, &key);
1424 if (err)
1425 return err;
41ade00f
JB		 1426
1427 if (info->attrs[NL80211_ATTR_MAC])
1428 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1429
3b85875a
JB		 1430 rtnl_lock();
1431
463d0183 1432 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1433 if (err)
3b85875a 1434 goto unlock_rtnl;
41ade00f 1435
79c97e97 1436 if (!rdev->ops->del_key) {
41ade00f
JB		 1437 err = -EOPNOTSUPP;
1438 goto out;
1439 }
1440
fffd0934
JB		 1441 wdev_lock(dev->ieee80211_ptr);
1442 err = nl80211_key_allowed(dev->ieee80211_ptr);
1443 if (!err)
1444 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
41ade00f 1445
3d23e349 1446#ifdef CONFIG_CFG80211_WEXT
08645126 1447 if (!err) {
b9454e83 1448 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1449 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1450 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1451 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1452 }
1453#endif
fffd0934 1454 wdev_unlock(dev->ieee80211_ptr);
08645126 1455
41ade00f 1456 out:
79c97e97 1457 cfg80211_unlock_rdev(rdev);
41ade00f 1458 dev_put(dev);
3b85875a
JB		 1459
1460 unlock_rtnl:
1461 rtnl_unlock();
1462
41ade00f
JB		 1463 return err;
1464}
1465
ed1b6cc7
JB		 1466static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1467{
1468 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1469 struct beacon_parameters *info);
79c97e97 1470 struct cfg80211_registered_device *rdev;
ed1b6cc7
JB		 1471 int err;
1472 struct net_device *dev;
1473 struct beacon_parameters params;
1474 int haveinfo = 0;
1475
f4a11bb0
JB		 1476 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1477 return -EINVAL;
1478
3b85875a
JB		 1479 rtnl_lock();
1480
463d0183 1481 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
ed1b6cc7 1482 if (err)
3b85875a 1483 goto unlock_rtnl;
ed1b6cc7 1484
eec60b03
JM		 1485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1486 err = -EOPNOTSUPP;
1487 goto out;
1488 }
1489
ed1b6cc7
JB		 1490 switch (info->genlhdr->cmd) {
1491 case NL80211_CMD_NEW_BEACON:
1492 /* these are required for NEW_BEACON */
1493 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1494 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1495 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1496 err = -EINVAL;
1497 goto out;
1498 }
1499
79c97e97 1500 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1501 break;
1502 case NL80211_CMD_SET_BEACON:
79c97e97 1503 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1504 break;
1505 default:
1506 WARN_ON(1);
1507 err = -EOPNOTSUPP;
1508 goto out;
1509 }
1510
1511 if (!call) {
1512 err = -EOPNOTSUPP;
1513 goto out;
1514 }
1515
1516 memset(&params, 0, sizeof(params));
1517
1518 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1519 params.interval =
1520 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1521 haveinfo = 1;
1522 }
1523
1524 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1525 params.dtim_period =
1526 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1527 haveinfo = 1;
1528 }
1529
1530 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1531 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1532 params.head_len =
1533 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1534 haveinfo = 1;
1535 }
1536
1537 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1538 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1539 params.tail_len =
1540 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1541 haveinfo = 1;
1542 }
1543
1544 if (!haveinfo) {
1545 err = -EINVAL;
1546 goto out;
1547 }
1548
79c97e97 1549 err = call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1550
1551 out:
79c97e97 1552 cfg80211_unlock_rdev(rdev);
ed1b6cc7 1553 dev_put(dev);
3b85875a
JB		 1554 unlock_rtnl:
1555 rtnl_unlock();
1556
ed1b6cc7
JB		 1557 return err;
1558}
1559
1560static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1561{
79c97e97 1562 struct cfg80211_registered_device *rdev;
ed1b6cc7
JB		 1563 int err;
1564 struct net_device *dev;
1565
3b85875a
JB		 1566 rtnl_lock();
1567
463d0183 1568 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
ed1b6cc7 1569 if (err)
3b85875a 1570 goto unlock_rtnl;
ed1b6cc7 1571
79c97e97 1572 if (!rdev->ops->del_beacon) {
ed1b6cc7
JB		 1573 err = -EOPNOTSUPP;
1574 goto out;
1575 }
1576
eec60b03
JM		 1577 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1578 err = -EOPNOTSUPP;
1579 goto out;
1580 }
79c97e97 1581 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1582
1583 out:
79c97e97 1584 cfg80211_unlock_rdev(rdev);
ed1b6cc7 1585 dev_put(dev);
3b85875a
JB		 1586 unlock_rtnl:
1587 rtnl_unlock();
1588
ed1b6cc7
JB		 1589 return err;
1590}
1591
5727ef1b
JB		 1592static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1593 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1594 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1595 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1596 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1597};
1598
eccb8e8f
JB		 1599static int parse_station_flags(struct genl_info *info,
1600 struct station_parameters *params)
5727ef1b
JB		 1601{
1602 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1603 struct nlattr *nla;
5727ef1b
JB		 1604 int flag;
1605
eccb8e8f
JB		 1606 /*
1607 * Try parsing the new attribute first so userspace
1608 * can specify both for older kernels.
1609 */
1610 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1611 if (nla) {
1612 struct nl80211_sta_flag_update *sta_flags;
1613
1614 sta_flags = nla_data(nla);
1615 params->sta_flags_mask = sta_flags->mask;
1616 params->sta_flags_set = sta_flags->set;
1617 if ((params->sta_flags_mask |
1618 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1619 return -EINVAL;
1620 return 0;
1621 }
1622
1623 /* if present, parse the old attribute */
5727ef1b 1624
eccb8e8f 1625 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1626 if (!nla)
1627 return 0;
1628
1629 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1630 nla, sta_flags_policy))
1631 return -EINVAL;
1632
eccb8e8f
JB		 1633 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1634 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1635
1636 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1637 if (flags[flag])
eccb8e8f 1638 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1639
1640 return 0;
1641}
1642
fd5b74dc
JB		 1643static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1644 int flags, struct net_device *dev,
2ec600d6 1645 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1646{
1647 void *hdr;
420e7fab
HR		 1648 struct nlattr *sinfoattr, *txrate;
1649 u16 bitrate;
fd5b74dc
JB		 1650
1651 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1652 if (!hdr)
1653 return -1;
1654
1655 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1656 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1657
f5ea9120
JB		 1658 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1659
2ec600d6
LCC		 1660 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1661 if (!sinfoattr)
fd5b74dc 1662 goto nla_put_failure;
2ec600d6
LCC		 1663 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1664 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1665 sinfo->inactive_time);
1666 if (sinfo->filled & STATION_INFO_RX_BYTES)
1667 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1668 sinfo->rx_bytes);
1669 if (sinfo->filled & STATION_INFO_TX_BYTES)
1670 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1671 sinfo->tx_bytes);
1672 if (sinfo->filled & STATION_INFO_LLID)
1673 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1674 sinfo->llid);
1675 if (sinfo->filled & STATION_INFO_PLID)
1676 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1677 sinfo->plid);
1678 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1679 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1680 sinfo->plink_state);
420e7fab
HR		 1681 if (sinfo->filled & STATION_INFO_SIGNAL)
1682 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1683 sinfo->signal);
1684 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1685 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1686 if (!txrate)
1687 goto nla_put_failure;
1688
254416aa
JL		 1689 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1690 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1691 if (bitrate > 0)
1692 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1693
420e7fab
HR		 1694 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1695 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1696 sinfo->txrate.mcs);
1697 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1698 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1699 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1700 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1701
1702 nla_nest_end(msg, txrate);
1703 }
98c8a60a
JM		 1704 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1705 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1706 sinfo->rx_packets);
1707 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1708 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1709 sinfo->tx_packets);
2ec600d6 1710 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1711
1712 return genlmsg_end(msg, hdr);
1713
1714 nla_put_failure:
bc3ed28c
TG		 1715 genlmsg_cancel(msg, hdr);
1716 return -EMSGSIZE;
fd5b74dc
JB		 1717}
1718
2ec600d6 1719static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1720 struct netlink_callback *cb)
2ec600d6 1721{
2ec600d6
LCC		 1722 struct station_info sinfo;
1723 struct cfg80211_registered_device *dev;
bba95fef 1724 struct net_device *netdev;
2ec600d6 1725 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 1726 int ifidx = cb->args[0];
1727 int sta_idx = cb->args[1];
2ec600d6 1728 int err;
2ec600d6 1729
a043897a
HS		 1730 if (!ifidx)
1731 ifidx = nl80211_get_ifidx(cb);
1732 if (ifidx < 0)
1733 return ifidx;
2ec600d6 1734
3b85875a
JB		 1735 rtnl_lock();
1736
463d0183 1737 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3b85875a
JB		 1738 if (!netdev) {
1739 err = -ENODEV;
1740 goto out_rtnl;
1741 }
2ec600d6 1742
463d0183 1743 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
bba95fef
JB		 1744 if (IS_ERR(dev)) {
1745 err = PTR_ERR(dev);
3b85875a 1746 goto out_rtnl;
bba95fef
JB		 1747 }
1748
1749 if (!dev->ops->dump_station) {
eec60b03 1750 err = -EOPNOTSUPP;
bba95fef
JB		 1751 goto out_err;
1752 }
1753
bba95fef
JB		 1754 while (1) {
1755 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1756 mac_addr, &sinfo);
1757 if (err == -ENOENT)
1758 break;
1759 if (err)
3b85875a 1760 goto out_err;
bba95fef
JB		 1761
1762 if (nl80211_send_station(skb,
1763 NETLINK_CB(cb->skb).pid,
1764 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1765 netdev, mac_addr,
1766 &sinfo) < 0)
1767 goto out;
1768
1769 sta_idx++;
1770 }
1771
1772
1773 out:
1774 cb->args[1] = sta_idx;
1775 err = skb->len;
bba95fef 1776 out_err:
4d0c8aea 1777 cfg80211_unlock_rdev(dev);
3b85875a
JB		 1778 out_rtnl:
1779 rtnl_unlock();
bba95fef
JB		 1780
1781 return err;
2ec600d6 1782}
fd5b74dc 1783
5727ef1b
JB		 1784static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1785{
79c97e97 1786 struct cfg80211_registered_device *rdev;
fd5b74dc
JB		 1787 int err;
1788 struct net_device *dev;
2ec600d6 1789 struct station_info sinfo;
fd5b74dc
JB		 1790 struct sk_buff *msg;
1791 u8 *mac_addr = NULL;
1792
2ec600d6 1793 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1794
1795 if (!info->attrs[NL80211_ATTR_MAC])
1796 return -EINVAL;
1797
1798 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1799
3b85875a
JB		 1800 rtnl_lock();
1801
463d0183 1802 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
fd5b74dc 1803 if (err)
3b85875a 1804 goto out_rtnl;
fd5b74dc 1805
79c97e97 1806 if (!rdev->ops->get_station) {
fd5b74dc
JB		 1807 err = -EOPNOTSUPP;
1808 goto out;
1809 }
1810
79c97e97 1811 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2ec600d6
LCC		 1812 if (err)
1813 goto out;
1814
fd2120ca 1815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc
JB		 1816 if (!msg)
1817 goto out;
1818
1819 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1820 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1821 goto out_free;
1822
134e6375 1823 err = genlmsg_reply(msg, info);
fd5b74dc
JB		 1824 goto out;
1825
1826 out_free:
1827 nlmsg_free(msg);
fd5b74dc 1828 out:
79c97e97 1829 cfg80211_unlock_rdev(rdev);
fd5b74dc 1830 dev_put(dev);
3b85875a
JB		 1831 out_rtnl:
1832 rtnl_unlock();
1833
fd5b74dc 1834 return err;
5727ef1b
JB		 1835}
1836
1837/*
c258d2de 1838 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 1839 */
463d0183 1840static int get_vlan(struct genl_info *info,
5727ef1b
JB		 1841 struct cfg80211_registered_device *rdev,
1842 struct net_device **vlan)
1843{
463d0183 1844 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 1845 *vlan = NULL;
1846
1847 if (vlanattr) {
463d0183
JB		 1848 *vlan = dev_get_by_index(genl_info_net(info),
1849 nla_get_u32(vlanattr));
5727ef1b
JB		 1850 if (!*vlan)
1851 return -ENODEV;
1852 if (!(*vlan)->ieee80211_ptr)
1853 return -EINVAL;
1854 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1855 return -EINVAL;
c258d2de
FF		 1856 if (!netif_running(*vlan))
1857 return -ENETDOWN;
5727ef1b
JB		 1858 }
1859 return 0;
1860}
1861
1862static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1863{
79c97e97 1864 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 1865 int err;
1866 struct net_device *dev;
1867 struct station_parameters params;
1868 u8 *mac_addr = NULL;
1869
1870 memset(&params, 0, sizeof(params));
1871
1872 params.listen_interval = -1;
1873
1874 if (info->attrs[NL80211_ATTR_STA_AID])
1875 return -EINVAL;
1876
1877 if (!info->attrs[NL80211_ATTR_MAC])
1878 return -EINVAL;
1879
1880 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1881
1882 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1883 params.supported_rates =
1884 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1885 params.supported_rates_len =
1886 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1887 }
1888
1889 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1890 params.listen_interval =
1891 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1892
36aedc90
JM		 1893 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1894 params.ht_capa =
1895 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1896
eccb8e8f 1897 if (parse_station_flags(info, &params))
5727ef1b
JB		 1898 return -EINVAL;
1899
2ec600d6
LCC		 1900 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1901 params.plink_action =
1902 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1903
3b85875a
JB		 1904 rtnl_lock();
1905
463d0183 1906 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 1907 if (err)
3b85875a 1908 goto out_rtnl;
5727ef1b 1909
463d0183 1910 err = get_vlan(info, rdev, &params.vlan);
a97f4424 1911 if (err)
034d655e 1912 goto out;
a97f4424
JB		 1913
1914 /* validate settings */
1915 err = 0;
1916
1917 switch (dev->ieee80211_ptr->iftype) {
1918 case NL80211_IFTYPE_AP:
1919 case NL80211_IFTYPE_AP_VLAN:
1920 /* disallow mesh-specific things */
1921 if (params.plink_action)
1922 err = -EINVAL;
1923 break;
1924 case NL80211_IFTYPE_STATION:
1925 /* disallow everything but AUTHORIZED flag */
1926 if (params.plink_action)
1927 err = -EINVAL;
1928 if (params.vlan)
1929 err = -EINVAL;
1930 if (params.supported_rates)
1931 err = -EINVAL;
1932 if (params.ht_capa)
1933 err = -EINVAL;
1934 if (params.listen_interval >= 0)
1935 err = -EINVAL;
1936 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1937 err = -EINVAL;
1938 break;
1939 case NL80211_IFTYPE_MESH_POINT:
1940 /* disallow things mesh doesn't support */
1941 if (params.vlan)
1942 err = -EINVAL;
1943 if (params.ht_capa)
1944 err = -EINVAL;
1945 if (params.listen_interval >= 0)
1946 err = -EINVAL;
1947 if (params.supported_rates)
1948 err = -EINVAL;
1949 if (params.sta_flags_mask)
1950 err = -EINVAL;
1951 break;
1952 default:
1953 err = -EINVAL;
034d655e
JB		 1954 }
1955
5727ef1b
JB		 1956 if (err)
1957 goto out;
1958
79c97e97 1959 if (!rdev->ops->change_station) {
5727ef1b
JB		 1960 err = -EOPNOTSUPP;
1961 goto out;
1962 }
1963
79c97e97 1964 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 1965
1966 out:
1967 if (params.vlan)
1968 dev_put(params.vlan);
79c97e97 1969 cfg80211_unlock_rdev(rdev);
5727ef1b 1970 dev_put(dev);
3b85875a
JB		 1971 out_rtnl:
1972 rtnl_unlock();
1973
5727ef1b
JB		 1974 return err;
1975}
1976
1977static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1978{
79c97e97 1979 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 1980 int err;
1981 struct net_device *dev;
1982 struct station_parameters params;
1983 u8 *mac_addr = NULL;
1984
1985 memset(&params, 0, sizeof(params));
1986
1987 if (!info->attrs[NL80211_ATTR_MAC])
1988 return -EINVAL;
1989
5727ef1b
JB		 1990 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1991 return -EINVAL;
1992
1993 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1994 return -EINVAL;
1995
1996 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1997 params.supported_rates =
1998 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1999 params.supported_rates_len =
2000 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2001 params.listen_interval =
2002 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2003
a97f4424
JB		 2004 if (info->attrs[NL80211_ATTR_STA_AID]) {
2005 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2006 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2007 return -EINVAL;
2008 }
51b50fbe 2009
36aedc90
JM		 2010 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2011 params.ht_capa =
2012 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2013
eccb8e8f 2014 if (parse_station_flags(info, &params))
5727ef1b
JB		 2015 return -EINVAL;
2016
3b85875a
JB		 2017 rtnl_lock();
2018
463d0183 2019 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 2020 if (err)
3b85875a 2021 goto out_rtnl;
5727ef1b 2022
463d0183 2023 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2024 if (err)
e80cf853 2025 goto out;
a97f4424
JB		 2026
2027 /* validate settings */
2028 err = 0;
2029
2030 switch (dev->ieee80211_ptr->iftype) {
2031 case NL80211_IFTYPE_AP:
2032 case NL80211_IFTYPE_AP_VLAN:
2033 /* all ok but must have AID */
2034 if (!params.aid)
2035 err = -EINVAL;
2036 break;
2037 case NL80211_IFTYPE_MESH_POINT:
2038 /* disallow things mesh doesn't support */
2039 if (params.vlan)
2040 err = -EINVAL;
2041 if (params.aid)
2042 err = -EINVAL;
2043 if (params.ht_capa)
2044 err = -EINVAL;
2045 if (params.listen_interval >= 0)
2046 err = -EINVAL;
2047 if (params.supported_rates)
2048 err = -EINVAL;
2049 if (params.sta_flags_mask)
2050 err = -EINVAL;
2051 break;
2052 default:
2053 err = -EINVAL;
e80cf853
JB		 2054 }
2055
5727ef1b
JB		 2056 if (err)
2057 goto out;
2058
79c97e97 2059 if (!rdev->ops->add_station) {
5727ef1b
JB		 2060 err = -EOPNOTSUPP;
2061 goto out;
2062 }
2063
35a8efe1
JM		 2064 if (!netif_running(dev)) {
2065 err = -ENETDOWN;
2066 goto out;
2067 }
2068
79c97e97 2069 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2070
2071 out:
2072 if (params.vlan)
2073 dev_put(params.vlan);
79c97e97 2074 cfg80211_unlock_rdev(rdev);
5727ef1b 2075 dev_put(dev);
3b85875a
JB		 2076 out_rtnl:
2077 rtnl_unlock();
2078
5727ef1b
JB		 2079 return err;
2080}
2081
2082static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2083{
79c97e97 2084 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 2085 int err;
2086 struct net_device *dev;
2087 u8 *mac_addr = NULL;
2088
2089 if (info->attrs[NL80211_ATTR_MAC])
2090 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2091
3b85875a
JB		 2092 rtnl_lock();
2093
463d0183 2094 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 2095 if (err)
3b85875a 2096 goto out_rtnl;
5727ef1b 2097
e80cf853 2098 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
155cc9e4
AY		 2099 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
2100 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
e80cf853
JB		 2101 err = -EINVAL;
2102 goto out;
2103 }
2104
79c97e97 2105 if (!rdev->ops->del_station) {
5727ef1b
JB		 2106 err = -EOPNOTSUPP;
2107 goto out;
2108 }
2109
79c97e97 2110 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2111
2112 out:
79c97e97 2113 cfg80211_unlock_rdev(rdev);
5727ef1b 2114 dev_put(dev);
3b85875a
JB		 2115 out_rtnl:
2116 rtnl_unlock();
2117
5727ef1b
JB		 2118 return err;
2119}
2120
2ec600d6
LCC		 2121static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2122 int flags, struct net_device *dev,
2123 u8 *dst, u8 *next_hop,
2124 struct mpath_info *pinfo)
2125{
2126 void *hdr;
2127 struct nlattr *pinfoattr;
2128
2129 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2130 if (!hdr)
2131 return -1;
2132
2133 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2134 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2135 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2136
f5ea9120
JB		 2137 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2138
2ec600d6
LCC		 2139 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2140 if (!pinfoattr)
2141 goto nla_put_failure;
2142 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2143 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2144 pinfo->frame_qlen);
d19b3bf6
RP		 2145 if (pinfo->filled & MPATH_INFO_SN)
2146 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2147 pinfo->sn);
2ec600d6
LCC		 2148 if (pinfo->filled & MPATH_INFO_METRIC)
2149 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2150 pinfo->metric);
2151 if (pinfo->filled & MPATH_INFO_EXPTIME)
2152 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2153 pinfo->exptime);
2154 if (pinfo->filled & MPATH_INFO_FLAGS)
2155 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2156 pinfo->flags);
2157 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2158 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2159 pinfo->discovery_timeout);
2160 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2161 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2162 pinfo->discovery_retries);
2163
2164 nla_nest_end(msg, pinfoattr);
2165
2166 return genlmsg_end(msg, hdr);
2167
2168 nla_put_failure:
bc3ed28c
TG		 2169 genlmsg_cancel(msg, hdr);
2170 return -EMSGSIZE;
2ec600d6
LCC		 2171}
2172
2173static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2174 struct netlink_callback *cb)
2ec600d6 2175{
2ec600d6
LCC		 2176 struct mpath_info pinfo;
2177 struct cfg80211_registered_device *dev;
bba95fef 2178 struct net_device *netdev;
2ec600d6
LCC		 2179 u8 dst[ETH_ALEN];
2180 u8 next_hop[ETH_ALEN];
bba95fef
JB		 2181 int ifidx = cb->args[0];
2182 int path_idx = cb->args[1];
2ec600d6 2183 int err;
2ec600d6 2184
a043897a
HS		 2185 if (!ifidx)
2186 ifidx = nl80211_get_ifidx(cb);
2187 if (ifidx < 0)
2188 return ifidx;
bba95fef 2189
3b85875a
JB		 2190 rtnl_lock();
2191
463d0183 2192 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3b85875a
JB		 2193 if (!netdev) {
2194 err = -ENODEV;
2195 goto out_rtnl;
2196 }
bba95fef 2197
463d0183 2198 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
bba95fef
JB		 2199 if (IS_ERR(dev)) {
2200 err = PTR_ERR(dev);
3b85875a 2201 goto out_rtnl;
bba95fef
JB		 2202 }
2203
2204 if (!dev->ops->dump_mpath) {
eec60b03 2205 err = -EOPNOTSUPP;
bba95fef
JB		 2206 goto out_err;
2207 }
2208
eec60b03
JM		 2209 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2210 err = -EOPNOTSUPP;
0448b5fc 2211 goto out_err;
eec60b03
JM		 2212 }
2213
bba95fef
JB		 2214 while (1) {
2215 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2216 dst, next_hop, &pinfo);
2217 if (err == -ENOENT)
2ec600d6 2218 break;
bba95fef 2219 if (err)
3b85875a 2220 goto out_err;
2ec600d6 2221
bba95fef
JB		 2222 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2223 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2224 netdev, dst, next_hop,
2225 &pinfo) < 0)
2226 goto out;
2ec600d6 2227
bba95fef 2228 path_idx++;
2ec600d6 2229 }
2ec600d6 2230
2ec600d6 2231
bba95fef
JB		 2232 out:
2233 cb->args[1] = path_idx;
2234 err = skb->len;
bba95fef 2235 out_err:
4d0c8aea 2236 cfg80211_unlock_rdev(dev);
3b85875a
JB		 2237 out_rtnl:
2238 rtnl_unlock();
bba95fef
JB		 2239
2240 return err;
2ec600d6
LCC		 2241}
2242
2243static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2244{
79c97e97 2245 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2246 int err;
2247 struct net_device *dev;
2248 struct mpath_info pinfo;
2249 struct sk_buff *msg;
2250 u8 *dst = NULL;
2251 u8 next_hop[ETH_ALEN];
2252
2253 memset(&pinfo, 0, sizeof(pinfo));
2254
2255 if (!info->attrs[NL80211_ATTR_MAC])
2256 return -EINVAL;
2257
2258 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2259
3b85875a
JB		 2260 rtnl_lock();
2261
463d0183 2262 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2263 if (err)
3b85875a 2264 goto out_rtnl;
2ec600d6 2265
79c97e97 2266 if (!rdev->ops->get_mpath) {
2ec600d6
LCC		 2267 err = -EOPNOTSUPP;
2268 goto out;
2269 }
2270
eec60b03
JM		 2271 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2272 err = -EOPNOTSUPP;
2273 goto out;
2274 }
2275
79c97e97 2276 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6
LCC		 2277 if (err)
2278 goto out;
2279
fd2120ca 2280 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6
LCC		 2281 if (!msg)
2282 goto out;
2283
2284 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2285 dev, dst, next_hop, &pinfo) < 0)
2286 goto out_free;
2287
134e6375 2288 err = genlmsg_reply(msg, info);
2ec600d6
LCC		 2289 goto out;
2290
2291 out_free:
2292 nlmsg_free(msg);
2ec600d6 2293 out:
79c97e97 2294 cfg80211_unlock_rdev(rdev);
2ec600d6 2295 dev_put(dev);
3b85875a
JB		 2296 out_rtnl:
2297 rtnl_unlock();
2298
2ec600d6
LCC		 2299 return err;
2300}
2301
2302static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2303{
79c97e97 2304 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2305 int err;
2306 struct net_device *dev;
2307 u8 *dst = NULL;
2308 u8 *next_hop = NULL;
2309
2310 if (!info->attrs[NL80211_ATTR_MAC])
2311 return -EINVAL;
2312
2313 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2314 return -EINVAL;
2315
2316 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2317 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2318
3b85875a
JB		 2319 rtnl_lock();
2320
463d0183 2321 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2322 if (err)
3b85875a 2323 goto out_rtnl;
2ec600d6 2324
79c97e97 2325 if (!rdev->ops->change_mpath) {
2ec600d6
LCC		 2326 err = -EOPNOTSUPP;
2327 goto out;
2328 }
2329
eec60b03
JM		 2330 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2331 err = -EOPNOTSUPP;
2332 goto out;
2333 }
2334
35a8efe1
JM		 2335 if (!netif_running(dev)) {
2336 err = -ENETDOWN;
2337 goto out;
2338 }
2339
79c97e97 2340 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2341
2342 out:
79c97e97 2343 cfg80211_unlock_rdev(rdev);
2ec600d6 2344 dev_put(dev);
3b85875a
JB		 2345 out_rtnl:
2346 rtnl_unlock();
2347
2ec600d6
LCC		 2348 return err;
2349}
2350static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2351{
79c97e97 2352 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2353 int err;
2354 struct net_device *dev;
2355 u8 *dst = NULL;
2356 u8 *next_hop = NULL;
2357
2358 if (!info->attrs[NL80211_ATTR_MAC])
2359 return -EINVAL;
2360
2361 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2362 return -EINVAL;
2363
2364 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2365 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2366
3b85875a
JB		 2367 rtnl_lock();
2368
463d0183 2369 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2370 if (err)
3b85875a 2371 goto out_rtnl;
2ec600d6 2372
79c97e97 2373 if (!rdev->ops->add_mpath) {
2ec600d6
LCC		 2374 err = -EOPNOTSUPP;
2375 goto out;
2376 }
2377
eec60b03
JM		 2378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2379 err = -EOPNOTSUPP;
2380 goto out;
2381 }
2382
35a8efe1
JM		 2383 if (!netif_running(dev)) {
2384 err = -ENETDOWN;
2385 goto out;
2386 }
2387
79c97e97 2388 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2389
2390 out:
79c97e97 2391 cfg80211_unlock_rdev(rdev);
2ec600d6 2392 dev_put(dev);
3b85875a
JB		 2393 out_rtnl:
2394 rtnl_unlock();
2395
2ec600d6
LCC		 2396 return err;
2397}
2398
2399static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2400{
79c97e97 2401 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2402 int err;
2403 struct net_device *dev;
2404 u8 *dst = NULL;
2405
2406 if (info->attrs[NL80211_ATTR_MAC])
2407 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2408
3b85875a
JB		 2409 rtnl_lock();
2410
463d0183 2411 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2412 if (err)
3b85875a 2413 goto out_rtnl;
2ec600d6 2414
79c97e97 2415 if (!rdev->ops->del_mpath) {
2ec600d6
LCC		 2416 err = -EOPNOTSUPP;
2417 goto out;
2418 }
2419
79c97e97 2420 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2421
2422 out:
79c97e97 2423 cfg80211_unlock_rdev(rdev);
2ec600d6 2424 dev_put(dev);
3b85875a
JB		 2425 out_rtnl:
2426 rtnl_unlock();
2427
2ec600d6
LCC		 2428 return err;
2429}
2430
9f1ba906
JM		 2431static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2432{
79c97e97 2433 struct cfg80211_registered_device *rdev;
9f1ba906
JM		 2434 int err;
2435 struct net_device *dev;
2436 struct bss_parameters params;
2437
2438 memset(&params, 0, sizeof(params));
2439 /* default to not changing parameters */
2440 params.use_cts_prot = -1;
2441 params.use_short_preamble = -1;
2442 params.use_short_slot_time = -1;
2443
2444 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2445 params.use_cts_prot =
2446 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2447 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2448 params.use_short_preamble =
2449 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2450 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2451 params.use_short_slot_time =
2452 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2453 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2454 params.basic_rates =
2455 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2456 params.basic_rates_len =
2457 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2458 }
9f1ba906 2459
3b85875a
JB		 2460 rtnl_lock();
2461
463d0183 2462 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
9f1ba906 2463 if (err)
3b85875a 2464 goto out_rtnl;
9f1ba906 2465
79c97e97 2466 if (!rdev->ops->change_bss) {
9f1ba906
JM		 2467 err = -EOPNOTSUPP;
2468 goto out;
2469 }
2470
eec60b03
JM		 2471 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2472 err = -EOPNOTSUPP;
2473 goto out;
2474 }
2475
79c97e97 2476 err = rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2477
2478 out:
79c97e97 2479 cfg80211_unlock_rdev(rdev);
9f1ba906 2480 dev_put(dev);
3b85875a
JB		 2481 out_rtnl:
2482 rtnl_unlock();
2483
9f1ba906
JM		 2484 return err;
2485}
2486
b2e1b302
LR		 2487static const struct nla_policy
2488 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2489 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2490 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2491 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2492 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2493 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2494 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2495};
2496
2497static int parse_reg_rule(struct nlattr *tb[],
2498 struct ieee80211_reg_rule *reg_rule)
2499{
2500 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2501 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2502
2503 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2504 return -EINVAL;
2505 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2506 return -EINVAL;
2507 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2508 return -EINVAL;
2509 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2510 return -EINVAL;
2511 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2512 return -EINVAL;
2513
2514 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2515
2516 freq_range->start_freq_khz =
2517 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2518 freq_range->end_freq_khz =
2519 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2520 freq_range->max_bandwidth_khz =
2521 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2522
2523 power_rule->max_eirp =
2524 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2525
2526 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2527 power_rule->max_antenna_gain =
2528 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2529
2530 return 0;
2531}
2532
2533static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2534{
2535 int r;
2536 char *data = NULL;
2537
80778f18
LR		 2538 /*
2539 * You should only get this when cfg80211 hasn't yet initialized
2540 * completely when built-in to the kernel right between the time
2541 * window between nl80211_init() and regulatory_init(), if that is
2542 * even possible.
2543 */
2544 mutex_lock(&cfg80211_mutex);
2545 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2546 mutex_unlock(&cfg80211_mutex);
2547 return -EINPROGRESS;
80778f18 2548 }
fe33eb39 2549 mutex_unlock(&cfg80211_mutex);
80778f18 2550
fe33eb39
LR		 2551 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2552 return -EINVAL;
b2e1b302
LR		 2553
2554 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2555
fe33eb39
LR		 2556 r = regulatory_hint_user(data);
2557
b2e1b302
LR		 2558 return r;
2559}
2560
93da9cc1 2561static int nl80211_get_mesh_params(struct sk_buff *skb,
2562 struct genl_info *info)
2563{
79c97e97 2564 struct cfg80211_registered_device *rdev;
93da9cc1 2565 struct mesh_config cur_params;
2566 int err;
2567 struct net_device *dev;
2568 void *hdr;
2569 struct nlattr *pinfoattr;
2570 struct sk_buff *msg;
2571
3b85875a
JB		 2572 rtnl_lock();
2573
93da9cc1 2574 /* Look up our device */
463d0183 2575 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
93da9cc1 2576 if (err)
3b85875a 2577 goto out_rtnl;
93da9cc1 2578
79c97e97 2579 if (!rdev->ops->get_mesh_params) {
f3f92586
JM		 2580 err = -EOPNOTSUPP;
2581 goto out;
2582 }
2583
93da9cc1 2584 /* Get the mesh params */
79c97e97 2585 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
93da9cc1 2586 if (err)
2587 goto out;
2588
2589 /* Draw up a netlink message to send back */
fd2120ca 2590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
93da9cc1 2591 if (!msg) {
2592 err = -ENOBUFS;
2593 goto out;
2594 }
2595 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2596 NL80211_CMD_GET_MESH_PARAMS);
2597 if (!hdr)
2598 goto nla_put_failure;
2599 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2600 if (!pinfoattr)
2601 goto nla_put_failure;
2602 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2603 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2604 cur_params.dot11MeshRetryTimeout);
2605 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2606 cur_params.dot11MeshConfirmTimeout);
2607 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2608 cur_params.dot11MeshHoldingTimeout);
2609 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2610 cur_params.dot11MeshMaxPeerLinks);
2611 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2612 cur_params.dot11MeshMaxRetries);
2613 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2614 cur_params.dot11MeshTTL);
2615 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2616 cur_params.auto_open_plinks);
2617 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2618 cur_params.dot11MeshHWMPmaxPREQretries);
2619 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2620 cur_params.path_refresh_time);
2621 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2622 cur_params.min_discovery_timeout);
2623 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2624 cur_params.dot11MeshHWMPactivePathTimeout);
2625 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2626 cur_params.dot11MeshHWMPpreqMinInterval);
2627 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2628 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2629 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2630 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2631 nla_nest_end(msg, pinfoattr);
2632 genlmsg_end(msg, hdr);
134e6375 2633 err = genlmsg_reply(msg, info);
93da9cc1 2634 goto out;
2635
3b85875a 2636 nla_put_failure:
93da9cc1 2637 genlmsg_cancel(msg, hdr);
2638 err = -EMSGSIZE;
3b85875a 2639 out:
93da9cc1 2640 /* Cleanup */
79c97e97 2641 cfg80211_unlock_rdev(rdev);
93da9cc1 2642 dev_put(dev);
3b85875a
JB		 2643 out_rtnl:
2644 rtnl_unlock();
2645
93da9cc1 2646 return err;
2647}
2648
2649#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2650do {\
2651 if (table[attr_num]) {\
2652 cfg.param = nla_fn(table[attr_num]); \
2653 mask |= (1 << (attr_num - 1)); \
2654 } \
2655} while (0);\
2656
2657static struct nla_policy
2658nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2659 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2660 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2661 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2662 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2663 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2664 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2665 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2666
2667 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2668 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2669 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2670 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2671 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2672 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2673};
2674
2675static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2676{
2677 int err;
2678 u32 mask;
79c97e97 2679 struct cfg80211_registered_device *rdev;
93da9cc1 2680 struct net_device *dev;
2681 struct mesh_config cfg;
2682 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2683 struct nlattr *parent_attr;
2684
2685 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2686 if (!parent_attr)
2687 return -EINVAL;
2688 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2689 parent_attr, nl80211_meshconf_params_policy))
2690 return -EINVAL;
2691
3b85875a
JB		 2692 rtnl_lock();
2693
463d0183 2694 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
93da9cc1 2695 if (err)
3b85875a 2696 goto out_rtnl;
93da9cc1 2697
79c97e97 2698 if (!rdev->ops->set_mesh_params) {
f3f92586
JM		 2699 err = -EOPNOTSUPP;
2700 goto out;
2701 }
2702
93da9cc1 2703 /* This makes sure that there aren't more than 32 mesh config
2704 * parameters (otherwise our bitfield scheme would not work.) */
2705 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2706
2707 /* Fill in the params struct */
2708 mask = 0;
2709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2710 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2712 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2714 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2716 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2718 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2720 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2722 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2723 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2724 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2725 nla_get_u8);
2726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2727 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2729 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2730 nla_get_u16);
2731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2732 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2733 nla_get_u32);
2734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2735 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2736 nla_get_u16);
2737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2738 dot11MeshHWMPnetDiameterTraversalTime,
2739 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2740 nla_get_u16);
63c5723b
RP		 2741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2742 dot11MeshHWMPRootMode, mask,
2743 NL80211_MESHCONF_HWMP_ROOTMODE,
2744 nla_get_u8);
93da9cc1 2745
2746 /* Apply changes */
79c97e97 2747 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2748
f3f92586 2749 out:
93da9cc1 2750 /* cleanup */
79c97e97 2751 cfg80211_unlock_rdev(rdev);
93da9cc1 2752 dev_put(dev);
3b85875a
JB		 2753 out_rtnl:
2754 rtnl_unlock();
2755
93da9cc1 2756 return err;
2757}
2758
2759#undef FILL_IN_MESH_PARAM_IF_SET
2760
f130347c
LR		 2761static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2762{
2763 struct sk_buff *msg;
2764 void *hdr = NULL;
2765 struct nlattr *nl_reg_rules;
2766 unsigned int i;
2767 int err = -EINVAL;
2768
a1794390 2769 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2770
2771 if (!cfg80211_regdomain)
2772 goto out;
2773
fd2120ca 2774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2775 if (!msg) {
2776 err = -ENOBUFS;
2777 goto out;
2778 }
2779
2780 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2781 NL80211_CMD_GET_REG);
2782 if (!hdr)
2783 goto nla_put_failure;
2784
2785 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2786 cfg80211_regdomain->alpha2);
2787
2788 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2789 if (!nl_reg_rules)
2790 goto nla_put_failure;
2791
2792 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2793 struct nlattr *nl_reg_rule;
2794 const struct ieee80211_reg_rule *reg_rule;
2795 const struct ieee80211_freq_range *freq_range;
2796 const struct ieee80211_power_rule *power_rule;
2797
2798 reg_rule = &cfg80211_regdomain->reg_rules[i];
2799 freq_range = &reg_rule->freq_range;
2800 power_rule = &reg_rule->power_rule;
2801
2802 nl_reg_rule = nla_nest_start(msg, i);
2803 if (!nl_reg_rule)
2804 goto nla_put_failure;
2805
2806 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2807 reg_rule->flags);
2808 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2809 freq_range->start_freq_khz);
2810 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2811 freq_range->end_freq_khz);
2812 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2813 freq_range->max_bandwidth_khz);
2814 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2815 power_rule->max_antenna_gain);
2816 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2817 power_rule->max_eirp);
2818
2819 nla_nest_end(msg, nl_reg_rule);
2820 }
2821
2822 nla_nest_end(msg, nl_reg_rules);
2823
2824 genlmsg_end(msg, hdr);
134e6375 2825 err = genlmsg_reply(msg, info);
f130347c
LR		 2826 goto out;
2827
2828nla_put_failure:
2829 genlmsg_cancel(msg, hdr);
2830 err = -EMSGSIZE;
2831out:
a1794390 2832 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2833 return err;
2834}
2835
b2e1b302
LR		 2836static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2837{
2838 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2839 struct nlattr *nl_reg_rule;
2840 char *alpha2 = NULL;
2841 int rem_reg_rules = 0, r = 0;
2842 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2843 struct ieee80211_regdomain *rd = NULL;
2844
2845 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2846 return -EINVAL;
2847
2848 if (!info->attrs[NL80211_ATTR_REG_RULES])
2849 return -EINVAL;
2850
2851 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2852
2853 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2854 rem_reg_rules) {
2855 num_rules++;
2856 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2857 return -EINVAL;
b2e1b302
LR		 2858 }
2859
61405e97
LR		 2860 mutex_lock(&cfg80211_mutex);
2861
d0e18f83
LR		 2862 if (!reg_is_valid_request(alpha2)) {
2863 r = -EINVAL;
2864 goto bad_reg;
2865 }
b2e1b302
LR		 2866
2867 size_of_regd = sizeof(struct ieee80211_regdomain) +
2868 (num_rules * sizeof(struct ieee80211_reg_rule));
2869
2870 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2871 if (!rd) {
2872 r = -ENOMEM;
2873 goto bad_reg;
2874 }
b2e1b302
LR		 2875
2876 rd->n_reg_rules = num_rules;
2877 rd->alpha2[0] = alpha2[0];
2878 rd->alpha2[1] = alpha2[1];
2879
2880 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2881 rem_reg_rules) {
2882 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2883 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2884 reg_rule_policy);
2885 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2886 if (r)
2887 goto bad_reg;
2888
2889 rule_idx++;
2890
d0e18f83
LR		 2891 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2892 r = -EINVAL;
b2e1b302 2893 goto bad_reg;
d0e18f83 2894 }
b2e1b302
LR		 2895 }
2896
2897 BUG_ON(rule_idx != num_rules);
2898
b2e1b302 2899 r = set_regdom(rd);
61405e97 2900
a1794390 2901 mutex_unlock(&cfg80211_mutex);
d0e18f83 2902
b2e1b302
LR		 2903 return r;
2904
d2372b31 2905 bad_reg:
61405e97 2906 mutex_unlock(&cfg80211_mutex);
b2e1b302 2907 kfree(rd);
d0e18f83 2908 return r;
b2e1b302
LR		 2909}
2910
83f5e2cf
JB		 2911static int validate_scan_freqs(struct nlattr *freqs)
2912{
2913 struct nlattr *attr1, *attr2;
2914 int n_channels = 0, tmp1, tmp2;
2915
2916 nla_for_each_nested(attr1, freqs, tmp1) {
2917 n_channels++;
2918 /*
2919 * Some hardware has a limited channel list for
2920 * scanning, and it is pretty much nonsensical
2921 * to scan for a channel twice, so disallow that
2922 * and don't require drivers to check that the
2923 * channel list they get isn't longer than what
2924 * they can scan, as long as they can scan all
2925 * the channels they registered at once.
2926 */
2927 nla_for_each_nested(attr2, freqs, tmp2)
2928 if (attr1 != attr2 &&
2929 nla_get_u32(attr1) == nla_get_u32(attr2))
2930 return 0;
2931 }
2932
2933 return n_channels;
2934}
2935
2a519311
JB		 2936static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2937{
79c97e97 2938 struct cfg80211_registered_device *rdev;
2a519311
JB		 2939 struct net_device *dev;
2940 struct cfg80211_scan_request *request;
2941 struct cfg80211_ssid *ssid;
2942 struct ieee80211_channel *channel;
2943 struct nlattr *attr;
2944 struct wiphy *wiphy;
83f5e2cf 2945 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2946 enum ieee80211_band band;
70692ad2 2947 size_t ie_len;
2a519311 2948
f4a11bb0
JB		 2949 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2950 return -EINVAL;
2951
3b85875a
JB		 2952 rtnl_lock();
2953
463d0183 2954 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2a519311 2955 if (err)
3b85875a 2956 goto out_rtnl;
2a519311 2957
79c97e97 2958 wiphy = &rdev->wiphy;
2a519311 2959
79c97e97 2960 if (!rdev->ops->scan) {
2a519311
JB		 2961 err = -EOPNOTSUPP;
2962 goto out;
2963 }
2964
35a8efe1
JM		 2965 if (!netif_running(dev)) {
2966 err = -ENETDOWN;
2967 goto out;
2968 }
2969
79c97e97 2970 if (rdev->scan_req) {
2a519311 2971 err = -EBUSY;
3b85875a 2972 goto out;
2a519311
JB		 2973 }
2974
2975 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2976 n_channels = validate_scan_freqs(
2977 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2a519311
JB		 2978 if (!n_channels) {
2979 err = -EINVAL;
3b85875a 2980 goto out;
2a519311
JB		 2981 }
2982 } else {
83f5e2cf
JB		 2983 n_channels = 0;
2984
2a519311
JB		 2985 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2986 if (wiphy->bands[band])
2987 n_channels += wiphy->bands[band]->n_channels;
2988 }
2989
2990 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2991 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2992 n_ssids++;
2993
2994 if (n_ssids > wiphy->max_scan_ssids) {
2995 err = -EINVAL;
3b85875a 2996 goto out;
2a519311
JB		 2997 }
2998
70692ad2
JM		 2999 if (info->attrs[NL80211_ATTR_IE])
3000 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3001 else
3002 ie_len = 0;
3003
18a83659
JB		 3004 if (ie_len > wiphy->max_scan_ie_len) {
3005 err = -EINVAL;
3006 goto out;
3007 }
3008
2a519311
JB		 3009 request = kzalloc(sizeof(*request)
3010 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3011 + sizeof(channel) * n_channels
3012 + ie_len, GFP_KERNEL);
2a519311
JB		 3013 if (!request) {
3014 err = -ENOMEM;
3b85875a 3015 goto out;
2a519311
JB		 3016 }
3017
2a519311 3018 if (n_ssids)
5ba63533 3019 request->ssids = (void *)&request->channels[n_channels];
2a519311 3020 request->n_ssids = n_ssids;
70692ad2
JM		 3021 if (ie_len) {
3022 if (request->ssids)
3023 request->ie = (void *)(request->ssids + n_ssids);
3024 else
3025 request->ie = (void *)(request->channels + n_channels);
3026 }
2a519311 3027
584991dc 3028 i = 0;
2a519311
JB		 3029 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3030 /* user specified, bail out if channel not found */
2a519311 3031 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3032 struct ieee80211_channel *chan;
3033
3034 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3035
3036 if (!chan) {
2a519311
JB		 3037 err = -EINVAL;
3038 goto out_free;
3039 }
584991dc
JB		 3040
3041 /* ignore disabled channels */
3042 if (chan->flags & IEEE80211_CHAN_DISABLED)
3043 continue;
3044
3045 request->channels[i] = chan;
2a519311
JB		 3046 i++;
3047 }
3048 } else {
3049 /* all channels */
2a519311
JB		 3050 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3051 int j;
3052 if (!wiphy->bands[band])
3053 continue;
3054 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3055 struct ieee80211_channel *chan;
3056
3057 chan = &wiphy->bands[band]->channels[j];
3058
3059 if (chan->flags & IEEE80211_CHAN_DISABLED)
3060 continue;
3061
3062 request->channels[i] = chan;
2a519311
JB		 3063 i++;
3064 }
3065 }
3066 }
3067
584991dc
JB		 3068 if (!i) {
3069 err = -EINVAL;
3070 goto out_free;
3071 }
3072
3073 request->n_channels = i;
3074
2a519311
JB		 3075 i = 0;
3076 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3077 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3078 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3079 err = -EINVAL;
3080 goto out_free;
3081 }
3082 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3083 request->ssids[i].ssid_len = nla_len(attr);
3084 i++;
3085 }
3086 }
3087
70692ad2
JM		 3088 if (info->attrs[NL80211_ATTR_IE]) {
3089 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3090 memcpy((void *)request->ie,
3091 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3092 request->ie_len);
3093 }
3094
463d0183 3095 request->dev = dev;
79c97e97 3096 request->wiphy = &rdev->wiphy;
2a519311 3097
79c97e97
JB		 3098 rdev->scan_req = request;
3099 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3100
463d0183 3101 if (!err) {
79c97e97 3102 nl80211_send_scan_start(rdev, dev);
463d0183
JB		 3103 dev_hold(dev);
3104 }
a538e2d5 3105
2a519311
JB		 3106 out_free:
3107 if (err) {
79c97e97 3108 rdev->scan_req = NULL;
2a519311
JB		 3109 kfree(request);
3110 }
2a519311 3111 out:
79c97e97 3112 cfg80211_unlock_rdev(rdev);
2a519311 3113 dev_put(dev);
3b85875a
JB		 3114 out_rtnl:
3115 rtnl_unlock();
3116
2a519311
JB		 3117 return err;
3118}
3119
3120static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3121 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3122 struct wireless_dev *wdev,
3123 struct cfg80211_internal_bss *intbss)
2a519311 3124{
48ab905d 3125 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3126 void *hdr;
3127 struct nlattr *bss;
48ab905d
JB		 3128 int i;
3129
3130 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3131
3132 hdr = nl80211hdr_put(msg, pid, seq, flags,
3133 NL80211_CMD_NEW_SCAN_RESULTS);
3134 if (!hdr)
3135 return -1;
3136
f5ea9120 3137 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3139
3140 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3141 if (!bss)
3142 goto nla_put_failure;
3143 if (!is_zero_ether_addr(res->bssid))
3144 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3145 if (res->information_elements && res->len_information_elements)
3146 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3147 res->len_information_elements,
3148 res->information_elements);
3149 if (res->tsf)
3150 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3151 if (res->beacon_interval)
3152 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3153 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3154 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3155 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3156 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3157
77965c97 3158 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3159 case CFG80211_SIGNAL_TYPE_MBM:
3160 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3161 break;
3162 case CFG80211_SIGNAL_TYPE_UNSPEC:
3163 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3164 break;
3165 default:
3166 break;
3167 }
3168
48ab905d
JB		 3169 switch (wdev->iftype) {
3170 case NL80211_IFTYPE_STATION:
3171 if (intbss == wdev->current_bss)
3172 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3173 NL80211_BSS_STATUS_ASSOCIATED);
3174 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3175 if (intbss != wdev->auth_bsses[i])
3176 continue;
3177 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3178 NL80211_BSS_STATUS_AUTHENTICATED);
3179 break;
3180 }
3181 break;
3182 case NL80211_IFTYPE_ADHOC:
3183 if (intbss == wdev->current_bss)
3184 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3185 NL80211_BSS_STATUS_IBSS_JOINED);
3186 break;
3187 default:
3188 break;
3189 }
3190
2a519311
JB		 3191 nla_nest_end(msg, bss);
3192
3193 return genlmsg_end(msg, hdr);
3194
3195 nla_put_failure:
3196 genlmsg_cancel(msg, hdr);
3197 return -EMSGSIZE;
3198}
3199
3200static int nl80211_dump_scan(struct sk_buff *skb,
3201 struct netlink_callback *cb)
3202{
48ab905d
JB		 3203 struct cfg80211_registered_device *rdev;
3204 struct net_device *dev;
2a519311 3205 struct cfg80211_internal_bss *scan;
48ab905d 3206 struct wireless_dev *wdev;
2a519311
JB		 3207 int ifidx = cb->args[0];
3208 int start = cb->args[1], idx = 0;
3209 int err;
3210
a043897a
HS		 3211 if (!ifidx)
3212 ifidx = nl80211_get_ifidx(cb);
3213 if (ifidx < 0)
3214 return ifidx;
3215 cb->args[0] = ifidx;
2a519311 3216
463d0183 3217 dev = dev_get_by_index(sock_net(skb->sk), ifidx);
48ab905d 3218 if (!dev)
2a519311
JB		 3219 return -ENODEV;
3220
463d0183 3221 rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
48ab905d
JB		 3222 if (IS_ERR(rdev)) {
3223 err = PTR_ERR(rdev);
2a519311
JB		 3224 goto out_put_netdev;
3225 }
3226
48ab905d 3227 wdev = dev->ieee80211_ptr;
2a519311 3228
48ab905d
JB		 3229 wdev_lock(wdev);
3230 spin_lock_bh(&rdev->bss_lock);
3231 cfg80211_bss_expire(rdev);
3232
3233 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3234 if (++idx <= start)
3235 continue;
3236 if (nl80211_send_bss(skb,
3237 NETLINK_CB(cb->skb).pid,
3238 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3239 rdev, wdev, scan) < 0) {
2a519311
JB		 3240 idx--;
3241 goto out;
3242 }
3243 }
3244
3245 out:
48ab905d
JB		 3246 spin_unlock_bh(&rdev->bss_lock);
3247 wdev_unlock(wdev);
2a519311
JB		 3248
3249 cb->args[1] = idx;
3250 err = skb->len;
48ab905d 3251 cfg80211_unlock_rdev(rdev);
2a519311 3252 out_put_netdev:
48ab905d 3253 dev_put(dev);
2a519311
JB		 3254
3255 return err;
3256}
3257
61fa713c
HS		 3258static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3259 int flags, struct net_device *dev,
3260 struct survey_info *survey)
3261{
3262 void *hdr;
3263 struct nlattr *infoattr;
3264
3265 /* Survey without a channel doesn't make sense */
3266 if (!survey->channel)
3267 return -EINVAL;
3268
3269 hdr = nl80211hdr_put(msg, pid, seq, flags,
3270 NL80211_CMD_NEW_SURVEY_RESULTS);
3271 if (!hdr)
3272 return -ENOMEM;
3273
3274 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3275
3276 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3277 if (!infoattr)
3278 goto nla_put_failure;
3279
3280 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3281 survey->channel->center_freq);
3282 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3283 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3284 survey->noise);
3285
3286 nla_nest_end(msg, infoattr);
3287
3288 return genlmsg_end(msg, hdr);
3289
3290 nla_put_failure:
3291 genlmsg_cancel(msg, hdr);
3292 return -EMSGSIZE;
3293}
3294
3295static int nl80211_dump_survey(struct sk_buff *skb,
3296 struct netlink_callback *cb)
3297{
3298 struct survey_info survey;
3299 struct cfg80211_registered_device *dev;
3300 struct net_device *netdev;
3301 int ifidx = cb->args[0];
3302 int survey_idx = cb->args[1];
3303 int res;
3304
3305 if (!ifidx)
3306 ifidx = nl80211_get_ifidx(cb);
3307 if (ifidx < 0)
3308 return ifidx;
3309 cb->args[0] = ifidx;
3310
3311 rtnl_lock();
3312
3313 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3314 if (!netdev) {
3315 res = -ENODEV;
3316 goto out_rtnl;
3317 }
3318
3319 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3320 if (IS_ERR(dev)) {
3321 res = PTR_ERR(dev);
3322 goto out_rtnl;
3323 }
3324
3325 if (!dev->ops->dump_survey) {
3326 res = -EOPNOTSUPP;
3327 goto out_err;
3328 }
3329
3330 while (1) {
3331 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3332 &survey);
3333 if (res == -ENOENT)
3334 break;
3335 if (res)
3336 goto out_err;
3337
3338 if (nl80211_send_survey(skb,
3339 NETLINK_CB(cb->skb).pid,
3340 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3341 netdev,
3342 &survey) < 0)
3343 goto out;
3344 survey_idx++;
3345 }
3346
3347 out:
3348 cb->args[1] = survey_idx;
3349 res = skb->len;
3350 out_err:
3351 cfg80211_unlock_rdev(dev);
3352 out_rtnl:
3353 rtnl_unlock();
3354
3355 return res;
3356}
3357
255e737e
JM		 3358static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3359{
b23aa676
SO		 3360 return auth_type <= NL80211_AUTHTYPE_MAX;
3361}
3362
3363static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3364{
3365 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3366 NL80211_WPA_VERSION_2));
3367}
3368
3369static bool nl80211_valid_akm_suite(u32 akm)
3370{
3371 return akm == WLAN_AKM_SUITE_8021X ||
3372 akm == WLAN_AKM_SUITE_PSK;
3373}
3374
3375static bool nl80211_valid_cipher_suite(u32 cipher)
3376{
3377 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3378 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3379 cipher == WLAN_CIPHER_SUITE_TKIP ||
3380 cipher == WLAN_CIPHER_SUITE_CCMP ||
3381 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3382}
3383
b23aa676 3384
636a5d36
JM		 3385static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3386{
79c97e97 3387 struct cfg80211_registered_device *rdev;
636a5d36 3388 struct net_device *dev;
19957bb3
JB		 3389 struct ieee80211_channel *chan;
3390 const u8 *bssid, *ssid, *ie = NULL;
3391 int err, ssid_len, ie_len = 0;
3392 enum nl80211_auth_type auth_type;
fffd0934 3393 struct key_parse key;
636a5d36 3394
f4a11bb0
JB		 3395 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3396 return -EINVAL;
3397
3398 if (!info->attrs[NL80211_ATTR_MAC])
3399 return -EINVAL;
3400
1778092e
JM		 3401 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3402 return -EINVAL;
3403
19957bb3
JB		 3404 if (!info->attrs[NL80211_ATTR_SSID])
3405 return -EINVAL;
3406
3407 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3408 return -EINVAL;
3409
fffd0934
JB		 3410 err = nl80211_parse_key(info, &key);
3411 if (err)
3412 return err;
3413
3414 if (key.idx >= 0) {
3415 if (!key.p.key || !key.p.key_len)
3416 return -EINVAL;
3417 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3418 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3419 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3420 key.p.key_len != WLAN_KEY_LEN_WEP104))
3421 return -EINVAL;
3422 if (key.idx > 4)
3423 return -EINVAL;
3424 } else {
3425 key.p.key_len = 0;
3426 key.p.key = NULL;
3427 }
3428
636a5d36
JM		 3429 rtnl_lock();
3430
463d0183 3431 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3432 if (err)
3433 goto unlock_rtnl;
3434
79c97e97 3435 if (!rdev->ops->auth) {
636a5d36
JM		 3436 err = -EOPNOTSUPP;
3437 goto out;
3438 }
3439
eec60b03
JM		 3440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3441 err = -EOPNOTSUPP;
3442 goto out;
3443 }
3444
35a8efe1
JM		 3445 if (!netif_running(dev)) {
3446 err = -ENETDOWN;
3447 goto out;
3448 }
3449
19957bb3 3450 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3451 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3
JB		 3452 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3453 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3454 err = -EINVAL;
3455 goto out;
636a5d36
JM		 3456 }
3457
19957bb3
JB		 3458 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3459 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3460
3461 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3462 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3463 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3464 }
3465
19957bb3
JB		 3466 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3467 if (!nl80211_valid_auth_type(auth_type)) {
1778092e
JM		 3468 err = -EINVAL;
3469 goto out;
636a5d36
JM		 3470 }
3471
79c97e97 3472 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
fffd0934
JB		 3473 ssid, ssid_len, ie, ie_len,
3474 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 3475
3476out:
79c97e97 3477 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3478 dev_put(dev);
3479unlock_rtnl:
3480 rtnl_unlock();
3481 return err;
3482}
3483
b23aa676 3484static int nl80211_crypto_settings(struct genl_info *info,
3dc27d25
JB		 3485 struct cfg80211_crypto_settings *settings,
3486 int cipher_limit)
b23aa676 3487{
c0b2bbd8
JB		 3488 memset(settings, 0, sizeof(*settings));
3489
b23aa676
SO		 3490 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3491
3492 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3493 void *data;
3494 int len, i;
3495
3496 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3497 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3498 settings->n_ciphers_pairwise = len / sizeof(u32);
3499
3500 if (len % sizeof(u32))
3501 return -EINVAL;
3502
3dc27d25 3503 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3504 return -EINVAL;
3505
3506 memcpy(settings->ciphers_pairwise, data, len);
3507
3508 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3509 if (!nl80211_valid_cipher_suite(
3510 settings->ciphers_pairwise[i]))
3511 return -EINVAL;
3512 }
3513
3514 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3515 settings->cipher_group =
3516 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3517 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3518 return -EINVAL;
3519 }
3520
3521 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3522 settings->wpa_versions =
3523 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3524 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3525 return -EINVAL;
3526 }
3527
3528 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3529 void *data;
3530 int len, i;
3531
3532 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3533 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3534 settings->n_akm_suites = len / sizeof(u32);
3535
3536 if (len % sizeof(u32))
3537 return -EINVAL;
3538
3539 memcpy(settings->akm_suites, data, len);
3540
3541 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3542 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3543 return -EINVAL;
3544 }
3545
3546 return 0;
3547}
3548
636a5d36
JM		 3549static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3550{
19957bb3 3551 struct cfg80211_registered_device *rdev;
636a5d36 3552 struct net_device *dev;
19957bb3 3553 struct cfg80211_crypto_settings crypto;
59bbb6f7 3554 struct ieee80211_channel *chan, *fixedchan;
3e5d7649 3555 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3556 int err, ssid_len, ie_len = 0;
3557 bool use_mfp = false;
636a5d36 3558
f4a11bb0
JB		 3559 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3560 return -EINVAL;
3561
3562 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3563 !info->attrs[NL80211_ATTR_SSID] ||
3564 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3565 return -EINVAL;
3566
636a5d36
JM		 3567 rtnl_lock();
3568
463d0183 3569 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3570 if (err)
3571 goto unlock_rtnl;
3572
19957bb3 3573 if (!rdev->ops->assoc) {
636a5d36
JM		 3574 err = -EOPNOTSUPP;
3575 goto out;
3576 }
3577
eec60b03
JM		 3578 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3579 err = -EOPNOTSUPP;
3580 goto out;
3581 }
3582
35a8efe1
JM		 3583 if (!netif_running(dev)) {
3584 err = -ENETDOWN;
3585 goto out;
3586 }
3587
19957bb3 3588 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3589
19957bb3
JB		 3590 chan = ieee80211_get_channel(&rdev->wiphy,
3591 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3592 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3593 err = -EINVAL;
3594 goto out;
636a5d36
JM		 3595 }
3596
59bbb6f7
JB		 3597 mutex_lock(&rdev->devlist_mtx);
3598 fixedchan = rdev_fixed_channel(rdev, NULL);
3599 if (fixedchan && chan != fixedchan) {
3600 err = -EBUSY;
3601 mutex_unlock(&rdev->devlist_mtx);
3602 goto out;
3603 }
3604 mutex_unlock(&rdev->devlist_mtx);
3605
19957bb3
JB		 3606 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3607 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3608
3609 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3610 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3611 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3612 }
3613
dc6382ce 3614 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3615 enum nl80211_mfp mfp =
dc6382ce 3616 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3617 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3618 use_mfp = true;
4f5dadce 3619 else if (mfp != NL80211_MFP_NO) {
dc6382ce
JM		 3620 err = -EINVAL;
3621 goto out;
3622 }
3623 }
3624
3e5d7649
JB		 3625 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3626 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3627
3dc27d25 3628 err = nl80211_crypto_settings(info, &crypto, 1);
b23aa676 3629 if (!err)
3e5d7649
JB		 3630 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3631 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3632 &crypto);
636a5d36
JM		 3633
3634out:
4d0c8aea 3635 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3636 dev_put(dev);
3637unlock_rtnl:
3638 rtnl_unlock();
3639 return err;
3640}
3641
3642static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3643{
79c97e97 3644 struct cfg80211_registered_device *rdev;
636a5d36 3645 struct net_device *dev;
19957bb3
JB		 3646 const u8 *ie = NULL, *bssid;
3647 int err, ie_len = 0;
3648 u16 reason_code;
636a5d36 3649
f4a11bb0
JB		 3650 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3651 return -EINVAL;
3652
3653 if (!info->attrs[NL80211_ATTR_MAC])
3654 return -EINVAL;
3655
3656 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3657 return -EINVAL;
3658
636a5d36
JM		 3659 rtnl_lock();
3660
463d0183 3661 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3662 if (err)
3663 goto unlock_rtnl;
3664
79c97e97 3665 if (!rdev->ops->deauth) {
636a5d36
JM		 3666 err = -EOPNOTSUPP;
3667 goto out;
3668 }
3669
eec60b03
JM		 3670 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3671 err = -EOPNOTSUPP;
3672 goto out;
3673 }
3674
35a8efe1
JM		 3675 if (!netif_running(dev)) {
3676 err = -ENETDOWN;
3677 goto out;
3678 }
3679
19957bb3 3680 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3681
19957bb3
JB		 3682 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3683 if (reason_code == 0) {
f4a11bb0
JB		 3684 /* Reason Code 0 is reserved */
3685 err = -EINVAL;
3686 goto out;
255e737e 3687 }
636a5d36
JM		 3688
3689 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3690 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3691 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3692 }
3693
79c97e97 3694 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code);
636a5d36
JM		 3695
3696out:
79c97e97 3697 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3698 dev_put(dev);
3699unlock_rtnl:
3700 rtnl_unlock();
3701 return err;
3702}
3703
3704static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3705{
79c97e97 3706 struct cfg80211_registered_device *rdev;
636a5d36 3707 struct net_device *dev;
19957bb3
JB		 3708 const u8 *ie = NULL, *bssid;
3709 int err, ie_len = 0;
3710 u16 reason_code;
636a5d36 3711
f4a11bb0
JB		 3712 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3713 return -EINVAL;
3714
3715 if (!info->attrs[NL80211_ATTR_MAC])
3716 return -EINVAL;
3717
3718 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3719 return -EINVAL;
3720
636a5d36
JM		 3721 rtnl_lock();
3722
463d0183 3723 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3724 if (err)
3725 goto unlock_rtnl;
3726
79c97e97 3727 if (!rdev->ops->disassoc) {
636a5d36
JM		 3728 err = -EOPNOTSUPP;
3729 goto out;
3730 }
3731
eec60b03
JM		 3732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3733 err = -EOPNOTSUPP;
3734 goto out;
3735 }
3736
35a8efe1
JM		 3737 if (!netif_running(dev)) {
3738 err = -ENETDOWN;
3739 goto out;
3740 }
3741
19957bb3 3742 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3743
19957bb3
JB		 3744 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3745 if (reason_code == 0) {
f4a11bb0
JB		 3746 /* Reason Code 0 is reserved */
3747 err = -EINVAL;
3748 goto out;
255e737e 3749 }
636a5d36
JM		 3750
3751 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3752 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3753 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3754 }
3755
79c97e97 3756 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code);
636a5d36
JM		 3757
3758out:
79c97e97 3759 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3760 dev_put(dev);
3761unlock_rtnl:
3762 rtnl_unlock();
3763 return err;
3764}
3765
04a773ad
JB		 3766static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3767{
79c97e97 3768 struct cfg80211_registered_device *rdev;
04a773ad
JB		 3769 struct net_device *dev;
3770 struct cfg80211_ibss_params ibss;
3771 struct wiphy *wiphy;
fffd0934 3772 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3773 int err;
3774
8e30bc55
JB		 3775 memset(&ibss, 0, sizeof(ibss));
3776
04a773ad
JB		 3777 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3778 return -EINVAL;
3779
3780 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3781 !info->attrs[NL80211_ATTR_SSID] ||
3782 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3783 return -EINVAL;
3784
8e30bc55
JB		 3785 ibss.beacon_interval = 100;
3786
3787 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3788 ibss.beacon_interval =
3789 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3790 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3791 return -EINVAL;
3792 }
3793
04a773ad
JB		 3794 rtnl_lock();
3795
463d0183 3796 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
04a773ad
JB		 3797 if (err)
3798 goto unlock_rtnl;
3799
79c97e97 3800 if (!rdev->ops->join_ibss) {
04a773ad
JB		 3801 err = -EOPNOTSUPP;
3802 goto out;
3803 }
3804
3805 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3806 err = -EOPNOTSUPP;
3807 goto out;
3808 }
3809
3810 if (!netif_running(dev)) {
3811 err = -ENETDOWN;
3812 goto out;
3813 }
3814
79c97e97 3815 wiphy = &rdev->wiphy;
04a773ad
JB		 3816
3817 if (info->attrs[NL80211_ATTR_MAC])
3818 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3819 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3820 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3821
3822 if (info->attrs[NL80211_ATTR_IE]) {
3823 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3824 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3825 }
3826
3827 ibss.channel = ieee80211_get_channel(wiphy,
3828 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3829 if (!ibss.channel ||
3830 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3831 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3832 err = -EINVAL;
3833 goto out;
3834 }
3835
3836 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3837 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3838
3839 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3840 connkeys = nl80211_parse_connkeys(rdev,
3841 info->attrs[NL80211_ATTR_KEYS]);
3842 if (IS_ERR(connkeys)) {
3843 err = PTR_ERR(connkeys);
3844 connkeys = NULL;
3845 goto out;
3846 }
3847 }
04a773ad 3848
fffd0934 3849 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
04a773ad
JB		 3850
3851out:
79c97e97 3852 cfg80211_unlock_rdev(rdev);
04a773ad
JB		 3853 dev_put(dev);
3854unlock_rtnl:
fffd0934
JB		 3855 if (err)
3856 kfree(connkeys);
04a773ad
JB		 3857 rtnl_unlock();
3858 return err;
3859}
3860
3861static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3862{
79c97e97 3863 struct cfg80211_registered_device *rdev;
04a773ad
JB		 3864 struct net_device *dev;
3865 int err;
3866
3867 rtnl_lock();
3868
463d0183 3869 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
04a773ad
JB		 3870 if (err)
3871 goto unlock_rtnl;
3872
79c97e97 3873 if (!rdev->ops->leave_ibss) {
04a773ad
JB		 3874 err = -EOPNOTSUPP;
3875 goto out;
3876 }
3877
3878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3879 err = -EOPNOTSUPP;
3880 goto out;
3881 }
3882
3883 if (!netif_running(dev)) {
3884 err = -ENETDOWN;
3885 goto out;
3886 }
3887
79c97e97 3888 err = cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3889
3890out:
79c97e97 3891 cfg80211_unlock_rdev(rdev);
04a773ad
JB		 3892 dev_put(dev);
3893unlock_rtnl:
3894 rtnl_unlock();
3895 return err;
3896}
3897
aff89a9b
JB		 3898#ifdef CONFIG_NL80211_TESTMODE
3899static struct genl_multicast_group nl80211_testmode_mcgrp = {
3900 .name = "testmode",
3901};
3902
3903static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3904{
3905 struct cfg80211_registered_device *rdev;
3906 int err;
3907
3908 if (!info->attrs[NL80211_ATTR_TESTDATA])
3909 return -EINVAL;
3910
3911 rtnl_lock();
3912
3913 rdev = cfg80211_get_dev_from_info(info);
3914 if (IS_ERR(rdev)) {
3915 err = PTR_ERR(rdev);
3916 goto unlock_rtnl;
3917 }
3918
3919 err = -EOPNOTSUPP;
3920 if (rdev->ops->testmode_cmd) {
3921 rdev->testmode_info = info;
3922 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3923 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3924 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3925 rdev->testmode_info = NULL;
3926 }
3927
4d0c8aea 3928 cfg80211_unlock_rdev(rdev);
aff89a9b
JB		 3929
3930 unlock_rtnl:
3931 rtnl_unlock();
3932 return err;
3933}
3934
3935static struct sk_buff *
3936__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3937 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3938{
3939 struct sk_buff *skb;
3940 void *hdr;
3941 struct nlattr *data;
3942
3943 skb = nlmsg_new(approxlen + 100, gfp);
3944 if (!skb)
3945 return NULL;
3946
3947 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3948 if (!hdr) {
3949 kfree_skb(skb);
3950 return NULL;
3951 }
3952
3953 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3954 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3955
3956 ((void **)skb->cb)[0] = rdev;
3957 ((void **)skb->cb)[1] = hdr;
3958 ((void **)skb->cb)[2] = data;
3959
3960 return skb;
3961
3962 nla_put_failure:
3963 kfree_skb(skb);
3964 return NULL;
3965}
3966
3967struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3968 int approxlen)
3969{
3970 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3971
3972 if (WARN_ON(!rdev->testmode_info))
3973 return NULL;
3974
3975 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3976 rdev->testmode_info->snd_pid,
3977 rdev->testmode_info->snd_seq,
3978 GFP_KERNEL);
3979}
3980EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3981
3982int cfg80211_testmode_reply(struct sk_buff *skb)
3983{
3984 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3985 void *hdr = ((void **)skb->cb)[1];
3986 struct nlattr *data = ((void **)skb->cb)[2];
3987
3988 if (WARN_ON(!rdev->testmode_info)) {
3989 kfree_skb(skb);
3990 return -EINVAL;
3991 }
3992
3993 nla_nest_end(skb, data);
3994 genlmsg_end(skb, hdr);
3995 return genlmsg_reply(skb, rdev->testmode_info);
3996}
3997EXPORT_SYMBOL(cfg80211_testmode_reply);
3998
3999struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4000 int approxlen, gfp_t gfp)
4001{
4002 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4003
4004 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4005}
4006EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4007
4008void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4009{
4010 void *hdr = ((void **)skb->cb)[1];
4011 struct nlattr *data = ((void **)skb->cb)[2];
4012
4013 nla_nest_end(skb, data);
4014 genlmsg_end(skb, hdr);
4015 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4016}
4017EXPORT_SYMBOL(cfg80211_testmode_event);
4018#endif
4019
b23aa676
SO		 4020static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4021{
79c97e97 4022 struct cfg80211_registered_device *rdev;
b23aa676
SO		 4023 struct net_device *dev;
4024 struct cfg80211_connect_params connect;
4025 struct wiphy *wiphy;
fffd0934 4026 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4027 int err;
4028
4029 memset(&connect, 0, sizeof(connect));
4030
4031 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4032 return -EINVAL;
4033
4034 if (!info->attrs[NL80211_ATTR_SSID] ||
4035 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4036 return -EINVAL;
4037
4038 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4039 connect.auth_type =
4040 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4041 if (!nl80211_valid_auth_type(connect.auth_type))
4042 return -EINVAL;
4043 } else
4044 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4045
4046 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4047
3dc27d25
JB		 4048 err = nl80211_crypto_settings(info, &connect.crypto,
4049 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4050 if (err)
4051 return err;
4052 rtnl_lock();
4053
463d0183 4054 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
b23aa676
SO		 4055 if (err)
4056 goto unlock_rtnl;
4057
4058 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4059 err = -EOPNOTSUPP;
4060 goto out;
4061 }
4062
4063 if (!netif_running(dev)) {
4064 err = -ENETDOWN;
4065 goto out;
4066 }
4067
79c97e97 4068 wiphy = &rdev->wiphy;
b23aa676 4069
b23aa676
SO		 4070 if (info->attrs[NL80211_ATTR_MAC])
4071 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4072 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4073 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4074
4075 if (info->attrs[NL80211_ATTR_IE]) {
4076 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4077 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4078 }
4079
4080 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4081 connect.channel =
4082 ieee80211_get_channel(wiphy,
4083 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4084 if (!connect.channel ||
4085 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
4086 err = -EINVAL;
4087 goto out;
4088 }
4089 }
4090
fffd0934
JB		 4091 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4092 connkeys = nl80211_parse_connkeys(rdev,
4093 info->attrs[NL80211_ATTR_KEYS]);
4094 if (IS_ERR(connkeys)) {
4095 err = PTR_ERR(connkeys);
4096 connkeys = NULL;
4097 goto out;
4098 }
4099 }
4100
4101 err = cfg80211_connect(rdev, dev, &connect, connkeys);
b23aa676
SO		 4102
4103out:
79c97e97 4104 cfg80211_unlock_rdev(rdev);
b23aa676
SO		 4105 dev_put(dev);
4106unlock_rtnl:
fffd0934
JB		 4107 if (err)
4108 kfree(connkeys);
b23aa676
SO		 4109 rtnl_unlock();
4110 return err;
4111}
4112
4113static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4114{
79c97e97 4115 struct cfg80211_registered_device *rdev;
b23aa676
SO		 4116 struct net_device *dev;
4117 int err;
4118 u16 reason;
4119
4120 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4121 reason = WLAN_REASON_DEAUTH_LEAVING;
4122 else
4123 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4124
4125 if (reason == 0)
4126 return -EINVAL;
4127
4128 rtnl_lock();
4129
463d0183 4130 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
b23aa676
SO		 4131 if (err)
4132 goto unlock_rtnl;
4133
4134 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4135 err = -EOPNOTSUPP;
4136 goto out;
4137 }
4138
4139 if (!netif_running(dev)) {
4140 err = -ENETDOWN;
4141 goto out;
4142 }
4143
79c97e97 4144 err = cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4145
4146out:
79c97e97 4147 cfg80211_unlock_rdev(rdev);
b23aa676
SO		 4148 dev_put(dev);
4149unlock_rtnl:
4150 rtnl_unlock();
4151 return err;
4152}
4153
463d0183
JB		 4154static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4155{
4156 struct cfg80211_registered_device *rdev;
4157 struct net *net;
4158 int err;
4159 u32 pid;
4160
4161 if (!info->attrs[NL80211_ATTR_PID])
4162 return -EINVAL;
4163
4164 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4165
4166 rtnl_lock();
4167
4168 rdev = cfg80211_get_dev_from_info(info);
4169 if (IS_ERR(rdev)) {
4170 err = PTR_ERR(rdev);
8a8e05e5 4171 goto out_rtnl;
463d0183
JB		 4172 }
4173
4174 net = get_net_ns_by_pid(pid);
4175 if (IS_ERR(net)) {
4176 err = PTR_ERR(net);
4177 goto out;
4178 }
4179
4180 err = 0;
4181
4182 /* check if anything to do */
4183 if (net_eq(wiphy_net(&rdev->wiphy), net))
4184 goto out_put_net;
4185
4186 err = cfg80211_switch_netns(rdev, net);
4187 out_put_net:
4188 put_net(net);
4189 out:
4190 cfg80211_unlock_rdev(rdev);
8a8e05e5 4191 out_rtnl:
463d0183
JB		 4192 rtnl_unlock();
4193 return err;
4194}
4195
67fbb16b
SO		 4196static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4197{
4198 struct cfg80211_registered_device *rdev;
4199 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4200 struct cfg80211_pmksa *pmksa) = NULL;
4201 int err;
4202 struct net_device *dev;
4203 struct cfg80211_pmksa pmksa;
4204
4205 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4206
4207 if (!info->attrs[NL80211_ATTR_MAC])
4208 return -EINVAL;
4209
4210 if (!info->attrs[NL80211_ATTR_PMKID])
4211 return -EINVAL;
4212
4213 rtnl_lock();
4214
4215 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4216 if (err)
4217 goto out_rtnl;
4218
4219 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4220 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4221
4222 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4223 err = -EOPNOTSUPP;
4224 goto out;
4225 }
4226
4227 switch (info->genlhdr->cmd) {
4228 case NL80211_CMD_SET_PMKSA:
4229 rdev_ops = rdev->ops->set_pmksa;
4230 break;
4231 case NL80211_CMD_DEL_PMKSA:
4232 rdev_ops = rdev->ops->del_pmksa;
4233 break;
4234 default:
4235 WARN_ON(1);
4236 break;
4237 }
4238
4239 if (!rdev_ops) {
4240 err = -EOPNOTSUPP;
4241 goto out;
4242 }
4243
4244 err = rdev_ops(&rdev->wiphy, dev, &pmksa);
4245
4246 out:
4247 cfg80211_unlock_rdev(rdev);
4248 dev_put(dev);
4249 out_rtnl:
4250 rtnl_unlock();
4251
4252 return err;
4253}
4254
4255static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4256{
4257 struct cfg80211_registered_device *rdev;
4258 int err;
4259 struct net_device *dev;
4260
4261 rtnl_lock();
4262
4263 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4264 if (err)
4265 goto out_rtnl;
4266
4267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4268 err = -EOPNOTSUPP;
4269 goto out;
4270 }
4271
4272 if (!rdev->ops->flush_pmksa) {
4273 err = -EOPNOTSUPP;
4274 goto out;
4275 }
4276
4277 err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4278
4279 out:
4280 cfg80211_unlock_rdev(rdev);
4281 dev_put(dev);
4282 out_rtnl:
4283 rtnl_unlock();
4284
4285 return err;
4286
4287}
4288
9588bbd5
JM		 4289static int nl80211_remain_on_channel(struct sk_buff *skb,
4290 struct genl_info *info)
4291{
4292 struct cfg80211_registered_device *rdev;
4293 struct net_device *dev;
4294 struct ieee80211_channel *chan;
4295 struct sk_buff *msg;
4296 void *hdr;
4297 u64 cookie;
4298 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4299 u32 freq, duration;
4300 int err;
4301
4302 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4303 !info->attrs[NL80211_ATTR_DURATION])
4304 return -EINVAL;
4305
4306 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4307
4308 /*
4309 * We should be on that channel for at least one jiffie,
4310 * and more than 5 seconds seems excessive.
4311 */
4312 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4313 return -EINVAL;
4314
4315 rtnl_lock();
4316
4317 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4318 if (err)
4319 goto unlock_rtnl;
4320
4321 if (!rdev->ops->remain_on_channel) {
4322 err = -EOPNOTSUPP;
4323 goto out;
4324 }
4325
4326 if (!netif_running(dev)) {
4327 err = -ENETDOWN;
4328 goto out;
4329 }
4330
4331 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4332 channel_type = nla_get_u32(
4333 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4334 if (channel_type != NL80211_CHAN_NO_HT &&
4335 channel_type != NL80211_CHAN_HT20 &&
4336 channel_type != NL80211_CHAN_HT40PLUS &&
4337 channel_type != NL80211_CHAN_HT40MINUS)
4338 err = -EINVAL;
4339 goto out;
4340 }
4341
4342 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4343 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4344 if (chan == NULL) {
4345 err = -EINVAL;
4346 goto out;
4347 }
4348
4349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4350 if (!msg) {
4351 err = -ENOMEM;
4352 goto out;
4353 }
4354
4355 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4356 NL80211_CMD_REMAIN_ON_CHANNEL);
4357
4358 if (IS_ERR(hdr)) {
4359 err = PTR_ERR(hdr);
4360 goto free_msg;
4361 }
4362
4363 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4364 channel_type, duration, &cookie);
4365
4366 if (err)
4367 goto free_msg;
4368
4369 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4370
4371 genlmsg_end(msg, hdr);
4372 err = genlmsg_reply(msg, info);
4373 goto out;
4374
4375 nla_put_failure:
4376 err = -ENOBUFS;
4377 free_msg:
4378 nlmsg_free(msg);
4379 out:
4380 cfg80211_unlock_rdev(rdev);
4381 dev_put(dev);
4382 unlock_rtnl:
4383 rtnl_unlock();
4384 return err;
4385}
4386
4387static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4388 struct genl_info *info)
4389{
4390 struct cfg80211_registered_device *rdev;
4391 struct net_device *dev;
4392 u64 cookie;
4393 int err;
4394
4395 if (!info->attrs[NL80211_ATTR_COOKIE])
4396 return -EINVAL;
4397
4398 rtnl_lock();
4399
4400 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4401 if (err)
4402 goto unlock_rtnl;
4403
4404 if (!rdev->ops->cancel_remain_on_channel) {
4405 err = -EOPNOTSUPP;
4406 goto out;
4407 }
4408
4409 if (!netif_running(dev)) {
4410 err = -ENETDOWN;
4411 goto out;
4412 }
4413
4414 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4415
4416 err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4417
4418 out:
4419 cfg80211_unlock_rdev(rdev);
4420 dev_put(dev);
4421 unlock_rtnl:
4422 rtnl_unlock();
4423 return err;
4424}
4425
55682965
JB		 4426static struct genl_ops nl80211_ops[] = {
4427 {
4428 .cmd = NL80211_CMD_GET_WIPHY,
4429 .doit = nl80211_get_wiphy,
4430 .dumpit = nl80211_dump_wiphy,
4431 .policy = nl80211_policy,
4432 /* can be retrieved by unprivileged users */
4433 },
4434 {
4435 .cmd = NL80211_CMD_SET_WIPHY,
4436 .doit = nl80211_set_wiphy,
4437 .policy = nl80211_policy,
4438 .flags = GENL_ADMIN_PERM,
4439 },
4440 {
4441 .cmd = NL80211_CMD_GET_INTERFACE,
4442 .doit = nl80211_get_interface,
4443 .dumpit = nl80211_dump_interface,
4444 .policy = nl80211_policy,
4445 /* can be retrieved by unprivileged users */
4446 },
4447 {
4448 .cmd = NL80211_CMD_SET_INTERFACE,
4449 .doit = nl80211_set_interface,
4450 .policy = nl80211_policy,
4451 .flags = GENL_ADMIN_PERM,
4452 },
4453 {
4454 .cmd = NL80211_CMD_NEW_INTERFACE,
4455 .doit = nl80211_new_interface,
4456 .policy = nl80211_policy,
4457 .flags = GENL_ADMIN_PERM,
4458 },
4459 {
4460 .cmd = NL80211_CMD_DEL_INTERFACE,
4461 .doit = nl80211_del_interface,
4462 .policy = nl80211_policy,
41ade00f
JB		 4463 .flags = GENL_ADMIN_PERM,
4464 },
4465 {
4466 .cmd = NL80211_CMD_GET_KEY,
4467 .doit = nl80211_get_key,
4468 .policy = nl80211_policy,
4469 .flags = GENL_ADMIN_PERM,
4470 },
4471 {
4472 .cmd = NL80211_CMD_SET_KEY,
4473 .doit = nl80211_set_key,
4474 .policy = nl80211_policy,
4475 .flags = GENL_ADMIN_PERM,
4476 },
4477 {
4478 .cmd = NL80211_CMD_NEW_KEY,
4479 .doit = nl80211_new_key,
4480 .policy = nl80211_policy,
4481 .flags = GENL_ADMIN_PERM,
4482 },
4483 {
4484 .cmd = NL80211_CMD_DEL_KEY,
4485 .doit = nl80211_del_key,
4486 .policy = nl80211_policy,
55682965
JB		 4487 .flags = GENL_ADMIN_PERM,
4488 },
ed1b6cc7
JB		 4489 {
4490 .cmd = NL80211_CMD_SET_BEACON,
4491 .policy = nl80211_policy,
4492 .flags = GENL_ADMIN_PERM,
4493 .doit = nl80211_addset_beacon,
4494 },
4495 {
4496 .cmd = NL80211_CMD_NEW_BEACON,
4497 .policy = nl80211_policy,
4498 .flags = GENL_ADMIN_PERM,
4499 .doit = nl80211_addset_beacon,
4500 },
4501 {
4502 .cmd = NL80211_CMD_DEL_BEACON,
4503 .policy = nl80211_policy,
4504 .flags = GENL_ADMIN_PERM,
4505 .doit = nl80211_del_beacon,
4506 },
5727ef1b
JB		 4507 {
4508 .cmd = NL80211_CMD_GET_STATION,
4509 .doit = nl80211_get_station,
2ec600d6 4510 .dumpit = nl80211_dump_station,
5727ef1b 4511 .policy = nl80211_policy,
5727ef1b
JB		 4512 },
4513 {
4514 .cmd = NL80211_CMD_SET_STATION,
4515 .doit = nl80211_set_station,
4516 .policy = nl80211_policy,
4517 .flags = GENL_ADMIN_PERM,
4518 },
4519 {
4520 .cmd = NL80211_CMD_NEW_STATION,
4521 .doit = nl80211_new_station,
4522 .policy = nl80211_policy,
4523 .flags = GENL_ADMIN_PERM,
4524 },
4525 {
4526 .cmd = NL80211_CMD_DEL_STATION,
4527 .doit = nl80211_del_station,
4528 .policy = nl80211_policy,
2ec600d6
LCC		 4529 .flags = GENL_ADMIN_PERM,
4530 },
4531 {
4532 .cmd = NL80211_CMD_GET_MPATH,
4533 .doit = nl80211_get_mpath,
4534 .dumpit = nl80211_dump_mpath,
4535 .policy = nl80211_policy,
4536 .flags = GENL_ADMIN_PERM,
4537 },
4538 {
4539 .cmd = NL80211_CMD_SET_MPATH,
4540 .doit = nl80211_set_mpath,
4541 .policy = nl80211_policy,
4542 .flags = GENL_ADMIN_PERM,
4543 },
4544 {
4545 .cmd = NL80211_CMD_NEW_MPATH,
4546 .doit = nl80211_new_mpath,
4547 .policy = nl80211_policy,
4548 .flags = GENL_ADMIN_PERM,
4549 },
4550 {
4551 .cmd = NL80211_CMD_DEL_MPATH,
4552 .doit = nl80211_del_mpath,
4553 .policy = nl80211_policy,
9f1ba906
JM		 4554 .flags = GENL_ADMIN_PERM,
4555 },
4556 {
4557 .cmd = NL80211_CMD_SET_BSS,
4558 .doit = nl80211_set_bss,
4559 .policy = nl80211_policy,
b2e1b302
LR		 4560 .flags = GENL_ADMIN_PERM,
4561 },
f130347c
LR		 4562 {
4563 .cmd = NL80211_CMD_GET_REG,
4564 .doit = nl80211_get_reg,
4565 .policy = nl80211_policy,
4566 /* can be retrieved by unprivileged users */
4567 },
b2e1b302
LR		 4568 {
4569 .cmd = NL80211_CMD_SET_REG,
4570 .doit = nl80211_set_reg,
4571 .policy = nl80211_policy,
4572 .flags = GENL_ADMIN_PERM,
4573 },
4574 {
4575 .cmd = NL80211_CMD_REQ_SET_REG,
4576 .doit = nl80211_req_set_reg,
4577 .policy = nl80211_policy,
93da9cc1 4578 .flags = GENL_ADMIN_PERM,
4579 },
4580 {
4581 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4582 .doit = nl80211_get_mesh_params,
4583 .policy = nl80211_policy,
4584 /* can be retrieved by unprivileged users */
4585 },
4586 {
4587 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4588 .doit = nl80211_set_mesh_params,
4589 .policy = nl80211_policy,
9aed3cc1
JM		 4590 .flags = GENL_ADMIN_PERM,
4591 },
2a519311
JB		 4592 {
4593 .cmd = NL80211_CMD_TRIGGER_SCAN,
4594 .doit = nl80211_trigger_scan,
4595 .policy = nl80211_policy,
4596 .flags = GENL_ADMIN_PERM,
4597 },
4598 {
4599 .cmd = NL80211_CMD_GET_SCAN,
4600 .policy = nl80211_policy,
4601 .dumpit = nl80211_dump_scan,
4602 },
636a5d36
JM		 4603 {
4604 .cmd = NL80211_CMD_AUTHENTICATE,
4605 .doit = nl80211_authenticate,
4606 .policy = nl80211_policy,
4607 .flags = GENL_ADMIN_PERM,
4608 },
4609 {
4610 .cmd = NL80211_CMD_ASSOCIATE,
4611 .doit = nl80211_associate,
4612 .policy = nl80211_policy,
4613 .flags = GENL_ADMIN_PERM,
4614 },
4615 {
4616 .cmd = NL80211_CMD_DEAUTHENTICATE,
4617 .doit = nl80211_deauthenticate,
4618 .policy = nl80211_policy,
4619 .flags = GENL_ADMIN_PERM,
4620 },
4621 {
4622 .cmd = NL80211_CMD_DISASSOCIATE,
4623 .doit = nl80211_disassociate,
4624 .policy = nl80211_policy,
4625 .flags = GENL_ADMIN_PERM,
4626 },
04a773ad
JB		 4627 {
4628 .cmd = NL80211_CMD_JOIN_IBSS,
4629 .doit = nl80211_join_ibss,
4630 .policy = nl80211_policy,
4631 .flags = GENL_ADMIN_PERM,
4632 },
4633 {
4634 .cmd = NL80211_CMD_LEAVE_IBSS,
4635 .doit = nl80211_leave_ibss,
4636 .policy = nl80211_policy,
4637 .flags = GENL_ADMIN_PERM,
4638 },
aff89a9b
JB		 4639#ifdef CONFIG_NL80211_TESTMODE
4640 {
4641 .cmd = NL80211_CMD_TESTMODE,
4642 .doit = nl80211_testmode_do,
4643 .policy = nl80211_policy,
4644 .flags = GENL_ADMIN_PERM,
4645 },
4646#endif
b23aa676
SO		 4647 {
4648 .cmd = NL80211_CMD_CONNECT,
4649 .doit = nl80211_connect,
4650 .policy = nl80211_policy,
4651 .flags = GENL_ADMIN_PERM,
4652 },
4653 {
4654 .cmd = NL80211_CMD_DISCONNECT,
4655 .doit = nl80211_disconnect,
4656 .policy = nl80211_policy,
4657 .flags = GENL_ADMIN_PERM,
4658 },
463d0183
JB		 4659 {
4660 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4661 .doit = nl80211_wiphy_netns,
4662 .policy = nl80211_policy,
4663 .flags = GENL_ADMIN_PERM,
4664 },
61fa713c
HS		 4665 {
4666 .cmd = NL80211_CMD_GET_SURVEY,
4667 .policy = nl80211_policy,
4668 .dumpit = nl80211_dump_survey,
4669 },
67fbb16b
SO		 4670 {
4671 .cmd = NL80211_CMD_SET_PMKSA,
4672 .doit = nl80211_setdel_pmksa,
4673 .policy = nl80211_policy,
4674 .flags = GENL_ADMIN_PERM,
4675 },
4676 {
4677 .cmd = NL80211_CMD_DEL_PMKSA,
4678 .doit = nl80211_setdel_pmksa,
4679 .policy = nl80211_policy,
4680 .flags = GENL_ADMIN_PERM,
4681 },
4682 {
4683 .cmd = NL80211_CMD_FLUSH_PMKSA,
4684 .doit = nl80211_flush_pmksa,
4685 .policy = nl80211_policy,
4686 .flags = GENL_ADMIN_PERM,
4687 },
9588bbd5
JM		 4688 {
4689 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4690 .doit = nl80211_remain_on_channel,
4691 .policy = nl80211_policy,
4692 .flags = GENL_ADMIN_PERM,
4693 },
4694 {
4695 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4696 .doit = nl80211_cancel_remain_on_channel,
4697 .policy = nl80211_policy,
4698 .flags = GENL_ADMIN_PERM,
4699 },
55682965 4700};
9588bbd5 4701
6039f6d2
JM		 4702static struct genl_multicast_group nl80211_mlme_mcgrp = {
4703 .name = "mlme",
4704};
55682965
JB		 4705
4706/* multicast groups */
4707static struct genl_multicast_group nl80211_config_mcgrp = {
4708 .name = "config",
4709};
2a519311
JB		 4710static struct genl_multicast_group nl80211_scan_mcgrp = {
4711 .name = "scan",
4712};
73d54c9e
LR		 4713static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4714 .name = "regulatory",
4715};
55682965
JB		 4716
4717/* notification functions */
4718
4719void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4720{
4721 struct sk_buff *msg;
4722
fd2120ca 4723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4724 if (!msg)
4725 return;
4726
4727 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4728 nlmsg_free(msg);
4729 return;
4730 }
4731
463d0183
JB		 4732 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4733 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 4734}
4735
362a415d
JB		 4736static int nl80211_add_scan_req(struct sk_buff *msg,
4737 struct cfg80211_registered_device *rdev)
4738{
4739 struct cfg80211_scan_request *req = rdev->scan_req;
4740 struct nlattr *nest;
4741 int i;
4742
667503dd
JB		 4743 ASSERT_RDEV_LOCK(rdev);
4744
362a415d
JB		 4745 if (WARN_ON(!req))
4746 return 0;
4747
4748 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4749 if (!nest)
4750 goto nla_put_failure;
4751 for (i = 0; i < req->n_ssids; i++)
4752 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
4753 nla_nest_end(msg, nest);
4754
4755 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4756 if (!nest)
4757 goto nla_put_failure;
4758 for (i = 0; i < req->n_channels; i++)
4759 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
4760 nla_nest_end(msg, nest);
4761
4762 if (req->ie)
4763 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
4764
4765 return 0;
4766 nla_put_failure:
4767 return -ENOBUFS;
4768}
4769
a538e2d5
JB		 4770static int nl80211_send_scan_msg(struct sk_buff *msg,
4771 struct cfg80211_registered_device *rdev,
4772 struct net_device *netdev,
4773 u32 pid, u32 seq, int flags,
4774 u32 cmd)
2a519311
JB		 4775{
4776 void *hdr;
4777
4778 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
4779 if (!hdr)
4780 return -1;
4781
b5850a7a 4782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 4783 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4784
362a415d
JB		 4785 /* ignore errors and send incomplete event anyway */
4786 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 4787
4788 return genlmsg_end(msg, hdr);
4789
4790 nla_put_failure:
4791 genlmsg_cancel(msg, hdr);
4792 return -EMSGSIZE;
4793}
4794
a538e2d5
JB		 4795void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
4796 struct net_device *netdev)
4797{
4798 struct sk_buff *msg;
4799
4800 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4801 if (!msg)
4802 return;
4803
4804 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4805 NL80211_CMD_TRIGGER_SCAN) < 0) {
4806 nlmsg_free(msg);
4807 return;
4808 }
4809
463d0183
JB		 4810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4811 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 4812}
4813
2a519311
JB		 4814void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
4815 struct net_device *netdev)
4816{
4817 struct sk_buff *msg;
4818
fd2120ca 4819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 4820 if (!msg)
4821 return;
4822
a538e2d5
JB		 4823 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4824 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 4825 nlmsg_free(msg);
4826 return;
4827 }
4828
463d0183
JB		 4829 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4830 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 4831}
4832
4833void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
4834 struct net_device *netdev)
4835{
4836 struct sk_buff *msg;
4837
fd2120ca 4838 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 4839 if (!msg)
4840 return;
4841
a538e2d5
JB		 4842 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4843 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 4844 nlmsg_free(msg);
4845 return;
4846 }
4847
463d0183
JB		 4848 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4849 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 4850}
4851
73d54c9e
LR		 4852/*
4853 * This can happen on global regulatory changes or device specific settings
4854 * based on custom world regulatory domains.
4855 */
4856void nl80211_send_reg_change_event(struct regulatory_request *request)
4857{
4858 struct sk_buff *msg;
4859 void *hdr;
4860
fd2120ca 4861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 4862 if (!msg)
4863 return;
4864
4865 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
4866 if (!hdr) {
4867 nlmsg_free(msg);
4868 return;
4869 }
4870
4871 /* Userspace can always count this one always being set */
4872 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
4873
4874 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
4875 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4876 NL80211_REGDOM_TYPE_WORLD);
4877 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
4878 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4879 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
4880 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
4881 request->intersect)
4882 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4883 NL80211_REGDOM_TYPE_INTERSECTION);
4884 else {
4885 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
4886 NL80211_REGDOM_TYPE_COUNTRY);
4887 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
4888 }
4889
4890 if (wiphy_idx_valid(request->wiphy_idx))
4891 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
4892
4893 if (genlmsg_end(msg, hdr) < 0) {
4894 nlmsg_free(msg);
4895 return;
4896 }
4897
bc43b28c 4898 rcu_read_lock();
463d0183 4899 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 4900 GFP_ATOMIC);
4901 rcu_read_unlock();
73d54c9e
LR		 4902
4903 return;
4904
4905nla_put_failure:
4906 genlmsg_cancel(msg, hdr);
4907 nlmsg_free(msg);
4908}
4909
6039f6d2
JM		 4910static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
4911 struct net_device *netdev,
4912 const u8 *buf, size_t len,
e6d6e342 4913 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 4914{
4915 struct sk_buff *msg;
4916 void *hdr;
4917
e6d6e342 4918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 4919 if (!msg)
4920 return;
4921
4922 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4923 if (!hdr) {
4924 nlmsg_free(msg);
4925 return;
4926 }
4927
4928 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4929 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4930 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
4931
4932 if (genlmsg_end(msg, hdr) < 0) {
4933 nlmsg_free(msg);
4934 return;
4935 }
4936
463d0183
JB		 4937 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4938 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 4939 return;
4940
4941 nla_put_failure:
4942 genlmsg_cancel(msg, hdr);
4943 nlmsg_free(msg);
4944}
4945
4946void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 4947 struct net_device *netdev, const u8 *buf,
4948 size_t len, gfp_t gfp)
6039f6d2
JM		 4949{
4950 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 4951 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 4952}
4953
4954void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
4955 struct net_device *netdev, const u8 *buf,
e6d6e342 4956 size_t len, gfp_t gfp)
6039f6d2 4957{
e6d6e342
JB		 4958 nl80211_send_mlme_event(rdev, netdev, buf, len,
4959 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 4960}
4961
53b46b84 4962void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 4963 struct net_device *netdev, const u8 *buf,
4964 size_t len, gfp_t gfp)
6039f6d2
JM		 4965{
4966 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 4967 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 4968}
4969
53b46b84
JM		 4970void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
4971 struct net_device *netdev, const u8 *buf,
e6d6e342 4972 size_t len, gfp_t gfp)
6039f6d2
JM		 4973{
4974 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 4975 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 4976}
4977
1b06bb40
LR		 4978static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
4979 struct net_device *netdev, int cmd,
e6d6e342 4980 const u8 *addr, gfp_t gfp)
1965c853
JM		 4981{
4982 struct sk_buff *msg;
4983 void *hdr;
4984
e6d6e342 4985 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 4986 if (!msg)
4987 return;
4988
4989 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
4990 if (!hdr) {
4991 nlmsg_free(msg);
4992 return;
4993 }
4994
4995 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4996 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4997 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
4998 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
4999
5000 if (genlmsg_end(msg, hdr) < 0) {
5001 nlmsg_free(msg);
5002 return;
5003 }
5004
463d0183
JB		 5005 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5006 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5007 return;
5008
5009 nla_put_failure:
5010 genlmsg_cancel(msg, hdr);
5011 nlmsg_free(msg);
5012}
5013
5014void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5015 struct net_device *netdev, const u8 *addr,
5016 gfp_t gfp)
1965c853
JM		 5017{
5018 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5019 addr, gfp);
1965c853
JM		 5020}
5021
5022void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5023 struct net_device *netdev, const u8 *addr,
5024 gfp_t gfp)
1965c853 5025{
e6d6e342
JB		 5026 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5027 addr, gfp);
1965c853
JM		 5028}
5029
b23aa676
SO		 5030void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5031 struct net_device *netdev, const u8 *bssid,
5032 const u8 *req_ie, size_t req_ie_len,
5033 const u8 *resp_ie, size_t resp_ie_len,
5034 u16 status, gfp_t gfp)
5035{
5036 struct sk_buff *msg;
5037 void *hdr;
5038
5039 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5040 if (!msg)
5041 return;
5042
5043 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5044 if (!hdr) {
5045 nlmsg_free(msg);
5046 return;
5047 }
5048
5049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5051 if (bssid)
5052 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5053 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5054 if (req_ie)
5055 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5056 if (resp_ie)
5057 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5058
5059 if (genlmsg_end(msg, hdr) < 0) {
5060 nlmsg_free(msg);
5061 return;
5062 }
5063
463d0183
JB		 5064 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5065 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5066 return;
5067
5068 nla_put_failure:
5069 genlmsg_cancel(msg, hdr);
5070 nlmsg_free(msg);
5071
5072}
5073
5074void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5075 struct net_device *netdev, const u8 *bssid,
5076 const u8 *req_ie, size_t req_ie_len,
5077 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5078{
5079 struct sk_buff *msg;
5080 void *hdr;
5081
5082 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5083 if (!msg)
5084 return;
5085
5086 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5087 if (!hdr) {
5088 nlmsg_free(msg);
5089 return;
5090 }
5091
5092 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5093 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5094 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5095 if (req_ie)
5096 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5097 if (resp_ie)
5098 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5099
5100 if (genlmsg_end(msg, hdr) < 0) {
5101 nlmsg_free(msg);
5102 return;
5103 }
5104
463d0183
JB		 5105 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5106 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5107 return;
5108
5109 nla_put_failure:
5110 genlmsg_cancel(msg, hdr);
5111 nlmsg_free(msg);
5112
5113}
5114
5115void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5116 struct net_device *netdev, u16 reason,
667503dd 5117 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5118{
5119 struct sk_buff *msg;
5120 void *hdr;
5121
667503dd 5122 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5123 if (!msg)
5124 return;
5125
5126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5127 if (!hdr) {
5128 nlmsg_free(msg);
5129 return;
5130 }
5131
5132 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5133 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5134 if (from_ap && reason)
5135 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5136 if (from_ap)
5137 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5138 if (ie)
5139 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5140
5141 if (genlmsg_end(msg, hdr) < 0) {
5142 nlmsg_free(msg);
5143 return;
5144 }
5145
463d0183
JB		 5146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5147 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5148 return;
5149
5150 nla_put_failure:
5151 genlmsg_cancel(msg, hdr);
5152 nlmsg_free(msg);
5153
5154}
5155
04a773ad
JB		 5156void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5157 struct net_device *netdev, const u8 *bssid,
5158 gfp_t gfp)
5159{
5160 struct sk_buff *msg;
5161 void *hdr;
5162
fd2120ca 5163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5164 if (!msg)
5165 return;
5166
5167 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5168 if (!hdr) {
5169 nlmsg_free(msg);
5170 return;
5171 }
5172
5173 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5174 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5175 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5176
5177 if (genlmsg_end(msg, hdr) < 0) {
5178 nlmsg_free(msg);
5179 return;
5180 }
5181
463d0183
JB		 5182 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5183 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5184 return;
5185
5186 nla_put_failure:
5187 genlmsg_cancel(msg, hdr);
5188 nlmsg_free(msg);
5189}
5190
a3b8b056
JM		 5191void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5192 struct net_device *netdev, const u8 *addr,
5193 enum nl80211_key_type key_type, int key_id,
e6d6e342 5194 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5195{
5196 struct sk_buff *msg;
5197 void *hdr;
5198
e6d6e342 5199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5200 if (!msg)
5201 return;
5202
5203 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5204 if (!hdr) {
5205 nlmsg_free(msg);
5206 return;
5207 }
5208
5209 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5210 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5211 if (addr)
5212 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5213 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5214 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5215 if (tsc)
5216 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5217
5218 if (genlmsg_end(msg, hdr) < 0) {
5219 nlmsg_free(msg);
5220 return;
5221 }
5222
463d0183
JB		 5223 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5224 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5225 return;
5226
5227 nla_put_failure:
5228 genlmsg_cancel(msg, hdr);
5229 nlmsg_free(msg);
5230}
5231
6bad8766
LR		 5232void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5233 struct ieee80211_channel *channel_before,
5234 struct ieee80211_channel *channel_after)
5235{
5236 struct sk_buff *msg;
5237 void *hdr;
5238 struct nlattr *nl_freq;
5239
fd2120ca 5240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5241 if (!msg)
5242 return;
5243
5244 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5245 if (!hdr) {
5246 nlmsg_free(msg);
5247 return;
5248 }
5249
5250 /*
5251 * Since we are applying the beacon hint to a wiphy we know its
5252 * wiphy_idx is valid
5253 */
5254 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5255
5256 /* Before */
5257 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5258 if (!nl_freq)
5259 goto nla_put_failure;
5260 if (nl80211_msg_put_channel(msg, channel_before))
5261 goto nla_put_failure;
5262 nla_nest_end(msg, nl_freq);
5263
5264 /* After */
5265 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5266 if (!nl_freq)
5267 goto nla_put_failure;
5268 if (nl80211_msg_put_channel(msg, channel_after))
5269 goto nla_put_failure;
5270 nla_nest_end(msg, nl_freq);
5271
5272 if (genlmsg_end(msg, hdr) < 0) {
5273 nlmsg_free(msg);
5274 return;
5275 }
5276
463d0183
JB		 5277 rcu_read_lock();
5278 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5279 GFP_ATOMIC);
5280 rcu_read_unlock();
6bad8766
LR		 5281
5282 return;
5283
5284nla_put_failure:
5285 genlmsg_cancel(msg, hdr);
5286 nlmsg_free(msg);
5287}
5288
9588bbd5
JM		 5289static void nl80211_send_remain_on_chan_event(
5290 int cmd, struct cfg80211_registered_device *rdev,
5291 struct net_device *netdev, u64 cookie,
5292 struct ieee80211_channel *chan,
5293 enum nl80211_channel_type channel_type,
5294 unsigned int duration, gfp_t gfp)
5295{
5296 struct sk_buff *msg;
5297 void *hdr;
5298
5299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5300 if (!msg)
5301 return;
5302
5303 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5304 if (!hdr) {
5305 nlmsg_free(msg);
5306 return;
5307 }
5308
5309 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5310 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5311 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5312 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5313 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5314
5315 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5316 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5317
5318 if (genlmsg_end(msg, hdr) < 0) {
5319 nlmsg_free(msg);
5320 return;
5321 }
5322
5323 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5324 nl80211_mlme_mcgrp.id, gfp);
5325 return;
5326
5327 nla_put_failure:
5328 genlmsg_cancel(msg, hdr);
5329 nlmsg_free(msg);
5330}
5331
5332void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5333 struct net_device *netdev, u64 cookie,
5334 struct ieee80211_channel *chan,
5335 enum nl80211_channel_type channel_type,
5336 unsigned int duration, gfp_t gfp)
5337{
5338 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5339 rdev, netdev, cookie, chan,
5340 channel_type, duration, gfp);
5341}
5342
5343void nl80211_send_remain_on_channel_cancel(
5344 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5345 u64 cookie, struct ieee80211_channel *chan,
5346 enum nl80211_channel_type channel_type, gfp_t gfp)
5347{
5348 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5349 rdev, netdev, cookie, chan,
5350 channel_type, 0, gfp);
5351}
5352
55682965
JB		 5353/* initialisation/exit functions */
5354
5355int nl80211_init(void)
5356{
0d63cbb5 5357 int err;
55682965 5358
0d63cbb5
MM		 5359 err = genl_register_family_with_ops(&nl80211_fam,
5360 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5361 if (err)
5362 return err;
5363
55682965
JB		 5364 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5365 if (err)
5366 goto err_out;
5367
2a519311
JB		 5368 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5369 if (err)
5370 goto err_out;
5371
73d54c9e
LR		 5372 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5373 if (err)
5374 goto err_out;
5375
6039f6d2
JM		 5376 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5377 if (err)
5378 goto err_out;
5379
aff89a9b
JB		 5380#ifdef CONFIG_NL80211_TESTMODE
5381 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5382 if (err)
5383 goto err_out;
5384#endif
5385
55682965
JB		 5386 return 0;
5387 err_out:
5388 genl_unregister_family(&nl80211_fam);
5389 return err;
5390}
5391
5392void nl80211_exit(void)
5393{
5394 genl_unregister_family(&nl80211_fam);
5395}
Clone of davem's net-next-2.6 tree