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ath9k: enable support for AR9100
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
4 * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
10#include <linux/mutex.h>
11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
17#include <net/genetlink.h>
18#include <net/cfg80211.h>
19#include "core.h"
20#include "nl80211.h"
b2e1b302 21#include "reg.h"
55682965
JB		 22
23/* the netlink family */
24static struct genl_family nl80211_fam = {
25 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
26 .name = "nl80211", /* have users key off the name instead */
27 .hdrsize = 0, /* no private header */
28 .version = 1, /* no particular meaning now */
29 .maxattr = NL80211_ATTR_MAX,
30};
31
32/* internal helper: get drv and dev */
bba95fef 33static int get_drv_dev_by_info_ifindex(struct nlattr **attrs,
55682965
JB		 34 struct cfg80211_registered_device **drv,
35 struct net_device **dev)
36{
37 int ifindex;
38
bba95fef 39 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 40 return -EINVAL;
41
bba95fef 42 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
55682965
JB		 43 *dev = dev_get_by_index(&init_net, ifindex);
44 if (!*dev)
45 return -ENODEV;
46
47 *drv = cfg80211_get_dev_from_ifindex(ifindex);
48 if (IS_ERR(*drv)) {
49 dev_put(*dev);
50 return PTR_ERR(*drv);
51 }
52
53 return 0;
54}
55
56/* policy for the attributes */
57static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
58 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
59 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
60 .len = BUS_ID_SIZE-1 },
31888487 61 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 62 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 63 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
55682965
JB		 64
65 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
66 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
67 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 68
69 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
70
71 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
72 .len = WLAN_MAX_KEY_LEN },
73 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
74 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
75 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
ed1b6cc7
JB		 76
77 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
78 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
79 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
80 .len = IEEE80211_MAX_DATA_LEN },
81 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
82 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 83 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
84 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
85 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
86 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
87 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 88 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 89 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 90 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 91 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
92 .len = IEEE80211_MAX_MESH_ID_LEN },
93 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 94
b2e1b302
LR		 95 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
96 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
97
9f1ba906
JM		 98 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
99 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
100 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 101 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
102 .len = NL80211_MAX_SUPP_RATES },
36aedc90 103
93da9cc1 104 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
105
36aedc90
JM		 106 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
107 .len = NL80211_HT_CAPABILITY_LEN },
55682965
JB		 108};
109
110/* message building helper */
111static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
112 int flags, u8 cmd)
113{
114 /* since there is no private header just add the generic one */
115 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
116}
117
118/* netlink command implementations */
119
120static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
121 struct cfg80211_registered_device *dev)
122{
123 void *hdr;
ee688b00
JB		 124 struct nlattr *nl_bands, *nl_band;
125 struct nlattr *nl_freqs, *nl_freq;
126 struct nlattr *nl_rates, *nl_rate;
f59ac048 127 struct nlattr *nl_modes;
ee688b00
JB		 128 enum ieee80211_band band;
129 struct ieee80211_channel *chan;
130 struct ieee80211_rate *rate;
131 int i;
f59ac048 132 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 133
134 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
135 if (!hdr)
136 return -1;
137
138 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
139 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
ee688b00 140
f59ac048
LR		 141 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
142 if (!nl_modes)
143 goto nla_put_failure;
144
145 i = 0;
146 while (ifmodes) {
147 if (ifmodes & 1)
148 NLA_PUT_FLAG(msg, i);
149 ifmodes >>= 1;
150 i++;
151 }
152
153 nla_nest_end(msg, nl_modes);
154
ee688b00
JB		 155 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
156 if (!nl_bands)
157 goto nla_put_failure;
158
159 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
160 if (!dev->wiphy.bands[band])
161 continue;
162
163 nl_band = nla_nest_start(msg, band);
164 if (!nl_band)
165 goto nla_put_failure;
166
d51626df
JB		 167 /* add HT info */
168 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
169 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
170 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
171 &dev->wiphy.bands[band]->ht_cap.mcs);
172 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
173 dev->wiphy.bands[band]->ht_cap.cap);
174 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
175 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
176 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
177 dev->wiphy.bands[band]->ht_cap.ampdu_density);
178 }
179
ee688b00
JB		 180 /* add frequencies */
181 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
182 if (!nl_freqs)
183 goto nla_put_failure;
184
185 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
186 nl_freq = nla_nest_start(msg, i);
187 if (!nl_freq)
188 goto nla_put_failure;
189
190 chan = &dev->wiphy.bands[band]->channels[i];
191 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
192 chan->center_freq);
193
194 if (chan->flags & IEEE80211_CHAN_DISABLED)
195 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
196 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
197 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
198 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
199 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
200 if (chan->flags & IEEE80211_CHAN_RADAR)
201 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
202
bf8c1ac6
JM		 203 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
204 DBM_TO_MBM(chan->max_power));
e2f367f2 205
ee688b00
JB		 206 nla_nest_end(msg, nl_freq);
207 }
208
209 nla_nest_end(msg, nl_freqs);
210
211 /* add bitrates */
212 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
213 if (!nl_rates)
214 goto nla_put_failure;
215
216 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
217 nl_rate = nla_nest_start(msg, i);
218 if (!nl_rate)
219 goto nla_put_failure;
220
221 rate = &dev->wiphy.bands[band]->bitrates[i];
222 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
223 rate->bitrate);
224 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
225 NLA_PUT_FLAG(msg,
226 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
227
228 nla_nest_end(msg, nl_rate);
229 }
230
231 nla_nest_end(msg, nl_rates);
232
233 nla_nest_end(msg, nl_band);
234 }
235 nla_nest_end(msg, nl_bands);
236
55682965
JB		 237 return genlmsg_end(msg, hdr);
238
239 nla_put_failure:
bc3ed28c
TG		 240 genlmsg_cancel(msg, hdr);
241 return -EMSGSIZE;
55682965
JB		 242}
243
244static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
245{
246 int idx = 0;
247 int start = cb->args[0];
248 struct cfg80211_registered_device *dev;
249
250 mutex_lock(&cfg80211_drv_mutex);
251 list_for_each_entry(dev, &cfg80211_drv_list, list) {
b4637271 252 if (++idx <= start)
55682965
JB		 253 continue;
254 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
255 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 256 dev) < 0) {
257 idx--;
55682965 258 break;
b4637271 259 }
55682965
JB		 260 }
261 mutex_unlock(&cfg80211_drv_mutex);
262
263 cb->args[0] = idx;
264
265 return skb->len;
266}
267
268static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
269{
270 struct sk_buff *msg;
271 struct cfg80211_registered_device *dev;
272
273 dev = cfg80211_get_dev_from_info(info);
274 if (IS_ERR(dev))
275 return PTR_ERR(dev);
276
277 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
278 if (!msg)
279 goto out_err;
280
281 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
282 goto out_free;
283
284 cfg80211_put_dev(dev);
285
286 return genlmsg_unicast(msg, info->snd_pid);
287
288 out_free:
289 nlmsg_free(msg);
290 out_err:
291 cfg80211_put_dev(dev);
292 return -ENOBUFS;
293}
294
31888487
JM		 295static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
296 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
297 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
298 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
299 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
300 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
301};
302
303static int parse_txq_params(struct nlattr *tb[],
304 struct ieee80211_txq_params *txq_params)
305{
306 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
307 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
308 !tb[NL80211_TXQ_ATTR_AIFS])
309 return -EINVAL;
310
311 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
312 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
313 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
314 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
315 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
316
317 return 0;
318}
319
55682965
JB		 320static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
321{
322 struct cfg80211_registered_device *rdev;
31888487
JM		 323 int result = 0, rem_txq_params = 0;
324 struct nlattr *nl_txq_params;
55682965
JB		 325
326 rdev = cfg80211_get_dev_from_info(info);
327 if (IS_ERR(rdev))
328 return PTR_ERR(rdev);
329
31888487
JM		 330 if (info->attrs[NL80211_ATTR_WIPHY_NAME]) {
331 result = cfg80211_dev_rename(
332 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
333 if (result)
334 goto bad_res;
335 }
336
337 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
338 struct ieee80211_txq_params txq_params;
339 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
340
341 if (!rdev->ops->set_txq_params) {
342 result = -EOPNOTSUPP;
343 goto bad_res;
344 }
345
346 nla_for_each_nested(nl_txq_params,
347 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
348 rem_txq_params) {
349 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
350 nla_data(nl_txq_params),
351 nla_len(nl_txq_params),
352 txq_params_policy);
353 result = parse_txq_params(tb, &txq_params);
354 if (result)
355 goto bad_res;
356
357 result = rdev->ops->set_txq_params(&rdev->wiphy,
358 &txq_params);
359 if (result)
360 goto bad_res;
361 }
362 }
55682965 363
72bdcf34 364 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
094d05dc 365 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
72bdcf34 366 struct ieee80211_channel *chan;
306d6112 367 struct ieee80211_sta_ht_cap *ht_cap;
72bdcf34
JM		 368 u32 freq, sec_freq;
369
370 if (!rdev->ops->set_channel) {
371 result = -EOPNOTSUPP;
372 goto bad_res;
373 }
374
306d6112
JB		 375 result = -EINVAL;
376
094d05dc
S		 377 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
378 channel_type = nla_get_u32(info->attrs[
379 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
380 if (channel_type != NL80211_CHAN_NO_HT &&
381 channel_type != NL80211_CHAN_HT20 &&
382 channel_type != NL80211_CHAN_HT40PLUS &&
383 channel_type != NL80211_CHAN_HT40MINUS)
72bdcf34 384 goto bad_res;
72bdcf34
JM		 385 }
386
387 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
388 chan = ieee80211_get_channel(&rdev->wiphy, freq);
306d6112
JB		 389
390 /* Primary channel not allowed */
391 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
72bdcf34 392 goto bad_res;
306d6112 393
094d05dc 394 if (channel_type == NL80211_CHAN_HT40MINUS)
72bdcf34 395 sec_freq = freq - 20;
094d05dc 396 else if (channel_type == NL80211_CHAN_HT40PLUS)
72bdcf34
JM		 397 sec_freq = freq + 20;
398 else
399 sec_freq = 0;
400
306d6112
JB		 401 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
402
403 /* no HT capabilities */
094d05dc 404 if (channel_type != NL80211_CHAN_NO_HT &&
306d6112
JB		 405 !ht_cap->ht_supported)
406 goto bad_res;
407
72bdcf34
JM		 408 if (sec_freq) {
409 struct ieee80211_channel *schan;
306d6112
JB		 410
411 /* no 40 MHz capabilities */
412 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
413 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
414 goto bad_res;
415
72bdcf34 416 schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
306d6112
JB		 417
418 /* Secondary channel not allowed */
419 if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
72bdcf34 420 goto bad_res;
72bdcf34
JM		 421 }
422
423 result = rdev->ops->set_channel(&rdev->wiphy, chan,
094d05dc 424 channel_type);
72bdcf34
JM		 425 if (result)
426 goto bad_res;
427 }
428
429
306d6112 430 bad_res:
55682965
JB		 431 cfg80211_put_dev(rdev);
432 return result;
433}
434
435
436static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
437 struct net_device *dev)
438{
439 void *hdr;
440
441 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
442 if (!hdr)
443 return -1;
444
445 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
446 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 447 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
55682965
JB		 448 return genlmsg_end(msg, hdr);
449
450 nla_put_failure:
bc3ed28c
TG		 451 genlmsg_cancel(msg, hdr);
452 return -EMSGSIZE;
55682965
JB		 453}
454
455static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
456{
457 int wp_idx = 0;
458 int if_idx = 0;
459 int wp_start = cb->args[0];
460 int if_start = cb->args[1];
461 struct cfg80211_registered_device *dev;
462 struct wireless_dev *wdev;
463
464 mutex_lock(&cfg80211_drv_mutex);
465 list_for_each_entry(dev, &cfg80211_drv_list, list) {
bba95fef
JB		 466 if (wp_idx < wp_start) {
467 wp_idx++;
55682965 468 continue;
bba95fef 469 }
55682965
JB		 470 if_idx = 0;
471
472 mutex_lock(&dev->devlist_mtx);
473 list_for_each_entry(wdev, &dev->netdev_list, list) {
bba95fef
JB		 474 if (if_idx < if_start) {
475 if_idx++;
55682965 476 continue;
bba95fef 477 }
55682965
JB		 478 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
479 cb->nlh->nlmsg_seq, NLM_F_MULTI,
bba95fef
JB		 480 wdev->netdev) < 0) {
481 mutex_unlock(&dev->devlist_mtx);
482 goto out;
483 }
484 if_idx++;
55682965
JB		 485 }
486 mutex_unlock(&dev->devlist_mtx);
bba95fef
JB		 487
488 wp_idx++;
55682965 489 }
bba95fef 490 out:
55682965
JB		 491 mutex_unlock(&cfg80211_drv_mutex);
492
493 cb->args[0] = wp_idx;
494 cb->args[1] = if_idx;
495
496 return skb->len;
497}
498
499static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
500{
501 struct sk_buff *msg;
502 struct cfg80211_registered_device *dev;
503 struct net_device *netdev;
504 int err;
505
bba95fef 506 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
55682965
JB		 507 if (err)
508 return err;
509
510 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
511 if (!msg)
512 goto out_err;
513
514 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
515 goto out_free;
516
517 dev_put(netdev);
518 cfg80211_put_dev(dev);
519
520 return genlmsg_unicast(msg, info->snd_pid);
521
522 out_free:
523 nlmsg_free(msg);
524 out_err:
525 dev_put(netdev);
526 cfg80211_put_dev(dev);
527 return -ENOBUFS;
528}
529
66f7ac50
MW		 530static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
531 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
532 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
533 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
534 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
535 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
536};
537
538static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
539{
540 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
541 int flag;
542
543 *mntrflags = 0;
544
545 if (!nla)
546 return -EINVAL;
547
548 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
549 nla, mntr_flags_policy))
550 return -EINVAL;
551
552 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
553 if (flags[flag])
554 *mntrflags |= (1<<flag);
555
556 return 0;
557}
558
55682965
JB		 559static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
560{
561 struct cfg80211_registered_device *drv;
2ec600d6 562 struct vif_params params;
55682965
JB		 563 int err, ifindex;
564 enum nl80211_iftype type;
565 struct net_device *dev;
92ffe055 566 u32 _flags, *flags = NULL;
55682965 567
2ec600d6
LCC		 568 memset(&params, 0, sizeof(params));
569
bba95fef 570 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 571 if (err)
572 return err;
573 ifindex = dev->ifindex;
723b038d 574 type = dev->ieee80211_ptr->iftype;
55682965
JB		 575 dev_put(dev);
576
723b038d
JB		 577 err = -EINVAL;
578 if (info->attrs[NL80211_ATTR_IFTYPE]) {
579 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
580 if (type > NL80211_IFTYPE_MAX)
581 goto unlock;
582 }
583
f59ac048
LR		 584 if (!drv->ops->change_virtual_intf ||
585 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 586 err = -EOPNOTSUPP;
587 goto unlock;
588 }
589
92ffe055
JB		 590 if (info->attrs[NL80211_ATTR_MESH_ID]) {
591 if (type != NL80211_IFTYPE_MESH_POINT) {
592 err = -EINVAL;
593 goto unlock;
594 }
2ec600d6
LCC		 595 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
596 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
597 }
598
92ffe055
JB		 599 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
600 if (type != NL80211_IFTYPE_MONITOR) {
601 err = -EINVAL;
602 goto unlock;
603 }
604 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
605 &_flags);
606 if (!err)
607 flags = &_flags;
608 }
55682965 609 rtnl_lock();
66f7ac50 610 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
92ffe055 611 type, flags, &params);
60719ffd
JB		 612
613 dev = __dev_get_by_index(&init_net, ifindex);
614 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
615
55682965
JB		 616 rtnl_unlock();
617
618 unlock:
619 cfg80211_put_dev(drv);
620 return err;
621}
622
623static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
624{
625 struct cfg80211_registered_device *drv;
2ec600d6 626 struct vif_params params;
55682965
JB		 627 int err;
628 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 629 u32 flags;
55682965 630
2ec600d6
LCC		 631 memset(&params, 0, sizeof(params));
632
55682965
JB		 633 if (!info->attrs[NL80211_ATTR_IFNAME])
634 return -EINVAL;
635
636 if (info->attrs[NL80211_ATTR_IFTYPE]) {
637 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
638 if (type > NL80211_IFTYPE_MAX)
639 return -EINVAL;
640 }
641
642 drv = cfg80211_get_dev_from_info(info);
643 if (IS_ERR(drv))
644 return PTR_ERR(drv);
645
f59ac048
LR		 646 if (!drv->ops->add_virtual_intf ||
647 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 648 err = -EOPNOTSUPP;
649 goto unlock;
650 }
651
2ec600d6
LCC		 652 if (type == NL80211_IFTYPE_MESH_POINT &&
653 info->attrs[NL80211_ATTR_MESH_ID]) {
654 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
655 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
656 }
657
55682965 658 rtnl_lock();
66f7ac50
MW		 659 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
660 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
661 &flags);
55682965 662 err = drv->ops->add_virtual_intf(&drv->wiphy,
66f7ac50 663 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 664 type, err ? NULL : &flags, &params);
55682965
JB		 665 rtnl_unlock();
666
2ec600d6 667
55682965
JB		 668 unlock:
669 cfg80211_put_dev(drv);
670 return err;
671}
672
673static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
674{
675 struct cfg80211_registered_device *drv;
676 int ifindex, err;
677 struct net_device *dev;
678
bba95fef 679 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 680 if (err)
681 return err;
682 ifindex = dev->ifindex;
683 dev_put(dev);
684
685 if (!drv->ops->del_virtual_intf) {
686 err = -EOPNOTSUPP;
687 goto out;
688 }
689
690 rtnl_lock();
691 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
692 rtnl_unlock();
693
694 out:
695 cfg80211_put_dev(drv);
696 return err;
697}
698
41ade00f
JB		 699struct get_key_cookie {
700 struct sk_buff *msg;
701 int error;
702};
703
704static void get_key_callback(void *c, struct key_params *params)
705{
706 struct get_key_cookie *cookie = c;
707
708 if (params->key)
709 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
710 params->key_len, params->key);
711
712 if (params->seq)
713 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
714 params->seq_len, params->seq);
715
716 if (params->cipher)
717 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
718 params->cipher);
719
720 return;
721 nla_put_failure:
722 cookie->error = 1;
723}
724
725static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
726{
727 struct cfg80211_registered_device *drv;
728 int err;
729 struct net_device *dev;
730 u8 key_idx = 0;
731 u8 *mac_addr = NULL;
732 struct get_key_cookie cookie = {
733 .error = 0,
734 };
735 void *hdr;
736 struct sk_buff *msg;
737
738 if (info->attrs[NL80211_ATTR_KEY_IDX])
739 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
740
3cfcf6ac 741 if (key_idx > 5)
41ade00f
JB		 742 return -EINVAL;
743
744 if (info->attrs[NL80211_ATTR_MAC])
745 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
746
bba95fef 747 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 748 if (err)
749 return err;
750
751 if (!drv->ops->get_key) {
752 err = -EOPNOTSUPP;
753 goto out;
754 }
755
756 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
757 if (!msg) {
758 err = -ENOMEM;
759 goto out;
760 }
761
762 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
763 NL80211_CMD_NEW_KEY);
764
765 if (IS_ERR(hdr)) {
766 err = PTR_ERR(hdr);
767 goto out;
768 }
769
770 cookie.msg = msg;
771
772 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
773 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
774 if (mac_addr)
775 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
776
777 rtnl_lock();
778 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
779 &cookie, get_key_callback);
780 rtnl_unlock();
781
782 if (err)
783 goto out;
784
785 if (cookie.error)
786 goto nla_put_failure;
787
788 genlmsg_end(msg, hdr);
789 err = genlmsg_unicast(msg, info->snd_pid);
790 goto out;
791
792 nla_put_failure:
793 err = -ENOBUFS;
794 nlmsg_free(msg);
795 out:
796 cfg80211_put_dev(drv);
797 dev_put(dev);
798 return err;
799}
800
801static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
802{
803 struct cfg80211_registered_device *drv;
804 int err;
805 struct net_device *dev;
806 u8 key_idx;
3cfcf6ac
JM		 807 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
808 u8 key_index);
41ade00f
JB		 809
810 if (!info->attrs[NL80211_ATTR_KEY_IDX])
811 return -EINVAL;
812
813 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
814
3cfcf6ac
JM		 815 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
816 if (key_idx < 4 || key_idx > 5)
817 return -EINVAL;
818 } else if (key_idx > 3)
41ade00f
JB		 819 return -EINVAL;
820
821 /* currently only support setting default key */
3cfcf6ac
JM		 822 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
823 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
41ade00f
JB		 824 return -EINVAL;
825
bba95fef 826 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 827 if (err)
828 return err;
829
3cfcf6ac
JM		 830 if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
831 func = drv->ops->set_default_key;
832 else
833 func = drv->ops->set_default_mgmt_key;
834
835 if (!func) {
41ade00f
JB		 836 err = -EOPNOTSUPP;
837 goto out;
838 }
839
840 rtnl_lock();
3cfcf6ac 841 err = func(&drv->wiphy, dev, key_idx);
41ade00f
JB		 842 rtnl_unlock();
843
844 out:
845 cfg80211_put_dev(drv);
846 dev_put(dev);
847 return err;
848}
849
850static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
851{
852 struct cfg80211_registered_device *drv;
853 int err;
854 struct net_device *dev;
855 struct key_params params;
856 u8 key_idx = 0;
857 u8 *mac_addr = NULL;
858
859 memset(&params, 0, sizeof(params));
860
861 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
862 return -EINVAL;
863
864 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
865 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
866 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
867 }
868
869 if (info->attrs[NL80211_ATTR_KEY_IDX])
870 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
871
872 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
873
874 if (info->attrs[NL80211_ATTR_MAC])
875 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
876
3cfcf6ac 877 if (key_idx > 5)
41ade00f
JB		 878 return -EINVAL;
879
880 /*
881 * Disallow pairwise keys with non-zero index unless it's WEP
882 * (because current deployments use pairwise WEP keys with
883 * non-zero indizes but 802.11i clearly specifies to use zero)
884 */
885 if (mac_addr && key_idx &&
886 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
887 params.cipher != WLAN_CIPHER_SUITE_WEP104)
888 return -EINVAL;
889
890 /* TODO: add definitions for the lengths to linux/ieee80211.h */
891 switch (params.cipher) {
892 case WLAN_CIPHER_SUITE_WEP40:
893 if (params.key_len != 5)
894 return -EINVAL;
895 break;
896 case WLAN_CIPHER_SUITE_TKIP:
897 if (params.key_len != 32)
898 return -EINVAL;
899 break;
900 case WLAN_CIPHER_SUITE_CCMP:
901 if (params.key_len != 16)
902 return -EINVAL;
903 break;
904 case WLAN_CIPHER_SUITE_WEP104:
905 if (params.key_len != 13)
906 return -EINVAL;
907 break;
3cfcf6ac
JM		 908 case WLAN_CIPHER_SUITE_AES_CMAC:
909 if (params.key_len != 16)
910 return -EINVAL;
911 break;
41ade00f
JB		 912 default:
913 return -EINVAL;
914 }
915
bba95fef 916 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 917 if (err)
918 return err;
919
920 if (!drv->ops->add_key) {
921 err = -EOPNOTSUPP;
922 goto out;
923 }
924
925 rtnl_lock();
926 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
927 rtnl_unlock();
928
929 out:
930 cfg80211_put_dev(drv);
931 dev_put(dev);
932 return err;
933}
934
935static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
936{
937 struct cfg80211_registered_device *drv;
938 int err;
939 struct net_device *dev;
940 u8 key_idx = 0;
941 u8 *mac_addr = NULL;
942
943 if (info->attrs[NL80211_ATTR_KEY_IDX])
944 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
945
3cfcf6ac 946 if (key_idx > 5)
41ade00f
JB		 947 return -EINVAL;
948
949 if (info->attrs[NL80211_ATTR_MAC])
950 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
951
bba95fef 952 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 953 if (err)
954 return err;
955
956 if (!drv->ops->del_key) {
957 err = -EOPNOTSUPP;
958 goto out;
959 }
960
961 rtnl_lock();
962 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
963 rtnl_unlock();
964
965 out:
966 cfg80211_put_dev(drv);
967 dev_put(dev);
968 return err;
969}
970
ed1b6cc7
JB		 971static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
972{
973 int (*call)(struct wiphy *wiphy, struct net_device *dev,
974 struct beacon_parameters *info);
975 struct cfg80211_registered_device *drv;
976 int err;
977 struct net_device *dev;
978 struct beacon_parameters params;
979 int haveinfo = 0;
980
bba95fef 981 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 982 if (err)
983 return err;
984
985 switch (info->genlhdr->cmd) {
986 case NL80211_CMD_NEW_BEACON:
987 /* these are required for NEW_BEACON */
988 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
989 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
990 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
991 err = -EINVAL;
992 goto out;
993 }
994
995 call = drv->ops->add_beacon;
996 break;
997 case NL80211_CMD_SET_BEACON:
998 call = drv->ops->set_beacon;
999 break;
1000 default:
1001 WARN_ON(1);
1002 err = -EOPNOTSUPP;
1003 goto out;
1004 }
1005
1006 if (!call) {
1007 err = -EOPNOTSUPP;
1008 goto out;
1009 }
1010
1011 memset(&params, 0, sizeof(params));
1012
1013 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1014 params.interval =
1015 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1016 haveinfo = 1;
1017 }
1018
1019 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1020 params.dtim_period =
1021 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1022 haveinfo = 1;
1023 }
1024
1025 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1026 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1027 params.head_len =
1028 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1029 haveinfo = 1;
1030 }
1031
1032 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1033 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1034 params.tail_len =
1035 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1036 haveinfo = 1;
1037 }
1038
1039 if (!haveinfo) {
1040 err = -EINVAL;
1041 goto out;
1042 }
1043
1044 rtnl_lock();
1045 err = call(&drv->wiphy, dev, &params);
1046 rtnl_unlock();
1047
1048 out:
1049 cfg80211_put_dev(drv);
1050 dev_put(dev);
1051 return err;
1052}
1053
1054static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1055{
1056 struct cfg80211_registered_device *drv;
1057 int err;
1058 struct net_device *dev;
1059
bba95fef 1060 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 1061 if (err)
1062 return err;
1063
1064 if (!drv->ops->del_beacon) {
1065 err = -EOPNOTSUPP;
1066 goto out;
1067 }
1068
1069 rtnl_lock();
1070 err = drv->ops->del_beacon(&drv->wiphy, dev);
1071 rtnl_unlock();
1072
1073 out:
1074 cfg80211_put_dev(drv);
1075 dev_put(dev);
1076 return err;
1077}
1078
5727ef1b
JB		 1079static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1080 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1081 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1082 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1083};
1084
1085static int parse_station_flags(struct nlattr *nla, u32 *staflags)
1086{
1087 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1088 int flag;
1089
1090 *staflags = 0;
1091
1092 if (!nla)
1093 return 0;
1094
1095 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1096 nla, sta_flags_policy))
1097 return -EINVAL;
1098
1099 *staflags = STATION_FLAG_CHANGED;
1100
1101 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1102 if (flags[flag])
1103 *staflags |= (1<<flag);
1104
1105 return 0;
1106}
1107
420e7fab
HR		 1108static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1109{
1110 int modulation, streams, bitrate;
1111
1112 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1113 return rate->legacy;
1114
1115 /* the formula below does only work for MCS values smaller than 32 */
1116 if (rate->mcs >= 32)
1117 return 0;
1118
1119 modulation = rate->mcs & 7;
1120 streams = (rate->mcs >> 3) + 1;
1121
1122 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1123 13500000 : 6500000;
1124
1125 if (modulation < 4)
1126 bitrate *= (modulation + 1);
1127 else if (modulation == 4)
1128 bitrate *= (modulation + 2);
1129 else
1130 bitrate *= (modulation + 3);
1131
1132 bitrate *= streams;
1133
1134 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1135 bitrate = (bitrate / 9) * 10;
1136
1137 /* do NOT round down here */
1138 return (bitrate + 50000) / 100000;
1139}
1140
fd5b74dc
JB		 1141static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1142 int flags, struct net_device *dev,
2ec600d6 1143 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1144{
1145 void *hdr;
420e7fab
HR		 1146 struct nlattr *sinfoattr, *txrate;
1147 u16 bitrate;
fd5b74dc
JB		 1148
1149 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1150 if (!hdr)
1151 return -1;
1152
1153 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1154 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1155
2ec600d6
LCC		 1156 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1157 if (!sinfoattr)
fd5b74dc 1158 goto nla_put_failure;
2ec600d6
LCC		 1159 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1160 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1161 sinfo->inactive_time);
1162 if (sinfo->filled & STATION_INFO_RX_BYTES)
1163 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1164 sinfo->rx_bytes);
1165 if (sinfo->filled & STATION_INFO_TX_BYTES)
1166 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1167 sinfo->tx_bytes);
1168 if (sinfo->filled & STATION_INFO_LLID)
1169 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1170 sinfo->llid);
1171 if (sinfo->filled & STATION_INFO_PLID)
1172 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1173 sinfo->plid);
1174 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1175 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1176 sinfo->plink_state);
420e7fab
HR		 1177 if (sinfo->filled & STATION_INFO_SIGNAL)
1178 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1179 sinfo->signal);
1180 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1181 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1182 if (!txrate)
1183 goto nla_put_failure;
1184
1185 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1186 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1187 if (bitrate > 0)
1188 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1189
420e7fab
HR		 1190 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1191 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1192 sinfo->txrate.mcs);
1193 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1194 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1195 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1196 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1197
1198 nla_nest_end(msg, txrate);
1199 }
2ec600d6 1200 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1201
1202 return genlmsg_end(msg, hdr);
1203
1204 nla_put_failure:
bc3ed28c
TG		 1205 genlmsg_cancel(msg, hdr);
1206 return -EMSGSIZE;
fd5b74dc
JB		 1207}
1208
2ec600d6 1209static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1210 struct netlink_callback *cb)
2ec600d6 1211{
2ec600d6
LCC		 1212 struct station_info sinfo;
1213 struct cfg80211_registered_device *dev;
bba95fef 1214 struct net_device *netdev;
2ec600d6 1215 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 1216 int ifidx = cb->args[0];
1217 int sta_idx = cb->args[1];
2ec600d6 1218 int err;
2ec600d6 1219
bba95fef
JB		 1220 if (!ifidx) {
1221 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1222 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1223 nl80211_policy);
1224 if (err)
1225 return err;
2ec600d6 1226
bba95fef
JB		 1227 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1228 return -EINVAL;
2ec600d6 1229
bba95fef
JB		 1230 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1231 if (!ifidx)
1232 return -EINVAL;
2ec600d6 1233 }
2ec600d6 1234
bba95fef
JB		 1235 netdev = dev_get_by_index(&init_net, ifidx);
1236 if (!netdev)
1237 return -ENODEV;
2ec600d6 1238
bba95fef
JB		 1239 dev = cfg80211_get_dev_from_ifindex(ifidx);
1240 if (IS_ERR(dev)) {
1241 err = PTR_ERR(dev);
1242 goto out_put_netdev;
1243 }
1244
1245 if (!dev->ops->dump_station) {
1246 err = -ENOSYS;
1247 goto out_err;
1248 }
1249
1250 rtnl_lock();
1251
1252 while (1) {
1253 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1254 mac_addr, &sinfo);
1255 if (err == -ENOENT)
1256 break;
1257 if (err)
1258 goto out_err_rtnl;
1259
1260 if (nl80211_send_station(skb,
1261 NETLINK_CB(cb->skb).pid,
1262 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1263 netdev, mac_addr,
1264 &sinfo) < 0)
1265 goto out;
1266
1267 sta_idx++;
1268 }
1269
1270
1271 out:
1272 cb->args[1] = sta_idx;
1273 err = skb->len;
1274 out_err_rtnl:
1275 rtnl_unlock();
1276 out_err:
1277 cfg80211_put_dev(dev);
1278 out_put_netdev:
1279 dev_put(netdev);
1280
1281 return err;
2ec600d6 1282}
fd5b74dc 1283
5727ef1b
JB		 1284static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1285{
fd5b74dc
JB		 1286 struct cfg80211_registered_device *drv;
1287 int err;
1288 struct net_device *dev;
2ec600d6 1289 struct station_info sinfo;
fd5b74dc
JB		 1290 struct sk_buff *msg;
1291 u8 *mac_addr = NULL;
1292
2ec600d6 1293 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1294
1295 if (!info->attrs[NL80211_ATTR_MAC])
1296 return -EINVAL;
1297
1298 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1299
bba95fef 1300 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
fd5b74dc
JB		 1301 if (err)
1302 return err;
1303
1304 if (!drv->ops->get_station) {
1305 err = -EOPNOTSUPP;
1306 goto out;
1307 }
1308
1309 rtnl_lock();
2ec600d6 1310 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
fd5b74dc
JB		 1311 rtnl_unlock();
1312
2ec600d6
LCC		 1313 if (err)
1314 goto out;
1315
fd5b74dc
JB		 1316 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1317 if (!msg)
1318 goto out;
1319
1320 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1321 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1322 goto out_free;
1323
1324 err = genlmsg_unicast(msg, info->snd_pid);
1325 goto out;
1326
1327 out_free:
1328 nlmsg_free(msg);
1329
1330 out:
1331 cfg80211_put_dev(drv);
1332 dev_put(dev);
1333 return err;
5727ef1b
JB		 1334}
1335
1336/*
1337 * Get vlan interface making sure it is on the right wiphy.
1338 */
1339static int get_vlan(struct nlattr *vlanattr,
1340 struct cfg80211_registered_device *rdev,
1341 struct net_device **vlan)
1342{
1343 *vlan = NULL;
1344
1345 if (vlanattr) {
1346 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1347 if (!*vlan)
1348 return -ENODEV;
1349 if (!(*vlan)->ieee80211_ptr)
1350 return -EINVAL;
1351 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1352 return -EINVAL;
1353 }
1354 return 0;
1355}
1356
1357static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1358{
1359 struct cfg80211_registered_device *drv;
1360 int err;
1361 struct net_device *dev;
1362 struct station_parameters params;
1363 u8 *mac_addr = NULL;
1364
1365 memset(&params, 0, sizeof(params));
1366
1367 params.listen_interval = -1;
1368
1369 if (info->attrs[NL80211_ATTR_STA_AID])
1370 return -EINVAL;
1371
1372 if (!info->attrs[NL80211_ATTR_MAC])
1373 return -EINVAL;
1374
1375 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1376
1377 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1378 params.supported_rates =
1379 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1380 params.supported_rates_len =
1381 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1382 }
1383
1384 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1385 params.listen_interval =
1386 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1387
36aedc90
JM		 1388 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1389 params.ht_capa =
1390 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1391
5727ef1b
JB		 1392 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1393 &params.station_flags))
1394 return -EINVAL;
1395
2ec600d6
LCC		 1396 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1397 params.plink_action =
1398 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1399
bba95fef 1400 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1401 if (err)
1402 return err;
1403
1404 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1405 if (err)
1406 goto out;
1407
1408 if (!drv->ops->change_station) {
1409 err = -EOPNOTSUPP;
1410 goto out;
1411 }
1412
1413 rtnl_lock();
1414 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
1415 rtnl_unlock();
1416
1417 out:
1418 if (params.vlan)
1419 dev_put(params.vlan);
1420 cfg80211_put_dev(drv);
1421 dev_put(dev);
1422 return err;
1423}
1424
1425static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1426{
1427 struct cfg80211_registered_device *drv;
1428 int err;
1429 struct net_device *dev;
1430 struct station_parameters params;
1431 u8 *mac_addr = NULL;
1432
1433 memset(&params, 0, sizeof(params));
1434
1435 if (!info->attrs[NL80211_ATTR_MAC])
1436 return -EINVAL;
1437
1438 if (!info->attrs[NL80211_ATTR_STA_AID])
1439 return -EINVAL;
1440
1441 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1442 return -EINVAL;
1443
1444 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1445 return -EINVAL;
1446
1447 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1448 params.supported_rates =
1449 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1450 params.supported_rates_len =
1451 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1452 params.listen_interval =
1453 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
16f2e85d 1454 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
36aedc90
JM		 1455 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1456 params.ht_capa =
1457 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b
JB		 1458
1459 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1460 &params.station_flags))
1461 return -EINVAL;
1462
bba95fef 1463 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1464 if (err)
1465 return err;
1466
1467 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1468 if (err)
1469 goto out;
1470
1471 if (!drv->ops->add_station) {
1472 err = -EOPNOTSUPP;
1473 goto out;
1474 }
1475
1476 rtnl_lock();
1477 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
1478 rtnl_unlock();
1479
1480 out:
1481 if (params.vlan)
1482 dev_put(params.vlan);
1483 cfg80211_put_dev(drv);
1484 dev_put(dev);
1485 return err;
1486}
1487
1488static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1489{
1490 struct cfg80211_registered_device *drv;
1491 int err;
1492 struct net_device *dev;
1493 u8 *mac_addr = NULL;
1494
1495 if (info->attrs[NL80211_ATTR_MAC])
1496 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1497
bba95fef 1498 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1499 if (err)
1500 return err;
1501
1502 if (!drv->ops->del_station) {
1503 err = -EOPNOTSUPP;
1504 goto out;
1505 }
1506
1507 rtnl_lock();
1508 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1509 rtnl_unlock();
1510
1511 out:
1512 cfg80211_put_dev(drv);
1513 dev_put(dev);
1514 return err;
1515}
1516
2ec600d6
LCC		 1517static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1518 int flags, struct net_device *dev,
1519 u8 *dst, u8 *next_hop,
1520 struct mpath_info *pinfo)
1521{
1522 void *hdr;
1523 struct nlattr *pinfoattr;
1524
1525 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1526 if (!hdr)
1527 return -1;
1528
1529 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1530 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1531 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1532
1533 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1534 if (!pinfoattr)
1535 goto nla_put_failure;
1536 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1537 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1538 pinfo->frame_qlen);
1539 if (pinfo->filled & MPATH_INFO_DSN)
1540 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1541 pinfo->dsn);
1542 if (pinfo->filled & MPATH_INFO_METRIC)
1543 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1544 pinfo->metric);
1545 if (pinfo->filled & MPATH_INFO_EXPTIME)
1546 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1547 pinfo->exptime);
1548 if (pinfo->filled & MPATH_INFO_FLAGS)
1549 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1550 pinfo->flags);
1551 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1552 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1553 pinfo->discovery_timeout);
1554 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1555 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1556 pinfo->discovery_retries);
1557
1558 nla_nest_end(msg, pinfoattr);
1559
1560 return genlmsg_end(msg, hdr);
1561
1562 nla_put_failure:
bc3ed28c
TG		 1563 genlmsg_cancel(msg, hdr);
1564 return -EMSGSIZE;
2ec600d6
LCC		 1565}
1566
1567static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 1568 struct netlink_callback *cb)
2ec600d6 1569{
2ec600d6
LCC		 1570 struct mpath_info pinfo;
1571 struct cfg80211_registered_device *dev;
bba95fef 1572 struct net_device *netdev;
2ec600d6
LCC		 1573 u8 dst[ETH_ALEN];
1574 u8 next_hop[ETH_ALEN];
bba95fef
JB		 1575 int ifidx = cb->args[0];
1576 int path_idx = cb->args[1];
2ec600d6 1577 int err;
2ec600d6 1578
bba95fef
JB		 1579 if (!ifidx) {
1580 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1581 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1582 nl80211_policy);
1583 if (err)
1584 return err;
1585
1586 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1587 return -EINVAL;
1588
1589 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1590 if (!ifidx)
1591 return -EINVAL;
1592 }
1593
1594 netdev = dev_get_by_index(&init_net, ifidx);
1595 if (!netdev)
1596 return -ENODEV;
1597
1598 dev = cfg80211_get_dev_from_ifindex(ifidx);
1599 if (IS_ERR(dev)) {
1600 err = PTR_ERR(dev);
1601 goto out_put_netdev;
1602 }
1603
1604 if (!dev->ops->dump_mpath) {
1605 err = -ENOSYS;
1606 goto out_err;
1607 }
1608
1609 rtnl_lock();
1610
1611 while (1) {
1612 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1613 dst, next_hop, &pinfo);
1614 if (err == -ENOENT)
2ec600d6 1615 break;
bba95fef
JB		 1616 if (err)
1617 goto out_err_rtnl;
2ec600d6 1618
bba95fef
JB		 1619 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1620 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1621 netdev, dst, next_hop,
1622 &pinfo) < 0)
1623 goto out;
2ec600d6 1624
bba95fef 1625 path_idx++;
2ec600d6 1626 }
2ec600d6 1627
2ec600d6 1628
bba95fef
JB		 1629 out:
1630 cb->args[1] = path_idx;
1631 err = skb->len;
1632 out_err_rtnl:
1633 rtnl_unlock();
1634 out_err:
1635 cfg80211_put_dev(dev);
1636 out_put_netdev:
1637 dev_put(netdev);
1638
1639 return err;
2ec600d6
LCC		 1640}
1641
1642static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1643{
1644 struct cfg80211_registered_device *drv;
1645 int err;
1646 struct net_device *dev;
1647 struct mpath_info pinfo;
1648 struct sk_buff *msg;
1649 u8 *dst = NULL;
1650 u8 next_hop[ETH_ALEN];
1651
1652 memset(&pinfo, 0, sizeof(pinfo));
1653
1654 if (!info->attrs[NL80211_ATTR_MAC])
1655 return -EINVAL;
1656
1657 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1658
bba95fef 1659 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1660 if (err)
1661 return err;
1662
1663 if (!drv->ops->get_mpath) {
1664 err = -EOPNOTSUPP;
1665 goto out;
1666 }
1667
1668 rtnl_lock();
1669 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1670 rtnl_unlock();
1671
1672 if (err)
1673 goto out;
1674
1675 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1676 if (!msg)
1677 goto out;
1678
1679 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1680 dev, dst, next_hop, &pinfo) < 0)
1681 goto out_free;
1682
1683 err = genlmsg_unicast(msg, info->snd_pid);
1684 goto out;
1685
1686 out_free:
1687 nlmsg_free(msg);
1688
1689 out:
1690 cfg80211_put_dev(drv);
1691 dev_put(dev);
1692 return err;
1693}
1694
1695static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1696{
1697 struct cfg80211_registered_device *drv;
1698 int err;
1699 struct net_device *dev;
1700 u8 *dst = NULL;
1701 u8 *next_hop = NULL;
1702
1703 if (!info->attrs[NL80211_ATTR_MAC])
1704 return -EINVAL;
1705
1706 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1707 return -EINVAL;
1708
1709 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1710 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1711
bba95fef 1712 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1713 if (err)
1714 return err;
1715
1716 if (!drv->ops->change_mpath) {
1717 err = -EOPNOTSUPP;
1718 goto out;
1719 }
1720
1721 rtnl_lock();
1722 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1723 rtnl_unlock();
1724
1725 out:
1726 cfg80211_put_dev(drv);
1727 dev_put(dev);
1728 return err;
1729}
1730static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1731{
1732 struct cfg80211_registered_device *drv;
1733 int err;
1734 struct net_device *dev;
1735 u8 *dst = NULL;
1736 u8 *next_hop = NULL;
1737
1738 if (!info->attrs[NL80211_ATTR_MAC])
1739 return -EINVAL;
1740
1741 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1742 return -EINVAL;
1743
1744 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1745 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1746
bba95fef 1747 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1748 if (err)
1749 return err;
1750
1751 if (!drv->ops->add_mpath) {
1752 err = -EOPNOTSUPP;
1753 goto out;
1754 }
1755
1756 rtnl_lock();
1757 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1758 rtnl_unlock();
1759
1760 out:
1761 cfg80211_put_dev(drv);
1762 dev_put(dev);
1763 return err;
1764}
1765
1766static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1767{
1768 struct cfg80211_registered_device *drv;
1769 int err;
1770 struct net_device *dev;
1771 u8 *dst = NULL;
1772
1773 if (info->attrs[NL80211_ATTR_MAC])
1774 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1775
bba95fef 1776 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1777 if (err)
1778 return err;
1779
1780 if (!drv->ops->del_mpath) {
1781 err = -EOPNOTSUPP;
1782 goto out;
1783 }
1784
1785 rtnl_lock();
1786 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1787 rtnl_unlock();
1788
1789 out:
1790 cfg80211_put_dev(drv);
1791 dev_put(dev);
1792 return err;
1793}
1794
9f1ba906
JM		 1795static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1796{
1797 struct cfg80211_registered_device *drv;
1798 int err;
1799 struct net_device *dev;
1800 struct bss_parameters params;
1801
1802 memset(&params, 0, sizeof(params));
1803 /* default to not changing parameters */
1804 params.use_cts_prot = -1;
1805 params.use_short_preamble = -1;
1806 params.use_short_slot_time = -1;
1807
1808 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1809 params.use_cts_prot =
1810 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1811 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1812 params.use_short_preamble =
1813 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1814 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1815 params.use_short_slot_time =
1816 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 1817 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
1818 params.basic_rates =
1819 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1820 params.basic_rates_len =
1821 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1822 }
9f1ba906
JM		 1823
1824 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1825 if (err)
1826 return err;
1827
1828 if (!drv->ops->change_bss) {
1829 err = -EOPNOTSUPP;
1830 goto out;
1831 }
1832
1833 rtnl_lock();
1834 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
1835 rtnl_unlock();
1836
1837 out:
1838 cfg80211_put_dev(drv);
1839 dev_put(dev);
1840 return err;
1841}
1842
b2e1b302
LR		 1843static const struct nla_policy
1844 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1845 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1846 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1847 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1848 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1849 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1850 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1851};
1852
1853static int parse_reg_rule(struct nlattr *tb[],
1854 struct ieee80211_reg_rule *reg_rule)
1855{
1856 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
1857 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
1858
1859 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1860 return -EINVAL;
1861 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1862 return -EINVAL;
1863 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1864 return -EINVAL;
1865 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1866 return -EINVAL;
1867 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1868 return -EINVAL;
1869
1870 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1871
1872 freq_range->start_freq_khz =
1873 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1874 freq_range->end_freq_khz =
1875 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1876 freq_range->max_bandwidth_khz =
1877 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1878
1879 power_rule->max_eirp =
1880 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1881
1882 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1883 power_rule->max_antenna_gain =
1884 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1885
1886 return 0;
1887}
1888
1889static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1890{
1891 int r;
1892 char *data = NULL;
1893
1894 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1895 return -EINVAL;
1896
1897 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1898
1899#ifdef CONFIG_WIRELESS_OLD_REGULATORY
1900 /* We ignore world regdom requests with the old regdom setup */
1901 if (is_world_regdom(data))
1902 return -EINVAL;
1903#endif
1904 mutex_lock(&cfg80211_drv_mutex);
3f2355cb 1905 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
b2e1b302
LR		 1906 mutex_unlock(&cfg80211_drv_mutex);
1907 return r;
1908}
1909
93da9cc1 1910static int nl80211_get_mesh_params(struct sk_buff *skb,
1911 struct genl_info *info)
1912{
1913 struct cfg80211_registered_device *drv;
1914 struct mesh_config cur_params;
1915 int err;
1916 struct net_device *dev;
1917 void *hdr;
1918 struct nlattr *pinfoattr;
1919 struct sk_buff *msg;
1920
1921 /* Look up our device */
1922 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1923 if (err)
1924 return err;
1925
1926 /* Get the mesh params */
1927 rtnl_lock();
1928 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1929 rtnl_unlock();
1930 if (err)
1931 goto out;
1932
1933 /* Draw up a netlink message to send back */
1934 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1935 if (!msg) {
1936 err = -ENOBUFS;
1937 goto out;
1938 }
1939 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1940 NL80211_CMD_GET_MESH_PARAMS);
1941 if (!hdr)
1942 goto nla_put_failure;
1943 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
1944 if (!pinfoattr)
1945 goto nla_put_failure;
1946 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1947 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
1948 cur_params.dot11MeshRetryTimeout);
1949 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
1950 cur_params.dot11MeshConfirmTimeout);
1951 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
1952 cur_params.dot11MeshHoldingTimeout);
1953 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
1954 cur_params.dot11MeshMaxPeerLinks);
1955 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
1956 cur_params.dot11MeshMaxRetries);
1957 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
1958 cur_params.dot11MeshTTL);
1959 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
1960 cur_params.auto_open_plinks);
1961 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1962 cur_params.dot11MeshHWMPmaxPREQretries);
1963 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
1964 cur_params.path_refresh_time);
1965 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1966 cur_params.min_discovery_timeout);
1967 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1968 cur_params.dot11MeshHWMPactivePathTimeout);
1969 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1970 cur_params.dot11MeshHWMPpreqMinInterval);
1971 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1972 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
1973 nla_nest_end(msg, pinfoattr);
1974 genlmsg_end(msg, hdr);
1975 err = genlmsg_unicast(msg, info->snd_pid);
1976 goto out;
1977
1978nla_put_failure:
1979 genlmsg_cancel(msg, hdr);
1980 err = -EMSGSIZE;
1981out:
1982 /* Cleanup */
1983 cfg80211_put_dev(drv);
1984 dev_put(dev);
1985 return err;
1986}
1987
1988#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
1989do {\
1990 if (table[attr_num]) {\
1991 cfg.param = nla_fn(table[attr_num]); \
1992 mask |= (1 << (attr_num - 1)); \
1993 } \
1994} while (0);\
1995
1996static struct nla_policy
1997nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
1998 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
1999 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2000 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2001 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2002 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2003 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2004 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2005
2006 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2007 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2008 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2009 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2010 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2011 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2012};
2013
2014static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2015{
2016 int err;
2017 u32 mask;
2018 struct cfg80211_registered_device *drv;
2019 struct net_device *dev;
2020 struct mesh_config cfg;
2021 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2022 struct nlattr *parent_attr;
2023
2024 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2025 if (!parent_attr)
2026 return -EINVAL;
2027 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2028 parent_attr, nl80211_meshconf_params_policy))
2029 return -EINVAL;
2030
2031 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2032 if (err)
2033 return err;
2034
2035 /* This makes sure that there aren't more than 32 mesh config
2036 * parameters (otherwise our bitfield scheme would not work.) */
2037 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2038
2039 /* Fill in the params struct */
2040 mask = 0;
2041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2042 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2043 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2044 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2045 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2046 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2047 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2048 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2049 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2050 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2051 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2052 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2053 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2054 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2055 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2056 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2057 nla_get_u8);
2058 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2059 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2060 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2061 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2062 nla_get_u16);
2063 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2064 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2065 nla_get_u32);
2066 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2067 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2068 nla_get_u16);
2069 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2070 dot11MeshHWMPnetDiameterTraversalTime,
2071 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2072 nla_get_u16);
2073
2074 /* Apply changes */
2075 rtnl_lock();
2076 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
2077 rtnl_unlock();
2078
2079 /* cleanup */
2080 cfg80211_put_dev(drv);
2081 dev_put(dev);
2082 return err;
2083}
2084
2085#undef FILL_IN_MESH_PARAM_IF_SET
2086
b2e1b302
LR		 2087static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2088{
2089 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2090 struct nlattr *nl_reg_rule;
2091 char *alpha2 = NULL;
2092 int rem_reg_rules = 0, r = 0;
2093 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2094 struct ieee80211_regdomain *rd = NULL;
2095
2096 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2097 return -EINVAL;
2098
2099 if (!info->attrs[NL80211_ATTR_REG_RULES])
2100 return -EINVAL;
2101
2102 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2103
2104 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2105 rem_reg_rules) {
2106 num_rules++;
2107 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2108 goto bad_reg;
2109 }
2110
2111 if (!reg_is_valid_request(alpha2))
2112 return -EINVAL;
2113
2114 size_of_regd = sizeof(struct ieee80211_regdomain) +
2115 (num_rules * sizeof(struct ieee80211_reg_rule));
2116
2117 rd = kzalloc(size_of_regd, GFP_KERNEL);
2118 if (!rd)
2119 return -ENOMEM;
2120
2121 rd->n_reg_rules = num_rules;
2122 rd->alpha2[0] = alpha2[0];
2123 rd->alpha2[1] = alpha2[1];
2124
2125 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2126 rem_reg_rules) {
2127 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2128 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2129 reg_rule_policy);
2130 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2131 if (r)
2132 goto bad_reg;
2133
2134 rule_idx++;
2135
2136 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
2137 goto bad_reg;
2138 }
2139
2140 BUG_ON(rule_idx != num_rules);
2141
2142 mutex_lock(&cfg80211_drv_mutex);
2143 r = set_regdom(rd);
2144 mutex_unlock(&cfg80211_drv_mutex);
b2e1b302
LR		 2145 return r;
2146
d2372b31 2147 bad_reg:
b2e1b302
LR		 2148 kfree(rd);
2149 return -EINVAL;
2150}
2151
55682965
JB		 2152static struct genl_ops nl80211_ops[] = {
2153 {
2154 .cmd = NL80211_CMD_GET_WIPHY,
2155 .doit = nl80211_get_wiphy,
2156 .dumpit = nl80211_dump_wiphy,
2157 .policy = nl80211_policy,
2158 /* can be retrieved by unprivileged users */
2159 },
2160 {
2161 .cmd = NL80211_CMD_SET_WIPHY,
2162 .doit = nl80211_set_wiphy,
2163 .policy = nl80211_policy,
2164 .flags = GENL_ADMIN_PERM,
2165 },
2166 {
2167 .cmd = NL80211_CMD_GET_INTERFACE,
2168 .doit = nl80211_get_interface,
2169 .dumpit = nl80211_dump_interface,
2170 .policy = nl80211_policy,
2171 /* can be retrieved by unprivileged users */
2172 },
2173 {
2174 .cmd = NL80211_CMD_SET_INTERFACE,
2175 .doit = nl80211_set_interface,
2176 .policy = nl80211_policy,
2177 .flags = GENL_ADMIN_PERM,
2178 },
2179 {
2180 .cmd = NL80211_CMD_NEW_INTERFACE,
2181 .doit = nl80211_new_interface,
2182 .policy = nl80211_policy,
2183 .flags = GENL_ADMIN_PERM,
2184 },
2185 {
2186 .cmd = NL80211_CMD_DEL_INTERFACE,
2187 .doit = nl80211_del_interface,
2188 .policy = nl80211_policy,
41ade00f
JB		 2189 .flags = GENL_ADMIN_PERM,
2190 },
2191 {
2192 .cmd = NL80211_CMD_GET_KEY,
2193 .doit = nl80211_get_key,
2194 .policy = nl80211_policy,
2195 .flags = GENL_ADMIN_PERM,
2196 },
2197 {
2198 .cmd = NL80211_CMD_SET_KEY,
2199 .doit = nl80211_set_key,
2200 .policy = nl80211_policy,
2201 .flags = GENL_ADMIN_PERM,
2202 },
2203 {
2204 .cmd = NL80211_CMD_NEW_KEY,
2205 .doit = nl80211_new_key,
2206 .policy = nl80211_policy,
2207 .flags = GENL_ADMIN_PERM,
2208 },
2209 {
2210 .cmd = NL80211_CMD_DEL_KEY,
2211 .doit = nl80211_del_key,
2212 .policy = nl80211_policy,
55682965
JB		 2213 .flags = GENL_ADMIN_PERM,
2214 },
ed1b6cc7
JB		 2215 {
2216 .cmd = NL80211_CMD_SET_BEACON,
2217 .policy = nl80211_policy,
2218 .flags = GENL_ADMIN_PERM,
2219 .doit = nl80211_addset_beacon,
2220 },
2221 {
2222 .cmd = NL80211_CMD_NEW_BEACON,
2223 .policy = nl80211_policy,
2224 .flags = GENL_ADMIN_PERM,
2225 .doit = nl80211_addset_beacon,
2226 },
2227 {
2228 .cmd = NL80211_CMD_DEL_BEACON,
2229 .policy = nl80211_policy,
2230 .flags = GENL_ADMIN_PERM,
2231 .doit = nl80211_del_beacon,
2232 },
5727ef1b
JB		 2233 {
2234 .cmd = NL80211_CMD_GET_STATION,
2235 .doit = nl80211_get_station,
2ec600d6 2236 .dumpit = nl80211_dump_station,
5727ef1b
JB		 2237 .policy = nl80211_policy,
2238 .flags = GENL_ADMIN_PERM,
2239 },
2240 {
2241 .cmd = NL80211_CMD_SET_STATION,
2242 .doit = nl80211_set_station,
2243 .policy = nl80211_policy,
2244 .flags = GENL_ADMIN_PERM,
2245 },
2246 {
2247 .cmd = NL80211_CMD_NEW_STATION,
2248 .doit = nl80211_new_station,
2249 .policy = nl80211_policy,
2250 .flags = GENL_ADMIN_PERM,
2251 },
2252 {
2253 .cmd = NL80211_CMD_DEL_STATION,
2254 .doit = nl80211_del_station,
2255 .policy = nl80211_policy,
2ec600d6
LCC		 2256 .flags = GENL_ADMIN_PERM,
2257 },
2258 {
2259 .cmd = NL80211_CMD_GET_MPATH,
2260 .doit = nl80211_get_mpath,
2261 .dumpit = nl80211_dump_mpath,
2262 .policy = nl80211_policy,
2263 .flags = GENL_ADMIN_PERM,
2264 },
2265 {
2266 .cmd = NL80211_CMD_SET_MPATH,
2267 .doit = nl80211_set_mpath,
2268 .policy = nl80211_policy,
2269 .flags = GENL_ADMIN_PERM,
2270 },
2271 {
2272 .cmd = NL80211_CMD_NEW_MPATH,
2273 .doit = nl80211_new_mpath,
2274 .policy = nl80211_policy,
2275 .flags = GENL_ADMIN_PERM,
2276 },
2277 {
2278 .cmd = NL80211_CMD_DEL_MPATH,
2279 .doit = nl80211_del_mpath,
2280 .policy = nl80211_policy,
9f1ba906
JM		 2281 .flags = GENL_ADMIN_PERM,
2282 },
2283 {
2284 .cmd = NL80211_CMD_SET_BSS,
2285 .doit = nl80211_set_bss,
2286 .policy = nl80211_policy,
b2e1b302
LR		 2287 .flags = GENL_ADMIN_PERM,
2288 },
2289 {
2290 .cmd = NL80211_CMD_SET_REG,
2291 .doit = nl80211_set_reg,
2292 .policy = nl80211_policy,
2293 .flags = GENL_ADMIN_PERM,
2294 },
2295 {
2296 .cmd = NL80211_CMD_REQ_SET_REG,
2297 .doit = nl80211_req_set_reg,
2298 .policy = nl80211_policy,
93da9cc1 2299 .flags = GENL_ADMIN_PERM,
2300 },
2301 {
2302 .cmd = NL80211_CMD_GET_MESH_PARAMS,
2303 .doit = nl80211_get_mesh_params,
2304 .policy = nl80211_policy,
2305 /* can be retrieved by unprivileged users */
2306 },
2307 {
2308 .cmd = NL80211_CMD_SET_MESH_PARAMS,
2309 .doit = nl80211_set_mesh_params,
2310 .policy = nl80211_policy,
5727ef1b
JB		 2311 .flags = GENL_ADMIN_PERM,
2312 },
55682965
JB		 2313};
2314
2315/* multicast groups */
2316static struct genl_multicast_group nl80211_config_mcgrp = {
2317 .name = "config",
2318};
2319
2320/* notification functions */
2321
2322void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
2323{
2324 struct sk_buff *msg;
2325
2326 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2327 if (!msg)
2328 return;
2329
2330 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
2331 nlmsg_free(msg);
2332 return;
2333 }
2334
2335 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
2336}
2337
2338/* initialisation/exit functions */
2339
2340int nl80211_init(void)
2341{
2342 int err, i;
2343
2344 err = genl_register_family(&nl80211_fam);
2345 if (err)
2346 return err;
2347
2348 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
2349 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
2350 if (err)
2351 goto err_out;
2352 }
2353
2354 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
2355 if (err)
2356 goto err_out;
2357
2358 return 0;
2359 err_out:
2360 genl_unregister_family(&nl80211_fam);
2361 return err;
2362}
2363
2364void nl80211_exit(void)
2365{
2366 genl_unregister_family(&nl80211_fam);
2367}
Linux 6.x block layer and io_uring tree(s)