]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: allow interface settings changes only when down
[mirror_ubuntu-bionic-kernel.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 },
61
62 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
63 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
64 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 65
66 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
67
68 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
69 .len = WLAN_MAX_KEY_LEN },
70 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
71 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
72 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
ed1b6cc7
JB		 73
74 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
75 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
76 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
77 .len = IEEE80211_MAX_DATA_LEN },
78 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
79 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 80 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
81 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
82 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
83 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
84 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 85 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 86 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
66f7ac50 87 [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED },
2ec600d6
LCC		 88 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
89 .len = IEEE80211_MAX_MESH_ID_LEN },
90 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 91
b2e1b302
LR		 92 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
93 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
94
9f1ba906
JM		 95 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
96 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
97 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
36aedc90
JM		 98
99 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
100 .len = NL80211_HT_CAPABILITY_LEN },
55682965
JB		 101};
102
103/* message building helper */
104static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
105 int flags, u8 cmd)
106{
107 /* since there is no private header just add the generic one */
108 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
109}
110
111/* netlink command implementations */
112
113static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
114 struct cfg80211_registered_device *dev)
115{
116 void *hdr;
ee688b00
JB		 117 struct nlattr *nl_bands, *nl_band;
118 struct nlattr *nl_freqs, *nl_freq;
119 struct nlattr *nl_rates, *nl_rate;
f59ac048 120 struct nlattr *nl_modes;
ee688b00
JB		 121 enum ieee80211_band band;
122 struct ieee80211_channel *chan;
123 struct ieee80211_rate *rate;
124 int i;
f59ac048 125 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 126
127 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
128 if (!hdr)
129 return -1;
130
131 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
132 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
ee688b00 133
f59ac048
LR		 134 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
135 if (!nl_modes)
136 goto nla_put_failure;
137
138 i = 0;
139 while (ifmodes) {
140 if (ifmodes & 1)
141 NLA_PUT_FLAG(msg, i);
142 ifmodes >>= 1;
143 i++;
144 }
145
146 nla_nest_end(msg, nl_modes);
147
ee688b00
JB		 148 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
149 if (!nl_bands)
150 goto nla_put_failure;
151
152 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
153 if (!dev->wiphy.bands[band])
154 continue;
155
156 nl_band = nla_nest_start(msg, band);
157 if (!nl_band)
158 goto nla_put_failure;
159
160 /* add frequencies */
161 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
162 if (!nl_freqs)
163 goto nla_put_failure;
164
165 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
166 nl_freq = nla_nest_start(msg, i);
167 if (!nl_freq)
168 goto nla_put_failure;
169
170 chan = &dev->wiphy.bands[band]->channels[i];
171 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
172 chan->center_freq);
173
174 if (chan->flags & IEEE80211_CHAN_DISABLED)
175 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
176 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
177 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
178 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
179 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
180 if (chan->flags & IEEE80211_CHAN_RADAR)
181 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
182
183 nla_nest_end(msg, nl_freq);
184 }
185
186 nla_nest_end(msg, nl_freqs);
187
188 /* add bitrates */
189 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
190 if (!nl_rates)
191 goto nla_put_failure;
192
193 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
194 nl_rate = nla_nest_start(msg, i);
195 if (!nl_rate)
196 goto nla_put_failure;
197
198 rate = &dev->wiphy.bands[band]->bitrates[i];
199 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
200 rate->bitrate);
201 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
202 NLA_PUT_FLAG(msg,
203 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
204
205 nla_nest_end(msg, nl_rate);
206 }
207
208 nla_nest_end(msg, nl_rates);
209
210 nla_nest_end(msg, nl_band);
211 }
212 nla_nest_end(msg, nl_bands);
213
55682965
JB		 214 return genlmsg_end(msg, hdr);
215
216 nla_put_failure:
bc3ed28c
TG		 217 genlmsg_cancel(msg, hdr);
218 return -EMSGSIZE;
55682965
JB		 219}
220
221static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
222{
223 int idx = 0;
224 int start = cb->args[0];
225 struct cfg80211_registered_device *dev;
226
227 mutex_lock(&cfg80211_drv_mutex);
228 list_for_each_entry(dev, &cfg80211_drv_list, list) {
b4637271 229 if (++idx <= start)
55682965
JB		 230 continue;
231 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
232 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 233 dev) < 0) {
234 idx--;
55682965 235 break;
b4637271 236 }
55682965
JB		 237 }
238 mutex_unlock(&cfg80211_drv_mutex);
239
240 cb->args[0] = idx;
241
242 return skb->len;
243}
244
245static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
246{
247 struct sk_buff *msg;
248 struct cfg80211_registered_device *dev;
249
250 dev = cfg80211_get_dev_from_info(info);
251 if (IS_ERR(dev))
252 return PTR_ERR(dev);
253
254 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
255 if (!msg)
256 goto out_err;
257
258 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
259 goto out_free;
260
261 cfg80211_put_dev(dev);
262
263 return genlmsg_unicast(msg, info->snd_pid);
264
265 out_free:
266 nlmsg_free(msg);
267 out_err:
268 cfg80211_put_dev(dev);
269 return -ENOBUFS;
270}
271
272static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
273{
274 struct cfg80211_registered_device *rdev;
275 int result;
276
277 if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
278 return -EINVAL;
279
280 rdev = cfg80211_get_dev_from_info(info);
281 if (IS_ERR(rdev))
282 return PTR_ERR(rdev);
283
284 result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
285
286 cfg80211_put_dev(rdev);
287 return result;
288}
289
290
291static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
292 struct net_device *dev)
293{
294 void *hdr;
295
296 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
297 if (!hdr)
298 return -1;
299
300 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
301 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 302 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
55682965
JB		 303 return genlmsg_end(msg, hdr);
304
305 nla_put_failure:
bc3ed28c
TG		 306 genlmsg_cancel(msg, hdr);
307 return -EMSGSIZE;
55682965
JB		 308}
309
310static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
311{
312 int wp_idx = 0;
313 int if_idx = 0;
314 int wp_start = cb->args[0];
315 int if_start = cb->args[1];
316 struct cfg80211_registered_device *dev;
317 struct wireless_dev *wdev;
318
319 mutex_lock(&cfg80211_drv_mutex);
320 list_for_each_entry(dev, &cfg80211_drv_list, list) {
bba95fef
JB		 321 if (wp_idx < wp_start) {
322 wp_idx++;
55682965 323 continue;
bba95fef 324 }
55682965
JB		 325 if_idx = 0;
326
327 mutex_lock(&dev->devlist_mtx);
328 list_for_each_entry(wdev, &dev->netdev_list, list) {
bba95fef
JB		 329 if (if_idx < if_start) {
330 if_idx++;
55682965 331 continue;
bba95fef 332 }
55682965
JB		 333 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
334 cb->nlh->nlmsg_seq, NLM_F_MULTI,
bba95fef
JB		 335 wdev->netdev) < 0) {
336 mutex_unlock(&dev->devlist_mtx);
337 goto out;
338 }
339 if_idx++;
55682965
JB		 340 }
341 mutex_unlock(&dev->devlist_mtx);
bba95fef
JB		 342
343 wp_idx++;
55682965 344 }
bba95fef 345 out:
55682965
JB		 346 mutex_unlock(&cfg80211_drv_mutex);
347
348 cb->args[0] = wp_idx;
349 cb->args[1] = if_idx;
350
351 return skb->len;
352}
353
354static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
355{
356 struct sk_buff *msg;
357 struct cfg80211_registered_device *dev;
358 struct net_device *netdev;
359 int err;
360
bba95fef 361 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
55682965
JB		 362 if (err)
363 return err;
364
365 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
366 if (!msg)
367 goto out_err;
368
369 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
370 goto out_free;
371
372 dev_put(netdev);
373 cfg80211_put_dev(dev);
374
375 return genlmsg_unicast(msg, info->snd_pid);
376
377 out_free:
378 nlmsg_free(msg);
379 out_err:
380 dev_put(netdev);
381 cfg80211_put_dev(dev);
382 return -ENOBUFS;
383}
384
66f7ac50
MW		 385static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
386 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
387 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
388 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
389 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
390 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
391};
392
393static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
394{
395 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
396 int flag;
397
398 *mntrflags = 0;
399
400 if (!nla)
401 return -EINVAL;
402
403 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
404 nla, mntr_flags_policy))
405 return -EINVAL;
406
407 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
408 if (flags[flag])
409 *mntrflags |= (1<<flag);
410
411 return 0;
412}
413
55682965
JB		 414static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
415{
416 struct cfg80211_registered_device *drv;
2ec600d6 417 struct vif_params params;
55682965
JB		 418 int err, ifindex;
419 enum nl80211_iftype type;
420 struct net_device *dev;
66f7ac50 421 u32 flags;
55682965 422
2ec600d6
LCC		 423 memset(&params, 0, sizeof(params));
424
bba95fef 425 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 426 if (err)
427 return err;
428 ifindex = dev->ifindex;
723b038d 429 type = dev->ieee80211_ptr->iftype;
55682965
JB		 430 dev_put(dev);
431
723b038d
JB		 432 err = -EINVAL;
433 if (info->attrs[NL80211_ATTR_IFTYPE]) {
434 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
435 if (type > NL80211_IFTYPE_MAX)
436 goto unlock;
437 }
438
f59ac048
LR		 439 if (!drv->ops->change_virtual_intf ||
440 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 441 err = -EOPNOTSUPP;
442 goto unlock;
443 }
444
2ec600d6
LCC		 445 if (type == NL80211_IFTYPE_MESH_POINT &&
446 info->attrs[NL80211_ATTR_MESH_ID]) {
447 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
448 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
449 }
450
55682965 451 rtnl_lock();
66f7ac50
MW		 452 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
453 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
454 &flags);
455 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
2ec600d6 456 type, err ? NULL : &flags, &params);
60719ffd
JB		 457
458 dev = __dev_get_by_index(&init_net, ifindex);
459 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
460
55682965
JB		 461 rtnl_unlock();
462
463 unlock:
464 cfg80211_put_dev(drv);
465 return err;
466}
467
468static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
469{
470 struct cfg80211_registered_device *drv;
2ec600d6 471 struct vif_params params;
55682965
JB		 472 int err;
473 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 474 u32 flags;
55682965 475
2ec600d6
LCC		 476 memset(&params, 0, sizeof(params));
477
55682965
JB		 478 if (!info->attrs[NL80211_ATTR_IFNAME])
479 return -EINVAL;
480
481 if (info->attrs[NL80211_ATTR_IFTYPE]) {
482 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
483 if (type > NL80211_IFTYPE_MAX)
484 return -EINVAL;
485 }
486
487 drv = cfg80211_get_dev_from_info(info);
488 if (IS_ERR(drv))
489 return PTR_ERR(drv);
490
f59ac048
LR		 491 if (!drv->ops->add_virtual_intf ||
492 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 493 err = -EOPNOTSUPP;
494 goto unlock;
495 }
496
2ec600d6
LCC		 497 if (type == NL80211_IFTYPE_MESH_POINT &&
498 info->attrs[NL80211_ATTR_MESH_ID]) {
499 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
500 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
501 }
502
55682965 503 rtnl_lock();
66f7ac50
MW		 504 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
505 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
506 &flags);
55682965 507 err = drv->ops->add_virtual_intf(&drv->wiphy,
66f7ac50 508 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 509 type, err ? NULL : &flags, &params);
55682965
JB		 510 rtnl_unlock();
511
2ec600d6 512
55682965
JB		 513 unlock:
514 cfg80211_put_dev(drv);
515 return err;
516}
517
518static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
519{
520 struct cfg80211_registered_device *drv;
521 int ifindex, err;
522 struct net_device *dev;
523
bba95fef 524 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 525 if (err)
526 return err;
527 ifindex = dev->ifindex;
528 dev_put(dev);
529
530 if (!drv->ops->del_virtual_intf) {
531 err = -EOPNOTSUPP;
532 goto out;
533 }
534
535 rtnl_lock();
536 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
537 rtnl_unlock();
538
539 out:
540 cfg80211_put_dev(drv);
541 return err;
542}
543
41ade00f
JB		 544struct get_key_cookie {
545 struct sk_buff *msg;
546 int error;
547};
548
549static void get_key_callback(void *c, struct key_params *params)
550{
551 struct get_key_cookie *cookie = c;
552
553 if (params->key)
554 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
555 params->key_len, params->key);
556
557 if (params->seq)
558 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
559 params->seq_len, params->seq);
560
561 if (params->cipher)
562 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
563 params->cipher);
564
565 return;
566 nla_put_failure:
567 cookie->error = 1;
568}
569
570static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
571{
572 struct cfg80211_registered_device *drv;
573 int err;
574 struct net_device *dev;
575 u8 key_idx = 0;
576 u8 *mac_addr = NULL;
577 struct get_key_cookie cookie = {
578 .error = 0,
579 };
580 void *hdr;
581 struct sk_buff *msg;
582
583 if (info->attrs[NL80211_ATTR_KEY_IDX])
584 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
585
586 if (key_idx > 3)
587 return -EINVAL;
588
589 if (info->attrs[NL80211_ATTR_MAC])
590 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
591
bba95fef 592 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 593 if (err)
594 return err;
595
596 if (!drv->ops->get_key) {
597 err = -EOPNOTSUPP;
598 goto out;
599 }
600
601 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
602 if (!msg) {
603 err = -ENOMEM;
604 goto out;
605 }
606
607 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
608 NL80211_CMD_NEW_KEY);
609
610 if (IS_ERR(hdr)) {
611 err = PTR_ERR(hdr);
612 goto out;
613 }
614
615 cookie.msg = msg;
616
617 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
618 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
619 if (mac_addr)
620 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
621
622 rtnl_lock();
623 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
624 &cookie, get_key_callback);
625 rtnl_unlock();
626
627 if (err)
628 goto out;
629
630 if (cookie.error)
631 goto nla_put_failure;
632
633 genlmsg_end(msg, hdr);
634 err = genlmsg_unicast(msg, info->snd_pid);
635 goto out;
636
637 nla_put_failure:
638 err = -ENOBUFS;
639 nlmsg_free(msg);
640 out:
641 cfg80211_put_dev(drv);
642 dev_put(dev);
643 return err;
644}
645
646static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
647{
648 struct cfg80211_registered_device *drv;
649 int err;
650 struct net_device *dev;
651 u8 key_idx;
652
653 if (!info->attrs[NL80211_ATTR_KEY_IDX])
654 return -EINVAL;
655
656 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
657
658 if (key_idx > 3)
659 return -EINVAL;
660
661 /* currently only support setting default key */
662 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
663 return -EINVAL;
664
bba95fef 665 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 666 if (err)
667 return err;
668
669 if (!drv->ops->set_default_key) {
670 err = -EOPNOTSUPP;
671 goto out;
672 }
673
674 rtnl_lock();
675 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
676 rtnl_unlock();
677
678 out:
679 cfg80211_put_dev(drv);
680 dev_put(dev);
681 return err;
682}
683
684static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
685{
686 struct cfg80211_registered_device *drv;
687 int err;
688 struct net_device *dev;
689 struct key_params params;
690 u8 key_idx = 0;
691 u8 *mac_addr = NULL;
692
693 memset(&params, 0, sizeof(params));
694
695 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
696 return -EINVAL;
697
698 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
699 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
700 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
701 }
702
703 if (info->attrs[NL80211_ATTR_KEY_IDX])
704 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
705
706 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
707
708 if (info->attrs[NL80211_ATTR_MAC])
709 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
710
711 if (key_idx > 3)
712 return -EINVAL;
713
714 /*
715 * Disallow pairwise keys with non-zero index unless it's WEP
716 * (because current deployments use pairwise WEP keys with
717 * non-zero indizes but 802.11i clearly specifies to use zero)
718 */
719 if (mac_addr && key_idx &&
720 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
721 params.cipher != WLAN_CIPHER_SUITE_WEP104)
722 return -EINVAL;
723
724 /* TODO: add definitions for the lengths to linux/ieee80211.h */
725 switch (params.cipher) {
726 case WLAN_CIPHER_SUITE_WEP40:
727 if (params.key_len != 5)
728 return -EINVAL;
729 break;
730 case WLAN_CIPHER_SUITE_TKIP:
731 if (params.key_len != 32)
732 return -EINVAL;
733 break;
734 case WLAN_CIPHER_SUITE_CCMP:
735 if (params.key_len != 16)
736 return -EINVAL;
737 break;
738 case WLAN_CIPHER_SUITE_WEP104:
739 if (params.key_len != 13)
740 return -EINVAL;
741 break;
742 default:
743 return -EINVAL;
744 }
745
bba95fef 746 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 747 if (err)
748 return err;
749
750 if (!drv->ops->add_key) {
751 err = -EOPNOTSUPP;
752 goto out;
753 }
754
755 rtnl_lock();
756 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
757 rtnl_unlock();
758
759 out:
760 cfg80211_put_dev(drv);
761 dev_put(dev);
762 return err;
763}
764
765static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
766{
767 struct cfg80211_registered_device *drv;
768 int err;
769 struct net_device *dev;
770 u8 key_idx = 0;
771 u8 *mac_addr = NULL;
772
773 if (info->attrs[NL80211_ATTR_KEY_IDX])
774 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
775
776 if (key_idx > 3)
777 return -EINVAL;
778
779 if (info->attrs[NL80211_ATTR_MAC])
780 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
781
bba95fef 782 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 783 if (err)
784 return err;
785
786 if (!drv->ops->del_key) {
787 err = -EOPNOTSUPP;
788 goto out;
789 }
790
791 rtnl_lock();
792 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
793 rtnl_unlock();
794
795 out:
796 cfg80211_put_dev(drv);
797 dev_put(dev);
798 return err;
799}
800
ed1b6cc7
JB		 801static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
802{
803 int (*call)(struct wiphy *wiphy, struct net_device *dev,
804 struct beacon_parameters *info);
805 struct cfg80211_registered_device *drv;
806 int err;
807 struct net_device *dev;
808 struct beacon_parameters params;
809 int haveinfo = 0;
810
bba95fef 811 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 812 if (err)
813 return err;
814
815 switch (info->genlhdr->cmd) {
816 case NL80211_CMD_NEW_BEACON:
817 /* these are required for NEW_BEACON */
818 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
819 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
820 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
821 err = -EINVAL;
822 goto out;
823 }
824
825 call = drv->ops->add_beacon;
826 break;
827 case NL80211_CMD_SET_BEACON:
828 call = drv->ops->set_beacon;
829 break;
830 default:
831 WARN_ON(1);
832 err = -EOPNOTSUPP;
833 goto out;
834 }
835
836 if (!call) {
837 err = -EOPNOTSUPP;
838 goto out;
839 }
840
841 memset(&params, 0, sizeof(params));
842
843 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
844 params.interval =
845 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
846 haveinfo = 1;
847 }
848
849 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
850 params.dtim_period =
851 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
852 haveinfo = 1;
853 }
854
855 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
856 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
857 params.head_len =
858 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
859 haveinfo = 1;
860 }
861
862 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
863 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
864 params.tail_len =
865 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
866 haveinfo = 1;
867 }
868
869 if (!haveinfo) {
870 err = -EINVAL;
871 goto out;
872 }
873
874 rtnl_lock();
875 err = call(&drv->wiphy, dev, &params);
876 rtnl_unlock();
877
878 out:
879 cfg80211_put_dev(drv);
880 dev_put(dev);
881 return err;
882}
883
884static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
885{
886 struct cfg80211_registered_device *drv;
887 int err;
888 struct net_device *dev;
889
bba95fef 890 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 891 if (err)
892 return err;
893
894 if (!drv->ops->del_beacon) {
895 err = -EOPNOTSUPP;
896 goto out;
897 }
898
899 rtnl_lock();
900 err = drv->ops->del_beacon(&drv->wiphy, dev);
901 rtnl_unlock();
902
903 out:
904 cfg80211_put_dev(drv);
905 dev_put(dev);
906 return err;
907}
908
5727ef1b
JB		 909static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
910 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
911 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
912 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
913};
914
915static int parse_station_flags(struct nlattr *nla, u32 *staflags)
916{
917 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
918 int flag;
919
920 *staflags = 0;
921
922 if (!nla)
923 return 0;
924
925 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
926 nla, sta_flags_policy))
927 return -EINVAL;
928
929 *staflags = STATION_FLAG_CHANGED;
930
931 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
932 if (flags[flag])
933 *staflags |= (1<<flag);
934
935 return 0;
936}
937
fd5b74dc
JB		 938static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
939 int flags, struct net_device *dev,
2ec600d6 940 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 941{
942 void *hdr;
2ec600d6 943 struct nlattr *sinfoattr;
fd5b74dc
JB		 944
945 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
946 if (!hdr)
947 return -1;
948
949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
950 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
951
2ec600d6
LCC		 952 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
953 if (!sinfoattr)
fd5b74dc 954 goto nla_put_failure;
2ec600d6
LCC		 955 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
956 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
957 sinfo->inactive_time);
958 if (sinfo->filled & STATION_INFO_RX_BYTES)
959 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
960 sinfo->rx_bytes);
961 if (sinfo->filled & STATION_INFO_TX_BYTES)
962 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
963 sinfo->tx_bytes);
964 if (sinfo->filled & STATION_INFO_LLID)
965 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
966 sinfo->llid);
967 if (sinfo->filled & STATION_INFO_PLID)
968 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
969 sinfo->plid);
970 if (sinfo->filled & STATION_INFO_PLINK_STATE)
971 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
972 sinfo->plink_state);
973
974 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 975
976 return genlmsg_end(msg, hdr);
977
978 nla_put_failure:
bc3ed28c
TG		 979 genlmsg_cancel(msg, hdr);
980 return -EMSGSIZE;
fd5b74dc
JB		 981}
982
2ec600d6 983static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 984 struct netlink_callback *cb)
2ec600d6 985{
2ec600d6
LCC		 986 struct station_info sinfo;
987 struct cfg80211_registered_device *dev;
bba95fef 988 struct net_device *netdev;
2ec600d6 989 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 990 int ifidx = cb->args[0];
991 int sta_idx = cb->args[1];
2ec600d6 992 int err;
2ec600d6 993
bba95fef
JB		 994 if (!ifidx) {
995 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
996 nl80211_fam.attrbuf, nl80211_fam.maxattr,
997 nl80211_policy);
998 if (err)
999 return err;
2ec600d6 1000
bba95fef
JB		 1001 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1002 return -EINVAL;
2ec600d6 1003
bba95fef
JB		 1004 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1005 if (!ifidx)
1006 return -EINVAL;
2ec600d6 1007 }
2ec600d6 1008
bba95fef
JB		 1009 netdev = dev_get_by_index(&init_net, ifidx);
1010 if (!netdev)
1011 return -ENODEV;
2ec600d6 1012
bba95fef
JB		 1013 dev = cfg80211_get_dev_from_ifindex(ifidx);
1014 if (IS_ERR(dev)) {
1015 err = PTR_ERR(dev);
1016 goto out_put_netdev;
1017 }
1018
1019 if (!dev->ops->dump_station) {
1020 err = -ENOSYS;
1021 goto out_err;
1022 }
1023
1024 rtnl_lock();
1025
1026 while (1) {
1027 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1028 mac_addr, &sinfo);
1029 if (err == -ENOENT)
1030 break;
1031 if (err)
1032 goto out_err_rtnl;
1033
1034 if (nl80211_send_station(skb,
1035 NETLINK_CB(cb->skb).pid,
1036 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1037 netdev, mac_addr,
1038 &sinfo) < 0)
1039 goto out;
1040
1041 sta_idx++;
1042 }
1043
1044
1045 out:
1046 cb->args[1] = sta_idx;
1047 err = skb->len;
1048 out_err_rtnl:
1049 rtnl_unlock();
1050 out_err:
1051 cfg80211_put_dev(dev);
1052 out_put_netdev:
1053 dev_put(netdev);
1054
1055 return err;
2ec600d6 1056}
fd5b74dc 1057
5727ef1b
JB		 1058static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1059{
fd5b74dc
JB		 1060 struct cfg80211_registered_device *drv;
1061 int err;
1062 struct net_device *dev;
2ec600d6 1063 struct station_info sinfo;
fd5b74dc
JB		 1064 struct sk_buff *msg;
1065 u8 *mac_addr = NULL;
1066
2ec600d6 1067 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1068
1069 if (!info->attrs[NL80211_ATTR_MAC])
1070 return -EINVAL;
1071
1072 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1073
bba95fef 1074 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
fd5b74dc
JB		 1075 if (err)
1076 return err;
1077
1078 if (!drv->ops->get_station) {
1079 err = -EOPNOTSUPP;
1080 goto out;
1081 }
1082
1083 rtnl_lock();
2ec600d6 1084 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
fd5b74dc
JB		 1085 rtnl_unlock();
1086
2ec600d6
LCC		 1087 if (err)
1088 goto out;
1089
fd5b74dc
JB		 1090 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1091 if (!msg)
1092 goto out;
1093
1094 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1095 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1096 goto out_free;
1097
1098 err = genlmsg_unicast(msg, info->snd_pid);
1099 goto out;
1100
1101 out_free:
1102 nlmsg_free(msg);
1103
1104 out:
1105 cfg80211_put_dev(drv);
1106 dev_put(dev);
1107 return err;
5727ef1b
JB		 1108}
1109
1110/*
1111 * Get vlan interface making sure it is on the right wiphy.
1112 */
1113static int get_vlan(struct nlattr *vlanattr,
1114 struct cfg80211_registered_device *rdev,
1115 struct net_device **vlan)
1116{
1117 *vlan = NULL;
1118
1119 if (vlanattr) {
1120 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1121 if (!*vlan)
1122 return -ENODEV;
1123 if (!(*vlan)->ieee80211_ptr)
1124 return -EINVAL;
1125 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1126 return -EINVAL;
1127 }
1128 return 0;
1129}
1130
1131static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1132{
1133 struct cfg80211_registered_device *drv;
1134 int err;
1135 struct net_device *dev;
1136 struct station_parameters params;
1137 u8 *mac_addr = NULL;
1138
1139 memset(&params, 0, sizeof(params));
1140
1141 params.listen_interval = -1;
1142
1143 if (info->attrs[NL80211_ATTR_STA_AID])
1144 return -EINVAL;
1145
1146 if (!info->attrs[NL80211_ATTR_MAC])
1147 return -EINVAL;
1148
1149 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1150
1151 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1152 params.supported_rates =
1153 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1154 params.supported_rates_len =
1155 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1156 }
1157
1158 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1159 params.listen_interval =
1160 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1161
36aedc90
JM		 1162 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1163 params.ht_capa =
1164 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1165
5727ef1b
JB		 1166 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1167 &params.station_flags))
1168 return -EINVAL;
1169
2ec600d6
LCC		 1170 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1171 params.plink_action =
1172 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1173
bba95fef 1174 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1175 if (err)
1176 return err;
1177
1178 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1179 if (err)
1180 goto out;
1181
1182 if (!drv->ops->change_station) {
1183 err = -EOPNOTSUPP;
1184 goto out;
1185 }
1186
1187 rtnl_lock();
1188 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
1189 rtnl_unlock();
1190
1191 out:
1192 if (params.vlan)
1193 dev_put(params.vlan);
1194 cfg80211_put_dev(drv);
1195 dev_put(dev);
1196 return err;
1197}
1198
1199static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1200{
1201 struct cfg80211_registered_device *drv;
1202 int err;
1203 struct net_device *dev;
1204 struct station_parameters params;
1205 u8 *mac_addr = NULL;
1206
1207 memset(&params, 0, sizeof(params));
1208
1209 if (!info->attrs[NL80211_ATTR_MAC])
1210 return -EINVAL;
1211
1212 if (!info->attrs[NL80211_ATTR_STA_AID])
1213 return -EINVAL;
1214
1215 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1216 return -EINVAL;
1217
1218 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1219 return -EINVAL;
1220
1221 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1222 params.supported_rates =
1223 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1224 params.supported_rates_len =
1225 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1226 params.listen_interval =
1227 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
16f2e85d 1228 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
36aedc90
JM		 1229 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1230 params.ht_capa =
1231 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b
JB		 1232
1233 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1234 &params.station_flags))
1235 return -EINVAL;
1236
bba95fef 1237 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1238 if (err)
1239 return err;
1240
1241 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1242 if (err)
1243 goto out;
1244
1245 if (!drv->ops->add_station) {
1246 err = -EOPNOTSUPP;
1247 goto out;
1248 }
1249
1250 rtnl_lock();
1251 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
1252 rtnl_unlock();
1253
1254 out:
1255 if (params.vlan)
1256 dev_put(params.vlan);
1257 cfg80211_put_dev(drv);
1258 dev_put(dev);
1259 return err;
1260}
1261
1262static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1263{
1264 struct cfg80211_registered_device *drv;
1265 int err;
1266 struct net_device *dev;
1267 u8 *mac_addr = NULL;
1268
1269 if (info->attrs[NL80211_ATTR_MAC])
1270 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1271
bba95fef 1272 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1273 if (err)
1274 return err;
1275
1276 if (!drv->ops->del_station) {
1277 err = -EOPNOTSUPP;
1278 goto out;
1279 }
1280
1281 rtnl_lock();
1282 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1283 rtnl_unlock();
1284
1285 out:
1286 cfg80211_put_dev(drv);
1287 dev_put(dev);
1288 return err;
1289}
1290
2ec600d6
LCC		 1291static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1292 int flags, struct net_device *dev,
1293 u8 *dst, u8 *next_hop,
1294 struct mpath_info *pinfo)
1295{
1296 void *hdr;
1297 struct nlattr *pinfoattr;
1298
1299 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1300 if (!hdr)
1301 return -1;
1302
1303 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1304 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1305 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1306
1307 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1308 if (!pinfoattr)
1309 goto nla_put_failure;
1310 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1311 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1312 pinfo->frame_qlen);
1313 if (pinfo->filled & MPATH_INFO_DSN)
1314 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1315 pinfo->dsn);
1316 if (pinfo->filled & MPATH_INFO_METRIC)
1317 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1318 pinfo->metric);
1319 if (pinfo->filled & MPATH_INFO_EXPTIME)
1320 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1321 pinfo->exptime);
1322 if (pinfo->filled & MPATH_INFO_FLAGS)
1323 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1324 pinfo->flags);
1325 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1326 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1327 pinfo->discovery_timeout);
1328 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1329 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1330 pinfo->discovery_retries);
1331
1332 nla_nest_end(msg, pinfoattr);
1333
1334 return genlmsg_end(msg, hdr);
1335
1336 nla_put_failure:
bc3ed28c
TG		 1337 genlmsg_cancel(msg, hdr);
1338 return -EMSGSIZE;
2ec600d6
LCC		 1339}
1340
1341static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 1342 struct netlink_callback *cb)
2ec600d6 1343{
2ec600d6
LCC		 1344 struct mpath_info pinfo;
1345 struct cfg80211_registered_device *dev;
bba95fef 1346 struct net_device *netdev;
2ec600d6
LCC		 1347 u8 dst[ETH_ALEN];
1348 u8 next_hop[ETH_ALEN];
bba95fef
JB		 1349 int ifidx = cb->args[0];
1350 int path_idx = cb->args[1];
2ec600d6 1351 int err;
2ec600d6 1352
bba95fef
JB		 1353 if (!ifidx) {
1354 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1355 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1356 nl80211_policy);
1357 if (err)
1358 return err;
1359
1360 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1361 return -EINVAL;
1362
1363 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1364 if (!ifidx)
1365 return -EINVAL;
1366 }
1367
1368 netdev = dev_get_by_index(&init_net, ifidx);
1369 if (!netdev)
1370 return -ENODEV;
1371
1372 dev = cfg80211_get_dev_from_ifindex(ifidx);
1373 if (IS_ERR(dev)) {
1374 err = PTR_ERR(dev);
1375 goto out_put_netdev;
1376 }
1377
1378 if (!dev->ops->dump_mpath) {
1379 err = -ENOSYS;
1380 goto out_err;
1381 }
1382
1383 rtnl_lock();
1384
1385 while (1) {
1386 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1387 dst, next_hop, &pinfo);
1388 if (err == -ENOENT)
2ec600d6 1389 break;
bba95fef
JB		 1390 if (err)
1391 goto out_err_rtnl;
2ec600d6 1392
bba95fef
JB		 1393 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1394 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1395 netdev, dst, next_hop,
1396 &pinfo) < 0)
1397 goto out;
2ec600d6 1398
bba95fef 1399 path_idx++;
2ec600d6 1400 }
2ec600d6 1401
2ec600d6 1402
bba95fef
JB		 1403 out:
1404 cb->args[1] = path_idx;
1405 err = skb->len;
1406 out_err_rtnl:
1407 rtnl_unlock();
1408 out_err:
1409 cfg80211_put_dev(dev);
1410 out_put_netdev:
1411 dev_put(netdev);
1412
1413 return err;
2ec600d6
LCC		 1414}
1415
1416static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1417{
1418 struct cfg80211_registered_device *drv;
1419 int err;
1420 struct net_device *dev;
1421 struct mpath_info pinfo;
1422 struct sk_buff *msg;
1423 u8 *dst = NULL;
1424 u8 next_hop[ETH_ALEN];
1425
1426 memset(&pinfo, 0, sizeof(pinfo));
1427
1428 if (!info->attrs[NL80211_ATTR_MAC])
1429 return -EINVAL;
1430
1431 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1432
bba95fef 1433 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1434 if (err)
1435 return err;
1436
1437 if (!drv->ops->get_mpath) {
1438 err = -EOPNOTSUPP;
1439 goto out;
1440 }
1441
1442 rtnl_lock();
1443 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1444 rtnl_unlock();
1445
1446 if (err)
1447 goto out;
1448
1449 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1450 if (!msg)
1451 goto out;
1452
1453 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1454 dev, dst, next_hop, &pinfo) < 0)
1455 goto out_free;
1456
1457 err = genlmsg_unicast(msg, info->snd_pid);
1458 goto out;
1459
1460 out_free:
1461 nlmsg_free(msg);
1462
1463 out:
1464 cfg80211_put_dev(drv);
1465 dev_put(dev);
1466 return err;
1467}
1468
1469static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1470{
1471 struct cfg80211_registered_device *drv;
1472 int err;
1473 struct net_device *dev;
1474 u8 *dst = NULL;
1475 u8 *next_hop = NULL;
1476
1477 if (!info->attrs[NL80211_ATTR_MAC])
1478 return -EINVAL;
1479
1480 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1481 return -EINVAL;
1482
1483 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1484 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1485
bba95fef 1486 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1487 if (err)
1488 return err;
1489
1490 if (!drv->ops->change_mpath) {
1491 err = -EOPNOTSUPP;
1492 goto out;
1493 }
1494
1495 rtnl_lock();
1496 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1497 rtnl_unlock();
1498
1499 out:
1500 cfg80211_put_dev(drv);
1501 dev_put(dev);
1502 return err;
1503}
1504static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1505{
1506 struct cfg80211_registered_device *drv;
1507 int err;
1508 struct net_device *dev;
1509 u8 *dst = NULL;
1510 u8 *next_hop = NULL;
1511
1512 if (!info->attrs[NL80211_ATTR_MAC])
1513 return -EINVAL;
1514
1515 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1516 return -EINVAL;
1517
1518 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1519 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1520
bba95fef 1521 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1522 if (err)
1523 return err;
1524
1525 if (!drv->ops->add_mpath) {
1526 err = -EOPNOTSUPP;
1527 goto out;
1528 }
1529
1530 rtnl_lock();
1531 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1532 rtnl_unlock();
1533
1534 out:
1535 cfg80211_put_dev(drv);
1536 dev_put(dev);
1537 return err;
1538}
1539
1540static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1541{
1542 struct cfg80211_registered_device *drv;
1543 int err;
1544 struct net_device *dev;
1545 u8 *dst = NULL;
1546
1547 if (info->attrs[NL80211_ATTR_MAC])
1548 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1549
bba95fef 1550 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1551 if (err)
1552 return err;
1553
1554 if (!drv->ops->del_mpath) {
1555 err = -EOPNOTSUPP;
1556 goto out;
1557 }
1558
1559 rtnl_lock();
1560 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1561 rtnl_unlock();
1562
1563 out:
1564 cfg80211_put_dev(drv);
1565 dev_put(dev);
1566 return err;
1567}
1568
9f1ba906
JM		 1569static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1570{
1571 struct cfg80211_registered_device *drv;
1572 int err;
1573 struct net_device *dev;
1574 struct bss_parameters params;
1575
1576 memset(&params, 0, sizeof(params));
1577 /* default to not changing parameters */
1578 params.use_cts_prot = -1;
1579 params.use_short_preamble = -1;
1580 params.use_short_slot_time = -1;
1581
1582 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1583 params.use_cts_prot =
1584 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1585 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1586 params.use_short_preamble =
1587 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1588 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1589 params.use_short_slot_time =
1590 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
1591
1592 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1593 if (err)
1594 return err;
1595
1596 if (!drv->ops->change_bss) {
1597 err = -EOPNOTSUPP;
1598 goto out;
1599 }
1600
1601 rtnl_lock();
1602 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
1603 rtnl_unlock();
1604
1605 out:
1606 cfg80211_put_dev(drv);
1607 dev_put(dev);
1608 return err;
1609}
1610
b2e1b302
LR		 1611static const struct nla_policy
1612 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1613 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1614 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1615 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1616 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1617 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1618 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1619};
1620
1621static int parse_reg_rule(struct nlattr *tb[],
1622 struct ieee80211_reg_rule *reg_rule)
1623{
1624 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
1625 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
1626
1627 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1628 return -EINVAL;
1629 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1630 return -EINVAL;
1631 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1632 return -EINVAL;
1633 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1634 return -EINVAL;
1635 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1636 return -EINVAL;
1637
1638 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1639
1640 freq_range->start_freq_khz =
1641 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1642 freq_range->end_freq_khz =
1643 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1644 freq_range->max_bandwidth_khz =
1645 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1646
1647 power_rule->max_eirp =
1648 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1649
1650 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1651 power_rule->max_antenna_gain =
1652 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1653
1654 return 0;
1655}
1656
1657static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1658{
1659 int r;
1660 char *data = NULL;
1661
1662 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1663 return -EINVAL;
1664
1665 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1666
1667#ifdef CONFIG_WIRELESS_OLD_REGULATORY
1668 /* We ignore world regdom requests with the old regdom setup */
1669 if (is_world_regdom(data))
1670 return -EINVAL;
1671#endif
1672 mutex_lock(&cfg80211_drv_mutex);
1673 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, NULL);
1674 mutex_unlock(&cfg80211_drv_mutex);
1675 return r;
1676}
1677
1678static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
1679{
1680 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
1681 struct nlattr *nl_reg_rule;
1682 char *alpha2 = NULL;
1683 int rem_reg_rules = 0, r = 0;
1684 u32 num_rules = 0, rule_idx = 0, size_of_regd;
1685 struct ieee80211_regdomain *rd = NULL;
1686
1687 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1688 return -EINVAL;
1689
1690 if (!info->attrs[NL80211_ATTR_REG_RULES])
1691 return -EINVAL;
1692
1693 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1694
1695 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1696 rem_reg_rules) {
1697 num_rules++;
1698 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
1699 goto bad_reg;
1700 }
1701
1702 if (!reg_is_valid_request(alpha2))
1703 return -EINVAL;
1704
1705 size_of_regd = sizeof(struct ieee80211_regdomain) +
1706 (num_rules * sizeof(struct ieee80211_reg_rule));
1707
1708 rd = kzalloc(size_of_regd, GFP_KERNEL);
1709 if (!rd)
1710 return -ENOMEM;
1711
1712 rd->n_reg_rules = num_rules;
1713 rd->alpha2[0] = alpha2[0];
1714 rd->alpha2[1] = alpha2[1];
1715
1716 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1717 rem_reg_rules) {
1718 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1719 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
1720 reg_rule_policy);
1721 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
1722 if (r)
1723 goto bad_reg;
1724
1725 rule_idx++;
1726
1727 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
1728 goto bad_reg;
1729 }
1730
1731 BUG_ON(rule_idx != num_rules);
1732
1733 mutex_lock(&cfg80211_drv_mutex);
1734 r = set_regdom(rd);
1735 mutex_unlock(&cfg80211_drv_mutex);
1736 if (r)
1737 goto bad_reg;
1738
1739 return r;
1740
1741bad_reg:
1742 kfree(rd);
1743 return -EINVAL;
1744}
1745
55682965
JB		 1746static struct genl_ops nl80211_ops[] = {
1747 {
1748 .cmd = NL80211_CMD_GET_WIPHY,
1749 .doit = nl80211_get_wiphy,
1750 .dumpit = nl80211_dump_wiphy,
1751 .policy = nl80211_policy,
1752 /* can be retrieved by unprivileged users */
1753 },
1754 {
1755 .cmd = NL80211_CMD_SET_WIPHY,
1756 .doit = nl80211_set_wiphy,
1757 .policy = nl80211_policy,
1758 .flags = GENL_ADMIN_PERM,
1759 },
1760 {
1761 .cmd = NL80211_CMD_GET_INTERFACE,
1762 .doit = nl80211_get_interface,
1763 .dumpit = nl80211_dump_interface,
1764 .policy = nl80211_policy,
1765 /* can be retrieved by unprivileged users */
1766 },
1767 {
1768 .cmd = NL80211_CMD_SET_INTERFACE,
1769 .doit = nl80211_set_interface,
1770 .policy = nl80211_policy,
1771 .flags = GENL_ADMIN_PERM,
1772 },
1773 {
1774 .cmd = NL80211_CMD_NEW_INTERFACE,
1775 .doit = nl80211_new_interface,
1776 .policy = nl80211_policy,
1777 .flags = GENL_ADMIN_PERM,
1778 },
1779 {
1780 .cmd = NL80211_CMD_DEL_INTERFACE,
1781 .doit = nl80211_del_interface,
1782 .policy = nl80211_policy,
41ade00f
JB		 1783 .flags = GENL_ADMIN_PERM,
1784 },
1785 {
1786 .cmd = NL80211_CMD_GET_KEY,
1787 .doit = nl80211_get_key,
1788 .policy = nl80211_policy,
1789 .flags = GENL_ADMIN_PERM,
1790 },
1791 {
1792 .cmd = NL80211_CMD_SET_KEY,
1793 .doit = nl80211_set_key,
1794 .policy = nl80211_policy,
1795 .flags = GENL_ADMIN_PERM,
1796 },
1797 {
1798 .cmd = NL80211_CMD_NEW_KEY,
1799 .doit = nl80211_new_key,
1800 .policy = nl80211_policy,
1801 .flags = GENL_ADMIN_PERM,
1802 },
1803 {
1804 .cmd = NL80211_CMD_DEL_KEY,
1805 .doit = nl80211_del_key,
1806 .policy = nl80211_policy,
55682965
JB		 1807 .flags = GENL_ADMIN_PERM,
1808 },
ed1b6cc7
JB		 1809 {
1810 .cmd = NL80211_CMD_SET_BEACON,
1811 .policy = nl80211_policy,
1812 .flags = GENL_ADMIN_PERM,
1813 .doit = nl80211_addset_beacon,
1814 },
1815 {
1816 .cmd = NL80211_CMD_NEW_BEACON,
1817 .policy = nl80211_policy,
1818 .flags = GENL_ADMIN_PERM,
1819 .doit = nl80211_addset_beacon,
1820 },
1821 {
1822 .cmd = NL80211_CMD_DEL_BEACON,
1823 .policy = nl80211_policy,
1824 .flags = GENL_ADMIN_PERM,
1825 .doit = nl80211_del_beacon,
1826 },
5727ef1b
JB		 1827 {
1828 .cmd = NL80211_CMD_GET_STATION,
1829 .doit = nl80211_get_station,
2ec600d6 1830 .dumpit = nl80211_dump_station,
5727ef1b
JB		 1831 .policy = nl80211_policy,
1832 .flags = GENL_ADMIN_PERM,
1833 },
1834 {
1835 .cmd = NL80211_CMD_SET_STATION,
1836 .doit = nl80211_set_station,
1837 .policy = nl80211_policy,
1838 .flags = GENL_ADMIN_PERM,
1839 },
1840 {
1841 .cmd = NL80211_CMD_NEW_STATION,
1842 .doit = nl80211_new_station,
1843 .policy = nl80211_policy,
1844 .flags = GENL_ADMIN_PERM,
1845 },
1846 {
1847 .cmd = NL80211_CMD_DEL_STATION,
1848 .doit = nl80211_del_station,
1849 .policy = nl80211_policy,
2ec600d6
LCC		 1850 .flags = GENL_ADMIN_PERM,
1851 },
1852 {
1853 .cmd = NL80211_CMD_GET_MPATH,
1854 .doit = nl80211_get_mpath,
1855 .dumpit = nl80211_dump_mpath,
1856 .policy = nl80211_policy,
1857 .flags = GENL_ADMIN_PERM,
1858 },
1859 {
1860 .cmd = NL80211_CMD_SET_MPATH,
1861 .doit = nl80211_set_mpath,
1862 .policy = nl80211_policy,
1863 .flags = GENL_ADMIN_PERM,
1864 },
1865 {
1866 .cmd = NL80211_CMD_NEW_MPATH,
1867 .doit = nl80211_new_mpath,
1868 .policy = nl80211_policy,
1869 .flags = GENL_ADMIN_PERM,
1870 },
1871 {
1872 .cmd = NL80211_CMD_DEL_MPATH,
1873 .doit = nl80211_del_mpath,
1874 .policy = nl80211_policy,
9f1ba906
JM		 1875 .flags = GENL_ADMIN_PERM,
1876 },
1877 {
1878 .cmd = NL80211_CMD_SET_BSS,
1879 .doit = nl80211_set_bss,
1880 .policy = nl80211_policy,
b2e1b302
LR		 1881 .flags = GENL_ADMIN_PERM,
1882 },
1883 {
1884 .cmd = NL80211_CMD_SET_REG,
1885 .doit = nl80211_set_reg,
1886 .policy = nl80211_policy,
1887 .flags = GENL_ADMIN_PERM,
1888 },
1889 {
1890 .cmd = NL80211_CMD_REQ_SET_REG,
1891 .doit = nl80211_req_set_reg,
1892 .policy = nl80211_policy,
5727ef1b
JB		 1893 .flags = GENL_ADMIN_PERM,
1894 },
55682965
JB		 1895};
1896
1897/* multicast groups */
1898static struct genl_multicast_group nl80211_config_mcgrp = {
1899 .name = "config",
1900};
1901
1902/* notification functions */
1903
1904void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
1905{
1906 struct sk_buff *msg;
1907
1908 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1909 if (!msg)
1910 return;
1911
1912 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
1913 nlmsg_free(msg);
1914 return;
1915 }
1916
1917 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
1918}
1919
1920/* initialisation/exit functions */
1921
1922int nl80211_init(void)
1923{
1924 int err, i;
1925
1926 err = genl_register_family(&nl80211_fam);
1927 if (err)
1928 return err;
1929
1930 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
1931 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
1932 if (err)
1933 goto err_out;
1934 }
1935
1936 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
1937 if (err)
1938 goto err_out;
1939
1940 return 0;
1941 err_out:
1942 genl_unregister_family(&nl80211_fam);
1943 return err;
1944}
1945
1946void nl80211_exit(void)
1947{
1948 genl_unregister_family(&nl80211_fam);
1949}
ubuntu-bionic-kernel mirror