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cfg80211: show interface type
[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
55682965
JB		 425 if (info->attrs[NL80211_ATTR_IFTYPE]) {
426 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
427 if (type > NL80211_IFTYPE_MAX)
428 return -EINVAL;
429 } else
430 return -EINVAL;
431
bba95fef 432 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 433 if (err)
434 return err;
435 ifindex = dev->ifindex;
436 dev_put(dev);
437
f59ac048
LR		 438 if (!drv->ops->change_virtual_intf ||
439 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 440 err = -EOPNOTSUPP;
441 goto unlock;
442 }
443
2ec600d6
LCC		 444 if (type == NL80211_IFTYPE_MESH_POINT &&
445 info->attrs[NL80211_ATTR_MESH_ID]) {
446 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
447 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
448 }
449
55682965 450 rtnl_lock();
66f7ac50
MW		 451 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
452 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
453 &flags);
454 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
2ec600d6 455 type, err ? NULL : &flags, &params);
60719ffd
JB		 456
457 dev = __dev_get_by_index(&init_net, ifindex);
458 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
459
55682965
JB		 460 rtnl_unlock();
461
462 unlock:
463 cfg80211_put_dev(drv);
464 return err;
465}
466
467static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
468{
469 struct cfg80211_registered_device *drv;
2ec600d6 470 struct vif_params params;
55682965
JB		 471 int err;
472 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 473 u32 flags;
55682965 474
2ec600d6
LCC		 475 memset(&params, 0, sizeof(params));
476
55682965
JB		 477 if (!info->attrs[NL80211_ATTR_IFNAME])
478 return -EINVAL;
479
480 if (info->attrs[NL80211_ATTR_IFTYPE]) {
481 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
482 if (type > NL80211_IFTYPE_MAX)
483 return -EINVAL;
484 }
485
486 drv = cfg80211_get_dev_from_info(info);
487 if (IS_ERR(drv))
488 return PTR_ERR(drv);
489
f59ac048
LR		 490 if (!drv->ops->add_virtual_intf ||
491 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 492 err = -EOPNOTSUPP;
493 goto unlock;
494 }
495
2ec600d6
LCC		 496 if (type == NL80211_IFTYPE_MESH_POINT &&
497 info->attrs[NL80211_ATTR_MESH_ID]) {
498 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
499 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
500 }
501
55682965 502 rtnl_lock();
66f7ac50
MW		 503 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
504 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
505 &flags);
55682965 506 err = drv->ops->add_virtual_intf(&drv->wiphy,
66f7ac50 507 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 508 type, err ? NULL : &flags, &params);
55682965
JB		 509 rtnl_unlock();
510
2ec600d6 511
55682965
JB		 512 unlock:
513 cfg80211_put_dev(drv);
514 return err;
515}
516
517static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
518{
519 struct cfg80211_registered_device *drv;
520 int ifindex, err;
521 struct net_device *dev;
522
bba95fef 523 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 524 if (err)
525 return err;
526 ifindex = dev->ifindex;
527 dev_put(dev);
528
529 if (!drv->ops->del_virtual_intf) {
530 err = -EOPNOTSUPP;
531 goto out;
532 }
533
534 rtnl_lock();
535 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
536 rtnl_unlock();
537
538 out:
539 cfg80211_put_dev(drv);
540 return err;
541}
542
41ade00f
JB		 543struct get_key_cookie {
544 struct sk_buff *msg;
545 int error;
546};
547
548static void get_key_callback(void *c, struct key_params *params)
549{
550 struct get_key_cookie *cookie = c;
551
552 if (params->key)
553 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
554 params->key_len, params->key);
555
556 if (params->seq)
557 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
558 params->seq_len, params->seq);
559
560 if (params->cipher)
561 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
562 params->cipher);
563
564 return;
565 nla_put_failure:
566 cookie->error = 1;
567}
568
569static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
570{
571 struct cfg80211_registered_device *drv;
572 int err;
573 struct net_device *dev;
574 u8 key_idx = 0;
575 u8 *mac_addr = NULL;
576 struct get_key_cookie cookie = {
577 .error = 0,
578 };
579 void *hdr;
580 struct sk_buff *msg;
581
582 if (info->attrs[NL80211_ATTR_KEY_IDX])
583 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
584
585 if (key_idx > 3)
586 return -EINVAL;
587
588 if (info->attrs[NL80211_ATTR_MAC])
589 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
590
bba95fef 591 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 592 if (err)
593 return err;
594
595 if (!drv->ops->get_key) {
596 err = -EOPNOTSUPP;
597 goto out;
598 }
599
600 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
601 if (!msg) {
602 err = -ENOMEM;
603 goto out;
604 }
605
606 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
607 NL80211_CMD_NEW_KEY);
608
609 if (IS_ERR(hdr)) {
610 err = PTR_ERR(hdr);
611 goto out;
612 }
613
614 cookie.msg = msg;
615
616 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
617 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
618 if (mac_addr)
619 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
620
621 rtnl_lock();
622 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
623 &cookie, get_key_callback);
624 rtnl_unlock();
625
626 if (err)
627 goto out;
628
629 if (cookie.error)
630 goto nla_put_failure;
631
632 genlmsg_end(msg, hdr);
633 err = genlmsg_unicast(msg, info->snd_pid);
634 goto out;
635
636 nla_put_failure:
637 err = -ENOBUFS;
638 nlmsg_free(msg);
639 out:
640 cfg80211_put_dev(drv);
641 dev_put(dev);
642 return err;
643}
644
645static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
646{
647 struct cfg80211_registered_device *drv;
648 int err;
649 struct net_device *dev;
650 u8 key_idx;
651
652 if (!info->attrs[NL80211_ATTR_KEY_IDX])
653 return -EINVAL;
654
655 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
656
657 if (key_idx > 3)
658 return -EINVAL;
659
660 /* currently only support setting default key */
661 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
662 return -EINVAL;
663
bba95fef 664 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 665 if (err)
666 return err;
667
668 if (!drv->ops->set_default_key) {
669 err = -EOPNOTSUPP;
670 goto out;
671 }
672
673 rtnl_lock();
674 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
675 rtnl_unlock();
676
677 out:
678 cfg80211_put_dev(drv);
679 dev_put(dev);
680 return err;
681}
682
683static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
684{
685 struct cfg80211_registered_device *drv;
686 int err;
687 struct net_device *dev;
688 struct key_params params;
689 u8 key_idx = 0;
690 u8 *mac_addr = NULL;
691
692 memset(&params, 0, sizeof(params));
693
694 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
695 return -EINVAL;
696
697 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
698 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
699 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
700 }
701
702 if (info->attrs[NL80211_ATTR_KEY_IDX])
703 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
704
705 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
706
707 if (info->attrs[NL80211_ATTR_MAC])
708 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
709
710 if (key_idx > 3)
711 return -EINVAL;
712
713 /*
714 * Disallow pairwise keys with non-zero index unless it's WEP
715 * (because current deployments use pairwise WEP keys with
716 * non-zero indizes but 802.11i clearly specifies to use zero)
717 */
718 if (mac_addr && key_idx &&
719 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
720 params.cipher != WLAN_CIPHER_SUITE_WEP104)
721 return -EINVAL;
722
723 /* TODO: add definitions for the lengths to linux/ieee80211.h */
724 switch (params.cipher) {
725 case WLAN_CIPHER_SUITE_WEP40:
726 if (params.key_len != 5)
727 return -EINVAL;
728 break;
729 case WLAN_CIPHER_SUITE_TKIP:
730 if (params.key_len != 32)
731 return -EINVAL;
732 break;
733 case WLAN_CIPHER_SUITE_CCMP:
734 if (params.key_len != 16)
735 return -EINVAL;
736 break;
737 case WLAN_CIPHER_SUITE_WEP104:
738 if (params.key_len != 13)
739 return -EINVAL;
740 break;
741 default:
742 return -EINVAL;
743 }
744
bba95fef 745 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 746 if (err)
747 return err;
748
749 if (!drv->ops->add_key) {
750 err = -EOPNOTSUPP;
751 goto out;
752 }
753
754 rtnl_lock();
755 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
756 rtnl_unlock();
757
758 out:
759 cfg80211_put_dev(drv);
760 dev_put(dev);
761 return err;
762}
763
764static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
765{
766 struct cfg80211_registered_device *drv;
767 int err;
768 struct net_device *dev;
769 u8 key_idx = 0;
770 u8 *mac_addr = NULL;
771
772 if (info->attrs[NL80211_ATTR_KEY_IDX])
773 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
774
775 if (key_idx > 3)
776 return -EINVAL;
777
778 if (info->attrs[NL80211_ATTR_MAC])
779 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
780
bba95fef 781 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 782 if (err)
783 return err;
784
785 if (!drv->ops->del_key) {
786 err = -EOPNOTSUPP;
787 goto out;
788 }
789
790 rtnl_lock();
791 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
792 rtnl_unlock();
793
794 out:
795 cfg80211_put_dev(drv);
796 dev_put(dev);
797 return err;
798}
799
ed1b6cc7
JB		 800static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
801{
802 int (*call)(struct wiphy *wiphy, struct net_device *dev,
803 struct beacon_parameters *info);
804 struct cfg80211_registered_device *drv;
805 int err;
806 struct net_device *dev;
807 struct beacon_parameters params;
808 int haveinfo = 0;
809
bba95fef 810 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 811 if (err)
812 return err;
813
814 switch (info->genlhdr->cmd) {
815 case NL80211_CMD_NEW_BEACON:
816 /* these are required for NEW_BEACON */
817 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
818 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
819 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
820 err = -EINVAL;
821 goto out;
822 }
823
824 call = drv->ops->add_beacon;
825 break;
826 case NL80211_CMD_SET_BEACON:
827 call = drv->ops->set_beacon;
828 break;
829 default:
830 WARN_ON(1);
831 err = -EOPNOTSUPP;
832 goto out;
833 }
834
835 if (!call) {
836 err = -EOPNOTSUPP;
837 goto out;
838 }
839
840 memset(&params, 0, sizeof(params));
841
842 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
843 params.interval =
844 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
845 haveinfo = 1;
846 }
847
848 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
849 params.dtim_period =
850 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
851 haveinfo = 1;
852 }
853
854 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
855 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
856 params.head_len =
857 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
858 haveinfo = 1;
859 }
860
861 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
862 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
863 params.tail_len =
864 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
865 haveinfo = 1;
866 }
867
868 if (!haveinfo) {
869 err = -EINVAL;
870 goto out;
871 }
872
873 rtnl_lock();
874 err = call(&drv->wiphy, dev, &params);
875 rtnl_unlock();
876
877 out:
878 cfg80211_put_dev(drv);
879 dev_put(dev);
880 return err;
881}
882
883static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
884{
885 struct cfg80211_registered_device *drv;
886 int err;
887 struct net_device *dev;
888
bba95fef 889 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 890 if (err)
891 return err;
892
893 if (!drv->ops->del_beacon) {
894 err = -EOPNOTSUPP;
895 goto out;
896 }
897
898 rtnl_lock();
899 err = drv->ops->del_beacon(&drv->wiphy, dev);
900 rtnl_unlock();
901
902 out:
903 cfg80211_put_dev(drv);
904 dev_put(dev);
905 return err;
906}
907
5727ef1b
JB		 908static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
909 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
910 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
911 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
912};
913
914static int parse_station_flags(struct nlattr *nla, u32 *staflags)
915{
916 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
917 int flag;
918
919 *staflags = 0;
920
921 if (!nla)
922 return 0;
923
924 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
925 nla, sta_flags_policy))
926 return -EINVAL;
927
928 *staflags = STATION_FLAG_CHANGED;
929
930 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
931 if (flags[flag])
932 *staflags |= (1<<flag);
933
934 return 0;
935}
936
fd5b74dc
JB		 937static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
938 int flags, struct net_device *dev,
2ec600d6 939 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 940{
941 void *hdr;
2ec600d6 942 struct nlattr *sinfoattr;
fd5b74dc
JB		 943
944 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
945 if (!hdr)
946 return -1;
947
948 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
949 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
950
2ec600d6
LCC		 951 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
952 if (!sinfoattr)
fd5b74dc 953 goto nla_put_failure;
2ec600d6
LCC		 954 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
955 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
956 sinfo->inactive_time);
957 if (sinfo->filled & STATION_INFO_RX_BYTES)
958 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
959 sinfo->rx_bytes);
960 if (sinfo->filled & STATION_INFO_TX_BYTES)
961 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
962 sinfo->tx_bytes);
963 if (sinfo->filled & STATION_INFO_LLID)
964 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
965 sinfo->llid);
966 if (sinfo->filled & STATION_INFO_PLID)
967 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
968 sinfo->plid);
969 if (sinfo->filled & STATION_INFO_PLINK_STATE)
970 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
971 sinfo->plink_state);
972
973 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 974
975 return genlmsg_end(msg, hdr);
976
977 nla_put_failure:
bc3ed28c
TG		 978 genlmsg_cancel(msg, hdr);
979 return -EMSGSIZE;
fd5b74dc
JB		 980}
981
2ec600d6 982static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 983 struct netlink_callback *cb)
2ec600d6 984{
2ec600d6
LCC		 985 struct station_info sinfo;
986 struct cfg80211_registered_device *dev;
bba95fef 987 struct net_device *netdev;
2ec600d6 988 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 989 int ifidx = cb->args[0];
990 int sta_idx = cb->args[1];
2ec600d6 991 int err;
2ec600d6 992
bba95fef
JB		 993 if (!ifidx) {
994 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
995 nl80211_fam.attrbuf, nl80211_fam.maxattr,
996 nl80211_policy);
997 if (err)
998 return err;
2ec600d6 999
bba95fef
JB		 1000 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1001 return -EINVAL;
2ec600d6 1002
bba95fef
JB		 1003 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1004 if (!ifidx)
1005 return -EINVAL;
2ec600d6 1006 }
2ec600d6 1007
bba95fef
JB		 1008 netdev = dev_get_by_index(&init_net, ifidx);
1009 if (!netdev)
1010 return -ENODEV;
2ec600d6 1011
bba95fef
JB		 1012 dev = cfg80211_get_dev_from_ifindex(ifidx);
1013 if (IS_ERR(dev)) {
1014 err = PTR_ERR(dev);
1015 goto out_put_netdev;
1016 }
1017
1018 if (!dev->ops->dump_station) {
1019 err = -ENOSYS;
1020 goto out_err;
1021 }
1022
1023 rtnl_lock();
1024
1025 while (1) {
1026 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1027 mac_addr, &sinfo);
1028 if (err == -ENOENT)
1029 break;
1030 if (err)
1031 goto out_err_rtnl;
1032
1033 if (nl80211_send_station(skb,
1034 NETLINK_CB(cb->skb).pid,
1035 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1036 netdev, mac_addr,
1037 &sinfo) < 0)
1038 goto out;
1039
1040 sta_idx++;
1041 }
1042
1043
1044 out:
1045 cb->args[1] = sta_idx;
1046 err = skb->len;
1047 out_err_rtnl:
1048 rtnl_unlock();
1049 out_err:
1050 cfg80211_put_dev(dev);
1051 out_put_netdev:
1052 dev_put(netdev);
1053
1054 return err;
2ec600d6 1055}
fd5b74dc 1056
5727ef1b
JB		 1057static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1058{
fd5b74dc
JB		 1059 struct cfg80211_registered_device *drv;
1060 int err;
1061 struct net_device *dev;
2ec600d6 1062 struct station_info sinfo;
fd5b74dc
JB		 1063 struct sk_buff *msg;
1064 u8 *mac_addr = NULL;
1065
2ec600d6 1066 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1067
1068 if (!info->attrs[NL80211_ATTR_MAC])
1069 return -EINVAL;
1070
1071 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1072
bba95fef 1073 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
fd5b74dc
JB		 1074 if (err)
1075 return err;
1076
1077 if (!drv->ops->get_station) {
1078 err = -EOPNOTSUPP;
1079 goto out;
1080 }
1081
1082 rtnl_lock();
2ec600d6 1083 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
fd5b74dc
JB		 1084 rtnl_unlock();
1085
2ec600d6
LCC		 1086 if (err)
1087 goto out;
1088
fd5b74dc
JB		 1089 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1090 if (!msg)
1091 goto out;
1092
1093 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1094 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1095 goto out_free;
1096
1097 err = genlmsg_unicast(msg, info->snd_pid);
1098 goto out;
1099
1100 out_free:
1101 nlmsg_free(msg);
1102
1103 out:
1104 cfg80211_put_dev(drv);
1105 dev_put(dev);
1106 return err;
5727ef1b
JB		 1107}
1108
1109/*
1110 * Get vlan interface making sure it is on the right wiphy.
1111 */
1112static int get_vlan(struct nlattr *vlanattr,
1113 struct cfg80211_registered_device *rdev,
1114 struct net_device **vlan)
1115{
1116 *vlan = NULL;
1117
1118 if (vlanattr) {
1119 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1120 if (!*vlan)
1121 return -ENODEV;
1122 if (!(*vlan)->ieee80211_ptr)
1123 return -EINVAL;
1124 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1125 return -EINVAL;
1126 }
1127 return 0;
1128}
1129
1130static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1131{
1132 struct cfg80211_registered_device *drv;
1133 int err;
1134 struct net_device *dev;
1135 struct station_parameters params;
1136 u8 *mac_addr = NULL;
1137
1138 memset(&params, 0, sizeof(params));
1139
1140 params.listen_interval = -1;
1141
1142 if (info->attrs[NL80211_ATTR_STA_AID])
1143 return -EINVAL;
1144
1145 if (!info->attrs[NL80211_ATTR_MAC])
1146 return -EINVAL;
1147
1148 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1149
1150 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1151 params.supported_rates =
1152 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1153 params.supported_rates_len =
1154 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1155 }
1156
1157 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1158 params.listen_interval =
1159 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1160
36aedc90
JM		 1161 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1162 params.ht_capa =
1163 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1164
5727ef1b
JB		 1165 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1166 &params.station_flags))
1167 return -EINVAL;
1168
2ec600d6
LCC		 1169 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1170 params.plink_action =
1171 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1172
bba95fef 1173 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1174 if (err)
1175 return err;
1176
1177 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1178 if (err)
1179 goto out;
1180
1181 if (!drv->ops->change_station) {
1182 err = -EOPNOTSUPP;
1183 goto out;
1184 }
1185
1186 rtnl_lock();
1187 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
1188 rtnl_unlock();
1189
1190 out:
1191 if (params.vlan)
1192 dev_put(params.vlan);
1193 cfg80211_put_dev(drv);
1194 dev_put(dev);
1195 return err;
1196}
1197
1198static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1199{
1200 struct cfg80211_registered_device *drv;
1201 int err;
1202 struct net_device *dev;
1203 struct station_parameters params;
1204 u8 *mac_addr = NULL;
1205
1206 memset(&params, 0, sizeof(params));
1207
1208 if (!info->attrs[NL80211_ATTR_MAC])
1209 return -EINVAL;
1210
1211 if (!info->attrs[NL80211_ATTR_STA_AID])
1212 return -EINVAL;
1213
1214 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1215 return -EINVAL;
1216
1217 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1218 return -EINVAL;
1219
1220 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1221 params.supported_rates =
1222 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1223 params.supported_rates_len =
1224 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1225 params.listen_interval =
1226 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
16f2e85d 1227 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
36aedc90
JM		 1228 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1229 params.ht_capa =
1230 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b
JB		 1231
1232 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1233 &params.station_flags))
1234 return -EINVAL;
1235
bba95fef 1236 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1237 if (err)
1238 return err;
1239
1240 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1241 if (err)
1242 goto out;
1243
1244 if (!drv->ops->add_station) {
1245 err = -EOPNOTSUPP;
1246 goto out;
1247 }
1248
1249 rtnl_lock();
1250 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
1251 rtnl_unlock();
1252
1253 out:
1254 if (params.vlan)
1255 dev_put(params.vlan);
1256 cfg80211_put_dev(drv);
1257 dev_put(dev);
1258 return err;
1259}
1260
1261static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1262{
1263 struct cfg80211_registered_device *drv;
1264 int err;
1265 struct net_device *dev;
1266 u8 *mac_addr = NULL;
1267
1268 if (info->attrs[NL80211_ATTR_MAC])
1269 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1270
bba95fef 1271 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1272 if (err)
1273 return err;
1274
1275 if (!drv->ops->del_station) {
1276 err = -EOPNOTSUPP;
1277 goto out;
1278 }
1279
1280 rtnl_lock();
1281 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1282 rtnl_unlock();
1283
1284 out:
1285 cfg80211_put_dev(drv);
1286 dev_put(dev);
1287 return err;
1288}
1289
2ec600d6
LCC		 1290static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1291 int flags, struct net_device *dev,
1292 u8 *dst, u8 *next_hop,
1293 struct mpath_info *pinfo)
1294{
1295 void *hdr;
1296 struct nlattr *pinfoattr;
1297
1298 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1299 if (!hdr)
1300 return -1;
1301
1302 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1303 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1304 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1305
1306 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1307 if (!pinfoattr)
1308 goto nla_put_failure;
1309 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1310 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1311 pinfo->frame_qlen);
1312 if (pinfo->filled & MPATH_INFO_DSN)
1313 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1314 pinfo->dsn);
1315 if (pinfo->filled & MPATH_INFO_METRIC)
1316 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1317 pinfo->metric);
1318 if (pinfo->filled & MPATH_INFO_EXPTIME)
1319 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1320 pinfo->exptime);
1321 if (pinfo->filled & MPATH_INFO_FLAGS)
1322 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1323 pinfo->flags);
1324 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1325 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1326 pinfo->discovery_timeout);
1327 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1328 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1329 pinfo->discovery_retries);
1330
1331 nla_nest_end(msg, pinfoattr);
1332
1333 return genlmsg_end(msg, hdr);
1334
1335 nla_put_failure:
bc3ed28c
TG		 1336 genlmsg_cancel(msg, hdr);
1337 return -EMSGSIZE;
2ec600d6
LCC		 1338}
1339
1340static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 1341 struct netlink_callback *cb)
2ec600d6 1342{
2ec600d6
LCC		 1343 struct mpath_info pinfo;
1344 struct cfg80211_registered_device *dev;
bba95fef 1345 struct net_device *netdev;
2ec600d6
LCC		 1346 u8 dst[ETH_ALEN];
1347 u8 next_hop[ETH_ALEN];
bba95fef
JB		 1348 int ifidx = cb->args[0];
1349 int path_idx = cb->args[1];
2ec600d6 1350 int err;
2ec600d6 1351
bba95fef
JB		 1352 if (!ifidx) {
1353 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1354 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1355 nl80211_policy);
1356 if (err)
1357 return err;
1358
1359 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1360 return -EINVAL;
1361
1362 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1363 if (!ifidx)
1364 return -EINVAL;
1365 }
1366
1367 netdev = dev_get_by_index(&init_net, ifidx);
1368 if (!netdev)
1369 return -ENODEV;
1370
1371 dev = cfg80211_get_dev_from_ifindex(ifidx);
1372 if (IS_ERR(dev)) {
1373 err = PTR_ERR(dev);
1374 goto out_put_netdev;
1375 }
1376
1377 if (!dev->ops->dump_mpath) {
1378 err = -ENOSYS;
1379 goto out_err;
1380 }
1381
1382 rtnl_lock();
1383
1384 while (1) {
1385 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1386 dst, next_hop, &pinfo);
1387 if (err == -ENOENT)
2ec600d6 1388 break;
bba95fef
JB		 1389 if (err)
1390 goto out_err_rtnl;
2ec600d6 1391
bba95fef
JB		 1392 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1393 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1394 netdev, dst, next_hop,
1395 &pinfo) < 0)
1396 goto out;
2ec600d6 1397
bba95fef 1398 path_idx++;
2ec600d6 1399 }
2ec600d6 1400
2ec600d6 1401
bba95fef
JB		 1402 out:
1403 cb->args[1] = path_idx;
1404 err = skb->len;
1405 out_err_rtnl:
1406 rtnl_unlock();
1407 out_err:
1408 cfg80211_put_dev(dev);
1409 out_put_netdev:
1410 dev_put(netdev);
1411
1412 return err;
2ec600d6
LCC		 1413}
1414
1415static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1416{
1417 struct cfg80211_registered_device *drv;
1418 int err;
1419 struct net_device *dev;
1420 struct mpath_info pinfo;
1421 struct sk_buff *msg;
1422 u8 *dst = NULL;
1423 u8 next_hop[ETH_ALEN];
1424
1425 memset(&pinfo, 0, sizeof(pinfo));
1426
1427 if (!info->attrs[NL80211_ATTR_MAC])
1428 return -EINVAL;
1429
1430 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1431
bba95fef 1432 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1433 if (err)
1434 return err;
1435
1436 if (!drv->ops->get_mpath) {
1437 err = -EOPNOTSUPP;
1438 goto out;
1439 }
1440
1441 rtnl_lock();
1442 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1443 rtnl_unlock();
1444
1445 if (err)
1446 goto out;
1447
1448 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1449 if (!msg)
1450 goto out;
1451
1452 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1453 dev, dst, next_hop, &pinfo) < 0)
1454 goto out_free;
1455
1456 err = genlmsg_unicast(msg, info->snd_pid);
1457 goto out;
1458
1459 out_free:
1460 nlmsg_free(msg);
1461
1462 out:
1463 cfg80211_put_dev(drv);
1464 dev_put(dev);
1465 return err;
1466}
1467
1468static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1469{
1470 struct cfg80211_registered_device *drv;
1471 int err;
1472 struct net_device *dev;
1473 u8 *dst = NULL;
1474 u8 *next_hop = NULL;
1475
1476 if (!info->attrs[NL80211_ATTR_MAC])
1477 return -EINVAL;
1478
1479 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1480 return -EINVAL;
1481
1482 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1483 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1484
bba95fef 1485 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1486 if (err)
1487 return err;
1488
1489 if (!drv->ops->change_mpath) {
1490 err = -EOPNOTSUPP;
1491 goto out;
1492 }
1493
1494 rtnl_lock();
1495 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1496 rtnl_unlock();
1497
1498 out:
1499 cfg80211_put_dev(drv);
1500 dev_put(dev);
1501 return err;
1502}
1503static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1504{
1505 struct cfg80211_registered_device *drv;
1506 int err;
1507 struct net_device *dev;
1508 u8 *dst = NULL;
1509 u8 *next_hop = NULL;
1510
1511 if (!info->attrs[NL80211_ATTR_MAC])
1512 return -EINVAL;
1513
1514 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1515 return -EINVAL;
1516
1517 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1518 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1519
bba95fef 1520 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1521 if (err)
1522 return err;
1523
1524 if (!drv->ops->add_mpath) {
1525 err = -EOPNOTSUPP;
1526 goto out;
1527 }
1528
1529 rtnl_lock();
1530 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1531 rtnl_unlock();
1532
1533 out:
1534 cfg80211_put_dev(drv);
1535 dev_put(dev);
1536 return err;
1537}
1538
1539static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1540{
1541 struct cfg80211_registered_device *drv;
1542 int err;
1543 struct net_device *dev;
1544 u8 *dst = NULL;
1545
1546 if (info->attrs[NL80211_ATTR_MAC])
1547 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1548
bba95fef 1549 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1550 if (err)
1551 return err;
1552
1553 if (!drv->ops->del_mpath) {
1554 err = -EOPNOTSUPP;
1555 goto out;
1556 }
1557
1558 rtnl_lock();
1559 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1560 rtnl_unlock();
1561
1562 out:
1563 cfg80211_put_dev(drv);
1564 dev_put(dev);
1565 return err;
1566}
1567
9f1ba906
JM		 1568static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1569{
1570 struct cfg80211_registered_device *drv;
1571 int err;
1572 struct net_device *dev;
1573 struct bss_parameters params;
1574
1575 memset(&params, 0, sizeof(params));
1576 /* default to not changing parameters */
1577 params.use_cts_prot = -1;
1578 params.use_short_preamble = -1;
1579 params.use_short_slot_time = -1;
1580
1581 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1582 params.use_cts_prot =
1583 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1584 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1585 params.use_short_preamble =
1586 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1587 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1588 params.use_short_slot_time =
1589 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
1590
1591 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1592 if (err)
1593 return err;
1594
1595 if (!drv->ops->change_bss) {
1596 err = -EOPNOTSUPP;
1597 goto out;
1598 }
1599
1600 rtnl_lock();
1601 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
1602 rtnl_unlock();
1603
1604 out:
1605 cfg80211_put_dev(drv);
1606 dev_put(dev);
1607 return err;
1608}
1609
b2e1b302
LR		 1610static const struct nla_policy
1611 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1612 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1613 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1614 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1615 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1616 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1617 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1618};
1619
1620static int parse_reg_rule(struct nlattr *tb[],
1621 struct ieee80211_reg_rule *reg_rule)
1622{
1623 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
1624 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
1625
1626 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1627 return -EINVAL;
1628 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1629 return -EINVAL;
1630 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1631 return -EINVAL;
1632 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1633 return -EINVAL;
1634 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1635 return -EINVAL;
1636
1637 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1638
1639 freq_range->start_freq_khz =
1640 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1641 freq_range->end_freq_khz =
1642 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1643 freq_range->max_bandwidth_khz =
1644 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1645
1646 power_rule->max_eirp =
1647 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1648
1649 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1650 power_rule->max_antenna_gain =
1651 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1652
1653 return 0;
1654}
1655
1656static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1657{
1658 int r;
1659 char *data = NULL;
1660
1661 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1662 return -EINVAL;
1663
1664 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1665
1666#ifdef CONFIG_WIRELESS_OLD_REGULATORY
1667 /* We ignore world regdom requests with the old regdom setup */
1668 if (is_world_regdom(data))
1669 return -EINVAL;
1670#endif
1671 mutex_lock(&cfg80211_drv_mutex);
1672 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, NULL);
1673 mutex_unlock(&cfg80211_drv_mutex);
1674 return r;
1675}
1676
1677static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
1678{
1679 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
1680 struct nlattr *nl_reg_rule;
1681 char *alpha2 = NULL;
1682 int rem_reg_rules = 0, r = 0;
1683 u32 num_rules = 0, rule_idx = 0, size_of_regd;
1684 struct ieee80211_regdomain *rd = NULL;
1685
1686 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1687 return -EINVAL;
1688
1689 if (!info->attrs[NL80211_ATTR_REG_RULES])
1690 return -EINVAL;
1691
1692 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1693
1694 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1695 rem_reg_rules) {
1696 num_rules++;
1697 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
1698 goto bad_reg;
1699 }
1700
1701 if (!reg_is_valid_request(alpha2))
1702 return -EINVAL;
1703
1704 size_of_regd = sizeof(struct ieee80211_regdomain) +
1705 (num_rules * sizeof(struct ieee80211_reg_rule));
1706
1707 rd = kzalloc(size_of_regd, GFP_KERNEL);
1708 if (!rd)
1709 return -ENOMEM;
1710
1711 rd->n_reg_rules = num_rules;
1712 rd->alpha2[0] = alpha2[0];
1713 rd->alpha2[1] = alpha2[1];
1714
1715 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
1716 rem_reg_rules) {
1717 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
1718 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
1719 reg_rule_policy);
1720 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
1721 if (r)
1722 goto bad_reg;
1723
1724 rule_idx++;
1725
1726 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
1727 goto bad_reg;
1728 }
1729
1730 BUG_ON(rule_idx != num_rules);
1731
1732 mutex_lock(&cfg80211_drv_mutex);
1733 r = set_regdom(rd);
1734 mutex_unlock(&cfg80211_drv_mutex);
1735 if (r)
1736 goto bad_reg;
1737
1738 return r;
1739
1740bad_reg:
1741 kfree(rd);
1742 return -EINVAL;
1743}
1744
55682965
JB		 1745static struct genl_ops nl80211_ops[] = {
1746 {
1747 .cmd = NL80211_CMD_GET_WIPHY,
1748 .doit = nl80211_get_wiphy,
1749 .dumpit = nl80211_dump_wiphy,
1750 .policy = nl80211_policy,
1751 /* can be retrieved by unprivileged users */
1752 },
1753 {
1754 .cmd = NL80211_CMD_SET_WIPHY,
1755 .doit = nl80211_set_wiphy,
1756 .policy = nl80211_policy,
1757 .flags = GENL_ADMIN_PERM,
1758 },
1759 {
1760 .cmd = NL80211_CMD_GET_INTERFACE,
1761 .doit = nl80211_get_interface,
1762 .dumpit = nl80211_dump_interface,
1763 .policy = nl80211_policy,
1764 /* can be retrieved by unprivileged users */
1765 },
1766 {
1767 .cmd = NL80211_CMD_SET_INTERFACE,
1768 .doit = nl80211_set_interface,
1769 .policy = nl80211_policy,
1770 .flags = GENL_ADMIN_PERM,
1771 },
1772 {
1773 .cmd = NL80211_CMD_NEW_INTERFACE,
1774 .doit = nl80211_new_interface,
1775 .policy = nl80211_policy,
1776 .flags = GENL_ADMIN_PERM,
1777 },
1778 {
1779 .cmd = NL80211_CMD_DEL_INTERFACE,
1780 .doit = nl80211_del_interface,
1781 .policy = nl80211_policy,
41ade00f
JB		 1782 .flags = GENL_ADMIN_PERM,
1783 },
1784 {
1785 .cmd = NL80211_CMD_GET_KEY,
1786 .doit = nl80211_get_key,
1787 .policy = nl80211_policy,
1788 .flags = GENL_ADMIN_PERM,
1789 },
1790 {
1791 .cmd = NL80211_CMD_SET_KEY,
1792 .doit = nl80211_set_key,
1793 .policy = nl80211_policy,
1794 .flags = GENL_ADMIN_PERM,
1795 },
1796 {
1797 .cmd = NL80211_CMD_NEW_KEY,
1798 .doit = nl80211_new_key,
1799 .policy = nl80211_policy,
1800 .flags = GENL_ADMIN_PERM,
1801 },
1802 {
1803 .cmd = NL80211_CMD_DEL_KEY,
1804 .doit = nl80211_del_key,
1805 .policy = nl80211_policy,
55682965
JB		 1806 .flags = GENL_ADMIN_PERM,
1807 },
ed1b6cc7
JB		 1808 {
1809 .cmd = NL80211_CMD_SET_BEACON,
1810 .policy = nl80211_policy,
1811 .flags = GENL_ADMIN_PERM,
1812 .doit = nl80211_addset_beacon,
1813 },
1814 {
1815 .cmd = NL80211_CMD_NEW_BEACON,
1816 .policy = nl80211_policy,
1817 .flags = GENL_ADMIN_PERM,
1818 .doit = nl80211_addset_beacon,
1819 },
1820 {
1821 .cmd = NL80211_CMD_DEL_BEACON,
1822 .policy = nl80211_policy,
1823 .flags = GENL_ADMIN_PERM,
1824 .doit = nl80211_del_beacon,
1825 },
5727ef1b
JB		 1826 {
1827 .cmd = NL80211_CMD_GET_STATION,
1828 .doit = nl80211_get_station,
2ec600d6 1829 .dumpit = nl80211_dump_station,
5727ef1b
JB		 1830 .policy = nl80211_policy,
1831 .flags = GENL_ADMIN_PERM,
1832 },
1833 {
1834 .cmd = NL80211_CMD_SET_STATION,
1835 .doit = nl80211_set_station,
1836 .policy = nl80211_policy,
1837 .flags = GENL_ADMIN_PERM,
1838 },
1839 {
1840 .cmd = NL80211_CMD_NEW_STATION,
1841 .doit = nl80211_new_station,
1842 .policy = nl80211_policy,
1843 .flags = GENL_ADMIN_PERM,
1844 },
1845 {
1846 .cmd = NL80211_CMD_DEL_STATION,
1847 .doit = nl80211_del_station,
1848 .policy = nl80211_policy,
2ec600d6
LCC		 1849 .flags = GENL_ADMIN_PERM,
1850 },
1851 {
1852 .cmd = NL80211_CMD_GET_MPATH,
1853 .doit = nl80211_get_mpath,
1854 .dumpit = nl80211_dump_mpath,
1855 .policy = nl80211_policy,
1856 .flags = GENL_ADMIN_PERM,
1857 },
1858 {
1859 .cmd = NL80211_CMD_SET_MPATH,
1860 .doit = nl80211_set_mpath,
1861 .policy = nl80211_policy,
1862 .flags = GENL_ADMIN_PERM,
1863 },
1864 {
1865 .cmd = NL80211_CMD_NEW_MPATH,
1866 .doit = nl80211_new_mpath,
1867 .policy = nl80211_policy,
1868 .flags = GENL_ADMIN_PERM,
1869 },
1870 {
1871 .cmd = NL80211_CMD_DEL_MPATH,
1872 .doit = nl80211_del_mpath,
1873 .policy = nl80211_policy,
9f1ba906
JM		 1874 .flags = GENL_ADMIN_PERM,
1875 },
1876 {
1877 .cmd = NL80211_CMD_SET_BSS,
1878 .doit = nl80211_set_bss,
1879 .policy = nl80211_policy,
b2e1b302
LR		 1880 .flags = GENL_ADMIN_PERM,
1881 },
1882 {
1883 .cmd = NL80211_CMD_SET_REG,
1884 .doit = nl80211_set_reg,
1885 .policy = nl80211_policy,
1886 .flags = GENL_ADMIN_PERM,
1887 },
1888 {
1889 .cmd = NL80211_CMD_REQ_SET_REG,
1890 .doit = nl80211_req_set_reg,
1891 .policy = nl80211_policy,
5727ef1b
JB		 1892 .flags = GENL_ADMIN_PERM,
1893 },
55682965
JB		 1894};
1895
1896/* multicast groups */
1897static struct genl_multicast_group nl80211_config_mcgrp = {
1898 .name = "config",
1899};
1900
1901/* notification functions */
1902
1903void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
1904{
1905 struct sk_buff *msg;
1906
1907 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1908 if (!msg)
1909 return;
1910
1911 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
1912 nlmsg_free(msg);
1913 return;
1914 }
1915
1916 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
1917}
1918
1919/* initialisation/exit functions */
1920
1921int nl80211_init(void)
1922{
1923 int err, i;
1924
1925 err = genl_register_family(&nl80211_fam);
1926 if (err)
1927 return err;
1928
1929 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
1930 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
1931 if (err)
1932 goto err_out;
1933 }
1934
1935 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
1936 if (err)
1937 goto err_out;
1938
1939 return 0;
1940 err_out:
1941 genl_unregister_family(&nl80211_fam);
1942 return err;
1943}
1944
1945void nl80211_exit(void)
1946{
1947 genl_unregister_family(&nl80211_fam);
1948}
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