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nl80211/mac80211: define and allow configuring mesh element TTL
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 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>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
36aedc90 124
93da9cc1 125 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
126
36aedc90
JM		 127 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
128 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 129
130 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
131 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
132 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 133 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
134 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 135
136 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
137 .len = IEEE80211_MAX_SSID_LEN },
138 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
139 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 140 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 141 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 142 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 143 [NL80211_ATTR_STA_FLAGS2] = {
144 .len = sizeof(struct nl80211_sta_flag_update),
145 },
3f77316c 146 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 147 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
148 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 149 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
150 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
151 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 152 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 153 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 154 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
155 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 156 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
157 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 158 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 159 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
160 .len = IEEE80211_MAX_DATA_LEN },
161 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 162 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 163 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 164 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 165 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 166 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
167 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 168 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 169 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
170 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 171 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 172 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
55682965
JB		 173};
174
e31b8213 175/* policy for the key attributes */
b54452b0 176static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 177 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 178 [NL80211_KEY_IDX] = { .type = NLA_U8 },
179 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
180 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
181 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
182 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 183 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
b9454e83
JB		 184};
185
a043897a
HS		 186/* ifidx get helper */
187static int nl80211_get_ifidx(struct netlink_callback *cb)
188{
189 int res;
190
191 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
192 nl80211_fam.attrbuf, nl80211_fam.maxattr,
193 nl80211_policy);
194 if (res)
195 return res;
196
197 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
198 return -EINVAL;
199
200 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
201 if (!res)
202 return -EINVAL;
203 return res;
204}
205
67748893
JB		 206static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
207 struct netlink_callback *cb,
208 struct cfg80211_registered_device **rdev,
209 struct net_device **dev)
210{
211 int ifidx = cb->args[0];
212 int err;
213
214 if (!ifidx)
215 ifidx = nl80211_get_ifidx(cb);
216 if (ifidx < 0)
217 return ifidx;
218
219 cb->args[0] = ifidx;
220
221 rtnl_lock();
222
223 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
224 if (!*dev) {
225 err = -ENODEV;
226 goto out_rtnl;
227 }
228
229 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 230 if (IS_ERR(*rdev)) {
231 err = PTR_ERR(*rdev);
67748893
JB		 232 goto out_rtnl;
233 }
234
235 return 0;
236 out_rtnl:
237 rtnl_unlock();
238 return err;
239}
240
241static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
242{
243 cfg80211_unlock_rdev(rdev);
244 rtnl_unlock();
245}
246
f4a11bb0
JB		 247/* IE validation */
248static bool is_valid_ie_attr(const struct nlattr *attr)
249{
250 const u8 *pos;
251 int len;
252
253 if (!attr)
254 return true;
255
256 pos = nla_data(attr);
257 len = nla_len(attr);
258
259 while (len) {
260 u8 elemlen;
261
262 if (len < 2)
263 return false;
264 len -= 2;
265
266 elemlen = pos[1];
267 if (elemlen > len)
268 return false;
269
270 len -= elemlen;
271 pos += 2 + elemlen;
272 }
273
274 return true;
275}
276
55682965
JB		 277/* message building helper */
278static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
279 int flags, u8 cmd)
280{
281 /* since there is no private header just add the generic one */
282 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
283}
284
5dab3b8a
LR		 285static int nl80211_msg_put_channel(struct sk_buff *msg,
286 struct ieee80211_channel *chan)
287{
288 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
289 chan->center_freq);
290
291 if (chan->flags & IEEE80211_CHAN_DISABLED)
292 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
293 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
294 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
295 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
296 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
297 if (chan->flags & IEEE80211_CHAN_RADAR)
298 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
299
300 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
301 DBM_TO_MBM(chan->max_power));
302
303 return 0;
304
305 nla_put_failure:
306 return -ENOBUFS;
307}
308
55682965
JB		 309/* netlink command implementations */
310
b9454e83
JB		 311struct key_parse {
312 struct key_params p;
313 int idx;
e31b8213 314 int type;
b9454e83
JB		 315 bool def, defmgmt;
316};
317
318static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
319{
320 struct nlattr *tb[NL80211_KEY_MAX + 1];
321 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
322 nl80211_key_policy);
323 if (err)
324 return err;
325
326 k->def = !!tb[NL80211_KEY_DEFAULT];
327 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
328
329 if (tb[NL80211_KEY_IDX])
330 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
331
332 if (tb[NL80211_KEY_DATA]) {
333 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
334 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
335 }
336
337 if (tb[NL80211_KEY_SEQ]) {
338 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
339 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
340 }
341
342 if (tb[NL80211_KEY_CIPHER])
343 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
344
e31b8213
JB		 345 if (tb[NL80211_KEY_TYPE]) {
346 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
347 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
348 return -EINVAL;
349 }
350
b9454e83
JB		 351 return 0;
352}
353
354static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
355{
356 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
357 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
358 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
359 }
360
361 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
362 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
363 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
364 }
365
366 if (info->attrs[NL80211_ATTR_KEY_IDX])
367 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
368
369 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
370 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
371
372 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
373 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
374
e31b8213
JB		 375 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
376 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
377 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
378 return -EINVAL;
379 }
380
b9454e83
JB		 381 return 0;
382}
383
384static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
385{
386 int err;
387
388 memset(k, 0, sizeof(*k));
389 k->idx = -1;
e31b8213 390 k->type = -1;
b9454e83
JB		 391
392 if (info->attrs[NL80211_ATTR_KEY])
393 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
394 else
395 err = nl80211_parse_key_old(info, k);
396
397 if (err)
398 return err;
399
400 if (k->def && k->defmgmt)
401 return -EINVAL;
402
403 if (k->idx != -1) {
404 if (k->defmgmt) {
405 if (k->idx < 4 || k->idx > 5)
406 return -EINVAL;
407 } else if (k->def) {
408 if (k->idx < 0 || k->idx > 3)
409 return -EINVAL;
410 } else {
411 if (k->idx < 0 || k->idx > 5)
412 return -EINVAL;
413 }
414 }
415
416 return 0;
417}
418
fffd0934
JB		 419static struct cfg80211_cached_keys *
420nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
421 struct nlattr *keys)
422{
423 struct key_parse parse;
424 struct nlattr *key;
425 struct cfg80211_cached_keys *result;
426 int rem, err, def = 0;
427
428 result = kzalloc(sizeof(*result), GFP_KERNEL);
429 if (!result)
430 return ERR_PTR(-ENOMEM);
431
432 result->def = -1;
433 result->defmgmt = -1;
434
435 nla_for_each_nested(key, keys, rem) {
436 memset(&parse, 0, sizeof(parse));
437 parse.idx = -1;
438
439 err = nl80211_parse_key_new(key, &parse);
440 if (err)
441 goto error;
442 err = -EINVAL;
443 if (!parse.p.key)
444 goto error;
445 if (parse.idx < 0 || parse.idx > 4)
446 goto error;
447 if (parse.def) {
448 if (def)
449 goto error;
450 def = 1;
451 result->def = parse.idx;
452 } else if (parse.defmgmt)
453 goto error;
454 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 455 parse.idx, false, NULL);
fffd0934
JB		 456 if (err)
457 goto error;
458 result->params[parse.idx].cipher = parse.p.cipher;
459 result->params[parse.idx].key_len = parse.p.key_len;
460 result->params[parse.idx].key = result->data[parse.idx];
461 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
462 }
463
464 return result;
465 error:
466 kfree(result);
467 return ERR_PTR(err);
468}
469
470static int nl80211_key_allowed(struct wireless_dev *wdev)
471{
472 ASSERT_WDEV_LOCK(wdev);
473
fffd0934
JB		 474 switch (wdev->iftype) {
475 case NL80211_IFTYPE_AP:
476 case NL80211_IFTYPE_AP_VLAN:
074ac8df 477 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 478 break;
479 case NL80211_IFTYPE_ADHOC:
480 if (!wdev->current_bss)
481 return -ENOLINK;
482 break;
483 case NL80211_IFTYPE_STATION:
074ac8df 484 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 485 if (wdev->sme_state != CFG80211_SME_CONNECTED)
486 return -ENOLINK;
487 break;
488 default:
489 return -EINVAL;
490 }
491
492 return 0;
493}
494
55682965
JB		 495static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
496 struct cfg80211_registered_device *dev)
497{
498 void *hdr;
ee688b00
JB		 499 struct nlattr *nl_bands, *nl_band;
500 struct nlattr *nl_freqs, *nl_freq;
501 struct nlattr *nl_rates, *nl_rate;
f59ac048 502 struct nlattr *nl_modes;
8fdc621d 503 struct nlattr *nl_cmds;
ee688b00
JB		 504 enum ieee80211_band band;
505 struct ieee80211_channel *chan;
506 struct ieee80211_rate *rate;
507 int i;
f59ac048 508 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 509 const struct ieee80211_txrx_stypes *mgmt_stypes =
510 dev->wiphy.mgmt_stypes;
55682965
JB		 511
512 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
513 if (!hdr)
514 return -1;
515
b5850a7a 516 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 517 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 518
f5ea9120
JB		 519 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
520 cfg80211_rdev_list_generation);
521
b9a5f8ca
JM		 522 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
523 dev->wiphy.retry_short);
524 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
525 dev->wiphy.retry_long);
526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
527 dev->wiphy.frag_threshold);
528 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
529 dev->wiphy.rts_threshold);
81077e82
LT		 530 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
531 dev->wiphy.coverage_class);
2a519311
JB		 532 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
533 dev->wiphy.max_scan_ssids);
18a83659
JB		 534 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
535 dev->wiphy.max_scan_ie_len);
ee688b00 536
e31b8213
JB		 537 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
538 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
539
25e47c18
JB		 540 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
541 sizeof(u32) * dev->wiphy.n_cipher_suites,
542 dev->wiphy.cipher_suites);
543
67fbb16b
SO		 544 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
545 dev->wiphy.max_num_pmkids);
546
c0692b8f
JB		 547 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
548 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
549
afe0cbf8
BR		 550 if (dev->ops->get_antenna) {
551 u32 tx_ant = 0, rx_ant = 0;
552 int res;
553 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
554 if (!res) {
555 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
557 }
558 }
559
f59ac048
LR		 560 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
561 if (!nl_modes)
562 goto nla_put_failure;
563
564 i = 0;
565 while (ifmodes) {
566 if (ifmodes & 1)
567 NLA_PUT_FLAG(msg, i);
568 ifmodes >>= 1;
569 i++;
570 }
571
572 nla_nest_end(msg, nl_modes);
573
ee688b00
JB		 574 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
575 if (!nl_bands)
576 goto nla_put_failure;
577
578 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
579 if (!dev->wiphy.bands[band])
580 continue;
581
582 nl_band = nla_nest_start(msg, band);
583 if (!nl_band)
584 goto nla_put_failure;
585
d51626df
JB		 586 /* add HT info */
587 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
588 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
589 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
590 &dev->wiphy.bands[band]->ht_cap.mcs);
591 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
592 dev->wiphy.bands[band]->ht_cap.cap);
593 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
594 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
595 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
596 dev->wiphy.bands[band]->ht_cap.ampdu_density);
597 }
598
ee688b00
JB		 599 /* add frequencies */
600 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
601 if (!nl_freqs)
602 goto nla_put_failure;
603
604 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
605 nl_freq = nla_nest_start(msg, i);
606 if (!nl_freq)
607 goto nla_put_failure;
608
609 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 610
611 if (nl80211_msg_put_channel(msg, chan))
612 goto nla_put_failure;
e2f367f2 613
ee688b00
JB		 614 nla_nest_end(msg, nl_freq);
615 }
616
617 nla_nest_end(msg, nl_freqs);
618
619 /* add bitrates */
620 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
621 if (!nl_rates)
622 goto nla_put_failure;
623
624 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
625 nl_rate = nla_nest_start(msg, i);
626 if (!nl_rate)
627 goto nla_put_failure;
628
629 rate = &dev->wiphy.bands[band]->bitrates[i];
630 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
631 rate->bitrate);
632 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
633 NLA_PUT_FLAG(msg,
634 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
635
636 nla_nest_end(msg, nl_rate);
637 }
638
639 nla_nest_end(msg, nl_rates);
640
641 nla_nest_end(msg, nl_band);
642 }
643 nla_nest_end(msg, nl_bands);
644
8fdc621d
JB		 645 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
646 if (!nl_cmds)
647 goto nla_put_failure;
648
649 i = 0;
650#define CMD(op, n) \
651 do { \
652 if (dev->ops->op) { \
653 i++; \
654 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
655 } \
656 } while (0)
657
658 CMD(add_virtual_intf, NEW_INTERFACE);
659 CMD(change_virtual_intf, SET_INTERFACE);
660 CMD(add_key, NEW_KEY);
661 CMD(add_beacon, NEW_BEACON);
662 CMD(add_station, NEW_STATION);
663 CMD(add_mpath, NEW_MPATH);
664 CMD(set_mesh_params, SET_MESH_PARAMS);
665 CMD(change_bss, SET_BSS);
636a5d36
JM		 666 CMD(auth, AUTHENTICATE);
667 CMD(assoc, ASSOCIATE);
668 CMD(deauth, DEAUTHENTICATE);
669 CMD(disassoc, DISASSOCIATE);
04a773ad 670 CMD(join_ibss, JOIN_IBSS);
67fbb16b
SO		 671 CMD(set_pmksa, SET_PMKSA);
672 CMD(del_pmksa, DEL_PMKSA);
673 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 674 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 675 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 676 CMD(mgmt_tx, FRAME);
f7ca38df 677 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 678 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 679 i++;
680 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
681 }
f444de05 682 CMD(set_channel, SET_CHANNEL);
e8347eba 683 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 684
685#undef CMD
b23aa676 686
6829c878 687 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 688 i++;
689 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
690 }
691
6829c878 692 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 693 i++;
694 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
695 }
696
8fdc621d
JB		 697 nla_nest_end(msg, nl_cmds);
698
f7ca38df
JB		 699 /* for now at least assume all drivers have it */
700 if (dev->ops->mgmt_tx)
701 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
702
2e161f78
JB		 703 if (mgmt_stypes) {
704 u16 stypes;
705 struct nlattr *nl_ftypes, *nl_ifs;
706 enum nl80211_iftype ift;
707
708 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
709 if (!nl_ifs)
710 goto nla_put_failure;
711
712 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
713 nl_ftypes = nla_nest_start(msg, ift);
714 if (!nl_ftypes)
715 goto nla_put_failure;
716 i = 0;
717 stypes = mgmt_stypes[ift].tx;
718 while (stypes) {
719 if (stypes & 1)
720 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
721 (i << 4) | IEEE80211_FTYPE_MGMT);
722 stypes >>= 1;
723 i++;
724 }
725 nla_nest_end(msg, nl_ftypes);
726 }
727
74b70a4e
JB		 728 nla_nest_end(msg, nl_ifs);
729
2e161f78
JB		 730 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
731 if (!nl_ifs)
732 goto nla_put_failure;
733
734 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
735 nl_ftypes = nla_nest_start(msg, ift);
736 if (!nl_ftypes)
737 goto nla_put_failure;
738 i = 0;
739 stypes = mgmt_stypes[ift].rx;
740 while (stypes) {
741 if (stypes & 1)
742 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
743 (i << 4) | IEEE80211_FTYPE_MGMT);
744 stypes >>= 1;
745 i++;
746 }
747 nla_nest_end(msg, nl_ftypes);
748 }
749 nla_nest_end(msg, nl_ifs);
750 }
751
55682965
JB		 752 return genlmsg_end(msg, hdr);
753
754 nla_put_failure:
bc3ed28c
TG		 755 genlmsg_cancel(msg, hdr);
756 return -EMSGSIZE;
55682965
JB		 757}
758
759static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
760{
761 int idx = 0;
762 int start = cb->args[0];
763 struct cfg80211_registered_device *dev;
764
a1794390 765 mutex_lock(&cfg80211_mutex);
79c97e97 766 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 767 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
768 continue;
b4637271 769 if (++idx <= start)
55682965
JB		 770 continue;
771 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
772 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 773 dev) < 0) {
774 idx--;
55682965 775 break;
b4637271 776 }
55682965 777 }
a1794390 778 mutex_unlock(&cfg80211_mutex);
55682965
JB		 779
780 cb->args[0] = idx;
781
782 return skb->len;
783}
784
785static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
786{
787 struct sk_buff *msg;
4c476991 788 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 789
fd2120ca 790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 791 if (!msg)
4c476991 792 return -ENOMEM;
55682965 793
4c476991
JB		 794 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
795 nlmsg_free(msg);
796 return -ENOBUFS;
797 }
55682965 798
134e6375 799 return genlmsg_reply(msg, info);
55682965
JB		 800}
801
31888487
JM		 802static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
803 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
804 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
805 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
806 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
807 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
808};
809
810static int parse_txq_params(struct nlattr *tb[],
811 struct ieee80211_txq_params *txq_params)
812{
813 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
814 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
815 !tb[NL80211_TXQ_ATTR_AIFS])
816 return -EINVAL;
817
818 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
819 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
820 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
821 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
822 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
823
824 return 0;
825}
826
f444de05
JB		 827static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
828{
829 /*
830 * You can only set the channel explicitly for AP, mesh
831 * and WDS type interfaces; all others have their channel
832 * managed via their respective "establish a connection"
833 * command (connect, join, ...)
834 *
835 * Monitors are special as they are normally slaved to
836 * whatever else is going on, so they behave as though
837 * you tried setting the wiphy channel itself.
838 */
839 return !wdev ||
840 wdev->iftype == NL80211_IFTYPE_AP ||
841 wdev->iftype == NL80211_IFTYPE_WDS ||
842 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 843 wdev->iftype == NL80211_IFTYPE_MONITOR ||
844 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 845}
846
847static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
848 struct wireless_dev *wdev,
849 struct genl_info *info)
850{
851 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
852 u32 freq;
853 int result;
854
855 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
856 return -EINVAL;
857
858 if (!nl80211_can_set_dev_channel(wdev))
859 return -EOPNOTSUPP;
860
861 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
862 channel_type = nla_get_u32(info->attrs[
863 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
864 if (channel_type != NL80211_CHAN_NO_HT &&
865 channel_type != NL80211_CHAN_HT20 &&
866 channel_type != NL80211_CHAN_HT40PLUS &&
867 channel_type != NL80211_CHAN_HT40MINUS)
868 return -EINVAL;
869 }
870
871 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
872
873 mutex_lock(&rdev->devlist_mtx);
874 if (wdev) {
875 wdev_lock(wdev);
876 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
877 wdev_unlock(wdev);
878 } else {
879 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
880 }
881 mutex_unlock(&rdev->devlist_mtx);
882
883 return result;
884}
885
886static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
887{
4c476991
JB		 888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
889 struct net_device *netdev = info->user_ptr[1];
f444de05 890
4c476991 891 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 892}
893
e8347eba
BJ		 894static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
895{
43b19952
JB		 896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
897 struct net_device *dev = info->user_ptr[1];
898 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 899 const u8 *bssid;
e8347eba
BJ		 900
901 if (!info->attrs[NL80211_ATTR_MAC])
902 return -EINVAL;
903
43b19952
JB		 904 if (netif_running(dev))
905 return -EBUSY;
e8347eba 906
43b19952
JB		 907 if (!rdev->ops->set_wds_peer)
908 return -EOPNOTSUPP;
e8347eba 909
43b19952
JB		 910 if (wdev->iftype != NL80211_IFTYPE_WDS)
911 return -EOPNOTSUPP;
e8347eba
BJ		 912
913 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 914 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 915}
916
917
55682965
JB		 918static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
919{
920 struct cfg80211_registered_device *rdev;
f444de05
JB		 921 struct net_device *netdev = NULL;
922 struct wireless_dev *wdev;
a1e567c8 923 int result = 0, rem_txq_params = 0;
31888487 924 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 925 u32 changed;
926 u8 retry_short = 0, retry_long = 0;
927 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 928 u8 coverage_class = 0;
55682965 929
f444de05
JB		 930 /*
931 * Try to find the wiphy and netdev. Normally this
932 * function shouldn't need the netdev, but this is
933 * done for backward compatibility -- previously
934 * setting the channel was done per wiphy, but now
935 * it is per netdev. Previous userland like hostapd
936 * also passed a netdev to set_wiphy, so that it is
937 * possible to let that go to the right netdev!
938 */
4bbf4d56
JB		 939 mutex_lock(&cfg80211_mutex);
940
f444de05
JB		 941 if (info->attrs[NL80211_ATTR_IFINDEX]) {
942 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
943
944 netdev = dev_get_by_index(genl_info_net(info), ifindex);
945 if (netdev && netdev->ieee80211_ptr) {
946 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
947 mutex_lock(&rdev->mtx);
948 } else
949 netdev = NULL;
4bbf4d56
JB		 950 }
951
f444de05
JB		 952 if (!netdev) {
953 rdev = __cfg80211_rdev_from_info(info);
954 if (IS_ERR(rdev)) {
955 mutex_unlock(&cfg80211_mutex);
4c476991 956 return PTR_ERR(rdev);
f444de05
JB		 957 }
958 wdev = NULL;
959 netdev = NULL;
960 result = 0;
961
962 mutex_lock(&rdev->mtx);
963 } else if (netif_running(netdev) &&
964 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
965 wdev = netdev->ieee80211_ptr;
966 else
967 wdev = NULL;
968
969 /*
970 * end workaround code, by now the rdev is available
971 * and locked, and wdev may or may not be NULL.
972 */
4bbf4d56
JB		 973
974 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 975 result = cfg80211_dev_rename(
976 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 977
978 mutex_unlock(&cfg80211_mutex);
979
980 if (result)
981 goto bad_res;
31888487
JM		 982
983 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
984 struct ieee80211_txq_params txq_params;
985 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
986
987 if (!rdev->ops->set_txq_params) {
988 result = -EOPNOTSUPP;
989 goto bad_res;
990 }
991
992 nla_for_each_nested(nl_txq_params,
993 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
994 rem_txq_params) {
995 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
996 nla_data(nl_txq_params),
997 nla_len(nl_txq_params),
998 txq_params_policy);
999 result = parse_txq_params(tb, &txq_params);
1000 if (result)
1001 goto bad_res;
1002
1003 result = rdev->ops->set_txq_params(&rdev->wiphy,
1004 &txq_params);
1005 if (result)
1006 goto bad_res;
1007 }
1008 }
55682965 1009
72bdcf34 1010 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1011 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1012 if (result)
1013 goto bad_res;
1014 }
1015
98d2ff8b
JO		 1016 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1017 enum nl80211_tx_power_setting type;
1018 int idx, mbm = 0;
1019
1020 if (!rdev->ops->set_tx_power) {
60ea385f 1021 result = -EOPNOTSUPP;
98d2ff8b
JO		 1022 goto bad_res;
1023 }
1024
1025 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1026 type = nla_get_u32(info->attrs[idx]);
1027
1028 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1029 (type != NL80211_TX_POWER_AUTOMATIC)) {
1030 result = -EINVAL;
1031 goto bad_res;
1032 }
1033
1034 if (type != NL80211_TX_POWER_AUTOMATIC) {
1035 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1036 mbm = nla_get_u32(info->attrs[idx]);
1037 }
1038
1039 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1040 if (result)
1041 goto bad_res;
1042 }
1043
afe0cbf8
BR		 1044 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1045 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1046 u32 tx_ant, rx_ant;
1047 if (!rdev->ops->set_antenna) {
1048 result = -EOPNOTSUPP;
1049 goto bad_res;
1050 }
1051
1052 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1053 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1054
1055 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1056 if (result)
1057 goto bad_res;
1058 }
1059
b9a5f8ca
JM		 1060 changed = 0;
1061
1062 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1063 retry_short = nla_get_u8(
1064 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1065 if (retry_short == 0) {
1066 result = -EINVAL;
1067 goto bad_res;
1068 }
1069 changed |= WIPHY_PARAM_RETRY_SHORT;
1070 }
1071
1072 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1073 retry_long = nla_get_u8(
1074 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1075 if (retry_long == 0) {
1076 result = -EINVAL;
1077 goto bad_res;
1078 }
1079 changed |= WIPHY_PARAM_RETRY_LONG;
1080 }
1081
1082 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1083 frag_threshold = nla_get_u32(
1084 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1085 if (frag_threshold < 256) {
1086 result = -EINVAL;
1087 goto bad_res;
1088 }
1089 if (frag_threshold != (u32) -1) {
1090 /*
1091 * Fragments (apart from the last one) are required to
1092 * have even length. Make the fragmentation code
1093 * simpler by stripping LSB should someone try to use
1094 * odd threshold value.
1095 */
1096 frag_threshold &= ~0x1;
1097 }
1098 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1099 }
1100
1101 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1102 rts_threshold = nla_get_u32(
1103 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1104 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1105 }
1106
81077e82
LT		 1107 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1108 coverage_class = nla_get_u8(
1109 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1110 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1111 }
1112
b9a5f8ca
JM		 1113 if (changed) {
1114 u8 old_retry_short, old_retry_long;
1115 u32 old_frag_threshold, old_rts_threshold;
81077e82 1116 u8 old_coverage_class;
b9a5f8ca
JM		 1117
1118 if (!rdev->ops->set_wiphy_params) {
1119 result = -EOPNOTSUPP;
1120 goto bad_res;
1121 }
1122
1123 old_retry_short = rdev->wiphy.retry_short;
1124 old_retry_long = rdev->wiphy.retry_long;
1125 old_frag_threshold = rdev->wiphy.frag_threshold;
1126 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1127 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1128
1129 if (changed & WIPHY_PARAM_RETRY_SHORT)
1130 rdev->wiphy.retry_short = retry_short;
1131 if (changed & WIPHY_PARAM_RETRY_LONG)
1132 rdev->wiphy.retry_long = retry_long;
1133 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1134 rdev->wiphy.frag_threshold = frag_threshold;
1135 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1136 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1137 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1138 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1139
1140 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1141 if (result) {
1142 rdev->wiphy.retry_short = old_retry_short;
1143 rdev->wiphy.retry_long = old_retry_long;
1144 rdev->wiphy.frag_threshold = old_frag_threshold;
1145 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1146 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1147 }
1148 }
72bdcf34 1149
306d6112 1150 bad_res:
4bbf4d56 1151 mutex_unlock(&rdev->mtx);
f444de05
JB		 1152 if (netdev)
1153 dev_put(netdev);
55682965
JB		 1154 return result;
1155}
1156
1157
1158static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1159 struct cfg80211_registered_device *rdev,
55682965
JB		 1160 struct net_device *dev)
1161{
1162 void *hdr;
1163
1164 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1165 if (!hdr)
1166 return -1;
1167
1168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1169 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1170 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1171 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1172
1173 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1174 rdev->devlist_generation ^
1175 (cfg80211_rdev_list_generation << 2));
1176
55682965
JB		 1177 return genlmsg_end(msg, hdr);
1178
1179 nla_put_failure:
bc3ed28c
TG		 1180 genlmsg_cancel(msg, hdr);
1181 return -EMSGSIZE;
55682965
JB		 1182}
1183
1184static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1185{
1186 int wp_idx = 0;
1187 int if_idx = 0;
1188 int wp_start = cb->args[0];
1189 int if_start = cb->args[1];
f5ea9120 1190 struct cfg80211_registered_device *rdev;
55682965
JB		 1191 struct wireless_dev *wdev;
1192
a1794390 1193 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1194 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1195 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1196 continue;
bba95fef
JB		 1197 if (wp_idx < wp_start) {
1198 wp_idx++;
55682965 1199 continue;
bba95fef 1200 }
55682965
JB		 1201 if_idx = 0;
1202
f5ea9120
JB		 1203 mutex_lock(&rdev->devlist_mtx);
1204 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1205 if (if_idx < if_start) {
1206 if_idx++;
55682965 1207 continue;
bba95fef 1208 }
55682965
JB		 1209 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1210 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1211 rdev, wdev->netdev) < 0) {
1212 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1213 goto out;
1214 }
1215 if_idx++;
55682965 1216 }
f5ea9120 1217 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1218
1219 wp_idx++;
55682965 1220 }
bba95fef 1221 out:
a1794390 1222 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1223
1224 cb->args[0] = wp_idx;
1225 cb->args[1] = if_idx;
1226
1227 return skb->len;
1228}
1229
1230static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1231{
1232 struct sk_buff *msg;
4c476991
JB		 1233 struct cfg80211_registered_device *dev = info->user_ptr[0];
1234 struct net_device *netdev = info->user_ptr[1];
55682965 1235
fd2120ca 1236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1237 if (!msg)
4c476991 1238 return -ENOMEM;
55682965 1239
d726405a 1240 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1241 dev, netdev) < 0) {
1242 nlmsg_free(msg);
1243 return -ENOBUFS;
1244 }
55682965 1245
134e6375 1246 return genlmsg_reply(msg, info);
55682965
JB		 1247}
1248
66f7ac50
MW		 1249static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1250 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1251 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1252 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1253 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1254 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1255};
1256
1257static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1258{
1259 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1260 int flag;
1261
1262 *mntrflags = 0;
1263
1264 if (!nla)
1265 return -EINVAL;
1266
1267 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1268 nla, mntr_flags_policy))
1269 return -EINVAL;
1270
1271 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1272 if (flags[flag])
1273 *mntrflags |= (1<<flag);
1274
1275 return 0;
1276}
1277
9bc383de 1278static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1279 struct net_device *netdev, u8 use_4addr,
1280 enum nl80211_iftype iftype)
9bc383de 1281{
ad4bb6f8 1282 if (!use_4addr) {
f350a0a8 1283 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1284 return -EBUSY;
9bc383de 1285 return 0;
ad4bb6f8 1286 }
9bc383de
JB		 1287
1288 switch (iftype) {
1289 case NL80211_IFTYPE_AP_VLAN:
1290 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1291 return 0;
1292 break;
1293 case NL80211_IFTYPE_STATION:
1294 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1295 return 0;
1296 break;
1297 default:
1298 break;
1299 }
1300
1301 return -EOPNOTSUPP;
1302}
1303
55682965
JB		 1304static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1305{
4c476991 1306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1307 struct vif_params params;
e36d56b6 1308 int err;
04a773ad 1309 enum nl80211_iftype otype, ntype;
4c476991 1310 struct net_device *dev = info->user_ptr[1];
92ffe055 1311 u32 _flags, *flags = NULL;
ac7f9cfa 1312 bool change = false;
55682965 1313
2ec600d6
LCC		 1314 memset(&params, 0, sizeof(params));
1315
04a773ad 1316 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1317
723b038d 1318 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1319 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1320 if (otype != ntype)
ac7f9cfa 1321 change = true;
4c476991
JB		 1322 if (ntype > NL80211_IFTYPE_MAX)
1323 return -EINVAL;
723b038d
JB		 1324 }
1325
92ffe055 1326 if (info->attrs[NL80211_ATTR_MESH_ID]) {
4c476991
JB		 1327 if (ntype != NL80211_IFTYPE_MESH_POINT)
1328 return -EINVAL;
2ec600d6
LCC		 1329 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1330 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 1331 change = true;
2ec600d6
LCC		 1332 }
1333
8b787643
FF		 1334 if (info->attrs[NL80211_ATTR_4ADDR]) {
1335 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1336 change = true;
ad4bb6f8 1337 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1338 if (err)
4c476991 1339 return err;
8b787643
FF		 1340 } else {
1341 params.use_4addr = -1;
1342 }
1343
92ffe055 1344 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1345 if (ntype != NL80211_IFTYPE_MONITOR)
1346 return -EINVAL;
92ffe055
JB		 1347 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1348 &_flags);
ac7f9cfa 1349 if (err)
4c476991 1350 return err;
ac7f9cfa
JB		 1351
1352 flags = &_flags;
1353 change = true;
92ffe055 1354 }
3b85875a 1355
ac7f9cfa 1356 if (change)
3d54d255 1357 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1358 else
1359 err = 0;
60719ffd 1360
9bc383de
JB		 1361 if (!err && params.use_4addr != -1)
1362 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1363
55682965
JB		 1364 return err;
1365}
1366
1367static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1368{
4c476991 1369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1370 struct vif_params params;
55682965
JB		 1371 int err;
1372 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1373 u32 flags;
55682965 1374
2ec600d6
LCC		 1375 memset(&params, 0, sizeof(params));
1376
55682965
JB		 1377 if (!info->attrs[NL80211_ATTR_IFNAME])
1378 return -EINVAL;
1379
1380 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1381 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1382 if (type > NL80211_IFTYPE_MAX)
1383 return -EINVAL;
1384 }
1385
79c97e97 1386 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1387 !(rdev->wiphy.interface_modes & (1 << type)))
1388 return -EOPNOTSUPP;
55682965 1389
2ec600d6
LCC		 1390 if (type == NL80211_IFTYPE_MESH_POINT &&
1391 info->attrs[NL80211_ATTR_MESH_ID]) {
1392 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1393 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1394 }
1395
9bc383de 1396 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1397 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1398 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1399 if (err)
4c476991 1400 return err;
9bc383de 1401 }
8b787643 1402
66f7ac50
MW		 1403 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1404 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1405 &flags);
79c97e97 1406 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1407 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1408 type, err ? NULL : &flags, &params);
2ec600d6 1409
55682965
JB		 1410 return err;
1411}
1412
1413static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1414{
4c476991
JB		 1415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1416 struct net_device *dev = info->user_ptr[1];
55682965 1417
4c476991
JB		 1418 if (!rdev->ops->del_virtual_intf)
1419 return -EOPNOTSUPP;
55682965 1420
4c476991 1421 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1422}
1423
41ade00f
JB		 1424struct get_key_cookie {
1425 struct sk_buff *msg;
1426 int error;
b9454e83 1427 int idx;
41ade00f
JB		 1428};
1429
1430static void get_key_callback(void *c, struct key_params *params)
1431{
b9454e83 1432 struct nlattr *key;
41ade00f
JB		 1433 struct get_key_cookie *cookie = c;
1434
1435 if (params->key)
1436 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1437 params->key_len, params->key);
1438
1439 if (params->seq)
1440 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1441 params->seq_len, params->seq);
1442
1443 if (params->cipher)
1444 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1445 params->cipher);
1446
b9454e83
JB		 1447 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1448 if (!key)
1449 goto nla_put_failure;
1450
1451 if (params->key)
1452 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1453 params->key_len, params->key);
1454
1455 if (params->seq)
1456 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1457 params->seq_len, params->seq);
1458
1459 if (params->cipher)
1460 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1461 params->cipher);
1462
1463 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1464
1465 nla_nest_end(cookie->msg, key);
1466
41ade00f
JB		 1467 return;
1468 nla_put_failure:
1469 cookie->error = 1;
1470}
1471
1472static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1473{
4c476991 1474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1475 int err;
4c476991 1476 struct net_device *dev = info->user_ptr[1];
41ade00f 1477 u8 key_idx = 0;
e31b8213
JB		 1478 const u8 *mac_addr = NULL;
1479 bool pairwise;
41ade00f
JB		 1480 struct get_key_cookie cookie = {
1481 .error = 0,
1482 };
1483 void *hdr;
1484 struct sk_buff *msg;
1485
1486 if (info->attrs[NL80211_ATTR_KEY_IDX])
1487 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1488
3cfcf6ac 1489 if (key_idx > 5)
41ade00f
JB		 1490 return -EINVAL;
1491
1492 if (info->attrs[NL80211_ATTR_MAC])
1493 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1494
e31b8213
JB		 1495 pairwise = !!mac_addr;
1496 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1497 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1498 if (kt >= NUM_NL80211_KEYTYPES)
1499 return -EINVAL;
1500 if (kt != NL80211_KEYTYPE_GROUP &&
1501 kt != NL80211_KEYTYPE_PAIRWISE)
1502 return -EINVAL;
1503 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1504 }
1505
4c476991
JB		 1506 if (!rdev->ops->get_key)
1507 return -EOPNOTSUPP;
41ade00f 1508
fd2120ca 1509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1510 if (!msg)
1511 return -ENOMEM;
41ade00f
JB		 1512
1513 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1514 NL80211_CMD_NEW_KEY);
4c476991
JB		 1515 if (IS_ERR(hdr))
1516 return PTR_ERR(hdr);
41ade00f
JB		 1517
1518 cookie.msg = msg;
b9454e83 1519 cookie.idx = key_idx;
41ade00f
JB		 1520
1521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1522 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1523 if (mac_addr)
1524 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1525
e31b8213
JB		 1526 if (pairwise && mac_addr &&
1527 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1528 return -ENOENT;
1529
1530 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1531 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1532
1533 if (err)
6c95e2a2 1534 goto free_msg;
41ade00f
JB		 1535
1536 if (cookie.error)
1537 goto nla_put_failure;
1538
1539 genlmsg_end(msg, hdr);
4c476991 1540 return genlmsg_reply(msg, info);
41ade00f
JB		 1541
1542 nla_put_failure:
1543 err = -ENOBUFS;
6c95e2a2 1544 free_msg:
41ade00f 1545 nlmsg_free(msg);
41ade00f
JB		 1546 return err;
1547}
1548
1549static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1550{
4c476991 1551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1552 struct key_parse key;
41ade00f 1553 int err;
4c476991 1554 struct net_device *dev = info->user_ptr[1];
3cfcf6ac
JM		 1555 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1556 u8 key_index);
41ade00f 1557
b9454e83
JB		 1558 err = nl80211_parse_key(info, &key);
1559 if (err)
1560 return err;
41ade00f 1561
b9454e83 1562 if (key.idx < 0)
41ade00f
JB		 1563 return -EINVAL;
1564
b9454e83
JB		 1565 /* only support setting default key */
1566 if (!key.def && !key.defmgmt)
41ade00f
JB		 1567 return -EINVAL;
1568
b9454e83 1569 if (key.def)
79c97e97 1570 func = rdev->ops->set_default_key;
3cfcf6ac 1571 else
79c97e97 1572 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac 1573
4c476991
JB		 1574 if (!func)
1575 return -EOPNOTSUPP;
41ade00f 1576
fffd0934
JB		 1577 wdev_lock(dev->ieee80211_ptr);
1578 err = nl80211_key_allowed(dev->ieee80211_ptr);
1579 if (!err)
1580 err = func(&rdev->wiphy, dev, key.idx);
1581
3d23e349 1582#ifdef CONFIG_CFG80211_WEXT
08645126 1583 if (!err) {
79c97e97 1584 if (func == rdev->ops->set_default_key)
b9454e83 1585 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1586 else
b9454e83 1587 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1588 }
1589#endif
fffd0934 1590 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1591
41ade00f
JB		 1592 return err;
1593}
1594
1595static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1596{
4c476991 1597 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1598 int err;
4c476991 1599 struct net_device *dev = info->user_ptr[1];
b9454e83 1600 struct key_parse key;
e31b8213 1601 const u8 *mac_addr = NULL;
41ade00f 1602
b9454e83
JB		 1603 err = nl80211_parse_key(info, &key);
1604 if (err)
1605 return err;
41ade00f 1606
b9454e83 1607 if (!key.p.key)
41ade00f
JB		 1608 return -EINVAL;
1609
41ade00f
JB		 1610 if (info->attrs[NL80211_ATTR_MAC])
1611 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1612
e31b8213
JB		 1613 if (key.type == -1) {
1614 if (mac_addr)
1615 key.type = NL80211_KEYTYPE_PAIRWISE;
1616 else
1617 key.type = NL80211_KEYTYPE_GROUP;
1618 }
1619
1620 /* for now */
1621 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1622 key.type != NL80211_KEYTYPE_GROUP)
1623 return -EINVAL;
1624
4c476991
JB		 1625 if (!rdev->ops->add_key)
1626 return -EOPNOTSUPP;
25e47c18 1627
e31b8213
JB		 1628 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1629 key.type == NL80211_KEYTYPE_PAIRWISE,
1630 mac_addr))
4c476991 1631 return -EINVAL;
41ade00f 1632
fffd0934
JB		 1633 wdev_lock(dev->ieee80211_ptr);
1634 err = nl80211_key_allowed(dev->ieee80211_ptr);
1635 if (!err)
1636 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1637 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1638 mac_addr, &key.p);
1639 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1640
41ade00f
JB		 1641 return err;
1642}
1643
1644static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1645{
4c476991 1646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1647 int err;
4c476991 1648 struct net_device *dev = info->user_ptr[1];
41ade00f 1649 u8 *mac_addr = NULL;
b9454e83 1650 struct key_parse key;
41ade00f 1651
b9454e83
JB		 1652 err = nl80211_parse_key(info, &key);
1653 if (err)
1654 return err;
41ade00f
JB		 1655
1656 if (info->attrs[NL80211_ATTR_MAC])
1657 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1658
e31b8213
JB		 1659 if (key.type == -1) {
1660 if (mac_addr)
1661 key.type = NL80211_KEYTYPE_PAIRWISE;
1662 else
1663 key.type = NL80211_KEYTYPE_GROUP;
1664 }
1665
1666 /* for now */
1667 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1668 key.type != NL80211_KEYTYPE_GROUP)
1669 return -EINVAL;
1670
4c476991
JB		 1671 if (!rdev->ops->del_key)
1672 return -EOPNOTSUPP;
41ade00f 1673
fffd0934
JB		 1674 wdev_lock(dev->ieee80211_ptr);
1675 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1676
1677 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1678 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1679 err = -ENOENT;
1680
fffd0934 1681 if (!err)
e31b8213
JB		 1682 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1683 key.type == NL80211_KEYTYPE_PAIRWISE,
1684 mac_addr);
41ade00f 1685
3d23e349 1686#ifdef CONFIG_CFG80211_WEXT
08645126 1687 if (!err) {
b9454e83 1688 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1689 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1690 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1691 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1692 }
1693#endif
fffd0934 1694 wdev_unlock(dev->ieee80211_ptr);
08645126 1695
41ade00f
JB		 1696 return err;
1697}
1698
ed1b6cc7
JB		 1699static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1700{
1701 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1702 struct beacon_parameters *info);
4c476991
JB		 1703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1704 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1705 struct beacon_parameters params;
1706 int haveinfo = 0;
1707
f4a11bb0
JB		 1708 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1709 return -EINVAL;
1710
074ac8df 1711 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1712 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1713 return -EOPNOTSUPP;
eec60b03 1714
ed1b6cc7
JB		 1715 switch (info->genlhdr->cmd) {
1716 case NL80211_CMD_NEW_BEACON:
1717 /* these are required for NEW_BEACON */
1718 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1719 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1720 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1721 return -EINVAL;
ed1b6cc7 1722
79c97e97 1723 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1724 break;
1725 case NL80211_CMD_SET_BEACON:
79c97e97 1726 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1727 break;
1728 default:
1729 WARN_ON(1);
4c476991 1730 return -EOPNOTSUPP;
ed1b6cc7
JB		 1731 }
1732
4c476991
JB		 1733 if (!call)
1734 return -EOPNOTSUPP;
ed1b6cc7
JB		 1735
1736 memset(&params, 0, sizeof(params));
1737
1738 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1739 params.interval =
1740 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1741 haveinfo = 1;
1742 }
1743
1744 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1745 params.dtim_period =
1746 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1747 haveinfo = 1;
1748 }
1749
1750 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1751 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1752 params.head_len =
1753 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1754 haveinfo = 1;
1755 }
1756
1757 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1758 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1759 params.tail_len =
1760 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1761 haveinfo = 1;
1762 }
1763
4c476991
JB		 1764 if (!haveinfo)
1765 return -EINVAL;
3b85875a 1766
4c476991 1767 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1768}
1769
1770static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1771{
4c476991
JB		 1772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1773 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1774
4c476991
JB		 1775 if (!rdev->ops->del_beacon)
1776 return -EOPNOTSUPP;
ed1b6cc7 1777
074ac8df 1778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1780 return -EOPNOTSUPP;
3b85875a 1781
4c476991 1782 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1783}
1784
5727ef1b
JB		 1785static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1786 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1787 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1788 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1789 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1790};
1791
eccb8e8f
JB		 1792static int parse_station_flags(struct genl_info *info,
1793 struct station_parameters *params)
5727ef1b
JB		 1794{
1795 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1796 struct nlattr *nla;
5727ef1b
JB		 1797 int flag;
1798
eccb8e8f
JB		 1799 /*
1800 * Try parsing the new attribute first so userspace
1801 * can specify both for older kernels.
1802 */
1803 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1804 if (nla) {
1805 struct nl80211_sta_flag_update *sta_flags;
1806
1807 sta_flags = nla_data(nla);
1808 params->sta_flags_mask = sta_flags->mask;
1809 params->sta_flags_set = sta_flags->set;
1810 if ((params->sta_flags_mask |
1811 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1812 return -EINVAL;
1813 return 0;
1814 }
1815
1816 /* if present, parse the old attribute */
5727ef1b 1817
eccb8e8f 1818 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1819 if (!nla)
1820 return 0;
1821
1822 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1823 nla, sta_flags_policy))
1824 return -EINVAL;
1825
eccb8e8f
JB		 1826 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1827 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1828
1829 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1830 if (flags[flag])
eccb8e8f 1831 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1832
1833 return 0;
1834}
1835
fd5b74dc
JB		 1836static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1837 int flags, struct net_device *dev,
98b62183 1838 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1839{
1840 void *hdr;
420e7fab
HR		 1841 struct nlattr *sinfoattr, *txrate;
1842 u16 bitrate;
fd5b74dc
JB		 1843
1844 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1845 if (!hdr)
1846 return -1;
1847
1848 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1849 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1850
f5ea9120
JB		 1851 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1852
2ec600d6
LCC		 1853 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1854 if (!sinfoattr)
fd5b74dc 1855 goto nla_put_failure;
2ec600d6
LCC		 1856 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1857 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1858 sinfo->inactive_time);
1859 if (sinfo->filled & STATION_INFO_RX_BYTES)
1860 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1861 sinfo->rx_bytes);
1862 if (sinfo->filled & STATION_INFO_TX_BYTES)
1863 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1864 sinfo->tx_bytes);
1865 if (sinfo->filled & STATION_INFO_LLID)
1866 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1867 sinfo->llid);
1868 if (sinfo->filled & STATION_INFO_PLID)
1869 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1870 sinfo->plid);
1871 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1872 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1873 sinfo->plink_state);
420e7fab
HR		 1874 if (sinfo->filled & STATION_INFO_SIGNAL)
1875 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1876 sinfo->signal);
1877 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1878 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1879 if (!txrate)
1880 goto nla_put_failure;
1881
254416aa
JL		 1882 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1883 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1884 if (bitrate > 0)
1885 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1886
420e7fab
HR		 1887 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1888 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1889 sinfo->txrate.mcs);
1890 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1891 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1892 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1893 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1894
1895 nla_nest_end(msg, txrate);
1896 }
98c8a60a
JM		 1897 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1898 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1899 sinfo->rx_packets);
1900 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1901 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1902 sinfo->tx_packets);
b206b4ef
BR		 1903 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1904 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1905 sinfo->tx_retries);
1906 if (sinfo->filled & STATION_INFO_TX_FAILED)
1907 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1908 sinfo->tx_failed);
2ec600d6 1909 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1910
1911 return genlmsg_end(msg, hdr);
1912
1913 nla_put_failure:
bc3ed28c
TG		 1914 genlmsg_cancel(msg, hdr);
1915 return -EMSGSIZE;
fd5b74dc
JB		 1916}
1917
2ec600d6 1918static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1919 struct netlink_callback *cb)
2ec600d6 1920{
2ec600d6
LCC		 1921 struct station_info sinfo;
1922 struct cfg80211_registered_device *dev;
bba95fef 1923 struct net_device *netdev;
2ec600d6 1924 u8 mac_addr[ETH_ALEN];
bba95fef 1925 int sta_idx = cb->args[1];
2ec600d6 1926 int err;
2ec600d6 1927
67748893
JB		 1928 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1929 if (err)
1930 return err;
bba95fef
JB		 1931
1932 if (!dev->ops->dump_station) {
eec60b03 1933 err = -EOPNOTSUPP;
bba95fef
JB		 1934 goto out_err;
1935 }
1936
bba95fef
JB		 1937 while (1) {
1938 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1939 mac_addr, &sinfo);
1940 if (err == -ENOENT)
1941 break;
1942 if (err)
3b85875a 1943 goto out_err;
bba95fef
JB		 1944
1945 if (nl80211_send_station(skb,
1946 NETLINK_CB(cb->skb).pid,
1947 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1948 netdev, mac_addr,
1949 &sinfo) < 0)
1950 goto out;
1951
1952 sta_idx++;
1953 }
1954
1955
1956 out:
1957 cb->args[1] = sta_idx;
1958 err = skb->len;
bba95fef 1959 out_err:
67748893 1960 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 1961
1962 return err;
2ec600d6 1963}
fd5b74dc 1964
5727ef1b
JB		 1965static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1966{
4c476991
JB		 1967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1968 struct net_device *dev = info->user_ptr[1];
2ec600d6 1969 struct station_info sinfo;
fd5b74dc
JB		 1970 struct sk_buff *msg;
1971 u8 *mac_addr = NULL;
4c476991 1972 int err;
fd5b74dc 1973
2ec600d6 1974 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1975
1976 if (!info->attrs[NL80211_ATTR_MAC])
1977 return -EINVAL;
1978
1979 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1980
4c476991
JB		 1981 if (!rdev->ops->get_station)
1982 return -EOPNOTSUPP;
3b85875a 1983
4c476991 1984 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 1985 if (err)
4c476991 1986 return err;
2ec600d6 1987
fd2120ca 1988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 1989 if (!msg)
4c476991 1990 return -ENOMEM;
fd5b74dc
JB		 1991
1992 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1993 dev, mac_addr, &sinfo) < 0) {
1994 nlmsg_free(msg);
1995 return -ENOBUFS;
1996 }
3b85875a 1997
4c476991 1998 return genlmsg_reply(msg, info);
5727ef1b
JB		 1999}
2000
2001/*
c258d2de 2002 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2003 */
463d0183 2004static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2005 struct cfg80211_registered_device *rdev,
2006 struct net_device **vlan)
2007{
463d0183 2008 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2009 *vlan = NULL;
2010
2011 if (vlanattr) {
463d0183
JB		 2012 *vlan = dev_get_by_index(genl_info_net(info),
2013 nla_get_u32(vlanattr));
5727ef1b
JB		 2014 if (!*vlan)
2015 return -ENODEV;
2016 if (!(*vlan)->ieee80211_ptr)
2017 return -EINVAL;
2018 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2019 return -EINVAL;
c258d2de
FF		 2020 if (!netif_running(*vlan))
2021 return -ENETDOWN;
5727ef1b
JB		 2022 }
2023 return 0;
2024}
2025
2026static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2027{
4c476991 2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2029 int err;
4c476991 2030 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2031 struct station_parameters params;
2032 u8 *mac_addr = NULL;
2033
2034 memset(&params, 0, sizeof(params));
2035
2036 params.listen_interval = -1;
2037
2038 if (info->attrs[NL80211_ATTR_STA_AID])
2039 return -EINVAL;
2040
2041 if (!info->attrs[NL80211_ATTR_MAC])
2042 return -EINVAL;
2043
2044 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2045
2046 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2047 params.supported_rates =
2048 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2049 params.supported_rates_len =
2050 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2051 }
2052
2053 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2054 params.listen_interval =
2055 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2056
36aedc90
JM		 2057 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2058 params.ht_capa =
2059 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2060
eccb8e8f 2061 if (parse_station_flags(info, &params))
5727ef1b
JB		 2062 return -EINVAL;
2063
2ec600d6
LCC		 2064 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2065 params.plink_action =
2066 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2067
463d0183 2068 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2069 if (err)
034d655e 2070 goto out;
a97f4424
JB		 2071
2072 /* validate settings */
2073 err = 0;
2074
2075 switch (dev->ieee80211_ptr->iftype) {
2076 case NL80211_IFTYPE_AP:
2077 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2078 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2079 /* disallow mesh-specific things */
2080 if (params.plink_action)
2081 err = -EINVAL;
2082 break;
074ac8df 2083 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2084 case NL80211_IFTYPE_STATION:
2085 /* disallow everything but AUTHORIZED flag */
2086 if (params.plink_action)
2087 err = -EINVAL;
2088 if (params.vlan)
2089 err = -EINVAL;
2090 if (params.supported_rates)
2091 err = -EINVAL;
2092 if (params.ht_capa)
2093 err = -EINVAL;
2094 if (params.listen_interval >= 0)
2095 err = -EINVAL;
2096 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2097 err = -EINVAL;
2098 break;
2099 case NL80211_IFTYPE_MESH_POINT:
2100 /* disallow things mesh doesn't support */
2101 if (params.vlan)
2102 err = -EINVAL;
2103 if (params.ht_capa)
2104 err = -EINVAL;
2105 if (params.listen_interval >= 0)
2106 err = -EINVAL;
2107 if (params.supported_rates)
2108 err = -EINVAL;
2109 if (params.sta_flags_mask)
2110 err = -EINVAL;
2111 break;
2112 default:
2113 err = -EINVAL;
034d655e
JB		 2114 }
2115
5727ef1b
JB		 2116 if (err)
2117 goto out;
2118
79c97e97 2119 if (!rdev->ops->change_station) {
5727ef1b
JB		 2120 err = -EOPNOTSUPP;
2121 goto out;
2122 }
2123
79c97e97 2124 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2125
2126 out:
2127 if (params.vlan)
2128 dev_put(params.vlan);
3b85875a 2129
5727ef1b
JB		 2130 return err;
2131}
2132
2133static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2134{
4c476991 2135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2136 int err;
4c476991 2137 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2138 struct station_parameters params;
2139 u8 *mac_addr = NULL;
2140
2141 memset(&params, 0, sizeof(params));
2142
2143 if (!info->attrs[NL80211_ATTR_MAC])
2144 return -EINVAL;
2145
5727ef1b
JB		 2146 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2147 return -EINVAL;
2148
2149 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2150 return -EINVAL;
2151
0e956c13
TLSC		 2152 if (!info->attrs[NL80211_ATTR_STA_AID])
2153 return -EINVAL;
2154
5727ef1b
JB		 2155 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2156 params.supported_rates =
2157 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2158 params.supported_rates_len =
2159 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2160 params.listen_interval =
2161 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2162
0e956c13
TLSC		 2163 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2164 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2165 return -EINVAL;
51b50fbe 2166
36aedc90
JM		 2167 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2168 params.ht_capa =
2169 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2170
eccb8e8f 2171 if (parse_station_flags(info, &params))
5727ef1b
JB		 2172 return -EINVAL;
2173
0e956c13 2174 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2175 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2176 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2177 return -EINVAL;
0e956c13 2178
463d0183 2179 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2180 if (err)
e80cf853 2181 goto out;
a97f4424
JB		 2182
2183 /* validate settings */
2184 err = 0;
2185
79c97e97 2186 if (!rdev->ops->add_station) {
5727ef1b
JB		 2187 err = -EOPNOTSUPP;
2188 goto out;
2189 }
2190
79c97e97 2191 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2192
2193 out:
2194 if (params.vlan)
2195 dev_put(params.vlan);
5727ef1b
JB		 2196 return err;
2197}
2198
2199static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2200{
4c476991
JB		 2201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2202 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2203 u8 *mac_addr = NULL;
2204
2205 if (info->attrs[NL80211_ATTR_MAC])
2206 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2207
e80cf853 2208 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2209 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2210 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2211 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2212 return -EINVAL;
5727ef1b 2213
4c476991
JB		 2214 if (!rdev->ops->del_station)
2215 return -EOPNOTSUPP;
3b85875a 2216
4c476991 2217 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2218}
2219
2ec600d6
LCC		 2220static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2221 int flags, struct net_device *dev,
2222 u8 *dst, u8 *next_hop,
2223 struct mpath_info *pinfo)
2224{
2225 void *hdr;
2226 struct nlattr *pinfoattr;
2227
2228 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2229 if (!hdr)
2230 return -1;
2231
2232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2233 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2234 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2235
f5ea9120
JB		 2236 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2237
2ec600d6
LCC		 2238 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2239 if (!pinfoattr)
2240 goto nla_put_failure;
2241 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2242 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2243 pinfo->frame_qlen);
d19b3bf6
RP		 2244 if (pinfo->filled & MPATH_INFO_SN)
2245 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2246 pinfo->sn);
2ec600d6
LCC		 2247 if (pinfo->filled & MPATH_INFO_METRIC)
2248 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2249 pinfo->metric);
2250 if (pinfo->filled & MPATH_INFO_EXPTIME)
2251 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2252 pinfo->exptime);
2253 if (pinfo->filled & MPATH_INFO_FLAGS)
2254 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2255 pinfo->flags);
2256 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2257 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2258 pinfo->discovery_timeout);
2259 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2260 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2261 pinfo->discovery_retries);
2262
2263 nla_nest_end(msg, pinfoattr);
2264
2265 return genlmsg_end(msg, hdr);
2266
2267 nla_put_failure:
bc3ed28c
TG		 2268 genlmsg_cancel(msg, hdr);
2269 return -EMSGSIZE;
2ec600d6
LCC		 2270}
2271
2272static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2273 struct netlink_callback *cb)
2ec600d6 2274{
2ec600d6
LCC		 2275 struct mpath_info pinfo;
2276 struct cfg80211_registered_device *dev;
bba95fef 2277 struct net_device *netdev;
2ec600d6
LCC		 2278 u8 dst[ETH_ALEN];
2279 u8 next_hop[ETH_ALEN];
bba95fef 2280 int path_idx = cb->args[1];
2ec600d6 2281 int err;
2ec600d6 2282
67748893
JB		 2283 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2284 if (err)
2285 return err;
bba95fef
JB		 2286
2287 if (!dev->ops->dump_mpath) {
eec60b03 2288 err = -EOPNOTSUPP;
bba95fef
JB		 2289 goto out_err;
2290 }
2291
eec60b03
JM		 2292 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2293 err = -EOPNOTSUPP;
0448b5fc 2294 goto out_err;
eec60b03
JM		 2295 }
2296
bba95fef
JB		 2297 while (1) {
2298 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2299 dst, next_hop, &pinfo);
2300 if (err == -ENOENT)
2ec600d6 2301 break;
bba95fef 2302 if (err)
3b85875a 2303 goto out_err;
2ec600d6 2304
bba95fef
JB		 2305 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2306 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2307 netdev, dst, next_hop,
2308 &pinfo) < 0)
2309 goto out;
2ec600d6 2310
bba95fef 2311 path_idx++;
2ec600d6 2312 }
2ec600d6 2313
2ec600d6 2314
bba95fef
JB		 2315 out:
2316 cb->args[1] = path_idx;
2317 err = skb->len;
bba95fef 2318 out_err:
67748893 2319 nl80211_finish_netdev_dump(dev);
bba95fef 2320 return err;
2ec600d6
LCC		 2321}
2322
2323static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2324{
4c476991 2325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2326 int err;
4c476991 2327 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2328 struct mpath_info pinfo;
2329 struct sk_buff *msg;
2330 u8 *dst = NULL;
2331 u8 next_hop[ETH_ALEN];
2332
2333 memset(&pinfo, 0, sizeof(pinfo));
2334
2335 if (!info->attrs[NL80211_ATTR_MAC])
2336 return -EINVAL;
2337
2338 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2339
4c476991
JB		 2340 if (!rdev->ops->get_mpath)
2341 return -EOPNOTSUPP;
2ec600d6 2342
4c476991
JB		 2343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2344 return -EOPNOTSUPP;
eec60b03 2345
79c97e97 2346 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2347 if (err)
4c476991 2348 return err;
2ec600d6 2349
fd2120ca 2350 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2351 if (!msg)
4c476991 2352 return -ENOMEM;
2ec600d6
LCC		 2353
2354 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2355 dev, dst, next_hop, &pinfo) < 0) {
2356 nlmsg_free(msg);
2357 return -ENOBUFS;
2358 }
3b85875a 2359
4c476991 2360 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2361}
2362
2363static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2364{
4c476991
JB		 2365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2366 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2367 u8 *dst = NULL;
2368 u8 *next_hop = NULL;
2369
2370 if (!info->attrs[NL80211_ATTR_MAC])
2371 return -EINVAL;
2372
2373 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2374 return -EINVAL;
2375
2376 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2377 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2378
4c476991
JB		 2379 if (!rdev->ops->change_mpath)
2380 return -EOPNOTSUPP;
35a8efe1 2381
4c476991
JB		 2382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2383 return -EOPNOTSUPP;
2ec600d6 2384
4c476991 2385 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2386}
4c476991 2387
2ec600d6
LCC		 2388static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2389{
4c476991
JB		 2390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2391 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2392 u8 *dst = NULL;
2393 u8 *next_hop = NULL;
2394
2395 if (!info->attrs[NL80211_ATTR_MAC])
2396 return -EINVAL;
2397
2398 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2399 return -EINVAL;
2400
2401 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2402 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2403
4c476991
JB		 2404 if (!rdev->ops->add_mpath)
2405 return -EOPNOTSUPP;
35a8efe1 2406
4c476991
JB		 2407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2408 return -EOPNOTSUPP;
2ec600d6 2409
4c476991 2410 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2411}
2412
2413static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2414{
4c476991
JB		 2415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2416 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2417 u8 *dst = NULL;
2418
2419 if (info->attrs[NL80211_ATTR_MAC])
2420 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2421
4c476991
JB		 2422 if (!rdev->ops->del_mpath)
2423 return -EOPNOTSUPP;
3b85875a 2424
4c476991 2425 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2426}
2427
9f1ba906
JM		 2428static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2429{
4c476991
JB		 2430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2431 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2432 struct bss_parameters params;
2433
2434 memset(&params, 0, sizeof(params));
2435 /* default to not changing parameters */
2436 params.use_cts_prot = -1;
2437 params.use_short_preamble = -1;
2438 params.use_short_slot_time = -1;
fd8aaaf3 2439 params.ap_isolate = -1;
9f1ba906
JM		 2440
2441 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2442 params.use_cts_prot =
2443 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2444 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2445 params.use_short_preamble =
2446 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2447 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2448 params.use_short_slot_time =
2449 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2450 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2451 params.basic_rates =
2452 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2453 params.basic_rates_len =
2454 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2455 }
fd8aaaf3
FF		 2456 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2457 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
9f1ba906 2458
4c476991
JB		 2459 if (!rdev->ops->change_bss)
2460 return -EOPNOTSUPP;
9f1ba906 2461
074ac8df 2462 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2463 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2464 return -EOPNOTSUPP;
3b85875a 2465
4c476991 2466 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2467}
2468
b54452b0 2469static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2470 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2471 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2472 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2473 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2474 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2475 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2476};
2477
2478static int parse_reg_rule(struct nlattr *tb[],
2479 struct ieee80211_reg_rule *reg_rule)
2480{
2481 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2482 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2483
2484 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2485 return -EINVAL;
2486 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2487 return -EINVAL;
2488 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2489 return -EINVAL;
2490 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2491 return -EINVAL;
2492 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2493 return -EINVAL;
2494
2495 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2496
2497 freq_range->start_freq_khz =
2498 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2499 freq_range->end_freq_khz =
2500 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2501 freq_range->max_bandwidth_khz =
2502 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2503
2504 power_rule->max_eirp =
2505 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2506
2507 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2508 power_rule->max_antenna_gain =
2509 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2510
2511 return 0;
2512}
2513
2514static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2515{
2516 int r;
2517 char *data = NULL;
2518
80778f18
LR		 2519 /*
2520 * You should only get this when cfg80211 hasn't yet initialized
2521 * completely when built-in to the kernel right between the time
2522 * window between nl80211_init() and regulatory_init(), if that is
2523 * even possible.
2524 */
2525 mutex_lock(&cfg80211_mutex);
2526 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2527 mutex_unlock(&cfg80211_mutex);
2528 return -EINPROGRESS;
80778f18 2529 }
fe33eb39 2530 mutex_unlock(&cfg80211_mutex);
80778f18 2531
fe33eb39
LR		 2532 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2533 return -EINVAL;
b2e1b302
LR		 2534
2535 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2536
fe33eb39
LR		 2537 r = regulatory_hint_user(data);
2538
b2e1b302
LR		 2539 return r;
2540}
2541
93da9cc1 2542static int nl80211_get_mesh_params(struct sk_buff *skb,
2543 struct genl_info *info)
2544{
4c476991 2545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
93da9cc1 2546 struct mesh_config cur_params;
2547 int err;
4c476991 2548 struct net_device *dev = info->user_ptr[1];
93da9cc1 2549 void *hdr;
2550 struct nlattr *pinfoattr;
2551 struct sk_buff *msg;
2552
4c476991
JB		 2553 if (!rdev->ops->get_mesh_params)
2554 return -EOPNOTSUPP;
f3f92586 2555
93da9cc1 2556 /* Get the mesh params */
79c97e97 2557 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
93da9cc1 2558 if (err)
4c476991 2559 return err;
93da9cc1 2560
2561 /* Draw up a netlink message to send back */
fd2120ca 2562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2563 if (!msg)
2564 return -ENOMEM;
93da9cc1 2565 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2566 NL80211_CMD_GET_MESH_PARAMS);
2567 if (!hdr)
2568 goto nla_put_failure;
2569 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2570 if (!pinfoattr)
2571 goto nla_put_failure;
2572 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2573 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2574 cur_params.dot11MeshRetryTimeout);
2575 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2576 cur_params.dot11MeshConfirmTimeout);
2577 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2578 cur_params.dot11MeshHoldingTimeout);
2579 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2580 cur_params.dot11MeshMaxPeerLinks);
2581 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2582 cur_params.dot11MeshMaxRetries);
2583 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2584 cur_params.dot11MeshTTL);
45904f21
JC		 2585 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2586 cur_params.element_ttl);
93da9cc1 2587 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2588 cur_params.auto_open_plinks);
2589 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2590 cur_params.dot11MeshHWMPmaxPREQretries);
2591 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2592 cur_params.path_refresh_time);
2593 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2594 cur_params.min_discovery_timeout);
2595 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2596 cur_params.dot11MeshHWMPactivePathTimeout);
2597 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2598 cur_params.dot11MeshHWMPpreqMinInterval);
2599 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2600 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2601 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2602 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2603 nla_nest_end(msg, pinfoattr);
2604 genlmsg_end(msg, hdr);
4c476991 2605 return genlmsg_reply(msg, info);
93da9cc1 2606
3b85875a 2607 nla_put_failure:
93da9cc1 2608 genlmsg_cancel(msg, hdr);
d080e275 2609 nlmsg_free(msg);
4c476991 2610 return -ENOBUFS;
93da9cc1 2611}
2612
2613#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2614do {\
2615 if (table[attr_num]) {\
2616 cfg.param = nla_fn(table[attr_num]); \
2617 mask |= (1 << (attr_num - 1)); \
2618 } \
2619} while (0);\
2620
b54452b0 2621static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2622 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2623 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2624 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2625 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2626 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2627 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2628 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2629 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2630
2631 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2632 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2633 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2634 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2635 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2636 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2637};
2638
2639static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2640{
93da9cc1 2641 u32 mask;
4c476991
JB		 2642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2643 struct net_device *dev = info->user_ptr[1];
93da9cc1 2644 struct mesh_config cfg;
2645 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2646 struct nlattr *parent_attr;
2647
2648 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2649 if (!parent_attr)
2650 return -EINVAL;
2651 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2652 parent_attr, nl80211_meshconf_params_policy))
2653 return -EINVAL;
2654
4c476991
JB		 2655 if (!rdev->ops->set_mesh_params)
2656 return -EOPNOTSUPP;
f3f92586 2657
93da9cc1 2658 /* This makes sure that there aren't more than 32 mesh config
2659 * parameters (otherwise our bitfield scheme would not work.) */
2660 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2661
2662 /* Fill in the params struct */
2663 mask = 0;
2664 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2665 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2666 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2667 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2668 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2669 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2670 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2671 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2673 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2674 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2675 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2676 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2677 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2679 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2681 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2682 nla_get_u8);
2683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2684 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2685 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2686 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2687 nla_get_u16);
2688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2689 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2690 nla_get_u32);
2691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2692 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2693 nla_get_u16);
2694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2695 dot11MeshHWMPnetDiameterTraversalTime,
2696 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2697 nla_get_u16);
63c5723b
RP		 2698 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2699 dot11MeshHWMPRootMode, mask,
2700 NL80211_MESHCONF_HWMP_ROOTMODE,
2701 nla_get_u8);
93da9cc1 2702
2703 /* Apply changes */
4c476991 2704 return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2705}
2706
2707#undef FILL_IN_MESH_PARAM_IF_SET
2708
f130347c
LR		 2709static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2710{
2711 struct sk_buff *msg;
2712 void *hdr = NULL;
2713 struct nlattr *nl_reg_rules;
2714 unsigned int i;
2715 int err = -EINVAL;
2716
a1794390 2717 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2718
2719 if (!cfg80211_regdomain)
2720 goto out;
2721
fd2120ca 2722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2723 if (!msg) {
2724 err = -ENOBUFS;
2725 goto out;
2726 }
2727
2728 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2729 NL80211_CMD_GET_REG);
2730 if (!hdr)
2731 goto nla_put_failure;
2732
2733 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2734 cfg80211_regdomain->alpha2);
2735
2736 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2737 if (!nl_reg_rules)
2738 goto nla_put_failure;
2739
2740 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2741 struct nlattr *nl_reg_rule;
2742 const struct ieee80211_reg_rule *reg_rule;
2743 const struct ieee80211_freq_range *freq_range;
2744 const struct ieee80211_power_rule *power_rule;
2745
2746 reg_rule = &cfg80211_regdomain->reg_rules[i];
2747 freq_range = &reg_rule->freq_range;
2748 power_rule = &reg_rule->power_rule;
2749
2750 nl_reg_rule = nla_nest_start(msg, i);
2751 if (!nl_reg_rule)
2752 goto nla_put_failure;
2753
2754 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2755 reg_rule->flags);
2756 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2757 freq_range->start_freq_khz);
2758 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2759 freq_range->end_freq_khz);
2760 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2761 freq_range->max_bandwidth_khz);
2762 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2763 power_rule->max_antenna_gain);
2764 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2765 power_rule->max_eirp);
2766
2767 nla_nest_end(msg, nl_reg_rule);
2768 }
2769
2770 nla_nest_end(msg, nl_reg_rules);
2771
2772 genlmsg_end(msg, hdr);
134e6375 2773 err = genlmsg_reply(msg, info);
f130347c
LR		 2774 goto out;
2775
2776nla_put_failure:
2777 genlmsg_cancel(msg, hdr);
d080e275 2778 nlmsg_free(msg);
f130347c
LR		 2779 err = -EMSGSIZE;
2780out:
a1794390 2781 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2782 return err;
2783}
2784
b2e1b302
LR		 2785static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2786{
2787 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2788 struct nlattr *nl_reg_rule;
2789 char *alpha2 = NULL;
2790 int rem_reg_rules = 0, r = 0;
2791 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2792 struct ieee80211_regdomain *rd = NULL;
2793
2794 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2795 return -EINVAL;
2796
2797 if (!info->attrs[NL80211_ATTR_REG_RULES])
2798 return -EINVAL;
2799
2800 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2801
2802 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2803 rem_reg_rules) {
2804 num_rules++;
2805 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2806 return -EINVAL;
b2e1b302
LR		 2807 }
2808
61405e97
LR		 2809 mutex_lock(&cfg80211_mutex);
2810
d0e18f83
LR		 2811 if (!reg_is_valid_request(alpha2)) {
2812 r = -EINVAL;
2813 goto bad_reg;
2814 }
b2e1b302
LR		 2815
2816 size_of_regd = sizeof(struct ieee80211_regdomain) +
2817 (num_rules * sizeof(struct ieee80211_reg_rule));
2818
2819 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2820 if (!rd) {
2821 r = -ENOMEM;
2822 goto bad_reg;
2823 }
b2e1b302
LR		 2824
2825 rd->n_reg_rules = num_rules;
2826 rd->alpha2[0] = alpha2[0];
2827 rd->alpha2[1] = alpha2[1];
2828
2829 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2830 rem_reg_rules) {
2831 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2832 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2833 reg_rule_policy);
2834 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2835 if (r)
2836 goto bad_reg;
2837
2838 rule_idx++;
2839
d0e18f83
LR		 2840 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2841 r = -EINVAL;
b2e1b302 2842 goto bad_reg;
d0e18f83 2843 }
b2e1b302
LR		 2844 }
2845
2846 BUG_ON(rule_idx != num_rules);
2847
b2e1b302 2848 r = set_regdom(rd);
61405e97 2849
a1794390 2850 mutex_unlock(&cfg80211_mutex);
d0e18f83 2851
b2e1b302
LR		 2852 return r;
2853
d2372b31 2854 bad_reg:
61405e97 2855 mutex_unlock(&cfg80211_mutex);
b2e1b302 2856 kfree(rd);
d0e18f83 2857 return r;
b2e1b302
LR		 2858}
2859
83f5e2cf
JB		 2860static int validate_scan_freqs(struct nlattr *freqs)
2861{
2862 struct nlattr *attr1, *attr2;
2863 int n_channels = 0, tmp1, tmp2;
2864
2865 nla_for_each_nested(attr1, freqs, tmp1) {
2866 n_channels++;
2867 /*
2868 * Some hardware has a limited channel list for
2869 * scanning, and it is pretty much nonsensical
2870 * to scan for a channel twice, so disallow that
2871 * and don't require drivers to check that the
2872 * channel list they get isn't longer than what
2873 * they can scan, as long as they can scan all
2874 * the channels they registered at once.
2875 */
2876 nla_for_each_nested(attr2, freqs, tmp2)
2877 if (attr1 != attr2 &&
2878 nla_get_u32(attr1) == nla_get_u32(attr2))
2879 return 0;
2880 }
2881
2882 return n_channels;
2883}
2884
2a519311
JB		 2885static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2886{
4c476991
JB		 2887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2888 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2889 struct cfg80211_scan_request *request;
2890 struct cfg80211_ssid *ssid;
2891 struct ieee80211_channel *channel;
2892 struct nlattr *attr;
2893 struct wiphy *wiphy;
83f5e2cf 2894 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2895 enum ieee80211_band band;
70692ad2 2896 size_t ie_len;
2a519311 2897
f4a11bb0
JB		 2898 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2899 return -EINVAL;
2900
79c97e97 2901 wiphy = &rdev->wiphy;
2a519311 2902
4c476991
JB		 2903 if (!rdev->ops->scan)
2904 return -EOPNOTSUPP;
2a519311 2905
4c476991
JB		 2906 if (rdev->scan_req)
2907 return -EBUSY;
2a519311
JB		 2908
2909 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2910 n_channels = validate_scan_freqs(
2911 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2912 if (!n_channels)
2913 return -EINVAL;
2a519311 2914 } else {
83f5e2cf
JB		 2915 n_channels = 0;
2916
2a519311
JB		 2917 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2918 if (wiphy->bands[band])
2919 n_channels += wiphy->bands[band]->n_channels;
2920 }
2921
2922 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2923 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2924 n_ssids++;
2925
4c476991
JB		 2926 if (n_ssids > wiphy->max_scan_ssids)
2927 return -EINVAL;
2a519311 2928
70692ad2
JM		 2929 if (info->attrs[NL80211_ATTR_IE])
2930 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2931 else
2932 ie_len = 0;
2933
4c476991
JB		 2934 if (ie_len > wiphy->max_scan_ie_len)
2935 return -EINVAL;
18a83659 2936
2a519311
JB		 2937 request = kzalloc(sizeof(*request)
2938 + sizeof(*ssid) * n_ssids
70692ad2
JM		 2939 + sizeof(channel) * n_channels
2940 + ie_len, GFP_KERNEL);
4c476991
JB		 2941 if (!request)
2942 return -ENOMEM;
2a519311 2943
2a519311 2944 if (n_ssids)
5ba63533 2945 request->ssids = (void *)&request->channels[n_channels];
2a519311 2946 request->n_ssids = n_ssids;
70692ad2
JM		 2947 if (ie_len) {
2948 if (request->ssids)
2949 request->ie = (void *)(request->ssids + n_ssids);
2950 else
2951 request->ie = (void *)(request->channels + n_channels);
2952 }
2a519311 2953
584991dc 2954 i = 0;
2a519311
JB		 2955 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2956 /* user specified, bail out if channel not found */
2a519311 2957 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 2958 struct ieee80211_channel *chan;
2959
2960 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2961
2962 if (!chan) {
2a519311
JB		 2963 err = -EINVAL;
2964 goto out_free;
2965 }
584991dc
JB		 2966
2967 /* ignore disabled channels */
2968 if (chan->flags & IEEE80211_CHAN_DISABLED)
2969 continue;
2970
2971 request->channels[i] = chan;
2a519311
JB		 2972 i++;
2973 }
2974 } else {
2975 /* all channels */
2a519311
JB		 2976 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2977 int j;
2978 if (!wiphy->bands[band])
2979 continue;
2980 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 2981 struct ieee80211_channel *chan;
2982
2983 chan = &wiphy->bands[band]->channels[j];
2984
2985 if (chan->flags & IEEE80211_CHAN_DISABLED)
2986 continue;
2987
2988 request->channels[i] = chan;
2a519311
JB		 2989 i++;
2990 }
2991 }
2992 }
2993
584991dc
JB		 2994 if (!i) {
2995 err = -EINVAL;
2996 goto out_free;
2997 }
2998
2999 request->n_channels = i;
3000
2a519311
JB		 3001 i = 0;
3002 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3003 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3004 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3005 err = -EINVAL;
3006 goto out_free;
3007 }
3008 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3009 request->ssids[i].ssid_len = nla_len(attr);
3010 i++;
3011 }
3012 }
3013
70692ad2
JM		 3014 if (info->attrs[NL80211_ATTR_IE]) {
3015 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3016 memcpy((void *)request->ie,
3017 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3018 request->ie_len);
3019 }
3020
463d0183 3021 request->dev = dev;
79c97e97 3022 request->wiphy = &rdev->wiphy;
2a519311 3023
79c97e97
JB		 3024 rdev->scan_req = request;
3025 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3026
463d0183 3027 if (!err) {
79c97e97 3028 nl80211_send_scan_start(rdev, dev);
463d0183 3029 dev_hold(dev);
4c476991 3030 } else {
2a519311 3031 out_free:
79c97e97 3032 rdev->scan_req = NULL;
2a519311
JB		 3033 kfree(request);
3034 }
3b85875a 3035
2a519311
JB		 3036 return err;
3037}
3038
3039static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3040 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3041 struct wireless_dev *wdev,
3042 struct cfg80211_internal_bss *intbss)
2a519311 3043{
48ab905d 3044 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3045 void *hdr;
3046 struct nlattr *bss;
48ab905d
JB		 3047 int i;
3048
3049 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3050
3051 hdr = nl80211hdr_put(msg, pid, seq, flags,
3052 NL80211_CMD_NEW_SCAN_RESULTS);
3053 if (!hdr)
3054 return -1;
3055
f5ea9120 3056 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3057 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3058
3059 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3060 if (!bss)
3061 goto nla_put_failure;
3062 if (!is_zero_ether_addr(res->bssid))
3063 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3064 if (res->information_elements && res->len_information_elements)
3065 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3066 res->len_information_elements,
3067 res->information_elements);
34a6eddb
JM		 3068 if (res->beacon_ies && res->len_beacon_ies &&
3069 res->beacon_ies != res->information_elements)
3070 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3071 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3072 if (res->tsf)
3073 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3074 if (res->beacon_interval)
3075 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3076 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3077 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3078 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3079 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3080
77965c97 3081 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3082 case CFG80211_SIGNAL_TYPE_MBM:
3083 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3084 break;
3085 case CFG80211_SIGNAL_TYPE_UNSPEC:
3086 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3087 break;
3088 default:
3089 break;
3090 }
3091
48ab905d 3092 switch (wdev->iftype) {
074ac8df 3093 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3094 case NL80211_IFTYPE_STATION:
3095 if (intbss == wdev->current_bss)
3096 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3097 NL80211_BSS_STATUS_ASSOCIATED);
3098 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3099 if (intbss != wdev->auth_bsses[i])
3100 continue;
3101 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3102 NL80211_BSS_STATUS_AUTHENTICATED);
3103 break;
3104 }
3105 break;
3106 case NL80211_IFTYPE_ADHOC:
3107 if (intbss == wdev->current_bss)
3108 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3109 NL80211_BSS_STATUS_IBSS_JOINED);
3110 break;
3111 default:
3112 break;
3113 }
3114
2a519311
JB		 3115 nla_nest_end(msg, bss);
3116
3117 return genlmsg_end(msg, hdr);
3118
3119 nla_put_failure:
3120 genlmsg_cancel(msg, hdr);
3121 return -EMSGSIZE;
3122}
3123
3124static int nl80211_dump_scan(struct sk_buff *skb,
3125 struct netlink_callback *cb)
3126{
48ab905d
JB		 3127 struct cfg80211_registered_device *rdev;
3128 struct net_device *dev;
2a519311 3129 struct cfg80211_internal_bss *scan;
48ab905d 3130 struct wireless_dev *wdev;
2a519311
JB		 3131 int start = cb->args[1], idx = 0;
3132 int err;
3133
67748893
JB		 3134 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3135 if (err)
3136 return err;
2a519311 3137
48ab905d 3138 wdev = dev->ieee80211_ptr;
2a519311 3139
48ab905d
JB		 3140 wdev_lock(wdev);
3141 spin_lock_bh(&rdev->bss_lock);
3142 cfg80211_bss_expire(rdev);
3143
3144 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3145 if (++idx <= start)
3146 continue;
3147 if (nl80211_send_bss(skb,
3148 NETLINK_CB(cb->skb).pid,
3149 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3150 rdev, wdev, scan) < 0) {
2a519311 3151 idx--;
67748893 3152 break;
2a519311
JB		 3153 }
3154 }
3155
48ab905d
JB		 3156 spin_unlock_bh(&rdev->bss_lock);
3157 wdev_unlock(wdev);
2a519311
JB		 3158
3159 cb->args[1] = idx;
67748893 3160 nl80211_finish_netdev_dump(rdev);
2a519311 3161
67748893 3162 return skb->len;
2a519311
JB		 3163}
3164
61fa713c
HS		 3165static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3166 int flags, struct net_device *dev,
3167 struct survey_info *survey)
3168{
3169 void *hdr;
3170 struct nlattr *infoattr;
3171
3172 /* Survey without a channel doesn't make sense */
3173 if (!survey->channel)
3174 return -EINVAL;
3175
3176 hdr = nl80211hdr_put(msg, pid, seq, flags,
3177 NL80211_CMD_NEW_SURVEY_RESULTS);
3178 if (!hdr)
3179 return -ENOMEM;
3180
3181 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3182
3183 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3184 if (!infoattr)
3185 goto nla_put_failure;
3186
3187 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3188 survey->channel->center_freq);
3189 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3190 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3191 survey->noise);
17e5a808
FF		 3192 if (survey->filled & SURVEY_INFO_IN_USE)
3193 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3194 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3195 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3196 survey->channel_time);
3197 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3198 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3199 survey->channel_time_busy);
3200 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3201 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3202 survey->channel_time_ext_busy);
3203 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3204 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3205 survey->channel_time_rx);
3206 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3207 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3208 survey->channel_time_tx);
61fa713c
HS		 3209
3210 nla_nest_end(msg, infoattr);
3211
3212 return genlmsg_end(msg, hdr);
3213
3214 nla_put_failure:
3215 genlmsg_cancel(msg, hdr);
3216 return -EMSGSIZE;
3217}
3218
3219static int nl80211_dump_survey(struct sk_buff *skb,
3220 struct netlink_callback *cb)
3221{
3222 struct survey_info survey;
3223 struct cfg80211_registered_device *dev;
3224 struct net_device *netdev;
61fa713c
HS		 3225 int survey_idx = cb->args[1];
3226 int res;
3227
67748893
JB		 3228 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3229 if (res)
3230 return res;
61fa713c
HS		 3231
3232 if (!dev->ops->dump_survey) {
3233 res = -EOPNOTSUPP;
3234 goto out_err;
3235 }
3236
3237 while (1) {
3238 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3239 &survey);
3240 if (res == -ENOENT)
3241 break;
3242 if (res)
3243 goto out_err;
3244
3245 if (nl80211_send_survey(skb,
3246 NETLINK_CB(cb->skb).pid,
3247 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3248 netdev,
3249 &survey) < 0)
3250 goto out;
3251 survey_idx++;
3252 }
3253
3254 out:
3255 cb->args[1] = survey_idx;
3256 res = skb->len;
3257 out_err:
67748893 3258 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3259 return res;
3260}
3261
255e737e
JM		 3262static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3263{
b23aa676
SO		 3264 return auth_type <= NL80211_AUTHTYPE_MAX;
3265}
3266
3267static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3268{
3269 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3270 NL80211_WPA_VERSION_2));
3271}
3272
3273static bool nl80211_valid_akm_suite(u32 akm)
3274{
3275 return akm == WLAN_AKM_SUITE_8021X ||
3276 akm == WLAN_AKM_SUITE_PSK;
3277}
3278
3279static bool nl80211_valid_cipher_suite(u32 cipher)
3280{
3281 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3282 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3283 cipher == WLAN_CIPHER_SUITE_TKIP ||
3284 cipher == WLAN_CIPHER_SUITE_CCMP ||
3285 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3286}
3287
b23aa676 3288
636a5d36
JM		 3289static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3290{
4c476991
JB		 3291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3292 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3293 struct ieee80211_channel *chan;
3294 const u8 *bssid, *ssid, *ie = NULL;
3295 int err, ssid_len, ie_len = 0;
3296 enum nl80211_auth_type auth_type;
fffd0934 3297 struct key_parse key;
d5cdfacb 3298 bool local_state_change;
636a5d36 3299
f4a11bb0
JB		 3300 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3301 return -EINVAL;
3302
3303 if (!info->attrs[NL80211_ATTR_MAC])
3304 return -EINVAL;
3305
1778092e
JM		 3306 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3307 return -EINVAL;
3308
19957bb3
JB		 3309 if (!info->attrs[NL80211_ATTR_SSID])
3310 return -EINVAL;
3311
3312 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3313 return -EINVAL;
3314
fffd0934
JB		 3315 err = nl80211_parse_key(info, &key);
3316 if (err)
3317 return err;
3318
3319 if (key.idx >= 0) {
e31b8213
JB		 3320 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3321 return -EINVAL;
fffd0934
JB		 3322 if (!key.p.key || !key.p.key_len)
3323 return -EINVAL;
3324 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3325 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3326 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3327 key.p.key_len != WLAN_KEY_LEN_WEP104))
3328 return -EINVAL;
3329 if (key.idx > 4)
3330 return -EINVAL;
3331 } else {
3332 key.p.key_len = 0;
3333 key.p.key = NULL;
3334 }
3335
afea0b7a
JB		 3336 if (key.idx >= 0) {
3337 int i;
3338 bool ok = false;
3339 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3340 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3341 ok = true;
3342 break;
3343 }
3344 }
4c476991
JB		 3345 if (!ok)
3346 return -EINVAL;
afea0b7a
JB		 3347 }
3348
4c476991
JB		 3349 if (!rdev->ops->auth)
3350 return -EOPNOTSUPP;
636a5d36 3351
074ac8df 3352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3354 return -EOPNOTSUPP;
eec60b03 3355
19957bb3 3356 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3357 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3358 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3359 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3360 return -EINVAL;
636a5d36 3361
19957bb3
JB		 3362 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3363 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3364
3365 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3366 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3367 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3368 }
3369
19957bb3 3370 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3371 if (!nl80211_valid_auth_type(auth_type))
3372 return -EINVAL;
636a5d36 3373
d5cdfacb
JM		 3374 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3375
4c476991
JB		 3376 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3377 ssid, ssid_len, ie, ie_len,
3378 key.p.key, key.p.key_len, key.idx,
3379 local_state_change);
636a5d36
JM		 3380}
3381
c0692b8f
JB		 3382static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3383 struct genl_info *info,
3dc27d25
JB		 3384 struct cfg80211_crypto_settings *settings,
3385 int cipher_limit)
b23aa676 3386{
c0b2bbd8
JB		 3387 memset(settings, 0, sizeof(*settings));
3388
b23aa676
SO		 3389 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3390
c0692b8f
JB		 3391 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3392 u16 proto;
3393 proto = nla_get_u16(
3394 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3395 settings->control_port_ethertype = cpu_to_be16(proto);
3396 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3397 proto != ETH_P_PAE)
3398 return -EINVAL;
3399 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3400 settings->control_port_no_encrypt = true;
3401 } else
3402 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3403
b23aa676
SO		 3404 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3405 void *data;
3406 int len, i;
3407
3408 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3409 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3410 settings->n_ciphers_pairwise = len / sizeof(u32);
3411
3412 if (len % sizeof(u32))
3413 return -EINVAL;
3414
3dc27d25 3415 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3416 return -EINVAL;
3417
3418 memcpy(settings->ciphers_pairwise, data, len);
3419
3420 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3421 if (!nl80211_valid_cipher_suite(
3422 settings->ciphers_pairwise[i]))
3423 return -EINVAL;
3424 }
3425
3426 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3427 settings->cipher_group =
3428 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3429 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3430 return -EINVAL;
3431 }
3432
3433 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3434 settings->wpa_versions =
3435 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3436 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3437 return -EINVAL;
3438 }
3439
3440 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3441 void *data;
3442 int len, i;
3443
3444 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3445 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3446 settings->n_akm_suites = len / sizeof(u32);
3447
3448 if (len % sizeof(u32))
3449 return -EINVAL;
3450
3451 memcpy(settings->akm_suites, data, len);
3452
3453 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3454 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3455 return -EINVAL;
3456 }
3457
3458 return 0;
3459}
3460
636a5d36
JM		 3461static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3462{
4c476991
JB		 3463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3464 struct net_device *dev = info->user_ptr[1];
19957bb3 3465 struct cfg80211_crypto_settings crypto;
f444de05 3466 struct ieee80211_channel *chan;
3e5d7649 3467 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3468 int err, ssid_len, ie_len = 0;
3469 bool use_mfp = false;
636a5d36 3470
f4a11bb0
JB		 3471 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3472 return -EINVAL;
3473
3474 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3475 !info->attrs[NL80211_ATTR_SSID] ||
3476 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3477 return -EINVAL;
3478
4c476991
JB		 3479 if (!rdev->ops->assoc)
3480 return -EOPNOTSUPP;
636a5d36 3481
074ac8df 3482 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3483 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3484 return -EOPNOTSUPP;
eec60b03 3485
19957bb3 3486 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3487
19957bb3
JB		 3488 chan = ieee80211_get_channel(&rdev->wiphy,
3489 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3490 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3491 return -EINVAL;
636a5d36 3492
19957bb3
JB		 3493 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3494 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3495
3496 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3497 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3498 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3499 }
3500
dc6382ce 3501 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3502 enum nl80211_mfp mfp =
dc6382ce 3503 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3504 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3505 use_mfp = true;
4c476991
JB		 3506 else if (mfp != NL80211_MFP_NO)
3507 return -EINVAL;
dc6382ce
JM		 3508 }
3509
3e5d7649
JB		 3510 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3511 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3512
c0692b8f 3513 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3514 if (!err)
3e5d7649
JB		 3515 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3516 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3517 &crypto);
636a5d36 3518
636a5d36
JM		 3519 return err;
3520}
3521
3522static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3523{
4c476991
JB		 3524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3525 struct net_device *dev = info->user_ptr[1];
19957bb3 3526 const u8 *ie = NULL, *bssid;
4c476991 3527 int ie_len = 0;
19957bb3 3528 u16 reason_code;
d5cdfacb 3529 bool local_state_change;
636a5d36 3530
f4a11bb0
JB		 3531 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3532 return -EINVAL;
3533
3534 if (!info->attrs[NL80211_ATTR_MAC])
3535 return -EINVAL;
3536
3537 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3538 return -EINVAL;
3539
4c476991
JB		 3540 if (!rdev->ops->deauth)
3541 return -EOPNOTSUPP;
636a5d36 3542
074ac8df 3543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3544 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3545 return -EOPNOTSUPP;
eec60b03 3546
19957bb3 3547 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3548
19957bb3
JB		 3549 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3550 if (reason_code == 0) {
f4a11bb0 3551 /* Reason Code 0 is reserved */
4c476991 3552 return -EINVAL;
255e737e 3553 }
636a5d36
JM		 3554
3555 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3556 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3557 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3558 }
3559
d5cdfacb
JM		 3560 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3561
4c476991
JB		 3562 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3563 local_state_change);
636a5d36
JM		 3564}
3565
3566static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3567{
4c476991
JB		 3568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3569 struct net_device *dev = info->user_ptr[1];
19957bb3 3570 const u8 *ie = NULL, *bssid;
4c476991 3571 int ie_len = 0;
19957bb3 3572 u16 reason_code;
d5cdfacb 3573 bool local_state_change;
636a5d36 3574
f4a11bb0
JB		 3575 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3576 return -EINVAL;
3577
3578 if (!info->attrs[NL80211_ATTR_MAC])
3579 return -EINVAL;
3580
3581 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3582 return -EINVAL;
3583
4c476991
JB		 3584 if (!rdev->ops->disassoc)
3585 return -EOPNOTSUPP;
636a5d36 3586
074ac8df 3587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3589 return -EOPNOTSUPP;
eec60b03 3590
19957bb3 3591 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3592
19957bb3
JB		 3593 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3594 if (reason_code == 0) {
f4a11bb0 3595 /* Reason Code 0 is reserved */
4c476991 3596 return -EINVAL;
255e737e 3597 }
636a5d36
JM		 3598
3599 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3600 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3601 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3602 }
3603
d5cdfacb
JM		 3604 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3605
4c476991
JB		 3606 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3607 local_state_change);
636a5d36
JM		 3608}
3609
dd5b4cc7
FF		 3610static bool
3611nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3612 int mcast_rate[IEEE80211_NUM_BANDS],
3613 int rateval)
3614{
3615 struct wiphy *wiphy = &rdev->wiphy;
3616 bool found = false;
3617 int band, i;
3618
3619 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3620 struct ieee80211_supported_band *sband;
3621
3622 sband = wiphy->bands[band];
3623 if (!sband)
3624 continue;
3625
3626 for (i = 0; i < sband->n_bitrates; i++) {
3627 if (sband->bitrates[i].bitrate == rateval) {
3628 mcast_rate[band] = i + 1;
3629 found = true;
3630 break;
3631 }
3632 }
3633 }
3634
3635 return found;
3636}
3637
04a773ad
JB		 3638static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3639{
4c476991
JB		 3640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3641 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3642 struct cfg80211_ibss_params ibss;
3643 struct wiphy *wiphy;
fffd0934 3644 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3645 int err;
3646
8e30bc55
JB		 3647 memset(&ibss, 0, sizeof(ibss));
3648
04a773ad
JB		 3649 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3650 return -EINVAL;
3651
3652 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3653 !info->attrs[NL80211_ATTR_SSID] ||
3654 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3655 return -EINVAL;
3656
8e30bc55
JB		 3657 ibss.beacon_interval = 100;
3658
3659 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3660 ibss.beacon_interval =
3661 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3662 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3663 return -EINVAL;
3664 }
3665
4c476991
JB		 3666 if (!rdev->ops->join_ibss)
3667 return -EOPNOTSUPP;
04a773ad 3668
4c476991
JB		 3669 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3670 return -EOPNOTSUPP;
04a773ad 3671
79c97e97 3672 wiphy = &rdev->wiphy;
04a773ad
JB		 3673
3674 if (info->attrs[NL80211_ATTR_MAC])
3675 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3676 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3677 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3678
3679 if (info->attrs[NL80211_ATTR_IE]) {
3680 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3681 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3682 }
3683
3684 ibss.channel = ieee80211_get_channel(wiphy,
3685 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3686 if (!ibss.channel ||
3687 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3688 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3689 return -EINVAL;
04a773ad
JB		 3690
3691 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3692 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3693
fbd2c8dc
TP		 3694 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3695 u8 *rates =
3696 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3697 int n_rates =
3698 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3699 struct ieee80211_supported_band *sband =
3700 wiphy->bands[ibss.channel->band];
3701 int i, j;
3702
4c476991
JB		 3703 if (n_rates == 0)
3704 return -EINVAL;
fbd2c8dc
TP		 3705
3706 for (i = 0; i < n_rates; i++) {
3707 int rate = (rates[i] & 0x7f) * 5;
3708 bool found = false;
3709
3710 for (j = 0; j < sband->n_bitrates; j++) {
3711 if (sband->bitrates[j].bitrate == rate) {
3712 found = true;
3713 ibss.basic_rates |= BIT(j);
3714 break;
3715 }
3716 }
4c476991
JB		 3717 if (!found)
3718 return -EINVAL;
fbd2c8dc 3719 }
fbd2c8dc 3720 }
dd5b4cc7
FF		 3721
3722 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3723 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3724 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3725 return -EINVAL;
fbd2c8dc 3726
4c476991
JB		 3727 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3728 connkeys = nl80211_parse_connkeys(rdev,
3729 info->attrs[NL80211_ATTR_KEYS]);
3730 if (IS_ERR(connkeys))
3731 return PTR_ERR(connkeys);
3732 }
04a773ad 3733
4c476991 3734 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3735 if (err)
3736 kfree(connkeys);
04a773ad
JB		 3737 return err;
3738}
3739
3740static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3741{
4c476991
JB		 3742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3743 struct net_device *dev = info->user_ptr[1];
04a773ad 3744
4c476991
JB		 3745 if (!rdev->ops->leave_ibss)
3746 return -EOPNOTSUPP;
04a773ad 3747
4c476991
JB		 3748 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3749 return -EOPNOTSUPP;
04a773ad 3750
4c476991 3751 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3752}
3753
aff89a9b
JB		 3754#ifdef CONFIG_NL80211_TESTMODE
3755static struct genl_multicast_group nl80211_testmode_mcgrp = {
3756 .name = "testmode",
3757};
3758
3759static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3760{
4c476991 3761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3762 int err;
3763
3764 if (!info->attrs[NL80211_ATTR_TESTDATA])
3765 return -EINVAL;
3766
aff89a9b
JB		 3767 err = -EOPNOTSUPP;
3768 if (rdev->ops->testmode_cmd) {
3769 rdev->testmode_info = info;
3770 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3771 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3772 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3773 rdev->testmode_info = NULL;
3774 }
3775
aff89a9b
JB		 3776 return err;
3777}
3778
3779static struct sk_buff *
3780__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3781 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3782{
3783 struct sk_buff *skb;
3784 void *hdr;
3785 struct nlattr *data;
3786
3787 skb = nlmsg_new(approxlen + 100, gfp);
3788 if (!skb)
3789 return NULL;
3790
3791 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3792 if (!hdr) {
3793 kfree_skb(skb);
3794 return NULL;
3795 }
3796
3797 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3798 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3799
3800 ((void **)skb->cb)[0] = rdev;
3801 ((void **)skb->cb)[1] = hdr;
3802 ((void **)skb->cb)[2] = data;
3803
3804 return skb;
3805
3806 nla_put_failure:
3807 kfree_skb(skb);
3808 return NULL;
3809}
3810
3811struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3812 int approxlen)
3813{
3814 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3815
3816 if (WARN_ON(!rdev->testmode_info))
3817 return NULL;
3818
3819 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3820 rdev->testmode_info->snd_pid,
3821 rdev->testmode_info->snd_seq,
3822 GFP_KERNEL);
3823}
3824EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3825
3826int cfg80211_testmode_reply(struct sk_buff *skb)
3827{
3828 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3829 void *hdr = ((void **)skb->cb)[1];
3830 struct nlattr *data = ((void **)skb->cb)[2];
3831
3832 if (WARN_ON(!rdev->testmode_info)) {
3833 kfree_skb(skb);
3834 return -EINVAL;
3835 }
3836
3837 nla_nest_end(skb, data);
3838 genlmsg_end(skb, hdr);
3839 return genlmsg_reply(skb, rdev->testmode_info);
3840}
3841EXPORT_SYMBOL(cfg80211_testmode_reply);
3842
3843struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3844 int approxlen, gfp_t gfp)
3845{
3846 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3847
3848 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3849}
3850EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3851
3852void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3853{
3854 void *hdr = ((void **)skb->cb)[1];
3855 struct nlattr *data = ((void **)skb->cb)[2];
3856
3857 nla_nest_end(skb, data);
3858 genlmsg_end(skb, hdr);
3859 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3860}
3861EXPORT_SYMBOL(cfg80211_testmode_event);
3862#endif
3863
b23aa676
SO		 3864static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3865{
4c476991
JB		 3866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3867 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3868 struct cfg80211_connect_params connect;
3869 struct wiphy *wiphy;
fffd0934 3870 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3871 int err;
3872
3873 memset(&connect, 0, sizeof(connect));
3874
3875 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3876 return -EINVAL;
3877
3878 if (!info->attrs[NL80211_ATTR_SSID] ||
3879 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3880 return -EINVAL;
3881
3882 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3883 connect.auth_type =
3884 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3885 if (!nl80211_valid_auth_type(connect.auth_type))
3886 return -EINVAL;
3887 } else
3888 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3889
3890 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3891
c0692b8f 3892 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3893 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3894 if (err)
3895 return err;
b23aa676 3896
074ac8df 3897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3899 return -EOPNOTSUPP;
b23aa676 3900
79c97e97 3901 wiphy = &rdev->wiphy;
b23aa676 3902
b23aa676
SO		 3903 if (info->attrs[NL80211_ATTR_MAC])
3904 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3905 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3906 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3907
3908 if (info->attrs[NL80211_ATTR_IE]) {
3909 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3910 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3911 }
3912
3913 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3914 connect.channel =
3915 ieee80211_get_channel(wiphy,
3916 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3917 if (!connect.channel ||
4c476991
JB		 3918 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3919 return -EINVAL;
b23aa676
SO		 3920 }
3921
fffd0934
JB		 3922 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3923 connkeys = nl80211_parse_connkeys(rdev,
3924 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3925 if (IS_ERR(connkeys))
3926 return PTR_ERR(connkeys);
fffd0934
JB		 3927 }
3928
3929 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 3930 if (err)
3931 kfree(connkeys);
b23aa676
SO		 3932 return err;
3933}
3934
3935static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3936{
4c476991
JB		 3937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3938 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3939 u16 reason;
3940
3941 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3942 reason = WLAN_REASON_DEAUTH_LEAVING;
3943 else
3944 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3945
3946 if (reason == 0)
3947 return -EINVAL;
3948
074ac8df 3949 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3950 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3951 return -EOPNOTSUPP;
b23aa676 3952
4c476991 3953 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 3954}
3955
463d0183
JB		 3956static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
3957{
4c476991 3958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 3959 struct net *net;
3960 int err;
3961 u32 pid;
3962
3963 if (!info->attrs[NL80211_ATTR_PID])
3964 return -EINVAL;
3965
3966 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
3967
463d0183 3968 net = get_net_ns_by_pid(pid);
4c476991
JB		 3969 if (IS_ERR(net))
3970 return PTR_ERR(net);
463d0183
JB		 3971
3972 err = 0;
3973
3974 /* check if anything to do */
4c476991
JB		 3975 if (!net_eq(wiphy_net(&rdev->wiphy), net))
3976 err = cfg80211_switch_netns(rdev, net);
463d0183 3977
463d0183 3978 put_net(net);
463d0183
JB		 3979 return err;
3980}
3981
67fbb16b
SO		 3982static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
3983{
4c476991 3984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 3985 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
3986 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 3987 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 3988 struct cfg80211_pmksa pmksa;
3989
3990 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
3991
3992 if (!info->attrs[NL80211_ATTR_MAC])
3993 return -EINVAL;
3994
3995 if (!info->attrs[NL80211_ATTR_PMKID])
3996 return -EINVAL;
3997
67fbb16b
SO		 3998 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
3999 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4000
074ac8df 4001 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4002 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4003 return -EOPNOTSUPP;
67fbb16b
SO		 4004
4005 switch (info->genlhdr->cmd) {
4006 case NL80211_CMD_SET_PMKSA:
4007 rdev_ops = rdev->ops->set_pmksa;
4008 break;
4009 case NL80211_CMD_DEL_PMKSA:
4010 rdev_ops = rdev->ops->del_pmksa;
4011 break;
4012 default:
4013 WARN_ON(1);
4014 break;
4015 }
4016
4c476991
JB		 4017 if (!rdev_ops)
4018 return -EOPNOTSUPP;
67fbb16b 4019
4c476991 4020 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4021}
4022
4023static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4024{
4c476991
JB		 4025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4026 struct net_device *dev = info->user_ptr[1];
67fbb16b 4027
074ac8df 4028 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4029 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4030 return -EOPNOTSUPP;
67fbb16b 4031
4c476991
JB		 4032 if (!rdev->ops->flush_pmksa)
4033 return -EOPNOTSUPP;
67fbb16b 4034
4c476991 4035 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4036}
4037
9588bbd5
JM		 4038static int nl80211_remain_on_channel(struct sk_buff *skb,
4039 struct genl_info *info)
4040{
4c476991
JB		 4041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4042 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4043 struct ieee80211_channel *chan;
4044 struct sk_buff *msg;
4045 void *hdr;
4046 u64 cookie;
4047 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4048 u32 freq, duration;
4049 int err;
4050
4051 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4052 !info->attrs[NL80211_ATTR_DURATION])
4053 return -EINVAL;
4054
4055 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4056
4057 /*
4058 * We should be on that channel for at least one jiffie,
4059 * and more than 5 seconds seems excessive.
4060 */
4061 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4062 return -EINVAL;
4063
4c476991
JB		 4064 if (!rdev->ops->remain_on_channel)
4065 return -EOPNOTSUPP;
9588bbd5 4066
9588bbd5
JM		 4067 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4068 channel_type = nla_get_u32(
4069 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4070 if (channel_type != NL80211_CHAN_NO_HT &&
4071 channel_type != NL80211_CHAN_HT20 &&
4072 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4073 channel_type != NL80211_CHAN_HT40MINUS)
4074 return -EINVAL;
9588bbd5
JM		 4075 }
4076
4077 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4078 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4079 if (chan == NULL)
4080 return -EINVAL;
9588bbd5
JM		 4081
4082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4083 if (!msg)
4084 return -ENOMEM;
9588bbd5
JM		 4085
4086 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4087 NL80211_CMD_REMAIN_ON_CHANNEL);
4088
4089 if (IS_ERR(hdr)) {
4090 err = PTR_ERR(hdr);
4091 goto free_msg;
4092 }
4093
4094 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4095 channel_type, duration, &cookie);
4096
4097 if (err)
4098 goto free_msg;
4099
4100 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4101
4102 genlmsg_end(msg, hdr);
4c476991
JB		 4103
4104 return genlmsg_reply(msg, info);
9588bbd5
JM		 4105
4106 nla_put_failure:
4107 err = -ENOBUFS;
4108 free_msg:
4109 nlmsg_free(msg);
9588bbd5
JM		 4110 return err;
4111}
4112
4113static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4114 struct genl_info *info)
4115{
4c476991
JB		 4116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4117 struct net_device *dev = info->user_ptr[1];
9588bbd5 4118 u64 cookie;
9588bbd5
JM		 4119
4120 if (!info->attrs[NL80211_ATTR_COOKIE])
4121 return -EINVAL;
4122
4c476991
JB		 4123 if (!rdev->ops->cancel_remain_on_channel)
4124 return -EOPNOTSUPP;
9588bbd5 4125
9588bbd5
JM		 4126 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4127
4c476991 4128 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4129}
4130
13ae75b1
JM		 4131static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4132 u8 *rates, u8 rates_len)
4133{
4134 u8 i;
4135 u32 mask = 0;
4136
4137 for (i = 0; i < rates_len; i++) {
4138 int rate = (rates[i] & 0x7f) * 5;
4139 int ridx;
4140 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4141 struct ieee80211_rate *srate =
4142 &sband->bitrates[ridx];
4143 if (rate == srate->bitrate) {
4144 mask |= 1 << ridx;
4145 break;
4146 }
4147 }
4148 if (ridx == sband->n_bitrates)
4149 return 0; /* rate not found */
4150 }
4151
4152 return mask;
4153}
4154
b54452b0 4155static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4156 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4157 .len = NL80211_MAX_SUPP_RATES },
4158};
4159
4160static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4161 struct genl_info *info)
4162{
4163 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4165 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4166 int rem, i;
4167 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4168 struct nlattr *tx_rates;
4169 struct ieee80211_supported_band *sband;
4170
4171 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4172 return -EINVAL;
4173
4c476991
JB		 4174 if (!rdev->ops->set_bitrate_mask)
4175 return -EOPNOTSUPP;
13ae75b1
JM		 4176
4177 memset(&mask, 0, sizeof(mask));
4178 /* Default to all rates enabled */
4179 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4180 sband = rdev->wiphy.bands[i];
4181 mask.control[i].legacy =
4182 sband ? (1 << sband->n_bitrates) - 1 : 0;
4183 }
4184
4185 /*
4186 * The nested attribute uses enum nl80211_band as the index. This maps
4187 * directly to the enum ieee80211_band values used in cfg80211.
4188 */
4189 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4190 {
4191 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4192 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4193 return -EINVAL;
13ae75b1 4194 sband = rdev->wiphy.bands[band];
4c476991
JB		 4195 if (sband == NULL)
4196 return -EINVAL;
13ae75b1
JM		 4197 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4198 nla_len(tx_rates), nl80211_txattr_policy);
4199 if (tb[NL80211_TXRATE_LEGACY]) {
4200 mask.control[band].legacy = rateset_to_mask(
4201 sband,
4202 nla_data(tb[NL80211_TXRATE_LEGACY]),
4203 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4204 if (mask.control[band].legacy == 0)
4205 return -EINVAL;
13ae75b1
JM		 4206 }
4207 }
4208
4c476991 4209 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4210}
4211
2e161f78 4212static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4213{
4c476991
JB		 4214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4215 struct net_device *dev = info->user_ptr[1];
2e161f78 4216 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4217
4218 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4219 return -EINVAL;
4220
2e161f78
JB		 4221 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4222 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4223
9d38d85d 4224 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4225 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4227 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4228 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4229 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4230 return -EOPNOTSUPP;
026331c4
JM		 4231
4232 /* not much point in registering if we can't reply */
4c476991
JB		 4233 if (!rdev->ops->mgmt_tx)
4234 return -EOPNOTSUPP;
026331c4 4235
4c476991 4236 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4237 frame_type,
026331c4
JM		 4238 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4239 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4240}
4241
2e161f78 4242static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4243{
4c476991
JB		 4244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4245 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4246 struct ieee80211_channel *chan;
4247 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4248 bool channel_type_valid = false;
026331c4
JM		 4249 u32 freq;
4250 int err;
4251 void *hdr;
4252 u64 cookie;
4253 struct sk_buff *msg;
f7ca38df
JB		 4254 unsigned int wait = 0;
4255 bool offchan;
026331c4
JM		 4256
4257 if (!info->attrs[NL80211_ATTR_FRAME] ||
4258 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4259 return -EINVAL;
4260
4c476991
JB		 4261 if (!rdev->ops->mgmt_tx)
4262 return -EOPNOTSUPP;
026331c4 4263
9d38d85d 4264 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4266 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4267 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4270 return -EOPNOTSUPP;
026331c4 4271
f7ca38df
JB		 4272 if (info->attrs[NL80211_ATTR_DURATION]) {
4273 if (!rdev->ops->mgmt_tx_cancel_wait)
4274 return -EINVAL;
4275 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4276 }
4277
026331c4
JM		 4278 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4279 channel_type = nla_get_u32(
4280 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4281 if (channel_type != NL80211_CHAN_NO_HT &&
4282 channel_type != NL80211_CHAN_HT20 &&
4283 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4284 channel_type != NL80211_CHAN_HT40MINUS)
4285 return -EINVAL;
252aa631 4286 channel_type_valid = true;
026331c4
JM		 4287 }
4288
f7ca38df
JB		 4289 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4290
026331c4
JM		 4291 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4292 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4293 if (chan == NULL)
4294 return -EINVAL;
026331c4
JM		 4295
4296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4297 if (!msg)
4298 return -ENOMEM;
026331c4
JM		 4299
4300 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4301 NL80211_CMD_FRAME);
026331c4
JM		 4302
4303 if (IS_ERR(hdr)) {
4304 err = PTR_ERR(hdr);
4305 goto free_msg;
4306 }
f7ca38df
JB		 4307 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4308 channel_type_valid, wait,
2e161f78
JB		 4309 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4310 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4311 &cookie);
026331c4
JM		 4312 if (err)
4313 goto free_msg;
4314
4315 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4316
4317 genlmsg_end(msg, hdr);
4c476991 4318 return genlmsg_reply(msg, info);
026331c4
JM		 4319
4320 nla_put_failure:
4321 err = -ENOBUFS;
4322 free_msg:
4323 nlmsg_free(msg);
026331c4
JM		 4324 return err;
4325}
4326
f7ca38df
JB		 4327static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4328{
4329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4330 struct net_device *dev = info->user_ptr[1];
4331 u64 cookie;
4332
4333 if (!info->attrs[NL80211_ATTR_COOKIE])
4334 return -EINVAL;
4335
4336 if (!rdev->ops->mgmt_tx_cancel_wait)
4337 return -EOPNOTSUPP;
4338
4339 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4340 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4341 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4342 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4345 return -EOPNOTSUPP;
4346
4347 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4348
4349 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4350}
4351
ffb9eb3d
KV		 4352static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4353{
4c476991 4354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4355 struct wireless_dev *wdev;
4c476991 4356 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4357 u8 ps_state;
4358 bool state;
4359 int err;
4360
4c476991
JB		 4361 if (!info->attrs[NL80211_ATTR_PS_STATE])
4362 return -EINVAL;
ffb9eb3d
KV		 4363
4364 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4365
4c476991
JB		 4366 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4367 return -EINVAL;
ffb9eb3d
KV		 4368
4369 wdev = dev->ieee80211_ptr;
4370
4c476991
JB		 4371 if (!rdev->ops->set_power_mgmt)
4372 return -EOPNOTSUPP;
ffb9eb3d
KV		 4373
4374 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4375
4376 if (state == wdev->ps)
4c476991 4377 return 0;
ffb9eb3d 4378
4c476991
JB		 4379 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4380 wdev->ps_timeout);
4381 if (!err)
4382 wdev->ps = state;
ffb9eb3d
KV		 4383 return err;
4384}
4385
4386static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4387{
4c476991 4388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4389 enum nl80211_ps_state ps_state;
4390 struct wireless_dev *wdev;
4c476991 4391 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4392 struct sk_buff *msg;
4393 void *hdr;
4394 int err;
4395
ffb9eb3d
KV		 4396 wdev = dev->ieee80211_ptr;
4397
4c476991
JB		 4398 if (!rdev->ops->set_power_mgmt)
4399 return -EOPNOTSUPP;
ffb9eb3d
KV		 4400
4401 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4402 if (!msg)
4403 return -ENOMEM;
ffb9eb3d
KV		 4404
4405 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4406 NL80211_CMD_GET_POWER_SAVE);
4407 if (!hdr) {
4c476991 4408 err = -ENOBUFS;
ffb9eb3d
KV		 4409 goto free_msg;
4410 }
4411
4412 if (wdev->ps)
4413 ps_state = NL80211_PS_ENABLED;
4414 else
4415 ps_state = NL80211_PS_DISABLED;
4416
4417 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4418
4419 genlmsg_end(msg, hdr);
4c476991 4420 return genlmsg_reply(msg, info);
ffb9eb3d 4421
4c476991 4422 nla_put_failure:
ffb9eb3d 4423 err = -ENOBUFS;
4c476991 4424 free_msg:
ffb9eb3d 4425 nlmsg_free(msg);
ffb9eb3d
KV		 4426 return err;
4427}
4428
d6dc1a38
JO		 4429static struct nla_policy
4430nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4431 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4432 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4433 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4434};
4435
4436static int nl80211_set_cqm_rssi(struct genl_info *info,
4437 s32 threshold, u32 hysteresis)
4438{
4c476991 4439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4440 struct wireless_dev *wdev;
4c476991 4441 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4442
4443 if (threshold > 0)
4444 return -EINVAL;
4445
d6dc1a38
JO		 4446 wdev = dev->ieee80211_ptr;
4447
4c476991
JB		 4448 if (!rdev->ops->set_cqm_rssi_config)
4449 return -EOPNOTSUPP;
d6dc1a38 4450
074ac8df 4451 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4452 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4453 return -EOPNOTSUPP;
d6dc1a38 4454
4c476991
JB		 4455 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4456 threshold, hysteresis);
d6dc1a38
JO		 4457}
4458
4459static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4460{
4461 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4462 struct nlattr *cqm;
4463 int err;
4464
4465 cqm = info->attrs[NL80211_ATTR_CQM];
4466 if (!cqm) {
4467 err = -EINVAL;
4468 goto out;
4469 }
4470
4471 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4472 nl80211_attr_cqm_policy);
4473 if (err)
4474 goto out;
4475
4476 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4477 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4478 s32 threshold;
4479 u32 hysteresis;
4480 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4481 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4482 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4483 } else
4484 err = -EINVAL;
4485
4486out:
4487 return err;
4488}
4489
4c476991
JB		 4490#define NL80211_FLAG_NEED_WIPHY 0x01
4491#define NL80211_FLAG_NEED_NETDEV 0x02
4492#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4493#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4494#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4495 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4496
4497static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4498 struct genl_info *info)
4499{
4500 struct cfg80211_registered_device *rdev;
4501 struct net_device *dev;
4502 int err;
4503 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4504
4505 if (rtnl)
4506 rtnl_lock();
4507
4508 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4509 rdev = cfg80211_get_dev_from_info(info);
4510 if (IS_ERR(rdev)) {
4511 if (rtnl)
4512 rtnl_unlock();
4513 return PTR_ERR(rdev);
4514 }
4515 info->user_ptr[0] = rdev;
4516 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4517 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4518 if (err) {
4519 if (rtnl)
4520 rtnl_unlock();
4521 return err;
4522 }
41265714
JB		 4523 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4524 !netif_running(dev)) {
d537f5fd
JB		 4525 cfg80211_unlock_rdev(rdev);
4526 dev_put(dev);
41265714
JB		 4527 if (rtnl)
4528 rtnl_unlock();
4529 return -ENETDOWN;
4530 }
4c476991
JB		 4531 info->user_ptr[0] = rdev;
4532 info->user_ptr[1] = dev;
4533 }
4534
4535 return 0;
4536}
4537
4538static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4539 struct genl_info *info)
4540{
4541 if (info->user_ptr[0])
4542 cfg80211_unlock_rdev(info->user_ptr[0]);
4543 if (info->user_ptr[1])
4544 dev_put(info->user_ptr[1]);
4545 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4546 rtnl_unlock();
4547}
4548
55682965
JB		 4549static struct genl_ops nl80211_ops[] = {
4550 {
4551 .cmd = NL80211_CMD_GET_WIPHY,
4552 .doit = nl80211_get_wiphy,
4553 .dumpit = nl80211_dump_wiphy,
4554 .policy = nl80211_policy,
4555 /* can be retrieved by unprivileged users */
4c476991 4556 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4557 },
4558 {
4559 .cmd = NL80211_CMD_SET_WIPHY,
4560 .doit = nl80211_set_wiphy,
4561 .policy = nl80211_policy,
4562 .flags = GENL_ADMIN_PERM,
4c476991 4563 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4564 },
4565 {
4566 .cmd = NL80211_CMD_GET_INTERFACE,
4567 .doit = nl80211_get_interface,
4568 .dumpit = nl80211_dump_interface,
4569 .policy = nl80211_policy,
4570 /* can be retrieved by unprivileged users */
4c476991 4571 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4572 },
4573 {
4574 .cmd = NL80211_CMD_SET_INTERFACE,
4575 .doit = nl80211_set_interface,
4576 .policy = nl80211_policy,
4577 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4578 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4579 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4580 },
4581 {
4582 .cmd = NL80211_CMD_NEW_INTERFACE,
4583 .doit = nl80211_new_interface,
4584 .policy = nl80211_policy,
4585 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4586 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4587 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4588 },
4589 {
4590 .cmd = NL80211_CMD_DEL_INTERFACE,
4591 .doit = nl80211_del_interface,
4592 .policy = nl80211_policy,
41ade00f 4593 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4594 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4595 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4596 },
4597 {
4598 .cmd = NL80211_CMD_GET_KEY,
4599 .doit = nl80211_get_key,
4600 .policy = nl80211_policy,
4601 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4602 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4603 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4604 },
4605 {
4606 .cmd = NL80211_CMD_SET_KEY,
4607 .doit = nl80211_set_key,
4608 .policy = nl80211_policy,
4609 .flags = GENL_ADMIN_PERM,
41265714 4610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4611 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4612 },
4613 {
4614 .cmd = NL80211_CMD_NEW_KEY,
4615 .doit = nl80211_new_key,
4616 .policy = nl80211_policy,
4617 .flags = GENL_ADMIN_PERM,
41265714 4618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4619 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4620 },
4621 {
4622 .cmd = NL80211_CMD_DEL_KEY,
4623 .doit = nl80211_del_key,
4624 .policy = nl80211_policy,
55682965 4625 .flags = GENL_ADMIN_PERM,
41265714 4626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4627 NL80211_FLAG_NEED_RTNL,
55682965 4628 },
ed1b6cc7
JB		 4629 {
4630 .cmd = NL80211_CMD_SET_BEACON,
4631 .policy = nl80211_policy,
4632 .flags = GENL_ADMIN_PERM,
4633 .doit = nl80211_addset_beacon,
4c476991
JB		 4634 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4635 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4636 },
4637 {
4638 .cmd = NL80211_CMD_NEW_BEACON,
4639 .policy = nl80211_policy,
4640 .flags = GENL_ADMIN_PERM,
4641 .doit = nl80211_addset_beacon,
4c476991
JB		 4642 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4643 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4644 },
4645 {
4646 .cmd = NL80211_CMD_DEL_BEACON,
4647 .policy = nl80211_policy,
4648 .flags = GENL_ADMIN_PERM,
4649 .doit = nl80211_del_beacon,
4c476991
JB		 4650 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4651 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4652 },
5727ef1b
JB		 4653 {
4654 .cmd = NL80211_CMD_GET_STATION,
4655 .doit = nl80211_get_station,
2ec600d6 4656 .dumpit = nl80211_dump_station,
5727ef1b 4657 .policy = nl80211_policy,
4c476991
JB		 4658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4659 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4660 },
4661 {
4662 .cmd = NL80211_CMD_SET_STATION,
4663 .doit = nl80211_set_station,
4664 .policy = nl80211_policy,
4665 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4667 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4668 },
4669 {
4670 .cmd = NL80211_CMD_NEW_STATION,
4671 .doit = nl80211_new_station,
4672 .policy = nl80211_policy,
4673 .flags = GENL_ADMIN_PERM,
41265714 4674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4675 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4676 },
4677 {
4678 .cmd = NL80211_CMD_DEL_STATION,
4679 .doit = nl80211_del_station,
4680 .policy = nl80211_policy,
2ec600d6 4681 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4683 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4684 },
4685 {
4686 .cmd = NL80211_CMD_GET_MPATH,
4687 .doit = nl80211_get_mpath,
4688 .dumpit = nl80211_dump_mpath,
4689 .policy = nl80211_policy,
4690 .flags = GENL_ADMIN_PERM,
41265714 4691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4692 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4693 },
4694 {
4695 .cmd = NL80211_CMD_SET_MPATH,
4696 .doit = nl80211_set_mpath,
4697 .policy = nl80211_policy,
4698 .flags = GENL_ADMIN_PERM,
41265714 4699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4700 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4701 },
4702 {
4703 .cmd = NL80211_CMD_NEW_MPATH,
4704 .doit = nl80211_new_mpath,
4705 .policy = nl80211_policy,
4706 .flags = GENL_ADMIN_PERM,
41265714 4707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4708 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4709 },
4710 {
4711 .cmd = NL80211_CMD_DEL_MPATH,
4712 .doit = nl80211_del_mpath,
4713 .policy = nl80211_policy,
9f1ba906 4714 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4715 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4716 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4717 },
4718 {
4719 .cmd = NL80211_CMD_SET_BSS,
4720 .doit = nl80211_set_bss,
4721 .policy = nl80211_policy,
b2e1b302 4722 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4723 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4724 NL80211_FLAG_NEED_RTNL,
b2e1b302 4725 },
f130347c
LR		 4726 {
4727 .cmd = NL80211_CMD_GET_REG,
4728 .doit = nl80211_get_reg,
4729 .policy = nl80211_policy,
4730 /* can be retrieved by unprivileged users */
4731 },
b2e1b302
LR		 4732 {
4733 .cmd = NL80211_CMD_SET_REG,
4734 .doit = nl80211_set_reg,
4735 .policy = nl80211_policy,
4736 .flags = GENL_ADMIN_PERM,
4737 },
4738 {
4739 .cmd = NL80211_CMD_REQ_SET_REG,
4740 .doit = nl80211_req_set_reg,
4741 .policy = nl80211_policy,
93da9cc1 4742 .flags = GENL_ADMIN_PERM,
4743 },
4744 {
4745 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4746 .doit = nl80211_get_mesh_params,
4747 .policy = nl80211_policy,
4748 /* can be retrieved by unprivileged users */
4c476991
JB		 4749 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4750 NL80211_FLAG_NEED_RTNL,
93da9cc1 4751 },
4752 {
4753 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4754 .doit = nl80211_set_mesh_params,
4755 .policy = nl80211_policy,
9aed3cc1 4756 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4757 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4758 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4759 },
2a519311
JB		 4760 {
4761 .cmd = NL80211_CMD_TRIGGER_SCAN,
4762 .doit = nl80211_trigger_scan,
4763 .policy = nl80211_policy,
4764 .flags = GENL_ADMIN_PERM,
41265714 4765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4766 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4767 },
4768 {
4769 .cmd = NL80211_CMD_GET_SCAN,
4770 .policy = nl80211_policy,
4771 .dumpit = nl80211_dump_scan,
4772 },
636a5d36
JM		 4773 {
4774 .cmd = NL80211_CMD_AUTHENTICATE,
4775 .doit = nl80211_authenticate,
4776 .policy = nl80211_policy,
4777 .flags = GENL_ADMIN_PERM,
41265714 4778 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4779 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4780 },
4781 {
4782 .cmd = NL80211_CMD_ASSOCIATE,
4783 .doit = nl80211_associate,
4784 .policy = nl80211_policy,
4785 .flags = GENL_ADMIN_PERM,
41265714 4786 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4787 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4788 },
4789 {
4790 .cmd = NL80211_CMD_DEAUTHENTICATE,
4791 .doit = nl80211_deauthenticate,
4792 .policy = nl80211_policy,
4793 .flags = GENL_ADMIN_PERM,
41265714 4794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4795 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4796 },
4797 {
4798 .cmd = NL80211_CMD_DISASSOCIATE,
4799 .doit = nl80211_disassociate,
4800 .policy = nl80211_policy,
4801 .flags = GENL_ADMIN_PERM,
41265714 4802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4803 NL80211_FLAG_NEED_RTNL,
636a5d36 4804 },
04a773ad
JB		 4805 {
4806 .cmd = NL80211_CMD_JOIN_IBSS,
4807 .doit = nl80211_join_ibss,
4808 .policy = nl80211_policy,
4809 .flags = GENL_ADMIN_PERM,
41265714 4810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4811 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4812 },
4813 {
4814 .cmd = NL80211_CMD_LEAVE_IBSS,
4815 .doit = nl80211_leave_ibss,
4816 .policy = nl80211_policy,
4817 .flags = GENL_ADMIN_PERM,
41265714 4818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4819 NL80211_FLAG_NEED_RTNL,
04a773ad 4820 },
aff89a9b
JB		 4821#ifdef CONFIG_NL80211_TESTMODE
4822 {
4823 .cmd = NL80211_CMD_TESTMODE,
4824 .doit = nl80211_testmode_do,
4825 .policy = nl80211_policy,
4826 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4827 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4828 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4829 },
4830#endif
b23aa676
SO		 4831 {
4832 .cmd = NL80211_CMD_CONNECT,
4833 .doit = nl80211_connect,
4834 .policy = nl80211_policy,
4835 .flags = GENL_ADMIN_PERM,
41265714 4836 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4837 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4838 },
4839 {
4840 .cmd = NL80211_CMD_DISCONNECT,
4841 .doit = nl80211_disconnect,
4842 .policy = nl80211_policy,
4843 .flags = GENL_ADMIN_PERM,
41265714 4844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4845 NL80211_FLAG_NEED_RTNL,
b23aa676 4846 },
463d0183
JB		 4847 {
4848 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4849 .doit = nl80211_wiphy_netns,
4850 .policy = nl80211_policy,
4851 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4852 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4853 NL80211_FLAG_NEED_RTNL,
463d0183 4854 },
61fa713c
HS		 4855 {
4856 .cmd = NL80211_CMD_GET_SURVEY,
4857 .policy = nl80211_policy,
4858 .dumpit = nl80211_dump_survey,
4859 },
67fbb16b
SO		 4860 {
4861 .cmd = NL80211_CMD_SET_PMKSA,
4862 .doit = nl80211_setdel_pmksa,
4863 .policy = nl80211_policy,
4864 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4865 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4866 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4867 },
4868 {
4869 .cmd = NL80211_CMD_DEL_PMKSA,
4870 .doit = nl80211_setdel_pmksa,
4871 .policy = nl80211_policy,
4872 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4874 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4875 },
4876 {
4877 .cmd = NL80211_CMD_FLUSH_PMKSA,
4878 .doit = nl80211_flush_pmksa,
4879 .policy = nl80211_policy,
4880 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4882 NL80211_FLAG_NEED_RTNL,
67fbb16b 4883 },
9588bbd5
JM		 4884 {
4885 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4886 .doit = nl80211_remain_on_channel,
4887 .policy = nl80211_policy,
4888 .flags = GENL_ADMIN_PERM,
41265714 4889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4890 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4891 },
4892 {
4893 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4894 .doit = nl80211_cancel_remain_on_channel,
4895 .policy = nl80211_policy,
4896 .flags = GENL_ADMIN_PERM,
41265714 4897 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4898 NL80211_FLAG_NEED_RTNL,
9588bbd5 4899 },
13ae75b1
JM		 4900 {
4901 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4902 .doit = nl80211_set_tx_bitrate_mask,
4903 .policy = nl80211_policy,
4904 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4906 NL80211_FLAG_NEED_RTNL,
13ae75b1 4907 },
026331c4 4908 {
2e161f78
JB		 4909 .cmd = NL80211_CMD_REGISTER_FRAME,
4910 .doit = nl80211_register_mgmt,
026331c4
JM		 4911 .policy = nl80211_policy,
4912 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4913 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4914 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 4915 },
4916 {
2e161f78
JB		 4917 .cmd = NL80211_CMD_FRAME,
4918 .doit = nl80211_tx_mgmt,
026331c4 4919 .policy = nl80211_policy,
f7ca38df
JB		 4920 .flags = GENL_ADMIN_PERM,
4921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4922 NL80211_FLAG_NEED_RTNL,
4923 },
4924 {
4925 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
4926 .doit = nl80211_tx_mgmt_cancel_wait,
4927 .policy = nl80211_policy,
026331c4 4928 .flags = GENL_ADMIN_PERM,
41265714 4929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4930 NL80211_FLAG_NEED_RTNL,
026331c4 4931 },
ffb9eb3d
KV		 4932 {
4933 .cmd = NL80211_CMD_SET_POWER_SAVE,
4934 .doit = nl80211_set_power_save,
4935 .policy = nl80211_policy,
4936 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4937 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4938 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 4939 },
4940 {
4941 .cmd = NL80211_CMD_GET_POWER_SAVE,
4942 .doit = nl80211_get_power_save,
4943 .policy = nl80211_policy,
4944 /* can be retrieved by unprivileged users */
4c476991
JB		 4945 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4946 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 4947 },
d6dc1a38
JO		 4948 {
4949 .cmd = NL80211_CMD_SET_CQM,
4950 .doit = nl80211_set_cqm,
4951 .policy = nl80211_policy,
4952 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4953 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4954 NL80211_FLAG_NEED_RTNL,
d6dc1a38 4955 },
f444de05
JB		 4956 {
4957 .cmd = NL80211_CMD_SET_CHANNEL,
4958 .doit = nl80211_set_channel,
4959 .policy = nl80211_policy,
4960 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4961 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4962 NL80211_FLAG_NEED_RTNL,
f444de05 4963 },
e8347eba
BJ		 4964 {
4965 .cmd = NL80211_CMD_SET_WDS_PEER,
4966 .doit = nl80211_set_wds_peer,
4967 .policy = nl80211_policy,
4968 .flags = GENL_ADMIN_PERM,
43b19952
JB		 4969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4970 NL80211_FLAG_NEED_RTNL,
e8347eba 4971 },
55682965 4972};
9588bbd5 4973
6039f6d2
JM		 4974static struct genl_multicast_group nl80211_mlme_mcgrp = {
4975 .name = "mlme",
4976};
55682965
JB		 4977
4978/* multicast groups */
4979static struct genl_multicast_group nl80211_config_mcgrp = {
4980 .name = "config",
4981};
2a519311
JB		 4982static struct genl_multicast_group nl80211_scan_mcgrp = {
4983 .name = "scan",
4984};
73d54c9e
LR		 4985static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4986 .name = "regulatory",
4987};
55682965
JB		 4988
4989/* notification functions */
4990
4991void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4992{
4993 struct sk_buff *msg;
4994
fd2120ca 4995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4996 if (!msg)
4997 return;
4998
4999 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5000 nlmsg_free(msg);
5001 return;
5002 }
5003
463d0183
JB		 5004 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5005 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5006}
5007
362a415d
JB		 5008static int nl80211_add_scan_req(struct sk_buff *msg,
5009 struct cfg80211_registered_device *rdev)
5010{
5011 struct cfg80211_scan_request *req = rdev->scan_req;
5012 struct nlattr *nest;
5013 int i;
5014
667503dd
JB		 5015 ASSERT_RDEV_LOCK(rdev);
5016
362a415d
JB		 5017 if (WARN_ON(!req))
5018 return 0;
5019
5020 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5021 if (!nest)
5022 goto nla_put_failure;
5023 for (i = 0; i < req->n_ssids; i++)
5024 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5025 nla_nest_end(msg, nest);
5026
5027 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5028 if (!nest)
5029 goto nla_put_failure;
5030 for (i = 0; i < req->n_channels; i++)
5031 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5032 nla_nest_end(msg, nest);
5033
5034 if (req->ie)
5035 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5036
5037 return 0;
5038 nla_put_failure:
5039 return -ENOBUFS;
5040}
5041
a538e2d5
JB		 5042static int nl80211_send_scan_msg(struct sk_buff *msg,
5043 struct cfg80211_registered_device *rdev,
5044 struct net_device *netdev,
5045 u32 pid, u32 seq, int flags,
5046 u32 cmd)
2a519311
JB		 5047{
5048 void *hdr;
5049
5050 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5051 if (!hdr)
5052 return -1;
5053
b5850a7a 5054 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5055 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5056
362a415d
JB		 5057 /* ignore errors and send incomplete event anyway */
5058 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5059
5060 return genlmsg_end(msg, hdr);
5061
5062 nla_put_failure:
5063 genlmsg_cancel(msg, hdr);
5064 return -EMSGSIZE;
5065}
5066
a538e2d5
JB		 5067void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5068 struct net_device *netdev)
5069{
5070 struct sk_buff *msg;
5071
5072 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5073 if (!msg)
5074 return;
5075
5076 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5077 NL80211_CMD_TRIGGER_SCAN) < 0) {
5078 nlmsg_free(msg);
5079 return;
5080 }
5081
463d0183
JB		 5082 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5083 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5084}
5085
2a519311
JB		 5086void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5087 struct net_device *netdev)
5088{
5089 struct sk_buff *msg;
5090
fd2120ca 5091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5092 if (!msg)
5093 return;
5094
a538e2d5
JB		 5095 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5096 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5097 nlmsg_free(msg);
5098 return;
5099 }
5100
463d0183
JB		 5101 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5102 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5103}
5104
5105void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5106 struct net_device *netdev)
5107{
5108 struct sk_buff *msg;
5109
fd2120ca 5110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5111 if (!msg)
5112 return;
5113
a538e2d5
JB		 5114 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5115 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5116 nlmsg_free(msg);
5117 return;
5118 }
5119
463d0183
JB		 5120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5121 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5122}
5123
73d54c9e
LR		 5124/*
5125 * This can happen on global regulatory changes or device specific settings
5126 * based on custom world regulatory domains.
5127 */
5128void nl80211_send_reg_change_event(struct regulatory_request *request)
5129{
5130 struct sk_buff *msg;
5131 void *hdr;
5132
fd2120ca 5133 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5134 if (!msg)
5135 return;
5136
5137 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5138 if (!hdr) {
5139 nlmsg_free(msg);
5140 return;
5141 }
5142
5143 /* Userspace can always count this one always being set */
5144 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5145
5146 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5147 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5148 NL80211_REGDOM_TYPE_WORLD);
5149 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5150 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5151 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5152 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5153 request->intersect)
5154 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5155 NL80211_REGDOM_TYPE_INTERSECTION);
5156 else {
5157 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5158 NL80211_REGDOM_TYPE_COUNTRY);
5159 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5160 }
5161
5162 if (wiphy_idx_valid(request->wiphy_idx))
5163 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5164
5165 if (genlmsg_end(msg, hdr) < 0) {
5166 nlmsg_free(msg);
5167 return;
5168 }
5169
bc43b28c 5170 rcu_read_lock();
463d0183 5171 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5172 GFP_ATOMIC);
5173 rcu_read_unlock();
73d54c9e
LR		 5174
5175 return;
5176
5177nla_put_failure:
5178 genlmsg_cancel(msg, hdr);
5179 nlmsg_free(msg);
5180}
5181
6039f6d2
JM		 5182static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5183 struct net_device *netdev,
5184 const u8 *buf, size_t len,
e6d6e342 5185 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5186{
5187 struct sk_buff *msg;
5188 void *hdr;
5189
e6d6e342 5190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5191 if (!msg)
5192 return;
5193
5194 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5195 if (!hdr) {
5196 nlmsg_free(msg);
5197 return;
5198 }
5199
5200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5202 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5203
5204 if (genlmsg_end(msg, hdr) < 0) {
5205 nlmsg_free(msg);
5206 return;
5207 }
5208
463d0183
JB		 5209 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5210 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5211 return;
5212
5213 nla_put_failure:
5214 genlmsg_cancel(msg, hdr);
5215 nlmsg_free(msg);
5216}
5217
5218void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5219 struct net_device *netdev, const u8 *buf,
5220 size_t len, gfp_t gfp)
6039f6d2
JM		 5221{
5222 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5223 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5224}
5225
5226void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5227 struct net_device *netdev, const u8 *buf,
e6d6e342 5228 size_t len, gfp_t gfp)
6039f6d2 5229{
e6d6e342
JB		 5230 nl80211_send_mlme_event(rdev, netdev, buf, len,
5231 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5232}
5233
53b46b84 5234void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5235 struct net_device *netdev, const u8 *buf,
5236 size_t len, gfp_t gfp)
6039f6d2
JM		 5237{
5238 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5239 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5240}
5241
53b46b84
JM		 5242void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5243 struct net_device *netdev, const u8 *buf,
e6d6e342 5244 size_t len, gfp_t gfp)
6039f6d2
JM		 5245{
5246 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5247 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5248}
5249
1b06bb40
LR		 5250static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5251 struct net_device *netdev, int cmd,
e6d6e342 5252 const u8 *addr, gfp_t gfp)
1965c853
JM		 5253{
5254 struct sk_buff *msg;
5255 void *hdr;
5256
e6d6e342 5257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5258 if (!msg)
5259 return;
5260
5261 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5262 if (!hdr) {
5263 nlmsg_free(msg);
5264 return;
5265 }
5266
5267 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5268 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5269 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5270 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5271
5272 if (genlmsg_end(msg, hdr) < 0) {
5273 nlmsg_free(msg);
5274 return;
5275 }
5276
463d0183
JB		 5277 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5278 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5279 return;
5280
5281 nla_put_failure:
5282 genlmsg_cancel(msg, hdr);
5283 nlmsg_free(msg);
5284}
5285
5286void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5287 struct net_device *netdev, const u8 *addr,
5288 gfp_t gfp)
1965c853
JM		 5289{
5290 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5291 addr, gfp);
1965c853
JM		 5292}
5293
5294void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5295 struct net_device *netdev, const u8 *addr,
5296 gfp_t gfp)
1965c853 5297{
e6d6e342
JB		 5298 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5299 addr, gfp);
1965c853
JM		 5300}
5301
b23aa676
SO		 5302void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5303 struct net_device *netdev, const u8 *bssid,
5304 const u8 *req_ie, size_t req_ie_len,
5305 const u8 *resp_ie, size_t resp_ie_len,
5306 u16 status, gfp_t gfp)
5307{
5308 struct sk_buff *msg;
5309 void *hdr;
5310
5311 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5312 if (!msg)
5313 return;
5314
5315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5316 if (!hdr) {
5317 nlmsg_free(msg);
5318 return;
5319 }
5320
5321 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5322 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5323 if (bssid)
5324 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5325 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5326 if (req_ie)
5327 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5328 if (resp_ie)
5329 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5330
5331 if (genlmsg_end(msg, hdr) < 0) {
5332 nlmsg_free(msg);
5333 return;
5334 }
5335
463d0183
JB		 5336 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5337 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5338 return;
5339
5340 nla_put_failure:
5341 genlmsg_cancel(msg, hdr);
5342 nlmsg_free(msg);
5343
5344}
5345
5346void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5347 struct net_device *netdev, const u8 *bssid,
5348 const u8 *req_ie, size_t req_ie_len,
5349 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5350{
5351 struct sk_buff *msg;
5352 void *hdr;
5353
5354 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5355 if (!msg)
5356 return;
5357
5358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5359 if (!hdr) {
5360 nlmsg_free(msg);
5361 return;
5362 }
5363
5364 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5366 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5367 if (req_ie)
5368 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5369 if (resp_ie)
5370 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5371
5372 if (genlmsg_end(msg, hdr) < 0) {
5373 nlmsg_free(msg);
5374 return;
5375 }
5376
463d0183
JB		 5377 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5378 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5379 return;
5380
5381 nla_put_failure:
5382 genlmsg_cancel(msg, hdr);
5383 nlmsg_free(msg);
5384
5385}
5386
5387void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5388 struct net_device *netdev, u16 reason,
667503dd 5389 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5390{
5391 struct sk_buff *msg;
5392 void *hdr;
5393
667503dd 5394 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5395 if (!msg)
5396 return;
5397
5398 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5399 if (!hdr) {
5400 nlmsg_free(msg);
5401 return;
5402 }
5403
5404 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5405 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5406 if (from_ap && reason)
5407 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5408 if (from_ap)
5409 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5410 if (ie)
5411 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5412
5413 if (genlmsg_end(msg, hdr) < 0) {
5414 nlmsg_free(msg);
5415 return;
5416 }
5417
463d0183
JB		 5418 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5419 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5420 return;
5421
5422 nla_put_failure:
5423 genlmsg_cancel(msg, hdr);
5424 nlmsg_free(msg);
5425
5426}
5427
04a773ad
JB		 5428void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5429 struct net_device *netdev, const u8 *bssid,
5430 gfp_t gfp)
5431{
5432 struct sk_buff *msg;
5433 void *hdr;
5434
fd2120ca 5435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5436 if (!msg)
5437 return;
5438
5439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5440 if (!hdr) {
5441 nlmsg_free(msg);
5442 return;
5443 }
5444
5445 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5447 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5448
5449 if (genlmsg_end(msg, hdr) < 0) {
5450 nlmsg_free(msg);
5451 return;
5452 }
5453
463d0183
JB		 5454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5455 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5456 return;
5457
5458 nla_put_failure:
5459 genlmsg_cancel(msg, hdr);
5460 nlmsg_free(msg);
5461}
5462
a3b8b056
JM		 5463void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5464 struct net_device *netdev, const u8 *addr,
5465 enum nl80211_key_type key_type, int key_id,
e6d6e342 5466 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5467{
5468 struct sk_buff *msg;
5469 void *hdr;
5470
e6d6e342 5471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5472 if (!msg)
5473 return;
5474
5475 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5476 if (!hdr) {
5477 nlmsg_free(msg);
5478 return;
5479 }
5480
5481 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5482 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5483 if (addr)
5484 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5485 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5486 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5487 if (tsc)
5488 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5489
5490 if (genlmsg_end(msg, hdr) < 0) {
5491 nlmsg_free(msg);
5492 return;
5493 }
5494
463d0183
JB		 5495 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5496 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5497 return;
5498
5499 nla_put_failure:
5500 genlmsg_cancel(msg, hdr);
5501 nlmsg_free(msg);
5502}
5503
6bad8766
LR		 5504void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5505 struct ieee80211_channel *channel_before,
5506 struct ieee80211_channel *channel_after)
5507{
5508 struct sk_buff *msg;
5509 void *hdr;
5510 struct nlattr *nl_freq;
5511
fd2120ca 5512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5513 if (!msg)
5514 return;
5515
5516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5517 if (!hdr) {
5518 nlmsg_free(msg);
5519 return;
5520 }
5521
5522 /*
5523 * Since we are applying the beacon hint to a wiphy we know its
5524 * wiphy_idx is valid
5525 */
5526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5527
5528 /* Before */
5529 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5530 if (!nl_freq)
5531 goto nla_put_failure;
5532 if (nl80211_msg_put_channel(msg, channel_before))
5533 goto nla_put_failure;
5534 nla_nest_end(msg, nl_freq);
5535
5536 /* After */
5537 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5538 if (!nl_freq)
5539 goto nla_put_failure;
5540 if (nl80211_msg_put_channel(msg, channel_after))
5541 goto nla_put_failure;
5542 nla_nest_end(msg, nl_freq);
5543
5544 if (genlmsg_end(msg, hdr) < 0) {
5545 nlmsg_free(msg);
5546 return;
5547 }
5548
463d0183
JB		 5549 rcu_read_lock();
5550 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5551 GFP_ATOMIC);
5552 rcu_read_unlock();
6bad8766
LR		 5553
5554 return;
5555
5556nla_put_failure:
5557 genlmsg_cancel(msg, hdr);
5558 nlmsg_free(msg);
5559}
5560
9588bbd5
JM		 5561static void nl80211_send_remain_on_chan_event(
5562 int cmd, struct cfg80211_registered_device *rdev,
5563 struct net_device *netdev, u64 cookie,
5564 struct ieee80211_channel *chan,
5565 enum nl80211_channel_type channel_type,
5566 unsigned int duration, gfp_t gfp)
5567{
5568 struct sk_buff *msg;
5569 void *hdr;
5570
5571 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5572 if (!msg)
5573 return;
5574
5575 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5576 if (!hdr) {
5577 nlmsg_free(msg);
5578 return;
5579 }
5580
5581 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5582 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5583 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5585 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5586
5587 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5588 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5589
5590 if (genlmsg_end(msg, hdr) < 0) {
5591 nlmsg_free(msg);
5592 return;
5593 }
5594
5595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5596 nl80211_mlme_mcgrp.id, gfp);
5597 return;
5598
5599 nla_put_failure:
5600 genlmsg_cancel(msg, hdr);
5601 nlmsg_free(msg);
5602}
5603
5604void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5605 struct net_device *netdev, u64 cookie,
5606 struct ieee80211_channel *chan,
5607 enum nl80211_channel_type channel_type,
5608 unsigned int duration, gfp_t gfp)
5609{
5610 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5611 rdev, netdev, cookie, chan,
5612 channel_type, duration, gfp);
5613}
5614
5615void nl80211_send_remain_on_channel_cancel(
5616 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5617 u64 cookie, struct ieee80211_channel *chan,
5618 enum nl80211_channel_type channel_type, gfp_t gfp)
5619{
5620 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5621 rdev, netdev, cookie, chan,
5622 channel_type, 0, gfp);
5623}
5624
98b62183
JB		 5625void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5626 struct net_device *dev, const u8 *mac_addr,
5627 struct station_info *sinfo, gfp_t gfp)
5628{
5629 struct sk_buff *msg;
5630
5631 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5632 if (!msg)
5633 return;
5634
5635 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5636 nlmsg_free(msg);
5637 return;
5638 }
5639
5640 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5641 nl80211_mlme_mcgrp.id, gfp);
5642}
5643
2e161f78
JB		 5644int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5645 struct net_device *netdev, u32 nlpid,
5646 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5647{
5648 struct sk_buff *msg;
5649 void *hdr;
5650 int err;
5651
5652 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5653 if (!msg)
5654 return -ENOMEM;
5655
2e161f78 5656 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5657 if (!hdr) {
5658 nlmsg_free(msg);
5659 return -ENOMEM;
5660 }
5661
5662 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5664 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5665 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5666
5667 err = genlmsg_end(msg, hdr);
5668 if (err < 0) {
5669 nlmsg_free(msg);
5670 return err;
5671 }
5672
5673 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5674 if (err < 0)
5675 return err;
5676 return 0;
5677
5678 nla_put_failure:
5679 genlmsg_cancel(msg, hdr);
5680 nlmsg_free(msg);
5681 return -ENOBUFS;
5682}
5683
2e161f78
JB		 5684void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5685 struct net_device *netdev, u64 cookie,
5686 const u8 *buf, size_t len, bool ack,
5687 gfp_t gfp)
026331c4
JM		 5688{
5689 struct sk_buff *msg;
5690 void *hdr;
5691
5692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5693 if (!msg)
5694 return;
5695
2e161f78 5696 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5697 if (!hdr) {
5698 nlmsg_free(msg);
5699 return;
5700 }
5701
5702 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5704 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5705 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5706 if (ack)
5707 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5708
5709 if (genlmsg_end(msg, hdr) < 0) {
5710 nlmsg_free(msg);
5711 return;
5712 }
5713
5714 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5715 return;
5716
5717 nla_put_failure:
5718 genlmsg_cancel(msg, hdr);
5719 nlmsg_free(msg);
5720}
5721
d6dc1a38
JO		 5722void
5723nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5724 struct net_device *netdev,
5725 enum nl80211_cqm_rssi_threshold_event rssi_event,
5726 gfp_t gfp)
5727{
5728 struct sk_buff *msg;
5729 struct nlattr *pinfoattr;
5730 void *hdr;
5731
5732 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5733 if (!msg)
5734 return;
5735
5736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5737 if (!hdr) {
5738 nlmsg_free(msg);
5739 return;
5740 }
5741
5742 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5744
5745 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5746 if (!pinfoattr)
5747 goto nla_put_failure;
5748
5749 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5750 rssi_event);
5751
5752 nla_nest_end(msg, pinfoattr);
5753
5754 if (genlmsg_end(msg, hdr) < 0) {
5755 nlmsg_free(msg);
5756 return;
5757 }
5758
5759 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5760 nl80211_mlme_mcgrp.id, gfp);
5761 return;
5762
5763 nla_put_failure:
5764 genlmsg_cancel(msg, hdr);
5765 nlmsg_free(msg);
5766}
5767
c063dbf5
JB		 5768void
5769nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5770 struct net_device *netdev, const u8 *peer,
5771 u32 num_packets, gfp_t gfp)
5772{
5773 struct sk_buff *msg;
5774 struct nlattr *pinfoattr;
5775 void *hdr;
5776
5777 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5778 if (!msg)
5779 return;
5780
5781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5782 if (!hdr) {
5783 nlmsg_free(msg);
5784 return;
5785 }
5786
5787 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5788 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5789 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5790
5791 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5792 if (!pinfoattr)
5793 goto nla_put_failure;
5794
5795 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5796
5797 nla_nest_end(msg, pinfoattr);
5798
5799 if (genlmsg_end(msg, hdr) < 0) {
5800 nlmsg_free(msg);
5801 return;
5802 }
5803
5804 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5805 nl80211_mlme_mcgrp.id, gfp);
5806 return;
5807
5808 nla_put_failure:
5809 genlmsg_cancel(msg, hdr);
5810 nlmsg_free(msg);
5811}
5812
026331c4
JM		 5813static int nl80211_netlink_notify(struct notifier_block * nb,
5814 unsigned long state,
5815 void *_notify)
5816{
5817 struct netlink_notify *notify = _notify;
5818 struct cfg80211_registered_device *rdev;
5819 struct wireless_dev *wdev;
5820
5821 if (state != NETLINK_URELEASE)
5822 return NOTIFY_DONE;
5823
5824 rcu_read_lock();
5825
5826 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5827 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5828 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5829
5830 rcu_read_unlock();
5831
5832 return NOTIFY_DONE;
5833}
5834
5835static struct notifier_block nl80211_netlink_notifier = {
5836 .notifier_call = nl80211_netlink_notify,
5837};
5838
55682965
JB		 5839/* initialisation/exit functions */
5840
5841int nl80211_init(void)
5842{
0d63cbb5 5843 int err;
55682965 5844
0d63cbb5
MM		 5845 err = genl_register_family_with_ops(&nl80211_fam,
5846 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5847 if (err)
5848 return err;
5849
55682965
JB		 5850 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5851 if (err)
5852 goto err_out;
5853
2a519311
JB		 5854 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5855 if (err)
5856 goto err_out;
5857
73d54c9e
LR		 5858 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5859 if (err)
5860 goto err_out;
5861
6039f6d2
JM		 5862 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5863 if (err)
5864 goto err_out;
5865
aff89a9b
JB		 5866#ifdef CONFIG_NL80211_TESTMODE
5867 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5868 if (err)
5869 goto err_out;
5870#endif
5871
026331c4
JM		 5872 err = netlink_register_notifier(&nl80211_netlink_notifier);
5873 if (err)
5874 goto err_out;
5875
55682965
JB		 5876 return 0;
5877 err_out:
5878 genl_unregister_family(&nl80211_fam);
5879 return err;
5880}
5881
5882void nl80211_exit(void)
5883{
026331c4 5884 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 5885 genl_unregister_family(&nl80211_fam);
5886}
kernel source for telekom puls (alcatel/mediatek)