projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ath5k: Include tx ack reporting on hw flags
[deliverable/linux.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);
2585 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2586 cur_params.auto_open_plinks);
2587 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2588 cur_params.dot11MeshHWMPmaxPREQretries);
2589 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2590 cur_params.path_refresh_time);
2591 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2592 cur_params.min_discovery_timeout);
2593 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2594 cur_params.dot11MeshHWMPactivePathTimeout);
2595 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2596 cur_params.dot11MeshHWMPpreqMinInterval);
2597 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2598 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2599 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2600 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2601 nla_nest_end(msg, pinfoattr);
2602 genlmsg_end(msg, hdr);
4c476991 2603 return genlmsg_reply(msg, info);
93da9cc1 2604
3b85875a 2605 nla_put_failure:
93da9cc1 2606 genlmsg_cancel(msg, hdr);
d080e275 2607 nlmsg_free(msg);
4c476991 2608 return -ENOBUFS;
93da9cc1 2609}
2610
2611#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2612do {\
2613 if (table[attr_num]) {\
2614 cfg.param = nla_fn(table[attr_num]); \
2615 mask |= (1 << (attr_num - 1)); \
2616 } \
2617} while (0);\
2618
b54452b0 2619static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2620 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2621 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2622 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2623 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2624 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2625 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2626 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2627
2628 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2629 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2630 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2631 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2632 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2633 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2634};
2635
2636static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2637{
93da9cc1 2638 u32 mask;
4c476991
JB		 2639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2640 struct net_device *dev = info->user_ptr[1];
93da9cc1 2641 struct mesh_config cfg;
2642 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2643 struct nlattr *parent_attr;
2644
2645 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2646 if (!parent_attr)
2647 return -EINVAL;
2648 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2649 parent_attr, nl80211_meshconf_params_policy))
2650 return -EINVAL;
2651
4c476991
JB		 2652 if (!rdev->ops->set_mesh_params)
2653 return -EOPNOTSUPP;
f3f92586 2654
93da9cc1 2655 /* This makes sure that there aren't more than 32 mesh config
2656 * parameters (otherwise our bitfield scheme would not work.) */
2657 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2658
2659 /* Fill in the params struct */
2660 mask = 0;
2661 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2662 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2663 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2664 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2665 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2666 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2668 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2670 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2671 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2672 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2674 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2676 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2677 nla_get_u8);
2678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2679 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2680 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2681 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2682 nla_get_u16);
2683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2684 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2685 nla_get_u32);
2686 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2687 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2688 nla_get_u16);
2689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2690 dot11MeshHWMPnetDiameterTraversalTime,
2691 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2692 nla_get_u16);
63c5723b
RP		 2693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2694 dot11MeshHWMPRootMode, mask,
2695 NL80211_MESHCONF_HWMP_ROOTMODE,
2696 nla_get_u8);
93da9cc1 2697
2698 /* Apply changes */
4c476991 2699 return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2700}
2701
2702#undef FILL_IN_MESH_PARAM_IF_SET
2703
f130347c
LR		 2704static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2705{
2706 struct sk_buff *msg;
2707 void *hdr = NULL;
2708 struct nlattr *nl_reg_rules;
2709 unsigned int i;
2710 int err = -EINVAL;
2711
a1794390 2712 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2713
2714 if (!cfg80211_regdomain)
2715 goto out;
2716
fd2120ca 2717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2718 if (!msg) {
2719 err = -ENOBUFS;
2720 goto out;
2721 }
2722
2723 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2724 NL80211_CMD_GET_REG);
2725 if (!hdr)
2726 goto nla_put_failure;
2727
2728 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2729 cfg80211_regdomain->alpha2);
2730
2731 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2732 if (!nl_reg_rules)
2733 goto nla_put_failure;
2734
2735 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2736 struct nlattr *nl_reg_rule;
2737 const struct ieee80211_reg_rule *reg_rule;
2738 const struct ieee80211_freq_range *freq_range;
2739 const struct ieee80211_power_rule *power_rule;
2740
2741 reg_rule = &cfg80211_regdomain->reg_rules[i];
2742 freq_range = &reg_rule->freq_range;
2743 power_rule = &reg_rule->power_rule;
2744
2745 nl_reg_rule = nla_nest_start(msg, i);
2746 if (!nl_reg_rule)
2747 goto nla_put_failure;
2748
2749 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2750 reg_rule->flags);
2751 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2752 freq_range->start_freq_khz);
2753 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2754 freq_range->end_freq_khz);
2755 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2756 freq_range->max_bandwidth_khz);
2757 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2758 power_rule->max_antenna_gain);
2759 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2760 power_rule->max_eirp);
2761
2762 nla_nest_end(msg, nl_reg_rule);
2763 }
2764
2765 nla_nest_end(msg, nl_reg_rules);
2766
2767 genlmsg_end(msg, hdr);
134e6375 2768 err = genlmsg_reply(msg, info);
f130347c
LR		 2769 goto out;
2770
2771nla_put_failure:
2772 genlmsg_cancel(msg, hdr);
d080e275 2773 nlmsg_free(msg);
f130347c
LR		 2774 err = -EMSGSIZE;
2775out:
a1794390 2776 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2777 return err;
2778}
2779
b2e1b302
LR		 2780static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2781{
2782 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2783 struct nlattr *nl_reg_rule;
2784 char *alpha2 = NULL;
2785 int rem_reg_rules = 0, r = 0;
2786 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2787 struct ieee80211_regdomain *rd = NULL;
2788
2789 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2790 return -EINVAL;
2791
2792 if (!info->attrs[NL80211_ATTR_REG_RULES])
2793 return -EINVAL;
2794
2795 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2796
2797 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2798 rem_reg_rules) {
2799 num_rules++;
2800 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2801 return -EINVAL;
b2e1b302
LR		 2802 }
2803
61405e97
LR		 2804 mutex_lock(&cfg80211_mutex);
2805
d0e18f83
LR		 2806 if (!reg_is_valid_request(alpha2)) {
2807 r = -EINVAL;
2808 goto bad_reg;
2809 }
b2e1b302
LR		 2810
2811 size_of_regd = sizeof(struct ieee80211_regdomain) +
2812 (num_rules * sizeof(struct ieee80211_reg_rule));
2813
2814 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2815 if (!rd) {
2816 r = -ENOMEM;
2817 goto bad_reg;
2818 }
b2e1b302
LR		 2819
2820 rd->n_reg_rules = num_rules;
2821 rd->alpha2[0] = alpha2[0];
2822 rd->alpha2[1] = alpha2[1];
2823
2824 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2825 rem_reg_rules) {
2826 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2827 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2828 reg_rule_policy);
2829 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2830 if (r)
2831 goto bad_reg;
2832
2833 rule_idx++;
2834
d0e18f83
LR		 2835 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2836 r = -EINVAL;
b2e1b302 2837 goto bad_reg;
d0e18f83 2838 }
b2e1b302
LR		 2839 }
2840
2841 BUG_ON(rule_idx != num_rules);
2842
b2e1b302 2843 r = set_regdom(rd);
61405e97 2844
a1794390 2845 mutex_unlock(&cfg80211_mutex);
d0e18f83 2846
b2e1b302
LR		 2847 return r;
2848
d2372b31 2849 bad_reg:
61405e97 2850 mutex_unlock(&cfg80211_mutex);
b2e1b302 2851 kfree(rd);
d0e18f83 2852 return r;
b2e1b302
LR		 2853}
2854
83f5e2cf
JB		 2855static int validate_scan_freqs(struct nlattr *freqs)
2856{
2857 struct nlattr *attr1, *attr2;
2858 int n_channels = 0, tmp1, tmp2;
2859
2860 nla_for_each_nested(attr1, freqs, tmp1) {
2861 n_channels++;
2862 /*
2863 * Some hardware has a limited channel list for
2864 * scanning, and it is pretty much nonsensical
2865 * to scan for a channel twice, so disallow that
2866 * and don't require drivers to check that the
2867 * channel list they get isn't longer than what
2868 * they can scan, as long as they can scan all
2869 * the channels they registered at once.
2870 */
2871 nla_for_each_nested(attr2, freqs, tmp2)
2872 if (attr1 != attr2 &&
2873 nla_get_u32(attr1) == nla_get_u32(attr2))
2874 return 0;
2875 }
2876
2877 return n_channels;
2878}
2879
2a519311
JB		 2880static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2881{
4c476991
JB		 2882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2883 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2884 struct cfg80211_scan_request *request;
2885 struct cfg80211_ssid *ssid;
2886 struct ieee80211_channel *channel;
2887 struct nlattr *attr;
2888 struct wiphy *wiphy;
83f5e2cf 2889 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2890 enum ieee80211_band band;
70692ad2 2891 size_t ie_len;
2a519311 2892
f4a11bb0
JB		 2893 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2894 return -EINVAL;
2895
79c97e97 2896 wiphy = &rdev->wiphy;
2a519311 2897
4c476991
JB		 2898 if (!rdev->ops->scan)
2899 return -EOPNOTSUPP;
2a519311 2900
4c476991
JB		 2901 if (rdev->scan_req)
2902 return -EBUSY;
2a519311
JB		 2903
2904 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2905 n_channels = validate_scan_freqs(
2906 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2907 if (!n_channels)
2908 return -EINVAL;
2a519311 2909 } else {
83f5e2cf
JB		 2910 n_channels = 0;
2911
2a519311
JB		 2912 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2913 if (wiphy->bands[band])
2914 n_channels += wiphy->bands[band]->n_channels;
2915 }
2916
2917 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2918 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2919 n_ssids++;
2920
4c476991
JB		 2921 if (n_ssids > wiphy->max_scan_ssids)
2922 return -EINVAL;
2a519311 2923
70692ad2
JM		 2924 if (info->attrs[NL80211_ATTR_IE])
2925 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2926 else
2927 ie_len = 0;
2928
4c476991
JB		 2929 if (ie_len > wiphy->max_scan_ie_len)
2930 return -EINVAL;
18a83659 2931
2a519311
JB		 2932 request = kzalloc(sizeof(*request)
2933 + sizeof(*ssid) * n_ssids
70692ad2
JM		 2934 + sizeof(channel) * n_channels
2935 + ie_len, GFP_KERNEL);
4c476991
JB		 2936 if (!request)
2937 return -ENOMEM;
2a519311 2938
2a519311 2939 if (n_ssids)
5ba63533 2940 request->ssids = (void *)&request->channels[n_channels];
2a519311 2941 request->n_ssids = n_ssids;
70692ad2
JM		 2942 if (ie_len) {
2943 if (request->ssids)
2944 request->ie = (void *)(request->ssids + n_ssids);
2945 else
2946 request->ie = (void *)(request->channels + n_channels);
2947 }
2a519311 2948
584991dc 2949 i = 0;
2a519311
JB		 2950 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2951 /* user specified, bail out if channel not found */
2a519311 2952 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 2953 struct ieee80211_channel *chan;
2954
2955 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2956
2957 if (!chan) {
2a519311
JB		 2958 err = -EINVAL;
2959 goto out_free;
2960 }
584991dc
JB		 2961
2962 /* ignore disabled channels */
2963 if (chan->flags & IEEE80211_CHAN_DISABLED)
2964 continue;
2965
2966 request->channels[i] = chan;
2a519311
JB		 2967 i++;
2968 }
2969 } else {
2970 /* all channels */
2a519311
JB		 2971 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2972 int j;
2973 if (!wiphy->bands[band])
2974 continue;
2975 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 2976 struct ieee80211_channel *chan;
2977
2978 chan = &wiphy->bands[band]->channels[j];
2979
2980 if (chan->flags & IEEE80211_CHAN_DISABLED)
2981 continue;
2982
2983 request->channels[i] = chan;
2a519311
JB		 2984 i++;
2985 }
2986 }
2987 }
2988
584991dc
JB		 2989 if (!i) {
2990 err = -EINVAL;
2991 goto out_free;
2992 }
2993
2994 request->n_channels = i;
2995
2a519311
JB		 2996 i = 0;
2997 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
2998 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
2999 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3000 err = -EINVAL;
3001 goto out_free;
3002 }
3003 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3004 request->ssids[i].ssid_len = nla_len(attr);
3005 i++;
3006 }
3007 }
3008
70692ad2
JM		 3009 if (info->attrs[NL80211_ATTR_IE]) {
3010 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3011 memcpy((void *)request->ie,
3012 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3013 request->ie_len);
3014 }
3015
463d0183 3016 request->dev = dev;
79c97e97 3017 request->wiphy = &rdev->wiphy;
2a519311 3018
79c97e97
JB		 3019 rdev->scan_req = request;
3020 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3021
463d0183 3022 if (!err) {
79c97e97 3023 nl80211_send_scan_start(rdev, dev);
463d0183 3024 dev_hold(dev);
4c476991 3025 } else {
2a519311 3026 out_free:
79c97e97 3027 rdev->scan_req = NULL;
2a519311
JB		 3028 kfree(request);
3029 }
3b85875a 3030
2a519311
JB		 3031 return err;
3032}
3033
3034static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3035 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3036 struct wireless_dev *wdev,
3037 struct cfg80211_internal_bss *intbss)
2a519311 3038{
48ab905d 3039 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3040 void *hdr;
3041 struct nlattr *bss;
48ab905d
JB		 3042 int i;
3043
3044 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3045
3046 hdr = nl80211hdr_put(msg, pid, seq, flags,
3047 NL80211_CMD_NEW_SCAN_RESULTS);
3048 if (!hdr)
3049 return -1;
3050
f5ea9120 3051 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3052 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3053
3054 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3055 if (!bss)
3056 goto nla_put_failure;
3057 if (!is_zero_ether_addr(res->bssid))
3058 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3059 if (res->information_elements && res->len_information_elements)
3060 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3061 res->len_information_elements,
3062 res->information_elements);
34a6eddb
JM		 3063 if (res->beacon_ies && res->len_beacon_ies &&
3064 res->beacon_ies != res->information_elements)
3065 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3066 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3067 if (res->tsf)
3068 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3069 if (res->beacon_interval)
3070 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3071 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3072 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3073 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3074 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3075
77965c97 3076 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3077 case CFG80211_SIGNAL_TYPE_MBM:
3078 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3079 break;
3080 case CFG80211_SIGNAL_TYPE_UNSPEC:
3081 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3082 break;
3083 default:
3084 break;
3085 }
3086
48ab905d 3087 switch (wdev->iftype) {
074ac8df 3088 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3089 case NL80211_IFTYPE_STATION:
3090 if (intbss == wdev->current_bss)
3091 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3092 NL80211_BSS_STATUS_ASSOCIATED);
3093 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3094 if (intbss != wdev->auth_bsses[i])
3095 continue;
3096 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3097 NL80211_BSS_STATUS_AUTHENTICATED);
3098 break;
3099 }
3100 break;
3101 case NL80211_IFTYPE_ADHOC:
3102 if (intbss == wdev->current_bss)
3103 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3104 NL80211_BSS_STATUS_IBSS_JOINED);
3105 break;
3106 default:
3107 break;
3108 }
3109
2a519311
JB		 3110 nla_nest_end(msg, bss);
3111
3112 return genlmsg_end(msg, hdr);
3113
3114 nla_put_failure:
3115 genlmsg_cancel(msg, hdr);
3116 return -EMSGSIZE;
3117}
3118
3119static int nl80211_dump_scan(struct sk_buff *skb,
3120 struct netlink_callback *cb)
3121{
48ab905d
JB		 3122 struct cfg80211_registered_device *rdev;
3123 struct net_device *dev;
2a519311 3124 struct cfg80211_internal_bss *scan;
48ab905d 3125 struct wireless_dev *wdev;
2a519311
JB		 3126 int start = cb->args[1], idx = 0;
3127 int err;
3128
67748893
JB		 3129 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3130 if (err)
3131 return err;
2a519311 3132
48ab905d 3133 wdev = dev->ieee80211_ptr;
2a519311 3134
48ab905d
JB		 3135 wdev_lock(wdev);
3136 spin_lock_bh(&rdev->bss_lock);
3137 cfg80211_bss_expire(rdev);
3138
3139 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3140 if (++idx <= start)
3141 continue;
3142 if (nl80211_send_bss(skb,
3143 NETLINK_CB(cb->skb).pid,
3144 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3145 rdev, wdev, scan) < 0) {
2a519311 3146 idx--;
67748893 3147 break;
2a519311
JB		 3148 }
3149 }
3150
48ab905d
JB		 3151 spin_unlock_bh(&rdev->bss_lock);
3152 wdev_unlock(wdev);
2a519311
JB		 3153
3154 cb->args[1] = idx;
67748893 3155 nl80211_finish_netdev_dump(rdev);
2a519311 3156
67748893 3157 return skb->len;
2a519311
JB		 3158}
3159
61fa713c
HS		 3160static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3161 int flags, struct net_device *dev,
3162 struct survey_info *survey)
3163{
3164 void *hdr;
3165 struct nlattr *infoattr;
3166
3167 /* Survey without a channel doesn't make sense */
3168 if (!survey->channel)
3169 return -EINVAL;
3170
3171 hdr = nl80211hdr_put(msg, pid, seq, flags,
3172 NL80211_CMD_NEW_SURVEY_RESULTS);
3173 if (!hdr)
3174 return -ENOMEM;
3175
3176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3177
3178 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3179 if (!infoattr)
3180 goto nla_put_failure;
3181
3182 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3183 survey->channel->center_freq);
3184 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3185 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3186 survey->noise);
17e5a808
FF		 3187 if (survey->filled & SURVEY_INFO_IN_USE)
3188 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3189 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3190 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3191 survey->channel_time);
3192 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3193 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3194 survey->channel_time_busy);
3195 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3196 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3197 survey->channel_time_ext_busy);
3198 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3199 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3200 survey->channel_time_rx);
3201 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3202 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3203 survey->channel_time_tx);
61fa713c
HS		 3204
3205 nla_nest_end(msg, infoattr);
3206
3207 return genlmsg_end(msg, hdr);
3208
3209 nla_put_failure:
3210 genlmsg_cancel(msg, hdr);
3211 return -EMSGSIZE;
3212}
3213
3214static int nl80211_dump_survey(struct sk_buff *skb,
3215 struct netlink_callback *cb)
3216{
3217 struct survey_info survey;
3218 struct cfg80211_registered_device *dev;
3219 struct net_device *netdev;
61fa713c
HS		 3220 int survey_idx = cb->args[1];
3221 int res;
3222
67748893
JB		 3223 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3224 if (res)
3225 return res;
61fa713c
HS		 3226
3227 if (!dev->ops->dump_survey) {
3228 res = -EOPNOTSUPP;
3229 goto out_err;
3230 }
3231
3232 while (1) {
3233 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3234 &survey);
3235 if (res == -ENOENT)
3236 break;
3237 if (res)
3238 goto out_err;
3239
3240 if (nl80211_send_survey(skb,
3241 NETLINK_CB(cb->skb).pid,
3242 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3243 netdev,
3244 &survey) < 0)
3245 goto out;
3246 survey_idx++;
3247 }
3248
3249 out:
3250 cb->args[1] = survey_idx;
3251 res = skb->len;
3252 out_err:
67748893 3253 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3254 return res;
3255}
3256
255e737e
JM		 3257static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3258{
b23aa676
SO		 3259 return auth_type <= NL80211_AUTHTYPE_MAX;
3260}
3261
3262static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3263{
3264 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3265 NL80211_WPA_VERSION_2));
3266}
3267
3268static bool nl80211_valid_akm_suite(u32 akm)
3269{
3270 return akm == WLAN_AKM_SUITE_8021X ||
3271 akm == WLAN_AKM_SUITE_PSK;
3272}
3273
3274static bool nl80211_valid_cipher_suite(u32 cipher)
3275{
3276 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3277 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3278 cipher == WLAN_CIPHER_SUITE_TKIP ||
3279 cipher == WLAN_CIPHER_SUITE_CCMP ||
3280 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3281}
3282
b23aa676 3283
636a5d36
JM		 3284static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3285{
4c476991
JB		 3286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3287 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3288 struct ieee80211_channel *chan;
3289 const u8 *bssid, *ssid, *ie = NULL;
3290 int err, ssid_len, ie_len = 0;
3291 enum nl80211_auth_type auth_type;
fffd0934 3292 struct key_parse key;
d5cdfacb 3293 bool local_state_change;
636a5d36 3294
f4a11bb0
JB		 3295 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3296 return -EINVAL;
3297
3298 if (!info->attrs[NL80211_ATTR_MAC])
3299 return -EINVAL;
3300
1778092e
JM		 3301 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3302 return -EINVAL;
3303
19957bb3
JB		 3304 if (!info->attrs[NL80211_ATTR_SSID])
3305 return -EINVAL;
3306
3307 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3308 return -EINVAL;
3309
fffd0934
JB		 3310 err = nl80211_parse_key(info, &key);
3311 if (err)
3312 return err;
3313
3314 if (key.idx >= 0) {
e31b8213
JB		 3315 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3316 return -EINVAL;
fffd0934
JB		 3317 if (!key.p.key || !key.p.key_len)
3318 return -EINVAL;
3319 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3320 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3321 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3322 key.p.key_len != WLAN_KEY_LEN_WEP104))
3323 return -EINVAL;
3324 if (key.idx > 4)
3325 return -EINVAL;
3326 } else {
3327 key.p.key_len = 0;
3328 key.p.key = NULL;
3329 }
3330
afea0b7a
JB		 3331 if (key.idx >= 0) {
3332 int i;
3333 bool ok = false;
3334 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3335 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3336 ok = true;
3337 break;
3338 }
3339 }
4c476991
JB		 3340 if (!ok)
3341 return -EINVAL;
afea0b7a
JB		 3342 }
3343
4c476991
JB		 3344 if (!rdev->ops->auth)
3345 return -EOPNOTSUPP;
636a5d36 3346
074ac8df 3347 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3348 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3349 return -EOPNOTSUPP;
eec60b03 3350
19957bb3 3351 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3352 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3353 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3354 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3355 return -EINVAL;
636a5d36 3356
19957bb3
JB		 3357 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3358 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3359
3360 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3361 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3362 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3363 }
3364
19957bb3 3365 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3366 if (!nl80211_valid_auth_type(auth_type))
3367 return -EINVAL;
636a5d36 3368
d5cdfacb
JM		 3369 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3370
4c476991
JB		 3371 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3372 ssid, ssid_len, ie, ie_len,
3373 key.p.key, key.p.key_len, key.idx,
3374 local_state_change);
636a5d36
JM		 3375}
3376
c0692b8f
JB		 3377static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3378 struct genl_info *info,
3dc27d25
JB		 3379 struct cfg80211_crypto_settings *settings,
3380 int cipher_limit)
b23aa676 3381{
c0b2bbd8
JB		 3382 memset(settings, 0, sizeof(*settings));
3383
b23aa676
SO		 3384 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3385
c0692b8f
JB		 3386 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3387 u16 proto;
3388 proto = nla_get_u16(
3389 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3390 settings->control_port_ethertype = cpu_to_be16(proto);
3391 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3392 proto != ETH_P_PAE)
3393 return -EINVAL;
3394 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3395 settings->control_port_no_encrypt = true;
3396 } else
3397 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3398
b23aa676
SO		 3399 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3400 void *data;
3401 int len, i;
3402
3403 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3404 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3405 settings->n_ciphers_pairwise = len / sizeof(u32);
3406
3407 if (len % sizeof(u32))
3408 return -EINVAL;
3409
3dc27d25 3410 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3411 return -EINVAL;
3412
3413 memcpy(settings->ciphers_pairwise, data, len);
3414
3415 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3416 if (!nl80211_valid_cipher_suite(
3417 settings->ciphers_pairwise[i]))
3418 return -EINVAL;
3419 }
3420
3421 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3422 settings->cipher_group =
3423 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3424 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3425 return -EINVAL;
3426 }
3427
3428 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3429 settings->wpa_versions =
3430 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3431 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3432 return -EINVAL;
3433 }
3434
3435 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3436 void *data;
3437 int len, i;
3438
3439 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3440 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3441 settings->n_akm_suites = len / sizeof(u32);
3442
3443 if (len % sizeof(u32))
3444 return -EINVAL;
3445
3446 memcpy(settings->akm_suites, data, len);
3447
3448 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3449 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3450 return -EINVAL;
3451 }
3452
3453 return 0;
3454}
3455
636a5d36
JM		 3456static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3457{
4c476991
JB		 3458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3459 struct net_device *dev = info->user_ptr[1];
19957bb3 3460 struct cfg80211_crypto_settings crypto;
f444de05 3461 struct ieee80211_channel *chan;
3e5d7649 3462 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3463 int err, ssid_len, ie_len = 0;
3464 bool use_mfp = false;
636a5d36 3465
f4a11bb0
JB		 3466 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3467 return -EINVAL;
3468
3469 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3470 !info->attrs[NL80211_ATTR_SSID] ||
3471 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3472 return -EINVAL;
3473
4c476991
JB		 3474 if (!rdev->ops->assoc)
3475 return -EOPNOTSUPP;
636a5d36 3476
074ac8df 3477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3478 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3479 return -EOPNOTSUPP;
eec60b03 3480
19957bb3 3481 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3482
19957bb3
JB		 3483 chan = ieee80211_get_channel(&rdev->wiphy,
3484 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3485 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3486 return -EINVAL;
636a5d36 3487
19957bb3
JB		 3488 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3489 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3490
3491 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3492 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3493 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3494 }
3495
dc6382ce 3496 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3497 enum nl80211_mfp mfp =
dc6382ce 3498 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3499 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3500 use_mfp = true;
4c476991
JB		 3501 else if (mfp != NL80211_MFP_NO)
3502 return -EINVAL;
dc6382ce
JM		 3503 }
3504
3e5d7649
JB		 3505 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3506 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3507
c0692b8f 3508 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3509 if (!err)
3e5d7649
JB		 3510 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3511 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3512 &crypto);
636a5d36 3513
636a5d36
JM		 3514 return err;
3515}
3516
3517static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3518{
4c476991
JB		 3519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3520 struct net_device *dev = info->user_ptr[1];
19957bb3 3521 const u8 *ie = NULL, *bssid;
4c476991 3522 int ie_len = 0;
19957bb3 3523 u16 reason_code;
d5cdfacb 3524 bool local_state_change;
636a5d36 3525
f4a11bb0
JB		 3526 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3527 return -EINVAL;
3528
3529 if (!info->attrs[NL80211_ATTR_MAC])
3530 return -EINVAL;
3531
3532 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3533 return -EINVAL;
3534
4c476991
JB		 3535 if (!rdev->ops->deauth)
3536 return -EOPNOTSUPP;
636a5d36 3537
074ac8df 3538 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3539 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3540 return -EOPNOTSUPP;
eec60b03 3541
19957bb3 3542 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3543
19957bb3
JB		 3544 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3545 if (reason_code == 0) {
f4a11bb0 3546 /* Reason Code 0 is reserved */
4c476991 3547 return -EINVAL;
255e737e 3548 }
636a5d36
JM		 3549
3550 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3551 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3552 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3553 }
3554
d5cdfacb
JM		 3555 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3556
4c476991
JB		 3557 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3558 local_state_change);
636a5d36
JM		 3559}
3560
3561static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3562{
4c476991
JB		 3563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3564 struct net_device *dev = info->user_ptr[1];
19957bb3 3565 const u8 *ie = NULL, *bssid;
4c476991 3566 int ie_len = 0;
19957bb3 3567 u16 reason_code;
d5cdfacb 3568 bool local_state_change;
636a5d36 3569
f4a11bb0
JB		 3570 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3571 return -EINVAL;
3572
3573 if (!info->attrs[NL80211_ATTR_MAC])
3574 return -EINVAL;
3575
3576 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3577 return -EINVAL;
3578
4c476991
JB		 3579 if (!rdev->ops->disassoc)
3580 return -EOPNOTSUPP;
636a5d36 3581
074ac8df 3582 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3583 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3584 return -EOPNOTSUPP;
eec60b03 3585
19957bb3 3586 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3587
19957bb3
JB		 3588 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3589 if (reason_code == 0) {
f4a11bb0 3590 /* Reason Code 0 is reserved */
4c476991 3591 return -EINVAL;
255e737e 3592 }
636a5d36
JM		 3593
3594 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3595 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3596 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3597 }
3598
d5cdfacb
JM		 3599 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3600
4c476991
JB		 3601 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3602 local_state_change);
636a5d36
JM		 3603}
3604
dd5b4cc7
FF		 3605static bool
3606nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3607 int mcast_rate[IEEE80211_NUM_BANDS],
3608 int rateval)
3609{
3610 struct wiphy *wiphy = &rdev->wiphy;
3611 bool found = false;
3612 int band, i;
3613
3614 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3615 struct ieee80211_supported_band *sband;
3616
3617 sband = wiphy->bands[band];
3618 if (!sband)
3619 continue;
3620
3621 for (i = 0; i < sband->n_bitrates; i++) {
3622 if (sband->bitrates[i].bitrate == rateval) {
3623 mcast_rate[band] = i + 1;
3624 found = true;
3625 break;
3626 }
3627 }
3628 }
3629
3630 return found;
3631}
3632
04a773ad
JB		 3633static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3634{
4c476991
JB		 3635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3636 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3637 struct cfg80211_ibss_params ibss;
3638 struct wiphy *wiphy;
fffd0934 3639 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3640 int err;
3641
8e30bc55
JB		 3642 memset(&ibss, 0, sizeof(ibss));
3643
04a773ad
JB		 3644 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3645 return -EINVAL;
3646
3647 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3648 !info->attrs[NL80211_ATTR_SSID] ||
3649 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3650 return -EINVAL;
3651
8e30bc55
JB		 3652 ibss.beacon_interval = 100;
3653
3654 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3655 ibss.beacon_interval =
3656 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3657 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3658 return -EINVAL;
3659 }
3660
4c476991
JB		 3661 if (!rdev->ops->join_ibss)
3662 return -EOPNOTSUPP;
04a773ad 3663
4c476991
JB		 3664 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3665 return -EOPNOTSUPP;
04a773ad 3666
79c97e97 3667 wiphy = &rdev->wiphy;
04a773ad
JB		 3668
3669 if (info->attrs[NL80211_ATTR_MAC])
3670 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3671 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3672 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3673
3674 if (info->attrs[NL80211_ATTR_IE]) {
3675 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3676 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3677 }
3678
3679 ibss.channel = ieee80211_get_channel(wiphy,
3680 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3681 if (!ibss.channel ||
3682 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3683 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3684 return -EINVAL;
04a773ad
JB		 3685
3686 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3687 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3688
fbd2c8dc
TP		 3689 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3690 u8 *rates =
3691 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3692 int n_rates =
3693 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3694 struct ieee80211_supported_band *sband =
3695 wiphy->bands[ibss.channel->band];
3696 int i, j;
3697
4c476991
JB		 3698 if (n_rates == 0)
3699 return -EINVAL;
fbd2c8dc
TP		 3700
3701 for (i = 0; i < n_rates; i++) {
3702 int rate = (rates[i] & 0x7f) * 5;
3703 bool found = false;
3704
3705 for (j = 0; j < sband->n_bitrates; j++) {
3706 if (sband->bitrates[j].bitrate == rate) {
3707 found = true;
3708 ibss.basic_rates |= BIT(j);
3709 break;
3710 }
3711 }
4c476991
JB		 3712 if (!found)
3713 return -EINVAL;
fbd2c8dc 3714 }
fbd2c8dc 3715 }
dd5b4cc7
FF		 3716
3717 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3718 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3719 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3720 return -EINVAL;
fbd2c8dc 3721
4c476991
JB		 3722 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3723 connkeys = nl80211_parse_connkeys(rdev,
3724 info->attrs[NL80211_ATTR_KEYS]);
3725 if (IS_ERR(connkeys))
3726 return PTR_ERR(connkeys);
3727 }
04a773ad 3728
4c476991 3729 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3730 if (err)
3731 kfree(connkeys);
04a773ad
JB		 3732 return err;
3733}
3734
3735static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3736{
4c476991
JB		 3737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3738 struct net_device *dev = info->user_ptr[1];
04a773ad 3739
4c476991
JB		 3740 if (!rdev->ops->leave_ibss)
3741 return -EOPNOTSUPP;
04a773ad 3742
4c476991
JB		 3743 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3744 return -EOPNOTSUPP;
04a773ad 3745
4c476991 3746 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3747}
3748
aff89a9b
JB		 3749#ifdef CONFIG_NL80211_TESTMODE
3750static struct genl_multicast_group nl80211_testmode_mcgrp = {
3751 .name = "testmode",
3752};
3753
3754static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3755{
4c476991 3756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3757 int err;
3758
3759 if (!info->attrs[NL80211_ATTR_TESTDATA])
3760 return -EINVAL;
3761
aff89a9b
JB		 3762 err = -EOPNOTSUPP;
3763 if (rdev->ops->testmode_cmd) {
3764 rdev->testmode_info = info;
3765 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3766 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3767 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3768 rdev->testmode_info = NULL;
3769 }
3770
aff89a9b
JB		 3771 return err;
3772}
3773
3774static struct sk_buff *
3775__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3776 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3777{
3778 struct sk_buff *skb;
3779 void *hdr;
3780 struct nlattr *data;
3781
3782 skb = nlmsg_new(approxlen + 100, gfp);
3783 if (!skb)
3784 return NULL;
3785
3786 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3787 if (!hdr) {
3788 kfree_skb(skb);
3789 return NULL;
3790 }
3791
3792 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3793 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3794
3795 ((void **)skb->cb)[0] = rdev;
3796 ((void **)skb->cb)[1] = hdr;
3797 ((void **)skb->cb)[2] = data;
3798
3799 return skb;
3800
3801 nla_put_failure:
3802 kfree_skb(skb);
3803 return NULL;
3804}
3805
3806struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3807 int approxlen)
3808{
3809 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3810
3811 if (WARN_ON(!rdev->testmode_info))
3812 return NULL;
3813
3814 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3815 rdev->testmode_info->snd_pid,
3816 rdev->testmode_info->snd_seq,
3817 GFP_KERNEL);
3818}
3819EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3820
3821int cfg80211_testmode_reply(struct sk_buff *skb)
3822{
3823 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3824 void *hdr = ((void **)skb->cb)[1];
3825 struct nlattr *data = ((void **)skb->cb)[2];
3826
3827 if (WARN_ON(!rdev->testmode_info)) {
3828 kfree_skb(skb);
3829 return -EINVAL;
3830 }
3831
3832 nla_nest_end(skb, data);
3833 genlmsg_end(skb, hdr);
3834 return genlmsg_reply(skb, rdev->testmode_info);
3835}
3836EXPORT_SYMBOL(cfg80211_testmode_reply);
3837
3838struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3839 int approxlen, gfp_t gfp)
3840{
3841 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3842
3843 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3844}
3845EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3846
3847void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3848{
3849 void *hdr = ((void **)skb->cb)[1];
3850 struct nlattr *data = ((void **)skb->cb)[2];
3851
3852 nla_nest_end(skb, data);
3853 genlmsg_end(skb, hdr);
3854 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3855}
3856EXPORT_SYMBOL(cfg80211_testmode_event);
3857#endif
3858
b23aa676
SO		 3859static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3860{
4c476991
JB		 3861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3862 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3863 struct cfg80211_connect_params connect;
3864 struct wiphy *wiphy;
fffd0934 3865 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3866 int err;
3867
3868 memset(&connect, 0, sizeof(connect));
3869
3870 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3871 return -EINVAL;
3872
3873 if (!info->attrs[NL80211_ATTR_SSID] ||
3874 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3875 return -EINVAL;
3876
3877 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3878 connect.auth_type =
3879 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3880 if (!nl80211_valid_auth_type(connect.auth_type))
3881 return -EINVAL;
3882 } else
3883 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3884
3885 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3886
c0692b8f 3887 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3888 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3889 if (err)
3890 return err;
b23aa676 3891
074ac8df 3892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3894 return -EOPNOTSUPP;
b23aa676 3895
79c97e97 3896 wiphy = &rdev->wiphy;
b23aa676 3897
b23aa676
SO		 3898 if (info->attrs[NL80211_ATTR_MAC])
3899 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3900 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3901 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3902
3903 if (info->attrs[NL80211_ATTR_IE]) {
3904 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3905 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3906 }
3907
3908 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3909 connect.channel =
3910 ieee80211_get_channel(wiphy,
3911 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3912 if (!connect.channel ||
4c476991
JB		 3913 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3914 return -EINVAL;
b23aa676
SO		 3915 }
3916
fffd0934
JB		 3917 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3918 connkeys = nl80211_parse_connkeys(rdev,
3919 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3920 if (IS_ERR(connkeys))
3921 return PTR_ERR(connkeys);
fffd0934
JB		 3922 }
3923
3924 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 3925 if (err)
3926 kfree(connkeys);
b23aa676
SO		 3927 return err;
3928}
3929
3930static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3931{
4c476991
JB		 3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3933 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3934 u16 reason;
3935
3936 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3937 reason = WLAN_REASON_DEAUTH_LEAVING;
3938 else
3939 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3940
3941 if (reason == 0)
3942 return -EINVAL;
3943
074ac8df 3944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3945 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3946 return -EOPNOTSUPP;
b23aa676 3947
4c476991 3948 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 3949}
3950
463d0183
JB		 3951static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
3952{
4c476991 3953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 3954 struct net *net;
3955 int err;
3956 u32 pid;
3957
3958 if (!info->attrs[NL80211_ATTR_PID])
3959 return -EINVAL;
3960
3961 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
3962
463d0183 3963 net = get_net_ns_by_pid(pid);
4c476991
JB		 3964 if (IS_ERR(net))
3965 return PTR_ERR(net);
463d0183
JB		 3966
3967 err = 0;
3968
3969 /* check if anything to do */
4c476991
JB		 3970 if (!net_eq(wiphy_net(&rdev->wiphy), net))
3971 err = cfg80211_switch_netns(rdev, net);
463d0183 3972
463d0183 3973 put_net(net);
463d0183
JB		 3974 return err;
3975}
3976
67fbb16b
SO		 3977static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
3978{
4c476991 3979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 3980 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
3981 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 3982 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 3983 struct cfg80211_pmksa pmksa;
3984
3985 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
3986
3987 if (!info->attrs[NL80211_ATTR_MAC])
3988 return -EINVAL;
3989
3990 if (!info->attrs[NL80211_ATTR_PMKID])
3991 return -EINVAL;
3992
67fbb16b
SO		 3993 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
3994 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3995
074ac8df 3996 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3997 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3998 return -EOPNOTSUPP;
67fbb16b
SO		 3999
4000 switch (info->genlhdr->cmd) {
4001 case NL80211_CMD_SET_PMKSA:
4002 rdev_ops = rdev->ops->set_pmksa;
4003 break;
4004 case NL80211_CMD_DEL_PMKSA:
4005 rdev_ops = rdev->ops->del_pmksa;
4006 break;
4007 default:
4008 WARN_ON(1);
4009 break;
4010 }
4011
4c476991
JB		 4012 if (!rdev_ops)
4013 return -EOPNOTSUPP;
67fbb16b 4014
4c476991 4015 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4016}
4017
4018static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4019{
4c476991
JB		 4020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4021 struct net_device *dev = info->user_ptr[1];
67fbb16b 4022
074ac8df 4023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4025 return -EOPNOTSUPP;
67fbb16b 4026
4c476991
JB		 4027 if (!rdev->ops->flush_pmksa)
4028 return -EOPNOTSUPP;
67fbb16b 4029
4c476991 4030 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4031}
4032
9588bbd5
JM		 4033static int nl80211_remain_on_channel(struct sk_buff *skb,
4034 struct genl_info *info)
4035{
4c476991
JB		 4036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4037 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4038 struct ieee80211_channel *chan;
4039 struct sk_buff *msg;
4040 void *hdr;
4041 u64 cookie;
4042 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4043 u32 freq, duration;
4044 int err;
4045
4046 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4047 !info->attrs[NL80211_ATTR_DURATION])
4048 return -EINVAL;
4049
4050 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4051
4052 /*
4053 * We should be on that channel for at least one jiffie,
4054 * and more than 5 seconds seems excessive.
4055 */
4056 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4057 return -EINVAL;
4058
4c476991
JB		 4059 if (!rdev->ops->remain_on_channel)
4060 return -EOPNOTSUPP;
9588bbd5 4061
9588bbd5
JM		 4062 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4063 channel_type = nla_get_u32(
4064 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4065 if (channel_type != NL80211_CHAN_NO_HT &&
4066 channel_type != NL80211_CHAN_HT20 &&
4067 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4068 channel_type != NL80211_CHAN_HT40MINUS)
4069 return -EINVAL;
9588bbd5
JM		 4070 }
4071
4072 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4073 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4074 if (chan == NULL)
4075 return -EINVAL;
9588bbd5
JM		 4076
4077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4078 if (!msg)
4079 return -ENOMEM;
9588bbd5
JM		 4080
4081 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4082 NL80211_CMD_REMAIN_ON_CHANNEL);
4083
4084 if (IS_ERR(hdr)) {
4085 err = PTR_ERR(hdr);
4086 goto free_msg;
4087 }
4088
4089 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4090 channel_type, duration, &cookie);
4091
4092 if (err)
4093 goto free_msg;
4094
4095 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4096
4097 genlmsg_end(msg, hdr);
4c476991
JB		 4098
4099 return genlmsg_reply(msg, info);
9588bbd5
JM		 4100
4101 nla_put_failure:
4102 err = -ENOBUFS;
4103 free_msg:
4104 nlmsg_free(msg);
9588bbd5
JM		 4105 return err;
4106}
4107
4108static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4109 struct genl_info *info)
4110{
4c476991
JB		 4111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4112 struct net_device *dev = info->user_ptr[1];
9588bbd5 4113 u64 cookie;
9588bbd5
JM		 4114
4115 if (!info->attrs[NL80211_ATTR_COOKIE])
4116 return -EINVAL;
4117
4c476991
JB		 4118 if (!rdev->ops->cancel_remain_on_channel)
4119 return -EOPNOTSUPP;
9588bbd5 4120
9588bbd5
JM		 4121 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4122
4c476991 4123 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4124}
4125
13ae75b1
JM		 4126static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4127 u8 *rates, u8 rates_len)
4128{
4129 u8 i;
4130 u32 mask = 0;
4131
4132 for (i = 0; i < rates_len; i++) {
4133 int rate = (rates[i] & 0x7f) * 5;
4134 int ridx;
4135 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4136 struct ieee80211_rate *srate =
4137 &sband->bitrates[ridx];
4138 if (rate == srate->bitrate) {
4139 mask |= 1 << ridx;
4140 break;
4141 }
4142 }
4143 if (ridx == sband->n_bitrates)
4144 return 0; /* rate not found */
4145 }
4146
4147 return mask;
4148}
4149
b54452b0 4150static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4151 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4152 .len = NL80211_MAX_SUPP_RATES },
4153};
4154
4155static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4156 struct genl_info *info)
4157{
4158 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4160 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4161 int rem, i;
4162 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4163 struct nlattr *tx_rates;
4164 struct ieee80211_supported_band *sband;
4165
4166 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4167 return -EINVAL;
4168
4c476991
JB		 4169 if (!rdev->ops->set_bitrate_mask)
4170 return -EOPNOTSUPP;
13ae75b1
JM		 4171
4172 memset(&mask, 0, sizeof(mask));
4173 /* Default to all rates enabled */
4174 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4175 sband = rdev->wiphy.bands[i];
4176 mask.control[i].legacy =
4177 sband ? (1 << sband->n_bitrates) - 1 : 0;
4178 }
4179
4180 /*
4181 * The nested attribute uses enum nl80211_band as the index. This maps
4182 * directly to the enum ieee80211_band values used in cfg80211.
4183 */
4184 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4185 {
4186 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4187 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4188 return -EINVAL;
13ae75b1 4189 sband = rdev->wiphy.bands[band];
4c476991
JB		 4190 if (sband == NULL)
4191 return -EINVAL;
13ae75b1
JM		 4192 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4193 nla_len(tx_rates), nl80211_txattr_policy);
4194 if (tb[NL80211_TXRATE_LEGACY]) {
4195 mask.control[band].legacy = rateset_to_mask(
4196 sband,
4197 nla_data(tb[NL80211_TXRATE_LEGACY]),
4198 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4199 if (mask.control[band].legacy == 0)
4200 return -EINVAL;
13ae75b1
JM		 4201 }
4202 }
4203
4c476991 4204 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4205}
4206
2e161f78 4207static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4208{
4c476991
JB		 4209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4210 struct net_device *dev = info->user_ptr[1];
2e161f78 4211 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4212
4213 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4214 return -EINVAL;
4215
2e161f78
JB		 4216 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4217 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4218
9d38d85d 4219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4220 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4222 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4223 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4224 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4225 return -EOPNOTSUPP;
026331c4
JM		 4226
4227 /* not much point in registering if we can't reply */
4c476991
JB		 4228 if (!rdev->ops->mgmt_tx)
4229 return -EOPNOTSUPP;
026331c4 4230
4c476991 4231 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4232 frame_type,
026331c4
JM		 4233 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4234 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4235}
4236
2e161f78 4237static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4238{
4c476991
JB		 4239 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4240 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4241 struct ieee80211_channel *chan;
4242 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4243 bool channel_type_valid = false;
026331c4
JM		 4244 u32 freq;
4245 int err;
4246 void *hdr;
4247 u64 cookie;
4248 struct sk_buff *msg;
f7ca38df
JB		 4249 unsigned int wait = 0;
4250 bool offchan;
026331c4
JM		 4251
4252 if (!info->attrs[NL80211_ATTR_FRAME] ||
4253 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4254 return -EINVAL;
4255
4c476991
JB		 4256 if (!rdev->ops->mgmt_tx)
4257 return -EOPNOTSUPP;
026331c4 4258
9d38d85d 4259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4260 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4261 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4263 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4265 return -EOPNOTSUPP;
026331c4 4266
f7ca38df
JB		 4267 if (info->attrs[NL80211_ATTR_DURATION]) {
4268 if (!rdev->ops->mgmt_tx_cancel_wait)
4269 return -EINVAL;
4270 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4271 }
4272
026331c4
JM		 4273 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4274 channel_type = nla_get_u32(
4275 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4276 if (channel_type != NL80211_CHAN_NO_HT &&
4277 channel_type != NL80211_CHAN_HT20 &&
4278 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4279 channel_type != NL80211_CHAN_HT40MINUS)
4280 return -EINVAL;
252aa631 4281 channel_type_valid = true;
026331c4
JM		 4282 }
4283
f7ca38df
JB		 4284 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4285
026331c4
JM		 4286 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4287 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4288 if (chan == NULL)
4289 return -EINVAL;
026331c4
JM		 4290
4291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4292 if (!msg)
4293 return -ENOMEM;
026331c4
JM		 4294
4295 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4296 NL80211_CMD_FRAME);
026331c4
JM		 4297
4298 if (IS_ERR(hdr)) {
4299 err = PTR_ERR(hdr);
4300 goto free_msg;
4301 }
f7ca38df
JB		 4302 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4303 channel_type_valid, wait,
2e161f78
JB		 4304 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4305 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4306 &cookie);
026331c4
JM		 4307 if (err)
4308 goto free_msg;
4309
4310 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4311
4312 genlmsg_end(msg, hdr);
4c476991 4313 return genlmsg_reply(msg, info);
026331c4
JM		 4314
4315 nla_put_failure:
4316 err = -ENOBUFS;
4317 free_msg:
4318 nlmsg_free(msg);
026331c4
JM		 4319 return err;
4320}
4321
f7ca38df
JB		 4322static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4323{
4324 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4325 struct net_device *dev = info->user_ptr[1];
4326 u64 cookie;
4327
4328 if (!info->attrs[NL80211_ATTR_COOKIE])
4329 return -EINVAL;
4330
4331 if (!rdev->ops->mgmt_tx_cancel_wait)
4332 return -EOPNOTSUPP;
4333
4334 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4335 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4336 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4337 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4338 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4340 return -EOPNOTSUPP;
4341
4342 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4343
4344 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4345}
4346
ffb9eb3d
KV		 4347static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4348{
4c476991 4349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4350 struct wireless_dev *wdev;
4c476991 4351 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4352 u8 ps_state;
4353 bool state;
4354 int err;
4355
4c476991
JB		 4356 if (!info->attrs[NL80211_ATTR_PS_STATE])
4357 return -EINVAL;
ffb9eb3d
KV		 4358
4359 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4360
4c476991
JB		 4361 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4362 return -EINVAL;
ffb9eb3d
KV		 4363
4364 wdev = dev->ieee80211_ptr;
4365
4c476991
JB		 4366 if (!rdev->ops->set_power_mgmt)
4367 return -EOPNOTSUPP;
ffb9eb3d
KV		 4368
4369 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4370
4371 if (state == wdev->ps)
4c476991 4372 return 0;
ffb9eb3d 4373
4c476991
JB		 4374 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4375 wdev->ps_timeout);
4376 if (!err)
4377 wdev->ps = state;
ffb9eb3d
KV		 4378 return err;
4379}
4380
4381static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4382{
4c476991 4383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4384 enum nl80211_ps_state ps_state;
4385 struct wireless_dev *wdev;
4c476991 4386 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4387 struct sk_buff *msg;
4388 void *hdr;
4389 int err;
4390
ffb9eb3d
KV		 4391 wdev = dev->ieee80211_ptr;
4392
4c476991
JB		 4393 if (!rdev->ops->set_power_mgmt)
4394 return -EOPNOTSUPP;
ffb9eb3d
KV		 4395
4396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4397 if (!msg)
4398 return -ENOMEM;
ffb9eb3d
KV		 4399
4400 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4401 NL80211_CMD_GET_POWER_SAVE);
4402 if (!hdr) {
4c476991 4403 err = -ENOBUFS;
ffb9eb3d
KV		 4404 goto free_msg;
4405 }
4406
4407 if (wdev->ps)
4408 ps_state = NL80211_PS_ENABLED;
4409 else
4410 ps_state = NL80211_PS_DISABLED;
4411
4412 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4413
4414 genlmsg_end(msg, hdr);
4c476991 4415 return genlmsg_reply(msg, info);
ffb9eb3d 4416
4c476991 4417 nla_put_failure:
ffb9eb3d 4418 err = -ENOBUFS;
4c476991 4419 free_msg:
ffb9eb3d 4420 nlmsg_free(msg);
ffb9eb3d
KV		 4421 return err;
4422}
4423
d6dc1a38
JO		 4424static struct nla_policy
4425nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4426 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4427 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4428 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4429};
4430
4431static int nl80211_set_cqm_rssi(struct genl_info *info,
4432 s32 threshold, u32 hysteresis)
4433{
4c476991 4434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4435 struct wireless_dev *wdev;
4c476991 4436 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4437
4438 if (threshold > 0)
4439 return -EINVAL;
4440
d6dc1a38
JO		 4441 wdev = dev->ieee80211_ptr;
4442
4c476991
JB		 4443 if (!rdev->ops->set_cqm_rssi_config)
4444 return -EOPNOTSUPP;
d6dc1a38 4445
074ac8df 4446 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4447 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4448 return -EOPNOTSUPP;
d6dc1a38 4449
4c476991
JB		 4450 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4451 threshold, hysteresis);
d6dc1a38
JO		 4452}
4453
4454static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4455{
4456 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4457 struct nlattr *cqm;
4458 int err;
4459
4460 cqm = info->attrs[NL80211_ATTR_CQM];
4461 if (!cqm) {
4462 err = -EINVAL;
4463 goto out;
4464 }
4465
4466 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4467 nl80211_attr_cqm_policy);
4468 if (err)
4469 goto out;
4470
4471 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4472 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4473 s32 threshold;
4474 u32 hysteresis;
4475 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4476 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4477 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4478 } else
4479 err = -EINVAL;
4480
4481out:
4482 return err;
4483}
4484
4c476991
JB		 4485#define NL80211_FLAG_NEED_WIPHY 0x01
4486#define NL80211_FLAG_NEED_NETDEV 0x02
4487#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4488#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4489#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4490 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4491
4492static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4493 struct genl_info *info)
4494{
4495 struct cfg80211_registered_device *rdev;
4496 struct net_device *dev;
4497 int err;
4498 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4499
4500 if (rtnl)
4501 rtnl_lock();
4502
4503 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4504 rdev = cfg80211_get_dev_from_info(info);
4505 if (IS_ERR(rdev)) {
4506 if (rtnl)
4507 rtnl_unlock();
4508 return PTR_ERR(rdev);
4509 }
4510 info->user_ptr[0] = rdev;
4511 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4512 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4513 if (err) {
4514 if (rtnl)
4515 rtnl_unlock();
4516 return err;
4517 }
41265714
JB		 4518 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4519 !netif_running(dev)) {
d537f5fd
JB		 4520 cfg80211_unlock_rdev(rdev);
4521 dev_put(dev);
41265714
JB		 4522 if (rtnl)
4523 rtnl_unlock();
4524 return -ENETDOWN;
4525 }
4c476991
JB		 4526 info->user_ptr[0] = rdev;
4527 info->user_ptr[1] = dev;
4528 }
4529
4530 return 0;
4531}
4532
4533static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4534 struct genl_info *info)
4535{
4536 if (info->user_ptr[0])
4537 cfg80211_unlock_rdev(info->user_ptr[0]);
4538 if (info->user_ptr[1])
4539 dev_put(info->user_ptr[1]);
4540 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4541 rtnl_unlock();
4542}
4543
55682965
JB		 4544static struct genl_ops nl80211_ops[] = {
4545 {
4546 .cmd = NL80211_CMD_GET_WIPHY,
4547 .doit = nl80211_get_wiphy,
4548 .dumpit = nl80211_dump_wiphy,
4549 .policy = nl80211_policy,
4550 /* can be retrieved by unprivileged users */
4c476991 4551 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4552 },
4553 {
4554 .cmd = NL80211_CMD_SET_WIPHY,
4555 .doit = nl80211_set_wiphy,
4556 .policy = nl80211_policy,
4557 .flags = GENL_ADMIN_PERM,
4c476991 4558 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4559 },
4560 {
4561 .cmd = NL80211_CMD_GET_INTERFACE,
4562 .doit = nl80211_get_interface,
4563 .dumpit = nl80211_dump_interface,
4564 .policy = nl80211_policy,
4565 /* can be retrieved by unprivileged users */
4c476991 4566 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4567 },
4568 {
4569 .cmd = NL80211_CMD_SET_INTERFACE,
4570 .doit = nl80211_set_interface,
4571 .policy = nl80211_policy,
4572 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4573 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4574 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4575 },
4576 {
4577 .cmd = NL80211_CMD_NEW_INTERFACE,
4578 .doit = nl80211_new_interface,
4579 .policy = nl80211_policy,
4580 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4581 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4582 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4583 },
4584 {
4585 .cmd = NL80211_CMD_DEL_INTERFACE,
4586 .doit = nl80211_del_interface,
4587 .policy = nl80211_policy,
41ade00f 4588 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4589 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4590 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4591 },
4592 {
4593 .cmd = NL80211_CMD_GET_KEY,
4594 .doit = nl80211_get_key,
4595 .policy = nl80211_policy,
4596 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4598 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4599 },
4600 {
4601 .cmd = NL80211_CMD_SET_KEY,
4602 .doit = nl80211_set_key,
4603 .policy = nl80211_policy,
4604 .flags = GENL_ADMIN_PERM,
41265714 4605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4606 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4607 },
4608 {
4609 .cmd = NL80211_CMD_NEW_KEY,
4610 .doit = nl80211_new_key,
4611 .policy = nl80211_policy,
4612 .flags = GENL_ADMIN_PERM,
41265714 4613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4614 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4615 },
4616 {
4617 .cmd = NL80211_CMD_DEL_KEY,
4618 .doit = nl80211_del_key,
4619 .policy = nl80211_policy,
55682965 4620 .flags = GENL_ADMIN_PERM,
41265714 4621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4622 NL80211_FLAG_NEED_RTNL,
55682965 4623 },
ed1b6cc7
JB		 4624 {
4625 .cmd = NL80211_CMD_SET_BEACON,
4626 .policy = nl80211_policy,
4627 .flags = GENL_ADMIN_PERM,
4628 .doit = nl80211_addset_beacon,
4c476991
JB		 4629 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4630 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4631 },
4632 {
4633 .cmd = NL80211_CMD_NEW_BEACON,
4634 .policy = nl80211_policy,
4635 .flags = GENL_ADMIN_PERM,
4636 .doit = nl80211_addset_beacon,
4c476991
JB		 4637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4638 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4639 },
4640 {
4641 .cmd = NL80211_CMD_DEL_BEACON,
4642 .policy = nl80211_policy,
4643 .flags = GENL_ADMIN_PERM,
4644 .doit = nl80211_del_beacon,
4c476991
JB		 4645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4646 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4647 },
5727ef1b
JB		 4648 {
4649 .cmd = NL80211_CMD_GET_STATION,
4650 .doit = nl80211_get_station,
2ec600d6 4651 .dumpit = nl80211_dump_station,
5727ef1b 4652 .policy = nl80211_policy,
4c476991
JB		 4653 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4654 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4655 },
4656 {
4657 .cmd = NL80211_CMD_SET_STATION,
4658 .doit = nl80211_set_station,
4659 .policy = nl80211_policy,
4660 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4661 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4662 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4663 },
4664 {
4665 .cmd = NL80211_CMD_NEW_STATION,
4666 .doit = nl80211_new_station,
4667 .policy = nl80211_policy,
4668 .flags = GENL_ADMIN_PERM,
41265714 4669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4670 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4671 },
4672 {
4673 .cmd = NL80211_CMD_DEL_STATION,
4674 .doit = nl80211_del_station,
4675 .policy = nl80211_policy,
2ec600d6 4676 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4677 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4678 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4679 },
4680 {
4681 .cmd = NL80211_CMD_GET_MPATH,
4682 .doit = nl80211_get_mpath,
4683 .dumpit = nl80211_dump_mpath,
4684 .policy = nl80211_policy,
4685 .flags = GENL_ADMIN_PERM,
41265714 4686 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4687 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4688 },
4689 {
4690 .cmd = NL80211_CMD_SET_MPATH,
4691 .doit = nl80211_set_mpath,
4692 .policy = nl80211_policy,
4693 .flags = GENL_ADMIN_PERM,
41265714 4694 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4695 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4696 },
4697 {
4698 .cmd = NL80211_CMD_NEW_MPATH,
4699 .doit = nl80211_new_mpath,
4700 .policy = nl80211_policy,
4701 .flags = GENL_ADMIN_PERM,
41265714 4702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4703 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4704 },
4705 {
4706 .cmd = NL80211_CMD_DEL_MPATH,
4707 .doit = nl80211_del_mpath,
4708 .policy = nl80211_policy,
9f1ba906 4709 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4710 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4711 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4712 },
4713 {
4714 .cmd = NL80211_CMD_SET_BSS,
4715 .doit = nl80211_set_bss,
4716 .policy = nl80211_policy,
b2e1b302 4717 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4718 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4719 NL80211_FLAG_NEED_RTNL,
b2e1b302 4720 },
f130347c
LR		 4721 {
4722 .cmd = NL80211_CMD_GET_REG,
4723 .doit = nl80211_get_reg,
4724 .policy = nl80211_policy,
4725 /* can be retrieved by unprivileged users */
4726 },
b2e1b302
LR		 4727 {
4728 .cmd = NL80211_CMD_SET_REG,
4729 .doit = nl80211_set_reg,
4730 .policy = nl80211_policy,
4731 .flags = GENL_ADMIN_PERM,
4732 },
4733 {
4734 .cmd = NL80211_CMD_REQ_SET_REG,
4735 .doit = nl80211_req_set_reg,
4736 .policy = nl80211_policy,
93da9cc1 4737 .flags = GENL_ADMIN_PERM,
4738 },
4739 {
4740 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4741 .doit = nl80211_get_mesh_params,
4742 .policy = nl80211_policy,
4743 /* can be retrieved by unprivileged users */
4c476991
JB		 4744 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4745 NL80211_FLAG_NEED_RTNL,
93da9cc1 4746 },
4747 {
4748 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4749 .doit = nl80211_set_mesh_params,
4750 .policy = nl80211_policy,
9aed3cc1 4751 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4752 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4753 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4754 },
2a519311
JB		 4755 {
4756 .cmd = NL80211_CMD_TRIGGER_SCAN,
4757 .doit = nl80211_trigger_scan,
4758 .policy = nl80211_policy,
4759 .flags = GENL_ADMIN_PERM,
41265714 4760 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4761 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4762 },
4763 {
4764 .cmd = NL80211_CMD_GET_SCAN,
4765 .policy = nl80211_policy,
4766 .dumpit = nl80211_dump_scan,
4767 },
636a5d36
JM		 4768 {
4769 .cmd = NL80211_CMD_AUTHENTICATE,
4770 .doit = nl80211_authenticate,
4771 .policy = nl80211_policy,
4772 .flags = GENL_ADMIN_PERM,
41265714 4773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4774 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4775 },
4776 {
4777 .cmd = NL80211_CMD_ASSOCIATE,
4778 .doit = nl80211_associate,
4779 .policy = nl80211_policy,
4780 .flags = GENL_ADMIN_PERM,
41265714 4781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4782 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4783 },
4784 {
4785 .cmd = NL80211_CMD_DEAUTHENTICATE,
4786 .doit = nl80211_deauthenticate,
4787 .policy = nl80211_policy,
4788 .flags = GENL_ADMIN_PERM,
41265714 4789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4790 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4791 },
4792 {
4793 .cmd = NL80211_CMD_DISASSOCIATE,
4794 .doit = nl80211_disassociate,
4795 .policy = nl80211_policy,
4796 .flags = GENL_ADMIN_PERM,
41265714 4797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4798 NL80211_FLAG_NEED_RTNL,
636a5d36 4799 },
04a773ad
JB		 4800 {
4801 .cmd = NL80211_CMD_JOIN_IBSS,
4802 .doit = nl80211_join_ibss,
4803 .policy = nl80211_policy,
4804 .flags = GENL_ADMIN_PERM,
41265714 4805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4806 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4807 },
4808 {
4809 .cmd = NL80211_CMD_LEAVE_IBSS,
4810 .doit = nl80211_leave_ibss,
4811 .policy = nl80211_policy,
4812 .flags = GENL_ADMIN_PERM,
41265714 4813 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4814 NL80211_FLAG_NEED_RTNL,
04a773ad 4815 },
aff89a9b
JB		 4816#ifdef CONFIG_NL80211_TESTMODE
4817 {
4818 .cmd = NL80211_CMD_TESTMODE,
4819 .doit = nl80211_testmode_do,
4820 .policy = nl80211_policy,
4821 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4822 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4823 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4824 },
4825#endif
b23aa676
SO		 4826 {
4827 .cmd = NL80211_CMD_CONNECT,
4828 .doit = nl80211_connect,
4829 .policy = nl80211_policy,
4830 .flags = GENL_ADMIN_PERM,
41265714 4831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4832 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4833 },
4834 {
4835 .cmd = NL80211_CMD_DISCONNECT,
4836 .doit = nl80211_disconnect,
4837 .policy = nl80211_policy,
4838 .flags = GENL_ADMIN_PERM,
41265714 4839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4840 NL80211_FLAG_NEED_RTNL,
b23aa676 4841 },
463d0183
JB		 4842 {
4843 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4844 .doit = nl80211_wiphy_netns,
4845 .policy = nl80211_policy,
4846 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4847 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4848 NL80211_FLAG_NEED_RTNL,
463d0183 4849 },
61fa713c
HS		 4850 {
4851 .cmd = NL80211_CMD_GET_SURVEY,
4852 .policy = nl80211_policy,
4853 .dumpit = nl80211_dump_survey,
4854 },
67fbb16b
SO		 4855 {
4856 .cmd = NL80211_CMD_SET_PMKSA,
4857 .doit = nl80211_setdel_pmksa,
4858 .policy = nl80211_policy,
4859 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4860 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4861 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4862 },
4863 {
4864 .cmd = NL80211_CMD_DEL_PMKSA,
4865 .doit = nl80211_setdel_pmksa,
4866 .policy = nl80211_policy,
4867 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4868 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4869 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4870 },
4871 {
4872 .cmd = NL80211_CMD_FLUSH_PMKSA,
4873 .doit = nl80211_flush_pmksa,
4874 .policy = nl80211_policy,
4875 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4876 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4877 NL80211_FLAG_NEED_RTNL,
67fbb16b 4878 },
9588bbd5
JM		 4879 {
4880 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4881 .doit = nl80211_remain_on_channel,
4882 .policy = nl80211_policy,
4883 .flags = GENL_ADMIN_PERM,
41265714 4884 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4885 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4886 },
4887 {
4888 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4889 .doit = nl80211_cancel_remain_on_channel,
4890 .policy = nl80211_policy,
4891 .flags = GENL_ADMIN_PERM,
41265714 4892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4893 NL80211_FLAG_NEED_RTNL,
9588bbd5 4894 },
13ae75b1
JM		 4895 {
4896 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4897 .doit = nl80211_set_tx_bitrate_mask,
4898 .policy = nl80211_policy,
4899 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4900 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4901 NL80211_FLAG_NEED_RTNL,
13ae75b1 4902 },
026331c4 4903 {
2e161f78
JB		 4904 .cmd = NL80211_CMD_REGISTER_FRAME,
4905 .doit = nl80211_register_mgmt,
026331c4
JM		 4906 .policy = nl80211_policy,
4907 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4908 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4909 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 4910 },
4911 {
2e161f78
JB		 4912 .cmd = NL80211_CMD_FRAME,
4913 .doit = nl80211_tx_mgmt,
026331c4 4914 .policy = nl80211_policy,
f7ca38df
JB		 4915 .flags = GENL_ADMIN_PERM,
4916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4917 NL80211_FLAG_NEED_RTNL,
4918 },
4919 {
4920 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
4921 .doit = nl80211_tx_mgmt_cancel_wait,
4922 .policy = nl80211_policy,
026331c4 4923 .flags = GENL_ADMIN_PERM,
41265714 4924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4925 NL80211_FLAG_NEED_RTNL,
026331c4 4926 },
ffb9eb3d
KV		 4927 {
4928 .cmd = NL80211_CMD_SET_POWER_SAVE,
4929 .doit = nl80211_set_power_save,
4930 .policy = nl80211_policy,
4931 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4932 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4933 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 4934 },
4935 {
4936 .cmd = NL80211_CMD_GET_POWER_SAVE,
4937 .doit = nl80211_get_power_save,
4938 .policy = nl80211_policy,
4939 /* can be retrieved by unprivileged users */
4c476991
JB		 4940 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4941 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 4942 },
d6dc1a38
JO		 4943 {
4944 .cmd = NL80211_CMD_SET_CQM,
4945 .doit = nl80211_set_cqm,
4946 .policy = nl80211_policy,
4947 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4948 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4949 NL80211_FLAG_NEED_RTNL,
d6dc1a38 4950 },
f444de05
JB		 4951 {
4952 .cmd = NL80211_CMD_SET_CHANNEL,
4953 .doit = nl80211_set_channel,
4954 .policy = nl80211_policy,
4955 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4956 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4957 NL80211_FLAG_NEED_RTNL,
f444de05 4958 },
e8347eba
BJ		 4959 {
4960 .cmd = NL80211_CMD_SET_WDS_PEER,
4961 .doit = nl80211_set_wds_peer,
4962 .policy = nl80211_policy,
4963 .flags = GENL_ADMIN_PERM,
43b19952
JB		 4964 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4965 NL80211_FLAG_NEED_RTNL,
e8347eba 4966 },
55682965 4967};
9588bbd5 4968
6039f6d2
JM		 4969static struct genl_multicast_group nl80211_mlme_mcgrp = {
4970 .name = "mlme",
4971};
55682965
JB		 4972
4973/* multicast groups */
4974static struct genl_multicast_group nl80211_config_mcgrp = {
4975 .name = "config",
4976};
2a519311
JB		 4977static struct genl_multicast_group nl80211_scan_mcgrp = {
4978 .name = "scan",
4979};
73d54c9e
LR		 4980static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4981 .name = "regulatory",
4982};
55682965
JB		 4983
4984/* notification functions */
4985
4986void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4987{
4988 struct sk_buff *msg;
4989
fd2120ca 4990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4991 if (!msg)
4992 return;
4993
4994 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4995 nlmsg_free(msg);
4996 return;
4997 }
4998
463d0183
JB		 4999 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5000 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5001}
5002
362a415d
JB		 5003static int nl80211_add_scan_req(struct sk_buff *msg,
5004 struct cfg80211_registered_device *rdev)
5005{
5006 struct cfg80211_scan_request *req = rdev->scan_req;
5007 struct nlattr *nest;
5008 int i;
5009
667503dd
JB		 5010 ASSERT_RDEV_LOCK(rdev);
5011
362a415d
JB		 5012 if (WARN_ON(!req))
5013 return 0;
5014
5015 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5016 if (!nest)
5017 goto nla_put_failure;
5018 for (i = 0; i < req->n_ssids; i++)
5019 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5020 nla_nest_end(msg, nest);
5021
5022 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5023 if (!nest)
5024 goto nla_put_failure;
5025 for (i = 0; i < req->n_channels; i++)
5026 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5027 nla_nest_end(msg, nest);
5028
5029 if (req->ie)
5030 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5031
5032 return 0;
5033 nla_put_failure:
5034 return -ENOBUFS;
5035}
5036
a538e2d5
JB		 5037static int nl80211_send_scan_msg(struct sk_buff *msg,
5038 struct cfg80211_registered_device *rdev,
5039 struct net_device *netdev,
5040 u32 pid, u32 seq, int flags,
5041 u32 cmd)
2a519311
JB		 5042{
5043 void *hdr;
5044
5045 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5046 if (!hdr)
5047 return -1;
5048
b5850a7a 5049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5051
362a415d
JB		 5052 /* ignore errors and send incomplete event anyway */
5053 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5054
5055 return genlmsg_end(msg, hdr);
5056
5057 nla_put_failure:
5058 genlmsg_cancel(msg, hdr);
5059 return -EMSGSIZE;
5060}
5061
a538e2d5
JB		 5062void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5063 struct net_device *netdev)
5064{
5065 struct sk_buff *msg;
5066
5067 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5068 if (!msg)
5069 return;
5070
5071 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5072 NL80211_CMD_TRIGGER_SCAN) < 0) {
5073 nlmsg_free(msg);
5074 return;
5075 }
5076
463d0183
JB		 5077 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5078 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5079}
5080
2a519311
JB		 5081void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5082 struct net_device *netdev)
5083{
5084 struct sk_buff *msg;
5085
fd2120ca 5086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5087 if (!msg)
5088 return;
5089
a538e2d5
JB		 5090 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5091 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5092 nlmsg_free(msg);
5093 return;
5094 }
5095
463d0183
JB		 5096 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5097 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5098}
5099
5100void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5101 struct net_device *netdev)
5102{
5103 struct sk_buff *msg;
5104
fd2120ca 5105 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5106 if (!msg)
5107 return;
5108
a538e2d5
JB		 5109 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5110 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5111 nlmsg_free(msg);
5112 return;
5113 }
5114
463d0183
JB		 5115 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5116 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5117}
5118
73d54c9e
LR		 5119/*
5120 * This can happen on global regulatory changes or device specific settings
5121 * based on custom world regulatory domains.
5122 */
5123void nl80211_send_reg_change_event(struct regulatory_request *request)
5124{
5125 struct sk_buff *msg;
5126 void *hdr;
5127
fd2120ca 5128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5129 if (!msg)
5130 return;
5131
5132 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5133 if (!hdr) {
5134 nlmsg_free(msg);
5135 return;
5136 }
5137
5138 /* Userspace can always count this one always being set */
5139 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5140
5141 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5142 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5143 NL80211_REGDOM_TYPE_WORLD);
5144 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5145 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5146 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5147 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5148 request->intersect)
5149 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5150 NL80211_REGDOM_TYPE_INTERSECTION);
5151 else {
5152 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5153 NL80211_REGDOM_TYPE_COUNTRY);
5154 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5155 }
5156
5157 if (wiphy_idx_valid(request->wiphy_idx))
5158 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5159
5160 if (genlmsg_end(msg, hdr) < 0) {
5161 nlmsg_free(msg);
5162 return;
5163 }
5164
bc43b28c 5165 rcu_read_lock();
463d0183 5166 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5167 GFP_ATOMIC);
5168 rcu_read_unlock();
73d54c9e
LR		 5169
5170 return;
5171
5172nla_put_failure:
5173 genlmsg_cancel(msg, hdr);
5174 nlmsg_free(msg);
5175}
5176
6039f6d2
JM		 5177static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5178 struct net_device *netdev,
5179 const u8 *buf, size_t len,
e6d6e342 5180 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5181{
5182 struct sk_buff *msg;
5183 void *hdr;
5184
e6d6e342 5185 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5186 if (!msg)
5187 return;
5188
5189 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5190 if (!hdr) {
5191 nlmsg_free(msg);
5192 return;
5193 }
5194
5195 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5196 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5197 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5198
5199 if (genlmsg_end(msg, hdr) < 0) {
5200 nlmsg_free(msg);
5201 return;
5202 }
5203
463d0183
JB		 5204 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5205 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5206 return;
5207
5208 nla_put_failure:
5209 genlmsg_cancel(msg, hdr);
5210 nlmsg_free(msg);
5211}
5212
5213void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5214 struct net_device *netdev, const u8 *buf,
5215 size_t len, gfp_t gfp)
6039f6d2
JM		 5216{
5217 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5218 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5219}
5220
5221void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5222 struct net_device *netdev, const u8 *buf,
e6d6e342 5223 size_t len, gfp_t gfp)
6039f6d2 5224{
e6d6e342
JB		 5225 nl80211_send_mlme_event(rdev, netdev, buf, len,
5226 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5227}
5228
53b46b84 5229void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5230 struct net_device *netdev, const u8 *buf,
5231 size_t len, gfp_t gfp)
6039f6d2
JM		 5232{
5233 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5234 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5235}
5236
53b46b84
JM		 5237void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5238 struct net_device *netdev, const u8 *buf,
e6d6e342 5239 size_t len, gfp_t gfp)
6039f6d2
JM		 5240{
5241 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5242 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5243}
5244
1b06bb40
LR		 5245static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5246 struct net_device *netdev, int cmd,
e6d6e342 5247 const u8 *addr, gfp_t gfp)
1965c853
JM		 5248{
5249 struct sk_buff *msg;
5250 void *hdr;
5251
e6d6e342 5252 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5253 if (!msg)
5254 return;
5255
5256 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5257 if (!hdr) {
5258 nlmsg_free(msg);
5259 return;
5260 }
5261
5262 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5264 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5265 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5266
5267 if (genlmsg_end(msg, hdr) < 0) {
5268 nlmsg_free(msg);
5269 return;
5270 }
5271
463d0183
JB		 5272 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5273 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5274 return;
5275
5276 nla_put_failure:
5277 genlmsg_cancel(msg, hdr);
5278 nlmsg_free(msg);
5279}
5280
5281void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5282 struct net_device *netdev, const u8 *addr,
5283 gfp_t gfp)
1965c853
JM		 5284{
5285 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5286 addr, gfp);
1965c853
JM		 5287}
5288
5289void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5290 struct net_device *netdev, const u8 *addr,
5291 gfp_t gfp)
1965c853 5292{
e6d6e342
JB		 5293 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5294 addr, gfp);
1965c853
JM		 5295}
5296
b23aa676
SO		 5297void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5298 struct net_device *netdev, const u8 *bssid,
5299 const u8 *req_ie, size_t req_ie_len,
5300 const u8 *resp_ie, size_t resp_ie_len,
5301 u16 status, gfp_t gfp)
5302{
5303 struct sk_buff *msg;
5304 void *hdr;
5305
5306 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5307 if (!msg)
5308 return;
5309
5310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5311 if (!hdr) {
5312 nlmsg_free(msg);
5313 return;
5314 }
5315
5316 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5317 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5318 if (bssid)
5319 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5320 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5321 if (req_ie)
5322 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5323 if (resp_ie)
5324 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5325
5326 if (genlmsg_end(msg, hdr) < 0) {
5327 nlmsg_free(msg);
5328 return;
5329 }
5330
463d0183
JB		 5331 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5332 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5333 return;
5334
5335 nla_put_failure:
5336 genlmsg_cancel(msg, hdr);
5337 nlmsg_free(msg);
5338
5339}
5340
5341void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5342 struct net_device *netdev, const u8 *bssid,
5343 const u8 *req_ie, size_t req_ie_len,
5344 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5345{
5346 struct sk_buff *msg;
5347 void *hdr;
5348
5349 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5350 if (!msg)
5351 return;
5352
5353 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5354 if (!hdr) {
5355 nlmsg_free(msg);
5356 return;
5357 }
5358
5359 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5360 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5361 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5362 if (req_ie)
5363 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5364 if (resp_ie)
5365 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5366
5367 if (genlmsg_end(msg, hdr) < 0) {
5368 nlmsg_free(msg);
5369 return;
5370 }
5371
463d0183
JB		 5372 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5373 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5374 return;
5375
5376 nla_put_failure:
5377 genlmsg_cancel(msg, hdr);
5378 nlmsg_free(msg);
5379
5380}
5381
5382void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5383 struct net_device *netdev, u16 reason,
667503dd 5384 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5385{
5386 struct sk_buff *msg;
5387 void *hdr;
5388
667503dd 5389 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5390 if (!msg)
5391 return;
5392
5393 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5394 if (!hdr) {
5395 nlmsg_free(msg);
5396 return;
5397 }
5398
5399 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5400 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5401 if (from_ap && reason)
5402 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5403 if (from_ap)
5404 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5405 if (ie)
5406 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5407
5408 if (genlmsg_end(msg, hdr) < 0) {
5409 nlmsg_free(msg);
5410 return;
5411 }
5412
463d0183
JB		 5413 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5414 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5415 return;
5416
5417 nla_put_failure:
5418 genlmsg_cancel(msg, hdr);
5419 nlmsg_free(msg);
5420
5421}
5422
04a773ad
JB		 5423void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5424 struct net_device *netdev, const u8 *bssid,
5425 gfp_t gfp)
5426{
5427 struct sk_buff *msg;
5428 void *hdr;
5429
fd2120ca 5430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5431 if (!msg)
5432 return;
5433
5434 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5435 if (!hdr) {
5436 nlmsg_free(msg);
5437 return;
5438 }
5439
5440 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5441 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5442 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5443
5444 if (genlmsg_end(msg, hdr) < 0) {
5445 nlmsg_free(msg);
5446 return;
5447 }
5448
463d0183
JB		 5449 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5450 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5451 return;
5452
5453 nla_put_failure:
5454 genlmsg_cancel(msg, hdr);
5455 nlmsg_free(msg);
5456}
5457
a3b8b056
JM		 5458void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5459 struct net_device *netdev, const u8 *addr,
5460 enum nl80211_key_type key_type, int key_id,
e6d6e342 5461 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5462{
5463 struct sk_buff *msg;
5464 void *hdr;
5465
e6d6e342 5466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5467 if (!msg)
5468 return;
5469
5470 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5471 if (!hdr) {
5472 nlmsg_free(msg);
5473 return;
5474 }
5475
5476 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5477 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5478 if (addr)
5479 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5480 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5481 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5482 if (tsc)
5483 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5484
5485 if (genlmsg_end(msg, hdr) < 0) {
5486 nlmsg_free(msg);
5487 return;
5488 }
5489
463d0183
JB		 5490 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5491 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5492 return;
5493
5494 nla_put_failure:
5495 genlmsg_cancel(msg, hdr);
5496 nlmsg_free(msg);
5497}
5498
6bad8766
LR		 5499void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5500 struct ieee80211_channel *channel_before,
5501 struct ieee80211_channel *channel_after)
5502{
5503 struct sk_buff *msg;
5504 void *hdr;
5505 struct nlattr *nl_freq;
5506
fd2120ca 5507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5508 if (!msg)
5509 return;
5510
5511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5512 if (!hdr) {
5513 nlmsg_free(msg);
5514 return;
5515 }
5516
5517 /*
5518 * Since we are applying the beacon hint to a wiphy we know its
5519 * wiphy_idx is valid
5520 */
5521 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5522
5523 /* Before */
5524 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5525 if (!nl_freq)
5526 goto nla_put_failure;
5527 if (nl80211_msg_put_channel(msg, channel_before))
5528 goto nla_put_failure;
5529 nla_nest_end(msg, nl_freq);
5530
5531 /* After */
5532 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5533 if (!nl_freq)
5534 goto nla_put_failure;
5535 if (nl80211_msg_put_channel(msg, channel_after))
5536 goto nla_put_failure;
5537 nla_nest_end(msg, nl_freq);
5538
5539 if (genlmsg_end(msg, hdr) < 0) {
5540 nlmsg_free(msg);
5541 return;
5542 }
5543
463d0183
JB		 5544 rcu_read_lock();
5545 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5546 GFP_ATOMIC);
5547 rcu_read_unlock();
6bad8766
LR		 5548
5549 return;
5550
5551nla_put_failure:
5552 genlmsg_cancel(msg, hdr);
5553 nlmsg_free(msg);
5554}
5555
9588bbd5
JM		 5556static void nl80211_send_remain_on_chan_event(
5557 int cmd, struct cfg80211_registered_device *rdev,
5558 struct net_device *netdev, u64 cookie,
5559 struct ieee80211_channel *chan,
5560 enum nl80211_channel_type channel_type,
5561 unsigned int duration, gfp_t gfp)
5562{
5563 struct sk_buff *msg;
5564 void *hdr;
5565
5566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5567 if (!msg)
5568 return;
5569
5570 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5571 if (!hdr) {
5572 nlmsg_free(msg);
5573 return;
5574 }
5575
5576 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5578 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5579 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5580 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5581
5582 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5583 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5584
5585 if (genlmsg_end(msg, hdr) < 0) {
5586 nlmsg_free(msg);
5587 return;
5588 }
5589
5590 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5591 nl80211_mlme_mcgrp.id, gfp);
5592 return;
5593
5594 nla_put_failure:
5595 genlmsg_cancel(msg, hdr);
5596 nlmsg_free(msg);
5597}
5598
5599void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5600 struct net_device *netdev, u64 cookie,
5601 struct ieee80211_channel *chan,
5602 enum nl80211_channel_type channel_type,
5603 unsigned int duration, gfp_t gfp)
5604{
5605 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5606 rdev, netdev, cookie, chan,
5607 channel_type, duration, gfp);
5608}
5609
5610void nl80211_send_remain_on_channel_cancel(
5611 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5612 u64 cookie, struct ieee80211_channel *chan,
5613 enum nl80211_channel_type channel_type, gfp_t gfp)
5614{
5615 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5616 rdev, netdev, cookie, chan,
5617 channel_type, 0, gfp);
5618}
5619
98b62183
JB		 5620void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5621 struct net_device *dev, const u8 *mac_addr,
5622 struct station_info *sinfo, gfp_t gfp)
5623{
5624 struct sk_buff *msg;
5625
5626 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5627 if (!msg)
5628 return;
5629
5630 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5631 nlmsg_free(msg);
5632 return;
5633 }
5634
5635 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5636 nl80211_mlme_mcgrp.id, gfp);
5637}
5638
2e161f78
JB		 5639int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5640 struct net_device *netdev, u32 nlpid,
5641 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5642{
5643 struct sk_buff *msg;
5644 void *hdr;
5645 int err;
5646
5647 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5648 if (!msg)
5649 return -ENOMEM;
5650
2e161f78 5651 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5652 if (!hdr) {
5653 nlmsg_free(msg);
5654 return -ENOMEM;
5655 }
5656
5657 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5658 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5659 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5660 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5661
5662 err = genlmsg_end(msg, hdr);
5663 if (err < 0) {
5664 nlmsg_free(msg);
5665 return err;
5666 }
5667
5668 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5669 if (err < 0)
5670 return err;
5671 return 0;
5672
5673 nla_put_failure:
5674 genlmsg_cancel(msg, hdr);
5675 nlmsg_free(msg);
5676 return -ENOBUFS;
5677}
5678
2e161f78
JB		 5679void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5680 struct net_device *netdev, u64 cookie,
5681 const u8 *buf, size_t len, bool ack,
5682 gfp_t gfp)
026331c4
JM		 5683{
5684 struct sk_buff *msg;
5685 void *hdr;
5686
5687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5688 if (!msg)
5689 return;
5690
2e161f78 5691 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5692 if (!hdr) {
5693 nlmsg_free(msg);
5694 return;
5695 }
5696
5697 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5698 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5699 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5700 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5701 if (ack)
5702 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5703
5704 if (genlmsg_end(msg, hdr) < 0) {
5705 nlmsg_free(msg);
5706 return;
5707 }
5708
5709 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5710 return;
5711
5712 nla_put_failure:
5713 genlmsg_cancel(msg, hdr);
5714 nlmsg_free(msg);
5715}
5716
d6dc1a38
JO		 5717void
5718nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5719 struct net_device *netdev,
5720 enum nl80211_cqm_rssi_threshold_event rssi_event,
5721 gfp_t gfp)
5722{
5723 struct sk_buff *msg;
5724 struct nlattr *pinfoattr;
5725 void *hdr;
5726
5727 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5728 if (!msg)
5729 return;
5730
5731 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5732 if (!hdr) {
5733 nlmsg_free(msg);
5734 return;
5735 }
5736
5737 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5738 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5739
5740 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5741 if (!pinfoattr)
5742 goto nla_put_failure;
5743
5744 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5745 rssi_event);
5746
5747 nla_nest_end(msg, pinfoattr);
5748
5749 if (genlmsg_end(msg, hdr) < 0) {
5750 nlmsg_free(msg);
5751 return;
5752 }
5753
5754 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5755 nl80211_mlme_mcgrp.id, gfp);
5756 return;
5757
5758 nla_put_failure:
5759 genlmsg_cancel(msg, hdr);
5760 nlmsg_free(msg);
5761}
5762
c063dbf5
JB		 5763void
5764nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5765 struct net_device *netdev, const u8 *peer,
5766 u32 num_packets, gfp_t gfp)
5767{
5768 struct sk_buff *msg;
5769 struct nlattr *pinfoattr;
5770 void *hdr;
5771
5772 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5773 if (!msg)
5774 return;
5775
5776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5777 if (!hdr) {
5778 nlmsg_free(msg);
5779 return;
5780 }
5781
5782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5783 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5784 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5785
5786 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5787 if (!pinfoattr)
5788 goto nla_put_failure;
5789
5790 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5791
5792 nla_nest_end(msg, pinfoattr);
5793
5794 if (genlmsg_end(msg, hdr) < 0) {
5795 nlmsg_free(msg);
5796 return;
5797 }
5798
5799 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5800 nl80211_mlme_mcgrp.id, gfp);
5801 return;
5802
5803 nla_put_failure:
5804 genlmsg_cancel(msg, hdr);
5805 nlmsg_free(msg);
5806}
5807
026331c4
JM		 5808static int nl80211_netlink_notify(struct notifier_block * nb,
5809 unsigned long state,
5810 void *_notify)
5811{
5812 struct netlink_notify *notify = _notify;
5813 struct cfg80211_registered_device *rdev;
5814 struct wireless_dev *wdev;
5815
5816 if (state != NETLINK_URELEASE)
5817 return NOTIFY_DONE;
5818
5819 rcu_read_lock();
5820
5821 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5822 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5823 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5824
5825 rcu_read_unlock();
5826
5827 return NOTIFY_DONE;
5828}
5829
5830static struct notifier_block nl80211_netlink_notifier = {
5831 .notifier_call = nl80211_netlink_notify,
5832};
5833
55682965
JB		 5834/* initialisation/exit functions */
5835
5836int nl80211_init(void)
5837{
0d63cbb5 5838 int err;
55682965 5839
0d63cbb5
MM		 5840 err = genl_register_family_with_ops(&nl80211_fam,
5841 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5842 if (err)
5843 return err;
5844
55682965
JB		 5845 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5846 if (err)
5847 goto err_out;
5848
2a519311
JB		 5849 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5850 if (err)
5851 goto err_out;
5852
73d54c9e
LR		 5853 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5854 if (err)
5855 goto err_out;
5856
6039f6d2
JM		 5857 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5858 if (err)
5859 goto err_out;
5860
aff89a9b
JB		 5861#ifdef CONFIG_NL80211_TESTMODE
5862 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5863 if (err)
5864 goto err_out;
5865#endif
5866
026331c4
JM		 5867 err = netlink_register_notifier(&nl80211_netlink_notifier);
5868 if (err)
5869 goto err_out;
5870
55682965
JB		 5871 return 0;
5872 err_out:
5873 genl_unregister_family(&nl80211_fam);
5874 return err;
5875}
5876
5877void nl80211_exit(void)
5878{
026331c4 5879 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 5880 genl_unregister_family(&nl80211_fam);
5881}
Linux kernel - Deliverables
This page took 0.77495 seconds and 5 git commands to generate.