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