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mac80211: Fix compilation error when mesh is disabled
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
36aedc90 124
93da9cc1 125 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
126
36aedc90
JM		 127 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
128 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 129
130 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
131 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
132 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 133 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
134 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 135
136 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
137 .len = IEEE80211_MAX_SSID_LEN },
138 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
139 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 140 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 141 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 142 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 143 [NL80211_ATTR_STA_FLAGS2] = {
144 .len = sizeof(struct nl80211_sta_flag_update),
145 },
3f77316c 146 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 147 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
148 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 149 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
150 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
151 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 152 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 153 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 154 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
155 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 156 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
157 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 158 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 159 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
160 .len = IEEE80211_MAX_DATA_LEN },
161 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 162 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 163 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 164 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 165 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 166 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
167 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 168 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 169 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
170 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 171 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 172 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
55682965
JB		 173};
174
e31b8213 175/* policy for the key attributes */
b54452b0 176static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 177 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 178 [NL80211_KEY_IDX] = { .type = NLA_U8 },
179 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
180 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
181 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
182 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 183 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
b9454e83
JB		 184};
185
a043897a
HS		 186/* ifidx get helper */
187static int nl80211_get_ifidx(struct netlink_callback *cb)
188{
189 int res;
190
191 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
192 nl80211_fam.attrbuf, nl80211_fam.maxattr,
193 nl80211_policy);
194 if (res)
195 return res;
196
197 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
198 return -EINVAL;
199
200 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
201 if (!res)
202 return -EINVAL;
203 return res;
204}
205
67748893
JB		 206static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
207 struct netlink_callback *cb,
208 struct cfg80211_registered_device **rdev,
209 struct net_device **dev)
210{
211 int ifidx = cb->args[0];
212 int err;
213
214 if (!ifidx)
215 ifidx = nl80211_get_ifidx(cb);
216 if (ifidx < 0)
217 return ifidx;
218
219 cb->args[0] = ifidx;
220
221 rtnl_lock();
222
223 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
224 if (!*dev) {
225 err = -ENODEV;
226 goto out_rtnl;
227 }
228
229 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 230 if (IS_ERR(*rdev)) {
231 err = PTR_ERR(*rdev);
67748893
JB		 232 goto out_rtnl;
233 }
234
235 return 0;
236 out_rtnl:
237 rtnl_unlock();
238 return err;
239}
240
241static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
242{
243 cfg80211_unlock_rdev(rdev);
244 rtnl_unlock();
245}
246
f4a11bb0
JB		 247/* IE validation */
248static bool is_valid_ie_attr(const struct nlattr *attr)
249{
250 const u8 *pos;
251 int len;
252
253 if (!attr)
254 return true;
255
256 pos = nla_data(attr);
257 len = nla_len(attr);
258
259 while (len) {
260 u8 elemlen;
261
262 if (len < 2)
263 return false;
264 len -= 2;
265
266 elemlen = pos[1];
267 if (elemlen > len)
268 return false;
269
270 len -= elemlen;
271 pos += 2 + elemlen;
272 }
273
274 return true;
275}
276
55682965
JB		 277/* message building helper */
278static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
279 int flags, u8 cmd)
280{
281 /* since there is no private header just add the generic one */
282 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
283}
284
5dab3b8a
LR		 285static int nl80211_msg_put_channel(struct sk_buff *msg,
286 struct ieee80211_channel *chan)
287{
288 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
289 chan->center_freq);
290
291 if (chan->flags & IEEE80211_CHAN_DISABLED)
292 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
293 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
294 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
295 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
296 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
297 if (chan->flags & IEEE80211_CHAN_RADAR)
298 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
299
300 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
301 DBM_TO_MBM(chan->max_power));
302
303 return 0;
304
305 nla_put_failure:
306 return -ENOBUFS;
307}
308
55682965
JB		 309/* netlink command implementations */
310
b9454e83
JB		 311struct key_parse {
312 struct key_params p;
313 int idx;
e31b8213 314 int type;
b9454e83
JB		 315 bool def, defmgmt;
316};
317
318static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
319{
320 struct nlattr *tb[NL80211_KEY_MAX + 1];
321 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
322 nl80211_key_policy);
323 if (err)
324 return err;
325
326 k->def = !!tb[NL80211_KEY_DEFAULT];
327 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
328
329 if (tb[NL80211_KEY_IDX])
330 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
331
332 if (tb[NL80211_KEY_DATA]) {
333 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
334 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
335 }
336
337 if (tb[NL80211_KEY_SEQ]) {
338 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
339 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
340 }
341
342 if (tb[NL80211_KEY_CIPHER])
343 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
344
e31b8213
JB		 345 if (tb[NL80211_KEY_TYPE]) {
346 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
347 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
348 return -EINVAL;
349 }
350
b9454e83
JB		 351 return 0;
352}
353
354static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
355{
356 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
357 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
358 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
359 }
360
361 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
362 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
363 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
364 }
365
366 if (info->attrs[NL80211_ATTR_KEY_IDX])
367 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
368
369 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
370 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
371
372 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
373 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
374
e31b8213
JB		 375 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
376 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
377 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
378 return -EINVAL;
379 }
380
b9454e83
JB		 381 return 0;
382}
383
384static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
385{
386 int err;
387
388 memset(k, 0, sizeof(*k));
389 k->idx = -1;
e31b8213 390 k->type = -1;
b9454e83
JB		 391
392 if (info->attrs[NL80211_ATTR_KEY])
393 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
394 else
395 err = nl80211_parse_key_old(info, k);
396
397 if (err)
398 return err;
399
400 if (k->def && k->defmgmt)
401 return -EINVAL;
402
403 if (k->idx != -1) {
404 if (k->defmgmt) {
405 if (k->idx < 4 || k->idx > 5)
406 return -EINVAL;
407 } else if (k->def) {
408 if (k->idx < 0 || k->idx > 3)
409 return -EINVAL;
410 } else {
411 if (k->idx < 0 || k->idx > 5)
412 return -EINVAL;
413 }
414 }
415
416 return 0;
417}
418
fffd0934
JB		 419static struct cfg80211_cached_keys *
420nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
421 struct nlattr *keys)
422{
423 struct key_parse parse;
424 struct nlattr *key;
425 struct cfg80211_cached_keys *result;
426 int rem, err, def = 0;
427
428 result = kzalloc(sizeof(*result), GFP_KERNEL);
429 if (!result)
430 return ERR_PTR(-ENOMEM);
431
432 result->def = -1;
433 result->defmgmt = -1;
434
435 nla_for_each_nested(key, keys, rem) {
436 memset(&parse, 0, sizeof(parse));
437 parse.idx = -1;
438
439 err = nl80211_parse_key_new(key, &parse);
440 if (err)
441 goto error;
442 err = -EINVAL;
443 if (!parse.p.key)
444 goto error;
445 if (parse.idx < 0 || parse.idx > 4)
446 goto error;
447 if (parse.def) {
448 if (def)
449 goto error;
450 def = 1;
451 result->def = parse.idx;
452 } else if (parse.defmgmt)
453 goto error;
454 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 455 parse.idx, false, NULL);
fffd0934
JB		 456 if (err)
457 goto error;
458 result->params[parse.idx].cipher = parse.p.cipher;
459 result->params[parse.idx].key_len = parse.p.key_len;
460 result->params[parse.idx].key = result->data[parse.idx];
461 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
462 }
463
464 return result;
465 error:
466 kfree(result);
467 return ERR_PTR(err);
468}
469
470static int nl80211_key_allowed(struct wireless_dev *wdev)
471{
472 ASSERT_WDEV_LOCK(wdev);
473
fffd0934
JB		 474 switch (wdev->iftype) {
475 case NL80211_IFTYPE_AP:
476 case NL80211_IFTYPE_AP_VLAN:
074ac8df 477 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 478 break;
479 case NL80211_IFTYPE_ADHOC:
480 if (!wdev->current_bss)
481 return -ENOLINK;
482 break;
483 case NL80211_IFTYPE_STATION:
074ac8df 484 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 485 if (wdev->sme_state != CFG80211_SME_CONNECTED)
486 return -ENOLINK;
487 break;
488 default:
489 return -EINVAL;
490 }
491
492 return 0;
493}
494
55682965
JB		 495static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
496 struct cfg80211_registered_device *dev)
497{
498 void *hdr;
ee688b00
JB		 499 struct nlattr *nl_bands, *nl_band;
500 struct nlattr *nl_freqs, *nl_freq;
501 struct nlattr *nl_rates, *nl_rate;
f59ac048 502 struct nlattr *nl_modes;
8fdc621d 503 struct nlattr *nl_cmds;
ee688b00
JB		 504 enum ieee80211_band band;
505 struct ieee80211_channel *chan;
506 struct ieee80211_rate *rate;
507 int i;
f59ac048 508 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 509 const struct ieee80211_txrx_stypes *mgmt_stypes =
510 dev->wiphy.mgmt_stypes;
55682965
JB		 511
512 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
513 if (!hdr)
514 return -1;
515
b5850a7a 516 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 517 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 518
f5ea9120
JB		 519 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
520 cfg80211_rdev_list_generation);
521
b9a5f8ca
JM		 522 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
523 dev->wiphy.retry_short);
524 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
525 dev->wiphy.retry_long);
526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
527 dev->wiphy.frag_threshold);
528 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
529 dev->wiphy.rts_threshold);
81077e82
LT		 530 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
531 dev->wiphy.coverage_class);
2a519311
JB		 532 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
533 dev->wiphy.max_scan_ssids);
18a83659
JB		 534 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
535 dev->wiphy.max_scan_ie_len);
ee688b00 536
e31b8213
JB		 537 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
538 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
539
25e47c18
JB		 540 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
541 sizeof(u32) * dev->wiphy.n_cipher_suites,
542 dev->wiphy.cipher_suites);
543
67fbb16b
SO		 544 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
545 dev->wiphy.max_num_pmkids);
546
c0692b8f
JB		 547 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
548 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
549
afe0cbf8
BR		 550 if (dev->ops->get_antenna) {
551 u32 tx_ant = 0, rx_ant = 0;
552 int res;
553 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
554 if (!res) {
555 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
557 }
558 }
559
f59ac048
LR		 560 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
561 if (!nl_modes)
562 goto nla_put_failure;
563
564 i = 0;
565 while (ifmodes) {
566 if (ifmodes & 1)
567 NLA_PUT_FLAG(msg, i);
568 ifmodes >>= 1;
569 i++;
570 }
571
572 nla_nest_end(msg, nl_modes);
573
ee688b00
JB		 574 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
575 if (!nl_bands)
576 goto nla_put_failure;
577
578 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
579 if (!dev->wiphy.bands[band])
580 continue;
581
582 nl_band = nla_nest_start(msg, band);
583 if (!nl_band)
584 goto nla_put_failure;
585
d51626df
JB		 586 /* add HT info */
587 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
588 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
589 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
590 &dev->wiphy.bands[band]->ht_cap.mcs);
591 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
592 dev->wiphy.bands[band]->ht_cap.cap);
593 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
594 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
595 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
596 dev->wiphy.bands[band]->ht_cap.ampdu_density);
597 }
598
ee688b00
JB		 599 /* add frequencies */
600 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
601 if (!nl_freqs)
602 goto nla_put_failure;
603
604 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
605 nl_freq = nla_nest_start(msg, i);
606 if (!nl_freq)
607 goto nla_put_failure;
608
609 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 610
611 if (nl80211_msg_put_channel(msg, chan))
612 goto nla_put_failure;
e2f367f2 613
ee688b00
JB		 614 nla_nest_end(msg, nl_freq);
615 }
616
617 nla_nest_end(msg, nl_freqs);
618
619 /* add bitrates */
620 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
621 if (!nl_rates)
622 goto nla_put_failure;
623
624 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
625 nl_rate = nla_nest_start(msg, i);
626 if (!nl_rate)
627 goto nla_put_failure;
628
629 rate = &dev->wiphy.bands[band]->bitrates[i];
630 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
631 rate->bitrate);
632 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
633 NLA_PUT_FLAG(msg,
634 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
635
636 nla_nest_end(msg, nl_rate);
637 }
638
639 nla_nest_end(msg, nl_rates);
640
641 nla_nest_end(msg, nl_band);
642 }
643 nla_nest_end(msg, nl_bands);
644
8fdc621d
JB		 645 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
646 if (!nl_cmds)
647 goto nla_put_failure;
648
649 i = 0;
650#define CMD(op, n) \
651 do { \
652 if (dev->ops->op) { \
653 i++; \
654 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
655 } \
656 } while (0)
657
658 CMD(add_virtual_intf, NEW_INTERFACE);
659 CMD(change_virtual_intf, SET_INTERFACE);
660 CMD(add_key, NEW_KEY);
661 CMD(add_beacon, NEW_BEACON);
662 CMD(add_station, NEW_STATION);
663 CMD(add_mpath, NEW_MPATH);
29cbe68c 664 CMD(update_mesh_params, SET_MESH_PARAMS);
8fdc621d 665 CMD(change_bss, SET_BSS);
636a5d36
JM		 666 CMD(auth, AUTHENTICATE);
667 CMD(assoc, ASSOCIATE);
668 CMD(deauth, DEAUTHENTICATE);
669 CMD(disassoc, DISASSOCIATE);
04a773ad 670 CMD(join_ibss, JOIN_IBSS);
29cbe68c 671 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 672 CMD(set_pmksa, SET_PMKSA);
673 CMD(del_pmksa, DEL_PMKSA);
674 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 675 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 676 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 677 CMD(mgmt_tx, FRAME);
f7ca38df 678 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 679 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 680 i++;
681 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
682 }
f444de05 683 CMD(set_channel, SET_CHANNEL);
e8347eba 684 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 685
686#undef CMD
b23aa676 687
6829c878 688 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 689 i++;
690 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
691 }
692
6829c878 693 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 694 i++;
695 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
696 }
697
8fdc621d
JB		 698 nla_nest_end(msg, nl_cmds);
699
f7ca38df
JB		 700 /* for now at least assume all drivers have it */
701 if (dev->ops->mgmt_tx)
702 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
703
2e161f78
JB		 704 if (mgmt_stypes) {
705 u16 stypes;
706 struct nlattr *nl_ftypes, *nl_ifs;
707 enum nl80211_iftype ift;
708
709 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
710 if (!nl_ifs)
711 goto nla_put_failure;
712
713 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
714 nl_ftypes = nla_nest_start(msg, ift);
715 if (!nl_ftypes)
716 goto nla_put_failure;
717 i = 0;
718 stypes = mgmt_stypes[ift].tx;
719 while (stypes) {
720 if (stypes & 1)
721 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
722 (i << 4) | IEEE80211_FTYPE_MGMT);
723 stypes >>= 1;
724 i++;
725 }
726 nla_nest_end(msg, nl_ftypes);
727 }
728
74b70a4e
JB		 729 nla_nest_end(msg, nl_ifs);
730
2e161f78
JB		 731 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
732 if (!nl_ifs)
733 goto nla_put_failure;
734
735 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
736 nl_ftypes = nla_nest_start(msg, ift);
737 if (!nl_ftypes)
738 goto nla_put_failure;
739 i = 0;
740 stypes = mgmt_stypes[ift].rx;
741 while (stypes) {
742 if (stypes & 1)
743 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
744 (i << 4) | IEEE80211_FTYPE_MGMT);
745 stypes >>= 1;
746 i++;
747 }
748 nla_nest_end(msg, nl_ftypes);
749 }
750 nla_nest_end(msg, nl_ifs);
751 }
752
55682965
JB		 753 return genlmsg_end(msg, hdr);
754
755 nla_put_failure:
bc3ed28c
TG		 756 genlmsg_cancel(msg, hdr);
757 return -EMSGSIZE;
55682965
JB		 758}
759
760static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
761{
762 int idx = 0;
763 int start = cb->args[0];
764 struct cfg80211_registered_device *dev;
765
a1794390 766 mutex_lock(&cfg80211_mutex);
79c97e97 767 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 768 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
769 continue;
b4637271 770 if (++idx <= start)
55682965
JB		 771 continue;
772 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
773 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 774 dev) < 0) {
775 idx--;
55682965 776 break;
b4637271 777 }
55682965 778 }
a1794390 779 mutex_unlock(&cfg80211_mutex);
55682965
JB		 780
781 cb->args[0] = idx;
782
783 return skb->len;
784}
785
786static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
787{
788 struct sk_buff *msg;
4c476991 789 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 790
fd2120ca 791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 792 if (!msg)
4c476991 793 return -ENOMEM;
55682965 794
4c476991
JB		 795 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
796 nlmsg_free(msg);
797 return -ENOBUFS;
798 }
55682965 799
134e6375 800 return genlmsg_reply(msg, info);
55682965
JB		 801}
802
31888487
JM		 803static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
804 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
805 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
806 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
807 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
808 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
809};
810
811static int parse_txq_params(struct nlattr *tb[],
812 struct ieee80211_txq_params *txq_params)
813{
814 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
815 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
816 !tb[NL80211_TXQ_ATTR_AIFS])
817 return -EINVAL;
818
819 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
820 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
821 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
822 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
823 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
824
825 return 0;
826}
827
f444de05
JB		 828static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
829{
830 /*
831 * You can only set the channel explicitly for AP, mesh
832 * and WDS type interfaces; all others have their channel
833 * managed via their respective "establish a connection"
834 * command (connect, join, ...)
835 *
836 * Monitors are special as they are normally slaved to
837 * whatever else is going on, so they behave as though
838 * you tried setting the wiphy channel itself.
839 */
840 return !wdev ||
841 wdev->iftype == NL80211_IFTYPE_AP ||
842 wdev->iftype == NL80211_IFTYPE_WDS ||
843 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 844 wdev->iftype == NL80211_IFTYPE_MONITOR ||
845 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 846}
847
848static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
849 struct wireless_dev *wdev,
850 struct genl_info *info)
851{
852 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
853 u32 freq;
854 int result;
855
856 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
857 return -EINVAL;
858
859 if (!nl80211_can_set_dev_channel(wdev))
860 return -EOPNOTSUPP;
861
862 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
863 channel_type = nla_get_u32(info->attrs[
864 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
865 if (channel_type != NL80211_CHAN_NO_HT &&
866 channel_type != NL80211_CHAN_HT20 &&
867 channel_type != NL80211_CHAN_HT40PLUS &&
868 channel_type != NL80211_CHAN_HT40MINUS)
869 return -EINVAL;
870 }
871
872 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
873
874 mutex_lock(&rdev->devlist_mtx);
875 if (wdev) {
876 wdev_lock(wdev);
877 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
878 wdev_unlock(wdev);
879 } else {
880 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
881 }
882 mutex_unlock(&rdev->devlist_mtx);
883
884 return result;
885}
886
887static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
888{
4c476991
JB		 889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
890 struct net_device *netdev = info->user_ptr[1];
f444de05 891
4c476991 892 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 893}
894
e8347eba
BJ		 895static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
896{
43b19952
JB		 897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
898 struct net_device *dev = info->user_ptr[1];
899 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 900 const u8 *bssid;
e8347eba
BJ		 901
902 if (!info->attrs[NL80211_ATTR_MAC])
903 return -EINVAL;
904
43b19952
JB		 905 if (netif_running(dev))
906 return -EBUSY;
e8347eba 907
43b19952
JB		 908 if (!rdev->ops->set_wds_peer)
909 return -EOPNOTSUPP;
e8347eba 910
43b19952
JB		 911 if (wdev->iftype != NL80211_IFTYPE_WDS)
912 return -EOPNOTSUPP;
e8347eba
BJ		 913
914 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 915 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 916}
917
918
55682965
JB		 919static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
920{
921 struct cfg80211_registered_device *rdev;
f444de05
JB		 922 struct net_device *netdev = NULL;
923 struct wireless_dev *wdev;
a1e567c8 924 int result = 0, rem_txq_params = 0;
31888487 925 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 926 u32 changed;
927 u8 retry_short = 0, retry_long = 0;
928 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 929 u8 coverage_class = 0;
55682965 930
f444de05
JB		 931 /*
932 * Try to find the wiphy and netdev. Normally this
933 * function shouldn't need the netdev, but this is
934 * done for backward compatibility -- previously
935 * setting the channel was done per wiphy, but now
936 * it is per netdev. Previous userland like hostapd
937 * also passed a netdev to set_wiphy, so that it is
938 * possible to let that go to the right netdev!
939 */
4bbf4d56
JB		 940 mutex_lock(&cfg80211_mutex);
941
f444de05
JB		 942 if (info->attrs[NL80211_ATTR_IFINDEX]) {
943 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
944
945 netdev = dev_get_by_index(genl_info_net(info), ifindex);
946 if (netdev && netdev->ieee80211_ptr) {
947 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
948 mutex_lock(&rdev->mtx);
949 } else
950 netdev = NULL;
4bbf4d56
JB		 951 }
952
f444de05
JB		 953 if (!netdev) {
954 rdev = __cfg80211_rdev_from_info(info);
955 if (IS_ERR(rdev)) {
956 mutex_unlock(&cfg80211_mutex);
4c476991 957 return PTR_ERR(rdev);
f444de05
JB		 958 }
959 wdev = NULL;
960 netdev = NULL;
961 result = 0;
962
963 mutex_lock(&rdev->mtx);
964 } else if (netif_running(netdev) &&
965 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
966 wdev = netdev->ieee80211_ptr;
967 else
968 wdev = NULL;
969
970 /*
971 * end workaround code, by now the rdev is available
972 * and locked, and wdev may or may not be NULL.
973 */
4bbf4d56
JB		 974
975 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 976 result = cfg80211_dev_rename(
977 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 978
979 mutex_unlock(&cfg80211_mutex);
980
981 if (result)
982 goto bad_res;
31888487
JM		 983
984 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
985 struct ieee80211_txq_params txq_params;
986 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
987
988 if (!rdev->ops->set_txq_params) {
989 result = -EOPNOTSUPP;
990 goto bad_res;
991 }
992
993 nla_for_each_nested(nl_txq_params,
994 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
995 rem_txq_params) {
996 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
997 nla_data(nl_txq_params),
998 nla_len(nl_txq_params),
999 txq_params_policy);
1000 result = parse_txq_params(tb, &txq_params);
1001 if (result)
1002 goto bad_res;
1003
1004 result = rdev->ops->set_txq_params(&rdev->wiphy,
1005 &txq_params);
1006 if (result)
1007 goto bad_res;
1008 }
1009 }
55682965 1010
72bdcf34 1011 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1012 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1013 if (result)
1014 goto bad_res;
1015 }
1016
98d2ff8b
JO		 1017 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1018 enum nl80211_tx_power_setting type;
1019 int idx, mbm = 0;
1020
1021 if (!rdev->ops->set_tx_power) {
60ea385f 1022 result = -EOPNOTSUPP;
98d2ff8b
JO		 1023 goto bad_res;
1024 }
1025
1026 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1027 type = nla_get_u32(info->attrs[idx]);
1028
1029 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1030 (type != NL80211_TX_POWER_AUTOMATIC)) {
1031 result = -EINVAL;
1032 goto bad_res;
1033 }
1034
1035 if (type != NL80211_TX_POWER_AUTOMATIC) {
1036 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1037 mbm = nla_get_u32(info->attrs[idx]);
1038 }
1039
1040 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1041 if (result)
1042 goto bad_res;
1043 }
1044
afe0cbf8
BR		 1045 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1046 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1047 u32 tx_ant, rx_ant;
1048 if (!rdev->ops->set_antenna) {
1049 result = -EOPNOTSUPP;
1050 goto bad_res;
1051 }
1052
1053 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1054 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1055
1056 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1057 if (result)
1058 goto bad_res;
1059 }
1060
b9a5f8ca
JM		 1061 changed = 0;
1062
1063 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1064 retry_short = nla_get_u8(
1065 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1066 if (retry_short == 0) {
1067 result = -EINVAL;
1068 goto bad_res;
1069 }
1070 changed |= WIPHY_PARAM_RETRY_SHORT;
1071 }
1072
1073 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1074 retry_long = nla_get_u8(
1075 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1076 if (retry_long == 0) {
1077 result = -EINVAL;
1078 goto bad_res;
1079 }
1080 changed |= WIPHY_PARAM_RETRY_LONG;
1081 }
1082
1083 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1084 frag_threshold = nla_get_u32(
1085 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1086 if (frag_threshold < 256) {
1087 result = -EINVAL;
1088 goto bad_res;
1089 }
1090 if (frag_threshold != (u32) -1) {
1091 /*
1092 * Fragments (apart from the last one) are required to
1093 * have even length. Make the fragmentation code
1094 * simpler by stripping LSB should someone try to use
1095 * odd threshold value.
1096 */
1097 frag_threshold &= ~0x1;
1098 }
1099 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1100 }
1101
1102 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1103 rts_threshold = nla_get_u32(
1104 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1105 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1106 }
1107
81077e82
LT		 1108 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1109 coverage_class = nla_get_u8(
1110 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1111 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1112 }
1113
b9a5f8ca
JM		 1114 if (changed) {
1115 u8 old_retry_short, old_retry_long;
1116 u32 old_frag_threshold, old_rts_threshold;
81077e82 1117 u8 old_coverage_class;
b9a5f8ca
JM		 1118
1119 if (!rdev->ops->set_wiphy_params) {
1120 result = -EOPNOTSUPP;
1121 goto bad_res;
1122 }
1123
1124 old_retry_short = rdev->wiphy.retry_short;
1125 old_retry_long = rdev->wiphy.retry_long;
1126 old_frag_threshold = rdev->wiphy.frag_threshold;
1127 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1128 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1129
1130 if (changed & WIPHY_PARAM_RETRY_SHORT)
1131 rdev->wiphy.retry_short = retry_short;
1132 if (changed & WIPHY_PARAM_RETRY_LONG)
1133 rdev->wiphy.retry_long = retry_long;
1134 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1135 rdev->wiphy.frag_threshold = frag_threshold;
1136 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1137 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1138 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1139 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1140
1141 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1142 if (result) {
1143 rdev->wiphy.retry_short = old_retry_short;
1144 rdev->wiphy.retry_long = old_retry_long;
1145 rdev->wiphy.frag_threshold = old_frag_threshold;
1146 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1147 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1148 }
1149 }
72bdcf34 1150
306d6112 1151 bad_res:
4bbf4d56 1152 mutex_unlock(&rdev->mtx);
f444de05
JB		 1153 if (netdev)
1154 dev_put(netdev);
55682965
JB		 1155 return result;
1156}
1157
1158
1159static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1160 struct cfg80211_registered_device *rdev,
55682965
JB		 1161 struct net_device *dev)
1162{
1163 void *hdr;
1164
1165 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1166 if (!hdr)
1167 return -1;
1168
1169 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1170 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1171 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1172 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1173
1174 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1175 rdev->devlist_generation ^
1176 (cfg80211_rdev_list_generation << 2));
1177
55682965
JB		 1178 return genlmsg_end(msg, hdr);
1179
1180 nla_put_failure:
bc3ed28c
TG		 1181 genlmsg_cancel(msg, hdr);
1182 return -EMSGSIZE;
55682965
JB		 1183}
1184
1185static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1186{
1187 int wp_idx = 0;
1188 int if_idx = 0;
1189 int wp_start = cb->args[0];
1190 int if_start = cb->args[1];
f5ea9120 1191 struct cfg80211_registered_device *rdev;
55682965
JB		 1192 struct wireless_dev *wdev;
1193
a1794390 1194 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1195 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1196 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1197 continue;
bba95fef
JB		 1198 if (wp_idx < wp_start) {
1199 wp_idx++;
55682965 1200 continue;
bba95fef 1201 }
55682965
JB		 1202 if_idx = 0;
1203
f5ea9120
JB		 1204 mutex_lock(&rdev->devlist_mtx);
1205 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1206 if (if_idx < if_start) {
1207 if_idx++;
55682965 1208 continue;
bba95fef 1209 }
55682965
JB		 1210 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1211 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1212 rdev, wdev->netdev) < 0) {
1213 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1214 goto out;
1215 }
1216 if_idx++;
55682965 1217 }
f5ea9120 1218 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1219
1220 wp_idx++;
55682965 1221 }
bba95fef 1222 out:
a1794390 1223 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1224
1225 cb->args[0] = wp_idx;
1226 cb->args[1] = if_idx;
1227
1228 return skb->len;
1229}
1230
1231static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1232{
1233 struct sk_buff *msg;
4c476991
JB		 1234 struct cfg80211_registered_device *dev = info->user_ptr[0];
1235 struct net_device *netdev = info->user_ptr[1];
55682965 1236
fd2120ca 1237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1238 if (!msg)
4c476991 1239 return -ENOMEM;
55682965 1240
d726405a 1241 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1242 dev, netdev) < 0) {
1243 nlmsg_free(msg);
1244 return -ENOBUFS;
1245 }
55682965 1246
134e6375 1247 return genlmsg_reply(msg, info);
55682965
JB		 1248}
1249
66f7ac50
MW		 1250static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1251 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1252 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1253 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1254 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1255 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1256};
1257
1258static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1259{
1260 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1261 int flag;
1262
1263 *mntrflags = 0;
1264
1265 if (!nla)
1266 return -EINVAL;
1267
1268 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1269 nla, mntr_flags_policy))
1270 return -EINVAL;
1271
1272 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1273 if (flags[flag])
1274 *mntrflags |= (1<<flag);
1275
1276 return 0;
1277}
1278
9bc383de 1279static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1280 struct net_device *netdev, u8 use_4addr,
1281 enum nl80211_iftype iftype)
9bc383de 1282{
ad4bb6f8 1283 if (!use_4addr) {
f350a0a8 1284 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1285 return -EBUSY;
9bc383de 1286 return 0;
ad4bb6f8 1287 }
9bc383de
JB		 1288
1289 switch (iftype) {
1290 case NL80211_IFTYPE_AP_VLAN:
1291 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1292 return 0;
1293 break;
1294 case NL80211_IFTYPE_STATION:
1295 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1296 return 0;
1297 break;
1298 default:
1299 break;
1300 }
1301
1302 return -EOPNOTSUPP;
1303}
1304
55682965
JB		 1305static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1306{
4c476991 1307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1308 struct vif_params params;
e36d56b6 1309 int err;
04a773ad 1310 enum nl80211_iftype otype, ntype;
4c476991 1311 struct net_device *dev = info->user_ptr[1];
92ffe055 1312 u32 _flags, *flags = NULL;
ac7f9cfa 1313 bool change = false;
55682965 1314
2ec600d6
LCC		 1315 memset(&params, 0, sizeof(params));
1316
04a773ad 1317 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1318
723b038d 1319 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1320 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1321 if (otype != ntype)
ac7f9cfa 1322 change = true;
4c476991
JB		 1323 if (ntype > NL80211_IFTYPE_MAX)
1324 return -EINVAL;
723b038d
JB		 1325 }
1326
92ffe055 1327 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1328 struct wireless_dev *wdev = dev->ieee80211_ptr;
1329
4c476991
JB		 1330 if (ntype != NL80211_IFTYPE_MESH_POINT)
1331 return -EINVAL;
29cbe68c
JB		 1332 if (netif_running(dev))
1333 return -EBUSY;
1334
1335 wdev_lock(wdev);
1336 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1337 IEEE80211_MAX_MESH_ID_LEN);
1338 wdev->mesh_id_up_len =
1339 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1340 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1341 wdev->mesh_id_up_len);
1342 wdev_unlock(wdev);
2ec600d6
LCC		 1343 }
1344
8b787643
FF		 1345 if (info->attrs[NL80211_ATTR_4ADDR]) {
1346 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1347 change = true;
ad4bb6f8 1348 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1349 if (err)
4c476991 1350 return err;
8b787643
FF		 1351 } else {
1352 params.use_4addr = -1;
1353 }
1354
92ffe055 1355 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1356 if (ntype != NL80211_IFTYPE_MONITOR)
1357 return -EINVAL;
92ffe055
JB		 1358 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1359 &_flags);
ac7f9cfa 1360 if (err)
4c476991 1361 return err;
ac7f9cfa
JB		 1362
1363 flags = &_flags;
1364 change = true;
92ffe055 1365 }
3b85875a 1366
ac7f9cfa 1367 if (change)
3d54d255 1368 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1369 else
1370 err = 0;
60719ffd 1371
9bc383de
JB		 1372 if (!err && params.use_4addr != -1)
1373 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1374
55682965
JB		 1375 return err;
1376}
1377
1378static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1379{
4c476991 1380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1381 struct vif_params params;
f9e10ce4 1382 struct net_device *dev;
55682965
JB		 1383 int err;
1384 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1385 u32 flags;
55682965 1386
2ec600d6
LCC		 1387 memset(&params, 0, sizeof(params));
1388
55682965
JB		 1389 if (!info->attrs[NL80211_ATTR_IFNAME])
1390 return -EINVAL;
1391
1392 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1393 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1394 if (type > NL80211_IFTYPE_MAX)
1395 return -EINVAL;
1396 }
1397
79c97e97 1398 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1399 !(rdev->wiphy.interface_modes & (1 << type)))
1400 return -EOPNOTSUPP;
55682965 1401
9bc383de 1402 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1403 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1404 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1405 if (err)
4c476991 1406 return err;
9bc383de 1407 }
8b787643 1408
66f7ac50
MW		 1409 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1410 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1411 &flags);
f9e10ce4 1412 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1413 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1414 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1415 if (IS_ERR(dev))
1416 return PTR_ERR(dev);
2ec600d6 1417
29cbe68c
JB		 1418 if (type == NL80211_IFTYPE_MESH_POINT &&
1419 info->attrs[NL80211_ATTR_MESH_ID]) {
1420 struct wireless_dev *wdev = dev->ieee80211_ptr;
1421
1422 wdev_lock(wdev);
1423 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1424 IEEE80211_MAX_MESH_ID_LEN);
1425 wdev->mesh_id_up_len =
1426 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1427 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1428 wdev->mesh_id_up_len);
1429 wdev_unlock(wdev);
1430 }
1431
f9e10ce4 1432 return 0;
55682965
JB		 1433}
1434
1435static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1436{
4c476991
JB		 1437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1438 struct net_device *dev = info->user_ptr[1];
55682965 1439
4c476991
JB		 1440 if (!rdev->ops->del_virtual_intf)
1441 return -EOPNOTSUPP;
55682965 1442
4c476991 1443 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1444}
1445
41ade00f
JB		 1446struct get_key_cookie {
1447 struct sk_buff *msg;
1448 int error;
b9454e83 1449 int idx;
41ade00f
JB		 1450};
1451
1452static void get_key_callback(void *c, struct key_params *params)
1453{
b9454e83 1454 struct nlattr *key;
41ade00f
JB		 1455 struct get_key_cookie *cookie = c;
1456
1457 if (params->key)
1458 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1459 params->key_len, params->key);
1460
1461 if (params->seq)
1462 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1463 params->seq_len, params->seq);
1464
1465 if (params->cipher)
1466 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1467 params->cipher);
1468
b9454e83
JB		 1469 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1470 if (!key)
1471 goto nla_put_failure;
1472
1473 if (params->key)
1474 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1475 params->key_len, params->key);
1476
1477 if (params->seq)
1478 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1479 params->seq_len, params->seq);
1480
1481 if (params->cipher)
1482 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1483 params->cipher);
1484
1485 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1486
1487 nla_nest_end(cookie->msg, key);
1488
41ade00f
JB		 1489 return;
1490 nla_put_failure:
1491 cookie->error = 1;
1492}
1493
1494static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1495{
4c476991 1496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1497 int err;
4c476991 1498 struct net_device *dev = info->user_ptr[1];
41ade00f 1499 u8 key_idx = 0;
e31b8213
JB		 1500 const u8 *mac_addr = NULL;
1501 bool pairwise;
41ade00f
JB		 1502 struct get_key_cookie cookie = {
1503 .error = 0,
1504 };
1505 void *hdr;
1506 struct sk_buff *msg;
1507
1508 if (info->attrs[NL80211_ATTR_KEY_IDX])
1509 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1510
3cfcf6ac 1511 if (key_idx > 5)
41ade00f
JB		 1512 return -EINVAL;
1513
1514 if (info->attrs[NL80211_ATTR_MAC])
1515 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1516
e31b8213
JB		 1517 pairwise = !!mac_addr;
1518 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1519 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1520 if (kt >= NUM_NL80211_KEYTYPES)
1521 return -EINVAL;
1522 if (kt != NL80211_KEYTYPE_GROUP &&
1523 kt != NL80211_KEYTYPE_PAIRWISE)
1524 return -EINVAL;
1525 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1526 }
1527
4c476991
JB		 1528 if (!rdev->ops->get_key)
1529 return -EOPNOTSUPP;
41ade00f 1530
fd2120ca 1531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1532 if (!msg)
1533 return -ENOMEM;
41ade00f
JB		 1534
1535 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1536 NL80211_CMD_NEW_KEY);
4c476991
JB		 1537 if (IS_ERR(hdr))
1538 return PTR_ERR(hdr);
41ade00f
JB		 1539
1540 cookie.msg = msg;
b9454e83 1541 cookie.idx = key_idx;
41ade00f
JB		 1542
1543 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1544 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1545 if (mac_addr)
1546 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1547
e31b8213
JB		 1548 if (pairwise && mac_addr &&
1549 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1550 return -ENOENT;
1551
1552 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1553 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1554
1555 if (err)
6c95e2a2 1556 goto free_msg;
41ade00f
JB		 1557
1558 if (cookie.error)
1559 goto nla_put_failure;
1560
1561 genlmsg_end(msg, hdr);
4c476991 1562 return genlmsg_reply(msg, info);
41ade00f
JB		 1563
1564 nla_put_failure:
1565 err = -ENOBUFS;
6c95e2a2 1566 free_msg:
41ade00f 1567 nlmsg_free(msg);
41ade00f
JB		 1568 return err;
1569}
1570
1571static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1572{
4c476991 1573 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1574 struct key_parse key;
41ade00f 1575 int err;
4c476991 1576 struct net_device *dev = info->user_ptr[1];
3cfcf6ac
JM		 1577 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1578 u8 key_index);
41ade00f 1579
b9454e83
JB		 1580 err = nl80211_parse_key(info, &key);
1581 if (err)
1582 return err;
41ade00f 1583
b9454e83 1584 if (key.idx < 0)
41ade00f
JB		 1585 return -EINVAL;
1586
b9454e83
JB		 1587 /* only support setting default key */
1588 if (!key.def && !key.defmgmt)
41ade00f
JB		 1589 return -EINVAL;
1590
b9454e83 1591 if (key.def)
79c97e97 1592 func = rdev->ops->set_default_key;
3cfcf6ac 1593 else
79c97e97 1594 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac 1595
4c476991
JB		 1596 if (!func)
1597 return -EOPNOTSUPP;
41ade00f 1598
fffd0934
JB		 1599 wdev_lock(dev->ieee80211_ptr);
1600 err = nl80211_key_allowed(dev->ieee80211_ptr);
1601 if (!err)
1602 err = func(&rdev->wiphy, dev, key.idx);
1603
3d23e349 1604#ifdef CONFIG_CFG80211_WEXT
08645126 1605 if (!err) {
79c97e97 1606 if (func == rdev->ops->set_default_key)
b9454e83 1607 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1608 else
b9454e83 1609 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1610 }
1611#endif
fffd0934 1612 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1613
41ade00f
JB		 1614 return err;
1615}
1616
1617static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1618{
4c476991 1619 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1620 int err;
4c476991 1621 struct net_device *dev = info->user_ptr[1];
b9454e83 1622 struct key_parse key;
e31b8213 1623 const u8 *mac_addr = NULL;
41ade00f 1624
b9454e83
JB		 1625 err = nl80211_parse_key(info, &key);
1626 if (err)
1627 return err;
41ade00f 1628
b9454e83 1629 if (!key.p.key)
41ade00f
JB		 1630 return -EINVAL;
1631
41ade00f
JB		 1632 if (info->attrs[NL80211_ATTR_MAC])
1633 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1634
e31b8213
JB		 1635 if (key.type == -1) {
1636 if (mac_addr)
1637 key.type = NL80211_KEYTYPE_PAIRWISE;
1638 else
1639 key.type = NL80211_KEYTYPE_GROUP;
1640 }
1641
1642 /* for now */
1643 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1644 key.type != NL80211_KEYTYPE_GROUP)
1645 return -EINVAL;
1646
4c476991
JB		 1647 if (!rdev->ops->add_key)
1648 return -EOPNOTSUPP;
25e47c18 1649
e31b8213
JB		 1650 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1651 key.type == NL80211_KEYTYPE_PAIRWISE,
1652 mac_addr))
4c476991 1653 return -EINVAL;
41ade00f 1654
fffd0934
JB		 1655 wdev_lock(dev->ieee80211_ptr);
1656 err = nl80211_key_allowed(dev->ieee80211_ptr);
1657 if (!err)
1658 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1659 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1660 mac_addr, &key.p);
1661 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1662
41ade00f
JB		 1663 return err;
1664}
1665
1666static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1667{
4c476991 1668 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1669 int err;
4c476991 1670 struct net_device *dev = info->user_ptr[1];
41ade00f 1671 u8 *mac_addr = NULL;
b9454e83 1672 struct key_parse key;
41ade00f 1673
b9454e83
JB		 1674 err = nl80211_parse_key(info, &key);
1675 if (err)
1676 return err;
41ade00f
JB		 1677
1678 if (info->attrs[NL80211_ATTR_MAC])
1679 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1680
e31b8213
JB		 1681 if (key.type == -1) {
1682 if (mac_addr)
1683 key.type = NL80211_KEYTYPE_PAIRWISE;
1684 else
1685 key.type = NL80211_KEYTYPE_GROUP;
1686 }
1687
1688 /* for now */
1689 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1690 key.type != NL80211_KEYTYPE_GROUP)
1691 return -EINVAL;
1692
4c476991
JB		 1693 if (!rdev->ops->del_key)
1694 return -EOPNOTSUPP;
41ade00f 1695
fffd0934
JB		 1696 wdev_lock(dev->ieee80211_ptr);
1697 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1698
1699 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1700 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1701 err = -ENOENT;
1702
fffd0934 1703 if (!err)
e31b8213
JB		 1704 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1705 key.type == NL80211_KEYTYPE_PAIRWISE,
1706 mac_addr);
41ade00f 1707
3d23e349 1708#ifdef CONFIG_CFG80211_WEXT
08645126 1709 if (!err) {
b9454e83 1710 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1711 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1712 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1713 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1714 }
1715#endif
fffd0934 1716 wdev_unlock(dev->ieee80211_ptr);
08645126 1717
41ade00f
JB		 1718 return err;
1719}
1720
ed1b6cc7
JB		 1721static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1722{
1723 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1724 struct beacon_parameters *info);
4c476991
JB		 1725 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1726 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1727 struct beacon_parameters params;
1728 int haveinfo = 0;
1729
f4a11bb0
JB		 1730 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1731 return -EINVAL;
1732
074ac8df 1733 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1734 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1735 return -EOPNOTSUPP;
eec60b03 1736
ed1b6cc7
JB		 1737 switch (info->genlhdr->cmd) {
1738 case NL80211_CMD_NEW_BEACON:
1739 /* these are required for NEW_BEACON */
1740 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1741 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1742 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1743 return -EINVAL;
ed1b6cc7 1744
79c97e97 1745 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1746 break;
1747 case NL80211_CMD_SET_BEACON:
79c97e97 1748 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1749 break;
1750 default:
1751 WARN_ON(1);
4c476991 1752 return -EOPNOTSUPP;
ed1b6cc7
JB		 1753 }
1754
4c476991
JB		 1755 if (!call)
1756 return -EOPNOTSUPP;
ed1b6cc7
JB		 1757
1758 memset(&params, 0, sizeof(params));
1759
1760 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1761 params.interval =
1762 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1763 haveinfo = 1;
1764 }
1765
1766 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1767 params.dtim_period =
1768 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1769 haveinfo = 1;
1770 }
1771
1772 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1773 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1774 params.head_len =
1775 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1776 haveinfo = 1;
1777 }
1778
1779 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1780 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1781 params.tail_len =
1782 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1783 haveinfo = 1;
1784 }
1785
4c476991
JB		 1786 if (!haveinfo)
1787 return -EINVAL;
3b85875a 1788
4c476991 1789 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1790}
1791
1792static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1793{
4c476991
JB		 1794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1795 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1796
4c476991
JB		 1797 if (!rdev->ops->del_beacon)
1798 return -EOPNOTSUPP;
ed1b6cc7 1799
074ac8df 1800 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1801 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1802 return -EOPNOTSUPP;
3b85875a 1803
4c476991 1804 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1805}
1806
5727ef1b
JB		 1807static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1808 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1809 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1810 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1811 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1812};
1813
eccb8e8f
JB		 1814static int parse_station_flags(struct genl_info *info,
1815 struct station_parameters *params)
5727ef1b
JB		 1816{
1817 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1818 struct nlattr *nla;
5727ef1b
JB		 1819 int flag;
1820
eccb8e8f
JB		 1821 /*
1822 * Try parsing the new attribute first so userspace
1823 * can specify both for older kernels.
1824 */
1825 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1826 if (nla) {
1827 struct nl80211_sta_flag_update *sta_flags;
1828
1829 sta_flags = nla_data(nla);
1830 params->sta_flags_mask = sta_flags->mask;
1831 params->sta_flags_set = sta_flags->set;
1832 if ((params->sta_flags_mask |
1833 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1834 return -EINVAL;
1835 return 0;
1836 }
1837
1838 /* if present, parse the old attribute */
5727ef1b 1839
eccb8e8f 1840 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1841 if (!nla)
1842 return 0;
1843
1844 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1845 nla, sta_flags_policy))
1846 return -EINVAL;
1847
eccb8e8f
JB		 1848 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1849 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1850
1851 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1852 if (flags[flag])
eccb8e8f 1853 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1854
1855 return 0;
1856}
1857
fd5b74dc
JB		 1858static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1859 int flags, struct net_device *dev,
98b62183 1860 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1861{
1862 void *hdr;
420e7fab
HR		 1863 struct nlattr *sinfoattr, *txrate;
1864 u16 bitrate;
fd5b74dc
JB		 1865
1866 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1867 if (!hdr)
1868 return -1;
1869
1870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1871 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1872
f5ea9120
JB		 1873 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1874
2ec600d6
LCC		 1875 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1876 if (!sinfoattr)
fd5b74dc 1877 goto nla_put_failure;
2ec600d6
LCC		 1878 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1879 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1880 sinfo->inactive_time);
1881 if (sinfo->filled & STATION_INFO_RX_BYTES)
1882 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1883 sinfo->rx_bytes);
1884 if (sinfo->filled & STATION_INFO_TX_BYTES)
1885 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1886 sinfo->tx_bytes);
1887 if (sinfo->filled & STATION_INFO_LLID)
1888 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1889 sinfo->llid);
1890 if (sinfo->filled & STATION_INFO_PLID)
1891 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1892 sinfo->plid);
1893 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1894 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1895 sinfo->plink_state);
420e7fab
HR		 1896 if (sinfo->filled & STATION_INFO_SIGNAL)
1897 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1898 sinfo->signal);
541a45a1
BR		 1899 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
1900 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
1901 sinfo->signal_avg);
420e7fab
HR		 1902 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1903 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1904 if (!txrate)
1905 goto nla_put_failure;
1906
254416aa
JL		 1907 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1908 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1909 if (bitrate > 0)
1910 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1911
420e7fab
HR		 1912 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1913 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1914 sinfo->txrate.mcs);
1915 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1916 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1917 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1918 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1919
1920 nla_nest_end(msg, txrate);
1921 }
98c8a60a
JM		 1922 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1923 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1924 sinfo->rx_packets);
1925 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1926 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1927 sinfo->tx_packets);
b206b4ef
BR		 1928 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1929 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1930 sinfo->tx_retries);
1931 if (sinfo->filled & STATION_INFO_TX_FAILED)
1932 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1933 sinfo->tx_failed);
2ec600d6 1934 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1935
1936 return genlmsg_end(msg, hdr);
1937
1938 nla_put_failure:
bc3ed28c
TG		 1939 genlmsg_cancel(msg, hdr);
1940 return -EMSGSIZE;
fd5b74dc
JB		 1941}
1942
2ec600d6 1943static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1944 struct netlink_callback *cb)
2ec600d6 1945{
2ec600d6
LCC		 1946 struct station_info sinfo;
1947 struct cfg80211_registered_device *dev;
bba95fef 1948 struct net_device *netdev;
2ec600d6 1949 u8 mac_addr[ETH_ALEN];
bba95fef 1950 int sta_idx = cb->args[1];
2ec600d6 1951 int err;
2ec600d6 1952
67748893
JB		 1953 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1954 if (err)
1955 return err;
bba95fef
JB		 1956
1957 if (!dev->ops->dump_station) {
eec60b03 1958 err = -EOPNOTSUPP;
bba95fef
JB		 1959 goto out_err;
1960 }
1961
bba95fef
JB		 1962 while (1) {
1963 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1964 mac_addr, &sinfo);
1965 if (err == -ENOENT)
1966 break;
1967 if (err)
3b85875a 1968 goto out_err;
bba95fef
JB		 1969
1970 if (nl80211_send_station(skb,
1971 NETLINK_CB(cb->skb).pid,
1972 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1973 netdev, mac_addr,
1974 &sinfo) < 0)
1975 goto out;
1976
1977 sta_idx++;
1978 }
1979
1980
1981 out:
1982 cb->args[1] = sta_idx;
1983 err = skb->len;
bba95fef 1984 out_err:
67748893 1985 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 1986
1987 return err;
2ec600d6 1988}
fd5b74dc 1989
5727ef1b
JB		 1990static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1991{
4c476991
JB		 1992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1993 struct net_device *dev = info->user_ptr[1];
2ec600d6 1994 struct station_info sinfo;
fd5b74dc
JB		 1995 struct sk_buff *msg;
1996 u8 *mac_addr = NULL;
4c476991 1997 int err;
fd5b74dc 1998
2ec600d6 1999 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2000
2001 if (!info->attrs[NL80211_ATTR_MAC])
2002 return -EINVAL;
2003
2004 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2005
4c476991
JB		 2006 if (!rdev->ops->get_station)
2007 return -EOPNOTSUPP;
3b85875a 2008
4c476991 2009 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2010 if (err)
4c476991 2011 return err;
2ec600d6 2012
fd2120ca 2013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2014 if (!msg)
4c476991 2015 return -ENOMEM;
fd5b74dc
JB		 2016
2017 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2018 dev, mac_addr, &sinfo) < 0) {
2019 nlmsg_free(msg);
2020 return -ENOBUFS;
2021 }
3b85875a 2022
4c476991 2023 return genlmsg_reply(msg, info);
5727ef1b
JB		 2024}
2025
2026/*
c258d2de 2027 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2028 */
463d0183 2029static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2030 struct cfg80211_registered_device *rdev,
2031 struct net_device **vlan)
2032{
463d0183 2033 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2034 *vlan = NULL;
2035
2036 if (vlanattr) {
463d0183
JB		 2037 *vlan = dev_get_by_index(genl_info_net(info),
2038 nla_get_u32(vlanattr));
5727ef1b
JB		 2039 if (!*vlan)
2040 return -ENODEV;
2041 if (!(*vlan)->ieee80211_ptr)
2042 return -EINVAL;
2043 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2044 return -EINVAL;
c258d2de
FF		 2045 if (!netif_running(*vlan))
2046 return -ENETDOWN;
5727ef1b
JB		 2047 }
2048 return 0;
2049}
2050
2051static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2052{
4c476991 2053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2054 int err;
4c476991 2055 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2056 struct station_parameters params;
2057 u8 *mac_addr = NULL;
2058
2059 memset(&params, 0, sizeof(params));
2060
2061 params.listen_interval = -1;
2062
2063 if (info->attrs[NL80211_ATTR_STA_AID])
2064 return -EINVAL;
2065
2066 if (!info->attrs[NL80211_ATTR_MAC])
2067 return -EINVAL;
2068
2069 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2070
2071 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2072 params.supported_rates =
2073 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2074 params.supported_rates_len =
2075 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2076 }
2077
2078 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2079 params.listen_interval =
2080 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2081
36aedc90
JM		 2082 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2083 params.ht_capa =
2084 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2085
eccb8e8f 2086 if (parse_station_flags(info, &params))
5727ef1b
JB		 2087 return -EINVAL;
2088
2ec600d6
LCC		 2089 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2090 params.plink_action =
2091 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2092
463d0183 2093 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2094 if (err)
034d655e 2095 goto out;
a97f4424
JB		 2096
2097 /* validate settings */
2098 err = 0;
2099
2100 switch (dev->ieee80211_ptr->iftype) {
2101 case NL80211_IFTYPE_AP:
2102 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2103 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2104 /* disallow mesh-specific things */
2105 if (params.plink_action)
2106 err = -EINVAL;
2107 break;
074ac8df 2108 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2109 case NL80211_IFTYPE_STATION:
2110 /* disallow everything but AUTHORIZED flag */
2111 if (params.plink_action)
2112 err = -EINVAL;
2113 if (params.vlan)
2114 err = -EINVAL;
2115 if (params.supported_rates)
2116 err = -EINVAL;
2117 if (params.ht_capa)
2118 err = -EINVAL;
2119 if (params.listen_interval >= 0)
2120 err = -EINVAL;
2121 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2122 err = -EINVAL;
2123 break;
2124 case NL80211_IFTYPE_MESH_POINT:
2125 /* disallow things mesh doesn't support */
2126 if (params.vlan)
2127 err = -EINVAL;
2128 if (params.ht_capa)
2129 err = -EINVAL;
2130 if (params.listen_interval >= 0)
2131 err = -EINVAL;
2132 if (params.supported_rates)
2133 err = -EINVAL;
2134 if (params.sta_flags_mask)
2135 err = -EINVAL;
2136 break;
2137 default:
2138 err = -EINVAL;
034d655e
JB		 2139 }
2140
5727ef1b
JB		 2141 if (err)
2142 goto out;
2143
79c97e97 2144 if (!rdev->ops->change_station) {
5727ef1b
JB		 2145 err = -EOPNOTSUPP;
2146 goto out;
2147 }
2148
79c97e97 2149 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2150
2151 out:
2152 if (params.vlan)
2153 dev_put(params.vlan);
3b85875a 2154
5727ef1b
JB		 2155 return err;
2156}
2157
2158static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2159{
4c476991 2160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2161 int err;
4c476991 2162 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2163 struct station_parameters params;
2164 u8 *mac_addr = NULL;
2165
2166 memset(&params, 0, sizeof(params));
2167
2168 if (!info->attrs[NL80211_ATTR_MAC])
2169 return -EINVAL;
2170
5727ef1b
JB		 2171 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2172 return -EINVAL;
2173
2174 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2175 return -EINVAL;
2176
0e956c13
TLSC		 2177 if (!info->attrs[NL80211_ATTR_STA_AID])
2178 return -EINVAL;
2179
5727ef1b
JB		 2180 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2181 params.supported_rates =
2182 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2183 params.supported_rates_len =
2184 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2185 params.listen_interval =
2186 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2187
0e956c13
TLSC		 2188 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2189 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2190 return -EINVAL;
51b50fbe 2191
36aedc90
JM		 2192 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2193 params.ht_capa =
2194 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2195
eccb8e8f 2196 if (parse_station_flags(info, &params))
5727ef1b
JB		 2197 return -EINVAL;
2198
0e956c13 2199 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2200 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2202 return -EINVAL;
0e956c13 2203
463d0183 2204 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2205 if (err)
e80cf853 2206 goto out;
a97f4424
JB		 2207
2208 /* validate settings */
2209 err = 0;
2210
79c97e97 2211 if (!rdev->ops->add_station) {
5727ef1b
JB		 2212 err = -EOPNOTSUPP;
2213 goto out;
2214 }
2215
79c97e97 2216 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2217
2218 out:
2219 if (params.vlan)
2220 dev_put(params.vlan);
5727ef1b
JB		 2221 return err;
2222}
2223
2224static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2225{
4c476991
JB		 2226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2227 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2228 u8 *mac_addr = NULL;
2229
2230 if (info->attrs[NL80211_ATTR_MAC])
2231 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2232
e80cf853 2233 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2234 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2235 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2236 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2237 return -EINVAL;
5727ef1b 2238
4c476991
JB		 2239 if (!rdev->ops->del_station)
2240 return -EOPNOTSUPP;
3b85875a 2241
4c476991 2242 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2243}
2244
2ec600d6
LCC		 2245static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2246 int flags, struct net_device *dev,
2247 u8 *dst, u8 *next_hop,
2248 struct mpath_info *pinfo)
2249{
2250 void *hdr;
2251 struct nlattr *pinfoattr;
2252
2253 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2254 if (!hdr)
2255 return -1;
2256
2257 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2258 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2259 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2260
f5ea9120
JB		 2261 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2262
2ec600d6
LCC		 2263 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2264 if (!pinfoattr)
2265 goto nla_put_failure;
2266 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2267 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2268 pinfo->frame_qlen);
d19b3bf6
RP		 2269 if (pinfo->filled & MPATH_INFO_SN)
2270 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2271 pinfo->sn);
2ec600d6
LCC		 2272 if (pinfo->filled & MPATH_INFO_METRIC)
2273 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2274 pinfo->metric);
2275 if (pinfo->filled & MPATH_INFO_EXPTIME)
2276 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2277 pinfo->exptime);
2278 if (pinfo->filled & MPATH_INFO_FLAGS)
2279 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2280 pinfo->flags);
2281 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2282 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2283 pinfo->discovery_timeout);
2284 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2285 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2286 pinfo->discovery_retries);
2287
2288 nla_nest_end(msg, pinfoattr);
2289
2290 return genlmsg_end(msg, hdr);
2291
2292 nla_put_failure:
bc3ed28c
TG		 2293 genlmsg_cancel(msg, hdr);
2294 return -EMSGSIZE;
2ec600d6
LCC		 2295}
2296
2297static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2298 struct netlink_callback *cb)
2ec600d6 2299{
2ec600d6
LCC		 2300 struct mpath_info pinfo;
2301 struct cfg80211_registered_device *dev;
bba95fef 2302 struct net_device *netdev;
2ec600d6
LCC		 2303 u8 dst[ETH_ALEN];
2304 u8 next_hop[ETH_ALEN];
bba95fef 2305 int path_idx = cb->args[1];
2ec600d6 2306 int err;
2ec600d6 2307
67748893
JB		 2308 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2309 if (err)
2310 return err;
bba95fef
JB		 2311
2312 if (!dev->ops->dump_mpath) {
eec60b03 2313 err = -EOPNOTSUPP;
bba95fef
JB		 2314 goto out_err;
2315 }
2316
eec60b03
JM		 2317 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2318 err = -EOPNOTSUPP;
0448b5fc 2319 goto out_err;
eec60b03
JM		 2320 }
2321
bba95fef
JB		 2322 while (1) {
2323 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2324 dst, next_hop, &pinfo);
2325 if (err == -ENOENT)
2ec600d6 2326 break;
bba95fef 2327 if (err)
3b85875a 2328 goto out_err;
2ec600d6 2329
bba95fef
JB		 2330 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2331 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2332 netdev, dst, next_hop,
2333 &pinfo) < 0)
2334 goto out;
2ec600d6 2335
bba95fef 2336 path_idx++;
2ec600d6 2337 }
2ec600d6 2338
2ec600d6 2339
bba95fef
JB		 2340 out:
2341 cb->args[1] = path_idx;
2342 err = skb->len;
bba95fef 2343 out_err:
67748893 2344 nl80211_finish_netdev_dump(dev);
bba95fef 2345 return err;
2ec600d6
LCC		 2346}
2347
2348static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2349{
4c476991 2350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2351 int err;
4c476991 2352 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2353 struct mpath_info pinfo;
2354 struct sk_buff *msg;
2355 u8 *dst = NULL;
2356 u8 next_hop[ETH_ALEN];
2357
2358 memset(&pinfo, 0, sizeof(pinfo));
2359
2360 if (!info->attrs[NL80211_ATTR_MAC])
2361 return -EINVAL;
2362
2363 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2364
4c476991
JB		 2365 if (!rdev->ops->get_mpath)
2366 return -EOPNOTSUPP;
2ec600d6 2367
4c476991
JB		 2368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2369 return -EOPNOTSUPP;
eec60b03 2370
79c97e97 2371 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2372 if (err)
4c476991 2373 return err;
2ec600d6 2374
fd2120ca 2375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2376 if (!msg)
4c476991 2377 return -ENOMEM;
2ec600d6
LCC		 2378
2379 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2380 dev, dst, next_hop, &pinfo) < 0) {
2381 nlmsg_free(msg);
2382 return -ENOBUFS;
2383 }
3b85875a 2384
4c476991 2385 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2386}
2387
2388static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2389{
4c476991
JB		 2390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2391 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2392 u8 *dst = NULL;
2393 u8 *next_hop = NULL;
2394
2395 if (!info->attrs[NL80211_ATTR_MAC])
2396 return -EINVAL;
2397
2398 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2399 return -EINVAL;
2400
2401 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2402 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2403
4c476991
JB		 2404 if (!rdev->ops->change_mpath)
2405 return -EOPNOTSUPP;
35a8efe1 2406
4c476991
JB		 2407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2408 return -EOPNOTSUPP;
2ec600d6 2409
4c476991 2410 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2411}
4c476991 2412
2ec600d6
LCC		 2413static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2414{
4c476991
JB		 2415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2416 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2417 u8 *dst = NULL;
2418 u8 *next_hop = NULL;
2419
2420 if (!info->attrs[NL80211_ATTR_MAC])
2421 return -EINVAL;
2422
2423 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2424 return -EINVAL;
2425
2426 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2427 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2428
4c476991
JB		 2429 if (!rdev->ops->add_mpath)
2430 return -EOPNOTSUPP;
35a8efe1 2431
4c476991
JB		 2432 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2433 return -EOPNOTSUPP;
2ec600d6 2434
4c476991 2435 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2436}
2437
2438static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2439{
4c476991
JB		 2440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2441 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2442 u8 *dst = NULL;
2443
2444 if (info->attrs[NL80211_ATTR_MAC])
2445 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2446
4c476991
JB		 2447 if (!rdev->ops->del_mpath)
2448 return -EOPNOTSUPP;
3b85875a 2449
4c476991 2450 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2451}
2452
9f1ba906
JM		 2453static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2454{
4c476991
JB		 2455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2456 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2457 struct bss_parameters params;
2458
2459 memset(&params, 0, sizeof(params));
2460 /* default to not changing parameters */
2461 params.use_cts_prot = -1;
2462 params.use_short_preamble = -1;
2463 params.use_short_slot_time = -1;
fd8aaaf3 2464 params.ap_isolate = -1;
9f1ba906
JM		 2465
2466 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2467 params.use_cts_prot =
2468 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2469 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2470 params.use_short_preamble =
2471 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2472 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2473 params.use_short_slot_time =
2474 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2475 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2476 params.basic_rates =
2477 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2478 params.basic_rates_len =
2479 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2480 }
fd8aaaf3
FF		 2481 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2482 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
9f1ba906 2483
4c476991
JB		 2484 if (!rdev->ops->change_bss)
2485 return -EOPNOTSUPP;
9f1ba906 2486
074ac8df 2487 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2488 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2489 return -EOPNOTSUPP;
3b85875a 2490
4c476991 2491 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2492}
2493
b54452b0 2494static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2495 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2496 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2497 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2498 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2499 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2500 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2501};
2502
2503static int parse_reg_rule(struct nlattr *tb[],
2504 struct ieee80211_reg_rule *reg_rule)
2505{
2506 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2507 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2508
2509 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2510 return -EINVAL;
2511 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2512 return -EINVAL;
2513 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2514 return -EINVAL;
2515 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2516 return -EINVAL;
2517 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2518 return -EINVAL;
2519
2520 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2521
2522 freq_range->start_freq_khz =
2523 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2524 freq_range->end_freq_khz =
2525 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2526 freq_range->max_bandwidth_khz =
2527 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2528
2529 power_rule->max_eirp =
2530 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2531
2532 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2533 power_rule->max_antenna_gain =
2534 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2535
2536 return 0;
2537}
2538
2539static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2540{
2541 int r;
2542 char *data = NULL;
2543
80778f18
LR		 2544 /*
2545 * You should only get this when cfg80211 hasn't yet initialized
2546 * completely when built-in to the kernel right between the time
2547 * window between nl80211_init() and regulatory_init(), if that is
2548 * even possible.
2549 */
2550 mutex_lock(&cfg80211_mutex);
2551 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2552 mutex_unlock(&cfg80211_mutex);
2553 return -EINPROGRESS;
80778f18 2554 }
fe33eb39 2555 mutex_unlock(&cfg80211_mutex);
80778f18 2556
fe33eb39
LR		 2557 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2558 return -EINVAL;
b2e1b302
LR		 2559
2560 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2561
fe33eb39
LR		 2562 r = regulatory_hint_user(data);
2563
b2e1b302
LR		 2564 return r;
2565}
2566
93da9cc1 2567static int nl80211_get_mesh_params(struct sk_buff *skb,
29cbe68c 2568 struct genl_info *info)
93da9cc1 2569{
4c476991 2570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2571 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2572 struct wireless_dev *wdev = dev->ieee80211_ptr;
2573 struct mesh_config cur_params;
2574 int err = 0;
93da9cc1 2575 void *hdr;
2576 struct nlattr *pinfoattr;
2577 struct sk_buff *msg;
2578
29cbe68c
JB		 2579 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2580 return -EOPNOTSUPP;
2581
4c476991
JB		 2582 if (!rdev->ops->get_mesh_params)
2583 return -EOPNOTSUPP;
f3f92586 2584
29cbe68c
JB		 2585 wdev_lock(wdev);
2586 /* If not connected, get default parameters */
2587 if (!wdev->mesh_id_len)
2588 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2589 else
2590 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev,
2591 &cur_params);
2592 wdev_unlock(wdev);
2593
93da9cc1 2594 if (err)
4c476991 2595 return err;
93da9cc1 2596
2597 /* Draw up a netlink message to send back */
fd2120ca 2598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2599 if (!msg)
2600 return -ENOMEM;
93da9cc1 2601 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2602 NL80211_CMD_GET_MESH_PARAMS);
2603 if (!hdr)
2604 goto nla_put_failure;
2605 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2606 if (!pinfoattr)
2607 goto nla_put_failure;
2608 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2609 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2610 cur_params.dot11MeshRetryTimeout);
2611 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2612 cur_params.dot11MeshConfirmTimeout);
2613 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2614 cur_params.dot11MeshHoldingTimeout);
2615 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2616 cur_params.dot11MeshMaxPeerLinks);
2617 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2618 cur_params.dot11MeshMaxRetries);
2619 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2620 cur_params.dot11MeshTTL);
45904f21
JC		 2621 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2622 cur_params.element_ttl);
93da9cc1 2623 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2624 cur_params.auto_open_plinks);
2625 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2626 cur_params.dot11MeshHWMPmaxPREQretries);
2627 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2628 cur_params.path_refresh_time);
2629 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2630 cur_params.min_discovery_timeout);
2631 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2632 cur_params.dot11MeshHWMPactivePathTimeout);
2633 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2634 cur_params.dot11MeshHWMPpreqMinInterval);
2635 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2636 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2637 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2638 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2639 nla_nest_end(msg, pinfoattr);
2640 genlmsg_end(msg, hdr);
4c476991 2641 return genlmsg_reply(msg, info);
93da9cc1 2642
3b85875a 2643 nla_put_failure:
93da9cc1 2644 genlmsg_cancel(msg, hdr);
d080e275 2645 nlmsg_free(msg);
4c476991 2646 return -ENOBUFS;
93da9cc1 2647}
2648
b54452b0 2649static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2650 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2651 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2652 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2653 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2654 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2655 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2656 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2657 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2658
2659 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2660 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2661 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2662 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2663 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2664 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2665};
2666
bd90fdcc
JB		 2667static int nl80211_parse_mesh_params(struct genl_info *info,
2668 struct mesh_config *cfg,
2669 u32 *mask_out)
93da9cc1 2670{
93da9cc1 2671 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2672 u32 mask = 0;
93da9cc1 2673
bd90fdcc
JB		 2674#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2675do {\
2676 if (table[attr_num]) {\
2677 cfg->param = nla_fn(table[attr_num]); \
2678 mask |= (1 << (attr_num - 1)); \
2679 } \
2680} while (0);\
2681
2682
2683 if (!info->attrs[NL80211_ATTR_MESH_PARAMS])
93da9cc1 2684 return -EINVAL;
2685 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
bd90fdcc
JB		 2686 info->attrs[NL80211_ATTR_MESH_PARAMS],
2687 nl80211_meshconf_params_policy))
93da9cc1 2688 return -EINVAL;
2689
93da9cc1 2690 /* This makes sure that there aren't more than 32 mesh config
2691 * parameters (otherwise our bitfield scheme would not work.) */
2692 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2693
2694 /* Fill in the params struct */
93da9cc1 2695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2696 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2698 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2699 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2700 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2702 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2703 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2704 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2706 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2708 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2710 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2712 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2713 nla_get_u8);
2714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2715 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2717 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2718 nla_get_u16);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2720 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2721 nla_get_u32);
2722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2723 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2724 nla_get_u16);
2725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2726 dot11MeshHWMPnetDiameterTraversalTime,
2727 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2728 nla_get_u16);
63c5723b
RP		 2729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2730 dot11MeshHWMPRootMode, mask,
2731 NL80211_MESHCONF_HWMP_ROOTMODE,
2732 nla_get_u8);
93da9cc1 2733
bd90fdcc
JB		 2734 if (mask_out)
2735 *mask_out = mask;
2736 return 0;
2737
2738#undef FILL_IN_MESH_PARAM_IF_SET
2739}
2740
29cbe68c
JB		 2741static int nl80211_update_mesh_params(struct sk_buff *skb,
2742 struct genl_info *info)
bd90fdcc
JB		 2743{
2744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2745 struct net_device *dev = info->user_ptr[1];
29cbe68c 2746 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 2747 struct mesh_config cfg;
2748 u32 mask;
2749 int err;
2750
29cbe68c
JB		 2751 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2752 return -EOPNOTSUPP;
2753
2754 if (!rdev->ops->update_mesh_params)
bd90fdcc
JB		 2755 return -EOPNOTSUPP;
2756
2757 err = nl80211_parse_mesh_params(info, &cfg, &mask);
2758 if (err)
2759 return err;
2760
29cbe68c
JB		 2761 wdev_lock(wdev);
2762 if (!wdev->mesh_id_len)
2763 err = -ENOLINK;
2764
2765 if (!err)
2766 err = rdev->ops->update_mesh_params(&rdev->wiphy, dev,
2767 mask, &cfg);
2768
2769 wdev_unlock(wdev);
2770
2771 return err;
93da9cc1 2772}
2773
f130347c
LR		 2774static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2775{
2776 struct sk_buff *msg;
2777 void *hdr = NULL;
2778 struct nlattr *nl_reg_rules;
2779 unsigned int i;
2780 int err = -EINVAL;
2781
a1794390 2782 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2783
2784 if (!cfg80211_regdomain)
2785 goto out;
2786
fd2120ca 2787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2788 if (!msg) {
2789 err = -ENOBUFS;
2790 goto out;
2791 }
2792
2793 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2794 NL80211_CMD_GET_REG);
2795 if (!hdr)
2796 goto nla_put_failure;
2797
2798 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2799 cfg80211_regdomain->alpha2);
2800
2801 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2802 if (!nl_reg_rules)
2803 goto nla_put_failure;
2804
2805 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2806 struct nlattr *nl_reg_rule;
2807 const struct ieee80211_reg_rule *reg_rule;
2808 const struct ieee80211_freq_range *freq_range;
2809 const struct ieee80211_power_rule *power_rule;
2810
2811 reg_rule = &cfg80211_regdomain->reg_rules[i];
2812 freq_range = &reg_rule->freq_range;
2813 power_rule = &reg_rule->power_rule;
2814
2815 nl_reg_rule = nla_nest_start(msg, i);
2816 if (!nl_reg_rule)
2817 goto nla_put_failure;
2818
2819 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2820 reg_rule->flags);
2821 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2822 freq_range->start_freq_khz);
2823 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2824 freq_range->end_freq_khz);
2825 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2826 freq_range->max_bandwidth_khz);
2827 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2828 power_rule->max_antenna_gain);
2829 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2830 power_rule->max_eirp);
2831
2832 nla_nest_end(msg, nl_reg_rule);
2833 }
2834
2835 nla_nest_end(msg, nl_reg_rules);
2836
2837 genlmsg_end(msg, hdr);
134e6375 2838 err = genlmsg_reply(msg, info);
f130347c
LR		 2839 goto out;
2840
2841nla_put_failure:
2842 genlmsg_cancel(msg, hdr);
d080e275 2843 nlmsg_free(msg);
f130347c
LR		 2844 err = -EMSGSIZE;
2845out:
a1794390 2846 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2847 return err;
2848}
2849
b2e1b302
LR		 2850static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2851{
2852 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2853 struct nlattr *nl_reg_rule;
2854 char *alpha2 = NULL;
2855 int rem_reg_rules = 0, r = 0;
2856 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2857 struct ieee80211_regdomain *rd = NULL;
2858
2859 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2860 return -EINVAL;
2861
2862 if (!info->attrs[NL80211_ATTR_REG_RULES])
2863 return -EINVAL;
2864
2865 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2866
2867 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2868 rem_reg_rules) {
2869 num_rules++;
2870 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2871 return -EINVAL;
b2e1b302
LR		 2872 }
2873
61405e97
LR		 2874 mutex_lock(&cfg80211_mutex);
2875
d0e18f83
LR		 2876 if (!reg_is_valid_request(alpha2)) {
2877 r = -EINVAL;
2878 goto bad_reg;
2879 }
b2e1b302
LR		 2880
2881 size_of_regd = sizeof(struct ieee80211_regdomain) +
2882 (num_rules * sizeof(struct ieee80211_reg_rule));
2883
2884 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2885 if (!rd) {
2886 r = -ENOMEM;
2887 goto bad_reg;
2888 }
b2e1b302
LR		 2889
2890 rd->n_reg_rules = num_rules;
2891 rd->alpha2[0] = alpha2[0];
2892 rd->alpha2[1] = alpha2[1];
2893
2894 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2895 rem_reg_rules) {
2896 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2897 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2898 reg_rule_policy);
2899 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2900 if (r)
2901 goto bad_reg;
2902
2903 rule_idx++;
2904
d0e18f83
LR		 2905 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2906 r = -EINVAL;
b2e1b302 2907 goto bad_reg;
d0e18f83 2908 }
b2e1b302
LR		 2909 }
2910
2911 BUG_ON(rule_idx != num_rules);
2912
b2e1b302 2913 r = set_regdom(rd);
61405e97 2914
a1794390 2915 mutex_unlock(&cfg80211_mutex);
d0e18f83 2916
b2e1b302
LR		 2917 return r;
2918
d2372b31 2919 bad_reg:
61405e97 2920 mutex_unlock(&cfg80211_mutex);
b2e1b302 2921 kfree(rd);
d0e18f83 2922 return r;
b2e1b302
LR		 2923}
2924
83f5e2cf
JB		 2925static int validate_scan_freqs(struct nlattr *freqs)
2926{
2927 struct nlattr *attr1, *attr2;
2928 int n_channels = 0, tmp1, tmp2;
2929
2930 nla_for_each_nested(attr1, freqs, tmp1) {
2931 n_channels++;
2932 /*
2933 * Some hardware has a limited channel list for
2934 * scanning, and it is pretty much nonsensical
2935 * to scan for a channel twice, so disallow that
2936 * and don't require drivers to check that the
2937 * channel list they get isn't longer than what
2938 * they can scan, as long as they can scan all
2939 * the channels they registered at once.
2940 */
2941 nla_for_each_nested(attr2, freqs, tmp2)
2942 if (attr1 != attr2 &&
2943 nla_get_u32(attr1) == nla_get_u32(attr2))
2944 return 0;
2945 }
2946
2947 return n_channels;
2948}
2949
2a519311
JB		 2950static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2951{
4c476991
JB		 2952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2953 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2954 struct cfg80211_scan_request *request;
2955 struct cfg80211_ssid *ssid;
2956 struct ieee80211_channel *channel;
2957 struct nlattr *attr;
2958 struct wiphy *wiphy;
83f5e2cf 2959 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2960 enum ieee80211_band band;
70692ad2 2961 size_t ie_len;
2a519311 2962
f4a11bb0
JB		 2963 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2964 return -EINVAL;
2965
79c97e97 2966 wiphy = &rdev->wiphy;
2a519311 2967
4c476991
JB		 2968 if (!rdev->ops->scan)
2969 return -EOPNOTSUPP;
2a519311 2970
4c476991
JB		 2971 if (rdev->scan_req)
2972 return -EBUSY;
2a519311
JB		 2973
2974 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2975 n_channels = validate_scan_freqs(
2976 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2977 if (!n_channels)
2978 return -EINVAL;
2a519311 2979 } else {
83f5e2cf
JB		 2980 n_channels = 0;
2981
2a519311
JB		 2982 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2983 if (wiphy->bands[band])
2984 n_channels += wiphy->bands[band]->n_channels;
2985 }
2986
2987 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2988 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2989 n_ssids++;
2990
4c476991
JB		 2991 if (n_ssids > wiphy->max_scan_ssids)
2992 return -EINVAL;
2a519311 2993
70692ad2
JM		 2994 if (info->attrs[NL80211_ATTR_IE])
2995 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2996 else
2997 ie_len = 0;
2998
4c476991
JB		 2999 if (ie_len > wiphy->max_scan_ie_len)
3000 return -EINVAL;
18a83659 3001
2a519311
JB		 3002 request = kzalloc(sizeof(*request)
3003 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3004 + sizeof(channel) * n_channels
3005 + ie_len, GFP_KERNEL);
4c476991
JB		 3006 if (!request)
3007 return -ENOMEM;
2a519311 3008
2a519311 3009 if (n_ssids)
5ba63533 3010 request->ssids = (void *)&request->channels[n_channels];
2a519311 3011 request->n_ssids = n_ssids;
70692ad2
JM		 3012 if (ie_len) {
3013 if (request->ssids)
3014 request->ie = (void *)(request->ssids + n_ssids);
3015 else
3016 request->ie = (void *)(request->channels + n_channels);
3017 }
2a519311 3018
584991dc 3019 i = 0;
2a519311
JB		 3020 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3021 /* user specified, bail out if channel not found */
2a519311 3022 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3023 struct ieee80211_channel *chan;
3024
3025 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3026
3027 if (!chan) {
2a519311
JB		 3028 err = -EINVAL;
3029 goto out_free;
3030 }
584991dc
JB		 3031
3032 /* ignore disabled channels */
3033 if (chan->flags & IEEE80211_CHAN_DISABLED)
3034 continue;
3035
3036 request->channels[i] = chan;
2a519311
JB		 3037 i++;
3038 }
3039 } else {
3040 /* all channels */
2a519311
JB		 3041 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3042 int j;
3043 if (!wiphy->bands[band])
3044 continue;
3045 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3046 struct ieee80211_channel *chan;
3047
3048 chan = &wiphy->bands[band]->channels[j];
3049
3050 if (chan->flags & IEEE80211_CHAN_DISABLED)
3051 continue;
3052
3053 request->channels[i] = chan;
2a519311
JB		 3054 i++;
3055 }
3056 }
3057 }
3058
584991dc
JB		 3059 if (!i) {
3060 err = -EINVAL;
3061 goto out_free;
3062 }
3063
3064 request->n_channels = i;
3065
2a519311
JB		 3066 i = 0;
3067 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3068 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3069 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3070 err = -EINVAL;
3071 goto out_free;
3072 }
3073 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3074 request->ssids[i].ssid_len = nla_len(attr);
3075 i++;
3076 }
3077 }
3078
70692ad2
JM		 3079 if (info->attrs[NL80211_ATTR_IE]) {
3080 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3081 memcpy((void *)request->ie,
3082 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3083 request->ie_len);
3084 }
3085
463d0183 3086 request->dev = dev;
79c97e97 3087 request->wiphy = &rdev->wiphy;
2a519311 3088
79c97e97
JB		 3089 rdev->scan_req = request;
3090 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3091
463d0183 3092 if (!err) {
79c97e97 3093 nl80211_send_scan_start(rdev, dev);
463d0183 3094 dev_hold(dev);
4c476991 3095 } else {
2a519311 3096 out_free:
79c97e97 3097 rdev->scan_req = NULL;
2a519311
JB		 3098 kfree(request);
3099 }
3b85875a 3100
2a519311
JB		 3101 return err;
3102}
3103
3104static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3105 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3106 struct wireless_dev *wdev,
3107 struct cfg80211_internal_bss *intbss)
2a519311 3108{
48ab905d 3109 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3110 void *hdr;
3111 struct nlattr *bss;
48ab905d
JB		 3112 int i;
3113
3114 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3115
3116 hdr = nl80211hdr_put(msg, pid, seq, flags,
3117 NL80211_CMD_NEW_SCAN_RESULTS);
3118 if (!hdr)
3119 return -1;
3120
f5ea9120 3121 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3123
3124 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3125 if (!bss)
3126 goto nla_put_failure;
3127 if (!is_zero_ether_addr(res->bssid))
3128 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3129 if (res->information_elements && res->len_information_elements)
3130 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3131 res->len_information_elements,
3132 res->information_elements);
34a6eddb
JM		 3133 if (res->beacon_ies && res->len_beacon_ies &&
3134 res->beacon_ies != res->information_elements)
3135 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3136 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3137 if (res->tsf)
3138 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3139 if (res->beacon_interval)
3140 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3141 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3142 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3143 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3144 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3145
77965c97 3146 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3147 case CFG80211_SIGNAL_TYPE_MBM:
3148 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3149 break;
3150 case CFG80211_SIGNAL_TYPE_UNSPEC:
3151 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3152 break;
3153 default:
3154 break;
3155 }
3156
48ab905d 3157 switch (wdev->iftype) {
074ac8df 3158 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3159 case NL80211_IFTYPE_STATION:
3160 if (intbss == wdev->current_bss)
3161 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3162 NL80211_BSS_STATUS_ASSOCIATED);
3163 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3164 if (intbss != wdev->auth_bsses[i])
3165 continue;
3166 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3167 NL80211_BSS_STATUS_AUTHENTICATED);
3168 break;
3169 }
3170 break;
3171 case NL80211_IFTYPE_ADHOC:
3172 if (intbss == wdev->current_bss)
3173 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3174 NL80211_BSS_STATUS_IBSS_JOINED);
3175 break;
3176 default:
3177 break;
3178 }
3179
2a519311
JB		 3180 nla_nest_end(msg, bss);
3181
3182 return genlmsg_end(msg, hdr);
3183
3184 nla_put_failure:
3185 genlmsg_cancel(msg, hdr);
3186 return -EMSGSIZE;
3187}
3188
3189static int nl80211_dump_scan(struct sk_buff *skb,
3190 struct netlink_callback *cb)
3191{
48ab905d
JB		 3192 struct cfg80211_registered_device *rdev;
3193 struct net_device *dev;
2a519311 3194 struct cfg80211_internal_bss *scan;
48ab905d 3195 struct wireless_dev *wdev;
2a519311
JB		 3196 int start = cb->args[1], idx = 0;
3197 int err;
3198
67748893
JB		 3199 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3200 if (err)
3201 return err;
2a519311 3202
48ab905d 3203 wdev = dev->ieee80211_ptr;
2a519311 3204
48ab905d
JB		 3205 wdev_lock(wdev);
3206 spin_lock_bh(&rdev->bss_lock);
3207 cfg80211_bss_expire(rdev);
3208
3209 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3210 if (++idx <= start)
3211 continue;
3212 if (nl80211_send_bss(skb,
3213 NETLINK_CB(cb->skb).pid,
3214 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3215 rdev, wdev, scan) < 0) {
2a519311 3216 idx--;
67748893 3217 break;
2a519311
JB		 3218 }
3219 }
3220
48ab905d
JB		 3221 spin_unlock_bh(&rdev->bss_lock);
3222 wdev_unlock(wdev);
2a519311
JB		 3223
3224 cb->args[1] = idx;
67748893 3225 nl80211_finish_netdev_dump(rdev);
2a519311 3226
67748893 3227 return skb->len;
2a519311
JB		 3228}
3229
61fa713c
HS		 3230static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3231 int flags, struct net_device *dev,
3232 struct survey_info *survey)
3233{
3234 void *hdr;
3235 struct nlattr *infoattr;
3236
3237 /* Survey without a channel doesn't make sense */
3238 if (!survey->channel)
3239 return -EINVAL;
3240
3241 hdr = nl80211hdr_put(msg, pid, seq, flags,
3242 NL80211_CMD_NEW_SURVEY_RESULTS);
3243 if (!hdr)
3244 return -ENOMEM;
3245
3246 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3247
3248 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3249 if (!infoattr)
3250 goto nla_put_failure;
3251
3252 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3253 survey->channel->center_freq);
3254 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3255 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3256 survey->noise);
17e5a808
FF		 3257 if (survey->filled & SURVEY_INFO_IN_USE)
3258 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3259 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3260 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3261 survey->channel_time);
3262 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3263 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3264 survey->channel_time_busy);
3265 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3266 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3267 survey->channel_time_ext_busy);
3268 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3269 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3270 survey->channel_time_rx);
3271 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3272 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3273 survey->channel_time_tx);
61fa713c
HS		 3274
3275 nla_nest_end(msg, infoattr);
3276
3277 return genlmsg_end(msg, hdr);
3278
3279 nla_put_failure:
3280 genlmsg_cancel(msg, hdr);
3281 return -EMSGSIZE;
3282}
3283
3284static int nl80211_dump_survey(struct sk_buff *skb,
3285 struct netlink_callback *cb)
3286{
3287 struct survey_info survey;
3288 struct cfg80211_registered_device *dev;
3289 struct net_device *netdev;
61fa713c
HS		 3290 int survey_idx = cb->args[1];
3291 int res;
3292
67748893
JB		 3293 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3294 if (res)
3295 return res;
61fa713c
HS		 3296
3297 if (!dev->ops->dump_survey) {
3298 res = -EOPNOTSUPP;
3299 goto out_err;
3300 }
3301
3302 while (1) {
3303 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3304 &survey);
3305 if (res == -ENOENT)
3306 break;
3307 if (res)
3308 goto out_err;
3309
3310 if (nl80211_send_survey(skb,
3311 NETLINK_CB(cb->skb).pid,
3312 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3313 netdev,
3314 &survey) < 0)
3315 goto out;
3316 survey_idx++;
3317 }
3318
3319 out:
3320 cb->args[1] = survey_idx;
3321 res = skb->len;
3322 out_err:
67748893 3323 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3324 return res;
3325}
3326
255e737e
JM		 3327static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3328{
b23aa676
SO		 3329 return auth_type <= NL80211_AUTHTYPE_MAX;
3330}
3331
3332static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3333{
3334 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3335 NL80211_WPA_VERSION_2));
3336}
3337
3338static bool nl80211_valid_akm_suite(u32 akm)
3339{
3340 return akm == WLAN_AKM_SUITE_8021X ||
3341 akm == WLAN_AKM_SUITE_PSK;
3342}
3343
3344static bool nl80211_valid_cipher_suite(u32 cipher)
3345{
3346 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3347 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3348 cipher == WLAN_CIPHER_SUITE_TKIP ||
3349 cipher == WLAN_CIPHER_SUITE_CCMP ||
3350 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3351}
3352
b23aa676 3353
636a5d36
JM		 3354static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3355{
4c476991
JB		 3356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3357 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3358 struct ieee80211_channel *chan;
3359 const u8 *bssid, *ssid, *ie = NULL;
3360 int err, ssid_len, ie_len = 0;
3361 enum nl80211_auth_type auth_type;
fffd0934 3362 struct key_parse key;
d5cdfacb 3363 bool local_state_change;
636a5d36 3364
f4a11bb0
JB		 3365 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3366 return -EINVAL;
3367
3368 if (!info->attrs[NL80211_ATTR_MAC])
3369 return -EINVAL;
3370
1778092e
JM		 3371 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3372 return -EINVAL;
3373
19957bb3
JB		 3374 if (!info->attrs[NL80211_ATTR_SSID])
3375 return -EINVAL;
3376
3377 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3378 return -EINVAL;
3379
fffd0934
JB		 3380 err = nl80211_parse_key(info, &key);
3381 if (err)
3382 return err;
3383
3384 if (key.idx >= 0) {
e31b8213
JB		 3385 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3386 return -EINVAL;
fffd0934
JB		 3387 if (!key.p.key || !key.p.key_len)
3388 return -EINVAL;
3389 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3390 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3391 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3392 key.p.key_len != WLAN_KEY_LEN_WEP104))
3393 return -EINVAL;
3394 if (key.idx > 4)
3395 return -EINVAL;
3396 } else {
3397 key.p.key_len = 0;
3398 key.p.key = NULL;
3399 }
3400
afea0b7a
JB		 3401 if (key.idx >= 0) {
3402 int i;
3403 bool ok = false;
3404 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3405 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3406 ok = true;
3407 break;
3408 }
3409 }
4c476991
JB		 3410 if (!ok)
3411 return -EINVAL;
afea0b7a
JB		 3412 }
3413
4c476991
JB		 3414 if (!rdev->ops->auth)
3415 return -EOPNOTSUPP;
636a5d36 3416
074ac8df 3417 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3418 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3419 return -EOPNOTSUPP;
eec60b03 3420
19957bb3 3421 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3422 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3423 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3424 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3425 return -EINVAL;
636a5d36 3426
19957bb3
JB		 3427 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3428 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3429
3430 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3431 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3432 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3433 }
3434
19957bb3 3435 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3436 if (!nl80211_valid_auth_type(auth_type))
3437 return -EINVAL;
636a5d36 3438
d5cdfacb
JM		 3439 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3440
4c476991
JB		 3441 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3442 ssid, ssid_len, ie, ie_len,
3443 key.p.key, key.p.key_len, key.idx,
3444 local_state_change);
636a5d36
JM		 3445}
3446
c0692b8f
JB		 3447static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3448 struct genl_info *info,
3dc27d25
JB		 3449 struct cfg80211_crypto_settings *settings,
3450 int cipher_limit)
b23aa676 3451{
c0b2bbd8
JB		 3452 memset(settings, 0, sizeof(*settings));
3453
b23aa676
SO		 3454 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3455
c0692b8f
JB		 3456 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3457 u16 proto;
3458 proto = nla_get_u16(
3459 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3460 settings->control_port_ethertype = cpu_to_be16(proto);
3461 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3462 proto != ETH_P_PAE)
3463 return -EINVAL;
3464 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3465 settings->control_port_no_encrypt = true;
3466 } else
3467 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3468
b23aa676
SO		 3469 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3470 void *data;
3471 int len, i;
3472
3473 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3474 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3475 settings->n_ciphers_pairwise = len / sizeof(u32);
3476
3477 if (len % sizeof(u32))
3478 return -EINVAL;
3479
3dc27d25 3480 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3481 return -EINVAL;
3482
3483 memcpy(settings->ciphers_pairwise, data, len);
3484
3485 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3486 if (!nl80211_valid_cipher_suite(
3487 settings->ciphers_pairwise[i]))
3488 return -EINVAL;
3489 }
3490
3491 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3492 settings->cipher_group =
3493 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3494 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3495 return -EINVAL;
3496 }
3497
3498 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3499 settings->wpa_versions =
3500 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3501 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3502 return -EINVAL;
3503 }
3504
3505 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3506 void *data;
3507 int len, i;
3508
3509 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3510 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3511 settings->n_akm_suites = len / sizeof(u32);
3512
3513 if (len % sizeof(u32))
3514 return -EINVAL;
3515
3516 memcpy(settings->akm_suites, data, len);
3517
3518 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3519 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3520 return -EINVAL;
3521 }
3522
3523 return 0;
3524}
3525
636a5d36
JM		 3526static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3527{
4c476991
JB		 3528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3529 struct net_device *dev = info->user_ptr[1];
19957bb3 3530 struct cfg80211_crypto_settings crypto;
f444de05 3531 struct ieee80211_channel *chan;
3e5d7649 3532 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3533 int err, ssid_len, ie_len = 0;
3534 bool use_mfp = false;
636a5d36 3535
f4a11bb0
JB		 3536 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3537 return -EINVAL;
3538
3539 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3540 !info->attrs[NL80211_ATTR_SSID] ||
3541 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3542 return -EINVAL;
3543
4c476991
JB		 3544 if (!rdev->ops->assoc)
3545 return -EOPNOTSUPP;
636a5d36 3546
074ac8df 3547 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3548 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3549 return -EOPNOTSUPP;
eec60b03 3550
19957bb3 3551 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3552
19957bb3
JB		 3553 chan = ieee80211_get_channel(&rdev->wiphy,
3554 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3555 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3556 return -EINVAL;
636a5d36 3557
19957bb3
JB		 3558 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3559 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3560
3561 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3562 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3563 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3564 }
3565
dc6382ce 3566 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3567 enum nl80211_mfp mfp =
dc6382ce 3568 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3569 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3570 use_mfp = true;
4c476991
JB		 3571 else if (mfp != NL80211_MFP_NO)
3572 return -EINVAL;
dc6382ce
JM		 3573 }
3574
3e5d7649
JB		 3575 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3576 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3577
c0692b8f 3578 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3579 if (!err)
3e5d7649
JB		 3580 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3581 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3582 &crypto);
636a5d36 3583
636a5d36
JM		 3584 return err;
3585}
3586
3587static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3588{
4c476991
JB		 3589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3590 struct net_device *dev = info->user_ptr[1];
19957bb3 3591 const u8 *ie = NULL, *bssid;
4c476991 3592 int ie_len = 0;
19957bb3 3593 u16 reason_code;
d5cdfacb 3594 bool local_state_change;
636a5d36 3595
f4a11bb0
JB		 3596 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3597 return -EINVAL;
3598
3599 if (!info->attrs[NL80211_ATTR_MAC])
3600 return -EINVAL;
3601
3602 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3603 return -EINVAL;
3604
4c476991
JB		 3605 if (!rdev->ops->deauth)
3606 return -EOPNOTSUPP;
636a5d36 3607
074ac8df 3608 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3609 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3610 return -EOPNOTSUPP;
eec60b03 3611
19957bb3 3612 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3613
19957bb3
JB		 3614 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3615 if (reason_code == 0) {
f4a11bb0 3616 /* Reason Code 0 is reserved */
4c476991 3617 return -EINVAL;
255e737e 3618 }
636a5d36
JM		 3619
3620 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3621 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3622 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3623 }
3624
d5cdfacb
JM		 3625 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3626
4c476991
JB		 3627 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3628 local_state_change);
636a5d36
JM		 3629}
3630
3631static int nl80211_disassociate(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];
19957bb3 3635 const u8 *ie = NULL, *bssid;
4c476991 3636 int ie_len = 0;
19957bb3 3637 u16 reason_code;
d5cdfacb 3638 bool local_state_change;
636a5d36 3639
f4a11bb0
JB		 3640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3641 return -EINVAL;
3642
3643 if (!info->attrs[NL80211_ATTR_MAC])
3644 return -EINVAL;
3645
3646 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3647 return -EINVAL;
3648
4c476991
JB		 3649 if (!rdev->ops->disassoc)
3650 return -EOPNOTSUPP;
636a5d36 3651
074ac8df 3652 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3653 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3654 return -EOPNOTSUPP;
eec60b03 3655
19957bb3 3656 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3657
19957bb3
JB		 3658 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3659 if (reason_code == 0) {
f4a11bb0 3660 /* Reason Code 0 is reserved */
4c476991 3661 return -EINVAL;
255e737e 3662 }
636a5d36
JM		 3663
3664 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3665 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3666 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3667 }
3668
d5cdfacb
JM		 3669 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3670
4c476991
JB		 3671 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3672 local_state_change);
636a5d36
JM		 3673}
3674
dd5b4cc7
FF		 3675static bool
3676nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3677 int mcast_rate[IEEE80211_NUM_BANDS],
3678 int rateval)
3679{
3680 struct wiphy *wiphy = &rdev->wiphy;
3681 bool found = false;
3682 int band, i;
3683
3684 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3685 struct ieee80211_supported_band *sband;
3686
3687 sband = wiphy->bands[band];
3688 if (!sband)
3689 continue;
3690
3691 for (i = 0; i < sband->n_bitrates; i++) {
3692 if (sband->bitrates[i].bitrate == rateval) {
3693 mcast_rate[band] = i + 1;
3694 found = true;
3695 break;
3696 }
3697 }
3698 }
3699
3700 return found;
3701}
3702
04a773ad
JB		 3703static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3704{
4c476991
JB		 3705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3706 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3707 struct cfg80211_ibss_params ibss;
3708 struct wiphy *wiphy;
fffd0934 3709 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3710 int err;
3711
8e30bc55
JB		 3712 memset(&ibss, 0, sizeof(ibss));
3713
04a773ad
JB		 3714 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3715 return -EINVAL;
3716
3717 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3718 !info->attrs[NL80211_ATTR_SSID] ||
3719 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3720 return -EINVAL;
3721
8e30bc55
JB		 3722 ibss.beacon_interval = 100;
3723
3724 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3725 ibss.beacon_interval =
3726 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3727 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3728 return -EINVAL;
3729 }
3730
4c476991
JB		 3731 if (!rdev->ops->join_ibss)
3732 return -EOPNOTSUPP;
04a773ad 3733
4c476991
JB		 3734 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3735 return -EOPNOTSUPP;
04a773ad 3736
79c97e97 3737 wiphy = &rdev->wiphy;
04a773ad
JB		 3738
3739 if (info->attrs[NL80211_ATTR_MAC])
3740 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3741 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3742 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3743
3744 if (info->attrs[NL80211_ATTR_IE]) {
3745 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3746 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3747 }
3748
3749 ibss.channel = ieee80211_get_channel(wiphy,
3750 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3751 if (!ibss.channel ||
3752 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3753 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3754 return -EINVAL;
04a773ad
JB		 3755
3756 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3757 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3758
fbd2c8dc
TP		 3759 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3760 u8 *rates =
3761 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3762 int n_rates =
3763 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3764 struct ieee80211_supported_band *sband =
3765 wiphy->bands[ibss.channel->band];
3766 int i, j;
3767
4c476991
JB		 3768 if (n_rates == 0)
3769 return -EINVAL;
fbd2c8dc
TP		 3770
3771 for (i = 0; i < n_rates; i++) {
3772 int rate = (rates[i] & 0x7f) * 5;
3773 bool found = false;
3774
3775 for (j = 0; j < sband->n_bitrates; j++) {
3776 if (sband->bitrates[j].bitrate == rate) {
3777 found = true;
3778 ibss.basic_rates |= BIT(j);
3779 break;
3780 }
3781 }
4c476991
JB		 3782 if (!found)
3783 return -EINVAL;
fbd2c8dc 3784 }
fbd2c8dc 3785 }
dd5b4cc7
FF		 3786
3787 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3788 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3789 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3790 return -EINVAL;
fbd2c8dc 3791
4c476991
JB		 3792 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3793 connkeys = nl80211_parse_connkeys(rdev,
3794 info->attrs[NL80211_ATTR_KEYS]);
3795 if (IS_ERR(connkeys))
3796 return PTR_ERR(connkeys);
3797 }
04a773ad 3798
4c476991 3799 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3800 if (err)
3801 kfree(connkeys);
04a773ad
JB		 3802 return err;
3803}
3804
3805static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3806{
4c476991
JB		 3807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3808 struct net_device *dev = info->user_ptr[1];
04a773ad 3809
4c476991
JB		 3810 if (!rdev->ops->leave_ibss)
3811 return -EOPNOTSUPP;
04a773ad 3812
4c476991
JB		 3813 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3814 return -EOPNOTSUPP;
04a773ad 3815
4c476991 3816 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3817}
3818
aff89a9b
JB		 3819#ifdef CONFIG_NL80211_TESTMODE
3820static struct genl_multicast_group nl80211_testmode_mcgrp = {
3821 .name = "testmode",
3822};
3823
3824static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3825{
4c476991 3826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3827 int err;
3828
3829 if (!info->attrs[NL80211_ATTR_TESTDATA])
3830 return -EINVAL;
3831
aff89a9b
JB		 3832 err = -EOPNOTSUPP;
3833 if (rdev->ops->testmode_cmd) {
3834 rdev->testmode_info = info;
3835 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3836 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3837 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3838 rdev->testmode_info = NULL;
3839 }
3840
aff89a9b
JB		 3841 return err;
3842}
3843
3844static struct sk_buff *
3845__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3846 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3847{
3848 struct sk_buff *skb;
3849 void *hdr;
3850 struct nlattr *data;
3851
3852 skb = nlmsg_new(approxlen + 100, gfp);
3853 if (!skb)
3854 return NULL;
3855
3856 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3857 if (!hdr) {
3858 kfree_skb(skb);
3859 return NULL;
3860 }
3861
3862 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3863 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3864
3865 ((void **)skb->cb)[0] = rdev;
3866 ((void **)skb->cb)[1] = hdr;
3867 ((void **)skb->cb)[2] = data;
3868
3869 return skb;
3870
3871 nla_put_failure:
3872 kfree_skb(skb);
3873 return NULL;
3874}
3875
3876struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3877 int approxlen)
3878{
3879 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3880
3881 if (WARN_ON(!rdev->testmode_info))
3882 return NULL;
3883
3884 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3885 rdev->testmode_info->snd_pid,
3886 rdev->testmode_info->snd_seq,
3887 GFP_KERNEL);
3888}
3889EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3890
3891int cfg80211_testmode_reply(struct sk_buff *skb)
3892{
3893 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3894 void *hdr = ((void **)skb->cb)[1];
3895 struct nlattr *data = ((void **)skb->cb)[2];
3896
3897 if (WARN_ON(!rdev->testmode_info)) {
3898 kfree_skb(skb);
3899 return -EINVAL;
3900 }
3901
3902 nla_nest_end(skb, data);
3903 genlmsg_end(skb, hdr);
3904 return genlmsg_reply(skb, rdev->testmode_info);
3905}
3906EXPORT_SYMBOL(cfg80211_testmode_reply);
3907
3908struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3909 int approxlen, gfp_t gfp)
3910{
3911 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3912
3913 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3914}
3915EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3916
3917void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3918{
3919 void *hdr = ((void **)skb->cb)[1];
3920 struct nlattr *data = ((void **)skb->cb)[2];
3921
3922 nla_nest_end(skb, data);
3923 genlmsg_end(skb, hdr);
3924 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3925}
3926EXPORT_SYMBOL(cfg80211_testmode_event);
3927#endif
3928
b23aa676
SO		 3929static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3930{
4c476991
JB		 3931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3932 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3933 struct cfg80211_connect_params connect;
3934 struct wiphy *wiphy;
fffd0934 3935 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3936 int err;
3937
3938 memset(&connect, 0, sizeof(connect));
3939
3940 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3941 return -EINVAL;
3942
3943 if (!info->attrs[NL80211_ATTR_SSID] ||
3944 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3945 return -EINVAL;
3946
3947 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3948 connect.auth_type =
3949 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3950 if (!nl80211_valid_auth_type(connect.auth_type))
3951 return -EINVAL;
3952 } else
3953 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3954
3955 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3956
c0692b8f 3957 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3958 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3959 if (err)
3960 return err;
b23aa676 3961
074ac8df 3962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3963 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3964 return -EOPNOTSUPP;
b23aa676 3965
79c97e97 3966 wiphy = &rdev->wiphy;
b23aa676 3967
b23aa676
SO		 3968 if (info->attrs[NL80211_ATTR_MAC])
3969 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3970 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3971 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3972
3973 if (info->attrs[NL80211_ATTR_IE]) {
3974 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3975 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3976 }
3977
3978 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3979 connect.channel =
3980 ieee80211_get_channel(wiphy,
3981 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3982 if (!connect.channel ||
4c476991
JB		 3983 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3984 return -EINVAL;
b23aa676
SO		 3985 }
3986
fffd0934
JB		 3987 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3988 connkeys = nl80211_parse_connkeys(rdev,
3989 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3990 if (IS_ERR(connkeys))
3991 return PTR_ERR(connkeys);
fffd0934
JB		 3992 }
3993
3994 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 3995 if (err)
3996 kfree(connkeys);
b23aa676
SO		 3997 return err;
3998}
3999
4000static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4001{
4c476991
JB		 4002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4003 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4004 u16 reason;
4005
4006 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4007 reason = WLAN_REASON_DEAUTH_LEAVING;
4008 else
4009 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4010
4011 if (reason == 0)
4012 return -EINVAL;
4013
074ac8df 4014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4016 return -EOPNOTSUPP;
b23aa676 4017
4c476991 4018 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4019}
4020
463d0183
JB		 4021static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4022{
4c476991 4023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4024 struct net *net;
4025 int err;
4026 u32 pid;
4027
4028 if (!info->attrs[NL80211_ATTR_PID])
4029 return -EINVAL;
4030
4031 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4032
463d0183 4033 net = get_net_ns_by_pid(pid);
4c476991
JB		 4034 if (IS_ERR(net))
4035 return PTR_ERR(net);
463d0183
JB		 4036
4037 err = 0;
4038
4039 /* check if anything to do */
4c476991
JB		 4040 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4041 err = cfg80211_switch_netns(rdev, net);
463d0183 4042
463d0183 4043 put_net(net);
463d0183
JB		 4044 return err;
4045}
4046
67fbb16b
SO		 4047static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4048{
4c476991 4049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4050 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4051 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4052 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4053 struct cfg80211_pmksa pmksa;
4054
4055 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4056
4057 if (!info->attrs[NL80211_ATTR_MAC])
4058 return -EINVAL;
4059
4060 if (!info->attrs[NL80211_ATTR_PMKID])
4061 return -EINVAL;
4062
67fbb16b
SO		 4063 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4064 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4065
074ac8df 4066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4068 return -EOPNOTSUPP;
67fbb16b
SO		 4069
4070 switch (info->genlhdr->cmd) {
4071 case NL80211_CMD_SET_PMKSA:
4072 rdev_ops = rdev->ops->set_pmksa;
4073 break;
4074 case NL80211_CMD_DEL_PMKSA:
4075 rdev_ops = rdev->ops->del_pmksa;
4076 break;
4077 default:
4078 WARN_ON(1);
4079 break;
4080 }
4081
4c476991
JB		 4082 if (!rdev_ops)
4083 return -EOPNOTSUPP;
67fbb16b 4084
4c476991 4085 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4086}
4087
4088static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4089{
4c476991
JB		 4090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4091 struct net_device *dev = info->user_ptr[1];
67fbb16b 4092
074ac8df 4093 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4094 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4095 return -EOPNOTSUPP;
67fbb16b 4096
4c476991
JB		 4097 if (!rdev->ops->flush_pmksa)
4098 return -EOPNOTSUPP;
67fbb16b 4099
4c476991 4100 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4101}
4102
9588bbd5
JM		 4103static int nl80211_remain_on_channel(struct sk_buff *skb,
4104 struct genl_info *info)
4105{
4c476991
JB		 4106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4107 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4108 struct ieee80211_channel *chan;
4109 struct sk_buff *msg;
4110 void *hdr;
4111 u64 cookie;
4112 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4113 u32 freq, duration;
4114 int err;
4115
4116 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4117 !info->attrs[NL80211_ATTR_DURATION])
4118 return -EINVAL;
4119
4120 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4121
4122 /*
4123 * We should be on that channel for at least one jiffie,
4124 * and more than 5 seconds seems excessive.
4125 */
4126 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4127 return -EINVAL;
4128
4c476991
JB		 4129 if (!rdev->ops->remain_on_channel)
4130 return -EOPNOTSUPP;
9588bbd5 4131
9588bbd5
JM		 4132 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4133 channel_type = nla_get_u32(
4134 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4135 if (channel_type != NL80211_CHAN_NO_HT &&
4136 channel_type != NL80211_CHAN_HT20 &&
4137 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4138 channel_type != NL80211_CHAN_HT40MINUS)
4139 return -EINVAL;
9588bbd5
JM		 4140 }
4141
4142 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4143 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4144 if (chan == NULL)
4145 return -EINVAL;
9588bbd5
JM		 4146
4147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4148 if (!msg)
4149 return -ENOMEM;
9588bbd5
JM		 4150
4151 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4152 NL80211_CMD_REMAIN_ON_CHANNEL);
4153
4154 if (IS_ERR(hdr)) {
4155 err = PTR_ERR(hdr);
4156 goto free_msg;
4157 }
4158
4159 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4160 channel_type, duration, &cookie);
4161
4162 if (err)
4163 goto free_msg;
4164
4165 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4166
4167 genlmsg_end(msg, hdr);
4c476991
JB		 4168
4169 return genlmsg_reply(msg, info);
9588bbd5
JM		 4170
4171 nla_put_failure:
4172 err = -ENOBUFS;
4173 free_msg:
4174 nlmsg_free(msg);
9588bbd5
JM		 4175 return err;
4176}
4177
4178static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4179 struct genl_info *info)
4180{
4c476991
JB		 4181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4182 struct net_device *dev = info->user_ptr[1];
9588bbd5 4183 u64 cookie;
9588bbd5
JM		 4184
4185 if (!info->attrs[NL80211_ATTR_COOKIE])
4186 return -EINVAL;
4187
4c476991
JB		 4188 if (!rdev->ops->cancel_remain_on_channel)
4189 return -EOPNOTSUPP;
9588bbd5 4190
9588bbd5
JM		 4191 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4192
4c476991 4193 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4194}
4195
13ae75b1
JM		 4196static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4197 u8 *rates, u8 rates_len)
4198{
4199 u8 i;
4200 u32 mask = 0;
4201
4202 for (i = 0; i < rates_len; i++) {
4203 int rate = (rates[i] & 0x7f) * 5;
4204 int ridx;
4205 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4206 struct ieee80211_rate *srate =
4207 &sband->bitrates[ridx];
4208 if (rate == srate->bitrate) {
4209 mask |= 1 << ridx;
4210 break;
4211 }
4212 }
4213 if (ridx == sband->n_bitrates)
4214 return 0; /* rate not found */
4215 }
4216
4217 return mask;
4218}
4219
b54452b0 4220static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4221 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4222 .len = NL80211_MAX_SUPP_RATES },
4223};
4224
4225static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4226 struct genl_info *info)
4227{
4228 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4230 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4231 int rem, i;
4232 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4233 struct nlattr *tx_rates;
4234 struct ieee80211_supported_band *sband;
4235
4236 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4237 return -EINVAL;
4238
4c476991
JB		 4239 if (!rdev->ops->set_bitrate_mask)
4240 return -EOPNOTSUPP;
13ae75b1
JM		 4241
4242 memset(&mask, 0, sizeof(mask));
4243 /* Default to all rates enabled */
4244 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4245 sband = rdev->wiphy.bands[i];
4246 mask.control[i].legacy =
4247 sband ? (1 << sband->n_bitrates) - 1 : 0;
4248 }
4249
4250 /*
4251 * The nested attribute uses enum nl80211_band as the index. This maps
4252 * directly to the enum ieee80211_band values used in cfg80211.
4253 */
4254 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4255 {
4256 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4257 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4258 return -EINVAL;
13ae75b1 4259 sband = rdev->wiphy.bands[band];
4c476991
JB		 4260 if (sband == NULL)
4261 return -EINVAL;
13ae75b1
JM		 4262 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4263 nla_len(tx_rates), nl80211_txattr_policy);
4264 if (tb[NL80211_TXRATE_LEGACY]) {
4265 mask.control[band].legacy = rateset_to_mask(
4266 sband,
4267 nla_data(tb[NL80211_TXRATE_LEGACY]),
4268 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4269 if (mask.control[band].legacy == 0)
4270 return -EINVAL;
13ae75b1
JM		 4271 }
4272 }
4273
4c476991 4274 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4275}
4276
2e161f78 4277static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4278{
4c476991
JB		 4279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4280 struct net_device *dev = info->user_ptr[1];
2e161f78 4281 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4282
4283 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4284 return -EINVAL;
4285
2e161f78
JB		 4286 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4287 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4288
9d38d85d 4289 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4290 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4291 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4292 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4293 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4295 return -EOPNOTSUPP;
026331c4
JM		 4296
4297 /* not much point in registering if we can't reply */
4c476991
JB		 4298 if (!rdev->ops->mgmt_tx)
4299 return -EOPNOTSUPP;
026331c4 4300
4c476991 4301 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4302 frame_type,
026331c4
JM		 4303 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4304 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4305}
4306
2e161f78 4307static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4308{
4c476991
JB		 4309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4310 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4311 struct ieee80211_channel *chan;
4312 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4313 bool channel_type_valid = false;
026331c4
JM		 4314 u32 freq;
4315 int err;
4316 void *hdr;
4317 u64 cookie;
4318 struct sk_buff *msg;
f7ca38df
JB		 4319 unsigned int wait = 0;
4320 bool offchan;
026331c4
JM		 4321
4322 if (!info->attrs[NL80211_ATTR_FRAME] ||
4323 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4324 return -EINVAL;
4325
4c476991
JB		 4326 if (!rdev->ops->mgmt_tx)
4327 return -EOPNOTSUPP;
026331c4 4328
9d38d85d 4329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4332 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4333 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4334 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4335 return -EOPNOTSUPP;
026331c4 4336
f7ca38df
JB		 4337 if (info->attrs[NL80211_ATTR_DURATION]) {
4338 if (!rdev->ops->mgmt_tx_cancel_wait)
4339 return -EINVAL;
4340 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4341 }
4342
026331c4
JM		 4343 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4344 channel_type = nla_get_u32(
4345 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4346 if (channel_type != NL80211_CHAN_NO_HT &&
4347 channel_type != NL80211_CHAN_HT20 &&
4348 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4349 channel_type != NL80211_CHAN_HT40MINUS)
4350 return -EINVAL;
252aa631 4351 channel_type_valid = true;
026331c4
JM		 4352 }
4353
f7ca38df
JB		 4354 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4355
026331c4
JM		 4356 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4357 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4358 if (chan == NULL)
4359 return -EINVAL;
026331c4
JM		 4360
4361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4362 if (!msg)
4363 return -ENOMEM;
026331c4
JM		 4364
4365 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4366 NL80211_CMD_FRAME);
026331c4
JM		 4367
4368 if (IS_ERR(hdr)) {
4369 err = PTR_ERR(hdr);
4370 goto free_msg;
4371 }
f7ca38df
JB		 4372 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4373 channel_type_valid, wait,
2e161f78
JB		 4374 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4375 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4376 &cookie);
026331c4
JM		 4377 if (err)
4378 goto free_msg;
4379
4380 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4381
4382 genlmsg_end(msg, hdr);
4c476991 4383 return genlmsg_reply(msg, info);
026331c4
JM		 4384
4385 nla_put_failure:
4386 err = -ENOBUFS;
4387 free_msg:
4388 nlmsg_free(msg);
026331c4
JM		 4389 return err;
4390}
4391
f7ca38df
JB		 4392static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4393{
4394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4395 struct net_device *dev = info->user_ptr[1];
4396 u64 cookie;
4397
4398 if (!info->attrs[NL80211_ATTR_COOKIE])
4399 return -EINVAL;
4400
4401 if (!rdev->ops->mgmt_tx_cancel_wait)
4402 return -EOPNOTSUPP;
4403
4404 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4405 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4407 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4410 return -EOPNOTSUPP;
4411
4412 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4413
4414 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4415}
4416
ffb9eb3d
KV		 4417static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4418{
4c476991 4419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4420 struct wireless_dev *wdev;
4c476991 4421 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4422 u8 ps_state;
4423 bool state;
4424 int err;
4425
4c476991
JB		 4426 if (!info->attrs[NL80211_ATTR_PS_STATE])
4427 return -EINVAL;
ffb9eb3d
KV		 4428
4429 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4430
4c476991
JB		 4431 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4432 return -EINVAL;
ffb9eb3d
KV		 4433
4434 wdev = dev->ieee80211_ptr;
4435
4c476991
JB		 4436 if (!rdev->ops->set_power_mgmt)
4437 return -EOPNOTSUPP;
ffb9eb3d
KV		 4438
4439 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4440
4441 if (state == wdev->ps)
4c476991 4442 return 0;
ffb9eb3d 4443
4c476991
JB		 4444 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4445 wdev->ps_timeout);
4446 if (!err)
4447 wdev->ps = state;
ffb9eb3d
KV		 4448 return err;
4449}
4450
4451static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4452{
4c476991 4453 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4454 enum nl80211_ps_state ps_state;
4455 struct wireless_dev *wdev;
4c476991 4456 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4457 struct sk_buff *msg;
4458 void *hdr;
4459 int err;
4460
ffb9eb3d
KV		 4461 wdev = dev->ieee80211_ptr;
4462
4c476991
JB		 4463 if (!rdev->ops->set_power_mgmt)
4464 return -EOPNOTSUPP;
ffb9eb3d
KV		 4465
4466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4467 if (!msg)
4468 return -ENOMEM;
ffb9eb3d
KV		 4469
4470 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4471 NL80211_CMD_GET_POWER_SAVE);
4472 if (!hdr) {
4c476991 4473 err = -ENOBUFS;
ffb9eb3d
KV		 4474 goto free_msg;
4475 }
4476
4477 if (wdev->ps)
4478 ps_state = NL80211_PS_ENABLED;
4479 else
4480 ps_state = NL80211_PS_DISABLED;
4481
4482 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4483
4484 genlmsg_end(msg, hdr);
4c476991 4485 return genlmsg_reply(msg, info);
ffb9eb3d 4486
4c476991 4487 nla_put_failure:
ffb9eb3d 4488 err = -ENOBUFS;
4c476991 4489 free_msg:
ffb9eb3d 4490 nlmsg_free(msg);
ffb9eb3d
KV		 4491 return err;
4492}
4493
d6dc1a38
JO		 4494static struct nla_policy
4495nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4496 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4497 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4498 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4499};
4500
4501static int nl80211_set_cqm_rssi(struct genl_info *info,
4502 s32 threshold, u32 hysteresis)
4503{
4c476991 4504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4505 struct wireless_dev *wdev;
4c476991 4506 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4507
4508 if (threshold > 0)
4509 return -EINVAL;
4510
d6dc1a38
JO		 4511 wdev = dev->ieee80211_ptr;
4512
4c476991
JB		 4513 if (!rdev->ops->set_cqm_rssi_config)
4514 return -EOPNOTSUPP;
d6dc1a38 4515
074ac8df 4516 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4517 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4518 return -EOPNOTSUPP;
d6dc1a38 4519
4c476991
JB		 4520 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4521 threshold, hysteresis);
d6dc1a38
JO		 4522}
4523
4524static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4525{
4526 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4527 struct nlattr *cqm;
4528 int err;
4529
4530 cqm = info->attrs[NL80211_ATTR_CQM];
4531 if (!cqm) {
4532 err = -EINVAL;
4533 goto out;
4534 }
4535
4536 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4537 nl80211_attr_cqm_policy);
4538 if (err)
4539 goto out;
4540
4541 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4542 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4543 s32 threshold;
4544 u32 hysteresis;
4545 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4546 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4547 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4548 } else
4549 err = -EINVAL;
4550
4551out:
4552 return err;
4553}
4554
29cbe68c
JB		 4555static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
4556{
4557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4558 struct net_device *dev = info->user_ptr[1];
4559 struct mesh_config cfg;
4560 int err;
4561
4562 /* start with default */
4563 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
4564
4565 if (info->attrs[NL80211_ATTR_MESH_PARAMS]) {
4566 /* and parse parameters if given */
4567 err = nl80211_parse_mesh_params(info, &cfg, NULL);
4568 if (err)
4569 return err;
4570 }
4571
4572 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
4573 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
4574 return -EINVAL;
4575
4576 return cfg80211_join_mesh(rdev, dev,
4577 nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
4578 nla_len(info->attrs[NL80211_ATTR_MESH_ID]),
4579 &cfg);
4580}
4581
4582static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
4583{
4584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4585 struct net_device *dev = info->user_ptr[1];
4586
4587 return cfg80211_leave_mesh(rdev, dev);
4588}
4589
4c476991
JB		 4590#define NL80211_FLAG_NEED_WIPHY 0x01
4591#define NL80211_FLAG_NEED_NETDEV 0x02
4592#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4593#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4594#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4595 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4596
4597static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4598 struct genl_info *info)
4599{
4600 struct cfg80211_registered_device *rdev;
4601 struct net_device *dev;
4602 int err;
4603 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4604
4605 if (rtnl)
4606 rtnl_lock();
4607
4608 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4609 rdev = cfg80211_get_dev_from_info(info);
4610 if (IS_ERR(rdev)) {
4611 if (rtnl)
4612 rtnl_unlock();
4613 return PTR_ERR(rdev);
4614 }
4615 info->user_ptr[0] = rdev;
4616 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4617 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4618 if (err) {
4619 if (rtnl)
4620 rtnl_unlock();
4621 return err;
4622 }
41265714
JB		 4623 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4624 !netif_running(dev)) {
d537f5fd
JB		 4625 cfg80211_unlock_rdev(rdev);
4626 dev_put(dev);
41265714
JB		 4627 if (rtnl)
4628 rtnl_unlock();
4629 return -ENETDOWN;
4630 }
4c476991
JB		 4631 info->user_ptr[0] = rdev;
4632 info->user_ptr[1] = dev;
4633 }
4634
4635 return 0;
4636}
4637
4638static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4639 struct genl_info *info)
4640{
4641 if (info->user_ptr[0])
4642 cfg80211_unlock_rdev(info->user_ptr[0]);
4643 if (info->user_ptr[1])
4644 dev_put(info->user_ptr[1]);
4645 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4646 rtnl_unlock();
4647}
4648
55682965
JB		 4649static struct genl_ops nl80211_ops[] = {
4650 {
4651 .cmd = NL80211_CMD_GET_WIPHY,
4652 .doit = nl80211_get_wiphy,
4653 .dumpit = nl80211_dump_wiphy,
4654 .policy = nl80211_policy,
4655 /* can be retrieved by unprivileged users */
4c476991 4656 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4657 },
4658 {
4659 .cmd = NL80211_CMD_SET_WIPHY,
4660 .doit = nl80211_set_wiphy,
4661 .policy = nl80211_policy,
4662 .flags = GENL_ADMIN_PERM,
4c476991 4663 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4664 },
4665 {
4666 .cmd = NL80211_CMD_GET_INTERFACE,
4667 .doit = nl80211_get_interface,
4668 .dumpit = nl80211_dump_interface,
4669 .policy = nl80211_policy,
4670 /* can be retrieved by unprivileged users */
4c476991 4671 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4672 },
4673 {
4674 .cmd = NL80211_CMD_SET_INTERFACE,
4675 .doit = nl80211_set_interface,
4676 .policy = nl80211_policy,
4677 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4678 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4679 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4680 },
4681 {
4682 .cmd = NL80211_CMD_NEW_INTERFACE,
4683 .doit = nl80211_new_interface,
4684 .policy = nl80211_policy,
4685 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4686 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4687 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4688 },
4689 {
4690 .cmd = NL80211_CMD_DEL_INTERFACE,
4691 .doit = nl80211_del_interface,
4692 .policy = nl80211_policy,
41ade00f 4693 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4694 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4695 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4696 },
4697 {
4698 .cmd = NL80211_CMD_GET_KEY,
4699 .doit = nl80211_get_key,
4700 .policy = nl80211_policy,
4701 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4702 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4703 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4704 },
4705 {
4706 .cmd = NL80211_CMD_SET_KEY,
4707 .doit = nl80211_set_key,
4708 .policy = nl80211_policy,
4709 .flags = GENL_ADMIN_PERM,
41265714 4710 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4711 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4712 },
4713 {
4714 .cmd = NL80211_CMD_NEW_KEY,
4715 .doit = nl80211_new_key,
4716 .policy = nl80211_policy,
4717 .flags = GENL_ADMIN_PERM,
41265714 4718 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4719 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4720 },
4721 {
4722 .cmd = NL80211_CMD_DEL_KEY,
4723 .doit = nl80211_del_key,
4724 .policy = nl80211_policy,
55682965 4725 .flags = GENL_ADMIN_PERM,
41265714 4726 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4727 NL80211_FLAG_NEED_RTNL,
55682965 4728 },
ed1b6cc7
JB		 4729 {
4730 .cmd = NL80211_CMD_SET_BEACON,
4731 .policy = nl80211_policy,
4732 .flags = GENL_ADMIN_PERM,
4733 .doit = nl80211_addset_beacon,
4c476991
JB		 4734 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4735 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4736 },
4737 {
4738 .cmd = NL80211_CMD_NEW_BEACON,
4739 .policy = nl80211_policy,
4740 .flags = GENL_ADMIN_PERM,
4741 .doit = nl80211_addset_beacon,
4c476991
JB		 4742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4743 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4744 },
4745 {
4746 .cmd = NL80211_CMD_DEL_BEACON,
4747 .policy = nl80211_policy,
4748 .flags = GENL_ADMIN_PERM,
4749 .doit = nl80211_del_beacon,
4c476991
JB		 4750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4751 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4752 },
5727ef1b
JB		 4753 {
4754 .cmd = NL80211_CMD_GET_STATION,
4755 .doit = nl80211_get_station,
2ec600d6 4756 .dumpit = nl80211_dump_station,
5727ef1b 4757 .policy = nl80211_policy,
4c476991
JB		 4758 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4759 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4760 },
4761 {
4762 .cmd = NL80211_CMD_SET_STATION,
4763 .doit = nl80211_set_station,
4764 .policy = nl80211_policy,
4765 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4766 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4767 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4768 },
4769 {
4770 .cmd = NL80211_CMD_NEW_STATION,
4771 .doit = nl80211_new_station,
4772 .policy = nl80211_policy,
4773 .flags = GENL_ADMIN_PERM,
41265714 4774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4775 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4776 },
4777 {
4778 .cmd = NL80211_CMD_DEL_STATION,
4779 .doit = nl80211_del_station,
4780 .policy = nl80211_policy,
2ec600d6 4781 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4782 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4783 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4784 },
4785 {
4786 .cmd = NL80211_CMD_GET_MPATH,
4787 .doit = nl80211_get_mpath,
4788 .dumpit = nl80211_dump_mpath,
4789 .policy = nl80211_policy,
4790 .flags = GENL_ADMIN_PERM,
41265714 4791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4792 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4793 },
4794 {
4795 .cmd = NL80211_CMD_SET_MPATH,
4796 .doit = nl80211_set_mpath,
4797 .policy = nl80211_policy,
4798 .flags = GENL_ADMIN_PERM,
41265714 4799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4800 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4801 },
4802 {
4803 .cmd = NL80211_CMD_NEW_MPATH,
4804 .doit = nl80211_new_mpath,
4805 .policy = nl80211_policy,
4806 .flags = GENL_ADMIN_PERM,
41265714 4807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4808 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4809 },
4810 {
4811 .cmd = NL80211_CMD_DEL_MPATH,
4812 .doit = nl80211_del_mpath,
4813 .policy = nl80211_policy,
9f1ba906 4814 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4816 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4817 },
4818 {
4819 .cmd = NL80211_CMD_SET_BSS,
4820 .doit = nl80211_set_bss,
4821 .policy = nl80211_policy,
b2e1b302 4822 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4823 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4824 NL80211_FLAG_NEED_RTNL,
b2e1b302 4825 },
f130347c
LR		 4826 {
4827 .cmd = NL80211_CMD_GET_REG,
4828 .doit = nl80211_get_reg,
4829 .policy = nl80211_policy,
4830 /* can be retrieved by unprivileged users */
4831 },
b2e1b302
LR		 4832 {
4833 .cmd = NL80211_CMD_SET_REG,
4834 .doit = nl80211_set_reg,
4835 .policy = nl80211_policy,
4836 .flags = GENL_ADMIN_PERM,
4837 },
4838 {
4839 .cmd = NL80211_CMD_REQ_SET_REG,
4840 .doit = nl80211_req_set_reg,
4841 .policy = nl80211_policy,
93da9cc1 4842 .flags = GENL_ADMIN_PERM,
4843 },
4844 {
4845 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4846 .doit = nl80211_get_mesh_params,
4847 .policy = nl80211_policy,
4848 /* can be retrieved by unprivileged users */
4c476991
JB		 4849 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4850 NL80211_FLAG_NEED_RTNL,
93da9cc1 4851 },
4852 {
4853 .cmd = NL80211_CMD_SET_MESH_PARAMS,
29cbe68c 4854 .doit = nl80211_update_mesh_params,
93da9cc1 4855 .policy = nl80211_policy,
9aed3cc1 4856 .flags = GENL_ADMIN_PERM,
29cbe68c 4857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4858 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4859 },
2a519311
JB		 4860 {
4861 .cmd = NL80211_CMD_TRIGGER_SCAN,
4862 .doit = nl80211_trigger_scan,
4863 .policy = nl80211_policy,
4864 .flags = GENL_ADMIN_PERM,
41265714 4865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4866 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4867 },
4868 {
4869 .cmd = NL80211_CMD_GET_SCAN,
4870 .policy = nl80211_policy,
4871 .dumpit = nl80211_dump_scan,
4872 },
636a5d36
JM		 4873 {
4874 .cmd = NL80211_CMD_AUTHENTICATE,
4875 .doit = nl80211_authenticate,
4876 .policy = nl80211_policy,
4877 .flags = GENL_ADMIN_PERM,
41265714 4878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4879 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4880 },
4881 {
4882 .cmd = NL80211_CMD_ASSOCIATE,
4883 .doit = nl80211_associate,
4884 .policy = nl80211_policy,
4885 .flags = GENL_ADMIN_PERM,
41265714 4886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4887 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4888 },
4889 {
4890 .cmd = NL80211_CMD_DEAUTHENTICATE,
4891 .doit = nl80211_deauthenticate,
4892 .policy = nl80211_policy,
4893 .flags = GENL_ADMIN_PERM,
41265714 4894 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4895 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4896 },
4897 {
4898 .cmd = NL80211_CMD_DISASSOCIATE,
4899 .doit = nl80211_disassociate,
4900 .policy = nl80211_policy,
4901 .flags = GENL_ADMIN_PERM,
41265714 4902 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4903 NL80211_FLAG_NEED_RTNL,
636a5d36 4904 },
04a773ad
JB		 4905 {
4906 .cmd = NL80211_CMD_JOIN_IBSS,
4907 .doit = nl80211_join_ibss,
4908 .policy = nl80211_policy,
4909 .flags = GENL_ADMIN_PERM,
41265714 4910 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4911 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4912 },
4913 {
4914 .cmd = NL80211_CMD_LEAVE_IBSS,
4915 .doit = nl80211_leave_ibss,
4916 .policy = nl80211_policy,
4917 .flags = GENL_ADMIN_PERM,
41265714 4918 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4919 NL80211_FLAG_NEED_RTNL,
04a773ad 4920 },
aff89a9b
JB		 4921#ifdef CONFIG_NL80211_TESTMODE
4922 {
4923 .cmd = NL80211_CMD_TESTMODE,
4924 .doit = nl80211_testmode_do,
4925 .policy = nl80211_policy,
4926 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4927 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4928 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4929 },
4930#endif
b23aa676
SO		 4931 {
4932 .cmd = NL80211_CMD_CONNECT,
4933 .doit = nl80211_connect,
4934 .policy = nl80211_policy,
4935 .flags = GENL_ADMIN_PERM,
41265714 4936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4937 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4938 },
4939 {
4940 .cmd = NL80211_CMD_DISCONNECT,
4941 .doit = nl80211_disconnect,
4942 .policy = nl80211_policy,
4943 .flags = GENL_ADMIN_PERM,
41265714 4944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4945 NL80211_FLAG_NEED_RTNL,
b23aa676 4946 },
463d0183
JB		 4947 {
4948 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4949 .doit = nl80211_wiphy_netns,
4950 .policy = nl80211_policy,
4951 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4952 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4953 NL80211_FLAG_NEED_RTNL,
463d0183 4954 },
61fa713c
HS		 4955 {
4956 .cmd = NL80211_CMD_GET_SURVEY,
4957 .policy = nl80211_policy,
4958 .dumpit = nl80211_dump_survey,
4959 },
67fbb16b
SO		 4960 {
4961 .cmd = NL80211_CMD_SET_PMKSA,
4962 .doit = nl80211_setdel_pmksa,
4963 .policy = nl80211_policy,
4964 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4965 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4966 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4967 },
4968 {
4969 .cmd = NL80211_CMD_DEL_PMKSA,
4970 .doit = nl80211_setdel_pmksa,
4971 .policy = nl80211_policy,
4972 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4973 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4974 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4975 },
4976 {
4977 .cmd = NL80211_CMD_FLUSH_PMKSA,
4978 .doit = nl80211_flush_pmksa,
4979 .policy = nl80211_policy,
4980 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4981 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4982 NL80211_FLAG_NEED_RTNL,
67fbb16b 4983 },
9588bbd5
JM		 4984 {
4985 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4986 .doit = nl80211_remain_on_channel,
4987 .policy = nl80211_policy,
4988 .flags = GENL_ADMIN_PERM,
41265714 4989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4990 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4991 },
4992 {
4993 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4994 .doit = nl80211_cancel_remain_on_channel,
4995 .policy = nl80211_policy,
4996 .flags = GENL_ADMIN_PERM,
41265714 4997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4998 NL80211_FLAG_NEED_RTNL,
9588bbd5 4999 },
13ae75b1
JM		 5000 {
5001 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5002 .doit = nl80211_set_tx_bitrate_mask,
5003 .policy = nl80211_policy,
5004 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5005 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5006 NL80211_FLAG_NEED_RTNL,
13ae75b1 5007 },
026331c4 5008 {
2e161f78
JB		 5009 .cmd = NL80211_CMD_REGISTER_FRAME,
5010 .doit = nl80211_register_mgmt,
026331c4
JM		 5011 .policy = nl80211_policy,
5012 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5013 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5014 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5015 },
5016 {
2e161f78
JB		 5017 .cmd = NL80211_CMD_FRAME,
5018 .doit = nl80211_tx_mgmt,
026331c4 5019 .policy = nl80211_policy,
f7ca38df
JB		 5020 .flags = GENL_ADMIN_PERM,
5021 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5022 NL80211_FLAG_NEED_RTNL,
5023 },
5024 {
5025 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5026 .doit = nl80211_tx_mgmt_cancel_wait,
5027 .policy = nl80211_policy,
026331c4 5028 .flags = GENL_ADMIN_PERM,
41265714 5029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5030 NL80211_FLAG_NEED_RTNL,
026331c4 5031 },
ffb9eb3d
KV		 5032 {
5033 .cmd = NL80211_CMD_SET_POWER_SAVE,
5034 .doit = nl80211_set_power_save,
5035 .policy = nl80211_policy,
5036 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5037 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5038 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5039 },
5040 {
5041 .cmd = NL80211_CMD_GET_POWER_SAVE,
5042 .doit = nl80211_get_power_save,
5043 .policy = nl80211_policy,
5044 /* can be retrieved by unprivileged users */
4c476991
JB		 5045 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5046 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5047 },
d6dc1a38
JO		 5048 {
5049 .cmd = NL80211_CMD_SET_CQM,
5050 .doit = nl80211_set_cqm,
5051 .policy = nl80211_policy,
5052 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5053 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5054 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5055 },
f444de05
JB		 5056 {
5057 .cmd = NL80211_CMD_SET_CHANNEL,
5058 .doit = nl80211_set_channel,
5059 .policy = nl80211_policy,
5060 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5061 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5062 NL80211_FLAG_NEED_RTNL,
f444de05 5063 },
e8347eba
BJ		 5064 {
5065 .cmd = NL80211_CMD_SET_WDS_PEER,
5066 .doit = nl80211_set_wds_peer,
5067 .policy = nl80211_policy,
5068 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5069 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5070 NL80211_FLAG_NEED_RTNL,
e8347eba 5071 },
29cbe68c
JB		 5072 {
5073 .cmd = NL80211_CMD_JOIN_MESH,
5074 .doit = nl80211_join_mesh,
5075 .policy = nl80211_policy,
5076 .flags = GENL_ADMIN_PERM,
5077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5078 NL80211_FLAG_NEED_RTNL,
5079 },
5080 {
5081 .cmd = NL80211_CMD_LEAVE_MESH,
5082 .doit = nl80211_leave_mesh,
5083 .policy = nl80211_policy,
5084 .flags = GENL_ADMIN_PERM,
5085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5086 NL80211_FLAG_NEED_RTNL,
5087 },
55682965 5088};
9588bbd5 5089
6039f6d2
JM		 5090static struct genl_multicast_group nl80211_mlme_mcgrp = {
5091 .name = "mlme",
5092};
55682965
JB		 5093
5094/* multicast groups */
5095static struct genl_multicast_group nl80211_config_mcgrp = {
5096 .name = "config",
5097};
2a519311
JB		 5098static struct genl_multicast_group nl80211_scan_mcgrp = {
5099 .name = "scan",
5100};
73d54c9e
LR		 5101static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5102 .name = "regulatory",
5103};
55682965
JB		 5104
5105/* notification functions */
5106
5107void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5108{
5109 struct sk_buff *msg;
5110
fd2120ca 5111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5112 if (!msg)
5113 return;
5114
5115 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5116 nlmsg_free(msg);
5117 return;
5118 }
5119
463d0183
JB		 5120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5121 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5122}
5123
362a415d
JB		 5124static int nl80211_add_scan_req(struct sk_buff *msg,
5125 struct cfg80211_registered_device *rdev)
5126{
5127 struct cfg80211_scan_request *req = rdev->scan_req;
5128 struct nlattr *nest;
5129 int i;
5130
667503dd
JB		 5131 ASSERT_RDEV_LOCK(rdev);
5132
362a415d
JB		 5133 if (WARN_ON(!req))
5134 return 0;
5135
5136 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5137 if (!nest)
5138 goto nla_put_failure;
5139 for (i = 0; i < req->n_ssids; i++)
5140 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5141 nla_nest_end(msg, nest);
5142
5143 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5144 if (!nest)
5145 goto nla_put_failure;
5146 for (i = 0; i < req->n_channels; i++)
5147 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5148 nla_nest_end(msg, nest);
5149
5150 if (req->ie)
5151 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5152
5153 return 0;
5154 nla_put_failure:
5155 return -ENOBUFS;
5156}
5157
a538e2d5
JB		 5158static int nl80211_send_scan_msg(struct sk_buff *msg,
5159 struct cfg80211_registered_device *rdev,
5160 struct net_device *netdev,
5161 u32 pid, u32 seq, int flags,
5162 u32 cmd)
2a519311
JB		 5163{
5164 void *hdr;
5165
5166 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5167 if (!hdr)
5168 return -1;
5169
b5850a7a 5170 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5172
362a415d
JB		 5173 /* ignore errors and send incomplete event anyway */
5174 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5175
5176 return genlmsg_end(msg, hdr);
5177
5178 nla_put_failure:
5179 genlmsg_cancel(msg, hdr);
5180 return -EMSGSIZE;
5181}
5182
a538e2d5
JB		 5183void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5184 struct net_device *netdev)
5185{
5186 struct sk_buff *msg;
5187
5188 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5189 if (!msg)
5190 return;
5191
5192 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5193 NL80211_CMD_TRIGGER_SCAN) < 0) {
5194 nlmsg_free(msg);
5195 return;
5196 }
5197
463d0183
JB		 5198 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5199 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5200}
5201
2a519311
JB		 5202void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5203 struct net_device *netdev)
5204{
5205 struct sk_buff *msg;
5206
fd2120ca 5207 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5208 if (!msg)
5209 return;
5210
a538e2d5
JB		 5211 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5212 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5213 nlmsg_free(msg);
5214 return;
5215 }
5216
463d0183
JB		 5217 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5218 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5219}
5220
5221void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5222 struct net_device *netdev)
5223{
5224 struct sk_buff *msg;
5225
fd2120ca 5226 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5227 if (!msg)
5228 return;
5229
a538e2d5
JB		 5230 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5231 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5232 nlmsg_free(msg);
5233 return;
5234 }
5235
463d0183
JB		 5236 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5237 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5238}
5239
73d54c9e
LR		 5240/*
5241 * This can happen on global regulatory changes or device specific settings
5242 * based on custom world regulatory domains.
5243 */
5244void nl80211_send_reg_change_event(struct regulatory_request *request)
5245{
5246 struct sk_buff *msg;
5247 void *hdr;
5248
fd2120ca 5249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5250 if (!msg)
5251 return;
5252
5253 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5254 if (!hdr) {
5255 nlmsg_free(msg);
5256 return;
5257 }
5258
5259 /* Userspace can always count this one always being set */
5260 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5261
5262 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5263 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5264 NL80211_REGDOM_TYPE_WORLD);
5265 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5266 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5267 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5268 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5269 request->intersect)
5270 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5271 NL80211_REGDOM_TYPE_INTERSECTION);
5272 else {
5273 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5274 NL80211_REGDOM_TYPE_COUNTRY);
5275 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5276 }
5277
5278 if (wiphy_idx_valid(request->wiphy_idx))
5279 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5280
5281 if (genlmsg_end(msg, hdr) < 0) {
5282 nlmsg_free(msg);
5283 return;
5284 }
5285
bc43b28c 5286 rcu_read_lock();
463d0183 5287 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5288 GFP_ATOMIC);
5289 rcu_read_unlock();
73d54c9e
LR		 5290
5291 return;
5292
5293nla_put_failure:
5294 genlmsg_cancel(msg, hdr);
5295 nlmsg_free(msg);
5296}
5297
6039f6d2
JM		 5298static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5299 struct net_device *netdev,
5300 const u8 *buf, size_t len,
e6d6e342 5301 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5302{
5303 struct sk_buff *msg;
5304 void *hdr;
5305
e6d6e342 5306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5307 if (!msg)
5308 return;
5309
5310 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5311 if (!hdr) {
5312 nlmsg_free(msg);
5313 return;
5314 }
5315
5316 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5317 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5318 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5319
5320 if (genlmsg_end(msg, hdr) < 0) {
5321 nlmsg_free(msg);
5322 return;
5323 }
5324
463d0183
JB		 5325 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5326 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5327 return;
5328
5329 nla_put_failure:
5330 genlmsg_cancel(msg, hdr);
5331 nlmsg_free(msg);
5332}
5333
5334void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5335 struct net_device *netdev, const u8 *buf,
5336 size_t len, gfp_t gfp)
6039f6d2
JM		 5337{
5338 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5339 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5340}
5341
5342void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5343 struct net_device *netdev, const u8 *buf,
e6d6e342 5344 size_t len, gfp_t gfp)
6039f6d2 5345{
e6d6e342
JB		 5346 nl80211_send_mlme_event(rdev, netdev, buf, len,
5347 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5348}
5349
53b46b84 5350void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5351 struct net_device *netdev, const u8 *buf,
5352 size_t len, gfp_t gfp)
6039f6d2
JM		 5353{
5354 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5355 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5356}
5357
53b46b84
JM		 5358void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5359 struct net_device *netdev, const u8 *buf,
e6d6e342 5360 size_t len, gfp_t gfp)
6039f6d2
JM		 5361{
5362 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5363 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5364}
5365
1b06bb40
LR		 5366static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5367 struct net_device *netdev, int cmd,
e6d6e342 5368 const u8 *addr, gfp_t gfp)
1965c853
JM		 5369{
5370 struct sk_buff *msg;
5371 void *hdr;
5372
e6d6e342 5373 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5374 if (!msg)
5375 return;
5376
5377 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5378 if (!hdr) {
5379 nlmsg_free(msg);
5380 return;
5381 }
5382
5383 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5385 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5386 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5387
5388 if (genlmsg_end(msg, hdr) < 0) {
5389 nlmsg_free(msg);
5390 return;
5391 }
5392
463d0183
JB		 5393 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5394 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5395 return;
5396
5397 nla_put_failure:
5398 genlmsg_cancel(msg, hdr);
5399 nlmsg_free(msg);
5400}
5401
5402void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5403 struct net_device *netdev, const u8 *addr,
5404 gfp_t gfp)
1965c853
JM		 5405{
5406 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5407 addr, gfp);
1965c853
JM		 5408}
5409
5410void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5411 struct net_device *netdev, const u8 *addr,
5412 gfp_t gfp)
1965c853 5413{
e6d6e342
JB		 5414 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5415 addr, gfp);
1965c853
JM		 5416}
5417
b23aa676
SO		 5418void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5419 struct net_device *netdev, const u8 *bssid,
5420 const u8 *req_ie, size_t req_ie_len,
5421 const u8 *resp_ie, size_t resp_ie_len,
5422 u16 status, gfp_t gfp)
5423{
5424 struct sk_buff *msg;
5425 void *hdr;
5426
5427 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5428 if (!msg)
5429 return;
5430
5431 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5432 if (!hdr) {
5433 nlmsg_free(msg);
5434 return;
5435 }
5436
5437 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5438 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5439 if (bssid)
5440 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5441 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5442 if (req_ie)
5443 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5444 if (resp_ie)
5445 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5446
5447 if (genlmsg_end(msg, hdr) < 0) {
5448 nlmsg_free(msg);
5449 return;
5450 }
5451
463d0183
JB		 5452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5453 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5454 return;
5455
5456 nla_put_failure:
5457 genlmsg_cancel(msg, hdr);
5458 nlmsg_free(msg);
5459
5460}
5461
5462void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5463 struct net_device *netdev, const u8 *bssid,
5464 const u8 *req_ie, size_t req_ie_len,
5465 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5466{
5467 struct sk_buff *msg;
5468 void *hdr;
5469
5470 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5471 if (!msg)
5472 return;
5473
5474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5475 if (!hdr) {
5476 nlmsg_free(msg);
5477 return;
5478 }
5479
5480 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5481 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5482 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5483 if (req_ie)
5484 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5485 if (resp_ie)
5486 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5487
5488 if (genlmsg_end(msg, hdr) < 0) {
5489 nlmsg_free(msg);
5490 return;
5491 }
5492
463d0183
JB		 5493 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5494 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5495 return;
5496
5497 nla_put_failure:
5498 genlmsg_cancel(msg, hdr);
5499 nlmsg_free(msg);
5500
5501}
5502
5503void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5504 struct net_device *netdev, u16 reason,
667503dd 5505 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5506{
5507 struct sk_buff *msg;
5508 void *hdr;
5509
667503dd 5510 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5511 if (!msg)
5512 return;
5513
5514 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5515 if (!hdr) {
5516 nlmsg_free(msg);
5517 return;
5518 }
5519
5520 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5521 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5522 if (from_ap && reason)
5523 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5524 if (from_ap)
5525 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5526 if (ie)
5527 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5528
5529 if (genlmsg_end(msg, hdr) < 0) {
5530 nlmsg_free(msg);
5531 return;
5532 }
5533
463d0183
JB		 5534 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5535 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5536 return;
5537
5538 nla_put_failure:
5539 genlmsg_cancel(msg, hdr);
5540 nlmsg_free(msg);
5541
5542}
5543
04a773ad
JB		 5544void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5545 struct net_device *netdev, const u8 *bssid,
5546 gfp_t gfp)
5547{
5548 struct sk_buff *msg;
5549 void *hdr;
5550
fd2120ca 5551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5552 if (!msg)
5553 return;
5554
5555 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5556 if (!hdr) {
5557 nlmsg_free(msg);
5558 return;
5559 }
5560
5561 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5562 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5563 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5564
5565 if (genlmsg_end(msg, hdr) < 0) {
5566 nlmsg_free(msg);
5567 return;
5568 }
5569
463d0183
JB		 5570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5571 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5572 return;
5573
5574 nla_put_failure:
5575 genlmsg_cancel(msg, hdr);
5576 nlmsg_free(msg);
5577}
5578
a3b8b056
JM		 5579void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5580 struct net_device *netdev, const u8 *addr,
5581 enum nl80211_key_type key_type, int key_id,
e6d6e342 5582 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5583{
5584 struct sk_buff *msg;
5585 void *hdr;
5586
e6d6e342 5587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5588 if (!msg)
5589 return;
5590
5591 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5592 if (!hdr) {
5593 nlmsg_free(msg);
5594 return;
5595 }
5596
5597 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5598 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5599 if (addr)
5600 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5601 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5602 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5603 if (tsc)
5604 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5605
5606 if (genlmsg_end(msg, hdr) < 0) {
5607 nlmsg_free(msg);
5608 return;
5609 }
5610
463d0183
JB		 5611 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5612 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5613 return;
5614
5615 nla_put_failure:
5616 genlmsg_cancel(msg, hdr);
5617 nlmsg_free(msg);
5618}
5619
6bad8766
LR		 5620void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5621 struct ieee80211_channel *channel_before,
5622 struct ieee80211_channel *channel_after)
5623{
5624 struct sk_buff *msg;
5625 void *hdr;
5626 struct nlattr *nl_freq;
5627
fd2120ca 5628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5629 if (!msg)
5630 return;
5631
5632 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5633 if (!hdr) {
5634 nlmsg_free(msg);
5635 return;
5636 }
5637
5638 /*
5639 * Since we are applying the beacon hint to a wiphy we know its
5640 * wiphy_idx is valid
5641 */
5642 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5643
5644 /* Before */
5645 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5646 if (!nl_freq)
5647 goto nla_put_failure;
5648 if (nl80211_msg_put_channel(msg, channel_before))
5649 goto nla_put_failure;
5650 nla_nest_end(msg, nl_freq);
5651
5652 /* After */
5653 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5654 if (!nl_freq)
5655 goto nla_put_failure;
5656 if (nl80211_msg_put_channel(msg, channel_after))
5657 goto nla_put_failure;
5658 nla_nest_end(msg, nl_freq);
5659
5660 if (genlmsg_end(msg, hdr) < 0) {
5661 nlmsg_free(msg);
5662 return;
5663 }
5664
463d0183
JB		 5665 rcu_read_lock();
5666 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5667 GFP_ATOMIC);
5668 rcu_read_unlock();
6bad8766
LR		 5669
5670 return;
5671
5672nla_put_failure:
5673 genlmsg_cancel(msg, hdr);
5674 nlmsg_free(msg);
5675}
5676
9588bbd5
JM		 5677static void nl80211_send_remain_on_chan_event(
5678 int cmd, struct cfg80211_registered_device *rdev,
5679 struct net_device *netdev, u64 cookie,
5680 struct ieee80211_channel *chan,
5681 enum nl80211_channel_type channel_type,
5682 unsigned int duration, gfp_t gfp)
5683{
5684 struct sk_buff *msg;
5685 void *hdr;
5686
5687 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5688 if (!msg)
5689 return;
5690
5691 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5692 if (!hdr) {
5693 nlmsg_free(msg);
5694 return;
5695 }
5696
5697 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5698 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5699 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5700 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5701 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5702
5703 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5704 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5705
5706 if (genlmsg_end(msg, hdr) < 0) {
5707 nlmsg_free(msg);
5708 return;
5709 }
5710
5711 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5712 nl80211_mlme_mcgrp.id, gfp);
5713 return;
5714
5715 nla_put_failure:
5716 genlmsg_cancel(msg, hdr);
5717 nlmsg_free(msg);
5718}
5719
5720void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5721 struct net_device *netdev, u64 cookie,
5722 struct ieee80211_channel *chan,
5723 enum nl80211_channel_type channel_type,
5724 unsigned int duration, gfp_t gfp)
5725{
5726 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5727 rdev, netdev, cookie, chan,
5728 channel_type, duration, gfp);
5729}
5730
5731void nl80211_send_remain_on_channel_cancel(
5732 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5733 u64 cookie, struct ieee80211_channel *chan,
5734 enum nl80211_channel_type channel_type, gfp_t gfp)
5735{
5736 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5737 rdev, netdev, cookie, chan,
5738 channel_type, 0, gfp);
5739}
5740
98b62183
JB		 5741void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5742 struct net_device *dev, const u8 *mac_addr,
5743 struct station_info *sinfo, gfp_t gfp)
5744{
5745 struct sk_buff *msg;
5746
5747 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5748 if (!msg)
5749 return;
5750
5751 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5752 nlmsg_free(msg);
5753 return;
5754 }
5755
5756 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5757 nl80211_mlme_mcgrp.id, gfp);
5758}
5759
2e161f78
JB		 5760int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5761 struct net_device *netdev, u32 nlpid,
5762 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5763{
5764 struct sk_buff *msg;
5765 void *hdr;
5766 int err;
5767
5768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5769 if (!msg)
5770 return -ENOMEM;
5771
2e161f78 5772 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5773 if (!hdr) {
5774 nlmsg_free(msg);
5775 return -ENOMEM;
5776 }
5777
5778 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5779 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5781 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5782
5783 err = genlmsg_end(msg, hdr);
5784 if (err < 0) {
5785 nlmsg_free(msg);
5786 return err;
5787 }
5788
5789 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5790 if (err < 0)
5791 return err;
5792 return 0;
5793
5794 nla_put_failure:
5795 genlmsg_cancel(msg, hdr);
5796 nlmsg_free(msg);
5797 return -ENOBUFS;
5798}
5799
2e161f78
JB		 5800void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5801 struct net_device *netdev, u64 cookie,
5802 const u8 *buf, size_t len, bool ack,
5803 gfp_t gfp)
026331c4
JM		 5804{
5805 struct sk_buff *msg;
5806 void *hdr;
5807
5808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5809 if (!msg)
5810 return;
5811
2e161f78 5812 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5813 if (!hdr) {
5814 nlmsg_free(msg);
5815 return;
5816 }
5817
5818 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5819 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5820 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5821 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5822 if (ack)
5823 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5824
5825 if (genlmsg_end(msg, hdr) < 0) {
5826 nlmsg_free(msg);
5827 return;
5828 }
5829
5830 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5831 return;
5832
5833 nla_put_failure:
5834 genlmsg_cancel(msg, hdr);
5835 nlmsg_free(msg);
5836}
5837
d6dc1a38
JO		 5838void
5839nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5840 struct net_device *netdev,
5841 enum nl80211_cqm_rssi_threshold_event rssi_event,
5842 gfp_t gfp)
5843{
5844 struct sk_buff *msg;
5845 struct nlattr *pinfoattr;
5846 void *hdr;
5847
5848 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5849 if (!msg)
5850 return;
5851
5852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5853 if (!hdr) {
5854 nlmsg_free(msg);
5855 return;
5856 }
5857
5858 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5859 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5860
5861 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5862 if (!pinfoattr)
5863 goto nla_put_failure;
5864
5865 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5866 rssi_event);
5867
5868 nla_nest_end(msg, pinfoattr);
5869
5870 if (genlmsg_end(msg, hdr) < 0) {
5871 nlmsg_free(msg);
5872 return;
5873 }
5874
5875 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5876 nl80211_mlme_mcgrp.id, gfp);
5877 return;
5878
5879 nla_put_failure:
5880 genlmsg_cancel(msg, hdr);
5881 nlmsg_free(msg);
5882}
5883
c063dbf5
JB		 5884void
5885nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5886 struct net_device *netdev, const u8 *peer,
5887 u32 num_packets, gfp_t gfp)
5888{
5889 struct sk_buff *msg;
5890 struct nlattr *pinfoattr;
5891 void *hdr;
5892
5893 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5894 if (!msg)
5895 return;
5896
5897 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5898 if (!hdr) {
5899 nlmsg_free(msg);
5900 return;
5901 }
5902
5903 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5904 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5905 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5906
5907 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5908 if (!pinfoattr)
5909 goto nla_put_failure;
5910
5911 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5912
5913 nla_nest_end(msg, pinfoattr);
5914
5915 if (genlmsg_end(msg, hdr) < 0) {
5916 nlmsg_free(msg);
5917 return;
5918 }
5919
5920 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5921 nl80211_mlme_mcgrp.id, gfp);
5922 return;
5923
5924 nla_put_failure:
5925 genlmsg_cancel(msg, hdr);
5926 nlmsg_free(msg);
5927}
5928
026331c4
JM		 5929static int nl80211_netlink_notify(struct notifier_block * nb,
5930 unsigned long state,
5931 void *_notify)
5932{
5933 struct netlink_notify *notify = _notify;
5934 struct cfg80211_registered_device *rdev;
5935 struct wireless_dev *wdev;
5936
5937 if (state != NETLINK_URELEASE)
5938 return NOTIFY_DONE;
5939
5940 rcu_read_lock();
5941
5942 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5943 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5944 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5945
5946 rcu_read_unlock();
5947
5948 return NOTIFY_DONE;
5949}
5950
5951static struct notifier_block nl80211_netlink_notifier = {
5952 .notifier_call = nl80211_netlink_notify,
5953};
5954
55682965
JB		 5955/* initialisation/exit functions */
5956
5957int nl80211_init(void)
5958{
0d63cbb5 5959 int err;
55682965 5960
0d63cbb5
MM		 5961 err = genl_register_family_with_ops(&nl80211_fam,
5962 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5963 if (err)
5964 return err;
5965
55682965
JB		 5966 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5967 if (err)
5968 goto err_out;
5969
2a519311
JB		 5970 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5971 if (err)
5972 goto err_out;
5973
73d54c9e
LR		 5974 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5975 if (err)
5976 goto err_out;
5977
6039f6d2
JM		 5978 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5979 if (err)
5980 goto err_out;
5981
aff89a9b
JB		 5982#ifdef CONFIG_NL80211_TESTMODE
5983 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5984 if (err)
5985 goto err_out;
5986#endif
5987
026331c4
JM		 5988 err = netlink_register_notifier(&nl80211_netlink_notifier);
5989 if (err)
5990 goto err_out;
5991
55682965
JB		 5992 return 0;
5993 err_out:
5994 genl_unregister_family(&nl80211_fam);
5995 return err;
5996}
5997
5998void nl80211_exit(void)
5999{
026331c4 6000 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6001 genl_unregister_family(&nl80211_fam);
6002}
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