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ath9k: fix assumptions for idle calls on suspend/resume
[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 },
50b12f59 124 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 125
93da9cc1 126 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
127
36aedc90
JM		 128 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
129 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 130
131 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
132 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
133 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 134 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
135 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 136
137 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_SSID_LEN },
139 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
140 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 141 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 142 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 143 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 144 [NL80211_ATTR_STA_FLAGS2] = {
145 .len = sizeof(struct nl80211_sta_flag_update),
146 },
3f77316c 147 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 148 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
149 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 150 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
151 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
152 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 153 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 154 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 155 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
156 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 157 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
158 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 159 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 160 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
161 .len = IEEE80211_MAX_DATA_LEN },
162 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 163 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 164 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 165 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 166 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 167 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
168 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 169 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 170 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
171 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 172 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 173 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
55682965
JB		 174};
175
e31b8213 176/* policy for the key attributes */
b54452b0 177static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 178 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 179 [NL80211_KEY_IDX] = { .type = NLA_U8 },
180 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
181 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
182 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
183 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 184 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
b9454e83
JB		 185};
186
a043897a
HS		 187/* ifidx get helper */
188static int nl80211_get_ifidx(struct netlink_callback *cb)
189{
190 int res;
191
192 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
193 nl80211_fam.attrbuf, nl80211_fam.maxattr,
194 nl80211_policy);
195 if (res)
196 return res;
197
198 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
199 return -EINVAL;
200
201 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
202 if (!res)
203 return -EINVAL;
204 return res;
205}
206
67748893
JB		 207static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
208 struct netlink_callback *cb,
209 struct cfg80211_registered_device **rdev,
210 struct net_device **dev)
211{
212 int ifidx = cb->args[0];
213 int err;
214
215 if (!ifidx)
216 ifidx = nl80211_get_ifidx(cb);
217 if (ifidx < 0)
218 return ifidx;
219
220 cb->args[0] = ifidx;
221
222 rtnl_lock();
223
224 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
225 if (!*dev) {
226 err = -ENODEV;
227 goto out_rtnl;
228 }
229
230 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 231 if (IS_ERR(*rdev)) {
232 err = PTR_ERR(*rdev);
67748893
JB		 233 goto out_rtnl;
234 }
235
236 return 0;
237 out_rtnl:
238 rtnl_unlock();
239 return err;
240}
241
242static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
243{
244 cfg80211_unlock_rdev(rdev);
245 rtnl_unlock();
246}
247
f4a11bb0
JB		 248/* IE validation */
249static bool is_valid_ie_attr(const struct nlattr *attr)
250{
251 const u8 *pos;
252 int len;
253
254 if (!attr)
255 return true;
256
257 pos = nla_data(attr);
258 len = nla_len(attr);
259
260 while (len) {
261 u8 elemlen;
262
263 if (len < 2)
264 return false;
265 len -= 2;
266
267 elemlen = pos[1];
268 if (elemlen > len)
269 return false;
270
271 len -= elemlen;
272 pos += 2 + elemlen;
273 }
274
275 return true;
276}
277
55682965
JB		 278/* message building helper */
279static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
280 int flags, u8 cmd)
281{
282 /* since there is no private header just add the generic one */
283 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
284}
285
5dab3b8a
LR		 286static int nl80211_msg_put_channel(struct sk_buff *msg,
287 struct ieee80211_channel *chan)
288{
289 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
290 chan->center_freq);
291
292 if (chan->flags & IEEE80211_CHAN_DISABLED)
293 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
294 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
295 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
296 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
297 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
298 if (chan->flags & IEEE80211_CHAN_RADAR)
299 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
300
301 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
302 DBM_TO_MBM(chan->max_power));
303
304 return 0;
305
306 nla_put_failure:
307 return -ENOBUFS;
308}
309
55682965
JB		 310/* netlink command implementations */
311
b9454e83
JB		 312struct key_parse {
313 struct key_params p;
314 int idx;
e31b8213 315 int type;
b9454e83
JB		 316 bool def, defmgmt;
317};
318
319static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
320{
321 struct nlattr *tb[NL80211_KEY_MAX + 1];
322 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
323 nl80211_key_policy);
324 if (err)
325 return err;
326
327 k->def = !!tb[NL80211_KEY_DEFAULT];
328 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
329
330 if (tb[NL80211_KEY_IDX])
331 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
332
333 if (tb[NL80211_KEY_DATA]) {
334 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
335 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
336 }
337
338 if (tb[NL80211_KEY_SEQ]) {
339 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
340 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
341 }
342
343 if (tb[NL80211_KEY_CIPHER])
344 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
345
e31b8213
JB		 346 if (tb[NL80211_KEY_TYPE]) {
347 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
348 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
349 return -EINVAL;
350 }
351
b9454e83
JB		 352 return 0;
353}
354
355static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
356{
357 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
358 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
359 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
360 }
361
362 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
363 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
364 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
365 }
366
367 if (info->attrs[NL80211_ATTR_KEY_IDX])
368 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
369
370 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
371 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
372
373 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
374 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
375
e31b8213
JB		 376 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
377 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
378 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
379 return -EINVAL;
380 }
381
b9454e83
JB		 382 return 0;
383}
384
385static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
386{
387 int err;
388
389 memset(k, 0, sizeof(*k));
390 k->idx = -1;
e31b8213 391 k->type = -1;
b9454e83
JB		 392
393 if (info->attrs[NL80211_ATTR_KEY])
394 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
395 else
396 err = nl80211_parse_key_old(info, k);
397
398 if (err)
399 return err;
400
401 if (k->def && k->defmgmt)
402 return -EINVAL;
403
404 if (k->idx != -1) {
405 if (k->defmgmt) {
406 if (k->idx < 4 || k->idx > 5)
407 return -EINVAL;
408 } else if (k->def) {
409 if (k->idx < 0 || k->idx > 3)
410 return -EINVAL;
411 } else {
412 if (k->idx < 0 || k->idx > 5)
413 return -EINVAL;
414 }
415 }
416
417 return 0;
418}
419
fffd0934
JB		 420static struct cfg80211_cached_keys *
421nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
422 struct nlattr *keys)
423{
424 struct key_parse parse;
425 struct nlattr *key;
426 struct cfg80211_cached_keys *result;
427 int rem, err, def = 0;
428
429 result = kzalloc(sizeof(*result), GFP_KERNEL);
430 if (!result)
431 return ERR_PTR(-ENOMEM);
432
433 result->def = -1;
434 result->defmgmt = -1;
435
436 nla_for_each_nested(key, keys, rem) {
437 memset(&parse, 0, sizeof(parse));
438 parse.idx = -1;
439
440 err = nl80211_parse_key_new(key, &parse);
441 if (err)
442 goto error;
443 err = -EINVAL;
444 if (!parse.p.key)
445 goto error;
446 if (parse.idx < 0 || parse.idx > 4)
447 goto error;
448 if (parse.def) {
449 if (def)
450 goto error;
451 def = 1;
452 result->def = parse.idx;
453 } else if (parse.defmgmt)
454 goto error;
455 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 456 parse.idx, false, NULL);
fffd0934
JB		 457 if (err)
458 goto error;
459 result->params[parse.idx].cipher = parse.p.cipher;
460 result->params[parse.idx].key_len = parse.p.key_len;
461 result->params[parse.idx].key = result->data[parse.idx];
462 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
463 }
464
465 return result;
466 error:
467 kfree(result);
468 return ERR_PTR(err);
469}
470
471static int nl80211_key_allowed(struct wireless_dev *wdev)
472{
473 ASSERT_WDEV_LOCK(wdev);
474
fffd0934
JB		 475 switch (wdev->iftype) {
476 case NL80211_IFTYPE_AP:
477 case NL80211_IFTYPE_AP_VLAN:
074ac8df 478 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 479 break;
480 case NL80211_IFTYPE_ADHOC:
481 if (!wdev->current_bss)
482 return -ENOLINK;
483 break;
484 case NL80211_IFTYPE_STATION:
074ac8df 485 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 486 if (wdev->sme_state != CFG80211_SME_CONNECTED)
487 return -ENOLINK;
488 break;
489 default:
490 return -EINVAL;
491 }
492
493 return 0;
494}
495
55682965
JB		 496static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
497 struct cfg80211_registered_device *dev)
498{
499 void *hdr;
ee688b00
JB		 500 struct nlattr *nl_bands, *nl_band;
501 struct nlattr *nl_freqs, *nl_freq;
502 struct nlattr *nl_rates, *nl_rate;
f59ac048 503 struct nlattr *nl_modes;
8fdc621d 504 struct nlattr *nl_cmds;
ee688b00
JB		 505 enum ieee80211_band band;
506 struct ieee80211_channel *chan;
507 struct ieee80211_rate *rate;
508 int i;
f59ac048 509 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 510 const struct ieee80211_txrx_stypes *mgmt_stypes =
511 dev->wiphy.mgmt_stypes;
55682965
JB		 512
513 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
514 if (!hdr)
515 return -1;
516
b5850a7a 517 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 518 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 519
f5ea9120
JB		 520 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
521 cfg80211_rdev_list_generation);
522
b9a5f8ca
JM		 523 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
524 dev->wiphy.retry_short);
525 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
526 dev->wiphy.retry_long);
527 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
528 dev->wiphy.frag_threshold);
529 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
530 dev->wiphy.rts_threshold);
81077e82
LT		 531 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
532 dev->wiphy.coverage_class);
2a519311
JB		 533 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
534 dev->wiphy.max_scan_ssids);
18a83659
JB		 535 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
536 dev->wiphy.max_scan_ie_len);
ee688b00 537
e31b8213
JB		 538 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
539 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
540
25e47c18
JB		 541 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
542 sizeof(u32) * dev->wiphy.n_cipher_suites,
543 dev->wiphy.cipher_suites);
544
67fbb16b
SO		 545 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
546 dev->wiphy.max_num_pmkids);
547
c0692b8f
JB		 548 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
549 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
550
afe0cbf8
BR		 551 if (dev->ops->get_antenna) {
552 u32 tx_ant = 0, rx_ant = 0;
553 int res;
554 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
555 if (!res) {
556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
557 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
558 }
559 }
560
f59ac048
LR		 561 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
562 if (!nl_modes)
563 goto nla_put_failure;
564
565 i = 0;
566 while (ifmodes) {
567 if (ifmodes & 1)
568 NLA_PUT_FLAG(msg, i);
569 ifmodes >>= 1;
570 i++;
571 }
572
573 nla_nest_end(msg, nl_modes);
574
ee688b00
JB		 575 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
576 if (!nl_bands)
577 goto nla_put_failure;
578
579 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
580 if (!dev->wiphy.bands[band])
581 continue;
582
583 nl_band = nla_nest_start(msg, band);
584 if (!nl_band)
585 goto nla_put_failure;
586
d51626df
JB		 587 /* add HT info */
588 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
589 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
590 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
591 &dev->wiphy.bands[band]->ht_cap.mcs);
592 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
593 dev->wiphy.bands[band]->ht_cap.cap);
594 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
595 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
596 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
597 dev->wiphy.bands[band]->ht_cap.ampdu_density);
598 }
599
ee688b00
JB		 600 /* add frequencies */
601 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
602 if (!nl_freqs)
603 goto nla_put_failure;
604
605 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
606 nl_freq = nla_nest_start(msg, i);
607 if (!nl_freq)
608 goto nla_put_failure;
609
610 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 611
612 if (nl80211_msg_put_channel(msg, chan))
613 goto nla_put_failure;
e2f367f2 614
ee688b00
JB		 615 nla_nest_end(msg, nl_freq);
616 }
617
618 nla_nest_end(msg, nl_freqs);
619
620 /* add bitrates */
621 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
622 if (!nl_rates)
623 goto nla_put_failure;
624
625 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
626 nl_rate = nla_nest_start(msg, i);
627 if (!nl_rate)
628 goto nla_put_failure;
629
630 rate = &dev->wiphy.bands[band]->bitrates[i];
631 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
632 rate->bitrate);
633 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
634 NLA_PUT_FLAG(msg,
635 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
636
637 nla_nest_end(msg, nl_rate);
638 }
639
640 nla_nest_end(msg, nl_rates);
641
642 nla_nest_end(msg, nl_band);
643 }
644 nla_nest_end(msg, nl_bands);
645
8fdc621d
JB		 646 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
647 if (!nl_cmds)
648 goto nla_put_failure;
649
650 i = 0;
651#define CMD(op, n) \
652 do { \
653 if (dev->ops->op) { \
654 i++; \
655 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
656 } \
657 } while (0)
658
659 CMD(add_virtual_intf, NEW_INTERFACE);
660 CMD(change_virtual_intf, SET_INTERFACE);
661 CMD(add_key, NEW_KEY);
662 CMD(add_beacon, NEW_BEACON);
663 CMD(add_station, NEW_STATION);
664 CMD(add_mpath, NEW_MPATH);
29cbe68c 665 CMD(update_mesh_params, SET_MESH_PARAMS);
8fdc621d 666 CMD(change_bss, SET_BSS);
636a5d36
JM		 667 CMD(auth, AUTHENTICATE);
668 CMD(assoc, ASSOCIATE);
669 CMD(deauth, DEAUTHENTICATE);
670 CMD(disassoc, DISASSOCIATE);
04a773ad 671 CMD(join_ibss, JOIN_IBSS);
29cbe68c 672 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 673 CMD(set_pmksa, SET_PMKSA);
674 CMD(del_pmksa, DEL_PMKSA);
675 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 676 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 677 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 678 CMD(mgmt_tx, FRAME);
f7ca38df 679 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 680 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 681 i++;
682 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
683 }
f444de05 684 CMD(set_channel, SET_CHANNEL);
e8347eba 685 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 686
687#undef CMD
b23aa676 688
6829c878 689 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 690 i++;
691 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
692 }
693
6829c878 694 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 695 i++;
696 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
697 }
698
8fdc621d
JB		 699 nla_nest_end(msg, nl_cmds);
700
f7ca38df
JB		 701 /* for now at least assume all drivers have it */
702 if (dev->ops->mgmt_tx)
703 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
704
2e161f78
JB		 705 if (mgmt_stypes) {
706 u16 stypes;
707 struct nlattr *nl_ftypes, *nl_ifs;
708 enum nl80211_iftype ift;
709
710 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
711 if (!nl_ifs)
712 goto nla_put_failure;
713
714 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
715 nl_ftypes = nla_nest_start(msg, ift);
716 if (!nl_ftypes)
717 goto nla_put_failure;
718 i = 0;
719 stypes = mgmt_stypes[ift].tx;
720 while (stypes) {
721 if (stypes & 1)
722 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
723 (i << 4) | IEEE80211_FTYPE_MGMT);
724 stypes >>= 1;
725 i++;
726 }
727 nla_nest_end(msg, nl_ftypes);
728 }
729
74b70a4e
JB		 730 nla_nest_end(msg, nl_ifs);
731
2e161f78
JB		 732 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
733 if (!nl_ifs)
734 goto nla_put_failure;
735
736 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
737 nl_ftypes = nla_nest_start(msg, ift);
738 if (!nl_ftypes)
739 goto nla_put_failure;
740 i = 0;
741 stypes = mgmt_stypes[ift].rx;
742 while (stypes) {
743 if (stypes & 1)
744 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
745 (i << 4) | IEEE80211_FTYPE_MGMT);
746 stypes >>= 1;
747 i++;
748 }
749 nla_nest_end(msg, nl_ftypes);
750 }
751 nla_nest_end(msg, nl_ifs);
752 }
753
55682965
JB		 754 return genlmsg_end(msg, hdr);
755
756 nla_put_failure:
bc3ed28c
TG		 757 genlmsg_cancel(msg, hdr);
758 return -EMSGSIZE;
55682965
JB		 759}
760
761static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
762{
763 int idx = 0;
764 int start = cb->args[0];
765 struct cfg80211_registered_device *dev;
766
a1794390 767 mutex_lock(&cfg80211_mutex);
79c97e97 768 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 769 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
770 continue;
b4637271 771 if (++idx <= start)
55682965
JB		 772 continue;
773 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
774 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 775 dev) < 0) {
776 idx--;
55682965 777 break;
b4637271 778 }
55682965 779 }
a1794390 780 mutex_unlock(&cfg80211_mutex);
55682965
JB		 781
782 cb->args[0] = idx;
783
784 return skb->len;
785}
786
787static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
788{
789 struct sk_buff *msg;
4c476991 790 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 791
fd2120ca 792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 793 if (!msg)
4c476991 794 return -ENOMEM;
55682965 795
4c476991
JB		 796 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
797 nlmsg_free(msg);
798 return -ENOBUFS;
799 }
55682965 800
134e6375 801 return genlmsg_reply(msg, info);
55682965
JB		 802}
803
31888487
JM		 804static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
805 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
806 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
807 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
808 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
809 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
810};
811
812static int parse_txq_params(struct nlattr *tb[],
813 struct ieee80211_txq_params *txq_params)
814{
815 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
816 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
817 !tb[NL80211_TXQ_ATTR_AIFS])
818 return -EINVAL;
819
820 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
821 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
822 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
823 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
824 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
825
826 return 0;
827}
828
f444de05
JB		 829static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
830{
831 /*
832 * You can only set the channel explicitly for AP, mesh
833 * and WDS type interfaces; all others have their channel
834 * managed via their respective "establish a connection"
835 * command (connect, join, ...)
836 *
837 * Monitors are special as they are normally slaved to
838 * whatever else is going on, so they behave as though
839 * you tried setting the wiphy channel itself.
840 */
841 return !wdev ||
842 wdev->iftype == NL80211_IFTYPE_AP ||
843 wdev->iftype == NL80211_IFTYPE_WDS ||
844 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 845 wdev->iftype == NL80211_IFTYPE_MONITOR ||
846 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 847}
848
849static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
850 struct wireless_dev *wdev,
851 struct genl_info *info)
852{
853 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
854 u32 freq;
855 int result;
856
857 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
858 return -EINVAL;
859
860 if (!nl80211_can_set_dev_channel(wdev))
861 return -EOPNOTSUPP;
862
863 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
864 channel_type = nla_get_u32(info->attrs[
865 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
866 if (channel_type != NL80211_CHAN_NO_HT &&
867 channel_type != NL80211_CHAN_HT20 &&
868 channel_type != NL80211_CHAN_HT40PLUS &&
869 channel_type != NL80211_CHAN_HT40MINUS)
870 return -EINVAL;
871 }
872
873 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
874
875 mutex_lock(&rdev->devlist_mtx);
876 if (wdev) {
877 wdev_lock(wdev);
878 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
879 wdev_unlock(wdev);
880 } else {
881 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
882 }
883 mutex_unlock(&rdev->devlist_mtx);
884
885 return result;
886}
887
888static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
889{
4c476991
JB		 890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
891 struct net_device *netdev = info->user_ptr[1];
f444de05 892
4c476991 893 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 894}
895
e8347eba
BJ		 896static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
897{
43b19952
JB		 898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
899 struct net_device *dev = info->user_ptr[1];
900 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 901 const u8 *bssid;
e8347eba
BJ		 902
903 if (!info->attrs[NL80211_ATTR_MAC])
904 return -EINVAL;
905
43b19952
JB		 906 if (netif_running(dev))
907 return -EBUSY;
e8347eba 908
43b19952
JB		 909 if (!rdev->ops->set_wds_peer)
910 return -EOPNOTSUPP;
e8347eba 911
43b19952
JB		 912 if (wdev->iftype != NL80211_IFTYPE_WDS)
913 return -EOPNOTSUPP;
e8347eba
BJ		 914
915 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 916 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 917}
918
919
55682965
JB		 920static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
921{
922 struct cfg80211_registered_device *rdev;
f444de05
JB		 923 struct net_device *netdev = NULL;
924 struct wireless_dev *wdev;
a1e567c8 925 int result = 0, rem_txq_params = 0;
31888487 926 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 927 u32 changed;
928 u8 retry_short = 0, retry_long = 0;
929 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 930 u8 coverage_class = 0;
55682965 931
f444de05
JB		 932 /*
933 * Try to find the wiphy and netdev. Normally this
934 * function shouldn't need the netdev, but this is
935 * done for backward compatibility -- previously
936 * setting the channel was done per wiphy, but now
937 * it is per netdev. Previous userland like hostapd
938 * also passed a netdev to set_wiphy, so that it is
939 * possible to let that go to the right netdev!
940 */
4bbf4d56
JB		 941 mutex_lock(&cfg80211_mutex);
942
f444de05
JB		 943 if (info->attrs[NL80211_ATTR_IFINDEX]) {
944 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
945
946 netdev = dev_get_by_index(genl_info_net(info), ifindex);
947 if (netdev && netdev->ieee80211_ptr) {
948 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
949 mutex_lock(&rdev->mtx);
950 } else
951 netdev = NULL;
4bbf4d56
JB		 952 }
953
f444de05
JB		 954 if (!netdev) {
955 rdev = __cfg80211_rdev_from_info(info);
956 if (IS_ERR(rdev)) {
957 mutex_unlock(&cfg80211_mutex);
4c476991 958 return PTR_ERR(rdev);
f444de05
JB		 959 }
960 wdev = NULL;
961 netdev = NULL;
962 result = 0;
963
964 mutex_lock(&rdev->mtx);
965 } else if (netif_running(netdev) &&
966 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
967 wdev = netdev->ieee80211_ptr;
968 else
969 wdev = NULL;
970
971 /*
972 * end workaround code, by now the rdev is available
973 * and locked, and wdev may or may not be NULL.
974 */
4bbf4d56
JB		 975
976 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 977 result = cfg80211_dev_rename(
978 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 979
980 mutex_unlock(&cfg80211_mutex);
981
982 if (result)
983 goto bad_res;
31888487
JM		 984
985 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
986 struct ieee80211_txq_params txq_params;
987 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
988
989 if (!rdev->ops->set_txq_params) {
990 result = -EOPNOTSUPP;
991 goto bad_res;
992 }
993
994 nla_for_each_nested(nl_txq_params,
995 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
996 rem_txq_params) {
997 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
998 nla_data(nl_txq_params),
999 nla_len(nl_txq_params),
1000 txq_params_policy);
1001 result = parse_txq_params(tb, &txq_params);
1002 if (result)
1003 goto bad_res;
1004
1005 result = rdev->ops->set_txq_params(&rdev->wiphy,
1006 &txq_params);
1007 if (result)
1008 goto bad_res;
1009 }
1010 }
55682965 1011
72bdcf34 1012 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1013 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1014 if (result)
1015 goto bad_res;
1016 }
1017
98d2ff8b
JO		 1018 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1019 enum nl80211_tx_power_setting type;
1020 int idx, mbm = 0;
1021
1022 if (!rdev->ops->set_tx_power) {
60ea385f 1023 result = -EOPNOTSUPP;
98d2ff8b
JO		 1024 goto bad_res;
1025 }
1026
1027 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1028 type = nla_get_u32(info->attrs[idx]);
1029
1030 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1031 (type != NL80211_TX_POWER_AUTOMATIC)) {
1032 result = -EINVAL;
1033 goto bad_res;
1034 }
1035
1036 if (type != NL80211_TX_POWER_AUTOMATIC) {
1037 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1038 mbm = nla_get_u32(info->attrs[idx]);
1039 }
1040
1041 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1042 if (result)
1043 goto bad_res;
1044 }
1045
afe0cbf8
BR		 1046 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1047 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1048 u32 tx_ant, rx_ant;
1049 if (!rdev->ops->set_antenna) {
1050 result = -EOPNOTSUPP;
1051 goto bad_res;
1052 }
1053
1054 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1055 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1056
1057 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1058 if (result)
1059 goto bad_res;
1060 }
1061
b9a5f8ca
JM		 1062 changed = 0;
1063
1064 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1065 retry_short = nla_get_u8(
1066 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1067 if (retry_short == 0) {
1068 result = -EINVAL;
1069 goto bad_res;
1070 }
1071 changed |= WIPHY_PARAM_RETRY_SHORT;
1072 }
1073
1074 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1075 retry_long = nla_get_u8(
1076 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1077 if (retry_long == 0) {
1078 result = -EINVAL;
1079 goto bad_res;
1080 }
1081 changed |= WIPHY_PARAM_RETRY_LONG;
1082 }
1083
1084 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1085 frag_threshold = nla_get_u32(
1086 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1087 if (frag_threshold < 256) {
1088 result = -EINVAL;
1089 goto bad_res;
1090 }
1091 if (frag_threshold != (u32) -1) {
1092 /*
1093 * Fragments (apart from the last one) are required to
1094 * have even length. Make the fragmentation code
1095 * simpler by stripping LSB should someone try to use
1096 * odd threshold value.
1097 */
1098 frag_threshold &= ~0x1;
1099 }
1100 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1101 }
1102
1103 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1104 rts_threshold = nla_get_u32(
1105 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1106 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1107 }
1108
81077e82
LT		 1109 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1110 coverage_class = nla_get_u8(
1111 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1112 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1113 }
1114
b9a5f8ca
JM		 1115 if (changed) {
1116 u8 old_retry_short, old_retry_long;
1117 u32 old_frag_threshold, old_rts_threshold;
81077e82 1118 u8 old_coverage_class;
b9a5f8ca
JM		 1119
1120 if (!rdev->ops->set_wiphy_params) {
1121 result = -EOPNOTSUPP;
1122 goto bad_res;
1123 }
1124
1125 old_retry_short = rdev->wiphy.retry_short;
1126 old_retry_long = rdev->wiphy.retry_long;
1127 old_frag_threshold = rdev->wiphy.frag_threshold;
1128 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1129 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1130
1131 if (changed & WIPHY_PARAM_RETRY_SHORT)
1132 rdev->wiphy.retry_short = retry_short;
1133 if (changed & WIPHY_PARAM_RETRY_LONG)
1134 rdev->wiphy.retry_long = retry_long;
1135 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1136 rdev->wiphy.frag_threshold = frag_threshold;
1137 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1138 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1139 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1140 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1141
1142 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1143 if (result) {
1144 rdev->wiphy.retry_short = old_retry_short;
1145 rdev->wiphy.retry_long = old_retry_long;
1146 rdev->wiphy.frag_threshold = old_frag_threshold;
1147 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1148 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1149 }
1150 }
72bdcf34 1151
306d6112 1152 bad_res:
4bbf4d56 1153 mutex_unlock(&rdev->mtx);
f444de05
JB		 1154 if (netdev)
1155 dev_put(netdev);
55682965
JB		 1156 return result;
1157}
1158
1159
1160static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1161 struct cfg80211_registered_device *rdev,
55682965
JB		 1162 struct net_device *dev)
1163{
1164 void *hdr;
1165
1166 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1167 if (!hdr)
1168 return -1;
1169
1170 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1171 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1172 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1173 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1174
1175 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1176 rdev->devlist_generation ^
1177 (cfg80211_rdev_list_generation << 2));
1178
55682965
JB		 1179 return genlmsg_end(msg, hdr);
1180
1181 nla_put_failure:
bc3ed28c
TG		 1182 genlmsg_cancel(msg, hdr);
1183 return -EMSGSIZE;
55682965
JB		 1184}
1185
1186static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1187{
1188 int wp_idx = 0;
1189 int if_idx = 0;
1190 int wp_start = cb->args[0];
1191 int if_start = cb->args[1];
f5ea9120 1192 struct cfg80211_registered_device *rdev;
55682965
JB		 1193 struct wireless_dev *wdev;
1194
a1794390 1195 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1196 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1197 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1198 continue;
bba95fef
JB		 1199 if (wp_idx < wp_start) {
1200 wp_idx++;
55682965 1201 continue;
bba95fef 1202 }
55682965
JB		 1203 if_idx = 0;
1204
f5ea9120
JB		 1205 mutex_lock(&rdev->devlist_mtx);
1206 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1207 if (if_idx < if_start) {
1208 if_idx++;
55682965 1209 continue;
bba95fef 1210 }
55682965
JB		 1211 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1212 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1213 rdev, wdev->netdev) < 0) {
1214 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1215 goto out;
1216 }
1217 if_idx++;
55682965 1218 }
f5ea9120 1219 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1220
1221 wp_idx++;
55682965 1222 }
bba95fef 1223 out:
a1794390 1224 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1225
1226 cb->args[0] = wp_idx;
1227 cb->args[1] = if_idx;
1228
1229 return skb->len;
1230}
1231
1232static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1233{
1234 struct sk_buff *msg;
4c476991
JB		 1235 struct cfg80211_registered_device *dev = info->user_ptr[0];
1236 struct net_device *netdev = info->user_ptr[1];
55682965 1237
fd2120ca 1238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1239 if (!msg)
4c476991 1240 return -ENOMEM;
55682965 1241
d726405a 1242 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1243 dev, netdev) < 0) {
1244 nlmsg_free(msg);
1245 return -ENOBUFS;
1246 }
55682965 1247
134e6375 1248 return genlmsg_reply(msg, info);
55682965
JB		 1249}
1250
66f7ac50
MW		 1251static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1252 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1253 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1254 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1255 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1256 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1257};
1258
1259static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1260{
1261 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1262 int flag;
1263
1264 *mntrflags = 0;
1265
1266 if (!nla)
1267 return -EINVAL;
1268
1269 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1270 nla, mntr_flags_policy))
1271 return -EINVAL;
1272
1273 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1274 if (flags[flag])
1275 *mntrflags |= (1<<flag);
1276
1277 return 0;
1278}
1279
9bc383de 1280static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1281 struct net_device *netdev, u8 use_4addr,
1282 enum nl80211_iftype iftype)
9bc383de 1283{
ad4bb6f8 1284 if (!use_4addr) {
f350a0a8 1285 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1286 return -EBUSY;
9bc383de 1287 return 0;
ad4bb6f8 1288 }
9bc383de
JB		 1289
1290 switch (iftype) {
1291 case NL80211_IFTYPE_AP_VLAN:
1292 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1293 return 0;
1294 break;
1295 case NL80211_IFTYPE_STATION:
1296 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1297 return 0;
1298 break;
1299 default:
1300 break;
1301 }
1302
1303 return -EOPNOTSUPP;
1304}
1305
55682965
JB		 1306static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1307{
4c476991 1308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1309 struct vif_params params;
e36d56b6 1310 int err;
04a773ad 1311 enum nl80211_iftype otype, ntype;
4c476991 1312 struct net_device *dev = info->user_ptr[1];
92ffe055 1313 u32 _flags, *flags = NULL;
ac7f9cfa 1314 bool change = false;
55682965 1315
2ec600d6
LCC		 1316 memset(&params, 0, sizeof(params));
1317
04a773ad 1318 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1319
723b038d 1320 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1321 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1322 if (otype != ntype)
ac7f9cfa 1323 change = true;
4c476991
JB		 1324 if (ntype > NL80211_IFTYPE_MAX)
1325 return -EINVAL;
723b038d
JB		 1326 }
1327
92ffe055 1328 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1329 struct wireless_dev *wdev = dev->ieee80211_ptr;
1330
4c476991
JB		 1331 if (ntype != NL80211_IFTYPE_MESH_POINT)
1332 return -EINVAL;
29cbe68c
JB		 1333 if (netif_running(dev))
1334 return -EBUSY;
1335
1336 wdev_lock(wdev);
1337 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1338 IEEE80211_MAX_MESH_ID_LEN);
1339 wdev->mesh_id_up_len =
1340 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1341 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1342 wdev->mesh_id_up_len);
1343 wdev_unlock(wdev);
2ec600d6
LCC		 1344 }
1345
8b787643
FF		 1346 if (info->attrs[NL80211_ATTR_4ADDR]) {
1347 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1348 change = true;
ad4bb6f8 1349 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1350 if (err)
4c476991 1351 return err;
8b787643
FF		 1352 } else {
1353 params.use_4addr = -1;
1354 }
1355
92ffe055 1356 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1357 if (ntype != NL80211_IFTYPE_MONITOR)
1358 return -EINVAL;
92ffe055
JB		 1359 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1360 &_flags);
ac7f9cfa 1361 if (err)
4c476991 1362 return err;
ac7f9cfa
JB		 1363
1364 flags = &_flags;
1365 change = true;
92ffe055 1366 }
3b85875a 1367
ac7f9cfa 1368 if (change)
3d54d255 1369 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1370 else
1371 err = 0;
60719ffd 1372
9bc383de
JB		 1373 if (!err && params.use_4addr != -1)
1374 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1375
55682965
JB		 1376 return err;
1377}
1378
1379static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1380{
4c476991 1381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1382 struct vif_params params;
f9e10ce4 1383 struct net_device *dev;
55682965
JB		 1384 int err;
1385 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1386 u32 flags;
55682965 1387
2ec600d6
LCC		 1388 memset(&params, 0, sizeof(params));
1389
55682965
JB		 1390 if (!info->attrs[NL80211_ATTR_IFNAME])
1391 return -EINVAL;
1392
1393 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1394 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1395 if (type > NL80211_IFTYPE_MAX)
1396 return -EINVAL;
1397 }
1398
79c97e97 1399 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1400 !(rdev->wiphy.interface_modes & (1 << type)))
1401 return -EOPNOTSUPP;
55682965 1402
9bc383de 1403 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1404 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1405 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1406 if (err)
4c476991 1407 return err;
9bc383de 1408 }
8b787643 1409
66f7ac50
MW		 1410 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1411 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1412 &flags);
f9e10ce4 1413 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1414 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1415 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1416 if (IS_ERR(dev))
1417 return PTR_ERR(dev);
2ec600d6 1418
29cbe68c
JB		 1419 if (type == NL80211_IFTYPE_MESH_POINT &&
1420 info->attrs[NL80211_ATTR_MESH_ID]) {
1421 struct wireless_dev *wdev = dev->ieee80211_ptr;
1422
1423 wdev_lock(wdev);
1424 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1425 IEEE80211_MAX_MESH_ID_LEN);
1426 wdev->mesh_id_up_len =
1427 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1428 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1429 wdev->mesh_id_up_len);
1430 wdev_unlock(wdev);
1431 }
1432
f9e10ce4 1433 return 0;
55682965
JB		 1434}
1435
1436static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1437{
4c476991
JB		 1438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1439 struct net_device *dev = info->user_ptr[1];
55682965 1440
4c476991
JB		 1441 if (!rdev->ops->del_virtual_intf)
1442 return -EOPNOTSUPP;
55682965 1443
4c476991 1444 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1445}
1446
41ade00f
JB		 1447struct get_key_cookie {
1448 struct sk_buff *msg;
1449 int error;
b9454e83 1450 int idx;
41ade00f
JB		 1451};
1452
1453static void get_key_callback(void *c, struct key_params *params)
1454{
b9454e83 1455 struct nlattr *key;
41ade00f
JB		 1456 struct get_key_cookie *cookie = c;
1457
1458 if (params->key)
1459 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1460 params->key_len, params->key);
1461
1462 if (params->seq)
1463 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1464 params->seq_len, params->seq);
1465
1466 if (params->cipher)
1467 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1468 params->cipher);
1469
b9454e83
JB		 1470 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1471 if (!key)
1472 goto nla_put_failure;
1473
1474 if (params->key)
1475 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1476 params->key_len, params->key);
1477
1478 if (params->seq)
1479 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1480 params->seq_len, params->seq);
1481
1482 if (params->cipher)
1483 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1484 params->cipher);
1485
1486 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1487
1488 nla_nest_end(cookie->msg, key);
1489
41ade00f
JB		 1490 return;
1491 nla_put_failure:
1492 cookie->error = 1;
1493}
1494
1495static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1496{
4c476991 1497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1498 int err;
4c476991 1499 struct net_device *dev = info->user_ptr[1];
41ade00f 1500 u8 key_idx = 0;
e31b8213
JB		 1501 const u8 *mac_addr = NULL;
1502 bool pairwise;
41ade00f
JB		 1503 struct get_key_cookie cookie = {
1504 .error = 0,
1505 };
1506 void *hdr;
1507 struct sk_buff *msg;
1508
1509 if (info->attrs[NL80211_ATTR_KEY_IDX])
1510 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1511
3cfcf6ac 1512 if (key_idx > 5)
41ade00f
JB		 1513 return -EINVAL;
1514
1515 if (info->attrs[NL80211_ATTR_MAC])
1516 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1517
e31b8213
JB		 1518 pairwise = !!mac_addr;
1519 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1520 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1521 if (kt >= NUM_NL80211_KEYTYPES)
1522 return -EINVAL;
1523 if (kt != NL80211_KEYTYPE_GROUP &&
1524 kt != NL80211_KEYTYPE_PAIRWISE)
1525 return -EINVAL;
1526 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1527 }
1528
4c476991
JB		 1529 if (!rdev->ops->get_key)
1530 return -EOPNOTSUPP;
41ade00f 1531
fd2120ca 1532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1533 if (!msg)
1534 return -ENOMEM;
41ade00f
JB		 1535
1536 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1537 NL80211_CMD_NEW_KEY);
4c476991
JB		 1538 if (IS_ERR(hdr))
1539 return PTR_ERR(hdr);
41ade00f
JB		 1540
1541 cookie.msg = msg;
b9454e83 1542 cookie.idx = key_idx;
41ade00f
JB		 1543
1544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1545 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1546 if (mac_addr)
1547 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1548
e31b8213
JB		 1549 if (pairwise && mac_addr &&
1550 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1551 return -ENOENT;
1552
1553 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1554 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1555
1556 if (err)
6c95e2a2 1557 goto free_msg;
41ade00f
JB		 1558
1559 if (cookie.error)
1560 goto nla_put_failure;
1561
1562 genlmsg_end(msg, hdr);
4c476991 1563 return genlmsg_reply(msg, info);
41ade00f
JB		 1564
1565 nla_put_failure:
1566 err = -ENOBUFS;
6c95e2a2 1567 free_msg:
41ade00f 1568 nlmsg_free(msg);
41ade00f
JB		 1569 return err;
1570}
1571
1572static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1573{
4c476991 1574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1575 struct key_parse key;
41ade00f 1576 int err;
4c476991 1577 struct net_device *dev = info->user_ptr[1];
3cfcf6ac
JM		 1578 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1579 u8 key_index);
41ade00f 1580
b9454e83
JB		 1581 err = nl80211_parse_key(info, &key);
1582 if (err)
1583 return err;
41ade00f 1584
b9454e83 1585 if (key.idx < 0)
41ade00f
JB		 1586 return -EINVAL;
1587
b9454e83
JB		 1588 /* only support setting default key */
1589 if (!key.def && !key.defmgmt)
41ade00f
JB		 1590 return -EINVAL;
1591
b9454e83 1592 if (key.def)
79c97e97 1593 func = rdev->ops->set_default_key;
3cfcf6ac 1594 else
79c97e97 1595 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac 1596
4c476991
JB		 1597 if (!func)
1598 return -EOPNOTSUPP;
41ade00f 1599
fffd0934
JB		 1600 wdev_lock(dev->ieee80211_ptr);
1601 err = nl80211_key_allowed(dev->ieee80211_ptr);
1602 if (!err)
1603 err = func(&rdev->wiphy, dev, key.idx);
1604
3d23e349 1605#ifdef CONFIG_CFG80211_WEXT
08645126 1606 if (!err) {
79c97e97 1607 if (func == rdev->ops->set_default_key)
b9454e83 1608 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1609 else
b9454e83 1610 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1611 }
1612#endif
fffd0934 1613 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1614
41ade00f
JB		 1615 return err;
1616}
1617
1618static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1619{
4c476991 1620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1621 int err;
4c476991 1622 struct net_device *dev = info->user_ptr[1];
b9454e83 1623 struct key_parse key;
e31b8213 1624 const u8 *mac_addr = NULL;
41ade00f 1625
b9454e83
JB		 1626 err = nl80211_parse_key(info, &key);
1627 if (err)
1628 return err;
41ade00f 1629
b9454e83 1630 if (!key.p.key)
41ade00f
JB		 1631 return -EINVAL;
1632
41ade00f
JB		 1633 if (info->attrs[NL80211_ATTR_MAC])
1634 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1635
e31b8213
JB		 1636 if (key.type == -1) {
1637 if (mac_addr)
1638 key.type = NL80211_KEYTYPE_PAIRWISE;
1639 else
1640 key.type = NL80211_KEYTYPE_GROUP;
1641 }
1642
1643 /* for now */
1644 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1645 key.type != NL80211_KEYTYPE_GROUP)
1646 return -EINVAL;
1647
4c476991
JB		 1648 if (!rdev->ops->add_key)
1649 return -EOPNOTSUPP;
25e47c18 1650
e31b8213
JB		 1651 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1652 key.type == NL80211_KEYTYPE_PAIRWISE,
1653 mac_addr))
4c476991 1654 return -EINVAL;
41ade00f 1655
fffd0934
JB		 1656 wdev_lock(dev->ieee80211_ptr);
1657 err = nl80211_key_allowed(dev->ieee80211_ptr);
1658 if (!err)
1659 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1660 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1661 mac_addr, &key.p);
1662 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1663
41ade00f
JB		 1664 return err;
1665}
1666
1667static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1668{
4c476991 1669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1670 int err;
4c476991 1671 struct net_device *dev = info->user_ptr[1];
41ade00f 1672 u8 *mac_addr = NULL;
b9454e83 1673 struct key_parse key;
41ade00f 1674
b9454e83
JB		 1675 err = nl80211_parse_key(info, &key);
1676 if (err)
1677 return err;
41ade00f
JB		 1678
1679 if (info->attrs[NL80211_ATTR_MAC])
1680 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1681
e31b8213
JB		 1682 if (key.type == -1) {
1683 if (mac_addr)
1684 key.type = NL80211_KEYTYPE_PAIRWISE;
1685 else
1686 key.type = NL80211_KEYTYPE_GROUP;
1687 }
1688
1689 /* for now */
1690 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1691 key.type != NL80211_KEYTYPE_GROUP)
1692 return -EINVAL;
1693
4c476991
JB		 1694 if (!rdev->ops->del_key)
1695 return -EOPNOTSUPP;
41ade00f 1696
fffd0934
JB		 1697 wdev_lock(dev->ieee80211_ptr);
1698 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1699
1700 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1701 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1702 err = -ENOENT;
1703
fffd0934 1704 if (!err)
e31b8213
JB		 1705 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1706 key.type == NL80211_KEYTYPE_PAIRWISE,
1707 mac_addr);
41ade00f 1708
3d23e349 1709#ifdef CONFIG_CFG80211_WEXT
08645126 1710 if (!err) {
b9454e83 1711 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1712 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1713 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1714 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1715 }
1716#endif
fffd0934 1717 wdev_unlock(dev->ieee80211_ptr);
08645126 1718
41ade00f
JB		 1719 return err;
1720}
1721
ed1b6cc7
JB		 1722static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1723{
1724 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1725 struct beacon_parameters *info);
4c476991
JB		 1726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1727 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1728 struct beacon_parameters params;
1729 int haveinfo = 0;
1730
f4a11bb0
JB		 1731 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1732 return -EINVAL;
1733
074ac8df 1734 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1735 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1736 return -EOPNOTSUPP;
eec60b03 1737
ed1b6cc7
JB		 1738 switch (info->genlhdr->cmd) {
1739 case NL80211_CMD_NEW_BEACON:
1740 /* these are required for NEW_BEACON */
1741 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1742 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1743 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1744 return -EINVAL;
ed1b6cc7 1745
79c97e97 1746 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1747 break;
1748 case NL80211_CMD_SET_BEACON:
79c97e97 1749 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1750 break;
1751 default:
1752 WARN_ON(1);
4c476991 1753 return -EOPNOTSUPP;
ed1b6cc7
JB		 1754 }
1755
4c476991
JB		 1756 if (!call)
1757 return -EOPNOTSUPP;
ed1b6cc7
JB		 1758
1759 memset(&params, 0, sizeof(params));
1760
1761 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1762 params.interval =
1763 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1764 haveinfo = 1;
1765 }
1766
1767 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1768 params.dtim_period =
1769 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1770 haveinfo = 1;
1771 }
1772
1773 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1774 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1775 params.head_len =
1776 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1777 haveinfo = 1;
1778 }
1779
1780 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1781 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1782 params.tail_len =
1783 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1784 haveinfo = 1;
1785 }
1786
4c476991
JB		 1787 if (!haveinfo)
1788 return -EINVAL;
3b85875a 1789
4c476991 1790 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1791}
1792
1793static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1794{
4c476991
JB		 1795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1796 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1797
4c476991
JB		 1798 if (!rdev->ops->del_beacon)
1799 return -EOPNOTSUPP;
ed1b6cc7 1800
074ac8df 1801 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1802 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1803 return -EOPNOTSUPP;
3b85875a 1804
4c476991 1805 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1806}
1807
5727ef1b
JB		 1808static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1809 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1810 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1811 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1812 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1813};
1814
eccb8e8f
JB		 1815static int parse_station_flags(struct genl_info *info,
1816 struct station_parameters *params)
5727ef1b
JB		 1817{
1818 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1819 struct nlattr *nla;
5727ef1b
JB		 1820 int flag;
1821
eccb8e8f
JB		 1822 /*
1823 * Try parsing the new attribute first so userspace
1824 * can specify both for older kernels.
1825 */
1826 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1827 if (nla) {
1828 struct nl80211_sta_flag_update *sta_flags;
1829
1830 sta_flags = nla_data(nla);
1831 params->sta_flags_mask = sta_flags->mask;
1832 params->sta_flags_set = sta_flags->set;
1833 if ((params->sta_flags_mask |
1834 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1835 return -EINVAL;
1836 return 0;
1837 }
1838
1839 /* if present, parse the old attribute */
5727ef1b 1840
eccb8e8f 1841 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1842 if (!nla)
1843 return 0;
1844
1845 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1846 nla, sta_flags_policy))
1847 return -EINVAL;
1848
eccb8e8f
JB		 1849 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1850 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1851
1852 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1853 if (flags[flag])
eccb8e8f 1854 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1855
1856 return 0;
1857}
1858
fd5b74dc
JB		 1859static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1860 int flags, struct net_device *dev,
98b62183 1861 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1862{
1863 void *hdr;
420e7fab
HR		 1864 struct nlattr *sinfoattr, *txrate;
1865 u16 bitrate;
fd5b74dc
JB		 1866
1867 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1868 if (!hdr)
1869 return -1;
1870
1871 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1872 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1873
f5ea9120
JB		 1874 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1875
2ec600d6
LCC		 1876 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1877 if (!sinfoattr)
fd5b74dc 1878 goto nla_put_failure;
2ec600d6
LCC		 1879 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1880 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1881 sinfo->inactive_time);
1882 if (sinfo->filled & STATION_INFO_RX_BYTES)
1883 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1884 sinfo->rx_bytes);
1885 if (sinfo->filled & STATION_INFO_TX_BYTES)
1886 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1887 sinfo->tx_bytes);
1888 if (sinfo->filled & STATION_INFO_LLID)
1889 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1890 sinfo->llid);
1891 if (sinfo->filled & STATION_INFO_PLID)
1892 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1893 sinfo->plid);
1894 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1895 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1896 sinfo->plink_state);
420e7fab
HR		 1897 if (sinfo->filled & STATION_INFO_SIGNAL)
1898 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1899 sinfo->signal);
541a45a1
BR		 1900 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
1901 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
1902 sinfo->signal_avg);
420e7fab
HR		 1903 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1904 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1905 if (!txrate)
1906 goto nla_put_failure;
1907
254416aa
JL		 1908 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1909 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1910 if (bitrate > 0)
1911 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1912
420e7fab
HR		 1913 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1914 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1915 sinfo->txrate.mcs);
1916 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1917 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1918 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1919 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1920
1921 nla_nest_end(msg, txrate);
1922 }
98c8a60a
JM		 1923 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1924 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1925 sinfo->rx_packets);
1926 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1927 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1928 sinfo->tx_packets);
b206b4ef
BR		 1929 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1930 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1931 sinfo->tx_retries);
1932 if (sinfo->filled & STATION_INFO_TX_FAILED)
1933 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1934 sinfo->tx_failed);
2ec600d6 1935 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1936
1937 return genlmsg_end(msg, hdr);
1938
1939 nla_put_failure:
bc3ed28c
TG		 1940 genlmsg_cancel(msg, hdr);
1941 return -EMSGSIZE;
fd5b74dc
JB		 1942}
1943
2ec600d6 1944static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1945 struct netlink_callback *cb)
2ec600d6 1946{
2ec600d6
LCC		 1947 struct station_info sinfo;
1948 struct cfg80211_registered_device *dev;
bba95fef 1949 struct net_device *netdev;
2ec600d6 1950 u8 mac_addr[ETH_ALEN];
bba95fef 1951 int sta_idx = cb->args[1];
2ec600d6 1952 int err;
2ec600d6 1953
67748893
JB		 1954 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1955 if (err)
1956 return err;
bba95fef
JB		 1957
1958 if (!dev->ops->dump_station) {
eec60b03 1959 err = -EOPNOTSUPP;
bba95fef
JB		 1960 goto out_err;
1961 }
1962
bba95fef
JB		 1963 while (1) {
1964 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1965 mac_addr, &sinfo);
1966 if (err == -ENOENT)
1967 break;
1968 if (err)
3b85875a 1969 goto out_err;
bba95fef
JB		 1970
1971 if (nl80211_send_station(skb,
1972 NETLINK_CB(cb->skb).pid,
1973 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1974 netdev, mac_addr,
1975 &sinfo) < 0)
1976 goto out;
1977
1978 sta_idx++;
1979 }
1980
1981
1982 out:
1983 cb->args[1] = sta_idx;
1984 err = skb->len;
bba95fef 1985 out_err:
67748893 1986 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 1987
1988 return err;
2ec600d6 1989}
fd5b74dc 1990
5727ef1b
JB		 1991static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1992{
4c476991
JB		 1993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1994 struct net_device *dev = info->user_ptr[1];
2ec600d6 1995 struct station_info sinfo;
fd5b74dc
JB		 1996 struct sk_buff *msg;
1997 u8 *mac_addr = NULL;
4c476991 1998 int err;
fd5b74dc 1999
2ec600d6 2000 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2001
2002 if (!info->attrs[NL80211_ATTR_MAC])
2003 return -EINVAL;
2004
2005 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2006
4c476991
JB		 2007 if (!rdev->ops->get_station)
2008 return -EOPNOTSUPP;
3b85875a 2009
4c476991 2010 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2011 if (err)
4c476991 2012 return err;
2ec600d6 2013
fd2120ca 2014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2015 if (!msg)
4c476991 2016 return -ENOMEM;
fd5b74dc
JB		 2017
2018 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2019 dev, mac_addr, &sinfo) < 0) {
2020 nlmsg_free(msg);
2021 return -ENOBUFS;
2022 }
3b85875a 2023
4c476991 2024 return genlmsg_reply(msg, info);
5727ef1b
JB		 2025}
2026
2027/*
c258d2de 2028 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2029 */
463d0183 2030static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2031 struct cfg80211_registered_device *rdev,
2032 struct net_device **vlan)
2033{
463d0183 2034 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2035 *vlan = NULL;
2036
2037 if (vlanattr) {
463d0183
JB		 2038 *vlan = dev_get_by_index(genl_info_net(info),
2039 nla_get_u32(vlanattr));
5727ef1b
JB		 2040 if (!*vlan)
2041 return -ENODEV;
2042 if (!(*vlan)->ieee80211_ptr)
2043 return -EINVAL;
2044 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2045 return -EINVAL;
c258d2de
FF		 2046 if (!netif_running(*vlan))
2047 return -ENETDOWN;
5727ef1b
JB		 2048 }
2049 return 0;
2050}
2051
2052static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2053{
4c476991 2054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2055 int err;
4c476991 2056 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2057 struct station_parameters params;
2058 u8 *mac_addr = NULL;
2059
2060 memset(&params, 0, sizeof(params));
2061
2062 params.listen_interval = -1;
2063
2064 if (info->attrs[NL80211_ATTR_STA_AID])
2065 return -EINVAL;
2066
2067 if (!info->attrs[NL80211_ATTR_MAC])
2068 return -EINVAL;
2069
2070 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2071
2072 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2073 params.supported_rates =
2074 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2075 params.supported_rates_len =
2076 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2077 }
2078
2079 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2080 params.listen_interval =
2081 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2082
36aedc90
JM		 2083 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2084 params.ht_capa =
2085 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2086
eccb8e8f 2087 if (parse_station_flags(info, &params))
5727ef1b
JB		 2088 return -EINVAL;
2089
2ec600d6
LCC		 2090 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2091 params.plink_action =
2092 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2093
463d0183 2094 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2095 if (err)
034d655e 2096 goto out;
a97f4424
JB		 2097
2098 /* validate settings */
2099 err = 0;
2100
2101 switch (dev->ieee80211_ptr->iftype) {
2102 case NL80211_IFTYPE_AP:
2103 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2104 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2105 /* disallow mesh-specific things */
2106 if (params.plink_action)
2107 err = -EINVAL;
2108 break;
074ac8df 2109 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2110 case NL80211_IFTYPE_STATION:
2111 /* disallow everything but AUTHORIZED flag */
2112 if (params.plink_action)
2113 err = -EINVAL;
2114 if (params.vlan)
2115 err = -EINVAL;
2116 if (params.supported_rates)
2117 err = -EINVAL;
2118 if (params.ht_capa)
2119 err = -EINVAL;
2120 if (params.listen_interval >= 0)
2121 err = -EINVAL;
2122 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2123 err = -EINVAL;
2124 break;
2125 case NL80211_IFTYPE_MESH_POINT:
2126 /* disallow things mesh doesn't support */
2127 if (params.vlan)
2128 err = -EINVAL;
2129 if (params.ht_capa)
2130 err = -EINVAL;
2131 if (params.listen_interval >= 0)
2132 err = -EINVAL;
2133 if (params.supported_rates)
2134 err = -EINVAL;
2135 if (params.sta_flags_mask)
2136 err = -EINVAL;
2137 break;
2138 default:
2139 err = -EINVAL;
034d655e
JB		 2140 }
2141
5727ef1b
JB		 2142 if (err)
2143 goto out;
2144
79c97e97 2145 if (!rdev->ops->change_station) {
5727ef1b
JB		 2146 err = -EOPNOTSUPP;
2147 goto out;
2148 }
2149
79c97e97 2150 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2151
2152 out:
2153 if (params.vlan)
2154 dev_put(params.vlan);
3b85875a 2155
5727ef1b
JB		 2156 return err;
2157}
2158
2159static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2160{
4c476991 2161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2162 int err;
4c476991 2163 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2164 struct station_parameters params;
2165 u8 *mac_addr = NULL;
2166
2167 memset(&params, 0, sizeof(params));
2168
2169 if (!info->attrs[NL80211_ATTR_MAC])
2170 return -EINVAL;
2171
5727ef1b
JB		 2172 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2173 return -EINVAL;
2174
2175 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2176 return -EINVAL;
2177
0e956c13
TLSC		 2178 if (!info->attrs[NL80211_ATTR_STA_AID])
2179 return -EINVAL;
2180
5727ef1b
JB		 2181 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2182 params.supported_rates =
2183 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2184 params.supported_rates_len =
2185 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2186 params.listen_interval =
2187 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2188
0e956c13
TLSC		 2189 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2190 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2191 return -EINVAL;
51b50fbe 2192
36aedc90
JM		 2193 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2194 params.ht_capa =
2195 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2196
eccb8e8f 2197 if (parse_station_flags(info, &params))
5727ef1b
JB		 2198 return -EINVAL;
2199
0e956c13 2200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2202 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2203 return -EINVAL;
0e956c13 2204
463d0183 2205 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2206 if (err)
e80cf853 2207 goto out;
a97f4424
JB		 2208
2209 /* validate settings */
2210 err = 0;
2211
79c97e97 2212 if (!rdev->ops->add_station) {
5727ef1b
JB		 2213 err = -EOPNOTSUPP;
2214 goto out;
2215 }
2216
79c97e97 2217 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2218
2219 out:
2220 if (params.vlan)
2221 dev_put(params.vlan);
5727ef1b
JB		 2222 return err;
2223}
2224
2225static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2226{
4c476991
JB		 2227 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2228 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2229 u8 *mac_addr = NULL;
2230
2231 if (info->attrs[NL80211_ATTR_MAC])
2232 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2233
e80cf853 2234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2235 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2236 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2237 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2238 return -EINVAL;
5727ef1b 2239
4c476991
JB		 2240 if (!rdev->ops->del_station)
2241 return -EOPNOTSUPP;
3b85875a 2242
4c476991 2243 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2244}
2245
2ec600d6
LCC		 2246static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2247 int flags, struct net_device *dev,
2248 u8 *dst, u8 *next_hop,
2249 struct mpath_info *pinfo)
2250{
2251 void *hdr;
2252 struct nlattr *pinfoattr;
2253
2254 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2255 if (!hdr)
2256 return -1;
2257
2258 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2259 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2260 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2261
f5ea9120
JB		 2262 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2263
2ec600d6
LCC		 2264 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2265 if (!pinfoattr)
2266 goto nla_put_failure;
2267 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2268 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2269 pinfo->frame_qlen);
d19b3bf6
RP		 2270 if (pinfo->filled & MPATH_INFO_SN)
2271 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2272 pinfo->sn);
2ec600d6
LCC		 2273 if (pinfo->filled & MPATH_INFO_METRIC)
2274 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2275 pinfo->metric);
2276 if (pinfo->filled & MPATH_INFO_EXPTIME)
2277 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2278 pinfo->exptime);
2279 if (pinfo->filled & MPATH_INFO_FLAGS)
2280 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2281 pinfo->flags);
2282 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2283 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2284 pinfo->discovery_timeout);
2285 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2286 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2287 pinfo->discovery_retries);
2288
2289 nla_nest_end(msg, pinfoattr);
2290
2291 return genlmsg_end(msg, hdr);
2292
2293 nla_put_failure:
bc3ed28c
TG		 2294 genlmsg_cancel(msg, hdr);
2295 return -EMSGSIZE;
2ec600d6
LCC		 2296}
2297
2298static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2299 struct netlink_callback *cb)
2ec600d6 2300{
2ec600d6
LCC		 2301 struct mpath_info pinfo;
2302 struct cfg80211_registered_device *dev;
bba95fef 2303 struct net_device *netdev;
2ec600d6
LCC		 2304 u8 dst[ETH_ALEN];
2305 u8 next_hop[ETH_ALEN];
bba95fef 2306 int path_idx = cb->args[1];
2ec600d6 2307 int err;
2ec600d6 2308
67748893
JB		 2309 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2310 if (err)
2311 return err;
bba95fef
JB		 2312
2313 if (!dev->ops->dump_mpath) {
eec60b03 2314 err = -EOPNOTSUPP;
bba95fef
JB		 2315 goto out_err;
2316 }
2317
eec60b03
JM		 2318 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2319 err = -EOPNOTSUPP;
0448b5fc 2320 goto out_err;
eec60b03
JM		 2321 }
2322
bba95fef
JB		 2323 while (1) {
2324 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2325 dst, next_hop, &pinfo);
2326 if (err == -ENOENT)
2ec600d6 2327 break;
bba95fef 2328 if (err)
3b85875a 2329 goto out_err;
2ec600d6 2330
bba95fef
JB		 2331 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2332 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2333 netdev, dst, next_hop,
2334 &pinfo) < 0)
2335 goto out;
2ec600d6 2336
bba95fef 2337 path_idx++;
2ec600d6 2338 }
2ec600d6 2339
2ec600d6 2340
bba95fef
JB		 2341 out:
2342 cb->args[1] = path_idx;
2343 err = skb->len;
bba95fef 2344 out_err:
67748893 2345 nl80211_finish_netdev_dump(dev);
bba95fef 2346 return err;
2ec600d6
LCC		 2347}
2348
2349static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2350{
4c476991 2351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2352 int err;
4c476991 2353 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2354 struct mpath_info pinfo;
2355 struct sk_buff *msg;
2356 u8 *dst = NULL;
2357 u8 next_hop[ETH_ALEN];
2358
2359 memset(&pinfo, 0, sizeof(pinfo));
2360
2361 if (!info->attrs[NL80211_ATTR_MAC])
2362 return -EINVAL;
2363
2364 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2365
4c476991
JB		 2366 if (!rdev->ops->get_mpath)
2367 return -EOPNOTSUPP;
2ec600d6 2368
4c476991
JB		 2369 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2370 return -EOPNOTSUPP;
eec60b03 2371
79c97e97 2372 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2373 if (err)
4c476991 2374 return err;
2ec600d6 2375
fd2120ca 2376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2377 if (!msg)
4c476991 2378 return -ENOMEM;
2ec600d6
LCC		 2379
2380 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2381 dev, dst, next_hop, &pinfo) < 0) {
2382 nlmsg_free(msg);
2383 return -ENOBUFS;
2384 }
3b85875a 2385
4c476991 2386 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2387}
2388
2389static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2390{
4c476991
JB		 2391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2392 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2393 u8 *dst = NULL;
2394 u8 *next_hop = NULL;
2395
2396 if (!info->attrs[NL80211_ATTR_MAC])
2397 return -EINVAL;
2398
2399 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2400 return -EINVAL;
2401
2402 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2403 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2404
4c476991
JB		 2405 if (!rdev->ops->change_mpath)
2406 return -EOPNOTSUPP;
35a8efe1 2407
4c476991
JB		 2408 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2409 return -EOPNOTSUPP;
2ec600d6 2410
4c476991 2411 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2412}
4c476991 2413
2ec600d6
LCC		 2414static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2415{
4c476991
JB		 2416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2417 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2418 u8 *dst = NULL;
2419 u8 *next_hop = NULL;
2420
2421 if (!info->attrs[NL80211_ATTR_MAC])
2422 return -EINVAL;
2423
2424 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2425 return -EINVAL;
2426
2427 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2428 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2429
4c476991
JB		 2430 if (!rdev->ops->add_mpath)
2431 return -EOPNOTSUPP;
35a8efe1 2432
4c476991
JB		 2433 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2434 return -EOPNOTSUPP;
2ec600d6 2435
4c476991 2436 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2437}
2438
2439static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2440{
4c476991
JB		 2441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2442 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2443 u8 *dst = NULL;
2444
2445 if (info->attrs[NL80211_ATTR_MAC])
2446 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2447
4c476991
JB		 2448 if (!rdev->ops->del_mpath)
2449 return -EOPNOTSUPP;
3b85875a 2450
4c476991 2451 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2452}
2453
9f1ba906
JM		 2454static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2455{
4c476991
JB		 2456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2457 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2458 struct bss_parameters params;
2459
2460 memset(&params, 0, sizeof(params));
2461 /* default to not changing parameters */
2462 params.use_cts_prot = -1;
2463 params.use_short_preamble = -1;
2464 params.use_short_slot_time = -1;
fd8aaaf3 2465 params.ap_isolate = -1;
50b12f59 2466 params.ht_opmode = -1;
9f1ba906
JM		 2467
2468 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2469 params.use_cts_prot =
2470 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2471 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2472 params.use_short_preamble =
2473 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2474 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2475 params.use_short_slot_time =
2476 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2477 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2478 params.basic_rates =
2479 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2480 params.basic_rates_len =
2481 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2482 }
fd8aaaf3
FF		 2483 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2484 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2485 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2486 params.ht_opmode =
2487 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2488
4c476991
JB		 2489 if (!rdev->ops->change_bss)
2490 return -EOPNOTSUPP;
9f1ba906 2491
074ac8df 2492 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2494 return -EOPNOTSUPP;
3b85875a 2495
4c476991 2496 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2497}
2498
b54452b0 2499static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2500 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2501 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2502 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2503 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2504 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2505 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2506};
2507
2508static int parse_reg_rule(struct nlattr *tb[],
2509 struct ieee80211_reg_rule *reg_rule)
2510{
2511 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2512 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2513
2514 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2515 return -EINVAL;
2516 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2517 return -EINVAL;
2518 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2519 return -EINVAL;
2520 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2521 return -EINVAL;
2522 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2523 return -EINVAL;
2524
2525 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2526
2527 freq_range->start_freq_khz =
2528 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2529 freq_range->end_freq_khz =
2530 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2531 freq_range->max_bandwidth_khz =
2532 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2533
2534 power_rule->max_eirp =
2535 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2536
2537 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2538 power_rule->max_antenna_gain =
2539 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2540
2541 return 0;
2542}
2543
2544static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2545{
2546 int r;
2547 char *data = NULL;
2548
80778f18
LR		 2549 /*
2550 * You should only get this when cfg80211 hasn't yet initialized
2551 * completely when built-in to the kernel right between the time
2552 * window between nl80211_init() and regulatory_init(), if that is
2553 * even possible.
2554 */
2555 mutex_lock(&cfg80211_mutex);
2556 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2557 mutex_unlock(&cfg80211_mutex);
2558 return -EINPROGRESS;
80778f18 2559 }
fe33eb39 2560 mutex_unlock(&cfg80211_mutex);
80778f18 2561
fe33eb39
LR		 2562 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2563 return -EINVAL;
b2e1b302
LR		 2564
2565 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2566
fe33eb39
LR		 2567 r = regulatory_hint_user(data);
2568
b2e1b302
LR		 2569 return r;
2570}
2571
93da9cc1 2572static int nl80211_get_mesh_params(struct sk_buff *skb,
29cbe68c 2573 struct genl_info *info)
93da9cc1 2574{
4c476991 2575 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2576 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2577 struct wireless_dev *wdev = dev->ieee80211_ptr;
2578 struct mesh_config cur_params;
2579 int err = 0;
93da9cc1 2580 void *hdr;
2581 struct nlattr *pinfoattr;
2582 struct sk_buff *msg;
2583
29cbe68c
JB		 2584 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2585 return -EOPNOTSUPP;
2586
4c476991
JB		 2587 if (!rdev->ops->get_mesh_params)
2588 return -EOPNOTSUPP;
f3f92586 2589
29cbe68c
JB		 2590 wdev_lock(wdev);
2591 /* If not connected, get default parameters */
2592 if (!wdev->mesh_id_len)
2593 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2594 else
2595 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev,
2596 &cur_params);
2597 wdev_unlock(wdev);
2598
93da9cc1 2599 if (err)
4c476991 2600 return err;
93da9cc1 2601
2602 /* Draw up a netlink message to send back */
fd2120ca 2603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2604 if (!msg)
2605 return -ENOMEM;
93da9cc1 2606 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2607 NL80211_CMD_GET_MESH_PARAMS);
2608 if (!hdr)
2609 goto nla_put_failure;
2610 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2611 if (!pinfoattr)
2612 goto nla_put_failure;
2613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2614 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2615 cur_params.dot11MeshRetryTimeout);
2616 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2617 cur_params.dot11MeshConfirmTimeout);
2618 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2619 cur_params.dot11MeshHoldingTimeout);
2620 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2621 cur_params.dot11MeshMaxPeerLinks);
2622 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2623 cur_params.dot11MeshMaxRetries);
2624 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2625 cur_params.dot11MeshTTL);
45904f21
JC		 2626 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2627 cur_params.element_ttl);
93da9cc1 2628 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2629 cur_params.auto_open_plinks);
2630 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2631 cur_params.dot11MeshHWMPmaxPREQretries);
2632 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2633 cur_params.path_refresh_time);
2634 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2635 cur_params.min_discovery_timeout);
2636 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2637 cur_params.dot11MeshHWMPactivePathTimeout);
2638 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2639 cur_params.dot11MeshHWMPpreqMinInterval);
2640 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2641 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2642 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2643 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2644 nla_nest_end(msg, pinfoattr);
2645 genlmsg_end(msg, hdr);
4c476991 2646 return genlmsg_reply(msg, info);
93da9cc1 2647
3b85875a 2648 nla_put_failure:
93da9cc1 2649 genlmsg_cancel(msg, hdr);
d080e275 2650 nlmsg_free(msg);
4c476991 2651 return -ENOBUFS;
93da9cc1 2652}
2653
b54452b0 2654static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2655 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2656 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2657 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2658 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2659 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2660 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2661 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2662 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2663
2664 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2665 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2666 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2667 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2668 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2669 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2670};
2671
bd90fdcc
JB		 2672static int nl80211_parse_mesh_params(struct genl_info *info,
2673 struct mesh_config *cfg,
2674 u32 *mask_out)
93da9cc1 2675{
93da9cc1 2676 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2677 u32 mask = 0;
93da9cc1 2678
bd90fdcc
JB		 2679#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2680do {\
2681 if (table[attr_num]) {\
2682 cfg->param = nla_fn(table[attr_num]); \
2683 mask |= (1 << (attr_num - 1)); \
2684 } \
2685} while (0);\
2686
2687
2688 if (!info->attrs[NL80211_ATTR_MESH_PARAMS])
93da9cc1 2689 return -EINVAL;
2690 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
bd90fdcc
JB		 2691 info->attrs[NL80211_ATTR_MESH_PARAMS],
2692 nl80211_meshconf_params_policy))
93da9cc1 2693 return -EINVAL;
2694
93da9cc1 2695 /* This makes sure that there aren't more than 32 mesh config
2696 * parameters (otherwise our bitfield scheme would not work.) */
2697 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2698
2699 /* Fill in the params struct */
93da9cc1 2700 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2701 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2702 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2703 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2705 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2706 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2707 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2708 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2709 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2710 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2711 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2713 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2715 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2717 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2718 nla_get_u8);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2720 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2722 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2723 nla_get_u16);
2724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2725 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2726 nla_get_u32);
2727 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2728 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2729 nla_get_u16);
2730 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2731 dot11MeshHWMPnetDiameterTraversalTime,
2732 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2733 nla_get_u16);
63c5723b
RP		 2734 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2735 dot11MeshHWMPRootMode, mask,
2736 NL80211_MESHCONF_HWMP_ROOTMODE,
2737 nla_get_u8);
93da9cc1 2738
bd90fdcc
JB		 2739 if (mask_out)
2740 *mask_out = mask;
2741 return 0;
2742
2743#undef FILL_IN_MESH_PARAM_IF_SET
2744}
2745
29cbe68c
JB		 2746static int nl80211_update_mesh_params(struct sk_buff *skb,
2747 struct genl_info *info)
bd90fdcc
JB		 2748{
2749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2750 struct net_device *dev = info->user_ptr[1];
29cbe68c 2751 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 2752 struct mesh_config cfg;
2753 u32 mask;
2754 int err;
2755
29cbe68c
JB		 2756 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2757 return -EOPNOTSUPP;
2758
2759 if (!rdev->ops->update_mesh_params)
bd90fdcc
JB		 2760 return -EOPNOTSUPP;
2761
2762 err = nl80211_parse_mesh_params(info, &cfg, &mask);
2763 if (err)
2764 return err;
2765
29cbe68c
JB		 2766 wdev_lock(wdev);
2767 if (!wdev->mesh_id_len)
2768 err = -ENOLINK;
2769
2770 if (!err)
2771 err = rdev->ops->update_mesh_params(&rdev->wiphy, dev,
2772 mask, &cfg);
2773
2774 wdev_unlock(wdev);
2775
2776 return err;
93da9cc1 2777}
2778
f130347c
LR		 2779static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2780{
2781 struct sk_buff *msg;
2782 void *hdr = NULL;
2783 struct nlattr *nl_reg_rules;
2784 unsigned int i;
2785 int err = -EINVAL;
2786
a1794390 2787 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2788
2789 if (!cfg80211_regdomain)
2790 goto out;
2791
fd2120ca 2792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2793 if (!msg) {
2794 err = -ENOBUFS;
2795 goto out;
2796 }
2797
2798 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2799 NL80211_CMD_GET_REG);
2800 if (!hdr)
2801 goto nla_put_failure;
2802
2803 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2804 cfg80211_regdomain->alpha2);
2805
2806 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2807 if (!nl_reg_rules)
2808 goto nla_put_failure;
2809
2810 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2811 struct nlattr *nl_reg_rule;
2812 const struct ieee80211_reg_rule *reg_rule;
2813 const struct ieee80211_freq_range *freq_range;
2814 const struct ieee80211_power_rule *power_rule;
2815
2816 reg_rule = &cfg80211_regdomain->reg_rules[i];
2817 freq_range = &reg_rule->freq_range;
2818 power_rule = &reg_rule->power_rule;
2819
2820 nl_reg_rule = nla_nest_start(msg, i);
2821 if (!nl_reg_rule)
2822 goto nla_put_failure;
2823
2824 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2825 reg_rule->flags);
2826 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2827 freq_range->start_freq_khz);
2828 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2829 freq_range->end_freq_khz);
2830 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2831 freq_range->max_bandwidth_khz);
2832 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2833 power_rule->max_antenna_gain);
2834 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2835 power_rule->max_eirp);
2836
2837 nla_nest_end(msg, nl_reg_rule);
2838 }
2839
2840 nla_nest_end(msg, nl_reg_rules);
2841
2842 genlmsg_end(msg, hdr);
134e6375 2843 err = genlmsg_reply(msg, info);
f130347c
LR		 2844 goto out;
2845
2846nla_put_failure:
2847 genlmsg_cancel(msg, hdr);
d080e275 2848 nlmsg_free(msg);
f130347c
LR		 2849 err = -EMSGSIZE;
2850out:
a1794390 2851 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2852 return err;
2853}
2854
b2e1b302
LR		 2855static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2856{
2857 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2858 struct nlattr *nl_reg_rule;
2859 char *alpha2 = NULL;
2860 int rem_reg_rules = 0, r = 0;
2861 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2862 struct ieee80211_regdomain *rd = NULL;
2863
2864 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2865 return -EINVAL;
2866
2867 if (!info->attrs[NL80211_ATTR_REG_RULES])
2868 return -EINVAL;
2869
2870 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2871
2872 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2873 rem_reg_rules) {
2874 num_rules++;
2875 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2876 return -EINVAL;
b2e1b302
LR		 2877 }
2878
61405e97
LR		 2879 mutex_lock(&cfg80211_mutex);
2880
d0e18f83
LR		 2881 if (!reg_is_valid_request(alpha2)) {
2882 r = -EINVAL;
2883 goto bad_reg;
2884 }
b2e1b302
LR		 2885
2886 size_of_regd = sizeof(struct ieee80211_regdomain) +
2887 (num_rules * sizeof(struct ieee80211_reg_rule));
2888
2889 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2890 if (!rd) {
2891 r = -ENOMEM;
2892 goto bad_reg;
2893 }
b2e1b302
LR		 2894
2895 rd->n_reg_rules = num_rules;
2896 rd->alpha2[0] = alpha2[0];
2897 rd->alpha2[1] = alpha2[1];
2898
2899 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2900 rem_reg_rules) {
2901 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2902 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2903 reg_rule_policy);
2904 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2905 if (r)
2906 goto bad_reg;
2907
2908 rule_idx++;
2909
d0e18f83
LR		 2910 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2911 r = -EINVAL;
b2e1b302 2912 goto bad_reg;
d0e18f83 2913 }
b2e1b302
LR		 2914 }
2915
2916 BUG_ON(rule_idx != num_rules);
2917
b2e1b302 2918 r = set_regdom(rd);
61405e97 2919
a1794390 2920 mutex_unlock(&cfg80211_mutex);
d0e18f83 2921
b2e1b302
LR		 2922 return r;
2923
d2372b31 2924 bad_reg:
61405e97 2925 mutex_unlock(&cfg80211_mutex);
b2e1b302 2926 kfree(rd);
d0e18f83 2927 return r;
b2e1b302
LR		 2928}
2929
83f5e2cf
JB		 2930static int validate_scan_freqs(struct nlattr *freqs)
2931{
2932 struct nlattr *attr1, *attr2;
2933 int n_channels = 0, tmp1, tmp2;
2934
2935 nla_for_each_nested(attr1, freqs, tmp1) {
2936 n_channels++;
2937 /*
2938 * Some hardware has a limited channel list for
2939 * scanning, and it is pretty much nonsensical
2940 * to scan for a channel twice, so disallow that
2941 * and don't require drivers to check that the
2942 * channel list they get isn't longer than what
2943 * they can scan, as long as they can scan all
2944 * the channels they registered at once.
2945 */
2946 nla_for_each_nested(attr2, freqs, tmp2)
2947 if (attr1 != attr2 &&
2948 nla_get_u32(attr1) == nla_get_u32(attr2))
2949 return 0;
2950 }
2951
2952 return n_channels;
2953}
2954
2a519311
JB		 2955static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2956{
4c476991
JB		 2957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2958 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2959 struct cfg80211_scan_request *request;
2960 struct cfg80211_ssid *ssid;
2961 struct ieee80211_channel *channel;
2962 struct nlattr *attr;
2963 struct wiphy *wiphy;
83f5e2cf 2964 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2965 enum ieee80211_band band;
70692ad2 2966 size_t ie_len;
2a519311 2967
f4a11bb0
JB		 2968 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2969 return -EINVAL;
2970
79c97e97 2971 wiphy = &rdev->wiphy;
2a519311 2972
4c476991
JB		 2973 if (!rdev->ops->scan)
2974 return -EOPNOTSUPP;
2a519311 2975
4c476991
JB		 2976 if (rdev->scan_req)
2977 return -EBUSY;
2a519311
JB		 2978
2979 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2980 n_channels = validate_scan_freqs(
2981 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2982 if (!n_channels)
2983 return -EINVAL;
2a519311 2984 } else {
83f5e2cf
JB		 2985 n_channels = 0;
2986
2a519311
JB		 2987 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2988 if (wiphy->bands[band])
2989 n_channels += wiphy->bands[band]->n_channels;
2990 }
2991
2992 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2993 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2994 n_ssids++;
2995
4c476991
JB		 2996 if (n_ssids > wiphy->max_scan_ssids)
2997 return -EINVAL;
2a519311 2998
70692ad2
JM		 2999 if (info->attrs[NL80211_ATTR_IE])
3000 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3001 else
3002 ie_len = 0;
3003
4c476991
JB		 3004 if (ie_len > wiphy->max_scan_ie_len)
3005 return -EINVAL;
18a83659 3006
2a519311
JB		 3007 request = kzalloc(sizeof(*request)
3008 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3009 + sizeof(channel) * n_channels
3010 + ie_len, GFP_KERNEL);
4c476991
JB		 3011 if (!request)
3012 return -ENOMEM;
2a519311 3013
2a519311 3014 if (n_ssids)
5ba63533 3015 request->ssids = (void *)&request->channels[n_channels];
2a519311 3016 request->n_ssids = n_ssids;
70692ad2
JM		 3017 if (ie_len) {
3018 if (request->ssids)
3019 request->ie = (void *)(request->ssids + n_ssids);
3020 else
3021 request->ie = (void *)(request->channels + n_channels);
3022 }
2a519311 3023
584991dc 3024 i = 0;
2a519311
JB		 3025 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3026 /* user specified, bail out if channel not found */
2a519311 3027 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3028 struct ieee80211_channel *chan;
3029
3030 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3031
3032 if (!chan) {
2a519311
JB		 3033 err = -EINVAL;
3034 goto out_free;
3035 }
584991dc
JB		 3036
3037 /* ignore disabled channels */
3038 if (chan->flags & IEEE80211_CHAN_DISABLED)
3039 continue;
3040
3041 request->channels[i] = chan;
2a519311
JB		 3042 i++;
3043 }
3044 } else {
3045 /* all channels */
2a519311
JB		 3046 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3047 int j;
3048 if (!wiphy->bands[band])
3049 continue;
3050 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3051 struct ieee80211_channel *chan;
3052
3053 chan = &wiphy->bands[band]->channels[j];
3054
3055 if (chan->flags & IEEE80211_CHAN_DISABLED)
3056 continue;
3057
3058 request->channels[i] = chan;
2a519311
JB		 3059 i++;
3060 }
3061 }
3062 }
3063
584991dc
JB		 3064 if (!i) {
3065 err = -EINVAL;
3066 goto out_free;
3067 }
3068
3069 request->n_channels = i;
3070
2a519311
JB		 3071 i = 0;
3072 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3073 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3074 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3075 err = -EINVAL;
3076 goto out_free;
3077 }
3078 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3079 request->ssids[i].ssid_len = nla_len(attr);
3080 i++;
3081 }
3082 }
3083
70692ad2
JM		 3084 if (info->attrs[NL80211_ATTR_IE]) {
3085 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3086 memcpy((void *)request->ie,
3087 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3088 request->ie_len);
3089 }
3090
463d0183 3091 request->dev = dev;
79c97e97 3092 request->wiphy = &rdev->wiphy;
2a519311 3093
79c97e97
JB		 3094 rdev->scan_req = request;
3095 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3096
463d0183 3097 if (!err) {
79c97e97 3098 nl80211_send_scan_start(rdev, dev);
463d0183 3099 dev_hold(dev);
4c476991 3100 } else {
2a519311 3101 out_free:
79c97e97 3102 rdev->scan_req = NULL;
2a519311
JB		 3103 kfree(request);
3104 }
3b85875a 3105
2a519311
JB		 3106 return err;
3107}
3108
3109static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3110 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3111 struct wireless_dev *wdev,
3112 struct cfg80211_internal_bss *intbss)
2a519311 3113{
48ab905d 3114 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3115 void *hdr;
3116 struct nlattr *bss;
48ab905d
JB		 3117 int i;
3118
3119 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3120
3121 hdr = nl80211hdr_put(msg, pid, seq, flags,
3122 NL80211_CMD_NEW_SCAN_RESULTS);
3123 if (!hdr)
3124 return -1;
3125
f5ea9120 3126 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3127 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3128
3129 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3130 if (!bss)
3131 goto nla_put_failure;
3132 if (!is_zero_ether_addr(res->bssid))
3133 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3134 if (res->information_elements && res->len_information_elements)
3135 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3136 res->len_information_elements,
3137 res->information_elements);
34a6eddb
JM		 3138 if (res->beacon_ies && res->len_beacon_ies &&
3139 res->beacon_ies != res->information_elements)
3140 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3141 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3142 if (res->tsf)
3143 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3144 if (res->beacon_interval)
3145 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3146 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3147 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3148 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3149 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3150
77965c97 3151 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3152 case CFG80211_SIGNAL_TYPE_MBM:
3153 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3154 break;
3155 case CFG80211_SIGNAL_TYPE_UNSPEC:
3156 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3157 break;
3158 default:
3159 break;
3160 }
3161
48ab905d 3162 switch (wdev->iftype) {
074ac8df 3163 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3164 case NL80211_IFTYPE_STATION:
3165 if (intbss == wdev->current_bss)
3166 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3167 NL80211_BSS_STATUS_ASSOCIATED);
3168 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3169 if (intbss != wdev->auth_bsses[i])
3170 continue;
3171 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3172 NL80211_BSS_STATUS_AUTHENTICATED);
3173 break;
3174 }
3175 break;
3176 case NL80211_IFTYPE_ADHOC:
3177 if (intbss == wdev->current_bss)
3178 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3179 NL80211_BSS_STATUS_IBSS_JOINED);
3180 break;
3181 default:
3182 break;
3183 }
3184
2a519311
JB		 3185 nla_nest_end(msg, bss);
3186
3187 return genlmsg_end(msg, hdr);
3188
3189 nla_put_failure:
3190 genlmsg_cancel(msg, hdr);
3191 return -EMSGSIZE;
3192}
3193
3194static int nl80211_dump_scan(struct sk_buff *skb,
3195 struct netlink_callback *cb)
3196{
48ab905d
JB		 3197 struct cfg80211_registered_device *rdev;
3198 struct net_device *dev;
2a519311 3199 struct cfg80211_internal_bss *scan;
48ab905d 3200 struct wireless_dev *wdev;
2a519311
JB		 3201 int start = cb->args[1], idx = 0;
3202 int err;
3203
67748893
JB		 3204 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3205 if (err)
3206 return err;
2a519311 3207
48ab905d 3208 wdev = dev->ieee80211_ptr;
2a519311 3209
48ab905d
JB		 3210 wdev_lock(wdev);
3211 spin_lock_bh(&rdev->bss_lock);
3212 cfg80211_bss_expire(rdev);
3213
3214 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3215 if (++idx <= start)
3216 continue;
3217 if (nl80211_send_bss(skb,
3218 NETLINK_CB(cb->skb).pid,
3219 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3220 rdev, wdev, scan) < 0) {
2a519311 3221 idx--;
67748893 3222 break;
2a519311
JB		 3223 }
3224 }
3225
48ab905d
JB		 3226 spin_unlock_bh(&rdev->bss_lock);
3227 wdev_unlock(wdev);
2a519311
JB		 3228
3229 cb->args[1] = idx;
67748893 3230 nl80211_finish_netdev_dump(rdev);
2a519311 3231
67748893 3232 return skb->len;
2a519311
JB		 3233}
3234
61fa713c
HS		 3235static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3236 int flags, struct net_device *dev,
3237 struct survey_info *survey)
3238{
3239 void *hdr;
3240 struct nlattr *infoattr;
3241
3242 /* Survey without a channel doesn't make sense */
3243 if (!survey->channel)
3244 return -EINVAL;
3245
3246 hdr = nl80211hdr_put(msg, pid, seq, flags,
3247 NL80211_CMD_NEW_SURVEY_RESULTS);
3248 if (!hdr)
3249 return -ENOMEM;
3250
3251 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3252
3253 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3254 if (!infoattr)
3255 goto nla_put_failure;
3256
3257 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3258 survey->channel->center_freq);
3259 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3260 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3261 survey->noise);
17e5a808
FF		 3262 if (survey->filled & SURVEY_INFO_IN_USE)
3263 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3264 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3265 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3266 survey->channel_time);
3267 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3268 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3269 survey->channel_time_busy);
3270 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3271 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3272 survey->channel_time_ext_busy);
3273 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3274 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3275 survey->channel_time_rx);
3276 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3277 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3278 survey->channel_time_tx);
61fa713c
HS		 3279
3280 nla_nest_end(msg, infoattr);
3281
3282 return genlmsg_end(msg, hdr);
3283
3284 nla_put_failure:
3285 genlmsg_cancel(msg, hdr);
3286 return -EMSGSIZE;
3287}
3288
3289static int nl80211_dump_survey(struct sk_buff *skb,
3290 struct netlink_callback *cb)
3291{
3292 struct survey_info survey;
3293 struct cfg80211_registered_device *dev;
3294 struct net_device *netdev;
61fa713c
HS		 3295 int survey_idx = cb->args[1];
3296 int res;
3297
67748893
JB		 3298 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3299 if (res)
3300 return res;
61fa713c
HS		 3301
3302 if (!dev->ops->dump_survey) {
3303 res = -EOPNOTSUPP;
3304 goto out_err;
3305 }
3306
3307 while (1) {
3308 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3309 &survey);
3310 if (res == -ENOENT)
3311 break;
3312 if (res)
3313 goto out_err;
3314
3315 if (nl80211_send_survey(skb,
3316 NETLINK_CB(cb->skb).pid,
3317 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3318 netdev,
3319 &survey) < 0)
3320 goto out;
3321 survey_idx++;
3322 }
3323
3324 out:
3325 cb->args[1] = survey_idx;
3326 res = skb->len;
3327 out_err:
67748893 3328 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3329 return res;
3330}
3331
255e737e
JM		 3332static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3333{
b23aa676
SO		 3334 return auth_type <= NL80211_AUTHTYPE_MAX;
3335}
3336
3337static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3338{
3339 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3340 NL80211_WPA_VERSION_2));
3341}
3342
3343static bool nl80211_valid_akm_suite(u32 akm)
3344{
3345 return akm == WLAN_AKM_SUITE_8021X ||
3346 akm == WLAN_AKM_SUITE_PSK;
3347}
3348
3349static bool nl80211_valid_cipher_suite(u32 cipher)
3350{
3351 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3352 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3353 cipher == WLAN_CIPHER_SUITE_TKIP ||
3354 cipher == WLAN_CIPHER_SUITE_CCMP ||
3355 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3356}
3357
b23aa676 3358
636a5d36
JM		 3359static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3360{
4c476991
JB		 3361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3362 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3363 struct ieee80211_channel *chan;
3364 const u8 *bssid, *ssid, *ie = NULL;
3365 int err, ssid_len, ie_len = 0;
3366 enum nl80211_auth_type auth_type;
fffd0934 3367 struct key_parse key;
d5cdfacb 3368 bool local_state_change;
636a5d36 3369
f4a11bb0
JB		 3370 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3371 return -EINVAL;
3372
3373 if (!info->attrs[NL80211_ATTR_MAC])
3374 return -EINVAL;
3375
1778092e
JM		 3376 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3377 return -EINVAL;
3378
19957bb3
JB		 3379 if (!info->attrs[NL80211_ATTR_SSID])
3380 return -EINVAL;
3381
3382 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3383 return -EINVAL;
3384
fffd0934
JB		 3385 err = nl80211_parse_key(info, &key);
3386 if (err)
3387 return err;
3388
3389 if (key.idx >= 0) {
e31b8213
JB		 3390 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3391 return -EINVAL;
fffd0934
JB		 3392 if (!key.p.key || !key.p.key_len)
3393 return -EINVAL;
3394 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3395 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3396 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3397 key.p.key_len != WLAN_KEY_LEN_WEP104))
3398 return -EINVAL;
3399 if (key.idx > 4)
3400 return -EINVAL;
3401 } else {
3402 key.p.key_len = 0;
3403 key.p.key = NULL;
3404 }
3405
afea0b7a
JB		 3406 if (key.idx >= 0) {
3407 int i;
3408 bool ok = false;
3409 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3410 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3411 ok = true;
3412 break;
3413 }
3414 }
4c476991
JB		 3415 if (!ok)
3416 return -EINVAL;
afea0b7a
JB		 3417 }
3418
4c476991
JB		 3419 if (!rdev->ops->auth)
3420 return -EOPNOTSUPP;
636a5d36 3421
074ac8df 3422 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3423 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3424 return -EOPNOTSUPP;
eec60b03 3425
19957bb3 3426 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3427 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3428 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3429 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3430 return -EINVAL;
636a5d36 3431
19957bb3
JB		 3432 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3433 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3434
3435 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3436 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3437 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3438 }
3439
19957bb3 3440 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3441 if (!nl80211_valid_auth_type(auth_type))
3442 return -EINVAL;
636a5d36 3443
d5cdfacb
JM		 3444 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3445
4c476991
JB		 3446 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3447 ssid, ssid_len, ie, ie_len,
3448 key.p.key, key.p.key_len, key.idx,
3449 local_state_change);
636a5d36
JM		 3450}
3451
c0692b8f
JB		 3452static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3453 struct genl_info *info,
3dc27d25
JB		 3454 struct cfg80211_crypto_settings *settings,
3455 int cipher_limit)
b23aa676 3456{
c0b2bbd8
JB		 3457 memset(settings, 0, sizeof(*settings));
3458
b23aa676
SO		 3459 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3460
c0692b8f
JB		 3461 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3462 u16 proto;
3463 proto = nla_get_u16(
3464 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3465 settings->control_port_ethertype = cpu_to_be16(proto);
3466 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3467 proto != ETH_P_PAE)
3468 return -EINVAL;
3469 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3470 settings->control_port_no_encrypt = true;
3471 } else
3472 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3473
b23aa676
SO		 3474 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3475 void *data;
3476 int len, i;
3477
3478 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3479 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3480 settings->n_ciphers_pairwise = len / sizeof(u32);
3481
3482 if (len % sizeof(u32))
3483 return -EINVAL;
3484
3dc27d25 3485 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3486 return -EINVAL;
3487
3488 memcpy(settings->ciphers_pairwise, data, len);
3489
3490 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3491 if (!nl80211_valid_cipher_suite(
3492 settings->ciphers_pairwise[i]))
3493 return -EINVAL;
3494 }
3495
3496 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3497 settings->cipher_group =
3498 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3499 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3500 return -EINVAL;
3501 }
3502
3503 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3504 settings->wpa_versions =
3505 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3506 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3507 return -EINVAL;
3508 }
3509
3510 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3511 void *data;
3512 int len, i;
3513
3514 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3515 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3516 settings->n_akm_suites = len / sizeof(u32);
3517
3518 if (len % sizeof(u32))
3519 return -EINVAL;
3520
3521 memcpy(settings->akm_suites, data, len);
3522
3523 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3524 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3525 return -EINVAL;
3526 }
3527
3528 return 0;
3529}
3530
636a5d36
JM		 3531static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3532{
4c476991
JB		 3533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3534 struct net_device *dev = info->user_ptr[1];
19957bb3 3535 struct cfg80211_crypto_settings crypto;
f444de05 3536 struct ieee80211_channel *chan;
3e5d7649 3537 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3538 int err, ssid_len, ie_len = 0;
3539 bool use_mfp = false;
636a5d36 3540
f4a11bb0
JB		 3541 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3542 return -EINVAL;
3543
3544 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3545 !info->attrs[NL80211_ATTR_SSID] ||
3546 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3547 return -EINVAL;
3548
4c476991
JB		 3549 if (!rdev->ops->assoc)
3550 return -EOPNOTSUPP;
636a5d36 3551
074ac8df 3552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3553 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3554 return -EOPNOTSUPP;
eec60b03 3555
19957bb3 3556 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3557
19957bb3
JB		 3558 chan = ieee80211_get_channel(&rdev->wiphy,
3559 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3560 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3561 return -EINVAL;
636a5d36 3562
19957bb3
JB		 3563 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3564 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3565
3566 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3567 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3568 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3569 }
3570
dc6382ce 3571 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3572 enum nl80211_mfp mfp =
dc6382ce 3573 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3574 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3575 use_mfp = true;
4c476991
JB		 3576 else if (mfp != NL80211_MFP_NO)
3577 return -EINVAL;
dc6382ce
JM		 3578 }
3579
3e5d7649
JB		 3580 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3581 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3582
c0692b8f 3583 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3584 if (!err)
3e5d7649
JB		 3585 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3586 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3587 &crypto);
636a5d36 3588
636a5d36
JM		 3589 return err;
3590}
3591
3592static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3593{
4c476991
JB		 3594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3595 struct net_device *dev = info->user_ptr[1];
19957bb3 3596 const u8 *ie = NULL, *bssid;
4c476991 3597 int ie_len = 0;
19957bb3 3598 u16 reason_code;
d5cdfacb 3599 bool local_state_change;
636a5d36 3600
f4a11bb0
JB		 3601 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3602 return -EINVAL;
3603
3604 if (!info->attrs[NL80211_ATTR_MAC])
3605 return -EINVAL;
3606
3607 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3608 return -EINVAL;
3609
4c476991
JB		 3610 if (!rdev->ops->deauth)
3611 return -EOPNOTSUPP;
636a5d36 3612
074ac8df 3613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3614 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3615 return -EOPNOTSUPP;
eec60b03 3616
19957bb3 3617 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3618
19957bb3
JB		 3619 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3620 if (reason_code == 0) {
f4a11bb0 3621 /* Reason Code 0 is reserved */
4c476991 3622 return -EINVAL;
255e737e 3623 }
636a5d36
JM		 3624
3625 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3626 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3627 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3628 }
3629
d5cdfacb
JM		 3630 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3631
4c476991
JB		 3632 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3633 local_state_change);
636a5d36
JM		 3634}
3635
3636static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3637{
4c476991
JB		 3638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3639 struct net_device *dev = info->user_ptr[1];
19957bb3 3640 const u8 *ie = NULL, *bssid;
4c476991 3641 int ie_len = 0;
19957bb3 3642 u16 reason_code;
d5cdfacb 3643 bool local_state_change;
636a5d36 3644
f4a11bb0
JB		 3645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3646 return -EINVAL;
3647
3648 if (!info->attrs[NL80211_ATTR_MAC])
3649 return -EINVAL;
3650
3651 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3652 return -EINVAL;
3653
4c476991
JB		 3654 if (!rdev->ops->disassoc)
3655 return -EOPNOTSUPP;
636a5d36 3656
074ac8df 3657 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3659 return -EOPNOTSUPP;
eec60b03 3660
19957bb3 3661 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3662
19957bb3
JB		 3663 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3664 if (reason_code == 0) {
f4a11bb0 3665 /* Reason Code 0 is reserved */
4c476991 3666 return -EINVAL;
255e737e 3667 }
636a5d36
JM		 3668
3669 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3670 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3671 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3672 }
3673
d5cdfacb
JM		 3674 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3675
4c476991
JB		 3676 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3677 local_state_change);
636a5d36
JM		 3678}
3679
dd5b4cc7
FF		 3680static bool
3681nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3682 int mcast_rate[IEEE80211_NUM_BANDS],
3683 int rateval)
3684{
3685 struct wiphy *wiphy = &rdev->wiphy;
3686 bool found = false;
3687 int band, i;
3688
3689 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3690 struct ieee80211_supported_band *sband;
3691
3692 sband = wiphy->bands[band];
3693 if (!sband)
3694 continue;
3695
3696 for (i = 0; i < sband->n_bitrates; i++) {
3697 if (sband->bitrates[i].bitrate == rateval) {
3698 mcast_rate[band] = i + 1;
3699 found = true;
3700 break;
3701 }
3702 }
3703 }
3704
3705 return found;
3706}
3707
04a773ad
JB		 3708static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3709{
4c476991
JB		 3710 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3711 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3712 struct cfg80211_ibss_params ibss;
3713 struct wiphy *wiphy;
fffd0934 3714 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3715 int err;
3716
8e30bc55
JB		 3717 memset(&ibss, 0, sizeof(ibss));
3718
04a773ad
JB		 3719 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3720 return -EINVAL;
3721
3722 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3723 !info->attrs[NL80211_ATTR_SSID] ||
3724 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3725 return -EINVAL;
3726
8e30bc55
JB		 3727 ibss.beacon_interval = 100;
3728
3729 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3730 ibss.beacon_interval =
3731 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3732 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3733 return -EINVAL;
3734 }
3735
4c476991
JB		 3736 if (!rdev->ops->join_ibss)
3737 return -EOPNOTSUPP;
04a773ad 3738
4c476991
JB		 3739 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3740 return -EOPNOTSUPP;
04a773ad 3741
79c97e97 3742 wiphy = &rdev->wiphy;
04a773ad
JB		 3743
3744 if (info->attrs[NL80211_ATTR_MAC])
3745 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3746 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3747 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3748
3749 if (info->attrs[NL80211_ATTR_IE]) {
3750 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3751 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3752 }
3753
3754 ibss.channel = ieee80211_get_channel(wiphy,
3755 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3756 if (!ibss.channel ||
3757 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3758 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3759 return -EINVAL;
04a773ad
JB		 3760
3761 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3762 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3763
fbd2c8dc
TP		 3764 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3765 u8 *rates =
3766 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3767 int n_rates =
3768 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3769 struct ieee80211_supported_band *sband =
3770 wiphy->bands[ibss.channel->band];
3771 int i, j;
3772
4c476991
JB		 3773 if (n_rates == 0)
3774 return -EINVAL;
fbd2c8dc
TP		 3775
3776 for (i = 0; i < n_rates; i++) {
3777 int rate = (rates[i] & 0x7f) * 5;
3778 bool found = false;
3779
3780 for (j = 0; j < sband->n_bitrates; j++) {
3781 if (sband->bitrates[j].bitrate == rate) {
3782 found = true;
3783 ibss.basic_rates |= BIT(j);
3784 break;
3785 }
3786 }
4c476991
JB		 3787 if (!found)
3788 return -EINVAL;
fbd2c8dc 3789 }
fbd2c8dc 3790 }
dd5b4cc7
FF		 3791
3792 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3793 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3794 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3795 return -EINVAL;
fbd2c8dc 3796
4c476991
JB		 3797 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3798 connkeys = nl80211_parse_connkeys(rdev,
3799 info->attrs[NL80211_ATTR_KEYS]);
3800 if (IS_ERR(connkeys))
3801 return PTR_ERR(connkeys);
3802 }
04a773ad 3803
4c476991 3804 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3805 if (err)
3806 kfree(connkeys);
04a773ad
JB		 3807 return err;
3808}
3809
3810static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3811{
4c476991
JB		 3812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3813 struct net_device *dev = info->user_ptr[1];
04a773ad 3814
4c476991
JB		 3815 if (!rdev->ops->leave_ibss)
3816 return -EOPNOTSUPP;
04a773ad 3817
4c476991
JB		 3818 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3819 return -EOPNOTSUPP;
04a773ad 3820
4c476991 3821 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3822}
3823
aff89a9b
JB		 3824#ifdef CONFIG_NL80211_TESTMODE
3825static struct genl_multicast_group nl80211_testmode_mcgrp = {
3826 .name = "testmode",
3827};
3828
3829static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3830{
4c476991 3831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3832 int err;
3833
3834 if (!info->attrs[NL80211_ATTR_TESTDATA])
3835 return -EINVAL;
3836
aff89a9b
JB		 3837 err = -EOPNOTSUPP;
3838 if (rdev->ops->testmode_cmd) {
3839 rdev->testmode_info = info;
3840 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3841 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3842 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3843 rdev->testmode_info = NULL;
3844 }
3845
aff89a9b
JB		 3846 return err;
3847}
3848
3849static struct sk_buff *
3850__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3851 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3852{
3853 struct sk_buff *skb;
3854 void *hdr;
3855 struct nlattr *data;
3856
3857 skb = nlmsg_new(approxlen + 100, gfp);
3858 if (!skb)
3859 return NULL;
3860
3861 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3862 if (!hdr) {
3863 kfree_skb(skb);
3864 return NULL;
3865 }
3866
3867 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3868 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3869
3870 ((void **)skb->cb)[0] = rdev;
3871 ((void **)skb->cb)[1] = hdr;
3872 ((void **)skb->cb)[2] = data;
3873
3874 return skb;
3875
3876 nla_put_failure:
3877 kfree_skb(skb);
3878 return NULL;
3879}
3880
3881struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3882 int approxlen)
3883{
3884 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3885
3886 if (WARN_ON(!rdev->testmode_info))
3887 return NULL;
3888
3889 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3890 rdev->testmode_info->snd_pid,
3891 rdev->testmode_info->snd_seq,
3892 GFP_KERNEL);
3893}
3894EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3895
3896int cfg80211_testmode_reply(struct sk_buff *skb)
3897{
3898 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3899 void *hdr = ((void **)skb->cb)[1];
3900 struct nlattr *data = ((void **)skb->cb)[2];
3901
3902 if (WARN_ON(!rdev->testmode_info)) {
3903 kfree_skb(skb);
3904 return -EINVAL;
3905 }
3906
3907 nla_nest_end(skb, data);
3908 genlmsg_end(skb, hdr);
3909 return genlmsg_reply(skb, rdev->testmode_info);
3910}
3911EXPORT_SYMBOL(cfg80211_testmode_reply);
3912
3913struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3914 int approxlen, gfp_t gfp)
3915{
3916 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3917
3918 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3919}
3920EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3921
3922void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3923{
3924 void *hdr = ((void **)skb->cb)[1];
3925 struct nlattr *data = ((void **)skb->cb)[2];
3926
3927 nla_nest_end(skb, data);
3928 genlmsg_end(skb, hdr);
3929 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3930}
3931EXPORT_SYMBOL(cfg80211_testmode_event);
3932#endif
3933
b23aa676
SO		 3934static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3935{
4c476991
JB		 3936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3937 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3938 struct cfg80211_connect_params connect;
3939 struct wiphy *wiphy;
fffd0934 3940 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3941 int err;
3942
3943 memset(&connect, 0, sizeof(connect));
3944
3945 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3946 return -EINVAL;
3947
3948 if (!info->attrs[NL80211_ATTR_SSID] ||
3949 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3950 return -EINVAL;
3951
3952 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3953 connect.auth_type =
3954 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3955 if (!nl80211_valid_auth_type(connect.auth_type))
3956 return -EINVAL;
3957 } else
3958 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3959
3960 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3961
c0692b8f 3962 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3963 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3964 if (err)
3965 return err;
b23aa676 3966
074ac8df 3967 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3968 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3969 return -EOPNOTSUPP;
b23aa676 3970
79c97e97 3971 wiphy = &rdev->wiphy;
b23aa676 3972
b23aa676
SO		 3973 if (info->attrs[NL80211_ATTR_MAC])
3974 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3975 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3976 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3977
3978 if (info->attrs[NL80211_ATTR_IE]) {
3979 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3980 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3981 }
3982
3983 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3984 connect.channel =
3985 ieee80211_get_channel(wiphy,
3986 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3987 if (!connect.channel ||
4c476991
JB		 3988 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3989 return -EINVAL;
b23aa676
SO		 3990 }
3991
fffd0934
JB		 3992 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3993 connkeys = nl80211_parse_connkeys(rdev,
3994 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3995 if (IS_ERR(connkeys))
3996 return PTR_ERR(connkeys);
fffd0934
JB		 3997 }
3998
3999 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4000 if (err)
4001 kfree(connkeys);
b23aa676
SO		 4002 return err;
4003}
4004
4005static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4006{
4c476991
JB		 4007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4008 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4009 u16 reason;
4010
4011 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4012 reason = WLAN_REASON_DEAUTH_LEAVING;
4013 else
4014 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4015
4016 if (reason == 0)
4017 return -EINVAL;
4018
074ac8df 4019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4020 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4021 return -EOPNOTSUPP;
b23aa676 4022
4c476991 4023 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4024}
4025
463d0183
JB		 4026static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4027{
4c476991 4028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4029 struct net *net;
4030 int err;
4031 u32 pid;
4032
4033 if (!info->attrs[NL80211_ATTR_PID])
4034 return -EINVAL;
4035
4036 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4037
463d0183 4038 net = get_net_ns_by_pid(pid);
4c476991
JB		 4039 if (IS_ERR(net))
4040 return PTR_ERR(net);
463d0183
JB		 4041
4042 err = 0;
4043
4044 /* check if anything to do */
4c476991
JB		 4045 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4046 err = cfg80211_switch_netns(rdev, net);
463d0183 4047
463d0183 4048 put_net(net);
463d0183
JB		 4049 return err;
4050}
4051
67fbb16b
SO		 4052static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4053{
4c476991 4054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4055 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4056 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4057 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4058 struct cfg80211_pmksa pmksa;
4059
4060 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4061
4062 if (!info->attrs[NL80211_ATTR_MAC])
4063 return -EINVAL;
4064
4065 if (!info->attrs[NL80211_ATTR_PMKID])
4066 return -EINVAL;
4067
67fbb16b
SO		 4068 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4069 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4070
074ac8df 4071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4073 return -EOPNOTSUPP;
67fbb16b
SO		 4074
4075 switch (info->genlhdr->cmd) {
4076 case NL80211_CMD_SET_PMKSA:
4077 rdev_ops = rdev->ops->set_pmksa;
4078 break;
4079 case NL80211_CMD_DEL_PMKSA:
4080 rdev_ops = rdev->ops->del_pmksa;
4081 break;
4082 default:
4083 WARN_ON(1);
4084 break;
4085 }
4086
4c476991
JB		 4087 if (!rdev_ops)
4088 return -EOPNOTSUPP;
67fbb16b 4089
4c476991 4090 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4091}
4092
4093static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4094{
4c476991
JB		 4095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4096 struct net_device *dev = info->user_ptr[1];
67fbb16b 4097
074ac8df 4098 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4099 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4100 return -EOPNOTSUPP;
67fbb16b 4101
4c476991
JB		 4102 if (!rdev->ops->flush_pmksa)
4103 return -EOPNOTSUPP;
67fbb16b 4104
4c476991 4105 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4106}
4107
9588bbd5
JM		 4108static int nl80211_remain_on_channel(struct sk_buff *skb,
4109 struct genl_info *info)
4110{
4c476991
JB		 4111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4112 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4113 struct ieee80211_channel *chan;
4114 struct sk_buff *msg;
4115 void *hdr;
4116 u64 cookie;
4117 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4118 u32 freq, duration;
4119 int err;
4120
4121 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4122 !info->attrs[NL80211_ATTR_DURATION])
4123 return -EINVAL;
4124
4125 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4126
4127 /*
4128 * We should be on that channel for at least one jiffie,
4129 * and more than 5 seconds seems excessive.
4130 */
4131 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4132 return -EINVAL;
4133
4c476991
JB		 4134 if (!rdev->ops->remain_on_channel)
4135 return -EOPNOTSUPP;
9588bbd5 4136
9588bbd5
JM		 4137 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4138 channel_type = nla_get_u32(
4139 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4140 if (channel_type != NL80211_CHAN_NO_HT &&
4141 channel_type != NL80211_CHAN_HT20 &&
4142 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4143 channel_type != NL80211_CHAN_HT40MINUS)
4144 return -EINVAL;
9588bbd5
JM		 4145 }
4146
4147 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4148 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4149 if (chan == NULL)
4150 return -EINVAL;
9588bbd5
JM		 4151
4152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4153 if (!msg)
4154 return -ENOMEM;
9588bbd5
JM		 4155
4156 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4157 NL80211_CMD_REMAIN_ON_CHANNEL);
4158
4159 if (IS_ERR(hdr)) {
4160 err = PTR_ERR(hdr);
4161 goto free_msg;
4162 }
4163
4164 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4165 channel_type, duration, &cookie);
4166
4167 if (err)
4168 goto free_msg;
4169
4170 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4171
4172 genlmsg_end(msg, hdr);
4c476991
JB		 4173
4174 return genlmsg_reply(msg, info);
9588bbd5
JM		 4175
4176 nla_put_failure:
4177 err = -ENOBUFS;
4178 free_msg:
4179 nlmsg_free(msg);
9588bbd5
JM		 4180 return err;
4181}
4182
4183static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4184 struct genl_info *info)
4185{
4c476991
JB		 4186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4187 struct net_device *dev = info->user_ptr[1];
9588bbd5 4188 u64 cookie;
9588bbd5
JM		 4189
4190 if (!info->attrs[NL80211_ATTR_COOKIE])
4191 return -EINVAL;
4192
4c476991
JB		 4193 if (!rdev->ops->cancel_remain_on_channel)
4194 return -EOPNOTSUPP;
9588bbd5 4195
9588bbd5
JM		 4196 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4197
4c476991 4198 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4199}
4200
13ae75b1
JM		 4201static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4202 u8 *rates, u8 rates_len)
4203{
4204 u8 i;
4205 u32 mask = 0;
4206
4207 for (i = 0; i < rates_len; i++) {
4208 int rate = (rates[i] & 0x7f) * 5;
4209 int ridx;
4210 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4211 struct ieee80211_rate *srate =
4212 &sband->bitrates[ridx];
4213 if (rate == srate->bitrate) {
4214 mask |= 1 << ridx;
4215 break;
4216 }
4217 }
4218 if (ridx == sband->n_bitrates)
4219 return 0; /* rate not found */
4220 }
4221
4222 return mask;
4223}
4224
b54452b0 4225static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4226 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4227 .len = NL80211_MAX_SUPP_RATES },
4228};
4229
4230static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4231 struct genl_info *info)
4232{
4233 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4235 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4236 int rem, i;
4237 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4238 struct nlattr *tx_rates;
4239 struct ieee80211_supported_band *sband;
4240
4241 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4242 return -EINVAL;
4243
4c476991
JB		 4244 if (!rdev->ops->set_bitrate_mask)
4245 return -EOPNOTSUPP;
13ae75b1
JM		 4246
4247 memset(&mask, 0, sizeof(mask));
4248 /* Default to all rates enabled */
4249 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4250 sband = rdev->wiphy.bands[i];
4251 mask.control[i].legacy =
4252 sband ? (1 << sband->n_bitrates) - 1 : 0;
4253 }
4254
4255 /*
4256 * The nested attribute uses enum nl80211_band as the index. This maps
4257 * directly to the enum ieee80211_band values used in cfg80211.
4258 */
4259 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4260 {
4261 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4262 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4263 return -EINVAL;
13ae75b1 4264 sband = rdev->wiphy.bands[band];
4c476991
JB		 4265 if (sband == NULL)
4266 return -EINVAL;
13ae75b1
JM		 4267 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4268 nla_len(tx_rates), nl80211_txattr_policy);
4269 if (tb[NL80211_TXRATE_LEGACY]) {
4270 mask.control[band].legacy = rateset_to_mask(
4271 sband,
4272 nla_data(tb[NL80211_TXRATE_LEGACY]),
4273 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4274 if (mask.control[band].legacy == 0)
4275 return -EINVAL;
13ae75b1
JM		 4276 }
4277 }
4278
4c476991 4279 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4280}
4281
2e161f78 4282static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4283{
4c476991
JB		 4284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4285 struct net_device *dev = info->user_ptr[1];
2e161f78 4286 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4287
4288 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4289 return -EINVAL;
4290
2e161f78
JB		 4291 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4292 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4293
9d38d85d 4294 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4296 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4297 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4298 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4299 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4300 return -EOPNOTSUPP;
026331c4
JM		 4301
4302 /* not much point in registering if we can't reply */
4c476991
JB		 4303 if (!rdev->ops->mgmt_tx)
4304 return -EOPNOTSUPP;
026331c4 4305
4c476991 4306 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4307 frame_type,
026331c4
JM		 4308 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4309 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4310}
4311
2e161f78 4312static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4313{
4c476991
JB		 4314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4315 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4316 struct ieee80211_channel *chan;
4317 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4318 bool channel_type_valid = false;
026331c4
JM		 4319 u32 freq;
4320 int err;
4321 void *hdr;
4322 u64 cookie;
4323 struct sk_buff *msg;
f7ca38df
JB		 4324 unsigned int wait = 0;
4325 bool offchan;
026331c4
JM		 4326
4327 if (!info->attrs[NL80211_ATTR_FRAME] ||
4328 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4329 return -EINVAL;
4330
4c476991
JB		 4331 if (!rdev->ops->mgmt_tx)
4332 return -EOPNOTSUPP;
026331c4 4333
9d38d85d 4334 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4335 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4336 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4337 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4338 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4340 return -EOPNOTSUPP;
026331c4 4341
f7ca38df
JB		 4342 if (info->attrs[NL80211_ATTR_DURATION]) {
4343 if (!rdev->ops->mgmt_tx_cancel_wait)
4344 return -EINVAL;
4345 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4346 }
4347
026331c4
JM		 4348 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4349 channel_type = nla_get_u32(
4350 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4351 if (channel_type != NL80211_CHAN_NO_HT &&
4352 channel_type != NL80211_CHAN_HT20 &&
4353 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4354 channel_type != NL80211_CHAN_HT40MINUS)
4355 return -EINVAL;
252aa631 4356 channel_type_valid = true;
026331c4
JM		 4357 }
4358
f7ca38df
JB		 4359 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4360
026331c4
JM		 4361 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4362 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4363 if (chan == NULL)
4364 return -EINVAL;
026331c4
JM		 4365
4366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4367 if (!msg)
4368 return -ENOMEM;
026331c4
JM		 4369
4370 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4371 NL80211_CMD_FRAME);
026331c4
JM		 4372
4373 if (IS_ERR(hdr)) {
4374 err = PTR_ERR(hdr);
4375 goto free_msg;
4376 }
f7ca38df
JB		 4377 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4378 channel_type_valid, wait,
2e161f78
JB		 4379 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4380 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4381 &cookie);
026331c4
JM		 4382 if (err)
4383 goto free_msg;
4384
4385 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4386
4387 genlmsg_end(msg, hdr);
4c476991 4388 return genlmsg_reply(msg, info);
026331c4
JM		 4389
4390 nla_put_failure:
4391 err = -ENOBUFS;
4392 free_msg:
4393 nlmsg_free(msg);
026331c4
JM		 4394 return err;
4395}
4396
f7ca38df
JB		 4397static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4398{
4399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4400 struct net_device *dev = info->user_ptr[1];
4401 u64 cookie;
4402
4403 if (!info->attrs[NL80211_ATTR_COOKIE])
4404 return -EINVAL;
4405
4406 if (!rdev->ops->mgmt_tx_cancel_wait)
4407 return -EOPNOTSUPP;
4408
4409 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4410 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4412 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4413 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4414 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4415 return -EOPNOTSUPP;
4416
4417 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4418
4419 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4420}
4421
ffb9eb3d
KV		 4422static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4423{
4c476991 4424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4425 struct wireless_dev *wdev;
4c476991 4426 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4427 u8 ps_state;
4428 bool state;
4429 int err;
4430
4c476991
JB		 4431 if (!info->attrs[NL80211_ATTR_PS_STATE])
4432 return -EINVAL;
ffb9eb3d
KV		 4433
4434 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4435
4c476991
JB		 4436 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4437 return -EINVAL;
ffb9eb3d
KV		 4438
4439 wdev = dev->ieee80211_ptr;
4440
4c476991
JB		 4441 if (!rdev->ops->set_power_mgmt)
4442 return -EOPNOTSUPP;
ffb9eb3d
KV		 4443
4444 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4445
4446 if (state == wdev->ps)
4c476991 4447 return 0;
ffb9eb3d 4448
4c476991
JB		 4449 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4450 wdev->ps_timeout);
4451 if (!err)
4452 wdev->ps = state;
ffb9eb3d
KV		 4453 return err;
4454}
4455
4456static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4457{
4c476991 4458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4459 enum nl80211_ps_state ps_state;
4460 struct wireless_dev *wdev;
4c476991 4461 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4462 struct sk_buff *msg;
4463 void *hdr;
4464 int err;
4465
ffb9eb3d
KV		 4466 wdev = dev->ieee80211_ptr;
4467
4c476991
JB		 4468 if (!rdev->ops->set_power_mgmt)
4469 return -EOPNOTSUPP;
ffb9eb3d
KV		 4470
4471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4472 if (!msg)
4473 return -ENOMEM;
ffb9eb3d
KV		 4474
4475 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4476 NL80211_CMD_GET_POWER_SAVE);
4477 if (!hdr) {
4c476991 4478 err = -ENOBUFS;
ffb9eb3d
KV		 4479 goto free_msg;
4480 }
4481
4482 if (wdev->ps)
4483 ps_state = NL80211_PS_ENABLED;
4484 else
4485 ps_state = NL80211_PS_DISABLED;
4486
4487 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4488
4489 genlmsg_end(msg, hdr);
4c476991 4490 return genlmsg_reply(msg, info);
ffb9eb3d 4491
4c476991 4492 nla_put_failure:
ffb9eb3d 4493 err = -ENOBUFS;
4c476991 4494 free_msg:
ffb9eb3d 4495 nlmsg_free(msg);
ffb9eb3d
KV		 4496 return err;
4497}
4498
d6dc1a38
JO		 4499static struct nla_policy
4500nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4501 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4502 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4503 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4504};
4505
4506static int nl80211_set_cqm_rssi(struct genl_info *info,
4507 s32 threshold, u32 hysteresis)
4508{
4c476991 4509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4510 struct wireless_dev *wdev;
4c476991 4511 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4512
4513 if (threshold > 0)
4514 return -EINVAL;
4515
d6dc1a38
JO		 4516 wdev = dev->ieee80211_ptr;
4517
4c476991
JB		 4518 if (!rdev->ops->set_cqm_rssi_config)
4519 return -EOPNOTSUPP;
d6dc1a38 4520
074ac8df 4521 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4522 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4523 return -EOPNOTSUPP;
d6dc1a38 4524
4c476991
JB		 4525 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4526 threshold, hysteresis);
d6dc1a38
JO		 4527}
4528
4529static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4530{
4531 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4532 struct nlattr *cqm;
4533 int err;
4534
4535 cqm = info->attrs[NL80211_ATTR_CQM];
4536 if (!cqm) {
4537 err = -EINVAL;
4538 goto out;
4539 }
4540
4541 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4542 nl80211_attr_cqm_policy);
4543 if (err)
4544 goto out;
4545
4546 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4547 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4548 s32 threshold;
4549 u32 hysteresis;
4550 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4551 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4552 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4553 } else
4554 err = -EINVAL;
4555
4556out:
4557 return err;
4558}
4559
29cbe68c
JB		 4560static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
4561{
4562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4563 struct net_device *dev = info->user_ptr[1];
4564 struct mesh_config cfg;
4565 int err;
4566
4567 /* start with default */
4568 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
4569
4570 if (info->attrs[NL80211_ATTR_MESH_PARAMS]) {
4571 /* and parse parameters if given */
4572 err = nl80211_parse_mesh_params(info, &cfg, NULL);
4573 if (err)
4574 return err;
4575 }
4576
4577 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
4578 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
4579 return -EINVAL;
4580
4581 return cfg80211_join_mesh(rdev, dev,
4582 nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
4583 nla_len(info->attrs[NL80211_ATTR_MESH_ID]),
4584 &cfg);
4585}
4586
4587static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
4588{
4589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4590 struct net_device *dev = info->user_ptr[1];
4591
4592 return cfg80211_leave_mesh(rdev, dev);
4593}
4594
4c476991
JB		 4595#define NL80211_FLAG_NEED_WIPHY 0x01
4596#define NL80211_FLAG_NEED_NETDEV 0x02
4597#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4598#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4599#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4600 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4601
4602static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4603 struct genl_info *info)
4604{
4605 struct cfg80211_registered_device *rdev;
4606 struct net_device *dev;
4607 int err;
4608 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4609
4610 if (rtnl)
4611 rtnl_lock();
4612
4613 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4614 rdev = cfg80211_get_dev_from_info(info);
4615 if (IS_ERR(rdev)) {
4616 if (rtnl)
4617 rtnl_unlock();
4618 return PTR_ERR(rdev);
4619 }
4620 info->user_ptr[0] = rdev;
4621 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4622 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4623 if (err) {
4624 if (rtnl)
4625 rtnl_unlock();
4626 return err;
4627 }
41265714
JB		 4628 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4629 !netif_running(dev)) {
d537f5fd
JB		 4630 cfg80211_unlock_rdev(rdev);
4631 dev_put(dev);
41265714
JB		 4632 if (rtnl)
4633 rtnl_unlock();
4634 return -ENETDOWN;
4635 }
4c476991
JB		 4636 info->user_ptr[0] = rdev;
4637 info->user_ptr[1] = dev;
4638 }
4639
4640 return 0;
4641}
4642
4643static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4644 struct genl_info *info)
4645{
4646 if (info->user_ptr[0])
4647 cfg80211_unlock_rdev(info->user_ptr[0]);
4648 if (info->user_ptr[1])
4649 dev_put(info->user_ptr[1]);
4650 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4651 rtnl_unlock();
4652}
4653
55682965
JB		 4654static struct genl_ops nl80211_ops[] = {
4655 {
4656 .cmd = NL80211_CMD_GET_WIPHY,
4657 .doit = nl80211_get_wiphy,
4658 .dumpit = nl80211_dump_wiphy,
4659 .policy = nl80211_policy,
4660 /* can be retrieved by unprivileged users */
4c476991 4661 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4662 },
4663 {
4664 .cmd = NL80211_CMD_SET_WIPHY,
4665 .doit = nl80211_set_wiphy,
4666 .policy = nl80211_policy,
4667 .flags = GENL_ADMIN_PERM,
4c476991 4668 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4669 },
4670 {
4671 .cmd = NL80211_CMD_GET_INTERFACE,
4672 .doit = nl80211_get_interface,
4673 .dumpit = nl80211_dump_interface,
4674 .policy = nl80211_policy,
4675 /* can be retrieved by unprivileged users */
4c476991 4676 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4677 },
4678 {
4679 .cmd = NL80211_CMD_SET_INTERFACE,
4680 .doit = nl80211_set_interface,
4681 .policy = nl80211_policy,
4682 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4683 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4684 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4685 },
4686 {
4687 .cmd = NL80211_CMD_NEW_INTERFACE,
4688 .doit = nl80211_new_interface,
4689 .policy = nl80211_policy,
4690 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4691 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4692 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4693 },
4694 {
4695 .cmd = NL80211_CMD_DEL_INTERFACE,
4696 .doit = nl80211_del_interface,
4697 .policy = nl80211_policy,
41ade00f 4698 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4699 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4700 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4701 },
4702 {
4703 .cmd = NL80211_CMD_GET_KEY,
4704 .doit = nl80211_get_key,
4705 .policy = nl80211_policy,
4706 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4707 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4708 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4709 },
4710 {
4711 .cmd = NL80211_CMD_SET_KEY,
4712 .doit = nl80211_set_key,
4713 .policy = nl80211_policy,
4714 .flags = GENL_ADMIN_PERM,
41265714 4715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4716 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4717 },
4718 {
4719 .cmd = NL80211_CMD_NEW_KEY,
4720 .doit = nl80211_new_key,
4721 .policy = nl80211_policy,
4722 .flags = GENL_ADMIN_PERM,
41265714 4723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4724 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4725 },
4726 {
4727 .cmd = NL80211_CMD_DEL_KEY,
4728 .doit = nl80211_del_key,
4729 .policy = nl80211_policy,
55682965 4730 .flags = GENL_ADMIN_PERM,
41265714 4731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4732 NL80211_FLAG_NEED_RTNL,
55682965 4733 },
ed1b6cc7
JB		 4734 {
4735 .cmd = NL80211_CMD_SET_BEACON,
4736 .policy = nl80211_policy,
4737 .flags = GENL_ADMIN_PERM,
4738 .doit = nl80211_addset_beacon,
4c476991
JB		 4739 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4740 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4741 },
4742 {
4743 .cmd = NL80211_CMD_NEW_BEACON,
4744 .policy = nl80211_policy,
4745 .flags = GENL_ADMIN_PERM,
4746 .doit = nl80211_addset_beacon,
4c476991
JB		 4747 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4748 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4749 },
4750 {
4751 .cmd = NL80211_CMD_DEL_BEACON,
4752 .policy = nl80211_policy,
4753 .flags = GENL_ADMIN_PERM,
4754 .doit = nl80211_del_beacon,
4c476991
JB		 4755 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4756 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4757 },
5727ef1b
JB		 4758 {
4759 .cmd = NL80211_CMD_GET_STATION,
4760 .doit = nl80211_get_station,
2ec600d6 4761 .dumpit = nl80211_dump_station,
5727ef1b 4762 .policy = nl80211_policy,
4c476991
JB		 4763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4764 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4765 },
4766 {
4767 .cmd = NL80211_CMD_SET_STATION,
4768 .doit = nl80211_set_station,
4769 .policy = nl80211_policy,
4770 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4771 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4772 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4773 },
4774 {
4775 .cmd = NL80211_CMD_NEW_STATION,
4776 .doit = nl80211_new_station,
4777 .policy = nl80211_policy,
4778 .flags = GENL_ADMIN_PERM,
41265714 4779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4780 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4781 },
4782 {
4783 .cmd = NL80211_CMD_DEL_STATION,
4784 .doit = nl80211_del_station,
4785 .policy = nl80211_policy,
2ec600d6 4786 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4787 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4788 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4789 },
4790 {
4791 .cmd = NL80211_CMD_GET_MPATH,
4792 .doit = nl80211_get_mpath,
4793 .dumpit = nl80211_dump_mpath,
4794 .policy = nl80211_policy,
4795 .flags = GENL_ADMIN_PERM,
41265714 4796 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4797 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4798 },
4799 {
4800 .cmd = NL80211_CMD_SET_MPATH,
4801 .doit = nl80211_set_mpath,
4802 .policy = nl80211_policy,
4803 .flags = GENL_ADMIN_PERM,
41265714 4804 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4805 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4806 },
4807 {
4808 .cmd = NL80211_CMD_NEW_MPATH,
4809 .doit = nl80211_new_mpath,
4810 .policy = nl80211_policy,
4811 .flags = GENL_ADMIN_PERM,
41265714 4812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4813 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4814 },
4815 {
4816 .cmd = NL80211_CMD_DEL_MPATH,
4817 .doit = nl80211_del_mpath,
4818 .policy = nl80211_policy,
9f1ba906 4819 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4820 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4821 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4822 },
4823 {
4824 .cmd = NL80211_CMD_SET_BSS,
4825 .doit = nl80211_set_bss,
4826 .policy = nl80211_policy,
b2e1b302 4827 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4828 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4829 NL80211_FLAG_NEED_RTNL,
b2e1b302 4830 },
f130347c
LR		 4831 {
4832 .cmd = NL80211_CMD_GET_REG,
4833 .doit = nl80211_get_reg,
4834 .policy = nl80211_policy,
4835 /* can be retrieved by unprivileged users */
4836 },
b2e1b302
LR		 4837 {
4838 .cmd = NL80211_CMD_SET_REG,
4839 .doit = nl80211_set_reg,
4840 .policy = nl80211_policy,
4841 .flags = GENL_ADMIN_PERM,
4842 },
4843 {
4844 .cmd = NL80211_CMD_REQ_SET_REG,
4845 .doit = nl80211_req_set_reg,
4846 .policy = nl80211_policy,
93da9cc1 4847 .flags = GENL_ADMIN_PERM,
4848 },
4849 {
4850 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4851 .doit = nl80211_get_mesh_params,
4852 .policy = nl80211_policy,
4853 /* can be retrieved by unprivileged users */
4c476991
JB		 4854 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4855 NL80211_FLAG_NEED_RTNL,
93da9cc1 4856 },
4857 {
4858 .cmd = NL80211_CMD_SET_MESH_PARAMS,
29cbe68c 4859 .doit = nl80211_update_mesh_params,
93da9cc1 4860 .policy = nl80211_policy,
9aed3cc1 4861 .flags = GENL_ADMIN_PERM,
29cbe68c 4862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4863 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4864 },
2a519311
JB		 4865 {
4866 .cmd = NL80211_CMD_TRIGGER_SCAN,
4867 .doit = nl80211_trigger_scan,
4868 .policy = nl80211_policy,
4869 .flags = GENL_ADMIN_PERM,
41265714 4870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4871 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4872 },
4873 {
4874 .cmd = NL80211_CMD_GET_SCAN,
4875 .policy = nl80211_policy,
4876 .dumpit = nl80211_dump_scan,
4877 },
636a5d36
JM		 4878 {
4879 .cmd = NL80211_CMD_AUTHENTICATE,
4880 .doit = nl80211_authenticate,
4881 .policy = nl80211_policy,
4882 .flags = GENL_ADMIN_PERM,
41265714 4883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4884 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4885 },
4886 {
4887 .cmd = NL80211_CMD_ASSOCIATE,
4888 .doit = nl80211_associate,
4889 .policy = nl80211_policy,
4890 .flags = GENL_ADMIN_PERM,
41265714 4891 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4892 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4893 },
4894 {
4895 .cmd = NL80211_CMD_DEAUTHENTICATE,
4896 .doit = nl80211_deauthenticate,
4897 .policy = nl80211_policy,
4898 .flags = GENL_ADMIN_PERM,
41265714 4899 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4900 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4901 },
4902 {
4903 .cmd = NL80211_CMD_DISASSOCIATE,
4904 .doit = nl80211_disassociate,
4905 .policy = nl80211_policy,
4906 .flags = GENL_ADMIN_PERM,
41265714 4907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4908 NL80211_FLAG_NEED_RTNL,
636a5d36 4909 },
04a773ad
JB		 4910 {
4911 .cmd = NL80211_CMD_JOIN_IBSS,
4912 .doit = nl80211_join_ibss,
4913 .policy = nl80211_policy,
4914 .flags = GENL_ADMIN_PERM,
41265714 4915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4916 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4917 },
4918 {
4919 .cmd = NL80211_CMD_LEAVE_IBSS,
4920 .doit = nl80211_leave_ibss,
4921 .policy = nl80211_policy,
4922 .flags = GENL_ADMIN_PERM,
41265714 4923 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4924 NL80211_FLAG_NEED_RTNL,
04a773ad 4925 },
aff89a9b
JB		 4926#ifdef CONFIG_NL80211_TESTMODE
4927 {
4928 .cmd = NL80211_CMD_TESTMODE,
4929 .doit = nl80211_testmode_do,
4930 .policy = nl80211_policy,
4931 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4932 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4933 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4934 },
4935#endif
b23aa676
SO		 4936 {
4937 .cmd = NL80211_CMD_CONNECT,
4938 .doit = nl80211_connect,
4939 .policy = nl80211_policy,
4940 .flags = GENL_ADMIN_PERM,
41265714 4941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4942 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4943 },
4944 {
4945 .cmd = NL80211_CMD_DISCONNECT,
4946 .doit = nl80211_disconnect,
4947 .policy = nl80211_policy,
4948 .flags = GENL_ADMIN_PERM,
41265714 4949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4950 NL80211_FLAG_NEED_RTNL,
b23aa676 4951 },
463d0183
JB		 4952 {
4953 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4954 .doit = nl80211_wiphy_netns,
4955 .policy = nl80211_policy,
4956 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4957 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4958 NL80211_FLAG_NEED_RTNL,
463d0183 4959 },
61fa713c
HS		 4960 {
4961 .cmd = NL80211_CMD_GET_SURVEY,
4962 .policy = nl80211_policy,
4963 .dumpit = nl80211_dump_survey,
4964 },
67fbb16b
SO		 4965 {
4966 .cmd = NL80211_CMD_SET_PMKSA,
4967 .doit = nl80211_setdel_pmksa,
4968 .policy = nl80211_policy,
4969 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4970 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4971 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4972 },
4973 {
4974 .cmd = NL80211_CMD_DEL_PMKSA,
4975 .doit = nl80211_setdel_pmksa,
4976 .policy = nl80211_policy,
4977 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4978 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4979 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4980 },
4981 {
4982 .cmd = NL80211_CMD_FLUSH_PMKSA,
4983 .doit = nl80211_flush_pmksa,
4984 .policy = nl80211_policy,
4985 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4986 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4987 NL80211_FLAG_NEED_RTNL,
67fbb16b 4988 },
9588bbd5
JM		 4989 {
4990 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4991 .doit = nl80211_remain_on_channel,
4992 .policy = nl80211_policy,
4993 .flags = GENL_ADMIN_PERM,
41265714 4994 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4995 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4996 },
4997 {
4998 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4999 .doit = nl80211_cancel_remain_on_channel,
5000 .policy = nl80211_policy,
5001 .flags = GENL_ADMIN_PERM,
41265714 5002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5003 NL80211_FLAG_NEED_RTNL,
9588bbd5 5004 },
13ae75b1
JM		 5005 {
5006 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5007 .doit = nl80211_set_tx_bitrate_mask,
5008 .policy = nl80211_policy,
5009 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5010 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5011 NL80211_FLAG_NEED_RTNL,
13ae75b1 5012 },
026331c4 5013 {
2e161f78
JB		 5014 .cmd = NL80211_CMD_REGISTER_FRAME,
5015 .doit = nl80211_register_mgmt,
026331c4
JM		 5016 .policy = nl80211_policy,
5017 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5018 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5019 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5020 },
5021 {
2e161f78
JB		 5022 .cmd = NL80211_CMD_FRAME,
5023 .doit = nl80211_tx_mgmt,
026331c4 5024 .policy = nl80211_policy,
f7ca38df
JB		 5025 .flags = GENL_ADMIN_PERM,
5026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5027 NL80211_FLAG_NEED_RTNL,
5028 },
5029 {
5030 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5031 .doit = nl80211_tx_mgmt_cancel_wait,
5032 .policy = nl80211_policy,
026331c4 5033 .flags = GENL_ADMIN_PERM,
41265714 5034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5035 NL80211_FLAG_NEED_RTNL,
026331c4 5036 },
ffb9eb3d
KV		 5037 {
5038 .cmd = NL80211_CMD_SET_POWER_SAVE,
5039 .doit = nl80211_set_power_save,
5040 .policy = nl80211_policy,
5041 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5042 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5043 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5044 },
5045 {
5046 .cmd = NL80211_CMD_GET_POWER_SAVE,
5047 .doit = nl80211_get_power_save,
5048 .policy = nl80211_policy,
5049 /* can be retrieved by unprivileged users */
4c476991
JB		 5050 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5051 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5052 },
d6dc1a38
JO		 5053 {
5054 .cmd = NL80211_CMD_SET_CQM,
5055 .doit = nl80211_set_cqm,
5056 .policy = nl80211_policy,
5057 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5058 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5059 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5060 },
f444de05
JB		 5061 {
5062 .cmd = NL80211_CMD_SET_CHANNEL,
5063 .doit = nl80211_set_channel,
5064 .policy = nl80211_policy,
5065 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5066 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5067 NL80211_FLAG_NEED_RTNL,
f444de05 5068 },
e8347eba
BJ		 5069 {
5070 .cmd = NL80211_CMD_SET_WDS_PEER,
5071 .doit = nl80211_set_wds_peer,
5072 .policy = nl80211_policy,
5073 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5074 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5075 NL80211_FLAG_NEED_RTNL,
e8347eba 5076 },
29cbe68c
JB		 5077 {
5078 .cmd = NL80211_CMD_JOIN_MESH,
5079 .doit = nl80211_join_mesh,
5080 .policy = nl80211_policy,
5081 .flags = GENL_ADMIN_PERM,
5082 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5083 NL80211_FLAG_NEED_RTNL,
5084 },
5085 {
5086 .cmd = NL80211_CMD_LEAVE_MESH,
5087 .doit = nl80211_leave_mesh,
5088 .policy = nl80211_policy,
5089 .flags = GENL_ADMIN_PERM,
5090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5091 NL80211_FLAG_NEED_RTNL,
5092 },
55682965 5093};
9588bbd5 5094
6039f6d2
JM		 5095static struct genl_multicast_group nl80211_mlme_mcgrp = {
5096 .name = "mlme",
5097};
55682965
JB		 5098
5099/* multicast groups */
5100static struct genl_multicast_group nl80211_config_mcgrp = {
5101 .name = "config",
5102};
2a519311
JB		 5103static struct genl_multicast_group nl80211_scan_mcgrp = {
5104 .name = "scan",
5105};
73d54c9e
LR		 5106static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5107 .name = "regulatory",
5108};
55682965
JB		 5109
5110/* notification functions */
5111
5112void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5113{
5114 struct sk_buff *msg;
5115
fd2120ca 5116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5117 if (!msg)
5118 return;
5119
5120 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5121 nlmsg_free(msg);
5122 return;
5123 }
5124
463d0183
JB		 5125 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5126 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5127}
5128
362a415d
JB		 5129static int nl80211_add_scan_req(struct sk_buff *msg,
5130 struct cfg80211_registered_device *rdev)
5131{
5132 struct cfg80211_scan_request *req = rdev->scan_req;
5133 struct nlattr *nest;
5134 int i;
5135
667503dd
JB		 5136 ASSERT_RDEV_LOCK(rdev);
5137
362a415d
JB		 5138 if (WARN_ON(!req))
5139 return 0;
5140
5141 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5142 if (!nest)
5143 goto nla_put_failure;
5144 for (i = 0; i < req->n_ssids; i++)
5145 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5146 nla_nest_end(msg, nest);
5147
5148 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5149 if (!nest)
5150 goto nla_put_failure;
5151 for (i = 0; i < req->n_channels; i++)
5152 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5153 nla_nest_end(msg, nest);
5154
5155 if (req->ie)
5156 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5157
5158 return 0;
5159 nla_put_failure:
5160 return -ENOBUFS;
5161}
5162
a538e2d5
JB		 5163static int nl80211_send_scan_msg(struct sk_buff *msg,
5164 struct cfg80211_registered_device *rdev,
5165 struct net_device *netdev,
5166 u32 pid, u32 seq, int flags,
5167 u32 cmd)
2a519311
JB		 5168{
5169 void *hdr;
5170
5171 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5172 if (!hdr)
5173 return -1;
5174
b5850a7a 5175 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5177
362a415d
JB		 5178 /* ignore errors and send incomplete event anyway */
5179 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5180
5181 return genlmsg_end(msg, hdr);
5182
5183 nla_put_failure:
5184 genlmsg_cancel(msg, hdr);
5185 return -EMSGSIZE;
5186}
5187
a538e2d5
JB		 5188void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5189 struct net_device *netdev)
5190{
5191 struct sk_buff *msg;
5192
5193 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5194 if (!msg)
5195 return;
5196
5197 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5198 NL80211_CMD_TRIGGER_SCAN) < 0) {
5199 nlmsg_free(msg);
5200 return;
5201 }
5202
463d0183
JB		 5203 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5204 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5205}
5206
2a519311
JB		 5207void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5208 struct net_device *netdev)
5209{
5210 struct sk_buff *msg;
5211
fd2120ca 5212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5213 if (!msg)
5214 return;
5215
a538e2d5
JB		 5216 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5217 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5218 nlmsg_free(msg);
5219 return;
5220 }
5221
463d0183
JB		 5222 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5223 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5224}
5225
5226void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5227 struct net_device *netdev)
5228{
5229 struct sk_buff *msg;
5230
fd2120ca 5231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5232 if (!msg)
5233 return;
5234
a538e2d5
JB		 5235 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5236 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5237 nlmsg_free(msg);
5238 return;
5239 }
5240
463d0183
JB		 5241 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5242 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5243}
5244
73d54c9e
LR		 5245/*
5246 * This can happen on global regulatory changes or device specific settings
5247 * based on custom world regulatory domains.
5248 */
5249void nl80211_send_reg_change_event(struct regulatory_request *request)
5250{
5251 struct sk_buff *msg;
5252 void *hdr;
5253
fd2120ca 5254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5255 if (!msg)
5256 return;
5257
5258 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5259 if (!hdr) {
5260 nlmsg_free(msg);
5261 return;
5262 }
5263
5264 /* Userspace can always count this one always being set */
5265 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5266
5267 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5268 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5269 NL80211_REGDOM_TYPE_WORLD);
5270 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5271 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5272 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5273 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5274 request->intersect)
5275 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5276 NL80211_REGDOM_TYPE_INTERSECTION);
5277 else {
5278 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5279 NL80211_REGDOM_TYPE_COUNTRY);
5280 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5281 }
5282
5283 if (wiphy_idx_valid(request->wiphy_idx))
5284 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5285
5286 if (genlmsg_end(msg, hdr) < 0) {
5287 nlmsg_free(msg);
5288 return;
5289 }
5290
bc43b28c 5291 rcu_read_lock();
463d0183 5292 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5293 GFP_ATOMIC);
5294 rcu_read_unlock();
73d54c9e
LR		 5295
5296 return;
5297
5298nla_put_failure:
5299 genlmsg_cancel(msg, hdr);
5300 nlmsg_free(msg);
5301}
5302
6039f6d2
JM		 5303static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5304 struct net_device *netdev,
5305 const u8 *buf, size_t len,
e6d6e342 5306 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5307{
5308 struct sk_buff *msg;
5309 void *hdr;
5310
e6d6e342 5311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5312 if (!msg)
5313 return;
5314
5315 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5316 if (!hdr) {
5317 nlmsg_free(msg);
5318 return;
5319 }
5320
5321 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5322 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5323 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5324
5325 if (genlmsg_end(msg, hdr) < 0) {
5326 nlmsg_free(msg);
5327 return;
5328 }
5329
463d0183
JB		 5330 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5331 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5332 return;
5333
5334 nla_put_failure:
5335 genlmsg_cancel(msg, hdr);
5336 nlmsg_free(msg);
5337}
5338
5339void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5340 struct net_device *netdev, const u8 *buf,
5341 size_t len, gfp_t gfp)
6039f6d2
JM		 5342{
5343 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5344 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5345}
5346
5347void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5348 struct net_device *netdev, const u8 *buf,
e6d6e342 5349 size_t len, gfp_t gfp)
6039f6d2 5350{
e6d6e342
JB		 5351 nl80211_send_mlme_event(rdev, netdev, buf, len,
5352 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5353}
5354
53b46b84 5355void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5356 struct net_device *netdev, const u8 *buf,
5357 size_t len, gfp_t gfp)
6039f6d2
JM		 5358{
5359 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5360 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5361}
5362
53b46b84
JM		 5363void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5364 struct net_device *netdev, const u8 *buf,
e6d6e342 5365 size_t len, gfp_t gfp)
6039f6d2
JM		 5366{
5367 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5368 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5369}
5370
1b06bb40
LR		 5371static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5372 struct net_device *netdev, int cmd,
e6d6e342 5373 const u8 *addr, gfp_t gfp)
1965c853
JM		 5374{
5375 struct sk_buff *msg;
5376 void *hdr;
5377
e6d6e342 5378 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5379 if (!msg)
5380 return;
5381
5382 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5383 if (!hdr) {
5384 nlmsg_free(msg);
5385 return;
5386 }
5387
5388 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5390 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5391 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5392
5393 if (genlmsg_end(msg, hdr) < 0) {
5394 nlmsg_free(msg);
5395 return;
5396 }
5397
463d0183
JB		 5398 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5399 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5400 return;
5401
5402 nla_put_failure:
5403 genlmsg_cancel(msg, hdr);
5404 nlmsg_free(msg);
5405}
5406
5407void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5408 struct net_device *netdev, const u8 *addr,
5409 gfp_t gfp)
1965c853
JM		 5410{
5411 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5412 addr, gfp);
1965c853
JM		 5413}
5414
5415void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5416 struct net_device *netdev, const u8 *addr,
5417 gfp_t gfp)
1965c853 5418{
e6d6e342
JB		 5419 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5420 addr, gfp);
1965c853
JM		 5421}
5422
b23aa676
SO		 5423void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5424 struct net_device *netdev, const u8 *bssid,
5425 const u8 *req_ie, size_t req_ie_len,
5426 const u8 *resp_ie, size_t resp_ie_len,
5427 u16 status, gfp_t gfp)
5428{
5429 struct sk_buff *msg;
5430 void *hdr;
5431
5432 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5433 if (!msg)
5434 return;
5435
5436 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5437 if (!hdr) {
5438 nlmsg_free(msg);
5439 return;
5440 }
5441
5442 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5443 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5444 if (bssid)
5445 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5446 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5447 if (req_ie)
5448 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5449 if (resp_ie)
5450 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5451
5452 if (genlmsg_end(msg, hdr) < 0) {
5453 nlmsg_free(msg);
5454 return;
5455 }
5456
463d0183
JB		 5457 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5458 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5459 return;
5460
5461 nla_put_failure:
5462 genlmsg_cancel(msg, hdr);
5463 nlmsg_free(msg);
5464
5465}
5466
5467void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5468 struct net_device *netdev, const u8 *bssid,
5469 const u8 *req_ie, size_t req_ie_len,
5470 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5471{
5472 struct sk_buff *msg;
5473 void *hdr;
5474
5475 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5476 if (!msg)
5477 return;
5478
5479 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5480 if (!hdr) {
5481 nlmsg_free(msg);
5482 return;
5483 }
5484
5485 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5486 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5487 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5488 if (req_ie)
5489 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5490 if (resp_ie)
5491 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5492
5493 if (genlmsg_end(msg, hdr) < 0) {
5494 nlmsg_free(msg);
5495 return;
5496 }
5497
463d0183
JB		 5498 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5499 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5500 return;
5501
5502 nla_put_failure:
5503 genlmsg_cancel(msg, hdr);
5504 nlmsg_free(msg);
5505
5506}
5507
5508void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5509 struct net_device *netdev, u16 reason,
667503dd 5510 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5511{
5512 struct sk_buff *msg;
5513 void *hdr;
5514
667503dd 5515 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5516 if (!msg)
5517 return;
5518
5519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5520 if (!hdr) {
5521 nlmsg_free(msg);
5522 return;
5523 }
5524
5525 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5526 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5527 if (from_ap && reason)
5528 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5529 if (from_ap)
5530 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5531 if (ie)
5532 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5533
5534 if (genlmsg_end(msg, hdr) < 0) {
5535 nlmsg_free(msg);
5536 return;
5537 }
5538
463d0183
JB		 5539 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5540 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5541 return;
5542
5543 nla_put_failure:
5544 genlmsg_cancel(msg, hdr);
5545 nlmsg_free(msg);
5546
5547}
5548
04a773ad
JB		 5549void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5550 struct net_device *netdev, const u8 *bssid,
5551 gfp_t gfp)
5552{
5553 struct sk_buff *msg;
5554 void *hdr;
5555
fd2120ca 5556 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5557 if (!msg)
5558 return;
5559
5560 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5561 if (!hdr) {
5562 nlmsg_free(msg);
5563 return;
5564 }
5565
5566 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5567 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5568 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5569
5570 if (genlmsg_end(msg, hdr) < 0) {
5571 nlmsg_free(msg);
5572 return;
5573 }
5574
463d0183
JB		 5575 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5576 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5577 return;
5578
5579 nla_put_failure:
5580 genlmsg_cancel(msg, hdr);
5581 nlmsg_free(msg);
5582}
5583
a3b8b056
JM		 5584void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5585 struct net_device *netdev, const u8 *addr,
5586 enum nl80211_key_type key_type, int key_id,
e6d6e342 5587 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5588{
5589 struct sk_buff *msg;
5590 void *hdr;
5591
e6d6e342 5592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5593 if (!msg)
5594 return;
5595
5596 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5597 if (!hdr) {
5598 nlmsg_free(msg);
5599 return;
5600 }
5601
5602 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5603 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5604 if (addr)
5605 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5606 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5607 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5608 if (tsc)
5609 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5610
5611 if (genlmsg_end(msg, hdr) < 0) {
5612 nlmsg_free(msg);
5613 return;
5614 }
5615
463d0183
JB		 5616 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5617 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5618 return;
5619
5620 nla_put_failure:
5621 genlmsg_cancel(msg, hdr);
5622 nlmsg_free(msg);
5623}
5624
6bad8766
LR		 5625void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5626 struct ieee80211_channel *channel_before,
5627 struct ieee80211_channel *channel_after)
5628{
5629 struct sk_buff *msg;
5630 void *hdr;
5631 struct nlattr *nl_freq;
5632
fd2120ca 5633 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5634 if (!msg)
5635 return;
5636
5637 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5638 if (!hdr) {
5639 nlmsg_free(msg);
5640 return;
5641 }
5642
5643 /*
5644 * Since we are applying the beacon hint to a wiphy we know its
5645 * wiphy_idx is valid
5646 */
5647 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5648
5649 /* Before */
5650 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5651 if (!nl_freq)
5652 goto nla_put_failure;
5653 if (nl80211_msg_put_channel(msg, channel_before))
5654 goto nla_put_failure;
5655 nla_nest_end(msg, nl_freq);
5656
5657 /* After */
5658 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5659 if (!nl_freq)
5660 goto nla_put_failure;
5661 if (nl80211_msg_put_channel(msg, channel_after))
5662 goto nla_put_failure;
5663 nla_nest_end(msg, nl_freq);
5664
5665 if (genlmsg_end(msg, hdr) < 0) {
5666 nlmsg_free(msg);
5667 return;
5668 }
5669
463d0183
JB		 5670 rcu_read_lock();
5671 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5672 GFP_ATOMIC);
5673 rcu_read_unlock();
6bad8766
LR		 5674
5675 return;
5676
5677nla_put_failure:
5678 genlmsg_cancel(msg, hdr);
5679 nlmsg_free(msg);
5680}
5681
9588bbd5
JM		 5682static void nl80211_send_remain_on_chan_event(
5683 int cmd, struct cfg80211_registered_device *rdev,
5684 struct net_device *netdev, u64 cookie,
5685 struct ieee80211_channel *chan,
5686 enum nl80211_channel_type channel_type,
5687 unsigned int duration, gfp_t gfp)
5688{
5689 struct sk_buff *msg;
5690 void *hdr;
5691
5692 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5693 if (!msg)
5694 return;
5695
5696 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5697 if (!hdr) {
5698 nlmsg_free(msg);
5699 return;
5700 }
5701
5702 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5703 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5704 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5706 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5707
5708 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5709 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5710
5711 if (genlmsg_end(msg, hdr) < 0) {
5712 nlmsg_free(msg);
5713 return;
5714 }
5715
5716 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5717 nl80211_mlme_mcgrp.id, gfp);
5718 return;
5719
5720 nla_put_failure:
5721 genlmsg_cancel(msg, hdr);
5722 nlmsg_free(msg);
5723}
5724
5725void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5726 struct net_device *netdev, u64 cookie,
5727 struct ieee80211_channel *chan,
5728 enum nl80211_channel_type channel_type,
5729 unsigned int duration, gfp_t gfp)
5730{
5731 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5732 rdev, netdev, cookie, chan,
5733 channel_type, duration, gfp);
5734}
5735
5736void nl80211_send_remain_on_channel_cancel(
5737 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5738 u64 cookie, struct ieee80211_channel *chan,
5739 enum nl80211_channel_type channel_type, gfp_t gfp)
5740{
5741 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5742 rdev, netdev, cookie, chan,
5743 channel_type, 0, gfp);
5744}
5745
98b62183
JB		 5746void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5747 struct net_device *dev, const u8 *mac_addr,
5748 struct station_info *sinfo, gfp_t gfp)
5749{
5750 struct sk_buff *msg;
5751
5752 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5753 if (!msg)
5754 return;
5755
5756 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5757 nlmsg_free(msg);
5758 return;
5759 }
5760
5761 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5762 nl80211_mlme_mcgrp.id, gfp);
5763}
5764
2e161f78
JB		 5765int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5766 struct net_device *netdev, u32 nlpid,
5767 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5768{
5769 struct sk_buff *msg;
5770 void *hdr;
5771 int err;
5772
5773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5774 if (!msg)
5775 return -ENOMEM;
5776
2e161f78 5777 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5778 if (!hdr) {
5779 nlmsg_free(msg);
5780 return -ENOMEM;
5781 }
5782
5783 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5784 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5785 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5786 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5787
5788 err = genlmsg_end(msg, hdr);
5789 if (err < 0) {
5790 nlmsg_free(msg);
5791 return err;
5792 }
5793
5794 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5795 if (err < 0)
5796 return err;
5797 return 0;
5798
5799 nla_put_failure:
5800 genlmsg_cancel(msg, hdr);
5801 nlmsg_free(msg);
5802 return -ENOBUFS;
5803}
5804
2e161f78
JB		 5805void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5806 struct net_device *netdev, u64 cookie,
5807 const u8 *buf, size_t len, bool ack,
5808 gfp_t gfp)
026331c4
JM		 5809{
5810 struct sk_buff *msg;
5811 void *hdr;
5812
5813 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5814 if (!msg)
5815 return;
5816
2e161f78 5817 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5818 if (!hdr) {
5819 nlmsg_free(msg);
5820 return;
5821 }
5822
5823 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5824 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5825 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5826 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5827 if (ack)
5828 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5829
5830 if (genlmsg_end(msg, hdr) < 0) {
5831 nlmsg_free(msg);
5832 return;
5833 }
5834
5835 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5836 return;
5837
5838 nla_put_failure:
5839 genlmsg_cancel(msg, hdr);
5840 nlmsg_free(msg);
5841}
5842
d6dc1a38
JO		 5843void
5844nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5845 struct net_device *netdev,
5846 enum nl80211_cqm_rssi_threshold_event rssi_event,
5847 gfp_t gfp)
5848{
5849 struct sk_buff *msg;
5850 struct nlattr *pinfoattr;
5851 void *hdr;
5852
5853 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5854 if (!msg)
5855 return;
5856
5857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5858 if (!hdr) {
5859 nlmsg_free(msg);
5860 return;
5861 }
5862
5863 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5864 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5865
5866 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5867 if (!pinfoattr)
5868 goto nla_put_failure;
5869
5870 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5871 rssi_event);
5872
5873 nla_nest_end(msg, pinfoattr);
5874
5875 if (genlmsg_end(msg, hdr) < 0) {
5876 nlmsg_free(msg);
5877 return;
5878 }
5879
5880 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5881 nl80211_mlme_mcgrp.id, gfp);
5882 return;
5883
5884 nla_put_failure:
5885 genlmsg_cancel(msg, hdr);
5886 nlmsg_free(msg);
5887}
5888
c063dbf5
JB		 5889void
5890nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5891 struct net_device *netdev, const u8 *peer,
5892 u32 num_packets, gfp_t gfp)
5893{
5894 struct sk_buff *msg;
5895 struct nlattr *pinfoattr;
5896 void *hdr;
5897
5898 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5899 if (!msg)
5900 return;
5901
5902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5903 if (!hdr) {
5904 nlmsg_free(msg);
5905 return;
5906 }
5907
5908 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5909 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5910 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5911
5912 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5913 if (!pinfoattr)
5914 goto nla_put_failure;
5915
5916 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5917
5918 nla_nest_end(msg, pinfoattr);
5919
5920 if (genlmsg_end(msg, hdr) < 0) {
5921 nlmsg_free(msg);
5922 return;
5923 }
5924
5925 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5926 nl80211_mlme_mcgrp.id, gfp);
5927 return;
5928
5929 nla_put_failure:
5930 genlmsg_cancel(msg, hdr);
5931 nlmsg_free(msg);
5932}
5933
026331c4
JM		 5934static int nl80211_netlink_notify(struct notifier_block * nb,
5935 unsigned long state,
5936 void *_notify)
5937{
5938 struct netlink_notify *notify = _notify;
5939 struct cfg80211_registered_device *rdev;
5940 struct wireless_dev *wdev;
5941
5942 if (state != NETLINK_URELEASE)
5943 return NOTIFY_DONE;
5944
5945 rcu_read_lock();
5946
5947 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5948 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5949 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5950
5951 rcu_read_unlock();
5952
5953 return NOTIFY_DONE;
5954}
5955
5956static struct notifier_block nl80211_netlink_notifier = {
5957 .notifier_call = nl80211_netlink_notify,
5958};
5959
55682965
JB		 5960/* initialisation/exit functions */
5961
5962int nl80211_init(void)
5963{
0d63cbb5 5964 int err;
55682965 5965
0d63cbb5
MM		 5966 err = genl_register_family_with_ops(&nl80211_fam,
5967 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5968 if (err)
5969 return err;
5970
55682965
JB		 5971 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5972 if (err)
5973 goto err_out;
5974
2a519311
JB		 5975 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5976 if (err)
5977 goto err_out;
5978
73d54c9e
LR		 5979 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5980 if (err)
5981 goto err_out;
5982
6039f6d2
JM		 5983 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5984 if (err)
5985 goto err_out;
5986
aff89a9b
JB		 5987#ifdef CONFIG_NL80211_TESTMODE
5988 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5989 if (err)
5990 goto err_out;
5991#endif
5992
026331c4
JM		 5993 err = netlink_register_notifier(&nl80211_netlink_notifier);
5994 if (err)
5995 goto err_out;
5996
55682965
JB		 5997 return 0;
5998 err_out:
5999 genl_unregister_family(&nl80211_fam);
6000 return err;
6001}
6002
6003void nl80211_exit(void)
6004{
026331c4 6005 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6006 genl_unregister_family(&nl80211_fam);
6007}
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