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cfg80211: require add_virtual_intf to return new dev
[mirror_ubuntu-focal-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
36aedc90 124
93da9cc1 125 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
126
36aedc90
JM		 127 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
128 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 129
130 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
131 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
132 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 133 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
134 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 135
136 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
137 .len = IEEE80211_MAX_SSID_LEN },
138 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
139 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 140 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 141 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 142 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 143 [NL80211_ATTR_STA_FLAGS2] = {
144 .len = sizeof(struct nl80211_sta_flag_update),
145 },
3f77316c 146 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 147 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
148 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 149 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
150 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
151 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 152 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 153 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 154 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
155 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 156 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
157 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 158 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 159 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
160 .len = IEEE80211_MAX_DATA_LEN },
161 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 162 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 163 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 164 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 165 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 166 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
167 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 168 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 169 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
170 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 171 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 172 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
55682965
JB		 173};
174
e31b8213 175/* policy for the key attributes */
b54452b0 176static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 177 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 178 [NL80211_KEY_IDX] = { .type = NLA_U8 },
179 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
180 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
181 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
182 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 183 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
b9454e83
JB		 184};
185
a043897a
HS		 186/* ifidx get helper */
187static int nl80211_get_ifidx(struct netlink_callback *cb)
188{
189 int res;
190
191 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
192 nl80211_fam.attrbuf, nl80211_fam.maxattr,
193 nl80211_policy);
194 if (res)
195 return res;
196
197 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
198 return -EINVAL;
199
200 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
201 if (!res)
202 return -EINVAL;
203 return res;
204}
205
67748893
JB		 206static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
207 struct netlink_callback *cb,
208 struct cfg80211_registered_device **rdev,
209 struct net_device **dev)
210{
211 int ifidx = cb->args[0];
212 int err;
213
214 if (!ifidx)
215 ifidx = nl80211_get_ifidx(cb);
216 if (ifidx < 0)
217 return ifidx;
218
219 cb->args[0] = ifidx;
220
221 rtnl_lock();
222
223 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
224 if (!*dev) {
225 err = -ENODEV;
226 goto out_rtnl;
227 }
228
229 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 230 if (IS_ERR(*rdev)) {
231 err = PTR_ERR(*rdev);
67748893
JB		 232 goto out_rtnl;
233 }
234
235 return 0;
236 out_rtnl:
237 rtnl_unlock();
238 return err;
239}
240
241static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
242{
243 cfg80211_unlock_rdev(rdev);
244 rtnl_unlock();
245}
246
f4a11bb0
JB		 247/* IE validation */
248static bool is_valid_ie_attr(const struct nlattr *attr)
249{
250 const u8 *pos;
251 int len;
252
253 if (!attr)
254 return true;
255
256 pos = nla_data(attr);
257 len = nla_len(attr);
258
259 while (len) {
260 u8 elemlen;
261
262 if (len < 2)
263 return false;
264 len -= 2;
265
266 elemlen = pos[1];
267 if (elemlen > len)
268 return false;
269
270 len -= elemlen;
271 pos += 2 + elemlen;
272 }
273
274 return true;
275}
276
55682965
JB		 277/* message building helper */
278static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
279 int flags, u8 cmd)
280{
281 /* since there is no private header just add the generic one */
282 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
283}
284
5dab3b8a
LR		 285static int nl80211_msg_put_channel(struct sk_buff *msg,
286 struct ieee80211_channel *chan)
287{
288 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
289 chan->center_freq);
290
291 if (chan->flags & IEEE80211_CHAN_DISABLED)
292 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
293 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
294 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
295 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
296 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
297 if (chan->flags & IEEE80211_CHAN_RADAR)
298 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
299
300 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
301 DBM_TO_MBM(chan->max_power));
302
303 return 0;
304
305 nla_put_failure:
306 return -ENOBUFS;
307}
308
55682965
JB		 309/* netlink command implementations */
310
b9454e83
JB		 311struct key_parse {
312 struct key_params p;
313 int idx;
e31b8213 314 int type;
b9454e83
JB		 315 bool def, defmgmt;
316};
317
318static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
319{
320 struct nlattr *tb[NL80211_KEY_MAX + 1];
321 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
322 nl80211_key_policy);
323 if (err)
324 return err;
325
326 k->def = !!tb[NL80211_KEY_DEFAULT];
327 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
328
329 if (tb[NL80211_KEY_IDX])
330 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
331
332 if (tb[NL80211_KEY_DATA]) {
333 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
334 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
335 }
336
337 if (tb[NL80211_KEY_SEQ]) {
338 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
339 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
340 }
341
342 if (tb[NL80211_KEY_CIPHER])
343 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
344
e31b8213
JB		 345 if (tb[NL80211_KEY_TYPE]) {
346 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
347 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
348 return -EINVAL;
349 }
350
b9454e83
JB		 351 return 0;
352}
353
354static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
355{
356 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
357 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
358 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
359 }
360
361 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
362 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
363 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
364 }
365
366 if (info->attrs[NL80211_ATTR_KEY_IDX])
367 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
368
369 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
370 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
371
372 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
373 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
374
e31b8213
JB		 375 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
376 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
377 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
378 return -EINVAL;
379 }
380
b9454e83
JB		 381 return 0;
382}
383
384static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
385{
386 int err;
387
388 memset(k, 0, sizeof(*k));
389 k->idx = -1;
e31b8213 390 k->type = -1;
b9454e83
JB		 391
392 if (info->attrs[NL80211_ATTR_KEY])
393 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
394 else
395 err = nl80211_parse_key_old(info, k);
396
397 if (err)
398 return err;
399
400 if (k->def && k->defmgmt)
401 return -EINVAL;
402
403 if (k->idx != -1) {
404 if (k->defmgmt) {
405 if (k->idx < 4 || k->idx > 5)
406 return -EINVAL;
407 } else if (k->def) {
408 if (k->idx < 0 || k->idx > 3)
409 return -EINVAL;
410 } else {
411 if (k->idx < 0 || k->idx > 5)
412 return -EINVAL;
413 }
414 }
415
416 return 0;
417}
418
fffd0934
JB		 419static struct cfg80211_cached_keys *
420nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
421 struct nlattr *keys)
422{
423 struct key_parse parse;
424 struct nlattr *key;
425 struct cfg80211_cached_keys *result;
426 int rem, err, def = 0;
427
428 result = kzalloc(sizeof(*result), GFP_KERNEL);
429 if (!result)
430 return ERR_PTR(-ENOMEM);
431
432 result->def = -1;
433 result->defmgmt = -1;
434
435 nla_for_each_nested(key, keys, rem) {
436 memset(&parse, 0, sizeof(parse));
437 parse.idx = -1;
438
439 err = nl80211_parse_key_new(key, &parse);
440 if (err)
441 goto error;
442 err = -EINVAL;
443 if (!parse.p.key)
444 goto error;
445 if (parse.idx < 0 || parse.idx > 4)
446 goto error;
447 if (parse.def) {
448 if (def)
449 goto error;
450 def = 1;
451 result->def = parse.idx;
452 } else if (parse.defmgmt)
453 goto error;
454 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 455 parse.idx, false, NULL);
fffd0934
JB		 456 if (err)
457 goto error;
458 result->params[parse.idx].cipher = parse.p.cipher;
459 result->params[parse.idx].key_len = parse.p.key_len;
460 result->params[parse.idx].key = result->data[parse.idx];
461 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
462 }
463
464 return result;
465 error:
466 kfree(result);
467 return ERR_PTR(err);
468}
469
470static int nl80211_key_allowed(struct wireless_dev *wdev)
471{
472 ASSERT_WDEV_LOCK(wdev);
473
fffd0934
JB		 474 switch (wdev->iftype) {
475 case NL80211_IFTYPE_AP:
476 case NL80211_IFTYPE_AP_VLAN:
074ac8df 477 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 478 break;
479 case NL80211_IFTYPE_ADHOC:
480 if (!wdev->current_bss)
481 return -ENOLINK;
482 break;
483 case NL80211_IFTYPE_STATION:
074ac8df 484 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 485 if (wdev->sme_state != CFG80211_SME_CONNECTED)
486 return -ENOLINK;
487 break;
488 default:
489 return -EINVAL;
490 }
491
492 return 0;
493}
494
55682965
JB		 495static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
496 struct cfg80211_registered_device *dev)
497{
498 void *hdr;
ee688b00
JB		 499 struct nlattr *nl_bands, *nl_band;
500 struct nlattr *nl_freqs, *nl_freq;
501 struct nlattr *nl_rates, *nl_rate;
f59ac048 502 struct nlattr *nl_modes;
8fdc621d 503 struct nlattr *nl_cmds;
ee688b00
JB		 504 enum ieee80211_band band;
505 struct ieee80211_channel *chan;
506 struct ieee80211_rate *rate;
507 int i;
f59ac048 508 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 509 const struct ieee80211_txrx_stypes *mgmt_stypes =
510 dev->wiphy.mgmt_stypes;
55682965
JB		 511
512 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
513 if (!hdr)
514 return -1;
515
b5850a7a 516 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 517 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 518
f5ea9120
JB		 519 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
520 cfg80211_rdev_list_generation);
521
b9a5f8ca
JM		 522 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
523 dev->wiphy.retry_short);
524 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
525 dev->wiphy.retry_long);
526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
527 dev->wiphy.frag_threshold);
528 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
529 dev->wiphy.rts_threshold);
81077e82
LT		 530 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
531 dev->wiphy.coverage_class);
2a519311
JB		 532 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
533 dev->wiphy.max_scan_ssids);
18a83659
JB		 534 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
535 dev->wiphy.max_scan_ie_len);
ee688b00 536
e31b8213
JB		 537 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
538 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
539
25e47c18
JB		 540 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
541 sizeof(u32) * dev->wiphy.n_cipher_suites,
542 dev->wiphy.cipher_suites);
543
67fbb16b
SO		 544 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
545 dev->wiphy.max_num_pmkids);
546
c0692b8f
JB		 547 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
548 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
549
afe0cbf8
BR		 550 if (dev->ops->get_antenna) {
551 u32 tx_ant = 0, rx_ant = 0;
552 int res;
553 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
554 if (!res) {
555 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
557 }
558 }
559
f59ac048
LR		 560 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
561 if (!nl_modes)
562 goto nla_put_failure;
563
564 i = 0;
565 while (ifmodes) {
566 if (ifmodes & 1)
567 NLA_PUT_FLAG(msg, i);
568 ifmodes >>= 1;
569 i++;
570 }
571
572 nla_nest_end(msg, nl_modes);
573
ee688b00
JB		 574 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
575 if (!nl_bands)
576 goto nla_put_failure;
577
578 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
579 if (!dev->wiphy.bands[band])
580 continue;
581
582 nl_band = nla_nest_start(msg, band);
583 if (!nl_band)
584 goto nla_put_failure;
585
d51626df
JB		 586 /* add HT info */
587 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
588 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
589 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
590 &dev->wiphy.bands[band]->ht_cap.mcs);
591 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
592 dev->wiphy.bands[band]->ht_cap.cap);
593 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
594 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
595 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
596 dev->wiphy.bands[band]->ht_cap.ampdu_density);
597 }
598
ee688b00
JB		 599 /* add frequencies */
600 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
601 if (!nl_freqs)
602 goto nla_put_failure;
603
604 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
605 nl_freq = nla_nest_start(msg, i);
606 if (!nl_freq)
607 goto nla_put_failure;
608
609 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 610
611 if (nl80211_msg_put_channel(msg, chan))
612 goto nla_put_failure;
e2f367f2 613
ee688b00
JB		 614 nla_nest_end(msg, nl_freq);
615 }
616
617 nla_nest_end(msg, nl_freqs);
618
619 /* add bitrates */
620 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
621 if (!nl_rates)
622 goto nla_put_failure;
623
624 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
625 nl_rate = nla_nest_start(msg, i);
626 if (!nl_rate)
627 goto nla_put_failure;
628
629 rate = &dev->wiphy.bands[band]->bitrates[i];
630 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
631 rate->bitrate);
632 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
633 NLA_PUT_FLAG(msg,
634 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
635
636 nla_nest_end(msg, nl_rate);
637 }
638
639 nla_nest_end(msg, nl_rates);
640
641 nla_nest_end(msg, nl_band);
642 }
643 nla_nest_end(msg, nl_bands);
644
8fdc621d
JB		 645 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
646 if (!nl_cmds)
647 goto nla_put_failure;
648
649 i = 0;
650#define CMD(op, n) \
651 do { \
652 if (dev->ops->op) { \
653 i++; \
654 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
655 } \
656 } while (0)
657
658 CMD(add_virtual_intf, NEW_INTERFACE);
659 CMD(change_virtual_intf, SET_INTERFACE);
660 CMD(add_key, NEW_KEY);
661 CMD(add_beacon, NEW_BEACON);
662 CMD(add_station, NEW_STATION);
663 CMD(add_mpath, NEW_MPATH);
664 CMD(set_mesh_params, SET_MESH_PARAMS);
665 CMD(change_bss, SET_BSS);
636a5d36
JM		 666 CMD(auth, AUTHENTICATE);
667 CMD(assoc, ASSOCIATE);
668 CMD(deauth, DEAUTHENTICATE);
669 CMD(disassoc, DISASSOCIATE);
04a773ad 670 CMD(join_ibss, JOIN_IBSS);
67fbb16b
SO		 671 CMD(set_pmksa, SET_PMKSA);
672 CMD(del_pmksa, DEL_PMKSA);
673 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 674 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 675 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 676 CMD(mgmt_tx, FRAME);
f7ca38df 677 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 678 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 679 i++;
680 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
681 }
f444de05 682 CMD(set_channel, SET_CHANNEL);
e8347eba 683 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 684
685#undef CMD
b23aa676 686
6829c878 687 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 688 i++;
689 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
690 }
691
6829c878 692 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 693 i++;
694 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
695 }
696
8fdc621d
JB		 697 nla_nest_end(msg, nl_cmds);
698
f7ca38df
JB		 699 /* for now at least assume all drivers have it */
700 if (dev->ops->mgmt_tx)
701 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
702
2e161f78
JB		 703 if (mgmt_stypes) {
704 u16 stypes;
705 struct nlattr *nl_ftypes, *nl_ifs;
706 enum nl80211_iftype ift;
707
708 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
709 if (!nl_ifs)
710 goto nla_put_failure;
711
712 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
713 nl_ftypes = nla_nest_start(msg, ift);
714 if (!nl_ftypes)
715 goto nla_put_failure;
716 i = 0;
717 stypes = mgmt_stypes[ift].tx;
718 while (stypes) {
719 if (stypes & 1)
720 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
721 (i << 4) | IEEE80211_FTYPE_MGMT);
722 stypes >>= 1;
723 i++;
724 }
725 nla_nest_end(msg, nl_ftypes);
726 }
727
74b70a4e
JB		 728 nla_nest_end(msg, nl_ifs);
729
2e161f78
JB		 730 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
731 if (!nl_ifs)
732 goto nla_put_failure;
733
734 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
735 nl_ftypes = nla_nest_start(msg, ift);
736 if (!nl_ftypes)
737 goto nla_put_failure;
738 i = 0;
739 stypes = mgmt_stypes[ift].rx;
740 while (stypes) {
741 if (stypes & 1)
742 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
743 (i << 4) | IEEE80211_FTYPE_MGMT);
744 stypes >>= 1;
745 i++;
746 }
747 nla_nest_end(msg, nl_ftypes);
748 }
749 nla_nest_end(msg, nl_ifs);
750 }
751
55682965
JB		 752 return genlmsg_end(msg, hdr);
753
754 nla_put_failure:
bc3ed28c
TG		 755 genlmsg_cancel(msg, hdr);
756 return -EMSGSIZE;
55682965
JB		 757}
758
759static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
760{
761 int idx = 0;
762 int start = cb->args[0];
763 struct cfg80211_registered_device *dev;
764
a1794390 765 mutex_lock(&cfg80211_mutex);
79c97e97 766 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 767 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
768 continue;
b4637271 769 if (++idx <= start)
55682965
JB		 770 continue;
771 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
772 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 773 dev) < 0) {
774 idx--;
55682965 775 break;
b4637271 776 }
55682965 777 }
a1794390 778 mutex_unlock(&cfg80211_mutex);
55682965
JB		 779
780 cb->args[0] = idx;
781
782 return skb->len;
783}
784
785static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
786{
787 struct sk_buff *msg;
4c476991 788 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 789
fd2120ca 790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 791 if (!msg)
4c476991 792 return -ENOMEM;
55682965 793
4c476991
JB		 794 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
795 nlmsg_free(msg);
796 return -ENOBUFS;
797 }
55682965 798
134e6375 799 return genlmsg_reply(msg, info);
55682965
JB		 800}
801
31888487
JM		 802static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
803 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
804 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
805 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
806 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
807 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
808};
809
810static int parse_txq_params(struct nlattr *tb[],
811 struct ieee80211_txq_params *txq_params)
812{
813 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
814 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
815 !tb[NL80211_TXQ_ATTR_AIFS])
816 return -EINVAL;
817
818 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
819 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
820 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
821 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
822 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
823
824 return 0;
825}
826
f444de05
JB		 827static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
828{
829 /*
830 * You can only set the channel explicitly for AP, mesh
831 * and WDS type interfaces; all others have their channel
832 * managed via their respective "establish a connection"
833 * command (connect, join, ...)
834 *
835 * Monitors are special as they are normally slaved to
836 * whatever else is going on, so they behave as though
837 * you tried setting the wiphy channel itself.
838 */
839 return !wdev ||
840 wdev->iftype == NL80211_IFTYPE_AP ||
841 wdev->iftype == NL80211_IFTYPE_WDS ||
842 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 843 wdev->iftype == NL80211_IFTYPE_MONITOR ||
844 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 845}
846
847static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
848 struct wireless_dev *wdev,
849 struct genl_info *info)
850{
851 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
852 u32 freq;
853 int result;
854
855 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
856 return -EINVAL;
857
858 if (!nl80211_can_set_dev_channel(wdev))
859 return -EOPNOTSUPP;
860
861 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
862 channel_type = nla_get_u32(info->attrs[
863 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
864 if (channel_type != NL80211_CHAN_NO_HT &&
865 channel_type != NL80211_CHAN_HT20 &&
866 channel_type != NL80211_CHAN_HT40PLUS &&
867 channel_type != NL80211_CHAN_HT40MINUS)
868 return -EINVAL;
869 }
870
871 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
872
873 mutex_lock(&rdev->devlist_mtx);
874 if (wdev) {
875 wdev_lock(wdev);
876 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
877 wdev_unlock(wdev);
878 } else {
879 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
880 }
881 mutex_unlock(&rdev->devlist_mtx);
882
883 return result;
884}
885
886static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
887{
4c476991
JB		 888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
889 struct net_device *netdev = info->user_ptr[1];
f444de05 890
4c476991 891 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 892}
893
e8347eba
BJ		 894static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
895{
43b19952
JB		 896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
897 struct net_device *dev = info->user_ptr[1];
898 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 899 const u8 *bssid;
e8347eba
BJ		 900
901 if (!info->attrs[NL80211_ATTR_MAC])
902 return -EINVAL;
903
43b19952
JB		 904 if (netif_running(dev))
905 return -EBUSY;
e8347eba 906
43b19952
JB		 907 if (!rdev->ops->set_wds_peer)
908 return -EOPNOTSUPP;
e8347eba 909
43b19952
JB		 910 if (wdev->iftype != NL80211_IFTYPE_WDS)
911 return -EOPNOTSUPP;
e8347eba
BJ		 912
913 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 914 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 915}
916
917
55682965
JB		 918static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
919{
920 struct cfg80211_registered_device *rdev;
f444de05
JB		 921 struct net_device *netdev = NULL;
922 struct wireless_dev *wdev;
a1e567c8 923 int result = 0, rem_txq_params = 0;
31888487 924 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 925 u32 changed;
926 u8 retry_short = 0, retry_long = 0;
927 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 928 u8 coverage_class = 0;
55682965 929
f444de05
JB		 930 /*
931 * Try to find the wiphy and netdev. Normally this
932 * function shouldn't need the netdev, but this is
933 * done for backward compatibility -- previously
934 * setting the channel was done per wiphy, but now
935 * it is per netdev. Previous userland like hostapd
936 * also passed a netdev to set_wiphy, so that it is
937 * possible to let that go to the right netdev!
938 */
4bbf4d56
JB		 939 mutex_lock(&cfg80211_mutex);
940
f444de05
JB		 941 if (info->attrs[NL80211_ATTR_IFINDEX]) {
942 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
943
944 netdev = dev_get_by_index(genl_info_net(info), ifindex);
945 if (netdev && netdev->ieee80211_ptr) {
946 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
947 mutex_lock(&rdev->mtx);
948 } else
949 netdev = NULL;
4bbf4d56
JB		 950 }
951
f444de05
JB		 952 if (!netdev) {
953 rdev = __cfg80211_rdev_from_info(info);
954 if (IS_ERR(rdev)) {
955 mutex_unlock(&cfg80211_mutex);
4c476991 956 return PTR_ERR(rdev);
f444de05
JB		 957 }
958 wdev = NULL;
959 netdev = NULL;
960 result = 0;
961
962 mutex_lock(&rdev->mtx);
963 } else if (netif_running(netdev) &&
964 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
965 wdev = netdev->ieee80211_ptr;
966 else
967 wdev = NULL;
968
969 /*
970 * end workaround code, by now the rdev is available
971 * and locked, and wdev may or may not be NULL.
972 */
4bbf4d56
JB		 973
974 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 975 result = cfg80211_dev_rename(
976 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 977
978 mutex_unlock(&cfg80211_mutex);
979
980 if (result)
981 goto bad_res;
31888487
JM		 982
983 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
984 struct ieee80211_txq_params txq_params;
985 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
986
987 if (!rdev->ops->set_txq_params) {
988 result = -EOPNOTSUPP;
989 goto bad_res;
990 }
991
992 nla_for_each_nested(nl_txq_params,
993 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
994 rem_txq_params) {
995 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
996 nla_data(nl_txq_params),
997 nla_len(nl_txq_params),
998 txq_params_policy);
999 result = parse_txq_params(tb, &txq_params);
1000 if (result)
1001 goto bad_res;
1002
1003 result = rdev->ops->set_txq_params(&rdev->wiphy,
1004 &txq_params);
1005 if (result)
1006 goto bad_res;
1007 }
1008 }
55682965 1009
72bdcf34 1010 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1011 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1012 if (result)
1013 goto bad_res;
1014 }
1015
98d2ff8b
JO		 1016 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1017 enum nl80211_tx_power_setting type;
1018 int idx, mbm = 0;
1019
1020 if (!rdev->ops->set_tx_power) {
60ea385f 1021 result = -EOPNOTSUPP;
98d2ff8b
JO		 1022 goto bad_res;
1023 }
1024
1025 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1026 type = nla_get_u32(info->attrs[idx]);
1027
1028 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1029 (type != NL80211_TX_POWER_AUTOMATIC)) {
1030 result = -EINVAL;
1031 goto bad_res;
1032 }
1033
1034 if (type != NL80211_TX_POWER_AUTOMATIC) {
1035 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1036 mbm = nla_get_u32(info->attrs[idx]);
1037 }
1038
1039 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1040 if (result)
1041 goto bad_res;
1042 }
1043
afe0cbf8
BR		 1044 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1045 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1046 u32 tx_ant, rx_ant;
1047 if (!rdev->ops->set_antenna) {
1048 result = -EOPNOTSUPP;
1049 goto bad_res;
1050 }
1051
1052 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1053 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1054
1055 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1056 if (result)
1057 goto bad_res;
1058 }
1059
b9a5f8ca
JM		 1060 changed = 0;
1061
1062 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1063 retry_short = nla_get_u8(
1064 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1065 if (retry_short == 0) {
1066 result = -EINVAL;
1067 goto bad_res;
1068 }
1069 changed |= WIPHY_PARAM_RETRY_SHORT;
1070 }
1071
1072 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1073 retry_long = nla_get_u8(
1074 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1075 if (retry_long == 0) {
1076 result = -EINVAL;
1077 goto bad_res;
1078 }
1079 changed |= WIPHY_PARAM_RETRY_LONG;
1080 }
1081
1082 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1083 frag_threshold = nla_get_u32(
1084 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1085 if (frag_threshold < 256) {
1086 result = -EINVAL;
1087 goto bad_res;
1088 }
1089 if (frag_threshold != (u32) -1) {
1090 /*
1091 * Fragments (apart from the last one) are required to
1092 * have even length. Make the fragmentation code
1093 * simpler by stripping LSB should someone try to use
1094 * odd threshold value.
1095 */
1096 frag_threshold &= ~0x1;
1097 }
1098 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1099 }
1100
1101 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1102 rts_threshold = nla_get_u32(
1103 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1104 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1105 }
1106
81077e82
LT		 1107 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1108 coverage_class = nla_get_u8(
1109 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1110 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1111 }
1112
b9a5f8ca
JM		 1113 if (changed) {
1114 u8 old_retry_short, old_retry_long;
1115 u32 old_frag_threshold, old_rts_threshold;
81077e82 1116 u8 old_coverage_class;
b9a5f8ca
JM		 1117
1118 if (!rdev->ops->set_wiphy_params) {
1119 result = -EOPNOTSUPP;
1120 goto bad_res;
1121 }
1122
1123 old_retry_short = rdev->wiphy.retry_short;
1124 old_retry_long = rdev->wiphy.retry_long;
1125 old_frag_threshold = rdev->wiphy.frag_threshold;
1126 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1127 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1128
1129 if (changed & WIPHY_PARAM_RETRY_SHORT)
1130 rdev->wiphy.retry_short = retry_short;
1131 if (changed & WIPHY_PARAM_RETRY_LONG)
1132 rdev->wiphy.retry_long = retry_long;
1133 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1134 rdev->wiphy.frag_threshold = frag_threshold;
1135 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1136 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1137 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1138 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1139
1140 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1141 if (result) {
1142 rdev->wiphy.retry_short = old_retry_short;
1143 rdev->wiphy.retry_long = old_retry_long;
1144 rdev->wiphy.frag_threshold = old_frag_threshold;
1145 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1146 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1147 }
1148 }
72bdcf34 1149
306d6112 1150 bad_res:
4bbf4d56 1151 mutex_unlock(&rdev->mtx);
f444de05
JB		 1152 if (netdev)
1153 dev_put(netdev);
55682965
JB		 1154 return result;
1155}
1156
1157
1158static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1159 struct cfg80211_registered_device *rdev,
55682965
JB		 1160 struct net_device *dev)
1161{
1162 void *hdr;
1163
1164 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1165 if (!hdr)
1166 return -1;
1167
1168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1169 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1170 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1171 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1172
1173 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1174 rdev->devlist_generation ^
1175 (cfg80211_rdev_list_generation << 2));
1176
55682965
JB		 1177 return genlmsg_end(msg, hdr);
1178
1179 nla_put_failure:
bc3ed28c
TG		 1180 genlmsg_cancel(msg, hdr);
1181 return -EMSGSIZE;
55682965
JB		 1182}
1183
1184static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1185{
1186 int wp_idx = 0;
1187 int if_idx = 0;
1188 int wp_start = cb->args[0];
1189 int if_start = cb->args[1];
f5ea9120 1190 struct cfg80211_registered_device *rdev;
55682965
JB		 1191 struct wireless_dev *wdev;
1192
a1794390 1193 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1194 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1195 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1196 continue;
bba95fef
JB		 1197 if (wp_idx < wp_start) {
1198 wp_idx++;
55682965 1199 continue;
bba95fef 1200 }
55682965
JB		 1201 if_idx = 0;
1202
f5ea9120
JB		 1203 mutex_lock(&rdev->devlist_mtx);
1204 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1205 if (if_idx < if_start) {
1206 if_idx++;
55682965 1207 continue;
bba95fef 1208 }
55682965
JB		 1209 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1210 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1211 rdev, wdev->netdev) < 0) {
1212 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1213 goto out;
1214 }
1215 if_idx++;
55682965 1216 }
f5ea9120 1217 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1218
1219 wp_idx++;
55682965 1220 }
bba95fef 1221 out:
a1794390 1222 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1223
1224 cb->args[0] = wp_idx;
1225 cb->args[1] = if_idx;
1226
1227 return skb->len;
1228}
1229
1230static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1231{
1232 struct sk_buff *msg;
4c476991
JB		 1233 struct cfg80211_registered_device *dev = info->user_ptr[0];
1234 struct net_device *netdev = info->user_ptr[1];
55682965 1235
fd2120ca 1236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1237 if (!msg)
4c476991 1238 return -ENOMEM;
55682965 1239
d726405a 1240 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1241 dev, netdev) < 0) {
1242 nlmsg_free(msg);
1243 return -ENOBUFS;
1244 }
55682965 1245
134e6375 1246 return genlmsg_reply(msg, info);
55682965
JB		 1247}
1248
66f7ac50
MW		 1249static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1250 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1251 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1252 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1253 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1254 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1255};
1256
1257static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1258{
1259 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1260 int flag;
1261
1262 *mntrflags = 0;
1263
1264 if (!nla)
1265 return -EINVAL;
1266
1267 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1268 nla, mntr_flags_policy))
1269 return -EINVAL;
1270
1271 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1272 if (flags[flag])
1273 *mntrflags |= (1<<flag);
1274
1275 return 0;
1276}
1277
9bc383de 1278static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1279 struct net_device *netdev, u8 use_4addr,
1280 enum nl80211_iftype iftype)
9bc383de 1281{
ad4bb6f8 1282 if (!use_4addr) {
f350a0a8 1283 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1284 return -EBUSY;
9bc383de 1285 return 0;
ad4bb6f8 1286 }
9bc383de
JB		 1287
1288 switch (iftype) {
1289 case NL80211_IFTYPE_AP_VLAN:
1290 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1291 return 0;
1292 break;
1293 case NL80211_IFTYPE_STATION:
1294 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1295 return 0;
1296 break;
1297 default:
1298 break;
1299 }
1300
1301 return -EOPNOTSUPP;
1302}
1303
55682965
JB		 1304static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1305{
4c476991 1306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1307 struct vif_params params;
e36d56b6 1308 int err;
04a773ad 1309 enum nl80211_iftype otype, ntype;
4c476991 1310 struct net_device *dev = info->user_ptr[1];
92ffe055 1311 u32 _flags, *flags = NULL;
ac7f9cfa 1312 bool change = false;
55682965 1313
2ec600d6
LCC		 1314 memset(&params, 0, sizeof(params));
1315
04a773ad 1316 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1317
723b038d 1318 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1319 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1320 if (otype != ntype)
ac7f9cfa 1321 change = true;
4c476991
JB		 1322 if (ntype > NL80211_IFTYPE_MAX)
1323 return -EINVAL;
723b038d
JB		 1324 }
1325
92ffe055 1326 if (info->attrs[NL80211_ATTR_MESH_ID]) {
4c476991
JB		 1327 if (ntype != NL80211_IFTYPE_MESH_POINT)
1328 return -EINVAL;
2ec600d6
LCC		 1329 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1330 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 1331 change = true;
2ec600d6
LCC		 1332 }
1333
8b787643
FF		 1334 if (info->attrs[NL80211_ATTR_4ADDR]) {
1335 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1336 change = true;
ad4bb6f8 1337 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1338 if (err)
4c476991 1339 return err;
8b787643
FF		 1340 } else {
1341 params.use_4addr = -1;
1342 }
1343
92ffe055 1344 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1345 if (ntype != NL80211_IFTYPE_MONITOR)
1346 return -EINVAL;
92ffe055
JB		 1347 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1348 &_flags);
ac7f9cfa 1349 if (err)
4c476991 1350 return err;
ac7f9cfa
JB		 1351
1352 flags = &_flags;
1353 change = true;
92ffe055 1354 }
3b85875a 1355
ac7f9cfa 1356 if (change)
3d54d255 1357 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1358 else
1359 err = 0;
60719ffd 1360
9bc383de
JB		 1361 if (!err && params.use_4addr != -1)
1362 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1363
55682965
JB		 1364 return err;
1365}
1366
1367static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1368{
4c476991 1369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1370 struct vif_params params;
f9e10ce4 1371 struct net_device *dev;
55682965
JB		 1372 int err;
1373 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1374 u32 flags;
55682965 1375
2ec600d6
LCC		 1376 memset(&params, 0, sizeof(params));
1377
55682965
JB		 1378 if (!info->attrs[NL80211_ATTR_IFNAME])
1379 return -EINVAL;
1380
1381 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1382 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1383 if (type > NL80211_IFTYPE_MAX)
1384 return -EINVAL;
1385 }
1386
79c97e97 1387 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1388 !(rdev->wiphy.interface_modes & (1 << type)))
1389 return -EOPNOTSUPP;
55682965 1390
2ec600d6
LCC		 1391 if (type == NL80211_IFTYPE_MESH_POINT &&
1392 info->attrs[NL80211_ATTR_MESH_ID]) {
1393 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1394 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1395 }
1396
9bc383de 1397 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1398 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1399 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1400 if (err)
4c476991 1401 return err;
9bc383de 1402 }
8b787643 1403
66f7ac50
MW		 1404 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1405 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1406 &flags);
f9e10ce4 1407 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1408 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1409 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1410 if (IS_ERR(dev))
1411 return PTR_ERR(dev);
2ec600d6 1412
f9e10ce4 1413 return 0;
55682965
JB		 1414}
1415
1416static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1417{
4c476991
JB		 1418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1419 struct net_device *dev = info->user_ptr[1];
55682965 1420
4c476991
JB		 1421 if (!rdev->ops->del_virtual_intf)
1422 return -EOPNOTSUPP;
55682965 1423
4c476991 1424 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1425}
1426
41ade00f
JB		 1427struct get_key_cookie {
1428 struct sk_buff *msg;
1429 int error;
b9454e83 1430 int idx;
41ade00f
JB		 1431};
1432
1433static void get_key_callback(void *c, struct key_params *params)
1434{
b9454e83 1435 struct nlattr *key;
41ade00f
JB		 1436 struct get_key_cookie *cookie = c;
1437
1438 if (params->key)
1439 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1440 params->key_len, params->key);
1441
1442 if (params->seq)
1443 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1444 params->seq_len, params->seq);
1445
1446 if (params->cipher)
1447 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1448 params->cipher);
1449
b9454e83
JB		 1450 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1451 if (!key)
1452 goto nla_put_failure;
1453
1454 if (params->key)
1455 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1456 params->key_len, params->key);
1457
1458 if (params->seq)
1459 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1460 params->seq_len, params->seq);
1461
1462 if (params->cipher)
1463 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1464 params->cipher);
1465
1466 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1467
1468 nla_nest_end(cookie->msg, key);
1469
41ade00f
JB		 1470 return;
1471 nla_put_failure:
1472 cookie->error = 1;
1473}
1474
1475static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1476{
4c476991 1477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1478 int err;
4c476991 1479 struct net_device *dev = info->user_ptr[1];
41ade00f 1480 u8 key_idx = 0;
e31b8213
JB		 1481 const u8 *mac_addr = NULL;
1482 bool pairwise;
41ade00f
JB		 1483 struct get_key_cookie cookie = {
1484 .error = 0,
1485 };
1486 void *hdr;
1487 struct sk_buff *msg;
1488
1489 if (info->attrs[NL80211_ATTR_KEY_IDX])
1490 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1491
3cfcf6ac 1492 if (key_idx > 5)
41ade00f
JB		 1493 return -EINVAL;
1494
1495 if (info->attrs[NL80211_ATTR_MAC])
1496 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1497
e31b8213
JB		 1498 pairwise = !!mac_addr;
1499 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1500 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1501 if (kt >= NUM_NL80211_KEYTYPES)
1502 return -EINVAL;
1503 if (kt != NL80211_KEYTYPE_GROUP &&
1504 kt != NL80211_KEYTYPE_PAIRWISE)
1505 return -EINVAL;
1506 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1507 }
1508
4c476991
JB		 1509 if (!rdev->ops->get_key)
1510 return -EOPNOTSUPP;
41ade00f 1511
fd2120ca 1512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1513 if (!msg)
1514 return -ENOMEM;
41ade00f
JB		 1515
1516 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1517 NL80211_CMD_NEW_KEY);
4c476991
JB		 1518 if (IS_ERR(hdr))
1519 return PTR_ERR(hdr);
41ade00f
JB		 1520
1521 cookie.msg = msg;
b9454e83 1522 cookie.idx = key_idx;
41ade00f
JB		 1523
1524 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1525 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1526 if (mac_addr)
1527 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1528
e31b8213
JB		 1529 if (pairwise && mac_addr &&
1530 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1531 return -ENOENT;
1532
1533 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1534 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1535
1536 if (err)
6c95e2a2 1537 goto free_msg;
41ade00f
JB		 1538
1539 if (cookie.error)
1540 goto nla_put_failure;
1541
1542 genlmsg_end(msg, hdr);
4c476991 1543 return genlmsg_reply(msg, info);
41ade00f
JB		 1544
1545 nla_put_failure:
1546 err = -ENOBUFS;
6c95e2a2 1547 free_msg:
41ade00f 1548 nlmsg_free(msg);
41ade00f
JB		 1549 return err;
1550}
1551
1552static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1553{
4c476991 1554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1555 struct key_parse key;
41ade00f 1556 int err;
4c476991 1557 struct net_device *dev = info->user_ptr[1];
3cfcf6ac
JM		 1558 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1559 u8 key_index);
41ade00f 1560
b9454e83
JB		 1561 err = nl80211_parse_key(info, &key);
1562 if (err)
1563 return err;
41ade00f 1564
b9454e83 1565 if (key.idx < 0)
41ade00f
JB		 1566 return -EINVAL;
1567
b9454e83
JB		 1568 /* only support setting default key */
1569 if (!key.def && !key.defmgmt)
41ade00f
JB		 1570 return -EINVAL;
1571
b9454e83 1572 if (key.def)
79c97e97 1573 func = rdev->ops->set_default_key;
3cfcf6ac 1574 else
79c97e97 1575 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac 1576
4c476991
JB		 1577 if (!func)
1578 return -EOPNOTSUPP;
41ade00f 1579
fffd0934
JB		 1580 wdev_lock(dev->ieee80211_ptr);
1581 err = nl80211_key_allowed(dev->ieee80211_ptr);
1582 if (!err)
1583 err = func(&rdev->wiphy, dev, key.idx);
1584
3d23e349 1585#ifdef CONFIG_CFG80211_WEXT
08645126 1586 if (!err) {
79c97e97 1587 if (func == rdev->ops->set_default_key)
b9454e83 1588 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1589 else
b9454e83 1590 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1591 }
1592#endif
fffd0934 1593 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1594
41ade00f
JB		 1595 return err;
1596}
1597
1598static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1599{
4c476991 1600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1601 int err;
4c476991 1602 struct net_device *dev = info->user_ptr[1];
b9454e83 1603 struct key_parse key;
e31b8213 1604 const u8 *mac_addr = NULL;
41ade00f 1605
b9454e83
JB		 1606 err = nl80211_parse_key(info, &key);
1607 if (err)
1608 return err;
41ade00f 1609
b9454e83 1610 if (!key.p.key)
41ade00f
JB		 1611 return -EINVAL;
1612
41ade00f
JB		 1613 if (info->attrs[NL80211_ATTR_MAC])
1614 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1615
e31b8213
JB		 1616 if (key.type == -1) {
1617 if (mac_addr)
1618 key.type = NL80211_KEYTYPE_PAIRWISE;
1619 else
1620 key.type = NL80211_KEYTYPE_GROUP;
1621 }
1622
1623 /* for now */
1624 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1625 key.type != NL80211_KEYTYPE_GROUP)
1626 return -EINVAL;
1627
4c476991
JB		 1628 if (!rdev->ops->add_key)
1629 return -EOPNOTSUPP;
25e47c18 1630
e31b8213
JB		 1631 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1632 key.type == NL80211_KEYTYPE_PAIRWISE,
1633 mac_addr))
4c476991 1634 return -EINVAL;
41ade00f 1635
fffd0934
JB		 1636 wdev_lock(dev->ieee80211_ptr);
1637 err = nl80211_key_allowed(dev->ieee80211_ptr);
1638 if (!err)
1639 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1640 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1641 mac_addr, &key.p);
1642 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1643
41ade00f
JB		 1644 return err;
1645}
1646
1647static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1648{
4c476991 1649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1650 int err;
4c476991 1651 struct net_device *dev = info->user_ptr[1];
41ade00f 1652 u8 *mac_addr = NULL;
b9454e83 1653 struct key_parse key;
41ade00f 1654
b9454e83
JB		 1655 err = nl80211_parse_key(info, &key);
1656 if (err)
1657 return err;
41ade00f
JB		 1658
1659 if (info->attrs[NL80211_ATTR_MAC])
1660 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1661
e31b8213
JB		 1662 if (key.type == -1) {
1663 if (mac_addr)
1664 key.type = NL80211_KEYTYPE_PAIRWISE;
1665 else
1666 key.type = NL80211_KEYTYPE_GROUP;
1667 }
1668
1669 /* for now */
1670 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1671 key.type != NL80211_KEYTYPE_GROUP)
1672 return -EINVAL;
1673
4c476991
JB		 1674 if (!rdev->ops->del_key)
1675 return -EOPNOTSUPP;
41ade00f 1676
fffd0934
JB		 1677 wdev_lock(dev->ieee80211_ptr);
1678 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1679
1680 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1681 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1682 err = -ENOENT;
1683
fffd0934 1684 if (!err)
e31b8213
JB		 1685 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1686 key.type == NL80211_KEYTYPE_PAIRWISE,
1687 mac_addr);
41ade00f 1688
3d23e349 1689#ifdef CONFIG_CFG80211_WEXT
08645126 1690 if (!err) {
b9454e83 1691 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1692 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1693 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1694 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1695 }
1696#endif
fffd0934 1697 wdev_unlock(dev->ieee80211_ptr);
08645126 1698
41ade00f
JB		 1699 return err;
1700}
1701
ed1b6cc7
JB		 1702static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1703{
1704 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1705 struct beacon_parameters *info);
4c476991
JB		 1706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1707 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1708 struct beacon_parameters params;
1709 int haveinfo = 0;
1710
f4a11bb0
JB		 1711 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1712 return -EINVAL;
1713
074ac8df 1714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1715 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1716 return -EOPNOTSUPP;
eec60b03 1717
ed1b6cc7
JB		 1718 switch (info->genlhdr->cmd) {
1719 case NL80211_CMD_NEW_BEACON:
1720 /* these are required for NEW_BEACON */
1721 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1722 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1723 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1724 return -EINVAL;
ed1b6cc7 1725
79c97e97 1726 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1727 break;
1728 case NL80211_CMD_SET_BEACON:
79c97e97 1729 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1730 break;
1731 default:
1732 WARN_ON(1);
4c476991 1733 return -EOPNOTSUPP;
ed1b6cc7
JB		 1734 }
1735
4c476991
JB		 1736 if (!call)
1737 return -EOPNOTSUPP;
ed1b6cc7
JB		 1738
1739 memset(&params, 0, sizeof(params));
1740
1741 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1742 params.interval =
1743 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1744 haveinfo = 1;
1745 }
1746
1747 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1748 params.dtim_period =
1749 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1750 haveinfo = 1;
1751 }
1752
1753 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1754 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1755 params.head_len =
1756 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1757 haveinfo = 1;
1758 }
1759
1760 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1761 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1762 params.tail_len =
1763 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1764 haveinfo = 1;
1765 }
1766
4c476991
JB		 1767 if (!haveinfo)
1768 return -EINVAL;
3b85875a 1769
4c476991 1770 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1771}
1772
1773static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1774{
4c476991
JB		 1775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1776 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1777
4c476991
JB		 1778 if (!rdev->ops->del_beacon)
1779 return -EOPNOTSUPP;
ed1b6cc7 1780
074ac8df 1781 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1782 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1783 return -EOPNOTSUPP;
3b85875a 1784
4c476991 1785 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1786}
1787
5727ef1b
JB		 1788static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1789 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1790 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1791 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1792 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1793};
1794
eccb8e8f
JB		 1795static int parse_station_flags(struct genl_info *info,
1796 struct station_parameters *params)
5727ef1b
JB		 1797{
1798 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1799 struct nlattr *nla;
5727ef1b
JB		 1800 int flag;
1801
eccb8e8f
JB		 1802 /*
1803 * Try parsing the new attribute first so userspace
1804 * can specify both for older kernels.
1805 */
1806 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1807 if (nla) {
1808 struct nl80211_sta_flag_update *sta_flags;
1809
1810 sta_flags = nla_data(nla);
1811 params->sta_flags_mask = sta_flags->mask;
1812 params->sta_flags_set = sta_flags->set;
1813 if ((params->sta_flags_mask |
1814 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1815 return -EINVAL;
1816 return 0;
1817 }
1818
1819 /* if present, parse the old attribute */
5727ef1b 1820
eccb8e8f 1821 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1822 if (!nla)
1823 return 0;
1824
1825 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1826 nla, sta_flags_policy))
1827 return -EINVAL;
1828
eccb8e8f
JB		 1829 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1830 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1831
1832 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1833 if (flags[flag])
eccb8e8f 1834 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1835
1836 return 0;
1837}
1838
fd5b74dc
JB		 1839static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1840 int flags, struct net_device *dev,
98b62183 1841 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1842{
1843 void *hdr;
420e7fab
HR		 1844 struct nlattr *sinfoattr, *txrate;
1845 u16 bitrate;
fd5b74dc
JB		 1846
1847 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1848 if (!hdr)
1849 return -1;
1850
1851 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1852 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1853
f5ea9120
JB		 1854 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1855
2ec600d6
LCC		 1856 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1857 if (!sinfoattr)
fd5b74dc 1858 goto nla_put_failure;
2ec600d6
LCC		 1859 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1860 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1861 sinfo->inactive_time);
1862 if (sinfo->filled & STATION_INFO_RX_BYTES)
1863 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1864 sinfo->rx_bytes);
1865 if (sinfo->filled & STATION_INFO_TX_BYTES)
1866 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1867 sinfo->tx_bytes);
1868 if (sinfo->filled & STATION_INFO_LLID)
1869 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1870 sinfo->llid);
1871 if (sinfo->filled & STATION_INFO_PLID)
1872 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1873 sinfo->plid);
1874 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1875 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1876 sinfo->plink_state);
420e7fab
HR		 1877 if (sinfo->filled & STATION_INFO_SIGNAL)
1878 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1879 sinfo->signal);
1880 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1881 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1882 if (!txrate)
1883 goto nla_put_failure;
1884
254416aa
JL		 1885 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1886 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1887 if (bitrate > 0)
1888 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1889
420e7fab
HR		 1890 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1891 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1892 sinfo->txrate.mcs);
1893 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1894 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1895 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1896 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1897
1898 nla_nest_end(msg, txrate);
1899 }
98c8a60a
JM		 1900 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1901 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1902 sinfo->rx_packets);
1903 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1904 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1905 sinfo->tx_packets);
b206b4ef
BR		 1906 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1907 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1908 sinfo->tx_retries);
1909 if (sinfo->filled & STATION_INFO_TX_FAILED)
1910 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1911 sinfo->tx_failed);
2ec600d6 1912 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1913
1914 return genlmsg_end(msg, hdr);
1915
1916 nla_put_failure:
bc3ed28c
TG		 1917 genlmsg_cancel(msg, hdr);
1918 return -EMSGSIZE;
fd5b74dc
JB		 1919}
1920
2ec600d6 1921static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1922 struct netlink_callback *cb)
2ec600d6 1923{
2ec600d6
LCC		 1924 struct station_info sinfo;
1925 struct cfg80211_registered_device *dev;
bba95fef 1926 struct net_device *netdev;
2ec600d6 1927 u8 mac_addr[ETH_ALEN];
bba95fef 1928 int sta_idx = cb->args[1];
2ec600d6 1929 int err;
2ec600d6 1930
67748893
JB		 1931 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1932 if (err)
1933 return err;
bba95fef
JB		 1934
1935 if (!dev->ops->dump_station) {
eec60b03 1936 err = -EOPNOTSUPP;
bba95fef
JB		 1937 goto out_err;
1938 }
1939
bba95fef
JB		 1940 while (1) {
1941 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1942 mac_addr, &sinfo);
1943 if (err == -ENOENT)
1944 break;
1945 if (err)
3b85875a 1946 goto out_err;
bba95fef
JB		 1947
1948 if (nl80211_send_station(skb,
1949 NETLINK_CB(cb->skb).pid,
1950 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1951 netdev, mac_addr,
1952 &sinfo) < 0)
1953 goto out;
1954
1955 sta_idx++;
1956 }
1957
1958
1959 out:
1960 cb->args[1] = sta_idx;
1961 err = skb->len;
bba95fef 1962 out_err:
67748893 1963 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 1964
1965 return err;
2ec600d6 1966}
fd5b74dc 1967
5727ef1b
JB		 1968static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1969{
4c476991
JB		 1970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1971 struct net_device *dev = info->user_ptr[1];
2ec600d6 1972 struct station_info sinfo;
fd5b74dc
JB		 1973 struct sk_buff *msg;
1974 u8 *mac_addr = NULL;
4c476991 1975 int err;
fd5b74dc 1976
2ec600d6 1977 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1978
1979 if (!info->attrs[NL80211_ATTR_MAC])
1980 return -EINVAL;
1981
1982 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1983
4c476991
JB		 1984 if (!rdev->ops->get_station)
1985 return -EOPNOTSUPP;
3b85875a 1986
4c476991 1987 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 1988 if (err)
4c476991 1989 return err;
2ec600d6 1990
fd2120ca 1991 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 1992 if (!msg)
4c476991 1993 return -ENOMEM;
fd5b74dc
JB		 1994
1995 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1996 dev, mac_addr, &sinfo) < 0) {
1997 nlmsg_free(msg);
1998 return -ENOBUFS;
1999 }
3b85875a 2000
4c476991 2001 return genlmsg_reply(msg, info);
5727ef1b
JB		 2002}
2003
2004/*
c258d2de 2005 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2006 */
463d0183 2007static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2008 struct cfg80211_registered_device *rdev,
2009 struct net_device **vlan)
2010{
463d0183 2011 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2012 *vlan = NULL;
2013
2014 if (vlanattr) {
463d0183
JB		 2015 *vlan = dev_get_by_index(genl_info_net(info),
2016 nla_get_u32(vlanattr));
5727ef1b
JB		 2017 if (!*vlan)
2018 return -ENODEV;
2019 if (!(*vlan)->ieee80211_ptr)
2020 return -EINVAL;
2021 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2022 return -EINVAL;
c258d2de
FF		 2023 if (!netif_running(*vlan))
2024 return -ENETDOWN;
5727ef1b
JB		 2025 }
2026 return 0;
2027}
2028
2029static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2030{
4c476991 2031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2032 int err;
4c476991 2033 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2034 struct station_parameters params;
2035 u8 *mac_addr = NULL;
2036
2037 memset(&params, 0, sizeof(params));
2038
2039 params.listen_interval = -1;
2040
2041 if (info->attrs[NL80211_ATTR_STA_AID])
2042 return -EINVAL;
2043
2044 if (!info->attrs[NL80211_ATTR_MAC])
2045 return -EINVAL;
2046
2047 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2048
2049 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2050 params.supported_rates =
2051 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2052 params.supported_rates_len =
2053 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2054 }
2055
2056 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2057 params.listen_interval =
2058 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2059
36aedc90
JM		 2060 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2061 params.ht_capa =
2062 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2063
eccb8e8f 2064 if (parse_station_flags(info, &params))
5727ef1b
JB		 2065 return -EINVAL;
2066
2ec600d6
LCC		 2067 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2068 params.plink_action =
2069 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2070
463d0183 2071 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2072 if (err)
034d655e 2073 goto out;
a97f4424
JB		 2074
2075 /* validate settings */
2076 err = 0;
2077
2078 switch (dev->ieee80211_ptr->iftype) {
2079 case NL80211_IFTYPE_AP:
2080 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2081 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2082 /* disallow mesh-specific things */
2083 if (params.plink_action)
2084 err = -EINVAL;
2085 break;
074ac8df 2086 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2087 case NL80211_IFTYPE_STATION:
2088 /* disallow everything but AUTHORIZED flag */
2089 if (params.plink_action)
2090 err = -EINVAL;
2091 if (params.vlan)
2092 err = -EINVAL;
2093 if (params.supported_rates)
2094 err = -EINVAL;
2095 if (params.ht_capa)
2096 err = -EINVAL;
2097 if (params.listen_interval >= 0)
2098 err = -EINVAL;
2099 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2100 err = -EINVAL;
2101 break;
2102 case NL80211_IFTYPE_MESH_POINT:
2103 /* disallow things mesh doesn't support */
2104 if (params.vlan)
2105 err = -EINVAL;
2106 if (params.ht_capa)
2107 err = -EINVAL;
2108 if (params.listen_interval >= 0)
2109 err = -EINVAL;
2110 if (params.supported_rates)
2111 err = -EINVAL;
2112 if (params.sta_flags_mask)
2113 err = -EINVAL;
2114 break;
2115 default:
2116 err = -EINVAL;
034d655e
JB		 2117 }
2118
5727ef1b
JB		 2119 if (err)
2120 goto out;
2121
79c97e97 2122 if (!rdev->ops->change_station) {
5727ef1b
JB		 2123 err = -EOPNOTSUPP;
2124 goto out;
2125 }
2126
79c97e97 2127 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2128
2129 out:
2130 if (params.vlan)
2131 dev_put(params.vlan);
3b85875a 2132
5727ef1b
JB		 2133 return err;
2134}
2135
2136static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2137{
4c476991 2138 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2139 int err;
4c476991 2140 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2141 struct station_parameters params;
2142 u8 *mac_addr = NULL;
2143
2144 memset(&params, 0, sizeof(params));
2145
2146 if (!info->attrs[NL80211_ATTR_MAC])
2147 return -EINVAL;
2148
5727ef1b
JB		 2149 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2150 return -EINVAL;
2151
2152 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2153 return -EINVAL;
2154
0e956c13
TLSC		 2155 if (!info->attrs[NL80211_ATTR_STA_AID])
2156 return -EINVAL;
2157
5727ef1b
JB		 2158 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2159 params.supported_rates =
2160 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2161 params.supported_rates_len =
2162 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2163 params.listen_interval =
2164 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2165
0e956c13
TLSC		 2166 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2167 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2168 return -EINVAL;
51b50fbe 2169
36aedc90
JM		 2170 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2171 params.ht_capa =
2172 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2173
eccb8e8f 2174 if (parse_station_flags(info, &params))
5727ef1b
JB		 2175 return -EINVAL;
2176
0e956c13 2177 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2180 return -EINVAL;
0e956c13 2181
463d0183 2182 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2183 if (err)
e80cf853 2184 goto out;
a97f4424
JB		 2185
2186 /* validate settings */
2187 err = 0;
2188
79c97e97 2189 if (!rdev->ops->add_station) {
5727ef1b
JB		 2190 err = -EOPNOTSUPP;
2191 goto out;
2192 }
2193
79c97e97 2194 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2195
2196 out:
2197 if (params.vlan)
2198 dev_put(params.vlan);
5727ef1b
JB		 2199 return err;
2200}
2201
2202static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2203{
4c476991
JB		 2204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2205 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2206 u8 *mac_addr = NULL;
2207
2208 if (info->attrs[NL80211_ATTR_MAC])
2209 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2210
e80cf853 2211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2212 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2213 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2214 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2215 return -EINVAL;
5727ef1b 2216
4c476991
JB		 2217 if (!rdev->ops->del_station)
2218 return -EOPNOTSUPP;
3b85875a 2219
4c476991 2220 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2221}
2222
2ec600d6
LCC		 2223static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2224 int flags, struct net_device *dev,
2225 u8 *dst, u8 *next_hop,
2226 struct mpath_info *pinfo)
2227{
2228 void *hdr;
2229 struct nlattr *pinfoattr;
2230
2231 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2232 if (!hdr)
2233 return -1;
2234
2235 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2236 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2237 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2238
f5ea9120
JB		 2239 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2240
2ec600d6
LCC		 2241 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2242 if (!pinfoattr)
2243 goto nla_put_failure;
2244 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2245 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2246 pinfo->frame_qlen);
d19b3bf6
RP		 2247 if (pinfo->filled & MPATH_INFO_SN)
2248 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2249 pinfo->sn);
2ec600d6
LCC		 2250 if (pinfo->filled & MPATH_INFO_METRIC)
2251 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2252 pinfo->metric);
2253 if (pinfo->filled & MPATH_INFO_EXPTIME)
2254 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2255 pinfo->exptime);
2256 if (pinfo->filled & MPATH_INFO_FLAGS)
2257 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2258 pinfo->flags);
2259 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2260 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2261 pinfo->discovery_timeout);
2262 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2263 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2264 pinfo->discovery_retries);
2265
2266 nla_nest_end(msg, pinfoattr);
2267
2268 return genlmsg_end(msg, hdr);
2269
2270 nla_put_failure:
bc3ed28c
TG		 2271 genlmsg_cancel(msg, hdr);
2272 return -EMSGSIZE;
2ec600d6
LCC		 2273}
2274
2275static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2276 struct netlink_callback *cb)
2ec600d6 2277{
2ec600d6
LCC		 2278 struct mpath_info pinfo;
2279 struct cfg80211_registered_device *dev;
bba95fef 2280 struct net_device *netdev;
2ec600d6
LCC		 2281 u8 dst[ETH_ALEN];
2282 u8 next_hop[ETH_ALEN];
bba95fef 2283 int path_idx = cb->args[1];
2ec600d6 2284 int err;
2ec600d6 2285
67748893
JB		 2286 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2287 if (err)
2288 return err;
bba95fef
JB		 2289
2290 if (!dev->ops->dump_mpath) {
eec60b03 2291 err = -EOPNOTSUPP;
bba95fef
JB		 2292 goto out_err;
2293 }
2294
eec60b03
JM		 2295 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2296 err = -EOPNOTSUPP;
0448b5fc 2297 goto out_err;
eec60b03
JM		 2298 }
2299
bba95fef
JB		 2300 while (1) {
2301 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2302 dst, next_hop, &pinfo);
2303 if (err == -ENOENT)
2ec600d6 2304 break;
bba95fef 2305 if (err)
3b85875a 2306 goto out_err;
2ec600d6 2307
bba95fef
JB		 2308 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2309 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2310 netdev, dst, next_hop,
2311 &pinfo) < 0)
2312 goto out;
2ec600d6 2313
bba95fef 2314 path_idx++;
2ec600d6 2315 }
2ec600d6 2316
2ec600d6 2317
bba95fef
JB		 2318 out:
2319 cb->args[1] = path_idx;
2320 err = skb->len;
bba95fef 2321 out_err:
67748893 2322 nl80211_finish_netdev_dump(dev);
bba95fef 2323 return err;
2ec600d6
LCC		 2324}
2325
2326static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2327{
4c476991 2328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2329 int err;
4c476991 2330 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2331 struct mpath_info pinfo;
2332 struct sk_buff *msg;
2333 u8 *dst = NULL;
2334 u8 next_hop[ETH_ALEN];
2335
2336 memset(&pinfo, 0, sizeof(pinfo));
2337
2338 if (!info->attrs[NL80211_ATTR_MAC])
2339 return -EINVAL;
2340
2341 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2342
4c476991
JB		 2343 if (!rdev->ops->get_mpath)
2344 return -EOPNOTSUPP;
2ec600d6 2345
4c476991
JB		 2346 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2347 return -EOPNOTSUPP;
eec60b03 2348
79c97e97 2349 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2350 if (err)
4c476991 2351 return err;
2ec600d6 2352
fd2120ca 2353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2354 if (!msg)
4c476991 2355 return -ENOMEM;
2ec600d6
LCC		 2356
2357 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2358 dev, dst, next_hop, &pinfo) < 0) {
2359 nlmsg_free(msg);
2360 return -ENOBUFS;
2361 }
3b85875a 2362
4c476991 2363 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2364}
2365
2366static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2367{
4c476991
JB		 2368 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2369 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2370 u8 *dst = NULL;
2371 u8 *next_hop = NULL;
2372
2373 if (!info->attrs[NL80211_ATTR_MAC])
2374 return -EINVAL;
2375
2376 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2377 return -EINVAL;
2378
2379 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2380 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2381
4c476991
JB		 2382 if (!rdev->ops->change_mpath)
2383 return -EOPNOTSUPP;
35a8efe1 2384
4c476991
JB		 2385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2386 return -EOPNOTSUPP;
2ec600d6 2387
4c476991 2388 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2389}
4c476991 2390
2ec600d6
LCC		 2391static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2392{
4c476991
JB		 2393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2394 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2395 u8 *dst = NULL;
2396 u8 *next_hop = NULL;
2397
2398 if (!info->attrs[NL80211_ATTR_MAC])
2399 return -EINVAL;
2400
2401 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2402 return -EINVAL;
2403
2404 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2405 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2406
4c476991
JB		 2407 if (!rdev->ops->add_mpath)
2408 return -EOPNOTSUPP;
35a8efe1 2409
4c476991
JB		 2410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2411 return -EOPNOTSUPP;
2ec600d6 2412
4c476991 2413 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2414}
2415
2416static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2417{
4c476991
JB		 2418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2419 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2420 u8 *dst = NULL;
2421
2422 if (info->attrs[NL80211_ATTR_MAC])
2423 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2424
4c476991
JB		 2425 if (!rdev->ops->del_mpath)
2426 return -EOPNOTSUPP;
3b85875a 2427
4c476991 2428 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2429}
2430
9f1ba906
JM		 2431static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2432{
4c476991
JB		 2433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2434 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2435 struct bss_parameters params;
2436
2437 memset(&params, 0, sizeof(params));
2438 /* default to not changing parameters */
2439 params.use_cts_prot = -1;
2440 params.use_short_preamble = -1;
2441 params.use_short_slot_time = -1;
fd8aaaf3 2442 params.ap_isolate = -1;
9f1ba906
JM		 2443
2444 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2445 params.use_cts_prot =
2446 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2447 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2448 params.use_short_preamble =
2449 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2450 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2451 params.use_short_slot_time =
2452 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2453 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2454 params.basic_rates =
2455 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2456 params.basic_rates_len =
2457 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2458 }
fd8aaaf3
FF		 2459 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2460 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
9f1ba906 2461
4c476991
JB		 2462 if (!rdev->ops->change_bss)
2463 return -EOPNOTSUPP;
9f1ba906 2464
074ac8df 2465 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2466 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2467 return -EOPNOTSUPP;
3b85875a 2468
4c476991 2469 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2470}
2471
b54452b0 2472static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2473 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2474 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2475 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2476 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2477 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2478 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2479};
2480
2481static int parse_reg_rule(struct nlattr *tb[],
2482 struct ieee80211_reg_rule *reg_rule)
2483{
2484 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2485 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2486
2487 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2488 return -EINVAL;
2489 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2490 return -EINVAL;
2491 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2492 return -EINVAL;
2493 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2494 return -EINVAL;
2495 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2496 return -EINVAL;
2497
2498 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2499
2500 freq_range->start_freq_khz =
2501 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2502 freq_range->end_freq_khz =
2503 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2504 freq_range->max_bandwidth_khz =
2505 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2506
2507 power_rule->max_eirp =
2508 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2509
2510 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2511 power_rule->max_antenna_gain =
2512 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2513
2514 return 0;
2515}
2516
2517static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2518{
2519 int r;
2520 char *data = NULL;
2521
80778f18
LR		 2522 /*
2523 * You should only get this when cfg80211 hasn't yet initialized
2524 * completely when built-in to the kernel right between the time
2525 * window between nl80211_init() and regulatory_init(), if that is
2526 * even possible.
2527 */
2528 mutex_lock(&cfg80211_mutex);
2529 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2530 mutex_unlock(&cfg80211_mutex);
2531 return -EINPROGRESS;
80778f18 2532 }
fe33eb39 2533 mutex_unlock(&cfg80211_mutex);
80778f18 2534
fe33eb39
LR		 2535 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2536 return -EINVAL;
b2e1b302
LR		 2537
2538 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2539
fe33eb39
LR		 2540 r = regulatory_hint_user(data);
2541
b2e1b302
LR		 2542 return r;
2543}
2544
93da9cc1 2545static int nl80211_get_mesh_params(struct sk_buff *skb,
2546 struct genl_info *info)
2547{
4c476991 2548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
93da9cc1 2549 struct mesh_config cur_params;
2550 int err;
4c476991 2551 struct net_device *dev = info->user_ptr[1];
93da9cc1 2552 void *hdr;
2553 struct nlattr *pinfoattr;
2554 struct sk_buff *msg;
2555
4c476991
JB		 2556 if (!rdev->ops->get_mesh_params)
2557 return -EOPNOTSUPP;
f3f92586 2558
93da9cc1 2559 /* Get the mesh params */
79c97e97 2560 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
93da9cc1 2561 if (err)
4c476991 2562 return err;
93da9cc1 2563
2564 /* Draw up a netlink message to send back */
fd2120ca 2565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2566 if (!msg)
2567 return -ENOMEM;
93da9cc1 2568 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2569 NL80211_CMD_GET_MESH_PARAMS);
2570 if (!hdr)
2571 goto nla_put_failure;
2572 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2573 if (!pinfoattr)
2574 goto nla_put_failure;
2575 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2576 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2577 cur_params.dot11MeshRetryTimeout);
2578 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2579 cur_params.dot11MeshConfirmTimeout);
2580 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2581 cur_params.dot11MeshHoldingTimeout);
2582 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2583 cur_params.dot11MeshMaxPeerLinks);
2584 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2585 cur_params.dot11MeshMaxRetries);
2586 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2587 cur_params.dot11MeshTTL);
45904f21
JC		 2588 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2589 cur_params.element_ttl);
93da9cc1 2590 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2591 cur_params.auto_open_plinks);
2592 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2593 cur_params.dot11MeshHWMPmaxPREQretries);
2594 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2595 cur_params.path_refresh_time);
2596 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2597 cur_params.min_discovery_timeout);
2598 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2599 cur_params.dot11MeshHWMPactivePathTimeout);
2600 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2601 cur_params.dot11MeshHWMPpreqMinInterval);
2602 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2603 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2604 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2605 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2606 nla_nest_end(msg, pinfoattr);
2607 genlmsg_end(msg, hdr);
4c476991 2608 return genlmsg_reply(msg, info);
93da9cc1 2609
3b85875a 2610 nla_put_failure:
93da9cc1 2611 genlmsg_cancel(msg, hdr);
d080e275 2612 nlmsg_free(msg);
4c476991 2613 return -ENOBUFS;
93da9cc1 2614}
2615
2616#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2617do {\
2618 if (table[attr_num]) {\
2619 cfg.param = nla_fn(table[attr_num]); \
2620 mask |= (1 << (attr_num - 1)); \
2621 } \
2622} while (0);\
2623
b54452b0 2624static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2625 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2626 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2627 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2628 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2629 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2630 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2631 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2632 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2633
2634 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2635 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2636 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2637 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2638 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2639 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2640};
2641
2642static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2643{
93da9cc1 2644 u32 mask;
4c476991
JB		 2645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2646 struct net_device *dev = info->user_ptr[1];
93da9cc1 2647 struct mesh_config cfg;
2648 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2649 struct nlattr *parent_attr;
2650
2651 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2652 if (!parent_attr)
2653 return -EINVAL;
2654 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2655 parent_attr, nl80211_meshconf_params_policy))
2656 return -EINVAL;
2657
4c476991
JB		 2658 if (!rdev->ops->set_mesh_params)
2659 return -EOPNOTSUPP;
f3f92586 2660
93da9cc1 2661 /* This makes sure that there aren't more than 32 mesh config
2662 * parameters (otherwise our bitfield scheme would not work.) */
2663 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2664
2665 /* Fill in the params struct */
2666 mask = 0;
2667 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2668 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2669 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2670 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2671 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2672 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2673 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2674 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2676 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2677 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2678 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2679 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2680 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2682 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2683 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2684 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2685 nla_get_u8);
2686 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2687 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2688 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2689 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2690 nla_get_u16);
2691 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2692 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2693 nla_get_u32);
2694 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2695 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2696 nla_get_u16);
2697 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2698 dot11MeshHWMPnetDiameterTraversalTime,
2699 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2700 nla_get_u16);
63c5723b
RP		 2701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2702 dot11MeshHWMPRootMode, mask,
2703 NL80211_MESHCONF_HWMP_ROOTMODE,
2704 nla_get_u8);
93da9cc1 2705
2706 /* Apply changes */
4c476991 2707 return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2708}
2709
2710#undef FILL_IN_MESH_PARAM_IF_SET
2711
f130347c
LR		 2712static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2713{
2714 struct sk_buff *msg;
2715 void *hdr = NULL;
2716 struct nlattr *nl_reg_rules;
2717 unsigned int i;
2718 int err = -EINVAL;
2719
a1794390 2720 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2721
2722 if (!cfg80211_regdomain)
2723 goto out;
2724
fd2120ca 2725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2726 if (!msg) {
2727 err = -ENOBUFS;
2728 goto out;
2729 }
2730
2731 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2732 NL80211_CMD_GET_REG);
2733 if (!hdr)
2734 goto nla_put_failure;
2735
2736 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2737 cfg80211_regdomain->alpha2);
2738
2739 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2740 if (!nl_reg_rules)
2741 goto nla_put_failure;
2742
2743 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2744 struct nlattr *nl_reg_rule;
2745 const struct ieee80211_reg_rule *reg_rule;
2746 const struct ieee80211_freq_range *freq_range;
2747 const struct ieee80211_power_rule *power_rule;
2748
2749 reg_rule = &cfg80211_regdomain->reg_rules[i];
2750 freq_range = &reg_rule->freq_range;
2751 power_rule = &reg_rule->power_rule;
2752
2753 nl_reg_rule = nla_nest_start(msg, i);
2754 if (!nl_reg_rule)
2755 goto nla_put_failure;
2756
2757 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2758 reg_rule->flags);
2759 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2760 freq_range->start_freq_khz);
2761 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2762 freq_range->end_freq_khz);
2763 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2764 freq_range->max_bandwidth_khz);
2765 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2766 power_rule->max_antenna_gain);
2767 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2768 power_rule->max_eirp);
2769
2770 nla_nest_end(msg, nl_reg_rule);
2771 }
2772
2773 nla_nest_end(msg, nl_reg_rules);
2774
2775 genlmsg_end(msg, hdr);
134e6375 2776 err = genlmsg_reply(msg, info);
f130347c
LR		 2777 goto out;
2778
2779nla_put_failure:
2780 genlmsg_cancel(msg, hdr);
d080e275 2781 nlmsg_free(msg);
f130347c
LR		 2782 err = -EMSGSIZE;
2783out:
a1794390 2784 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2785 return err;
2786}
2787
b2e1b302
LR		 2788static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2789{
2790 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2791 struct nlattr *nl_reg_rule;
2792 char *alpha2 = NULL;
2793 int rem_reg_rules = 0, r = 0;
2794 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2795 struct ieee80211_regdomain *rd = NULL;
2796
2797 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2798 return -EINVAL;
2799
2800 if (!info->attrs[NL80211_ATTR_REG_RULES])
2801 return -EINVAL;
2802
2803 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2804
2805 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2806 rem_reg_rules) {
2807 num_rules++;
2808 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2809 return -EINVAL;
b2e1b302
LR		 2810 }
2811
61405e97
LR		 2812 mutex_lock(&cfg80211_mutex);
2813
d0e18f83
LR		 2814 if (!reg_is_valid_request(alpha2)) {
2815 r = -EINVAL;
2816 goto bad_reg;
2817 }
b2e1b302
LR		 2818
2819 size_of_regd = sizeof(struct ieee80211_regdomain) +
2820 (num_rules * sizeof(struct ieee80211_reg_rule));
2821
2822 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2823 if (!rd) {
2824 r = -ENOMEM;
2825 goto bad_reg;
2826 }
b2e1b302
LR		 2827
2828 rd->n_reg_rules = num_rules;
2829 rd->alpha2[0] = alpha2[0];
2830 rd->alpha2[1] = alpha2[1];
2831
2832 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2833 rem_reg_rules) {
2834 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2835 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2836 reg_rule_policy);
2837 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2838 if (r)
2839 goto bad_reg;
2840
2841 rule_idx++;
2842
d0e18f83
LR		 2843 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2844 r = -EINVAL;
b2e1b302 2845 goto bad_reg;
d0e18f83 2846 }
b2e1b302
LR		 2847 }
2848
2849 BUG_ON(rule_idx != num_rules);
2850
b2e1b302 2851 r = set_regdom(rd);
61405e97 2852
a1794390 2853 mutex_unlock(&cfg80211_mutex);
d0e18f83 2854
b2e1b302
LR		 2855 return r;
2856
d2372b31 2857 bad_reg:
61405e97 2858 mutex_unlock(&cfg80211_mutex);
b2e1b302 2859 kfree(rd);
d0e18f83 2860 return r;
b2e1b302
LR		 2861}
2862
83f5e2cf
JB		 2863static int validate_scan_freqs(struct nlattr *freqs)
2864{
2865 struct nlattr *attr1, *attr2;
2866 int n_channels = 0, tmp1, tmp2;
2867
2868 nla_for_each_nested(attr1, freqs, tmp1) {
2869 n_channels++;
2870 /*
2871 * Some hardware has a limited channel list for
2872 * scanning, and it is pretty much nonsensical
2873 * to scan for a channel twice, so disallow that
2874 * and don't require drivers to check that the
2875 * channel list they get isn't longer than what
2876 * they can scan, as long as they can scan all
2877 * the channels they registered at once.
2878 */
2879 nla_for_each_nested(attr2, freqs, tmp2)
2880 if (attr1 != attr2 &&
2881 nla_get_u32(attr1) == nla_get_u32(attr2))
2882 return 0;
2883 }
2884
2885 return n_channels;
2886}
2887
2a519311
JB		 2888static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2889{
4c476991
JB		 2890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2891 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2892 struct cfg80211_scan_request *request;
2893 struct cfg80211_ssid *ssid;
2894 struct ieee80211_channel *channel;
2895 struct nlattr *attr;
2896 struct wiphy *wiphy;
83f5e2cf 2897 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2898 enum ieee80211_band band;
70692ad2 2899 size_t ie_len;
2a519311 2900
f4a11bb0
JB		 2901 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2902 return -EINVAL;
2903
79c97e97 2904 wiphy = &rdev->wiphy;
2a519311 2905
4c476991
JB		 2906 if (!rdev->ops->scan)
2907 return -EOPNOTSUPP;
2a519311 2908
4c476991
JB		 2909 if (rdev->scan_req)
2910 return -EBUSY;
2a519311
JB		 2911
2912 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2913 n_channels = validate_scan_freqs(
2914 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2915 if (!n_channels)
2916 return -EINVAL;
2a519311 2917 } else {
83f5e2cf
JB		 2918 n_channels = 0;
2919
2a519311
JB		 2920 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2921 if (wiphy->bands[band])
2922 n_channels += wiphy->bands[band]->n_channels;
2923 }
2924
2925 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2926 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2927 n_ssids++;
2928
4c476991
JB		 2929 if (n_ssids > wiphy->max_scan_ssids)
2930 return -EINVAL;
2a519311 2931
70692ad2
JM		 2932 if (info->attrs[NL80211_ATTR_IE])
2933 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2934 else
2935 ie_len = 0;
2936
4c476991
JB		 2937 if (ie_len > wiphy->max_scan_ie_len)
2938 return -EINVAL;
18a83659 2939
2a519311
JB		 2940 request = kzalloc(sizeof(*request)
2941 + sizeof(*ssid) * n_ssids
70692ad2
JM		 2942 + sizeof(channel) * n_channels
2943 + ie_len, GFP_KERNEL);
4c476991
JB		 2944 if (!request)
2945 return -ENOMEM;
2a519311 2946
2a519311 2947 if (n_ssids)
5ba63533 2948 request->ssids = (void *)&request->channels[n_channels];
2a519311 2949 request->n_ssids = n_ssids;
70692ad2
JM		 2950 if (ie_len) {
2951 if (request->ssids)
2952 request->ie = (void *)(request->ssids + n_ssids);
2953 else
2954 request->ie = (void *)(request->channels + n_channels);
2955 }
2a519311 2956
584991dc 2957 i = 0;
2a519311
JB		 2958 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2959 /* user specified, bail out if channel not found */
2a519311 2960 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 2961 struct ieee80211_channel *chan;
2962
2963 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2964
2965 if (!chan) {
2a519311
JB		 2966 err = -EINVAL;
2967 goto out_free;
2968 }
584991dc
JB		 2969
2970 /* ignore disabled channels */
2971 if (chan->flags & IEEE80211_CHAN_DISABLED)
2972 continue;
2973
2974 request->channels[i] = chan;
2a519311
JB		 2975 i++;
2976 }
2977 } else {
2978 /* all channels */
2a519311
JB		 2979 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2980 int j;
2981 if (!wiphy->bands[band])
2982 continue;
2983 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 2984 struct ieee80211_channel *chan;
2985
2986 chan = &wiphy->bands[band]->channels[j];
2987
2988 if (chan->flags & IEEE80211_CHAN_DISABLED)
2989 continue;
2990
2991 request->channels[i] = chan;
2a519311
JB		 2992 i++;
2993 }
2994 }
2995 }
2996
584991dc
JB		 2997 if (!i) {
2998 err = -EINVAL;
2999 goto out_free;
3000 }
3001
3002 request->n_channels = i;
3003
2a519311
JB		 3004 i = 0;
3005 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3006 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3007 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3008 err = -EINVAL;
3009 goto out_free;
3010 }
3011 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3012 request->ssids[i].ssid_len = nla_len(attr);
3013 i++;
3014 }
3015 }
3016
70692ad2
JM		 3017 if (info->attrs[NL80211_ATTR_IE]) {
3018 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3019 memcpy((void *)request->ie,
3020 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3021 request->ie_len);
3022 }
3023
463d0183 3024 request->dev = dev;
79c97e97 3025 request->wiphy = &rdev->wiphy;
2a519311 3026
79c97e97
JB		 3027 rdev->scan_req = request;
3028 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3029
463d0183 3030 if (!err) {
79c97e97 3031 nl80211_send_scan_start(rdev, dev);
463d0183 3032 dev_hold(dev);
4c476991 3033 } else {
2a519311 3034 out_free:
79c97e97 3035 rdev->scan_req = NULL;
2a519311
JB		 3036 kfree(request);
3037 }
3b85875a 3038
2a519311
JB		 3039 return err;
3040}
3041
3042static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3043 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3044 struct wireless_dev *wdev,
3045 struct cfg80211_internal_bss *intbss)
2a519311 3046{
48ab905d 3047 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3048 void *hdr;
3049 struct nlattr *bss;
48ab905d
JB		 3050 int i;
3051
3052 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3053
3054 hdr = nl80211hdr_put(msg, pid, seq, flags,
3055 NL80211_CMD_NEW_SCAN_RESULTS);
3056 if (!hdr)
3057 return -1;
3058
f5ea9120 3059 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3060 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3061
3062 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3063 if (!bss)
3064 goto nla_put_failure;
3065 if (!is_zero_ether_addr(res->bssid))
3066 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3067 if (res->information_elements && res->len_information_elements)
3068 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3069 res->len_information_elements,
3070 res->information_elements);
34a6eddb
JM		 3071 if (res->beacon_ies && res->len_beacon_ies &&
3072 res->beacon_ies != res->information_elements)
3073 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3074 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3075 if (res->tsf)
3076 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3077 if (res->beacon_interval)
3078 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3079 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3080 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3081 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3082 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3083
77965c97 3084 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3085 case CFG80211_SIGNAL_TYPE_MBM:
3086 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3087 break;
3088 case CFG80211_SIGNAL_TYPE_UNSPEC:
3089 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3090 break;
3091 default:
3092 break;
3093 }
3094
48ab905d 3095 switch (wdev->iftype) {
074ac8df 3096 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3097 case NL80211_IFTYPE_STATION:
3098 if (intbss == wdev->current_bss)
3099 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3100 NL80211_BSS_STATUS_ASSOCIATED);
3101 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3102 if (intbss != wdev->auth_bsses[i])
3103 continue;
3104 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3105 NL80211_BSS_STATUS_AUTHENTICATED);
3106 break;
3107 }
3108 break;
3109 case NL80211_IFTYPE_ADHOC:
3110 if (intbss == wdev->current_bss)
3111 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3112 NL80211_BSS_STATUS_IBSS_JOINED);
3113 break;
3114 default:
3115 break;
3116 }
3117
2a519311
JB		 3118 nla_nest_end(msg, bss);
3119
3120 return genlmsg_end(msg, hdr);
3121
3122 nla_put_failure:
3123 genlmsg_cancel(msg, hdr);
3124 return -EMSGSIZE;
3125}
3126
3127static int nl80211_dump_scan(struct sk_buff *skb,
3128 struct netlink_callback *cb)
3129{
48ab905d
JB		 3130 struct cfg80211_registered_device *rdev;
3131 struct net_device *dev;
2a519311 3132 struct cfg80211_internal_bss *scan;
48ab905d 3133 struct wireless_dev *wdev;
2a519311
JB		 3134 int start = cb->args[1], idx = 0;
3135 int err;
3136
67748893
JB		 3137 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3138 if (err)
3139 return err;
2a519311 3140
48ab905d 3141 wdev = dev->ieee80211_ptr;
2a519311 3142
48ab905d
JB		 3143 wdev_lock(wdev);
3144 spin_lock_bh(&rdev->bss_lock);
3145 cfg80211_bss_expire(rdev);
3146
3147 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3148 if (++idx <= start)
3149 continue;
3150 if (nl80211_send_bss(skb,
3151 NETLINK_CB(cb->skb).pid,
3152 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3153 rdev, wdev, scan) < 0) {
2a519311 3154 idx--;
67748893 3155 break;
2a519311
JB		 3156 }
3157 }
3158
48ab905d
JB		 3159 spin_unlock_bh(&rdev->bss_lock);
3160 wdev_unlock(wdev);
2a519311
JB		 3161
3162 cb->args[1] = idx;
67748893 3163 nl80211_finish_netdev_dump(rdev);
2a519311 3164
67748893 3165 return skb->len;
2a519311
JB		 3166}
3167
61fa713c
HS		 3168static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3169 int flags, struct net_device *dev,
3170 struct survey_info *survey)
3171{
3172 void *hdr;
3173 struct nlattr *infoattr;
3174
3175 /* Survey without a channel doesn't make sense */
3176 if (!survey->channel)
3177 return -EINVAL;
3178
3179 hdr = nl80211hdr_put(msg, pid, seq, flags,
3180 NL80211_CMD_NEW_SURVEY_RESULTS);
3181 if (!hdr)
3182 return -ENOMEM;
3183
3184 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3185
3186 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3187 if (!infoattr)
3188 goto nla_put_failure;
3189
3190 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3191 survey->channel->center_freq);
3192 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3193 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3194 survey->noise);
17e5a808
FF		 3195 if (survey->filled & SURVEY_INFO_IN_USE)
3196 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3197 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3198 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3199 survey->channel_time);
3200 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3201 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3202 survey->channel_time_busy);
3203 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3204 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3205 survey->channel_time_ext_busy);
3206 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3207 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3208 survey->channel_time_rx);
3209 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3210 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3211 survey->channel_time_tx);
61fa713c
HS		 3212
3213 nla_nest_end(msg, infoattr);
3214
3215 return genlmsg_end(msg, hdr);
3216
3217 nla_put_failure:
3218 genlmsg_cancel(msg, hdr);
3219 return -EMSGSIZE;
3220}
3221
3222static int nl80211_dump_survey(struct sk_buff *skb,
3223 struct netlink_callback *cb)
3224{
3225 struct survey_info survey;
3226 struct cfg80211_registered_device *dev;
3227 struct net_device *netdev;
61fa713c
HS		 3228 int survey_idx = cb->args[1];
3229 int res;
3230
67748893
JB		 3231 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3232 if (res)
3233 return res;
61fa713c
HS		 3234
3235 if (!dev->ops->dump_survey) {
3236 res = -EOPNOTSUPP;
3237 goto out_err;
3238 }
3239
3240 while (1) {
3241 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3242 &survey);
3243 if (res == -ENOENT)
3244 break;
3245 if (res)
3246 goto out_err;
3247
3248 if (nl80211_send_survey(skb,
3249 NETLINK_CB(cb->skb).pid,
3250 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3251 netdev,
3252 &survey) < 0)
3253 goto out;
3254 survey_idx++;
3255 }
3256
3257 out:
3258 cb->args[1] = survey_idx;
3259 res = skb->len;
3260 out_err:
67748893 3261 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3262 return res;
3263}
3264
255e737e
JM		 3265static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3266{
b23aa676
SO		 3267 return auth_type <= NL80211_AUTHTYPE_MAX;
3268}
3269
3270static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3271{
3272 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3273 NL80211_WPA_VERSION_2));
3274}
3275
3276static bool nl80211_valid_akm_suite(u32 akm)
3277{
3278 return akm == WLAN_AKM_SUITE_8021X ||
3279 akm == WLAN_AKM_SUITE_PSK;
3280}
3281
3282static bool nl80211_valid_cipher_suite(u32 cipher)
3283{
3284 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3285 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3286 cipher == WLAN_CIPHER_SUITE_TKIP ||
3287 cipher == WLAN_CIPHER_SUITE_CCMP ||
3288 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3289}
3290
b23aa676 3291
636a5d36
JM		 3292static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3293{
4c476991
JB		 3294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3295 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3296 struct ieee80211_channel *chan;
3297 const u8 *bssid, *ssid, *ie = NULL;
3298 int err, ssid_len, ie_len = 0;
3299 enum nl80211_auth_type auth_type;
fffd0934 3300 struct key_parse key;
d5cdfacb 3301 bool local_state_change;
636a5d36 3302
f4a11bb0
JB		 3303 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3304 return -EINVAL;
3305
3306 if (!info->attrs[NL80211_ATTR_MAC])
3307 return -EINVAL;
3308
1778092e
JM		 3309 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3310 return -EINVAL;
3311
19957bb3
JB		 3312 if (!info->attrs[NL80211_ATTR_SSID])
3313 return -EINVAL;
3314
3315 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3316 return -EINVAL;
3317
fffd0934
JB		 3318 err = nl80211_parse_key(info, &key);
3319 if (err)
3320 return err;
3321
3322 if (key.idx >= 0) {
e31b8213
JB		 3323 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3324 return -EINVAL;
fffd0934
JB		 3325 if (!key.p.key || !key.p.key_len)
3326 return -EINVAL;
3327 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3328 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3329 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3330 key.p.key_len != WLAN_KEY_LEN_WEP104))
3331 return -EINVAL;
3332 if (key.idx > 4)
3333 return -EINVAL;
3334 } else {
3335 key.p.key_len = 0;
3336 key.p.key = NULL;
3337 }
3338
afea0b7a
JB		 3339 if (key.idx >= 0) {
3340 int i;
3341 bool ok = false;
3342 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3343 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3344 ok = true;
3345 break;
3346 }
3347 }
4c476991
JB		 3348 if (!ok)
3349 return -EINVAL;
afea0b7a
JB		 3350 }
3351
4c476991
JB		 3352 if (!rdev->ops->auth)
3353 return -EOPNOTSUPP;
636a5d36 3354
074ac8df 3355 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3356 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3357 return -EOPNOTSUPP;
eec60b03 3358
19957bb3 3359 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3360 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3361 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3362 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3363 return -EINVAL;
636a5d36 3364
19957bb3
JB		 3365 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3366 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3367
3368 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3369 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3370 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3371 }
3372
19957bb3 3373 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3374 if (!nl80211_valid_auth_type(auth_type))
3375 return -EINVAL;
636a5d36 3376
d5cdfacb
JM		 3377 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3378
4c476991
JB		 3379 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3380 ssid, ssid_len, ie, ie_len,
3381 key.p.key, key.p.key_len, key.idx,
3382 local_state_change);
636a5d36
JM		 3383}
3384
c0692b8f
JB		 3385static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3386 struct genl_info *info,
3dc27d25
JB		 3387 struct cfg80211_crypto_settings *settings,
3388 int cipher_limit)
b23aa676 3389{
c0b2bbd8
JB		 3390 memset(settings, 0, sizeof(*settings));
3391
b23aa676
SO		 3392 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3393
c0692b8f
JB		 3394 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3395 u16 proto;
3396 proto = nla_get_u16(
3397 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3398 settings->control_port_ethertype = cpu_to_be16(proto);
3399 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3400 proto != ETH_P_PAE)
3401 return -EINVAL;
3402 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3403 settings->control_port_no_encrypt = true;
3404 } else
3405 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3406
b23aa676
SO		 3407 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3408 void *data;
3409 int len, i;
3410
3411 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3412 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3413 settings->n_ciphers_pairwise = len / sizeof(u32);
3414
3415 if (len % sizeof(u32))
3416 return -EINVAL;
3417
3dc27d25 3418 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3419 return -EINVAL;
3420
3421 memcpy(settings->ciphers_pairwise, data, len);
3422
3423 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3424 if (!nl80211_valid_cipher_suite(
3425 settings->ciphers_pairwise[i]))
3426 return -EINVAL;
3427 }
3428
3429 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3430 settings->cipher_group =
3431 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3432 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3433 return -EINVAL;
3434 }
3435
3436 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3437 settings->wpa_versions =
3438 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3439 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3440 return -EINVAL;
3441 }
3442
3443 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3444 void *data;
3445 int len, i;
3446
3447 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3448 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3449 settings->n_akm_suites = len / sizeof(u32);
3450
3451 if (len % sizeof(u32))
3452 return -EINVAL;
3453
3454 memcpy(settings->akm_suites, data, len);
3455
3456 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3457 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3458 return -EINVAL;
3459 }
3460
3461 return 0;
3462}
3463
636a5d36
JM		 3464static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3465{
4c476991
JB		 3466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3467 struct net_device *dev = info->user_ptr[1];
19957bb3 3468 struct cfg80211_crypto_settings crypto;
f444de05 3469 struct ieee80211_channel *chan;
3e5d7649 3470 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3471 int err, ssid_len, ie_len = 0;
3472 bool use_mfp = false;
636a5d36 3473
f4a11bb0
JB		 3474 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3475 return -EINVAL;
3476
3477 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3478 !info->attrs[NL80211_ATTR_SSID] ||
3479 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3480 return -EINVAL;
3481
4c476991
JB		 3482 if (!rdev->ops->assoc)
3483 return -EOPNOTSUPP;
636a5d36 3484
074ac8df 3485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3486 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3487 return -EOPNOTSUPP;
eec60b03 3488
19957bb3 3489 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3490
19957bb3
JB		 3491 chan = ieee80211_get_channel(&rdev->wiphy,
3492 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3493 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3494 return -EINVAL;
636a5d36 3495
19957bb3
JB		 3496 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3497 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3498
3499 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3500 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3501 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3502 }
3503
dc6382ce 3504 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3505 enum nl80211_mfp mfp =
dc6382ce 3506 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3507 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3508 use_mfp = true;
4c476991
JB		 3509 else if (mfp != NL80211_MFP_NO)
3510 return -EINVAL;
dc6382ce
JM		 3511 }
3512
3e5d7649
JB		 3513 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3514 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3515
c0692b8f 3516 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3517 if (!err)
3e5d7649
JB		 3518 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3519 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3520 &crypto);
636a5d36 3521
636a5d36
JM		 3522 return err;
3523}
3524
3525static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3526{
4c476991
JB		 3527 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3528 struct net_device *dev = info->user_ptr[1];
19957bb3 3529 const u8 *ie = NULL, *bssid;
4c476991 3530 int ie_len = 0;
19957bb3 3531 u16 reason_code;
d5cdfacb 3532 bool local_state_change;
636a5d36 3533
f4a11bb0
JB		 3534 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3535 return -EINVAL;
3536
3537 if (!info->attrs[NL80211_ATTR_MAC])
3538 return -EINVAL;
3539
3540 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3541 return -EINVAL;
3542
4c476991
JB		 3543 if (!rdev->ops->deauth)
3544 return -EOPNOTSUPP;
636a5d36 3545
074ac8df 3546 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3547 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3548 return -EOPNOTSUPP;
eec60b03 3549
19957bb3 3550 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3551
19957bb3
JB		 3552 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3553 if (reason_code == 0) {
f4a11bb0 3554 /* Reason Code 0 is reserved */
4c476991 3555 return -EINVAL;
255e737e 3556 }
636a5d36
JM		 3557
3558 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3559 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3560 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3561 }
3562
d5cdfacb
JM		 3563 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3564
4c476991
JB		 3565 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3566 local_state_change);
636a5d36
JM		 3567}
3568
3569static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3570{
4c476991
JB		 3571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3572 struct net_device *dev = info->user_ptr[1];
19957bb3 3573 const u8 *ie = NULL, *bssid;
4c476991 3574 int ie_len = 0;
19957bb3 3575 u16 reason_code;
d5cdfacb 3576 bool local_state_change;
636a5d36 3577
f4a11bb0
JB		 3578 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3579 return -EINVAL;
3580
3581 if (!info->attrs[NL80211_ATTR_MAC])
3582 return -EINVAL;
3583
3584 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3585 return -EINVAL;
3586
4c476991
JB		 3587 if (!rdev->ops->disassoc)
3588 return -EOPNOTSUPP;
636a5d36 3589
074ac8df 3590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3592 return -EOPNOTSUPP;
eec60b03 3593
19957bb3 3594 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3595
19957bb3
JB		 3596 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3597 if (reason_code == 0) {
f4a11bb0 3598 /* Reason Code 0 is reserved */
4c476991 3599 return -EINVAL;
255e737e 3600 }
636a5d36
JM		 3601
3602 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3603 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3604 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3605 }
3606
d5cdfacb
JM		 3607 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3608
4c476991
JB		 3609 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3610 local_state_change);
636a5d36
JM		 3611}
3612
dd5b4cc7
FF		 3613static bool
3614nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3615 int mcast_rate[IEEE80211_NUM_BANDS],
3616 int rateval)
3617{
3618 struct wiphy *wiphy = &rdev->wiphy;
3619 bool found = false;
3620 int band, i;
3621
3622 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3623 struct ieee80211_supported_band *sband;
3624
3625 sband = wiphy->bands[band];
3626 if (!sband)
3627 continue;
3628
3629 for (i = 0; i < sband->n_bitrates; i++) {
3630 if (sband->bitrates[i].bitrate == rateval) {
3631 mcast_rate[band] = i + 1;
3632 found = true;
3633 break;
3634 }
3635 }
3636 }
3637
3638 return found;
3639}
3640
04a773ad
JB		 3641static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3642{
4c476991
JB		 3643 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3644 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3645 struct cfg80211_ibss_params ibss;
3646 struct wiphy *wiphy;
fffd0934 3647 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3648 int err;
3649
8e30bc55
JB		 3650 memset(&ibss, 0, sizeof(ibss));
3651
04a773ad
JB		 3652 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3653 return -EINVAL;
3654
3655 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3656 !info->attrs[NL80211_ATTR_SSID] ||
3657 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3658 return -EINVAL;
3659
8e30bc55
JB		 3660 ibss.beacon_interval = 100;
3661
3662 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3663 ibss.beacon_interval =
3664 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3665 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3666 return -EINVAL;
3667 }
3668
4c476991
JB		 3669 if (!rdev->ops->join_ibss)
3670 return -EOPNOTSUPP;
04a773ad 3671
4c476991
JB		 3672 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3673 return -EOPNOTSUPP;
04a773ad 3674
79c97e97 3675 wiphy = &rdev->wiphy;
04a773ad
JB		 3676
3677 if (info->attrs[NL80211_ATTR_MAC])
3678 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3679 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3680 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3681
3682 if (info->attrs[NL80211_ATTR_IE]) {
3683 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3684 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3685 }
3686
3687 ibss.channel = ieee80211_get_channel(wiphy,
3688 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3689 if (!ibss.channel ||
3690 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3691 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3692 return -EINVAL;
04a773ad
JB		 3693
3694 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3695 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3696
fbd2c8dc
TP		 3697 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3698 u8 *rates =
3699 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3700 int n_rates =
3701 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3702 struct ieee80211_supported_band *sband =
3703 wiphy->bands[ibss.channel->band];
3704 int i, j;
3705
4c476991
JB		 3706 if (n_rates == 0)
3707 return -EINVAL;
fbd2c8dc
TP		 3708
3709 for (i = 0; i < n_rates; i++) {
3710 int rate = (rates[i] & 0x7f) * 5;
3711 bool found = false;
3712
3713 for (j = 0; j < sband->n_bitrates; j++) {
3714 if (sband->bitrates[j].bitrate == rate) {
3715 found = true;
3716 ibss.basic_rates |= BIT(j);
3717 break;
3718 }
3719 }
4c476991
JB		 3720 if (!found)
3721 return -EINVAL;
fbd2c8dc 3722 }
fbd2c8dc 3723 }
dd5b4cc7
FF		 3724
3725 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3726 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3727 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3728 return -EINVAL;
fbd2c8dc 3729
4c476991
JB		 3730 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3731 connkeys = nl80211_parse_connkeys(rdev,
3732 info->attrs[NL80211_ATTR_KEYS]);
3733 if (IS_ERR(connkeys))
3734 return PTR_ERR(connkeys);
3735 }
04a773ad 3736
4c476991 3737 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3738 if (err)
3739 kfree(connkeys);
04a773ad
JB		 3740 return err;
3741}
3742
3743static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3744{
4c476991
JB		 3745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3746 struct net_device *dev = info->user_ptr[1];
04a773ad 3747
4c476991
JB		 3748 if (!rdev->ops->leave_ibss)
3749 return -EOPNOTSUPP;
04a773ad 3750
4c476991
JB		 3751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3752 return -EOPNOTSUPP;
04a773ad 3753
4c476991 3754 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3755}
3756
aff89a9b
JB		 3757#ifdef CONFIG_NL80211_TESTMODE
3758static struct genl_multicast_group nl80211_testmode_mcgrp = {
3759 .name = "testmode",
3760};
3761
3762static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3763{
4c476991 3764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3765 int err;
3766
3767 if (!info->attrs[NL80211_ATTR_TESTDATA])
3768 return -EINVAL;
3769
aff89a9b
JB		 3770 err = -EOPNOTSUPP;
3771 if (rdev->ops->testmode_cmd) {
3772 rdev->testmode_info = info;
3773 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3774 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3775 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3776 rdev->testmode_info = NULL;
3777 }
3778
aff89a9b
JB		 3779 return err;
3780}
3781
3782static struct sk_buff *
3783__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3784 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3785{
3786 struct sk_buff *skb;
3787 void *hdr;
3788 struct nlattr *data;
3789
3790 skb = nlmsg_new(approxlen + 100, gfp);
3791 if (!skb)
3792 return NULL;
3793
3794 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3795 if (!hdr) {
3796 kfree_skb(skb);
3797 return NULL;
3798 }
3799
3800 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3801 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3802
3803 ((void **)skb->cb)[0] = rdev;
3804 ((void **)skb->cb)[1] = hdr;
3805 ((void **)skb->cb)[2] = data;
3806
3807 return skb;
3808
3809 nla_put_failure:
3810 kfree_skb(skb);
3811 return NULL;
3812}
3813
3814struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3815 int approxlen)
3816{
3817 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3818
3819 if (WARN_ON(!rdev->testmode_info))
3820 return NULL;
3821
3822 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3823 rdev->testmode_info->snd_pid,
3824 rdev->testmode_info->snd_seq,
3825 GFP_KERNEL);
3826}
3827EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3828
3829int cfg80211_testmode_reply(struct sk_buff *skb)
3830{
3831 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3832 void *hdr = ((void **)skb->cb)[1];
3833 struct nlattr *data = ((void **)skb->cb)[2];
3834
3835 if (WARN_ON(!rdev->testmode_info)) {
3836 kfree_skb(skb);
3837 return -EINVAL;
3838 }
3839
3840 nla_nest_end(skb, data);
3841 genlmsg_end(skb, hdr);
3842 return genlmsg_reply(skb, rdev->testmode_info);
3843}
3844EXPORT_SYMBOL(cfg80211_testmode_reply);
3845
3846struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3847 int approxlen, gfp_t gfp)
3848{
3849 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3850
3851 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3852}
3853EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3854
3855void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3856{
3857 void *hdr = ((void **)skb->cb)[1];
3858 struct nlattr *data = ((void **)skb->cb)[2];
3859
3860 nla_nest_end(skb, data);
3861 genlmsg_end(skb, hdr);
3862 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3863}
3864EXPORT_SYMBOL(cfg80211_testmode_event);
3865#endif
3866
b23aa676
SO		 3867static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3868{
4c476991
JB		 3869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3870 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3871 struct cfg80211_connect_params connect;
3872 struct wiphy *wiphy;
fffd0934 3873 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3874 int err;
3875
3876 memset(&connect, 0, sizeof(connect));
3877
3878 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3879 return -EINVAL;
3880
3881 if (!info->attrs[NL80211_ATTR_SSID] ||
3882 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3883 return -EINVAL;
3884
3885 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3886 connect.auth_type =
3887 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3888 if (!nl80211_valid_auth_type(connect.auth_type))
3889 return -EINVAL;
3890 } else
3891 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3892
3893 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3894
c0692b8f 3895 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3896 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3897 if (err)
3898 return err;
b23aa676 3899
074ac8df 3900 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3901 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3902 return -EOPNOTSUPP;
b23aa676 3903
79c97e97 3904 wiphy = &rdev->wiphy;
b23aa676 3905
b23aa676
SO		 3906 if (info->attrs[NL80211_ATTR_MAC])
3907 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3908 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3909 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3910
3911 if (info->attrs[NL80211_ATTR_IE]) {
3912 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3913 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3914 }
3915
3916 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3917 connect.channel =
3918 ieee80211_get_channel(wiphy,
3919 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3920 if (!connect.channel ||
4c476991
JB		 3921 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3922 return -EINVAL;
b23aa676
SO		 3923 }
3924
fffd0934
JB		 3925 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3926 connkeys = nl80211_parse_connkeys(rdev,
3927 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3928 if (IS_ERR(connkeys))
3929 return PTR_ERR(connkeys);
fffd0934
JB		 3930 }
3931
3932 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 3933 if (err)
3934 kfree(connkeys);
b23aa676
SO		 3935 return err;
3936}
3937
3938static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3939{
4c476991
JB		 3940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3941 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3942 u16 reason;
3943
3944 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3945 reason = WLAN_REASON_DEAUTH_LEAVING;
3946 else
3947 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3948
3949 if (reason == 0)
3950 return -EINVAL;
3951
074ac8df 3952 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3953 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3954 return -EOPNOTSUPP;
b23aa676 3955
4c476991 3956 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 3957}
3958
463d0183
JB		 3959static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
3960{
4c476991 3961 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 3962 struct net *net;
3963 int err;
3964 u32 pid;
3965
3966 if (!info->attrs[NL80211_ATTR_PID])
3967 return -EINVAL;
3968
3969 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
3970
463d0183 3971 net = get_net_ns_by_pid(pid);
4c476991
JB		 3972 if (IS_ERR(net))
3973 return PTR_ERR(net);
463d0183
JB		 3974
3975 err = 0;
3976
3977 /* check if anything to do */
4c476991
JB		 3978 if (!net_eq(wiphy_net(&rdev->wiphy), net))
3979 err = cfg80211_switch_netns(rdev, net);
463d0183 3980
463d0183 3981 put_net(net);
463d0183
JB		 3982 return err;
3983}
3984
67fbb16b
SO		 3985static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
3986{
4c476991 3987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 3988 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
3989 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 3990 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 3991 struct cfg80211_pmksa pmksa;
3992
3993 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
3994
3995 if (!info->attrs[NL80211_ATTR_MAC])
3996 return -EINVAL;
3997
3998 if (!info->attrs[NL80211_ATTR_PMKID])
3999 return -EINVAL;
4000
67fbb16b
SO		 4001 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4002 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4003
074ac8df 4004 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4005 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4006 return -EOPNOTSUPP;
67fbb16b
SO		 4007
4008 switch (info->genlhdr->cmd) {
4009 case NL80211_CMD_SET_PMKSA:
4010 rdev_ops = rdev->ops->set_pmksa;
4011 break;
4012 case NL80211_CMD_DEL_PMKSA:
4013 rdev_ops = rdev->ops->del_pmksa;
4014 break;
4015 default:
4016 WARN_ON(1);
4017 break;
4018 }
4019
4c476991
JB		 4020 if (!rdev_ops)
4021 return -EOPNOTSUPP;
67fbb16b 4022
4c476991 4023 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4024}
4025
4026static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4027{
4c476991
JB		 4028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4029 struct net_device *dev = info->user_ptr[1];
67fbb16b 4030
074ac8df 4031 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4032 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4033 return -EOPNOTSUPP;
67fbb16b 4034
4c476991
JB		 4035 if (!rdev->ops->flush_pmksa)
4036 return -EOPNOTSUPP;
67fbb16b 4037
4c476991 4038 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4039}
4040
9588bbd5
JM		 4041static int nl80211_remain_on_channel(struct sk_buff *skb,
4042 struct genl_info *info)
4043{
4c476991
JB		 4044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4045 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4046 struct ieee80211_channel *chan;
4047 struct sk_buff *msg;
4048 void *hdr;
4049 u64 cookie;
4050 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4051 u32 freq, duration;
4052 int err;
4053
4054 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4055 !info->attrs[NL80211_ATTR_DURATION])
4056 return -EINVAL;
4057
4058 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4059
4060 /*
4061 * We should be on that channel for at least one jiffie,
4062 * and more than 5 seconds seems excessive.
4063 */
4064 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4065 return -EINVAL;
4066
4c476991
JB		 4067 if (!rdev->ops->remain_on_channel)
4068 return -EOPNOTSUPP;
9588bbd5 4069
9588bbd5
JM		 4070 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4071 channel_type = nla_get_u32(
4072 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4073 if (channel_type != NL80211_CHAN_NO_HT &&
4074 channel_type != NL80211_CHAN_HT20 &&
4075 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4076 channel_type != NL80211_CHAN_HT40MINUS)
4077 return -EINVAL;
9588bbd5
JM		 4078 }
4079
4080 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4081 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4082 if (chan == NULL)
4083 return -EINVAL;
9588bbd5
JM		 4084
4085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4086 if (!msg)
4087 return -ENOMEM;
9588bbd5
JM		 4088
4089 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4090 NL80211_CMD_REMAIN_ON_CHANNEL);
4091
4092 if (IS_ERR(hdr)) {
4093 err = PTR_ERR(hdr);
4094 goto free_msg;
4095 }
4096
4097 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4098 channel_type, duration, &cookie);
4099
4100 if (err)
4101 goto free_msg;
4102
4103 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4104
4105 genlmsg_end(msg, hdr);
4c476991
JB		 4106
4107 return genlmsg_reply(msg, info);
9588bbd5
JM		 4108
4109 nla_put_failure:
4110 err = -ENOBUFS;
4111 free_msg:
4112 nlmsg_free(msg);
9588bbd5
JM		 4113 return err;
4114}
4115
4116static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4117 struct genl_info *info)
4118{
4c476991
JB		 4119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4120 struct net_device *dev = info->user_ptr[1];
9588bbd5 4121 u64 cookie;
9588bbd5
JM		 4122
4123 if (!info->attrs[NL80211_ATTR_COOKIE])
4124 return -EINVAL;
4125
4c476991
JB		 4126 if (!rdev->ops->cancel_remain_on_channel)
4127 return -EOPNOTSUPP;
9588bbd5 4128
9588bbd5
JM		 4129 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4130
4c476991 4131 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4132}
4133
13ae75b1
JM		 4134static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4135 u8 *rates, u8 rates_len)
4136{
4137 u8 i;
4138 u32 mask = 0;
4139
4140 for (i = 0; i < rates_len; i++) {
4141 int rate = (rates[i] & 0x7f) * 5;
4142 int ridx;
4143 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4144 struct ieee80211_rate *srate =
4145 &sband->bitrates[ridx];
4146 if (rate == srate->bitrate) {
4147 mask |= 1 << ridx;
4148 break;
4149 }
4150 }
4151 if (ridx == sband->n_bitrates)
4152 return 0; /* rate not found */
4153 }
4154
4155 return mask;
4156}
4157
b54452b0 4158static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4159 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4160 .len = NL80211_MAX_SUPP_RATES },
4161};
4162
4163static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4164 struct genl_info *info)
4165{
4166 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4168 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4169 int rem, i;
4170 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4171 struct nlattr *tx_rates;
4172 struct ieee80211_supported_band *sband;
4173
4174 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4175 return -EINVAL;
4176
4c476991
JB		 4177 if (!rdev->ops->set_bitrate_mask)
4178 return -EOPNOTSUPP;
13ae75b1
JM		 4179
4180 memset(&mask, 0, sizeof(mask));
4181 /* Default to all rates enabled */
4182 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4183 sband = rdev->wiphy.bands[i];
4184 mask.control[i].legacy =
4185 sband ? (1 << sband->n_bitrates) - 1 : 0;
4186 }
4187
4188 /*
4189 * The nested attribute uses enum nl80211_band as the index. This maps
4190 * directly to the enum ieee80211_band values used in cfg80211.
4191 */
4192 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4193 {
4194 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4195 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4196 return -EINVAL;
13ae75b1 4197 sband = rdev->wiphy.bands[band];
4c476991
JB		 4198 if (sband == NULL)
4199 return -EINVAL;
13ae75b1
JM		 4200 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4201 nla_len(tx_rates), nl80211_txattr_policy);
4202 if (tb[NL80211_TXRATE_LEGACY]) {
4203 mask.control[band].legacy = rateset_to_mask(
4204 sband,
4205 nla_data(tb[NL80211_TXRATE_LEGACY]),
4206 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4207 if (mask.control[band].legacy == 0)
4208 return -EINVAL;
13ae75b1
JM		 4209 }
4210 }
4211
4c476991 4212 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4213}
4214
2e161f78 4215static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4216{
4c476991
JB		 4217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4218 struct net_device *dev = info->user_ptr[1];
2e161f78 4219 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4220
4221 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4222 return -EINVAL;
4223
2e161f78
JB		 4224 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4225 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4226
9d38d85d 4227 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4228 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4229 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4230 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4232 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4233 return -EOPNOTSUPP;
026331c4
JM		 4234
4235 /* not much point in registering if we can't reply */
4c476991
JB		 4236 if (!rdev->ops->mgmt_tx)
4237 return -EOPNOTSUPP;
026331c4 4238
4c476991 4239 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4240 frame_type,
026331c4
JM		 4241 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4242 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4243}
4244
2e161f78 4245static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4246{
4c476991
JB		 4247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4248 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4249 struct ieee80211_channel *chan;
4250 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4251 bool channel_type_valid = false;
026331c4
JM		 4252 u32 freq;
4253 int err;
4254 void *hdr;
4255 u64 cookie;
4256 struct sk_buff *msg;
f7ca38df
JB		 4257 unsigned int wait = 0;
4258 bool offchan;
026331c4
JM		 4259
4260 if (!info->attrs[NL80211_ATTR_FRAME] ||
4261 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4262 return -EINVAL;
4263
4c476991
JB		 4264 if (!rdev->ops->mgmt_tx)
4265 return -EOPNOTSUPP;
026331c4 4266
9d38d85d 4267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4273 return -EOPNOTSUPP;
026331c4 4274
f7ca38df
JB		 4275 if (info->attrs[NL80211_ATTR_DURATION]) {
4276 if (!rdev->ops->mgmt_tx_cancel_wait)
4277 return -EINVAL;
4278 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4279 }
4280
026331c4
JM		 4281 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4282 channel_type = nla_get_u32(
4283 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4284 if (channel_type != NL80211_CHAN_NO_HT &&
4285 channel_type != NL80211_CHAN_HT20 &&
4286 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4287 channel_type != NL80211_CHAN_HT40MINUS)
4288 return -EINVAL;
252aa631 4289 channel_type_valid = true;
026331c4
JM		 4290 }
4291
f7ca38df
JB		 4292 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4293
026331c4
JM		 4294 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4295 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4296 if (chan == NULL)
4297 return -EINVAL;
026331c4
JM		 4298
4299 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4300 if (!msg)
4301 return -ENOMEM;
026331c4
JM		 4302
4303 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4304 NL80211_CMD_FRAME);
026331c4
JM		 4305
4306 if (IS_ERR(hdr)) {
4307 err = PTR_ERR(hdr);
4308 goto free_msg;
4309 }
f7ca38df
JB		 4310 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4311 channel_type_valid, wait,
2e161f78
JB		 4312 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4313 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4314 &cookie);
026331c4
JM		 4315 if (err)
4316 goto free_msg;
4317
4318 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4319
4320 genlmsg_end(msg, hdr);
4c476991 4321 return genlmsg_reply(msg, info);
026331c4
JM		 4322
4323 nla_put_failure:
4324 err = -ENOBUFS;
4325 free_msg:
4326 nlmsg_free(msg);
026331c4
JM		 4327 return err;
4328}
4329
f7ca38df
JB		 4330static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4331{
4332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4333 struct net_device *dev = info->user_ptr[1];
4334 u64 cookie;
4335
4336 if (!info->attrs[NL80211_ATTR_COOKIE])
4337 return -EINVAL;
4338
4339 if (!rdev->ops->mgmt_tx_cancel_wait)
4340 return -EOPNOTSUPP;
4341
4342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4343 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4345 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4346 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4348 return -EOPNOTSUPP;
4349
4350 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4351
4352 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4353}
4354
ffb9eb3d
KV		 4355static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4356{
4c476991 4357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4358 struct wireless_dev *wdev;
4c476991 4359 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4360 u8 ps_state;
4361 bool state;
4362 int err;
4363
4c476991
JB		 4364 if (!info->attrs[NL80211_ATTR_PS_STATE])
4365 return -EINVAL;
ffb9eb3d
KV		 4366
4367 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4368
4c476991
JB		 4369 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4370 return -EINVAL;
ffb9eb3d
KV		 4371
4372 wdev = dev->ieee80211_ptr;
4373
4c476991
JB		 4374 if (!rdev->ops->set_power_mgmt)
4375 return -EOPNOTSUPP;
ffb9eb3d
KV		 4376
4377 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4378
4379 if (state == wdev->ps)
4c476991 4380 return 0;
ffb9eb3d 4381
4c476991
JB		 4382 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4383 wdev->ps_timeout);
4384 if (!err)
4385 wdev->ps = state;
ffb9eb3d
KV		 4386 return err;
4387}
4388
4389static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4390{
4c476991 4391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4392 enum nl80211_ps_state ps_state;
4393 struct wireless_dev *wdev;
4c476991 4394 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4395 struct sk_buff *msg;
4396 void *hdr;
4397 int err;
4398
ffb9eb3d
KV		 4399 wdev = dev->ieee80211_ptr;
4400
4c476991
JB		 4401 if (!rdev->ops->set_power_mgmt)
4402 return -EOPNOTSUPP;
ffb9eb3d
KV		 4403
4404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4405 if (!msg)
4406 return -ENOMEM;
ffb9eb3d
KV		 4407
4408 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4409 NL80211_CMD_GET_POWER_SAVE);
4410 if (!hdr) {
4c476991 4411 err = -ENOBUFS;
ffb9eb3d
KV		 4412 goto free_msg;
4413 }
4414
4415 if (wdev->ps)
4416 ps_state = NL80211_PS_ENABLED;
4417 else
4418 ps_state = NL80211_PS_DISABLED;
4419
4420 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4421
4422 genlmsg_end(msg, hdr);
4c476991 4423 return genlmsg_reply(msg, info);
ffb9eb3d 4424
4c476991 4425 nla_put_failure:
ffb9eb3d 4426 err = -ENOBUFS;
4c476991 4427 free_msg:
ffb9eb3d 4428 nlmsg_free(msg);
ffb9eb3d
KV		 4429 return err;
4430}
4431
d6dc1a38
JO		 4432static struct nla_policy
4433nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4434 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4435 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4436 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4437};
4438
4439static int nl80211_set_cqm_rssi(struct genl_info *info,
4440 s32 threshold, u32 hysteresis)
4441{
4c476991 4442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4443 struct wireless_dev *wdev;
4c476991 4444 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4445
4446 if (threshold > 0)
4447 return -EINVAL;
4448
d6dc1a38
JO		 4449 wdev = dev->ieee80211_ptr;
4450
4c476991
JB		 4451 if (!rdev->ops->set_cqm_rssi_config)
4452 return -EOPNOTSUPP;
d6dc1a38 4453
074ac8df 4454 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4455 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4456 return -EOPNOTSUPP;
d6dc1a38 4457
4c476991
JB		 4458 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4459 threshold, hysteresis);
d6dc1a38
JO		 4460}
4461
4462static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4463{
4464 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4465 struct nlattr *cqm;
4466 int err;
4467
4468 cqm = info->attrs[NL80211_ATTR_CQM];
4469 if (!cqm) {
4470 err = -EINVAL;
4471 goto out;
4472 }
4473
4474 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4475 nl80211_attr_cqm_policy);
4476 if (err)
4477 goto out;
4478
4479 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4480 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4481 s32 threshold;
4482 u32 hysteresis;
4483 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4484 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4485 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4486 } else
4487 err = -EINVAL;
4488
4489out:
4490 return err;
4491}
4492
4c476991
JB		 4493#define NL80211_FLAG_NEED_WIPHY 0x01
4494#define NL80211_FLAG_NEED_NETDEV 0x02
4495#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4496#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4497#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4498 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4499
4500static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4501 struct genl_info *info)
4502{
4503 struct cfg80211_registered_device *rdev;
4504 struct net_device *dev;
4505 int err;
4506 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4507
4508 if (rtnl)
4509 rtnl_lock();
4510
4511 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4512 rdev = cfg80211_get_dev_from_info(info);
4513 if (IS_ERR(rdev)) {
4514 if (rtnl)
4515 rtnl_unlock();
4516 return PTR_ERR(rdev);
4517 }
4518 info->user_ptr[0] = rdev;
4519 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4520 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4521 if (err) {
4522 if (rtnl)
4523 rtnl_unlock();
4524 return err;
4525 }
41265714
JB		 4526 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4527 !netif_running(dev)) {
d537f5fd
JB		 4528 cfg80211_unlock_rdev(rdev);
4529 dev_put(dev);
41265714
JB		 4530 if (rtnl)
4531 rtnl_unlock();
4532 return -ENETDOWN;
4533 }
4c476991
JB		 4534 info->user_ptr[0] = rdev;
4535 info->user_ptr[1] = dev;
4536 }
4537
4538 return 0;
4539}
4540
4541static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4542 struct genl_info *info)
4543{
4544 if (info->user_ptr[0])
4545 cfg80211_unlock_rdev(info->user_ptr[0]);
4546 if (info->user_ptr[1])
4547 dev_put(info->user_ptr[1]);
4548 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4549 rtnl_unlock();
4550}
4551
55682965
JB		 4552static struct genl_ops nl80211_ops[] = {
4553 {
4554 .cmd = NL80211_CMD_GET_WIPHY,
4555 .doit = nl80211_get_wiphy,
4556 .dumpit = nl80211_dump_wiphy,
4557 .policy = nl80211_policy,
4558 /* can be retrieved by unprivileged users */
4c476991 4559 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4560 },
4561 {
4562 .cmd = NL80211_CMD_SET_WIPHY,
4563 .doit = nl80211_set_wiphy,
4564 .policy = nl80211_policy,
4565 .flags = GENL_ADMIN_PERM,
4c476991 4566 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4567 },
4568 {
4569 .cmd = NL80211_CMD_GET_INTERFACE,
4570 .doit = nl80211_get_interface,
4571 .dumpit = nl80211_dump_interface,
4572 .policy = nl80211_policy,
4573 /* can be retrieved by unprivileged users */
4c476991 4574 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4575 },
4576 {
4577 .cmd = NL80211_CMD_SET_INTERFACE,
4578 .doit = nl80211_set_interface,
4579 .policy = nl80211_policy,
4580 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4581 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4582 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4583 },
4584 {
4585 .cmd = NL80211_CMD_NEW_INTERFACE,
4586 .doit = nl80211_new_interface,
4587 .policy = nl80211_policy,
4588 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4589 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4590 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4591 },
4592 {
4593 .cmd = NL80211_CMD_DEL_INTERFACE,
4594 .doit = nl80211_del_interface,
4595 .policy = nl80211_policy,
41ade00f 4596 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4598 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4599 },
4600 {
4601 .cmd = NL80211_CMD_GET_KEY,
4602 .doit = nl80211_get_key,
4603 .policy = nl80211_policy,
4604 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4605 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4606 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4607 },
4608 {
4609 .cmd = NL80211_CMD_SET_KEY,
4610 .doit = nl80211_set_key,
4611 .policy = nl80211_policy,
4612 .flags = GENL_ADMIN_PERM,
41265714 4613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4614 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4615 },
4616 {
4617 .cmd = NL80211_CMD_NEW_KEY,
4618 .doit = nl80211_new_key,
4619 .policy = nl80211_policy,
4620 .flags = GENL_ADMIN_PERM,
41265714 4621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4622 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4623 },
4624 {
4625 .cmd = NL80211_CMD_DEL_KEY,
4626 .doit = nl80211_del_key,
4627 .policy = nl80211_policy,
55682965 4628 .flags = GENL_ADMIN_PERM,
41265714 4629 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4630 NL80211_FLAG_NEED_RTNL,
55682965 4631 },
ed1b6cc7
JB		 4632 {
4633 .cmd = NL80211_CMD_SET_BEACON,
4634 .policy = nl80211_policy,
4635 .flags = GENL_ADMIN_PERM,
4636 .doit = nl80211_addset_beacon,
4c476991
JB		 4637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4638 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4639 },
4640 {
4641 .cmd = NL80211_CMD_NEW_BEACON,
4642 .policy = nl80211_policy,
4643 .flags = GENL_ADMIN_PERM,
4644 .doit = nl80211_addset_beacon,
4c476991
JB		 4645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4646 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4647 },
4648 {
4649 .cmd = NL80211_CMD_DEL_BEACON,
4650 .policy = nl80211_policy,
4651 .flags = GENL_ADMIN_PERM,
4652 .doit = nl80211_del_beacon,
4c476991
JB		 4653 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4654 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4655 },
5727ef1b
JB		 4656 {
4657 .cmd = NL80211_CMD_GET_STATION,
4658 .doit = nl80211_get_station,
2ec600d6 4659 .dumpit = nl80211_dump_station,
5727ef1b 4660 .policy = nl80211_policy,
4c476991
JB		 4661 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4662 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4663 },
4664 {
4665 .cmd = NL80211_CMD_SET_STATION,
4666 .doit = nl80211_set_station,
4667 .policy = nl80211_policy,
4668 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4669 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4670 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4671 },
4672 {
4673 .cmd = NL80211_CMD_NEW_STATION,
4674 .doit = nl80211_new_station,
4675 .policy = nl80211_policy,
4676 .flags = GENL_ADMIN_PERM,
41265714 4677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4678 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4679 },
4680 {
4681 .cmd = NL80211_CMD_DEL_STATION,
4682 .doit = nl80211_del_station,
4683 .policy = nl80211_policy,
2ec600d6 4684 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4685 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4686 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4687 },
4688 {
4689 .cmd = NL80211_CMD_GET_MPATH,
4690 .doit = nl80211_get_mpath,
4691 .dumpit = nl80211_dump_mpath,
4692 .policy = nl80211_policy,
4693 .flags = GENL_ADMIN_PERM,
41265714 4694 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4695 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4696 },
4697 {
4698 .cmd = NL80211_CMD_SET_MPATH,
4699 .doit = nl80211_set_mpath,
4700 .policy = nl80211_policy,
4701 .flags = GENL_ADMIN_PERM,
41265714 4702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4703 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4704 },
4705 {
4706 .cmd = NL80211_CMD_NEW_MPATH,
4707 .doit = nl80211_new_mpath,
4708 .policy = nl80211_policy,
4709 .flags = GENL_ADMIN_PERM,
41265714 4710 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4711 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4712 },
4713 {
4714 .cmd = NL80211_CMD_DEL_MPATH,
4715 .doit = nl80211_del_mpath,
4716 .policy = nl80211_policy,
9f1ba906 4717 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4718 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4719 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4720 },
4721 {
4722 .cmd = NL80211_CMD_SET_BSS,
4723 .doit = nl80211_set_bss,
4724 .policy = nl80211_policy,
b2e1b302 4725 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4726 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4727 NL80211_FLAG_NEED_RTNL,
b2e1b302 4728 },
f130347c
LR		 4729 {
4730 .cmd = NL80211_CMD_GET_REG,
4731 .doit = nl80211_get_reg,
4732 .policy = nl80211_policy,
4733 /* can be retrieved by unprivileged users */
4734 },
b2e1b302
LR		 4735 {
4736 .cmd = NL80211_CMD_SET_REG,
4737 .doit = nl80211_set_reg,
4738 .policy = nl80211_policy,
4739 .flags = GENL_ADMIN_PERM,
4740 },
4741 {
4742 .cmd = NL80211_CMD_REQ_SET_REG,
4743 .doit = nl80211_req_set_reg,
4744 .policy = nl80211_policy,
93da9cc1 4745 .flags = GENL_ADMIN_PERM,
4746 },
4747 {
4748 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4749 .doit = nl80211_get_mesh_params,
4750 .policy = nl80211_policy,
4751 /* can be retrieved by unprivileged users */
4c476991
JB		 4752 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4753 NL80211_FLAG_NEED_RTNL,
93da9cc1 4754 },
4755 {
4756 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4757 .doit = nl80211_set_mesh_params,
4758 .policy = nl80211_policy,
9aed3cc1 4759 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4761 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4762 },
2a519311
JB		 4763 {
4764 .cmd = NL80211_CMD_TRIGGER_SCAN,
4765 .doit = nl80211_trigger_scan,
4766 .policy = nl80211_policy,
4767 .flags = GENL_ADMIN_PERM,
41265714 4768 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4769 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4770 },
4771 {
4772 .cmd = NL80211_CMD_GET_SCAN,
4773 .policy = nl80211_policy,
4774 .dumpit = nl80211_dump_scan,
4775 },
636a5d36
JM		 4776 {
4777 .cmd = NL80211_CMD_AUTHENTICATE,
4778 .doit = nl80211_authenticate,
4779 .policy = nl80211_policy,
4780 .flags = GENL_ADMIN_PERM,
41265714 4781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4782 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4783 },
4784 {
4785 .cmd = NL80211_CMD_ASSOCIATE,
4786 .doit = nl80211_associate,
4787 .policy = nl80211_policy,
4788 .flags = GENL_ADMIN_PERM,
41265714 4789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4790 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4791 },
4792 {
4793 .cmd = NL80211_CMD_DEAUTHENTICATE,
4794 .doit = nl80211_deauthenticate,
4795 .policy = nl80211_policy,
4796 .flags = GENL_ADMIN_PERM,
41265714 4797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4798 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4799 },
4800 {
4801 .cmd = NL80211_CMD_DISASSOCIATE,
4802 .doit = nl80211_disassociate,
4803 .policy = nl80211_policy,
4804 .flags = GENL_ADMIN_PERM,
41265714 4805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4806 NL80211_FLAG_NEED_RTNL,
636a5d36 4807 },
04a773ad
JB		 4808 {
4809 .cmd = NL80211_CMD_JOIN_IBSS,
4810 .doit = nl80211_join_ibss,
4811 .policy = nl80211_policy,
4812 .flags = GENL_ADMIN_PERM,
41265714 4813 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4814 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4815 },
4816 {
4817 .cmd = NL80211_CMD_LEAVE_IBSS,
4818 .doit = nl80211_leave_ibss,
4819 .policy = nl80211_policy,
4820 .flags = GENL_ADMIN_PERM,
41265714 4821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4822 NL80211_FLAG_NEED_RTNL,
04a773ad 4823 },
aff89a9b
JB		 4824#ifdef CONFIG_NL80211_TESTMODE
4825 {
4826 .cmd = NL80211_CMD_TESTMODE,
4827 .doit = nl80211_testmode_do,
4828 .policy = nl80211_policy,
4829 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4830 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4831 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4832 },
4833#endif
b23aa676
SO		 4834 {
4835 .cmd = NL80211_CMD_CONNECT,
4836 .doit = nl80211_connect,
4837 .policy = nl80211_policy,
4838 .flags = GENL_ADMIN_PERM,
41265714 4839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4840 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4841 },
4842 {
4843 .cmd = NL80211_CMD_DISCONNECT,
4844 .doit = nl80211_disconnect,
4845 .policy = nl80211_policy,
4846 .flags = GENL_ADMIN_PERM,
41265714 4847 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4848 NL80211_FLAG_NEED_RTNL,
b23aa676 4849 },
463d0183
JB		 4850 {
4851 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4852 .doit = nl80211_wiphy_netns,
4853 .policy = nl80211_policy,
4854 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4855 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4856 NL80211_FLAG_NEED_RTNL,
463d0183 4857 },
61fa713c
HS		 4858 {
4859 .cmd = NL80211_CMD_GET_SURVEY,
4860 .policy = nl80211_policy,
4861 .dumpit = nl80211_dump_survey,
4862 },
67fbb16b
SO		 4863 {
4864 .cmd = NL80211_CMD_SET_PMKSA,
4865 .doit = nl80211_setdel_pmksa,
4866 .policy = nl80211_policy,
4867 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4868 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4869 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4870 },
4871 {
4872 .cmd = NL80211_CMD_DEL_PMKSA,
4873 .doit = nl80211_setdel_pmksa,
4874 .policy = nl80211_policy,
4875 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4876 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4877 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4878 },
4879 {
4880 .cmd = NL80211_CMD_FLUSH_PMKSA,
4881 .doit = nl80211_flush_pmksa,
4882 .policy = nl80211_policy,
4883 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4884 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4885 NL80211_FLAG_NEED_RTNL,
67fbb16b 4886 },
9588bbd5
JM		 4887 {
4888 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4889 .doit = nl80211_remain_on_channel,
4890 .policy = nl80211_policy,
4891 .flags = GENL_ADMIN_PERM,
41265714 4892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4893 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4894 },
4895 {
4896 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4897 .doit = nl80211_cancel_remain_on_channel,
4898 .policy = nl80211_policy,
4899 .flags = GENL_ADMIN_PERM,
41265714 4900 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4901 NL80211_FLAG_NEED_RTNL,
9588bbd5 4902 },
13ae75b1
JM		 4903 {
4904 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4905 .doit = nl80211_set_tx_bitrate_mask,
4906 .policy = nl80211_policy,
4907 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4908 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4909 NL80211_FLAG_NEED_RTNL,
13ae75b1 4910 },
026331c4 4911 {
2e161f78
JB		 4912 .cmd = NL80211_CMD_REGISTER_FRAME,
4913 .doit = nl80211_register_mgmt,
026331c4
JM		 4914 .policy = nl80211_policy,
4915 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4916 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4917 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 4918 },
4919 {
2e161f78
JB		 4920 .cmd = NL80211_CMD_FRAME,
4921 .doit = nl80211_tx_mgmt,
026331c4 4922 .policy = nl80211_policy,
f7ca38df
JB		 4923 .flags = GENL_ADMIN_PERM,
4924 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4925 NL80211_FLAG_NEED_RTNL,
4926 },
4927 {
4928 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
4929 .doit = nl80211_tx_mgmt_cancel_wait,
4930 .policy = nl80211_policy,
026331c4 4931 .flags = GENL_ADMIN_PERM,
41265714 4932 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4933 NL80211_FLAG_NEED_RTNL,
026331c4 4934 },
ffb9eb3d
KV		 4935 {
4936 .cmd = NL80211_CMD_SET_POWER_SAVE,
4937 .doit = nl80211_set_power_save,
4938 .policy = nl80211_policy,
4939 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4940 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4941 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 4942 },
4943 {
4944 .cmd = NL80211_CMD_GET_POWER_SAVE,
4945 .doit = nl80211_get_power_save,
4946 .policy = nl80211_policy,
4947 /* can be retrieved by unprivileged users */
4c476991
JB		 4948 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4949 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 4950 },
d6dc1a38
JO		 4951 {
4952 .cmd = NL80211_CMD_SET_CQM,
4953 .doit = nl80211_set_cqm,
4954 .policy = nl80211_policy,
4955 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4956 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4957 NL80211_FLAG_NEED_RTNL,
d6dc1a38 4958 },
f444de05
JB		 4959 {
4960 .cmd = NL80211_CMD_SET_CHANNEL,
4961 .doit = nl80211_set_channel,
4962 .policy = nl80211_policy,
4963 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4964 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4965 NL80211_FLAG_NEED_RTNL,
f444de05 4966 },
e8347eba
BJ		 4967 {
4968 .cmd = NL80211_CMD_SET_WDS_PEER,
4969 .doit = nl80211_set_wds_peer,
4970 .policy = nl80211_policy,
4971 .flags = GENL_ADMIN_PERM,
43b19952
JB		 4972 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4973 NL80211_FLAG_NEED_RTNL,
e8347eba 4974 },
55682965 4975};
9588bbd5 4976
6039f6d2
JM		 4977static struct genl_multicast_group nl80211_mlme_mcgrp = {
4978 .name = "mlme",
4979};
55682965
JB		 4980
4981/* multicast groups */
4982static struct genl_multicast_group nl80211_config_mcgrp = {
4983 .name = "config",
4984};
2a519311
JB		 4985static struct genl_multicast_group nl80211_scan_mcgrp = {
4986 .name = "scan",
4987};
73d54c9e
LR		 4988static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4989 .name = "regulatory",
4990};
55682965
JB		 4991
4992/* notification functions */
4993
4994void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4995{
4996 struct sk_buff *msg;
4997
fd2120ca 4998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4999 if (!msg)
5000 return;
5001
5002 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5003 nlmsg_free(msg);
5004 return;
5005 }
5006
463d0183
JB		 5007 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5008 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5009}
5010
362a415d
JB		 5011static int nl80211_add_scan_req(struct sk_buff *msg,
5012 struct cfg80211_registered_device *rdev)
5013{
5014 struct cfg80211_scan_request *req = rdev->scan_req;
5015 struct nlattr *nest;
5016 int i;
5017
667503dd
JB		 5018 ASSERT_RDEV_LOCK(rdev);
5019
362a415d
JB		 5020 if (WARN_ON(!req))
5021 return 0;
5022
5023 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5024 if (!nest)
5025 goto nla_put_failure;
5026 for (i = 0; i < req->n_ssids; i++)
5027 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5028 nla_nest_end(msg, nest);
5029
5030 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5031 if (!nest)
5032 goto nla_put_failure;
5033 for (i = 0; i < req->n_channels; i++)
5034 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5035 nla_nest_end(msg, nest);
5036
5037 if (req->ie)
5038 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5039
5040 return 0;
5041 nla_put_failure:
5042 return -ENOBUFS;
5043}
5044
a538e2d5
JB		 5045static int nl80211_send_scan_msg(struct sk_buff *msg,
5046 struct cfg80211_registered_device *rdev,
5047 struct net_device *netdev,
5048 u32 pid, u32 seq, int flags,
5049 u32 cmd)
2a519311
JB		 5050{
5051 void *hdr;
5052
5053 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5054 if (!hdr)
5055 return -1;
5056
b5850a7a 5057 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5058 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5059
362a415d
JB		 5060 /* ignore errors and send incomplete event anyway */
5061 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5062
5063 return genlmsg_end(msg, hdr);
5064
5065 nla_put_failure:
5066 genlmsg_cancel(msg, hdr);
5067 return -EMSGSIZE;
5068}
5069
a538e2d5
JB		 5070void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5071 struct net_device *netdev)
5072{
5073 struct sk_buff *msg;
5074
5075 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5076 if (!msg)
5077 return;
5078
5079 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5080 NL80211_CMD_TRIGGER_SCAN) < 0) {
5081 nlmsg_free(msg);
5082 return;
5083 }
5084
463d0183
JB		 5085 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5086 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5087}
5088
2a519311
JB		 5089void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5090 struct net_device *netdev)
5091{
5092 struct sk_buff *msg;
5093
fd2120ca 5094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5095 if (!msg)
5096 return;
5097
a538e2d5
JB		 5098 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5099 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5100 nlmsg_free(msg);
5101 return;
5102 }
5103
463d0183
JB		 5104 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5105 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5106}
5107
5108void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5109 struct net_device *netdev)
5110{
5111 struct sk_buff *msg;
5112
fd2120ca 5113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5114 if (!msg)
5115 return;
5116
a538e2d5
JB		 5117 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5118 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5119 nlmsg_free(msg);
5120 return;
5121 }
5122
463d0183
JB		 5123 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5124 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5125}
5126
73d54c9e
LR		 5127/*
5128 * This can happen on global regulatory changes or device specific settings
5129 * based on custom world regulatory domains.
5130 */
5131void nl80211_send_reg_change_event(struct regulatory_request *request)
5132{
5133 struct sk_buff *msg;
5134 void *hdr;
5135
fd2120ca 5136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5137 if (!msg)
5138 return;
5139
5140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5141 if (!hdr) {
5142 nlmsg_free(msg);
5143 return;
5144 }
5145
5146 /* Userspace can always count this one always being set */
5147 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5148
5149 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5150 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5151 NL80211_REGDOM_TYPE_WORLD);
5152 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5153 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5154 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5155 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5156 request->intersect)
5157 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5158 NL80211_REGDOM_TYPE_INTERSECTION);
5159 else {
5160 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5161 NL80211_REGDOM_TYPE_COUNTRY);
5162 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5163 }
5164
5165 if (wiphy_idx_valid(request->wiphy_idx))
5166 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5167
5168 if (genlmsg_end(msg, hdr) < 0) {
5169 nlmsg_free(msg);
5170 return;
5171 }
5172
bc43b28c 5173 rcu_read_lock();
463d0183 5174 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5175 GFP_ATOMIC);
5176 rcu_read_unlock();
73d54c9e
LR		 5177
5178 return;
5179
5180nla_put_failure:
5181 genlmsg_cancel(msg, hdr);
5182 nlmsg_free(msg);
5183}
5184
6039f6d2
JM		 5185static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5186 struct net_device *netdev,
5187 const u8 *buf, size_t len,
e6d6e342 5188 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5189{
5190 struct sk_buff *msg;
5191 void *hdr;
5192
e6d6e342 5193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5194 if (!msg)
5195 return;
5196
5197 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5198 if (!hdr) {
5199 nlmsg_free(msg);
5200 return;
5201 }
5202
5203 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5205 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5206
5207 if (genlmsg_end(msg, hdr) < 0) {
5208 nlmsg_free(msg);
5209 return;
5210 }
5211
463d0183
JB		 5212 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5213 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5214 return;
5215
5216 nla_put_failure:
5217 genlmsg_cancel(msg, hdr);
5218 nlmsg_free(msg);
5219}
5220
5221void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5222 struct net_device *netdev, const u8 *buf,
5223 size_t len, gfp_t gfp)
6039f6d2
JM		 5224{
5225 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5226 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5227}
5228
5229void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5230 struct net_device *netdev, const u8 *buf,
e6d6e342 5231 size_t len, gfp_t gfp)
6039f6d2 5232{
e6d6e342
JB		 5233 nl80211_send_mlme_event(rdev, netdev, buf, len,
5234 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5235}
5236
53b46b84 5237void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5238 struct net_device *netdev, const u8 *buf,
5239 size_t len, gfp_t gfp)
6039f6d2
JM		 5240{
5241 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5242 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5243}
5244
53b46b84
JM		 5245void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5246 struct net_device *netdev, const u8 *buf,
e6d6e342 5247 size_t len, gfp_t gfp)
6039f6d2
JM		 5248{
5249 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5250 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5251}
5252
1b06bb40
LR		 5253static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5254 struct net_device *netdev, int cmd,
e6d6e342 5255 const u8 *addr, gfp_t gfp)
1965c853
JM		 5256{
5257 struct sk_buff *msg;
5258 void *hdr;
5259
e6d6e342 5260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5261 if (!msg)
5262 return;
5263
5264 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5265 if (!hdr) {
5266 nlmsg_free(msg);
5267 return;
5268 }
5269
5270 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5272 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5273 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5274
5275 if (genlmsg_end(msg, hdr) < 0) {
5276 nlmsg_free(msg);
5277 return;
5278 }
5279
463d0183
JB		 5280 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5281 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5282 return;
5283
5284 nla_put_failure:
5285 genlmsg_cancel(msg, hdr);
5286 nlmsg_free(msg);
5287}
5288
5289void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5290 struct net_device *netdev, const u8 *addr,
5291 gfp_t gfp)
1965c853
JM		 5292{
5293 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5294 addr, gfp);
1965c853
JM		 5295}
5296
5297void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5298 struct net_device *netdev, const u8 *addr,
5299 gfp_t gfp)
1965c853 5300{
e6d6e342
JB		 5301 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5302 addr, gfp);
1965c853
JM		 5303}
5304
b23aa676
SO		 5305void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5306 struct net_device *netdev, const u8 *bssid,
5307 const u8 *req_ie, size_t req_ie_len,
5308 const u8 *resp_ie, size_t resp_ie_len,
5309 u16 status, gfp_t gfp)
5310{
5311 struct sk_buff *msg;
5312 void *hdr;
5313
5314 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5315 if (!msg)
5316 return;
5317
5318 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5319 if (!hdr) {
5320 nlmsg_free(msg);
5321 return;
5322 }
5323
5324 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5325 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5326 if (bssid)
5327 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5328 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5329 if (req_ie)
5330 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5331 if (resp_ie)
5332 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5333
5334 if (genlmsg_end(msg, hdr) < 0) {
5335 nlmsg_free(msg);
5336 return;
5337 }
5338
463d0183
JB		 5339 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5340 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5341 return;
5342
5343 nla_put_failure:
5344 genlmsg_cancel(msg, hdr);
5345 nlmsg_free(msg);
5346
5347}
5348
5349void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5350 struct net_device *netdev, const u8 *bssid,
5351 const u8 *req_ie, size_t req_ie_len,
5352 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5353{
5354 struct sk_buff *msg;
5355 void *hdr;
5356
5357 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5358 if (!msg)
5359 return;
5360
5361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5362 if (!hdr) {
5363 nlmsg_free(msg);
5364 return;
5365 }
5366
5367 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5368 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5369 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5370 if (req_ie)
5371 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5372 if (resp_ie)
5373 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5374
5375 if (genlmsg_end(msg, hdr) < 0) {
5376 nlmsg_free(msg);
5377 return;
5378 }
5379
463d0183
JB		 5380 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5381 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5382 return;
5383
5384 nla_put_failure:
5385 genlmsg_cancel(msg, hdr);
5386 nlmsg_free(msg);
5387
5388}
5389
5390void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5391 struct net_device *netdev, u16 reason,
667503dd 5392 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5393{
5394 struct sk_buff *msg;
5395 void *hdr;
5396
667503dd 5397 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5398 if (!msg)
5399 return;
5400
5401 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5402 if (!hdr) {
5403 nlmsg_free(msg);
5404 return;
5405 }
5406
5407 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5408 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5409 if (from_ap && reason)
5410 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5411 if (from_ap)
5412 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5413 if (ie)
5414 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5415
5416 if (genlmsg_end(msg, hdr) < 0) {
5417 nlmsg_free(msg);
5418 return;
5419 }
5420
463d0183
JB		 5421 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5422 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5423 return;
5424
5425 nla_put_failure:
5426 genlmsg_cancel(msg, hdr);
5427 nlmsg_free(msg);
5428
5429}
5430
04a773ad
JB		 5431void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5432 struct net_device *netdev, const u8 *bssid,
5433 gfp_t gfp)
5434{
5435 struct sk_buff *msg;
5436 void *hdr;
5437
fd2120ca 5438 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5439 if (!msg)
5440 return;
5441
5442 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5443 if (!hdr) {
5444 nlmsg_free(msg);
5445 return;
5446 }
5447
5448 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5449 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5450 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
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);
04a773ad
JB		 5459 return;
5460
5461 nla_put_failure:
5462 genlmsg_cancel(msg, hdr);
5463 nlmsg_free(msg);
5464}
5465
a3b8b056
JM		 5466void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5467 struct net_device *netdev, const u8 *addr,
5468 enum nl80211_key_type key_type, int key_id,
e6d6e342 5469 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5470{
5471 struct sk_buff *msg;
5472 void *hdr;
5473
e6d6e342 5474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5475 if (!msg)
5476 return;
5477
5478 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5479 if (!hdr) {
5480 nlmsg_free(msg);
5481 return;
5482 }
5483
5484 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5486 if (addr)
5487 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5488 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5489 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5490 if (tsc)
5491 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
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);
a3b8b056
JM		 5500 return;
5501
5502 nla_put_failure:
5503 genlmsg_cancel(msg, hdr);
5504 nlmsg_free(msg);
5505}
5506
6bad8766
LR		 5507void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5508 struct ieee80211_channel *channel_before,
5509 struct ieee80211_channel *channel_after)
5510{
5511 struct sk_buff *msg;
5512 void *hdr;
5513 struct nlattr *nl_freq;
5514
fd2120ca 5515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5516 if (!msg)
5517 return;
5518
5519 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5520 if (!hdr) {
5521 nlmsg_free(msg);
5522 return;
5523 }
5524
5525 /*
5526 * Since we are applying the beacon hint to a wiphy we know its
5527 * wiphy_idx is valid
5528 */
5529 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5530
5531 /* Before */
5532 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5533 if (!nl_freq)
5534 goto nla_put_failure;
5535 if (nl80211_msg_put_channel(msg, channel_before))
5536 goto nla_put_failure;
5537 nla_nest_end(msg, nl_freq);
5538
5539 /* After */
5540 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5541 if (!nl_freq)
5542 goto nla_put_failure;
5543 if (nl80211_msg_put_channel(msg, channel_after))
5544 goto nla_put_failure;
5545 nla_nest_end(msg, nl_freq);
5546
5547 if (genlmsg_end(msg, hdr) < 0) {
5548 nlmsg_free(msg);
5549 return;
5550 }
5551
463d0183
JB		 5552 rcu_read_lock();
5553 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5554 GFP_ATOMIC);
5555 rcu_read_unlock();
6bad8766
LR		 5556
5557 return;
5558
5559nla_put_failure:
5560 genlmsg_cancel(msg, hdr);
5561 nlmsg_free(msg);
5562}
5563
9588bbd5
JM		 5564static void nl80211_send_remain_on_chan_event(
5565 int cmd, struct cfg80211_registered_device *rdev,
5566 struct net_device *netdev, u64 cookie,
5567 struct ieee80211_channel *chan,
5568 enum nl80211_channel_type channel_type,
5569 unsigned int duration, gfp_t gfp)
5570{
5571 struct sk_buff *msg;
5572 void *hdr;
5573
5574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5575 if (!msg)
5576 return;
5577
5578 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5579 if (!hdr) {
5580 nlmsg_free(msg);
5581 return;
5582 }
5583
5584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5585 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5586 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5587 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5588 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5589
5590 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5591 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5592
5593 if (genlmsg_end(msg, hdr) < 0) {
5594 nlmsg_free(msg);
5595 return;
5596 }
5597
5598 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5599 nl80211_mlme_mcgrp.id, gfp);
5600 return;
5601
5602 nla_put_failure:
5603 genlmsg_cancel(msg, hdr);
5604 nlmsg_free(msg);
5605}
5606
5607void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5608 struct net_device *netdev, u64 cookie,
5609 struct ieee80211_channel *chan,
5610 enum nl80211_channel_type channel_type,
5611 unsigned int duration, gfp_t gfp)
5612{
5613 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5614 rdev, netdev, cookie, chan,
5615 channel_type, duration, gfp);
5616}
5617
5618void nl80211_send_remain_on_channel_cancel(
5619 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5620 u64 cookie, struct ieee80211_channel *chan,
5621 enum nl80211_channel_type channel_type, gfp_t gfp)
5622{
5623 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5624 rdev, netdev, cookie, chan,
5625 channel_type, 0, gfp);
5626}
5627
98b62183
JB		 5628void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5629 struct net_device *dev, const u8 *mac_addr,
5630 struct station_info *sinfo, gfp_t gfp)
5631{
5632 struct sk_buff *msg;
5633
5634 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5635 if (!msg)
5636 return;
5637
5638 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5639 nlmsg_free(msg);
5640 return;
5641 }
5642
5643 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5644 nl80211_mlme_mcgrp.id, gfp);
5645}
5646
2e161f78
JB		 5647int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5648 struct net_device *netdev, u32 nlpid,
5649 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5650{
5651 struct sk_buff *msg;
5652 void *hdr;
5653 int err;
5654
5655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5656 if (!msg)
5657 return -ENOMEM;
5658
2e161f78 5659 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5660 if (!hdr) {
5661 nlmsg_free(msg);
5662 return -ENOMEM;
5663 }
5664
5665 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5666 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5667 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5668 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5669
5670 err = genlmsg_end(msg, hdr);
5671 if (err < 0) {
5672 nlmsg_free(msg);
5673 return err;
5674 }
5675
5676 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5677 if (err < 0)
5678 return err;
5679 return 0;
5680
5681 nla_put_failure:
5682 genlmsg_cancel(msg, hdr);
5683 nlmsg_free(msg);
5684 return -ENOBUFS;
5685}
5686
2e161f78
JB		 5687void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5688 struct net_device *netdev, u64 cookie,
5689 const u8 *buf, size_t len, bool ack,
5690 gfp_t gfp)
026331c4
JM		 5691{
5692 struct sk_buff *msg;
5693 void *hdr;
5694
5695 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5696 if (!msg)
5697 return;
5698
2e161f78 5699 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5700 if (!hdr) {
5701 nlmsg_free(msg);
5702 return;
5703 }
5704
5705 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5706 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5707 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5708 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5709 if (ack)
5710 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5711
5712 if (genlmsg_end(msg, hdr) < 0) {
5713 nlmsg_free(msg);
5714 return;
5715 }
5716
5717 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5718 return;
5719
5720 nla_put_failure:
5721 genlmsg_cancel(msg, hdr);
5722 nlmsg_free(msg);
5723}
5724
d6dc1a38
JO		 5725void
5726nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5727 struct net_device *netdev,
5728 enum nl80211_cqm_rssi_threshold_event rssi_event,
5729 gfp_t gfp)
5730{
5731 struct sk_buff *msg;
5732 struct nlattr *pinfoattr;
5733 void *hdr;
5734
5735 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5736 if (!msg)
5737 return;
5738
5739 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5740 if (!hdr) {
5741 nlmsg_free(msg);
5742 return;
5743 }
5744
5745 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5746 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5747
5748 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5749 if (!pinfoattr)
5750 goto nla_put_failure;
5751
5752 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5753 rssi_event);
5754
5755 nla_nest_end(msg, pinfoattr);
5756
5757 if (genlmsg_end(msg, hdr) < 0) {
5758 nlmsg_free(msg);
5759 return;
5760 }
5761
5762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5763 nl80211_mlme_mcgrp.id, gfp);
5764 return;
5765
5766 nla_put_failure:
5767 genlmsg_cancel(msg, hdr);
5768 nlmsg_free(msg);
5769}
5770
c063dbf5
JB		 5771void
5772nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
5773 struct net_device *netdev, const u8 *peer,
5774 u32 num_packets, gfp_t gfp)
5775{
5776 struct sk_buff *msg;
5777 struct nlattr *pinfoattr;
5778 void *hdr;
5779
5780 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5781 if (!msg)
5782 return;
5783
5784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5785 if (!hdr) {
5786 nlmsg_free(msg);
5787 return;
5788 }
5789
5790 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5791 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5792 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
5793
5794 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5795 if (!pinfoattr)
5796 goto nla_put_failure;
5797
5798 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
5799
5800 nla_nest_end(msg, pinfoattr);
5801
5802 if (genlmsg_end(msg, hdr) < 0) {
5803 nlmsg_free(msg);
5804 return;
5805 }
5806
5807 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5808 nl80211_mlme_mcgrp.id, gfp);
5809 return;
5810
5811 nla_put_failure:
5812 genlmsg_cancel(msg, hdr);
5813 nlmsg_free(msg);
5814}
5815
026331c4
JM		 5816static int nl80211_netlink_notify(struct notifier_block * nb,
5817 unsigned long state,
5818 void *_notify)
5819{
5820 struct netlink_notify *notify = _notify;
5821 struct cfg80211_registered_device *rdev;
5822 struct wireless_dev *wdev;
5823
5824 if (state != NETLINK_URELEASE)
5825 return NOTIFY_DONE;
5826
5827 rcu_read_lock();
5828
5829 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5830 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5831 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5832
5833 rcu_read_unlock();
5834
5835 return NOTIFY_DONE;
5836}
5837
5838static struct notifier_block nl80211_netlink_notifier = {
5839 .notifier_call = nl80211_netlink_notify,
5840};
5841
55682965
JB		 5842/* initialisation/exit functions */
5843
5844int nl80211_init(void)
5845{
0d63cbb5 5846 int err;
55682965 5847
0d63cbb5
MM		 5848 err = genl_register_family_with_ops(&nl80211_fam,
5849 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5850 if (err)
5851 return err;
5852
55682965
JB		 5853 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5854 if (err)
5855 goto err_out;
5856
2a519311
JB		 5857 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5858 if (err)
5859 goto err_out;
5860
73d54c9e
LR		 5861 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5862 if (err)
5863 goto err_out;
5864
6039f6d2
JM		 5865 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5866 if (err)
5867 goto err_out;
5868
aff89a9b
JB		 5869#ifdef CONFIG_NL80211_TESTMODE
5870 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5871 if (err)
5872 goto err_out;
5873#endif
5874
026331c4
JM		 5875 err = netlink_register_notifier(&nl80211_netlink_notifier);
5876 if (err)
5877 goto err_out;
5878
55682965
JB		 5879 return 0;
5880 err_out:
5881 genl_unregister_family(&nl80211_fam);
5882 return err;
5883}
5884
5885void nl80211_exit(void)
5886{
026331c4 5887 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 5888 genl_unregister_family(&nl80211_fam);
5889}
Ubuntu Focal Linux kernel mirror