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mac80211: ignore peer link requests from unauthenticated stations.
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
50b12f59 124 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 125
24bdd9f4 126 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 127 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 128
36aedc90
JM		 129 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
130 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 131
132 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
133 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
134 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 135 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
136 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 137
138 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_SSID_LEN },
140 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
141 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 142 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 143 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 144 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 145 [NL80211_ATTR_STA_FLAGS2] = {
146 .len = sizeof(struct nl80211_sta_flag_update),
147 },
3f77316c 148 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 149 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
150 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 151 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
152 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
153 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 154 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 155 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 156 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
157 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 158 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
159 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 160 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 161 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
162 .len = IEEE80211_MAX_DATA_LEN },
163 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 164 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 165 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 166 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 167 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 168 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 170 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 171 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 173 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 174 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 175 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
55682965
JB		 176};
177
e31b8213 178/* policy for the key attributes */
b54452b0 179static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 180 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 181 [NL80211_KEY_IDX] = { .type = NLA_U8 },
182 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
183 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
184 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
185 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 186 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 187 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
188};
189
190/* policy for the key default flags */
191static const struct nla_policy
192nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
193 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
194 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 195};
196
a043897a
HS		 197/* ifidx get helper */
198static int nl80211_get_ifidx(struct netlink_callback *cb)
199{
200 int res;
201
202 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
203 nl80211_fam.attrbuf, nl80211_fam.maxattr,
204 nl80211_policy);
205 if (res)
206 return res;
207
208 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
209 return -EINVAL;
210
211 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
212 if (!res)
213 return -EINVAL;
214 return res;
215}
216
67748893
JB		 217static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
218 struct netlink_callback *cb,
219 struct cfg80211_registered_device **rdev,
220 struct net_device **dev)
221{
222 int ifidx = cb->args[0];
223 int err;
224
225 if (!ifidx)
226 ifidx = nl80211_get_ifidx(cb);
227 if (ifidx < 0)
228 return ifidx;
229
230 cb->args[0] = ifidx;
231
232 rtnl_lock();
233
234 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
235 if (!*dev) {
236 err = -ENODEV;
237 goto out_rtnl;
238 }
239
240 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 241 if (IS_ERR(*rdev)) {
242 err = PTR_ERR(*rdev);
67748893
JB		 243 goto out_rtnl;
244 }
245
246 return 0;
247 out_rtnl:
248 rtnl_unlock();
249 return err;
250}
251
252static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
253{
254 cfg80211_unlock_rdev(rdev);
255 rtnl_unlock();
256}
257
f4a11bb0
JB		 258/* IE validation */
259static bool is_valid_ie_attr(const struct nlattr *attr)
260{
261 const u8 *pos;
262 int len;
263
264 if (!attr)
265 return true;
266
267 pos = nla_data(attr);
268 len = nla_len(attr);
269
270 while (len) {
271 u8 elemlen;
272
273 if (len < 2)
274 return false;
275 len -= 2;
276
277 elemlen = pos[1];
278 if (elemlen > len)
279 return false;
280
281 len -= elemlen;
282 pos += 2 + elemlen;
283 }
284
285 return true;
286}
287
55682965
JB		 288/* message building helper */
289static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
290 int flags, u8 cmd)
291{
292 /* since there is no private header just add the generic one */
293 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
294}
295
5dab3b8a
LR		 296static int nl80211_msg_put_channel(struct sk_buff *msg,
297 struct ieee80211_channel *chan)
298{
299 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
300 chan->center_freq);
301
302 if (chan->flags & IEEE80211_CHAN_DISABLED)
303 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
304 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
305 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
306 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
307 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
308 if (chan->flags & IEEE80211_CHAN_RADAR)
309 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
310
311 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
312 DBM_TO_MBM(chan->max_power));
313
314 return 0;
315
316 nla_put_failure:
317 return -ENOBUFS;
318}
319
55682965
JB		 320/* netlink command implementations */
321
b9454e83
JB		 322struct key_parse {
323 struct key_params p;
324 int idx;
e31b8213 325 int type;
b9454e83 326 bool def, defmgmt;
dbd2fd65 327 bool def_uni, def_multi;
b9454e83
JB		 328};
329
330static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
331{
332 struct nlattr *tb[NL80211_KEY_MAX + 1];
333 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
334 nl80211_key_policy);
335 if (err)
336 return err;
337
338 k->def = !!tb[NL80211_KEY_DEFAULT];
339 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
340
dbd2fd65
JB		 341 if (k->def) {
342 k->def_uni = true;
343 k->def_multi = true;
344 }
345 if (k->defmgmt)
346 k->def_multi = true;
347
b9454e83
JB		 348 if (tb[NL80211_KEY_IDX])
349 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
350
351 if (tb[NL80211_KEY_DATA]) {
352 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
353 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
354 }
355
356 if (tb[NL80211_KEY_SEQ]) {
357 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
358 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
359 }
360
361 if (tb[NL80211_KEY_CIPHER])
362 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
363
e31b8213
JB		 364 if (tb[NL80211_KEY_TYPE]) {
365 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
366 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
367 return -EINVAL;
368 }
369
dbd2fd65
JB		 370 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
371 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
372 int err = nla_parse_nested(kdt,
373 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
374 tb[NL80211_KEY_DEFAULT_TYPES],
375 nl80211_key_default_policy);
376 if (err)
377 return err;
378
379 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
380 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
381 }
382
b9454e83
JB		 383 return 0;
384}
385
386static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
387{
388 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
389 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
390 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
391 }
392
393 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
394 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
395 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
396 }
397
398 if (info->attrs[NL80211_ATTR_KEY_IDX])
399 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
400
401 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
402 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
403
404 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
405 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
406
dbd2fd65
JB		 407 if (k->def) {
408 k->def_uni = true;
409 k->def_multi = true;
410 }
411 if (k->defmgmt)
412 k->def_multi = true;
413
e31b8213
JB		 414 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
415 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
416 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
417 return -EINVAL;
418 }
419
dbd2fd65
JB		 420 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
421 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
422 int err = nla_parse_nested(
423 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
424 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
425 nl80211_key_default_policy);
426 if (err)
427 return err;
428
429 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
430 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
431 }
432
b9454e83
JB		 433 return 0;
434}
435
436static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
437{
438 int err;
439
440 memset(k, 0, sizeof(*k));
441 k->idx = -1;
e31b8213 442 k->type = -1;
b9454e83
JB		 443
444 if (info->attrs[NL80211_ATTR_KEY])
445 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
446 else
447 err = nl80211_parse_key_old(info, k);
448
449 if (err)
450 return err;
451
452 if (k->def && k->defmgmt)
453 return -EINVAL;
454
dbd2fd65
JB		 455 if (k->defmgmt) {
456 if (k->def_uni || !k->def_multi)
457 return -EINVAL;
458 }
459
b9454e83
JB		 460 if (k->idx != -1) {
461 if (k->defmgmt) {
462 if (k->idx < 4 || k->idx > 5)
463 return -EINVAL;
464 } else if (k->def) {
465 if (k->idx < 0 || k->idx > 3)
466 return -EINVAL;
467 } else {
468 if (k->idx < 0 || k->idx > 5)
469 return -EINVAL;
470 }
471 }
472
473 return 0;
474}
475
fffd0934
JB		 476static struct cfg80211_cached_keys *
477nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
478 struct nlattr *keys)
479{
480 struct key_parse parse;
481 struct nlattr *key;
482 struct cfg80211_cached_keys *result;
483 int rem, err, def = 0;
484
485 result = kzalloc(sizeof(*result), GFP_KERNEL);
486 if (!result)
487 return ERR_PTR(-ENOMEM);
488
489 result->def = -1;
490 result->defmgmt = -1;
491
492 nla_for_each_nested(key, keys, rem) {
493 memset(&parse, 0, sizeof(parse));
494 parse.idx = -1;
495
496 err = nl80211_parse_key_new(key, &parse);
497 if (err)
498 goto error;
499 err = -EINVAL;
500 if (!parse.p.key)
501 goto error;
502 if (parse.idx < 0 || parse.idx > 4)
503 goto error;
504 if (parse.def) {
505 if (def)
506 goto error;
507 def = 1;
508 result->def = parse.idx;
dbd2fd65
JB		 509 if (!parse.def_uni || !parse.def_multi)
510 goto error;
fffd0934
JB		 511 } else if (parse.defmgmt)
512 goto error;
513 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 514 parse.idx, false, NULL);
fffd0934
JB		 515 if (err)
516 goto error;
517 result->params[parse.idx].cipher = parse.p.cipher;
518 result->params[parse.idx].key_len = parse.p.key_len;
519 result->params[parse.idx].key = result->data[parse.idx];
520 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
521 }
522
523 return result;
524 error:
525 kfree(result);
526 return ERR_PTR(err);
527}
528
529static int nl80211_key_allowed(struct wireless_dev *wdev)
530{
531 ASSERT_WDEV_LOCK(wdev);
532
fffd0934
JB		 533 switch (wdev->iftype) {
534 case NL80211_IFTYPE_AP:
535 case NL80211_IFTYPE_AP_VLAN:
074ac8df 536 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 537 break;
538 case NL80211_IFTYPE_ADHOC:
539 if (!wdev->current_bss)
540 return -ENOLINK;
541 break;
542 case NL80211_IFTYPE_STATION:
074ac8df 543 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 544 if (wdev->sme_state != CFG80211_SME_CONNECTED)
545 return -ENOLINK;
546 break;
547 default:
548 return -EINVAL;
549 }
550
551 return 0;
552}
553
55682965
JB		 554static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
555 struct cfg80211_registered_device *dev)
556{
557 void *hdr;
ee688b00
JB		 558 struct nlattr *nl_bands, *nl_band;
559 struct nlattr *nl_freqs, *nl_freq;
560 struct nlattr *nl_rates, *nl_rate;
f59ac048 561 struct nlattr *nl_modes;
8fdc621d 562 struct nlattr *nl_cmds;
ee688b00
JB		 563 enum ieee80211_band band;
564 struct ieee80211_channel *chan;
565 struct ieee80211_rate *rate;
566 int i;
f59ac048 567 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 568 const struct ieee80211_txrx_stypes *mgmt_stypes =
569 dev->wiphy.mgmt_stypes;
55682965
JB		 570
571 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
572 if (!hdr)
573 return -1;
574
b5850a7a 575 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 576 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 577
f5ea9120
JB		 578 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
579 cfg80211_rdev_list_generation);
580
b9a5f8ca
JM		 581 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
582 dev->wiphy.retry_short);
583 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
584 dev->wiphy.retry_long);
585 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
586 dev->wiphy.frag_threshold);
587 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
588 dev->wiphy.rts_threshold);
81077e82
LT		 589 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
590 dev->wiphy.coverage_class);
2a519311
JB		 591 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
592 dev->wiphy.max_scan_ssids);
18a83659
JB		 593 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
594 dev->wiphy.max_scan_ie_len);
ee688b00 595
e31b8213
JB		 596 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
597 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 598 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
599 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
e31b8213 600
25e47c18
JB		 601 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
602 sizeof(u32) * dev->wiphy.n_cipher_suites,
603 dev->wiphy.cipher_suites);
604
67fbb16b
SO		 605 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
606 dev->wiphy.max_num_pmkids);
607
c0692b8f
JB		 608 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
609 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
610
39fd5de4
BR		 611 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
612 dev->wiphy.available_antennas_tx);
613 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
614 dev->wiphy.available_antennas_rx);
615
7f531e03
BR		 616 if ((dev->wiphy.available_antennas_tx ||
617 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 618 u32 tx_ant = 0, rx_ant = 0;
619 int res;
620 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
621 if (!res) {
622 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
623 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
624 }
625 }
626
f59ac048
LR		 627 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
628 if (!nl_modes)
629 goto nla_put_failure;
630
631 i = 0;
632 while (ifmodes) {
633 if (ifmodes & 1)
634 NLA_PUT_FLAG(msg, i);
635 ifmodes >>= 1;
636 i++;
637 }
638
639 nla_nest_end(msg, nl_modes);
640
ee688b00
JB		 641 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
642 if (!nl_bands)
643 goto nla_put_failure;
644
645 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
646 if (!dev->wiphy.bands[band])
647 continue;
648
649 nl_band = nla_nest_start(msg, band);
650 if (!nl_band)
651 goto nla_put_failure;
652
d51626df
JB		 653 /* add HT info */
654 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
655 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
656 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
657 &dev->wiphy.bands[band]->ht_cap.mcs);
658 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
659 dev->wiphy.bands[band]->ht_cap.cap);
660 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
661 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
662 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
663 dev->wiphy.bands[band]->ht_cap.ampdu_density);
664 }
665
ee688b00
JB		 666 /* add frequencies */
667 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
668 if (!nl_freqs)
669 goto nla_put_failure;
670
671 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
672 nl_freq = nla_nest_start(msg, i);
673 if (!nl_freq)
674 goto nla_put_failure;
675
676 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 677
678 if (nl80211_msg_put_channel(msg, chan))
679 goto nla_put_failure;
e2f367f2 680
ee688b00
JB		 681 nla_nest_end(msg, nl_freq);
682 }
683
684 nla_nest_end(msg, nl_freqs);
685
686 /* add bitrates */
687 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
688 if (!nl_rates)
689 goto nla_put_failure;
690
691 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
692 nl_rate = nla_nest_start(msg, i);
693 if (!nl_rate)
694 goto nla_put_failure;
695
696 rate = &dev->wiphy.bands[band]->bitrates[i];
697 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
698 rate->bitrate);
699 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
700 NLA_PUT_FLAG(msg,
701 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
702
703 nla_nest_end(msg, nl_rate);
704 }
705
706 nla_nest_end(msg, nl_rates);
707
708 nla_nest_end(msg, nl_band);
709 }
710 nla_nest_end(msg, nl_bands);
711
8fdc621d
JB		 712 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
713 if (!nl_cmds)
714 goto nla_put_failure;
715
716 i = 0;
717#define CMD(op, n) \
718 do { \
719 if (dev->ops->op) { \
720 i++; \
721 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
722 } \
723 } while (0)
724
725 CMD(add_virtual_intf, NEW_INTERFACE);
726 CMD(change_virtual_intf, SET_INTERFACE);
727 CMD(add_key, NEW_KEY);
728 CMD(add_beacon, NEW_BEACON);
729 CMD(add_station, NEW_STATION);
730 CMD(add_mpath, NEW_MPATH);
24bdd9f4 731 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 732 CMD(change_bss, SET_BSS);
636a5d36
JM		 733 CMD(auth, AUTHENTICATE);
734 CMD(assoc, ASSOCIATE);
735 CMD(deauth, DEAUTHENTICATE);
736 CMD(disassoc, DISASSOCIATE);
04a773ad 737 CMD(join_ibss, JOIN_IBSS);
29cbe68c 738 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 739 CMD(set_pmksa, SET_PMKSA);
740 CMD(del_pmksa, DEL_PMKSA);
741 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 742 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 743 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 744 CMD(mgmt_tx, FRAME);
f7ca38df 745 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 746 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 747 i++;
748 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
749 }
f444de05 750 CMD(set_channel, SET_CHANNEL);
e8347eba 751 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 752
753#undef CMD
b23aa676 754
6829c878 755 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 756 i++;
757 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
758 }
759
6829c878 760 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 761 i++;
762 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
763 }
764
8fdc621d
JB		 765 nla_nest_end(msg, nl_cmds);
766
a293911d
JB		 767 if (dev->ops->remain_on_channel)
768 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
769 dev->wiphy.max_remain_on_channel_duration);
770
f7ca38df
JB		 771 /* for now at least assume all drivers have it */
772 if (dev->ops->mgmt_tx)
773 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
774
2e161f78
JB		 775 if (mgmt_stypes) {
776 u16 stypes;
777 struct nlattr *nl_ftypes, *nl_ifs;
778 enum nl80211_iftype ift;
779
780 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
781 if (!nl_ifs)
782 goto nla_put_failure;
783
784 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
785 nl_ftypes = nla_nest_start(msg, ift);
786 if (!nl_ftypes)
787 goto nla_put_failure;
788 i = 0;
789 stypes = mgmt_stypes[ift].tx;
790 while (stypes) {
791 if (stypes & 1)
792 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
793 (i << 4) | IEEE80211_FTYPE_MGMT);
794 stypes >>= 1;
795 i++;
796 }
797 nla_nest_end(msg, nl_ftypes);
798 }
799
74b70a4e
JB		 800 nla_nest_end(msg, nl_ifs);
801
2e161f78
JB		 802 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
803 if (!nl_ifs)
804 goto nla_put_failure;
805
806 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
807 nl_ftypes = nla_nest_start(msg, ift);
808 if (!nl_ftypes)
809 goto nla_put_failure;
810 i = 0;
811 stypes = mgmt_stypes[ift].rx;
812 while (stypes) {
813 if (stypes & 1)
814 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
815 (i << 4) | IEEE80211_FTYPE_MGMT);
816 stypes >>= 1;
817 i++;
818 }
819 nla_nest_end(msg, nl_ftypes);
820 }
821 nla_nest_end(msg, nl_ifs);
822 }
823
55682965
JB		 824 return genlmsg_end(msg, hdr);
825
826 nla_put_failure:
bc3ed28c
TG		 827 genlmsg_cancel(msg, hdr);
828 return -EMSGSIZE;
55682965
JB		 829}
830
831static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
832{
833 int idx = 0;
834 int start = cb->args[0];
835 struct cfg80211_registered_device *dev;
836
a1794390 837 mutex_lock(&cfg80211_mutex);
79c97e97 838 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 839 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
840 continue;
b4637271 841 if (++idx <= start)
55682965
JB		 842 continue;
843 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
844 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 845 dev) < 0) {
846 idx--;
55682965 847 break;
b4637271 848 }
55682965 849 }
a1794390 850 mutex_unlock(&cfg80211_mutex);
55682965
JB		 851
852 cb->args[0] = idx;
853
854 return skb->len;
855}
856
857static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
858{
859 struct sk_buff *msg;
4c476991 860 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 861
fd2120ca 862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 863 if (!msg)
4c476991 864 return -ENOMEM;
55682965 865
4c476991
JB		 866 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
867 nlmsg_free(msg);
868 return -ENOBUFS;
869 }
55682965 870
134e6375 871 return genlmsg_reply(msg, info);
55682965
JB		 872}
873
31888487
JM		 874static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
875 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
876 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
877 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
878 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
879 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
880};
881
882static int parse_txq_params(struct nlattr *tb[],
883 struct ieee80211_txq_params *txq_params)
884{
885 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
886 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
887 !tb[NL80211_TXQ_ATTR_AIFS])
888 return -EINVAL;
889
890 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
891 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
892 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
893 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
894 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
895
896 return 0;
897}
898
f444de05
JB		 899static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
900{
901 /*
902 * You can only set the channel explicitly for AP, mesh
903 * and WDS type interfaces; all others have their channel
904 * managed via their respective "establish a connection"
905 * command (connect, join, ...)
906 *
907 * Monitors are special as they are normally slaved to
908 * whatever else is going on, so they behave as though
909 * you tried setting the wiphy channel itself.
910 */
911 return !wdev ||
912 wdev->iftype == NL80211_IFTYPE_AP ||
913 wdev->iftype == NL80211_IFTYPE_WDS ||
914 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 915 wdev->iftype == NL80211_IFTYPE_MONITOR ||
916 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 917}
918
919static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
920 struct wireless_dev *wdev,
921 struct genl_info *info)
922{
923 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
924 u32 freq;
925 int result;
926
927 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
928 return -EINVAL;
929
930 if (!nl80211_can_set_dev_channel(wdev))
931 return -EOPNOTSUPP;
932
933 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
934 channel_type = nla_get_u32(info->attrs[
935 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
936 if (channel_type != NL80211_CHAN_NO_HT &&
937 channel_type != NL80211_CHAN_HT20 &&
938 channel_type != NL80211_CHAN_HT40PLUS &&
939 channel_type != NL80211_CHAN_HT40MINUS)
940 return -EINVAL;
941 }
942
943 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
944
945 mutex_lock(&rdev->devlist_mtx);
946 if (wdev) {
947 wdev_lock(wdev);
948 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
949 wdev_unlock(wdev);
950 } else {
951 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
952 }
953 mutex_unlock(&rdev->devlist_mtx);
954
955 return result;
956}
957
958static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
959{
4c476991
JB		 960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
961 struct net_device *netdev = info->user_ptr[1];
f444de05 962
4c476991 963 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 964}
965
e8347eba
BJ		 966static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
967{
43b19952
JB		 968 struct cfg80211_registered_device *rdev = info->user_ptr[0];
969 struct net_device *dev = info->user_ptr[1];
970 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 971 const u8 *bssid;
e8347eba
BJ		 972
973 if (!info->attrs[NL80211_ATTR_MAC])
974 return -EINVAL;
975
43b19952
JB		 976 if (netif_running(dev))
977 return -EBUSY;
e8347eba 978
43b19952
JB		 979 if (!rdev->ops->set_wds_peer)
980 return -EOPNOTSUPP;
e8347eba 981
43b19952
JB		 982 if (wdev->iftype != NL80211_IFTYPE_WDS)
983 return -EOPNOTSUPP;
e8347eba
BJ		 984
985 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 986 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 987}
988
989
55682965
JB		 990static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
991{
992 struct cfg80211_registered_device *rdev;
f444de05
JB		 993 struct net_device *netdev = NULL;
994 struct wireless_dev *wdev;
a1e567c8 995 int result = 0, rem_txq_params = 0;
31888487 996 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 997 u32 changed;
998 u8 retry_short = 0, retry_long = 0;
999 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1000 u8 coverage_class = 0;
55682965 1001
f444de05
JB		 1002 /*
1003 * Try to find the wiphy and netdev. Normally this
1004 * function shouldn't need the netdev, but this is
1005 * done for backward compatibility -- previously
1006 * setting the channel was done per wiphy, but now
1007 * it is per netdev. Previous userland like hostapd
1008 * also passed a netdev to set_wiphy, so that it is
1009 * possible to let that go to the right netdev!
1010 */
4bbf4d56
JB		 1011 mutex_lock(&cfg80211_mutex);
1012
f444de05
JB		 1013 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1014 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1015
1016 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1017 if (netdev && netdev->ieee80211_ptr) {
1018 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1019 mutex_lock(&rdev->mtx);
1020 } else
1021 netdev = NULL;
4bbf4d56
JB		 1022 }
1023
f444de05
JB		 1024 if (!netdev) {
1025 rdev = __cfg80211_rdev_from_info(info);
1026 if (IS_ERR(rdev)) {
1027 mutex_unlock(&cfg80211_mutex);
4c476991 1028 return PTR_ERR(rdev);
f444de05
JB		 1029 }
1030 wdev = NULL;
1031 netdev = NULL;
1032 result = 0;
1033
1034 mutex_lock(&rdev->mtx);
1035 } else if (netif_running(netdev) &&
1036 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1037 wdev = netdev->ieee80211_ptr;
1038 else
1039 wdev = NULL;
1040
1041 /*
1042 * end workaround code, by now the rdev is available
1043 * and locked, and wdev may or may not be NULL.
1044 */
4bbf4d56
JB		 1045
1046 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1047 result = cfg80211_dev_rename(
1048 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1049
1050 mutex_unlock(&cfg80211_mutex);
1051
1052 if (result)
1053 goto bad_res;
31888487
JM		 1054
1055 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1056 struct ieee80211_txq_params txq_params;
1057 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1058
1059 if (!rdev->ops->set_txq_params) {
1060 result = -EOPNOTSUPP;
1061 goto bad_res;
1062 }
1063
1064 nla_for_each_nested(nl_txq_params,
1065 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1066 rem_txq_params) {
1067 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1068 nla_data(nl_txq_params),
1069 nla_len(nl_txq_params),
1070 txq_params_policy);
1071 result = parse_txq_params(tb, &txq_params);
1072 if (result)
1073 goto bad_res;
1074
1075 result = rdev->ops->set_txq_params(&rdev->wiphy,
1076 &txq_params);
1077 if (result)
1078 goto bad_res;
1079 }
1080 }
55682965 1081
72bdcf34 1082 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1083 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1084 if (result)
1085 goto bad_res;
1086 }
1087
98d2ff8b
JO		 1088 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1089 enum nl80211_tx_power_setting type;
1090 int idx, mbm = 0;
1091
1092 if (!rdev->ops->set_tx_power) {
60ea385f 1093 result = -EOPNOTSUPP;
98d2ff8b
JO		 1094 goto bad_res;
1095 }
1096
1097 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1098 type = nla_get_u32(info->attrs[idx]);
1099
1100 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1101 (type != NL80211_TX_POWER_AUTOMATIC)) {
1102 result = -EINVAL;
1103 goto bad_res;
1104 }
1105
1106 if (type != NL80211_TX_POWER_AUTOMATIC) {
1107 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1108 mbm = nla_get_u32(info->attrs[idx]);
1109 }
1110
1111 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1112 if (result)
1113 goto bad_res;
1114 }
1115
afe0cbf8
BR		 1116 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1117 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1118 u32 tx_ant, rx_ant;
7f531e03
BR		 1119 if ((!rdev->wiphy.available_antennas_tx &&
1120 !rdev->wiphy.available_antennas_rx) ||
1121 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1122 result = -EOPNOTSUPP;
1123 goto bad_res;
1124 }
1125
1126 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1127 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1128
a7ffac95 1129 /* reject antenna configurations which don't match the
7f531e03
BR		 1130 * available antenna masks, except for the "all" mask */
1131 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1132 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1133 result = -EINVAL;
1134 goto bad_res;
1135 }
1136
7f531e03
BR		 1137 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1138 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1139
afe0cbf8
BR		 1140 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1141 if (result)
1142 goto bad_res;
1143 }
1144
b9a5f8ca
JM		 1145 changed = 0;
1146
1147 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1148 retry_short = nla_get_u8(
1149 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1150 if (retry_short == 0) {
1151 result = -EINVAL;
1152 goto bad_res;
1153 }
1154 changed |= WIPHY_PARAM_RETRY_SHORT;
1155 }
1156
1157 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1158 retry_long = nla_get_u8(
1159 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1160 if (retry_long == 0) {
1161 result = -EINVAL;
1162 goto bad_res;
1163 }
1164 changed |= WIPHY_PARAM_RETRY_LONG;
1165 }
1166
1167 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1168 frag_threshold = nla_get_u32(
1169 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1170 if (frag_threshold < 256) {
1171 result = -EINVAL;
1172 goto bad_res;
1173 }
1174 if (frag_threshold != (u32) -1) {
1175 /*
1176 * Fragments (apart from the last one) are required to
1177 * have even length. Make the fragmentation code
1178 * simpler by stripping LSB should someone try to use
1179 * odd threshold value.
1180 */
1181 frag_threshold &= ~0x1;
1182 }
1183 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1184 }
1185
1186 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1187 rts_threshold = nla_get_u32(
1188 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1189 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1190 }
1191
81077e82
LT		 1192 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1193 coverage_class = nla_get_u8(
1194 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1195 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1196 }
1197
b9a5f8ca
JM		 1198 if (changed) {
1199 u8 old_retry_short, old_retry_long;
1200 u32 old_frag_threshold, old_rts_threshold;
81077e82 1201 u8 old_coverage_class;
b9a5f8ca
JM		 1202
1203 if (!rdev->ops->set_wiphy_params) {
1204 result = -EOPNOTSUPP;
1205 goto bad_res;
1206 }
1207
1208 old_retry_short = rdev->wiphy.retry_short;
1209 old_retry_long = rdev->wiphy.retry_long;
1210 old_frag_threshold = rdev->wiphy.frag_threshold;
1211 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1212 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1213
1214 if (changed & WIPHY_PARAM_RETRY_SHORT)
1215 rdev->wiphy.retry_short = retry_short;
1216 if (changed & WIPHY_PARAM_RETRY_LONG)
1217 rdev->wiphy.retry_long = retry_long;
1218 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1219 rdev->wiphy.frag_threshold = frag_threshold;
1220 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1221 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1222 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1223 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1224
1225 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1226 if (result) {
1227 rdev->wiphy.retry_short = old_retry_short;
1228 rdev->wiphy.retry_long = old_retry_long;
1229 rdev->wiphy.frag_threshold = old_frag_threshold;
1230 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1231 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1232 }
1233 }
72bdcf34 1234
306d6112 1235 bad_res:
4bbf4d56 1236 mutex_unlock(&rdev->mtx);
f444de05
JB		 1237 if (netdev)
1238 dev_put(netdev);
55682965
JB		 1239 return result;
1240}
1241
1242
1243static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1244 struct cfg80211_registered_device *rdev,
55682965
JB		 1245 struct net_device *dev)
1246{
1247 void *hdr;
1248
1249 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1250 if (!hdr)
1251 return -1;
1252
1253 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1254 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1255 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1256 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1257
1258 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1259 rdev->devlist_generation ^
1260 (cfg80211_rdev_list_generation << 2));
1261
55682965
JB		 1262 return genlmsg_end(msg, hdr);
1263
1264 nla_put_failure:
bc3ed28c
TG		 1265 genlmsg_cancel(msg, hdr);
1266 return -EMSGSIZE;
55682965
JB		 1267}
1268
1269static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1270{
1271 int wp_idx = 0;
1272 int if_idx = 0;
1273 int wp_start = cb->args[0];
1274 int if_start = cb->args[1];
f5ea9120 1275 struct cfg80211_registered_device *rdev;
55682965
JB		 1276 struct wireless_dev *wdev;
1277
a1794390 1278 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1279 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1280 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1281 continue;
bba95fef
JB		 1282 if (wp_idx < wp_start) {
1283 wp_idx++;
55682965 1284 continue;
bba95fef 1285 }
55682965
JB		 1286 if_idx = 0;
1287
f5ea9120
JB		 1288 mutex_lock(&rdev->devlist_mtx);
1289 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1290 if (if_idx < if_start) {
1291 if_idx++;
55682965 1292 continue;
bba95fef 1293 }
55682965
JB		 1294 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1295 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1296 rdev, wdev->netdev) < 0) {
1297 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1298 goto out;
1299 }
1300 if_idx++;
55682965 1301 }
f5ea9120 1302 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1303
1304 wp_idx++;
55682965 1305 }
bba95fef 1306 out:
a1794390 1307 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1308
1309 cb->args[0] = wp_idx;
1310 cb->args[1] = if_idx;
1311
1312 return skb->len;
1313}
1314
1315static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1316{
1317 struct sk_buff *msg;
4c476991
JB		 1318 struct cfg80211_registered_device *dev = info->user_ptr[0];
1319 struct net_device *netdev = info->user_ptr[1];
55682965 1320
fd2120ca 1321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1322 if (!msg)
4c476991 1323 return -ENOMEM;
55682965 1324
d726405a 1325 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1326 dev, netdev) < 0) {
1327 nlmsg_free(msg);
1328 return -ENOBUFS;
1329 }
55682965 1330
134e6375 1331 return genlmsg_reply(msg, info);
55682965
JB		 1332}
1333
66f7ac50
MW		 1334static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1335 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1336 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1337 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1338 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1339 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1340};
1341
1342static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1343{
1344 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1345 int flag;
1346
1347 *mntrflags = 0;
1348
1349 if (!nla)
1350 return -EINVAL;
1351
1352 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1353 nla, mntr_flags_policy))
1354 return -EINVAL;
1355
1356 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1357 if (flags[flag])
1358 *mntrflags |= (1<<flag);
1359
1360 return 0;
1361}
1362
9bc383de 1363static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1364 struct net_device *netdev, u8 use_4addr,
1365 enum nl80211_iftype iftype)
9bc383de 1366{
ad4bb6f8 1367 if (!use_4addr) {
f350a0a8 1368 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1369 return -EBUSY;
9bc383de 1370 return 0;
ad4bb6f8 1371 }
9bc383de
JB		 1372
1373 switch (iftype) {
1374 case NL80211_IFTYPE_AP_VLAN:
1375 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1376 return 0;
1377 break;
1378 case NL80211_IFTYPE_STATION:
1379 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1380 return 0;
1381 break;
1382 default:
1383 break;
1384 }
1385
1386 return -EOPNOTSUPP;
1387}
1388
55682965
JB		 1389static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1390{
4c476991 1391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1392 struct vif_params params;
e36d56b6 1393 int err;
04a773ad 1394 enum nl80211_iftype otype, ntype;
4c476991 1395 struct net_device *dev = info->user_ptr[1];
92ffe055 1396 u32 _flags, *flags = NULL;
ac7f9cfa 1397 bool change = false;
55682965 1398
2ec600d6
LCC		 1399 memset(&params, 0, sizeof(params));
1400
04a773ad 1401 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1402
723b038d 1403 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1404 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1405 if (otype != ntype)
ac7f9cfa 1406 change = true;
4c476991
JB		 1407 if (ntype > NL80211_IFTYPE_MAX)
1408 return -EINVAL;
723b038d
JB		 1409 }
1410
92ffe055 1411 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1412 struct wireless_dev *wdev = dev->ieee80211_ptr;
1413
4c476991
JB		 1414 if (ntype != NL80211_IFTYPE_MESH_POINT)
1415 return -EINVAL;
29cbe68c
JB		 1416 if (netif_running(dev))
1417 return -EBUSY;
1418
1419 wdev_lock(wdev);
1420 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1421 IEEE80211_MAX_MESH_ID_LEN);
1422 wdev->mesh_id_up_len =
1423 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1424 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1425 wdev->mesh_id_up_len);
1426 wdev_unlock(wdev);
2ec600d6
LCC		 1427 }
1428
8b787643
FF		 1429 if (info->attrs[NL80211_ATTR_4ADDR]) {
1430 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1431 change = true;
ad4bb6f8 1432 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1433 if (err)
4c476991 1434 return err;
8b787643
FF		 1435 } else {
1436 params.use_4addr = -1;
1437 }
1438
92ffe055 1439 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1440 if (ntype != NL80211_IFTYPE_MONITOR)
1441 return -EINVAL;
92ffe055
JB		 1442 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1443 &_flags);
ac7f9cfa 1444 if (err)
4c476991 1445 return err;
ac7f9cfa
JB		 1446
1447 flags = &_flags;
1448 change = true;
92ffe055 1449 }
3b85875a 1450
ac7f9cfa 1451 if (change)
3d54d255 1452 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1453 else
1454 err = 0;
60719ffd 1455
9bc383de
JB		 1456 if (!err && params.use_4addr != -1)
1457 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1458
55682965
JB		 1459 return err;
1460}
1461
1462static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1463{
4c476991 1464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1465 struct vif_params params;
f9e10ce4 1466 struct net_device *dev;
55682965
JB		 1467 int err;
1468 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1469 u32 flags;
55682965 1470
2ec600d6
LCC		 1471 memset(&params, 0, sizeof(params));
1472
55682965
JB		 1473 if (!info->attrs[NL80211_ATTR_IFNAME])
1474 return -EINVAL;
1475
1476 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1477 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1478 if (type > NL80211_IFTYPE_MAX)
1479 return -EINVAL;
1480 }
1481
79c97e97 1482 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1483 !(rdev->wiphy.interface_modes & (1 << type)))
1484 return -EOPNOTSUPP;
55682965 1485
9bc383de 1486 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1487 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1488 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1489 if (err)
4c476991 1490 return err;
9bc383de 1491 }
8b787643 1492
66f7ac50
MW		 1493 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1494 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1495 &flags);
f9e10ce4 1496 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1497 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1498 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1499 if (IS_ERR(dev))
1500 return PTR_ERR(dev);
2ec600d6 1501
29cbe68c
JB		 1502 if (type == NL80211_IFTYPE_MESH_POINT &&
1503 info->attrs[NL80211_ATTR_MESH_ID]) {
1504 struct wireless_dev *wdev = dev->ieee80211_ptr;
1505
1506 wdev_lock(wdev);
1507 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1508 IEEE80211_MAX_MESH_ID_LEN);
1509 wdev->mesh_id_up_len =
1510 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1511 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1512 wdev->mesh_id_up_len);
1513 wdev_unlock(wdev);
1514 }
1515
f9e10ce4 1516 return 0;
55682965
JB		 1517}
1518
1519static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1520{
4c476991
JB		 1521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1522 struct net_device *dev = info->user_ptr[1];
55682965 1523
4c476991
JB		 1524 if (!rdev->ops->del_virtual_intf)
1525 return -EOPNOTSUPP;
55682965 1526
4c476991 1527 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1528}
1529
41ade00f
JB		 1530struct get_key_cookie {
1531 struct sk_buff *msg;
1532 int error;
b9454e83 1533 int idx;
41ade00f
JB		 1534};
1535
1536static void get_key_callback(void *c, struct key_params *params)
1537{
b9454e83 1538 struct nlattr *key;
41ade00f
JB		 1539 struct get_key_cookie *cookie = c;
1540
1541 if (params->key)
1542 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1543 params->key_len, params->key);
1544
1545 if (params->seq)
1546 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1547 params->seq_len, params->seq);
1548
1549 if (params->cipher)
1550 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1551 params->cipher);
1552
b9454e83
JB		 1553 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1554 if (!key)
1555 goto nla_put_failure;
1556
1557 if (params->key)
1558 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1559 params->key_len, params->key);
1560
1561 if (params->seq)
1562 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1563 params->seq_len, params->seq);
1564
1565 if (params->cipher)
1566 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1567 params->cipher);
1568
1569 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1570
1571 nla_nest_end(cookie->msg, key);
1572
41ade00f
JB		 1573 return;
1574 nla_put_failure:
1575 cookie->error = 1;
1576}
1577
1578static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1579{
4c476991 1580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1581 int err;
4c476991 1582 struct net_device *dev = info->user_ptr[1];
41ade00f 1583 u8 key_idx = 0;
e31b8213
JB		 1584 const u8 *mac_addr = NULL;
1585 bool pairwise;
41ade00f
JB		 1586 struct get_key_cookie cookie = {
1587 .error = 0,
1588 };
1589 void *hdr;
1590 struct sk_buff *msg;
1591
1592 if (info->attrs[NL80211_ATTR_KEY_IDX])
1593 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1594
3cfcf6ac 1595 if (key_idx > 5)
41ade00f
JB		 1596 return -EINVAL;
1597
1598 if (info->attrs[NL80211_ATTR_MAC])
1599 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1600
e31b8213
JB		 1601 pairwise = !!mac_addr;
1602 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1603 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1604 if (kt >= NUM_NL80211_KEYTYPES)
1605 return -EINVAL;
1606 if (kt != NL80211_KEYTYPE_GROUP &&
1607 kt != NL80211_KEYTYPE_PAIRWISE)
1608 return -EINVAL;
1609 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1610 }
1611
4c476991
JB		 1612 if (!rdev->ops->get_key)
1613 return -EOPNOTSUPP;
41ade00f 1614
fd2120ca 1615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1616 if (!msg)
1617 return -ENOMEM;
41ade00f
JB		 1618
1619 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1620 NL80211_CMD_NEW_KEY);
4c476991
JB		 1621 if (IS_ERR(hdr))
1622 return PTR_ERR(hdr);
41ade00f
JB		 1623
1624 cookie.msg = msg;
b9454e83 1625 cookie.idx = key_idx;
41ade00f
JB		 1626
1627 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1628 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1629 if (mac_addr)
1630 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1631
e31b8213
JB		 1632 if (pairwise && mac_addr &&
1633 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1634 return -ENOENT;
1635
1636 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1637 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1638
1639 if (err)
6c95e2a2 1640 goto free_msg;
41ade00f
JB		 1641
1642 if (cookie.error)
1643 goto nla_put_failure;
1644
1645 genlmsg_end(msg, hdr);
4c476991 1646 return genlmsg_reply(msg, info);
41ade00f
JB		 1647
1648 nla_put_failure:
1649 err = -ENOBUFS;
6c95e2a2 1650 free_msg:
41ade00f 1651 nlmsg_free(msg);
41ade00f
JB		 1652 return err;
1653}
1654
1655static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1656{
4c476991 1657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1658 struct key_parse key;
41ade00f 1659 int err;
4c476991 1660 struct net_device *dev = info->user_ptr[1];
41ade00f 1661
b9454e83
JB		 1662 err = nl80211_parse_key(info, &key);
1663 if (err)
1664 return err;
41ade00f 1665
b9454e83 1666 if (key.idx < 0)
41ade00f
JB		 1667 return -EINVAL;
1668
b9454e83
JB		 1669 /* only support setting default key */
1670 if (!key.def && !key.defmgmt)
41ade00f
JB		 1671 return -EINVAL;
1672
dbd2fd65 1673 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1674
dbd2fd65
JB		 1675 if (key.def) {
1676 if (!rdev->ops->set_default_key) {
1677 err = -EOPNOTSUPP;
1678 goto out;
1679 }
41ade00f 1680
dbd2fd65
JB		 1681 err = nl80211_key_allowed(dev->ieee80211_ptr);
1682 if (err)
1683 goto out;
1684
1685 if (!(rdev->wiphy.flags &
1686 WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) {
1687 if (!key.def_uni || !key.def_multi) {
1688 err = -EOPNOTSUPP;
1689 goto out;
1690 }
1691 }
1692
1693 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1694 key.def_uni, key.def_multi);
1695
1696 if (err)
1697 goto out;
fffd0934 1698
3d23e349 1699#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1700 dev->ieee80211_ptr->wext.default_key = key.idx;
1701#endif
1702 } else {
1703 if (key.def_uni || !key.def_multi) {
1704 err = -EINVAL;
1705 goto out;
1706 }
1707
1708 if (!rdev->ops->set_default_mgmt_key) {
1709 err = -EOPNOTSUPP;
1710 goto out;
1711 }
1712
1713 err = nl80211_key_allowed(dev->ieee80211_ptr);
1714 if (err)
1715 goto out;
1716
1717 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1718 dev, key.idx);
1719 if (err)
1720 goto out;
1721
1722#ifdef CONFIG_CFG80211_WEXT
1723 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1724#endif
dbd2fd65
JB		 1725 }
1726
1727 out:
fffd0934 1728 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1729
41ade00f
JB		 1730 return err;
1731}
1732
1733static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1734{
4c476991 1735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1736 int err;
4c476991 1737 struct net_device *dev = info->user_ptr[1];
b9454e83 1738 struct key_parse key;
e31b8213 1739 const u8 *mac_addr = NULL;
41ade00f 1740
b9454e83
JB		 1741 err = nl80211_parse_key(info, &key);
1742 if (err)
1743 return err;
41ade00f 1744
b9454e83 1745 if (!key.p.key)
41ade00f
JB		 1746 return -EINVAL;
1747
41ade00f
JB		 1748 if (info->attrs[NL80211_ATTR_MAC])
1749 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1750
e31b8213
JB		 1751 if (key.type == -1) {
1752 if (mac_addr)
1753 key.type = NL80211_KEYTYPE_PAIRWISE;
1754 else
1755 key.type = NL80211_KEYTYPE_GROUP;
1756 }
1757
1758 /* for now */
1759 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1760 key.type != NL80211_KEYTYPE_GROUP)
1761 return -EINVAL;
1762
4c476991
JB		 1763 if (!rdev->ops->add_key)
1764 return -EOPNOTSUPP;
25e47c18 1765
e31b8213
JB		 1766 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1767 key.type == NL80211_KEYTYPE_PAIRWISE,
1768 mac_addr))
4c476991 1769 return -EINVAL;
41ade00f 1770
fffd0934
JB		 1771 wdev_lock(dev->ieee80211_ptr);
1772 err = nl80211_key_allowed(dev->ieee80211_ptr);
1773 if (!err)
1774 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1775 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1776 mac_addr, &key.p);
1777 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1778
41ade00f
JB		 1779 return err;
1780}
1781
1782static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1783{
4c476991 1784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1785 int err;
4c476991 1786 struct net_device *dev = info->user_ptr[1];
41ade00f 1787 u8 *mac_addr = NULL;
b9454e83 1788 struct key_parse key;
41ade00f 1789
b9454e83
JB		 1790 err = nl80211_parse_key(info, &key);
1791 if (err)
1792 return err;
41ade00f
JB		 1793
1794 if (info->attrs[NL80211_ATTR_MAC])
1795 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1796
e31b8213
JB		 1797 if (key.type == -1) {
1798 if (mac_addr)
1799 key.type = NL80211_KEYTYPE_PAIRWISE;
1800 else
1801 key.type = NL80211_KEYTYPE_GROUP;
1802 }
1803
1804 /* for now */
1805 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1806 key.type != NL80211_KEYTYPE_GROUP)
1807 return -EINVAL;
1808
4c476991
JB		 1809 if (!rdev->ops->del_key)
1810 return -EOPNOTSUPP;
41ade00f 1811
fffd0934
JB		 1812 wdev_lock(dev->ieee80211_ptr);
1813 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1814
1815 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1816 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1817 err = -ENOENT;
1818
fffd0934 1819 if (!err)
e31b8213
JB		 1820 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1821 key.type == NL80211_KEYTYPE_PAIRWISE,
1822 mac_addr);
41ade00f 1823
3d23e349 1824#ifdef CONFIG_CFG80211_WEXT
08645126 1825 if (!err) {
b9454e83 1826 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1827 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1828 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1829 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1830 }
1831#endif
fffd0934 1832 wdev_unlock(dev->ieee80211_ptr);
08645126 1833
41ade00f
JB		 1834 return err;
1835}
1836
ed1b6cc7
JB		 1837static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1838{
1839 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1840 struct beacon_parameters *info);
4c476991
JB		 1841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1842 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1843 struct beacon_parameters params;
1844 int haveinfo = 0;
1845
f4a11bb0
JB		 1846 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1847 return -EINVAL;
1848
074ac8df 1849 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1850 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1851 return -EOPNOTSUPP;
eec60b03 1852
ed1b6cc7
JB		 1853 switch (info->genlhdr->cmd) {
1854 case NL80211_CMD_NEW_BEACON:
1855 /* these are required for NEW_BEACON */
1856 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1857 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1858 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1859 return -EINVAL;
ed1b6cc7 1860
79c97e97 1861 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1862 break;
1863 case NL80211_CMD_SET_BEACON:
79c97e97 1864 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1865 break;
1866 default:
1867 WARN_ON(1);
4c476991 1868 return -EOPNOTSUPP;
ed1b6cc7
JB		 1869 }
1870
4c476991
JB		 1871 if (!call)
1872 return -EOPNOTSUPP;
ed1b6cc7
JB		 1873
1874 memset(&params, 0, sizeof(params));
1875
1876 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1877 params.interval =
1878 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1879 haveinfo = 1;
1880 }
1881
1882 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1883 params.dtim_period =
1884 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1885 haveinfo = 1;
1886 }
1887
1888 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1889 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1890 params.head_len =
1891 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1892 haveinfo = 1;
1893 }
1894
1895 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1896 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1897 params.tail_len =
1898 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1899 haveinfo = 1;
1900 }
1901
4c476991
JB		 1902 if (!haveinfo)
1903 return -EINVAL;
3b85875a 1904
4c476991 1905 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1906}
1907
1908static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1909{
4c476991
JB		 1910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1911 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1912
4c476991
JB		 1913 if (!rdev->ops->del_beacon)
1914 return -EOPNOTSUPP;
ed1b6cc7 1915
074ac8df 1916 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1917 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1918 return -EOPNOTSUPP;
3b85875a 1919
4c476991 1920 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1921}
1922
5727ef1b
JB		 1923static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1924 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1925 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1926 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1927 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 1928 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 1929};
1930
eccb8e8f
JB		 1931static int parse_station_flags(struct genl_info *info,
1932 struct station_parameters *params)
5727ef1b
JB		 1933{
1934 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1935 struct nlattr *nla;
5727ef1b
JB		 1936 int flag;
1937
eccb8e8f
JB		 1938 /*
1939 * Try parsing the new attribute first so userspace
1940 * can specify both for older kernels.
1941 */
1942 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1943 if (nla) {
1944 struct nl80211_sta_flag_update *sta_flags;
1945
1946 sta_flags = nla_data(nla);
1947 params->sta_flags_mask = sta_flags->mask;
1948 params->sta_flags_set = sta_flags->set;
1949 if ((params->sta_flags_mask |
1950 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1951 return -EINVAL;
1952 return 0;
1953 }
1954
1955 /* if present, parse the old attribute */
5727ef1b 1956
eccb8e8f 1957 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1958 if (!nla)
1959 return 0;
1960
1961 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1962 nla, sta_flags_policy))
1963 return -EINVAL;
1964
eccb8e8f
JB		 1965 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1966 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1967
1968 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1969 if (flags[flag])
eccb8e8f 1970 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1971
1972 return 0;
1973}
1974
c8dcfd8a
FF		 1975static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
1976 int attr)
1977{
1978 struct nlattr *rate;
1979 u16 bitrate;
1980
1981 rate = nla_nest_start(msg, attr);
1982 if (!rate)
1983 goto nla_put_failure;
1984
1985 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1986 bitrate = cfg80211_calculate_bitrate(info);
1987 if (bitrate > 0)
1988 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1989
1990 if (info->flags & RATE_INFO_FLAGS_MCS)
1991 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
1992 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1993 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1994 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
1995 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1996
1997 nla_nest_end(msg, rate);
1998 return true;
1999
2000nla_put_failure:
2001 return false;
2002}
2003
fd5b74dc
JB		 2004static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2005 int flags, struct net_device *dev,
98b62183 2006 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2007{
2008 void *hdr;
f4263c98 2009 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2010
2011 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2012 if (!hdr)
2013 return -1;
2014
2015 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2016 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2017
f5ea9120
JB		 2018 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2019
2ec600d6
LCC		 2020 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2021 if (!sinfoattr)
fd5b74dc 2022 goto nla_put_failure;
2ec600d6
LCC		 2023 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2024 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2025 sinfo->inactive_time);
2026 if (sinfo->filled & STATION_INFO_RX_BYTES)
2027 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2028 sinfo->rx_bytes);
2029 if (sinfo->filled & STATION_INFO_TX_BYTES)
2030 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2031 sinfo->tx_bytes);
2032 if (sinfo->filled & STATION_INFO_LLID)
2033 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2034 sinfo->llid);
2035 if (sinfo->filled & STATION_INFO_PLID)
2036 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2037 sinfo->plid);
2038 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2039 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2040 sinfo->plink_state);
420e7fab
HR		 2041 if (sinfo->filled & STATION_INFO_SIGNAL)
2042 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2043 sinfo->signal);
541a45a1
BR		 2044 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2045 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2046 sinfo->signal_avg);
420e7fab 2047 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2048 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2049 NL80211_STA_INFO_TX_BITRATE))
2050 goto nla_put_failure;
2051 }
2052 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2053 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2054 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2055 goto nla_put_failure;
420e7fab 2056 }
98c8a60a
JM		 2057 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2058 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2059 sinfo->rx_packets);
2060 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2061 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2062 sinfo->tx_packets);
b206b4ef
BR		 2063 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2064 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2065 sinfo->tx_retries);
2066 if (sinfo->filled & STATION_INFO_TX_FAILED)
2067 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2068 sinfo->tx_failed);
f4263c98
PS		 2069 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2070 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2071 if (!bss_param)
2072 goto nla_put_failure;
2073
2074 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2075 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2076 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2077 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2078 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2079 NLA_PUT_FLAG(msg,
2080 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2081 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2082 sinfo->bss_param.dtim_period);
2083 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2084 sinfo->bss_param.beacon_interval);
2085
2086 nla_nest_end(msg, bss_param);
2087 }
2ec600d6 2088 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 2089
2090 return genlmsg_end(msg, hdr);
2091
2092 nla_put_failure:
bc3ed28c
TG		 2093 genlmsg_cancel(msg, hdr);
2094 return -EMSGSIZE;
fd5b74dc
JB		 2095}
2096
2ec600d6 2097static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2098 struct netlink_callback *cb)
2ec600d6 2099{
2ec600d6
LCC		 2100 struct station_info sinfo;
2101 struct cfg80211_registered_device *dev;
bba95fef 2102 struct net_device *netdev;
2ec600d6 2103 u8 mac_addr[ETH_ALEN];
bba95fef 2104 int sta_idx = cb->args[1];
2ec600d6 2105 int err;
2ec600d6 2106
67748893
JB		 2107 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2108 if (err)
2109 return err;
bba95fef
JB		 2110
2111 if (!dev->ops->dump_station) {
eec60b03 2112 err = -EOPNOTSUPP;
bba95fef
JB		 2113 goto out_err;
2114 }
2115
bba95fef
JB		 2116 while (1) {
2117 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2118 mac_addr, &sinfo);
2119 if (err == -ENOENT)
2120 break;
2121 if (err)
3b85875a 2122 goto out_err;
bba95fef
JB		 2123
2124 if (nl80211_send_station(skb,
2125 NETLINK_CB(cb->skb).pid,
2126 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2127 netdev, mac_addr,
2128 &sinfo) < 0)
2129 goto out;
2130
2131 sta_idx++;
2132 }
2133
2134
2135 out:
2136 cb->args[1] = sta_idx;
2137 err = skb->len;
bba95fef 2138 out_err:
67748893 2139 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2140
2141 return err;
2ec600d6 2142}
fd5b74dc 2143
5727ef1b
JB		 2144static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2145{
4c476991
JB		 2146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2147 struct net_device *dev = info->user_ptr[1];
2ec600d6 2148 struct station_info sinfo;
fd5b74dc
JB		 2149 struct sk_buff *msg;
2150 u8 *mac_addr = NULL;
4c476991 2151 int err;
fd5b74dc 2152
2ec600d6 2153 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2154
2155 if (!info->attrs[NL80211_ATTR_MAC])
2156 return -EINVAL;
2157
2158 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2159
4c476991
JB		 2160 if (!rdev->ops->get_station)
2161 return -EOPNOTSUPP;
3b85875a 2162
4c476991 2163 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2164 if (err)
4c476991 2165 return err;
2ec600d6 2166
fd2120ca 2167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2168 if (!msg)
4c476991 2169 return -ENOMEM;
fd5b74dc
JB		 2170
2171 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2172 dev, mac_addr, &sinfo) < 0) {
2173 nlmsg_free(msg);
2174 return -ENOBUFS;
2175 }
3b85875a 2176
4c476991 2177 return genlmsg_reply(msg, info);
5727ef1b
JB		 2178}
2179
2180/*
c258d2de 2181 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2182 */
463d0183 2183static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2184 struct cfg80211_registered_device *rdev,
2185 struct net_device **vlan)
2186{
463d0183 2187 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2188 *vlan = NULL;
2189
2190 if (vlanattr) {
463d0183
JB		 2191 *vlan = dev_get_by_index(genl_info_net(info),
2192 nla_get_u32(vlanattr));
5727ef1b
JB		 2193 if (!*vlan)
2194 return -ENODEV;
2195 if (!(*vlan)->ieee80211_ptr)
2196 return -EINVAL;
2197 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2198 return -EINVAL;
c258d2de
FF		 2199 if (!netif_running(*vlan))
2200 return -ENETDOWN;
5727ef1b
JB		 2201 }
2202 return 0;
2203}
2204
2205static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2206{
4c476991 2207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2208 int err;
4c476991 2209 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2210 struct station_parameters params;
2211 u8 *mac_addr = NULL;
2212
2213 memset(&params, 0, sizeof(params));
2214
2215 params.listen_interval = -1;
2216
2217 if (info->attrs[NL80211_ATTR_STA_AID])
2218 return -EINVAL;
2219
2220 if (!info->attrs[NL80211_ATTR_MAC])
2221 return -EINVAL;
2222
2223 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2224
2225 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2226 params.supported_rates =
2227 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2228 params.supported_rates_len =
2229 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2230 }
2231
2232 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2233 params.listen_interval =
2234 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2235
36aedc90
JM		 2236 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2237 params.ht_capa =
2238 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2239
eccb8e8f 2240 if (parse_station_flags(info, &params))
5727ef1b
JB		 2241 return -EINVAL;
2242
2ec600d6
LCC		 2243 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2244 params.plink_action =
2245 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2246
463d0183 2247 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2248 if (err)
034d655e 2249 goto out;
a97f4424
JB		 2250
2251 /* validate settings */
2252 err = 0;
2253
2254 switch (dev->ieee80211_ptr->iftype) {
2255 case NL80211_IFTYPE_AP:
2256 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2257 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2258 /* disallow mesh-specific things */
2259 if (params.plink_action)
2260 err = -EINVAL;
2261 break;
074ac8df 2262 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2263 case NL80211_IFTYPE_STATION:
2264 /* disallow everything but AUTHORIZED flag */
2265 if (params.plink_action)
2266 err = -EINVAL;
2267 if (params.vlan)
2268 err = -EINVAL;
2269 if (params.supported_rates)
2270 err = -EINVAL;
2271 if (params.ht_capa)
2272 err = -EINVAL;
2273 if (params.listen_interval >= 0)
2274 err = -EINVAL;
2275 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2276 err = -EINVAL;
2277 break;
2278 case NL80211_IFTYPE_MESH_POINT:
2279 /* disallow things mesh doesn't support */
2280 if (params.vlan)
2281 err = -EINVAL;
2282 if (params.ht_capa)
2283 err = -EINVAL;
2284 if (params.listen_interval >= 0)
2285 err = -EINVAL;
2286 if (params.supported_rates)
2287 err = -EINVAL;
b39c48fa
JC		 2288 if (params.sta_flags_mask &
2289 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2290 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2291 err = -EINVAL;
2292 break;
2293 default:
2294 err = -EINVAL;
034d655e
JB		 2295 }
2296
5727ef1b
JB		 2297 if (err)
2298 goto out;
2299
79c97e97 2300 if (!rdev->ops->change_station) {
5727ef1b
JB		 2301 err = -EOPNOTSUPP;
2302 goto out;
2303 }
2304
79c97e97 2305 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2306
2307 out:
2308 if (params.vlan)
2309 dev_put(params.vlan);
3b85875a 2310
5727ef1b
JB		 2311 return err;
2312}
2313
2314static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2315{
4c476991 2316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2317 int err;
4c476991 2318 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2319 struct station_parameters params;
2320 u8 *mac_addr = NULL;
2321
2322 memset(&params, 0, sizeof(params));
2323
2324 if (!info->attrs[NL80211_ATTR_MAC])
2325 return -EINVAL;
2326
5727ef1b
JB		 2327 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2328 return -EINVAL;
2329
2330 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2331 return -EINVAL;
2332
0e956c13
TLSC		 2333 if (!info->attrs[NL80211_ATTR_STA_AID])
2334 return -EINVAL;
2335
5727ef1b
JB		 2336 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2337 params.supported_rates =
2338 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2339 params.supported_rates_len =
2340 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2341 params.listen_interval =
2342 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2343
0e956c13
TLSC		 2344 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2345 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2346 return -EINVAL;
51b50fbe 2347
36aedc90
JM		 2348 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2349 params.ht_capa =
2350 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2351
eccb8e8f 2352 if (parse_station_flags(info, &params))
5727ef1b
JB		 2353 return -EINVAL;
2354
0e956c13 2355 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2356 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2357 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2358 return -EINVAL;
0e956c13 2359
463d0183 2360 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2361 if (err)
e80cf853 2362 goto out;
a97f4424
JB		 2363
2364 /* validate settings */
2365 err = 0;
2366
79c97e97 2367 if (!rdev->ops->add_station) {
5727ef1b
JB		 2368 err = -EOPNOTSUPP;
2369 goto out;
2370 }
2371
79c97e97 2372 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2373
2374 out:
2375 if (params.vlan)
2376 dev_put(params.vlan);
5727ef1b
JB		 2377 return err;
2378}
2379
2380static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2381{
4c476991
JB		 2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2383 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2384 u8 *mac_addr = NULL;
2385
2386 if (info->attrs[NL80211_ATTR_MAC])
2387 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2388
e80cf853 2389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2392 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2393 return -EINVAL;
5727ef1b 2394
4c476991
JB		 2395 if (!rdev->ops->del_station)
2396 return -EOPNOTSUPP;
3b85875a 2397
4c476991 2398 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2399}
2400
2ec600d6
LCC		 2401static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2402 int flags, struct net_device *dev,
2403 u8 *dst, u8 *next_hop,
2404 struct mpath_info *pinfo)
2405{
2406 void *hdr;
2407 struct nlattr *pinfoattr;
2408
2409 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2410 if (!hdr)
2411 return -1;
2412
2413 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2414 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2415 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2416
f5ea9120
JB		 2417 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2418
2ec600d6
LCC		 2419 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2420 if (!pinfoattr)
2421 goto nla_put_failure;
2422 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2423 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2424 pinfo->frame_qlen);
d19b3bf6
RP		 2425 if (pinfo->filled & MPATH_INFO_SN)
2426 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2427 pinfo->sn);
2ec600d6
LCC		 2428 if (pinfo->filled & MPATH_INFO_METRIC)
2429 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2430 pinfo->metric);
2431 if (pinfo->filled & MPATH_INFO_EXPTIME)
2432 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2433 pinfo->exptime);
2434 if (pinfo->filled & MPATH_INFO_FLAGS)
2435 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2436 pinfo->flags);
2437 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2438 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2439 pinfo->discovery_timeout);
2440 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2441 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2442 pinfo->discovery_retries);
2443
2444 nla_nest_end(msg, pinfoattr);
2445
2446 return genlmsg_end(msg, hdr);
2447
2448 nla_put_failure:
bc3ed28c
TG		 2449 genlmsg_cancel(msg, hdr);
2450 return -EMSGSIZE;
2ec600d6
LCC		 2451}
2452
2453static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2454 struct netlink_callback *cb)
2ec600d6 2455{
2ec600d6
LCC		 2456 struct mpath_info pinfo;
2457 struct cfg80211_registered_device *dev;
bba95fef 2458 struct net_device *netdev;
2ec600d6
LCC		 2459 u8 dst[ETH_ALEN];
2460 u8 next_hop[ETH_ALEN];
bba95fef 2461 int path_idx = cb->args[1];
2ec600d6 2462 int err;
2ec600d6 2463
67748893
JB		 2464 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2465 if (err)
2466 return err;
bba95fef
JB		 2467
2468 if (!dev->ops->dump_mpath) {
eec60b03 2469 err = -EOPNOTSUPP;
bba95fef
JB		 2470 goto out_err;
2471 }
2472
eec60b03
JM		 2473 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2474 err = -EOPNOTSUPP;
0448b5fc 2475 goto out_err;
eec60b03
JM		 2476 }
2477
bba95fef
JB		 2478 while (1) {
2479 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2480 dst, next_hop, &pinfo);
2481 if (err == -ENOENT)
2ec600d6 2482 break;
bba95fef 2483 if (err)
3b85875a 2484 goto out_err;
2ec600d6 2485
bba95fef
JB		 2486 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2487 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2488 netdev, dst, next_hop,
2489 &pinfo) < 0)
2490 goto out;
2ec600d6 2491
bba95fef 2492 path_idx++;
2ec600d6 2493 }
2ec600d6 2494
2ec600d6 2495
bba95fef
JB		 2496 out:
2497 cb->args[1] = path_idx;
2498 err = skb->len;
bba95fef 2499 out_err:
67748893 2500 nl80211_finish_netdev_dump(dev);
bba95fef 2501 return err;
2ec600d6
LCC		 2502}
2503
2504static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2505{
4c476991 2506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2507 int err;
4c476991 2508 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2509 struct mpath_info pinfo;
2510 struct sk_buff *msg;
2511 u8 *dst = NULL;
2512 u8 next_hop[ETH_ALEN];
2513
2514 memset(&pinfo, 0, sizeof(pinfo));
2515
2516 if (!info->attrs[NL80211_ATTR_MAC])
2517 return -EINVAL;
2518
2519 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2520
4c476991
JB		 2521 if (!rdev->ops->get_mpath)
2522 return -EOPNOTSUPP;
2ec600d6 2523
4c476991
JB		 2524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2525 return -EOPNOTSUPP;
eec60b03 2526
79c97e97 2527 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2528 if (err)
4c476991 2529 return err;
2ec600d6 2530
fd2120ca 2531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2532 if (!msg)
4c476991 2533 return -ENOMEM;
2ec600d6
LCC		 2534
2535 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2536 dev, dst, next_hop, &pinfo) < 0) {
2537 nlmsg_free(msg);
2538 return -ENOBUFS;
2539 }
3b85875a 2540
4c476991 2541 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2542}
2543
2544static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2545{
4c476991
JB		 2546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2547 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2548 u8 *dst = NULL;
2549 u8 *next_hop = NULL;
2550
2551 if (!info->attrs[NL80211_ATTR_MAC])
2552 return -EINVAL;
2553
2554 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2555 return -EINVAL;
2556
2557 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2558 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2559
4c476991
JB		 2560 if (!rdev->ops->change_mpath)
2561 return -EOPNOTSUPP;
35a8efe1 2562
4c476991
JB		 2563 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2564 return -EOPNOTSUPP;
2ec600d6 2565
4c476991 2566 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2567}
4c476991 2568
2ec600d6
LCC		 2569static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2570{
4c476991
JB		 2571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2572 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2573 u8 *dst = NULL;
2574 u8 *next_hop = NULL;
2575
2576 if (!info->attrs[NL80211_ATTR_MAC])
2577 return -EINVAL;
2578
2579 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2580 return -EINVAL;
2581
2582 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2583 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2584
4c476991
JB		 2585 if (!rdev->ops->add_mpath)
2586 return -EOPNOTSUPP;
35a8efe1 2587
4c476991
JB		 2588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2589 return -EOPNOTSUPP;
2ec600d6 2590
4c476991 2591 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2592}
2593
2594static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2595{
4c476991
JB		 2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2598 u8 *dst = NULL;
2599
2600 if (info->attrs[NL80211_ATTR_MAC])
2601 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2602
4c476991
JB		 2603 if (!rdev->ops->del_mpath)
2604 return -EOPNOTSUPP;
3b85875a 2605
4c476991 2606 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2607}
2608
9f1ba906
JM		 2609static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2610{
4c476991
JB		 2611 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2612 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2613 struct bss_parameters params;
2614
2615 memset(&params, 0, sizeof(params));
2616 /* default to not changing parameters */
2617 params.use_cts_prot = -1;
2618 params.use_short_preamble = -1;
2619 params.use_short_slot_time = -1;
fd8aaaf3 2620 params.ap_isolate = -1;
50b12f59 2621 params.ht_opmode = -1;
9f1ba906
JM		 2622
2623 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2624 params.use_cts_prot =
2625 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2626 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2627 params.use_short_preamble =
2628 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2629 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2630 params.use_short_slot_time =
2631 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2632 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2633 params.basic_rates =
2634 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2635 params.basic_rates_len =
2636 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2637 }
fd8aaaf3
FF		 2638 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2639 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2640 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2641 params.ht_opmode =
2642 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2643
4c476991
JB		 2644 if (!rdev->ops->change_bss)
2645 return -EOPNOTSUPP;
9f1ba906 2646
074ac8df 2647 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2648 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2649 return -EOPNOTSUPP;
3b85875a 2650
4c476991 2651 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2652}
2653
b54452b0 2654static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2655 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2656 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2657 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2658 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2659 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2660 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2661};
2662
2663static int parse_reg_rule(struct nlattr *tb[],
2664 struct ieee80211_reg_rule *reg_rule)
2665{
2666 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2667 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2668
2669 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2670 return -EINVAL;
2671 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2672 return -EINVAL;
2673 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2674 return -EINVAL;
2675 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2676 return -EINVAL;
2677 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2678 return -EINVAL;
2679
2680 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2681
2682 freq_range->start_freq_khz =
2683 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2684 freq_range->end_freq_khz =
2685 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2686 freq_range->max_bandwidth_khz =
2687 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2688
2689 power_rule->max_eirp =
2690 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2691
2692 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2693 power_rule->max_antenna_gain =
2694 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2695
2696 return 0;
2697}
2698
2699static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2700{
2701 int r;
2702 char *data = NULL;
2703
80778f18
LR		 2704 /*
2705 * You should only get this when cfg80211 hasn't yet initialized
2706 * completely when built-in to the kernel right between the time
2707 * window between nl80211_init() and regulatory_init(), if that is
2708 * even possible.
2709 */
2710 mutex_lock(&cfg80211_mutex);
2711 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2712 mutex_unlock(&cfg80211_mutex);
2713 return -EINPROGRESS;
80778f18 2714 }
fe33eb39 2715 mutex_unlock(&cfg80211_mutex);
80778f18 2716
fe33eb39
LR		 2717 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2718 return -EINVAL;
b2e1b302
LR		 2719
2720 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2721
fe33eb39
LR		 2722 r = regulatory_hint_user(data);
2723
b2e1b302
LR		 2724 return r;
2725}
2726
24bdd9f4 2727static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 2728 struct genl_info *info)
93da9cc1 2729{
4c476991 2730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2731 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2732 struct wireless_dev *wdev = dev->ieee80211_ptr;
2733 struct mesh_config cur_params;
2734 int err = 0;
93da9cc1 2735 void *hdr;
2736 struct nlattr *pinfoattr;
2737 struct sk_buff *msg;
2738
29cbe68c
JB		 2739 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2740 return -EOPNOTSUPP;
2741
24bdd9f4 2742 if (!rdev->ops->get_mesh_config)
4c476991 2743 return -EOPNOTSUPP;
f3f92586 2744
29cbe68c
JB		 2745 wdev_lock(wdev);
2746 /* If not connected, get default parameters */
2747 if (!wdev->mesh_id_len)
2748 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2749 else
24bdd9f4 2750 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2751 &cur_params);
2752 wdev_unlock(wdev);
2753
93da9cc1 2754 if (err)
4c476991 2755 return err;
93da9cc1 2756
2757 /* Draw up a netlink message to send back */
fd2120ca 2758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2759 if (!msg)
2760 return -ENOMEM;
93da9cc1 2761 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 2762 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 2763 if (!hdr)
efe1cf0c 2764 goto out;
24bdd9f4 2765 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 2766 if (!pinfoattr)
2767 goto nla_put_failure;
2768 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2769 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2770 cur_params.dot11MeshRetryTimeout);
2771 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2772 cur_params.dot11MeshConfirmTimeout);
2773 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2774 cur_params.dot11MeshHoldingTimeout);
2775 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2776 cur_params.dot11MeshMaxPeerLinks);
2777 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2778 cur_params.dot11MeshMaxRetries);
2779 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2780 cur_params.dot11MeshTTL);
45904f21
JC		 2781 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2782 cur_params.element_ttl);
93da9cc1 2783 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2784 cur_params.auto_open_plinks);
2785 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2786 cur_params.dot11MeshHWMPmaxPREQretries);
2787 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2788 cur_params.path_refresh_time);
2789 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2790 cur_params.min_discovery_timeout);
2791 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2792 cur_params.dot11MeshHWMPactivePathTimeout);
2793 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2794 cur_params.dot11MeshHWMPpreqMinInterval);
2795 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2796 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2797 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2798 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2799 nla_nest_end(msg, pinfoattr);
2800 genlmsg_end(msg, hdr);
4c476991 2801 return genlmsg_reply(msg, info);
93da9cc1 2802
3b85875a 2803 nla_put_failure:
93da9cc1 2804 genlmsg_cancel(msg, hdr);
efe1cf0c 2805 out:
d080e275 2806 nlmsg_free(msg);
4c476991 2807 return -ENOBUFS;
93da9cc1 2808}
2809
b54452b0 2810static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2811 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2812 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2813 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2814 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2815 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2816 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2817 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2818 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2819
2820 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2821 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2822 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2823 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2824 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2825 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2826};
2827
c80d545d
JC		 2828static const struct nla_policy
2829 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2830 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2831 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 2832 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 2833 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d
JC		 2834 .len = IEEE80211_MAX_DATA_LEN },
2835};
2836
24bdd9f4 2837static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 2838 struct mesh_config *cfg,
2839 u32 *mask_out)
93da9cc1 2840{
93da9cc1 2841 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2842 u32 mask = 0;
93da9cc1 2843
bd90fdcc
JB		 2844#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2845do {\
2846 if (table[attr_num]) {\
2847 cfg->param = nla_fn(table[attr_num]); \
2848 mask |= (1 << (attr_num - 1)); \
2849 } \
2850} while (0);\
2851
2852
24bdd9f4 2853 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 2854 return -EINVAL;
2855 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 2856 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 2857 nl80211_meshconf_params_policy))
93da9cc1 2858 return -EINVAL;
2859
93da9cc1 2860 /* This makes sure that there aren't more than 32 mesh config
2861 * parameters (otherwise our bitfield scheme would not work.) */
2862 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2863
2864 /* Fill in the params struct */
93da9cc1 2865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2866 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2868 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2870 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2871 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2872 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2874 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2875 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2876 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2878 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2880 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2882 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2883 nla_get_u8);
2884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2885 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2887 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2888 nla_get_u16);
2889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2890 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2891 nla_get_u32);
2892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2893 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2894 nla_get_u16);
2895 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2896 dot11MeshHWMPnetDiameterTraversalTime,
2897 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2898 nla_get_u16);
63c5723b
RP		 2899 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2900 dot11MeshHWMPRootMode, mask,
2901 NL80211_MESHCONF_HWMP_ROOTMODE,
2902 nla_get_u8);
bd90fdcc
JB		 2903 if (mask_out)
2904 *mask_out = mask;
c80d545d 2905
bd90fdcc
JB		 2906 return 0;
2907
2908#undef FILL_IN_MESH_PARAM_IF_SET
2909}
2910
c80d545d
JC		 2911static int nl80211_parse_mesh_setup(struct genl_info *info,
2912 struct mesh_setup *setup)
2913{
2914 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
2915
2916 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
2917 return -EINVAL;
2918 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
2919 info->attrs[NL80211_ATTR_MESH_SETUP],
2920 nl80211_mesh_setup_params_policy))
2921 return -EINVAL;
2922
2923 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
2924 setup->path_sel_proto =
2925 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
2926 IEEE80211_PATH_PROTOCOL_VENDOR :
2927 IEEE80211_PATH_PROTOCOL_HWMP;
2928
2929 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
2930 setup->path_metric =
2931 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
2932 IEEE80211_PATH_METRIC_VENDOR :
2933 IEEE80211_PATH_METRIC_AIRTIME;
2934
581a8b0f
JC		 2935
2936 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 2937 struct nlattr *ieattr =
581a8b0f 2938 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 2939 if (!is_valid_ie_attr(ieattr))
2940 return -EINVAL;
581a8b0f
JC		 2941 setup->ie = nla_data(ieattr);
2942 setup->ie_len = nla_len(ieattr);
c80d545d 2943 }
15d5dda6 2944 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
c80d545d
JC		 2945
2946 return 0;
2947}
2948
24bdd9f4 2949static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 2950 struct genl_info *info)
bd90fdcc
JB		 2951{
2952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2953 struct net_device *dev = info->user_ptr[1];
29cbe68c 2954 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 2955 struct mesh_config cfg;
2956 u32 mask;
2957 int err;
2958
29cbe68c
JB		 2959 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2960 return -EOPNOTSUPP;
2961
24bdd9f4 2962 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 2963 return -EOPNOTSUPP;
2964
24bdd9f4 2965 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 2966 if (err)
2967 return err;
2968
29cbe68c
JB		 2969 wdev_lock(wdev);
2970 if (!wdev->mesh_id_len)
2971 err = -ENOLINK;
2972
2973 if (!err)
24bdd9f4 2974 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2975 mask, &cfg);
2976
2977 wdev_unlock(wdev);
2978
2979 return err;
93da9cc1 2980}
2981
f130347c
LR		 2982static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2983{
2984 struct sk_buff *msg;
2985 void *hdr = NULL;
2986 struct nlattr *nl_reg_rules;
2987 unsigned int i;
2988 int err = -EINVAL;
2989
a1794390 2990 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2991
2992 if (!cfg80211_regdomain)
2993 goto out;
2994
fd2120ca 2995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2996 if (!msg) {
2997 err = -ENOBUFS;
2998 goto out;
2999 }
3000
3001 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3002 NL80211_CMD_GET_REG);
3003 if (!hdr)
efe1cf0c 3004 goto put_failure;
f130347c
LR		 3005
3006 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3007 cfg80211_regdomain->alpha2);
3008
3009 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3010 if (!nl_reg_rules)
3011 goto nla_put_failure;
3012
3013 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3014 struct nlattr *nl_reg_rule;
3015 const struct ieee80211_reg_rule *reg_rule;
3016 const struct ieee80211_freq_range *freq_range;
3017 const struct ieee80211_power_rule *power_rule;
3018
3019 reg_rule = &cfg80211_regdomain->reg_rules[i];
3020 freq_range = &reg_rule->freq_range;
3021 power_rule = &reg_rule->power_rule;
3022
3023 nl_reg_rule = nla_nest_start(msg, i);
3024 if (!nl_reg_rule)
3025 goto nla_put_failure;
3026
3027 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3028 reg_rule->flags);
3029 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3030 freq_range->start_freq_khz);
3031 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3032 freq_range->end_freq_khz);
3033 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3034 freq_range->max_bandwidth_khz);
3035 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3036 power_rule->max_antenna_gain);
3037 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3038 power_rule->max_eirp);
3039
3040 nla_nest_end(msg, nl_reg_rule);
3041 }
3042
3043 nla_nest_end(msg, nl_reg_rules);
3044
3045 genlmsg_end(msg, hdr);
134e6375 3046 err = genlmsg_reply(msg, info);
f130347c
LR		 3047 goto out;
3048
3049nla_put_failure:
3050 genlmsg_cancel(msg, hdr);
efe1cf0c 3051put_failure:
d080e275 3052 nlmsg_free(msg);
f130347c
LR		 3053 err = -EMSGSIZE;
3054out:
a1794390 3055 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3056 return err;
3057}
3058
b2e1b302
LR		 3059static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3060{
3061 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3062 struct nlattr *nl_reg_rule;
3063 char *alpha2 = NULL;
3064 int rem_reg_rules = 0, r = 0;
3065 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3066 struct ieee80211_regdomain *rd = NULL;
3067
3068 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3069 return -EINVAL;
3070
3071 if (!info->attrs[NL80211_ATTR_REG_RULES])
3072 return -EINVAL;
3073
3074 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3075
3076 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3077 rem_reg_rules) {
3078 num_rules++;
3079 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3080 return -EINVAL;
b2e1b302
LR		 3081 }
3082
61405e97
LR		 3083 mutex_lock(&cfg80211_mutex);
3084
d0e18f83
LR		 3085 if (!reg_is_valid_request(alpha2)) {
3086 r = -EINVAL;
3087 goto bad_reg;
3088 }
b2e1b302
LR		 3089
3090 size_of_regd = sizeof(struct ieee80211_regdomain) +
3091 (num_rules * sizeof(struct ieee80211_reg_rule));
3092
3093 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3094 if (!rd) {
3095 r = -ENOMEM;
3096 goto bad_reg;
3097 }
b2e1b302
LR		 3098
3099 rd->n_reg_rules = num_rules;
3100 rd->alpha2[0] = alpha2[0];
3101 rd->alpha2[1] = alpha2[1];
3102
3103 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3104 rem_reg_rules) {
3105 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3106 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3107 reg_rule_policy);
3108 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3109 if (r)
3110 goto bad_reg;
3111
3112 rule_idx++;
3113
d0e18f83
LR		 3114 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3115 r = -EINVAL;
b2e1b302 3116 goto bad_reg;
d0e18f83 3117 }
b2e1b302
LR		 3118 }
3119
3120 BUG_ON(rule_idx != num_rules);
3121
b2e1b302 3122 r = set_regdom(rd);
61405e97 3123
a1794390 3124 mutex_unlock(&cfg80211_mutex);
d0e18f83 3125
b2e1b302
LR		 3126 return r;
3127
d2372b31 3128 bad_reg:
61405e97 3129 mutex_unlock(&cfg80211_mutex);
b2e1b302 3130 kfree(rd);
d0e18f83 3131 return r;
b2e1b302
LR		 3132}
3133
83f5e2cf
JB		 3134static int validate_scan_freqs(struct nlattr *freqs)
3135{
3136 struct nlattr *attr1, *attr2;
3137 int n_channels = 0, tmp1, tmp2;
3138
3139 nla_for_each_nested(attr1, freqs, tmp1) {
3140 n_channels++;
3141 /*
3142 * Some hardware has a limited channel list for
3143 * scanning, and it is pretty much nonsensical
3144 * to scan for a channel twice, so disallow that
3145 * and don't require drivers to check that the
3146 * channel list they get isn't longer than what
3147 * they can scan, as long as they can scan all
3148 * the channels they registered at once.
3149 */
3150 nla_for_each_nested(attr2, freqs, tmp2)
3151 if (attr1 != attr2 &&
3152 nla_get_u32(attr1) == nla_get_u32(attr2))
3153 return 0;
3154 }
3155
3156 return n_channels;
3157}
3158
2a519311
JB		 3159static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3160{
4c476991
JB		 3161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3162 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 3163 struct cfg80211_scan_request *request;
3164 struct cfg80211_ssid *ssid;
3165 struct ieee80211_channel *channel;
3166 struct nlattr *attr;
3167 struct wiphy *wiphy;
83f5e2cf 3168 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 3169 enum ieee80211_band band;
70692ad2 3170 size_t ie_len;
2a519311 3171
f4a11bb0
JB		 3172 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3173 return -EINVAL;
3174
79c97e97 3175 wiphy = &rdev->wiphy;
2a519311 3176
4c476991
JB		 3177 if (!rdev->ops->scan)
3178 return -EOPNOTSUPP;
2a519311 3179
4c476991
JB		 3180 if (rdev->scan_req)
3181 return -EBUSY;
2a519311
JB		 3182
3183 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3184 n_channels = validate_scan_freqs(
3185 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3186 if (!n_channels)
3187 return -EINVAL;
2a519311 3188 } else {
83f5e2cf
JB		 3189 n_channels = 0;
3190
2a519311
JB		 3191 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3192 if (wiphy->bands[band])
3193 n_channels += wiphy->bands[band]->n_channels;
3194 }
3195
3196 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3197 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3198 n_ssids++;
3199
4c476991
JB		 3200 if (n_ssids > wiphy->max_scan_ssids)
3201 return -EINVAL;
2a519311 3202
70692ad2
JM		 3203 if (info->attrs[NL80211_ATTR_IE])
3204 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3205 else
3206 ie_len = 0;
3207
4c476991
JB		 3208 if (ie_len > wiphy->max_scan_ie_len)
3209 return -EINVAL;
18a83659 3210
2a519311
JB		 3211 request = kzalloc(sizeof(*request)
3212 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3213 + sizeof(channel) * n_channels
3214 + ie_len, GFP_KERNEL);
4c476991
JB		 3215 if (!request)
3216 return -ENOMEM;
2a519311 3217
2a519311 3218 if (n_ssids)
5ba63533 3219 request->ssids = (void *)&request->channels[n_channels];
2a519311 3220 request->n_ssids = n_ssids;
70692ad2
JM		 3221 if (ie_len) {
3222 if (request->ssids)
3223 request->ie = (void *)(request->ssids + n_ssids);
3224 else
3225 request->ie = (void *)(request->channels + n_channels);
3226 }
2a519311 3227
584991dc 3228 i = 0;
2a519311
JB		 3229 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3230 /* user specified, bail out if channel not found */
2a519311 3231 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3232 struct ieee80211_channel *chan;
3233
3234 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3235
3236 if (!chan) {
2a519311
JB		 3237 err = -EINVAL;
3238 goto out_free;
3239 }
584991dc
JB		 3240
3241 /* ignore disabled channels */
3242 if (chan->flags & IEEE80211_CHAN_DISABLED)
3243 continue;
3244
3245 request->channels[i] = chan;
2a519311
JB		 3246 i++;
3247 }
3248 } else {
3249 /* all channels */
2a519311
JB		 3250 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3251 int j;
3252 if (!wiphy->bands[band])
3253 continue;
3254 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3255 struct ieee80211_channel *chan;
3256
3257 chan = &wiphy->bands[band]->channels[j];
3258
3259 if (chan->flags & IEEE80211_CHAN_DISABLED)
3260 continue;
3261
3262 request->channels[i] = chan;
2a519311
JB		 3263 i++;
3264 }
3265 }
3266 }
3267
584991dc
JB		 3268 if (!i) {
3269 err = -EINVAL;
3270 goto out_free;
3271 }
3272
3273 request->n_channels = i;
3274
2a519311
JB		 3275 i = 0;
3276 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3277 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3278 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3279 err = -EINVAL;
3280 goto out_free;
3281 }
3282 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3283 request->ssids[i].ssid_len = nla_len(attr);
3284 i++;
3285 }
3286 }
3287
70692ad2
JM		 3288 if (info->attrs[NL80211_ATTR_IE]) {
3289 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3290 memcpy((void *)request->ie,
3291 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3292 request->ie_len);
3293 }
3294
463d0183 3295 request->dev = dev;
79c97e97 3296 request->wiphy = &rdev->wiphy;
2a519311 3297
79c97e97
JB		 3298 rdev->scan_req = request;
3299 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3300
463d0183 3301 if (!err) {
79c97e97 3302 nl80211_send_scan_start(rdev, dev);
463d0183 3303 dev_hold(dev);
4c476991 3304 } else {
2a519311 3305 out_free:
79c97e97 3306 rdev->scan_req = NULL;
2a519311
JB		 3307 kfree(request);
3308 }
3b85875a 3309
2a519311
JB		 3310 return err;
3311}
3312
3313static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3314 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3315 struct wireless_dev *wdev,
3316 struct cfg80211_internal_bss *intbss)
2a519311 3317{
48ab905d 3318 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3319 void *hdr;
3320 struct nlattr *bss;
48ab905d
JB		 3321 int i;
3322
3323 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3324
3325 hdr = nl80211hdr_put(msg, pid, seq, flags,
3326 NL80211_CMD_NEW_SCAN_RESULTS);
3327 if (!hdr)
3328 return -1;
3329
f5ea9120 3330 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3332
3333 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3334 if (!bss)
3335 goto nla_put_failure;
3336 if (!is_zero_ether_addr(res->bssid))
3337 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3338 if (res->information_elements && res->len_information_elements)
3339 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3340 res->len_information_elements,
3341 res->information_elements);
34a6eddb
JM		 3342 if (res->beacon_ies && res->len_beacon_ies &&
3343 res->beacon_ies != res->information_elements)
3344 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3345 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3346 if (res->tsf)
3347 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3348 if (res->beacon_interval)
3349 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3350 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3351 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3352 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3353 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3354
77965c97 3355 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3356 case CFG80211_SIGNAL_TYPE_MBM:
3357 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3358 break;
3359 case CFG80211_SIGNAL_TYPE_UNSPEC:
3360 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3361 break;
3362 default:
3363 break;
3364 }
3365
48ab905d 3366 switch (wdev->iftype) {
074ac8df 3367 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3368 case NL80211_IFTYPE_STATION:
3369 if (intbss == wdev->current_bss)
3370 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3371 NL80211_BSS_STATUS_ASSOCIATED);
3372 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3373 if (intbss != wdev->auth_bsses[i])
3374 continue;
3375 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3376 NL80211_BSS_STATUS_AUTHENTICATED);
3377 break;
3378 }
3379 break;
3380 case NL80211_IFTYPE_ADHOC:
3381 if (intbss == wdev->current_bss)
3382 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3383 NL80211_BSS_STATUS_IBSS_JOINED);
3384 break;
3385 default:
3386 break;
3387 }
3388
2a519311
JB		 3389 nla_nest_end(msg, bss);
3390
3391 return genlmsg_end(msg, hdr);
3392
3393 nla_put_failure:
3394 genlmsg_cancel(msg, hdr);
3395 return -EMSGSIZE;
3396}
3397
3398static int nl80211_dump_scan(struct sk_buff *skb,
3399 struct netlink_callback *cb)
3400{
48ab905d
JB		 3401 struct cfg80211_registered_device *rdev;
3402 struct net_device *dev;
2a519311 3403 struct cfg80211_internal_bss *scan;
48ab905d 3404 struct wireless_dev *wdev;
2a519311
JB		 3405 int start = cb->args[1], idx = 0;
3406 int err;
3407
67748893
JB		 3408 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3409 if (err)
3410 return err;
2a519311 3411
48ab905d 3412 wdev = dev->ieee80211_ptr;
2a519311 3413
48ab905d
JB		 3414 wdev_lock(wdev);
3415 spin_lock_bh(&rdev->bss_lock);
3416 cfg80211_bss_expire(rdev);
3417
3418 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3419 if (++idx <= start)
3420 continue;
3421 if (nl80211_send_bss(skb,
3422 NETLINK_CB(cb->skb).pid,
3423 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3424 rdev, wdev, scan) < 0) {
2a519311 3425 idx--;
67748893 3426 break;
2a519311
JB		 3427 }
3428 }
3429
48ab905d
JB		 3430 spin_unlock_bh(&rdev->bss_lock);
3431 wdev_unlock(wdev);
2a519311
JB		 3432
3433 cb->args[1] = idx;
67748893 3434 nl80211_finish_netdev_dump(rdev);
2a519311 3435
67748893 3436 return skb->len;
2a519311
JB		 3437}
3438
61fa713c
HS		 3439static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3440 int flags, struct net_device *dev,
3441 struct survey_info *survey)
3442{
3443 void *hdr;
3444 struct nlattr *infoattr;
3445
3446 /* Survey without a channel doesn't make sense */
3447 if (!survey->channel)
3448 return -EINVAL;
3449
3450 hdr = nl80211hdr_put(msg, pid, seq, flags,
3451 NL80211_CMD_NEW_SURVEY_RESULTS);
3452 if (!hdr)
3453 return -ENOMEM;
3454
3455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3456
3457 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3458 if (!infoattr)
3459 goto nla_put_failure;
3460
3461 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3462 survey->channel->center_freq);
3463 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3464 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3465 survey->noise);
17e5a808
FF		 3466 if (survey->filled & SURVEY_INFO_IN_USE)
3467 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3468 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3469 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3470 survey->channel_time);
3471 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3472 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3473 survey->channel_time_busy);
3474 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3475 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3476 survey->channel_time_ext_busy);
3477 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3478 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3479 survey->channel_time_rx);
3480 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3481 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3482 survey->channel_time_tx);
61fa713c
HS		 3483
3484 nla_nest_end(msg, infoattr);
3485
3486 return genlmsg_end(msg, hdr);
3487
3488 nla_put_failure:
3489 genlmsg_cancel(msg, hdr);
3490 return -EMSGSIZE;
3491}
3492
3493static int nl80211_dump_survey(struct sk_buff *skb,
3494 struct netlink_callback *cb)
3495{
3496 struct survey_info survey;
3497 struct cfg80211_registered_device *dev;
3498 struct net_device *netdev;
61fa713c
HS		 3499 int survey_idx = cb->args[1];
3500 int res;
3501
67748893
JB		 3502 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3503 if (res)
3504 return res;
61fa713c
HS		 3505
3506 if (!dev->ops->dump_survey) {
3507 res = -EOPNOTSUPP;
3508 goto out_err;
3509 }
3510
3511 while (1) {
3512 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3513 &survey);
3514 if (res == -ENOENT)
3515 break;
3516 if (res)
3517 goto out_err;
3518
3519 if (nl80211_send_survey(skb,
3520 NETLINK_CB(cb->skb).pid,
3521 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3522 netdev,
3523 &survey) < 0)
3524 goto out;
3525 survey_idx++;
3526 }
3527
3528 out:
3529 cb->args[1] = survey_idx;
3530 res = skb->len;
3531 out_err:
67748893 3532 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3533 return res;
3534}
3535
255e737e
JM		 3536static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3537{
b23aa676
SO		 3538 return auth_type <= NL80211_AUTHTYPE_MAX;
3539}
3540
3541static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3542{
3543 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3544 NL80211_WPA_VERSION_2));
3545}
3546
3547static bool nl80211_valid_akm_suite(u32 akm)
3548{
3549 return akm == WLAN_AKM_SUITE_8021X ||
3550 akm == WLAN_AKM_SUITE_PSK;
3551}
3552
3553static bool nl80211_valid_cipher_suite(u32 cipher)
3554{
3555 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3556 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3557 cipher == WLAN_CIPHER_SUITE_TKIP ||
3558 cipher == WLAN_CIPHER_SUITE_CCMP ||
3559 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3560}
3561
b23aa676 3562
636a5d36
JM		 3563static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3564{
4c476991
JB		 3565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3566 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3567 struct ieee80211_channel *chan;
3568 const u8 *bssid, *ssid, *ie = NULL;
3569 int err, ssid_len, ie_len = 0;
3570 enum nl80211_auth_type auth_type;
fffd0934 3571 struct key_parse key;
d5cdfacb 3572 bool local_state_change;
636a5d36 3573
f4a11bb0
JB		 3574 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3575 return -EINVAL;
3576
3577 if (!info->attrs[NL80211_ATTR_MAC])
3578 return -EINVAL;
3579
1778092e
JM		 3580 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3581 return -EINVAL;
3582
19957bb3
JB		 3583 if (!info->attrs[NL80211_ATTR_SSID])
3584 return -EINVAL;
3585
3586 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3587 return -EINVAL;
3588
fffd0934
JB		 3589 err = nl80211_parse_key(info, &key);
3590 if (err)
3591 return err;
3592
3593 if (key.idx >= 0) {
e31b8213
JB		 3594 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3595 return -EINVAL;
fffd0934
JB		 3596 if (!key.p.key || !key.p.key_len)
3597 return -EINVAL;
3598 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3599 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3600 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3601 key.p.key_len != WLAN_KEY_LEN_WEP104))
3602 return -EINVAL;
3603 if (key.idx > 4)
3604 return -EINVAL;
3605 } else {
3606 key.p.key_len = 0;
3607 key.p.key = NULL;
3608 }
3609
afea0b7a
JB		 3610 if (key.idx >= 0) {
3611 int i;
3612 bool ok = false;
3613 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3614 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3615 ok = true;
3616 break;
3617 }
3618 }
4c476991
JB		 3619 if (!ok)
3620 return -EINVAL;
afea0b7a
JB		 3621 }
3622
4c476991
JB		 3623 if (!rdev->ops->auth)
3624 return -EOPNOTSUPP;
636a5d36 3625
074ac8df 3626 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3627 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3628 return -EOPNOTSUPP;
eec60b03 3629
19957bb3 3630 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3631 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3632 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3633 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3634 return -EINVAL;
636a5d36 3635
19957bb3
JB		 3636 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3637 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3638
3639 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3640 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3641 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3642 }
3643
19957bb3 3644 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3645 if (!nl80211_valid_auth_type(auth_type))
3646 return -EINVAL;
636a5d36 3647
d5cdfacb
JM		 3648 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3649
4c476991
JB		 3650 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3651 ssid, ssid_len, ie, ie_len,
3652 key.p.key, key.p.key_len, key.idx,
3653 local_state_change);
636a5d36
JM		 3654}
3655
c0692b8f
JB		 3656static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3657 struct genl_info *info,
3dc27d25
JB		 3658 struct cfg80211_crypto_settings *settings,
3659 int cipher_limit)
b23aa676 3660{
c0b2bbd8
JB		 3661 memset(settings, 0, sizeof(*settings));
3662
b23aa676
SO		 3663 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3664
c0692b8f
JB		 3665 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3666 u16 proto;
3667 proto = nla_get_u16(
3668 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3669 settings->control_port_ethertype = cpu_to_be16(proto);
3670 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3671 proto != ETH_P_PAE)
3672 return -EINVAL;
3673 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3674 settings->control_port_no_encrypt = true;
3675 } else
3676 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3677
b23aa676
SO		 3678 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3679 void *data;
3680 int len, i;
3681
3682 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3683 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3684 settings->n_ciphers_pairwise = len / sizeof(u32);
3685
3686 if (len % sizeof(u32))
3687 return -EINVAL;
3688
3dc27d25 3689 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3690 return -EINVAL;
3691
3692 memcpy(settings->ciphers_pairwise, data, len);
3693
3694 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3695 if (!nl80211_valid_cipher_suite(
3696 settings->ciphers_pairwise[i]))
3697 return -EINVAL;
3698 }
3699
3700 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3701 settings->cipher_group =
3702 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3703 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3704 return -EINVAL;
3705 }
3706
3707 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3708 settings->wpa_versions =
3709 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3710 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3711 return -EINVAL;
3712 }
3713
3714 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3715 void *data;
3716 int len, i;
3717
3718 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3719 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3720 settings->n_akm_suites = len / sizeof(u32);
3721
3722 if (len % sizeof(u32))
3723 return -EINVAL;
3724
3725 memcpy(settings->akm_suites, data, len);
3726
3727 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3728 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3729 return -EINVAL;
3730 }
3731
3732 return 0;
3733}
3734
636a5d36
JM		 3735static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3736{
4c476991
JB		 3737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3738 struct net_device *dev = info->user_ptr[1];
19957bb3 3739 struct cfg80211_crypto_settings crypto;
f444de05 3740 struct ieee80211_channel *chan;
3e5d7649 3741 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3742 int err, ssid_len, ie_len = 0;
3743 bool use_mfp = false;
636a5d36 3744
f4a11bb0
JB		 3745 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3746 return -EINVAL;
3747
3748 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3749 !info->attrs[NL80211_ATTR_SSID] ||
3750 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3751 return -EINVAL;
3752
4c476991
JB		 3753 if (!rdev->ops->assoc)
3754 return -EOPNOTSUPP;
636a5d36 3755
074ac8df 3756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3757 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3758 return -EOPNOTSUPP;
eec60b03 3759
19957bb3 3760 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3761
19957bb3
JB		 3762 chan = ieee80211_get_channel(&rdev->wiphy,
3763 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3764 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3765 return -EINVAL;
636a5d36 3766
19957bb3
JB		 3767 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3768 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3769
3770 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3771 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3772 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3773 }
3774
dc6382ce 3775 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3776 enum nl80211_mfp mfp =
dc6382ce 3777 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3778 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3779 use_mfp = true;
4c476991
JB		 3780 else if (mfp != NL80211_MFP_NO)
3781 return -EINVAL;
dc6382ce
JM		 3782 }
3783
3e5d7649
JB		 3784 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3785 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3786
c0692b8f 3787 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3788 if (!err)
3e5d7649
JB		 3789 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3790 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3791 &crypto);
636a5d36 3792
636a5d36
JM		 3793 return err;
3794}
3795
3796static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3797{
4c476991
JB		 3798 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3799 struct net_device *dev = info->user_ptr[1];
19957bb3 3800 const u8 *ie = NULL, *bssid;
4c476991 3801 int ie_len = 0;
19957bb3 3802 u16 reason_code;
d5cdfacb 3803 bool local_state_change;
636a5d36 3804
f4a11bb0
JB		 3805 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3806 return -EINVAL;
3807
3808 if (!info->attrs[NL80211_ATTR_MAC])
3809 return -EINVAL;
3810
3811 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3812 return -EINVAL;
3813
4c476991
JB		 3814 if (!rdev->ops->deauth)
3815 return -EOPNOTSUPP;
636a5d36 3816
074ac8df 3817 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3818 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3819 return -EOPNOTSUPP;
eec60b03 3820
19957bb3 3821 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3822
19957bb3
JB		 3823 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3824 if (reason_code == 0) {
f4a11bb0 3825 /* Reason Code 0 is reserved */
4c476991 3826 return -EINVAL;
255e737e 3827 }
636a5d36
JM		 3828
3829 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3830 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3831 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3832 }
3833
d5cdfacb
JM		 3834 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3835
4c476991
JB		 3836 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3837 local_state_change);
636a5d36
JM		 3838}
3839
3840static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3841{
4c476991
JB		 3842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3843 struct net_device *dev = info->user_ptr[1];
19957bb3 3844 const u8 *ie = NULL, *bssid;
4c476991 3845 int ie_len = 0;
19957bb3 3846 u16 reason_code;
d5cdfacb 3847 bool local_state_change;
636a5d36 3848
f4a11bb0
JB		 3849 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3850 return -EINVAL;
3851
3852 if (!info->attrs[NL80211_ATTR_MAC])
3853 return -EINVAL;
3854
3855 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3856 return -EINVAL;
3857
4c476991
JB		 3858 if (!rdev->ops->disassoc)
3859 return -EOPNOTSUPP;
636a5d36 3860
074ac8df 3861 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3862 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3863 return -EOPNOTSUPP;
eec60b03 3864
19957bb3 3865 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3866
19957bb3
JB		 3867 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3868 if (reason_code == 0) {
f4a11bb0 3869 /* Reason Code 0 is reserved */
4c476991 3870 return -EINVAL;
255e737e 3871 }
636a5d36
JM		 3872
3873 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3874 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3875 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3876 }
3877
d5cdfacb
JM		 3878 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3879
4c476991
JB		 3880 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3881 local_state_change);
636a5d36
JM		 3882}
3883
dd5b4cc7
FF		 3884static bool
3885nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3886 int mcast_rate[IEEE80211_NUM_BANDS],
3887 int rateval)
3888{
3889 struct wiphy *wiphy = &rdev->wiphy;
3890 bool found = false;
3891 int band, i;
3892
3893 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3894 struct ieee80211_supported_band *sband;
3895
3896 sband = wiphy->bands[band];
3897 if (!sband)
3898 continue;
3899
3900 for (i = 0; i < sband->n_bitrates; i++) {
3901 if (sband->bitrates[i].bitrate == rateval) {
3902 mcast_rate[band] = i + 1;
3903 found = true;
3904 break;
3905 }
3906 }
3907 }
3908
3909 return found;
3910}
3911
04a773ad
JB		 3912static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3913{
4c476991
JB		 3914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3915 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3916 struct cfg80211_ibss_params ibss;
3917 struct wiphy *wiphy;
fffd0934 3918 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3919 int err;
3920
8e30bc55
JB		 3921 memset(&ibss, 0, sizeof(ibss));
3922
04a773ad
JB		 3923 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3924 return -EINVAL;
3925
3926 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3927 !info->attrs[NL80211_ATTR_SSID] ||
3928 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3929 return -EINVAL;
3930
8e30bc55
JB		 3931 ibss.beacon_interval = 100;
3932
3933 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3934 ibss.beacon_interval =
3935 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3936 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3937 return -EINVAL;
3938 }
3939
4c476991
JB		 3940 if (!rdev->ops->join_ibss)
3941 return -EOPNOTSUPP;
04a773ad 3942
4c476991
JB		 3943 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3944 return -EOPNOTSUPP;
04a773ad 3945
79c97e97 3946 wiphy = &rdev->wiphy;
04a773ad
JB		 3947
3948 if (info->attrs[NL80211_ATTR_MAC])
3949 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3950 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3951 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3952
3953 if (info->attrs[NL80211_ATTR_IE]) {
3954 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3955 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3956 }
3957
3958 ibss.channel = ieee80211_get_channel(wiphy,
3959 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3960 if (!ibss.channel ||
3961 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3962 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3963 return -EINVAL;
04a773ad
JB		 3964
3965 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3966 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3967
fbd2c8dc
TP		 3968 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3969 u8 *rates =
3970 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3971 int n_rates =
3972 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3973 struct ieee80211_supported_band *sband =
3974 wiphy->bands[ibss.channel->band];
3975 int i, j;
3976
4c476991
JB		 3977 if (n_rates == 0)
3978 return -EINVAL;
fbd2c8dc
TP		 3979
3980 for (i = 0; i < n_rates; i++) {
3981 int rate = (rates[i] & 0x7f) * 5;
3982 bool found = false;
3983
3984 for (j = 0; j < sband->n_bitrates; j++) {
3985 if (sband->bitrates[j].bitrate == rate) {
3986 found = true;
3987 ibss.basic_rates |= BIT(j);
3988 break;
3989 }
3990 }
4c476991
JB		 3991 if (!found)
3992 return -EINVAL;
fbd2c8dc 3993 }
fbd2c8dc 3994 }
dd5b4cc7
FF		 3995
3996 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3997 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3998 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3999 return -EINVAL;
fbd2c8dc 4000
4c476991
JB		 4001 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4002 connkeys = nl80211_parse_connkeys(rdev,
4003 info->attrs[NL80211_ATTR_KEYS]);
4004 if (IS_ERR(connkeys))
4005 return PTR_ERR(connkeys);
4006 }
04a773ad 4007
4c476991 4008 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4009 if (err)
4010 kfree(connkeys);
04a773ad
JB		 4011 return err;
4012}
4013
4014static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4015{
4c476991
JB		 4016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4017 struct net_device *dev = info->user_ptr[1];
04a773ad 4018
4c476991
JB		 4019 if (!rdev->ops->leave_ibss)
4020 return -EOPNOTSUPP;
04a773ad 4021
4c476991
JB		 4022 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4023 return -EOPNOTSUPP;
04a773ad 4024
4c476991 4025 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4026}
4027
aff89a9b
JB		 4028#ifdef CONFIG_NL80211_TESTMODE
4029static struct genl_multicast_group nl80211_testmode_mcgrp = {
4030 .name = "testmode",
4031};
4032
4033static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4034{
4c476991 4035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4036 int err;
4037
4038 if (!info->attrs[NL80211_ATTR_TESTDATA])
4039 return -EINVAL;
4040
aff89a9b
JB		 4041 err = -EOPNOTSUPP;
4042 if (rdev->ops->testmode_cmd) {
4043 rdev->testmode_info = info;
4044 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4045 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4046 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4047 rdev->testmode_info = NULL;
4048 }
4049
aff89a9b
JB		 4050 return err;
4051}
4052
4053static struct sk_buff *
4054__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4055 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4056{
4057 struct sk_buff *skb;
4058 void *hdr;
4059 struct nlattr *data;
4060
4061 skb = nlmsg_new(approxlen + 100, gfp);
4062 if (!skb)
4063 return NULL;
4064
4065 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4066 if (!hdr) {
4067 kfree_skb(skb);
4068 return NULL;
4069 }
4070
4071 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4072 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4073
4074 ((void **)skb->cb)[0] = rdev;
4075 ((void **)skb->cb)[1] = hdr;
4076 ((void **)skb->cb)[2] = data;
4077
4078 return skb;
4079
4080 nla_put_failure:
4081 kfree_skb(skb);
4082 return NULL;
4083}
4084
4085struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4086 int approxlen)
4087{
4088 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4089
4090 if (WARN_ON(!rdev->testmode_info))
4091 return NULL;
4092
4093 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4094 rdev->testmode_info->snd_pid,
4095 rdev->testmode_info->snd_seq,
4096 GFP_KERNEL);
4097}
4098EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4099
4100int cfg80211_testmode_reply(struct sk_buff *skb)
4101{
4102 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4103 void *hdr = ((void **)skb->cb)[1];
4104 struct nlattr *data = ((void **)skb->cb)[2];
4105
4106 if (WARN_ON(!rdev->testmode_info)) {
4107 kfree_skb(skb);
4108 return -EINVAL;
4109 }
4110
4111 nla_nest_end(skb, data);
4112 genlmsg_end(skb, hdr);
4113 return genlmsg_reply(skb, rdev->testmode_info);
4114}
4115EXPORT_SYMBOL(cfg80211_testmode_reply);
4116
4117struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4118 int approxlen, gfp_t gfp)
4119{
4120 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4121
4122 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4123}
4124EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4125
4126void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4127{
4128 void *hdr = ((void **)skb->cb)[1];
4129 struct nlattr *data = ((void **)skb->cb)[2];
4130
4131 nla_nest_end(skb, data);
4132 genlmsg_end(skb, hdr);
4133 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4134}
4135EXPORT_SYMBOL(cfg80211_testmode_event);
4136#endif
4137
b23aa676
SO		 4138static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4139{
4c476991
JB		 4140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4141 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4142 struct cfg80211_connect_params connect;
4143 struct wiphy *wiphy;
fffd0934 4144 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4145 int err;
4146
4147 memset(&connect, 0, sizeof(connect));
4148
4149 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4150 return -EINVAL;
4151
4152 if (!info->attrs[NL80211_ATTR_SSID] ||
4153 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4154 return -EINVAL;
4155
4156 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4157 connect.auth_type =
4158 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4159 if (!nl80211_valid_auth_type(connect.auth_type))
4160 return -EINVAL;
4161 } else
4162 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4163
4164 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4165
c0692b8f 4166 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4167 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4168 if (err)
4169 return err;
b23aa676 4170
074ac8df 4171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4172 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4173 return -EOPNOTSUPP;
b23aa676 4174
79c97e97 4175 wiphy = &rdev->wiphy;
b23aa676 4176
b23aa676
SO		 4177 if (info->attrs[NL80211_ATTR_MAC])
4178 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4179 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4180 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4181
4182 if (info->attrs[NL80211_ATTR_IE]) {
4183 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4184 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4185 }
4186
4187 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4188 connect.channel =
4189 ieee80211_get_channel(wiphy,
4190 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4191 if (!connect.channel ||
4c476991
JB		 4192 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4193 return -EINVAL;
b23aa676
SO		 4194 }
4195
fffd0934
JB		 4196 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4197 connkeys = nl80211_parse_connkeys(rdev,
4198 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4199 if (IS_ERR(connkeys))
4200 return PTR_ERR(connkeys);
fffd0934
JB		 4201 }
4202
4203 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4204 if (err)
4205 kfree(connkeys);
b23aa676
SO		 4206 return err;
4207}
4208
4209static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4210{
4c476991
JB		 4211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4212 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4213 u16 reason;
4214
4215 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4216 reason = WLAN_REASON_DEAUTH_LEAVING;
4217 else
4218 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4219
4220 if (reason == 0)
4221 return -EINVAL;
4222
074ac8df 4223 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4224 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4225 return -EOPNOTSUPP;
b23aa676 4226
4c476991 4227 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4228}
4229
463d0183
JB		 4230static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4231{
4c476991 4232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4233 struct net *net;
4234 int err;
4235 u32 pid;
4236
4237 if (!info->attrs[NL80211_ATTR_PID])
4238 return -EINVAL;
4239
4240 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4241
463d0183 4242 net = get_net_ns_by_pid(pid);
4c476991
JB		 4243 if (IS_ERR(net))
4244 return PTR_ERR(net);
463d0183
JB		 4245
4246 err = 0;
4247
4248 /* check if anything to do */
4c476991
JB		 4249 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4250 err = cfg80211_switch_netns(rdev, net);
463d0183 4251
463d0183 4252 put_net(net);
463d0183
JB		 4253 return err;
4254}
4255
67fbb16b
SO		 4256static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4257{
4c476991 4258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4259 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4260 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4261 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4262 struct cfg80211_pmksa pmksa;
4263
4264 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4265
4266 if (!info->attrs[NL80211_ATTR_MAC])
4267 return -EINVAL;
4268
4269 if (!info->attrs[NL80211_ATTR_PMKID])
4270 return -EINVAL;
4271
67fbb16b
SO		 4272 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4273 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4274
074ac8df 4275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4277 return -EOPNOTSUPP;
67fbb16b
SO		 4278
4279 switch (info->genlhdr->cmd) {
4280 case NL80211_CMD_SET_PMKSA:
4281 rdev_ops = rdev->ops->set_pmksa;
4282 break;
4283 case NL80211_CMD_DEL_PMKSA:
4284 rdev_ops = rdev->ops->del_pmksa;
4285 break;
4286 default:
4287 WARN_ON(1);
4288 break;
4289 }
4290
4c476991
JB		 4291 if (!rdev_ops)
4292 return -EOPNOTSUPP;
67fbb16b 4293
4c476991 4294 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4295}
4296
4297static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4298{
4c476991
JB		 4299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4300 struct net_device *dev = info->user_ptr[1];
67fbb16b 4301
074ac8df 4302 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4303 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4304 return -EOPNOTSUPP;
67fbb16b 4305
4c476991
JB		 4306 if (!rdev->ops->flush_pmksa)
4307 return -EOPNOTSUPP;
67fbb16b 4308
4c476991 4309 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4310}
4311
9588bbd5
JM		 4312static int nl80211_remain_on_channel(struct sk_buff *skb,
4313 struct genl_info *info)
4314{
4c476991
JB		 4315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4316 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4317 struct ieee80211_channel *chan;
4318 struct sk_buff *msg;
4319 void *hdr;
4320 u64 cookie;
4321 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4322 u32 freq, duration;
4323 int err;
4324
4325 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4326 !info->attrs[NL80211_ATTR_DURATION])
4327 return -EINVAL;
4328
4329 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4330
4331 /*
4332 * We should be on that channel for at least one jiffie,
4333 * and more than 5 seconds seems excessive.
4334 */
a293911d
JB		 4335 if (!duration || !msecs_to_jiffies(duration) ||
4336 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4337 return -EINVAL;
4338
4c476991
JB		 4339 if (!rdev->ops->remain_on_channel)
4340 return -EOPNOTSUPP;
9588bbd5 4341
9588bbd5
JM		 4342 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4343 channel_type = nla_get_u32(
4344 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4345 if (channel_type != NL80211_CHAN_NO_HT &&
4346 channel_type != NL80211_CHAN_HT20 &&
4347 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4348 channel_type != NL80211_CHAN_HT40MINUS)
4349 return -EINVAL;
9588bbd5
JM		 4350 }
4351
4352 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4353 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4354 if (chan == NULL)
4355 return -EINVAL;
9588bbd5
JM		 4356
4357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4358 if (!msg)
4359 return -ENOMEM;
9588bbd5
JM		 4360
4361 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4362 NL80211_CMD_REMAIN_ON_CHANNEL);
4363
4364 if (IS_ERR(hdr)) {
4365 err = PTR_ERR(hdr);
4366 goto free_msg;
4367 }
4368
4369 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4370 channel_type, duration, &cookie);
4371
4372 if (err)
4373 goto free_msg;
4374
4375 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4376
4377 genlmsg_end(msg, hdr);
4c476991
JB		 4378
4379 return genlmsg_reply(msg, info);
9588bbd5
JM		 4380
4381 nla_put_failure:
4382 err = -ENOBUFS;
4383 free_msg:
4384 nlmsg_free(msg);
9588bbd5
JM		 4385 return err;
4386}
4387
4388static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4389 struct genl_info *info)
4390{
4c476991
JB		 4391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4392 struct net_device *dev = info->user_ptr[1];
9588bbd5 4393 u64 cookie;
9588bbd5
JM		 4394
4395 if (!info->attrs[NL80211_ATTR_COOKIE])
4396 return -EINVAL;
4397
4c476991
JB		 4398 if (!rdev->ops->cancel_remain_on_channel)
4399 return -EOPNOTSUPP;
9588bbd5 4400
9588bbd5
JM		 4401 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4402
4c476991 4403 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4404}
4405
13ae75b1
JM		 4406static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4407 u8 *rates, u8 rates_len)
4408{
4409 u8 i;
4410 u32 mask = 0;
4411
4412 for (i = 0; i < rates_len; i++) {
4413 int rate = (rates[i] & 0x7f) * 5;
4414 int ridx;
4415 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4416 struct ieee80211_rate *srate =
4417 &sband->bitrates[ridx];
4418 if (rate == srate->bitrate) {
4419 mask |= 1 << ridx;
4420 break;
4421 }
4422 }
4423 if (ridx == sband->n_bitrates)
4424 return 0; /* rate not found */
4425 }
4426
4427 return mask;
4428}
4429
b54452b0 4430static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4431 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4432 .len = NL80211_MAX_SUPP_RATES },
4433};
4434
4435static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4436 struct genl_info *info)
4437{
4438 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4440 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4441 int rem, i;
4442 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4443 struct nlattr *tx_rates;
4444 struct ieee80211_supported_band *sband;
4445
4446 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4447 return -EINVAL;
4448
4c476991
JB		 4449 if (!rdev->ops->set_bitrate_mask)
4450 return -EOPNOTSUPP;
13ae75b1
JM		 4451
4452 memset(&mask, 0, sizeof(mask));
4453 /* Default to all rates enabled */
4454 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4455 sband = rdev->wiphy.bands[i];
4456 mask.control[i].legacy =
4457 sband ? (1 << sband->n_bitrates) - 1 : 0;
4458 }
4459
4460 /*
4461 * The nested attribute uses enum nl80211_band as the index. This maps
4462 * directly to the enum ieee80211_band values used in cfg80211.
4463 */
4464 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4465 {
4466 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4467 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4468 return -EINVAL;
13ae75b1 4469 sband = rdev->wiphy.bands[band];
4c476991
JB		 4470 if (sband == NULL)
4471 return -EINVAL;
13ae75b1
JM		 4472 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4473 nla_len(tx_rates), nl80211_txattr_policy);
4474 if (tb[NL80211_TXRATE_LEGACY]) {
4475 mask.control[band].legacy = rateset_to_mask(
4476 sband,
4477 nla_data(tb[NL80211_TXRATE_LEGACY]),
4478 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4479 if (mask.control[band].legacy == 0)
4480 return -EINVAL;
13ae75b1
JM		 4481 }
4482 }
4483
4c476991 4484 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4485}
4486
2e161f78 4487static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4488{
4c476991
JB		 4489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4490 struct net_device *dev = info->user_ptr[1];
2e161f78 4491 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4492
4493 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4494 return -EINVAL;
4495
2e161f78
JB		 4496 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4497 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4498
9d38d85d 4499 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4500 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4501 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4502 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4503 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4504 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4505 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4506 return -EOPNOTSUPP;
026331c4
JM		 4507
4508 /* not much point in registering if we can't reply */
4c476991
JB		 4509 if (!rdev->ops->mgmt_tx)
4510 return -EOPNOTSUPP;
026331c4 4511
4c476991 4512 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4513 frame_type,
026331c4
JM		 4514 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4515 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4516}
4517
2e161f78 4518static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4519{
4c476991
JB		 4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4522 struct ieee80211_channel *chan;
4523 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4524 bool channel_type_valid = false;
026331c4
JM		 4525 u32 freq;
4526 int err;
4527 void *hdr;
4528 u64 cookie;
4529 struct sk_buff *msg;
f7ca38df
JB		 4530 unsigned int wait = 0;
4531 bool offchan;
026331c4
JM		 4532
4533 if (!info->attrs[NL80211_ATTR_FRAME] ||
4534 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4535 return -EINVAL;
4536
4c476991
JB		 4537 if (!rdev->ops->mgmt_tx)
4538 return -EOPNOTSUPP;
026331c4 4539
9d38d85d 4540 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4541 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4543 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4544 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4545 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4546 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4547 return -EOPNOTSUPP;
026331c4 4548
f7ca38df
JB		 4549 if (info->attrs[NL80211_ATTR_DURATION]) {
4550 if (!rdev->ops->mgmt_tx_cancel_wait)
4551 return -EINVAL;
4552 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4553 }
4554
026331c4
JM		 4555 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4556 channel_type = nla_get_u32(
4557 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4558 if (channel_type != NL80211_CHAN_NO_HT &&
4559 channel_type != NL80211_CHAN_HT20 &&
4560 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4561 channel_type != NL80211_CHAN_HT40MINUS)
4562 return -EINVAL;
252aa631 4563 channel_type_valid = true;
026331c4
JM		 4564 }
4565
f7ca38df
JB		 4566 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4567
026331c4
JM		 4568 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4569 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4570 if (chan == NULL)
4571 return -EINVAL;
026331c4
JM		 4572
4573 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4574 if (!msg)
4575 return -ENOMEM;
026331c4
JM		 4576
4577 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4578 NL80211_CMD_FRAME);
026331c4
JM		 4579
4580 if (IS_ERR(hdr)) {
4581 err = PTR_ERR(hdr);
4582 goto free_msg;
4583 }
f7ca38df
JB		 4584 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4585 channel_type_valid, wait,
2e161f78
JB		 4586 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4587 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4588 &cookie);
026331c4
JM		 4589 if (err)
4590 goto free_msg;
4591
4592 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4593
4594 genlmsg_end(msg, hdr);
4c476991 4595 return genlmsg_reply(msg, info);
026331c4
JM		 4596
4597 nla_put_failure:
4598 err = -ENOBUFS;
4599 free_msg:
4600 nlmsg_free(msg);
026331c4
JM		 4601 return err;
4602}
4603
f7ca38df
JB		 4604static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4605{
4606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4607 struct net_device *dev = info->user_ptr[1];
4608 u64 cookie;
4609
4610 if (!info->attrs[NL80211_ATTR_COOKIE])
4611 return -EINVAL;
4612
4613 if (!rdev->ops->mgmt_tx_cancel_wait)
4614 return -EOPNOTSUPP;
4615
4616 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4618 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4619 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4620 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4622 return -EOPNOTSUPP;
4623
4624 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4625
4626 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4627}
4628
ffb9eb3d
KV		 4629static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4630{
4c476991 4631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4632 struct wireless_dev *wdev;
4c476991 4633 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4634 u8 ps_state;
4635 bool state;
4636 int err;
4637
4c476991
JB		 4638 if (!info->attrs[NL80211_ATTR_PS_STATE])
4639 return -EINVAL;
ffb9eb3d
KV		 4640
4641 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4642
4c476991
JB		 4643 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4644 return -EINVAL;
ffb9eb3d
KV		 4645
4646 wdev = dev->ieee80211_ptr;
4647
4c476991
JB		 4648 if (!rdev->ops->set_power_mgmt)
4649 return -EOPNOTSUPP;
ffb9eb3d
KV		 4650
4651 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4652
4653 if (state == wdev->ps)
4c476991 4654 return 0;
ffb9eb3d 4655
4c476991
JB		 4656 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4657 wdev->ps_timeout);
4658 if (!err)
4659 wdev->ps = state;
ffb9eb3d
KV		 4660 return err;
4661}
4662
4663static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4664{
4c476991 4665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4666 enum nl80211_ps_state ps_state;
4667 struct wireless_dev *wdev;
4c476991 4668 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4669 struct sk_buff *msg;
4670 void *hdr;
4671 int err;
4672
ffb9eb3d
KV		 4673 wdev = dev->ieee80211_ptr;
4674
4c476991
JB		 4675 if (!rdev->ops->set_power_mgmt)
4676 return -EOPNOTSUPP;
ffb9eb3d
KV		 4677
4678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4679 if (!msg)
4680 return -ENOMEM;
ffb9eb3d
KV		 4681
4682 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4683 NL80211_CMD_GET_POWER_SAVE);
4684 if (!hdr) {
4c476991 4685 err = -ENOBUFS;
ffb9eb3d
KV		 4686 goto free_msg;
4687 }
4688
4689 if (wdev->ps)
4690 ps_state = NL80211_PS_ENABLED;
4691 else
4692 ps_state = NL80211_PS_DISABLED;
4693
4694 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4695
4696 genlmsg_end(msg, hdr);
4c476991 4697 return genlmsg_reply(msg, info);
ffb9eb3d 4698
4c476991 4699 nla_put_failure:
ffb9eb3d 4700 err = -ENOBUFS;
4c476991 4701 free_msg:
ffb9eb3d 4702 nlmsg_free(msg);
ffb9eb3d
KV		 4703 return err;
4704}
4705
d6dc1a38
JO		 4706static struct nla_policy
4707nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4708 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4709 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4710 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4711};
4712
4713static int nl80211_set_cqm_rssi(struct genl_info *info,
4714 s32 threshold, u32 hysteresis)
4715{
4c476991 4716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4717 struct wireless_dev *wdev;
4c476991 4718 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4719
4720 if (threshold > 0)
4721 return -EINVAL;
4722
d6dc1a38
JO		 4723 wdev = dev->ieee80211_ptr;
4724
4c476991
JB		 4725 if (!rdev->ops->set_cqm_rssi_config)
4726 return -EOPNOTSUPP;
d6dc1a38 4727
074ac8df 4728 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4729 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4730 return -EOPNOTSUPP;
d6dc1a38 4731
4c476991
JB		 4732 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4733 threshold, hysteresis);
d6dc1a38
JO		 4734}
4735
4736static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4737{
4738 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4739 struct nlattr *cqm;
4740 int err;
4741
4742 cqm = info->attrs[NL80211_ATTR_CQM];
4743 if (!cqm) {
4744 err = -EINVAL;
4745 goto out;
4746 }
4747
4748 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4749 nl80211_attr_cqm_policy);
4750 if (err)
4751 goto out;
4752
4753 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4754 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4755 s32 threshold;
4756 u32 hysteresis;
4757 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4758 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4759 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4760 } else
4761 err = -EINVAL;
4762
4763out:
4764 return err;
4765}
4766
29cbe68c
JB		 4767static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
4768{
4769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4770 struct net_device *dev = info->user_ptr[1];
4771 struct mesh_config cfg;
c80d545d 4772 struct mesh_setup setup;
29cbe68c
JB		 4773 int err;
4774
4775 /* start with default */
4776 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 4777 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 4778
24bdd9f4 4779 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 4780 /* and parse parameters if given */
24bdd9f4 4781 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 4782 if (err)
4783 return err;
4784 }
4785
4786 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
4787 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
4788 return -EINVAL;
4789
c80d545d
JC		 4790 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
4791 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
4792
4793 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
4794 /* parse additional setup parameters if given */
4795 err = nl80211_parse_mesh_setup(info, &setup);
4796 if (err)
4797 return err;
4798 }
4799
4800 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 4801}
4802
4803static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
4804{
4805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4806 struct net_device *dev = info->user_ptr[1];
4807
4808 return cfg80211_leave_mesh(rdev, dev);
4809}
4810
4c476991
JB		 4811#define NL80211_FLAG_NEED_WIPHY 0x01
4812#define NL80211_FLAG_NEED_NETDEV 0x02
4813#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4814#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4815#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4816 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4817
4818static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4819 struct genl_info *info)
4820{
4821 struct cfg80211_registered_device *rdev;
4822 struct net_device *dev;
4823 int err;
4824 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4825
4826 if (rtnl)
4827 rtnl_lock();
4828
4829 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4830 rdev = cfg80211_get_dev_from_info(info);
4831 if (IS_ERR(rdev)) {
4832 if (rtnl)
4833 rtnl_unlock();
4834 return PTR_ERR(rdev);
4835 }
4836 info->user_ptr[0] = rdev;
4837 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4838 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4839 if (err) {
4840 if (rtnl)
4841 rtnl_unlock();
4842 return err;
4843 }
41265714
JB		 4844 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4845 !netif_running(dev)) {
d537f5fd
JB		 4846 cfg80211_unlock_rdev(rdev);
4847 dev_put(dev);
41265714
JB		 4848 if (rtnl)
4849 rtnl_unlock();
4850 return -ENETDOWN;
4851 }
4c476991
JB		 4852 info->user_ptr[0] = rdev;
4853 info->user_ptr[1] = dev;
4854 }
4855
4856 return 0;
4857}
4858
4859static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4860 struct genl_info *info)
4861{
4862 if (info->user_ptr[0])
4863 cfg80211_unlock_rdev(info->user_ptr[0]);
4864 if (info->user_ptr[1])
4865 dev_put(info->user_ptr[1]);
4866 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4867 rtnl_unlock();
4868}
4869
55682965
JB		 4870static struct genl_ops nl80211_ops[] = {
4871 {
4872 .cmd = NL80211_CMD_GET_WIPHY,
4873 .doit = nl80211_get_wiphy,
4874 .dumpit = nl80211_dump_wiphy,
4875 .policy = nl80211_policy,
4876 /* can be retrieved by unprivileged users */
4c476991 4877 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4878 },
4879 {
4880 .cmd = NL80211_CMD_SET_WIPHY,
4881 .doit = nl80211_set_wiphy,
4882 .policy = nl80211_policy,
4883 .flags = GENL_ADMIN_PERM,
4c476991 4884 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4885 },
4886 {
4887 .cmd = NL80211_CMD_GET_INTERFACE,
4888 .doit = nl80211_get_interface,
4889 .dumpit = nl80211_dump_interface,
4890 .policy = nl80211_policy,
4891 /* can be retrieved by unprivileged users */
4c476991 4892 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4893 },
4894 {
4895 .cmd = NL80211_CMD_SET_INTERFACE,
4896 .doit = nl80211_set_interface,
4897 .policy = nl80211_policy,
4898 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4900 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4901 },
4902 {
4903 .cmd = NL80211_CMD_NEW_INTERFACE,
4904 .doit = nl80211_new_interface,
4905 .policy = nl80211_policy,
4906 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4907 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4908 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4909 },
4910 {
4911 .cmd = NL80211_CMD_DEL_INTERFACE,
4912 .doit = nl80211_del_interface,
4913 .policy = nl80211_policy,
41ade00f 4914 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4915 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4916 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4917 },
4918 {
4919 .cmd = NL80211_CMD_GET_KEY,
4920 .doit = nl80211_get_key,
4921 .policy = nl80211_policy,
4922 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4924 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4925 },
4926 {
4927 .cmd = NL80211_CMD_SET_KEY,
4928 .doit = nl80211_set_key,
4929 .policy = nl80211_policy,
4930 .flags = GENL_ADMIN_PERM,
41265714 4931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4932 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4933 },
4934 {
4935 .cmd = NL80211_CMD_NEW_KEY,
4936 .doit = nl80211_new_key,
4937 .policy = nl80211_policy,
4938 .flags = GENL_ADMIN_PERM,
41265714 4939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4940 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4941 },
4942 {
4943 .cmd = NL80211_CMD_DEL_KEY,
4944 .doit = nl80211_del_key,
4945 .policy = nl80211_policy,
55682965 4946 .flags = GENL_ADMIN_PERM,
41265714 4947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4948 NL80211_FLAG_NEED_RTNL,
55682965 4949 },
ed1b6cc7
JB		 4950 {
4951 .cmd = NL80211_CMD_SET_BEACON,
4952 .policy = nl80211_policy,
4953 .flags = GENL_ADMIN_PERM,
4954 .doit = nl80211_addset_beacon,
4c476991
JB		 4955 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4956 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4957 },
4958 {
4959 .cmd = NL80211_CMD_NEW_BEACON,
4960 .policy = nl80211_policy,
4961 .flags = GENL_ADMIN_PERM,
4962 .doit = nl80211_addset_beacon,
4c476991
JB		 4963 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4964 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4965 },
4966 {
4967 .cmd = NL80211_CMD_DEL_BEACON,
4968 .policy = nl80211_policy,
4969 .flags = GENL_ADMIN_PERM,
4970 .doit = nl80211_del_beacon,
4c476991
JB		 4971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4972 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4973 },
5727ef1b
JB		 4974 {
4975 .cmd = NL80211_CMD_GET_STATION,
4976 .doit = nl80211_get_station,
2ec600d6 4977 .dumpit = nl80211_dump_station,
5727ef1b 4978 .policy = nl80211_policy,
4c476991
JB		 4979 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4980 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4981 },
4982 {
4983 .cmd = NL80211_CMD_SET_STATION,
4984 .doit = nl80211_set_station,
4985 .policy = nl80211_policy,
4986 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4987 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4988 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4989 },
4990 {
4991 .cmd = NL80211_CMD_NEW_STATION,
4992 .doit = nl80211_new_station,
4993 .policy = nl80211_policy,
4994 .flags = GENL_ADMIN_PERM,
41265714 4995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4996 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4997 },
4998 {
4999 .cmd = NL80211_CMD_DEL_STATION,
5000 .doit = nl80211_del_station,
5001 .policy = nl80211_policy,
2ec600d6 5002 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5003 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5004 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5005 },
5006 {
5007 .cmd = NL80211_CMD_GET_MPATH,
5008 .doit = nl80211_get_mpath,
5009 .dumpit = nl80211_dump_mpath,
5010 .policy = nl80211_policy,
5011 .flags = GENL_ADMIN_PERM,
41265714 5012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5013 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5014 },
5015 {
5016 .cmd = NL80211_CMD_SET_MPATH,
5017 .doit = nl80211_set_mpath,
5018 .policy = nl80211_policy,
5019 .flags = GENL_ADMIN_PERM,
41265714 5020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5021 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5022 },
5023 {
5024 .cmd = NL80211_CMD_NEW_MPATH,
5025 .doit = nl80211_new_mpath,
5026 .policy = nl80211_policy,
5027 .flags = GENL_ADMIN_PERM,
41265714 5028 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5029 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5030 },
5031 {
5032 .cmd = NL80211_CMD_DEL_MPATH,
5033 .doit = nl80211_del_mpath,
5034 .policy = nl80211_policy,
9f1ba906 5035 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5036 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5037 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5038 },
5039 {
5040 .cmd = NL80211_CMD_SET_BSS,
5041 .doit = nl80211_set_bss,
5042 .policy = nl80211_policy,
b2e1b302 5043 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5044 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5045 NL80211_FLAG_NEED_RTNL,
b2e1b302 5046 },
f130347c
LR		 5047 {
5048 .cmd = NL80211_CMD_GET_REG,
5049 .doit = nl80211_get_reg,
5050 .policy = nl80211_policy,
5051 /* can be retrieved by unprivileged users */
5052 },
b2e1b302
LR		 5053 {
5054 .cmd = NL80211_CMD_SET_REG,
5055 .doit = nl80211_set_reg,
5056 .policy = nl80211_policy,
5057 .flags = GENL_ADMIN_PERM,
5058 },
5059 {
5060 .cmd = NL80211_CMD_REQ_SET_REG,
5061 .doit = nl80211_req_set_reg,
5062 .policy = nl80211_policy,
93da9cc1 5063 .flags = GENL_ADMIN_PERM,
5064 },
5065 {
24bdd9f4
JC		 5066 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5067 .doit = nl80211_get_mesh_config,
93da9cc1 5068 .policy = nl80211_policy,
5069 /* can be retrieved by unprivileged users */
4c476991
JB		 5070 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5071 NL80211_FLAG_NEED_RTNL,
93da9cc1 5072 },
5073 {
24bdd9f4
JC		 5074 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5075 .doit = nl80211_update_mesh_config,
93da9cc1 5076 .policy = nl80211_policy,
9aed3cc1 5077 .flags = GENL_ADMIN_PERM,
29cbe68c 5078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5079 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5080 },
2a519311
JB		 5081 {
5082 .cmd = NL80211_CMD_TRIGGER_SCAN,
5083 .doit = nl80211_trigger_scan,
5084 .policy = nl80211_policy,
5085 .flags = GENL_ADMIN_PERM,
41265714 5086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5087 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5088 },
5089 {
5090 .cmd = NL80211_CMD_GET_SCAN,
5091 .policy = nl80211_policy,
5092 .dumpit = nl80211_dump_scan,
5093 },
636a5d36
JM		 5094 {
5095 .cmd = NL80211_CMD_AUTHENTICATE,
5096 .doit = nl80211_authenticate,
5097 .policy = nl80211_policy,
5098 .flags = GENL_ADMIN_PERM,
41265714 5099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5100 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5101 },
5102 {
5103 .cmd = NL80211_CMD_ASSOCIATE,
5104 .doit = nl80211_associate,
5105 .policy = nl80211_policy,
5106 .flags = GENL_ADMIN_PERM,
41265714 5107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5108 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5109 },
5110 {
5111 .cmd = NL80211_CMD_DEAUTHENTICATE,
5112 .doit = nl80211_deauthenticate,
5113 .policy = nl80211_policy,
5114 .flags = GENL_ADMIN_PERM,
41265714 5115 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5116 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5117 },
5118 {
5119 .cmd = NL80211_CMD_DISASSOCIATE,
5120 .doit = nl80211_disassociate,
5121 .policy = nl80211_policy,
5122 .flags = GENL_ADMIN_PERM,
41265714 5123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5124 NL80211_FLAG_NEED_RTNL,
636a5d36 5125 },
04a773ad
JB		 5126 {
5127 .cmd = NL80211_CMD_JOIN_IBSS,
5128 .doit = nl80211_join_ibss,
5129 .policy = nl80211_policy,
5130 .flags = GENL_ADMIN_PERM,
41265714 5131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5132 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5133 },
5134 {
5135 .cmd = NL80211_CMD_LEAVE_IBSS,
5136 .doit = nl80211_leave_ibss,
5137 .policy = nl80211_policy,
5138 .flags = GENL_ADMIN_PERM,
41265714 5139 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5140 NL80211_FLAG_NEED_RTNL,
04a773ad 5141 },
aff89a9b
JB		 5142#ifdef CONFIG_NL80211_TESTMODE
5143 {
5144 .cmd = NL80211_CMD_TESTMODE,
5145 .doit = nl80211_testmode_do,
5146 .policy = nl80211_policy,
5147 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5148 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5149 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5150 },
5151#endif
b23aa676
SO		 5152 {
5153 .cmd = NL80211_CMD_CONNECT,
5154 .doit = nl80211_connect,
5155 .policy = nl80211_policy,
5156 .flags = GENL_ADMIN_PERM,
41265714 5157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5158 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5159 },
5160 {
5161 .cmd = NL80211_CMD_DISCONNECT,
5162 .doit = nl80211_disconnect,
5163 .policy = nl80211_policy,
5164 .flags = GENL_ADMIN_PERM,
41265714 5165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5166 NL80211_FLAG_NEED_RTNL,
b23aa676 5167 },
463d0183
JB		 5168 {
5169 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5170 .doit = nl80211_wiphy_netns,
5171 .policy = nl80211_policy,
5172 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5173 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5174 NL80211_FLAG_NEED_RTNL,
463d0183 5175 },
61fa713c
HS		 5176 {
5177 .cmd = NL80211_CMD_GET_SURVEY,
5178 .policy = nl80211_policy,
5179 .dumpit = nl80211_dump_survey,
5180 },
67fbb16b
SO		 5181 {
5182 .cmd = NL80211_CMD_SET_PMKSA,
5183 .doit = nl80211_setdel_pmksa,
5184 .policy = nl80211_policy,
5185 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5187 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5188 },
5189 {
5190 .cmd = NL80211_CMD_DEL_PMKSA,
5191 .doit = nl80211_setdel_pmksa,
5192 .policy = nl80211_policy,
5193 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5195 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5196 },
5197 {
5198 .cmd = NL80211_CMD_FLUSH_PMKSA,
5199 .doit = nl80211_flush_pmksa,
5200 .policy = nl80211_policy,
5201 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5203 NL80211_FLAG_NEED_RTNL,
67fbb16b 5204 },
9588bbd5
JM		 5205 {
5206 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5207 .doit = nl80211_remain_on_channel,
5208 .policy = nl80211_policy,
5209 .flags = GENL_ADMIN_PERM,
41265714 5210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5211 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5212 },
5213 {
5214 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5215 .doit = nl80211_cancel_remain_on_channel,
5216 .policy = nl80211_policy,
5217 .flags = GENL_ADMIN_PERM,
41265714 5218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5219 NL80211_FLAG_NEED_RTNL,
9588bbd5 5220 },
13ae75b1
JM		 5221 {
5222 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5223 .doit = nl80211_set_tx_bitrate_mask,
5224 .policy = nl80211_policy,
5225 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5227 NL80211_FLAG_NEED_RTNL,
13ae75b1 5228 },
026331c4 5229 {
2e161f78
JB		 5230 .cmd = NL80211_CMD_REGISTER_FRAME,
5231 .doit = nl80211_register_mgmt,
026331c4
JM		 5232 .policy = nl80211_policy,
5233 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5234 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5235 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5236 },
5237 {
2e161f78
JB		 5238 .cmd = NL80211_CMD_FRAME,
5239 .doit = nl80211_tx_mgmt,
026331c4 5240 .policy = nl80211_policy,
f7ca38df
JB		 5241 .flags = GENL_ADMIN_PERM,
5242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5243 NL80211_FLAG_NEED_RTNL,
5244 },
5245 {
5246 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5247 .doit = nl80211_tx_mgmt_cancel_wait,
5248 .policy = nl80211_policy,
026331c4 5249 .flags = GENL_ADMIN_PERM,
41265714 5250 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5251 NL80211_FLAG_NEED_RTNL,
026331c4 5252 },
ffb9eb3d
KV		 5253 {
5254 .cmd = NL80211_CMD_SET_POWER_SAVE,
5255 .doit = nl80211_set_power_save,
5256 .policy = nl80211_policy,
5257 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5258 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5259 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5260 },
5261 {
5262 .cmd = NL80211_CMD_GET_POWER_SAVE,
5263 .doit = nl80211_get_power_save,
5264 .policy = nl80211_policy,
5265 /* can be retrieved by unprivileged users */
4c476991
JB		 5266 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5267 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5268 },
d6dc1a38
JO		 5269 {
5270 .cmd = NL80211_CMD_SET_CQM,
5271 .doit = nl80211_set_cqm,
5272 .policy = nl80211_policy,
5273 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5275 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5276 },
f444de05
JB		 5277 {
5278 .cmd = NL80211_CMD_SET_CHANNEL,
5279 .doit = nl80211_set_channel,
5280 .policy = nl80211_policy,
5281 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5282 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5283 NL80211_FLAG_NEED_RTNL,
f444de05 5284 },
e8347eba
BJ		 5285 {
5286 .cmd = NL80211_CMD_SET_WDS_PEER,
5287 .doit = nl80211_set_wds_peer,
5288 .policy = nl80211_policy,
5289 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5290 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5291 NL80211_FLAG_NEED_RTNL,
e8347eba 5292 },
29cbe68c
JB		 5293 {
5294 .cmd = NL80211_CMD_JOIN_MESH,
5295 .doit = nl80211_join_mesh,
5296 .policy = nl80211_policy,
5297 .flags = GENL_ADMIN_PERM,
5298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5299 NL80211_FLAG_NEED_RTNL,
5300 },
5301 {
5302 .cmd = NL80211_CMD_LEAVE_MESH,
5303 .doit = nl80211_leave_mesh,
5304 .policy = nl80211_policy,
5305 .flags = GENL_ADMIN_PERM,
5306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5307 NL80211_FLAG_NEED_RTNL,
5308 },
55682965 5309};
9588bbd5 5310
6039f6d2
JM		 5311static struct genl_multicast_group nl80211_mlme_mcgrp = {
5312 .name = "mlme",
5313};
55682965
JB		 5314
5315/* multicast groups */
5316static struct genl_multicast_group nl80211_config_mcgrp = {
5317 .name = "config",
5318};
2a519311
JB		 5319static struct genl_multicast_group nl80211_scan_mcgrp = {
5320 .name = "scan",
5321};
73d54c9e
LR		 5322static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5323 .name = "regulatory",
5324};
55682965
JB		 5325
5326/* notification functions */
5327
5328void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5329{
5330 struct sk_buff *msg;
5331
fd2120ca 5332 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5333 if (!msg)
5334 return;
5335
5336 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5337 nlmsg_free(msg);
5338 return;
5339 }
5340
463d0183
JB		 5341 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5342 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5343}
5344
362a415d
JB		 5345static int nl80211_add_scan_req(struct sk_buff *msg,
5346 struct cfg80211_registered_device *rdev)
5347{
5348 struct cfg80211_scan_request *req = rdev->scan_req;
5349 struct nlattr *nest;
5350 int i;
5351
667503dd
JB		 5352 ASSERT_RDEV_LOCK(rdev);
5353
362a415d
JB		 5354 if (WARN_ON(!req))
5355 return 0;
5356
5357 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5358 if (!nest)
5359 goto nla_put_failure;
5360 for (i = 0; i < req->n_ssids; i++)
5361 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5362 nla_nest_end(msg, nest);
5363
5364 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5365 if (!nest)
5366 goto nla_put_failure;
5367 for (i = 0; i < req->n_channels; i++)
5368 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5369 nla_nest_end(msg, nest);
5370
5371 if (req->ie)
5372 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5373
5374 return 0;
5375 nla_put_failure:
5376 return -ENOBUFS;
5377}
5378
a538e2d5
JB		 5379static int nl80211_send_scan_msg(struct sk_buff *msg,
5380 struct cfg80211_registered_device *rdev,
5381 struct net_device *netdev,
5382 u32 pid, u32 seq, int flags,
5383 u32 cmd)
2a519311
JB		 5384{
5385 void *hdr;
5386
5387 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5388 if (!hdr)
5389 return -1;
5390
b5850a7a 5391 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5392 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5393
362a415d
JB		 5394 /* ignore errors and send incomplete event anyway */
5395 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5396
5397 return genlmsg_end(msg, hdr);
5398
5399 nla_put_failure:
5400 genlmsg_cancel(msg, hdr);
5401 return -EMSGSIZE;
5402}
5403
a538e2d5
JB		 5404void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5405 struct net_device *netdev)
5406{
5407 struct sk_buff *msg;
5408
5409 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5410 if (!msg)
5411 return;
5412
5413 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5414 NL80211_CMD_TRIGGER_SCAN) < 0) {
5415 nlmsg_free(msg);
5416 return;
5417 }
5418
463d0183
JB		 5419 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5420 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5421}
5422
2a519311
JB		 5423void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5424 struct net_device *netdev)
5425{
5426 struct sk_buff *msg;
5427
fd2120ca 5428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5429 if (!msg)
5430 return;
5431
a538e2d5
JB		 5432 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5433 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5434 nlmsg_free(msg);
5435 return;
5436 }
5437
463d0183
JB		 5438 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5439 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5440}
5441
5442void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5443 struct net_device *netdev)
5444{
5445 struct sk_buff *msg;
5446
fd2120ca 5447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5448 if (!msg)
5449 return;
5450
a538e2d5
JB		 5451 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5452 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5453 nlmsg_free(msg);
5454 return;
5455 }
5456
463d0183
JB		 5457 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5458 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5459}
5460
73d54c9e
LR		 5461/*
5462 * This can happen on global regulatory changes or device specific settings
5463 * based on custom world regulatory domains.
5464 */
5465void nl80211_send_reg_change_event(struct regulatory_request *request)
5466{
5467 struct sk_buff *msg;
5468 void *hdr;
5469
fd2120ca 5470 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5471 if (!msg)
5472 return;
5473
5474 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5475 if (!hdr) {
5476 nlmsg_free(msg);
5477 return;
5478 }
5479
5480 /* Userspace can always count this one always being set */
5481 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5482
5483 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5484 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5485 NL80211_REGDOM_TYPE_WORLD);
5486 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5487 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5488 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5489 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5490 request->intersect)
5491 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5492 NL80211_REGDOM_TYPE_INTERSECTION);
5493 else {
5494 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5495 NL80211_REGDOM_TYPE_COUNTRY);
5496 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5497 }
5498
5499 if (wiphy_idx_valid(request->wiphy_idx))
5500 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5501
5502 if (genlmsg_end(msg, hdr) < 0) {
5503 nlmsg_free(msg);
5504 return;
5505 }
5506
bc43b28c 5507 rcu_read_lock();
463d0183 5508 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5509 GFP_ATOMIC);
5510 rcu_read_unlock();
73d54c9e
LR		 5511
5512 return;
5513
5514nla_put_failure:
5515 genlmsg_cancel(msg, hdr);
5516 nlmsg_free(msg);
5517}
5518
6039f6d2
JM		 5519static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5520 struct net_device *netdev,
5521 const u8 *buf, size_t len,
e6d6e342 5522 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5523{
5524 struct sk_buff *msg;
5525 void *hdr;
5526
e6d6e342 5527 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5528 if (!msg)
5529 return;
5530
5531 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5532 if (!hdr) {
5533 nlmsg_free(msg);
5534 return;
5535 }
5536
5537 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5538 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5539 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5540
5541 if (genlmsg_end(msg, hdr) < 0) {
5542 nlmsg_free(msg);
5543 return;
5544 }
5545
463d0183
JB		 5546 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5547 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5548 return;
5549
5550 nla_put_failure:
5551 genlmsg_cancel(msg, hdr);
5552 nlmsg_free(msg);
5553}
5554
5555void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5556 struct net_device *netdev, const u8 *buf,
5557 size_t len, gfp_t gfp)
6039f6d2
JM		 5558{
5559 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5560 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5561}
5562
5563void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5564 struct net_device *netdev, const u8 *buf,
e6d6e342 5565 size_t len, gfp_t gfp)
6039f6d2 5566{
e6d6e342
JB		 5567 nl80211_send_mlme_event(rdev, netdev, buf, len,
5568 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5569}
5570
53b46b84 5571void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5572 struct net_device *netdev, const u8 *buf,
5573 size_t len, gfp_t gfp)
6039f6d2
JM		 5574{
5575 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5576 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5577}
5578
53b46b84
JM		 5579void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5580 struct net_device *netdev, const u8 *buf,
e6d6e342 5581 size_t len, gfp_t gfp)
6039f6d2
JM		 5582{
5583 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5584 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5585}
5586
cf4e594e
JM		 5587void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
5588 struct net_device *netdev, const u8 *buf,
5589 size_t len, gfp_t gfp)
5590{
5591 nl80211_send_mlme_event(rdev, netdev, buf, len,
5592 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
5593}
5594
5595void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
5596 struct net_device *netdev, const u8 *buf,
5597 size_t len, gfp_t gfp)
5598{
5599 nl80211_send_mlme_event(rdev, netdev, buf, len,
5600 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
5601}
5602
1b06bb40
LR		 5603static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5604 struct net_device *netdev, int cmd,
e6d6e342 5605 const u8 *addr, gfp_t gfp)
1965c853
JM		 5606{
5607 struct sk_buff *msg;
5608 void *hdr;
5609
e6d6e342 5610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5611 if (!msg)
5612 return;
5613
5614 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5615 if (!hdr) {
5616 nlmsg_free(msg);
5617 return;
5618 }
5619
5620 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5621 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5622 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5623 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5624
5625 if (genlmsg_end(msg, hdr) < 0) {
5626 nlmsg_free(msg);
5627 return;
5628 }
5629
463d0183
JB		 5630 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5631 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5632 return;
5633
5634 nla_put_failure:
5635 genlmsg_cancel(msg, hdr);
5636 nlmsg_free(msg);
5637}
5638
5639void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5640 struct net_device *netdev, const u8 *addr,
5641 gfp_t gfp)
1965c853
JM		 5642{
5643 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5644 addr, gfp);
1965c853
JM		 5645}
5646
5647void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5648 struct net_device *netdev, const u8 *addr,
5649 gfp_t gfp)
1965c853 5650{
e6d6e342
JB		 5651 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5652 addr, gfp);
1965c853
JM		 5653}
5654
b23aa676
SO		 5655void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5656 struct net_device *netdev, const u8 *bssid,
5657 const u8 *req_ie, size_t req_ie_len,
5658 const u8 *resp_ie, size_t resp_ie_len,
5659 u16 status, gfp_t gfp)
5660{
5661 struct sk_buff *msg;
5662 void *hdr;
5663
5664 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5665 if (!msg)
5666 return;
5667
5668 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5669 if (!hdr) {
5670 nlmsg_free(msg);
5671 return;
5672 }
5673
5674 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5676 if (bssid)
5677 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5678 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5679 if (req_ie)
5680 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5681 if (resp_ie)
5682 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5683
5684 if (genlmsg_end(msg, hdr) < 0) {
5685 nlmsg_free(msg);
5686 return;
5687 }
5688
463d0183
JB		 5689 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5690 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5691 return;
5692
5693 nla_put_failure:
5694 genlmsg_cancel(msg, hdr);
5695 nlmsg_free(msg);
5696
5697}
5698
5699void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5700 struct net_device *netdev, const u8 *bssid,
5701 const u8 *req_ie, size_t req_ie_len,
5702 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5703{
5704 struct sk_buff *msg;
5705 void *hdr;
5706
5707 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5708 if (!msg)
5709 return;
5710
5711 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5712 if (!hdr) {
5713 nlmsg_free(msg);
5714 return;
5715 }
5716
5717 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5718 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5719 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5720 if (req_ie)
5721 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5722 if (resp_ie)
5723 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5724
5725 if (genlmsg_end(msg, hdr) < 0) {
5726 nlmsg_free(msg);
5727 return;
5728 }
5729
463d0183
JB		 5730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5731 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5732 return;
5733
5734 nla_put_failure:
5735 genlmsg_cancel(msg, hdr);
5736 nlmsg_free(msg);
5737
5738}
5739
5740void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5741 struct net_device *netdev, u16 reason,
667503dd 5742 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5743{
5744 struct sk_buff *msg;
5745 void *hdr;
5746
667503dd 5747 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5748 if (!msg)
5749 return;
5750
5751 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5752 if (!hdr) {
5753 nlmsg_free(msg);
5754 return;
5755 }
5756
5757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5759 if (from_ap && reason)
5760 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5761 if (from_ap)
5762 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5763 if (ie)
5764 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5765
5766 if (genlmsg_end(msg, hdr) < 0) {
5767 nlmsg_free(msg);
5768 return;
5769 }
5770
463d0183
JB		 5771 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5772 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5773 return;
5774
5775 nla_put_failure:
5776 genlmsg_cancel(msg, hdr);
5777 nlmsg_free(msg);
5778
5779}
5780
04a773ad
JB		 5781void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5782 struct net_device *netdev, const u8 *bssid,
5783 gfp_t gfp)
5784{
5785 struct sk_buff *msg;
5786 void *hdr;
5787
fd2120ca 5788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5789 if (!msg)
5790 return;
5791
5792 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5793 if (!hdr) {
5794 nlmsg_free(msg);
5795 return;
5796 }
5797
5798 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5799 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5800 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5801
5802 if (genlmsg_end(msg, hdr) < 0) {
5803 nlmsg_free(msg);
5804 return;
5805 }
5806
463d0183
JB		 5807 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5808 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5809 return;
5810
5811 nla_put_failure:
5812 genlmsg_cancel(msg, hdr);
5813 nlmsg_free(msg);
5814}
5815
a3b8b056
JM		 5816void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5817 struct net_device *netdev, const u8 *addr,
5818 enum nl80211_key_type key_type, int key_id,
e6d6e342 5819 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5820{
5821 struct sk_buff *msg;
5822 void *hdr;
5823
e6d6e342 5824 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5825 if (!msg)
5826 return;
5827
5828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5829 if (!hdr) {
5830 nlmsg_free(msg);
5831 return;
5832 }
5833
5834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5835 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5836 if (addr)
5837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5838 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5839 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5840 if (tsc)
5841 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5842
5843 if (genlmsg_end(msg, hdr) < 0) {
5844 nlmsg_free(msg);
5845 return;
5846 }
5847
463d0183
JB		 5848 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5849 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5850 return;
5851
5852 nla_put_failure:
5853 genlmsg_cancel(msg, hdr);
5854 nlmsg_free(msg);
5855}
5856
6bad8766
LR		 5857void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5858 struct ieee80211_channel *channel_before,
5859 struct ieee80211_channel *channel_after)
5860{
5861 struct sk_buff *msg;
5862 void *hdr;
5863 struct nlattr *nl_freq;
5864
fd2120ca 5865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5866 if (!msg)
5867 return;
5868
5869 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5870 if (!hdr) {
5871 nlmsg_free(msg);
5872 return;
5873 }
5874
5875 /*
5876 * Since we are applying the beacon hint to a wiphy we know its
5877 * wiphy_idx is valid
5878 */
5879 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5880
5881 /* Before */
5882 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5883 if (!nl_freq)
5884 goto nla_put_failure;
5885 if (nl80211_msg_put_channel(msg, channel_before))
5886 goto nla_put_failure;
5887 nla_nest_end(msg, nl_freq);
5888
5889 /* After */
5890 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5891 if (!nl_freq)
5892 goto nla_put_failure;
5893 if (nl80211_msg_put_channel(msg, channel_after))
5894 goto nla_put_failure;
5895 nla_nest_end(msg, nl_freq);
5896
5897 if (genlmsg_end(msg, hdr) < 0) {
5898 nlmsg_free(msg);
5899 return;
5900 }
5901
463d0183
JB		 5902 rcu_read_lock();
5903 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5904 GFP_ATOMIC);
5905 rcu_read_unlock();
6bad8766
LR		 5906
5907 return;
5908
5909nla_put_failure:
5910 genlmsg_cancel(msg, hdr);
5911 nlmsg_free(msg);
5912}
5913
9588bbd5
JM		 5914static void nl80211_send_remain_on_chan_event(
5915 int cmd, struct cfg80211_registered_device *rdev,
5916 struct net_device *netdev, u64 cookie,
5917 struct ieee80211_channel *chan,
5918 enum nl80211_channel_type channel_type,
5919 unsigned int duration, gfp_t gfp)
5920{
5921 struct sk_buff *msg;
5922 void *hdr;
5923
5924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5925 if (!msg)
5926 return;
5927
5928 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5929 if (!hdr) {
5930 nlmsg_free(msg);
5931 return;
5932 }
5933
5934 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5935 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5936 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5937 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5938 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5939
5940 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5941 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5942
5943 if (genlmsg_end(msg, hdr) < 0) {
5944 nlmsg_free(msg);
5945 return;
5946 }
5947
5948 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5949 nl80211_mlme_mcgrp.id, gfp);
5950 return;
5951
5952 nla_put_failure:
5953 genlmsg_cancel(msg, hdr);
5954 nlmsg_free(msg);
5955}
5956
5957void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5958 struct net_device *netdev, u64 cookie,
5959 struct ieee80211_channel *chan,
5960 enum nl80211_channel_type channel_type,
5961 unsigned int duration, gfp_t gfp)
5962{
5963 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5964 rdev, netdev, cookie, chan,
5965 channel_type, duration, gfp);
5966}
5967
5968void nl80211_send_remain_on_channel_cancel(
5969 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5970 u64 cookie, struct ieee80211_channel *chan,
5971 enum nl80211_channel_type channel_type, gfp_t gfp)
5972{
5973 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5974 rdev, netdev, cookie, chan,
5975 channel_type, 0, gfp);
5976}
5977
98b62183
JB		 5978void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5979 struct net_device *dev, const u8 *mac_addr,
5980 struct station_info *sinfo, gfp_t gfp)
5981{
5982 struct sk_buff *msg;
5983
5984 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5985 if (!msg)
5986 return;
5987
5988 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5989 nlmsg_free(msg);
5990 return;
5991 }
5992
5993 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5994 nl80211_mlme_mcgrp.id, gfp);
5995}
5996
ec15e68b
JM		 5997void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
5998 struct net_device *dev, const u8 *mac_addr,
5999 gfp_t gfp)
6000{
6001 struct sk_buff *msg;
6002 void *hdr;
6003
6004 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6005 if (!msg)
6006 return;
6007
6008 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6009 if (!hdr) {
6010 nlmsg_free(msg);
6011 return;
6012 }
6013
6014 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6015 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6016
6017 if (genlmsg_end(msg, hdr) < 0) {
6018 nlmsg_free(msg);
6019 return;
6020 }
6021
6022 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6023 nl80211_mlme_mcgrp.id, gfp);
6024 return;
6025
6026 nla_put_failure:
6027 genlmsg_cancel(msg, hdr);
6028 nlmsg_free(msg);
6029}
6030
2e161f78
JB		 6031int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6032 struct net_device *netdev, u32 nlpid,
6033 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6034{
6035 struct sk_buff *msg;
6036 void *hdr;
6037 int err;
6038
6039 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6040 if (!msg)
6041 return -ENOMEM;
6042
2e161f78 6043 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6044 if (!hdr) {
6045 nlmsg_free(msg);
6046 return -ENOMEM;
6047 }
6048
6049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6051 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6052 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6053
6054 err = genlmsg_end(msg, hdr);
6055 if (err < 0) {
6056 nlmsg_free(msg);
6057 return err;
6058 }
6059
6060 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6061 if (err < 0)
6062 return err;
6063 return 0;
6064
6065 nla_put_failure:
6066 genlmsg_cancel(msg, hdr);
6067 nlmsg_free(msg);
6068 return -ENOBUFS;
6069}
6070
2e161f78
JB		 6071void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6072 struct net_device *netdev, u64 cookie,
6073 const u8 *buf, size_t len, bool ack,
6074 gfp_t gfp)
026331c4
JM		 6075{
6076 struct sk_buff *msg;
6077 void *hdr;
6078
6079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6080 if (!msg)
6081 return;
6082
2e161f78 6083 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6084 if (!hdr) {
6085 nlmsg_free(msg);
6086 return;
6087 }
6088
6089 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6090 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6091 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6092 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6093 if (ack)
6094 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6095
6096 if (genlmsg_end(msg, hdr) < 0) {
6097 nlmsg_free(msg);
6098 return;
6099 }
6100
6101 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6102 return;
6103
6104 nla_put_failure:
6105 genlmsg_cancel(msg, hdr);
6106 nlmsg_free(msg);
6107}
6108
d6dc1a38
JO		 6109void
6110nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6111 struct net_device *netdev,
6112 enum nl80211_cqm_rssi_threshold_event rssi_event,
6113 gfp_t gfp)
6114{
6115 struct sk_buff *msg;
6116 struct nlattr *pinfoattr;
6117 void *hdr;
6118
6119 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6120 if (!msg)
6121 return;
6122
6123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6124 if (!hdr) {
6125 nlmsg_free(msg);
6126 return;
6127 }
6128
6129 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6130 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6131
6132 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6133 if (!pinfoattr)
6134 goto nla_put_failure;
6135
6136 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6137 rssi_event);
6138
6139 nla_nest_end(msg, pinfoattr);
6140
6141 if (genlmsg_end(msg, hdr) < 0) {
6142 nlmsg_free(msg);
6143 return;
6144 }
6145
6146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6147 nl80211_mlme_mcgrp.id, gfp);
6148 return;
6149
6150 nla_put_failure:
6151 genlmsg_cancel(msg, hdr);
6152 nlmsg_free(msg);
6153}
6154
c063dbf5
JB		 6155void
6156nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6157 struct net_device *netdev, const u8 *peer,
6158 u32 num_packets, gfp_t gfp)
6159{
6160 struct sk_buff *msg;
6161 struct nlattr *pinfoattr;
6162 void *hdr;
6163
6164 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6165 if (!msg)
6166 return;
6167
6168 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6169 if (!hdr) {
6170 nlmsg_free(msg);
6171 return;
6172 }
6173
6174 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6175 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6176 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6177
6178 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6179 if (!pinfoattr)
6180 goto nla_put_failure;
6181
6182 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6183
6184 nla_nest_end(msg, pinfoattr);
6185
6186 if (genlmsg_end(msg, hdr) < 0) {
6187 nlmsg_free(msg);
6188 return;
6189 }
6190
6191 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6192 nl80211_mlme_mcgrp.id, gfp);
6193 return;
6194
6195 nla_put_failure:
6196 genlmsg_cancel(msg, hdr);
6197 nlmsg_free(msg);
6198}
6199
026331c4
JM		 6200static int nl80211_netlink_notify(struct notifier_block * nb,
6201 unsigned long state,
6202 void *_notify)
6203{
6204 struct netlink_notify *notify = _notify;
6205 struct cfg80211_registered_device *rdev;
6206 struct wireless_dev *wdev;
6207
6208 if (state != NETLINK_URELEASE)
6209 return NOTIFY_DONE;
6210
6211 rcu_read_lock();
6212
6213 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6214 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 6215 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 6216
6217 rcu_read_unlock();
6218
6219 return NOTIFY_DONE;
6220}
6221
6222static struct notifier_block nl80211_netlink_notifier = {
6223 .notifier_call = nl80211_netlink_notify,
6224};
6225
55682965
JB		 6226/* initialisation/exit functions */
6227
6228int nl80211_init(void)
6229{
0d63cbb5 6230 int err;
55682965 6231
0d63cbb5
MM		 6232 err = genl_register_family_with_ops(&nl80211_fam,
6233 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 6234 if (err)
6235 return err;
6236
55682965
JB		 6237 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6238 if (err)
6239 goto err_out;
6240
2a519311
JB		 6241 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6242 if (err)
6243 goto err_out;
6244
73d54c9e
LR		 6245 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6246 if (err)
6247 goto err_out;
6248
6039f6d2
JM		 6249 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6250 if (err)
6251 goto err_out;
6252
aff89a9b
JB		 6253#ifdef CONFIG_NL80211_TESTMODE
6254 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6255 if (err)
6256 goto err_out;
6257#endif
6258
026331c4
JM		 6259 err = netlink_register_notifier(&nl80211_netlink_notifier);
6260 if (err)
6261 goto err_out;
6262
55682965
JB		 6263 return 0;
6264 err_out:
6265 genl_unregister_family(&nl80211_fam);
6266 return err;
6267}
6268
6269void nl80211_exit(void)
6270{
026331c4 6271 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6272 genl_unregister_family(&nl80211_fam);
6273}
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