projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
cfg80211/nl80211: Add userspace authentication flag to mesh setup
[GitHub/mt8127/android_kernel_alcatel_ttab.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 },
5727ef1b
JB		 1928};
1929
eccb8e8f
JB		 1930static int parse_station_flags(struct genl_info *info,
1931 struct station_parameters *params)
5727ef1b
JB		 1932{
1933 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1934 struct nlattr *nla;
5727ef1b
JB		 1935 int flag;
1936
eccb8e8f
JB		 1937 /*
1938 * Try parsing the new attribute first so userspace
1939 * can specify both for older kernels.
1940 */
1941 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1942 if (nla) {
1943 struct nl80211_sta_flag_update *sta_flags;
1944
1945 sta_flags = nla_data(nla);
1946 params->sta_flags_mask = sta_flags->mask;
1947 params->sta_flags_set = sta_flags->set;
1948 if ((params->sta_flags_mask |
1949 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1950 return -EINVAL;
1951 return 0;
1952 }
1953
1954 /* if present, parse the old attribute */
5727ef1b 1955
eccb8e8f 1956 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1957 if (!nla)
1958 return 0;
1959
1960 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1961 nla, sta_flags_policy))
1962 return -EINVAL;
1963
eccb8e8f
JB		 1964 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1965 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1966
1967 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1968 if (flags[flag])
eccb8e8f 1969 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1970
1971 return 0;
1972}
1973
c8dcfd8a
FF		 1974static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
1975 int attr)
1976{
1977 struct nlattr *rate;
1978 u16 bitrate;
1979
1980 rate = nla_nest_start(msg, attr);
1981 if (!rate)
1982 goto nla_put_failure;
1983
1984 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1985 bitrate = cfg80211_calculate_bitrate(info);
1986 if (bitrate > 0)
1987 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1988
1989 if (info->flags & RATE_INFO_FLAGS_MCS)
1990 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
1991 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1992 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1993 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
1994 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1995
1996 nla_nest_end(msg, rate);
1997 return true;
1998
1999nla_put_failure:
2000 return false;
2001}
2002
fd5b74dc
JB		 2003static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2004 int flags, struct net_device *dev,
98b62183 2005 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2006{
2007 void *hdr;
f4263c98 2008 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2009
2010 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2011 if (!hdr)
2012 return -1;
2013
2014 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2015 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2016
f5ea9120
JB		 2017 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2018
2ec600d6
LCC		 2019 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2020 if (!sinfoattr)
fd5b74dc 2021 goto nla_put_failure;
2ec600d6
LCC		 2022 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2023 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2024 sinfo->inactive_time);
2025 if (sinfo->filled & STATION_INFO_RX_BYTES)
2026 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2027 sinfo->rx_bytes);
2028 if (sinfo->filled & STATION_INFO_TX_BYTES)
2029 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2030 sinfo->tx_bytes);
2031 if (sinfo->filled & STATION_INFO_LLID)
2032 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2033 sinfo->llid);
2034 if (sinfo->filled & STATION_INFO_PLID)
2035 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2036 sinfo->plid);
2037 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2038 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2039 sinfo->plink_state);
420e7fab
HR		 2040 if (sinfo->filled & STATION_INFO_SIGNAL)
2041 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2042 sinfo->signal);
541a45a1
BR		 2043 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2044 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2045 sinfo->signal_avg);
420e7fab 2046 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2047 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2048 NL80211_STA_INFO_TX_BITRATE))
2049 goto nla_put_failure;
2050 }
2051 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2052 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2053 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2054 goto nla_put_failure;
420e7fab 2055 }
98c8a60a
JM		 2056 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2057 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2058 sinfo->rx_packets);
2059 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2060 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2061 sinfo->tx_packets);
b206b4ef
BR		 2062 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2063 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2064 sinfo->tx_retries);
2065 if (sinfo->filled & STATION_INFO_TX_FAILED)
2066 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2067 sinfo->tx_failed);
f4263c98
PS		 2068 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2069 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2070 if (!bss_param)
2071 goto nla_put_failure;
2072
2073 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2074 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2075 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2076 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2077 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2078 NLA_PUT_FLAG(msg,
2079 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2080 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2081 sinfo->bss_param.dtim_period);
2082 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2083 sinfo->bss_param.beacon_interval);
2084
2085 nla_nest_end(msg, bss_param);
2086 }
2ec600d6 2087 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 2088
2089 return genlmsg_end(msg, hdr);
2090
2091 nla_put_failure:
bc3ed28c
TG		 2092 genlmsg_cancel(msg, hdr);
2093 return -EMSGSIZE;
fd5b74dc
JB		 2094}
2095
2ec600d6 2096static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2097 struct netlink_callback *cb)
2ec600d6 2098{
2ec600d6
LCC		 2099 struct station_info sinfo;
2100 struct cfg80211_registered_device *dev;
bba95fef 2101 struct net_device *netdev;
2ec600d6 2102 u8 mac_addr[ETH_ALEN];
bba95fef 2103 int sta_idx = cb->args[1];
2ec600d6 2104 int err;
2ec600d6 2105
67748893
JB		 2106 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2107 if (err)
2108 return err;
bba95fef
JB		 2109
2110 if (!dev->ops->dump_station) {
eec60b03 2111 err = -EOPNOTSUPP;
bba95fef
JB		 2112 goto out_err;
2113 }
2114
bba95fef
JB		 2115 while (1) {
2116 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2117 mac_addr, &sinfo);
2118 if (err == -ENOENT)
2119 break;
2120 if (err)
3b85875a 2121 goto out_err;
bba95fef
JB		 2122
2123 if (nl80211_send_station(skb,
2124 NETLINK_CB(cb->skb).pid,
2125 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2126 netdev, mac_addr,
2127 &sinfo) < 0)
2128 goto out;
2129
2130 sta_idx++;
2131 }
2132
2133
2134 out:
2135 cb->args[1] = sta_idx;
2136 err = skb->len;
bba95fef 2137 out_err:
67748893 2138 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2139
2140 return err;
2ec600d6 2141}
fd5b74dc 2142
5727ef1b
JB		 2143static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2144{
4c476991
JB		 2145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2146 struct net_device *dev = info->user_ptr[1];
2ec600d6 2147 struct station_info sinfo;
fd5b74dc
JB		 2148 struct sk_buff *msg;
2149 u8 *mac_addr = NULL;
4c476991 2150 int err;
fd5b74dc 2151
2ec600d6 2152 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2153
2154 if (!info->attrs[NL80211_ATTR_MAC])
2155 return -EINVAL;
2156
2157 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2158
4c476991
JB		 2159 if (!rdev->ops->get_station)
2160 return -EOPNOTSUPP;
3b85875a 2161
4c476991 2162 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2163 if (err)
4c476991 2164 return err;
2ec600d6 2165
fd2120ca 2166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2167 if (!msg)
4c476991 2168 return -ENOMEM;
fd5b74dc
JB		 2169
2170 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2171 dev, mac_addr, &sinfo) < 0) {
2172 nlmsg_free(msg);
2173 return -ENOBUFS;
2174 }
3b85875a 2175
4c476991 2176 return genlmsg_reply(msg, info);
5727ef1b
JB		 2177}
2178
2179/*
c258d2de 2180 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2181 */
463d0183 2182static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2183 struct cfg80211_registered_device *rdev,
2184 struct net_device **vlan)
2185{
463d0183 2186 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2187 *vlan = NULL;
2188
2189 if (vlanattr) {
463d0183
JB		 2190 *vlan = dev_get_by_index(genl_info_net(info),
2191 nla_get_u32(vlanattr));
5727ef1b
JB		 2192 if (!*vlan)
2193 return -ENODEV;
2194 if (!(*vlan)->ieee80211_ptr)
2195 return -EINVAL;
2196 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2197 return -EINVAL;
c258d2de
FF		 2198 if (!netif_running(*vlan))
2199 return -ENETDOWN;
5727ef1b
JB		 2200 }
2201 return 0;
2202}
2203
2204static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2205{
4c476991 2206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2207 int err;
4c476991 2208 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2209 struct station_parameters params;
2210 u8 *mac_addr = NULL;
2211
2212 memset(&params, 0, sizeof(params));
2213
2214 params.listen_interval = -1;
2215
2216 if (info->attrs[NL80211_ATTR_STA_AID])
2217 return -EINVAL;
2218
2219 if (!info->attrs[NL80211_ATTR_MAC])
2220 return -EINVAL;
2221
2222 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2223
2224 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2225 params.supported_rates =
2226 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2227 params.supported_rates_len =
2228 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2229 }
2230
2231 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2232 params.listen_interval =
2233 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2234
36aedc90
JM		 2235 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2236 params.ht_capa =
2237 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2238
eccb8e8f 2239 if (parse_station_flags(info, &params))
5727ef1b
JB		 2240 return -EINVAL;
2241
2ec600d6
LCC		 2242 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2243 params.plink_action =
2244 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2245
463d0183 2246 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2247 if (err)
034d655e 2248 goto out;
a97f4424
JB		 2249
2250 /* validate settings */
2251 err = 0;
2252
2253 switch (dev->ieee80211_ptr->iftype) {
2254 case NL80211_IFTYPE_AP:
2255 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2256 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2257 /* disallow mesh-specific things */
2258 if (params.plink_action)
2259 err = -EINVAL;
2260 break;
074ac8df 2261 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2262 case NL80211_IFTYPE_STATION:
2263 /* disallow everything but AUTHORIZED flag */
2264 if (params.plink_action)
2265 err = -EINVAL;
2266 if (params.vlan)
2267 err = -EINVAL;
2268 if (params.supported_rates)
2269 err = -EINVAL;
2270 if (params.ht_capa)
2271 err = -EINVAL;
2272 if (params.listen_interval >= 0)
2273 err = -EINVAL;
2274 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2275 err = -EINVAL;
2276 break;
2277 case NL80211_IFTYPE_MESH_POINT:
2278 /* disallow things mesh doesn't support */
2279 if (params.vlan)
2280 err = -EINVAL;
2281 if (params.ht_capa)
2282 err = -EINVAL;
2283 if (params.listen_interval >= 0)
2284 err = -EINVAL;
2285 if (params.supported_rates)
2286 err = -EINVAL;
2287 if (params.sta_flags_mask)
2288 err = -EINVAL;
2289 break;
2290 default:
2291 err = -EINVAL;
034d655e
JB		 2292 }
2293
5727ef1b
JB		 2294 if (err)
2295 goto out;
2296
79c97e97 2297 if (!rdev->ops->change_station) {
5727ef1b
JB		 2298 err = -EOPNOTSUPP;
2299 goto out;
2300 }
2301
79c97e97 2302 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2303
2304 out:
2305 if (params.vlan)
2306 dev_put(params.vlan);
3b85875a 2307
5727ef1b
JB		 2308 return err;
2309}
2310
2311static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2312{
4c476991 2313 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2314 int err;
4c476991 2315 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2316 struct station_parameters params;
2317 u8 *mac_addr = NULL;
2318
2319 memset(&params, 0, sizeof(params));
2320
2321 if (!info->attrs[NL80211_ATTR_MAC])
2322 return -EINVAL;
2323
5727ef1b
JB		 2324 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2325 return -EINVAL;
2326
2327 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2328 return -EINVAL;
2329
0e956c13
TLSC		 2330 if (!info->attrs[NL80211_ATTR_STA_AID])
2331 return -EINVAL;
2332
5727ef1b
JB		 2333 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2334 params.supported_rates =
2335 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2336 params.supported_rates_len =
2337 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2338 params.listen_interval =
2339 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2340
0e956c13
TLSC		 2341 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2342 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2343 return -EINVAL;
51b50fbe 2344
36aedc90
JM		 2345 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2346 params.ht_capa =
2347 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2348
eccb8e8f 2349 if (parse_station_flags(info, &params))
5727ef1b
JB		 2350 return -EINVAL;
2351
0e956c13 2352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2355 return -EINVAL;
0e956c13 2356
463d0183 2357 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2358 if (err)
e80cf853 2359 goto out;
a97f4424
JB		 2360
2361 /* validate settings */
2362 err = 0;
2363
79c97e97 2364 if (!rdev->ops->add_station) {
5727ef1b
JB		 2365 err = -EOPNOTSUPP;
2366 goto out;
2367 }
2368
79c97e97 2369 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2370
2371 out:
2372 if (params.vlan)
2373 dev_put(params.vlan);
5727ef1b
JB		 2374 return err;
2375}
2376
2377static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2378{
4c476991
JB		 2379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2380 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2381 u8 *mac_addr = NULL;
2382
2383 if (info->attrs[NL80211_ATTR_MAC])
2384 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2385
e80cf853 2386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2388 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2389 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2390 return -EINVAL;
5727ef1b 2391
4c476991
JB		 2392 if (!rdev->ops->del_station)
2393 return -EOPNOTSUPP;
3b85875a 2394
4c476991 2395 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2396}
2397
2ec600d6
LCC		 2398static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2399 int flags, struct net_device *dev,
2400 u8 *dst, u8 *next_hop,
2401 struct mpath_info *pinfo)
2402{
2403 void *hdr;
2404 struct nlattr *pinfoattr;
2405
2406 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2407 if (!hdr)
2408 return -1;
2409
2410 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2411 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2412 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2413
f5ea9120
JB		 2414 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2415
2ec600d6
LCC		 2416 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2417 if (!pinfoattr)
2418 goto nla_put_failure;
2419 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2420 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2421 pinfo->frame_qlen);
d19b3bf6
RP		 2422 if (pinfo->filled & MPATH_INFO_SN)
2423 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2424 pinfo->sn);
2ec600d6
LCC		 2425 if (pinfo->filled & MPATH_INFO_METRIC)
2426 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2427 pinfo->metric);
2428 if (pinfo->filled & MPATH_INFO_EXPTIME)
2429 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2430 pinfo->exptime);
2431 if (pinfo->filled & MPATH_INFO_FLAGS)
2432 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2433 pinfo->flags);
2434 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2435 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2436 pinfo->discovery_timeout);
2437 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2438 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2439 pinfo->discovery_retries);
2440
2441 nla_nest_end(msg, pinfoattr);
2442
2443 return genlmsg_end(msg, hdr);
2444
2445 nla_put_failure:
bc3ed28c
TG		 2446 genlmsg_cancel(msg, hdr);
2447 return -EMSGSIZE;
2ec600d6
LCC		 2448}
2449
2450static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2451 struct netlink_callback *cb)
2ec600d6 2452{
2ec600d6
LCC		 2453 struct mpath_info pinfo;
2454 struct cfg80211_registered_device *dev;
bba95fef 2455 struct net_device *netdev;
2ec600d6
LCC		 2456 u8 dst[ETH_ALEN];
2457 u8 next_hop[ETH_ALEN];
bba95fef 2458 int path_idx = cb->args[1];
2ec600d6 2459 int err;
2ec600d6 2460
67748893
JB		 2461 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2462 if (err)
2463 return err;
bba95fef
JB		 2464
2465 if (!dev->ops->dump_mpath) {
eec60b03 2466 err = -EOPNOTSUPP;
bba95fef
JB		 2467 goto out_err;
2468 }
2469
eec60b03
JM		 2470 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2471 err = -EOPNOTSUPP;
0448b5fc 2472 goto out_err;
eec60b03
JM		 2473 }
2474
bba95fef
JB		 2475 while (1) {
2476 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2477 dst, next_hop, &pinfo);
2478 if (err == -ENOENT)
2ec600d6 2479 break;
bba95fef 2480 if (err)
3b85875a 2481 goto out_err;
2ec600d6 2482
bba95fef
JB		 2483 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2484 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2485 netdev, dst, next_hop,
2486 &pinfo) < 0)
2487 goto out;
2ec600d6 2488
bba95fef 2489 path_idx++;
2ec600d6 2490 }
2ec600d6 2491
2ec600d6 2492
bba95fef
JB		 2493 out:
2494 cb->args[1] = path_idx;
2495 err = skb->len;
bba95fef 2496 out_err:
67748893 2497 nl80211_finish_netdev_dump(dev);
bba95fef 2498 return err;
2ec600d6
LCC		 2499}
2500
2501static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2502{
4c476991 2503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2504 int err;
4c476991 2505 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2506 struct mpath_info pinfo;
2507 struct sk_buff *msg;
2508 u8 *dst = NULL;
2509 u8 next_hop[ETH_ALEN];
2510
2511 memset(&pinfo, 0, sizeof(pinfo));
2512
2513 if (!info->attrs[NL80211_ATTR_MAC])
2514 return -EINVAL;
2515
2516 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2517
4c476991
JB		 2518 if (!rdev->ops->get_mpath)
2519 return -EOPNOTSUPP;
2ec600d6 2520
4c476991
JB		 2521 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2522 return -EOPNOTSUPP;
eec60b03 2523
79c97e97 2524 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2525 if (err)
4c476991 2526 return err;
2ec600d6 2527
fd2120ca 2528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2529 if (!msg)
4c476991 2530 return -ENOMEM;
2ec600d6
LCC		 2531
2532 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2533 dev, dst, next_hop, &pinfo) < 0) {
2534 nlmsg_free(msg);
2535 return -ENOBUFS;
2536 }
3b85875a 2537
4c476991 2538 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2539}
2540
2541static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2542{
4c476991
JB		 2543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2544 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2545 u8 *dst = NULL;
2546 u8 *next_hop = NULL;
2547
2548 if (!info->attrs[NL80211_ATTR_MAC])
2549 return -EINVAL;
2550
2551 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2552 return -EINVAL;
2553
2554 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2555 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2556
4c476991
JB		 2557 if (!rdev->ops->change_mpath)
2558 return -EOPNOTSUPP;
35a8efe1 2559
4c476991
JB		 2560 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2561 return -EOPNOTSUPP;
2ec600d6 2562
4c476991 2563 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2564}
4c476991 2565
2ec600d6
LCC		 2566static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2567{
4c476991
JB		 2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2569 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2570 u8 *dst = NULL;
2571 u8 *next_hop = NULL;
2572
2573 if (!info->attrs[NL80211_ATTR_MAC])
2574 return -EINVAL;
2575
2576 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2577 return -EINVAL;
2578
2579 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2580 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2581
4c476991
JB		 2582 if (!rdev->ops->add_mpath)
2583 return -EOPNOTSUPP;
35a8efe1 2584
4c476991
JB		 2585 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2586 return -EOPNOTSUPP;
2ec600d6 2587
4c476991 2588 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2589}
2590
2591static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2592{
4c476991
JB		 2593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2594 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2595 u8 *dst = NULL;
2596
2597 if (info->attrs[NL80211_ATTR_MAC])
2598 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2599
4c476991
JB		 2600 if (!rdev->ops->del_mpath)
2601 return -EOPNOTSUPP;
3b85875a 2602
4c476991 2603 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2604}
2605
9f1ba906
JM		 2606static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2607{
4c476991
JB		 2608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2609 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2610 struct bss_parameters params;
2611
2612 memset(&params, 0, sizeof(params));
2613 /* default to not changing parameters */
2614 params.use_cts_prot = -1;
2615 params.use_short_preamble = -1;
2616 params.use_short_slot_time = -1;
fd8aaaf3 2617 params.ap_isolate = -1;
50b12f59 2618 params.ht_opmode = -1;
9f1ba906
JM		 2619
2620 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2621 params.use_cts_prot =
2622 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2623 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2624 params.use_short_preamble =
2625 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2626 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2627 params.use_short_slot_time =
2628 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2629 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2630 params.basic_rates =
2631 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2632 params.basic_rates_len =
2633 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2634 }
fd8aaaf3
FF		 2635 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2636 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2637 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2638 params.ht_opmode =
2639 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2640
4c476991
JB		 2641 if (!rdev->ops->change_bss)
2642 return -EOPNOTSUPP;
9f1ba906 2643
074ac8df 2644 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2645 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2646 return -EOPNOTSUPP;
3b85875a 2647
4c476991 2648 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2649}
2650
b54452b0 2651static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2652 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2653 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2654 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2655 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2656 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2657 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2658};
2659
2660static int parse_reg_rule(struct nlattr *tb[],
2661 struct ieee80211_reg_rule *reg_rule)
2662{
2663 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2664 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2665
2666 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2667 return -EINVAL;
2668 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2669 return -EINVAL;
2670 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2671 return -EINVAL;
2672 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2673 return -EINVAL;
2674 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2675 return -EINVAL;
2676
2677 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2678
2679 freq_range->start_freq_khz =
2680 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2681 freq_range->end_freq_khz =
2682 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2683 freq_range->max_bandwidth_khz =
2684 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2685
2686 power_rule->max_eirp =
2687 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2688
2689 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2690 power_rule->max_antenna_gain =
2691 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2692
2693 return 0;
2694}
2695
2696static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2697{
2698 int r;
2699 char *data = NULL;
2700
80778f18
LR		 2701 /*
2702 * You should only get this when cfg80211 hasn't yet initialized
2703 * completely when built-in to the kernel right between the time
2704 * window between nl80211_init() and regulatory_init(), if that is
2705 * even possible.
2706 */
2707 mutex_lock(&cfg80211_mutex);
2708 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2709 mutex_unlock(&cfg80211_mutex);
2710 return -EINPROGRESS;
80778f18 2711 }
fe33eb39 2712 mutex_unlock(&cfg80211_mutex);
80778f18 2713
fe33eb39
LR		 2714 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2715 return -EINVAL;
b2e1b302
LR		 2716
2717 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2718
fe33eb39
LR		 2719 r = regulatory_hint_user(data);
2720
b2e1b302
LR		 2721 return r;
2722}
2723
24bdd9f4 2724static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 2725 struct genl_info *info)
93da9cc1 2726{
4c476991 2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2728 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2729 struct wireless_dev *wdev = dev->ieee80211_ptr;
2730 struct mesh_config cur_params;
2731 int err = 0;
93da9cc1 2732 void *hdr;
2733 struct nlattr *pinfoattr;
2734 struct sk_buff *msg;
2735
29cbe68c
JB		 2736 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2737 return -EOPNOTSUPP;
2738
24bdd9f4 2739 if (!rdev->ops->get_mesh_config)
4c476991 2740 return -EOPNOTSUPP;
f3f92586 2741
29cbe68c
JB		 2742 wdev_lock(wdev);
2743 /* If not connected, get default parameters */
2744 if (!wdev->mesh_id_len)
2745 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2746 else
24bdd9f4 2747 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2748 &cur_params);
2749 wdev_unlock(wdev);
2750
93da9cc1 2751 if (err)
4c476991 2752 return err;
93da9cc1 2753
2754 /* Draw up a netlink message to send back */
fd2120ca 2755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2756 if (!msg)
2757 return -ENOMEM;
93da9cc1 2758 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 2759 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 2760 if (!hdr)
efe1cf0c 2761 goto out;
24bdd9f4 2762 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 2763 if (!pinfoattr)
2764 goto nla_put_failure;
2765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2766 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2767 cur_params.dot11MeshRetryTimeout);
2768 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2769 cur_params.dot11MeshConfirmTimeout);
2770 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2771 cur_params.dot11MeshHoldingTimeout);
2772 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2773 cur_params.dot11MeshMaxPeerLinks);
2774 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2775 cur_params.dot11MeshMaxRetries);
2776 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2777 cur_params.dot11MeshTTL);
45904f21
JC		 2778 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2779 cur_params.element_ttl);
93da9cc1 2780 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2781 cur_params.auto_open_plinks);
2782 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2783 cur_params.dot11MeshHWMPmaxPREQretries);
2784 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2785 cur_params.path_refresh_time);
2786 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2787 cur_params.min_discovery_timeout);
2788 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2789 cur_params.dot11MeshHWMPactivePathTimeout);
2790 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2791 cur_params.dot11MeshHWMPpreqMinInterval);
2792 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2793 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2794 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2795 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2796 nla_nest_end(msg, pinfoattr);
2797 genlmsg_end(msg, hdr);
4c476991 2798 return genlmsg_reply(msg, info);
93da9cc1 2799
3b85875a 2800 nla_put_failure:
93da9cc1 2801 genlmsg_cancel(msg, hdr);
efe1cf0c 2802 out:
d080e275 2803 nlmsg_free(msg);
4c476991 2804 return -ENOBUFS;
93da9cc1 2805}
2806
b54452b0 2807static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2808 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2809 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2810 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2811 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2812 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2813 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2814 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2815 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2816
2817 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2818 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2819 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2820 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2821 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2822 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2823};
2824
c80d545d
JC		 2825static const struct nla_policy
2826 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2827 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2828 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 2829 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 2830 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d
JC		 2831 .len = IEEE80211_MAX_DATA_LEN },
2832};
2833
24bdd9f4 2834static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 2835 struct mesh_config *cfg,
2836 u32 *mask_out)
93da9cc1 2837{
93da9cc1 2838 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2839 u32 mask = 0;
93da9cc1 2840
bd90fdcc
JB		 2841#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2842do {\
2843 if (table[attr_num]) {\
2844 cfg->param = nla_fn(table[attr_num]); \
2845 mask |= (1 << (attr_num - 1)); \
2846 } \
2847} while (0);\
2848
2849
24bdd9f4 2850 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 2851 return -EINVAL;
2852 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 2853 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 2854 nl80211_meshconf_params_policy))
93da9cc1 2855 return -EINVAL;
2856
93da9cc1 2857 /* This makes sure that there aren't more than 32 mesh config
2858 * parameters (otherwise our bitfield scheme would not work.) */
2859 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2860
2861 /* Fill in the params struct */
93da9cc1 2862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2863 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2865 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2867 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2869 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2871 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2872 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2873 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2875 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2877 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2878 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2879 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2880 nla_get_u8);
2881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2882 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2883 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2884 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2885 nla_get_u16);
2886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2887 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2888 nla_get_u32);
2889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2890 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2891 nla_get_u16);
2892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2893 dot11MeshHWMPnetDiameterTraversalTime,
2894 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2895 nla_get_u16);
63c5723b
RP		 2896 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2897 dot11MeshHWMPRootMode, mask,
2898 NL80211_MESHCONF_HWMP_ROOTMODE,
2899 nla_get_u8);
bd90fdcc
JB		 2900 if (mask_out)
2901 *mask_out = mask;
c80d545d 2902
bd90fdcc
JB		 2903 return 0;
2904
2905#undef FILL_IN_MESH_PARAM_IF_SET
2906}
2907
c80d545d
JC		 2908static int nl80211_parse_mesh_setup(struct genl_info *info,
2909 struct mesh_setup *setup)
2910{
2911 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
2912
2913 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
2914 return -EINVAL;
2915 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
2916 info->attrs[NL80211_ATTR_MESH_SETUP],
2917 nl80211_mesh_setup_params_policy))
2918 return -EINVAL;
2919
2920 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
2921 setup->path_sel_proto =
2922 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
2923 IEEE80211_PATH_PROTOCOL_VENDOR :
2924 IEEE80211_PATH_PROTOCOL_HWMP;
2925
2926 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
2927 setup->path_metric =
2928 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
2929 IEEE80211_PATH_METRIC_VENDOR :
2930 IEEE80211_PATH_METRIC_AIRTIME;
2931
581a8b0f
JC		 2932
2933 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 2934 struct nlattr *ieattr =
581a8b0f 2935 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 2936 if (!is_valid_ie_attr(ieattr))
2937 return -EINVAL;
581a8b0f
JC		 2938 setup->ie = nla_data(ieattr);
2939 setup->ie_len = nla_len(ieattr);
c80d545d 2940 }
15d5dda6 2941 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
c80d545d
JC		 2942
2943 return 0;
2944}
2945
24bdd9f4 2946static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 2947 struct genl_info *info)
bd90fdcc
JB		 2948{
2949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2950 struct net_device *dev = info->user_ptr[1];
29cbe68c 2951 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 2952 struct mesh_config cfg;
2953 u32 mask;
2954 int err;
2955
29cbe68c
JB		 2956 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2957 return -EOPNOTSUPP;
2958
24bdd9f4 2959 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 2960 return -EOPNOTSUPP;
2961
24bdd9f4 2962 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 2963 if (err)
2964 return err;
2965
29cbe68c
JB		 2966 wdev_lock(wdev);
2967 if (!wdev->mesh_id_len)
2968 err = -ENOLINK;
2969
2970 if (!err)
24bdd9f4 2971 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2972 mask, &cfg);
2973
2974 wdev_unlock(wdev);
2975
2976 return err;
93da9cc1 2977}
2978
f130347c
LR		 2979static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2980{
2981 struct sk_buff *msg;
2982 void *hdr = NULL;
2983 struct nlattr *nl_reg_rules;
2984 unsigned int i;
2985 int err = -EINVAL;
2986
a1794390 2987 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2988
2989 if (!cfg80211_regdomain)
2990 goto out;
2991
fd2120ca 2992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2993 if (!msg) {
2994 err = -ENOBUFS;
2995 goto out;
2996 }
2997
2998 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2999 NL80211_CMD_GET_REG);
3000 if (!hdr)
efe1cf0c 3001 goto put_failure;
f130347c
LR		 3002
3003 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3004 cfg80211_regdomain->alpha2);
3005
3006 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3007 if (!nl_reg_rules)
3008 goto nla_put_failure;
3009
3010 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3011 struct nlattr *nl_reg_rule;
3012 const struct ieee80211_reg_rule *reg_rule;
3013 const struct ieee80211_freq_range *freq_range;
3014 const struct ieee80211_power_rule *power_rule;
3015
3016 reg_rule = &cfg80211_regdomain->reg_rules[i];
3017 freq_range = &reg_rule->freq_range;
3018 power_rule = &reg_rule->power_rule;
3019
3020 nl_reg_rule = nla_nest_start(msg, i);
3021 if (!nl_reg_rule)
3022 goto nla_put_failure;
3023
3024 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3025 reg_rule->flags);
3026 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3027 freq_range->start_freq_khz);
3028 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3029 freq_range->end_freq_khz);
3030 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3031 freq_range->max_bandwidth_khz);
3032 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3033 power_rule->max_antenna_gain);
3034 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3035 power_rule->max_eirp);
3036
3037 nla_nest_end(msg, nl_reg_rule);
3038 }
3039
3040 nla_nest_end(msg, nl_reg_rules);
3041
3042 genlmsg_end(msg, hdr);
134e6375 3043 err = genlmsg_reply(msg, info);
f130347c
LR		 3044 goto out;
3045
3046nla_put_failure:
3047 genlmsg_cancel(msg, hdr);
efe1cf0c 3048put_failure:
d080e275 3049 nlmsg_free(msg);
f130347c
LR		 3050 err = -EMSGSIZE;
3051out:
a1794390 3052 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3053 return err;
3054}
3055
b2e1b302
LR		 3056static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3057{
3058 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3059 struct nlattr *nl_reg_rule;
3060 char *alpha2 = NULL;
3061 int rem_reg_rules = 0, r = 0;
3062 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3063 struct ieee80211_regdomain *rd = NULL;
3064
3065 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3066 return -EINVAL;
3067
3068 if (!info->attrs[NL80211_ATTR_REG_RULES])
3069 return -EINVAL;
3070
3071 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3072
3073 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3074 rem_reg_rules) {
3075 num_rules++;
3076 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3077 return -EINVAL;
b2e1b302
LR		 3078 }
3079
61405e97
LR		 3080 mutex_lock(&cfg80211_mutex);
3081
d0e18f83
LR		 3082 if (!reg_is_valid_request(alpha2)) {
3083 r = -EINVAL;
3084 goto bad_reg;
3085 }
b2e1b302
LR		 3086
3087 size_of_regd = sizeof(struct ieee80211_regdomain) +
3088 (num_rules * sizeof(struct ieee80211_reg_rule));
3089
3090 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3091 if (!rd) {
3092 r = -ENOMEM;
3093 goto bad_reg;
3094 }
b2e1b302
LR		 3095
3096 rd->n_reg_rules = num_rules;
3097 rd->alpha2[0] = alpha2[0];
3098 rd->alpha2[1] = alpha2[1];
3099
3100 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3101 rem_reg_rules) {
3102 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3103 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3104 reg_rule_policy);
3105 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3106 if (r)
3107 goto bad_reg;
3108
3109 rule_idx++;
3110
d0e18f83
LR		 3111 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3112 r = -EINVAL;
b2e1b302 3113 goto bad_reg;
d0e18f83 3114 }
b2e1b302
LR		 3115 }
3116
3117 BUG_ON(rule_idx != num_rules);
3118
b2e1b302 3119 r = set_regdom(rd);
61405e97 3120
a1794390 3121 mutex_unlock(&cfg80211_mutex);
d0e18f83 3122
b2e1b302
LR		 3123 return r;
3124
d2372b31 3125 bad_reg:
61405e97 3126 mutex_unlock(&cfg80211_mutex);
b2e1b302 3127 kfree(rd);
d0e18f83 3128 return r;
b2e1b302
LR		 3129}
3130
83f5e2cf
JB		 3131static int validate_scan_freqs(struct nlattr *freqs)
3132{
3133 struct nlattr *attr1, *attr2;
3134 int n_channels = 0, tmp1, tmp2;
3135
3136 nla_for_each_nested(attr1, freqs, tmp1) {
3137 n_channels++;
3138 /*
3139 * Some hardware has a limited channel list for
3140 * scanning, and it is pretty much nonsensical
3141 * to scan for a channel twice, so disallow that
3142 * and don't require drivers to check that the
3143 * channel list they get isn't longer than what
3144 * they can scan, as long as they can scan all
3145 * the channels they registered at once.
3146 */
3147 nla_for_each_nested(attr2, freqs, tmp2)
3148 if (attr1 != attr2 &&
3149 nla_get_u32(attr1) == nla_get_u32(attr2))
3150 return 0;
3151 }
3152
3153 return n_channels;
3154}
3155
2a519311
JB		 3156static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3157{
4c476991
JB		 3158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3159 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 3160 struct cfg80211_scan_request *request;
3161 struct cfg80211_ssid *ssid;
3162 struct ieee80211_channel *channel;
3163 struct nlattr *attr;
3164 struct wiphy *wiphy;
83f5e2cf 3165 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 3166 enum ieee80211_band band;
70692ad2 3167 size_t ie_len;
2a519311 3168
f4a11bb0
JB		 3169 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3170 return -EINVAL;
3171
79c97e97 3172 wiphy = &rdev->wiphy;
2a519311 3173
4c476991
JB		 3174 if (!rdev->ops->scan)
3175 return -EOPNOTSUPP;
2a519311 3176
4c476991
JB		 3177 if (rdev->scan_req)
3178 return -EBUSY;
2a519311
JB		 3179
3180 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3181 n_channels = validate_scan_freqs(
3182 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3183 if (!n_channels)
3184 return -EINVAL;
2a519311 3185 } else {
83f5e2cf
JB		 3186 n_channels = 0;
3187
2a519311
JB		 3188 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3189 if (wiphy->bands[band])
3190 n_channels += wiphy->bands[band]->n_channels;
3191 }
3192
3193 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3194 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3195 n_ssids++;
3196
4c476991
JB		 3197 if (n_ssids > wiphy->max_scan_ssids)
3198 return -EINVAL;
2a519311 3199
70692ad2
JM		 3200 if (info->attrs[NL80211_ATTR_IE])
3201 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3202 else
3203 ie_len = 0;
3204
4c476991
JB		 3205 if (ie_len > wiphy->max_scan_ie_len)
3206 return -EINVAL;
18a83659 3207
2a519311
JB		 3208 request = kzalloc(sizeof(*request)
3209 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3210 + sizeof(channel) * n_channels
3211 + ie_len, GFP_KERNEL);
4c476991
JB		 3212 if (!request)
3213 return -ENOMEM;
2a519311 3214
2a519311 3215 if (n_ssids)
5ba63533 3216 request->ssids = (void *)&request->channels[n_channels];
2a519311 3217 request->n_ssids = n_ssids;
70692ad2
JM		 3218 if (ie_len) {
3219 if (request->ssids)
3220 request->ie = (void *)(request->ssids + n_ssids);
3221 else
3222 request->ie = (void *)(request->channels + n_channels);
3223 }
2a519311 3224
584991dc 3225 i = 0;
2a519311
JB		 3226 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3227 /* user specified, bail out if channel not found */
2a519311 3228 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3229 struct ieee80211_channel *chan;
3230
3231 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3232
3233 if (!chan) {
2a519311
JB		 3234 err = -EINVAL;
3235 goto out_free;
3236 }
584991dc
JB		 3237
3238 /* ignore disabled channels */
3239 if (chan->flags & IEEE80211_CHAN_DISABLED)
3240 continue;
3241
3242 request->channels[i] = chan;
2a519311
JB		 3243 i++;
3244 }
3245 } else {
3246 /* all channels */
2a519311
JB		 3247 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3248 int j;
3249 if (!wiphy->bands[band])
3250 continue;
3251 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3252 struct ieee80211_channel *chan;
3253
3254 chan = &wiphy->bands[band]->channels[j];
3255
3256 if (chan->flags & IEEE80211_CHAN_DISABLED)
3257 continue;
3258
3259 request->channels[i] = chan;
2a519311
JB		 3260 i++;
3261 }
3262 }
3263 }
3264
584991dc
JB		 3265 if (!i) {
3266 err = -EINVAL;
3267 goto out_free;
3268 }
3269
3270 request->n_channels = i;
3271
2a519311
JB		 3272 i = 0;
3273 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3274 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3275 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3276 err = -EINVAL;
3277 goto out_free;
3278 }
3279 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3280 request->ssids[i].ssid_len = nla_len(attr);
3281 i++;
3282 }
3283 }
3284
70692ad2
JM		 3285 if (info->attrs[NL80211_ATTR_IE]) {
3286 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3287 memcpy((void *)request->ie,
3288 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3289 request->ie_len);
3290 }
3291
463d0183 3292 request->dev = dev;
79c97e97 3293 request->wiphy = &rdev->wiphy;
2a519311 3294
79c97e97
JB		 3295 rdev->scan_req = request;
3296 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3297
463d0183 3298 if (!err) {
79c97e97 3299 nl80211_send_scan_start(rdev, dev);
463d0183 3300 dev_hold(dev);
4c476991 3301 } else {
2a519311 3302 out_free:
79c97e97 3303 rdev->scan_req = NULL;
2a519311
JB		 3304 kfree(request);
3305 }
3b85875a 3306
2a519311
JB		 3307 return err;
3308}
3309
3310static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3311 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3312 struct wireless_dev *wdev,
3313 struct cfg80211_internal_bss *intbss)
2a519311 3314{
48ab905d 3315 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3316 void *hdr;
3317 struct nlattr *bss;
48ab905d
JB		 3318 int i;
3319
3320 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3321
3322 hdr = nl80211hdr_put(msg, pid, seq, flags,
3323 NL80211_CMD_NEW_SCAN_RESULTS);
3324 if (!hdr)
3325 return -1;
3326
f5ea9120 3327 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3328 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3329
3330 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3331 if (!bss)
3332 goto nla_put_failure;
3333 if (!is_zero_ether_addr(res->bssid))
3334 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3335 if (res->information_elements && res->len_information_elements)
3336 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3337 res->len_information_elements,
3338 res->information_elements);
34a6eddb
JM		 3339 if (res->beacon_ies && res->len_beacon_ies &&
3340 res->beacon_ies != res->information_elements)
3341 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3342 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3343 if (res->tsf)
3344 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3345 if (res->beacon_interval)
3346 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3347 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3348 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3349 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3350 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3351
77965c97 3352 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3353 case CFG80211_SIGNAL_TYPE_MBM:
3354 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3355 break;
3356 case CFG80211_SIGNAL_TYPE_UNSPEC:
3357 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3358 break;
3359 default:
3360 break;
3361 }
3362
48ab905d 3363 switch (wdev->iftype) {
074ac8df 3364 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3365 case NL80211_IFTYPE_STATION:
3366 if (intbss == wdev->current_bss)
3367 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3368 NL80211_BSS_STATUS_ASSOCIATED);
3369 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3370 if (intbss != wdev->auth_bsses[i])
3371 continue;
3372 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3373 NL80211_BSS_STATUS_AUTHENTICATED);
3374 break;
3375 }
3376 break;
3377 case NL80211_IFTYPE_ADHOC:
3378 if (intbss == wdev->current_bss)
3379 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3380 NL80211_BSS_STATUS_IBSS_JOINED);
3381 break;
3382 default:
3383 break;
3384 }
3385
2a519311
JB		 3386 nla_nest_end(msg, bss);
3387
3388 return genlmsg_end(msg, hdr);
3389
3390 nla_put_failure:
3391 genlmsg_cancel(msg, hdr);
3392 return -EMSGSIZE;
3393}
3394
3395static int nl80211_dump_scan(struct sk_buff *skb,
3396 struct netlink_callback *cb)
3397{
48ab905d
JB		 3398 struct cfg80211_registered_device *rdev;
3399 struct net_device *dev;
2a519311 3400 struct cfg80211_internal_bss *scan;
48ab905d 3401 struct wireless_dev *wdev;
2a519311
JB		 3402 int start = cb->args[1], idx = 0;
3403 int err;
3404
67748893
JB		 3405 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3406 if (err)
3407 return err;
2a519311 3408
48ab905d 3409 wdev = dev->ieee80211_ptr;
2a519311 3410
48ab905d
JB		 3411 wdev_lock(wdev);
3412 spin_lock_bh(&rdev->bss_lock);
3413 cfg80211_bss_expire(rdev);
3414
3415 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3416 if (++idx <= start)
3417 continue;
3418 if (nl80211_send_bss(skb,
3419 NETLINK_CB(cb->skb).pid,
3420 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3421 rdev, wdev, scan) < 0) {
2a519311 3422 idx--;
67748893 3423 break;
2a519311
JB		 3424 }
3425 }
3426
48ab905d
JB		 3427 spin_unlock_bh(&rdev->bss_lock);
3428 wdev_unlock(wdev);
2a519311
JB		 3429
3430 cb->args[1] = idx;
67748893 3431 nl80211_finish_netdev_dump(rdev);
2a519311 3432
67748893 3433 return skb->len;
2a519311
JB		 3434}
3435
61fa713c
HS		 3436static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3437 int flags, struct net_device *dev,
3438 struct survey_info *survey)
3439{
3440 void *hdr;
3441 struct nlattr *infoattr;
3442
3443 /* Survey without a channel doesn't make sense */
3444 if (!survey->channel)
3445 return -EINVAL;
3446
3447 hdr = nl80211hdr_put(msg, pid, seq, flags,
3448 NL80211_CMD_NEW_SURVEY_RESULTS);
3449 if (!hdr)
3450 return -ENOMEM;
3451
3452 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3453
3454 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3455 if (!infoattr)
3456 goto nla_put_failure;
3457
3458 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3459 survey->channel->center_freq);
3460 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3461 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3462 survey->noise);
17e5a808
FF		 3463 if (survey->filled & SURVEY_INFO_IN_USE)
3464 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3465 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3466 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3467 survey->channel_time);
3468 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3469 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3470 survey->channel_time_busy);
3471 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3472 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3473 survey->channel_time_ext_busy);
3474 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3475 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3476 survey->channel_time_rx);
3477 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3478 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3479 survey->channel_time_tx);
61fa713c
HS		 3480
3481 nla_nest_end(msg, infoattr);
3482
3483 return genlmsg_end(msg, hdr);
3484
3485 nla_put_failure:
3486 genlmsg_cancel(msg, hdr);
3487 return -EMSGSIZE;
3488}
3489
3490static int nl80211_dump_survey(struct sk_buff *skb,
3491 struct netlink_callback *cb)
3492{
3493 struct survey_info survey;
3494 struct cfg80211_registered_device *dev;
3495 struct net_device *netdev;
61fa713c
HS		 3496 int survey_idx = cb->args[1];
3497 int res;
3498
67748893
JB		 3499 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3500 if (res)
3501 return res;
61fa713c
HS		 3502
3503 if (!dev->ops->dump_survey) {
3504 res = -EOPNOTSUPP;
3505 goto out_err;
3506 }
3507
3508 while (1) {
3509 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3510 &survey);
3511 if (res == -ENOENT)
3512 break;
3513 if (res)
3514 goto out_err;
3515
3516 if (nl80211_send_survey(skb,
3517 NETLINK_CB(cb->skb).pid,
3518 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3519 netdev,
3520 &survey) < 0)
3521 goto out;
3522 survey_idx++;
3523 }
3524
3525 out:
3526 cb->args[1] = survey_idx;
3527 res = skb->len;
3528 out_err:
67748893 3529 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3530 return res;
3531}
3532
255e737e
JM		 3533static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3534{
b23aa676
SO		 3535 return auth_type <= NL80211_AUTHTYPE_MAX;
3536}
3537
3538static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3539{
3540 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3541 NL80211_WPA_VERSION_2));
3542}
3543
3544static bool nl80211_valid_akm_suite(u32 akm)
3545{
3546 return akm == WLAN_AKM_SUITE_8021X ||
3547 akm == WLAN_AKM_SUITE_PSK;
3548}
3549
3550static bool nl80211_valid_cipher_suite(u32 cipher)
3551{
3552 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3553 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3554 cipher == WLAN_CIPHER_SUITE_TKIP ||
3555 cipher == WLAN_CIPHER_SUITE_CCMP ||
3556 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3557}
3558
b23aa676 3559
636a5d36
JM		 3560static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3561{
4c476991
JB		 3562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3563 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3564 struct ieee80211_channel *chan;
3565 const u8 *bssid, *ssid, *ie = NULL;
3566 int err, ssid_len, ie_len = 0;
3567 enum nl80211_auth_type auth_type;
fffd0934 3568 struct key_parse key;
d5cdfacb 3569 bool local_state_change;
636a5d36 3570
f4a11bb0
JB		 3571 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3572 return -EINVAL;
3573
3574 if (!info->attrs[NL80211_ATTR_MAC])
3575 return -EINVAL;
3576
1778092e
JM		 3577 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3578 return -EINVAL;
3579
19957bb3
JB		 3580 if (!info->attrs[NL80211_ATTR_SSID])
3581 return -EINVAL;
3582
3583 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3584 return -EINVAL;
3585
fffd0934
JB		 3586 err = nl80211_parse_key(info, &key);
3587 if (err)
3588 return err;
3589
3590 if (key.idx >= 0) {
e31b8213
JB		 3591 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3592 return -EINVAL;
fffd0934
JB		 3593 if (!key.p.key || !key.p.key_len)
3594 return -EINVAL;
3595 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3596 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3597 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3598 key.p.key_len != WLAN_KEY_LEN_WEP104))
3599 return -EINVAL;
3600 if (key.idx > 4)
3601 return -EINVAL;
3602 } else {
3603 key.p.key_len = 0;
3604 key.p.key = NULL;
3605 }
3606
afea0b7a
JB		 3607 if (key.idx >= 0) {
3608 int i;
3609 bool ok = false;
3610 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3611 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3612 ok = true;
3613 break;
3614 }
3615 }
4c476991
JB		 3616 if (!ok)
3617 return -EINVAL;
afea0b7a
JB		 3618 }
3619
4c476991
JB		 3620 if (!rdev->ops->auth)
3621 return -EOPNOTSUPP;
636a5d36 3622
074ac8df 3623 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3624 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3625 return -EOPNOTSUPP;
eec60b03 3626
19957bb3 3627 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3628 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3629 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3630 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3631 return -EINVAL;
636a5d36 3632
19957bb3
JB		 3633 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3634 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3635
3636 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3637 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3638 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3639 }
3640
19957bb3 3641 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3642 if (!nl80211_valid_auth_type(auth_type))
3643 return -EINVAL;
636a5d36 3644
d5cdfacb
JM		 3645 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3646
4c476991
JB		 3647 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3648 ssid, ssid_len, ie, ie_len,
3649 key.p.key, key.p.key_len, key.idx,
3650 local_state_change);
636a5d36
JM		 3651}
3652
c0692b8f
JB		 3653static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3654 struct genl_info *info,
3dc27d25
JB		 3655 struct cfg80211_crypto_settings *settings,
3656 int cipher_limit)
b23aa676 3657{
c0b2bbd8
JB		 3658 memset(settings, 0, sizeof(*settings));
3659
b23aa676
SO		 3660 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3661
c0692b8f
JB		 3662 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3663 u16 proto;
3664 proto = nla_get_u16(
3665 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3666 settings->control_port_ethertype = cpu_to_be16(proto);
3667 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3668 proto != ETH_P_PAE)
3669 return -EINVAL;
3670 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3671 settings->control_port_no_encrypt = true;
3672 } else
3673 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3674
b23aa676
SO		 3675 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3676 void *data;
3677 int len, i;
3678
3679 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3680 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3681 settings->n_ciphers_pairwise = len / sizeof(u32);
3682
3683 if (len % sizeof(u32))
3684 return -EINVAL;
3685
3dc27d25 3686 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3687 return -EINVAL;
3688
3689 memcpy(settings->ciphers_pairwise, data, len);
3690
3691 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3692 if (!nl80211_valid_cipher_suite(
3693 settings->ciphers_pairwise[i]))
3694 return -EINVAL;
3695 }
3696
3697 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3698 settings->cipher_group =
3699 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3700 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3701 return -EINVAL;
3702 }
3703
3704 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3705 settings->wpa_versions =
3706 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3707 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3708 return -EINVAL;
3709 }
3710
3711 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3712 void *data;
3713 int len, i;
3714
3715 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3716 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3717 settings->n_akm_suites = len / sizeof(u32);
3718
3719 if (len % sizeof(u32))
3720 return -EINVAL;
3721
3722 memcpy(settings->akm_suites, data, len);
3723
3724 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3725 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3726 return -EINVAL;
3727 }
3728
3729 return 0;
3730}
3731
636a5d36
JM		 3732static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3733{
4c476991
JB		 3734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3735 struct net_device *dev = info->user_ptr[1];
19957bb3 3736 struct cfg80211_crypto_settings crypto;
f444de05 3737 struct ieee80211_channel *chan;
3e5d7649 3738 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3739 int err, ssid_len, ie_len = 0;
3740 bool use_mfp = false;
636a5d36 3741
f4a11bb0
JB		 3742 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3743 return -EINVAL;
3744
3745 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3746 !info->attrs[NL80211_ATTR_SSID] ||
3747 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3748 return -EINVAL;
3749
4c476991
JB		 3750 if (!rdev->ops->assoc)
3751 return -EOPNOTSUPP;
636a5d36 3752
074ac8df 3753 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3754 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3755 return -EOPNOTSUPP;
eec60b03 3756
19957bb3 3757 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3758
19957bb3
JB		 3759 chan = ieee80211_get_channel(&rdev->wiphy,
3760 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3761 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3762 return -EINVAL;
636a5d36 3763
19957bb3
JB		 3764 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3765 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3766
3767 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3768 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3769 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3770 }
3771
dc6382ce 3772 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3773 enum nl80211_mfp mfp =
dc6382ce 3774 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3775 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3776 use_mfp = true;
4c476991
JB		 3777 else if (mfp != NL80211_MFP_NO)
3778 return -EINVAL;
dc6382ce
JM		 3779 }
3780
3e5d7649
JB		 3781 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3782 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3783
c0692b8f 3784 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3785 if (!err)
3e5d7649
JB		 3786 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3787 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3788 &crypto);
636a5d36 3789
636a5d36
JM		 3790 return err;
3791}
3792
3793static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3794{
4c476991
JB		 3795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3796 struct net_device *dev = info->user_ptr[1];
19957bb3 3797 const u8 *ie = NULL, *bssid;
4c476991 3798 int ie_len = 0;
19957bb3 3799 u16 reason_code;
d5cdfacb 3800 bool local_state_change;
636a5d36 3801
f4a11bb0
JB		 3802 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3803 return -EINVAL;
3804
3805 if (!info->attrs[NL80211_ATTR_MAC])
3806 return -EINVAL;
3807
3808 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3809 return -EINVAL;
3810
4c476991
JB		 3811 if (!rdev->ops->deauth)
3812 return -EOPNOTSUPP;
636a5d36 3813
074ac8df 3814 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3815 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3816 return -EOPNOTSUPP;
eec60b03 3817
19957bb3 3818 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3819
19957bb3
JB		 3820 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3821 if (reason_code == 0) {
f4a11bb0 3822 /* Reason Code 0 is reserved */
4c476991 3823 return -EINVAL;
255e737e 3824 }
636a5d36
JM		 3825
3826 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3827 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3828 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3829 }
3830
d5cdfacb
JM		 3831 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3832
4c476991
JB		 3833 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3834 local_state_change);
636a5d36
JM		 3835}
3836
3837static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3838{
4c476991
JB		 3839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3840 struct net_device *dev = info->user_ptr[1];
19957bb3 3841 const u8 *ie = NULL, *bssid;
4c476991 3842 int ie_len = 0;
19957bb3 3843 u16 reason_code;
d5cdfacb 3844 bool local_state_change;
636a5d36 3845
f4a11bb0
JB		 3846 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3847 return -EINVAL;
3848
3849 if (!info->attrs[NL80211_ATTR_MAC])
3850 return -EINVAL;
3851
3852 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3853 return -EINVAL;
3854
4c476991
JB		 3855 if (!rdev->ops->disassoc)
3856 return -EOPNOTSUPP;
636a5d36 3857
074ac8df 3858 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3859 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3860 return -EOPNOTSUPP;
eec60b03 3861
19957bb3 3862 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3863
19957bb3
JB		 3864 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3865 if (reason_code == 0) {
f4a11bb0 3866 /* Reason Code 0 is reserved */
4c476991 3867 return -EINVAL;
255e737e 3868 }
636a5d36
JM		 3869
3870 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3871 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3872 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3873 }
3874
d5cdfacb
JM		 3875 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3876
4c476991
JB		 3877 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3878 local_state_change);
636a5d36
JM		 3879}
3880
dd5b4cc7
FF		 3881static bool
3882nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3883 int mcast_rate[IEEE80211_NUM_BANDS],
3884 int rateval)
3885{
3886 struct wiphy *wiphy = &rdev->wiphy;
3887 bool found = false;
3888 int band, i;
3889
3890 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3891 struct ieee80211_supported_band *sband;
3892
3893 sband = wiphy->bands[band];
3894 if (!sband)
3895 continue;
3896
3897 for (i = 0; i < sband->n_bitrates; i++) {
3898 if (sband->bitrates[i].bitrate == rateval) {
3899 mcast_rate[band] = i + 1;
3900 found = true;
3901 break;
3902 }
3903 }
3904 }
3905
3906 return found;
3907}
3908
04a773ad
JB		 3909static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3910{
4c476991
JB		 3911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3912 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3913 struct cfg80211_ibss_params ibss;
3914 struct wiphy *wiphy;
fffd0934 3915 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3916 int err;
3917
8e30bc55
JB		 3918 memset(&ibss, 0, sizeof(ibss));
3919
04a773ad
JB		 3920 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3921 return -EINVAL;
3922
3923 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3924 !info->attrs[NL80211_ATTR_SSID] ||
3925 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3926 return -EINVAL;
3927
8e30bc55
JB		 3928 ibss.beacon_interval = 100;
3929
3930 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3931 ibss.beacon_interval =
3932 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3933 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3934 return -EINVAL;
3935 }
3936
4c476991
JB		 3937 if (!rdev->ops->join_ibss)
3938 return -EOPNOTSUPP;
04a773ad 3939
4c476991
JB		 3940 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3941 return -EOPNOTSUPP;
04a773ad 3942
79c97e97 3943 wiphy = &rdev->wiphy;
04a773ad
JB		 3944
3945 if (info->attrs[NL80211_ATTR_MAC])
3946 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3947 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3948 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3949
3950 if (info->attrs[NL80211_ATTR_IE]) {
3951 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3952 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3953 }
3954
3955 ibss.channel = ieee80211_get_channel(wiphy,
3956 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3957 if (!ibss.channel ||
3958 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3959 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3960 return -EINVAL;
04a773ad
JB		 3961
3962 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3963 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3964
fbd2c8dc
TP		 3965 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3966 u8 *rates =
3967 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3968 int n_rates =
3969 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3970 struct ieee80211_supported_band *sband =
3971 wiphy->bands[ibss.channel->band];
3972 int i, j;
3973
4c476991
JB		 3974 if (n_rates == 0)
3975 return -EINVAL;
fbd2c8dc
TP		 3976
3977 for (i = 0; i < n_rates; i++) {
3978 int rate = (rates[i] & 0x7f) * 5;
3979 bool found = false;
3980
3981 for (j = 0; j < sband->n_bitrates; j++) {
3982 if (sband->bitrates[j].bitrate == rate) {
3983 found = true;
3984 ibss.basic_rates |= BIT(j);
3985 break;
3986 }
3987 }
4c476991
JB		 3988 if (!found)
3989 return -EINVAL;
fbd2c8dc 3990 }
fbd2c8dc 3991 }
dd5b4cc7
FF		 3992
3993 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3994 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3995 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3996 return -EINVAL;
fbd2c8dc 3997
4c476991
JB		 3998 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3999 connkeys = nl80211_parse_connkeys(rdev,
4000 info->attrs[NL80211_ATTR_KEYS]);
4001 if (IS_ERR(connkeys))
4002 return PTR_ERR(connkeys);
4003 }
04a773ad 4004
4c476991 4005 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4006 if (err)
4007 kfree(connkeys);
04a773ad
JB		 4008 return err;
4009}
4010
4011static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4012{
4c476991
JB		 4013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4014 struct net_device *dev = info->user_ptr[1];
04a773ad 4015
4c476991
JB		 4016 if (!rdev->ops->leave_ibss)
4017 return -EOPNOTSUPP;
04a773ad 4018
4c476991
JB		 4019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4020 return -EOPNOTSUPP;
04a773ad 4021
4c476991 4022 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4023}
4024
aff89a9b
JB		 4025#ifdef CONFIG_NL80211_TESTMODE
4026static struct genl_multicast_group nl80211_testmode_mcgrp = {
4027 .name = "testmode",
4028};
4029
4030static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4031{
4c476991 4032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4033 int err;
4034
4035 if (!info->attrs[NL80211_ATTR_TESTDATA])
4036 return -EINVAL;
4037
aff89a9b
JB		 4038 err = -EOPNOTSUPP;
4039 if (rdev->ops->testmode_cmd) {
4040 rdev->testmode_info = info;
4041 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4042 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4043 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4044 rdev->testmode_info = NULL;
4045 }
4046
aff89a9b
JB		 4047 return err;
4048}
4049
4050static struct sk_buff *
4051__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4052 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4053{
4054 struct sk_buff *skb;
4055 void *hdr;
4056 struct nlattr *data;
4057
4058 skb = nlmsg_new(approxlen + 100, gfp);
4059 if (!skb)
4060 return NULL;
4061
4062 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4063 if (!hdr) {
4064 kfree_skb(skb);
4065 return NULL;
4066 }
4067
4068 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4069 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4070
4071 ((void **)skb->cb)[0] = rdev;
4072 ((void **)skb->cb)[1] = hdr;
4073 ((void **)skb->cb)[2] = data;
4074
4075 return skb;
4076
4077 nla_put_failure:
4078 kfree_skb(skb);
4079 return NULL;
4080}
4081
4082struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4083 int approxlen)
4084{
4085 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4086
4087 if (WARN_ON(!rdev->testmode_info))
4088 return NULL;
4089
4090 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4091 rdev->testmode_info->snd_pid,
4092 rdev->testmode_info->snd_seq,
4093 GFP_KERNEL);
4094}
4095EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4096
4097int cfg80211_testmode_reply(struct sk_buff *skb)
4098{
4099 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4100 void *hdr = ((void **)skb->cb)[1];
4101 struct nlattr *data = ((void **)skb->cb)[2];
4102
4103 if (WARN_ON(!rdev->testmode_info)) {
4104 kfree_skb(skb);
4105 return -EINVAL;
4106 }
4107
4108 nla_nest_end(skb, data);
4109 genlmsg_end(skb, hdr);
4110 return genlmsg_reply(skb, rdev->testmode_info);
4111}
4112EXPORT_SYMBOL(cfg80211_testmode_reply);
4113
4114struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4115 int approxlen, gfp_t gfp)
4116{
4117 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4118
4119 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4120}
4121EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4122
4123void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4124{
4125 void *hdr = ((void **)skb->cb)[1];
4126 struct nlattr *data = ((void **)skb->cb)[2];
4127
4128 nla_nest_end(skb, data);
4129 genlmsg_end(skb, hdr);
4130 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4131}
4132EXPORT_SYMBOL(cfg80211_testmode_event);
4133#endif
4134
b23aa676
SO		 4135static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4136{
4c476991
JB		 4137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4138 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4139 struct cfg80211_connect_params connect;
4140 struct wiphy *wiphy;
fffd0934 4141 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4142 int err;
4143
4144 memset(&connect, 0, sizeof(connect));
4145
4146 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4147 return -EINVAL;
4148
4149 if (!info->attrs[NL80211_ATTR_SSID] ||
4150 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4151 return -EINVAL;
4152
4153 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4154 connect.auth_type =
4155 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4156 if (!nl80211_valid_auth_type(connect.auth_type))
4157 return -EINVAL;
4158 } else
4159 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4160
4161 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4162
c0692b8f 4163 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4164 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4165 if (err)
4166 return err;
b23aa676 4167
074ac8df 4168 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4169 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4170 return -EOPNOTSUPP;
b23aa676 4171
79c97e97 4172 wiphy = &rdev->wiphy;
b23aa676 4173
b23aa676
SO		 4174 if (info->attrs[NL80211_ATTR_MAC])
4175 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4176 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4177 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4178
4179 if (info->attrs[NL80211_ATTR_IE]) {
4180 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4181 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4182 }
4183
4184 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4185 connect.channel =
4186 ieee80211_get_channel(wiphy,
4187 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4188 if (!connect.channel ||
4c476991
JB		 4189 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4190 return -EINVAL;
b23aa676
SO		 4191 }
4192
fffd0934
JB		 4193 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4194 connkeys = nl80211_parse_connkeys(rdev,
4195 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4196 if (IS_ERR(connkeys))
4197 return PTR_ERR(connkeys);
fffd0934
JB		 4198 }
4199
4200 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4201 if (err)
4202 kfree(connkeys);
b23aa676
SO		 4203 return err;
4204}
4205
4206static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4207{
4c476991
JB		 4208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4209 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4210 u16 reason;
4211
4212 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4213 reason = WLAN_REASON_DEAUTH_LEAVING;
4214 else
4215 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4216
4217 if (reason == 0)
4218 return -EINVAL;
4219
074ac8df 4220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4222 return -EOPNOTSUPP;
b23aa676 4223
4c476991 4224 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4225}
4226
463d0183
JB		 4227static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4228{
4c476991 4229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4230 struct net *net;
4231 int err;
4232 u32 pid;
4233
4234 if (!info->attrs[NL80211_ATTR_PID])
4235 return -EINVAL;
4236
4237 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4238
463d0183 4239 net = get_net_ns_by_pid(pid);
4c476991
JB		 4240 if (IS_ERR(net))
4241 return PTR_ERR(net);
463d0183
JB		 4242
4243 err = 0;
4244
4245 /* check if anything to do */
4c476991
JB		 4246 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4247 err = cfg80211_switch_netns(rdev, net);
463d0183 4248
463d0183 4249 put_net(net);
463d0183
JB		 4250 return err;
4251}
4252
67fbb16b
SO		 4253static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4254{
4c476991 4255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4256 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4257 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4258 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4259 struct cfg80211_pmksa pmksa;
4260
4261 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4262
4263 if (!info->attrs[NL80211_ATTR_MAC])
4264 return -EINVAL;
4265
4266 if (!info->attrs[NL80211_ATTR_PMKID])
4267 return -EINVAL;
4268
67fbb16b
SO		 4269 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4270 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4271
074ac8df 4272 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4274 return -EOPNOTSUPP;
67fbb16b
SO		 4275
4276 switch (info->genlhdr->cmd) {
4277 case NL80211_CMD_SET_PMKSA:
4278 rdev_ops = rdev->ops->set_pmksa;
4279 break;
4280 case NL80211_CMD_DEL_PMKSA:
4281 rdev_ops = rdev->ops->del_pmksa;
4282 break;
4283 default:
4284 WARN_ON(1);
4285 break;
4286 }
4287
4c476991
JB		 4288 if (!rdev_ops)
4289 return -EOPNOTSUPP;
67fbb16b 4290
4c476991 4291 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4292}
4293
4294static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4295{
4c476991
JB		 4296 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4297 struct net_device *dev = info->user_ptr[1];
67fbb16b 4298
074ac8df 4299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4300 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4301 return -EOPNOTSUPP;
67fbb16b 4302
4c476991
JB		 4303 if (!rdev->ops->flush_pmksa)
4304 return -EOPNOTSUPP;
67fbb16b 4305
4c476991 4306 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4307}
4308
9588bbd5
JM		 4309static int nl80211_remain_on_channel(struct sk_buff *skb,
4310 struct genl_info *info)
4311{
4c476991
JB		 4312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4313 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4314 struct ieee80211_channel *chan;
4315 struct sk_buff *msg;
4316 void *hdr;
4317 u64 cookie;
4318 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4319 u32 freq, duration;
4320 int err;
4321
4322 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4323 !info->attrs[NL80211_ATTR_DURATION])
4324 return -EINVAL;
4325
4326 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4327
4328 /*
4329 * We should be on that channel for at least one jiffie,
4330 * and more than 5 seconds seems excessive.
4331 */
a293911d
JB		 4332 if (!duration || !msecs_to_jiffies(duration) ||
4333 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4334 return -EINVAL;
4335
4c476991
JB		 4336 if (!rdev->ops->remain_on_channel)
4337 return -EOPNOTSUPP;
9588bbd5 4338
9588bbd5
JM		 4339 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4340 channel_type = nla_get_u32(
4341 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4342 if (channel_type != NL80211_CHAN_NO_HT &&
4343 channel_type != NL80211_CHAN_HT20 &&
4344 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4345 channel_type != NL80211_CHAN_HT40MINUS)
4346 return -EINVAL;
9588bbd5
JM		 4347 }
4348
4349 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4350 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4351 if (chan == NULL)
4352 return -EINVAL;
9588bbd5
JM		 4353
4354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4355 if (!msg)
4356 return -ENOMEM;
9588bbd5
JM		 4357
4358 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4359 NL80211_CMD_REMAIN_ON_CHANNEL);
4360
4361 if (IS_ERR(hdr)) {
4362 err = PTR_ERR(hdr);
4363 goto free_msg;
4364 }
4365
4366 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4367 channel_type, duration, &cookie);
4368
4369 if (err)
4370 goto free_msg;
4371
4372 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4373
4374 genlmsg_end(msg, hdr);
4c476991
JB		 4375
4376 return genlmsg_reply(msg, info);
9588bbd5
JM		 4377
4378 nla_put_failure:
4379 err = -ENOBUFS;
4380 free_msg:
4381 nlmsg_free(msg);
9588bbd5
JM		 4382 return err;
4383}
4384
4385static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4386 struct genl_info *info)
4387{
4c476991
JB		 4388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4389 struct net_device *dev = info->user_ptr[1];
9588bbd5 4390 u64 cookie;
9588bbd5
JM		 4391
4392 if (!info->attrs[NL80211_ATTR_COOKIE])
4393 return -EINVAL;
4394
4c476991
JB		 4395 if (!rdev->ops->cancel_remain_on_channel)
4396 return -EOPNOTSUPP;
9588bbd5 4397
9588bbd5
JM		 4398 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4399
4c476991 4400 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4401}
4402
13ae75b1
JM		 4403static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4404 u8 *rates, u8 rates_len)
4405{
4406 u8 i;
4407 u32 mask = 0;
4408
4409 for (i = 0; i < rates_len; i++) {
4410 int rate = (rates[i] & 0x7f) * 5;
4411 int ridx;
4412 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4413 struct ieee80211_rate *srate =
4414 &sband->bitrates[ridx];
4415 if (rate == srate->bitrate) {
4416 mask |= 1 << ridx;
4417 break;
4418 }
4419 }
4420 if (ridx == sband->n_bitrates)
4421 return 0; /* rate not found */
4422 }
4423
4424 return mask;
4425}
4426
b54452b0 4427static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4428 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4429 .len = NL80211_MAX_SUPP_RATES },
4430};
4431
4432static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4433 struct genl_info *info)
4434{
4435 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4437 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4438 int rem, i;
4439 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4440 struct nlattr *tx_rates;
4441 struct ieee80211_supported_band *sband;
4442
4443 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4444 return -EINVAL;
4445
4c476991
JB		 4446 if (!rdev->ops->set_bitrate_mask)
4447 return -EOPNOTSUPP;
13ae75b1
JM		 4448
4449 memset(&mask, 0, sizeof(mask));
4450 /* Default to all rates enabled */
4451 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4452 sband = rdev->wiphy.bands[i];
4453 mask.control[i].legacy =
4454 sband ? (1 << sband->n_bitrates) - 1 : 0;
4455 }
4456
4457 /*
4458 * The nested attribute uses enum nl80211_band as the index. This maps
4459 * directly to the enum ieee80211_band values used in cfg80211.
4460 */
4461 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4462 {
4463 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4464 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4465 return -EINVAL;
13ae75b1 4466 sband = rdev->wiphy.bands[band];
4c476991
JB		 4467 if (sband == NULL)
4468 return -EINVAL;
13ae75b1
JM		 4469 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4470 nla_len(tx_rates), nl80211_txattr_policy);
4471 if (tb[NL80211_TXRATE_LEGACY]) {
4472 mask.control[band].legacy = rateset_to_mask(
4473 sband,
4474 nla_data(tb[NL80211_TXRATE_LEGACY]),
4475 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4476 if (mask.control[band].legacy == 0)
4477 return -EINVAL;
13ae75b1
JM		 4478 }
4479 }
4480
4c476991 4481 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4482}
4483
2e161f78 4484static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4485{
4c476991
JB		 4486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4487 struct net_device *dev = info->user_ptr[1];
2e161f78 4488 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4489
4490 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4491 return -EINVAL;
4492
2e161f78
JB		 4493 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4494 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4495
9d38d85d 4496 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4498 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4499 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4500 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4501 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4502 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4503 return -EOPNOTSUPP;
026331c4
JM		 4504
4505 /* not much point in registering if we can't reply */
4c476991
JB		 4506 if (!rdev->ops->mgmt_tx)
4507 return -EOPNOTSUPP;
026331c4 4508
4c476991 4509 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4510 frame_type,
026331c4
JM		 4511 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4512 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4513}
4514
2e161f78 4515static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4516{
4c476991
JB		 4517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4518 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4519 struct ieee80211_channel *chan;
4520 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4521 bool channel_type_valid = false;
026331c4
JM		 4522 u32 freq;
4523 int err;
4524 void *hdr;
4525 u64 cookie;
4526 struct sk_buff *msg;
f7ca38df
JB		 4527 unsigned int wait = 0;
4528 bool offchan;
026331c4
JM		 4529
4530 if (!info->attrs[NL80211_ATTR_FRAME] ||
4531 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4532 return -EINVAL;
4533
4c476991
JB		 4534 if (!rdev->ops->mgmt_tx)
4535 return -EOPNOTSUPP;
026331c4 4536
9d38d85d 4537 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4538 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4539 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4541 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4543 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4544 return -EOPNOTSUPP;
026331c4 4545
f7ca38df
JB		 4546 if (info->attrs[NL80211_ATTR_DURATION]) {
4547 if (!rdev->ops->mgmt_tx_cancel_wait)
4548 return -EINVAL;
4549 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4550 }
4551
026331c4
JM		 4552 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4553 channel_type = nla_get_u32(
4554 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4555 if (channel_type != NL80211_CHAN_NO_HT &&
4556 channel_type != NL80211_CHAN_HT20 &&
4557 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4558 channel_type != NL80211_CHAN_HT40MINUS)
4559 return -EINVAL;
252aa631 4560 channel_type_valid = true;
026331c4
JM		 4561 }
4562
f7ca38df
JB		 4563 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4564
026331c4
JM		 4565 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4566 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4567 if (chan == NULL)
4568 return -EINVAL;
026331c4
JM		 4569
4570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4571 if (!msg)
4572 return -ENOMEM;
026331c4
JM		 4573
4574 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4575 NL80211_CMD_FRAME);
026331c4
JM		 4576
4577 if (IS_ERR(hdr)) {
4578 err = PTR_ERR(hdr);
4579 goto free_msg;
4580 }
f7ca38df
JB		 4581 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4582 channel_type_valid, wait,
2e161f78
JB		 4583 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4584 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4585 &cookie);
026331c4
JM		 4586 if (err)
4587 goto free_msg;
4588
4589 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4590
4591 genlmsg_end(msg, hdr);
4c476991 4592 return genlmsg_reply(msg, info);
026331c4
JM		 4593
4594 nla_put_failure:
4595 err = -ENOBUFS;
4596 free_msg:
4597 nlmsg_free(msg);
026331c4
JM		 4598 return err;
4599}
4600
f7ca38df
JB		 4601static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4602{
4603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4604 struct net_device *dev = info->user_ptr[1];
4605 u64 cookie;
4606
4607 if (!info->attrs[NL80211_ATTR_COOKIE])
4608 return -EINVAL;
4609
4610 if (!rdev->ops->mgmt_tx_cancel_wait)
4611 return -EOPNOTSUPP;
4612
4613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4614 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4615 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4616 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4618 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4619 return -EOPNOTSUPP;
4620
4621 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4622
4623 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4624}
4625
ffb9eb3d
KV		 4626static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4627{
4c476991 4628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4629 struct wireless_dev *wdev;
4c476991 4630 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4631 u8 ps_state;
4632 bool state;
4633 int err;
4634
4c476991
JB		 4635 if (!info->attrs[NL80211_ATTR_PS_STATE])
4636 return -EINVAL;
ffb9eb3d
KV		 4637
4638 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4639
4c476991
JB		 4640 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4641 return -EINVAL;
ffb9eb3d
KV		 4642
4643 wdev = dev->ieee80211_ptr;
4644
4c476991
JB		 4645 if (!rdev->ops->set_power_mgmt)
4646 return -EOPNOTSUPP;
ffb9eb3d
KV		 4647
4648 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4649
4650 if (state == wdev->ps)
4c476991 4651 return 0;
ffb9eb3d 4652
4c476991
JB		 4653 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4654 wdev->ps_timeout);
4655 if (!err)
4656 wdev->ps = state;
ffb9eb3d
KV		 4657 return err;
4658}
4659
4660static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4661{
4c476991 4662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4663 enum nl80211_ps_state ps_state;
4664 struct wireless_dev *wdev;
4c476991 4665 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4666 struct sk_buff *msg;
4667 void *hdr;
4668 int err;
4669
ffb9eb3d
KV		 4670 wdev = dev->ieee80211_ptr;
4671
4c476991
JB		 4672 if (!rdev->ops->set_power_mgmt)
4673 return -EOPNOTSUPP;
ffb9eb3d
KV		 4674
4675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4676 if (!msg)
4677 return -ENOMEM;
ffb9eb3d
KV		 4678
4679 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4680 NL80211_CMD_GET_POWER_SAVE);
4681 if (!hdr) {
4c476991 4682 err = -ENOBUFS;
ffb9eb3d
KV		 4683 goto free_msg;
4684 }
4685
4686 if (wdev->ps)
4687 ps_state = NL80211_PS_ENABLED;
4688 else
4689 ps_state = NL80211_PS_DISABLED;
4690
4691 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4692
4693 genlmsg_end(msg, hdr);
4c476991 4694 return genlmsg_reply(msg, info);
ffb9eb3d 4695
4c476991 4696 nla_put_failure:
ffb9eb3d 4697 err = -ENOBUFS;
4c476991 4698 free_msg:
ffb9eb3d 4699 nlmsg_free(msg);
ffb9eb3d
KV		 4700 return err;
4701}
4702
d6dc1a38
JO		 4703static struct nla_policy
4704nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4705 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4706 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4707 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4708};
4709
4710static int nl80211_set_cqm_rssi(struct genl_info *info,
4711 s32 threshold, u32 hysteresis)
4712{
4c476991 4713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4714 struct wireless_dev *wdev;
4c476991 4715 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4716
4717 if (threshold > 0)
4718 return -EINVAL;
4719
d6dc1a38
JO		 4720 wdev = dev->ieee80211_ptr;
4721
4c476991
JB		 4722 if (!rdev->ops->set_cqm_rssi_config)
4723 return -EOPNOTSUPP;
d6dc1a38 4724
074ac8df 4725 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4726 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4727 return -EOPNOTSUPP;
d6dc1a38 4728
4c476991
JB		 4729 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4730 threshold, hysteresis);
d6dc1a38
JO		 4731}
4732
4733static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4734{
4735 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4736 struct nlattr *cqm;
4737 int err;
4738
4739 cqm = info->attrs[NL80211_ATTR_CQM];
4740 if (!cqm) {
4741 err = -EINVAL;
4742 goto out;
4743 }
4744
4745 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4746 nl80211_attr_cqm_policy);
4747 if (err)
4748 goto out;
4749
4750 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4751 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4752 s32 threshold;
4753 u32 hysteresis;
4754 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4755 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4756 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4757 } else
4758 err = -EINVAL;
4759
4760out:
4761 return err;
4762}
4763
29cbe68c
JB		 4764static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
4765{
4766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4767 struct net_device *dev = info->user_ptr[1];
4768 struct mesh_config cfg;
c80d545d 4769 struct mesh_setup setup;
29cbe68c
JB		 4770 int err;
4771
4772 /* start with default */
4773 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 4774 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 4775
24bdd9f4 4776 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 4777 /* and parse parameters if given */
24bdd9f4 4778 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 4779 if (err)
4780 return err;
4781 }
4782
4783 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
4784 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
4785 return -EINVAL;
4786
c80d545d
JC		 4787 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
4788 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
4789
4790 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
4791 /* parse additional setup parameters if given */
4792 err = nl80211_parse_mesh_setup(info, &setup);
4793 if (err)
4794 return err;
4795 }
4796
4797 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 4798}
4799
4800static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
4801{
4802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4803 struct net_device *dev = info->user_ptr[1];
4804
4805 return cfg80211_leave_mesh(rdev, dev);
4806}
4807
4c476991
JB		 4808#define NL80211_FLAG_NEED_WIPHY 0x01
4809#define NL80211_FLAG_NEED_NETDEV 0x02
4810#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4811#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4812#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4813 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4814
4815static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4816 struct genl_info *info)
4817{
4818 struct cfg80211_registered_device *rdev;
4819 struct net_device *dev;
4820 int err;
4821 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4822
4823 if (rtnl)
4824 rtnl_lock();
4825
4826 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4827 rdev = cfg80211_get_dev_from_info(info);
4828 if (IS_ERR(rdev)) {
4829 if (rtnl)
4830 rtnl_unlock();
4831 return PTR_ERR(rdev);
4832 }
4833 info->user_ptr[0] = rdev;
4834 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4835 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4836 if (err) {
4837 if (rtnl)
4838 rtnl_unlock();
4839 return err;
4840 }
41265714
JB		 4841 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4842 !netif_running(dev)) {
d537f5fd
JB		 4843 cfg80211_unlock_rdev(rdev);
4844 dev_put(dev);
41265714
JB		 4845 if (rtnl)
4846 rtnl_unlock();
4847 return -ENETDOWN;
4848 }
4c476991
JB		 4849 info->user_ptr[0] = rdev;
4850 info->user_ptr[1] = dev;
4851 }
4852
4853 return 0;
4854}
4855
4856static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4857 struct genl_info *info)
4858{
4859 if (info->user_ptr[0])
4860 cfg80211_unlock_rdev(info->user_ptr[0]);
4861 if (info->user_ptr[1])
4862 dev_put(info->user_ptr[1]);
4863 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4864 rtnl_unlock();
4865}
4866
55682965
JB		 4867static struct genl_ops nl80211_ops[] = {
4868 {
4869 .cmd = NL80211_CMD_GET_WIPHY,
4870 .doit = nl80211_get_wiphy,
4871 .dumpit = nl80211_dump_wiphy,
4872 .policy = nl80211_policy,
4873 /* can be retrieved by unprivileged users */
4c476991 4874 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4875 },
4876 {
4877 .cmd = NL80211_CMD_SET_WIPHY,
4878 .doit = nl80211_set_wiphy,
4879 .policy = nl80211_policy,
4880 .flags = GENL_ADMIN_PERM,
4c476991 4881 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4882 },
4883 {
4884 .cmd = NL80211_CMD_GET_INTERFACE,
4885 .doit = nl80211_get_interface,
4886 .dumpit = nl80211_dump_interface,
4887 .policy = nl80211_policy,
4888 /* can be retrieved by unprivileged users */
4c476991 4889 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4890 },
4891 {
4892 .cmd = NL80211_CMD_SET_INTERFACE,
4893 .doit = nl80211_set_interface,
4894 .policy = nl80211_policy,
4895 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4896 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4897 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4898 },
4899 {
4900 .cmd = NL80211_CMD_NEW_INTERFACE,
4901 .doit = nl80211_new_interface,
4902 .policy = nl80211_policy,
4903 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4904 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4905 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4906 },
4907 {
4908 .cmd = NL80211_CMD_DEL_INTERFACE,
4909 .doit = nl80211_del_interface,
4910 .policy = nl80211_policy,
41ade00f 4911 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4912 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4913 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4914 },
4915 {
4916 .cmd = NL80211_CMD_GET_KEY,
4917 .doit = nl80211_get_key,
4918 .policy = nl80211_policy,
4919 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4920 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4921 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4922 },
4923 {
4924 .cmd = NL80211_CMD_SET_KEY,
4925 .doit = nl80211_set_key,
4926 .policy = nl80211_policy,
4927 .flags = GENL_ADMIN_PERM,
41265714 4928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4929 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4930 },
4931 {
4932 .cmd = NL80211_CMD_NEW_KEY,
4933 .doit = nl80211_new_key,
4934 .policy = nl80211_policy,
4935 .flags = GENL_ADMIN_PERM,
41265714 4936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4937 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4938 },
4939 {
4940 .cmd = NL80211_CMD_DEL_KEY,
4941 .doit = nl80211_del_key,
4942 .policy = nl80211_policy,
55682965 4943 .flags = GENL_ADMIN_PERM,
41265714 4944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4945 NL80211_FLAG_NEED_RTNL,
55682965 4946 },
ed1b6cc7
JB		 4947 {
4948 .cmd = NL80211_CMD_SET_BEACON,
4949 .policy = nl80211_policy,
4950 .flags = GENL_ADMIN_PERM,
4951 .doit = nl80211_addset_beacon,
4c476991
JB		 4952 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4953 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4954 },
4955 {
4956 .cmd = NL80211_CMD_NEW_BEACON,
4957 .policy = nl80211_policy,
4958 .flags = GENL_ADMIN_PERM,
4959 .doit = nl80211_addset_beacon,
4c476991
JB		 4960 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4961 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4962 },
4963 {
4964 .cmd = NL80211_CMD_DEL_BEACON,
4965 .policy = nl80211_policy,
4966 .flags = GENL_ADMIN_PERM,
4967 .doit = nl80211_del_beacon,
4c476991
JB		 4968 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4969 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4970 },
5727ef1b
JB		 4971 {
4972 .cmd = NL80211_CMD_GET_STATION,
4973 .doit = nl80211_get_station,
2ec600d6 4974 .dumpit = nl80211_dump_station,
5727ef1b 4975 .policy = nl80211_policy,
4c476991
JB		 4976 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4977 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4978 },
4979 {
4980 .cmd = NL80211_CMD_SET_STATION,
4981 .doit = nl80211_set_station,
4982 .policy = nl80211_policy,
4983 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4984 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4985 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4986 },
4987 {
4988 .cmd = NL80211_CMD_NEW_STATION,
4989 .doit = nl80211_new_station,
4990 .policy = nl80211_policy,
4991 .flags = GENL_ADMIN_PERM,
41265714 4992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4993 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4994 },
4995 {
4996 .cmd = NL80211_CMD_DEL_STATION,
4997 .doit = nl80211_del_station,
4998 .policy = nl80211_policy,
2ec600d6 4999 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5000 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5001 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5002 },
5003 {
5004 .cmd = NL80211_CMD_GET_MPATH,
5005 .doit = nl80211_get_mpath,
5006 .dumpit = nl80211_dump_mpath,
5007 .policy = nl80211_policy,
5008 .flags = GENL_ADMIN_PERM,
41265714 5009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5010 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5011 },
5012 {
5013 .cmd = NL80211_CMD_SET_MPATH,
5014 .doit = nl80211_set_mpath,
5015 .policy = nl80211_policy,
5016 .flags = GENL_ADMIN_PERM,
41265714 5017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5018 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5019 },
5020 {
5021 .cmd = NL80211_CMD_NEW_MPATH,
5022 .doit = nl80211_new_mpath,
5023 .policy = nl80211_policy,
5024 .flags = GENL_ADMIN_PERM,
41265714 5025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5026 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5027 },
5028 {
5029 .cmd = NL80211_CMD_DEL_MPATH,
5030 .doit = nl80211_del_mpath,
5031 .policy = nl80211_policy,
9f1ba906 5032 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5033 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5034 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5035 },
5036 {
5037 .cmd = NL80211_CMD_SET_BSS,
5038 .doit = nl80211_set_bss,
5039 .policy = nl80211_policy,
b2e1b302 5040 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5041 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5042 NL80211_FLAG_NEED_RTNL,
b2e1b302 5043 },
f130347c
LR		 5044 {
5045 .cmd = NL80211_CMD_GET_REG,
5046 .doit = nl80211_get_reg,
5047 .policy = nl80211_policy,
5048 /* can be retrieved by unprivileged users */
5049 },
b2e1b302
LR		 5050 {
5051 .cmd = NL80211_CMD_SET_REG,
5052 .doit = nl80211_set_reg,
5053 .policy = nl80211_policy,
5054 .flags = GENL_ADMIN_PERM,
5055 },
5056 {
5057 .cmd = NL80211_CMD_REQ_SET_REG,
5058 .doit = nl80211_req_set_reg,
5059 .policy = nl80211_policy,
93da9cc1 5060 .flags = GENL_ADMIN_PERM,
5061 },
5062 {
24bdd9f4
JC		 5063 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5064 .doit = nl80211_get_mesh_config,
93da9cc1 5065 .policy = nl80211_policy,
5066 /* can be retrieved by unprivileged users */
4c476991
JB		 5067 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5068 NL80211_FLAG_NEED_RTNL,
93da9cc1 5069 },
5070 {
24bdd9f4
JC		 5071 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5072 .doit = nl80211_update_mesh_config,
93da9cc1 5073 .policy = nl80211_policy,
9aed3cc1 5074 .flags = GENL_ADMIN_PERM,
29cbe68c 5075 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5076 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5077 },
2a519311
JB		 5078 {
5079 .cmd = NL80211_CMD_TRIGGER_SCAN,
5080 .doit = nl80211_trigger_scan,
5081 .policy = nl80211_policy,
5082 .flags = GENL_ADMIN_PERM,
41265714 5083 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5084 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5085 },
5086 {
5087 .cmd = NL80211_CMD_GET_SCAN,
5088 .policy = nl80211_policy,
5089 .dumpit = nl80211_dump_scan,
5090 },
636a5d36
JM		 5091 {
5092 .cmd = NL80211_CMD_AUTHENTICATE,
5093 .doit = nl80211_authenticate,
5094 .policy = nl80211_policy,
5095 .flags = GENL_ADMIN_PERM,
41265714 5096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5097 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5098 },
5099 {
5100 .cmd = NL80211_CMD_ASSOCIATE,
5101 .doit = nl80211_associate,
5102 .policy = nl80211_policy,
5103 .flags = GENL_ADMIN_PERM,
41265714 5104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5105 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5106 },
5107 {
5108 .cmd = NL80211_CMD_DEAUTHENTICATE,
5109 .doit = nl80211_deauthenticate,
5110 .policy = nl80211_policy,
5111 .flags = GENL_ADMIN_PERM,
41265714 5112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5113 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5114 },
5115 {
5116 .cmd = NL80211_CMD_DISASSOCIATE,
5117 .doit = nl80211_disassociate,
5118 .policy = nl80211_policy,
5119 .flags = GENL_ADMIN_PERM,
41265714 5120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5121 NL80211_FLAG_NEED_RTNL,
636a5d36 5122 },
04a773ad
JB		 5123 {
5124 .cmd = NL80211_CMD_JOIN_IBSS,
5125 .doit = nl80211_join_ibss,
5126 .policy = nl80211_policy,
5127 .flags = GENL_ADMIN_PERM,
41265714 5128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5129 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5130 },
5131 {
5132 .cmd = NL80211_CMD_LEAVE_IBSS,
5133 .doit = nl80211_leave_ibss,
5134 .policy = nl80211_policy,
5135 .flags = GENL_ADMIN_PERM,
41265714 5136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5137 NL80211_FLAG_NEED_RTNL,
04a773ad 5138 },
aff89a9b
JB		 5139#ifdef CONFIG_NL80211_TESTMODE
5140 {
5141 .cmd = NL80211_CMD_TESTMODE,
5142 .doit = nl80211_testmode_do,
5143 .policy = nl80211_policy,
5144 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5145 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5146 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5147 },
5148#endif
b23aa676
SO		 5149 {
5150 .cmd = NL80211_CMD_CONNECT,
5151 .doit = nl80211_connect,
5152 .policy = nl80211_policy,
5153 .flags = GENL_ADMIN_PERM,
41265714 5154 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5155 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5156 },
5157 {
5158 .cmd = NL80211_CMD_DISCONNECT,
5159 .doit = nl80211_disconnect,
5160 .policy = nl80211_policy,
5161 .flags = GENL_ADMIN_PERM,
41265714 5162 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5163 NL80211_FLAG_NEED_RTNL,
b23aa676 5164 },
463d0183
JB		 5165 {
5166 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5167 .doit = nl80211_wiphy_netns,
5168 .policy = nl80211_policy,
5169 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5170 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5171 NL80211_FLAG_NEED_RTNL,
463d0183 5172 },
61fa713c
HS		 5173 {
5174 .cmd = NL80211_CMD_GET_SURVEY,
5175 .policy = nl80211_policy,
5176 .dumpit = nl80211_dump_survey,
5177 },
67fbb16b
SO		 5178 {
5179 .cmd = NL80211_CMD_SET_PMKSA,
5180 .doit = nl80211_setdel_pmksa,
5181 .policy = nl80211_policy,
5182 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5183 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5184 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5185 },
5186 {
5187 .cmd = NL80211_CMD_DEL_PMKSA,
5188 .doit = nl80211_setdel_pmksa,
5189 .policy = nl80211_policy,
5190 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5191 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5192 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5193 },
5194 {
5195 .cmd = NL80211_CMD_FLUSH_PMKSA,
5196 .doit = nl80211_flush_pmksa,
5197 .policy = nl80211_policy,
5198 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5199 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5200 NL80211_FLAG_NEED_RTNL,
67fbb16b 5201 },
9588bbd5
JM		 5202 {
5203 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5204 .doit = nl80211_remain_on_channel,
5205 .policy = nl80211_policy,
5206 .flags = GENL_ADMIN_PERM,
41265714 5207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5208 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5209 },
5210 {
5211 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5212 .doit = nl80211_cancel_remain_on_channel,
5213 .policy = nl80211_policy,
5214 .flags = GENL_ADMIN_PERM,
41265714 5215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5216 NL80211_FLAG_NEED_RTNL,
9588bbd5 5217 },
13ae75b1
JM		 5218 {
5219 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5220 .doit = nl80211_set_tx_bitrate_mask,
5221 .policy = nl80211_policy,
5222 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5223 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5224 NL80211_FLAG_NEED_RTNL,
13ae75b1 5225 },
026331c4 5226 {
2e161f78
JB		 5227 .cmd = NL80211_CMD_REGISTER_FRAME,
5228 .doit = nl80211_register_mgmt,
026331c4
JM		 5229 .policy = nl80211_policy,
5230 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5231 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5232 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5233 },
5234 {
2e161f78
JB		 5235 .cmd = NL80211_CMD_FRAME,
5236 .doit = nl80211_tx_mgmt,
026331c4 5237 .policy = nl80211_policy,
f7ca38df
JB		 5238 .flags = GENL_ADMIN_PERM,
5239 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5240 NL80211_FLAG_NEED_RTNL,
5241 },
5242 {
5243 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5244 .doit = nl80211_tx_mgmt_cancel_wait,
5245 .policy = nl80211_policy,
026331c4 5246 .flags = GENL_ADMIN_PERM,
41265714 5247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5248 NL80211_FLAG_NEED_RTNL,
026331c4 5249 },
ffb9eb3d
KV		 5250 {
5251 .cmd = NL80211_CMD_SET_POWER_SAVE,
5252 .doit = nl80211_set_power_save,
5253 .policy = nl80211_policy,
5254 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5255 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5256 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5257 },
5258 {
5259 .cmd = NL80211_CMD_GET_POWER_SAVE,
5260 .doit = nl80211_get_power_save,
5261 .policy = nl80211_policy,
5262 /* can be retrieved by unprivileged users */
4c476991
JB		 5263 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5264 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5265 },
d6dc1a38
JO		 5266 {
5267 .cmd = NL80211_CMD_SET_CQM,
5268 .doit = nl80211_set_cqm,
5269 .policy = nl80211_policy,
5270 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5271 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5272 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5273 },
f444de05
JB		 5274 {
5275 .cmd = NL80211_CMD_SET_CHANNEL,
5276 .doit = nl80211_set_channel,
5277 .policy = nl80211_policy,
5278 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5279 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5280 NL80211_FLAG_NEED_RTNL,
f444de05 5281 },
e8347eba
BJ		 5282 {
5283 .cmd = NL80211_CMD_SET_WDS_PEER,
5284 .doit = nl80211_set_wds_peer,
5285 .policy = nl80211_policy,
5286 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5287 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5288 NL80211_FLAG_NEED_RTNL,
e8347eba 5289 },
29cbe68c
JB		 5290 {
5291 .cmd = NL80211_CMD_JOIN_MESH,
5292 .doit = nl80211_join_mesh,
5293 .policy = nl80211_policy,
5294 .flags = GENL_ADMIN_PERM,
5295 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5296 NL80211_FLAG_NEED_RTNL,
5297 },
5298 {
5299 .cmd = NL80211_CMD_LEAVE_MESH,
5300 .doit = nl80211_leave_mesh,
5301 .policy = nl80211_policy,
5302 .flags = GENL_ADMIN_PERM,
5303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5304 NL80211_FLAG_NEED_RTNL,
5305 },
55682965 5306};
9588bbd5 5307
6039f6d2
JM		 5308static struct genl_multicast_group nl80211_mlme_mcgrp = {
5309 .name = "mlme",
5310};
55682965
JB		 5311
5312/* multicast groups */
5313static struct genl_multicast_group nl80211_config_mcgrp = {
5314 .name = "config",
5315};
2a519311
JB		 5316static struct genl_multicast_group nl80211_scan_mcgrp = {
5317 .name = "scan",
5318};
73d54c9e
LR		 5319static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5320 .name = "regulatory",
5321};
55682965
JB		 5322
5323/* notification functions */
5324
5325void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5326{
5327 struct sk_buff *msg;
5328
fd2120ca 5329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5330 if (!msg)
5331 return;
5332
5333 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5334 nlmsg_free(msg);
5335 return;
5336 }
5337
463d0183
JB		 5338 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5339 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5340}
5341
362a415d
JB		 5342static int nl80211_add_scan_req(struct sk_buff *msg,
5343 struct cfg80211_registered_device *rdev)
5344{
5345 struct cfg80211_scan_request *req = rdev->scan_req;
5346 struct nlattr *nest;
5347 int i;
5348
667503dd
JB		 5349 ASSERT_RDEV_LOCK(rdev);
5350
362a415d
JB		 5351 if (WARN_ON(!req))
5352 return 0;
5353
5354 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5355 if (!nest)
5356 goto nla_put_failure;
5357 for (i = 0; i < req->n_ssids; i++)
5358 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5359 nla_nest_end(msg, nest);
5360
5361 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5362 if (!nest)
5363 goto nla_put_failure;
5364 for (i = 0; i < req->n_channels; i++)
5365 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5366 nla_nest_end(msg, nest);
5367
5368 if (req->ie)
5369 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5370
5371 return 0;
5372 nla_put_failure:
5373 return -ENOBUFS;
5374}
5375
a538e2d5
JB		 5376static int nl80211_send_scan_msg(struct sk_buff *msg,
5377 struct cfg80211_registered_device *rdev,
5378 struct net_device *netdev,
5379 u32 pid, u32 seq, int flags,
5380 u32 cmd)
2a519311
JB		 5381{
5382 void *hdr;
5383
5384 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5385 if (!hdr)
5386 return -1;
5387
b5850a7a 5388 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5389 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5390
362a415d
JB		 5391 /* ignore errors and send incomplete event anyway */
5392 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5393
5394 return genlmsg_end(msg, hdr);
5395
5396 nla_put_failure:
5397 genlmsg_cancel(msg, hdr);
5398 return -EMSGSIZE;
5399}
5400
a538e2d5
JB		 5401void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5402 struct net_device *netdev)
5403{
5404 struct sk_buff *msg;
5405
5406 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5407 if (!msg)
5408 return;
5409
5410 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5411 NL80211_CMD_TRIGGER_SCAN) < 0) {
5412 nlmsg_free(msg);
5413 return;
5414 }
5415
463d0183
JB		 5416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5417 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5418}
5419
2a519311
JB		 5420void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5421 struct net_device *netdev)
5422{
5423 struct sk_buff *msg;
5424
fd2120ca 5425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5426 if (!msg)
5427 return;
5428
a538e2d5
JB		 5429 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5430 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5431 nlmsg_free(msg);
5432 return;
5433 }
5434
463d0183
JB		 5435 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5436 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5437}
5438
5439void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5440 struct net_device *netdev)
5441{
5442 struct sk_buff *msg;
5443
fd2120ca 5444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5445 if (!msg)
5446 return;
5447
a538e2d5
JB		 5448 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5449 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5450 nlmsg_free(msg);
5451 return;
5452 }
5453
463d0183
JB		 5454 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5455 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5456}
5457
73d54c9e
LR		 5458/*
5459 * This can happen on global regulatory changes or device specific settings
5460 * based on custom world regulatory domains.
5461 */
5462void nl80211_send_reg_change_event(struct regulatory_request *request)
5463{
5464 struct sk_buff *msg;
5465 void *hdr;
5466
fd2120ca 5467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5468 if (!msg)
5469 return;
5470
5471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5472 if (!hdr) {
5473 nlmsg_free(msg);
5474 return;
5475 }
5476
5477 /* Userspace can always count this one always being set */
5478 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5479
5480 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5481 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5482 NL80211_REGDOM_TYPE_WORLD);
5483 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5484 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5485 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5486 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5487 request->intersect)
5488 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5489 NL80211_REGDOM_TYPE_INTERSECTION);
5490 else {
5491 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5492 NL80211_REGDOM_TYPE_COUNTRY);
5493 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5494 }
5495
5496 if (wiphy_idx_valid(request->wiphy_idx))
5497 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5498
5499 if (genlmsg_end(msg, hdr) < 0) {
5500 nlmsg_free(msg);
5501 return;
5502 }
5503
bc43b28c 5504 rcu_read_lock();
463d0183 5505 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5506 GFP_ATOMIC);
5507 rcu_read_unlock();
73d54c9e
LR		 5508
5509 return;
5510
5511nla_put_failure:
5512 genlmsg_cancel(msg, hdr);
5513 nlmsg_free(msg);
5514}
5515
6039f6d2
JM		 5516static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5517 struct net_device *netdev,
5518 const u8 *buf, size_t len,
e6d6e342 5519 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5520{
5521 struct sk_buff *msg;
5522 void *hdr;
5523
e6d6e342 5524 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5525 if (!msg)
5526 return;
5527
5528 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5529 if (!hdr) {
5530 nlmsg_free(msg);
5531 return;
5532 }
5533
5534 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5535 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5536 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5537
5538 if (genlmsg_end(msg, hdr) < 0) {
5539 nlmsg_free(msg);
5540 return;
5541 }
5542
463d0183
JB		 5543 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5544 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5545 return;
5546
5547 nla_put_failure:
5548 genlmsg_cancel(msg, hdr);
5549 nlmsg_free(msg);
5550}
5551
5552void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5553 struct net_device *netdev, const u8 *buf,
5554 size_t len, gfp_t gfp)
6039f6d2
JM		 5555{
5556 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5557 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5558}
5559
5560void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5561 struct net_device *netdev, const u8 *buf,
e6d6e342 5562 size_t len, gfp_t gfp)
6039f6d2 5563{
e6d6e342
JB		 5564 nl80211_send_mlme_event(rdev, netdev, buf, len,
5565 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5566}
5567
53b46b84 5568void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5569 struct net_device *netdev, const u8 *buf,
5570 size_t len, gfp_t gfp)
6039f6d2
JM		 5571{
5572 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5573 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5574}
5575
53b46b84
JM		 5576void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5577 struct net_device *netdev, const u8 *buf,
e6d6e342 5578 size_t len, gfp_t gfp)
6039f6d2
JM		 5579{
5580 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5581 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5582}
5583
cf4e594e
JM		 5584void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
5585 struct net_device *netdev, const u8 *buf,
5586 size_t len, gfp_t gfp)
5587{
5588 nl80211_send_mlme_event(rdev, netdev, buf, len,
5589 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
5590}
5591
5592void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
5593 struct net_device *netdev, const u8 *buf,
5594 size_t len, gfp_t gfp)
5595{
5596 nl80211_send_mlme_event(rdev, netdev, buf, len,
5597 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
5598}
5599
1b06bb40
LR		 5600static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5601 struct net_device *netdev, int cmd,
e6d6e342 5602 const u8 *addr, gfp_t gfp)
1965c853
JM		 5603{
5604 struct sk_buff *msg;
5605 void *hdr;
5606
e6d6e342 5607 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5608 if (!msg)
5609 return;
5610
5611 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5612 if (!hdr) {
5613 nlmsg_free(msg);
5614 return;
5615 }
5616
5617 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5619 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5620 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5621
5622 if (genlmsg_end(msg, hdr) < 0) {
5623 nlmsg_free(msg);
5624 return;
5625 }
5626
463d0183
JB		 5627 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5628 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5629 return;
5630
5631 nla_put_failure:
5632 genlmsg_cancel(msg, hdr);
5633 nlmsg_free(msg);
5634}
5635
5636void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5637 struct net_device *netdev, const u8 *addr,
5638 gfp_t gfp)
1965c853
JM		 5639{
5640 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5641 addr, gfp);
1965c853
JM		 5642}
5643
5644void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5645 struct net_device *netdev, const u8 *addr,
5646 gfp_t gfp)
1965c853 5647{
e6d6e342
JB		 5648 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5649 addr, gfp);
1965c853
JM		 5650}
5651
b23aa676
SO		 5652void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5653 struct net_device *netdev, const u8 *bssid,
5654 const u8 *req_ie, size_t req_ie_len,
5655 const u8 *resp_ie, size_t resp_ie_len,
5656 u16 status, gfp_t gfp)
5657{
5658 struct sk_buff *msg;
5659 void *hdr;
5660
5661 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5662 if (!msg)
5663 return;
5664
5665 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5666 if (!hdr) {
5667 nlmsg_free(msg);
5668 return;
5669 }
5670
5671 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5672 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5673 if (bssid)
5674 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5675 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5676 if (req_ie)
5677 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5678 if (resp_ie)
5679 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5680
5681 if (genlmsg_end(msg, hdr) < 0) {
5682 nlmsg_free(msg);
5683 return;
5684 }
5685
463d0183
JB		 5686 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5687 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5688 return;
5689
5690 nla_put_failure:
5691 genlmsg_cancel(msg, hdr);
5692 nlmsg_free(msg);
5693
5694}
5695
5696void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5697 struct net_device *netdev, const u8 *bssid,
5698 const u8 *req_ie, size_t req_ie_len,
5699 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5700{
5701 struct sk_buff *msg;
5702 void *hdr;
5703
5704 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5705 if (!msg)
5706 return;
5707
5708 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5709 if (!hdr) {
5710 nlmsg_free(msg);
5711 return;
5712 }
5713
5714 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5716 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5717 if (req_ie)
5718 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5719 if (resp_ie)
5720 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5721
5722 if (genlmsg_end(msg, hdr) < 0) {
5723 nlmsg_free(msg);
5724 return;
5725 }
5726
463d0183
JB		 5727 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5728 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5729 return;
5730
5731 nla_put_failure:
5732 genlmsg_cancel(msg, hdr);
5733 nlmsg_free(msg);
5734
5735}
5736
5737void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5738 struct net_device *netdev, u16 reason,
667503dd 5739 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5740{
5741 struct sk_buff *msg;
5742 void *hdr;
5743
667503dd 5744 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5745 if (!msg)
5746 return;
5747
5748 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5749 if (!hdr) {
5750 nlmsg_free(msg);
5751 return;
5752 }
5753
5754 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5755 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5756 if (from_ap && reason)
5757 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5758 if (from_ap)
5759 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5760 if (ie)
5761 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5762
5763 if (genlmsg_end(msg, hdr) < 0) {
5764 nlmsg_free(msg);
5765 return;
5766 }
5767
463d0183
JB		 5768 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5769 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5770 return;
5771
5772 nla_put_failure:
5773 genlmsg_cancel(msg, hdr);
5774 nlmsg_free(msg);
5775
5776}
5777
04a773ad
JB		 5778void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5779 struct net_device *netdev, const u8 *bssid,
5780 gfp_t gfp)
5781{
5782 struct sk_buff *msg;
5783 void *hdr;
5784
fd2120ca 5785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5786 if (!msg)
5787 return;
5788
5789 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5790 if (!hdr) {
5791 nlmsg_free(msg);
5792 return;
5793 }
5794
5795 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5796 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5797 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5798
5799 if (genlmsg_end(msg, hdr) < 0) {
5800 nlmsg_free(msg);
5801 return;
5802 }
5803
463d0183
JB		 5804 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5805 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5806 return;
5807
5808 nla_put_failure:
5809 genlmsg_cancel(msg, hdr);
5810 nlmsg_free(msg);
5811}
5812
a3b8b056
JM		 5813void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5814 struct net_device *netdev, const u8 *addr,
5815 enum nl80211_key_type key_type, int key_id,
e6d6e342 5816 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5817{
5818 struct sk_buff *msg;
5819 void *hdr;
5820
e6d6e342 5821 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5822 if (!msg)
5823 return;
5824
5825 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5826 if (!hdr) {
5827 nlmsg_free(msg);
5828 return;
5829 }
5830
5831 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5832 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5833 if (addr)
5834 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5835 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5836 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5837 if (tsc)
5838 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5839
5840 if (genlmsg_end(msg, hdr) < 0) {
5841 nlmsg_free(msg);
5842 return;
5843 }
5844
463d0183
JB		 5845 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5846 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5847 return;
5848
5849 nla_put_failure:
5850 genlmsg_cancel(msg, hdr);
5851 nlmsg_free(msg);
5852}
5853
6bad8766
LR		 5854void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5855 struct ieee80211_channel *channel_before,
5856 struct ieee80211_channel *channel_after)
5857{
5858 struct sk_buff *msg;
5859 void *hdr;
5860 struct nlattr *nl_freq;
5861
fd2120ca 5862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5863 if (!msg)
5864 return;
5865
5866 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5867 if (!hdr) {
5868 nlmsg_free(msg);
5869 return;
5870 }
5871
5872 /*
5873 * Since we are applying the beacon hint to a wiphy we know its
5874 * wiphy_idx is valid
5875 */
5876 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5877
5878 /* Before */
5879 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5880 if (!nl_freq)
5881 goto nla_put_failure;
5882 if (nl80211_msg_put_channel(msg, channel_before))
5883 goto nla_put_failure;
5884 nla_nest_end(msg, nl_freq);
5885
5886 /* After */
5887 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5888 if (!nl_freq)
5889 goto nla_put_failure;
5890 if (nl80211_msg_put_channel(msg, channel_after))
5891 goto nla_put_failure;
5892 nla_nest_end(msg, nl_freq);
5893
5894 if (genlmsg_end(msg, hdr) < 0) {
5895 nlmsg_free(msg);
5896 return;
5897 }
5898
463d0183
JB		 5899 rcu_read_lock();
5900 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5901 GFP_ATOMIC);
5902 rcu_read_unlock();
6bad8766
LR		 5903
5904 return;
5905
5906nla_put_failure:
5907 genlmsg_cancel(msg, hdr);
5908 nlmsg_free(msg);
5909}
5910
9588bbd5
JM		 5911static void nl80211_send_remain_on_chan_event(
5912 int cmd, struct cfg80211_registered_device *rdev,
5913 struct net_device *netdev, u64 cookie,
5914 struct ieee80211_channel *chan,
5915 enum nl80211_channel_type channel_type,
5916 unsigned int duration, gfp_t gfp)
5917{
5918 struct sk_buff *msg;
5919 void *hdr;
5920
5921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5922 if (!msg)
5923 return;
5924
5925 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5926 if (!hdr) {
5927 nlmsg_free(msg);
5928 return;
5929 }
5930
5931 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5933 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5934 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5935 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5936
5937 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5938 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5939
5940 if (genlmsg_end(msg, hdr) < 0) {
5941 nlmsg_free(msg);
5942 return;
5943 }
5944
5945 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5946 nl80211_mlme_mcgrp.id, gfp);
5947 return;
5948
5949 nla_put_failure:
5950 genlmsg_cancel(msg, hdr);
5951 nlmsg_free(msg);
5952}
5953
5954void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5955 struct net_device *netdev, u64 cookie,
5956 struct ieee80211_channel *chan,
5957 enum nl80211_channel_type channel_type,
5958 unsigned int duration, gfp_t gfp)
5959{
5960 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5961 rdev, netdev, cookie, chan,
5962 channel_type, duration, gfp);
5963}
5964
5965void nl80211_send_remain_on_channel_cancel(
5966 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5967 u64 cookie, struct ieee80211_channel *chan,
5968 enum nl80211_channel_type channel_type, gfp_t gfp)
5969{
5970 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5971 rdev, netdev, cookie, chan,
5972 channel_type, 0, gfp);
5973}
5974
98b62183
JB		 5975void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5976 struct net_device *dev, const u8 *mac_addr,
5977 struct station_info *sinfo, gfp_t gfp)
5978{
5979 struct sk_buff *msg;
5980
5981 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5982 if (!msg)
5983 return;
5984
5985 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5986 nlmsg_free(msg);
5987 return;
5988 }
5989
5990 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5991 nl80211_mlme_mcgrp.id, gfp);
5992}
5993
ec15e68b
JM		 5994void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
5995 struct net_device *dev, const u8 *mac_addr,
5996 gfp_t gfp)
5997{
5998 struct sk_buff *msg;
5999 void *hdr;
6000
6001 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6002 if (!msg)
6003 return;
6004
6005 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6006 if (!hdr) {
6007 nlmsg_free(msg);
6008 return;
6009 }
6010
6011 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6012 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6013
6014 if (genlmsg_end(msg, hdr) < 0) {
6015 nlmsg_free(msg);
6016 return;
6017 }
6018
6019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6020 nl80211_mlme_mcgrp.id, gfp);
6021 return;
6022
6023 nla_put_failure:
6024 genlmsg_cancel(msg, hdr);
6025 nlmsg_free(msg);
6026}
6027
2e161f78
JB		 6028int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6029 struct net_device *netdev, u32 nlpid,
6030 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6031{
6032 struct sk_buff *msg;
6033 void *hdr;
6034 int err;
6035
6036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6037 if (!msg)
6038 return -ENOMEM;
6039
2e161f78 6040 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6041 if (!hdr) {
6042 nlmsg_free(msg);
6043 return -ENOMEM;
6044 }
6045
6046 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6047 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6048 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6049 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6050
6051 err = genlmsg_end(msg, hdr);
6052 if (err < 0) {
6053 nlmsg_free(msg);
6054 return err;
6055 }
6056
6057 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6058 if (err < 0)
6059 return err;
6060 return 0;
6061
6062 nla_put_failure:
6063 genlmsg_cancel(msg, hdr);
6064 nlmsg_free(msg);
6065 return -ENOBUFS;
6066}
6067
2e161f78
JB		 6068void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6069 struct net_device *netdev, u64 cookie,
6070 const u8 *buf, size_t len, bool ack,
6071 gfp_t gfp)
026331c4
JM		 6072{
6073 struct sk_buff *msg;
6074 void *hdr;
6075
6076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6077 if (!msg)
6078 return;
6079
2e161f78 6080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6081 if (!hdr) {
6082 nlmsg_free(msg);
6083 return;
6084 }
6085
6086 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6087 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6088 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6089 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6090 if (ack)
6091 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6092
6093 if (genlmsg_end(msg, hdr) < 0) {
6094 nlmsg_free(msg);
6095 return;
6096 }
6097
6098 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6099 return;
6100
6101 nla_put_failure:
6102 genlmsg_cancel(msg, hdr);
6103 nlmsg_free(msg);
6104}
6105
d6dc1a38
JO		 6106void
6107nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6108 struct net_device *netdev,
6109 enum nl80211_cqm_rssi_threshold_event rssi_event,
6110 gfp_t gfp)
6111{
6112 struct sk_buff *msg;
6113 struct nlattr *pinfoattr;
6114 void *hdr;
6115
6116 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6117 if (!msg)
6118 return;
6119
6120 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6121 if (!hdr) {
6122 nlmsg_free(msg);
6123 return;
6124 }
6125
6126 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6127 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6128
6129 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6130 if (!pinfoattr)
6131 goto nla_put_failure;
6132
6133 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6134 rssi_event);
6135
6136 nla_nest_end(msg, pinfoattr);
6137
6138 if (genlmsg_end(msg, hdr) < 0) {
6139 nlmsg_free(msg);
6140 return;
6141 }
6142
6143 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6144 nl80211_mlme_mcgrp.id, gfp);
6145 return;
6146
6147 nla_put_failure:
6148 genlmsg_cancel(msg, hdr);
6149 nlmsg_free(msg);
6150}
6151
c063dbf5
JB		 6152void
6153nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6154 struct net_device *netdev, const u8 *peer,
6155 u32 num_packets, gfp_t gfp)
6156{
6157 struct sk_buff *msg;
6158 struct nlattr *pinfoattr;
6159 void *hdr;
6160
6161 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6162 if (!msg)
6163 return;
6164
6165 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6166 if (!hdr) {
6167 nlmsg_free(msg);
6168 return;
6169 }
6170
6171 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6172 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6173 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6174
6175 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6176 if (!pinfoattr)
6177 goto nla_put_failure;
6178
6179 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6180
6181 nla_nest_end(msg, pinfoattr);
6182
6183 if (genlmsg_end(msg, hdr) < 0) {
6184 nlmsg_free(msg);
6185 return;
6186 }
6187
6188 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6189 nl80211_mlme_mcgrp.id, gfp);
6190 return;
6191
6192 nla_put_failure:
6193 genlmsg_cancel(msg, hdr);
6194 nlmsg_free(msg);
6195}
6196
026331c4
JM		 6197static int nl80211_netlink_notify(struct notifier_block * nb,
6198 unsigned long state,
6199 void *_notify)
6200{
6201 struct netlink_notify *notify = _notify;
6202 struct cfg80211_registered_device *rdev;
6203 struct wireless_dev *wdev;
6204
6205 if (state != NETLINK_URELEASE)
6206 return NOTIFY_DONE;
6207
6208 rcu_read_lock();
6209
6210 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6211 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 6212 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 6213
6214 rcu_read_unlock();
6215
6216 return NOTIFY_DONE;
6217}
6218
6219static struct notifier_block nl80211_netlink_notifier = {
6220 .notifier_call = nl80211_netlink_notify,
6221};
6222
55682965
JB		 6223/* initialisation/exit functions */
6224
6225int nl80211_init(void)
6226{
0d63cbb5 6227 int err;
55682965 6228
0d63cbb5
MM		 6229 err = genl_register_family_with_ops(&nl80211_fam,
6230 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 6231 if (err)
6232 return err;
6233
55682965
JB		 6234 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6235 if (err)
6236 goto err_out;
6237
2a519311
JB		 6238 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6239 if (err)
6240 goto err_out;
6241
73d54c9e
LR		 6242 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6243 if (err)
6244 goto err_out;
6245
6039f6d2
JM		 6246 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6247 if (err)
6248 goto err_out;
6249
aff89a9b
JB		 6250#ifdef CONFIG_NL80211_TESTMODE
6251 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6252 if (err)
6253 goto err_out;
6254#endif
6255
026331c4
JM		 6256 err = netlink_register_notifier(&nl80211_netlink_notifier);
6257 if (err)
6258 goto err_out;
6259
55682965
JB		 6260 return 0;
6261 err_out:
6262 genl_unregister_family(&nl80211_fam);
6263 return err;
6264}
6265
6266void nl80211_exit(void)
6267{
026331c4 6268 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6269 genl_unregister_family(&nl80211_fam);
6270}
kernel source for telekom puls (alcatel/mediatek)