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nl80211: rename NL80211_MESH_SETUP_VENDOR_PATH_SEL_IE
[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 },
93da9cc1 127
36aedc90
JM		 128 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
129 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 130
131 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
132 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
133 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 134 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
135 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 136
137 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_SSID_LEN },
139 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
140 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 141 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 142 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 143 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 144 [NL80211_ATTR_STA_FLAGS2] = {
145 .len = sizeof(struct nl80211_sta_flag_update),
146 },
3f77316c 147 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 148 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
149 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 150 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
151 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
152 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 153 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 154 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 155 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
156 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 157 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
158 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 159 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 160 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
161 .len = IEEE80211_MAX_DATA_LEN },
162 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 163 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 164 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 165 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 166 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 167 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
168 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 169 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 170 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
171 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 172 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 173 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 174 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
55682965
JB		 175};
176
e31b8213 177/* policy for the key attributes */
b54452b0 178static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 179 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 180 [NL80211_KEY_IDX] = { .type = NLA_U8 },
181 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
182 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
183 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
184 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 185 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 186 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
187};
188
189/* policy for the key default flags */
190static const struct nla_policy
191nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
192 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
193 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 194};
195
a043897a
HS		 196/* ifidx get helper */
197static int nl80211_get_ifidx(struct netlink_callback *cb)
198{
199 int res;
200
201 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
202 nl80211_fam.attrbuf, nl80211_fam.maxattr,
203 nl80211_policy);
204 if (res)
205 return res;
206
207 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
208 return -EINVAL;
209
210 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
211 if (!res)
212 return -EINVAL;
213 return res;
214}
215
67748893
JB		 216static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
217 struct netlink_callback *cb,
218 struct cfg80211_registered_device **rdev,
219 struct net_device **dev)
220{
221 int ifidx = cb->args[0];
222 int err;
223
224 if (!ifidx)
225 ifidx = nl80211_get_ifidx(cb);
226 if (ifidx < 0)
227 return ifidx;
228
229 cb->args[0] = ifidx;
230
231 rtnl_lock();
232
233 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
234 if (!*dev) {
235 err = -ENODEV;
236 goto out_rtnl;
237 }
238
239 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 240 if (IS_ERR(*rdev)) {
241 err = PTR_ERR(*rdev);
67748893
JB		 242 goto out_rtnl;
243 }
244
245 return 0;
246 out_rtnl:
247 rtnl_unlock();
248 return err;
249}
250
251static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
252{
253 cfg80211_unlock_rdev(rdev);
254 rtnl_unlock();
255}
256
f4a11bb0
JB		 257/* IE validation */
258static bool is_valid_ie_attr(const struct nlattr *attr)
259{
260 const u8 *pos;
261 int len;
262
263 if (!attr)
264 return true;
265
266 pos = nla_data(attr);
267 len = nla_len(attr);
268
269 while (len) {
270 u8 elemlen;
271
272 if (len < 2)
273 return false;
274 len -= 2;
275
276 elemlen = pos[1];
277 if (elemlen > len)
278 return false;
279
280 len -= elemlen;
281 pos += 2 + elemlen;
282 }
283
284 return true;
285}
286
55682965
JB		 287/* message building helper */
288static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
289 int flags, u8 cmd)
290{
291 /* since there is no private header just add the generic one */
292 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
293}
294
5dab3b8a
LR		 295static int nl80211_msg_put_channel(struct sk_buff *msg,
296 struct ieee80211_channel *chan)
297{
298 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
299 chan->center_freq);
300
301 if (chan->flags & IEEE80211_CHAN_DISABLED)
302 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
303 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
304 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
305 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
306 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
307 if (chan->flags & IEEE80211_CHAN_RADAR)
308 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
309
310 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
311 DBM_TO_MBM(chan->max_power));
312
313 return 0;
314
315 nla_put_failure:
316 return -ENOBUFS;
317}
318
55682965
JB		 319/* netlink command implementations */
320
b9454e83
JB		 321struct key_parse {
322 struct key_params p;
323 int idx;
e31b8213 324 int type;
b9454e83 325 bool def, defmgmt;
dbd2fd65 326 bool def_uni, def_multi;
b9454e83
JB		 327};
328
329static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
330{
331 struct nlattr *tb[NL80211_KEY_MAX + 1];
332 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
333 nl80211_key_policy);
334 if (err)
335 return err;
336
337 k->def = !!tb[NL80211_KEY_DEFAULT];
338 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
339
dbd2fd65
JB		 340 if (k->def) {
341 k->def_uni = true;
342 k->def_multi = true;
343 }
344 if (k->defmgmt)
345 k->def_multi = true;
346
b9454e83
JB		 347 if (tb[NL80211_KEY_IDX])
348 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
349
350 if (tb[NL80211_KEY_DATA]) {
351 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
352 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
353 }
354
355 if (tb[NL80211_KEY_SEQ]) {
356 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
357 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
358 }
359
360 if (tb[NL80211_KEY_CIPHER])
361 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
362
e31b8213
JB		 363 if (tb[NL80211_KEY_TYPE]) {
364 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
365 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
366 return -EINVAL;
367 }
368
dbd2fd65
JB		 369 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
370 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
371 int err = nla_parse_nested(kdt,
372 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
373 tb[NL80211_KEY_DEFAULT_TYPES],
374 nl80211_key_default_policy);
375 if (err)
376 return err;
377
378 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
379 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
380 }
381
b9454e83
JB		 382 return 0;
383}
384
385static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
386{
387 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
388 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
389 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
390 }
391
392 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
393 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
394 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
395 }
396
397 if (info->attrs[NL80211_ATTR_KEY_IDX])
398 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
399
400 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
401 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
402
403 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
404 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
405
dbd2fd65
JB		 406 if (k->def) {
407 k->def_uni = true;
408 k->def_multi = true;
409 }
410 if (k->defmgmt)
411 k->def_multi = true;
412
e31b8213
JB		 413 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
414 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
415 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
416 return -EINVAL;
417 }
418
dbd2fd65
JB		 419 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
420 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
421 int err = nla_parse_nested(
422 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
423 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
424 nl80211_key_default_policy);
425 if (err)
426 return err;
427
428 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
429 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
430 }
431
b9454e83
JB		 432 return 0;
433}
434
435static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
436{
437 int err;
438
439 memset(k, 0, sizeof(*k));
440 k->idx = -1;
e31b8213 441 k->type = -1;
b9454e83
JB		 442
443 if (info->attrs[NL80211_ATTR_KEY])
444 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
445 else
446 err = nl80211_parse_key_old(info, k);
447
448 if (err)
449 return err;
450
451 if (k->def && k->defmgmt)
452 return -EINVAL;
453
dbd2fd65
JB		 454 if (k->defmgmt) {
455 if (k->def_uni || !k->def_multi)
456 return -EINVAL;
457 }
458
b9454e83
JB		 459 if (k->idx != -1) {
460 if (k->defmgmt) {
461 if (k->idx < 4 || k->idx > 5)
462 return -EINVAL;
463 } else if (k->def) {
464 if (k->idx < 0 || k->idx > 3)
465 return -EINVAL;
466 } else {
467 if (k->idx < 0 || k->idx > 5)
468 return -EINVAL;
469 }
470 }
471
472 return 0;
473}
474
fffd0934
JB		 475static struct cfg80211_cached_keys *
476nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
477 struct nlattr *keys)
478{
479 struct key_parse parse;
480 struct nlattr *key;
481 struct cfg80211_cached_keys *result;
482 int rem, err, def = 0;
483
484 result = kzalloc(sizeof(*result), GFP_KERNEL);
485 if (!result)
486 return ERR_PTR(-ENOMEM);
487
488 result->def = -1;
489 result->defmgmt = -1;
490
491 nla_for_each_nested(key, keys, rem) {
492 memset(&parse, 0, sizeof(parse));
493 parse.idx = -1;
494
495 err = nl80211_parse_key_new(key, &parse);
496 if (err)
497 goto error;
498 err = -EINVAL;
499 if (!parse.p.key)
500 goto error;
501 if (parse.idx < 0 || parse.idx > 4)
502 goto error;
503 if (parse.def) {
504 if (def)
505 goto error;
506 def = 1;
507 result->def = parse.idx;
dbd2fd65
JB		 508 if (!parse.def_uni || !parse.def_multi)
509 goto error;
fffd0934
JB		 510 } else if (parse.defmgmt)
511 goto error;
512 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 513 parse.idx, false, NULL);
fffd0934
JB		 514 if (err)
515 goto error;
516 result->params[parse.idx].cipher = parse.p.cipher;
517 result->params[parse.idx].key_len = parse.p.key_len;
518 result->params[parse.idx].key = result->data[parse.idx];
519 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
520 }
521
522 return result;
523 error:
524 kfree(result);
525 return ERR_PTR(err);
526}
527
528static int nl80211_key_allowed(struct wireless_dev *wdev)
529{
530 ASSERT_WDEV_LOCK(wdev);
531
fffd0934
JB		 532 switch (wdev->iftype) {
533 case NL80211_IFTYPE_AP:
534 case NL80211_IFTYPE_AP_VLAN:
074ac8df 535 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 536 break;
537 case NL80211_IFTYPE_ADHOC:
538 if (!wdev->current_bss)
539 return -ENOLINK;
540 break;
541 case NL80211_IFTYPE_STATION:
074ac8df 542 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 543 if (wdev->sme_state != CFG80211_SME_CONNECTED)
544 return -ENOLINK;
545 break;
546 default:
547 return -EINVAL;
548 }
549
550 return 0;
551}
552
55682965
JB		 553static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
554 struct cfg80211_registered_device *dev)
555{
556 void *hdr;
ee688b00
JB		 557 struct nlattr *nl_bands, *nl_band;
558 struct nlattr *nl_freqs, *nl_freq;
559 struct nlattr *nl_rates, *nl_rate;
f59ac048 560 struct nlattr *nl_modes;
8fdc621d 561 struct nlattr *nl_cmds;
ee688b00
JB		 562 enum ieee80211_band band;
563 struct ieee80211_channel *chan;
564 struct ieee80211_rate *rate;
565 int i;
f59ac048 566 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 567 const struct ieee80211_txrx_stypes *mgmt_stypes =
568 dev->wiphy.mgmt_stypes;
55682965
JB		 569
570 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
571 if (!hdr)
572 return -1;
573
b5850a7a 574 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 575 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 576
f5ea9120
JB		 577 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
578 cfg80211_rdev_list_generation);
579
b9a5f8ca
JM		 580 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
581 dev->wiphy.retry_short);
582 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
583 dev->wiphy.retry_long);
584 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
585 dev->wiphy.frag_threshold);
586 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
587 dev->wiphy.rts_threshold);
81077e82
LT		 588 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
589 dev->wiphy.coverage_class);
2a519311
JB		 590 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
591 dev->wiphy.max_scan_ssids);
18a83659
JB		 592 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
593 dev->wiphy.max_scan_ie_len);
ee688b00 594
e31b8213
JB		 595 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
596 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
597
25e47c18
JB		 598 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
599 sizeof(u32) * dev->wiphy.n_cipher_suites,
600 dev->wiphy.cipher_suites);
601
67fbb16b
SO		 602 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
603 dev->wiphy.max_num_pmkids);
604
c0692b8f
JB		 605 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
606 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
607
39fd5de4
BR		 608 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
609 dev->wiphy.available_antennas_tx);
610 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
611 dev->wiphy.available_antennas_rx);
612
7f531e03
BR		 613 if ((dev->wiphy.available_antennas_tx ||
614 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 615 u32 tx_ant = 0, rx_ant = 0;
616 int res;
617 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
618 if (!res) {
619 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
620 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
621 }
622 }
623
f59ac048
LR		 624 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
625 if (!nl_modes)
626 goto nla_put_failure;
627
628 i = 0;
629 while (ifmodes) {
630 if (ifmodes & 1)
631 NLA_PUT_FLAG(msg, i);
632 ifmodes >>= 1;
633 i++;
634 }
635
636 nla_nest_end(msg, nl_modes);
637
ee688b00
JB		 638 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
639 if (!nl_bands)
640 goto nla_put_failure;
641
642 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
643 if (!dev->wiphy.bands[band])
644 continue;
645
646 nl_band = nla_nest_start(msg, band);
647 if (!nl_band)
648 goto nla_put_failure;
649
d51626df
JB		 650 /* add HT info */
651 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
652 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
653 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
654 &dev->wiphy.bands[band]->ht_cap.mcs);
655 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
656 dev->wiphy.bands[band]->ht_cap.cap);
657 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
658 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
659 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
660 dev->wiphy.bands[band]->ht_cap.ampdu_density);
661 }
662
ee688b00
JB		 663 /* add frequencies */
664 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
665 if (!nl_freqs)
666 goto nla_put_failure;
667
668 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
669 nl_freq = nla_nest_start(msg, i);
670 if (!nl_freq)
671 goto nla_put_failure;
672
673 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 674
675 if (nl80211_msg_put_channel(msg, chan))
676 goto nla_put_failure;
e2f367f2 677
ee688b00
JB		 678 nla_nest_end(msg, nl_freq);
679 }
680
681 nla_nest_end(msg, nl_freqs);
682
683 /* add bitrates */
684 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
685 if (!nl_rates)
686 goto nla_put_failure;
687
688 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
689 nl_rate = nla_nest_start(msg, i);
690 if (!nl_rate)
691 goto nla_put_failure;
692
693 rate = &dev->wiphy.bands[band]->bitrates[i];
694 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
695 rate->bitrate);
696 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
697 NLA_PUT_FLAG(msg,
698 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
699
700 nla_nest_end(msg, nl_rate);
701 }
702
703 nla_nest_end(msg, nl_rates);
704
705 nla_nest_end(msg, nl_band);
706 }
707 nla_nest_end(msg, nl_bands);
708
8fdc621d
JB		 709 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
710 if (!nl_cmds)
711 goto nla_put_failure;
712
713 i = 0;
714#define CMD(op, n) \
715 do { \
716 if (dev->ops->op) { \
717 i++; \
718 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
719 } \
720 } while (0)
721
722 CMD(add_virtual_intf, NEW_INTERFACE);
723 CMD(change_virtual_intf, SET_INTERFACE);
724 CMD(add_key, NEW_KEY);
725 CMD(add_beacon, NEW_BEACON);
726 CMD(add_station, NEW_STATION);
727 CMD(add_mpath, NEW_MPATH);
24bdd9f4 728 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 729 CMD(change_bss, SET_BSS);
636a5d36
JM		 730 CMD(auth, AUTHENTICATE);
731 CMD(assoc, ASSOCIATE);
732 CMD(deauth, DEAUTHENTICATE);
733 CMD(disassoc, DISASSOCIATE);
04a773ad 734 CMD(join_ibss, JOIN_IBSS);
29cbe68c 735 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 736 CMD(set_pmksa, SET_PMKSA);
737 CMD(del_pmksa, DEL_PMKSA);
738 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 739 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 740 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 741 CMD(mgmt_tx, FRAME);
f7ca38df 742 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 743 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 744 i++;
745 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
746 }
f444de05 747 CMD(set_channel, SET_CHANNEL);
e8347eba 748 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 749
750#undef CMD
b23aa676 751
6829c878 752 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 753 i++;
754 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
755 }
756
6829c878 757 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 758 i++;
759 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
760 }
761
8fdc621d
JB		 762 nla_nest_end(msg, nl_cmds);
763
a293911d
JB		 764 if (dev->ops->remain_on_channel)
765 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
766 dev->wiphy.max_remain_on_channel_duration);
767
f7ca38df
JB		 768 /* for now at least assume all drivers have it */
769 if (dev->ops->mgmt_tx)
770 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
771
2e161f78
JB		 772 if (mgmt_stypes) {
773 u16 stypes;
774 struct nlattr *nl_ftypes, *nl_ifs;
775 enum nl80211_iftype ift;
776
777 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
778 if (!nl_ifs)
779 goto nla_put_failure;
780
781 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
782 nl_ftypes = nla_nest_start(msg, ift);
783 if (!nl_ftypes)
784 goto nla_put_failure;
785 i = 0;
786 stypes = mgmt_stypes[ift].tx;
787 while (stypes) {
788 if (stypes & 1)
789 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
790 (i << 4) | IEEE80211_FTYPE_MGMT);
791 stypes >>= 1;
792 i++;
793 }
794 nla_nest_end(msg, nl_ftypes);
795 }
796
74b70a4e
JB		 797 nla_nest_end(msg, nl_ifs);
798
2e161f78
JB		 799 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
800 if (!nl_ifs)
801 goto nla_put_failure;
802
803 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
804 nl_ftypes = nla_nest_start(msg, ift);
805 if (!nl_ftypes)
806 goto nla_put_failure;
807 i = 0;
808 stypes = mgmt_stypes[ift].rx;
809 while (stypes) {
810 if (stypes & 1)
811 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
812 (i << 4) | IEEE80211_FTYPE_MGMT);
813 stypes >>= 1;
814 i++;
815 }
816 nla_nest_end(msg, nl_ftypes);
817 }
818 nla_nest_end(msg, nl_ifs);
819 }
820
55682965
JB		 821 return genlmsg_end(msg, hdr);
822
823 nla_put_failure:
bc3ed28c
TG		 824 genlmsg_cancel(msg, hdr);
825 return -EMSGSIZE;
55682965
JB		 826}
827
828static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
829{
830 int idx = 0;
831 int start = cb->args[0];
832 struct cfg80211_registered_device *dev;
833
a1794390 834 mutex_lock(&cfg80211_mutex);
79c97e97 835 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 836 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
837 continue;
b4637271 838 if (++idx <= start)
55682965
JB		 839 continue;
840 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
841 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 842 dev) < 0) {
843 idx--;
55682965 844 break;
b4637271 845 }
55682965 846 }
a1794390 847 mutex_unlock(&cfg80211_mutex);
55682965
JB		 848
849 cb->args[0] = idx;
850
851 return skb->len;
852}
853
854static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
855{
856 struct sk_buff *msg;
4c476991 857 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 858
fd2120ca 859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 860 if (!msg)
4c476991 861 return -ENOMEM;
55682965 862
4c476991
JB		 863 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
864 nlmsg_free(msg);
865 return -ENOBUFS;
866 }
55682965 867
134e6375 868 return genlmsg_reply(msg, info);
55682965
JB		 869}
870
31888487
JM		 871static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
872 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
873 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
874 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
875 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
876 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
877};
878
879static int parse_txq_params(struct nlattr *tb[],
880 struct ieee80211_txq_params *txq_params)
881{
882 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
883 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
884 !tb[NL80211_TXQ_ATTR_AIFS])
885 return -EINVAL;
886
887 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
888 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
889 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
890 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
891 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
892
893 return 0;
894}
895
f444de05
JB		 896static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
897{
898 /*
899 * You can only set the channel explicitly for AP, mesh
900 * and WDS type interfaces; all others have their channel
901 * managed via their respective "establish a connection"
902 * command (connect, join, ...)
903 *
904 * Monitors are special as they are normally slaved to
905 * whatever else is going on, so they behave as though
906 * you tried setting the wiphy channel itself.
907 */
908 return !wdev ||
909 wdev->iftype == NL80211_IFTYPE_AP ||
910 wdev->iftype == NL80211_IFTYPE_WDS ||
911 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 912 wdev->iftype == NL80211_IFTYPE_MONITOR ||
913 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 914}
915
916static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
917 struct wireless_dev *wdev,
918 struct genl_info *info)
919{
920 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
921 u32 freq;
922 int result;
923
924 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
925 return -EINVAL;
926
927 if (!nl80211_can_set_dev_channel(wdev))
928 return -EOPNOTSUPP;
929
930 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
931 channel_type = nla_get_u32(info->attrs[
932 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
933 if (channel_type != NL80211_CHAN_NO_HT &&
934 channel_type != NL80211_CHAN_HT20 &&
935 channel_type != NL80211_CHAN_HT40PLUS &&
936 channel_type != NL80211_CHAN_HT40MINUS)
937 return -EINVAL;
938 }
939
940 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
941
942 mutex_lock(&rdev->devlist_mtx);
943 if (wdev) {
944 wdev_lock(wdev);
945 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
946 wdev_unlock(wdev);
947 } else {
948 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
949 }
950 mutex_unlock(&rdev->devlist_mtx);
951
952 return result;
953}
954
955static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
956{
4c476991
JB		 957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
958 struct net_device *netdev = info->user_ptr[1];
f444de05 959
4c476991 960 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 961}
962
e8347eba
BJ		 963static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
964{
43b19952
JB		 965 struct cfg80211_registered_device *rdev = info->user_ptr[0];
966 struct net_device *dev = info->user_ptr[1];
967 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 968 const u8 *bssid;
e8347eba
BJ		 969
970 if (!info->attrs[NL80211_ATTR_MAC])
971 return -EINVAL;
972
43b19952
JB		 973 if (netif_running(dev))
974 return -EBUSY;
e8347eba 975
43b19952
JB		 976 if (!rdev->ops->set_wds_peer)
977 return -EOPNOTSUPP;
e8347eba 978
43b19952
JB		 979 if (wdev->iftype != NL80211_IFTYPE_WDS)
980 return -EOPNOTSUPP;
e8347eba
BJ		 981
982 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 983 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 984}
985
986
55682965
JB		 987static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
988{
989 struct cfg80211_registered_device *rdev;
f444de05
JB		 990 struct net_device *netdev = NULL;
991 struct wireless_dev *wdev;
a1e567c8 992 int result = 0, rem_txq_params = 0;
31888487 993 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 994 u32 changed;
995 u8 retry_short = 0, retry_long = 0;
996 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 997 u8 coverage_class = 0;
55682965 998
f444de05
JB		 999 /*
1000 * Try to find the wiphy and netdev. Normally this
1001 * function shouldn't need the netdev, but this is
1002 * done for backward compatibility -- previously
1003 * setting the channel was done per wiphy, but now
1004 * it is per netdev. Previous userland like hostapd
1005 * also passed a netdev to set_wiphy, so that it is
1006 * possible to let that go to the right netdev!
1007 */
4bbf4d56
JB		 1008 mutex_lock(&cfg80211_mutex);
1009
f444de05
JB		 1010 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1011 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1012
1013 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1014 if (netdev && netdev->ieee80211_ptr) {
1015 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1016 mutex_lock(&rdev->mtx);
1017 } else
1018 netdev = NULL;
4bbf4d56
JB		 1019 }
1020
f444de05
JB		 1021 if (!netdev) {
1022 rdev = __cfg80211_rdev_from_info(info);
1023 if (IS_ERR(rdev)) {
1024 mutex_unlock(&cfg80211_mutex);
4c476991 1025 return PTR_ERR(rdev);
f444de05
JB		 1026 }
1027 wdev = NULL;
1028 netdev = NULL;
1029 result = 0;
1030
1031 mutex_lock(&rdev->mtx);
1032 } else if (netif_running(netdev) &&
1033 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1034 wdev = netdev->ieee80211_ptr;
1035 else
1036 wdev = NULL;
1037
1038 /*
1039 * end workaround code, by now the rdev is available
1040 * and locked, and wdev may or may not be NULL.
1041 */
4bbf4d56
JB		 1042
1043 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1044 result = cfg80211_dev_rename(
1045 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1046
1047 mutex_unlock(&cfg80211_mutex);
1048
1049 if (result)
1050 goto bad_res;
31888487
JM		 1051
1052 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1053 struct ieee80211_txq_params txq_params;
1054 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1055
1056 if (!rdev->ops->set_txq_params) {
1057 result = -EOPNOTSUPP;
1058 goto bad_res;
1059 }
1060
1061 nla_for_each_nested(nl_txq_params,
1062 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1063 rem_txq_params) {
1064 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1065 nla_data(nl_txq_params),
1066 nla_len(nl_txq_params),
1067 txq_params_policy);
1068 result = parse_txq_params(tb, &txq_params);
1069 if (result)
1070 goto bad_res;
1071
1072 result = rdev->ops->set_txq_params(&rdev->wiphy,
1073 &txq_params);
1074 if (result)
1075 goto bad_res;
1076 }
1077 }
55682965 1078
72bdcf34 1079 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1080 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1081 if (result)
1082 goto bad_res;
1083 }
1084
98d2ff8b
JO		 1085 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1086 enum nl80211_tx_power_setting type;
1087 int idx, mbm = 0;
1088
1089 if (!rdev->ops->set_tx_power) {
60ea385f 1090 result = -EOPNOTSUPP;
98d2ff8b
JO		 1091 goto bad_res;
1092 }
1093
1094 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1095 type = nla_get_u32(info->attrs[idx]);
1096
1097 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1098 (type != NL80211_TX_POWER_AUTOMATIC)) {
1099 result = -EINVAL;
1100 goto bad_res;
1101 }
1102
1103 if (type != NL80211_TX_POWER_AUTOMATIC) {
1104 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1105 mbm = nla_get_u32(info->attrs[idx]);
1106 }
1107
1108 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1109 if (result)
1110 goto bad_res;
1111 }
1112
afe0cbf8
BR		 1113 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1114 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1115 u32 tx_ant, rx_ant;
7f531e03
BR		 1116 if ((!rdev->wiphy.available_antennas_tx &&
1117 !rdev->wiphy.available_antennas_rx) ||
1118 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1119 result = -EOPNOTSUPP;
1120 goto bad_res;
1121 }
1122
1123 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1124 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1125
a7ffac95 1126 /* reject antenna configurations which don't match the
7f531e03
BR		 1127 * available antenna masks, except for the "all" mask */
1128 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1129 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1130 result = -EINVAL;
1131 goto bad_res;
1132 }
1133
7f531e03
BR		 1134 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1135 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1136
afe0cbf8
BR		 1137 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1138 if (result)
1139 goto bad_res;
1140 }
1141
b9a5f8ca
JM		 1142 changed = 0;
1143
1144 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1145 retry_short = nla_get_u8(
1146 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1147 if (retry_short == 0) {
1148 result = -EINVAL;
1149 goto bad_res;
1150 }
1151 changed |= WIPHY_PARAM_RETRY_SHORT;
1152 }
1153
1154 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1155 retry_long = nla_get_u8(
1156 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1157 if (retry_long == 0) {
1158 result = -EINVAL;
1159 goto bad_res;
1160 }
1161 changed |= WIPHY_PARAM_RETRY_LONG;
1162 }
1163
1164 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1165 frag_threshold = nla_get_u32(
1166 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1167 if (frag_threshold < 256) {
1168 result = -EINVAL;
1169 goto bad_res;
1170 }
1171 if (frag_threshold != (u32) -1) {
1172 /*
1173 * Fragments (apart from the last one) are required to
1174 * have even length. Make the fragmentation code
1175 * simpler by stripping LSB should someone try to use
1176 * odd threshold value.
1177 */
1178 frag_threshold &= ~0x1;
1179 }
1180 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1181 }
1182
1183 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1184 rts_threshold = nla_get_u32(
1185 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1186 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1187 }
1188
81077e82
LT		 1189 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1190 coverage_class = nla_get_u8(
1191 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1192 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1193 }
1194
b9a5f8ca
JM		 1195 if (changed) {
1196 u8 old_retry_short, old_retry_long;
1197 u32 old_frag_threshold, old_rts_threshold;
81077e82 1198 u8 old_coverage_class;
b9a5f8ca
JM		 1199
1200 if (!rdev->ops->set_wiphy_params) {
1201 result = -EOPNOTSUPP;
1202 goto bad_res;
1203 }
1204
1205 old_retry_short = rdev->wiphy.retry_short;
1206 old_retry_long = rdev->wiphy.retry_long;
1207 old_frag_threshold = rdev->wiphy.frag_threshold;
1208 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1209 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1210
1211 if (changed & WIPHY_PARAM_RETRY_SHORT)
1212 rdev->wiphy.retry_short = retry_short;
1213 if (changed & WIPHY_PARAM_RETRY_LONG)
1214 rdev->wiphy.retry_long = retry_long;
1215 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1216 rdev->wiphy.frag_threshold = frag_threshold;
1217 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1218 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1219 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1220 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1221
1222 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1223 if (result) {
1224 rdev->wiphy.retry_short = old_retry_short;
1225 rdev->wiphy.retry_long = old_retry_long;
1226 rdev->wiphy.frag_threshold = old_frag_threshold;
1227 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1228 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1229 }
1230 }
72bdcf34 1231
306d6112 1232 bad_res:
4bbf4d56 1233 mutex_unlock(&rdev->mtx);
f444de05
JB		 1234 if (netdev)
1235 dev_put(netdev);
55682965
JB		 1236 return result;
1237}
1238
1239
1240static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1241 struct cfg80211_registered_device *rdev,
55682965
JB		 1242 struct net_device *dev)
1243{
1244 void *hdr;
1245
1246 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1247 if (!hdr)
1248 return -1;
1249
1250 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1251 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1252 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1253 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1254
1255 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1256 rdev->devlist_generation ^
1257 (cfg80211_rdev_list_generation << 2));
1258
55682965
JB		 1259 return genlmsg_end(msg, hdr);
1260
1261 nla_put_failure:
bc3ed28c
TG		 1262 genlmsg_cancel(msg, hdr);
1263 return -EMSGSIZE;
55682965
JB		 1264}
1265
1266static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1267{
1268 int wp_idx = 0;
1269 int if_idx = 0;
1270 int wp_start = cb->args[0];
1271 int if_start = cb->args[1];
f5ea9120 1272 struct cfg80211_registered_device *rdev;
55682965
JB		 1273 struct wireless_dev *wdev;
1274
a1794390 1275 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1276 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1277 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1278 continue;
bba95fef
JB		 1279 if (wp_idx < wp_start) {
1280 wp_idx++;
55682965 1281 continue;
bba95fef 1282 }
55682965
JB		 1283 if_idx = 0;
1284
f5ea9120
JB		 1285 mutex_lock(&rdev->devlist_mtx);
1286 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1287 if (if_idx < if_start) {
1288 if_idx++;
55682965 1289 continue;
bba95fef 1290 }
55682965
JB		 1291 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1292 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1293 rdev, wdev->netdev) < 0) {
1294 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1295 goto out;
1296 }
1297 if_idx++;
55682965 1298 }
f5ea9120 1299 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1300
1301 wp_idx++;
55682965 1302 }
bba95fef 1303 out:
a1794390 1304 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1305
1306 cb->args[0] = wp_idx;
1307 cb->args[1] = if_idx;
1308
1309 return skb->len;
1310}
1311
1312static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1313{
1314 struct sk_buff *msg;
4c476991
JB		 1315 struct cfg80211_registered_device *dev = info->user_ptr[0];
1316 struct net_device *netdev = info->user_ptr[1];
55682965 1317
fd2120ca 1318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1319 if (!msg)
4c476991 1320 return -ENOMEM;
55682965 1321
d726405a 1322 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1323 dev, netdev) < 0) {
1324 nlmsg_free(msg);
1325 return -ENOBUFS;
1326 }
55682965 1327
134e6375 1328 return genlmsg_reply(msg, info);
55682965
JB		 1329}
1330
66f7ac50
MW		 1331static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1332 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1333 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1334 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1335 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1336 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1337};
1338
1339static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1340{
1341 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1342 int flag;
1343
1344 *mntrflags = 0;
1345
1346 if (!nla)
1347 return -EINVAL;
1348
1349 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1350 nla, mntr_flags_policy))
1351 return -EINVAL;
1352
1353 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1354 if (flags[flag])
1355 *mntrflags |= (1<<flag);
1356
1357 return 0;
1358}
1359
9bc383de 1360static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1361 struct net_device *netdev, u8 use_4addr,
1362 enum nl80211_iftype iftype)
9bc383de 1363{
ad4bb6f8 1364 if (!use_4addr) {
f350a0a8 1365 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1366 return -EBUSY;
9bc383de 1367 return 0;
ad4bb6f8 1368 }
9bc383de
JB		 1369
1370 switch (iftype) {
1371 case NL80211_IFTYPE_AP_VLAN:
1372 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1373 return 0;
1374 break;
1375 case NL80211_IFTYPE_STATION:
1376 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1377 return 0;
1378 break;
1379 default:
1380 break;
1381 }
1382
1383 return -EOPNOTSUPP;
1384}
1385
55682965
JB		 1386static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1387{
4c476991 1388 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1389 struct vif_params params;
e36d56b6 1390 int err;
04a773ad 1391 enum nl80211_iftype otype, ntype;
4c476991 1392 struct net_device *dev = info->user_ptr[1];
92ffe055 1393 u32 _flags, *flags = NULL;
ac7f9cfa 1394 bool change = false;
55682965 1395
2ec600d6
LCC		 1396 memset(&params, 0, sizeof(params));
1397
04a773ad 1398 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1399
723b038d 1400 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1401 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1402 if (otype != ntype)
ac7f9cfa 1403 change = true;
4c476991
JB		 1404 if (ntype > NL80211_IFTYPE_MAX)
1405 return -EINVAL;
723b038d
JB		 1406 }
1407
92ffe055 1408 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1409 struct wireless_dev *wdev = dev->ieee80211_ptr;
1410
4c476991
JB		 1411 if (ntype != NL80211_IFTYPE_MESH_POINT)
1412 return -EINVAL;
29cbe68c
JB		 1413 if (netif_running(dev))
1414 return -EBUSY;
1415
1416 wdev_lock(wdev);
1417 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1418 IEEE80211_MAX_MESH_ID_LEN);
1419 wdev->mesh_id_up_len =
1420 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1421 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1422 wdev->mesh_id_up_len);
1423 wdev_unlock(wdev);
2ec600d6
LCC		 1424 }
1425
8b787643
FF		 1426 if (info->attrs[NL80211_ATTR_4ADDR]) {
1427 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1428 change = true;
ad4bb6f8 1429 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1430 if (err)
4c476991 1431 return err;
8b787643
FF		 1432 } else {
1433 params.use_4addr = -1;
1434 }
1435
92ffe055 1436 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1437 if (ntype != NL80211_IFTYPE_MONITOR)
1438 return -EINVAL;
92ffe055
JB		 1439 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1440 &_flags);
ac7f9cfa 1441 if (err)
4c476991 1442 return err;
ac7f9cfa
JB		 1443
1444 flags = &_flags;
1445 change = true;
92ffe055 1446 }
3b85875a 1447
ac7f9cfa 1448 if (change)
3d54d255 1449 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1450 else
1451 err = 0;
60719ffd 1452
9bc383de
JB		 1453 if (!err && params.use_4addr != -1)
1454 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1455
55682965
JB		 1456 return err;
1457}
1458
1459static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1460{
4c476991 1461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1462 struct vif_params params;
f9e10ce4 1463 struct net_device *dev;
55682965
JB		 1464 int err;
1465 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1466 u32 flags;
55682965 1467
2ec600d6
LCC		 1468 memset(&params, 0, sizeof(params));
1469
55682965
JB		 1470 if (!info->attrs[NL80211_ATTR_IFNAME])
1471 return -EINVAL;
1472
1473 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1474 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1475 if (type > NL80211_IFTYPE_MAX)
1476 return -EINVAL;
1477 }
1478
79c97e97 1479 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1480 !(rdev->wiphy.interface_modes & (1 << type)))
1481 return -EOPNOTSUPP;
55682965 1482
9bc383de 1483 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1484 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1485 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1486 if (err)
4c476991 1487 return err;
9bc383de 1488 }
8b787643 1489
66f7ac50
MW		 1490 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1491 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1492 &flags);
f9e10ce4 1493 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1494 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1495 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1496 if (IS_ERR(dev))
1497 return PTR_ERR(dev);
2ec600d6 1498
29cbe68c
JB		 1499 if (type == NL80211_IFTYPE_MESH_POINT &&
1500 info->attrs[NL80211_ATTR_MESH_ID]) {
1501 struct wireless_dev *wdev = dev->ieee80211_ptr;
1502
1503 wdev_lock(wdev);
1504 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1505 IEEE80211_MAX_MESH_ID_LEN);
1506 wdev->mesh_id_up_len =
1507 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1508 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1509 wdev->mesh_id_up_len);
1510 wdev_unlock(wdev);
1511 }
1512
f9e10ce4 1513 return 0;
55682965
JB		 1514}
1515
1516static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1517{
4c476991
JB		 1518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1519 struct net_device *dev = info->user_ptr[1];
55682965 1520
4c476991
JB		 1521 if (!rdev->ops->del_virtual_intf)
1522 return -EOPNOTSUPP;
55682965 1523
4c476991 1524 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1525}
1526
41ade00f
JB		 1527struct get_key_cookie {
1528 struct sk_buff *msg;
1529 int error;
b9454e83 1530 int idx;
41ade00f
JB		 1531};
1532
1533static void get_key_callback(void *c, struct key_params *params)
1534{
b9454e83 1535 struct nlattr *key;
41ade00f
JB		 1536 struct get_key_cookie *cookie = c;
1537
1538 if (params->key)
1539 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1540 params->key_len, params->key);
1541
1542 if (params->seq)
1543 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1544 params->seq_len, params->seq);
1545
1546 if (params->cipher)
1547 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1548 params->cipher);
1549
b9454e83
JB		 1550 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1551 if (!key)
1552 goto nla_put_failure;
1553
1554 if (params->key)
1555 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1556 params->key_len, params->key);
1557
1558 if (params->seq)
1559 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1560 params->seq_len, params->seq);
1561
1562 if (params->cipher)
1563 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1564 params->cipher);
1565
1566 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1567
1568 nla_nest_end(cookie->msg, key);
1569
41ade00f
JB		 1570 return;
1571 nla_put_failure:
1572 cookie->error = 1;
1573}
1574
1575static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1576{
4c476991 1577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1578 int err;
4c476991 1579 struct net_device *dev = info->user_ptr[1];
41ade00f 1580 u8 key_idx = 0;
e31b8213
JB		 1581 const u8 *mac_addr = NULL;
1582 bool pairwise;
41ade00f
JB		 1583 struct get_key_cookie cookie = {
1584 .error = 0,
1585 };
1586 void *hdr;
1587 struct sk_buff *msg;
1588
1589 if (info->attrs[NL80211_ATTR_KEY_IDX])
1590 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1591
3cfcf6ac 1592 if (key_idx > 5)
41ade00f
JB		 1593 return -EINVAL;
1594
1595 if (info->attrs[NL80211_ATTR_MAC])
1596 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1597
e31b8213
JB		 1598 pairwise = !!mac_addr;
1599 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1600 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1601 if (kt >= NUM_NL80211_KEYTYPES)
1602 return -EINVAL;
1603 if (kt != NL80211_KEYTYPE_GROUP &&
1604 kt != NL80211_KEYTYPE_PAIRWISE)
1605 return -EINVAL;
1606 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1607 }
1608
4c476991
JB		 1609 if (!rdev->ops->get_key)
1610 return -EOPNOTSUPP;
41ade00f 1611
fd2120ca 1612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1613 if (!msg)
1614 return -ENOMEM;
41ade00f
JB		 1615
1616 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1617 NL80211_CMD_NEW_KEY);
4c476991
JB		 1618 if (IS_ERR(hdr))
1619 return PTR_ERR(hdr);
41ade00f
JB		 1620
1621 cookie.msg = msg;
b9454e83 1622 cookie.idx = key_idx;
41ade00f
JB		 1623
1624 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1625 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1626 if (mac_addr)
1627 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1628
e31b8213
JB		 1629 if (pairwise && mac_addr &&
1630 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1631 return -ENOENT;
1632
1633 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1634 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1635
1636 if (err)
6c95e2a2 1637 goto free_msg;
41ade00f
JB		 1638
1639 if (cookie.error)
1640 goto nla_put_failure;
1641
1642 genlmsg_end(msg, hdr);
4c476991 1643 return genlmsg_reply(msg, info);
41ade00f
JB		 1644
1645 nla_put_failure:
1646 err = -ENOBUFS;
6c95e2a2 1647 free_msg:
41ade00f 1648 nlmsg_free(msg);
41ade00f
JB		 1649 return err;
1650}
1651
1652static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1653{
4c476991 1654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1655 struct key_parse key;
41ade00f 1656 int err;
4c476991 1657 struct net_device *dev = info->user_ptr[1];
41ade00f 1658
b9454e83
JB		 1659 err = nl80211_parse_key(info, &key);
1660 if (err)
1661 return err;
41ade00f 1662
b9454e83 1663 if (key.idx < 0)
41ade00f
JB		 1664 return -EINVAL;
1665
b9454e83
JB		 1666 /* only support setting default key */
1667 if (!key.def && !key.defmgmt)
41ade00f
JB		 1668 return -EINVAL;
1669
dbd2fd65 1670 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1671
dbd2fd65
JB		 1672 if (key.def) {
1673 if (!rdev->ops->set_default_key) {
1674 err = -EOPNOTSUPP;
1675 goto out;
1676 }
41ade00f 1677
dbd2fd65
JB		 1678 err = nl80211_key_allowed(dev->ieee80211_ptr);
1679 if (err)
1680 goto out;
1681
1682 if (!(rdev->wiphy.flags &
1683 WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) {
1684 if (!key.def_uni || !key.def_multi) {
1685 err = -EOPNOTSUPP;
1686 goto out;
1687 }
1688 }
1689
1690 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1691 key.def_uni, key.def_multi);
1692
1693 if (err)
1694 goto out;
fffd0934 1695
3d23e349 1696#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1697 dev->ieee80211_ptr->wext.default_key = key.idx;
1698#endif
1699 } else {
1700 if (key.def_uni || !key.def_multi) {
1701 err = -EINVAL;
1702 goto out;
1703 }
1704
1705 if (!rdev->ops->set_default_mgmt_key) {
1706 err = -EOPNOTSUPP;
1707 goto out;
1708 }
1709
1710 err = nl80211_key_allowed(dev->ieee80211_ptr);
1711 if (err)
1712 goto out;
1713
1714 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1715 dev, key.idx);
1716 if (err)
1717 goto out;
1718
1719#ifdef CONFIG_CFG80211_WEXT
1720 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1721#endif
dbd2fd65
JB		 1722 }
1723
1724 out:
fffd0934 1725 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1726
41ade00f
JB		 1727 return err;
1728}
1729
1730static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1731{
4c476991 1732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1733 int err;
4c476991 1734 struct net_device *dev = info->user_ptr[1];
b9454e83 1735 struct key_parse key;
e31b8213 1736 const u8 *mac_addr = NULL;
41ade00f 1737
b9454e83
JB		 1738 err = nl80211_parse_key(info, &key);
1739 if (err)
1740 return err;
41ade00f 1741
b9454e83 1742 if (!key.p.key)
41ade00f
JB		 1743 return -EINVAL;
1744
41ade00f
JB		 1745 if (info->attrs[NL80211_ATTR_MAC])
1746 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1747
e31b8213
JB		 1748 if (key.type == -1) {
1749 if (mac_addr)
1750 key.type = NL80211_KEYTYPE_PAIRWISE;
1751 else
1752 key.type = NL80211_KEYTYPE_GROUP;
1753 }
1754
1755 /* for now */
1756 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1757 key.type != NL80211_KEYTYPE_GROUP)
1758 return -EINVAL;
1759
4c476991
JB		 1760 if (!rdev->ops->add_key)
1761 return -EOPNOTSUPP;
25e47c18 1762
e31b8213
JB		 1763 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1764 key.type == NL80211_KEYTYPE_PAIRWISE,
1765 mac_addr))
4c476991 1766 return -EINVAL;
41ade00f 1767
fffd0934
JB		 1768 wdev_lock(dev->ieee80211_ptr);
1769 err = nl80211_key_allowed(dev->ieee80211_ptr);
1770 if (!err)
1771 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1772 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1773 mac_addr, &key.p);
1774 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1775
41ade00f
JB		 1776 return err;
1777}
1778
1779static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1780{
4c476991 1781 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1782 int err;
4c476991 1783 struct net_device *dev = info->user_ptr[1];
41ade00f 1784 u8 *mac_addr = NULL;
b9454e83 1785 struct key_parse key;
41ade00f 1786
b9454e83
JB		 1787 err = nl80211_parse_key(info, &key);
1788 if (err)
1789 return err;
41ade00f
JB		 1790
1791 if (info->attrs[NL80211_ATTR_MAC])
1792 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1793
e31b8213
JB		 1794 if (key.type == -1) {
1795 if (mac_addr)
1796 key.type = NL80211_KEYTYPE_PAIRWISE;
1797 else
1798 key.type = NL80211_KEYTYPE_GROUP;
1799 }
1800
1801 /* for now */
1802 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1803 key.type != NL80211_KEYTYPE_GROUP)
1804 return -EINVAL;
1805
4c476991
JB		 1806 if (!rdev->ops->del_key)
1807 return -EOPNOTSUPP;
41ade00f 1808
fffd0934
JB		 1809 wdev_lock(dev->ieee80211_ptr);
1810 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1811
1812 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1813 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1814 err = -ENOENT;
1815
fffd0934 1816 if (!err)
e31b8213
JB		 1817 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1818 key.type == NL80211_KEYTYPE_PAIRWISE,
1819 mac_addr);
41ade00f 1820
3d23e349 1821#ifdef CONFIG_CFG80211_WEXT
08645126 1822 if (!err) {
b9454e83 1823 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1824 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1825 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1826 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1827 }
1828#endif
fffd0934 1829 wdev_unlock(dev->ieee80211_ptr);
08645126 1830
41ade00f
JB		 1831 return err;
1832}
1833
ed1b6cc7
JB		 1834static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1835{
1836 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1837 struct beacon_parameters *info);
4c476991
JB		 1838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1839 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1840 struct beacon_parameters params;
1841 int haveinfo = 0;
1842
f4a11bb0
JB		 1843 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1844 return -EINVAL;
1845
074ac8df 1846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1848 return -EOPNOTSUPP;
eec60b03 1849
ed1b6cc7
JB		 1850 switch (info->genlhdr->cmd) {
1851 case NL80211_CMD_NEW_BEACON:
1852 /* these are required for NEW_BEACON */
1853 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1854 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1855 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1856 return -EINVAL;
ed1b6cc7 1857
79c97e97 1858 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1859 break;
1860 case NL80211_CMD_SET_BEACON:
79c97e97 1861 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1862 break;
1863 default:
1864 WARN_ON(1);
4c476991 1865 return -EOPNOTSUPP;
ed1b6cc7
JB		 1866 }
1867
4c476991
JB		 1868 if (!call)
1869 return -EOPNOTSUPP;
ed1b6cc7
JB		 1870
1871 memset(&params, 0, sizeof(params));
1872
1873 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1874 params.interval =
1875 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1876 haveinfo = 1;
1877 }
1878
1879 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1880 params.dtim_period =
1881 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1882 haveinfo = 1;
1883 }
1884
1885 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1886 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1887 params.head_len =
1888 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1889 haveinfo = 1;
1890 }
1891
1892 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1893 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1894 params.tail_len =
1895 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1896 haveinfo = 1;
1897 }
1898
4c476991
JB		 1899 if (!haveinfo)
1900 return -EINVAL;
3b85875a 1901
4c476991 1902 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1903}
1904
1905static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991
JB		 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1909
4c476991
JB		 1910 if (!rdev->ops->del_beacon)
1911 return -EOPNOTSUPP;
ed1b6cc7 1912
074ac8df 1913 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1914 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1915 return -EOPNOTSUPP;
3b85875a 1916
4c476991 1917 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1918}
1919
5727ef1b
JB		 1920static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1921 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1922 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1923 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1924 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1925};
1926
eccb8e8f
JB		 1927static int parse_station_flags(struct genl_info *info,
1928 struct station_parameters *params)
5727ef1b
JB		 1929{
1930 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1931 struct nlattr *nla;
5727ef1b
JB		 1932 int flag;
1933
eccb8e8f
JB		 1934 /*
1935 * Try parsing the new attribute first so userspace
1936 * can specify both for older kernels.
1937 */
1938 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1939 if (nla) {
1940 struct nl80211_sta_flag_update *sta_flags;
1941
1942 sta_flags = nla_data(nla);
1943 params->sta_flags_mask = sta_flags->mask;
1944 params->sta_flags_set = sta_flags->set;
1945 if ((params->sta_flags_mask |
1946 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1947 return -EINVAL;
1948 return 0;
1949 }
1950
1951 /* if present, parse the old attribute */
5727ef1b 1952
eccb8e8f 1953 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1954 if (!nla)
1955 return 0;
1956
1957 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1958 nla, sta_flags_policy))
1959 return -EINVAL;
1960
eccb8e8f
JB		 1961 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1962 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1963
1964 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1965 if (flags[flag])
eccb8e8f 1966 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1967
1968 return 0;
1969}
1970
c8dcfd8a
FF		 1971static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
1972 int attr)
1973{
1974 struct nlattr *rate;
1975 u16 bitrate;
1976
1977 rate = nla_nest_start(msg, attr);
1978 if (!rate)
1979 goto nla_put_failure;
1980
1981 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1982 bitrate = cfg80211_calculate_bitrate(info);
1983 if (bitrate > 0)
1984 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
1985
1986 if (info->flags & RATE_INFO_FLAGS_MCS)
1987 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
1988 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1989 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1990 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
1991 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1992
1993 nla_nest_end(msg, rate);
1994 return true;
1995
1996nla_put_failure:
1997 return false;
1998}
1999
fd5b74dc
JB		 2000static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2001 int flags, struct net_device *dev,
98b62183 2002 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2003{
2004 void *hdr;
f4263c98 2005 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2006
2007 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2008 if (!hdr)
2009 return -1;
2010
2011 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2012 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2013
f5ea9120
JB		 2014 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2015
2ec600d6
LCC		 2016 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2017 if (!sinfoattr)
fd5b74dc 2018 goto nla_put_failure;
2ec600d6
LCC		 2019 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2020 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2021 sinfo->inactive_time);
2022 if (sinfo->filled & STATION_INFO_RX_BYTES)
2023 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2024 sinfo->rx_bytes);
2025 if (sinfo->filled & STATION_INFO_TX_BYTES)
2026 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2027 sinfo->tx_bytes);
2028 if (sinfo->filled & STATION_INFO_LLID)
2029 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2030 sinfo->llid);
2031 if (sinfo->filled & STATION_INFO_PLID)
2032 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2033 sinfo->plid);
2034 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2035 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2036 sinfo->plink_state);
420e7fab
HR		 2037 if (sinfo->filled & STATION_INFO_SIGNAL)
2038 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2039 sinfo->signal);
541a45a1
BR		 2040 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2041 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2042 sinfo->signal_avg);
420e7fab 2043 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2044 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2045 NL80211_STA_INFO_TX_BITRATE))
2046 goto nla_put_failure;
2047 }
2048 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2049 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2050 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2051 goto nla_put_failure;
420e7fab 2052 }
98c8a60a
JM		 2053 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2054 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2055 sinfo->rx_packets);
2056 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2057 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2058 sinfo->tx_packets);
b206b4ef
BR		 2059 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2060 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2061 sinfo->tx_retries);
2062 if (sinfo->filled & STATION_INFO_TX_FAILED)
2063 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2064 sinfo->tx_failed);
f4263c98
PS		 2065 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2066 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2067 if (!bss_param)
2068 goto nla_put_failure;
2069
2070 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2071 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2072 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2073 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2074 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2075 NLA_PUT_FLAG(msg,
2076 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2077 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2078 sinfo->bss_param.dtim_period);
2079 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2080 sinfo->bss_param.beacon_interval);
2081
2082 nla_nest_end(msg, bss_param);
2083 }
2ec600d6 2084 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 2085
2086 return genlmsg_end(msg, hdr);
2087
2088 nla_put_failure:
bc3ed28c
TG		 2089 genlmsg_cancel(msg, hdr);
2090 return -EMSGSIZE;
fd5b74dc
JB		 2091}
2092
2ec600d6 2093static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2094 struct netlink_callback *cb)
2ec600d6 2095{
2ec600d6
LCC		 2096 struct station_info sinfo;
2097 struct cfg80211_registered_device *dev;
bba95fef 2098 struct net_device *netdev;
2ec600d6 2099 u8 mac_addr[ETH_ALEN];
bba95fef 2100 int sta_idx = cb->args[1];
2ec600d6 2101 int err;
2ec600d6 2102
67748893
JB		 2103 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2104 if (err)
2105 return err;
bba95fef
JB		 2106
2107 if (!dev->ops->dump_station) {
eec60b03 2108 err = -EOPNOTSUPP;
bba95fef
JB		 2109 goto out_err;
2110 }
2111
bba95fef
JB		 2112 while (1) {
2113 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2114 mac_addr, &sinfo);
2115 if (err == -ENOENT)
2116 break;
2117 if (err)
3b85875a 2118 goto out_err;
bba95fef
JB		 2119
2120 if (nl80211_send_station(skb,
2121 NETLINK_CB(cb->skb).pid,
2122 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2123 netdev, mac_addr,
2124 &sinfo) < 0)
2125 goto out;
2126
2127 sta_idx++;
2128 }
2129
2130
2131 out:
2132 cb->args[1] = sta_idx;
2133 err = skb->len;
bba95fef 2134 out_err:
67748893 2135 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2136
2137 return err;
2ec600d6 2138}
fd5b74dc 2139
5727ef1b
JB		 2140static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2141{
4c476991
JB		 2142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2143 struct net_device *dev = info->user_ptr[1];
2ec600d6 2144 struct station_info sinfo;
fd5b74dc
JB		 2145 struct sk_buff *msg;
2146 u8 *mac_addr = NULL;
4c476991 2147 int err;
fd5b74dc 2148
2ec600d6 2149 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2150
2151 if (!info->attrs[NL80211_ATTR_MAC])
2152 return -EINVAL;
2153
2154 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2155
4c476991
JB		 2156 if (!rdev->ops->get_station)
2157 return -EOPNOTSUPP;
3b85875a 2158
4c476991 2159 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2160 if (err)
4c476991 2161 return err;
2ec600d6 2162
fd2120ca 2163 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2164 if (!msg)
4c476991 2165 return -ENOMEM;
fd5b74dc
JB		 2166
2167 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2168 dev, mac_addr, &sinfo) < 0) {
2169 nlmsg_free(msg);
2170 return -ENOBUFS;
2171 }
3b85875a 2172
4c476991 2173 return genlmsg_reply(msg, info);
5727ef1b
JB		 2174}
2175
2176/*
c258d2de 2177 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2178 */
463d0183 2179static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2180 struct cfg80211_registered_device *rdev,
2181 struct net_device **vlan)
2182{
463d0183 2183 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2184 *vlan = NULL;
2185
2186 if (vlanattr) {
463d0183
JB		 2187 *vlan = dev_get_by_index(genl_info_net(info),
2188 nla_get_u32(vlanattr));
5727ef1b
JB		 2189 if (!*vlan)
2190 return -ENODEV;
2191 if (!(*vlan)->ieee80211_ptr)
2192 return -EINVAL;
2193 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2194 return -EINVAL;
c258d2de
FF		 2195 if (!netif_running(*vlan))
2196 return -ENETDOWN;
5727ef1b
JB		 2197 }
2198 return 0;
2199}
2200
2201static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2202{
4c476991 2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2204 int err;
4c476991 2205 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2206 struct station_parameters params;
2207 u8 *mac_addr = NULL;
2208
2209 memset(&params, 0, sizeof(params));
2210
2211 params.listen_interval = -1;
2212
2213 if (info->attrs[NL80211_ATTR_STA_AID])
2214 return -EINVAL;
2215
2216 if (!info->attrs[NL80211_ATTR_MAC])
2217 return -EINVAL;
2218
2219 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2220
2221 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2222 params.supported_rates =
2223 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2224 params.supported_rates_len =
2225 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2226 }
2227
2228 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2229 params.listen_interval =
2230 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2231
36aedc90
JM		 2232 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2233 params.ht_capa =
2234 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2235
eccb8e8f 2236 if (parse_station_flags(info, &params))
5727ef1b
JB		 2237 return -EINVAL;
2238
2ec600d6
LCC		 2239 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2240 params.plink_action =
2241 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2242
463d0183 2243 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2244 if (err)
034d655e 2245 goto out;
a97f4424
JB		 2246
2247 /* validate settings */
2248 err = 0;
2249
2250 switch (dev->ieee80211_ptr->iftype) {
2251 case NL80211_IFTYPE_AP:
2252 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2253 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2254 /* disallow mesh-specific things */
2255 if (params.plink_action)
2256 err = -EINVAL;
2257 break;
074ac8df 2258 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2259 case NL80211_IFTYPE_STATION:
2260 /* disallow everything but AUTHORIZED flag */
2261 if (params.plink_action)
2262 err = -EINVAL;
2263 if (params.vlan)
2264 err = -EINVAL;
2265 if (params.supported_rates)
2266 err = -EINVAL;
2267 if (params.ht_capa)
2268 err = -EINVAL;
2269 if (params.listen_interval >= 0)
2270 err = -EINVAL;
2271 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2272 err = -EINVAL;
2273 break;
2274 case NL80211_IFTYPE_MESH_POINT:
2275 /* disallow things mesh doesn't support */
2276 if (params.vlan)
2277 err = -EINVAL;
2278 if (params.ht_capa)
2279 err = -EINVAL;
2280 if (params.listen_interval >= 0)
2281 err = -EINVAL;
2282 if (params.supported_rates)
2283 err = -EINVAL;
2284 if (params.sta_flags_mask)
2285 err = -EINVAL;
2286 break;
2287 default:
2288 err = -EINVAL;
034d655e
JB		 2289 }
2290
5727ef1b
JB		 2291 if (err)
2292 goto out;
2293
79c97e97 2294 if (!rdev->ops->change_station) {
5727ef1b
JB		 2295 err = -EOPNOTSUPP;
2296 goto out;
2297 }
2298
79c97e97 2299 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2300
2301 out:
2302 if (params.vlan)
2303 dev_put(params.vlan);
3b85875a 2304
5727ef1b
JB		 2305 return err;
2306}
2307
2308static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2309{
4c476991 2310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2311 int err;
4c476991 2312 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2313 struct station_parameters params;
2314 u8 *mac_addr = NULL;
2315
2316 memset(&params, 0, sizeof(params));
2317
2318 if (!info->attrs[NL80211_ATTR_MAC])
2319 return -EINVAL;
2320
5727ef1b
JB		 2321 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2322 return -EINVAL;
2323
2324 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2325 return -EINVAL;
2326
0e956c13
TLSC		 2327 if (!info->attrs[NL80211_ATTR_STA_AID])
2328 return -EINVAL;
2329
5727ef1b
JB		 2330 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2331 params.supported_rates =
2332 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2333 params.supported_rates_len =
2334 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2335 params.listen_interval =
2336 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2337
0e956c13
TLSC		 2338 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2339 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2340 return -EINVAL;
51b50fbe 2341
36aedc90
JM		 2342 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2343 params.ht_capa =
2344 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2345
eccb8e8f 2346 if (parse_station_flags(info, &params))
5727ef1b
JB		 2347 return -EINVAL;
2348
0e956c13 2349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2352 return -EINVAL;
0e956c13 2353
463d0183 2354 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2355 if (err)
e80cf853 2356 goto out;
a97f4424
JB		 2357
2358 /* validate settings */
2359 err = 0;
2360
79c97e97 2361 if (!rdev->ops->add_station) {
5727ef1b
JB		 2362 err = -EOPNOTSUPP;
2363 goto out;
2364 }
2365
79c97e97 2366 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2367
2368 out:
2369 if (params.vlan)
2370 dev_put(params.vlan);
5727ef1b
JB		 2371 return err;
2372}
2373
2374static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2375{
4c476991
JB		 2376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2377 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2378 u8 *mac_addr = NULL;
2379
2380 if (info->attrs[NL80211_ATTR_MAC])
2381 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2382
e80cf853 2383 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2384 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2385 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2386 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2387 return -EINVAL;
5727ef1b 2388
4c476991
JB		 2389 if (!rdev->ops->del_station)
2390 return -EOPNOTSUPP;
3b85875a 2391
4c476991 2392 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2393}
2394
2ec600d6
LCC		 2395static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2396 int flags, struct net_device *dev,
2397 u8 *dst, u8 *next_hop,
2398 struct mpath_info *pinfo)
2399{
2400 void *hdr;
2401 struct nlattr *pinfoattr;
2402
2403 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2404 if (!hdr)
2405 return -1;
2406
2407 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2408 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2409 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2410
f5ea9120
JB		 2411 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2412
2ec600d6
LCC		 2413 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2414 if (!pinfoattr)
2415 goto nla_put_failure;
2416 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2417 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2418 pinfo->frame_qlen);
d19b3bf6
RP		 2419 if (pinfo->filled & MPATH_INFO_SN)
2420 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2421 pinfo->sn);
2ec600d6
LCC		 2422 if (pinfo->filled & MPATH_INFO_METRIC)
2423 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2424 pinfo->metric);
2425 if (pinfo->filled & MPATH_INFO_EXPTIME)
2426 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2427 pinfo->exptime);
2428 if (pinfo->filled & MPATH_INFO_FLAGS)
2429 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2430 pinfo->flags);
2431 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2432 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2433 pinfo->discovery_timeout);
2434 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2435 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2436 pinfo->discovery_retries);
2437
2438 nla_nest_end(msg, pinfoattr);
2439
2440 return genlmsg_end(msg, hdr);
2441
2442 nla_put_failure:
bc3ed28c
TG		 2443 genlmsg_cancel(msg, hdr);
2444 return -EMSGSIZE;
2ec600d6
LCC		 2445}
2446
2447static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2448 struct netlink_callback *cb)
2ec600d6 2449{
2ec600d6
LCC		 2450 struct mpath_info pinfo;
2451 struct cfg80211_registered_device *dev;
bba95fef 2452 struct net_device *netdev;
2ec600d6
LCC		 2453 u8 dst[ETH_ALEN];
2454 u8 next_hop[ETH_ALEN];
bba95fef 2455 int path_idx = cb->args[1];
2ec600d6 2456 int err;
2ec600d6 2457
67748893
JB		 2458 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2459 if (err)
2460 return err;
bba95fef
JB		 2461
2462 if (!dev->ops->dump_mpath) {
eec60b03 2463 err = -EOPNOTSUPP;
bba95fef
JB		 2464 goto out_err;
2465 }
2466
eec60b03
JM		 2467 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2468 err = -EOPNOTSUPP;
0448b5fc 2469 goto out_err;
eec60b03
JM		 2470 }
2471
bba95fef
JB		 2472 while (1) {
2473 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2474 dst, next_hop, &pinfo);
2475 if (err == -ENOENT)
2ec600d6 2476 break;
bba95fef 2477 if (err)
3b85875a 2478 goto out_err;
2ec600d6 2479
bba95fef
JB		 2480 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2481 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2482 netdev, dst, next_hop,
2483 &pinfo) < 0)
2484 goto out;
2ec600d6 2485
bba95fef 2486 path_idx++;
2ec600d6 2487 }
2ec600d6 2488
2ec600d6 2489
bba95fef
JB		 2490 out:
2491 cb->args[1] = path_idx;
2492 err = skb->len;
bba95fef 2493 out_err:
67748893 2494 nl80211_finish_netdev_dump(dev);
bba95fef 2495 return err;
2ec600d6
LCC		 2496}
2497
2498static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2499{
4c476991 2500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2501 int err;
4c476991 2502 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2503 struct mpath_info pinfo;
2504 struct sk_buff *msg;
2505 u8 *dst = NULL;
2506 u8 next_hop[ETH_ALEN];
2507
2508 memset(&pinfo, 0, sizeof(pinfo));
2509
2510 if (!info->attrs[NL80211_ATTR_MAC])
2511 return -EINVAL;
2512
2513 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2514
4c476991
JB		 2515 if (!rdev->ops->get_mpath)
2516 return -EOPNOTSUPP;
2ec600d6 2517
4c476991
JB		 2518 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2519 return -EOPNOTSUPP;
eec60b03 2520
79c97e97 2521 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2522 if (err)
4c476991 2523 return err;
2ec600d6 2524
fd2120ca 2525 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2526 if (!msg)
4c476991 2527 return -ENOMEM;
2ec600d6
LCC		 2528
2529 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2530 dev, dst, next_hop, &pinfo) < 0) {
2531 nlmsg_free(msg);
2532 return -ENOBUFS;
2533 }
3b85875a 2534
4c476991 2535 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2536}
2537
2538static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2539{
4c476991
JB		 2540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2541 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2542 u8 *dst = NULL;
2543 u8 *next_hop = NULL;
2544
2545 if (!info->attrs[NL80211_ATTR_MAC])
2546 return -EINVAL;
2547
2548 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2549 return -EINVAL;
2550
2551 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2552 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2553
4c476991
JB		 2554 if (!rdev->ops->change_mpath)
2555 return -EOPNOTSUPP;
35a8efe1 2556
4c476991
JB		 2557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2558 return -EOPNOTSUPP;
2ec600d6 2559
4c476991 2560 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2561}
4c476991 2562
2ec600d6
LCC		 2563static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2564{
4c476991
JB		 2565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2566 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2567 u8 *dst = NULL;
2568 u8 *next_hop = NULL;
2569
2570 if (!info->attrs[NL80211_ATTR_MAC])
2571 return -EINVAL;
2572
2573 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2574 return -EINVAL;
2575
2576 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2577 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2578
4c476991
JB		 2579 if (!rdev->ops->add_mpath)
2580 return -EOPNOTSUPP;
35a8efe1 2581
4c476991
JB		 2582 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2583 return -EOPNOTSUPP;
2ec600d6 2584
4c476991 2585 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2586}
2587
2588static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2589{
4c476991
JB		 2590 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2591 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2592 u8 *dst = NULL;
2593
2594 if (info->attrs[NL80211_ATTR_MAC])
2595 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2596
4c476991
JB		 2597 if (!rdev->ops->del_mpath)
2598 return -EOPNOTSUPP;
3b85875a 2599
4c476991 2600 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2601}
2602
9f1ba906
JM		 2603static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2604{
4c476991
JB		 2605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2606 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2607 struct bss_parameters params;
2608
2609 memset(&params, 0, sizeof(params));
2610 /* default to not changing parameters */
2611 params.use_cts_prot = -1;
2612 params.use_short_preamble = -1;
2613 params.use_short_slot_time = -1;
fd8aaaf3 2614 params.ap_isolate = -1;
50b12f59 2615 params.ht_opmode = -1;
9f1ba906
JM		 2616
2617 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2618 params.use_cts_prot =
2619 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2620 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2621 params.use_short_preamble =
2622 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2623 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2624 params.use_short_slot_time =
2625 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2626 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2627 params.basic_rates =
2628 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2629 params.basic_rates_len =
2630 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2631 }
fd8aaaf3
FF		 2632 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2633 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2634 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2635 params.ht_opmode =
2636 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2637
4c476991
JB		 2638 if (!rdev->ops->change_bss)
2639 return -EOPNOTSUPP;
9f1ba906 2640
074ac8df 2641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2642 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2643 return -EOPNOTSUPP;
3b85875a 2644
4c476991 2645 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2646}
2647
b54452b0 2648static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2649 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2650 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2651 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2652 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2653 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2654 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2655};
2656
2657static int parse_reg_rule(struct nlattr *tb[],
2658 struct ieee80211_reg_rule *reg_rule)
2659{
2660 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2661 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2662
2663 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2664 return -EINVAL;
2665 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2666 return -EINVAL;
2667 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2668 return -EINVAL;
2669 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2670 return -EINVAL;
2671 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2672 return -EINVAL;
2673
2674 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2675
2676 freq_range->start_freq_khz =
2677 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2678 freq_range->end_freq_khz =
2679 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2680 freq_range->max_bandwidth_khz =
2681 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2682
2683 power_rule->max_eirp =
2684 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2685
2686 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2687 power_rule->max_antenna_gain =
2688 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2689
2690 return 0;
2691}
2692
2693static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2694{
2695 int r;
2696 char *data = NULL;
2697
80778f18
LR		 2698 /*
2699 * You should only get this when cfg80211 hasn't yet initialized
2700 * completely when built-in to the kernel right between the time
2701 * window between nl80211_init() and regulatory_init(), if that is
2702 * even possible.
2703 */
2704 mutex_lock(&cfg80211_mutex);
2705 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2706 mutex_unlock(&cfg80211_mutex);
2707 return -EINPROGRESS;
80778f18 2708 }
fe33eb39 2709 mutex_unlock(&cfg80211_mutex);
80778f18 2710
fe33eb39
LR		 2711 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2712 return -EINVAL;
b2e1b302
LR		 2713
2714 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2715
fe33eb39
LR		 2716 r = regulatory_hint_user(data);
2717
b2e1b302
LR		 2718 return r;
2719}
2720
24bdd9f4 2721static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 2722 struct genl_info *info)
93da9cc1 2723{
4c476991 2724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2725 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2726 struct wireless_dev *wdev = dev->ieee80211_ptr;
2727 struct mesh_config cur_params;
2728 int err = 0;
93da9cc1 2729 void *hdr;
2730 struct nlattr *pinfoattr;
2731 struct sk_buff *msg;
2732
29cbe68c
JB		 2733 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2734 return -EOPNOTSUPP;
2735
24bdd9f4 2736 if (!rdev->ops->get_mesh_config)
4c476991 2737 return -EOPNOTSUPP;
f3f92586 2738
29cbe68c
JB		 2739 wdev_lock(wdev);
2740 /* If not connected, get default parameters */
2741 if (!wdev->mesh_id_len)
2742 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2743 else
24bdd9f4 2744 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2745 &cur_params);
2746 wdev_unlock(wdev);
2747
93da9cc1 2748 if (err)
4c476991 2749 return err;
93da9cc1 2750
2751 /* Draw up a netlink message to send back */
fd2120ca 2752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2753 if (!msg)
2754 return -ENOMEM;
93da9cc1 2755 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 2756 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 2757 if (!hdr)
efe1cf0c 2758 goto out;
24bdd9f4 2759 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 2760 if (!pinfoattr)
2761 goto nla_put_failure;
2762 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2763 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2764 cur_params.dot11MeshRetryTimeout);
2765 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2766 cur_params.dot11MeshConfirmTimeout);
2767 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2768 cur_params.dot11MeshHoldingTimeout);
2769 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2770 cur_params.dot11MeshMaxPeerLinks);
2771 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2772 cur_params.dot11MeshMaxRetries);
2773 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2774 cur_params.dot11MeshTTL);
45904f21
JC		 2775 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2776 cur_params.element_ttl);
93da9cc1 2777 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2778 cur_params.auto_open_plinks);
2779 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2780 cur_params.dot11MeshHWMPmaxPREQretries);
2781 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2782 cur_params.path_refresh_time);
2783 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2784 cur_params.min_discovery_timeout);
2785 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2786 cur_params.dot11MeshHWMPactivePathTimeout);
2787 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2788 cur_params.dot11MeshHWMPpreqMinInterval);
2789 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2790 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2791 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2792 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2793 nla_nest_end(msg, pinfoattr);
2794 genlmsg_end(msg, hdr);
4c476991 2795 return genlmsg_reply(msg, info);
93da9cc1 2796
3b85875a 2797 nla_put_failure:
93da9cc1 2798 genlmsg_cancel(msg, hdr);
efe1cf0c 2799 out:
d080e275 2800 nlmsg_free(msg);
4c476991 2801 return -ENOBUFS;
93da9cc1 2802}
2803
b54452b0 2804static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2805 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2806 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2807 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2808 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2809 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2810 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2811 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2812 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2813
2814 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2815 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2816 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2817 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2818 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2819 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2820};
2821
c80d545d
JC		 2822static const struct nla_policy
2823 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2824 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2825 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
581a8b0f 2826 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d
JC		 2827 .len = IEEE80211_MAX_DATA_LEN },
2828};
2829
24bdd9f4 2830static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 2831 struct mesh_config *cfg,
2832 u32 *mask_out)
93da9cc1 2833{
93da9cc1 2834 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2835 u32 mask = 0;
93da9cc1 2836
bd90fdcc
JB		 2837#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2838do {\
2839 if (table[attr_num]) {\
2840 cfg->param = nla_fn(table[attr_num]); \
2841 mask |= (1 << (attr_num - 1)); \
2842 } \
2843} while (0);\
2844
2845
24bdd9f4 2846 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 2847 return -EINVAL;
2848 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 2849 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 2850 nl80211_meshconf_params_policy))
93da9cc1 2851 return -EINVAL;
2852
93da9cc1 2853 /* This makes sure that there aren't more than 32 mesh config
2854 * parameters (otherwise our bitfield scheme would not work.) */
2855 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2856
2857 /* Fill in the params struct */
93da9cc1 2858 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2859 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2860 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2861 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2863 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2865 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2867 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2869 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 2870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
2871 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 2872 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2873 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2874 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2875 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2876 nla_get_u8);
2877 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2878 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2880 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2881 nla_get_u16);
2882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2883 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2884 nla_get_u32);
2885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2886 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2887 nla_get_u16);
2888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2889 dot11MeshHWMPnetDiameterTraversalTime,
2890 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2891 nla_get_u16);
63c5723b
RP		 2892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2893 dot11MeshHWMPRootMode, mask,
2894 NL80211_MESHCONF_HWMP_ROOTMODE,
2895 nla_get_u8);
bd90fdcc
JB		 2896 if (mask_out)
2897 *mask_out = mask;
c80d545d 2898
bd90fdcc
JB		 2899 return 0;
2900
2901#undef FILL_IN_MESH_PARAM_IF_SET
2902}
2903
c80d545d
JC		 2904static int nl80211_parse_mesh_setup(struct genl_info *info,
2905 struct mesh_setup *setup)
2906{
2907 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
2908
2909 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
2910 return -EINVAL;
2911 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
2912 info->attrs[NL80211_ATTR_MESH_SETUP],
2913 nl80211_mesh_setup_params_policy))
2914 return -EINVAL;
2915
2916 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
2917 setup->path_sel_proto =
2918 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
2919 IEEE80211_PATH_PROTOCOL_VENDOR :
2920 IEEE80211_PATH_PROTOCOL_HWMP;
2921
2922 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
2923 setup->path_metric =
2924 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
2925 IEEE80211_PATH_METRIC_VENDOR :
2926 IEEE80211_PATH_METRIC_AIRTIME;
2927
581a8b0f
JC		 2928
2929 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 2930 struct nlattr *ieattr =
581a8b0f 2931 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 2932 if (!is_valid_ie_attr(ieattr))
2933 return -EINVAL;
581a8b0f
JC		 2934 setup->ie = nla_data(ieattr);
2935 setup->ie_len = nla_len(ieattr);
c80d545d
JC		 2936 }
2937
2938 return 0;
2939}
2940
24bdd9f4 2941static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 2942 struct genl_info *info)
bd90fdcc
JB		 2943{
2944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2945 struct net_device *dev = info->user_ptr[1];
29cbe68c 2946 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 2947 struct mesh_config cfg;
2948 u32 mask;
2949 int err;
2950
29cbe68c
JB		 2951 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2952 return -EOPNOTSUPP;
2953
24bdd9f4 2954 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 2955 return -EOPNOTSUPP;
2956
24bdd9f4 2957 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 2958 if (err)
2959 return err;
2960
29cbe68c
JB		 2961 wdev_lock(wdev);
2962 if (!wdev->mesh_id_len)
2963 err = -ENOLINK;
2964
2965 if (!err)
24bdd9f4 2966 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2967 mask, &cfg);
2968
2969 wdev_unlock(wdev);
2970
2971 return err;
93da9cc1 2972}
2973
f130347c
LR		 2974static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2975{
2976 struct sk_buff *msg;
2977 void *hdr = NULL;
2978 struct nlattr *nl_reg_rules;
2979 unsigned int i;
2980 int err = -EINVAL;
2981
a1794390 2982 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2983
2984 if (!cfg80211_regdomain)
2985 goto out;
2986
fd2120ca 2987 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2988 if (!msg) {
2989 err = -ENOBUFS;
2990 goto out;
2991 }
2992
2993 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2994 NL80211_CMD_GET_REG);
2995 if (!hdr)
efe1cf0c 2996 goto put_failure;
f130347c
LR		 2997
2998 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2999 cfg80211_regdomain->alpha2);
3000
3001 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3002 if (!nl_reg_rules)
3003 goto nla_put_failure;
3004
3005 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3006 struct nlattr *nl_reg_rule;
3007 const struct ieee80211_reg_rule *reg_rule;
3008 const struct ieee80211_freq_range *freq_range;
3009 const struct ieee80211_power_rule *power_rule;
3010
3011 reg_rule = &cfg80211_regdomain->reg_rules[i];
3012 freq_range = &reg_rule->freq_range;
3013 power_rule = &reg_rule->power_rule;
3014
3015 nl_reg_rule = nla_nest_start(msg, i);
3016 if (!nl_reg_rule)
3017 goto nla_put_failure;
3018
3019 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3020 reg_rule->flags);
3021 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3022 freq_range->start_freq_khz);
3023 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3024 freq_range->end_freq_khz);
3025 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3026 freq_range->max_bandwidth_khz);
3027 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3028 power_rule->max_antenna_gain);
3029 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3030 power_rule->max_eirp);
3031
3032 nla_nest_end(msg, nl_reg_rule);
3033 }
3034
3035 nla_nest_end(msg, nl_reg_rules);
3036
3037 genlmsg_end(msg, hdr);
134e6375 3038 err = genlmsg_reply(msg, info);
f130347c
LR		 3039 goto out;
3040
3041nla_put_failure:
3042 genlmsg_cancel(msg, hdr);
efe1cf0c 3043put_failure:
d080e275 3044 nlmsg_free(msg);
f130347c
LR		 3045 err = -EMSGSIZE;
3046out:
a1794390 3047 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3048 return err;
3049}
3050
b2e1b302
LR		 3051static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3052{
3053 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3054 struct nlattr *nl_reg_rule;
3055 char *alpha2 = NULL;
3056 int rem_reg_rules = 0, r = 0;
3057 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3058 struct ieee80211_regdomain *rd = NULL;
3059
3060 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3061 return -EINVAL;
3062
3063 if (!info->attrs[NL80211_ATTR_REG_RULES])
3064 return -EINVAL;
3065
3066 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3067
3068 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3069 rem_reg_rules) {
3070 num_rules++;
3071 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3072 return -EINVAL;
b2e1b302
LR		 3073 }
3074
61405e97
LR		 3075 mutex_lock(&cfg80211_mutex);
3076
d0e18f83
LR		 3077 if (!reg_is_valid_request(alpha2)) {
3078 r = -EINVAL;
3079 goto bad_reg;
3080 }
b2e1b302
LR		 3081
3082 size_of_regd = sizeof(struct ieee80211_regdomain) +
3083 (num_rules * sizeof(struct ieee80211_reg_rule));
3084
3085 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3086 if (!rd) {
3087 r = -ENOMEM;
3088 goto bad_reg;
3089 }
b2e1b302
LR		 3090
3091 rd->n_reg_rules = num_rules;
3092 rd->alpha2[0] = alpha2[0];
3093 rd->alpha2[1] = alpha2[1];
3094
3095 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3096 rem_reg_rules) {
3097 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3098 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3099 reg_rule_policy);
3100 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3101 if (r)
3102 goto bad_reg;
3103
3104 rule_idx++;
3105
d0e18f83
LR		 3106 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3107 r = -EINVAL;
b2e1b302 3108 goto bad_reg;
d0e18f83 3109 }
b2e1b302
LR		 3110 }
3111
3112 BUG_ON(rule_idx != num_rules);
3113
b2e1b302 3114 r = set_regdom(rd);
61405e97 3115
a1794390 3116 mutex_unlock(&cfg80211_mutex);
d0e18f83 3117
b2e1b302
LR		 3118 return r;
3119
d2372b31 3120 bad_reg:
61405e97 3121 mutex_unlock(&cfg80211_mutex);
b2e1b302 3122 kfree(rd);
d0e18f83 3123 return r;
b2e1b302
LR		 3124}
3125
83f5e2cf
JB		 3126static int validate_scan_freqs(struct nlattr *freqs)
3127{
3128 struct nlattr *attr1, *attr2;
3129 int n_channels = 0, tmp1, tmp2;
3130
3131 nla_for_each_nested(attr1, freqs, tmp1) {
3132 n_channels++;
3133 /*
3134 * Some hardware has a limited channel list for
3135 * scanning, and it is pretty much nonsensical
3136 * to scan for a channel twice, so disallow that
3137 * and don't require drivers to check that the
3138 * channel list they get isn't longer than what
3139 * they can scan, as long as they can scan all
3140 * the channels they registered at once.
3141 */
3142 nla_for_each_nested(attr2, freqs, tmp2)
3143 if (attr1 != attr2 &&
3144 nla_get_u32(attr1) == nla_get_u32(attr2))
3145 return 0;
3146 }
3147
3148 return n_channels;
3149}
3150
2a519311
JB		 3151static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3152{
4c476991
JB		 3153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3154 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 3155 struct cfg80211_scan_request *request;
3156 struct cfg80211_ssid *ssid;
3157 struct ieee80211_channel *channel;
3158 struct nlattr *attr;
3159 struct wiphy *wiphy;
83f5e2cf 3160 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 3161 enum ieee80211_band band;
70692ad2 3162 size_t ie_len;
2a519311 3163
f4a11bb0
JB		 3164 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3165 return -EINVAL;
3166
79c97e97 3167 wiphy = &rdev->wiphy;
2a519311 3168
4c476991
JB		 3169 if (!rdev->ops->scan)
3170 return -EOPNOTSUPP;
2a519311 3171
4c476991
JB		 3172 if (rdev->scan_req)
3173 return -EBUSY;
2a519311
JB		 3174
3175 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3176 n_channels = validate_scan_freqs(
3177 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3178 if (!n_channels)
3179 return -EINVAL;
2a519311 3180 } else {
83f5e2cf
JB		 3181 n_channels = 0;
3182
2a519311
JB		 3183 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3184 if (wiphy->bands[band])
3185 n_channels += wiphy->bands[band]->n_channels;
3186 }
3187
3188 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3189 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3190 n_ssids++;
3191
4c476991
JB		 3192 if (n_ssids > wiphy->max_scan_ssids)
3193 return -EINVAL;
2a519311 3194
70692ad2
JM		 3195 if (info->attrs[NL80211_ATTR_IE])
3196 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3197 else
3198 ie_len = 0;
3199
4c476991
JB		 3200 if (ie_len > wiphy->max_scan_ie_len)
3201 return -EINVAL;
18a83659 3202
2a519311
JB		 3203 request = kzalloc(sizeof(*request)
3204 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3205 + sizeof(channel) * n_channels
3206 + ie_len, GFP_KERNEL);
4c476991
JB		 3207 if (!request)
3208 return -ENOMEM;
2a519311 3209
2a519311 3210 if (n_ssids)
5ba63533 3211 request->ssids = (void *)&request->channels[n_channels];
2a519311 3212 request->n_ssids = n_ssids;
70692ad2
JM		 3213 if (ie_len) {
3214 if (request->ssids)
3215 request->ie = (void *)(request->ssids + n_ssids);
3216 else
3217 request->ie = (void *)(request->channels + n_channels);
3218 }
2a519311 3219
584991dc 3220 i = 0;
2a519311
JB		 3221 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3222 /* user specified, bail out if channel not found */
2a519311 3223 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3224 struct ieee80211_channel *chan;
3225
3226 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3227
3228 if (!chan) {
2a519311
JB		 3229 err = -EINVAL;
3230 goto out_free;
3231 }
584991dc
JB		 3232
3233 /* ignore disabled channels */
3234 if (chan->flags & IEEE80211_CHAN_DISABLED)
3235 continue;
3236
3237 request->channels[i] = chan;
2a519311
JB		 3238 i++;
3239 }
3240 } else {
3241 /* all channels */
2a519311
JB		 3242 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3243 int j;
3244 if (!wiphy->bands[band])
3245 continue;
3246 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3247 struct ieee80211_channel *chan;
3248
3249 chan = &wiphy->bands[band]->channels[j];
3250
3251 if (chan->flags & IEEE80211_CHAN_DISABLED)
3252 continue;
3253
3254 request->channels[i] = chan;
2a519311
JB		 3255 i++;
3256 }
3257 }
3258 }
3259
584991dc
JB		 3260 if (!i) {
3261 err = -EINVAL;
3262 goto out_free;
3263 }
3264
3265 request->n_channels = i;
3266
2a519311
JB		 3267 i = 0;
3268 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3269 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3270 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3271 err = -EINVAL;
3272 goto out_free;
3273 }
3274 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3275 request->ssids[i].ssid_len = nla_len(attr);
3276 i++;
3277 }
3278 }
3279
70692ad2
JM		 3280 if (info->attrs[NL80211_ATTR_IE]) {
3281 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3282 memcpy((void *)request->ie,
3283 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3284 request->ie_len);
3285 }
3286
463d0183 3287 request->dev = dev;
79c97e97 3288 request->wiphy = &rdev->wiphy;
2a519311 3289
79c97e97
JB		 3290 rdev->scan_req = request;
3291 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3292
463d0183 3293 if (!err) {
79c97e97 3294 nl80211_send_scan_start(rdev, dev);
463d0183 3295 dev_hold(dev);
4c476991 3296 } else {
2a519311 3297 out_free:
79c97e97 3298 rdev->scan_req = NULL;
2a519311
JB		 3299 kfree(request);
3300 }
3b85875a 3301
2a519311
JB		 3302 return err;
3303}
3304
3305static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3306 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3307 struct wireless_dev *wdev,
3308 struct cfg80211_internal_bss *intbss)
2a519311 3309{
48ab905d 3310 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3311 void *hdr;
3312 struct nlattr *bss;
48ab905d
JB		 3313 int i;
3314
3315 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3316
3317 hdr = nl80211hdr_put(msg, pid, seq, flags,
3318 NL80211_CMD_NEW_SCAN_RESULTS);
3319 if (!hdr)
3320 return -1;
3321
f5ea9120 3322 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3323 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3324
3325 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3326 if (!bss)
3327 goto nla_put_failure;
3328 if (!is_zero_ether_addr(res->bssid))
3329 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3330 if (res->information_elements && res->len_information_elements)
3331 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3332 res->len_information_elements,
3333 res->information_elements);
34a6eddb
JM		 3334 if (res->beacon_ies && res->len_beacon_ies &&
3335 res->beacon_ies != res->information_elements)
3336 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3337 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3338 if (res->tsf)
3339 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3340 if (res->beacon_interval)
3341 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3342 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3343 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3344 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3345 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3346
77965c97 3347 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3348 case CFG80211_SIGNAL_TYPE_MBM:
3349 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3350 break;
3351 case CFG80211_SIGNAL_TYPE_UNSPEC:
3352 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3353 break;
3354 default:
3355 break;
3356 }
3357
48ab905d 3358 switch (wdev->iftype) {
074ac8df 3359 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3360 case NL80211_IFTYPE_STATION:
3361 if (intbss == wdev->current_bss)
3362 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3363 NL80211_BSS_STATUS_ASSOCIATED);
3364 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3365 if (intbss != wdev->auth_bsses[i])
3366 continue;
3367 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3368 NL80211_BSS_STATUS_AUTHENTICATED);
3369 break;
3370 }
3371 break;
3372 case NL80211_IFTYPE_ADHOC:
3373 if (intbss == wdev->current_bss)
3374 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3375 NL80211_BSS_STATUS_IBSS_JOINED);
3376 break;
3377 default:
3378 break;
3379 }
3380
2a519311
JB		 3381 nla_nest_end(msg, bss);
3382
3383 return genlmsg_end(msg, hdr);
3384
3385 nla_put_failure:
3386 genlmsg_cancel(msg, hdr);
3387 return -EMSGSIZE;
3388}
3389
3390static int nl80211_dump_scan(struct sk_buff *skb,
3391 struct netlink_callback *cb)
3392{
48ab905d
JB		 3393 struct cfg80211_registered_device *rdev;
3394 struct net_device *dev;
2a519311 3395 struct cfg80211_internal_bss *scan;
48ab905d 3396 struct wireless_dev *wdev;
2a519311
JB		 3397 int start = cb->args[1], idx = 0;
3398 int err;
3399
67748893
JB		 3400 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3401 if (err)
3402 return err;
2a519311 3403
48ab905d 3404 wdev = dev->ieee80211_ptr;
2a519311 3405
48ab905d
JB		 3406 wdev_lock(wdev);
3407 spin_lock_bh(&rdev->bss_lock);
3408 cfg80211_bss_expire(rdev);
3409
3410 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3411 if (++idx <= start)
3412 continue;
3413 if (nl80211_send_bss(skb,
3414 NETLINK_CB(cb->skb).pid,
3415 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3416 rdev, wdev, scan) < 0) {
2a519311 3417 idx--;
67748893 3418 break;
2a519311
JB		 3419 }
3420 }
3421
48ab905d
JB		 3422 spin_unlock_bh(&rdev->bss_lock);
3423 wdev_unlock(wdev);
2a519311
JB		 3424
3425 cb->args[1] = idx;
67748893 3426 nl80211_finish_netdev_dump(rdev);
2a519311 3427
67748893 3428 return skb->len;
2a519311
JB		 3429}
3430
61fa713c
HS		 3431static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3432 int flags, struct net_device *dev,
3433 struct survey_info *survey)
3434{
3435 void *hdr;
3436 struct nlattr *infoattr;
3437
3438 /* Survey without a channel doesn't make sense */
3439 if (!survey->channel)
3440 return -EINVAL;
3441
3442 hdr = nl80211hdr_put(msg, pid, seq, flags,
3443 NL80211_CMD_NEW_SURVEY_RESULTS);
3444 if (!hdr)
3445 return -ENOMEM;
3446
3447 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3448
3449 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3450 if (!infoattr)
3451 goto nla_put_failure;
3452
3453 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3454 survey->channel->center_freq);
3455 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3456 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3457 survey->noise);
17e5a808
FF		 3458 if (survey->filled & SURVEY_INFO_IN_USE)
3459 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3460 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3461 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3462 survey->channel_time);
3463 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3464 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3465 survey->channel_time_busy);
3466 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3467 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3468 survey->channel_time_ext_busy);
3469 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3470 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3471 survey->channel_time_rx);
3472 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3473 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3474 survey->channel_time_tx);
61fa713c
HS		 3475
3476 nla_nest_end(msg, infoattr);
3477
3478 return genlmsg_end(msg, hdr);
3479
3480 nla_put_failure:
3481 genlmsg_cancel(msg, hdr);
3482 return -EMSGSIZE;
3483}
3484
3485static int nl80211_dump_survey(struct sk_buff *skb,
3486 struct netlink_callback *cb)
3487{
3488 struct survey_info survey;
3489 struct cfg80211_registered_device *dev;
3490 struct net_device *netdev;
61fa713c
HS		 3491 int survey_idx = cb->args[1];
3492 int res;
3493
67748893
JB		 3494 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3495 if (res)
3496 return res;
61fa713c
HS		 3497
3498 if (!dev->ops->dump_survey) {
3499 res = -EOPNOTSUPP;
3500 goto out_err;
3501 }
3502
3503 while (1) {
3504 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3505 &survey);
3506 if (res == -ENOENT)
3507 break;
3508 if (res)
3509 goto out_err;
3510
3511 if (nl80211_send_survey(skb,
3512 NETLINK_CB(cb->skb).pid,
3513 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3514 netdev,
3515 &survey) < 0)
3516 goto out;
3517 survey_idx++;
3518 }
3519
3520 out:
3521 cb->args[1] = survey_idx;
3522 res = skb->len;
3523 out_err:
67748893 3524 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3525 return res;
3526}
3527
255e737e
JM		 3528static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3529{
b23aa676
SO		 3530 return auth_type <= NL80211_AUTHTYPE_MAX;
3531}
3532
3533static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3534{
3535 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3536 NL80211_WPA_VERSION_2));
3537}
3538
3539static bool nl80211_valid_akm_suite(u32 akm)
3540{
3541 return akm == WLAN_AKM_SUITE_8021X ||
3542 akm == WLAN_AKM_SUITE_PSK;
3543}
3544
3545static bool nl80211_valid_cipher_suite(u32 cipher)
3546{
3547 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3548 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3549 cipher == WLAN_CIPHER_SUITE_TKIP ||
3550 cipher == WLAN_CIPHER_SUITE_CCMP ||
3551 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3552}
3553
b23aa676 3554
636a5d36
JM		 3555static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3556{
4c476991
JB		 3557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3558 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3559 struct ieee80211_channel *chan;
3560 const u8 *bssid, *ssid, *ie = NULL;
3561 int err, ssid_len, ie_len = 0;
3562 enum nl80211_auth_type auth_type;
fffd0934 3563 struct key_parse key;
d5cdfacb 3564 bool local_state_change;
636a5d36 3565
f4a11bb0
JB		 3566 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3567 return -EINVAL;
3568
3569 if (!info->attrs[NL80211_ATTR_MAC])
3570 return -EINVAL;
3571
1778092e
JM		 3572 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3573 return -EINVAL;
3574
19957bb3
JB		 3575 if (!info->attrs[NL80211_ATTR_SSID])
3576 return -EINVAL;
3577
3578 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3579 return -EINVAL;
3580
fffd0934
JB		 3581 err = nl80211_parse_key(info, &key);
3582 if (err)
3583 return err;
3584
3585 if (key.idx >= 0) {
e31b8213
JB		 3586 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3587 return -EINVAL;
fffd0934
JB		 3588 if (!key.p.key || !key.p.key_len)
3589 return -EINVAL;
3590 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3591 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3592 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3593 key.p.key_len != WLAN_KEY_LEN_WEP104))
3594 return -EINVAL;
3595 if (key.idx > 4)
3596 return -EINVAL;
3597 } else {
3598 key.p.key_len = 0;
3599 key.p.key = NULL;
3600 }
3601
afea0b7a
JB		 3602 if (key.idx >= 0) {
3603 int i;
3604 bool ok = false;
3605 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3606 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3607 ok = true;
3608 break;
3609 }
3610 }
4c476991
JB		 3611 if (!ok)
3612 return -EINVAL;
afea0b7a
JB		 3613 }
3614
4c476991
JB		 3615 if (!rdev->ops->auth)
3616 return -EOPNOTSUPP;
636a5d36 3617
074ac8df 3618 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3619 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3620 return -EOPNOTSUPP;
eec60b03 3621
19957bb3 3622 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3623 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3624 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3625 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3626 return -EINVAL;
636a5d36 3627
19957bb3
JB		 3628 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3629 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3630
3631 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3632 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3633 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3634 }
3635
19957bb3 3636 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3637 if (!nl80211_valid_auth_type(auth_type))
3638 return -EINVAL;
636a5d36 3639
d5cdfacb
JM		 3640 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3641
4c476991
JB		 3642 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3643 ssid, ssid_len, ie, ie_len,
3644 key.p.key, key.p.key_len, key.idx,
3645 local_state_change);
636a5d36
JM		 3646}
3647
c0692b8f
JB		 3648static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3649 struct genl_info *info,
3dc27d25
JB		 3650 struct cfg80211_crypto_settings *settings,
3651 int cipher_limit)
b23aa676 3652{
c0b2bbd8
JB		 3653 memset(settings, 0, sizeof(*settings));
3654
b23aa676
SO		 3655 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3656
c0692b8f
JB		 3657 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3658 u16 proto;
3659 proto = nla_get_u16(
3660 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3661 settings->control_port_ethertype = cpu_to_be16(proto);
3662 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3663 proto != ETH_P_PAE)
3664 return -EINVAL;
3665 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3666 settings->control_port_no_encrypt = true;
3667 } else
3668 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3669
b23aa676
SO		 3670 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3671 void *data;
3672 int len, i;
3673
3674 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3675 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3676 settings->n_ciphers_pairwise = len / sizeof(u32);
3677
3678 if (len % sizeof(u32))
3679 return -EINVAL;
3680
3dc27d25 3681 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3682 return -EINVAL;
3683
3684 memcpy(settings->ciphers_pairwise, data, len);
3685
3686 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3687 if (!nl80211_valid_cipher_suite(
3688 settings->ciphers_pairwise[i]))
3689 return -EINVAL;
3690 }
3691
3692 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3693 settings->cipher_group =
3694 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3695 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3696 return -EINVAL;
3697 }
3698
3699 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3700 settings->wpa_versions =
3701 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3702 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3703 return -EINVAL;
3704 }
3705
3706 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3707 void *data;
3708 int len, i;
3709
3710 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3711 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3712 settings->n_akm_suites = len / sizeof(u32);
3713
3714 if (len % sizeof(u32))
3715 return -EINVAL;
3716
3717 memcpy(settings->akm_suites, data, len);
3718
3719 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3720 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3721 return -EINVAL;
3722 }
3723
3724 return 0;
3725}
3726
636a5d36
JM		 3727static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3728{
4c476991
JB		 3729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3730 struct net_device *dev = info->user_ptr[1];
19957bb3 3731 struct cfg80211_crypto_settings crypto;
f444de05 3732 struct ieee80211_channel *chan;
3e5d7649 3733 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3734 int err, ssid_len, ie_len = 0;
3735 bool use_mfp = false;
636a5d36 3736
f4a11bb0
JB		 3737 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3738 return -EINVAL;
3739
3740 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3741 !info->attrs[NL80211_ATTR_SSID] ||
3742 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3743 return -EINVAL;
3744
4c476991
JB		 3745 if (!rdev->ops->assoc)
3746 return -EOPNOTSUPP;
636a5d36 3747
074ac8df 3748 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3750 return -EOPNOTSUPP;
eec60b03 3751
19957bb3 3752 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3753
19957bb3
JB		 3754 chan = ieee80211_get_channel(&rdev->wiphy,
3755 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3756 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3757 return -EINVAL;
636a5d36 3758
19957bb3
JB		 3759 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3760 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3761
3762 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3763 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3764 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3765 }
3766
dc6382ce 3767 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3768 enum nl80211_mfp mfp =
dc6382ce 3769 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3770 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3771 use_mfp = true;
4c476991
JB		 3772 else if (mfp != NL80211_MFP_NO)
3773 return -EINVAL;
dc6382ce
JM		 3774 }
3775
3e5d7649
JB		 3776 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3777 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3778
c0692b8f 3779 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3780 if (!err)
3e5d7649
JB		 3781 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3782 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3783 &crypto);
636a5d36 3784
636a5d36
JM		 3785 return err;
3786}
3787
3788static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3789{
4c476991
JB		 3790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3791 struct net_device *dev = info->user_ptr[1];
19957bb3 3792 const u8 *ie = NULL, *bssid;
4c476991 3793 int ie_len = 0;
19957bb3 3794 u16 reason_code;
d5cdfacb 3795 bool local_state_change;
636a5d36 3796
f4a11bb0
JB		 3797 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3798 return -EINVAL;
3799
3800 if (!info->attrs[NL80211_ATTR_MAC])
3801 return -EINVAL;
3802
3803 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3804 return -EINVAL;
3805
4c476991
JB		 3806 if (!rdev->ops->deauth)
3807 return -EOPNOTSUPP;
636a5d36 3808
074ac8df 3809 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3810 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3811 return -EOPNOTSUPP;
eec60b03 3812
19957bb3 3813 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3814
19957bb3
JB		 3815 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3816 if (reason_code == 0) {
f4a11bb0 3817 /* Reason Code 0 is reserved */
4c476991 3818 return -EINVAL;
255e737e 3819 }
636a5d36
JM		 3820
3821 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3822 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3823 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3824 }
3825
d5cdfacb
JM		 3826 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3827
4c476991
JB		 3828 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3829 local_state_change);
636a5d36
JM		 3830}
3831
3832static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3833{
4c476991
JB		 3834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3835 struct net_device *dev = info->user_ptr[1];
19957bb3 3836 const u8 *ie = NULL, *bssid;
4c476991 3837 int ie_len = 0;
19957bb3 3838 u16 reason_code;
d5cdfacb 3839 bool local_state_change;
636a5d36 3840
f4a11bb0
JB		 3841 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3842 return -EINVAL;
3843
3844 if (!info->attrs[NL80211_ATTR_MAC])
3845 return -EINVAL;
3846
3847 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3848 return -EINVAL;
3849
4c476991
JB		 3850 if (!rdev->ops->disassoc)
3851 return -EOPNOTSUPP;
636a5d36 3852
074ac8df 3853 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3854 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3855 return -EOPNOTSUPP;
eec60b03 3856
19957bb3 3857 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3858
19957bb3
JB		 3859 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3860 if (reason_code == 0) {
f4a11bb0 3861 /* Reason Code 0 is reserved */
4c476991 3862 return -EINVAL;
255e737e 3863 }
636a5d36
JM		 3864
3865 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3866 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3867 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3868 }
3869
d5cdfacb
JM		 3870 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3871
4c476991
JB		 3872 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3873 local_state_change);
636a5d36
JM		 3874}
3875
dd5b4cc7
FF		 3876static bool
3877nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
3878 int mcast_rate[IEEE80211_NUM_BANDS],
3879 int rateval)
3880{
3881 struct wiphy *wiphy = &rdev->wiphy;
3882 bool found = false;
3883 int band, i;
3884
3885 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3886 struct ieee80211_supported_band *sband;
3887
3888 sband = wiphy->bands[band];
3889 if (!sband)
3890 continue;
3891
3892 for (i = 0; i < sband->n_bitrates; i++) {
3893 if (sband->bitrates[i].bitrate == rateval) {
3894 mcast_rate[band] = i + 1;
3895 found = true;
3896 break;
3897 }
3898 }
3899 }
3900
3901 return found;
3902}
3903
04a773ad
JB		 3904static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3905{
4c476991
JB		 3906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3907 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3908 struct cfg80211_ibss_params ibss;
3909 struct wiphy *wiphy;
fffd0934 3910 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3911 int err;
3912
8e30bc55
JB		 3913 memset(&ibss, 0, sizeof(ibss));
3914
04a773ad
JB		 3915 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3916 return -EINVAL;
3917
3918 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3919 !info->attrs[NL80211_ATTR_SSID] ||
3920 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3921 return -EINVAL;
3922
8e30bc55
JB		 3923 ibss.beacon_interval = 100;
3924
3925 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3926 ibss.beacon_interval =
3927 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3928 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3929 return -EINVAL;
3930 }
3931
4c476991
JB		 3932 if (!rdev->ops->join_ibss)
3933 return -EOPNOTSUPP;
04a773ad 3934
4c476991
JB		 3935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3936 return -EOPNOTSUPP;
04a773ad 3937
79c97e97 3938 wiphy = &rdev->wiphy;
04a773ad
JB		 3939
3940 if (info->attrs[NL80211_ATTR_MAC])
3941 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3942 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3943 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3944
3945 if (info->attrs[NL80211_ATTR_IE]) {
3946 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3947 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3948 }
3949
3950 ibss.channel = ieee80211_get_channel(wiphy,
3951 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3952 if (!ibss.channel ||
3953 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3954 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3955 return -EINVAL;
04a773ad
JB		 3956
3957 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3958 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3959
fbd2c8dc
TP		 3960 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3961 u8 *rates =
3962 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3963 int n_rates =
3964 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3965 struct ieee80211_supported_band *sband =
3966 wiphy->bands[ibss.channel->band];
3967 int i, j;
3968
4c476991
JB		 3969 if (n_rates == 0)
3970 return -EINVAL;
fbd2c8dc
TP		 3971
3972 for (i = 0; i < n_rates; i++) {
3973 int rate = (rates[i] & 0x7f) * 5;
3974 bool found = false;
3975
3976 for (j = 0; j < sband->n_bitrates; j++) {
3977 if (sband->bitrates[j].bitrate == rate) {
3978 found = true;
3979 ibss.basic_rates |= BIT(j);
3980 break;
3981 }
3982 }
4c476991
JB		 3983 if (!found)
3984 return -EINVAL;
fbd2c8dc 3985 }
fbd2c8dc 3986 }
dd5b4cc7
FF		 3987
3988 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
3989 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
3990 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
3991 return -EINVAL;
fbd2c8dc 3992
4c476991
JB		 3993 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3994 connkeys = nl80211_parse_connkeys(rdev,
3995 info->attrs[NL80211_ATTR_KEYS]);
3996 if (IS_ERR(connkeys))
3997 return PTR_ERR(connkeys);
3998 }
04a773ad 3999
4c476991 4000 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4001 if (err)
4002 kfree(connkeys);
04a773ad
JB		 4003 return err;
4004}
4005
4006static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4007{
4c476991
JB		 4008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4009 struct net_device *dev = info->user_ptr[1];
04a773ad 4010
4c476991
JB		 4011 if (!rdev->ops->leave_ibss)
4012 return -EOPNOTSUPP;
04a773ad 4013
4c476991
JB		 4014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4015 return -EOPNOTSUPP;
04a773ad 4016
4c476991 4017 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4018}
4019
aff89a9b
JB		 4020#ifdef CONFIG_NL80211_TESTMODE
4021static struct genl_multicast_group nl80211_testmode_mcgrp = {
4022 .name = "testmode",
4023};
4024
4025static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4026{
4c476991 4027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4028 int err;
4029
4030 if (!info->attrs[NL80211_ATTR_TESTDATA])
4031 return -EINVAL;
4032
aff89a9b
JB		 4033 err = -EOPNOTSUPP;
4034 if (rdev->ops->testmode_cmd) {
4035 rdev->testmode_info = info;
4036 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4037 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4038 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4039 rdev->testmode_info = NULL;
4040 }
4041
aff89a9b
JB		 4042 return err;
4043}
4044
4045static struct sk_buff *
4046__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4047 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4048{
4049 struct sk_buff *skb;
4050 void *hdr;
4051 struct nlattr *data;
4052
4053 skb = nlmsg_new(approxlen + 100, gfp);
4054 if (!skb)
4055 return NULL;
4056
4057 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4058 if (!hdr) {
4059 kfree_skb(skb);
4060 return NULL;
4061 }
4062
4063 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4064 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4065
4066 ((void **)skb->cb)[0] = rdev;
4067 ((void **)skb->cb)[1] = hdr;
4068 ((void **)skb->cb)[2] = data;
4069
4070 return skb;
4071
4072 nla_put_failure:
4073 kfree_skb(skb);
4074 return NULL;
4075}
4076
4077struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4078 int approxlen)
4079{
4080 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4081
4082 if (WARN_ON(!rdev->testmode_info))
4083 return NULL;
4084
4085 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4086 rdev->testmode_info->snd_pid,
4087 rdev->testmode_info->snd_seq,
4088 GFP_KERNEL);
4089}
4090EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4091
4092int cfg80211_testmode_reply(struct sk_buff *skb)
4093{
4094 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4095 void *hdr = ((void **)skb->cb)[1];
4096 struct nlattr *data = ((void **)skb->cb)[2];
4097
4098 if (WARN_ON(!rdev->testmode_info)) {
4099 kfree_skb(skb);
4100 return -EINVAL;
4101 }
4102
4103 nla_nest_end(skb, data);
4104 genlmsg_end(skb, hdr);
4105 return genlmsg_reply(skb, rdev->testmode_info);
4106}
4107EXPORT_SYMBOL(cfg80211_testmode_reply);
4108
4109struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4110 int approxlen, gfp_t gfp)
4111{
4112 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4113
4114 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4115}
4116EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4117
4118void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4119{
4120 void *hdr = ((void **)skb->cb)[1];
4121 struct nlattr *data = ((void **)skb->cb)[2];
4122
4123 nla_nest_end(skb, data);
4124 genlmsg_end(skb, hdr);
4125 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4126}
4127EXPORT_SYMBOL(cfg80211_testmode_event);
4128#endif
4129
b23aa676
SO		 4130static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4131{
4c476991
JB		 4132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4133 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4134 struct cfg80211_connect_params connect;
4135 struct wiphy *wiphy;
fffd0934 4136 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4137 int err;
4138
4139 memset(&connect, 0, sizeof(connect));
4140
4141 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4142 return -EINVAL;
4143
4144 if (!info->attrs[NL80211_ATTR_SSID] ||
4145 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4146 return -EINVAL;
4147
4148 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4149 connect.auth_type =
4150 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4151 if (!nl80211_valid_auth_type(connect.auth_type))
4152 return -EINVAL;
4153 } else
4154 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4155
4156 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4157
c0692b8f 4158 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4159 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4160 if (err)
4161 return err;
b23aa676 4162
074ac8df 4163 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4164 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4165 return -EOPNOTSUPP;
b23aa676 4166
79c97e97 4167 wiphy = &rdev->wiphy;
b23aa676 4168
b23aa676
SO		 4169 if (info->attrs[NL80211_ATTR_MAC])
4170 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4171 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4172 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4173
4174 if (info->attrs[NL80211_ATTR_IE]) {
4175 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4176 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4177 }
4178
4179 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4180 connect.channel =
4181 ieee80211_get_channel(wiphy,
4182 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4183 if (!connect.channel ||
4c476991
JB		 4184 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4185 return -EINVAL;
b23aa676
SO		 4186 }
4187
fffd0934
JB		 4188 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4189 connkeys = nl80211_parse_connkeys(rdev,
4190 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4191 if (IS_ERR(connkeys))
4192 return PTR_ERR(connkeys);
fffd0934
JB		 4193 }
4194
4195 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4196 if (err)
4197 kfree(connkeys);
b23aa676
SO		 4198 return err;
4199}
4200
4201static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4202{
4c476991
JB		 4203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4204 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4205 u16 reason;
4206
4207 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4208 reason = WLAN_REASON_DEAUTH_LEAVING;
4209 else
4210 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4211
4212 if (reason == 0)
4213 return -EINVAL;
4214
074ac8df 4215 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4216 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4217 return -EOPNOTSUPP;
b23aa676 4218
4c476991 4219 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4220}
4221
463d0183
JB		 4222static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4223{
4c476991 4224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4225 struct net *net;
4226 int err;
4227 u32 pid;
4228
4229 if (!info->attrs[NL80211_ATTR_PID])
4230 return -EINVAL;
4231
4232 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4233
463d0183 4234 net = get_net_ns_by_pid(pid);
4c476991
JB		 4235 if (IS_ERR(net))
4236 return PTR_ERR(net);
463d0183
JB		 4237
4238 err = 0;
4239
4240 /* check if anything to do */
4c476991
JB		 4241 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4242 err = cfg80211_switch_netns(rdev, net);
463d0183 4243
463d0183 4244 put_net(net);
463d0183
JB		 4245 return err;
4246}
4247
67fbb16b
SO		 4248static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4249{
4c476991 4250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4251 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4252 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4253 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4254 struct cfg80211_pmksa pmksa;
4255
4256 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4257
4258 if (!info->attrs[NL80211_ATTR_MAC])
4259 return -EINVAL;
4260
4261 if (!info->attrs[NL80211_ATTR_PMKID])
4262 return -EINVAL;
4263
67fbb16b
SO		 4264 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4265 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4266
074ac8df 4267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4269 return -EOPNOTSUPP;
67fbb16b
SO		 4270
4271 switch (info->genlhdr->cmd) {
4272 case NL80211_CMD_SET_PMKSA:
4273 rdev_ops = rdev->ops->set_pmksa;
4274 break;
4275 case NL80211_CMD_DEL_PMKSA:
4276 rdev_ops = rdev->ops->del_pmksa;
4277 break;
4278 default:
4279 WARN_ON(1);
4280 break;
4281 }
4282
4c476991
JB		 4283 if (!rdev_ops)
4284 return -EOPNOTSUPP;
67fbb16b 4285
4c476991 4286 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4287}
4288
4289static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4290{
4c476991
JB		 4291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4292 struct net_device *dev = info->user_ptr[1];
67fbb16b 4293
074ac8df 4294 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4296 return -EOPNOTSUPP;
67fbb16b 4297
4c476991
JB		 4298 if (!rdev->ops->flush_pmksa)
4299 return -EOPNOTSUPP;
67fbb16b 4300
4c476991 4301 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4302}
4303
9588bbd5
JM		 4304static int nl80211_remain_on_channel(struct sk_buff *skb,
4305 struct genl_info *info)
4306{
4c476991
JB		 4307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4308 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4309 struct ieee80211_channel *chan;
4310 struct sk_buff *msg;
4311 void *hdr;
4312 u64 cookie;
4313 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4314 u32 freq, duration;
4315 int err;
4316
4317 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4318 !info->attrs[NL80211_ATTR_DURATION])
4319 return -EINVAL;
4320
4321 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4322
4323 /*
4324 * We should be on that channel for at least one jiffie,
4325 * and more than 5 seconds seems excessive.
4326 */
a293911d
JB		 4327 if (!duration || !msecs_to_jiffies(duration) ||
4328 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4329 return -EINVAL;
4330
4c476991
JB		 4331 if (!rdev->ops->remain_on_channel)
4332 return -EOPNOTSUPP;
9588bbd5 4333
9588bbd5
JM		 4334 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4335 channel_type = nla_get_u32(
4336 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4337 if (channel_type != NL80211_CHAN_NO_HT &&
4338 channel_type != NL80211_CHAN_HT20 &&
4339 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4340 channel_type != NL80211_CHAN_HT40MINUS)
4341 return -EINVAL;
9588bbd5
JM		 4342 }
4343
4344 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4345 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4346 if (chan == NULL)
4347 return -EINVAL;
9588bbd5
JM		 4348
4349 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4350 if (!msg)
4351 return -ENOMEM;
9588bbd5
JM		 4352
4353 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4354 NL80211_CMD_REMAIN_ON_CHANNEL);
4355
4356 if (IS_ERR(hdr)) {
4357 err = PTR_ERR(hdr);
4358 goto free_msg;
4359 }
4360
4361 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4362 channel_type, duration, &cookie);
4363
4364 if (err)
4365 goto free_msg;
4366
4367 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4368
4369 genlmsg_end(msg, hdr);
4c476991
JB		 4370
4371 return genlmsg_reply(msg, info);
9588bbd5
JM		 4372
4373 nla_put_failure:
4374 err = -ENOBUFS;
4375 free_msg:
4376 nlmsg_free(msg);
9588bbd5
JM		 4377 return err;
4378}
4379
4380static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4381 struct genl_info *info)
4382{
4c476991
JB		 4383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4384 struct net_device *dev = info->user_ptr[1];
9588bbd5 4385 u64 cookie;
9588bbd5
JM		 4386
4387 if (!info->attrs[NL80211_ATTR_COOKIE])
4388 return -EINVAL;
4389
4c476991
JB		 4390 if (!rdev->ops->cancel_remain_on_channel)
4391 return -EOPNOTSUPP;
9588bbd5 4392
9588bbd5
JM		 4393 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4394
4c476991 4395 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4396}
4397
13ae75b1
JM		 4398static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4399 u8 *rates, u8 rates_len)
4400{
4401 u8 i;
4402 u32 mask = 0;
4403
4404 for (i = 0; i < rates_len; i++) {
4405 int rate = (rates[i] & 0x7f) * 5;
4406 int ridx;
4407 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4408 struct ieee80211_rate *srate =
4409 &sband->bitrates[ridx];
4410 if (rate == srate->bitrate) {
4411 mask |= 1 << ridx;
4412 break;
4413 }
4414 }
4415 if (ridx == sband->n_bitrates)
4416 return 0; /* rate not found */
4417 }
4418
4419 return mask;
4420}
4421
b54452b0 4422static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4423 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4424 .len = NL80211_MAX_SUPP_RATES },
4425};
4426
4427static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4428 struct genl_info *info)
4429{
4430 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4432 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4433 int rem, i;
4434 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4435 struct nlattr *tx_rates;
4436 struct ieee80211_supported_band *sband;
4437
4438 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4439 return -EINVAL;
4440
4c476991
JB		 4441 if (!rdev->ops->set_bitrate_mask)
4442 return -EOPNOTSUPP;
13ae75b1
JM		 4443
4444 memset(&mask, 0, sizeof(mask));
4445 /* Default to all rates enabled */
4446 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4447 sband = rdev->wiphy.bands[i];
4448 mask.control[i].legacy =
4449 sband ? (1 << sband->n_bitrates) - 1 : 0;
4450 }
4451
4452 /*
4453 * The nested attribute uses enum nl80211_band as the index. This maps
4454 * directly to the enum ieee80211_band values used in cfg80211.
4455 */
4456 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4457 {
4458 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4459 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4460 return -EINVAL;
13ae75b1 4461 sband = rdev->wiphy.bands[band];
4c476991
JB		 4462 if (sband == NULL)
4463 return -EINVAL;
13ae75b1
JM		 4464 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4465 nla_len(tx_rates), nl80211_txattr_policy);
4466 if (tb[NL80211_TXRATE_LEGACY]) {
4467 mask.control[band].legacy = rateset_to_mask(
4468 sband,
4469 nla_data(tb[NL80211_TXRATE_LEGACY]),
4470 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4471 if (mask.control[band].legacy == 0)
4472 return -EINVAL;
13ae75b1
JM		 4473 }
4474 }
4475
4c476991 4476 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4477}
4478
2e161f78 4479static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4480{
4c476991
JB		 4481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4482 struct net_device *dev = info->user_ptr[1];
2e161f78 4483 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4484
4485 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4486 return -EINVAL;
4487
2e161f78
JB		 4488 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4489 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4490
9d38d85d 4491 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4492 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4493 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4498 return -EOPNOTSUPP;
026331c4
JM		 4499
4500 /* not much point in registering if we can't reply */
4c476991
JB		 4501 if (!rdev->ops->mgmt_tx)
4502 return -EOPNOTSUPP;
026331c4 4503
4c476991 4504 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4505 frame_type,
026331c4
JM		 4506 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4507 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4508}
4509
2e161f78 4510static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4511{
4c476991
JB		 4512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4513 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4514 struct ieee80211_channel *chan;
4515 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4516 bool channel_type_valid = false;
026331c4
JM		 4517 u32 freq;
4518 int err;
4519 void *hdr;
4520 u64 cookie;
4521 struct sk_buff *msg;
f7ca38df
JB		 4522 unsigned int wait = 0;
4523 bool offchan;
026331c4
JM		 4524
4525 if (!info->attrs[NL80211_ATTR_FRAME] ||
4526 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4527 return -EINVAL;
4528
4c476991
JB		 4529 if (!rdev->ops->mgmt_tx)
4530 return -EOPNOTSUPP;
026331c4 4531
9d38d85d 4532 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4533 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4534 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4535 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4536 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4538 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4539 return -EOPNOTSUPP;
026331c4 4540
f7ca38df
JB		 4541 if (info->attrs[NL80211_ATTR_DURATION]) {
4542 if (!rdev->ops->mgmt_tx_cancel_wait)
4543 return -EINVAL;
4544 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4545 }
4546
026331c4
JM		 4547 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4548 channel_type = nla_get_u32(
4549 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4550 if (channel_type != NL80211_CHAN_NO_HT &&
4551 channel_type != NL80211_CHAN_HT20 &&
4552 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4553 channel_type != NL80211_CHAN_HT40MINUS)
4554 return -EINVAL;
252aa631 4555 channel_type_valid = true;
026331c4
JM		 4556 }
4557
f7ca38df
JB		 4558 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4559
026331c4
JM		 4560 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4561 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4562 if (chan == NULL)
4563 return -EINVAL;
026331c4
JM		 4564
4565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4566 if (!msg)
4567 return -ENOMEM;
026331c4
JM		 4568
4569 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4570 NL80211_CMD_FRAME);
026331c4
JM		 4571
4572 if (IS_ERR(hdr)) {
4573 err = PTR_ERR(hdr);
4574 goto free_msg;
4575 }
f7ca38df
JB		 4576 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4577 channel_type_valid, wait,
2e161f78
JB		 4578 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4579 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4580 &cookie);
026331c4
JM		 4581 if (err)
4582 goto free_msg;
4583
4584 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4585
4586 genlmsg_end(msg, hdr);
4c476991 4587 return genlmsg_reply(msg, info);
026331c4
JM		 4588
4589 nla_put_failure:
4590 err = -ENOBUFS;
4591 free_msg:
4592 nlmsg_free(msg);
026331c4
JM		 4593 return err;
4594}
4595
f7ca38df
JB		 4596static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4597{
4598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4599 struct net_device *dev = info->user_ptr[1];
4600 u64 cookie;
4601
4602 if (!info->attrs[NL80211_ATTR_COOKIE])
4603 return -EINVAL;
4604
4605 if (!rdev->ops->mgmt_tx_cancel_wait)
4606 return -EOPNOTSUPP;
4607
4608 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4609 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4610 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4611 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4612 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4613 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4614 return -EOPNOTSUPP;
4615
4616 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4617
4618 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4619}
4620
ffb9eb3d
KV		 4621static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4622{
4c476991 4623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4624 struct wireless_dev *wdev;
4c476991 4625 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4626 u8 ps_state;
4627 bool state;
4628 int err;
4629
4c476991
JB		 4630 if (!info->attrs[NL80211_ATTR_PS_STATE])
4631 return -EINVAL;
ffb9eb3d
KV		 4632
4633 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4634
4c476991
JB		 4635 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4636 return -EINVAL;
ffb9eb3d
KV		 4637
4638 wdev = dev->ieee80211_ptr;
4639
4c476991
JB		 4640 if (!rdev->ops->set_power_mgmt)
4641 return -EOPNOTSUPP;
ffb9eb3d
KV		 4642
4643 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4644
4645 if (state == wdev->ps)
4c476991 4646 return 0;
ffb9eb3d 4647
4c476991
JB		 4648 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4649 wdev->ps_timeout);
4650 if (!err)
4651 wdev->ps = state;
ffb9eb3d
KV		 4652 return err;
4653}
4654
4655static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4656{
4c476991 4657 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4658 enum nl80211_ps_state ps_state;
4659 struct wireless_dev *wdev;
4c476991 4660 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4661 struct sk_buff *msg;
4662 void *hdr;
4663 int err;
4664
ffb9eb3d
KV		 4665 wdev = dev->ieee80211_ptr;
4666
4c476991
JB		 4667 if (!rdev->ops->set_power_mgmt)
4668 return -EOPNOTSUPP;
ffb9eb3d
KV		 4669
4670 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4671 if (!msg)
4672 return -ENOMEM;
ffb9eb3d
KV		 4673
4674 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4675 NL80211_CMD_GET_POWER_SAVE);
4676 if (!hdr) {
4c476991 4677 err = -ENOBUFS;
ffb9eb3d
KV		 4678 goto free_msg;
4679 }
4680
4681 if (wdev->ps)
4682 ps_state = NL80211_PS_ENABLED;
4683 else
4684 ps_state = NL80211_PS_DISABLED;
4685
4686 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4687
4688 genlmsg_end(msg, hdr);
4c476991 4689 return genlmsg_reply(msg, info);
ffb9eb3d 4690
4c476991 4691 nla_put_failure:
ffb9eb3d 4692 err = -ENOBUFS;
4c476991 4693 free_msg:
ffb9eb3d 4694 nlmsg_free(msg);
ffb9eb3d
KV		 4695 return err;
4696}
4697
d6dc1a38
JO		 4698static struct nla_policy
4699nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4700 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4701 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4702 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4703};
4704
4705static int nl80211_set_cqm_rssi(struct genl_info *info,
4706 s32 threshold, u32 hysteresis)
4707{
4c476991 4708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4709 struct wireless_dev *wdev;
4c476991 4710 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4711
4712 if (threshold > 0)
4713 return -EINVAL;
4714
d6dc1a38
JO		 4715 wdev = dev->ieee80211_ptr;
4716
4c476991
JB		 4717 if (!rdev->ops->set_cqm_rssi_config)
4718 return -EOPNOTSUPP;
d6dc1a38 4719
074ac8df 4720 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4721 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4722 return -EOPNOTSUPP;
d6dc1a38 4723
4c476991
JB		 4724 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4725 threshold, hysteresis);
d6dc1a38
JO		 4726}
4727
4728static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4729{
4730 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4731 struct nlattr *cqm;
4732 int err;
4733
4734 cqm = info->attrs[NL80211_ATTR_CQM];
4735 if (!cqm) {
4736 err = -EINVAL;
4737 goto out;
4738 }
4739
4740 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4741 nl80211_attr_cqm_policy);
4742 if (err)
4743 goto out;
4744
4745 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4746 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4747 s32 threshold;
4748 u32 hysteresis;
4749 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4750 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4751 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4752 } else
4753 err = -EINVAL;
4754
4755out:
4756 return err;
4757}
4758
29cbe68c
JB		 4759static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
4760{
4761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4762 struct net_device *dev = info->user_ptr[1];
4763 struct mesh_config cfg;
c80d545d 4764 struct mesh_setup setup;
29cbe68c
JB		 4765 int err;
4766
4767 /* start with default */
4768 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 4769 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 4770
24bdd9f4 4771 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 4772 /* and parse parameters if given */
24bdd9f4 4773 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 4774 if (err)
4775 return err;
4776 }
4777
4778 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
4779 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
4780 return -EINVAL;
4781
c80d545d
JC		 4782 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
4783 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
4784
4785 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
4786 /* parse additional setup parameters if given */
4787 err = nl80211_parse_mesh_setup(info, &setup);
4788 if (err)
4789 return err;
4790 }
4791
4792 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 4793}
4794
4795static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
4796{
4797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4798 struct net_device *dev = info->user_ptr[1];
4799
4800 return cfg80211_leave_mesh(rdev, dev);
4801}
4802
4c476991
JB		 4803#define NL80211_FLAG_NEED_WIPHY 0x01
4804#define NL80211_FLAG_NEED_NETDEV 0x02
4805#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4806#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4807#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4808 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4809
4810static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4811 struct genl_info *info)
4812{
4813 struct cfg80211_registered_device *rdev;
4814 struct net_device *dev;
4815 int err;
4816 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4817
4818 if (rtnl)
4819 rtnl_lock();
4820
4821 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4822 rdev = cfg80211_get_dev_from_info(info);
4823 if (IS_ERR(rdev)) {
4824 if (rtnl)
4825 rtnl_unlock();
4826 return PTR_ERR(rdev);
4827 }
4828 info->user_ptr[0] = rdev;
4829 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4830 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4831 if (err) {
4832 if (rtnl)
4833 rtnl_unlock();
4834 return err;
4835 }
41265714
JB		 4836 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4837 !netif_running(dev)) {
d537f5fd
JB		 4838 cfg80211_unlock_rdev(rdev);
4839 dev_put(dev);
41265714
JB		 4840 if (rtnl)
4841 rtnl_unlock();
4842 return -ENETDOWN;
4843 }
4c476991
JB		 4844 info->user_ptr[0] = rdev;
4845 info->user_ptr[1] = dev;
4846 }
4847
4848 return 0;
4849}
4850
4851static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4852 struct genl_info *info)
4853{
4854 if (info->user_ptr[0])
4855 cfg80211_unlock_rdev(info->user_ptr[0]);
4856 if (info->user_ptr[1])
4857 dev_put(info->user_ptr[1]);
4858 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4859 rtnl_unlock();
4860}
4861
55682965
JB		 4862static struct genl_ops nl80211_ops[] = {
4863 {
4864 .cmd = NL80211_CMD_GET_WIPHY,
4865 .doit = nl80211_get_wiphy,
4866 .dumpit = nl80211_dump_wiphy,
4867 .policy = nl80211_policy,
4868 /* can be retrieved by unprivileged users */
4c476991 4869 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4870 },
4871 {
4872 .cmd = NL80211_CMD_SET_WIPHY,
4873 .doit = nl80211_set_wiphy,
4874 .policy = nl80211_policy,
4875 .flags = GENL_ADMIN_PERM,
4c476991 4876 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4877 },
4878 {
4879 .cmd = NL80211_CMD_GET_INTERFACE,
4880 .doit = nl80211_get_interface,
4881 .dumpit = nl80211_dump_interface,
4882 .policy = nl80211_policy,
4883 /* can be retrieved by unprivileged users */
4c476991 4884 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4885 },
4886 {
4887 .cmd = NL80211_CMD_SET_INTERFACE,
4888 .doit = nl80211_set_interface,
4889 .policy = nl80211_policy,
4890 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4891 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4892 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4893 },
4894 {
4895 .cmd = NL80211_CMD_NEW_INTERFACE,
4896 .doit = nl80211_new_interface,
4897 .policy = nl80211_policy,
4898 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4899 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4900 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4901 },
4902 {
4903 .cmd = NL80211_CMD_DEL_INTERFACE,
4904 .doit = nl80211_del_interface,
4905 .policy = nl80211_policy,
41ade00f 4906 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4907 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4908 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4909 },
4910 {
4911 .cmd = NL80211_CMD_GET_KEY,
4912 .doit = nl80211_get_key,
4913 .policy = nl80211_policy,
4914 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4915 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4916 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4917 },
4918 {
4919 .cmd = NL80211_CMD_SET_KEY,
4920 .doit = nl80211_set_key,
4921 .policy = nl80211_policy,
4922 .flags = GENL_ADMIN_PERM,
41265714 4923 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4924 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4925 },
4926 {
4927 .cmd = NL80211_CMD_NEW_KEY,
4928 .doit = nl80211_new_key,
4929 .policy = nl80211_policy,
4930 .flags = GENL_ADMIN_PERM,
41265714 4931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4932 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4933 },
4934 {
4935 .cmd = NL80211_CMD_DEL_KEY,
4936 .doit = nl80211_del_key,
4937 .policy = nl80211_policy,
55682965 4938 .flags = GENL_ADMIN_PERM,
41265714 4939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4940 NL80211_FLAG_NEED_RTNL,
55682965 4941 },
ed1b6cc7
JB		 4942 {
4943 .cmd = NL80211_CMD_SET_BEACON,
4944 .policy = nl80211_policy,
4945 .flags = GENL_ADMIN_PERM,
4946 .doit = nl80211_addset_beacon,
4c476991
JB		 4947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4948 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4949 },
4950 {
4951 .cmd = NL80211_CMD_NEW_BEACON,
4952 .policy = nl80211_policy,
4953 .flags = GENL_ADMIN_PERM,
4954 .doit = nl80211_addset_beacon,
4c476991
JB		 4955 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4956 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4957 },
4958 {
4959 .cmd = NL80211_CMD_DEL_BEACON,
4960 .policy = nl80211_policy,
4961 .flags = GENL_ADMIN_PERM,
4962 .doit = nl80211_del_beacon,
4c476991
JB		 4963 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4964 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4965 },
5727ef1b
JB		 4966 {
4967 .cmd = NL80211_CMD_GET_STATION,
4968 .doit = nl80211_get_station,
2ec600d6 4969 .dumpit = nl80211_dump_station,
5727ef1b 4970 .policy = nl80211_policy,
4c476991
JB		 4971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4972 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4973 },
4974 {
4975 .cmd = NL80211_CMD_SET_STATION,
4976 .doit = nl80211_set_station,
4977 .policy = nl80211_policy,
4978 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4979 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4980 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4981 },
4982 {
4983 .cmd = NL80211_CMD_NEW_STATION,
4984 .doit = nl80211_new_station,
4985 .policy = nl80211_policy,
4986 .flags = GENL_ADMIN_PERM,
41265714 4987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4988 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4989 },
4990 {
4991 .cmd = NL80211_CMD_DEL_STATION,
4992 .doit = nl80211_del_station,
4993 .policy = nl80211_policy,
2ec600d6 4994 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4996 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4997 },
4998 {
4999 .cmd = NL80211_CMD_GET_MPATH,
5000 .doit = nl80211_get_mpath,
5001 .dumpit = nl80211_dump_mpath,
5002 .policy = nl80211_policy,
5003 .flags = GENL_ADMIN_PERM,
41265714 5004 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5005 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5006 },
5007 {
5008 .cmd = NL80211_CMD_SET_MPATH,
5009 .doit = nl80211_set_mpath,
5010 .policy = nl80211_policy,
5011 .flags = GENL_ADMIN_PERM,
41265714 5012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5013 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5014 },
5015 {
5016 .cmd = NL80211_CMD_NEW_MPATH,
5017 .doit = nl80211_new_mpath,
5018 .policy = nl80211_policy,
5019 .flags = GENL_ADMIN_PERM,
41265714 5020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5021 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5022 },
5023 {
5024 .cmd = NL80211_CMD_DEL_MPATH,
5025 .doit = nl80211_del_mpath,
5026 .policy = nl80211_policy,
9f1ba906 5027 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5028 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5029 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5030 },
5031 {
5032 .cmd = NL80211_CMD_SET_BSS,
5033 .doit = nl80211_set_bss,
5034 .policy = nl80211_policy,
b2e1b302 5035 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5036 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5037 NL80211_FLAG_NEED_RTNL,
b2e1b302 5038 },
f130347c
LR		 5039 {
5040 .cmd = NL80211_CMD_GET_REG,
5041 .doit = nl80211_get_reg,
5042 .policy = nl80211_policy,
5043 /* can be retrieved by unprivileged users */
5044 },
b2e1b302
LR		 5045 {
5046 .cmd = NL80211_CMD_SET_REG,
5047 .doit = nl80211_set_reg,
5048 .policy = nl80211_policy,
5049 .flags = GENL_ADMIN_PERM,
5050 },
5051 {
5052 .cmd = NL80211_CMD_REQ_SET_REG,
5053 .doit = nl80211_req_set_reg,
5054 .policy = nl80211_policy,
93da9cc1 5055 .flags = GENL_ADMIN_PERM,
5056 },
5057 {
24bdd9f4
JC		 5058 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5059 .doit = nl80211_get_mesh_config,
93da9cc1 5060 .policy = nl80211_policy,
5061 /* can be retrieved by unprivileged users */
4c476991
JB		 5062 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5063 NL80211_FLAG_NEED_RTNL,
93da9cc1 5064 },
5065 {
24bdd9f4
JC		 5066 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5067 .doit = nl80211_update_mesh_config,
93da9cc1 5068 .policy = nl80211_policy,
9aed3cc1 5069 .flags = GENL_ADMIN_PERM,
29cbe68c 5070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5071 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5072 },
2a519311
JB		 5073 {
5074 .cmd = NL80211_CMD_TRIGGER_SCAN,
5075 .doit = nl80211_trigger_scan,
5076 .policy = nl80211_policy,
5077 .flags = GENL_ADMIN_PERM,
41265714 5078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5079 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5080 },
5081 {
5082 .cmd = NL80211_CMD_GET_SCAN,
5083 .policy = nl80211_policy,
5084 .dumpit = nl80211_dump_scan,
5085 },
636a5d36
JM		 5086 {
5087 .cmd = NL80211_CMD_AUTHENTICATE,
5088 .doit = nl80211_authenticate,
5089 .policy = nl80211_policy,
5090 .flags = GENL_ADMIN_PERM,
41265714 5091 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5092 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5093 },
5094 {
5095 .cmd = NL80211_CMD_ASSOCIATE,
5096 .doit = nl80211_associate,
5097 .policy = nl80211_policy,
5098 .flags = GENL_ADMIN_PERM,
41265714 5099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5100 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5101 },
5102 {
5103 .cmd = NL80211_CMD_DEAUTHENTICATE,
5104 .doit = nl80211_deauthenticate,
5105 .policy = nl80211_policy,
5106 .flags = GENL_ADMIN_PERM,
41265714 5107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5108 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5109 },
5110 {
5111 .cmd = NL80211_CMD_DISASSOCIATE,
5112 .doit = nl80211_disassociate,
5113 .policy = nl80211_policy,
5114 .flags = GENL_ADMIN_PERM,
41265714 5115 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5116 NL80211_FLAG_NEED_RTNL,
636a5d36 5117 },
04a773ad
JB		 5118 {
5119 .cmd = NL80211_CMD_JOIN_IBSS,
5120 .doit = nl80211_join_ibss,
5121 .policy = nl80211_policy,
5122 .flags = GENL_ADMIN_PERM,
41265714 5123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5124 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5125 },
5126 {
5127 .cmd = NL80211_CMD_LEAVE_IBSS,
5128 .doit = nl80211_leave_ibss,
5129 .policy = nl80211_policy,
5130 .flags = GENL_ADMIN_PERM,
41265714 5131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5132 NL80211_FLAG_NEED_RTNL,
04a773ad 5133 },
aff89a9b
JB		 5134#ifdef CONFIG_NL80211_TESTMODE
5135 {
5136 .cmd = NL80211_CMD_TESTMODE,
5137 .doit = nl80211_testmode_do,
5138 .policy = nl80211_policy,
5139 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5140 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5141 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5142 },
5143#endif
b23aa676
SO		 5144 {
5145 .cmd = NL80211_CMD_CONNECT,
5146 .doit = nl80211_connect,
5147 .policy = nl80211_policy,
5148 .flags = GENL_ADMIN_PERM,
41265714 5149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5150 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5151 },
5152 {
5153 .cmd = NL80211_CMD_DISCONNECT,
5154 .doit = nl80211_disconnect,
5155 .policy = nl80211_policy,
5156 .flags = GENL_ADMIN_PERM,
41265714 5157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5158 NL80211_FLAG_NEED_RTNL,
b23aa676 5159 },
463d0183
JB		 5160 {
5161 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5162 .doit = nl80211_wiphy_netns,
5163 .policy = nl80211_policy,
5164 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5165 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5166 NL80211_FLAG_NEED_RTNL,
463d0183 5167 },
61fa713c
HS		 5168 {
5169 .cmd = NL80211_CMD_GET_SURVEY,
5170 .policy = nl80211_policy,
5171 .dumpit = nl80211_dump_survey,
5172 },
67fbb16b
SO		 5173 {
5174 .cmd = NL80211_CMD_SET_PMKSA,
5175 .doit = nl80211_setdel_pmksa,
5176 .policy = nl80211_policy,
5177 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5178 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5179 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5180 },
5181 {
5182 .cmd = NL80211_CMD_DEL_PMKSA,
5183 .doit = nl80211_setdel_pmksa,
5184 .policy = nl80211_policy,
5185 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5187 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5188 },
5189 {
5190 .cmd = NL80211_CMD_FLUSH_PMKSA,
5191 .doit = nl80211_flush_pmksa,
5192 .policy = nl80211_policy,
5193 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5195 NL80211_FLAG_NEED_RTNL,
67fbb16b 5196 },
9588bbd5
JM		 5197 {
5198 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5199 .doit = nl80211_remain_on_channel,
5200 .policy = nl80211_policy,
5201 .flags = GENL_ADMIN_PERM,
41265714 5202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5203 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5204 },
5205 {
5206 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5207 .doit = nl80211_cancel_remain_on_channel,
5208 .policy = nl80211_policy,
5209 .flags = GENL_ADMIN_PERM,
41265714 5210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5211 NL80211_FLAG_NEED_RTNL,
9588bbd5 5212 },
13ae75b1
JM		 5213 {
5214 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5215 .doit = nl80211_set_tx_bitrate_mask,
5216 .policy = nl80211_policy,
5217 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5218 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5219 NL80211_FLAG_NEED_RTNL,
13ae75b1 5220 },
026331c4 5221 {
2e161f78
JB		 5222 .cmd = NL80211_CMD_REGISTER_FRAME,
5223 .doit = nl80211_register_mgmt,
026331c4
JM		 5224 .policy = nl80211_policy,
5225 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5227 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5228 },
5229 {
2e161f78
JB		 5230 .cmd = NL80211_CMD_FRAME,
5231 .doit = nl80211_tx_mgmt,
026331c4 5232 .policy = nl80211_policy,
f7ca38df
JB		 5233 .flags = GENL_ADMIN_PERM,
5234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5235 NL80211_FLAG_NEED_RTNL,
5236 },
5237 {
5238 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5239 .doit = nl80211_tx_mgmt_cancel_wait,
5240 .policy = nl80211_policy,
026331c4 5241 .flags = GENL_ADMIN_PERM,
41265714 5242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5243 NL80211_FLAG_NEED_RTNL,
026331c4 5244 },
ffb9eb3d
KV		 5245 {
5246 .cmd = NL80211_CMD_SET_POWER_SAVE,
5247 .doit = nl80211_set_power_save,
5248 .policy = nl80211_policy,
5249 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5250 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5251 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5252 },
5253 {
5254 .cmd = NL80211_CMD_GET_POWER_SAVE,
5255 .doit = nl80211_get_power_save,
5256 .policy = nl80211_policy,
5257 /* can be retrieved by unprivileged users */
4c476991
JB		 5258 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5259 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5260 },
d6dc1a38
JO		 5261 {
5262 .cmd = NL80211_CMD_SET_CQM,
5263 .doit = nl80211_set_cqm,
5264 .policy = nl80211_policy,
5265 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5266 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5267 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5268 },
f444de05
JB		 5269 {
5270 .cmd = NL80211_CMD_SET_CHANNEL,
5271 .doit = nl80211_set_channel,
5272 .policy = nl80211_policy,
5273 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5275 NL80211_FLAG_NEED_RTNL,
f444de05 5276 },
e8347eba
BJ		 5277 {
5278 .cmd = NL80211_CMD_SET_WDS_PEER,
5279 .doit = nl80211_set_wds_peer,
5280 .policy = nl80211_policy,
5281 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5282 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5283 NL80211_FLAG_NEED_RTNL,
e8347eba 5284 },
29cbe68c
JB		 5285 {
5286 .cmd = NL80211_CMD_JOIN_MESH,
5287 .doit = nl80211_join_mesh,
5288 .policy = nl80211_policy,
5289 .flags = GENL_ADMIN_PERM,
5290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5291 NL80211_FLAG_NEED_RTNL,
5292 },
5293 {
5294 .cmd = NL80211_CMD_LEAVE_MESH,
5295 .doit = nl80211_leave_mesh,
5296 .policy = nl80211_policy,
5297 .flags = GENL_ADMIN_PERM,
5298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5299 NL80211_FLAG_NEED_RTNL,
5300 },
55682965 5301};
9588bbd5 5302
6039f6d2
JM		 5303static struct genl_multicast_group nl80211_mlme_mcgrp = {
5304 .name = "mlme",
5305};
55682965
JB		 5306
5307/* multicast groups */
5308static struct genl_multicast_group nl80211_config_mcgrp = {
5309 .name = "config",
5310};
2a519311
JB		 5311static struct genl_multicast_group nl80211_scan_mcgrp = {
5312 .name = "scan",
5313};
73d54c9e
LR		 5314static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5315 .name = "regulatory",
5316};
55682965
JB		 5317
5318/* notification functions */
5319
5320void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5321{
5322 struct sk_buff *msg;
5323
fd2120ca 5324 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5325 if (!msg)
5326 return;
5327
5328 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5329 nlmsg_free(msg);
5330 return;
5331 }
5332
463d0183
JB		 5333 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5334 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5335}
5336
362a415d
JB		 5337static int nl80211_add_scan_req(struct sk_buff *msg,
5338 struct cfg80211_registered_device *rdev)
5339{
5340 struct cfg80211_scan_request *req = rdev->scan_req;
5341 struct nlattr *nest;
5342 int i;
5343
667503dd
JB		 5344 ASSERT_RDEV_LOCK(rdev);
5345
362a415d
JB		 5346 if (WARN_ON(!req))
5347 return 0;
5348
5349 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5350 if (!nest)
5351 goto nla_put_failure;
5352 for (i = 0; i < req->n_ssids; i++)
5353 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5354 nla_nest_end(msg, nest);
5355
5356 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5357 if (!nest)
5358 goto nla_put_failure;
5359 for (i = 0; i < req->n_channels; i++)
5360 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5361 nla_nest_end(msg, nest);
5362
5363 if (req->ie)
5364 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5365
5366 return 0;
5367 nla_put_failure:
5368 return -ENOBUFS;
5369}
5370
a538e2d5
JB		 5371static int nl80211_send_scan_msg(struct sk_buff *msg,
5372 struct cfg80211_registered_device *rdev,
5373 struct net_device *netdev,
5374 u32 pid, u32 seq, int flags,
5375 u32 cmd)
2a519311
JB		 5376{
5377 void *hdr;
5378
5379 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5380 if (!hdr)
5381 return -1;
5382
b5850a7a 5383 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5384 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5385
362a415d
JB		 5386 /* ignore errors and send incomplete event anyway */
5387 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5388
5389 return genlmsg_end(msg, hdr);
5390
5391 nla_put_failure:
5392 genlmsg_cancel(msg, hdr);
5393 return -EMSGSIZE;
5394}
5395
a538e2d5
JB		 5396void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5397 struct net_device *netdev)
5398{
5399 struct sk_buff *msg;
5400
5401 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5402 if (!msg)
5403 return;
5404
5405 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5406 NL80211_CMD_TRIGGER_SCAN) < 0) {
5407 nlmsg_free(msg);
5408 return;
5409 }
5410
463d0183
JB		 5411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5412 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5413}
5414
2a519311
JB		 5415void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5416 struct net_device *netdev)
5417{
5418 struct sk_buff *msg;
5419
fd2120ca 5420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5421 if (!msg)
5422 return;
5423
a538e2d5
JB		 5424 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5425 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5426 nlmsg_free(msg);
5427 return;
5428 }
5429
463d0183
JB		 5430 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5431 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5432}
5433
5434void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5435 struct net_device *netdev)
5436{
5437 struct sk_buff *msg;
5438
fd2120ca 5439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5440 if (!msg)
5441 return;
5442
a538e2d5
JB		 5443 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5444 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5445 nlmsg_free(msg);
5446 return;
5447 }
5448
463d0183
JB		 5449 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5450 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5451}
5452
73d54c9e
LR		 5453/*
5454 * This can happen on global regulatory changes or device specific settings
5455 * based on custom world regulatory domains.
5456 */
5457void nl80211_send_reg_change_event(struct regulatory_request *request)
5458{
5459 struct sk_buff *msg;
5460 void *hdr;
5461
fd2120ca 5462 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5463 if (!msg)
5464 return;
5465
5466 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5467 if (!hdr) {
5468 nlmsg_free(msg);
5469 return;
5470 }
5471
5472 /* Userspace can always count this one always being set */
5473 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5474
5475 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5476 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5477 NL80211_REGDOM_TYPE_WORLD);
5478 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5479 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5480 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5481 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5482 request->intersect)
5483 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5484 NL80211_REGDOM_TYPE_INTERSECTION);
5485 else {
5486 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5487 NL80211_REGDOM_TYPE_COUNTRY);
5488 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5489 }
5490
5491 if (wiphy_idx_valid(request->wiphy_idx))
5492 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5493
5494 if (genlmsg_end(msg, hdr) < 0) {
5495 nlmsg_free(msg);
5496 return;
5497 }
5498
bc43b28c 5499 rcu_read_lock();
463d0183 5500 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5501 GFP_ATOMIC);
5502 rcu_read_unlock();
73d54c9e
LR		 5503
5504 return;
5505
5506nla_put_failure:
5507 genlmsg_cancel(msg, hdr);
5508 nlmsg_free(msg);
5509}
5510
6039f6d2
JM		 5511static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5512 struct net_device *netdev,
5513 const u8 *buf, size_t len,
e6d6e342 5514 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5515{
5516 struct sk_buff *msg;
5517 void *hdr;
5518
e6d6e342 5519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5520 if (!msg)
5521 return;
5522
5523 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5524 if (!hdr) {
5525 nlmsg_free(msg);
5526 return;
5527 }
5528
5529 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5530 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5531 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5532
5533 if (genlmsg_end(msg, hdr) < 0) {
5534 nlmsg_free(msg);
5535 return;
5536 }
5537
463d0183
JB		 5538 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5539 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5540 return;
5541
5542 nla_put_failure:
5543 genlmsg_cancel(msg, hdr);
5544 nlmsg_free(msg);
5545}
5546
5547void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5548 struct net_device *netdev, const u8 *buf,
5549 size_t len, gfp_t gfp)
6039f6d2
JM		 5550{
5551 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5552 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5553}
5554
5555void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5556 struct net_device *netdev, const u8 *buf,
e6d6e342 5557 size_t len, gfp_t gfp)
6039f6d2 5558{
e6d6e342
JB		 5559 nl80211_send_mlme_event(rdev, netdev, buf, len,
5560 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5561}
5562
53b46b84 5563void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5564 struct net_device *netdev, const u8 *buf,
5565 size_t len, gfp_t gfp)
6039f6d2
JM		 5566{
5567 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5568 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5569}
5570
53b46b84
JM		 5571void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5572 struct net_device *netdev, const u8 *buf,
e6d6e342 5573 size_t len, gfp_t gfp)
6039f6d2
JM		 5574{
5575 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5576 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5577}
5578
cf4e594e
JM		 5579void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
5580 struct net_device *netdev, const u8 *buf,
5581 size_t len, gfp_t gfp)
5582{
5583 nl80211_send_mlme_event(rdev, netdev, buf, len,
5584 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
5585}
5586
5587void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
5588 struct net_device *netdev, const u8 *buf,
5589 size_t len, gfp_t gfp)
5590{
5591 nl80211_send_mlme_event(rdev, netdev, buf, len,
5592 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
5593}
5594
1b06bb40
LR		 5595static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5596 struct net_device *netdev, int cmd,
e6d6e342 5597 const u8 *addr, gfp_t gfp)
1965c853
JM		 5598{
5599 struct sk_buff *msg;
5600 void *hdr;
5601
e6d6e342 5602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5603 if (!msg)
5604 return;
5605
5606 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5607 if (!hdr) {
5608 nlmsg_free(msg);
5609 return;
5610 }
5611
5612 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5614 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5615 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5616
5617 if (genlmsg_end(msg, hdr) < 0) {
5618 nlmsg_free(msg);
5619 return;
5620 }
5621
463d0183
JB		 5622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5623 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5624 return;
5625
5626 nla_put_failure:
5627 genlmsg_cancel(msg, hdr);
5628 nlmsg_free(msg);
5629}
5630
5631void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5632 struct net_device *netdev, const u8 *addr,
5633 gfp_t gfp)
1965c853
JM		 5634{
5635 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5636 addr, gfp);
1965c853
JM		 5637}
5638
5639void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5640 struct net_device *netdev, const u8 *addr,
5641 gfp_t gfp)
1965c853 5642{
e6d6e342
JB		 5643 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5644 addr, gfp);
1965c853
JM		 5645}
5646
b23aa676
SO		 5647void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5648 struct net_device *netdev, const u8 *bssid,
5649 const u8 *req_ie, size_t req_ie_len,
5650 const u8 *resp_ie, size_t resp_ie_len,
5651 u16 status, gfp_t gfp)
5652{
5653 struct sk_buff *msg;
5654 void *hdr;
5655
5656 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5657 if (!msg)
5658 return;
5659
5660 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5661 if (!hdr) {
5662 nlmsg_free(msg);
5663 return;
5664 }
5665
5666 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5667 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5668 if (bssid)
5669 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5670 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5671 if (req_ie)
5672 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5673 if (resp_ie)
5674 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5675
5676 if (genlmsg_end(msg, hdr) < 0) {
5677 nlmsg_free(msg);
5678 return;
5679 }
5680
463d0183
JB		 5681 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5682 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5683 return;
5684
5685 nla_put_failure:
5686 genlmsg_cancel(msg, hdr);
5687 nlmsg_free(msg);
5688
5689}
5690
5691void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5692 struct net_device *netdev, const u8 *bssid,
5693 const u8 *req_ie, size_t req_ie_len,
5694 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5695{
5696 struct sk_buff *msg;
5697 void *hdr;
5698
5699 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5700 if (!msg)
5701 return;
5702
5703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5704 if (!hdr) {
5705 nlmsg_free(msg);
5706 return;
5707 }
5708
5709 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5710 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5711 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5712 if (req_ie)
5713 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5714 if (resp_ie)
5715 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5716
5717 if (genlmsg_end(msg, hdr) < 0) {
5718 nlmsg_free(msg);
5719 return;
5720 }
5721
463d0183
JB		 5722 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5723 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5724 return;
5725
5726 nla_put_failure:
5727 genlmsg_cancel(msg, hdr);
5728 nlmsg_free(msg);
5729
5730}
5731
5732void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5733 struct net_device *netdev, u16 reason,
667503dd 5734 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5735{
5736 struct sk_buff *msg;
5737 void *hdr;
5738
667503dd 5739 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5740 if (!msg)
5741 return;
5742
5743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5744 if (!hdr) {
5745 nlmsg_free(msg);
5746 return;
5747 }
5748
5749 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5750 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5751 if (from_ap && reason)
5752 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5753 if (from_ap)
5754 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5755 if (ie)
5756 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5757
5758 if (genlmsg_end(msg, hdr) < 0) {
5759 nlmsg_free(msg);
5760 return;
5761 }
5762
463d0183
JB		 5763 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5764 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5765 return;
5766
5767 nla_put_failure:
5768 genlmsg_cancel(msg, hdr);
5769 nlmsg_free(msg);
5770
5771}
5772
04a773ad
JB		 5773void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5774 struct net_device *netdev, const u8 *bssid,
5775 gfp_t gfp)
5776{
5777 struct sk_buff *msg;
5778 void *hdr;
5779
fd2120ca 5780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5781 if (!msg)
5782 return;
5783
5784 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5785 if (!hdr) {
5786 nlmsg_free(msg);
5787 return;
5788 }
5789
5790 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5791 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5792 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5793
5794 if (genlmsg_end(msg, hdr) < 0) {
5795 nlmsg_free(msg);
5796 return;
5797 }
5798
463d0183
JB		 5799 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5800 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5801 return;
5802
5803 nla_put_failure:
5804 genlmsg_cancel(msg, hdr);
5805 nlmsg_free(msg);
5806}
5807
a3b8b056
JM		 5808void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5809 struct net_device *netdev, const u8 *addr,
5810 enum nl80211_key_type key_type, int key_id,
e6d6e342 5811 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5812{
5813 struct sk_buff *msg;
5814 void *hdr;
5815
e6d6e342 5816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5817 if (!msg)
5818 return;
5819
5820 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5821 if (!hdr) {
5822 nlmsg_free(msg);
5823 return;
5824 }
5825
5826 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5827 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5828 if (addr)
5829 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5830 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5831 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5832 if (tsc)
5833 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5834
5835 if (genlmsg_end(msg, hdr) < 0) {
5836 nlmsg_free(msg);
5837 return;
5838 }
5839
463d0183
JB		 5840 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5841 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5842 return;
5843
5844 nla_put_failure:
5845 genlmsg_cancel(msg, hdr);
5846 nlmsg_free(msg);
5847}
5848
6bad8766
LR		 5849void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5850 struct ieee80211_channel *channel_before,
5851 struct ieee80211_channel *channel_after)
5852{
5853 struct sk_buff *msg;
5854 void *hdr;
5855 struct nlattr *nl_freq;
5856
fd2120ca 5857 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5858 if (!msg)
5859 return;
5860
5861 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5862 if (!hdr) {
5863 nlmsg_free(msg);
5864 return;
5865 }
5866
5867 /*
5868 * Since we are applying the beacon hint to a wiphy we know its
5869 * wiphy_idx is valid
5870 */
5871 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5872
5873 /* Before */
5874 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5875 if (!nl_freq)
5876 goto nla_put_failure;
5877 if (nl80211_msg_put_channel(msg, channel_before))
5878 goto nla_put_failure;
5879 nla_nest_end(msg, nl_freq);
5880
5881 /* After */
5882 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5883 if (!nl_freq)
5884 goto nla_put_failure;
5885 if (nl80211_msg_put_channel(msg, channel_after))
5886 goto nla_put_failure;
5887 nla_nest_end(msg, nl_freq);
5888
5889 if (genlmsg_end(msg, hdr) < 0) {
5890 nlmsg_free(msg);
5891 return;
5892 }
5893
463d0183
JB		 5894 rcu_read_lock();
5895 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5896 GFP_ATOMIC);
5897 rcu_read_unlock();
6bad8766
LR		 5898
5899 return;
5900
5901nla_put_failure:
5902 genlmsg_cancel(msg, hdr);
5903 nlmsg_free(msg);
5904}
5905
9588bbd5
JM		 5906static void nl80211_send_remain_on_chan_event(
5907 int cmd, struct cfg80211_registered_device *rdev,
5908 struct net_device *netdev, u64 cookie,
5909 struct ieee80211_channel *chan,
5910 enum nl80211_channel_type channel_type,
5911 unsigned int duration, gfp_t gfp)
5912{
5913 struct sk_buff *msg;
5914 void *hdr;
5915
5916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5917 if (!msg)
5918 return;
5919
5920 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5921 if (!hdr) {
5922 nlmsg_free(msg);
5923 return;
5924 }
5925
5926 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5927 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5928 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5929 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5930 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5931
5932 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5933 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5934
5935 if (genlmsg_end(msg, hdr) < 0) {
5936 nlmsg_free(msg);
5937 return;
5938 }
5939
5940 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5941 nl80211_mlme_mcgrp.id, gfp);
5942 return;
5943
5944 nla_put_failure:
5945 genlmsg_cancel(msg, hdr);
5946 nlmsg_free(msg);
5947}
5948
5949void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5950 struct net_device *netdev, u64 cookie,
5951 struct ieee80211_channel *chan,
5952 enum nl80211_channel_type channel_type,
5953 unsigned int duration, gfp_t gfp)
5954{
5955 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5956 rdev, netdev, cookie, chan,
5957 channel_type, duration, gfp);
5958}
5959
5960void nl80211_send_remain_on_channel_cancel(
5961 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5962 u64 cookie, struct ieee80211_channel *chan,
5963 enum nl80211_channel_type channel_type, gfp_t gfp)
5964{
5965 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5966 rdev, netdev, cookie, chan,
5967 channel_type, 0, gfp);
5968}
5969
98b62183
JB		 5970void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5971 struct net_device *dev, const u8 *mac_addr,
5972 struct station_info *sinfo, gfp_t gfp)
5973{
5974 struct sk_buff *msg;
5975
5976 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5977 if (!msg)
5978 return;
5979
5980 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5981 nlmsg_free(msg);
5982 return;
5983 }
5984
5985 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5986 nl80211_mlme_mcgrp.id, gfp);
5987}
5988
ec15e68b
JM		 5989void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
5990 struct net_device *dev, const u8 *mac_addr,
5991 gfp_t gfp)
5992{
5993 struct sk_buff *msg;
5994 void *hdr;
5995
5996 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5997 if (!msg)
5998 return;
5999
6000 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6001 if (!hdr) {
6002 nlmsg_free(msg);
6003 return;
6004 }
6005
6006 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6007 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6008
6009 if (genlmsg_end(msg, hdr) < 0) {
6010 nlmsg_free(msg);
6011 return;
6012 }
6013
6014 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6015 nl80211_mlme_mcgrp.id, gfp);
6016 return;
6017
6018 nla_put_failure:
6019 genlmsg_cancel(msg, hdr);
6020 nlmsg_free(msg);
6021}
6022
2e161f78
JB		 6023int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6024 struct net_device *netdev, u32 nlpid,
6025 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6026{
6027 struct sk_buff *msg;
6028 void *hdr;
6029 int err;
6030
6031 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6032 if (!msg)
6033 return -ENOMEM;
6034
2e161f78 6035 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6036 if (!hdr) {
6037 nlmsg_free(msg);
6038 return -ENOMEM;
6039 }
6040
6041 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6042 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6043 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6044 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6045
6046 err = genlmsg_end(msg, hdr);
6047 if (err < 0) {
6048 nlmsg_free(msg);
6049 return err;
6050 }
6051
6052 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6053 if (err < 0)
6054 return err;
6055 return 0;
6056
6057 nla_put_failure:
6058 genlmsg_cancel(msg, hdr);
6059 nlmsg_free(msg);
6060 return -ENOBUFS;
6061}
6062
2e161f78
JB		 6063void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6064 struct net_device *netdev, u64 cookie,
6065 const u8 *buf, size_t len, bool ack,
6066 gfp_t gfp)
026331c4
JM		 6067{
6068 struct sk_buff *msg;
6069 void *hdr;
6070
6071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6072 if (!msg)
6073 return;
6074
2e161f78 6075 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6076 if (!hdr) {
6077 nlmsg_free(msg);
6078 return;
6079 }
6080
6081 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6082 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6083 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6084 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6085 if (ack)
6086 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6087
6088 if (genlmsg_end(msg, hdr) < 0) {
6089 nlmsg_free(msg);
6090 return;
6091 }
6092
6093 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6094 return;
6095
6096 nla_put_failure:
6097 genlmsg_cancel(msg, hdr);
6098 nlmsg_free(msg);
6099}
6100
d6dc1a38
JO		 6101void
6102nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6103 struct net_device *netdev,
6104 enum nl80211_cqm_rssi_threshold_event rssi_event,
6105 gfp_t gfp)
6106{
6107 struct sk_buff *msg;
6108 struct nlattr *pinfoattr;
6109 void *hdr;
6110
6111 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6112 if (!msg)
6113 return;
6114
6115 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6116 if (!hdr) {
6117 nlmsg_free(msg);
6118 return;
6119 }
6120
6121 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6123
6124 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6125 if (!pinfoattr)
6126 goto nla_put_failure;
6127
6128 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6129 rssi_event);
6130
6131 nla_nest_end(msg, pinfoattr);
6132
6133 if (genlmsg_end(msg, hdr) < 0) {
6134 nlmsg_free(msg);
6135 return;
6136 }
6137
6138 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6139 nl80211_mlme_mcgrp.id, gfp);
6140 return;
6141
6142 nla_put_failure:
6143 genlmsg_cancel(msg, hdr);
6144 nlmsg_free(msg);
6145}
6146
c063dbf5
JB		 6147void
6148nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6149 struct net_device *netdev, const u8 *peer,
6150 u32 num_packets, gfp_t gfp)
6151{
6152 struct sk_buff *msg;
6153 struct nlattr *pinfoattr;
6154 void *hdr;
6155
6156 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6157 if (!msg)
6158 return;
6159
6160 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6161 if (!hdr) {
6162 nlmsg_free(msg);
6163 return;
6164 }
6165
6166 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6167 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6168 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6169
6170 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6171 if (!pinfoattr)
6172 goto nla_put_failure;
6173
6174 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6175
6176 nla_nest_end(msg, pinfoattr);
6177
6178 if (genlmsg_end(msg, hdr) < 0) {
6179 nlmsg_free(msg);
6180 return;
6181 }
6182
6183 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6184 nl80211_mlme_mcgrp.id, gfp);
6185 return;
6186
6187 nla_put_failure:
6188 genlmsg_cancel(msg, hdr);
6189 nlmsg_free(msg);
6190}
6191
026331c4
JM		 6192static int nl80211_netlink_notify(struct notifier_block * nb,
6193 unsigned long state,
6194 void *_notify)
6195{
6196 struct netlink_notify *notify = _notify;
6197 struct cfg80211_registered_device *rdev;
6198 struct wireless_dev *wdev;
6199
6200 if (state != NETLINK_URELEASE)
6201 return NOTIFY_DONE;
6202
6203 rcu_read_lock();
6204
6205 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6206 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 6207 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 6208
6209 rcu_read_unlock();
6210
6211 return NOTIFY_DONE;
6212}
6213
6214static struct notifier_block nl80211_netlink_notifier = {
6215 .notifier_call = nl80211_netlink_notify,
6216};
6217
55682965
JB		 6218/* initialisation/exit functions */
6219
6220int nl80211_init(void)
6221{
0d63cbb5 6222 int err;
55682965 6223
0d63cbb5
MM		 6224 err = genl_register_family_with_ops(&nl80211_fam,
6225 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 6226 if (err)
6227 return err;
6228
55682965
JB		 6229 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6230 if (err)
6231 goto err_out;
6232
2a519311
JB		 6233 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6234 if (err)
6235 goto err_out;
6236
73d54c9e
LR		 6237 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6238 if (err)
6239 goto err_out;
6240
6039f6d2
JM		 6241 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6242 if (err)
6243 goto err_out;
6244
aff89a9b
JB		 6245#ifdef CONFIG_NL80211_TESTMODE
6246 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6247 if (err)
6248 goto err_out;
6249#endif
6250
026331c4
JM		 6251 err = netlink_register_notifier(&nl80211_netlink_notifier);
6252 if (err)
6253 goto err_out;
6254
55682965
JB		 6255 return 0;
6256 err_out:
6257 genl_unregister_family(&nl80211_fam);
6258 return err;
6259}
6260
6261void nl80211_exit(void)
6262{
026331c4 6263 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6264 genl_unregister_family(&nl80211_fam);
6265}
kernel source for telekom puls (alcatel/mediatek)