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ath9k: better position PAPRD debug message
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
50b12f59 124 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 125
24bdd9f4 126 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 127 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 128
36aedc90
JM		 129 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
130 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 131
132 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
133 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
134 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 135 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
136 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 137
138 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_SSID_LEN },
140 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
141 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 142 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 143 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 144 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 145 [NL80211_ATTR_STA_FLAGS2] = {
146 .len = sizeof(struct nl80211_sta_flag_update),
147 },
3f77316c 148 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 149 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
150 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 151 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
152 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
153 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 154 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 155 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 156 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
157 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 158 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
159 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 160 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 161 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
162 .len = IEEE80211_MAX_DATA_LEN },
163 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 164 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 165 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 166 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 167 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 168 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 170 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 171 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 173 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 174 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 175 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 176 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 177 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 178 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
55682965
JB		 179};
180
e31b8213 181/* policy for the key attributes */
b54452b0 182static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 183 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 184 [NL80211_KEY_IDX] = { .type = NLA_U8 },
185 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
186 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
187 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
188 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 189 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 190 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
191};
192
193/* policy for the key default flags */
194static const struct nla_policy
195nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
196 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
197 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 198};
199
ff1b6e69
JB		 200/* policy for WoWLAN attributes */
201static const struct nla_policy
202nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
203 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
204 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
205 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
206 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
207};
208
a043897a
HS		 209/* ifidx get helper */
210static int nl80211_get_ifidx(struct netlink_callback *cb)
211{
212 int res;
213
214 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
215 nl80211_fam.attrbuf, nl80211_fam.maxattr,
216 nl80211_policy);
217 if (res)
218 return res;
219
220 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
221 return -EINVAL;
222
223 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
224 if (!res)
225 return -EINVAL;
226 return res;
227}
228
67748893
JB		 229static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
230 struct netlink_callback *cb,
231 struct cfg80211_registered_device **rdev,
232 struct net_device **dev)
233{
234 int ifidx = cb->args[0];
235 int err;
236
237 if (!ifidx)
238 ifidx = nl80211_get_ifidx(cb);
239 if (ifidx < 0)
240 return ifidx;
241
242 cb->args[0] = ifidx;
243
244 rtnl_lock();
245
246 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
247 if (!*dev) {
248 err = -ENODEV;
249 goto out_rtnl;
250 }
251
252 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 253 if (IS_ERR(*rdev)) {
254 err = PTR_ERR(*rdev);
67748893
JB		 255 goto out_rtnl;
256 }
257
258 return 0;
259 out_rtnl:
260 rtnl_unlock();
261 return err;
262}
263
264static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
265{
266 cfg80211_unlock_rdev(rdev);
267 rtnl_unlock();
268}
269
f4a11bb0
JB		 270/* IE validation */
271static bool is_valid_ie_attr(const struct nlattr *attr)
272{
273 const u8 *pos;
274 int len;
275
276 if (!attr)
277 return true;
278
279 pos = nla_data(attr);
280 len = nla_len(attr);
281
282 while (len) {
283 u8 elemlen;
284
285 if (len < 2)
286 return false;
287 len -= 2;
288
289 elemlen = pos[1];
290 if (elemlen > len)
291 return false;
292
293 len -= elemlen;
294 pos += 2 + elemlen;
295 }
296
297 return true;
298}
299
55682965
JB		 300/* message building helper */
301static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
302 int flags, u8 cmd)
303{
304 /* since there is no private header just add the generic one */
305 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
306}
307
5dab3b8a
LR		 308static int nl80211_msg_put_channel(struct sk_buff *msg,
309 struct ieee80211_channel *chan)
310{
311 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
312 chan->center_freq);
313
314 if (chan->flags & IEEE80211_CHAN_DISABLED)
315 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
316 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
317 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
318 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
319 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
320 if (chan->flags & IEEE80211_CHAN_RADAR)
321 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
322
323 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
324 DBM_TO_MBM(chan->max_power));
325
326 return 0;
327
328 nla_put_failure:
329 return -ENOBUFS;
330}
331
55682965
JB		 332/* netlink command implementations */
333
b9454e83
JB		 334struct key_parse {
335 struct key_params p;
336 int idx;
e31b8213 337 int type;
b9454e83 338 bool def, defmgmt;
dbd2fd65 339 bool def_uni, def_multi;
b9454e83
JB		 340};
341
342static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
343{
344 struct nlattr *tb[NL80211_KEY_MAX + 1];
345 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
346 nl80211_key_policy);
347 if (err)
348 return err;
349
350 k->def = !!tb[NL80211_KEY_DEFAULT];
351 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
352
dbd2fd65
JB		 353 if (k->def) {
354 k->def_uni = true;
355 k->def_multi = true;
356 }
357 if (k->defmgmt)
358 k->def_multi = true;
359
b9454e83
JB		 360 if (tb[NL80211_KEY_IDX])
361 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
362
363 if (tb[NL80211_KEY_DATA]) {
364 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
365 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
366 }
367
368 if (tb[NL80211_KEY_SEQ]) {
369 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
370 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
371 }
372
373 if (tb[NL80211_KEY_CIPHER])
374 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
375
e31b8213
JB		 376 if (tb[NL80211_KEY_TYPE]) {
377 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
378 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
379 return -EINVAL;
380 }
381
dbd2fd65
JB		 382 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
383 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
384 int err = nla_parse_nested(kdt,
385 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
386 tb[NL80211_KEY_DEFAULT_TYPES],
387 nl80211_key_default_policy);
388 if (err)
389 return err;
390
391 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
392 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
393 }
394
b9454e83
JB		 395 return 0;
396}
397
398static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
399{
400 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
401 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
402 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
403 }
404
405 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
406 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
407 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
408 }
409
410 if (info->attrs[NL80211_ATTR_KEY_IDX])
411 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
412
413 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
414 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
415
416 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
417 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
418
dbd2fd65
JB		 419 if (k->def) {
420 k->def_uni = true;
421 k->def_multi = true;
422 }
423 if (k->defmgmt)
424 k->def_multi = true;
425
e31b8213
JB		 426 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
427 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
428 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
429 return -EINVAL;
430 }
431
dbd2fd65
JB		 432 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
433 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
434 int err = nla_parse_nested(
435 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
436 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
437 nl80211_key_default_policy);
438 if (err)
439 return err;
440
441 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
442 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
443 }
444
b9454e83
JB		 445 return 0;
446}
447
448static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
449{
450 int err;
451
452 memset(k, 0, sizeof(*k));
453 k->idx = -1;
e31b8213 454 k->type = -1;
b9454e83
JB		 455
456 if (info->attrs[NL80211_ATTR_KEY])
457 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
458 else
459 err = nl80211_parse_key_old(info, k);
460
461 if (err)
462 return err;
463
464 if (k->def && k->defmgmt)
465 return -EINVAL;
466
dbd2fd65
JB		 467 if (k->defmgmt) {
468 if (k->def_uni || !k->def_multi)
469 return -EINVAL;
470 }
471
b9454e83
JB		 472 if (k->idx != -1) {
473 if (k->defmgmt) {
474 if (k->idx < 4 || k->idx > 5)
475 return -EINVAL;
476 } else if (k->def) {
477 if (k->idx < 0 || k->idx > 3)
478 return -EINVAL;
479 } else {
480 if (k->idx < 0 || k->idx > 5)
481 return -EINVAL;
482 }
483 }
484
485 return 0;
486}
487
fffd0934
JB		 488static struct cfg80211_cached_keys *
489nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
490 struct nlattr *keys)
491{
492 struct key_parse parse;
493 struct nlattr *key;
494 struct cfg80211_cached_keys *result;
495 int rem, err, def = 0;
496
497 result = kzalloc(sizeof(*result), GFP_KERNEL);
498 if (!result)
499 return ERR_PTR(-ENOMEM);
500
501 result->def = -1;
502 result->defmgmt = -1;
503
504 nla_for_each_nested(key, keys, rem) {
505 memset(&parse, 0, sizeof(parse));
506 parse.idx = -1;
507
508 err = nl80211_parse_key_new(key, &parse);
509 if (err)
510 goto error;
511 err = -EINVAL;
512 if (!parse.p.key)
513 goto error;
514 if (parse.idx < 0 || parse.idx > 4)
515 goto error;
516 if (parse.def) {
517 if (def)
518 goto error;
519 def = 1;
520 result->def = parse.idx;
dbd2fd65
JB		 521 if (!parse.def_uni || !parse.def_multi)
522 goto error;
fffd0934
JB		 523 } else if (parse.defmgmt)
524 goto error;
525 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 526 parse.idx, false, NULL);
fffd0934
JB		 527 if (err)
528 goto error;
529 result->params[parse.idx].cipher = parse.p.cipher;
530 result->params[parse.idx].key_len = parse.p.key_len;
531 result->params[parse.idx].key = result->data[parse.idx];
532 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
533 }
534
535 return result;
536 error:
537 kfree(result);
538 return ERR_PTR(err);
539}
540
541static int nl80211_key_allowed(struct wireless_dev *wdev)
542{
543 ASSERT_WDEV_LOCK(wdev);
544
fffd0934
JB		 545 switch (wdev->iftype) {
546 case NL80211_IFTYPE_AP:
547 case NL80211_IFTYPE_AP_VLAN:
074ac8df 548 case NL80211_IFTYPE_P2P_GO:
ff973af7 549 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 550 break;
551 case NL80211_IFTYPE_ADHOC:
552 if (!wdev->current_bss)
553 return -ENOLINK;
554 break;
555 case NL80211_IFTYPE_STATION:
074ac8df 556 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 557 if (wdev->sme_state != CFG80211_SME_CONNECTED)
558 return -ENOLINK;
559 break;
560 default:
561 return -EINVAL;
562 }
563
564 return 0;
565}
566
7527a782
JB		 567static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
568{
569 struct nlattr *nl_modes = nla_nest_start(msg, attr);
570 int i;
571
572 if (!nl_modes)
573 goto nla_put_failure;
574
575 i = 0;
576 while (ifmodes) {
577 if (ifmodes & 1)
578 NLA_PUT_FLAG(msg, i);
579 ifmodes >>= 1;
580 i++;
581 }
582
583 nla_nest_end(msg, nl_modes);
584 return 0;
585
586nla_put_failure:
587 return -ENOBUFS;
588}
589
590static int nl80211_put_iface_combinations(struct wiphy *wiphy,
591 struct sk_buff *msg)
592{
593 struct nlattr *nl_combis;
594 int i, j;
595
596 nl_combis = nla_nest_start(msg,
597 NL80211_ATTR_INTERFACE_COMBINATIONS);
598 if (!nl_combis)
599 goto nla_put_failure;
600
601 for (i = 0; i < wiphy->n_iface_combinations; i++) {
602 const struct ieee80211_iface_combination *c;
603 struct nlattr *nl_combi, *nl_limits;
604
605 c = &wiphy->iface_combinations[i];
606
607 nl_combi = nla_nest_start(msg, i + 1);
608 if (!nl_combi)
609 goto nla_put_failure;
610
611 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
612 if (!nl_limits)
613 goto nla_put_failure;
614
615 for (j = 0; j < c->n_limits; j++) {
616 struct nlattr *nl_limit;
617
618 nl_limit = nla_nest_start(msg, j + 1);
619 if (!nl_limit)
620 goto nla_put_failure;
621 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
622 c->limits[j].max);
623 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
624 c->limits[j].types))
625 goto nla_put_failure;
626 nla_nest_end(msg, nl_limit);
627 }
628
629 nla_nest_end(msg, nl_limits);
630
631 if (c->beacon_int_infra_match)
632 NLA_PUT_FLAG(msg,
633 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
634 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
635 c->num_different_channels);
636 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
637 c->max_interfaces);
638
639 nla_nest_end(msg, nl_combi);
640 }
641
642 nla_nest_end(msg, nl_combis);
643
644 return 0;
645nla_put_failure:
646 return -ENOBUFS;
647}
648
55682965
JB		 649static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
650 struct cfg80211_registered_device *dev)
651{
652 void *hdr;
ee688b00
JB		 653 struct nlattr *nl_bands, *nl_band;
654 struct nlattr *nl_freqs, *nl_freq;
655 struct nlattr *nl_rates, *nl_rate;
8fdc621d 656 struct nlattr *nl_cmds;
ee688b00
JB		 657 enum ieee80211_band band;
658 struct ieee80211_channel *chan;
659 struct ieee80211_rate *rate;
660 int i;
2e161f78
JB		 661 const struct ieee80211_txrx_stypes *mgmt_stypes =
662 dev->wiphy.mgmt_stypes;
55682965
JB		 663
664 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
665 if (!hdr)
666 return -1;
667
b5850a7a 668 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 669 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 670
f5ea9120
JB		 671 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
672 cfg80211_rdev_list_generation);
673
b9a5f8ca
JM		 674 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
675 dev->wiphy.retry_short);
676 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
677 dev->wiphy.retry_long);
678 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
679 dev->wiphy.frag_threshold);
680 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
681 dev->wiphy.rts_threshold);
81077e82
LT		 682 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
683 dev->wiphy.coverage_class);
2a519311
JB		 684 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
685 dev->wiphy.max_scan_ssids);
18a83659
JB		 686 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
687 dev->wiphy.max_scan_ie_len);
ee688b00 688
e31b8213
JB		 689 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
690 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 691 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
692 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
e31b8213 693
25e47c18
JB		 694 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
695 sizeof(u32) * dev->wiphy.n_cipher_suites,
696 dev->wiphy.cipher_suites);
697
67fbb16b
SO		 698 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
699 dev->wiphy.max_num_pmkids);
700
c0692b8f
JB		 701 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
702 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
703
39fd5de4
BR		 704 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
705 dev->wiphy.available_antennas_tx);
706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
707 dev->wiphy.available_antennas_rx);
708
7f531e03
BR		 709 if ((dev->wiphy.available_antennas_tx ||
710 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 711 u32 tx_ant = 0, rx_ant = 0;
712 int res;
713 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
714 if (!res) {
715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
717 }
718 }
719
7527a782
JB		 720 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
721 dev->wiphy.interface_modes))
f59ac048
LR		 722 goto nla_put_failure;
723
ee688b00
JB		 724 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
725 if (!nl_bands)
726 goto nla_put_failure;
727
728 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
729 if (!dev->wiphy.bands[band])
730 continue;
731
732 nl_band = nla_nest_start(msg, band);
733 if (!nl_band)
734 goto nla_put_failure;
735
d51626df
JB		 736 /* add HT info */
737 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
738 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
739 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
740 &dev->wiphy.bands[band]->ht_cap.mcs);
741 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
742 dev->wiphy.bands[band]->ht_cap.cap);
743 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
744 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
745 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
746 dev->wiphy.bands[band]->ht_cap.ampdu_density);
747 }
748
ee688b00
JB		 749 /* add frequencies */
750 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
751 if (!nl_freqs)
752 goto nla_put_failure;
753
754 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
755 nl_freq = nla_nest_start(msg, i);
756 if (!nl_freq)
757 goto nla_put_failure;
758
759 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 760
761 if (nl80211_msg_put_channel(msg, chan))
762 goto nla_put_failure;
e2f367f2 763
ee688b00
JB		 764 nla_nest_end(msg, nl_freq);
765 }
766
767 nla_nest_end(msg, nl_freqs);
768
769 /* add bitrates */
770 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
771 if (!nl_rates)
772 goto nla_put_failure;
773
774 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
775 nl_rate = nla_nest_start(msg, i);
776 if (!nl_rate)
777 goto nla_put_failure;
778
779 rate = &dev->wiphy.bands[band]->bitrates[i];
780 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
781 rate->bitrate);
782 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
783 NLA_PUT_FLAG(msg,
784 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
785
786 nla_nest_end(msg, nl_rate);
787 }
788
789 nla_nest_end(msg, nl_rates);
790
791 nla_nest_end(msg, nl_band);
792 }
793 nla_nest_end(msg, nl_bands);
794
8fdc621d
JB		 795 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
796 if (!nl_cmds)
797 goto nla_put_failure;
798
799 i = 0;
800#define CMD(op, n) \
801 do { \
802 if (dev->ops->op) { \
803 i++; \
804 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
805 } \
806 } while (0)
807
808 CMD(add_virtual_intf, NEW_INTERFACE);
809 CMD(change_virtual_intf, SET_INTERFACE);
810 CMD(add_key, NEW_KEY);
811 CMD(add_beacon, NEW_BEACON);
812 CMD(add_station, NEW_STATION);
813 CMD(add_mpath, NEW_MPATH);
24bdd9f4 814 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 815 CMD(change_bss, SET_BSS);
636a5d36
JM		 816 CMD(auth, AUTHENTICATE);
817 CMD(assoc, ASSOCIATE);
818 CMD(deauth, DEAUTHENTICATE);
819 CMD(disassoc, DISASSOCIATE);
04a773ad 820 CMD(join_ibss, JOIN_IBSS);
29cbe68c 821 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 822 CMD(set_pmksa, SET_PMKSA);
823 CMD(del_pmksa, DEL_PMKSA);
824 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 825 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 826 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 827 CMD(mgmt_tx, FRAME);
f7ca38df 828 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 829 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 830 i++;
831 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
832 }
f444de05 833 CMD(set_channel, SET_CHANNEL);
e8347eba 834 CMD(set_wds_peer, SET_WDS_PEER);
807f8a8c
LC		 835 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
836 CMD(sched_scan_start, START_SCHED_SCAN);
8fdc621d
JB		 837
838#undef CMD
b23aa676 839
6829c878 840 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 841 i++;
842 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
843 }
844
6829c878 845 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 846 i++;
847 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
848 }
849
8fdc621d
JB		 850 nla_nest_end(msg, nl_cmds);
851
a293911d
JB		 852 if (dev->ops->remain_on_channel)
853 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
854 dev->wiphy.max_remain_on_channel_duration);
855
f7ca38df
JB		 856 /* for now at least assume all drivers have it */
857 if (dev->ops->mgmt_tx)
858 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
859
2e161f78
JB		 860 if (mgmt_stypes) {
861 u16 stypes;
862 struct nlattr *nl_ftypes, *nl_ifs;
863 enum nl80211_iftype ift;
864
865 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
866 if (!nl_ifs)
867 goto nla_put_failure;
868
869 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
870 nl_ftypes = nla_nest_start(msg, ift);
871 if (!nl_ftypes)
872 goto nla_put_failure;
873 i = 0;
874 stypes = mgmt_stypes[ift].tx;
875 while (stypes) {
876 if (stypes & 1)
877 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
878 (i << 4) | IEEE80211_FTYPE_MGMT);
879 stypes >>= 1;
880 i++;
881 }
882 nla_nest_end(msg, nl_ftypes);
883 }
884
74b70a4e
JB		 885 nla_nest_end(msg, nl_ifs);
886
2e161f78
JB		 887 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
888 if (!nl_ifs)
889 goto nla_put_failure;
890
891 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
892 nl_ftypes = nla_nest_start(msg, ift);
893 if (!nl_ftypes)
894 goto nla_put_failure;
895 i = 0;
896 stypes = mgmt_stypes[ift].rx;
897 while (stypes) {
898 if (stypes & 1)
899 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
900 (i << 4) | IEEE80211_FTYPE_MGMT);
901 stypes >>= 1;
902 i++;
903 }
904 nla_nest_end(msg, nl_ftypes);
905 }
906 nla_nest_end(msg, nl_ifs);
907 }
908
ff1b6e69
JB		 909 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
910 struct nlattr *nl_wowlan;
911
912 nl_wowlan = nla_nest_start(msg,
913 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
914 if (!nl_wowlan)
915 goto nla_put_failure;
916
917 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
918 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
919 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
920 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
921 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
922 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
923 if (dev->wiphy.wowlan.n_patterns) {
924 struct nl80211_wowlan_pattern_support pat = {
925 .max_patterns = dev->wiphy.wowlan.n_patterns,
926 .min_pattern_len =
927 dev->wiphy.wowlan.pattern_min_len,
928 .max_pattern_len =
929 dev->wiphy.wowlan.pattern_max_len,
930 };
931 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
932 sizeof(pat), &pat);
933 }
934
935 nla_nest_end(msg, nl_wowlan);
936 }
937
7527a782
JB		 938 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
939 dev->wiphy.software_iftypes))
940 goto nla_put_failure;
941
942 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
943 goto nla_put_failure;
944
55682965
JB		 945 return genlmsg_end(msg, hdr);
946
947 nla_put_failure:
bc3ed28c
TG		 948 genlmsg_cancel(msg, hdr);
949 return -EMSGSIZE;
55682965
JB		 950}
951
952static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
953{
954 int idx = 0;
955 int start = cb->args[0];
956 struct cfg80211_registered_device *dev;
957
a1794390 958 mutex_lock(&cfg80211_mutex);
79c97e97 959 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 960 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
961 continue;
b4637271 962 if (++idx <= start)
55682965
JB		 963 continue;
964 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
965 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 966 dev) < 0) {
967 idx--;
55682965 968 break;
b4637271 969 }
55682965 970 }
a1794390 971 mutex_unlock(&cfg80211_mutex);
55682965
JB		 972
973 cb->args[0] = idx;
974
975 return skb->len;
976}
977
978static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
979{
980 struct sk_buff *msg;
4c476991 981 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 982
fd2120ca 983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 984 if (!msg)
4c476991 985 return -ENOMEM;
55682965 986
4c476991
JB		 987 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
988 nlmsg_free(msg);
989 return -ENOBUFS;
990 }
55682965 991
134e6375 992 return genlmsg_reply(msg, info);
55682965
JB		 993}
994
31888487
JM		 995static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
996 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
997 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
998 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
999 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1000 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1001};
1002
1003static int parse_txq_params(struct nlattr *tb[],
1004 struct ieee80211_txq_params *txq_params)
1005{
1006 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1007 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1008 !tb[NL80211_TXQ_ATTR_AIFS])
1009 return -EINVAL;
1010
1011 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1012 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1013 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1014 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1015 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1016
1017 return 0;
1018}
1019
f444de05
JB		 1020static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1021{
1022 /*
1023 * You can only set the channel explicitly for AP, mesh
1024 * and WDS type interfaces; all others have their channel
1025 * managed via their respective "establish a connection"
1026 * command (connect, join, ...)
1027 *
1028 * Monitors are special as they are normally slaved to
1029 * whatever else is going on, so they behave as though
1030 * you tried setting the wiphy channel itself.
1031 */
1032 return !wdev ||
1033 wdev->iftype == NL80211_IFTYPE_AP ||
1034 wdev->iftype == NL80211_IFTYPE_WDS ||
1035 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1036 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1037 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1038}
1039
1040static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1041 struct wireless_dev *wdev,
1042 struct genl_info *info)
1043{
1044 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1045 u32 freq;
1046 int result;
1047
1048 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1049 return -EINVAL;
1050
1051 if (!nl80211_can_set_dev_channel(wdev))
1052 return -EOPNOTSUPP;
1053
1054 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1055 channel_type = nla_get_u32(info->attrs[
1056 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1057 if (channel_type != NL80211_CHAN_NO_HT &&
1058 channel_type != NL80211_CHAN_HT20 &&
1059 channel_type != NL80211_CHAN_HT40PLUS &&
1060 channel_type != NL80211_CHAN_HT40MINUS)
1061 return -EINVAL;
1062 }
1063
1064 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1065
1066 mutex_lock(&rdev->devlist_mtx);
1067 if (wdev) {
1068 wdev_lock(wdev);
1069 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1070 wdev_unlock(wdev);
1071 } else {
1072 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1073 }
1074 mutex_unlock(&rdev->devlist_mtx);
1075
1076 return result;
1077}
1078
1079static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1080{
4c476991
JB		 1081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1082 struct net_device *netdev = info->user_ptr[1];
f444de05 1083
4c476991 1084 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1085}
1086
e8347eba
BJ		 1087static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1088{
43b19952
JB		 1089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1090 struct net_device *dev = info->user_ptr[1];
1091 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1092 const u8 *bssid;
e8347eba
BJ		 1093
1094 if (!info->attrs[NL80211_ATTR_MAC])
1095 return -EINVAL;
1096
43b19952
JB		 1097 if (netif_running(dev))
1098 return -EBUSY;
e8347eba 1099
43b19952
JB		 1100 if (!rdev->ops->set_wds_peer)
1101 return -EOPNOTSUPP;
e8347eba 1102
43b19952
JB		 1103 if (wdev->iftype != NL80211_IFTYPE_WDS)
1104 return -EOPNOTSUPP;
e8347eba
BJ		 1105
1106 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1107 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1108}
1109
1110
55682965
JB		 1111static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1112{
1113 struct cfg80211_registered_device *rdev;
f444de05
JB		 1114 struct net_device *netdev = NULL;
1115 struct wireless_dev *wdev;
a1e567c8 1116 int result = 0, rem_txq_params = 0;
31888487 1117 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1118 u32 changed;
1119 u8 retry_short = 0, retry_long = 0;
1120 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1121 u8 coverage_class = 0;
55682965 1122
f444de05
JB		 1123 /*
1124 * Try to find the wiphy and netdev. Normally this
1125 * function shouldn't need the netdev, but this is
1126 * done for backward compatibility -- previously
1127 * setting the channel was done per wiphy, but now
1128 * it is per netdev. Previous userland like hostapd
1129 * also passed a netdev to set_wiphy, so that it is
1130 * possible to let that go to the right netdev!
1131 */
4bbf4d56
JB		 1132 mutex_lock(&cfg80211_mutex);
1133
f444de05
JB		 1134 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1135 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1136
1137 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1138 if (netdev && netdev->ieee80211_ptr) {
1139 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1140 mutex_lock(&rdev->mtx);
1141 } else
1142 netdev = NULL;
4bbf4d56
JB		 1143 }
1144
f444de05
JB		 1145 if (!netdev) {
1146 rdev = __cfg80211_rdev_from_info(info);
1147 if (IS_ERR(rdev)) {
1148 mutex_unlock(&cfg80211_mutex);
4c476991 1149 return PTR_ERR(rdev);
f444de05
JB		 1150 }
1151 wdev = NULL;
1152 netdev = NULL;
1153 result = 0;
1154
1155 mutex_lock(&rdev->mtx);
1156 } else if (netif_running(netdev) &&
1157 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1158 wdev = netdev->ieee80211_ptr;
1159 else
1160 wdev = NULL;
1161
1162 /*
1163 * end workaround code, by now the rdev is available
1164 * and locked, and wdev may or may not be NULL.
1165 */
4bbf4d56
JB		 1166
1167 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1168 result = cfg80211_dev_rename(
1169 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1170
1171 mutex_unlock(&cfg80211_mutex);
1172
1173 if (result)
1174 goto bad_res;
31888487
JM		 1175
1176 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1177 struct ieee80211_txq_params txq_params;
1178 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1179
1180 if (!rdev->ops->set_txq_params) {
1181 result = -EOPNOTSUPP;
1182 goto bad_res;
1183 }
1184
1185 nla_for_each_nested(nl_txq_params,
1186 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1187 rem_txq_params) {
1188 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1189 nla_data(nl_txq_params),
1190 nla_len(nl_txq_params),
1191 txq_params_policy);
1192 result = parse_txq_params(tb, &txq_params);
1193 if (result)
1194 goto bad_res;
1195
1196 result = rdev->ops->set_txq_params(&rdev->wiphy,
1197 &txq_params);
1198 if (result)
1199 goto bad_res;
1200 }
1201 }
55682965 1202
72bdcf34 1203 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1204 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1205 if (result)
1206 goto bad_res;
1207 }
1208
98d2ff8b
JO		 1209 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1210 enum nl80211_tx_power_setting type;
1211 int idx, mbm = 0;
1212
1213 if (!rdev->ops->set_tx_power) {
60ea385f 1214 result = -EOPNOTSUPP;
98d2ff8b
JO		 1215 goto bad_res;
1216 }
1217
1218 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1219 type = nla_get_u32(info->attrs[idx]);
1220
1221 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1222 (type != NL80211_TX_POWER_AUTOMATIC)) {
1223 result = -EINVAL;
1224 goto bad_res;
1225 }
1226
1227 if (type != NL80211_TX_POWER_AUTOMATIC) {
1228 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1229 mbm = nla_get_u32(info->attrs[idx]);
1230 }
1231
1232 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1233 if (result)
1234 goto bad_res;
1235 }
1236
afe0cbf8
BR		 1237 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1238 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1239 u32 tx_ant, rx_ant;
7f531e03
BR		 1240 if ((!rdev->wiphy.available_antennas_tx &&
1241 !rdev->wiphy.available_antennas_rx) ||
1242 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1243 result = -EOPNOTSUPP;
1244 goto bad_res;
1245 }
1246
1247 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1248 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1249
a7ffac95 1250 /* reject antenna configurations which don't match the
7f531e03
BR		 1251 * available antenna masks, except for the "all" mask */
1252 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1253 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1254 result = -EINVAL;
1255 goto bad_res;
1256 }
1257
7f531e03
BR		 1258 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1259 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1260
afe0cbf8
BR		 1261 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1262 if (result)
1263 goto bad_res;
1264 }
1265
b9a5f8ca
JM		 1266 changed = 0;
1267
1268 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1269 retry_short = nla_get_u8(
1270 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1271 if (retry_short == 0) {
1272 result = -EINVAL;
1273 goto bad_res;
1274 }
1275 changed |= WIPHY_PARAM_RETRY_SHORT;
1276 }
1277
1278 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1279 retry_long = nla_get_u8(
1280 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1281 if (retry_long == 0) {
1282 result = -EINVAL;
1283 goto bad_res;
1284 }
1285 changed |= WIPHY_PARAM_RETRY_LONG;
1286 }
1287
1288 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1289 frag_threshold = nla_get_u32(
1290 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1291 if (frag_threshold < 256) {
1292 result = -EINVAL;
1293 goto bad_res;
1294 }
1295 if (frag_threshold != (u32) -1) {
1296 /*
1297 * Fragments (apart from the last one) are required to
1298 * have even length. Make the fragmentation code
1299 * simpler by stripping LSB should someone try to use
1300 * odd threshold value.
1301 */
1302 frag_threshold &= ~0x1;
1303 }
1304 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1305 }
1306
1307 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1308 rts_threshold = nla_get_u32(
1309 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1310 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1311 }
1312
81077e82
LT		 1313 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1314 coverage_class = nla_get_u8(
1315 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1316 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1317 }
1318
b9a5f8ca
JM		 1319 if (changed) {
1320 u8 old_retry_short, old_retry_long;
1321 u32 old_frag_threshold, old_rts_threshold;
81077e82 1322 u8 old_coverage_class;
b9a5f8ca
JM		 1323
1324 if (!rdev->ops->set_wiphy_params) {
1325 result = -EOPNOTSUPP;
1326 goto bad_res;
1327 }
1328
1329 old_retry_short = rdev->wiphy.retry_short;
1330 old_retry_long = rdev->wiphy.retry_long;
1331 old_frag_threshold = rdev->wiphy.frag_threshold;
1332 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1333 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1334
1335 if (changed & WIPHY_PARAM_RETRY_SHORT)
1336 rdev->wiphy.retry_short = retry_short;
1337 if (changed & WIPHY_PARAM_RETRY_LONG)
1338 rdev->wiphy.retry_long = retry_long;
1339 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1340 rdev->wiphy.frag_threshold = frag_threshold;
1341 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1342 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1343 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1344 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1345
1346 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1347 if (result) {
1348 rdev->wiphy.retry_short = old_retry_short;
1349 rdev->wiphy.retry_long = old_retry_long;
1350 rdev->wiphy.frag_threshold = old_frag_threshold;
1351 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1352 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1353 }
1354 }
72bdcf34 1355
306d6112 1356 bad_res:
4bbf4d56 1357 mutex_unlock(&rdev->mtx);
f444de05
JB		 1358 if (netdev)
1359 dev_put(netdev);
55682965
JB		 1360 return result;
1361}
1362
1363
1364static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1365 struct cfg80211_registered_device *rdev,
55682965
JB		 1366 struct net_device *dev)
1367{
1368 void *hdr;
1369
1370 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1371 if (!hdr)
1372 return -1;
1373
1374 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1375 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1376 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1377 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1378
1379 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1380 rdev->devlist_generation ^
1381 (cfg80211_rdev_list_generation << 2));
1382
55682965
JB		 1383 return genlmsg_end(msg, hdr);
1384
1385 nla_put_failure:
bc3ed28c
TG		 1386 genlmsg_cancel(msg, hdr);
1387 return -EMSGSIZE;
55682965
JB		 1388}
1389
1390static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1391{
1392 int wp_idx = 0;
1393 int if_idx = 0;
1394 int wp_start = cb->args[0];
1395 int if_start = cb->args[1];
f5ea9120 1396 struct cfg80211_registered_device *rdev;
55682965
JB		 1397 struct wireless_dev *wdev;
1398
a1794390 1399 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1400 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1401 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1402 continue;
bba95fef
JB		 1403 if (wp_idx < wp_start) {
1404 wp_idx++;
55682965 1405 continue;
bba95fef 1406 }
55682965
JB		 1407 if_idx = 0;
1408
f5ea9120
JB		 1409 mutex_lock(&rdev->devlist_mtx);
1410 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1411 if (if_idx < if_start) {
1412 if_idx++;
55682965 1413 continue;
bba95fef 1414 }
55682965
JB		 1415 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1416 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1417 rdev, wdev->netdev) < 0) {
1418 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1419 goto out;
1420 }
1421 if_idx++;
55682965 1422 }
f5ea9120 1423 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1424
1425 wp_idx++;
55682965 1426 }
bba95fef 1427 out:
a1794390 1428 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1429
1430 cb->args[0] = wp_idx;
1431 cb->args[1] = if_idx;
1432
1433 return skb->len;
1434}
1435
1436static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1437{
1438 struct sk_buff *msg;
4c476991
JB		 1439 struct cfg80211_registered_device *dev = info->user_ptr[0];
1440 struct net_device *netdev = info->user_ptr[1];
55682965 1441
fd2120ca 1442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1443 if (!msg)
4c476991 1444 return -ENOMEM;
55682965 1445
d726405a 1446 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1447 dev, netdev) < 0) {
1448 nlmsg_free(msg);
1449 return -ENOBUFS;
1450 }
55682965 1451
134e6375 1452 return genlmsg_reply(msg, info);
55682965
JB		 1453}
1454
66f7ac50
MW		 1455static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1456 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1457 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1458 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1459 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1460 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1461};
1462
1463static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1464{
1465 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1466 int flag;
1467
1468 *mntrflags = 0;
1469
1470 if (!nla)
1471 return -EINVAL;
1472
1473 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1474 nla, mntr_flags_policy))
1475 return -EINVAL;
1476
1477 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1478 if (flags[flag])
1479 *mntrflags |= (1<<flag);
1480
1481 return 0;
1482}
1483
9bc383de 1484static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1485 struct net_device *netdev, u8 use_4addr,
1486 enum nl80211_iftype iftype)
9bc383de 1487{
ad4bb6f8 1488 if (!use_4addr) {
f350a0a8 1489 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1490 return -EBUSY;
9bc383de 1491 return 0;
ad4bb6f8 1492 }
9bc383de
JB		 1493
1494 switch (iftype) {
1495 case NL80211_IFTYPE_AP_VLAN:
1496 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1497 return 0;
1498 break;
1499 case NL80211_IFTYPE_STATION:
1500 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1501 return 0;
1502 break;
1503 default:
1504 break;
1505 }
1506
1507 return -EOPNOTSUPP;
1508}
1509
55682965
JB		 1510static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1511{
4c476991 1512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1513 struct vif_params params;
e36d56b6 1514 int err;
04a773ad 1515 enum nl80211_iftype otype, ntype;
4c476991 1516 struct net_device *dev = info->user_ptr[1];
92ffe055 1517 u32 _flags, *flags = NULL;
ac7f9cfa 1518 bool change = false;
55682965 1519
2ec600d6
LCC		 1520 memset(&params, 0, sizeof(params));
1521
04a773ad 1522 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1523
723b038d 1524 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1525 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1526 if (otype != ntype)
ac7f9cfa 1527 change = true;
4c476991
JB		 1528 if (ntype > NL80211_IFTYPE_MAX)
1529 return -EINVAL;
723b038d
JB		 1530 }
1531
92ffe055 1532 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1533 struct wireless_dev *wdev = dev->ieee80211_ptr;
1534
4c476991
JB		 1535 if (ntype != NL80211_IFTYPE_MESH_POINT)
1536 return -EINVAL;
29cbe68c
JB		 1537 if (netif_running(dev))
1538 return -EBUSY;
1539
1540 wdev_lock(wdev);
1541 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1542 IEEE80211_MAX_MESH_ID_LEN);
1543 wdev->mesh_id_up_len =
1544 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1545 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1546 wdev->mesh_id_up_len);
1547 wdev_unlock(wdev);
2ec600d6
LCC		 1548 }
1549
8b787643
FF		 1550 if (info->attrs[NL80211_ATTR_4ADDR]) {
1551 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1552 change = true;
ad4bb6f8 1553 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1554 if (err)
4c476991 1555 return err;
8b787643
FF		 1556 } else {
1557 params.use_4addr = -1;
1558 }
1559
92ffe055 1560 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1561 if (ntype != NL80211_IFTYPE_MONITOR)
1562 return -EINVAL;
92ffe055
JB		 1563 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1564 &_flags);
ac7f9cfa 1565 if (err)
4c476991 1566 return err;
ac7f9cfa
JB		 1567
1568 flags = &_flags;
1569 change = true;
92ffe055 1570 }
3b85875a 1571
ac7f9cfa 1572 if (change)
3d54d255 1573 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1574 else
1575 err = 0;
60719ffd 1576
9bc383de
JB		 1577 if (!err && params.use_4addr != -1)
1578 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1579
55682965
JB		 1580 return err;
1581}
1582
1583static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1584{
4c476991 1585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1586 struct vif_params params;
f9e10ce4 1587 struct net_device *dev;
55682965
JB		 1588 int err;
1589 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1590 u32 flags;
55682965 1591
2ec600d6
LCC		 1592 memset(&params, 0, sizeof(params));
1593
55682965
JB		 1594 if (!info->attrs[NL80211_ATTR_IFNAME])
1595 return -EINVAL;
1596
1597 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1598 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1599 if (type > NL80211_IFTYPE_MAX)
1600 return -EINVAL;
1601 }
1602
79c97e97 1603 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1604 !(rdev->wiphy.interface_modes & (1 << type)))
1605 return -EOPNOTSUPP;
55682965 1606
9bc383de 1607 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1608 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1609 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1610 if (err)
4c476991 1611 return err;
9bc383de 1612 }
8b787643 1613
66f7ac50
MW		 1614 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1615 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1616 &flags);
f9e10ce4 1617 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1618 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1619 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1620 if (IS_ERR(dev))
1621 return PTR_ERR(dev);
2ec600d6 1622
29cbe68c
JB		 1623 if (type == NL80211_IFTYPE_MESH_POINT &&
1624 info->attrs[NL80211_ATTR_MESH_ID]) {
1625 struct wireless_dev *wdev = dev->ieee80211_ptr;
1626
1627 wdev_lock(wdev);
1628 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1629 IEEE80211_MAX_MESH_ID_LEN);
1630 wdev->mesh_id_up_len =
1631 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1632 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1633 wdev->mesh_id_up_len);
1634 wdev_unlock(wdev);
1635 }
1636
f9e10ce4 1637 return 0;
55682965
JB		 1638}
1639
1640static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1641{
4c476991
JB		 1642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1643 struct net_device *dev = info->user_ptr[1];
55682965 1644
4c476991
JB		 1645 if (!rdev->ops->del_virtual_intf)
1646 return -EOPNOTSUPP;
55682965 1647
4c476991 1648 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1649}
1650
41ade00f
JB		 1651struct get_key_cookie {
1652 struct sk_buff *msg;
1653 int error;
b9454e83 1654 int idx;
41ade00f
JB		 1655};
1656
1657static void get_key_callback(void *c, struct key_params *params)
1658{
b9454e83 1659 struct nlattr *key;
41ade00f
JB		 1660 struct get_key_cookie *cookie = c;
1661
1662 if (params->key)
1663 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1664 params->key_len, params->key);
1665
1666 if (params->seq)
1667 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1668 params->seq_len, params->seq);
1669
1670 if (params->cipher)
1671 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1672 params->cipher);
1673
b9454e83
JB		 1674 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1675 if (!key)
1676 goto nla_put_failure;
1677
1678 if (params->key)
1679 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1680 params->key_len, params->key);
1681
1682 if (params->seq)
1683 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1684 params->seq_len, params->seq);
1685
1686 if (params->cipher)
1687 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1688 params->cipher);
1689
1690 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1691
1692 nla_nest_end(cookie->msg, key);
1693
41ade00f
JB		 1694 return;
1695 nla_put_failure:
1696 cookie->error = 1;
1697}
1698
1699static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1700{
4c476991 1701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1702 int err;
4c476991 1703 struct net_device *dev = info->user_ptr[1];
41ade00f 1704 u8 key_idx = 0;
e31b8213
JB		 1705 const u8 *mac_addr = NULL;
1706 bool pairwise;
41ade00f
JB		 1707 struct get_key_cookie cookie = {
1708 .error = 0,
1709 };
1710 void *hdr;
1711 struct sk_buff *msg;
1712
1713 if (info->attrs[NL80211_ATTR_KEY_IDX])
1714 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1715
3cfcf6ac 1716 if (key_idx > 5)
41ade00f
JB		 1717 return -EINVAL;
1718
1719 if (info->attrs[NL80211_ATTR_MAC])
1720 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1721
e31b8213
JB		 1722 pairwise = !!mac_addr;
1723 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1724 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1725 if (kt >= NUM_NL80211_KEYTYPES)
1726 return -EINVAL;
1727 if (kt != NL80211_KEYTYPE_GROUP &&
1728 kt != NL80211_KEYTYPE_PAIRWISE)
1729 return -EINVAL;
1730 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1731 }
1732
4c476991
JB		 1733 if (!rdev->ops->get_key)
1734 return -EOPNOTSUPP;
41ade00f 1735
fd2120ca 1736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1737 if (!msg)
1738 return -ENOMEM;
41ade00f
JB		 1739
1740 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1741 NL80211_CMD_NEW_KEY);
4c476991
JB		 1742 if (IS_ERR(hdr))
1743 return PTR_ERR(hdr);
41ade00f
JB		 1744
1745 cookie.msg = msg;
b9454e83 1746 cookie.idx = key_idx;
41ade00f
JB		 1747
1748 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1749 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1750 if (mac_addr)
1751 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1752
e31b8213
JB		 1753 if (pairwise && mac_addr &&
1754 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1755 return -ENOENT;
1756
1757 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1758 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1759
1760 if (err)
6c95e2a2 1761 goto free_msg;
41ade00f
JB		 1762
1763 if (cookie.error)
1764 goto nla_put_failure;
1765
1766 genlmsg_end(msg, hdr);
4c476991 1767 return genlmsg_reply(msg, info);
41ade00f
JB		 1768
1769 nla_put_failure:
1770 err = -ENOBUFS;
6c95e2a2 1771 free_msg:
41ade00f 1772 nlmsg_free(msg);
41ade00f
JB		 1773 return err;
1774}
1775
1776static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1777{
4c476991 1778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1779 struct key_parse key;
41ade00f 1780 int err;
4c476991 1781 struct net_device *dev = info->user_ptr[1];
41ade00f 1782
b9454e83
JB		 1783 err = nl80211_parse_key(info, &key);
1784 if (err)
1785 return err;
41ade00f 1786
b9454e83 1787 if (key.idx < 0)
41ade00f
JB		 1788 return -EINVAL;
1789
b9454e83
JB		 1790 /* only support setting default key */
1791 if (!key.def && !key.defmgmt)
41ade00f
JB		 1792 return -EINVAL;
1793
dbd2fd65 1794 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1795
dbd2fd65
JB		 1796 if (key.def) {
1797 if (!rdev->ops->set_default_key) {
1798 err = -EOPNOTSUPP;
1799 goto out;
1800 }
41ade00f 1801
dbd2fd65
JB		 1802 err = nl80211_key_allowed(dev->ieee80211_ptr);
1803 if (err)
1804 goto out;
1805
dbd2fd65
JB		 1806 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1807 key.def_uni, key.def_multi);
1808
1809 if (err)
1810 goto out;
fffd0934 1811
3d23e349 1812#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1813 dev->ieee80211_ptr->wext.default_key = key.idx;
1814#endif
1815 } else {
1816 if (key.def_uni || !key.def_multi) {
1817 err = -EINVAL;
1818 goto out;
1819 }
1820
1821 if (!rdev->ops->set_default_mgmt_key) {
1822 err = -EOPNOTSUPP;
1823 goto out;
1824 }
1825
1826 err = nl80211_key_allowed(dev->ieee80211_ptr);
1827 if (err)
1828 goto out;
1829
1830 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1831 dev, key.idx);
1832 if (err)
1833 goto out;
1834
1835#ifdef CONFIG_CFG80211_WEXT
1836 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1837#endif
dbd2fd65
JB		 1838 }
1839
1840 out:
fffd0934 1841 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1842
41ade00f
JB		 1843 return err;
1844}
1845
1846static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1847{
4c476991 1848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1849 int err;
4c476991 1850 struct net_device *dev = info->user_ptr[1];
b9454e83 1851 struct key_parse key;
e31b8213 1852 const u8 *mac_addr = NULL;
41ade00f 1853
b9454e83
JB		 1854 err = nl80211_parse_key(info, &key);
1855 if (err)
1856 return err;
41ade00f 1857
b9454e83 1858 if (!key.p.key)
41ade00f
JB		 1859 return -EINVAL;
1860
41ade00f
JB		 1861 if (info->attrs[NL80211_ATTR_MAC])
1862 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1863
e31b8213
JB		 1864 if (key.type == -1) {
1865 if (mac_addr)
1866 key.type = NL80211_KEYTYPE_PAIRWISE;
1867 else
1868 key.type = NL80211_KEYTYPE_GROUP;
1869 }
1870
1871 /* for now */
1872 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1873 key.type != NL80211_KEYTYPE_GROUP)
1874 return -EINVAL;
1875
4c476991
JB		 1876 if (!rdev->ops->add_key)
1877 return -EOPNOTSUPP;
25e47c18 1878
e31b8213
JB		 1879 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1880 key.type == NL80211_KEYTYPE_PAIRWISE,
1881 mac_addr))
4c476991 1882 return -EINVAL;
41ade00f 1883
fffd0934
JB		 1884 wdev_lock(dev->ieee80211_ptr);
1885 err = nl80211_key_allowed(dev->ieee80211_ptr);
1886 if (!err)
1887 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1888 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1889 mac_addr, &key.p);
1890 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1891
41ade00f
JB		 1892 return err;
1893}
1894
1895static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1896{
4c476991 1897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1898 int err;
4c476991 1899 struct net_device *dev = info->user_ptr[1];
41ade00f 1900 u8 *mac_addr = NULL;
b9454e83 1901 struct key_parse key;
41ade00f 1902
b9454e83
JB		 1903 err = nl80211_parse_key(info, &key);
1904 if (err)
1905 return err;
41ade00f
JB		 1906
1907 if (info->attrs[NL80211_ATTR_MAC])
1908 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1909
e31b8213
JB		 1910 if (key.type == -1) {
1911 if (mac_addr)
1912 key.type = NL80211_KEYTYPE_PAIRWISE;
1913 else
1914 key.type = NL80211_KEYTYPE_GROUP;
1915 }
1916
1917 /* for now */
1918 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1919 key.type != NL80211_KEYTYPE_GROUP)
1920 return -EINVAL;
1921
4c476991
JB		 1922 if (!rdev->ops->del_key)
1923 return -EOPNOTSUPP;
41ade00f 1924
fffd0934
JB		 1925 wdev_lock(dev->ieee80211_ptr);
1926 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1927
1928 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1929 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1930 err = -ENOENT;
1931
fffd0934 1932 if (!err)
e31b8213
JB		 1933 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1934 key.type == NL80211_KEYTYPE_PAIRWISE,
1935 mac_addr);
41ade00f 1936
3d23e349 1937#ifdef CONFIG_CFG80211_WEXT
08645126 1938 if (!err) {
b9454e83 1939 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1940 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1941 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1942 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1943 }
1944#endif
fffd0934 1945 wdev_unlock(dev->ieee80211_ptr);
08645126 1946
41ade00f
JB		 1947 return err;
1948}
1949
ed1b6cc7
JB		 1950static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1951{
1952 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1953 struct beacon_parameters *info);
4c476991
JB		 1954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1955 struct net_device *dev = info->user_ptr[1];
56d1893d 1956 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 1957 struct beacon_parameters params;
56d1893d 1958 int haveinfo = 0, err;
ed1b6cc7 1959
f4a11bb0
JB		 1960 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1961 return -EINVAL;
1962
074ac8df 1963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1965 return -EOPNOTSUPP;
eec60b03 1966
56d1893d
JB		 1967 memset(&params, 0, sizeof(params));
1968
ed1b6cc7
JB		 1969 switch (info->genlhdr->cmd) {
1970 case NL80211_CMD_NEW_BEACON:
1971 /* these are required for NEW_BEACON */
1972 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1973 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1974 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1975 return -EINVAL;
ed1b6cc7 1976
56d1893d
JB		 1977 params.interval =
1978 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1979 params.dtim_period =
1980 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1981
1982 err = cfg80211_validate_beacon_int(rdev, params.interval);
1983 if (err)
1984 return err;
1985
79c97e97 1986 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1987 break;
1988 case NL80211_CMD_SET_BEACON:
79c97e97 1989 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1990 break;
1991 default:
1992 WARN_ON(1);
4c476991 1993 return -EOPNOTSUPP;
ed1b6cc7
JB		 1994 }
1995
4c476991
JB		 1996 if (!call)
1997 return -EOPNOTSUPP;
ed1b6cc7 1998
ed1b6cc7
JB		 1999 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2000 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2001 params.head_len =
2002 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2003 haveinfo = 1;
2004 }
2005
2006 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2007 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2008 params.tail_len =
2009 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2010 haveinfo = 1;
2011 }
2012
4c476991
JB		 2013 if (!haveinfo)
2014 return -EINVAL;
3b85875a 2015
56d1893d
JB		 2016 err = call(&rdev->wiphy, dev, &params);
2017 if (!err && params.interval)
2018 wdev->beacon_interval = params.interval;
2019 return err;
ed1b6cc7
JB		 2020}
2021
2022static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2023{
4c476991
JB		 2024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2025 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2026 struct wireless_dev *wdev = dev->ieee80211_ptr;
2027 int err;
ed1b6cc7 2028
4c476991
JB		 2029 if (!rdev->ops->del_beacon)
2030 return -EOPNOTSUPP;
ed1b6cc7 2031
074ac8df 2032 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2033 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2034 return -EOPNOTSUPP;
3b85875a 2035
56d1893d
JB		 2036 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2037 if (!err)
2038 wdev->beacon_interval = 0;
2039 return err;
ed1b6cc7
JB		 2040}
2041
5727ef1b
JB		 2042static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2043 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2044 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2045 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2046 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2047 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2048};
2049
eccb8e8f
JB		 2050static int parse_station_flags(struct genl_info *info,
2051 struct station_parameters *params)
5727ef1b
JB		 2052{
2053 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2054 struct nlattr *nla;
5727ef1b
JB		 2055 int flag;
2056
eccb8e8f
JB		 2057 /*
2058 * Try parsing the new attribute first so userspace
2059 * can specify both for older kernels.
2060 */
2061 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2062 if (nla) {
2063 struct nl80211_sta_flag_update *sta_flags;
2064
2065 sta_flags = nla_data(nla);
2066 params->sta_flags_mask = sta_flags->mask;
2067 params->sta_flags_set = sta_flags->set;
2068 if ((params->sta_flags_mask |
2069 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2070 return -EINVAL;
2071 return 0;
2072 }
2073
2074 /* if present, parse the old attribute */
5727ef1b 2075
eccb8e8f 2076 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2077 if (!nla)
2078 return 0;
2079
2080 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2081 nla, sta_flags_policy))
2082 return -EINVAL;
2083
eccb8e8f
JB		 2084 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2085 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2086
2087 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2088 if (flags[flag])
eccb8e8f 2089 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2090
2091 return 0;
2092}
2093
c8dcfd8a
FF		 2094static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2095 int attr)
2096{
2097 struct nlattr *rate;
2098 u16 bitrate;
2099
2100 rate = nla_nest_start(msg, attr);
2101 if (!rate)
2102 goto nla_put_failure;
2103
2104 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2105 bitrate = cfg80211_calculate_bitrate(info);
2106 if (bitrate > 0)
2107 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2108
2109 if (info->flags & RATE_INFO_FLAGS_MCS)
2110 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2111 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2112 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2113 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2114 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2115
2116 nla_nest_end(msg, rate);
2117 return true;
2118
2119nla_put_failure:
2120 return false;
2121}
2122
fd5b74dc
JB		 2123static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2124 int flags, struct net_device *dev,
98b62183 2125 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2126{
2127 void *hdr;
f4263c98 2128 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2129
2130 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2131 if (!hdr)
2132 return -1;
2133
2134 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2135 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2136
f5ea9120
JB		 2137 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2138
2ec600d6
LCC		 2139 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2140 if (!sinfoattr)
fd5b74dc 2141 goto nla_put_failure;
ebe27c91
MSS		 2142 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2143 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2144 sinfo->connected_time);
2ec600d6
LCC		 2145 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2146 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2147 sinfo->inactive_time);
2148 if (sinfo->filled & STATION_INFO_RX_BYTES)
2149 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2150 sinfo->rx_bytes);
2151 if (sinfo->filled & STATION_INFO_TX_BYTES)
2152 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2153 sinfo->tx_bytes);
2154 if (sinfo->filled & STATION_INFO_LLID)
2155 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2156 sinfo->llid);
2157 if (sinfo->filled & STATION_INFO_PLID)
2158 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2159 sinfo->plid);
2160 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2161 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2162 sinfo->plink_state);
420e7fab
HR		 2163 if (sinfo->filled & STATION_INFO_SIGNAL)
2164 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2165 sinfo->signal);
541a45a1
BR		 2166 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2167 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2168 sinfo->signal_avg);
420e7fab 2169 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2170 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2171 NL80211_STA_INFO_TX_BITRATE))
2172 goto nla_put_failure;
2173 }
2174 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2175 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2176 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2177 goto nla_put_failure;
420e7fab 2178 }
98c8a60a
JM		 2179 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2180 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2181 sinfo->rx_packets);
2182 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2183 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2184 sinfo->tx_packets);
b206b4ef
BR		 2185 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2186 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2187 sinfo->tx_retries);
2188 if (sinfo->filled & STATION_INFO_TX_FAILED)
2189 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2190 sinfo->tx_failed);
f4263c98
PS		 2191 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2192 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2193 if (!bss_param)
2194 goto nla_put_failure;
2195
2196 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2197 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2198 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2199 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2200 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2201 NLA_PUT_FLAG(msg,
2202 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2203 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2204 sinfo->bss_param.dtim_period);
2205 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2206 sinfo->bss_param.beacon_interval);
2207
2208 nla_nest_end(msg, bss_param);
2209 }
2ec600d6 2210 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 2211
2212 return genlmsg_end(msg, hdr);
2213
2214 nla_put_failure:
bc3ed28c
TG		 2215 genlmsg_cancel(msg, hdr);
2216 return -EMSGSIZE;
fd5b74dc
JB		 2217}
2218
2ec600d6 2219static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2220 struct netlink_callback *cb)
2ec600d6 2221{
2ec600d6
LCC		 2222 struct station_info sinfo;
2223 struct cfg80211_registered_device *dev;
bba95fef 2224 struct net_device *netdev;
2ec600d6 2225 u8 mac_addr[ETH_ALEN];
bba95fef 2226 int sta_idx = cb->args[1];
2ec600d6 2227 int err;
2ec600d6 2228
67748893
JB		 2229 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2230 if (err)
2231 return err;
bba95fef
JB		 2232
2233 if (!dev->ops->dump_station) {
eec60b03 2234 err = -EOPNOTSUPP;
bba95fef
JB		 2235 goto out_err;
2236 }
2237
bba95fef
JB		 2238 while (1) {
2239 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2240 mac_addr, &sinfo);
2241 if (err == -ENOENT)
2242 break;
2243 if (err)
3b85875a 2244 goto out_err;
bba95fef
JB		 2245
2246 if (nl80211_send_station(skb,
2247 NETLINK_CB(cb->skb).pid,
2248 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2249 netdev, mac_addr,
2250 &sinfo) < 0)
2251 goto out;
2252
2253 sta_idx++;
2254 }
2255
2256
2257 out:
2258 cb->args[1] = sta_idx;
2259 err = skb->len;
bba95fef 2260 out_err:
67748893 2261 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2262
2263 return err;
2ec600d6 2264}
fd5b74dc 2265
5727ef1b
JB		 2266static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2267{
4c476991
JB		 2268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2269 struct net_device *dev = info->user_ptr[1];
2ec600d6 2270 struct station_info sinfo;
fd5b74dc
JB		 2271 struct sk_buff *msg;
2272 u8 *mac_addr = NULL;
4c476991 2273 int err;
fd5b74dc 2274
2ec600d6 2275 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2276
2277 if (!info->attrs[NL80211_ATTR_MAC])
2278 return -EINVAL;
2279
2280 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2281
4c476991
JB		 2282 if (!rdev->ops->get_station)
2283 return -EOPNOTSUPP;
3b85875a 2284
4c476991 2285 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2286 if (err)
4c476991 2287 return err;
2ec600d6 2288
fd2120ca 2289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2290 if (!msg)
4c476991 2291 return -ENOMEM;
fd5b74dc
JB		 2292
2293 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2294 dev, mac_addr, &sinfo) < 0) {
2295 nlmsg_free(msg);
2296 return -ENOBUFS;
2297 }
3b85875a 2298
4c476991 2299 return genlmsg_reply(msg, info);
5727ef1b
JB		 2300}
2301
2302/*
c258d2de 2303 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2304 */
463d0183 2305static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2306 struct cfg80211_registered_device *rdev,
2307 struct net_device **vlan)
2308{
463d0183 2309 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2310 *vlan = NULL;
2311
2312 if (vlanattr) {
463d0183
JB		 2313 *vlan = dev_get_by_index(genl_info_net(info),
2314 nla_get_u32(vlanattr));
5727ef1b
JB		 2315 if (!*vlan)
2316 return -ENODEV;
2317 if (!(*vlan)->ieee80211_ptr)
2318 return -EINVAL;
2319 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2320 return -EINVAL;
c258d2de
FF		 2321 if (!netif_running(*vlan))
2322 return -ENETDOWN;
5727ef1b
JB		 2323 }
2324 return 0;
2325}
2326
2327static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2328{
4c476991 2329 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2330 int err;
4c476991 2331 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2332 struct station_parameters params;
2333 u8 *mac_addr = NULL;
2334
2335 memset(&params, 0, sizeof(params));
2336
2337 params.listen_interval = -1;
57cf8043 2338 params.plink_state = -1;
5727ef1b
JB		 2339
2340 if (info->attrs[NL80211_ATTR_STA_AID])
2341 return -EINVAL;
2342
2343 if (!info->attrs[NL80211_ATTR_MAC])
2344 return -EINVAL;
2345
2346 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2347
2348 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2349 params.supported_rates =
2350 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2351 params.supported_rates_len =
2352 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2353 }
2354
2355 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2356 params.listen_interval =
2357 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2358
36aedc90
JM		 2359 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2360 params.ht_capa =
2361 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2362
eccb8e8f 2363 if (parse_station_flags(info, &params))
5727ef1b
JB		 2364 return -EINVAL;
2365
2ec600d6
LCC		 2366 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2367 params.plink_action =
2368 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2369
9c3990aa
JC		 2370 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2371 params.plink_state =
2372 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2373
463d0183 2374 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2375 if (err)
034d655e 2376 goto out;
a97f4424
JB		 2377
2378 /* validate settings */
2379 err = 0;
2380
2381 switch (dev->ieee80211_ptr->iftype) {
2382 case NL80211_IFTYPE_AP:
2383 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2384 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2385 /* disallow mesh-specific things */
2386 if (params.plink_action)
2387 err = -EINVAL;
2388 break;
074ac8df 2389 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2390 case NL80211_IFTYPE_STATION:
2391 /* disallow everything but AUTHORIZED flag */
2392 if (params.plink_action)
2393 err = -EINVAL;
2394 if (params.vlan)
2395 err = -EINVAL;
2396 if (params.supported_rates)
2397 err = -EINVAL;
2398 if (params.ht_capa)
2399 err = -EINVAL;
2400 if (params.listen_interval >= 0)
2401 err = -EINVAL;
2402 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2403 err = -EINVAL;
2404 break;
2405 case NL80211_IFTYPE_MESH_POINT:
2406 /* disallow things mesh doesn't support */
2407 if (params.vlan)
2408 err = -EINVAL;
2409 if (params.ht_capa)
2410 err = -EINVAL;
2411 if (params.listen_interval >= 0)
2412 err = -EINVAL;
b39c48fa
JC		 2413 if (params.sta_flags_mask &
2414 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2415 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2416 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2417 err = -EINVAL;
2418 break;
2419 default:
2420 err = -EINVAL;
034d655e
JB		 2421 }
2422
5727ef1b
JB		 2423 if (err)
2424 goto out;
2425
79c97e97 2426 if (!rdev->ops->change_station) {
5727ef1b
JB		 2427 err = -EOPNOTSUPP;
2428 goto out;
2429 }
2430
79c97e97 2431 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2432
2433 out:
2434 if (params.vlan)
2435 dev_put(params.vlan);
3b85875a 2436
5727ef1b
JB		 2437 return err;
2438}
2439
2440static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2441{
4c476991 2442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2443 int err;
4c476991 2444 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2445 struct station_parameters params;
2446 u8 *mac_addr = NULL;
2447
2448 memset(&params, 0, sizeof(params));
2449
2450 if (!info->attrs[NL80211_ATTR_MAC])
2451 return -EINVAL;
2452
5727ef1b
JB		 2453 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2454 return -EINVAL;
2455
2456 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2457 return -EINVAL;
2458
0e956c13
TLSC		 2459 if (!info->attrs[NL80211_ATTR_STA_AID])
2460 return -EINVAL;
2461
5727ef1b
JB		 2462 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2463 params.supported_rates =
2464 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2465 params.supported_rates_len =
2466 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2467 params.listen_interval =
2468 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2469
0e956c13
TLSC		 2470 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2471 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2472 return -EINVAL;
51b50fbe 2473
36aedc90
JM		 2474 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2475 params.ht_capa =
2476 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2477
96b78dff
JC		 2478 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2479 params.plink_action =
2480 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2481
eccb8e8f 2482 if (parse_station_flags(info, &params))
5727ef1b
JB		 2483 return -EINVAL;
2484
0e956c13 2485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2486 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2487 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2488 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2489 return -EINVAL;
0e956c13 2490
463d0183 2491 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2492 if (err)
e80cf853 2493 goto out;
a97f4424
JB		 2494
2495 /* validate settings */
2496 err = 0;
2497
79c97e97 2498 if (!rdev->ops->add_station) {
5727ef1b
JB		 2499 err = -EOPNOTSUPP;
2500 goto out;
2501 }
2502
79c97e97 2503 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2504
2505 out:
2506 if (params.vlan)
2507 dev_put(params.vlan);
5727ef1b
JB		 2508 return err;
2509}
2510
2511static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2512{
4c476991
JB		 2513 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2514 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2515 u8 *mac_addr = NULL;
2516
2517 if (info->attrs[NL80211_ATTR_MAC])
2518 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2519
e80cf853 2520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2521 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2522 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2524 return -EINVAL;
5727ef1b 2525
4c476991
JB		 2526 if (!rdev->ops->del_station)
2527 return -EOPNOTSUPP;
3b85875a 2528
4c476991 2529 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2530}
2531
2ec600d6
LCC		 2532static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2533 int flags, struct net_device *dev,
2534 u8 *dst, u8 *next_hop,
2535 struct mpath_info *pinfo)
2536{
2537 void *hdr;
2538 struct nlattr *pinfoattr;
2539
2540 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2541 if (!hdr)
2542 return -1;
2543
2544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2545 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2546 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2547
f5ea9120
JB		 2548 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2549
2ec600d6
LCC		 2550 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2551 if (!pinfoattr)
2552 goto nla_put_failure;
2553 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2554 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2555 pinfo->frame_qlen);
d19b3bf6
RP		 2556 if (pinfo->filled & MPATH_INFO_SN)
2557 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2558 pinfo->sn);
2ec600d6
LCC		 2559 if (pinfo->filled & MPATH_INFO_METRIC)
2560 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2561 pinfo->metric);
2562 if (pinfo->filled & MPATH_INFO_EXPTIME)
2563 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2564 pinfo->exptime);
2565 if (pinfo->filled & MPATH_INFO_FLAGS)
2566 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2567 pinfo->flags);
2568 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2569 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2570 pinfo->discovery_timeout);
2571 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2572 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2573 pinfo->discovery_retries);
2574
2575 nla_nest_end(msg, pinfoattr);
2576
2577 return genlmsg_end(msg, hdr);
2578
2579 nla_put_failure:
bc3ed28c
TG		 2580 genlmsg_cancel(msg, hdr);
2581 return -EMSGSIZE;
2ec600d6
LCC		 2582}
2583
2584static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2585 struct netlink_callback *cb)
2ec600d6 2586{
2ec600d6
LCC		 2587 struct mpath_info pinfo;
2588 struct cfg80211_registered_device *dev;
bba95fef 2589 struct net_device *netdev;
2ec600d6
LCC		 2590 u8 dst[ETH_ALEN];
2591 u8 next_hop[ETH_ALEN];
bba95fef 2592 int path_idx = cb->args[1];
2ec600d6 2593 int err;
2ec600d6 2594
67748893
JB		 2595 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2596 if (err)
2597 return err;
bba95fef
JB		 2598
2599 if (!dev->ops->dump_mpath) {
eec60b03 2600 err = -EOPNOTSUPP;
bba95fef
JB		 2601 goto out_err;
2602 }
2603
eec60b03
JM		 2604 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2605 err = -EOPNOTSUPP;
0448b5fc 2606 goto out_err;
eec60b03
JM		 2607 }
2608
bba95fef
JB		 2609 while (1) {
2610 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2611 dst, next_hop, &pinfo);
2612 if (err == -ENOENT)
2ec600d6 2613 break;
bba95fef 2614 if (err)
3b85875a 2615 goto out_err;
2ec600d6 2616
bba95fef
JB		 2617 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2618 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2619 netdev, dst, next_hop,
2620 &pinfo) < 0)
2621 goto out;
2ec600d6 2622
bba95fef 2623 path_idx++;
2ec600d6 2624 }
2ec600d6 2625
2ec600d6 2626
bba95fef
JB		 2627 out:
2628 cb->args[1] = path_idx;
2629 err = skb->len;
bba95fef 2630 out_err:
67748893 2631 nl80211_finish_netdev_dump(dev);
bba95fef 2632 return err;
2ec600d6
LCC		 2633}
2634
2635static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2636{
4c476991 2637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2638 int err;
4c476991 2639 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2640 struct mpath_info pinfo;
2641 struct sk_buff *msg;
2642 u8 *dst = NULL;
2643 u8 next_hop[ETH_ALEN];
2644
2645 memset(&pinfo, 0, sizeof(pinfo));
2646
2647 if (!info->attrs[NL80211_ATTR_MAC])
2648 return -EINVAL;
2649
2650 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2651
4c476991
JB		 2652 if (!rdev->ops->get_mpath)
2653 return -EOPNOTSUPP;
2ec600d6 2654
4c476991
JB		 2655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2656 return -EOPNOTSUPP;
eec60b03 2657
79c97e97 2658 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2659 if (err)
4c476991 2660 return err;
2ec600d6 2661
fd2120ca 2662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2663 if (!msg)
4c476991 2664 return -ENOMEM;
2ec600d6
LCC		 2665
2666 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2667 dev, dst, next_hop, &pinfo) < 0) {
2668 nlmsg_free(msg);
2669 return -ENOBUFS;
2670 }
3b85875a 2671
4c476991 2672 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2673}
2674
2675static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2676{
4c476991
JB		 2677 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2678 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2679 u8 *dst = NULL;
2680 u8 *next_hop = NULL;
2681
2682 if (!info->attrs[NL80211_ATTR_MAC])
2683 return -EINVAL;
2684
2685 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2686 return -EINVAL;
2687
2688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2689 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2690
4c476991
JB		 2691 if (!rdev->ops->change_mpath)
2692 return -EOPNOTSUPP;
35a8efe1 2693
4c476991
JB		 2694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2695 return -EOPNOTSUPP;
2ec600d6 2696
4c476991 2697 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2698}
4c476991 2699
2ec600d6
LCC		 2700static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2701{
4c476991
JB		 2702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2703 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2704 u8 *dst = NULL;
2705 u8 *next_hop = NULL;
2706
2707 if (!info->attrs[NL80211_ATTR_MAC])
2708 return -EINVAL;
2709
2710 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2711 return -EINVAL;
2712
2713 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2714 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2715
4c476991
JB		 2716 if (!rdev->ops->add_mpath)
2717 return -EOPNOTSUPP;
35a8efe1 2718
4c476991
JB		 2719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2720 return -EOPNOTSUPP;
2ec600d6 2721
4c476991 2722 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2723}
2724
2725static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2726{
4c476991
JB		 2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2728 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2729 u8 *dst = NULL;
2730
2731 if (info->attrs[NL80211_ATTR_MAC])
2732 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2733
4c476991
JB		 2734 if (!rdev->ops->del_mpath)
2735 return -EOPNOTSUPP;
3b85875a 2736
4c476991 2737 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2738}
2739
9f1ba906
JM		 2740static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2741{
4c476991
JB		 2742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2743 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2744 struct bss_parameters params;
2745
2746 memset(&params, 0, sizeof(params));
2747 /* default to not changing parameters */
2748 params.use_cts_prot = -1;
2749 params.use_short_preamble = -1;
2750 params.use_short_slot_time = -1;
fd8aaaf3 2751 params.ap_isolate = -1;
50b12f59 2752 params.ht_opmode = -1;
9f1ba906
JM		 2753
2754 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2755 params.use_cts_prot =
2756 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2757 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2758 params.use_short_preamble =
2759 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2760 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2761 params.use_short_slot_time =
2762 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2763 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2764 params.basic_rates =
2765 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2766 params.basic_rates_len =
2767 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2768 }
fd8aaaf3
FF		 2769 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2770 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2771 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2772 params.ht_opmode =
2773 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2774
4c476991
JB		 2775 if (!rdev->ops->change_bss)
2776 return -EOPNOTSUPP;
9f1ba906 2777
074ac8df 2778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2780 return -EOPNOTSUPP;
3b85875a 2781
4c476991 2782 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2783}
2784
b54452b0 2785static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2786 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2787 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2788 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2789 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2790 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2791 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2792};
2793
2794static int parse_reg_rule(struct nlattr *tb[],
2795 struct ieee80211_reg_rule *reg_rule)
2796{
2797 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2798 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2799
2800 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2801 return -EINVAL;
2802 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2803 return -EINVAL;
2804 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2805 return -EINVAL;
2806 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2807 return -EINVAL;
2808 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2809 return -EINVAL;
2810
2811 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2812
2813 freq_range->start_freq_khz =
2814 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2815 freq_range->end_freq_khz =
2816 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2817 freq_range->max_bandwidth_khz =
2818 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2819
2820 power_rule->max_eirp =
2821 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2822
2823 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2824 power_rule->max_antenna_gain =
2825 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2826
2827 return 0;
2828}
2829
2830static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2831{
2832 int r;
2833 char *data = NULL;
2834
80778f18
LR		 2835 /*
2836 * You should only get this when cfg80211 hasn't yet initialized
2837 * completely when built-in to the kernel right between the time
2838 * window between nl80211_init() and regulatory_init(), if that is
2839 * even possible.
2840 */
2841 mutex_lock(&cfg80211_mutex);
2842 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2843 mutex_unlock(&cfg80211_mutex);
2844 return -EINPROGRESS;
80778f18 2845 }
fe33eb39 2846 mutex_unlock(&cfg80211_mutex);
80778f18 2847
fe33eb39
LR		 2848 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2849 return -EINVAL;
b2e1b302
LR		 2850
2851 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2852
fe33eb39
LR		 2853 r = regulatory_hint_user(data);
2854
b2e1b302
LR		 2855 return r;
2856}
2857
24bdd9f4 2858static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 2859 struct genl_info *info)
93da9cc1 2860{
4c476991 2861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2862 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2863 struct wireless_dev *wdev = dev->ieee80211_ptr;
2864 struct mesh_config cur_params;
2865 int err = 0;
93da9cc1 2866 void *hdr;
2867 struct nlattr *pinfoattr;
2868 struct sk_buff *msg;
2869
29cbe68c
JB		 2870 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2871 return -EOPNOTSUPP;
2872
24bdd9f4 2873 if (!rdev->ops->get_mesh_config)
4c476991 2874 return -EOPNOTSUPP;
f3f92586 2875
29cbe68c
JB		 2876 wdev_lock(wdev);
2877 /* If not connected, get default parameters */
2878 if (!wdev->mesh_id_len)
2879 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2880 else
24bdd9f4 2881 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2882 &cur_params);
2883 wdev_unlock(wdev);
2884
93da9cc1 2885 if (err)
4c476991 2886 return err;
93da9cc1 2887
2888 /* Draw up a netlink message to send back */
fd2120ca 2889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2890 if (!msg)
2891 return -ENOMEM;
93da9cc1 2892 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 2893 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 2894 if (!hdr)
efe1cf0c 2895 goto out;
24bdd9f4 2896 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 2897 if (!pinfoattr)
2898 goto nla_put_failure;
2899 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2900 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2901 cur_params.dot11MeshRetryTimeout);
2902 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2903 cur_params.dot11MeshConfirmTimeout);
2904 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2905 cur_params.dot11MeshHoldingTimeout);
2906 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2907 cur_params.dot11MeshMaxPeerLinks);
2908 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2909 cur_params.dot11MeshMaxRetries);
2910 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2911 cur_params.dot11MeshTTL);
45904f21
JC		 2912 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2913 cur_params.element_ttl);
93da9cc1 2914 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2915 cur_params.auto_open_plinks);
2916 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2917 cur_params.dot11MeshHWMPmaxPREQretries);
2918 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2919 cur_params.path_refresh_time);
2920 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2921 cur_params.min_discovery_timeout);
2922 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2923 cur_params.dot11MeshHWMPactivePathTimeout);
2924 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2925 cur_params.dot11MeshHWMPpreqMinInterval);
2926 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2927 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2928 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2929 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2930 nla_nest_end(msg, pinfoattr);
2931 genlmsg_end(msg, hdr);
4c476991 2932 return genlmsg_reply(msg, info);
93da9cc1 2933
3b85875a 2934 nla_put_failure:
93da9cc1 2935 genlmsg_cancel(msg, hdr);
efe1cf0c 2936 out:
d080e275 2937 nlmsg_free(msg);
4c476991 2938 return -ENOBUFS;
93da9cc1 2939}
2940
b54452b0 2941static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2942 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2943 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2944 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2945 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2946 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2947 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2948 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2949 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2950
2951 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2952 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2953 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2954 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2955 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2956 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2957};
2958
c80d545d
JC		 2959static const struct nla_policy
2960 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2961 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2962 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 2963 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 2964 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 2965 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 2966 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 2967};
2968
24bdd9f4 2969static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 2970 struct mesh_config *cfg,
2971 u32 *mask_out)
93da9cc1 2972{
93da9cc1 2973 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 2974 u32 mask = 0;
93da9cc1 2975
bd90fdcc
JB		 2976#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2977do {\
2978 if (table[attr_num]) {\
2979 cfg->param = nla_fn(table[attr_num]); \
2980 mask |= (1 << (attr_num - 1)); \
2981 } \
2982} while (0);\
2983
2984
24bdd9f4 2985 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 2986 return -EINVAL;
2987 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 2988 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 2989 nl80211_meshconf_params_policy))
93da9cc1 2990 return -EINVAL;
2991
93da9cc1 2992 /* This makes sure that there aren't more than 32 mesh config
2993 * parameters (otherwise our bitfield scheme would not work.) */
2994 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2995
2996 /* Fill in the params struct */
93da9cc1 2997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2998 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3000 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3002 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3004 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3006 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3008 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3010 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3012 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3014 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3015 nla_get_u8);
3016 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3017 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3019 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3020 nla_get_u16);
3021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3022 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3023 nla_get_u32);
3024 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3025 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3026 nla_get_u16);
3027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3028 dot11MeshHWMPnetDiameterTraversalTime,
3029 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3030 nla_get_u16);
63c5723b
RP		 3031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3032 dot11MeshHWMPRootMode, mask,
3033 NL80211_MESHCONF_HWMP_ROOTMODE,
3034 nla_get_u8);
bd90fdcc
JB		 3035 if (mask_out)
3036 *mask_out = mask;
c80d545d 3037
bd90fdcc
JB		 3038 return 0;
3039
3040#undef FILL_IN_MESH_PARAM_IF_SET
3041}
3042
c80d545d
JC		 3043static int nl80211_parse_mesh_setup(struct genl_info *info,
3044 struct mesh_setup *setup)
3045{
3046 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3047
3048 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3049 return -EINVAL;
3050 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3051 info->attrs[NL80211_ATTR_MESH_SETUP],
3052 nl80211_mesh_setup_params_policy))
3053 return -EINVAL;
3054
3055 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3056 setup->path_sel_proto =
3057 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3058 IEEE80211_PATH_PROTOCOL_VENDOR :
3059 IEEE80211_PATH_PROTOCOL_HWMP;
3060
3061 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3062 setup->path_metric =
3063 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3064 IEEE80211_PATH_METRIC_VENDOR :
3065 IEEE80211_PATH_METRIC_AIRTIME;
3066
581a8b0f
JC		 3067
3068 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3069 struct nlattr *ieattr =
581a8b0f 3070 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3071 if (!is_valid_ie_attr(ieattr))
3072 return -EINVAL;
581a8b0f
JC		 3073 setup->ie = nla_data(ieattr);
3074 setup->ie_len = nla_len(ieattr);
c80d545d 3075 }
b130e5ce
JC		 3076 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3077 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3078
3079 return 0;
3080}
3081
24bdd9f4 3082static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3083 struct genl_info *info)
bd90fdcc
JB		 3084{
3085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3086 struct net_device *dev = info->user_ptr[1];
29cbe68c 3087 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3088 struct mesh_config cfg;
3089 u32 mask;
3090 int err;
3091
29cbe68c
JB		 3092 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3093 return -EOPNOTSUPP;
3094
24bdd9f4 3095 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3096 return -EOPNOTSUPP;
3097
24bdd9f4 3098 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3099 if (err)
3100 return err;
3101
29cbe68c
JB		 3102 wdev_lock(wdev);
3103 if (!wdev->mesh_id_len)
3104 err = -ENOLINK;
3105
3106 if (!err)
24bdd9f4 3107 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3108 mask, &cfg);
3109
3110 wdev_unlock(wdev);
3111
3112 return err;
93da9cc1 3113}
3114
f130347c
LR		 3115static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3116{
3117 struct sk_buff *msg;
3118 void *hdr = NULL;
3119 struct nlattr *nl_reg_rules;
3120 unsigned int i;
3121 int err = -EINVAL;
3122
a1794390 3123 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3124
3125 if (!cfg80211_regdomain)
3126 goto out;
3127
fd2120ca 3128 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3129 if (!msg) {
3130 err = -ENOBUFS;
3131 goto out;
3132 }
3133
3134 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3135 NL80211_CMD_GET_REG);
3136 if (!hdr)
efe1cf0c 3137 goto put_failure;
f130347c
LR		 3138
3139 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3140 cfg80211_regdomain->alpha2);
3141
3142 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3143 if (!nl_reg_rules)
3144 goto nla_put_failure;
3145
3146 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3147 struct nlattr *nl_reg_rule;
3148 const struct ieee80211_reg_rule *reg_rule;
3149 const struct ieee80211_freq_range *freq_range;
3150 const struct ieee80211_power_rule *power_rule;
3151
3152 reg_rule = &cfg80211_regdomain->reg_rules[i];
3153 freq_range = &reg_rule->freq_range;
3154 power_rule = &reg_rule->power_rule;
3155
3156 nl_reg_rule = nla_nest_start(msg, i);
3157 if (!nl_reg_rule)
3158 goto nla_put_failure;
3159
3160 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3161 reg_rule->flags);
3162 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3163 freq_range->start_freq_khz);
3164 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3165 freq_range->end_freq_khz);
3166 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3167 freq_range->max_bandwidth_khz);
3168 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3169 power_rule->max_antenna_gain);
3170 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3171 power_rule->max_eirp);
3172
3173 nla_nest_end(msg, nl_reg_rule);
3174 }
3175
3176 nla_nest_end(msg, nl_reg_rules);
3177
3178 genlmsg_end(msg, hdr);
134e6375 3179 err = genlmsg_reply(msg, info);
f130347c
LR		 3180 goto out;
3181
3182nla_put_failure:
3183 genlmsg_cancel(msg, hdr);
efe1cf0c 3184put_failure:
d080e275 3185 nlmsg_free(msg);
f130347c
LR		 3186 err = -EMSGSIZE;
3187out:
a1794390 3188 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3189 return err;
3190}
3191
b2e1b302
LR		 3192static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3193{
3194 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3195 struct nlattr *nl_reg_rule;
3196 char *alpha2 = NULL;
3197 int rem_reg_rules = 0, r = 0;
3198 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3199 struct ieee80211_regdomain *rd = NULL;
3200
3201 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3202 return -EINVAL;
3203
3204 if (!info->attrs[NL80211_ATTR_REG_RULES])
3205 return -EINVAL;
3206
3207 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3208
3209 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3210 rem_reg_rules) {
3211 num_rules++;
3212 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3213 return -EINVAL;
b2e1b302
LR		 3214 }
3215
61405e97
LR		 3216 mutex_lock(&cfg80211_mutex);
3217
d0e18f83
LR		 3218 if (!reg_is_valid_request(alpha2)) {
3219 r = -EINVAL;
3220 goto bad_reg;
3221 }
b2e1b302
LR		 3222
3223 size_of_regd = sizeof(struct ieee80211_regdomain) +
3224 (num_rules * sizeof(struct ieee80211_reg_rule));
3225
3226 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3227 if (!rd) {
3228 r = -ENOMEM;
3229 goto bad_reg;
3230 }
b2e1b302
LR		 3231
3232 rd->n_reg_rules = num_rules;
3233 rd->alpha2[0] = alpha2[0];
3234 rd->alpha2[1] = alpha2[1];
3235
3236 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3237 rem_reg_rules) {
3238 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3239 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3240 reg_rule_policy);
3241 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3242 if (r)
3243 goto bad_reg;
3244
3245 rule_idx++;
3246
d0e18f83
LR		 3247 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3248 r = -EINVAL;
b2e1b302 3249 goto bad_reg;
d0e18f83 3250 }
b2e1b302
LR		 3251 }
3252
3253 BUG_ON(rule_idx != num_rules);
3254
b2e1b302 3255 r = set_regdom(rd);
61405e97 3256
a1794390 3257 mutex_unlock(&cfg80211_mutex);
d0e18f83 3258
b2e1b302
LR		 3259 return r;
3260
d2372b31 3261 bad_reg:
61405e97 3262 mutex_unlock(&cfg80211_mutex);
b2e1b302 3263 kfree(rd);
d0e18f83 3264 return r;
b2e1b302
LR		 3265}
3266
83f5e2cf
JB		 3267static int validate_scan_freqs(struct nlattr *freqs)
3268{
3269 struct nlattr *attr1, *attr2;
3270 int n_channels = 0, tmp1, tmp2;
3271
3272 nla_for_each_nested(attr1, freqs, tmp1) {
3273 n_channels++;
3274 /*
3275 * Some hardware has a limited channel list for
3276 * scanning, and it is pretty much nonsensical
3277 * to scan for a channel twice, so disallow that
3278 * and don't require drivers to check that the
3279 * channel list they get isn't longer than what
3280 * they can scan, as long as they can scan all
3281 * the channels they registered at once.
3282 */
3283 nla_for_each_nested(attr2, freqs, tmp2)
3284 if (attr1 != attr2 &&
3285 nla_get_u32(attr1) == nla_get_u32(attr2))
3286 return 0;
3287 }
3288
3289 return n_channels;
3290}
3291
2a519311
JB		 3292static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3293{
4c476991
JB		 3294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3295 struct net_device *dev = info->user_ptr[1];
2a519311 3296 struct cfg80211_scan_request *request;
2a519311
JB		 3297 struct nlattr *attr;
3298 struct wiphy *wiphy;
83f5e2cf 3299 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 3300 enum ieee80211_band band;
70692ad2 3301 size_t ie_len;
2a519311 3302
f4a11bb0
JB		 3303 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3304 return -EINVAL;
3305
79c97e97 3306 wiphy = &rdev->wiphy;
2a519311 3307
4c476991
JB		 3308 if (!rdev->ops->scan)
3309 return -EOPNOTSUPP;
2a519311 3310
4c476991
JB		 3311 if (rdev->scan_req)
3312 return -EBUSY;
2a519311
JB		 3313
3314 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3315 n_channels = validate_scan_freqs(
3316 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3317 if (!n_channels)
3318 return -EINVAL;
2a519311 3319 } else {
83f5e2cf
JB		 3320 n_channels = 0;
3321
2a519311
JB		 3322 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3323 if (wiphy->bands[band])
3324 n_channels += wiphy->bands[band]->n_channels;
3325 }
3326
3327 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3328 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3329 n_ssids++;
3330
4c476991
JB		 3331 if (n_ssids > wiphy->max_scan_ssids)
3332 return -EINVAL;
2a519311 3333
70692ad2
JM		 3334 if (info->attrs[NL80211_ATTR_IE])
3335 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3336 else
3337 ie_len = 0;
3338
4c476991
JB		 3339 if (ie_len > wiphy->max_scan_ie_len)
3340 return -EINVAL;
18a83659 3341
2a519311 3342 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3343 + sizeof(*request->ssids) * n_ssids
3344 + sizeof(*request->channels) * n_channels
70692ad2 3345 + ie_len, GFP_KERNEL);
4c476991
JB		 3346 if (!request)
3347 return -ENOMEM;
2a519311 3348
2a519311 3349 if (n_ssids)
5ba63533 3350 request->ssids = (void *)&request->channels[n_channels];
2a519311 3351 request->n_ssids = n_ssids;
70692ad2
JM		 3352 if (ie_len) {
3353 if (request->ssids)
3354 request->ie = (void *)(request->ssids + n_ssids);
3355 else
3356 request->ie = (void *)(request->channels + n_channels);
3357 }
2a519311 3358
584991dc 3359 i = 0;
2a519311
JB		 3360 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3361 /* user specified, bail out if channel not found */
2a519311 3362 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3363 struct ieee80211_channel *chan;
3364
3365 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3366
3367 if (!chan) {
2a519311
JB		 3368 err = -EINVAL;
3369 goto out_free;
3370 }
584991dc
JB		 3371
3372 /* ignore disabled channels */
3373 if (chan->flags & IEEE80211_CHAN_DISABLED)
3374 continue;
3375
3376 request->channels[i] = chan;
2a519311
JB		 3377 i++;
3378 }
3379 } else {
3380 /* all channels */
2a519311
JB		 3381 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3382 int j;
3383 if (!wiphy->bands[band])
3384 continue;
3385 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3386 struct ieee80211_channel *chan;
3387
3388 chan = &wiphy->bands[band]->channels[j];
3389
3390 if (chan->flags & IEEE80211_CHAN_DISABLED)
3391 continue;
3392
3393 request->channels[i] = chan;
2a519311
JB		 3394 i++;
3395 }
3396 }
3397 }
3398
584991dc
JB		 3399 if (!i) {
3400 err = -EINVAL;
3401 goto out_free;
3402 }
3403
3404 request->n_channels = i;
3405
2a519311
JB		 3406 i = 0;
3407 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3408 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
208c72f4 3409 request->ssids[i].ssid_len = nla_len(attr);
2a519311
JB		 3410 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3411 err = -EINVAL;
3412 goto out_free;
3413 }
3414 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3415 i++;
3416 }
3417 }
3418
70692ad2
JM		 3419 if (info->attrs[NL80211_ATTR_IE]) {
3420 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3421 memcpy((void *)request->ie,
3422 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3423 request->ie_len);
3424 }
3425
463d0183 3426 request->dev = dev;
79c97e97 3427 request->wiphy = &rdev->wiphy;
2a519311 3428
79c97e97
JB		 3429 rdev->scan_req = request;
3430 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3431
463d0183 3432 if (!err) {
79c97e97 3433 nl80211_send_scan_start(rdev, dev);
463d0183 3434 dev_hold(dev);
4c476991 3435 } else {
2a519311 3436 out_free:
79c97e97 3437 rdev->scan_req = NULL;
2a519311
JB		 3438 kfree(request);
3439 }
3b85875a 3440
2a519311
JB		 3441 return err;
3442}
3443
807f8a8c
LC		 3444static int nl80211_start_sched_scan(struct sk_buff *skb,
3445 struct genl_info *info)
3446{
3447 struct cfg80211_sched_scan_request *request;
3448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3450 struct nlattr *attr;
3451 struct wiphy *wiphy;
3452 int err, tmp, n_ssids = 0, n_channels, i;
bbe6ad6d 3453 u32 interval;
807f8a8c
LC		 3454 enum ieee80211_band band;
3455 size_t ie_len;
3456
3457 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3458 !rdev->ops->sched_scan_start)
3459 return -EOPNOTSUPP;
3460
3461 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3462 return -EINVAL;
3463
3464 if (rdev->sched_scan_req)
3465 return -EINPROGRESS;
3466
bbe6ad6d
LC		 3467 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3468 return -EINVAL;
3469
3470 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3471 if (interval == 0)
3472 return -EINVAL;
3473
807f8a8c
LC		 3474 wiphy = &rdev->wiphy;
3475
3476 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3477 n_channels = validate_scan_freqs(
3478 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3479 if (!n_channels)
3480 return -EINVAL;
3481 } else {
3482 n_channels = 0;
3483
3484 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3485 if (wiphy->bands[band])
3486 n_channels += wiphy->bands[band]->n_channels;
3487 }
3488
3489 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3490 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3491 tmp)
3492 n_ssids++;
3493
3494 if (n_ssids > wiphy->max_scan_ssids)
3495 return -EINVAL;
3496
3497 if (info->attrs[NL80211_ATTR_IE])
3498 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3499 else
3500 ie_len = 0;
3501
3502 if (ie_len > wiphy->max_scan_ie_len)
3503 return -EINVAL;
3504
3505 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3506 + sizeof(*request->ssids) * n_ssids
3507 + sizeof(*request->channels) * n_channels
807f8a8c
LC		 3508 + ie_len, GFP_KERNEL);
3509 if (!request)
3510 return -ENOMEM;
3511
3512 if (n_ssids)
3513 request->ssids = (void *)&request->channels[n_channels];
3514 request->n_ssids = n_ssids;
3515 if (ie_len) {
3516 if (request->ssids)
3517 request->ie = (void *)(request->ssids + n_ssids);
3518 else
3519 request->ie = (void *)(request->channels + n_channels);
3520 }
3521
3522 i = 0;
3523 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3524 /* user specified, bail out if channel not found */
3525 nla_for_each_nested(attr,
3526 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3527 tmp) {
3528 struct ieee80211_channel *chan;
3529
3530 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3531
3532 if (!chan) {
3533 err = -EINVAL;
3534 goto out_free;
3535 }
3536
3537 /* ignore disabled channels */
3538 if (chan->flags & IEEE80211_CHAN_DISABLED)
3539 continue;
3540
3541 request->channels[i] = chan;
3542 i++;
3543 }
3544 } else {
3545 /* all channels */
3546 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3547 int j;
3548 if (!wiphy->bands[band])
3549 continue;
3550 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3551 struct ieee80211_channel *chan;
3552
3553 chan = &wiphy->bands[band]->channels[j];
3554
3555 if (chan->flags & IEEE80211_CHAN_DISABLED)
3556 continue;
3557
3558 request->channels[i] = chan;
3559 i++;
3560 }
3561 }
3562 }
3563
3564 if (!i) {
3565 err = -EINVAL;
3566 goto out_free;
3567 }
3568
3569 request->n_channels = i;
3570
3571 i = 0;
3572 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3573 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3574 tmp) {
208c72f4 3575 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3576 if (request->ssids[i].ssid_len >
3577 IEEE80211_MAX_SSID_LEN) {
3578 err = -EINVAL;
3579 goto out_free;
3580 }
3581 memcpy(request->ssids[i].ssid, nla_data(attr),
3582 nla_len(attr));
807f8a8c
LC		 3583 i++;
3584 }
3585 }
3586
3587 if (info->attrs[NL80211_ATTR_IE]) {
3588 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3589 memcpy((void *)request->ie,
3590 nla_data(info->attrs[NL80211_ATTR_IE]),
3591 request->ie_len);
3592 }
3593
3594 request->dev = dev;
3595 request->wiphy = &rdev->wiphy;
bbe6ad6d 3596 request->interval = interval;
807f8a8c
LC		 3597
3598 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3599 if (!err) {
3600 rdev->sched_scan_req = request;
3601 nl80211_send_sched_scan(rdev, dev,
3602 NL80211_CMD_START_SCHED_SCAN);
3603 goto out;
3604 }
3605
3606out_free:
3607 kfree(request);
3608out:
3609 return err;
3610}
3611
3612static int nl80211_stop_sched_scan(struct sk_buff *skb,
3613 struct genl_info *info)
3614{
3615 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3616
3617 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3618 !rdev->ops->sched_scan_stop)
3619 return -EOPNOTSUPP;
3620
3621 return __cfg80211_stop_sched_scan(rdev, false);
3622}
3623
2a519311
JB		 3624static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3625 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3626 struct wireless_dev *wdev,
3627 struct cfg80211_internal_bss *intbss)
2a519311 3628{
48ab905d 3629 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3630 void *hdr;
3631 struct nlattr *bss;
48ab905d
JB		 3632 int i;
3633
3634 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3635
3636 hdr = nl80211hdr_put(msg, pid, seq, flags,
3637 NL80211_CMD_NEW_SCAN_RESULTS);
3638 if (!hdr)
3639 return -1;
3640
f5ea9120 3641 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3642 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3643
3644 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3645 if (!bss)
3646 goto nla_put_failure;
3647 if (!is_zero_ether_addr(res->bssid))
3648 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3649 if (res->information_elements && res->len_information_elements)
3650 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3651 res->len_information_elements,
3652 res->information_elements);
34a6eddb
JM		 3653 if (res->beacon_ies && res->len_beacon_ies &&
3654 res->beacon_ies != res->information_elements)
3655 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3656 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3657 if (res->tsf)
3658 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3659 if (res->beacon_interval)
3660 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3661 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3662 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3663 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3664 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3665
77965c97 3666 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3667 case CFG80211_SIGNAL_TYPE_MBM:
3668 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3669 break;
3670 case CFG80211_SIGNAL_TYPE_UNSPEC:
3671 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3672 break;
3673 default:
3674 break;
3675 }
3676
48ab905d 3677 switch (wdev->iftype) {
074ac8df 3678 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3679 case NL80211_IFTYPE_STATION:
3680 if (intbss == wdev->current_bss)
3681 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3682 NL80211_BSS_STATUS_ASSOCIATED);
3683 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3684 if (intbss != wdev->auth_bsses[i])
3685 continue;
3686 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3687 NL80211_BSS_STATUS_AUTHENTICATED);
3688 break;
3689 }
3690 break;
3691 case NL80211_IFTYPE_ADHOC:
3692 if (intbss == wdev->current_bss)
3693 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3694 NL80211_BSS_STATUS_IBSS_JOINED);
3695 break;
3696 default:
3697 break;
3698 }
3699
2a519311
JB		 3700 nla_nest_end(msg, bss);
3701
3702 return genlmsg_end(msg, hdr);
3703
3704 nla_put_failure:
3705 genlmsg_cancel(msg, hdr);
3706 return -EMSGSIZE;
3707}
3708
3709static int nl80211_dump_scan(struct sk_buff *skb,
3710 struct netlink_callback *cb)
3711{
48ab905d
JB		 3712 struct cfg80211_registered_device *rdev;
3713 struct net_device *dev;
2a519311 3714 struct cfg80211_internal_bss *scan;
48ab905d 3715 struct wireless_dev *wdev;
2a519311
JB		 3716 int start = cb->args[1], idx = 0;
3717 int err;
3718
67748893
JB		 3719 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3720 if (err)
3721 return err;
2a519311 3722
48ab905d 3723 wdev = dev->ieee80211_ptr;
2a519311 3724
48ab905d
JB		 3725 wdev_lock(wdev);
3726 spin_lock_bh(&rdev->bss_lock);
3727 cfg80211_bss_expire(rdev);
3728
3729 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3730 if (++idx <= start)
3731 continue;
3732 if (nl80211_send_bss(skb,
3733 NETLINK_CB(cb->skb).pid,
3734 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3735 rdev, wdev, scan) < 0) {
2a519311 3736 idx--;
67748893 3737 break;
2a519311
JB		 3738 }
3739 }
3740
48ab905d
JB		 3741 spin_unlock_bh(&rdev->bss_lock);
3742 wdev_unlock(wdev);
2a519311
JB		 3743
3744 cb->args[1] = idx;
67748893 3745 nl80211_finish_netdev_dump(rdev);
2a519311 3746
67748893 3747 return skb->len;
2a519311
JB		 3748}
3749
61fa713c
HS		 3750static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3751 int flags, struct net_device *dev,
3752 struct survey_info *survey)
3753{
3754 void *hdr;
3755 struct nlattr *infoattr;
3756
3757 /* Survey without a channel doesn't make sense */
3758 if (!survey->channel)
3759 return -EINVAL;
3760
3761 hdr = nl80211hdr_put(msg, pid, seq, flags,
3762 NL80211_CMD_NEW_SURVEY_RESULTS);
3763 if (!hdr)
3764 return -ENOMEM;
3765
3766 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3767
3768 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3769 if (!infoattr)
3770 goto nla_put_failure;
3771
3772 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3773 survey->channel->center_freq);
3774 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3775 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3776 survey->noise);
17e5a808
FF		 3777 if (survey->filled & SURVEY_INFO_IN_USE)
3778 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3779 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3780 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3781 survey->channel_time);
3782 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3783 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3784 survey->channel_time_busy);
3785 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3786 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3787 survey->channel_time_ext_busy);
3788 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3789 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3790 survey->channel_time_rx);
3791 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3792 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3793 survey->channel_time_tx);
61fa713c
HS		 3794
3795 nla_nest_end(msg, infoattr);
3796
3797 return genlmsg_end(msg, hdr);
3798
3799 nla_put_failure:
3800 genlmsg_cancel(msg, hdr);
3801 return -EMSGSIZE;
3802}
3803
3804static int nl80211_dump_survey(struct sk_buff *skb,
3805 struct netlink_callback *cb)
3806{
3807 struct survey_info survey;
3808 struct cfg80211_registered_device *dev;
3809 struct net_device *netdev;
61fa713c
HS		 3810 int survey_idx = cb->args[1];
3811 int res;
3812
67748893
JB		 3813 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3814 if (res)
3815 return res;
61fa713c
HS		 3816
3817 if (!dev->ops->dump_survey) {
3818 res = -EOPNOTSUPP;
3819 goto out_err;
3820 }
3821
3822 while (1) {
3823 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3824 &survey);
3825 if (res == -ENOENT)
3826 break;
3827 if (res)
3828 goto out_err;
3829
3830 if (nl80211_send_survey(skb,
3831 NETLINK_CB(cb->skb).pid,
3832 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3833 netdev,
3834 &survey) < 0)
3835 goto out;
3836 survey_idx++;
3837 }
3838
3839 out:
3840 cb->args[1] = survey_idx;
3841 res = skb->len;
3842 out_err:
67748893 3843 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3844 return res;
3845}
3846
255e737e
JM		 3847static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3848{
b23aa676
SO		 3849 return auth_type <= NL80211_AUTHTYPE_MAX;
3850}
3851
3852static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3853{
3854 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3855 NL80211_WPA_VERSION_2));
3856}
3857
3858static bool nl80211_valid_akm_suite(u32 akm)
3859{
3860 return akm == WLAN_AKM_SUITE_8021X ||
3861 akm == WLAN_AKM_SUITE_PSK;
3862}
3863
3864static bool nl80211_valid_cipher_suite(u32 cipher)
3865{
3866 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3867 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3868 cipher == WLAN_CIPHER_SUITE_TKIP ||
3869 cipher == WLAN_CIPHER_SUITE_CCMP ||
3870 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3871}
3872
b23aa676 3873
636a5d36
JM		 3874static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3875{
4c476991
JB		 3876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3877 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3878 struct ieee80211_channel *chan;
3879 const u8 *bssid, *ssid, *ie = NULL;
3880 int err, ssid_len, ie_len = 0;
3881 enum nl80211_auth_type auth_type;
fffd0934 3882 struct key_parse key;
d5cdfacb 3883 bool local_state_change;
636a5d36 3884
f4a11bb0
JB		 3885 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3886 return -EINVAL;
3887
3888 if (!info->attrs[NL80211_ATTR_MAC])
3889 return -EINVAL;
3890
1778092e
JM		 3891 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3892 return -EINVAL;
3893
19957bb3
JB		 3894 if (!info->attrs[NL80211_ATTR_SSID])
3895 return -EINVAL;
3896
3897 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3898 return -EINVAL;
3899
fffd0934
JB		 3900 err = nl80211_parse_key(info, &key);
3901 if (err)
3902 return err;
3903
3904 if (key.idx >= 0) {
e31b8213
JB		 3905 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3906 return -EINVAL;
fffd0934
JB		 3907 if (!key.p.key || !key.p.key_len)
3908 return -EINVAL;
3909 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3910 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3911 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3912 key.p.key_len != WLAN_KEY_LEN_WEP104))
3913 return -EINVAL;
3914 if (key.idx > 4)
3915 return -EINVAL;
3916 } else {
3917 key.p.key_len = 0;
3918 key.p.key = NULL;
3919 }
3920
afea0b7a
JB		 3921 if (key.idx >= 0) {
3922 int i;
3923 bool ok = false;
3924 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3925 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3926 ok = true;
3927 break;
3928 }
3929 }
4c476991
JB		 3930 if (!ok)
3931 return -EINVAL;
afea0b7a
JB		 3932 }
3933
4c476991
JB		 3934 if (!rdev->ops->auth)
3935 return -EOPNOTSUPP;
636a5d36 3936
074ac8df 3937 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3938 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3939 return -EOPNOTSUPP;
eec60b03 3940
19957bb3 3941 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3942 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3943 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3944 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3945 return -EINVAL;
636a5d36 3946
19957bb3
JB		 3947 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3948 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3949
3950 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3951 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3952 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3953 }
3954
19957bb3 3955 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3956 if (!nl80211_valid_auth_type(auth_type))
3957 return -EINVAL;
636a5d36 3958
d5cdfacb
JM		 3959 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3960
4c476991
JB		 3961 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3962 ssid, ssid_len, ie, ie_len,
3963 key.p.key, key.p.key_len, key.idx,
3964 local_state_change);
636a5d36
JM		 3965}
3966
c0692b8f
JB		 3967static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3968 struct genl_info *info,
3dc27d25
JB		 3969 struct cfg80211_crypto_settings *settings,
3970 int cipher_limit)
b23aa676 3971{
c0b2bbd8
JB		 3972 memset(settings, 0, sizeof(*settings));
3973
b23aa676
SO		 3974 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3975
c0692b8f
JB		 3976 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3977 u16 proto;
3978 proto = nla_get_u16(
3979 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3980 settings->control_port_ethertype = cpu_to_be16(proto);
3981 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3982 proto != ETH_P_PAE)
3983 return -EINVAL;
3984 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3985 settings->control_port_no_encrypt = true;
3986 } else
3987 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3988
b23aa676
SO		 3989 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3990 void *data;
3991 int len, i;
3992
3993 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3994 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3995 settings->n_ciphers_pairwise = len / sizeof(u32);
3996
3997 if (len % sizeof(u32))
3998 return -EINVAL;
3999
3dc27d25 4000 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4001 return -EINVAL;
4002
4003 memcpy(settings->ciphers_pairwise, data, len);
4004
4005 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4006 if (!nl80211_valid_cipher_suite(
4007 settings->ciphers_pairwise[i]))
4008 return -EINVAL;
4009 }
4010
4011 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4012 settings->cipher_group =
4013 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4014 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4015 return -EINVAL;
4016 }
4017
4018 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4019 settings->wpa_versions =
4020 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4021 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4022 return -EINVAL;
4023 }
4024
4025 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4026 void *data;
4027 int len, i;
4028
4029 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4030 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4031 settings->n_akm_suites = len / sizeof(u32);
4032
4033 if (len % sizeof(u32))
4034 return -EINVAL;
4035
4036 memcpy(settings->akm_suites, data, len);
4037
4038 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4039 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4040 return -EINVAL;
4041 }
4042
4043 return 0;
4044}
4045
636a5d36
JM		 4046static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4047{
4c476991
JB		 4048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4049 struct net_device *dev = info->user_ptr[1];
19957bb3 4050 struct cfg80211_crypto_settings crypto;
f444de05 4051 struct ieee80211_channel *chan;
3e5d7649 4052 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4053 int err, ssid_len, ie_len = 0;
4054 bool use_mfp = false;
636a5d36 4055
f4a11bb0
JB		 4056 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4057 return -EINVAL;
4058
4059 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4060 !info->attrs[NL80211_ATTR_SSID] ||
4061 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4062 return -EINVAL;
4063
4c476991
JB		 4064 if (!rdev->ops->assoc)
4065 return -EOPNOTSUPP;
636a5d36 4066
074ac8df 4067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4068 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4069 return -EOPNOTSUPP;
eec60b03 4070
19957bb3 4071 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4072
19957bb3
JB		 4073 chan = ieee80211_get_channel(&rdev->wiphy,
4074 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4075 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4076 return -EINVAL;
636a5d36 4077
19957bb3
JB		 4078 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4079 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4080
4081 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4082 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4083 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4084 }
4085
dc6382ce 4086 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4087 enum nl80211_mfp mfp =
dc6382ce 4088 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4089 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4090 use_mfp = true;
4c476991
JB		 4091 else if (mfp != NL80211_MFP_NO)
4092 return -EINVAL;
dc6382ce
JM		 4093 }
4094
3e5d7649
JB		 4095 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4096 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4097
c0692b8f 4098 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4099 if (!err)
3e5d7649
JB		 4100 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4101 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4102 &crypto);
636a5d36 4103
636a5d36
JM		 4104 return err;
4105}
4106
4107static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4108{
4c476991
JB		 4109 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4110 struct net_device *dev = info->user_ptr[1];
19957bb3 4111 const u8 *ie = NULL, *bssid;
4c476991 4112 int ie_len = 0;
19957bb3 4113 u16 reason_code;
d5cdfacb 4114 bool local_state_change;
636a5d36 4115
f4a11bb0
JB		 4116 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4117 return -EINVAL;
4118
4119 if (!info->attrs[NL80211_ATTR_MAC])
4120 return -EINVAL;
4121
4122 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4123 return -EINVAL;
4124
4c476991
JB		 4125 if (!rdev->ops->deauth)
4126 return -EOPNOTSUPP;
636a5d36 4127
074ac8df 4128 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4129 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4130 return -EOPNOTSUPP;
eec60b03 4131
19957bb3 4132 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4133
19957bb3
JB		 4134 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4135 if (reason_code == 0) {
f4a11bb0 4136 /* Reason Code 0 is reserved */
4c476991 4137 return -EINVAL;
255e737e 4138 }
636a5d36
JM		 4139
4140 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4141 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4142 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4143 }
4144
d5cdfacb
JM		 4145 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4146
4c476991
JB		 4147 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4148 local_state_change);
636a5d36
JM		 4149}
4150
4151static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4152{
4c476991
JB		 4153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4154 struct net_device *dev = info->user_ptr[1];
19957bb3 4155 const u8 *ie = NULL, *bssid;
4c476991 4156 int ie_len = 0;
19957bb3 4157 u16 reason_code;
d5cdfacb 4158 bool local_state_change;
636a5d36 4159
f4a11bb0
JB		 4160 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4161 return -EINVAL;
4162
4163 if (!info->attrs[NL80211_ATTR_MAC])
4164 return -EINVAL;
4165
4166 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4167 return -EINVAL;
4168
4c476991
JB		 4169 if (!rdev->ops->disassoc)
4170 return -EOPNOTSUPP;
636a5d36 4171
074ac8df 4172 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4173 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4174 return -EOPNOTSUPP;
eec60b03 4175
19957bb3 4176 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4177
19957bb3
JB		 4178 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4179 if (reason_code == 0) {
f4a11bb0 4180 /* Reason Code 0 is reserved */
4c476991 4181 return -EINVAL;
255e737e 4182 }
636a5d36
JM		 4183
4184 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4185 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4186 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4187 }
4188
d5cdfacb
JM		 4189 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4190
4c476991
JB		 4191 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4192 local_state_change);
636a5d36
JM		 4193}
4194
dd5b4cc7
FF		 4195static bool
4196nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4197 int mcast_rate[IEEE80211_NUM_BANDS],
4198 int rateval)
4199{
4200 struct wiphy *wiphy = &rdev->wiphy;
4201 bool found = false;
4202 int band, i;
4203
4204 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4205 struct ieee80211_supported_band *sband;
4206
4207 sband = wiphy->bands[band];
4208 if (!sband)
4209 continue;
4210
4211 for (i = 0; i < sband->n_bitrates; i++) {
4212 if (sband->bitrates[i].bitrate == rateval) {
4213 mcast_rate[band] = i + 1;
4214 found = true;
4215 break;
4216 }
4217 }
4218 }
4219
4220 return found;
4221}
4222
04a773ad
JB		 4223static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4224{
4c476991
JB		 4225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4226 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4227 struct cfg80211_ibss_params ibss;
4228 struct wiphy *wiphy;
fffd0934 4229 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4230 int err;
4231
8e30bc55
JB		 4232 memset(&ibss, 0, sizeof(ibss));
4233
04a773ad
JB		 4234 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4235 return -EINVAL;
4236
4237 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4238 !info->attrs[NL80211_ATTR_SSID] ||
4239 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4240 return -EINVAL;
4241
8e30bc55
JB		 4242 ibss.beacon_interval = 100;
4243
4244 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4245 ibss.beacon_interval =
4246 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4247 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4248 return -EINVAL;
4249 }
4250
4c476991
JB		 4251 if (!rdev->ops->join_ibss)
4252 return -EOPNOTSUPP;
04a773ad 4253
4c476991
JB		 4254 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4255 return -EOPNOTSUPP;
04a773ad 4256
79c97e97 4257 wiphy = &rdev->wiphy;
04a773ad
JB		 4258
4259 if (info->attrs[NL80211_ATTR_MAC])
4260 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4261 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4262 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4263
4264 if (info->attrs[NL80211_ATTR_IE]) {
4265 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4266 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4267 }
4268
4269 ibss.channel = ieee80211_get_channel(wiphy,
4270 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4271 if (!ibss.channel ||
4272 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4273 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4274 return -EINVAL;
04a773ad
JB		 4275
4276 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4277 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4278
fbd2c8dc
TP		 4279 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4280 u8 *rates =
4281 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4282 int n_rates =
4283 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4284 struct ieee80211_supported_band *sband =
4285 wiphy->bands[ibss.channel->band];
4286 int i, j;
4287
4c476991
JB		 4288 if (n_rates == 0)
4289 return -EINVAL;
fbd2c8dc
TP		 4290
4291 for (i = 0; i < n_rates; i++) {
4292 int rate = (rates[i] & 0x7f) * 5;
4293 bool found = false;
4294
4295 for (j = 0; j < sband->n_bitrates; j++) {
4296 if (sband->bitrates[j].bitrate == rate) {
4297 found = true;
4298 ibss.basic_rates |= BIT(j);
4299 break;
4300 }
4301 }
4c476991
JB		 4302 if (!found)
4303 return -EINVAL;
fbd2c8dc 4304 }
fbd2c8dc 4305 }
dd5b4cc7
FF		 4306
4307 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4308 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4309 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4310 return -EINVAL;
fbd2c8dc 4311
4c476991
JB		 4312 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4313 connkeys = nl80211_parse_connkeys(rdev,
4314 info->attrs[NL80211_ATTR_KEYS]);
4315 if (IS_ERR(connkeys))
4316 return PTR_ERR(connkeys);
4317 }
04a773ad 4318
4c476991 4319 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4320 if (err)
4321 kfree(connkeys);
04a773ad
JB		 4322 return err;
4323}
4324
4325static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4326{
4c476991
JB		 4327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4328 struct net_device *dev = info->user_ptr[1];
04a773ad 4329
4c476991
JB		 4330 if (!rdev->ops->leave_ibss)
4331 return -EOPNOTSUPP;
04a773ad 4332
4c476991
JB		 4333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4334 return -EOPNOTSUPP;
04a773ad 4335
4c476991 4336 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4337}
4338
aff89a9b
JB		 4339#ifdef CONFIG_NL80211_TESTMODE
4340static struct genl_multicast_group nl80211_testmode_mcgrp = {
4341 .name = "testmode",
4342};
4343
4344static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4345{
4c476991 4346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4347 int err;
4348
4349 if (!info->attrs[NL80211_ATTR_TESTDATA])
4350 return -EINVAL;
4351
aff89a9b
JB		 4352 err = -EOPNOTSUPP;
4353 if (rdev->ops->testmode_cmd) {
4354 rdev->testmode_info = info;
4355 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4356 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4357 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4358 rdev->testmode_info = NULL;
4359 }
4360
aff89a9b
JB		 4361 return err;
4362}
4363
71063f0e
WYG		 4364static int nl80211_testmode_dump(struct sk_buff *skb,
4365 struct netlink_callback *cb)
4366{
4367 struct cfg80211_registered_device *dev;
4368 int err;
4369 long phy_idx;
4370 void *data = NULL;
4371 int data_len = 0;
4372
4373 if (cb->args[0]) {
4374 /*
4375 * 0 is a valid index, but not valid for args[0],
4376 * so we need to offset by 1.
4377 */
4378 phy_idx = cb->args[0] - 1;
4379 } else {
4380 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4381 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4382 nl80211_policy);
4383 if (err)
4384 return err;
4385 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4386 return -EINVAL;
4387 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4388 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4389 cb->args[1] =
4390 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4391 }
4392
4393 if (cb->args[1]) {
4394 data = nla_data((void *)cb->args[1]);
4395 data_len = nla_len((void *)cb->args[1]);
4396 }
4397
4398 mutex_lock(&cfg80211_mutex);
4399 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4400 if (!dev) {
4401 mutex_unlock(&cfg80211_mutex);
4402 return -ENOENT;
4403 }
4404 cfg80211_lock_rdev(dev);
4405 mutex_unlock(&cfg80211_mutex);
4406
4407 if (!dev->ops->testmode_dump) {
4408 err = -EOPNOTSUPP;
4409 goto out_err;
4410 }
4411
4412 while (1) {
4413 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4414 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4415 NL80211_CMD_TESTMODE);
4416 struct nlattr *tmdata;
4417
4418 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4419 genlmsg_cancel(skb, hdr);
4420 break;
4421 }
4422
4423 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4424 if (!tmdata) {
4425 genlmsg_cancel(skb, hdr);
4426 break;
4427 }
4428 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4429 data, data_len);
4430 nla_nest_end(skb, tmdata);
4431
4432 if (err == -ENOBUFS || err == -ENOENT) {
4433 genlmsg_cancel(skb, hdr);
4434 break;
4435 } else if (err) {
4436 genlmsg_cancel(skb, hdr);
4437 goto out_err;
4438 }
4439
4440 genlmsg_end(skb, hdr);
4441 }
4442
4443 err = skb->len;
4444 /* see above */
4445 cb->args[0] = phy_idx + 1;
4446 out_err:
4447 cfg80211_unlock_rdev(dev);
4448 return err;
4449}
4450
aff89a9b
JB		 4451static struct sk_buff *
4452__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4453 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4454{
4455 struct sk_buff *skb;
4456 void *hdr;
4457 struct nlattr *data;
4458
4459 skb = nlmsg_new(approxlen + 100, gfp);
4460 if (!skb)
4461 return NULL;
4462
4463 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4464 if (!hdr) {
4465 kfree_skb(skb);
4466 return NULL;
4467 }
4468
4469 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4470 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4471
4472 ((void **)skb->cb)[0] = rdev;
4473 ((void **)skb->cb)[1] = hdr;
4474 ((void **)skb->cb)[2] = data;
4475
4476 return skb;
4477
4478 nla_put_failure:
4479 kfree_skb(skb);
4480 return NULL;
4481}
4482
4483struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4484 int approxlen)
4485{
4486 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4487
4488 if (WARN_ON(!rdev->testmode_info))
4489 return NULL;
4490
4491 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4492 rdev->testmode_info->snd_pid,
4493 rdev->testmode_info->snd_seq,
4494 GFP_KERNEL);
4495}
4496EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4497
4498int cfg80211_testmode_reply(struct sk_buff *skb)
4499{
4500 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4501 void *hdr = ((void **)skb->cb)[1];
4502 struct nlattr *data = ((void **)skb->cb)[2];
4503
4504 if (WARN_ON(!rdev->testmode_info)) {
4505 kfree_skb(skb);
4506 return -EINVAL;
4507 }
4508
4509 nla_nest_end(skb, data);
4510 genlmsg_end(skb, hdr);
4511 return genlmsg_reply(skb, rdev->testmode_info);
4512}
4513EXPORT_SYMBOL(cfg80211_testmode_reply);
4514
4515struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4516 int approxlen, gfp_t gfp)
4517{
4518 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4519
4520 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4521}
4522EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4523
4524void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4525{
4526 void *hdr = ((void **)skb->cb)[1];
4527 struct nlattr *data = ((void **)skb->cb)[2];
4528
4529 nla_nest_end(skb, data);
4530 genlmsg_end(skb, hdr);
4531 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4532}
4533EXPORT_SYMBOL(cfg80211_testmode_event);
4534#endif
4535
b23aa676
SO		 4536static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4537{
4c476991
JB		 4538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4539 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4540 struct cfg80211_connect_params connect;
4541 struct wiphy *wiphy;
fffd0934 4542 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4543 int err;
4544
4545 memset(&connect, 0, sizeof(connect));
4546
4547 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4548 return -EINVAL;
4549
4550 if (!info->attrs[NL80211_ATTR_SSID] ||
4551 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4552 return -EINVAL;
4553
4554 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4555 connect.auth_type =
4556 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4557 if (!nl80211_valid_auth_type(connect.auth_type))
4558 return -EINVAL;
4559 } else
4560 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4561
4562 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4563
c0692b8f 4564 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4565 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4566 if (err)
4567 return err;
b23aa676 4568
074ac8df 4569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4571 return -EOPNOTSUPP;
b23aa676 4572
79c97e97 4573 wiphy = &rdev->wiphy;
b23aa676 4574
b23aa676
SO		 4575 if (info->attrs[NL80211_ATTR_MAC])
4576 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4577 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4578 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4579
4580 if (info->attrs[NL80211_ATTR_IE]) {
4581 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4582 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4583 }
4584
4585 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4586 connect.channel =
4587 ieee80211_get_channel(wiphy,
4588 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4589 if (!connect.channel ||
4c476991
JB		 4590 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4591 return -EINVAL;
b23aa676
SO		 4592 }
4593
fffd0934
JB		 4594 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4595 connkeys = nl80211_parse_connkeys(rdev,
4596 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4597 if (IS_ERR(connkeys))
4598 return PTR_ERR(connkeys);
fffd0934
JB		 4599 }
4600
4601 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4602 if (err)
4603 kfree(connkeys);
b23aa676
SO		 4604 return err;
4605}
4606
4607static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4608{
4c476991
JB		 4609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4610 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4611 u16 reason;
4612
4613 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4614 reason = WLAN_REASON_DEAUTH_LEAVING;
4615 else
4616 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4617
4618 if (reason == 0)
4619 return -EINVAL;
4620
074ac8df 4621 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4622 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4623 return -EOPNOTSUPP;
b23aa676 4624
4c476991 4625 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4626}
4627
463d0183
JB		 4628static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4629{
4c476991 4630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4631 struct net *net;
4632 int err;
4633 u32 pid;
4634
4635 if (!info->attrs[NL80211_ATTR_PID])
4636 return -EINVAL;
4637
4638 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4639
463d0183 4640 net = get_net_ns_by_pid(pid);
4c476991
JB		 4641 if (IS_ERR(net))
4642 return PTR_ERR(net);
463d0183
JB		 4643
4644 err = 0;
4645
4646 /* check if anything to do */
4c476991
JB		 4647 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4648 err = cfg80211_switch_netns(rdev, net);
463d0183 4649
463d0183 4650 put_net(net);
463d0183
JB		 4651 return err;
4652}
4653
67fbb16b
SO		 4654static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4655{
4c476991 4656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4657 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4658 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4659 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4660 struct cfg80211_pmksa pmksa;
4661
4662 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4663
4664 if (!info->attrs[NL80211_ATTR_MAC])
4665 return -EINVAL;
4666
4667 if (!info->attrs[NL80211_ATTR_PMKID])
4668 return -EINVAL;
4669
67fbb16b
SO		 4670 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4671 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4672
074ac8df 4673 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4674 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4675 return -EOPNOTSUPP;
67fbb16b
SO		 4676
4677 switch (info->genlhdr->cmd) {
4678 case NL80211_CMD_SET_PMKSA:
4679 rdev_ops = rdev->ops->set_pmksa;
4680 break;
4681 case NL80211_CMD_DEL_PMKSA:
4682 rdev_ops = rdev->ops->del_pmksa;
4683 break;
4684 default:
4685 WARN_ON(1);
4686 break;
4687 }
4688
4c476991
JB		 4689 if (!rdev_ops)
4690 return -EOPNOTSUPP;
67fbb16b 4691
4c476991 4692 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4693}
4694
4695static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4696{
4c476991
JB		 4697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4698 struct net_device *dev = info->user_ptr[1];
67fbb16b 4699
074ac8df 4700 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4701 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4702 return -EOPNOTSUPP;
67fbb16b 4703
4c476991
JB		 4704 if (!rdev->ops->flush_pmksa)
4705 return -EOPNOTSUPP;
67fbb16b 4706
4c476991 4707 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4708}
4709
9588bbd5
JM		 4710static int nl80211_remain_on_channel(struct sk_buff *skb,
4711 struct genl_info *info)
4712{
4c476991
JB		 4713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4714 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4715 struct ieee80211_channel *chan;
4716 struct sk_buff *msg;
4717 void *hdr;
4718 u64 cookie;
4719 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4720 u32 freq, duration;
4721 int err;
4722
4723 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4724 !info->attrs[NL80211_ATTR_DURATION])
4725 return -EINVAL;
4726
4727 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4728
4729 /*
4730 * We should be on that channel for at least one jiffie,
4731 * and more than 5 seconds seems excessive.
4732 */
a293911d
JB		 4733 if (!duration || !msecs_to_jiffies(duration) ||
4734 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4735 return -EINVAL;
4736
4c476991
JB		 4737 if (!rdev->ops->remain_on_channel)
4738 return -EOPNOTSUPP;
9588bbd5 4739
9588bbd5
JM		 4740 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4741 channel_type = nla_get_u32(
4742 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4743 if (channel_type != NL80211_CHAN_NO_HT &&
4744 channel_type != NL80211_CHAN_HT20 &&
4745 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4746 channel_type != NL80211_CHAN_HT40MINUS)
4747 return -EINVAL;
9588bbd5
JM		 4748 }
4749
4750 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4751 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4752 if (chan == NULL)
4753 return -EINVAL;
9588bbd5
JM		 4754
4755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4756 if (!msg)
4757 return -ENOMEM;
9588bbd5
JM		 4758
4759 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4760 NL80211_CMD_REMAIN_ON_CHANNEL);
4761
4762 if (IS_ERR(hdr)) {
4763 err = PTR_ERR(hdr);
4764 goto free_msg;
4765 }
4766
4767 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4768 channel_type, duration, &cookie);
4769
4770 if (err)
4771 goto free_msg;
4772
4773 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4774
4775 genlmsg_end(msg, hdr);
4c476991
JB		 4776
4777 return genlmsg_reply(msg, info);
9588bbd5
JM		 4778
4779 nla_put_failure:
4780 err = -ENOBUFS;
4781 free_msg:
4782 nlmsg_free(msg);
9588bbd5
JM		 4783 return err;
4784}
4785
4786static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4787 struct genl_info *info)
4788{
4c476991
JB		 4789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4790 struct net_device *dev = info->user_ptr[1];
9588bbd5 4791 u64 cookie;
9588bbd5
JM		 4792
4793 if (!info->attrs[NL80211_ATTR_COOKIE])
4794 return -EINVAL;
4795
4c476991
JB		 4796 if (!rdev->ops->cancel_remain_on_channel)
4797 return -EOPNOTSUPP;
9588bbd5 4798
9588bbd5
JM		 4799 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4800
4c476991 4801 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4802}
4803
13ae75b1
JM		 4804static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4805 u8 *rates, u8 rates_len)
4806{
4807 u8 i;
4808 u32 mask = 0;
4809
4810 for (i = 0; i < rates_len; i++) {
4811 int rate = (rates[i] & 0x7f) * 5;
4812 int ridx;
4813 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4814 struct ieee80211_rate *srate =
4815 &sband->bitrates[ridx];
4816 if (rate == srate->bitrate) {
4817 mask |= 1 << ridx;
4818 break;
4819 }
4820 }
4821 if (ridx == sband->n_bitrates)
4822 return 0; /* rate not found */
4823 }
4824
4825 return mask;
4826}
4827
b54452b0 4828static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4829 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4830 .len = NL80211_MAX_SUPP_RATES },
4831};
4832
4833static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4834 struct genl_info *info)
4835{
4836 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4838 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4839 int rem, i;
4840 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4841 struct nlattr *tx_rates;
4842 struct ieee80211_supported_band *sband;
4843
4844 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4845 return -EINVAL;
4846
4c476991
JB		 4847 if (!rdev->ops->set_bitrate_mask)
4848 return -EOPNOTSUPP;
13ae75b1
JM		 4849
4850 memset(&mask, 0, sizeof(mask));
4851 /* Default to all rates enabled */
4852 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4853 sband = rdev->wiphy.bands[i];
4854 mask.control[i].legacy =
4855 sband ? (1 << sband->n_bitrates) - 1 : 0;
4856 }
4857
4858 /*
4859 * The nested attribute uses enum nl80211_band as the index. This maps
4860 * directly to the enum ieee80211_band values used in cfg80211.
4861 */
4862 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4863 {
4864 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4865 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4866 return -EINVAL;
13ae75b1 4867 sband = rdev->wiphy.bands[band];
4c476991
JB		 4868 if (sband == NULL)
4869 return -EINVAL;
13ae75b1
JM		 4870 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4871 nla_len(tx_rates), nl80211_txattr_policy);
4872 if (tb[NL80211_TXRATE_LEGACY]) {
4873 mask.control[band].legacy = rateset_to_mask(
4874 sband,
4875 nla_data(tb[NL80211_TXRATE_LEGACY]),
4876 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4877 if (mask.control[band].legacy == 0)
4878 return -EINVAL;
13ae75b1
JM		 4879 }
4880 }
4881
4c476991 4882 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4883}
4884
2e161f78 4885static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4886{
4c476991
JB		 4887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4888 struct net_device *dev = info->user_ptr[1];
2e161f78 4889 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4890
4891 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4892 return -EINVAL;
4893
2e161f78
JB		 4894 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4895 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4896
9d38d85d 4897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4899 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4900 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4901 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4902 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4903 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4904 return -EOPNOTSUPP;
026331c4
JM		 4905
4906 /* not much point in registering if we can't reply */
4c476991
JB		 4907 if (!rdev->ops->mgmt_tx)
4908 return -EOPNOTSUPP;
026331c4 4909
4c476991 4910 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4911 frame_type,
026331c4
JM		 4912 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4913 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4914}
4915
2e161f78 4916static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4917{
4c476991
JB		 4918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4919 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4920 struct ieee80211_channel *chan;
4921 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4922 bool channel_type_valid = false;
026331c4
JM		 4923 u32 freq;
4924 int err;
4925 void *hdr;
4926 u64 cookie;
4927 struct sk_buff *msg;
f7ca38df
JB		 4928 unsigned int wait = 0;
4929 bool offchan;
026331c4
JM		 4930
4931 if (!info->attrs[NL80211_ATTR_FRAME] ||
4932 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4933 return -EINVAL;
4934
4c476991
JB		 4935 if (!rdev->ops->mgmt_tx)
4936 return -EOPNOTSUPP;
026331c4 4937
9d38d85d 4938 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4939 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4940 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4941 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4942 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4943 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4944 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4945 return -EOPNOTSUPP;
026331c4 4946
f7ca38df
JB		 4947 if (info->attrs[NL80211_ATTR_DURATION]) {
4948 if (!rdev->ops->mgmt_tx_cancel_wait)
4949 return -EINVAL;
4950 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4951 }
4952
026331c4
JM		 4953 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4954 channel_type = nla_get_u32(
4955 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4956 if (channel_type != NL80211_CHAN_NO_HT &&
4957 channel_type != NL80211_CHAN_HT20 &&
4958 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4959 channel_type != NL80211_CHAN_HT40MINUS)
4960 return -EINVAL;
252aa631 4961 channel_type_valid = true;
026331c4
JM		 4962 }
4963
f7ca38df
JB		 4964 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4965
026331c4
JM		 4966 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4967 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4968 if (chan == NULL)
4969 return -EINVAL;
026331c4
JM		 4970
4971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4972 if (!msg)
4973 return -ENOMEM;
026331c4
JM		 4974
4975 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4976 NL80211_CMD_FRAME);
026331c4
JM		 4977
4978 if (IS_ERR(hdr)) {
4979 err = PTR_ERR(hdr);
4980 goto free_msg;
4981 }
f7ca38df
JB		 4982 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4983 channel_type_valid, wait,
2e161f78
JB		 4984 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4985 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4986 &cookie);
026331c4
JM		 4987 if (err)
4988 goto free_msg;
4989
4990 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4991
4992 genlmsg_end(msg, hdr);
4c476991 4993 return genlmsg_reply(msg, info);
026331c4
JM		 4994
4995 nla_put_failure:
4996 err = -ENOBUFS;
4997 free_msg:
4998 nlmsg_free(msg);
026331c4
JM		 4999 return err;
5000}
5001
f7ca38df
JB		 5002static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5003{
5004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5005 struct net_device *dev = info->user_ptr[1];
5006 u64 cookie;
5007
5008 if (!info->attrs[NL80211_ATTR_COOKIE])
5009 return -EINVAL;
5010
5011 if (!rdev->ops->mgmt_tx_cancel_wait)
5012 return -EOPNOTSUPP;
5013
5014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5016 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5017 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5018 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5019 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5020 return -EOPNOTSUPP;
5021
5022 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5023
5024 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5025}
5026
ffb9eb3d
KV		 5027static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5028{
4c476991 5029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5030 struct wireless_dev *wdev;
4c476991 5031 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5032 u8 ps_state;
5033 bool state;
5034 int err;
5035
4c476991
JB		 5036 if (!info->attrs[NL80211_ATTR_PS_STATE])
5037 return -EINVAL;
ffb9eb3d
KV		 5038
5039 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5040
4c476991
JB		 5041 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5042 return -EINVAL;
ffb9eb3d
KV		 5043
5044 wdev = dev->ieee80211_ptr;
5045
4c476991
JB		 5046 if (!rdev->ops->set_power_mgmt)
5047 return -EOPNOTSUPP;
ffb9eb3d
KV		 5048
5049 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5050
5051 if (state == wdev->ps)
4c476991 5052 return 0;
ffb9eb3d 5053
4c476991
JB		 5054 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5055 wdev->ps_timeout);
5056 if (!err)
5057 wdev->ps = state;
ffb9eb3d
KV		 5058 return err;
5059}
5060
5061static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5062{
4c476991 5063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5064 enum nl80211_ps_state ps_state;
5065 struct wireless_dev *wdev;
4c476991 5066 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5067 struct sk_buff *msg;
5068 void *hdr;
5069 int err;
5070
ffb9eb3d
KV		 5071 wdev = dev->ieee80211_ptr;
5072
4c476991
JB		 5073 if (!rdev->ops->set_power_mgmt)
5074 return -EOPNOTSUPP;
ffb9eb3d
KV		 5075
5076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5077 if (!msg)
5078 return -ENOMEM;
ffb9eb3d
KV		 5079
5080 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5081 NL80211_CMD_GET_POWER_SAVE);
5082 if (!hdr) {
4c476991 5083 err = -ENOBUFS;
ffb9eb3d
KV		 5084 goto free_msg;
5085 }
5086
5087 if (wdev->ps)
5088 ps_state = NL80211_PS_ENABLED;
5089 else
5090 ps_state = NL80211_PS_DISABLED;
5091
5092 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5093
5094 genlmsg_end(msg, hdr);
4c476991 5095 return genlmsg_reply(msg, info);
ffb9eb3d 5096
4c476991 5097 nla_put_failure:
ffb9eb3d 5098 err = -ENOBUFS;
4c476991 5099 free_msg:
ffb9eb3d 5100 nlmsg_free(msg);
ffb9eb3d
KV		 5101 return err;
5102}
5103
d6dc1a38
JO		 5104static struct nla_policy
5105nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5106 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5107 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5108 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5109};
5110
5111static int nl80211_set_cqm_rssi(struct genl_info *info,
5112 s32 threshold, u32 hysteresis)
5113{
4c476991 5114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5115 struct wireless_dev *wdev;
4c476991 5116 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5117
5118 if (threshold > 0)
5119 return -EINVAL;
5120
d6dc1a38
JO		 5121 wdev = dev->ieee80211_ptr;
5122
4c476991
JB		 5123 if (!rdev->ops->set_cqm_rssi_config)
5124 return -EOPNOTSUPP;
d6dc1a38 5125
074ac8df 5126 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5127 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5128 return -EOPNOTSUPP;
d6dc1a38 5129
4c476991
JB		 5130 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5131 threshold, hysteresis);
d6dc1a38
JO		 5132}
5133
5134static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5135{
5136 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5137 struct nlattr *cqm;
5138 int err;
5139
5140 cqm = info->attrs[NL80211_ATTR_CQM];
5141 if (!cqm) {
5142 err = -EINVAL;
5143 goto out;
5144 }
5145
5146 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5147 nl80211_attr_cqm_policy);
5148 if (err)
5149 goto out;
5150
5151 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5152 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5153 s32 threshold;
5154 u32 hysteresis;
5155 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5156 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5157 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5158 } else
5159 err = -EINVAL;
5160
5161out:
5162 return err;
5163}
5164
29cbe68c
JB		 5165static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5166{
5167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5168 struct net_device *dev = info->user_ptr[1];
5169 struct mesh_config cfg;
c80d545d 5170 struct mesh_setup setup;
29cbe68c
JB		 5171 int err;
5172
5173 /* start with default */
5174 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5175 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5176
24bdd9f4 5177 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5178 /* and parse parameters if given */
24bdd9f4 5179 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5180 if (err)
5181 return err;
5182 }
5183
5184 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5185 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5186 return -EINVAL;
5187
c80d545d
JC		 5188 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5189 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5190
5191 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5192 /* parse additional setup parameters if given */
5193 err = nl80211_parse_mesh_setup(info, &setup);
5194 if (err)
5195 return err;
5196 }
5197
5198 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5199}
5200
5201static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5202{
5203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5204 struct net_device *dev = info->user_ptr[1];
5205
5206 return cfg80211_leave_mesh(rdev, dev);
5207}
5208
ff1b6e69
JB		 5209static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5210{
5211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5212 struct sk_buff *msg;
5213 void *hdr;
5214
5215 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5216 return -EOPNOTSUPP;
5217
5218 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5219 if (!msg)
5220 return -ENOMEM;
5221
5222 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5223 NL80211_CMD_GET_WOWLAN);
5224 if (!hdr)
5225 goto nla_put_failure;
5226
5227 if (rdev->wowlan) {
5228 struct nlattr *nl_wowlan;
5229
5230 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5231 if (!nl_wowlan)
5232 goto nla_put_failure;
5233
5234 if (rdev->wowlan->any)
5235 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5236 if (rdev->wowlan->disconnect)
5237 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5238 if (rdev->wowlan->magic_pkt)
5239 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5240 if (rdev->wowlan->n_patterns) {
5241 struct nlattr *nl_pats, *nl_pat;
5242 int i, pat_len;
5243
5244 nl_pats = nla_nest_start(msg,
5245 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5246 if (!nl_pats)
5247 goto nla_put_failure;
5248
5249 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5250 nl_pat = nla_nest_start(msg, i + 1);
5251 if (!nl_pat)
5252 goto nla_put_failure;
5253 pat_len = rdev->wowlan->patterns[i].pattern_len;
5254 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5255 DIV_ROUND_UP(pat_len, 8),
5256 rdev->wowlan->patterns[i].mask);
5257 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5258 pat_len,
5259 rdev->wowlan->patterns[i].pattern);
5260 nla_nest_end(msg, nl_pat);
5261 }
5262 nla_nest_end(msg, nl_pats);
5263 }
5264
5265 nla_nest_end(msg, nl_wowlan);
5266 }
5267
5268 genlmsg_end(msg, hdr);
5269 return genlmsg_reply(msg, info);
5270
5271nla_put_failure:
5272 nlmsg_free(msg);
5273 return -ENOBUFS;
5274}
5275
5276static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5277{
5278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5279 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5280 struct cfg80211_wowlan no_triggers = {};
5281 struct cfg80211_wowlan new_triggers = {};
5282 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5283 int err, i;
5284
5285 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5286 return -EOPNOTSUPP;
5287
5288 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5289 goto no_triggers;
5290
5291 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5292 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5293 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5294 nl80211_wowlan_policy);
5295 if (err)
5296 return err;
5297
5298 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5299 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5300 return -EINVAL;
5301 new_triggers.any = true;
5302 }
5303
5304 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5305 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5306 return -EINVAL;
5307 new_triggers.disconnect = true;
5308 }
5309
5310 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5311 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5312 return -EINVAL;
5313 new_triggers.magic_pkt = true;
5314 }
5315
5316 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5317 struct nlattr *pat;
5318 int n_patterns = 0;
5319 int rem, pat_len, mask_len;
5320 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5321
5322 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5323 rem)
5324 n_patterns++;
5325 if (n_patterns > wowlan->n_patterns)
5326 return -EINVAL;
5327
5328 new_triggers.patterns = kcalloc(n_patterns,
5329 sizeof(new_triggers.patterns[0]),
5330 GFP_KERNEL);
5331 if (!new_triggers.patterns)
5332 return -ENOMEM;
5333
5334 new_triggers.n_patterns = n_patterns;
5335 i = 0;
5336
5337 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5338 rem) {
5339 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5340 nla_data(pat), nla_len(pat), NULL);
5341 err = -EINVAL;
5342 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5343 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5344 goto error;
5345 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5346 mask_len = DIV_ROUND_UP(pat_len, 8);
5347 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5348 mask_len)
5349 goto error;
5350 if (pat_len > wowlan->pattern_max_len ||
5351 pat_len < wowlan->pattern_min_len)
5352 goto error;
5353
5354 new_triggers.patterns[i].mask =
5355 kmalloc(mask_len + pat_len, GFP_KERNEL);
5356 if (!new_triggers.patterns[i].mask) {
5357 err = -ENOMEM;
5358 goto error;
5359 }
5360 new_triggers.patterns[i].pattern =
5361 new_triggers.patterns[i].mask + mask_len;
5362 memcpy(new_triggers.patterns[i].mask,
5363 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5364 mask_len);
5365 new_triggers.patterns[i].pattern_len = pat_len;
5366 memcpy(new_triggers.patterns[i].pattern,
5367 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5368 pat_len);
5369 i++;
5370 }
5371 }
5372
5373 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5374 struct cfg80211_wowlan *ntrig;
5375 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5376 GFP_KERNEL);
5377 if (!ntrig) {
5378 err = -ENOMEM;
5379 goto error;
5380 }
5381 cfg80211_rdev_free_wowlan(rdev);
5382 rdev->wowlan = ntrig;
5383 } else {
5384 no_triggers:
5385 cfg80211_rdev_free_wowlan(rdev);
5386 rdev->wowlan = NULL;
5387 }
5388
5389 return 0;
5390 error:
5391 for (i = 0; i < new_triggers.n_patterns; i++)
5392 kfree(new_triggers.patterns[i].mask);
5393 kfree(new_triggers.patterns);
5394 return err;
5395}
5396
4c476991
JB		 5397#define NL80211_FLAG_NEED_WIPHY 0x01
5398#define NL80211_FLAG_NEED_NETDEV 0x02
5399#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5400#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5401#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5402 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5403
5404static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5405 struct genl_info *info)
5406{
5407 struct cfg80211_registered_device *rdev;
5408 struct net_device *dev;
5409 int err;
5410 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5411
5412 if (rtnl)
5413 rtnl_lock();
5414
5415 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5416 rdev = cfg80211_get_dev_from_info(info);
5417 if (IS_ERR(rdev)) {
5418 if (rtnl)
5419 rtnl_unlock();
5420 return PTR_ERR(rdev);
5421 }
5422 info->user_ptr[0] = rdev;
5423 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5424 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5425 if (err) {
5426 if (rtnl)
5427 rtnl_unlock();
5428 return err;
5429 }
41265714
JB		 5430 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5431 !netif_running(dev)) {
d537f5fd
JB		 5432 cfg80211_unlock_rdev(rdev);
5433 dev_put(dev);
41265714
JB		 5434 if (rtnl)
5435 rtnl_unlock();
5436 return -ENETDOWN;
5437 }
4c476991
JB		 5438 info->user_ptr[0] = rdev;
5439 info->user_ptr[1] = dev;
5440 }
5441
5442 return 0;
5443}
5444
5445static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5446 struct genl_info *info)
5447{
5448 if (info->user_ptr[0])
5449 cfg80211_unlock_rdev(info->user_ptr[0]);
5450 if (info->user_ptr[1])
5451 dev_put(info->user_ptr[1]);
5452 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5453 rtnl_unlock();
5454}
5455
55682965
JB		 5456static struct genl_ops nl80211_ops[] = {
5457 {
5458 .cmd = NL80211_CMD_GET_WIPHY,
5459 .doit = nl80211_get_wiphy,
5460 .dumpit = nl80211_dump_wiphy,
5461 .policy = nl80211_policy,
5462 /* can be retrieved by unprivileged users */
4c476991 5463 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5464 },
5465 {
5466 .cmd = NL80211_CMD_SET_WIPHY,
5467 .doit = nl80211_set_wiphy,
5468 .policy = nl80211_policy,
5469 .flags = GENL_ADMIN_PERM,
4c476991 5470 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5471 },
5472 {
5473 .cmd = NL80211_CMD_GET_INTERFACE,
5474 .doit = nl80211_get_interface,
5475 .dumpit = nl80211_dump_interface,
5476 .policy = nl80211_policy,
5477 /* can be retrieved by unprivileged users */
4c476991 5478 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5479 },
5480 {
5481 .cmd = NL80211_CMD_SET_INTERFACE,
5482 .doit = nl80211_set_interface,
5483 .policy = nl80211_policy,
5484 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5485 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5486 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5487 },
5488 {
5489 .cmd = NL80211_CMD_NEW_INTERFACE,
5490 .doit = nl80211_new_interface,
5491 .policy = nl80211_policy,
5492 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5493 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5494 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5495 },
5496 {
5497 .cmd = NL80211_CMD_DEL_INTERFACE,
5498 .doit = nl80211_del_interface,
5499 .policy = nl80211_policy,
41ade00f 5500 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5501 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5502 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5503 },
5504 {
5505 .cmd = NL80211_CMD_GET_KEY,
5506 .doit = nl80211_get_key,
5507 .policy = nl80211_policy,
5508 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5509 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5510 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5511 },
5512 {
5513 .cmd = NL80211_CMD_SET_KEY,
5514 .doit = nl80211_set_key,
5515 .policy = nl80211_policy,
5516 .flags = GENL_ADMIN_PERM,
41265714 5517 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5518 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5519 },
5520 {
5521 .cmd = NL80211_CMD_NEW_KEY,
5522 .doit = nl80211_new_key,
5523 .policy = nl80211_policy,
5524 .flags = GENL_ADMIN_PERM,
41265714 5525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5526 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5527 },
5528 {
5529 .cmd = NL80211_CMD_DEL_KEY,
5530 .doit = nl80211_del_key,
5531 .policy = nl80211_policy,
55682965 5532 .flags = GENL_ADMIN_PERM,
41265714 5533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5534 NL80211_FLAG_NEED_RTNL,
55682965 5535 },
ed1b6cc7
JB		 5536 {
5537 .cmd = NL80211_CMD_SET_BEACON,
5538 .policy = nl80211_policy,
5539 .flags = GENL_ADMIN_PERM,
5540 .doit = nl80211_addset_beacon,
4c476991
JB		 5541 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5542 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5543 },
5544 {
5545 .cmd = NL80211_CMD_NEW_BEACON,
5546 .policy = nl80211_policy,
5547 .flags = GENL_ADMIN_PERM,
5548 .doit = nl80211_addset_beacon,
4c476991
JB		 5549 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5550 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5551 },
5552 {
5553 .cmd = NL80211_CMD_DEL_BEACON,
5554 .policy = nl80211_policy,
5555 .flags = GENL_ADMIN_PERM,
5556 .doit = nl80211_del_beacon,
4c476991
JB		 5557 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5558 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 5559 },
5727ef1b
JB		 5560 {
5561 .cmd = NL80211_CMD_GET_STATION,
5562 .doit = nl80211_get_station,
2ec600d6 5563 .dumpit = nl80211_dump_station,
5727ef1b 5564 .policy = nl80211_policy,
4c476991
JB		 5565 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5566 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5567 },
5568 {
5569 .cmd = NL80211_CMD_SET_STATION,
5570 .doit = nl80211_set_station,
5571 .policy = nl80211_policy,
5572 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5573 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5574 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5575 },
5576 {
5577 .cmd = NL80211_CMD_NEW_STATION,
5578 .doit = nl80211_new_station,
5579 .policy = nl80211_policy,
5580 .flags = GENL_ADMIN_PERM,
41265714 5581 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5582 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5583 },
5584 {
5585 .cmd = NL80211_CMD_DEL_STATION,
5586 .doit = nl80211_del_station,
5587 .policy = nl80211_policy,
2ec600d6 5588 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5589 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5590 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5591 },
5592 {
5593 .cmd = NL80211_CMD_GET_MPATH,
5594 .doit = nl80211_get_mpath,
5595 .dumpit = nl80211_dump_mpath,
5596 .policy = nl80211_policy,
5597 .flags = GENL_ADMIN_PERM,
41265714 5598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5599 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5600 },
5601 {
5602 .cmd = NL80211_CMD_SET_MPATH,
5603 .doit = nl80211_set_mpath,
5604 .policy = nl80211_policy,
5605 .flags = GENL_ADMIN_PERM,
41265714 5606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5607 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5608 },
5609 {
5610 .cmd = NL80211_CMD_NEW_MPATH,
5611 .doit = nl80211_new_mpath,
5612 .policy = nl80211_policy,
5613 .flags = GENL_ADMIN_PERM,
41265714 5614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5615 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5616 },
5617 {
5618 .cmd = NL80211_CMD_DEL_MPATH,
5619 .doit = nl80211_del_mpath,
5620 .policy = nl80211_policy,
9f1ba906 5621 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5622 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5623 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5624 },
5625 {
5626 .cmd = NL80211_CMD_SET_BSS,
5627 .doit = nl80211_set_bss,
5628 .policy = nl80211_policy,
b2e1b302 5629 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5630 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5631 NL80211_FLAG_NEED_RTNL,
b2e1b302 5632 },
f130347c
LR		 5633 {
5634 .cmd = NL80211_CMD_GET_REG,
5635 .doit = nl80211_get_reg,
5636 .policy = nl80211_policy,
5637 /* can be retrieved by unprivileged users */
5638 },
b2e1b302
LR		 5639 {
5640 .cmd = NL80211_CMD_SET_REG,
5641 .doit = nl80211_set_reg,
5642 .policy = nl80211_policy,
5643 .flags = GENL_ADMIN_PERM,
5644 },
5645 {
5646 .cmd = NL80211_CMD_REQ_SET_REG,
5647 .doit = nl80211_req_set_reg,
5648 .policy = nl80211_policy,
93da9cc1 5649 .flags = GENL_ADMIN_PERM,
5650 },
5651 {
24bdd9f4
JC		 5652 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5653 .doit = nl80211_get_mesh_config,
93da9cc1 5654 .policy = nl80211_policy,
5655 /* can be retrieved by unprivileged users */
4c476991
JB		 5656 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5657 NL80211_FLAG_NEED_RTNL,
93da9cc1 5658 },
5659 {
24bdd9f4
JC		 5660 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5661 .doit = nl80211_update_mesh_config,
93da9cc1 5662 .policy = nl80211_policy,
9aed3cc1 5663 .flags = GENL_ADMIN_PERM,
29cbe68c 5664 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5665 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5666 },
2a519311
JB		 5667 {
5668 .cmd = NL80211_CMD_TRIGGER_SCAN,
5669 .doit = nl80211_trigger_scan,
5670 .policy = nl80211_policy,
5671 .flags = GENL_ADMIN_PERM,
41265714 5672 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5673 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5674 },
5675 {
5676 .cmd = NL80211_CMD_GET_SCAN,
5677 .policy = nl80211_policy,
5678 .dumpit = nl80211_dump_scan,
5679 },
807f8a8c
LC		 5680 {
5681 .cmd = NL80211_CMD_START_SCHED_SCAN,
5682 .doit = nl80211_start_sched_scan,
5683 .policy = nl80211_policy,
5684 .flags = GENL_ADMIN_PERM,
5685 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5686 NL80211_FLAG_NEED_RTNL,
5687 },
5688 {
5689 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5690 .doit = nl80211_stop_sched_scan,
5691 .policy = nl80211_policy,
5692 .flags = GENL_ADMIN_PERM,
5693 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5694 NL80211_FLAG_NEED_RTNL,
5695 },
636a5d36
JM		 5696 {
5697 .cmd = NL80211_CMD_AUTHENTICATE,
5698 .doit = nl80211_authenticate,
5699 .policy = nl80211_policy,
5700 .flags = GENL_ADMIN_PERM,
41265714 5701 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5702 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5703 },
5704 {
5705 .cmd = NL80211_CMD_ASSOCIATE,
5706 .doit = nl80211_associate,
5707 .policy = nl80211_policy,
5708 .flags = GENL_ADMIN_PERM,
41265714 5709 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5710 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5711 },
5712 {
5713 .cmd = NL80211_CMD_DEAUTHENTICATE,
5714 .doit = nl80211_deauthenticate,
5715 .policy = nl80211_policy,
5716 .flags = GENL_ADMIN_PERM,
41265714 5717 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5718 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5719 },
5720 {
5721 .cmd = NL80211_CMD_DISASSOCIATE,
5722 .doit = nl80211_disassociate,
5723 .policy = nl80211_policy,
5724 .flags = GENL_ADMIN_PERM,
41265714 5725 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5726 NL80211_FLAG_NEED_RTNL,
636a5d36 5727 },
04a773ad
JB		 5728 {
5729 .cmd = NL80211_CMD_JOIN_IBSS,
5730 .doit = nl80211_join_ibss,
5731 .policy = nl80211_policy,
5732 .flags = GENL_ADMIN_PERM,
41265714 5733 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5734 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5735 },
5736 {
5737 .cmd = NL80211_CMD_LEAVE_IBSS,
5738 .doit = nl80211_leave_ibss,
5739 .policy = nl80211_policy,
5740 .flags = GENL_ADMIN_PERM,
41265714 5741 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5742 NL80211_FLAG_NEED_RTNL,
04a773ad 5743 },
aff89a9b
JB		 5744#ifdef CONFIG_NL80211_TESTMODE
5745 {
5746 .cmd = NL80211_CMD_TESTMODE,
5747 .doit = nl80211_testmode_do,
71063f0e 5748 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 5749 .policy = nl80211_policy,
5750 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5751 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5752 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5753 },
5754#endif
b23aa676
SO		 5755 {
5756 .cmd = NL80211_CMD_CONNECT,
5757 .doit = nl80211_connect,
5758 .policy = nl80211_policy,
5759 .flags = GENL_ADMIN_PERM,
41265714 5760 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5761 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5762 },
5763 {
5764 .cmd = NL80211_CMD_DISCONNECT,
5765 .doit = nl80211_disconnect,
5766 .policy = nl80211_policy,
5767 .flags = GENL_ADMIN_PERM,
41265714 5768 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5769 NL80211_FLAG_NEED_RTNL,
b23aa676 5770 },
463d0183
JB		 5771 {
5772 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5773 .doit = nl80211_wiphy_netns,
5774 .policy = nl80211_policy,
5775 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5776 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5777 NL80211_FLAG_NEED_RTNL,
463d0183 5778 },
61fa713c
HS		 5779 {
5780 .cmd = NL80211_CMD_GET_SURVEY,
5781 .policy = nl80211_policy,
5782 .dumpit = nl80211_dump_survey,
5783 },
67fbb16b
SO		 5784 {
5785 .cmd = NL80211_CMD_SET_PMKSA,
5786 .doit = nl80211_setdel_pmksa,
5787 .policy = nl80211_policy,
5788 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5789 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5790 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5791 },
5792 {
5793 .cmd = NL80211_CMD_DEL_PMKSA,
5794 .doit = nl80211_setdel_pmksa,
5795 .policy = nl80211_policy,
5796 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5797 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5798 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5799 },
5800 {
5801 .cmd = NL80211_CMD_FLUSH_PMKSA,
5802 .doit = nl80211_flush_pmksa,
5803 .policy = nl80211_policy,
5804 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5805 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5806 NL80211_FLAG_NEED_RTNL,
67fbb16b 5807 },
9588bbd5
JM		 5808 {
5809 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5810 .doit = nl80211_remain_on_channel,
5811 .policy = nl80211_policy,
5812 .flags = GENL_ADMIN_PERM,
41265714 5813 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5814 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5815 },
5816 {
5817 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5818 .doit = nl80211_cancel_remain_on_channel,
5819 .policy = nl80211_policy,
5820 .flags = GENL_ADMIN_PERM,
41265714 5821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5822 NL80211_FLAG_NEED_RTNL,
9588bbd5 5823 },
13ae75b1
JM		 5824 {
5825 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5826 .doit = nl80211_set_tx_bitrate_mask,
5827 .policy = nl80211_policy,
5828 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5829 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5830 NL80211_FLAG_NEED_RTNL,
13ae75b1 5831 },
026331c4 5832 {
2e161f78
JB		 5833 .cmd = NL80211_CMD_REGISTER_FRAME,
5834 .doit = nl80211_register_mgmt,
026331c4
JM		 5835 .policy = nl80211_policy,
5836 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5837 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5838 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5839 },
5840 {
2e161f78
JB		 5841 .cmd = NL80211_CMD_FRAME,
5842 .doit = nl80211_tx_mgmt,
026331c4 5843 .policy = nl80211_policy,
f7ca38df
JB		 5844 .flags = GENL_ADMIN_PERM,
5845 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5846 NL80211_FLAG_NEED_RTNL,
5847 },
5848 {
5849 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5850 .doit = nl80211_tx_mgmt_cancel_wait,
5851 .policy = nl80211_policy,
026331c4 5852 .flags = GENL_ADMIN_PERM,
41265714 5853 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5854 NL80211_FLAG_NEED_RTNL,
026331c4 5855 },
ffb9eb3d
KV		 5856 {
5857 .cmd = NL80211_CMD_SET_POWER_SAVE,
5858 .doit = nl80211_set_power_save,
5859 .policy = nl80211_policy,
5860 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5861 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5862 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5863 },
5864 {
5865 .cmd = NL80211_CMD_GET_POWER_SAVE,
5866 .doit = nl80211_get_power_save,
5867 .policy = nl80211_policy,
5868 /* can be retrieved by unprivileged users */
4c476991
JB		 5869 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5870 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5871 },
d6dc1a38
JO		 5872 {
5873 .cmd = NL80211_CMD_SET_CQM,
5874 .doit = nl80211_set_cqm,
5875 .policy = nl80211_policy,
5876 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5877 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5878 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5879 },
f444de05
JB		 5880 {
5881 .cmd = NL80211_CMD_SET_CHANNEL,
5882 .doit = nl80211_set_channel,
5883 .policy = nl80211_policy,
5884 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5885 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5886 NL80211_FLAG_NEED_RTNL,
f444de05 5887 },
e8347eba
BJ		 5888 {
5889 .cmd = NL80211_CMD_SET_WDS_PEER,
5890 .doit = nl80211_set_wds_peer,
5891 .policy = nl80211_policy,
5892 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5893 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5894 NL80211_FLAG_NEED_RTNL,
e8347eba 5895 },
29cbe68c
JB		 5896 {
5897 .cmd = NL80211_CMD_JOIN_MESH,
5898 .doit = nl80211_join_mesh,
5899 .policy = nl80211_policy,
5900 .flags = GENL_ADMIN_PERM,
5901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5902 NL80211_FLAG_NEED_RTNL,
5903 },
5904 {
5905 .cmd = NL80211_CMD_LEAVE_MESH,
5906 .doit = nl80211_leave_mesh,
5907 .policy = nl80211_policy,
5908 .flags = GENL_ADMIN_PERM,
5909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5910 NL80211_FLAG_NEED_RTNL,
5911 },
ff1b6e69
JB		 5912 {
5913 .cmd = NL80211_CMD_GET_WOWLAN,
5914 .doit = nl80211_get_wowlan,
5915 .policy = nl80211_policy,
5916 /* can be retrieved by unprivileged users */
5917 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5918 NL80211_FLAG_NEED_RTNL,
5919 },
5920 {
5921 .cmd = NL80211_CMD_SET_WOWLAN,
5922 .doit = nl80211_set_wowlan,
5923 .policy = nl80211_policy,
5924 .flags = GENL_ADMIN_PERM,
5925 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5926 NL80211_FLAG_NEED_RTNL,
5927 },
55682965 5928};
9588bbd5 5929
6039f6d2
JM		 5930static struct genl_multicast_group nl80211_mlme_mcgrp = {
5931 .name = "mlme",
5932};
55682965
JB		 5933
5934/* multicast groups */
5935static struct genl_multicast_group nl80211_config_mcgrp = {
5936 .name = "config",
5937};
2a519311
JB		 5938static struct genl_multicast_group nl80211_scan_mcgrp = {
5939 .name = "scan",
5940};
73d54c9e
LR		 5941static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5942 .name = "regulatory",
5943};
55682965
JB		 5944
5945/* notification functions */
5946
5947void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5948{
5949 struct sk_buff *msg;
5950
fd2120ca 5951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5952 if (!msg)
5953 return;
5954
5955 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5956 nlmsg_free(msg);
5957 return;
5958 }
5959
463d0183
JB		 5960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5961 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5962}
5963
362a415d
JB		 5964static int nl80211_add_scan_req(struct sk_buff *msg,
5965 struct cfg80211_registered_device *rdev)
5966{
5967 struct cfg80211_scan_request *req = rdev->scan_req;
5968 struct nlattr *nest;
5969 int i;
5970
667503dd
JB		 5971 ASSERT_RDEV_LOCK(rdev);
5972
362a415d
JB		 5973 if (WARN_ON(!req))
5974 return 0;
5975
5976 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5977 if (!nest)
5978 goto nla_put_failure;
5979 for (i = 0; i < req->n_ssids; i++)
5980 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5981 nla_nest_end(msg, nest);
5982
5983 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5984 if (!nest)
5985 goto nla_put_failure;
5986 for (i = 0; i < req->n_channels; i++)
5987 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5988 nla_nest_end(msg, nest);
5989
5990 if (req->ie)
5991 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5992
5993 return 0;
5994 nla_put_failure:
5995 return -ENOBUFS;
5996}
5997
a538e2d5
JB		 5998static int nl80211_send_scan_msg(struct sk_buff *msg,
5999 struct cfg80211_registered_device *rdev,
6000 struct net_device *netdev,
6001 u32 pid, u32 seq, int flags,
6002 u32 cmd)
2a519311
JB		 6003{
6004 void *hdr;
6005
6006 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6007 if (!hdr)
6008 return -1;
6009
b5850a7a 6010 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6011 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6012
362a415d
JB		 6013 /* ignore errors and send incomplete event anyway */
6014 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6015
6016 return genlmsg_end(msg, hdr);
6017
6018 nla_put_failure:
6019 genlmsg_cancel(msg, hdr);
6020 return -EMSGSIZE;
6021}
6022
807f8a8c
LC		 6023static int
6024nl80211_send_sched_scan_msg(struct sk_buff *msg,
6025 struct cfg80211_registered_device *rdev,
6026 struct net_device *netdev,
6027 u32 pid, u32 seq, int flags, u32 cmd)
6028{
6029 void *hdr;
6030
6031 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6032 if (!hdr)
6033 return -1;
6034
6035 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6036 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6037
6038 return genlmsg_end(msg, hdr);
6039
6040 nla_put_failure:
6041 genlmsg_cancel(msg, hdr);
6042 return -EMSGSIZE;
6043}
6044
a538e2d5
JB		 6045void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6046 struct net_device *netdev)
6047{
6048 struct sk_buff *msg;
6049
6050 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6051 if (!msg)
6052 return;
6053
6054 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6055 NL80211_CMD_TRIGGER_SCAN) < 0) {
6056 nlmsg_free(msg);
6057 return;
6058 }
6059
463d0183
JB		 6060 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6061 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6062}
6063
2a519311
JB		 6064void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6065 struct net_device *netdev)
6066{
6067 struct sk_buff *msg;
6068
fd2120ca 6069 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6070 if (!msg)
6071 return;
6072
a538e2d5
JB		 6073 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6074 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6075 nlmsg_free(msg);
6076 return;
6077 }
6078
463d0183
JB		 6079 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6080 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6081}
6082
6083void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6084 struct net_device *netdev)
6085{
6086 struct sk_buff *msg;
6087
fd2120ca 6088 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6089 if (!msg)
6090 return;
6091
a538e2d5
JB		 6092 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6093 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6094 nlmsg_free(msg);
6095 return;
6096 }
6097
463d0183
JB		 6098 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6099 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6100}
6101
807f8a8c
LC		 6102void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6103 struct net_device *netdev)
6104{
6105 struct sk_buff *msg;
6106
6107 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6108 if (!msg)
6109 return;
6110
6111 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6112 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6113 nlmsg_free(msg);
6114 return;
6115 }
6116
6117 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6118 nl80211_scan_mcgrp.id, GFP_KERNEL);
6119}
6120
6121void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6122 struct net_device *netdev, u32 cmd)
6123{
6124 struct sk_buff *msg;
6125
6126 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6127 if (!msg)
6128 return;
6129
6130 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6131 nlmsg_free(msg);
6132 return;
6133 }
6134
6135 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6136 nl80211_scan_mcgrp.id, GFP_KERNEL);
6137}
6138
73d54c9e
LR		 6139/*
6140 * This can happen on global regulatory changes or device specific settings
6141 * based on custom world regulatory domains.
6142 */
6143void nl80211_send_reg_change_event(struct regulatory_request *request)
6144{
6145 struct sk_buff *msg;
6146 void *hdr;
6147
fd2120ca 6148 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6149 if (!msg)
6150 return;
6151
6152 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6153 if (!hdr) {
6154 nlmsg_free(msg);
6155 return;
6156 }
6157
6158 /* Userspace can always count this one always being set */
6159 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6160
6161 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6162 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6163 NL80211_REGDOM_TYPE_WORLD);
6164 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6165 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6166 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6167 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6168 request->intersect)
6169 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6170 NL80211_REGDOM_TYPE_INTERSECTION);
6171 else {
6172 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6173 NL80211_REGDOM_TYPE_COUNTRY);
6174 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6175 }
6176
6177 if (wiphy_idx_valid(request->wiphy_idx))
6178 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6179
6180 if (genlmsg_end(msg, hdr) < 0) {
6181 nlmsg_free(msg);
6182 return;
6183 }
6184
bc43b28c 6185 rcu_read_lock();
463d0183 6186 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6187 GFP_ATOMIC);
6188 rcu_read_unlock();
73d54c9e
LR		 6189
6190 return;
6191
6192nla_put_failure:
6193 genlmsg_cancel(msg, hdr);
6194 nlmsg_free(msg);
6195}
6196
6039f6d2
JM		 6197static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6198 struct net_device *netdev,
6199 const u8 *buf, size_t len,
e6d6e342 6200 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6201{
6202 struct sk_buff *msg;
6203 void *hdr;
6204
e6d6e342 6205 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6206 if (!msg)
6207 return;
6208
6209 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6210 if (!hdr) {
6211 nlmsg_free(msg);
6212 return;
6213 }
6214
6215 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6216 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6217 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6218
6219 if (genlmsg_end(msg, hdr) < 0) {
6220 nlmsg_free(msg);
6221 return;
6222 }
6223
463d0183
JB		 6224 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6225 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6226 return;
6227
6228 nla_put_failure:
6229 genlmsg_cancel(msg, hdr);
6230 nlmsg_free(msg);
6231}
6232
6233void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6234 struct net_device *netdev, const u8 *buf,
6235 size_t len, gfp_t gfp)
6039f6d2
JM		 6236{
6237 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6238 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6239}
6240
6241void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6242 struct net_device *netdev, const u8 *buf,
e6d6e342 6243 size_t len, gfp_t gfp)
6039f6d2 6244{
e6d6e342
JB		 6245 nl80211_send_mlme_event(rdev, netdev, buf, len,
6246 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6247}
6248
53b46b84 6249void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6250 struct net_device *netdev, const u8 *buf,
6251 size_t len, gfp_t gfp)
6039f6d2
JM		 6252{
6253 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6254 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6255}
6256
53b46b84
JM		 6257void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6258 struct net_device *netdev, const u8 *buf,
e6d6e342 6259 size_t len, gfp_t gfp)
6039f6d2
JM		 6260{
6261 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6262 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6263}
6264
cf4e594e
JM		 6265void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6266 struct net_device *netdev, const u8 *buf,
6267 size_t len, gfp_t gfp)
6268{
6269 nl80211_send_mlme_event(rdev, netdev, buf, len,
6270 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6271}
6272
6273void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6274 struct net_device *netdev, const u8 *buf,
6275 size_t len, gfp_t gfp)
6276{
6277 nl80211_send_mlme_event(rdev, netdev, buf, len,
6278 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6279}
6280
1b06bb40
LR		 6281static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6282 struct net_device *netdev, int cmd,
e6d6e342 6283 const u8 *addr, gfp_t gfp)
1965c853
JM		 6284{
6285 struct sk_buff *msg;
6286 void *hdr;
6287
e6d6e342 6288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6289 if (!msg)
6290 return;
6291
6292 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6293 if (!hdr) {
6294 nlmsg_free(msg);
6295 return;
6296 }
6297
6298 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6299 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6300 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6301 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6302
6303 if (genlmsg_end(msg, hdr) < 0) {
6304 nlmsg_free(msg);
6305 return;
6306 }
6307
463d0183
JB		 6308 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6309 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6310 return;
6311
6312 nla_put_failure:
6313 genlmsg_cancel(msg, hdr);
6314 nlmsg_free(msg);
6315}
6316
6317void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6318 struct net_device *netdev, const u8 *addr,
6319 gfp_t gfp)
1965c853
JM		 6320{
6321 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6322 addr, gfp);
1965c853
JM		 6323}
6324
6325void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6326 struct net_device *netdev, const u8 *addr,
6327 gfp_t gfp)
1965c853 6328{
e6d6e342
JB		 6329 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6330 addr, gfp);
1965c853
JM		 6331}
6332
b23aa676
SO		 6333void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6334 struct net_device *netdev, const u8 *bssid,
6335 const u8 *req_ie, size_t req_ie_len,
6336 const u8 *resp_ie, size_t resp_ie_len,
6337 u16 status, gfp_t gfp)
6338{
6339 struct sk_buff *msg;
6340 void *hdr;
6341
6342 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6343 if (!msg)
6344 return;
6345
6346 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6347 if (!hdr) {
6348 nlmsg_free(msg);
6349 return;
6350 }
6351
6352 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6353 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6354 if (bssid)
6355 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6356 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6357 if (req_ie)
6358 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6359 if (resp_ie)
6360 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6361
6362 if (genlmsg_end(msg, hdr) < 0) {
6363 nlmsg_free(msg);
6364 return;
6365 }
6366
463d0183
JB		 6367 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6368 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6369 return;
6370
6371 nla_put_failure:
6372 genlmsg_cancel(msg, hdr);
6373 nlmsg_free(msg);
6374
6375}
6376
6377void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6378 struct net_device *netdev, const u8 *bssid,
6379 const u8 *req_ie, size_t req_ie_len,
6380 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6381{
6382 struct sk_buff *msg;
6383 void *hdr;
6384
6385 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6386 if (!msg)
6387 return;
6388
6389 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6390 if (!hdr) {
6391 nlmsg_free(msg);
6392 return;
6393 }
6394
6395 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6396 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6397 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6398 if (req_ie)
6399 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6400 if (resp_ie)
6401 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6402
6403 if (genlmsg_end(msg, hdr) < 0) {
6404 nlmsg_free(msg);
6405 return;
6406 }
6407
463d0183
JB		 6408 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6409 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6410 return;
6411
6412 nla_put_failure:
6413 genlmsg_cancel(msg, hdr);
6414 nlmsg_free(msg);
6415
6416}
6417
6418void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6419 struct net_device *netdev, u16 reason,
667503dd 6420 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6421{
6422 struct sk_buff *msg;
6423 void *hdr;
6424
667503dd 6425 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6426 if (!msg)
6427 return;
6428
6429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6430 if (!hdr) {
6431 nlmsg_free(msg);
6432 return;
6433 }
6434
6435 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6436 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6437 if (from_ap && reason)
6438 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6439 if (from_ap)
6440 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6441 if (ie)
6442 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6443
6444 if (genlmsg_end(msg, hdr) < 0) {
6445 nlmsg_free(msg);
6446 return;
6447 }
6448
463d0183
JB		 6449 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6450 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6451 return;
6452
6453 nla_put_failure:
6454 genlmsg_cancel(msg, hdr);
6455 nlmsg_free(msg);
6456
6457}
6458
04a773ad
JB		 6459void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6460 struct net_device *netdev, const u8 *bssid,
6461 gfp_t gfp)
6462{
6463 struct sk_buff *msg;
6464 void *hdr;
6465
fd2120ca 6466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6467 if (!msg)
6468 return;
6469
6470 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6471 if (!hdr) {
6472 nlmsg_free(msg);
6473 return;
6474 }
6475
6476 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6477 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6478 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6479
6480 if (genlmsg_end(msg, hdr) < 0) {
6481 nlmsg_free(msg);
6482 return;
6483 }
6484
463d0183
JB		 6485 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6486 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6487 return;
6488
6489 nla_put_failure:
6490 genlmsg_cancel(msg, hdr);
6491 nlmsg_free(msg);
6492}
6493
c93b5e71
JC		 6494void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6495 struct net_device *netdev,
6496 const u8 *macaddr, const u8* ie, u8 ie_len,
6497 gfp_t gfp)
6498{
6499 struct sk_buff *msg;
6500 void *hdr;
6501
6502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6503 if (!msg)
6504 return;
6505
6506 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6507 if (!hdr) {
6508 nlmsg_free(msg);
6509 return;
6510 }
6511
6512 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6513 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6514 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6515 if (ie_len && ie)
6516 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6517
6518 if (genlmsg_end(msg, hdr) < 0) {
6519 nlmsg_free(msg);
6520 return;
6521 }
6522
6523 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6524 nl80211_mlme_mcgrp.id, gfp);
6525 return;
6526
6527 nla_put_failure:
6528 genlmsg_cancel(msg, hdr);
6529 nlmsg_free(msg);
6530}
6531
a3b8b056
JM		 6532void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6533 struct net_device *netdev, const u8 *addr,
6534 enum nl80211_key_type key_type, int key_id,
e6d6e342 6535 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 6536{
6537 struct sk_buff *msg;
6538 void *hdr;
6539
e6d6e342 6540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 6541 if (!msg)
6542 return;
6543
6544 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6545 if (!hdr) {
6546 nlmsg_free(msg);
6547 return;
6548 }
6549
6550 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6551 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6552 if (addr)
6553 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6554 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6555 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6556 if (tsc)
6557 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6558
6559 if (genlmsg_end(msg, hdr) < 0) {
6560 nlmsg_free(msg);
6561 return;
6562 }
6563
463d0183
JB		 6564 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6565 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 6566 return;
6567
6568 nla_put_failure:
6569 genlmsg_cancel(msg, hdr);
6570 nlmsg_free(msg);
6571}
6572
6bad8766
LR		 6573void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6574 struct ieee80211_channel *channel_before,
6575 struct ieee80211_channel *channel_after)
6576{
6577 struct sk_buff *msg;
6578 void *hdr;
6579 struct nlattr *nl_freq;
6580
fd2120ca 6581 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 6582 if (!msg)
6583 return;
6584
6585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6586 if (!hdr) {
6587 nlmsg_free(msg);
6588 return;
6589 }
6590
6591 /*
6592 * Since we are applying the beacon hint to a wiphy we know its
6593 * wiphy_idx is valid
6594 */
6595 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6596
6597 /* Before */
6598 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6599 if (!nl_freq)
6600 goto nla_put_failure;
6601 if (nl80211_msg_put_channel(msg, channel_before))
6602 goto nla_put_failure;
6603 nla_nest_end(msg, nl_freq);
6604
6605 /* After */
6606 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6607 if (!nl_freq)
6608 goto nla_put_failure;
6609 if (nl80211_msg_put_channel(msg, channel_after))
6610 goto nla_put_failure;
6611 nla_nest_end(msg, nl_freq);
6612
6613 if (genlmsg_end(msg, hdr) < 0) {
6614 nlmsg_free(msg);
6615 return;
6616 }
6617
463d0183
JB		 6618 rcu_read_lock();
6619 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6620 GFP_ATOMIC);
6621 rcu_read_unlock();
6bad8766
LR		 6622
6623 return;
6624
6625nla_put_failure:
6626 genlmsg_cancel(msg, hdr);
6627 nlmsg_free(msg);
6628}
6629
9588bbd5
JM		 6630static void nl80211_send_remain_on_chan_event(
6631 int cmd, struct cfg80211_registered_device *rdev,
6632 struct net_device *netdev, u64 cookie,
6633 struct ieee80211_channel *chan,
6634 enum nl80211_channel_type channel_type,
6635 unsigned int duration, gfp_t gfp)
6636{
6637 struct sk_buff *msg;
6638 void *hdr;
6639
6640 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6641 if (!msg)
6642 return;
6643
6644 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6645 if (!hdr) {
6646 nlmsg_free(msg);
6647 return;
6648 }
6649
6650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6651 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6652 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6653 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6654 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6655
6656 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6657 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6658
6659 if (genlmsg_end(msg, hdr) < 0) {
6660 nlmsg_free(msg);
6661 return;
6662 }
6663
6664 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6665 nl80211_mlme_mcgrp.id, gfp);
6666 return;
6667
6668 nla_put_failure:
6669 genlmsg_cancel(msg, hdr);
6670 nlmsg_free(msg);
6671}
6672
6673void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6674 struct net_device *netdev, u64 cookie,
6675 struct ieee80211_channel *chan,
6676 enum nl80211_channel_type channel_type,
6677 unsigned int duration, gfp_t gfp)
6678{
6679 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6680 rdev, netdev, cookie, chan,
6681 channel_type, duration, gfp);
6682}
6683
6684void nl80211_send_remain_on_channel_cancel(
6685 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6686 u64 cookie, struct ieee80211_channel *chan,
6687 enum nl80211_channel_type channel_type, gfp_t gfp)
6688{
6689 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6690 rdev, netdev, cookie, chan,
6691 channel_type, 0, gfp);
6692}
6693
98b62183
JB		 6694void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6695 struct net_device *dev, const u8 *mac_addr,
6696 struct station_info *sinfo, gfp_t gfp)
6697{
6698 struct sk_buff *msg;
6699
6700 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6701 if (!msg)
6702 return;
6703
6704 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6705 nlmsg_free(msg);
6706 return;
6707 }
6708
6709 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6710 nl80211_mlme_mcgrp.id, gfp);
6711}
6712
ec15e68b
JM		 6713void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6714 struct net_device *dev, const u8 *mac_addr,
6715 gfp_t gfp)
6716{
6717 struct sk_buff *msg;
6718 void *hdr;
6719
6720 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6721 if (!msg)
6722 return;
6723
6724 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6725 if (!hdr) {
6726 nlmsg_free(msg);
6727 return;
6728 }
6729
6730 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6731 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6732
6733 if (genlmsg_end(msg, hdr) < 0) {
6734 nlmsg_free(msg);
6735 return;
6736 }
6737
6738 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6739 nl80211_mlme_mcgrp.id, gfp);
6740 return;
6741
6742 nla_put_failure:
6743 genlmsg_cancel(msg, hdr);
6744 nlmsg_free(msg);
6745}
6746
2e161f78
JB		 6747int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6748 struct net_device *netdev, u32 nlpid,
6749 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6750{
6751 struct sk_buff *msg;
6752 void *hdr;
6753 int err;
6754
6755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6756 if (!msg)
6757 return -ENOMEM;
6758
2e161f78 6759 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6760 if (!hdr) {
6761 nlmsg_free(msg);
6762 return -ENOMEM;
6763 }
6764
6765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6766 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6768 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6769
6770 err = genlmsg_end(msg, hdr);
6771 if (err < 0) {
6772 nlmsg_free(msg);
6773 return err;
6774 }
6775
6776 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6777 if (err < 0)
6778 return err;
6779 return 0;
6780
6781 nla_put_failure:
6782 genlmsg_cancel(msg, hdr);
6783 nlmsg_free(msg);
6784 return -ENOBUFS;
6785}
6786
2e161f78
JB		 6787void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6788 struct net_device *netdev, u64 cookie,
6789 const u8 *buf, size_t len, bool ack,
6790 gfp_t gfp)
026331c4
JM		 6791{
6792 struct sk_buff *msg;
6793 void *hdr;
6794
6795 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6796 if (!msg)
6797 return;
6798
2e161f78 6799 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6800 if (!hdr) {
6801 nlmsg_free(msg);
6802 return;
6803 }
6804
6805 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6806 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6807 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6808 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6809 if (ack)
6810 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6811
6812 if (genlmsg_end(msg, hdr) < 0) {
6813 nlmsg_free(msg);
6814 return;
6815 }
6816
6817 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6818 return;
6819
6820 nla_put_failure:
6821 genlmsg_cancel(msg, hdr);
6822 nlmsg_free(msg);
6823}
6824
d6dc1a38
JO		 6825void
6826nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6827 struct net_device *netdev,
6828 enum nl80211_cqm_rssi_threshold_event rssi_event,
6829 gfp_t gfp)
6830{
6831 struct sk_buff *msg;
6832 struct nlattr *pinfoattr;
6833 void *hdr;
6834
6835 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6836 if (!msg)
6837 return;
6838
6839 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6840 if (!hdr) {
6841 nlmsg_free(msg);
6842 return;
6843 }
6844
6845 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6846 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6847
6848 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6849 if (!pinfoattr)
6850 goto nla_put_failure;
6851
6852 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6853 rssi_event);
6854
6855 nla_nest_end(msg, pinfoattr);
6856
6857 if (genlmsg_end(msg, hdr) < 0) {
6858 nlmsg_free(msg);
6859 return;
6860 }
6861
6862 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6863 nl80211_mlme_mcgrp.id, gfp);
6864 return;
6865
6866 nla_put_failure:
6867 genlmsg_cancel(msg, hdr);
6868 nlmsg_free(msg);
6869}
6870
c063dbf5
JB		 6871void
6872nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6873 struct net_device *netdev, const u8 *peer,
6874 u32 num_packets, gfp_t gfp)
6875{
6876 struct sk_buff *msg;
6877 struct nlattr *pinfoattr;
6878 void *hdr;
6879
6880 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6881 if (!msg)
6882 return;
6883
6884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6885 if (!hdr) {
6886 nlmsg_free(msg);
6887 return;
6888 }
6889
6890 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6891 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6892 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6893
6894 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6895 if (!pinfoattr)
6896 goto nla_put_failure;
6897
6898 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6899
6900 nla_nest_end(msg, pinfoattr);
6901
6902 if (genlmsg_end(msg, hdr) < 0) {
6903 nlmsg_free(msg);
6904 return;
6905 }
6906
6907 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6908 nl80211_mlme_mcgrp.id, gfp);
6909 return;
6910
6911 nla_put_failure:
6912 genlmsg_cancel(msg, hdr);
6913 nlmsg_free(msg);
6914}
6915
026331c4
JM		 6916static int nl80211_netlink_notify(struct notifier_block * nb,
6917 unsigned long state,
6918 void *_notify)
6919{
6920 struct netlink_notify *notify = _notify;
6921 struct cfg80211_registered_device *rdev;
6922 struct wireless_dev *wdev;
6923
6924 if (state != NETLINK_URELEASE)
6925 return NOTIFY_DONE;
6926
6927 rcu_read_lock();
6928
6929 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6930 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 6931 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 6932
6933 rcu_read_unlock();
6934
6935 return NOTIFY_DONE;
6936}
6937
6938static struct notifier_block nl80211_netlink_notifier = {
6939 .notifier_call = nl80211_netlink_notify,
6940};
6941
55682965
JB		 6942/* initialisation/exit functions */
6943
6944int nl80211_init(void)
6945{
0d63cbb5 6946 int err;
55682965 6947
0d63cbb5
MM		 6948 err = genl_register_family_with_ops(&nl80211_fam,
6949 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 6950 if (err)
6951 return err;
6952
55682965
JB		 6953 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6954 if (err)
6955 goto err_out;
6956
2a519311
JB		 6957 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6958 if (err)
6959 goto err_out;
6960
73d54c9e
LR		 6961 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6962 if (err)
6963 goto err_out;
6964
6039f6d2
JM		 6965 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6966 if (err)
6967 goto err_out;
6968
aff89a9b
JB		 6969#ifdef CONFIG_NL80211_TESTMODE
6970 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6971 if (err)
6972 goto err_out;
6973#endif
6974
026331c4
JM		 6975 err = netlink_register_notifier(&nl80211_netlink_notifier);
6976 if (err)
6977 goto err_out;
6978
55682965
JB		 6979 return 0;
6980 err_out:
6981 genl_unregister_family(&nl80211_fam);
6982 return err;
6983}
6984
6985void nl80211_exit(void)
6986{
026331c4 6987 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6988 genl_unregister_family(&nl80211_fam);
6989}
kernel source for telekom puls (alcatel/mediatek)