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iwlagn: fix *_UCODE_API_MAX output in the firmware field
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
50b12f59 124 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 125
24bdd9f4 126 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 127 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 128
36aedc90
JM		 129 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
130 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 131
132 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
133 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
134 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 135 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
136 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 137
138 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_SSID_LEN },
140 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
141 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 142 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 143 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 144 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 145 [NL80211_ATTR_STA_FLAGS2] = {
146 .len = sizeof(struct nl80211_sta_flag_update),
147 },
3f77316c 148 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 149 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
150 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 151 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
152 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
153 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 154 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 155 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 156 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
157 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 158 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
159 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 160 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 161 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
162 .len = IEEE80211_MAX_DATA_LEN },
163 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 164 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 165 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 166 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 167 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 168 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
169 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 170 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 171 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
172 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 173 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 174 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 175 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
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) {
57a27e1d 3409 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3410 err = -EINVAL;
3411 goto out_free;
3412 }
57a27e1d 3413 request->ssids[i].ssid_len = nla_len(attr);
2a519311 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) {
57a27e1d 3575 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3576 err = -EINVAL;
3577 goto out_free;
3578 }
57a27e1d 3579 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3580 memcpy(request->ssids[i].ssid, nla_data(attr),
3581 nla_len(attr));
807f8a8c
LC		 3582 i++;
3583 }
3584 }
3585
3586 if (info->attrs[NL80211_ATTR_IE]) {
3587 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3588 memcpy((void *)request->ie,
3589 nla_data(info->attrs[NL80211_ATTR_IE]),
3590 request->ie_len);
3591 }
3592
3593 request->dev = dev;
3594 request->wiphy = &rdev->wiphy;
bbe6ad6d 3595 request->interval = interval;
807f8a8c
LC		 3596
3597 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3598 if (!err) {
3599 rdev->sched_scan_req = request;
3600 nl80211_send_sched_scan(rdev, dev,
3601 NL80211_CMD_START_SCHED_SCAN);
3602 goto out;
3603 }
3604
3605out_free:
3606 kfree(request);
3607out:
3608 return err;
3609}
3610
3611static int nl80211_stop_sched_scan(struct sk_buff *skb,
3612 struct genl_info *info)
3613{
3614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3615
3616 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3617 !rdev->ops->sched_scan_stop)
3618 return -EOPNOTSUPP;
3619
3620 return __cfg80211_stop_sched_scan(rdev, false);
3621}
3622
2a519311
JB		 3623static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3624 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3625 struct wireless_dev *wdev,
3626 struct cfg80211_internal_bss *intbss)
2a519311 3627{
48ab905d 3628 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3629 void *hdr;
3630 struct nlattr *bss;
48ab905d
JB		 3631 int i;
3632
3633 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3634
3635 hdr = nl80211hdr_put(msg, pid, seq, flags,
3636 NL80211_CMD_NEW_SCAN_RESULTS);
3637 if (!hdr)
3638 return -1;
3639
f5ea9120 3640 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3641 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3642
3643 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3644 if (!bss)
3645 goto nla_put_failure;
3646 if (!is_zero_ether_addr(res->bssid))
3647 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3648 if (res->information_elements && res->len_information_elements)
3649 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3650 res->len_information_elements,
3651 res->information_elements);
34a6eddb
JM		 3652 if (res->beacon_ies && res->len_beacon_ies &&
3653 res->beacon_ies != res->information_elements)
3654 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3655 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3656 if (res->tsf)
3657 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3658 if (res->beacon_interval)
3659 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3660 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3661 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3662 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3663 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3664
77965c97 3665 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3666 case CFG80211_SIGNAL_TYPE_MBM:
3667 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3668 break;
3669 case CFG80211_SIGNAL_TYPE_UNSPEC:
3670 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3671 break;
3672 default:
3673 break;
3674 }
3675
48ab905d 3676 switch (wdev->iftype) {
074ac8df 3677 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3678 case NL80211_IFTYPE_STATION:
3679 if (intbss == wdev->current_bss)
3680 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3681 NL80211_BSS_STATUS_ASSOCIATED);
3682 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3683 if (intbss != wdev->auth_bsses[i])
3684 continue;
3685 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3686 NL80211_BSS_STATUS_AUTHENTICATED);
3687 break;
3688 }
3689 break;
3690 case NL80211_IFTYPE_ADHOC:
3691 if (intbss == wdev->current_bss)
3692 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3693 NL80211_BSS_STATUS_IBSS_JOINED);
3694 break;
3695 default:
3696 break;
3697 }
3698
2a519311
JB		 3699 nla_nest_end(msg, bss);
3700
3701 return genlmsg_end(msg, hdr);
3702
3703 nla_put_failure:
3704 genlmsg_cancel(msg, hdr);
3705 return -EMSGSIZE;
3706}
3707
3708static int nl80211_dump_scan(struct sk_buff *skb,
3709 struct netlink_callback *cb)
3710{
48ab905d
JB		 3711 struct cfg80211_registered_device *rdev;
3712 struct net_device *dev;
2a519311 3713 struct cfg80211_internal_bss *scan;
48ab905d 3714 struct wireless_dev *wdev;
2a519311
JB		 3715 int start = cb->args[1], idx = 0;
3716 int err;
3717
67748893
JB		 3718 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3719 if (err)
3720 return err;
2a519311 3721
48ab905d 3722 wdev = dev->ieee80211_ptr;
2a519311 3723
48ab905d
JB		 3724 wdev_lock(wdev);
3725 spin_lock_bh(&rdev->bss_lock);
3726 cfg80211_bss_expire(rdev);
3727
3728 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3729 if (++idx <= start)
3730 continue;
3731 if (nl80211_send_bss(skb,
3732 NETLINK_CB(cb->skb).pid,
3733 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3734 rdev, wdev, scan) < 0) {
2a519311 3735 idx--;
67748893 3736 break;
2a519311
JB		 3737 }
3738 }
3739
48ab905d
JB		 3740 spin_unlock_bh(&rdev->bss_lock);
3741 wdev_unlock(wdev);
2a519311
JB		 3742
3743 cb->args[1] = idx;
67748893 3744 nl80211_finish_netdev_dump(rdev);
2a519311 3745
67748893 3746 return skb->len;
2a519311
JB		 3747}
3748
61fa713c
HS		 3749static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3750 int flags, struct net_device *dev,
3751 struct survey_info *survey)
3752{
3753 void *hdr;
3754 struct nlattr *infoattr;
3755
3756 /* Survey without a channel doesn't make sense */
3757 if (!survey->channel)
3758 return -EINVAL;
3759
3760 hdr = nl80211hdr_put(msg, pid, seq, flags,
3761 NL80211_CMD_NEW_SURVEY_RESULTS);
3762 if (!hdr)
3763 return -ENOMEM;
3764
3765 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3766
3767 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3768 if (!infoattr)
3769 goto nla_put_failure;
3770
3771 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3772 survey->channel->center_freq);
3773 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3774 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3775 survey->noise);
17e5a808
FF		 3776 if (survey->filled & SURVEY_INFO_IN_USE)
3777 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3778 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3779 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3780 survey->channel_time);
3781 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3782 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3783 survey->channel_time_busy);
3784 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3785 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3786 survey->channel_time_ext_busy);
3787 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3788 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3789 survey->channel_time_rx);
3790 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3791 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3792 survey->channel_time_tx);
61fa713c
HS		 3793
3794 nla_nest_end(msg, infoattr);
3795
3796 return genlmsg_end(msg, hdr);
3797
3798 nla_put_failure:
3799 genlmsg_cancel(msg, hdr);
3800 return -EMSGSIZE;
3801}
3802
3803static int nl80211_dump_survey(struct sk_buff *skb,
3804 struct netlink_callback *cb)
3805{
3806 struct survey_info survey;
3807 struct cfg80211_registered_device *dev;
3808 struct net_device *netdev;
61fa713c
HS		 3809 int survey_idx = cb->args[1];
3810 int res;
3811
67748893
JB		 3812 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3813 if (res)
3814 return res;
61fa713c
HS		 3815
3816 if (!dev->ops->dump_survey) {
3817 res = -EOPNOTSUPP;
3818 goto out_err;
3819 }
3820
3821 while (1) {
3822 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3823 &survey);
3824 if (res == -ENOENT)
3825 break;
3826 if (res)
3827 goto out_err;
3828
3829 if (nl80211_send_survey(skb,
3830 NETLINK_CB(cb->skb).pid,
3831 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3832 netdev,
3833 &survey) < 0)
3834 goto out;
3835 survey_idx++;
3836 }
3837
3838 out:
3839 cb->args[1] = survey_idx;
3840 res = skb->len;
3841 out_err:
67748893 3842 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3843 return res;
3844}
3845
255e737e
JM		 3846static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3847{
b23aa676
SO		 3848 return auth_type <= NL80211_AUTHTYPE_MAX;
3849}
3850
3851static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3852{
3853 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3854 NL80211_WPA_VERSION_2));
3855}
3856
3857static bool nl80211_valid_akm_suite(u32 akm)
3858{
3859 return akm == WLAN_AKM_SUITE_8021X ||
3860 akm == WLAN_AKM_SUITE_PSK;
3861}
3862
3863static bool nl80211_valid_cipher_suite(u32 cipher)
3864{
3865 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3866 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3867 cipher == WLAN_CIPHER_SUITE_TKIP ||
3868 cipher == WLAN_CIPHER_SUITE_CCMP ||
3869 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3870}
3871
b23aa676 3872
636a5d36
JM		 3873static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3874{
4c476991
JB		 3875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3876 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3877 struct ieee80211_channel *chan;
3878 const u8 *bssid, *ssid, *ie = NULL;
3879 int err, ssid_len, ie_len = 0;
3880 enum nl80211_auth_type auth_type;
fffd0934 3881 struct key_parse key;
d5cdfacb 3882 bool local_state_change;
636a5d36 3883
f4a11bb0
JB		 3884 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3885 return -EINVAL;
3886
3887 if (!info->attrs[NL80211_ATTR_MAC])
3888 return -EINVAL;
3889
1778092e
JM		 3890 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3891 return -EINVAL;
3892
19957bb3
JB		 3893 if (!info->attrs[NL80211_ATTR_SSID])
3894 return -EINVAL;
3895
3896 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3897 return -EINVAL;
3898
fffd0934
JB		 3899 err = nl80211_parse_key(info, &key);
3900 if (err)
3901 return err;
3902
3903 if (key.idx >= 0) {
e31b8213
JB		 3904 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3905 return -EINVAL;
fffd0934
JB		 3906 if (!key.p.key || !key.p.key_len)
3907 return -EINVAL;
3908 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3909 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3910 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3911 key.p.key_len != WLAN_KEY_LEN_WEP104))
3912 return -EINVAL;
3913 if (key.idx > 4)
3914 return -EINVAL;
3915 } else {
3916 key.p.key_len = 0;
3917 key.p.key = NULL;
3918 }
3919
afea0b7a
JB		 3920 if (key.idx >= 0) {
3921 int i;
3922 bool ok = false;
3923 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3924 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3925 ok = true;
3926 break;
3927 }
3928 }
4c476991
JB		 3929 if (!ok)
3930 return -EINVAL;
afea0b7a
JB		 3931 }
3932
4c476991
JB		 3933 if (!rdev->ops->auth)
3934 return -EOPNOTSUPP;
636a5d36 3935
074ac8df 3936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3938 return -EOPNOTSUPP;
eec60b03 3939
19957bb3 3940 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3941 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3942 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3943 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3944 return -EINVAL;
636a5d36 3945
19957bb3
JB		 3946 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3947 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3948
3949 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3950 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3951 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3952 }
3953
19957bb3 3954 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3955 if (!nl80211_valid_auth_type(auth_type))
3956 return -EINVAL;
636a5d36 3957
d5cdfacb
JM		 3958 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3959
4c476991
JB		 3960 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3961 ssid, ssid_len, ie, ie_len,
3962 key.p.key, key.p.key_len, key.idx,
3963 local_state_change);
636a5d36
JM		 3964}
3965
c0692b8f
JB		 3966static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3967 struct genl_info *info,
3dc27d25
JB		 3968 struct cfg80211_crypto_settings *settings,
3969 int cipher_limit)
b23aa676 3970{
c0b2bbd8
JB		 3971 memset(settings, 0, sizeof(*settings));
3972
b23aa676
SO		 3973 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3974
c0692b8f
JB		 3975 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3976 u16 proto;
3977 proto = nla_get_u16(
3978 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3979 settings->control_port_ethertype = cpu_to_be16(proto);
3980 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3981 proto != ETH_P_PAE)
3982 return -EINVAL;
3983 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3984 settings->control_port_no_encrypt = true;
3985 } else
3986 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3987
b23aa676
SO		 3988 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3989 void *data;
3990 int len, i;
3991
3992 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3993 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3994 settings->n_ciphers_pairwise = len / sizeof(u32);
3995
3996 if (len % sizeof(u32))
3997 return -EINVAL;
3998
3dc27d25 3999 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4000 return -EINVAL;
4001
4002 memcpy(settings->ciphers_pairwise, data, len);
4003
4004 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4005 if (!nl80211_valid_cipher_suite(
4006 settings->ciphers_pairwise[i]))
4007 return -EINVAL;
4008 }
4009
4010 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4011 settings->cipher_group =
4012 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4013 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4014 return -EINVAL;
4015 }
4016
4017 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4018 settings->wpa_versions =
4019 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4020 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4021 return -EINVAL;
4022 }
4023
4024 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4025 void *data;
4026 int len, i;
4027
4028 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4029 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4030 settings->n_akm_suites = len / sizeof(u32);
4031
4032 if (len % sizeof(u32))
4033 return -EINVAL;
4034
4035 memcpy(settings->akm_suites, data, len);
4036
4037 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4038 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4039 return -EINVAL;
4040 }
4041
4042 return 0;
4043}
4044
636a5d36
JM		 4045static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4046{
4c476991
JB		 4047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4048 struct net_device *dev = info->user_ptr[1];
19957bb3 4049 struct cfg80211_crypto_settings crypto;
f444de05 4050 struct ieee80211_channel *chan;
3e5d7649 4051 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4052 int err, ssid_len, ie_len = 0;
4053 bool use_mfp = false;
636a5d36 4054
f4a11bb0
JB		 4055 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4056 return -EINVAL;
4057
4058 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4059 !info->attrs[NL80211_ATTR_SSID] ||
4060 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4061 return -EINVAL;
4062
4c476991
JB		 4063 if (!rdev->ops->assoc)
4064 return -EOPNOTSUPP;
636a5d36 4065
074ac8df 4066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4068 return -EOPNOTSUPP;
eec60b03 4069
19957bb3 4070 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4071
19957bb3
JB		 4072 chan = ieee80211_get_channel(&rdev->wiphy,
4073 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4074 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4075 return -EINVAL;
636a5d36 4076
19957bb3
JB		 4077 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4078 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4079
4080 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4081 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4082 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4083 }
4084
dc6382ce 4085 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4086 enum nl80211_mfp mfp =
dc6382ce 4087 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4088 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4089 use_mfp = true;
4c476991
JB		 4090 else if (mfp != NL80211_MFP_NO)
4091 return -EINVAL;
dc6382ce
JM		 4092 }
4093
3e5d7649
JB		 4094 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4095 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4096
c0692b8f 4097 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4098 if (!err)
3e5d7649
JB		 4099 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4100 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4101 &crypto);
636a5d36 4102
636a5d36
JM		 4103 return err;
4104}
4105
4106static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4107{
4c476991
JB		 4108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4109 struct net_device *dev = info->user_ptr[1];
19957bb3 4110 const u8 *ie = NULL, *bssid;
4c476991 4111 int ie_len = 0;
19957bb3 4112 u16 reason_code;
d5cdfacb 4113 bool local_state_change;
636a5d36 4114
f4a11bb0
JB		 4115 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4116 return -EINVAL;
4117
4118 if (!info->attrs[NL80211_ATTR_MAC])
4119 return -EINVAL;
4120
4121 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4122 return -EINVAL;
4123
4c476991
JB		 4124 if (!rdev->ops->deauth)
4125 return -EOPNOTSUPP;
636a5d36 4126
074ac8df 4127 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4128 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4129 return -EOPNOTSUPP;
eec60b03 4130
19957bb3 4131 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4132
19957bb3
JB		 4133 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4134 if (reason_code == 0) {
f4a11bb0 4135 /* Reason Code 0 is reserved */
4c476991 4136 return -EINVAL;
255e737e 4137 }
636a5d36
JM		 4138
4139 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4140 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4141 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4142 }
4143
d5cdfacb
JM		 4144 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4145
4c476991
JB		 4146 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4147 local_state_change);
636a5d36
JM		 4148}
4149
4150static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4151{
4c476991
JB		 4152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4153 struct net_device *dev = info->user_ptr[1];
19957bb3 4154 const u8 *ie = NULL, *bssid;
4c476991 4155 int ie_len = 0;
19957bb3 4156 u16 reason_code;
d5cdfacb 4157 bool local_state_change;
636a5d36 4158
f4a11bb0
JB		 4159 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4160 return -EINVAL;
4161
4162 if (!info->attrs[NL80211_ATTR_MAC])
4163 return -EINVAL;
4164
4165 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4166 return -EINVAL;
4167
4c476991
JB		 4168 if (!rdev->ops->disassoc)
4169 return -EOPNOTSUPP;
636a5d36 4170
074ac8df 4171 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4172 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4173 return -EOPNOTSUPP;
eec60b03 4174
19957bb3 4175 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4176
19957bb3
JB		 4177 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4178 if (reason_code == 0) {
f4a11bb0 4179 /* Reason Code 0 is reserved */
4c476991 4180 return -EINVAL;
255e737e 4181 }
636a5d36
JM		 4182
4183 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4184 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4185 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4186 }
4187
d5cdfacb
JM		 4188 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4189
4c476991
JB		 4190 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4191 local_state_change);
636a5d36
JM		 4192}
4193
dd5b4cc7
FF		 4194static bool
4195nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4196 int mcast_rate[IEEE80211_NUM_BANDS],
4197 int rateval)
4198{
4199 struct wiphy *wiphy = &rdev->wiphy;
4200 bool found = false;
4201 int band, i;
4202
4203 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4204 struct ieee80211_supported_band *sband;
4205
4206 sband = wiphy->bands[band];
4207 if (!sband)
4208 continue;
4209
4210 for (i = 0; i < sband->n_bitrates; i++) {
4211 if (sband->bitrates[i].bitrate == rateval) {
4212 mcast_rate[band] = i + 1;
4213 found = true;
4214 break;
4215 }
4216 }
4217 }
4218
4219 return found;
4220}
4221
04a773ad
JB		 4222static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4223{
4c476991
JB		 4224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4225 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4226 struct cfg80211_ibss_params ibss;
4227 struct wiphy *wiphy;
fffd0934 4228 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4229 int err;
4230
8e30bc55
JB		 4231 memset(&ibss, 0, sizeof(ibss));
4232
04a773ad
JB		 4233 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4234 return -EINVAL;
4235
4236 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4237 !info->attrs[NL80211_ATTR_SSID] ||
4238 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4239 return -EINVAL;
4240
8e30bc55
JB		 4241 ibss.beacon_interval = 100;
4242
4243 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4244 ibss.beacon_interval =
4245 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4246 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4247 return -EINVAL;
4248 }
4249
4c476991
JB		 4250 if (!rdev->ops->join_ibss)
4251 return -EOPNOTSUPP;
04a773ad 4252
4c476991
JB		 4253 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4254 return -EOPNOTSUPP;
04a773ad 4255
79c97e97 4256 wiphy = &rdev->wiphy;
04a773ad
JB		 4257
4258 if (info->attrs[NL80211_ATTR_MAC])
4259 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4260 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4261 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4262
4263 if (info->attrs[NL80211_ATTR_IE]) {
4264 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4265 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4266 }
4267
4268 ibss.channel = ieee80211_get_channel(wiphy,
4269 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4270 if (!ibss.channel ||
4271 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4272 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4273 return -EINVAL;
04a773ad
JB		 4274
4275 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4276 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4277
fbd2c8dc
TP		 4278 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4279 u8 *rates =
4280 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4281 int n_rates =
4282 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4283 struct ieee80211_supported_band *sband =
4284 wiphy->bands[ibss.channel->band];
4285 int i, j;
4286
4c476991
JB		 4287 if (n_rates == 0)
4288 return -EINVAL;
fbd2c8dc
TP		 4289
4290 for (i = 0; i < n_rates; i++) {
4291 int rate = (rates[i] & 0x7f) * 5;
4292 bool found = false;
4293
4294 for (j = 0; j < sband->n_bitrates; j++) {
4295 if (sband->bitrates[j].bitrate == rate) {
4296 found = true;
4297 ibss.basic_rates |= BIT(j);
4298 break;
4299 }
4300 }
4c476991
JB		 4301 if (!found)
4302 return -EINVAL;
fbd2c8dc 4303 }
fbd2c8dc 4304 }
dd5b4cc7
FF		 4305
4306 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4307 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4308 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4309 return -EINVAL;
fbd2c8dc 4310
4c476991
JB		 4311 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4312 connkeys = nl80211_parse_connkeys(rdev,
4313 info->attrs[NL80211_ATTR_KEYS]);
4314 if (IS_ERR(connkeys))
4315 return PTR_ERR(connkeys);
4316 }
04a773ad 4317
4c476991 4318 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4319 if (err)
4320 kfree(connkeys);
04a773ad
JB		 4321 return err;
4322}
4323
4324static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4325{
4c476991
JB		 4326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4327 struct net_device *dev = info->user_ptr[1];
04a773ad 4328
4c476991
JB		 4329 if (!rdev->ops->leave_ibss)
4330 return -EOPNOTSUPP;
04a773ad 4331
4c476991
JB		 4332 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4333 return -EOPNOTSUPP;
04a773ad 4334
4c476991 4335 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4336}
4337
aff89a9b
JB		 4338#ifdef CONFIG_NL80211_TESTMODE
4339static struct genl_multicast_group nl80211_testmode_mcgrp = {
4340 .name = "testmode",
4341};
4342
4343static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4344{
4c476991 4345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4346 int err;
4347
4348 if (!info->attrs[NL80211_ATTR_TESTDATA])
4349 return -EINVAL;
4350
aff89a9b
JB		 4351 err = -EOPNOTSUPP;
4352 if (rdev->ops->testmode_cmd) {
4353 rdev->testmode_info = info;
4354 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4355 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4356 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4357 rdev->testmode_info = NULL;
4358 }
4359
aff89a9b
JB		 4360 return err;
4361}
4362
4363static struct sk_buff *
4364__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4365 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4366{
4367 struct sk_buff *skb;
4368 void *hdr;
4369 struct nlattr *data;
4370
4371 skb = nlmsg_new(approxlen + 100, gfp);
4372 if (!skb)
4373 return NULL;
4374
4375 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4376 if (!hdr) {
4377 kfree_skb(skb);
4378 return NULL;
4379 }
4380
4381 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4382 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4383
4384 ((void **)skb->cb)[0] = rdev;
4385 ((void **)skb->cb)[1] = hdr;
4386 ((void **)skb->cb)[2] = data;
4387
4388 return skb;
4389
4390 nla_put_failure:
4391 kfree_skb(skb);
4392 return NULL;
4393}
4394
4395struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4396 int approxlen)
4397{
4398 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4399
4400 if (WARN_ON(!rdev->testmode_info))
4401 return NULL;
4402
4403 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4404 rdev->testmode_info->snd_pid,
4405 rdev->testmode_info->snd_seq,
4406 GFP_KERNEL);
4407}
4408EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4409
4410int cfg80211_testmode_reply(struct sk_buff *skb)
4411{
4412 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4413 void *hdr = ((void **)skb->cb)[1];
4414 struct nlattr *data = ((void **)skb->cb)[2];
4415
4416 if (WARN_ON(!rdev->testmode_info)) {
4417 kfree_skb(skb);
4418 return -EINVAL;
4419 }
4420
4421 nla_nest_end(skb, data);
4422 genlmsg_end(skb, hdr);
4423 return genlmsg_reply(skb, rdev->testmode_info);
4424}
4425EXPORT_SYMBOL(cfg80211_testmode_reply);
4426
4427struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4428 int approxlen, gfp_t gfp)
4429{
4430 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4431
4432 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4433}
4434EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4435
4436void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4437{
4438 void *hdr = ((void **)skb->cb)[1];
4439 struct nlattr *data = ((void **)skb->cb)[2];
4440
4441 nla_nest_end(skb, data);
4442 genlmsg_end(skb, hdr);
4443 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4444}
4445EXPORT_SYMBOL(cfg80211_testmode_event);
4446#endif
4447
b23aa676
SO		 4448static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4449{
4c476991
JB		 4450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4451 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4452 struct cfg80211_connect_params connect;
4453 struct wiphy *wiphy;
fffd0934 4454 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4455 int err;
4456
4457 memset(&connect, 0, sizeof(connect));
4458
4459 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4460 return -EINVAL;
4461
4462 if (!info->attrs[NL80211_ATTR_SSID] ||
4463 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4464 return -EINVAL;
4465
4466 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4467 connect.auth_type =
4468 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4469 if (!nl80211_valid_auth_type(connect.auth_type))
4470 return -EINVAL;
4471 } else
4472 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4473
4474 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4475
c0692b8f 4476 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4477 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4478 if (err)
4479 return err;
b23aa676 4480
074ac8df 4481 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4482 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4483 return -EOPNOTSUPP;
b23aa676 4484
79c97e97 4485 wiphy = &rdev->wiphy;
b23aa676 4486
b23aa676
SO		 4487 if (info->attrs[NL80211_ATTR_MAC])
4488 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4489 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4490 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4491
4492 if (info->attrs[NL80211_ATTR_IE]) {
4493 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4494 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4495 }
4496
4497 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4498 connect.channel =
4499 ieee80211_get_channel(wiphy,
4500 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4501 if (!connect.channel ||
4c476991
JB		 4502 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4503 return -EINVAL;
b23aa676
SO		 4504 }
4505
fffd0934
JB		 4506 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4507 connkeys = nl80211_parse_connkeys(rdev,
4508 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4509 if (IS_ERR(connkeys))
4510 return PTR_ERR(connkeys);
fffd0934
JB		 4511 }
4512
4513 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4514 if (err)
4515 kfree(connkeys);
b23aa676
SO		 4516 return err;
4517}
4518
4519static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4520{
4c476991
JB		 4521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4522 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4523 u16 reason;
4524
4525 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4526 reason = WLAN_REASON_DEAUTH_LEAVING;
4527 else
4528 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4529
4530 if (reason == 0)
4531 return -EINVAL;
4532
074ac8df 4533 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4534 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4535 return -EOPNOTSUPP;
b23aa676 4536
4c476991 4537 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4538}
4539
463d0183
JB		 4540static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4541{
4c476991 4542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4543 struct net *net;
4544 int err;
4545 u32 pid;
4546
4547 if (!info->attrs[NL80211_ATTR_PID])
4548 return -EINVAL;
4549
4550 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4551
463d0183 4552 net = get_net_ns_by_pid(pid);
4c476991
JB		 4553 if (IS_ERR(net))
4554 return PTR_ERR(net);
463d0183
JB		 4555
4556 err = 0;
4557
4558 /* check if anything to do */
4c476991
JB		 4559 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4560 err = cfg80211_switch_netns(rdev, net);
463d0183 4561
463d0183 4562 put_net(net);
463d0183
JB		 4563 return err;
4564}
4565
67fbb16b
SO		 4566static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4567{
4c476991 4568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4569 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4570 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4571 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4572 struct cfg80211_pmksa pmksa;
4573
4574 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4575
4576 if (!info->attrs[NL80211_ATTR_MAC])
4577 return -EINVAL;
4578
4579 if (!info->attrs[NL80211_ATTR_PMKID])
4580 return -EINVAL;
4581
67fbb16b
SO		 4582 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4583 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4584
074ac8df 4585 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4586 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4587 return -EOPNOTSUPP;
67fbb16b
SO		 4588
4589 switch (info->genlhdr->cmd) {
4590 case NL80211_CMD_SET_PMKSA:
4591 rdev_ops = rdev->ops->set_pmksa;
4592 break;
4593 case NL80211_CMD_DEL_PMKSA:
4594 rdev_ops = rdev->ops->del_pmksa;
4595 break;
4596 default:
4597 WARN_ON(1);
4598 break;
4599 }
4600
4c476991
JB		 4601 if (!rdev_ops)
4602 return -EOPNOTSUPP;
67fbb16b 4603
4c476991 4604 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4605}
4606
4607static int nl80211_flush_pmksa(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];
67fbb16b 4611
074ac8df 4612 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4613 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4614 return -EOPNOTSUPP;
67fbb16b 4615
4c476991
JB		 4616 if (!rdev->ops->flush_pmksa)
4617 return -EOPNOTSUPP;
67fbb16b 4618
4c476991 4619 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4620}
4621
9588bbd5
JM		 4622static int nl80211_remain_on_channel(struct sk_buff *skb,
4623 struct genl_info *info)
4624{
4c476991
JB		 4625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4626 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4627 struct ieee80211_channel *chan;
4628 struct sk_buff *msg;
4629 void *hdr;
4630 u64 cookie;
4631 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4632 u32 freq, duration;
4633 int err;
4634
4635 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4636 !info->attrs[NL80211_ATTR_DURATION])
4637 return -EINVAL;
4638
4639 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4640
4641 /*
4642 * We should be on that channel for at least one jiffie,
4643 * and more than 5 seconds seems excessive.
4644 */
a293911d
JB		 4645 if (!duration || !msecs_to_jiffies(duration) ||
4646 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4647 return -EINVAL;
4648
4c476991
JB		 4649 if (!rdev->ops->remain_on_channel)
4650 return -EOPNOTSUPP;
9588bbd5 4651
9588bbd5
JM		 4652 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4653 channel_type = nla_get_u32(
4654 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4655 if (channel_type != NL80211_CHAN_NO_HT &&
4656 channel_type != NL80211_CHAN_HT20 &&
4657 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4658 channel_type != NL80211_CHAN_HT40MINUS)
4659 return -EINVAL;
9588bbd5
JM		 4660 }
4661
4662 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4663 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4664 if (chan == NULL)
4665 return -EINVAL;
9588bbd5
JM		 4666
4667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4668 if (!msg)
4669 return -ENOMEM;
9588bbd5
JM		 4670
4671 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4672 NL80211_CMD_REMAIN_ON_CHANNEL);
4673
4674 if (IS_ERR(hdr)) {
4675 err = PTR_ERR(hdr);
4676 goto free_msg;
4677 }
4678
4679 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4680 channel_type, duration, &cookie);
4681
4682 if (err)
4683 goto free_msg;
4684
4685 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4686
4687 genlmsg_end(msg, hdr);
4c476991
JB		 4688
4689 return genlmsg_reply(msg, info);
9588bbd5
JM		 4690
4691 nla_put_failure:
4692 err = -ENOBUFS;
4693 free_msg:
4694 nlmsg_free(msg);
9588bbd5
JM		 4695 return err;
4696}
4697
4698static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4699 struct genl_info *info)
4700{
4c476991
JB		 4701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4702 struct net_device *dev = info->user_ptr[1];
9588bbd5 4703 u64 cookie;
9588bbd5
JM		 4704
4705 if (!info->attrs[NL80211_ATTR_COOKIE])
4706 return -EINVAL;
4707
4c476991
JB		 4708 if (!rdev->ops->cancel_remain_on_channel)
4709 return -EOPNOTSUPP;
9588bbd5 4710
9588bbd5
JM		 4711 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4712
4c476991 4713 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4714}
4715
13ae75b1
JM		 4716static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4717 u8 *rates, u8 rates_len)
4718{
4719 u8 i;
4720 u32 mask = 0;
4721
4722 for (i = 0; i < rates_len; i++) {
4723 int rate = (rates[i] & 0x7f) * 5;
4724 int ridx;
4725 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4726 struct ieee80211_rate *srate =
4727 &sband->bitrates[ridx];
4728 if (rate == srate->bitrate) {
4729 mask |= 1 << ridx;
4730 break;
4731 }
4732 }
4733 if (ridx == sband->n_bitrates)
4734 return 0; /* rate not found */
4735 }
4736
4737 return mask;
4738}
4739
b54452b0 4740static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4741 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4742 .len = NL80211_MAX_SUPP_RATES },
4743};
4744
4745static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4746 struct genl_info *info)
4747{
4748 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4750 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4751 int rem, i;
4752 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4753 struct nlattr *tx_rates;
4754 struct ieee80211_supported_band *sband;
4755
4756 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4757 return -EINVAL;
4758
4c476991
JB		 4759 if (!rdev->ops->set_bitrate_mask)
4760 return -EOPNOTSUPP;
13ae75b1
JM		 4761
4762 memset(&mask, 0, sizeof(mask));
4763 /* Default to all rates enabled */
4764 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4765 sband = rdev->wiphy.bands[i];
4766 mask.control[i].legacy =
4767 sband ? (1 << sband->n_bitrates) - 1 : 0;
4768 }
4769
4770 /*
4771 * The nested attribute uses enum nl80211_band as the index. This maps
4772 * directly to the enum ieee80211_band values used in cfg80211.
4773 */
4774 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4775 {
4776 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4777 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4778 return -EINVAL;
13ae75b1 4779 sband = rdev->wiphy.bands[band];
4c476991
JB		 4780 if (sband == NULL)
4781 return -EINVAL;
13ae75b1
JM		 4782 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4783 nla_len(tx_rates), nl80211_txattr_policy);
4784 if (tb[NL80211_TXRATE_LEGACY]) {
4785 mask.control[band].legacy = rateset_to_mask(
4786 sband,
4787 nla_data(tb[NL80211_TXRATE_LEGACY]),
4788 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4789 if (mask.control[band].legacy == 0)
4790 return -EINVAL;
13ae75b1
JM		 4791 }
4792 }
4793
4c476991 4794 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4795}
4796
2e161f78 4797static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4798{
4c476991
JB		 4799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4800 struct net_device *dev = info->user_ptr[1];
2e161f78 4801 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4802
4803 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4804 return -EINVAL;
4805
2e161f78
JB		 4806 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4807 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4808
9d38d85d 4809 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4810 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4811 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4812 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4813 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4814 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4815 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4816 return -EOPNOTSUPP;
026331c4
JM		 4817
4818 /* not much point in registering if we can't reply */
4c476991
JB		 4819 if (!rdev->ops->mgmt_tx)
4820 return -EOPNOTSUPP;
026331c4 4821
4c476991 4822 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4823 frame_type,
026331c4
JM		 4824 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4825 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4826}
4827
2e161f78 4828static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4829{
4c476991
JB		 4830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4831 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4832 struct ieee80211_channel *chan;
4833 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4834 bool channel_type_valid = false;
026331c4
JM		 4835 u32 freq;
4836 int err;
4837 void *hdr;
4838 u64 cookie;
4839 struct sk_buff *msg;
f7ca38df
JB		 4840 unsigned int wait = 0;
4841 bool offchan;
026331c4
JM		 4842
4843 if (!info->attrs[NL80211_ATTR_FRAME] ||
4844 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4845 return -EINVAL;
4846
4c476991
JB		 4847 if (!rdev->ops->mgmt_tx)
4848 return -EOPNOTSUPP;
026331c4 4849
9d38d85d 4850 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4851 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4852 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4853 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4854 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4855 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4856 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4857 return -EOPNOTSUPP;
026331c4 4858
f7ca38df
JB		 4859 if (info->attrs[NL80211_ATTR_DURATION]) {
4860 if (!rdev->ops->mgmt_tx_cancel_wait)
4861 return -EINVAL;
4862 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4863 }
4864
026331c4
JM		 4865 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4866 channel_type = nla_get_u32(
4867 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4868 if (channel_type != NL80211_CHAN_NO_HT &&
4869 channel_type != NL80211_CHAN_HT20 &&
4870 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4871 channel_type != NL80211_CHAN_HT40MINUS)
4872 return -EINVAL;
252aa631 4873 channel_type_valid = true;
026331c4
JM		 4874 }
4875
f7ca38df
JB		 4876 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
4877
026331c4
JM		 4878 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4879 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4880 if (chan == NULL)
4881 return -EINVAL;
026331c4
JM		 4882
4883 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4884 if (!msg)
4885 return -ENOMEM;
026331c4
JM		 4886
4887 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4888 NL80211_CMD_FRAME);
026331c4
JM		 4889
4890 if (IS_ERR(hdr)) {
4891 err = PTR_ERR(hdr);
4892 goto free_msg;
4893 }
f7ca38df
JB		 4894 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
4895 channel_type_valid, wait,
2e161f78
JB		 4896 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4897 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4898 &cookie);
026331c4
JM		 4899 if (err)
4900 goto free_msg;
4901
4902 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4903
4904 genlmsg_end(msg, hdr);
4c476991 4905 return genlmsg_reply(msg, info);
026331c4
JM		 4906
4907 nla_put_failure:
4908 err = -ENOBUFS;
4909 free_msg:
4910 nlmsg_free(msg);
026331c4
JM		 4911 return err;
4912}
4913
f7ca38df
JB		 4914static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
4915{
4916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4917 struct net_device *dev = info->user_ptr[1];
4918 u64 cookie;
4919
4920 if (!info->attrs[NL80211_ATTR_COOKIE])
4921 return -EINVAL;
4922
4923 if (!rdev->ops->mgmt_tx_cancel_wait)
4924 return -EOPNOTSUPP;
4925
4926 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
4928 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4929 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4932 return -EOPNOTSUPP;
4933
4934 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4935
4936 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
4937}
4938
ffb9eb3d
KV		 4939static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4940{
4c476991 4941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4942 struct wireless_dev *wdev;
4c476991 4943 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4944 u8 ps_state;
4945 bool state;
4946 int err;
4947
4c476991
JB		 4948 if (!info->attrs[NL80211_ATTR_PS_STATE])
4949 return -EINVAL;
ffb9eb3d
KV		 4950
4951 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4952
4c476991
JB		 4953 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4954 return -EINVAL;
ffb9eb3d
KV		 4955
4956 wdev = dev->ieee80211_ptr;
4957
4c476991
JB		 4958 if (!rdev->ops->set_power_mgmt)
4959 return -EOPNOTSUPP;
ffb9eb3d
KV		 4960
4961 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4962
4963 if (state == wdev->ps)
4c476991 4964 return 0;
ffb9eb3d 4965
4c476991
JB		 4966 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4967 wdev->ps_timeout);
4968 if (!err)
4969 wdev->ps = state;
ffb9eb3d
KV		 4970 return err;
4971}
4972
4973static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4974{
4c476991 4975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4976 enum nl80211_ps_state ps_state;
4977 struct wireless_dev *wdev;
4c476991 4978 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4979 struct sk_buff *msg;
4980 void *hdr;
4981 int err;
4982
ffb9eb3d
KV		 4983 wdev = dev->ieee80211_ptr;
4984
4c476991
JB		 4985 if (!rdev->ops->set_power_mgmt)
4986 return -EOPNOTSUPP;
ffb9eb3d
KV		 4987
4988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4989 if (!msg)
4990 return -ENOMEM;
ffb9eb3d
KV		 4991
4992 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4993 NL80211_CMD_GET_POWER_SAVE);
4994 if (!hdr) {
4c476991 4995 err = -ENOBUFS;
ffb9eb3d
KV		 4996 goto free_msg;
4997 }
4998
4999 if (wdev->ps)
5000 ps_state = NL80211_PS_ENABLED;
5001 else
5002 ps_state = NL80211_PS_DISABLED;
5003
5004 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5005
5006 genlmsg_end(msg, hdr);
4c476991 5007 return genlmsg_reply(msg, info);
ffb9eb3d 5008
4c476991 5009 nla_put_failure:
ffb9eb3d 5010 err = -ENOBUFS;
4c476991 5011 free_msg:
ffb9eb3d 5012 nlmsg_free(msg);
ffb9eb3d
KV		 5013 return err;
5014}
5015
d6dc1a38
JO		 5016static struct nla_policy
5017nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5018 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5019 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5020 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5021};
5022
5023static int nl80211_set_cqm_rssi(struct genl_info *info,
5024 s32 threshold, u32 hysteresis)
5025{
4c476991 5026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5027 struct wireless_dev *wdev;
4c476991 5028 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5029
5030 if (threshold > 0)
5031 return -EINVAL;
5032
d6dc1a38
JO		 5033 wdev = dev->ieee80211_ptr;
5034
4c476991
JB		 5035 if (!rdev->ops->set_cqm_rssi_config)
5036 return -EOPNOTSUPP;
d6dc1a38 5037
074ac8df 5038 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5039 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5040 return -EOPNOTSUPP;
d6dc1a38 5041
4c476991
JB		 5042 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5043 threshold, hysteresis);
d6dc1a38
JO		 5044}
5045
5046static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5047{
5048 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5049 struct nlattr *cqm;
5050 int err;
5051
5052 cqm = info->attrs[NL80211_ATTR_CQM];
5053 if (!cqm) {
5054 err = -EINVAL;
5055 goto out;
5056 }
5057
5058 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5059 nl80211_attr_cqm_policy);
5060 if (err)
5061 goto out;
5062
5063 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5064 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5065 s32 threshold;
5066 u32 hysteresis;
5067 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5068 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5069 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5070 } else
5071 err = -EINVAL;
5072
5073out:
5074 return err;
5075}
5076
29cbe68c
JB		 5077static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5078{
5079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5080 struct net_device *dev = info->user_ptr[1];
5081 struct mesh_config cfg;
c80d545d 5082 struct mesh_setup setup;
29cbe68c
JB		 5083 int err;
5084
5085 /* start with default */
5086 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5087 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5088
24bdd9f4 5089 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5090 /* and parse parameters if given */
24bdd9f4 5091 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5092 if (err)
5093 return err;
5094 }
5095
5096 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5097 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5098 return -EINVAL;
5099
c80d545d
JC		 5100 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5101 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5102
5103 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5104 /* parse additional setup parameters if given */
5105 err = nl80211_parse_mesh_setup(info, &setup);
5106 if (err)
5107 return err;
5108 }
5109
5110 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5111}
5112
5113static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5114{
5115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5116 struct net_device *dev = info->user_ptr[1];
5117
5118 return cfg80211_leave_mesh(rdev, dev);
5119}
5120
ff1b6e69
JB		 5121static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5122{
5123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5124 struct sk_buff *msg;
5125 void *hdr;
5126
5127 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5128 return -EOPNOTSUPP;
5129
5130 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5131 if (!msg)
5132 return -ENOMEM;
5133
5134 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5135 NL80211_CMD_GET_WOWLAN);
5136 if (!hdr)
5137 goto nla_put_failure;
5138
5139 if (rdev->wowlan) {
5140 struct nlattr *nl_wowlan;
5141
5142 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5143 if (!nl_wowlan)
5144 goto nla_put_failure;
5145
5146 if (rdev->wowlan->any)
5147 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5148 if (rdev->wowlan->disconnect)
5149 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5150 if (rdev->wowlan->magic_pkt)
5151 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
5152 if (rdev->wowlan->n_patterns) {
5153 struct nlattr *nl_pats, *nl_pat;
5154 int i, pat_len;
5155
5156 nl_pats = nla_nest_start(msg,
5157 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5158 if (!nl_pats)
5159 goto nla_put_failure;
5160
5161 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5162 nl_pat = nla_nest_start(msg, i + 1);
5163 if (!nl_pat)
5164 goto nla_put_failure;
5165 pat_len = rdev->wowlan->patterns[i].pattern_len;
5166 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5167 DIV_ROUND_UP(pat_len, 8),
5168 rdev->wowlan->patterns[i].mask);
5169 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5170 pat_len,
5171 rdev->wowlan->patterns[i].pattern);
5172 nla_nest_end(msg, nl_pat);
5173 }
5174 nla_nest_end(msg, nl_pats);
5175 }
5176
5177 nla_nest_end(msg, nl_wowlan);
5178 }
5179
5180 genlmsg_end(msg, hdr);
5181 return genlmsg_reply(msg, info);
5182
5183nla_put_failure:
5184 nlmsg_free(msg);
5185 return -ENOBUFS;
5186}
5187
5188static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5189{
5190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5191 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5192 struct cfg80211_wowlan no_triggers = {};
5193 struct cfg80211_wowlan new_triggers = {};
5194 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5195 int err, i;
5196
5197 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5198 return -EOPNOTSUPP;
5199
5200 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5201 goto no_triggers;
5202
5203 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5204 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5205 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5206 nl80211_wowlan_policy);
5207 if (err)
5208 return err;
5209
5210 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5211 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5212 return -EINVAL;
5213 new_triggers.any = true;
5214 }
5215
5216 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5217 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5218 return -EINVAL;
5219 new_triggers.disconnect = true;
5220 }
5221
5222 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5223 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5224 return -EINVAL;
5225 new_triggers.magic_pkt = true;
5226 }
5227
5228 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5229 struct nlattr *pat;
5230 int n_patterns = 0;
5231 int rem, pat_len, mask_len;
5232 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5233
5234 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5235 rem)
5236 n_patterns++;
5237 if (n_patterns > wowlan->n_patterns)
5238 return -EINVAL;
5239
5240 new_triggers.patterns = kcalloc(n_patterns,
5241 sizeof(new_triggers.patterns[0]),
5242 GFP_KERNEL);
5243 if (!new_triggers.patterns)
5244 return -ENOMEM;
5245
5246 new_triggers.n_patterns = n_patterns;
5247 i = 0;
5248
5249 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5250 rem) {
5251 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5252 nla_data(pat), nla_len(pat), NULL);
5253 err = -EINVAL;
5254 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5255 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5256 goto error;
5257 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5258 mask_len = DIV_ROUND_UP(pat_len, 8);
5259 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5260 mask_len)
5261 goto error;
5262 if (pat_len > wowlan->pattern_max_len ||
5263 pat_len < wowlan->pattern_min_len)
5264 goto error;
5265
5266 new_triggers.patterns[i].mask =
5267 kmalloc(mask_len + pat_len, GFP_KERNEL);
5268 if (!new_triggers.patterns[i].mask) {
5269 err = -ENOMEM;
5270 goto error;
5271 }
5272 new_triggers.patterns[i].pattern =
5273 new_triggers.patterns[i].mask + mask_len;
5274 memcpy(new_triggers.patterns[i].mask,
5275 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5276 mask_len);
5277 new_triggers.patterns[i].pattern_len = pat_len;
5278 memcpy(new_triggers.patterns[i].pattern,
5279 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5280 pat_len);
5281 i++;
5282 }
5283 }
5284
5285 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5286 struct cfg80211_wowlan *ntrig;
5287 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5288 GFP_KERNEL);
5289 if (!ntrig) {
5290 err = -ENOMEM;
5291 goto error;
5292 }
5293 cfg80211_rdev_free_wowlan(rdev);
5294 rdev->wowlan = ntrig;
5295 } else {
5296 no_triggers:
5297 cfg80211_rdev_free_wowlan(rdev);
5298 rdev->wowlan = NULL;
5299 }
5300
5301 return 0;
5302 error:
5303 for (i = 0; i < new_triggers.n_patterns; i++)
5304 kfree(new_triggers.patterns[i].mask);
5305 kfree(new_triggers.patterns);
5306 return err;
5307}
5308
4c476991
JB		 5309#define NL80211_FLAG_NEED_WIPHY 0x01
5310#define NL80211_FLAG_NEED_NETDEV 0x02
5311#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5312#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5313#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5314 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5315
5316static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5317 struct genl_info *info)
5318{
5319 struct cfg80211_registered_device *rdev;
5320 struct net_device *dev;
5321 int err;
5322 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5323
5324 if (rtnl)
5325 rtnl_lock();
5326
5327 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5328 rdev = cfg80211_get_dev_from_info(info);
5329 if (IS_ERR(rdev)) {
5330 if (rtnl)
5331 rtnl_unlock();
5332 return PTR_ERR(rdev);
5333 }
5334 info->user_ptr[0] = rdev;
5335 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5336 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5337 if (err) {
5338 if (rtnl)
5339 rtnl_unlock();
5340 return err;
5341 }
41265714
JB		 5342 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5343 !netif_running(dev)) {
d537f5fd
JB		 5344 cfg80211_unlock_rdev(rdev);
5345 dev_put(dev);
41265714
JB		 5346 if (rtnl)
5347 rtnl_unlock();
5348 return -ENETDOWN;
5349 }
4c476991
JB		 5350 info->user_ptr[0] = rdev;
5351 info->user_ptr[1] = dev;
5352 }
5353
5354 return 0;
5355}
5356
5357static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5358 struct genl_info *info)
5359{
5360 if (info->user_ptr[0])
5361 cfg80211_unlock_rdev(info->user_ptr[0]);
5362 if (info->user_ptr[1])
5363 dev_put(info->user_ptr[1]);
5364 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5365 rtnl_unlock();
5366}
5367
55682965
JB		 5368static struct genl_ops nl80211_ops[] = {
5369 {
5370 .cmd = NL80211_CMD_GET_WIPHY,
5371 .doit = nl80211_get_wiphy,
5372 .dumpit = nl80211_dump_wiphy,
5373 .policy = nl80211_policy,
5374 /* can be retrieved by unprivileged users */
4c476991 5375 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5376 },
5377 {
5378 .cmd = NL80211_CMD_SET_WIPHY,
5379 .doit = nl80211_set_wiphy,
5380 .policy = nl80211_policy,
5381 .flags = GENL_ADMIN_PERM,
4c476991 5382 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5383 },
5384 {
5385 .cmd = NL80211_CMD_GET_INTERFACE,
5386 .doit = nl80211_get_interface,
5387 .dumpit = nl80211_dump_interface,
5388 .policy = nl80211_policy,
5389 /* can be retrieved by unprivileged users */
4c476991 5390 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5391 },
5392 {
5393 .cmd = NL80211_CMD_SET_INTERFACE,
5394 .doit = nl80211_set_interface,
5395 .policy = nl80211_policy,
5396 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5397 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5398 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5399 },
5400 {
5401 .cmd = NL80211_CMD_NEW_INTERFACE,
5402 .doit = nl80211_new_interface,
5403 .policy = nl80211_policy,
5404 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5405 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5406 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5407 },
5408 {
5409 .cmd = NL80211_CMD_DEL_INTERFACE,
5410 .doit = nl80211_del_interface,
5411 .policy = nl80211_policy,
41ade00f 5412 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5413 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5414 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5415 },
5416 {
5417 .cmd = NL80211_CMD_GET_KEY,
5418 .doit = nl80211_get_key,
5419 .policy = nl80211_policy,
5420 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5421 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5422 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5423 },
5424 {
5425 .cmd = NL80211_CMD_SET_KEY,
5426 .doit = nl80211_set_key,
5427 .policy = nl80211_policy,
5428 .flags = GENL_ADMIN_PERM,
41265714 5429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5430 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5431 },
5432 {
5433 .cmd = NL80211_CMD_NEW_KEY,
5434 .doit = nl80211_new_key,
5435 .policy = nl80211_policy,
5436 .flags = GENL_ADMIN_PERM,
41265714 5437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5438 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5439 },
5440 {
5441 .cmd = NL80211_CMD_DEL_KEY,
5442 .doit = nl80211_del_key,
5443 .policy = nl80211_policy,
55682965 5444 .flags = GENL_ADMIN_PERM,
41265714 5445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5446 NL80211_FLAG_NEED_RTNL,
55682965 5447 },
ed1b6cc7
JB		 5448 {
5449 .cmd = NL80211_CMD_SET_BEACON,
5450 .policy = nl80211_policy,
5451 .flags = GENL_ADMIN_PERM,
5452 .doit = nl80211_addset_beacon,
4c476991
JB		 5453 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5454 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5455 },
5456 {
5457 .cmd = NL80211_CMD_NEW_BEACON,
5458 .policy = nl80211_policy,
5459 .flags = GENL_ADMIN_PERM,
5460 .doit = nl80211_addset_beacon,
4c476991
JB		 5461 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5462 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5463 },
5464 {
5465 .cmd = NL80211_CMD_DEL_BEACON,
5466 .policy = nl80211_policy,
5467 .flags = GENL_ADMIN_PERM,
5468 .doit = nl80211_del_beacon,
4c476991
JB		 5469 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5470 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 5471 },
5727ef1b
JB		 5472 {
5473 .cmd = NL80211_CMD_GET_STATION,
5474 .doit = nl80211_get_station,
2ec600d6 5475 .dumpit = nl80211_dump_station,
5727ef1b 5476 .policy = nl80211_policy,
4c476991
JB		 5477 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5478 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5479 },
5480 {
5481 .cmd = NL80211_CMD_SET_STATION,
5482 .doit = nl80211_set_station,
5483 .policy = nl80211_policy,
5484 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5485 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5486 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5487 },
5488 {
5489 .cmd = NL80211_CMD_NEW_STATION,
5490 .doit = nl80211_new_station,
5491 .policy = nl80211_policy,
5492 .flags = GENL_ADMIN_PERM,
41265714 5493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5494 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5495 },
5496 {
5497 .cmd = NL80211_CMD_DEL_STATION,
5498 .doit = nl80211_del_station,
5499 .policy = nl80211_policy,
2ec600d6 5500 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5501 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5502 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5503 },
5504 {
5505 .cmd = NL80211_CMD_GET_MPATH,
5506 .doit = nl80211_get_mpath,
5507 .dumpit = nl80211_dump_mpath,
5508 .policy = nl80211_policy,
5509 .flags = GENL_ADMIN_PERM,
41265714 5510 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5511 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5512 },
5513 {
5514 .cmd = NL80211_CMD_SET_MPATH,
5515 .doit = nl80211_set_mpath,
5516 .policy = nl80211_policy,
5517 .flags = GENL_ADMIN_PERM,
41265714 5518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5519 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5520 },
5521 {
5522 .cmd = NL80211_CMD_NEW_MPATH,
5523 .doit = nl80211_new_mpath,
5524 .policy = nl80211_policy,
5525 .flags = GENL_ADMIN_PERM,
41265714 5526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5527 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5528 },
5529 {
5530 .cmd = NL80211_CMD_DEL_MPATH,
5531 .doit = nl80211_del_mpath,
5532 .policy = nl80211_policy,
9f1ba906 5533 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5535 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5536 },
5537 {
5538 .cmd = NL80211_CMD_SET_BSS,
5539 .doit = nl80211_set_bss,
5540 .policy = nl80211_policy,
b2e1b302 5541 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5542 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5543 NL80211_FLAG_NEED_RTNL,
b2e1b302 5544 },
f130347c
LR		 5545 {
5546 .cmd = NL80211_CMD_GET_REG,
5547 .doit = nl80211_get_reg,
5548 .policy = nl80211_policy,
5549 /* can be retrieved by unprivileged users */
5550 },
b2e1b302
LR		 5551 {
5552 .cmd = NL80211_CMD_SET_REG,
5553 .doit = nl80211_set_reg,
5554 .policy = nl80211_policy,
5555 .flags = GENL_ADMIN_PERM,
5556 },
5557 {
5558 .cmd = NL80211_CMD_REQ_SET_REG,
5559 .doit = nl80211_req_set_reg,
5560 .policy = nl80211_policy,
93da9cc1 5561 .flags = GENL_ADMIN_PERM,
5562 },
5563 {
24bdd9f4
JC		 5564 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5565 .doit = nl80211_get_mesh_config,
93da9cc1 5566 .policy = nl80211_policy,
5567 /* can be retrieved by unprivileged users */
4c476991
JB		 5568 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5569 NL80211_FLAG_NEED_RTNL,
93da9cc1 5570 },
5571 {
24bdd9f4
JC		 5572 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5573 .doit = nl80211_update_mesh_config,
93da9cc1 5574 .policy = nl80211_policy,
9aed3cc1 5575 .flags = GENL_ADMIN_PERM,
29cbe68c 5576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5577 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5578 },
2a519311
JB		 5579 {
5580 .cmd = NL80211_CMD_TRIGGER_SCAN,
5581 .doit = nl80211_trigger_scan,
5582 .policy = nl80211_policy,
5583 .flags = GENL_ADMIN_PERM,
41265714 5584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5585 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5586 },
5587 {
5588 .cmd = NL80211_CMD_GET_SCAN,
5589 .policy = nl80211_policy,
5590 .dumpit = nl80211_dump_scan,
5591 },
807f8a8c
LC		 5592 {
5593 .cmd = NL80211_CMD_START_SCHED_SCAN,
5594 .doit = nl80211_start_sched_scan,
5595 .policy = nl80211_policy,
5596 .flags = GENL_ADMIN_PERM,
5597 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5598 NL80211_FLAG_NEED_RTNL,
5599 },
5600 {
5601 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5602 .doit = nl80211_stop_sched_scan,
5603 .policy = nl80211_policy,
5604 .flags = GENL_ADMIN_PERM,
5605 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5606 NL80211_FLAG_NEED_RTNL,
5607 },
636a5d36
JM		 5608 {
5609 .cmd = NL80211_CMD_AUTHENTICATE,
5610 .doit = nl80211_authenticate,
5611 .policy = nl80211_policy,
5612 .flags = GENL_ADMIN_PERM,
41265714 5613 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5614 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5615 },
5616 {
5617 .cmd = NL80211_CMD_ASSOCIATE,
5618 .doit = nl80211_associate,
5619 .policy = nl80211_policy,
5620 .flags = GENL_ADMIN_PERM,
41265714 5621 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5622 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5623 },
5624 {
5625 .cmd = NL80211_CMD_DEAUTHENTICATE,
5626 .doit = nl80211_deauthenticate,
5627 .policy = nl80211_policy,
5628 .flags = GENL_ADMIN_PERM,
41265714 5629 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5630 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5631 },
5632 {
5633 .cmd = NL80211_CMD_DISASSOCIATE,
5634 .doit = nl80211_disassociate,
5635 .policy = nl80211_policy,
5636 .flags = GENL_ADMIN_PERM,
41265714 5637 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5638 NL80211_FLAG_NEED_RTNL,
636a5d36 5639 },
04a773ad
JB		 5640 {
5641 .cmd = NL80211_CMD_JOIN_IBSS,
5642 .doit = nl80211_join_ibss,
5643 .policy = nl80211_policy,
5644 .flags = GENL_ADMIN_PERM,
41265714 5645 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5646 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5647 },
5648 {
5649 .cmd = NL80211_CMD_LEAVE_IBSS,
5650 .doit = nl80211_leave_ibss,
5651 .policy = nl80211_policy,
5652 .flags = GENL_ADMIN_PERM,
41265714 5653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5654 NL80211_FLAG_NEED_RTNL,
04a773ad 5655 },
aff89a9b
JB		 5656#ifdef CONFIG_NL80211_TESTMODE
5657 {
5658 .cmd = NL80211_CMD_TESTMODE,
5659 .doit = nl80211_testmode_do,
5660 .policy = nl80211_policy,
5661 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5662 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5663 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5664 },
5665#endif
b23aa676
SO		 5666 {
5667 .cmd = NL80211_CMD_CONNECT,
5668 .doit = nl80211_connect,
5669 .policy = nl80211_policy,
5670 .flags = GENL_ADMIN_PERM,
41265714 5671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5672 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5673 },
5674 {
5675 .cmd = NL80211_CMD_DISCONNECT,
5676 .doit = nl80211_disconnect,
5677 .policy = nl80211_policy,
5678 .flags = GENL_ADMIN_PERM,
41265714 5679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5680 NL80211_FLAG_NEED_RTNL,
b23aa676 5681 },
463d0183
JB		 5682 {
5683 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5684 .doit = nl80211_wiphy_netns,
5685 .policy = nl80211_policy,
5686 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5687 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5688 NL80211_FLAG_NEED_RTNL,
463d0183 5689 },
61fa713c
HS		 5690 {
5691 .cmd = NL80211_CMD_GET_SURVEY,
5692 .policy = nl80211_policy,
5693 .dumpit = nl80211_dump_survey,
5694 },
67fbb16b
SO		 5695 {
5696 .cmd = NL80211_CMD_SET_PMKSA,
5697 .doit = nl80211_setdel_pmksa,
5698 .policy = nl80211_policy,
5699 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5700 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5701 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5702 },
5703 {
5704 .cmd = NL80211_CMD_DEL_PMKSA,
5705 .doit = nl80211_setdel_pmksa,
5706 .policy = nl80211_policy,
5707 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5708 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5709 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5710 },
5711 {
5712 .cmd = NL80211_CMD_FLUSH_PMKSA,
5713 .doit = nl80211_flush_pmksa,
5714 .policy = nl80211_policy,
5715 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5716 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5717 NL80211_FLAG_NEED_RTNL,
67fbb16b 5718 },
9588bbd5
JM		 5719 {
5720 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5721 .doit = nl80211_remain_on_channel,
5722 .policy = nl80211_policy,
5723 .flags = GENL_ADMIN_PERM,
41265714 5724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5725 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5726 },
5727 {
5728 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5729 .doit = nl80211_cancel_remain_on_channel,
5730 .policy = nl80211_policy,
5731 .flags = GENL_ADMIN_PERM,
41265714 5732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5733 NL80211_FLAG_NEED_RTNL,
9588bbd5 5734 },
13ae75b1
JM		 5735 {
5736 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5737 .doit = nl80211_set_tx_bitrate_mask,
5738 .policy = nl80211_policy,
5739 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5740 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5741 NL80211_FLAG_NEED_RTNL,
13ae75b1 5742 },
026331c4 5743 {
2e161f78
JB		 5744 .cmd = NL80211_CMD_REGISTER_FRAME,
5745 .doit = nl80211_register_mgmt,
026331c4
JM		 5746 .policy = nl80211_policy,
5747 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5748 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5749 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5750 },
5751 {
2e161f78
JB		 5752 .cmd = NL80211_CMD_FRAME,
5753 .doit = nl80211_tx_mgmt,
026331c4 5754 .policy = nl80211_policy,
f7ca38df
JB		 5755 .flags = GENL_ADMIN_PERM,
5756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5757 NL80211_FLAG_NEED_RTNL,
5758 },
5759 {
5760 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
5761 .doit = nl80211_tx_mgmt_cancel_wait,
5762 .policy = nl80211_policy,
026331c4 5763 .flags = GENL_ADMIN_PERM,
41265714 5764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5765 NL80211_FLAG_NEED_RTNL,
026331c4 5766 },
ffb9eb3d
KV		 5767 {
5768 .cmd = NL80211_CMD_SET_POWER_SAVE,
5769 .doit = nl80211_set_power_save,
5770 .policy = nl80211_policy,
5771 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5772 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5773 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 5774 },
5775 {
5776 .cmd = NL80211_CMD_GET_POWER_SAVE,
5777 .doit = nl80211_get_power_save,
5778 .policy = nl80211_policy,
5779 /* can be retrieved by unprivileged users */
4c476991
JB		 5780 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5781 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 5782 },
d6dc1a38
JO		 5783 {
5784 .cmd = NL80211_CMD_SET_CQM,
5785 .doit = nl80211_set_cqm,
5786 .policy = nl80211_policy,
5787 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5789 NL80211_FLAG_NEED_RTNL,
d6dc1a38 5790 },
f444de05
JB		 5791 {
5792 .cmd = NL80211_CMD_SET_CHANNEL,
5793 .doit = nl80211_set_channel,
5794 .policy = nl80211_policy,
5795 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5796 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5797 NL80211_FLAG_NEED_RTNL,
f444de05 5798 },
e8347eba
BJ		 5799 {
5800 .cmd = NL80211_CMD_SET_WDS_PEER,
5801 .doit = nl80211_set_wds_peer,
5802 .policy = nl80211_policy,
5803 .flags = GENL_ADMIN_PERM,
43b19952
JB		 5804 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5805 NL80211_FLAG_NEED_RTNL,
e8347eba 5806 },
29cbe68c
JB		 5807 {
5808 .cmd = NL80211_CMD_JOIN_MESH,
5809 .doit = nl80211_join_mesh,
5810 .policy = nl80211_policy,
5811 .flags = GENL_ADMIN_PERM,
5812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5813 NL80211_FLAG_NEED_RTNL,
5814 },
5815 {
5816 .cmd = NL80211_CMD_LEAVE_MESH,
5817 .doit = nl80211_leave_mesh,
5818 .policy = nl80211_policy,
5819 .flags = GENL_ADMIN_PERM,
5820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5821 NL80211_FLAG_NEED_RTNL,
5822 },
ff1b6e69
JB		 5823 {
5824 .cmd = NL80211_CMD_GET_WOWLAN,
5825 .doit = nl80211_get_wowlan,
5826 .policy = nl80211_policy,
5827 /* can be retrieved by unprivileged users */
5828 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5829 NL80211_FLAG_NEED_RTNL,
5830 },
5831 {
5832 .cmd = NL80211_CMD_SET_WOWLAN,
5833 .doit = nl80211_set_wowlan,
5834 .policy = nl80211_policy,
5835 .flags = GENL_ADMIN_PERM,
5836 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5837 NL80211_FLAG_NEED_RTNL,
5838 },
55682965 5839};
9588bbd5 5840
6039f6d2
JM		 5841static struct genl_multicast_group nl80211_mlme_mcgrp = {
5842 .name = "mlme",
5843};
55682965
JB		 5844
5845/* multicast groups */
5846static struct genl_multicast_group nl80211_config_mcgrp = {
5847 .name = "config",
5848};
2a519311
JB		 5849static struct genl_multicast_group nl80211_scan_mcgrp = {
5850 .name = "scan",
5851};
73d54c9e
LR		 5852static struct genl_multicast_group nl80211_regulatory_mcgrp = {
5853 .name = "regulatory",
5854};
55682965
JB		 5855
5856/* notification functions */
5857
5858void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
5859{
5860 struct sk_buff *msg;
5861
fd2120ca 5862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 5863 if (!msg)
5864 return;
5865
5866 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
5867 nlmsg_free(msg);
5868 return;
5869 }
5870
463d0183
JB		 5871 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5872 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 5873}
5874
362a415d
JB		 5875static int nl80211_add_scan_req(struct sk_buff *msg,
5876 struct cfg80211_registered_device *rdev)
5877{
5878 struct cfg80211_scan_request *req = rdev->scan_req;
5879 struct nlattr *nest;
5880 int i;
5881
667503dd
JB		 5882 ASSERT_RDEV_LOCK(rdev);
5883
362a415d
JB		 5884 if (WARN_ON(!req))
5885 return 0;
5886
5887 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5888 if (!nest)
5889 goto nla_put_failure;
5890 for (i = 0; i < req->n_ssids; i++)
5891 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5892 nla_nest_end(msg, nest);
5893
5894 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5895 if (!nest)
5896 goto nla_put_failure;
5897 for (i = 0; i < req->n_channels; i++)
5898 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5899 nla_nest_end(msg, nest);
5900
5901 if (req->ie)
5902 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5903
5904 return 0;
5905 nla_put_failure:
5906 return -ENOBUFS;
5907}
5908
a538e2d5
JB		 5909static int nl80211_send_scan_msg(struct sk_buff *msg,
5910 struct cfg80211_registered_device *rdev,
5911 struct net_device *netdev,
5912 u32 pid, u32 seq, int flags,
5913 u32 cmd)
2a519311
JB		 5914{
5915 void *hdr;
5916
5917 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5918 if (!hdr)
5919 return -1;
5920
b5850a7a 5921 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5922 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5923
362a415d
JB		 5924 /* ignore errors and send incomplete event anyway */
5925 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5926
5927 return genlmsg_end(msg, hdr);
5928
5929 nla_put_failure:
5930 genlmsg_cancel(msg, hdr);
5931 return -EMSGSIZE;
5932}
5933
807f8a8c
LC		 5934static int
5935nl80211_send_sched_scan_msg(struct sk_buff *msg,
5936 struct cfg80211_registered_device *rdev,
5937 struct net_device *netdev,
5938 u32 pid, u32 seq, int flags, u32 cmd)
5939{
5940 void *hdr;
5941
5942 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5943 if (!hdr)
5944 return -1;
5945
5946 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5947 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5948
5949 return genlmsg_end(msg, hdr);
5950
5951 nla_put_failure:
5952 genlmsg_cancel(msg, hdr);
5953 return -EMSGSIZE;
5954}
5955
a538e2d5
JB		 5956void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5957 struct net_device *netdev)
5958{
5959 struct sk_buff *msg;
5960
5961 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5962 if (!msg)
5963 return;
5964
5965 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5966 NL80211_CMD_TRIGGER_SCAN) < 0) {
5967 nlmsg_free(msg);
5968 return;
5969 }
5970
463d0183
JB		 5971 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5972 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5973}
5974
2a519311
JB		 5975void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5976 struct net_device *netdev)
5977{
5978 struct sk_buff *msg;
5979
fd2120ca 5980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5981 if (!msg)
5982 return;
5983
a538e2d5
JB		 5984 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5985 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5986 nlmsg_free(msg);
5987 return;
5988 }
5989
463d0183
JB		 5990 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5991 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5992}
5993
5994void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5995 struct net_device *netdev)
5996{
5997 struct sk_buff *msg;
5998
fd2120ca 5999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6000 if (!msg)
6001 return;
6002
a538e2d5
JB		 6003 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6004 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6005 nlmsg_free(msg);
6006 return;
6007 }
6008
463d0183
JB		 6009 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6010 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6011}
6012
807f8a8c
LC		 6013void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6014 struct net_device *netdev)
6015{
6016 struct sk_buff *msg;
6017
6018 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6019 if (!msg)
6020 return;
6021
6022 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6023 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6024 nlmsg_free(msg);
6025 return;
6026 }
6027
6028 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6029 nl80211_scan_mcgrp.id, GFP_KERNEL);
6030}
6031
6032void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6033 struct net_device *netdev, u32 cmd)
6034{
6035 struct sk_buff *msg;
6036
6037 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6038 if (!msg)
6039 return;
6040
6041 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6042 nlmsg_free(msg);
6043 return;
6044 }
6045
6046 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6047 nl80211_scan_mcgrp.id, GFP_KERNEL);
6048}
6049
73d54c9e
LR		 6050/*
6051 * This can happen on global regulatory changes or device specific settings
6052 * based on custom world regulatory domains.
6053 */
6054void nl80211_send_reg_change_event(struct regulatory_request *request)
6055{
6056 struct sk_buff *msg;
6057 void *hdr;
6058
fd2120ca 6059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6060 if (!msg)
6061 return;
6062
6063 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6064 if (!hdr) {
6065 nlmsg_free(msg);
6066 return;
6067 }
6068
6069 /* Userspace can always count this one always being set */
6070 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6071
6072 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6073 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6074 NL80211_REGDOM_TYPE_WORLD);
6075 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6076 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6077 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6078 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6079 request->intersect)
6080 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6081 NL80211_REGDOM_TYPE_INTERSECTION);
6082 else {
6083 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6084 NL80211_REGDOM_TYPE_COUNTRY);
6085 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6086 }
6087
6088 if (wiphy_idx_valid(request->wiphy_idx))
6089 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6090
6091 if (genlmsg_end(msg, hdr) < 0) {
6092 nlmsg_free(msg);
6093 return;
6094 }
6095
bc43b28c 6096 rcu_read_lock();
463d0183 6097 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6098 GFP_ATOMIC);
6099 rcu_read_unlock();
73d54c9e
LR		 6100
6101 return;
6102
6103nla_put_failure:
6104 genlmsg_cancel(msg, hdr);
6105 nlmsg_free(msg);
6106}
6107
6039f6d2
JM		 6108static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6109 struct net_device *netdev,
6110 const u8 *buf, size_t len,
e6d6e342 6111 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6112{
6113 struct sk_buff *msg;
6114 void *hdr;
6115
e6d6e342 6116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6117 if (!msg)
6118 return;
6119
6120 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6121 if (!hdr) {
6122 nlmsg_free(msg);
6123 return;
6124 }
6125
6126 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6127 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6128 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6129
6130 if (genlmsg_end(msg, hdr) < 0) {
6131 nlmsg_free(msg);
6132 return;
6133 }
6134
463d0183
JB		 6135 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6136 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6137 return;
6138
6139 nla_put_failure:
6140 genlmsg_cancel(msg, hdr);
6141 nlmsg_free(msg);
6142}
6143
6144void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6145 struct net_device *netdev, const u8 *buf,
6146 size_t len, gfp_t gfp)
6039f6d2
JM		 6147{
6148 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6149 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6150}
6151
6152void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6153 struct net_device *netdev, const u8 *buf,
e6d6e342 6154 size_t len, gfp_t gfp)
6039f6d2 6155{
e6d6e342
JB		 6156 nl80211_send_mlme_event(rdev, netdev, buf, len,
6157 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6158}
6159
53b46b84 6160void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6161 struct net_device *netdev, const u8 *buf,
6162 size_t len, gfp_t gfp)
6039f6d2
JM		 6163{
6164 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6165 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6166}
6167
53b46b84
JM		 6168void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6169 struct net_device *netdev, const u8 *buf,
e6d6e342 6170 size_t len, gfp_t gfp)
6039f6d2
JM		 6171{
6172 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6173 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6174}
6175
cf4e594e
JM		 6176void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6177 struct net_device *netdev, const u8 *buf,
6178 size_t len, gfp_t gfp)
6179{
6180 nl80211_send_mlme_event(rdev, netdev, buf, len,
6181 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6182}
6183
6184void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6185 struct net_device *netdev, const u8 *buf,
6186 size_t len, gfp_t gfp)
6187{
6188 nl80211_send_mlme_event(rdev, netdev, buf, len,
6189 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6190}
6191
1b06bb40
LR		 6192static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6193 struct net_device *netdev, int cmd,
e6d6e342 6194 const u8 *addr, gfp_t gfp)
1965c853
JM		 6195{
6196 struct sk_buff *msg;
6197 void *hdr;
6198
e6d6e342 6199 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6200 if (!msg)
6201 return;
6202
6203 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6204 if (!hdr) {
6205 nlmsg_free(msg);
6206 return;
6207 }
6208
6209 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6210 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6211 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6212 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6213
6214 if (genlmsg_end(msg, hdr) < 0) {
6215 nlmsg_free(msg);
6216 return;
6217 }
6218
463d0183
JB		 6219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6220 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6221 return;
6222
6223 nla_put_failure:
6224 genlmsg_cancel(msg, hdr);
6225 nlmsg_free(msg);
6226}
6227
6228void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6229 struct net_device *netdev, const u8 *addr,
6230 gfp_t gfp)
1965c853
JM		 6231{
6232 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6233 addr, gfp);
1965c853
JM		 6234}
6235
6236void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6237 struct net_device *netdev, const u8 *addr,
6238 gfp_t gfp)
1965c853 6239{
e6d6e342
JB		 6240 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6241 addr, gfp);
1965c853
JM		 6242}
6243
b23aa676
SO		 6244void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6245 struct net_device *netdev, const u8 *bssid,
6246 const u8 *req_ie, size_t req_ie_len,
6247 const u8 *resp_ie, size_t resp_ie_len,
6248 u16 status, gfp_t gfp)
6249{
6250 struct sk_buff *msg;
6251 void *hdr;
6252
6253 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6254 if (!msg)
6255 return;
6256
6257 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6258 if (!hdr) {
6259 nlmsg_free(msg);
6260 return;
6261 }
6262
6263 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6264 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6265 if (bssid)
6266 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6267 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6268 if (req_ie)
6269 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6270 if (resp_ie)
6271 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6272
6273 if (genlmsg_end(msg, hdr) < 0) {
6274 nlmsg_free(msg);
6275 return;
6276 }
6277
463d0183
JB		 6278 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6279 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6280 return;
6281
6282 nla_put_failure:
6283 genlmsg_cancel(msg, hdr);
6284 nlmsg_free(msg);
6285
6286}
6287
6288void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6289 struct net_device *netdev, const u8 *bssid,
6290 const u8 *req_ie, size_t req_ie_len,
6291 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6292{
6293 struct sk_buff *msg;
6294 void *hdr;
6295
6296 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6297 if (!msg)
6298 return;
6299
6300 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6301 if (!hdr) {
6302 nlmsg_free(msg);
6303 return;
6304 }
6305
6306 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6307 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6308 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6309 if (req_ie)
6310 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6311 if (resp_ie)
6312 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6313
6314 if (genlmsg_end(msg, hdr) < 0) {
6315 nlmsg_free(msg);
6316 return;
6317 }
6318
463d0183
JB		 6319 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6320 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6321 return;
6322
6323 nla_put_failure:
6324 genlmsg_cancel(msg, hdr);
6325 nlmsg_free(msg);
6326
6327}
6328
6329void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6330 struct net_device *netdev, u16 reason,
667503dd 6331 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6332{
6333 struct sk_buff *msg;
6334 void *hdr;
6335
667503dd 6336 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6337 if (!msg)
6338 return;
6339
6340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6341 if (!hdr) {
6342 nlmsg_free(msg);
6343 return;
6344 }
6345
6346 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6347 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6348 if (from_ap && reason)
6349 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6350 if (from_ap)
6351 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6352 if (ie)
6353 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6354
6355 if (genlmsg_end(msg, hdr) < 0) {
6356 nlmsg_free(msg);
6357 return;
6358 }
6359
463d0183
JB		 6360 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6361 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6362 return;
6363
6364 nla_put_failure:
6365 genlmsg_cancel(msg, hdr);
6366 nlmsg_free(msg);
6367
6368}
6369
04a773ad
JB		 6370void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6371 struct net_device *netdev, const u8 *bssid,
6372 gfp_t gfp)
6373{
6374 struct sk_buff *msg;
6375 void *hdr;
6376
fd2120ca 6377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6378 if (!msg)
6379 return;
6380
6381 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6382 if (!hdr) {
6383 nlmsg_free(msg);
6384 return;
6385 }
6386
6387 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6388 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6389 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6390
6391 if (genlmsg_end(msg, hdr) < 0) {
6392 nlmsg_free(msg);
6393 return;
6394 }
6395
463d0183
JB		 6396 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6397 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6398 return;
6399
6400 nla_put_failure:
6401 genlmsg_cancel(msg, hdr);
6402 nlmsg_free(msg);
6403}
6404
c93b5e71
JC		 6405void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6406 struct net_device *netdev,
6407 const u8 *macaddr, const u8* ie, u8 ie_len,
6408 gfp_t gfp)
6409{
6410 struct sk_buff *msg;
6411 void *hdr;
6412
6413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6414 if (!msg)
6415 return;
6416
6417 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6418 if (!hdr) {
6419 nlmsg_free(msg);
6420 return;
6421 }
6422
6423 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6424 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6425 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6426 if (ie_len && ie)
6427 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6428
6429 if (genlmsg_end(msg, hdr) < 0) {
6430 nlmsg_free(msg);
6431 return;
6432 }
6433
6434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6435 nl80211_mlme_mcgrp.id, gfp);
6436 return;
6437
6438 nla_put_failure:
6439 genlmsg_cancel(msg, hdr);
6440 nlmsg_free(msg);
6441}
6442
a3b8b056
JM		 6443void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6444 struct net_device *netdev, const u8 *addr,
6445 enum nl80211_key_type key_type, int key_id,
e6d6e342 6446 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 6447{
6448 struct sk_buff *msg;
6449 void *hdr;
6450
e6d6e342 6451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 6452 if (!msg)
6453 return;
6454
6455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6456 if (!hdr) {
6457 nlmsg_free(msg);
6458 return;
6459 }
6460
6461 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6462 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6463 if (addr)
6464 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6465 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
6466 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
6467 if (tsc)
6468 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6469
6470 if (genlmsg_end(msg, hdr) < 0) {
6471 nlmsg_free(msg);
6472 return;
6473 }
6474
463d0183
JB		 6475 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6476 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 6477 return;
6478
6479 nla_put_failure:
6480 genlmsg_cancel(msg, hdr);
6481 nlmsg_free(msg);
6482}
6483
6bad8766
LR		 6484void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6485 struct ieee80211_channel *channel_before,
6486 struct ieee80211_channel *channel_after)
6487{
6488 struct sk_buff *msg;
6489 void *hdr;
6490 struct nlattr *nl_freq;
6491
fd2120ca 6492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 6493 if (!msg)
6494 return;
6495
6496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6497 if (!hdr) {
6498 nlmsg_free(msg);
6499 return;
6500 }
6501
6502 /*
6503 * Since we are applying the beacon hint to a wiphy we know its
6504 * wiphy_idx is valid
6505 */
6506 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6507
6508 /* Before */
6509 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6510 if (!nl_freq)
6511 goto nla_put_failure;
6512 if (nl80211_msg_put_channel(msg, channel_before))
6513 goto nla_put_failure;
6514 nla_nest_end(msg, nl_freq);
6515
6516 /* After */
6517 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6518 if (!nl_freq)
6519 goto nla_put_failure;
6520 if (nl80211_msg_put_channel(msg, channel_after))
6521 goto nla_put_failure;
6522 nla_nest_end(msg, nl_freq);
6523
6524 if (genlmsg_end(msg, hdr) < 0) {
6525 nlmsg_free(msg);
6526 return;
6527 }
6528
463d0183
JB		 6529 rcu_read_lock();
6530 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6531 GFP_ATOMIC);
6532 rcu_read_unlock();
6bad8766
LR		 6533
6534 return;
6535
6536nla_put_failure:
6537 genlmsg_cancel(msg, hdr);
6538 nlmsg_free(msg);
6539}
6540
9588bbd5
JM		 6541static void nl80211_send_remain_on_chan_event(
6542 int cmd, struct cfg80211_registered_device *rdev,
6543 struct net_device *netdev, u64 cookie,
6544 struct ieee80211_channel *chan,
6545 enum nl80211_channel_type channel_type,
6546 unsigned int duration, gfp_t gfp)
6547{
6548 struct sk_buff *msg;
6549 void *hdr;
6550
6551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6552 if (!msg)
6553 return;
6554
6555 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6556 if (!hdr) {
6557 nlmsg_free(msg);
6558 return;
6559 }
6560
6561 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6562 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6563 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6564 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6565 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6566
6567 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6568 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6569
6570 if (genlmsg_end(msg, hdr) < 0) {
6571 nlmsg_free(msg);
6572 return;
6573 }
6574
6575 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6576 nl80211_mlme_mcgrp.id, gfp);
6577 return;
6578
6579 nla_put_failure:
6580 genlmsg_cancel(msg, hdr);
6581 nlmsg_free(msg);
6582}
6583
6584void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6585 struct net_device *netdev, u64 cookie,
6586 struct ieee80211_channel *chan,
6587 enum nl80211_channel_type channel_type,
6588 unsigned int duration, gfp_t gfp)
6589{
6590 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6591 rdev, netdev, cookie, chan,
6592 channel_type, duration, gfp);
6593}
6594
6595void nl80211_send_remain_on_channel_cancel(
6596 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6597 u64 cookie, struct ieee80211_channel *chan,
6598 enum nl80211_channel_type channel_type, gfp_t gfp)
6599{
6600 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6601 rdev, netdev, cookie, chan,
6602 channel_type, 0, gfp);
6603}
6604
98b62183
JB		 6605void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6606 struct net_device *dev, const u8 *mac_addr,
6607 struct station_info *sinfo, gfp_t gfp)
6608{
6609 struct sk_buff *msg;
6610
6611 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6612 if (!msg)
6613 return;
6614
6615 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6616 nlmsg_free(msg);
6617 return;
6618 }
6619
6620 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6621 nl80211_mlme_mcgrp.id, gfp);
6622}
6623
ec15e68b
JM		 6624void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6625 struct net_device *dev, const u8 *mac_addr,
6626 gfp_t gfp)
6627{
6628 struct sk_buff *msg;
6629 void *hdr;
6630
6631 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6632 if (!msg)
6633 return;
6634
6635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6636 if (!hdr) {
6637 nlmsg_free(msg);
6638 return;
6639 }
6640
6641 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6642 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6643
6644 if (genlmsg_end(msg, hdr) < 0) {
6645 nlmsg_free(msg);
6646 return;
6647 }
6648
6649 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6650 nl80211_mlme_mcgrp.id, gfp);
6651 return;
6652
6653 nla_put_failure:
6654 genlmsg_cancel(msg, hdr);
6655 nlmsg_free(msg);
6656}
6657
2e161f78
JB		 6658int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6659 struct net_device *netdev, u32 nlpid,
6660 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6661{
6662 struct sk_buff *msg;
6663 void *hdr;
6664 int err;
6665
6666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6667 if (!msg)
6668 return -ENOMEM;
6669
2e161f78 6670 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6671 if (!hdr) {
6672 nlmsg_free(msg);
6673 return -ENOMEM;
6674 }
6675
6676 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6677 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6678 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6679 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6680
6681 err = genlmsg_end(msg, hdr);
6682 if (err < 0) {
6683 nlmsg_free(msg);
6684 return err;
6685 }
6686
6687 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6688 if (err < 0)
6689 return err;
6690 return 0;
6691
6692 nla_put_failure:
6693 genlmsg_cancel(msg, hdr);
6694 nlmsg_free(msg);
6695 return -ENOBUFS;
6696}
6697
2e161f78
JB		 6698void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6699 struct net_device *netdev, u64 cookie,
6700 const u8 *buf, size_t len, bool ack,
6701 gfp_t gfp)
026331c4
JM		 6702{
6703 struct sk_buff *msg;
6704 void *hdr;
6705
6706 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6707 if (!msg)
6708 return;
6709
2e161f78 6710 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6711 if (!hdr) {
6712 nlmsg_free(msg);
6713 return;
6714 }
6715
6716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6717 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6718 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6719 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6720 if (ack)
6721 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6722
6723 if (genlmsg_end(msg, hdr) < 0) {
6724 nlmsg_free(msg);
6725 return;
6726 }
6727
6728 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6729 return;
6730
6731 nla_put_failure:
6732 genlmsg_cancel(msg, hdr);
6733 nlmsg_free(msg);
6734}
6735
d6dc1a38
JO		 6736void
6737nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6738 struct net_device *netdev,
6739 enum nl80211_cqm_rssi_threshold_event rssi_event,
6740 gfp_t gfp)
6741{
6742 struct sk_buff *msg;
6743 struct nlattr *pinfoattr;
6744 void *hdr;
6745
6746 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6747 if (!msg)
6748 return;
6749
6750 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6751 if (!hdr) {
6752 nlmsg_free(msg);
6753 return;
6754 }
6755
6756 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6757 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6758
6759 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6760 if (!pinfoattr)
6761 goto nla_put_failure;
6762
6763 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
6764 rssi_event);
6765
6766 nla_nest_end(msg, pinfoattr);
6767
6768 if (genlmsg_end(msg, hdr) < 0) {
6769 nlmsg_free(msg);
6770 return;
6771 }
6772
6773 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6774 nl80211_mlme_mcgrp.id, gfp);
6775 return;
6776
6777 nla_put_failure:
6778 genlmsg_cancel(msg, hdr);
6779 nlmsg_free(msg);
6780}
6781
c063dbf5
JB		 6782void
6783nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
6784 struct net_device *netdev, const u8 *peer,
6785 u32 num_packets, gfp_t gfp)
6786{
6787 struct sk_buff *msg;
6788 struct nlattr *pinfoattr;
6789 void *hdr;
6790
6791 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6792 if (!msg)
6793 return;
6794
6795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
6796 if (!hdr) {
6797 nlmsg_free(msg);
6798 return;
6799 }
6800
6801 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6802 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6803 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
6804
6805 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
6806 if (!pinfoattr)
6807 goto nla_put_failure;
6808
6809 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
6810
6811 nla_nest_end(msg, pinfoattr);
6812
6813 if (genlmsg_end(msg, hdr) < 0) {
6814 nlmsg_free(msg);
6815 return;
6816 }
6817
6818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6819 nl80211_mlme_mcgrp.id, gfp);
6820 return;
6821
6822 nla_put_failure:
6823 genlmsg_cancel(msg, hdr);
6824 nlmsg_free(msg);
6825}
6826
026331c4
JM		 6827static int nl80211_netlink_notify(struct notifier_block * nb,
6828 unsigned long state,
6829 void *_notify)
6830{
6831 struct netlink_notify *notify = _notify;
6832 struct cfg80211_registered_device *rdev;
6833 struct wireless_dev *wdev;
6834
6835 if (state != NETLINK_URELEASE)
6836 return NOTIFY_DONE;
6837
6838 rcu_read_lock();
6839
6840 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
6841 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 6842 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 6843
6844 rcu_read_unlock();
6845
6846 return NOTIFY_DONE;
6847}
6848
6849static struct notifier_block nl80211_netlink_notifier = {
6850 .notifier_call = nl80211_netlink_notify,
6851};
6852
55682965
JB		 6853/* initialisation/exit functions */
6854
6855int nl80211_init(void)
6856{
0d63cbb5 6857 int err;
55682965 6858
0d63cbb5
MM		 6859 err = genl_register_family_with_ops(&nl80211_fam,
6860 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 6861 if (err)
6862 return err;
6863
55682965
JB		 6864 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
6865 if (err)
6866 goto err_out;
6867
2a519311
JB		 6868 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
6869 if (err)
6870 goto err_out;
6871
73d54c9e
LR		 6872 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
6873 if (err)
6874 goto err_out;
6875
6039f6d2
JM		 6876 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
6877 if (err)
6878 goto err_out;
6879
aff89a9b
JB		 6880#ifdef CONFIG_NL80211_TESTMODE
6881 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
6882 if (err)
6883 goto err_out;
6884#endif
6885
026331c4
JM		 6886 err = netlink_register_notifier(&nl80211_netlink_notifier);
6887 if (err)
6888 goto err_out;
6889
55682965
JB		 6890 return 0;
6891 err_out:
6892 genl_unregister_family(&nl80211_fam);
6893 return err;
6894}
6895
6896void nl80211_exit(void)
6897{
026331c4 6898 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 6899 genl_unregister_family(&nl80211_fam);
6900}
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