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cfg80211/mac80211: move information element parsing logic to cfg80211
[mirror_ubuntu-focal-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 },
e5497d76 179 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 180 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
55682965
JB		 181};
182
e31b8213 183/* policy for the key attributes */
b54452b0 184static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 185 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 186 [NL80211_KEY_IDX] = { .type = NLA_U8 },
187 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
188 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
189 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
190 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 191 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 192 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
193};
194
195/* policy for the key default flags */
196static const struct nla_policy
197nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
198 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
199 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 200};
201
ff1b6e69
JB		 202/* policy for WoWLAN attributes */
203static const struct nla_policy
204nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
205 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
206 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
207 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
208 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 209 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
210 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
211 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
212 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 213};
214
e5497d76
JB		 215/* policy for GTK rekey offload attributes */
216static const struct nla_policy
217nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
218 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
219 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
220 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
221};
222
a043897a
HS		 223/* ifidx get helper */
224static int nl80211_get_ifidx(struct netlink_callback *cb)
225{
226 int res;
227
228 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
229 nl80211_fam.attrbuf, nl80211_fam.maxattr,
230 nl80211_policy);
231 if (res)
232 return res;
233
234 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
235 return -EINVAL;
236
237 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
238 if (!res)
239 return -EINVAL;
240 return res;
241}
242
67748893
JB		 243static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
244 struct netlink_callback *cb,
245 struct cfg80211_registered_device **rdev,
246 struct net_device **dev)
247{
248 int ifidx = cb->args[0];
249 int err;
250
251 if (!ifidx)
252 ifidx = nl80211_get_ifidx(cb);
253 if (ifidx < 0)
254 return ifidx;
255
256 cb->args[0] = ifidx;
257
258 rtnl_lock();
259
260 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
261 if (!*dev) {
262 err = -ENODEV;
263 goto out_rtnl;
264 }
265
266 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 267 if (IS_ERR(*rdev)) {
268 err = PTR_ERR(*rdev);
67748893
JB		 269 goto out_rtnl;
270 }
271
272 return 0;
273 out_rtnl:
274 rtnl_unlock();
275 return err;
276}
277
278static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
279{
280 cfg80211_unlock_rdev(rdev);
281 rtnl_unlock();
282}
283
f4a11bb0
JB		 284/* IE validation */
285static bool is_valid_ie_attr(const struct nlattr *attr)
286{
287 const u8 *pos;
288 int len;
289
290 if (!attr)
291 return true;
292
293 pos = nla_data(attr);
294 len = nla_len(attr);
295
296 while (len) {
297 u8 elemlen;
298
299 if (len < 2)
300 return false;
301 len -= 2;
302
303 elemlen = pos[1];
304 if (elemlen > len)
305 return false;
306
307 len -= elemlen;
308 pos += 2 + elemlen;
309 }
310
311 return true;
312}
313
55682965
JB		 314/* message building helper */
315static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
316 int flags, u8 cmd)
317{
318 /* since there is no private header just add the generic one */
319 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
320}
321
5dab3b8a
LR		 322static int nl80211_msg_put_channel(struct sk_buff *msg,
323 struct ieee80211_channel *chan)
324{
325 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
326 chan->center_freq);
327
328 if (chan->flags & IEEE80211_CHAN_DISABLED)
329 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
330 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
331 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
332 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
333 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
334 if (chan->flags & IEEE80211_CHAN_RADAR)
335 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
336
337 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
338 DBM_TO_MBM(chan->max_power));
339
340 return 0;
341
342 nla_put_failure:
343 return -ENOBUFS;
344}
345
55682965
JB		 346/* netlink command implementations */
347
b9454e83
JB		 348struct key_parse {
349 struct key_params p;
350 int idx;
e31b8213 351 int type;
b9454e83 352 bool def, defmgmt;
dbd2fd65 353 bool def_uni, def_multi;
b9454e83
JB		 354};
355
356static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
357{
358 struct nlattr *tb[NL80211_KEY_MAX + 1];
359 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
360 nl80211_key_policy);
361 if (err)
362 return err;
363
364 k->def = !!tb[NL80211_KEY_DEFAULT];
365 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
366
dbd2fd65
JB		 367 if (k->def) {
368 k->def_uni = true;
369 k->def_multi = true;
370 }
371 if (k->defmgmt)
372 k->def_multi = true;
373
b9454e83
JB		 374 if (tb[NL80211_KEY_IDX])
375 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
376
377 if (tb[NL80211_KEY_DATA]) {
378 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
379 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
380 }
381
382 if (tb[NL80211_KEY_SEQ]) {
383 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
384 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
385 }
386
387 if (tb[NL80211_KEY_CIPHER])
388 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
389
e31b8213
JB		 390 if (tb[NL80211_KEY_TYPE]) {
391 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
392 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
393 return -EINVAL;
394 }
395
dbd2fd65
JB		 396 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
397 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
398 int err = nla_parse_nested(kdt,
399 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
400 tb[NL80211_KEY_DEFAULT_TYPES],
401 nl80211_key_default_policy);
402 if (err)
403 return err;
404
405 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
406 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
407 }
408
b9454e83
JB		 409 return 0;
410}
411
412static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
413{
414 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
415 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
416 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
417 }
418
419 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
420 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
421 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
422 }
423
424 if (info->attrs[NL80211_ATTR_KEY_IDX])
425 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
426
427 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
428 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
429
430 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
431 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
432
dbd2fd65
JB		 433 if (k->def) {
434 k->def_uni = true;
435 k->def_multi = true;
436 }
437 if (k->defmgmt)
438 k->def_multi = true;
439
e31b8213
JB		 440 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
441 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
442 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
443 return -EINVAL;
444 }
445
dbd2fd65
JB		 446 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
447 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
448 int err = nla_parse_nested(
449 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
450 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
451 nl80211_key_default_policy);
452 if (err)
453 return err;
454
455 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
456 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
457 }
458
b9454e83
JB		 459 return 0;
460}
461
462static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
463{
464 int err;
465
466 memset(k, 0, sizeof(*k));
467 k->idx = -1;
e31b8213 468 k->type = -1;
b9454e83
JB		 469
470 if (info->attrs[NL80211_ATTR_KEY])
471 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
472 else
473 err = nl80211_parse_key_old(info, k);
474
475 if (err)
476 return err;
477
478 if (k->def && k->defmgmt)
479 return -EINVAL;
480
dbd2fd65
JB		 481 if (k->defmgmt) {
482 if (k->def_uni || !k->def_multi)
483 return -EINVAL;
484 }
485
b9454e83
JB		 486 if (k->idx != -1) {
487 if (k->defmgmt) {
488 if (k->idx < 4 || k->idx > 5)
489 return -EINVAL;
490 } else if (k->def) {
491 if (k->idx < 0 || k->idx > 3)
492 return -EINVAL;
493 } else {
494 if (k->idx < 0 || k->idx > 5)
495 return -EINVAL;
496 }
497 }
498
499 return 0;
500}
501
fffd0934
JB		 502static struct cfg80211_cached_keys *
503nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
504 struct nlattr *keys)
505{
506 struct key_parse parse;
507 struct nlattr *key;
508 struct cfg80211_cached_keys *result;
509 int rem, err, def = 0;
510
511 result = kzalloc(sizeof(*result), GFP_KERNEL);
512 if (!result)
513 return ERR_PTR(-ENOMEM);
514
515 result->def = -1;
516 result->defmgmt = -1;
517
518 nla_for_each_nested(key, keys, rem) {
519 memset(&parse, 0, sizeof(parse));
520 parse.idx = -1;
521
522 err = nl80211_parse_key_new(key, &parse);
523 if (err)
524 goto error;
525 err = -EINVAL;
526 if (!parse.p.key)
527 goto error;
528 if (parse.idx < 0 || parse.idx > 4)
529 goto error;
530 if (parse.def) {
531 if (def)
532 goto error;
533 def = 1;
534 result->def = parse.idx;
dbd2fd65
JB		 535 if (!parse.def_uni || !parse.def_multi)
536 goto error;
fffd0934
JB		 537 } else if (parse.defmgmt)
538 goto error;
539 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 540 parse.idx, false, NULL);
fffd0934
JB		 541 if (err)
542 goto error;
543 result->params[parse.idx].cipher = parse.p.cipher;
544 result->params[parse.idx].key_len = parse.p.key_len;
545 result->params[parse.idx].key = result->data[parse.idx];
546 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
547 }
548
549 return result;
550 error:
551 kfree(result);
552 return ERR_PTR(err);
553}
554
555static int nl80211_key_allowed(struct wireless_dev *wdev)
556{
557 ASSERT_WDEV_LOCK(wdev);
558
fffd0934
JB		 559 switch (wdev->iftype) {
560 case NL80211_IFTYPE_AP:
561 case NL80211_IFTYPE_AP_VLAN:
074ac8df 562 case NL80211_IFTYPE_P2P_GO:
ff973af7 563 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 564 break;
565 case NL80211_IFTYPE_ADHOC:
566 if (!wdev->current_bss)
567 return -ENOLINK;
568 break;
569 case NL80211_IFTYPE_STATION:
074ac8df 570 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 571 if (wdev->sme_state != CFG80211_SME_CONNECTED)
572 return -ENOLINK;
573 break;
574 default:
575 return -EINVAL;
576 }
577
578 return 0;
579}
580
7527a782
JB		 581static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
582{
583 struct nlattr *nl_modes = nla_nest_start(msg, attr);
584 int i;
585
586 if (!nl_modes)
587 goto nla_put_failure;
588
589 i = 0;
590 while (ifmodes) {
591 if (ifmodes & 1)
592 NLA_PUT_FLAG(msg, i);
593 ifmodes >>= 1;
594 i++;
595 }
596
597 nla_nest_end(msg, nl_modes);
598 return 0;
599
600nla_put_failure:
601 return -ENOBUFS;
602}
603
604static int nl80211_put_iface_combinations(struct wiphy *wiphy,
605 struct sk_buff *msg)
606{
607 struct nlattr *nl_combis;
608 int i, j;
609
610 nl_combis = nla_nest_start(msg,
611 NL80211_ATTR_INTERFACE_COMBINATIONS);
612 if (!nl_combis)
613 goto nla_put_failure;
614
615 for (i = 0; i < wiphy->n_iface_combinations; i++) {
616 const struct ieee80211_iface_combination *c;
617 struct nlattr *nl_combi, *nl_limits;
618
619 c = &wiphy->iface_combinations[i];
620
621 nl_combi = nla_nest_start(msg, i + 1);
622 if (!nl_combi)
623 goto nla_put_failure;
624
625 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
626 if (!nl_limits)
627 goto nla_put_failure;
628
629 for (j = 0; j < c->n_limits; j++) {
630 struct nlattr *nl_limit;
631
632 nl_limit = nla_nest_start(msg, j + 1);
633 if (!nl_limit)
634 goto nla_put_failure;
635 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
636 c->limits[j].max);
637 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
638 c->limits[j].types))
639 goto nla_put_failure;
640 nla_nest_end(msg, nl_limit);
641 }
642
643 nla_nest_end(msg, nl_limits);
644
645 if (c->beacon_int_infra_match)
646 NLA_PUT_FLAG(msg,
647 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
648 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
649 c->num_different_channels);
650 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
651 c->max_interfaces);
652
653 nla_nest_end(msg, nl_combi);
654 }
655
656 nla_nest_end(msg, nl_combis);
657
658 return 0;
659nla_put_failure:
660 return -ENOBUFS;
661}
662
55682965
JB		 663static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
664 struct cfg80211_registered_device *dev)
665{
666 void *hdr;
ee688b00
JB		 667 struct nlattr *nl_bands, *nl_band;
668 struct nlattr *nl_freqs, *nl_freq;
669 struct nlattr *nl_rates, *nl_rate;
8fdc621d 670 struct nlattr *nl_cmds;
ee688b00
JB		 671 enum ieee80211_band band;
672 struct ieee80211_channel *chan;
673 struct ieee80211_rate *rate;
674 int i;
2e161f78
JB		 675 const struct ieee80211_txrx_stypes *mgmt_stypes =
676 dev->wiphy.mgmt_stypes;
55682965
JB		 677
678 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
679 if (!hdr)
680 return -1;
681
b5850a7a 682 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 683 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 684
f5ea9120
JB		 685 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
686 cfg80211_rdev_list_generation);
687
b9a5f8ca
JM		 688 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
689 dev->wiphy.retry_short);
690 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
691 dev->wiphy.retry_long);
692 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
693 dev->wiphy.frag_threshold);
694 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
695 dev->wiphy.rts_threshold);
81077e82
LT		 696 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
697 dev->wiphy.coverage_class);
2a519311
JB		 698 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
699 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 700 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
701 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 702 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
703 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 704 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
705 dev->wiphy.max_sched_scan_ie_len);
ee688b00 706
e31b8213
JB		 707 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
708 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 709 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
710 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
e31b8213 711
25e47c18
JB		 712 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
713 sizeof(u32) * dev->wiphy.n_cipher_suites,
714 dev->wiphy.cipher_suites);
715
67fbb16b
SO		 716 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
717 dev->wiphy.max_num_pmkids);
718
c0692b8f
JB		 719 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
720 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
721
39fd5de4
BR		 722 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
723 dev->wiphy.available_antennas_tx);
724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
725 dev->wiphy.available_antennas_rx);
726
7f531e03
BR		 727 if ((dev->wiphy.available_antennas_tx ||
728 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 729 u32 tx_ant = 0, rx_ant = 0;
730 int res;
731 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
732 if (!res) {
733 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
734 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
735 }
736 }
737
7527a782
JB		 738 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
739 dev->wiphy.interface_modes))
f59ac048
LR		 740 goto nla_put_failure;
741
ee688b00
JB		 742 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
743 if (!nl_bands)
744 goto nla_put_failure;
745
746 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
747 if (!dev->wiphy.bands[band])
748 continue;
749
750 nl_band = nla_nest_start(msg, band);
751 if (!nl_band)
752 goto nla_put_failure;
753
d51626df
JB		 754 /* add HT info */
755 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
756 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
757 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
758 &dev->wiphy.bands[band]->ht_cap.mcs);
759 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
760 dev->wiphy.bands[band]->ht_cap.cap);
761 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
762 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
763 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
764 dev->wiphy.bands[band]->ht_cap.ampdu_density);
765 }
766
ee688b00
JB		 767 /* add frequencies */
768 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
769 if (!nl_freqs)
770 goto nla_put_failure;
771
772 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
773 nl_freq = nla_nest_start(msg, i);
774 if (!nl_freq)
775 goto nla_put_failure;
776
777 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 778
779 if (nl80211_msg_put_channel(msg, chan))
780 goto nla_put_failure;
e2f367f2 781
ee688b00
JB		 782 nla_nest_end(msg, nl_freq);
783 }
784
785 nla_nest_end(msg, nl_freqs);
786
787 /* add bitrates */
788 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
789 if (!nl_rates)
790 goto nla_put_failure;
791
792 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
793 nl_rate = nla_nest_start(msg, i);
794 if (!nl_rate)
795 goto nla_put_failure;
796
797 rate = &dev->wiphy.bands[band]->bitrates[i];
798 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
799 rate->bitrate);
800 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
801 NLA_PUT_FLAG(msg,
802 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
803
804 nla_nest_end(msg, nl_rate);
805 }
806
807 nla_nest_end(msg, nl_rates);
808
809 nla_nest_end(msg, nl_band);
810 }
811 nla_nest_end(msg, nl_bands);
812
8fdc621d
JB		 813 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
814 if (!nl_cmds)
815 goto nla_put_failure;
816
817 i = 0;
818#define CMD(op, n) \
819 do { \
820 if (dev->ops->op) { \
821 i++; \
822 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
823 } \
824 } while (0)
825
826 CMD(add_virtual_intf, NEW_INTERFACE);
827 CMD(change_virtual_intf, SET_INTERFACE);
828 CMD(add_key, NEW_KEY);
829 CMD(add_beacon, NEW_BEACON);
830 CMD(add_station, NEW_STATION);
831 CMD(add_mpath, NEW_MPATH);
24bdd9f4 832 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 833 CMD(change_bss, SET_BSS);
636a5d36
JM		 834 CMD(auth, AUTHENTICATE);
835 CMD(assoc, ASSOCIATE);
836 CMD(deauth, DEAUTHENTICATE);
837 CMD(disassoc, DISASSOCIATE);
04a773ad 838 CMD(join_ibss, JOIN_IBSS);
29cbe68c 839 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 840 CMD(set_pmksa, SET_PMKSA);
841 CMD(del_pmksa, DEL_PMKSA);
842 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 843 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 844 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 845 CMD(mgmt_tx, FRAME);
f7ca38df 846 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 847 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 848 i++;
849 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
850 }
f444de05 851 CMD(set_channel, SET_CHANNEL);
e8347eba 852 CMD(set_wds_peer, SET_WDS_PEER);
807f8a8c
LC		 853 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
854 CMD(sched_scan_start, START_SCHED_SCAN);
8fdc621d
JB		 855
856#undef CMD
b23aa676 857
6829c878 858 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 859 i++;
860 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
861 }
862
6829c878 863 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 864 i++;
865 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
866 }
867
8fdc621d
JB		 868 nla_nest_end(msg, nl_cmds);
869
a293911d
JB		 870 if (dev->ops->remain_on_channel)
871 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
872 dev->wiphy.max_remain_on_channel_duration);
873
d2da5878 874 if (dev->ops->mgmt_tx_cancel_wait)
f7ca38df
JB		 875 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
876
2e161f78
JB		 877 if (mgmt_stypes) {
878 u16 stypes;
879 struct nlattr *nl_ftypes, *nl_ifs;
880 enum nl80211_iftype ift;
881
882 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
883 if (!nl_ifs)
884 goto nla_put_failure;
885
886 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
887 nl_ftypes = nla_nest_start(msg, ift);
888 if (!nl_ftypes)
889 goto nla_put_failure;
890 i = 0;
891 stypes = mgmt_stypes[ift].tx;
892 while (stypes) {
893 if (stypes & 1)
894 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
895 (i << 4) | IEEE80211_FTYPE_MGMT);
896 stypes >>= 1;
897 i++;
898 }
899 nla_nest_end(msg, nl_ftypes);
900 }
901
74b70a4e
JB		 902 nla_nest_end(msg, nl_ifs);
903
2e161f78
JB		 904 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
905 if (!nl_ifs)
906 goto nla_put_failure;
907
908 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
909 nl_ftypes = nla_nest_start(msg, ift);
910 if (!nl_ftypes)
911 goto nla_put_failure;
912 i = 0;
913 stypes = mgmt_stypes[ift].rx;
914 while (stypes) {
915 if (stypes & 1)
916 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
917 (i << 4) | IEEE80211_FTYPE_MGMT);
918 stypes >>= 1;
919 i++;
920 }
921 nla_nest_end(msg, nl_ftypes);
922 }
923 nla_nest_end(msg, nl_ifs);
924 }
925
ff1b6e69
JB		 926 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
927 struct nlattr *nl_wowlan;
928
929 nl_wowlan = nla_nest_start(msg,
930 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
931 if (!nl_wowlan)
932 goto nla_put_failure;
933
934 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
935 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
936 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
937 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
938 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
939 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 940 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
941 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
942 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
943 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
944 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
945 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
946 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
947 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
948 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
949 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 950 if (dev->wiphy.wowlan.n_patterns) {
951 struct nl80211_wowlan_pattern_support pat = {
952 .max_patterns = dev->wiphy.wowlan.n_patterns,
953 .min_pattern_len =
954 dev->wiphy.wowlan.pattern_min_len,
955 .max_pattern_len =
956 dev->wiphy.wowlan.pattern_max_len,
957 };
958 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
959 sizeof(pat), &pat);
960 }
961
962 nla_nest_end(msg, nl_wowlan);
963 }
964
7527a782
JB		 965 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
966 dev->wiphy.software_iftypes))
967 goto nla_put_failure;
968
969 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
970 goto nla_put_failure;
971
55682965
JB		 972 return genlmsg_end(msg, hdr);
973
974 nla_put_failure:
bc3ed28c
TG		 975 genlmsg_cancel(msg, hdr);
976 return -EMSGSIZE;
55682965
JB		 977}
978
979static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
980{
981 int idx = 0;
982 int start = cb->args[0];
983 struct cfg80211_registered_device *dev;
984
a1794390 985 mutex_lock(&cfg80211_mutex);
79c97e97 986 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 987 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
988 continue;
b4637271 989 if (++idx <= start)
55682965
JB		 990 continue;
991 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
992 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 993 dev) < 0) {
994 idx--;
55682965 995 break;
b4637271 996 }
55682965 997 }
a1794390 998 mutex_unlock(&cfg80211_mutex);
55682965
JB		 999
1000 cb->args[0] = idx;
1001
1002 return skb->len;
1003}
1004
1005static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1006{
1007 struct sk_buff *msg;
4c476991 1008 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1009
fd2120ca 1010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1011 if (!msg)
4c476991 1012 return -ENOMEM;
55682965 1013
4c476991
JB		 1014 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1015 nlmsg_free(msg);
1016 return -ENOBUFS;
1017 }
55682965 1018
134e6375 1019 return genlmsg_reply(msg, info);
55682965
JB		 1020}
1021
31888487
JM		 1022static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1023 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1024 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1025 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1026 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1027 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1028};
1029
1030static int parse_txq_params(struct nlattr *tb[],
1031 struct ieee80211_txq_params *txq_params)
1032{
1033 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1034 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1035 !tb[NL80211_TXQ_ATTR_AIFS])
1036 return -EINVAL;
1037
1038 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1039 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1040 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1041 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1042 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1043
1044 return 0;
1045}
1046
f444de05
JB		 1047static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1048{
1049 /*
1050 * You can only set the channel explicitly for AP, mesh
1051 * and WDS type interfaces; all others have their channel
1052 * managed via their respective "establish a connection"
1053 * command (connect, join, ...)
1054 *
1055 * Monitors are special as they are normally slaved to
1056 * whatever else is going on, so they behave as though
1057 * you tried setting the wiphy channel itself.
1058 */
1059 return !wdev ||
1060 wdev->iftype == NL80211_IFTYPE_AP ||
1061 wdev->iftype == NL80211_IFTYPE_WDS ||
1062 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1063 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1064 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1065}
1066
1067static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1068 struct wireless_dev *wdev,
1069 struct genl_info *info)
1070{
1071 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1072 u32 freq;
1073 int result;
1074
1075 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1076 return -EINVAL;
1077
1078 if (!nl80211_can_set_dev_channel(wdev))
1079 return -EOPNOTSUPP;
1080
1081 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1082 channel_type = nla_get_u32(info->attrs[
1083 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1084 if (channel_type != NL80211_CHAN_NO_HT &&
1085 channel_type != NL80211_CHAN_HT20 &&
1086 channel_type != NL80211_CHAN_HT40PLUS &&
1087 channel_type != NL80211_CHAN_HT40MINUS)
1088 return -EINVAL;
1089 }
1090
1091 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1092
1093 mutex_lock(&rdev->devlist_mtx);
1094 if (wdev) {
1095 wdev_lock(wdev);
1096 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1097 wdev_unlock(wdev);
1098 } else {
1099 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1100 }
1101 mutex_unlock(&rdev->devlist_mtx);
1102
1103 return result;
1104}
1105
1106static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1107{
4c476991
JB		 1108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1109 struct net_device *netdev = info->user_ptr[1];
f444de05 1110
4c476991 1111 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1112}
1113
e8347eba
BJ		 1114static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1115{
43b19952
JB		 1116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1117 struct net_device *dev = info->user_ptr[1];
1118 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1119 const u8 *bssid;
e8347eba
BJ		 1120
1121 if (!info->attrs[NL80211_ATTR_MAC])
1122 return -EINVAL;
1123
43b19952
JB		 1124 if (netif_running(dev))
1125 return -EBUSY;
e8347eba 1126
43b19952
JB		 1127 if (!rdev->ops->set_wds_peer)
1128 return -EOPNOTSUPP;
e8347eba 1129
43b19952
JB		 1130 if (wdev->iftype != NL80211_IFTYPE_WDS)
1131 return -EOPNOTSUPP;
e8347eba
BJ		 1132
1133 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1134 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1135}
1136
1137
55682965
JB		 1138static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1139{
1140 struct cfg80211_registered_device *rdev;
f444de05
JB		 1141 struct net_device *netdev = NULL;
1142 struct wireless_dev *wdev;
a1e567c8 1143 int result = 0, rem_txq_params = 0;
31888487 1144 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1145 u32 changed;
1146 u8 retry_short = 0, retry_long = 0;
1147 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1148 u8 coverage_class = 0;
55682965 1149
f444de05
JB		 1150 /*
1151 * Try to find the wiphy and netdev. Normally this
1152 * function shouldn't need the netdev, but this is
1153 * done for backward compatibility -- previously
1154 * setting the channel was done per wiphy, but now
1155 * it is per netdev. Previous userland like hostapd
1156 * also passed a netdev to set_wiphy, so that it is
1157 * possible to let that go to the right netdev!
1158 */
4bbf4d56
JB		 1159 mutex_lock(&cfg80211_mutex);
1160
f444de05
JB		 1161 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1162 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1163
1164 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1165 if (netdev && netdev->ieee80211_ptr) {
1166 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1167 mutex_lock(&rdev->mtx);
1168 } else
1169 netdev = NULL;
4bbf4d56
JB		 1170 }
1171
f444de05
JB		 1172 if (!netdev) {
1173 rdev = __cfg80211_rdev_from_info(info);
1174 if (IS_ERR(rdev)) {
1175 mutex_unlock(&cfg80211_mutex);
4c476991 1176 return PTR_ERR(rdev);
f444de05
JB		 1177 }
1178 wdev = NULL;
1179 netdev = NULL;
1180 result = 0;
1181
1182 mutex_lock(&rdev->mtx);
1183 } else if (netif_running(netdev) &&
1184 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1185 wdev = netdev->ieee80211_ptr;
1186 else
1187 wdev = NULL;
1188
1189 /*
1190 * end workaround code, by now the rdev is available
1191 * and locked, and wdev may or may not be NULL.
1192 */
4bbf4d56
JB		 1193
1194 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1195 result = cfg80211_dev_rename(
1196 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1197
1198 mutex_unlock(&cfg80211_mutex);
1199
1200 if (result)
1201 goto bad_res;
31888487
JM		 1202
1203 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1204 struct ieee80211_txq_params txq_params;
1205 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1206
1207 if (!rdev->ops->set_txq_params) {
1208 result = -EOPNOTSUPP;
1209 goto bad_res;
1210 }
1211
1212 nla_for_each_nested(nl_txq_params,
1213 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1214 rem_txq_params) {
1215 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1216 nla_data(nl_txq_params),
1217 nla_len(nl_txq_params),
1218 txq_params_policy);
1219 result = parse_txq_params(tb, &txq_params);
1220 if (result)
1221 goto bad_res;
1222
1223 result = rdev->ops->set_txq_params(&rdev->wiphy,
1224 &txq_params);
1225 if (result)
1226 goto bad_res;
1227 }
1228 }
55682965 1229
72bdcf34 1230 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1231 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1232 if (result)
1233 goto bad_res;
1234 }
1235
98d2ff8b
JO		 1236 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1237 enum nl80211_tx_power_setting type;
1238 int idx, mbm = 0;
1239
1240 if (!rdev->ops->set_tx_power) {
60ea385f 1241 result = -EOPNOTSUPP;
98d2ff8b
JO		 1242 goto bad_res;
1243 }
1244
1245 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1246 type = nla_get_u32(info->attrs[idx]);
1247
1248 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1249 (type != NL80211_TX_POWER_AUTOMATIC)) {
1250 result = -EINVAL;
1251 goto bad_res;
1252 }
1253
1254 if (type != NL80211_TX_POWER_AUTOMATIC) {
1255 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1256 mbm = nla_get_u32(info->attrs[idx]);
1257 }
1258
1259 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1260 if (result)
1261 goto bad_res;
1262 }
1263
afe0cbf8
BR		 1264 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1265 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1266 u32 tx_ant, rx_ant;
7f531e03
BR		 1267 if ((!rdev->wiphy.available_antennas_tx &&
1268 !rdev->wiphy.available_antennas_rx) ||
1269 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1270 result = -EOPNOTSUPP;
1271 goto bad_res;
1272 }
1273
1274 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1275 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1276
a7ffac95 1277 /* reject antenna configurations which don't match the
7f531e03
BR		 1278 * available antenna masks, except for the "all" mask */
1279 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1280 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1281 result = -EINVAL;
1282 goto bad_res;
1283 }
1284
7f531e03
BR		 1285 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1286 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1287
afe0cbf8
BR		 1288 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1289 if (result)
1290 goto bad_res;
1291 }
1292
b9a5f8ca
JM		 1293 changed = 0;
1294
1295 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1296 retry_short = nla_get_u8(
1297 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1298 if (retry_short == 0) {
1299 result = -EINVAL;
1300 goto bad_res;
1301 }
1302 changed |= WIPHY_PARAM_RETRY_SHORT;
1303 }
1304
1305 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1306 retry_long = nla_get_u8(
1307 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1308 if (retry_long == 0) {
1309 result = -EINVAL;
1310 goto bad_res;
1311 }
1312 changed |= WIPHY_PARAM_RETRY_LONG;
1313 }
1314
1315 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1316 frag_threshold = nla_get_u32(
1317 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1318 if (frag_threshold < 256) {
1319 result = -EINVAL;
1320 goto bad_res;
1321 }
1322 if (frag_threshold != (u32) -1) {
1323 /*
1324 * Fragments (apart from the last one) are required to
1325 * have even length. Make the fragmentation code
1326 * simpler by stripping LSB should someone try to use
1327 * odd threshold value.
1328 */
1329 frag_threshold &= ~0x1;
1330 }
1331 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1332 }
1333
1334 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1335 rts_threshold = nla_get_u32(
1336 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1337 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1338 }
1339
81077e82
LT		 1340 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1341 coverage_class = nla_get_u8(
1342 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1343 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1344 }
1345
b9a5f8ca
JM		 1346 if (changed) {
1347 u8 old_retry_short, old_retry_long;
1348 u32 old_frag_threshold, old_rts_threshold;
81077e82 1349 u8 old_coverage_class;
b9a5f8ca
JM		 1350
1351 if (!rdev->ops->set_wiphy_params) {
1352 result = -EOPNOTSUPP;
1353 goto bad_res;
1354 }
1355
1356 old_retry_short = rdev->wiphy.retry_short;
1357 old_retry_long = rdev->wiphy.retry_long;
1358 old_frag_threshold = rdev->wiphy.frag_threshold;
1359 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1360 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1361
1362 if (changed & WIPHY_PARAM_RETRY_SHORT)
1363 rdev->wiphy.retry_short = retry_short;
1364 if (changed & WIPHY_PARAM_RETRY_LONG)
1365 rdev->wiphy.retry_long = retry_long;
1366 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1367 rdev->wiphy.frag_threshold = frag_threshold;
1368 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1369 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1370 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1371 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1372
1373 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1374 if (result) {
1375 rdev->wiphy.retry_short = old_retry_short;
1376 rdev->wiphy.retry_long = old_retry_long;
1377 rdev->wiphy.frag_threshold = old_frag_threshold;
1378 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1379 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1380 }
1381 }
72bdcf34 1382
306d6112 1383 bad_res:
4bbf4d56 1384 mutex_unlock(&rdev->mtx);
f444de05
JB		 1385 if (netdev)
1386 dev_put(netdev);
55682965
JB		 1387 return result;
1388}
1389
1390
1391static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1392 struct cfg80211_registered_device *rdev,
55682965
JB		 1393 struct net_device *dev)
1394{
1395 void *hdr;
1396
1397 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1398 if (!hdr)
1399 return -1;
1400
1401 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1402 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1403 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1404 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1405
1406 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1407 rdev->devlist_generation ^
1408 (cfg80211_rdev_list_generation << 2));
1409
55682965
JB		 1410 return genlmsg_end(msg, hdr);
1411
1412 nla_put_failure:
bc3ed28c
TG		 1413 genlmsg_cancel(msg, hdr);
1414 return -EMSGSIZE;
55682965
JB		 1415}
1416
1417static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1418{
1419 int wp_idx = 0;
1420 int if_idx = 0;
1421 int wp_start = cb->args[0];
1422 int if_start = cb->args[1];
f5ea9120 1423 struct cfg80211_registered_device *rdev;
55682965
JB		 1424 struct wireless_dev *wdev;
1425
a1794390 1426 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1427 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1428 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1429 continue;
bba95fef
JB		 1430 if (wp_idx < wp_start) {
1431 wp_idx++;
55682965 1432 continue;
bba95fef 1433 }
55682965
JB		 1434 if_idx = 0;
1435
f5ea9120
JB		 1436 mutex_lock(&rdev->devlist_mtx);
1437 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1438 if (if_idx < if_start) {
1439 if_idx++;
55682965 1440 continue;
bba95fef 1441 }
55682965
JB		 1442 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1443 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1444 rdev, wdev->netdev) < 0) {
1445 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1446 goto out;
1447 }
1448 if_idx++;
55682965 1449 }
f5ea9120 1450 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1451
1452 wp_idx++;
55682965 1453 }
bba95fef 1454 out:
a1794390 1455 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1456
1457 cb->args[0] = wp_idx;
1458 cb->args[1] = if_idx;
1459
1460 return skb->len;
1461}
1462
1463static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1464{
1465 struct sk_buff *msg;
4c476991
JB		 1466 struct cfg80211_registered_device *dev = info->user_ptr[0];
1467 struct net_device *netdev = info->user_ptr[1];
55682965 1468
fd2120ca 1469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1470 if (!msg)
4c476991 1471 return -ENOMEM;
55682965 1472
d726405a 1473 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1474 dev, netdev) < 0) {
1475 nlmsg_free(msg);
1476 return -ENOBUFS;
1477 }
55682965 1478
134e6375 1479 return genlmsg_reply(msg, info);
55682965
JB		 1480}
1481
66f7ac50
MW		 1482static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1483 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1484 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1485 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1486 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1487 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1488};
1489
1490static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1491{
1492 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1493 int flag;
1494
1495 *mntrflags = 0;
1496
1497 if (!nla)
1498 return -EINVAL;
1499
1500 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1501 nla, mntr_flags_policy))
1502 return -EINVAL;
1503
1504 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1505 if (flags[flag])
1506 *mntrflags |= (1<<flag);
1507
1508 return 0;
1509}
1510
9bc383de 1511static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1512 struct net_device *netdev, u8 use_4addr,
1513 enum nl80211_iftype iftype)
9bc383de 1514{
ad4bb6f8 1515 if (!use_4addr) {
f350a0a8 1516 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1517 return -EBUSY;
9bc383de 1518 return 0;
ad4bb6f8 1519 }
9bc383de
JB		 1520
1521 switch (iftype) {
1522 case NL80211_IFTYPE_AP_VLAN:
1523 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1524 return 0;
1525 break;
1526 case NL80211_IFTYPE_STATION:
1527 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1528 return 0;
1529 break;
1530 default:
1531 break;
1532 }
1533
1534 return -EOPNOTSUPP;
1535}
1536
55682965
JB		 1537static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1538{
4c476991 1539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1540 struct vif_params params;
e36d56b6 1541 int err;
04a773ad 1542 enum nl80211_iftype otype, ntype;
4c476991 1543 struct net_device *dev = info->user_ptr[1];
92ffe055 1544 u32 _flags, *flags = NULL;
ac7f9cfa 1545 bool change = false;
55682965 1546
2ec600d6
LCC		 1547 memset(&params, 0, sizeof(params));
1548
04a773ad 1549 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1550
723b038d 1551 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1552 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1553 if (otype != ntype)
ac7f9cfa 1554 change = true;
4c476991
JB		 1555 if (ntype > NL80211_IFTYPE_MAX)
1556 return -EINVAL;
723b038d
JB		 1557 }
1558
92ffe055 1559 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1560 struct wireless_dev *wdev = dev->ieee80211_ptr;
1561
4c476991
JB		 1562 if (ntype != NL80211_IFTYPE_MESH_POINT)
1563 return -EINVAL;
29cbe68c
JB		 1564 if (netif_running(dev))
1565 return -EBUSY;
1566
1567 wdev_lock(wdev);
1568 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1569 IEEE80211_MAX_MESH_ID_LEN);
1570 wdev->mesh_id_up_len =
1571 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1572 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1573 wdev->mesh_id_up_len);
1574 wdev_unlock(wdev);
2ec600d6
LCC		 1575 }
1576
8b787643
FF		 1577 if (info->attrs[NL80211_ATTR_4ADDR]) {
1578 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1579 change = true;
ad4bb6f8 1580 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1581 if (err)
4c476991 1582 return err;
8b787643
FF		 1583 } else {
1584 params.use_4addr = -1;
1585 }
1586
92ffe055 1587 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1588 if (ntype != NL80211_IFTYPE_MONITOR)
1589 return -EINVAL;
92ffe055
JB		 1590 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1591 &_flags);
ac7f9cfa 1592 if (err)
4c476991 1593 return err;
ac7f9cfa
JB		 1594
1595 flags = &_flags;
1596 change = true;
92ffe055 1597 }
3b85875a 1598
ac7f9cfa 1599 if (change)
3d54d255 1600 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1601 else
1602 err = 0;
60719ffd 1603
9bc383de
JB		 1604 if (!err && params.use_4addr != -1)
1605 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1606
55682965
JB		 1607 return err;
1608}
1609
1610static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1611{
4c476991 1612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1613 struct vif_params params;
f9e10ce4 1614 struct net_device *dev;
55682965
JB		 1615 int err;
1616 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1617 u32 flags;
55682965 1618
2ec600d6
LCC		 1619 memset(&params, 0, sizeof(params));
1620
55682965
JB		 1621 if (!info->attrs[NL80211_ATTR_IFNAME])
1622 return -EINVAL;
1623
1624 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1625 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1626 if (type > NL80211_IFTYPE_MAX)
1627 return -EINVAL;
1628 }
1629
79c97e97 1630 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1631 !(rdev->wiphy.interface_modes & (1 << type)))
1632 return -EOPNOTSUPP;
55682965 1633
9bc383de 1634 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1635 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1636 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1637 if (err)
4c476991 1638 return err;
9bc383de 1639 }
8b787643 1640
66f7ac50
MW		 1641 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1642 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1643 &flags);
f9e10ce4 1644 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1645 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1646 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1647 if (IS_ERR(dev))
1648 return PTR_ERR(dev);
2ec600d6 1649
29cbe68c
JB		 1650 if (type == NL80211_IFTYPE_MESH_POINT &&
1651 info->attrs[NL80211_ATTR_MESH_ID]) {
1652 struct wireless_dev *wdev = dev->ieee80211_ptr;
1653
1654 wdev_lock(wdev);
1655 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1656 IEEE80211_MAX_MESH_ID_LEN);
1657 wdev->mesh_id_up_len =
1658 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1659 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1660 wdev->mesh_id_up_len);
1661 wdev_unlock(wdev);
1662 }
1663
f9e10ce4 1664 return 0;
55682965
JB		 1665}
1666
1667static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1668{
4c476991
JB		 1669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1670 struct net_device *dev = info->user_ptr[1];
55682965 1671
4c476991
JB		 1672 if (!rdev->ops->del_virtual_intf)
1673 return -EOPNOTSUPP;
55682965 1674
4c476991 1675 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1676}
1677
41ade00f
JB		 1678struct get_key_cookie {
1679 struct sk_buff *msg;
1680 int error;
b9454e83 1681 int idx;
41ade00f
JB		 1682};
1683
1684static void get_key_callback(void *c, struct key_params *params)
1685{
b9454e83 1686 struct nlattr *key;
41ade00f
JB		 1687 struct get_key_cookie *cookie = c;
1688
1689 if (params->key)
1690 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1691 params->key_len, params->key);
1692
1693 if (params->seq)
1694 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1695 params->seq_len, params->seq);
1696
1697 if (params->cipher)
1698 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1699 params->cipher);
1700
b9454e83
JB		 1701 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1702 if (!key)
1703 goto nla_put_failure;
1704
1705 if (params->key)
1706 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1707 params->key_len, params->key);
1708
1709 if (params->seq)
1710 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1711 params->seq_len, params->seq);
1712
1713 if (params->cipher)
1714 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1715 params->cipher);
1716
1717 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1718
1719 nla_nest_end(cookie->msg, key);
1720
41ade00f
JB		 1721 return;
1722 nla_put_failure:
1723 cookie->error = 1;
1724}
1725
1726static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1727{
4c476991 1728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1729 int err;
4c476991 1730 struct net_device *dev = info->user_ptr[1];
41ade00f 1731 u8 key_idx = 0;
e31b8213
JB		 1732 const u8 *mac_addr = NULL;
1733 bool pairwise;
41ade00f
JB		 1734 struct get_key_cookie cookie = {
1735 .error = 0,
1736 };
1737 void *hdr;
1738 struct sk_buff *msg;
1739
1740 if (info->attrs[NL80211_ATTR_KEY_IDX])
1741 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1742
3cfcf6ac 1743 if (key_idx > 5)
41ade00f
JB		 1744 return -EINVAL;
1745
1746 if (info->attrs[NL80211_ATTR_MAC])
1747 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1748
e31b8213
JB		 1749 pairwise = !!mac_addr;
1750 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1751 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1752 if (kt >= NUM_NL80211_KEYTYPES)
1753 return -EINVAL;
1754 if (kt != NL80211_KEYTYPE_GROUP &&
1755 kt != NL80211_KEYTYPE_PAIRWISE)
1756 return -EINVAL;
1757 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1758 }
1759
4c476991
JB		 1760 if (!rdev->ops->get_key)
1761 return -EOPNOTSUPP;
41ade00f 1762
fd2120ca 1763 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1764 if (!msg)
1765 return -ENOMEM;
41ade00f
JB		 1766
1767 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1768 NL80211_CMD_NEW_KEY);
4c476991
JB		 1769 if (IS_ERR(hdr))
1770 return PTR_ERR(hdr);
41ade00f
JB		 1771
1772 cookie.msg = msg;
b9454e83 1773 cookie.idx = key_idx;
41ade00f
JB		 1774
1775 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1776 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1777 if (mac_addr)
1778 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1779
e31b8213
JB		 1780 if (pairwise && mac_addr &&
1781 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1782 return -ENOENT;
1783
1784 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1785 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1786
1787 if (err)
6c95e2a2 1788 goto free_msg;
41ade00f
JB		 1789
1790 if (cookie.error)
1791 goto nla_put_failure;
1792
1793 genlmsg_end(msg, hdr);
4c476991 1794 return genlmsg_reply(msg, info);
41ade00f
JB		 1795
1796 nla_put_failure:
1797 err = -ENOBUFS;
6c95e2a2 1798 free_msg:
41ade00f 1799 nlmsg_free(msg);
41ade00f
JB		 1800 return err;
1801}
1802
1803static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1804{
4c476991 1805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1806 struct key_parse key;
41ade00f 1807 int err;
4c476991 1808 struct net_device *dev = info->user_ptr[1];
41ade00f 1809
b9454e83
JB		 1810 err = nl80211_parse_key(info, &key);
1811 if (err)
1812 return err;
41ade00f 1813
b9454e83 1814 if (key.idx < 0)
41ade00f
JB		 1815 return -EINVAL;
1816
b9454e83
JB		 1817 /* only support setting default key */
1818 if (!key.def && !key.defmgmt)
41ade00f
JB		 1819 return -EINVAL;
1820
dbd2fd65 1821 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1822
dbd2fd65
JB		 1823 if (key.def) {
1824 if (!rdev->ops->set_default_key) {
1825 err = -EOPNOTSUPP;
1826 goto out;
1827 }
41ade00f 1828
dbd2fd65
JB		 1829 err = nl80211_key_allowed(dev->ieee80211_ptr);
1830 if (err)
1831 goto out;
1832
dbd2fd65
JB		 1833 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1834 key.def_uni, key.def_multi);
1835
1836 if (err)
1837 goto out;
fffd0934 1838
3d23e349 1839#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1840 dev->ieee80211_ptr->wext.default_key = key.idx;
1841#endif
1842 } else {
1843 if (key.def_uni || !key.def_multi) {
1844 err = -EINVAL;
1845 goto out;
1846 }
1847
1848 if (!rdev->ops->set_default_mgmt_key) {
1849 err = -EOPNOTSUPP;
1850 goto out;
1851 }
1852
1853 err = nl80211_key_allowed(dev->ieee80211_ptr);
1854 if (err)
1855 goto out;
1856
1857 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1858 dev, key.idx);
1859 if (err)
1860 goto out;
1861
1862#ifdef CONFIG_CFG80211_WEXT
1863 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1864#endif
dbd2fd65
JB		 1865 }
1866
1867 out:
fffd0934 1868 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1869
41ade00f
JB		 1870 return err;
1871}
1872
1873static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1874{
4c476991 1875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1876 int err;
4c476991 1877 struct net_device *dev = info->user_ptr[1];
b9454e83 1878 struct key_parse key;
e31b8213 1879 const u8 *mac_addr = NULL;
41ade00f 1880
b9454e83
JB		 1881 err = nl80211_parse_key(info, &key);
1882 if (err)
1883 return err;
41ade00f 1884
b9454e83 1885 if (!key.p.key)
41ade00f
JB		 1886 return -EINVAL;
1887
41ade00f
JB		 1888 if (info->attrs[NL80211_ATTR_MAC])
1889 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1890
e31b8213
JB		 1891 if (key.type == -1) {
1892 if (mac_addr)
1893 key.type = NL80211_KEYTYPE_PAIRWISE;
1894 else
1895 key.type = NL80211_KEYTYPE_GROUP;
1896 }
1897
1898 /* for now */
1899 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1900 key.type != NL80211_KEYTYPE_GROUP)
1901 return -EINVAL;
1902
4c476991
JB		 1903 if (!rdev->ops->add_key)
1904 return -EOPNOTSUPP;
25e47c18 1905
e31b8213
JB		 1906 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1907 key.type == NL80211_KEYTYPE_PAIRWISE,
1908 mac_addr))
4c476991 1909 return -EINVAL;
41ade00f 1910
fffd0934
JB		 1911 wdev_lock(dev->ieee80211_ptr);
1912 err = nl80211_key_allowed(dev->ieee80211_ptr);
1913 if (!err)
1914 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1915 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1916 mac_addr, &key.p);
1917 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1918
41ade00f
JB		 1919 return err;
1920}
1921
1922static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1923{
4c476991 1924 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1925 int err;
4c476991 1926 struct net_device *dev = info->user_ptr[1];
41ade00f 1927 u8 *mac_addr = NULL;
b9454e83 1928 struct key_parse key;
41ade00f 1929
b9454e83
JB		 1930 err = nl80211_parse_key(info, &key);
1931 if (err)
1932 return err;
41ade00f
JB		 1933
1934 if (info->attrs[NL80211_ATTR_MAC])
1935 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1936
e31b8213
JB		 1937 if (key.type == -1) {
1938 if (mac_addr)
1939 key.type = NL80211_KEYTYPE_PAIRWISE;
1940 else
1941 key.type = NL80211_KEYTYPE_GROUP;
1942 }
1943
1944 /* for now */
1945 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1946 key.type != NL80211_KEYTYPE_GROUP)
1947 return -EINVAL;
1948
4c476991
JB		 1949 if (!rdev->ops->del_key)
1950 return -EOPNOTSUPP;
41ade00f 1951
fffd0934
JB		 1952 wdev_lock(dev->ieee80211_ptr);
1953 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1954
1955 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1956 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1957 err = -ENOENT;
1958
fffd0934 1959 if (!err)
e31b8213
JB		 1960 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1961 key.type == NL80211_KEYTYPE_PAIRWISE,
1962 mac_addr);
41ade00f 1963
3d23e349 1964#ifdef CONFIG_CFG80211_WEXT
08645126 1965 if (!err) {
b9454e83 1966 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1967 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1968 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1969 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1970 }
1971#endif
fffd0934 1972 wdev_unlock(dev->ieee80211_ptr);
08645126 1973
41ade00f
JB		 1974 return err;
1975}
1976
ed1b6cc7
JB		 1977static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1978{
1979 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1980 struct beacon_parameters *info);
4c476991
JB		 1981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1982 struct net_device *dev = info->user_ptr[1];
56d1893d 1983 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 1984 struct beacon_parameters params;
56d1893d 1985 int haveinfo = 0, err;
ed1b6cc7 1986
f4a11bb0
JB		 1987 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1988 return -EINVAL;
1989
074ac8df 1990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1991 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1992 return -EOPNOTSUPP;
eec60b03 1993
56d1893d
JB		 1994 memset(&params, 0, sizeof(params));
1995
ed1b6cc7
JB		 1996 switch (info->genlhdr->cmd) {
1997 case NL80211_CMD_NEW_BEACON:
1998 /* these are required for NEW_BEACON */
1999 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2000 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2001 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2002 return -EINVAL;
ed1b6cc7 2003
56d1893d
JB		 2004 params.interval =
2005 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2006 params.dtim_period =
2007 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2008
2009 err = cfg80211_validate_beacon_int(rdev, params.interval);
2010 if (err)
2011 return err;
2012
79c97e97 2013 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2014 break;
2015 case NL80211_CMD_SET_BEACON:
79c97e97 2016 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2017 break;
2018 default:
2019 WARN_ON(1);
4c476991 2020 return -EOPNOTSUPP;
ed1b6cc7
JB		 2021 }
2022
4c476991
JB		 2023 if (!call)
2024 return -EOPNOTSUPP;
ed1b6cc7 2025
ed1b6cc7
JB		 2026 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2027 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2028 params.head_len =
2029 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2030 haveinfo = 1;
2031 }
2032
2033 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2034 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2035 params.tail_len =
2036 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2037 haveinfo = 1;
2038 }
2039
4c476991
JB		 2040 if (!haveinfo)
2041 return -EINVAL;
3b85875a 2042
56d1893d
JB		 2043 err = call(&rdev->wiphy, dev, &params);
2044 if (!err && params.interval)
2045 wdev->beacon_interval = params.interval;
2046 return err;
ed1b6cc7
JB		 2047}
2048
2049static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2050{
4c476991
JB		 2051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2052 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2053 struct wireless_dev *wdev = dev->ieee80211_ptr;
2054 int err;
ed1b6cc7 2055
4c476991
JB		 2056 if (!rdev->ops->del_beacon)
2057 return -EOPNOTSUPP;
ed1b6cc7 2058
074ac8df 2059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2061 return -EOPNOTSUPP;
3b85875a 2062
56d1893d
JB		 2063 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2064 if (!err)
2065 wdev->beacon_interval = 0;
2066 return err;
ed1b6cc7
JB		 2067}
2068
5727ef1b
JB		 2069static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2070 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2071 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2072 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2073 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2074 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2075};
2076
eccb8e8f
JB		 2077static int parse_station_flags(struct genl_info *info,
2078 struct station_parameters *params)
5727ef1b
JB		 2079{
2080 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2081 struct nlattr *nla;
5727ef1b
JB		 2082 int flag;
2083
eccb8e8f
JB		 2084 /*
2085 * Try parsing the new attribute first so userspace
2086 * can specify both for older kernels.
2087 */
2088 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2089 if (nla) {
2090 struct nl80211_sta_flag_update *sta_flags;
2091
2092 sta_flags = nla_data(nla);
2093 params->sta_flags_mask = sta_flags->mask;
2094 params->sta_flags_set = sta_flags->set;
2095 if ((params->sta_flags_mask |
2096 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2097 return -EINVAL;
2098 return 0;
2099 }
2100
2101 /* if present, parse the old attribute */
5727ef1b 2102
eccb8e8f 2103 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2104 if (!nla)
2105 return 0;
2106
2107 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2108 nla, sta_flags_policy))
2109 return -EINVAL;
2110
eccb8e8f
JB		 2111 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2112 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2113
2114 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2115 if (flags[flag])
eccb8e8f 2116 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2117
2118 return 0;
2119}
2120
c8dcfd8a
FF		 2121static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2122 int attr)
2123{
2124 struct nlattr *rate;
2125 u16 bitrate;
2126
2127 rate = nla_nest_start(msg, attr);
2128 if (!rate)
2129 goto nla_put_failure;
2130
2131 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2132 bitrate = cfg80211_calculate_bitrate(info);
2133 if (bitrate > 0)
2134 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2135
2136 if (info->flags & RATE_INFO_FLAGS_MCS)
2137 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2138 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2139 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2140 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2141 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2142
2143 nla_nest_end(msg, rate);
2144 return true;
2145
2146nla_put_failure:
2147 return false;
2148}
2149
fd5b74dc
JB		 2150static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2151 int flags, struct net_device *dev,
98b62183 2152 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2153{
2154 void *hdr;
f4263c98 2155 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2156
2157 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2158 if (!hdr)
2159 return -1;
2160
2161 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2162 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2163
f5ea9120
JB		 2164 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2165
2ec600d6
LCC		 2166 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2167 if (!sinfoattr)
fd5b74dc 2168 goto nla_put_failure;
ebe27c91
MSS		 2169 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2170 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2171 sinfo->connected_time);
2ec600d6
LCC		 2172 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2173 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2174 sinfo->inactive_time);
2175 if (sinfo->filled & STATION_INFO_RX_BYTES)
2176 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2177 sinfo->rx_bytes);
2178 if (sinfo->filled & STATION_INFO_TX_BYTES)
2179 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2180 sinfo->tx_bytes);
2181 if (sinfo->filled & STATION_INFO_LLID)
2182 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2183 sinfo->llid);
2184 if (sinfo->filled & STATION_INFO_PLID)
2185 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2186 sinfo->plid);
2187 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2188 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2189 sinfo->plink_state);
420e7fab
HR		 2190 if (sinfo->filled & STATION_INFO_SIGNAL)
2191 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2192 sinfo->signal);
541a45a1
BR		 2193 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2194 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2195 sinfo->signal_avg);
420e7fab 2196 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2197 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2198 NL80211_STA_INFO_TX_BITRATE))
2199 goto nla_put_failure;
2200 }
2201 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2202 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2203 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2204 goto nla_put_failure;
420e7fab 2205 }
98c8a60a
JM		 2206 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2207 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2208 sinfo->rx_packets);
2209 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2210 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2211 sinfo->tx_packets);
b206b4ef
BR		 2212 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2213 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2214 sinfo->tx_retries);
2215 if (sinfo->filled & STATION_INFO_TX_FAILED)
2216 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2217 sinfo->tx_failed);
f4263c98
PS		 2218 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2219 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2220 if (!bss_param)
2221 goto nla_put_failure;
2222
2223 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2224 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2225 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2226 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2227 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2228 NLA_PUT_FLAG(msg,
2229 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2230 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2231 sinfo->bss_param.dtim_period);
2232 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2233 sinfo->bss_param.beacon_interval);
2234
2235 nla_nest_end(msg, bss_param);
2236 }
2ec600d6 2237 nla_nest_end(msg, sinfoattr);
fd5b74dc 2238
040bdf71 2239 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2240 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2241 sinfo->assoc_req_ies);
2242
fd5b74dc
JB		 2243 return genlmsg_end(msg, hdr);
2244
2245 nla_put_failure:
bc3ed28c
TG		 2246 genlmsg_cancel(msg, hdr);
2247 return -EMSGSIZE;
fd5b74dc
JB		 2248}
2249
2ec600d6 2250static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2251 struct netlink_callback *cb)
2ec600d6 2252{
2ec600d6
LCC		 2253 struct station_info sinfo;
2254 struct cfg80211_registered_device *dev;
bba95fef 2255 struct net_device *netdev;
2ec600d6 2256 u8 mac_addr[ETH_ALEN];
bba95fef 2257 int sta_idx = cb->args[1];
2ec600d6 2258 int err;
2ec600d6 2259
67748893
JB		 2260 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2261 if (err)
2262 return err;
bba95fef
JB		 2263
2264 if (!dev->ops->dump_station) {
eec60b03 2265 err = -EOPNOTSUPP;
bba95fef
JB		 2266 goto out_err;
2267 }
2268
bba95fef 2269 while (1) {
f612cedf 2270 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2271 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2272 mac_addr, &sinfo);
2273 if (err == -ENOENT)
2274 break;
2275 if (err)
3b85875a 2276 goto out_err;
bba95fef
JB		 2277
2278 if (nl80211_send_station(skb,
2279 NETLINK_CB(cb->skb).pid,
2280 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2281 netdev, mac_addr,
2282 &sinfo) < 0)
2283 goto out;
2284
2285 sta_idx++;
2286 }
2287
2288
2289 out:
2290 cb->args[1] = sta_idx;
2291 err = skb->len;
bba95fef 2292 out_err:
67748893 2293 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2294
2295 return err;
2ec600d6 2296}
fd5b74dc 2297
5727ef1b
JB		 2298static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2299{
4c476991
JB		 2300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2301 struct net_device *dev = info->user_ptr[1];
2ec600d6 2302 struct station_info sinfo;
fd5b74dc
JB		 2303 struct sk_buff *msg;
2304 u8 *mac_addr = NULL;
4c476991 2305 int err;
fd5b74dc 2306
2ec600d6 2307 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2308
2309 if (!info->attrs[NL80211_ATTR_MAC])
2310 return -EINVAL;
2311
2312 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2313
4c476991
JB		 2314 if (!rdev->ops->get_station)
2315 return -EOPNOTSUPP;
3b85875a 2316
4c476991 2317 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2318 if (err)
4c476991 2319 return err;
2ec600d6 2320
fd2120ca 2321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2322 if (!msg)
4c476991 2323 return -ENOMEM;
fd5b74dc
JB		 2324
2325 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2326 dev, mac_addr, &sinfo) < 0) {
2327 nlmsg_free(msg);
2328 return -ENOBUFS;
2329 }
3b85875a 2330
4c476991 2331 return genlmsg_reply(msg, info);
5727ef1b
JB		 2332}
2333
2334/*
c258d2de 2335 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2336 */
463d0183 2337static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2338 struct cfg80211_registered_device *rdev,
2339 struct net_device **vlan)
2340{
463d0183 2341 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2342 *vlan = NULL;
2343
2344 if (vlanattr) {
463d0183
JB		 2345 *vlan = dev_get_by_index(genl_info_net(info),
2346 nla_get_u32(vlanattr));
5727ef1b
JB		 2347 if (!*vlan)
2348 return -ENODEV;
2349 if (!(*vlan)->ieee80211_ptr)
2350 return -EINVAL;
2351 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2352 return -EINVAL;
c258d2de
FF		 2353 if (!netif_running(*vlan))
2354 return -ENETDOWN;
5727ef1b
JB		 2355 }
2356 return 0;
2357}
2358
2359static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2360{
4c476991 2361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2362 int err;
4c476991 2363 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2364 struct station_parameters params;
2365 u8 *mac_addr = NULL;
2366
2367 memset(&params, 0, sizeof(params));
2368
2369 params.listen_interval = -1;
57cf8043 2370 params.plink_state = -1;
5727ef1b
JB		 2371
2372 if (info->attrs[NL80211_ATTR_STA_AID])
2373 return -EINVAL;
2374
2375 if (!info->attrs[NL80211_ATTR_MAC])
2376 return -EINVAL;
2377
2378 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2379
2380 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2381 params.supported_rates =
2382 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2383 params.supported_rates_len =
2384 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2385 }
2386
2387 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2388 params.listen_interval =
2389 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2390
36aedc90
JM		 2391 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2392 params.ht_capa =
2393 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2394
eccb8e8f 2395 if (parse_station_flags(info, &params))
5727ef1b
JB		 2396 return -EINVAL;
2397
2ec600d6
LCC		 2398 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2399 params.plink_action =
2400 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2401
9c3990aa
JC		 2402 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2403 params.plink_state =
2404 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2405
463d0183 2406 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2407 if (err)
034d655e 2408 goto out;
a97f4424
JB		 2409
2410 /* validate settings */
2411 err = 0;
2412
2413 switch (dev->ieee80211_ptr->iftype) {
2414 case NL80211_IFTYPE_AP:
2415 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2416 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2417 /* disallow mesh-specific things */
2418 if (params.plink_action)
2419 err = -EINVAL;
2420 break;
074ac8df 2421 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2422 case NL80211_IFTYPE_STATION:
2423 /* disallow everything but AUTHORIZED flag */
2424 if (params.plink_action)
2425 err = -EINVAL;
2426 if (params.vlan)
2427 err = -EINVAL;
2428 if (params.supported_rates)
2429 err = -EINVAL;
2430 if (params.ht_capa)
2431 err = -EINVAL;
2432 if (params.listen_interval >= 0)
2433 err = -EINVAL;
2434 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2435 err = -EINVAL;
2436 break;
2437 case NL80211_IFTYPE_MESH_POINT:
2438 /* disallow things mesh doesn't support */
2439 if (params.vlan)
2440 err = -EINVAL;
2441 if (params.ht_capa)
2442 err = -EINVAL;
2443 if (params.listen_interval >= 0)
2444 err = -EINVAL;
b39c48fa
JC		 2445 if (params.sta_flags_mask &
2446 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2447 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2448 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2449 err = -EINVAL;
2450 break;
2451 default:
2452 err = -EINVAL;
034d655e
JB		 2453 }
2454
5727ef1b
JB		 2455 if (err)
2456 goto out;
2457
79c97e97 2458 if (!rdev->ops->change_station) {
5727ef1b
JB		 2459 err = -EOPNOTSUPP;
2460 goto out;
2461 }
2462
79c97e97 2463 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2464
2465 out:
2466 if (params.vlan)
2467 dev_put(params.vlan);
3b85875a 2468
5727ef1b
JB		 2469 return err;
2470}
2471
2472static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2473{
4c476991 2474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2475 int err;
4c476991 2476 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2477 struct station_parameters params;
2478 u8 *mac_addr = NULL;
2479
2480 memset(&params, 0, sizeof(params));
2481
2482 if (!info->attrs[NL80211_ATTR_MAC])
2483 return -EINVAL;
2484
5727ef1b
JB		 2485 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2486 return -EINVAL;
2487
2488 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2489 return -EINVAL;
2490
0e956c13
TLSC		 2491 if (!info->attrs[NL80211_ATTR_STA_AID])
2492 return -EINVAL;
2493
5727ef1b
JB		 2494 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2495 params.supported_rates =
2496 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2497 params.supported_rates_len =
2498 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2499 params.listen_interval =
2500 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2501
0e956c13
TLSC		 2502 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2503 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2504 return -EINVAL;
51b50fbe 2505
36aedc90
JM		 2506 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2507 params.ht_capa =
2508 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2509
96b78dff
JC		 2510 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2511 params.plink_action =
2512 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2513
eccb8e8f 2514 if (parse_station_flags(info, &params))
5727ef1b
JB		 2515 return -EINVAL;
2516
0e956c13 2517 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2518 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2519 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2520 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2521 return -EINVAL;
0e956c13 2522
463d0183 2523 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2524 if (err)
e80cf853 2525 goto out;
a97f4424
JB		 2526
2527 /* validate settings */
2528 err = 0;
2529
79c97e97 2530 if (!rdev->ops->add_station) {
5727ef1b
JB		 2531 err = -EOPNOTSUPP;
2532 goto out;
2533 }
2534
79c97e97 2535 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2536
2537 out:
2538 if (params.vlan)
2539 dev_put(params.vlan);
5727ef1b
JB		 2540 return err;
2541}
2542
2543static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2544{
4c476991
JB		 2545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2546 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2547 u8 *mac_addr = NULL;
2548
2549 if (info->attrs[NL80211_ATTR_MAC])
2550 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2551
e80cf853 2552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2553 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2554 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2555 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2556 return -EINVAL;
5727ef1b 2557
4c476991
JB		 2558 if (!rdev->ops->del_station)
2559 return -EOPNOTSUPP;
3b85875a 2560
4c476991 2561 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2562}
2563
2ec600d6
LCC		 2564static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2565 int flags, struct net_device *dev,
2566 u8 *dst, u8 *next_hop,
2567 struct mpath_info *pinfo)
2568{
2569 void *hdr;
2570 struct nlattr *pinfoattr;
2571
2572 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2573 if (!hdr)
2574 return -1;
2575
2576 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2577 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2578 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2579
f5ea9120
JB		 2580 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2581
2ec600d6
LCC		 2582 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2583 if (!pinfoattr)
2584 goto nla_put_failure;
2585 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2586 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2587 pinfo->frame_qlen);
d19b3bf6
RP		 2588 if (pinfo->filled & MPATH_INFO_SN)
2589 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2590 pinfo->sn);
2ec600d6
LCC		 2591 if (pinfo->filled & MPATH_INFO_METRIC)
2592 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2593 pinfo->metric);
2594 if (pinfo->filled & MPATH_INFO_EXPTIME)
2595 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2596 pinfo->exptime);
2597 if (pinfo->filled & MPATH_INFO_FLAGS)
2598 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2599 pinfo->flags);
2600 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2601 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2602 pinfo->discovery_timeout);
2603 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2604 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2605 pinfo->discovery_retries);
2606
2607 nla_nest_end(msg, pinfoattr);
2608
2609 return genlmsg_end(msg, hdr);
2610
2611 nla_put_failure:
bc3ed28c
TG		 2612 genlmsg_cancel(msg, hdr);
2613 return -EMSGSIZE;
2ec600d6
LCC		 2614}
2615
2616static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2617 struct netlink_callback *cb)
2ec600d6 2618{
2ec600d6
LCC		 2619 struct mpath_info pinfo;
2620 struct cfg80211_registered_device *dev;
bba95fef 2621 struct net_device *netdev;
2ec600d6
LCC		 2622 u8 dst[ETH_ALEN];
2623 u8 next_hop[ETH_ALEN];
bba95fef 2624 int path_idx = cb->args[1];
2ec600d6 2625 int err;
2ec600d6 2626
67748893
JB		 2627 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2628 if (err)
2629 return err;
bba95fef
JB		 2630
2631 if (!dev->ops->dump_mpath) {
eec60b03 2632 err = -EOPNOTSUPP;
bba95fef
JB		 2633 goto out_err;
2634 }
2635
eec60b03
JM		 2636 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2637 err = -EOPNOTSUPP;
0448b5fc 2638 goto out_err;
eec60b03
JM		 2639 }
2640
bba95fef
JB		 2641 while (1) {
2642 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2643 dst, next_hop, &pinfo);
2644 if (err == -ENOENT)
2ec600d6 2645 break;
bba95fef 2646 if (err)
3b85875a 2647 goto out_err;
2ec600d6 2648
bba95fef
JB		 2649 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2650 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2651 netdev, dst, next_hop,
2652 &pinfo) < 0)
2653 goto out;
2ec600d6 2654
bba95fef 2655 path_idx++;
2ec600d6 2656 }
2ec600d6 2657
2ec600d6 2658
bba95fef
JB		 2659 out:
2660 cb->args[1] = path_idx;
2661 err = skb->len;
bba95fef 2662 out_err:
67748893 2663 nl80211_finish_netdev_dump(dev);
bba95fef 2664 return err;
2ec600d6
LCC		 2665}
2666
2667static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2668{
4c476991 2669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2670 int err;
4c476991 2671 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2672 struct mpath_info pinfo;
2673 struct sk_buff *msg;
2674 u8 *dst = NULL;
2675 u8 next_hop[ETH_ALEN];
2676
2677 memset(&pinfo, 0, sizeof(pinfo));
2678
2679 if (!info->attrs[NL80211_ATTR_MAC])
2680 return -EINVAL;
2681
2682 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2683
4c476991
JB		 2684 if (!rdev->ops->get_mpath)
2685 return -EOPNOTSUPP;
2ec600d6 2686
4c476991
JB		 2687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2688 return -EOPNOTSUPP;
eec60b03 2689
79c97e97 2690 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2691 if (err)
4c476991 2692 return err;
2ec600d6 2693
fd2120ca 2694 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2695 if (!msg)
4c476991 2696 return -ENOMEM;
2ec600d6
LCC		 2697
2698 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2699 dev, dst, next_hop, &pinfo) < 0) {
2700 nlmsg_free(msg);
2701 return -ENOBUFS;
2702 }
3b85875a 2703
4c476991 2704 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2705}
2706
2707static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2708{
4c476991
JB		 2709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2710 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2711 u8 *dst = NULL;
2712 u8 *next_hop = NULL;
2713
2714 if (!info->attrs[NL80211_ATTR_MAC])
2715 return -EINVAL;
2716
2717 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2718 return -EINVAL;
2719
2720 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2721 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2722
4c476991
JB		 2723 if (!rdev->ops->change_mpath)
2724 return -EOPNOTSUPP;
35a8efe1 2725
4c476991
JB		 2726 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2727 return -EOPNOTSUPP;
2ec600d6 2728
4c476991 2729 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2730}
4c476991 2731
2ec600d6
LCC		 2732static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2733{
4c476991
JB		 2734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2735 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2736 u8 *dst = NULL;
2737 u8 *next_hop = NULL;
2738
2739 if (!info->attrs[NL80211_ATTR_MAC])
2740 return -EINVAL;
2741
2742 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2743 return -EINVAL;
2744
2745 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2746 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2747
4c476991
JB		 2748 if (!rdev->ops->add_mpath)
2749 return -EOPNOTSUPP;
35a8efe1 2750
4c476991
JB		 2751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2752 return -EOPNOTSUPP;
2ec600d6 2753
4c476991 2754 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2755}
2756
2757static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2758{
4c476991
JB		 2759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2760 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2761 u8 *dst = NULL;
2762
2763 if (info->attrs[NL80211_ATTR_MAC])
2764 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2765
4c476991
JB		 2766 if (!rdev->ops->del_mpath)
2767 return -EOPNOTSUPP;
3b85875a 2768
4c476991 2769 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2770}
2771
9f1ba906
JM		 2772static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2773{
4c476991
JB		 2774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2775 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2776 struct bss_parameters params;
2777
2778 memset(&params, 0, sizeof(params));
2779 /* default to not changing parameters */
2780 params.use_cts_prot = -1;
2781 params.use_short_preamble = -1;
2782 params.use_short_slot_time = -1;
fd8aaaf3 2783 params.ap_isolate = -1;
50b12f59 2784 params.ht_opmode = -1;
9f1ba906
JM		 2785
2786 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2787 params.use_cts_prot =
2788 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2789 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2790 params.use_short_preamble =
2791 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2792 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2793 params.use_short_slot_time =
2794 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2795 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2796 params.basic_rates =
2797 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2798 params.basic_rates_len =
2799 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2800 }
fd8aaaf3
FF		 2801 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2802 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2803 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2804 params.ht_opmode =
2805 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2806
4c476991
JB		 2807 if (!rdev->ops->change_bss)
2808 return -EOPNOTSUPP;
9f1ba906 2809
074ac8df 2810 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2811 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2812 return -EOPNOTSUPP;
3b85875a 2813
4c476991 2814 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2815}
2816
b54452b0 2817static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2818 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2819 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2820 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2821 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2822 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2823 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2824};
2825
2826static int parse_reg_rule(struct nlattr *tb[],
2827 struct ieee80211_reg_rule *reg_rule)
2828{
2829 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2830 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2831
2832 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2833 return -EINVAL;
2834 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2835 return -EINVAL;
2836 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2837 return -EINVAL;
2838 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2839 return -EINVAL;
2840 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2841 return -EINVAL;
2842
2843 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2844
2845 freq_range->start_freq_khz =
2846 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2847 freq_range->end_freq_khz =
2848 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2849 freq_range->max_bandwidth_khz =
2850 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2851
2852 power_rule->max_eirp =
2853 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2854
2855 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2856 power_rule->max_antenna_gain =
2857 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2858
2859 return 0;
2860}
2861
2862static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2863{
2864 int r;
2865 char *data = NULL;
2866
80778f18
LR		 2867 /*
2868 * You should only get this when cfg80211 hasn't yet initialized
2869 * completely when built-in to the kernel right between the time
2870 * window between nl80211_init() and regulatory_init(), if that is
2871 * even possible.
2872 */
2873 mutex_lock(&cfg80211_mutex);
2874 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2875 mutex_unlock(&cfg80211_mutex);
2876 return -EINPROGRESS;
80778f18 2877 }
fe33eb39 2878 mutex_unlock(&cfg80211_mutex);
80778f18 2879
fe33eb39
LR		 2880 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2881 return -EINVAL;
b2e1b302
LR		 2882
2883 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2884
fe33eb39
LR		 2885 r = regulatory_hint_user(data);
2886
b2e1b302
LR		 2887 return r;
2888}
2889
24bdd9f4 2890static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 2891 struct genl_info *info)
93da9cc1 2892{
4c476991 2893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 2894 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 2895 struct wireless_dev *wdev = dev->ieee80211_ptr;
2896 struct mesh_config cur_params;
2897 int err = 0;
93da9cc1 2898 void *hdr;
2899 struct nlattr *pinfoattr;
2900 struct sk_buff *msg;
2901
29cbe68c
JB		 2902 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
2903 return -EOPNOTSUPP;
2904
24bdd9f4 2905 if (!rdev->ops->get_mesh_config)
4c476991 2906 return -EOPNOTSUPP;
f3f92586 2907
29cbe68c
JB		 2908 wdev_lock(wdev);
2909 /* If not connected, get default parameters */
2910 if (!wdev->mesh_id_len)
2911 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
2912 else
24bdd9f4 2913 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 2914 &cur_params);
2915 wdev_unlock(wdev);
2916
93da9cc1 2917 if (err)
4c476991 2918 return err;
93da9cc1 2919
2920 /* Draw up a netlink message to send back */
fd2120ca 2921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2922 if (!msg)
2923 return -ENOMEM;
93da9cc1 2924 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 2925 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 2926 if (!hdr)
efe1cf0c 2927 goto out;
24bdd9f4 2928 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 2929 if (!pinfoattr)
2930 goto nla_put_failure;
2931 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2932 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2933 cur_params.dot11MeshRetryTimeout);
2934 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2935 cur_params.dot11MeshConfirmTimeout);
2936 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2937 cur_params.dot11MeshHoldingTimeout);
2938 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2939 cur_params.dot11MeshMaxPeerLinks);
2940 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2941 cur_params.dot11MeshMaxRetries);
2942 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2943 cur_params.dot11MeshTTL);
45904f21
JC		 2944 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
2945 cur_params.element_ttl);
93da9cc1 2946 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2947 cur_params.auto_open_plinks);
2948 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2949 cur_params.dot11MeshHWMPmaxPREQretries);
2950 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2951 cur_params.path_refresh_time);
2952 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2953 cur_params.min_discovery_timeout);
2954 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2955 cur_params.dot11MeshHWMPactivePathTimeout);
2956 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2957 cur_params.dot11MeshHWMPpreqMinInterval);
2958 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2959 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2960 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2961 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2962 nla_nest_end(msg, pinfoattr);
2963 genlmsg_end(msg, hdr);
4c476991 2964 return genlmsg_reply(msg, info);
93da9cc1 2965
3b85875a 2966 nla_put_failure:
93da9cc1 2967 genlmsg_cancel(msg, hdr);
efe1cf0c 2968 out:
d080e275 2969 nlmsg_free(msg);
4c476991 2970 return -ENOBUFS;
93da9cc1 2971}
2972
b54452b0 2973static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2974 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2975 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2976 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2977 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2978 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2979 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 2980 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 2981 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2982
2983 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2984 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2985 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2986 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2987 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2988 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2989};
2990
c80d545d
JC		 2991static const struct nla_policy
2992 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
2993 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
2994 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 2995 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 2996 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 2997 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 2998 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 2999};
3000
24bdd9f4 3001static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3002 struct mesh_config *cfg,
3003 u32 *mask_out)
93da9cc1 3004{
93da9cc1 3005 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3006 u32 mask = 0;
93da9cc1 3007
bd90fdcc
JB		 3008#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3009do {\
3010 if (table[attr_num]) {\
3011 cfg->param = nla_fn(table[attr_num]); \
3012 mask |= (1 << (attr_num - 1)); \
3013 } \
3014} while (0);\
3015
3016
24bdd9f4 3017 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3018 return -EINVAL;
3019 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3020 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3021 nl80211_meshconf_params_policy))
93da9cc1 3022 return -EINVAL;
3023
93da9cc1 3024 /* This makes sure that there aren't more than 32 mesh config
3025 * parameters (otherwise our bitfield scheme would not work.) */
3026 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3027
3028 /* Fill in the params struct */
93da9cc1 3029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3030 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3031 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3032 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3034 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3035 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3036 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3038 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3039 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3040 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3042 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3043 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3044 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3045 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3046 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3047 nla_get_u8);
3048 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3049 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3050 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3051 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3052 nla_get_u16);
3053 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3054 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3055 nla_get_u32);
3056 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3057 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3058 nla_get_u16);
3059 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3060 dot11MeshHWMPnetDiameterTraversalTime,
3061 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3062 nla_get_u16);
63c5723b
RP		 3063 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3064 dot11MeshHWMPRootMode, mask,
3065 NL80211_MESHCONF_HWMP_ROOTMODE,
3066 nla_get_u8);
bd90fdcc
JB		 3067 if (mask_out)
3068 *mask_out = mask;
c80d545d 3069
bd90fdcc
JB		 3070 return 0;
3071
3072#undef FILL_IN_MESH_PARAM_IF_SET
3073}
3074
c80d545d
JC		 3075static int nl80211_parse_mesh_setup(struct genl_info *info,
3076 struct mesh_setup *setup)
3077{
3078 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3079
3080 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3081 return -EINVAL;
3082 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3083 info->attrs[NL80211_ATTR_MESH_SETUP],
3084 nl80211_mesh_setup_params_policy))
3085 return -EINVAL;
3086
3087 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3088 setup->path_sel_proto =
3089 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3090 IEEE80211_PATH_PROTOCOL_VENDOR :
3091 IEEE80211_PATH_PROTOCOL_HWMP;
3092
3093 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3094 setup->path_metric =
3095 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3096 IEEE80211_PATH_METRIC_VENDOR :
3097 IEEE80211_PATH_METRIC_AIRTIME;
3098
581a8b0f
JC		 3099
3100 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3101 struct nlattr *ieattr =
581a8b0f 3102 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3103 if (!is_valid_ie_attr(ieattr))
3104 return -EINVAL;
581a8b0f
JC		 3105 setup->ie = nla_data(ieattr);
3106 setup->ie_len = nla_len(ieattr);
c80d545d 3107 }
b130e5ce
JC		 3108 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3109 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3110
3111 return 0;
3112}
3113
24bdd9f4 3114static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3115 struct genl_info *info)
bd90fdcc
JB		 3116{
3117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3118 struct net_device *dev = info->user_ptr[1];
29cbe68c 3119 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3120 struct mesh_config cfg;
3121 u32 mask;
3122 int err;
3123
29cbe68c
JB		 3124 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3125 return -EOPNOTSUPP;
3126
24bdd9f4 3127 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3128 return -EOPNOTSUPP;
3129
24bdd9f4 3130 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3131 if (err)
3132 return err;
3133
29cbe68c
JB		 3134 wdev_lock(wdev);
3135 if (!wdev->mesh_id_len)
3136 err = -ENOLINK;
3137
3138 if (!err)
24bdd9f4 3139 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3140 mask, &cfg);
3141
3142 wdev_unlock(wdev);
3143
3144 return err;
93da9cc1 3145}
3146
f130347c
LR		 3147static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3148{
3149 struct sk_buff *msg;
3150 void *hdr = NULL;
3151 struct nlattr *nl_reg_rules;
3152 unsigned int i;
3153 int err = -EINVAL;
3154
a1794390 3155 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3156
3157 if (!cfg80211_regdomain)
3158 goto out;
3159
fd2120ca 3160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3161 if (!msg) {
3162 err = -ENOBUFS;
3163 goto out;
3164 }
3165
3166 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3167 NL80211_CMD_GET_REG);
3168 if (!hdr)
efe1cf0c 3169 goto put_failure;
f130347c
LR		 3170
3171 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3172 cfg80211_regdomain->alpha2);
3173
3174 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3175 if (!nl_reg_rules)
3176 goto nla_put_failure;
3177
3178 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3179 struct nlattr *nl_reg_rule;
3180 const struct ieee80211_reg_rule *reg_rule;
3181 const struct ieee80211_freq_range *freq_range;
3182 const struct ieee80211_power_rule *power_rule;
3183
3184 reg_rule = &cfg80211_regdomain->reg_rules[i];
3185 freq_range = &reg_rule->freq_range;
3186 power_rule = &reg_rule->power_rule;
3187
3188 nl_reg_rule = nla_nest_start(msg, i);
3189 if (!nl_reg_rule)
3190 goto nla_put_failure;
3191
3192 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3193 reg_rule->flags);
3194 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3195 freq_range->start_freq_khz);
3196 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3197 freq_range->end_freq_khz);
3198 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3199 freq_range->max_bandwidth_khz);
3200 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3201 power_rule->max_antenna_gain);
3202 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3203 power_rule->max_eirp);
3204
3205 nla_nest_end(msg, nl_reg_rule);
3206 }
3207
3208 nla_nest_end(msg, nl_reg_rules);
3209
3210 genlmsg_end(msg, hdr);
134e6375 3211 err = genlmsg_reply(msg, info);
f130347c
LR		 3212 goto out;
3213
3214nla_put_failure:
3215 genlmsg_cancel(msg, hdr);
efe1cf0c 3216put_failure:
d080e275 3217 nlmsg_free(msg);
f130347c
LR		 3218 err = -EMSGSIZE;
3219out:
a1794390 3220 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3221 return err;
3222}
3223
b2e1b302
LR		 3224static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3225{
3226 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3227 struct nlattr *nl_reg_rule;
3228 char *alpha2 = NULL;
3229 int rem_reg_rules = 0, r = 0;
3230 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3231 struct ieee80211_regdomain *rd = NULL;
3232
3233 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3234 return -EINVAL;
3235
3236 if (!info->attrs[NL80211_ATTR_REG_RULES])
3237 return -EINVAL;
3238
3239 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3240
3241 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3242 rem_reg_rules) {
3243 num_rules++;
3244 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3245 return -EINVAL;
b2e1b302
LR		 3246 }
3247
61405e97
LR		 3248 mutex_lock(&cfg80211_mutex);
3249
d0e18f83
LR		 3250 if (!reg_is_valid_request(alpha2)) {
3251 r = -EINVAL;
3252 goto bad_reg;
3253 }
b2e1b302
LR		 3254
3255 size_of_regd = sizeof(struct ieee80211_regdomain) +
3256 (num_rules * sizeof(struct ieee80211_reg_rule));
3257
3258 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3259 if (!rd) {
3260 r = -ENOMEM;
3261 goto bad_reg;
3262 }
b2e1b302
LR		 3263
3264 rd->n_reg_rules = num_rules;
3265 rd->alpha2[0] = alpha2[0];
3266 rd->alpha2[1] = alpha2[1];
3267
3268 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3269 rem_reg_rules) {
3270 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3271 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3272 reg_rule_policy);
3273 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3274 if (r)
3275 goto bad_reg;
3276
3277 rule_idx++;
3278
d0e18f83
LR		 3279 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3280 r = -EINVAL;
b2e1b302 3281 goto bad_reg;
d0e18f83 3282 }
b2e1b302
LR		 3283 }
3284
3285 BUG_ON(rule_idx != num_rules);
3286
b2e1b302 3287 r = set_regdom(rd);
61405e97 3288
a1794390 3289 mutex_unlock(&cfg80211_mutex);
d0e18f83 3290
b2e1b302
LR		 3291 return r;
3292
d2372b31 3293 bad_reg:
61405e97 3294 mutex_unlock(&cfg80211_mutex);
b2e1b302 3295 kfree(rd);
d0e18f83 3296 return r;
b2e1b302
LR		 3297}
3298
83f5e2cf
JB		 3299static int validate_scan_freqs(struct nlattr *freqs)
3300{
3301 struct nlattr *attr1, *attr2;
3302 int n_channels = 0, tmp1, tmp2;
3303
3304 nla_for_each_nested(attr1, freqs, tmp1) {
3305 n_channels++;
3306 /*
3307 * Some hardware has a limited channel list for
3308 * scanning, and it is pretty much nonsensical
3309 * to scan for a channel twice, so disallow that
3310 * and don't require drivers to check that the
3311 * channel list they get isn't longer than what
3312 * they can scan, as long as they can scan all
3313 * the channels they registered at once.
3314 */
3315 nla_for_each_nested(attr2, freqs, tmp2)
3316 if (attr1 != attr2 &&
3317 nla_get_u32(attr1) == nla_get_u32(attr2))
3318 return 0;
3319 }
3320
3321 return n_channels;
3322}
3323
2a519311
JB		 3324static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3325{
4c476991
JB		 3326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3327 struct net_device *dev = info->user_ptr[1];
2a519311 3328 struct cfg80211_scan_request *request;
2a519311
JB		 3329 struct nlattr *attr;
3330 struct wiphy *wiphy;
83f5e2cf 3331 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3332 size_t ie_len;
2a519311 3333
f4a11bb0
JB		 3334 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3335 return -EINVAL;
3336
79c97e97 3337 wiphy = &rdev->wiphy;
2a519311 3338
4c476991
JB		 3339 if (!rdev->ops->scan)
3340 return -EOPNOTSUPP;
2a519311 3341
4c476991
JB		 3342 if (rdev->scan_req)
3343 return -EBUSY;
2a519311
JB		 3344
3345 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3346 n_channels = validate_scan_freqs(
3347 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3348 if (!n_channels)
3349 return -EINVAL;
2a519311 3350 } else {
34850ab2 3351 enum ieee80211_band band;
83f5e2cf
JB		 3352 n_channels = 0;
3353
2a519311
JB		 3354 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3355 if (wiphy->bands[band])
3356 n_channels += wiphy->bands[band]->n_channels;
3357 }
3358
3359 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3360 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3361 n_ssids++;
3362
4c476991
JB		 3363 if (n_ssids > wiphy->max_scan_ssids)
3364 return -EINVAL;
2a519311 3365
70692ad2
JM		 3366 if (info->attrs[NL80211_ATTR_IE])
3367 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3368 else
3369 ie_len = 0;
3370
4c476991
JB		 3371 if (ie_len > wiphy->max_scan_ie_len)
3372 return -EINVAL;
18a83659 3373
2a519311 3374 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3375 + sizeof(*request->ssids) * n_ssids
3376 + sizeof(*request->channels) * n_channels
70692ad2 3377 + ie_len, GFP_KERNEL);
4c476991
JB		 3378 if (!request)
3379 return -ENOMEM;
2a519311 3380
2a519311 3381 if (n_ssids)
5ba63533 3382 request->ssids = (void *)&request->channels[n_channels];
2a519311 3383 request->n_ssids = n_ssids;
70692ad2
JM		 3384 if (ie_len) {
3385 if (request->ssids)
3386 request->ie = (void *)(request->ssids + n_ssids);
3387 else
3388 request->ie = (void *)(request->channels + n_channels);
3389 }
2a519311 3390
584991dc 3391 i = 0;
2a519311
JB		 3392 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3393 /* user specified, bail out if channel not found */
2a519311 3394 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3395 struct ieee80211_channel *chan;
3396
3397 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3398
3399 if (!chan) {
2a519311
JB		 3400 err = -EINVAL;
3401 goto out_free;
3402 }
584991dc
JB		 3403
3404 /* ignore disabled channels */
3405 if (chan->flags & IEEE80211_CHAN_DISABLED)
3406 continue;
3407
3408 request->channels[i] = chan;
2a519311
JB		 3409 i++;
3410 }
3411 } else {
34850ab2
JB		 3412 enum ieee80211_band band;
3413
2a519311 3414 /* all channels */
2a519311
JB		 3415 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3416 int j;
3417 if (!wiphy->bands[band])
3418 continue;
3419 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3420 struct ieee80211_channel *chan;
3421
3422 chan = &wiphy->bands[band]->channels[j];
3423
3424 if (chan->flags & IEEE80211_CHAN_DISABLED)
3425 continue;
3426
3427 request->channels[i] = chan;
2a519311
JB		 3428 i++;
3429 }
3430 }
3431 }
3432
584991dc
JB		 3433 if (!i) {
3434 err = -EINVAL;
3435 goto out_free;
3436 }
3437
3438 request->n_channels = i;
3439
2a519311
JB		 3440 i = 0;
3441 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3442 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3443 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3444 err = -EINVAL;
3445 goto out_free;
3446 }
57a27e1d 3447 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3448 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3449 i++;
3450 }
3451 }
3452
70692ad2
JM		 3453 if (info->attrs[NL80211_ATTR_IE]) {
3454 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3455 memcpy((void *)request->ie,
3456 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3457 request->ie_len);
3458 }
3459
34850ab2 3460 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3461 if (wiphy->bands[i])
3462 request->rates[i] =
3463 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3464
3465 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3466 nla_for_each_nested(attr,
3467 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3468 tmp) {
3469 enum ieee80211_band band = nla_type(attr);
3470
84404623 3471 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3472 err = -EINVAL;
3473 goto out_free;
3474 }
3475 err = ieee80211_get_ratemask(wiphy->bands[band],
3476 nla_data(attr),
3477 nla_len(attr),
3478 &request->rates[band]);
3479 if (err)
3480 goto out_free;
3481 }
3482 }
3483
463d0183 3484 request->dev = dev;
79c97e97 3485 request->wiphy = &rdev->wiphy;
2a519311 3486
79c97e97
JB		 3487 rdev->scan_req = request;
3488 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3489
463d0183 3490 if (!err) {
79c97e97 3491 nl80211_send_scan_start(rdev, dev);
463d0183 3492 dev_hold(dev);
4c476991 3493 } else {
2a519311 3494 out_free:
79c97e97 3495 rdev->scan_req = NULL;
2a519311
JB		 3496 kfree(request);
3497 }
3b85875a 3498
2a519311
JB		 3499 return err;
3500}
3501
807f8a8c
LC		 3502static int nl80211_start_sched_scan(struct sk_buff *skb,
3503 struct genl_info *info)
3504{
3505 struct cfg80211_sched_scan_request *request;
3506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3507 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3508 struct nlattr *attr;
3509 struct wiphy *wiphy;
3510 int err, tmp, n_ssids = 0, n_channels, i;
bbe6ad6d 3511 u32 interval;
807f8a8c
LC		 3512 enum ieee80211_band band;
3513 size_t ie_len;
3514
3515 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3516 !rdev->ops->sched_scan_start)
3517 return -EOPNOTSUPP;
3518
3519 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3520 return -EINVAL;
3521
bbe6ad6d
LC		 3522 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3523 return -EINVAL;
3524
3525 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3526 if (interval == 0)
3527 return -EINVAL;
3528
807f8a8c
LC		 3529 wiphy = &rdev->wiphy;
3530
3531 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3532 n_channels = validate_scan_freqs(
3533 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3534 if (!n_channels)
3535 return -EINVAL;
3536 } else {
3537 n_channels = 0;
3538
3539 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3540 if (wiphy->bands[band])
3541 n_channels += wiphy->bands[band]->n_channels;
3542 }
3543
3544 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3545 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3546 tmp)
3547 n_ssids++;
3548
93b6aa69 3549 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3550 return -EINVAL;
3551
3552 if (info->attrs[NL80211_ATTR_IE])
3553 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3554 else
3555 ie_len = 0;
3556
5a865bad 3557 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3558 return -EINVAL;
3559
c10841ca
LC		 3560 mutex_lock(&rdev->sched_scan_mtx);
3561
3562 if (rdev->sched_scan_req) {
3563 err = -EINPROGRESS;
3564 goto out;
3565 }
3566
807f8a8c 3567 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3568 + sizeof(*request->ssids) * n_ssids
3569 + sizeof(*request->channels) * n_channels
807f8a8c 3570 + ie_len, GFP_KERNEL);
c10841ca
LC		 3571 if (!request) {
3572 err = -ENOMEM;
3573 goto out;
3574 }
807f8a8c
LC		 3575
3576 if (n_ssids)
3577 request->ssids = (void *)&request->channels[n_channels];
3578 request->n_ssids = n_ssids;
3579 if (ie_len) {
3580 if (request->ssids)
3581 request->ie = (void *)(request->ssids + n_ssids);
3582 else
3583 request->ie = (void *)(request->channels + n_channels);
3584 }
3585
3586 i = 0;
3587 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3588 /* user specified, bail out if channel not found */
3589 nla_for_each_nested(attr,
3590 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3591 tmp) {
3592 struct ieee80211_channel *chan;
3593
3594 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3595
3596 if (!chan) {
3597 err = -EINVAL;
3598 goto out_free;
3599 }
3600
3601 /* ignore disabled channels */
3602 if (chan->flags & IEEE80211_CHAN_DISABLED)
3603 continue;
3604
3605 request->channels[i] = chan;
3606 i++;
3607 }
3608 } else {
3609 /* all channels */
3610 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3611 int j;
3612 if (!wiphy->bands[band])
3613 continue;
3614 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3615 struct ieee80211_channel *chan;
3616
3617 chan = &wiphy->bands[band]->channels[j];
3618
3619 if (chan->flags & IEEE80211_CHAN_DISABLED)
3620 continue;
3621
3622 request->channels[i] = chan;
3623 i++;
3624 }
3625 }
3626 }
3627
3628 if (!i) {
3629 err = -EINVAL;
3630 goto out_free;
3631 }
3632
3633 request->n_channels = i;
3634
3635 i = 0;
3636 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3637 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3638 tmp) {
57a27e1d 3639 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3640 err = -EINVAL;
3641 goto out_free;
3642 }
57a27e1d 3643 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3644 memcpy(request->ssids[i].ssid, nla_data(attr),
3645 nla_len(attr));
807f8a8c
LC		 3646 i++;
3647 }
3648 }
3649
3650 if (info->attrs[NL80211_ATTR_IE]) {
3651 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3652 memcpy((void *)request->ie,
3653 nla_data(info->attrs[NL80211_ATTR_IE]),
3654 request->ie_len);
3655 }
3656
3657 request->dev = dev;
3658 request->wiphy = &rdev->wiphy;
bbe6ad6d 3659 request->interval = interval;
807f8a8c
LC		 3660
3661 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3662 if (!err) {
3663 rdev->sched_scan_req = request;
3664 nl80211_send_sched_scan(rdev, dev,
3665 NL80211_CMD_START_SCHED_SCAN);
3666 goto out;
3667 }
3668
3669out_free:
3670 kfree(request);
3671out:
c10841ca 3672 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3673 return err;
3674}
3675
3676static int nl80211_stop_sched_scan(struct sk_buff *skb,
3677 struct genl_info *info)
3678{
3679 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3680 int err;
807f8a8c
LC		 3681
3682 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3683 !rdev->ops->sched_scan_stop)
3684 return -EOPNOTSUPP;
3685
c10841ca
LC		 3686 mutex_lock(&rdev->sched_scan_mtx);
3687 err = __cfg80211_stop_sched_scan(rdev, false);
3688 mutex_unlock(&rdev->sched_scan_mtx);
3689
3690 return err;
807f8a8c
LC		 3691}
3692
9720bb3a
JB		 3693static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3694 u32 seq, int flags,
2a519311 3695 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3696 struct wireless_dev *wdev,
3697 struct cfg80211_internal_bss *intbss)
2a519311 3698{
48ab905d 3699 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3700 void *hdr;
3701 struct nlattr *bss;
48ab905d
JB		 3702 int i;
3703
3704 ASSERT_WDEV_LOCK(wdev);
2a519311 3705
9720bb3a 3706 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 3707 NL80211_CMD_NEW_SCAN_RESULTS);
3708 if (!hdr)
3709 return -1;
3710
9720bb3a
JB		 3711 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3712
f5ea9120 3713 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3714 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3715
3716 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3717 if (!bss)
3718 goto nla_put_failure;
3719 if (!is_zero_ether_addr(res->bssid))
3720 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3721 if (res->information_elements && res->len_information_elements)
3722 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3723 res->len_information_elements,
3724 res->information_elements);
34a6eddb
JM		 3725 if (res->beacon_ies && res->len_beacon_ies &&
3726 res->beacon_ies != res->information_elements)
3727 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3728 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3729 if (res->tsf)
3730 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3731 if (res->beacon_interval)
3732 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3733 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3734 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3735 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3736 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3737
77965c97 3738 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3739 case CFG80211_SIGNAL_TYPE_MBM:
3740 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3741 break;
3742 case CFG80211_SIGNAL_TYPE_UNSPEC:
3743 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3744 break;
3745 default:
3746 break;
3747 }
3748
48ab905d 3749 switch (wdev->iftype) {
074ac8df 3750 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3751 case NL80211_IFTYPE_STATION:
3752 if (intbss == wdev->current_bss)
3753 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3754 NL80211_BSS_STATUS_ASSOCIATED);
3755 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3756 if (intbss != wdev->auth_bsses[i])
3757 continue;
3758 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3759 NL80211_BSS_STATUS_AUTHENTICATED);
3760 break;
3761 }
3762 break;
3763 case NL80211_IFTYPE_ADHOC:
3764 if (intbss == wdev->current_bss)
3765 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3766 NL80211_BSS_STATUS_IBSS_JOINED);
3767 break;
3768 default:
3769 break;
3770 }
3771
2a519311
JB		 3772 nla_nest_end(msg, bss);
3773
3774 return genlmsg_end(msg, hdr);
3775
3776 nla_put_failure:
3777 genlmsg_cancel(msg, hdr);
3778 return -EMSGSIZE;
3779}
3780
3781static int nl80211_dump_scan(struct sk_buff *skb,
3782 struct netlink_callback *cb)
3783{
48ab905d
JB		 3784 struct cfg80211_registered_device *rdev;
3785 struct net_device *dev;
2a519311 3786 struct cfg80211_internal_bss *scan;
48ab905d 3787 struct wireless_dev *wdev;
2a519311
JB		 3788 int start = cb->args[1], idx = 0;
3789 int err;
3790
67748893
JB		 3791 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3792 if (err)
3793 return err;
2a519311 3794
48ab905d 3795 wdev = dev->ieee80211_ptr;
2a519311 3796
48ab905d
JB		 3797 wdev_lock(wdev);
3798 spin_lock_bh(&rdev->bss_lock);
3799 cfg80211_bss_expire(rdev);
3800
9720bb3a
JB		 3801 cb->seq = rdev->bss_generation;
3802
48ab905d 3803 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3804 if (++idx <= start)
3805 continue;
9720bb3a 3806 if (nl80211_send_bss(skb, cb,
2a519311 3807 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3808 rdev, wdev, scan) < 0) {
2a519311 3809 idx--;
67748893 3810 break;
2a519311
JB		 3811 }
3812 }
3813
48ab905d
JB		 3814 spin_unlock_bh(&rdev->bss_lock);
3815 wdev_unlock(wdev);
2a519311
JB		 3816
3817 cb->args[1] = idx;
67748893 3818 nl80211_finish_netdev_dump(rdev);
2a519311 3819
67748893 3820 return skb->len;
2a519311
JB		 3821}
3822
61fa713c
HS		 3823static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3824 int flags, struct net_device *dev,
3825 struct survey_info *survey)
3826{
3827 void *hdr;
3828 struct nlattr *infoattr;
3829
61fa713c
HS		 3830 hdr = nl80211hdr_put(msg, pid, seq, flags,
3831 NL80211_CMD_NEW_SURVEY_RESULTS);
3832 if (!hdr)
3833 return -ENOMEM;
3834
3835 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3836
3837 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3838 if (!infoattr)
3839 goto nla_put_failure;
3840
3841 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3842 survey->channel->center_freq);
3843 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3844 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3845 survey->noise);
17e5a808
FF		 3846 if (survey->filled & SURVEY_INFO_IN_USE)
3847 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3848 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3849 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3850 survey->channel_time);
3851 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3852 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3853 survey->channel_time_busy);
3854 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3855 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3856 survey->channel_time_ext_busy);
3857 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3858 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3859 survey->channel_time_rx);
3860 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3861 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3862 survey->channel_time_tx);
61fa713c
HS		 3863
3864 nla_nest_end(msg, infoattr);
3865
3866 return genlmsg_end(msg, hdr);
3867
3868 nla_put_failure:
3869 genlmsg_cancel(msg, hdr);
3870 return -EMSGSIZE;
3871}
3872
3873static int nl80211_dump_survey(struct sk_buff *skb,
3874 struct netlink_callback *cb)
3875{
3876 struct survey_info survey;
3877 struct cfg80211_registered_device *dev;
3878 struct net_device *netdev;
61fa713c
HS		 3879 int survey_idx = cb->args[1];
3880 int res;
3881
67748893
JB		 3882 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3883 if (res)
3884 return res;
61fa713c
HS		 3885
3886 if (!dev->ops->dump_survey) {
3887 res = -EOPNOTSUPP;
3888 goto out_err;
3889 }
3890
3891 while (1) {
180cdc79
LR		 3892 struct ieee80211_channel *chan;
3893
61fa713c
HS		 3894 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3895 &survey);
3896 if (res == -ENOENT)
3897 break;
3898 if (res)
3899 goto out_err;
3900
180cdc79
LR		 3901 /* Survey without a channel doesn't make sense */
3902 if (!survey.channel) {
3903 res = -EINVAL;
3904 goto out;
3905 }
3906
3907 chan = ieee80211_get_channel(&dev->wiphy,
3908 survey.channel->center_freq);
3909 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
3910 survey_idx++;
3911 continue;
3912 }
3913
61fa713c
HS		 3914 if (nl80211_send_survey(skb,
3915 NETLINK_CB(cb->skb).pid,
3916 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3917 netdev,
3918 &survey) < 0)
3919 goto out;
3920 survey_idx++;
3921 }
3922
3923 out:
3924 cb->args[1] = survey_idx;
3925 res = skb->len;
3926 out_err:
67748893 3927 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3928 return res;
3929}
3930
255e737e
JM		 3931static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3932{
b23aa676
SO		 3933 return auth_type <= NL80211_AUTHTYPE_MAX;
3934}
3935
3936static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3937{
3938 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3939 NL80211_WPA_VERSION_2));
3940}
3941
3942static bool nl80211_valid_akm_suite(u32 akm)
3943{
3944 return akm == WLAN_AKM_SUITE_8021X ||
3945 akm == WLAN_AKM_SUITE_PSK;
3946}
3947
3948static bool nl80211_valid_cipher_suite(u32 cipher)
3949{
3950 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3951 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3952 cipher == WLAN_CIPHER_SUITE_TKIP ||
3953 cipher == WLAN_CIPHER_SUITE_CCMP ||
3954 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3955}
3956
b23aa676 3957
636a5d36
JM		 3958static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3959{
4c476991
JB		 3960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3961 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3962 struct ieee80211_channel *chan;
3963 const u8 *bssid, *ssid, *ie = NULL;
3964 int err, ssid_len, ie_len = 0;
3965 enum nl80211_auth_type auth_type;
fffd0934 3966 struct key_parse key;
d5cdfacb 3967 bool local_state_change;
636a5d36 3968
f4a11bb0
JB		 3969 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3970 return -EINVAL;
3971
3972 if (!info->attrs[NL80211_ATTR_MAC])
3973 return -EINVAL;
3974
1778092e
JM		 3975 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3976 return -EINVAL;
3977
19957bb3
JB		 3978 if (!info->attrs[NL80211_ATTR_SSID])
3979 return -EINVAL;
3980
3981 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3982 return -EINVAL;
3983
fffd0934
JB		 3984 err = nl80211_parse_key(info, &key);
3985 if (err)
3986 return err;
3987
3988 if (key.idx >= 0) {
e31b8213
JB		 3989 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3990 return -EINVAL;
fffd0934
JB		 3991 if (!key.p.key || !key.p.key_len)
3992 return -EINVAL;
3993 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3994 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3995 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3996 key.p.key_len != WLAN_KEY_LEN_WEP104))
3997 return -EINVAL;
3998 if (key.idx > 4)
3999 return -EINVAL;
4000 } else {
4001 key.p.key_len = 0;
4002 key.p.key = NULL;
4003 }
4004
afea0b7a
JB		 4005 if (key.idx >= 0) {
4006 int i;
4007 bool ok = false;
4008 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4009 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4010 ok = true;
4011 break;
4012 }
4013 }
4c476991
JB		 4014 if (!ok)
4015 return -EINVAL;
afea0b7a
JB		 4016 }
4017
4c476991
JB		 4018 if (!rdev->ops->auth)
4019 return -EOPNOTSUPP;
636a5d36 4020
074ac8df 4021 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4022 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4023 return -EOPNOTSUPP;
eec60b03 4024
19957bb3 4025 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4026 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4027 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4028 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4029 return -EINVAL;
636a5d36 4030
19957bb3
JB		 4031 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4032 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4033
4034 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4035 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4036 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4037 }
4038
19957bb3 4039 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4040 if (!nl80211_valid_auth_type(auth_type))
4041 return -EINVAL;
636a5d36 4042
d5cdfacb
JM		 4043 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4044
4c476991
JB		 4045 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4046 ssid, ssid_len, ie, ie_len,
4047 key.p.key, key.p.key_len, key.idx,
4048 local_state_change);
636a5d36
JM		 4049}
4050
c0692b8f
JB		 4051static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4052 struct genl_info *info,
3dc27d25
JB		 4053 struct cfg80211_crypto_settings *settings,
4054 int cipher_limit)
b23aa676 4055{
c0b2bbd8
JB		 4056 memset(settings, 0, sizeof(*settings));
4057
b23aa676
SO		 4058 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4059
c0692b8f
JB		 4060 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4061 u16 proto;
4062 proto = nla_get_u16(
4063 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4064 settings->control_port_ethertype = cpu_to_be16(proto);
4065 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4066 proto != ETH_P_PAE)
4067 return -EINVAL;
4068 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4069 settings->control_port_no_encrypt = true;
4070 } else
4071 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4072
b23aa676
SO		 4073 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4074 void *data;
4075 int len, i;
4076
4077 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4078 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4079 settings->n_ciphers_pairwise = len / sizeof(u32);
4080
4081 if (len % sizeof(u32))
4082 return -EINVAL;
4083
3dc27d25 4084 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4085 return -EINVAL;
4086
4087 memcpy(settings->ciphers_pairwise, data, len);
4088
4089 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4090 if (!nl80211_valid_cipher_suite(
4091 settings->ciphers_pairwise[i]))
4092 return -EINVAL;
4093 }
4094
4095 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4096 settings->cipher_group =
4097 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4098 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4099 return -EINVAL;
4100 }
4101
4102 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4103 settings->wpa_versions =
4104 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4105 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4106 return -EINVAL;
4107 }
4108
4109 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4110 void *data;
4111 int len, i;
4112
4113 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4114 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4115 settings->n_akm_suites = len / sizeof(u32);
4116
4117 if (len % sizeof(u32))
4118 return -EINVAL;
4119
4120 memcpy(settings->akm_suites, data, len);
4121
4122 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4123 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4124 return -EINVAL;
4125 }
4126
4127 return 0;
4128}
4129
636a5d36
JM		 4130static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4131{
4c476991
JB		 4132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4133 struct net_device *dev = info->user_ptr[1];
19957bb3 4134 struct cfg80211_crypto_settings crypto;
f444de05 4135 struct ieee80211_channel *chan;
3e5d7649 4136 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4137 int err, ssid_len, ie_len = 0;
4138 bool use_mfp = false;
636a5d36 4139
f4a11bb0
JB		 4140 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4141 return -EINVAL;
4142
4143 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4144 !info->attrs[NL80211_ATTR_SSID] ||
4145 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4146 return -EINVAL;
4147
4c476991
JB		 4148 if (!rdev->ops->assoc)
4149 return -EOPNOTSUPP;
636a5d36 4150
074ac8df 4151 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4153 return -EOPNOTSUPP;
eec60b03 4154
19957bb3 4155 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4156
19957bb3
JB		 4157 chan = ieee80211_get_channel(&rdev->wiphy,
4158 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4159 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4160 return -EINVAL;
636a5d36 4161
19957bb3
JB		 4162 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4163 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4164
4165 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4166 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4167 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4168 }
4169
dc6382ce 4170 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4171 enum nl80211_mfp mfp =
dc6382ce 4172 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4173 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4174 use_mfp = true;
4c476991
JB		 4175 else if (mfp != NL80211_MFP_NO)
4176 return -EINVAL;
dc6382ce
JM		 4177 }
4178
3e5d7649
JB		 4179 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4180 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4181
c0692b8f 4182 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4183 if (!err)
3e5d7649
JB		 4184 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4185 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4186 &crypto);
636a5d36 4187
636a5d36
JM		 4188 return err;
4189}
4190
4191static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4192{
4c476991
JB		 4193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4194 struct net_device *dev = info->user_ptr[1];
19957bb3 4195 const u8 *ie = NULL, *bssid;
4c476991 4196 int ie_len = 0;
19957bb3 4197 u16 reason_code;
d5cdfacb 4198 bool local_state_change;
636a5d36 4199
f4a11bb0
JB		 4200 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4201 return -EINVAL;
4202
4203 if (!info->attrs[NL80211_ATTR_MAC])
4204 return -EINVAL;
4205
4206 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4207 return -EINVAL;
4208
4c476991
JB		 4209 if (!rdev->ops->deauth)
4210 return -EOPNOTSUPP;
636a5d36 4211
074ac8df 4212 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4213 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4214 return -EOPNOTSUPP;
eec60b03 4215
19957bb3 4216 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4217
19957bb3
JB		 4218 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4219 if (reason_code == 0) {
f4a11bb0 4220 /* Reason Code 0 is reserved */
4c476991 4221 return -EINVAL;
255e737e 4222 }
636a5d36
JM		 4223
4224 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4225 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4226 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4227 }
4228
d5cdfacb
JM		 4229 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4230
4c476991
JB		 4231 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4232 local_state_change);
636a5d36
JM		 4233}
4234
4235static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4236{
4c476991
JB		 4237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4238 struct net_device *dev = info->user_ptr[1];
19957bb3 4239 const u8 *ie = NULL, *bssid;
4c476991 4240 int ie_len = 0;
19957bb3 4241 u16 reason_code;
d5cdfacb 4242 bool local_state_change;
636a5d36 4243
f4a11bb0
JB		 4244 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4245 return -EINVAL;
4246
4247 if (!info->attrs[NL80211_ATTR_MAC])
4248 return -EINVAL;
4249
4250 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4251 return -EINVAL;
4252
4c476991
JB		 4253 if (!rdev->ops->disassoc)
4254 return -EOPNOTSUPP;
636a5d36 4255
074ac8df 4256 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4257 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4258 return -EOPNOTSUPP;
eec60b03 4259
19957bb3 4260 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4261
19957bb3
JB		 4262 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4263 if (reason_code == 0) {
f4a11bb0 4264 /* Reason Code 0 is reserved */
4c476991 4265 return -EINVAL;
255e737e 4266 }
636a5d36
JM		 4267
4268 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4269 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4270 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4271 }
4272
d5cdfacb
JM		 4273 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4274
4c476991
JB		 4275 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4276 local_state_change);
636a5d36
JM		 4277}
4278
dd5b4cc7
FF		 4279static bool
4280nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4281 int mcast_rate[IEEE80211_NUM_BANDS],
4282 int rateval)
4283{
4284 struct wiphy *wiphy = &rdev->wiphy;
4285 bool found = false;
4286 int band, i;
4287
4288 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4289 struct ieee80211_supported_band *sband;
4290
4291 sband = wiphy->bands[band];
4292 if (!sband)
4293 continue;
4294
4295 for (i = 0; i < sband->n_bitrates; i++) {
4296 if (sband->bitrates[i].bitrate == rateval) {
4297 mcast_rate[band] = i + 1;
4298 found = true;
4299 break;
4300 }
4301 }
4302 }
4303
4304 return found;
4305}
4306
04a773ad
JB		 4307static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4308{
4c476991
JB		 4309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4310 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4311 struct cfg80211_ibss_params ibss;
4312 struct wiphy *wiphy;
fffd0934 4313 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4314 int err;
4315
8e30bc55
JB		 4316 memset(&ibss, 0, sizeof(ibss));
4317
04a773ad
JB		 4318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4319 return -EINVAL;
4320
4321 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4322 !info->attrs[NL80211_ATTR_SSID] ||
4323 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4324 return -EINVAL;
4325
8e30bc55
JB		 4326 ibss.beacon_interval = 100;
4327
4328 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4329 ibss.beacon_interval =
4330 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4331 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4332 return -EINVAL;
4333 }
4334
4c476991
JB		 4335 if (!rdev->ops->join_ibss)
4336 return -EOPNOTSUPP;
04a773ad 4337
4c476991
JB		 4338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4339 return -EOPNOTSUPP;
04a773ad 4340
79c97e97 4341 wiphy = &rdev->wiphy;
04a773ad
JB		 4342
4343 if (info->attrs[NL80211_ATTR_MAC])
4344 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4345 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4346 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4347
4348 if (info->attrs[NL80211_ATTR_IE]) {
4349 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4350 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4351 }
4352
4353 ibss.channel = ieee80211_get_channel(wiphy,
4354 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4355 if (!ibss.channel ||
4356 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4357 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4358 return -EINVAL;
04a773ad
JB		 4359
4360 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4361 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4362
fbd2c8dc
TP		 4363 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4364 u8 *rates =
4365 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4366 int n_rates =
4367 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4368 struct ieee80211_supported_band *sband =
4369 wiphy->bands[ibss.channel->band];
34850ab2 4370 int err;
fbd2c8dc 4371
34850ab2
JB		 4372 err = ieee80211_get_ratemask(sband, rates, n_rates,
4373 &ibss.basic_rates);
4374 if (err)
4375 return err;
fbd2c8dc 4376 }
dd5b4cc7
FF		 4377
4378 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4379 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4380 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4381 return -EINVAL;
fbd2c8dc 4382
4c476991
JB		 4383 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4384 connkeys = nl80211_parse_connkeys(rdev,
4385 info->attrs[NL80211_ATTR_KEYS]);
4386 if (IS_ERR(connkeys))
4387 return PTR_ERR(connkeys);
4388 }
04a773ad 4389
4c476991 4390 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4391 if (err)
4392 kfree(connkeys);
04a773ad
JB		 4393 return err;
4394}
4395
4396static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4397{
4c476991
JB		 4398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4399 struct net_device *dev = info->user_ptr[1];
04a773ad 4400
4c476991
JB		 4401 if (!rdev->ops->leave_ibss)
4402 return -EOPNOTSUPP;
04a773ad 4403
4c476991
JB		 4404 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4405 return -EOPNOTSUPP;
04a773ad 4406
4c476991 4407 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4408}
4409
aff89a9b
JB		 4410#ifdef CONFIG_NL80211_TESTMODE
4411static struct genl_multicast_group nl80211_testmode_mcgrp = {
4412 .name = "testmode",
4413};
4414
4415static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4416{
4c476991 4417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4418 int err;
4419
4420 if (!info->attrs[NL80211_ATTR_TESTDATA])
4421 return -EINVAL;
4422
aff89a9b
JB		 4423 err = -EOPNOTSUPP;
4424 if (rdev->ops->testmode_cmd) {
4425 rdev->testmode_info = info;
4426 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4427 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4428 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4429 rdev->testmode_info = NULL;
4430 }
4431
aff89a9b
JB		 4432 return err;
4433}
4434
71063f0e
WYG		 4435static int nl80211_testmode_dump(struct sk_buff *skb,
4436 struct netlink_callback *cb)
4437{
4438 struct cfg80211_registered_device *dev;
4439 int err;
4440 long phy_idx;
4441 void *data = NULL;
4442 int data_len = 0;
4443
4444 if (cb->args[0]) {
4445 /*
4446 * 0 is a valid index, but not valid for args[0],
4447 * so we need to offset by 1.
4448 */
4449 phy_idx = cb->args[0] - 1;
4450 } else {
4451 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4452 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4453 nl80211_policy);
4454 if (err)
4455 return err;
4456 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4457 return -EINVAL;
4458 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4459 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4460 cb->args[1] =
4461 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4462 }
4463
4464 if (cb->args[1]) {
4465 data = nla_data((void *)cb->args[1]);
4466 data_len = nla_len((void *)cb->args[1]);
4467 }
4468
4469 mutex_lock(&cfg80211_mutex);
4470 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4471 if (!dev) {
4472 mutex_unlock(&cfg80211_mutex);
4473 return -ENOENT;
4474 }
4475 cfg80211_lock_rdev(dev);
4476 mutex_unlock(&cfg80211_mutex);
4477
4478 if (!dev->ops->testmode_dump) {
4479 err = -EOPNOTSUPP;
4480 goto out_err;
4481 }
4482
4483 while (1) {
4484 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4485 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4486 NL80211_CMD_TESTMODE);
4487 struct nlattr *tmdata;
4488
4489 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4490 genlmsg_cancel(skb, hdr);
4491 break;
4492 }
4493
4494 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4495 if (!tmdata) {
4496 genlmsg_cancel(skb, hdr);
4497 break;
4498 }
4499 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4500 data, data_len);
4501 nla_nest_end(skb, tmdata);
4502
4503 if (err == -ENOBUFS || err == -ENOENT) {
4504 genlmsg_cancel(skb, hdr);
4505 break;
4506 } else if (err) {
4507 genlmsg_cancel(skb, hdr);
4508 goto out_err;
4509 }
4510
4511 genlmsg_end(skb, hdr);
4512 }
4513
4514 err = skb->len;
4515 /* see above */
4516 cb->args[0] = phy_idx + 1;
4517 out_err:
4518 cfg80211_unlock_rdev(dev);
4519 return err;
4520}
4521
aff89a9b
JB		 4522static struct sk_buff *
4523__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4524 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4525{
4526 struct sk_buff *skb;
4527 void *hdr;
4528 struct nlattr *data;
4529
4530 skb = nlmsg_new(approxlen + 100, gfp);
4531 if (!skb)
4532 return NULL;
4533
4534 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4535 if (!hdr) {
4536 kfree_skb(skb);
4537 return NULL;
4538 }
4539
4540 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4541 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4542
4543 ((void **)skb->cb)[0] = rdev;
4544 ((void **)skb->cb)[1] = hdr;
4545 ((void **)skb->cb)[2] = data;
4546
4547 return skb;
4548
4549 nla_put_failure:
4550 kfree_skb(skb);
4551 return NULL;
4552}
4553
4554struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4555 int approxlen)
4556{
4557 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4558
4559 if (WARN_ON(!rdev->testmode_info))
4560 return NULL;
4561
4562 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4563 rdev->testmode_info->snd_pid,
4564 rdev->testmode_info->snd_seq,
4565 GFP_KERNEL);
4566}
4567EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4568
4569int cfg80211_testmode_reply(struct sk_buff *skb)
4570{
4571 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4572 void *hdr = ((void **)skb->cb)[1];
4573 struct nlattr *data = ((void **)skb->cb)[2];
4574
4575 if (WARN_ON(!rdev->testmode_info)) {
4576 kfree_skb(skb);
4577 return -EINVAL;
4578 }
4579
4580 nla_nest_end(skb, data);
4581 genlmsg_end(skb, hdr);
4582 return genlmsg_reply(skb, rdev->testmode_info);
4583}
4584EXPORT_SYMBOL(cfg80211_testmode_reply);
4585
4586struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4587 int approxlen, gfp_t gfp)
4588{
4589 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4590
4591 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4592}
4593EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4594
4595void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4596{
4597 void *hdr = ((void **)skb->cb)[1];
4598 struct nlattr *data = ((void **)skb->cb)[2];
4599
4600 nla_nest_end(skb, data);
4601 genlmsg_end(skb, hdr);
4602 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4603}
4604EXPORT_SYMBOL(cfg80211_testmode_event);
4605#endif
4606
b23aa676
SO		 4607static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4608{
4c476991
JB		 4609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4610 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4611 struct cfg80211_connect_params connect;
4612 struct wiphy *wiphy;
fffd0934 4613 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4614 int err;
4615
4616 memset(&connect, 0, sizeof(connect));
4617
4618 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4619 return -EINVAL;
4620
4621 if (!info->attrs[NL80211_ATTR_SSID] ||
4622 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4623 return -EINVAL;
4624
4625 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4626 connect.auth_type =
4627 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4628 if (!nl80211_valid_auth_type(connect.auth_type))
4629 return -EINVAL;
4630 } else
4631 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4632
4633 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4634
c0692b8f 4635 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4636 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4637 if (err)
4638 return err;
b23aa676 4639
074ac8df 4640 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4641 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4642 return -EOPNOTSUPP;
b23aa676 4643
79c97e97 4644 wiphy = &rdev->wiphy;
b23aa676 4645
b23aa676
SO		 4646 if (info->attrs[NL80211_ATTR_MAC])
4647 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4648 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4649 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4650
4651 if (info->attrs[NL80211_ATTR_IE]) {
4652 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4653 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4654 }
4655
4656 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4657 connect.channel =
4658 ieee80211_get_channel(wiphy,
4659 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4660 if (!connect.channel ||
4c476991
JB		 4661 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4662 return -EINVAL;
b23aa676
SO		 4663 }
4664
fffd0934
JB		 4665 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4666 connkeys = nl80211_parse_connkeys(rdev,
4667 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4668 if (IS_ERR(connkeys))
4669 return PTR_ERR(connkeys);
fffd0934
JB		 4670 }
4671
4672 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4673 if (err)
4674 kfree(connkeys);
b23aa676
SO		 4675 return err;
4676}
4677
4678static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4679{
4c476991
JB		 4680 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4681 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4682 u16 reason;
4683
4684 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4685 reason = WLAN_REASON_DEAUTH_LEAVING;
4686 else
4687 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4688
4689 if (reason == 0)
4690 return -EINVAL;
4691
074ac8df 4692 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4693 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4694 return -EOPNOTSUPP;
b23aa676 4695
4c476991 4696 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4697}
4698
463d0183
JB		 4699static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4700{
4c476991 4701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4702 struct net *net;
4703 int err;
4704 u32 pid;
4705
4706 if (!info->attrs[NL80211_ATTR_PID])
4707 return -EINVAL;
4708
4709 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4710
463d0183 4711 net = get_net_ns_by_pid(pid);
4c476991
JB		 4712 if (IS_ERR(net))
4713 return PTR_ERR(net);
463d0183
JB		 4714
4715 err = 0;
4716
4717 /* check if anything to do */
4c476991
JB		 4718 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4719 err = cfg80211_switch_netns(rdev, net);
463d0183 4720
463d0183 4721 put_net(net);
463d0183
JB		 4722 return err;
4723}
4724
67fbb16b
SO		 4725static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4726{
4c476991 4727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4728 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4729 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4730 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4731 struct cfg80211_pmksa pmksa;
4732
4733 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4734
4735 if (!info->attrs[NL80211_ATTR_MAC])
4736 return -EINVAL;
4737
4738 if (!info->attrs[NL80211_ATTR_PMKID])
4739 return -EINVAL;
4740
67fbb16b
SO		 4741 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4742 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4743
074ac8df 4744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4746 return -EOPNOTSUPP;
67fbb16b
SO		 4747
4748 switch (info->genlhdr->cmd) {
4749 case NL80211_CMD_SET_PMKSA:
4750 rdev_ops = rdev->ops->set_pmksa;
4751 break;
4752 case NL80211_CMD_DEL_PMKSA:
4753 rdev_ops = rdev->ops->del_pmksa;
4754 break;
4755 default:
4756 WARN_ON(1);
4757 break;
4758 }
4759
4c476991
JB		 4760 if (!rdev_ops)
4761 return -EOPNOTSUPP;
67fbb16b 4762
4c476991 4763 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4764}
4765
4766static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4767{
4c476991
JB		 4768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4769 struct net_device *dev = info->user_ptr[1];
67fbb16b 4770
074ac8df 4771 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4772 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4773 return -EOPNOTSUPP;
67fbb16b 4774
4c476991
JB		 4775 if (!rdev->ops->flush_pmksa)
4776 return -EOPNOTSUPP;
67fbb16b 4777
4c476991 4778 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4779}
4780
9588bbd5
JM		 4781static int nl80211_remain_on_channel(struct sk_buff *skb,
4782 struct genl_info *info)
4783{
4c476991
JB		 4784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4785 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4786 struct ieee80211_channel *chan;
4787 struct sk_buff *msg;
4788 void *hdr;
4789 u64 cookie;
4790 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4791 u32 freq, duration;
4792 int err;
4793
4794 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4795 !info->attrs[NL80211_ATTR_DURATION])
4796 return -EINVAL;
4797
4798 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4799
4800 /*
4801 * We should be on that channel for at least one jiffie,
4802 * and more than 5 seconds seems excessive.
4803 */
a293911d
JB		 4804 if (!duration || !msecs_to_jiffies(duration) ||
4805 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4806 return -EINVAL;
4807
4c476991
JB		 4808 if (!rdev->ops->remain_on_channel)
4809 return -EOPNOTSUPP;
9588bbd5 4810
9588bbd5
JM		 4811 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4812 channel_type = nla_get_u32(
4813 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4814 if (channel_type != NL80211_CHAN_NO_HT &&
4815 channel_type != NL80211_CHAN_HT20 &&
4816 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4817 channel_type != NL80211_CHAN_HT40MINUS)
4818 return -EINVAL;
9588bbd5
JM		 4819 }
4820
4821 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4822 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4823 if (chan == NULL)
4824 return -EINVAL;
9588bbd5
JM		 4825
4826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4827 if (!msg)
4828 return -ENOMEM;
9588bbd5
JM		 4829
4830 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4831 NL80211_CMD_REMAIN_ON_CHANNEL);
4832
4833 if (IS_ERR(hdr)) {
4834 err = PTR_ERR(hdr);
4835 goto free_msg;
4836 }
4837
4838 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4839 channel_type, duration, &cookie);
4840
4841 if (err)
4842 goto free_msg;
4843
4844 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4845
4846 genlmsg_end(msg, hdr);
4c476991
JB		 4847
4848 return genlmsg_reply(msg, info);
9588bbd5
JM		 4849
4850 nla_put_failure:
4851 err = -ENOBUFS;
4852 free_msg:
4853 nlmsg_free(msg);
9588bbd5
JM		 4854 return err;
4855}
4856
4857static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4858 struct genl_info *info)
4859{
4c476991
JB		 4860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4861 struct net_device *dev = info->user_ptr[1];
9588bbd5 4862 u64 cookie;
9588bbd5
JM		 4863
4864 if (!info->attrs[NL80211_ATTR_COOKIE])
4865 return -EINVAL;
4866
4c476991
JB		 4867 if (!rdev->ops->cancel_remain_on_channel)
4868 return -EOPNOTSUPP;
9588bbd5 4869
9588bbd5
JM		 4870 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4871
4c476991 4872 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4873}
4874
13ae75b1
JM		 4875static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4876 u8 *rates, u8 rates_len)
4877{
4878 u8 i;
4879 u32 mask = 0;
4880
4881 for (i = 0; i < rates_len; i++) {
4882 int rate = (rates[i] & 0x7f) * 5;
4883 int ridx;
4884 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4885 struct ieee80211_rate *srate =
4886 &sband->bitrates[ridx];
4887 if (rate == srate->bitrate) {
4888 mask |= 1 << ridx;
4889 break;
4890 }
4891 }
4892 if (ridx == sband->n_bitrates)
4893 return 0; /* rate not found */
4894 }
4895
4896 return mask;
4897}
4898
b54452b0 4899static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4900 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4901 .len = NL80211_MAX_SUPP_RATES },
4902};
4903
4904static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4905 struct genl_info *info)
4906{
4907 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4909 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4910 int rem, i;
4911 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4912 struct nlattr *tx_rates;
4913 struct ieee80211_supported_band *sband;
4914
4915 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4916 return -EINVAL;
4917
4c476991
JB		 4918 if (!rdev->ops->set_bitrate_mask)
4919 return -EOPNOTSUPP;
13ae75b1
JM		 4920
4921 memset(&mask, 0, sizeof(mask));
4922 /* Default to all rates enabled */
4923 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4924 sband = rdev->wiphy.bands[i];
4925 mask.control[i].legacy =
4926 sband ? (1 << sband->n_bitrates) - 1 : 0;
4927 }
4928
4929 /*
4930 * The nested attribute uses enum nl80211_band as the index. This maps
4931 * directly to the enum ieee80211_band values used in cfg80211.
4932 */
4933 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4934 {
4935 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4936 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4937 return -EINVAL;
13ae75b1 4938 sband = rdev->wiphy.bands[band];
4c476991
JB		 4939 if (sband == NULL)
4940 return -EINVAL;
13ae75b1
JM		 4941 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4942 nla_len(tx_rates), nl80211_txattr_policy);
4943 if (tb[NL80211_TXRATE_LEGACY]) {
4944 mask.control[band].legacy = rateset_to_mask(
4945 sband,
4946 nla_data(tb[NL80211_TXRATE_LEGACY]),
4947 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4948 if (mask.control[band].legacy == 0)
4949 return -EINVAL;
13ae75b1
JM		 4950 }
4951 }
4952
4c476991 4953 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4954}
4955
2e161f78 4956static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4957{
4c476991
JB		 4958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4959 struct net_device *dev = info->user_ptr[1];
2e161f78 4960 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4961
4962 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4963 return -EINVAL;
4964
2e161f78
JB		 4965 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4966 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4967
9d38d85d 4968 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4969 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4970 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4971 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4972 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 4973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 4974 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4975 return -EOPNOTSUPP;
026331c4
JM		 4976
4977 /* not much point in registering if we can't reply */
4c476991
JB		 4978 if (!rdev->ops->mgmt_tx)
4979 return -EOPNOTSUPP;
026331c4 4980
4c476991 4981 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4982 frame_type,
026331c4
JM		 4983 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4984 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4985}
4986
2e161f78 4987static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4988{
4c476991
JB		 4989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4990 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4991 struct ieee80211_channel *chan;
4992 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4993 bool channel_type_valid = false;
026331c4
JM		 4994 u32 freq;
4995 int err;
4996 void *hdr;
4997 u64 cookie;
4998 struct sk_buff *msg;
f7ca38df
JB		 4999 unsigned int wait = 0;
5000 bool offchan;
026331c4
JM		 5001
5002 if (!info->attrs[NL80211_ATTR_FRAME] ||
5003 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5004 return -EINVAL;
5005
4c476991
JB		 5006 if (!rdev->ops->mgmt_tx)
5007 return -EOPNOTSUPP;
026331c4 5008
9d38d85d 5009 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5010 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5011 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5012 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5014 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5016 return -EOPNOTSUPP;
026331c4 5017
f7ca38df
JB		 5018 if (info->attrs[NL80211_ATTR_DURATION]) {
5019 if (!rdev->ops->mgmt_tx_cancel_wait)
5020 return -EINVAL;
5021 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5022 }
5023
026331c4
JM		 5024 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5025 channel_type = nla_get_u32(
5026 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5027 if (channel_type != NL80211_CHAN_NO_HT &&
5028 channel_type != NL80211_CHAN_HT20 &&
5029 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5030 channel_type != NL80211_CHAN_HT40MINUS)
5031 return -EINVAL;
252aa631 5032 channel_type_valid = true;
026331c4
JM		 5033 }
5034
f7ca38df
JB		 5035 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5036
026331c4
JM		 5037 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5038 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5039 if (chan == NULL)
5040 return -EINVAL;
026331c4
JM		 5041
5042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5043 if (!msg)
5044 return -ENOMEM;
026331c4
JM		 5045
5046 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 5047 NL80211_CMD_FRAME);
026331c4
JM		 5048
5049 if (IS_ERR(hdr)) {
5050 err = PTR_ERR(hdr);
5051 goto free_msg;
5052 }
f7ca38df
JB		 5053 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5054 channel_type_valid, wait,
2e161f78
JB		 5055 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5056 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5057 &cookie);
026331c4
JM		 5058 if (err)
5059 goto free_msg;
5060
5061 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5062
5063 genlmsg_end(msg, hdr);
4c476991 5064 return genlmsg_reply(msg, info);
026331c4
JM		 5065
5066 nla_put_failure:
5067 err = -ENOBUFS;
5068 free_msg:
5069 nlmsg_free(msg);
026331c4
JM		 5070 return err;
5071}
5072
f7ca38df
JB		 5073static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5074{
5075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5076 struct net_device *dev = info->user_ptr[1];
5077 u64 cookie;
5078
5079 if (!info->attrs[NL80211_ATTR_COOKIE])
5080 return -EINVAL;
5081
5082 if (!rdev->ops->mgmt_tx_cancel_wait)
5083 return -EOPNOTSUPP;
5084
5085 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5086 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5087 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5088 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5089 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5090 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5091 return -EOPNOTSUPP;
5092
5093 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5094
5095 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5096}
5097
ffb9eb3d
KV		 5098static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5099{
4c476991 5100 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5101 struct wireless_dev *wdev;
4c476991 5102 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5103 u8 ps_state;
5104 bool state;
5105 int err;
5106
4c476991
JB		 5107 if (!info->attrs[NL80211_ATTR_PS_STATE])
5108 return -EINVAL;
ffb9eb3d
KV		 5109
5110 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5111
4c476991
JB		 5112 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5113 return -EINVAL;
ffb9eb3d
KV		 5114
5115 wdev = dev->ieee80211_ptr;
5116
4c476991
JB		 5117 if (!rdev->ops->set_power_mgmt)
5118 return -EOPNOTSUPP;
ffb9eb3d
KV		 5119
5120 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5121
5122 if (state == wdev->ps)
4c476991 5123 return 0;
ffb9eb3d 5124
4c476991
JB		 5125 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5126 wdev->ps_timeout);
5127 if (!err)
5128 wdev->ps = state;
ffb9eb3d
KV		 5129 return err;
5130}
5131
5132static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5133{
4c476991 5134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5135 enum nl80211_ps_state ps_state;
5136 struct wireless_dev *wdev;
4c476991 5137 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5138 struct sk_buff *msg;
5139 void *hdr;
5140 int err;
5141
ffb9eb3d
KV		 5142 wdev = dev->ieee80211_ptr;
5143
4c476991
JB		 5144 if (!rdev->ops->set_power_mgmt)
5145 return -EOPNOTSUPP;
ffb9eb3d
KV		 5146
5147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5148 if (!msg)
5149 return -ENOMEM;
ffb9eb3d
KV		 5150
5151 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5152 NL80211_CMD_GET_POWER_SAVE);
5153 if (!hdr) {
4c476991 5154 err = -ENOBUFS;
ffb9eb3d
KV		 5155 goto free_msg;
5156 }
5157
5158 if (wdev->ps)
5159 ps_state = NL80211_PS_ENABLED;
5160 else
5161 ps_state = NL80211_PS_DISABLED;
5162
5163 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5164
5165 genlmsg_end(msg, hdr);
4c476991 5166 return genlmsg_reply(msg, info);
ffb9eb3d 5167
4c476991 5168 nla_put_failure:
ffb9eb3d 5169 err = -ENOBUFS;
4c476991 5170 free_msg:
ffb9eb3d 5171 nlmsg_free(msg);
ffb9eb3d
KV		 5172 return err;
5173}
5174
d6dc1a38
JO		 5175static struct nla_policy
5176nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5177 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5178 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5179 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5180};
5181
5182static int nl80211_set_cqm_rssi(struct genl_info *info,
5183 s32 threshold, u32 hysteresis)
5184{
4c476991 5185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5186 struct wireless_dev *wdev;
4c476991 5187 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5188
5189 if (threshold > 0)
5190 return -EINVAL;
5191
d6dc1a38
JO		 5192 wdev = dev->ieee80211_ptr;
5193
4c476991
JB		 5194 if (!rdev->ops->set_cqm_rssi_config)
5195 return -EOPNOTSUPP;
d6dc1a38 5196
074ac8df 5197 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5198 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5199 return -EOPNOTSUPP;
d6dc1a38 5200
4c476991
JB		 5201 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5202 threshold, hysteresis);
d6dc1a38
JO		 5203}
5204
5205static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5206{
5207 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5208 struct nlattr *cqm;
5209 int err;
5210
5211 cqm = info->attrs[NL80211_ATTR_CQM];
5212 if (!cqm) {
5213 err = -EINVAL;
5214 goto out;
5215 }
5216
5217 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5218 nl80211_attr_cqm_policy);
5219 if (err)
5220 goto out;
5221
5222 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5223 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5224 s32 threshold;
5225 u32 hysteresis;
5226 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5227 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5228 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5229 } else
5230 err = -EINVAL;
5231
5232out:
5233 return err;
5234}
5235
29cbe68c
JB		 5236static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5237{
5238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5239 struct net_device *dev = info->user_ptr[1];
5240 struct mesh_config cfg;
c80d545d 5241 struct mesh_setup setup;
29cbe68c
JB		 5242 int err;
5243
5244 /* start with default */
5245 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5246 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5247
24bdd9f4 5248 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5249 /* and parse parameters if given */
24bdd9f4 5250 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5251 if (err)
5252 return err;
5253 }
5254
5255 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5256 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5257 return -EINVAL;
5258
c80d545d
JC		 5259 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5260 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5261
5262 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5263 /* parse additional setup parameters if given */
5264 err = nl80211_parse_mesh_setup(info, &setup);
5265 if (err)
5266 return err;
5267 }
5268
5269 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5270}
5271
5272static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5273{
5274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5275 struct net_device *dev = info->user_ptr[1];
5276
5277 return cfg80211_leave_mesh(rdev, dev);
5278}
5279
ff1b6e69
JB		 5280static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5281{
5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5283 struct sk_buff *msg;
5284 void *hdr;
5285
5286 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5287 return -EOPNOTSUPP;
5288
5289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5290 if (!msg)
5291 return -ENOMEM;
5292
5293 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5294 NL80211_CMD_GET_WOWLAN);
5295 if (!hdr)
5296 goto nla_put_failure;
5297
5298 if (rdev->wowlan) {
5299 struct nlattr *nl_wowlan;
5300
5301 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5302 if (!nl_wowlan)
5303 goto nla_put_failure;
5304
5305 if (rdev->wowlan->any)
5306 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5307 if (rdev->wowlan->disconnect)
5308 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5309 if (rdev->wowlan->magic_pkt)
5310 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5311 if (rdev->wowlan->gtk_rekey_failure)
5312 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5313 if (rdev->wowlan->eap_identity_req)
5314 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5315 if (rdev->wowlan->four_way_handshake)
5316 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5317 if (rdev->wowlan->rfkill_release)
5318 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5319 if (rdev->wowlan->n_patterns) {
5320 struct nlattr *nl_pats, *nl_pat;
5321 int i, pat_len;
5322
5323 nl_pats = nla_nest_start(msg,
5324 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5325 if (!nl_pats)
5326 goto nla_put_failure;
5327
5328 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5329 nl_pat = nla_nest_start(msg, i + 1);
5330 if (!nl_pat)
5331 goto nla_put_failure;
5332 pat_len = rdev->wowlan->patterns[i].pattern_len;
5333 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5334 DIV_ROUND_UP(pat_len, 8),
5335 rdev->wowlan->patterns[i].mask);
5336 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5337 pat_len,
5338 rdev->wowlan->patterns[i].pattern);
5339 nla_nest_end(msg, nl_pat);
5340 }
5341 nla_nest_end(msg, nl_pats);
5342 }
5343
5344 nla_nest_end(msg, nl_wowlan);
5345 }
5346
5347 genlmsg_end(msg, hdr);
5348 return genlmsg_reply(msg, info);
5349
5350nla_put_failure:
5351 nlmsg_free(msg);
5352 return -ENOBUFS;
5353}
5354
5355static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5356{
5357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5358 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5359 struct cfg80211_wowlan no_triggers = {};
5360 struct cfg80211_wowlan new_triggers = {};
5361 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5362 int err, i;
5363
5364 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5365 return -EOPNOTSUPP;
5366
5367 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5368 goto no_triggers;
5369
5370 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5371 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5372 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5373 nl80211_wowlan_policy);
5374 if (err)
5375 return err;
5376
5377 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5378 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5379 return -EINVAL;
5380 new_triggers.any = true;
5381 }
5382
5383 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5384 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5385 return -EINVAL;
5386 new_triggers.disconnect = true;
5387 }
5388
5389 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5390 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5391 return -EINVAL;
5392 new_triggers.magic_pkt = true;
5393 }
5394
77dbbb13
JB		 5395 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5396 return -EINVAL;
5397
5398 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5399 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5400 return -EINVAL;
5401 new_triggers.gtk_rekey_failure = true;
5402 }
5403
5404 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5405 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5406 return -EINVAL;
5407 new_triggers.eap_identity_req = true;
5408 }
5409
5410 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5411 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5412 return -EINVAL;
5413 new_triggers.four_way_handshake = true;
5414 }
5415
5416 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5417 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5418 return -EINVAL;
5419 new_triggers.rfkill_release = true;
5420 }
5421
ff1b6e69
JB		 5422 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5423 struct nlattr *pat;
5424 int n_patterns = 0;
5425 int rem, pat_len, mask_len;
5426 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5427
5428 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5429 rem)
5430 n_patterns++;
5431 if (n_patterns > wowlan->n_patterns)
5432 return -EINVAL;
5433
5434 new_triggers.patterns = kcalloc(n_patterns,
5435 sizeof(new_triggers.patterns[0]),
5436 GFP_KERNEL);
5437 if (!new_triggers.patterns)
5438 return -ENOMEM;
5439
5440 new_triggers.n_patterns = n_patterns;
5441 i = 0;
5442
5443 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5444 rem) {
5445 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5446 nla_data(pat), nla_len(pat), NULL);
5447 err = -EINVAL;
5448 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5449 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5450 goto error;
5451 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5452 mask_len = DIV_ROUND_UP(pat_len, 8);
5453 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5454 mask_len)
5455 goto error;
5456 if (pat_len > wowlan->pattern_max_len ||
5457 pat_len < wowlan->pattern_min_len)
5458 goto error;
5459
5460 new_triggers.patterns[i].mask =
5461 kmalloc(mask_len + pat_len, GFP_KERNEL);
5462 if (!new_triggers.patterns[i].mask) {
5463 err = -ENOMEM;
5464 goto error;
5465 }
5466 new_triggers.patterns[i].pattern =
5467 new_triggers.patterns[i].mask + mask_len;
5468 memcpy(new_triggers.patterns[i].mask,
5469 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5470 mask_len);
5471 new_triggers.patterns[i].pattern_len = pat_len;
5472 memcpy(new_triggers.patterns[i].pattern,
5473 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5474 pat_len);
5475 i++;
5476 }
5477 }
5478
5479 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5480 struct cfg80211_wowlan *ntrig;
5481 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5482 GFP_KERNEL);
5483 if (!ntrig) {
5484 err = -ENOMEM;
5485 goto error;
5486 }
5487 cfg80211_rdev_free_wowlan(rdev);
5488 rdev->wowlan = ntrig;
5489 } else {
5490 no_triggers:
5491 cfg80211_rdev_free_wowlan(rdev);
5492 rdev->wowlan = NULL;
5493 }
5494
5495 return 0;
5496 error:
5497 for (i = 0; i < new_triggers.n_patterns; i++)
5498 kfree(new_triggers.patterns[i].mask);
5499 kfree(new_triggers.patterns);
5500 return err;
5501}
5502
e5497d76
JB		 5503static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5504{
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5506 struct net_device *dev = info->user_ptr[1];
5507 struct wireless_dev *wdev = dev->ieee80211_ptr;
5508 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5509 struct cfg80211_gtk_rekey_data rekey_data;
5510 int err;
5511
5512 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5513 return -EINVAL;
5514
5515 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5516 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5517 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5518 nl80211_rekey_policy);
5519 if (err)
5520 return err;
5521
5522 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5523 return -ERANGE;
5524 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5525 return -ERANGE;
5526 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5527 return -ERANGE;
5528
5529 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5530 NL80211_KEK_LEN);
5531 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5532 NL80211_KCK_LEN);
5533 memcpy(rekey_data.replay_ctr,
5534 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5535 NL80211_REPLAY_CTR_LEN);
5536
5537 wdev_lock(wdev);
5538 if (!wdev->current_bss) {
5539 err = -ENOTCONN;
5540 goto out;
5541 }
5542
5543 if (!rdev->ops->set_rekey_data) {
5544 err = -EOPNOTSUPP;
5545 goto out;
5546 }
5547
5548 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5549 out:
5550 wdev_unlock(wdev);
5551 return err;
5552}
5553
4c476991
JB		 5554#define NL80211_FLAG_NEED_WIPHY 0x01
5555#define NL80211_FLAG_NEED_NETDEV 0x02
5556#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5557#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5558#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5559 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5560
5561static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5562 struct genl_info *info)
5563{
5564 struct cfg80211_registered_device *rdev;
5565 struct net_device *dev;
5566 int err;
5567 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5568
5569 if (rtnl)
5570 rtnl_lock();
5571
5572 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5573 rdev = cfg80211_get_dev_from_info(info);
5574 if (IS_ERR(rdev)) {
5575 if (rtnl)
5576 rtnl_unlock();
5577 return PTR_ERR(rdev);
5578 }
5579 info->user_ptr[0] = rdev;
5580 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5581 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5582 if (err) {
5583 if (rtnl)
5584 rtnl_unlock();
5585 return err;
5586 }
41265714
JB		 5587 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5588 !netif_running(dev)) {
d537f5fd
JB		 5589 cfg80211_unlock_rdev(rdev);
5590 dev_put(dev);
41265714
JB		 5591 if (rtnl)
5592 rtnl_unlock();
5593 return -ENETDOWN;
5594 }
4c476991
JB		 5595 info->user_ptr[0] = rdev;
5596 info->user_ptr[1] = dev;
5597 }
5598
5599 return 0;
5600}
5601
5602static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5603 struct genl_info *info)
5604{
5605 if (info->user_ptr[0])
5606 cfg80211_unlock_rdev(info->user_ptr[0]);
5607 if (info->user_ptr[1])
5608 dev_put(info->user_ptr[1]);
5609 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5610 rtnl_unlock();
5611}
5612
55682965
JB		 5613static struct genl_ops nl80211_ops[] = {
5614 {
5615 .cmd = NL80211_CMD_GET_WIPHY,
5616 .doit = nl80211_get_wiphy,
5617 .dumpit = nl80211_dump_wiphy,
5618 .policy = nl80211_policy,
5619 /* can be retrieved by unprivileged users */
4c476991 5620 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5621 },
5622 {
5623 .cmd = NL80211_CMD_SET_WIPHY,
5624 .doit = nl80211_set_wiphy,
5625 .policy = nl80211_policy,
5626 .flags = GENL_ADMIN_PERM,
4c476991 5627 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5628 },
5629 {
5630 .cmd = NL80211_CMD_GET_INTERFACE,
5631 .doit = nl80211_get_interface,
5632 .dumpit = nl80211_dump_interface,
5633 .policy = nl80211_policy,
5634 /* can be retrieved by unprivileged users */
4c476991 5635 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5636 },
5637 {
5638 .cmd = NL80211_CMD_SET_INTERFACE,
5639 .doit = nl80211_set_interface,
5640 .policy = nl80211_policy,
5641 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5642 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5643 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5644 },
5645 {
5646 .cmd = NL80211_CMD_NEW_INTERFACE,
5647 .doit = nl80211_new_interface,
5648 .policy = nl80211_policy,
5649 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5650 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5651 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5652 },
5653 {
5654 .cmd = NL80211_CMD_DEL_INTERFACE,
5655 .doit = nl80211_del_interface,
5656 .policy = nl80211_policy,
41ade00f 5657 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5659 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5660 },
5661 {
5662 .cmd = NL80211_CMD_GET_KEY,
5663 .doit = nl80211_get_key,
5664 .policy = nl80211_policy,
5665 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5667 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5668 },
5669 {
5670 .cmd = NL80211_CMD_SET_KEY,
5671 .doit = nl80211_set_key,
5672 .policy = nl80211_policy,
5673 .flags = GENL_ADMIN_PERM,
41265714 5674 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5675 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5676 },
5677 {
5678 .cmd = NL80211_CMD_NEW_KEY,
5679 .doit = nl80211_new_key,
5680 .policy = nl80211_policy,
5681 .flags = GENL_ADMIN_PERM,
41265714 5682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5683 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5684 },
5685 {
5686 .cmd = NL80211_CMD_DEL_KEY,
5687 .doit = nl80211_del_key,
5688 .policy = nl80211_policy,
55682965 5689 .flags = GENL_ADMIN_PERM,
41265714 5690 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5691 NL80211_FLAG_NEED_RTNL,
55682965 5692 },
ed1b6cc7
JB		 5693 {
5694 .cmd = NL80211_CMD_SET_BEACON,
5695 .policy = nl80211_policy,
5696 .flags = GENL_ADMIN_PERM,
5697 .doit = nl80211_addset_beacon,
4c476991
JB		 5698 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5699 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5700 },
5701 {
5702 .cmd = NL80211_CMD_NEW_BEACON,
5703 .policy = nl80211_policy,
5704 .flags = GENL_ADMIN_PERM,
5705 .doit = nl80211_addset_beacon,
4c476991
JB		 5706 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5707 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5708 },
5709 {
5710 .cmd = NL80211_CMD_DEL_BEACON,
5711 .policy = nl80211_policy,
5712 .flags = GENL_ADMIN_PERM,
5713 .doit = nl80211_del_beacon,
4c476991
JB		 5714 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5715 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 5716 },
5727ef1b
JB		 5717 {
5718 .cmd = NL80211_CMD_GET_STATION,
5719 .doit = nl80211_get_station,
2ec600d6 5720 .dumpit = nl80211_dump_station,
5727ef1b 5721 .policy = nl80211_policy,
4c476991
JB		 5722 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5723 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5724 },
5725 {
5726 .cmd = NL80211_CMD_SET_STATION,
5727 .doit = nl80211_set_station,
5728 .policy = nl80211_policy,
5729 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5730 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5731 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5732 },
5733 {
5734 .cmd = NL80211_CMD_NEW_STATION,
5735 .doit = nl80211_new_station,
5736 .policy = nl80211_policy,
5737 .flags = GENL_ADMIN_PERM,
41265714 5738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5739 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5740 },
5741 {
5742 .cmd = NL80211_CMD_DEL_STATION,
5743 .doit = nl80211_del_station,
5744 .policy = nl80211_policy,
2ec600d6 5745 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5746 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5747 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5748 },
5749 {
5750 .cmd = NL80211_CMD_GET_MPATH,
5751 .doit = nl80211_get_mpath,
5752 .dumpit = nl80211_dump_mpath,
5753 .policy = nl80211_policy,
5754 .flags = GENL_ADMIN_PERM,
41265714 5755 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5756 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5757 },
5758 {
5759 .cmd = NL80211_CMD_SET_MPATH,
5760 .doit = nl80211_set_mpath,
5761 .policy = nl80211_policy,
5762 .flags = GENL_ADMIN_PERM,
41265714 5763 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5764 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5765 },
5766 {
5767 .cmd = NL80211_CMD_NEW_MPATH,
5768 .doit = nl80211_new_mpath,
5769 .policy = nl80211_policy,
5770 .flags = GENL_ADMIN_PERM,
41265714 5771 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5772 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5773 },
5774 {
5775 .cmd = NL80211_CMD_DEL_MPATH,
5776 .doit = nl80211_del_mpath,
5777 .policy = nl80211_policy,
9f1ba906 5778 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5779 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5780 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5781 },
5782 {
5783 .cmd = NL80211_CMD_SET_BSS,
5784 .doit = nl80211_set_bss,
5785 .policy = nl80211_policy,
b2e1b302 5786 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5787 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5788 NL80211_FLAG_NEED_RTNL,
b2e1b302 5789 },
f130347c
LR		 5790 {
5791 .cmd = NL80211_CMD_GET_REG,
5792 .doit = nl80211_get_reg,
5793 .policy = nl80211_policy,
5794 /* can be retrieved by unprivileged users */
5795 },
b2e1b302
LR		 5796 {
5797 .cmd = NL80211_CMD_SET_REG,
5798 .doit = nl80211_set_reg,
5799 .policy = nl80211_policy,
5800 .flags = GENL_ADMIN_PERM,
5801 },
5802 {
5803 .cmd = NL80211_CMD_REQ_SET_REG,
5804 .doit = nl80211_req_set_reg,
5805 .policy = nl80211_policy,
93da9cc1 5806 .flags = GENL_ADMIN_PERM,
5807 },
5808 {
24bdd9f4
JC		 5809 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5810 .doit = nl80211_get_mesh_config,
93da9cc1 5811 .policy = nl80211_policy,
5812 /* can be retrieved by unprivileged users */
4c476991
JB		 5813 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5814 NL80211_FLAG_NEED_RTNL,
93da9cc1 5815 },
5816 {
24bdd9f4
JC		 5817 .cmd = NL80211_CMD_SET_MESH_CONFIG,
5818 .doit = nl80211_update_mesh_config,
93da9cc1 5819 .policy = nl80211_policy,
9aed3cc1 5820 .flags = GENL_ADMIN_PERM,
29cbe68c 5821 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5822 NL80211_FLAG_NEED_RTNL,
9aed3cc1 5823 },
2a519311
JB		 5824 {
5825 .cmd = NL80211_CMD_TRIGGER_SCAN,
5826 .doit = nl80211_trigger_scan,
5827 .policy = nl80211_policy,
5828 .flags = GENL_ADMIN_PERM,
41265714 5829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5830 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 5831 },
5832 {
5833 .cmd = NL80211_CMD_GET_SCAN,
5834 .policy = nl80211_policy,
5835 .dumpit = nl80211_dump_scan,
5836 },
807f8a8c
LC		 5837 {
5838 .cmd = NL80211_CMD_START_SCHED_SCAN,
5839 .doit = nl80211_start_sched_scan,
5840 .policy = nl80211_policy,
5841 .flags = GENL_ADMIN_PERM,
5842 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5843 NL80211_FLAG_NEED_RTNL,
5844 },
5845 {
5846 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
5847 .doit = nl80211_stop_sched_scan,
5848 .policy = nl80211_policy,
5849 .flags = GENL_ADMIN_PERM,
5850 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
5851 NL80211_FLAG_NEED_RTNL,
5852 },
636a5d36
JM		 5853 {
5854 .cmd = NL80211_CMD_AUTHENTICATE,
5855 .doit = nl80211_authenticate,
5856 .policy = nl80211_policy,
5857 .flags = GENL_ADMIN_PERM,
41265714 5858 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5859 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5860 },
5861 {
5862 .cmd = NL80211_CMD_ASSOCIATE,
5863 .doit = nl80211_associate,
5864 .policy = nl80211_policy,
5865 .flags = GENL_ADMIN_PERM,
41265714 5866 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5867 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5868 },
5869 {
5870 .cmd = NL80211_CMD_DEAUTHENTICATE,
5871 .doit = nl80211_deauthenticate,
5872 .policy = nl80211_policy,
5873 .flags = GENL_ADMIN_PERM,
41265714 5874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5875 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 5876 },
5877 {
5878 .cmd = NL80211_CMD_DISASSOCIATE,
5879 .doit = nl80211_disassociate,
5880 .policy = nl80211_policy,
5881 .flags = GENL_ADMIN_PERM,
41265714 5882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5883 NL80211_FLAG_NEED_RTNL,
636a5d36 5884 },
04a773ad
JB		 5885 {
5886 .cmd = NL80211_CMD_JOIN_IBSS,
5887 .doit = nl80211_join_ibss,
5888 .policy = nl80211_policy,
5889 .flags = GENL_ADMIN_PERM,
41265714 5890 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5891 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 5892 },
5893 {
5894 .cmd = NL80211_CMD_LEAVE_IBSS,
5895 .doit = nl80211_leave_ibss,
5896 .policy = nl80211_policy,
5897 .flags = GENL_ADMIN_PERM,
41265714 5898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5899 NL80211_FLAG_NEED_RTNL,
04a773ad 5900 },
aff89a9b
JB		 5901#ifdef CONFIG_NL80211_TESTMODE
5902 {
5903 .cmd = NL80211_CMD_TESTMODE,
5904 .doit = nl80211_testmode_do,
71063f0e 5905 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 5906 .policy = nl80211_policy,
5907 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5908 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5909 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 5910 },
5911#endif
b23aa676
SO		 5912 {
5913 .cmd = NL80211_CMD_CONNECT,
5914 .doit = nl80211_connect,
5915 .policy = nl80211_policy,
5916 .flags = GENL_ADMIN_PERM,
41265714 5917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5918 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 5919 },
5920 {
5921 .cmd = NL80211_CMD_DISCONNECT,
5922 .doit = nl80211_disconnect,
5923 .policy = nl80211_policy,
5924 .flags = GENL_ADMIN_PERM,
41265714 5925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5926 NL80211_FLAG_NEED_RTNL,
b23aa676 5927 },
463d0183
JB		 5928 {
5929 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
5930 .doit = nl80211_wiphy_netns,
5931 .policy = nl80211_policy,
5932 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5933 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5934 NL80211_FLAG_NEED_RTNL,
463d0183 5935 },
61fa713c
HS		 5936 {
5937 .cmd = NL80211_CMD_GET_SURVEY,
5938 .policy = nl80211_policy,
5939 .dumpit = nl80211_dump_survey,
5940 },
67fbb16b
SO		 5941 {
5942 .cmd = NL80211_CMD_SET_PMKSA,
5943 .doit = nl80211_setdel_pmksa,
5944 .policy = nl80211_policy,
5945 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5946 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5947 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5948 },
5949 {
5950 .cmd = NL80211_CMD_DEL_PMKSA,
5951 .doit = nl80211_setdel_pmksa,
5952 .policy = nl80211_policy,
5953 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5954 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5955 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 5956 },
5957 {
5958 .cmd = NL80211_CMD_FLUSH_PMKSA,
5959 .doit = nl80211_flush_pmksa,
5960 .policy = nl80211_policy,
5961 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5962 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5963 NL80211_FLAG_NEED_RTNL,
67fbb16b 5964 },
9588bbd5
JM		 5965 {
5966 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
5967 .doit = nl80211_remain_on_channel,
5968 .policy = nl80211_policy,
5969 .flags = GENL_ADMIN_PERM,
41265714 5970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5971 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 5972 },
5973 {
5974 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5975 .doit = nl80211_cancel_remain_on_channel,
5976 .policy = nl80211_policy,
5977 .flags = GENL_ADMIN_PERM,
41265714 5978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5979 NL80211_FLAG_NEED_RTNL,
9588bbd5 5980 },
13ae75b1
JM		 5981 {
5982 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
5983 .doit = nl80211_set_tx_bitrate_mask,
5984 .policy = nl80211_policy,
5985 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5986 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5987 NL80211_FLAG_NEED_RTNL,
13ae75b1 5988 },
026331c4 5989 {
2e161f78
JB		 5990 .cmd = NL80211_CMD_REGISTER_FRAME,
5991 .doit = nl80211_register_mgmt,
026331c4
JM		 5992 .policy = nl80211_policy,
5993 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5994 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5995 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 5996 },
5997 {
2e161f78
JB		 5998 .cmd = NL80211_CMD_FRAME,
5999 .doit = nl80211_tx_mgmt,
026331c4 6000 .policy = nl80211_policy,
f7ca38df
JB		 6001 .flags = GENL_ADMIN_PERM,
6002 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6003 NL80211_FLAG_NEED_RTNL,
6004 },
6005 {
6006 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6007 .doit = nl80211_tx_mgmt_cancel_wait,
6008 .policy = nl80211_policy,
026331c4 6009 .flags = GENL_ADMIN_PERM,
41265714 6010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6011 NL80211_FLAG_NEED_RTNL,
026331c4 6012 },
ffb9eb3d
KV		 6013 {
6014 .cmd = NL80211_CMD_SET_POWER_SAVE,
6015 .doit = nl80211_set_power_save,
6016 .policy = nl80211_policy,
6017 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6018 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6019 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6020 },
6021 {
6022 .cmd = NL80211_CMD_GET_POWER_SAVE,
6023 .doit = nl80211_get_power_save,
6024 .policy = nl80211_policy,
6025 /* can be retrieved by unprivileged users */
4c476991
JB		 6026 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6027 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6028 },
d6dc1a38
JO		 6029 {
6030 .cmd = NL80211_CMD_SET_CQM,
6031 .doit = nl80211_set_cqm,
6032 .policy = nl80211_policy,
6033 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6034 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6035 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6036 },
f444de05
JB		 6037 {
6038 .cmd = NL80211_CMD_SET_CHANNEL,
6039 .doit = nl80211_set_channel,
6040 .policy = nl80211_policy,
6041 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6042 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6043 NL80211_FLAG_NEED_RTNL,
f444de05 6044 },
e8347eba
BJ		 6045 {
6046 .cmd = NL80211_CMD_SET_WDS_PEER,
6047 .doit = nl80211_set_wds_peer,
6048 .policy = nl80211_policy,
6049 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6050 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6051 NL80211_FLAG_NEED_RTNL,
e8347eba 6052 },
29cbe68c
JB		 6053 {
6054 .cmd = NL80211_CMD_JOIN_MESH,
6055 .doit = nl80211_join_mesh,
6056 .policy = nl80211_policy,
6057 .flags = GENL_ADMIN_PERM,
6058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6059 NL80211_FLAG_NEED_RTNL,
6060 },
6061 {
6062 .cmd = NL80211_CMD_LEAVE_MESH,
6063 .doit = nl80211_leave_mesh,
6064 .policy = nl80211_policy,
6065 .flags = GENL_ADMIN_PERM,
6066 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6067 NL80211_FLAG_NEED_RTNL,
6068 },
ff1b6e69
JB		 6069 {
6070 .cmd = NL80211_CMD_GET_WOWLAN,
6071 .doit = nl80211_get_wowlan,
6072 .policy = nl80211_policy,
6073 /* can be retrieved by unprivileged users */
6074 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6075 NL80211_FLAG_NEED_RTNL,
6076 },
6077 {
6078 .cmd = NL80211_CMD_SET_WOWLAN,
6079 .doit = nl80211_set_wowlan,
6080 .policy = nl80211_policy,
6081 .flags = GENL_ADMIN_PERM,
6082 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6083 NL80211_FLAG_NEED_RTNL,
6084 },
e5497d76
JB		 6085 {
6086 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6087 .doit = nl80211_set_rekey_data,
6088 .policy = nl80211_policy,
6089 .flags = GENL_ADMIN_PERM,
6090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6091 NL80211_FLAG_NEED_RTNL,
6092 },
55682965 6093};
9588bbd5 6094
6039f6d2
JM		 6095static struct genl_multicast_group nl80211_mlme_mcgrp = {
6096 .name = "mlme",
6097};
55682965
JB		 6098
6099/* multicast groups */
6100static struct genl_multicast_group nl80211_config_mcgrp = {
6101 .name = "config",
6102};
2a519311
JB		 6103static struct genl_multicast_group nl80211_scan_mcgrp = {
6104 .name = "scan",
6105};
73d54c9e
LR		 6106static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6107 .name = "regulatory",
6108};
55682965
JB		 6109
6110/* notification functions */
6111
6112void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6113{
6114 struct sk_buff *msg;
6115
fd2120ca 6116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6117 if (!msg)
6118 return;
6119
6120 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6121 nlmsg_free(msg);
6122 return;
6123 }
6124
463d0183
JB		 6125 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6126 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6127}
6128
362a415d
JB		 6129static int nl80211_add_scan_req(struct sk_buff *msg,
6130 struct cfg80211_registered_device *rdev)
6131{
6132 struct cfg80211_scan_request *req = rdev->scan_req;
6133 struct nlattr *nest;
6134 int i;
6135
667503dd
JB		 6136 ASSERT_RDEV_LOCK(rdev);
6137
362a415d
JB		 6138 if (WARN_ON(!req))
6139 return 0;
6140
6141 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6142 if (!nest)
6143 goto nla_put_failure;
6144 for (i = 0; i < req->n_ssids; i++)
6145 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6146 nla_nest_end(msg, nest);
6147
6148 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6149 if (!nest)
6150 goto nla_put_failure;
6151 for (i = 0; i < req->n_channels; i++)
6152 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6153 nla_nest_end(msg, nest);
6154
6155 if (req->ie)
6156 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6157
6158 return 0;
6159 nla_put_failure:
6160 return -ENOBUFS;
6161}
6162
a538e2d5
JB		 6163static int nl80211_send_scan_msg(struct sk_buff *msg,
6164 struct cfg80211_registered_device *rdev,
6165 struct net_device *netdev,
6166 u32 pid, u32 seq, int flags,
6167 u32 cmd)
2a519311
JB		 6168{
6169 void *hdr;
6170
6171 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6172 if (!hdr)
6173 return -1;
6174
b5850a7a 6175 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6176 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6177
362a415d
JB		 6178 /* ignore errors and send incomplete event anyway */
6179 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6180
6181 return genlmsg_end(msg, hdr);
6182
6183 nla_put_failure:
6184 genlmsg_cancel(msg, hdr);
6185 return -EMSGSIZE;
6186}
6187
807f8a8c
LC		 6188static int
6189nl80211_send_sched_scan_msg(struct sk_buff *msg,
6190 struct cfg80211_registered_device *rdev,
6191 struct net_device *netdev,
6192 u32 pid, u32 seq, int flags, u32 cmd)
6193{
6194 void *hdr;
6195
6196 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6197 if (!hdr)
6198 return -1;
6199
6200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6202
6203 return genlmsg_end(msg, hdr);
6204
6205 nla_put_failure:
6206 genlmsg_cancel(msg, hdr);
6207 return -EMSGSIZE;
6208}
6209
a538e2d5
JB		 6210void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6211 struct net_device *netdev)
6212{
6213 struct sk_buff *msg;
6214
6215 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6216 if (!msg)
6217 return;
6218
6219 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6220 NL80211_CMD_TRIGGER_SCAN) < 0) {
6221 nlmsg_free(msg);
6222 return;
6223 }
6224
463d0183
JB		 6225 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6226 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6227}
6228
2a519311
JB		 6229void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6230 struct net_device *netdev)
6231{
6232 struct sk_buff *msg;
6233
fd2120ca 6234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6235 if (!msg)
6236 return;
6237
a538e2d5
JB		 6238 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6239 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6240 nlmsg_free(msg);
6241 return;
6242 }
6243
463d0183
JB		 6244 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6245 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6246}
6247
6248void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6249 struct net_device *netdev)
6250{
6251 struct sk_buff *msg;
6252
fd2120ca 6253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6254 if (!msg)
6255 return;
6256
a538e2d5
JB		 6257 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6258 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6259 nlmsg_free(msg);
6260 return;
6261 }
6262
463d0183
JB		 6263 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6264 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6265}
6266
807f8a8c
LC		 6267void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6268 struct net_device *netdev)
6269{
6270 struct sk_buff *msg;
6271
6272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6273 if (!msg)
6274 return;
6275
6276 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6277 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6278 nlmsg_free(msg);
6279 return;
6280 }
6281
6282 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6283 nl80211_scan_mcgrp.id, GFP_KERNEL);
6284}
6285
6286void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6287 struct net_device *netdev, u32 cmd)
6288{
6289 struct sk_buff *msg;
6290
6291 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6292 if (!msg)
6293 return;
6294
6295 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6296 nlmsg_free(msg);
6297 return;
6298 }
6299
6300 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6301 nl80211_scan_mcgrp.id, GFP_KERNEL);
6302}
6303
73d54c9e
LR		 6304/*
6305 * This can happen on global regulatory changes or device specific settings
6306 * based on custom world regulatory domains.
6307 */
6308void nl80211_send_reg_change_event(struct regulatory_request *request)
6309{
6310 struct sk_buff *msg;
6311 void *hdr;
6312
fd2120ca 6313 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6314 if (!msg)
6315 return;
6316
6317 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6318 if (!hdr) {
6319 nlmsg_free(msg);
6320 return;
6321 }
6322
6323 /* Userspace can always count this one always being set */
6324 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6325
6326 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6327 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6328 NL80211_REGDOM_TYPE_WORLD);
6329 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6330 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6331 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6332 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6333 request->intersect)
6334 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6335 NL80211_REGDOM_TYPE_INTERSECTION);
6336 else {
6337 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6338 NL80211_REGDOM_TYPE_COUNTRY);
6339 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6340 }
6341
6342 if (wiphy_idx_valid(request->wiphy_idx))
6343 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6344
6345 if (genlmsg_end(msg, hdr) < 0) {
6346 nlmsg_free(msg);
6347 return;
6348 }
6349
bc43b28c 6350 rcu_read_lock();
463d0183 6351 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6352 GFP_ATOMIC);
6353 rcu_read_unlock();
73d54c9e
LR		 6354
6355 return;
6356
6357nla_put_failure:
6358 genlmsg_cancel(msg, hdr);
6359 nlmsg_free(msg);
6360}
6361
6039f6d2
JM		 6362static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6363 struct net_device *netdev,
6364 const u8 *buf, size_t len,
e6d6e342 6365 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6366{
6367 struct sk_buff *msg;
6368 void *hdr;
6369
e6d6e342 6370 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6371 if (!msg)
6372 return;
6373
6374 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6375 if (!hdr) {
6376 nlmsg_free(msg);
6377 return;
6378 }
6379
6380 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6381 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6382 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6383
6384 if (genlmsg_end(msg, hdr) < 0) {
6385 nlmsg_free(msg);
6386 return;
6387 }
6388
463d0183
JB		 6389 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6390 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6391 return;
6392
6393 nla_put_failure:
6394 genlmsg_cancel(msg, hdr);
6395 nlmsg_free(msg);
6396}
6397
6398void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6399 struct net_device *netdev, const u8 *buf,
6400 size_t len, gfp_t gfp)
6039f6d2
JM		 6401{
6402 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6403 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6404}
6405
6406void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6407 struct net_device *netdev, const u8 *buf,
e6d6e342 6408 size_t len, gfp_t gfp)
6039f6d2 6409{
e6d6e342
JB		 6410 nl80211_send_mlme_event(rdev, netdev, buf, len,
6411 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6412}
6413
53b46b84 6414void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6415 struct net_device *netdev, const u8 *buf,
6416 size_t len, gfp_t gfp)
6039f6d2
JM		 6417{
6418 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6419 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6420}
6421
53b46b84
JM		 6422void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6423 struct net_device *netdev, const u8 *buf,
e6d6e342 6424 size_t len, gfp_t gfp)
6039f6d2
JM		 6425{
6426 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6427 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6428}
6429
cf4e594e
JM		 6430void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6431 struct net_device *netdev, const u8 *buf,
6432 size_t len, gfp_t gfp)
6433{
6434 nl80211_send_mlme_event(rdev, netdev, buf, len,
6435 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6436}
6437
6438void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6439 struct net_device *netdev, const u8 *buf,
6440 size_t len, gfp_t gfp)
6441{
6442 nl80211_send_mlme_event(rdev, netdev, buf, len,
6443 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6444}
6445
1b06bb40
LR		 6446static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6447 struct net_device *netdev, int cmd,
e6d6e342 6448 const u8 *addr, gfp_t gfp)
1965c853
JM		 6449{
6450 struct sk_buff *msg;
6451 void *hdr;
6452
e6d6e342 6453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6454 if (!msg)
6455 return;
6456
6457 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6458 if (!hdr) {
6459 nlmsg_free(msg);
6460 return;
6461 }
6462
6463 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6464 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6465 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6466 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6467
6468 if (genlmsg_end(msg, hdr) < 0) {
6469 nlmsg_free(msg);
6470 return;
6471 }
6472
463d0183
JB		 6473 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6474 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6475 return;
6476
6477 nla_put_failure:
6478 genlmsg_cancel(msg, hdr);
6479 nlmsg_free(msg);
6480}
6481
6482void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6483 struct net_device *netdev, const u8 *addr,
6484 gfp_t gfp)
1965c853
JM		 6485{
6486 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6487 addr, gfp);
1965c853
JM		 6488}
6489
6490void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6491 struct net_device *netdev, const u8 *addr,
6492 gfp_t gfp)
1965c853 6493{
e6d6e342
JB		 6494 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6495 addr, gfp);
1965c853
JM		 6496}
6497
b23aa676
SO		 6498void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6499 struct net_device *netdev, const u8 *bssid,
6500 const u8 *req_ie, size_t req_ie_len,
6501 const u8 *resp_ie, size_t resp_ie_len,
6502 u16 status, gfp_t gfp)
6503{
6504 struct sk_buff *msg;
6505 void *hdr;
6506
6507 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6508 if (!msg)
6509 return;
6510
6511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6512 if (!hdr) {
6513 nlmsg_free(msg);
6514 return;
6515 }
6516
6517 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6518 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6519 if (bssid)
6520 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6521 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6522 if (req_ie)
6523 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6524 if (resp_ie)
6525 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6526
6527 if (genlmsg_end(msg, hdr) < 0) {
6528 nlmsg_free(msg);
6529 return;
6530 }
6531
463d0183
JB		 6532 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6533 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6534 return;
6535
6536 nla_put_failure:
6537 genlmsg_cancel(msg, hdr);
6538 nlmsg_free(msg);
6539
6540}
6541
6542void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6543 struct net_device *netdev, const u8 *bssid,
6544 const u8 *req_ie, size_t req_ie_len,
6545 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6546{
6547 struct sk_buff *msg;
6548 void *hdr;
6549
6550 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6551 if (!msg)
6552 return;
6553
6554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6555 if (!hdr) {
6556 nlmsg_free(msg);
6557 return;
6558 }
6559
6560 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6561 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6562 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6563 if (req_ie)
6564 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6565 if (resp_ie)
6566 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6567
6568 if (genlmsg_end(msg, hdr) < 0) {
6569 nlmsg_free(msg);
6570 return;
6571 }
6572
463d0183
JB		 6573 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6574 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6575 return;
6576
6577 nla_put_failure:
6578 genlmsg_cancel(msg, hdr);
6579 nlmsg_free(msg);
6580
6581}
6582
6583void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6584 struct net_device *netdev, u16 reason,
667503dd 6585 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6586{
6587 struct sk_buff *msg;
6588 void *hdr;
6589
667503dd 6590 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6591 if (!msg)
6592 return;
6593
6594 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6595 if (!hdr) {
6596 nlmsg_free(msg);
6597 return;
6598 }
6599
6600 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6601 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6602 if (from_ap && reason)
6603 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6604 if (from_ap)
6605 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6606 if (ie)
6607 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6608
6609 if (genlmsg_end(msg, hdr) < 0) {
6610 nlmsg_free(msg);
6611 return;
6612 }
6613
463d0183
JB		 6614 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6615 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6616 return;
6617
6618 nla_put_failure:
6619 genlmsg_cancel(msg, hdr);
6620 nlmsg_free(msg);
6621
6622}
6623
04a773ad
JB		 6624void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6625 struct net_device *netdev, const u8 *bssid,
6626 gfp_t gfp)
6627{
6628 struct sk_buff *msg;
6629 void *hdr;
6630
fd2120ca 6631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6632 if (!msg)
6633 return;
6634
6635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6636 if (!hdr) {
6637 nlmsg_free(msg);
6638 return;
6639 }
6640
6641 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6642 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6643 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6644
6645 if (genlmsg_end(msg, hdr) < 0) {
6646 nlmsg_free(msg);
6647 return;
6648 }
6649
463d0183
JB		 6650 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6651 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6652 return;
6653
6654 nla_put_failure:
6655 genlmsg_cancel(msg, hdr);
6656 nlmsg_free(msg);
6657}
6658
c93b5e71
JC		 6659void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6660 struct net_device *netdev,
6661 const u8 *macaddr, const u8* ie, u8 ie_len,
6662 gfp_t gfp)
6663{
6664 struct sk_buff *msg;
6665 void *hdr;
6666
6667 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6668 if (!msg)
6669 return;
6670
6671 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6672 if (!hdr) {
6673 nlmsg_free(msg);
6674 return;
6675 }
6676
6677 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6678 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6679 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6680 if (ie_len && ie)
6681 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6682
6683 if (genlmsg_end(msg, hdr) < 0) {
6684 nlmsg_free(msg);
6685 return;
6686 }
6687
6688 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6689 nl80211_mlme_mcgrp.id, gfp);
6690 return;
6691
6692 nla_put_failure:
6693 genlmsg_cancel(msg, hdr);
6694 nlmsg_free(msg);
6695}
6696
a3b8b056
JM		 6697void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6698 struct net_device *netdev, const u8 *addr,
6699 enum nl80211_key_type key_type, int key_id,
e6d6e342 6700 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 6701{
6702 struct sk_buff *msg;
6703 void *hdr;
6704
e6d6e342 6705 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 6706 if (!msg)
6707 return;
6708
6709 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6710 if (!hdr) {
6711 nlmsg_free(msg);
6712 return;
6713 }
6714
6715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6716 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6717 if (addr)
6718 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6719 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 6720 if (key_id != -1)
6721 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 6722 if (tsc)
6723 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6724
6725 if (genlmsg_end(msg, hdr) < 0) {
6726 nlmsg_free(msg);
6727 return;
6728 }
6729
463d0183
JB		 6730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6731 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 6732 return;
6733
6734 nla_put_failure:
6735 genlmsg_cancel(msg, hdr);
6736 nlmsg_free(msg);
6737}
6738
6bad8766
LR		 6739void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6740 struct ieee80211_channel *channel_before,
6741 struct ieee80211_channel *channel_after)
6742{
6743 struct sk_buff *msg;
6744 void *hdr;
6745 struct nlattr *nl_freq;
6746
fd2120ca 6747 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 6748 if (!msg)
6749 return;
6750
6751 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6752 if (!hdr) {
6753 nlmsg_free(msg);
6754 return;
6755 }
6756
6757 /*
6758 * Since we are applying the beacon hint to a wiphy we know its
6759 * wiphy_idx is valid
6760 */
6761 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6762
6763 /* Before */
6764 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6765 if (!nl_freq)
6766 goto nla_put_failure;
6767 if (nl80211_msg_put_channel(msg, channel_before))
6768 goto nla_put_failure;
6769 nla_nest_end(msg, nl_freq);
6770
6771 /* After */
6772 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6773 if (!nl_freq)
6774 goto nla_put_failure;
6775 if (nl80211_msg_put_channel(msg, channel_after))
6776 goto nla_put_failure;
6777 nla_nest_end(msg, nl_freq);
6778
6779 if (genlmsg_end(msg, hdr) < 0) {
6780 nlmsg_free(msg);
6781 return;
6782 }
6783
463d0183
JB		 6784 rcu_read_lock();
6785 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6786 GFP_ATOMIC);
6787 rcu_read_unlock();
6bad8766
LR		 6788
6789 return;
6790
6791nla_put_failure:
6792 genlmsg_cancel(msg, hdr);
6793 nlmsg_free(msg);
6794}
6795
9588bbd5
JM		 6796static void nl80211_send_remain_on_chan_event(
6797 int cmd, struct cfg80211_registered_device *rdev,
6798 struct net_device *netdev, u64 cookie,
6799 struct ieee80211_channel *chan,
6800 enum nl80211_channel_type channel_type,
6801 unsigned int duration, gfp_t gfp)
6802{
6803 struct sk_buff *msg;
6804 void *hdr;
6805
6806 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6807 if (!msg)
6808 return;
6809
6810 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6811 if (!hdr) {
6812 nlmsg_free(msg);
6813 return;
6814 }
6815
6816 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6817 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6818 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
6819 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
6820 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6821
6822 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
6823 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
6824
6825 if (genlmsg_end(msg, hdr) < 0) {
6826 nlmsg_free(msg);
6827 return;
6828 }
6829
6830 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6831 nl80211_mlme_mcgrp.id, gfp);
6832 return;
6833
6834 nla_put_failure:
6835 genlmsg_cancel(msg, hdr);
6836 nlmsg_free(msg);
6837}
6838
6839void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
6840 struct net_device *netdev, u64 cookie,
6841 struct ieee80211_channel *chan,
6842 enum nl80211_channel_type channel_type,
6843 unsigned int duration, gfp_t gfp)
6844{
6845 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
6846 rdev, netdev, cookie, chan,
6847 channel_type, duration, gfp);
6848}
6849
6850void nl80211_send_remain_on_channel_cancel(
6851 struct cfg80211_registered_device *rdev, struct net_device *netdev,
6852 u64 cookie, struct ieee80211_channel *chan,
6853 enum nl80211_channel_type channel_type, gfp_t gfp)
6854{
6855 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6856 rdev, netdev, cookie, chan,
6857 channel_type, 0, gfp);
6858}
6859
98b62183
JB		 6860void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
6861 struct net_device *dev, const u8 *mac_addr,
6862 struct station_info *sinfo, gfp_t gfp)
6863{
6864 struct sk_buff *msg;
6865
6866 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6867 if (!msg)
6868 return;
6869
6870 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
6871 nlmsg_free(msg);
6872 return;
6873 }
6874
6875 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6876 nl80211_mlme_mcgrp.id, gfp);
6877}
6878
ec15e68b
JM		 6879void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
6880 struct net_device *dev, const u8 *mac_addr,
6881 gfp_t gfp)
6882{
6883 struct sk_buff *msg;
6884 void *hdr;
6885
6886 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6887 if (!msg)
6888 return;
6889
6890 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
6891 if (!hdr) {
6892 nlmsg_free(msg);
6893 return;
6894 }
6895
6896 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
6897 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
6898
6899 if (genlmsg_end(msg, hdr) < 0) {
6900 nlmsg_free(msg);
6901 return;
6902 }
6903
6904 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6905 nl80211_mlme_mcgrp.id, gfp);
6906 return;
6907
6908 nla_put_failure:
6909 genlmsg_cancel(msg, hdr);
6910 nlmsg_free(msg);
6911}
6912
2e161f78
JB		 6913int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
6914 struct net_device *netdev, u32 nlpid,
6915 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 6916{
6917 struct sk_buff *msg;
6918 void *hdr;
6919 int err;
6920
6921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6922 if (!msg)
6923 return -ENOMEM;
6924
2e161f78 6925 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 6926 if (!hdr) {
6927 nlmsg_free(msg);
6928 return -ENOMEM;
6929 }
6930
6931 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6932 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6933 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
6934 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6935
6936 err = genlmsg_end(msg, hdr);
6937 if (err < 0) {
6938 nlmsg_free(msg);
6939 return err;
6940 }
6941
6942 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
6943 if (err < 0)
6944 return err;
6945 return 0;
6946
6947 nla_put_failure:
6948 genlmsg_cancel(msg, hdr);
6949 nlmsg_free(msg);
6950 return -ENOBUFS;
6951}
6952
2e161f78
JB		 6953void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
6954 struct net_device *netdev, u64 cookie,
6955 const u8 *buf, size_t len, bool ack,
6956 gfp_t gfp)
026331c4
JM		 6957{
6958 struct sk_buff *msg;
6959 void *hdr;
6960
6961 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6962 if (!msg)
6963 return;
6964
2e161f78 6965 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 6966 if (!hdr) {
6967 nlmsg_free(msg);
6968 return;
6969 }
6970
6971 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6972 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6973 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6974 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6975 if (ack)
6976 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
6977
6978 if (genlmsg_end(msg, hdr) < 0) {
6979 nlmsg_free(msg);
6980 return;
6981 }
6982
6983 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
6984 return;
6985
6986 nla_put_failure:
6987 genlmsg_cancel(msg, hdr);
6988 nlmsg_free(msg);
6989}
6990
d6dc1a38
JO		 6991void
6992nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
6993 struct net_device *netdev,
6994 enum nl80211_cqm_rssi_threshold_event rssi_event,
6995 gfp_t gfp)
6996{
6997 struct sk_buff *msg;
6998 struct nlattr *pinfoattr;
6999 void *hdr;
7000
7001 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7002 if (!msg)
7003 return;
7004
7005 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7006 if (!hdr) {
7007 nlmsg_free(msg);
7008 return;
7009 }
7010
7011 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7012 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7013
7014 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7015 if (!pinfoattr)
7016 goto nla_put_failure;
7017
7018 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7019 rssi_event);
7020
7021 nla_nest_end(msg, pinfoattr);
7022
7023 if (genlmsg_end(msg, hdr) < 0) {
7024 nlmsg_free(msg);
7025 return;
7026 }
7027
7028 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7029 nl80211_mlme_mcgrp.id, gfp);
7030 return;
7031
7032 nla_put_failure:
7033 genlmsg_cancel(msg, hdr);
7034 nlmsg_free(msg);
7035}
7036
e5497d76
JB		 7037void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7038 struct net_device *netdev, const u8 *bssid,
7039 const u8 *replay_ctr, gfp_t gfp)
7040{
7041 struct sk_buff *msg;
7042 struct nlattr *rekey_attr;
7043 void *hdr;
7044
7045 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7046 if (!msg)
7047 return;
7048
7049 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7050 if (!hdr) {
7051 nlmsg_free(msg);
7052 return;
7053 }
7054
7055 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7056 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7057 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7058
7059 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7060 if (!rekey_attr)
7061 goto nla_put_failure;
7062
7063 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7064 NL80211_REPLAY_CTR_LEN, replay_ctr);
7065
7066 nla_nest_end(msg, rekey_attr);
7067
7068 if (genlmsg_end(msg, hdr) < 0) {
7069 nlmsg_free(msg);
7070 return;
7071 }
7072
7073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7074 nl80211_mlme_mcgrp.id, gfp);
7075 return;
7076
7077 nla_put_failure:
7078 genlmsg_cancel(msg, hdr);
7079 nlmsg_free(msg);
7080}
7081
c063dbf5
JB		 7082void
7083nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7084 struct net_device *netdev, const u8 *peer,
7085 u32 num_packets, gfp_t gfp)
7086{
7087 struct sk_buff *msg;
7088 struct nlattr *pinfoattr;
7089 void *hdr;
7090
7091 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7092 if (!msg)
7093 return;
7094
7095 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7096 if (!hdr) {
7097 nlmsg_free(msg);
7098 return;
7099 }
7100
7101 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7102 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7103 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7104
7105 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7106 if (!pinfoattr)
7107 goto nla_put_failure;
7108
7109 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7110
7111 nla_nest_end(msg, pinfoattr);
7112
7113 if (genlmsg_end(msg, hdr) < 0) {
7114 nlmsg_free(msg);
7115 return;
7116 }
7117
7118 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7119 nl80211_mlme_mcgrp.id, gfp);
7120 return;
7121
7122 nla_put_failure:
7123 genlmsg_cancel(msg, hdr);
7124 nlmsg_free(msg);
7125}
7126
026331c4
JM		 7127static int nl80211_netlink_notify(struct notifier_block * nb,
7128 unsigned long state,
7129 void *_notify)
7130{
7131 struct netlink_notify *notify = _notify;
7132 struct cfg80211_registered_device *rdev;
7133 struct wireless_dev *wdev;
7134
7135 if (state != NETLINK_URELEASE)
7136 return NOTIFY_DONE;
7137
7138 rcu_read_lock();
7139
7140 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7141 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7142 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 7143
7144 rcu_read_unlock();
7145
7146 return NOTIFY_DONE;
7147}
7148
7149static struct notifier_block nl80211_netlink_notifier = {
7150 .notifier_call = nl80211_netlink_notify,
7151};
7152
55682965
JB		 7153/* initialisation/exit functions */
7154
7155int nl80211_init(void)
7156{
0d63cbb5 7157 int err;
55682965 7158
0d63cbb5
MM		 7159 err = genl_register_family_with_ops(&nl80211_fam,
7160 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7161 if (err)
7162 return err;
7163
55682965
JB		 7164 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7165 if (err)
7166 goto err_out;
7167
2a519311
JB		 7168 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7169 if (err)
7170 goto err_out;
7171
73d54c9e
LR		 7172 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7173 if (err)
7174 goto err_out;
7175
6039f6d2
JM		 7176 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7177 if (err)
7178 goto err_out;
7179
aff89a9b
JB		 7180#ifdef CONFIG_NL80211_TESTMODE
7181 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7182 if (err)
7183 goto err_out;
7184#endif
7185
026331c4
JM		 7186 err = netlink_register_notifier(&nl80211_netlink_notifier);
7187 if (err)
7188 goto err_out;
7189
55682965
JB		 7190 return 0;
7191 err_out:
7192 genl_unregister_family(&nl80211_fam);
7193 return err;
7194}
7195
7196void nl80211_exit(void)
7197{
026331c4 7198 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7199 genl_unregister_family(&nl80211_fam);
7200}
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