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iwlagn: fix compilation when debug flags is unset
[deliverable/linux.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
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
463d0183 50static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 51 struct cfg80211_registered_device **rdev,
55682965
JB		 52 struct net_device **dev)
53{
463d0183 54 struct nlattr **attrs = info->attrs;
55682965
JB		 55 int ifindex;
56
bba95fef 57 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 58 return -EINVAL;
59
bba95fef 60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 62 if (!*dev)
63 return -ENODEV;
64
463d0183 65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 66 if (IS_ERR(*rdev)) {
55682965 67 dev_put(*dev);
79c97e97 68 return PTR_ERR(*rdev);
55682965
JB		 69 }
70
71 return 0;
72}
73
74/* policy for the attributes */
b54452b0 75static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 78 .len = 20-1 },
31888487 79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 87
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 91
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 94
b9454e83 95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 102 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 103
104 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
105 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
106 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
107 .len = IEEE80211_MAX_DATA_LEN },
108 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
109 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 110 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
111 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
113 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 115 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 116 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 117 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 118 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
119 .len = IEEE80211_MAX_MESH_ID_LEN },
120 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 121
b2e1b302
LR		 122 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
123 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124
9f1ba906
JM		 125 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 128 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
129 .len = NL80211_MAX_SUPP_RATES },
50b12f59 130 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 131
24bdd9f4 132 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 133 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 134
36aedc90
JM		 135 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
136 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 137
138 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
139 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
140 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 141 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
142 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 143
144 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
145 .len = IEEE80211_MAX_SSID_LEN },
146 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
147 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 148 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 149 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 150 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 151 [NL80211_ATTR_STA_FLAGS2] = {
152 .len = sizeof(struct nl80211_sta_flag_update),
153 },
3f77316c 154 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 155 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
156 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 157 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
158 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
159 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 160 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 161 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 162 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
163 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 164 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
165 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 166 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 167 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
168 .len = IEEE80211_MAX_DATA_LEN },
169 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 170 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 171 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 172 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 173 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 174 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
175 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 176 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 177 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
178 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 179 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 180 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 181 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 182 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 183 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 184 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 185 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 186 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 187 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 188 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
190 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
191 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 192 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 193 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
55682965
JB		 194};
195
e31b8213 196/* policy for the key attributes */
b54452b0 197static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 198 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 199 [NL80211_KEY_IDX] = { .type = NLA_U8 },
200 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
201 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
202 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
203 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 204 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 205 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
206};
207
208/* policy for the key default flags */
209static const struct nla_policy
210nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
211 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
212 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 213};
214
ff1b6e69
JB		 215/* policy for WoWLAN attributes */
216static const struct nla_policy
217nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
218 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
219 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
220 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
221 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 222 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
223 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 226};
227
e5497d76
JB		 228/* policy for GTK rekey offload attributes */
229static const struct nla_policy
230nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
231 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
232 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
233 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
234};
235
a1f1c21c
LC		 236static const struct nla_policy
237nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
238 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
239 .len = IEEE80211_MAX_SSID_LEN },
240};
241
a043897a
HS		 242/* ifidx get helper */
243static int nl80211_get_ifidx(struct netlink_callback *cb)
244{
245 int res;
246
247 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
248 nl80211_fam.attrbuf, nl80211_fam.maxattr,
249 nl80211_policy);
250 if (res)
251 return res;
252
253 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
254 return -EINVAL;
255
256 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
257 if (!res)
258 return -EINVAL;
259 return res;
260}
261
67748893
JB		 262static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
263 struct netlink_callback *cb,
264 struct cfg80211_registered_device **rdev,
265 struct net_device **dev)
266{
267 int ifidx = cb->args[0];
268 int err;
269
270 if (!ifidx)
271 ifidx = nl80211_get_ifidx(cb);
272 if (ifidx < 0)
273 return ifidx;
274
275 cb->args[0] = ifidx;
276
277 rtnl_lock();
278
279 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
280 if (!*dev) {
281 err = -ENODEV;
282 goto out_rtnl;
283 }
284
285 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 286 if (IS_ERR(*rdev)) {
287 err = PTR_ERR(*rdev);
67748893
JB		 288 goto out_rtnl;
289 }
290
291 return 0;
292 out_rtnl:
293 rtnl_unlock();
294 return err;
295}
296
297static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
298{
299 cfg80211_unlock_rdev(rdev);
300 rtnl_unlock();
301}
302
f4a11bb0
JB		 303/* IE validation */
304static bool is_valid_ie_attr(const struct nlattr *attr)
305{
306 const u8 *pos;
307 int len;
308
309 if (!attr)
310 return true;
311
312 pos = nla_data(attr);
313 len = nla_len(attr);
314
315 while (len) {
316 u8 elemlen;
317
318 if (len < 2)
319 return false;
320 len -= 2;
321
322 elemlen = pos[1];
323 if (elemlen > len)
324 return false;
325
326 len -= elemlen;
327 pos += 2 + elemlen;
328 }
329
330 return true;
331}
332
55682965
JB		 333/* message building helper */
334static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
335 int flags, u8 cmd)
336{
337 /* since there is no private header just add the generic one */
338 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
339}
340
5dab3b8a
LR		 341static int nl80211_msg_put_channel(struct sk_buff *msg,
342 struct ieee80211_channel *chan)
343{
344 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
345 chan->center_freq);
346
347 if (chan->flags & IEEE80211_CHAN_DISABLED)
348 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
349 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
350 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
351 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
352 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
353 if (chan->flags & IEEE80211_CHAN_RADAR)
354 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
355
356 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
357 DBM_TO_MBM(chan->max_power));
358
359 return 0;
360
361 nla_put_failure:
362 return -ENOBUFS;
363}
364
55682965
JB		 365/* netlink command implementations */
366
b9454e83
JB		 367struct key_parse {
368 struct key_params p;
369 int idx;
e31b8213 370 int type;
b9454e83 371 bool def, defmgmt;
dbd2fd65 372 bool def_uni, def_multi;
b9454e83
JB		 373};
374
375static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
376{
377 struct nlattr *tb[NL80211_KEY_MAX + 1];
378 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
379 nl80211_key_policy);
380 if (err)
381 return err;
382
383 k->def = !!tb[NL80211_KEY_DEFAULT];
384 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
385
dbd2fd65
JB		 386 if (k->def) {
387 k->def_uni = true;
388 k->def_multi = true;
389 }
390 if (k->defmgmt)
391 k->def_multi = true;
392
b9454e83
JB		 393 if (tb[NL80211_KEY_IDX])
394 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
395
396 if (tb[NL80211_KEY_DATA]) {
397 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
398 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
399 }
400
401 if (tb[NL80211_KEY_SEQ]) {
402 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
403 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
404 }
405
406 if (tb[NL80211_KEY_CIPHER])
407 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
408
e31b8213
JB		 409 if (tb[NL80211_KEY_TYPE]) {
410 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
411 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
412 return -EINVAL;
413 }
414
dbd2fd65
JB		 415 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
416 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
417 int err = nla_parse_nested(kdt,
418 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
419 tb[NL80211_KEY_DEFAULT_TYPES],
420 nl80211_key_default_policy);
421 if (err)
422 return err;
423
424 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
425 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
426 }
427
b9454e83
JB		 428 return 0;
429}
430
431static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
432{
433 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
434 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
435 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
436 }
437
438 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
439 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
440 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
441 }
442
443 if (info->attrs[NL80211_ATTR_KEY_IDX])
444 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
445
446 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
447 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
448
449 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
450 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
451
dbd2fd65
JB		 452 if (k->def) {
453 k->def_uni = true;
454 k->def_multi = true;
455 }
456 if (k->defmgmt)
457 k->def_multi = true;
458
e31b8213
JB		 459 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
460 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
461 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
462 return -EINVAL;
463 }
464
dbd2fd65
JB		 465 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
466 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
467 int err = nla_parse_nested(
468 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
469 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
470 nl80211_key_default_policy);
471 if (err)
472 return err;
473
474 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
475 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
476 }
477
b9454e83
JB		 478 return 0;
479}
480
481static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
482{
483 int err;
484
485 memset(k, 0, sizeof(*k));
486 k->idx = -1;
e31b8213 487 k->type = -1;
b9454e83
JB		 488
489 if (info->attrs[NL80211_ATTR_KEY])
490 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
491 else
492 err = nl80211_parse_key_old(info, k);
493
494 if (err)
495 return err;
496
497 if (k->def && k->defmgmt)
498 return -EINVAL;
499
dbd2fd65
JB		 500 if (k->defmgmt) {
501 if (k->def_uni || !k->def_multi)
502 return -EINVAL;
503 }
504
b9454e83
JB		 505 if (k->idx != -1) {
506 if (k->defmgmt) {
507 if (k->idx < 4 || k->idx > 5)
508 return -EINVAL;
509 } else if (k->def) {
510 if (k->idx < 0 || k->idx > 3)
511 return -EINVAL;
512 } else {
513 if (k->idx < 0 || k->idx > 5)
514 return -EINVAL;
515 }
516 }
517
518 return 0;
519}
520
fffd0934
JB		 521static struct cfg80211_cached_keys *
522nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
523 struct nlattr *keys)
524{
525 struct key_parse parse;
526 struct nlattr *key;
527 struct cfg80211_cached_keys *result;
528 int rem, err, def = 0;
529
530 result = kzalloc(sizeof(*result), GFP_KERNEL);
531 if (!result)
532 return ERR_PTR(-ENOMEM);
533
534 result->def = -1;
535 result->defmgmt = -1;
536
537 nla_for_each_nested(key, keys, rem) {
538 memset(&parse, 0, sizeof(parse));
539 parse.idx = -1;
540
541 err = nl80211_parse_key_new(key, &parse);
542 if (err)
543 goto error;
544 err = -EINVAL;
545 if (!parse.p.key)
546 goto error;
547 if (parse.idx < 0 || parse.idx > 4)
548 goto error;
549 if (parse.def) {
550 if (def)
551 goto error;
552 def = 1;
553 result->def = parse.idx;
dbd2fd65
JB		 554 if (!parse.def_uni || !parse.def_multi)
555 goto error;
fffd0934
JB		 556 } else if (parse.defmgmt)
557 goto error;
558 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 559 parse.idx, false, NULL);
fffd0934
JB		 560 if (err)
561 goto error;
562 result->params[parse.idx].cipher = parse.p.cipher;
563 result->params[parse.idx].key_len = parse.p.key_len;
564 result->params[parse.idx].key = result->data[parse.idx];
565 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
566 }
567
568 return result;
569 error:
570 kfree(result);
571 return ERR_PTR(err);
572}
573
574static int nl80211_key_allowed(struct wireless_dev *wdev)
575{
576 ASSERT_WDEV_LOCK(wdev);
577
fffd0934
JB		 578 switch (wdev->iftype) {
579 case NL80211_IFTYPE_AP:
580 case NL80211_IFTYPE_AP_VLAN:
074ac8df 581 case NL80211_IFTYPE_P2P_GO:
ff973af7 582 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 583 break;
584 case NL80211_IFTYPE_ADHOC:
585 if (!wdev->current_bss)
586 return -ENOLINK;
587 break;
588 case NL80211_IFTYPE_STATION:
074ac8df 589 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 590 if (wdev->sme_state != CFG80211_SME_CONNECTED)
591 return -ENOLINK;
592 break;
593 default:
594 return -EINVAL;
595 }
596
597 return 0;
598}
599
7527a782
JB		 600static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
601{
602 struct nlattr *nl_modes = nla_nest_start(msg, attr);
603 int i;
604
605 if (!nl_modes)
606 goto nla_put_failure;
607
608 i = 0;
609 while (ifmodes) {
610 if (ifmodes & 1)
611 NLA_PUT_FLAG(msg, i);
612 ifmodes >>= 1;
613 i++;
614 }
615
616 nla_nest_end(msg, nl_modes);
617 return 0;
618
619nla_put_failure:
620 return -ENOBUFS;
621}
622
623static int nl80211_put_iface_combinations(struct wiphy *wiphy,
624 struct sk_buff *msg)
625{
626 struct nlattr *nl_combis;
627 int i, j;
628
629 nl_combis = nla_nest_start(msg,
630 NL80211_ATTR_INTERFACE_COMBINATIONS);
631 if (!nl_combis)
632 goto nla_put_failure;
633
634 for (i = 0; i < wiphy->n_iface_combinations; i++) {
635 const struct ieee80211_iface_combination *c;
636 struct nlattr *nl_combi, *nl_limits;
637
638 c = &wiphy->iface_combinations[i];
639
640 nl_combi = nla_nest_start(msg, i + 1);
641 if (!nl_combi)
642 goto nla_put_failure;
643
644 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
645 if (!nl_limits)
646 goto nla_put_failure;
647
648 for (j = 0; j < c->n_limits; j++) {
649 struct nlattr *nl_limit;
650
651 nl_limit = nla_nest_start(msg, j + 1);
652 if (!nl_limit)
653 goto nla_put_failure;
654 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
655 c->limits[j].max);
656 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
657 c->limits[j].types))
658 goto nla_put_failure;
659 nla_nest_end(msg, nl_limit);
660 }
661
662 nla_nest_end(msg, nl_limits);
663
664 if (c->beacon_int_infra_match)
665 NLA_PUT_FLAG(msg,
666 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
667 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
668 c->num_different_channels);
669 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
670 c->max_interfaces);
671
672 nla_nest_end(msg, nl_combi);
673 }
674
675 nla_nest_end(msg, nl_combis);
676
677 return 0;
678nla_put_failure:
679 return -ENOBUFS;
680}
681
55682965
JB		 682static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
683 struct cfg80211_registered_device *dev)
684{
685 void *hdr;
ee688b00
JB		 686 struct nlattr *nl_bands, *nl_band;
687 struct nlattr *nl_freqs, *nl_freq;
688 struct nlattr *nl_rates, *nl_rate;
8fdc621d 689 struct nlattr *nl_cmds;
ee688b00
JB		 690 enum ieee80211_band band;
691 struct ieee80211_channel *chan;
692 struct ieee80211_rate *rate;
693 int i;
2e161f78
JB		 694 const struct ieee80211_txrx_stypes *mgmt_stypes =
695 dev->wiphy.mgmt_stypes;
55682965
JB		 696
697 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
698 if (!hdr)
699 return -1;
700
b5850a7a 701 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 702 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 703
f5ea9120
JB		 704 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
705 cfg80211_rdev_list_generation);
706
b9a5f8ca
JM		 707 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
708 dev->wiphy.retry_short);
709 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
710 dev->wiphy.retry_long);
711 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
712 dev->wiphy.frag_threshold);
713 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
714 dev->wiphy.rts_threshold);
81077e82
LT		 715 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
716 dev->wiphy.coverage_class);
2a519311
JB		 717 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
718 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 719 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
720 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 721 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
722 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 723 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
724 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 725 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
726 dev->wiphy.max_match_sets);
ee688b00 727
e31b8213
JB		 728 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
729 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 730 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
731 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 732 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
733 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
e31b8213 734
f4b34b55
VN		 735 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
736 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
737
25e47c18
JB		 738 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
739 sizeof(u32) * dev->wiphy.n_cipher_suites,
740 dev->wiphy.cipher_suites);
741
67fbb16b
SO		 742 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
743 dev->wiphy.max_num_pmkids);
744
c0692b8f
JB		 745 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
746 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
747
39fd5de4
BR		 748 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
749 dev->wiphy.available_antennas_tx);
750 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
751 dev->wiphy.available_antennas_rx);
752
7f531e03
BR		 753 if ((dev->wiphy.available_antennas_tx ||
754 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 755 u32 tx_ant = 0, rx_ant = 0;
756 int res;
757 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
758 if (!res) {
759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
760 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
761 }
762 }
763
7527a782
JB		 764 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
765 dev->wiphy.interface_modes))
f59ac048
LR		 766 goto nla_put_failure;
767
ee688b00
JB		 768 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
769 if (!nl_bands)
770 goto nla_put_failure;
771
772 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
773 if (!dev->wiphy.bands[band])
774 continue;
775
776 nl_band = nla_nest_start(msg, band);
777 if (!nl_band)
778 goto nla_put_failure;
779
d51626df
JB		 780 /* add HT info */
781 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
782 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
783 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
784 &dev->wiphy.bands[band]->ht_cap.mcs);
785 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
786 dev->wiphy.bands[band]->ht_cap.cap);
787 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
788 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
789 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
790 dev->wiphy.bands[band]->ht_cap.ampdu_density);
791 }
792
ee688b00
JB		 793 /* add frequencies */
794 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
795 if (!nl_freqs)
796 goto nla_put_failure;
797
798 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
799 nl_freq = nla_nest_start(msg, i);
800 if (!nl_freq)
801 goto nla_put_failure;
802
803 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 804
805 if (nl80211_msg_put_channel(msg, chan))
806 goto nla_put_failure;
e2f367f2 807
ee688b00
JB		 808 nla_nest_end(msg, nl_freq);
809 }
810
811 nla_nest_end(msg, nl_freqs);
812
813 /* add bitrates */
814 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
815 if (!nl_rates)
816 goto nla_put_failure;
817
818 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
819 nl_rate = nla_nest_start(msg, i);
820 if (!nl_rate)
821 goto nla_put_failure;
822
823 rate = &dev->wiphy.bands[band]->bitrates[i];
824 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
825 rate->bitrate);
826 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
827 NLA_PUT_FLAG(msg,
828 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
829
830 nla_nest_end(msg, nl_rate);
831 }
832
833 nla_nest_end(msg, nl_rates);
834
835 nla_nest_end(msg, nl_band);
836 }
837 nla_nest_end(msg, nl_bands);
838
8fdc621d
JB		 839 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
840 if (!nl_cmds)
841 goto nla_put_failure;
842
843 i = 0;
844#define CMD(op, n) \
845 do { \
846 if (dev->ops->op) { \
847 i++; \
848 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
849 } \
850 } while (0)
851
852 CMD(add_virtual_intf, NEW_INTERFACE);
853 CMD(change_virtual_intf, SET_INTERFACE);
854 CMD(add_key, NEW_KEY);
855 CMD(add_beacon, NEW_BEACON);
856 CMD(add_station, NEW_STATION);
857 CMD(add_mpath, NEW_MPATH);
24bdd9f4 858 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 859 CMD(change_bss, SET_BSS);
636a5d36
JM		 860 CMD(auth, AUTHENTICATE);
861 CMD(assoc, ASSOCIATE);
862 CMD(deauth, DEAUTHENTICATE);
863 CMD(disassoc, DISASSOCIATE);
04a773ad 864 CMD(join_ibss, JOIN_IBSS);
29cbe68c 865 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 866 CMD(set_pmksa, SET_PMKSA);
867 CMD(del_pmksa, DEL_PMKSA);
868 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 869 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 870 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 871 CMD(mgmt_tx, FRAME);
f7ca38df 872 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 873 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 874 i++;
875 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
876 }
f444de05 877 CMD(set_channel, SET_CHANNEL);
e8347eba 878 CMD(set_wds_peer, SET_WDS_PEER);
807f8a8c
LC		 879 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
880 CMD(sched_scan_start, START_SCHED_SCAN);
8fdc621d
JB		 881
882#undef CMD
b23aa676 883
6829c878 884 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 885 i++;
886 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
887 }
888
6829c878 889 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 890 i++;
891 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
892 }
893
8fdc621d
JB		 894 nla_nest_end(msg, nl_cmds);
895
a293911d
JB		 896 if (dev->ops->remain_on_channel)
897 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
898 dev->wiphy.max_remain_on_channel_duration);
899
d2da5878 900 if (dev->ops->mgmt_tx_cancel_wait)
f7ca38df
JB		 901 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
902
2e161f78
JB		 903 if (mgmt_stypes) {
904 u16 stypes;
905 struct nlattr *nl_ftypes, *nl_ifs;
906 enum nl80211_iftype ift;
907
908 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
909 if (!nl_ifs)
910 goto nla_put_failure;
911
912 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
913 nl_ftypes = nla_nest_start(msg, ift);
914 if (!nl_ftypes)
915 goto nla_put_failure;
916 i = 0;
917 stypes = mgmt_stypes[ift].tx;
918 while (stypes) {
919 if (stypes & 1)
920 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
921 (i << 4) | IEEE80211_FTYPE_MGMT);
922 stypes >>= 1;
923 i++;
924 }
925 nla_nest_end(msg, nl_ftypes);
926 }
927
74b70a4e
JB		 928 nla_nest_end(msg, nl_ifs);
929
2e161f78
JB		 930 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
931 if (!nl_ifs)
932 goto nla_put_failure;
933
934 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
935 nl_ftypes = nla_nest_start(msg, ift);
936 if (!nl_ftypes)
937 goto nla_put_failure;
938 i = 0;
939 stypes = mgmt_stypes[ift].rx;
940 while (stypes) {
941 if (stypes & 1)
942 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
943 (i << 4) | IEEE80211_FTYPE_MGMT);
944 stypes >>= 1;
945 i++;
946 }
947 nla_nest_end(msg, nl_ftypes);
948 }
949 nla_nest_end(msg, nl_ifs);
950 }
951
ff1b6e69
JB		 952 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
953 struct nlattr *nl_wowlan;
954
955 nl_wowlan = nla_nest_start(msg,
956 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
957 if (!nl_wowlan)
958 goto nla_put_failure;
959
960 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
961 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
962 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
963 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
964 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
965 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 966 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
967 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
968 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
969 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
970 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
971 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
972 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
973 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
974 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
975 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 976 if (dev->wiphy.wowlan.n_patterns) {
977 struct nl80211_wowlan_pattern_support pat = {
978 .max_patterns = dev->wiphy.wowlan.n_patterns,
979 .min_pattern_len =
980 dev->wiphy.wowlan.pattern_min_len,
981 .max_pattern_len =
982 dev->wiphy.wowlan.pattern_max_len,
983 };
984 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
985 sizeof(pat), &pat);
986 }
987
988 nla_nest_end(msg, nl_wowlan);
989 }
990
7527a782
JB		 991 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
992 dev->wiphy.software_iftypes))
993 goto nla_put_failure;
994
995 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
996 goto nla_put_failure;
997
55682965
JB		 998 return genlmsg_end(msg, hdr);
999
1000 nla_put_failure:
bc3ed28c
TG		 1001 genlmsg_cancel(msg, hdr);
1002 return -EMSGSIZE;
55682965
JB		 1003}
1004
1005static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1006{
1007 int idx = 0;
1008 int start = cb->args[0];
1009 struct cfg80211_registered_device *dev;
1010
a1794390 1011 mutex_lock(&cfg80211_mutex);
79c97e97 1012 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1013 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1014 continue;
b4637271 1015 if (++idx <= start)
55682965
JB		 1016 continue;
1017 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1018 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1019 dev) < 0) {
1020 idx--;
55682965 1021 break;
b4637271 1022 }
55682965 1023 }
a1794390 1024 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1025
1026 cb->args[0] = idx;
1027
1028 return skb->len;
1029}
1030
1031static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1032{
1033 struct sk_buff *msg;
4c476991 1034 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1035
fd2120ca 1036 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1037 if (!msg)
4c476991 1038 return -ENOMEM;
55682965 1039
4c476991
JB		 1040 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1041 nlmsg_free(msg);
1042 return -ENOBUFS;
1043 }
55682965 1044
134e6375 1045 return genlmsg_reply(msg, info);
55682965
JB		 1046}
1047
31888487
JM		 1048static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1049 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1050 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1051 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1052 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1053 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1054};
1055
1056static int parse_txq_params(struct nlattr *tb[],
1057 struct ieee80211_txq_params *txq_params)
1058{
1059 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1060 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1061 !tb[NL80211_TXQ_ATTR_AIFS])
1062 return -EINVAL;
1063
1064 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1065 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1066 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1067 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1068 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1069
1070 return 0;
1071}
1072
f444de05
JB		 1073static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1074{
1075 /*
1076 * You can only set the channel explicitly for AP, mesh
1077 * and WDS type interfaces; all others have their channel
1078 * managed via their respective "establish a connection"
1079 * command (connect, join, ...)
1080 *
1081 * Monitors are special as they are normally slaved to
1082 * whatever else is going on, so they behave as though
1083 * you tried setting the wiphy channel itself.
1084 */
1085 return !wdev ||
1086 wdev->iftype == NL80211_IFTYPE_AP ||
1087 wdev->iftype == NL80211_IFTYPE_WDS ||
1088 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1089 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1090 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1091}
1092
1093static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1094 struct wireless_dev *wdev,
1095 struct genl_info *info)
1096{
1097 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1098 u32 freq;
1099 int result;
1100
1101 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1102 return -EINVAL;
1103
1104 if (!nl80211_can_set_dev_channel(wdev))
1105 return -EOPNOTSUPP;
1106
1107 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1108 channel_type = nla_get_u32(info->attrs[
1109 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1110 if (channel_type != NL80211_CHAN_NO_HT &&
1111 channel_type != NL80211_CHAN_HT20 &&
1112 channel_type != NL80211_CHAN_HT40PLUS &&
1113 channel_type != NL80211_CHAN_HT40MINUS)
1114 return -EINVAL;
1115 }
1116
1117 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1118
1119 mutex_lock(&rdev->devlist_mtx);
1120 if (wdev) {
1121 wdev_lock(wdev);
1122 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1123 wdev_unlock(wdev);
1124 } else {
1125 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1126 }
1127 mutex_unlock(&rdev->devlist_mtx);
1128
1129 return result;
1130}
1131
1132static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1133{
4c476991
JB		 1134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1135 struct net_device *netdev = info->user_ptr[1];
f444de05 1136
4c476991 1137 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1138}
1139
e8347eba
BJ		 1140static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1141{
43b19952
JB		 1142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1143 struct net_device *dev = info->user_ptr[1];
1144 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1145 const u8 *bssid;
e8347eba
BJ		 1146
1147 if (!info->attrs[NL80211_ATTR_MAC])
1148 return -EINVAL;
1149
43b19952
JB		 1150 if (netif_running(dev))
1151 return -EBUSY;
e8347eba 1152
43b19952
JB		 1153 if (!rdev->ops->set_wds_peer)
1154 return -EOPNOTSUPP;
e8347eba 1155
43b19952
JB		 1156 if (wdev->iftype != NL80211_IFTYPE_WDS)
1157 return -EOPNOTSUPP;
e8347eba
BJ		 1158
1159 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1160 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1161}
1162
1163
55682965
JB		 1164static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1165{
1166 struct cfg80211_registered_device *rdev;
f444de05
JB		 1167 struct net_device *netdev = NULL;
1168 struct wireless_dev *wdev;
a1e567c8 1169 int result = 0, rem_txq_params = 0;
31888487 1170 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1171 u32 changed;
1172 u8 retry_short = 0, retry_long = 0;
1173 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1174 u8 coverage_class = 0;
55682965 1175
f444de05
JB		 1176 /*
1177 * Try to find the wiphy and netdev. Normally this
1178 * function shouldn't need the netdev, but this is
1179 * done for backward compatibility -- previously
1180 * setting the channel was done per wiphy, but now
1181 * it is per netdev. Previous userland like hostapd
1182 * also passed a netdev to set_wiphy, so that it is
1183 * possible to let that go to the right netdev!
1184 */
4bbf4d56
JB		 1185 mutex_lock(&cfg80211_mutex);
1186
f444de05
JB		 1187 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1188 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1189
1190 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1191 if (netdev && netdev->ieee80211_ptr) {
1192 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1193 mutex_lock(&rdev->mtx);
1194 } else
1195 netdev = NULL;
4bbf4d56
JB		 1196 }
1197
f444de05
JB		 1198 if (!netdev) {
1199 rdev = __cfg80211_rdev_from_info(info);
1200 if (IS_ERR(rdev)) {
1201 mutex_unlock(&cfg80211_mutex);
4c476991 1202 return PTR_ERR(rdev);
f444de05
JB		 1203 }
1204 wdev = NULL;
1205 netdev = NULL;
1206 result = 0;
1207
1208 mutex_lock(&rdev->mtx);
1209 } else if (netif_running(netdev) &&
1210 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1211 wdev = netdev->ieee80211_ptr;
1212 else
1213 wdev = NULL;
1214
1215 /*
1216 * end workaround code, by now the rdev is available
1217 * and locked, and wdev may or may not be NULL.
1218 */
4bbf4d56
JB		 1219
1220 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1221 result = cfg80211_dev_rename(
1222 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1223
1224 mutex_unlock(&cfg80211_mutex);
1225
1226 if (result)
1227 goto bad_res;
31888487
JM		 1228
1229 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1230 struct ieee80211_txq_params txq_params;
1231 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1232
1233 if (!rdev->ops->set_txq_params) {
1234 result = -EOPNOTSUPP;
1235 goto bad_res;
1236 }
1237
1238 nla_for_each_nested(nl_txq_params,
1239 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1240 rem_txq_params) {
1241 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1242 nla_data(nl_txq_params),
1243 nla_len(nl_txq_params),
1244 txq_params_policy);
1245 result = parse_txq_params(tb, &txq_params);
1246 if (result)
1247 goto bad_res;
1248
1249 result = rdev->ops->set_txq_params(&rdev->wiphy,
1250 &txq_params);
1251 if (result)
1252 goto bad_res;
1253 }
1254 }
55682965 1255
72bdcf34 1256 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1257 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1258 if (result)
1259 goto bad_res;
1260 }
1261
98d2ff8b
JO		 1262 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1263 enum nl80211_tx_power_setting type;
1264 int idx, mbm = 0;
1265
1266 if (!rdev->ops->set_tx_power) {
60ea385f 1267 result = -EOPNOTSUPP;
98d2ff8b
JO		 1268 goto bad_res;
1269 }
1270
1271 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1272 type = nla_get_u32(info->attrs[idx]);
1273
1274 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1275 (type != NL80211_TX_POWER_AUTOMATIC)) {
1276 result = -EINVAL;
1277 goto bad_res;
1278 }
1279
1280 if (type != NL80211_TX_POWER_AUTOMATIC) {
1281 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1282 mbm = nla_get_u32(info->attrs[idx]);
1283 }
1284
1285 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1286 if (result)
1287 goto bad_res;
1288 }
1289
afe0cbf8
BR		 1290 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1291 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1292 u32 tx_ant, rx_ant;
7f531e03
BR		 1293 if ((!rdev->wiphy.available_antennas_tx &&
1294 !rdev->wiphy.available_antennas_rx) ||
1295 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1296 result = -EOPNOTSUPP;
1297 goto bad_res;
1298 }
1299
1300 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1301 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1302
a7ffac95 1303 /* reject antenna configurations which don't match the
7f531e03
BR		 1304 * available antenna masks, except for the "all" mask */
1305 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1306 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1307 result = -EINVAL;
1308 goto bad_res;
1309 }
1310
7f531e03
BR		 1311 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1312 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1313
afe0cbf8
BR		 1314 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1315 if (result)
1316 goto bad_res;
1317 }
1318
b9a5f8ca
JM		 1319 changed = 0;
1320
1321 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1322 retry_short = nla_get_u8(
1323 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1324 if (retry_short == 0) {
1325 result = -EINVAL;
1326 goto bad_res;
1327 }
1328 changed |= WIPHY_PARAM_RETRY_SHORT;
1329 }
1330
1331 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1332 retry_long = nla_get_u8(
1333 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1334 if (retry_long == 0) {
1335 result = -EINVAL;
1336 goto bad_res;
1337 }
1338 changed |= WIPHY_PARAM_RETRY_LONG;
1339 }
1340
1341 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1342 frag_threshold = nla_get_u32(
1343 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1344 if (frag_threshold < 256) {
1345 result = -EINVAL;
1346 goto bad_res;
1347 }
1348 if (frag_threshold != (u32) -1) {
1349 /*
1350 * Fragments (apart from the last one) are required to
1351 * have even length. Make the fragmentation code
1352 * simpler by stripping LSB should someone try to use
1353 * odd threshold value.
1354 */
1355 frag_threshold &= ~0x1;
1356 }
1357 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1358 }
1359
1360 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1361 rts_threshold = nla_get_u32(
1362 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1363 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1364 }
1365
81077e82
LT		 1366 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1367 coverage_class = nla_get_u8(
1368 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1369 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1370 }
1371
b9a5f8ca
JM		 1372 if (changed) {
1373 u8 old_retry_short, old_retry_long;
1374 u32 old_frag_threshold, old_rts_threshold;
81077e82 1375 u8 old_coverage_class;
b9a5f8ca
JM		 1376
1377 if (!rdev->ops->set_wiphy_params) {
1378 result = -EOPNOTSUPP;
1379 goto bad_res;
1380 }
1381
1382 old_retry_short = rdev->wiphy.retry_short;
1383 old_retry_long = rdev->wiphy.retry_long;
1384 old_frag_threshold = rdev->wiphy.frag_threshold;
1385 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1386 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1387
1388 if (changed & WIPHY_PARAM_RETRY_SHORT)
1389 rdev->wiphy.retry_short = retry_short;
1390 if (changed & WIPHY_PARAM_RETRY_LONG)
1391 rdev->wiphy.retry_long = retry_long;
1392 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1393 rdev->wiphy.frag_threshold = frag_threshold;
1394 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1395 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1396 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1397 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1398
1399 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1400 if (result) {
1401 rdev->wiphy.retry_short = old_retry_short;
1402 rdev->wiphy.retry_long = old_retry_long;
1403 rdev->wiphy.frag_threshold = old_frag_threshold;
1404 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1405 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1406 }
1407 }
72bdcf34 1408
306d6112 1409 bad_res:
4bbf4d56 1410 mutex_unlock(&rdev->mtx);
f444de05
JB		 1411 if (netdev)
1412 dev_put(netdev);
55682965
JB		 1413 return result;
1414}
1415
1416
1417static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1418 struct cfg80211_registered_device *rdev,
55682965
JB		 1419 struct net_device *dev)
1420{
1421 void *hdr;
1422
1423 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1424 if (!hdr)
1425 return -1;
1426
1427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1428 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1429 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1430 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1431
1432 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1433 rdev->devlist_generation ^
1434 (cfg80211_rdev_list_generation << 2));
1435
55682965
JB		 1436 return genlmsg_end(msg, hdr);
1437
1438 nla_put_failure:
bc3ed28c
TG		 1439 genlmsg_cancel(msg, hdr);
1440 return -EMSGSIZE;
55682965
JB		 1441}
1442
1443static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1444{
1445 int wp_idx = 0;
1446 int if_idx = 0;
1447 int wp_start = cb->args[0];
1448 int if_start = cb->args[1];
f5ea9120 1449 struct cfg80211_registered_device *rdev;
55682965
JB		 1450 struct wireless_dev *wdev;
1451
a1794390 1452 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1453 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1454 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1455 continue;
bba95fef
JB		 1456 if (wp_idx < wp_start) {
1457 wp_idx++;
55682965 1458 continue;
bba95fef 1459 }
55682965
JB		 1460 if_idx = 0;
1461
f5ea9120
JB		 1462 mutex_lock(&rdev->devlist_mtx);
1463 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1464 if (if_idx < if_start) {
1465 if_idx++;
55682965 1466 continue;
bba95fef 1467 }
55682965
JB		 1468 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1469 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1470 rdev, wdev->netdev) < 0) {
1471 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1472 goto out;
1473 }
1474 if_idx++;
55682965 1475 }
f5ea9120 1476 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1477
1478 wp_idx++;
55682965 1479 }
bba95fef 1480 out:
a1794390 1481 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1482
1483 cb->args[0] = wp_idx;
1484 cb->args[1] = if_idx;
1485
1486 return skb->len;
1487}
1488
1489static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1490{
1491 struct sk_buff *msg;
4c476991
JB		 1492 struct cfg80211_registered_device *dev = info->user_ptr[0];
1493 struct net_device *netdev = info->user_ptr[1];
55682965 1494
fd2120ca 1495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1496 if (!msg)
4c476991 1497 return -ENOMEM;
55682965 1498
d726405a 1499 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1500 dev, netdev) < 0) {
1501 nlmsg_free(msg);
1502 return -ENOBUFS;
1503 }
55682965 1504
134e6375 1505 return genlmsg_reply(msg, info);
55682965
JB		 1506}
1507
66f7ac50
MW		 1508static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1509 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1510 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1511 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1512 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1513 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1514};
1515
1516static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1517{
1518 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1519 int flag;
1520
1521 *mntrflags = 0;
1522
1523 if (!nla)
1524 return -EINVAL;
1525
1526 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1527 nla, mntr_flags_policy))
1528 return -EINVAL;
1529
1530 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1531 if (flags[flag])
1532 *mntrflags |= (1<<flag);
1533
1534 return 0;
1535}
1536
9bc383de 1537static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1538 struct net_device *netdev, u8 use_4addr,
1539 enum nl80211_iftype iftype)
9bc383de 1540{
ad4bb6f8 1541 if (!use_4addr) {
f350a0a8 1542 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1543 return -EBUSY;
9bc383de 1544 return 0;
ad4bb6f8 1545 }
9bc383de
JB		 1546
1547 switch (iftype) {
1548 case NL80211_IFTYPE_AP_VLAN:
1549 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1550 return 0;
1551 break;
1552 case NL80211_IFTYPE_STATION:
1553 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1554 return 0;
1555 break;
1556 default:
1557 break;
1558 }
1559
1560 return -EOPNOTSUPP;
1561}
1562
55682965
JB		 1563static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1564{
4c476991 1565 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1566 struct vif_params params;
e36d56b6 1567 int err;
04a773ad 1568 enum nl80211_iftype otype, ntype;
4c476991 1569 struct net_device *dev = info->user_ptr[1];
92ffe055 1570 u32 _flags, *flags = NULL;
ac7f9cfa 1571 bool change = false;
55682965 1572
2ec600d6
LCC		 1573 memset(&params, 0, sizeof(params));
1574
04a773ad 1575 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1576
723b038d 1577 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1578 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1579 if (otype != ntype)
ac7f9cfa 1580 change = true;
4c476991
JB		 1581 if (ntype > NL80211_IFTYPE_MAX)
1582 return -EINVAL;
723b038d
JB		 1583 }
1584
92ffe055 1585 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1586 struct wireless_dev *wdev = dev->ieee80211_ptr;
1587
4c476991
JB		 1588 if (ntype != NL80211_IFTYPE_MESH_POINT)
1589 return -EINVAL;
29cbe68c
JB		 1590 if (netif_running(dev))
1591 return -EBUSY;
1592
1593 wdev_lock(wdev);
1594 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1595 IEEE80211_MAX_MESH_ID_LEN);
1596 wdev->mesh_id_up_len =
1597 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1598 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1599 wdev->mesh_id_up_len);
1600 wdev_unlock(wdev);
2ec600d6
LCC		 1601 }
1602
8b787643
FF		 1603 if (info->attrs[NL80211_ATTR_4ADDR]) {
1604 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1605 change = true;
ad4bb6f8 1606 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1607 if (err)
4c476991 1608 return err;
8b787643
FF		 1609 } else {
1610 params.use_4addr = -1;
1611 }
1612
92ffe055 1613 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1614 if (ntype != NL80211_IFTYPE_MONITOR)
1615 return -EINVAL;
92ffe055
JB		 1616 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1617 &_flags);
ac7f9cfa 1618 if (err)
4c476991 1619 return err;
ac7f9cfa
JB		 1620
1621 flags = &_flags;
1622 change = true;
92ffe055 1623 }
3b85875a 1624
ac7f9cfa 1625 if (change)
3d54d255 1626 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1627 else
1628 err = 0;
60719ffd 1629
9bc383de
JB		 1630 if (!err && params.use_4addr != -1)
1631 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1632
55682965
JB		 1633 return err;
1634}
1635
1636static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1637{
4c476991 1638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1639 struct vif_params params;
f9e10ce4 1640 struct net_device *dev;
55682965
JB		 1641 int err;
1642 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1643 u32 flags;
55682965 1644
2ec600d6
LCC		 1645 memset(&params, 0, sizeof(params));
1646
55682965
JB		 1647 if (!info->attrs[NL80211_ATTR_IFNAME])
1648 return -EINVAL;
1649
1650 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1651 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1652 if (type > NL80211_IFTYPE_MAX)
1653 return -EINVAL;
1654 }
1655
79c97e97 1656 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1657 !(rdev->wiphy.interface_modes & (1 << type)))
1658 return -EOPNOTSUPP;
55682965 1659
9bc383de 1660 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1661 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1662 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1663 if (err)
4c476991 1664 return err;
9bc383de 1665 }
8b787643 1666
66f7ac50
MW		 1667 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1668 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1669 &flags);
f9e10ce4 1670 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1671 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1672 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1673 if (IS_ERR(dev))
1674 return PTR_ERR(dev);
2ec600d6 1675
29cbe68c
JB		 1676 if (type == NL80211_IFTYPE_MESH_POINT &&
1677 info->attrs[NL80211_ATTR_MESH_ID]) {
1678 struct wireless_dev *wdev = dev->ieee80211_ptr;
1679
1680 wdev_lock(wdev);
1681 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1682 IEEE80211_MAX_MESH_ID_LEN);
1683 wdev->mesh_id_up_len =
1684 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1685 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1686 wdev->mesh_id_up_len);
1687 wdev_unlock(wdev);
1688 }
1689
f9e10ce4 1690 return 0;
55682965
JB		 1691}
1692
1693static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1694{
4c476991
JB		 1695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1696 struct net_device *dev = info->user_ptr[1];
55682965 1697
4c476991
JB		 1698 if (!rdev->ops->del_virtual_intf)
1699 return -EOPNOTSUPP;
55682965 1700
4c476991 1701 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1702}
1703
41ade00f
JB		 1704struct get_key_cookie {
1705 struct sk_buff *msg;
1706 int error;
b9454e83 1707 int idx;
41ade00f
JB		 1708};
1709
1710static void get_key_callback(void *c, struct key_params *params)
1711{
b9454e83 1712 struct nlattr *key;
41ade00f
JB		 1713 struct get_key_cookie *cookie = c;
1714
1715 if (params->key)
1716 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1717 params->key_len, params->key);
1718
1719 if (params->seq)
1720 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1721 params->seq_len, params->seq);
1722
1723 if (params->cipher)
1724 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1725 params->cipher);
1726
b9454e83
JB		 1727 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1728 if (!key)
1729 goto nla_put_failure;
1730
1731 if (params->key)
1732 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1733 params->key_len, params->key);
1734
1735 if (params->seq)
1736 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1737 params->seq_len, params->seq);
1738
1739 if (params->cipher)
1740 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1741 params->cipher);
1742
1743 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1744
1745 nla_nest_end(cookie->msg, key);
1746
41ade00f
JB		 1747 return;
1748 nla_put_failure:
1749 cookie->error = 1;
1750}
1751
1752static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1753{
4c476991 1754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1755 int err;
4c476991 1756 struct net_device *dev = info->user_ptr[1];
41ade00f 1757 u8 key_idx = 0;
e31b8213
JB		 1758 const u8 *mac_addr = NULL;
1759 bool pairwise;
41ade00f
JB		 1760 struct get_key_cookie cookie = {
1761 .error = 0,
1762 };
1763 void *hdr;
1764 struct sk_buff *msg;
1765
1766 if (info->attrs[NL80211_ATTR_KEY_IDX])
1767 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1768
3cfcf6ac 1769 if (key_idx > 5)
41ade00f
JB		 1770 return -EINVAL;
1771
1772 if (info->attrs[NL80211_ATTR_MAC])
1773 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1774
e31b8213
JB		 1775 pairwise = !!mac_addr;
1776 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1777 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1778 if (kt >= NUM_NL80211_KEYTYPES)
1779 return -EINVAL;
1780 if (kt != NL80211_KEYTYPE_GROUP &&
1781 kt != NL80211_KEYTYPE_PAIRWISE)
1782 return -EINVAL;
1783 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1784 }
1785
4c476991
JB		 1786 if (!rdev->ops->get_key)
1787 return -EOPNOTSUPP;
41ade00f 1788
fd2120ca 1789 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1790 if (!msg)
1791 return -ENOMEM;
41ade00f
JB		 1792
1793 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1794 NL80211_CMD_NEW_KEY);
4c476991
JB		 1795 if (IS_ERR(hdr))
1796 return PTR_ERR(hdr);
41ade00f
JB		 1797
1798 cookie.msg = msg;
b9454e83 1799 cookie.idx = key_idx;
41ade00f
JB		 1800
1801 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1802 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1803 if (mac_addr)
1804 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1805
e31b8213
JB		 1806 if (pairwise && mac_addr &&
1807 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1808 return -ENOENT;
1809
1810 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1811 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1812
1813 if (err)
6c95e2a2 1814 goto free_msg;
41ade00f
JB		 1815
1816 if (cookie.error)
1817 goto nla_put_failure;
1818
1819 genlmsg_end(msg, hdr);
4c476991 1820 return genlmsg_reply(msg, info);
41ade00f
JB		 1821
1822 nla_put_failure:
1823 err = -ENOBUFS;
6c95e2a2 1824 free_msg:
41ade00f 1825 nlmsg_free(msg);
41ade00f
JB		 1826 return err;
1827}
1828
1829static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1830{
4c476991 1831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1832 struct key_parse key;
41ade00f 1833 int err;
4c476991 1834 struct net_device *dev = info->user_ptr[1];
41ade00f 1835
b9454e83
JB		 1836 err = nl80211_parse_key(info, &key);
1837 if (err)
1838 return err;
41ade00f 1839
b9454e83 1840 if (key.idx < 0)
41ade00f
JB		 1841 return -EINVAL;
1842
b9454e83
JB		 1843 /* only support setting default key */
1844 if (!key.def && !key.defmgmt)
41ade00f
JB		 1845 return -EINVAL;
1846
dbd2fd65 1847 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1848
dbd2fd65
JB		 1849 if (key.def) {
1850 if (!rdev->ops->set_default_key) {
1851 err = -EOPNOTSUPP;
1852 goto out;
1853 }
41ade00f 1854
dbd2fd65
JB		 1855 err = nl80211_key_allowed(dev->ieee80211_ptr);
1856 if (err)
1857 goto out;
1858
dbd2fd65
JB		 1859 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1860 key.def_uni, key.def_multi);
1861
1862 if (err)
1863 goto out;
fffd0934 1864
3d23e349 1865#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1866 dev->ieee80211_ptr->wext.default_key = key.idx;
1867#endif
1868 } else {
1869 if (key.def_uni || !key.def_multi) {
1870 err = -EINVAL;
1871 goto out;
1872 }
1873
1874 if (!rdev->ops->set_default_mgmt_key) {
1875 err = -EOPNOTSUPP;
1876 goto out;
1877 }
1878
1879 err = nl80211_key_allowed(dev->ieee80211_ptr);
1880 if (err)
1881 goto out;
1882
1883 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1884 dev, key.idx);
1885 if (err)
1886 goto out;
1887
1888#ifdef CONFIG_CFG80211_WEXT
1889 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1890#endif
dbd2fd65
JB		 1891 }
1892
1893 out:
fffd0934 1894 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1895
41ade00f
JB		 1896 return err;
1897}
1898
1899static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1900{
4c476991 1901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1902 int err;
4c476991 1903 struct net_device *dev = info->user_ptr[1];
b9454e83 1904 struct key_parse key;
e31b8213 1905 const u8 *mac_addr = NULL;
41ade00f 1906
b9454e83
JB		 1907 err = nl80211_parse_key(info, &key);
1908 if (err)
1909 return err;
41ade00f 1910
b9454e83 1911 if (!key.p.key)
41ade00f
JB		 1912 return -EINVAL;
1913
41ade00f
JB		 1914 if (info->attrs[NL80211_ATTR_MAC])
1915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1916
e31b8213
JB		 1917 if (key.type == -1) {
1918 if (mac_addr)
1919 key.type = NL80211_KEYTYPE_PAIRWISE;
1920 else
1921 key.type = NL80211_KEYTYPE_GROUP;
1922 }
1923
1924 /* for now */
1925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1926 key.type != NL80211_KEYTYPE_GROUP)
1927 return -EINVAL;
1928
4c476991
JB		 1929 if (!rdev->ops->add_key)
1930 return -EOPNOTSUPP;
25e47c18 1931
e31b8213
JB		 1932 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1933 key.type == NL80211_KEYTYPE_PAIRWISE,
1934 mac_addr))
4c476991 1935 return -EINVAL;
41ade00f 1936
fffd0934
JB		 1937 wdev_lock(dev->ieee80211_ptr);
1938 err = nl80211_key_allowed(dev->ieee80211_ptr);
1939 if (!err)
1940 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1941 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1942 mac_addr, &key.p);
1943 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1944
41ade00f
JB		 1945 return err;
1946}
1947
1948static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1949{
4c476991 1950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1951 int err;
4c476991 1952 struct net_device *dev = info->user_ptr[1];
41ade00f 1953 u8 *mac_addr = NULL;
b9454e83 1954 struct key_parse key;
41ade00f 1955
b9454e83
JB		 1956 err = nl80211_parse_key(info, &key);
1957 if (err)
1958 return err;
41ade00f
JB		 1959
1960 if (info->attrs[NL80211_ATTR_MAC])
1961 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1962
e31b8213
JB		 1963 if (key.type == -1) {
1964 if (mac_addr)
1965 key.type = NL80211_KEYTYPE_PAIRWISE;
1966 else
1967 key.type = NL80211_KEYTYPE_GROUP;
1968 }
1969
1970 /* for now */
1971 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1972 key.type != NL80211_KEYTYPE_GROUP)
1973 return -EINVAL;
1974
4c476991
JB		 1975 if (!rdev->ops->del_key)
1976 return -EOPNOTSUPP;
41ade00f 1977
fffd0934
JB		 1978 wdev_lock(dev->ieee80211_ptr);
1979 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1980
1981 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1982 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1983 err = -ENOENT;
1984
fffd0934 1985 if (!err)
e31b8213
JB		 1986 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1987 key.type == NL80211_KEYTYPE_PAIRWISE,
1988 mac_addr);
41ade00f 1989
3d23e349 1990#ifdef CONFIG_CFG80211_WEXT
08645126 1991 if (!err) {
b9454e83 1992 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1993 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1994 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1995 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1996 }
1997#endif
fffd0934 1998 wdev_unlock(dev->ieee80211_ptr);
08645126 1999
41ade00f
JB		 2000 return err;
2001}
2002
ed1b6cc7
JB		 2003static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2004{
2005 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2006 struct beacon_parameters *info);
4c476991
JB		 2007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2008 struct net_device *dev = info->user_ptr[1];
56d1893d 2009 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2010 struct beacon_parameters params;
56d1893d 2011 int haveinfo = 0, err;
ed1b6cc7 2012
9946ecfb
JM		 2013 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2014 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2015 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2016 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2017 return -EINVAL;
2018
074ac8df 2019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2020 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2021 return -EOPNOTSUPP;
eec60b03 2022
56d1893d
JB		 2023 memset(&params, 0, sizeof(params));
2024
ed1b6cc7
JB		 2025 switch (info->genlhdr->cmd) {
2026 case NL80211_CMD_NEW_BEACON:
2027 /* these are required for NEW_BEACON */
2028 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2029 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2030 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2031 return -EINVAL;
ed1b6cc7 2032
56d1893d
JB		 2033 params.interval =
2034 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2035 params.dtim_period =
2036 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2037
2038 err = cfg80211_validate_beacon_int(rdev, params.interval);
2039 if (err)
2040 return err;
2041
32e9de84
JM		 2042 /*
2043 * In theory, some of these attributes could be required for
2044 * NEW_BEACON, but since they were not used when the command was
2045 * originally added, keep them optional for old user space
2046 * programs to work with drivers that do not need the additional
2047 * information.
2048 */
2049 if (info->attrs[NL80211_ATTR_SSID]) {
2050 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2051 params.ssid_len =
2052 nla_len(info->attrs[NL80211_ATTR_SSID]);
2053 if (params.ssid_len == 0 ||
2054 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2055 return -EINVAL;
2056 }
2057
2058 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2059 params.hidden_ssid = nla_get_u32(
2060 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2061 if (params.hidden_ssid !=
2062 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2063 params.hidden_ssid !=
2064 NL80211_HIDDEN_SSID_ZERO_LEN &&
2065 params.hidden_ssid !=
2066 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2067 return -EINVAL;
2068 }
2069
5fb628e9
JM		 2070 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2071
2072 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2073 params.auth_type = nla_get_u32(
2074 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2075 if (!nl80211_valid_auth_type(params.auth_type))
2076 return -EINVAL;
2077 } else
2078 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2079
2080 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2081 NL80211_MAX_NR_CIPHER_SUITES);
2082 if (err)
2083 return err;
2084
79c97e97 2085 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2086 break;
2087 case NL80211_CMD_SET_BEACON:
79c97e97 2088 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2089 break;
2090 default:
2091 WARN_ON(1);
4c476991 2092 return -EOPNOTSUPP;
ed1b6cc7
JB		 2093 }
2094
4c476991
JB		 2095 if (!call)
2096 return -EOPNOTSUPP;
ed1b6cc7 2097
ed1b6cc7
JB		 2098 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2099 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2100 params.head_len =
2101 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2102 haveinfo = 1;
2103 }
2104
2105 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2106 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2107 params.tail_len =
2108 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2109 haveinfo = 1;
2110 }
2111
4c476991
JB		 2112 if (!haveinfo)
2113 return -EINVAL;
3b85875a 2114
9946ecfb
JM		 2115 if (info->attrs[NL80211_ATTR_IE]) {
2116 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2117 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2118 }
2119
2120 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2121 params.proberesp_ies =
2122 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2123 params.proberesp_ies_len =
2124 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2125 }
2126
2127 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2128 params.assocresp_ies =
2129 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2130 params.assocresp_ies_len =
2131 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2132 }
2133
56d1893d
JB		 2134 err = call(&rdev->wiphy, dev, &params);
2135 if (!err && params.interval)
2136 wdev->beacon_interval = params.interval;
2137 return err;
ed1b6cc7
JB		 2138}
2139
2140static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2141{
4c476991
JB		 2142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2143 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2144 struct wireless_dev *wdev = dev->ieee80211_ptr;
2145 int err;
ed1b6cc7 2146
4c476991
JB		 2147 if (!rdev->ops->del_beacon)
2148 return -EOPNOTSUPP;
ed1b6cc7 2149
074ac8df 2150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2152 return -EOPNOTSUPP;
3b85875a 2153
56d1893d
JB		 2154 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2155 if (!err)
2156 wdev->beacon_interval = 0;
2157 return err;
ed1b6cc7
JB		 2158}
2159
5727ef1b
JB		 2160static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2161 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2162 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2163 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2164 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2165 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2166};
2167
eccb8e8f
JB		 2168static int parse_station_flags(struct genl_info *info,
2169 struct station_parameters *params)
5727ef1b
JB		 2170{
2171 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2172 struct nlattr *nla;
5727ef1b
JB		 2173 int flag;
2174
eccb8e8f
JB		 2175 /*
2176 * Try parsing the new attribute first so userspace
2177 * can specify both for older kernels.
2178 */
2179 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2180 if (nla) {
2181 struct nl80211_sta_flag_update *sta_flags;
2182
2183 sta_flags = nla_data(nla);
2184 params->sta_flags_mask = sta_flags->mask;
2185 params->sta_flags_set = sta_flags->set;
2186 if ((params->sta_flags_mask |
2187 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2188 return -EINVAL;
2189 return 0;
2190 }
2191
2192 /* if present, parse the old attribute */
5727ef1b 2193
eccb8e8f 2194 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2195 if (!nla)
2196 return 0;
2197
2198 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2199 nla, sta_flags_policy))
2200 return -EINVAL;
2201
eccb8e8f
JB		 2202 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2203 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2204
2205 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2206 if (flags[flag])
eccb8e8f 2207 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2208
2209 return 0;
2210}
2211
c8dcfd8a
FF		 2212static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2213 int attr)
2214{
2215 struct nlattr *rate;
2216 u16 bitrate;
2217
2218 rate = nla_nest_start(msg, attr);
2219 if (!rate)
2220 goto nla_put_failure;
2221
2222 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2223 bitrate = cfg80211_calculate_bitrate(info);
2224 if (bitrate > 0)
2225 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2226
2227 if (info->flags & RATE_INFO_FLAGS_MCS)
2228 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2229 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2230 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2231 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2232 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2233
2234 nla_nest_end(msg, rate);
2235 return true;
2236
2237nla_put_failure:
2238 return false;
2239}
2240
fd5b74dc
JB		 2241static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2242 int flags, struct net_device *dev,
98b62183 2243 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2244{
2245 void *hdr;
f4263c98 2246 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2247
2248 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2249 if (!hdr)
2250 return -1;
2251
2252 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2253 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2254
f5ea9120
JB		 2255 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2256
2ec600d6
LCC		 2257 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2258 if (!sinfoattr)
fd5b74dc 2259 goto nla_put_failure;
ebe27c91
MSS		 2260 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2261 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2262 sinfo->connected_time);
2ec600d6
LCC		 2263 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2264 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2265 sinfo->inactive_time);
2266 if (sinfo->filled & STATION_INFO_RX_BYTES)
2267 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2268 sinfo->rx_bytes);
2269 if (sinfo->filled & STATION_INFO_TX_BYTES)
2270 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2271 sinfo->tx_bytes);
2272 if (sinfo->filled & STATION_INFO_LLID)
2273 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2274 sinfo->llid);
2275 if (sinfo->filled & STATION_INFO_PLID)
2276 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2277 sinfo->plid);
2278 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2279 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2280 sinfo->plink_state);
420e7fab
HR		 2281 if (sinfo->filled & STATION_INFO_SIGNAL)
2282 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2283 sinfo->signal);
541a45a1
BR		 2284 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2285 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2286 sinfo->signal_avg);
420e7fab 2287 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2288 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2289 NL80211_STA_INFO_TX_BITRATE))
2290 goto nla_put_failure;
2291 }
2292 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2293 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2294 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2295 goto nla_put_failure;
420e7fab 2296 }
98c8a60a
JM		 2297 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2298 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2299 sinfo->rx_packets);
2300 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2301 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2302 sinfo->tx_packets);
b206b4ef
BR		 2303 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2304 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2305 sinfo->tx_retries);
2306 if (sinfo->filled & STATION_INFO_TX_FAILED)
2307 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2308 sinfo->tx_failed);
f4263c98
PS		 2309 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2310 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2311 if (!bss_param)
2312 goto nla_put_failure;
2313
2314 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2315 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2316 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2317 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2318 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2319 NLA_PUT_FLAG(msg,
2320 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2321 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2322 sinfo->bss_param.dtim_period);
2323 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2324 sinfo->bss_param.beacon_interval);
2325
2326 nla_nest_end(msg, bss_param);
2327 }
2ec600d6 2328 nla_nest_end(msg, sinfoattr);
fd5b74dc 2329
040bdf71 2330 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2331 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2332 sinfo->assoc_req_ies);
2333
fd5b74dc
JB		 2334 return genlmsg_end(msg, hdr);
2335
2336 nla_put_failure:
bc3ed28c
TG		 2337 genlmsg_cancel(msg, hdr);
2338 return -EMSGSIZE;
fd5b74dc
JB		 2339}
2340
2ec600d6 2341static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2342 struct netlink_callback *cb)
2ec600d6 2343{
2ec600d6
LCC		 2344 struct station_info sinfo;
2345 struct cfg80211_registered_device *dev;
bba95fef 2346 struct net_device *netdev;
2ec600d6 2347 u8 mac_addr[ETH_ALEN];
bba95fef 2348 int sta_idx = cb->args[1];
2ec600d6 2349 int err;
2ec600d6 2350
67748893
JB		 2351 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2352 if (err)
2353 return err;
bba95fef
JB		 2354
2355 if (!dev->ops->dump_station) {
eec60b03 2356 err = -EOPNOTSUPP;
bba95fef
JB		 2357 goto out_err;
2358 }
2359
bba95fef 2360 while (1) {
f612cedf 2361 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2362 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2363 mac_addr, &sinfo);
2364 if (err == -ENOENT)
2365 break;
2366 if (err)
3b85875a 2367 goto out_err;
bba95fef
JB		 2368
2369 if (nl80211_send_station(skb,
2370 NETLINK_CB(cb->skb).pid,
2371 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2372 netdev, mac_addr,
2373 &sinfo) < 0)
2374 goto out;
2375
2376 sta_idx++;
2377 }
2378
2379
2380 out:
2381 cb->args[1] = sta_idx;
2382 err = skb->len;
bba95fef 2383 out_err:
67748893 2384 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2385
2386 return err;
2ec600d6 2387}
fd5b74dc 2388
5727ef1b
JB		 2389static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2390{
4c476991
JB		 2391 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2392 struct net_device *dev = info->user_ptr[1];
2ec600d6 2393 struct station_info sinfo;
fd5b74dc
JB		 2394 struct sk_buff *msg;
2395 u8 *mac_addr = NULL;
4c476991 2396 int err;
fd5b74dc 2397
2ec600d6 2398 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2399
2400 if (!info->attrs[NL80211_ATTR_MAC])
2401 return -EINVAL;
2402
2403 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2404
4c476991
JB		 2405 if (!rdev->ops->get_station)
2406 return -EOPNOTSUPP;
3b85875a 2407
4c476991 2408 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2409 if (err)
4c476991 2410 return err;
2ec600d6 2411
fd2120ca 2412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2413 if (!msg)
4c476991 2414 return -ENOMEM;
fd5b74dc
JB		 2415
2416 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2417 dev, mac_addr, &sinfo) < 0) {
2418 nlmsg_free(msg);
2419 return -ENOBUFS;
2420 }
3b85875a 2421
4c476991 2422 return genlmsg_reply(msg, info);
5727ef1b
JB		 2423}
2424
2425/*
c258d2de 2426 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2427 */
463d0183 2428static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2429 struct cfg80211_registered_device *rdev,
2430 struct net_device **vlan)
2431{
463d0183 2432 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2433 *vlan = NULL;
2434
2435 if (vlanattr) {
463d0183
JB		 2436 *vlan = dev_get_by_index(genl_info_net(info),
2437 nla_get_u32(vlanattr));
5727ef1b
JB		 2438 if (!*vlan)
2439 return -ENODEV;
2440 if (!(*vlan)->ieee80211_ptr)
2441 return -EINVAL;
2442 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2443 return -EINVAL;
c258d2de
FF		 2444 if (!netif_running(*vlan))
2445 return -ENETDOWN;
5727ef1b
JB		 2446 }
2447 return 0;
2448}
2449
2450static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2451{
4c476991 2452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2453 int err;
4c476991 2454 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2455 struct station_parameters params;
2456 u8 *mac_addr = NULL;
2457
2458 memset(&params, 0, sizeof(params));
2459
2460 params.listen_interval = -1;
57cf8043 2461 params.plink_state = -1;
5727ef1b
JB		 2462
2463 if (info->attrs[NL80211_ATTR_STA_AID])
2464 return -EINVAL;
2465
2466 if (!info->attrs[NL80211_ATTR_MAC])
2467 return -EINVAL;
2468
2469 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2470
2471 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2472 params.supported_rates =
2473 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2474 params.supported_rates_len =
2475 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2476 }
2477
2478 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2479 params.listen_interval =
2480 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2481
36aedc90
JM		 2482 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2483 params.ht_capa =
2484 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2485
eccb8e8f 2486 if (parse_station_flags(info, &params))
5727ef1b
JB		 2487 return -EINVAL;
2488
2ec600d6
LCC		 2489 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2490 params.plink_action =
2491 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2492
9c3990aa
JC		 2493 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2494 params.plink_state =
2495 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2496
463d0183 2497 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2498 if (err)
034d655e 2499 goto out;
a97f4424
JB		 2500
2501 /* validate settings */
2502 err = 0;
2503
2504 switch (dev->ieee80211_ptr->iftype) {
2505 case NL80211_IFTYPE_AP:
2506 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2507 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2508 /* disallow mesh-specific things */
2509 if (params.plink_action)
2510 err = -EINVAL;
2511 break;
074ac8df 2512 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2513 case NL80211_IFTYPE_STATION:
2514 /* disallow everything but AUTHORIZED flag */
2515 if (params.plink_action)
2516 err = -EINVAL;
2517 if (params.vlan)
2518 err = -EINVAL;
2519 if (params.supported_rates)
2520 err = -EINVAL;
2521 if (params.ht_capa)
2522 err = -EINVAL;
2523 if (params.listen_interval >= 0)
2524 err = -EINVAL;
2525 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2526 err = -EINVAL;
2527 break;
2528 case NL80211_IFTYPE_MESH_POINT:
2529 /* disallow things mesh doesn't support */
2530 if (params.vlan)
2531 err = -EINVAL;
2532 if (params.ht_capa)
2533 err = -EINVAL;
2534 if (params.listen_interval >= 0)
2535 err = -EINVAL;
b39c48fa
JC		 2536 if (params.sta_flags_mask &
2537 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2538 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2539 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2540 err = -EINVAL;
2541 break;
2542 default:
2543 err = -EINVAL;
034d655e
JB		 2544 }
2545
5727ef1b
JB		 2546 if (err)
2547 goto out;
2548
79c97e97 2549 if (!rdev->ops->change_station) {
5727ef1b
JB		 2550 err = -EOPNOTSUPP;
2551 goto out;
2552 }
2553
79c97e97 2554 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2555
2556 out:
2557 if (params.vlan)
2558 dev_put(params.vlan);
3b85875a 2559
5727ef1b
JB		 2560 return err;
2561}
2562
c75786c9
EP		 2563static struct nla_policy
2564nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2565 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2566 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2567};
2568
5727ef1b
JB		 2569static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2570{
4c476991 2571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2572 int err;
4c476991 2573 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2574 struct station_parameters params;
2575 u8 *mac_addr = NULL;
2576
2577 memset(&params, 0, sizeof(params));
2578
2579 if (!info->attrs[NL80211_ATTR_MAC])
2580 return -EINVAL;
2581
5727ef1b
JB		 2582 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2583 return -EINVAL;
2584
2585 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2586 return -EINVAL;
2587
0e956c13
TLSC		 2588 if (!info->attrs[NL80211_ATTR_STA_AID])
2589 return -EINVAL;
2590
5727ef1b
JB		 2591 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2592 params.supported_rates =
2593 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2594 params.supported_rates_len =
2595 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2596 params.listen_interval =
2597 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2598
0e956c13
TLSC		 2599 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2600 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2601 return -EINVAL;
51b50fbe 2602
36aedc90
JM		 2603 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2604 params.ht_capa =
2605 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2606
96b78dff
JC		 2607 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2608 params.plink_action =
2609 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2610
eccb8e8f 2611 if (parse_station_flags(info, &params))
5727ef1b
JB		 2612 return -EINVAL;
2613
c75786c9 2614 /* parse WME attributes if sta is WME capable */
cedb5412
EP		 2615 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2616 (params.sta_flags_set & NL80211_STA_FLAG_WME) &&
c75786c9
EP		 2617 info->attrs[NL80211_ATTR_STA_WME]) {
2618 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2619 struct nlattr *nla;
2620
2621 nla = info->attrs[NL80211_ATTR_STA_WME];
2622 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2623 nl80211_sta_wme_policy);
2624 if (err)
2625 return err;
2626
2627 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2628 params.uapsd_queues =
2629 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2630
2631 if (tb[NL80211_STA_WME_MAX_SP])
2632 params.max_sp =
2633 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
2634 }
2635
0e956c13 2636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2637 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2638 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2639 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2640 return -EINVAL;
0e956c13 2641
463d0183 2642 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2643 if (err)
e80cf853 2644 goto out;
a97f4424
JB		 2645
2646 /* validate settings */
2647 err = 0;
2648
79c97e97 2649 if (!rdev->ops->add_station) {
5727ef1b
JB		 2650 err = -EOPNOTSUPP;
2651 goto out;
2652 }
2653
79c97e97 2654 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2655
2656 out:
2657 if (params.vlan)
2658 dev_put(params.vlan);
5727ef1b
JB		 2659 return err;
2660}
2661
2662static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2663{
4c476991
JB		 2664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2665 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2666 u8 *mac_addr = NULL;
2667
2668 if (info->attrs[NL80211_ATTR_MAC])
2669 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2670
e80cf853 2671 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2672 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2673 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2674 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2675 return -EINVAL;
5727ef1b 2676
4c476991
JB		 2677 if (!rdev->ops->del_station)
2678 return -EOPNOTSUPP;
3b85875a 2679
4c476991 2680 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2681}
2682
2ec600d6
LCC		 2683static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2684 int flags, struct net_device *dev,
2685 u8 *dst, u8 *next_hop,
2686 struct mpath_info *pinfo)
2687{
2688 void *hdr;
2689 struct nlattr *pinfoattr;
2690
2691 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2692 if (!hdr)
2693 return -1;
2694
2695 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2696 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2697 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2698
f5ea9120
JB		 2699 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2700
2ec600d6
LCC		 2701 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2702 if (!pinfoattr)
2703 goto nla_put_failure;
2704 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2705 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2706 pinfo->frame_qlen);
d19b3bf6
RP		 2707 if (pinfo->filled & MPATH_INFO_SN)
2708 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2709 pinfo->sn);
2ec600d6
LCC		 2710 if (pinfo->filled & MPATH_INFO_METRIC)
2711 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2712 pinfo->metric);
2713 if (pinfo->filled & MPATH_INFO_EXPTIME)
2714 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2715 pinfo->exptime);
2716 if (pinfo->filled & MPATH_INFO_FLAGS)
2717 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2718 pinfo->flags);
2719 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2720 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2721 pinfo->discovery_timeout);
2722 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2723 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2724 pinfo->discovery_retries);
2725
2726 nla_nest_end(msg, pinfoattr);
2727
2728 return genlmsg_end(msg, hdr);
2729
2730 nla_put_failure:
bc3ed28c
TG		 2731 genlmsg_cancel(msg, hdr);
2732 return -EMSGSIZE;
2ec600d6
LCC		 2733}
2734
2735static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2736 struct netlink_callback *cb)
2ec600d6 2737{
2ec600d6
LCC		 2738 struct mpath_info pinfo;
2739 struct cfg80211_registered_device *dev;
bba95fef 2740 struct net_device *netdev;
2ec600d6
LCC		 2741 u8 dst[ETH_ALEN];
2742 u8 next_hop[ETH_ALEN];
bba95fef 2743 int path_idx = cb->args[1];
2ec600d6 2744 int err;
2ec600d6 2745
67748893
JB		 2746 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2747 if (err)
2748 return err;
bba95fef
JB		 2749
2750 if (!dev->ops->dump_mpath) {
eec60b03 2751 err = -EOPNOTSUPP;
bba95fef
JB		 2752 goto out_err;
2753 }
2754
eec60b03
JM		 2755 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2756 err = -EOPNOTSUPP;
0448b5fc 2757 goto out_err;
eec60b03
JM		 2758 }
2759
bba95fef
JB		 2760 while (1) {
2761 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2762 dst, next_hop, &pinfo);
2763 if (err == -ENOENT)
2ec600d6 2764 break;
bba95fef 2765 if (err)
3b85875a 2766 goto out_err;
2ec600d6 2767
bba95fef
JB		 2768 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2769 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2770 netdev, dst, next_hop,
2771 &pinfo) < 0)
2772 goto out;
2ec600d6 2773
bba95fef 2774 path_idx++;
2ec600d6 2775 }
2ec600d6 2776
2ec600d6 2777
bba95fef
JB		 2778 out:
2779 cb->args[1] = path_idx;
2780 err = skb->len;
bba95fef 2781 out_err:
67748893 2782 nl80211_finish_netdev_dump(dev);
bba95fef 2783 return err;
2ec600d6
LCC		 2784}
2785
2786static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2787{
4c476991 2788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2789 int err;
4c476991 2790 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2791 struct mpath_info pinfo;
2792 struct sk_buff *msg;
2793 u8 *dst = NULL;
2794 u8 next_hop[ETH_ALEN];
2795
2796 memset(&pinfo, 0, sizeof(pinfo));
2797
2798 if (!info->attrs[NL80211_ATTR_MAC])
2799 return -EINVAL;
2800
2801 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2802
4c476991
JB		 2803 if (!rdev->ops->get_mpath)
2804 return -EOPNOTSUPP;
2ec600d6 2805
4c476991
JB		 2806 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2807 return -EOPNOTSUPP;
eec60b03 2808
79c97e97 2809 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2810 if (err)
4c476991 2811 return err;
2ec600d6 2812
fd2120ca 2813 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2814 if (!msg)
4c476991 2815 return -ENOMEM;
2ec600d6
LCC		 2816
2817 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2818 dev, dst, next_hop, &pinfo) < 0) {
2819 nlmsg_free(msg);
2820 return -ENOBUFS;
2821 }
3b85875a 2822
4c476991 2823 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2824}
2825
2826static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2827{
4c476991
JB		 2828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2829 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2830 u8 *dst = NULL;
2831 u8 *next_hop = NULL;
2832
2833 if (!info->attrs[NL80211_ATTR_MAC])
2834 return -EINVAL;
2835
2836 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2837 return -EINVAL;
2838
2839 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2840 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2841
4c476991
JB		 2842 if (!rdev->ops->change_mpath)
2843 return -EOPNOTSUPP;
35a8efe1 2844
4c476991
JB		 2845 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2846 return -EOPNOTSUPP;
2ec600d6 2847
4c476991 2848 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2849}
4c476991 2850
2ec600d6
LCC		 2851static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2852{
4c476991
JB		 2853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2854 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2855 u8 *dst = NULL;
2856 u8 *next_hop = NULL;
2857
2858 if (!info->attrs[NL80211_ATTR_MAC])
2859 return -EINVAL;
2860
2861 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2862 return -EINVAL;
2863
2864 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2865 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2866
4c476991
JB		 2867 if (!rdev->ops->add_mpath)
2868 return -EOPNOTSUPP;
35a8efe1 2869
4c476991
JB		 2870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2871 return -EOPNOTSUPP;
2ec600d6 2872
4c476991 2873 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2874}
2875
2876static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2877{
4c476991
JB		 2878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2879 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2880 u8 *dst = NULL;
2881
2882 if (info->attrs[NL80211_ATTR_MAC])
2883 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2884
4c476991
JB		 2885 if (!rdev->ops->del_mpath)
2886 return -EOPNOTSUPP;
3b85875a 2887
4c476991 2888 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2889}
2890
9f1ba906
JM		 2891static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2892{
4c476991
JB		 2893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2894 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2895 struct bss_parameters params;
2896
2897 memset(&params, 0, sizeof(params));
2898 /* default to not changing parameters */
2899 params.use_cts_prot = -1;
2900 params.use_short_preamble = -1;
2901 params.use_short_slot_time = -1;
fd8aaaf3 2902 params.ap_isolate = -1;
50b12f59 2903 params.ht_opmode = -1;
9f1ba906
JM		 2904
2905 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2906 params.use_cts_prot =
2907 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2908 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2909 params.use_short_preamble =
2910 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2911 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2912 params.use_short_slot_time =
2913 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2914 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2915 params.basic_rates =
2916 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2917 params.basic_rates_len =
2918 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2919 }
fd8aaaf3
FF		 2920 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2921 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2922 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2923 params.ht_opmode =
2924 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2925
4c476991
JB		 2926 if (!rdev->ops->change_bss)
2927 return -EOPNOTSUPP;
9f1ba906 2928
074ac8df 2929 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2931 return -EOPNOTSUPP;
3b85875a 2932
4c476991 2933 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2934}
2935
b54452b0 2936static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2937 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2938 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2939 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2940 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2941 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2942 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2943};
2944
2945static int parse_reg_rule(struct nlattr *tb[],
2946 struct ieee80211_reg_rule *reg_rule)
2947{
2948 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2949 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2950
2951 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2952 return -EINVAL;
2953 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2954 return -EINVAL;
2955 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2956 return -EINVAL;
2957 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2958 return -EINVAL;
2959 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2960 return -EINVAL;
2961
2962 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2963
2964 freq_range->start_freq_khz =
2965 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2966 freq_range->end_freq_khz =
2967 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2968 freq_range->max_bandwidth_khz =
2969 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2970
2971 power_rule->max_eirp =
2972 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2973
2974 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2975 power_rule->max_antenna_gain =
2976 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2977
2978 return 0;
2979}
2980
2981static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2982{
2983 int r;
2984 char *data = NULL;
2985
80778f18
LR		 2986 /*
2987 * You should only get this when cfg80211 hasn't yet initialized
2988 * completely when built-in to the kernel right between the time
2989 * window between nl80211_init() and regulatory_init(), if that is
2990 * even possible.
2991 */
2992 mutex_lock(&cfg80211_mutex);
2993 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2994 mutex_unlock(&cfg80211_mutex);
2995 return -EINPROGRESS;
80778f18 2996 }
fe33eb39 2997 mutex_unlock(&cfg80211_mutex);
80778f18 2998
fe33eb39
LR		 2999 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3000 return -EINVAL;
b2e1b302
LR		 3001
3002 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3003
fe33eb39
LR		 3004 r = regulatory_hint_user(data);
3005
b2e1b302
LR		 3006 return r;
3007}
3008
24bdd9f4 3009static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3010 struct genl_info *info)
93da9cc1 3011{
4c476991 3012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3013 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3014 struct wireless_dev *wdev = dev->ieee80211_ptr;
3015 struct mesh_config cur_params;
3016 int err = 0;
93da9cc1 3017 void *hdr;
3018 struct nlattr *pinfoattr;
3019 struct sk_buff *msg;
3020
29cbe68c
JB		 3021 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3022 return -EOPNOTSUPP;
3023
24bdd9f4 3024 if (!rdev->ops->get_mesh_config)
4c476991 3025 return -EOPNOTSUPP;
f3f92586 3026
29cbe68c
JB		 3027 wdev_lock(wdev);
3028 /* If not connected, get default parameters */
3029 if (!wdev->mesh_id_len)
3030 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3031 else
24bdd9f4 3032 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3033 &cur_params);
3034 wdev_unlock(wdev);
3035
93da9cc1 3036 if (err)
4c476991 3037 return err;
93da9cc1 3038
3039 /* Draw up a netlink message to send back */
fd2120ca 3040 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3041 if (!msg)
3042 return -ENOMEM;
93da9cc1 3043 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3044 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3045 if (!hdr)
efe1cf0c 3046 goto out;
24bdd9f4 3047 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3048 if (!pinfoattr)
3049 goto nla_put_failure;
3050 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3051 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3052 cur_params.dot11MeshRetryTimeout);
3053 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3054 cur_params.dot11MeshConfirmTimeout);
3055 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3056 cur_params.dot11MeshHoldingTimeout);
3057 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3058 cur_params.dot11MeshMaxPeerLinks);
3059 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3060 cur_params.dot11MeshMaxRetries);
3061 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3062 cur_params.dot11MeshTTL);
45904f21
JC		 3063 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3064 cur_params.element_ttl);
93da9cc1 3065 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3066 cur_params.auto_open_plinks);
3067 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3068 cur_params.dot11MeshHWMPmaxPREQretries);
3069 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3070 cur_params.path_refresh_time);
3071 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3072 cur_params.min_discovery_timeout);
3073 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3074 cur_params.dot11MeshHWMPactivePathTimeout);
3075 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3076 cur_params.dot11MeshHWMPpreqMinInterval);
3077 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3078 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3079 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3080 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3081 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3082 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3083 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3084 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3085 nla_nest_end(msg, pinfoattr);
3086 genlmsg_end(msg, hdr);
4c476991 3087 return genlmsg_reply(msg, info);
93da9cc1 3088
3b85875a 3089 nla_put_failure:
93da9cc1 3090 genlmsg_cancel(msg, hdr);
efe1cf0c 3091 out:
d080e275 3092 nlmsg_free(msg);
4c476991 3093 return -ENOBUFS;
93da9cc1 3094}
3095
b54452b0 3096static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3097 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3098 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3099 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3100 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3101 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3102 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3103 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3104 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3105
3106 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3107 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3108 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3109 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3110 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3111 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3112 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3113 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3114 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3115};
3116
c80d545d
JC		 3117static const struct nla_policy
3118 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3119 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3120 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3121 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3122 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3123 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3124 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3125};
3126
24bdd9f4 3127static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3128 struct mesh_config *cfg,
3129 u32 *mask_out)
93da9cc1 3130{
93da9cc1 3131 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3132 u32 mask = 0;
93da9cc1 3133
bd90fdcc
JB		 3134#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3135do {\
3136 if (table[attr_num]) {\
3137 cfg->param = nla_fn(table[attr_num]); \
3138 mask |= (1 << (attr_num - 1)); \
3139 } \
3140} while (0);\
3141
3142
24bdd9f4 3143 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3144 return -EINVAL;
3145 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3146 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3147 nl80211_meshconf_params_policy))
93da9cc1 3148 return -EINVAL;
3149
93da9cc1 3150 /* This makes sure that there aren't more than 32 mesh config
3151 * parameters (otherwise our bitfield scheme would not work.) */
3152 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3153
3154 /* Fill in the params struct */
93da9cc1 3155 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3156 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3157 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3158 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3159 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3160 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3161 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3162 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3164 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3165 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3166 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3167 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3168 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3170 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3171 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3172 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3173 nla_get_u8);
3174 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3175 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3177 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3178 nla_get_u16);
3179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3180 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3181 nla_get_u32);
3182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3183 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3184 nla_get_u16);
3185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3186 dot11MeshHWMPnetDiameterTraversalTime,
3187 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3188 nla_get_u16);
63c5723b
RP		 3189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3190 dot11MeshHWMPRootMode, mask,
3191 NL80211_MESHCONF_HWMP_ROOTMODE,
3192 nla_get_u8);
0507e159
JC		 3193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3194 dot11MeshHWMPRannInterval, mask,
3195 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3196 nla_get_u16);
16dd7267
JC		 3197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3198 dot11MeshGateAnnouncementProtocol, mask,
3199 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3200 nla_get_u8);
bd90fdcc
JB		 3201 if (mask_out)
3202 *mask_out = mask;
c80d545d 3203
bd90fdcc
JB		 3204 return 0;
3205
3206#undef FILL_IN_MESH_PARAM_IF_SET
3207}
3208
c80d545d
JC		 3209static int nl80211_parse_mesh_setup(struct genl_info *info,
3210 struct mesh_setup *setup)
3211{
3212 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3213
3214 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3215 return -EINVAL;
3216 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3217 info->attrs[NL80211_ATTR_MESH_SETUP],
3218 nl80211_mesh_setup_params_policy))
3219 return -EINVAL;
3220
3221 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3222 setup->path_sel_proto =
3223 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3224 IEEE80211_PATH_PROTOCOL_VENDOR :
3225 IEEE80211_PATH_PROTOCOL_HWMP;
3226
3227 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3228 setup->path_metric =
3229 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3230 IEEE80211_PATH_METRIC_VENDOR :
3231 IEEE80211_PATH_METRIC_AIRTIME;
3232
581a8b0f
JC		 3233
3234 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3235 struct nlattr *ieattr =
581a8b0f 3236 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3237 if (!is_valid_ie_attr(ieattr))
3238 return -EINVAL;
581a8b0f
JC		 3239 setup->ie = nla_data(ieattr);
3240 setup->ie_len = nla_len(ieattr);
c80d545d 3241 }
b130e5ce
JC		 3242 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3243 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3244
3245 return 0;
3246}
3247
24bdd9f4 3248static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3249 struct genl_info *info)
bd90fdcc
JB		 3250{
3251 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3252 struct net_device *dev = info->user_ptr[1];
29cbe68c 3253 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3254 struct mesh_config cfg;
3255 u32 mask;
3256 int err;
3257
29cbe68c
JB		 3258 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3259 return -EOPNOTSUPP;
3260
24bdd9f4 3261 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3262 return -EOPNOTSUPP;
3263
24bdd9f4 3264 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3265 if (err)
3266 return err;
3267
29cbe68c
JB		 3268 wdev_lock(wdev);
3269 if (!wdev->mesh_id_len)
3270 err = -ENOLINK;
3271
3272 if (!err)
24bdd9f4 3273 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3274 mask, &cfg);
3275
3276 wdev_unlock(wdev);
3277
3278 return err;
93da9cc1 3279}
3280
f130347c
LR		 3281static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3282{
3283 struct sk_buff *msg;
3284 void *hdr = NULL;
3285 struct nlattr *nl_reg_rules;
3286 unsigned int i;
3287 int err = -EINVAL;
3288
a1794390 3289 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3290
3291 if (!cfg80211_regdomain)
3292 goto out;
3293
fd2120ca 3294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3295 if (!msg) {
3296 err = -ENOBUFS;
3297 goto out;
3298 }
3299
3300 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3301 NL80211_CMD_GET_REG);
3302 if (!hdr)
efe1cf0c 3303 goto put_failure;
f130347c
LR		 3304
3305 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3306 cfg80211_regdomain->alpha2);
3307
3308 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3309 if (!nl_reg_rules)
3310 goto nla_put_failure;
3311
3312 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3313 struct nlattr *nl_reg_rule;
3314 const struct ieee80211_reg_rule *reg_rule;
3315 const struct ieee80211_freq_range *freq_range;
3316 const struct ieee80211_power_rule *power_rule;
3317
3318 reg_rule = &cfg80211_regdomain->reg_rules[i];
3319 freq_range = &reg_rule->freq_range;
3320 power_rule = &reg_rule->power_rule;
3321
3322 nl_reg_rule = nla_nest_start(msg, i);
3323 if (!nl_reg_rule)
3324 goto nla_put_failure;
3325
3326 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3327 reg_rule->flags);
3328 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3329 freq_range->start_freq_khz);
3330 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3331 freq_range->end_freq_khz);
3332 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3333 freq_range->max_bandwidth_khz);
3334 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3335 power_rule->max_antenna_gain);
3336 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3337 power_rule->max_eirp);
3338
3339 nla_nest_end(msg, nl_reg_rule);
3340 }
3341
3342 nla_nest_end(msg, nl_reg_rules);
3343
3344 genlmsg_end(msg, hdr);
134e6375 3345 err = genlmsg_reply(msg, info);
f130347c
LR		 3346 goto out;
3347
3348nla_put_failure:
3349 genlmsg_cancel(msg, hdr);
efe1cf0c 3350put_failure:
d080e275 3351 nlmsg_free(msg);
f130347c
LR		 3352 err = -EMSGSIZE;
3353out:
a1794390 3354 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3355 return err;
3356}
3357
b2e1b302
LR		 3358static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3359{
3360 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3361 struct nlattr *nl_reg_rule;
3362 char *alpha2 = NULL;
3363 int rem_reg_rules = 0, r = 0;
3364 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3365 struct ieee80211_regdomain *rd = NULL;
3366
3367 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3368 return -EINVAL;
3369
3370 if (!info->attrs[NL80211_ATTR_REG_RULES])
3371 return -EINVAL;
3372
3373 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3374
3375 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3376 rem_reg_rules) {
3377 num_rules++;
3378 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3379 return -EINVAL;
b2e1b302
LR		 3380 }
3381
61405e97
LR		 3382 mutex_lock(&cfg80211_mutex);
3383
d0e18f83
LR		 3384 if (!reg_is_valid_request(alpha2)) {
3385 r = -EINVAL;
3386 goto bad_reg;
3387 }
b2e1b302
LR		 3388
3389 size_of_regd = sizeof(struct ieee80211_regdomain) +
3390 (num_rules * sizeof(struct ieee80211_reg_rule));
3391
3392 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3393 if (!rd) {
3394 r = -ENOMEM;
3395 goto bad_reg;
3396 }
b2e1b302
LR		 3397
3398 rd->n_reg_rules = num_rules;
3399 rd->alpha2[0] = alpha2[0];
3400 rd->alpha2[1] = alpha2[1];
3401
3402 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3403 rem_reg_rules) {
3404 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3405 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3406 reg_rule_policy);
3407 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3408 if (r)
3409 goto bad_reg;
3410
3411 rule_idx++;
3412
d0e18f83
LR		 3413 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3414 r = -EINVAL;
b2e1b302 3415 goto bad_reg;
d0e18f83 3416 }
b2e1b302
LR		 3417 }
3418
3419 BUG_ON(rule_idx != num_rules);
3420
b2e1b302 3421 r = set_regdom(rd);
61405e97 3422
a1794390 3423 mutex_unlock(&cfg80211_mutex);
d0e18f83 3424
b2e1b302
LR		 3425 return r;
3426
d2372b31 3427 bad_reg:
61405e97 3428 mutex_unlock(&cfg80211_mutex);
b2e1b302 3429 kfree(rd);
d0e18f83 3430 return r;
b2e1b302
LR		 3431}
3432
83f5e2cf
JB		 3433static int validate_scan_freqs(struct nlattr *freqs)
3434{
3435 struct nlattr *attr1, *attr2;
3436 int n_channels = 0, tmp1, tmp2;
3437
3438 nla_for_each_nested(attr1, freqs, tmp1) {
3439 n_channels++;
3440 /*
3441 * Some hardware has a limited channel list for
3442 * scanning, and it is pretty much nonsensical
3443 * to scan for a channel twice, so disallow that
3444 * and don't require drivers to check that the
3445 * channel list they get isn't longer than what
3446 * they can scan, as long as they can scan all
3447 * the channels they registered at once.
3448 */
3449 nla_for_each_nested(attr2, freqs, tmp2)
3450 if (attr1 != attr2 &&
3451 nla_get_u32(attr1) == nla_get_u32(attr2))
3452 return 0;
3453 }
3454
3455 return n_channels;
3456}
3457
2a519311
JB		 3458static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3459{
4c476991
JB		 3460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3461 struct net_device *dev = info->user_ptr[1];
2a519311 3462 struct cfg80211_scan_request *request;
2a519311
JB		 3463 struct nlattr *attr;
3464 struct wiphy *wiphy;
83f5e2cf 3465 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3466 size_t ie_len;
2a519311 3467
f4a11bb0
JB		 3468 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3469 return -EINVAL;
3470
79c97e97 3471 wiphy = &rdev->wiphy;
2a519311 3472
4c476991
JB		 3473 if (!rdev->ops->scan)
3474 return -EOPNOTSUPP;
2a519311 3475
4c476991
JB		 3476 if (rdev->scan_req)
3477 return -EBUSY;
2a519311
JB		 3478
3479 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3480 n_channels = validate_scan_freqs(
3481 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3482 if (!n_channels)
3483 return -EINVAL;
2a519311 3484 } else {
34850ab2 3485 enum ieee80211_band band;
83f5e2cf
JB		 3486 n_channels = 0;
3487
2a519311
JB		 3488 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3489 if (wiphy->bands[band])
3490 n_channels += wiphy->bands[band]->n_channels;
3491 }
3492
3493 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3494 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3495 n_ssids++;
3496
4c476991
JB		 3497 if (n_ssids > wiphy->max_scan_ssids)
3498 return -EINVAL;
2a519311 3499
70692ad2
JM		 3500 if (info->attrs[NL80211_ATTR_IE])
3501 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3502 else
3503 ie_len = 0;
3504
4c476991
JB		 3505 if (ie_len > wiphy->max_scan_ie_len)
3506 return -EINVAL;
18a83659 3507
2a519311 3508 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3509 + sizeof(*request->ssids) * n_ssids
3510 + sizeof(*request->channels) * n_channels
70692ad2 3511 + ie_len, GFP_KERNEL);
4c476991
JB		 3512 if (!request)
3513 return -ENOMEM;
2a519311 3514
2a519311 3515 if (n_ssids)
5ba63533 3516 request->ssids = (void *)&request->channels[n_channels];
2a519311 3517 request->n_ssids = n_ssids;
70692ad2
JM		 3518 if (ie_len) {
3519 if (request->ssids)
3520 request->ie = (void *)(request->ssids + n_ssids);
3521 else
3522 request->ie = (void *)(request->channels + n_channels);
3523 }
2a519311 3524
584991dc 3525 i = 0;
2a519311
JB		 3526 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3527 /* user specified, bail out if channel not found */
2a519311 3528 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3529 struct ieee80211_channel *chan;
3530
3531 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3532
3533 if (!chan) {
2a519311
JB		 3534 err = -EINVAL;
3535 goto out_free;
3536 }
584991dc
JB		 3537
3538 /* ignore disabled channels */
3539 if (chan->flags & IEEE80211_CHAN_DISABLED)
3540 continue;
3541
3542 request->channels[i] = chan;
2a519311
JB		 3543 i++;
3544 }
3545 } else {
34850ab2
JB		 3546 enum ieee80211_band band;
3547
2a519311 3548 /* all channels */
2a519311
JB		 3549 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3550 int j;
3551 if (!wiphy->bands[band])
3552 continue;
3553 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3554 struct ieee80211_channel *chan;
3555
3556 chan = &wiphy->bands[band]->channels[j];
3557
3558 if (chan->flags & IEEE80211_CHAN_DISABLED)
3559 continue;
3560
3561 request->channels[i] = chan;
2a519311
JB		 3562 i++;
3563 }
3564 }
3565 }
3566
584991dc
JB		 3567 if (!i) {
3568 err = -EINVAL;
3569 goto out_free;
3570 }
3571
3572 request->n_channels = i;
3573
2a519311
JB		 3574 i = 0;
3575 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3576 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3577 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3578 err = -EINVAL;
3579 goto out_free;
3580 }
57a27e1d 3581 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3582 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3583 i++;
3584 }
3585 }
3586
70692ad2
JM		 3587 if (info->attrs[NL80211_ATTR_IE]) {
3588 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3589 memcpy((void *)request->ie,
3590 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3591 request->ie_len);
3592 }
3593
34850ab2 3594 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3595 if (wiphy->bands[i])
3596 request->rates[i] =
3597 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3598
3599 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3600 nla_for_each_nested(attr,
3601 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3602 tmp) {
3603 enum ieee80211_band band = nla_type(attr);
3604
84404623 3605 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3606 err = -EINVAL;
3607 goto out_free;
3608 }
3609 err = ieee80211_get_ratemask(wiphy->bands[band],
3610 nla_data(attr),
3611 nla_len(attr),
3612 &request->rates[band]);
3613 if (err)
3614 goto out_free;
3615 }
3616 }
3617
463d0183 3618 request->dev = dev;
79c97e97 3619 request->wiphy = &rdev->wiphy;
2a519311 3620
79c97e97
JB		 3621 rdev->scan_req = request;
3622 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3623
463d0183 3624 if (!err) {
79c97e97 3625 nl80211_send_scan_start(rdev, dev);
463d0183 3626 dev_hold(dev);
4c476991 3627 } else {
2a519311 3628 out_free:
79c97e97 3629 rdev->scan_req = NULL;
2a519311
JB		 3630 kfree(request);
3631 }
3b85875a 3632
2a519311
JB		 3633 return err;
3634}
3635
807f8a8c
LC		 3636static int nl80211_start_sched_scan(struct sk_buff *skb,
3637 struct genl_info *info)
3638{
3639 struct cfg80211_sched_scan_request *request;
3640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3641 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3642 struct nlattr *attr;
3643 struct wiphy *wiphy;
a1f1c21c 3644 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3645 u32 interval;
807f8a8c
LC		 3646 enum ieee80211_band band;
3647 size_t ie_len;
a1f1c21c 3648 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3649
3650 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3651 !rdev->ops->sched_scan_start)
3652 return -EOPNOTSUPP;
3653
3654 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3655 return -EINVAL;
3656
bbe6ad6d
LC		 3657 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3658 return -EINVAL;
3659
3660 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3661 if (interval == 0)
3662 return -EINVAL;
3663
807f8a8c
LC		 3664 wiphy = &rdev->wiphy;
3665
3666 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3667 n_channels = validate_scan_freqs(
3668 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3669 if (!n_channels)
3670 return -EINVAL;
3671 } else {
3672 n_channels = 0;
3673
3674 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3675 if (wiphy->bands[band])
3676 n_channels += wiphy->bands[band]->n_channels;
3677 }
3678
3679 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3680 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3681 tmp)
3682 n_ssids++;
3683
93b6aa69 3684 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3685 return -EINVAL;
3686
a1f1c21c
LC		 3687 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3688 nla_for_each_nested(attr,
3689 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3690 tmp)
3691 n_match_sets++;
3692
3693 if (n_match_sets > wiphy->max_match_sets)
3694 return -EINVAL;
3695
807f8a8c
LC		 3696 if (info->attrs[NL80211_ATTR_IE])
3697 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3698 else
3699 ie_len = 0;
3700
5a865bad 3701 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3702 return -EINVAL;
3703
c10841ca
LC		 3704 mutex_lock(&rdev->sched_scan_mtx);
3705
3706 if (rdev->sched_scan_req) {
3707 err = -EINPROGRESS;
3708 goto out;
3709 }
3710
807f8a8c 3711 request = kzalloc(sizeof(*request)
a2cd43c5 3712 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3713 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3714 + sizeof(*request->channels) * n_channels
807f8a8c 3715 + ie_len, GFP_KERNEL);
c10841ca
LC		 3716 if (!request) {
3717 err = -ENOMEM;
3718 goto out;
3719 }
807f8a8c
LC		 3720
3721 if (n_ssids)
3722 request->ssids = (void *)&request->channels[n_channels];
3723 request->n_ssids = n_ssids;
3724 if (ie_len) {
3725 if (request->ssids)
3726 request->ie = (void *)(request->ssids + n_ssids);
3727 else
3728 request->ie = (void *)(request->channels + n_channels);
3729 }
3730
a1f1c21c
LC		 3731 if (n_match_sets) {
3732 if (request->ie)
3733 request->match_sets = (void *)(request->ie + ie_len);
3734 else if (request->ssids)
3735 request->match_sets =
3736 (void *)(request->ssids + n_ssids);
3737 else
3738 request->match_sets =
3739 (void *)(request->channels + n_channels);
3740 }
3741 request->n_match_sets = n_match_sets;
3742
807f8a8c
LC		 3743 i = 0;
3744 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3745 /* user specified, bail out if channel not found */
3746 nla_for_each_nested(attr,
3747 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3748 tmp) {
3749 struct ieee80211_channel *chan;
3750
3751 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3752
3753 if (!chan) {
3754 err = -EINVAL;
3755 goto out_free;
3756 }
3757
3758 /* ignore disabled channels */
3759 if (chan->flags & IEEE80211_CHAN_DISABLED)
3760 continue;
3761
3762 request->channels[i] = chan;
3763 i++;
3764 }
3765 } else {
3766 /* all channels */
3767 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3768 int j;
3769 if (!wiphy->bands[band])
3770 continue;
3771 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3772 struct ieee80211_channel *chan;
3773
3774 chan = &wiphy->bands[band]->channels[j];
3775
3776 if (chan->flags & IEEE80211_CHAN_DISABLED)
3777 continue;
3778
3779 request->channels[i] = chan;
3780 i++;
3781 }
3782 }
3783 }
3784
3785 if (!i) {
3786 err = -EINVAL;
3787 goto out_free;
3788 }
3789
3790 request->n_channels = i;
3791
3792 i = 0;
3793 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3794 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3795 tmp) {
57a27e1d 3796 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3797 err = -EINVAL;
3798 goto out_free;
3799 }
57a27e1d 3800 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3801 memcpy(request->ssids[i].ssid, nla_data(attr),
3802 nla_len(attr));
807f8a8c
LC		 3803 i++;
3804 }
3805 }
3806
a1f1c21c
LC		 3807 i = 0;
3808 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3809 nla_for_each_nested(attr,
3810 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3811 tmp) {
3812 struct nlattr *ssid;
3813
3814 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3815 nla_data(attr), nla_len(attr),
3816 nl80211_match_policy);
3817 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3818 if (ssid) {
3819 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3820 err = -EINVAL;
3821 goto out_free;
3822 }
3823 memcpy(request->match_sets[i].ssid.ssid,
3824 nla_data(ssid), nla_len(ssid));
3825 request->match_sets[i].ssid.ssid_len =
3826 nla_len(ssid);
3827 }
3828 i++;
3829 }
3830 }
3831
807f8a8c
LC		 3832 if (info->attrs[NL80211_ATTR_IE]) {
3833 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3834 memcpy((void *)request->ie,
3835 nla_data(info->attrs[NL80211_ATTR_IE]),
3836 request->ie_len);
3837 }
3838
3839 request->dev = dev;
3840 request->wiphy = &rdev->wiphy;
bbe6ad6d 3841 request->interval = interval;
807f8a8c
LC		 3842
3843 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3844 if (!err) {
3845 rdev->sched_scan_req = request;
3846 nl80211_send_sched_scan(rdev, dev,
3847 NL80211_CMD_START_SCHED_SCAN);
3848 goto out;
3849 }
3850
3851out_free:
3852 kfree(request);
3853out:
c10841ca 3854 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3855 return err;
3856}
3857
3858static int nl80211_stop_sched_scan(struct sk_buff *skb,
3859 struct genl_info *info)
3860{
3861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3862 int err;
807f8a8c
LC		 3863
3864 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3865 !rdev->ops->sched_scan_stop)
3866 return -EOPNOTSUPP;
3867
c10841ca
LC		 3868 mutex_lock(&rdev->sched_scan_mtx);
3869 err = __cfg80211_stop_sched_scan(rdev, false);
3870 mutex_unlock(&rdev->sched_scan_mtx);
3871
3872 return err;
807f8a8c
LC		 3873}
3874
9720bb3a
JB		 3875static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3876 u32 seq, int flags,
2a519311 3877 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3878 struct wireless_dev *wdev,
3879 struct cfg80211_internal_bss *intbss)
2a519311 3880{
48ab905d 3881 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3882 void *hdr;
3883 struct nlattr *bss;
48ab905d
JB		 3884 int i;
3885
3886 ASSERT_WDEV_LOCK(wdev);
2a519311 3887
9720bb3a 3888 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 3889 NL80211_CMD_NEW_SCAN_RESULTS);
3890 if (!hdr)
3891 return -1;
3892
9720bb3a
JB		 3893 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3894
f5ea9120 3895 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3896 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3897
3898 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3899 if (!bss)
3900 goto nla_put_failure;
3901 if (!is_zero_ether_addr(res->bssid))
3902 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3903 if (res->information_elements && res->len_information_elements)
3904 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3905 res->len_information_elements,
3906 res->information_elements);
34a6eddb
JM		 3907 if (res->beacon_ies && res->len_beacon_ies &&
3908 res->beacon_ies != res->information_elements)
3909 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3910 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3911 if (res->tsf)
3912 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3913 if (res->beacon_interval)
3914 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3915 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3916 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3917 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3918 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3919
77965c97 3920 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3921 case CFG80211_SIGNAL_TYPE_MBM:
3922 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3923 break;
3924 case CFG80211_SIGNAL_TYPE_UNSPEC:
3925 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3926 break;
3927 default:
3928 break;
3929 }
3930
48ab905d 3931 switch (wdev->iftype) {
074ac8df 3932 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3933 case NL80211_IFTYPE_STATION:
3934 if (intbss == wdev->current_bss)
3935 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3936 NL80211_BSS_STATUS_ASSOCIATED);
3937 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3938 if (intbss != wdev->auth_bsses[i])
3939 continue;
3940 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3941 NL80211_BSS_STATUS_AUTHENTICATED);
3942 break;
3943 }
3944 break;
3945 case NL80211_IFTYPE_ADHOC:
3946 if (intbss == wdev->current_bss)
3947 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3948 NL80211_BSS_STATUS_IBSS_JOINED);
3949 break;
3950 default:
3951 break;
3952 }
3953
2a519311
JB		 3954 nla_nest_end(msg, bss);
3955
3956 return genlmsg_end(msg, hdr);
3957
3958 nla_put_failure:
3959 genlmsg_cancel(msg, hdr);
3960 return -EMSGSIZE;
3961}
3962
3963static int nl80211_dump_scan(struct sk_buff *skb,
3964 struct netlink_callback *cb)
3965{
48ab905d
JB		 3966 struct cfg80211_registered_device *rdev;
3967 struct net_device *dev;
2a519311 3968 struct cfg80211_internal_bss *scan;
48ab905d 3969 struct wireless_dev *wdev;
2a519311
JB		 3970 int start = cb->args[1], idx = 0;
3971 int err;
3972
67748893
JB		 3973 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3974 if (err)
3975 return err;
2a519311 3976
48ab905d 3977 wdev = dev->ieee80211_ptr;
2a519311 3978
48ab905d
JB		 3979 wdev_lock(wdev);
3980 spin_lock_bh(&rdev->bss_lock);
3981 cfg80211_bss_expire(rdev);
3982
9720bb3a
JB		 3983 cb->seq = rdev->bss_generation;
3984
48ab905d 3985 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3986 if (++idx <= start)
3987 continue;
9720bb3a 3988 if (nl80211_send_bss(skb, cb,
2a519311 3989 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3990 rdev, wdev, scan) < 0) {
2a519311 3991 idx--;
67748893 3992 break;
2a519311
JB		 3993 }
3994 }
3995
48ab905d
JB		 3996 spin_unlock_bh(&rdev->bss_lock);
3997 wdev_unlock(wdev);
2a519311
JB		 3998
3999 cb->args[1] = idx;
67748893 4000 nl80211_finish_netdev_dump(rdev);
2a519311 4001
67748893 4002 return skb->len;
2a519311
JB		 4003}
4004
61fa713c
HS		 4005static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4006 int flags, struct net_device *dev,
4007 struct survey_info *survey)
4008{
4009 void *hdr;
4010 struct nlattr *infoattr;
4011
61fa713c
HS		 4012 hdr = nl80211hdr_put(msg, pid, seq, flags,
4013 NL80211_CMD_NEW_SURVEY_RESULTS);
4014 if (!hdr)
4015 return -ENOMEM;
4016
4017 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4018
4019 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4020 if (!infoattr)
4021 goto nla_put_failure;
4022
4023 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4024 survey->channel->center_freq);
4025 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4026 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4027 survey->noise);
17e5a808
FF		 4028 if (survey->filled & SURVEY_INFO_IN_USE)
4029 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4030 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4031 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4032 survey->channel_time);
4033 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4034 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4035 survey->channel_time_busy);
4036 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4037 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4038 survey->channel_time_ext_busy);
4039 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4040 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4041 survey->channel_time_rx);
4042 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4043 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4044 survey->channel_time_tx);
61fa713c
HS		 4045
4046 nla_nest_end(msg, infoattr);
4047
4048 return genlmsg_end(msg, hdr);
4049
4050 nla_put_failure:
4051 genlmsg_cancel(msg, hdr);
4052 return -EMSGSIZE;
4053}
4054
4055static int nl80211_dump_survey(struct sk_buff *skb,
4056 struct netlink_callback *cb)
4057{
4058 struct survey_info survey;
4059 struct cfg80211_registered_device *dev;
4060 struct net_device *netdev;
61fa713c
HS		 4061 int survey_idx = cb->args[1];
4062 int res;
4063
67748893
JB		 4064 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4065 if (res)
4066 return res;
61fa713c
HS		 4067
4068 if (!dev->ops->dump_survey) {
4069 res = -EOPNOTSUPP;
4070 goto out_err;
4071 }
4072
4073 while (1) {
180cdc79
LR		 4074 struct ieee80211_channel *chan;
4075
61fa713c
HS		 4076 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4077 &survey);
4078 if (res == -ENOENT)
4079 break;
4080 if (res)
4081 goto out_err;
4082
180cdc79
LR		 4083 /* Survey without a channel doesn't make sense */
4084 if (!survey.channel) {
4085 res = -EINVAL;
4086 goto out;
4087 }
4088
4089 chan = ieee80211_get_channel(&dev->wiphy,
4090 survey.channel->center_freq);
4091 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4092 survey_idx++;
4093 continue;
4094 }
4095
61fa713c
HS		 4096 if (nl80211_send_survey(skb,
4097 NETLINK_CB(cb->skb).pid,
4098 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4099 netdev,
4100 &survey) < 0)
4101 goto out;
4102 survey_idx++;
4103 }
4104
4105 out:
4106 cb->args[1] = survey_idx;
4107 res = skb->len;
4108 out_err:
67748893 4109 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4110 return res;
4111}
4112
255e737e
JM		 4113static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4114{
b23aa676
SO		 4115 return auth_type <= NL80211_AUTHTYPE_MAX;
4116}
4117
4118static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4119{
4120 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4121 NL80211_WPA_VERSION_2));
4122}
4123
4124static bool nl80211_valid_akm_suite(u32 akm)
4125{
4126 return akm == WLAN_AKM_SUITE_8021X ||
4127 akm == WLAN_AKM_SUITE_PSK;
4128}
4129
4130static bool nl80211_valid_cipher_suite(u32 cipher)
4131{
4132 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
4133 cipher == WLAN_CIPHER_SUITE_WEP104 ||
4134 cipher == WLAN_CIPHER_SUITE_TKIP ||
4135 cipher == WLAN_CIPHER_SUITE_CCMP ||
4136 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 4137}
4138
b23aa676 4139
636a5d36
JM		 4140static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4141{
4c476991
JB		 4142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4143 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4144 struct ieee80211_channel *chan;
4145 const u8 *bssid, *ssid, *ie = NULL;
4146 int err, ssid_len, ie_len = 0;
4147 enum nl80211_auth_type auth_type;
fffd0934 4148 struct key_parse key;
d5cdfacb 4149 bool local_state_change;
636a5d36 4150
f4a11bb0
JB		 4151 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4152 return -EINVAL;
4153
4154 if (!info->attrs[NL80211_ATTR_MAC])
4155 return -EINVAL;
4156
1778092e
JM		 4157 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4158 return -EINVAL;
4159
19957bb3
JB		 4160 if (!info->attrs[NL80211_ATTR_SSID])
4161 return -EINVAL;
4162
4163 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4164 return -EINVAL;
4165
fffd0934
JB		 4166 err = nl80211_parse_key(info, &key);
4167 if (err)
4168 return err;
4169
4170 if (key.idx >= 0) {
e31b8213
JB		 4171 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4172 return -EINVAL;
fffd0934
JB		 4173 if (!key.p.key || !key.p.key_len)
4174 return -EINVAL;
4175 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4176 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4177 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4178 key.p.key_len != WLAN_KEY_LEN_WEP104))
4179 return -EINVAL;
4180 if (key.idx > 4)
4181 return -EINVAL;
4182 } else {
4183 key.p.key_len = 0;
4184 key.p.key = NULL;
4185 }
4186
afea0b7a
JB		 4187 if (key.idx >= 0) {
4188 int i;
4189 bool ok = false;
4190 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4191 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4192 ok = true;
4193 break;
4194 }
4195 }
4c476991
JB		 4196 if (!ok)
4197 return -EINVAL;
afea0b7a
JB		 4198 }
4199
4c476991
JB		 4200 if (!rdev->ops->auth)
4201 return -EOPNOTSUPP;
636a5d36 4202
074ac8df 4203 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4204 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4205 return -EOPNOTSUPP;
eec60b03 4206
19957bb3 4207 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4208 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4209 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4210 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4211 return -EINVAL;
636a5d36 4212
19957bb3
JB		 4213 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4214 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4215
4216 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4217 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4218 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4219 }
4220
19957bb3 4221 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4222 if (!nl80211_valid_auth_type(auth_type))
4223 return -EINVAL;
636a5d36 4224
d5cdfacb
JM		 4225 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4226
4c476991
JB		 4227 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4228 ssid, ssid_len, ie, ie_len,
4229 key.p.key, key.p.key_len, key.idx,
4230 local_state_change);
636a5d36
JM		 4231}
4232
c0692b8f
JB		 4233static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4234 struct genl_info *info,
3dc27d25
JB		 4235 struct cfg80211_crypto_settings *settings,
4236 int cipher_limit)
b23aa676 4237{
c0b2bbd8
JB		 4238 memset(settings, 0, sizeof(*settings));
4239
b23aa676
SO		 4240 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4241
c0692b8f
JB		 4242 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4243 u16 proto;
4244 proto = nla_get_u16(
4245 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4246 settings->control_port_ethertype = cpu_to_be16(proto);
4247 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4248 proto != ETH_P_PAE)
4249 return -EINVAL;
4250 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4251 settings->control_port_no_encrypt = true;
4252 } else
4253 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4254
b23aa676
SO		 4255 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4256 void *data;
4257 int len, i;
4258
4259 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4260 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4261 settings->n_ciphers_pairwise = len / sizeof(u32);
4262
4263 if (len % sizeof(u32))
4264 return -EINVAL;
4265
3dc27d25 4266 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4267 return -EINVAL;
4268
4269 memcpy(settings->ciphers_pairwise, data, len);
4270
4271 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4272 if (!nl80211_valid_cipher_suite(
4273 settings->ciphers_pairwise[i]))
4274 return -EINVAL;
4275 }
4276
4277 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4278 settings->cipher_group =
4279 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4280 if (!nl80211_valid_cipher_suite(settings->cipher_group))
4281 return -EINVAL;
4282 }
4283
4284 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4285 settings->wpa_versions =
4286 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4287 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4288 return -EINVAL;
4289 }
4290
4291 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4292 void *data;
4293 int len, i;
4294
4295 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4296 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4297 settings->n_akm_suites = len / sizeof(u32);
4298
4299 if (len % sizeof(u32))
4300 return -EINVAL;
4301
4302 memcpy(settings->akm_suites, data, len);
4303
4304 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4305 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
4306 return -EINVAL;
4307 }
4308
4309 return 0;
4310}
4311
636a5d36
JM		 4312static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4313{
4c476991
JB		 4314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4315 struct net_device *dev = info->user_ptr[1];
19957bb3 4316 struct cfg80211_crypto_settings crypto;
f444de05 4317 struct ieee80211_channel *chan;
3e5d7649 4318 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4319 int err, ssid_len, ie_len = 0;
4320 bool use_mfp = false;
636a5d36 4321
f4a11bb0
JB		 4322 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4323 return -EINVAL;
4324
4325 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4326 !info->attrs[NL80211_ATTR_SSID] ||
4327 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4328 return -EINVAL;
4329
4c476991
JB		 4330 if (!rdev->ops->assoc)
4331 return -EOPNOTSUPP;
636a5d36 4332
074ac8df 4333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4334 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4335 return -EOPNOTSUPP;
eec60b03 4336
19957bb3 4337 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4338
19957bb3
JB		 4339 chan = ieee80211_get_channel(&rdev->wiphy,
4340 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4341 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4342 return -EINVAL;
636a5d36 4343
19957bb3
JB		 4344 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4345 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4346
4347 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4348 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4349 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4350 }
4351
dc6382ce 4352 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4353 enum nl80211_mfp mfp =
dc6382ce 4354 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4355 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4356 use_mfp = true;
4c476991
JB		 4357 else if (mfp != NL80211_MFP_NO)
4358 return -EINVAL;
dc6382ce
JM		 4359 }
4360
3e5d7649
JB		 4361 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4362 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4363
c0692b8f 4364 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4365 if (!err)
3e5d7649
JB		 4366 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4367 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4368 &crypto);
636a5d36 4369
636a5d36
JM		 4370 return err;
4371}
4372
4373static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4374{
4c476991
JB		 4375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4376 struct net_device *dev = info->user_ptr[1];
19957bb3 4377 const u8 *ie = NULL, *bssid;
4c476991 4378 int ie_len = 0;
19957bb3 4379 u16 reason_code;
d5cdfacb 4380 bool local_state_change;
636a5d36 4381
f4a11bb0
JB		 4382 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4383 return -EINVAL;
4384
4385 if (!info->attrs[NL80211_ATTR_MAC])
4386 return -EINVAL;
4387
4388 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4389 return -EINVAL;
4390
4c476991
JB		 4391 if (!rdev->ops->deauth)
4392 return -EOPNOTSUPP;
636a5d36 4393
074ac8df 4394 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4396 return -EOPNOTSUPP;
eec60b03 4397
19957bb3 4398 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4399
19957bb3
JB		 4400 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4401 if (reason_code == 0) {
f4a11bb0 4402 /* Reason Code 0 is reserved */
4c476991 4403 return -EINVAL;
255e737e 4404 }
636a5d36
JM		 4405
4406 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4407 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4408 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4409 }
4410
d5cdfacb
JM		 4411 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4412
4c476991
JB		 4413 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4414 local_state_change);
636a5d36
JM		 4415}
4416
4417static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4418{
4c476991
JB		 4419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4420 struct net_device *dev = info->user_ptr[1];
19957bb3 4421 const u8 *ie = NULL, *bssid;
4c476991 4422 int ie_len = 0;
19957bb3 4423 u16 reason_code;
d5cdfacb 4424 bool local_state_change;
636a5d36 4425
f4a11bb0
JB		 4426 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4427 return -EINVAL;
4428
4429 if (!info->attrs[NL80211_ATTR_MAC])
4430 return -EINVAL;
4431
4432 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4433 return -EINVAL;
4434
4c476991
JB		 4435 if (!rdev->ops->disassoc)
4436 return -EOPNOTSUPP;
636a5d36 4437
074ac8df 4438 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4439 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4440 return -EOPNOTSUPP;
eec60b03 4441
19957bb3 4442 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4443
19957bb3
JB		 4444 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4445 if (reason_code == 0) {
f4a11bb0 4446 /* Reason Code 0 is reserved */
4c476991 4447 return -EINVAL;
255e737e 4448 }
636a5d36
JM		 4449
4450 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4451 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4452 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4453 }
4454
d5cdfacb
JM		 4455 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4456
4c476991
JB		 4457 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4458 local_state_change);
636a5d36
JM		 4459}
4460
dd5b4cc7
FF		 4461static bool
4462nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4463 int mcast_rate[IEEE80211_NUM_BANDS],
4464 int rateval)
4465{
4466 struct wiphy *wiphy = &rdev->wiphy;
4467 bool found = false;
4468 int band, i;
4469
4470 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4471 struct ieee80211_supported_band *sband;
4472
4473 sband = wiphy->bands[band];
4474 if (!sband)
4475 continue;
4476
4477 for (i = 0; i < sband->n_bitrates; i++) {
4478 if (sband->bitrates[i].bitrate == rateval) {
4479 mcast_rate[band] = i + 1;
4480 found = true;
4481 break;
4482 }
4483 }
4484 }
4485
4486 return found;
4487}
4488
04a773ad
JB		 4489static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4490{
4c476991
JB		 4491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4492 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4493 struct cfg80211_ibss_params ibss;
4494 struct wiphy *wiphy;
fffd0934 4495 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4496 int err;
4497
8e30bc55
JB		 4498 memset(&ibss, 0, sizeof(ibss));
4499
04a773ad
JB		 4500 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4501 return -EINVAL;
4502
4503 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4504 !info->attrs[NL80211_ATTR_SSID] ||
4505 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4506 return -EINVAL;
4507
8e30bc55
JB		 4508 ibss.beacon_interval = 100;
4509
4510 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4511 ibss.beacon_interval =
4512 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4513 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4514 return -EINVAL;
4515 }
4516
4c476991
JB		 4517 if (!rdev->ops->join_ibss)
4518 return -EOPNOTSUPP;
04a773ad 4519
4c476991
JB		 4520 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4521 return -EOPNOTSUPP;
04a773ad 4522
79c97e97 4523 wiphy = &rdev->wiphy;
04a773ad
JB		 4524
4525 if (info->attrs[NL80211_ATTR_MAC])
4526 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4527 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4528 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4529
4530 if (info->attrs[NL80211_ATTR_IE]) {
4531 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4532 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4533 }
4534
4535 ibss.channel = ieee80211_get_channel(wiphy,
4536 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4537 if (!ibss.channel ||
4538 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4539 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4540 return -EINVAL;
04a773ad
JB		 4541
4542 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4543 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4544
fbd2c8dc
TP		 4545 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4546 u8 *rates =
4547 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4548 int n_rates =
4549 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4550 struct ieee80211_supported_band *sband =
4551 wiphy->bands[ibss.channel->band];
34850ab2 4552 int err;
fbd2c8dc 4553
34850ab2
JB		 4554 err = ieee80211_get_ratemask(sband, rates, n_rates,
4555 &ibss.basic_rates);
4556 if (err)
4557 return err;
fbd2c8dc 4558 }
dd5b4cc7
FF		 4559
4560 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4561 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4562 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4563 return -EINVAL;
fbd2c8dc 4564
4c476991
JB		 4565 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4566 connkeys = nl80211_parse_connkeys(rdev,
4567 info->attrs[NL80211_ATTR_KEYS]);
4568 if (IS_ERR(connkeys))
4569 return PTR_ERR(connkeys);
4570 }
04a773ad 4571
4c476991 4572 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4573 if (err)
4574 kfree(connkeys);
04a773ad
JB		 4575 return err;
4576}
4577
4578static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4579{
4c476991
JB		 4580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4581 struct net_device *dev = info->user_ptr[1];
04a773ad 4582
4c476991
JB		 4583 if (!rdev->ops->leave_ibss)
4584 return -EOPNOTSUPP;
04a773ad 4585
4c476991
JB		 4586 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4587 return -EOPNOTSUPP;
04a773ad 4588
4c476991 4589 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4590}
4591
aff89a9b
JB		 4592#ifdef CONFIG_NL80211_TESTMODE
4593static struct genl_multicast_group nl80211_testmode_mcgrp = {
4594 .name = "testmode",
4595};
4596
4597static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4598{
4c476991 4599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4600 int err;
4601
4602 if (!info->attrs[NL80211_ATTR_TESTDATA])
4603 return -EINVAL;
4604
aff89a9b
JB		 4605 err = -EOPNOTSUPP;
4606 if (rdev->ops->testmode_cmd) {
4607 rdev->testmode_info = info;
4608 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4609 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4610 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4611 rdev->testmode_info = NULL;
4612 }
4613
aff89a9b
JB		 4614 return err;
4615}
4616
71063f0e
WYG		 4617static int nl80211_testmode_dump(struct sk_buff *skb,
4618 struct netlink_callback *cb)
4619{
4620 struct cfg80211_registered_device *dev;
4621 int err;
4622 long phy_idx;
4623 void *data = NULL;
4624 int data_len = 0;
4625
4626 if (cb->args[0]) {
4627 /*
4628 * 0 is a valid index, but not valid for args[0],
4629 * so we need to offset by 1.
4630 */
4631 phy_idx = cb->args[0] - 1;
4632 } else {
4633 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4634 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4635 nl80211_policy);
4636 if (err)
4637 return err;
4638 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4639 return -EINVAL;
4640 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4641 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4642 cb->args[1] =
4643 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4644 }
4645
4646 if (cb->args[1]) {
4647 data = nla_data((void *)cb->args[1]);
4648 data_len = nla_len((void *)cb->args[1]);
4649 }
4650
4651 mutex_lock(&cfg80211_mutex);
4652 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4653 if (!dev) {
4654 mutex_unlock(&cfg80211_mutex);
4655 return -ENOENT;
4656 }
4657 cfg80211_lock_rdev(dev);
4658 mutex_unlock(&cfg80211_mutex);
4659
4660 if (!dev->ops->testmode_dump) {
4661 err = -EOPNOTSUPP;
4662 goto out_err;
4663 }
4664
4665 while (1) {
4666 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4667 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4668 NL80211_CMD_TESTMODE);
4669 struct nlattr *tmdata;
4670
4671 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4672 genlmsg_cancel(skb, hdr);
4673 break;
4674 }
4675
4676 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4677 if (!tmdata) {
4678 genlmsg_cancel(skb, hdr);
4679 break;
4680 }
4681 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4682 data, data_len);
4683 nla_nest_end(skb, tmdata);
4684
4685 if (err == -ENOBUFS || err == -ENOENT) {
4686 genlmsg_cancel(skb, hdr);
4687 break;
4688 } else if (err) {
4689 genlmsg_cancel(skb, hdr);
4690 goto out_err;
4691 }
4692
4693 genlmsg_end(skb, hdr);
4694 }
4695
4696 err = skb->len;
4697 /* see above */
4698 cb->args[0] = phy_idx + 1;
4699 out_err:
4700 cfg80211_unlock_rdev(dev);
4701 return err;
4702}
4703
aff89a9b
JB		 4704static struct sk_buff *
4705__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4706 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4707{
4708 struct sk_buff *skb;
4709 void *hdr;
4710 struct nlattr *data;
4711
4712 skb = nlmsg_new(approxlen + 100, gfp);
4713 if (!skb)
4714 return NULL;
4715
4716 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4717 if (!hdr) {
4718 kfree_skb(skb);
4719 return NULL;
4720 }
4721
4722 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4723 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4724
4725 ((void **)skb->cb)[0] = rdev;
4726 ((void **)skb->cb)[1] = hdr;
4727 ((void **)skb->cb)[2] = data;
4728
4729 return skb;
4730
4731 nla_put_failure:
4732 kfree_skb(skb);
4733 return NULL;
4734}
4735
4736struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4737 int approxlen)
4738{
4739 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4740
4741 if (WARN_ON(!rdev->testmode_info))
4742 return NULL;
4743
4744 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4745 rdev->testmode_info->snd_pid,
4746 rdev->testmode_info->snd_seq,
4747 GFP_KERNEL);
4748}
4749EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4750
4751int cfg80211_testmode_reply(struct sk_buff *skb)
4752{
4753 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4754 void *hdr = ((void **)skb->cb)[1];
4755 struct nlattr *data = ((void **)skb->cb)[2];
4756
4757 if (WARN_ON(!rdev->testmode_info)) {
4758 kfree_skb(skb);
4759 return -EINVAL;
4760 }
4761
4762 nla_nest_end(skb, data);
4763 genlmsg_end(skb, hdr);
4764 return genlmsg_reply(skb, rdev->testmode_info);
4765}
4766EXPORT_SYMBOL(cfg80211_testmode_reply);
4767
4768struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4769 int approxlen, gfp_t gfp)
4770{
4771 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4772
4773 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4774}
4775EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4776
4777void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4778{
4779 void *hdr = ((void **)skb->cb)[1];
4780 struct nlattr *data = ((void **)skb->cb)[2];
4781
4782 nla_nest_end(skb, data);
4783 genlmsg_end(skb, hdr);
4784 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4785}
4786EXPORT_SYMBOL(cfg80211_testmode_event);
4787#endif
4788
b23aa676
SO		 4789static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4790{
4c476991
JB		 4791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4792 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4793 struct cfg80211_connect_params connect;
4794 struct wiphy *wiphy;
fffd0934 4795 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4796 int err;
4797
4798 memset(&connect, 0, sizeof(connect));
4799
4800 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4801 return -EINVAL;
4802
4803 if (!info->attrs[NL80211_ATTR_SSID] ||
4804 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4805 return -EINVAL;
4806
4807 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4808 connect.auth_type =
4809 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4810 if (!nl80211_valid_auth_type(connect.auth_type))
4811 return -EINVAL;
4812 } else
4813 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4814
4815 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4816
c0692b8f 4817 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4818 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4819 if (err)
4820 return err;
b23aa676 4821
074ac8df 4822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4823 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4824 return -EOPNOTSUPP;
b23aa676 4825
79c97e97 4826 wiphy = &rdev->wiphy;
b23aa676 4827
b23aa676
SO		 4828 if (info->attrs[NL80211_ATTR_MAC])
4829 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4830 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4831 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4832
4833 if (info->attrs[NL80211_ATTR_IE]) {
4834 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4835 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4836 }
4837
4838 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4839 connect.channel =
4840 ieee80211_get_channel(wiphy,
4841 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4842 if (!connect.channel ||
4c476991
JB		 4843 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4844 return -EINVAL;
b23aa676
SO		 4845 }
4846
fffd0934
JB		 4847 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4848 connkeys = nl80211_parse_connkeys(rdev,
4849 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4850 if (IS_ERR(connkeys))
4851 return PTR_ERR(connkeys);
fffd0934
JB		 4852 }
4853
4854 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4855 if (err)
4856 kfree(connkeys);
b23aa676
SO		 4857 return err;
4858}
4859
4860static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4861{
4c476991
JB		 4862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4863 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4864 u16 reason;
4865
4866 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4867 reason = WLAN_REASON_DEAUTH_LEAVING;
4868 else
4869 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4870
4871 if (reason == 0)
4872 return -EINVAL;
4873
074ac8df 4874 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4875 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4876 return -EOPNOTSUPP;
b23aa676 4877
4c476991 4878 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4879}
4880
463d0183
JB		 4881static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4882{
4c476991 4883 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4884 struct net *net;
4885 int err;
4886 u32 pid;
4887
4888 if (!info->attrs[NL80211_ATTR_PID])
4889 return -EINVAL;
4890
4891 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4892
463d0183 4893 net = get_net_ns_by_pid(pid);
4c476991
JB		 4894 if (IS_ERR(net))
4895 return PTR_ERR(net);
463d0183
JB		 4896
4897 err = 0;
4898
4899 /* check if anything to do */
4c476991
JB		 4900 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4901 err = cfg80211_switch_netns(rdev, net);
463d0183 4902
463d0183 4903 put_net(net);
463d0183
JB		 4904 return err;
4905}
4906
67fbb16b
SO		 4907static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4908{
4c476991 4909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4910 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4911 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4912 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4913 struct cfg80211_pmksa pmksa;
4914
4915 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4916
4917 if (!info->attrs[NL80211_ATTR_MAC])
4918 return -EINVAL;
4919
4920 if (!info->attrs[NL80211_ATTR_PMKID])
4921 return -EINVAL;
4922
67fbb16b
SO		 4923 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4924 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4925
074ac8df 4926 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4927 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4928 return -EOPNOTSUPP;
67fbb16b
SO		 4929
4930 switch (info->genlhdr->cmd) {
4931 case NL80211_CMD_SET_PMKSA:
4932 rdev_ops = rdev->ops->set_pmksa;
4933 break;
4934 case NL80211_CMD_DEL_PMKSA:
4935 rdev_ops = rdev->ops->del_pmksa;
4936 break;
4937 default:
4938 WARN_ON(1);
4939 break;
4940 }
4941
4c476991
JB		 4942 if (!rdev_ops)
4943 return -EOPNOTSUPP;
67fbb16b 4944
4c476991 4945 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4946}
4947
4948static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4949{
4c476991
JB		 4950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4951 struct net_device *dev = info->user_ptr[1];
67fbb16b 4952
074ac8df 4953 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4954 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4955 return -EOPNOTSUPP;
67fbb16b 4956
4c476991
JB		 4957 if (!rdev->ops->flush_pmksa)
4958 return -EOPNOTSUPP;
67fbb16b 4959
4c476991 4960 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4961}
4962
9588bbd5
JM		 4963static int nl80211_remain_on_channel(struct sk_buff *skb,
4964 struct genl_info *info)
4965{
4c476991
JB		 4966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4967 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4968 struct ieee80211_channel *chan;
4969 struct sk_buff *msg;
4970 void *hdr;
4971 u64 cookie;
4972 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4973 u32 freq, duration;
4974 int err;
4975
4976 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4977 !info->attrs[NL80211_ATTR_DURATION])
4978 return -EINVAL;
4979
4980 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4981
4982 /*
4983 * We should be on that channel for at least one jiffie,
4984 * and more than 5 seconds seems excessive.
4985 */
a293911d
JB		 4986 if (!duration || !msecs_to_jiffies(duration) ||
4987 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4988 return -EINVAL;
4989
4c476991
JB		 4990 if (!rdev->ops->remain_on_channel)
4991 return -EOPNOTSUPP;
9588bbd5 4992
9588bbd5
JM		 4993 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4994 channel_type = nla_get_u32(
4995 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4996 if (channel_type != NL80211_CHAN_NO_HT &&
4997 channel_type != NL80211_CHAN_HT20 &&
4998 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4999 channel_type != NL80211_CHAN_HT40MINUS)
5000 return -EINVAL;
9588bbd5
JM		 5001 }
5002
5003 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5004 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5005 if (chan == NULL)
5006 return -EINVAL;
9588bbd5
JM		 5007
5008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5009 if (!msg)
5010 return -ENOMEM;
9588bbd5
JM		 5011
5012 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5013 NL80211_CMD_REMAIN_ON_CHANNEL);
5014
5015 if (IS_ERR(hdr)) {
5016 err = PTR_ERR(hdr);
5017 goto free_msg;
5018 }
5019
5020 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5021 channel_type, duration, &cookie);
5022
5023 if (err)
5024 goto free_msg;
5025
5026 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5027
5028 genlmsg_end(msg, hdr);
4c476991
JB		 5029
5030 return genlmsg_reply(msg, info);
9588bbd5
JM		 5031
5032 nla_put_failure:
5033 err = -ENOBUFS;
5034 free_msg:
5035 nlmsg_free(msg);
9588bbd5
JM		 5036 return err;
5037}
5038
5039static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5040 struct genl_info *info)
5041{
4c476991
JB		 5042 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5043 struct net_device *dev = info->user_ptr[1];
9588bbd5 5044 u64 cookie;
9588bbd5
JM		 5045
5046 if (!info->attrs[NL80211_ATTR_COOKIE])
5047 return -EINVAL;
5048
4c476991
JB		 5049 if (!rdev->ops->cancel_remain_on_channel)
5050 return -EOPNOTSUPP;
9588bbd5 5051
9588bbd5
JM		 5052 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5053
4c476991 5054 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5055}
5056
13ae75b1
JM		 5057static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5058 u8 *rates, u8 rates_len)
5059{
5060 u8 i;
5061 u32 mask = 0;
5062
5063 for (i = 0; i < rates_len; i++) {
5064 int rate = (rates[i] & 0x7f) * 5;
5065 int ridx;
5066 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5067 struct ieee80211_rate *srate =
5068 &sband->bitrates[ridx];
5069 if (rate == srate->bitrate) {
5070 mask |= 1 << ridx;
5071 break;
5072 }
5073 }
5074 if (ridx == sband->n_bitrates)
5075 return 0; /* rate not found */
5076 }
5077
5078 return mask;
5079}
5080
b54452b0 5081static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5082 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5083 .len = NL80211_MAX_SUPP_RATES },
5084};
5085
5086static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5087 struct genl_info *info)
5088{
5089 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5091 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5092 int rem, i;
5093 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5094 struct nlattr *tx_rates;
5095 struct ieee80211_supported_band *sband;
5096
5097 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5098 return -EINVAL;
5099
4c476991
JB		 5100 if (!rdev->ops->set_bitrate_mask)
5101 return -EOPNOTSUPP;
13ae75b1
JM		 5102
5103 memset(&mask, 0, sizeof(mask));
5104 /* Default to all rates enabled */
5105 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5106 sband = rdev->wiphy.bands[i];
5107 mask.control[i].legacy =
5108 sband ? (1 << sband->n_bitrates) - 1 : 0;
5109 }
5110
5111 /*
5112 * The nested attribute uses enum nl80211_band as the index. This maps
5113 * directly to the enum ieee80211_band values used in cfg80211.
5114 */
5115 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5116 {
5117 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5118 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5119 return -EINVAL;
13ae75b1 5120 sband = rdev->wiphy.bands[band];
4c476991
JB		 5121 if (sband == NULL)
5122 return -EINVAL;
13ae75b1
JM		 5123 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5124 nla_len(tx_rates), nl80211_txattr_policy);
5125 if (tb[NL80211_TXRATE_LEGACY]) {
5126 mask.control[band].legacy = rateset_to_mask(
5127 sband,
5128 nla_data(tb[NL80211_TXRATE_LEGACY]),
5129 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5130 if (mask.control[band].legacy == 0)
5131 return -EINVAL;
13ae75b1
JM		 5132 }
5133 }
5134
4c476991 5135 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5136}
5137
2e161f78 5138static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5139{
4c476991
JB		 5140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5141 struct net_device *dev = info->user_ptr[1];
2e161f78 5142 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5143
5144 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5145 return -EINVAL;
5146
2e161f78
JB		 5147 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5148 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5149
9d38d85d 5150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5153 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5154 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5157 return -EOPNOTSUPP;
026331c4
JM		 5158
5159 /* not much point in registering if we can't reply */
4c476991
JB		 5160 if (!rdev->ops->mgmt_tx)
5161 return -EOPNOTSUPP;
026331c4 5162
4c476991 5163 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5164 frame_type,
026331c4
JM		 5165 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5166 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5167}
5168
2e161f78 5169static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5170{
4c476991
JB		 5171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5172 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5173 struct ieee80211_channel *chan;
5174 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5175 bool channel_type_valid = false;
026331c4
JM		 5176 u32 freq;
5177 int err;
5178 void *hdr;
5179 u64 cookie;
5180 struct sk_buff *msg;
f7ca38df
JB		 5181 unsigned int wait = 0;
5182 bool offchan;
026331c4
JM		 5183
5184 if (!info->attrs[NL80211_ATTR_FRAME] ||
5185 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5186 return -EINVAL;
5187
4c476991
JB		 5188 if (!rdev->ops->mgmt_tx)
5189 return -EOPNOTSUPP;
026331c4 5190
9d38d85d 5191 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5192 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5193 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5194 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5195 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5196 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5197 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5198 return -EOPNOTSUPP;
026331c4 5199
f7ca38df
JB		 5200 if (info->attrs[NL80211_ATTR_DURATION]) {
5201 if (!rdev->ops->mgmt_tx_cancel_wait)
5202 return -EINVAL;
5203 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5204 }
5205
026331c4
JM		 5206 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5207 channel_type = nla_get_u32(
5208 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5209 if (channel_type != NL80211_CHAN_NO_HT &&
5210 channel_type != NL80211_CHAN_HT20 &&
5211 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5212 channel_type != NL80211_CHAN_HT40MINUS)
5213 return -EINVAL;
252aa631 5214 channel_type_valid = true;
026331c4
JM		 5215 }
5216
f7ca38df
JB		 5217 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5218
026331c4
JM		 5219 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5220 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5221 if (chan == NULL)
5222 return -EINVAL;
026331c4
JM		 5223
5224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5225 if (!msg)
5226 return -ENOMEM;
026331c4
JM		 5227
5228 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 5229 NL80211_CMD_FRAME);
026331c4
JM		 5230
5231 if (IS_ERR(hdr)) {
5232 err = PTR_ERR(hdr);
5233 goto free_msg;
5234 }
f7ca38df
JB		 5235 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5236 channel_type_valid, wait,
2e161f78
JB		 5237 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5238 nla_len(info->attrs[NL80211_ATTR_FRAME]),
5239 &cookie);
026331c4
JM		 5240 if (err)
5241 goto free_msg;
5242
5243 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5244
5245 genlmsg_end(msg, hdr);
4c476991 5246 return genlmsg_reply(msg, info);
026331c4
JM		 5247
5248 nla_put_failure:
5249 err = -ENOBUFS;
5250 free_msg:
5251 nlmsg_free(msg);
026331c4
JM		 5252 return err;
5253}
5254
f7ca38df
JB		 5255static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5256{
5257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5258 struct net_device *dev = info->user_ptr[1];
5259 u64 cookie;
5260
5261 if (!info->attrs[NL80211_ATTR_COOKIE])
5262 return -EINVAL;
5263
5264 if (!rdev->ops->mgmt_tx_cancel_wait)
5265 return -EOPNOTSUPP;
5266
5267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5270 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5273 return -EOPNOTSUPP;
5274
5275 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5276
5277 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5278}
5279
ffb9eb3d
KV		 5280static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5281{
4c476991 5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5283 struct wireless_dev *wdev;
4c476991 5284 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5285 u8 ps_state;
5286 bool state;
5287 int err;
5288
4c476991
JB		 5289 if (!info->attrs[NL80211_ATTR_PS_STATE])
5290 return -EINVAL;
ffb9eb3d
KV		 5291
5292 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5293
4c476991
JB		 5294 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5295 return -EINVAL;
ffb9eb3d
KV		 5296
5297 wdev = dev->ieee80211_ptr;
5298
4c476991
JB		 5299 if (!rdev->ops->set_power_mgmt)
5300 return -EOPNOTSUPP;
ffb9eb3d
KV		 5301
5302 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5303
5304 if (state == wdev->ps)
4c476991 5305 return 0;
ffb9eb3d 5306
4c476991
JB		 5307 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5308 wdev->ps_timeout);
5309 if (!err)
5310 wdev->ps = state;
ffb9eb3d
KV		 5311 return err;
5312}
5313
5314static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5315{
4c476991 5316 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5317 enum nl80211_ps_state ps_state;
5318 struct wireless_dev *wdev;
4c476991 5319 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5320 struct sk_buff *msg;
5321 void *hdr;
5322 int err;
5323
ffb9eb3d
KV		 5324 wdev = dev->ieee80211_ptr;
5325
4c476991
JB		 5326 if (!rdev->ops->set_power_mgmt)
5327 return -EOPNOTSUPP;
ffb9eb3d
KV		 5328
5329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5330 if (!msg)
5331 return -ENOMEM;
ffb9eb3d
KV		 5332
5333 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5334 NL80211_CMD_GET_POWER_SAVE);
5335 if (!hdr) {
4c476991 5336 err = -ENOBUFS;
ffb9eb3d
KV		 5337 goto free_msg;
5338 }
5339
5340 if (wdev->ps)
5341 ps_state = NL80211_PS_ENABLED;
5342 else
5343 ps_state = NL80211_PS_DISABLED;
5344
5345 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5346
5347 genlmsg_end(msg, hdr);
4c476991 5348 return genlmsg_reply(msg, info);
ffb9eb3d 5349
4c476991 5350 nla_put_failure:
ffb9eb3d 5351 err = -ENOBUFS;
4c476991 5352 free_msg:
ffb9eb3d 5353 nlmsg_free(msg);
ffb9eb3d
KV		 5354 return err;
5355}
5356
d6dc1a38
JO		 5357static struct nla_policy
5358nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5359 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5360 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5361 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5362};
5363
5364static int nl80211_set_cqm_rssi(struct genl_info *info,
5365 s32 threshold, u32 hysteresis)
5366{
4c476991 5367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5368 struct wireless_dev *wdev;
4c476991 5369 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5370
5371 if (threshold > 0)
5372 return -EINVAL;
5373
d6dc1a38
JO		 5374 wdev = dev->ieee80211_ptr;
5375
4c476991
JB		 5376 if (!rdev->ops->set_cqm_rssi_config)
5377 return -EOPNOTSUPP;
d6dc1a38 5378
074ac8df 5379 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5380 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5381 return -EOPNOTSUPP;
d6dc1a38 5382
4c476991
JB		 5383 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5384 threshold, hysteresis);
d6dc1a38
JO		 5385}
5386
5387static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5388{
5389 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5390 struct nlattr *cqm;
5391 int err;
5392
5393 cqm = info->attrs[NL80211_ATTR_CQM];
5394 if (!cqm) {
5395 err = -EINVAL;
5396 goto out;
5397 }
5398
5399 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5400 nl80211_attr_cqm_policy);
5401 if (err)
5402 goto out;
5403
5404 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5405 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5406 s32 threshold;
5407 u32 hysteresis;
5408 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5409 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5410 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5411 } else
5412 err = -EINVAL;
5413
5414out:
5415 return err;
5416}
5417
29cbe68c
JB		 5418static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5419{
5420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5421 struct net_device *dev = info->user_ptr[1];
5422 struct mesh_config cfg;
c80d545d 5423 struct mesh_setup setup;
29cbe68c
JB		 5424 int err;
5425
5426 /* start with default */
5427 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5428 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5429
24bdd9f4 5430 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5431 /* and parse parameters if given */
24bdd9f4 5432 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5433 if (err)
5434 return err;
5435 }
5436
5437 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5438 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5439 return -EINVAL;
5440
c80d545d
JC		 5441 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5442 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5443
5444 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5445 /* parse additional setup parameters if given */
5446 err = nl80211_parse_mesh_setup(info, &setup);
5447 if (err)
5448 return err;
5449 }
5450
5451 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5452}
5453
5454static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5455{
5456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5457 struct net_device *dev = info->user_ptr[1];
5458
5459 return cfg80211_leave_mesh(rdev, dev);
5460}
5461
ff1b6e69
JB		 5462static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5463{
5464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5465 struct sk_buff *msg;
5466 void *hdr;
5467
5468 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5469 return -EOPNOTSUPP;
5470
5471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5472 if (!msg)
5473 return -ENOMEM;
5474
5475 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5476 NL80211_CMD_GET_WOWLAN);
5477 if (!hdr)
5478 goto nla_put_failure;
5479
5480 if (rdev->wowlan) {
5481 struct nlattr *nl_wowlan;
5482
5483 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5484 if (!nl_wowlan)
5485 goto nla_put_failure;
5486
5487 if (rdev->wowlan->any)
5488 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5489 if (rdev->wowlan->disconnect)
5490 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5491 if (rdev->wowlan->magic_pkt)
5492 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5493 if (rdev->wowlan->gtk_rekey_failure)
5494 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5495 if (rdev->wowlan->eap_identity_req)
5496 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5497 if (rdev->wowlan->four_way_handshake)
5498 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5499 if (rdev->wowlan->rfkill_release)
5500 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5501 if (rdev->wowlan->n_patterns) {
5502 struct nlattr *nl_pats, *nl_pat;
5503 int i, pat_len;
5504
5505 nl_pats = nla_nest_start(msg,
5506 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5507 if (!nl_pats)
5508 goto nla_put_failure;
5509
5510 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5511 nl_pat = nla_nest_start(msg, i + 1);
5512 if (!nl_pat)
5513 goto nla_put_failure;
5514 pat_len = rdev->wowlan->patterns[i].pattern_len;
5515 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5516 DIV_ROUND_UP(pat_len, 8),
5517 rdev->wowlan->patterns[i].mask);
5518 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5519 pat_len,
5520 rdev->wowlan->patterns[i].pattern);
5521 nla_nest_end(msg, nl_pat);
5522 }
5523 nla_nest_end(msg, nl_pats);
5524 }
5525
5526 nla_nest_end(msg, nl_wowlan);
5527 }
5528
5529 genlmsg_end(msg, hdr);
5530 return genlmsg_reply(msg, info);
5531
5532nla_put_failure:
5533 nlmsg_free(msg);
5534 return -ENOBUFS;
5535}
5536
5537static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5538{
5539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5540 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5541 struct cfg80211_wowlan no_triggers = {};
5542 struct cfg80211_wowlan new_triggers = {};
5543 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5544 int err, i;
5545
5546 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5547 return -EOPNOTSUPP;
5548
5549 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5550 goto no_triggers;
5551
5552 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5553 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5554 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5555 nl80211_wowlan_policy);
5556 if (err)
5557 return err;
5558
5559 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5560 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5561 return -EINVAL;
5562 new_triggers.any = true;
5563 }
5564
5565 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5566 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5567 return -EINVAL;
5568 new_triggers.disconnect = true;
5569 }
5570
5571 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5572 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5573 return -EINVAL;
5574 new_triggers.magic_pkt = true;
5575 }
5576
77dbbb13
JB		 5577 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5578 return -EINVAL;
5579
5580 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5581 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5582 return -EINVAL;
5583 new_triggers.gtk_rekey_failure = true;
5584 }
5585
5586 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5587 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5588 return -EINVAL;
5589 new_triggers.eap_identity_req = true;
5590 }
5591
5592 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5593 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5594 return -EINVAL;
5595 new_triggers.four_way_handshake = true;
5596 }
5597
5598 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5599 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5600 return -EINVAL;
5601 new_triggers.rfkill_release = true;
5602 }
5603
ff1b6e69
JB		 5604 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5605 struct nlattr *pat;
5606 int n_patterns = 0;
5607 int rem, pat_len, mask_len;
5608 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5609
5610 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5611 rem)
5612 n_patterns++;
5613 if (n_patterns > wowlan->n_patterns)
5614 return -EINVAL;
5615
5616 new_triggers.patterns = kcalloc(n_patterns,
5617 sizeof(new_triggers.patterns[0]),
5618 GFP_KERNEL);
5619 if (!new_triggers.patterns)
5620 return -ENOMEM;
5621
5622 new_triggers.n_patterns = n_patterns;
5623 i = 0;
5624
5625 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5626 rem) {
5627 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5628 nla_data(pat), nla_len(pat), NULL);
5629 err = -EINVAL;
5630 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5631 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5632 goto error;
5633 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5634 mask_len = DIV_ROUND_UP(pat_len, 8);
5635 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5636 mask_len)
5637 goto error;
5638 if (pat_len > wowlan->pattern_max_len ||
5639 pat_len < wowlan->pattern_min_len)
5640 goto error;
5641
5642 new_triggers.patterns[i].mask =
5643 kmalloc(mask_len + pat_len, GFP_KERNEL);
5644 if (!new_triggers.patterns[i].mask) {
5645 err = -ENOMEM;
5646 goto error;
5647 }
5648 new_triggers.patterns[i].pattern =
5649 new_triggers.patterns[i].mask + mask_len;
5650 memcpy(new_triggers.patterns[i].mask,
5651 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5652 mask_len);
5653 new_triggers.patterns[i].pattern_len = pat_len;
5654 memcpy(new_triggers.patterns[i].pattern,
5655 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5656 pat_len);
5657 i++;
5658 }
5659 }
5660
5661 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5662 struct cfg80211_wowlan *ntrig;
5663 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5664 GFP_KERNEL);
5665 if (!ntrig) {
5666 err = -ENOMEM;
5667 goto error;
5668 }
5669 cfg80211_rdev_free_wowlan(rdev);
5670 rdev->wowlan = ntrig;
5671 } else {
5672 no_triggers:
5673 cfg80211_rdev_free_wowlan(rdev);
5674 rdev->wowlan = NULL;
5675 }
5676
5677 return 0;
5678 error:
5679 for (i = 0; i < new_triggers.n_patterns; i++)
5680 kfree(new_triggers.patterns[i].mask);
5681 kfree(new_triggers.patterns);
5682 return err;
5683}
5684
e5497d76
JB		 5685static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5686{
5687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5688 struct net_device *dev = info->user_ptr[1];
5689 struct wireless_dev *wdev = dev->ieee80211_ptr;
5690 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5691 struct cfg80211_gtk_rekey_data rekey_data;
5692 int err;
5693
5694 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5695 return -EINVAL;
5696
5697 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5698 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5699 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5700 nl80211_rekey_policy);
5701 if (err)
5702 return err;
5703
5704 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5705 return -ERANGE;
5706 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5707 return -ERANGE;
5708 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5709 return -ERANGE;
5710
5711 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5712 NL80211_KEK_LEN);
5713 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5714 NL80211_KCK_LEN);
5715 memcpy(rekey_data.replay_ctr,
5716 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5717 NL80211_REPLAY_CTR_LEN);
5718
5719 wdev_lock(wdev);
5720 if (!wdev->current_bss) {
5721 err = -ENOTCONN;
5722 goto out;
5723 }
5724
5725 if (!rdev->ops->set_rekey_data) {
5726 err = -EOPNOTSUPP;
5727 goto out;
5728 }
5729
5730 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5731 out:
5732 wdev_unlock(wdev);
5733 return err;
5734}
5735
4c476991
JB		 5736#define NL80211_FLAG_NEED_WIPHY 0x01
5737#define NL80211_FLAG_NEED_NETDEV 0x02
5738#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5739#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5740#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5741 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5742
5743static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5744 struct genl_info *info)
5745{
5746 struct cfg80211_registered_device *rdev;
5747 struct net_device *dev;
5748 int err;
5749 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5750
5751 if (rtnl)
5752 rtnl_lock();
5753
5754 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5755 rdev = cfg80211_get_dev_from_info(info);
5756 if (IS_ERR(rdev)) {
5757 if (rtnl)
5758 rtnl_unlock();
5759 return PTR_ERR(rdev);
5760 }
5761 info->user_ptr[0] = rdev;
5762 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5763 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5764 if (err) {
5765 if (rtnl)
5766 rtnl_unlock();
5767 return err;
5768 }
41265714
JB		 5769 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5770 !netif_running(dev)) {
d537f5fd
JB		 5771 cfg80211_unlock_rdev(rdev);
5772 dev_put(dev);
41265714
JB		 5773 if (rtnl)
5774 rtnl_unlock();
5775 return -ENETDOWN;
5776 }
4c476991
JB		 5777 info->user_ptr[0] = rdev;
5778 info->user_ptr[1] = dev;
5779 }
5780
5781 return 0;
5782}
5783
5784static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5785 struct genl_info *info)
5786{
5787 if (info->user_ptr[0])
5788 cfg80211_unlock_rdev(info->user_ptr[0]);
5789 if (info->user_ptr[1])
5790 dev_put(info->user_ptr[1]);
5791 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5792 rtnl_unlock();
5793}
5794
55682965
JB		 5795static struct genl_ops nl80211_ops[] = {
5796 {
5797 .cmd = NL80211_CMD_GET_WIPHY,
5798 .doit = nl80211_get_wiphy,
5799 .dumpit = nl80211_dump_wiphy,
5800 .policy = nl80211_policy,
5801 /* can be retrieved by unprivileged users */
4c476991 5802 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5803 },
5804 {
5805 .cmd = NL80211_CMD_SET_WIPHY,
5806 .doit = nl80211_set_wiphy,
5807 .policy = nl80211_policy,
5808 .flags = GENL_ADMIN_PERM,
4c476991 5809 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5810 },
5811 {
5812 .cmd = NL80211_CMD_GET_INTERFACE,
5813 .doit = nl80211_get_interface,
5814 .dumpit = nl80211_dump_interface,
5815 .policy = nl80211_policy,
5816 /* can be retrieved by unprivileged users */
4c476991 5817 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5818 },
5819 {
5820 .cmd = NL80211_CMD_SET_INTERFACE,
5821 .doit = nl80211_set_interface,
5822 .policy = nl80211_policy,
5823 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5825 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5826 },
5827 {
5828 .cmd = NL80211_CMD_NEW_INTERFACE,
5829 .doit = nl80211_new_interface,
5830 .policy = nl80211_policy,
5831 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5832 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5833 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5834 },
5835 {
5836 .cmd = NL80211_CMD_DEL_INTERFACE,
5837 .doit = nl80211_del_interface,
5838 .policy = nl80211_policy,
41ade00f 5839 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5841 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5842 },
5843 {
5844 .cmd = NL80211_CMD_GET_KEY,
5845 .doit = nl80211_get_key,
5846 .policy = nl80211_policy,
5847 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5848 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5849 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5850 },
5851 {
5852 .cmd = NL80211_CMD_SET_KEY,
5853 .doit = nl80211_set_key,
5854 .policy = nl80211_policy,
5855 .flags = GENL_ADMIN_PERM,
41265714 5856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5857 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5858 },
5859 {
5860 .cmd = NL80211_CMD_NEW_KEY,
5861 .doit = nl80211_new_key,
5862 .policy = nl80211_policy,
5863 .flags = GENL_ADMIN_PERM,
41265714 5864 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5865 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5866 },
5867 {
5868 .cmd = NL80211_CMD_DEL_KEY,
5869 .doit = nl80211_del_key,
5870 .policy = nl80211_policy,
55682965 5871 .flags = GENL_ADMIN_PERM,
41265714 5872 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5873 NL80211_FLAG_NEED_RTNL,
55682965 5874 },
ed1b6cc7
JB		 5875 {
5876 .cmd = NL80211_CMD_SET_BEACON,
5877 .policy = nl80211_policy,
5878 .flags = GENL_ADMIN_PERM,
5879 .doit = nl80211_addset_beacon,
4c476991
JB		 5880 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5881 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5882 },
5883 {
5884 .cmd = NL80211_CMD_NEW_BEACON,
5885 .policy = nl80211_policy,
5886 .flags = GENL_ADMIN_PERM,
5887 .doit = nl80211_addset_beacon,
4c476991
JB		 5888 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5889 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5890 },
5891 {
5892 .cmd = NL80211_CMD_DEL_BEACON,
5893 .policy = nl80211_policy,
5894 .flags = GENL_ADMIN_PERM,
5895 .doit = nl80211_del_beacon,
4c476991
JB		 5896 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5897 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 5898 },
5727ef1b
JB		 5899 {
5900 .cmd = NL80211_CMD_GET_STATION,
5901 .doit = nl80211_get_station,
2ec600d6 5902 .dumpit = nl80211_dump_station,
5727ef1b 5903 .policy = nl80211_policy,
4c476991
JB		 5904 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5905 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5906 },
5907 {
5908 .cmd = NL80211_CMD_SET_STATION,
5909 .doit = nl80211_set_station,
5910 .policy = nl80211_policy,
5911 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5912 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5913 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5914 },
5915 {
5916 .cmd = NL80211_CMD_NEW_STATION,
5917 .doit = nl80211_new_station,
5918 .policy = nl80211_policy,
5919 .flags = GENL_ADMIN_PERM,
41265714 5920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5921 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5922 },
5923 {
5924 .cmd = NL80211_CMD_DEL_STATION,
5925 .doit = nl80211_del_station,
5926 .policy = nl80211_policy,
2ec600d6 5927 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5928 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5929 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5930 },
5931 {
5932 .cmd = NL80211_CMD_GET_MPATH,
5933 .doit = nl80211_get_mpath,
5934 .dumpit = nl80211_dump_mpath,
5935 .policy = nl80211_policy,
5936 .flags = GENL_ADMIN_PERM,
41265714 5937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5938 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5939 },
5940 {
5941 .cmd = NL80211_CMD_SET_MPATH,
5942 .doit = nl80211_set_mpath,
5943 .policy = nl80211_policy,
5944 .flags = GENL_ADMIN_PERM,
41265714 5945 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5946 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5947 },
5948 {
5949 .cmd = NL80211_CMD_NEW_MPATH,
5950 .doit = nl80211_new_mpath,
5951 .policy = nl80211_policy,
5952 .flags = GENL_ADMIN_PERM,
41265714 5953 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5954 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5955 },
5956 {
5957 .cmd = NL80211_CMD_DEL_MPATH,
5958 .doit = nl80211_del_mpath,
5959 .policy = nl80211_policy,
9f1ba906 5960 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5961 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5962 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5963 },
5964 {
5965 .cmd = NL80211_CMD_SET_BSS,
5966 .doit = nl80211_set_bss,
5967 .policy = nl80211_policy,
b2e1b302 5968 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5970 NL80211_FLAG_NEED_RTNL,
b2e1b302 5971 },
f130347c
LR		 5972 {
5973 .cmd = NL80211_CMD_GET_REG,
5974 .doit = nl80211_get_reg,
5975 .policy = nl80211_policy,
5976 /* can be retrieved by unprivileged users */
5977 },
b2e1b302
LR		 5978 {
5979 .cmd = NL80211_CMD_SET_REG,
5980 .doit = nl80211_set_reg,
5981 .policy = nl80211_policy,
5982 .flags = GENL_ADMIN_PERM,
5983 },
5984 {
5985 .cmd = NL80211_CMD_REQ_SET_REG,
5986 .doit = nl80211_req_set_reg,
5987 .policy = nl80211_policy,
93da9cc1 5988 .flags = GENL_ADMIN_PERM,
5989 },
5990 {
24bdd9f4
JC		 5991 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5992 .doit = nl80211_get_mesh_config,
93da9cc1 5993 .policy = nl80211_policy,
5994 /* can be retrieved by unprivileged users */
4c476991
JB		 5995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5996 NL80211_FLAG_NEED_RTNL,
93da9cc1 5997 },
5998 {
24bdd9f4
JC		 5999 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6000 .doit = nl80211_update_mesh_config,
93da9cc1 6001 .policy = nl80211_policy,
9aed3cc1 6002 .flags = GENL_ADMIN_PERM,
29cbe68c 6003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6004 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6005 },
2a519311
JB		 6006 {
6007 .cmd = NL80211_CMD_TRIGGER_SCAN,
6008 .doit = nl80211_trigger_scan,
6009 .policy = nl80211_policy,
6010 .flags = GENL_ADMIN_PERM,
41265714 6011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6012 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6013 },
6014 {
6015 .cmd = NL80211_CMD_GET_SCAN,
6016 .policy = nl80211_policy,
6017 .dumpit = nl80211_dump_scan,
6018 },
807f8a8c
LC		 6019 {
6020 .cmd = NL80211_CMD_START_SCHED_SCAN,
6021 .doit = nl80211_start_sched_scan,
6022 .policy = nl80211_policy,
6023 .flags = GENL_ADMIN_PERM,
6024 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6025 NL80211_FLAG_NEED_RTNL,
6026 },
6027 {
6028 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6029 .doit = nl80211_stop_sched_scan,
6030 .policy = nl80211_policy,
6031 .flags = GENL_ADMIN_PERM,
6032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6033 NL80211_FLAG_NEED_RTNL,
6034 },
636a5d36
JM		 6035 {
6036 .cmd = NL80211_CMD_AUTHENTICATE,
6037 .doit = nl80211_authenticate,
6038 .policy = nl80211_policy,
6039 .flags = GENL_ADMIN_PERM,
41265714 6040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6041 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6042 },
6043 {
6044 .cmd = NL80211_CMD_ASSOCIATE,
6045 .doit = nl80211_associate,
6046 .policy = nl80211_policy,
6047 .flags = GENL_ADMIN_PERM,
41265714 6048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6049 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6050 },
6051 {
6052 .cmd = NL80211_CMD_DEAUTHENTICATE,
6053 .doit = nl80211_deauthenticate,
6054 .policy = nl80211_policy,
6055 .flags = GENL_ADMIN_PERM,
41265714 6056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6057 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6058 },
6059 {
6060 .cmd = NL80211_CMD_DISASSOCIATE,
6061 .doit = nl80211_disassociate,
6062 .policy = nl80211_policy,
6063 .flags = GENL_ADMIN_PERM,
41265714 6064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6065 NL80211_FLAG_NEED_RTNL,
636a5d36 6066 },
04a773ad
JB		 6067 {
6068 .cmd = NL80211_CMD_JOIN_IBSS,
6069 .doit = nl80211_join_ibss,
6070 .policy = nl80211_policy,
6071 .flags = GENL_ADMIN_PERM,
41265714 6072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6073 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6074 },
6075 {
6076 .cmd = NL80211_CMD_LEAVE_IBSS,
6077 .doit = nl80211_leave_ibss,
6078 .policy = nl80211_policy,
6079 .flags = GENL_ADMIN_PERM,
41265714 6080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6081 NL80211_FLAG_NEED_RTNL,
04a773ad 6082 },
aff89a9b
JB		 6083#ifdef CONFIG_NL80211_TESTMODE
6084 {
6085 .cmd = NL80211_CMD_TESTMODE,
6086 .doit = nl80211_testmode_do,
71063f0e 6087 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6088 .policy = nl80211_policy,
6089 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6090 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6091 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6092 },
6093#endif
b23aa676
SO		 6094 {
6095 .cmd = NL80211_CMD_CONNECT,
6096 .doit = nl80211_connect,
6097 .policy = nl80211_policy,
6098 .flags = GENL_ADMIN_PERM,
41265714 6099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6100 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6101 },
6102 {
6103 .cmd = NL80211_CMD_DISCONNECT,
6104 .doit = nl80211_disconnect,
6105 .policy = nl80211_policy,
6106 .flags = GENL_ADMIN_PERM,
41265714 6107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6108 NL80211_FLAG_NEED_RTNL,
b23aa676 6109 },
463d0183
JB		 6110 {
6111 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6112 .doit = nl80211_wiphy_netns,
6113 .policy = nl80211_policy,
6114 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6115 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6116 NL80211_FLAG_NEED_RTNL,
463d0183 6117 },
61fa713c
HS		 6118 {
6119 .cmd = NL80211_CMD_GET_SURVEY,
6120 .policy = nl80211_policy,
6121 .dumpit = nl80211_dump_survey,
6122 },
67fbb16b
SO		 6123 {
6124 .cmd = NL80211_CMD_SET_PMKSA,
6125 .doit = nl80211_setdel_pmksa,
6126 .policy = nl80211_policy,
6127 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6128 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6129 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6130 },
6131 {
6132 .cmd = NL80211_CMD_DEL_PMKSA,
6133 .doit = nl80211_setdel_pmksa,
6134 .policy = nl80211_policy,
6135 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6136 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6137 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6138 },
6139 {
6140 .cmd = NL80211_CMD_FLUSH_PMKSA,
6141 .doit = nl80211_flush_pmksa,
6142 .policy = nl80211_policy,
6143 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6144 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6145 NL80211_FLAG_NEED_RTNL,
67fbb16b 6146 },
9588bbd5
JM		 6147 {
6148 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6149 .doit = nl80211_remain_on_channel,
6150 .policy = nl80211_policy,
6151 .flags = GENL_ADMIN_PERM,
41265714 6152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6153 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6154 },
6155 {
6156 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6157 .doit = nl80211_cancel_remain_on_channel,
6158 .policy = nl80211_policy,
6159 .flags = GENL_ADMIN_PERM,
41265714 6160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6161 NL80211_FLAG_NEED_RTNL,
9588bbd5 6162 },
13ae75b1
JM		 6163 {
6164 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6165 .doit = nl80211_set_tx_bitrate_mask,
6166 .policy = nl80211_policy,
6167 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6168 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6169 NL80211_FLAG_NEED_RTNL,
13ae75b1 6170 },
026331c4 6171 {
2e161f78
JB		 6172 .cmd = NL80211_CMD_REGISTER_FRAME,
6173 .doit = nl80211_register_mgmt,
026331c4
JM		 6174 .policy = nl80211_policy,
6175 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6176 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6177 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6178 },
6179 {
2e161f78
JB		 6180 .cmd = NL80211_CMD_FRAME,
6181 .doit = nl80211_tx_mgmt,
026331c4 6182 .policy = nl80211_policy,
f7ca38df
JB		 6183 .flags = GENL_ADMIN_PERM,
6184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6185 NL80211_FLAG_NEED_RTNL,
6186 },
6187 {
6188 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6189 .doit = nl80211_tx_mgmt_cancel_wait,
6190 .policy = nl80211_policy,
026331c4 6191 .flags = GENL_ADMIN_PERM,
41265714 6192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6193 NL80211_FLAG_NEED_RTNL,
026331c4 6194 },
ffb9eb3d
KV		 6195 {
6196 .cmd = NL80211_CMD_SET_POWER_SAVE,
6197 .doit = nl80211_set_power_save,
6198 .policy = nl80211_policy,
6199 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6200 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6201 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6202 },
6203 {
6204 .cmd = NL80211_CMD_GET_POWER_SAVE,
6205 .doit = nl80211_get_power_save,
6206 .policy = nl80211_policy,
6207 /* can be retrieved by unprivileged users */
4c476991
JB		 6208 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6209 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6210 },
d6dc1a38
JO		 6211 {
6212 .cmd = NL80211_CMD_SET_CQM,
6213 .doit = nl80211_set_cqm,
6214 .policy = nl80211_policy,
6215 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6216 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6217 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6218 },
f444de05
JB		 6219 {
6220 .cmd = NL80211_CMD_SET_CHANNEL,
6221 .doit = nl80211_set_channel,
6222 .policy = nl80211_policy,
6223 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6224 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6225 NL80211_FLAG_NEED_RTNL,
f444de05 6226 },
e8347eba
BJ		 6227 {
6228 .cmd = NL80211_CMD_SET_WDS_PEER,
6229 .doit = nl80211_set_wds_peer,
6230 .policy = nl80211_policy,
6231 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6232 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6233 NL80211_FLAG_NEED_RTNL,
e8347eba 6234 },
29cbe68c
JB		 6235 {
6236 .cmd = NL80211_CMD_JOIN_MESH,
6237 .doit = nl80211_join_mesh,
6238 .policy = nl80211_policy,
6239 .flags = GENL_ADMIN_PERM,
6240 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6241 NL80211_FLAG_NEED_RTNL,
6242 },
6243 {
6244 .cmd = NL80211_CMD_LEAVE_MESH,
6245 .doit = nl80211_leave_mesh,
6246 .policy = nl80211_policy,
6247 .flags = GENL_ADMIN_PERM,
6248 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6249 NL80211_FLAG_NEED_RTNL,
6250 },
ff1b6e69
JB		 6251 {
6252 .cmd = NL80211_CMD_GET_WOWLAN,
6253 .doit = nl80211_get_wowlan,
6254 .policy = nl80211_policy,
6255 /* can be retrieved by unprivileged users */
6256 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6257 NL80211_FLAG_NEED_RTNL,
6258 },
6259 {
6260 .cmd = NL80211_CMD_SET_WOWLAN,
6261 .doit = nl80211_set_wowlan,
6262 .policy = nl80211_policy,
6263 .flags = GENL_ADMIN_PERM,
6264 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6265 NL80211_FLAG_NEED_RTNL,
6266 },
e5497d76
JB		 6267 {
6268 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6269 .doit = nl80211_set_rekey_data,
6270 .policy = nl80211_policy,
6271 .flags = GENL_ADMIN_PERM,
6272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6273 NL80211_FLAG_NEED_RTNL,
6274 },
55682965 6275};
9588bbd5 6276
6039f6d2
JM		 6277static struct genl_multicast_group nl80211_mlme_mcgrp = {
6278 .name = "mlme",
6279};
55682965
JB		 6280
6281/* multicast groups */
6282static struct genl_multicast_group nl80211_config_mcgrp = {
6283 .name = "config",
6284};
2a519311
JB		 6285static struct genl_multicast_group nl80211_scan_mcgrp = {
6286 .name = "scan",
6287};
73d54c9e
LR		 6288static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6289 .name = "regulatory",
6290};
55682965
JB		 6291
6292/* notification functions */
6293
6294void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6295{
6296 struct sk_buff *msg;
6297
fd2120ca 6298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6299 if (!msg)
6300 return;
6301
6302 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6303 nlmsg_free(msg);
6304 return;
6305 }
6306
463d0183
JB		 6307 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6308 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6309}
6310
362a415d
JB		 6311static int nl80211_add_scan_req(struct sk_buff *msg,
6312 struct cfg80211_registered_device *rdev)
6313{
6314 struct cfg80211_scan_request *req = rdev->scan_req;
6315 struct nlattr *nest;
6316 int i;
6317
667503dd
JB		 6318 ASSERT_RDEV_LOCK(rdev);
6319
362a415d
JB		 6320 if (WARN_ON(!req))
6321 return 0;
6322
6323 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6324 if (!nest)
6325 goto nla_put_failure;
6326 for (i = 0; i < req->n_ssids; i++)
6327 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6328 nla_nest_end(msg, nest);
6329
6330 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6331 if (!nest)
6332 goto nla_put_failure;
6333 for (i = 0; i < req->n_channels; i++)
6334 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6335 nla_nest_end(msg, nest);
6336
6337 if (req->ie)
6338 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6339
6340 return 0;
6341 nla_put_failure:
6342 return -ENOBUFS;
6343}
6344
a538e2d5
JB		 6345static int nl80211_send_scan_msg(struct sk_buff *msg,
6346 struct cfg80211_registered_device *rdev,
6347 struct net_device *netdev,
6348 u32 pid, u32 seq, int flags,
6349 u32 cmd)
2a519311
JB		 6350{
6351 void *hdr;
6352
6353 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6354 if (!hdr)
6355 return -1;
6356
b5850a7a 6357 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6358 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6359
362a415d
JB		 6360 /* ignore errors and send incomplete event anyway */
6361 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6362
6363 return genlmsg_end(msg, hdr);
6364
6365 nla_put_failure:
6366 genlmsg_cancel(msg, hdr);
6367 return -EMSGSIZE;
6368}
6369
807f8a8c
LC		 6370static int
6371nl80211_send_sched_scan_msg(struct sk_buff *msg,
6372 struct cfg80211_registered_device *rdev,
6373 struct net_device *netdev,
6374 u32 pid, u32 seq, int flags, u32 cmd)
6375{
6376 void *hdr;
6377
6378 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6379 if (!hdr)
6380 return -1;
6381
6382 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6383 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6384
6385 return genlmsg_end(msg, hdr);
6386
6387 nla_put_failure:
6388 genlmsg_cancel(msg, hdr);
6389 return -EMSGSIZE;
6390}
6391
a538e2d5
JB		 6392void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6393 struct net_device *netdev)
6394{
6395 struct sk_buff *msg;
6396
6397 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6398 if (!msg)
6399 return;
6400
6401 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6402 NL80211_CMD_TRIGGER_SCAN) < 0) {
6403 nlmsg_free(msg);
6404 return;
6405 }
6406
463d0183
JB		 6407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6408 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6409}
6410
2a519311
JB		 6411void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6412 struct net_device *netdev)
6413{
6414 struct sk_buff *msg;
6415
fd2120ca 6416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6417 if (!msg)
6418 return;
6419
a538e2d5
JB		 6420 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6421 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6422 nlmsg_free(msg);
6423 return;
6424 }
6425
463d0183
JB		 6426 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6427 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6428}
6429
6430void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6431 struct net_device *netdev)
6432{
6433 struct sk_buff *msg;
6434
fd2120ca 6435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6436 if (!msg)
6437 return;
6438
a538e2d5
JB		 6439 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6440 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6441 nlmsg_free(msg);
6442 return;
6443 }
6444
463d0183
JB		 6445 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6446 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6447}
6448
807f8a8c
LC		 6449void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6450 struct net_device *netdev)
6451{
6452 struct sk_buff *msg;
6453
6454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6455 if (!msg)
6456 return;
6457
6458 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6459 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6460 nlmsg_free(msg);
6461 return;
6462 }
6463
6464 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6465 nl80211_scan_mcgrp.id, GFP_KERNEL);
6466}
6467
6468void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6469 struct net_device *netdev, u32 cmd)
6470{
6471 struct sk_buff *msg;
6472
6473 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6474 if (!msg)
6475 return;
6476
6477 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6478 nlmsg_free(msg);
6479 return;
6480 }
6481
6482 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6483 nl80211_scan_mcgrp.id, GFP_KERNEL);
6484}
6485
73d54c9e
LR		 6486/*
6487 * This can happen on global regulatory changes or device specific settings
6488 * based on custom world regulatory domains.
6489 */
6490void nl80211_send_reg_change_event(struct regulatory_request *request)
6491{
6492 struct sk_buff *msg;
6493 void *hdr;
6494
fd2120ca 6495 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6496 if (!msg)
6497 return;
6498
6499 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6500 if (!hdr) {
6501 nlmsg_free(msg);
6502 return;
6503 }
6504
6505 /* Userspace can always count this one always being set */
6506 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6507
6508 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6509 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6510 NL80211_REGDOM_TYPE_WORLD);
6511 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6512 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6513 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6514 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6515 request->intersect)
6516 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6517 NL80211_REGDOM_TYPE_INTERSECTION);
6518 else {
6519 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6520 NL80211_REGDOM_TYPE_COUNTRY);
6521 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6522 }
6523
6524 if (wiphy_idx_valid(request->wiphy_idx))
6525 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6526
6527 if (genlmsg_end(msg, hdr) < 0) {
6528 nlmsg_free(msg);
6529 return;
6530 }
6531
bc43b28c 6532 rcu_read_lock();
463d0183 6533 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6534 GFP_ATOMIC);
6535 rcu_read_unlock();
73d54c9e
LR		 6536
6537 return;
6538
6539nla_put_failure:
6540 genlmsg_cancel(msg, hdr);
6541 nlmsg_free(msg);
6542}
6543
6039f6d2
JM		 6544static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6545 struct net_device *netdev,
6546 const u8 *buf, size_t len,
e6d6e342 6547 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6548{
6549 struct sk_buff *msg;
6550 void *hdr;
6551
e6d6e342 6552 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6553 if (!msg)
6554 return;
6555
6556 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6557 if (!hdr) {
6558 nlmsg_free(msg);
6559 return;
6560 }
6561
6562 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6563 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6564 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6565
6566 if (genlmsg_end(msg, hdr) < 0) {
6567 nlmsg_free(msg);
6568 return;
6569 }
6570
463d0183
JB		 6571 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6572 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6573 return;
6574
6575 nla_put_failure:
6576 genlmsg_cancel(msg, hdr);
6577 nlmsg_free(msg);
6578}
6579
6580void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6581 struct net_device *netdev, const u8 *buf,
6582 size_t len, gfp_t gfp)
6039f6d2
JM		 6583{
6584 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6585 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6586}
6587
6588void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6589 struct net_device *netdev, const u8 *buf,
e6d6e342 6590 size_t len, gfp_t gfp)
6039f6d2 6591{
e6d6e342
JB		 6592 nl80211_send_mlme_event(rdev, netdev, buf, len,
6593 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6594}
6595
53b46b84 6596void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6597 struct net_device *netdev, const u8 *buf,
6598 size_t len, gfp_t gfp)
6039f6d2
JM		 6599{
6600 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6601 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6602}
6603
53b46b84
JM		 6604void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6605 struct net_device *netdev, const u8 *buf,
e6d6e342 6606 size_t len, gfp_t gfp)
6039f6d2
JM		 6607{
6608 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6609 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6610}
6611
cf4e594e
JM		 6612void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6613 struct net_device *netdev, const u8 *buf,
6614 size_t len, gfp_t gfp)
6615{
6616 nl80211_send_mlme_event(rdev, netdev, buf, len,
6617 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6618}
6619
6620void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6621 struct net_device *netdev, const u8 *buf,
6622 size_t len, gfp_t gfp)
6623{
6624 nl80211_send_mlme_event(rdev, netdev, buf, len,
6625 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6626}
6627
1b06bb40
LR		 6628static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6629 struct net_device *netdev, int cmd,
e6d6e342 6630 const u8 *addr, gfp_t gfp)
1965c853
JM		 6631{
6632 struct sk_buff *msg;
6633 void *hdr;
6634
e6d6e342 6635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6636 if (!msg)
6637 return;
6638
6639 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6640 if (!hdr) {
6641 nlmsg_free(msg);
6642 return;
6643 }
6644
6645 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6646 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6647 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6648 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6649
6650 if (genlmsg_end(msg, hdr) < 0) {
6651 nlmsg_free(msg);
6652 return;
6653 }
6654
463d0183
JB		 6655 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6656 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6657 return;
6658
6659 nla_put_failure:
6660 genlmsg_cancel(msg, hdr);
6661 nlmsg_free(msg);
6662}
6663
6664void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6665 struct net_device *netdev, const u8 *addr,
6666 gfp_t gfp)
1965c853
JM		 6667{
6668 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6669 addr, gfp);
1965c853
JM		 6670}
6671
6672void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6673 struct net_device *netdev, const u8 *addr,
6674 gfp_t gfp)
1965c853 6675{
e6d6e342
JB		 6676 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6677 addr, gfp);
1965c853
JM		 6678}
6679
b23aa676
SO		 6680void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6681 struct net_device *netdev, const u8 *bssid,
6682 const u8 *req_ie, size_t req_ie_len,
6683 const u8 *resp_ie, size_t resp_ie_len,
6684 u16 status, gfp_t gfp)
6685{
6686 struct sk_buff *msg;
6687 void *hdr;
6688
6689 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6690 if (!msg)
6691 return;
6692
6693 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6694 if (!hdr) {
6695 nlmsg_free(msg);
6696 return;
6697 }
6698
6699 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6700 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6701 if (bssid)
6702 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6703 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6704 if (req_ie)
6705 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6706 if (resp_ie)
6707 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6708
6709 if (genlmsg_end(msg, hdr) < 0) {
6710 nlmsg_free(msg);
6711 return;
6712 }
6713
463d0183
JB		 6714 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6715 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6716 return;
6717
6718 nla_put_failure:
6719 genlmsg_cancel(msg, hdr);
6720 nlmsg_free(msg);
6721
6722}
6723
6724void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6725 struct net_device *netdev, const u8 *bssid,
6726 const u8 *req_ie, size_t req_ie_len,
6727 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6728{
6729 struct sk_buff *msg;
6730 void *hdr;
6731
6732 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6733 if (!msg)
6734 return;
6735
6736 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6737 if (!hdr) {
6738 nlmsg_free(msg);
6739 return;
6740 }
6741
6742 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6743 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6744 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6745 if (req_ie)
6746 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6747 if (resp_ie)
6748 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6749
6750 if (genlmsg_end(msg, hdr) < 0) {
6751 nlmsg_free(msg);
6752 return;
6753 }
6754
463d0183
JB		 6755 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6756 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6757 return;
6758
6759 nla_put_failure:
6760 genlmsg_cancel(msg, hdr);
6761 nlmsg_free(msg);
6762
6763}
6764
6765void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6766 struct net_device *netdev, u16 reason,
667503dd 6767 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6768{
6769 struct sk_buff *msg;
6770 void *hdr;
6771
667503dd 6772 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6773 if (!msg)
6774 return;
6775
6776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6777 if (!hdr) {
6778 nlmsg_free(msg);
6779 return;
6780 }
6781
6782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6783 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6784 if (from_ap && reason)
6785 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6786 if (from_ap)
6787 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6788 if (ie)
6789 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6790
6791 if (genlmsg_end(msg, hdr) < 0) {
6792 nlmsg_free(msg);
6793 return;
6794 }
6795
463d0183
JB		 6796 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6797 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6798 return;
6799
6800 nla_put_failure:
6801 genlmsg_cancel(msg, hdr);
6802 nlmsg_free(msg);
6803
6804}
6805
04a773ad
JB		 6806void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6807 struct net_device *netdev, const u8 *bssid,
6808 gfp_t gfp)
6809{
6810 struct sk_buff *msg;
6811 void *hdr;
6812
fd2120ca 6813 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6814 if (!msg)
6815 return;
6816
6817 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6818 if (!hdr) {
6819 nlmsg_free(msg);
6820 return;
6821 }
6822
6823 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6824 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6825 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6826
6827 if (genlmsg_end(msg, hdr) < 0) {
6828 nlmsg_free(msg);
6829 return;
6830 }
6831
463d0183
JB		 6832 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6833 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6834 return;
6835
6836 nla_put_failure:
6837 genlmsg_cancel(msg, hdr);
6838 nlmsg_free(msg);
6839}
6840
c93b5e71
JC		 6841void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6842 struct net_device *netdev,
6843 const u8 *macaddr, const u8* ie, u8 ie_len,
6844 gfp_t gfp)
6845{
6846 struct sk_buff *msg;
6847 void *hdr;
6848
6849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6850 if (!msg)
6851 return;
6852
6853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6854 if (!hdr) {
6855 nlmsg_free(msg);
6856 return;
6857 }
6858
6859 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6860 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6861 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6862 if (ie_len && ie)
6863 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6864
6865 if (genlmsg_end(msg, hdr) < 0) {
6866 nlmsg_free(msg);
6867 return;
6868 }
6869
6870 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6871 nl80211_mlme_mcgrp.id, gfp);
6872 return;
6873
6874 nla_put_failure:
6875 genlmsg_cancel(msg, hdr);
6876 nlmsg_free(msg);
6877}
6878
a3b8b056
JM		 6879void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6880 struct net_device *netdev, const u8 *addr,
6881 enum nl80211_key_type key_type, int key_id,
e6d6e342 6882 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 6883{
6884 struct sk_buff *msg;
6885 void *hdr;
6886
e6d6e342 6887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 6888 if (!msg)
6889 return;
6890
6891 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6892 if (!hdr) {
6893 nlmsg_free(msg);
6894 return;
6895 }
6896
6897 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6898 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6899 if (addr)
6900 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6901 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 6902 if (key_id != -1)
6903 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 6904 if (tsc)
6905 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6906
6907 if (genlmsg_end(msg, hdr) < 0) {
6908 nlmsg_free(msg);
6909 return;
6910 }
6911
463d0183
JB		 6912 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6913 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 6914 return;
6915
6916 nla_put_failure:
6917 genlmsg_cancel(msg, hdr);
6918 nlmsg_free(msg);
6919}
6920
6bad8766
LR		 6921void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6922 struct ieee80211_channel *channel_before,
6923 struct ieee80211_channel *channel_after)
6924{
6925 struct sk_buff *msg;
6926 void *hdr;
6927 struct nlattr *nl_freq;
6928
fd2120ca 6929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 6930 if (!msg)
6931 return;
6932
6933 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6934 if (!hdr) {
6935 nlmsg_free(msg);
6936 return;
6937 }
6938
6939 /*
6940 * Since we are applying the beacon hint to a wiphy we know its
6941 * wiphy_idx is valid
6942 */
6943 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6944
6945 /* Before */
6946 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6947 if (!nl_freq)
6948 goto nla_put_failure;
6949 if (nl80211_msg_put_channel(msg, channel_before))
6950 goto nla_put_failure;
6951 nla_nest_end(msg, nl_freq);
6952
6953 /* After */
6954 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6955 if (!nl_freq)
6956 goto nla_put_failure;
6957 if (nl80211_msg_put_channel(msg, channel_after))
6958 goto nla_put_failure;
6959 nla_nest_end(msg, nl_freq);
6960
6961 if (genlmsg_end(msg, hdr) < 0) {
6962 nlmsg_free(msg);
6963 return;
6964 }
6965
463d0183
JB		 6966 rcu_read_lock();
6967 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6968 GFP_ATOMIC);
6969 rcu_read_unlock();
6bad8766
LR		 6970
6971 return;
6972
6973nla_put_failure:
6974 genlmsg_cancel(msg, hdr);
6975 nlmsg_free(msg);
6976}
6977
9588bbd5
JM		 6978static void nl80211_send_remain_on_chan_event(
6979 int cmd, struct cfg80211_registered_device *rdev,
6980 struct net_device *netdev, u64 cookie,
6981 struct ieee80211_channel *chan,
6982 enum nl80211_channel_type channel_type,
6983 unsigned int duration, gfp_t gfp)
6984{
6985 struct sk_buff *msg;
6986 void *hdr;
6987
6988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6989 if (!msg)
6990 return;
6991
6992 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6993 if (!hdr) {
6994 nlmsg_free(msg);
6995 return;
6996 }
6997
6998 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6999 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7000 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7001 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7002 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7003
7004 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7005 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7006
7007 if (genlmsg_end(msg, hdr) < 0) {
7008 nlmsg_free(msg);
7009 return;
7010 }
7011
7012 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7013 nl80211_mlme_mcgrp.id, gfp);
7014 return;
7015
7016 nla_put_failure:
7017 genlmsg_cancel(msg, hdr);
7018 nlmsg_free(msg);
7019}
7020
7021void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7022 struct net_device *netdev, u64 cookie,
7023 struct ieee80211_channel *chan,
7024 enum nl80211_channel_type channel_type,
7025 unsigned int duration, gfp_t gfp)
7026{
7027 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7028 rdev, netdev, cookie, chan,
7029 channel_type, duration, gfp);
7030}
7031
7032void nl80211_send_remain_on_channel_cancel(
7033 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7034 u64 cookie, struct ieee80211_channel *chan,
7035 enum nl80211_channel_type channel_type, gfp_t gfp)
7036{
7037 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7038 rdev, netdev, cookie, chan,
7039 channel_type, 0, gfp);
7040}
7041
98b62183
JB		 7042void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7043 struct net_device *dev, const u8 *mac_addr,
7044 struct station_info *sinfo, gfp_t gfp)
7045{
7046 struct sk_buff *msg;
7047
7048 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7049 if (!msg)
7050 return;
7051
7052 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7053 nlmsg_free(msg);
7054 return;
7055 }
7056
7057 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7058 nl80211_mlme_mcgrp.id, gfp);
7059}
7060
ec15e68b
JM		 7061void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7062 struct net_device *dev, const u8 *mac_addr,
7063 gfp_t gfp)
7064{
7065 struct sk_buff *msg;
7066 void *hdr;
7067
7068 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7069 if (!msg)
7070 return;
7071
7072 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7073 if (!hdr) {
7074 nlmsg_free(msg);
7075 return;
7076 }
7077
7078 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7079 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7080
7081 if (genlmsg_end(msg, hdr) < 0) {
7082 nlmsg_free(msg);
7083 return;
7084 }
7085
7086 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7087 nl80211_mlme_mcgrp.id, gfp);
7088 return;
7089
7090 nla_put_failure:
7091 genlmsg_cancel(msg, hdr);
7092 nlmsg_free(msg);
7093}
7094
2e161f78
JB		 7095int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7096 struct net_device *netdev, u32 nlpid,
7097 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7098{
7099 struct sk_buff *msg;
7100 void *hdr;
7101 int err;
7102
7103 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7104 if (!msg)
7105 return -ENOMEM;
7106
2e161f78 7107 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7108 if (!hdr) {
7109 nlmsg_free(msg);
7110 return -ENOMEM;
7111 }
7112
7113 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7114 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7115 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7116 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7117
7118 err = genlmsg_end(msg, hdr);
7119 if (err < 0) {
7120 nlmsg_free(msg);
7121 return err;
7122 }
7123
7124 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7125 if (err < 0)
7126 return err;
7127 return 0;
7128
7129 nla_put_failure:
7130 genlmsg_cancel(msg, hdr);
7131 nlmsg_free(msg);
7132 return -ENOBUFS;
7133}
7134
2e161f78
JB		 7135void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7136 struct net_device *netdev, u64 cookie,
7137 const u8 *buf, size_t len, bool ack,
7138 gfp_t gfp)
026331c4
JM		 7139{
7140 struct sk_buff *msg;
7141 void *hdr;
7142
7143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7144 if (!msg)
7145 return;
7146
2e161f78 7147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7148 if (!hdr) {
7149 nlmsg_free(msg);
7150 return;
7151 }
7152
7153 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7154 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7155 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7156 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7157 if (ack)
7158 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7159
7160 if (genlmsg_end(msg, hdr) < 0) {
7161 nlmsg_free(msg);
7162 return;
7163 }
7164
7165 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7166 return;
7167
7168 nla_put_failure:
7169 genlmsg_cancel(msg, hdr);
7170 nlmsg_free(msg);
7171}
7172
d6dc1a38
JO		 7173void
7174nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7175 struct net_device *netdev,
7176 enum nl80211_cqm_rssi_threshold_event rssi_event,
7177 gfp_t gfp)
7178{
7179 struct sk_buff *msg;
7180 struct nlattr *pinfoattr;
7181 void *hdr;
7182
7183 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7184 if (!msg)
7185 return;
7186
7187 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7188 if (!hdr) {
7189 nlmsg_free(msg);
7190 return;
7191 }
7192
7193 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7194 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7195
7196 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7197 if (!pinfoattr)
7198 goto nla_put_failure;
7199
7200 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7201 rssi_event);
7202
7203 nla_nest_end(msg, pinfoattr);
7204
7205 if (genlmsg_end(msg, hdr) < 0) {
7206 nlmsg_free(msg);
7207 return;
7208 }
7209
7210 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7211 nl80211_mlme_mcgrp.id, gfp);
7212 return;
7213
7214 nla_put_failure:
7215 genlmsg_cancel(msg, hdr);
7216 nlmsg_free(msg);
7217}
7218
e5497d76
JB		 7219void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7220 struct net_device *netdev, const u8 *bssid,
7221 const u8 *replay_ctr, gfp_t gfp)
7222{
7223 struct sk_buff *msg;
7224 struct nlattr *rekey_attr;
7225 void *hdr;
7226
7227 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7228 if (!msg)
7229 return;
7230
7231 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7232 if (!hdr) {
7233 nlmsg_free(msg);
7234 return;
7235 }
7236
7237 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7238 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7239 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7240
7241 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7242 if (!rekey_attr)
7243 goto nla_put_failure;
7244
7245 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7246 NL80211_REPLAY_CTR_LEN, replay_ctr);
7247
7248 nla_nest_end(msg, rekey_attr);
7249
7250 if (genlmsg_end(msg, hdr) < 0) {
7251 nlmsg_free(msg);
7252 return;
7253 }
7254
7255 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7256 nl80211_mlme_mcgrp.id, gfp);
7257 return;
7258
7259 nla_put_failure:
7260 genlmsg_cancel(msg, hdr);
7261 nlmsg_free(msg);
7262}
7263
c063dbf5
JB		 7264void
7265nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7266 struct net_device *netdev, const u8 *peer,
7267 u32 num_packets, gfp_t gfp)
7268{
7269 struct sk_buff *msg;
7270 struct nlattr *pinfoattr;
7271 void *hdr;
7272
7273 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7274 if (!msg)
7275 return;
7276
7277 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7278 if (!hdr) {
7279 nlmsg_free(msg);
7280 return;
7281 }
7282
7283 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7284 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7285 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7286
7287 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7288 if (!pinfoattr)
7289 goto nla_put_failure;
7290
7291 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7292
7293 nla_nest_end(msg, pinfoattr);
7294
7295 if (genlmsg_end(msg, hdr) < 0) {
7296 nlmsg_free(msg);
7297 return;
7298 }
7299
7300 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7301 nl80211_mlme_mcgrp.id, gfp);
7302 return;
7303
7304 nla_put_failure:
7305 genlmsg_cancel(msg, hdr);
7306 nlmsg_free(msg);
7307}
7308
026331c4
JM		 7309static int nl80211_netlink_notify(struct notifier_block * nb,
7310 unsigned long state,
7311 void *_notify)
7312{
7313 struct netlink_notify *notify = _notify;
7314 struct cfg80211_registered_device *rdev;
7315 struct wireless_dev *wdev;
7316
7317 if (state != NETLINK_URELEASE)
7318 return NOTIFY_DONE;
7319
7320 rcu_read_lock();
7321
7322 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7323 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7324 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 7325
7326 rcu_read_unlock();
7327
7328 return NOTIFY_DONE;
7329}
7330
7331static struct notifier_block nl80211_netlink_notifier = {
7332 .notifier_call = nl80211_netlink_notify,
7333};
7334
55682965
JB		 7335/* initialisation/exit functions */
7336
7337int nl80211_init(void)
7338{
0d63cbb5 7339 int err;
55682965 7340
0d63cbb5
MM		 7341 err = genl_register_family_with_ops(&nl80211_fam,
7342 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7343 if (err)
7344 return err;
7345
55682965
JB		 7346 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7347 if (err)
7348 goto err_out;
7349
2a519311
JB		 7350 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7351 if (err)
7352 goto err_out;
7353
73d54c9e
LR		 7354 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7355 if (err)
7356 goto err_out;
7357
6039f6d2
JM		 7358 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7359 if (err)
7360 goto err_out;
7361
aff89a9b
JB		 7362#ifdef CONFIG_NL80211_TESTMODE
7363 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7364 if (err)
7365 goto err_out;
7366#endif
7367
026331c4
JM		 7368 err = netlink_register_notifier(&nl80211_netlink_notifier);
7369 if (err)
7370 goto err_out;
7371
55682965
JB		 7372 return 0;
7373 err_out:
7374 genl_unregister_family(&nl80211_fam);
7375 return err;
7376}
7377
7378void nl80211_exit(void)
7379{
026331c4 7380 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7381 genl_unregister_family(&nl80211_fam);
7382}
Linux kernel - Deliverables
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