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rtlwifi: Remove unused _usb_nbytes_read_write and _usb_writeN_sync
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
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 },
e9f935e3 194 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
55682965
JB		 195};
196
e31b8213 197/* policy for the key attributes */
b54452b0 198static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 199 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 200 [NL80211_KEY_IDX] = { .type = NLA_U8 },
201 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
202 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
203 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
204 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 205 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 206 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
207};
208
209/* policy for the key default flags */
210static const struct nla_policy
211nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
212 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
213 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 214};
215
ff1b6e69
JB		 216/* policy for WoWLAN attributes */
217static const struct nla_policy
218nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
219 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
220 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
221 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
222 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 223 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
226 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 227};
228
e5497d76
JB		 229/* policy for GTK rekey offload attributes */
230static const struct nla_policy
231nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
232 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
233 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
234 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
235};
236
a1f1c21c
LC		 237static const struct nla_policy
238nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
239 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
240 .len = IEEE80211_MAX_SSID_LEN },
241};
242
a043897a
HS		 243/* ifidx get helper */
244static int nl80211_get_ifidx(struct netlink_callback *cb)
245{
246 int res;
247
248 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
249 nl80211_fam.attrbuf, nl80211_fam.maxattr,
250 nl80211_policy);
251 if (res)
252 return res;
253
254 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
255 return -EINVAL;
256
257 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
258 if (!res)
259 return -EINVAL;
260 return res;
261}
262
67748893
JB		 263static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
264 struct netlink_callback *cb,
265 struct cfg80211_registered_device **rdev,
266 struct net_device **dev)
267{
268 int ifidx = cb->args[0];
269 int err;
270
271 if (!ifidx)
272 ifidx = nl80211_get_ifidx(cb);
273 if (ifidx < 0)
274 return ifidx;
275
276 cb->args[0] = ifidx;
277
278 rtnl_lock();
279
280 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
281 if (!*dev) {
282 err = -ENODEV;
283 goto out_rtnl;
284 }
285
286 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 287 if (IS_ERR(*rdev)) {
288 err = PTR_ERR(*rdev);
67748893
JB		 289 goto out_rtnl;
290 }
291
292 return 0;
293 out_rtnl:
294 rtnl_unlock();
295 return err;
296}
297
298static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
299{
300 cfg80211_unlock_rdev(rdev);
301 rtnl_unlock();
302}
303
f4a11bb0
JB		 304/* IE validation */
305static bool is_valid_ie_attr(const struct nlattr *attr)
306{
307 const u8 *pos;
308 int len;
309
310 if (!attr)
311 return true;
312
313 pos = nla_data(attr);
314 len = nla_len(attr);
315
316 while (len) {
317 u8 elemlen;
318
319 if (len < 2)
320 return false;
321 len -= 2;
322
323 elemlen = pos[1];
324 if (elemlen > len)
325 return false;
326
327 len -= elemlen;
328 pos += 2 + elemlen;
329 }
330
331 return true;
332}
333
55682965
JB		 334/* message building helper */
335static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
336 int flags, u8 cmd)
337{
338 /* since there is no private header just add the generic one */
339 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
340}
341
5dab3b8a
LR		 342static int nl80211_msg_put_channel(struct sk_buff *msg,
343 struct ieee80211_channel *chan)
344{
345 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
346 chan->center_freq);
347
348 if (chan->flags & IEEE80211_CHAN_DISABLED)
349 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
350 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
351 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
352 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
353 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
354 if (chan->flags & IEEE80211_CHAN_RADAR)
355 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
356
357 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
358 DBM_TO_MBM(chan->max_power));
359
360 return 0;
361
362 nla_put_failure:
363 return -ENOBUFS;
364}
365
55682965
JB		 366/* netlink command implementations */
367
b9454e83
JB		 368struct key_parse {
369 struct key_params p;
370 int idx;
e31b8213 371 int type;
b9454e83 372 bool def, defmgmt;
dbd2fd65 373 bool def_uni, def_multi;
b9454e83
JB		 374};
375
376static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
377{
378 struct nlattr *tb[NL80211_KEY_MAX + 1];
379 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
380 nl80211_key_policy);
381 if (err)
382 return err;
383
384 k->def = !!tb[NL80211_KEY_DEFAULT];
385 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
386
dbd2fd65
JB		 387 if (k->def) {
388 k->def_uni = true;
389 k->def_multi = true;
390 }
391 if (k->defmgmt)
392 k->def_multi = true;
393
b9454e83
JB		 394 if (tb[NL80211_KEY_IDX])
395 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
396
397 if (tb[NL80211_KEY_DATA]) {
398 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
399 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
400 }
401
402 if (tb[NL80211_KEY_SEQ]) {
403 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
404 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
405 }
406
407 if (tb[NL80211_KEY_CIPHER])
408 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
409
e31b8213
JB		 410 if (tb[NL80211_KEY_TYPE]) {
411 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
412 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
413 return -EINVAL;
414 }
415
dbd2fd65
JB		 416 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
417 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
418 int err = nla_parse_nested(kdt,
419 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
420 tb[NL80211_KEY_DEFAULT_TYPES],
421 nl80211_key_default_policy);
422 if (err)
423 return err;
424
425 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
426 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
427 }
428
b9454e83
JB		 429 return 0;
430}
431
432static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
433{
434 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
435 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
436 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
437 }
438
439 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
440 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
441 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
442 }
443
444 if (info->attrs[NL80211_ATTR_KEY_IDX])
445 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
446
447 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
448 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
449
450 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
451 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
452
dbd2fd65
JB		 453 if (k->def) {
454 k->def_uni = true;
455 k->def_multi = true;
456 }
457 if (k->defmgmt)
458 k->def_multi = true;
459
e31b8213
JB		 460 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
461 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
462 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
463 return -EINVAL;
464 }
465
dbd2fd65
JB		 466 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
467 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
468 int err = nla_parse_nested(
469 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
470 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
471 nl80211_key_default_policy);
472 if (err)
473 return err;
474
475 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
476 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
477 }
478
b9454e83
JB		 479 return 0;
480}
481
482static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
483{
484 int err;
485
486 memset(k, 0, sizeof(*k));
487 k->idx = -1;
e31b8213 488 k->type = -1;
b9454e83
JB		 489
490 if (info->attrs[NL80211_ATTR_KEY])
491 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
492 else
493 err = nl80211_parse_key_old(info, k);
494
495 if (err)
496 return err;
497
498 if (k->def && k->defmgmt)
499 return -EINVAL;
500
dbd2fd65
JB		 501 if (k->defmgmt) {
502 if (k->def_uni || !k->def_multi)
503 return -EINVAL;
504 }
505
b9454e83
JB		 506 if (k->idx != -1) {
507 if (k->defmgmt) {
508 if (k->idx < 4 || k->idx > 5)
509 return -EINVAL;
510 } else if (k->def) {
511 if (k->idx < 0 || k->idx > 3)
512 return -EINVAL;
513 } else {
514 if (k->idx < 0 || k->idx > 5)
515 return -EINVAL;
516 }
517 }
518
519 return 0;
520}
521
fffd0934
JB		 522static struct cfg80211_cached_keys *
523nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
524 struct nlattr *keys)
525{
526 struct key_parse parse;
527 struct nlattr *key;
528 struct cfg80211_cached_keys *result;
529 int rem, err, def = 0;
530
531 result = kzalloc(sizeof(*result), GFP_KERNEL);
532 if (!result)
533 return ERR_PTR(-ENOMEM);
534
535 result->def = -1;
536 result->defmgmt = -1;
537
538 nla_for_each_nested(key, keys, rem) {
539 memset(&parse, 0, sizeof(parse));
540 parse.idx = -1;
541
542 err = nl80211_parse_key_new(key, &parse);
543 if (err)
544 goto error;
545 err = -EINVAL;
546 if (!parse.p.key)
547 goto error;
548 if (parse.idx < 0 || parse.idx > 4)
549 goto error;
550 if (parse.def) {
551 if (def)
552 goto error;
553 def = 1;
554 result->def = parse.idx;
dbd2fd65
JB		 555 if (!parse.def_uni || !parse.def_multi)
556 goto error;
fffd0934
JB		 557 } else if (parse.defmgmt)
558 goto error;
559 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 560 parse.idx, false, NULL);
fffd0934
JB		 561 if (err)
562 goto error;
563 result->params[parse.idx].cipher = parse.p.cipher;
564 result->params[parse.idx].key_len = parse.p.key_len;
565 result->params[parse.idx].key = result->data[parse.idx];
566 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
567 }
568
569 return result;
570 error:
571 kfree(result);
572 return ERR_PTR(err);
573}
574
575static int nl80211_key_allowed(struct wireless_dev *wdev)
576{
577 ASSERT_WDEV_LOCK(wdev);
578
fffd0934
JB		 579 switch (wdev->iftype) {
580 case NL80211_IFTYPE_AP:
581 case NL80211_IFTYPE_AP_VLAN:
074ac8df 582 case NL80211_IFTYPE_P2P_GO:
ff973af7 583 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 584 break;
585 case NL80211_IFTYPE_ADHOC:
586 if (!wdev->current_bss)
587 return -ENOLINK;
588 break;
589 case NL80211_IFTYPE_STATION:
074ac8df 590 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 591 if (wdev->sme_state != CFG80211_SME_CONNECTED)
592 return -ENOLINK;
593 break;
594 default:
595 return -EINVAL;
596 }
597
598 return 0;
599}
600
7527a782
JB		 601static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
602{
603 struct nlattr *nl_modes = nla_nest_start(msg, attr);
604 int i;
605
606 if (!nl_modes)
607 goto nla_put_failure;
608
609 i = 0;
610 while (ifmodes) {
611 if (ifmodes & 1)
612 NLA_PUT_FLAG(msg, i);
613 ifmodes >>= 1;
614 i++;
615 }
616
617 nla_nest_end(msg, nl_modes);
618 return 0;
619
620nla_put_failure:
621 return -ENOBUFS;
622}
623
624static int nl80211_put_iface_combinations(struct wiphy *wiphy,
625 struct sk_buff *msg)
626{
627 struct nlattr *nl_combis;
628 int i, j;
629
630 nl_combis = nla_nest_start(msg,
631 NL80211_ATTR_INTERFACE_COMBINATIONS);
632 if (!nl_combis)
633 goto nla_put_failure;
634
635 for (i = 0; i < wiphy->n_iface_combinations; i++) {
636 const struct ieee80211_iface_combination *c;
637 struct nlattr *nl_combi, *nl_limits;
638
639 c = &wiphy->iface_combinations[i];
640
641 nl_combi = nla_nest_start(msg, i + 1);
642 if (!nl_combi)
643 goto nla_put_failure;
644
645 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
646 if (!nl_limits)
647 goto nla_put_failure;
648
649 for (j = 0; j < c->n_limits; j++) {
650 struct nlattr *nl_limit;
651
652 nl_limit = nla_nest_start(msg, j + 1);
653 if (!nl_limit)
654 goto nla_put_failure;
655 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
656 c->limits[j].max);
657 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
658 c->limits[j].types))
659 goto nla_put_failure;
660 nla_nest_end(msg, nl_limit);
661 }
662
663 nla_nest_end(msg, nl_limits);
664
665 if (c->beacon_int_infra_match)
666 NLA_PUT_FLAG(msg,
667 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
668 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
669 c->num_different_channels);
670 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
671 c->max_interfaces);
672
673 nla_nest_end(msg, nl_combi);
674 }
675
676 nla_nest_end(msg, nl_combis);
677
678 return 0;
679nla_put_failure:
680 return -ENOBUFS;
681}
682
55682965
JB		 683static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
684 struct cfg80211_registered_device *dev)
685{
686 void *hdr;
ee688b00
JB		 687 struct nlattr *nl_bands, *nl_band;
688 struct nlattr *nl_freqs, *nl_freq;
689 struct nlattr *nl_rates, *nl_rate;
8fdc621d 690 struct nlattr *nl_cmds;
ee688b00
JB		 691 enum ieee80211_band band;
692 struct ieee80211_channel *chan;
693 struct ieee80211_rate *rate;
694 int i;
2e161f78
JB		 695 const struct ieee80211_txrx_stypes *mgmt_stypes =
696 dev->wiphy.mgmt_stypes;
55682965
JB		 697
698 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
699 if (!hdr)
700 return -1;
701
b5850a7a 702 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 703 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 704
f5ea9120
JB		 705 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
706 cfg80211_rdev_list_generation);
707
b9a5f8ca
JM		 708 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
709 dev->wiphy.retry_short);
710 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
711 dev->wiphy.retry_long);
712 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
713 dev->wiphy.frag_threshold);
714 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
715 dev->wiphy.rts_threshold);
81077e82
LT		 716 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
717 dev->wiphy.coverage_class);
2a519311
JB		 718 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
719 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 720 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
721 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 722 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
723 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 724 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
725 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 726 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
727 dev->wiphy.max_match_sets);
ee688b00 728
e31b8213
JB		 729 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
730 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 731 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
732 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 733 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
734 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
e31b8213 735
f4b34b55
VN		 736 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
737 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
738
25e47c18
JB		 739 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
740 sizeof(u32) * dev->wiphy.n_cipher_suites,
741 dev->wiphy.cipher_suites);
742
67fbb16b
SO		 743 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
744 dev->wiphy.max_num_pmkids);
745
c0692b8f
JB		 746 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
748
39fd5de4
BR		 749 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
750 dev->wiphy.available_antennas_tx);
751 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
752 dev->wiphy.available_antennas_rx);
753
7f531e03
BR		 754 if ((dev->wiphy.available_antennas_tx ||
755 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 756 u32 tx_ant = 0, rx_ant = 0;
757 int res;
758 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
759 if (!res) {
760 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
761 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
762 }
763 }
764
7527a782
JB		 765 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
766 dev->wiphy.interface_modes))
f59ac048
LR		 767 goto nla_put_failure;
768
ee688b00
JB		 769 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
770 if (!nl_bands)
771 goto nla_put_failure;
772
773 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
774 if (!dev->wiphy.bands[band])
775 continue;
776
777 nl_band = nla_nest_start(msg, band);
778 if (!nl_band)
779 goto nla_put_failure;
780
d51626df
JB		 781 /* add HT info */
782 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
783 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
784 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
785 &dev->wiphy.bands[band]->ht_cap.mcs);
786 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
787 dev->wiphy.bands[band]->ht_cap.cap);
788 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
789 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
790 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
791 dev->wiphy.bands[band]->ht_cap.ampdu_density);
792 }
793
ee688b00
JB		 794 /* add frequencies */
795 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
796 if (!nl_freqs)
797 goto nla_put_failure;
798
799 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
800 nl_freq = nla_nest_start(msg, i);
801 if (!nl_freq)
802 goto nla_put_failure;
803
804 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 805
806 if (nl80211_msg_put_channel(msg, chan))
807 goto nla_put_failure;
e2f367f2 808
ee688b00
JB		 809 nla_nest_end(msg, nl_freq);
810 }
811
812 nla_nest_end(msg, nl_freqs);
813
814 /* add bitrates */
815 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
816 if (!nl_rates)
817 goto nla_put_failure;
818
819 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
820 nl_rate = nla_nest_start(msg, i);
821 if (!nl_rate)
822 goto nla_put_failure;
823
824 rate = &dev->wiphy.bands[band]->bitrates[i];
825 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
826 rate->bitrate);
827 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
828 NLA_PUT_FLAG(msg,
829 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
830
831 nla_nest_end(msg, nl_rate);
832 }
833
834 nla_nest_end(msg, nl_rates);
835
836 nla_nest_end(msg, nl_band);
837 }
838 nla_nest_end(msg, nl_bands);
839
8fdc621d
JB		 840 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
841 if (!nl_cmds)
842 goto nla_put_failure;
843
844 i = 0;
845#define CMD(op, n) \
846 do { \
847 if (dev->ops->op) { \
848 i++; \
849 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
850 } \
851 } while (0)
852
853 CMD(add_virtual_intf, NEW_INTERFACE);
854 CMD(change_virtual_intf, SET_INTERFACE);
855 CMD(add_key, NEW_KEY);
856 CMD(add_beacon, NEW_BEACON);
857 CMD(add_station, NEW_STATION);
858 CMD(add_mpath, NEW_MPATH);
24bdd9f4 859 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 860 CMD(change_bss, SET_BSS);
636a5d36
JM		 861 CMD(auth, AUTHENTICATE);
862 CMD(assoc, ASSOCIATE);
863 CMD(deauth, DEAUTHENTICATE);
864 CMD(disassoc, DISASSOCIATE);
04a773ad 865 CMD(join_ibss, JOIN_IBSS);
29cbe68c 866 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 867 CMD(set_pmksa, SET_PMKSA);
868 CMD(del_pmksa, DEL_PMKSA);
869 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 870 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 871 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 872 CMD(mgmt_tx, FRAME);
f7ca38df 873 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 874 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 875 i++;
876 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
877 }
f444de05 878 CMD(set_channel, SET_CHANNEL);
e8347eba 879 CMD(set_wds_peer, SET_WDS_PEER);
807f8a8c
LC		 880 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
881 CMD(sched_scan_start, START_SCHED_SCAN);
8fdc621d
JB		 882
883#undef CMD
b23aa676 884
6829c878 885 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 886 i++;
887 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
888 }
889
6829c878 890 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 891 i++;
892 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
893 }
894
8fdc621d
JB		 895 nla_nest_end(msg, nl_cmds);
896
a293911d
JB		 897 if (dev->ops->remain_on_channel)
898 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
899 dev->wiphy.max_remain_on_channel_duration);
900
d2da5878 901 if (dev->ops->mgmt_tx_cancel_wait)
f7ca38df
JB		 902 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
903
2e161f78
JB		 904 if (mgmt_stypes) {
905 u16 stypes;
906 struct nlattr *nl_ftypes, *nl_ifs;
907 enum nl80211_iftype ift;
908
909 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
910 if (!nl_ifs)
911 goto nla_put_failure;
912
913 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
914 nl_ftypes = nla_nest_start(msg, ift);
915 if (!nl_ftypes)
916 goto nla_put_failure;
917 i = 0;
918 stypes = mgmt_stypes[ift].tx;
919 while (stypes) {
920 if (stypes & 1)
921 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
922 (i << 4) | IEEE80211_FTYPE_MGMT);
923 stypes >>= 1;
924 i++;
925 }
926 nla_nest_end(msg, nl_ftypes);
927 }
928
74b70a4e
JB		 929 nla_nest_end(msg, nl_ifs);
930
2e161f78
JB		 931 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
932 if (!nl_ifs)
933 goto nla_put_failure;
934
935 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
936 nl_ftypes = nla_nest_start(msg, ift);
937 if (!nl_ftypes)
938 goto nla_put_failure;
939 i = 0;
940 stypes = mgmt_stypes[ift].rx;
941 while (stypes) {
942 if (stypes & 1)
943 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
944 (i << 4) | IEEE80211_FTYPE_MGMT);
945 stypes >>= 1;
946 i++;
947 }
948 nla_nest_end(msg, nl_ftypes);
949 }
950 nla_nest_end(msg, nl_ifs);
951 }
952
ff1b6e69
JB		 953 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
954 struct nlattr *nl_wowlan;
955
956 nl_wowlan = nla_nest_start(msg,
957 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
958 if (!nl_wowlan)
959 goto nla_put_failure;
960
961 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
962 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
963 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
964 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
965 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
966 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 967 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
968 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
969 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
970 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
971 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
972 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
973 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
974 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
975 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
976 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 977 if (dev->wiphy.wowlan.n_patterns) {
978 struct nl80211_wowlan_pattern_support pat = {
979 .max_patterns = dev->wiphy.wowlan.n_patterns,
980 .min_pattern_len =
981 dev->wiphy.wowlan.pattern_min_len,
982 .max_pattern_len =
983 dev->wiphy.wowlan.pattern_max_len,
984 };
985 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
986 sizeof(pat), &pat);
987 }
988
989 nla_nest_end(msg, nl_wowlan);
990 }
991
7527a782
JB		 992 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
993 dev->wiphy.software_iftypes))
994 goto nla_put_failure;
995
996 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
997 goto nla_put_failure;
998
55682965
JB		 999 return genlmsg_end(msg, hdr);
1000
1001 nla_put_failure:
bc3ed28c
TG		 1002 genlmsg_cancel(msg, hdr);
1003 return -EMSGSIZE;
55682965
JB		 1004}
1005
1006static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1007{
1008 int idx = 0;
1009 int start = cb->args[0];
1010 struct cfg80211_registered_device *dev;
1011
a1794390 1012 mutex_lock(&cfg80211_mutex);
79c97e97 1013 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1014 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1015 continue;
b4637271 1016 if (++idx <= start)
55682965
JB		 1017 continue;
1018 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1019 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1020 dev) < 0) {
1021 idx--;
55682965 1022 break;
b4637271 1023 }
55682965 1024 }
a1794390 1025 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1026
1027 cb->args[0] = idx;
1028
1029 return skb->len;
1030}
1031
1032static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1033{
1034 struct sk_buff *msg;
4c476991 1035 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1036
fd2120ca 1037 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1038 if (!msg)
4c476991 1039 return -ENOMEM;
55682965 1040
4c476991
JB		 1041 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1042 nlmsg_free(msg);
1043 return -ENOBUFS;
1044 }
55682965 1045
134e6375 1046 return genlmsg_reply(msg, info);
55682965
JB		 1047}
1048
31888487
JM		 1049static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1050 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1051 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1052 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1053 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1054 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1055};
1056
1057static int parse_txq_params(struct nlattr *tb[],
1058 struct ieee80211_txq_params *txq_params)
1059{
1060 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1061 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1062 !tb[NL80211_TXQ_ATTR_AIFS])
1063 return -EINVAL;
1064
1065 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1066 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1067 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1068 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1069 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1070
1071 return 0;
1072}
1073
f444de05
JB		 1074static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1075{
1076 /*
1077 * You can only set the channel explicitly for AP, mesh
1078 * and WDS type interfaces; all others have their channel
1079 * managed via their respective "establish a connection"
1080 * command (connect, join, ...)
1081 *
1082 * Monitors are special as they are normally slaved to
1083 * whatever else is going on, so they behave as though
1084 * you tried setting the wiphy channel itself.
1085 */
1086 return !wdev ||
1087 wdev->iftype == NL80211_IFTYPE_AP ||
1088 wdev->iftype == NL80211_IFTYPE_WDS ||
1089 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1090 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1091 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1092}
1093
1094static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1095 struct wireless_dev *wdev,
1096 struct genl_info *info)
1097{
1098 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1099 u32 freq;
1100 int result;
1101
1102 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1103 return -EINVAL;
1104
1105 if (!nl80211_can_set_dev_channel(wdev))
1106 return -EOPNOTSUPP;
1107
1108 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1109 channel_type = nla_get_u32(info->attrs[
1110 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1111 if (channel_type != NL80211_CHAN_NO_HT &&
1112 channel_type != NL80211_CHAN_HT20 &&
1113 channel_type != NL80211_CHAN_HT40PLUS &&
1114 channel_type != NL80211_CHAN_HT40MINUS)
1115 return -EINVAL;
1116 }
1117
1118 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1119
1120 mutex_lock(&rdev->devlist_mtx);
1121 if (wdev) {
1122 wdev_lock(wdev);
1123 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1124 wdev_unlock(wdev);
1125 } else {
1126 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1127 }
1128 mutex_unlock(&rdev->devlist_mtx);
1129
1130 return result;
1131}
1132
1133static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1134{
4c476991
JB		 1135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1136 struct net_device *netdev = info->user_ptr[1];
f444de05 1137
4c476991 1138 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1139}
1140
e8347eba
BJ		 1141static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1142{
43b19952
JB		 1143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1144 struct net_device *dev = info->user_ptr[1];
1145 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1146 const u8 *bssid;
e8347eba
BJ		 1147
1148 if (!info->attrs[NL80211_ATTR_MAC])
1149 return -EINVAL;
1150
43b19952
JB		 1151 if (netif_running(dev))
1152 return -EBUSY;
e8347eba 1153
43b19952
JB		 1154 if (!rdev->ops->set_wds_peer)
1155 return -EOPNOTSUPP;
e8347eba 1156
43b19952
JB		 1157 if (wdev->iftype != NL80211_IFTYPE_WDS)
1158 return -EOPNOTSUPP;
e8347eba
BJ		 1159
1160 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1161 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1162}
1163
1164
55682965
JB		 1165static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1166{
1167 struct cfg80211_registered_device *rdev;
f444de05
JB		 1168 struct net_device *netdev = NULL;
1169 struct wireless_dev *wdev;
a1e567c8 1170 int result = 0, rem_txq_params = 0;
31888487 1171 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1172 u32 changed;
1173 u8 retry_short = 0, retry_long = 0;
1174 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1175 u8 coverage_class = 0;
55682965 1176
f444de05
JB		 1177 /*
1178 * Try to find the wiphy and netdev. Normally this
1179 * function shouldn't need the netdev, but this is
1180 * done for backward compatibility -- previously
1181 * setting the channel was done per wiphy, but now
1182 * it is per netdev. Previous userland like hostapd
1183 * also passed a netdev to set_wiphy, so that it is
1184 * possible to let that go to the right netdev!
1185 */
4bbf4d56
JB		 1186 mutex_lock(&cfg80211_mutex);
1187
f444de05
JB		 1188 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1189 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1190
1191 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1192 if (netdev && netdev->ieee80211_ptr) {
1193 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1194 mutex_lock(&rdev->mtx);
1195 } else
1196 netdev = NULL;
4bbf4d56
JB		 1197 }
1198
f444de05
JB		 1199 if (!netdev) {
1200 rdev = __cfg80211_rdev_from_info(info);
1201 if (IS_ERR(rdev)) {
1202 mutex_unlock(&cfg80211_mutex);
4c476991 1203 return PTR_ERR(rdev);
f444de05
JB		 1204 }
1205 wdev = NULL;
1206 netdev = NULL;
1207 result = 0;
1208
1209 mutex_lock(&rdev->mtx);
1210 } else if (netif_running(netdev) &&
1211 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1212 wdev = netdev->ieee80211_ptr;
1213 else
1214 wdev = NULL;
1215
1216 /*
1217 * end workaround code, by now the rdev is available
1218 * and locked, and wdev may or may not be NULL.
1219 */
4bbf4d56
JB		 1220
1221 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1222 result = cfg80211_dev_rename(
1223 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1224
1225 mutex_unlock(&cfg80211_mutex);
1226
1227 if (result)
1228 goto bad_res;
31888487
JM		 1229
1230 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1231 struct ieee80211_txq_params txq_params;
1232 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1233
1234 if (!rdev->ops->set_txq_params) {
1235 result = -EOPNOTSUPP;
1236 goto bad_res;
1237 }
1238
f70f01c2
EP		 1239 if (!netdev) {
1240 result = -EINVAL;
1241 goto bad_res;
1242 }
1243
31888487
JM		 1244 nla_for_each_nested(nl_txq_params,
1245 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1246 rem_txq_params) {
1247 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1248 nla_data(nl_txq_params),
1249 nla_len(nl_txq_params),
1250 txq_params_policy);
1251 result = parse_txq_params(tb, &txq_params);
1252 if (result)
1253 goto bad_res;
1254
1255 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1256 netdev,
31888487
JM		 1257 &txq_params);
1258 if (result)
1259 goto bad_res;
1260 }
1261 }
55682965 1262
72bdcf34 1263 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1264 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1265 if (result)
1266 goto bad_res;
1267 }
1268
98d2ff8b
JO		 1269 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1270 enum nl80211_tx_power_setting type;
1271 int idx, mbm = 0;
1272
1273 if (!rdev->ops->set_tx_power) {
60ea385f 1274 result = -EOPNOTSUPP;
98d2ff8b
JO		 1275 goto bad_res;
1276 }
1277
1278 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1279 type = nla_get_u32(info->attrs[idx]);
1280
1281 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1282 (type != NL80211_TX_POWER_AUTOMATIC)) {
1283 result = -EINVAL;
1284 goto bad_res;
1285 }
1286
1287 if (type != NL80211_TX_POWER_AUTOMATIC) {
1288 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1289 mbm = nla_get_u32(info->attrs[idx]);
1290 }
1291
1292 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1293 if (result)
1294 goto bad_res;
1295 }
1296
afe0cbf8
BR		 1297 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1298 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1299 u32 tx_ant, rx_ant;
7f531e03
BR		 1300 if ((!rdev->wiphy.available_antennas_tx &&
1301 !rdev->wiphy.available_antennas_rx) ||
1302 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1303 result = -EOPNOTSUPP;
1304 goto bad_res;
1305 }
1306
1307 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1308 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1309
a7ffac95 1310 /* reject antenna configurations which don't match the
7f531e03
BR		 1311 * available antenna masks, except for the "all" mask */
1312 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1313 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1314 result = -EINVAL;
1315 goto bad_res;
1316 }
1317
7f531e03
BR		 1318 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1319 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1320
afe0cbf8
BR		 1321 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1322 if (result)
1323 goto bad_res;
1324 }
1325
b9a5f8ca
JM		 1326 changed = 0;
1327
1328 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1329 retry_short = nla_get_u8(
1330 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1331 if (retry_short == 0) {
1332 result = -EINVAL;
1333 goto bad_res;
1334 }
1335 changed |= WIPHY_PARAM_RETRY_SHORT;
1336 }
1337
1338 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1339 retry_long = nla_get_u8(
1340 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1341 if (retry_long == 0) {
1342 result = -EINVAL;
1343 goto bad_res;
1344 }
1345 changed |= WIPHY_PARAM_RETRY_LONG;
1346 }
1347
1348 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1349 frag_threshold = nla_get_u32(
1350 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1351 if (frag_threshold < 256) {
1352 result = -EINVAL;
1353 goto bad_res;
1354 }
1355 if (frag_threshold != (u32) -1) {
1356 /*
1357 * Fragments (apart from the last one) are required to
1358 * have even length. Make the fragmentation code
1359 * simpler by stripping LSB should someone try to use
1360 * odd threshold value.
1361 */
1362 frag_threshold &= ~0x1;
1363 }
1364 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1365 }
1366
1367 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1368 rts_threshold = nla_get_u32(
1369 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1370 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1371 }
1372
81077e82
LT		 1373 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1374 coverage_class = nla_get_u8(
1375 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1376 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1377 }
1378
b9a5f8ca
JM		 1379 if (changed) {
1380 u8 old_retry_short, old_retry_long;
1381 u32 old_frag_threshold, old_rts_threshold;
81077e82 1382 u8 old_coverage_class;
b9a5f8ca
JM		 1383
1384 if (!rdev->ops->set_wiphy_params) {
1385 result = -EOPNOTSUPP;
1386 goto bad_res;
1387 }
1388
1389 old_retry_short = rdev->wiphy.retry_short;
1390 old_retry_long = rdev->wiphy.retry_long;
1391 old_frag_threshold = rdev->wiphy.frag_threshold;
1392 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1393 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1394
1395 if (changed & WIPHY_PARAM_RETRY_SHORT)
1396 rdev->wiphy.retry_short = retry_short;
1397 if (changed & WIPHY_PARAM_RETRY_LONG)
1398 rdev->wiphy.retry_long = retry_long;
1399 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1400 rdev->wiphy.frag_threshold = frag_threshold;
1401 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1402 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1403 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1404 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1405
1406 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1407 if (result) {
1408 rdev->wiphy.retry_short = old_retry_short;
1409 rdev->wiphy.retry_long = old_retry_long;
1410 rdev->wiphy.frag_threshold = old_frag_threshold;
1411 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1412 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1413 }
1414 }
72bdcf34 1415
306d6112 1416 bad_res:
4bbf4d56 1417 mutex_unlock(&rdev->mtx);
f444de05
JB		 1418 if (netdev)
1419 dev_put(netdev);
55682965
JB		 1420 return result;
1421}
1422
1423
1424static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1425 struct cfg80211_registered_device *rdev,
55682965
JB		 1426 struct net_device *dev)
1427{
1428 void *hdr;
1429
1430 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1431 if (!hdr)
1432 return -1;
1433
1434 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1435 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1436 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1437 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1438
1439 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1440 rdev->devlist_generation ^
1441 (cfg80211_rdev_list_generation << 2));
1442
55682965
JB		 1443 return genlmsg_end(msg, hdr);
1444
1445 nla_put_failure:
bc3ed28c
TG		 1446 genlmsg_cancel(msg, hdr);
1447 return -EMSGSIZE;
55682965
JB		 1448}
1449
1450static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1451{
1452 int wp_idx = 0;
1453 int if_idx = 0;
1454 int wp_start = cb->args[0];
1455 int if_start = cb->args[1];
f5ea9120 1456 struct cfg80211_registered_device *rdev;
55682965
JB		 1457 struct wireless_dev *wdev;
1458
a1794390 1459 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1460 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1461 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1462 continue;
bba95fef
JB		 1463 if (wp_idx < wp_start) {
1464 wp_idx++;
55682965 1465 continue;
bba95fef 1466 }
55682965
JB		 1467 if_idx = 0;
1468
f5ea9120
JB		 1469 mutex_lock(&rdev->devlist_mtx);
1470 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1471 if (if_idx < if_start) {
1472 if_idx++;
55682965 1473 continue;
bba95fef 1474 }
55682965
JB		 1475 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1476 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1477 rdev, wdev->netdev) < 0) {
1478 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1479 goto out;
1480 }
1481 if_idx++;
55682965 1482 }
f5ea9120 1483 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1484
1485 wp_idx++;
55682965 1486 }
bba95fef 1487 out:
a1794390 1488 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1489
1490 cb->args[0] = wp_idx;
1491 cb->args[1] = if_idx;
1492
1493 return skb->len;
1494}
1495
1496static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1497{
1498 struct sk_buff *msg;
4c476991
JB		 1499 struct cfg80211_registered_device *dev = info->user_ptr[0];
1500 struct net_device *netdev = info->user_ptr[1];
55682965 1501
fd2120ca 1502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1503 if (!msg)
4c476991 1504 return -ENOMEM;
55682965 1505
d726405a 1506 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1507 dev, netdev) < 0) {
1508 nlmsg_free(msg);
1509 return -ENOBUFS;
1510 }
55682965 1511
134e6375 1512 return genlmsg_reply(msg, info);
55682965
JB		 1513}
1514
66f7ac50
MW		 1515static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1516 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1517 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1518 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1519 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1520 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1521};
1522
1523static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1524{
1525 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1526 int flag;
1527
1528 *mntrflags = 0;
1529
1530 if (!nla)
1531 return -EINVAL;
1532
1533 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1534 nla, mntr_flags_policy))
1535 return -EINVAL;
1536
1537 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1538 if (flags[flag])
1539 *mntrflags |= (1<<flag);
1540
1541 return 0;
1542}
1543
9bc383de 1544static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1545 struct net_device *netdev, u8 use_4addr,
1546 enum nl80211_iftype iftype)
9bc383de 1547{
ad4bb6f8 1548 if (!use_4addr) {
f350a0a8 1549 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1550 return -EBUSY;
9bc383de 1551 return 0;
ad4bb6f8 1552 }
9bc383de
JB		 1553
1554 switch (iftype) {
1555 case NL80211_IFTYPE_AP_VLAN:
1556 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1557 return 0;
1558 break;
1559 case NL80211_IFTYPE_STATION:
1560 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1561 return 0;
1562 break;
1563 default:
1564 break;
1565 }
1566
1567 return -EOPNOTSUPP;
1568}
1569
55682965
JB		 1570static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1571{
4c476991 1572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1573 struct vif_params params;
e36d56b6 1574 int err;
04a773ad 1575 enum nl80211_iftype otype, ntype;
4c476991 1576 struct net_device *dev = info->user_ptr[1];
92ffe055 1577 u32 _flags, *flags = NULL;
ac7f9cfa 1578 bool change = false;
55682965 1579
2ec600d6
LCC		 1580 memset(&params, 0, sizeof(params));
1581
04a773ad 1582 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1583
723b038d 1584 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1585 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1586 if (otype != ntype)
ac7f9cfa 1587 change = true;
4c476991
JB		 1588 if (ntype > NL80211_IFTYPE_MAX)
1589 return -EINVAL;
723b038d
JB		 1590 }
1591
92ffe055 1592 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1593 struct wireless_dev *wdev = dev->ieee80211_ptr;
1594
4c476991
JB		 1595 if (ntype != NL80211_IFTYPE_MESH_POINT)
1596 return -EINVAL;
29cbe68c
JB		 1597 if (netif_running(dev))
1598 return -EBUSY;
1599
1600 wdev_lock(wdev);
1601 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1602 IEEE80211_MAX_MESH_ID_LEN);
1603 wdev->mesh_id_up_len =
1604 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1605 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1606 wdev->mesh_id_up_len);
1607 wdev_unlock(wdev);
2ec600d6
LCC		 1608 }
1609
8b787643
FF		 1610 if (info->attrs[NL80211_ATTR_4ADDR]) {
1611 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1612 change = true;
ad4bb6f8 1613 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1614 if (err)
4c476991 1615 return err;
8b787643
FF		 1616 } else {
1617 params.use_4addr = -1;
1618 }
1619
92ffe055 1620 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1621 if (ntype != NL80211_IFTYPE_MONITOR)
1622 return -EINVAL;
92ffe055
JB		 1623 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1624 &_flags);
ac7f9cfa 1625 if (err)
4c476991 1626 return err;
ac7f9cfa
JB		 1627
1628 flags = &_flags;
1629 change = true;
92ffe055 1630 }
3b85875a 1631
ac7f9cfa 1632 if (change)
3d54d255 1633 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1634 else
1635 err = 0;
60719ffd 1636
9bc383de
JB		 1637 if (!err && params.use_4addr != -1)
1638 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1639
55682965
JB		 1640 return err;
1641}
1642
1643static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1644{
4c476991 1645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1646 struct vif_params params;
f9e10ce4 1647 struct net_device *dev;
55682965
JB		 1648 int err;
1649 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1650 u32 flags;
55682965 1651
2ec600d6
LCC		 1652 memset(&params, 0, sizeof(params));
1653
55682965
JB		 1654 if (!info->attrs[NL80211_ATTR_IFNAME])
1655 return -EINVAL;
1656
1657 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1658 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1659 if (type > NL80211_IFTYPE_MAX)
1660 return -EINVAL;
1661 }
1662
79c97e97 1663 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1664 !(rdev->wiphy.interface_modes & (1 << type)))
1665 return -EOPNOTSUPP;
55682965 1666
9bc383de 1667 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1668 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1669 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1670 if (err)
4c476991 1671 return err;
9bc383de 1672 }
8b787643 1673
66f7ac50
MW		 1674 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1675 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1676 &flags);
f9e10ce4 1677 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1678 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1679 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1680 if (IS_ERR(dev))
1681 return PTR_ERR(dev);
2ec600d6 1682
29cbe68c
JB		 1683 if (type == NL80211_IFTYPE_MESH_POINT &&
1684 info->attrs[NL80211_ATTR_MESH_ID]) {
1685 struct wireless_dev *wdev = dev->ieee80211_ptr;
1686
1687 wdev_lock(wdev);
1688 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1689 IEEE80211_MAX_MESH_ID_LEN);
1690 wdev->mesh_id_up_len =
1691 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1692 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1693 wdev->mesh_id_up_len);
1694 wdev_unlock(wdev);
1695 }
1696
f9e10ce4 1697 return 0;
55682965
JB		 1698}
1699
1700static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1701{
4c476991
JB		 1702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1703 struct net_device *dev = info->user_ptr[1];
55682965 1704
4c476991
JB		 1705 if (!rdev->ops->del_virtual_intf)
1706 return -EOPNOTSUPP;
55682965 1707
4c476991 1708 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1709}
1710
41ade00f
JB		 1711struct get_key_cookie {
1712 struct sk_buff *msg;
1713 int error;
b9454e83 1714 int idx;
41ade00f
JB		 1715};
1716
1717static void get_key_callback(void *c, struct key_params *params)
1718{
b9454e83 1719 struct nlattr *key;
41ade00f
JB		 1720 struct get_key_cookie *cookie = c;
1721
1722 if (params->key)
1723 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1724 params->key_len, params->key);
1725
1726 if (params->seq)
1727 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1728 params->seq_len, params->seq);
1729
1730 if (params->cipher)
1731 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1732 params->cipher);
1733
b9454e83
JB		 1734 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1735 if (!key)
1736 goto nla_put_failure;
1737
1738 if (params->key)
1739 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1740 params->key_len, params->key);
1741
1742 if (params->seq)
1743 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1744 params->seq_len, params->seq);
1745
1746 if (params->cipher)
1747 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1748 params->cipher);
1749
1750 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1751
1752 nla_nest_end(cookie->msg, key);
1753
41ade00f
JB		 1754 return;
1755 nla_put_failure:
1756 cookie->error = 1;
1757}
1758
1759static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1760{
4c476991 1761 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1762 int err;
4c476991 1763 struct net_device *dev = info->user_ptr[1];
41ade00f 1764 u8 key_idx = 0;
e31b8213
JB		 1765 const u8 *mac_addr = NULL;
1766 bool pairwise;
41ade00f
JB		 1767 struct get_key_cookie cookie = {
1768 .error = 0,
1769 };
1770 void *hdr;
1771 struct sk_buff *msg;
1772
1773 if (info->attrs[NL80211_ATTR_KEY_IDX])
1774 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1775
3cfcf6ac 1776 if (key_idx > 5)
41ade00f
JB		 1777 return -EINVAL;
1778
1779 if (info->attrs[NL80211_ATTR_MAC])
1780 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1781
e31b8213
JB		 1782 pairwise = !!mac_addr;
1783 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1784 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1785 if (kt >= NUM_NL80211_KEYTYPES)
1786 return -EINVAL;
1787 if (kt != NL80211_KEYTYPE_GROUP &&
1788 kt != NL80211_KEYTYPE_PAIRWISE)
1789 return -EINVAL;
1790 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1791 }
1792
4c476991
JB		 1793 if (!rdev->ops->get_key)
1794 return -EOPNOTSUPP;
41ade00f 1795
fd2120ca 1796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1797 if (!msg)
1798 return -ENOMEM;
41ade00f
JB		 1799
1800 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1801 NL80211_CMD_NEW_KEY);
4c476991
JB		 1802 if (IS_ERR(hdr))
1803 return PTR_ERR(hdr);
41ade00f
JB		 1804
1805 cookie.msg = msg;
b9454e83 1806 cookie.idx = key_idx;
41ade00f
JB		 1807
1808 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1809 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1810 if (mac_addr)
1811 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1812
e31b8213
JB		 1813 if (pairwise && mac_addr &&
1814 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1815 return -ENOENT;
1816
1817 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1818 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1819
1820 if (err)
6c95e2a2 1821 goto free_msg;
41ade00f
JB		 1822
1823 if (cookie.error)
1824 goto nla_put_failure;
1825
1826 genlmsg_end(msg, hdr);
4c476991 1827 return genlmsg_reply(msg, info);
41ade00f
JB		 1828
1829 nla_put_failure:
1830 err = -ENOBUFS;
6c95e2a2 1831 free_msg:
41ade00f 1832 nlmsg_free(msg);
41ade00f
JB		 1833 return err;
1834}
1835
1836static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1837{
4c476991 1838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1839 struct key_parse key;
41ade00f 1840 int err;
4c476991 1841 struct net_device *dev = info->user_ptr[1];
41ade00f 1842
b9454e83
JB		 1843 err = nl80211_parse_key(info, &key);
1844 if (err)
1845 return err;
41ade00f 1846
b9454e83 1847 if (key.idx < 0)
41ade00f
JB		 1848 return -EINVAL;
1849
b9454e83
JB		 1850 /* only support setting default key */
1851 if (!key.def && !key.defmgmt)
41ade00f
JB		 1852 return -EINVAL;
1853
dbd2fd65 1854 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1855
dbd2fd65
JB		 1856 if (key.def) {
1857 if (!rdev->ops->set_default_key) {
1858 err = -EOPNOTSUPP;
1859 goto out;
1860 }
41ade00f 1861
dbd2fd65
JB		 1862 err = nl80211_key_allowed(dev->ieee80211_ptr);
1863 if (err)
1864 goto out;
1865
dbd2fd65
JB		 1866 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1867 key.def_uni, key.def_multi);
1868
1869 if (err)
1870 goto out;
fffd0934 1871
3d23e349 1872#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1873 dev->ieee80211_ptr->wext.default_key = key.idx;
1874#endif
1875 } else {
1876 if (key.def_uni || !key.def_multi) {
1877 err = -EINVAL;
1878 goto out;
1879 }
1880
1881 if (!rdev->ops->set_default_mgmt_key) {
1882 err = -EOPNOTSUPP;
1883 goto out;
1884 }
1885
1886 err = nl80211_key_allowed(dev->ieee80211_ptr);
1887 if (err)
1888 goto out;
1889
1890 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1891 dev, key.idx);
1892 if (err)
1893 goto out;
1894
1895#ifdef CONFIG_CFG80211_WEXT
1896 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1897#endif
dbd2fd65
JB		 1898 }
1899
1900 out:
fffd0934 1901 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1902
41ade00f
JB		 1903 return err;
1904}
1905
1906static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1907{
4c476991 1908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1909 int err;
4c476991 1910 struct net_device *dev = info->user_ptr[1];
b9454e83 1911 struct key_parse key;
e31b8213 1912 const u8 *mac_addr = NULL;
41ade00f 1913
b9454e83
JB		 1914 err = nl80211_parse_key(info, &key);
1915 if (err)
1916 return err;
41ade00f 1917
b9454e83 1918 if (!key.p.key)
41ade00f
JB		 1919 return -EINVAL;
1920
41ade00f
JB		 1921 if (info->attrs[NL80211_ATTR_MAC])
1922 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1923
e31b8213
JB		 1924 if (key.type == -1) {
1925 if (mac_addr)
1926 key.type = NL80211_KEYTYPE_PAIRWISE;
1927 else
1928 key.type = NL80211_KEYTYPE_GROUP;
1929 }
1930
1931 /* for now */
1932 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1933 key.type != NL80211_KEYTYPE_GROUP)
1934 return -EINVAL;
1935
4c476991
JB		 1936 if (!rdev->ops->add_key)
1937 return -EOPNOTSUPP;
25e47c18 1938
e31b8213
JB		 1939 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1940 key.type == NL80211_KEYTYPE_PAIRWISE,
1941 mac_addr))
4c476991 1942 return -EINVAL;
41ade00f 1943
fffd0934
JB		 1944 wdev_lock(dev->ieee80211_ptr);
1945 err = nl80211_key_allowed(dev->ieee80211_ptr);
1946 if (!err)
1947 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1948 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1949 mac_addr, &key.p);
1950 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1951
41ade00f
JB		 1952 return err;
1953}
1954
1955static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1956{
4c476991 1957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1958 int err;
4c476991 1959 struct net_device *dev = info->user_ptr[1];
41ade00f 1960 u8 *mac_addr = NULL;
b9454e83 1961 struct key_parse key;
41ade00f 1962
b9454e83
JB		 1963 err = nl80211_parse_key(info, &key);
1964 if (err)
1965 return err;
41ade00f
JB		 1966
1967 if (info->attrs[NL80211_ATTR_MAC])
1968 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1969
e31b8213
JB		 1970 if (key.type == -1) {
1971 if (mac_addr)
1972 key.type = NL80211_KEYTYPE_PAIRWISE;
1973 else
1974 key.type = NL80211_KEYTYPE_GROUP;
1975 }
1976
1977 /* for now */
1978 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1979 key.type != NL80211_KEYTYPE_GROUP)
1980 return -EINVAL;
1981
4c476991
JB		 1982 if (!rdev->ops->del_key)
1983 return -EOPNOTSUPP;
41ade00f 1984
fffd0934
JB		 1985 wdev_lock(dev->ieee80211_ptr);
1986 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1987
1988 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1989 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1990 err = -ENOENT;
1991
fffd0934 1992 if (!err)
e31b8213
JB		 1993 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1994 key.type == NL80211_KEYTYPE_PAIRWISE,
1995 mac_addr);
41ade00f 1996
3d23e349 1997#ifdef CONFIG_CFG80211_WEXT
08645126 1998 if (!err) {
b9454e83 1999 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2000 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2001 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2002 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2003 }
2004#endif
fffd0934 2005 wdev_unlock(dev->ieee80211_ptr);
08645126 2006
41ade00f
JB		 2007 return err;
2008}
2009
ed1b6cc7
JB		 2010static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2011{
2012 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2013 struct beacon_parameters *info);
4c476991
JB		 2014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2015 struct net_device *dev = info->user_ptr[1];
56d1893d 2016 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2017 struct beacon_parameters params;
56d1893d 2018 int haveinfo = 0, err;
ed1b6cc7 2019
9946ecfb
JM		 2020 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2021 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2022 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2023 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2024 return -EINVAL;
2025
074ac8df 2026 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2027 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2028 return -EOPNOTSUPP;
eec60b03 2029
56d1893d
JB		 2030 memset(&params, 0, sizeof(params));
2031
ed1b6cc7
JB		 2032 switch (info->genlhdr->cmd) {
2033 case NL80211_CMD_NEW_BEACON:
2034 /* these are required for NEW_BEACON */
2035 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2036 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2037 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2038 return -EINVAL;
ed1b6cc7 2039
56d1893d
JB		 2040 params.interval =
2041 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2042 params.dtim_period =
2043 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2044
2045 err = cfg80211_validate_beacon_int(rdev, params.interval);
2046 if (err)
2047 return err;
2048
32e9de84
JM		 2049 /*
2050 * In theory, some of these attributes could be required for
2051 * NEW_BEACON, but since they were not used when the command was
2052 * originally added, keep them optional for old user space
2053 * programs to work with drivers that do not need the additional
2054 * information.
2055 */
2056 if (info->attrs[NL80211_ATTR_SSID]) {
2057 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2058 params.ssid_len =
2059 nla_len(info->attrs[NL80211_ATTR_SSID]);
2060 if (params.ssid_len == 0 ||
2061 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2062 return -EINVAL;
2063 }
2064
2065 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2066 params.hidden_ssid = nla_get_u32(
2067 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2068 if (params.hidden_ssid !=
2069 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2070 params.hidden_ssid !=
2071 NL80211_HIDDEN_SSID_ZERO_LEN &&
2072 params.hidden_ssid !=
2073 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2074 return -EINVAL;
2075 }
2076
5fb628e9
JM		 2077 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2078
2079 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2080 params.auth_type = nla_get_u32(
2081 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2082 if (!nl80211_valid_auth_type(params.auth_type))
2083 return -EINVAL;
2084 } else
2085 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2086
2087 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2088 NL80211_MAX_NR_CIPHER_SUITES);
2089 if (err)
2090 return err;
2091
79c97e97 2092 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2093 break;
2094 case NL80211_CMD_SET_BEACON:
79c97e97 2095 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2096 break;
2097 default:
2098 WARN_ON(1);
4c476991 2099 return -EOPNOTSUPP;
ed1b6cc7
JB		 2100 }
2101
4c476991
JB		 2102 if (!call)
2103 return -EOPNOTSUPP;
ed1b6cc7 2104
ed1b6cc7
JB		 2105 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2106 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2107 params.head_len =
2108 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2109 haveinfo = 1;
2110 }
2111
2112 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2113 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2114 params.tail_len =
2115 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2116 haveinfo = 1;
2117 }
2118
4c476991
JB		 2119 if (!haveinfo)
2120 return -EINVAL;
3b85875a 2121
9946ecfb
JM		 2122 if (info->attrs[NL80211_ATTR_IE]) {
2123 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2124 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2125 }
2126
2127 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2128 params.proberesp_ies =
2129 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2130 params.proberesp_ies_len =
2131 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2132 }
2133
2134 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2135 params.assocresp_ies =
2136 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2137 params.assocresp_ies_len =
2138 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2139 }
2140
56d1893d
JB		 2141 err = call(&rdev->wiphy, dev, &params);
2142 if (!err && params.interval)
2143 wdev->beacon_interval = params.interval;
2144 return err;
ed1b6cc7
JB		 2145}
2146
2147static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2148{
4c476991
JB		 2149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2150 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2151 struct wireless_dev *wdev = dev->ieee80211_ptr;
2152 int err;
ed1b6cc7 2153
4c476991
JB		 2154 if (!rdev->ops->del_beacon)
2155 return -EOPNOTSUPP;
ed1b6cc7 2156
074ac8df 2157 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2158 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2159 return -EOPNOTSUPP;
3b85875a 2160
56d1893d
JB		 2161 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2162 if (!err)
2163 wdev->beacon_interval = 0;
2164 return err;
ed1b6cc7
JB		 2165}
2166
5727ef1b
JB		 2167static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2168 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2169 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2170 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2171 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2172 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2173};
2174
eccb8e8f
JB		 2175static int parse_station_flags(struct genl_info *info,
2176 struct station_parameters *params)
5727ef1b
JB		 2177{
2178 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2179 struct nlattr *nla;
5727ef1b
JB		 2180 int flag;
2181
eccb8e8f
JB		 2182 /*
2183 * Try parsing the new attribute first so userspace
2184 * can specify both for older kernels.
2185 */
2186 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2187 if (nla) {
2188 struct nl80211_sta_flag_update *sta_flags;
2189
2190 sta_flags = nla_data(nla);
2191 params->sta_flags_mask = sta_flags->mask;
2192 params->sta_flags_set = sta_flags->set;
2193 if ((params->sta_flags_mask |
2194 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2195 return -EINVAL;
2196 return 0;
2197 }
2198
2199 /* if present, parse the old attribute */
5727ef1b 2200
eccb8e8f 2201 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2202 if (!nla)
2203 return 0;
2204
2205 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2206 nla, sta_flags_policy))
2207 return -EINVAL;
2208
eccb8e8f
JB		 2209 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2210 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2211
2212 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2213 if (flags[flag])
eccb8e8f 2214 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2215
2216 return 0;
2217}
2218
c8dcfd8a
FF		 2219static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2220 int attr)
2221{
2222 struct nlattr *rate;
2223 u16 bitrate;
2224
2225 rate = nla_nest_start(msg, attr);
2226 if (!rate)
2227 goto nla_put_failure;
2228
2229 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2230 bitrate = cfg80211_calculate_bitrate(info);
2231 if (bitrate > 0)
2232 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2233
2234 if (info->flags & RATE_INFO_FLAGS_MCS)
2235 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2236 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2237 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2238 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2239 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2240
2241 nla_nest_end(msg, rate);
2242 return true;
2243
2244nla_put_failure:
2245 return false;
2246}
2247
fd5b74dc
JB		 2248static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2249 int flags, struct net_device *dev,
98b62183 2250 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2251{
2252 void *hdr;
f4263c98 2253 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2254
2255 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2256 if (!hdr)
2257 return -1;
2258
2259 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2260 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2261
f5ea9120
JB		 2262 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2263
2ec600d6
LCC		 2264 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2265 if (!sinfoattr)
fd5b74dc 2266 goto nla_put_failure;
ebe27c91
MSS		 2267 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2268 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2269 sinfo->connected_time);
2ec600d6
LCC		 2270 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2271 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2272 sinfo->inactive_time);
2273 if (sinfo->filled & STATION_INFO_RX_BYTES)
2274 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2275 sinfo->rx_bytes);
2276 if (sinfo->filled & STATION_INFO_TX_BYTES)
2277 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2278 sinfo->tx_bytes);
2279 if (sinfo->filled & STATION_INFO_LLID)
2280 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2281 sinfo->llid);
2282 if (sinfo->filled & STATION_INFO_PLID)
2283 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2284 sinfo->plid);
2285 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2286 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2287 sinfo->plink_state);
420e7fab
HR		 2288 if (sinfo->filled & STATION_INFO_SIGNAL)
2289 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2290 sinfo->signal);
541a45a1
BR		 2291 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2292 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2293 sinfo->signal_avg);
420e7fab 2294 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2295 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2296 NL80211_STA_INFO_TX_BITRATE))
2297 goto nla_put_failure;
2298 }
2299 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2300 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2301 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2302 goto nla_put_failure;
420e7fab 2303 }
98c8a60a
JM		 2304 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2305 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2306 sinfo->rx_packets);
2307 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2308 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2309 sinfo->tx_packets);
b206b4ef
BR		 2310 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2311 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2312 sinfo->tx_retries);
2313 if (sinfo->filled & STATION_INFO_TX_FAILED)
2314 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2315 sinfo->tx_failed);
f4263c98
PS		 2316 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2317 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2318 if (!bss_param)
2319 goto nla_put_failure;
2320
2321 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2322 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2323 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2324 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2325 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2326 NLA_PUT_FLAG(msg,
2327 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2328 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2329 sinfo->bss_param.dtim_period);
2330 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2331 sinfo->bss_param.beacon_interval);
2332
2333 nla_nest_end(msg, bss_param);
2334 }
2ec600d6 2335 nla_nest_end(msg, sinfoattr);
fd5b74dc 2336
040bdf71 2337 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2338 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2339 sinfo->assoc_req_ies);
2340
fd5b74dc
JB		 2341 return genlmsg_end(msg, hdr);
2342
2343 nla_put_failure:
bc3ed28c
TG		 2344 genlmsg_cancel(msg, hdr);
2345 return -EMSGSIZE;
fd5b74dc
JB		 2346}
2347
2ec600d6 2348static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2349 struct netlink_callback *cb)
2ec600d6 2350{
2ec600d6
LCC		 2351 struct station_info sinfo;
2352 struct cfg80211_registered_device *dev;
bba95fef 2353 struct net_device *netdev;
2ec600d6 2354 u8 mac_addr[ETH_ALEN];
bba95fef 2355 int sta_idx = cb->args[1];
2ec600d6 2356 int err;
2ec600d6 2357
67748893
JB		 2358 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2359 if (err)
2360 return err;
bba95fef
JB		 2361
2362 if (!dev->ops->dump_station) {
eec60b03 2363 err = -EOPNOTSUPP;
bba95fef
JB		 2364 goto out_err;
2365 }
2366
bba95fef 2367 while (1) {
f612cedf 2368 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2369 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2370 mac_addr, &sinfo);
2371 if (err == -ENOENT)
2372 break;
2373 if (err)
3b85875a 2374 goto out_err;
bba95fef
JB		 2375
2376 if (nl80211_send_station(skb,
2377 NETLINK_CB(cb->skb).pid,
2378 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2379 netdev, mac_addr,
2380 &sinfo) < 0)
2381 goto out;
2382
2383 sta_idx++;
2384 }
2385
2386
2387 out:
2388 cb->args[1] = sta_idx;
2389 err = skb->len;
bba95fef 2390 out_err:
67748893 2391 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2392
2393 return err;
2ec600d6 2394}
fd5b74dc 2395
5727ef1b
JB		 2396static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2397{
4c476991
JB		 2398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2399 struct net_device *dev = info->user_ptr[1];
2ec600d6 2400 struct station_info sinfo;
fd5b74dc
JB		 2401 struct sk_buff *msg;
2402 u8 *mac_addr = NULL;
4c476991 2403 int err;
fd5b74dc 2404
2ec600d6 2405 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2406
2407 if (!info->attrs[NL80211_ATTR_MAC])
2408 return -EINVAL;
2409
2410 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2411
4c476991
JB		 2412 if (!rdev->ops->get_station)
2413 return -EOPNOTSUPP;
3b85875a 2414
4c476991 2415 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2416 if (err)
4c476991 2417 return err;
2ec600d6 2418
fd2120ca 2419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2420 if (!msg)
4c476991 2421 return -ENOMEM;
fd5b74dc
JB		 2422
2423 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2424 dev, mac_addr, &sinfo) < 0) {
2425 nlmsg_free(msg);
2426 return -ENOBUFS;
2427 }
3b85875a 2428
4c476991 2429 return genlmsg_reply(msg, info);
5727ef1b
JB		 2430}
2431
2432/*
c258d2de 2433 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2434 */
463d0183 2435static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2436 struct cfg80211_registered_device *rdev,
2437 struct net_device **vlan)
2438{
463d0183 2439 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2440 *vlan = NULL;
2441
2442 if (vlanattr) {
463d0183
JB		 2443 *vlan = dev_get_by_index(genl_info_net(info),
2444 nla_get_u32(vlanattr));
5727ef1b
JB		 2445 if (!*vlan)
2446 return -ENODEV;
2447 if (!(*vlan)->ieee80211_ptr)
2448 return -EINVAL;
2449 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2450 return -EINVAL;
c258d2de
FF		 2451 if (!netif_running(*vlan))
2452 return -ENETDOWN;
5727ef1b
JB		 2453 }
2454 return 0;
2455}
2456
2457static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2458{
4c476991 2459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2460 int err;
4c476991 2461 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2462 struct station_parameters params;
2463 u8 *mac_addr = NULL;
2464
2465 memset(&params, 0, sizeof(params));
2466
2467 params.listen_interval = -1;
57cf8043 2468 params.plink_state = -1;
5727ef1b
JB		 2469
2470 if (info->attrs[NL80211_ATTR_STA_AID])
2471 return -EINVAL;
2472
2473 if (!info->attrs[NL80211_ATTR_MAC])
2474 return -EINVAL;
2475
2476 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2477
2478 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2479 params.supported_rates =
2480 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2481 params.supported_rates_len =
2482 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2483 }
2484
2485 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2486 params.listen_interval =
2487 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2488
36aedc90
JM		 2489 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2490 params.ht_capa =
2491 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2492
eccb8e8f 2493 if (parse_station_flags(info, &params))
5727ef1b
JB		 2494 return -EINVAL;
2495
2ec600d6
LCC		 2496 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2497 params.plink_action =
2498 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2499
9c3990aa
JC		 2500 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2501 params.plink_state =
2502 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2503
463d0183 2504 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2505 if (err)
034d655e 2506 goto out;
a97f4424
JB		 2507
2508 /* validate settings */
2509 err = 0;
2510
2511 switch (dev->ieee80211_ptr->iftype) {
2512 case NL80211_IFTYPE_AP:
2513 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2514 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2515 /* disallow mesh-specific things */
2516 if (params.plink_action)
2517 err = -EINVAL;
2518 break;
074ac8df 2519 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2520 case NL80211_IFTYPE_STATION:
2521 /* disallow everything but AUTHORIZED flag */
2522 if (params.plink_action)
2523 err = -EINVAL;
2524 if (params.vlan)
2525 err = -EINVAL;
2526 if (params.supported_rates)
2527 err = -EINVAL;
2528 if (params.ht_capa)
2529 err = -EINVAL;
2530 if (params.listen_interval >= 0)
2531 err = -EINVAL;
2532 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2533 err = -EINVAL;
2534 break;
2535 case NL80211_IFTYPE_MESH_POINT:
2536 /* disallow things mesh doesn't support */
2537 if (params.vlan)
2538 err = -EINVAL;
2539 if (params.ht_capa)
2540 err = -EINVAL;
2541 if (params.listen_interval >= 0)
2542 err = -EINVAL;
b39c48fa
JC		 2543 if (params.sta_flags_mask &
2544 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2545 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2546 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2547 err = -EINVAL;
2548 break;
2549 default:
2550 err = -EINVAL;
034d655e
JB		 2551 }
2552
5727ef1b
JB		 2553 if (err)
2554 goto out;
2555
79c97e97 2556 if (!rdev->ops->change_station) {
5727ef1b
JB		 2557 err = -EOPNOTSUPP;
2558 goto out;
2559 }
2560
79c97e97 2561 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2562
2563 out:
2564 if (params.vlan)
2565 dev_put(params.vlan);
3b85875a 2566
5727ef1b
JB		 2567 return err;
2568}
2569
c75786c9
EP		 2570static struct nla_policy
2571nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2572 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2573 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2574};
2575
5727ef1b
JB		 2576static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2577{
4c476991 2578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2579 int err;
4c476991 2580 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2581 struct station_parameters params;
2582 u8 *mac_addr = NULL;
2583
2584 memset(&params, 0, sizeof(params));
2585
2586 if (!info->attrs[NL80211_ATTR_MAC])
2587 return -EINVAL;
2588
5727ef1b
JB		 2589 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2590 return -EINVAL;
2591
2592 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2593 return -EINVAL;
2594
0e956c13
TLSC		 2595 if (!info->attrs[NL80211_ATTR_STA_AID])
2596 return -EINVAL;
2597
5727ef1b
JB		 2598 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2599 params.supported_rates =
2600 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2601 params.supported_rates_len =
2602 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2603 params.listen_interval =
2604 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2605
0e956c13
TLSC		 2606 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2607 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2608 return -EINVAL;
51b50fbe 2609
36aedc90
JM		 2610 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2611 params.ht_capa =
2612 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2613
96b78dff
JC		 2614 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2615 params.plink_action =
2616 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2617
eccb8e8f 2618 if (parse_station_flags(info, &params))
5727ef1b
JB		 2619 return -EINVAL;
2620
c75786c9 2621 /* parse WME attributes if sta is WME capable */
cedb5412 2622 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2623 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2624 info->attrs[NL80211_ATTR_STA_WME]) {
2625 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2626 struct nlattr *nla;
2627
2628 nla = info->attrs[NL80211_ATTR_STA_WME];
2629 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2630 nl80211_sta_wme_policy);
2631 if (err)
2632 return err;
2633
2634 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2635 params.uapsd_queues =
2636 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2637 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2638 return -EINVAL;
c75786c9
EP		 2639
2640 if (tb[NL80211_STA_WME_MAX_SP])
2641 params.max_sp =
2642 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2643
2644 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2645 return -EINVAL;
c75786c9
EP		 2646 }
2647
0e956c13 2648 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2649 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2650 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2651 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2652 return -EINVAL;
0e956c13 2653
463d0183 2654 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2655 if (err)
e80cf853 2656 goto out;
a97f4424
JB		 2657
2658 /* validate settings */
2659 err = 0;
2660
79c97e97 2661 if (!rdev->ops->add_station) {
5727ef1b
JB		 2662 err = -EOPNOTSUPP;
2663 goto out;
2664 }
2665
79c97e97 2666 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2667
2668 out:
2669 if (params.vlan)
2670 dev_put(params.vlan);
5727ef1b
JB		 2671 return err;
2672}
2673
2674static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2675{
4c476991
JB		 2676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2677 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2678 u8 *mac_addr = NULL;
2679
2680 if (info->attrs[NL80211_ATTR_MAC])
2681 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2682
e80cf853 2683 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2684 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2685 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2686 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2687 return -EINVAL;
5727ef1b 2688
4c476991
JB		 2689 if (!rdev->ops->del_station)
2690 return -EOPNOTSUPP;
3b85875a 2691
4c476991 2692 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2693}
2694
2ec600d6
LCC		 2695static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2696 int flags, struct net_device *dev,
2697 u8 *dst, u8 *next_hop,
2698 struct mpath_info *pinfo)
2699{
2700 void *hdr;
2701 struct nlattr *pinfoattr;
2702
2703 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2704 if (!hdr)
2705 return -1;
2706
2707 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2708 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2709 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2710
f5ea9120
JB		 2711 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2712
2ec600d6
LCC		 2713 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2714 if (!pinfoattr)
2715 goto nla_put_failure;
2716 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2717 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2718 pinfo->frame_qlen);
d19b3bf6
RP		 2719 if (pinfo->filled & MPATH_INFO_SN)
2720 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2721 pinfo->sn);
2ec600d6
LCC		 2722 if (pinfo->filled & MPATH_INFO_METRIC)
2723 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2724 pinfo->metric);
2725 if (pinfo->filled & MPATH_INFO_EXPTIME)
2726 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2727 pinfo->exptime);
2728 if (pinfo->filled & MPATH_INFO_FLAGS)
2729 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2730 pinfo->flags);
2731 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2732 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2733 pinfo->discovery_timeout);
2734 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2735 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2736 pinfo->discovery_retries);
2737
2738 nla_nest_end(msg, pinfoattr);
2739
2740 return genlmsg_end(msg, hdr);
2741
2742 nla_put_failure:
bc3ed28c
TG		 2743 genlmsg_cancel(msg, hdr);
2744 return -EMSGSIZE;
2ec600d6
LCC		 2745}
2746
2747static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2748 struct netlink_callback *cb)
2ec600d6 2749{
2ec600d6
LCC		 2750 struct mpath_info pinfo;
2751 struct cfg80211_registered_device *dev;
bba95fef 2752 struct net_device *netdev;
2ec600d6
LCC		 2753 u8 dst[ETH_ALEN];
2754 u8 next_hop[ETH_ALEN];
bba95fef 2755 int path_idx = cb->args[1];
2ec600d6 2756 int err;
2ec600d6 2757
67748893
JB		 2758 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2759 if (err)
2760 return err;
bba95fef
JB		 2761
2762 if (!dev->ops->dump_mpath) {
eec60b03 2763 err = -EOPNOTSUPP;
bba95fef
JB		 2764 goto out_err;
2765 }
2766
eec60b03
JM		 2767 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2768 err = -EOPNOTSUPP;
0448b5fc 2769 goto out_err;
eec60b03
JM		 2770 }
2771
bba95fef
JB		 2772 while (1) {
2773 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2774 dst, next_hop, &pinfo);
2775 if (err == -ENOENT)
2ec600d6 2776 break;
bba95fef 2777 if (err)
3b85875a 2778 goto out_err;
2ec600d6 2779
bba95fef
JB		 2780 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2781 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2782 netdev, dst, next_hop,
2783 &pinfo) < 0)
2784 goto out;
2ec600d6 2785
bba95fef 2786 path_idx++;
2ec600d6 2787 }
2ec600d6 2788
2ec600d6 2789
bba95fef
JB		 2790 out:
2791 cb->args[1] = path_idx;
2792 err = skb->len;
bba95fef 2793 out_err:
67748893 2794 nl80211_finish_netdev_dump(dev);
bba95fef 2795 return err;
2ec600d6
LCC		 2796}
2797
2798static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2799{
4c476991 2800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2801 int err;
4c476991 2802 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2803 struct mpath_info pinfo;
2804 struct sk_buff *msg;
2805 u8 *dst = NULL;
2806 u8 next_hop[ETH_ALEN];
2807
2808 memset(&pinfo, 0, sizeof(pinfo));
2809
2810 if (!info->attrs[NL80211_ATTR_MAC])
2811 return -EINVAL;
2812
2813 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2814
4c476991
JB		 2815 if (!rdev->ops->get_mpath)
2816 return -EOPNOTSUPP;
2ec600d6 2817
4c476991
JB		 2818 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2819 return -EOPNOTSUPP;
eec60b03 2820
79c97e97 2821 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2822 if (err)
4c476991 2823 return err;
2ec600d6 2824
fd2120ca 2825 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2826 if (!msg)
4c476991 2827 return -ENOMEM;
2ec600d6
LCC		 2828
2829 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2830 dev, dst, next_hop, &pinfo) < 0) {
2831 nlmsg_free(msg);
2832 return -ENOBUFS;
2833 }
3b85875a 2834
4c476991 2835 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2836}
2837
2838static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2839{
4c476991
JB		 2840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2841 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2842 u8 *dst = NULL;
2843 u8 *next_hop = NULL;
2844
2845 if (!info->attrs[NL80211_ATTR_MAC])
2846 return -EINVAL;
2847
2848 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2849 return -EINVAL;
2850
2851 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2852 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2853
4c476991
JB		 2854 if (!rdev->ops->change_mpath)
2855 return -EOPNOTSUPP;
35a8efe1 2856
4c476991
JB		 2857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2858 return -EOPNOTSUPP;
2ec600d6 2859
4c476991 2860 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2861}
4c476991 2862
2ec600d6
LCC		 2863static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2864{
4c476991
JB		 2865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2866 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2867 u8 *dst = NULL;
2868 u8 *next_hop = NULL;
2869
2870 if (!info->attrs[NL80211_ATTR_MAC])
2871 return -EINVAL;
2872
2873 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2874 return -EINVAL;
2875
2876 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2877 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2878
4c476991
JB		 2879 if (!rdev->ops->add_mpath)
2880 return -EOPNOTSUPP;
35a8efe1 2881
4c476991
JB		 2882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2883 return -EOPNOTSUPP;
2ec600d6 2884
4c476991 2885 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2886}
2887
2888static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2889{
4c476991
JB		 2890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2891 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2892 u8 *dst = NULL;
2893
2894 if (info->attrs[NL80211_ATTR_MAC])
2895 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2896
4c476991
JB		 2897 if (!rdev->ops->del_mpath)
2898 return -EOPNOTSUPP;
3b85875a 2899
4c476991 2900 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2901}
2902
9f1ba906
JM		 2903static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2904{
4c476991
JB		 2905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2906 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2907 struct bss_parameters params;
2908
2909 memset(&params, 0, sizeof(params));
2910 /* default to not changing parameters */
2911 params.use_cts_prot = -1;
2912 params.use_short_preamble = -1;
2913 params.use_short_slot_time = -1;
fd8aaaf3 2914 params.ap_isolate = -1;
50b12f59 2915 params.ht_opmode = -1;
9f1ba906
JM		 2916
2917 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2918 params.use_cts_prot =
2919 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2920 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2921 params.use_short_preamble =
2922 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2923 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2924 params.use_short_slot_time =
2925 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2926 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2927 params.basic_rates =
2928 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2929 params.basic_rates_len =
2930 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2931 }
fd8aaaf3
FF		 2932 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2933 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2934 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2935 params.ht_opmode =
2936 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2937
4c476991
JB		 2938 if (!rdev->ops->change_bss)
2939 return -EOPNOTSUPP;
9f1ba906 2940
074ac8df 2941 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2942 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2943 return -EOPNOTSUPP;
3b85875a 2944
4c476991 2945 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2946}
2947
b54452b0 2948static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2949 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2950 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2951 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2952 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2953 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2954 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2955};
2956
2957static int parse_reg_rule(struct nlattr *tb[],
2958 struct ieee80211_reg_rule *reg_rule)
2959{
2960 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2961 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2962
2963 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2964 return -EINVAL;
2965 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2966 return -EINVAL;
2967 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2968 return -EINVAL;
2969 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2970 return -EINVAL;
2971 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2972 return -EINVAL;
2973
2974 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2975
2976 freq_range->start_freq_khz =
2977 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2978 freq_range->end_freq_khz =
2979 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2980 freq_range->max_bandwidth_khz =
2981 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2982
2983 power_rule->max_eirp =
2984 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2985
2986 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2987 power_rule->max_antenna_gain =
2988 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2989
2990 return 0;
2991}
2992
2993static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2994{
2995 int r;
2996 char *data = NULL;
2997
80778f18
LR		 2998 /*
2999 * You should only get this when cfg80211 hasn't yet initialized
3000 * completely when built-in to the kernel right between the time
3001 * window between nl80211_init() and regulatory_init(), if that is
3002 * even possible.
3003 */
3004 mutex_lock(&cfg80211_mutex);
3005 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3006 mutex_unlock(&cfg80211_mutex);
3007 return -EINPROGRESS;
80778f18 3008 }
fe33eb39 3009 mutex_unlock(&cfg80211_mutex);
80778f18 3010
fe33eb39
LR		 3011 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3012 return -EINVAL;
b2e1b302
LR		 3013
3014 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3015
fe33eb39
LR		 3016 r = regulatory_hint_user(data);
3017
b2e1b302
LR		 3018 return r;
3019}
3020
24bdd9f4 3021static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3022 struct genl_info *info)
93da9cc1 3023{
4c476991 3024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3025 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3026 struct wireless_dev *wdev = dev->ieee80211_ptr;
3027 struct mesh_config cur_params;
3028 int err = 0;
93da9cc1 3029 void *hdr;
3030 struct nlattr *pinfoattr;
3031 struct sk_buff *msg;
3032
29cbe68c
JB		 3033 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3034 return -EOPNOTSUPP;
3035
24bdd9f4 3036 if (!rdev->ops->get_mesh_config)
4c476991 3037 return -EOPNOTSUPP;
f3f92586 3038
29cbe68c
JB		 3039 wdev_lock(wdev);
3040 /* If not connected, get default parameters */
3041 if (!wdev->mesh_id_len)
3042 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3043 else
24bdd9f4 3044 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3045 &cur_params);
3046 wdev_unlock(wdev);
3047
93da9cc1 3048 if (err)
4c476991 3049 return err;
93da9cc1 3050
3051 /* Draw up a netlink message to send back */
fd2120ca 3052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3053 if (!msg)
3054 return -ENOMEM;
93da9cc1 3055 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3056 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3057 if (!hdr)
efe1cf0c 3058 goto out;
24bdd9f4 3059 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3060 if (!pinfoattr)
3061 goto nla_put_failure;
3062 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3063 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3064 cur_params.dot11MeshRetryTimeout);
3065 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3066 cur_params.dot11MeshConfirmTimeout);
3067 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3068 cur_params.dot11MeshHoldingTimeout);
3069 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3070 cur_params.dot11MeshMaxPeerLinks);
3071 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3072 cur_params.dot11MeshMaxRetries);
3073 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3074 cur_params.dot11MeshTTL);
45904f21
JC		 3075 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3076 cur_params.element_ttl);
93da9cc1 3077 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3078 cur_params.auto_open_plinks);
3079 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3080 cur_params.dot11MeshHWMPmaxPREQretries);
3081 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3082 cur_params.path_refresh_time);
3083 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3084 cur_params.min_discovery_timeout);
3085 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3086 cur_params.dot11MeshHWMPactivePathTimeout);
3087 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3088 cur_params.dot11MeshHWMPpreqMinInterval);
3089 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3090 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3091 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3092 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3093 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3094 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3095 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3096 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3097 nla_nest_end(msg, pinfoattr);
3098 genlmsg_end(msg, hdr);
4c476991 3099 return genlmsg_reply(msg, info);
93da9cc1 3100
3b85875a 3101 nla_put_failure:
93da9cc1 3102 genlmsg_cancel(msg, hdr);
efe1cf0c 3103 out:
d080e275 3104 nlmsg_free(msg);
4c476991 3105 return -ENOBUFS;
93da9cc1 3106}
3107
b54452b0 3108static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3109 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3110 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3111 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3112 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3113 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3114 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3115 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3116 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3117
3118 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3119 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3120 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3121 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3122 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3123 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3124 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3125 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3126 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3127};
3128
c80d545d
JC		 3129static const struct nla_policy
3130 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3131 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3132 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3133 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3134 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3135 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3136 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3137};
3138
24bdd9f4 3139static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3140 struct mesh_config *cfg,
3141 u32 *mask_out)
93da9cc1 3142{
93da9cc1 3143 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3144 u32 mask = 0;
93da9cc1 3145
bd90fdcc
JB		 3146#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3147do {\
3148 if (table[attr_num]) {\
3149 cfg->param = nla_fn(table[attr_num]); \
3150 mask |= (1 << (attr_num - 1)); \
3151 } \
3152} while (0);\
3153
3154
24bdd9f4 3155 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3156 return -EINVAL;
3157 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3158 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3159 nl80211_meshconf_params_policy))
93da9cc1 3160 return -EINVAL;
3161
93da9cc1 3162 /* This makes sure that there aren't more than 32 mesh config
3163 * parameters (otherwise our bitfield scheme would not work.) */
3164 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3165
3166 /* Fill in the params struct */
93da9cc1 3167 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3168 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3170 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3171 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3172 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3174 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3175 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3176 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3177 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3178 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3180 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3181 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3182 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3183 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3184 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3185 nla_get_u8);
3186 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3187 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3189 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3190 nla_get_u16);
3191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3192 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3193 nla_get_u32);
3194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3195 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3196 nla_get_u16);
3197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3198 dot11MeshHWMPnetDiameterTraversalTime,
3199 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3200 nla_get_u16);
63c5723b
RP		 3201 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3202 dot11MeshHWMPRootMode, mask,
3203 NL80211_MESHCONF_HWMP_ROOTMODE,
3204 nla_get_u8);
0507e159
JC		 3205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3206 dot11MeshHWMPRannInterval, mask,
3207 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3208 nla_get_u16);
16dd7267
JC		 3209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3210 dot11MeshGateAnnouncementProtocol, mask,
3211 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3212 nla_get_u8);
bd90fdcc
JB		 3213 if (mask_out)
3214 *mask_out = mask;
c80d545d 3215
bd90fdcc
JB		 3216 return 0;
3217
3218#undef FILL_IN_MESH_PARAM_IF_SET
3219}
3220
c80d545d
JC		 3221static int nl80211_parse_mesh_setup(struct genl_info *info,
3222 struct mesh_setup *setup)
3223{
3224 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3225
3226 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3227 return -EINVAL;
3228 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3229 info->attrs[NL80211_ATTR_MESH_SETUP],
3230 nl80211_mesh_setup_params_policy))
3231 return -EINVAL;
3232
3233 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3234 setup->path_sel_proto =
3235 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3236 IEEE80211_PATH_PROTOCOL_VENDOR :
3237 IEEE80211_PATH_PROTOCOL_HWMP;
3238
3239 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3240 setup->path_metric =
3241 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3242 IEEE80211_PATH_METRIC_VENDOR :
3243 IEEE80211_PATH_METRIC_AIRTIME;
3244
581a8b0f
JC		 3245
3246 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3247 struct nlattr *ieattr =
581a8b0f 3248 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3249 if (!is_valid_ie_attr(ieattr))
3250 return -EINVAL;
581a8b0f
JC		 3251 setup->ie = nla_data(ieattr);
3252 setup->ie_len = nla_len(ieattr);
c80d545d 3253 }
b130e5ce
JC		 3254 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3255 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3256
3257 return 0;
3258}
3259
24bdd9f4 3260static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3261 struct genl_info *info)
bd90fdcc
JB		 3262{
3263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3264 struct net_device *dev = info->user_ptr[1];
29cbe68c 3265 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3266 struct mesh_config cfg;
3267 u32 mask;
3268 int err;
3269
29cbe68c
JB		 3270 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3271 return -EOPNOTSUPP;
3272
24bdd9f4 3273 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3274 return -EOPNOTSUPP;
3275
24bdd9f4 3276 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3277 if (err)
3278 return err;
3279
29cbe68c
JB		 3280 wdev_lock(wdev);
3281 if (!wdev->mesh_id_len)
3282 err = -ENOLINK;
3283
3284 if (!err)
24bdd9f4 3285 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3286 mask, &cfg);
3287
3288 wdev_unlock(wdev);
3289
3290 return err;
93da9cc1 3291}
3292
f130347c
LR		 3293static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3294{
3295 struct sk_buff *msg;
3296 void *hdr = NULL;
3297 struct nlattr *nl_reg_rules;
3298 unsigned int i;
3299 int err = -EINVAL;
3300
a1794390 3301 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3302
3303 if (!cfg80211_regdomain)
3304 goto out;
3305
fd2120ca 3306 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3307 if (!msg) {
3308 err = -ENOBUFS;
3309 goto out;
3310 }
3311
3312 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3313 NL80211_CMD_GET_REG);
3314 if (!hdr)
efe1cf0c 3315 goto put_failure;
f130347c
LR		 3316
3317 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3318 cfg80211_regdomain->alpha2);
3319
3320 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3321 if (!nl_reg_rules)
3322 goto nla_put_failure;
3323
3324 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3325 struct nlattr *nl_reg_rule;
3326 const struct ieee80211_reg_rule *reg_rule;
3327 const struct ieee80211_freq_range *freq_range;
3328 const struct ieee80211_power_rule *power_rule;
3329
3330 reg_rule = &cfg80211_regdomain->reg_rules[i];
3331 freq_range = &reg_rule->freq_range;
3332 power_rule = &reg_rule->power_rule;
3333
3334 nl_reg_rule = nla_nest_start(msg, i);
3335 if (!nl_reg_rule)
3336 goto nla_put_failure;
3337
3338 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3339 reg_rule->flags);
3340 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3341 freq_range->start_freq_khz);
3342 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3343 freq_range->end_freq_khz);
3344 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3345 freq_range->max_bandwidth_khz);
3346 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3347 power_rule->max_antenna_gain);
3348 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3349 power_rule->max_eirp);
3350
3351 nla_nest_end(msg, nl_reg_rule);
3352 }
3353
3354 nla_nest_end(msg, nl_reg_rules);
3355
3356 genlmsg_end(msg, hdr);
134e6375 3357 err = genlmsg_reply(msg, info);
f130347c
LR		 3358 goto out;
3359
3360nla_put_failure:
3361 genlmsg_cancel(msg, hdr);
efe1cf0c 3362put_failure:
d080e275 3363 nlmsg_free(msg);
f130347c
LR		 3364 err = -EMSGSIZE;
3365out:
a1794390 3366 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3367 return err;
3368}
3369
b2e1b302
LR		 3370static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3371{
3372 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3373 struct nlattr *nl_reg_rule;
3374 char *alpha2 = NULL;
3375 int rem_reg_rules = 0, r = 0;
3376 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3377 struct ieee80211_regdomain *rd = NULL;
3378
3379 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3380 return -EINVAL;
3381
3382 if (!info->attrs[NL80211_ATTR_REG_RULES])
3383 return -EINVAL;
3384
3385 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3386
3387 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3388 rem_reg_rules) {
3389 num_rules++;
3390 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3391 return -EINVAL;
b2e1b302
LR		 3392 }
3393
61405e97
LR		 3394 mutex_lock(&cfg80211_mutex);
3395
d0e18f83
LR		 3396 if (!reg_is_valid_request(alpha2)) {
3397 r = -EINVAL;
3398 goto bad_reg;
3399 }
b2e1b302
LR		 3400
3401 size_of_regd = sizeof(struct ieee80211_regdomain) +
3402 (num_rules * sizeof(struct ieee80211_reg_rule));
3403
3404 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3405 if (!rd) {
3406 r = -ENOMEM;
3407 goto bad_reg;
3408 }
b2e1b302
LR		 3409
3410 rd->n_reg_rules = num_rules;
3411 rd->alpha2[0] = alpha2[0];
3412 rd->alpha2[1] = alpha2[1];
3413
3414 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3415 rem_reg_rules) {
3416 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3417 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3418 reg_rule_policy);
3419 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3420 if (r)
3421 goto bad_reg;
3422
3423 rule_idx++;
3424
d0e18f83
LR		 3425 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3426 r = -EINVAL;
b2e1b302 3427 goto bad_reg;
d0e18f83 3428 }
b2e1b302
LR		 3429 }
3430
3431 BUG_ON(rule_idx != num_rules);
3432
b2e1b302 3433 r = set_regdom(rd);
61405e97 3434
a1794390 3435 mutex_unlock(&cfg80211_mutex);
d0e18f83 3436
b2e1b302
LR		 3437 return r;
3438
d2372b31 3439 bad_reg:
61405e97 3440 mutex_unlock(&cfg80211_mutex);
b2e1b302 3441 kfree(rd);
d0e18f83 3442 return r;
b2e1b302
LR		 3443}
3444
83f5e2cf
JB		 3445static int validate_scan_freqs(struct nlattr *freqs)
3446{
3447 struct nlattr *attr1, *attr2;
3448 int n_channels = 0, tmp1, tmp2;
3449
3450 nla_for_each_nested(attr1, freqs, tmp1) {
3451 n_channels++;
3452 /*
3453 * Some hardware has a limited channel list for
3454 * scanning, and it is pretty much nonsensical
3455 * to scan for a channel twice, so disallow that
3456 * and don't require drivers to check that the
3457 * channel list they get isn't longer than what
3458 * they can scan, as long as they can scan all
3459 * the channels they registered at once.
3460 */
3461 nla_for_each_nested(attr2, freqs, tmp2)
3462 if (attr1 != attr2 &&
3463 nla_get_u32(attr1) == nla_get_u32(attr2))
3464 return 0;
3465 }
3466
3467 return n_channels;
3468}
3469
2a519311
JB		 3470static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3471{
4c476991
JB		 3472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3473 struct net_device *dev = info->user_ptr[1];
2a519311 3474 struct cfg80211_scan_request *request;
2a519311
JB		 3475 struct nlattr *attr;
3476 struct wiphy *wiphy;
83f5e2cf 3477 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3478 size_t ie_len;
2a519311 3479
f4a11bb0
JB		 3480 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3481 return -EINVAL;
3482
79c97e97 3483 wiphy = &rdev->wiphy;
2a519311 3484
4c476991
JB		 3485 if (!rdev->ops->scan)
3486 return -EOPNOTSUPP;
2a519311 3487
4c476991
JB		 3488 if (rdev->scan_req)
3489 return -EBUSY;
2a519311
JB		 3490
3491 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3492 n_channels = validate_scan_freqs(
3493 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3494 if (!n_channels)
3495 return -EINVAL;
2a519311 3496 } else {
34850ab2 3497 enum ieee80211_band band;
83f5e2cf
JB		 3498 n_channels = 0;
3499
2a519311
JB		 3500 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3501 if (wiphy->bands[band])
3502 n_channels += wiphy->bands[band]->n_channels;
3503 }
3504
3505 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3506 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3507 n_ssids++;
3508
4c476991
JB		 3509 if (n_ssids > wiphy->max_scan_ssids)
3510 return -EINVAL;
2a519311 3511
70692ad2
JM		 3512 if (info->attrs[NL80211_ATTR_IE])
3513 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3514 else
3515 ie_len = 0;
3516
4c476991
JB		 3517 if (ie_len > wiphy->max_scan_ie_len)
3518 return -EINVAL;
18a83659 3519
2a519311 3520 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3521 + sizeof(*request->ssids) * n_ssids
3522 + sizeof(*request->channels) * n_channels
70692ad2 3523 + ie_len, GFP_KERNEL);
4c476991
JB		 3524 if (!request)
3525 return -ENOMEM;
2a519311 3526
2a519311 3527 if (n_ssids)
5ba63533 3528 request->ssids = (void *)&request->channels[n_channels];
2a519311 3529 request->n_ssids = n_ssids;
70692ad2
JM		 3530 if (ie_len) {
3531 if (request->ssids)
3532 request->ie = (void *)(request->ssids + n_ssids);
3533 else
3534 request->ie = (void *)(request->channels + n_channels);
3535 }
2a519311 3536
584991dc 3537 i = 0;
2a519311
JB		 3538 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3539 /* user specified, bail out if channel not found */
2a519311 3540 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3541 struct ieee80211_channel *chan;
3542
3543 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3544
3545 if (!chan) {
2a519311
JB		 3546 err = -EINVAL;
3547 goto out_free;
3548 }
584991dc
JB		 3549
3550 /* ignore disabled channels */
3551 if (chan->flags & IEEE80211_CHAN_DISABLED)
3552 continue;
3553
3554 request->channels[i] = chan;
2a519311
JB		 3555 i++;
3556 }
3557 } else {
34850ab2
JB		 3558 enum ieee80211_band band;
3559
2a519311 3560 /* all channels */
2a519311
JB		 3561 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3562 int j;
3563 if (!wiphy->bands[band])
3564 continue;
3565 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3566 struct ieee80211_channel *chan;
3567
3568 chan = &wiphy->bands[band]->channels[j];
3569
3570 if (chan->flags & IEEE80211_CHAN_DISABLED)
3571 continue;
3572
3573 request->channels[i] = chan;
2a519311
JB		 3574 i++;
3575 }
3576 }
3577 }
3578
584991dc
JB		 3579 if (!i) {
3580 err = -EINVAL;
3581 goto out_free;
3582 }
3583
3584 request->n_channels = i;
3585
2a519311
JB		 3586 i = 0;
3587 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3588 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3589 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3590 err = -EINVAL;
3591 goto out_free;
3592 }
57a27e1d 3593 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3594 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3595 i++;
3596 }
3597 }
3598
70692ad2
JM		 3599 if (info->attrs[NL80211_ATTR_IE]) {
3600 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3601 memcpy((void *)request->ie,
3602 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3603 request->ie_len);
3604 }
3605
34850ab2 3606 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3607 if (wiphy->bands[i])
3608 request->rates[i] =
3609 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3610
3611 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3612 nla_for_each_nested(attr,
3613 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3614 tmp) {
3615 enum ieee80211_band band = nla_type(attr);
3616
84404623 3617 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3618 err = -EINVAL;
3619 goto out_free;
3620 }
3621 err = ieee80211_get_ratemask(wiphy->bands[band],
3622 nla_data(attr),
3623 nla_len(attr),
3624 &request->rates[band]);
3625 if (err)
3626 goto out_free;
3627 }
3628 }
3629
e9f935e3
RM		 3630 request->no_cck =
3631 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3632
463d0183 3633 request->dev = dev;
79c97e97 3634 request->wiphy = &rdev->wiphy;
2a519311 3635
79c97e97
JB		 3636 rdev->scan_req = request;
3637 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3638
463d0183 3639 if (!err) {
79c97e97 3640 nl80211_send_scan_start(rdev, dev);
463d0183 3641 dev_hold(dev);
4c476991 3642 } else {
2a519311 3643 out_free:
79c97e97 3644 rdev->scan_req = NULL;
2a519311
JB		 3645 kfree(request);
3646 }
3b85875a 3647
2a519311
JB		 3648 return err;
3649}
3650
807f8a8c
LC		 3651static int nl80211_start_sched_scan(struct sk_buff *skb,
3652 struct genl_info *info)
3653{
3654 struct cfg80211_sched_scan_request *request;
3655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3656 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3657 struct nlattr *attr;
3658 struct wiphy *wiphy;
a1f1c21c 3659 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3660 u32 interval;
807f8a8c
LC		 3661 enum ieee80211_band band;
3662 size_t ie_len;
a1f1c21c 3663 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3664
3665 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3666 !rdev->ops->sched_scan_start)
3667 return -EOPNOTSUPP;
3668
3669 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3670 return -EINVAL;
3671
bbe6ad6d
LC		 3672 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3673 return -EINVAL;
3674
3675 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3676 if (interval == 0)
3677 return -EINVAL;
3678
807f8a8c
LC		 3679 wiphy = &rdev->wiphy;
3680
3681 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3682 n_channels = validate_scan_freqs(
3683 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3684 if (!n_channels)
3685 return -EINVAL;
3686 } else {
3687 n_channels = 0;
3688
3689 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3690 if (wiphy->bands[band])
3691 n_channels += wiphy->bands[band]->n_channels;
3692 }
3693
3694 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3695 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3696 tmp)
3697 n_ssids++;
3698
93b6aa69 3699 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3700 return -EINVAL;
3701
a1f1c21c
LC		 3702 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3703 nla_for_each_nested(attr,
3704 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3705 tmp)
3706 n_match_sets++;
3707
3708 if (n_match_sets > wiphy->max_match_sets)
3709 return -EINVAL;
3710
807f8a8c
LC		 3711 if (info->attrs[NL80211_ATTR_IE])
3712 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3713 else
3714 ie_len = 0;
3715
5a865bad 3716 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3717 return -EINVAL;
3718
c10841ca
LC		 3719 mutex_lock(&rdev->sched_scan_mtx);
3720
3721 if (rdev->sched_scan_req) {
3722 err = -EINPROGRESS;
3723 goto out;
3724 }
3725
807f8a8c 3726 request = kzalloc(sizeof(*request)
a2cd43c5 3727 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3728 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3729 + sizeof(*request->channels) * n_channels
807f8a8c 3730 + ie_len, GFP_KERNEL);
c10841ca
LC		 3731 if (!request) {
3732 err = -ENOMEM;
3733 goto out;
3734 }
807f8a8c
LC		 3735
3736 if (n_ssids)
3737 request->ssids = (void *)&request->channels[n_channels];
3738 request->n_ssids = n_ssids;
3739 if (ie_len) {
3740 if (request->ssids)
3741 request->ie = (void *)(request->ssids + n_ssids);
3742 else
3743 request->ie = (void *)(request->channels + n_channels);
3744 }
3745
a1f1c21c
LC		 3746 if (n_match_sets) {
3747 if (request->ie)
3748 request->match_sets = (void *)(request->ie + ie_len);
3749 else if (request->ssids)
3750 request->match_sets =
3751 (void *)(request->ssids + n_ssids);
3752 else
3753 request->match_sets =
3754 (void *)(request->channels + n_channels);
3755 }
3756 request->n_match_sets = n_match_sets;
3757
807f8a8c
LC		 3758 i = 0;
3759 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3760 /* user specified, bail out if channel not found */
3761 nla_for_each_nested(attr,
3762 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3763 tmp) {
3764 struct ieee80211_channel *chan;
3765
3766 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3767
3768 if (!chan) {
3769 err = -EINVAL;
3770 goto out_free;
3771 }
3772
3773 /* ignore disabled channels */
3774 if (chan->flags & IEEE80211_CHAN_DISABLED)
3775 continue;
3776
3777 request->channels[i] = chan;
3778 i++;
3779 }
3780 } else {
3781 /* all channels */
3782 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3783 int j;
3784 if (!wiphy->bands[band])
3785 continue;
3786 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3787 struct ieee80211_channel *chan;
3788
3789 chan = &wiphy->bands[band]->channels[j];
3790
3791 if (chan->flags & IEEE80211_CHAN_DISABLED)
3792 continue;
3793
3794 request->channels[i] = chan;
3795 i++;
3796 }
3797 }
3798 }
3799
3800 if (!i) {
3801 err = -EINVAL;
3802 goto out_free;
3803 }
3804
3805 request->n_channels = i;
3806
3807 i = 0;
3808 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3809 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3810 tmp) {
57a27e1d 3811 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3812 err = -EINVAL;
3813 goto out_free;
3814 }
57a27e1d 3815 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3816 memcpy(request->ssids[i].ssid, nla_data(attr),
3817 nla_len(attr));
807f8a8c
LC		 3818 i++;
3819 }
3820 }
3821
a1f1c21c
LC		 3822 i = 0;
3823 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3824 nla_for_each_nested(attr,
3825 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3826 tmp) {
3827 struct nlattr *ssid;
3828
3829 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3830 nla_data(attr), nla_len(attr),
3831 nl80211_match_policy);
3832 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3833 if (ssid) {
3834 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3835 err = -EINVAL;
3836 goto out_free;
3837 }
3838 memcpy(request->match_sets[i].ssid.ssid,
3839 nla_data(ssid), nla_len(ssid));
3840 request->match_sets[i].ssid.ssid_len =
3841 nla_len(ssid);
3842 }
3843 i++;
3844 }
3845 }
3846
807f8a8c
LC		 3847 if (info->attrs[NL80211_ATTR_IE]) {
3848 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3849 memcpy((void *)request->ie,
3850 nla_data(info->attrs[NL80211_ATTR_IE]),
3851 request->ie_len);
3852 }
3853
3854 request->dev = dev;
3855 request->wiphy = &rdev->wiphy;
bbe6ad6d 3856 request->interval = interval;
807f8a8c
LC		 3857
3858 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3859 if (!err) {
3860 rdev->sched_scan_req = request;
3861 nl80211_send_sched_scan(rdev, dev,
3862 NL80211_CMD_START_SCHED_SCAN);
3863 goto out;
3864 }
3865
3866out_free:
3867 kfree(request);
3868out:
c10841ca 3869 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3870 return err;
3871}
3872
3873static int nl80211_stop_sched_scan(struct sk_buff *skb,
3874 struct genl_info *info)
3875{
3876 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3877 int err;
807f8a8c
LC		 3878
3879 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3880 !rdev->ops->sched_scan_stop)
3881 return -EOPNOTSUPP;
3882
c10841ca
LC		 3883 mutex_lock(&rdev->sched_scan_mtx);
3884 err = __cfg80211_stop_sched_scan(rdev, false);
3885 mutex_unlock(&rdev->sched_scan_mtx);
3886
3887 return err;
807f8a8c
LC		 3888}
3889
9720bb3a
JB		 3890static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3891 u32 seq, int flags,
2a519311 3892 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3893 struct wireless_dev *wdev,
3894 struct cfg80211_internal_bss *intbss)
2a519311 3895{
48ab905d 3896 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3897 void *hdr;
3898 struct nlattr *bss;
48ab905d
JB		 3899 int i;
3900
3901 ASSERT_WDEV_LOCK(wdev);
2a519311 3902
9720bb3a 3903 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 3904 NL80211_CMD_NEW_SCAN_RESULTS);
3905 if (!hdr)
3906 return -1;
3907
9720bb3a
JB		 3908 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3909
f5ea9120 3910 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3911 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3912
3913 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3914 if (!bss)
3915 goto nla_put_failure;
3916 if (!is_zero_ether_addr(res->bssid))
3917 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3918 if (res->information_elements && res->len_information_elements)
3919 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3920 res->len_information_elements,
3921 res->information_elements);
34a6eddb
JM		 3922 if (res->beacon_ies && res->len_beacon_ies &&
3923 res->beacon_ies != res->information_elements)
3924 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3925 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3926 if (res->tsf)
3927 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3928 if (res->beacon_interval)
3929 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3930 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3931 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3932 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3933 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3934
77965c97 3935 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3936 case CFG80211_SIGNAL_TYPE_MBM:
3937 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3938 break;
3939 case CFG80211_SIGNAL_TYPE_UNSPEC:
3940 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3941 break;
3942 default:
3943 break;
3944 }
3945
48ab905d 3946 switch (wdev->iftype) {
074ac8df 3947 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3948 case NL80211_IFTYPE_STATION:
3949 if (intbss == wdev->current_bss)
3950 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3951 NL80211_BSS_STATUS_ASSOCIATED);
3952 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3953 if (intbss != wdev->auth_bsses[i])
3954 continue;
3955 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3956 NL80211_BSS_STATUS_AUTHENTICATED);
3957 break;
3958 }
3959 break;
3960 case NL80211_IFTYPE_ADHOC:
3961 if (intbss == wdev->current_bss)
3962 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3963 NL80211_BSS_STATUS_IBSS_JOINED);
3964 break;
3965 default:
3966 break;
3967 }
3968
2a519311
JB		 3969 nla_nest_end(msg, bss);
3970
3971 return genlmsg_end(msg, hdr);
3972
3973 nla_put_failure:
3974 genlmsg_cancel(msg, hdr);
3975 return -EMSGSIZE;
3976}
3977
3978static int nl80211_dump_scan(struct sk_buff *skb,
3979 struct netlink_callback *cb)
3980{
48ab905d
JB		 3981 struct cfg80211_registered_device *rdev;
3982 struct net_device *dev;
2a519311 3983 struct cfg80211_internal_bss *scan;
48ab905d 3984 struct wireless_dev *wdev;
2a519311
JB		 3985 int start = cb->args[1], idx = 0;
3986 int err;
3987
67748893
JB		 3988 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3989 if (err)
3990 return err;
2a519311 3991
48ab905d 3992 wdev = dev->ieee80211_ptr;
2a519311 3993
48ab905d
JB		 3994 wdev_lock(wdev);
3995 spin_lock_bh(&rdev->bss_lock);
3996 cfg80211_bss_expire(rdev);
3997
9720bb3a
JB		 3998 cb->seq = rdev->bss_generation;
3999
48ab905d 4000 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4001 if (++idx <= start)
4002 continue;
9720bb3a 4003 if (nl80211_send_bss(skb, cb,
2a519311 4004 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4005 rdev, wdev, scan) < 0) {
2a519311 4006 idx--;
67748893 4007 break;
2a519311
JB		 4008 }
4009 }
4010
48ab905d
JB		 4011 spin_unlock_bh(&rdev->bss_lock);
4012 wdev_unlock(wdev);
2a519311
JB		 4013
4014 cb->args[1] = idx;
67748893 4015 nl80211_finish_netdev_dump(rdev);
2a519311 4016
67748893 4017 return skb->len;
2a519311
JB		 4018}
4019
61fa713c
HS		 4020static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4021 int flags, struct net_device *dev,
4022 struct survey_info *survey)
4023{
4024 void *hdr;
4025 struct nlattr *infoattr;
4026
61fa713c
HS		 4027 hdr = nl80211hdr_put(msg, pid, seq, flags,
4028 NL80211_CMD_NEW_SURVEY_RESULTS);
4029 if (!hdr)
4030 return -ENOMEM;
4031
4032 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4033
4034 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4035 if (!infoattr)
4036 goto nla_put_failure;
4037
4038 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4039 survey->channel->center_freq);
4040 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4041 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4042 survey->noise);
17e5a808
FF		 4043 if (survey->filled & SURVEY_INFO_IN_USE)
4044 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4045 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4046 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4047 survey->channel_time);
4048 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4049 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4050 survey->channel_time_busy);
4051 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4052 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4053 survey->channel_time_ext_busy);
4054 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4055 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4056 survey->channel_time_rx);
4057 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4058 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4059 survey->channel_time_tx);
61fa713c
HS		 4060
4061 nla_nest_end(msg, infoattr);
4062
4063 return genlmsg_end(msg, hdr);
4064
4065 nla_put_failure:
4066 genlmsg_cancel(msg, hdr);
4067 return -EMSGSIZE;
4068}
4069
4070static int nl80211_dump_survey(struct sk_buff *skb,
4071 struct netlink_callback *cb)
4072{
4073 struct survey_info survey;
4074 struct cfg80211_registered_device *dev;
4075 struct net_device *netdev;
61fa713c
HS		 4076 int survey_idx = cb->args[1];
4077 int res;
4078
67748893
JB		 4079 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4080 if (res)
4081 return res;
61fa713c
HS		 4082
4083 if (!dev->ops->dump_survey) {
4084 res = -EOPNOTSUPP;
4085 goto out_err;
4086 }
4087
4088 while (1) {
180cdc79
LR		 4089 struct ieee80211_channel *chan;
4090
61fa713c
HS		 4091 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4092 &survey);
4093 if (res == -ENOENT)
4094 break;
4095 if (res)
4096 goto out_err;
4097
180cdc79
LR		 4098 /* Survey without a channel doesn't make sense */
4099 if (!survey.channel) {
4100 res = -EINVAL;
4101 goto out;
4102 }
4103
4104 chan = ieee80211_get_channel(&dev->wiphy,
4105 survey.channel->center_freq);
4106 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4107 survey_idx++;
4108 continue;
4109 }
4110
61fa713c
HS		 4111 if (nl80211_send_survey(skb,
4112 NETLINK_CB(cb->skb).pid,
4113 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4114 netdev,
4115 &survey) < 0)
4116 goto out;
4117 survey_idx++;
4118 }
4119
4120 out:
4121 cb->args[1] = survey_idx;
4122 res = skb->len;
4123 out_err:
67748893 4124 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4125 return res;
4126}
4127
255e737e
JM		 4128static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4129{
b23aa676
SO		 4130 return auth_type <= NL80211_AUTHTYPE_MAX;
4131}
4132
4133static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4134{
4135 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4136 NL80211_WPA_VERSION_2));
4137}
4138
636a5d36
JM		 4139static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4140{
4c476991
JB		 4141 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4142 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4143 struct ieee80211_channel *chan;
4144 const u8 *bssid, *ssid, *ie = NULL;
4145 int err, ssid_len, ie_len = 0;
4146 enum nl80211_auth_type auth_type;
fffd0934 4147 struct key_parse key;
d5cdfacb 4148 bool local_state_change;
636a5d36 4149
f4a11bb0
JB		 4150 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4151 return -EINVAL;
4152
4153 if (!info->attrs[NL80211_ATTR_MAC])
4154 return -EINVAL;
4155
1778092e
JM		 4156 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4157 return -EINVAL;
4158
19957bb3
JB		 4159 if (!info->attrs[NL80211_ATTR_SSID])
4160 return -EINVAL;
4161
4162 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4163 return -EINVAL;
4164
fffd0934
JB		 4165 err = nl80211_parse_key(info, &key);
4166 if (err)
4167 return err;
4168
4169 if (key.idx >= 0) {
e31b8213
JB		 4170 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4171 return -EINVAL;
fffd0934
JB		 4172 if (!key.p.key || !key.p.key_len)
4173 return -EINVAL;
4174 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4175 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4176 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4177 key.p.key_len != WLAN_KEY_LEN_WEP104))
4178 return -EINVAL;
4179 if (key.idx > 4)
4180 return -EINVAL;
4181 } else {
4182 key.p.key_len = 0;
4183 key.p.key = NULL;
4184 }
4185
afea0b7a
JB		 4186 if (key.idx >= 0) {
4187 int i;
4188 bool ok = false;
4189 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4190 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4191 ok = true;
4192 break;
4193 }
4194 }
4c476991
JB		 4195 if (!ok)
4196 return -EINVAL;
afea0b7a
JB		 4197 }
4198
4c476991
JB		 4199 if (!rdev->ops->auth)
4200 return -EOPNOTSUPP;
636a5d36 4201
074ac8df 4202 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4203 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4204 return -EOPNOTSUPP;
eec60b03 4205
19957bb3 4206 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4207 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4208 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4209 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4210 return -EINVAL;
636a5d36 4211
19957bb3
JB		 4212 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4213 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4214
4215 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4216 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4217 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4218 }
4219
19957bb3 4220 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4221 if (!nl80211_valid_auth_type(auth_type))
4222 return -EINVAL;
636a5d36 4223
d5cdfacb
JM		 4224 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4225
4c476991
JB		 4226 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4227 ssid, ssid_len, ie, ie_len,
4228 key.p.key, key.p.key_len, key.idx,
4229 local_state_change);
636a5d36
JM		 4230}
4231
c0692b8f
JB		 4232static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4233 struct genl_info *info,
3dc27d25
JB		 4234 struct cfg80211_crypto_settings *settings,
4235 int cipher_limit)
b23aa676 4236{
c0b2bbd8
JB		 4237 memset(settings, 0, sizeof(*settings));
4238
b23aa676
SO		 4239 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4240
c0692b8f
JB		 4241 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4242 u16 proto;
4243 proto = nla_get_u16(
4244 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4245 settings->control_port_ethertype = cpu_to_be16(proto);
4246 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4247 proto != ETH_P_PAE)
4248 return -EINVAL;
4249 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4250 settings->control_port_no_encrypt = true;
4251 } else
4252 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4253
b23aa676
SO		 4254 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4255 void *data;
4256 int len, i;
4257
4258 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4259 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4260 settings->n_ciphers_pairwise = len / sizeof(u32);
4261
4262 if (len % sizeof(u32))
4263 return -EINVAL;
4264
3dc27d25 4265 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4266 return -EINVAL;
4267
4268 memcpy(settings->ciphers_pairwise, data, len);
4269
4270 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4271 if (!cfg80211_supported_cipher_suite(
4272 &rdev->wiphy,
b23aa676
SO		 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]);
38ba3c57
JM		 4280 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4281 settings->cipher_group))
b23aa676
SO		 4282 return -EINVAL;
4283 }
4284
4285 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4286 settings->wpa_versions =
4287 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4288 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4289 return -EINVAL;
4290 }
4291
4292 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4293 void *data;
6d30240e 4294 int len;
b23aa676
SO		 4295
4296 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4297 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4298 settings->n_akm_suites = len / sizeof(u32);
4299
4300 if (len % sizeof(u32))
4301 return -EINVAL;
4302
1b9ca027
JM		 4303 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4304 return -EINVAL;
4305
b23aa676 4306 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 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 4524
39193498 4525 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4526 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4527
4528 if (!is_valid_ether_addr(ibss.bssid))
4529 return -EINVAL;
4530 }
04a773ad
JB		 4531 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4532 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4533
4534 if (info->attrs[NL80211_ATTR_IE]) {
4535 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4536 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4537 }
4538
4539 ibss.channel = ieee80211_get_channel(wiphy,
4540 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4541 if (!ibss.channel ||
4542 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4543 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4544 return -EINVAL;
04a773ad
JB		 4545
4546 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4547 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4548
fbd2c8dc
TP		 4549 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4550 u8 *rates =
4551 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4552 int n_rates =
4553 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4554 struct ieee80211_supported_band *sband =
4555 wiphy->bands[ibss.channel->band];
34850ab2 4556 int err;
fbd2c8dc 4557
34850ab2
JB		 4558 err = ieee80211_get_ratemask(sband, rates, n_rates,
4559 &ibss.basic_rates);
4560 if (err)
4561 return err;
fbd2c8dc 4562 }
dd5b4cc7
FF		 4563
4564 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4565 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4566 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4567 return -EINVAL;
fbd2c8dc 4568
4c476991
JB		 4569 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4570 connkeys = nl80211_parse_connkeys(rdev,
4571 info->attrs[NL80211_ATTR_KEYS]);
4572 if (IS_ERR(connkeys))
4573 return PTR_ERR(connkeys);
4574 }
04a773ad 4575
4c476991 4576 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4577 if (err)
4578 kfree(connkeys);
04a773ad
JB		 4579 return err;
4580}
4581
4582static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4583{
4c476991
JB		 4584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4585 struct net_device *dev = info->user_ptr[1];
04a773ad 4586
4c476991
JB		 4587 if (!rdev->ops->leave_ibss)
4588 return -EOPNOTSUPP;
04a773ad 4589
4c476991
JB		 4590 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4591 return -EOPNOTSUPP;
04a773ad 4592
4c476991 4593 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4594}
4595
aff89a9b
JB		 4596#ifdef CONFIG_NL80211_TESTMODE
4597static struct genl_multicast_group nl80211_testmode_mcgrp = {
4598 .name = "testmode",
4599};
4600
4601static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4602{
4c476991 4603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4604 int err;
4605
4606 if (!info->attrs[NL80211_ATTR_TESTDATA])
4607 return -EINVAL;
4608
aff89a9b
JB		 4609 err = -EOPNOTSUPP;
4610 if (rdev->ops->testmode_cmd) {
4611 rdev->testmode_info = info;
4612 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4613 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4614 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4615 rdev->testmode_info = NULL;
4616 }
4617
aff89a9b
JB		 4618 return err;
4619}
4620
71063f0e
WYG		 4621static int nl80211_testmode_dump(struct sk_buff *skb,
4622 struct netlink_callback *cb)
4623{
4624 struct cfg80211_registered_device *dev;
4625 int err;
4626 long phy_idx;
4627 void *data = NULL;
4628 int data_len = 0;
4629
4630 if (cb->args[0]) {
4631 /*
4632 * 0 is a valid index, but not valid for args[0],
4633 * so we need to offset by 1.
4634 */
4635 phy_idx = cb->args[0] - 1;
4636 } else {
4637 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4638 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4639 nl80211_policy);
4640 if (err)
4641 return err;
4642 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4643 return -EINVAL;
4644 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4645 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4646 cb->args[1] =
4647 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4648 }
4649
4650 if (cb->args[1]) {
4651 data = nla_data((void *)cb->args[1]);
4652 data_len = nla_len((void *)cb->args[1]);
4653 }
4654
4655 mutex_lock(&cfg80211_mutex);
4656 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4657 if (!dev) {
4658 mutex_unlock(&cfg80211_mutex);
4659 return -ENOENT;
4660 }
4661 cfg80211_lock_rdev(dev);
4662 mutex_unlock(&cfg80211_mutex);
4663
4664 if (!dev->ops->testmode_dump) {
4665 err = -EOPNOTSUPP;
4666 goto out_err;
4667 }
4668
4669 while (1) {
4670 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4671 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4672 NL80211_CMD_TESTMODE);
4673 struct nlattr *tmdata;
4674
4675 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4676 genlmsg_cancel(skb, hdr);
4677 break;
4678 }
4679
4680 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4681 if (!tmdata) {
4682 genlmsg_cancel(skb, hdr);
4683 break;
4684 }
4685 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4686 data, data_len);
4687 nla_nest_end(skb, tmdata);
4688
4689 if (err == -ENOBUFS || err == -ENOENT) {
4690 genlmsg_cancel(skb, hdr);
4691 break;
4692 } else if (err) {
4693 genlmsg_cancel(skb, hdr);
4694 goto out_err;
4695 }
4696
4697 genlmsg_end(skb, hdr);
4698 }
4699
4700 err = skb->len;
4701 /* see above */
4702 cb->args[0] = phy_idx + 1;
4703 out_err:
4704 cfg80211_unlock_rdev(dev);
4705 return err;
4706}
4707
aff89a9b
JB		 4708static struct sk_buff *
4709__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4710 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4711{
4712 struct sk_buff *skb;
4713 void *hdr;
4714 struct nlattr *data;
4715
4716 skb = nlmsg_new(approxlen + 100, gfp);
4717 if (!skb)
4718 return NULL;
4719
4720 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4721 if (!hdr) {
4722 kfree_skb(skb);
4723 return NULL;
4724 }
4725
4726 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4727 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4728
4729 ((void **)skb->cb)[0] = rdev;
4730 ((void **)skb->cb)[1] = hdr;
4731 ((void **)skb->cb)[2] = data;
4732
4733 return skb;
4734
4735 nla_put_failure:
4736 kfree_skb(skb);
4737 return NULL;
4738}
4739
4740struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4741 int approxlen)
4742{
4743 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4744
4745 if (WARN_ON(!rdev->testmode_info))
4746 return NULL;
4747
4748 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4749 rdev->testmode_info->snd_pid,
4750 rdev->testmode_info->snd_seq,
4751 GFP_KERNEL);
4752}
4753EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4754
4755int cfg80211_testmode_reply(struct sk_buff *skb)
4756{
4757 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4758 void *hdr = ((void **)skb->cb)[1];
4759 struct nlattr *data = ((void **)skb->cb)[2];
4760
4761 if (WARN_ON(!rdev->testmode_info)) {
4762 kfree_skb(skb);
4763 return -EINVAL;
4764 }
4765
4766 nla_nest_end(skb, data);
4767 genlmsg_end(skb, hdr);
4768 return genlmsg_reply(skb, rdev->testmode_info);
4769}
4770EXPORT_SYMBOL(cfg80211_testmode_reply);
4771
4772struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4773 int approxlen, gfp_t gfp)
4774{
4775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4776
4777 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4778}
4779EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4780
4781void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4782{
4783 void *hdr = ((void **)skb->cb)[1];
4784 struct nlattr *data = ((void **)skb->cb)[2];
4785
4786 nla_nest_end(skb, data);
4787 genlmsg_end(skb, hdr);
4788 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4789}
4790EXPORT_SYMBOL(cfg80211_testmode_event);
4791#endif
4792
b23aa676
SO		 4793static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4794{
4c476991
JB		 4795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4796 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4797 struct cfg80211_connect_params connect;
4798 struct wiphy *wiphy;
fffd0934 4799 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4800 int err;
4801
4802 memset(&connect, 0, sizeof(connect));
4803
4804 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4805 return -EINVAL;
4806
4807 if (!info->attrs[NL80211_ATTR_SSID] ||
4808 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4809 return -EINVAL;
4810
4811 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4812 connect.auth_type =
4813 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4814 if (!nl80211_valid_auth_type(connect.auth_type))
4815 return -EINVAL;
4816 } else
4817 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4818
4819 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4820
c0692b8f 4821 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4822 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4823 if (err)
4824 return err;
b23aa676 4825
074ac8df 4826 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4827 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4828 return -EOPNOTSUPP;
b23aa676 4829
79c97e97 4830 wiphy = &rdev->wiphy;
b23aa676 4831
b23aa676
SO		 4832 if (info->attrs[NL80211_ATTR_MAC])
4833 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4834 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4835 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4836
4837 if (info->attrs[NL80211_ATTR_IE]) {
4838 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4839 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4840 }
4841
4842 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4843 connect.channel =
4844 ieee80211_get_channel(wiphy,
4845 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4846 if (!connect.channel ||
4c476991
JB		 4847 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4848 return -EINVAL;
b23aa676
SO		 4849 }
4850
fffd0934
JB		 4851 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4852 connkeys = nl80211_parse_connkeys(rdev,
4853 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4854 if (IS_ERR(connkeys))
4855 return PTR_ERR(connkeys);
fffd0934
JB		 4856 }
4857
4858 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4859 if (err)
4860 kfree(connkeys);
b23aa676
SO		 4861 return err;
4862}
4863
4864static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4865{
4c476991
JB		 4866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4867 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4868 u16 reason;
4869
4870 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4871 reason = WLAN_REASON_DEAUTH_LEAVING;
4872 else
4873 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4874
4875 if (reason == 0)
4876 return -EINVAL;
4877
074ac8df 4878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4879 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4880 return -EOPNOTSUPP;
b23aa676 4881
4c476991 4882 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4883}
4884
463d0183
JB		 4885static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4886{
4c476991 4887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4888 struct net *net;
4889 int err;
4890 u32 pid;
4891
4892 if (!info->attrs[NL80211_ATTR_PID])
4893 return -EINVAL;
4894
4895 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4896
463d0183 4897 net = get_net_ns_by_pid(pid);
4c476991
JB		 4898 if (IS_ERR(net))
4899 return PTR_ERR(net);
463d0183
JB		 4900
4901 err = 0;
4902
4903 /* check if anything to do */
4c476991
JB		 4904 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4905 err = cfg80211_switch_netns(rdev, net);
463d0183 4906
463d0183 4907 put_net(net);
463d0183
JB		 4908 return err;
4909}
4910
67fbb16b
SO		 4911static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4912{
4c476991 4913 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4914 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4915 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4916 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4917 struct cfg80211_pmksa pmksa;
4918
4919 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4920
4921 if (!info->attrs[NL80211_ATTR_MAC])
4922 return -EINVAL;
4923
4924 if (!info->attrs[NL80211_ATTR_PMKID])
4925 return -EINVAL;
4926
67fbb16b
SO		 4927 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4928 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4929
074ac8df 4930 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4932 return -EOPNOTSUPP;
67fbb16b
SO		 4933
4934 switch (info->genlhdr->cmd) {
4935 case NL80211_CMD_SET_PMKSA:
4936 rdev_ops = rdev->ops->set_pmksa;
4937 break;
4938 case NL80211_CMD_DEL_PMKSA:
4939 rdev_ops = rdev->ops->del_pmksa;
4940 break;
4941 default:
4942 WARN_ON(1);
4943 break;
4944 }
4945
4c476991
JB		 4946 if (!rdev_ops)
4947 return -EOPNOTSUPP;
67fbb16b 4948
4c476991 4949 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4950}
4951
4952static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4953{
4c476991
JB		 4954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4955 struct net_device *dev = info->user_ptr[1];
67fbb16b 4956
074ac8df 4957 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4958 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4959 return -EOPNOTSUPP;
67fbb16b 4960
4c476991
JB		 4961 if (!rdev->ops->flush_pmksa)
4962 return -EOPNOTSUPP;
67fbb16b 4963
4c476991 4964 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 4965}
4966
9588bbd5
JM		 4967static int nl80211_remain_on_channel(struct sk_buff *skb,
4968 struct genl_info *info)
4969{
4c476991
JB		 4970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4971 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 4972 struct ieee80211_channel *chan;
4973 struct sk_buff *msg;
4974 void *hdr;
4975 u64 cookie;
4976 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4977 u32 freq, duration;
4978 int err;
4979
4980 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4981 !info->attrs[NL80211_ATTR_DURATION])
4982 return -EINVAL;
4983
4984 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4985
4986 /*
4987 * We should be on that channel for at least one jiffie,
4988 * and more than 5 seconds seems excessive.
4989 */
a293911d
JB		 4990 if (!duration || !msecs_to_jiffies(duration) ||
4991 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 4992 return -EINVAL;
4993
4c476991
JB		 4994 if (!rdev->ops->remain_on_channel)
4995 return -EOPNOTSUPP;
9588bbd5 4996
9588bbd5
JM		 4997 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4998 channel_type = nla_get_u32(
4999 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5000 if (channel_type != NL80211_CHAN_NO_HT &&
5001 channel_type != NL80211_CHAN_HT20 &&
5002 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5003 channel_type != NL80211_CHAN_HT40MINUS)
5004 return -EINVAL;
9588bbd5
JM		 5005 }
5006
5007 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5008 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5009 if (chan == NULL)
5010 return -EINVAL;
9588bbd5
JM		 5011
5012 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5013 if (!msg)
5014 return -ENOMEM;
9588bbd5
JM		 5015
5016 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5017 NL80211_CMD_REMAIN_ON_CHANNEL);
5018
5019 if (IS_ERR(hdr)) {
5020 err = PTR_ERR(hdr);
5021 goto free_msg;
5022 }
5023
5024 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5025 channel_type, duration, &cookie);
5026
5027 if (err)
5028 goto free_msg;
5029
5030 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5031
5032 genlmsg_end(msg, hdr);
4c476991
JB		 5033
5034 return genlmsg_reply(msg, info);
9588bbd5
JM		 5035
5036 nla_put_failure:
5037 err = -ENOBUFS;
5038 free_msg:
5039 nlmsg_free(msg);
9588bbd5
JM		 5040 return err;
5041}
5042
5043static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5044 struct genl_info *info)
5045{
4c476991
JB		 5046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5047 struct net_device *dev = info->user_ptr[1];
9588bbd5 5048 u64 cookie;
9588bbd5
JM		 5049
5050 if (!info->attrs[NL80211_ATTR_COOKIE])
5051 return -EINVAL;
5052
4c476991
JB		 5053 if (!rdev->ops->cancel_remain_on_channel)
5054 return -EOPNOTSUPP;
9588bbd5 5055
9588bbd5
JM		 5056 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5057
4c476991 5058 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5059}
5060
13ae75b1
JM		 5061static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5062 u8 *rates, u8 rates_len)
5063{
5064 u8 i;
5065 u32 mask = 0;
5066
5067 for (i = 0; i < rates_len; i++) {
5068 int rate = (rates[i] & 0x7f) * 5;
5069 int ridx;
5070 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5071 struct ieee80211_rate *srate =
5072 &sband->bitrates[ridx];
5073 if (rate == srate->bitrate) {
5074 mask |= 1 << ridx;
5075 break;
5076 }
5077 }
5078 if (ridx == sband->n_bitrates)
5079 return 0; /* rate not found */
5080 }
5081
5082 return mask;
5083}
5084
b54452b0 5085static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5086 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5087 .len = NL80211_MAX_SUPP_RATES },
5088};
5089
5090static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5091 struct genl_info *info)
5092{
5093 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5095 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5096 int rem, i;
5097 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5098 struct nlattr *tx_rates;
5099 struct ieee80211_supported_band *sband;
5100
5101 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5102 return -EINVAL;
5103
4c476991
JB		 5104 if (!rdev->ops->set_bitrate_mask)
5105 return -EOPNOTSUPP;
13ae75b1
JM		 5106
5107 memset(&mask, 0, sizeof(mask));
5108 /* Default to all rates enabled */
5109 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5110 sband = rdev->wiphy.bands[i];
5111 mask.control[i].legacy =
5112 sband ? (1 << sband->n_bitrates) - 1 : 0;
5113 }
5114
5115 /*
5116 * The nested attribute uses enum nl80211_band as the index. This maps
5117 * directly to the enum ieee80211_band values used in cfg80211.
5118 */
5119 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5120 {
5121 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5122 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5123 return -EINVAL;
13ae75b1 5124 sband = rdev->wiphy.bands[band];
4c476991
JB		 5125 if (sband == NULL)
5126 return -EINVAL;
13ae75b1
JM		 5127 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5128 nla_len(tx_rates), nl80211_txattr_policy);
5129 if (tb[NL80211_TXRATE_LEGACY]) {
5130 mask.control[band].legacy = rateset_to_mask(
5131 sband,
5132 nla_data(tb[NL80211_TXRATE_LEGACY]),
5133 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5134 if (mask.control[band].legacy == 0)
5135 return -EINVAL;
13ae75b1
JM		 5136 }
5137 }
5138
4c476991 5139 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5140}
5141
2e161f78 5142static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5143{
4c476991
JB		 5144 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5145 struct net_device *dev = info->user_ptr[1];
2e161f78 5146 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5147
5148 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5149 return -EINVAL;
5150
2e161f78
JB		 5151 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5152 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5153
9d38d85d 5154 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5157 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5158 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5159 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5160 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5161 return -EOPNOTSUPP;
026331c4
JM		 5162
5163 /* not much point in registering if we can't reply */
4c476991
JB		 5164 if (!rdev->ops->mgmt_tx)
5165 return -EOPNOTSUPP;
026331c4 5166
4c476991 5167 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5168 frame_type,
026331c4
JM		 5169 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5170 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5171}
5172
2e161f78 5173static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5174{
4c476991
JB		 5175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5176 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5177 struct ieee80211_channel *chan;
5178 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5179 bool channel_type_valid = false;
026331c4
JM		 5180 u32 freq;
5181 int err;
5182 void *hdr;
5183 u64 cookie;
5184 struct sk_buff *msg;
f7ca38df
JB		 5185 unsigned int wait = 0;
5186 bool offchan;
e9f935e3 5187 bool no_cck;
026331c4
JM		 5188
5189 if (!info->attrs[NL80211_ATTR_FRAME] ||
5190 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5191 return -EINVAL;
5192
4c476991
JB		 5193 if (!rdev->ops->mgmt_tx)
5194 return -EOPNOTSUPP;
026331c4 5195
9d38d85d 5196 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5197 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5198 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5199 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5200 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5202 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5203 return -EOPNOTSUPP;
026331c4 5204
f7ca38df
JB		 5205 if (info->attrs[NL80211_ATTR_DURATION]) {
5206 if (!rdev->ops->mgmt_tx_cancel_wait)
5207 return -EINVAL;
5208 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5209 }
5210
026331c4
JM		 5211 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5212 channel_type = nla_get_u32(
5213 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5214 if (channel_type != NL80211_CHAN_NO_HT &&
5215 channel_type != NL80211_CHAN_HT20 &&
5216 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5217 channel_type != NL80211_CHAN_HT40MINUS)
5218 return -EINVAL;
252aa631 5219 channel_type_valid = true;
026331c4
JM		 5220 }
5221
f7ca38df
JB		 5222 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5223
e9f935e3
RM		 5224 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5225
026331c4
JM		 5226 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5227 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5228 if (chan == NULL)
5229 return -EINVAL;
026331c4
JM		 5230
5231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5232 if (!msg)
5233 return -ENOMEM;
026331c4
JM		 5234
5235 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 5236 NL80211_CMD_FRAME);
026331c4
JM		 5237
5238 if (IS_ERR(hdr)) {
5239 err = PTR_ERR(hdr);
5240 goto free_msg;
5241 }
f7ca38df
JB		 5242 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5243 channel_type_valid, wait,
2e161f78
JB		 5244 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5245 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e9f935e3 5246 no_cck, &cookie);
026331c4
JM		 5247 if (err)
5248 goto free_msg;
5249
5250 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5251
5252 genlmsg_end(msg, hdr);
4c476991 5253 return genlmsg_reply(msg, info);
026331c4
JM		 5254
5255 nla_put_failure:
5256 err = -ENOBUFS;
5257 free_msg:
5258 nlmsg_free(msg);
026331c4
JM		 5259 return err;
5260}
5261
f7ca38df
JB		 5262static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5263{
5264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5265 struct net_device *dev = info->user_ptr[1];
5266 u64 cookie;
5267
5268 if (!info->attrs[NL80211_ATTR_COOKIE])
5269 return -EINVAL;
5270
5271 if (!rdev->ops->mgmt_tx_cancel_wait)
5272 return -EOPNOTSUPP;
5273
5274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5277 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5278 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5279 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5280 return -EOPNOTSUPP;
5281
5282 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5283
5284 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5285}
5286
ffb9eb3d
KV		 5287static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5288{
4c476991 5289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5290 struct wireless_dev *wdev;
4c476991 5291 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5292 u8 ps_state;
5293 bool state;
5294 int err;
5295
4c476991
JB		 5296 if (!info->attrs[NL80211_ATTR_PS_STATE])
5297 return -EINVAL;
ffb9eb3d
KV		 5298
5299 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5300
4c476991
JB		 5301 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5302 return -EINVAL;
ffb9eb3d
KV		 5303
5304 wdev = dev->ieee80211_ptr;
5305
4c476991
JB		 5306 if (!rdev->ops->set_power_mgmt)
5307 return -EOPNOTSUPP;
ffb9eb3d
KV		 5308
5309 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5310
5311 if (state == wdev->ps)
4c476991 5312 return 0;
ffb9eb3d 5313
4c476991
JB		 5314 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5315 wdev->ps_timeout);
5316 if (!err)
5317 wdev->ps = state;
ffb9eb3d
KV		 5318 return err;
5319}
5320
5321static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5322{
4c476991 5323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5324 enum nl80211_ps_state ps_state;
5325 struct wireless_dev *wdev;
4c476991 5326 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5327 struct sk_buff *msg;
5328 void *hdr;
5329 int err;
5330
ffb9eb3d
KV		 5331 wdev = dev->ieee80211_ptr;
5332
4c476991
JB		 5333 if (!rdev->ops->set_power_mgmt)
5334 return -EOPNOTSUPP;
ffb9eb3d
KV		 5335
5336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5337 if (!msg)
5338 return -ENOMEM;
ffb9eb3d
KV		 5339
5340 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5341 NL80211_CMD_GET_POWER_SAVE);
5342 if (!hdr) {
4c476991 5343 err = -ENOBUFS;
ffb9eb3d
KV		 5344 goto free_msg;
5345 }
5346
5347 if (wdev->ps)
5348 ps_state = NL80211_PS_ENABLED;
5349 else
5350 ps_state = NL80211_PS_DISABLED;
5351
5352 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5353
5354 genlmsg_end(msg, hdr);
4c476991 5355 return genlmsg_reply(msg, info);
ffb9eb3d 5356
4c476991 5357 nla_put_failure:
ffb9eb3d 5358 err = -ENOBUFS;
4c476991 5359 free_msg:
ffb9eb3d 5360 nlmsg_free(msg);
ffb9eb3d
KV		 5361 return err;
5362}
5363
d6dc1a38
JO		 5364static struct nla_policy
5365nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5366 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5367 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5368 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5369};
5370
5371static int nl80211_set_cqm_rssi(struct genl_info *info,
5372 s32 threshold, u32 hysteresis)
5373{
4c476991 5374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5375 struct wireless_dev *wdev;
4c476991 5376 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5377
5378 if (threshold > 0)
5379 return -EINVAL;
5380
d6dc1a38
JO		 5381 wdev = dev->ieee80211_ptr;
5382
4c476991
JB		 5383 if (!rdev->ops->set_cqm_rssi_config)
5384 return -EOPNOTSUPP;
d6dc1a38 5385
074ac8df 5386 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5387 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5388 return -EOPNOTSUPP;
d6dc1a38 5389
4c476991
JB		 5390 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5391 threshold, hysteresis);
d6dc1a38
JO		 5392}
5393
5394static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5395{
5396 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5397 struct nlattr *cqm;
5398 int err;
5399
5400 cqm = info->attrs[NL80211_ATTR_CQM];
5401 if (!cqm) {
5402 err = -EINVAL;
5403 goto out;
5404 }
5405
5406 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5407 nl80211_attr_cqm_policy);
5408 if (err)
5409 goto out;
5410
5411 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5412 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5413 s32 threshold;
5414 u32 hysteresis;
5415 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5416 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5417 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5418 } else
5419 err = -EINVAL;
5420
5421out:
5422 return err;
5423}
5424
29cbe68c
JB		 5425static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5426{
5427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5428 struct net_device *dev = info->user_ptr[1];
5429 struct mesh_config cfg;
c80d545d 5430 struct mesh_setup setup;
29cbe68c
JB		 5431 int err;
5432
5433 /* start with default */
5434 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5435 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5436
24bdd9f4 5437 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5438 /* and parse parameters if given */
24bdd9f4 5439 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5440 if (err)
5441 return err;
5442 }
5443
5444 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5445 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5446 return -EINVAL;
5447
c80d545d
JC		 5448 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5449 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5450
5451 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5452 /* parse additional setup parameters if given */
5453 err = nl80211_parse_mesh_setup(info, &setup);
5454 if (err)
5455 return err;
5456 }
5457
5458 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5459}
5460
5461static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5462{
5463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5464 struct net_device *dev = info->user_ptr[1];
5465
5466 return cfg80211_leave_mesh(rdev, dev);
5467}
5468
ff1b6e69
JB		 5469static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5470{
5471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5472 struct sk_buff *msg;
5473 void *hdr;
5474
5475 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5476 return -EOPNOTSUPP;
5477
5478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5479 if (!msg)
5480 return -ENOMEM;
5481
5482 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5483 NL80211_CMD_GET_WOWLAN);
5484 if (!hdr)
5485 goto nla_put_failure;
5486
5487 if (rdev->wowlan) {
5488 struct nlattr *nl_wowlan;
5489
5490 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5491 if (!nl_wowlan)
5492 goto nla_put_failure;
5493
5494 if (rdev->wowlan->any)
5495 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5496 if (rdev->wowlan->disconnect)
5497 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5498 if (rdev->wowlan->magic_pkt)
5499 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5500 if (rdev->wowlan->gtk_rekey_failure)
5501 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5502 if (rdev->wowlan->eap_identity_req)
5503 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5504 if (rdev->wowlan->four_way_handshake)
5505 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5506 if (rdev->wowlan->rfkill_release)
5507 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5508 if (rdev->wowlan->n_patterns) {
5509 struct nlattr *nl_pats, *nl_pat;
5510 int i, pat_len;
5511
5512 nl_pats = nla_nest_start(msg,
5513 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5514 if (!nl_pats)
5515 goto nla_put_failure;
5516
5517 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5518 nl_pat = nla_nest_start(msg, i + 1);
5519 if (!nl_pat)
5520 goto nla_put_failure;
5521 pat_len = rdev->wowlan->patterns[i].pattern_len;
5522 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5523 DIV_ROUND_UP(pat_len, 8),
5524 rdev->wowlan->patterns[i].mask);
5525 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5526 pat_len,
5527 rdev->wowlan->patterns[i].pattern);
5528 nla_nest_end(msg, nl_pat);
5529 }
5530 nla_nest_end(msg, nl_pats);
5531 }
5532
5533 nla_nest_end(msg, nl_wowlan);
5534 }
5535
5536 genlmsg_end(msg, hdr);
5537 return genlmsg_reply(msg, info);
5538
5539nla_put_failure:
5540 nlmsg_free(msg);
5541 return -ENOBUFS;
5542}
5543
5544static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5545{
5546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5547 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5548 struct cfg80211_wowlan no_triggers = {};
5549 struct cfg80211_wowlan new_triggers = {};
5550 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5551 int err, i;
5552
5553 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5554 return -EOPNOTSUPP;
5555
5556 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5557 goto no_triggers;
5558
5559 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5560 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5561 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5562 nl80211_wowlan_policy);
5563 if (err)
5564 return err;
5565
5566 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5567 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5568 return -EINVAL;
5569 new_triggers.any = true;
5570 }
5571
5572 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5573 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5574 return -EINVAL;
5575 new_triggers.disconnect = true;
5576 }
5577
5578 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5579 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5580 return -EINVAL;
5581 new_triggers.magic_pkt = true;
5582 }
5583
77dbbb13
JB		 5584 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5585 return -EINVAL;
5586
5587 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5588 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5589 return -EINVAL;
5590 new_triggers.gtk_rekey_failure = true;
5591 }
5592
5593 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5594 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5595 return -EINVAL;
5596 new_triggers.eap_identity_req = true;
5597 }
5598
5599 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5600 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5601 return -EINVAL;
5602 new_triggers.four_way_handshake = true;
5603 }
5604
5605 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5606 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5607 return -EINVAL;
5608 new_triggers.rfkill_release = true;
5609 }
5610
ff1b6e69
JB		 5611 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5612 struct nlattr *pat;
5613 int n_patterns = 0;
5614 int rem, pat_len, mask_len;
5615 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5616
5617 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5618 rem)
5619 n_patterns++;
5620 if (n_patterns > wowlan->n_patterns)
5621 return -EINVAL;
5622
5623 new_triggers.patterns = kcalloc(n_patterns,
5624 sizeof(new_triggers.patterns[0]),
5625 GFP_KERNEL);
5626 if (!new_triggers.patterns)
5627 return -ENOMEM;
5628
5629 new_triggers.n_patterns = n_patterns;
5630 i = 0;
5631
5632 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5633 rem) {
5634 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5635 nla_data(pat), nla_len(pat), NULL);
5636 err = -EINVAL;
5637 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5638 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5639 goto error;
5640 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5641 mask_len = DIV_ROUND_UP(pat_len, 8);
5642 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5643 mask_len)
5644 goto error;
5645 if (pat_len > wowlan->pattern_max_len ||
5646 pat_len < wowlan->pattern_min_len)
5647 goto error;
5648
5649 new_triggers.patterns[i].mask =
5650 kmalloc(mask_len + pat_len, GFP_KERNEL);
5651 if (!new_triggers.patterns[i].mask) {
5652 err = -ENOMEM;
5653 goto error;
5654 }
5655 new_triggers.patterns[i].pattern =
5656 new_triggers.patterns[i].mask + mask_len;
5657 memcpy(new_triggers.patterns[i].mask,
5658 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5659 mask_len);
5660 new_triggers.patterns[i].pattern_len = pat_len;
5661 memcpy(new_triggers.patterns[i].pattern,
5662 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5663 pat_len);
5664 i++;
5665 }
5666 }
5667
5668 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5669 struct cfg80211_wowlan *ntrig;
5670 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5671 GFP_KERNEL);
5672 if (!ntrig) {
5673 err = -ENOMEM;
5674 goto error;
5675 }
5676 cfg80211_rdev_free_wowlan(rdev);
5677 rdev->wowlan = ntrig;
5678 } else {
5679 no_triggers:
5680 cfg80211_rdev_free_wowlan(rdev);
5681 rdev->wowlan = NULL;
5682 }
5683
5684 return 0;
5685 error:
5686 for (i = 0; i < new_triggers.n_patterns; i++)
5687 kfree(new_triggers.patterns[i].mask);
5688 kfree(new_triggers.patterns);
5689 return err;
5690}
5691
e5497d76
JB		 5692static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5693{
5694 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5695 struct net_device *dev = info->user_ptr[1];
5696 struct wireless_dev *wdev = dev->ieee80211_ptr;
5697 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5698 struct cfg80211_gtk_rekey_data rekey_data;
5699 int err;
5700
5701 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5702 return -EINVAL;
5703
5704 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5705 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5706 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5707 nl80211_rekey_policy);
5708 if (err)
5709 return err;
5710
5711 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5712 return -ERANGE;
5713 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5714 return -ERANGE;
5715 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5716 return -ERANGE;
5717
5718 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5719 NL80211_KEK_LEN);
5720 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5721 NL80211_KCK_LEN);
5722 memcpy(rekey_data.replay_ctr,
5723 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5724 NL80211_REPLAY_CTR_LEN);
5725
5726 wdev_lock(wdev);
5727 if (!wdev->current_bss) {
5728 err = -ENOTCONN;
5729 goto out;
5730 }
5731
5732 if (!rdev->ops->set_rekey_data) {
5733 err = -EOPNOTSUPP;
5734 goto out;
5735 }
5736
5737 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5738 out:
5739 wdev_unlock(wdev);
5740 return err;
5741}
5742
4c476991
JB		 5743#define NL80211_FLAG_NEED_WIPHY 0x01
5744#define NL80211_FLAG_NEED_NETDEV 0x02
5745#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5746#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5747#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5748 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5749
5750static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5751 struct genl_info *info)
5752{
5753 struct cfg80211_registered_device *rdev;
5754 struct net_device *dev;
5755 int err;
5756 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5757
5758 if (rtnl)
5759 rtnl_lock();
5760
5761 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5762 rdev = cfg80211_get_dev_from_info(info);
5763 if (IS_ERR(rdev)) {
5764 if (rtnl)
5765 rtnl_unlock();
5766 return PTR_ERR(rdev);
5767 }
5768 info->user_ptr[0] = rdev;
5769 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5770 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5771 if (err) {
5772 if (rtnl)
5773 rtnl_unlock();
5774 return err;
5775 }
41265714
JB		 5776 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5777 !netif_running(dev)) {
d537f5fd
JB		 5778 cfg80211_unlock_rdev(rdev);
5779 dev_put(dev);
41265714
JB		 5780 if (rtnl)
5781 rtnl_unlock();
5782 return -ENETDOWN;
5783 }
4c476991
JB		 5784 info->user_ptr[0] = rdev;
5785 info->user_ptr[1] = dev;
5786 }
5787
5788 return 0;
5789}
5790
5791static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5792 struct genl_info *info)
5793{
5794 if (info->user_ptr[0])
5795 cfg80211_unlock_rdev(info->user_ptr[0]);
5796 if (info->user_ptr[1])
5797 dev_put(info->user_ptr[1]);
5798 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5799 rtnl_unlock();
5800}
5801
55682965
JB		 5802static struct genl_ops nl80211_ops[] = {
5803 {
5804 .cmd = NL80211_CMD_GET_WIPHY,
5805 .doit = nl80211_get_wiphy,
5806 .dumpit = nl80211_dump_wiphy,
5807 .policy = nl80211_policy,
5808 /* can be retrieved by unprivileged users */
4c476991 5809 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5810 },
5811 {
5812 .cmd = NL80211_CMD_SET_WIPHY,
5813 .doit = nl80211_set_wiphy,
5814 .policy = nl80211_policy,
5815 .flags = GENL_ADMIN_PERM,
4c476991 5816 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5817 },
5818 {
5819 .cmd = NL80211_CMD_GET_INTERFACE,
5820 .doit = nl80211_get_interface,
5821 .dumpit = nl80211_dump_interface,
5822 .policy = nl80211_policy,
5823 /* can be retrieved by unprivileged users */
4c476991 5824 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5825 },
5826 {
5827 .cmd = NL80211_CMD_SET_INTERFACE,
5828 .doit = nl80211_set_interface,
5829 .policy = nl80211_policy,
5830 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5831 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5832 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5833 },
5834 {
5835 .cmd = NL80211_CMD_NEW_INTERFACE,
5836 .doit = nl80211_new_interface,
5837 .policy = nl80211_policy,
5838 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5839 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5840 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5841 },
5842 {
5843 .cmd = NL80211_CMD_DEL_INTERFACE,
5844 .doit = nl80211_del_interface,
5845 .policy = nl80211_policy,
41ade00f 5846 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5847 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5848 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5849 },
5850 {
5851 .cmd = NL80211_CMD_GET_KEY,
5852 .doit = nl80211_get_key,
5853 .policy = nl80211_policy,
5854 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5855 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5856 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5857 },
5858 {
5859 .cmd = NL80211_CMD_SET_KEY,
5860 .doit = nl80211_set_key,
5861 .policy = nl80211_policy,
5862 .flags = GENL_ADMIN_PERM,
41265714 5863 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5864 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5865 },
5866 {
5867 .cmd = NL80211_CMD_NEW_KEY,
5868 .doit = nl80211_new_key,
5869 .policy = nl80211_policy,
5870 .flags = GENL_ADMIN_PERM,
41265714 5871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5872 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5873 },
5874 {
5875 .cmd = NL80211_CMD_DEL_KEY,
5876 .doit = nl80211_del_key,
5877 .policy = nl80211_policy,
55682965 5878 .flags = GENL_ADMIN_PERM,
41265714 5879 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5880 NL80211_FLAG_NEED_RTNL,
55682965 5881 },
ed1b6cc7
JB		 5882 {
5883 .cmd = NL80211_CMD_SET_BEACON,
5884 .policy = nl80211_policy,
5885 .flags = GENL_ADMIN_PERM,
5886 .doit = nl80211_addset_beacon,
4c476991
JB		 5887 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5888 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5889 },
5890 {
5891 .cmd = NL80211_CMD_NEW_BEACON,
5892 .policy = nl80211_policy,
5893 .flags = GENL_ADMIN_PERM,
5894 .doit = nl80211_addset_beacon,
4c476991
JB		 5895 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5896 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 5897 },
5898 {
5899 .cmd = NL80211_CMD_DEL_BEACON,
5900 .policy = nl80211_policy,
5901 .flags = GENL_ADMIN_PERM,
5902 .doit = nl80211_del_beacon,
4c476991
JB		 5903 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5904 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 5905 },
5727ef1b
JB		 5906 {
5907 .cmd = NL80211_CMD_GET_STATION,
5908 .doit = nl80211_get_station,
2ec600d6 5909 .dumpit = nl80211_dump_station,
5727ef1b 5910 .policy = nl80211_policy,
4c476991
JB		 5911 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5912 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5913 },
5914 {
5915 .cmd = NL80211_CMD_SET_STATION,
5916 .doit = nl80211_set_station,
5917 .policy = nl80211_policy,
5918 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5919 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5920 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5921 },
5922 {
5923 .cmd = NL80211_CMD_NEW_STATION,
5924 .doit = nl80211_new_station,
5925 .policy = nl80211_policy,
5926 .flags = GENL_ADMIN_PERM,
41265714 5927 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5928 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 5929 },
5930 {
5931 .cmd = NL80211_CMD_DEL_STATION,
5932 .doit = nl80211_del_station,
5933 .policy = nl80211_policy,
2ec600d6 5934 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5935 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5936 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5937 },
5938 {
5939 .cmd = NL80211_CMD_GET_MPATH,
5940 .doit = nl80211_get_mpath,
5941 .dumpit = nl80211_dump_mpath,
5942 .policy = nl80211_policy,
5943 .flags = GENL_ADMIN_PERM,
41265714 5944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5945 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5946 },
5947 {
5948 .cmd = NL80211_CMD_SET_MPATH,
5949 .doit = nl80211_set_mpath,
5950 .policy = nl80211_policy,
5951 .flags = GENL_ADMIN_PERM,
41265714 5952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5953 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5954 },
5955 {
5956 .cmd = NL80211_CMD_NEW_MPATH,
5957 .doit = nl80211_new_mpath,
5958 .policy = nl80211_policy,
5959 .flags = GENL_ADMIN_PERM,
41265714 5960 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5961 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 5962 },
5963 {
5964 .cmd = NL80211_CMD_DEL_MPATH,
5965 .doit = nl80211_del_mpath,
5966 .policy = nl80211_policy,
9f1ba906 5967 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5968 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5969 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 5970 },
5971 {
5972 .cmd = NL80211_CMD_SET_BSS,
5973 .doit = nl80211_set_bss,
5974 .policy = nl80211_policy,
b2e1b302 5975 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5976 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5977 NL80211_FLAG_NEED_RTNL,
b2e1b302 5978 },
f130347c
LR		 5979 {
5980 .cmd = NL80211_CMD_GET_REG,
5981 .doit = nl80211_get_reg,
5982 .policy = nl80211_policy,
5983 /* can be retrieved by unprivileged users */
5984 },
b2e1b302
LR		 5985 {
5986 .cmd = NL80211_CMD_SET_REG,
5987 .doit = nl80211_set_reg,
5988 .policy = nl80211_policy,
5989 .flags = GENL_ADMIN_PERM,
5990 },
5991 {
5992 .cmd = NL80211_CMD_REQ_SET_REG,
5993 .doit = nl80211_req_set_reg,
5994 .policy = nl80211_policy,
93da9cc1 5995 .flags = GENL_ADMIN_PERM,
5996 },
5997 {
24bdd9f4
JC		 5998 .cmd = NL80211_CMD_GET_MESH_CONFIG,
5999 .doit = nl80211_get_mesh_config,
93da9cc1 6000 .policy = nl80211_policy,
6001 /* can be retrieved by unprivileged users */
4c476991
JB		 6002 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6003 NL80211_FLAG_NEED_RTNL,
93da9cc1 6004 },
6005 {
24bdd9f4
JC		 6006 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6007 .doit = nl80211_update_mesh_config,
93da9cc1 6008 .policy = nl80211_policy,
9aed3cc1 6009 .flags = GENL_ADMIN_PERM,
29cbe68c 6010 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6011 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6012 },
2a519311
JB		 6013 {
6014 .cmd = NL80211_CMD_TRIGGER_SCAN,
6015 .doit = nl80211_trigger_scan,
6016 .policy = nl80211_policy,
6017 .flags = GENL_ADMIN_PERM,
41265714 6018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6019 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6020 },
6021 {
6022 .cmd = NL80211_CMD_GET_SCAN,
6023 .policy = nl80211_policy,
6024 .dumpit = nl80211_dump_scan,
6025 },
807f8a8c
LC		 6026 {
6027 .cmd = NL80211_CMD_START_SCHED_SCAN,
6028 .doit = nl80211_start_sched_scan,
6029 .policy = nl80211_policy,
6030 .flags = GENL_ADMIN_PERM,
6031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6032 NL80211_FLAG_NEED_RTNL,
6033 },
6034 {
6035 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6036 .doit = nl80211_stop_sched_scan,
6037 .policy = nl80211_policy,
6038 .flags = GENL_ADMIN_PERM,
6039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6040 NL80211_FLAG_NEED_RTNL,
6041 },
636a5d36
JM		 6042 {
6043 .cmd = NL80211_CMD_AUTHENTICATE,
6044 .doit = nl80211_authenticate,
6045 .policy = nl80211_policy,
6046 .flags = GENL_ADMIN_PERM,
41265714 6047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6048 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6049 },
6050 {
6051 .cmd = NL80211_CMD_ASSOCIATE,
6052 .doit = nl80211_associate,
6053 .policy = nl80211_policy,
6054 .flags = GENL_ADMIN_PERM,
41265714 6055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6056 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6057 },
6058 {
6059 .cmd = NL80211_CMD_DEAUTHENTICATE,
6060 .doit = nl80211_deauthenticate,
6061 .policy = nl80211_policy,
6062 .flags = GENL_ADMIN_PERM,
41265714 6063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6064 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6065 },
6066 {
6067 .cmd = NL80211_CMD_DISASSOCIATE,
6068 .doit = nl80211_disassociate,
6069 .policy = nl80211_policy,
6070 .flags = GENL_ADMIN_PERM,
41265714 6071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6072 NL80211_FLAG_NEED_RTNL,
636a5d36 6073 },
04a773ad
JB		 6074 {
6075 .cmd = NL80211_CMD_JOIN_IBSS,
6076 .doit = nl80211_join_ibss,
6077 .policy = nl80211_policy,
6078 .flags = GENL_ADMIN_PERM,
41265714 6079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6080 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6081 },
6082 {
6083 .cmd = NL80211_CMD_LEAVE_IBSS,
6084 .doit = nl80211_leave_ibss,
6085 .policy = nl80211_policy,
6086 .flags = GENL_ADMIN_PERM,
41265714 6087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6088 NL80211_FLAG_NEED_RTNL,
04a773ad 6089 },
aff89a9b
JB		 6090#ifdef CONFIG_NL80211_TESTMODE
6091 {
6092 .cmd = NL80211_CMD_TESTMODE,
6093 .doit = nl80211_testmode_do,
71063f0e 6094 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6095 .policy = nl80211_policy,
6096 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6097 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6098 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6099 },
6100#endif
b23aa676
SO		 6101 {
6102 .cmd = NL80211_CMD_CONNECT,
6103 .doit = nl80211_connect,
6104 .policy = nl80211_policy,
6105 .flags = GENL_ADMIN_PERM,
41265714 6106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6107 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6108 },
6109 {
6110 .cmd = NL80211_CMD_DISCONNECT,
6111 .doit = nl80211_disconnect,
6112 .policy = nl80211_policy,
6113 .flags = GENL_ADMIN_PERM,
41265714 6114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6115 NL80211_FLAG_NEED_RTNL,
b23aa676 6116 },
463d0183
JB		 6117 {
6118 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6119 .doit = nl80211_wiphy_netns,
6120 .policy = nl80211_policy,
6121 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6122 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6123 NL80211_FLAG_NEED_RTNL,
463d0183 6124 },
61fa713c
HS		 6125 {
6126 .cmd = NL80211_CMD_GET_SURVEY,
6127 .policy = nl80211_policy,
6128 .dumpit = nl80211_dump_survey,
6129 },
67fbb16b
SO		 6130 {
6131 .cmd = NL80211_CMD_SET_PMKSA,
6132 .doit = nl80211_setdel_pmksa,
6133 .policy = nl80211_policy,
6134 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6135 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6136 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6137 },
6138 {
6139 .cmd = NL80211_CMD_DEL_PMKSA,
6140 .doit = nl80211_setdel_pmksa,
6141 .policy = nl80211_policy,
6142 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6143 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6144 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6145 },
6146 {
6147 .cmd = NL80211_CMD_FLUSH_PMKSA,
6148 .doit = nl80211_flush_pmksa,
6149 .policy = nl80211_policy,
6150 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6151 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6152 NL80211_FLAG_NEED_RTNL,
67fbb16b 6153 },
9588bbd5
JM		 6154 {
6155 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6156 .doit = nl80211_remain_on_channel,
6157 .policy = nl80211_policy,
6158 .flags = GENL_ADMIN_PERM,
41265714 6159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6160 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6161 },
6162 {
6163 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6164 .doit = nl80211_cancel_remain_on_channel,
6165 .policy = nl80211_policy,
6166 .flags = GENL_ADMIN_PERM,
41265714 6167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6168 NL80211_FLAG_NEED_RTNL,
9588bbd5 6169 },
13ae75b1
JM		 6170 {
6171 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6172 .doit = nl80211_set_tx_bitrate_mask,
6173 .policy = nl80211_policy,
6174 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6175 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6176 NL80211_FLAG_NEED_RTNL,
13ae75b1 6177 },
026331c4 6178 {
2e161f78
JB		 6179 .cmd = NL80211_CMD_REGISTER_FRAME,
6180 .doit = nl80211_register_mgmt,
026331c4
JM		 6181 .policy = nl80211_policy,
6182 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6183 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6184 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6185 },
6186 {
2e161f78
JB		 6187 .cmd = NL80211_CMD_FRAME,
6188 .doit = nl80211_tx_mgmt,
026331c4 6189 .policy = nl80211_policy,
f7ca38df
JB		 6190 .flags = GENL_ADMIN_PERM,
6191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6192 NL80211_FLAG_NEED_RTNL,
6193 },
6194 {
6195 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6196 .doit = nl80211_tx_mgmt_cancel_wait,
6197 .policy = nl80211_policy,
026331c4 6198 .flags = GENL_ADMIN_PERM,
41265714 6199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6200 NL80211_FLAG_NEED_RTNL,
026331c4 6201 },
ffb9eb3d
KV		 6202 {
6203 .cmd = NL80211_CMD_SET_POWER_SAVE,
6204 .doit = nl80211_set_power_save,
6205 .policy = nl80211_policy,
6206 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6207 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6208 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6209 },
6210 {
6211 .cmd = NL80211_CMD_GET_POWER_SAVE,
6212 .doit = nl80211_get_power_save,
6213 .policy = nl80211_policy,
6214 /* can be retrieved by unprivileged users */
4c476991
JB		 6215 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6216 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6217 },
d6dc1a38
JO		 6218 {
6219 .cmd = NL80211_CMD_SET_CQM,
6220 .doit = nl80211_set_cqm,
6221 .policy = nl80211_policy,
6222 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6223 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6224 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6225 },
f444de05
JB		 6226 {
6227 .cmd = NL80211_CMD_SET_CHANNEL,
6228 .doit = nl80211_set_channel,
6229 .policy = nl80211_policy,
6230 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6231 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6232 NL80211_FLAG_NEED_RTNL,
f444de05 6233 },
e8347eba
BJ		 6234 {
6235 .cmd = NL80211_CMD_SET_WDS_PEER,
6236 .doit = nl80211_set_wds_peer,
6237 .policy = nl80211_policy,
6238 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6239 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6240 NL80211_FLAG_NEED_RTNL,
e8347eba 6241 },
29cbe68c
JB		 6242 {
6243 .cmd = NL80211_CMD_JOIN_MESH,
6244 .doit = nl80211_join_mesh,
6245 .policy = nl80211_policy,
6246 .flags = GENL_ADMIN_PERM,
6247 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6248 NL80211_FLAG_NEED_RTNL,
6249 },
6250 {
6251 .cmd = NL80211_CMD_LEAVE_MESH,
6252 .doit = nl80211_leave_mesh,
6253 .policy = nl80211_policy,
6254 .flags = GENL_ADMIN_PERM,
6255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6256 NL80211_FLAG_NEED_RTNL,
6257 },
ff1b6e69
JB		 6258 {
6259 .cmd = NL80211_CMD_GET_WOWLAN,
6260 .doit = nl80211_get_wowlan,
6261 .policy = nl80211_policy,
6262 /* can be retrieved by unprivileged users */
6263 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6264 NL80211_FLAG_NEED_RTNL,
6265 },
6266 {
6267 .cmd = NL80211_CMD_SET_WOWLAN,
6268 .doit = nl80211_set_wowlan,
6269 .policy = nl80211_policy,
6270 .flags = GENL_ADMIN_PERM,
6271 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6272 NL80211_FLAG_NEED_RTNL,
6273 },
e5497d76
JB		 6274 {
6275 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6276 .doit = nl80211_set_rekey_data,
6277 .policy = nl80211_policy,
6278 .flags = GENL_ADMIN_PERM,
6279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6280 NL80211_FLAG_NEED_RTNL,
6281 },
55682965 6282};
9588bbd5 6283
6039f6d2
JM		 6284static struct genl_multicast_group nl80211_mlme_mcgrp = {
6285 .name = "mlme",
6286};
55682965
JB		 6287
6288/* multicast groups */
6289static struct genl_multicast_group nl80211_config_mcgrp = {
6290 .name = "config",
6291};
2a519311
JB		 6292static struct genl_multicast_group nl80211_scan_mcgrp = {
6293 .name = "scan",
6294};
73d54c9e
LR		 6295static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6296 .name = "regulatory",
6297};
55682965
JB		 6298
6299/* notification functions */
6300
6301void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6302{
6303 struct sk_buff *msg;
6304
fd2120ca 6305 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6306 if (!msg)
6307 return;
6308
6309 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6310 nlmsg_free(msg);
6311 return;
6312 }
6313
463d0183
JB		 6314 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6315 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6316}
6317
362a415d
JB		 6318static int nl80211_add_scan_req(struct sk_buff *msg,
6319 struct cfg80211_registered_device *rdev)
6320{
6321 struct cfg80211_scan_request *req = rdev->scan_req;
6322 struct nlattr *nest;
6323 int i;
6324
667503dd
JB		 6325 ASSERT_RDEV_LOCK(rdev);
6326
362a415d
JB		 6327 if (WARN_ON(!req))
6328 return 0;
6329
6330 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6331 if (!nest)
6332 goto nla_put_failure;
6333 for (i = 0; i < req->n_ssids; i++)
6334 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6335 nla_nest_end(msg, nest);
6336
6337 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6338 if (!nest)
6339 goto nla_put_failure;
6340 for (i = 0; i < req->n_channels; i++)
6341 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6342 nla_nest_end(msg, nest);
6343
6344 if (req->ie)
6345 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6346
6347 return 0;
6348 nla_put_failure:
6349 return -ENOBUFS;
6350}
6351
a538e2d5
JB		 6352static int nl80211_send_scan_msg(struct sk_buff *msg,
6353 struct cfg80211_registered_device *rdev,
6354 struct net_device *netdev,
6355 u32 pid, u32 seq, int flags,
6356 u32 cmd)
2a519311
JB		 6357{
6358 void *hdr;
6359
6360 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6361 if (!hdr)
6362 return -1;
6363
b5850a7a 6364 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6365 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6366
362a415d
JB		 6367 /* ignore errors and send incomplete event anyway */
6368 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6369
6370 return genlmsg_end(msg, hdr);
6371
6372 nla_put_failure:
6373 genlmsg_cancel(msg, hdr);
6374 return -EMSGSIZE;
6375}
6376
807f8a8c
LC		 6377static int
6378nl80211_send_sched_scan_msg(struct sk_buff *msg,
6379 struct cfg80211_registered_device *rdev,
6380 struct net_device *netdev,
6381 u32 pid, u32 seq, int flags, u32 cmd)
6382{
6383 void *hdr;
6384
6385 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6386 if (!hdr)
6387 return -1;
6388
6389 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6390 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6391
6392 return genlmsg_end(msg, hdr);
6393
6394 nla_put_failure:
6395 genlmsg_cancel(msg, hdr);
6396 return -EMSGSIZE;
6397}
6398
a538e2d5
JB		 6399void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6400 struct net_device *netdev)
6401{
6402 struct sk_buff *msg;
6403
6404 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6405 if (!msg)
6406 return;
6407
6408 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6409 NL80211_CMD_TRIGGER_SCAN) < 0) {
6410 nlmsg_free(msg);
6411 return;
6412 }
6413
463d0183
JB		 6414 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6415 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6416}
6417
2a519311
JB		 6418void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6419 struct net_device *netdev)
6420{
6421 struct sk_buff *msg;
6422
fd2120ca 6423 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6424 if (!msg)
6425 return;
6426
a538e2d5
JB		 6427 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6428 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6429 nlmsg_free(msg);
6430 return;
6431 }
6432
463d0183
JB		 6433 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6434 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6435}
6436
6437void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6438 struct net_device *netdev)
6439{
6440 struct sk_buff *msg;
6441
fd2120ca 6442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6443 if (!msg)
6444 return;
6445
a538e2d5
JB		 6446 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6447 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6448 nlmsg_free(msg);
6449 return;
6450 }
6451
463d0183
JB		 6452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6453 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6454}
6455
807f8a8c
LC		 6456void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6457 struct net_device *netdev)
6458{
6459 struct sk_buff *msg;
6460
6461 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6462 if (!msg)
6463 return;
6464
6465 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6466 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6467 nlmsg_free(msg);
6468 return;
6469 }
6470
6471 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6472 nl80211_scan_mcgrp.id, GFP_KERNEL);
6473}
6474
6475void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6476 struct net_device *netdev, u32 cmd)
6477{
6478 struct sk_buff *msg;
6479
6480 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6481 if (!msg)
6482 return;
6483
6484 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6485 nlmsg_free(msg);
6486 return;
6487 }
6488
6489 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6490 nl80211_scan_mcgrp.id, GFP_KERNEL);
6491}
6492
73d54c9e
LR		 6493/*
6494 * This can happen on global regulatory changes or device specific settings
6495 * based on custom world regulatory domains.
6496 */
6497void nl80211_send_reg_change_event(struct regulatory_request *request)
6498{
6499 struct sk_buff *msg;
6500 void *hdr;
6501
fd2120ca 6502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6503 if (!msg)
6504 return;
6505
6506 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6507 if (!hdr) {
6508 nlmsg_free(msg);
6509 return;
6510 }
6511
6512 /* Userspace can always count this one always being set */
6513 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6514
6515 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6516 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6517 NL80211_REGDOM_TYPE_WORLD);
6518 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6519 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6520 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6521 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6522 request->intersect)
6523 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6524 NL80211_REGDOM_TYPE_INTERSECTION);
6525 else {
6526 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6527 NL80211_REGDOM_TYPE_COUNTRY);
6528 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6529 }
6530
6531 if (wiphy_idx_valid(request->wiphy_idx))
6532 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6533
6534 if (genlmsg_end(msg, hdr) < 0) {
6535 nlmsg_free(msg);
6536 return;
6537 }
6538
bc43b28c 6539 rcu_read_lock();
463d0183 6540 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6541 GFP_ATOMIC);
6542 rcu_read_unlock();
73d54c9e
LR		 6543
6544 return;
6545
6546nla_put_failure:
6547 genlmsg_cancel(msg, hdr);
6548 nlmsg_free(msg);
6549}
6550
6039f6d2
JM		 6551static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6552 struct net_device *netdev,
6553 const u8 *buf, size_t len,
e6d6e342 6554 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6555{
6556 struct sk_buff *msg;
6557 void *hdr;
6558
e6d6e342 6559 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6560 if (!msg)
6561 return;
6562
6563 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6564 if (!hdr) {
6565 nlmsg_free(msg);
6566 return;
6567 }
6568
6569 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6570 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6571 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6572
6573 if (genlmsg_end(msg, hdr) < 0) {
6574 nlmsg_free(msg);
6575 return;
6576 }
6577
463d0183
JB		 6578 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6579 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6580 return;
6581
6582 nla_put_failure:
6583 genlmsg_cancel(msg, hdr);
6584 nlmsg_free(msg);
6585}
6586
6587void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6588 struct net_device *netdev, const u8 *buf,
6589 size_t len, gfp_t gfp)
6039f6d2
JM		 6590{
6591 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6592 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6593}
6594
6595void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6596 struct net_device *netdev, const u8 *buf,
e6d6e342 6597 size_t len, gfp_t gfp)
6039f6d2 6598{
e6d6e342
JB		 6599 nl80211_send_mlme_event(rdev, netdev, buf, len,
6600 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6601}
6602
53b46b84 6603void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6604 struct net_device *netdev, const u8 *buf,
6605 size_t len, gfp_t gfp)
6039f6d2
JM		 6606{
6607 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6608 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6609}
6610
53b46b84
JM		 6611void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6612 struct net_device *netdev, const u8 *buf,
e6d6e342 6613 size_t len, gfp_t gfp)
6039f6d2
JM		 6614{
6615 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6616 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6617}
6618
cf4e594e
JM		 6619void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6620 struct net_device *netdev, const u8 *buf,
6621 size_t len, gfp_t gfp)
6622{
6623 nl80211_send_mlme_event(rdev, netdev, buf, len,
6624 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6625}
6626
6627void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6628 struct net_device *netdev, const u8 *buf,
6629 size_t len, gfp_t gfp)
6630{
6631 nl80211_send_mlme_event(rdev, netdev, buf, len,
6632 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6633}
6634
1b06bb40
LR		 6635static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6636 struct net_device *netdev, int cmd,
e6d6e342 6637 const u8 *addr, gfp_t gfp)
1965c853
JM		 6638{
6639 struct sk_buff *msg;
6640 void *hdr;
6641
e6d6e342 6642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6643 if (!msg)
6644 return;
6645
6646 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6647 if (!hdr) {
6648 nlmsg_free(msg);
6649 return;
6650 }
6651
6652 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6653 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6654 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6655 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6656
6657 if (genlmsg_end(msg, hdr) < 0) {
6658 nlmsg_free(msg);
6659 return;
6660 }
6661
463d0183
JB		 6662 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6663 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6664 return;
6665
6666 nla_put_failure:
6667 genlmsg_cancel(msg, hdr);
6668 nlmsg_free(msg);
6669}
6670
6671void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6672 struct net_device *netdev, const u8 *addr,
6673 gfp_t gfp)
1965c853
JM		 6674{
6675 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6676 addr, gfp);
1965c853
JM		 6677}
6678
6679void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6680 struct net_device *netdev, const u8 *addr,
6681 gfp_t gfp)
1965c853 6682{
e6d6e342
JB		 6683 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6684 addr, gfp);
1965c853
JM		 6685}
6686
b23aa676
SO		 6687void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6688 struct net_device *netdev, const u8 *bssid,
6689 const u8 *req_ie, size_t req_ie_len,
6690 const u8 *resp_ie, size_t resp_ie_len,
6691 u16 status, gfp_t gfp)
6692{
6693 struct sk_buff *msg;
6694 void *hdr;
6695
6696 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6697 if (!msg)
6698 return;
6699
6700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6701 if (!hdr) {
6702 nlmsg_free(msg);
6703 return;
6704 }
6705
6706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6707 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6708 if (bssid)
6709 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6710 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6711 if (req_ie)
6712 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6713 if (resp_ie)
6714 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6715
6716 if (genlmsg_end(msg, hdr) < 0) {
6717 nlmsg_free(msg);
6718 return;
6719 }
6720
463d0183
JB		 6721 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6722 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6723 return;
6724
6725 nla_put_failure:
6726 genlmsg_cancel(msg, hdr);
6727 nlmsg_free(msg);
6728
6729}
6730
6731void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6732 struct net_device *netdev, const u8 *bssid,
6733 const u8 *req_ie, size_t req_ie_len,
6734 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6735{
6736 struct sk_buff *msg;
6737 void *hdr;
6738
6739 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6740 if (!msg)
6741 return;
6742
6743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6744 if (!hdr) {
6745 nlmsg_free(msg);
6746 return;
6747 }
6748
6749 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6750 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6751 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6752 if (req_ie)
6753 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6754 if (resp_ie)
6755 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6756
6757 if (genlmsg_end(msg, hdr) < 0) {
6758 nlmsg_free(msg);
6759 return;
6760 }
6761
463d0183
JB		 6762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6763 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6764 return;
6765
6766 nla_put_failure:
6767 genlmsg_cancel(msg, hdr);
6768 nlmsg_free(msg);
6769
6770}
6771
6772void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6773 struct net_device *netdev, u16 reason,
667503dd 6774 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6775{
6776 struct sk_buff *msg;
6777 void *hdr;
6778
667503dd 6779 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6780 if (!msg)
6781 return;
6782
6783 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6784 if (!hdr) {
6785 nlmsg_free(msg);
6786 return;
6787 }
6788
6789 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6790 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6791 if (from_ap && reason)
6792 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6793 if (from_ap)
6794 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6795 if (ie)
6796 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6797
6798 if (genlmsg_end(msg, hdr) < 0) {
6799 nlmsg_free(msg);
6800 return;
6801 }
6802
463d0183
JB		 6803 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6804 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6805 return;
6806
6807 nla_put_failure:
6808 genlmsg_cancel(msg, hdr);
6809 nlmsg_free(msg);
6810
6811}
6812
04a773ad
JB		 6813void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6814 struct net_device *netdev, const u8 *bssid,
6815 gfp_t gfp)
6816{
6817 struct sk_buff *msg;
6818 void *hdr;
6819
fd2120ca 6820 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6821 if (!msg)
6822 return;
6823
6824 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6825 if (!hdr) {
6826 nlmsg_free(msg);
6827 return;
6828 }
6829
6830 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6831 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6832 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6833
6834 if (genlmsg_end(msg, hdr) < 0) {
6835 nlmsg_free(msg);
6836 return;
6837 }
6838
463d0183
JB		 6839 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6840 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6841 return;
6842
6843 nla_put_failure:
6844 genlmsg_cancel(msg, hdr);
6845 nlmsg_free(msg);
6846}
6847
c93b5e71
JC		 6848void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6849 struct net_device *netdev,
6850 const u8 *macaddr, const u8* ie, u8 ie_len,
6851 gfp_t gfp)
6852{
6853 struct sk_buff *msg;
6854 void *hdr;
6855
6856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6857 if (!msg)
6858 return;
6859
6860 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6861 if (!hdr) {
6862 nlmsg_free(msg);
6863 return;
6864 }
6865
6866 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6867 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6868 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6869 if (ie_len && ie)
6870 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6871
6872 if (genlmsg_end(msg, hdr) < 0) {
6873 nlmsg_free(msg);
6874 return;
6875 }
6876
6877 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6878 nl80211_mlme_mcgrp.id, gfp);
6879 return;
6880
6881 nla_put_failure:
6882 genlmsg_cancel(msg, hdr);
6883 nlmsg_free(msg);
6884}
6885
a3b8b056
JM		 6886void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
6887 struct net_device *netdev, const u8 *addr,
6888 enum nl80211_key_type key_type, int key_id,
e6d6e342 6889 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 6890{
6891 struct sk_buff *msg;
6892 void *hdr;
6893
e6d6e342 6894 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 6895 if (!msg)
6896 return;
6897
6898 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
6899 if (!hdr) {
6900 nlmsg_free(msg);
6901 return;
6902 }
6903
6904 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6905 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6906 if (addr)
6907 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6908 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 6909 if (key_id != -1)
6910 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 6911 if (tsc)
6912 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
6913
6914 if (genlmsg_end(msg, hdr) < 0) {
6915 nlmsg_free(msg);
6916 return;
6917 }
6918
463d0183
JB		 6919 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6920 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 6921 return;
6922
6923 nla_put_failure:
6924 genlmsg_cancel(msg, hdr);
6925 nlmsg_free(msg);
6926}
6927
6bad8766
LR		 6928void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
6929 struct ieee80211_channel *channel_before,
6930 struct ieee80211_channel *channel_after)
6931{
6932 struct sk_buff *msg;
6933 void *hdr;
6934 struct nlattr *nl_freq;
6935
fd2120ca 6936 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 6937 if (!msg)
6938 return;
6939
6940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
6941 if (!hdr) {
6942 nlmsg_free(msg);
6943 return;
6944 }
6945
6946 /*
6947 * Since we are applying the beacon hint to a wiphy we know its
6948 * wiphy_idx is valid
6949 */
6950 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
6951
6952 /* Before */
6953 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
6954 if (!nl_freq)
6955 goto nla_put_failure;
6956 if (nl80211_msg_put_channel(msg, channel_before))
6957 goto nla_put_failure;
6958 nla_nest_end(msg, nl_freq);
6959
6960 /* After */
6961 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
6962 if (!nl_freq)
6963 goto nla_put_failure;
6964 if (nl80211_msg_put_channel(msg, channel_after))
6965 goto nla_put_failure;
6966 nla_nest_end(msg, nl_freq);
6967
6968 if (genlmsg_end(msg, hdr) < 0) {
6969 nlmsg_free(msg);
6970 return;
6971 }
6972
463d0183
JB		 6973 rcu_read_lock();
6974 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
6975 GFP_ATOMIC);
6976 rcu_read_unlock();
6bad8766
LR		 6977
6978 return;
6979
6980nla_put_failure:
6981 genlmsg_cancel(msg, hdr);
6982 nlmsg_free(msg);
6983}
6984
9588bbd5
JM		 6985static void nl80211_send_remain_on_chan_event(
6986 int cmd, struct cfg80211_registered_device *rdev,
6987 struct net_device *netdev, u64 cookie,
6988 struct ieee80211_channel *chan,
6989 enum nl80211_channel_type channel_type,
6990 unsigned int duration, gfp_t gfp)
6991{
6992 struct sk_buff *msg;
6993 void *hdr;
6994
6995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6996 if (!msg)
6997 return;
6998
6999 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7000 if (!hdr) {
7001 nlmsg_free(msg);
7002 return;
7003 }
7004
7005 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7006 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7007 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7008 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7009 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7010
7011 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7012 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7013
7014 if (genlmsg_end(msg, hdr) < 0) {
7015 nlmsg_free(msg);
7016 return;
7017 }
7018
7019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7020 nl80211_mlme_mcgrp.id, gfp);
7021 return;
7022
7023 nla_put_failure:
7024 genlmsg_cancel(msg, hdr);
7025 nlmsg_free(msg);
7026}
7027
7028void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7029 struct net_device *netdev, u64 cookie,
7030 struct ieee80211_channel *chan,
7031 enum nl80211_channel_type channel_type,
7032 unsigned int duration, gfp_t gfp)
7033{
7034 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7035 rdev, netdev, cookie, chan,
7036 channel_type, duration, gfp);
7037}
7038
7039void nl80211_send_remain_on_channel_cancel(
7040 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7041 u64 cookie, struct ieee80211_channel *chan,
7042 enum nl80211_channel_type channel_type, gfp_t gfp)
7043{
7044 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7045 rdev, netdev, cookie, chan,
7046 channel_type, 0, gfp);
7047}
7048
98b62183
JB		 7049void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7050 struct net_device *dev, const u8 *mac_addr,
7051 struct station_info *sinfo, gfp_t gfp)
7052{
7053 struct sk_buff *msg;
7054
7055 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7056 if (!msg)
7057 return;
7058
7059 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7060 nlmsg_free(msg);
7061 return;
7062 }
7063
7064 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7065 nl80211_mlme_mcgrp.id, gfp);
7066}
7067
ec15e68b
JM		 7068void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7069 struct net_device *dev, const u8 *mac_addr,
7070 gfp_t gfp)
7071{
7072 struct sk_buff *msg;
7073 void *hdr;
7074
7075 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7076 if (!msg)
7077 return;
7078
7079 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7080 if (!hdr) {
7081 nlmsg_free(msg);
7082 return;
7083 }
7084
7085 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7086 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7087
7088 if (genlmsg_end(msg, hdr) < 0) {
7089 nlmsg_free(msg);
7090 return;
7091 }
7092
7093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7094 nl80211_mlme_mcgrp.id, gfp);
7095 return;
7096
7097 nla_put_failure:
7098 genlmsg_cancel(msg, hdr);
7099 nlmsg_free(msg);
7100}
7101
2e161f78
JB		 7102int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7103 struct net_device *netdev, u32 nlpid,
7104 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7105{
7106 struct sk_buff *msg;
7107 void *hdr;
7108 int err;
7109
7110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7111 if (!msg)
7112 return -ENOMEM;
7113
2e161f78 7114 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7115 if (!hdr) {
7116 nlmsg_free(msg);
7117 return -ENOMEM;
7118 }
7119
7120 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7121 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7122 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7123 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7124
7125 err = genlmsg_end(msg, hdr);
7126 if (err < 0) {
7127 nlmsg_free(msg);
7128 return err;
7129 }
7130
7131 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7132 if (err < 0)
7133 return err;
7134 return 0;
7135
7136 nla_put_failure:
7137 genlmsg_cancel(msg, hdr);
7138 nlmsg_free(msg);
7139 return -ENOBUFS;
7140}
7141
2e161f78
JB		 7142void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7143 struct net_device *netdev, u64 cookie,
7144 const u8 *buf, size_t len, bool ack,
7145 gfp_t gfp)
026331c4
JM		 7146{
7147 struct sk_buff *msg;
7148 void *hdr;
7149
7150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7151 if (!msg)
7152 return;
7153
2e161f78 7154 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7155 if (!hdr) {
7156 nlmsg_free(msg);
7157 return;
7158 }
7159
7160 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7161 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7162 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7163 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7164 if (ack)
7165 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7166
7167 if (genlmsg_end(msg, hdr) < 0) {
7168 nlmsg_free(msg);
7169 return;
7170 }
7171
7172 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7173 return;
7174
7175 nla_put_failure:
7176 genlmsg_cancel(msg, hdr);
7177 nlmsg_free(msg);
7178}
7179
d6dc1a38
JO		 7180void
7181nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7182 struct net_device *netdev,
7183 enum nl80211_cqm_rssi_threshold_event rssi_event,
7184 gfp_t gfp)
7185{
7186 struct sk_buff *msg;
7187 struct nlattr *pinfoattr;
7188 void *hdr;
7189
7190 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7191 if (!msg)
7192 return;
7193
7194 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7195 if (!hdr) {
7196 nlmsg_free(msg);
7197 return;
7198 }
7199
7200 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7201 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7202
7203 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7204 if (!pinfoattr)
7205 goto nla_put_failure;
7206
7207 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7208 rssi_event);
7209
7210 nla_nest_end(msg, pinfoattr);
7211
7212 if (genlmsg_end(msg, hdr) < 0) {
7213 nlmsg_free(msg);
7214 return;
7215 }
7216
7217 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7218 nl80211_mlme_mcgrp.id, gfp);
7219 return;
7220
7221 nla_put_failure:
7222 genlmsg_cancel(msg, hdr);
7223 nlmsg_free(msg);
7224}
7225
e5497d76
JB		 7226void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7227 struct net_device *netdev, const u8 *bssid,
7228 const u8 *replay_ctr, gfp_t gfp)
7229{
7230 struct sk_buff *msg;
7231 struct nlattr *rekey_attr;
7232 void *hdr;
7233
7234 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7235 if (!msg)
7236 return;
7237
7238 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7239 if (!hdr) {
7240 nlmsg_free(msg);
7241 return;
7242 }
7243
7244 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7245 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7246 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7247
7248 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7249 if (!rekey_attr)
7250 goto nla_put_failure;
7251
7252 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7253 NL80211_REPLAY_CTR_LEN, replay_ctr);
7254
7255 nla_nest_end(msg, rekey_attr);
7256
7257 if (genlmsg_end(msg, hdr) < 0) {
7258 nlmsg_free(msg);
7259 return;
7260 }
7261
7262 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7263 nl80211_mlme_mcgrp.id, gfp);
7264 return;
7265
7266 nla_put_failure:
7267 genlmsg_cancel(msg, hdr);
7268 nlmsg_free(msg);
7269}
7270
c9df56b4
JM		 7271void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7272 struct net_device *netdev, int index,
7273 const u8 *bssid, bool preauth, gfp_t gfp)
7274{
7275 struct sk_buff *msg;
7276 struct nlattr *attr;
7277 void *hdr;
7278
7279 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7280 if (!msg)
7281 return;
7282
7283 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7284 if (!hdr) {
7285 nlmsg_free(msg);
7286 return;
7287 }
7288
7289 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7290 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7291
7292 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7293 if (!attr)
7294 goto nla_put_failure;
7295
7296 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7297 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7298 if (preauth)
7299 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7300
7301 nla_nest_end(msg, attr);
7302
7303 if (genlmsg_end(msg, hdr) < 0) {
7304 nlmsg_free(msg);
7305 return;
7306 }
7307
7308 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7309 nl80211_mlme_mcgrp.id, gfp);
7310 return;
7311
7312 nla_put_failure:
7313 genlmsg_cancel(msg, hdr);
7314 nlmsg_free(msg);
7315}
7316
c063dbf5
JB		 7317void
7318nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7319 struct net_device *netdev, const u8 *peer,
7320 u32 num_packets, gfp_t gfp)
7321{
7322 struct sk_buff *msg;
7323 struct nlattr *pinfoattr;
7324 void *hdr;
7325
7326 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7327 if (!msg)
7328 return;
7329
7330 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7331 if (!hdr) {
7332 nlmsg_free(msg);
7333 return;
7334 }
7335
7336 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7337 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7338 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7339
7340 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7341 if (!pinfoattr)
7342 goto nla_put_failure;
7343
7344 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7345
7346 nla_nest_end(msg, pinfoattr);
7347
7348 if (genlmsg_end(msg, hdr) < 0) {
7349 nlmsg_free(msg);
7350 return;
7351 }
7352
7353 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7354 nl80211_mlme_mcgrp.id, gfp);
7355 return;
7356
7357 nla_put_failure:
7358 genlmsg_cancel(msg, hdr);
7359 nlmsg_free(msg);
7360}
7361
026331c4
JM		 7362static int nl80211_netlink_notify(struct notifier_block * nb,
7363 unsigned long state,
7364 void *_notify)
7365{
7366 struct netlink_notify *notify = _notify;
7367 struct cfg80211_registered_device *rdev;
7368 struct wireless_dev *wdev;
7369
7370 if (state != NETLINK_URELEASE)
7371 return NOTIFY_DONE;
7372
7373 rcu_read_lock();
7374
7375 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7376 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7377 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 7378
7379 rcu_read_unlock();
7380
7381 return NOTIFY_DONE;
7382}
7383
7384static struct notifier_block nl80211_netlink_notifier = {
7385 .notifier_call = nl80211_netlink_notify,
7386};
7387
55682965
JB		 7388/* initialisation/exit functions */
7389
7390int nl80211_init(void)
7391{
0d63cbb5 7392 int err;
55682965 7393
0d63cbb5
MM		 7394 err = genl_register_family_with_ops(&nl80211_fam,
7395 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7396 if (err)
7397 return err;
7398
55682965
JB		 7399 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7400 if (err)
7401 goto err_out;
7402
2a519311
JB		 7403 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7404 if (err)
7405 goto err_out;
7406
73d54c9e
LR		 7407 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7408 if (err)
7409 goto err_out;
7410
6039f6d2
JM		 7411 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7412 if (err)
7413 goto err_out;
7414
aff89a9b
JB		 7415#ifdef CONFIG_NL80211_TESTMODE
7416 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7417 if (err)
7418 goto err_out;
7419#endif
7420
026331c4
JM		 7421 err = netlink_register_notifier(&nl80211_netlink_notifier);
7422 if (err)
7423 goto err_out;
7424
55682965
JB		 7425 return 0;
7426 err_out:
7427 genl_unregister_family(&nl80211_fam);
7428 return err;
7429}
7430
7431void nl80211_exit(void)
7432{
026331c4 7433 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7434 genl_unregister_family(&nl80211_fam);
7435}
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