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nl80211: Add probe response offload attribute
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
463d0183 50static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 51 struct cfg80211_registered_device **rdev,
55682965
JB		 52 struct net_device **dev)
53{
463d0183 54 struct nlattr **attrs = info->attrs;
55682965
JB		 55 int ifindex;
56
bba95fef 57 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 58 return -EINVAL;
59
bba95fef 60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 62 if (!*dev)
63 return -ENODEV;
64
463d0183 65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 66 if (IS_ERR(*rdev)) {
55682965 67 dev_put(*dev);
79c97e97 68 return PTR_ERR(*rdev);
55682965
JB		 69 }
70
71 return 0;
72}
73
74/* policy for the attributes */
b54452b0 75static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 78 .len = 20-1 },
31888487 79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 87
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 91
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 94
b9454e83 95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
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
6c739419 135 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 136
137 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
138 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 140 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
141 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 142
143 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
144 .len = IEEE80211_MAX_SSID_LEN },
145 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
146 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 147 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 148 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 149 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 150 [NL80211_ATTR_STA_FLAGS2] = {
151 .len = sizeof(struct nl80211_sta_flag_update),
152 },
3f77316c 153 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 154 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
155 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 156 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
157 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
158 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 159 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 160 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 161 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
162 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 163 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
164 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 165 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 166 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
167 .len = IEEE80211_MAX_DATA_LEN },
168 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 169 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 170 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 171 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 172 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 173 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
174 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 175 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 176 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
177 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 178 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 179 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 180 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 181 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 182 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 183 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 184 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 185 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 186 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 187 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
188 .len = IEEE80211_MAX_DATA_LEN },
189 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
190 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 191 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 192 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 193 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 194 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
197 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
198 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 199 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
55682965
JB		 200};
201
e31b8213 202/* policy for the key attributes */
b54452b0 203static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 204 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 205 [NL80211_KEY_IDX] = { .type = NLA_U8 },
206 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 207 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 208 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
209 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 210 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 211 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
212};
213
214/* policy for the key default flags */
215static const struct nla_policy
216nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
217 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 219};
220
ff1b6e69
JB		 221/* policy for WoWLAN attributes */
222static const struct nla_policy
223nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
224 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
226 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
227 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 228 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
229 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
230 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
231 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 232};
233
e5497d76
JB		 234/* policy for GTK rekey offload attributes */
235static const struct nla_policy
236nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
237 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
238 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
239 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
240};
241
a1f1c21c
LC		 242static const struct nla_policy
243nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
244 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
245 .len = IEEE80211_MAX_SSID_LEN },
246};
247
a043897a
HS		 248/* ifidx get helper */
249static int nl80211_get_ifidx(struct netlink_callback *cb)
250{
251 int res;
252
253 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
254 nl80211_fam.attrbuf, nl80211_fam.maxattr,
255 nl80211_policy);
256 if (res)
257 return res;
258
259 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
260 return -EINVAL;
261
262 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
263 if (!res)
264 return -EINVAL;
265 return res;
266}
267
67748893
JB		 268static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
269 struct netlink_callback *cb,
270 struct cfg80211_registered_device **rdev,
271 struct net_device **dev)
272{
273 int ifidx = cb->args[0];
274 int err;
275
276 if (!ifidx)
277 ifidx = nl80211_get_ifidx(cb);
278 if (ifidx < 0)
279 return ifidx;
280
281 cb->args[0] = ifidx;
282
283 rtnl_lock();
284
285 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
286 if (!*dev) {
287 err = -ENODEV;
288 goto out_rtnl;
289 }
290
291 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 292 if (IS_ERR(*rdev)) {
293 err = PTR_ERR(*rdev);
67748893
JB		 294 goto out_rtnl;
295 }
296
297 return 0;
298 out_rtnl:
299 rtnl_unlock();
300 return err;
301}
302
303static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
304{
305 cfg80211_unlock_rdev(rdev);
306 rtnl_unlock();
307}
308
f4a11bb0
JB		 309/* IE validation */
310static bool is_valid_ie_attr(const struct nlattr *attr)
311{
312 const u8 *pos;
313 int len;
314
315 if (!attr)
316 return true;
317
318 pos = nla_data(attr);
319 len = nla_len(attr);
320
321 while (len) {
322 u8 elemlen;
323
324 if (len < 2)
325 return false;
326 len -= 2;
327
328 elemlen = pos[1];
329 if (elemlen > len)
330 return false;
331
332 len -= elemlen;
333 pos += 2 + elemlen;
334 }
335
336 return true;
337}
338
55682965
JB		 339/* message building helper */
340static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
341 int flags, u8 cmd)
342{
343 /* since there is no private header just add the generic one */
344 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
345}
346
5dab3b8a
LR		 347static int nl80211_msg_put_channel(struct sk_buff *msg,
348 struct ieee80211_channel *chan)
349{
350 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
351 chan->center_freq);
352
353 if (chan->flags & IEEE80211_CHAN_DISABLED)
354 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
355 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
356 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
357 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
358 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
359 if (chan->flags & IEEE80211_CHAN_RADAR)
360 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
361
362 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
363 DBM_TO_MBM(chan->max_power));
364
365 return 0;
366
367 nla_put_failure:
368 return -ENOBUFS;
369}
370
55682965
JB		 371/* netlink command implementations */
372
b9454e83
JB		 373struct key_parse {
374 struct key_params p;
375 int idx;
e31b8213 376 int type;
b9454e83 377 bool def, defmgmt;
dbd2fd65 378 bool def_uni, def_multi;
b9454e83
JB		 379};
380
381static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
382{
383 struct nlattr *tb[NL80211_KEY_MAX + 1];
384 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
385 nl80211_key_policy);
386 if (err)
387 return err;
388
389 k->def = !!tb[NL80211_KEY_DEFAULT];
390 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
391
dbd2fd65
JB		 392 if (k->def) {
393 k->def_uni = true;
394 k->def_multi = true;
395 }
396 if (k->defmgmt)
397 k->def_multi = true;
398
b9454e83
JB		 399 if (tb[NL80211_KEY_IDX])
400 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
401
402 if (tb[NL80211_KEY_DATA]) {
403 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
404 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
405 }
406
407 if (tb[NL80211_KEY_SEQ]) {
408 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
409 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
410 }
411
412 if (tb[NL80211_KEY_CIPHER])
413 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
414
e31b8213
JB		 415 if (tb[NL80211_KEY_TYPE]) {
416 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
417 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
418 return -EINVAL;
419 }
420
dbd2fd65
JB		 421 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
422 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
423 int err = nla_parse_nested(kdt,
424 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
425 tb[NL80211_KEY_DEFAULT_TYPES],
426 nl80211_key_default_policy);
427 if (err)
428 return err;
429
430 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
431 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
432 }
433
b9454e83
JB		 434 return 0;
435}
436
437static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
438{
439 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
440 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
441 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
442 }
443
444 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
445 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
446 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
447 }
448
449 if (info->attrs[NL80211_ATTR_KEY_IDX])
450 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
451
452 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
453 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
454
455 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
456 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
457
dbd2fd65
JB		 458 if (k->def) {
459 k->def_uni = true;
460 k->def_multi = true;
461 }
462 if (k->defmgmt)
463 k->def_multi = true;
464
e31b8213
JB		 465 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
466 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
467 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
468 return -EINVAL;
469 }
470
dbd2fd65
JB		 471 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
472 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
473 int err = nla_parse_nested(
474 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
475 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
476 nl80211_key_default_policy);
477 if (err)
478 return err;
479
480 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
481 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
482 }
483
b9454e83
JB		 484 return 0;
485}
486
487static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
488{
489 int err;
490
491 memset(k, 0, sizeof(*k));
492 k->idx = -1;
e31b8213 493 k->type = -1;
b9454e83
JB		 494
495 if (info->attrs[NL80211_ATTR_KEY])
496 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
497 else
498 err = nl80211_parse_key_old(info, k);
499
500 if (err)
501 return err;
502
503 if (k->def && k->defmgmt)
504 return -EINVAL;
505
dbd2fd65
JB		 506 if (k->defmgmt) {
507 if (k->def_uni || !k->def_multi)
508 return -EINVAL;
509 }
510
b9454e83
JB		 511 if (k->idx != -1) {
512 if (k->defmgmt) {
513 if (k->idx < 4 || k->idx > 5)
514 return -EINVAL;
515 } else if (k->def) {
516 if (k->idx < 0 || k->idx > 3)
517 return -EINVAL;
518 } else {
519 if (k->idx < 0 || k->idx > 5)
520 return -EINVAL;
521 }
522 }
523
524 return 0;
525}
526
fffd0934
JB		 527static struct cfg80211_cached_keys *
528nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
529 struct nlattr *keys)
530{
531 struct key_parse parse;
532 struct nlattr *key;
533 struct cfg80211_cached_keys *result;
534 int rem, err, def = 0;
535
536 result = kzalloc(sizeof(*result), GFP_KERNEL);
537 if (!result)
538 return ERR_PTR(-ENOMEM);
539
540 result->def = -1;
541 result->defmgmt = -1;
542
543 nla_for_each_nested(key, keys, rem) {
544 memset(&parse, 0, sizeof(parse));
545 parse.idx = -1;
546
547 err = nl80211_parse_key_new(key, &parse);
548 if (err)
549 goto error;
550 err = -EINVAL;
551 if (!parse.p.key)
552 goto error;
553 if (parse.idx < 0 || parse.idx > 4)
554 goto error;
555 if (parse.def) {
556 if (def)
557 goto error;
558 def = 1;
559 result->def = parse.idx;
dbd2fd65
JB		 560 if (!parse.def_uni || !parse.def_multi)
561 goto error;
fffd0934
JB		 562 } else if (parse.defmgmt)
563 goto error;
564 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 565 parse.idx, false, NULL);
fffd0934
JB		 566 if (err)
567 goto error;
568 result->params[parse.idx].cipher = parse.p.cipher;
569 result->params[parse.idx].key_len = parse.p.key_len;
570 result->params[parse.idx].key = result->data[parse.idx];
571 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
572 }
573
574 return result;
575 error:
576 kfree(result);
577 return ERR_PTR(err);
578}
579
580static int nl80211_key_allowed(struct wireless_dev *wdev)
581{
582 ASSERT_WDEV_LOCK(wdev);
583
fffd0934
JB		 584 switch (wdev->iftype) {
585 case NL80211_IFTYPE_AP:
586 case NL80211_IFTYPE_AP_VLAN:
074ac8df 587 case NL80211_IFTYPE_P2P_GO:
ff973af7 588 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 589 break;
590 case NL80211_IFTYPE_ADHOC:
591 if (!wdev->current_bss)
592 return -ENOLINK;
593 break;
594 case NL80211_IFTYPE_STATION:
074ac8df 595 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 596 if (wdev->sme_state != CFG80211_SME_CONNECTED)
597 return -ENOLINK;
598 break;
599 default:
600 return -EINVAL;
601 }
602
603 return 0;
604}
605
7527a782
JB		 606static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
607{
608 struct nlattr *nl_modes = nla_nest_start(msg, attr);
609 int i;
610
611 if (!nl_modes)
612 goto nla_put_failure;
613
614 i = 0;
615 while (ifmodes) {
616 if (ifmodes & 1)
617 NLA_PUT_FLAG(msg, i);
618 ifmodes >>= 1;
619 i++;
620 }
621
622 nla_nest_end(msg, nl_modes);
623 return 0;
624
625nla_put_failure:
626 return -ENOBUFS;
627}
628
629static int nl80211_put_iface_combinations(struct wiphy *wiphy,
630 struct sk_buff *msg)
631{
632 struct nlattr *nl_combis;
633 int i, j;
634
635 nl_combis = nla_nest_start(msg,
636 NL80211_ATTR_INTERFACE_COMBINATIONS);
637 if (!nl_combis)
638 goto nla_put_failure;
639
640 for (i = 0; i < wiphy->n_iface_combinations; i++) {
641 const struct ieee80211_iface_combination *c;
642 struct nlattr *nl_combi, *nl_limits;
643
644 c = &wiphy->iface_combinations[i];
645
646 nl_combi = nla_nest_start(msg, i + 1);
647 if (!nl_combi)
648 goto nla_put_failure;
649
650 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
651 if (!nl_limits)
652 goto nla_put_failure;
653
654 for (j = 0; j < c->n_limits; j++) {
655 struct nlattr *nl_limit;
656
657 nl_limit = nla_nest_start(msg, j + 1);
658 if (!nl_limit)
659 goto nla_put_failure;
660 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
661 c->limits[j].max);
662 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
663 c->limits[j].types))
664 goto nla_put_failure;
665 nla_nest_end(msg, nl_limit);
666 }
667
668 nla_nest_end(msg, nl_limits);
669
670 if (c->beacon_int_infra_match)
671 NLA_PUT_FLAG(msg,
672 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
673 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
674 c->num_different_channels);
675 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
676 c->max_interfaces);
677
678 nla_nest_end(msg, nl_combi);
679 }
680
681 nla_nest_end(msg, nl_combis);
682
683 return 0;
684nla_put_failure:
685 return -ENOBUFS;
686}
687
55682965
JB		 688static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
689 struct cfg80211_registered_device *dev)
690{
691 void *hdr;
ee688b00
JB		 692 struct nlattr *nl_bands, *nl_band;
693 struct nlattr *nl_freqs, *nl_freq;
694 struct nlattr *nl_rates, *nl_rate;
8fdc621d 695 struct nlattr *nl_cmds;
ee688b00
JB		 696 enum ieee80211_band band;
697 struct ieee80211_channel *chan;
698 struct ieee80211_rate *rate;
699 int i;
2e161f78
JB		 700 const struct ieee80211_txrx_stypes *mgmt_stypes =
701 dev->wiphy.mgmt_stypes;
55682965
JB		 702
703 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
704 if (!hdr)
705 return -1;
706
b5850a7a 707 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 708 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 709
f5ea9120
JB		 710 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
711 cfg80211_rdev_list_generation);
712
b9a5f8ca
JM		 713 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
714 dev->wiphy.retry_short);
715 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
716 dev->wiphy.retry_long);
717 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
718 dev->wiphy.frag_threshold);
719 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
720 dev->wiphy.rts_threshold);
81077e82
LT		 721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
722 dev->wiphy.coverage_class);
2a519311
JB		 723 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
724 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 725 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
726 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 727 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
728 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 729 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
730 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
732 dev->wiphy.max_match_sets);
ee688b00 733
e31b8213
JB		 734 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
735 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 736 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
737 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 738 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
739 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 740 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
741 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 742 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
744 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 746
25e47c18
JB		 747 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
748 sizeof(u32) * dev->wiphy.n_cipher_suites,
749 dev->wiphy.cipher_suites);
750
67fbb16b
SO		 751 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
752 dev->wiphy.max_num_pmkids);
753
c0692b8f
JB		 754 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
755 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
756
39fd5de4
BR		 757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
758 dev->wiphy.available_antennas_tx);
759 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
760 dev->wiphy.available_antennas_rx);
761
87bbbe22
AN		 762 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
763 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
764 dev->wiphy.probe_resp_offload);
765
7f531e03
BR		 766 if ((dev->wiphy.available_antennas_tx ||
767 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 768 u32 tx_ant = 0, rx_ant = 0;
769 int res;
770 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
771 if (!res) {
772 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
773 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
774 }
775 }
776
7527a782
JB		 777 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
778 dev->wiphy.interface_modes))
f59ac048
LR		 779 goto nla_put_failure;
780
ee688b00
JB		 781 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
782 if (!nl_bands)
783 goto nla_put_failure;
784
785 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
786 if (!dev->wiphy.bands[band])
787 continue;
788
789 nl_band = nla_nest_start(msg, band);
790 if (!nl_band)
791 goto nla_put_failure;
792
d51626df
JB		 793 /* add HT info */
794 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
795 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
796 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
797 &dev->wiphy.bands[band]->ht_cap.mcs);
798 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
799 dev->wiphy.bands[band]->ht_cap.cap);
800 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
801 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
802 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
803 dev->wiphy.bands[band]->ht_cap.ampdu_density);
804 }
805
ee688b00
JB		 806 /* add frequencies */
807 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
808 if (!nl_freqs)
809 goto nla_put_failure;
810
811 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
812 nl_freq = nla_nest_start(msg, i);
813 if (!nl_freq)
814 goto nla_put_failure;
815
816 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 817
818 if (nl80211_msg_put_channel(msg, chan))
819 goto nla_put_failure;
e2f367f2 820
ee688b00
JB		 821 nla_nest_end(msg, nl_freq);
822 }
823
824 nla_nest_end(msg, nl_freqs);
825
826 /* add bitrates */
827 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
828 if (!nl_rates)
829 goto nla_put_failure;
830
831 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
832 nl_rate = nla_nest_start(msg, i);
833 if (!nl_rate)
834 goto nla_put_failure;
835
836 rate = &dev->wiphy.bands[band]->bitrates[i];
837 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
838 rate->bitrate);
839 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
840 NLA_PUT_FLAG(msg,
841 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
842
843 nla_nest_end(msg, nl_rate);
844 }
845
846 nla_nest_end(msg, nl_rates);
847
848 nla_nest_end(msg, nl_band);
849 }
850 nla_nest_end(msg, nl_bands);
851
8fdc621d
JB		 852 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
853 if (!nl_cmds)
854 goto nla_put_failure;
855
856 i = 0;
857#define CMD(op, n) \
858 do { \
859 if (dev->ops->op) { \
860 i++; \
861 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
862 } \
863 } while (0)
864
865 CMD(add_virtual_intf, NEW_INTERFACE);
866 CMD(change_virtual_intf, SET_INTERFACE);
867 CMD(add_key, NEW_KEY);
868 CMD(add_beacon, NEW_BEACON);
869 CMD(add_station, NEW_STATION);
870 CMD(add_mpath, NEW_MPATH);
24bdd9f4 871 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 872 CMD(change_bss, SET_BSS);
636a5d36
JM		 873 CMD(auth, AUTHENTICATE);
874 CMD(assoc, ASSOCIATE);
875 CMD(deauth, DEAUTHENTICATE);
876 CMD(disassoc, DISASSOCIATE);
04a773ad 877 CMD(join_ibss, JOIN_IBSS);
29cbe68c 878 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 879 CMD(set_pmksa, SET_PMKSA);
880 CMD(del_pmksa, DEL_PMKSA);
881 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 882 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 883 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 884 CMD(mgmt_tx, FRAME);
f7ca38df 885 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 886 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 887 i++;
888 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
889 }
f444de05 890 CMD(set_channel, SET_CHANNEL);
e8347eba 891 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 892 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
893 CMD(tdls_mgmt, TDLS_MGMT);
894 CMD(tdls_oper, TDLS_OPER);
895 }
807f8a8c
LC		 896 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
897 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 898 CMD(probe_client, PROBE_CLIENT);
5e760230
JB		 899 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
900 i++;
901 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
902 }
8fdc621d
JB		 903
904#undef CMD
b23aa676 905
6829c878 906 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 907 i++;
908 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
909 }
910
6829c878 911 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 912 i++;
913 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
914 }
915
8fdc621d
JB		 916 nla_nest_end(msg, nl_cmds);
917
a293911d
JB		 918 if (dev->ops->remain_on_channel)
919 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
920 dev->wiphy.max_remain_on_channel_duration);
921
d2da5878 922 if (dev->ops->mgmt_tx_cancel_wait)
f7ca38df
JB		 923 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
924
2e161f78
JB		 925 if (mgmt_stypes) {
926 u16 stypes;
927 struct nlattr *nl_ftypes, *nl_ifs;
928 enum nl80211_iftype ift;
929
930 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
931 if (!nl_ifs)
932 goto nla_put_failure;
933
934 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
935 nl_ftypes = nla_nest_start(msg, ift);
936 if (!nl_ftypes)
937 goto nla_put_failure;
938 i = 0;
939 stypes = mgmt_stypes[ift].tx;
940 while (stypes) {
941 if (stypes & 1)
942 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
943 (i << 4) | IEEE80211_FTYPE_MGMT);
944 stypes >>= 1;
945 i++;
946 }
947 nla_nest_end(msg, nl_ftypes);
948 }
949
74b70a4e
JB		 950 nla_nest_end(msg, nl_ifs);
951
2e161f78
JB		 952 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
953 if (!nl_ifs)
954 goto nla_put_failure;
955
956 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
957 nl_ftypes = nla_nest_start(msg, ift);
958 if (!nl_ftypes)
959 goto nla_put_failure;
960 i = 0;
961 stypes = mgmt_stypes[ift].rx;
962 while (stypes) {
963 if (stypes & 1)
964 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
965 (i << 4) | IEEE80211_FTYPE_MGMT);
966 stypes >>= 1;
967 i++;
968 }
969 nla_nest_end(msg, nl_ftypes);
970 }
971 nla_nest_end(msg, nl_ifs);
972 }
973
ff1b6e69
JB		 974 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
975 struct nlattr *nl_wowlan;
976
977 nl_wowlan = nla_nest_start(msg,
978 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
979 if (!nl_wowlan)
980 goto nla_put_failure;
981
982 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
983 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
984 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
985 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
986 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
987 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 988 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
989 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
990 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
991 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
992 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
993 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
994 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
995 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
996 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
997 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 998 if (dev->wiphy.wowlan.n_patterns) {
999 struct nl80211_wowlan_pattern_support pat = {
1000 .max_patterns = dev->wiphy.wowlan.n_patterns,
1001 .min_pattern_len =
1002 dev->wiphy.wowlan.pattern_min_len,
1003 .max_pattern_len =
1004 dev->wiphy.wowlan.pattern_max_len,
1005 };
1006 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1007 sizeof(pat), &pat);
1008 }
1009
1010 nla_nest_end(msg, nl_wowlan);
1011 }
1012
7527a782
JB		 1013 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1014 dev->wiphy.software_iftypes))
1015 goto nla_put_failure;
1016
1017 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1018 goto nla_put_failure;
1019
562a7480
JB		 1020 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1021 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1022 dev->wiphy.ap_sme_capa);
1023
1f074bd8
JB		 1024 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1025
55682965
JB		 1026 return genlmsg_end(msg, hdr);
1027
1028 nla_put_failure:
bc3ed28c
TG		 1029 genlmsg_cancel(msg, hdr);
1030 return -EMSGSIZE;
55682965
JB		 1031}
1032
1033static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1034{
1035 int idx = 0;
1036 int start = cb->args[0];
1037 struct cfg80211_registered_device *dev;
1038
a1794390 1039 mutex_lock(&cfg80211_mutex);
79c97e97 1040 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1041 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1042 continue;
b4637271 1043 if (++idx <= start)
55682965
JB		 1044 continue;
1045 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1046 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1047 dev) < 0) {
1048 idx--;
55682965 1049 break;
b4637271 1050 }
55682965 1051 }
a1794390 1052 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1053
1054 cb->args[0] = idx;
1055
1056 return skb->len;
1057}
1058
1059static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1060{
1061 struct sk_buff *msg;
4c476991 1062 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1063
fd2120ca 1064 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1065 if (!msg)
4c476991 1066 return -ENOMEM;
55682965 1067
4c476991
JB		 1068 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1069 nlmsg_free(msg);
1070 return -ENOBUFS;
1071 }
55682965 1072
134e6375 1073 return genlmsg_reply(msg, info);
55682965
JB		 1074}
1075
31888487
JM		 1076static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1077 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1078 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1079 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1080 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1081 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1082};
1083
1084static int parse_txq_params(struct nlattr *tb[],
1085 struct ieee80211_txq_params *txq_params)
1086{
1087 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1088 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1089 !tb[NL80211_TXQ_ATTR_AIFS])
1090 return -EINVAL;
1091
1092 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1093 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1094 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1095 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1096 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1097
1098 return 0;
1099}
1100
f444de05
JB		 1101static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1102{
1103 /*
1104 * You can only set the channel explicitly for AP, mesh
1105 * and WDS type interfaces; all others have their channel
1106 * managed via their respective "establish a connection"
1107 * command (connect, join, ...)
1108 *
1109 * Monitors are special as they are normally slaved to
1110 * whatever else is going on, so they behave as though
1111 * you tried setting the wiphy channel itself.
1112 */
1113 return !wdev ||
1114 wdev->iftype == NL80211_IFTYPE_AP ||
1115 wdev->iftype == NL80211_IFTYPE_WDS ||
1116 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1117 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1118 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1119}
1120
1121static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1122 struct wireless_dev *wdev,
1123 struct genl_info *info)
1124{
1125 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1126 u32 freq;
1127 int result;
1128
1129 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1130 return -EINVAL;
1131
1132 if (!nl80211_can_set_dev_channel(wdev))
1133 return -EOPNOTSUPP;
1134
1135 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1136 channel_type = nla_get_u32(info->attrs[
1137 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1138 if (channel_type != NL80211_CHAN_NO_HT &&
1139 channel_type != NL80211_CHAN_HT20 &&
1140 channel_type != NL80211_CHAN_HT40PLUS &&
1141 channel_type != NL80211_CHAN_HT40MINUS)
1142 return -EINVAL;
1143 }
1144
1145 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1146
1147 mutex_lock(&rdev->devlist_mtx);
1148 if (wdev) {
1149 wdev_lock(wdev);
1150 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1151 wdev_unlock(wdev);
1152 } else {
1153 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1154 }
1155 mutex_unlock(&rdev->devlist_mtx);
1156
1157 return result;
1158}
1159
1160static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1161{
4c476991
JB		 1162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1163 struct net_device *netdev = info->user_ptr[1];
f444de05 1164
4c476991 1165 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1166}
1167
e8347eba
BJ		 1168static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1169{
43b19952
JB		 1170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1171 struct net_device *dev = info->user_ptr[1];
1172 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1173 const u8 *bssid;
e8347eba
BJ		 1174
1175 if (!info->attrs[NL80211_ATTR_MAC])
1176 return -EINVAL;
1177
43b19952
JB		 1178 if (netif_running(dev))
1179 return -EBUSY;
e8347eba 1180
43b19952
JB		 1181 if (!rdev->ops->set_wds_peer)
1182 return -EOPNOTSUPP;
e8347eba 1183
43b19952
JB		 1184 if (wdev->iftype != NL80211_IFTYPE_WDS)
1185 return -EOPNOTSUPP;
e8347eba
BJ		 1186
1187 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1188 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1189}
1190
1191
55682965
JB		 1192static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1193{
1194 struct cfg80211_registered_device *rdev;
f444de05
JB		 1195 struct net_device *netdev = NULL;
1196 struct wireless_dev *wdev;
a1e567c8 1197 int result = 0, rem_txq_params = 0;
31888487 1198 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1199 u32 changed;
1200 u8 retry_short = 0, retry_long = 0;
1201 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1202 u8 coverage_class = 0;
55682965 1203
f444de05
JB		 1204 /*
1205 * Try to find the wiphy and netdev. Normally this
1206 * function shouldn't need the netdev, but this is
1207 * done for backward compatibility -- previously
1208 * setting the channel was done per wiphy, but now
1209 * it is per netdev. Previous userland like hostapd
1210 * also passed a netdev to set_wiphy, so that it is
1211 * possible to let that go to the right netdev!
1212 */
4bbf4d56
JB		 1213 mutex_lock(&cfg80211_mutex);
1214
f444de05
JB		 1215 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1216 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1217
1218 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1219 if (netdev && netdev->ieee80211_ptr) {
1220 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1221 mutex_lock(&rdev->mtx);
1222 } else
1223 netdev = NULL;
4bbf4d56
JB		 1224 }
1225
f444de05
JB		 1226 if (!netdev) {
1227 rdev = __cfg80211_rdev_from_info(info);
1228 if (IS_ERR(rdev)) {
1229 mutex_unlock(&cfg80211_mutex);
4c476991 1230 return PTR_ERR(rdev);
f444de05
JB		 1231 }
1232 wdev = NULL;
1233 netdev = NULL;
1234 result = 0;
1235
1236 mutex_lock(&rdev->mtx);
1237 } else if (netif_running(netdev) &&
1238 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1239 wdev = netdev->ieee80211_ptr;
1240 else
1241 wdev = NULL;
1242
1243 /*
1244 * end workaround code, by now the rdev is available
1245 * and locked, and wdev may or may not be NULL.
1246 */
4bbf4d56
JB		 1247
1248 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1249 result = cfg80211_dev_rename(
1250 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1251
1252 mutex_unlock(&cfg80211_mutex);
1253
1254 if (result)
1255 goto bad_res;
31888487
JM		 1256
1257 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1258 struct ieee80211_txq_params txq_params;
1259 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1260
1261 if (!rdev->ops->set_txq_params) {
1262 result = -EOPNOTSUPP;
1263 goto bad_res;
1264 }
1265
f70f01c2
EP		 1266 if (!netdev) {
1267 result = -EINVAL;
1268 goto bad_res;
1269 }
1270
133a3ff2
JB		 1271 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1272 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1273 result = -EINVAL;
1274 goto bad_res;
1275 }
1276
31888487
JM		 1277 nla_for_each_nested(nl_txq_params,
1278 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1279 rem_txq_params) {
1280 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1281 nla_data(nl_txq_params),
1282 nla_len(nl_txq_params),
1283 txq_params_policy);
1284 result = parse_txq_params(tb, &txq_params);
1285 if (result)
1286 goto bad_res;
1287
1288 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1289 netdev,
31888487
JM		 1290 &txq_params);
1291 if (result)
1292 goto bad_res;
1293 }
1294 }
55682965 1295
72bdcf34 1296 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1297 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1298 if (result)
1299 goto bad_res;
1300 }
1301
98d2ff8b
JO		 1302 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1303 enum nl80211_tx_power_setting type;
1304 int idx, mbm = 0;
1305
1306 if (!rdev->ops->set_tx_power) {
60ea385f 1307 result = -EOPNOTSUPP;
98d2ff8b
JO		 1308 goto bad_res;
1309 }
1310
1311 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1312 type = nla_get_u32(info->attrs[idx]);
1313
1314 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1315 (type != NL80211_TX_POWER_AUTOMATIC)) {
1316 result = -EINVAL;
1317 goto bad_res;
1318 }
1319
1320 if (type != NL80211_TX_POWER_AUTOMATIC) {
1321 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1322 mbm = nla_get_u32(info->attrs[idx]);
1323 }
1324
1325 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1326 if (result)
1327 goto bad_res;
1328 }
1329
afe0cbf8
BR		 1330 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1331 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1332 u32 tx_ant, rx_ant;
7f531e03
BR		 1333 if ((!rdev->wiphy.available_antennas_tx &&
1334 !rdev->wiphy.available_antennas_rx) ||
1335 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1336 result = -EOPNOTSUPP;
1337 goto bad_res;
1338 }
1339
1340 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1341 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1342
a7ffac95 1343 /* reject antenna configurations which don't match the
7f531e03
BR		 1344 * available antenna masks, except for the "all" mask */
1345 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1346 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1347 result = -EINVAL;
1348 goto bad_res;
1349 }
1350
7f531e03
BR		 1351 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1352 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1353
afe0cbf8
BR		 1354 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1355 if (result)
1356 goto bad_res;
1357 }
1358
b9a5f8ca
JM		 1359 changed = 0;
1360
1361 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1362 retry_short = nla_get_u8(
1363 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1364 if (retry_short == 0) {
1365 result = -EINVAL;
1366 goto bad_res;
1367 }
1368 changed |= WIPHY_PARAM_RETRY_SHORT;
1369 }
1370
1371 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1372 retry_long = nla_get_u8(
1373 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1374 if (retry_long == 0) {
1375 result = -EINVAL;
1376 goto bad_res;
1377 }
1378 changed |= WIPHY_PARAM_RETRY_LONG;
1379 }
1380
1381 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1382 frag_threshold = nla_get_u32(
1383 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1384 if (frag_threshold < 256) {
1385 result = -EINVAL;
1386 goto bad_res;
1387 }
1388 if (frag_threshold != (u32) -1) {
1389 /*
1390 * Fragments (apart from the last one) are required to
1391 * have even length. Make the fragmentation code
1392 * simpler by stripping LSB should someone try to use
1393 * odd threshold value.
1394 */
1395 frag_threshold &= ~0x1;
1396 }
1397 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1398 }
1399
1400 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1401 rts_threshold = nla_get_u32(
1402 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1403 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1404 }
1405
81077e82
LT		 1406 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1407 coverage_class = nla_get_u8(
1408 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1409 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1410 }
1411
b9a5f8ca
JM		 1412 if (changed) {
1413 u8 old_retry_short, old_retry_long;
1414 u32 old_frag_threshold, old_rts_threshold;
81077e82 1415 u8 old_coverage_class;
b9a5f8ca
JM		 1416
1417 if (!rdev->ops->set_wiphy_params) {
1418 result = -EOPNOTSUPP;
1419 goto bad_res;
1420 }
1421
1422 old_retry_short = rdev->wiphy.retry_short;
1423 old_retry_long = rdev->wiphy.retry_long;
1424 old_frag_threshold = rdev->wiphy.frag_threshold;
1425 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1426 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1427
1428 if (changed & WIPHY_PARAM_RETRY_SHORT)
1429 rdev->wiphy.retry_short = retry_short;
1430 if (changed & WIPHY_PARAM_RETRY_LONG)
1431 rdev->wiphy.retry_long = retry_long;
1432 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1433 rdev->wiphy.frag_threshold = frag_threshold;
1434 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1435 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1436 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1437 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1438
1439 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1440 if (result) {
1441 rdev->wiphy.retry_short = old_retry_short;
1442 rdev->wiphy.retry_long = old_retry_long;
1443 rdev->wiphy.frag_threshold = old_frag_threshold;
1444 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1445 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1446 }
1447 }
72bdcf34 1448
306d6112 1449 bad_res:
4bbf4d56 1450 mutex_unlock(&rdev->mtx);
f444de05
JB		 1451 if (netdev)
1452 dev_put(netdev);
55682965
JB		 1453 return result;
1454}
1455
1456
1457static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1458 struct cfg80211_registered_device *rdev,
55682965
JB		 1459 struct net_device *dev)
1460{
1461 void *hdr;
1462
1463 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1464 if (!hdr)
1465 return -1;
1466
1467 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1468 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1469 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1470 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1471
1472 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1473 rdev->devlist_generation ^
1474 (cfg80211_rdev_list_generation << 2));
1475
55682965
JB		 1476 return genlmsg_end(msg, hdr);
1477
1478 nla_put_failure:
bc3ed28c
TG		 1479 genlmsg_cancel(msg, hdr);
1480 return -EMSGSIZE;
55682965
JB		 1481}
1482
1483static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1484{
1485 int wp_idx = 0;
1486 int if_idx = 0;
1487 int wp_start = cb->args[0];
1488 int if_start = cb->args[1];
f5ea9120 1489 struct cfg80211_registered_device *rdev;
55682965
JB		 1490 struct wireless_dev *wdev;
1491
a1794390 1492 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1493 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1494 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1495 continue;
bba95fef
JB		 1496 if (wp_idx < wp_start) {
1497 wp_idx++;
55682965 1498 continue;
bba95fef 1499 }
55682965
JB		 1500 if_idx = 0;
1501
f5ea9120
JB		 1502 mutex_lock(&rdev->devlist_mtx);
1503 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1504 if (if_idx < if_start) {
1505 if_idx++;
55682965 1506 continue;
bba95fef 1507 }
55682965
JB		 1508 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1509 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1510 rdev, wdev->netdev) < 0) {
1511 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1512 goto out;
1513 }
1514 if_idx++;
55682965 1515 }
f5ea9120 1516 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1517
1518 wp_idx++;
55682965 1519 }
bba95fef 1520 out:
a1794390 1521 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1522
1523 cb->args[0] = wp_idx;
1524 cb->args[1] = if_idx;
1525
1526 return skb->len;
1527}
1528
1529static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1530{
1531 struct sk_buff *msg;
4c476991
JB		 1532 struct cfg80211_registered_device *dev = info->user_ptr[0];
1533 struct net_device *netdev = info->user_ptr[1];
55682965 1534
fd2120ca 1535 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1536 if (!msg)
4c476991 1537 return -ENOMEM;
55682965 1538
d726405a 1539 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1540 dev, netdev) < 0) {
1541 nlmsg_free(msg);
1542 return -ENOBUFS;
1543 }
55682965 1544
134e6375 1545 return genlmsg_reply(msg, info);
55682965
JB		 1546}
1547
66f7ac50
MW		 1548static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1549 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1550 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1551 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1552 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1553 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1554};
1555
1556static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1557{
1558 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1559 int flag;
1560
1561 *mntrflags = 0;
1562
1563 if (!nla)
1564 return -EINVAL;
1565
1566 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1567 nla, mntr_flags_policy))
1568 return -EINVAL;
1569
1570 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1571 if (flags[flag])
1572 *mntrflags |= (1<<flag);
1573
1574 return 0;
1575}
1576
9bc383de 1577static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1578 struct net_device *netdev, u8 use_4addr,
1579 enum nl80211_iftype iftype)
9bc383de 1580{
ad4bb6f8 1581 if (!use_4addr) {
f350a0a8 1582 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1583 return -EBUSY;
9bc383de 1584 return 0;
ad4bb6f8 1585 }
9bc383de
JB		 1586
1587 switch (iftype) {
1588 case NL80211_IFTYPE_AP_VLAN:
1589 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1590 return 0;
1591 break;
1592 case NL80211_IFTYPE_STATION:
1593 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1594 return 0;
1595 break;
1596 default:
1597 break;
1598 }
1599
1600 return -EOPNOTSUPP;
1601}
1602
55682965
JB		 1603static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1604{
4c476991 1605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1606 struct vif_params params;
e36d56b6 1607 int err;
04a773ad 1608 enum nl80211_iftype otype, ntype;
4c476991 1609 struct net_device *dev = info->user_ptr[1];
92ffe055 1610 u32 _flags, *flags = NULL;
ac7f9cfa 1611 bool change = false;
55682965 1612
2ec600d6
LCC		 1613 memset(&params, 0, sizeof(params));
1614
04a773ad 1615 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1616
723b038d 1617 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1618 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1619 if (otype != ntype)
ac7f9cfa 1620 change = true;
4c476991
JB		 1621 if (ntype > NL80211_IFTYPE_MAX)
1622 return -EINVAL;
723b038d
JB		 1623 }
1624
92ffe055 1625 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1626 struct wireless_dev *wdev = dev->ieee80211_ptr;
1627
4c476991
JB		 1628 if (ntype != NL80211_IFTYPE_MESH_POINT)
1629 return -EINVAL;
29cbe68c
JB		 1630 if (netif_running(dev))
1631 return -EBUSY;
1632
1633 wdev_lock(wdev);
1634 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1635 IEEE80211_MAX_MESH_ID_LEN);
1636 wdev->mesh_id_up_len =
1637 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1638 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1639 wdev->mesh_id_up_len);
1640 wdev_unlock(wdev);
2ec600d6
LCC		 1641 }
1642
8b787643
FF		 1643 if (info->attrs[NL80211_ATTR_4ADDR]) {
1644 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1645 change = true;
ad4bb6f8 1646 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1647 if (err)
4c476991 1648 return err;
8b787643
FF		 1649 } else {
1650 params.use_4addr = -1;
1651 }
1652
92ffe055 1653 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1654 if (ntype != NL80211_IFTYPE_MONITOR)
1655 return -EINVAL;
92ffe055
JB		 1656 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1657 &_flags);
ac7f9cfa 1658 if (err)
4c476991 1659 return err;
ac7f9cfa
JB		 1660
1661 flags = &_flags;
1662 change = true;
92ffe055 1663 }
3b85875a 1664
ac7f9cfa 1665 if (change)
3d54d255 1666 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1667 else
1668 err = 0;
60719ffd 1669
9bc383de
JB		 1670 if (!err && params.use_4addr != -1)
1671 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1672
55682965
JB		 1673 return err;
1674}
1675
1676static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1677{
4c476991 1678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1679 struct vif_params params;
f9e10ce4 1680 struct net_device *dev;
55682965
JB		 1681 int err;
1682 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1683 u32 flags;
55682965 1684
2ec600d6
LCC		 1685 memset(&params, 0, sizeof(params));
1686
55682965
JB		 1687 if (!info->attrs[NL80211_ATTR_IFNAME])
1688 return -EINVAL;
1689
1690 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1691 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1692 if (type > NL80211_IFTYPE_MAX)
1693 return -EINVAL;
1694 }
1695
79c97e97 1696 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1697 !(rdev->wiphy.interface_modes & (1 << type)))
1698 return -EOPNOTSUPP;
55682965 1699
9bc383de 1700 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1701 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1702 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1703 if (err)
4c476991 1704 return err;
9bc383de 1705 }
8b787643 1706
66f7ac50
MW		 1707 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1708 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1709 &flags);
f9e10ce4 1710 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1711 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1712 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1713 if (IS_ERR(dev))
1714 return PTR_ERR(dev);
2ec600d6 1715
29cbe68c
JB		 1716 if (type == NL80211_IFTYPE_MESH_POINT &&
1717 info->attrs[NL80211_ATTR_MESH_ID]) {
1718 struct wireless_dev *wdev = dev->ieee80211_ptr;
1719
1720 wdev_lock(wdev);
1721 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1722 IEEE80211_MAX_MESH_ID_LEN);
1723 wdev->mesh_id_up_len =
1724 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1725 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1726 wdev->mesh_id_up_len);
1727 wdev_unlock(wdev);
1728 }
1729
f9e10ce4 1730 return 0;
55682965
JB		 1731}
1732
1733static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1734{
4c476991
JB		 1735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1736 struct net_device *dev = info->user_ptr[1];
55682965 1737
4c476991
JB		 1738 if (!rdev->ops->del_virtual_intf)
1739 return -EOPNOTSUPP;
55682965 1740
4c476991 1741 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1742}
1743
41ade00f
JB		 1744struct get_key_cookie {
1745 struct sk_buff *msg;
1746 int error;
b9454e83 1747 int idx;
41ade00f
JB		 1748};
1749
1750static void get_key_callback(void *c, struct key_params *params)
1751{
b9454e83 1752 struct nlattr *key;
41ade00f
JB		 1753 struct get_key_cookie *cookie = c;
1754
1755 if (params->key)
1756 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1757 params->key_len, params->key);
1758
1759 if (params->seq)
1760 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1761 params->seq_len, params->seq);
1762
1763 if (params->cipher)
1764 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1765 params->cipher);
1766
b9454e83
JB		 1767 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1768 if (!key)
1769 goto nla_put_failure;
1770
1771 if (params->key)
1772 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1773 params->key_len, params->key);
1774
1775 if (params->seq)
1776 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1777 params->seq_len, params->seq);
1778
1779 if (params->cipher)
1780 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1781 params->cipher);
1782
1783 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1784
1785 nla_nest_end(cookie->msg, key);
1786
41ade00f
JB		 1787 return;
1788 nla_put_failure:
1789 cookie->error = 1;
1790}
1791
1792static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1793{
4c476991 1794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1795 int err;
4c476991 1796 struct net_device *dev = info->user_ptr[1];
41ade00f 1797 u8 key_idx = 0;
e31b8213
JB		 1798 const u8 *mac_addr = NULL;
1799 bool pairwise;
41ade00f
JB		 1800 struct get_key_cookie cookie = {
1801 .error = 0,
1802 };
1803 void *hdr;
1804 struct sk_buff *msg;
1805
1806 if (info->attrs[NL80211_ATTR_KEY_IDX])
1807 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1808
3cfcf6ac 1809 if (key_idx > 5)
41ade00f
JB		 1810 return -EINVAL;
1811
1812 if (info->attrs[NL80211_ATTR_MAC])
1813 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1814
e31b8213
JB		 1815 pairwise = !!mac_addr;
1816 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1817 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1818 if (kt >= NUM_NL80211_KEYTYPES)
1819 return -EINVAL;
1820 if (kt != NL80211_KEYTYPE_GROUP &&
1821 kt != NL80211_KEYTYPE_PAIRWISE)
1822 return -EINVAL;
1823 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1824 }
1825
4c476991
JB		 1826 if (!rdev->ops->get_key)
1827 return -EOPNOTSUPP;
41ade00f 1828
fd2120ca 1829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1830 if (!msg)
1831 return -ENOMEM;
41ade00f
JB		 1832
1833 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1834 NL80211_CMD_NEW_KEY);
4c476991
JB		 1835 if (IS_ERR(hdr))
1836 return PTR_ERR(hdr);
41ade00f
JB		 1837
1838 cookie.msg = msg;
b9454e83 1839 cookie.idx = key_idx;
41ade00f
JB		 1840
1841 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1842 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1843 if (mac_addr)
1844 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1845
e31b8213
JB		 1846 if (pairwise && mac_addr &&
1847 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1848 return -ENOENT;
1849
1850 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1851 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1852
1853 if (err)
6c95e2a2 1854 goto free_msg;
41ade00f
JB		 1855
1856 if (cookie.error)
1857 goto nla_put_failure;
1858
1859 genlmsg_end(msg, hdr);
4c476991 1860 return genlmsg_reply(msg, info);
41ade00f
JB		 1861
1862 nla_put_failure:
1863 err = -ENOBUFS;
6c95e2a2 1864 free_msg:
41ade00f 1865 nlmsg_free(msg);
41ade00f
JB		 1866 return err;
1867}
1868
1869static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1870{
4c476991 1871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1872 struct key_parse key;
41ade00f 1873 int err;
4c476991 1874 struct net_device *dev = info->user_ptr[1];
41ade00f 1875
b9454e83
JB		 1876 err = nl80211_parse_key(info, &key);
1877 if (err)
1878 return err;
41ade00f 1879
b9454e83 1880 if (key.idx < 0)
41ade00f
JB		 1881 return -EINVAL;
1882
b9454e83
JB		 1883 /* only support setting default key */
1884 if (!key.def && !key.defmgmt)
41ade00f
JB		 1885 return -EINVAL;
1886
dbd2fd65 1887 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1888
dbd2fd65
JB		 1889 if (key.def) {
1890 if (!rdev->ops->set_default_key) {
1891 err = -EOPNOTSUPP;
1892 goto out;
1893 }
41ade00f 1894
dbd2fd65
JB		 1895 err = nl80211_key_allowed(dev->ieee80211_ptr);
1896 if (err)
1897 goto out;
1898
dbd2fd65
JB		 1899 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1900 key.def_uni, key.def_multi);
1901
1902 if (err)
1903 goto out;
fffd0934 1904
3d23e349 1905#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1906 dev->ieee80211_ptr->wext.default_key = key.idx;
1907#endif
1908 } else {
1909 if (key.def_uni || !key.def_multi) {
1910 err = -EINVAL;
1911 goto out;
1912 }
1913
1914 if (!rdev->ops->set_default_mgmt_key) {
1915 err = -EOPNOTSUPP;
1916 goto out;
1917 }
1918
1919 err = nl80211_key_allowed(dev->ieee80211_ptr);
1920 if (err)
1921 goto out;
1922
1923 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1924 dev, key.idx);
1925 if (err)
1926 goto out;
1927
1928#ifdef CONFIG_CFG80211_WEXT
1929 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1930#endif
dbd2fd65
JB		 1931 }
1932
1933 out:
fffd0934 1934 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1935
41ade00f
JB		 1936 return err;
1937}
1938
1939static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1940{
4c476991 1941 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1942 int err;
4c476991 1943 struct net_device *dev = info->user_ptr[1];
b9454e83 1944 struct key_parse key;
e31b8213 1945 const u8 *mac_addr = NULL;
41ade00f 1946
b9454e83
JB		 1947 err = nl80211_parse_key(info, &key);
1948 if (err)
1949 return err;
41ade00f 1950
b9454e83 1951 if (!key.p.key)
41ade00f
JB		 1952 return -EINVAL;
1953
41ade00f
JB		 1954 if (info->attrs[NL80211_ATTR_MAC])
1955 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1956
e31b8213
JB		 1957 if (key.type == -1) {
1958 if (mac_addr)
1959 key.type = NL80211_KEYTYPE_PAIRWISE;
1960 else
1961 key.type = NL80211_KEYTYPE_GROUP;
1962 }
1963
1964 /* for now */
1965 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1966 key.type != NL80211_KEYTYPE_GROUP)
1967 return -EINVAL;
1968
4c476991
JB		 1969 if (!rdev->ops->add_key)
1970 return -EOPNOTSUPP;
25e47c18 1971
e31b8213
JB		 1972 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1973 key.type == NL80211_KEYTYPE_PAIRWISE,
1974 mac_addr))
4c476991 1975 return -EINVAL;
41ade00f 1976
fffd0934
JB		 1977 wdev_lock(dev->ieee80211_ptr);
1978 err = nl80211_key_allowed(dev->ieee80211_ptr);
1979 if (!err)
1980 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1981 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1982 mac_addr, &key.p);
1983 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1984
41ade00f
JB		 1985 return err;
1986}
1987
1988static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1989{
4c476991 1990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1991 int err;
4c476991 1992 struct net_device *dev = info->user_ptr[1];
41ade00f 1993 u8 *mac_addr = NULL;
b9454e83 1994 struct key_parse key;
41ade00f 1995
b9454e83
JB		 1996 err = nl80211_parse_key(info, &key);
1997 if (err)
1998 return err;
41ade00f
JB		 1999
2000 if (info->attrs[NL80211_ATTR_MAC])
2001 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2002
e31b8213
JB		 2003 if (key.type == -1) {
2004 if (mac_addr)
2005 key.type = NL80211_KEYTYPE_PAIRWISE;
2006 else
2007 key.type = NL80211_KEYTYPE_GROUP;
2008 }
2009
2010 /* for now */
2011 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2012 key.type != NL80211_KEYTYPE_GROUP)
2013 return -EINVAL;
2014
4c476991
JB		 2015 if (!rdev->ops->del_key)
2016 return -EOPNOTSUPP;
41ade00f 2017
fffd0934
JB		 2018 wdev_lock(dev->ieee80211_ptr);
2019 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2020
2021 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2022 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2023 err = -ENOENT;
2024
fffd0934 2025 if (!err)
e31b8213
JB		 2026 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2027 key.type == NL80211_KEYTYPE_PAIRWISE,
2028 mac_addr);
41ade00f 2029
3d23e349 2030#ifdef CONFIG_CFG80211_WEXT
08645126 2031 if (!err) {
b9454e83 2032 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2033 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2034 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2035 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2036 }
2037#endif
fffd0934 2038 wdev_unlock(dev->ieee80211_ptr);
08645126 2039
41ade00f
JB		 2040 return err;
2041}
2042
ed1b6cc7
JB		 2043static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2044{
2045 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2046 struct beacon_parameters *info);
4c476991
JB		 2047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2048 struct net_device *dev = info->user_ptr[1];
56d1893d 2049 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2050 struct beacon_parameters params;
56d1893d 2051 int haveinfo = 0, err;
ed1b6cc7 2052
9946ecfb
JM		 2053 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2054 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2055 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2056 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2057 return -EINVAL;
2058
074ac8df 2059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2061 return -EOPNOTSUPP;
eec60b03 2062
56d1893d
JB		 2063 memset(&params, 0, sizeof(params));
2064
ed1b6cc7
JB		 2065 switch (info->genlhdr->cmd) {
2066 case NL80211_CMD_NEW_BEACON:
2067 /* these are required for NEW_BEACON */
2068 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2069 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2070 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2071 return -EINVAL;
ed1b6cc7 2072
56d1893d
JB		 2073 params.interval =
2074 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2075 params.dtim_period =
2076 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2077
2078 err = cfg80211_validate_beacon_int(rdev, params.interval);
2079 if (err)
2080 return err;
2081
32e9de84
JM		 2082 /*
2083 * In theory, some of these attributes could be required for
2084 * NEW_BEACON, but since they were not used when the command was
2085 * originally added, keep them optional for old user space
2086 * programs to work with drivers that do not need the additional
2087 * information.
2088 */
2089 if (info->attrs[NL80211_ATTR_SSID]) {
2090 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2091 params.ssid_len =
2092 nla_len(info->attrs[NL80211_ATTR_SSID]);
2093 if (params.ssid_len == 0 ||
2094 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2095 return -EINVAL;
2096 }
2097
2098 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2099 params.hidden_ssid = nla_get_u32(
2100 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2101 if (params.hidden_ssid !=
2102 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2103 params.hidden_ssid !=
2104 NL80211_HIDDEN_SSID_ZERO_LEN &&
2105 params.hidden_ssid !=
2106 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2107 return -EINVAL;
2108 }
2109
5fb628e9
JM		 2110 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2111
2112 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2113 params.auth_type = nla_get_u32(
2114 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2115 if (!nl80211_valid_auth_type(params.auth_type))
2116 return -EINVAL;
2117 } else
2118 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2119
2120 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2121 NL80211_MAX_NR_CIPHER_SUITES);
2122 if (err)
2123 return err;
2124
79c97e97 2125 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2126 break;
2127 case NL80211_CMD_SET_BEACON:
79c97e97 2128 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2129 break;
2130 default:
2131 WARN_ON(1);
4c476991 2132 return -EOPNOTSUPP;
ed1b6cc7
JB		 2133 }
2134
4c476991
JB		 2135 if (!call)
2136 return -EOPNOTSUPP;
ed1b6cc7 2137
ed1b6cc7
JB		 2138 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2139 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2140 params.head_len =
2141 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2142 haveinfo = 1;
2143 }
2144
2145 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2146 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2147 params.tail_len =
2148 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2149 haveinfo = 1;
2150 }
2151
4c476991
JB		 2152 if (!haveinfo)
2153 return -EINVAL;
3b85875a 2154
9946ecfb
JM		 2155 if (info->attrs[NL80211_ATTR_IE]) {
2156 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2157 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2158 }
2159
2160 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2161 params.proberesp_ies =
2162 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2163 params.proberesp_ies_len =
2164 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2165 }
2166
2167 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2168 params.assocresp_ies =
2169 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2170 params.assocresp_ies_len =
2171 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2172 }
2173
56d1893d
JB		 2174 err = call(&rdev->wiphy, dev, &params);
2175 if (!err && params.interval)
2176 wdev->beacon_interval = params.interval;
2177 return err;
ed1b6cc7
JB		 2178}
2179
2180static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2181{
4c476991
JB		 2182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2183 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2184 struct wireless_dev *wdev = dev->ieee80211_ptr;
2185 int err;
ed1b6cc7 2186
4c476991
JB		 2187 if (!rdev->ops->del_beacon)
2188 return -EOPNOTSUPP;
ed1b6cc7 2189
074ac8df 2190 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2191 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2192 return -EOPNOTSUPP;
3b85875a 2193
56d1893d
JB		 2194 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2195 if (!err)
2196 wdev->beacon_interval = 0;
2197 return err;
ed1b6cc7
JB		 2198}
2199
5727ef1b
JB		 2200static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2201 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2202 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2203 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2204 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2205 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2206};
2207
eccb8e8f
JB		 2208static int parse_station_flags(struct genl_info *info,
2209 struct station_parameters *params)
5727ef1b
JB		 2210{
2211 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2212 struct nlattr *nla;
5727ef1b
JB		 2213 int flag;
2214
eccb8e8f
JB		 2215 /*
2216 * Try parsing the new attribute first so userspace
2217 * can specify both for older kernels.
2218 */
2219 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2220 if (nla) {
2221 struct nl80211_sta_flag_update *sta_flags;
2222
2223 sta_flags = nla_data(nla);
2224 params->sta_flags_mask = sta_flags->mask;
2225 params->sta_flags_set = sta_flags->set;
2226 if ((params->sta_flags_mask |
2227 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2228 return -EINVAL;
2229 return 0;
2230 }
2231
2232 /* if present, parse the old attribute */
5727ef1b 2233
eccb8e8f 2234 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2235 if (!nla)
2236 return 0;
2237
2238 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2239 nla, sta_flags_policy))
2240 return -EINVAL;
2241
eccb8e8f
JB		 2242 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2243 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2244
2245 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2246 if (flags[flag])
eccb8e8f 2247 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2248
2249 return 0;
2250}
2251
c8dcfd8a
FF		 2252static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2253 int attr)
2254{
2255 struct nlattr *rate;
2256 u16 bitrate;
2257
2258 rate = nla_nest_start(msg, attr);
2259 if (!rate)
2260 goto nla_put_failure;
2261
2262 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2263 bitrate = cfg80211_calculate_bitrate(info);
2264 if (bitrate > 0)
2265 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2266
2267 if (info->flags & RATE_INFO_FLAGS_MCS)
2268 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2269 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2270 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2271 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2272 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2273
2274 nla_nest_end(msg, rate);
2275 return true;
2276
2277nla_put_failure:
2278 return false;
2279}
2280
fd5b74dc
JB		 2281static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2282 int flags, struct net_device *dev,
98b62183 2283 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2284{
2285 void *hdr;
f4263c98 2286 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2287
2288 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2289 if (!hdr)
2290 return -1;
2291
2292 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2293 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2294
f5ea9120
JB		 2295 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2296
2ec600d6
LCC		 2297 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2298 if (!sinfoattr)
fd5b74dc 2299 goto nla_put_failure;
ebe27c91
MSS		 2300 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2301 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2302 sinfo->connected_time);
2ec600d6
LCC		 2303 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2304 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2305 sinfo->inactive_time);
2306 if (sinfo->filled & STATION_INFO_RX_BYTES)
2307 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2308 sinfo->rx_bytes);
2309 if (sinfo->filled & STATION_INFO_TX_BYTES)
2310 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2311 sinfo->tx_bytes);
2312 if (sinfo->filled & STATION_INFO_LLID)
2313 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2314 sinfo->llid);
2315 if (sinfo->filled & STATION_INFO_PLID)
2316 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2317 sinfo->plid);
2318 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2319 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2320 sinfo->plink_state);
420e7fab
HR		 2321 if (sinfo->filled & STATION_INFO_SIGNAL)
2322 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2323 sinfo->signal);
541a45a1
BR		 2324 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2325 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2326 sinfo->signal_avg);
420e7fab 2327 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2328 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2329 NL80211_STA_INFO_TX_BITRATE))
2330 goto nla_put_failure;
2331 }
2332 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2333 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2334 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2335 goto nla_put_failure;
420e7fab 2336 }
98c8a60a
JM		 2337 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2338 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2339 sinfo->rx_packets);
2340 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2341 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2342 sinfo->tx_packets);
b206b4ef
BR		 2343 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2344 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2345 sinfo->tx_retries);
2346 if (sinfo->filled & STATION_INFO_TX_FAILED)
2347 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2348 sinfo->tx_failed);
f4263c98
PS		 2349 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2350 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2351 if (!bss_param)
2352 goto nla_put_failure;
2353
2354 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2355 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2356 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2357 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2358 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2359 NLA_PUT_FLAG(msg,
2360 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2361 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2362 sinfo->bss_param.dtim_period);
2363 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2364 sinfo->bss_param.beacon_interval);
2365
2366 nla_nest_end(msg, bss_param);
2367 }
bb6e753e
HS		 2368 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2369 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2370 sizeof(struct nl80211_sta_flag_update),
2371 &sinfo->sta_flags);
2ec600d6 2372 nla_nest_end(msg, sinfoattr);
fd5b74dc 2373
040bdf71 2374 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2375 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2376 sinfo->assoc_req_ies);
2377
fd5b74dc
JB		 2378 return genlmsg_end(msg, hdr);
2379
2380 nla_put_failure:
bc3ed28c
TG		 2381 genlmsg_cancel(msg, hdr);
2382 return -EMSGSIZE;
fd5b74dc
JB		 2383}
2384
2ec600d6 2385static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2386 struct netlink_callback *cb)
2ec600d6 2387{
2ec600d6
LCC		 2388 struct station_info sinfo;
2389 struct cfg80211_registered_device *dev;
bba95fef 2390 struct net_device *netdev;
2ec600d6 2391 u8 mac_addr[ETH_ALEN];
bba95fef 2392 int sta_idx = cb->args[1];
2ec600d6 2393 int err;
2ec600d6 2394
67748893
JB		 2395 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2396 if (err)
2397 return err;
bba95fef
JB		 2398
2399 if (!dev->ops->dump_station) {
eec60b03 2400 err = -EOPNOTSUPP;
bba95fef
JB		 2401 goto out_err;
2402 }
2403
bba95fef 2404 while (1) {
f612cedf 2405 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2406 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2407 mac_addr, &sinfo);
2408 if (err == -ENOENT)
2409 break;
2410 if (err)
3b85875a 2411 goto out_err;
bba95fef
JB		 2412
2413 if (nl80211_send_station(skb,
2414 NETLINK_CB(cb->skb).pid,
2415 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2416 netdev, mac_addr,
2417 &sinfo) < 0)
2418 goto out;
2419
2420 sta_idx++;
2421 }
2422
2423
2424 out:
2425 cb->args[1] = sta_idx;
2426 err = skb->len;
bba95fef 2427 out_err:
67748893 2428 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2429
2430 return err;
2ec600d6 2431}
fd5b74dc 2432
5727ef1b
JB		 2433static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2434{
4c476991
JB		 2435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2436 struct net_device *dev = info->user_ptr[1];
2ec600d6 2437 struct station_info sinfo;
fd5b74dc
JB		 2438 struct sk_buff *msg;
2439 u8 *mac_addr = NULL;
4c476991 2440 int err;
fd5b74dc 2441
2ec600d6 2442 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2443
2444 if (!info->attrs[NL80211_ATTR_MAC])
2445 return -EINVAL;
2446
2447 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2448
4c476991
JB		 2449 if (!rdev->ops->get_station)
2450 return -EOPNOTSUPP;
3b85875a 2451
4c476991 2452 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2453 if (err)
4c476991 2454 return err;
2ec600d6 2455
fd2120ca 2456 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2457 if (!msg)
4c476991 2458 return -ENOMEM;
fd5b74dc
JB		 2459
2460 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2461 dev, mac_addr, &sinfo) < 0) {
2462 nlmsg_free(msg);
2463 return -ENOBUFS;
2464 }
3b85875a 2465
4c476991 2466 return genlmsg_reply(msg, info);
5727ef1b
JB		 2467}
2468
2469/*
c258d2de 2470 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2471 */
463d0183 2472static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2473 struct cfg80211_registered_device *rdev,
2474 struct net_device **vlan)
2475{
463d0183 2476 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2477 *vlan = NULL;
2478
2479 if (vlanattr) {
463d0183
JB		 2480 *vlan = dev_get_by_index(genl_info_net(info),
2481 nla_get_u32(vlanattr));
5727ef1b
JB		 2482 if (!*vlan)
2483 return -ENODEV;
2484 if (!(*vlan)->ieee80211_ptr)
2485 return -EINVAL;
2486 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2487 return -EINVAL;
c258d2de
FF		 2488 if (!netif_running(*vlan))
2489 return -ENETDOWN;
5727ef1b
JB		 2490 }
2491 return 0;
2492}
2493
2494static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2495{
4c476991 2496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2497 int err;
4c476991 2498 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2499 struct station_parameters params;
2500 u8 *mac_addr = NULL;
2501
2502 memset(&params, 0, sizeof(params));
2503
2504 params.listen_interval = -1;
57cf8043 2505 params.plink_state = -1;
5727ef1b
JB		 2506
2507 if (info->attrs[NL80211_ATTR_STA_AID])
2508 return -EINVAL;
2509
2510 if (!info->attrs[NL80211_ATTR_MAC])
2511 return -EINVAL;
2512
2513 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2514
2515 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2516 params.supported_rates =
2517 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2518 params.supported_rates_len =
2519 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2520 }
2521
2522 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2523 params.listen_interval =
2524 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2525
36aedc90
JM		 2526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2527 params.ht_capa =
2528 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2529
eccb8e8f 2530 if (parse_station_flags(info, &params))
5727ef1b
JB		 2531 return -EINVAL;
2532
2ec600d6
LCC		 2533 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2534 params.plink_action =
2535 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2536
9c3990aa
JC		 2537 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2538 params.plink_state =
2539 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2540
463d0183 2541 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2542 if (err)
034d655e 2543 goto out;
a97f4424
JB		 2544
2545 /* validate settings */
2546 err = 0;
2547
2548 switch (dev->ieee80211_ptr->iftype) {
2549 case NL80211_IFTYPE_AP:
2550 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2551 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2552 /* disallow mesh-specific things */
2553 if (params.plink_action)
2554 err = -EINVAL;
2555 break;
074ac8df 2556 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2557 case NL80211_IFTYPE_STATION:
07ba55d7 2558 /* disallow things sta doesn't support */
a97f4424
JB		 2559 if (params.plink_action)
2560 err = -EINVAL;
2561 if (params.vlan)
2562 err = -EINVAL;
07ba55d7
AN		 2563 if (params.supported_rates &&
2564 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2565 err = -EINVAL;
2566 if (params.ht_capa)
2567 err = -EINVAL;
2568 if (params.listen_interval >= 0)
2569 err = -EINVAL;
07ba55d7
AN		 2570 if (params.sta_flags_mask &
2571 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2572 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2573 err = -EINVAL;
2574 /* can't change the TDLS bit */
2575 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2576 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2577 err = -EINVAL;
2578 break;
2579 case NL80211_IFTYPE_MESH_POINT:
2580 /* disallow things mesh doesn't support */
2581 if (params.vlan)
2582 err = -EINVAL;
2583 if (params.ht_capa)
2584 err = -EINVAL;
2585 if (params.listen_interval >= 0)
2586 err = -EINVAL;
b39c48fa
JC		 2587 if (params.sta_flags_mask &
2588 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2589 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2590 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2591 err = -EINVAL;
2592 break;
2593 default:
2594 err = -EINVAL;
034d655e
JB		 2595 }
2596
5727ef1b
JB		 2597 if (err)
2598 goto out;
2599
79c97e97 2600 if (!rdev->ops->change_station) {
5727ef1b
JB		 2601 err = -EOPNOTSUPP;
2602 goto out;
2603 }
2604
79c97e97 2605 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2606
2607 out:
2608 if (params.vlan)
2609 dev_put(params.vlan);
3b85875a 2610
5727ef1b
JB		 2611 return err;
2612}
2613
c75786c9
EP		 2614static struct nla_policy
2615nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2616 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2617 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2618};
2619
5727ef1b
JB		 2620static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2621{
4c476991 2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2623 int err;
4c476991 2624 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2625 struct station_parameters params;
2626 u8 *mac_addr = NULL;
2627
2628 memset(&params, 0, sizeof(params));
2629
2630 if (!info->attrs[NL80211_ATTR_MAC])
2631 return -EINVAL;
2632
5727ef1b
JB		 2633 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2634 return -EINVAL;
2635
2636 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2637 return -EINVAL;
2638
0e956c13
TLSC		 2639 if (!info->attrs[NL80211_ATTR_STA_AID])
2640 return -EINVAL;
2641
5727ef1b
JB		 2642 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2643 params.supported_rates =
2644 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2645 params.supported_rates_len =
2646 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2647 params.listen_interval =
2648 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2649
0e956c13
TLSC		 2650 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2651 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2652 return -EINVAL;
51b50fbe 2653
36aedc90
JM		 2654 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2655 params.ht_capa =
2656 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2657
96b78dff
JC		 2658 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2659 params.plink_action =
2660 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2661
eccb8e8f 2662 if (parse_station_flags(info, &params))
5727ef1b
JB		 2663 return -EINVAL;
2664
c75786c9 2665 /* parse WME attributes if sta is WME capable */
cedb5412 2666 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2667 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2668 info->attrs[NL80211_ATTR_STA_WME]) {
2669 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2670 struct nlattr *nla;
2671
2672 nla = info->attrs[NL80211_ATTR_STA_WME];
2673 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2674 nl80211_sta_wme_policy);
2675 if (err)
2676 return err;
2677
2678 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2679 params.uapsd_queues =
2680 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2681 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2682 return -EINVAL;
c75786c9
EP		 2683
2684 if (tb[NL80211_STA_WME_MAX_SP])
2685 params.max_sp =
2686 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2687
2688 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2689 return -EINVAL;
3b9ce80c
JB		 2690
2691 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
c75786c9
EP		 2692 }
2693
0e956c13 2694 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2695 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2696 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
07ba55d7
AN		 2697 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2698 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2699 return -EINVAL;
2700
2701 /*
2702 * Only managed stations can add TDLS peers, and only when the
2703 * wiphy supports external TDLS setup.
2704 */
2705 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2706 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2707 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2708 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
4c476991 2709 return -EINVAL;
0e956c13 2710
463d0183 2711 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2712 if (err)
e80cf853 2713 goto out;
a97f4424
JB		 2714
2715 /* validate settings */
2716 err = 0;
2717
79c97e97 2718 if (!rdev->ops->add_station) {
5727ef1b
JB		 2719 err = -EOPNOTSUPP;
2720 goto out;
2721 }
2722
79c97e97 2723 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2724
2725 out:
2726 if (params.vlan)
2727 dev_put(params.vlan);
5727ef1b
JB		 2728 return err;
2729}
2730
2731static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2732{
4c476991
JB		 2733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2734 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2735 u8 *mac_addr = NULL;
2736
2737 if (info->attrs[NL80211_ATTR_MAC])
2738 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2739
e80cf853 2740 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2741 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2742 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2744 return -EINVAL;
5727ef1b 2745
4c476991
JB		 2746 if (!rdev->ops->del_station)
2747 return -EOPNOTSUPP;
3b85875a 2748
4c476991 2749 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2750}
2751
2ec600d6
LCC		 2752static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2753 int flags, struct net_device *dev,
2754 u8 *dst, u8 *next_hop,
2755 struct mpath_info *pinfo)
2756{
2757 void *hdr;
2758 struct nlattr *pinfoattr;
2759
2760 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2761 if (!hdr)
2762 return -1;
2763
2764 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2765 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2766 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2767
f5ea9120
JB		 2768 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2769
2ec600d6
LCC		 2770 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2771 if (!pinfoattr)
2772 goto nla_put_failure;
2773 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2774 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2775 pinfo->frame_qlen);
d19b3bf6
RP		 2776 if (pinfo->filled & MPATH_INFO_SN)
2777 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2778 pinfo->sn);
2ec600d6
LCC		 2779 if (pinfo->filled & MPATH_INFO_METRIC)
2780 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2781 pinfo->metric);
2782 if (pinfo->filled & MPATH_INFO_EXPTIME)
2783 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2784 pinfo->exptime);
2785 if (pinfo->filled & MPATH_INFO_FLAGS)
2786 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2787 pinfo->flags);
2788 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2789 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2790 pinfo->discovery_timeout);
2791 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2792 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2793 pinfo->discovery_retries);
2794
2795 nla_nest_end(msg, pinfoattr);
2796
2797 return genlmsg_end(msg, hdr);
2798
2799 nla_put_failure:
bc3ed28c
TG		 2800 genlmsg_cancel(msg, hdr);
2801 return -EMSGSIZE;
2ec600d6
LCC		 2802}
2803
2804static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2805 struct netlink_callback *cb)
2ec600d6 2806{
2ec600d6
LCC		 2807 struct mpath_info pinfo;
2808 struct cfg80211_registered_device *dev;
bba95fef 2809 struct net_device *netdev;
2ec600d6
LCC		 2810 u8 dst[ETH_ALEN];
2811 u8 next_hop[ETH_ALEN];
bba95fef 2812 int path_idx = cb->args[1];
2ec600d6 2813 int err;
2ec600d6 2814
67748893
JB		 2815 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2816 if (err)
2817 return err;
bba95fef
JB		 2818
2819 if (!dev->ops->dump_mpath) {
eec60b03 2820 err = -EOPNOTSUPP;
bba95fef
JB		 2821 goto out_err;
2822 }
2823
eec60b03
JM		 2824 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2825 err = -EOPNOTSUPP;
0448b5fc 2826 goto out_err;
eec60b03
JM		 2827 }
2828
bba95fef
JB		 2829 while (1) {
2830 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2831 dst, next_hop, &pinfo);
2832 if (err == -ENOENT)
2ec600d6 2833 break;
bba95fef 2834 if (err)
3b85875a 2835 goto out_err;
2ec600d6 2836
bba95fef
JB		 2837 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2838 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2839 netdev, dst, next_hop,
2840 &pinfo) < 0)
2841 goto out;
2ec600d6 2842
bba95fef 2843 path_idx++;
2ec600d6 2844 }
2ec600d6 2845
2ec600d6 2846
bba95fef
JB		 2847 out:
2848 cb->args[1] = path_idx;
2849 err = skb->len;
bba95fef 2850 out_err:
67748893 2851 nl80211_finish_netdev_dump(dev);
bba95fef 2852 return err;
2ec600d6
LCC		 2853}
2854
2855static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2856{
4c476991 2857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2858 int err;
4c476991 2859 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2860 struct mpath_info pinfo;
2861 struct sk_buff *msg;
2862 u8 *dst = NULL;
2863 u8 next_hop[ETH_ALEN];
2864
2865 memset(&pinfo, 0, sizeof(pinfo));
2866
2867 if (!info->attrs[NL80211_ATTR_MAC])
2868 return -EINVAL;
2869
2870 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2871
4c476991
JB		 2872 if (!rdev->ops->get_mpath)
2873 return -EOPNOTSUPP;
2ec600d6 2874
4c476991
JB		 2875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2876 return -EOPNOTSUPP;
eec60b03 2877
79c97e97 2878 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2879 if (err)
4c476991 2880 return err;
2ec600d6 2881
fd2120ca 2882 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2883 if (!msg)
4c476991 2884 return -ENOMEM;
2ec600d6
LCC		 2885
2886 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2887 dev, dst, next_hop, &pinfo) < 0) {
2888 nlmsg_free(msg);
2889 return -ENOBUFS;
2890 }
3b85875a 2891
4c476991 2892 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2893}
2894
2895static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2896{
4c476991
JB		 2897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2898 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2899 u8 *dst = NULL;
2900 u8 *next_hop = NULL;
2901
2902 if (!info->attrs[NL80211_ATTR_MAC])
2903 return -EINVAL;
2904
2905 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2906 return -EINVAL;
2907
2908 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2909 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2910
4c476991
JB		 2911 if (!rdev->ops->change_mpath)
2912 return -EOPNOTSUPP;
35a8efe1 2913
4c476991
JB		 2914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2915 return -EOPNOTSUPP;
2ec600d6 2916
4c476991 2917 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2918}
4c476991 2919
2ec600d6
LCC		 2920static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2921{
4c476991
JB		 2922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2923 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2924 u8 *dst = NULL;
2925 u8 *next_hop = NULL;
2926
2927 if (!info->attrs[NL80211_ATTR_MAC])
2928 return -EINVAL;
2929
2930 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2931 return -EINVAL;
2932
2933 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2934 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2935
4c476991
JB		 2936 if (!rdev->ops->add_mpath)
2937 return -EOPNOTSUPP;
35a8efe1 2938
4c476991
JB		 2939 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2940 return -EOPNOTSUPP;
2ec600d6 2941
4c476991 2942 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2943}
2944
2945static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2946{
4c476991
JB		 2947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2948 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2949 u8 *dst = NULL;
2950
2951 if (info->attrs[NL80211_ATTR_MAC])
2952 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2953
4c476991
JB		 2954 if (!rdev->ops->del_mpath)
2955 return -EOPNOTSUPP;
3b85875a 2956
4c476991 2957 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2958}
2959
9f1ba906
JM		 2960static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2961{
4c476991
JB		 2962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2963 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2964 struct bss_parameters params;
2965
2966 memset(&params, 0, sizeof(params));
2967 /* default to not changing parameters */
2968 params.use_cts_prot = -1;
2969 params.use_short_preamble = -1;
2970 params.use_short_slot_time = -1;
fd8aaaf3 2971 params.ap_isolate = -1;
50b12f59 2972 params.ht_opmode = -1;
9f1ba906
JM		 2973
2974 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2975 params.use_cts_prot =
2976 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2977 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2978 params.use_short_preamble =
2979 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2980 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2981 params.use_short_slot_time =
2982 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2983 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2984 params.basic_rates =
2985 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2986 params.basic_rates_len =
2987 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2988 }
fd8aaaf3
FF		 2989 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2990 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2991 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2992 params.ht_opmode =
2993 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2994
4c476991
JB		 2995 if (!rdev->ops->change_bss)
2996 return -EOPNOTSUPP;
9f1ba906 2997
074ac8df 2998 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2999 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3000 return -EOPNOTSUPP;
3b85875a 3001
4c476991 3002 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3003}
3004
b54452b0 3005static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3006 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3007 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3008 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3009 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3010 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3011 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3012};
3013
3014static int parse_reg_rule(struct nlattr *tb[],
3015 struct ieee80211_reg_rule *reg_rule)
3016{
3017 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3018 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3019
3020 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3021 return -EINVAL;
3022 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3023 return -EINVAL;
3024 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3025 return -EINVAL;
3026 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3027 return -EINVAL;
3028 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3029 return -EINVAL;
3030
3031 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3032
3033 freq_range->start_freq_khz =
3034 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3035 freq_range->end_freq_khz =
3036 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3037 freq_range->max_bandwidth_khz =
3038 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3039
3040 power_rule->max_eirp =
3041 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3042
3043 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3044 power_rule->max_antenna_gain =
3045 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3046
3047 return 0;
3048}
3049
3050static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3051{
3052 int r;
3053 char *data = NULL;
3054
80778f18
LR		 3055 /*
3056 * You should only get this when cfg80211 hasn't yet initialized
3057 * completely when built-in to the kernel right between the time
3058 * window between nl80211_init() and regulatory_init(), if that is
3059 * even possible.
3060 */
3061 mutex_lock(&cfg80211_mutex);
3062 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3063 mutex_unlock(&cfg80211_mutex);
3064 return -EINPROGRESS;
80778f18 3065 }
fe33eb39 3066 mutex_unlock(&cfg80211_mutex);
80778f18 3067
fe33eb39
LR		 3068 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3069 return -EINVAL;
b2e1b302
LR		 3070
3071 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3072
fe33eb39
LR		 3073 r = regulatory_hint_user(data);
3074
b2e1b302
LR		 3075 return r;
3076}
3077
24bdd9f4 3078static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3079 struct genl_info *info)
93da9cc1 3080{
4c476991 3081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3082 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3083 struct wireless_dev *wdev = dev->ieee80211_ptr;
3084 struct mesh_config cur_params;
3085 int err = 0;
93da9cc1 3086 void *hdr;
3087 struct nlattr *pinfoattr;
3088 struct sk_buff *msg;
3089
29cbe68c
JB		 3090 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3091 return -EOPNOTSUPP;
3092
24bdd9f4 3093 if (!rdev->ops->get_mesh_config)
4c476991 3094 return -EOPNOTSUPP;
f3f92586 3095
29cbe68c
JB		 3096 wdev_lock(wdev);
3097 /* If not connected, get default parameters */
3098 if (!wdev->mesh_id_len)
3099 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3100 else
24bdd9f4 3101 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3102 &cur_params);
3103 wdev_unlock(wdev);
3104
93da9cc1 3105 if (err)
4c476991 3106 return err;
93da9cc1 3107
3108 /* Draw up a netlink message to send back */
fd2120ca 3109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3110 if (!msg)
3111 return -ENOMEM;
93da9cc1 3112 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3113 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3114 if (!hdr)
efe1cf0c 3115 goto out;
24bdd9f4 3116 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3117 if (!pinfoattr)
3118 goto nla_put_failure;
3119 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3120 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3121 cur_params.dot11MeshRetryTimeout);
3122 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3123 cur_params.dot11MeshConfirmTimeout);
3124 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3125 cur_params.dot11MeshHoldingTimeout);
3126 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3127 cur_params.dot11MeshMaxPeerLinks);
3128 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3129 cur_params.dot11MeshMaxRetries);
3130 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3131 cur_params.dot11MeshTTL);
45904f21
JC		 3132 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3133 cur_params.element_ttl);
93da9cc1 3134 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3135 cur_params.auto_open_plinks);
3136 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3137 cur_params.dot11MeshHWMPmaxPREQretries);
3138 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3139 cur_params.path_refresh_time);
3140 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3141 cur_params.min_discovery_timeout);
3142 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3143 cur_params.dot11MeshHWMPactivePathTimeout);
3144 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3145 cur_params.dot11MeshHWMPpreqMinInterval);
3146 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3147 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3148 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3149 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3150 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3151 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3152 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3153 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3154 nla_nest_end(msg, pinfoattr);
3155 genlmsg_end(msg, hdr);
4c476991 3156 return genlmsg_reply(msg, info);
93da9cc1 3157
3b85875a 3158 nla_put_failure:
93da9cc1 3159 genlmsg_cancel(msg, hdr);
efe1cf0c 3160 out:
d080e275 3161 nlmsg_free(msg);
4c476991 3162 return -ENOBUFS;
93da9cc1 3163}
3164
b54452b0 3165static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3166 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3167 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3168 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3169 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3170 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3171 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3172 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3173 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3174
3175 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3176 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3177 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3178 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3179 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3180 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3181 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3182 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3183 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3184};
3185
c80d545d
JC		 3186static const struct nla_policy
3187 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3188 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3189 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3190 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3191 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3192 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3193 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3194};
3195
24bdd9f4 3196static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3197 struct mesh_config *cfg,
3198 u32 *mask_out)
93da9cc1 3199{
93da9cc1 3200 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3201 u32 mask = 0;
93da9cc1 3202
bd90fdcc
JB		 3203#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3204do {\
3205 if (table[attr_num]) {\
3206 cfg->param = nla_fn(table[attr_num]); \
3207 mask |= (1 << (attr_num - 1)); \
3208 } \
3209} while (0);\
3210
3211
24bdd9f4 3212 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3213 return -EINVAL;
3214 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3215 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3216 nl80211_meshconf_params_policy))
93da9cc1 3217 return -EINVAL;
3218
93da9cc1 3219 /* This makes sure that there aren't more than 32 mesh config
3220 * parameters (otherwise our bitfield scheme would not work.) */
3221 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3222
3223 /* Fill in the params struct */
93da9cc1 3224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3225 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3227 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3229 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3231 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3233 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3234 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3235 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3237 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3239 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3240 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3241 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3242 nla_get_u8);
3243 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3244 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3246 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3247 nla_get_u16);
3248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3249 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3250 nla_get_u32);
3251 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3252 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3253 nla_get_u16);
3254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3255 dot11MeshHWMPnetDiameterTraversalTime,
3256 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3257 nla_get_u16);
63c5723b
RP		 3258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3259 dot11MeshHWMPRootMode, mask,
3260 NL80211_MESHCONF_HWMP_ROOTMODE,
3261 nla_get_u8);
0507e159
JC		 3262 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3263 dot11MeshHWMPRannInterval, mask,
3264 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3265 nla_get_u16);
16dd7267
JC		 3266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3267 dot11MeshGateAnnouncementProtocol, mask,
3268 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3269 nla_get_u8);
bd90fdcc
JB		 3270 if (mask_out)
3271 *mask_out = mask;
c80d545d 3272
bd90fdcc
JB		 3273 return 0;
3274
3275#undef FILL_IN_MESH_PARAM_IF_SET
3276}
3277
c80d545d
JC		 3278static int nl80211_parse_mesh_setup(struct genl_info *info,
3279 struct mesh_setup *setup)
3280{
3281 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3282
3283 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3284 return -EINVAL;
3285 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3286 info->attrs[NL80211_ATTR_MESH_SETUP],
3287 nl80211_mesh_setup_params_policy))
3288 return -EINVAL;
3289
3290 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3291 setup->path_sel_proto =
3292 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3293 IEEE80211_PATH_PROTOCOL_VENDOR :
3294 IEEE80211_PATH_PROTOCOL_HWMP;
3295
3296 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3297 setup->path_metric =
3298 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3299 IEEE80211_PATH_METRIC_VENDOR :
3300 IEEE80211_PATH_METRIC_AIRTIME;
3301
581a8b0f
JC		 3302
3303 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3304 struct nlattr *ieattr =
581a8b0f 3305 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3306 if (!is_valid_ie_attr(ieattr))
3307 return -EINVAL;
581a8b0f
JC		 3308 setup->ie = nla_data(ieattr);
3309 setup->ie_len = nla_len(ieattr);
c80d545d 3310 }
b130e5ce
JC		 3311 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3312 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3313
3314 return 0;
3315}
3316
24bdd9f4 3317static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3318 struct genl_info *info)
bd90fdcc
JB		 3319{
3320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3321 struct net_device *dev = info->user_ptr[1];
29cbe68c 3322 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3323 struct mesh_config cfg;
3324 u32 mask;
3325 int err;
3326
29cbe68c
JB		 3327 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3328 return -EOPNOTSUPP;
3329
24bdd9f4 3330 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3331 return -EOPNOTSUPP;
3332
24bdd9f4 3333 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3334 if (err)
3335 return err;
3336
29cbe68c
JB		 3337 wdev_lock(wdev);
3338 if (!wdev->mesh_id_len)
3339 err = -ENOLINK;
3340
3341 if (!err)
24bdd9f4 3342 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3343 mask, &cfg);
3344
3345 wdev_unlock(wdev);
3346
3347 return err;
93da9cc1 3348}
3349
f130347c
LR		 3350static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3351{
3352 struct sk_buff *msg;
3353 void *hdr = NULL;
3354 struct nlattr *nl_reg_rules;
3355 unsigned int i;
3356 int err = -EINVAL;
3357
a1794390 3358 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3359
3360 if (!cfg80211_regdomain)
3361 goto out;
3362
fd2120ca 3363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3364 if (!msg) {
3365 err = -ENOBUFS;
3366 goto out;
3367 }
3368
3369 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3370 NL80211_CMD_GET_REG);
3371 if (!hdr)
efe1cf0c 3372 goto put_failure;
f130347c
LR		 3373
3374 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3375 cfg80211_regdomain->alpha2);
3376
3377 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3378 if (!nl_reg_rules)
3379 goto nla_put_failure;
3380
3381 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3382 struct nlattr *nl_reg_rule;
3383 const struct ieee80211_reg_rule *reg_rule;
3384 const struct ieee80211_freq_range *freq_range;
3385 const struct ieee80211_power_rule *power_rule;
3386
3387 reg_rule = &cfg80211_regdomain->reg_rules[i];
3388 freq_range = &reg_rule->freq_range;
3389 power_rule = &reg_rule->power_rule;
3390
3391 nl_reg_rule = nla_nest_start(msg, i);
3392 if (!nl_reg_rule)
3393 goto nla_put_failure;
3394
3395 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3396 reg_rule->flags);
3397 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3398 freq_range->start_freq_khz);
3399 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3400 freq_range->end_freq_khz);
3401 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3402 freq_range->max_bandwidth_khz);
3403 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3404 power_rule->max_antenna_gain);
3405 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3406 power_rule->max_eirp);
3407
3408 nla_nest_end(msg, nl_reg_rule);
3409 }
3410
3411 nla_nest_end(msg, nl_reg_rules);
3412
3413 genlmsg_end(msg, hdr);
134e6375 3414 err = genlmsg_reply(msg, info);
f130347c
LR		 3415 goto out;
3416
3417nla_put_failure:
3418 genlmsg_cancel(msg, hdr);
efe1cf0c 3419put_failure:
d080e275 3420 nlmsg_free(msg);
f130347c
LR		 3421 err = -EMSGSIZE;
3422out:
a1794390 3423 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3424 return err;
3425}
3426
b2e1b302
LR		 3427static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3428{
3429 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3430 struct nlattr *nl_reg_rule;
3431 char *alpha2 = NULL;
3432 int rem_reg_rules = 0, r = 0;
3433 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3434 struct ieee80211_regdomain *rd = NULL;
3435
3436 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3437 return -EINVAL;
3438
3439 if (!info->attrs[NL80211_ATTR_REG_RULES])
3440 return -EINVAL;
3441
3442 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3443
3444 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3445 rem_reg_rules) {
3446 num_rules++;
3447 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3448 return -EINVAL;
b2e1b302
LR		 3449 }
3450
61405e97
LR		 3451 mutex_lock(&cfg80211_mutex);
3452
d0e18f83
LR		 3453 if (!reg_is_valid_request(alpha2)) {
3454 r = -EINVAL;
3455 goto bad_reg;
3456 }
b2e1b302
LR		 3457
3458 size_of_regd = sizeof(struct ieee80211_regdomain) +
3459 (num_rules * sizeof(struct ieee80211_reg_rule));
3460
3461 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3462 if (!rd) {
3463 r = -ENOMEM;
3464 goto bad_reg;
3465 }
b2e1b302
LR		 3466
3467 rd->n_reg_rules = num_rules;
3468 rd->alpha2[0] = alpha2[0];
3469 rd->alpha2[1] = alpha2[1];
3470
3471 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3472 rem_reg_rules) {
3473 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3474 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3475 reg_rule_policy);
3476 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3477 if (r)
3478 goto bad_reg;
3479
3480 rule_idx++;
3481
d0e18f83
LR		 3482 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3483 r = -EINVAL;
b2e1b302 3484 goto bad_reg;
d0e18f83 3485 }
b2e1b302
LR		 3486 }
3487
3488 BUG_ON(rule_idx != num_rules);
3489
b2e1b302 3490 r = set_regdom(rd);
61405e97 3491
a1794390 3492 mutex_unlock(&cfg80211_mutex);
d0e18f83 3493
b2e1b302
LR		 3494 return r;
3495
d2372b31 3496 bad_reg:
61405e97 3497 mutex_unlock(&cfg80211_mutex);
b2e1b302 3498 kfree(rd);
d0e18f83 3499 return r;
b2e1b302
LR		 3500}
3501
83f5e2cf
JB		 3502static int validate_scan_freqs(struct nlattr *freqs)
3503{
3504 struct nlattr *attr1, *attr2;
3505 int n_channels = 0, tmp1, tmp2;
3506
3507 nla_for_each_nested(attr1, freqs, tmp1) {
3508 n_channels++;
3509 /*
3510 * Some hardware has a limited channel list for
3511 * scanning, and it is pretty much nonsensical
3512 * to scan for a channel twice, so disallow that
3513 * and don't require drivers to check that the
3514 * channel list they get isn't longer than what
3515 * they can scan, as long as they can scan all
3516 * the channels they registered at once.
3517 */
3518 nla_for_each_nested(attr2, freqs, tmp2)
3519 if (attr1 != attr2 &&
3520 nla_get_u32(attr1) == nla_get_u32(attr2))
3521 return 0;
3522 }
3523
3524 return n_channels;
3525}
3526
2a519311
JB		 3527static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3528{
4c476991
JB		 3529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3530 struct net_device *dev = info->user_ptr[1];
2a519311 3531 struct cfg80211_scan_request *request;
2a519311
JB		 3532 struct nlattr *attr;
3533 struct wiphy *wiphy;
83f5e2cf 3534 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3535 size_t ie_len;
2a519311 3536
f4a11bb0
JB		 3537 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3538 return -EINVAL;
3539
79c97e97 3540 wiphy = &rdev->wiphy;
2a519311 3541
4c476991
JB		 3542 if (!rdev->ops->scan)
3543 return -EOPNOTSUPP;
2a519311 3544
4c476991
JB		 3545 if (rdev->scan_req)
3546 return -EBUSY;
2a519311
JB		 3547
3548 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3549 n_channels = validate_scan_freqs(
3550 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3551 if (!n_channels)
3552 return -EINVAL;
2a519311 3553 } else {
34850ab2 3554 enum ieee80211_band band;
83f5e2cf
JB		 3555 n_channels = 0;
3556
2a519311
JB		 3557 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3558 if (wiphy->bands[band])
3559 n_channels += wiphy->bands[band]->n_channels;
3560 }
3561
3562 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3563 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3564 n_ssids++;
3565
4c476991
JB		 3566 if (n_ssids > wiphy->max_scan_ssids)
3567 return -EINVAL;
2a519311 3568
70692ad2
JM		 3569 if (info->attrs[NL80211_ATTR_IE])
3570 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3571 else
3572 ie_len = 0;
3573
4c476991
JB		 3574 if (ie_len > wiphy->max_scan_ie_len)
3575 return -EINVAL;
18a83659 3576
2a519311 3577 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3578 + sizeof(*request->ssids) * n_ssids
3579 + sizeof(*request->channels) * n_channels
70692ad2 3580 + ie_len, GFP_KERNEL);
4c476991
JB		 3581 if (!request)
3582 return -ENOMEM;
2a519311 3583
2a519311 3584 if (n_ssids)
5ba63533 3585 request->ssids = (void *)&request->channels[n_channels];
2a519311 3586 request->n_ssids = n_ssids;
70692ad2
JM		 3587 if (ie_len) {
3588 if (request->ssids)
3589 request->ie = (void *)(request->ssids + n_ssids);
3590 else
3591 request->ie = (void *)(request->channels + n_channels);
3592 }
2a519311 3593
584991dc 3594 i = 0;
2a519311
JB		 3595 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3596 /* user specified, bail out if channel not found */
2a519311 3597 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3598 struct ieee80211_channel *chan;
3599
3600 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3601
3602 if (!chan) {
2a519311
JB		 3603 err = -EINVAL;
3604 goto out_free;
3605 }
584991dc
JB		 3606
3607 /* ignore disabled channels */
3608 if (chan->flags & IEEE80211_CHAN_DISABLED)
3609 continue;
3610
3611 request->channels[i] = chan;
2a519311
JB		 3612 i++;
3613 }
3614 } else {
34850ab2
JB		 3615 enum ieee80211_band band;
3616
2a519311 3617 /* all channels */
2a519311
JB		 3618 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3619 int j;
3620 if (!wiphy->bands[band])
3621 continue;
3622 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3623 struct ieee80211_channel *chan;
3624
3625 chan = &wiphy->bands[band]->channels[j];
3626
3627 if (chan->flags & IEEE80211_CHAN_DISABLED)
3628 continue;
3629
3630 request->channels[i] = chan;
2a519311
JB		 3631 i++;
3632 }
3633 }
3634 }
3635
584991dc
JB		 3636 if (!i) {
3637 err = -EINVAL;
3638 goto out_free;
3639 }
3640
3641 request->n_channels = i;
3642
2a519311
JB		 3643 i = 0;
3644 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3645 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3646 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3647 err = -EINVAL;
3648 goto out_free;
3649 }
57a27e1d 3650 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3651 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3652 i++;
3653 }
3654 }
3655
70692ad2
JM		 3656 if (info->attrs[NL80211_ATTR_IE]) {
3657 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3658 memcpy((void *)request->ie,
3659 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3660 request->ie_len);
3661 }
3662
34850ab2 3663 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3664 if (wiphy->bands[i])
3665 request->rates[i] =
3666 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3667
3668 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3669 nla_for_each_nested(attr,
3670 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3671 tmp) {
3672 enum ieee80211_band band = nla_type(attr);
3673
84404623 3674 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3675 err = -EINVAL;
3676 goto out_free;
3677 }
3678 err = ieee80211_get_ratemask(wiphy->bands[band],
3679 nla_data(attr),
3680 nla_len(attr),
3681 &request->rates[band]);
3682 if (err)
3683 goto out_free;
3684 }
3685 }
3686
e9f935e3
RM		 3687 request->no_cck =
3688 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3689
463d0183 3690 request->dev = dev;
79c97e97 3691 request->wiphy = &rdev->wiphy;
2a519311 3692
79c97e97
JB		 3693 rdev->scan_req = request;
3694 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3695
463d0183 3696 if (!err) {
79c97e97 3697 nl80211_send_scan_start(rdev, dev);
463d0183 3698 dev_hold(dev);
4c476991 3699 } else {
2a519311 3700 out_free:
79c97e97 3701 rdev->scan_req = NULL;
2a519311
JB		 3702 kfree(request);
3703 }
3b85875a 3704
2a519311
JB		 3705 return err;
3706}
3707
807f8a8c
LC		 3708static int nl80211_start_sched_scan(struct sk_buff *skb,
3709 struct genl_info *info)
3710{
3711 struct cfg80211_sched_scan_request *request;
3712 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3713 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3714 struct nlattr *attr;
3715 struct wiphy *wiphy;
a1f1c21c 3716 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3717 u32 interval;
807f8a8c
LC		 3718 enum ieee80211_band band;
3719 size_t ie_len;
a1f1c21c 3720 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3721
3722 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3723 !rdev->ops->sched_scan_start)
3724 return -EOPNOTSUPP;
3725
3726 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3727 return -EINVAL;
3728
bbe6ad6d
LC		 3729 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3730 return -EINVAL;
3731
3732 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3733 if (interval == 0)
3734 return -EINVAL;
3735
807f8a8c
LC		 3736 wiphy = &rdev->wiphy;
3737
3738 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3739 n_channels = validate_scan_freqs(
3740 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3741 if (!n_channels)
3742 return -EINVAL;
3743 } else {
3744 n_channels = 0;
3745
3746 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3747 if (wiphy->bands[band])
3748 n_channels += wiphy->bands[band]->n_channels;
3749 }
3750
3751 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3752 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3753 tmp)
3754 n_ssids++;
3755
93b6aa69 3756 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3757 return -EINVAL;
3758
a1f1c21c
LC		 3759 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3760 nla_for_each_nested(attr,
3761 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3762 tmp)
3763 n_match_sets++;
3764
3765 if (n_match_sets > wiphy->max_match_sets)
3766 return -EINVAL;
3767
807f8a8c
LC		 3768 if (info->attrs[NL80211_ATTR_IE])
3769 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3770 else
3771 ie_len = 0;
3772
5a865bad 3773 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3774 return -EINVAL;
3775
c10841ca
LC		 3776 mutex_lock(&rdev->sched_scan_mtx);
3777
3778 if (rdev->sched_scan_req) {
3779 err = -EINPROGRESS;
3780 goto out;
3781 }
3782
807f8a8c 3783 request = kzalloc(sizeof(*request)
a2cd43c5 3784 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3785 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3786 + sizeof(*request->channels) * n_channels
807f8a8c 3787 + ie_len, GFP_KERNEL);
c10841ca
LC		 3788 if (!request) {
3789 err = -ENOMEM;
3790 goto out;
3791 }
807f8a8c
LC		 3792
3793 if (n_ssids)
3794 request->ssids = (void *)&request->channels[n_channels];
3795 request->n_ssids = n_ssids;
3796 if (ie_len) {
3797 if (request->ssids)
3798 request->ie = (void *)(request->ssids + n_ssids);
3799 else
3800 request->ie = (void *)(request->channels + n_channels);
3801 }
3802
a1f1c21c
LC		 3803 if (n_match_sets) {
3804 if (request->ie)
3805 request->match_sets = (void *)(request->ie + ie_len);
3806 else if (request->ssids)
3807 request->match_sets =
3808 (void *)(request->ssids + n_ssids);
3809 else
3810 request->match_sets =
3811 (void *)(request->channels + n_channels);
3812 }
3813 request->n_match_sets = n_match_sets;
3814
807f8a8c
LC		 3815 i = 0;
3816 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3817 /* user specified, bail out if channel not found */
3818 nla_for_each_nested(attr,
3819 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3820 tmp) {
3821 struct ieee80211_channel *chan;
3822
3823 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3824
3825 if (!chan) {
3826 err = -EINVAL;
3827 goto out_free;
3828 }
3829
3830 /* ignore disabled channels */
3831 if (chan->flags & IEEE80211_CHAN_DISABLED)
3832 continue;
3833
3834 request->channels[i] = chan;
3835 i++;
3836 }
3837 } else {
3838 /* all channels */
3839 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3840 int j;
3841 if (!wiphy->bands[band])
3842 continue;
3843 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3844 struct ieee80211_channel *chan;
3845
3846 chan = &wiphy->bands[band]->channels[j];
3847
3848 if (chan->flags & IEEE80211_CHAN_DISABLED)
3849 continue;
3850
3851 request->channels[i] = chan;
3852 i++;
3853 }
3854 }
3855 }
3856
3857 if (!i) {
3858 err = -EINVAL;
3859 goto out_free;
3860 }
3861
3862 request->n_channels = i;
3863
3864 i = 0;
3865 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3866 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3867 tmp) {
57a27e1d 3868 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3869 err = -EINVAL;
3870 goto out_free;
3871 }
57a27e1d 3872 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3873 memcpy(request->ssids[i].ssid, nla_data(attr),
3874 nla_len(attr));
807f8a8c
LC		 3875 i++;
3876 }
3877 }
3878
a1f1c21c
LC		 3879 i = 0;
3880 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3881 nla_for_each_nested(attr,
3882 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3883 tmp) {
3884 struct nlattr *ssid;
3885
3886 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3887 nla_data(attr), nla_len(attr),
3888 nl80211_match_policy);
3889 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3890 if (ssid) {
3891 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3892 err = -EINVAL;
3893 goto out_free;
3894 }
3895 memcpy(request->match_sets[i].ssid.ssid,
3896 nla_data(ssid), nla_len(ssid));
3897 request->match_sets[i].ssid.ssid_len =
3898 nla_len(ssid);
3899 }
3900 i++;
3901 }
3902 }
3903
807f8a8c
LC		 3904 if (info->attrs[NL80211_ATTR_IE]) {
3905 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3906 memcpy((void *)request->ie,
3907 nla_data(info->attrs[NL80211_ATTR_IE]),
3908 request->ie_len);
3909 }
3910
3911 request->dev = dev;
3912 request->wiphy = &rdev->wiphy;
bbe6ad6d 3913 request->interval = interval;
807f8a8c
LC		 3914
3915 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3916 if (!err) {
3917 rdev->sched_scan_req = request;
3918 nl80211_send_sched_scan(rdev, dev,
3919 NL80211_CMD_START_SCHED_SCAN);
3920 goto out;
3921 }
3922
3923out_free:
3924 kfree(request);
3925out:
c10841ca 3926 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3927 return err;
3928}
3929
3930static int nl80211_stop_sched_scan(struct sk_buff *skb,
3931 struct genl_info *info)
3932{
3933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3934 int err;
807f8a8c
LC		 3935
3936 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3937 !rdev->ops->sched_scan_stop)
3938 return -EOPNOTSUPP;
3939
c10841ca
LC		 3940 mutex_lock(&rdev->sched_scan_mtx);
3941 err = __cfg80211_stop_sched_scan(rdev, false);
3942 mutex_unlock(&rdev->sched_scan_mtx);
3943
3944 return err;
807f8a8c
LC		 3945}
3946
9720bb3a
JB		 3947static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3948 u32 seq, int flags,
2a519311 3949 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3950 struct wireless_dev *wdev,
3951 struct cfg80211_internal_bss *intbss)
2a519311 3952{
48ab905d 3953 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3954 void *hdr;
3955 struct nlattr *bss;
48ab905d
JB		 3956 int i;
3957
3958 ASSERT_WDEV_LOCK(wdev);
2a519311 3959
9720bb3a 3960 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 3961 NL80211_CMD_NEW_SCAN_RESULTS);
3962 if (!hdr)
3963 return -1;
3964
9720bb3a
JB		 3965 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3966
f5ea9120 3967 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3968 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3969
3970 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3971 if (!bss)
3972 goto nla_put_failure;
3973 if (!is_zero_ether_addr(res->bssid))
3974 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3975 if (res->information_elements && res->len_information_elements)
3976 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3977 res->len_information_elements,
3978 res->information_elements);
34a6eddb
JM		 3979 if (res->beacon_ies && res->len_beacon_ies &&
3980 res->beacon_ies != res->information_elements)
3981 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3982 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3983 if (res->tsf)
3984 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3985 if (res->beacon_interval)
3986 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3987 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3988 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3989 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3990 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3991
77965c97 3992 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3993 case CFG80211_SIGNAL_TYPE_MBM:
3994 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3995 break;
3996 case CFG80211_SIGNAL_TYPE_UNSPEC:
3997 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3998 break;
3999 default:
4000 break;
4001 }
4002
48ab905d 4003 switch (wdev->iftype) {
074ac8df 4004 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4005 case NL80211_IFTYPE_STATION:
4006 if (intbss == wdev->current_bss)
4007 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4008 NL80211_BSS_STATUS_ASSOCIATED);
4009 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4010 if (intbss != wdev->auth_bsses[i])
4011 continue;
4012 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4013 NL80211_BSS_STATUS_AUTHENTICATED);
4014 break;
4015 }
4016 break;
4017 case NL80211_IFTYPE_ADHOC:
4018 if (intbss == wdev->current_bss)
4019 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4020 NL80211_BSS_STATUS_IBSS_JOINED);
4021 break;
4022 default:
4023 break;
4024 }
4025
2a519311
JB		 4026 nla_nest_end(msg, bss);
4027
4028 return genlmsg_end(msg, hdr);
4029
4030 nla_put_failure:
4031 genlmsg_cancel(msg, hdr);
4032 return -EMSGSIZE;
4033}
4034
4035static int nl80211_dump_scan(struct sk_buff *skb,
4036 struct netlink_callback *cb)
4037{
48ab905d
JB		 4038 struct cfg80211_registered_device *rdev;
4039 struct net_device *dev;
2a519311 4040 struct cfg80211_internal_bss *scan;
48ab905d 4041 struct wireless_dev *wdev;
2a519311
JB		 4042 int start = cb->args[1], idx = 0;
4043 int err;
4044
67748893
JB		 4045 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4046 if (err)
4047 return err;
2a519311 4048
48ab905d 4049 wdev = dev->ieee80211_ptr;
2a519311 4050
48ab905d
JB		 4051 wdev_lock(wdev);
4052 spin_lock_bh(&rdev->bss_lock);
4053 cfg80211_bss_expire(rdev);
4054
9720bb3a
JB		 4055 cb->seq = rdev->bss_generation;
4056
48ab905d 4057 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4058 if (++idx <= start)
4059 continue;
9720bb3a 4060 if (nl80211_send_bss(skb, cb,
2a519311 4061 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4062 rdev, wdev, scan) < 0) {
2a519311 4063 idx--;
67748893 4064 break;
2a519311
JB		 4065 }
4066 }
4067
48ab905d
JB		 4068 spin_unlock_bh(&rdev->bss_lock);
4069 wdev_unlock(wdev);
2a519311
JB		 4070
4071 cb->args[1] = idx;
67748893 4072 nl80211_finish_netdev_dump(rdev);
2a519311 4073
67748893 4074 return skb->len;
2a519311
JB		 4075}
4076
61fa713c
HS		 4077static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4078 int flags, struct net_device *dev,
4079 struct survey_info *survey)
4080{
4081 void *hdr;
4082 struct nlattr *infoattr;
4083
61fa713c
HS		 4084 hdr = nl80211hdr_put(msg, pid, seq, flags,
4085 NL80211_CMD_NEW_SURVEY_RESULTS);
4086 if (!hdr)
4087 return -ENOMEM;
4088
4089 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4090
4091 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4092 if (!infoattr)
4093 goto nla_put_failure;
4094
4095 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4096 survey->channel->center_freq);
4097 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4098 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4099 survey->noise);
17e5a808
FF		 4100 if (survey->filled & SURVEY_INFO_IN_USE)
4101 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4102 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4103 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4104 survey->channel_time);
4105 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4106 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4107 survey->channel_time_busy);
4108 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4109 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4110 survey->channel_time_ext_busy);
4111 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4112 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4113 survey->channel_time_rx);
4114 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4115 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4116 survey->channel_time_tx);
61fa713c
HS		 4117
4118 nla_nest_end(msg, infoattr);
4119
4120 return genlmsg_end(msg, hdr);
4121
4122 nla_put_failure:
4123 genlmsg_cancel(msg, hdr);
4124 return -EMSGSIZE;
4125}
4126
4127static int nl80211_dump_survey(struct sk_buff *skb,
4128 struct netlink_callback *cb)
4129{
4130 struct survey_info survey;
4131 struct cfg80211_registered_device *dev;
4132 struct net_device *netdev;
61fa713c
HS		 4133 int survey_idx = cb->args[1];
4134 int res;
4135
67748893
JB		 4136 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4137 if (res)
4138 return res;
61fa713c
HS		 4139
4140 if (!dev->ops->dump_survey) {
4141 res = -EOPNOTSUPP;
4142 goto out_err;
4143 }
4144
4145 while (1) {
180cdc79
LR		 4146 struct ieee80211_channel *chan;
4147
61fa713c
HS		 4148 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4149 &survey);
4150 if (res == -ENOENT)
4151 break;
4152 if (res)
4153 goto out_err;
4154
180cdc79
LR		 4155 /* Survey without a channel doesn't make sense */
4156 if (!survey.channel) {
4157 res = -EINVAL;
4158 goto out;
4159 }
4160
4161 chan = ieee80211_get_channel(&dev->wiphy,
4162 survey.channel->center_freq);
4163 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4164 survey_idx++;
4165 continue;
4166 }
4167
61fa713c
HS		 4168 if (nl80211_send_survey(skb,
4169 NETLINK_CB(cb->skb).pid,
4170 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4171 netdev,
4172 &survey) < 0)
4173 goto out;
4174 survey_idx++;
4175 }
4176
4177 out:
4178 cb->args[1] = survey_idx;
4179 res = skb->len;
4180 out_err:
67748893 4181 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4182 return res;
4183}
4184
255e737e
JM		 4185static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4186{
b23aa676
SO		 4187 return auth_type <= NL80211_AUTHTYPE_MAX;
4188}
4189
4190static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4191{
4192 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4193 NL80211_WPA_VERSION_2));
4194}
4195
636a5d36
JM		 4196static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4197{
4c476991
JB		 4198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4199 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4200 struct ieee80211_channel *chan;
4201 const u8 *bssid, *ssid, *ie = NULL;
4202 int err, ssid_len, ie_len = 0;
4203 enum nl80211_auth_type auth_type;
fffd0934 4204 struct key_parse key;
d5cdfacb 4205 bool local_state_change;
636a5d36 4206
f4a11bb0
JB		 4207 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4208 return -EINVAL;
4209
4210 if (!info->attrs[NL80211_ATTR_MAC])
4211 return -EINVAL;
4212
1778092e
JM		 4213 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4214 return -EINVAL;
4215
19957bb3
JB		 4216 if (!info->attrs[NL80211_ATTR_SSID])
4217 return -EINVAL;
4218
4219 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4220 return -EINVAL;
4221
fffd0934
JB		 4222 err = nl80211_parse_key(info, &key);
4223 if (err)
4224 return err;
4225
4226 if (key.idx >= 0) {
e31b8213
JB		 4227 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4228 return -EINVAL;
fffd0934
JB		 4229 if (!key.p.key || !key.p.key_len)
4230 return -EINVAL;
4231 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4232 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4233 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4234 key.p.key_len != WLAN_KEY_LEN_WEP104))
4235 return -EINVAL;
4236 if (key.idx > 4)
4237 return -EINVAL;
4238 } else {
4239 key.p.key_len = 0;
4240 key.p.key = NULL;
4241 }
4242
afea0b7a
JB		 4243 if (key.idx >= 0) {
4244 int i;
4245 bool ok = false;
4246 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4247 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4248 ok = true;
4249 break;
4250 }
4251 }
4c476991
JB		 4252 if (!ok)
4253 return -EINVAL;
afea0b7a
JB		 4254 }
4255
4c476991
JB		 4256 if (!rdev->ops->auth)
4257 return -EOPNOTSUPP;
636a5d36 4258
074ac8df 4259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4260 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4261 return -EOPNOTSUPP;
eec60b03 4262
19957bb3 4263 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4264 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4265 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4266 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4267 return -EINVAL;
636a5d36 4268
19957bb3
JB		 4269 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4270 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4271
4272 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4273 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4274 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4275 }
4276
19957bb3 4277 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4278 if (!nl80211_valid_auth_type(auth_type))
4279 return -EINVAL;
636a5d36 4280
d5cdfacb
JM		 4281 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4282
4c476991
JB		 4283 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4284 ssid, ssid_len, ie, ie_len,
4285 key.p.key, key.p.key_len, key.idx,
4286 local_state_change);
636a5d36
JM		 4287}
4288
c0692b8f
JB		 4289static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4290 struct genl_info *info,
3dc27d25
JB		 4291 struct cfg80211_crypto_settings *settings,
4292 int cipher_limit)
b23aa676 4293{
c0b2bbd8
JB		 4294 memset(settings, 0, sizeof(*settings));
4295
b23aa676
SO		 4296 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4297
c0692b8f
JB		 4298 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4299 u16 proto;
4300 proto = nla_get_u16(
4301 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4302 settings->control_port_ethertype = cpu_to_be16(proto);
4303 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4304 proto != ETH_P_PAE)
4305 return -EINVAL;
4306 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4307 settings->control_port_no_encrypt = true;
4308 } else
4309 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4310
b23aa676
SO		 4311 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4312 void *data;
4313 int len, i;
4314
4315 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4316 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4317 settings->n_ciphers_pairwise = len / sizeof(u32);
4318
4319 if (len % sizeof(u32))
4320 return -EINVAL;
4321
3dc27d25 4322 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4323 return -EINVAL;
4324
4325 memcpy(settings->ciphers_pairwise, data, len);
4326
4327 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4328 if (!cfg80211_supported_cipher_suite(
4329 &rdev->wiphy,
b23aa676
SO		 4330 settings->ciphers_pairwise[i]))
4331 return -EINVAL;
4332 }
4333
4334 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4335 settings->cipher_group =
4336 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4337 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4338 settings->cipher_group))
b23aa676
SO		 4339 return -EINVAL;
4340 }
4341
4342 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4343 settings->wpa_versions =
4344 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4345 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4346 return -EINVAL;
4347 }
4348
4349 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4350 void *data;
6d30240e 4351 int len;
b23aa676
SO		 4352
4353 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4354 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4355 settings->n_akm_suites = len / sizeof(u32);
4356
4357 if (len % sizeof(u32))
4358 return -EINVAL;
4359
1b9ca027
JM		 4360 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4361 return -EINVAL;
4362
b23aa676 4363 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4364 }
4365
4366 return 0;
4367}
4368
636a5d36
JM		 4369static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4370{
4c476991
JB		 4371 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4372 struct net_device *dev = info->user_ptr[1];
19957bb3 4373 struct cfg80211_crypto_settings crypto;
f444de05 4374 struct ieee80211_channel *chan;
3e5d7649 4375 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4376 int err, ssid_len, ie_len = 0;
4377 bool use_mfp = false;
636a5d36 4378
f4a11bb0
JB		 4379 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4380 return -EINVAL;
4381
4382 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4383 !info->attrs[NL80211_ATTR_SSID] ||
4384 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4385 return -EINVAL;
4386
4c476991
JB		 4387 if (!rdev->ops->assoc)
4388 return -EOPNOTSUPP;
636a5d36 4389
074ac8df 4390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4392 return -EOPNOTSUPP;
eec60b03 4393
19957bb3 4394 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4395
19957bb3
JB		 4396 chan = ieee80211_get_channel(&rdev->wiphy,
4397 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4398 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4399 return -EINVAL;
636a5d36 4400
19957bb3
JB		 4401 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4402 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4403
4404 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4405 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4406 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4407 }
4408
dc6382ce 4409 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4410 enum nl80211_mfp mfp =
dc6382ce 4411 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4412 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4413 use_mfp = true;
4c476991
JB		 4414 else if (mfp != NL80211_MFP_NO)
4415 return -EINVAL;
dc6382ce
JM		 4416 }
4417
3e5d7649
JB		 4418 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4419 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4420
c0692b8f 4421 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4422 if (!err)
3e5d7649
JB		 4423 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4424 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4425 &crypto);
636a5d36 4426
636a5d36
JM		 4427 return err;
4428}
4429
4430static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4431{
4c476991
JB		 4432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4433 struct net_device *dev = info->user_ptr[1];
19957bb3 4434 const u8 *ie = NULL, *bssid;
4c476991 4435 int ie_len = 0;
19957bb3 4436 u16 reason_code;
d5cdfacb 4437 bool local_state_change;
636a5d36 4438
f4a11bb0
JB		 4439 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4440 return -EINVAL;
4441
4442 if (!info->attrs[NL80211_ATTR_MAC])
4443 return -EINVAL;
4444
4445 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4446 return -EINVAL;
4447
4c476991
JB		 4448 if (!rdev->ops->deauth)
4449 return -EOPNOTSUPP;
636a5d36 4450
074ac8df 4451 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4452 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4453 return -EOPNOTSUPP;
eec60b03 4454
19957bb3 4455 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4456
19957bb3
JB		 4457 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4458 if (reason_code == 0) {
f4a11bb0 4459 /* Reason Code 0 is reserved */
4c476991 4460 return -EINVAL;
255e737e 4461 }
636a5d36
JM		 4462
4463 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4464 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4465 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4466 }
4467
d5cdfacb
JM		 4468 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4469
4c476991
JB		 4470 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4471 local_state_change);
636a5d36
JM		 4472}
4473
4474static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4475{
4c476991
JB		 4476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4477 struct net_device *dev = info->user_ptr[1];
19957bb3 4478 const u8 *ie = NULL, *bssid;
4c476991 4479 int ie_len = 0;
19957bb3 4480 u16 reason_code;
d5cdfacb 4481 bool local_state_change;
636a5d36 4482
f4a11bb0
JB		 4483 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4484 return -EINVAL;
4485
4486 if (!info->attrs[NL80211_ATTR_MAC])
4487 return -EINVAL;
4488
4489 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4490 return -EINVAL;
4491
4c476991
JB		 4492 if (!rdev->ops->disassoc)
4493 return -EOPNOTSUPP;
636a5d36 4494
074ac8df 4495 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4497 return -EOPNOTSUPP;
eec60b03 4498
19957bb3 4499 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4500
19957bb3
JB		 4501 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4502 if (reason_code == 0) {
f4a11bb0 4503 /* Reason Code 0 is reserved */
4c476991 4504 return -EINVAL;
255e737e 4505 }
636a5d36
JM		 4506
4507 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4508 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4509 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4510 }
4511
d5cdfacb
JM		 4512 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4513
4c476991
JB		 4514 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4515 local_state_change);
636a5d36
JM		 4516}
4517
dd5b4cc7
FF		 4518static bool
4519nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4520 int mcast_rate[IEEE80211_NUM_BANDS],
4521 int rateval)
4522{
4523 struct wiphy *wiphy = &rdev->wiphy;
4524 bool found = false;
4525 int band, i;
4526
4527 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4528 struct ieee80211_supported_band *sband;
4529
4530 sband = wiphy->bands[band];
4531 if (!sband)
4532 continue;
4533
4534 for (i = 0; i < sband->n_bitrates; i++) {
4535 if (sband->bitrates[i].bitrate == rateval) {
4536 mcast_rate[band] = i + 1;
4537 found = true;
4538 break;
4539 }
4540 }
4541 }
4542
4543 return found;
4544}
4545
04a773ad
JB		 4546static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4547{
4c476991
JB		 4548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4549 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4550 struct cfg80211_ibss_params ibss;
4551 struct wiphy *wiphy;
fffd0934 4552 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4553 int err;
4554
8e30bc55
JB		 4555 memset(&ibss, 0, sizeof(ibss));
4556
04a773ad
JB		 4557 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4558 return -EINVAL;
4559
4560 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4561 !info->attrs[NL80211_ATTR_SSID] ||
4562 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4563 return -EINVAL;
4564
8e30bc55
JB		 4565 ibss.beacon_interval = 100;
4566
4567 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4568 ibss.beacon_interval =
4569 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4570 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4571 return -EINVAL;
4572 }
4573
4c476991
JB		 4574 if (!rdev->ops->join_ibss)
4575 return -EOPNOTSUPP;
04a773ad 4576
4c476991
JB		 4577 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4578 return -EOPNOTSUPP;
04a773ad 4579
79c97e97 4580 wiphy = &rdev->wiphy;
04a773ad 4581
39193498 4582 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4583 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4584
4585 if (!is_valid_ether_addr(ibss.bssid))
4586 return -EINVAL;
4587 }
04a773ad
JB		 4588 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4589 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4590
4591 if (info->attrs[NL80211_ATTR_IE]) {
4592 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4593 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4594 }
4595
4596 ibss.channel = ieee80211_get_channel(wiphy,
4597 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4598 if (!ibss.channel ||
4599 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4600 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4601 return -EINVAL;
04a773ad
JB		 4602
4603 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4604 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4605
fbd2c8dc
TP		 4606 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4607 u8 *rates =
4608 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4609 int n_rates =
4610 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4611 struct ieee80211_supported_band *sband =
4612 wiphy->bands[ibss.channel->band];
34850ab2 4613 int err;
fbd2c8dc 4614
34850ab2
JB		 4615 err = ieee80211_get_ratemask(sband, rates, n_rates,
4616 &ibss.basic_rates);
4617 if (err)
4618 return err;
fbd2c8dc 4619 }
dd5b4cc7
FF		 4620
4621 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4622 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4623 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4624 return -EINVAL;
fbd2c8dc 4625
4c476991
JB		 4626 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4627 connkeys = nl80211_parse_connkeys(rdev,
4628 info->attrs[NL80211_ATTR_KEYS]);
4629 if (IS_ERR(connkeys))
4630 return PTR_ERR(connkeys);
4631 }
04a773ad 4632
4c476991 4633 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4634 if (err)
4635 kfree(connkeys);
04a773ad
JB		 4636 return err;
4637}
4638
4639static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4640{
4c476991
JB		 4641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4642 struct net_device *dev = info->user_ptr[1];
04a773ad 4643
4c476991
JB		 4644 if (!rdev->ops->leave_ibss)
4645 return -EOPNOTSUPP;
04a773ad 4646
4c476991
JB		 4647 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4648 return -EOPNOTSUPP;
04a773ad 4649
4c476991 4650 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4651}
4652
aff89a9b
JB		 4653#ifdef CONFIG_NL80211_TESTMODE
4654static struct genl_multicast_group nl80211_testmode_mcgrp = {
4655 .name = "testmode",
4656};
4657
4658static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4659{
4c476991 4660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4661 int err;
4662
4663 if (!info->attrs[NL80211_ATTR_TESTDATA])
4664 return -EINVAL;
4665
aff89a9b
JB		 4666 err = -EOPNOTSUPP;
4667 if (rdev->ops->testmode_cmd) {
4668 rdev->testmode_info = info;
4669 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4670 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4671 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4672 rdev->testmode_info = NULL;
4673 }
4674
aff89a9b
JB		 4675 return err;
4676}
4677
71063f0e
WYG		 4678static int nl80211_testmode_dump(struct sk_buff *skb,
4679 struct netlink_callback *cb)
4680{
4681 struct cfg80211_registered_device *dev;
4682 int err;
4683 long phy_idx;
4684 void *data = NULL;
4685 int data_len = 0;
4686
4687 if (cb->args[0]) {
4688 /*
4689 * 0 is a valid index, but not valid for args[0],
4690 * so we need to offset by 1.
4691 */
4692 phy_idx = cb->args[0] - 1;
4693 } else {
4694 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4695 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4696 nl80211_policy);
4697 if (err)
4698 return err;
4699 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4700 return -EINVAL;
4701 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4702 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4703 cb->args[1] =
4704 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4705 }
4706
4707 if (cb->args[1]) {
4708 data = nla_data((void *)cb->args[1]);
4709 data_len = nla_len((void *)cb->args[1]);
4710 }
4711
4712 mutex_lock(&cfg80211_mutex);
4713 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4714 if (!dev) {
4715 mutex_unlock(&cfg80211_mutex);
4716 return -ENOENT;
4717 }
4718 cfg80211_lock_rdev(dev);
4719 mutex_unlock(&cfg80211_mutex);
4720
4721 if (!dev->ops->testmode_dump) {
4722 err = -EOPNOTSUPP;
4723 goto out_err;
4724 }
4725
4726 while (1) {
4727 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4728 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4729 NL80211_CMD_TESTMODE);
4730 struct nlattr *tmdata;
4731
4732 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4733 genlmsg_cancel(skb, hdr);
4734 break;
4735 }
4736
4737 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4738 if (!tmdata) {
4739 genlmsg_cancel(skb, hdr);
4740 break;
4741 }
4742 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4743 data, data_len);
4744 nla_nest_end(skb, tmdata);
4745
4746 if (err == -ENOBUFS || err == -ENOENT) {
4747 genlmsg_cancel(skb, hdr);
4748 break;
4749 } else if (err) {
4750 genlmsg_cancel(skb, hdr);
4751 goto out_err;
4752 }
4753
4754 genlmsg_end(skb, hdr);
4755 }
4756
4757 err = skb->len;
4758 /* see above */
4759 cb->args[0] = phy_idx + 1;
4760 out_err:
4761 cfg80211_unlock_rdev(dev);
4762 return err;
4763}
4764
aff89a9b
JB		 4765static struct sk_buff *
4766__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4767 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4768{
4769 struct sk_buff *skb;
4770 void *hdr;
4771 struct nlattr *data;
4772
4773 skb = nlmsg_new(approxlen + 100, gfp);
4774 if (!skb)
4775 return NULL;
4776
4777 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4778 if (!hdr) {
4779 kfree_skb(skb);
4780 return NULL;
4781 }
4782
4783 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4784 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4785
4786 ((void **)skb->cb)[0] = rdev;
4787 ((void **)skb->cb)[1] = hdr;
4788 ((void **)skb->cb)[2] = data;
4789
4790 return skb;
4791
4792 nla_put_failure:
4793 kfree_skb(skb);
4794 return NULL;
4795}
4796
4797struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4798 int approxlen)
4799{
4800 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4801
4802 if (WARN_ON(!rdev->testmode_info))
4803 return NULL;
4804
4805 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4806 rdev->testmode_info->snd_pid,
4807 rdev->testmode_info->snd_seq,
4808 GFP_KERNEL);
4809}
4810EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4811
4812int cfg80211_testmode_reply(struct sk_buff *skb)
4813{
4814 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4815 void *hdr = ((void **)skb->cb)[1];
4816 struct nlattr *data = ((void **)skb->cb)[2];
4817
4818 if (WARN_ON(!rdev->testmode_info)) {
4819 kfree_skb(skb);
4820 return -EINVAL;
4821 }
4822
4823 nla_nest_end(skb, data);
4824 genlmsg_end(skb, hdr);
4825 return genlmsg_reply(skb, rdev->testmode_info);
4826}
4827EXPORT_SYMBOL(cfg80211_testmode_reply);
4828
4829struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4830 int approxlen, gfp_t gfp)
4831{
4832 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4833
4834 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4835}
4836EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4837
4838void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4839{
4840 void *hdr = ((void **)skb->cb)[1];
4841 struct nlattr *data = ((void **)skb->cb)[2];
4842
4843 nla_nest_end(skb, data);
4844 genlmsg_end(skb, hdr);
4845 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4846}
4847EXPORT_SYMBOL(cfg80211_testmode_event);
4848#endif
4849
b23aa676
SO		 4850static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4851{
4c476991
JB		 4852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4853 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4854 struct cfg80211_connect_params connect;
4855 struct wiphy *wiphy;
fffd0934 4856 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4857 int err;
4858
4859 memset(&connect, 0, sizeof(connect));
4860
4861 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4862 return -EINVAL;
4863
4864 if (!info->attrs[NL80211_ATTR_SSID] ||
4865 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4866 return -EINVAL;
4867
4868 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4869 connect.auth_type =
4870 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4871 if (!nl80211_valid_auth_type(connect.auth_type))
4872 return -EINVAL;
4873 } else
4874 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4875
4876 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4877
c0692b8f 4878 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4879 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4880 if (err)
4881 return err;
b23aa676 4882
074ac8df 4883 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4884 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4885 return -EOPNOTSUPP;
b23aa676 4886
79c97e97 4887 wiphy = &rdev->wiphy;
b23aa676 4888
b23aa676
SO		 4889 if (info->attrs[NL80211_ATTR_MAC])
4890 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4891 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4892 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4893
4894 if (info->attrs[NL80211_ATTR_IE]) {
4895 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4896 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4897 }
4898
4899 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4900 connect.channel =
4901 ieee80211_get_channel(wiphy,
4902 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4903 if (!connect.channel ||
4c476991
JB		 4904 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4905 return -EINVAL;
b23aa676
SO		 4906 }
4907
fffd0934
JB		 4908 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4909 connkeys = nl80211_parse_connkeys(rdev,
4910 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4911 if (IS_ERR(connkeys))
4912 return PTR_ERR(connkeys);
fffd0934
JB		 4913 }
4914
4915 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4916 if (err)
4917 kfree(connkeys);
b23aa676
SO		 4918 return err;
4919}
4920
4921static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4922{
4c476991
JB		 4923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4924 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4925 u16 reason;
4926
4927 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4928 reason = WLAN_REASON_DEAUTH_LEAVING;
4929 else
4930 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4931
4932 if (reason == 0)
4933 return -EINVAL;
4934
074ac8df 4935 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4936 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4937 return -EOPNOTSUPP;
b23aa676 4938
4c476991 4939 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4940}
4941
463d0183
JB		 4942static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4943{
4c476991 4944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4945 struct net *net;
4946 int err;
4947 u32 pid;
4948
4949 if (!info->attrs[NL80211_ATTR_PID])
4950 return -EINVAL;
4951
4952 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4953
463d0183 4954 net = get_net_ns_by_pid(pid);
4c476991
JB		 4955 if (IS_ERR(net))
4956 return PTR_ERR(net);
463d0183
JB		 4957
4958 err = 0;
4959
4960 /* check if anything to do */
4c476991
JB		 4961 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4962 err = cfg80211_switch_netns(rdev, net);
463d0183 4963
463d0183 4964 put_net(net);
463d0183
JB		 4965 return err;
4966}
4967
67fbb16b
SO		 4968static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4969{
4c476991 4970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4971 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4972 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4973 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4974 struct cfg80211_pmksa pmksa;
4975
4976 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4977
4978 if (!info->attrs[NL80211_ATTR_MAC])
4979 return -EINVAL;
4980
4981 if (!info->attrs[NL80211_ATTR_PMKID])
4982 return -EINVAL;
4983
67fbb16b
SO		 4984 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4985 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4986
074ac8df 4987 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4988 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4989 return -EOPNOTSUPP;
67fbb16b
SO		 4990
4991 switch (info->genlhdr->cmd) {
4992 case NL80211_CMD_SET_PMKSA:
4993 rdev_ops = rdev->ops->set_pmksa;
4994 break;
4995 case NL80211_CMD_DEL_PMKSA:
4996 rdev_ops = rdev->ops->del_pmksa;
4997 break;
4998 default:
4999 WARN_ON(1);
5000 break;
5001 }
5002
4c476991
JB		 5003 if (!rdev_ops)
5004 return -EOPNOTSUPP;
67fbb16b 5005
4c476991 5006 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5007}
5008
5009static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5010{
4c476991
JB		 5011 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5012 struct net_device *dev = info->user_ptr[1];
67fbb16b 5013
074ac8df 5014 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5015 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5016 return -EOPNOTSUPP;
67fbb16b 5017
4c476991
JB		 5018 if (!rdev->ops->flush_pmksa)
5019 return -EOPNOTSUPP;
67fbb16b 5020
4c476991 5021 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5022}
5023
109086ce
AN		 5024static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5025{
5026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5027 struct net_device *dev = info->user_ptr[1];
5028 u8 action_code, dialog_token;
5029 u16 status_code;
5030 u8 *peer;
5031
5032 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5033 !rdev->ops->tdls_mgmt)
5034 return -EOPNOTSUPP;
5035
5036 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5037 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5038 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5039 !info->attrs[NL80211_ATTR_IE] ||
5040 !info->attrs[NL80211_ATTR_MAC])
5041 return -EINVAL;
5042
5043 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5044 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5045 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5046 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5047
5048 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5049 dialog_token, status_code,
5050 nla_data(info->attrs[NL80211_ATTR_IE]),
5051 nla_len(info->attrs[NL80211_ATTR_IE]));
5052}
5053
5054static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5055{
5056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5057 struct net_device *dev = info->user_ptr[1];
5058 enum nl80211_tdls_operation operation;
5059 u8 *peer;
5060
5061 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5062 !rdev->ops->tdls_oper)
5063 return -EOPNOTSUPP;
5064
5065 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5066 !info->attrs[NL80211_ATTR_MAC])
5067 return -EINVAL;
5068
5069 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5070 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5071
5072 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5073}
5074
9588bbd5
JM		 5075static int nl80211_remain_on_channel(struct sk_buff *skb,
5076 struct genl_info *info)
5077{
4c476991
JB		 5078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5079 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5080 struct ieee80211_channel *chan;
5081 struct sk_buff *msg;
5082 void *hdr;
5083 u64 cookie;
5084 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5085 u32 freq, duration;
5086 int err;
5087
5088 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5089 !info->attrs[NL80211_ATTR_DURATION])
5090 return -EINVAL;
5091
5092 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5093
5094 /*
5095 * We should be on that channel for at least one jiffie,
5096 * and more than 5 seconds seems excessive.
5097 */
a293911d
JB		 5098 if (!duration || !msecs_to_jiffies(duration) ||
5099 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5100 return -EINVAL;
5101
4c476991
JB		 5102 if (!rdev->ops->remain_on_channel)
5103 return -EOPNOTSUPP;
9588bbd5 5104
9588bbd5
JM		 5105 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5106 channel_type = nla_get_u32(
5107 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5108 if (channel_type != NL80211_CHAN_NO_HT &&
5109 channel_type != NL80211_CHAN_HT20 &&
5110 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5111 channel_type != NL80211_CHAN_HT40MINUS)
5112 return -EINVAL;
9588bbd5
JM		 5113 }
5114
5115 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5116 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5117 if (chan == NULL)
5118 return -EINVAL;
9588bbd5
JM		 5119
5120 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5121 if (!msg)
5122 return -ENOMEM;
9588bbd5
JM		 5123
5124 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5125 NL80211_CMD_REMAIN_ON_CHANNEL);
5126
5127 if (IS_ERR(hdr)) {
5128 err = PTR_ERR(hdr);
5129 goto free_msg;
5130 }
5131
5132 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5133 channel_type, duration, &cookie);
5134
5135 if (err)
5136 goto free_msg;
5137
5138 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5139
5140 genlmsg_end(msg, hdr);
4c476991
JB		 5141
5142 return genlmsg_reply(msg, info);
9588bbd5
JM		 5143
5144 nla_put_failure:
5145 err = -ENOBUFS;
5146 free_msg:
5147 nlmsg_free(msg);
9588bbd5
JM		 5148 return err;
5149}
5150
5151static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5152 struct genl_info *info)
5153{
4c476991
JB		 5154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5155 struct net_device *dev = info->user_ptr[1];
9588bbd5 5156 u64 cookie;
9588bbd5
JM		 5157
5158 if (!info->attrs[NL80211_ATTR_COOKIE])
5159 return -EINVAL;
5160
4c476991
JB		 5161 if (!rdev->ops->cancel_remain_on_channel)
5162 return -EOPNOTSUPP;
9588bbd5 5163
9588bbd5
JM		 5164 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5165
4c476991 5166 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5167}
5168
13ae75b1
JM		 5169static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5170 u8 *rates, u8 rates_len)
5171{
5172 u8 i;
5173 u32 mask = 0;
5174
5175 for (i = 0; i < rates_len; i++) {
5176 int rate = (rates[i] & 0x7f) * 5;
5177 int ridx;
5178 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5179 struct ieee80211_rate *srate =
5180 &sband->bitrates[ridx];
5181 if (rate == srate->bitrate) {
5182 mask |= 1 << ridx;
5183 break;
5184 }
5185 }
5186 if (ridx == sband->n_bitrates)
5187 return 0; /* rate not found */
5188 }
5189
5190 return mask;
5191}
5192
b54452b0 5193static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5194 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5195 .len = NL80211_MAX_SUPP_RATES },
5196};
5197
5198static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5199 struct genl_info *info)
5200{
5201 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5203 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5204 int rem, i;
5205 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5206 struct nlattr *tx_rates;
5207 struct ieee80211_supported_band *sband;
5208
5209 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5210 return -EINVAL;
5211
4c476991
JB		 5212 if (!rdev->ops->set_bitrate_mask)
5213 return -EOPNOTSUPP;
13ae75b1
JM		 5214
5215 memset(&mask, 0, sizeof(mask));
5216 /* Default to all rates enabled */
5217 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5218 sband = rdev->wiphy.bands[i];
5219 mask.control[i].legacy =
5220 sband ? (1 << sband->n_bitrates) - 1 : 0;
5221 }
5222
5223 /*
5224 * The nested attribute uses enum nl80211_band as the index. This maps
5225 * directly to the enum ieee80211_band values used in cfg80211.
5226 */
5227 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5228 {
5229 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5230 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5231 return -EINVAL;
13ae75b1 5232 sband = rdev->wiphy.bands[band];
4c476991
JB		 5233 if (sband == NULL)
5234 return -EINVAL;
13ae75b1
JM		 5235 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5236 nla_len(tx_rates), nl80211_txattr_policy);
5237 if (tb[NL80211_TXRATE_LEGACY]) {
5238 mask.control[band].legacy = rateset_to_mask(
5239 sband,
5240 nla_data(tb[NL80211_TXRATE_LEGACY]),
5241 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5242 if (mask.control[band].legacy == 0)
5243 return -EINVAL;
13ae75b1
JM		 5244 }
5245 }
5246
4c476991 5247 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5248}
5249
2e161f78 5250static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5251{
4c476991
JB		 5252 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5253 struct net_device *dev = info->user_ptr[1];
2e161f78 5254 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5255
5256 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5257 return -EINVAL;
5258
2e161f78
JB		 5259 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5260 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5261
9d38d85d 5262 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5263 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5264 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5266 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5267 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5269 return -EOPNOTSUPP;
026331c4
JM		 5270
5271 /* not much point in registering if we can't reply */
4c476991
JB		 5272 if (!rdev->ops->mgmt_tx)
5273 return -EOPNOTSUPP;
026331c4 5274
4c476991 5275 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5276 frame_type,
026331c4
JM		 5277 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5278 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5279}
5280
2e161f78 5281static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5282{
4c476991
JB		 5283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5284 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5285 struct ieee80211_channel *chan;
5286 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5287 bool channel_type_valid = false;
026331c4
JM		 5288 u32 freq;
5289 int err;
d64d373f 5290 void *hdr = NULL;
026331c4 5291 u64 cookie;
e247bd90 5292 struct sk_buff *msg = NULL;
f7ca38df 5293 unsigned int wait = 0;
e247bd90
JB		 5294 bool offchan, no_cck, dont_wait_for_ack;
5295
5296 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5297
5298 if (!info->attrs[NL80211_ATTR_FRAME] ||
5299 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5300 return -EINVAL;
5301
4c476991
JB		 5302 if (!rdev->ops->mgmt_tx)
5303 return -EOPNOTSUPP;
026331c4 5304
9d38d85d 5305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5306 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5307 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5308 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5309 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5310 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5311 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5312 return -EOPNOTSUPP;
026331c4 5313
f7ca38df
JB		 5314 if (info->attrs[NL80211_ATTR_DURATION]) {
5315 if (!rdev->ops->mgmt_tx_cancel_wait)
5316 return -EINVAL;
5317 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5318 }
5319
026331c4
JM		 5320 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5321 channel_type = nla_get_u32(
5322 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5323 if (channel_type != NL80211_CHAN_NO_HT &&
5324 channel_type != NL80211_CHAN_HT20 &&
5325 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5326 channel_type != NL80211_CHAN_HT40MINUS)
5327 return -EINVAL;
252aa631 5328 channel_type_valid = true;
026331c4
JM		 5329 }
5330
f7ca38df
JB		 5331 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5332
e9f935e3
RM		 5333 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5334
026331c4
JM		 5335 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5336 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5337 if (chan == NULL)
5338 return -EINVAL;
026331c4 5339
e247bd90
JB		 5340 if (!dont_wait_for_ack) {
5341 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5342 if (!msg)
5343 return -ENOMEM;
026331c4 5344
e247bd90
JB		 5345 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5346 NL80211_CMD_FRAME);
026331c4 5347
e247bd90
JB		 5348 if (IS_ERR(hdr)) {
5349 err = PTR_ERR(hdr);
5350 goto free_msg;
5351 }
026331c4 5352 }
e247bd90 5353
f7ca38df
JB		 5354 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5355 channel_type_valid, wait,
2e161f78
JB		 5356 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5357 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5358 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5359 if (err)
5360 goto free_msg;
5361
e247bd90
JB		 5362 if (msg) {
5363 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5364
e247bd90
JB		 5365 genlmsg_end(msg, hdr);
5366 return genlmsg_reply(msg, info);
5367 }
5368
5369 return 0;
026331c4
JM		 5370
5371 nla_put_failure:
5372 err = -ENOBUFS;
5373 free_msg:
5374 nlmsg_free(msg);
026331c4
JM		 5375 return err;
5376}
5377
f7ca38df
JB		 5378static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5379{
5380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5381 struct net_device *dev = info->user_ptr[1];
5382 u64 cookie;
5383
5384 if (!info->attrs[NL80211_ATTR_COOKIE])
5385 return -EINVAL;
5386
5387 if (!rdev->ops->mgmt_tx_cancel_wait)
5388 return -EOPNOTSUPP;
5389
5390 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5392 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5393 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5396 return -EOPNOTSUPP;
5397
5398 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5399
5400 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5401}
5402
ffb9eb3d
KV		 5403static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5404{
4c476991 5405 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5406 struct wireless_dev *wdev;
4c476991 5407 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5408 u8 ps_state;
5409 bool state;
5410 int err;
5411
4c476991
JB		 5412 if (!info->attrs[NL80211_ATTR_PS_STATE])
5413 return -EINVAL;
ffb9eb3d
KV		 5414
5415 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5416
4c476991
JB		 5417 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5418 return -EINVAL;
ffb9eb3d
KV		 5419
5420 wdev = dev->ieee80211_ptr;
5421
4c476991
JB		 5422 if (!rdev->ops->set_power_mgmt)
5423 return -EOPNOTSUPP;
ffb9eb3d
KV		 5424
5425 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5426
5427 if (state == wdev->ps)
4c476991 5428 return 0;
ffb9eb3d 5429
4c476991
JB		 5430 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5431 wdev->ps_timeout);
5432 if (!err)
5433 wdev->ps = state;
ffb9eb3d
KV		 5434 return err;
5435}
5436
5437static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5438{
4c476991 5439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5440 enum nl80211_ps_state ps_state;
5441 struct wireless_dev *wdev;
4c476991 5442 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5443 struct sk_buff *msg;
5444 void *hdr;
5445 int err;
5446
ffb9eb3d
KV		 5447 wdev = dev->ieee80211_ptr;
5448
4c476991
JB		 5449 if (!rdev->ops->set_power_mgmt)
5450 return -EOPNOTSUPP;
ffb9eb3d
KV		 5451
5452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5453 if (!msg)
5454 return -ENOMEM;
ffb9eb3d
KV		 5455
5456 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5457 NL80211_CMD_GET_POWER_SAVE);
5458 if (!hdr) {
4c476991 5459 err = -ENOBUFS;
ffb9eb3d
KV		 5460 goto free_msg;
5461 }
5462
5463 if (wdev->ps)
5464 ps_state = NL80211_PS_ENABLED;
5465 else
5466 ps_state = NL80211_PS_DISABLED;
5467
5468 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5469
5470 genlmsg_end(msg, hdr);
4c476991 5471 return genlmsg_reply(msg, info);
ffb9eb3d 5472
4c476991 5473 nla_put_failure:
ffb9eb3d 5474 err = -ENOBUFS;
4c476991 5475 free_msg:
ffb9eb3d 5476 nlmsg_free(msg);
ffb9eb3d
KV		 5477 return err;
5478}
5479
d6dc1a38
JO		 5480static struct nla_policy
5481nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5482 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5483 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5484 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5485};
5486
5487static int nl80211_set_cqm_rssi(struct genl_info *info,
5488 s32 threshold, u32 hysteresis)
5489{
4c476991 5490 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5491 struct wireless_dev *wdev;
4c476991 5492 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5493
5494 if (threshold > 0)
5495 return -EINVAL;
5496
d6dc1a38
JO		 5497 wdev = dev->ieee80211_ptr;
5498
4c476991
JB		 5499 if (!rdev->ops->set_cqm_rssi_config)
5500 return -EOPNOTSUPP;
d6dc1a38 5501
074ac8df 5502 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5503 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5504 return -EOPNOTSUPP;
d6dc1a38 5505
4c476991
JB		 5506 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5507 threshold, hysteresis);
d6dc1a38
JO		 5508}
5509
5510static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5511{
5512 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5513 struct nlattr *cqm;
5514 int err;
5515
5516 cqm = info->attrs[NL80211_ATTR_CQM];
5517 if (!cqm) {
5518 err = -EINVAL;
5519 goto out;
5520 }
5521
5522 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5523 nl80211_attr_cqm_policy);
5524 if (err)
5525 goto out;
5526
5527 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5528 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5529 s32 threshold;
5530 u32 hysteresis;
5531 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5532 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5533 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5534 } else
5535 err = -EINVAL;
5536
5537out:
5538 return err;
5539}
5540
29cbe68c
JB		 5541static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5542{
5543 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5544 struct net_device *dev = info->user_ptr[1];
5545 struct mesh_config cfg;
c80d545d 5546 struct mesh_setup setup;
29cbe68c
JB		 5547 int err;
5548
5549 /* start with default */
5550 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5551 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5552
24bdd9f4 5553 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5554 /* and parse parameters if given */
24bdd9f4 5555 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5556 if (err)
5557 return err;
5558 }
5559
5560 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5561 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5562 return -EINVAL;
5563
c80d545d
JC		 5564 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5565 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5566
5567 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5568 /* parse additional setup parameters if given */
5569 err = nl80211_parse_mesh_setup(info, &setup);
5570 if (err)
5571 return err;
5572 }
5573
5574 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5575}
5576
5577static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5578{
5579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5580 struct net_device *dev = info->user_ptr[1];
5581
5582 return cfg80211_leave_mesh(rdev, dev);
5583}
5584
ff1b6e69
JB		 5585static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5586{
5587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5588 struct sk_buff *msg;
5589 void *hdr;
5590
5591 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5592 return -EOPNOTSUPP;
5593
5594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5595 if (!msg)
5596 return -ENOMEM;
5597
5598 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5599 NL80211_CMD_GET_WOWLAN);
5600 if (!hdr)
5601 goto nla_put_failure;
5602
5603 if (rdev->wowlan) {
5604 struct nlattr *nl_wowlan;
5605
5606 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5607 if (!nl_wowlan)
5608 goto nla_put_failure;
5609
5610 if (rdev->wowlan->any)
5611 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5612 if (rdev->wowlan->disconnect)
5613 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5614 if (rdev->wowlan->magic_pkt)
5615 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5616 if (rdev->wowlan->gtk_rekey_failure)
5617 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5618 if (rdev->wowlan->eap_identity_req)
5619 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5620 if (rdev->wowlan->four_way_handshake)
5621 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5622 if (rdev->wowlan->rfkill_release)
5623 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5624 if (rdev->wowlan->n_patterns) {
5625 struct nlattr *nl_pats, *nl_pat;
5626 int i, pat_len;
5627
5628 nl_pats = nla_nest_start(msg,
5629 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5630 if (!nl_pats)
5631 goto nla_put_failure;
5632
5633 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5634 nl_pat = nla_nest_start(msg, i + 1);
5635 if (!nl_pat)
5636 goto nla_put_failure;
5637 pat_len = rdev->wowlan->patterns[i].pattern_len;
5638 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5639 DIV_ROUND_UP(pat_len, 8),
5640 rdev->wowlan->patterns[i].mask);
5641 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5642 pat_len,
5643 rdev->wowlan->patterns[i].pattern);
5644 nla_nest_end(msg, nl_pat);
5645 }
5646 nla_nest_end(msg, nl_pats);
5647 }
5648
5649 nla_nest_end(msg, nl_wowlan);
5650 }
5651
5652 genlmsg_end(msg, hdr);
5653 return genlmsg_reply(msg, info);
5654
5655nla_put_failure:
5656 nlmsg_free(msg);
5657 return -ENOBUFS;
5658}
5659
5660static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5661{
5662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5663 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5664 struct cfg80211_wowlan no_triggers = {};
5665 struct cfg80211_wowlan new_triggers = {};
5666 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5667 int err, i;
5668
5669 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5670 return -EOPNOTSUPP;
5671
5672 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5673 goto no_triggers;
5674
5675 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5676 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5677 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5678 nl80211_wowlan_policy);
5679 if (err)
5680 return err;
5681
5682 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5683 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5684 return -EINVAL;
5685 new_triggers.any = true;
5686 }
5687
5688 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5689 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5690 return -EINVAL;
5691 new_triggers.disconnect = true;
5692 }
5693
5694 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5695 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5696 return -EINVAL;
5697 new_triggers.magic_pkt = true;
5698 }
5699
77dbbb13
JB		 5700 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5701 return -EINVAL;
5702
5703 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5704 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5705 return -EINVAL;
5706 new_triggers.gtk_rekey_failure = true;
5707 }
5708
5709 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5710 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5711 return -EINVAL;
5712 new_triggers.eap_identity_req = true;
5713 }
5714
5715 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5716 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5717 return -EINVAL;
5718 new_triggers.four_way_handshake = true;
5719 }
5720
5721 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5722 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5723 return -EINVAL;
5724 new_triggers.rfkill_release = true;
5725 }
5726
ff1b6e69
JB		 5727 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5728 struct nlattr *pat;
5729 int n_patterns = 0;
5730 int rem, pat_len, mask_len;
5731 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5732
5733 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5734 rem)
5735 n_patterns++;
5736 if (n_patterns > wowlan->n_patterns)
5737 return -EINVAL;
5738
5739 new_triggers.patterns = kcalloc(n_patterns,
5740 sizeof(new_triggers.patterns[0]),
5741 GFP_KERNEL);
5742 if (!new_triggers.patterns)
5743 return -ENOMEM;
5744
5745 new_triggers.n_patterns = n_patterns;
5746 i = 0;
5747
5748 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5749 rem) {
5750 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5751 nla_data(pat), nla_len(pat), NULL);
5752 err = -EINVAL;
5753 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5754 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5755 goto error;
5756 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5757 mask_len = DIV_ROUND_UP(pat_len, 8);
5758 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5759 mask_len)
5760 goto error;
5761 if (pat_len > wowlan->pattern_max_len ||
5762 pat_len < wowlan->pattern_min_len)
5763 goto error;
5764
5765 new_triggers.patterns[i].mask =
5766 kmalloc(mask_len + pat_len, GFP_KERNEL);
5767 if (!new_triggers.patterns[i].mask) {
5768 err = -ENOMEM;
5769 goto error;
5770 }
5771 new_triggers.patterns[i].pattern =
5772 new_triggers.patterns[i].mask + mask_len;
5773 memcpy(new_triggers.patterns[i].mask,
5774 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5775 mask_len);
5776 new_triggers.patterns[i].pattern_len = pat_len;
5777 memcpy(new_triggers.patterns[i].pattern,
5778 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5779 pat_len);
5780 i++;
5781 }
5782 }
5783
5784 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5785 struct cfg80211_wowlan *ntrig;
5786 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5787 GFP_KERNEL);
5788 if (!ntrig) {
5789 err = -ENOMEM;
5790 goto error;
5791 }
5792 cfg80211_rdev_free_wowlan(rdev);
5793 rdev->wowlan = ntrig;
5794 } else {
5795 no_triggers:
5796 cfg80211_rdev_free_wowlan(rdev);
5797 rdev->wowlan = NULL;
5798 }
5799
5800 return 0;
5801 error:
5802 for (i = 0; i < new_triggers.n_patterns; i++)
5803 kfree(new_triggers.patterns[i].mask);
5804 kfree(new_triggers.patterns);
5805 return err;
5806}
5807
e5497d76
JB		 5808static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5809{
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811 struct net_device *dev = info->user_ptr[1];
5812 struct wireless_dev *wdev = dev->ieee80211_ptr;
5813 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5814 struct cfg80211_gtk_rekey_data rekey_data;
5815 int err;
5816
5817 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5818 return -EINVAL;
5819
5820 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5821 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5822 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5823 nl80211_rekey_policy);
5824 if (err)
5825 return err;
5826
5827 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5828 return -ERANGE;
5829 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5830 return -ERANGE;
5831 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5832 return -ERANGE;
5833
5834 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5835 NL80211_KEK_LEN);
5836 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5837 NL80211_KCK_LEN);
5838 memcpy(rekey_data.replay_ctr,
5839 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5840 NL80211_REPLAY_CTR_LEN);
5841
5842 wdev_lock(wdev);
5843 if (!wdev->current_bss) {
5844 err = -ENOTCONN;
5845 goto out;
5846 }
5847
5848 if (!rdev->ops->set_rekey_data) {
5849 err = -EOPNOTSUPP;
5850 goto out;
5851 }
5852
5853 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5854 out:
5855 wdev_unlock(wdev);
5856 return err;
5857}
5858
28946da7
JB		 5859static int nl80211_register_unexpected_frame(struct sk_buff *skb,
5860 struct genl_info *info)
5861{
5862 struct net_device *dev = info->user_ptr[1];
5863 struct wireless_dev *wdev = dev->ieee80211_ptr;
5864
5865 if (wdev->iftype != NL80211_IFTYPE_AP &&
5866 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5867 return -EINVAL;
5868
5869 if (wdev->ap_unexpected_nlpid)
5870 return -EBUSY;
5871
5872 wdev->ap_unexpected_nlpid = info->snd_pid;
5873 return 0;
5874}
5875
7f6cf311
JB		 5876static int nl80211_probe_client(struct sk_buff *skb,
5877 struct genl_info *info)
5878{
5879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5880 struct net_device *dev = info->user_ptr[1];
5881 struct wireless_dev *wdev = dev->ieee80211_ptr;
5882 struct sk_buff *msg;
5883 void *hdr;
5884 const u8 *addr;
5885 u64 cookie;
5886 int err;
5887
5888 if (wdev->iftype != NL80211_IFTYPE_AP &&
5889 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5890 return -EOPNOTSUPP;
5891
5892 if (!info->attrs[NL80211_ATTR_MAC])
5893 return -EINVAL;
5894
5895 if (!rdev->ops->probe_client)
5896 return -EOPNOTSUPP;
5897
5898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5899 if (!msg)
5900 return -ENOMEM;
5901
5902 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5903 NL80211_CMD_PROBE_CLIENT);
5904
5905 if (IS_ERR(hdr)) {
5906 err = PTR_ERR(hdr);
5907 goto free_msg;
5908 }
5909
5910 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5911
5912 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
5913 if (err)
5914 goto free_msg;
5915
5916 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5917
5918 genlmsg_end(msg, hdr);
5919
5920 return genlmsg_reply(msg, info);
5921
5922 nla_put_failure:
5923 err = -ENOBUFS;
5924 free_msg:
5925 nlmsg_free(msg);
5926 return err;
5927}
5928
5e760230
JB		 5929static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
5930{
5931 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5932
5933 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
5934 return -EOPNOTSUPP;
5935
5936 if (rdev->ap_beacons_nlpid)
5937 return -EBUSY;
5938
5939 rdev->ap_beacons_nlpid = info->snd_pid;
5940
5941 return 0;
5942}
5943
4c476991
JB		 5944#define NL80211_FLAG_NEED_WIPHY 0x01
5945#define NL80211_FLAG_NEED_NETDEV 0x02
5946#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5947#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5948#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5949 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5950
5951static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5952 struct genl_info *info)
5953{
5954 struct cfg80211_registered_device *rdev;
5955 struct net_device *dev;
5956 int err;
5957 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5958
5959 if (rtnl)
5960 rtnl_lock();
5961
5962 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5963 rdev = cfg80211_get_dev_from_info(info);
5964 if (IS_ERR(rdev)) {
5965 if (rtnl)
5966 rtnl_unlock();
5967 return PTR_ERR(rdev);
5968 }
5969 info->user_ptr[0] = rdev;
5970 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5971 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5972 if (err) {
5973 if (rtnl)
5974 rtnl_unlock();
5975 return err;
5976 }
41265714
JB		 5977 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5978 !netif_running(dev)) {
d537f5fd
JB		 5979 cfg80211_unlock_rdev(rdev);
5980 dev_put(dev);
41265714
JB		 5981 if (rtnl)
5982 rtnl_unlock();
5983 return -ENETDOWN;
5984 }
4c476991
JB		 5985 info->user_ptr[0] = rdev;
5986 info->user_ptr[1] = dev;
5987 }
5988
5989 return 0;
5990}
5991
5992static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5993 struct genl_info *info)
5994{
5995 if (info->user_ptr[0])
5996 cfg80211_unlock_rdev(info->user_ptr[0]);
5997 if (info->user_ptr[1])
5998 dev_put(info->user_ptr[1]);
5999 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6000 rtnl_unlock();
6001}
6002
55682965
JB		 6003static struct genl_ops nl80211_ops[] = {
6004 {
6005 .cmd = NL80211_CMD_GET_WIPHY,
6006 .doit = nl80211_get_wiphy,
6007 .dumpit = nl80211_dump_wiphy,
6008 .policy = nl80211_policy,
6009 /* can be retrieved by unprivileged users */
4c476991 6010 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6011 },
6012 {
6013 .cmd = NL80211_CMD_SET_WIPHY,
6014 .doit = nl80211_set_wiphy,
6015 .policy = nl80211_policy,
6016 .flags = GENL_ADMIN_PERM,
4c476991 6017 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6018 },
6019 {
6020 .cmd = NL80211_CMD_GET_INTERFACE,
6021 .doit = nl80211_get_interface,
6022 .dumpit = nl80211_dump_interface,
6023 .policy = nl80211_policy,
6024 /* can be retrieved by unprivileged users */
4c476991 6025 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6026 },
6027 {
6028 .cmd = NL80211_CMD_SET_INTERFACE,
6029 .doit = nl80211_set_interface,
6030 .policy = nl80211_policy,
6031 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6032 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6033 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6034 },
6035 {
6036 .cmd = NL80211_CMD_NEW_INTERFACE,
6037 .doit = nl80211_new_interface,
6038 .policy = nl80211_policy,
6039 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6040 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6041 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6042 },
6043 {
6044 .cmd = NL80211_CMD_DEL_INTERFACE,
6045 .doit = nl80211_del_interface,
6046 .policy = nl80211_policy,
41ade00f 6047 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6048 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6049 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6050 },
6051 {
6052 .cmd = NL80211_CMD_GET_KEY,
6053 .doit = nl80211_get_key,
6054 .policy = nl80211_policy,
6055 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6056 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6057 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6058 },
6059 {
6060 .cmd = NL80211_CMD_SET_KEY,
6061 .doit = nl80211_set_key,
6062 .policy = nl80211_policy,
6063 .flags = GENL_ADMIN_PERM,
41265714 6064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6065 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6066 },
6067 {
6068 .cmd = NL80211_CMD_NEW_KEY,
6069 .doit = nl80211_new_key,
6070 .policy = nl80211_policy,
6071 .flags = GENL_ADMIN_PERM,
41265714 6072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6073 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6074 },
6075 {
6076 .cmd = NL80211_CMD_DEL_KEY,
6077 .doit = nl80211_del_key,
6078 .policy = nl80211_policy,
55682965 6079 .flags = GENL_ADMIN_PERM,
41265714 6080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6081 NL80211_FLAG_NEED_RTNL,
55682965 6082 },
ed1b6cc7
JB		 6083 {
6084 .cmd = NL80211_CMD_SET_BEACON,
6085 .policy = nl80211_policy,
6086 .flags = GENL_ADMIN_PERM,
6087 .doit = nl80211_addset_beacon,
4c476991
JB		 6088 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6089 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6090 },
6091 {
6092 .cmd = NL80211_CMD_NEW_BEACON,
6093 .policy = nl80211_policy,
6094 .flags = GENL_ADMIN_PERM,
6095 .doit = nl80211_addset_beacon,
4c476991
JB		 6096 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6097 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6098 },
6099 {
6100 .cmd = NL80211_CMD_DEL_BEACON,
6101 .policy = nl80211_policy,
6102 .flags = GENL_ADMIN_PERM,
6103 .doit = nl80211_del_beacon,
4c476991
JB		 6104 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6105 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6106 },
5727ef1b
JB		 6107 {
6108 .cmd = NL80211_CMD_GET_STATION,
6109 .doit = nl80211_get_station,
2ec600d6 6110 .dumpit = nl80211_dump_station,
5727ef1b 6111 .policy = nl80211_policy,
4c476991
JB		 6112 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6113 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6114 },
6115 {
6116 .cmd = NL80211_CMD_SET_STATION,
6117 .doit = nl80211_set_station,
6118 .policy = nl80211_policy,
6119 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6120 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6121 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6122 },
6123 {
6124 .cmd = NL80211_CMD_NEW_STATION,
6125 .doit = nl80211_new_station,
6126 .policy = nl80211_policy,
6127 .flags = GENL_ADMIN_PERM,
41265714 6128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6129 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6130 },
6131 {
6132 .cmd = NL80211_CMD_DEL_STATION,
6133 .doit = nl80211_del_station,
6134 .policy = nl80211_policy,
2ec600d6 6135 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6136 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6137 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6138 },
6139 {
6140 .cmd = NL80211_CMD_GET_MPATH,
6141 .doit = nl80211_get_mpath,
6142 .dumpit = nl80211_dump_mpath,
6143 .policy = nl80211_policy,
6144 .flags = GENL_ADMIN_PERM,
41265714 6145 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6146 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6147 },
6148 {
6149 .cmd = NL80211_CMD_SET_MPATH,
6150 .doit = nl80211_set_mpath,
6151 .policy = nl80211_policy,
6152 .flags = GENL_ADMIN_PERM,
41265714 6153 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6154 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6155 },
6156 {
6157 .cmd = NL80211_CMD_NEW_MPATH,
6158 .doit = nl80211_new_mpath,
6159 .policy = nl80211_policy,
6160 .flags = GENL_ADMIN_PERM,
41265714 6161 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6162 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6163 },
6164 {
6165 .cmd = NL80211_CMD_DEL_MPATH,
6166 .doit = nl80211_del_mpath,
6167 .policy = nl80211_policy,
9f1ba906 6168 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6169 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6170 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6171 },
6172 {
6173 .cmd = NL80211_CMD_SET_BSS,
6174 .doit = nl80211_set_bss,
6175 .policy = nl80211_policy,
b2e1b302 6176 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6177 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6178 NL80211_FLAG_NEED_RTNL,
b2e1b302 6179 },
f130347c
LR		 6180 {
6181 .cmd = NL80211_CMD_GET_REG,
6182 .doit = nl80211_get_reg,
6183 .policy = nl80211_policy,
6184 /* can be retrieved by unprivileged users */
6185 },
b2e1b302
LR		 6186 {
6187 .cmd = NL80211_CMD_SET_REG,
6188 .doit = nl80211_set_reg,
6189 .policy = nl80211_policy,
6190 .flags = GENL_ADMIN_PERM,
6191 },
6192 {
6193 .cmd = NL80211_CMD_REQ_SET_REG,
6194 .doit = nl80211_req_set_reg,
6195 .policy = nl80211_policy,
93da9cc1 6196 .flags = GENL_ADMIN_PERM,
6197 },
6198 {
24bdd9f4
JC		 6199 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6200 .doit = nl80211_get_mesh_config,
93da9cc1 6201 .policy = nl80211_policy,
6202 /* can be retrieved by unprivileged users */
4c476991
JB		 6203 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6204 NL80211_FLAG_NEED_RTNL,
93da9cc1 6205 },
6206 {
24bdd9f4
JC		 6207 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6208 .doit = nl80211_update_mesh_config,
93da9cc1 6209 .policy = nl80211_policy,
9aed3cc1 6210 .flags = GENL_ADMIN_PERM,
29cbe68c 6211 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6212 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6213 },
2a519311
JB		 6214 {
6215 .cmd = NL80211_CMD_TRIGGER_SCAN,
6216 .doit = nl80211_trigger_scan,
6217 .policy = nl80211_policy,
6218 .flags = GENL_ADMIN_PERM,
41265714 6219 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6220 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6221 },
6222 {
6223 .cmd = NL80211_CMD_GET_SCAN,
6224 .policy = nl80211_policy,
6225 .dumpit = nl80211_dump_scan,
6226 },
807f8a8c
LC		 6227 {
6228 .cmd = NL80211_CMD_START_SCHED_SCAN,
6229 .doit = nl80211_start_sched_scan,
6230 .policy = nl80211_policy,
6231 .flags = GENL_ADMIN_PERM,
6232 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6233 NL80211_FLAG_NEED_RTNL,
6234 },
6235 {
6236 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6237 .doit = nl80211_stop_sched_scan,
6238 .policy = nl80211_policy,
6239 .flags = GENL_ADMIN_PERM,
6240 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6241 NL80211_FLAG_NEED_RTNL,
6242 },
636a5d36
JM		 6243 {
6244 .cmd = NL80211_CMD_AUTHENTICATE,
6245 .doit = nl80211_authenticate,
6246 .policy = nl80211_policy,
6247 .flags = GENL_ADMIN_PERM,
41265714 6248 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6249 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6250 },
6251 {
6252 .cmd = NL80211_CMD_ASSOCIATE,
6253 .doit = nl80211_associate,
6254 .policy = nl80211_policy,
6255 .flags = GENL_ADMIN_PERM,
41265714 6256 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6257 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6258 },
6259 {
6260 .cmd = NL80211_CMD_DEAUTHENTICATE,
6261 .doit = nl80211_deauthenticate,
6262 .policy = nl80211_policy,
6263 .flags = GENL_ADMIN_PERM,
41265714 6264 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6265 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6266 },
6267 {
6268 .cmd = NL80211_CMD_DISASSOCIATE,
6269 .doit = nl80211_disassociate,
6270 .policy = nl80211_policy,
6271 .flags = GENL_ADMIN_PERM,
41265714 6272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6273 NL80211_FLAG_NEED_RTNL,
636a5d36 6274 },
04a773ad
JB		 6275 {
6276 .cmd = NL80211_CMD_JOIN_IBSS,
6277 .doit = nl80211_join_ibss,
6278 .policy = nl80211_policy,
6279 .flags = GENL_ADMIN_PERM,
41265714 6280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6281 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6282 },
6283 {
6284 .cmd = NL80211_CMD_LEAVE_IBSS,
6285 .doit = nl80211_leave_ibss,
6286 .policy = nl80211_policy,
6287 .flags = GENL_ADMIN_PERM,
41265714 6288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6289 NL80211_FLAG_NEED_RTNL,
04a773ad 6290 },
aff89a9b
JB		 6291#ifdef CONFIG_NL80211_TESTMODE
6292 {
6293 .cmd = NL80211_CMD_TESTMODE,
6294 .doit = nl80211_testmode_do,
71063f0e 6295 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6296 .policy = nl80211_policy,
6297 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6298 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6299 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6300 },
6301#endif
b23aa676
SO		 6302 {
6303 .cmd = NL80211_CMD_CONNECT,
6304 .doit = nl80211_connect,
6305 .policy = nl80211_policy,
6306 .flags = GENL_ADMIN_PERM,
41265714 6307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6308 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6309 },
6310 {
6311 .cmd = NL80211_CMD_DISCONNECT,
6312 .doit = nl80211_disconnect,
6313 .policy = nl80211_policy,
6314 .flags = GENL_ADMIN_PERM,
41265714 6315 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6316 NL80211_FLAG_NEED_RTNL,
b23aa676 6317 },
463d0183
JB		 6318 {
6319 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6320 .doit = nl80211_wiphy_netns,
6321 .policy = nl80211_policy,
6322 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6323 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6324 NL80211_FLAG_NEED_RTNL,
463d0183 6325 },
61fa713c
HS		 6326 {
6327 .cmd = NL80211_CMD_GET_SURVEY,
6328 .policy = nl80211_policy,
6329 .dumpit = nl80211_dump_survey,
6330 },
67fbb16b
SO		 6331 {
6332 .cmd = NL80211_CMD_SET_PMKSA,
6333 .doit = nl80211_setdel_pmksa,
6334 .policy = nl80211_policy,
6335 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6336 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6337 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6338 },
6339 {
6340 .cmd = NL80211_CMD_DEL_PMKSA,
6341 .doit = nl80211_setdel_pmksa,
6342 .policy = nl80211_policy,
6343 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6344 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6345 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6346 },
6347 {
6348 .cmd = NL80211_CMD_FLUSH_PMKSA,
6349 .doit = nl80211_flush_pmksa,
6350 .policy = nl80211_policy,
6351 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6353 NL80211_FLAG_NEED_RTNL,
67fbb16b 6354 },
9588bbd5
JM		 6355 {
6356 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6357 .doit = nl80211_remain_on_channel,
6358 .policy = nl80211_policy,
6359 .flags = GENL_ADMIN_PERM,
41265714 6360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6361 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6362 },
6363 {
6364 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6365 .doit = nl80211_cancel_remain_on_channel,
6366 .policy = nl80211_policy,
6367 .flags = GENL_ADMIN_PERM,
41265714 6368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6369 NL80211_FLAG_NEED_RTNL,
9588bbd5 6370 },
13ae75b1
JM		 6371 {
6372 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6373 .doit = nl80211_set_tx_bitrate_mask,
6374 .policy = nl80211_policy,
6375 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6376 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6377 NL80211_FLAG_NEED_RTNL,
13ae75b1 6378 },
026331c4 6379 {
2e161f78
JB		 6380 .cmd = NL80211_CMD_REGISTER_FRAME,
6381 .doit = nl80211_register_mgmt,
026331c4
JM		 6382 .policy = nl80211_policy,
6383 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6384 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6385 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6386 },
6387 {
2e161f78
JB		 6388 .cmd = NL80211_CMD_FRAME,
6389 .doit = nl80211_tx_mgmt,
026331c4 6390 .policy = nl80211_policy,
f7ca38df
JB		 6391 .flags = GENL_ADMIN_PERM,
6392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6393 NL80211_FLAG_NEED_RTNL,
6394 },
6395 {
6396 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6397 .doit = nl80211_tx_mgmt_cancel_wait,
6398 .policy = nl80211_policy,
026331c4 6399 .flags = GENL_ADMIN_PERM,
41265714 6400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6401 NL80211_FLAG_NEED_RTNL,
026331c4 6402 },
ffb9eb3d
KV		 6403 {
6404 .cmd = NL80211_CMD_SET_POWER_SAVE,
6405 .doit = nl80211_set_power_save,
6406 .policy = nl80211_policy,
6407 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6408 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6409 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6410 },
6411 {
6412 .cmd = NL80211_CMD_GET_POWER_SAVE,
6413 .doit = nl80211_get_power_save,
6414 .policy = nl80211_policy,
6415 /* can be retrieved by unprivileged users */
4c476991
JB		 6416 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6417 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6418 },
d6dc1a38
JO		 6419 {
6420 .cmd = NL80211_CMD_SET_CQM,
6421 .doit = nl80211_set_cqm,
6422 .policy = nl80211_policy,
6423 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6424 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6425 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6426 },
f444de05
JB		 6427 {
6428 .cmd = NL80211_CMD_SET_CHANNEL,
6429 .doit = nl80211_set_channel,
6430 .policy = nl80211_policy,
6431 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6432 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6433 NL80211_FLAG_NEED_RTNL,
f444de05 6434 },
e8347eba
BJ		 6435 {
6436 .cmd = NL80211_CMD_SET_WDS_PEER,
6437 .doit = nl80211_set_wds_peer,
6438 .policy = nl80211_policy,
6439 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6440 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6441 NL80211_FLAG_NEED_RTNL,
e8347eba 6442 },
29cbe68c
JB		 6443 {
6444 .cmd = NL80211_CMD_JOIN_MESH,
6445 .doit = nl80211_join_mesh,
6446 .policy = nl80211_policy,
6447 .flags = GENL_ADMIN_PERM,
6448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6449 NL80211_FLAG_NEED_RTNL,
6450 },
6451 {
6452 .cmd = NL80211_CMD_LEAVE_MESH,
6453 .doit = nl80211_leave_mesh,
6454 .policy = nl80211_policy,
6455 .flags = GENL_ADMIN_PERM,
6456 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6457 NL80211_FLAG_NEED_RTNL,
6458 },
ff1b6e69
JB		 6459 {
6460 .cmd = NL80211_CMD_GET_WOWLAN,
6461 .doit = nl80211_get_wowlan,
6462 .policy = nl80211_policy,
6463 /* can be retrieved by unprivileged users */
6464 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6465 NL80211_FLAG_NEED_RTNL,
6466 },
6467 {
6468 .cmd = NL80211_CMD_SET_WOWLAN,
6469 .doit = nl80211_set_wowlan,
6470 .policy = nl80211_policy,
6471 .flags = GENL_ADMIN_PERM,
6472 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6473 NL80211_FLAG_NEED_RTNL,
6474 },
e5497d76
JB		 6475 {
6476 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6477 .doit = nl80211_set_rekey_data,
6478 .policy = nl80211_policy,
6479 .flags = GENL_ADMIN_PERM,
6480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6481 NL80211_FLAG_NEED_RTNL,
6482 },
109086ce
AN		 6483 {
6484 .cmd = NL80211_CMD_TDLS_MGMT,
6485 .doit = nl80211_tdls_mgmt,
6486 .policy = nl80211_policy,
6487 .flags = GENL_ADMIN_PERM,
6488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6489 NL80211_FLAG_NEED_RTNL,
6490 },
6491 {
6492 .cmd = NL80211_CMD_TDLS_OPER,
6493 .doit = nl80211_tdls_oper,
6494 .policy = nl80211_policy,
6495 .flags = GENL_ADMIN_PERM,
6496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6497 NL80211_FLAG_NEED_RTNL,
6498 },
28946da7
JB		 6499 {
6500 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6501 .doit = nl80211_register_unexpected_frame,
6502 .policy = nl80211_policy,
6503 .flags = GENL_ADMIN_PERM,
6504 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6505 NL80211_FLAG_NEED_RTNL,
6506 },
7f6cf311
JB		 6507 {
6508 .cmd = NL80211_CMD_PROBE_CLIENT,
6509 .doit = nl80211_probe_client,
6510 .policy = nl80211_policy,
6511 .flags = GENL_ADMIN_PERM,
6512 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6513 NL80211_FLAG_NEED_RTNL,
6514 },
5e760230
JB		 6515 {
6516 .cmd = NL80211_CMD_REGISTER_BEACONS,
6517 .doit = nl80211_register_beacons,
6518 .policy = nl80211_policy,
6519 .flags = GENL_ADMIN_PERM,
6520 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6521 NL80211_FLAG_NEED_RTNL,
6522 },
55682965 6523};
9588bbd5 6524
6039f6d2
JM		 6525static struct genl_multicast_group nl80211_mlme_mcgrp = {
6526 .name = "mlme",
6527};
55682965
JB		 6528
6529/* multicast groups */
6530static struct genl_multicast_group nl80211_config_mcgrp = {
6531 .name = "config",
6532};
2a519311
JB		 6533static struct genl_multicast_group nl80211_scan_mcgrp = {
6534 .name = "scan",
6535};
73d54c9e
LR		 6536static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6537 .name = "regulatory",
6538};
55682965
JB		 6539
6540/* notification functions */
6541
6542void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6543{
6544 struct sk_buff *msg;
6545
fd2120ca 6546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6547 if (!msg)
6548 return;
6549
6550 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6551 nlmsg_free(msg);
6552 return;
6553 }
6554
463d0183
JB		 6555 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6556 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6557}
6558
362a415d
JB		 6559static int nl80211_add_scan_req(struct sk_buff *msg,
6560 struct cfg80211_registered_device *rdev)
6561{
6562 struct cfg80211_scan_request *req = rdev->scan_req;
6563 struct nlattr *nest;
6564 int i;
6565
667503dd
JB		 6566 ASSERT_RDEV_LOCK(rdev);
6567
362a415d
JB		 6568 if (WARN_ON(!req))
6569 return 0;
6570
6571 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6572 if (!nest)
6573 goto nla_put_failure;
6574 for (i = 0; i < req->n_ssids; i++)
6575 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6576 nla_nest_end(msg, nest);
6577
6578 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6579 if (!nest)
6580 goto nla_put_failure;
6581 for (i = 0; i < req->n_channels; i++)
6582 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6583 nla_nest_end(msg, nest);
6584
6585 if (req->ie)
6586 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6587
6588 return 0;
6589 nla_put_failure:
6590 return -ENOBUFS;
6591}
6592
a538e2d5
JB		 6593static int nl80211_send_scan_msg(struct sk_buff *msg,
6594 struct cfg80211_registered_device *rdev,
6595 struct net_device *netdev,
6596 u32 pid, u32 seq, int flags,
6597 u32 cmd)
2a519311
JB		 6598{
6599 void *hdr;
6600
6601 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6602 if (!hdr)
6603 return -1;
6604
b5850a7a 6605 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6606 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6607
362a415d
JB		 6608 /* ignore errors and send incomplete event anyway */
6609 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6610
6611 return genlmsg_end(msg, hdr);
6612
6613 nla_put_failure:
6614 genlmsg_cancel(msg, hdr);
6615 return -EMSGSIZE;
6616}
6617
807f8a8c
LC		 6618static int
6619nl80211_send_sched_scan_msg(struct sk_buff *msg,
6620 struct cfg80211_registered_device *rdev,
6621 struct net_device *netdev,
6622 u32 pid, u32 seq, int flags, u32 cmd)
6623{
6624 void *hdr;
6625
6626 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6627 if (!hdr)
6628 return -1;
6629
6630 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6631 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6632
6633 return genlmsg_end(msg, hdr);
6634
6635 nla_put_failure:
6636 genlmsg_cancel(msg, hdr);
6637 return -EMSGSIZE;
6638}
6639
a538e2d5
JB		 6640void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6641 struct net_device *netdev)
6642{
6643 struct sk_buff *msg;
6644
6645 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6646 if (!msg)
6647 return;
6648
6649 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6650 NL80211_CMD_TRIGGER_SCAN) < 0) {
6651 nlmsg_free(msg);
6652 return;
6653 }
6654
463d0183
JB		 6655 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6656 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6657}
6658
2a519311
JB		 6659void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6660 struct net_device *netdev)
6661{
6662 struct sk_buff *msg;
6663
fd2120ca 6664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6665 if (!msg)
6666 return;
6667
a538e2d5
JB		 6668 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6669 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6670 nlmsg_free(msg);
6671 return;
6672 }
6673
463d0183
JB		 6674 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6675 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6676}
6677
6678void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6679 struct net_device *netdev)
6680{
6681 struct sk_buff *msg;
6682
fd2120ca 6683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6684 if (!msg)
6685 return;
6686
a538e2d5
JB		 6687 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6688 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6689 nlmsg_free(msg);
6690 return;
6691 }
6692
463d0183
JB		 6693 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6694 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6695}
6696
807f8a8c
LC		 6697void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6698 struct net_device *netdev)
6699{
6700 struct sk_buff *msg;
6701
6702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6703 if (!msg)
6704 return;
6705
6706 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6707 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6708 nlmsg_free(msg);
6709 return;
6710 }
6711
6712 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6713 nl80211_scan_mcgrp.id, GFP_KERNEL);
6714}
6715
6716void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6717 struct net_device *netdev, u32 cmd)
6718{
6719 struct sk_buff *msg;
6720
6721 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6722 if (!msg)
6723 return;
6724
6725 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6726 nlmsg_free(msg);
6727 return;
6728 }
6729
6730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6731 nl80211_scan_mcgrp.id, GFP_KERNEL);
6732}
6733
73d54c9e
LR		 6734/*
6735 * This can happen on global regulatory changes or device specific settings
6736 * based on custom world regulatory domains.
6737 */
6738void nl80211_send_reg_change_event(struct regulatory_request *request)
6739{
6740 struct sk_buff *msg;
6741 void *hdr;
6742
fd2120ca 6743 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6744 if (!msg)
6745 return;
6746
6747 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6748 if (!hdr) {
6749 nlmsg_free(msg);
6750 return;
6751 }
6752
6753 /* Userspace can always count this one always being set */
6754 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6755
6756 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6757 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6758 NL80211_REGDOM_TYPE_WORLD);
6759 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6760 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6761 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6762 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6763 request->intersect)
6764 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6765 NL80211_REGDOM_TYPE_INTERSECTION);
6766 else {
6767 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6768 NL80211_REGDOM_TYPE_COUNTRY);
6769 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6770 }
6771
6772 if (wiphy_idx_valid(request->wiphy_idx))
6773 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6774
3b7b72ee 6775 genlmsg_end(msg, hdr);
73d54c9e 6776
bc43b28c 6777 rcu_read_lock();
463d0183 6778 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6779 GFP_ATOMIC);
6780 rcu_read_unlock();
73d54c9e
LR		 6781
6782 return;
6783
6784nla_put_failure:
6785 genlmsg_cancel(msg, hdr);
6786 nlmsg_free(msg);
6787}
6788
6039f6d2
JM		 6789static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6790 struct net_device *netdev,
6791 const u8 *buf, size_t len,
e6d6e342 6792 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6793{
6794 struct sk_buff *msg;
6795 void *hdr;
6796
e6d6e342 6797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6798 if (!msg)
6799 return;
6800
6801 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6802 if (!hdr) {
6803 nlmsg_free(msg);
6804 return;
6805 }
6806
6807 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6808 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6809 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6810
3b7b72ee 6811 genlmsg_end(msg, hdr);
6039f6d2 6812
463d0183
JB		 6813 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6814 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6815 return;
6816
6817 nla_put_failure:
6818 genlmsg_cancel(msg, hdr);
6819 nlmsg_free(msg);
6820}
6821
6822void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6823 struct net_device *netdev, const u8 *buf,
6824 size_t len, gfp_t gfp)
6039f6d2
JM		 6825{
6826 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6827 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6828}
6829
6830void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6831 struct net_device *netdev, const u8 *buf,
e6d6e342 6832 size_t len, gfp_t gfp)
6039f6d2 6833{
e6d6e342
JB		 6834 nl80211_send_mlme_event(rdev, netdev, buf, len,
6835 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6836}
6837
53b46b84 6838void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6839 struct net_device *netdev, const u8 *buf,
6840 size_t len, gfp_t gfp)
6039f6d2
JM		 6841{
6842 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6843 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6844}
6845
53b46b84
JM		 6846void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6847 struct net_device *netdev, const u8 *buf,
e6d6e342 6848 size_t len, gfp_t gfp)
6039f6d2
JM		 6849{
6850 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6851 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6852}
6853
cf4e594e
JM		 6854void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6855 struct net_device *netdev, const u8 *buf,
6856 size_t len, gfp_t gfp)
6857{
6858 nl80211_send_mlme_event(rdev, netdev, buf, len,
6859 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6860}
6861
6862void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6863 struct net_device *netdev, const u8 *buf,
6864 size_t len, gfp_t gfp)
6865{
6866 nl80211_send_mlme_event(rdev, netdev, buf, len,
6867 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6868}
6869
1b06bb40
LR		 6870static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6871 struct net_device *netdev, int cmd,
e6d6e342 6872 const u8 *addr, gfp_t gfp)
1965c853
JM		 6873{
6874 struct sk_buff *msg;
6875 void *hdr;
6876
e6d6e342 6877 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6878 if (!msg)
6879 return;
6880
6881 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6882 if (!hdr) {
6883 nlmsg_free(msg);
6884 return;
6885 }
6886
6887 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6888 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6889 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6890 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6891
3b7b72ee 6892 genlmsg_end(msg, hdr);
1965c853 6893
463d0183
JB		 6894 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6895 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6896 return;
6897
6898 nla_put_failure:
6899 genlmsg_cancel(msg, hdr);
6900 nlmsg_free(msg);
6901}
6902
6903void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6904 struct net_device *netdev, const u8 *addr,
6905 gfp_t gfp)
1965c853
JM		 6906{
6907 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6908 addr, gfp);
1965c853
JM		 6909}
6910
6911void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6912 struct net_device *netdev, const u8 *addr,
6913 gfp_t gfp)
1965c853 6914{
e6d6e342
JB		 6915 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6916 addr, gfp);
1965c853
JM		 6917}
6918
b23aa676
SO		 6919void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6920 struct net_device *netdev, const u8 *bssid,
6921 const u8 *req_ie, size_t req_ie_len,
6922 const u8 *resp_ie, size_t resp_ie_len,
6923 u16 status, gfp_t gfp)
6924{
6925 struct sk_buff *msg;
6926 void *hdr;
6927
6928 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6929 if (!msg)
6930 return;
6931
6932 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6933 if (!hdr) {
6934 nlmsg_free(msg);
6935 return;
6936 }
6937
6938 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6939 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6940 if (bssid)
6941 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6942 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6943 if (req_ie)
6944 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6945 if (resp_ie)
6946 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6947
3b7b72ee 6948 genlmsg_end(msg, hdr);
b23aa676 6949
463d0183
JB		 6950 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6951 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6952 return;
6953
6954 nla_put_failure:
6955 genlmsg_cancel(msg, hdr);
6956 nlmsg_free(msg);
6957
6958}
6959
6960void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6961 struct net_device *netdev, const u8 *bssid,
6962 const u8 *req_ie, size_t req_ie_len,
6963 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6964{
6965 struct sk_buff *msg;
6966 void *hdr;
6967
6968 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6969 if (!msg)
6970 return;
6971
6972 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6973 if (!hdr) {
6974 nlmsg_free(msg);
6975 return;
6976 }
6977
6978 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6979 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6980 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6981 if (req_ie)
6982 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6983 if (resp_ie)
6984 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6985
3b7b72ee 6986 genlmsg_end(msg, hdr);
b23aa676 6987
463d0183
JB		 6988 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6989 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6990 return;
6991
6992 nla_put_failure:
6993 genlmsg_cancel(msg, hdr);
6994 nlmsg_free(msg);
6995
6996}
6997
6998void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6999 struct net_device *netdev, u16 reason,
667503dd 7000 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7001{
7002 struct sk_buff *msg;
7003 void *hdr;
7004
667503dd 7005 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7006 if (!msg)
7007 return;
7008
7009 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7010 if (!hdr) {
7011 nlmsg_free(msg);
7012 return;
7013 }
7014
7015 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7016 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7017 if (from_ap && reason)
7018 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7019 if (from_ap)
7020 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7021 if (ie)
7022 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7023
3b7b72ee 7024 genlmsg_end(msg, hdr);
b23aa676 7025
463d0183
JB		 7026 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7027 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7028 return;
7029
7030 nla_put_failure:
7031 genlmsg_cancel(msg, hdr);
7032 nlmsg_free(msg);
7033
7034}
7035
04a773ad
JB		 7036void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7037 struct net_device *netdev, const u8 *bssid,
7038 gfp_t gfp)
7039{
7040 struct sk_buff *msg;
7041 void *hdr;
7042
fd2120ca 7043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7044 if (!msg)
7045 return;
7046
7047 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7048 if (!hdr) {
7049 nlmsg_free(msg);
7050 return;
7051 }
7052
7053 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7054 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7055 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7056
3b7b72ee 7057 genlmsg_end(msg, hdr);
04a773ad 7058
463d0183
JB		 7059 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7060 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7061 return;
7062
7063 nla_put_failure:
7064 genlmsg_cancel(msg, hdr);
7065 nlmsg_free(msg);
7066}
7067
c93b5e71
JC		 7068void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7069 struct net_device *netdev,
7070 const u8 *macaddr, const u8* ie, u8 ie_len,
7071 gfp_t gfp)
7072{
7073 struct sk_buff *msg;
7074 void *hdr;
7075
7076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7077 if (!msg)
7078 return;
7079
7080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7081 if (!hdr) {
7082 nlmsg_free(msg);
7083 return;
7084 }
7085
7086 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7087 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7088 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7089 if (ie_len && ie)
7090 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7091
3b7b72ee 7092 genlmsg_end(msg, hdr);
c93b5e71
JC		 7093
7094 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7095 nl80211_mlme_mcgrp.id, gfp);
7096 return;
7097
7098 nla_put_failure:
7099 genlmsg_cancel(msg, hdr);
7100 nlmsg_free(msg);
7101}
7102
a3b8b056
JM		 7103void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7104 struct net_device *netdev, const u8 *addr,
7105 enum nl80211_key_type key_type, int key_id,
e6d6e342 7106 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7107{
7108 struct sk_buff *msg;
7109 void *hdr;
7110
e6d6e342 7111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7112 if (!msg)
7113 return;
7114
7115 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7116 if (!hdr) {
7117 nlmsg_free(msg);
7118 return;
7119 }
7120
7121 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7122 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7123 if (addr)
7124 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7125 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7126 if (key_id != -1)
7127 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7128 if (tsc)
7129 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7130
3b7b72ee 7131 genlmsg_end(msg, hdr);
a3b8b056 7132
463d0183
JB		 7133 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7134 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7135 return;
7136
7137 nla_put_failure:
7138 genlmsg_cancel(msg, hdr);
7139 nlmsg_free(msg);
7140}
7141
6bad8766
LR		 7142void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7143 struct ieee80211_channel *channel_before,
7144 struct ieee80211_channel *channel_after)
7145{
7146 struct sk_buff *msg;
7147 void *hdr;
7148 struct nlattr *nl_freq;
7149
fd2120ca 7150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7151 if (!msg)
7152 return;
7153
7154 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7155 if (!hdr) {
7156 nlmsg_free(msg);
7157 return;
7158 }
7159
7160 /*
7161 * Since we are applying the beacon hint to a wiphy we know its
7162 * wiphy_idx is valid
7163 */
7164 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7165
7166 /* Before */
7167 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7168 if (!nl_freq)
7169 goto nla_put_failure;
7170 if (nl80211_msg_put_channel(msg, channel_before))
7171 goto nla_put_failure;
7172 nla_nest_end(msg, nl_freq);
7173
7174 /* After */
7175 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7176 if (!nl_freq)
7177 goto nla_put_failure;
7178 if (nl80211_msg_put_channel(msg, channel_after))
7179 goto nla_put_failure;
7180 nla_nest_end(msg, nl_freq);
7181
3b7b72ee 7182 genlmsg_end(msg, hdr);
6bad8766 7183
463d0183
JB		 7184 rcu_read_lock();
7185 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7186 GFP_ATOMIC);
7187 rcu_read_unlock();
6bad8766
LR		 7188
7189 return;
7190
7191nla_put_failure:
7192 genlmsg_cancel(msg, hdr);
7193 nlmsg_free(msg);
7194}
7195
9588bbd5
JM		 7196static void nl80211_send_remain_on_chan_event(
7197 int cmd, struct cfg80211_registered_device *rdev,
7198 struct net_device *netdev, u64 cookie,
7199 struct ieee80211_channel *chan,
7200 enum nl80211_channel_type channel_type,
7201 unsigned int duration, gfp_t gfp)
7202{
7203 struct sk_buff *msg;
7204 void *hdr;
7205
7206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7207 if (!msg)
7208 return;
7209
7210 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7211 if (!hdr) {
7212 nlmsg_free(msg);
7213 return;
7214 }
7215
7216 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7217 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7218 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7219 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7220 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7221
7222 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7223 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7224
3b7b72ee 7225 genlmsg_end(msg, hdr);
9588bbd5
JM		 7226
7227 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7228 nl80211_mlme_mcgrp.id, gfp);
7229 return;
7230
7231 nla_put_failure:
7232 genlmsg_cancel(msg, hdr);
7233 nlmsg_free(msg);
7234}
7235
7236void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7237 struct net_device *netdev, u64 cookie,
7238 struct ieee80211_channel *chan,
7239 enum nl80211_channel_type channel_type,
7240 unsigned int duration, gfp_t gfp)
7241{
7242 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7243 rdev, netdev, cookie, chan,
7244 channel_type, duration, gfp);
7245}
7246
7247void nl80211_send_remain_on_channel_cancel(
7248 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7249 u64 cookie, struct ieee80211_channel *chan,
7250 enum nl80211_channel_type channel_type, gfp_t gfp)
7251{
7252 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7253 rdev, netdev, cookie, chan,
7254 channel_type, 0, gfp);
7255}
7256
98b62183
JB		 7257void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7258 struct net_device *dev, const u8 *mac_addr,
7259 struct station_info *sinfo, gfp_t gfp)
7260{
7261 struct sk_buff *msg;
7262
7263 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7264 if (!msg)
7265 return;
7266
7267 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7268 nlmsg_free(msg);
7269 return;
7270 }
7271
7272 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7273 nl80211_mlme_mcgrp.id, gfp);
7274}
7275
ec15e68b
JM		 7276void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7277 struct net_device *dev, const u8 *mac_addr,
7278 gfp_t gfp)
7279{
7280 struct sk_buff *msg;
7281 void *hdr;
7282
7283 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7284 if (!msg)
7285 return;
7286
7287 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7288 if (!hdr) {
7289 nlmsg_free(msg);
7290 return;
7291 }
7292
7293 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7294 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7295
3b7b72ee 7296 genlmsg_end(msg, hdr);
ec15e68b
JM		 7297
7298 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7299 nl80211_mlme_mcgrp.id, gfp);
7300 return;
7301
7302 nla_put_failure:
7303 genlmsg_cancel(msg, hdr);
7304 nlmsg_free(msg);
7305}
7306
b92ab5d8
JB		 7307static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7308 const u8 *addr, gfp_t gfp)
28946da7
JB		 7309{
7310 struct wireless_dev *wdev = dev->ieee80211_ptr;
7311 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7312 struct sk_buff *msg;
7313 void *hdr;
7314 int err;
7315 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7316
7317 if (!nlpid)
7318 return false;
7319
7320 msg = nlmsg_new(100, gfp);
7321 if (!msg)
7322 return true;
7323
b92ab5d8 7324 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7325 if (!hdr) {
7326 nlmsg_free(msg);
7327 return true;
7328 }
7329
7330 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7331 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7332 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7333
7334 err = genlmsg_end(msg, hdr);
7335 if (err < 0) {
7336 nlmsg_free(msg);
7337 return true;
7338 }
7339
7340 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7341 return true;
7342
7343 nla_put_failure:
7344 genlmsg_cancel(msg, hdr);
7345 nlmsg_free(msg);
7346 return true;
7347}
7348
b92ab5d8
JB		 7349bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7350{
7351 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7352 addr, gfp);
7353}
7354
7355bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7356 const u8 *addr, gfp_t gfp)
7357{
7358 return __nl80211_unexpected_frame(dev,
7359 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7360 addr, gfp);
7361}
7362
2e161f78
JB		 7363int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7364 struct net_device *netdev, u32 nlpid,
7365 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7366{
7367 struct sk_buff *msg;
7368 void *hdr;
026331c4
JM		 7369
7370 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7371 if (!msg)
7372 return -ENOMEM;
7373
2e161f78 7374 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7375 if (!hdr) {
7376 nlmsg_free(msg);
7377 return -ENOMEM;
7378 }
7379
7380 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7381 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7382 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7383 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7384
3b7b72ee 7385 genlmsg_end(msg, hdr);
026331c4 7386
3b7b72ee 7387 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7388
7389 nla_put_failure:
7390 genlmsg_cancel(msg, hdr);
7391 nlmsg_free(msg);
7392 return -ENOBUFS;
7393}
7394
2e161f78
JB		 7395void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7396 struct net_device *netdev, u64 cookie,
7397 const u8 *buf, size_t len, bool ack,
7398 gfp_t gfp)
026331c4
JM		 7399{
7400 struct sk_buff *msg;
7401 void *hdr;
7402
7403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7404 if (!msg)
7405 return;
7406
2e161f78 7407 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7408 if (!hdr) {
7409 nlmsg_free(msg);
7410 return;
7411 }
7412
7413 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7414 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7415 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7416 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7417 if (ack)
7418 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7419
3b7b72ee 7420 genlmsg_end(msg, hdr);
026331c4
JM		 7421
7422 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7423 return;
7424
7425 nla_put_failure:
7426 genlmsg_cancel(msg, hdr);
7427 nlmsg_free(msg);
7428}
7429
d6dc1a38
JO		 7430void
7431nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7432 struct net_device *netdev,
7433 enum nl80211_cqm_rssi_threshold_event rssi_event,
7434 gfp_t gfp)
7435{
7436 struct sk_buff *msg;
7437 struct nlattr *pinfoattr;
7438 void *hdr;
7439
7440 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7441 if (!msg)
7442 return;
7443
7444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7445 if (!hdr) {
7446 nlmsg_free(msg);
7447 return;
7448 }
7449
7450 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7451 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7452
7453 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7454 if (!pinfoattr)
7455 goto nla_put_failure;
7456
7457 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7458 rssi_event);
7459
7460 nla_nest_end(msg, pinfoattr);
7461
3b7b72ee 7462 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7463
7464 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7465 nl80211_mlme_mcgrp.id, gfp);
7466 return;
7467
7468 nla_put_failure:
7469 genlmsg_cancel(msg, hdr);
7470 nlmsg_free(msg);
7471}
7472
e5497d76
JB		 7473void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7474 struct net_device *netdev, const u8 *bssid,
7475 const u8 *replay_ctr, gfp_t gfp)
7476{
7477 struct sk_buff *msg;
7478 struct nlattr *rekey_attr;
7479 void *hdr;
7480
7481 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7482 if (!msg)
7483 return;
7484
7485 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7486 if (!hdr) {
7487 nlmsg_free(msg);
7488 return;
7489 }
7490
7491 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7492 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7493 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7494
7495 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7496 if (!rekey_attr)
7497 goto nla_put_failure;
7498
7499 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7500 NL80211_REPLAY_CTR_LEN, replay_ctr);
7501
7502 nla_nest_end(msg, rekey_attr);
7503
3b7b72ee 7504 genlmsg_end(msg, hdr);
e5497d76
JB		 7505
7506 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7507 nl80211_mlme_mcgrp.id, gfp);
7508 return;
7509
7510 nla_put_failure:
7511 genlmsg_cancel(msg, hdr);
7512 nlmsg_free(msg);
7513}
7514
c9df56b4
JM		 7515void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7516 struct net_device *netdev, int index,
7517 const u8 *bssid, bool preauth, gfp_t gfp)
7518{
7519 struct sk_buff *msg;
7520 struct nlattr *attr;
7521 void *hdr;
7522
7523 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7524 if (!msg)
7525 return;
7526
7527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7528 if (!hdr) {
7529 nlmsg_free(msg);
7530 return;
7531 }
7532
7533 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7534 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7535
7536 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7537 if (!attr)
7538 goto nla_put_failure;
7539
7540 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7541 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7542 if (preauth)
7543 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7544
7545 nla_nest_end(msg, attr);
7546
3b7b72ee 7547 genlmsg_end(msg, hdr);
c9df56b4
JM		 7548
7549 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7550 nl80211_mlme_mcgrp.id, gfp);
7551 return;
7552
7553 nla_put_failure:
7554 genlmsg_cancel(msg, hdr);
7555 nlmsg_free(msg);
7556}
7557
c063dbf5
JB		 7558void
7559nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7560 struct net_device *netdev, const u8 *peer,
7561 u32 num_packets, gfp_t gfp)
7562{
7563 struct sk_buff *msg;
7564 struct nlattr *pinfoattr;
7565 void *hdr;
7566
7567 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7568 if (!msg)
7569 return;
7570
7571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7572 if (!hdr) {
7573 nlmsg_free(msg);
7574 return;
7575 }
7576
7577 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7578 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7579 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7580
7581 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7582 if (!pinfoattr)
7583 goto nla_put_failure;
7584
7585 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7586
7587 nla_nest_end(msg, pinfoattr);
7588
3b7b72ee 7589 genlmsg_end(msg, hdr);
c063dbf5
JB		 7590
7591 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7592 nl80211_mlme_mcgrp.id, gfp);
7593 return;
7594
7595 nla_put_failure:
7596 genlmsg_cancel(msg, hdr);
7597 nlmsg_free(msg);
7598}
7599
7f6cf311
JB		 7600void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7601 u64 cookie, bool acked, gfp_t gfp)
7602{
7603 struct wireless_dev *wdev = dev->ieee80211_ptr;
7604 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7605 struct sk_buff *msg;
7606 void *hdr;
7607 int err;
7608
7609 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7610 if (!msg)
7611 return;
7612
7613 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7614 if (!hdr) {
7615 nlmsg_free(msg);
7616 return;
7617 }
7618
7619 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7620 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7621 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7622 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7623 if (acked)
7624 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7625
7626 err = genlmsg_end(msg, hdr);
7627 if (err < 0) {
7628 nlmsg_free(msg);
7629 return;
7630 }
7631
7632 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7633 nl80211_mlme_mcgrp.id, gfp);
7634 return;
7635
7636 nla_put_failure:
7637 genlmsg_cancel(msg, hdr);
7638 nlmsg_free(msg);
7639}
7640EXPORT_SYMBOL(cfg80211_probe_status);
7641
5e760230
JB		 7642void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7643 const u8 *frame, size_t len,
7644 int freq, gfp_t gfp)
7645{
7646 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7647 struct sk_buff *msg;
7648 void *hdr;
7649 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7650
7651 if (!nlpid)
7652 return;
7653
7654 msg = nlmsg_new(len + 100, gfp);
7655 if (!msg)
7656 return;
7657
7658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7659 if (!hdr) {
7660 nlmsg_free(msg);
7661 return;
7662 }
7663
7664 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7665 if (freq)
7666 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7667 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7668
7669 genlmsg_end(msg, hdr);
7670
7671 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7672 return;
7673
7674 nla_put_failure:
7675 genlmsg_cancel(msg, hdr);
7676 nlmsg_free(msg);
7677}
7678EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7679
026331c4
JM		 7680static int nl80211_netlink_notify(struct notifier_block * nb,
7681 unsigned long state,
7682 void *_notify)
7683{
7684 struct netlink_notify *notify = _notify;
7685 struct cfg80211_registered_device *rdev;
7686 struct wireless_dev *wdev;
7687
7688 if (state != NETLINK_URELEASE)
7689 return NOTIFY_DONE;
7690
7691 rcu_read_lock();
7692
5e760230 7693 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7694 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7695 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7696 if (rdev->ap_beacons_nlpid == notify->pid)
7697 rdev->ap_beacons_nlpid = 0;
7698 }
026331c4
JM		 7699
7700 rcu_read_unlock();
7701
7702 return NOTIFY_DONE;
7703}
7704
7705static struct notifier_block nl80211_netlink_notifier = {
7706 .notifier_call = nl80211_netlink_notify,
7707};
7708
55682965
JB		 7709/* initialisation/exit functions */
7710
7711int nl80211_init(void)
7712{
0d63cbb5 7713 int err;
55682965 7714
0d63cbb5
MM		 7715 err = genl_register_family_with_ops(&nl80211_fam,
7716 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7717 if (err)
7718 return err;
7719
55682965
JB		 7720 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7721 if (err)
7722 goto err_out;
7723
2a519311
JB		 7724 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7725 if (err)
7726 goto err_out;
7727
73d54c9e
LR		 7728 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7729 if (err)
7730 goto err_out;
7731
6039f6d2
JM		 7732 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7733 if (err)
7734 goto err_out;
7735
aff89a9b
JB		 7736#ifdef CONFIG_NL80211_TESTMODE
7737 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7738 if (err)
7739 goto err_out;
7740#endif
7741
026331c4
JM		 7742 err = netlink_register_notifier(&nl80211_netlink_notifier);
7743 if (err)
7744 goto err_out;
7745
55682965
JB		 7746 return 0;
7747 err_out:
7748 genl_unregister_family(&nl80211_fam);
7749 return err;
7750}
7751
7752void nl80211_exit(void)
7753{
026331c4 7754 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7755 genl_unregister_family(&nl80211_fam);
7756}
Linux kernel - Deliverables
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