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cfg80211/nl80211: clarify TX queue API
[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 */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
73/* policy for the attributes */
b54452b0 74static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 77 .len = 20-1 },
31888487 78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 86
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 90
e007b857
EP		 91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 93
b9454e83 94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 102
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 120
b2e1b302
LR		 121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
123
9f1ba906
JM		 124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
50b12f59 129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 130
24bdd9f4 131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 133
6c739419 134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 135
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 141
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
151 },
3f77316c 152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
205 },
1d9d9213 206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
1b658f11 207 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
4486ea98 208 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
55682965
JB		 209};
210
e31b8213 211/* policy for the key attributes */
b54452b0 212static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 213 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 214 [NL80211_KEY_IDX] = { .type = NLA_U8 },
215 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 216 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 217 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
218 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 219 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 220 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
221};
222
223/* policy for the key default flags */
224static const struct nla_policy
225nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
226 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
227 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 228};
229
ff1b6e69
JB		 230/* policy for WoWLAN attributes */
231static const struct nla_policy
232nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
233 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
235 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 237 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
239 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
240 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 241};
242
e5497d76
JB		 243/* policy for GTK rekey offload attributes */
244static const struct nla_policy
245nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
246 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
247 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
248 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
249};
250
a1f1c21c
LC		 251static const struct nla_policy
252nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
253 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
254 .len = IEEE80211_MAX_SSID_LEN },
255};
256
a043897a
HS		 257/* ifidx get helper */
258static int nl80211_get_ifidx(struct netlink_callback *cb)
259{
260 int res;
261
262 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
263 nl80211_fam.attrbuf, nl80211_fam.maxattr,
264 nl80211_policy);
265 if (res)
266 return res;
267
268 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
269 return -EINVAL;
270
271 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
272 if (!res)
273 return -EINVAL;
274 return res;
275}
276
67748893
JB		 277static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
278 struct netlink_callback *cb,
279 struct cfg80211_registered_device **rdev,
280 struct net_device **dev)
281{
282 int ifidx = cb->args[0];
283 int err;
284
285 if (!ifidx)
286 ifidx = nl80211_get_ifidx(cb);
287 if (ifidx < 0)
288 return ifidx;
289
290 cb->args[0] = ifidx;
291
292 rtnl_lock();
293
294 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
295 if (!*dev) {
296 err = -ENODEV;
297 goto out_rtnl;
298 }
299
300 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 301 if (IS_ERR(*rdev)) {
302 err = PTR_ERR(*rdev);
67748893
JB		 303 goto out_rtnl;
304 }
305
306 return 0;
307 out_rtnl:
308 rtnl_unlock();
309 return err;
310}
311
312static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
313{
314 cfg80211_unlock_rdev(rdev);
315 rtnl_unlock();
316}
317
f4a11bb0
JB		 318/* IE validation */
319static bool is_valid_ie_attr(const struct nlattr *attr)
320{
321 const u8 *pos;
322 int len;
323
324 if (!attr)
325 return true;
326
327 pos = nla_data(attr);
328 len = nla_len(attr);
329
330 while (len) {
331 u8 elemlen;
332
333 if (len < 2)
334 return false;
335 len -= 2;
336
337 elemlen = pos[1];
338 if (elemlen > len)
339 return false;
340
341 len -= elemlen;
342 pos += 2 + elemlen;
343 }
344
345 return true;
346}
347
55682965
JB		 348/* message building helper */
349static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
350 int flags, u8 cmd)
351{
352 /* since there is no private header just add the generic one */
353 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
354}
355
5dab3b8a
LR		 356static int nl80211_msg_put_channel(struct sk_buff *msg,
357 struct ieee80211_channel *chan)
358{
359 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
360 chan->center_freq);
361
362 if (chan->flags & IEEE80211_CHAN_DISABLED)
363 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
364 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
365 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
366 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
367 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
368 if (chan->flags & IEEE80211_CHAN_RADAR)
369 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
370
371 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
372 DBM_TO_MBM(chan->max_power));
373
374 return 0;
375
376 nla_put_failure:
377 return -ENOBUFS;
378}
379
55682965
JB		 380/* netlink command implementations */
381
b9454e83
JB		 382struct key_parse {
383 struct key_params p;
384 int idx;
e31b8213 385 int type;
b9454e83 386 bool def, defmgmt;
dbd2fd65 387 bool def_uni, def_multi;
b9454e83
JB		 388};
389
390static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
391{
392 struct nlattr *tb[NL80211_KEY_MAX + 1];
393 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
394 nl80211_key_policy);
395 if (err)
396 return err;
397
398 k->def = !!tb[NL80211_KEY_DEFAULT];
399 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
400
dbd2fd65
JB		 401 if (k->def) {
402 k->def_uni = true;
403 k->def_multi = true;
404 }
405 if (k->defmgmt)
406 k->def_multi = true;
407
b9454e83
JB		 408 if (tb[NL80211_KEY_IDX])
409 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
410
411 if (tb[NL80211_KEY_DATA]) {
412 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
413 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
414 }
415
416 if (tb[NL80211_KEY_SEQ]) {
417 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
418 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
419 }
420
421 if (tb[NL80211_KEY_CIPHER])
422 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
423
e31b8213
JB		 424 if (tb[NL80211_KEY_TYPE]) {
425 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
426 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
427 return -EINVAL;
428 }
429
dbd2fd65
JB		 430 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
431 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 432 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
433 tb[NL80211_KEY_DEFAULT_TYPES],
434 nl80211_key_default_policy);
dbd2fd65
JB		 435 if (err)
436 return err;
437
438 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
439 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
440 }
441
b9454e83
JB		 442 return 0;
443}
444
445static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
446{
447 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
448 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
449 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
450 }
451
452 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
453 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
454 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
455 }
456
457 if (info->attrs[NL80211_ATTR_KEY_IDX])
458 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
459
460 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
461 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
462
463 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
464 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
465
dbd2fd65
JB		 466 if (k->def) {
467 k->def_uni = true;
468 k->def_multi = true;
469 }
470 if (k->defmgmt)
471 k->def_multi = true;
472
e31b8213
JB		 473 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
474 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
475 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
476 return -EINVAL;
477 }
478
dbd2fd65
JB		 479 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
480 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
481 int err = nla_parse_nested(
482 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
483 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
484 nl80211_key_default_policy);
485 if (err)
486 return err;
487
488 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
489 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
490 }
491
b9454e83
JB		 492 return 0;
493}
494
495static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
496{
497 int err;
498
499 memset(k, 0, sizeof(*k));
500 k->idx = -1;
e31b8213 501 k->type = -1;
b9454e83
JB		 502
503 if (info->attrs[NL80211_ATTR_KEY])
504 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
505 else
506 err = nl80211_parse_key_old(info, k);
507
508 if (err)
509 return err;
510
511 if (k->def && k->defmgmt)
512 return -EINVAL;
513
dbd2fd65
JB		 514 if (k->defmgmt) {
515 if (k->def_uni || !k->def_multi)
516 return -EINVAL;
517 }
518
b9454e83
JB		 519 if (k->idx != -1) {
520 if (k->defmgmt) {
521 if (k->idx < 4 || k->idx > 5)
522 return -EINVAL;
523 } else if (k->def) {
524 if (k->idx < 0 || k->idx > 3)
525 return -EINVAL;
526 } else {
527 if (k->idx < 0 || k->idx > 5)
528 return -EINVAL;
529 }
530 }
531
532 return 0;
533}
534
fffd0934
JB		 535static struct cfg80211_cached_keys *
536nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
537 struct nlattr *keys)
538{
539 struct key_parse parse;
540 struct nlattr *key;
541 struct cfg80211_cached_keys *result;
542 int rem, err, def = 0;
543
544 result = kzalloc(sizeof(*result), GFP_KERNEL);
545 if (!result)
546 return ERR_PTR(-ENOMEM);
547
548 result->def = -1;
549 result->defmgmt = -1;
550
551 nla_for_each_nested(key, keys, rem) {
552 memset(&parse, 0, sizeof(parse));
553 parse.idx = -1;
554
555 err = nl80211_parse_key_new(key, &parse);
556 if (err)
557 goto error;
558 err = -EINVAL;
559 if (!parse.p.key)
560 goto error;
561 if (parse.idx < 0 || parse.idx > 4)
562 goto error;
563 if (parse.def) {
564 if (def)
565 goto error;
566 def = 1;
567 result->def = parse.idx;
dbd2fd65
JB		 568 if (!parse.def_uni || !parse.def_multi)
569 goto error;
fffd0934
JB		 570 } else if (parse.defmgmt)
571 goto error;
572 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 573 parse.idx, false, NULL);
fffd0934
JB		 574 if (err)
575 goto error;
576 result->params[parse.idx].cipher = parse.p.cipher;
577 result->params[parse.idx].key_len = parse.p.key_len;
578 result->params[parse.idx].key = result->data[parse.idx];
579 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
580 }
581
582 return result;
583 error:
584 kfree(result);
585 return ERR_PTR(err);
586}
587
588static int nl80211_key_allowed(struct wireless_dev *wdev)
589{
590 ASSERT_WDEV_LOCK(wdev);
591
fffd0934
JB		 592 switch (wdev->iftype) {
593 case NL80211_IFTYPE_AP:
594 case NL80211_IFTYPE_AP_VLAN:
074ac8df 595 case NL80211_IFTYPE_P2P_GO:
ff973af7 596 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 597 break;
598 case NL80211_IFTYPE_ADHOC:
599 if (!wdev->current_bss)
600 return -ENOLINK;
601 break;
602 case NL80211_IFTYPE_STATION:
074ac8df 603 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 604 if (wdev->sme_state != CFG80211_SME_CONNECTED)
605 return -ENOLINK;
606 break;
607 default:
608 return -EINVAL;
609 }
610
611 return 0;
612}
613
7527a782
JB		 614static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
615{
616 struct nlattr *nl_modes = nla_nest_start(msg, attr);
617 int i;
618
619 if (!nl_modes)
620 goto nla_put_failure;
621
622 i = 0;
623 while (ifmodes) {
624 if (ifmodes & 1)
625 NLA_PUT_FLAG(msg, i);
626 ifmodes >>= 1;
627 i++;
628 }
629
630 nla_nest_end(msg, nl_modes);
631 return 0;
632
633nla_put_failure:
634 return -ENOBUFS;
635}
636
637static int nl80211_put_iface_combinations(struct wiphy *wiphy,
638 struct sk_buff *msg)
639{
640 struct nlattr *nl_combis;
641 int i, j;
642
643 nl_combis = nla_nest_start(msg,
644 NL80211_ATTR_INTERFACE_COMBINATIONS);
645 if (!nl_combis)
646 goto nla_put_failure;
647
648 for (i = 0; i < wiphy->n_iface_combinations; i++) {
649 const struct ieee80211_iface_combination *c;
650 struct nlattr *nl_combi, *nl_limits;
651
652 c = &wiphy->iface_combinations[i];
653
654 nl_combi = nla_nest_start(msg, i + 1);
655 if (!nl_combi)
656 goto nla_put_failure;
657
658 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
659 if (!nl_limits)
660 goto nla_put_failure;
661
662 for (j = 0; j < c->n_limits; j++) {
663 struct nlattr *nl_limit;
664
665 nl_limit = nla_nest_start(msg, j + 1);
666 if (!nl_limit)
667 goto nla_put_failure;
668 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
669 c->limits[j].max);
670 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
671 c->limits[j].types))
672 goto nla_put_failure;
673 nla_nest_end(msg, nl_limit);
674 }
675
676 nla_nest_end(msg, nl_limits);
677
678 if (c->beacon_int_infra_match)
679 NLA_PUT_FLAG(msg,
680 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
681 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
682 c->num_different_channels);
683 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
684 c->max_interfaces);
685
686 nla_nest_end(msg, nl_combi);
687 }
688
689 nla_nest_end(msg, nl_combis);
690
691 return 0;
692nla_put_failure:
693 return -ENOBUFS;
694}
695
55682965
JB		 696static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
697 struct cfg80211_registered_device *dev)
698{
699 void *hdr;
ee688b00
JB		 700 struct nlattr *nl_bands, *nl_band;
701 struct nlattr *nl_freqs, *nl_freq;
702 struct nlattr *nl_rates, *nl_rate;
8fdc621d 703 struct nlattr *nl_cmds;
ee688b00
JB		 704 enum ieee80211_band band;
705 struct ieee80211_channel *chan;
706 struct ieee80211_rate *rate;
707 int i;
2e161f78
JB		 708 const struct ieee80211_txrx_stypes *mgmt_stypes =
709 dev->wiphy.mgmt_stypes;
55682965
JB		 710
711 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
712 if (!hdr)
713 return -1;
714
b5850a7a 715 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 716 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 717
f5ea9120
JB		 718 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
719 cfg80211_rdev_list_generation);
720
b9a5f8ca
JM		 721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
722 dev->wiphy.retry_short);
723 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
724 dev->wiphy.retry_long);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
726 dev->wiphy.frag_threshold);
727 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
728 dev->wiphy.rts_threshold);
81077e82
LT		 729 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
730 dev->wiphy.coverage_class);
2a519311
JB		 731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
732 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 733 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
734 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 735 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
736 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 737 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
738 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 739 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
740 dev->wiphy.max_match_sets);
ee688b00 741
e31b8213
JB		 742 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 744 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 746 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 748 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
749 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 750 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
751 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
752 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
753 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 754
25e47c18
JB		 755 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
756 sizeof(u32) * dev->wiphy.n_cipher_suites,
757 dev->wiphy.cipher_suites);
758
67fbb16b
SO		 759 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
760 dev->wiphy.max_num_pmkids);
761
c0692b8f
JB		 762 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
763 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
764
39fd5de4
BR		 765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
766 dev->wiphy.available_antennas_tx);
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
768 dev->wiphy.available_antennas_rx);
769
87bbbe22
AN		 770 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
771 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
772 dev->wiphy.probe_resp_offload);
773
7f531e03
BR		 774 if ((dev->wiphy.available_antennas_tx ||
775 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 776 u32 tx_ant = 0, rx_ant = 0;
777 int res;
778 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
779 if (!res) {
780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
781 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
782 }
783 }
784
7527a782
JB		 785 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
786 dev->wiphy.interface_modes))
f59ac048
LR		 787 goto nla_put_failure;
788
ee688b00
JB		 789 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
790 if (!nl_bands)
791 goto nla_put_failure;
792
793 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
794 if (!dev->wiphy.bands[band])
795 continue;
796
797 nl_band = nla_nest_start(msg, band);
798 if (!nl_band)
799 goto nla_put_failure;
800
d51626df
JB		 801 /* add HT info */
802 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
803 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
804 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
805 &dev->wiphy.bands[band]->ht_cap.mcs);
806 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
807 dev->wiphy.bands[band]->ht_cap.cap);
808 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
809 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
810 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
811 dev->wiphy.bands[band]->ht_cap.ampdu_density);
812 }
813
ee688b00
JB		 814 /* add frequencies */
815 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
816 if (!nl_freqs)
817 goto nla_put_failure;
818
819 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
820 nl_freq = nla_nest_start(msg, i);
821 if (!nl_freq)
822 goto nla_put_failure;
823
824 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 825
826 if (nl80211_msg_put_channel(msg, chan))
827 goto nla_put_failure;
e2f367f2 828
ee688b00
JB		 829 nla_nest_end(msg, nl_freq);
830 }
831
832 nla_nest_end(msg, nl_freqs);
833
834 /* add bitrates */
835 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
836 if (!nl_rates)
837 goto nla_put_failure;
838
839 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
840 nl_rate = nla_nest_start(msg, i);
841 if (!nl_rate)
842 goto nla_put_failure;
843
844 rate = &dev->wiphy.bands[band]->bitrates[i];
845 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
846 rate->bitrate);
847 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
848 NLA_PUT_FLAG(msg,
849 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
850
851 nla_nest_end(msg, nl_rate);
852 }
853
854 nla_nest_end(msg, nl_rates);
855
856 nla_nest_end(msg, nl_band);
857 }
858 nla_nest_end(msg, nl_bands);
859
8fdc621d
JB		 860 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
861 if (!nl_cmds)
862 goto nla_put_failure;
863
864 i = 0;
865#define CMD(op, n) \
866 do { \
867 if (dev->ops->op) { \
868 i++; \
869 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
870 } \
871 } while (0)
872
873 CMD(add_virtual_intf, NEW_INTERFACE);
874 CMD(change_virtual_intf, SET_INTERFACE);
875 CMD(add_key, NEW_KEY);
8860020e 876 CMD(start_ap, START_AP);
8fdc621d
JB		 877 CMD(add_station, NEW_STATION);
878 CMD(add_mpath, NEW_MPATH);
24bdd9f4 879 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 880 CMD(change_bss, SET_BSS);
636a5d36
JM		 881 CMD(auth, AUTHENTICATE);
882 CMD(assoc, ASSOCIATE);
883 CMD(deauth, DEAUTHENTICATE);
884 CMD(disassoc, DISASSOCIATE);
04a773ad 885 CMD(join_ibss, JOIN_IBSS);
29cbe68c 886 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 887 CMD(set_pmksa, SET_PMKSA);
888 CMD(del_pmksa, DEL_PMKSA);
889 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 890 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
891 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 892 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 893 CMD(mgmt_tx, FRAME);
f7ca38df 894 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 895 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 896 i++;
897 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
898 }
f444de05 899 CMD(set_channel, SET_CHANNEL);
e8347eba 900 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 901 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
902 CMD(tdls_mgmt, TDLS_MGMT);
903 CMD(tdls_oper, TDLS_OPER);
904 }
807f8a8c
LC		 905 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
906 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 907 CMD(probe_client, PROBE_CLIENT);
1d9d9213 908 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 909 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
910 i++;
911 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
912 }
8fdc621d 913
4745fc09
KV		 914#ifdef CONFIG_NL80211_TESTMODE
915 CMD(testmode_cmd, TESTMODE);
916#endif
917
8fdc621d 918#undef CMD
b23aa676 919
6829c878 920 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 921 i++;
922 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
923 }
924
6829c878 925 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 926 i++;
927 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
928 }
929
8fdc621d
JB		 930 nla_nest_end(msg, nl_cmds);
931
7c4ef712
JB		 932 if (dev->ops->remain_on_channel &&
933 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
a293911d
JB		 934 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
935 dev->wiphy.max_remain_on_channel_duration);
936
7c4ef712 937 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
f7ca38df
JB		 938 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
939
2e161f78
JB		 940 if (mgmt_stypes) {
941 u16 stypes;
942 struct nlattr *nl_ftypes, *nl_ifs;
943 enum nl80211_iftype ift;
944
945 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
946 if (!nl_ifs)
947 goto nla_put_failure;
948
949 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
950 nl_ftypes = nla_nest_start(msg, ift);
951 if (!nl_ftypes)
952 goto nla_put_failure;
953 i = 0;
954 stypes = mgmt_stypes[ift].tx;
955 while (stypes) {
956 if (stypes & 1)
957 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
958 (i << 4) | IEEE80211_FTYPE_MGMT);
959 stypes >>= 1;
960 i++;
961 }
962 nla_nest_end(msg, nl_ftypes);
963 }
964
74b70a4e
JB		 965 nla_nest_end(msg, nl_ifs);
966
2e161f78
JB		 967 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
968 if (!nl_ifs)
969 goto nla_put_failure;
970
971 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
972 nl_ftypes = nla_nest_start(msg, ift);
973 if (!nl_ftypes)
974 goto nla_put_failure;
975 i = 0;
976 stypes = mgmt_stypes[ift].rx;
977 while (stypes) {
978 if (stypes & 1)
979 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
980 (i << 4) | IEEE80211_FTYPE_MGMT);
981 stypes >>= 1;
982 i++;
983 }
984 nla_nest_end(msg, nl_ftypes);
985 }
986 nla_nest_end(msg, nl_ifs);
987 }
988
ff1b6e69
JB		 989 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
990 struct nlattr *nl_wowlan;
991
992 nl_wowlan = nla_nest_start(msg,
993 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
994 if (!nl_wowlan)
995 goto nla_put_failure;
996
997 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
998 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
999 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
1000 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
1001 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1002 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 1003 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1004 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1005 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1006 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1007 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1008 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1009 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1010 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1011 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1012 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 1013 if (dev->wiphy.wowlan.n_patterns) {
1014 struct nl80211_wowlan_pattern_support pat = {
1015 .max_patterns = dev->wiphy.wowlan.n_patterns,
1016 .min_pattern_len =
1017 dev->wiphy.wowlan.pattern_min_len,
1018 .max_pattern_len =
1019 dev->wiphy.wowlan.pattern_max_len,
1020 };
1021 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1022 sizeof(pat), &pat);
1023 }
1024
1025 nla_nest_end(msg, nl_wowlan);
1026 }
1027
7527a782
JB		 1028 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1029 dev->wiphy.software_iftypes))
1030 goto nla_put_failure;
1031
1032 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1033 goto nla_put_failure;
1034
562a7480
JB		 1035 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1036 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1037 dev->wiphy.ap_sme_capa);
1038
1f074bd8
JB		 1039 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1040
7e7c8926
BG		 1041 if (dev->wiphy.ht_capa_mod_mask)
1042 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1043 sizeof(*dev->wiphy.ht_capa_mod_mask),
1044 dev->wiphy.ht_capa_mod_mask);
1045
55682965
JB		 1046 return genlmsg_end(msg, hdr);
1047
1048 nla_put_failure:
bc3ed28c
TG		 1049 genlmsg_cancel(msg, hdr);
1050 return -EMSGSIZE;
55682965
JB		 1051}
1052
1053static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1054{
1055 int idx = 0;
1056 int start = cb->args[0];
1057 struct cfg80211_registered_device *dev;
1058
a1794390 1059 mutex_lock(&cfg80211_mutex);
79c97e97 1060 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1061 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1062 continue;
b4637271 1063 if (++idx <= start)
55682965
JB		 1064 continue;
1065 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1066 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1067 dev) < 0) {
1068 idx--;
55682965 1069 break;
b4637271 1070 }
55682965 1071 }
a1794390 1072 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1073
1074 cb->args[0] = idx;
1075
1076 return skb->len;
1077}
1078
1079static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1080{
1081 struct sk_buff *msg;
4c476991 1082 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1083
fd2120ca 1084 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1085 if (!msg)
4c476991 1086 return -ENOMEM;
55682965 1087
4c476991
JB		 1088 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1089 nlmsg_free(msg);
1090 return -ENOBUFS;
1091 }
55682965 1092
134e6375 1093 return genlmsg_reply(msg, info);
55682965
JB		 1094}
1095
31888487
JM		 1096static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1097 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1098 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1100 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1101 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1102};
1103
1104static int parse_txq_params(struct nlattr *tb[],
1105 struct ieee80211_txq_params *txq_params)
1106{
a3304b0a 1107 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
31888487
JM		 1108 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1109 !tb[NL80211_TXQ_ATTR_AIFS])
1110 return -EINVAL;
1111
a3304b0a 1112 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
31888487
JM		 1113 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1114 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1115 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1116 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1117
a3304b0a
JB		 1118 if (txq_params->ac >= NL80211_NUM_ACS)
1119 return -EINVAL;
1120
31888487
JM		 1121 return 0;
1122}
1123
f444de05
JB		 1124static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1125{
1126 /*
1127 * You can only set the channel explicitly for AP, mesh
1128 * and WDS type interfaces; all others have their channel
1129 * managed via their respective "establish a connection"
1130 * command (connect, join, ...)
1131 *
1132 * Monitors are special as they are normally slaved to
1133 * whatever else is going on, so they behave as though
1134 * you tried setting the wiphy channel itself.
1135 */
1136 return !wdev ||
1137 wdev->iftype == NL80211_IFTYPE_AP ||
1138 wdev->iftype == NL80211_IFTYPE_WDS ||
1139 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1140 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1141 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1142}
1143
1144static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1145 struct wireless_dev *wdev,
1146 struct genl_info *info)
1147{
1148 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1149 u32 freq;
1150 int result;
1151
1152 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1153 return -EINVAL;
1154
1155 if (!nl80211_can_set_dev_channel(wdev))
1156 return -EOPNOTSUPP;
1157
1158 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1159 channel_type = nla_get_u32(info->attrs[
1160 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1161 if (channel_type != NL80211_CHAN_NO_HT &&
1162 channel_type != NL80211_CHAN_HT20 &&
1163 channel_type != NL80211_CHAN_HT40PLUS &&
1164 channel_type != NL80211_CHAN_HT40MINUS)
1165 return -EINVAL;
1166 }
1167
1168 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1169
1170 mutex_lock(&rdev->devlist_mtx);
1171 if (wdev) {
1172 wdev_lock(wdev);
1173 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1174 wdev_unlock(wdev);
1175 } else {
1176 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1177 }
1178 mutex_unlock(&rdev->devlist_mtx);
1179
1180 return result;
1181}
1182
1183static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1184{
4c476991
JB		 1185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1186 struct net_device *netdev = info->user_ptr[1];
f444de05 1187
4c476991 1188 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1189}
1190
e8347eba
BJ		 1191static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1192{
43b19952
JB		 1193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1194 struct net_device *dev = info->user_ptr[1];
1195 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1196 const u8 *bssid;
e8347eba
BJ		 1197
1198 if (!info->attrs[NL80211_ATTR_MAC])
1199 return -EINVAL;
1200
43b19952
JB		 1201 if (netif_running(dev))
1202 return -EBUSY;
e8347eba 1203
43b19952
JB		 1204 if (!rdev->ops->set_wds_peer)
1205 return -EOPNOTSUPP;
e8347eba 1206
43b19952
JB		 1207 if (wdev->iftype != NL80211_IFTYPE_WDS)
1208 return -EOPNOTSUPP;
e8347eba
BJ		 1209
1210 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1211 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1212}
1213
1214
55682965
JB		 1215static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1216{
1217 struct cfg80211_registered_device *rdev;
f444de05
JB		 1218 struct net_device *netdev = NULL;
1219 struct wireless_dev *wdev;
a1e567c8 1220 int result = 0, rem_txq_params = 0;
31888487 1221 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1222 u32 changed;
1223 u8 retry_short = 0, retry_long = 0;
1224 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1225 u8 coverage_class = 0;
55682965 1226
f444de05
JB		 1227 /*
1228 * Try to find the wiphy and netdev. Normally this
1229 * function shouldn't need the netdev, but this is
1230 * done for backward compatibility -- previously
1231 * setting the channel was done per wiphy, but now
1232 * it is per netdev. Previous userland like hostapd
1233 * also passed a netdev to set_wiphy, so that it is
1234 * possible to let that go to the right netdev!
1235 */
4bbf4d56
JB		 1236 mutex_lock(&cfg80211_mutex);
1237
f444de05
JB		 1238 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1239 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1240
1241 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1242 if (netdev && netdev->ieee80211_ptr) {
1243 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1244 mutex_lock(&rdev->mtx);
1245 } else
1246 netdev = NULL;
4bbf4d56
JB		 1247 }
1248
f444de05
JB		 1249 if (!netdev) {
1250 rdev = __cfg80211_rdev_from_info(info);
1251 if (IS_ERR(rdev)) {
1252 mutex_unlock(&cfg80211_mutex);
4c476991 1253 return PTR_ERR(rdev);
f444de05
JB		 1254 }
1255 wdev = NULL;
1256 netdev = NULL;
1257 result = 0;
1258
1259 mutex_lock(&rdev->mtx);
1260 } else if (netif_running(netdev) &&
1261 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1262 wdev = netdev->ieee80211_ptr;
1263 else
1264 wdev = NULL;
1265
1266 /*
1267 * end workaround code, by now the rdev is available
1268 * and locked, and wdev may or may not be NULL.
1269 */
4bbf4d56
JB		 1270
1271 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1272 result = cfg80211_dev_rename(
1273 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1274
1275 mutex_unlock(&cfg80211_mutex);
1276
1277 if (result)
1278 goto bad_res;
31888487
JM		 1279
1280 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1281 struct ieee80211_txq_params txq_params;
1282 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1283
1284 if (!rdev->ops->set_txq_params) {
1285 result = -EOPNOTSUPP;
1286 goto bad_res;
1287 }
1288
f70f01c2
EP		 1289 if (!netdev) {
1290 result = -EINVAL;
1291 goto bad_res;
1292 }
1293
133a3ff2
JB		 1294 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1295 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1296 result = -EINVAL;
1297 goto bad_res;
1298 }
1299
31888487
JM		 1300 nla_for_each_nested(nl_txq_params,
1301 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1302 rem_txq_params) {
1303 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1304 nla_data(nl_txq_params),
1305 nla_len(nl_txq_params),
1306 txq_params_policy);
1307 result = parse_txq_params(tb, &txq_params);
1308 if (result)
1309 goto bad_res;
1310
1311 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1312 netdev,
31888487
JM		 1313 &txq_params);
1314 if (result)
1315 goto bad_res;
1316 }
1317 }
55682965 1318
72bdcf34 1319 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1320 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1321 if (result)
1322 goto bad_res;
1323 }
1324
98d2ff8b
JO		 1325 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1326 enum nl80211_tx_power_setting type;
1327 int idx, mbm = 0;
1328
1329 if (!rdev->ops->set_tx_power) {
60ea385f 1330 result = -EOPNOTSUPP;
98d2ff8b
JO		 1331 goto bad_res;
1332 }
1333
1334 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1335 type = nla_get_u32(info->attrs[idx]);
1336
1337 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1338 (type != NL80211_TX_POWER_AUTOMATIC)) {
1339 result = -EINVAL;
1340 goto bad_res;
1341 }
1342
1343 if (type != NL80211_TX_POWER_AUTOMATIC) {
1344 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1345 mbm = nla_get_u32(info->attrs[idx]);
1346 }
1347
1348 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1349 if (result)
1350 goto bad_res;
1351 }
1352
afe0cbf8
BR		 1353 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1354 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1355 u32 tx_ant, rx_ant;
7f531e03
BR		 1356 if ((!rdev->wiphy.available_antennas_tx &&
1357 !rdev->wiphy.available_antennas_rx) ||
1358 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1359 result = -EOPNOTSUPP;
1360 goto bad_res;
1361 }
1362
1363 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1364 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1365
a7ffac95 1366 /* reject antenna configurations which don't match the
7f531e03
BR		 1367 * available antenna masks, except for the "all" mask */
1368 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1369 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1370 result = -EINVAL;
1371 goto bad_res;
1372 }
1373
7f531e03
BR		 1374 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1375 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1376
afe0cbf8
BR		 1377 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1378 if (result)
1379 goto bad_res;
1380 }
1381
b9a5f8ca
JM		 1382 changed = 0;
1383
1384 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1385 retry_short = nla_get_u8(
1386 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1387 if (retry_short == 0) {
1388 result = -EINVAL;
1389 goto bad_res;
1390 }
1391 changed |= WIPHY_PARAM_RETRY_SHORT;
1392 }
1393
1394 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1395 retry_long = nla_get_u8(
1396 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1397 if (retry_long == 0) {
1398 result = -EINVAL;
1399 goto bad_res;
1400 }
1401 changed |= WIPHY_PARAM_RETRY_LONG;
1402 }
1403
1404 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1405 frag_threshold = nla_get_u32(
1406 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1407 if (frag_threshold < 256) {
1408 result = -EINVAL;
1409 goto bad_res;
1410 }
1411 if (frag_threshold != (u32) -1) {
1412 /*
1413 * Fragments (apart from the last one) are required to
1414 * have even length. Make the fragmentation code
1415 * simpler by stripping LSB should someone try to use
1416 * odd threshold value.
1417 */
1418 frag_threshold &= ~0x1;
1419 }
1420 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1421 }
1422
1423 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1424 rts_threshold = nla_get_u32(
1425 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1426 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1427 }
1428
81077e82
LT		 1429 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1430 coverage_class = nla_get_u8(
1431 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1432 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1433 }
1434
b9a5f8ca
JM		 1435 if (changed) {
1436 u8 old_retry_short, old_retry_long;
1437 u32 old_frag_threshold, old_rts_threshold;
81077e82 1438 u8 old_coverage_class;
b9a5f8ca
JM		 1439
1440 if (!rdev->ops->set_wiphy_params) {
1441 result = -EOPNOTSUPP;
1442 goto bad_res;
1443 }
1444
1445 old_retry_short = rdev->wiphy.retry_short;
1446 old_retry_long = rdev->wiphy.retry_long;
1447 old_frag_threshold = rdev->wiphy.frag_threshold;
1448 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1449 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1450
1451 if (changed & WIPHY_PARAM_RETRY_SHORT)
1452 rdev->wiphy.retry_short = retry_short;
1453 if (changed & WIPHY_PARAM_RETRY_LONG)
1454 rdev->wiphy.retry_long = retry_long;
1455 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1456 rdev->wiphy.frag_threshold = frag_threshold;
1457 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1458 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1459 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1460 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1461
1462 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1463 if (result) {
1464 rdev->wiphy.retry_short = old_retry_short;
1465 rdev->wiphy.retry_long = old_retry_long;
1466 rdev->wiphy.frag_threshold = old_frag_threshold;
1467 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1468 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1469 }
1470 }
72bdcf34 1471
306d6112 1472 bad_res:
4bbf4d56 1473 mutex_unlock(&rdev->mtx);
f444de05
JB		 1474 if (netdev)
1475 dev_put(netdev);
55682965
JB		 1476 return result;
1477}
1478
1479
1480static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1481 struct cfg80211_registered_device *rdev,
55682965
JB		 1482 struct net_device *dev)
1483{
1484 void *hdr;
1485
1486 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1487 if (!hdr)
1488 return -1;
1489
1490 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1491 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1492 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1493 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1494
1495 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1496 rdev->devlist_generation ^
1497 (cfg80211_rdev_list_generation << 2));
1498
55682965
JB		 1499 return genlmsg_end(msg, hdr);
1500
1501 nla_put_failure:
bc3ed28c
TG		 1502 genlmsg_cancel(msg, hdr);
1503 return -EMSGSIZE;
55682965
JB		 1504}
1505
1506static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1507{
1508 int wp_idx = 0;
1509 int if_idx = 0;
1510 int wp_start = cb->args[0];
1511 int if_start = cb->args[1];
f5ea9120 1512 struct cfg80211_registered_device *rdev;
55682965
JB		 1513 struct wireless_dev *wdev;
1514
a1794390 1515 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1516 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1517 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1518 continue;
bba95fef
JB		 1519 if (wp_idx < wp_start) {
1520 wp_idx++;
55682965 1521 continue;
bba95fef 1522 }
55682965
JB		 1523 if_idx = 0;
1524
f5ea9120
JB		 1525 mutex_lock(&rdev->devlist_mtx);
1526 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1527 if (if_idx < if_start) {
1528 if_idx++;
55682965 1529 continue;
bba95fef 1530 }
55682965
JB		 1531 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1532 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1533 rdev, wdev->netdev) < 0) {
1534 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1535 goto out;
1536 }
1537 if_idx++;
55682965 1538 }
f5ea9120 1539 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1540
1541 wp_idx++;
55682965 1542 }
bba95fef 1543 out:
a1794390 1544 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1545
1546 cb->args[0] = wp_idx;
1547 cb->args[1] = if_idx;
1548
1549 return skb->len;
1550}
1551
1552static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1553{
1554 struct sk_buff *msg;
4c476991
JB		 1555 struct cfg80211_registered_device *dev = info->user_ptr[0];
1556 struct net_device *netdev = info->user_ptr[1];
55682965 1557
fd2120ca 1558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1559 if (!msg)
4c476991 1560 return -ENOMEM;
55682965 1561
d726405a 1562 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1563 dev, netdev) < 0) {
1564 nlmsg_free(msg);
1565 return -ENOBUFS;
1566 }
55682965 1567
134e6375 1568 return genlmsg_reply(msg, info);
55682965
JB		 1569}
1570
66f7ac50
MW		 1571static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1572 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1573 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1574 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1575 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1576 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1577};
1578
1579static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1580{
1581 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1582 int flag;
1583
1584 *mntrflags = 0;
1585
1586 if (!nla)
1587 return -EINVAL;
1588
1589 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1590 nla, mntr_flags_policy))
1591 return -EINVAL;
1592
1593 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1594 if (flags[flag])
1595 *mntrflags |= (1<<flag);
1596
1597 return 0;
1598}
1599
9bc383de 1600static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1601 struct net_device *netdev, u8 use_4addr,
1602 enum nl80211_iftype iftype)
9bc383de 1603{
ad4bb6f8 1604 if (!use_4addr) {
f350a0a8 1605 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1606 return -EBUSY;
9bc383de 1607 return 0;
ad4bb6f8 1608 }
9bc383de
JB		 1609
1610 switch (iftype) {
1611 case NL80211_IFTYPE_AP_VLAN:
1612 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1613 return 0;
1614 break;
1615 case NL80211_IFTYPE_STATION:
1616 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1617 return 0;
1618 break;
1619 default:
1620 break;
1621 }
1622
1623 return -EOPNOTSUPP;
1624}
1625
55682965
JB		 1626static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1627{
4c476991 1628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1629 struct vif_params params;
e36d56b6 1630 int err;
04a773ad 1631 enum nl80211_iftype otype, ntype;
4c476991 1632 struct net_device *dev = info->user_ptr[1];
92ffe055 1633 u32 _flags, *flags = NULL;
ac7f9cfa 1634 bool change = false;
55682965 1635
2ec600d6
LCC		 1636 memset(&params, 0, sizeof(params));
1637
04a773ad 1638 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1639
723b038d 1640 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1641 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1642 if (otype != ntype)
ac7f9cfa 1643 change = true;
4c476991
JB		 1644 if (ntype > NL80211_IFTYPE_MAX)
1645 return -EINVAL;
723b038d
JB		 1646 }
1647
92ffe055 1648 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1649 struct wireless_dev *wdev = dev->ieee80211_ptr;
1650
4c476991
JB		 1651 if (ntype != NL80211_IFTYPE_MESH_POINT)
1652 return -EINVAL;
29cbe68c
JB		 1653 if (netif_running(dev))
1654 return -EBUSY;
1655
1656 wdev_lock(wdev);
1657 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1658 IEEE80211_MAX_MESH_ID_LEN);
1659 wdev->mesh_id_up_len =
1660 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1661 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1662 wdev->mesh_id_up_len);
1663 wdev_unlock(wdev);
2ec600d6
LCC		 1664 }
1665
8b787643
FF		 1666 if (info->attrs[NL80211_ATTR_4ADDR]) {
1667 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1668 change = true;
ad4bb6f8 1669 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1670 if (err)
4c476991 1671 return err;
8b787643
FF		 1672 } else {
1673 params.use_4addr = -1;
1674 }
1675
92ffe055 1676 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1677 if (ntype != NL80211_IFTYPE_MONITOR)
1678 return -EINVAL;
92ffe055
JB		 1679 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1680 &_flags);
ac7f9cfa 1681 if (err)
4c476991 1682 return err;
ac7f9cfa
JB		 1683
1684 flags = &_flags;
1685 change = true;
92ffe055 1686 }
3b85875a 1687
ac7f9cfa 1688 if (change)
3d54d255 1689 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1690 else
1691 err = 0;
60719ffd 1692
9bc383de
JB		 1693 if (!err && params.use_4addr != -1)
1694 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1695
55682965
JB		 1696 return err;
1697}
1698
1699static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1700{
4c476991 1701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1702 struct vif_params params;
f9e10ce4 1703 struct net_device *dev;
55682965
JB		 1704 int err;
1705 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1706 u32 flags;
55682965 1707
2ec600d6
LCC		 1708 memset(&params, 0, sizeof(params));
1709
55682965
JB		 1710 if (!info->attrs[NL80211_ATTR_IFNAME])
1711 return -EINVAL;
1712
1713 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1714 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1715 if (type > NL80211_IFTYPE_MAX)
1716 return -EINVAL;
1717 }
1718
79c97e97 1719 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1720 !(rdev->wiphy.interface_modes & (1 << type)))
1721 return -EOPNOTSUPP;
55682965 1722
9bc383de 1723 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1724 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1725 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1726 if (err)
4c476991 1727 return err;
9bc383de 1728 }
8b787643 1729
66f7ac50
MW		 1730 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1731 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1732 &flags);
f9e10ce4 1733 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1734 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1735 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1736 if (IS_ERR(dev))
1737 return PTR_ERR(dev);
2ec600d6 1738
29cbe68c
JB		 1739 if (type == NL80211_IFTYPE_MESH_POINT &&
1740 info->attrs[NL80211_ATTR_MESH_ID]) {
1741 struct wireless_dev *wdev = dev->ieee80211_ptr;
1742
1743 wdev_lock(wdev);
1744 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1745 IEEE80211_MAX_MESH_ID_LEN);
1746 wdev->mesh_id_up_len =
1747 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1748 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1749 wdev->mesh_id_up_len);
1750 wdev_unlock(wdev);
1751 }
1752
f9e10ce4 1753 return 0;
55682965
JB		 1754}
1755
1756static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1757{
4c476991
JB		 1758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1759 struct net_device *dev = info->user_ptr[1];
55682965 1760
4c476991
JB		 1761 if (!rdev->ops->del_virtual_intf)
1762 return -EOPNOTSUPP;
55682965 1763
4c476991 1764 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1765}
1766
1d9d9213
SW		 1767static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1768{
1769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1770 struct net_device *dev = info->user_ptr[1];
1771 u16 noack_map;
1772
1773 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1774 return -EINVAL;
1775
1776 if (!rdev->ops->set_noack_map)
1777 return -EOPNOTSUPP;
1778
1779 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1780
1781 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1782}
1783
41ade00f
JB		 1784struct get_key_cookie {
1785 struct sk_buff *msg;
1786 int error;
b9454e83 1787 int idx;
41ade00f
JB		 1788};
1789
1790static void get_key_callback(void *c, struct key_params *params)
1791{
b9454e83 1792 struct nlattr *key;
41ade00f
JB		 1793 struct get_key_cookie *cookie = c;
1794
1795 if (params->key)
1796 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1797 params->key_len, params->key);
1798
1799 if (params->seq)
1800 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1801 params->seq_len, params->seq);
1802
1803 if (params->cipher)
1804 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1805 params->cipher);
1806
b9454e83
JB		 1807 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1808 if (!key)
1809 goto nla_put_failure;
1810
1811 if (params->key)
1812 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1813 params->key_len, params->key);
1814
1815 if (params->seq)
1816 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1817 params->seq_len, params->seq);
1818
1819 if (params->cipher)
1820 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1821 params->cipher);
1822
1823 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1824
1825 nla_nest_end(cookie->msg, key);
1826
41ade00f
JB		 1827 return;
1828 nla_put_failure:
1829 cookie->error = 1;
1830}
1831
1832static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1833{
4c476991 1834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1835 int err;
4c476991 1836 struct net_device *dev = info->user_ptr[1];
41ade00f 1837 u8 key_idx = 0;
e31b8213
JB		 1838 const u8 *mac_addr = NULL;
1839 bool pairwise;
41ade00f
JB		 1840 struct get_key_cookie cookie = {
1841 .error = 0,
1842 };
1843 void *hdr;
1844 struct sk_buff *msg;
1845
1846 if (info->attrs[NL80211_ATTR_KEY_IDX])
1847 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1848
3cfcf6ac 1849 if (key_idx > 5)
41ade00f
JB		 1850 return -EINVAL;
1851
1852 if (info->attrs[NL80211_ATTR_MAC])
1853 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1854
e31b8213
JB		 1855 pairwise = !!mac_addr;
1856 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1857 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1858 if (kt >= NUM_NL80211_KEYTYPES)
1859 return -EINVAL;
1860 if (kt != NL80211_KEYTYPE_GROUP &&
1861 kt != NL80211_KEYTYPE_PAIRWISE)
1862 return -EINVAL;
1863 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1864 }
1865
4c476991
JB		 1866 if (!rdev->ops->get_key)
1867 return -EOPNOTSUPP;
41ade00f 1868
fd2120ca 1869 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1870 if (!msg)
1871 return -ENOMEM;
41ade00f
JB		 1872
1873 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1874 NL80211_CMD_NEW_KEY);
4c476991
JB		 1875 if (IS_ERR(hdr))
1876 return PTR_ERR(hdr);
41ade00f
JB		 1877
1878 cookie.msg = msg;
b9454e83 1879 cookie.idx = key_idx;
41ade00f
JB		 1880
1881 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1882 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1883 if (mac_addr)
1884 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1885
e31b8213
JB		 1886 if (pairwise && mac_addr &&
1887 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1888 return -ENOENT;
1889
1890 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1891 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1892
1893 if (err)
6c95e2a2 1894 goto free_msg;
41ade00f
JB		 1895
1896 if (cookie.error)
1897 goto nla_put_failure;
1898
1899 genlmsg_end(msg, hdr);
4c476991 1900 return genlmsg_reply(msg, info);
41ade00f
JB		 1901
1902 nla_put_failure:
1903 err = -ENOBUFS;
6c95e2a2 1904 free_msg:
41ade00f 1905 nlmsg_free(msg);
41ade00f
JB		 1906 return err;
1907}
1908
1909static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1910{
4c476991 1911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1912 struct key_parse key;
41ade00f 1913 int err;
4c476991 1914 struct net_device *dev = info->user_ptr[1];
41ade00f 1915
b9454e83
JB		 1916 err = nl80211_parse_key(info, &key);
1917 if (err)
1918 return err;
41ade00f 1919
b9454e83 1920 if (key.idx < 0)
41ade00f
JB		 1921 return -EINVAL;
1922
b9454e83
JB		 1923 /* only support setting default key */
1924 if (!key.def && !key.defmgmt)
41ade00f
JB		 1925 return -EINVAL;
1926
dbd2fd65 1927 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1928
dbd2fd65
JB		 1929 if (key.def) {
1930 if (!rdev->ops->set_default_key) {
1931 err = -EOPNOTSUPP;
1932 goto out;
1933 }
41ade00f 1934
dbd2fd65
JB		 1935 err = nl80211_key_allowed(dev->ieee80211_ptr);
1936 if (err)
1937 goto out;
1938
dbd2fd65
JB		 1939 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1940 key.def_uni, key.def_multi);
1941
1942 if (err)
1943 goto out;
fffd0934 1944
3d23e349 1945#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1946 dev->ieee80211_ptr->wext.default_key = key.idx;
1947#endif
1948 } else {
1949 if (key.def_uni || !key.def_multi) {
1950 err = -EINVAL;
1951 goto out;
1952 }
1953
1954 if (!rdev->ops->set_default_mgmt_key) {
1955 err = -EOPNOTSUPP;
1956 goto out;
1957 }
1958
1959 err = nl80211_key_allowed(dev->ieee80211_ptr);
1960 if (err)
1961 goto out;
1962
1963 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1964 dev, key.idx);
1965 if (err)
1966 goto out;
1967
1968#ifdef CONFIG_CFG80211_WEXT
1969 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1970#endif
dbd2fd65
JB		 1971 }
1972
1973 out:
fffd0934 1974 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1975
41ade00f
JB		 1976 return err;
1977}
1978
1979static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1980{
4c476991 1981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1982 int err;
4c476991 1983 struct net_device *dev = info->user_ptr[1];
b9454e83 1984 struct key_parse key;
e31b8213 1985 const u8 *mac_addr = NULL;
41ade00f 1986
b9454e83
JB		 1987 err = nl80211_parse_key(info, &key);
1988 if (err)
1989 return err;
41ade00f 1990
b9454e83 1991 if (!key.p.key)
41ade00f
JB		 1992 return -EINVAL;
1993
41ade00f
JB		 1994 if (info->attrs[NL80211_ATTR_MAC])
1995 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1996
e31b8213
JB		 1997 if (key.type == -1) {
1998 if (mac_addr)
1999 key.type = NL80211_KEYTYPE_PAIRWISE;
2000 else
2001 key.type = NL80211_KEYTYPE_GROUP;
2002 }
2003
2004 /* for now */
2005 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2006 key.type != NL80211_KEYTYPE_GROUP)
2007 return -EINVAL;
2008
4c476991
JB		 2009 if (!rdev->ops->add_key)
2010 return -EOPNOTSUPP;
25e47c18 2011
e31b8213
JB		 2012 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2013 key.type == NL80211_KEYTYPE_PAIRWISE,
2014 mac_addr))
4c476991 2015 return -EINVAL;
41ade00f 2016
fffd0934
JB		 2017 wdev_lock(dev->ieee80211_ptr);
2018 err = nl80211_key_allowed(dev->ieee80211_ptr);
2019 if (!err)
2020 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2021 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2022 mac_addr, &key.p);
2023 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2024
41ade00f
JB		 2025 return err;
2026}
2027
2028static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2029{
4c476991 2030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2031 int err;
4c476991 2032 struct net_device *dev = info->user_ptr[1];
41ade00f 2033 u8 *mac_addr = NULL;
b9454e83 2034 struct key_parse key;
41ade00f 2035
b9454e83
JB		 2036 err = nl80211_parse_key(info, &key);
2037 if (err)
2038 return err;
41ade00f
JB		 2039
2040 if (info->attrs[NL80211_ATTR_MAC])
2041 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2042
e31b8213
JB		 2043 if (key.type == -1) {
2044 if (mac_addr)
2045 key.type = NL80211_KEYTYPE_PAIRWISE;
2046 else
2047 key.type = NL80211_KEYTYPE_GROUP;
2048 }
2049
2050 /* for now */
2051 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2052 key.type != NL80211_KEYTYPE_GROUP)
2053 return -EINVAL;
2054
4c476991
JB		 2055 if (!rdev->ops->del_key)
2056 return -EOPNOTSUPP;
41ade00f 2057
fffd0934
JB		 2058 wdev_lock(dev->ieee80211_ptr);
2059 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2060
2061 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2062 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2063 err = -ENOENT;
2064
fffd0934 2065 if (!err)
e31b8213
JB		 2066 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2067 key.type == NL80211_KEYTYPE_PAIRWISE,
2068 mac_addr);
41ade00f 2069
3d23e349 2070#ifdef CONFIG_CFG80211_WEXT
08645126 2071 if (!err) {
b9454e83 2072 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2073 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2074 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2075 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2076 }
2077#endif
fffd0934 2078 wdev_unlock(dev->ieee80211_ptr);
08645126 2079
41ade00f
JB		 2080 return err;
2081}
2082
8860020e
JB		 2083static int nl80211_parse_beacon(struct genl_info *info,
2084 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2085{
8860020e 2086 bool haveinfo = false;
ed1b6cc7 2087
9946ecfb
JM		 2088 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2089 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2090 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2091 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2092 return -EINVAL;
2093
8860020e 2094 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2095
ed1b6cc7 2096 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2097 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2098 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2099 if (!bcn->head_len)
2100 return -EINVAL;
2101 haveinfo = true;
ed1b6cc7
JB		 2102 }
2103
2104 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2105 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2106 bcn->tail_len =
ed1b6cc7 2107 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2108 haveinfo = true;
ed1b6cc7
JB		 2109 }
2110
4c476991
JB		 2111 if (!haveinfo)
2112 return -EINVAL;
3b85875a 2113
9946ecfb 2114 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2115 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2116 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2117 }
2118
2119 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2120 bcn->proberesp_ies =
9946ecfb 2121 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2122 bcn->proberesp_ies_len =
9946ecfb
JM		 2123 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2124 }
2125
2126 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2127 bcn->assocresp_ies =
9946ecfb 2128 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2129 bcn->assocresp_ies_len =
9946ecfb
JM		 2130 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2131 }
2132
00f740e1 2133 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2134 bcn->probe_resp =
00f740e1 2135 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2136 bcn->probe_resp_len =
00f740e1
AN		 2137 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2138 }
2139
8860020e
JB		 2140 return 0;
2141}
2142
2143static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2144{
2145 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2146 struct net_device *dev = info->user_ptr[1];
2147 struct wireless_dev *wdev = dev->ieee80211_ptr;
2148 struct cfg80211_ap_settings params;
2149 int err;
2150
2151 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2152 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2153 return -EOPNOTSUPP;
2154
2155 if (!rdev->ops->start_ap)
2156 return -EOPNOTSUPP;
2157
2158 if (wdev->beacon_interval)
2159 return -EALREADY;
2160
2161 memset(&params, 0, sizeof(params));
2162
2163 /* these are required for START_AP */
2164 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2165 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2166 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2167 return -EINVAL;
2168
2169 err = nl80211_parse_beacon(info, &params.beacon);
2170 if (err)
2171 return err;
2172
2173 params.beacon_interval =
2174 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2175 params.dtim_period =
2176 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2177
2178 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2179 if (err)
2180 return err;
2181
2182 /*
2183 * In theory, some of these attributes should be required here
2184 * but since they were not used when the command was originally
2185 * added, keep them optional for old user space programs to let
2186 * them continue to work with drivers that do not need the
2187 * additional information -- drivers must check!
2188 */
2189 if (info->attrs[NL80211_ATTR_SSID]) {
2190 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2191 params.ssid_len =
2192 nla_len(info->attrs[NL80211_ATTR_SSID]);
2193 if (params.ssid_len == 0 ||
2194 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2195 return -EINVAL;
2196 }
2197
2198 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2199 params.hidden_ssid = nla_get_u32(
2200 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2201 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2202 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2203 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2204 return -EINVAL;
2205 }
2206
2207 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2208
2209 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2210 params.auth_type = nla_get_u32(
2211 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2212 if (!nl80211_valid_auth_type(params.auth_type))
2213 return -EINVAL;
2214 } else
2215 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2216
2217 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2218 NL80211_MAX_NR_CIPHER_SUITES);
2219 if (err)
2220 return err;
2221
1b658f11
VT		 2222 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2223 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2224 return -EOPNOTSUPP;
2225 params.inactivity_timeout = nla_get_u16(
2226 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2227 }
2228
8860020e
JB		 2229 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
2230 if (!err)
2231 wdev->beacon_interval = params.beacon_interval;
56d1893d 2232 return err;
ed1b6cc7
JB		 2233}
2234
8860020e
JB		 2235static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2236{
2237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2238 struct net_device *dev = info->user_ptr[1];
2239 struct wireless_dev *wdev = dev->ieee80211_ptr;
2240 struct cfg80211_beacon_data params;
2241 int err;
2242
2243 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2244 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2245 return -EOPNOTSUPP;
2246
2247 if (!rdev->ops->change_beacon)
2248 return -EOPNOTSUPP;
2249
2250 if (!wdev->beacon_interval)
2251 return -EINVAL;
2252
2253 err = nl80211_parse_beacon(info, &params);
2254 if (err)
2255 return err;
2256
2257 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2258}
2259
2260static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2261{
4c476991
JB		 2262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2263 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2264 struct wireless_dev *wdev = dev->ieee80211_ptr;
2265 int err;
ed1b6cc7 2266
8860020e 2267 if (!rdev->ops->stop_ap)
4c476991 2268 return -EOPNOTSUPP;
ed1b6cc7 2269
074ac8df 2270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2271 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2272 return -EOPNOTSUPP;
3b85875a 2273
8860020e
JB		 2274 if (!wdev->beacon_interval)
2275 return -ENOENT;
2276
2277 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
56d1893d
JB		 2278 if (!err)
2279 wdev->beacon_interval = 0;
2280 return err;
ed1b6cc7
JB		 2281}
2282
5727ef1b
JB		 2283static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2284 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2285 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2286 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2287 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2288 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2289 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2290};
2291
eccb8e8f 2292static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2293 enum nl80211_iftype iftype,
eccb8e8f 2294 struct station_parameters *params)
5727ef1b
JB		 2295{
2296 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2297 struct nlattr *nla;
5727ef1b
JB		 2298 int flag;
2299
eccb8e8f
JB		 2300 /*
2301 * Try parsing the new attribute first so userspace
2302 * can specify both for older kernels.
2303 */
2304 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2305 if (nla) {
2306 struct nl80211_sta_flag_update *sta_flags;
2307
2308 sta_flags = nla_data(nla);
2309 params->sta_flags_mask = sta_flags->mask;
2310 params->sta_flags_set = sta_flags->set;
2311 if ((params->sta_flags_mask |
2312 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2313 return -EINVAL;
2314 return 0;
2315 }
2316
2317 /* if present, parse the old attribute */
5727ef1b 2318
eccb8e8f 2319 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2320 if (!nla)
2321 return 0;
2322
2323 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2324 nla, sta_flags_policy))
2325 return -EINVAL;
2326
bdd3ae3d
JB		 2327 /*
2328 * Only allow certain flags for interface types so that
2329 * other attributes are silently ignored. Remember that
2330 * this is backward compatibility code with old userspace
2331 * and shouldn't be hit in other cases anyway.
2332 */
2333 switch (iftype) {
2334 case NL80211_IFTYPE_AP:
2335 case NL80211_IFTYPE_AP_VLAN:
2336 case NL80211_IFTYPE_P2P_GO:
2337 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2338 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2339 BIT(NL80211_STA_FLAG_WME) |
2340 BIT(NL80211_STA_FLAG_MFP);
2341 break;
2342 case NL80211_IFTYPE_P2P_CLIENT:
2343 case NL80211_IFTYPE_STATION:
2344 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2345 BIT(NL80211_STA_FLAG_TDLS_PEER);
2346 break;
2347 case NL80211_IFTYPE_MESH_POINT:
2348 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2349 BIT(NL80211_STA_FLAG_MFP) |
2350 BIT(NL80211_STA_FLAG_AUTHORIZED);
2351 default:
2352 return -EINVAL;
2353 }
5727ef1b
JB		 2354
2355 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2356 if (flags[flag])
eccb8e8f 2357 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2358
2359 return 0;
2360}
2361
c8dcfd8a
FF		 2362static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2363 int attr)
2364{
2365 struct nlattr *rate;
2366 u16 bitrate;
2367
2368 rate = nla_nest_start(msg, attr);
2369 if (!rate)
2370 goto nla_put_failure;
2371
2372 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2373 bitrate = cfg80211_calculate_bitrate(info);
2374 if (bitrate > 0)
2375 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2376
2377 if (info->flags & RATE_INFO_FLAGS_MCS)
2378 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2379 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2380 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2381 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2382 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2383
2384 nla_nest_end(msg, rate);
2385 return true;
2386
2387nla_put_failure:
2388 return false;
2389}
2390
fd5b74dc 2391static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2392 int flags,
2393 struct cfg80211_registered_device *rdev,
2394 struct net_device *dev,
98b62183 2395 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2396{
2397 void *hdr;
f4263c98 2398 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2399
2400 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2401 if (!hdr)
2402 return -1;
2403
2404 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2405 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2406
f5ea9120
JB		 2407 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2408
2ec600d6
LCC		 2409 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2410 if (!sinfoattr)
fd5b74dc 2411 goto nla_put_failure;
ebe27c91
MSS		 2412 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2413 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2414 sinfo->connected_time);
2ec600d6
LCC		 2415 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2416 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2417 sinfo->inactive_time);
2418 if (sinfo->filled & STATION_INFO_RX_BYTES)
2419 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2420 sinfo->rx_bytes);
2421 if (sinfo->filled & STATION_INFO_TX_BYTES)
2422 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2423 sinfo->tx_bytes);
2424 if (sinfo->filled & STATION_INFO_LLID)
2425 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2426 sinfo->llid);
2427 if (sinfo->filled & STATION_INFO_PLID)
2428 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2429 sinfo->plid);
2430 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2431 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2432 sinfo->plink_state);
66266b3a
JL		 2433 switch (rdev->wiphy.signal_type) {
2434 case CFG80211_SIGNAL_TYPE_MBM:
2435 if (sinfo->filled & STATION_INFO_SIGNAL)
2436 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2437 sinfo->signal);
2438 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2439 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2440 sinfo->signal_avg);
2441 break;
2442 default:
2443 break;
2444 }
420e7fab 2445 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2446 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2447 NL80211_STA_INFO_TX_BITRATE))
2448 goto nla_put_failure;
2449 }
2450 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2451 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2452 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2453 goto nla_put_failure;
420e7fab 2454 }
98c8a60a
JM		 2455 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2456 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2457 sinfo->rx_packets);
2458 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2459 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2460 sinfo->tx_packets);
b206b4ef
BR		 2461 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2462 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2463 sinfo->tx_retries);
2464 if (sinfo->filled & STATION_INFO_TX_FAILED)
2465 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2466 sinfo->tx_failed);
a85e1d55
PS		 2467 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2468 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2469 sinfo->beacon_loss_count);
f4263c98
PS		 2470 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2471 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2472 if (!bss_param)
2473 goto nla_put_failure;
2474
2475 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2476 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2477 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2478 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2479 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2480 NLA_PUT_FLAG(msg,
2481 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2482 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2483 sinfo->bss_param.dtim_period);
2484 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2485 sinfo->bss_param.beacon_interval);
2486
2487 nla_nest_end(msg, bss_param);
2488 }
bb6e753e
HS		 2489 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2490 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2491 sizeof(struct nl80211_sta_flag_update),
2492 &sinfo->sta_flags);
2ec600d6 2493 nla_nest_end(msg, sinfoattr);
fd5b74dc 2494
040bdf71 2495 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2496 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2497 sinfo->assoc_req_ies);
2498
fd5b74dc
JB		 2499 return genlmsg_end(msg, hdr);
2500
2501 nla_put_failure:
bc3ed28c
TG		 2502 genlmsg_cancel(msg, hdr);
2503 return -EMSGSIZE;
fd5b74dc
JB		 2504}
2505
2ec600d6 2506static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2507 struct netlink_callback *cb)
2ec600d6 2508{
2ec600d6
LCC		 2509 struct station_info sinfo;
2510 struct cfg80211_registered_device *dev;
bba95fef 2511 struct net_device *netdev;
2ec600d6 2512 u8 mac_addr[ETH_ALEN];
bba95fef 2513 int sta_idx = cb->args[1];
2ec600d6 2514 int err;
2ec600d6 2515
67748893
JB		 2516 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2517 if (err)
2518 return err;
bba95fef
JB		 2519
2520 if (!dev->ops->dump_station) {
eec60b03 2521 err = -EOPNOTSUPP;
bba95fef
JB		 2522 goto out_err;
2523 }
2524
bba95fef 2525 while (1) {
f612cedf 2526 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2527 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2528 mac_addr, &sinfo);
2529 if (err == -ENOENT)
2530 break;
2531 if (err)
3b85875a 2532 goto out_err;
bba95fef
JB		 2533
2534 if (nl80211_send_station(skb,
2535 NETLINK_CB(cb->skb).pid,
2536 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2537 dev, netdev, mac_addr,
bba95fef
JB		 2538 &sinfo) < 0)
2539 goto out;
2540
2541 sta_idx++;
2542 }
2543
2544
2545 out:
2546 cb->args[1] = sta_idx;
2547 err = skb->len;
bba95fef 2548 out_err:
67748893 2549 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2550
2551 return err;
2ec600d6 2552}
fd5b74dc 2553
5727ef1b
JB		 2554static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2555{
4c476991
JB		 2556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2557 struct net_device *dev = info->user_ptr[1];
2ec600d6 2558 struct station_info sinfo;
fd5b74dc
JB		 2559 struct sk_buff *msg;
2560 u8 *mac_addr = NULL;
4c476991 2561 int err;
fd5b74dc 2562
2ec600d6 2563 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2564
2565 if (!info->attrs[NL80211_ATTR_MAC])
2566 return -EINVAL;
2567
2568 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2569
4c476991
JB		 2570 if (!rdev->ops->get_station)
2571 return -EOPNOTSUPP;
3b85875a 2572
4c476991 2573 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2574 if (err)
4c476991 2575 return err;
2ec600d6 2576
fd2120ca 2577 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2578 if (!msg)
4c476991 2579 return -ENOMEM;
fd5b74dc
JB		 2580
2581 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2582 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2583 nlmsg_free(msg);
2584 return -ENOBUFS;
2585 }
3b85875a 2586
4c476991 2587 return genlmsg_reply(msg, info);
5727ef1b
JB		 2588}
2589
2590/*
c258d2de 2591 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2592 */
80b99899
JB		 2593static struct net_device *get_vlan(struct genl_info *info,
2594 struct cfg80211_registered_device *rdev)
5727ef1b 2595{
463d0183 2596 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2597 struct net_device *v;
2598 int ret;
2599
2600 if (!vlanattr)
2601 return NULL;
2602
2603 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2604 if (!v)
2605 return ERR_PTR(-ENODEV);
2606
2607 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2608 ret = -EINVAL;
2609 goto error;
5727ef1b 2610 }
80b99899
JB		 2611
2612 if (!netif_running(v)) {
2613 ret = -ENETDOWN;
2614 goto error;
2615 }
2616
2617 return v;
2618 error:
2619 dev_put(v);
2620 return ERR_PTR(ret);
5727ef1b
JB		 2621}
2622
2623static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2624{
4c476991 2625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2626 int err;
4c476991 2627 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2628 struct station_parameters params;
2629 u8 *mac_addr = NULL;
2630
2631 memset(&params, 0, sizeof(params));
2632
2633 params.listen_interval = -1;
57cf8043 2634 params.plink_state = -1;
5727ef1b
JB		 2635
2636 if (info->attrs[NL80211_ATTR_STA_AID])
2637 return -EINVAL;
2638
2639 if (!info->attrs[NL80211_ATTR_MAC])
2640 return -EINVAL;
2641
2642 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2643
2644 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2645 params.supported_rates =
2646 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2647 params.supported_rates_len =
2648 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2649 }
2650
2651 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2652 params.listen_interval =
2653 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2654
36aedc90
JM		 2655 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2656 params.ht_capa =
2657 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2658
bdd90d5e
JB		 2659 if (!rdev->ops->change_station)
2660 return -EOPNOTSUPP;
2661
bdd3ae3d 2662 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2663 return -EINVAL;
2664
2ec600d6
LCC		 2665 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2666 params.plink_action =
2667 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2668
9c3990aa
JC		 2669 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2670 params.plink_state =
2671 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2672
a97f4424
JB		 2673 switch (dev->ieee80211_ptr->iftype) {
2674 case NL80211_IFTYPE_AP:
2675 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2676 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2677 /* disallow mesh-specific things */
2678 if (params.plink_action)
bdd90d5e
JB		 2679 return -EINVAL;
2680
2681 /* TDLS can't be set, ... */
2682 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2683 return -EINVAL;
2684 /*
2685 * ... but don't bother the driver with it. This works around
2686 * a hostapd/wpa_supplicant issue -- it always includes the
2687 * TLDS_PEER flag in the mask even for AP mode.
2688 */
2689 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2690
2691 /* accept only the listed bits */
2692 if (params.sta_flags_mask &
2693 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2694 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2695 BIT(NL80211_STA_FLAG_WME) |
2696 BIT(NL80211_STA_FLAG_MFP)))
2697 return -EINVAL;
2698
2699 /* must be last in here for error handling */
2700 params.vlan = get_vlan(info, rdev);
2701 if (IS_ERR(params.vlan))
2702 return PTR_ERR(params.vlan);
a97f4424 2703 break;
074ac8df 2704 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2705 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2706 /*
2707 * Don't allow userspace to change the TDLS_PEER flag,
2708 * but silently ignore attempts to change it since we
2709 * don't have state here to verify that it doesn't try
2710 * to change the flag.
2711 */
2712 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2713 /* fall through */
2714 case NL80211_IFTYPE_ADHOC:
2715 /* disallow things sta doesn't support */
2716 if (params.plink_action)
2717 return -EINVAL;
2718 if (params.ht_capa)
2719 return -EINVAL;
2720 if (params.listen_interval >= 0)
2721 return -EINVAL;
bdd90d5e
JB		 2722 /* reject any changes other than AUTHORIZED */
2723 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2724 return -EINVAL;
a97f4424
JB		 2725 break;
2726 case NL80211_IFTYPE_MESH_POINT:
2727 /* disallow things mesh doesn't support */
2728 if (params.vlan)
bdd90d5e 2729 return -EINVAL;
a97f4424 2730 if (params.ht_capa)
bdd90d5e 2731 return -EINVAL;
a97f4424 2732 if (params.listen_interval >= 0)
bdd90d5e
JB		 2733 return -EINVAL;
2734 /*
2735 * No special handling for TDLS here -- the userspace
2736 * mesh code doesn't have this bug.
2737 */
b39c48fa
JC		 2738 if (params.sta_flags_mask &
2739 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2740 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2741 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2742 return -EINVAL;
a97f4424
JB		 2743 break;
2744 default:
bdd90d5e 2745 return -EOPNOTSUPP;
034d655e
JB		 2746 }
2747
bdd90d5e 2748 /* be aware of params.vlan when changing code here */
5727ef1b 2749
79c97e97 2750 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2751
5727ef1b
JB		 2752 if (params.vlan)
2753 dev_put(params.vlan);
3b85875a 2754
5727ef1b
JB		 2755 return err;
2756}
2757
c75786c9
EP		 2758static struct nla_policy
2759nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2760 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2761 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2762};
2763
5727ef1b
JB		 2764static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2765{
4c476991 2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2767 int err;
4c476991 2768 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2769 struct station_parameters params;
2770 u8 *mac_addr = NULL;
2771
2772 memset(&params, 0, sizeof(params));
2773
2774 if (!info->attrs[NL80211_ATTR_MAC])
2775 return -EINVAL;
2776
5727ef1b
JB		 2777 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2778 return -EINVAL;
2779
2780 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2781 return -EINVAL;
2782
0e956c13
TLSC		 2783 if (!info->attrs[NL80211_ATTR_STA_AID])
2784 return -EINVAL;
2785
5727ef1b
JB		 2786 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2787 params.supported_rates =
2788 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2789 params.supported_rates_len =
2790 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2791 params.listen_interval =
2792 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2793
0e956c13
TLSC		 2794 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2795 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2796 return -EINVAL;
51b50fbe 2797
36aedc90
JM		 2798 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2799 params.ht_capa =
2800 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2801
96b78dff
JC		 2802 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2803 params.plink_action =
2804 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2805
bdd90d5e
JB		 2806 if (!rdev->ops->add_station)
2807 return -EOPNOTSUPP;
2808
bdd3ae3d 2809 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2810 return -EINVAL;
2811
bdd90d5e
JB		 2812 switch (dev->ieee80211_ptr->iftype) {
2813 case NL80211_IFTYPE_AP:
2814 case NL80211_IFTYPE_AP_VLAN:
2815 case NL80211_IFTYPE_P2P_GO:
2816 /* parse WME attributes if sta is WME capable */
2817 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2818 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2819 info->attrs[NL80211_ATTR_STA_WME]) {
2820 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2821 struct nlattr *nla;
2822
2823 nla = info->attrs[NL80211_ATTR_STA_WME];
2824 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2825 nl80211_sta_wme_policy);
2826 if (err)
2827 return err;
2828
2829 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2830 params.uapsd_queues =
2831 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2832 if (params.uapsd_queues &
2833 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2834 return -EINVAL;
c75786c9 2835
bdd90d5e
JB		 2836 if (tb[NL80211_STA_WME_MAX_SP])
2837 params.max_sp =
2838 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 2839
bdd90d5e
JB		 2840 if (params.max_sp &
2841 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2842 return -EINVAL;
4319e193 2843
bdd90d5e
JB		 2844 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2845 }
2846 /* TDLS peers cannot be added */
2847 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 2848 return -EINVAL;
bdd90d5e
JB		 2849 /* but don't bother the driver with it */
2850 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 2851
bdd90d5e
JB		 2852 /* must be last in here for error handling */
2853 params.vlan = get_vlan(info, rdev);
2854 if (IS_ERR(params.vlan))
2855 return PTR_ERR(params.vlan);
2856 break;
2857 case NL80211_IFTYPE_MESH_POINT:
2858 /* TDLS peers cannot be added */
2859 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2860 return -EINVAL;
2861 break;
2862 case NL80211_IFTYPE_STATION:
2863 /* Only TDLS peers can be added */
2864 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2865 return -EINVAL;
2866 /* Can only add if TDLS ... */
2867 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2868 return -EOPNOTSUPP;
2869 /* ... with external setup is supported */
2870 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2871 return -EOPNOTSUPP;
2872 break;
2873 default:
2874 return -EOPNOTSUPP;
c75786c9
EP		 2875 }
2876
bdd90d5e 2877 /* be aware of params.vlan when changing code here */
5727ef1b 2878
79c97e97 2879 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2880
5727ef1b
JB		 2881 if (params.vlan)
2882 dev_put(params.vlan);
5727ef1b
JB		 2883 return err;
2884}
2885
2886static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2887{
4c476991
JB		 2888 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2889 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2890 u8 *mac_addr = NULL;
2891
2892 if (info->attrs[NL80211_ATTR_MAC])
2893 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2894
e80cf853 2895 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2896 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2897 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2899 return -EINVAL;
5727ef1b 2900
4c476991
JB		 2901 if (!rdev->ops->del_station)
2902 return -EOPNOTSUPP;
3b85875a 2903
4c476991 2904 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2905}
2906
2ec600d6
LCC		 2907static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2908 int flags, struct net_device *dev,
2909 u8 *dst, u8 *next_hop,
2910 struct mpath_info *pinfo)
2911{
2912 void *hdr;
2913 struct nlattr *pinfoattr;
2914
2915 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2916 if (!hdr)
2917 return -1;
2918
2919 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2920 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2921 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2922
f5ea9120
JB		 2923 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2924
2ec600d6
LCC		 2925 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2926 if (!pinfoattr)
2927 goto nla_put_failure;
2928 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2929 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2930 pinfo->frame_qlen);
d19b3bf6
RP		 2931 if (pinfo->filled & MPATH_INFO_SN)
2932 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2933 pinfo->sn);
2ec600d6
LCC		 2934 if (pinfo->filled & MPATH_INFO_METRIC)
2935 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2936 pinfo->metric);
2937 if (pinfo->filled & MPATH_INFO_EXPTIME)
2938 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2939 pinfo->exptime);
2940 if (pinfo->filled & MPATH_INFO_FLAGS)
2941 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2942 pinfo->flags);
2943 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2944 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2945 pinfo->discovery_timeout);
2946 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2947 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2948 pinfo->discovery_retries);
2949
2950 nla_nest_end(msg, pinfoattr);
2951
2952 return genlmsg_end(msg, hdr);
2953
2954 nla_put_failure:
bc3ed28c
TG		 2955 genlmsg_cancel(msg, hdr);
2956 return -EMSGSIZE;
2ec600d6
LCC		 2957}
2958
2959static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2960 struct netlink_callback *cb)
2ec600d6 2961{
2ec600d6
LCC		 2962 struct mpath_info pinfo;
2963 struct cfg80211_registered_device *dev;
bba95fef 2964 struct net_device *netdev;
2ec600d6
LCC		 2965 u8 dst[ETH_ALEN];
2966 u8 next_hop[ETH_ALEN];
bba95fef 2967 int path_idx = cb->args[1];
2ec600d6 2968 int err;
2ec600d6 2969
67748893
JB		 2970 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2971 if (err)
2972 return err;
bba95fef
JB		 2973
2974 if (!dev->ops->dump_mpath) {
eec60b03 2975 err = -EOPNOTSUPP;
bba95fef
JB		 2976 goto out_err;
2977 }
2978
eec60b03
JM		 2979 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2980 err = -EOPNOTSUPP;
0448b5fc 2981 goto out_err;
eec60b03
JM		 2982 }
2983
bba95fef
JB		 2984 while (1) {
2985 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2986 dst, next_hop, &pinfo);
2987 if (err == -ENOENT)
2ec600d6 2988 break;
bba95fef 2989 if (err)
3b85875a 2990 goto out_err;
2ec600d6 2991
bba95fef
JB		 2992 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2993 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2994 netdev, dst, next_hop,
2995 &pinfo) < 0)
2996 goto out;
2ec600d6 2997
bba95fef 2998 path_idx++;
2ec600d6 2999 }
2ec600d6 3000
2ec600d6 3001
bba95fef
JB		 3002 out:
3003 cb->args[1] = path_idx;
3004 err = skb->len;
bba95fef 3005 out_err:
67748893 3006 nl80211_finish_netdev_dump(dev);
bba95fef 3007 return err;
2ec600d6
LCC		 3008}
3009
3010static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3011{
4c476991 3012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3013 int err;
4c476991 3014 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3015 struct mpath_info pinfo;
3016 struct sk_buff *msg;
3017 u8 *dst = NULL;
3018 u8 next_hop[ETH_ALEN];
3019
3020 memset(&pinfo, 0, sizeof(pinfo));
3021
3022 if (!info->attrs[NL80211_ATTR_MAC])
3023 return -EINVAL;
3024
3025 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3026
4c476991
JB		 3027 if (!rdev->ops->get_mpath)
3028 return -EOPNOTSUPP;
2ec600d6 3029
4c476991
JB		 3030 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3031 return -EOPNOTSUPP;
eec60b03 3032
79c97e97 3033 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3034 if (err)
4c476991 3035 return err;
2ec600d6 3036
fd2120ca 3037 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3038 if (!msg)
4c476991 3039 return -ENOMEM;
2ec600d6
LCC		 3040
3041 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3042 dev, dst, next_hop, &pinfo) < 0) {
3043 nlmsg_free(msg);
3044 return -ENOBUFS;
3045 }
3b85875a 3046
4c476991 3047 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3048}
3049
3050static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3051{
4c476991
JB		 3052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3053 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3054 u8 *dst = NULL;
3055 u8 *next_hop = NULL;
3056
3057 if (!info->attrs[NL80211_ATTR_MAC])
3058 return -EINVAL;
3059
3060 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3061 return -EINVAL;
3062
3063 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3064 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3065
4c476991
JB		 3066 if (!rdev->ops->change_mpath)
3067 return -EOPNOTSUPP;
35a8efe1 3068
4c476991
JB		 3069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3070 return -EOPNOTSUPP;
2ec600d6 3071
4c476991 3072 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3073}
4c476991 3074
2ec600d6
LCC		 3075static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3076{
4c476991
JB		 3077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3078 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3079 u8 *dst = NULL;
3080 u8 *next_hop = NULL;
3081
3082 if (!info->attrs[NL80211_ATTR_MAC])
3083 return -EINVAL;
3084
3085 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3086 return -EINVAL;
3087
3088 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3089 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3090
4c476991
JB		 3091 if (!rdev->ops->add_mpath)
3092 return -EOPNOTSUPP;
35a8efe1 3093
4c476991
JB		 3094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3095 return -EOPNOTSUPP;
2ec600d6 3096
4c476991 3097 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3098}
3099
3100static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3101{
4c476991
JB		 3102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3103 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3104 u8 *dst = NULL;
3105
3106 if (info->attrs[NL80211_ATTR_MAC])
3107 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3108
4c476991
JB		 3109 if (!rdev->ops->del_mpath)
3110 return -EOPNOTSUPP;
3b85875a 3111
4c476991 3112 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3113}
3114
9f1ba906
JM		 3115static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3116{
4c476991
JB		 3117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3118 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3119 struct bss_parameters params;
3120
3121 memset(&params, 0, sizeof(params));
3122 /* default to not changing parameters */
3123 params.use_cts_prot = -1;
3124 params.use_short_preamble = -1;
3125 params.use_short_slot_time = -1;
fd8aaaf3 3126 params.ap_isolate = -1;
50b12f59 3127 params.ht_opmode = -1;
9f1ba906
JM		 3128
3129 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3130 params.use_cts_prot =
3131 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3132 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3133 params.use_short_preamble =
3134 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3135 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3136 params.use_short_slot_time =
3137 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3138 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3139 params.basic_rates =
3140 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3141 params.basic_rates_len =
3142 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3143 }
fd8aaaf3
FF		 3144 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3145 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3146 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3147 params.ht_opmode =
3148 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3149
4c476991
JB		 3150 if (!rdev->ops->change_bss)
3151 return -EOPNOTSUPP;
9f1ba906 3152
074ac8df 3153 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3154 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3155 return -EOPNOTSUPP;
3b85875a 3156
4c476991 3157 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3158}
3159
b54452b0 3160static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3161 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3162 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3163 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3164 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3165 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3166 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3167};
3168
3169static int parse_reg_rule(struct nlattr *tb[],
3170 struct ieee80211_reg_rule *reg_rule)
3171{
3172 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3173 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3174
3175 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3176 return -EINVAL;
3177 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3178 return -EINVAL;
3179 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3180 return -EINVAL;
3181 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3182 return -EINVAL;
3183 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3184 return -EINVAL;
3185
3186 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3187
3188 freq_range->start_freq_khz =
3189 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3190 freq_range->end_freq_khz =
3191 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3192 freq_range->max_bandwidth_khz =
3193 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3194
3195 power_rule->max_eirp =
3196 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3197
3198 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3199 power_rule->max_antenna_gain =
3200 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3201
3202 return 0;
3203}
3204
3205static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3206{
3207 int r;
3208 char *data = NULL;
3209
80778f18
LR		 3210 /*
3211 * You should only get this when cfg80211 hasn't yet initialized
3212 * completely when built-in to the kernel right between the time
3213 * window between nl80211_init() and regulatory_init(), if that is
3214 * even possible.
3215 */
3216 mutex_lock(&cfg80211_mutex);
3217 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3218 mutex_unlock(&cfg80211_mutex);
3219 return -EINPROGRESS;
80778f18 3220 }
fe33eb39 3221 mutex_unlock(&cfg80211_mutex);
80778f18 3222
fe33eb39
LR		 3223 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3224 return -EINVAL;
b2e1b302
LR		 3225
3226 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3227
fe33eb39
LR		 3228 r = regulatory_hint_user(data);
3229
b2e1b302
LR		 3230 return r;
3231}
3232
24bdd9f4 3233static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3234 struct genl_info *info)
93da9cc1 3235{
4c476991 3236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3237 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3238 struct wireless_dev *wdev = dev->ieee80211_ptr;
3239 struct mesh_config cur_params;
3240 int err = 0;
93da9cc1 3241 void *hdr;
3242 struct nlattr *pinfoattr;
3243 struct sk_buff *msg;
3244
29cbe68c
JB		 3245 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3246 return -EOPNOTSUPP;
3247
24bdd9f4 3248 if (!rdev->ops->get_mesh_config)
4c476991 3249 return -EOPNOTSUPP;
f3f92586 3250
29cbe68c
JB		 3251 wdev_lock(wdev);
3252 /* If not connected, get default parameters */
3253 if (!wdev->mesh_id_len)
3254 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3255 else
24bdd9f4 3256 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3257 &cur_params);
3258 wdev_unlock(wdev);
3259
93da9cc1 3260 if (err)
4c476991 3261 return err;
93da9cc1 3262
3263 /* Draw up a netlink message to send back */
fd2120ca 3264 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3265 if (!msg)
3266 return -ENOMEM;
93da9cc1 3267 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3268 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3269 if (!hdr)
efe1cf0c 3270 goto out;
24bdd9f4 3271 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3272 if (!pinfoattr)
3273 goto nla_put_failure;
3274 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3275 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3276 cur_params.dot11MeshRetryTimeout);
3277 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3278 cur_params.dot11MeshConfirmTimeout);
3279 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3280 cur_params.dot11MeshHoldingTimeout);
3281 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3282 cur_params.dot11MeshMaxPeerLinks);
3283 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3284 cur_params.dot11MeshMaxRetries);
3285 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3286 cur_params.dot11MeshTTL);
45904f21
JC		 3287 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3288 cur_params.element_ttl);
93da9cc1 3289 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3290 cur_params.auto_open_plinks);
3291 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3292 cur_params.dot11MeshHWMPmaxPREQretries);
3293 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3294 cur_params.path_refresh_time);
3295 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3296 cur_params.min_discovery_timeout);
3297 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3298 cur_params.dot11MeshHWMPactivePathTimeout);
3299 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3300 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3301 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3302 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3303 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3304 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3305 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3306 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3307 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3308 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3309 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3310 cur_params.dot11MeshGateAnnouncementProtocol);
94f90656
CYY		 3311 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3312 cur_params.dot11MeshForwarding);
55335137
AN		 3313 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3314 cur_params.rssi_threshold);
93da9cc1 3315 nla_nest_end(msg, pinfoattr);
3316 genlmsg_end(msg, hdr);
4c476991 3317 return genlmsg_reply(msg, info);
93da9cc1 3318
3b85875a 3319 nla_put_failure:
93da9cc1 3320 genlmsg_cancel(msg, hdr);
efe1cf0c 3321 out:
d080e275 3322 nlmsg_free(msg);
4c476991 3323 return -ENOBUFS;
93da9cc1 3324}
3325
b54452b0 3326static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3327 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3328 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3329 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3330 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3331 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3332 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3333 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3334 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3335
3336 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3337 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3338 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3339 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3340 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3341 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3342 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3343 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3344 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3345 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3346 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
55335137 3347 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
93da9cc1 3348};
3349
c80d545d
JC		 3350static const struct nla_policy
3351 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3352 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3353 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3354 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3355 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3356 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3357 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3358};
3359
24bdd9f4 3360static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3361 struct mesh_config *cfg,
3362 u32 *mask_out)
93da9cc1 3363{
93da9cc1 3364 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3365 u32 mask = 0;
93da9cc1 3366
bd90fdcc
JB		 3367#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3368do {\
3369 if (table[attr_num]) {\
3370 cfg->param = nla_fn(table[attr_num]); \
3371 mask |= (1 << (attr_num - 1)); \
3372 } \
3373} while (0);\
3374
3375
24bdd9f4 3376 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3377 return -EINVAL;
3378 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3379 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3380 nl80211_meshconf_params_policy))
93da9cc1 3381 return -EINVAL;
3382
93da9cc1 3383 /* This makes sure that there aren't more than 32 mesh config
3384 * parameters (otherwise our bitfield scheme would not work.) */
3385 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3386
3387 /* Fill in the params struct */
93da9cc1 3388 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3389 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3390 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3391 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3392 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3393 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3394 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3395 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3396 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3397 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3398 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3399 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3400 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3401 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3403 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3405 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3406 nla_get_u8);
3407 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3408 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3409 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3410 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3411 nla_get_u16);
3412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3413 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3414 nla_get_u32);
3415 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3416 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3417 nla_get_u16);
dca7e943
TP		 3418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3419 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3420 nla_get_u16);
93da9cc1 3421 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3422 dot11MeshHWMPnetDiameterTraversalTime,
3423 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3424 nla_get_u16);
63c5723b
RP		 3425 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3426 dot11MeshHWMPRootMode, mask,
3427 NL80211_MESHCONF_HWMP_ROOTMODE,
3428 nla_get_u8);
0507e159
JC		 3429 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3430 dot11MeshHWMPRannInterval, mask,
3431 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3432 nla_get_u16);
16dd7267
JC		 3433 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3434 dot11MeshGateAnnouncementProtocol, mask,
3435 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3436 nla_get_u8);
94f90656
CYY		 3437 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3438 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
55335137
AN		 3439 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3440 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
bd90fdcc
JB		 3441 if (mask_out)
3442 *mask_out = mask;
c80d545d 3443
bd90fdcc
JB		 3444 return 0;
3445
3446#undef FILL_IN_MESH_PARAM_IF_SET
3447}
3448
c80d545d
JC		 3449static int nl80211_parse_mesh_setup(struct genl_info *info,
3450 struct mesh_setup *setup)
3451{
3452 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3453
3454 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3455 return -EINVAL;
3456 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3457 info->attrs[NL80211_ATTR_MESH_SETUP],
3458 nl80211_mesh_setup_params_policy))
3459 return -EINVAL;
3460
3461 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3462 setup->path_sel_proto =
3463 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3464 IEEE80211_PATH_PROTOCOL_VENDOR :
3465 IEEE80211_PATH_PROTOCOL_HWMP;
3466
3467 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3468 setup->path_metric =
3469 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3470 IEEE80211_PATH_METRIC_VENDOR :
3471 IEEE80211_PATH_METRIC_AIRTIME;
3472
581a8b0f
JC		 3473
3474 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3475 struct nlattr *ieattr =
581a8b0f 3476 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3477 if (!is_valid_ie_attr(ieattr))
3478 return -EINVAL;
581a8b0f
JC		 3479 setup->ie = nla_data(ieattr);
3480 setup->ie_len = nla_len(ieattr);
c80d545d 3481 }
b130e5ce
JC		 3482 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3483 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3484
3485 return 0;
3486}
3487
24bdd9f4 3488static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3489 struct genl_info *info)
bd90fdcc
JB		 3490{
3491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3492 struct net_device *dev = info->user_ptr[1];
29cbe68c 3493 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3494 struct mesh_config cfg;
3495 u32 mask;
3496 int err;
3497
29cbe68c
JB		 3498 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3499 return -EOPNOTSUPP;
3500
24bdd9f4 3501 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3502 return -EOPNOTSUPP;
3503
24bdd9f4 3504 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3505 if (err)
3506 return err;
3507
29cbe68c
JB		 3508 wdev_lock(wdev);
3509 if (!wdev->mesh_id_len)
3510 err = -ENOLINK;
3511
3512 if (!err)
24bdd9f4 3513 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3514 mask, &cfg);
3515
3516 wdev_unlock(wdev);
3517
3518 return err;
93da9cc1 3519}
3520
f130347c
LR		 3521static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3522{
3523 struct sk_buff *msg;
3524 void *hdr = NULL;
3525 struct nlattr *nl_reg_rules;
3526 unsigned int i;
3527 int err = -EINVAL;
3528
a1794390 3529 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3530
3531 if (!cfg80211_regdomain)
3532 goto out;
3533
fd2120ca 3534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3535 if (!msg) {
3536 err = -ENOBUFS;
3537 goto out;
3538 }
3539
3540 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3541 NL80211_CMD_GET_REG);
3542 if (!hdr)
efe1cf0c 3543 goto put_failure;
f130347c
LR		 3544
3545 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3546 cfg80211_regdomain->alpha2);
8b60b078
LR		 3547 if (cfg80211_regdomain->dfs_region)
3548 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3549 cfg80211_regdomain->dfs_region);
f130347c
LR		 3550
3551 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3552 if (!nl_reg_rules)
3553 goto nla_put_failure;
3554
3555 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3556 struct nlattr *nl_reg_rule;
3557 const struct ieee80211_reg_rule *reg_rule;
3558 const struct ieee80211_freq_range *freq_range;
3559 const struct ieee80211_power_rule *power_rule;
3560
3561 reg_rule = &cfg80211_regdomain->reg_rules[i];
3562 freq_range = &reg_rule->freq_range;
3563 power_rule = &reg_rule->power_rule;
3564
3565 nl_reg_rule = nla_nest_start(msg, i);
3566 if (!nl_reg_rule)
3567 goto nla_put_failure;
3568
3569 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3570 reg_rule->flags);
3571 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3572 freq_range->start_freq_khz);
3573 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3574 freq_range->end_freq_khz);
3575 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3576 freq_range->max_bandwidth_khz);
3577 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3578 power_rule->max_antenna_gain);
3579 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3580 power_rule->max_eirp);
3581
3582 nla_nest_end(msg, nl_reg_rule);
3583 }
3584
3585 nla_nest_end(msg, nl_reg_rules);
3586
3587 genlmsg_end(msg, hdr);
134e6375 3588 err = genlmsg_reply(msg, info);
f130347c
LR		 3589 goto out;
3590
3591nla_put_failure:
3592 genlmsg_cancel(msg, hdr);
efe1cf0c 3593put_failure:
d080e275 3594 nlmsg_free(msg);
f130347c
LR		 3595 err = -EMSGSIZE;
3596out:
a1794390 3597 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3598 return err;
3599}
3600
b2e1b302
LR		 3601static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3602{
3603 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3604 struct nlattr *nl_reg_rule;
3605 char *alpha2 = NULL;
3606 int rem_reg_rules = 0, r = 0;
3607 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3608 u8 dfs_region = 0;
b2e1b302
LR		 3609 struct ieee80211_regdomain *rd = NULL;
3610
3611 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3612 return -EINVAL;
3613
3614 if (!info->attrs[NL80211_ATTR_REG_RULES])
3615 return -EINVAL;
3616
3617 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3618
8b60b078
LR		 3619 if (info->attrs[NL80211_ATTR_DFS_REGION])
3620 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3621
b2e1b302
LR		 3622 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3623 rem_reg_rules) {
3624 num_rules++;
3625 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3626 return -EINVAL;
b2e1b302
LR		 3627 }
3628
61405e97
LR		 3629 mutex_lock(&cfg80211_mutex);
3630
d0e18f83
LR		 3631 if (!reg_is_valid_request(alpha2)) {
3632 r = -EINVAL;
3633 goto bad_reg;
3634 }
b2e1b302
LR		 3635
3636 size_of_regd = sizeof(struct ieee80211_regdomain) +
3637 (num_rules * sizeof(struct ieee80211_reg_rule));
3638
3639 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3640 if (!rd) {
3641 r = -ENOMEM;
3642 goto bad_reg;
3643 }
b2e1b302
LR		 3644
3645 rd->n_reg_rules = num_rules;
3646 rd->alpha2[0] = alpha2[0];
3647 rd->alpha2[1] = alpha2[1];
3648
8b60b078
LR		 3649 /*
3650 * Disable DFS master mode if the DFS region was
3651 * not supported or known on this kernel.
3652 */
3653 if (reg_supported_dfs_region(dfs_region))
3654 rd->dfs_region = dfs_region;
3655
b2e1b302
LR		 3656 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3657 rem_reg_rules) {
3658 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3659 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3660 reg_rule_policy);
3661 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3662 if (r)
3663 goto bad_reg;
3664
3665 rule_idx++;
3666
d0e18f83
LR		 3667 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3668 r = -EINVAL;
b2e1b302 3669 goto bad_reg;
d0e18f83 3670 }
b2e1b302
LR		 3671 }
3672
3673 BUG_ON(rule_idx != num_rules);
3674
b2e1b302 3675 r = set_regdom(rd);
61405e97 3676
a1794390 3677 mutex_unlock(&cfg80211_mutex);
d0e18f83 3678
b2e1b302
LR		 3679 return r;
3680
d2372b31 3681 bad_reg:
61405e97 3682 mutex_unlock(&cfg80211_mutex);
b2e1b302 3683 kfree(rd);
d0e18f83 3684 return r;
b2e1b302
LR		 3685}
3686
83f5e2cf
JB		 3687static int validate_scan_freqs(struct nlattr *freqs)
3688{
3689 struct nlattr *attr1, *attr2;
3690 int n_channels = 0, tmp1, tmp2;
3691
3692 nla_for_each_nested(attr1, freqs, tmp1) {
3693 n_channels++;
3694 /*
3695 * Some hardware has a limited channel list for
3696 * scanning, and it is pretty much nonsensical
3697 * to scan for a channel twice, so disallow that
3698 * and don't require drivers to check that the
3699 * channel list they get isn't longer than what
3700 * they can scan, as long as they can scan all
3701 * the channels they registered at once.
3702 */
3703 nla_for_each_nested(attr2, freqs, tmp2)
3704 if (attr1 != attr2 &&
3705 nla_get_u32(attr1) == nla_get_u32(attr2))
3706 return 0;
3707 }
3708
3709 return n_channels;
3710}
3711
2a519311
JB		 3712static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3713{
4c476991
JB		 3714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3715 struct net_device *dev = info->user_ptr[1];
2a519311 3716 struct cfg80211_scan_request *request;
2a519311
JB		 3717 struct nlattr *attr;
3718 struct wiphy *wiphy;
83f5e2cf 3719 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3720 size_t ie_len;
2a519311 3721
f4a11bb0
JB		 3722 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3723 return -EINVAL;
3724
79c97e97 3725 wiphy = &rdev->wiphy;
2a519311 3726
4c476991
JB		 3727 if (!rdev->ops->scan)
3728 return -EOPNOTSUPP;
2a519311 3729
4c476991
JB		 3730 if (rdev->scan_req)
3731 return -EBUSY;
2a519311
JB		 3732
3733 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3734 n_channels = validate_scan_freqs(
3735 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3736 if (!n_channels)
3737 return -EINVAL;
2a519311 3738 } else {
34850ab2 3739 enum ieee80211_band band;
83f5e2cf
JB		 3740 n_channels = 0;
3741
2a519311
JB		 3742 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3743 if (wiphy->bands[band])
3744 n_channels += wiphy->bands[band]->n_channels;
3745 }
3746
3747 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3748 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3749 n_ssids++;
3750
4c476991
JB		 3751 if (n_ssids > wiphy->max_scan_ssids)
3752 return -EINVAL;
2a519311 3753
70692ad2
JM		 3754 if (info->attrs[NL80211_ATTR_IE])
3755 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3756 else
3757 ie_len = 0;
3758
4c476991
JB		 3759 if (ie_len > wiphy->max_scan_ie_len)
3760 return -EINVAL;
18a83659 3761
2a519311 3762 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3763 + sizeof(*request->ssids) * n_ssids
3764 + sizeof(*request->channels) * n_channels
70692ad2 3765 + ie_len, GFP_KERNEL);
4c476991
JB		 3766 if (!request)
3767 return -ENOMEM;
2a519311 3768
2a519311 3769 if (n_ssids)
5ba63533 3770 request->ssids = (void *)&request->channels[n_channels];
2a519311 3771 request->n_ssids = n_ssids;
70692ad2
JM		 3772 if (ie_len) {
3773 if (request->ssids)
3774 request->ie = (void *)(request->ssids + n_ssids);
3775 else
3776 request->ie = (void *)(request->channels + n_channels);
3777 }
2a519311 3778
584991dc 3779 i = 0;
2a519311
JB		 3780 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3781 /* user specified, bail out if channel not found */
2a519311 3782 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3783 struct ieee80211_channel *chan;
3784
3785 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3786
3787 if (!chan) {
2a519311
JB		 3788 err = -EINVAL;
3789 goto out_free;
3790 }
584991dc
JB		 3791
3792 /* ignore disabled channels */
3793 if (chan->flags & IEEE80211_CHAN_DISABLED)
3794 continue;
3795
3796 request->channels[i] = chan;
2a519311
JB		 3797 i++;
3798 }
3799 } else {
34850ab2
JB		 3800 enum ieee80211_band band;
3801
2a519311 3802 /* all channels */
2a519311
JB		 3803 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3804 int j;
3805 if (!wiphy->bands[band])
3806 continue;
3807 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3808 struct ieee80211_channel *chan;
3809
3810 chan = &wiphy->bands[band]->channels[j];
3811
3812 if (chan->flags & IEEE80211_CHAN_DISABLED)
3813 continue;
3814
3815 request->channels[i] = chan;
2a519311
JB		 3816 i++;
3817 }
3818 }
3819 }
3820
584991dc
JB		 3821 if (!i) {
3822 err = -EINVAL;
3823 goto out_free;
3824 }
3825
3826 request->n_channels = i;
3827
2a519311
JB		 3828 i = 0;
3829 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3830 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3831 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3832 err = -EINVAL;
3833 goto out_free;
3834 }
57a27e1d 3835 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3836 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3837 i++;
3838 }
3839 }
3840
70692ad2
JM		 3841 if (info->attrs[NL80211_ATTR_IE]) {
3842 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3843 memcpy((void *)request->ie,
3844 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3845 request->ie_len);
3846 }
3847
34850ab2 3848 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3849 if (wiphy->bands[i])
3850 request->rates[i] =
3851 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3852
3853 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3854 nla_for_each_nested(attr,
3855 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3856 tmp) {
3857 enum ieee80211_band band = nla_type(attr);
3858
84404623 3859 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3860 err = -EINVAL;
3861 goto out_free;
3862 }
3863 err = ieee80211_get_ratemask(wiphy->bands[band],
3864 nla_data(attr),
3865 nla_len(attr),
3866 &request->rates[band]);
3867 if (err)
3868 goto out_free;
3869 }
3870 }
3871
e9f935e3
RM		 3872 request->no_cck =
3873 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3874
463d0183 3875 request->dev = dev;
79c97e97 3876 request->wiphy = &rdev->wiphy;
2a519311 3877
79c97e97
JB		 3878 rdev->scan_req = request;
3879 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3880
463d0183 3881 if (!err) {
79c97e97 3882 nl80211_send_scan_start(rdev, dev);
463d0183 3883 dev_hold(dev);
4c476991 3884 } else {
2a519311 3885 out_free:
79c97e97 3886 rdev->scan_req = NULL;
2a519311
JB		 3887 kfree(request);
3888 }
3b85875a 3889
2a519311
JB		 3890 return err;
3891}
3892
807f8a8c
LC		 3893static int nl80211_start_sched_scan(struct sk_buff *skb,
3894 struct genl_info *info)
3895{
3896 struct cfg80211_sched_scan_request *request;
3897 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3898 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3899 struct nlattr *attr;
3900 struct wiphy *wiphy;
a1f1c21c 3901 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3902 u32 interval;
807f8a8c
LC		 3903 enum ieee80211_band band;
3904 size_t ie_len;
a1f1c21c 3905 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3906
3907 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3908 !rdev->ops->sched_scan_start)
3909 return -EOPNOTSUPP;
3910
3911 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3912 return -EINVAL;
3913
bbe6ad6d
LC		 3914 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3915 return -EINVAL;
3916
3917 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3918 if (interval == 0)
3919 return -EINVAL;
3920
807f8a8c
LC		 3921 wiphy = &rdev->wiphy;
3922
3923 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3924 n_channels = validate_scan_freqs(
3925 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3926 if (!n_channels)
3927 return -EINVAL;
3928 } else {
3929 n_channels = 0;
3930
3931 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3932 if (wiphy->bands[band])
3933 n_channels += wiphy->bands[band]->n_channels;
3934 }
3935
3936 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3937 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3938 tmp)
3939 n_ssids++;
3940
93b6aa69 3941 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3942 return -EINVAL;
3943
a1f1c21c
LC		 3944 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3945 nla_for_each_nested(attr,
3946 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3947 tmp)
3948 n_match_sets++;
3949
3950 if (n_match_sets > wiphy->max_match_sets)
3951 return -EINVAL;
3952
807f8a8c
LC		 3953 if (info->attrs[NL80211_ATTR_IE])
3954 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3955 else
3956 ie_len = 0;
3957
5a865bad 3958 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3959 return -EINVAL;
3960
c10841ca
LC		 3961 mutex_lock(&rdev->sched_scan_mtx);
3962
3963 if (rdev->sched_scan_req) {
3964 err = -EINPROGRESS;
3965 goto out;
3966 }
3967
807f8a8c 3968 request = kzalloc(sizeof(*request)
a2cd43c5 3969 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3970 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3971 + sizeof(*request->channels) * n_channels
807f8a8c 3972 + ie_len, GFP_KERNEL);
c10841ca
LC		 3973 if (!request) {
3974 err = -ENOMEM;
3975 goto out;
3976 }
807f8a8c
LC		 3977
3978 if (n_ssids)
3979 request->ssids = (void *)&request->channels[n_channels];
3980 request->n_ssids = n_ssids;
3981 if (ie_len) {
3982 if (request->ssids)
3983 request->ie = (void *)(request->ssids + n_ssids);
3984 else
3985 request->ie = (void *)(request->channels + n_channels);
3986 }
3987
a1f1c21c
LC		 3988 if (n_match_sets) {
3989 if (request->ie)
3990 request->match_sets = (void *)(request->ie + ie_len);
3991 else if (request->ssids)
3992 request->match_sets =
3993 (void *)(request->ssids + n_ssids);
3994 else
3995 request->match_sets =
3996 (void *)(request->channels + n_channels);
3997 }
3998 request->n_match_sets = n_match_sets;
3999
807f8a8c
LC		 4000 i = 0;
4001 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4002 /* user specified, bail out if channel not found */
4003 nla_for_each_nested(attr,
4004 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4005 tmp) {
4006 struct ieee80211_channel *chan;
4007
4008 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4009
4010 if (!chan) {
4011 err = -EINVAL;
4012 goto out_free;
4013 }
4014
4015 /* ignore disabled channels */
4016 if (chan->flags & IEEE80211_CHAN_DISABLED)
4017 continue;
4018
4019 request->channels[i] = chan;
4020 i++;
4021 }
4022 } else {
4023 /* all channels */
4024 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4025 int j;
4026 if (!wiphy->bands[band])
4027 continue;
4028 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4029 struct ieee80211_channel *chan;
4030
4031 chan = &wiphy->bands[band]->channels[j];
4032
4033 if (chan->flags & IEEE80211_CHAN_DISABLED)
4034 continue;
4035
4036 request->channels[i] = chan;
4037 i++;
4038 }
4039 }
4040 }
4041
4042 if (!i) {
4043 err = -EINVAL;
4044 goto out_free;
4045 }
4046
4047 request->n_channels = i;
4048
4049 i = 0;
4050 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4051 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4052 tmp) {
57a27e1d 4053 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4054 err = -EINVAL;
4055 goto out_free;
4056 }
57a27e1d 4057 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4058 memcpy(request->ssids[i].ssid, nla_data(attr),
4059 nla_len(attr));
807f8a8c
LC		 4060 i++;
4061 }
4062 }
4063
a1f1c21c
LC		 4064 i = 0;
4065 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4066 nla_for_each_nested(attr,
4067 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4068 tmp) {
4069 struct nlattr *ssid;
4070
4071 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4072 nla_data(attr), nla_len(attr),
4073 nl80211_match_policy);
4074 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4075 if (ssid) {
4076 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4077 err = -EINVAL;
4078 goto out_free;
4079 }
4080 memcpy(request->match_sets[i].ssid.ssid,
4081 nla_data(ssid), nla_len(ssid));
4082 request->match_sets[i].ssid.ssid_len =
4083 nla_len(ssid);
4084 }
4085 i++;
4086 }
4087 }
4088
807f8a8c
LC		 4089 if (info->attrs[NL80211_ATTR_IE]) {
4090 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4091 memcpy((void *)request->ie,
4092 nla_data(info->attrs[NL80211_ATTR_IE]),
4093 request->ie_len);
4094 }
4095
4096 request->dev = dev;
4097 request->wiphy = &rdev->wiphy;
bbe6ad6d 4098 request->interval = interval;
807f8a8c
LC		 4099
4100 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4101 if (!err) {
4102 rdev->sched_scan_req = request;
4103 nl80211_send_sched_scan(rdev, dev,
4104 NL80211_CMD_START_SCHED_SCAN);
4105 goto out;
4106 }
4107
4108out_free:
4109 kfree(request);
4110out:
c10841ca 4111 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4112 return err;
4113}
4114
4115static int nl80211_stop_sched_scan(struct sk_buff *skb,
4116 struct genl_info *info)
4117{
4118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4119 int err;
807f8a8c
LC		 4120
4121 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4122 !rdev->ops->sched_scan_stop)
4123 return -EOPNOTSUPP;
4124
c10841ca
LC		 4125 mutex_lock(&rdev->sched_scan_mtx);
4126 err = __cfg80211_stop_sched_scan(rdev, false);
4127 mutex_unlock(&rdev->sched_scan_mtx);
4128
4129 return err;
807f8a8c
LC		 4130}
4131
9720bb3a
JB		 4132static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4133 u32 seq, int flags,
2a519311 4134 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4135 struct wireless_dev *wdev,
4136 struct cfg80211_internal_bss *intbss)
2a519311 4137{
48ab905d 4138 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4139 void *hdr;
4140 struct nlattr *bss;
48ab905d
JB		 4141
4142 ASSERT_WDEV_LOCK(wdev);
2a519311 4143
9720bb3a 4144 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4145 NL80211_CMD_NEW_SCAN_RESULTS);
4146 if (!hdr)
4147 return -1;
4148
9720bb3a
JB		 4149 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4150
f5ea9120 4151 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4152 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4153
4154 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4155 if (!bss)
4156 goto nla_put_failure;
4157 if (!is_zero_ether_addr(res->bssid))
4158 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4159 if (res->information_elements && res->len_information_elements)
4160 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4161 res->len_information_elements,
4162 res->information_elements);
34a6eddb
JM		 4163 if (res->beacon_ies && res->len_beacon_ies &&
4164 res->beacon_ies != res->information_elements)
4165 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4166 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4167 if (res->tsf)
4168 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4169 if (res->beacon_interval)
4170 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4171 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4172 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4173 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4174 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4175
77965c97 4176 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4177 case CFG80211_SIGNAL_TYPE_MBM:
4178 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4179 break;
4180 case CFG80211_SIGNAL_TYPE_UNSPEC:
4181 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4182 break;
4183 default:
4184 break;
4185 }
4186
48ab905d 4187 switch (wdev->iftype) {
074ac8df 4188 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4189 case NL80211_IFTYPE_STATION:
4190 if (intbss == wdev->current_bss)
4191 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4192 NL80211_BSS_STATUS_ASSOCIATED);
48ab905d
JB		 4193 break;
4194 case NL80211_IFTYPE_ADHOC:
4195 if (intbss == wdev->current_bss)
4196 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4197 NL80211_BSS_STATUS_IBSS_JOINED);
4198 break;
4199 default:
4200 break;
4201 }
4202
2a519311
JB		 4203 nla_nest_end(msg, bss);
4204
4205 return genlmsg_end(msg, hdr);
4206
4207 nla_put_failure:
4208 genlmsg_cancel(msg, hdr);
4209 return -EMSGSIZE;
4210}
4211
4212static int nl80211_dump_scan(struct sk_buff *skb,
4213 struct netlink_callback *cb)
4214{
48ab905d
JB		 4215 struct cfg80211_registered_device *rdev;
4216 struct net_device *dev;
2a519311 4217 struct cfg80211_internal_bss *scan;
48ab905d 4218 struct wireless_dev *wdev;
2a519311
JB		 4219 int start = cb->args[1], idx = 0;
4220 int err;
4221
67748893
JB		 4222 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4223 if (err)
4224 return err;
2a519311 4225
48ab905d 4226 wdev = dev->ieee80211_ptr;
2a519311 4227
48ab905d
JB		 4228 wdev_lock(wdev);
4229 spin_lock_bh(&rdev->bss_lock);
4230 cfg80211_bss_expire(rdev);
4231
9720bb3a
JB		 4232 cb->seq = rdev->bss_generation;
4233
48ab905d 4234 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4235 if (++idx <= start)
4236 continue;
9720bb3a 4237 if (nl80211_send_bss(skb, cb,
2a519311 4238 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4239 rdev, wdev, scan) < 0) {
2a519311 4240 idx--;
67748893 4241 break;
2a519311
JB		 4242 }
4243 }
4244
48ab905d
JB		 4245 spin_unlock_bh(&rdev->bss_lock);
4246 wdev_unlock(wdev);
2a519311
JB		 4247
4248 cb->args[1] = idx;
67748893 4249 nl80211_finish_netdev_dump(rdev);
2a519311 4250
67748893 4251 return skb->len;
2a519311
JB		 4252}
4253
61fa713c
HS		 4254static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4255 int flags, struct net_device *dev,
4256 struct survey_info *survey)
4257{
4258 void *hdr;
4259 struct nlattr *infoattr;
4260
61fa713c
HS		 4261 hdr = nl80211hdr_put(msg, pid, seq, flags,
4262 NL80211_CMD_NEW_SURVEY_RESULTS);
4263 if (!hdr)
4264 return -ENOMEM;
4265
4266 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4267
4268 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4269 if (!infoattr)
4270 goto nla_put_failure;
4271
4272 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4273 survey->channel->center_freq);
4274 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4275 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4276 survey->noise);
17e5a808
FF		 4277 if (survey->filled & SURVEY_INFO_IN_USE)
4278 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4279 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4280 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4281 survey->channel_time);
4282 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4283 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4284 survey->channel_time_busy);
4285 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4286 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4287 survey->channel_time_ext_busy);
4288 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4289 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4290 survey->channel_time_rx);
4291 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4292 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4293 survey->channel_time_tx);
61fa713c
HS		 4294
4295 nla_nest_end(msg, infoattr);
4296
4297 return genlmsg_end(msg, hdr);
4298
4299 nla_put_failure:
4300 genlmsg_cancel(msg, hdr);
4301 return -EMSGSIZE;
4302}
4303
4304static int nl80211_dump_survey(struct sk_buff *skb,
4305 struct netlink_callback *cb)
4306{
4307 struct survey_info survey;
4308 struct cfg80211_registered_device *dev;
4309 struct net_device *netdev;
61fa713c
HS		 4310 int survey_idx = cb->args[1];
4311 int res;
4312
67748893
JB		 4313 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4314 if (res)
4315 return res;
61fa713c
HS		 4316
4317 if (!dev->ops->dump_survey) {
4318 res = -EOPNOTSUPP;
4319 goto out_err;
4320 }
4321
4322 while (1) {
180cdc79
LR		 4323 struct ieee80211_channel *chan;
4324
61fa713c
HS		 4325 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4326 &survey);
4327 if (res == -ENOENT)
4328 break;
4329 if (res)
4330 goto out_err;
4331
180cdc79
LR		 4332 /* Survey without a channel doesn't make sense */
4333 if (!survey.channel) {
4334 res = -EINVAL;
4335 goto out;
4336 }
4337
4338 chan = ieee80211_get_channel(&dev->wiphy,
4339 survey.channel->center_freq);
4340 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4341 survey_idx++;
4342 continue;
4343 }
4344
61fa713c
HS		 4345 if (nl80211_send_survey(skb,
4346 NETLINK_CB(cb->skb).pid,
4347 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4348 netdev,
4349 &survey) < 0)
4350 goto out;
4351 survey_idx++;
4352 }
4353
4354 out:
4355 cb->args[1] = survey_idx;
4356 res = skb->len;
4357 out_err:
67748893 4358 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4359 return res;
4360}
4361
255e737e
JM		 4362static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4363{
b23aa676
SO		 4364 return auth_type <= NL80211_AUTHTYPE_MAX;
4365}
4366
4367static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4368{
4369 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4370 NL80211_WPA_VERSION_2));
4371}
4372
636a5d36
JM		 4373static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4374{
4c476991
JB		 4375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4376 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4377 struct ieee80211_channel *chan;
4378 const u8 *bssid, *ssid, *ie = NULL;
4379 int err, ssid_len, ie_len = 0;
4380 enum nl80211_auth_type auth_type;
fffd0934 4381 struct key_parse key;
d5cdfacb 4382 bool local_state_change;
636a5d36 4383
f4a11bb0
JB		 4384 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4385 return -EINVAL;
4386
4387 if (!info->attrs[NL80211_ATTR_MAC])
4388 return -EINVAL;
4389
1778092e
JM		 4390 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4391 return -EINVAL;
4392
19957bb3
JB		 4393 if (!info->attrs[NL80211_ATTR_SSID])
4394 return -EINVAL;
4395
4396 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4397 return -EINVAL;
4398
fffd0934
JB		 4399 err = nl80211_parse_key(info, &key);
4400 if (err)
4401 return err;
4402
4403 if (key.idx >= 0) {
e31b8213
JB		 4404 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4405 return -EINVAL;
fffd0934
JB		 4406 if (!key.p.key || !key.p.key_len)
4407 return -EINVAL;
4408 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4409 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4410 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4411 key.p.key_len != WLAN_KEY_LEN_WEP104))
4412 return -EINVAL;
4413 if (key.idx > 4)
4414 return -EINVAL;
4415 } else {
4416 key.p.key_len = 0;
4417 key.p.key = NULL;
4418 }
4419
afea0b7a
JB		 4420 if (key.idx >= 0) {
4421 int i;
4422 bool ok = false;
4423 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4424 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4425 ok = true;
4426 break;
4427 }
4428 }
4c476991
JB		 4429 if (!ok)
4430 return -EINVAL;
afea0b7a
JB		 4431 }
4432
4c476991
JB		 4433 if (!rdev->ops->auth)
4434 return -EOPNOTSUPP;
636a5d36 4435
074ac8df 4436 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4437 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4438 return -EOPNOTSUPP;
eec60b03 4439
19957bb3 4440 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4441 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4442 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4443 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4444 return -EINVAL;
636a5d36 4445
19957bb3
JB		 4446 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4447 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4448
4449 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4450 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4451 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4452 }
4453
19957bb3 4454 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4455 if (!nl80211_valid_auth_type(auth_type))
4456 return -EINVAL;
636a5d36 4457
d5cdfacb
JM		 4458 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4459
95de817b
JB		 4460 /*
4461 * Since we no longer track auth state, ignore
4462 * requests to only change local state.
4463 */
4464 if (local_state_change)
4465 return 0;
4466
4c476991
JB		 4467 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4468 ssid, ssid_len, ie, ie_len,
95de817b 4469 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4470}
4471
c0692b8f
JB		 4472static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4473 struct genl_info *info,
3dc27d25
JB		 4474 struct cfg80211_crypto_settings *settings,
4475 int cipher_limit)
b23aa676 4476{
c0b2bbd8
JB		 4477 memset(settings, 0, sizeof(*settings));
4478
b23aa676
SO		 4479 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4480
c0692b8f
JB		 4481 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4482 u16 proto;
4483 proto = nla_get_u16(
4484 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4485 settings->control_port_ethertype = cpu_to_be16(proto);
4486 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4487 proto != ETH_P_PAE)
4488 return -EINVAL;
4489 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4490 settings->control_port_no_encrypt = true;
4491 } else
4492 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4493
b23aa676
SO		 4494 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4495 void *data;
4496 int len, i;
4497
4498 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4499 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4500 settings->n_ciphers_pairwise = len / sizeof(u32);
4501
4502 if (len % sizeof(u32))
4503 return -EINVAL;
4504
3dc27d25 4505 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4506 return -EINVAL;
4507
4508 memcpy(settings->ciphers_pairwise, data, len);
4509
4510 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4511 if (!cfg80211_supported_cipher_suite(
4512 &rdev->wiphy,
b23aa676
SO		 4513 settings->ciphers_pairwise[i]))
4514 return -EINVAL;
4515 }
4516
4517 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4518 settings->cipher_group =
4519 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4520 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4521 settings->cipher_group))
b23aa676
SO		 4522 return -EINVAL;
4523 }
4524
4525 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4526 settings->wpa_versions =
4527 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4528 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4529 return -EINVAL;
4530 }
4531
4532 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4533 void *data;
6d30240e 4534 int len;
b23aa676
SO		 4535
4536 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4537 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4538 settings->n_akm_suites = len / sizeof(u32);
4539
4540 if (len % sizeof(u32))
4541 return -EINVAL;
4542
1b9ca027
JM		 4543 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4544 return -EINVAL;
4545
b23aa676 4546 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4547 }
4548
4549 return 0;
4550}
4551
636a5d36
JM		 4552static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4553{
4c476991
JB		 4554 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4555 struct net_device *dev = info->user_ptr[1];
19957bb3 4556 struct cfg80211_crypto_settings crypto;
f444de05 4557 struct ieee80211_channel *chan;
3e5d7649 4558 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4559 int err, ssid_len, ie_len = 0;
4560 bool use_mfp = false;
7e7c8926
BG		 4561 u32 flags = 0;
4562 struct ieee80211_ht_cap *ht_capa = NULL;
4563 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4564
f4a11bb0
JB		 4565 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4566 return -EINVAL;
4567
4568 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4569 !info->attrs[NL80211_ATTR_SSID] ||
4570 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4571 return -EINVAL;
4572
4c476991
JB		 4573 if (!rdev->ops->assoc)
4574 return -EOPNOTSUPP;
636a5d36 4575
074ac8df 4576 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4577 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4578 return -EOPNOTSUPP;
eec60b03 4579
19957bb3 4580 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4581
19957bb3
JB		 4582 chan = ieee80211_get_channel(&rdev->wiphy,
4583 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4584 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4585 return -EINVAL;
636a5d36 4586
19957bb3
JB		 4587 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4588 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4589
4590 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4591 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4592 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4593 }
4594
dc6382ce 4595 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4596 enum nl80211_mfp mfp =
dc6382ce 4597 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4598 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4599 use_mfp = true;
4c476991
JB		 4600 else if (mfp != NL80211_MFP_NO)
4601 return -EINVAL;
dc6382ce
JM		 4602 }
4603
3e5d7649
JB		 4604 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4605 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4606
7e7c8926
BG		 4607 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4608 flags |= ASSOC_REQ_DISABLE_HT;
4609
4610 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4611 ht_capa_mask =
4612 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4613
4614 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4615 if (!ht_capa_mask)
4616 return -EINVAL;
4617 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4618 }
4619
c0692b8f 4620 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4621 if (!err)
3e5d7649
JB		 4622 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4623 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4624 &crypto, flags, ht_capa,
4625 ht_capa_mask);
636a5d36 4626
636a5d36
JM		 4627 return err;
4628}
4629
4630static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4631{
4c476991
JB		 4632 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4633 struct net_device *dev = info->user_ptr[1];
19957bb3 4634 const u8 *ie = NULL, *bssid;
4c476991 4635 int ie_len = 0;
19957bb3 4636 u16 reason_code;
d5cdfacb 4637 bool local_state_change;
636a5d36 4638
f4a11bb0
JB		 4639 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4640 return -EINVAL;
4641
4642 if (!info->attrs[NL80211_ATTR_MAC])
4643 return -EINVAL;
4644
4645 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4646 return -EINVAL;
4647
4c476991
JB		 4648 if (!rdev->ops->deauth)
4649 return -EOPNOTSUPP;
636a5d36 4650
074ac8df 4651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4652 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4653 return -EOPNOTSUPP;
eec60b03 4654
19957bb3 4655 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4656
19957bb3
JB		 4657 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4658 if (reason_code == 0) {
f4a11bb0 4659 /* Reason Code 0 is reserved */
4c476991 4660 return -EINVAL;
255e737e 4661 }
636a5d36
JM		 4662
4663 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4664 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4665 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4666 }
4667
d5cdfacb
JM		 4668 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4669
4c476991
JB		 4670 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4671 local_state_change);
636a5d36
JM		 4672}
4673
4674static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4675{
4c476991
JB		 4676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4677 struct net_device *dev = info->user_ptr[1];
19957bb3 4678 const u8 *ie = NULL, *bssid;
4c476991 4679 int ie_len = 0;
19957bb3 4680 u16 reason_code;
d5cdfacb 4681 bool local_state_change;
636a5d36 4682
f4a11bb0
JB		 4683 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4684 return -EINVAL;
4685
4686 if (!info->attrs[NL80211_ATTR_MAC])
4687 return -EINVAL;
4688
4689 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4690 return -EINVAL;
4691
4c476991
JB		 4692 if (!rdev->ops->disassoc)
4693 return -EOPNOTSUPP;
636a5d36 4694
074ac8df 4695 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4696 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4697 return -EOPNOTSUPP;
eec60b03 4698
19957bb3 4699 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4700
19957bb3
JB		 4701 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4702 if (reason_code == 0) {
f4a11bb0 4703 /* Reason Code 0 is reserved */
4c476991 4704 return -EINVAL;
255e737e 4705 }
636a5d36
JM		 4706
4707 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4708 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4709 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4710 }
4711
d5cdfacb
JM		 4712 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4713
4c476991
JB		 4714 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4715 local_state_change);
636a5d36
JM		 4716}
4717
dd5b4cc7
FF		 4718static bool
4719nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4720 int mcast_rate[IEEE80211_NUM_BANDS],
4721 int rateval)
4722{
4723 struct wiphy *wiphy = &rdev->wiphy;
4724 bool found = false;
4725 int band, i;
4726
4727 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4728 struct ieee80211_supported_band *sband;
4729
4730 sband = wiphy->bands[band];
4731 if (!sband)
4732 continue;
4733
4734 for (i = 0; i < sband->n_bitrates; i++) {
4735 if (sband->bitrates[i].bitrate == rateval) {
4736 mcast_rate[band] = i + 1;
4737 found = true;
4738 break;
4739 }
4740 }
4741 }
4742
4743 return found;
4744}
4745
04a773ad
JB		 4746static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4747{
4c476991
JB		 4748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4749 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4750 struct cfg80211_ibss_params ibss;
4751 struct wiphy *wiphy;
fffd0934 4752 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4753 int err;
4754
8e30bc55
JB		 4755 memset(&ibss, 0, sizeof(ibss));
4756
04a773ad
JB		 4757 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4758 return -EINVAL;
4759
4760 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4761 !info->attrs[NL80211_ATTR_SSID] ||
4762 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4763 return -EINVAL;
4764
8e30bc55
JB		 4765 ibss.beacon_interval = 100;
4766
4767 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4768 ibss.beacon_interval =
4769 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4770 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4771 return -EINVAL;
4772 }
4773
4c476991
JB		 4774 if (!rdev->ops->join_ibss)
4775 return -EOPNOTSUPP;
04a773ad 4776
4c476991
JB		 4777 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4778 return -EOPNOTSUPP;
04a773ad 4779
79c97e97 4780 wiphy = &rdev->wiphy;
04a773ad 4781
39193498 4782 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4783 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4784
4785 if (!is_valid_ether_addr(ibss.bssid))
4786 return -EINVAL;
4787 }
04a773ad
JB		 4788 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4789 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4790
4791 if (info->attrs[NL80211_ATTR_IE]) {
4792 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4793 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4794 }
4795
54858ee5
AS		 4796 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4797 enum nl80211_channel_type channel_type;
4798
4799 channel_type = nla_get_u32(
4800 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4801 if (channel_type != NL80211_CHAN_NO_HT &&
4802 channel_type != NL80211_CHAN_HT20 &&
4803 channel_type != NL80211_CHAN_HT40MINUS &&
4804 channel_type != NL80211_CHAN_HT40PLUS)
4805 return -EINVAL;
4806
4807 if (channel_type != NL80211_CHAN_NO_HT &&
4808 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4809 return -EINVAL;
4810
4811 ibss.channel_type = channel_type;
4812 } else {
4813 ibss.channel_type = NL80211_CHAN_NO_HT;
4814 }
4815
4816 ibss.channel = rdev_freq_to_chan(rdev,
4817 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4818 ibss.channel_type);
04a773ad
JB		 4819 if (!ibss.channel ||
4820 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4821 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4822 return -EINVAL;
04a773ad 4823
54858ee5
AS		 4824 /* Both channels should be able to initiate communication */
4825 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4826 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4827 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4828 ibss.channel_type))
4829 return -EINVAL;
4830
04a773ad 4831 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4832 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4833
fbd2c8dc
TP		 4834 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4835 u8 *rates =
4836 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4837 int n_rates =
4838 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4839 struct ieee80211_supported_band *sband =
4840 wiphy->bands[ibss.channel->band];
fbd2c8dc 4841
34850ab2
JB		 4842 err = ieee80211_get_ratemask(sband, rates, n_rates,
4843 &ibss.basic_rates);
4844 if (err)
4845 return err;
fbd2c8dc 4846 }
dd5b4cc7
FF		 4847
4848 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4849 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4850 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4851 return -EINVAL;
fbd2c8dc 4852
4c476991
JB		 4853 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4854 connkeys = nl80211_parse_connkeys(rdev,
4855 info->attrs[NL80211_ATTR_KEYS]);
4856 if (IS_ERR(connkeys))
4857 return PTR_ERR(connkeys);
4858 }
04a773ad 4859
267335d6
AQ		 4860 ibss.control_port =
4861 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4862
4c476991 4863 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4864 if (err)
4865 kfree(connkeys);
04a773ad
JB		 4866 return err;
4867}
4868
4869static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4870{
4c476991
JB		 4871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4872 struct net_device *dev = info->user_ptr[1];
04a773ad 4873
4c476991
JB		 4874 if (!rdev->ops->leave_ibss)
4875 return -EOPNOTSUPP;
04a773ad 4876
4c476991
JB		 4877 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4878 return -EOPNOTSUPP;
04a773ad 4879
4c476991 4880 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4881}
4882
aff89a9b
JB		 4883#ifdef CONFIG_NL80211_TESTMODE
4884static struct genl_multicast_group nl80211_testmode_mcgrp = {
4885 .name = "testmode",
4886};
4887
4888static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4889{
4c476991 4890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4891 int err;
4892
4893 if (!info->attrs[NL80211_ATTR_TESTDATA])
4894 return -EINVAL;
4895
aff89a9b
JB		 4896 err = -EOPNOTSUPP;
4897 if (rdev->ops->testmode_cmd) {
4898 rdev->testmode_info = info;
4899 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4900 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4901 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4902 rdev->testmode_info = NULL;
4903 }
4904
aff89a9b
JB		 4905 return err;
4906}
4907
71063f0e
WYG		 4908static int nl80211_testmode_dump(struct sk_buff *skb,
4909 struct netlink_callback *cb)
4910{
00918d33 4911 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4912 int err;
4913 long phy_idx;
4914 void *data = NULL;
4915 int data_len = 0;
4916
4917 if (cb->args[0]) {
4918 /*
4919 * 0 is a valid index, but not valid for args[0],
4920 * so we need to offset by 1.
4921 */
4922 phy_idx = cb->args[0] - 1;
4923 } else {
4924 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4925 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4926 nl80211_policy);
4927 if (err)
4928 return err;
00918d33
JB		 4929 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4930 phy_idx = nla_get_u32(
4931 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4932 } else {
4933 struct net_device *netdev;
4934
4935 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4936 nl80211_fam.attrbuf,
4937 &rdev, &netdev);
4938 if (err)
4939 return err;
4940 dev_put(netdev);
4941 phy_idx = rdev->wiphy_idx;
4942 cfg80211_unlock_rdev(rdev);
4943 }
71063f0e
WYG		 4944 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4945 cb->args[1] =
4946 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4947 }
4948
4949 if (cb->args[1]) {
4950 data = nla_data((void *)cb->args[1]);
4951 data_len = nla_len((void *)cb->args[1]);
4952 }
4953
4954 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4955 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4956 if (!rdev) {
71063f0e
WYG		 4957 mutex_unlock(&cfg80211_mutex);
4958 return -ENOENT;
4959 }
00918d33 4960 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4961 mutex_unlock(&cfg80211_mutex);
4962
00918d33 4963 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4964 err = -EOPNOTSUPP;
4965 goto out_err;
4966 }
4967
4968 while (1) {
4969 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4970 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4971 NL80211_CMD_TESTMODE);
4972 struct nlattr *tmdata;
4973
00918d33 4974 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4975 genlmsg_cancel(skb, hdr);
4976 break;
4977 }
4978
4979 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4980 if (!tmdata) {
4981 genlmsg_cancel(skb, hdr);
4982 break;
4983 }
00918d33
JB		 4984 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4985 data, data_len);
71063f0e
WYG		 4986 nla_nest_end(skb, tmdata);
4987
4988 if (err == -ENOBUFS || err == -ENOENT) {
4989 genlmsg_cancel(skb, hdr);
4990 break;
4991 } else if (err) {
4992 genlmsg_cancel(skb, hdr);
4993 goto out_err;
4994 }
4995
4996 genlmsg_end(skb, hdr);
4997 }
4998
4999 err = skb->len;
5000 /* see above */
5001 cb->args[0] = phy_idx + 1;
5002 out_err:
00918d33 5003 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5004 return err;
5005}
5006
aff89a9b
JB		 5007static struct sk_buff *
5008__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5009 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5010{
5011 struct sk_buff *skb;
5012 void *hdr;
5013 struct nlattr *data;
5014
5015 skb = nlmsg_new(approxlen + 100, gfp);
5016 if (!skb)
5017 return NULL;
5018
5019 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5020 if (!hdr) {
5021 kfree_skb(skb);
5022 return NULL;
5023 }
5024
5025 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5026 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5027
5028 ((void **)skb->cb)[0] = rdev;
5029 ((void **)skb->cb)[1] = hdr;
5030 ((void **)skb->cb)[2] = data;
5031
5032 return skb;
5033
5034 nla_put_failure:
5035 kfree_skb(skb);
5036 return NULL;
5037}
5038
5039struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5040 int approxlen)
5041{
5042 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5043
5044 if (WARN_ON(!rdev->testmode_info))
5045 return NULL;
5046
5047 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5048 rdev->testmode_info->snd_pid,
5049 rdev->testmode_info->snd_seq,
5050 GFP_KERNEL);
5051}
5052EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5053
5054int cfg80211_testmode_reply(struct sk_buff *skb)
5055{
5056 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5057 void *hdr = ((void **)skb->cb)[1];
5058 struct nlattr *data = ((void **)skb->cb)[2];
5059
5060 if (WARN_ON(!rdev->testmode_info)) {
5061 kfree_skb(skb);
5062 return -EINVAL;
5063 }
5064
5065 nla_nest_end(skb, data);
5066 genlmsg_end(skb, hdr);
5067 return genlmsg_reply(skb, rdev->testmode_info);
5068}
5069EXPORT_SYMBOL(cfg80211_testmode_reply);
5070
5071struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5072 int approxlen, gfp_t gfp)
5073{
5074 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5075
5076 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5077}
5078EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5079
5080void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5081{
5082 void *hdr = ((void **)skb->cb)[1];
5083 struct nlattr *data = ((void **)skb->cb)[2];
5084
5085 nla_nest_end(skb, data);
5086 genlmsg_end(skb, hdr);
5087 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5088}
5089EXPORT_SYMBOL(cfg80211_testmode_event);
5090#endif
5091
b23aa676
SO		 5092static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5093{
4c476991
JB		 5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5096 struct cfg80211_connect_params connect;
5097 struct wiphy *wiphy;
fffd0934 5098 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5099 int err;
5100
5101 memset(&connect, 0, sizeof(connect));
5102
5103 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5104 return -EINVAL;
5105
5106 if (!info->attrs[NL80211_ATTR_SSID] ||
5107 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5108 return -EINVAL;
5109
5110 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5111 connect.auth_type =
5112 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5113 if (!nl80211_valid_auth_type(connect.auth_type))
5114 return -EINVAL;
5115 } else
5116 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5117
5118 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5119
c0692b8f 5120 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5121 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5122 if (err)
5123 return err;
b23aa676 5124
074ac8df 5125 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5126 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5127 return -EOPNOTSUPP;
b23aa676 5128
79c97e97 5129 wiphy = &rdev->wiphy;
b23aa676 5130
4486ea98
BS		 5131 connect.bg_scan_period = -1;
5132 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5133 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5134 connect.bg_scan_period =
5135 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5136 }
5137
b23aa676
SO		 5138 if (info->attrs[NL80211_ATTR_MAC])
5139 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5140 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5141 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5142
5143 if (info->attrs[NL80211_ATTR_IE]) {
5144 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5145 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5146 }
5147
5148 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5149 connect.channel =
5150 ieee80211_get_channel(wiphy,
5151 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5152 if (!connect.channel ||
4c476991
JB		 5153 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5154 return -EINVAL;
b23aa676
SO		 5155 }
5156
fffd0934
JB		 5157 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5158 connkeys = nl80211_parse_connkeys(rdev,
5159 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5160 if (IS_ERR(connkeys))
5161 return PTR_ERR(connkeys);
fffd0934
JB		 5162 }
5163
7e7c8926
BG		 5164 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5165 connect.flags |= ASSOC_REQ_DISABLE_HT;
5166
5167 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5168 memcpy(&connect.ht_capa_mask,
5169 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5170 sizeof(connect.ht_capa_mask));
5171
5172 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5173 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5174 return -EINVAL;
5175 memcpy(&connect.ht_capa,
5176 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5177 sizeof(connect.ht_capa));
5178 }
5179
fffd0934 5180 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5181 if (err)
5182 kfree(connkeys);
b23aa676
SO		 5183 return err;
5184}
5185
5186static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5187{
4c476991
JB		 5188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5189 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5190 u16 reason;
5191
5192 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5193 reason = WLAN_REASON_DEAUTH_LEAVING;
5194 else
5195 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5196
5197 if (reason == 0)
5198 return -EINVAL;
5199
074ac8df 5200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5202 return -EOPNOTSUPP;
b23aa676 5203
4c476991 5204 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5205}
5206
463d0183
JB		 5207static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5208{
4c476991 5209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5210 struct net *net;
5211 int err;
5212 u32 pid;
5213
5214 if (!info->attrs[NL80211_ATTR_PID])
5215 return -EINVAL;
5216
5217 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5218
463d0183 5219 net = get_net_ns_by_pid(pid);
4c476991
JB		 5220 if (IS_ERR(net))
5221 return PTR_ERR(net);
463d0183
JB		 5222
5223 err = 0;
5224
5225 /* check if anything to do */
4c476991
JB		 5226 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5227 err = cfg80211_switch_netns(rdev, net);
463d0183 5228
463d0183 5229 put_net(net);
463d0183
JB		 5230 return err;
5231}
5232
67fbb16b
SO		 5233static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5234{
4c476991 5235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5236 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5237 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5238 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5239 struct cfg80211_pmksa pmksa;
5240
5241 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5242
5243 if (!info->attrs[NL80211_ATTR_MAC])
5244 return -EINVAL;
5245
5246 if (!info->attrs[NL80211_ATTR_PMKID])
5247 return -EINVAL;
5248
67fbb16b
SO		 5249 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5250 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5251
074ac8df 5252 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5253 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5254 return -EOPNOTSUPP;
67fbb16b
SO		 5255
5256 switch (info->genlhdr->cmd) {
5257 case NL80211_CMD_SET_PMKSA:
5258 rdev_ops = rdev->ops->set_pmksa;
5259 break;
5260 case NL80211_CMD_DEL_PMKSA:
5261 rdev_ops = rdev->ops->del_pmksa;
5262 break;
5263 default:
5264 WARN_ON(1);
5265 break;
5266 }
5267
4c476991
JB		 5268 if (!rdev_ops)
5269 return -EOPNOTSUPP;
67fbb16b 5270
4c476991 5271 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5272}
5273
5274static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5275{
4c476991
JB		 5276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5277 struct net_device *dev = info->user_ptr[1];
67fbb16b 5278
074ac8df 5279 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5281 return -EOPNOTSUPP;
67fbb16b 5282
4c476991
JB		 5283 if (!rdev->ops->flush_pmksa)
5284 return -EOPNOTSUPP;
67fbb16b 5285
4c476991 5286 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5287}
5288
109086ce
AN		 5289static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5290{
5291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5292 struct net_device *dev = info->user_ptr[1];
5293 u8 action_code, dialog_token;
5294 u16 status_code;
5295 u8 *peer;
5296
5297 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5298 !rdev->ops->tdls_mgmt)
5299 return -EOPNOTSUPP;
5300
5301 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5302 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5303 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5304 !info->attrs[NL80211_ATTR_IE] ||
5305 !info->attrs[NL80211_ATTR_MAC])
5306 return -EINVAL;
5307
5308 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5309 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5310 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5311 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5312
5313 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5314 dialog_token, status_code,
5315 nla_data(info->attrs[NL80211_ATTR_IE]),
5316 nla_len(info->attrs[NL80211_ATTR_IE]));
5317}
5318
5319static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5320{
5321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5322 struct net_device *dev = info->user_ptr[1];
5323 enum nl80211_tdls_operation operation;
5324 u8 *peer;
5325
5326 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5327 !rdev->ops->tdls_oper)
5328 return -EOPNOTSUPP;
5329
5330 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5331 !info->attrs[NL80211_ATTR_MAC])
5332 return -EINVAL;
5333
5334 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5335 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5336
5337 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5338}
5339
9588bbd5
JM		 5340static int nl80211_remain_on_channel(struct sk_buff *skb,
5341 struct genl_info *info)
5342{
4c476991
JB		 5343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5344 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5345 struct ieee80211_channel *chan;
5346 struct sk_buff *msg;
5347 void *hdr;
5348 u64 cookie;
5349 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5350 u32 freq, duration;
5351 int err;
5352
5353 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5354 !info->attrs[NL80211_ATTR_DURATION])
5355 return -EINVAL;
5356
5357 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5358
5359 /*
5360 * We should be on that channel for at least one jiffie,
5361 * and more than 5 seconds seems excessive.
5362 */
a293911d
JB		 5363 if (!duration || !msecs_to_jiffies(duration) ||
5364 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5365 return -EINVAL;
5366
7c4ef712
JB		 5367 if (!rdev->ops->remain_on_channel ||
5368 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5369 return -EOPNOTSUPP;
9588bbd5 5370
9588bbd5
JM		 5371 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5372 channel_type = nla_get_u32(
5373 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5374 if (channel_type != NL80211_CHAN_NO_HT &&
5375 channel_type != NL80211_CHAN_HT20 &&
5376 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5377 channel_type != NL80211_CHAN_HT40MINUS)
5378 return -EINVAL;
9588bbd5
JM		 5379 }
5380
5381 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5382 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5383 if (chan == NULL)
5384 return -EINVAL;
9588bbd5
JM		 5385
5386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5387 if (!msg)
5388 return -ENOMEM;
9588bbd5
JM		 5389
5390 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5391 NL80211_CMD_REMAIN_ON_CHANNEL);
5392
5393 if (IS_ERR(hdr)) {
5394 err = PTR_ERR(hdr);
5395 goto free_msg;
5396 }
5397
5398 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5399 channel_type, duration, &cookie);
5400
5401 if (err)
5402 goto free_msg;
5403
5404 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5405
5406 genlmsg_end(msg, hdr);
4c476991
JB		 5407
5408 return genlmsg_reply(msg, info);
9588bbd5
JM		 5409
5410 nla_put_failure:
5411 err = -ENOBUFS;
5412 free_msg:
5413 nlmsg_free(msg);
9588bbd5
JM		 5414 return err;
5415}
5416
5417static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5418 struct genl_info *info)
5419{
4c476991
JB		 5420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5421 struct net_device *dev = info->user_ptr[1];
9588bbd5 5422 u64 cookie;
9588bbd5
JM		 5423
5424 if (!info->attrs[NL80211_ATTR_COOKIE])
5425 return -EINVAL;
5426
4c476991
JB		 5427 if (!rdev->ops->cancel_remain_on_channel)
5428 return -EOPNOTSUPP;
9588bbd5 5429
9588bbd5
JM		 5430 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5431
4c476991 5432 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5433}
5434
13ae75b1
JM		 5435static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5436 u8 *rates, u8 rates_len)
5437{
5438 u8 i;
5439 u32 mask = 0;
5440
5441 for (i = 0; i < rates_len; i++) {
5442 int rate = (rates[i] & 0x7f) * 5;
5443 int ridx;
5444 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5445 struct ieee80211_rate *srate =
5446 &sband->bitrates[ridx];
5447 if (rate == srate->bitrate) {
5448 mask |= 1 << ridx;
5449 break;
5450 }
5451 }
5452 if (ridx == sband->n_bitrates)
5453 return 0; /* rate not found */
5454 }
5455
5456 return mask;
5457}
5458
24db78c0
SW		 5459static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5460 u8 *rates, u8 rates_len,
5461 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5462{
5463 u8 i;
5464
5465 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5466
5467 for (i = 0; i < rates_len; i++) {
5468 int ridx, rbit;
5469
5470 ridx = rates[i] / 8;
5471 rbit = BIT(rates[i] % 8);
5472
5473 /* check validity */
910570b5 5474 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5475 return false;
5476
5477 /* check availability */
5478 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5479 mcs[ridx] |= rbit;
5480 else
5481 return false;
5482 }
5483
5484 return true;
5485}
5486
b54452b0 5487static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5488 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5489 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5490 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5491 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5492};
5493
5494static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5495 struct genl_info *info)
5496{
5497 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5498 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5499 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5500 int rem, i;
5501 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5502 struct nlattr *tx_rates;
5503 struct ieee80211_supported_band *sband;
5504
5505 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5506 return -EINVAL;
5507
4c476991
JB		 5508 if (!rdev->ops->set_bitrate_mask)
5509 return -EOPNOTSUPP;
13ae75b1
JM		 5510
5511 memset(&mask, 0, sizeof(mask));
5512 /* Default to all rates enabled */
5513 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5514 sband = rdev->wiphy.bands[i];
5515 mask.control[i].legacy =
5516 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5517 if (sband)
5518 memcpy(mask.control[i].mcs,
5519 sband->ht_cap.mcs.rx_mask,
5520 sizeof(mask.control[i].mcs));
5521 else
5522 memset(mask.control[i].mcs, 0,
5523 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5524 }
5525
5526 /*
5527 * The nested attribute uses enum nl80211_band as the index. This maps
5528 * directly to the enum ieee80211_band values used in cfg80211.
5529 */
24db78c0 5530 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5531 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5532 {
5533 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5534 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5535 return -EINVAL;
13ae75b1 5536 sband = rdev->wiphy.bands[band];
4c476991
JB		 5537 if (sband == NULL)
5538 return -EINVAL;
13ae75b1
JM		 5539 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5540 nla_len(tx_rates), nl80211_txattr_policy);
5541 if (tb[NL80211_TXRATE_LEGACY]) {
5542 mask.control[band].legacy = rateset_to_mask(
5543 sband,
5544 nla_data(tb[NL80211_TXRATE_LEGACY]),
5545 nla_len(tb[NL80211_TXRATE_LEGACY]));
24db78c0
SW		 5546 }
5547 if (tb[NL80211_TXRATE_MCS]) {
5548 if (!ht_rateset_to_mask(
5549 sband,
5550 nla_data(tb[NL80211_TXRATE_MCS]),
5551 nla_len(tb[NL80211_TXRATE_MCS]),
5552 mask.control[band].mcs))
5553 return -EINVAL;
5554 }
5555
5556 if (mask.control[band].legacy == 0) {
5557 /* don't allow empty legacy rates if HT
5558 * is not even supported. */
5559 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5560 return -EINVAL;
5561
5562 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5563 if (mask.control[band].mcs[i])
5564 break;
5565
5566 /* legacy and mcs rates may not be both empty */
5567 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5568 return -EINVAL;
13ae75b1
JM		 5569 }
5570 }
5571
4c476991 5572 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5573}
5574
2e161f78 5575static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5576{
4c476991
JB		 5577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5578 struct net_device *dev = info->user_ptr[1];
2e161f78 5579 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5580
5581 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5582 return -EINVAL;
5583
2e161f78
JB		 5584 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5585 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5586
9d38d85d 5587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5592 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5593 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5594 return -EOPNOTSUPP;
026331c4
JM		 5595
5596 /* not much point in registering if we can't reply */
4c476991
JB		 5597 if (!rdev->ops->mgmt_tx)
5598 return -EOPNOTSUPP;
026331c4 5599
4c476991 5600 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5601 frame_type,
026331c4
JM		 5602 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5603 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5604}
5605
2e161f78 5606static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5607{
4c476991
JB		 5608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5609 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5610 struct ieee80211_channel *chan;
5611 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5612 bool channel_type_valid = false;
026331c4
JM		 5613 u32 freq;
5614 int err;
d64d373f 5615 void *hdr = NULL;
026331c4 5616 u64 cookie;
e247bd90 5617 struct sk_buff *msg = NULL;
f7ca38df 5618 unsigned int wait = 0;
e247bd90
JB		 5619 bool offchan, no_cck, dont_wait_for_ack;
5620
5621 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5622
5623 if (!info->attrs[NL80211_ATTR_FRAME] ||
5624 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5625 return -EINVAL;
5626
4c476991
JB		 5627 if (!rdev->ops->mgmt_tx)
5628 return -EOPNOTSUPP;
026331c4 5629
9d38d85d 5630 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5631 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5632 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5633 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5634 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5635 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5636 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5637 return -EOPNOTSUPP;
026331c4 5638
f7ca38df 5639 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5640 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5641 return -EINVAL;
5642 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5643 }
5644
026331c4
JM		 5645 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5646 channel_type = nla_get_u32(
5647 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5648 if (channel_type != NL80211_CHAN_NO_HT &&
5649 channel_type != NL80211_CHAN_HT20 &&
5650 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5651 channel_type != NL80211_CHAN_HT40MINUS)
5652 return -EINVAL;
252aa631 5653 channel_type_valid = true;
026331c4
JM		 5654 }
5655
f7ca38df
JB		 5656 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5657
7c4ef712
JB		 5658 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5659 return -EINVAL;
5660
e9f935e3
RM		 5661 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5662
026331c4
JM		 5663 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5664 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5665 if (chan == NULL)
5666 return -EINVAL;
026331c4 5667
e247bd90
JB		 5668 if (!dont_wait_for_ack) {
5669 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5670 if (!msg)
5671 return -ENOMEM;
026331c4 5672
e247bd90
JB		 5673 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5674 NL80211_CMD_FRAME);
026331c4 5675
e247bd90
JB		 5676 if (IS_ERR(hdr)) {
5677 err = PTR_ERR(hdr);
5678 goto free_msg;
5679 }
026331c4 5680 }
e247bd90 5681
f7ca38df
JB		 5682 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5683 channel_type_valid, wait,
2e161f78
JB		 5684 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5685 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5686 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5687 if (err)
5688 goto free_msg;
5689
e247bd90
JB		 5690 if (msg) {
5691 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5692
e247bd90
JB		 5693 genlmsg_end(msg, hdr);
5694 return genlmsg_reply(msg, info);
5695 }
5696
5697 return 0;
026331c4
JM		 5698
5699 nla_put_failure:
5700 err = -ENOBUFS;
5701 free_msg:
5702 nlmsg_free(msg);
026331c4
JM		 5703 return err;
5704}
5705
f7ca38df
JB		 5706static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5707{
5708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5709 struct net_device *dev = info->user_ptr[1];
5710 u64 cookie;
5711
5712 if (!info->attrs[NL80211_ATTR_COOKIE])
5713 return -EINVAL;
5714
5715 if (!rdev->ops->mgmt_tx_cancel_wait)
5716 return -EOPNOTSUPP;
5717
5718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5719 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5721 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5722 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5723 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5724 return -EOPNOTSUPP;
5725
5726 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5727
5728 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5729}
5730
ffb9eb3d
KV		 5731static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5732{
4c476991 5733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5734 struct wireless_dev *wdev;
4c476991 5735 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5736 u8 ps_state;
5737 bool state;
5738 int err;
5739
4c476991
JB		 5740 if (!info->attrs[NL80211_ATTR_PS_STATE])
5741 return -EINVAL;
ffb9eb3d
KV		 5742
5743 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5744
4c476991
JB		 5745 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5746 return -EINVAL;
ffb9eb3d
KV		 5747
5748 wdev = dev->ieee80211_ptr;
5749
4c476991
JB		 5750 if (!rdev->ops->set_power_mgmt)
5751 return -EOPNOTSUPP;
ffb9eb3d
KV		 5752
5753 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5754
5755 if (state == wdev->ps)
4c476991 5756 return 0;
ffb9eb3d 5757
4c476991
JB		 5758 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5759 wdev->ps_timeout);
5760 if (!err)
5761 wdev->ps = state;
ffb9eb3d
KV		 5762 return err;
5763}
5764
5765static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5766{
4c476991 5767 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5768 enum nl80211_ps_state ps_state;
5769 struct wireless_dev *wdev;
4c476991 5770 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5771 struct sk_buff *msg;
5772 void *hdr;
5773 int err;
5774
ffb9eb3d
KV		 5775 wdev = dev->ieee80211_ptr;
5776
4c476991
JB		 5777 if (!rdev->ops->set_power_mgmt)
5778 return -EOPNOTSUPP;
ffb9eb3d
KV		 5779
5780 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5781 if (!msg)
5782 return -ENOMEM;
ffb9eb3d
KV		 5783
5784 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5785 NL80211_CMD_GET_POWER_SAVE);
5786 if (!hdr) {
4c476991 5787 err = -ENOBUFS;
ffb9eb3d
KV		 5788 goto free_msg;
5789 }
5790
5791 if (wdev->ps)
5792 ps_state = NL80211_PS_ENABLED;
5793 else
5794 ps_state = NL80211_PS_DISABLED;
5795
5796 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5797
5798 genlmsg_end(msg, hdr);
4c476991 5799 return genlmsg_reply(msg, info);
ffb9eb3d 5800
4c476991 5801 nla_put_failure:
ffb9eb3d 5802 err = -ENOBUFS;
4c476991 5803 free_msg:
ffb9eb3d 5804 nlmsg_free(msg);
ffb9eb3d
KV		 5805 return err;
5806}
5807
d6dc1a38
JO		 5808static struct nla_policy
5809nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5810 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5811 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5812 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5813};
5814
5815static int nl80211_set_cqm_rssi(struct genl_info *info,
5816 s32 threshold, u32 hysteresis)
5817{
4c476991 5818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5819 struct wireless_dev *wdev;
4c476991 5820 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5821
5822 if (threshold > 0)
5823 return -EINVAL;
5824
d6dc1a38
JO		 5825 wdev = dev->ieee80211_ptr;
5826
4c476991
JB		 5827 if (!rdev->ops->set_cqm_rssi_config)
5828 return -EOPNOTSUPP;
d6dc1a38 5829
074ac8df 5830 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5831 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5832 return -EOPNOTSUPP;
d6dc1a38 5833
4c476991
JB		 5834 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5835 threshold, hysteresis);
d6dc1a38
JO		 5836}
5837
5838static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5839{
5840 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5841 struct nlattr *cqm;
5842 int err;
5843
5844 cqm = info->attrs[NL80211_ATTR_CQM];
5845 if (!cqm) {
5846 err = -EINVAL;
5847 goto out;
5848 }
5849
5850 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5851 nl80211_attr_cqm_policy);
5852 if (err)
5853 goto out;
5854
5855 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5856 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5857 s32 threshold;
5858 u32 hysteresis;
5859 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5860 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5861 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5862 } else
5863 err = -EINVAL;
5864
5865out:
5866 return err;
5867}
5868
29cbe68c
JB		 5869static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5870{
5871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5872 struct net_device *dev = info->user_ptr[1];
5873 struct mesh_config cfg;
c80d545d 5874 struct mesh_setup setup;
29cbe68c
JB		 5875 int err;
5876
5877 /* start with default */
5878 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5879 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5880
24bdd9f4 5881 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5882 /* and parse parameters if given */
24bdd9f4 5883 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5884 if (err)
5885 return err;
5886 }
5887
5888 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5889 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5890 return -EINVAL;
5891
c80d545d
JC		 5892 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5893 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5894
4bb62344
CYY		 5895 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5896 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5897 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5898 return -EINVAL;
5899
c80d545d
JC		 5900 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5901 /* parse additional setup parameters if given */
5902 err = nl80211_parse_mesh_setup(info, &setup);
5903 if (err)
5904 return err;
5905 }
5906
5907 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5908}
5909
5910static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5911{
5912 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5913 struct net_device *dev = info->user_ptr[1];
5914
5915 return cfg80211_leave_mesh(rdev, dev);
5916}
5917
ff1b6e69
JB		 5918static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5919{
5920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5921 struct sk_buff *msg;
5922 void *hdr;
5923
5924 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5925 return -EOPNOTSUPP;
5926
5927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5928 if (!msg)
5929 return -ENOMEM;
5930
5931 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5932 NL80211_CMD_GET_WOWLAN);
5933 if (!hdr)
5934 goto nla_put_failure;
5935
5936 if (rdev->wowlan) {
5937 struct nlattr *nl_wowlan;
5938
5939 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5940 if (!nl_wowlan)
5941 goto nla_put_failure;
5942
5943 if (rdev->wowlan->any)
5944 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5945 if (rdev->wowlan->disconnect)
5946 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5947 if (rdev->wowlan->magic_pkt)
5948 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5949 if (rdev->wowlan->gtk_rekey_failure)
5950 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5951 if (rdev->wowlan->eap_identity_req)
5952 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5953 if (rdev->wowlan->four_way_handshake)
5954 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5955 if (rdev->wowlan->rfkill_release)
5956 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5957 if (rdev->wowlan->n_patterns) {
5958 struct nlattr *nl_pats, *nl_pat;
5959 int i, pat_len;
5960
5961 nl_pats = nla_nest_start(msg,
5962 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5963 if (!nl_pats)
5964 goto nla_put_failure;
5965
5966 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5967 nl_pat = nla_nest_start(msg, i + 1);
5968 if (!nl_pat)
5969 goto nla_put_failure;
5970 pat_len = rdev->wowlan->patterns[i].pattern_len;
5971 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5972 DIV_ROUND_UP(pat_len, 8),
5973 rdev->wowlan->patterns[i].mask);
5974 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5975 pat_len,
5976 rdev->wowlan->patterns[i].pattern);
5977 nla_nest_end(msg, nl_pat);
5978 }
5979 nla_nest_end(msg, nl_pats);
5980 }
5981
5982 nla_nest_end(msg, nl_wowlan);
5983 }
5984
5985 genlmsg_end(msg, hdr);
5986 return genlmsg_reply(msg, info);
5987
5988nla_put_failure:
5989 nlmsg_free(msg);
5990 return -ENOBUFS;
5991}
5992
5993static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5994{
5995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5996 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5997 struct cfg80211_wowlan no_triggers = {};
5998 struct cfg80211_wowlan new_triggers = {};
5999 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6000 int err, i;
6001
6002 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6003 return -EOPNOTSUPP;
6004
6005 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6006 goto no_triggers;
6007
6008 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6009 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6010 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6011 nl80211_wowlan_policy);
6012 if (err)
6013 return err;
6014
6015 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6016 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6017 return -EINVAL;
6018 new_triggers.any = true;
6019 }
6020
6021 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6022 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6023 return -EINVAL;
6024 new_triggers.disconnect = true;
6025 }
6026
6027 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6028 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6029 return -EINVAL;
6030 new_triggers.magic_pkt = true;
6031 }
6032
77dbbb13
JB		 6033 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6034 return -EINVAL;
6035
6036 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6037 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6038 return -EINVAL;
6039 new_triggers.gtk_rekey_failure = true;
6040 }
6041
6042 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6043 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6044 return -EINVAL;
6045 new_triggers.eap_identity_req = true;
6046 }
6047
6048 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6049 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6050 return -EINVAL;
6051 new_triggers.four_way_handshake = true;
6052 }
6053
6054 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6055 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6056 return -EINVAL;
6057 new_triggers.rfkill_release = true;
6058 }
6059
ff1b6e69
JB		 6060 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6061 struct nlattr *pat;
6062 int n_patterns = 0;
6063 int rem, pat_len, mask_len;
6064 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6065
6066 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6067 rem)
6068 n_patterns++;
6069 if (n_patterns > wowlan->n_patterns)
6070 return -EINVAL;
6071
6072 new_triggers.patterns = kcalloc(n_patterns,
6073 sizeof(new_triggers.patterns[0]),
6074 GFP_KERNEL);
6075 if (!new_triggers.patterns)
6076 return -ENOMEM;
6077
6078 new_triggers.n_patterns = n_patterns;
6079 i = 0;
6080
6081 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6082 rem) {
6083 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6084 nla_data(pat), nla_len(pat), NULL);
6085 err = -EINVAL;
6086 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6087 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6088 goto error;
6089 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6090 mask_len = DIV_ROUND_UP(pat_len, 8);
6091 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6092 mask_len)
6093 goto error;
6094 if (pat_len > wowlan->pattern_max_len ||
6095 pat_len < wowlan->pattern_min_len)
6096 goto error;
6097
6098 new_triggers.patterns[i].mask =
6099 kmalloc(mask_len + pat_len, GFP_KERNEL);
6100 if (!new_triggers.patterns[i].mask) {
6101 err = -ENOMEM;
6102 goto error;
6103 }
6104 new_triggers.patterns[i].pattern =
6105 new_triggers.patterns[i].mask + mask_len;
6106 memcpy(new_triggers.patterns[i].mask,
6107 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6108 mask_len);
6109 new_triggers.patterns[i].pattern_len = pat_len;
6110 memcpy(new_triggers.patterns[i].pattern,
6111 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6112 pat_len);
6113 i++;
6114 }
6115 }
6116
6117 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6118 struct cfg80211_wowlan *ntrig;
6119 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6120 GFP_KERNEL);
6121 if (!ntrig) {
6122 err = -ENOMEM;
6123 goto error;
6124 }
6125 cfg80211_rdev_free_wowlan(rdev);
6126 rdev->wowlan = ntrig;
6127 } else {
6128 no_triggers:
6129 cfg80211_rdev_free_wowlan(rdev);
6130 rdev->wowlan = NULL;
6131 }
6132
6133 return 0;
6134 error:
6135 for (i = 0; i < new_triggers.n_patterns; i++)
6136 kfree(new_triggers.patterns[i].mask);
6137 kfree(new_triggers.patterns);
6138 return err;
6139}
6140
e5497d76
JB		 6141static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6142{
6143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6144 struct net_device *dev = info->user_ptr[1];
6145 struct wireless_dev *wdev = dev->ieee80211_ptr;
6146 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6147 struct cfg80211_gtk_rekey_data rekey_data;
6148 int err;
6149
6150 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6151 return -EINVAL;
6152
6153 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6154 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6155 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6156 nl80211_rekey_policy);
6157 if (err)
6158 return err;
6159
6160 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6161 return -ERANGE;
6162 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6163 return -ERANGE;
6164 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6165 return -ERANGE;
6166
6167 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6168 NL80211_KEK_LEN);
6169 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6170 NL80211_KCK_LEN);
6171 memcpy(rekey_data.replay_ctr,
6172 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6173 NL80211_REPLAY_CTR_LEN);
6174
6175 wdev_lock(wdev);
6176 if (!wdev->current_bss) {
6177 err = -ENOTCONN;
6178 goto out;
6179 }
6180
6181 if (!rdev->ops->set_rekey_data) {
6182 err = -EOPNOTSUPP;
6183 goto out;
6184 }
6185
6186 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6187 out:
6188 wdev_unlock(wdev);
6189 return err;
6190}
6191
28946da7
JB		 6192static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6193 struct genl_info *info)
6194{
6195 struct net_device *dev = info->user_ptr[1];
6196 struct wireless_dev *wdev = dev->ieee80211_ptr;
6197
6198 if (wdev->iftype != NL80211_IFTYPE_AP &&
6199 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6200 return -EINVAL;
6201
6202 if (wdev->ap_unexpected_nlpid)
6203 return -EBUSY;
6204
6205 wdev->ap_unexpected_nlpid = info->snd_pid;
6206 return 0;
6207}
6208
7f6cf311
JB		 6209static int nl80211_probe_client(struct sk_buff *skb,
6210 struct genl_info *info)
6211{
6212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6213 struct net_device *dev = info->user_ptr[1];
6214 struct wireless_dev *wdev = dev->ieee80211_ptr;
6215 struct sk_buff *msg;
6216 void *hdr;
6217 const u8 *addr;
6218 u64 cookie;
6219 int err;
6220
6221 if (wdev->iftype != NL80211_IFTYPE_AP &&
6222 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6223 return -EOPNOTSUPP;
6224
6225 if (!info->attrs[NL80211_ATTR_MAC])
6226 return -EINVAL;
6227
6228 if (!rdev->ops->probe_client)
6229 return -EOPNOTSUPP;
6230
6231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6232 if (!msg)
6233 return -ENOMEM;
6234
6235 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6236 NL80211_CMD_PROBE_CLIENT);
6237
6238 if (IS_ERR(hdr)) {
6239 err = PTR_ERR(hdr);
6240 goto free_msg;
6241 }
6242
6243 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6244
6245 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6246 if (err)
6247 goto free_msg;
6248
6249 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6250
6251 genlmsg_end(msg, hdr);
6252
6253 return genlmsg_reply(msg, info);
6254
6255 nla_put_failure:
6256 err = -ENOBUFS;
6257 free_msg:
6258 nlmsg_free(msg);
6259 return err;
6260}
6261
5e760230
JB		 6262static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6263{
6264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6265
6266 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6267 return -EOPNOTSUPP;
6268
6269 if (rdev->ap_beacons_nlpid)
6270 return -EBUSY;
6271
6272 rdev->ap_beacons_nlpid = info->snd_pid;
6273
6274 return 0;
6275}
6276
4c476991
JB		 6277#define NL80211_FLAG_NEED_WIPHY 0x01
6278#define NL80211_FLAG_NEED_NETDEV 0x02
6279#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6280#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6281#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6282 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6283
6284static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6285 struct genl_info *info)
6286{
6287 struct cfg80211_registered_device *rdev;
6288 struct net_device *dev;
6289 int err;
6290 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6291
6292 if (rtnl)
6293 rtnl_lock();
6294
6295 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6296 rdev = cfg80211_get_dev_from_info(info);
6297 if (IS_ERR(rdev)) {
6298 if (rtnl)
6299 rtnl_unlock();
6300 return PTR_ERR(rdev);
6301 }
6302 info->user_ptr[0] = rdev;
6303 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6304 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6305 &rdev, &dev);
4c476991
JB		 6306 if (err) {
6307 if (rtnl)
6308 rtnl_unlock();
6309 return err;
6310 }
41265714
JB		 6311 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6312 !netif_running(dev)) {
d537f5fd
JB		 6313 cfg80211_unlock_rdev(rdev);
6314 dev_put(dev);
41265714
JB		 6315 if (rtnl)
6316 rtnl_unlock();
6317 return -ENETDOWN;
6318 }
4c476991
JB		 6319 info->user_ptr[0] = rdev;
6320 info->user_ptr[1] = dev;
6321 }
6322
6323 return 0;
6324}
6325
6326static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6327 struct genl_info *info)
6328{
6329 if (info->user_ptr[0])
6330 cfg80211_unlock_rdev(info->user_ptr[0]);
6331 if (info->user_ptr[1])
6332 dev_put(info->user_ptr[1]);
6333 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6334 rtnl_unlock();
6335}
6336
55682965
JB		 6337static struct genl_ops nl80211_ops[] = {
6338 {
6339 .cmd = NL80211_CMD_GET_WIPHY,
6340 .doit = nl80211_get_wiphy,
6341 .dumpit = nl80211_dump_wiphy,
6342 .policy = nl80211_policy,
6343 /* can be retrieved by unprivileged users */
4c476991 6344 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6345 },
6346 {
6347 .cmd = NL80211_CMD_SET_WIPHY,
6348 .doit = nl80211_set_wiphy,
6349 .policy = nl80211_policy,
6350 .flags = GENL_ADMIN_PERM,
4c476991 6351 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6352 },
6353 {
6354 .cmd = NL80211_CMD_GET_INTERFACE,
6355 .doit = nl80211_get_interface,
6356 .dumpit = nl80211_dump_interface,
6357 .policy = nl80211_policy,
6358 /* can be retrieved by unprivileged users */
4c476991 6359 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6360 },
6361 {
6362 .cmd = NL80211_CMD_SET_INTERFACE,
6363 .doit = nl80211_set_interface,
6364 .policy = nl80211_policy,
6365 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6366 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6367 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6368 },
6369 {
6370 .cmd = NL80211_CMD_NEW_INTERFACE,
6371 .doit = nl80211_new_interface,
6372 .policy = nl80211_policy,
6373 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6374 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6375 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6376 },
6377 {
6378 .cmd = NL80211_CMD_DEL_INTERFACE,
6379 .doit = nl80211_del_interface,
6380 .policy = nl80211_policy,
41ade00f 6381 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6382 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6383 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6384 },
6385 {
6386 .cmd = NL80211_CMD_GET_KEY,
6387 .doit = nl80211_get_key,
6388 .policy = nl80211_policy,
6389 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6390 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6391 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6392 },
6393 {
6394 .cmd = NL80211_CMD_SET_KEY,
6395 .doit = nl80211_set_key,
6396 .policy = nl80211_policy,
6397 .flags = GENL_ADMIN_PERM,
41265714 6398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6399 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6400 },
6401 {
6402 .cmd = NL80211_CMD_NEW_KEY,
6403 .doit = nl80211_new_key,
6404 .policy = nl80211_policy,
6405 .flags = GENL_ADMIN_PERM,
41265714 6406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6407 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6408 },
6409 {
6410 .cmd = NL80211_CMD_DEL_KEY,
6411 .doit = nl80211_del_key,
6412 .policy = nl80211_policy,
55682965 6413 .flags = GENL_ADMIN_PERM,
41265714 6414 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6415 NL80211_FLAG_NEED_RTNL,
55682965 6416 },
ed1b6cc7
JB		 6417 {
6418 .cmd = NL80211_CMD_SET_BEACON,
6419 .policy = nl80211_policy,
6420 .flags = GENL_ADMIN_PERM,
8860020e 6421 .doit = nl80211_set_beacon,
4c476991
JB		 6422 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6423 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6424 },
6425 {
8860020e 6426 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6427 .policy = nl80211_policy,
6428 .flags = GENL_ADMIN_PERM,
8860020e 6429 .doit = nl80211_start_ap,
4c476991
JB		 6430 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6431 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6432 },
6433 {
8860020e 6434 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6435 .policy = nl80211_policy,
6436 .flags = GENL_ADMIN_PERM,
8860020e 6437 .doit = nl80211_stop_ap,
4c476991
JB		 6438 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6439 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6440 },
5727ef1b
JB		 6441 {
6442 .cmd = NL80211_CMD_GET_STATION,
6443 .doit = nl80211_get_station,
2ec600d6 6444 .dumpit = nl80211_dump_station,
5727ef1b 6445 .policy = nl80211_policy,
4c476991
JB		 6446 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6447 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6448 },
6449 {
6450 .cmd = NL80211_CMD_SET_STATION,
6451 .doit = nl80211_set_station,
6452 .policy = nl80211_policy,
6453 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6454 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6455 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6456 },
6457 {
6458 .cmd = NL80211_CMD_NEW_STATION,
6459 .doit = nl80211_new_station,
6460 .policy = nl80211_policy,
6461 .flags = GENL_ADMIN_PERM,
41265714 6462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6463 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6464 },
6465 {
6466 .cmd = NL80211_CMD_DEL_STATION,
6467 .doit = nl80211_del_station,
6468 .policy = nl80211_policy,
2ec600d6 6469 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6470 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6471 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6472 },
6473 {
6474 .cmd = NL80211_CMD_GET_MPATH,
6475 .doit = nl80211_get_mpath,
6476 .dumpit = nl80211_dump_mpath,
6477 .policy = nl80211_policy,
6478 .flags = GENL_ADMIN_PERM,
41265714 6479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6480 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6481 },
6482 {
6483 .cmd = NL80211_CMD_SET_MPATH,
6484 .doit = nl80211_set_mpath,
6485 .policy = nl80211_policy,
6486 .flags = GENL_ADMIN_PERM,
41265714 6487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6488 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6489 },
6490 {
6491 .cmd = NL80211_CMD_NEW_MPATH,
6492 .doit = nl80211_new_mpath,
6493 .policy = nl80211_policy,
6494 .flags = GENL_ADMIN_PERM,
41265714 6495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6496 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6497 },
6498 {
6499 .cmd = NL80211_CMD_DEL_MPATH,
6500 .doit = nl80211_del_mpath,
6501 .policy = nl80211_policy,
9f1ba906 6502 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6503 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6504 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6505 },
6506 {
6507 .cmd = NL80211_CMD_SET_BSS,
6508 .doit = nl80211_set_bss,
6509 .policy = nl80211_policy,
b2e1b302 6510 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6511 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6512 NL80211_FLAG_NEED_RTNL,
b2e1b302 6513 },
f130347c
LR		 6514 {
6515 .cmd = NL80211_CMD_GET_REG,
6516 .doit = nl80211_get_reg,
6517 .policy = nl80211_policy,
6518 /* can be retrieved by unprivileged users */
6519 },
b2e1b302
LR		 6520 {
6521 .cmd = NL80211_CMD_SET_REG,
6522 .doit = nl80211_set_reg,
6523 .policy = nl80211_policy,
6524 .flags = GENL_ADMIN_PERM,
6525 },
6526 {
6527 .cmd = NL80211_CMD_REQ_SET_REG,
6528 .doit = nl80211_req_set_reg,
6529 .policy = nl80211_policy,
93da9cc1 6530 .flags = GENL_ADMIN_PERM,
6531 },
6532 {
24bdd9f4
JC		 6533 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6534 .doit = nl80211_get_mesh_config,
93da9cc1 6535 .policy = nl80211_policy,
6536 /* can be retrieved by unprivileged users */
4c476991
JB		 6537 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6538 NL80211_FLAG_NEED_RTNL,
93da9cc1 6539 },
6540 {
24bdd9f4
JC		 6541 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6542 .doit = nl80211_update_mesh_config,
93da9cc1 6543 .policy = nl80211_policy,
9aed3cc1 6544 .flags = GENL_ADMIN_PERM,
29cbe68c 6545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6546 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6547 },
2a519311
JB		 6548 {
6549 .cmd = NL80211_CMD_TRIGGER_SCAN,
6550 .doit = nl80211_trigger_scan,
6551 .policy = nl80211_policy,
6552 .flags = GENL_ADMIN_PERM,
41265714 6553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6554 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6555 },
6556 {
6557 .cmd = NL80211_CMD_GET_SCAN,
6558 .policy = nl80211_policy,
6559 .dumpit = nl80211_dump_scan,
6560 },
807f8a8c
LC		 6561 {
6562 .cmd = NL80211_CMD_START_SCHED_SCAN,
6563 .doit = nl80211_start_sched_scan,
6564 .policy = nl80211_policy,
6565 .flags = GENL_ADMIN_PERM,
6566 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6567 NL80211_FLAG_NEED_RTNL,
6568 },
6569 {
6570 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6571 .doit = nl80211_stop_sched_scan,
6572 .policy = nl80211_policy,
6573 .flags = GENL_ADMIN_PERM,
6574 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6575 NL80211_FLAG_NEED_RTNL,
6576 },
636a5d36
JM		 6577 {
6578 .cmd = NL80211_CMD_AUTHENTICATE,
6579 .doit = nl80211_authenticate,
6580 .policy = nl80211_policy,
6581 .flags = GENL_ADMIN_PERM,
41265714 6582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6583 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6584 },
6585 {
6586 .cmd = NL80211_CMD_ASSOCIATE,
6587 .doit = nl80211_associate,
6588 .policy = nl80211_policy,
6589 .flags = GENL_ADMIN_PERM,
41265714 6590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6591 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6592 },
6593 {
6594 .cmd = NL80211_CMD_DEAUTHENTICATE,
6595 .doit = nl80211_deauthenticate,
6596 .policy = nl80211_policy,
6597 .flags = GENL_ADMIN_PERM,
41265714 6598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6599 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6600 },
6601 {
6602 .cmd = NL80211_CMD_DISASSOCIATE,
6603 .doit = nl80211_disassociate,
6604 .policy = nl80211_policy,
6605 .flags = GENL_ADMIN_PERM,
41265714 6606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6607 NL80211_FLAG_NEED_RTNL,
636a5d36 6608 },
04a773ad
JB		 6609 {
6610 .cmd = NL80211_CMD_JOIN_IBSS,
6611 .doit = nl80211_join_ibss,
6612 .policy = nl80211_policy,
6613 .flags = GENL_ADMIN_PERM,
41265714 6614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6615 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6616 },
6617 {
6618 .cmd = NL80211_CMD_LEAVE_IBSS,
6619 .doit = nl80211_leave_ibss,
6620 .policy = nl80211_policy,
6621 .flags = GENL_ADMIN_PERM,
41265714 6622 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6623 NL80211_FLAG_NEED_RTNL,
04a773ad 6624 },
aff89a9b
JB		 6625#ifdef CONFIG_NL80211_TESTMODE
6626 {
6627 .cmd = NL80211_CMD_TESTMODE,
6628 .doit = nl80211_testmode_do,
71063f0e 6629 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6630 .policy = nl80211_policy,
6631 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6632 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6633 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6634 },
6635#endif
b23aa676
SO		 6636 {
6637 .cmd = NL80211_CMD_CONNECT,
6638 .doit = nl80211_connect,
6639 .policy = nl80211_policy,
6640 .flags = GENL_ADMIN_PERM,
41265714 6641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6642 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6643 },
6644 {
6645 .cmd = NL80211_CMD_DISCONNECT,
6646 .doit = nl80211_disconnect,
6647 .policy = nl80211_policy,
6648 .flags = GENL_ADMIN_PERM,
41265714 6649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6650 NL80211_FLAG_NEED_RTNL,
b23aa676 6651 },
463d0183
JB		 6652 {
6653 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6654 .doit = nl80211_wiphy_netns,
6655 .policy = nl80211_policy,
6656 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6657 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6658 NL80211_FLAG_NEED_RTNL,
463d0183 6659 },
61fa713c
HS		 6660 {
6661 .cmd = NL80211_CMD_GET_SURVEY,
6662 .policy = nl80211_policy,
6663 .dumpit = nl80211_dump_survey,
6664 },
67fbb16b
SO		 6665 {
6666 .cmd = NL80211_CMD_SET_PMKSA,
6667 .doit = nl80211_setdel_pmksa,
6668 .policy = nl80211_policy,
6669 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6670 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6671 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6672 },
6673 {
6674 .cmd = NL80211_CMD_DEL_PMKSA,
6675 .doit = nl80211_setdel_pmksa,
6676 .policy = nl80211_policy,
6677 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6678 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6679 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6680 },
6681 {
6682 .cmd = NL80211_CMD_FLUSH_PMKSA,
6683 .doit = nl80211_flush_pmksa,
6684 .policy = nl80211_policy,
6685 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6686 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6687 NL80211_FLAG_NEED_RTNL,
67fbb16b 6688 },
9588bbd5
JM		 6689 {
6690 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6691 .doit = nl80211_remain_on_channel,
6692 .policy = nl80211_policy,
6693 .flags = GENL_ADMIN_PERM,
41265714 6694 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6695 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6696 },
6697 {
6698 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6699 .doit = nl80211_cancel_remain_on_channel,
6700 .policy = nl80211_policy,
6701 .flags = GENL_ADMIN_PERM,
41265714 6702 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6703 NL80211_FLAG_NEED_RTNL,
9588bbd5 6704 },
13ae75b1
JM		 6705 {
6706 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6707 .doit = nl80211_set_tx_bitrate_mask,
6708 .policy = nl80211_policy,
6709 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6710 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6711 NL80211_FLAG_NEED_RTNL,
13ae75b1 6712 },
026331c4 6713 {
2e161f78
JB		 6714 .cmd = NL80211_CMD_REGISTER_FRAME,
6715 .doit = nl80211_register_mgmt,
026331c4
JM		 6716 .policy = nl80211_policy,
6717 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6718 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6719 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6720 },
6721 {
2e161f78
JB		 6722 .cmd = NL80211_CMD_FRAME,
6723 .doit = nl80211_tx_mgmt,
026331c4 6724 .policy = nl80211_policy,
f7ca38df
JB		 6725 .flags = GENL_ADMIN_PERM,
6726 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6727 NL80211_FLAG_NEED_RTNL,
6728 },
6729 {
6730 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6731 .doit = nl80211_tx_mgmt_cancel_wait,
6732 .policy = nl80211_policy,
026331c4 6733 .flags = GENL_ADMIN_PERM,
41265714 6734 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6735 NL80211_FLAG_NEED_RTNL,
026331c4 6736 },
ffb9eb3d
KV		 6737 {
6738 .cmd = NL80211_CMD_SET_POWER_SAVE,
6739 .doit = nl80211_set_power_save,
6740 .policy = nl80211_policy,
6741 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6743 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6744 },
6745 {
6746 .cmd = NL80211_CMD_GET_POWER_SAVE,
6747 .doit = nl80211_get_power_save,
6748 .policy = nl80211_policy,
6749 /* can be retrieved by unprivileged users */
4c476991
JB		 6750 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6751 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6752 },
d6dc1a38
JO		 6753 {
6754 .cmd = NL80211_CMD_SET_CQM,
6755 .doit = nl80211_set_cqm,
6756 .policy = nl80211_policy,
6757 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6758 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6759 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6760 },
f444de05
JB		 6761 {
6762 .cmd = NL80211_CMD_SET_CHANNEL,
6763 .doit = nl80211_set_channel,
6764 .policy = nl80211_policy,
6765 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6766 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6767 NL80211_FLAG_NEED_RTNL,
f444de05 6768 },
e8347eba
BJ		 6769 {
6770 .cmd = NL80211_CMD_SET_WDS_PEER,
6771 .doit = nl80211_set_wds_peer,
6772 .policy = nl80211_policy,
6773 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6774 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6775 NL80211_FLAG_NEED_RTNL,
e8347eba 6776 },
29cbe68c
JB		 6777 {
6778 .cmd = NL80211_CMD_JOIN_MESH,
6779 .doit = nl80211_join_mesh,
6780 .policy = nl80211_policy,
6781 .flags = GENL_ADMIN_PERM,
6782 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6783 NL80211_FLAG_NEED_RTNL,
6784 },
6785 {
6786 .cmd = NL80211_CMD_LEAVE_MESH,
6787 .doit = nl80211_leave_mesh,
6788 .policy = nl80211_policy,
6789 .flags = GENL_ADMIN_PERM,
6790 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6791 NL80211_FLAG_NEED_RTNL,
6792 },
ff1b6e69
JB		 6793 {
6794 .cmd = NL80211_CMD_GET_WOWLAN,
6795 .doit = nl80211_get_wowlan,
6796 .policy = nl80211_policy,
6797 /* can be retrieved by unprivileged users */
6798 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6799 NL80211_FLAG_NEED_RTNL,
6800 },
6801 {
6802 .cmd = NL80211_CMD_SET_WOWLAN,
6803 .doit = nl80211_set_wowlan,
6804 .policy = nl80211_policy,
6805 .flags = GENL_ADMIN_PERM,
6806 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6807 NL80211_FLAG_NEED_RTNL,
6808 },
e5497d76
JB		 6809 {
6810 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6811 .doit = nl80211_set_rekey_data,
6812 .policy = nl80211_policy,
6813 .flags = GENL_ADMIN_PERM,
6814 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6815 NL80211_FLAG_NEED_RTNL,
6816 },
109086ce
AN		 6817 {
6818 .cmd = NL80211_CMD_TDLS_MGMT,
6819 .doit = nl80211_tdls_mgmt,
6820 .policy = nl80211_policy,
6821 .flags = GENL_ADMIN_PERM,
6822 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6823 NL80211_FLAG_NEED_RTNL,
6824 },
6825 {
6826 .cmd = NL80211_CMD_TDLS_OPER,
6827 .doit = nl80211_tdls_oper,
6828 .policy = nl80211_policy,
6829 .flags = GENL_ADMIN_PERM,
6830 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6831 NL80211_FLAG_NEED_RTNL,
6832 },
28946da7
JB		 6833 {
6834 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6835 .doit = nl80211_register_unexpected_frame,
6836 .policy = nl80211_policy,
6837 .flags = GENL_ADMIN_PERM,
6838 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6839 NL80211_FLAG_NEED_RTNL,
6840 },
7f6cf311
JB		 6841 {
6842 .cmd = NL80211_CMD_PROBE_CLIENT,
6843 .doit = nl80211_probe_client,
6844 .policy = nl80211_policy,
6845 .flags = GENL_ADMIN_PERM,
6846 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6847 NL80211_FLAG_NEED_RTNL,
6848 },
5e760230
JB		 6849 {
6850 .cmd = NL80211_CMD_REGISTER_BEACONS,
6851 .doit = nl80211_register_beacons,
6852 .policy = nl80211_policy,
6853 .flags = GENL_ADMIN_PERM,
6854 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6855 NL80211_FLAG_NEED_RTNL,
6856 },
1d9d9213
SW		 6857 {
6858 .cmd = NL80211_CMD_SET_NOACK_MAP,
6859 .doit = nl80211_set_noack_map,
6860 .policy = nl80211_policy,
6861 .flags = GENL_ADMIN_PERM,
6862 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6863 NL80211_FLAG_NEED_RTNL,
6864 },
6865
55682965 6866};
9588bbd5 6867
6039f6d2
JM		 6868static struct genl_multicast_group nl80211_mlme_mcgrp = {
6869 .name = "mlme",
6870};
55682965
JB		 6871
6872/* multicast groups */
6873static struct genl_multicast_group nl80211_config_mcgrp = {
6874 .name = "config",
6875};
2a519311
JB		 6876static struct genl_multicast_group nl80211_scan_mcgrp = {
6877 .name = "scan",
6878};
73d54c9e
LR		 6879static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6880 .name = "regulatory",
6881};
55682965
JB		 6882
6883/* notification functions */
6884
6885void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6886{
6887 struct sk_buff *msg;
6888
fd2120ca 6889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6890 if (!msg)
6891 return;
6892
6893 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6894 nlmsg_free(msg);
6895 return;
6896 }
6897
463d0183
JB		 6898 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6899 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6900}
6901
362a415d
JB		 6902static int nl80211_add_scan_req(struct sk_buff *msg,
6903 struct cfg80211_registered_device *rdev)
6904{
6905 struct cfg80211_scan_request *req = rdev->scan_req;
6906 struct nlattr *nest;
6907 int i;
6908
667503dd
JB		 6909 ASSERT_RDEV_LOCK(rdev);
6910
362a415d
JB		 6911 if (WARN_ON(!req))
6912 return 0;
6913
6914 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6915 if (!nest)
6916 goto nla_put_failure;
6917 for (i = 0; i < req->n_ssids; i++)
6918 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6919 nla_nest_end(msg, nest);
6920
6921 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6922 if (!nest)
6923 goto nla_put_failure;
6924 for (i = 0; i < req->n_channels; i++)
6925 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6926 nla_nest_end(msg, nest);
6927
6928 if (req->ie)
6929 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6930
6931 return 0;
6932 nla_put_failure:
6933 return -ENOBUFS;
6934}
6935
a538e2d5
JB		 6936static int nl80211_send_scan_msg(struct sk_buff *msg,
6937 struct cfg80211_registered_device *rdev,
6938 struct net_device *netdev,
6939 u32 pid, u32 seq, int flags,
6940 u32 cmd)
2a519311
JB		 6941{
6942 void *hdr;
6943
6944 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6945 if (!hdr)
6946 return -1;
6947
b5850a7a 6948 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6949 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6950
362a415d
JB		 6951 /* ignore errors and send incomplete event anyway */
6952 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6953
6954 return genlmsg_end(msg, hdr);
6955
6956 nla_put_failure:
6957 genlmsg_cancel(msg, hdr);
6958 return -EMSGSIZE;
6959}
6960
807f8a8c
LC		 6961static int
6962nl80211_send_sched_scan_msg(struct sk_buff *msg,
6963 struct cfg80211_registered_device *rdev,
6964 struct net_device *netdev,
6965 u32 pid, u32 seq, int flags, u32 cmd)
6966{
6967 void *hdr;
6968
6969 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6970 if (!hdr)
6971 return -1;
6972
6973 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6974 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6975
6976 return genlmsg_end(msg, hdr);
6977
6978 nla_put_failure:
6979 genlmsg_cancel(msg, hdr);
6980 return -EMSGSIZE;
6981}
6982
a538e2d5
JB		 6983void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6984 struct net_device *netdev)
6985{
6986 struct sk_buff *msg;
6987
6988 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6989 if (!msg)
6990 return;
6991
6992 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6993 NL80211_CMD_TRIGGER_SCAN) < 0) {
6994 nlmsg_free(msg);
6995 return;
6996 }
6997
463d0183
JB		 6998 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6999 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 7000}
7001
2a519311
JB		 7002void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7003 struct net_device *netdev)
7004{
7005 struct sk_buff *msg;
7006
fd2120ca 7007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7008 if (!msg)
7009 return;
7010
a538e2d5
JB		 7011 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7012 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7013 nlmsg_free(msg);
7014 return;
7015 }
7016
463d0183
JB		 7017 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7018 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7019}
7020
7021void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7022 struct net_device *netdev)
7023{
7024 struct sk_buff *msg;
7025
fd2120ca 7026 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7027 if (!msg)
7028 return;
7029
a538e2d5
JB		 7030 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7031 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7032 nlmsg_free(msg);
7033 return;
7034 }
7035
463d0183
JB		 7036 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7037 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7038}
7039
807f8a8c
LC		 7040void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7041 struct net_device *netdev)
7042{
7043 struct sk_buff *msg;
7044
7045 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7046 if (!msg)
7047 return;
7048
7049 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7050 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7051 nlmsg_free(msg);
7052 return;
7053 }
7054
7055 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7056 nl80211_scan_mcgrp.id, GFP_KERNEL);
7057}
7058
7059void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7060 struct net_device *netdev, u32 cmd)
7061{
7062 struct sk_buff *msg;
7063
7064 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7065 if (!msg)
7066 return;
7067
7068 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7069 nlmsg_free(msg);
7070 return;
7071 }
7072
7073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7074 nl80211_scan_mcgrp.id, GFP_KERNEL);
7075}
7076
73d54c9e
LR		 7077/*
7078 * This can happen on global regulatory changes or device specific settings
7079 * based on custom world regulatory domains.
7080 */
7081void nl80211_send_reg_change_event(struct regulatory_request *request)
7082{
7083 struct sk_buff *msg;
7084 void *hdr;
7085
fd2120ca 7086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7087 if (!msg)
7088 return;
7089
7090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7091 if (!hdr) {
7092 nlmsg_free(msg);
7093 return;
7094 }
7095
7096 /* Userspace can always count this one always being set */
7097 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7098
7099 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7100 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7101 NL80211_REGDOM_TYPE_WORLD);
7102 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7103 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7104 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7105 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7106 request->intersect)
7107 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7108 NL80211_REGDOM_TYPE_INTERSECTION);
7109 else {
7110 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7111 NL80211_REGDOM_TYPE_COUNTRY);
7112 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7113 }
7114
7115 if (wiphy_idx_valid(request->wiphy_idx))
7116 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7117
3b7b72ee 7118 genlmsg_end(msg, hdr);
73d54c9e 7119
bc43b28c 7120 rcu_read_lock();
463d0183 7121 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7122 GFP_ATOMIC);
7123 rcu_read_unlock();
73d54c9e
LR		 7124
7125 return;
7126
7127nla_put_failure:
7128 genlmsg_cancel(msg, hdr);
7129 nlmsg_free(msg);
7130}
7131
6039f6d2
JM		 7132static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7133 struct net_device *netdev,
7134 const u8 *buf, size_t len,
e6d6e342 7135 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7136{
7137 struct sk_buff *msg;
7138 void *hdr;
7139
e6d6e342 7140 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7141 if (!msg)
7142 return;
7143
7144 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7145 if (!hdr) {
7146 nlmsg_free(msg);
7147 return;
7148 }
7149
7150 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7151 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7152 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7153
3b7b72ee 7154 genlmsg_end(msg, hdr);
6039f6d2 7155
463d0183
JB		 7156 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7157 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7158 return;
7159
7160 nla_put_failure:
7161 genlmsg_cancel(msg, hdr);
7162 nlmsg_free(msg);
7163}
7164
7165void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7166 struct net_device *netdev, const u8 *buf,
7167 size_t len, gfp_t gfp)
6039f6d2
JM		 7168{
7169 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7170 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7171}
7172
7173void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7174 struct net_device *netdev, const u8 *buf,
e6d6e342 7175 size_t len, gfp_t gfp)
6039f6d2 7176{
e6d6e342
JB		 7177 nl80211_send_mlme_event(rdev, netdev, buf, len,
7178 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7179}
7180
53b46b84 7181void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7182 struct net_device *netdev, const u8 *buf,
7183 size_t len, gfp_t gfp)
6039f6d2
JM		 7184{
7185 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7186 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7187}
7188
53b46b84
JM		 7189void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7190 struct net_device *netdev, const u8 *buf,
e6d6e342 7191 size_t len, gfp_t gfp)
6039f6d2
JM		 7192{
7193 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7194 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7195}
7196
cf4e594e
JM		 7197void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7198 struct net_device *netdev, const u8 *buf,
7199 size_t len, gfp_t gfp)
7200{
7201 nl80211_send_mlme_event(rdev, netdev, buf, len,
7202 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7203}
7204
7205void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7206 struct net_device *netdev, const u8 *buf,
7207 size_t len, gfp_t gfp)
7208{
7209 nl80211_send_mlme_event(rdev, netdev, buf, len,
7210 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7211}
7212
1b06bb40
LR		 7213static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7214 struct net_device *netdev, int cmd,
e6d6e342 7215 const u8 *addr, gfp_t gfp)
1965c853
JM		 7216{
7217 struct sk_buff *msg;
7218 void *hdr;
7219
e6d6e342 7220 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7221 if (!msg)
7222 return;
7223
7224 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7225 if (!hdr) {
7226 nlmsg_free(msg);
7227 return;
7228 }
7229
7230 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7231 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7232 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7233 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7234
3b7b72ee 7235 genlmsg_end(msg, hdr);
1965c853 7236
463d0183
JB		 7237 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7238 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7239 return;
7240
7241 nla_put_failure:
7242 genlmsg_cancel(msg, hdr);
7243 nlmsg_free(msg);
7244}
7245
7246void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7247 struct net_device *netdev, const u8 *addr,
7248 gfp_t gfp)
1965c853
JM		 7249{
7250 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7251 addr, gfp);
1965c853
JM		 7252}
7253
7254void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7255 struct net_device *netdev, const u8 *addr,
7256 gfp_t gfp)
1965c853 7257{
e6d6e342
JB		 7258 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7259 addr, gfp);
1965c853
JM		 7260}
7261
b23aa676
SO		 7262void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7263 struct net_device *netdev, const u8 *bssid,
7264 const u8 *req_ie, size_t req_ie_len,
7265 const u8 *resp_ie, size_t resp_ie_len,
7266 u16 status, gfp_t gfp)
7267{
7268 struct sk_buff *msg;
7269 void *hdr;
7270
7271 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7272 if (!msg)
7273 return;
7274
7275 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7276 if (!hdr) {
7277 nlmsg_free(msg);
7278 return;
7279 }
7280
7281 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7282 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7283 if (bssid)
7284 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7285 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7286 if (req_ie)
7287 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7288 if (resp_ie)
7289 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7290
3b7b72ee 7291 genlmsg_end(msg, hdr);
b23aa676 7292
463d0183
JB		 7293 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7294 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7295 return;
7296
7297 nla_put_failure:
7298 genlmsg_cancel(msg, hdr);
7299 nlmsg_free(msg);
7300
7301}
7302
7303void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7304 struct net_device *netdev, const u8 *bssid,
7305 const u8 *req_ie, size_t req_ie_len,
7306 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7307{
7308 struct sk_buff *msg;
7309 void *hdr;
7310
7311 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7312 if (!msg)
7313 return;
7314
7315 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7316 if (!hdr) {
7317 nlmsg_free(msg);
7318 return;
7319 }
7320
7321 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7322 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7323 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7324 if (req_ie)
7325 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7326 if (resp_ie)
7327 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7328
3b7b72ee 7329 genlmsg_end(msg, hdr);
b23aa676 7330
463d0183
JB		 7331 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7332 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7333 return;
7334
7335 nla_put_failure:
7336 genlmsg_cancel(msg, hdr);
7337 nlmsg_free(msg);
7338
7339}
7340
7341void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7342 struct net_device *netdev, u16 reason,
667503dd 7343 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7344{
7345 struct sk_buff *msg;
7346 void *hdr;
7347
667503dd 7348 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7349 if (!msg)
7350 return;
7351
7352 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7353 if (!hdr) {
7354 nlmsg_free(msg);
7355 return;
7356 }
7357
7358 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7359 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7360 if (from_ap && reason)
7361 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7362 if (from_ap)
7363 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7364 if (ie)
7365 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7366
3b7b72ee 7367 genlmsg_end(msg, hdr);
b23aa676 7368
463d0183
JB		 7369 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7370 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7371 return;
7372
7373 nla_put_failure:
7374 genlmsg_cancel(msg, hdr);
7375 nlmsg_free(msg);
7376
7377}
7378
04a773ad
JB		 7379void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7380 struct net_device *netdev, const u8 *bssid,
7381 gfp_t gfp)
7382{
7383 struct sk_buff *msg;
7384 void *hdr;
7385
fd2120ca 7386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7387 if (!msg)
7388 return;
7389
7390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7391 if (!hdr) {
7392 nlmsg_free(msg);
7393 return;
7394 }
7395
7396 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7397 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7398 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7399
3b7b72ee 7400 genlmsg_end(msg, hdr);
04a773ad 7401
463d0183
JB		 7402 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7403 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7404 return;
7405
7406 nla_put_failure:
7407 genlmsg_cancel(msg, hdr);
7408 nlmsg_free(msg);
7409}
7410
c93b5e71
JC		 7411void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7412 struct net_device *netdev,
7413 const u8 *macaddr, const u8* ie, u8 ie_len,
7414 gfp_t gfp)
7415{
7416 struct sk_buff *msg;
7417 void *hdr;
7418
7419 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7420 if (!msg)
7421 return;
7422
7423 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7424 if (!hdr) {
7425 nlmsg_free(msg);
7426 return;
7427 }
7428
7429 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7430 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7431 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7432 if (ie_len && ie)
7433 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7434
3b7b72ee 7435 genlmsg_end(msg, hdr);
c93b5e71
JC		 7436
7437 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7438 nl80211_mlme_mcgrp.id, gfp);
7439 return;
7440
7441 nla_put_failure:
7442 genlmsg_cancel(msg, hdr);
7443 nlmsg_free(msg);
7444}
7445
a3b8b056
JM		 7446void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7447 struct net_device *netdev, const u8 *addr,
7448 enum nl80211_key_type key_type, int key_id,
e6d6e342 7449 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7450{
7451 struct sk_buff *msg;
7452 void *hdr;
7453
e6d6e342 7454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7455 if (!msg)
7456 return;
7457
7458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7459 if (!hdr) {
7460 nlmsg_free(msg);
7461 return;
7462 }
7463
7464 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7465 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7466 if (addr)
7467 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7468 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7469 if (key_id != -1)
7470 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7471 if (tsc)
7472 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7473
3b7b72ee 7474 genlmsg_end(msg, hdr);
a3b8b056 7475
463d0183
JB		 7476 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7477 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7478 return;
7479
7480 nla_put_failure:
7481 genlmsg_cancel(msg, hdr);
7482 nlmsg_free(msg);
7483}
7484
6bad8766
LR		 7485void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7486 struct ieee80211_channel *channel_before,
7487 struct ieee80211_channel *channel_after)
7488{
7489 struct sk_buff *msg;
7490 void *hdr;
7491 struct nlattr *nl_freq;
7492
fd2120ca 7493 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7494 if (!msg)
7495 return;
7496
7497 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7498 if (!hdr) {
7499 nlmsg_free(msg);
7500 return;
7501 }
7502
7503 /*
7504 * Since we are applying the beacon hint to a wiphy we know its
7505 * wiphy_idx is valid
7506 */
7507 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7508
7509 /* Before */
7510 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7511 if (!nl_freq)
7512 goto nla_put_failure;
7513 if (nl80211_msg_put_channel(msg, channel_before))
7514 goto nla_put_failure;
7515 nla_nest_end(msg, nl_freq);
7516
7517 /* After */
7518 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7519 if (!nl_freq)
7520 goto nla_put_failure;
7521 if (nl80211_msg_put_channel(msg, channel_after))
7522 goto nla_put_failure;
7523 nla_nest_end(msg, nl_freq);
7524
3b7b72ee 7525 genlmsg_end(msg, hdr);
6bad8766 7526
463d0183
JB		 7527 rcu_read_lock();
7528 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7529 GFP_ATOMIC);
7530 rcu_read_unlock();
6bad8766
LR		 7531
7532 return;
7533
7534nla_put_failure:
7535 genlmsg_cancel(msg, hdr);
7536 nlmsg_free(msg);
7537}
7538
9588bbd5
JM		 7539static void nl80211_send_remain_on_chan_event(
7540 int cmd, struct cfg80211_registered_device *rdev,
7541 struct net_device *netdev, u64 cookie,
7542 struct ieee80211_channel *chan,
7543 enum nl80211_channel_type channel_type,
7544 unsigned int duration, gfp_t gfp)
7545{
7546 struct sk_buff *msg;
7547 void *hdr;
7548
7549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7550 if (!msg)
7551 return;
7552
7553 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7554 if (!hdr) {
7555 nlmsg_free(msg);
7556 return;
7557 }
7558
7559 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7560 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7561 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7562 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7563 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7564
7565 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7566 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7567
3b7b72ee 7568 genlmsg_end(msg, hdr);
9588bbd5
JM		 7569
7570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7571 nl80211_mlme_mcgrp.id, gfp);
7572 return;
7573
7574 nla_put_failure:
7575 genlmsg_cancel(msg, hdr);
7576 nlmsg_free(msg);
7577}
7578
7579void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7580 struct net_device *netdev, u64 cookie,
7581 struct ieee80211_channel *chan,
7582 enum nl80211_channel_type channel_type,
7583 unsigned int duration, gfp_t gfp)
7584{
7585 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7586 rdev, netdev, cookie, chan,
7587 channel_type, duration, gfp);
7588}
7589
7590void nl80211_send_remain_on_channel_cancel(
7591 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7592 u64 cookie, struct ieee80211_channel *chan,
7593 enum nl80211_channel_type channel_type, gfp_t gfp)
7594{
7595 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7596 rdev, netdev, cookie, chan,
7597 channel_type, 0, gfp);
7598}
7599
98b62183
JB		 7600void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7601 struct net_device *dev, const u8 *mac_addr,
7602 struct station_info *sinfo, gfp_t gfp)
7603{
7604 struct sk_buff *msg;
7605
7606 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7607 if (!msg)
7608 return;
7609
66266b3a
JL		 7610 if (nl80211_send_station(msg, 0, 0, 0,
7611 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 7612 nlmsg_free(msg);
7613 return;
7614 }
7615
7616 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7617 nl80211_mlme_mcgrp.id, gfp);
7618}
7619
ec15e68b
JM		 7620void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7621 struct net_device *dev, const u8 *mac_addr,
7622 gfp_t gfp)
7623{
7624 struct sk_buff *msg;
7625 void *hdr;
7626
7627 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7628 if (!msg)
7629 return;
7630
7631 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7632 if (!hdr) {
7633 nlmsg_free(msg);
7634 return;
7635 }
7636
7637 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7638 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7639
3b7b72ee 7640 genlmsg_end(msg, hdr);
ec15e68b
JM		 7641
7642 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7643 nl80211_mlme_mcgrp.id, gfp);
7644 return;
7645
7646 nla_put_failure:
7647 genlmsg_cancel(msg, hdr);
7648 nlmsg_free(msg);
7649}
7650
b92ab5d8
JB		 7651static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7652 const u8 *addr, gfp_t gfp)
28946da7
JB		 7653{
7654 struct wireless_dev *wdev = dev->ieee80211_ptr;
7655 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7656 struct sk_buff *msg;
7657 void *hdr;
7658 int err;
7659 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7660
7661 if (!nlpid)
7662 return false;
7663
7664 msg = nlmsg_new(100, gfp);
7665 if (!msg)
7666 return true;
7667
b92ab5d8 7668 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7669 if (!hdr) {
7670 nlmsg_free(msg);
7671 return true;
7672 }
7673
7674 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7675 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7676 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7677
7678 err = genlmsg_end(msg, hdr);
7679 if (err < 0) {
7680 nlmsg_free(msg);
7681 return true;
7682 }
7683
7684 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7685 return true;
7686
7687 nla_put_failure:
7688 genlmsg_cancel(msg, hdr);
7689 nlmsg_free(msg);
7690 return true;
7691}
7692
b92ab5d8
JB		 7693bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7694{
7695 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7696 addr, gfp);
7697}
7698
7699bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7700 const u8 *addr, gfp_t gfp)
7701{
7702 return __nl80211_unexpected_frame(dev,
7703 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7704 addr, gfp);
7705}
7706
2e161f78
JB		 7707int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7708 struct net_device *netdev, u32 nlpid,
804483e9
JB		 7709 int freq, int sig_dbm,
7710 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7711{
7712 struct sk_buff *msg;
7713 void *hdr;
026331c4
JM		 7714
7715 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7716 if (!msg)
7717 return -ENOMEM;
7718
2e161f78 7719 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7720 if (!hdr) {
7721 nlmsg_free(msg);
7722 return -ENOMEM;
7723 }
7724
7725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7726 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7727 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
804483e9
JB		 7728 if (sig_dbm)
7729 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
026331c4
JM		 7730 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7731
3b7b72ee 7732 genlmsg_end(msg, hdr);
026331c4 7733
3b7b72ee 7734 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7735
7736 nla_put_failure:
7737 genlmsg_cancel(msg, hdr);
7738 nlmsg_free(msg);
7739 return -ENOBUFS;
7740}
7741
2e161f78
JB		 7742void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7743 struct net_device *netdev, u64 cookie,
7744 const u8 *buf, size_t len, bool ack,
7745 gfp_t gfp)
026331c4
JM		 7746{
7747 struct sk_buff *msg;
7748 void *hdr;
7749
7750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7751 if (!msg)
7752 return;
7753
2e161f78 7754 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7755 if (!hdr) {
7756 nlmsg_free(msg);
7757 return;
7758 }
7759
7760 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7761 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7762 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7763 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7764 if (ack)
7765 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7766
3b7b72ee 7767 genlmsg_end(msg, hdr);
026331c4
JM		 7768
7769 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7770 return;
7771
7772 nla_put_failure:
7773 genlmsg_cancel(msg, hdr);
7774 nlmsg_free(msg);
7775}
7776
d6dc1a38
JO		 7777void
7778nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7779 struct net_device *netdev,
7780 enum nl80211_cqm_rssi_threshold_event rssi_event,
7781 gfp_t gfp)
7782{
7783 struct sk_buff *msg;
7784 struct nlattr *pinfoattr;
7785 void *hdr;
7786
7787 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7788 if (!msg)
7789 return;
7790
7791 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7792 if (!hdr) {
7793 nlmsg_free(msg);
7794 return;
7795 }
7796
7797 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7798 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7799
7800 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7801 if (!pinfoattr)
7802 goto nla_put_failure;
7803
7804 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7805 rssi_event);
7806
7807 nla_nest_end(msg, pinfoattr);
7808
3b7b72ee 7809 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7810
7811 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7812 nl80211_mlme_mcgrp.id, gfp);
7813 return;
7814
7815 nla_put_failure:
7816 genlmsg_cancel(msg, hdr);
7817 nlmsg_free(msg);
7818}
7819
e5497d76
JB		 7820void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7821 struct net_device *netdev, const u8 *bssid,
7822 const u8 *replay_ctr, gfp_t gfp)
7823{
7824 struct sk_buff *msg;
7825 struct nlattr *rekey_attr;
7826 void *hdr;
7827
7828 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7829 if (!msg)
7830 return;
7831
7832 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7833 if (!hdr) {
7834 nlmsg_free(msg);
7835 return;
7836 }
7837
7838 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7839 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7840 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7841
7842 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7843 if (!rekey_attr)
7844 goto nla_put_failure;
7845
7846 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7847 NL80211_REPLAY_CTR_LEN, replay_ctr);
7848
7849 nla_nest_end(msg, rekey_attr);
7850
3b7b72ee 7851 genlmsg_end(msg, hdr);
e5497d76
JB		 7852
7853 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7854 nl80211_mlme_mcgrp.id, gfp);
7855 return;
7856
7857 nla_put_failure:
7858 genlmsg_cancel(msg, hdr);
7859 nlmsg_free(msg);
7860}
7861
c9df56b4
JM		 7862void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7863 struct net_device *netdev, int index,
7864 const u8 *bssid, bool preauth, gfp_t gfp)
7865{
7866 struct sk_buff *msg;
7867 struct nlattr *attr;
7868 void *hdr;
7869
7870 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7871 if (!msg)
7872 return;
7873
7874 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7875 if (!hdr) {
7876 nlmsg_free(msg);
7877 return;
7878 }
7879
7880 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7881 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7882
7883 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7884 if (!attr)
7885 goto nla_put_failure;
7886
7887 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7888 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7889 if (preauth)
7890 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7891
7892 nla_nest_end(msg, attr);
7893
3b7b72ee 7894 genlmsg_end(msg, hdr);
c9df56b4
JM		 7895
7896 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7897 nl80211_mlme_mcgrp.id, gfp);
7898 return;
7899
7900 nla_put_failure:
7901 genlmsg_cancel(msg, hdr);
7902 nlmsg_free(msg);
7903}
7904
c063dbf5
JB		 7905void
7906nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7907 struct net_device *netdev, const u8 *peer,
7908 u32 num_packets, gfp_t gfp)
7909{
7910 struct sk_buff *msg;
7911 struct nlattr *pinfoattr;
7912 void *hdr;
7913
7914 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7915 if (!msg)
7916 return;
7917
7918 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7919 if (!hdr) {
7920 nlmsg_free(msg);
7921 return;
7922 }
7923
7924 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7925 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7926 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7927
7928 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7929 if (!pinfoattr)
7930 goto nla_put_failure;
7931
7932 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7933
7934 nla_nest_end(msg, pinfoattr);
7935
3b7b72ee 7936 genlmsg_end(msg, hdr);
c063dbf5
JB		 7937
7938 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7939 nl80211_mlme_mcgrp.id, gfp);
7940 return;
7941
7942 nla_put_failure:
7943 genlmsg_cancel(msg, hdr);
7944 nlmsg_free(msg);
7945}
7946
7f6cf311
JB		 7947void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7948 u64 cookie, bool acked, gfp_t gfp)
7949{
7950 struct wireless_dev *wdev = dev->ieee80211_ptr;
7951 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7952 struct sk_buff *msg;
7953 void *hdr;
7954 int err;
7955
7956 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7957 if (!msg)
7958 return;
7959
7960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7961 if (!hdr) {
7962 nlmsg_free(msg);
7963 return;
7964 }
7965
7966 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7967 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7968 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7969 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7970 if (acked)
7971 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7972
7973 err = genlmsg_end(msg, hdr);
7974 if (err < 0) {
7975 nlmsg_free(msg);
7976 return;
7977 }
7978
7979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7980 nl80211_mlme_mcgrp.id, gfp);
7981 return;
7982
7983 nla_put_failure:
7984 genlmsg_cancel(msg, hdr);
7985 nlmsg_free(msg);
7986}
7987EXPORT_SYMBOL(cfg80211_probe_status);
7988
5e760230
JB		 7989void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7990 const u8 *frame, size_t len,
804483e9 7991 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 7992{
7993 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7994 struct sk_buff *msg;
7995 void *hdr;
7996 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7997
7998 if (!nlpid)
7999 return;
8000
8001 msg = nlmsg_new(len + 100, gfp);
8002 if (!msg)
8003 return;
8004
8005 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8006 if (!hdr) {
8007 nlmsg_free(msg);
8008 return;
8009 }
8010
8011 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8012 if (freq)
8013 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
804483e9
JB		 8014 if (sig_dbm)
8015 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
5e760230
JB		 8016 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8017
8018 genlmsg_end(msg, hdr);
8019
8020 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8021 return;
8022
8023 nla_put_failure:
8024 genlmsg_cancel(msg, hdr);
8025 nlmsg_free(msg);
8026}
8027EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8028
026331c4
JM		 8029static int nl80211_netlink_notify(struct notifier_block * nb,
8030 unsigned long state,
8031 void *_notify)
8032{
8033 struct netlink_notify *notify = _notify;
8034 struct cfg80211_registered_device *rdev;
8035 struct wireless_dev *wdev;
8036
8037 if (state != NETLINK_URELEASE)
8038 return NOTIFY_DONE;
8039
8040 rcu_read_lock();
8041
5e760230 8042 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8043 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8044 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8045 if (rdev->ap_beacons_nlpid == notify->pid)
8046 rdev->ap_beacons_nlpid = 0;
8047 }
026331c4
JM		 8048
8049 rcu_read_unlock();
8050
8051 return NOTIFY_DONE;
8052}
8053
8054static struct notifier_block nl80211_netlink_notifier = {
8055 .notifier_call = nl80211_netlink_notify,
8056};
8057
55682965
JB		 8058/* initialisation/exit functions */
8059
8060int nl80211_init(void)
8061{
0d63cbb5 8062 int err;
55682965 8063
0d63cbb5
MM		 8064 err = genl_register_family_with_ops(&nl80211_fam,
8065 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8066 if (err)
8067 return err;
8068
55682965
JB		 8069 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8070 if (err)
8071 goto err_out;
8072
2a519311
JB		 8073 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8074 if (err)
8075 goto err_out;
8076
73d54c9e
LR		 8077 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8078 if (err)
8079 goto err_out;
8080
6039f6d2
JM		 8081 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8082 if (err)
8083 goto err_out;
8084
aff89a9b
JB		 8085#ifdef CONFIG_NL80211_TESTMODE
8086 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8087 if (err)
8088 goto err_out;
8089#endif
8090
026331c4
JM		 8091 err = netlink_register_notifier(&nl80211_netlink_notifier);
8092 if (err)
8093 goto err_out;
8094
55682965
JB		 8095 return 0;
8096 err_out:
8097 genl_unregister_family(&nl80211_fam);
8098 return err;
8099}
8100
8101void nl80211_exit(void)
8102{
026331c4 8103 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8104 genl_unregister_family(&nl80211_fam);
8105}
Linux kernel - Deliverables
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