]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blame - net/wireless/nl80211.c
projects / mirror_ubuntu-bionic-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
mac80211: fix association beacon wait timeout
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
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{
1107 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1108 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1109 !tb[NL80211_TXQ_ATTR_AIFS])
1110 return -EINVAL;
1111
1112 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
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
1118 return 0;
1119}
1120
f444de05
JB		 1121static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1122{
1123 /*
1124 * You can only set the channel explicitly for AP, mesh
1125 * and WDS type interfaces; all others have their channel
1126 * managed via their respective "establish a connection"
1127 * command (connect, join, ...)
1128 *
1129 * Monitors are special as they are normally slaved to
1130 * whatever else is going on, so they behave as though
1131 * you tried setting the wiphy channel itself.
1132 */
1133 return !wdev ||
1134 wdev->iftype == NL80211_IFTYPE_AP ||
1135 wdev->iftype == NL80211_IFTYPE_WDS ||
1136 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1137 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1138 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1139}
1140
1141static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1142 struct wireless_dev *wdev,
1143 struct genl_info *info)
1144{
1145 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1146 u32 freq;
1147 int result;
1148
1149 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1150 return -EINVAL;
1151
1152 if (!nl80211_can_set_dev_channel(wdev))
1153 return -EOPNOTSUPP;
1154
1155 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1156 channel_type = nla_get_u32(info->attrs[
1157 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1158 if (channel_type != NL80211_CHAN_NO_HT &&
1159 channel_type != NL80211_CHAN_HT20 &&
1160 channel_type != NL80211_CHAN_HT40PLUS &&
1161 channel_type != NL80211_CHAN_HT40MINUS)
1162 return -EINVAL;
1163 }
1164
1165 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1166
1167 mutex_lock(&rdev->devlist_mtx);
1168 if (wdev) {
1169 wdev_lock(wdev);
1170 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1171 wdev_unlock(wdev);
1172 } else {
1173 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1174 }
1175 mutex_unlock(&rdev->devlist_mtx);
1176
1177 return result;
1178}
1179
1180static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1181{
4c476991
JB		 1182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1183 struct net_device *netdev = info->user_ptr[1];
f444de05 1184
4c476991 1185 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1186}
1187
e8347eba
BJ		 1188static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1189{
43b19952
JB		 1190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1191 struct net_device *dev = info->user_ptr[1];
1192 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1193 const u8 *bssid;
e8347eba
BJ		 1194
1195 if (!info->attrs[NL80211_ATTR_MAC])
1196 return -EINVAL;
1197
43b19952
JB		 1198 if (netif_running(dev))
1199 return -EBUSY;
e8347eba 1200
43b19952
JB		 1201 if (!rdev->ops->set_wds_peer)
1202 return -EOPNOTSUPP;
e8347eba 1203
43b19952
JB		 1204 if (wdev->iftype != NL80211_IFTYPE_WDS)
1205 return -EOPNOTSUPP;
e8347eba
BJ		 1206
1207 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1208 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1209}
1210
1211
55682965
JB		 1212static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1213{
1214 struct cfg80211_registered_device *rdev;
f444de05
JB		 1215 struct net_device *netdev = NULL;
1216 struct wireless_dev *wdev;
a1e567c8 1217 int result = 0, rem_txq_params = 0;
31888487 1218 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1219 u32 changed;
1220 u8 retry_short = 0, retry_long = 0;
1221 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1222 u8 coverage_class = 0;
55682965 1223
f444de05
JB		 1224 /*
1225 * Try to find the wiphy and netdev. Normally this
1226 * function shouldn't need the netdev, but this is
1227 * done for backward compatibility -- previously
1228 * setting the channel was done per wiphy, but now
1229 * it is per netdev. Previous userland like hostapd
1230 * also passed a netdev to set_wiphy, so that it is
1231 * possible to let that go to the right netdev!
1232 */
4bbf4d56
JB		 1233 mutex_lock(&cfg80211_mutex);
1234
f444de05
JB		 1235 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1236 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1237
1238 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1239 if (netdev && netdev->ieee80211_ptr) {
1240 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1241 mutex_lock(&rdev->mtx);
1242 } else
1243 netdev = NULL;
4bbf4d56
JB		 1244 }
1245
f444de05
JB		 1246 if (!netdev) {
1247 rdev = __cfg80211_rdev_from_info(info);
1248 if (IS_ERR(rdev)) {
1249 mutex_unlock(&cfg80211_mutex);
4c476991 1250 return PTR_ERR(rdev);
f444de05
JB		 1251 }
1252 wdev = NULL;
1253 netdev = NULL;
1254 result = 0;
1255
1256 mutex_lock(&rdev->mtx);
1257 } else if (netif_running(netdev) &&
1258 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1259 wdev = netdev->ieee80211_ptr;
1260 else
1261 wdev = NULL;
1262
1263 /*
1264 * end workaround code, by now the rdev is available
1265 * and locked, and wdev may or may not be NULL.
1266 */
4bbf4d56
JB		 1267
1268 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1269 result = cfg80211_dev_rename(
1270 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1271
1272 mutex_unlock(&cfg80211_mutex);
1273
1274 if (result)
1275 goto bad_res;
31888487
JM		 1276
1277 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1278 struct ieee80211_txq_params txq_params;
1279 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1280
1281 if (!rdev->ops->set_txq_params) {
1282 result = -EOPNOTSUPP;
1283 goto bad_res;
1284 }
1285
f70f01c2
EP		 1286 if (!netdev) {
1287 result = -EINVAL;
1288 goto bad_res;
1289 }
1290
133a3ff2
JB		 1291 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1292 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1293 result = -EINVAL;
1294 goto bad_res;
1295 }
1296
31888487
JM		 1297 nla_for_each_nested(nl_txq_params,
1298 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1299 rem_txq_params) {
1300 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1301 nla_data(nl_txq_params),
1302 nla_len(nl_txq_params),
1303 txq_params_policy);
1304 result = parse_txq_params(tb, &txq_params);
1305 if (result)
1306 goto bad_res;
1307
1308 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1309 netdev,
31888487
JM		 1310 &txq_params);
1311 if (result)
1312 goto bad_res;
1313 }
1314 }
55682965 1315
72bdcf34 1316 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1317 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1318 if (result)
1319 goto bad_res;
1320 }
1321
98d2ff8b
JO		 1322 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1323 enum nl80211_tx_power_setting type;
1324 int idx, mbm = 0;
1325
1326 if (!rdev->ops->set_tx_power) {
60ea385f 1327 result = -EOPNOTSUPP;
98d2ff8b
JO		 1328 goto bad_res;
1329 }
1330
1331 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1332 type = nla_get_u32(info->attrs[idx]);
1333
1334 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1335 (type != NL80211_TX_POWER_AUTOMATIC)) {
1336 result = -EINVAL;
1337 goto bad_res;
1338 }
1339
1340 if (type != NL80211_TX_POWER_AUTOMATIC) {
1341 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1342 mbm = nla_get_u32(info->attrs[idx]);
1343 }
1344
1345 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1346 if (result)
1347 goto bad_res;
1348 }
1349
afe0cbf8
BR		 1350 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1351 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1352 u32 tx_ant, rx_ant;
7f531e03
BR		 1353 if ((!rdev->wiphy.available_antennas_tx &&
1354 !rdev->wiphy.available_antennas_rx) ||
1355 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1356 result = -EOPNOTSUPP;
1357 goto bad_res;
1358 }
1359
1360 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1361 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1362
a7ffac95 1363 /* reject antenna configurations which don't match the
7f531e03
BR		 1364 * available antenna masks, except for the "all" mask */
1365 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1366 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1367 result = -EINVAL;
1368 goto bad_res;
1369 }
1370
7f531e03
BR		 1371 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1372 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1373
afe0cbf8
BR		 1374 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1375 if (result)
1376 goto bad_res;
1377 }
1378
b9a5f8ca
JM		 1379 changed = 0;
1380
1381 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1382 retry_short = nla_get_u8(
1383 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1384 if (retry_short == 0) {
1385 result = -EINVAL;
1386 goto bad_res;
1387 }
1388 changed |= WIPHY_PARAM_RETRY_SHORT;
1389 }
1390
1391 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1392 retry_long = nla_get_u8(
1393 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1394 if (retry_long == 0) {
1395 result = -EINVAL;
1396 goto bad_res;
1397 }
1398 changed |= WIPHY_PARAM_RETRY_LONG;
1399 }
1400
1401 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1402 frag_threshold = nla_get_u32(
1403 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1404 if (frag_threshold < 256) {
1405 result = -EINVAL;
1406 goto bad_res;
1407 }
1408 if (frag_threshold != (u32) -1) {
1409 /*
1410 * Fragments (apart from the last one) are required to
1411 * have even length. Make the fragmentation code
1412 * simpler by stripping LSB should someone try to use
1413 * odd threshold value.
1414 */
1415 frag_threshold &= ~0x1;
1416 }
1417 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1418 }
1419
1420 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1421 rts_threshold = nla_get_u32(
1422 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1423 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1424 }
1425
81077e82
LT		 1426 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1427 coverage_class = nla_get_u8(
1428 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1429 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1430 }
1431
b9a5f8ca
JM		 1432 if (changed) {
1433 u8 old_retry_short, old_retry_long;
1434 u32 old_frag_threshold, old_rts_threshold;
81077e82 1435 u8 old_coverage_class;
b9a5f8ca
JM		 1436
1437 if (!rdev->ops->set_wiphy_params) {
1438 result = -EOPNOTSUPP;
1439 goto bad_res;
1440 }
1441
1442 old_retry_short = rdev->wiphy.retry_short;
1443 old_retry_long = rdev->wiphy.retry_long;
1444 old_frag_threshold = rdev->wiphy.frag_threshold;
1445 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1446 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1447
1448 if (changed & WIPHY_PARAM_RETRY_SHORT)
1449 rdev->wiphy.retry_short = retry_short;
1450 if (changed & WIPHY_PARAM_RETRY_LONG)
1451 rdev->wiphy.retry_long = retry_long;
1452 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1453 rdev->wiphy.frag_threshold = frag_threshold;
1454 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1455 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1456 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1457 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1458
1459 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1460 if (result) {
1461 rdev->wiphy.retry_short = old_retry_short;
1462 rdev->wiphy.retry_long = old_retry_long;
1463 rdev->wiphy.frag_threshold = old_frag_threshold;
1464 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1465 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1466 }
1467 }
72bdcf34 1468
306d6112 1469 bad_res:
4bbf4d56 1470 mutex_unlock(&rdev->mtx);
f444de05
JB		 1471 if (netdev)
1472 dev_put(netdev);
55682965
JB		 1473 return result;
1474}
1475
1476
1477static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1478 struct cfg80211_registered_device *rdev,
55682965
JB		 1479 struct net_device *dev)
1480{
1481 void *hdr;
1482
1483 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1484 if (!hdr)
1485 return -1;
1486
1487 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1488 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1489 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1490 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1491
1492 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1493 rdev->devlist_generation ^
1494 (cfg80211_rdev_list_generation << 2));
1495
55682965
JB		 1496 return genlmsg_end(msg, hdr);
1497
1498 nla_put_failure:
bc3ed28c
TG		 1499 genlmsg_cancel(msg, hdr);
1500 return -EMSGSIZE;
55682965
JB		 1501}
1502
1503static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1504{
1505 int wp_idx = 0;
1506 int if_idx = 0;
1507 int wp_start = cb->args[0];
1508 int if_start = cb->args[1];
f5ea9120 1509 struct cfg80211_registered_device *rdev;
55682965
JB		 1510 struct wireless_dev *wdev;
1511
a1794390 1512 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1513 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1514 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1515 continue;
bba95fef
JB		 1516 if (wp_idx < wp_start) {
1517 wp_idx++;
55682965 1518 continue;
bba95fef 1519 }
55682965
JB		 1520 if_idx = 0;
1521
f5ea9120
JB		 1522 mutex_lock(&rdev->devlist_mtx);
1523 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1524 if (if_idx < if_start) {
1525 if_idx++;
55682965 1526 continue;
bba95fef 1527 }
55682965
JB		 1528 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1529 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1530 rdev, wdev->netdev) < 0) {
1531 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1532 goto out;
1533 }
1534 if_idx++;
55682965 1535 }
f5ea9120 1536 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1537
1538 wp_idx++;
55682965 1539 }
bba95fef 1540 out:
a1794390 1541 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1542
1543 cb->args[0] = wp_idx;
1544 cb->args[1] = if_idx;
1545
1546 return skb->len;
1547}
1548
1549static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1550{
1551 struct sk_buff *msg;
4c476991
JB		 1552 struct cfg80211_registered_device *dev = info->user_ptr[0];
1553 struct net_device *netdev = info->user_ptr[1];
55682965 1554
fd2120ca 1555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1556 if (!msg)
4c476991 1557 return -ENOMEM;
55682965 1558
d726405a 1559 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1560 dev, netdev) < 0) {
1561 nlmsg_free(msg);
1562 return -ENOBUFS;
1563 }
55682965 1564
134e6375 1565 return genlmsg_reply(msg, info);
55682965
JB		 1566}
1567
66f7ac50
MW		 1568static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1569 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1570 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1571 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1572 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1573 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1574};
1575
1576static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1577{
1578 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1579 int flag;
1580
1581 *mntrflags = 0;
1582
1583 if (!nla)
1584 return -EINVAL;
1585
1586 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1587 nla, mntr_flags_policy))
1588 return -EINVAL;
1589
1590 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1591 if (flags[flag])
1592 *mntrflags |= (1<<flag);
1593
1594 return 0;
1595}
1596
9bc383de 1597static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1598 struct net_device *netdev, u8 use_4addr,
1599 enum nl80211_iftype iftype)
9bc383de 1600{
ad4bb6f8 1601 if (!use_4addr) {
f350a0a8 1602 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1603 return -EBUSY;
9bc383de 1604 return 0;
ad4bb6f8 1605 }
9bc383de
JB		 1606
1607 switch (iftype) {
1608 case NL80211_IFTYPE_AP_VLAN:
1609 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1610 return 0;
1611 break;
1612 case NL80211_IFTYPE_STATION:
1613 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1614 return 0;
1615 break;
1616 default:
1617 break;
1618 }
1619
1620 return -EOPNOTSUPP;
1621}
1622
55682965
JB		 1623static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1624{
4c476991 1625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1626 struct vif_params params;
e36d56b6 1627 int err;
04a773ad 1628 enum nl80211_iftype otype, ntype;
4c476991 1629 struct net_device *dev = info->user_ptr[1];
92ffe055 1630 u32 _flags, *flags = NULL;
ac7f9cfa 1631 bool change = false;
55682965 1632
2ec600d6
LCC		 1633 memset(&params, 0, sizeof(params));
1634
04a773ad 1635 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1636
723b038d 1637 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1638 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1639 if (otype != ntype)
ac7f9cfa 1640 change = true;
4c476991
JB		 1641 if (ntype > NL80211_IFTYPE_MAX)
1642 return -EINVAL;
723b038d
JB		 1643 }
1644
92ffe055 1645 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1646 struct wireless_dev *wdev = dev->ieee80211_ptr;
1647
4c476991
JB		 1648 if (ntype != NL80211_IFTYPE_MESH_POINT)
1649 return -EINVAL;
29cbe68c
JB		 1650 if (netif_running(dev))
1651 return -EBUSY;
1652
1653 wdev_lock(wdev);
1654 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1655 IEEE80211_MAX_MESH_ID_LEN);
1656 wdev->mesh_id_up_len =
1657 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1658 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1659 wdev->mesh_id_up_len);
1660 wdev_unlock(wdev);
2ec600d6
LCC		 1661 }
1662
8b787643
FF		 1663 if (info->attrs[NL80211_ATTR_4ADDR]) {
1664 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1665 change = true;
ad4bb6f8 1666 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1667 if (err)
4c476991 1668 return err;
8b787643
FF		 1669 } else {
1670 params.use_4addr = -1;
1671 }
1672
92ffe055 1673 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1674 if (ntype != NL80211_IFTYPE_MONITOR)
1675 return -EINVAL;
92ffe055
JB		 1676 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1677 &_flags);
ac7f9cfa 1678 if (err)
4c476991 1679 return err;
ac7f9cfa
JB		 1680
1681 flags = &_flags;
1682 change = true;
92ffe055 1683 }
3b85875a 1684
ac7f9cfa 1685 if (change)
3d54d255 1686 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1687 else
1688 err = 0;
60719ffd 1689
9bc383de
JB		 1690 if (!err && params.use_4addr != -1)
1691 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1692
55682965
JB		 1693 return err;
1694}
1695
1696static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1697{
4c476991 1698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1699 struct vif_params params;
f9e10ce4 1700 struct net_device *dev;
55682965
JB		 1701 int err;
1702 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1703 u32 flags;
55682965 1704
2ec600d6
LCC		 1705 memset(&params, 0, sizeof(params));
1706
55682965
JB		 1707 if (!info->attrs[NL80211_ATTR_IFNAME])
1708 return -EINVAL;
1709
1710 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1711 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1712 if (type > NL80211_IFTYPE_MAX)
1713 return -EINVAL;
1714 }
1715
79c97e97 1716 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1717 !(rdev->wiphy.interface_modes & (1 << type)))
1718 return -EOPNOTSUPP;
55682965 1719
9bc383de 1720 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1721 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1722 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1723 if (err)
4c476991 1724 return err;
9bc383de 1725 }
8b787643 1726
66f7ac50
MW		 1727 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1728 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1729 &flags);
f9e10ce4 1730 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1731 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1732 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1733 if (IS_ERR(dev))
1734 return PTR_ERR(dev);
2ec600d6 1735
29cbe68c
JB		 1736 if (type == NL80211_IFTYPE_MESH_POINT &&
1737 info->attrs[NL80211_ATTR_MESH_ID]) {
1738 struct wireless_dev *wdev = dev->ieee80211_ptr;
1739
1740 wdev_lock(wdev);
1741 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1742 IEEE80211_MAX_MESH_ID_LEN);
1743 wdev->mesh_id_up_len =
1744 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1745 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1746 wdev->mesh_id_up_len);
1747 wdev_unlock(wdev);
1748 }
1749
f9e10ce4 1750 return 0;
55682965
JB		 1751}
1752
1753static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1754{
4c476991
JB		 1755 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1756 struct net_device *dev = info->user_ptr[1];
55682965 1757
4c476991
JB		 1758 if (!rdev->ops->del_virtual_intf)
1759 return -EOPNOTSUPP;
55682965 1760
4c476991 1761 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1762}
1763
1d9d9213
SW		 1764static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1765{
1766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1767 struct net_device *dev = info->user_ptr[1];
1768 u16 noack_map;
1769
1770 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1771 return -EINVAL;
1772
1773 if (!rdev->ops->set_noack_map)
1774 return -EOPNOTSUPP;
1775
1776 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1777
1778 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1779}
1780
41ade00f
JB		 1781struct get_key_cookie {
1782 struct sk_buff *msg;
1783 int error;
b9454e83 1784 int idx;
41ade00f
JB		 1785};
1786
1787static void get_key_callback(void *c, struct key_params *params)
1788{
b9454e83 1789 struct nlattr *key;
41ade00f
JB		 1790 struct get_key_cookie *cookie = c;
1791
1792 if (params->key)
1793 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1794 params->key_len, params->key);
1795
1796 if (params->seq)
1797 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1798 params->seq_len, params->seq);
1799
1800 if (params->cipher)
1801 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1802 params->cipher);
1803
b9454e83
JB		 1804 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1805 if (!key)
1806 goto nla_put_failure;
1807
1808 if (params->key)
1809 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1810 params->key_len, params->key);
1811
1812 if (params->seq)
1813 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1814 params->seq_len, params->seq);
1815
1816 if (params->cipher)
1817 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1818 params->cipher);
1819
1820 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1821
1822 nla_nest_end(cookie->msg, key);
1823
41ade00f
JB		 1824 return;
1825 nla_put_failure:
1826 cookie->error = 1;
1827}
1828
1829static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1830{
4c476991 1831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1832 int err;
4c476991 1833 struct net_device *dev = info->user_ptr[1];
41ade00f 1834 u8 key_idx = 0;
e31b8213
JB		 1835 const u8 *mac_addr = NULL;
1836 bool pairwise;
41ade00f
JB		 1837 struct get_key_cookie cookie = {
1838 .error = 0,
1839 };
1840 void *hdr;
1841 struct sk_buff *msg;
1842
1843 if (info->attrs[NL80211_ATTR_KEY_IDX])
1844 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1845
3cfcf6ac 1846 if (key_idx > 5)
41ade00f
JB		 1847 return -EINVAL;
1848
1849 if (info->attrs[NL80211_ATTR_MAC])
1850 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1851
e31b8213
JB		 1852 pairwise = !!mac_addr;
1853 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1854 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1855 if (kt >= NUM_NL80211_KEYTYPES)
1856 return -EINVAL;
1857 if (kt != NL80211_KEYTYPE_GROUP &&
1858 kt != NL80211_KEYTYPE_PAIRWISE)
1859 return -EINVAL;
1860 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1861 }
1862
4c476991
JB		 1863 if (!rdev->ops->get_key)
1864 return -EOPNOTSUPP;
41ade00f 1865
fd2120ca 1866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1867 if (!msg)
1868 return -ENOMEM;
41ade00f
JB		 1869
1870 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1871 NL80211_CMD_NEW_KEY);
4c476991
JB		 1872 if (IS_ERR(hdr))
1873 return PTR_ERR(hdr);
41ade00f
JB		 1874
1875 cookie.msg = msg;
b9454e83 1876 cookie.idx = key_idx;
41ade00f
JB		 1877
1878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1879 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1880 if (mac_addr)
1881 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1882
e31b8213
JB		 1883 if (pairwise && mac_addr &&
1884 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1885 return -ENOENT;
1886
1887 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1888 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1889
1890 if (err)
6c95e2a2 1891 goto free_msg;
41ade00f
JB		 1892
1893 if (cookie.error)
1894 goto nla_put_failure;
1895
1896 genlmsg_end(msg, hdr);
4c476991 1897 return genlmsg_reply(msg, info);
41ade00f
JB		 1898
1899 nla_put_failure:
1900 err = -ENOBUFS;
6c95e2a2 1901 free_msg:
41ade00f 1902 nlmsg_free(msg);
41ade00f
JB		 1903 return err;
1904}
1905
1906static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1907{
4c476991 1908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1909 struct key_parse key;
41ade00f 1910 int err;
4c476991 1911 struct net_device *dev = info->user_ptr[1];
41ade00f 1912
b9454e83
JB		 1913 err = nl80211_parse_key(info, &key);
1914 if (err)
1915 return err;
41ade00f 1916
b9454e83 1917 if (key.idx < 0)
41ade00f
JB		 1918 return -EINVAL;
1919
b9454e83
JB		 1920 /* only support setting default key */
1921 if (!key.def && !key.defmgmt)
41ade00f
JB		 1922 return -EINVAL;
1923
dbd2fd65 1924 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1925
dbd2fd65
JB		 1926 if (key.def) {
1927 if (!rdev->ops->set_default_key) {
1928 err = -EOPNOTSUPP;
1929 goto out;
1930 }
41ade00f 1931
dbd2fd65
JB		 1932 err = nl80211_key_allowed(dev->ieee80211_ptr);
1933 if (err)
1934 goto out;
1935
dbd2fd65
JB		 1936 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1937 key.def_uni, key.def_multi);
1938
1939 if (err)
1940 goto out;
fffd0934 1941
3d23e349 1942#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1943 dev->ieee80211_ptr->wext.default_key = key.idx;
1944#endif
1945 } else {
1946 if (key.def_uni || !key.def_multi) {
1947 err = -EINVAL;
1948 goto out;
1949 }
1950
1951 if (!rdev->ops->set_default_mgmt_key) {
1952 err = -EOPNOTSUPP;
1953 goto out;
1954 }
1955
1956 err = nl80211_key_allowed(dev->ieee80211_ptr);
1957 if (err)
1958 goto out;
1959
1960 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1961 dev, key.idx);
1962 if (err)
1963 goto out;
1964
1965#ifdef CONFIG_CFG80211_WEXT
1966 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1967#endif
dbd2fd65
JB		 1968 }
1969
1970 out:
fffd0934 1971 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1972
41ade00f
JB		 1973 return err;
1974}
1975
1976static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1977{
4c476991 1978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1979 int err;
4c476991 1980 struct net_device *dev = info->user_ptr[1];
b9454e83 1981 struct key_parse key;
e31b8213 1982 const u8 *mac_addr = NULL;
41ade00f 1983
b9454e83
JB		 1984 err = nl80211_parse_key(info, &key);
1985 if (err)
1986 return err;
41ade00f 1987
b9454e83 1988 if (!key.p.key)
41ade00f
JB		 1989 return -EINVAL;
1990
41ade00f
JB		 1991 if (info->attrs[NL80211_ATTR_MAC])
1992 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1993
e31b8213
JB		 1994 if (key.type == -1) {
1995 if (mac_addr)
1996 key.type = NL80211_KEYTYPE_PAIRWISE;
1997 else
1998 key.type = NL80211_KEYTYPE_GROUP;
1999 }
2000
2001 /* for now */
2002 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2003 key.type != NL80211_KEYTYPE_GROUP)
2004 return -EINVAL;
2005
4c476991
JB		 2006 if (!rdev->ops->add_key)
2007 return -EOPNOTSUPP;
25e47c18 2008
e31b8213
JB		 2009 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2010 key.type == NL80211_KEYTYPE_PAIRWISE,
2011 mac_addr))
4c476991 2012 return -EINVAL;
41ade00f 2013
fffd0934
JB		 2014 wdev_lock(dev->ieee80211_ptr);
2015 err = nl80211_key_allowed(dev->ieee80211_ptr);
2016 if (!err)
2017 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2018 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2019 mac_addr, &key.p);
2020 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2021
41ade00f
JB		 2022 return err;
2023}
2024
2025static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2026{
4c476991 2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2028 int err;
4c476991 2029 struct net_device *dev = info->user_ptr[1];
41ade00f 2030 u8 *mac_addr = NULL;
b9454e83 2031 struct key_parse key;
41ade00f 2032
b9454e83
JB		 2033 err = nl80211_parse_key(info, &key);
2034 if (err)
2035 return err;
41ade00f
JB		 2036
2037 if (info->attrs[NL80211_ATTR_MAC])
2038 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2039
e31b8213
JB		 2040 if (key.type == -1) {
2041 if (mac_addr)
2042 key.type = NL80211_KEYTYPE_PAIRWISE;
2043 else
2044 key.type = NL80211_KEYTYPE_GROUP;
2045 }
2046
2047 /* for now */
2048 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2049 key.type != NL80211_KEYTYPE_GROUP)
2050 return -EINVAL;
2051
4c476991
JB		 2052 if (!rdev->ops->del_key)
2053 return -EOPNOTSUPP;
41ade00f 2054
fffd0934
JB		 2055 wdev_lock(dev->ieee80211_ptr);
2056 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2057
2058 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2059 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2060 err = -ENOENT;
2061
fffd0934 2062 if (!err)
e31b8213
JB		 2063 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2064 key.type == NL80211_KEYTYPE_PAIRWISE,
2065 mac_addr);
41ade00f 2066
3d23e349 2067#ifdef CONFIG_CFG80211_WEXT
08645126 2068 if (!err) {
b9454e83 2069 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2070 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2071 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2072 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2073 }
2074#endif
fffd0934 2075 wdev_unlock(dev->ieee80211_ptr);
08645126 2076
41ade00f
JB		 2077 return err;
2078}
2079
8860020e
JB		 2080static int nl80211_parse_beacon(struct genl_info *info,
2081 struct cfg80211_beacon_data *bcn)
ed1b6cc7 2082{
8860020e 2083 bool haveinfo = false;
ed1b6cc7 2084
9946ecfb
JM		 2085 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2086 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2087 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2088 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2089 return -EINVAL;
2090
8860020e 2091 memset(bcn, 0, sizeof(*bcn));
ed1b6cc7 2092
ed1b6cc7 2093 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
8860020e
JB		 2094 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2095 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2096 if (!bcn->head_len)
2097 return -EINVAL;
2098 haveinfo = true;
ed1b6cc7
JB		 2099 }
2100
2101 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
8860020e
JB		 2102 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2103 bcn->tail_len =
ed1b6cc7 2104 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
8860020e 2105 haveinfo = true;
ed1b6cc7
JB		 2106 }
2107
4c476991
JB		 2108 if (!haveinfo)
2109 return -EINVAL;
3b85875a 2110
9946ecfb 2111 if (info->attrs[NL80211_ATTR_IE]) {
8860020e
JB		 2112 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2113 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9946ecfb
JM		 2114 }
2115
2116 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
8860020e 2117 bcn->proberesp_ies =
9946ecfb 2118 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
8860020e 2119 bcn->proberesp_ies_len =
9946ecfb
JM		 2120 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2121 }
2122
2123 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
8860020e 2124 bcn->assocresp_ies =
9946ecfb 2125 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
8860020e 2126 bcn->assocresp_ies_len =
9946ecfb
JM		 2127 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2128 }
2129
00f740e1 2130 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
8860020e 2131 bcn->probe_resp =
00f740e1 2132 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
8860020e 2133 bcn->probe_resp_len =
00f740e1
AN		 2134 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2135 }
2136
8860020e
JB		 2137 return 0;
2138}
2139
2140static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2141{
2142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2143 struct net_device *dev = info->user_ptr[1];
2144 struct wireless_dev *wdev = dev->ieee80211_ptr;
2145 struct cfg80211_ap_settings params;
2146 int err;
2147
2148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2149 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2150 return -EOPNOTSUPP;
2151
2152 if (!rdev->ops->start_ap)
2153 return -EOPNOTSUPP;
2154
2155 if (wdev->beacon_interval)
2156 return -EALREADY;
2157
2158 memset(&params, 0, sizeof(params));
2159
2160 /* these are required for START_AP */
2161 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2162 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2163 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2164 return -EINVAL;
2165
2166 err = nl80211_parse_beacon(info, &params.beacon);
2167 if (err)
2168 return err;
2169
2170 params.beacon_interval =
2171 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2172 params.dtim_period =
2173 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2174
2175 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2176 if (err)
2177 return err;
2178
2179 /*
2180 * In theory, some of these attributes should be required here
2181 * but since they were not used when the command was originally
2182 * added, keep them optional for old user space programs to let
2183 * them continue to work with drivers that do not need the
2184 * additional information -- drivers must check!
2185 */
2186 if (info->attrs[NL80211_ATTR_SSID]) {
2187 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2188 params.ssid_len =
2189 nla_len(info->attrs[NL80211_ATTR_SSID]);
2190 if (params.ssid_len == 0 ||
2191 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2192 return -EINVAL;
2193 }
2194
2195 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2196 params.hidden_ssid = nla_get_u32(
2197 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2198 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2199 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2200 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2201 return -EINVAL;
2202 }
2203
2204 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2205
2206 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2207 params.auth_type = nla_get_u32(
2208 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2209 if (!nl80211_valid_auth_type(params.auth_type))
2210 return -EINVAL;
2211 } else
2212 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2213
2214 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2215 NL80211_MAX_NR_CIPHER_SUITES);
2216 if (err)
2217 return err;
2218
1b658f11
VT		 2219 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2220 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2221 return -EOPNOTSUPP;
2222 params.inactivity_timeout = nla_get_u16(
2223 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2224 }
2225
8860020e
JB		 2226 err = rdev->ops->start_ap(&rdev->wiphy, dev, &params);
2227 if (!err)
2228 wdev->beacon_interval = params.beacon_interval;
56d1893d 2229 return err;
ed1b6cc7
JB		 2230}
2231
8860020e
JB		 2232static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2233{
2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2235 struct net_device *dev = info->user_ptr[1];
2236 struct wireless_dev *wdev = dev->ieee80211_ptr;
2237 struct cfg80211_beacon_data params;
2238 int err;
2239
2240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2241 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2242 return -EOPNOTSUPP;
2243
2244 if (!rdev->ops->change_beacon)
2245 return -EOPNOTSUPP;
2246
2247 if (!wdev->beacon_interval)
2248 return -EINVAL;
2249
2250 err = nl80211_parse_beacon(info, &params);
2251 if (err)
2252 return err;
2253
2254 return rdev->ops->change_beacon(&rdev->wiphy, dev, &params);
2255}
2256
2257static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
ed1b6cc7 2258{
4c476991
JB		 2259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2260 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2261 struct wireless_dev *wdev = dev->ieee80211_ptr;
2262 int err;
ed1b6cc7 2263
8860020e 2264 if (!rdev->ops->stop_ap)
4c476991 2265 return -EOPNOTSUPP;
ed1b6cc7 2266
074ac8df 2267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2269 return -EOPNOTSUPP;
3b85875a 2270
8860020e
JB		 2271 if (!wdev->beacon_interval)
2272 return -ENOENT;
2273
2274 err = rdev->ops->stop_ap(&rdev->wiphy, dev);
56d1893d
JB		 2275 if (!err)
2276 wdev->beacon_interval = 0;
2277 return err;
ed1b6cc7
JB		 2278}
2279
5727ef1b
JB		 2280static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2281 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2282 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2283 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2284 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2285 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2286 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2287};
2288
eccb8e8f 2289static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2290 enum nl80211_iftype iftype,
eccb8e8f 2291 struct station_parameters *params)
5727ef1b
JB		 2292{
2293 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2294 struct nlattr *nla;
5727ef1b
JB		 2295 int flag;
2296
eccb8e8f
JB		 2297 /*
2298 * Try parsing the new attribute first so userspace
2299 * can specify both for older kernels.
2300 */
2301 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2302 if (nla) {
2303 struct nl80211_sta_flag_update *sta_flags;
2304
2305 sta_flags = nla_data(nla);
2306 params->sta_flags_mask = sta_flags->mask;
2307 params->sta_flags_set = sta_flags->set;
2308 if ((params->sta_flags_mask |
2309 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2310 return -EINVAL;
2311 return 0;
2312 }
2313
2314 /* if present, parse the old attribute */
5727ef1b 2315
eccb8e8f 2316 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2317 if (!nla)
2318 return 0;
2319
2320 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2321 nla, sta_flags_policy))
2322 return -EINVAL;
2323
bdd3ae3d
JB		 2324 /*
2325 * Only allow certain flags for interface types so that
2326 * other attributes are silently ignored. Remember that
2327 * this is backward compatibility code with old userspace
2328 * and shouldn't be hit in other cases anyway.
2329 */
2330 switch (iftype) {
2331 case NL80211_IFTYPE_AP:
2332 case NL80211_IFTYPE_AP_VLAN:
2333 case NL80211_IFTYPE_P2P_GO:
2334 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2335 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2336 BIT(NL80211_STA_FLAG_WME) |
2337 BIT(NL80211_STA_FLAG_MFP);
2338 break;
2339 case NL80211_IFTYPE_P2P_CLIENT:
2340 case NL80211_IFTYPE_STATION:
2341 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2342 BIT(NL80211_STA_FLAG_TDLS_PEER);
2343 break;
2344 case NL80211_IFTYPE_MESH_POINT:
2345 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2346 BIT(NL80211_STA_FLAG_MFP) |
2347 BIT(NL80211_STA_FLAG_AUTHORIZED);
2348 default:
2349 return -EINVAL;
2350 }
5727ef1b
JB		 2351
2352 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2353 if (flags[flag])
eccb8e8f 2354 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2355
2356 return 0;
2357}
2358
c8dcfd8a
FF		 2359static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2360 int attr)
2361{
2362 struct nlattr *rate;
2363 u16 bitrate;
2364
2365 rate = nla_nest_start(msg, attr);
2366 if (!rate)
2367 goto nla_put_failure;
2368
2369 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2370 bitrate = cfg80211_calculate_bitrate(info);
2371 if (bitrate > 0)
2372 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2373
2374 if (info->flags & RATE_INFO_FLAGS_MCS)
2375 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2376 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2377 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2378 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2379 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2380
2381 nla_nest_end(msg, rate);
2382 return true;
2383
2384nla_put_failure:
2385 return false;
2386}
2387
fd5b74dc 2388static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
66266b3a
JL		 2389 int flags,
2390 struct cfg80211_registered_device *rdev,
2391 struct net_device *dev,
98b62183 2392 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2393{
2394 void *hdr;
f4263c98 2395 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2396
2397 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2398 if (!hdr)
2399 return -1;
2400
2401 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2402 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2403
f5ea9120
JB		 2404 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2405
2ec600d6
LCC		 2406 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2407 if (!sinfoattr)
fd5b74dc 2408 goto nla_put_failure;
ebe27c91
MSS		 2409 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2410 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2411 sinfo->connected_time);
2ec600d6
LCC		 2412 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2413 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2414 sinfo->inactive_time);
2415 if (sinfo->filled & STATION_INFO_RX_BYTES)
2416 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2417 sinfo->rx_bytes);
2418 if (sinfo->filled & STATION_INFO_TX_BYTES)
2419 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2420 sinfo->tx_bytes);
2421 if (sinfo->filled & STATION_INFO_LLID)
2422 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2423 sinfo->llid);
2424 if (sinfo->filled & STATION_INFO_PLID)
2425 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2426 sinfo->plid);
2427 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2428 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2429 sinfo->plink_state);
66266b3a
JL		 2430 switch (rdev->wiphy.signal_type) {
2431 case CFG80211_SIGNAL_TYPE_MBM:
2432 if (sinfo->filled & STATION_INFO_SIGNAL)
2433 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2434 sinfo->signal);
2435 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2436 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2437 sinfo->signal_avg);
2438 break;
2439 default:
2440 break;
2441 }
420e7fab 2442 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2443 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2444 NL80211_STA_INFO_TX_BITRATE))
2445 goto nla_put_failure;
2446 }
2447 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2448 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2449 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2450 goto nla_put_failure;
420e7fab 2451 }
98c8a60a
JM		 2452 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2453 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2454 sinfo->rx_packets);
2455 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2456 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2457 sinfo->tx_packets);
b206b4ef
BR		 2458 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2459 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2460 sinfo->tx_retries);
2461 if (sinfo->filled & STATION_INFO_TX_FAILED)
2462 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2463 sinfo->tx_failed);
a85e1d55
PS		 2464 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2465 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2466 sinfo->beacon_loss_count);
f4263c98
PS		 2467 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2468 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2469 if (!bss_param)
2470 goto nla_put_failure;
2471
2472 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2473 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2474 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2475 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2476 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2477 NLA_PUT_FLAG(msg,
2478 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2479 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2480 sinfo->bss_param.dtim_period);
2481 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2482 sinfo->bss_param.beacon_interval);
2483
2484 nla_nest_end(msg, bss_param);
2485 }
bb6e753e
HS		 2486 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2487 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2488 sizeof(struct nl80211_sta_flag_update),
2489 &sinfo->sta_flags);
2ec600d6 2490 nla_nest_end(msg, sinfoattr);
fd5b74dc 2491
040bdf71 2492 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2493 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2494 sinfo->assoc_req_ies);
2495
fd5b74dc
JB		 2496 return genlmsg_end(msg, hdr);
2497
2498 nla_put_failure:
bc3ed28c
TG		 2499 genlmsg_cancel(msg, hdr);
2500 return -EMSGSIZE;
fd5b74dc
JB		 2501}
2502
2ec600d6 2503static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2504 struct netlink_callback *cb)
2ec600d6 2505{
2ec600d6
LCC		 2506 struct station_info sinfo;
2507 struct cfg80211_registered_device *dev;
bba95fef 2508 struct net_device *netdev;
2ec600d6 2509 u8 mac_addr[ETH_ALEN];
bba95fef 2510 int sta_idx = cb->args[1];
2ec600d6 2511 int err;
2ec600d6 2512
67748893
JB		 2513 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2514 if (err)
2515 return err;
bba95fef
JB		 2516
2517 if (!dev->ops->dump_station) {
eec60b03 2518 err = -EOPNOTSUPP;
bba95fef
JB		 2519 goto out_err;
2520 }
2521
bba95fef 2522 while (1) {
f612cedf 2523 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2524 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2525 mac_addr, &sinfo);
2526 if (err == -ENOENT)
2527 break;
2528 if (err)
3b85875a 2529 goto out_err;
bba95fef
JB		 2530
2531 if (nl80211_send_station(skb,
2532 NETLINK_CB(cb->skb).pid,
2533 cb->nlh->nlmsg_seq, NLM_F_MULTI,
66266b3a 2534 dev, netdev, mac_addr,
bba95fef
JB		 2535 &sinfo) < 0)
2536 goto out;
2537
2538 sta_idx++;
2539 }
2540
2541
2542 out:
2543 cb->args[1] = sta_idx;
2544 err = skb->len;
bba95fef 2545 out_err:
67748893 2546 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2547
2548 return err;
2ec600d6 2549}
fd5b74dc 2550
5727ef1b
JB		 2551static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2552{
4c476991
JB		 2553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2554 struct net_device *dev = info->user_ptr[1];
2ec600d6 2555 struct station_info sinfo;
fd5b74dc
JB		 2556 struct sk_buff *msg;
2557 u8 *mac_addr = NULL;
4c476991 2558 int err;
fd5b74dc 2559
2ec600d6 2560 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2561
2562 if (!info->attrs[NL80211_ATTR_MAC])
2563 return -EINVAL;
2564
2565 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2566
4c476991
JB		 2567 if (!rdev->ops->get_station)
2568 return -EOPNOTSUPP;
3b85875a 2569
4c476991 2570 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2571 if (err)
4c476991 2572 return err;
2ec600d6 2573
fd2120ca 2574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2575 if (!msg)
4c476991 2576 return -ENOMEM;
fd5b74dc
JB		 2577
2578 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
66266b3a 2579 rdev, dev, mac_addr, &sinfo) < 0) {
4c476991
JB		 2580 nlmsg_free(msg);
2581 return -ENOBUFS;
2582 }
3b85875a 2583
4c476991 2584 return genlmsg_reply(msg, info);
5727ef1b
JB		 2585}
2586
2587/*
c258d2de 2588 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2589 */
80b99899
JB		 2590static struct net_device *get_vlan(struct genl_info *info,
2591 struct cfg80211_registered_device *rdev)
5727ef1b 2592{
463d0183 2593 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2594 struct net_device *v;
2595 int ret;
2596
2597 if (!vlanattr)
2598 return NULL;
2599
2600 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2601 if (!v)
2602 return ERR_PTR(-ENODEV);
2603
2604 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2605 ret = -EINVAL;
2606 goto error;
5727ef1b 2607 }
80b99899
JB		 2608
2609 if (!netif_running(v)) {
2610 ret = -ENETDOWN;
2611 goto error;
2612 }
2613
2614 return v;
2615 error:
2616 dev_put(v);
2617 return ERR_PTR(ret);
5727ef1b
JB		 2618}
2619
2620static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2621{
4c476991 2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2623 int err;
4c476991 2624 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2625 struct station_parameters params;
2626 u8 *mac_addr = NULL;
2627
2628 memset(&params, 0, sizeof(params));
2629
2630 params.listen_interval = -1;
57cf8043 2631 params.plink_state = -1;
5727ef1b
JB		 2632
2633 if (info->attrs[NL80211_ATTR_STA_AID])
2634 return -EINVAL;
2635
2636 if (!info->attrs[NL80211_ATTR_MAC])
2637 return -EINVAL;
2638
2639 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2640
2641 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2642 params.supported_rates =
2643 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2644 params.supported_rates_len =
2645 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2646 }
2647
2648 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2649 params.listen_interval =
2650 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2651
36aedc90
JM		 2652 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2653 params.ht_capa =
2654 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2655
bdd90d5e
JB		 2656 if (!rdev->ops->change_station)
2657 return -EOPNOTSUPP;
2658
bdd3ae3d 2659 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2660 return -EINVAL;
2661
2ec600d6
LCC		 2662 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2663 params.plink_action =
2664 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2665
9c3990aa
JC		 2666 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2667 params.plink_state =
2668 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2669
a97f4424
JB		 2670 switch (dev->ieee80211_ptr->iftype) {
2671 case NL80211_IFTYPE_AP:
2672 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2673 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2674 /* disallow mesh-specific things */
2675 if (params.plink_action)
bdd90d5e
JB		 2676 return -EINVAL;
2677
2678 /* TDLS can't be set, ... */
2679 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2680 return -EINVAL;
2681 /*
2682 * ... but don't bother the driver with it. This works around
2683 * a hostapd/wpa_supplicant issue -- it always includes the
2684 * TLDS_PEER flag in the mask even for AP mode.
2685 */
2686 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2687
2688 /* accept only the listed bits */
2689 if (params.sta_flags_mask &
2690 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2691 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2692 BIT(NL80211_STA_FLAG_WME) |
2693 BIT(NL80211_STA_FLAG_MFP)))
2694 return -EINVAL;
2695
2696 /* must be last in here for error handling */
2697 params.vlan = get_vlan(info, rdev);
2698 if (IS_ERR(params.vlan))
2699 return PTR_ERR(params.vlan);
a97f4424 2700 break;
074ac8df 2701 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2702 case NL80211_IFTYPE_STATION:
bdd90d5e
JB		 2703 /*
2704 * Don't allow userspace to change the TDLS_PEER flag,
2705 * but silently ignore attempts to change it since we
2706 * don't have state here to verify that it doesn't try
2707 * to change the flag.
2708 */
2709 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2710 /* fall through */
2711 case NL80211_IFTYPE_ADHOC:
2712 /* disallow things sta doesn't support */
2713 if (params.plink_action)
2714 return -EINVAL;
2715 if (params.ht_capa)
2716 return -EINVAL;
2717 if (params.listen_interval >= 0)
2718 return -EINVAL;
bdd90d5e
JB		 2719 /* reject any changes other than AUTHORIZED */
2720 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2721 return -EINVAL;
a97f4424
JB		 2722 break;
2723 case NL80211_IFTYPE_MESH_POINT:
2724 /* disallow things mesh doesn't support */
2725 if (params.vlan)
bdd90d5e 2726 return -EINVAL;
a97f4424 2727 if (params.ht_capa)
bdd90d5e 2728 return -EINVAL;
a97f4424 2729 if (params.listen_interval >= 0)
bdd90d5e
JB		 2730 return -EINVAL;
2731 /*
2732 * No special handling for TDLS here -- the userspace
2733 * mesh code doesn't have this bug.
2734 */
b39c48fa
JC		 2735 if (params.sta_flags_mask &
2736 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2737 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2738 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2739 return -EINVAL;
a97f4424
JB		 2740 break;
2741 default:
bdd90d5e 2742 return -EOPNOTSUPP;
034d655e
JB		 2743 }
2744
bdd90d5e 2745 /* be aware of params.vlan when changing code here */
5727ef1b 2746
79c97e97 2747 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2748
5727ef1b
JB		 2749 if (params.vlan)
2750 dev_put(params.vlan);
3b85875a 2751
5727ef1b
JB		 2752 return err;
2753}
2754
c75786c9
EP		 2755static struct nla_policy
2756nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2757 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2758 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2759};
2760
5727ef1b
JB		 2761static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2762{
4c476991 2763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2764 int err;
4c476991 2765 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2766 struct station_parameters params;
2767 u8 *mac_addr = NULL;
2768
2769 memset(&params, 0, sizeof(params));
2770
2771 if (!info->attrs[NL80211_ATTR_MAC])
2772 return -EINVAL;
2773
5727ef1b
JB		 2774 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2775 return -EINVAL;
2776
2777 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2778 return -EINVAL;
2779
0e956c13
TLSC		 2780 if (!info->attrs[NL80211_ATTR_STA_AID])
2781 return -EINVAL;
2782
5727ef1b
JB		 2783 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2784 params.supported_rates =
2785 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2786 params.supported_rates_len =
2787 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2788 params.listen_interval =
2789 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2790
0e956c13
TLSC		 2791 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2792 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2793 return -EINVAL;
51b50fbe 2794
36aedc90
JM		 2795 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2796 params.ht_capa =
2797 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2798
96b78dff
JC		 2799 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2800 params.plink_action =
2801 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2802
bdd90d5e
JB		 2803 if (!rdev->ops->add_station)
2804 return -EOPNOTSUPP;
2805
bdd3ae3d 2806 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2807 return -EINVAL;
2808
bdd90d5e
JB		 2809 switch (dev->ieee80211_ptr->iftype) {
2810 case NL80211_IFTYPE_AP:
2811 case NL80211_IFTYPE_AP_VLAN:
2812 case NL80211_IFTYPE_P2P_GO:
2813 /* parse WME attributes if sta is WME capable */
2814 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2815 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2816 info->attrs[NL80211_ATTR_STA_WME]) {
2817 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2818 struct nlattr *nla;
2819
2820 nla = info->attrs[NL80211_ATTR_STA_WME];
2821 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2822 nl80211_sta_wme_policy);
2823 if (err)
2824 return err;
2825
2826 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2827 params.uapsd_queues =
2828 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2829 if (params.uapsd_queues &
2830 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2831 return -EINVAL;
c75786c9 2832
bdd90d5e
JB		 2833 if (tb[NL80211_STA_WME_MAX_SP])
2834 params.max_sp =
2835 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 2836
bdd90d5e
JB		 2837 if (params.max_sp &
2838 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2839 return -EINVAL;
4319e193 2840
bdd90d5e
JB		 2841 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2842 }
2843 /* TDLS peers cannot be added */
2844 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 2845 return -EINVAL;
bdd90d5e
JB		 2846 /* but don't bother the driver with it */
2847 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 2848
bdd90d5e
JB		 2849 /* must be last in here for error handling */
2850 params.vlan = get_vlan(info, rdev);
2851 if (IS_ERR(params.vlan))
2852 return PTR_ERR(params.vlan);
2853 break;
2854 case NL80211_IFTYPE_MESH_POINT:
2855 /* TDLS peers cannot be added */
2856 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2857 return -EINVAL;
2858 break;
2859 case NL80211_IFTYPE_STATION:
2860 /* Only TDLS peers can be added */
2861 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2862 return -EINVAL;
2863 /* Can only add if TDLS ... */
2864 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2865 return -EOPNOTSUPP;
2866 /* ... with external setup is supported */
2867 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2868 return -EOPNOTSUPP;
2869 break;
2870 default:
2871 return -EOPNOTSUPP;
c75786c9
EP		 2872 }
2873
bdd90d5e 2874 /* be aware of params.vlan when changing code here */
5727ef1b 2875
79c97e97 2876 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2877
5727ef1b
JB		 2878 if (params.vlan)
2879 dev_put(params.vlan);
5727ef1b
JB		 2880 return err;
2881}
2882
2883static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2884{
4c476991
JB		 2885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2886 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2887 u8 *mac_addr = NULL;
2888
2889 if (info->attrs[NL80211_ATTR_MAC])
2890 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2891
e80cf853 2892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2894 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2895 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2896 return -EINVAL;
5727ef1b 2897
4c476991
JB		 2898 if (!rdev->ops->del_station)
2899 return -EOPNOTSUPP;
3b85875a 2900
4c476991 2901 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2902}
2903
2ec600d6
LCC		 2904static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2905 int flags, struct net_device *dev,
2906 u8 *dst, u8 *next_hop,
2907 struct mpath_info *pinfo)
2908{
2909 void *hdr;
2910 struct nlattr *pinfoattr;
2911
2912 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2913 if (!hdr)
2914 return -1;
2915
2916 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2917 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2918 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2919
f5ea9120
JB		 2920 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2921
2ec600d6
LCC		 2922 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2923 if (!pinfoattr)
2924 goto nla_put_failure;
2925 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2926 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2927 pinfo->frame_qlen);
d19b3bf6
RP		 2928 if (pinfo->filled & MPATH_INFO_SN)
2929 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2930 pinfo->sn);
2ec600d6
LCC		 2931 if (pinfo->filled & MPATH_INFO_METRIC)
2932 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2933 pinfo->metric);
2934 if (pinfo->filled & MPATH_INFO_EXPTIME)
2935 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2936 pinfo->exptime);
2937 if (pinfo->filled & MPATH_INFO_FLAGS)
2938 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2939 pinfo->flags);
2940 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2941 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2942 pinfo->discovery_timeout);
2943 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2944 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2945 pinfo->discovery_retries);
2946
2947 nla_nest_end(msg, pinfoattr);
2948
2949 return genlmsg_end(msg, hdr);
2950
2951 nla_put_failure:
bc3ed28c
TG		 2952 genlmsg_cancel(msg, hdr);
2953 return -EMSGSIZE;
2ec600d6
LCC		 2954}
2955
2956static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2957 struct netlink_callback *cb)
2ec600d6 2958{
2ec600d6
LCC		 2959 struct mpath_info pinfo;
2960 struct cfg80211_registered_device *dev;
bba95fef 2961 struct net_device *netdev;
2ec600d6
LCC		 2962 u8 dst[ETH_ALEN];
2963 u8 next_hop[ETH_ALEN];
bba95fef 2964 int path_idx = cb->args[1];
2ec600d6 2965 int err;
2ec600d6 2966
67748893
JB		 2967 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2968 if (err)
2969 return err;
bba95fef
JB		 2970
2971 if (!dev->ops->dump_mpath) {
eec60b03 2972 err = -EOPNOTSUPP;
bba95fef
JB		 2973 goto out_err;
2974 }
2975
eec60b03
JM		 2976 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2977 err = -EOPNOTSUPP;
0448b5fc 2978 goto out_err;
eec60b03
JM		 2979 }
2980
bba95fef
JB		 2981 while (1) {
2982 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2983 dst, next_hop, &pinfo);
2984 if (err == -ENOENT)
2ec600d6 2985 break;
bba95fef 2986 if (err)
3b85875a 2987 goto out_err;
2ec600d6 2988
bba95fef
JB		 2989 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2990 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2991 netdev, dst, next_hop,
2992 &pinfo) < 0)
2993 goto out;
2ec600d6 2994
bba95fef 2995 path_idx++;
2ec600d6 2996 }
2ec600d6 2997
2ec600d6 2998
bba95fef
JB		 2999 out:
3000 cb->args[1] = path_idx;
3001 err = skb->len;
bba95fef 3002 out_err:
67748893 3003 nl80211_finish_netdev_dump(dev);
bba95fef 3004 return err;
2ec600d6
LCC		 3005}
3006
3007static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3008{
4c476991 3009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 3010 int err;
4c476991 3011 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3012 struct mpath_info pinfo;
3013 struct sk_buff *msg;
3014 u8 *dst = NULL;
3015 u8 next_hop[ETH_ALEN];
3016
3017 memset(&pinfo, 0, sizeof(pinfo));
3018
3019 if (!info->attrs[NL80211_ATTR_MAC])
3020 return -EINVAL;
3021
3022 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3023
4c476991
JB		 3024 if (!rdev->ops->get_mpath)
3025 return -EOPNOTSUPP;
2ec600d6 3026
4c476991
JB		 3027 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3028 return -EOPNOTSUPP;
eec60b03 3029
79c97e97 3030 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 3031 if (err)
4c476991 3032 return err;
2ec600d6 3033
fd2120ca 3034 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 3035 if (!msg)
4c476991 3036 return -ENOMEM;
2ec600d6
LCC		 3037
3038 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 3039 dev, dst, next_hop, &pinfo) < 0) {
3040 nlmsg_free(msg);
3041 return -ENOBUFS;
3042 }
3b85875a 3043
4c476991 3044 return genlmsg_reply(msg, info);
2ec600d6
LCC		 3045}
3046
3047static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3048{
4c476991
JB		 3049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3050 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3051 u8 *dst = NULL;
3052 u8 *next_hop = NULL;
3053
3054 if (!info->attrs[NL80211_ATTR_MAC])
3055 return -EINVAL;
3056
3057 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3058 return -EINVAL;
3059
3060 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3061 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3062
4c476991
JB		 3063 if (!rdev->ops->change_mpath)
3064 return -EOPNOTSUPP;
35a8efe1 3065
4c476991
JB		 3066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3067 return -EOPNOTSUPP;
2ec600d6 3068
4c476991 3069 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3070}
4c476991 3071
2ec600d6
LCC		 3072static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3073{
4c476991
JB		 3074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3075 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3076 u8 *dst = NULL;
3077 u8 *next_hop = NULL;
3078
3079 if (!info->attrs[NL80211_ATTR_MAC])
3080 return -EINVAL;
3081
3082 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3083 return -EINVAL;
3084
3085 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3086 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3087
4c476991
JB		 3088 if (!rdev->ops->add_mpath)
3089 return -EOPNOTSUPP;
35a8efe1 3090
4c476991
JB		 3091 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3092 return -EOPNOTSUPP;
2ec600d6 3093
4c476991 3094 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3095}
3096
3097static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3098{
4c476991
JB		 3099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3100 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3101 u8 *dst = NULL;
3102
3103 if (info->attrs[NL80211_ATTR_MAC])
3104 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3105
4c476991
JB		 3106 if (!rdev->ops->del_mpath)
3107 return -EOPNOTSUPP;
3b85875a 3108
4c476991 3109 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3110}
3111
9f1ba906
JM		 3112static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3113{
4c476991
JB		 3114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3115 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3116 struct bss_parameters params;
3117
3118 memset(&params, 0, sizeof(params));
3119 /* default to not changing parameters */
3120 params.use_cts_prot = -1;
3121 params.use_short_preamble = -1;
3122 params.use_short_slot_time = -1;
fd8aaaf3 3123 params.ap_isolate = -1;
50b12f59 3124 params.ht_opmode = -1;
9f1ba906
JM		 3125
3126 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3127 params.use_cts_prot =
3128 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3129 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3130 params.use_short_preamble =
3131 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3132 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3133 params.use_short_slot_time =
3134 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3135 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3136 params.basic_rates =
3137 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3138 params.basic_rates_len =
3139 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3140 }
fd8aaaf3
FF		 3141 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3142 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3143 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3144 params.ht_opmode =
3145 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3146
4c476991
JB		 3147 if (!rdev->ops->change_bss)
3148 return -EOPNOTSUPP;
9f1ba906 3149
074ac8df 3150 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3151 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3152 return -EOPNOTSUPP;
3b85875a 3153
4c476991 3154 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3155}
3156
b54452b0 3157static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3158 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3159 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3160 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3161 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3162 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3163 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3164};
3165
3166static int parse_reg_rule(struct nlattr *tb[],
3167 struct ieee80211_reg_rule *reg_rule)
3168{
3169 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3170 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3171
3172 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3173 return -EINVAL;
3174 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3175 return -EINVAL;
3176 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3177 return -EINVAL;
3178 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3179 return -EINVAL;
3180 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3181 return -EINVAL;
3182
3183 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3184
3185 freq_range->start_freq_khz =
3186 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3187 freq_range->end_freq_khz =
3188 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3189 freq_range->max_bandwidth_khz =
3190 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3191
3192 power_rule->max_eirp =
3193 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3194
3195 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3196 power_rule->max_antenna_gain =
3197 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3198
3199 return 0;
3200}
3201
3202static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3203{
3204 int r;
3205 char *data = NULL;
3206
80778f18
LR		 3207 /*
3208 * You should only get this when cfg80211 hasn't yet initialized
3209 * completely when built-in to the kernel right between the time
3210 * window between nl80211_init() and regulatory_init(), if that is
3211 * even possible.
3212 */
3213 mutex_lock(&cfg80211_mutex);
3214 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3215 mutex_unlock(&cfg80211_mutex);
3216 return -EINPROGRESS;
80778f18 3217 }
fe33eb39 3218 mutex_unlock(&cfg80211_mutex);
80778f18 3219
fe33eb39
LR		 3220 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3221 return -EINVAL;
b2e1b302
LR		 3222
3223 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3224
fe33eb39
LR		 3225 r = regulatory_hint_user(data);
3226
b2e1b302
LR		 3227 return r;
3228}
3229
24bdd9f4 3230static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3231 struct genl_info *info)
93da9cc1 3232{
4c476991 3233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3234 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3235 struct wireless_dev *wdev = dev->ieee80211_ptr;
3236 struct mesh_config cur_params;
3237 int err = 0;
93da9cc1 3238 void *hdr;
3239 struct nlattr *pinfoattr;
3240 struct sk_buff *msg;
3241
29cbe68c
JB		 3242 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3243 return -EOPNOTSUPP;
3244
24bdd9f4 3245 if (!rdev->ops->get_mesh_config)
4c476991 3246 return -EOPNOTSUPP;
f3f92586 3247
29cbe68c
JB		 3248 wdev_lock(wdev);
3249 /* If not connected, get default parameters */
3250 if (!wdev->mesh_id_len)
3251 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3252 else
24bdd9f4 3253 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3254 &cur_params);
3255 wdev_unlock(wdev);
3256
93da9cc1 3257 if (err)
4c476991 3258 return err;
93da9cc1 3259
3260 /* Draw up a netlink message to send back */
fd2120ca 3261 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3262 if (!msg)
3263 return -ENOMEM;
93da9cc1 3264 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3265 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3266 if (!hdr)
efe1cf0c 3267 goto out;
24bdd9f4 3268 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3269 if (!pinfoattr)
3270 goto nla_put_failure;
3271 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3272 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3273 cur_params.dot11MeshRetryTimeout);
3274 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3275 cur_params.dot11MeshConfirmTimeout);
3276 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3277 cur_params.dot11MeshHoldingTimeout);
3278 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3279 cur_params.dot11MeshMaxPeerLinks);
3280 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3281 cur_params.dot11MeshMaxRetries);
3282 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3283 cur_params.dot11MeshTTL);
45904f21
JC		 3284 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3285 cur_params.element_ttl);
93da9cc1 3286 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3287 cur_params.auto_open_plinks);
3288 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3289 cur_params.dot11MeshHWMPmaxPREQretries);
3290 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3291 cur_params.path_refresh_time);
3292 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3293 cur_params.min_discovery_timeout);
3294 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3295 cur_params.dot11MeshHWMPactivePathTimeout);
3296 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3297 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3298 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3299 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3300 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3301 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3302 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3303 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3304 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3305 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3306 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3307 cur_params.dot11MeshGateAnnouncementProtocol);
94f90656
CYY		 3308 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3309 cur_params.dot11MeshForwarding);
55335137
AN		 3310 NLA_PUT_U32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3311 cur_params.rssi_threshold);
93da9cc1 3312 nla_nest_end(msg, pinfoattr);
3313 genlmsg_end(msg, hdr);
4c476991 3314 return genlmsg_reply(msg, info);
93da9cc1 3315
3b85875a 3316 nla_put_failure:
93da9cc1 3317 genlmsg_cancel(msg, hdr);
efe1cf0c 3318 out:
d080e275 3319 nlmsg_free(msg);
4c476991 3320 return -ENOBUFS;
93da9cc1 3321}
3322
b54452b0 3323static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3324 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3325 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3326 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3327 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3328 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3329 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3330 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3331 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3332
3333 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3334 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3335 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3336 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3337 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3338 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3339 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3340 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3341 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3342 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3343 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
55335137 3344 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32},
93da9cc1 3345};
3346
c80d545d
JC		 3347static const struct nla_policy
3348 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3349 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3350 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3351 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3352 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3353 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3354 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3355};
3356
24bdd9f4 3357static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3358 struct mesh_config *cfg,
3359 u32 *mask_out)
93da9cc1 3360{
93da9cc1 3361 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3362 u32 mask = 0;
93da9cc1 3363
bd90fdcc
JB		 3364#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3365do {\
3366 if (table[attr_num]) {\
3367 cfg->param = nla_fn(table[attr_num]); \
3368 mask |= (1 << (attr_num - 1)); \
3369 } \
3370} while (0);\
3371
3372
24bdd9f4 3373 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3374 return -EINVAL;
3375 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3376 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3377 nl80211_meshconf_params_policy))
93da9cc1 3378 return -EINVAL;
3379
93da9cc1 3380 /* This makes sure that there aren't more than 32 mesh config
3381 * parameters (otherwise our bitfield scheme would not work.) */
3382 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3383
3384 /* Fill in the params struct */
93da9cc1 3385 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3386 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3388 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3389 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3390 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3391 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3392 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3393 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3394 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3395 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3396 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3397 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3398 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3399 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3400 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3401 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3402 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3403 nla_get_u8);
3404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3405 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3406 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3407 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3408 nla_get_u16);
3409 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3410 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3411 nla_get_u32);
3412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3413 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3414 nla_get_u16);
dca7e943
TP		 3415 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3416 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3417 nla_get_u16);
93da9cc1 3418 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3419 dot11MeshHWMPnetDiameterTraversalTime,
3420 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3421 nla_get_u16);
63c5723b
RP		 3422 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3423 dot11MeshHWMPRootMode, mask,
3424 NL80211_MESHCONF_HWMP_ROOTMODE,
3425 nla_get_u8);
0507e159
JC		 3426 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3427 dot11MeshHWMPRannInterval, mask,
3428 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3429 nla_get_u16);
16dd7267
JC		 3430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3431 dot11MeshGateAnnouncementProtocol, mask,
3432 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3433 nla_get_u8);
94f90656
CYY		 3434 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3435 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
55335137
AN		 3436 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3437 mask, NL80211_MESHCONF_RSSI_THRESHOLD, nla_get_u32);
bd90fdcc
JB		 3438 if (mask_out)
3439 *mask_out = mask;
c80d545d 3440
bd90fdcc
JB		 3441 return 0;
3442
3443#undef FILL_IN_MESH_PARAM_IF_SET
3444}
3445
c80d545d
JC		 3446static int nl80211_parse_mesh_setup(struct genl_info *info,
3447 struct mesh_setup *setup)
3448{
3449 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3450
3451 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3452 return -EINVAL;
3453 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3454 info->attrs[NL80211_ATTR_MESH_SETUP],
3455 nl80211_mesh_setup_params_policy))
3456 return -EINVAL;
3457
3458 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3459 setup->path_sel_proto =
3460 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3461 IEEE80211_PATH_PROTOCOL_VENDOR :
3462 IEEE80211_PATH_PROTOCOL_HWMP;
3463
3464 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3465 setup->path_metric =
3466 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3467 IEEE80211_PATH_METRIC_VENDOR :
3468 IEEE80211_PATH_METRIC_AIRTIME;
3469
581a8b0f
JC		 3470
3471 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3472 struct nlattr *ieattr =
581a8b0f 3473 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3474 if (!is_valid_ie_attr(ieattr))
3475 return -EINVAL;
581a8b0f
JC		 3476 setup->ie = nla_data(ieattr);
3477 setup->ie_len = nla_len(ieattr);
c80d545d 3478 }
b130e5ce
JC		 3479 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3480 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3481
3482 return 0;
3483}
3484
24bdd9f4 3485static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3486 struct genl_info *info)
bd90fdcc
JB		 3487{
3488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3489 struct net_device *dev = info->user_ptr[1];
29cbe68c 3490 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3491 struct mesh_config cfg;
3492 u32 mask;
3493 int err;
3494
29cbe68c
JB		 3495 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3496 return -EOPNOTSUPP;
3497
24bdd9f4 3498 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3499 return -EOPNOTSUPP;
3500
24bdd9f4 3501 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3502 if (err)
3503 return err;
3504
29cbe68c
JB		 3505 wdev_lock(wdev);
3506 if (!wdev->mesh_id_len)
3507 err = -ENOLINK;
3508
3509 if (!err)
24bdd9f4 3510 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3511 mask, &cfg);
3512
3513 wdev_unlock(wdev);
3514
3515 return err;
93da9cc1 3516}
3517
f130347c
LR		 3518static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3519{
3520 struct sk_buff *msg;
3521 void *hdr = NULL;
3522 struct nlattr *nl_reg_rules;
3523 unsigned int i;
3524 int err = -EINVAL;
3525
a1794390 3526 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3527
3528 if (!cfg80211_regdomain)
3529 goto out;
3530
fd2120ca 3531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3532 if (!msg) {
3533 err = -ENOBUFS;
3534 goto out;
3535 }
3536
3537 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3538 NL80211_CMD_GET_REG);
3539 if (!hdr)
efe1cf0c 3540 goto put_failure;
f130347c
LR		 3541
3542 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3543 cfg80211_regdomain->alpha2);
8b60b078
LR		 3544 if (cfg80211_regdomain->dfs_region)
3545 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3546 cfg80211_regdomain->dfs_region);
f130347c
LR		 3547
3548 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3549 if (!nl_reg_rules)
3550 goto nla_put_failure;
3551
3552 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3553 struct nlattr *nl_reg_rule;
3554 const struct ieee80211_reg_rule *reg_rule;
3555 const struct ieee80211_freq_range *freq_range;
3556 const struct ieee80211_power_rule *power_rule;
3557
3558 reg_rule = &cfg80211_regdomain->reg_rules[i];
3559 freq_range = &reg_rule->freq_range;
3560 power_rule = &reg_rule->power_rule;
3561
3562 nl_reg_rule = nla_nest_start(msg, i);
3563 if (!nl_reg_rule)
3564 goto nla_put_failure;
3565
3566 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3567 reg_rule->flags);
3568 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3569 freq_range->start_freq_khz);
3570 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3571 freq_range->end_freq_khz);
3572 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3573 freq_range->max_bandwidth_khz);
3574 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3575 power_rule->max_antenna_gain);
3576 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3577 power_rule->max_eirp);
3578
3579 nla_nest_end(msg, nl_reg_rule);
3580 }
3581
3582 nla_nest_end(msg, nl_reg_rules);
3583
3584 genlmsg_end(msg, hdr);
134e6375 3585 err = genlmsg_reply(msg, info);
f130347c
LR		 3586 goto out;
3587
3588nla_put_failure:
3589 genlmsg_cancel(msg, hdr);
efe1cf0c 3590put_failure:
d080e275 3591 nlmsg_free(msg);
f130347c
LR		 3592 err = -EMSGSIZE;
3593out:
a1794390 3594 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3595 return err;
3596}
3597
b2e1b302
LR		 3598static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3599{
3600 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3601 struct nlattr *nl_reg_rule;
3602 char *alpha2 = NULL;
3603 int rem_reg_rules = 0, r = 0;
3604 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3605 u8 dfs_region = 0;
b2e1b302
LR		 3606 struct ieee80211_regdomain *rd = NULL;
3607
3608 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3609 return -EINVAL;
3610
3611 if (!info->attrs[NL80211_ATTR_REG_RULES])
3612 return -EINVAL;
3613
3614 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3615
8b60b078
LR		 3616 if (info->attrs[NL80211_ATTR_DFS_REGION])
3617 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3618
b2e1b302
LR		 3619 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3620 rem_reg_rules) {
3621 num_rules++;
3622 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3623 return -EINVAL;
b2e1b302
LR		 3624 }
3625
61405e97
LR		 3626 mutex_lock(&cfg80211_mutex);
3627
d0e18f83
LR		 3628 if (!reg_is_valid_request(alpha2)) {
3629 r = -EINVAL;
3630 goto bad_reg;
3631 }
b2e1b302
LR		 3632
3633 size_of_regd = sizeof(struct ieee80211_regdomain) +
3634 (num_rules * sizeof(struct ieee80211_reg_rule));
3635
3636 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3637 if (!rd) {
3638 r = -ENOMEM;
3639 goto bad_reg;
3640 }
b2e1b302
LR		 3641
3642 rd->n_reg_rules = num_rules;
3643 rd->alpha2[0] = alpha2[0];
3644 rd->alpha2[1] = alpha2[1];
3645
8b60b078
LR		 3646 /*
3647 * Disable DFS master mode if the DFS region was
3648 * not supported or known on this kernel.
3649 */
3650 if (reg_supported_dfs_region(dfs_region))
3651 rd->dfs_region = dfs_region;
3652
b2e1b302
LR		 3653 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3654 rem_reg_rules) {
3655 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3656 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3657 reg_rule_policy);
3658 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3659 if (r)
3660 goto bad_reg;
3661
3662 rule_idx++;
3663
d0e18f83
LR		 3664 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3665 r = -EINVAL;
b2e1b302 3666 goto bad_reg;
d0e18f83 3667 }
b2e1b302
LR		 3668 }
3669
3670 BUG_ON(rule_idx != num_rules);
3671
b2e1b302 3672 r = set_regdom(rd);
61405e97 3673
a1794390 3674 mutex_unlock(&cfg80211_mutex);
d0e18f83 3675
b2e1b302
LR		 3676 return r;
3677
d2372b31 3678 bad_reg:
61405e97 3679 mutex_unlock(&cfg80211_mutex);
b2e1b302 3680 kfree(rd);
d0e18f83 3681 return r;
b2e1b302
LR		 3682}
3683
83f5e2cf
JB		 3684static int validate_scan_freqs(struct nlattr *freqs)
3685{
3686 struct nlattr *attr1, *attr2;
3687 int n_channels = 0, tmp1, tmp2;
3688
3689 nla_for_each_nested(attr1, freqs, tmp1) {
3690 n_channels++;
3691 /*
3692 * Some hardware has a limited channel list for
3693 * scanning, and it is pretty much nonsensical
3694 * to scan for a channel twice, so disallow that
3695 * and don't require drivers to check that the
3696 * channel list they get isn't longer than what
3697 * they can scan, as long as they can scan all
3698 * the channels they registered at once.
3699 */
3700 nla_for_each_nested(attr2, freqs, tmp2)
3701 if (attr1 != attr2 &&
3702 nla_get_u32(attr1) == nla_get_u32(attr2))
3703 return 0;
3704 }
3705
3706 return n_channels;
3707}
3708
2a519311
JB		 3709static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3710{
4c476991
JB		 3711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3712 struct net_device *dev = info->user_ptr[1];
2a519311 3713 struct cfg80211_scan_request *request;
2a519311
JB		 3714 struct nlattr *attr;
3715 struct wiphy *wiphy;
83f5e2cf 3716 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3717 size_t ie_len;
2a519311 3718
f4a11bb0
JB		 3719 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3720 return -EINVAL;
3721
79c97e97 3722 wiphy = &rdev->wiphy;
2a519311 3723
4c476991
JB		 3724 if (!rdev->ops->scan)
3725 return -EOPNOTSUPP;
2a519311 3726
4c476991
JB		 3727 if (rdev->scan_req)
3728 return -EBUSY;
2a519311
JB		 3729
3730 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3731 n_channels = validate_scan_freqs(
3732 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3733 if (!n_channels)
3734 return -EINVAL;
2a519311 3735 } else {
34850ab2 3736 enum ieee80211_band band;
83f5e2cf
JB		 3737 n_channels = 0;
3738
2a519311
JB		 3739 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3740 if (wiphy->bands[band])
3741 n_channels += wiphy->bands[band]->n_channels;
3742 }
3743
3744 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3745 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3746 n_ssids++;
3747
4c476991
JB		 3748 if (n_ssids > wiphy->max_scan_ssids)
3749 return -EINVAL;
2a519311 3750
70692ad2
JM		 3751 if (info->attrs[NL80211_ATTR_IE])
3752 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3753 else
3754 ie_len = 0;
3755
4c476991
JB		 3756 if (ie_len > wiphy->max_scan_ie_len)
3757 return -EINVAL;
18a83659 3758
2a519311 3759 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3760 + sizeof(*request->ssids) * n_ssids
3761 + sizeof(*request->channels) * n_channels
70692ad2 3762 + ie_len, GFP_KERNEL);
4c476991
JB		 3763 if (!request)
3764 return -ENOMEM;
2a519311 3765
2a519311 3766 if (n_ssids)
5ba63533 3767 request->ssids = (void *)&request->channels[n_channels];
2a519311 3768 request->n_ssids = n_ssids;
70692ad2
JM		 3769 if (ie_len) {
3770 if (request->ssids)
3771 request->ie = (void *)(request->ssids + n_ssids);
3772 else
3773 request->ie = (void *)(request->channels + n_channels);
3774 }
2a519311 3775
584991dc 3776 i = 0;
2a519311
JB		 3777 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3778 /* user specified, bail out if channel not found */
2a519311 3779 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3780 struct ieee80211_channel *chan;
3781
3782 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3783
3784 if (!chan) {
2a519311
JB		 3785 err = -EINVAL;
3786 goto out_free;
3787 }
584991dc
JB		 3788
3789 /* ignore disabled channels */
3790 if (chan->flags & IEEE80211_CHAN_DISABLED)
3791 continue;
3792
3793 request->channels[i] = chan;
2a519311
JB		 3794 i++;
3795 }
3796 } else {
34850ab2
JB		 3797 enum ieee80211_band band;
3798
2a519311 3799 /* all channels */
2a519311
JB		 3800 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3801 int j;
3802 if (!wiphy->bands[band])
3803 continue;
3804 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3805 struct ieee80211_channel *chan;
3806
3807 chan = &wiphy->bands[band]->channels[j];
3808
3809 if (chan->flags & IEEE80211_CHAN_DISABLED)
3810 continue;
3811
3812 request->channels[i] = chan;
2a519311
JB		 3813 i++;
3814 }
3815 }
3816 }
3817
584991dc
JB		 3818 if (!i) {
3819 err = -EINVAL;
3820 goto out_free;
3821 }
3822
3823 request->n_channels = i;
3824
2a519311
JB		 3825 i = 0;
3826 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3827 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3828 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3829 err = -EINVAL;
3830 goto out_free;
3831 }
57a27e1d 3832 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3833 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3834 i++;
3835 }
3836 }
3837
70692ad2
JM		 3838 if (info->attrs[NL80211_ATTR_IE]) {
3839 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3840 memcpy((void *)request->ie,
3841 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3842 request->ie_len);
3843 }
3844
34850ab2 3845 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3846 if (wiphy->bands[i])
3847 request->rates[i] =
3848 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3849
3850 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3851 nla_for_each_nested(attr,
3852 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3853 tmp) {
3854 enum ieee80211_band band = nla_type(attr);
3855
84404623 3856 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3857 err = -EINVAL;
3858 goto out_free;
3859 }
3860 err = ieee80211_get_ratemask(wiphy->bands[band],
3861 nla_data(attr),
3862 nla_len(attr),
3863 &request->rates[band]);
3864 if (err)
3865 goto out_free;
3866 }
3867 }
3868
e9f935e3
RM		 3869 request->no_cck =
3870 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3871
463d0183 3872 request->dev = dev;
79c97e97 3873 request->wiphy = &rdev->wiphy;
2a519311 3874
79c97e97
JB		 3875 rdev->scan_req = request;
3876 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3877
463d0183 3878 if (!err) {
79c97e97 3879 nl80211_send_scan_start(rdev, dev);
463d0183 3880 dev_hold(dev);
4c476991 3881 } else {
2a519311 3882 out_free:
79c97e97 3883 rdev->scan_req = NULL;
2a519311
JB		 3884 kfree(request);
3885 }
3b85875a 3886
2a519311
JB		 3887 return err;
3888}
3889
807f8a8c
LC		 3890static int nl80211_start_sched_scan(struct sk_buff *skb,
3891 struct genl_info *info)
3892{
3893 struct cfg80211_sched_scan_request *request;
3894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3895 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3896 struct nlattr *attr;
3897 struct wiphy *wiphy;
a1f1c21c 3898 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3899 u32 interval;
807f8a8c
LC		 3900 enum ieee80211_band band;
3901 size_t ie_len;
a1f1c21c 3902 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3903
3904 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3905 !rdev->ops->sched_scan_start)
3906 return -EOPNOTSUPP;
3907
3908 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3909 return -EINVAL;
3910
bbe6ad6d
LC		 3911 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3912 return -EINVAL;
3913
3914 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3915 if (interval == 0)
3916 return -EINVAL;
3917
807f8a8c
LC		 3918 wiphy = &rdev->wiphy;
3919
3920 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3921 n_channels = validate_scan_freqs(
3922 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3923 if (!n_channels)
3924 return -EINVAL;
3925 } else {
3926 n_channels = 0;
3927
3928 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3929 if (wiphy->bands[band])
3930 n_channels += wiphy->bands[band]->n_channels;
3931 }
3932
3933 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3934 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3935 tmp)
3936 n_ssids++;
3937
93b6aa69 3938 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3939 return -EINVAL;
3940
a1f1c21c
LC		 3941 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3942 nla_for_each_nested(attr,
3943 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3944 tmp)
3945 n_match_sets++;
3946
3947 if (n_match_sets > wiphy->max_match_sets)
3948 return -EINVAL;
3949
807f8a8c
LC		 3950 if (info->attrs[NL80211_ATTR_IE])
3951 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3952 else
3953 ie_len = 0;
3954
5a865bad 3955 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3956 return -EINVAL;
3957
c10841ca
LC		 3958 mutex_lock(&rdev->sched_scan_mtx);
3959
3960 if (rdev->sched_scan_req) {
3961 err = -EINPROGRESS;
3962 goto out;
3963 }
3964
807f8a8c 3965 request = kzalloc(sizeof(*request)
a2cd43c5 3966 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3967 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3968 + sizeof(*request->channels) * n_channels
807f8a8c 3969 + ie_len, GFP_KERNEL);
c10841ca
LC		 3970 if (!request) {
3971 err = -ENOMEM;
3972 goto out;
3973 }
807f8a8c
LC		 3974
3975 if (n_ssids)
3976 request->ssids = (void *)&request->channels[n_channels];
3977 request->n_ssids = n_ssids;
3978 if (ie_len) {
3979 if (request->ssids)
3980 request->ie = (void *)(request->ssids + n_ssids);
3981 else
3982 request->ie = (void *)(request->channels + n_channels);
3983 }
3984
a1f1c21c
LC		 3985 if (n_match_sets) {
3986 if (request->ie)
3987 request->match_sets = (void *)(request->ie + ie_len);
3988 else if (request->ssids)
3989 request->match_sets =
3990 (void *)(request->ssids + n_ssids);
3991 else
3992 request->match_sets =
3993 (void *)(request->channels + n_channels);
3994 }
3995 request->n_match_sets = n_match_sets;
3996
807f8a8c
LC		 3997 i = 0;
3998 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3999 /* user specified, bail out if channel not found */
4000 nla_for_each_nested(attr,
4001 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4002 tmp) {
4003 struct ieee80211_channel *chan;
4004
4005 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4006
4007 if (!chan) {
4008 err = -EINVAL;
4009 goto out_free;
4010 }
4011
4012 /* ignore disabled channels */
4013 if (chan->flags & IEEE80211_CHAN_DISABLED)
4014 continue;
4015
4016 request->channels[i] = chan;
4017 i++;
4018 }
4019 } else {
4020 /* all channels */
4021 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4022 int j;
4023 if (!wiphy->bands[band])
4024 continue;
4025 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4026 struct ieee80211_channel *chan;
4027
4028 chan = &wiphy->bands[band]->channels[j];
4029
4030 if (chan->flags & IEEE80211_CHAN_DISABLED)
4031 continue;
4032
4033 request->channels[i] = chan;
4034 i++;
4035 }
4036 }
4037 }
4038
4039 if (!i) {
4040 err = -EINVAL;
4041 goto out_free;
4042 }
4043
4044 request->n_channels = i;
4045
4046 i = 0;
4047 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4048 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4049 tmp) {
57a27e1d 4050 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4051 err = -EINVAL;
4052 goto out_free;
4053 }
57a27e1d 4054 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4055 memcpy(request->ssids[i].ssid, nla_data(attr),
4056 nla_len(attr));
807f8a8c
LC		 4057 i++;
4058 }
4059 }
4060
a1f1c21c
LC		 4061 i = 0;
4062 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4063 nla_for_each_nested(attr,
4064 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4065 tmp) {
4066 struct nlattr *ssid;
4067
4068 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4069 nla_data(attr), nla_len(attr),
4070 nl80211_match_policy);
4071 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4072 if (ssid) {
4073 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4074 err = -EINVAL;
4075 goto out_free;
4076 }
4077 memcpy(request->match_sets[i].ssid.ssid,
4078 nla_data(ssid), nla_len(ssid));
4079 request->match_sets[i].ssid.ssid_len =
4080 nla_len(ssid);
4081 }
4082 i++;
4083 }
4084 }
4085
807f8a8c
LC		 4086 if (info->attrs[NL80211_ATTR_IE]) {
4087 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4088 memcpy((void *)request->ie,
4089 nla_data(info->attrs[NL80211_ATTR_IE]),
4090 request->ie_len);
4091 }
4092
4093 request->dev = dev;
4094 request->wiphy = &rdev->wiphy;
bbe6ad6d 4095 request->interval = interval;
807f8a8c
LC		 4096
4097 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4098 if (!err) {
4099 rdev->sched_scan_req = request;
4100 nl80211_send_sched_scan(rdev, dev,
4101 NL80211_CMD_START_SCHED_SCAN);
4102 goto out;
4103 }
4104
4105out_free:
4106 kfree(request);
4107out:
c10841ca 4108 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4109 return err;
4110}
4111
4112static int nl80211_stop_sched_scan(struct sk_buff *skb,
4113 struct genl_info *info)
4114{
4115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4116 int err;
807f8a8c
LC		 4117
4118 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4119 !rdev->ops->sched_scan_stop)
4120 return -EOPNOTSUPP;
4121
c10841ca
LC		 4122 mutex_lock(&rdev->sched_scan_mtx);
4123 err = __cfg80211_stop_sched_scan(rdev, false);
4124 mutex_unlock(&rdev->sched_scan_mtx);
4125
4126 return err;
807f8a8c
LC		 4127}
4128
9720bb3a
JB		 4129static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4130 u32 seq, int flags,
2a519311 4131 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4132 struct wireless_dev *wdev,
4133 struct cfg80211_internal_bss *intbss)
2a519311 4134{
48ab905d 4135 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4136 void *hdr;
4137 struct nlattr *bss;
48ab905d
JB		 4138
4139 ASSERT_WDEV_LOCK(wdev);
2a519311 4140
9720bb3a 4141 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4142 NL80211_CMD_NEW_SCAN_RESULTS);
4143 if (!hdr)
4144 return -1;
4145
9720bb3a
JB		 4146 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4147
f5ea9120 4148 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4149 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4150
4151 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4152 if (!bss)
4153 goto nla_put_failure;
4154 if (!is_zero_ether_addr(res->bssid))
4155 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4156 if (res->information_elements && res->len_information_elements)
4157 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4158 res->len_information_elements,
4159 res->information_elements);
34a6eddb
JM		 4160 if (res->beacon_ies && res->len_beacon_ies &&
4161 res->beacon_ies != res->information_elements)
4162 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4163 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4164 if (res->tsf)
4165 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4166 if (res->beacon_interval)
4167 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4168 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4169 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4170 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4171 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4172
77965c97 4173 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4174 case CFG80211_SIGNAL_TYPE_MBM:
4175 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4176 break;
4177 case CFG80211_SIGNAL_TYPE_UNSPEC:
4178 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4179 break;
4180 default:
4181 break;
4182 }
4183
48ab905d 4184 switch (wdev->iftype) {
074ac8df 4185 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4186 case NL80211_IFTYPE_STATION:
4187 if (intbss == wdev->current_bss)
4188 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4189 NL80211_BSS_STATUS_ASSOCIATED);
48ab905d
JB		 4190 break;
4191 case NL80211_IFTYPE_ADHOC:
4192 if (intbss == wdev->current_bss)
4193 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4194 NL80211_BSS_STATUS_IBSS_JOINED);
4195 break;
4196 default:
4197 break;
4198 }
4199
2a519311
JB		 4200 nla_nest_end(msg, bss);
4201
4202 return genlmsg_end(msg, hdr);
4203
4204 nla_put_failure:
4205 genlmsg_cancel(msg, hdr);
4206 return -EMSGSIZE;
4207}
4208
4209static int nl80211_dump_scan(struct sk_buff *skb,
4210 struct netlink_callback *cb)
4211{
48ab905d
JB		 4212 struct cfg80211_registered_device *rdev;
4213 struct net_device *dev;
2a519311 4214 struct cfg80211_internal_bss *scan;
48ab905d 4215 struct wireless_dev *wdev;
2a519311
JB		 4216 int start = cb->args[1], idx = 0;
4217 int err;
4218
67748893
JB		 4219 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4220 if (err)
4221 return err;
2a519311 4222
48ab905d 4223 wdev = dev->ieee80211_ptr;
2a519311 4224
48ab905d
JB		 4225 wdev_lock(wdev);
4226 spin_lock_bh(&rdev->bss_lock);
4227 cfg80211_bss_expire(rdev);
4228
9720bb3a
JB		 4229 cb->seq = rdev->bss_generation;
4230
48ab905d 4231 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4232 if (++idx <= start)
4233 continue;
9720bb3a 4234 if (nl80211_send_bss(skb, cb,
2a519311 4235 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4236 rdev, wdev, scan) < 0) {
2a519311 4237 idx--;
67748893 4238 break;
2a519311
JB		 4239 }
4240 }
4241
48ab905d
JB		 4242 spin_unlock_bh(&rdev->bss_lock);
4243 wdev_unlock(wdev);
2a519311
JB		 4244
4245 cb->args[1] = idx;
67748893 4246 nl80211_finish_netdev_dump(rdev);
2a519311 4247
67748893 4248 return skb->len;
2a519311
JB		 4249}
4250
61fa713c
HS		 4251static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4252 int flags, struct net_device *dev,
4253 struct survey_info *survey)
4254{
4255 void *hdr;
4256 struct nlattr *infoattr;
4257
61fa713c
HS		 4258 hdr = nl80211hdr_put(msg, pid, seq, flags,
4259 NL80211_CMD_NEW_SURVEY_RESULTS);
4260 if (!hdr)
4261 return -ENOMEM;
4262
4263 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4264
4265 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4266 if (!infoattr)
4267 goto nla_put_failure;
4268
4269 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4270 survey->channel->center_freq);
4271 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4272 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4273 survey->noise);
17e5a808
FF		 4274 if (survey->filled & SURVEY_INFO_IN_USE)
4275 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4276 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4277 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4278 survey->channel_time);
4279 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4280 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4281 survey->channel_time_busy);
4282 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4283 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4284 survey->channel_time_ext_busy);
4285 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4286 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4287 survey->channel_time_rx);
4288 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4289 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4290 survey->channel_time_tx);
61fa713c
HS		 4291
4292 nla_nest_end(msg, infoattr);
4293
4294 return genlmsg_end(msg, hdr);
4295
4296 nla_put_failure:
4297 genlmsg_cancel(msg, hdr);
4298 return -EMSGSIZE;
4299}
4300
4301static int nl80211_dump_survey(struct sk_buff *skb,
4302 struct netlink_callback *cb)
4303{
4304 struct survey_info survey;
4305 struct cfg80211_registered_device *dev;
4306 struct net_device *netdev;
61fa713c
HS		 4307 int survey_idx = cb->args[1];
4308 int res;
4309
67748893
JB		 4310 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4311 if (res)
4312 return res;
61fa713c
HS		 4313
4314 if (!dev->ops->dump_survey) {
4315 res = -EOPNOTSUPP;
4316 goto out_err;
4317 }
4318
4319 while (1) {
180cdc79
LR		 4320 struct ieee80211_channel *chan;
4321
61fa713c
HS		 4322 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4323 &survey);
4324 if (res == -ENOENT)
4325 break;
4326 if (res)
4327 goto out_err;
4328
180cdc79
LR		 4329 /* Survey without a channel doesn't make sense */
4330 if (!survey.channel) {
4331 res = -EINVAL;
4332 goto out;
4333 }
4334
4335 chan = ieee80211_get_channel(&dev->wiphy,
4336 survey.channel->center_freq);
4337 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4338 survey_idx++;
4339 continue;
4340 }
4341
61fa713c
HS		 4342 if (nl80211_send_survey(skb,
4343 NETLINK_CB(cb->skb).pid,
4344 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4345 netdev,
4346 &survey) < 0)
4347 goto out;
4348 survey_idx++;
4349 }
4350
4351 out:
4352 cb->args[1] = survey_idx;
4353 res = skb->len;
4354 out_err:
67748893 4355 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4356 return res;
4357}
4358
255e737e
JM		 4359static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4360{
b23aa676
SO		 4361 return auth_type <= NL80211_AUTHTYPE_MAX;
4362}
4363
4364static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4365{
4366 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4367 NL80211_WPA_VERSION_2));
4368}
4369
636a5d36
JM		 4370static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4371{
4c476991
JB		 4372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4373 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4374 struct ieee80211_channel *chan;
4375 const u8 *bssid, *ssid, *ie = NULL;
4376 int err, ssid_len, ie_len = 0;
4377 enum nl80211_auth_type auth_type;
fffd0934 4378 struct key_parse key;
d5cdfacb 4379 bool local_state_change;
636a5d36 4380
f4a11bb0
JB		 4381 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4382 return -EINVAL;
4383
4384 if (!info->attrs[NL80211_ATTR_MAC])
4385 return -EINVAL;
4386
1778092e
JM		 4387 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4388 return -EINVAL;
4389
19957bb3
JB		 4390 if (!info->attrs[NL80211_ATTR_SSID])
4391 return -EINVAL;
4392
4393 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4394 return -EINVAL;
4395
fffd0934
JB		 4396 err = nl80211_parse_key(info, &key);
4397 if (err)
4398 return err;
4399
4400 if (key.idx >= 0) {
e31b8213
JB		 4401 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4402 return -EINVAL;
fffd0934
JB		 4403 if (!key.p.key || !key.p.key_len)
4404 return -EINVAL;
4405 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4406 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4407 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4408 key.p.key_len != WLAN_KEY_LEN_WEP104))
4409 return -EINVAL;
4410 if (key.idx > 4)
4411 return -EINVAL;
4412 } else {
4413 key.p.key_len = 0;
4414 key.p.key = NULL;
4415 }
4416
afea0b7a
JB		 4417 if (key.idx >= 0) {
4418 int i;
4419 bool ok = false;
4420 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4421 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4422 ok = true;
4423 break;
4424 }
4425 }
4c476991
JB		 4426 if (!ok)
4427 return -EINVAL;
afea0b7a
JB		 4428 }
4429
4c476991
JB		 4430 if (!rdev->ops->auth)
4431 return -EOPNOTSUPP;
636a5d36 4432
074ac8df 4433 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4434 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4435 return -EOPNOTSUPP;
eec60b03 4436
19957bb3 4437 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4438 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4439 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4440 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4441 return -EINVAL;
636a5d36 4442
19957bb3
JB		 4443 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4444 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4445
4446 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4447 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4448 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4449 }
4450
19957bb3 4451 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4452 if (!nl80211_valid_auth_type(auth_type))
4453 return -EINVAL;
636a5d36 4454
d5cdfacb
JM		 4455 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4456
95de817b
JB		 4457 /*
4458 * Since we no longer track auth state, ignore
4459 * requests to only change local state.
4460 */
4461 if (local_state_change)
4462 return 0;
4463
4c476991
JB		 4464 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4465 ssid, ssid_len, ie, ie_len,
95de817b 4466 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4467}
4468
c0692b8f
JB		 4469static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4470 struct genl_info *info,
3dc27d25
JB		 4471 struct cfg80211_crypto_settings *settings,
4472 int cipher_limit)
b23aa676 4473{
c0b2bbd8
JB		 4474 memset(settings, 0, sizeof(*settings));
4475
b23aa676
SO		 4476 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4477
c0692b8f
JB		 4478 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4479 u16 proto;
4480 proto = nla_get_u16(
4481 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4482 settings->control_port_ethertype = cpu_to_be16(proto);
4483 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4484 proto != ETH_P_PAE)
4485 return -EINVAL;
4486 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4487 settings->control_port_no_encrypt = true;
4488 } else
4489 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4490
b23aa676
SO		 4491 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4492 void *data;
4493 int len, i;
4494
4495 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4496 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4497 settings->n_ciphers_pairwise = len / sizeof(u32);
4498
4499 if (len % sizeof(u32))
4500 return -EINVAL;
4501
3dc27d25 4502 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4503 return -EINVAL;
4504
4505 memcpy(settings->ciphers_pairwise, data, len);
4506
4507 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4508 if (!cfg80211_supported_cipher_suite(
4509 &rdev->wiphy,
b23aa676
SO		 4510 settings->ciphers_pairwise[i]))
4511 return -EINVAL;
4512 }
4513
4514 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4515 settings->cipher_group =
4516 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4517 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4518 settings->cipher_group))
b23aa676
SO		 4519 return -EINVAL;
4520 }
4521
4522 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4523 settings->wpa_versions =
4524 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4525 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4526 return -EINVAL;
4527 }
4528
4529 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4530 void *data;
6d30240e 4531 int len;
b23aa676
SO		 4532
4533 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4534 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4535 settings->n_akm_suites = len / sizeof(u32);
4536
4537 if (len % sizeof(u32))
4538 return -EINVAL;
4539
1b9ca027
JM		 4540 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4541 return -EINVAL;
4542
b23aa676 4543 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4544 }
4545
4546 return 0;
4547}
4548
636a5d36
JM		 4549static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4550{
4c476991
JB		 4551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4552 struct net_device *dev = info->user_ptr[1];
19957bb3 4553 struct cfg80211_crypto_settings crypto;
f444de05 4554 struct ieee80211_channel *chan;
3e5d7649 4555 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4556 int err, ssid_len, ie_len = 0;
4557 bool use_mfp = false;
7e7c8926
BG		 4558 u32 flags = 0;
4559 struct ieee80211_ht_cap *ht_capa = NULL;
4560 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4561
f4a11bb0
JB		 4562 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4563 return -EINVAL;
4564
4565 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4566 !info->attrs[NL80211_ATTR_SSID] ||
4567 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4568 return -EINVAL;
4569
4c476991
JB		 4570 if (!rdev->ops->assoc)
4571 return -EOPNOTSUPP;
636a5d36 4572
074ac8df 4573 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4574 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4575 return -EOPNOTSUPP;
eec60b03 4576
19957bb3 4577 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4578
19957bb3
JB		 4579 chan = ieee80211_get_channel(&rdev->wiphy,
4580 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4581 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4582 return -EINVAL;
636a5d36 4583
19957bb3
JB		 4584 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4585 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4586
4587 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4588 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4589 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4590 }
4591
dc6382ce 4592 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4593 enum nl80211_mfp mfp =
dc6382ce 4594 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4595 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4596 use_mfp = true;
4c476991
JB		 4597 else if (mfp != NL80211_MFP_NO)
4598 return -EINVAL;
dc6382ce
JM		 4599 }
4600
3e5d7649
JB		 4601 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4602 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4603
7e7c8926
BG		 4604 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4605 flags |= ASSOC_REQ_DISABLE_HT;
4606
4607 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4608 ht_capa_mask =
4609 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4610
4611 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4612 if (!ht_capa_mask)
4613 return -EINVAL;
4614 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4615 }
4616
c0692b8f 4617 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4618 if (!err)
3e5d7649
JB		 4619 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4620 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4621 &crypto, flags, ht_capa,
4622 ht_capa_mask);
636a5d36 4623
636a5d36
JM		 4624 return err;
4625}
4626
4627static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4628{
4c476991
JB		 4629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4630 struct net_device *dev = info->user_ptr[1];
19957bb3 4631 const u8 *ie = NULL, *bssid;
4c476991 4632 int ie_len = 0;
19957bb3 4633 u16 reason_code;
d5cdfacb 4634 bool local_state_change;
636a5d36 4635
f4a11bb0
JB		 4636 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4637 return -EINVAL;
4638
4639 if (!info->attrs[NL80211_ATTR_MAC])
4640 return -EINVAL;
4641
4642 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4643 return -EINVAL;
4644
4c476991
JB		 4645 if (!rdev->ops->deauth)
4646 return -EOPNOTSUPP;
636a5d36 4647
074ac8df 4648 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4649 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4650 return -EOPNOTSUPP;
eec60b03 4651
19957bb3 4652 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4653
19957bb3
JB		 4654 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4655 if (reason_code == 0) {
f4a11bb0 4656 /* Reason Code 0 is reserved */
4c476991 4657 return -EINVAL;
255e737e 4658 }
636a5d36
JM		 4659
4660 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4661 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4662 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4663 }
4664
d5cdfacb
JM		 4665 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4666
4c476991
JB		 4667 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4668 local_state_change);
636a5d36
JM		 4669}
4670
4671static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4672{
4c476991
JB		 4673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4674 struct net_device *dev = info->user_ptr[1];
19957bb3 4675 const u8 *ie = NULL, *bssid;
4c476991 4676 int ie_len = 0;
19957bb3 4677 u16 reason_code;
d5cdfacb 4678 bool local_state_change;
636a5d36 4679
f4a11bb0
JB		 4680 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4681 return -EINVAL;
4682
4683 if (!info->attrs[NL80211_ATTR_MAC])
4684 return -EINVAL;
4685
4686 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4687 return -EINVAL;
4688
4c476991
JB		 4689 if (!rdev->ops->disassoc)
4690 return -EOPNOTSUPP;
636a5d36 4691
074ac8df 4692 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4693 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4694 return -EOPNOTSUPP;
eec60b03 4695
19957bb3 4696 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4697
19957bb3
JB		 4698 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4699 if (reason_code == 0) {
f4a11bb0 4700 /* Reason Code 0 is reserved */
4c476991 4701 return -EINVAL;
255e737e 4702 }
636a5d36
JM		 4703
4704 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4705 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4706 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4707 }
4708
d5cdfacb
JM		 4709 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4710
4c476991
JB		 4711 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4712 local_state_change);
636a5d36
JM		 4713}
4714
dd5b4cc7
FF		 4715static bool
4716nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4717 int mcast_rate[IEEE80211_NUM_BANDS],
4718 int rateval)
4719{
4720 struct wiphy *wiphy = &rdev->wiphy;
4721 bool found = false;
4722 int band, i;
4723
4724 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4725 struct ieee80211_supported_band *sband;
4726
4727 sband = wiphy->bands[band];
4728 if (!sband)
4729 continue;
4730
4731 for (i = 0; i < sband->n_bitrates; i++) {
4732 if (sband->bitrates[i].bitrate == rateval) {
4733 mcast_rate[band] = i + 1;
4734 found = true;
4735 break;
4736 }
4737 }
4738 }
4739
4740 return found;
4741}
4742
04a773ad
JB		 4743static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4744{
4c476991
JB		 4745 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4746 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4747 struct cfg80211_ibss_params ibss;
4748 struct wiphy *wiphy;
fffd0934 4749 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4750 int err;
4751
8e30bc55
JB		 4752 memset(&ibss, 0, sizeof(ibss));
4753
04a773ad
JB		 4754 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4755 return -EINVAL;
4756
4757 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4758 !info->attrs[NL80211_ATTR_SSID] ||
4759 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4760 return -EINVAL;
4761
8e30bc55
JB		 4762 ibss.beacon_interval = 100;
4763
4764 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4765 ibss.beacon_interval =
4766 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4767 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4768 return -EINVAL;
4769 }
4770
4c476991
JB		 4771 if (!rdev->ops->join_ibss)
4772 return -EOPNOTSUPP;
04a773ad 4773
4c476991
JB		 4774 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4775 return -EOPNOTSUPP;
04a773ad 4776
79c97e97 4777 wiphy = &rdev->wiphy;
04a773ad 4778
39193498 4779 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4780 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4781
4782 if (!is_valid_ether_addr(ibss.bssid))
4783 return -EINVAL;
4784 }
04a773ad
JB		 4785 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4786 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4787
4788 if (info->attrs[NL80211_ATTR_IE]) {
4789 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4790 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4791 }
4792
54858ee5
AS		 4793 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4794 enum nl80211_channel_type channel_type;
4795
4796 channel_type = nla_get_u32(
4797 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4798 if (channel_type != NL80211_CHAN_NO_HT &&
4799 channel_type != NL80211_CHAN_HT20 &&
4800 channel_type != NL80211_CHAN_HT40MINUS &&
4801 channel_type != NL80211_CHAN_HT40PLUS)
4802 return -EINVAL;
4803
4804 if (channel_type != NL80211_CHAN_NO_HT &&
4805 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4806 return -EINVAL;
4807
4808 ibss.channel_type = channel_type;
4809 } else {
4810 ibss.channel_type = NL80211_CHAN_NO_HT;
4811 }
4812
4813 ibss.channel = rdev_freq_to_chan(rdev,
4814 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4815 ibss.channel_type);
04a773ad
JB		 4816 if (!ibss.channel ||
4817 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4818 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4819 return -EINVAL;
04a773ad 4820
54858ee5
AS		 4821 /* Both channels should be able to initiate communication */
4822 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4823 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4824 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4825 ibss.channel_type))
4826 return -EINVAL;
4827
04a773ad 4828 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4829 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4830
fbd2c8dc
TP		 4831 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4832 u8 *rates =
4833 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4834 int n_rates =
4835 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4836 struct ieee80211_supported_band *sband =
4837 wiphy->bands[ibss.channel->band];
fbd2c8dc 4838
34850ab2
JB		 4839 err = ieee80211_get_ratemask(sband, rates, n_rates,
4840 &ibss.basic_rates);
4841 if (err)
4842 return err;
fbd2c8dc 4843 }
dd5b4cc7
FF		 4844
4845 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4846 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4847 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4848 return -EINVAL;
fbd2c8dc 4849
4c476991
JB		 4850 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4851 connkeys = nl80211_parse_connkeys(rdev,
4852 info->attrs[NL80211_ATTR_KEYS]);
4853 if (IS_ERR(connkeys))
4854 return PTR_ERR(connkeys);
4855 }
04a773ad 4856
267335d6
AQ		 4857 ibss.control_port =
4858 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4859
4c476991 4860 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4861 if (err)
4862 kfree(connkeys);
04a773ad
JB		 4863 return err;
4864}
4865
4866static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4867{
4c476991
JB		 4868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4869 struct net_device *dev = info->user_ptr[1];
04a773ad 4870
4c476991
JB		 4871 if (!rdev->ops->leave_ibss)
4872 return -EOPNOTSUPP;
04a773ad 4873
4c476991
JB		 4874 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4875 return -EOPNOTSUPP;
04a773ad 4876
4c476991 4877 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4878}
4879
aff89a9b
JB		 4880#ifdef CONFIG_NL80211_TESTMODE
4881static struct genl_multicast_group nl80211_testmode_mcgrp = {
4882 .name = "testmode",
4883};
4884
4885static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4886{
4c476991 4887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4888 int err;
4889
4890 if (!info->attrs[NL80211_ATTR_TESTDATA])
4891 return -EINVAL;
4892
aff89a9b
JB		 4893 err = -EOPNOTSUPP;
4894 if (rdev->ops->testmode_cmd) {
4895 rdev->testmode_info = info;
4896 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4897 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4898 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4899 rdev->testmode_info = NULL;
4900 }
4901
aff89a9b
JB		 4902 return err;
4903}
4904
71063f0e
WYG		 4905static int nl80211_testmode_dump(struct sk_buff *skb,
4906 struct netlink_callback *cb)
4907{
00918d33 4908 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4909 int err;
4910 long phy_idx;
4911 void *data = NULL;
4912 int data_len = 0;
4913
4914 if (cb->args[0]) {
4915 /*
4916 * 0 is a valid index, but not valid for args[0],
4917 * so we need to offset by 1.
4918 */
4919 phy_idx = cb->args[0] - 1;
4920 } else {
4921 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4922 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4923 nl80211_policy);
4924 if (err)
4925 return err;
00918d33
JB		 4926 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4927 phy_idx = nla_get_u32(
4928 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4929 } else {
4930 struct net_device *netdev;
4931
4932 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4933 nl80211_fam.attrbuf,
4934 &rdev, &netdev);
4935 if (err)
4936 return err;
4937 dev_put(netdev);
4938 phy_idx = rdev->wiphy_idx;
4939 cfg80211_unlock_rdev(rdev);
4940 }
71063f0e
WYG		 4941 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4942 cb->args[1] =
4943 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4944 }
4945
4946 if (cb->args[1]) {
4947 data = nla_data((void *)cb->args[1]);
4948 data_len = nla_len((void *)cb->args[1]);
4949 }
4950
4951 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4952 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4953 if (!rdev) {
71063f0e
WYG		 4954 mutex_unlock(&cfg80211_mutex);
4955 return -ENOENT;
4956 }
00918d33 4957 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4958 mutex_unlock(&cfg80211_mutex);
4959
00918d33 4960 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4961 err = -EOPNOTSUPP;
4962 goto out_err;
4963 }
4964
4965 while (1) {
4966 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4967 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4968 NL80211_CMD_TESTMODE);
4969 struct nlattr *tmdata;
4970
00918d33 4971 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4972 genlmsg_cancel(skb, hdr);
4973 break;
4974 }
4975
4976 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4977 if (!tmdata) {
4978 genlmsg_cancel(skb, hdr);
4979 break;
4980 }
00918d33
JB		 4981 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4982 data, data_len);
71063f0e
WYG		 4983 nla_nest_end(skb, tmdata);
4984
4985 if (err == -ENOBUFS || err == -ENOENT) {
4986 genlmsg_cancel(skb, hdr);
4987 break;
4988 } else if (err) {
4989 genlmsg_cancel(skb, hdr);
4990 goto out_err;
4991 }
4992
4993 genlmsg_end(skb, hdr);
4994 }
4995
4996 err = skb->len;
4997 /* see above */
4998 cb->args[0] = phy_idx + 1;
4999 out_err:
00918d33 5000 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 5001 return err;
5002}
5003
aff89a9b
JB		 5004static struct sk_buff *
5005__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5006 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5007{
5008 struct sk_buff *skb;
5009 void *hdr;
5010 struct nlattr *data;
5011
5012 skb = nlmsg_new(approxlen + 100, gfp);
5013 if (!skb)
5014 return NULL;
5015
5016 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5017 if (!hdr) {
5018 kfree_skb(skb);
5019 return NULL;
5020 }
5021
5022 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5023 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5024
5025 ((void **)skb->cb)[0] = rdev;
5026 ((void **)skb->cb)[1] = hdr;
5027 ((void **)skb->cb)[2] = data;
5028
5029 return skb;
5030
5031 nla_put_failure:
5032 kfree_skb(skb);
5033 return NULL;
5034}
5035
5036struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5037 int approxlen)
5038{
5039 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5040
5041 if (WARN_ON(!rdev->testmode_info))
5042 return NULL;
5043
5044 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5045 rdev->testmode_info->snd_pid,
5046 rdev->testmode_info->snd_seq,
5047 GFP_KERNEL);
5048}
5049EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5050
5051int cfg80211_testmode_reply(struct sk_buff *skb)
5052{
5053 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5054 void *hdr = ((void **)skb->cb)[1];
5055 struct nlattr *data = ((void **)skb->cb)[2];
5056
5057 if (WARN_ON(!rdev->testmode_info)) {
5058 kfree_skb(skb);
5059 return -EINVAL;
5060 }
5061
5062 nla_nest_end(skb, data);
5063 genlmsg_end(skb, hdr);
5064 return genlmsg_reply(skb, rdev->testmode_info);
5065}
5066EXPORT_SYMBOL(cfg80211_testmode_reply);
5067
5068struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5069 int approxlen, gfp_t gfp)
5070{
5071 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5072
5073 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5074}
5075EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5076
5077void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5078{
5079 void *hdr = ((void **)skb->cb)[1];
5080 struct nlattr *data = ((void **)skb->cb)[2];
5081
5082 nla_nest_end(skb, data);
5083 genlmsg_end(skb, hdr);
5084 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5085}
5086EXPORT_SYMBOL(cfg80211_testmode_event);
5087#endif
5088
b23aa676
SO		 5089static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5090{
4c476991
JB		 5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5093 struct cfg80211_connect_params connect;
5094 struct wiphy *wiphy;
fffd0934 5095 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5096 int err;
5097
5098 memset(&connect, 0, sizeof(connect));
5099
5100 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5101 return -EINVAL;
5102
5103 if (!info->attrs[NL80211_ATTR_SSID] ||
5104 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5105 return -EINVAL;
5106
5107 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5108 connect.auth_type =
5109 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5110 if (!nl80211_valid_auth_type(connect.auth_type))
5111 return -EINVAL;
5112 } else
5113 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5114
5115 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5116
c0692b8f 5117 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5118 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5119 if (err)
5120 return err;
b23aa676 5121
074ac8df 5122 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5123 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5124 return -EOPNOTSUPP;
b23aa676 5125
79c97e97 5126 wiphy = &rdev->wiphy;
b23aa676 5127
4486ea98
BS		 5128 connect.bg_scan_period = -1;
5129 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5130 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5131 connect.bg_scan_period =
5132 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5133 }
5134
b23aa676
SO		 5135 if (info->attrs[NL80211_ATTR_MAC])
5136 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5137 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5138 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5139
5140 if (info->attrs[NL80211_ATTR_IE]) {
5141 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5142 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5143 }
5144
5145 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5146 connect.channel =
5147 ieee80211_get_channel(wiphy,
5148 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5149 if (!connect.channel ||
4c476991
JB		 5150 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5151 return -EINVAL;
b23aa676
SO		 5152 }
5153
fffd0934
JB		 5154 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5155 connkeys = nl80211_parse_connkeys(rdev,
5156 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5157 if (IS_ERR(connkeys))
5158 return PTR_ERR(connkeys);
fffd0934
JB		 5159 }
5160
7e7c8926
BG		 5161 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5162 connect.flags |= ASSOC_REQ_DISABLE_HT;
5163
5164 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5165 memcpy(&connect.ht_capa_mask,
5166 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5167 sizeof(connect.ht_capa_mask));
5168
5169 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5170 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5171 return -EINVAL;
5172 memcpy(&connect.ht_capa,
5173 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5174 sizeof(connect.ht_capa));
5175 }
5176
fffd0934 5177 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5178 if (err)
5179 kfree(connkeys);
b23aa676
SO		 5180 return err;
5181}
5182
5183static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5184{
4c476991
JB		 5185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5186 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5187 u16 reason;
5188
5189 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5190 reason = WLAN_REASON_DEAUTH_LEAVING;
5191 else
5192 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5193
5194 if (reason == 0)
5195 return -EINVAL;
5196
074ac8df 5197 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5198 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5199 return -EOPNOTSUPP;
b23aa676 5200
4c476991 5201 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5202}
5203
463d0183
JB		 5204static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5205{
4c476991 5206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5207 struct net *net;
5208 int err;
5209 u32 pid;
5210
5211 if (!info->attrs[NL80211_ATTR_PID])
5212 return -EINVAL;
5213
5214 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5215
463d0183 5216 net = get_net_ns_by_pid(pid);
4c476991
JB		 5217 if (IS_ERR(net))
5218 return PTR_ERR(net);
463d0183
JB		 5219
5220 err = 0;
5221
5222 /* check if anything to do */
4c476991
JB		 5223 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5224 err = cfg80211_switch_netns(rdev, net);
463d0183 5225
463d0183 5226 put_net(net);
463d0183
JB		 5227 return err;
5228}
5229
67fbb16b
SO		 5230static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5231{
4c476991 5232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5233 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5234 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5235 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5236 struct cfg80211_pmksa pmksa;
5237
5238 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5239
5240 if (!info->attrs[NL80211_ATTR_MAC])
5241 return -EINVAL;
5242
5243 if (!info->attrs[NL80211_ATTR_PMKID])
5244 return -EINVAL;
5245
67fbb16b
SO		 5246 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5247 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5248
074ac8df 5249 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5250 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5251 return -EOPNOTSUPP;
67fbb16b
SO		 5252
5253 switch (info->genlhdr->cmd) {
5254 case NL80211_CMD_SET_PMKSA:
5255 rdev_ops = rdev->ops->set_pmksa;
5256 break;
5257 case NL80211_CMD_DEL_PMKSA:
5258 rdev_ops = rdev->ops->del_pmksa;
5259 break;
5260 default:
5261 WARN_ON(1);
5262 break;
5263 }
5264
4c476991
JB		 5265 if (!rdev_ops)
5266 return -EOPNOTSUPP;
67fbb16b 5267
4c476991 5268 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5269}
5270
5271static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5272{
4c476991
JB		 5273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5274 struct net_device *dev = info->user_ptr[1];
67fbb16b 5275
074ac8df 5276 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5277 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5278 return -EOPNOTSUPP;
67fbb16b 5279
4c476991
JB		 5280 if (!rdev->ops->flush_pmksa)
5281 return -EOPNOTSUPP;
67fbb16b 5282
4c476991 5283 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5284}
5285
109086ce
AN		 5286static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5287{
5288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5289 struct net_device *dev = info->user_ptr[1];
5290 u8 action_code, dialog_token;
5291 u16 status_code;
5292 u8 *peer;
5293
5294 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5295 !rdev->ops->tdls_mgmt)
5296 return -EOPNOTSUPP;
5297
5298 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5299 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5300 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5301 !info->attrs[NL80211_ATTR_IE] ||
5302 !info->attrs[NL80211_ATTR_MAC])
5303 return -EINVAL;
5304
5305 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5306 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5307 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5308 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5309
5310 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5311 dialog_token, status_code,
5312 nla_data(info->attrs[NL80211_ATTR_IE]),
5313 nla_len(info->attrs[NL80211_ATTR_IE]));
5314}
5315
5316static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5317{
5318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5319 struct net_device *dev = info->user_ptr[1];
5320 enum nl80211_tdls_operation operation;
5321 u8 *peer;
5322
5323 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5324 !rdev->ops->tdls_oper)
5325 return -EOPNOTSUPP;
5326
5327 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5328 !info->attrs[NL80211_ATTR_MAC])
5329 return -EINVAL;
5330
5331 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5332 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5333
5334 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5335}
5336
9588bbd5
JM		 5337static int nl80211_remain_on_channel(struct sk_buff *skb,
5338 struct genl_info *info)
5339{
4c476991
JB		 5340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5341 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5342 struct ieee80211_channel *chan;
5343 struct sk_buff *msg;
5344 void *hdr;
5345 u64 cookie;
5346 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5347 u32 freq, duration;
5348 int err;
5349
5350 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5351 !info->attrs[NL80211_ATTR_DURATION])
5352 return -EINVAL;
5353
5354 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5355
5356 /*
5357 * We should be on that channel for at least one jiffie,
5358 * and more than 5 seconds seems excessive.
5359 */
a293911d
JB		 5360 if (!duration || !msecs_to_jiffies(duration) ||
5361 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5362 return -EINVAL;
5363
7c4ef712
JB		 5364 if (!rdev->ops->remain_on_channel ||
5365 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5366 return -EOPNOTSUPP;
9588bbd5 5367
9588bbd5
JM		 5368 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5369 channel_type = nla_get_u32(
5370 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5371 if (channel_type != NL80211_CHAN_NO_HT &&
5372 channel_type != NL80211_CHAN_HT20 &&
5373 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5374 channel_type != NL80211_CHAN_HT40MINUS)
5375 return -EINVAL;
9588bbd5
JM		 5376 }
5377
5378 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5379 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5380 if (chan == NULL)
5381 return -EINVAL;
9588bbd5
JM		 5382
5383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5384 if (!msg)
5385 return -ENOMEM;
9588bbd5
JM		 5386
5387 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5388 NL80211_CMD_REMAIN_ON_CHANNEL);
5389
5390 if (IS_ERR(hdr)) {
5391 err = PTR_ERR(hdr);
5392 goto free_msg;
5393 }
5394
5395 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5396 channel_type, duration, &cookie);
5397
5398 if (err)
5399 goto free_msg;
5400
5401 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5402
5403 genlmsg_end(msg, hdr);
4c476991
JB		 5404
5405 return genlmsg_reply(msg, info);
9588bbd5
JM		 5406
5407 nla_put_failure:
5408 err = -ENOBUFS;
5409 free_msg:
5410 nlmsg_free(msg);
9588bbd5
JM		 5411 return err;
5412}
5413
5414static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5415 struct genl_info *info)
5416{
4c476991
JB		 5417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5418 struct net_device *dev = info->user_ptr[1];
9588bbd5 5419 u64 cookie;
9588bbd5
JM		 5420
5421 if (!info->attrs[NL80211_ATTR_COOKIE])
5422 return -EINVAL;
5423
4c476991
JB		 5424 if (!rdev->ops->cancel_remain_on_channel)
5425 return -EOPNOTSUPP;
9588bbd5 5426
9588bbd5
JM		 5427 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5428
4c476991 5429 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5430}
5431
13ae75b1
JM		 5432static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5433 u8 *rates, u8 rates_len)
5434{
5435 u8 i;
5436 u32 mask = 0;
5437
5438 for (i = 0; i < rates_len; i++) {
5439 int rate = (rates[i] & 0x7f) * 5;
5440 int ridx;
5441 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5442 struct ieee80211_rate *srate =
5443 &sband->bitrates[ridx];
5444 if (rate == srate->bitrate) {
5445 mask |= 1 << ridx;
5446 break;
5447 }
5448 }
5449 if (ridx == sband->n_bitrates)
5450 return 0; /* rate not found */
5451 }
5452
5453 return mask;
5454}
5455
24db78c0
SW		 5456static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5457 u8 *rates, u8 rates_len,
5458 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5459{
5460 u8 i;
5461
5462 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5463
5464 for (i = 0; i < rates_len; i++) {
5465 int ridx, rbit;
5466
5467 ridx = rates[i] / 8;
5468 rbit = BIT(rates[i] % 8);
5469
5470 /* check validity */
910570b5 5471 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
24db78c0
SW		 5472 return false;
5473
5474 /* check availability */
5475 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5476 mcs[ridx] |= rbit;
5477 else
5478 return false;
5479 }
5480
5481 return true;
5482}
5483
b54452b0 5484static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5485 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5486 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5487 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5488 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5489};
5490
5491static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5492 struct genl_info *info)
5493{
5494 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5496 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5497 int rem, i;
5498 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5499 struct nlattr *tx_rates;
5500 struct ieee80211_supported_band *sband;
5501
5502 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5503 return -EINVAL;
5504
4c476991
JB		 5505 if (!rdev->ops->set_bitrate_mask)
5506 return -EOPNOTSUPP;
13ae75b1
JM		 5507
5508 memset(&mask, 0, sizeof(mask));
5509 /* Default to all rates enabled */
5510 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5511 sband = rdev->wiphy.bands[i];
5512 mask.control[i].legacy =
5513 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5514 if (sband)
5515 memcpy(mask.control[i].mcs,
5516 sband->ht_cap.mcs.rx_mask,
5517 sizeof(mask.control[i].mcs));
5518 else
5519 memset(mask.control[i].mcs, 0,
5520 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5521 }
5522
5523 /*
5524 * The nested attribute uses enum nl80211_band as the index. This maps
5525 * directly to the enum ieee80211_band values used in cfg80211.
5526 */
24db78c0 5527 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5528 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5529 {
5530 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5531 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5532 return -EINVAL;
13ae75b1 5533 sband = rdev->wiphy.bands[band];
4c476991
JB		 5534 if (sband == NULL)
5535 return -EINVAL;
13ae75b1
JM		 5536 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5537 nla_len(tx_rates), nl80211_txattr_policy);
5538 if (tb[NL80211_TXRATE_LEGACY]) {
5539 mask.control[band].legacy = rateset_to_mask(
5540 sband,
5541 nla_data(tb[NL80211_TXRATE_LEGACY]),
5542 nla_len(tb[NL80211_TXRATE_LEGACY]));
24db78c0
SW		 5543 }
5544 if (tb[NL80211_TXRATE_MCS]) {
5545 if (!ht_rateset_to_mask(
5546 sband,
5547 nla_data(tb[NL80211_TXRATE_MCS]),
5548 nla_len(tb[NL80211_TXRATE_MCS]),
5549 mask.control[band].mcs))
5550 return -EINVAL;
5551 }
5552
5553 if (mask.control[band].legacy == 0) {
5554 /* don't allow empty legacy rates if HT
5555 * is not even supported. */
5556 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5557 return -EINVAL;
5558
5559 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5560 if (mask.control[band].mcs[i])
5561 break;
5562
5563 /* legacy and mcs rates may not be both empty */
5564 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5565 return -EINVAL;
13ae75b1
JM		 5566 }
5567 }
5568
4c476991 5569 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5570}
5571
2e161f78 5572static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5573{
4c476991
JB		 5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5575 struct net_device *dev = info->user_ptr[1];
2e161f78 5576 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5577
5578 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5579 return -EINVAL;
5580
2e161f78
JB		 5581 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5582 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5583
9d38d85d 5584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5586 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5587 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5591 return -EOPNOTSUPP;
026331c4
JM		 5592
5593 /* not much point in registering if we can't reply */
4c476991
JB		 5594 if (!rdev->ops->mgmt_tx)
5595 return -EOPNOTSUPP;
026331c4 5596
4c476991 5597 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5598 frame_type,
026331c4
JM		 5599 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5600 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5601}
5602
2e161f78 5603static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5604{
4c476991
JB		 5605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5606 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5607 struct ieee80211_channel *chan;
5608 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5609 bool channel_type_valid = false;
026331c4
JM		 5610 u32 freq;
5611 int err;
d64d373f 5612 void *hdr = NULL;
026331c4 5613 u64 cookie;
e247bd90 5614 struct sk_buff *msg = NULL;
f7ca38df 5615 unsigned int wait = 0;
e247bd90
JB		 5616 bool offchan, no_cck, dont_wait_for_ack;
5617
5618 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5619
5620 if (!info->attrs[NL80211_ATTR_FRAME] ||
5621 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5622 return -EINVAL;
5623
4c476991
JB		 5624 if (!rdev->ops->mgmt_tx)
5625 return -EOPNOTSUPP;
026331c4 5626
9d38d85d 5627 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5628 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5630 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5631 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5632 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5633 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5634 return -EOPNOTSUPP;
026331c4 5635
f7ca38df 5636 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5637 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5638 return -EINVAL;
5639 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5640 }
5641
026331c4
JM		 5642 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5643 channel_type = nla_get_u32(
5644 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5645 if (channel_type != NL80211_CHAN_NO_HT &&
5646 channel_type != NL80211_CHAN_HT20 &&
5647 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5648 channel_type != NL80211_CHAN_HT40MINUS)
5649 return -EINVAL;
252aa631 5650 channel_type_valid = true;
026331c4
JM		 5651 }
5652
f7ca38df
JB		 5653 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5654
7c4ef712
JB		 5655 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5656 return -EINVAL;
5657
e9f935e3
RM		 5658 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5659
026331c4
JM		 5660 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5661 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5662 if (chan == NULL)
5663 return -EINVAL;
026331c4 5664
e247bd90
JB		 5665 if (!dont_wait_for_ack) {
5666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5667 if (!msg)
5668 return -ENOMEM;
026331c4 5669
e247bd90
JB		 5670 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5671 NL80211_CMD_FRAME);
026331c4 5672
e247bd90
JB		 5673 if (IS_ERR(hdr)) {
5674 err = PTR_ERR(hdr);
5675 goto free_msg;
5676 }
026331c4 5677 }
e247bd90 5678
f7ca38df
JB		 5679 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5680 channel_type_valid, wait,
2e161f78
JB		 5681 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5682 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5683 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5684 if (err)
5685 goto free_msg;
5686
e247bd90
JB		 5687 if (msg) {
5688 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5689
e247bd90
JB		 5690 genlmsg_end(msg, hdr);
5691 return genlmsg_reply(msg, info);
5692 }
5693
5694 return 0;
026331c4
JM		 5695
5696 nla_put_failure:
5697 err = -ENOBUFS;
5698 free_msg:
5699 nlmsg_free(msg);
026331c4
JM		 5700 return err;
5701}
5702
f7ca38df
JB		 5703static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5704{
5705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5706 struct net_device *dev = info->user_ptr[1];
5707 u64 cookie;
5708
5709 if (!info->attrs[NL80211_ATTR_COOKIE])
5710 return -EINVAL;
5711
5712 if (!rdev->ops->mgmt_tx_cancel_wait)
5713 return -EOPNOTSUPP;
5714
5715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5716 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5718 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5719 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5721 return -EOPNOTSUPP;
5722
5723 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5724
5725 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5726}
5727
ffb9eb3d
KV		 5728static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5729{
4c476991 5730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5731 struct wireless_dev *wdev;
4c476991 5732 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5733 u8 ps_state;
5734 bool state;
5735 int err;
5736
4c476991
JB		 5737 if (!info->attrs[NL80211_ATTR_PS_STATE])
5738 return -EINVAL;
ffb9eb3d
KV		 5739
5740 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5741
4c476991
JB		 5742 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5743 return -EINVAL;
ffb9eb3d
KV		 5744
5745 wdev = dev->ieee80211_ptr;
5746
4c476991
JB		 5747 if (!rdev->ops->set_power_mgmt)
5748 return -EOPNOTSUPP;
ffb9eb3d
KV		 5749
5750 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5751
5752 if (state == wdev->ps)
4c476991 5753 return 0;
ffb9eb3d 5754
4c476991
JB		 5755 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5756 wdev->ps_timeout);
5757 if (!err)
5758 wdev->ps = state;
ffb9eb3d
KV		 5759 return err;
5760}
5761
5762static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5763{
4c476991 5764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5765 enum nl80211_ps_state ps_state;
5766 struct wireless_dev *wdev;
4c476991 5767 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5768 struct sk_buff *msg;
5769 void *hdr;
5770 int err;
5771
ffb9eb3d
KV		 5772 wdev = dev->ieee80211_ptr;
5773
4c476991
JB		 5774 if (!rdev->ops->set_power_mgmt)
5775 return -EOPNOTSUPP;
ffb9eb3d
KV		 5776
5777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5778 if (!msg)
5779 return -ENOMEM;
ffb9eb3d
KV		 5780
5781 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5782 NL80211_CMD_GET_POWER_SAVE);
5783 if (!hdr) {
4c476991 5784 err = -ENOBUFS;
ffb9eb3d
KV		 5785 goto free_msg;
5786 }
5787
5788 if (wdev->ps)
5789 ps_state = NL80211_PS_ENABLED;
5790 else
5791 ps_state = NL80211_PS_DISABLED;
5792
5793 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5794
5795 genlmsg_end(msg, hdr);
4c476991 5796 return genlmsg_reply(msg, info);
ffb9eb3d 5797
4c476991 5798 nla_put_failure:
ffb9eb3d 5799 err = -ENOBUFS;
4c476991 5800 free_msg:
ffb9eb3d 5801 nlmsg_free(msg);
ffb9eb3d
KV		 5802 return err;
5803}
5804
d6dc1a38
JO		 5805static struct nla_policy
5806nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5807 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5808 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5809 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5810};
5811
5812static int nl80211_set_cqm_rssi(struct genl_info *info,
5813 s32 threshold, u32 hysteresis)
5814{
4c476991 5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5816 struct wireless_dev *wdev;
4c476991 5817 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5818
5819 if (threshold > 0)
5820 return -EINVAL;
5821
d6dc1a38
JO		 5822 wdev = dev->ieee80211_ptr;
5823
4c476991
JB		 5824 if (!rdev->ops->set_cqm_rssi_config)
5825 return -EOPNOTSUPP;
d6dc1a38 5826
074ac8df 5827 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5828 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5829 return -EOPNOTSUPP;
d6dc1a38 5830
4c476991
JB		 5831 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5832 threshold, hysteresis);
d6dc1a38
JO		 5833}
5834
5835static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5836{
5837 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5838 struct nlattr *cqm;
5839 int err;
5840
5841 cqm = info->attrs[NL80211_ATTR_CQM];
5842 if (!cqm) {
5843 err = -EINVAL;
5844 goto out;
5845 }
5846
5847 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5848 nl80211_attr_cqm_policy);
5849 if (err)
5850 goto out;
5851
5852 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5853 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5854 s32 threshold;
5855 u32 hysteresis;
5856 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5857 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5858 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5859 } else
5860 err = -EINVAL;
5861
5862out:
5863 return err;
5864}
5865
29cbe68c
JB		 5866static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5867{
5868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5869 struct net_device *dev = info->user_ptr[1];
5870 struct mesh_config cfg;
c80d545d 5871 struct mesh_setup setup;
29cbe68c
JB		 5872 int err;
5873
5874 /* start with default */
5875 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5876 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5877
24bdd9f4 5878 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5879 /* and parse parameters if given */
24bdd9f4 5880 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5881 if (err)
5882 return err;
5883 }
5884
5885 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5886 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5887 return -EINVAL;
5888
c80d545d
JC		 5889 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5890 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5891
4bb62344
CYY		 5892 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5893 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5894 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5895 return -EINVAL;
5896
c80d545d
JC		 5897 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5898 /* parse additional setup parameters if given */
5899 err = nl80211_parse_mesh_setup(info, &setup);
5900 if (err)
5901 return err;
5902 }
5903
5904 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5905}
5906
5907static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5908{
5909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5910 struct net_device *dev = info->user_ptr[1];
5911
5912 return cfg80211_leave_mesh(rdev, dev);
5913}
5914
ff1b6e69
JB		 5915static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5916{
5917 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5918 struct sk_buff *msg;
5919 void *hdr;
5920
5921 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5922 return -EOPNOTSUPP;
5923
5924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5925 if (!msg)
5926 return -ENOMEM;
5927
5928 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5929 NL80211_CMD_GET_WOWLAN);
5930 if (!hdr)
5931 goto nla_put_failure;
5932
5933 if (rdev->wowlan) {
5934 struct nlattr *nl_wowlan;
5935
5936 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5937 if (!nl_wowlan)
5938 goto nla_put_failure;
5939
5940 if (rdev->wowlan->any)
5941 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5942 if (rdev->wowlan->disconnect)
5943 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5944 if (rdev->wowlan->magic_pkt)
5945 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5946 if (rdev->wowlan->gtk_rekey_failure)
5947 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5948 if (rdev->wowlan->eap_identity_req)
5949 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5950 if (rdev->wowlan->four_way_handshake)
5951 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5952 if (rdev->wowlan->rfkill_release)
5953 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5954 if (rdev->wowlan->n_patterns) {
5955 struct nlattr *nl_pats, *nl_pat;
5956 int i, pat_len;
5957
5958 nl_pats = nla_nest_start(msg,
5959 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5960 if (!nl_pats)
5961 goto nla_put_failure;
5962
5963 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5964 nl_pat = nla_nest_start(msg, i + 1);
5965 if (!nl_pat)
5966 goto nla_put_failure;
5967 pat_len = rdev->wowlan->patterns[i].pattern_len;
5968 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5969 DIV_ROUND_UP(pat_len, 8),
5970 rdev->wowlan->patterns[i].mask);
5971 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5972 pat_len,
5973 rdev->wowlan->patterns[i].pattern);
5974 nla_nest_end(msg, nl_pat);
5975 }
5976 nla_nest_end(msg, nl_pats);
5977 }
5978
5979 nla_nest_end(msg, nl_wowlan);
5980 }
5981
5982 genlmsg_end(msg, hdr);
5983 return genlmsg_reply(msg, info);
5984
5985nla_put_failure:
5986 nlmsg_free(msg);
5987 return -ENOBUFS;
5988}
5989
5990static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5991{
5992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5993 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5994 struct cfg80211_wowlan no_triggers = {};
5995 struct cfg80211_wowlan new_triggers = {};
5996 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5997 int err, i;
5998
5999 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6000 return -EOPNOTSUPP;
6001
6002 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6003 goto no_triggers;
6004
6005 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6006 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6007 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6008 nl80211_wowlan_policy);
6009 if (err)
6010 return err;
6011
6012 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6013 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6014 return -EINVAL;
6015 new_triggers.any = true;
6016 }
6017
6018 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6019 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6020 return -EINVAL;
6021 new_triggers.disconnect = true;
6022 }
6023
6024 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6025 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6026 return -EINVAL;
6027 new_triggers.magic_pkt = true;
6028 }
6029
77dbbb13
JB		 6030 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6031 return -EINVAL;
6032
6033 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6034 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6035 return -EINVAL;
6036 new_triggers.gtk_rekey_failure = true;
6037 }
6038
6039 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6040 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6041 return -EINVAL;
6042 new_triggers.eap_identity_req = true;
6043 }
6044
6045 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6046 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6047 return -EINVAL;
6048 new_triggers.four_way_handshake = true;
6049 }
6050
6051 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6052 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6053 return -EINVAL;
6054 new_triggers.rfkill_release = true;
6055 }
6056
ff1b6e69
JB		 6057 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6058 struct nlattr *pat;
6059 int n_patterns = 0;
6060 int rem, pat_len, mask_len;
6061 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6062
6063 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6064 rem)
6065 n_patterns++;
6066 if (n_patterns > wowlan->n_patterns)
6067 return -EINVAL;
6068
6069 new_triggers.patterns = kcalloc(n_patterns,
6070 sizeof(new_triggers.patterns[0]),
6071 GFP_KERNEL);
6072 if (!new_triggers.patterns)
6073 return -ENOMEM;
6074
6075 new_triggers.n_patterns = n_patterns;
6076 i = 0;
6077
6078 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6079 rem) {
6080 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6081 nla_data(pat), nla_len(pat), NULL);
6082 err = -EINVAL;
6083 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6084 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6085 goto error;
6086 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6087 mask_len = DIV_ROUND_UP(pat_len, 8);
6088 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6089 mask_len)
6090 goto error;
6091 if (pat_len > wowlan->pattern_max_len ||
6092 pat_len < wowlan->pattern_min_len)
6093 goto error;
6094
6095 new_triggers.patterns[i].mask =
6096 kmalloc(mask_len + pat_len, GFP_KERNEL);
6097 if (!new_triggers.patterns[i].mask) {
6098 err = -ENOMEM;
6099 goto error;
6100 }
6101 new_triggers.patterns[i].pattern =
6102 new_triggers.patterns[i].mask + mask_len;
6103 memcpy(new_triggers.patterns[i].mask,
6104 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6105 mask_len);
6106 new_triggers.patterns[i].pattern_len = pat_len;
6107 memcpy(new_triggers.patterns[i].pattern,
6108 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6109 pat_len);
6110 i++;
6111 }
6112 }
6113
6114 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6115 struct cfg80211_wowlan *ntrig;
6116 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6117 GFP_KERNEL);
6118 if (!ntrig) {
6119 err = -ENOMEM;
6120 goto error;
6121 }
6122 cfg80211_rdev_free_wowlan(rdev);
6123 rdev->wowlan = ntrig;
6124 } else {
6125 no_triggers:
6126 cfg80211_rdev_free_wowlan(rdev);
6127 rdev->wowlan = NULL;
6128 }
6129
6130 return 0;
6131 error:
6132 for (i = 0; i < new_triggers.n_patterns; i++)
6133 kfree(new_triggers.patterns[i].mask);
6134 kfree(new_triggers.patterns);
6135 return err;
6136}
6137
e5497d76
JB		 6138static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6139{
6140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6141 struct net_device *dev = info->user_ptr[1];
6142 struct wireless_dev *wdev = dev->ieee80211_ptr;
6143 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6144 struct cfg80211_gtk_rekey_data rekey_data;
6145 int err;
6146
6147 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6148 return -EINVAL;
6149
6150 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6151 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6152 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6153 nl80211_rekey_policy);
6154 if (err)
6155 return err;
6156
6157 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6158 return -ERANGE;
6159 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6160 return -ERANGE;
6161 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6162 return -ERANGE;
6163
6164 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6165 NL80211_KEK_LEN);
6166 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6167 NL80211_KCK_LEN);
6168 memcpy(rekey_data.replay_ctr,
6169 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6170 NL80211_REPLAY_CTR_LEN);
6171
6172 wdev_lock(wdev);
6173 if (!wdev->current_bss) {
6174 err = -ENOTCONN;
6175 goto out;
6176 }
6177
6178 if (!rdev->ops->set_rekey_data) {
6179 err = -EOPNOTSUPP;
6180 goto out;
6181 }
6182
6183 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6184 out:
6185 wdev_unlock(wdev);
6186 return err;
6187}
6188
28946da7
JB		 6189static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6190 struct genl_info *info)
6191{
6192 struct net_device *dev = info->user_ptr[1];
6193 struct wireless_dev *wdev = dev->ieee80211_ptr;
6194
6195 if (wdev->iftype != NL80211_IFTYPE_AP &&
6196 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6197 return -EINVAL;
6198
6199 if (wdev->ap_unexpected_nlpid)
6200 return -EBUSY;
6201
6202 wdev->ap_unexpected_nlpid = info->snd_pid;
6203 return 0;
6204}
6205
7f6cf311
JB		 6206static int nl80211_probe_client(struct sk_buff *skb,
6207 struct genl_info *info)
6208{
6209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6210 struct net_device *dev = info->user_ptr[1];
6211 struct wireless_dev *wdev = dev->ieee80211_ptr;
6212 struct sk_buff *msg;
6213 void *hdr;
6214 const u8 *addr;
6215 u64 cookie;
6216 int err;
6217
6218 if (wdev->iftype != NL80211_IFTYPE_AP &&
6219 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6220 return -EOPNOTSUPP;
6221
6222 if (!info->attrs[NL80211_ATTR_MAC])
6223 return -EINVAL;
6224
6225 if (!rdev->ops->probe_client)
6226 return -EOPNOTSUPP;
6227
6228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6229 if (!msg)
6230 return -ENOMEM;
6231
6232 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6233 NL80211_CMD_PROBE_CLIENT);
6234
6235 if (IS_ERR(hdr)) {
6236 err = PTR_ERR(hdr);
6237 goto free_msg;
6238 }
6239
6240 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6241
6242 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6243 if (err)
6244 goto free_msg;
6245
6246 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6247
6248 genlmsg_end(msg, hdr);
6249
6250 return genlmsg_reply(msg, info);
6251
6252 nla_put_failure:
6253 err = -ENOBUFS;
6254 free_msg:
6255 nlmsg_free(msg);
6256 return err;
6257}
6258
5e760230
JB		 6259static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6260{
6261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6262
6263 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6264 return -EOPNOTSUPP;
6265
6266 if (rdev->ap_beacons_nlpid)
6267 return -EBUSY;
6268
6269 rdev->ap_beacons_nlpid = info->snd_pid;
6270
6271 return 0;
6272}
6273
4c476991
JB		 6274#define NL80211_FLAG_NEED_WIPHY 0x01
6275#define NL80211_FLAG_NEED_NETDEV 0x02
6276#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6277#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6278#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6279 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6280
6281static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6282 struct genl_info *info)
6283{
6284 struct cfg80211_registered_device *rdev;
6285 struct net_device *dev;
6286 int err;
6287 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6288
6289 if (rtnl)
6290 rtnl_lock();
6291
6292 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6293 rdev = cfg80211_get_dev_from_info(info);
6294 if (IS_ERR(rdev)) {
6295 if (rtnl)
6296 rtnl_unlock();
6297 return PTR_ERR(rdev);
6298 }
6299 info->user_ptr[0] = rdev;
6300 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6301 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6302 &rdev, &dev);
4c476991
JB		 6303 if (err) {
6304 if (rtnl)
6305 rtnl_unlock();
6306 return err;
6307 }
41265714
JB		 6308 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6309 !netif_running(dev)) {
d537f5fd
JB		 6310 cfg80211_unlock_rdev(rdev);
6311 dev_put(dev);
41265714
JB		 6312 if (rtnl)
6313 rtnl_unlock();
6314 return -ENETDOWN;
6315 }
4c476991
JB		 6316 info->user_ptr[0] = rdev;
6317 info->user_ptr[1] = dev;
6318 }
6319
6320 return 0;
6321}
6322
6323static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6324 struct genl_info *info)
6325{
6326 if (info->user_ptr[0])
6327 cfg80211_unlock_rdev(info->user_ptr[0]);
6328 if (info->user_ptr[1])
6329 dev_put(info->user_ptr[1]);
6330 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6331 rtnl_unlock();
6332}
6333
55682965
JB		 6334static struct genl_ops nl80211_ops[] = {
6335 {
6336 .cmd = NL80211_CMD_GET_WIPHY,
6337 .doit = nl80211_get_wiphy,
6338 .dumpit = nl80211_dump_wiphy,
6339 .policy = nl80211_policy,
6340 /* can be retrieved by unprivileged users */
4c476991 6341 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6342 },
6343 {
6344 .cmd = NL80211_CMD_SET_WIPHY,
6345 .doit = nl80211_set_wiphy,
6346 .policy = nl80211_policy,
6347 .flags = GENL_ADMIN_PERM,
4c476991 6348 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6349 },
6350 {
6351 .cmd = NL80211_CMD_GET_INTERFACE,
6352 .doit = nl80211_get_interface,
6353 .dumpit = nl80211_dump_interface,
6354 .policy = nl80211_policy,
6355 /* can be retrieved by unprivileged users */
4c476991 6356 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6357 },
6358 {
6359 .cmd = NL80211_CMD_SET_INTERFACE,
6360 .doit = nl80211_set_interface,
6361 .policy = nl80211_policy,
6362 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6363 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6364 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6365 },
6366 {
6367 .cmd = NL80211_CMD_NEW_INTERFACE,
6368 .doit = nl80211_new_interface,
6369 .policy = nl80211_policy,
6370 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6371 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6372 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6373 },
6374 {
6375 .cmd = NL80211_CMD_DEL_INTERFACE,
6376 .doit = nl80211_del_interface,
6377 .policy = nl80211_policy,
41ade00f 6378 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6379 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6380 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6381 },
6382 {
6383 .cmd = NL80211_CMD_GET_KEY,
6384 .doit = nl80211_get_key,
6385 .policy = nl80211_policy,
6386 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6387 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6388 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6389 },
6390 {
6391 .cmd = NL80211_CMD_SET_KEY,
6392 .doit = nl80211_set_key,
6393 .policy = nl80211_policy,
6394 .flags = GENL_ADMIN_PERM,
41265714 6395 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6396 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6397 },
6398 {
6399 .cmd = NL80211_CMD_NEW_KEY,
6400 .doit = nl80211_new_key,
6401 .policy = nl80211_policy,
6402 .flags = GENL_ADMIN_PERM,
41265714 6403 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6404 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6405 },
6406 {
6407 .cmd = NL80211_CMD_DEL_KEY,
6408 .doit = nl80211_del_key,
6409 .policy = nl80211_policy,
55682965 6410 .flags = GENL_ADMIN_PERM,
41265714 6411 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6412 NL80211_FLAG_NEED_RTNL,
55682965 6413 },
ed1b6cc7
JB		 6414 {
6415 .cmd = NL80211_CMD_SET_BEACON,
6416 .policy = nl80211_policy,
6417 .flags = GENL_ADMIN_PERM,
8860020e 6418 .doit = nl80211_set_beacon,
4c476991
JB		 6419 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6420 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6421 },
6422 {
8860020e 6423 .cmd = NL80211_CMD_START_AP,
ed1b6cc7
JB		 6424 .policy = nl80211_policy,
6425 .flags = GENL_ADMIN_PERM,
8860020e 6426 .doit = nl80211_start_ap,
4c476991
JB		 6427 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6428 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6429 },
6430 {
8860020e 6431 .cmd = NL80211_CMD_STOP_AP,
ed1b6cc7
JB		 6432 .policy = nl80211_policy,
6433 .flags = GENL_ADMIN_PERM,
8860020e 6434 .doit = nl80211_stop_ap,
4c476991
JB		 6435 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6436 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6437 },
5727ef1b
JB		 6438 {
6439 .cmd = NL80211_CMD_GET_STATION,
6440 .doit = nl80211_get_station,
2ec600d6 6441 .dumpit = nl80211_dump_station,
5727ef1b 6442 .policy = nl80211_policy,
4c476991
JB		 6443 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6444 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6445 },
6446 {
6447 .cmd = NL80211_CMD_SET_STATION,
6448 .doit = nl80211_set_station,
6449 .policy = nl80211_policy,
6450 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6451 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6452 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6453 },
6454 {
6455 .cmd = NL80211_CMD_NEW_STATION,
6456 .doit = nl80211_new_station,
6457 .policy = nl80211_policy,
6458 .flags = GENL_ADMIN_PERM,
41265714 6459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6460 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6461 },
6462 {
6463 .cmd = NL80211_CMD_DEL_STATION,
6464 .doit = nl80211_del_station,
6465 .policy = nl80211_policy,
2ec600d6 6466 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6467 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6468 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6469 },
6470 {
6471 .cmd = NL80211_CMD_GET_MPATH,
6472 .doit = nl80211_get_mpath,
6473 .dumpit = nl80211_dump_mpath,
6474 .policy = nl80211_policy,
6475 .flags = GENL_ADMIN_PERM,
41265714 6476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6477 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6478 },
6479 {
6480 .cmd = NL80211_CMD_SET_MPATH,
6481 .doit = nl80211_set_mpath,
6482 .policy = nl80211_policy,
6483 .flags = GENL_ADMIN_PERM,
41265714 6484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6485 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6486 },
6487 {
6488 .cmd = NL80211_CMD_NEW_MPATH,
6489 .doit = nl80211_new_mpath,
6490 .policy = nl80211_policy,
6491 .flags = GENL_ADMIN_PERM,
41265714 6492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6493 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6494 },
6495 {
6496 .cmd = NL80211_CMD_DEL_MPATH,
6497 .doit = nl80211_del_mpath,
6498 .policy = nl80211_policy,
9f1ba906 6499 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6500 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6501 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6502 },
6503 {
6504 .cmd = NL80211_CMD_SET_BSS,
6505 .doit = nl80211_set_bss,
6506 .policy = nl80211_policy,
b2e1b302 6507 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6508 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6509 NL80211_FLAG_NEED_RTNL,
b2e1b302 6510 },
f130347c
LR		 6511 {
6512 .cmd = NL80211_CMD_GET_REG,
6513 .doit = nl80211_get_reg,
6514 .policy = nl80211_policy,
6515 /* can be retrieved by unprivileged users */
6516 },
b2e1b302
LR		 6517 {
6518 .cmd = NL80211_CMD_SET_REG,
6519 .doit = nl80211_set_reg,
6520 .policy = nl80211_policy,
6521 .flags = GENL_ADMIN_PERM,
6522 },
6523 {
6524 .cmd = NL80211_CMD_REQ_SET_REG,
6525 .doit = nl80211_req_set_reg,
6526 .policy = nl80211_policy,
93da9cc1 6527 .flags = GENL_ADMIN_PERM,
6528 },
6529 {
24bdd9f4
JC		 6530 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6531 .doit = nl80211_get_mesh_config,
93da9cc1 6532 .policy = nl80211_policy,
6533 /* can be retrieved by unprivileged users */
4c476991
JB		 6534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6535 NL80211_FLAG_NEED_RTNL,
93da9cc1 6536 },
6537 {
24bdd9f4
JC		 6538 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6539 .doit = nl80211_update_mesh_config,
93da9cc1 6540 .policy = nl80211_policy,
9aed3cc1 6541 .flags = GENL_ADMIN_PERM,
29cbe68c 6542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6543 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6544 },
2a519311
JB		 6545 {
6546 .cmd = NL80211_CMD_TRIGGER_SCAN,
6547 .doit = nl80211_trigger_scan,
6548 .policy = nl80211_policy,
6549 .flags = GENL_ADMIN_PERM,
41265714 6550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6551 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6552 },
6553 {
6554 .cmd = NL80211_CMD_GET_SCAN,
6555 .policy = nl80211_policy,
6556 .dumpit = nl80211_dump_scan,
6557 },
807f8a8c
LC		 6558 {
6559 .cmd = NL80211_CMD_START_SCHED_SCAN,
6560 .doit = nl80211_start_sched_scan,
6561 .policy = nl80211_policy,
6562 .flags = GENL_ADMIN_PERM,
6563 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6564 NL80211_FLAG_NEED_RTNL,
6565 },
6566 {
6567 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6568 .doit = nl80211_stop_sched_scan,
6569 .policy = nl80211_policy,
6570 .flags = GENL_ADMIN_PERM,
6571 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6572 NL80211_FLAG_NEED_RTNL,
6573 },
636a5d36
JM		 6574 {
6575 .cmd = NL80211_CMD_AUTHENTICATE,
6576 .doit = nl80211_authenticate,
6577 .policy = nl80211_policy,
6578 .flags = GENL_ADMIN_PERM,
41265714 6579 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6580 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6581 },
6582 {
6583 .cmd = NL80211_CMD_ASSOCIATE,
6584 .doit = nl80211_associate,
6585 .policy = nl80211_policy,
6586 .flags = GENL_ADMIN_PERM,
41265714 6587 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6588 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6589 },
6590 {
6591 .cmd = NL80211_CMD_DEAUTHENTICATE,
6592 .doit = nl80211_deauthenticate,
6593 .policy = nl80211_policy,
6594 .flags = GENL_ADMIN_PERM,
41265714 6595 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6596 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6597 },
6598 {
6599 .cmd = NL80211_CMD_DISASSOCIATE,
6600 .doit = nl80211_disassociate,
6601 .policy = nl80211_policy,
6602 .flags = GENL_ADMIN_PERM,
41265714 6603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6604 NL80211_FLAG_NEED_RTNL,
636a5d36 6605 },
04a773ad
JB		 6606 {
6607 .cmd = NL80211_CMD_JOIN_IBSS,
6608 .doit = nl80211_join_ibss,
6609 .policy = nl80211_policy,
6610 .flags = GENL_ADMIN_PERM,
41265714 6611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6612 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6613 },
6614 {
6615 .cmd = NL80211_CMD_LEAVE_IBSS,
6616 .doit = nl80211_leave_ibss,
6617 .policy = nl80211_policy,
6618 .flags = GENL_ADMIN_PERM,
41265714 6619 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6620 NL80211_FLAG_NEED_RTNL,
04a773ad 6621 },
aff89a9b
JB		 6622#ifdef CONFIG_NL80211_TESTMODE
6623 {
6624 .cmd = NL80211_CMD_TESTMODE,
6625 .doit = nl80211_testmode_do,
71063f0e 6626 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6627 .policy = nl80211_policy,
6628 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6629 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6630 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6631 },
6632#endif
b23aa676
SO		 6633 {
6634 .cmd = NL80211_CMD_CONNECT,
6635 .doit = nl80211_connect,
6636 .policy = nl80211_policy,
6637 .flags = GENL_ADMIN_PERM,
41265714 6638 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6639 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6640 },
6641 {
6642 .cmd = NL80211_CMD_DISCONNECT,
6643 .doit = nl80211_disconnect,
6644 .policy = nl80211_policy,
6645 .flags = GENL_ADMIN_PERM,
41265714 6646 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6647 NL80211_FLAG_NEED_RTNL,
b23aa676 6648 },
463d0183
JB		 6649 {
6650 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6651 .doit = nl80211_wiphy_netns,
6652 .policy = nl80211_policy,
6653 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6654 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6655 NL80211_FLAG_NEED_RTNL,
463d0183 6656 },
61fa713c
HS		 6657 {
6658 .cmd = NL80211_CMD_GET_SURVEY,
6659 .policy = nl80211_policy,
6660 .dumpit = nl80211_dump_survey,
6661 },
67fbb16b
SO		 6662 {
6663 .cmd = NL80211_CMD_SET_PMKSA,
6664 .doit = nl80211_setdel_pmksa,
6665 .policy = nl80211_policy,
6666 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6667 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6668 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6669 },
6670 {
6671 .cmd = NL80211_CMD_DEL_PMKSA,
6672 .doit = nl80211_setdel_pmksa,
6673 .policy = nl80211_policy,
6674 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6675 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6676 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6677 },
6678 {
6679 .cmd = NL80211_CMD_FLUSH_PMKSA,
6680 .doit = nl80211_flush_pmksa,
6681 .policy = nl80211_policy,
6682 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6683 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6684 NL80211_FLAG_NEED_RTNL,
67fbb16b 6685 },
9588bbd5
JM		 6686 {
6687 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6688 .doit = nl80211_remain_on_channel,
6689 .policy = nl80211_policy,
6690 .flags = GENL_ADMIN_PERM,
41265714 6691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6692 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6693 },
6694 {
6695 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6696 .doit = nl80211_cancel_remain_on_channel,
6697 .policy = nl80211_policy,
6698 .flags = GENL_ADMIN_PERM,
41265714 6699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6700 NL80211_FLAG_NEED_RTNL,
9588bbd5 6701 },
13ae75b1
JM		 6702 {
6703 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6704 .doit = nl80211_set_tx_bitrate_mask,
6705 .policy = nl80211_policy,
6706 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6707 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6708 NL80211_FLAG_NEED_RTNL,
13ae75b1 6709 },
026331c4 6710 {
2e161f78
JB		 6711 .cmd = NL80211_CMD_REGISTER_FRAME,
6712 .doit = nl80211_register_mgmt,
026331c4
JM		 6713 .policy = nl80211_policy,
6714 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6715 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6716 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6717 },
6718 {
2e161f78
JB		 6719 .cmd = NL80211_CMD_FRAME,
6720 .doit = nl80211_tx_mgmt,
026331c4 6721 .policy = nl80211_policy,
f7ca38df
JB		 6722 .flags = GENL_ADMIN_PERM,
6723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6724 NL80211_FLAG_NEED_RTNL,
6725 },
6726 {
6727 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6728 .doit = nl80211_tx_mgmt_cancel_wait,
6729 .policy = nl80211_policy,
026331c4 6730 .flags = GENL_ADMIN_PERM,
41265714 6731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6732 NL80211_FLAG_NEED_RTNL,
026331c4 6733 },
ffb9eb3d
KV		 6734 {
6735 .cmd = NL80211_CMD_SET_POWER_SAVE,
6736 .doit = nl80211_set_power_save,
6737 .policy = nl80211_policy,
6738 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6739 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6740 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6741 },
6742 {
6743 .cmd = NL80211_CMD_GET_POWER_SAVE,
6744 .doit = nl80211_get_power_save,
6745 .policy = nl80211_policy,
6746 /* can be retrieved by unprivileged users */
4c476991
JB		 6747 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6748 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6749 },
d6dc1a38
JO		 6750 {
6751 .cmd = NL80211_CMD_SET_CQM,
6752 .doit = nl80211_set_cqm,
6753 .policy = nl80211_policy,
6754 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6755 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6756 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6757 },
f444de05
JB		 6758 {
6759 .cmd = NL80211_CMD_SET_CHANNEL,
6760 .doit = nl80211_set_channel,
6761 .policy = nl80211_policy,
6762 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6763 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6764 NL80211_FLAG_NEED_RTNL,
f444de05 6765 },
e8347eba
BJ		 6766 {
6767 .cmd = NL80211_CMD_SET_WDS_PEER,
6768 .doit = nl80211_set_wds_peer,
6769 .policy = nl80211_policy,
6770 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6771 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6772 NL80211_FLAG_NEED_RTNL,
e8347eba 6773 },
29cbe68c
JB		 6774 {
6775 .cmd = NL80211_CMD_JOIN_MESH,
6776 .doit = nl80211_join_mesh,
6777 .policy = nl80211_policy,
6778 .flags = GENL_ADMIN_PERM,
6779 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6780 NL80211_FLAG_NEED_RTNL,
6781 },
6782 {
6783 .cmd = NL80211_CMD_LEAVE_MESH,
6784 .doit = nl80211_leave_mesh,
6785 .policy = nl80211_policy,
6786 .flags = GENL_ADMIN_PERM,
6787 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6788 NL80211_FLAG_NEED_RTNL,
6789 },
ff1b6e69
JB		 6790 {
6791 .cmd = NL80211_CMD_GET_WOWLAN,
6792 .doit = nl80211_get_wowlan,
6793 .policy = nl80211_policy,
6794 /* can be retrieved by unprivileged users */
6795 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6796 NL80211_FLAG_NEED_RTNL,
6797 },
6798 {
6799 .cmd = NL80211_CMD_SET_WOWLAN,
6800 .doit = nl80211_set_wowlan,
6801 .policy = nl80211_policy,
6802 .flags = GENL_ADMIN_PERM,
6803 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6804 NL80211_FLAG_NEED_RTNL,
6805 },
e5497d76
JB		 6806 {
6807 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6808 .doit = nl80211_set_rekey_data,
6809 .policy = nl80211_policy,
6810 .flags = GENL_ADMIN_PERM,
6811 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6812 NL80211_FLAG_NEED_RTNL,
6813 },
109086ce
AN		 6814 {
6815 .cmd = NL80211_CMD_TDLS_MGMT,
6816 .doit = nl80211_tdls_mgmt,
6817 .policy = nl80211_policy,
6818 .flags = GENL_ADMIN_PERM,
6819 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6820 NL80211_FLAG_NEED_RTNL,
6821 },
6822 {
6823 .cmd = NL80211_CMD_TDLS_OPER,
6824 .doit = nl80211_tdls_oper,
6825 .policy = nl80211_policy,
6826 .flags = GENL_ADMIN_PERM,
6827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6828 NL80211_FLAG_NEED_RTNL,
6829 },
28946da7
JB		 6830 {
6831 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6832 .doit = nl80211_register_unexpected_frame,
6833 .policy = nl80211_policy,
6834 .flags = GENL_ADMIN_PERM,
6835 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6836 NL80211_FLAG_NEED_RTNL,
6837 },
7f6cf311
JB		 6838 {
6839 .cmd = NL80211_CMD_PROBE_CLIENT,
6840 .doit = nl80211_probe_client,
6841 .policy = nl80211_policy,
6842 .flags = GENL_ADMIN_PERM,
6843 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6844 NL80211_FLAG_NEED_RTNL,
6845 },
5e760230
JB		 6846 {
6847 .cmd = NL80211_CMD_REGISTER_BEACONS,
6848 .doit = nl80211_register_beacons,
6849 .policy = nl80211_policy,
6850 .flags = GENL_ADMIN_PERM,
6851 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6852 NL80211_FLAG_NEED_RTNL,
6853 },
1d9d9213
SW		 6854 {
6855 .cmd = NL80211_CMD_SET_NOACK_MAP,
6856 .doit = nl80211_set_noack_map,
6857 .policy = nl80211_policy,
6858 .flags = GENL_ADMIN_PERM,
6859 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6860 NL80211_FLAG_NEED_RTNL,
6861 },
6862
55682965 6863};
9588bbd5 6864
6039f6d2
JM		 6865static struct genl_multicast_group nl80211_mlme_mcgrp = {
6866 .name = "mlme",
6867};
55682965
JB		 6868
6869/* multicast groups */
6870static struct genl_multicast_group nl80211_config_mcgrp = {
6871 .name = "config",
6872};
2a519311
JB		 6873static struct genl_multicast_group nl80211_scan_mcgrp = {
6874 .name = "scan",
6875};
73d54c9e
LR		 6876static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6877 .name = "regulatory",
6878};
55682965
JB		 6879
6880/* notification functions */
6881
6882void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6883{
6884 struct sk_buff *msg;
6885
fd2120ca 6886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6887 if (!msg)
6888 return;
6889
6890 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6891 nlmsg_free(msg);
6892 return;
6893 }
6894
463d0183
JB		 6895 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6896 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6897}
6898
362a415d
JB		 6899static int nl80211_add_scan_req(struct sk_buff *msg,
6900 struct cfg80211_registered_device *rdev)
6901{
6902 struct cfg80211_scan_request *req = rdev->scan_req;
6903 struct nlattr *nest;
6904 int i;
6905
667503dd
JB		 6906 ASSERT_RDEV_LOCK(rdev);
6907
362a415d
JB		 6908 if (WARN_ON(!req))
6909 return 0;
6910
6911 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6912 if (!nest)
6913 goto nla_put_failure;
6914 for (i = 0; i < req->n_ssids; i++)
6915 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6916 nla_nest_end(msg, nest);
6917
6918 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6919 if (!nest)
6920 goto nla_put_failure;
6921 for (i = 0; i < req->n_channels; i++)
6922 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6923 nla_nest_end(msg, nest);
6924
6925 if (req->ie)
6926 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6927
6928 return 0;
6929 nla_put_failure:
6930 return -ENOBUFS;
6931}
6932
a538e2d5
JB		 6933static int nl80211_send_scan_msg(struct sk_buff *msg,
6934 struct cfg80211_registered_device *rdev,
6935 struct net_device *netdev,
6936 u32 pid, u32 seq, int flags,
6937 u32 cmd)
2a519311
JB		 6938{
6939 void *hdr;
6940
6941 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6942 if (!hdr)
6943 return -1;
6944
b5850a7a 6945 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6946 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6947
362a415d
JB		 6948 /* ignore errors and send incomplete event anyway */
6949 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6950
6951 return genlmsg_end(msg, hdr);
6952
6953 nla_put_failure:
6954 genlmsg_cancel(msg, hdr);
6955 return -EMSGSIZE;
6956}
6957
807f8a8c
LC		 6958static int
6959nl80211_send_sched_scan_msg(struct sk_buff *msg,
6960 struct cfg80211_registered_device *rdev,
6961 struct net_device *netdev,
6962 u32 pid, u32 seq, int flags, u32 cmd)
6963{
6964 void *hdr;
6965
6966 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6967 if (!hdr)
6968 return -1;
6969
6970 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6971 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6972
6973 return genlmsg_end(msg, hdr);
6974
6975 nla_put_failure:
6976 genlmsg_cancel(msg, hdr);
6977 return -EMSGSIZE;
6978}
6979
a538e2d5
JB		 6980void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6981 struct net_device *netdev)
6982{
6983 struct sk_buff *msg;
6984
6985 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6986 if (!msg)
6987 return;
6988
6989 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6990 NL80211_CMD_TRIGGER_SCAN) < 0) {
6991 nlmsg_free(msg);
6992 return;
6993 }
6994
463d0183
JB		 6995 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6996 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6997}
6998
2a519311
JB		 6999void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7000 struct net_device *netdev)
7001{
7002 struct sk_buff *msg;
7003
fd2120ca 7004 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7005 if (!msg)
7006 return;
7007
a538e2d5
JB		 7008 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7009 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 7010 nlmsg_free(msg);
7011 return;
7012 }
7013
463d0183
JB		 7014 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7015 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7016}
7017
7018void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7019 struct net_device *netdev)
7020{
7021 struct sk_buff *msg;
7022
fd2120ca 7023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 7024 if (!msg)
7025 return;
7026
a538e2d5
JB		 7027 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7028 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 7029 nlmsg_free(msg);
7030 return;
7031 }
7032
463d0183
JB		 7033 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7034 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 7035}
7036
807f8a8c
LC		 7037void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7038 struct net_device *netdev)
7039{
7040 struct sk_buff *msg;
7041
7042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7043 if (!msg)
7044 return;
7045
7046 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7047 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7048 nlmsg_free(msg);
7049 return;
7050 }
7051
7052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7053 nl80211_scan_mcgrp.id, GFP_KERNEL);
7054}
7055
7056void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7057 struct net_device *netdev, u32 cmd)
7058{
7059 struct sk_buff *msg;
7060
7061 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7062 if (!msg)
7063 return;
7064
7065 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7066 nlmsg_free(msg);
7067 return;
7068 }
7069
7070 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7071 nl80211_scan_mcgrp.id, GFP_KERNEL);
7072}
7073
73d54c9e
LR		 7074/*
7075 * This can happen on global regulatory changes or device specific settings
7076 * based on custom world regulatory domains.
7077 */
7078void nl80211_send_reg_change_event(struct regulatory_request *request)
7079{
7080 struct sk_buff *msg;
7081 void *hdr;
7082
fd2120ca 7083 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7084 if (!msg)
7085 return;
7086
7087 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7088 if (!hdr) {
7089 nlmsg_free(msg);
7090 return;
7091 }
7092
7093 /* Userspace can always count this one always being set */
7094 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7095
7096 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7097 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7098 NL80211_REGDOM_TYPE_WORLD);
7099 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7100 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7101 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7102 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7103 request->intersect)
7104 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7105 NL80211_REGDOM_TYPE_INTERSECTION);
7106 else {
7107 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7108 NL80211_REGDOM_TYPE_COUNTRY);
7109 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7110 }
7111
7112 if (wiphy_idx_valid(request->wiphy_idx))
7113 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7114
3b7b72ee 7115 genlmsg_end(msg, hdr);
73d54c9e 7116
bc43b28c 7117 rcu_read_lock();
463d0183 7118 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7119 GFP_ATOMIC);
7120 rcu_read_unlock();
73d54c9e
LR		 7121
7122 return;
7123
7124nla_put_failure:
7125 genlmsg_cancel(msg, hdr);
7126 nlmsg_free(msg);
7127}
7128
6039f6d2
JM		 7129static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7130 struct net_device *netdev,
7131 const u8 *buf, size_t len,
e6d6e342 7132 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7133{
7134 struct sk_buff *msg;
7135 void *hdr;
7136
e6d6e342 7137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7138 if (!msg)
7139 return;
7140
7141 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7142 if (!hdr) {
7143 nlmsg_free(msg);
7144 return;
7145 }
7146
7147 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7148 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7149 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7150
3b7b72ee 7151 genlmsg_end(msg, hdr);
6039f6d2 7152
463d0183
JB		 7153 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7154 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7155 return;
7156
7157 nla_put_failure:
7158 genlmsg_cancel(msg, hdr);
7159 nlmsg_free(msg);
7160}
7161
7162void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7163 struct net_device *netdev, const u8 *buf,
7164 size_t len, gfp_t gfp)
6039f6d2
JM		 7165{
7166 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7167 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7168}
7169
7170void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7171 struct net_device *netdev, const u8 *buf,
e6d6e342 7172 size_t len, gfp_t gfp)
6039f6d2 7173{
e6d6e342
JB		 7174 nl80211_send_mlme_event(rdev, netdev, buf, len,
7175 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7176}
7177
53b46b84 7178void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7179 struct net_device *netdev, const u8 *buf,
7180 size_t len, gfp_t gfp)
6039f6d2
JM		 7181{
7182 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7183 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7184}
7185
53b46b84
JM		 7186void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7187 struct net_device *netdev, const u8 *buf,
e6d6e342 7188 size_t len, gfp_t gfp)
6039f6d2
JM		 7189{
7190 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7191 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7192}
7193
cf4e594e
JM		 7194void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7195 struct net_device *netdev, const u8 *buf,
7196 size_t len, gfp_t gfp)
7197{
7198 nl80211_send_mlme_event(rdev, netdev, buf, len,
7199 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7200}
7201
7202void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7203 struct net_device *netdev, const u8 *buf,
7204 size_t len, gfp_t gfp)
7205{
7206 nl80211_send_mlme_event(rdev, netdev, buf, len,
7207 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7208}
7209
1b06bb40
LR		 7210static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7211 struct net_device *netdev, int cmd,
e6d6e342 7212 const u8 *addr, gfp_t gfp)
1965c853
JM		 7213{
7214 struct sk_buff *msg;
7215 void *hdr;
7216
e6d6e342 7217 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7218 if (!msg)
7219 return;
7220
7221 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7222 if (!hdr) {
7223 nlmsg_free(msg);
7224 return;
7225 }
7226
7227 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7228 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7229 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7230 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7231
3b7b72ee 7232 genlmsg_end(msg, hdr);
1965c853 7233
463d0183
JB		 7234 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7235 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7236 return;
7237
7238 nla_put_failure:
7239 genlmsg_cancel(msg, hdr);
7240 nlmsg_free(msg);
7241}
7242
7243void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7244 struct net_device *netdev, const u8 *addr,
7245 gfp_t gfp)
1965c853
JM		 7246{
7247 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7248 addr, gfp);
1965c853
JM		 7249}
7250
7251void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7252 struct net_device *netdev, const u8 *addr,
7253 gfp_t gfp)
1965c853 7254{
e6d6e342
JB		 7255 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7256 addr, gfp);
1965c853
JM		 7257}
7258
b23aa676
SO		 7259void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7260 struct net_device *netdev, const u8 *bssid,
7261 const u8 *req_ie, size_t req_ie_len,
7262 const u8 *resp_ie, size_t resp_ie_len,
7263 u16 status, gfp_t gfp)
7264{
7265 struct sk_buff *msg;
7266 void *hdr;
7267
7268 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7269 if (!msg)
7270 return;
7271
7272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7273 if (!hdr) {
7274 nlmsg_free(msg);
7275 return;
7276 }
7277
7278 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7279 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7280 if (bssid)
7281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7282 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7283 if (req_ie)
7284 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7285 if (resp_ie)
7286 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7287
3b7b72ee 7288 genlmsg_end(msg, hdr);
b23aa676 7289
463d0183
JB		 7290 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7291 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7292 return;
7293
7294 nla_put_failure:
7295 genlmsg_cancel(msg, hdr);
7296 nlmsg_free(msg);
7297
7298}
7299
7300void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7301 struct net_device *netdev, const u8 *bssid,
7302 const u8 *req_ie, size_t req_ie_len,
7303 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7304{
7305 struct sk_buff *msg;
7306 void *hdr;
7307
7308 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7309 if (!msg)
7310 return;
7311
7312 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7313 if (!hdr) {
7314 nlmsg_free(msg);
7315 return;
7316 }
7317
7318 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7319 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7320 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7321 if (req_ie)
7322 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7323 if (resp_ie)
7324 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7325
3b7b72ee 7326 genlmsg_end(msg, hdr);
b23aa676 7327
463d0183
JB		 7328 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7329 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7330 return;
7331
7332 nla_put_failure:
7333 genlmsg_cancel(msg, hdr);
7334 nlmsg_free(msg);
7335
7336}
7337
7338void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7339 struct net_device *netdev, u16 reason,
667503dd 7340 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7341{
7342 struct sk_buff *msg;
7343 void *hdr;
7344
667503dd 7345 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7346 if (!msg)
7347 return;
7348
7349 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7350 if (!hdr) {
7351 nlmsg_free(msg);
7352 return;
7353 }
7354
7355 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7356 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7357 if (from_ap && reason)
7358 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7359 if (from_ap)
7360 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7361 if (ie)
7362 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7363
3b7b72ee 7364 genlmsg_end(msg, hdr);
b23aa676 7365
463d0183
JB		 7366 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7367 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7368 return;
7369
7370 nla_put_failure:
7371 genlmsg_cancel(msg, hdr);
7372 nlmsg_free(msg);
7373
7374}
7375
04a773ad
JB		 7376void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7377 struct net_device *netdev, const u8 *bssid,
7378 gfp_t gfp)
7379{
7380 struct sk_buff *msg;
7381 void *hdr;
7382
fd2120ca 7383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7384 if (!msg)
7385 return;
7386
7387 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7388 if (!hdr) {
7389 nlmsg_free(msg);
7390 return;
7391 }
7392
7393 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7394 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7395 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7396
3b7b72ee 7397 genlmsg_end(msg, hdr);
04a773ad 7398
463d0183
JB		 7399 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7400 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7401 return;
7402
7403 nla_put_failure:
7404 genlmsg_cancel(msg, hdr);
7405 nlmsg_free(msg);
7406}
7407
c93b5e71
JC		 7408void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7409 struct net_device *netdev,
7410 const u8 *macaddr, const u8* ie, u8 ie_len,
7411 gfp_t gfp)
7412{
7413 struct sk_buff *msg;
7414 void *hdr;
7415
7416 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7417 if (!msg)
7418 return;
7419
7420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7421 if (!hdr) {
7422 nlmsg_free(msg);
7423 return;
7424 }
7425
7426 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7427 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7428 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7429 if (ie_len && ie)
7430 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7431
3b7b72ee 7432 genlmsg_end(msg, hdr);
c93b5e71
JC		 7433
7434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7435 nl80211_mlme_mcgrp.id, gfp);
7436 return;
7437
7438 nla_put_failure:
7439 genlmsg_cancel(msg, hdr);
7440 nlmsg_free(msg);
7441}
7442
a3b8b056
JM		 7443void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7444 struct net_device *netdev, const u8 *addr,
7445 enum nl80211_key_type key_type, int key_id,
e6d6e342 7446 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7447{
7448 struct sk_buff *msg;
7449 void *hdr;
7450
e6d6e342 7451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7452 if (!msg)
7453 return;
7454
7455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7456 if (!hdr) {
7457 nlmsg_free(msg);
7458 return;
7459 }
7460
7461 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7462 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7463 if (addr)
7464 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7465 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7466 if (key_id != -1)
7467 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7468 if (tsc)
7469 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7470
3b7b72ee 7471 genlmsg_end(msg, hdr);
a3b8b056 7472
463d0183
JB		 7473 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7474 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7475 return;
7476
7477 nla_put_failure:
7478 genlmsg_cancel(msg, hdr);
7479 nlmsg_free(msg);
7480}
7481
6bad8766
LR		 7482void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7483 struct ieee80211_channel *channel_before,
7484 struct ieee80211_channel *channel_after)
7485{
7486 struct sk_buff *msg;
7487 void *hdr;
7488 struct nlattr *nl_freq;
7489
fd2120ca 7490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7491 if (!msg)
7492 return;
7493
7494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7495 if (!hdr) {
7496 nlmsg_free(msg);
7497 return;
7498 }
7499
7500 /*
7501 * Since we are applying the beacon hint to a wiphy we know its
7502 * wiphy_idx is valid
7503 */
7504 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7505
7506 /* Before */
7507 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7508 if (!nl_freq)
7509 goto nla_put_failure;
7510 if (nl80211_msg_put_channel(msg, channel_before))
7511 goto nla_put_failure;
7512 nla_nest_end(msg, nl_freq);
7513
7514 /* After */
7515 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7516 if (!nl_freq)
7517 goto nla_put_failure;
7518 if (nl80211_msg_put_channel(msg, channel_after))
7519 goto nla_put_failure;
7520 nla_nest_end(msg, nl_freq);
7521
3b7b72ee 7522 genlmsg_end(msg, hdr);
6bad8766 7523
463d0183
JB		 7524 rcu_read_lock();
7525 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7526 GFP_ATOMIC);
7527 rcu_read_unlock();
6bad8766
LR		 7528
7529 return;
7530
7531nla_put_failure:
7532 genlmsg_cancel(msg, hdr);
7533 nlmsg_free(msg);
7534}
7535
9588bbd5
JM		 7536static void nl80211_send_remain_on_chan_event(
7537 int cmd, struct cfg80211_registered_device *rdev,
7538 struct net_device *netdev, u64 cookie,
7539 struct ieee80211_channel *chan,
7540 enum nl80211_channel_type channel_type,
7541 unsigned int duration, gfp_t gfp)
7542{
7543 struct sk_buff *msg;
7544 void *hdr;
7545
7546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7547 if (!msg)
7548 return;
7549
7550 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7551 if (!hdr) {
7552 nlmsg_free(msg);
7553 return;
7554 }
7555
7556 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7557 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7558 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7559 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7560 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7561
7562 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7563 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7564
3b7b72ee 7565 genlmsg_end(msg, hdr);
9588bbd5
JM		 7566
7567 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7568 nl80211_mlme_mcgrp.id, gfp);
7569 return;
7570
7571 nla_put_failure:
7572 genlmsg_cancel(msg, hdr);
7573 nlmsg_free(msg);
7574}
7575
7576void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7577 struct net_device *netdev, u64 cookie,
7578 struct ieee80211_channel *chan,
7579 enum nl80211_channel_type channel_type,
7580 unsigned int duration, gfp_t gfp)
7581{
7582 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7583 rdev, netdev, cookie, chan,
7584 channel_type, duration, gfp);
7585}
7586
7587void nl80211_send_remain_on_channel_cancel(
7588 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7589 u64 cookie, struct ieee80211_channel *chan,
7590 enum nl80211_channel_type channel_type, gfp_t gfp)
7591{
7592 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7593 rdev, netdev, cookie, chan,
7594 channel_type, 0, gfp);
7595}
7596
98b62183
JB		 7597void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7598 struct net_device *dev, const u8 *mac_addr,
7599 struct station_info *sinfo, gfp_t gfp)
7600{
7601 struct sk_buff *msg;
7602
7603 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7604 if (!msg)
7605 return;
7606
66266b3a
JL		 7607 if (nl80211_send_station(msg, 0, 0, 0,
7608 rdev, dev, mac_addr, sinfo) < 0) {
98b62183
JB		 7609 nlmsg_free(msg);
7610 return;
7611 }
7612
7613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7614 nl80211_mlme_mcgrp.id, gfp);
7615}
7616
ec15e68b
JM		 7617void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7618 struct net_device *dev, const u8 *mac_addr,
7619 gfp_t gfp)
7620{
7621 struct sk_buff *msg;
7622 void *hdr;
7623
7624 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7625 if (!msg)
7626 return;
7627
7628 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7629 if (!hdr) {
7630 nlmsg_free(msg);
7631 return;
7632 }
7633
7634 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7635 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7636
3b7b72ee 7637 genlmsg_end(msg, hdr);
ec15e68b
JM		 7638
7639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7640 nl80211_mlme_mcgrp.id, gfp);
7641 return;
7642
7643 nla_put_failure:
7644 genlmsg_cancel(msg, hdr);
7645 nlmsg_free(msg);
7646}
7647
b92ab5d8
JB		 7648static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7649 const u8 *addr, gfp_t gfp)
28946da7
JB		 7650{
7651 struct wireless_dev *wdev = dev->ieee80211_ptr;
7652 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7653 struct sk_buff *msg;
7654 void *hdr;
7655 int err;
7656 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7657
7658 if (!nlpid)
7659 return false;
7660
7661 msg = nlmsg_new(100, gfp);
7662 if (!msg)
7663 return true;
7664
b92ab5d8 7665 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7666 if (!hdr) {
7667 nlmsg_free(msg);
7668 return true;
7669 }
7670
7671 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7672 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7673 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7674
7675 err = genlmsg_end(msg, hdr);
7676 if (err < 0) {
7677 nlmsg_free(msg);
7678 return true;
7679 }
7680
7681 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7682 return true;
7683
7684 nla_put_failure:
7685 genlmsg_cancel(msg, hdr);
7686 nlmsg_free(msg);
7687 return true;
7688}
7689
b92ab5d8
JB		 7690bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7691{
7692 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7693 addr, gfp);
7694}
7695
7696bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7697 const u8 *addr, gfp_t gfp)
7698{
7699 return __nl80211_unexpected_frame(dev,
7700 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7701 addr, gfp);
7702}
7703
2e161f78
JB		 7704int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7705 struct net_device *netdev, u32 nlpid,
804483e9
JB		 7706 int freq, int sig_dbm,
7707 const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7708{
7709 struct sk_buff *msg;
7710 void *hdr;
026331c4
JM		 7711
7712 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7713 if (!msg)
7714 return -ENOMEM;
7715
2e161f78 7716 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7717 if (!hdr) {
7718 nlmsg_free(msg);
7719 return -ENOMEM;
7720 }
7721
7722 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7723 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
804483e9
JB		 7725 if (sig_dbm)
7726 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
026331c4
JM		 7727 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7728
3b7b72ee 7729 genlmsg_end(msg, hdr);
026331c4 7730
3b7b72ee 7731 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7732
7733 nla_put_failure:
7734 genlmsg_cancel(msg, hdr);
7735 nlmsg_free(msg);
7736 return -ENOBUFS;
7737}
7738
2e161f78
JB		 7739void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7740 struct net_device *netdev, u64 cookie,
7741 const u8 *buf, size_t len, bool ack,
7742 gfp_t gfp)
026331c4
JM		 7743{
7744 struct sk_buff *msg;
7745 void *hdr;
7746
7747 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7748 if (!msg)
7749 return;
7750
2e161f78 7751 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7752 if (!hdr) {
7753 nlmsg_free(msg);
7754 return;
7755 }
7756
7757 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7758 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7759 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7760 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7761 if (ack)
7762 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7763
3b7b72ee 7764 genlmsg_end(msg, hdr);
026331c4
JM		 7765
7766 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7767 return;
7768
7769 nla_put_failure:
7770 genlmsg_cancel(msg, hdr);
7771 nlmsg_free(msg);
7772}
7773
d6dc1a38
JO		 7774void
7775nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7776 struct net_device *netdev,
7777 enum nl80211_cqm_rssi_threshold_event rssi_event,
7778 gfp_t gfp)
7779{
7780 struct sk_buff *msg;
7781 struct nlattr *pinfoattr;
7782 void *hdr;
7783
7784 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7785 if (!msg)
7786 return;
7787
7788 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7789 if (!hdr) {
7790 nlmsg_free(msg);
7791 return;
7792 }
7793
7794 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7795 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7796
7797 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7798 if (!pinfoattr)
7799 goto nla_put_failure;
7800
7801 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7802 rssi_event);
7803
7804 nla_nest_end(msg, pinfoattr);
7805
3b7b72ee 7806 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7807
7808 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7809 nl80211_mlme_mcgrp.id, gfp);
7810 return;
7811
7812 nla_put_failure:
7813 genlmsg_cancel(msg, hdr);
7814 nlmsg_free(msg);
7815}
7816
e5497d76
JB		 7817void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7818 struct net_device *netdev, const u8 *bssid,
7819 const u8 *replay_ctr, gfp_t gfp)
7820{
7821 struct sk_buff *msg;
7822 struct nlattr *rekey_attr;
7823 void *hdr;
7824
7825 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7826 if (!msg)
7827 return;
7828
7829 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7830 if (!hdr) {
7831 nlmsg_free(msg);
7832 return;
7833 }
7834
7835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7838
7839 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7840 if (!rekey_attr)
7841 goto nla_put_failure;
7842
7843 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7844 NL80211_REPLAY_CTR_LEN, replay_ctr);
7845
7846 nla_nest_end(msg, rekey_attr);
7847
3b7b72ee 7848 genlmsg_end(msg, hdr);
e5497d76
JB		 7849
7850 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7851 nl80211_mlme_mcgrp.id, gfp);
7852 return;
7853
7854 nla_put_failure:
7855 genlmsg_cancel(msg, hdr);
7856 nlmsg_free(msg);
7857}
7858
c9df56b4
JM		 7859void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7860 struct net_device *netdev, int index,
7861 const u8 *bssid, bool preauth, gfp_t gfp)
7862{
7863 struct sk_buff *msg;
7864 struct nlattr *attr;
7865 void *hdr;
7866
7867 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7868 if (!msg)
7869 return;
7870
7871 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7872 if (!hdr) {
7873 nlmsg_free(msg);
7874 return;
7875 }
7876
7877 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7878 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7879
7880 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7881 if (!attr)
7882 goto nla_put_failure;
7883
7884 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7885 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7886 if (preauth)
7887 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7888
7889 nla_nest_end(msg, attr);
7890
3b7b72ee 7891 genlmsg_end(msg, hdr);
c9df56b4
JM		 7892
7893 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7894 nl80211_mlme_mcgrp.id, gfp);
7895 return;
7896
7897 nla_put_failure:
7898 genlmsg_cancel(msg, hdr);
7899 nlmsg_free(msg);
7900}
7901
c063dbf5
JB		 7902void
7903nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7904 struct net_device *netdev, const u8 *peer,
7905 u32 num_packets, gfp_t gfp)
7906{
7907 struct sk_buff *msg;
7908 struct nlattr *pinfoattr;
7909 void *hdr;
7910
7911 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7912 if (!msg)
7913 return;
7914
7915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7916 if (!hdr) {
7917 nlmsg_free(msg);
7918 return;
7919 }
7920
7921 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7922 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7923 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7924
7925 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7926 if (!pinfoattr)
7927 goto nla_put_failure;
7928
7929 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7930
7931 nla_nest_end(msg, pinfoattr);
7932
3b7b72ee 7933 genlmsg_end(msg, hdr);
c063dbf5
JB		 7934
7935 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7936 nl80211_mlme_mcgrp.id, gfp);
7937 return;
7938
7939 nla_put_failure:
7940 genlmsg_cancel(msg, hdr);
7941 nlmsg_free(msg);
7942}
7943
7f6cf311
JB		 7944void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7945 u64 cookie, bool acked, gfp_t gfp)
7946{
7947 struct wireless_dev *wdev = dev->ieee80211_ptr;
7948 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7949 struct sk_buff *msg;
7950 void *hdr;
7951 int err;
7952
7953 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7954 if (!msg)
7955 return;
7956
7957 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7958 if (!hdr) {
7959 nlmsg_free(msg);
7960 return;
7961 }
7962
7963 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7964 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7965 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7966 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7967 if (acked)
7968 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7969
7970 err = genlmsg_end(msg, hdr);
7971 if (err < 0) {
7972 nlmsg_free(msg);
7973 return;
7974 }
7975
7976 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7977 nl80211_mlme_mcgrp.id, gfp);
7978 return;
7979
7980 nla_put_failure:
7981 genlmsg_cancel(msg, hdr);
7982 nlmsg_free(msg);
7983}
7984EXPORT_SYMBOL(cfg80211_probe_status);
7985
5e760230
JB		 7986void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7987 const u8 *frame, size_t len,
804483e9 7988 int freq, int sig_dbm, gfp_t gfp)
5e760230
JB		 7989{
7990 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7991 struct sk_buff *msg;
7992 void *hdr;
7993 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7994
7995 if (!nlpid)
7996 return;
7997
7998 msg = nlmsg_new(len + 100, gfp);
7999 if (!msg)
8000 return;
8001
8002 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8003 if (!hdr) {
8004 nlmsg_free(msg);
8005 return;
8006 }
8007
8008 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
8009 if (freq)
8010 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
804483e9
JB		 8011 if (sig_dbm)
8012 NLA_PUT_U32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm);
5e760230
JB		 8013 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
8014
8015 genlmsg_end(msg, hdr);
8016
8017 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8018 return;
8019
8020 nla_put_failure:
8021 genlmsg_cancel(msg, hdr);
8022 nlmsg_free(msg);
8023}
8024EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8025
026331c4
JM		 8026static int nl80211_netlink_notify(struct notifier_block * nb,
8027 unsigned long state,
8028 void *_notify)
8029{
8030 struct netlink_notify *notify = _notify;
8031 struct cfg80211_registered_device *rdev;
8032 struct wireless_dev *wdev;
8033
8034 if (state != NETLINK_URELEASE)
8035 return NOTIFY_DONE;
8036
8037 rcu_read_lock();
8038
5e760230 8039 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 8040 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 8041 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 8042 if (rdev->ap_beacons_nlpid == notify->pid)
8043 rdev->ap_beacons_nlpid = 0;
8044 }
026331c4
JM		 8045
8046 rcu_read_unlock();
8047
8048 return NOTIFY_DONE;
8049}
8050
8051static struct notifier_block nl80211_netlink_notifier = {
8052 .notifier_call = nl80211_netlink_notify,
8053};
8054
55682965
JB		 8055/* initialisation/exit functions */
8056
8057int nl80211_init(void)
8058{
0d63cbb5 8059 int err;
55682965 8060
0d63cbb5
MM		 8061 err = genl_register_family_with_ops(&nl80211_fam,
8062 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 8063 if (err)
8064 return err;
8065
55682965
JB		 8066 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8067 if (err)
8068 goto err_out;
8069
2a519311
JB		 8070 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8071 if (err)
8072 goto err_out;
8073
73d54c9e
LR		 8074 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8075 if (err)
8076 goto err_out;
8077
6039f6d2
JM		 8078 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8079 if (err)
8080 goto err_out;
8081
aff89a9b
JB		 8082#ifdef CONFIG_NL80211_TESTMODE
8083 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8084 if (err)
8085 goto err_out;
8086#endif
8087
026331c4
JM		 8088 err = netlink_register_notifier(&nl80211_netlink_notifier);
8089 if (err)
8090 goto err_out;
8091
55682965
JB		 8092 return 0;
8093 err_out:
8094 genl_unregister_family(&nl80211_fam);
8095 return err;
8096}
8097
8098void nl80211_exit(void)
8099{
026331c4 8100 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8101 genl_unregister_family(&nl80211_fam);
8102}
ubuntu-bionic-kernel mirror