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{nl,cfg,mac}80211: Allow Setting Multicast Rate in Mesh
[deliverable/linux.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
463d0183 50static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 51 struct cfg80211_registered_device **rdev,
55682965
JB		 52 struct net_device **dev)
53{
463d0183 54 struct nlattr **attrs = info->attrs;
55682965
JB		 55 int ifindex;
56
bba95fef 57 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 58 return -EINVAL;
59
bba95fef 60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 62 if (!*dev)
63 return -ENODEV;
64
463d0183 65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 66 if (IS_ERR(*rdev)) {
55682965 67 dev_put(*dev);
79c97e97 68 return PTR_ERR(*rdev);
55682965
JB		 69 }
70
71 return 0;
72}
73
74/* policy for the attributes */
b54452b0 75static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 78 .len = 20-1 },
31888487 79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 87
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 91
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 94
b9454e83 95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 102 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 103
104 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
105 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
106 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
107 .len = IEEE80211_MAX_DATA_LEN },
108 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
109 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 110 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
111 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
113 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 115 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 116 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 117 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 118 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
119 .len = IEEE80211_MAX_MESH_ID_LEN },
120 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 121
b2e1b302
LR		 122 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
123 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124
9f1ba906
JM		 125 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 128 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
129 .len = NL80211_MAX_SUPP_RATES },
50b12f59 130 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 131
24bdd9f4 132 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 133 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 134
6c739419 135 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 136
137 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
138 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 140 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
141 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 142
143 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
144 .len = IEEE80211_MAX_SSID_LEN },
145 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
146 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 147 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 148 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 149 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 150 [NL80211_ATTR_STA_FLAGS2] = {
151 .len = sizeof(struct nl80211_sta_flag_update),
152 },
3f77316c 153 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 154 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
155 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 156 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
157 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
158 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 159 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 160 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 161 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
162 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 163 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
164 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 165 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 166 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
167 .len = IEEE80211_MAX_DATA_LEN },
168 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 169 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 170 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 171 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 172 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 173 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
174 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 175 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 176 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
177 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 178 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 179 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 180 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 181 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 182 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 183 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 184 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 185 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 186 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 187 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
188 .len = IEEE80211_MAX_DATA_LEN },
189 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
190 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 191 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 192 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 193 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 194 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
197 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
198 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 199 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 200 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
201 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 202 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 203 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
204 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
205 .len = NL80211_HT_CAPABILITY_LEN
206 },
1d9d9213 207 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
55682965
JB		 208};
209
e31b8213 210/* policy for the key attributes */
b54452b0 211static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 212 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 213 [NL80211_KEY_IDX] = { .type = NLA_U8 },
214 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 215 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 216 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
217 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 218 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 219 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
220};
221
222/* policy for the key default flags */
223static const struct nla_policy
224nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
225 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
226 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 227};
228
ff1b6e69
JB		 229/* policy for WoWLAN attributes */
230static const struct nla_policy
231nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
232 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
233 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
235 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 236 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
237 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
239 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 240};
241
e5497d76
JB		 242/* policy for GTK rekey offload attributes */
243static const struct nla_policy
244nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
245 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
246 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
247 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
248};
249
a1f1c21c
LC		 250static const struct nla_policy
251nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
252 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_SSID_LEN },
254};
255
a043897a
HS		 256/* ifidx get helper */
257static int nl80211_get_ifidx(struct netlink_callback *cb)
258{
259 int res;
260
261 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
262 nl80211_fam.attrbuf, nl80211_fam.maxattr,
263 nl80211_policy);
264 if (res)
265 return res;
266
267 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
268 return -EINVAL;
269
270 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
271 if (!res)
272 return -EINVAL;
273 return res;
274}
275
67748893
JB		 276static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
277 struct netlink_callback *cb,
278 struct cfg80211_registered_device **rdev,
279 struct net_device **dev)
280{
281 int ifidx = cb->args[0];
282 int err;
283
284 if (!ifidx)
285 ifidx = nl80211_get_ifidx(cb);
286 if (ifidx < 0)
287 return ifidx;
288
289 cb->args[0] = ifidx;
290
291 rtnl_lock();
292
293 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
294 if (!*dev) {
295 err = -ENODEV;
296 goto out_rtnl;
297 }
298
299 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 300 if (IS_ERR(*rdev)) {
301 err = PTR_ERR(*rdev);
67748893
JB		 302 goto out_rtnl;
303 }
304
305 return 0;
306 out_rtnl:
307 rtnl_unlock();
308 return err;
309}
310
311static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
312{
313 cfg80211_unlock_rdev(rdev);
314 rtnl_unlock();
315}
316
f4a11bb0
JB		 317/* IE validation */
318static bool is_valid_ie_attr(const struct nlattr *attr)
319{
320 const u8 *pos;
321 int len;
322
323 if (!attr)
324 return true;
325
326 pos = nla_data(attr);
327 len = nla_len(attr);
328
329 while (len) {
330 u8 elemlen;
331
332 if (len < 2)
333 return false;
334 len -= 2;
335
336 elemlen = pos[1];
337 if (elemlen > len)
338 return false;
339
340 len -= elemlen;
341 pos += 2 + elemlen;
342 }
343
344 return true;
345}
346
55682965
JB		 347/* message building helper */
348static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
349 int flags, u8 cmd)
350{
351 /* since there is no private header just add the generic one */
352 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
353}
354
5dab3b8a
LR		 355static int nl80211_msg_put_channel(struct sk_buff *msg,
356 struct ieee80211_channel *chan)
357{
358 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
359 chan->center_freq);
360
361 if (chan->flags & IEEE80211_CHAN_DISABLED)
362 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
363 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
364 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
365 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
366 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
367 if (chan->flags & IEEE80211_CHAN_RADAR)
368 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
369
370 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
371 DBM_TO_MBM(chan->max_power));
372
373 return 0;
374
375 nla_put_failure:
376 return -ENOBUFS;
377}
378
55682965
JB		 379/* netlink command implementations */
380
b9454e83
JB		 381struct key_parse {
382 struct key_params p;
383 int idx;
e31b8213 384 int type;
b9454e83 385 bool def, defmgmt;
dbd2fd65 386 bool def_uni, def_multi;
b9454e83
JB		 387};
388
389static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
390{
391 struct nlattr *tb[NL80211_KEY_MAX + 1];
392 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
393 nl80211_key_policy);
394 if (err)
395 return err;
396
397 k->def = !!tb[NL80211_KEY_DEFAULT];
398 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
399
dbd2fd65
JB		 400 if (k->def) {
401 k->def_uni = true;
402 k->def_multi = true;
403 }
404 if (k->defmgmt)
405 k->def_multi = true;
406
b9454e83
JB		 407 if (tb[NL80211_KEY_IDX])
408 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
409
410 if (tb[NL80211_KEY_DATA]) {
411 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
412 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
413 }
414
415 if (tb[NL80211_KEY_SEQ]) {
416 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
417 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
418 }
419
420 if (tb[NL80211_KEY_CIPHER])
421 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
422
e31b8213
JB		 423 if (tb[NL80211_KEY_TYPE]) {
424 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
425 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
426 return -EINVAL;
427 }
428
dbd2fd65
JB		 429 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
430 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
431 int err = nla_parse_nested(kdt,
432 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
433 tb[NL80211_KEY_DEFAULT_TYPES],
434 nl80211_key_default_policy);
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);
876 CMD(add_beacon, NEW_BEACON);
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
ed1b6cc7
JB		 2080static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2081{
2082 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2083 struct beacon_parameters *info);
4c476991
JB		 2084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2085 struct net_device *dev = info->user_ptr[1];
56d1893d 2086 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2087 struct beacon_parameters params;
56d1893d 2088 int haveinfo = 0, err;
ed1b6cc7 2089
9946ecfb
JM		 2090 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2091 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2092 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2093 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2094 return -EINVAL;
2095
074ac8df 2096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2098 return -EOPNOTSUPP;
eec60b03 2099
56d1893d
JB		 2100 memset(&params, 0, sizeof(params));
2101
ed1b6cc7
JB		 2102 switch (info->genlhdr->cmd) {
2103 case NL80211_CMD_NEW_BEACON:
2104 /* these are required for NEW_BEACON */
2105 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2106 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2107 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2108 return -EINVAL;
ed1b6cc7 2109
56d1893d
JB		 2110 params.interval =
2111 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2112 params.dtim_period =
2113 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2114
2115 err = cfg80211_validate_beacon_int(rdev, params.interval);
2116 if (err)
2117 return err;
2118
32e9de84
JM		 2119 /*
2120 * In theory, some of these attributes could be required for
2121 * NEW_BEACON, but since they were not used when the command was
2122 * originally added, keep them optional for old user space
2123 * programs to work with drivers that do not need the additional
2124 * information.
2125 */
2126 if (info->attrs[NL80211_ATTR_SSID]) {
2127 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2128 params.ssid_len =
2129 nla_len(info->attrs[NL80211_ATTR_SSID]);
2130 if (params.ssid_len == 0 ||
2131 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2132 return -EINVAL;
2133 }
2134
2135 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2136 params.hidden_ssid = nla_get_u32(
2137 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2138 if (params.hidden_ssid !=
2139 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2140 params.hidden_ssid !=
2141 NL80211_HIDDEN_SSID_ZERO_LEN &&
2142 params.hidden_ssid !=
2143 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2144 return -EINVAL;
2145 }
2146
5fb628e9
JM		 2147 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2148
2149 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2150 params.auth_type = nla_get_u32(
2151 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2152 if (!nl80211_valid_auth_type(params.auth_type))
2153 return -EINVAL;
2154 } else
2155 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2156
2157 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2158 NL80211_MAX_NR_CIPHER_SUITES);
2159 if (err)
2160 return err;
2161
79c97e97 2162 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2163 break;
2164 case NL80211_CMD_SET_BEACON:
79c97e97 2165 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2166 break;
2167 default:
2168 WARN_ON(1);
4c476991 2169 return -EOPNOTSUPP;
ed1b6cc7
JB		 2170 }
2171
4c476991
JB		 2172 if (!call)
2173 return -EOPNOTSUPP;
ed1b6cc7 2174
ed1b6cc7
JB		 2175 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2176 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2177 params.head_len =
2178 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2179 haveinfo = 1;
2180 }
2181
2182 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2183 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2184 params.tail_len =
2185 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2186 haveinfo = 1;
2187 }
2188
4c476991
JB		 2189 if (!haveinfo)
2190 return -EINVAL;
3b85875a 2191
9946ecfb
JM		 2192 if (info->attrs[NL80211_ATTR_IE]) {
2193 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2194 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2195 }
2196
2197 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2198 params.proberesp_ies =
2199 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2200 params.proberesp_ies_len =
2201 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2202 }
2203
2204 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2205 params.assocresp_ies =
2206 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2207 params.assocresp_ies_len =
2208 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2209 }
2210
00f740e1
AN		 2211 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2212 params.probe_resp =
2213 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2214 params.probe_resp_len =
2215 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2216 }
2217
56d1893d
JB		 2218 err = call(&rdev->wiphy, dev, &params);
2219 if (!err && params.interval)
2220 wdev->beacon_interval = params.interval;
2221 return err;
ed1b6cc7
JB		 2222}
2223
2224static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2225{
4c476991
JB		 2226 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2227 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2228 struct wireless_dev *wdev = dev->ieee80211_ptr;
2229 int err;
ed1b6cc7 2230
4c476991
JB		 2231 if (!rdev->ops->del_beacon)
2232 return -EOPNOTSUPP;
ed1b6cc7 2233
074ac8df 2234 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2235 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2236 return -EOPNOTSUPP;
3b85875a 2237
56d1893d
JB		 2238 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2239 if (!err)
2240 wdev->beacon_interval = 0;
2241 return err;
ed1b6cc7
JB		 2242}
2243
5727ef1b
JB		 2244static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2245 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2246 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2247 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2248 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2249 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2250};
2251
eccb8e8f
JB		 2252static int parse_station_flags(struct genl_info *info,
2253 struct station_parameters *params)
5727ef1b
JB		 2254{
2255 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2256 struct nlattr *nla;
5727ef1b
JB		 2257 int flag;
2258
eccb8e8f
JB		 2259 /*
2260 * Try parsing the new attribute first so userspace
2261 * can specify both for older kernels.
2262 */
2263 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2264 if (nla) {
2265 struct nl80211_sta_flag_update *sta_flags;
2266
2267 sta_flags = nla_data(nla);
2268 params->sta_flags_mask = sta_flags->mask;
2269 params->sta_flags_set = sta_flags->set;
2270 if ((params->sta_flags_mask |
2271 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2272 return -EINVAL;
2273 return 0;
2274 }
2275
2276 /* if present, parse the old attribute */
5727ef1b 2277
eccb8e8f 2278 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2279 if (!nla)
2280 return 0;
2281
2282 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2283 nla, sta_flags_policy))
2284 return -EINVAL;
2285
eccb8e8f
JB		 2286 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2287 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2288
2289 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2290 if (flags[flag])
eccb8e8f 2291 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2292
2293 return 0;
2294}
2295
c8dcfd8a
FF		 2296static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2297 int attr)
2298{
2299 struct nlattr *rate;
2300 u16 bitrate;
2301
2302 rate = nla_nest_start(msg, attr);
2303 if (!rate)
2304 goto nla_put_failure;
2305
2306 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2307 bitrate = cfg80211_calculate_bitrate(info);
2308 if (bitrate > 0)
2309 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2310
2311 if (info->flags & RATE_INFO_FLAGS_MCS)
2312 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2313 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2314 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2315 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2316 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2317
2318 nla_nest_end(msg, rate);
2319 return true;
2320
2321nla_put_failure:
2322 return false;
2323}
2324
fd5b74dc
JB		 2325static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2326 int flags, struct net_device *dev,
98b62183 2327 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2328{
2329 void *hdr;
f4263c98 2330 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2331
2332 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2333 if (!hdr)
2334 return -1;
2335
2336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2337 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2338
f5ea9120
JB		 2339 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2340
2ec600d6
LCC		 2341 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2342 if (!sinfoattr)
fd5b74dc 2343 goto nla_put_failure;
ebe27c91
MSS		 2344 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2345 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2346 sinfo->connected_time);
2ec600d6
LCC		 2347 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2348 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2349 sinfo->inactive_time);
2350 if (sinfo->filled & STATION_INFO_RX_BYTES)
2351 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2352 sinfo->rx_bytes);
2353 if (sinfo->filled & STATION_INFO_TX_BYTES)
2354 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2355 sinfo->tx_bytes);
2356 if (sinfo->filled & STATION_INFO_LLID)
2357 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2358 sinfo->llid);
2359 if (sinfo->filled & STATION_INFO_PLID)
2360 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2361 sinfo->plid);
2362 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2363 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2364 sinfo->plink_state);
420e7fab
HR		 2365 if (sinfo->filled & STATION_INFO_SIGNAL)
2366 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2367 sinfo->signal);
541a45a1
BR		 2368 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2369 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2370 sinfo->signal_avg);
420e7fab 2371 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2372 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2373 NL80211_STA_INFO_TX_BITRATE))
2374 goto nla_put_failure;
2375 }
2376 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2377 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2378 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2379 goto nla_put_failure;
420e7fab 2380 }
98c8a60a
JM		 2381 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2382 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2383 sinfo->rx_packets);
2384 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2385 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2386 sinfo->tx_packets);
b206b4ef
BR		 2387 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2388 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2389 sinfo->tx_retries);
2390 if (sinfo->filled & STATION_INFO_TX_FAILED)
2391 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2392 sinfo->tx_failed);
f4263c98
PS		 2393 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2394 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2395 if (!bss_param)
2396 goto nla_put_failure;
2397
2398 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2399 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2400 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2401 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2402 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2403 NLA_PUT_FLAG(msg,
2404 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2405 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2406 sinfo->bss_param.dtim_period);
2407 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2408 sinfo->bss_param.beacon_interval);
2409
2410 nla_nest_end(msg, bss_param);
2411 }
bb6e753e
HS		 2412 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2413 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2414 sizeof(struct nl80211_sta_flag_update),
2415 &sinfo->sta_flags);
2ec600d6 2416 nla_nest_end(msg, sinfoattr);
fd5b74dc 2417
040bdf71 2418 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2419 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2420 sinfo->assoc_req_ies);
2421
fd5b74dc
JB		 2422 return genlmsg_end(msg, hdr);
2423
2424 nla_put_failure:
bc3ed28c
TG		 2425 genlmsg_cancel(msg, hdr);
2426 return -EMSGSIZE;
fd5b74dc
JB		 2427}
2428
2ec600d6 2429static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2430 struct netlink_callback *cb)
2ec600d6 2431{
2ec600d6
LCC		 2432 struct station_info sinfo;
2433 struct cfg80211_registered_device *dev;
bba95fef 2434 struct net_device *netdev;
2ec600d6 2435 u8 mac_addr[ETH_ALEN];
bba95fef 2436 int sta_idx = cb->args[1];
2ec600d6 2437 int err;
2ec600d6 2438
67748893
JB		 2439 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2440 if (err)
2441 return err;
bba95fef
JB		 2442
2443 if (!dev->ops->dump_station) {
eec60b03 2444 err = -EOPNOTSUPP;
bba95fef
JB		 2445 goto out_err;
2446 }
2447
bba95fef 2448 while (1) {
f612cedf 2449 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2450 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2451 mac_addr, &sinfo);
2452 if (err == -ENOENT)
2453 break;
2454 if (err)
3b85875a 2455 goto out_err;
bba95fef
JB		 2456
2457 if (nl80211_send_station(skb,
2458 NETLINK_CB(cb->skb).pid,
2459 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2460 netdev, mac_addr,
2461 &sinfo) < 0)
2462 goto out;
2463
2464 sta_idx++;
2465 }
2466
2467
2468 out:
2469 cb->args[1] = sta_idx;
2470 err = skb->len;
bba95fef 2471 out_err:
67748893 2472 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2473
2474 return err;
2ec600d6 2475}
fd5b74dc 2476
5727ef1b
JB		 2477static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2478{
4c476991
JB		 2479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2480 struct net_device *dev = info->user_ptr[1];
2ec600d6 2481 struct station_info sinfo;
fd5b74dc
JB		 2482 struct sk_buff *msg;
2483 u8 *mac_addr = NULL;
4c476991 2484 int err;
fd5b74dc 2485
2ec600d6 2486 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2487
2488 if (!info->attrs[NL80211_ATTR_MAC])
2489 return -EINVAL;
2490
2491 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2492
4c476991
JB		 2493 if (!rdev->ops->get_station)
2494 return -EOPNOTSUPP;
3b85875a 2495
4c476991 2496 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2497 if (err)
4c476991 2498 return err;
2ec600d6 2499
fd2120ca 2500 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2501 if (!msg)
4c476991 2502 return -ENOMEM;
fd5b74dc
JB		 2503
2504 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2505 dev, mac_addr, &sinfo) < 0) {
2506 nlmsg_free(msg);
2507 return -ENOBUFS;
2508 }
3b85875a 2509
4c476991 2510 return genlmsg_reply(msg, info);
5727ef1b
JB		 2511}
2512
2513/*
c258d2de 2514 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2515 */
80b99899
JB		 2516static struct net_device *get_vlan(struct genl_info *info,
2517 struct cfg80211_registered_device *rdev)
5727ef1b 2518{
463d0183 2519 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2520 struct net_device *v;
2521 int ret;
2522
2523 if (!vlanattr)
2524 return NULL;
2525
2526 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2527 if (!v)
2528 return ERR_PTR(-ENODEV);
2529
2530 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2531 ret = -EINVAL;
2532 goto error;
5727ef1b 2533 }
80b99899
JB		 2534
2535 if (!netif_running(v)) {
2536 ret = -ENETDOWN;
2537 goto error;
2538 }
2539
2540 return v;
2541 error:
2542 dev_put(v);
2543 return ERR_PTR(ret);
5727ef1b
JB		 2544}
2545
2546static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2547{
4c476991 2548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2549 int err;
4c476991 2550 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2551 struct station_parameters params;
2552 u8 *mac_addr = NULL;
2553
2554 memset(&params, 0, sizeof(params));
2555
2556 params.listen_interval = -1;
57cf8043 2557 params.plink_state = -1;
5727ef1b
JB		 2558
2559 if (info->attrs[NL80211_ATTR_STA_AID])
2560 return -EINVAL;
2561
2562 if (!info->attrs[NL80211_ATTR_MAC])
2563 return -EINVAL;
2564
2565 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2566
2567 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2568 params.supported_rates =
2569 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2570 params.supported_rates_len =
2571 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2572 }
2573
2574 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2575 params.listen_interval =
2576 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2577
36aedc90
JM		 2578 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2579 params.ht_capa =
2580 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2581
eccb8e8f 2582 if (parse_station_flags(info, &params))
5727ef1b
JB		 2583 return -EINVAL;
2584
2ec600d6
LCC		 2585 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2586 params.plink_action =
2587 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2588
9c3990aa
JC		 2589 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2590 params.plink_state =
2591 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2592
80b99899
JB		 2593 params.vlan = get_vlan(info, rdev);
2594 if (IS_ERR(params.vlan))
2595 return PTR_ERR(params.vlan);
a97f4424
JB		 2596
2597 /* validate settings */
2598 err = 0;
2599
2600 switch (dev->ieee80211_ptr->iftype) {
2601 case NL80211_IFTYPE_AP:
2602 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2603 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2604 /* disallow mesh-specific things */
2605 if (params.plink_action)
2606 err = -EINVAL;
2607 break;
074ac8df 2608 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2609 case NL80211_IFTYPE_STATION:
07ba55d7 2610 /* disallow things sta doesn't support */
a97f4424
JB		 2611 if (params.plink_action)
2612 err = -EINVAL;
2613 if (params.vlan)
2614 err = -EINVAL;
07ba55d7
AN		 2615 if (params.supported_rates &&
2616 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2617 err = -EINVAL;
2618 if (params.ht_capa)
2619 err = -EINVAL;
2620 if (params.listen_interval >= 0)
2621 err = -EINVAL;
07ba55d7
AN		 2622 if (params.sta_flags_mask &
2623 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2624 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2625 err = -EINVAL;
2626 /* can't change the TDLS bit */
2627 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2628 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2629 err = -EINVAL;
2630 break;
2631 case NL80211_IFTYPE_MESH_POINT:
2632 /* disallow things mesh doesn't support */
2633 if (params.vlan)
2634 err = -EINVAL;
2635 if (params.ht_capa)
2636 err = -EINVAL;
2637 if (params.listen_interval >= 0)
2638 err = -EINVAL;
b39c48fa
JC		 2639 if (params.sta_flags_mask &
2640 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2641 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2642 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2643 err = -EINVAL;
2644 break;
2645 default:
2646 err = -EINVAL;
034d655e
JB		 2647 }
2648
5727ef1b
JB		 2649 if (err)
2650 goto out;
2651
79c97e97 2652 if (!rdev->ops->change_station) {
5727ef1b
JB		 2653 err = -EOPNOTSUPP;
2654 goto out;
2655 }
2656
79c97e97 2657 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2658
2659 out:
2660 if (params.vlan)
2661 dev_put(params.vlan);
3b85875a 2662
5727ef1b
JB		 2663 return err;
2664}
2665
c75786c9
EP		 2666static struct nla_policy
2667nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2668 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2669 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2670};
2671
5727ef1b
JB		 2672static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2673{
4c476991 2674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2675 int err;
4c476991 2676 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2677 struct station_parameters params;
2678 u8 *mac_addr = NULL;
2679
2680 memset(&params, 0, sizeof(params));
2681
2682 if (!info->attrs[NL80211_ATTR_MAC])
2683 return -EINVAL;
2684
5727ef1b
JB		 2685 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2686 return -EINVAL;
2687
2688 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2689 return -EINVAL;
2690
0e956c13
TLSC		 2691 if (!info->attrs[NL80211_ATTR_STA_AID])
2692 return -EINVAL;
2693
5727ef1b
JB		 2694 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2695 params.supported_rates =
2696 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2697 params.supported_rates_len =
2698 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2699 params.listen_interval =
2700 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2701
0e956c13
TLSC		 2702 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2703 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2704 return -EINVAL;
51b50fbe 2705
36aedc90
JM		 2706 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2707 params.ht_capa =
2708 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2709
96b78dff
JC		 2710 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2711 params.plink_action =
2712 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2713
eccb8e8f 2714 if (parse_station_flags(info, &params))
5727ef1b
JB		 2715 return -EINVAL;
2716
c75786c9 2717 /* parse WME attributes if sta is WME capable */
cedb5412 2718 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2719 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2720 info->attrs[NL80211_ATTR_STA_WME]) {
2721 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2722 struct nlattr *nla;
2723
2724 nla = info->attrs[NL80211_ATTR_STA_WME];
2725 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2726 nl80211_sta_wme_policy);
2727 if (err)
2728 return err;
2729
2730 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2731 params.uapsd_queues =
2732 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2733 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2734 return -EINVAL;
c75786c9
EP		 2735
2736 if (tb[NL80211_STA_WME_MAX_SP])
2737 params.max_sp =
2738 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2739
2740 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2741 return -EINVAL;
3b9ce80c
JB		 2742
2743 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
c75786c9
EP		 2744 }
2745
0e956c13 2746 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2748 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
07ba55d7
AN		 2749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2750 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2751 return -EINVAL;
2752
2753 /*
2754 * Only managed stations can add TDLS peers, and only when the
2755 * wiphy supports external TDLS setup.
2756 */
2757 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2758 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2759 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2760 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
4c476991 2761 return -EINVAL;
0e956c13 2762
80b99899
JB		 2763 params.vlan = get_vlan(info, rdev);
2764 if (IS_ERR(params.vlan))
2765 return PTR_ERR(params.vlan);
a97f4424
JB		 2766
2767 /* validate settings */
2768 err = 0;
2769
79c97e97 2770 if (!rdev->ops->add_station) {
5727ef1b
JB		 2771 err = -EOPNOTSUPP;
2772 goto out;
2773 }
2774
79c97e97 2775 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2776
2777 out:
2778 if (params.vlan)
2779 dev_put(params.vlan);
5727ef1b
JB		 2780 return err;
2781}
2782
2783static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2784{
4c476991
JB		 2785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2786 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2787 u8 *mac_addr = NULL;
2788
2789 if (info->attrs[NL80211_ATTR_MAC])
2790 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2791
e80cf853 2792 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2793 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2794 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2795 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2796 return -EINVAL;
5727ef1b 2797
4c476991
JB		 2798 if (!rdev->ops->del_station)
2799 return -EOPNOTSUPP;
3b85875a 2800
4c476991 2801 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2802}
2803
2ec600d6
LCC		 2804static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2805 int flags, struct net_device *dev,
2806 u8 *dst, u8 *next_hop,
2807 struct mpath_info *pinfo)
2808{
2809 void *hdr;
2810 struct nlattr *pinfoattr;
2811
2812 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2813 if (!hdr)
2814 return -1;
2815
2816 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2817 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2818 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2819
f5ea9120
JB		 2820 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2821
2ec600d6
LCC		 2822 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2823 if (!pinfoattr)
2824 goto nla_put_failure;
2825 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2826 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2827 pinfo->frame_qlen);
d19b3bf6
RP		 2828 if (pinfo->filled & MPATH_INFO_SN)
2829 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2830 pinfo->sn);
2ec600d6
LCC		 2831 if (pinfo->filled & MPATH_INFO_METRIC)
2832 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2833 pinfo->metric);
2834 if (pinfo->filled & MPATH_INFO_EXPTIME)
2835 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2836 pinfo->exptime);
2837 if (pinfo->filled & MPATH_INFO_FLAGS)
2838 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2839 pinfo->flags);
2840 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2841 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2842 pinfo->discovery_timeout);
2843 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2844 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2845 pinfo->discovery_retries);
2846
2847 nla_nest_end(msg, pinfoattr);
2848
2849 return genlmsg_end(msg, hdr);
2850
2851 nla_put_failure:
bc3ed28c
TG		 2852 genlmsg_cancel(msg, hdr);
2853 return -EMSGSIZE;
2ec600d6
LCC		 2854}
2855
2856static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2857 struct netlink_callback *cb)
2ec600d6 2858{
2ec600d6
LCC		 2859 struct mpath_info pinfo;
2860 struct cfg80211_registered_device *dev;
bba95fef 2861 struct net_device *netdev;
2ec600d6
LCC		 2862 u8 dst[ETH_ALEN];
2863 u8 next_hop[ETH_ALEN];
bba95fef 2864 int path_idx = cb->args[1];
2ec600d6 2865 int err;
2ec600d6 2866
67748893
JB		 2867 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2868 if (err)
2869 return err;
bba95fef
JB		 2870
2871 if (!dev->ops->dump_mpath) {
eec60b03 2872 err = -EOPNOTSUPP;
bba95fef
JB		 2873 goto out_err;
2874 }
2875
eec60b03
JM		 2876 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2877 err = -EOPNOTSUPP;
0448b5fc 2878 goto out_err;
eec60b03
JM		 2879 }
2880
bba95fef
JB		 2881 while (1) {
2882 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2883 dst, next_hop, &pinfo);
2884 if (err == -ENOENT)
2ec600d6 2885 break;
bba95fef 2886 if (err)
3b85875a 2887 goto out_err;
2ec600d6 2888
bba95fef
JB		 2889 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2890 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2891 netdev, dst, next_hop,
2892 &pinfo) < 0)
2893 goto out;
2ec600d6 2894
bba95fef 2895 path_idx++;
2ec600d6 2896 }
2ec600d6 2897
2ec600d6 2898
bba95fef
JB		 2899 out:
2900 cb->args[1] = path_idx;
2901 err = skb->len;
bba95fef 2902 out_err:
67748893 2903 nl80211_finish_netdev_dump(dev);
bba95fef 2904 return err;
2ec600d6
LCC		 2905}
2906
2907static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2908{
4c476991 2909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2910 int err;
4c476991 2911 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2912 struct mpath_info pinfo;
2913 struct sk_buff *msg;
2914 u8 *dst = NULL;
2915 u8 next_hop[ETH_ALEN];
2916
2917 memset(&pinfo, 0, sizeof(pinfo));
2918
2919 if (!info->attrs[NL80211_ATTR_MAC])
2920 return -EINVAL;
2921
2922 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2923
4c476991
JB		 2924 if (!rdev->ops->get_mpath)
2925 return -EOPNOTSUPP;
2ec600d6 2926
4c476991
JB		 2927 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2928 return -EOPNOTSUPP;
eec60b03 2929
79c97e97 2930 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2931 if (err)
4c476991 2932 return err;
2ec600d6 2933
fd2120ca 2934 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2935 if (!msg)
4c476991 2936 return -ENOMEM;
2ec600d6
LCC		 2937
2938 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2939 dev, dst, next_hop, &pinfo) < 0) {
2940 nlmsg_free(msg);
2941 return -ENOBUFS;
2942 }
3b85875a 2943
4c476991 2944 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2945}
2946
2947static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2948{
4c476991
JB		 2949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2950 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2951 u8 *dst = NULL;
2952 u8 *next_hop = NULL;
2953
2954 if (!info->attrs[NL80211_ATTR_MAC])
2955 return -EINVAL;
2956
2957 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2958 return -EINVAL;
2959
2960 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2961 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2962
4c476991
JB		 2963 if (!rdev->ops->change_mpath)
2964 return -EOPNOTSUPP;
35a8efe1 2965
4c476991
JB		 2966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2967 return -EOPNOTSUPP;
2ec600d6 2968
4c476991 2969 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2970}
4c476991 2971
2ec600d6
LCC		 2972static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2973{
4c476991
JB		 2974 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2975 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2976 u8 *dst = NULL;
2977 u8 *next_hop = NULL;
2978
2979 if (!info->attrs[NL80211_ATTR_MAC])
2980 return -EINVAL;
2981
2982 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2983 return -EINVAL;
2984
2985 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2986 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2987
4c476991
JB		 2988 if (!rdev->ops->add_mpath)
2989 return -EOPNOTSUPP;
35a8efe1 2990
4c476991
JB		 2991 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2992 return -EOPNOTSUPP;
2ec600d6 2993
4c476991 2994 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2995}
2996
2997static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2998{
4c476991
JB		 2999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3000 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3001 u8 *dst = NULL;
3002
3003 if (info->attrs[NL80211_ATTR_MAC])
3004 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3005
4c476991
JB		 3006 if (!rdev->ops->del_mpath)
3007 return -EOPNOTSUPP;
3b85875a 3008
4c476991 3009 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3010}
3011
9f1ba906
JM		 3012static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3013{
4c476991
JB		 3014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3015 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3016 struct bss_parameters params;
3017
3018 memset(&params, 0, sizeof(params));
3019 /* default to not changing parameters */
3020 params.use_cts_prot = -1;
3021 params.use_short_preamble = -1;
3022 params.use_short_slot_time = -1;
fd8aaaf3 3023 params.ap_isolate = -1;
50b12f59 3024 params.ht_opmode = -1;
9f1ba906
JM		 3025
3026 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3027 params.use_cts_prot =
3028 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3029 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3030 params.use_short_preamble =
3031 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3032 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3033 params.use_short_slot_time =
3034 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3035 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3036 params.basic_rates =
3037 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3038 params.basic_rates_len =
3039 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3040 }
fd8aaaf3
FF		 3041 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3042 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3043 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3044 params.ht_opmode =
3045 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3046
4c476991
JB		 3047 if (!rdev->ops->change_bss)
3048 return -EOPNOTSUPP;
9f1ba906 3049
074ac8df 3050 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3051 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3052 return -EOPNOTSUPP;
3b85875a 3053
4c476991 3054 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3055}
3056
b54452b0 3057static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3058 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3059 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3060 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3061 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3062 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3063 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3064};
3065
3066static int parse_reg_rule(struct nlattr *tb[],
3067 struct ieee80211_reg_rule *reg_rule)
3068{
3069 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3070 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3071
3072 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3073 return -EINVAL;
3074 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3075 return -EINVAL;
3076 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3077 return -EINVAL;
3078 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3079 return -EINVAL;
3080 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3081 return -EINVAL;
3082
3083 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3084
3085 freq_range->start_freq_khz =
3086 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3087 freq_range->end_freq_khz =
3088 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3089 freq_range->max_bandwidth_khz =
3090 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3091
3092 power_rule->max_eirp =
3093 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3094
3095 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3096 power_rule->max_antenna_gain =
3097 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3098
3099 return 0;
3100}
3101
3102static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3103{
3104 int r;
3105 char *data = NULL;
3106
80778f18
LR		 3107 /*
3108 * You should only get this when cfg80211 hasn't yet initialized
3109 * completely when built-in to the kernel right between the time
3110 * window between nl80211_init() and regulatory_init(), if that is
3111 * even possible.
3112 */
3113 mutex_lock(&cfg80211_mutex);
3114 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3115 mutex_unlock(&cfg80211_mutex);
3116 return -EINPROGRESS;
80778f18 3117 }
fe33eb39 3118 mutex_unlock(&cfg80211_mutex);
80778f18 3119
fe33eb39
LR		 3120 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3121 return -EINVAL;
b2e1b302
LR		 3122
3123 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3124
fe33eb39
LR		 3125 r = regulatory_hint_user(data);
3126
b2e1b302
LR		 3127 return r;
3128}
3129
24bdd9f4 3130static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3131 struct genl_info *info)
93da9cc1 3132{
4c476991 3133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3134 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3135 struct wireless_dev *wdev = dev->ieee80211_ptr;
3136 struct mesh_config cur_params;
3137 int err = 0;
93da9cc1 3138 void *hdr;
3139 struct nlattr *pinfoattr;
3140 struct sk_buff *msg;
3141
29cbe68c
JB		 3142 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3143 return -EOPNOTSUPP;
3144
24bdd9f4 3145 if (!rdev->ops->get_mesh_config)
4c476991 3146 return -EOPNOTSUPP;
f3f92586 3147
29cbe68c
JB		 3148 wdev_lock(wdev);
3149 /* If not connected, get default parameters */
3150 if (!wdev->mesh_id_len)
3151 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3152 else
24bdd9f4 3153 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3154 &cur_params);
3155 wdev_unlock(wdev);
3156
93da9cc1 3157 if (err)
4c476991 3158 return err;
93da9cc1 3159
3160 /* Draw up a netlink message to send back */
fd2120ca 3161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3162 if (!msg)
3163 return -ENOMEM;
93da9cc1 3164 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3165 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3166 if (!hdr)
efe1cf0c 3167 goto out;
24bdd9f4 3168 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3169 if (!pinfoattr)
3170 goto nla_put_failure;
3171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3172 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3173 cur_params.dot11MeshRetryTimeout);
3174 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3175 cur_params.dot11MeshConfirmTimeout);
3176 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3177 cur_params.dot11MeshHoldingTimeout);
3178 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3179 cur_params.dot11MeshMaxPeerLinks);
3180 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3181 cur_params.dot11MeshMaxRetries);
3182 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3183 cur_params.dot11MeshTTL);
45904f21
JC		 3184 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3185 cur_params.element_ttl);
93da9cc1 3186 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3187 cur_params.auto_open_plinks);
3188 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3189 cur_params.dot11MeshHWMPmaxPREQretries);
3190 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3191 cur_params.path_refresh_time);
3192 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3193 cur_params.min_discovery_timeout);
3194 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3195 cur_params.dot11MeshHWMPactivePathTimeout);
3196 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3197 cur_params.dot11MeshHWMPpreqMinInterval);
3198 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3199 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3200 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3201 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3202 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3203 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3204 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3205 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3206 nla_nest_end(msg, pinfoattr);
3207 genlmsg_end(msg, hdr);
4c476991 3208 return genlmsg_reply(msg, info);
93da9cc1 3209
3b85875a 3210 nla_put_failure:
93da9cc1 3211 genlmsg_cancel(msg, hdr);
efe1cf0c 3212 out:
d080e275 3213 nlmsg_free(msg);
4c476991 3214 return -ENOBUFS;
93da9cc1 3215}
3216
b54452b0 3217static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3218 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3219 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3220 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3221 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3222 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3223 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3224 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3225 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3226
3227 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3228 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3229 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3230 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3231 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3232 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3233 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3234 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3235 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3236};
3237
c80d545d
JC		 3238static const struct nla_policy
3239 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3240 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3241 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3242 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3243 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3244 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3245 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3246};
3247
24bdd9f4 3248static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3249 struct mesh_config *cfg,
3250 u32 *mask_out)
93da9cc1 3251{
93da9cc1 3252 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3253 u32 mask = 0;
93da9cc1 3254
bd90fdcc
JB		 3255#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3256do {\
3257 if (table[attr_num]) {\
3258 cfg->param = nla_fn(table[attr_num]); \
3259 mask |= (1 << (attr_num - 1)); \
3260 } \
3261} while (0);\
3262
3263
24bdd9f4 3264 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3265 return -EINVAL;
3266 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3267 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3268 nl80211_meshconf_params_policy))
93da9cc1 3269 return -EINVAL;
3270
93da9cc1 3271 /* This makes sure that there aren't more than 32 mesh config
3272 * parameters (otherwise our bitfield scheme would not work.) */
3273 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3274
3275 /* Fill in the params struct */
93da9cc1 3276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3277 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3279 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3281 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3282 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3283 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3285 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3287 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3289 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3290 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3291 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3292 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3293 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3294 nla_get_u8);
3295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3296 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3297 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3298 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3299 nla_get_u16);
3300 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3301 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3302 nla_get_u32);
3303 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3304 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3305 nla_get_u16);
3306 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3307 dot11MeshHWMPnetDiameterTraversalTime,
3308 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3309 nla_get_u16);
63c5723b
RP		 3310 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3311 dot11MeshHWMPRootMode, mask,
3312 NL80211_MESHCONF_HWMP_ROOTMODE,
3313 nla_get_u8);
0507e159
JC		 3314 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3315 dot11MeshHWMPRannInterval, mask,
3316 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3317 nla_get_u16);
16dd7267
JC		 3318 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3319 dot11MeshGateAnnouncementProtocol, mask,
3320 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3321 nla_get_u8);
bd90fdcc
JB		 3322 if (mask_out)
3323 *mask_out = mask;
c80d545d 3324
bd90fdcc
JB		 3325 return 0;
3326
3327#undef FILL_IN_MESH_PARAM_IF_SET
3328}
3329
c80d545d
JC		 3330static int nl80211_parse_mesh_setup(struct genl_info *info,
3331 struct mesh_setup *setup)
3332{
3333 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3334
3335 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3336 return -EINVAL;
3337 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3338 info->attrs[NL80211_ATTR_MESH_SETUP],
3339 nl80211_mesh_setup_params_policy))
3340 return -EINVAL;
3341
3342 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3343 setup->path_sel_proto =
3344 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3345 IEEE80211_PATH_PROTOCOL_VENDOR :
3346 IEEE80211_PATH_PROTOCOL_HWMP;
3347
3348 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3349 setup->path_metric =
3350 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3351 IEEE80211_PATH_METRIC_VENDOR :
3352 IEEE80211_PATH_METRIC_AIRTIME;
3353
581a8b0f
JC		 3354
3355 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3356 struct nlattr *ieattr =
581a8b0f 3357 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3358 if (!is_valid_ie_attr(ieattr))
3359 return -EINVAL;
581a8b0f
JC		 3360 setup->ie = nla_data(ieattr);
3361 setup->ie_len = nla_len(ieattr);
c80d545d 3362 }
b130e5ce
JC		 3363 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3364 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3365
3366 return 0;
3367}
3368
24bdd9f4 3369static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3370 struct genl_info *info)
bd90fdcc
JB		 3371{
3372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3373 struct net_device *dev = info->user_ptr[1];
29cbe68c 3374 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3375 struct mesh_config cfg;
3376 u32 mask;
3377 int err;
3378
29cbe68c
JB		 3379 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3380 return -EOPNOTSUPP;
3381
24bdd9f4 3382 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3383 return -EOPNOTSUPP;
3384
24bdd9f4 3385 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3386 if (err)
3387 return err;
3388
29cbe68c
JB		 3389 wdev_lock(wdev);
3390 if (!wdev->mesh_id_len)
3391 err = -ENOLINK;
3392
3393 if (!err)
24bdd9f4 3394 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3395 mask, &cfg);
3396
3397 wdev_unlock(wdev);
3398
3399 return err;
93da9cc1 3400}
3401
f130347c
LR		 3402static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3403{
3404 struct sk_buff *msg;
3405 void *hdr = NULL;
3406 struct nlattr *nl_reg_rules;
3407 unsigned int i;
3408 int err = -EINVAL;
3409
a1794390 3410 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3411
3412 if (!cfg80211_regdomain)
3413 goto out;
3414
fd2120ca 3415 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3416 if (!msg) {
3417 err = -ENOBUFS;
3418 goto out;
3419 }
3420
3421 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3422 NL80211_CMD_GET_REG);
3423 if (!hdr)
efe1cf0c 3424 goto put_failure;
f130347c
LR		 3425
3426 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3427 cfg80211_regdomain->alpha2);
8b60b078
LR		 3428 if (cfg80211_regdomain->dfs_region)
3429 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3430 cfg80211_regdomain->dfs_region);
f130347c
LR		 3431
3432 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3433 if (!nl_reg_rules)
3434 goto nla_put_failure;
3435
3436 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3437 struct nlattr *nl_reg_rule;
3438 const struct ieee80211_reg_rule *reg_rule;
3439 const struct ieee80211_freq_range *freq_range;
3440 const struct ieee80211_power_rule *power_rule;
3441
3442 reg_rule = &cfg80211_regdomain->reg_rules[i];
3443 freq_range = &reg_rule->freq_range;
3444 power_rule = &reg_rule->power_rule;
3445
3446 nl_reg_rule = nla_nest_start(msg, i);
3447 if (!nl_reg_rule)
3448 goto nla_put_failure;
3449
3450 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3451 reg_rule->flags);
3452 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3453 freq_range->start_freq_khz);
3454 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3455 freq_range->end_freq_khz);
3456 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3457 freq_range->max_bandwidth_khz);
3458 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3459 power_rule->max_antenna_gain);
3460 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3461 power_rule->max_eirp);
3462
3463 nla_nest_end(msg, nl_reg_rule);
3464 }
3465
3466 nla_nest_end(msg, nl_reg_rules);
3467
3468 genlmsg_end(msg, hdr);
134e6375 3469 err = genlmsg_reply(msg, info);
f130347c
LR		 3470 goto out;
3471
3472nla_put_failure:
3473 genlmsg_cancel(msg, hdr);
efe1cf0c 3474put_failure:
d080e275 3475 nlmsg_free(msg);
f130347c
LR		 3476 err = -EMSGSIZE;
3477out:
a1794390 3478 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3479 return err;
3480}
3481
b2e1b302
LR		 3482static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3483{
3484 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3485 struct nlattr *nl_reg_rule;
3486 char *alpha2 = NULL;
3487 int rem_reg_rules = 0, r = 0;
3488 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3489 u8 dfs_region = 0;
b2e1b302
LR		 3490 struct ieee80211_regdomain *rd = NULL;
3491
3492 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3493 return -EINVAL;
3494
3495 if (!info->attrs[NL80211_ATTR_REG_RULES])
3496 return -EINVAL;
3497
3498 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3499
8b60b078
LR		 3500 if (info->attrs[NL80211_ATTR_DFS_REGION])
3501 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3502
b2e1b302
LR		 3503 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3504 rem_reg_rules) {
3505 num_rules++;
3506 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3507 return -EINVAL;
b2e1b302
LR		 3508 }
3509
61405e97
LR		 3510 mutex_lock(&cfg80211_mutex);
3511
d0e18f83
LR		 3512 if (!reg_is_valid_request(alpha2)) {
3513 r = -EINVAL;
3514 goto bad_reg;
3515 }
b2e1b302
LR		 3516
3517 size_of_regd = sizeof(struct ieee80211_regdomain) +
3518 (num_rules * sizeof(struct ieee80211_reg_rule));
3519
3520 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3521 if (!rd) {
3522 r = -ENOMEM;
3523 goto bad_reg;
3524 }
b2e1b302
LR		 3525
3526 rd->n_reg_rules = num_rules;
3527 rd->alpha2[0] = alpha2[0];
3528 rd->alpha2[1] = alpha2[1];
3529
8b60b078
LR		 3530 /*
3531 * Disable DFS master mode if the DFS region was
3532 * not supported or known on this kernel.
3533 */
3534 if (reg_supported_dfs_region(dfs_region))
3535 rd->dfs_region = dfs_region;
3536
b2e1b302
LR		 3537 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3538 rem_reg_rules) {
3539 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3540 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3541 reg_rule_policy);
3542 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3543 if (r)
3544 goto bad_reg;
3545
3546 rule_idx++;
3547
d0e18f83
LR		 3548 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3549 r = -EINVAL;
b2e1b302 3550 goto bad_reg;
d0e18f83 3551 }
b2e1b302
LR		 3552 }
3553
3554 BUG_ON(rule_idx != num_rules);
3555
b2e1b302 3556 r = set_regdom(rd);
61405e97 3557
a1794390 3558 mutex_unlock(&cfg80211_mutex);
d0e18f83 3559
b2e1b302
LR		 3560 return r;
3561
d2372b31 3562 bad_reg:
61405e97 3563 mutex_unlock(&cfg80211_mutex);
b2e1b302 3564 kfree(rd);
d0e18f83 3565 return r;
b2e1b302
LR		 3566}
3567
83f5e2cf
JB		 3568static int validate_scan_freqs(struct nlattr *freqs)
3569{
3570 struct nlattr *attr1, *attr2;
3571 int n_channels = 0, tmp1, tmp2;
3572
3573 nla_for_each_nested(attr1, freqs, tmp1) {
3574 n_channels++;
3575 /*
3576 * Some hardware has a limited channel list for
3577 * scanning, and it is pretty much nonsensical
3578 * to scan for a channel twice, so disallow that
3579 * and don't require drivers to check that the
3580 * channel list they get isn't longer than what
3581 * they can scan, as long as they can scan all
3582 * the channels they registered at once.
3583 */
3584 nla_for_each_nested(attr2, freqs, tmp2)
3585 if (attr1 != attr2 &&
3586 nla_get_u32(attr1) == nla_get_u32(attr2))
3587 return 0;
3588 }
3589
3590 return n_channels;
3591}
3592
2a519311
JB		 3593static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3594{
4c476991
JB		 3595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3596 struct net_device *dev = info->user_ptr[1];
2a519311 3597 struct cfg80211_scan_request *request;
2a519311
JB		 3598 struct nlattr *attr;
3599 struct wiphy *wiphy;
83f5e2cf 3600 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3601 size_t ie_len;
2a519311 3602
f4a11bb0
JB		 3603 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3604 return -EINVAL;
3605
79c97e97 3606 wiphy = &rdev->wiphy;
2a519311 3607
4c476991
JB		 3608 if (!rdev->ops->scan)
3609 return -EOPNOTSUPP;
2a519311 3610
4c476991
JB		 3611 if (rdev->scan_req)
3612 return -EBUSY;
2a519311
JB		 3613
3614 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3615 n_channels = validate_scan_freqs(
3616 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3617 if (!n_channels)
3618 return -EINVAL;
2a519311 3619 } else {
34850ab2 3620 enum ieee80211_band band;
83f5e2cf
JB		 3621 n_channels = 0;
3622
2a519311
JB		 3623 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3624 if (wiphy->bands[band])
3625 n_channels += wiphy->bands[band]->n_channels;
3626 }
3627
3628 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3629 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3630 n_ssids++;
3631
4c476991
JB		 3632 if (n_ssids > wiphy->max_scan_ssids)
3633 return -EINVAL;
2a519311 3634
70692ad2
JM		 3635 if (info->attrs[NL80211_ATTR_IE])
3636 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3637 else
3638 ie_len = 0;
3639
4c476991
JB		 3640 if (ie_len > wiphy->max_scan_ie_len)
3641 return -EINVAL;
18a83659 3642
2a519311 3643 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3644 + sizeof(*request->ssids) * n_ssids
3645 + sizeof(*request->channels) * n_channels
70692ad2 3646 + ie_len, GFP_KERNEL);
4c476991
JB		 3647 if (!request)
3648 return -ENOMEM;
2a519311 3649
2a519311 3650 if (n_ssids)
5ba63533 3651 request->ssids = (void *)&request->channels[n_channels];
2a519311 3652 request->n_ssids = n_ssids;
70692ad2
JM		 3653 if (ie_len) {
3654 if (request->ssids)
3655 request->ie = (void *)(request->ssids + n_ssids);
3656 else
3657 request->ie = (void *)(request->channels + n_channels);
3658 }
2a519311 3659
584991dc 3660 i = 0;
2a519311
JB		 3661 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3662 /* user specified, bail out if channel not found */
2a519311 3663 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3664 struct ieee80211_channel *chan;
3665
3666 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3667
3668 if (!chan) {
2a519311
JB		 3669 err = -EINVAL;
3670 goto out_free;
3671 }
584991dc
JB		 3672
3673 /* ignore disabled channels */
3674 if (chan->flags & IEEE80211_CHAN_DISABLED)
3675 continue;
3676
3677 request->channels[i] = chan;
2a519311
JB		 3678 i++;
3679 }
3680 } else {
34850ab2
JB		 3681 enum ieee80211_band band;
3682
2a519311 3683 /* all channels */
2a519311
JB		 3684 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3685 int j;
3686 if (!wiphy->bands[band])
3687 continue;
3688 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3689 struct ieee80211_channel *chan;
3690
3691 chan = &wiphy->bands[band]->channels[j];
3692
3693 if (chan->flags & IEEE80211_CHAN_DISABLED)
3694 continue;
3695
3696 request->channels[i] = chan;
2a519311
JB		 3697 i++;
3698 }
3699 }
3700 }
3701
584991dc
JB		 3702 if (!i) {
3703 err = -EINVAL;
3704 goto out_free;
3705 }
3706
3707 request->n_channels = i;
3708
2a519311
JB		 3709 i = 0;
3710 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3711 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3712 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3713 err = -EINVAL;
3714 goto out_free;
3715 }
57a27e1d 3716 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3717 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3718 i++;
3719 }
3720 }
3721
70692ad2
JM		 3722 if (info->attrs[NL80211_ATTR_IE]) {
3723 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3724 memcpy((void *)request->ie,
3725 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3726 request->ie_len);
3727 }
3728
34850ab2 3729 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3730 if (wiphy->bands[i])
3731 request->rates[i] =
3732 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3733
3734 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3735 nla_for_each_nested(attr,
3736 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3737 tmp) {
3738 enum ieee80211_band band = nla_type(attr);
3739
84404623 3740 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3741 err = -EINVAL;
3742 goto out_free;
3743 }
3744 err = ieee80211_get_ratemask(wiphy->bands[band],
3745 nla_data(attr),
3746 nla_len(attr),
3747 &request->rates[band]);
3748 if (err)
3749 goto out_free;
3750 }
3751 }
3752
e9f935e3
RM		 3753 request->no_cck =
3754 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3755
463d0183 3756 request->dev = dev;
79c97e97 3757 request->wiphy = &rdev->wiphy;
2a519311 3758
79c97e97
JB		 3759 rdev->scan_req = request;
3760 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3761
463d0183 3762 if (!err) {
79c97e97 3763 nl80211_send_scan_start(rdev, dev);
463d0183 3764 dev_hold(dev);
4c476991 3765 } else {
2a519311 3766 out_free:
79c97e97 3767 rdev->scan_req = NULL;
2a519311
JB		 3768 kfree(request);
3769 }
3b85875a 3770
2a519311
JB		 3771 return err;
3772}
3773
807f8a8c
LC		 3774static int nl80211_start_sched_scan(struct sk_buff *skb,
3775 struct genl_info *info)
3776{
3777 struct cfg80211_sched_scan_request *request;
3778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3779 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3780 struct nlattr *attr;
3781 struct wiphy *wiphy;
a1f1c21c 3782 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3783 u32 interval;
807f8a8c
LC		 3784 enum ieee80211_band band;
3785 size_t ie_len;
a1f1c21c 3786 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3787
3788 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3789 !rdev->ops->sched_scan_start)
3790 return -EOPNOTSUPP;
3791
3792 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3793 return -EINVAL;
3794
bbe6ad6d
LC		 3795 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3796 return -EINVAL;
3797
3798 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3799 if (interval == 0)
3800 return -EINVAL;
3801
807f8a8c
LC		 3802 wiphy = &rdev->wiphy;
3803
3804 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3805 n_channels = validate_scan_freqs(
3806 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3807 if (!n_channels)
3808 return -EINVAL;
3809 } else {
3810 n_channels = 0;
3811
3812 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3813 if (wiphy->bands[band])
3814 n_channels += wiphy->bands[band]->n_channels;
3815 }
3816
3817 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3818 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3819 tmp)
3820 n_ssids++;
3821
93b6aa69 3822 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3823 return -EINVAL;
3824
a1f1c21c
LC		 3825 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3826 nla_for_each_nested(attr,
3827 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3828 tmp)
3829 n_match_sets++;
3830
3831 if (n_match_sets > wiphy->max_match_sets)
3832 return -EINVAL;
3833
807f8a8c
LC		 3834 if (info->attrs[NL80211_ATTR_IE])
3835 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3836 else
3837 ie_len = 0;
3838
5a865bad 3839 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3840 return -EINVAL;
3841
c10841ca
LC		 3842 mutex_lock(&rdev->sched_scan_mtx);
3843
3844 if (rdev->sched_scan_req) {
3845 err = -EINPROGRESS;
3846 goto out;
3847 }
3848
807f8a8c 3849 request = kzalloc(sizeof(*request)
a2cd43c5 3850 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3851 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3852 + sizeof(*request->channels) * n_channels
807f8a8c 3853 + ie_len, GFP_KERNEL);
c10841ca
LC		 3854 if (!request) {
3855 err = -ENOMEM;
3856 goto out;
3857 }
807f8a8c
LC		 3858
3859 if (n_ssids)
3860 request->ssids = (void *)&request->channels[n_channels];
3861 request->n_ssids = n_ssids;
3862 if (ie_len) {
3863 if (request->ssids)
3864 request->ie = (void *)(request->ssids + n_ssids);
3865 else
3866 request->ie = (void *)(request->channels + n_channels);
3867 }
3868
a1f1c21c
LC		 3869 if (n_match_sets) {
3870 if (request->ie)
3871 request->match_sets = (void *)(request->ie + ie_len);
3872 else if (request->ssids)
3873 request->match_sets =
3874 (void *)(request->ssids + n_ssids);
3875 else
3876 request->match_sets =
3877 (void *)(request->channels + n_channels);
3878 }
3879 request->n_match_sets = n_match_sets;
3880
807f8a8c
LC		 3881 i = 0;
3882 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3883 /* user specified, bail out if channel not found */
3884 nla_for_each_nested(attr,
3885 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3886 tmp) {
3887 struct ieee80211_channel *chan;
3888
3889 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3890
3891 if (!chan) {
3892 err = -EINVAL;
3893 goto out_free;
3894 }
3895
3896 /* ignore disabled channels */
3897 if (chan->flags & IEEE80211_CHAN_DISABLED)
3898 continue;
3899
3900 request->channels[i] = chan;
3901 i++;
3902 }
3903 } else {
3904 /* all channels */
3905 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3906 int j;
3907 if (!wiphy->bands[band])
3908 continue;
3909 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3910 struct ieee80211_channel *chan;
3911
3912 chan = &wiphy->bands[band]->channels[j];
3913
3914 if (chan->flags & IEEE80211_CHAN_DISABLED)
3915 continue;
3916
3917 request->channels[i] = chan;
3918 i++;
3919 }
3920 }
3921 }
3922
3923 if (!i) {
3924 err = -EINVAL;
3925 goto out_free;
3926 }
3927
3928 request->n_channels = i;
3929
3930 i = 0;
3931 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3932 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3933 tmp) {
57a27e1d 3934 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3935 err = -EINVAL;
3936 goto out_free;
3937 }
57a27e1d 3938 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3939 memcpy(request->ssids[i].ssid, nla_data(attr),
3940 nla_len(attr));
807f8a8c
LC		 3941 i++;
3942 }
3943 }
3944
a1f1c21c
LC		 3945 i = 0;
3946 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3947 nla_for_each_nested(attr,
3948 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3949 tmp) {
3950 struct nlattr *ssid;
3951
3952 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3953 nla_data(attr), nla_len(attr),
3954 nl80211_match_policy);
3955 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3956 if (ssid) {
3957 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3958 err = -EINVAL;
3959 goto out_free;
3960 }
3961 memcpy(request->match_sets[i].ssid.ssid,
3962 nla_data(ssid), nla_len(ssid));
3963 request->match_sets[i].ssid.ssid_len =
3964 nla_len(ssid);
3965 }
3966 i++;
3967 }
3968 }
3969
807f8a8c
LC		 3970 if (info->attrs[NL80211_ATTR_IE]) {
3971 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3972 memcpy((void *)request->ie,
3973 nla_data(info->attrs[NL80211_ATTR_IE]),
3974 request->ie_len);
3975 }
3976
3977 request->dev = dev;
3978 request->wiphy = &rdev->wiphy;
bbe6ad6d 3979 request->interval = interval;
807f8a8c
LC		 3980
3981 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3982 if (!err) {
3983 rdev->sched_scan_req = request;
3984 nl80211_send_sched_scan(rdev, dev,
3985 NL80211_CMD_START_SCHED_SCAN);
3986 goto out;
3987 }
3988
3989out_free:
3990 kfree(request);
3991out:
c10841ca 3992 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3993 return err;
3994}
3995
3996static int nl80211_stop_sched_scan(struct sk_buff *skb,
3997 struct genl_info *info)
3998{
3999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4000 int err;
807f8a8c
LC		 4001
4002 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4003 !rdev->ops->sched_scan_stop)
4004 return -EOPNOTSUPP;
4005
c10841ca
LC		 4006 mutex_lock(&rdev->sched_scan_mtx);
4007 err = __cfg80211_stop_sched_scan(rdev, false);
4008 mutex_unlock(&rdev->sched_scan_mtx);
4009
4010 return err;
807f8a8c
LC		 4011}
4012
9720bb3a
JB		 4013static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4014 u32 seq, int flags,
2a519311 4015 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4016 struct wireless_dev *wdev,
4017 struct cfg80211_internal_bss *intbss)
2a519311 4018{
48ab905d 4019 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4020 void *hdr;
4021 struct nlattr *bss;
48ab905d
JB		 4022 int i;
4023
4024 ASSERT_WDEV_LOCK(wdev);
2a519311 4025
9720bb3a 4026 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4027 NL80211_CMD_NEW_SCAN_RESULTS);
4028 if (!hdr)
4029 return -1;
4030
9720bb3a
JB		 4031 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4032
f5ea9120 4033 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4034 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4035
4036 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4037 if (!bss)
4038 goto nla_put_failure;
4039 if (!is_zero_ether_addr(res->bssid))
4040 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4041 if (res->information_elements && res->len_information_elements)
4042 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4043 res->len_information_elements,
4044 res->information_elements);
34a6eddb
JM		 4045 if (res->beacon_ies && res->len_beacon_ies &&
4046 res->beacon_ies != res->information_elements)
4047 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4048 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4049 if (res->tsf)
4050 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4051 if (res->beacon_interval)
4052 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4053 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4054 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4055 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4056 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4057
77965c97 4058 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4059 case CFG80211_SIGNAL_TYPE_MBM:
4060 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4061 break;
4062 case CFG80211_SIGNAL_TYPE_UNSPEC:
4063 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4064 break;
4065 default:
4066 break;
4067 }
4068
48ab905d 4069 switch (wdev->iftype) {
074ac8df 4070 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4071 case NL80211_IFTYPE_STATION:
4072 if (intbss == wdev->current_bss)
4073 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4074 NL80211_BSS_STATUS_ASSOCIATED);
4075 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4076 if (intbss != wdev->auth_bsses[i])
4077 continue;
4078 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4079 NL80211_BSS_STATUS_AUTHENTICATED);
4080 break;
4081 }
4082 break;
4083 case NL80211_IFTYPE_ADHOC:
4084 if (intbss == wdev->current_bss)
4085 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4086 NL80211_BSS_STATUS_IBSS_JOINED);
4087 break;
4088 default:
4089 break;
4090 }
4091
2a519311
JB		 4092 nla_nest_end(msg, bss);
4093
4094 return genlmsg_end(msg, hdr);
4095
4096 nla_put_failure:
4097 genlmsg_cancel(msg, hdr);
4098 return -EMSGSIZE;
4099}
4100
4101static int nl80211_dump_scan(struct sk_buff *skb,
4102 struct netlink_callback *cb)
4103{
48ab905d
JB		 4104 struct cfg80211_registered_device *rdev;
4105 struct net_device *dev;
2a519311 4106 struct cfg80211_internal_bss *scan;
48ab905d 4107 struct wireless_dev *wdev;
2a519311
JB		 4108 int start = cb->args[1], idx = 0;
4109 int err;
4110
67748893
JB		 4111 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4112 if (err)
4113 return err;
2a519311 4114
48ab905d 4115 wdev = dev->ieee80211_ptr;
2a519311 4116
48ab905d
JB		 4117 wdev_lock(wdev);
4118 spin_lock_bh(&rdev->bss_lock);
4119 cfg80211_bss_expire(rdev);
4120
9720bb3a
JB		 4121 cb->seq = rdev->bss_generation;
4122
48ab905d 4123 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4124 if (++idx <= start)
4125 continue;
9720bb3a 4126 if (nl80211_send_bss(skb, cb,
2a519311 4127 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4128 rdev, wdev, scan) < 0) {
2a519311 4129 idx--;
67748893 4130 break;
2a519311
JB		 4131 }
4132 }
4133
48ab905d
JB		 4134 spin_unlock_bh(&rdev->bss_lock);
4135 wdev_unlock(wdev);
2a519311
JB		 4136
4137 cb->args[1] = idx;
67748893 4138 nl80211_finish_netdev_dump(rdev);
2a519311 4139
67748893 4140 return skb->len;
2a519311
JB		 4141}
4142
61fa713c
HS		 4143static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4144 int flags, struct net_device *dev,
4145 struct survey_info *survey)
4146{
4147 void *hdr;
4148 struct nlattr *infoattr;
4149
61fa713c
HS		 4150 hdr = nl80211hdr_put(msg, pid, seq, flags,
4151 NL80211_CMD_NEW_SURVEY_RESULTS);
4152 if (!hdr)
4153 return -ENOMEM;
4154
4155 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4156
4157 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4158 if (!infoattr)
4159 goto nla_put_failure;
4160
4161 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4162 survey->channel->center_freq);
4163 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4164 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4165 survey->noise);
17e5a808
FF		 4166 if (survey->filled & SURVEY_INFO_IN_USE)
4167 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4168 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4169 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4170 survey->channel_time);
4171 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4172 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4173 survey->channel_time_busy);
4174 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4175 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4176 survey->channel_time_ext_busy);
4177 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4178 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4179 survey->channel_time_rx);
4180 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4181 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4182 survey->channel_time_tx);
61fa713c
HS		 4183
4184 nla_nest_end(msg, infoattr);
4185
4186 return genlmsg_end(msg, hdr);
4187
4188 nla_put_failure:
4189 genlmsg_cancel(msg, hdr);
4190 return -EMSGSIZE;
4191}
4192
4193static int nl80211_dump_survey(struct sk_buff *skb,
4194 struct netlink_callback *cb)
4195{
4196 struct survey_info survey;
4197 struct cfg80211_registered_device *dev;
4198 struct net_device *netdev;
61fa713c
HS		 4199 int survey_idx = cb->args[1];
4200 int res;
4201
67748893
JB		 4202 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4203 if (res)
4204 return res;
61fa713c
HS		 4205
4206 if (!dev->ops->dump_survey) {
4207 res = -EOPNOTSUPP;
4208 goto out_err;
4209 }
4210
4211 while (1) {
180cdc79
LR		 4212 struct ieee80211_channel *chan;
4213
61fa713c
HS		 4214 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4215 &survey);
4216 if (res == -ENOENT)
4217 break;
4218 if (res)
4219 goto out_err;
4220
180cdc79
LR		 4221 /* Survey without a channel doesn't make sense */
4222 if (!survey.channel) {
4223 res = -EINVAL;
4224 goto out;
4225 }
4226
4227 chan = ieee80211_get_channel(&dev->wiphy,
4228 survey.channel->center_freq);
4229 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4230 survey_idx++;
4231 continue;
4232 }
4233
61fa713c
HS		 4234 if (nl80211_send_survey(skb,
4235 NETLINK_CB(cb->skb).pid,
4236 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4237 netdev,
4238 &survey) < 0)
4239 goto out;
4240 survey_idx++;
4241 }
4242
4243 out:
4244 cb->args[1] = survey_idx;
4245 res = skb->len;
4246 out_err:
67748893 4247 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4248 return res;
4249}
4250
255e737e
JM		 4251static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4252{
b23aa676
SO		 4253 return auth_type <= NL80211_AUTHTYPE_MAX;
4254}
4255
4256static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4257{
4258 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4259 NL80211_WPA_VERSION_2));
4260}
4261
636a5d36
JM		 4262static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4263{
4c476991
JB		 4264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4265 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4266 struct ieee80211_channel *chan;
4267 const u8 *bssid, *ssid, *ie = NULL;
4268 int err, ssid_len, ie_len = 0;
4269 enum nl80211_auth_type auth_type;
fffd0934 4270 struct key_parse key;
d5cdfacb 4271 bool local_state_change;
636a5d36 4272
f4a11bb0
JB		 4273 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4274 return -EINVAL;
4275
4276 if (!info->attrs[NL80211_ATTR_MAC])
4277 return -EINVAL;
4278
1778092e
JM		 4279 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4280 return -EINVAL;
4281
19957bb3
JB		 4282 if (!info->attrs[NL80211_ATTR_SSID])
4283 return -EINVAL;
4284
4285 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4286 return -EINVAL;
4287
fffd0934
JB		 4288 err = nl80211_parse_key(info, &key);
4289 if (err)
4290 return err;
4291
4292 if (key.idx >= 0) {
e31b8213
JB		 4293 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4294 return -EINVAL;
fffd0934
JB		 4295 if (!key.p.key || !key.p.key_len)
4296 return -EINVAL;
4297 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4298 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4299 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4300 key.p.key_len != WLAN_KEY_LEN_WEP104))
4301 return -EINVAL;
4302 if (key.idx > 4)
4303 return -EINVAL;
4304 } else {
4305 key.p.key_len = 0;
4306 key.p.key = NULL;
4307 }
4308
afea0b7a
JB		 4309 if (key.idx >= 0) {
4310 int i;
4311 bool ok = false;
4312 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4313 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4314 ok = true;
4315 break;
4316 }
4317 }
4c476991
JB		 4318 if (!ok)
4319 return -EINVAL;
afea0b7a
JB		 4320 }
4321
4c476991
JB		 4322 if (!rdev->ops->auth)
4323 return -EOPNOTSUPP;
636a5d36 4324
074ac8df 4325 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4326 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4327 return -EOPNOTSUPP;
eec60b03 4328
19957bb3 4329 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4330 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4331 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4332 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4333 return -EINVAL;
636a5d36 4334
19957bb3
JB		 4335 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4336 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4337
4338 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4339 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4340 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4341 }
4342
19957bb3 4343 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4344 if (!nl80211_valid_auth_type(auth_type))
4345 return -EINVAL;
636a5d36 4346
d5cdfacb
JM		 4347 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4348
4c476991
JB		 4349 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4350 ssid, ssid_len, ie, ie_len,
4351 key.p.key, key.p.key_len, key.idx,
4352 local_state_change);
636a5d36
JM		 4353}
4354
c0692b8f
JB		 4355static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4356 struct genl_info *info,
3dc27d25
JB		 4357 struct cfg80211_crypto_settings *settings,
4358 int cipher_limit)
b23aa676 4359{
c0b2bbd8
JB		 4360 memset(settings, 0, sizeof(*settings));
4361
b23aa676
SO		 4362 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4363
c0692b8f
JB		 4364 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4365 u16 proto;
4366 proto = nla_get_u16(
4367 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4368 settings->control_port_ethertype = cpu_to_be16(proto);
4369 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4370 proto != ETH_P_PAE)
4371 return -EINVAL;
4372 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4373 settings->control_port_no_encrypt = true;
4374 } else
4375 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4376
b23aa676
SO		 4377 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4378 void *data;
4379 int len, i;
4380
4381 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4382 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4383 settings->n_ciphers_pairwise = len / sizeof(u32);
4384
4385 if (len % sizeof(u32))
4386 return -EINVAL;
4387
3dc27d25 4388 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4389 return -EINVAL;
4390
4391 memcpy(settings->ciphers_pairwise, data, len);
4392
4393 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4394 if (!cfg80211_supported_cipher_suite(
4395 &rdev->wiphy,
b23aa676
SO		 4396 settings->ciphers_pairwise[i]))
4397 return -EINVAL;
4398 }
4399
4400 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4401 settings->cipher_group =
4402 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4403 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4404 settings->cipher_group))
b23aa676
SO		 4405 return -EINVAL;
4406 }
4407
4408 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4409 settings->wpa_versions =
4410 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4411 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4412 return -EINVAL;
4413 }
4414
4415 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4416 void *data;
6d30240e 4417 int len;
b23aa676
SO		 4418
4419 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4420 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4421 settings->n_akm_suites = len / sizeof(u32);
4422
4423 if (len % sizeof(u32))
4424 return -EINVAL;
4425
1b9ca027
JM		 4426 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4427 return -EINVAL;
4428
b23aa676 4429 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4430 }
4431
4432 return 0;
4433}
4434
636a5d36
JM		 4435static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4436{
4c476991
JB		 4437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4438 struct net_device *dev = info->user_ptr[1];
19957bb3 4439 struct cfg80211_crypto_settings crypto;
f444de05 4440 struct ieee80211_channel *chan;
3e5d7649 4441 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4442 int err, ssid_len, ie_len = 0;
4443 bool use_mfp = false;
7e7c8926
BG		 4444 u32 flags = 0;
4445 struct ieee80211_ht_cap *ht_capa = NULL;
4446 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4447
f4a11bb0
JB		 4448 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4449 return -EINVAL;
4450
4451 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4452 !info->attrs[NL80211_ATTR_SSID] ||
4453 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4454 return -EINVAL;
4455
4c476991
JB		 4456 if (!rdev->ops->assoc)
4457 return -EOPNOTSUPP;
636a5d36 4458
074ac8df 4459 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4460 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4461 return -EOPNOTSUPP;
eec60b03 4462
19957bb3 4463 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4464
19957bb3
JB		 4465 chan = ieee80211_get_channel(&rdev->wiphy,
4466 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4467 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4468 return -EINVAL;
636a5d36 4469
19957bb3
JB		 4470 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4471 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4472
4473 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4474 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4475 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4476 }
4477
dc6382ce 4478 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4479 enum nl80211_mfp mfp =
dc6382ce 4480 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4481 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4482 use_mfp = true;
4c476991
JB		 4483 else if (mfp != NL80211_MFP_NO)
4484 return -EINVAL;
dc6382ce
JM		 4485 }
4486
3e5d7649
JB		 4487 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4488 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4489
7e7c8926
BG		 4490 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4491 flags |= ASSOC_REQ_DISABLE_HT;
4492
4493 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4494 ht_capa_mask =
4495 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4496
4497 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4498 if (!ht_capa_mask)
4499 return -EINVAL;
4500 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4501 }
4502
c0692b8f 4503 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4504 if (!err)
3e5d7649
JB		 4505 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4506 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4507 &crypto, flags, ht_capa,
4508 ht_capa_mask);
636a5d36 4509
636a5d36
JM		 4510 return err;
4511}
4512
4513static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4514{
4c476991
JB		 4515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4516 struct net_device *dev = info->user_ptr[1];
19957bb3 4517 const u8 *ie = NULL, *bssid;
4c476991 4518 int ie_len = 0;
19957bb3 4519 u16 reason_code;
d5cdfacb 4520 bool local_state_change;
636a5d36 4521
f4a11bb0
JB		 4522 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4523 return -EINVAL;
4524
4525 if (!info->attrs[NL80211_ATTR_MAC])
4526 return -EINVAL;
4527
4528 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4529 return -EINVAL;
4530
4c476991
JB		 4531 if (!rdev->ops->deauth)
4532 return -EOPNOTSUPP;
636a5d36 4533
074ac8df 4534 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4535 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4536 return -EOPNOTSUPP;
eec60b03 4537
19957bb3 4538 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4539
19957bb3
JB		 4540 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4541 if (reason_code == 0) {
f4a11bb0 4542 /* Reason Code 0 is reserved */
4c476991 4543 return -EINVAL;
255e737e 4544 }
636a5d36
JM		 4545
4546 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4547 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4548 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4549 }
4550
d5cdfacb
JM		 4551 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4552
4c476991
JB		 4553 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4554 local_state_change);
636a5d36
JM		 4555}
4556
4557static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4558{
4c476991
JB		 4559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4560 struct net_device *dev = info->user_ptr[1];
19957bb3 4561 const u8 *ie = NULL, *bssid;
4c476991 4562 int ie_len = 0;
19957bb3 4563 u16 reason_code;
d5cdfacb 4564 bool local_state_change;
636a5d36 4565
f4a11bb0
JB		 4566 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4567 return -EINVAL;
4568
4569 if (!info->attrs[NL80211_ATTR_MAC])
4570 return -EINVAL;
4571
4572 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4573 return -EINVAL;
4574
4c476991
JB		 4575 if (!rdev->ops->disassoc)
4576 return -EOPNOTSUPP;
636a5d36 4577
074ac8df 4578 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4579 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4580 return -EOPNOTSUPP;
eec60b03 4581
19957bb3 4582 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4583
19957bb3
JB		 4584 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4585 if (reason_code == 0) {
f4a11bb0 4586 /* Reason Code 0 is reserved */
4c476991 4587 return -EINVAL;
255e737e 4588 }
636a5d36
JM		 4589
4590 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4591 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4592 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4593 }
4594
d5cdfacb
JM		 4595 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4596
4c476991
JB		 4597 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4598 local_state_change);
636a5d36
JM		 4599}
4600
dd5b4cc7
FF		 4601static bool
4602nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4603 int mcast_rate[IEEE80211_NUM_BANDS],
4604 int rateval)
4605{
4606 struct wiphy *wiphy = &rdev->wiphy;
4607 bool found = false;
4608 int band, i;
4609
4610 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4611 struct ieee80211_supported_band *sband;
4612
4613 sband = wiphy->bands[band];
4614 if (!sband)
4615 continue;
4616
4617 for (i = 0; i < sband->n_bitrates; i++) {
4618 if (sband->bitrates[i].bitrate == rateval) {
4619 mcast_rate[band] = i + 1;
4620 found = true;
4621 break;
4622 }
4623 }
4624 }
4625
4626 return found;
4627}
4628
04a773ad
JB		 4629static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4630{
4c476991
JB		 4631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4632 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4633 struct cfg80211_ibss_params ibss;
4634 struct wiphy *wiphy;
fffd0934 4635 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4636 int err;
4637
8e30bc55
JB		 4638 memset(&ibss, 0, sizeof(ibss));
4639
04a773ad
JB		 4640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4641 return -EINVAL;
4642
4643 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4644 !info->attrs[NL80211_ATTR_SSID] ||
4645 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4646 return -EINVAL;
4647
8e30bc55
JB		 4648 ibss.beacon_interval = 100;
4649
4650 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4651 ibss.beacon_interval =
4652 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4653 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4654 return -EINVAL;
4655 }
4656
4c476991
JB		 4657 if (!rdev->ops->join_ibss)
4658 return -EOPNOTSUPP;
04a773ad 4659
4c476991
JB		 4660 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4661 return -EOPNOTSUPP;
04a773ad 4662
79c97e97 4663 wiphy = &rdev->wiphy;
04a773ad 4664
39193498 4665 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4666 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4667
4668 if (!is_valid_ether_addr(ibss.bssid))
4669 return -EINVAL;
4670 }
04a773ad
JB		 4671 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4672 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4673
4674 if (info->attrs[NL80211_ATTR_IE]) {
4675 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4676 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4677 }
4678
4679 ibss.channel = ieee80211_get_channel(wiphy,
4680 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4681 if (!ibss.channel ||
4682 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4683 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4684 return -EINVAL;
04a773ad
JB		 4685
4686 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4687 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4688
fbd2c8dc
TP		 4689 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4690 u8 *rates =
4691 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4692 int n_rates =
4693 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4694 struct ieee80211_supported_band *sband =
4695 wiphy->bands[ibss.channel->band];
34850ab2 4696 int err;
fbd2c8dc 4697
34850ab2
JB		 4698 err = ieee80211_get_ratemask(sband, rates, n_rates,
4699 &ibss.basic_rates);
4700 if (err)
4701 return err;
fbd2c8dc 4702 }
dd5b4cc7
FF		 4703
4704 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4705 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4706 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4707 return -EINVAL;
fbd2c8dc 4708
4c476991
JB		 4709 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4710 connkeys = nl80211_parse_connkeys(rdev,
4711 info->attrs[NL80211_ATTR_KEYS]);
4712 if (IS_ERR(connkeys))
4713 return PTR_ERR(connkeys);
4714 }
04a773ad 4715
4c476991 4716 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4717 if (err)
4718 kfree(connkeys);
04a773ad
JB		 4719 return err;
4720}
4721
4722static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4723{
4c476991
JB		 4724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4725 struct net_device *dev = info->user_ptr[1];
04a773ad 4726
4c476991
JB		 4727 if (!rdev->ops->leave_ibss)
4728 return -EOPNOTSUPP;
04a773ad 4729
4c476991
JB		 4730 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4731 return -EOPNOTSUPP;
04a773ad 4732
4c476991 4733 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4734}
4735
aff89a9b
JB		 4736#ifdef CONFIG_NL80211_TESTMODE
4737static struct genl_multicast_group nl80211_testmode_mcgrp = {
4738 .name = "testmode",
4739};
4740
4741static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4742{
4c476991 4743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4744 int err;
4745
4746 if (!info->attrs[NL80211_ATTR_TESTDATA])
4747 return -EINVAL;
4748
aff89a9b
JB		 4749 err = -EOPNOTSUPP;
4750 if (rdev->ops->testmode_cmd) {
4751 rdev->testmode_info = info;
4752 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4753 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4754 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4755 rdev->testmode_info = NULL;
4756 }
4757
aff89a9b
JB		 4758 return err;
4759}
4760
71063f0e
WYG		 4761static int nl80211_testmode_dump(struct sk_buff *skb,
4762 struct netlink_callback *cb)
4763{
4764 struct cfg80211_registered_device *dev;
4765 int err;
4766 long phy_idx;
4767 void *data = NULL;
4768 int data_len = 0;
4769
4770 if (cb->args[0]) {
4771 /*
4772 * 0 is a valid index, but not valid for args[0],
4773 * so we need to offset by 1.
4774 */
4775 phy_idx = cb->args[0] - 1;
4776 } else {
4777 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4778 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4779 nl80211_policy);
4780 if (err)
4781 return err;
4782 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4783 return -EINVAL;
4784 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4785 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4786 cb->args[1] =
4787 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4788 }
4789
4790 if (cb->args[1]) {
4791 data = nla_data((void *)cb->args[1]);
4792 data_len = nla_len((void *)cb->args[1]);
4793 }
4794
4795 mutex_lock(&cfg80211_mutex);
4796 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4797 if (!dev) {
4798 mutex_unlock(&cfg80211_mutex);
4799 return -ENOENT;
4800 }
4801 cfg80211_lock_rdev(dev);
4802 mutex_unlock(&cfg80211_mutex);
4803
4804 if (!dev->ops->testmode_dump) {
4805 err = -EOPNOTSUPP;
4806 goto out_err;
4807 }
4808
4809 while (1) {
4810 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4811 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4812 NL80211_CMD_TESTMODE);
4813 struct nlattr *tmdata;
4814
4815 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4816 genlmsg_cancel(skb, hdr);
4817 break;
4818 }
4819
4820 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4821 if (!tmdata) {
4822 genlmsg_cancel(skb, hdr);
4823 break;
4824 }
4825 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4826 data, data_len);
4827 nla_nest_end(skb, tmdata);
4828
4829 if (err == -ENOBUFS || err == -ENOENT) {
4830 genlmsg_cancel(skb, hdr);
4831 break;
4832 } else if (err) {
4833 genlmsg_cancel(skb, hdr);
4834 goto out_err;
4835 }
4836
4837 genlmsg_end(skb, hdr);
4838 }
4839
4840 err = skb->len;
4841 /* see above */
4842 cb->args[0] = phy_idx + 1;
4843 out_err:
4844 cfg80211_unlock_rdev(dev);
4845 return err;
4846}
4847
aff89a9b
JB		 4848static struct sk_buff *
4849__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4850 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4851{
4852 struct sk_buff *skb;
4853 void *hdr;
4854 struct nlattr *data;
4855
4856 skb = nlmsg_new(approxlen + 100, gfp);
4857 if (!skb)
4858 return NULL;
4859
4860 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4861 if (!hdr) {
4862 kfree_skb(skb);
4863 return NULL;
4864 }
4865
4866 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4867 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4868
4869 ((void **)skb->cb)[0] = rdev;
4870 ((void **)skb->cb)[1] = hdr;
4871 ((void **)skb->cb)[2] = data;
4872
4873 return skb;
4874
4875 nla_put_failure:
4876 kfree_skb(skb);
4877 return NULL;
4878}
4879
4880struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4881 int approxlen)
4882{
4883 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4884
4885 if (WARN_ON(!rdev->testmode_info))
4886 return NULL;
4887
4888 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4889 rdev->testmode_info->snd_pid,
4890 rdev->testmode_info->snd_seq,
4891 GFP_KERNEL);
4892}
4893EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4894
4895int cfg80211_testmode_reply(struct sk_buff *skb)
4896{
4897 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4898 void *hdr = ((void **)skb->cb)[1];
4899 struct nlattr *data = ((void **)skb->cb)[2];
4900
4901 if (WARN_ON(!rdev->testmode_info)) {
4902 kfree_skb(skb);
4903 return -EINVAL;
4904 }
4905
4906 nla_nest_end(skb, data);
4907 genlmsg_end(skb, hdr);
4908 return genlmsg_reply(skb, rdev->testmode_info);
4909}
4910EXPORT_SYMBOL(cfg80211_testmode_reply);
4911
4912struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4913 int approxlen, gfp_t gfp)
4914{
4915 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4916
4917 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4918}
4919EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4920
4921void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4922{
4923 void *hdr = ((void **)skb->cb)[1];
4924 struct nlattr *data = ((void **)skb->cb)[2];
4925
4926 nla_nest_end(skb, data);
4927 genlmsg_end(skb, hdr);
4928 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4929}
4930EXPORT_SYMBOL(cfg80211_testmode_event);
4931#endif
4932
b23aa676
SO		 4933static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4934{
4c476991
JB		 4935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4936 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4937 struct cfg80211_connect_params connect;
4938 struct wiphy *wiphy;
fffd0934 4939 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4940 int err;
4941
4942 memset(&connect, 0, sizeof(connect));
4943
4944 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4945 return -EINVAL;
4946
4947 if (!info->attrs[NL80211_ATTR_SSID] ||
4948 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4949 return -EINVAL;
4950
4951 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4952 connect.auth_type =
4953 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4954 if (!nl80211_valid_auth_type(connect.auth_type))
4955 return -EINVAL;
4956 } else
4957 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4958
4959 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4960
c0692b8f 4961 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4962 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4963 if (err)
4964 return err;
b23aa676 4965
074ac8df 4966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4968 return -EOPNOTSUPP;
b23aa676 4969
79c97e97 4970 wiphy = &rdev->wiphy;
b23aa676 4971
b23aa676
SO		 4972 if (info->attrs[NL80211_ATTR_MAC])
4973 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4974 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4975 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4976
4977 if (info->attrs[NL80211_ATTR_IE]) {
4978 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4979 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4980 }
4981
4982 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4983 connect.channel =
4984 ieee80211_get_channel(wiphy,
4985 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4986 if (!connect.channel ||
4c476991
JB		 4987 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4988 return -EINVAL;
b23aa676
SO		 4989 }
4990
fffd0934
JB		 4991 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4992 connkeys = nl80211_parse_connkeys(rdev,
4993 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4994 if (IS_ERR(connkeys))
4995 return PTR_ERR(connkeys);
fffd0934
JB		 4996 }
4997
7e7c8926
BG		 4998 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4999 connect.flags |= ASSOC_REQ_DISABLE_HT;
5000
5001 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5002 memcpy(&connect.ht_capa_mask,
5003 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5004 sizeof(connect.ht_capa_mask));
5005
5006 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5007 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5008 return -EINVAL;
5009 memcpy(&connect.ht_capa,
5010 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5011 sizeof(connect.ht_capa));
5012 }
5013
fffd0934 5014 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5015 if (err)
5016 kfree(connkeys);
b23aa676
SO		 5017 return err;
5018}
5019
5020static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5021{
4c476991
JB		 5022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5023 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5024 u16 reason;
5025
5026 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5027 reason = WLAN_REASON_DEAUTH_LEAVING;
5028 else
5029 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5030
5031 if (reason == 0)
5032 return -EINVAL;
5033
074ac8df 5034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5036 return -EOPNOTSUPP;
b23aa676 5037
4c476991 5038 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5039}
5040
463d0183
JB		 5041static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5042{
4c476991 5043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5044 struct net *net;
5045 int err;
5046 u32 pid;
5047
5048 if (!info->attrs[NL80211_ATTR_PID])
5049 return -EINVAL;
5050
5051 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5052
463d0183 5053 net = get_net_ns_by_pid(pid);
4c476991
JB		 5054 if (IS_ERR(net))
5055 return PTR_ERR(net);
463d0183
JB		 5056
5057 err = 0;
5058
5059 /* check if anything to do */
4c476991
JB		 5060 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5061 err = cfg80211_switch_netns(rdev, net);
463d0183 5062
463d0183 5063 put_net(net);
463d0183
JB		 5064 return err;
5065}
5066
67fbb16b
SO		 5067static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5068{
4c476991 5069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5070 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5071 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5072 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5073 struct cfg80211_pmksa pmksa;
5074
5075 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5076
5077 if (!info->attrs[NL80211_ATTR_MAC])
5078 return -EINVAL;
5079
5080 if (!info->attrs[NL80211_ATTR_PMKID])
5081 return -EINVAL;
5082
67fbb16b
SO		 5083 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5084 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5085
074ac8df 5086 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5087 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5088 return -EOPNOTSUPP;
67fbb16b
SO		 5089
5090 switch (info->genlhdr->cmd) {
5091 case NL80211_CMD_SET_PMKSA:
5092 rdev_ops = rdev->ops->set_pmksa;
5093 break;
5094 case NL80211_CMD_DEL_PMKSA:
5095 rdev_ops = rdev->ops->del_pmksa;
5096 break;
5097 default:
5098 WARN_ON(1);
5099 break;
5100 }
5101
4c476991
JB		 5102 if (!rdev_ops)
5103 return -EOPNOTSUPP;
67fbb16b 5104
4c476991 5105 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5106}
5107
5108static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5109{
4c476991
JB		 5110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5111 struct net_device *dev = info->user_ptr[1];
67fbb16b 5112
074ac8df 5113 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5114 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5115 return -EOPNOTSUPP;
67fbb16b 5116
4c476991
JB		 5117 if (!rdev->ops->flush_pmksa)
5118 return -EOPNOTSUPP;
67fbb16b 5119
4c476991 5120 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5121}
5122
109086ce
AN		 5123static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5124{
5125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5126 struct net_device *dev = info->user_ptr[1];
5127 u8 action_code, dialog_token;
5128 u16 status_code;
5129 u8 *peer;
5130
5131 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5132 !rdev->ops->tdls_mgmt)
5133 return -EOPNOTSUPP;
5134
5135 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5136 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5137 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5138 !info->attrs[NL80211_ATTR_IE] ||
5139 !info->attrs[NL80211_ATTR_MAC])
5140 return -EINVAL;
5141
5142 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5143 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5144 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5145 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5146
5147 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5148 dialog_token, status_code,
5149 nla_data(info->attrs[NL80211_ATTR_IE]),
5150 nla_len(info->attrs[NL80211_ATTR_IE]));
5151}
5152
5153static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5154{
5155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5156 struct net_device *dev = info->user_ptr[1];
5157 enum nl80211_tdls_operation operation;
5158 u8 *peer;
5159
5160 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5161 !rdev->ops->tdls_oper)
5162 return -EOPNOTSUPP;
5163
5164 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5165 !info->attrs[NL80211_ATTR_MAC])
5166 return -EINVAL;
5167
5168 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5169 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5170
5171 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5172}
5173
9588bbd5
JM		 5174static int nl80211_remain_on_channel(struct sk_buff *skb,
5175 struct genl_info *info)
5176{
4c476991
JB		 5177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5178 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5179 struct ieee80211_channel *chan;
5180 struct sk_buff *msg;
5181 void *hdr;
5182 u64 cookie;
5183 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5184 u32 freq, duration;
5185 int err;
5186
5187 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5188 !info->attrs[NL80211_ATTR_DURATION])
5189 return -EINVAL;
5190
5191 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5192
5193 /*
5194 * We should be on that channel for at least one jiffie,
5195 * and more than 5 seconds seems excessive.
5196 */
a293911d
JB		 5197 if (!duration || !msecs_to_jiffies(duration) ||
5198 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5199 return -EINVAL;
5200
7c4ef712
JB		 5201 if (!rdev->ops->remain_on_channel ||
5202 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5203 return -EOPNOTSUPP;
9588bbd5 5204
9588bbd5
JM		 5205 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5206 channel_type = nla_get_u32(
5207 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5208 if (channel_type != NL80211_CHAN_NO_HT &&
5209 channel_type != NL80211_CHAN_HT20 &&
5210 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5211 channel_type != NL80211_CHAN_HT40MINUS)
5212 return -EINVAL;
9588bbd5
JM		 5213 }
5214
5215 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5216 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5217 if (chan == NULL)
5218 return -EINVAL;
9588bbd5
JM		 5219
5220 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5221 if (!msg)
5222 return -ENOMEM;
9588bbd5
JM		 5223
5224 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5225 NL80211_CMD_REMAIN_ON_CHANNEL);
5226
5227 if (IS_ERR(hdr)) {
5228 err = PTR_ERR(hdr);
5229 goto free_msg;
5230 }
5231
5232 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5233 channel_type, duration, &cookie);
5234
5235 if (err)
5236 goto free_msg;
5237
5238 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5239
5240 genlmsg_end(msg, hdr);
4c476991
JB		 5241
5242 return genlmsg_reply(msg, info);
9588bbd5
JM		 5243
5244 nla_put_failure:
5245 err = -ENOBUFS;
5246 free_msg:
5247 nlmsg_free(msg);
9588bbd5
JM		 5248 return err;
5249}
5250
5251static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5252 struct genl_info *info)
5253{
4c476991
JB		 5254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5255 struct net_device *dev = info->user_ptr[1];
9588bbd5 5256 u64 cookie;
9588bbd5
JM		 5257
5258 if (!info->attrs[NL80211_ATTR_COOKIE])
5259 return -EINVAL;
5260
4c476991
JB		 5261 if (!rdev->ops->cancel_remain_on_channel)
5262 return -EOPNOTSUPP;
9588bbd5 5263
9588bbd5
JM		 5264 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5265
4c476991 5266 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5267}
5268
13ae75b1
JM		 5269static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5270 u8 *rates, u8 rates_len)
5271{
5272 u8 i;
5273 u32 mask = 0;
5274
5275 for (i = 0; i < rates_len; i++) {
5276 int rate = (rates[i] & 0x7f) * 5;
5277 int ridx;
5278 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5279 struct ieee80211_rate *srate =
5280 &sband->bitrates[ridx];
5281 if (rate == srate->bitrate) {
5282 mask |= 1 << ridx;
5283 break;
5284 }
5285 }
5286 if (ridx == sband->n_bitrates)
5287 return 0; /* rate not found */
5288 }
5289
5290 return mask;
5291}
5292
b54452b0 5293static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5294 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5295 .len = NL80211_MAX_SUPP_RATES },
5296};
5297
5298static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5299 struct genl_info *info)
5300{
5301 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5303 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5304 int rem, i;
5305 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5306 struct nlattr *tx_rates;
5307 struct ieee80211_supported_band *sband;
5308
5309 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5310 return -EINVAL;
5311
4c476991
JB		 5312 if (!rdev->ops->set_bitrate_mask)
5313 return -EOPNOTSUPP;
13ae75b1
JM		 5314
5315 memset(&mask, 0, sizeof(mask));
5316 /* Default to all rates enabled */
5317 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5318 sband = rdev->wiphy.bands[i];
5319 mask.control[i].legacy =
5320 sband ? (1 << sband->n_bitrates) - 1 : 0;
5321 }
5322
5323 /*
5324 * The nested attribute uses enum nl80211_band as the index. This maps
5325 * directly to the enum ieee80211_band values used in cfg80211.
5326 */
5327 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5328 {
5329 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5330 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5331 return -EINVAL;
13ae75b1 5332 sband = rdev->wiphy.bands[band];
4c476991
JB		 5333 if (sband == NULL)
5334 return -EINVAL;
13ae75b1
JM		 5335 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5336 nla_len(tx_rates), nl80211_txattr_policy);
5337 if (tb[NL80211_TXRATE_LEGACY]) {
5338 mask.control[band].legacy = rateset_to_mask(
5339 sband,
5340 nla_data(tb[NL80211_TXRATE_LEGACY]),
5341 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5342 if (mask.control[band].legacy == 0)
5343 return -EINVAL;
13ae75b1
JM		 5344 }
5345 }
5346
4c476991 5347 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5348}
5349
2e161f78 5350static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5351{
4c476991
JB		 5352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5353 struct net_device *dev = info->user_ptr[1];
2e161f78 5354 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5355
5356 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5357 return -EINVAL;
5358
2e161f78
JB		 5359 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5360 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5361
9d38d85d 5362 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5367 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5368 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5369 return -EOPNOTSUPP;
026331c4
JM		 5370
5371 /* not much point in registering if we can't reply */
4c476991
JB		 5372 if (!rdev->ops->mgmt_tx)
5373 return -EOPNOTSUPP;
026331c4 5374
4c476991 5375 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5376 frame_type,
026331c4
JM		 5377 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5378 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5379}
5380
2e161f78 5381static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5382{
4c476991
JB		 5383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5384 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5385 struct ieee80211_channel *chan;
5386 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5387 bool channel_type_valid = false;
026331c4
JM		 5388 u32 freq;
5389 int err;
d64d373f 5390 void *hdr = NULL;
026331c4 5391 u64 cookie;
e247bd90 5392 struct sk_buff *msg = NULL;
f7ca38df 5393 unsigned int wait = 0;
e247bd90
JB		 5394 bool offchan, no_cck, dont_wait_for_ack;
5395
5396 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5397
5398 if (!info->attrs[NL80211_ATTR_FRAME] ||
5399 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5400 return -EINVAL;
5401
4c476991
JB		 5402 if (!rdev->ops->mgmt_tx)
5403 return -EOPNOTSUPP;
026331c4 5404
9d38d85d 5405 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5406 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5407 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5410 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5412 return -EOPNOTSUPP;
026331c4 5413
f7ca38df 5414 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5415 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5416 return -EINVAL;
5417 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5418 }
5419
026331c4
JM		 5420 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5421 channel_type = nla_get_u32(
5422 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5423 if (channel_type != NL80211_CHAN_NO_HT &&
5424 channel_type != NL80211_CHAN_HT20 &&
5425 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5426 channel_type != NL80211_CHAN_HT40MINUS)
5427 return -EINVAL;
252aa631 5428 channel_type_valid = true;
026331c4
JM		 5429 }
5430
f7ca38df
JB		 5431 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5432
7c4ef712
JB		 5433 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5434 return -EINVAL;
5435
e9f935e3
RM		 5436 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5437
026331c4
JM		 5438 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5439 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5440 if (chan == NULL)
5441 return -EINVAL;
026331c4 5442
e247bd90
JB		 5443 if (!dont_wait_for_ack) {
5444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5445 if (!msg)
5446 return -ENOMEM;
026331c4 5447
e247bd90
JB		 5448 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5449 NL80211_CMD_FRAME);
026331c4 5450
e247bd90
JB		 5451 if (IS_ERR(hdr)) {
5452 err = PTR_ERR(hdr);
5453 goto free_msg;
5454 }
026331c4 5455 }
e247bd90 5456
f7ca38df
JB		 5457 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5458 channel_type_valid, wait,
2e161f78
JB		 5459 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5460 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5461 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5462 if (err)
5463 goto free_msg;
5464
e247bd90
JB		 5465 if (msg) {
5466 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5467
e247bd90
JB		 5468 genlmsg_end(msg, hdr);
5469 return genlmsg_reply(msg, info);
5470 }
5471
5472 return 0;
026331c4
JM		 5473
5474 nla_put_failure:
5475 err = -ENOBUFS;
5476 free_msg:
5477 nlmsg_free(msg);
026331c4
JM		 5478 return err;
5479}
5480
f7ca38df
JB		 5481static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5482{
5483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5484 struct net_device *dev = info->user_ptr[1];
5485 u64 cookie;
5486
5487 if (!info->attrs[NL80211_ATTR_COOKIE])
5488 return -EINVAL;
5489
5490 if (!rdev->ops->mgmt_tx_cancel_wait)
5491 return -EOPNOTSUPP;
5492
5493 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5495 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5496 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5497 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5498 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5499 return -EOPNOTSUPP;
5500
5501 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5502
5503 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5504}
5505
ffb9eb3d
KV		 5506static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5507{
4c476991 5508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5509 struct wireless_dev *wdev;
4c476991 5510 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5511 u8 ps_state;
5512 bool state;
5513 int err;
5514
4c476991
JB		 5515 if (!info->attrs[NL80211_ATTR_PS_STATE])
5516 return -EINVAL;
ffb9eb3d
KV		 5517
5518 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5519
4c476991
JB		 5520 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5521 return -EINVAL;
ffb9eb3d
KV		 5522
5523 wdev = dev->ieee80211_ptr;
5524
4c476991
JB		 5525 if (!rdev->ops->set_power_mgmt)
5526 return -EOPNOTSUPP;
ffb9eb3d
KV		 5527
5528 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5529
5530 if (state == wdev->ps)
4c476991 5531 return 0;
ffb9eb3d 5532
4c476991
JB		 5533 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5534 wdev->ps_timeout);
5535 if (!err)
5536 wdev->ps = state;
ffb9eb3d
KV		 5537 return err;
5538}
5539
5540static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5541{
4c476991 5542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5543 enum nl80211_ps_state ps_state;
5544 struct wireless_dev *wdev;
4c476991 5545 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5546 struct sk_buff *msg;
5547 void *hdr;
5548 int err;
5549
ffb9eb3d
KV		 5550 wdev = dev->ieee80211_ptr;
5551
4c476991
JB		 5552 if (!rdev->ops->set_power_mgmt)
5553 return -EOPNOTSUPP;
ffb9eb3d
KV		 5554
5555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5556 if (!msg)
5557 return -ENOMEM;
ffb9eb3d
KV		 5558
5559 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5560 NL80211_CMD_GET_POWER_SAVE);
5561 if (!hdr) {
4c476991 5562 err = -ENOBUFS;
ffb9eb3d
KV		 5563 goto free_msg;
5564 }
5565
5566 if (wdev->ps)
5567 ps_state = NL80211_PS_ENABLED;
5568 else
5569 ps_state = NL80211_PS_DISABLED;
5570
5571 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5572
5573 genlmsg_end(msg, hdr);
4c476991 5574 return genlmsg_reply(msg, info);
ffb9eb3d 5575
4c476991 5576 nla_put_failure:
ffb9eb3d 5577 err = -ENOBUFS;
4c476991 5578 free_msg:
ffb9eb3d 5579 nlmsg_free(msg);
ffb9eb3d
KV		 5580 return err;
5581}
5582
d6dc1a38
JO		 5583static struct nla_policy
5584nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5585 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5586 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5587 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5588};
5589
5590static int nl80211_set_cqm_rssi(struct genl_info *info,
5591 s32 threshold, u32 hysteresis)
5592{
4c476991 5593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5594 struct wireless_dev *wdev;
4c476991 5595 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5596
5597 if (threshold > 0)
5598 return -EINVAL;
5599
d6dc1a38
JO		 5600 wdev = dev->ieee80211_ptr;
5601
4c476991
JB		 5602 if (!rdev->ops->set_cqm_rssi_config)
5603 return -EOPNOTSUPP;
d6dc1a38 5604
074ac8df 5605 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5606 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5607 return -EOPNOTSUPP;
d6dc1a38 5608
4c476991
JB		 5609 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5610 threshold, hysteresis);
d6dc1a38
JO		 5611}
5612
5613static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5614{
5615 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5616 struct nlattr *cqm;
5617 int err;
5618
5619 cqm = info->attrs[NL80211_ATTR_CQM];
5620 if (!cqm) {
5621 err = -EINVAL;
5622 goto out;
5623 }
5624
5625 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5626 nl80211_attr_cqm_policy);
5627 if (err)
5628 goto out;
5629
5630 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5631 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5632 s32 threshold;
5633 u32 hysteresis;
5634 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5635 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5636 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5637 } else
5638 err = -EINVAL;
5639
5640out:
5641 return err;
5642}
5643
29cbe68c
JB		 5644static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5645{
5646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5647 struct net_device *dev = info->user_ptr[1];
5648 struct mesh_config cfg;
c80d545d 5649 struct mesh_setup setup;
29cbe68c
JB		 5650 int err;
5651
5652 /* start with default */
5653 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5654 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5655
24bdd9f4 5656 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5657 /* and parse parameters if given */
24bdd9f4 5658 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5659 if (err)
5660 return err;
5661 }
5662
5663 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5664 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5665 return -EINVAL;
5666
c80d545d
JC		 5667 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5668 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5669
4bb62344
CYY		 5670 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5671 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5672 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5673 return -EINVAL;
5674
c80d545d
JC		 5675 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5676 /* parse additional setup parameters if given */
5677 err = nl80211_parse_mesh_setup(info, &setup);
5678 if (err)
5679 return err;
5680 }
5681
5682 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5683}
5684
5685static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5686{
5687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5688 struct net_device *dev = info->user_ptr[1];
5689
5690 return cfg80211_leave_mesh(rdev, dev);
5691}
5692
ff1b6e69
JB		 5693static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5694{
5695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5696 struct sk_buff *msg;
5697 void *hdr;
5698
5699 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5700 return -EOPNOTSUPP;
5701
5702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5703 if (!msg)
5704 return -ENOMEM;
5705
5706 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5707 NL80211_CMD_GET_WOWLAN);
5708 if (!hdr)
5709 goto nla_put_failure;
5710
5711 if (rdev->wowlan) {
5712 struct nlattr *nl_wowlan;
5713
5714 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5715 if (!nl_wowlan)
5716 goto nla_put_failure;
5717
5718 if (rdev->wowlan->any)
5719 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5720 if (rdev->wowlan->disconnect)
5721 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5722 if (rdev->wowlan->magic_pkt)
5723 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5724 if (rdev->wowlan->gtk_rekey_failure)
5725 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5726 if (rdev->wowlan->eap_identity_req)
5727 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5728 if (rdev->wowlan->four_way_handshake)
5729 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5730 if (rdev->wowlan->rfkill_release)
5731 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5732 if (rdev->wowlan->n_patterns) {
5733 struct nlattr *nl_pats, *nl_pat;
5734 int i, pat_len;
5735
5736 nl_pats = nla_nest_start(msg,
5737 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5738 if (!nl_pats)
5739 goto nla_put_failure;
5740
5741 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5742 nl_pat = nla_nest_start(msg, i + 1);
5743 if (!nl_pat)
5744 goto nla_put_failure;
5745 pat_len = rdev->wowlan->patterns[i].pattern_len;
5746 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5747 DIV_ROUND_UP(pat_len, 8),
5748 rdev->wowlan->patterns[i].mask);
5749 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5750 pat_len,
5751 rdev->wowlan->patterns[i].pattern);
5752 nla_nest_end(msg, nl_pat);
5753 }
5754 nla_nest_end(msg, nl_pats);
5755 }
5756
5757 nla_nest_end(msg, nl_wowlan);
5758 }
5759
5760 genlmsg_end(msg, hdr);
5761 return genlmsg_reply(msg, info);
5762
5763nla_put_failure:
5764 nlmsg_free(msg);
5765 return -ENOBUFS;
5766}
5767
5768static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5769{
5770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5771 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5772 struct cfg80211_wowlan no_triggers = {};
5773 struct cfg80211_wowlan new_triggers = {};
5774 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5775 int err, i;
5776
5777 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5778 return -EOPNOTSUPP;
5779
5780 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5781 goto no_triggers;
5782
5783 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5784 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5785 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5786 nl80211_wowlan_policy);
5787 if (err)
5788 return err;
5789
5790 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5791 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5792 return -EINVAL;
5793 new_triggers.any = true;
5794 }
5795
5796 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5797 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5798 return -EINVAL;
5799 new_triggers.disconnect = true;
5800 }
5801
5802 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5803 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5804 return -EINVAL;
5805 new_triggers.magic_pkt = true;
5806 }
5807
77dbbb13
JB		 5808 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5809 return -EINVAL;
5810
5811 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5812 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5813 return -EINVAL;
5814 new_triggers.gtk_rekey_failure = true;
5815 }
5816
5817 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5818 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5819 return -EINVAL;
5820 new_triggers.eap_identity_req = true;
5821 }
5822
5823 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5824 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5825 return -EINVAL;
5826 new_triggers.four_way_handshake = true;
5827 }
5828
5829 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5830 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5831 return -EINVAL;
5832 new_triggers.rfkill_release = true;
5833 }
5834
ff1b6e69
JB		 5835 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5836 struct nlattr *pat;
5837 int n_patterns = 0;
5838 int rem, pat_len, mask_len;
5839 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5840
5841 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5842 rem)
5843 n_patterns++;
5844 if (n_patterns > wowlan->n_patterns)
5845 return -EINVAL;
5846
5847 new_triggers.patterns = kcalloc(n_patterns,
5848 sizeof(new_triggers.patterns[0]),
5849 GFP_KERNEL);
5850 if (!new_triggers.patterns)
5851 return -ENOMEM;
5852
5853 new_triggers.n_patterns = n_patterns;
5854 i = 0;
5855
5856 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5857 rem) {
5858 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5859 nla_data(pat), nla_len(pat), NULL);
5860 err = -EINVAL;
5861 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5862 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5863 goto error;
5864 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5865 mask_len = DIV_ROUND_UP(pat_len, 8);
5866 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5867 mask_len)
5868 goto error;
5869 if (pat_len > wowlan->pattern_max_len ||
5870 pat_len < wowlan->pattern_min_len)
5871 goto error;
5872
5873 new_triggers.patterns[i].mask =
5874 kmalloc(mask_len + pat_len, GFP_KERNEL);
5875 if (!new_triggers.patterns[i].mask) {
5876 err = -ENOMEM;
5877 goto error;
5878 }
5879 new_triggers.patterns[i].pattern =
5880 new_triggers.patterns[i].mask + mask_len;
5881 memcpy(new_triggers.patterns[i].mask,
5882 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5883 mask_len);
5884 new_triggers.patterns[i].pattern_len = pat_len;
5885 memcpy(new_triggers.patterns[i].pattern,
5886 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5887 pat_len);
5888 i++;
5889 }
5890 }
5891
5892 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5893 struct cfg80211_wowlan *ntrig;
5894 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5895 GFP_KERNEL);
5896 if (!ntrig) {
5897 err = -ENOMEM;
5898 goto error;
5899 }
5900 cfg80211_rdev_free_wowlan(rdev);
5901 rdev->wowlan = ntrig;
5902 } else {
5903 no_triggers:
5904 cfg80211_rdev_free_wowlan(rdev);
5905 rdev->wowlan = NULL;
5906 }
5907
5908 return 0;
5909 error:
5910 for (i = 0; i < new_triggers.n_patterns; i++)
5911 kfree(new_triggers.patterns[i].mask);
5912 kfree(new_triggers.patterns);
5913 return err;
5914}
5915
e5497d76
JB		 5916static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5917{
5918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5919 struct net_device *dev = info->user_ptr[1];
5920 struct wireless_dev *wdev = dev->ieee80211_ptr;
5921 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5922 struct cfg80211_gtk_rekey_data rekey_data;
5923 int err;
5924
5925 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5926 return -EINVAL;
5927
5928 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5929 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5930 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5931 nl80211_rekey_policy);
5932 if (err)
5933 return err;
5934
5935 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5936 return -ERANGE;
5937 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5938 return -ERANGE;
5939 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5940 return -ERANGE;
5941
5942 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5943 NL80211_KEK_LEN);
5944 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5945 NL80211_KCK_LEN);
5946 memcpy(rekey_data.replay_ctr,
5947 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5948 NL80211_REPLAY_CTR_LEN);
5949
5950 wdev_lock(wdev);
5951 if (!wdev->current_bss) {
5952 err = -ENOTCONN;
5953 goto out;
5954 }
5955
5956 if (!rdev->ops->set_rekey_data) {
5957 err = -EOPNOTSUPP;
5958 goto out;
5959 }
5960
5961 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5962 out:
5963 wdev_unlock(wdev);
5964 return err;
5965}
5966
28946da7
JB		 5967static int nl80211_register_unexpected_frame(struct sk_buff *skb,
5968 struct genl_info *info)
5969{
5970 struct net_device *dev = info->user_ptr[1];
5971 struct wireless_dev *wdev = dev->ieee80211_ptr;
5972
5973 if (wdev->iftype != NL80211_IFTYPE_AP &&
5974 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5975 return -EINVAL;
5976
5977 if (wdev->ap_unexpected_nlpid)
5978 return -EBUSY;
5979
5980 wdev->ap_unexpected_nlpid = info->snd_pid;
5981 return 0;
5982}
5983
7f6cf311
JB		 5984static int nl80211_probe_client(struct sk_buff *skb,
5985 struct genl_info *info)
5986{
5987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5988 struct net_device *dev = info->user_ptr[1];
5989 struct wireless_dev *wdev = dev->ieee80211_ptr;
5990 struct sk_buff *msg;
5991 void *hdr;
5992 const u8 *addr;
5993 u64 cookie;
5994 int err;
5995
5996 if (wdev->iftype != NL80211_IFTYPE_AP &&
5997 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5998 return -EOPNOTSUPP;
5999
6000 if (!info->attrs[NL80211_ATTR_MAC])
6001 return -EINVAL;
6002
6003 if (!rdev->ops->probe_client)
6004 return -EOPNOTSUPP;
6005
6006 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6007 if (!msg)
6008 return -ENOMEM;
6009
6010 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6011 NL80211_CMD_PROBE_CLIENT);
6012
6013 if (IS_ERR(hdr)) {
6014 err = PTR_ERR(hdr);
6015 goto free_msg;
6016 }
6017
6018 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6019
6020 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6021 if (err)
6022 goto free_msg;
6023
6024 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6025
6026 genlmsg_end(msg, hdr);
6027
6028 return genlmsg_reply(msg, info);
6029
6030 nla_put_failure:
6031 err = -ENOBUFS;
6032 free_msg:
6033 nlmsg_free(msg);
6034 return err;
6035}
6036
5e760230
JB		 6037static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6038{
6039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6040
6041 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6042 return -EOPNOTSUPP;
6043
6044 if (rdev->ap_beacons_nlpid)
6045 return -EBUSY;
6046
6047 rdev->ap_beacons_nlpid = info->snd_pid;
6048
6049 return 0;
6050}
6051
4c476991
JB		 6052#define NL80211_FLAG_NEED_WIPHY 0x01
6053#define NL80211_FLAG_NEED_NETDEV 0x02
6054#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6055#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6056#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6057 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6058
6059static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6060 struct genl_info *info)
6061{
6062 struct cfg80211_registered_device *rdev;
6063 struct net_device *dev;
6064 int err;
6065 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6066
6067 if (rtnl)
6068 rtnl_lock();
6069
6070 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6071 rdev = cfg80211_get_dev_from_info(info);
6072 if (IS_ERR(rdev)) {
6073 if (rtnl)
6074 rtnl_unlock();
6075 return PTR_ERR(rdev);
6076 }
6077 info->user_ptr[0] = rdev;
6078 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6079 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
6080 if (err) {
6081 if (rtnl)
6082 rtnl_unlock();
6083 return err;
6084 }
41265714
JB		 6085 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6086 !netif_running(dev)) {
d537f5fd
JB		 6087 cfg80211_unlock_rdev(rdev);
6088 dev_put(dev);
41265714
JB		 6089 if (rtnl)
6090 rtnl_unlock();
6091 return -ENETDOWN;
6092 }
4c476991
JB		 6093 info->user_ptr[0] = rdev;
6094 info->user_ptr[1] = dev;
6095 }
6096
6097 return 0;
6098}
6099
6100static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6101 struct genl_info *info)
6102{
6103 if (info->user_ptr[0])
6104 cfg80211_unlock_rdev(info->user_ptr[0]);
6105 if (info->user_ptr[1])
6106 dev_put(info->user_ptr[1]);
6107 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6108 rtnl_unlock();
6109}
6110
55682965
JB		 6111static struct genl_ops nl80211_ops[] = {
6112 {
6113 .cmd = NL80211_CMD_GET_WIPHY,
6114 .doit = nl80211_get_wiphy,
6115 .dumpit = nl80211_dump_wiphy,
6116 .policy = nl80211_policy,
6117 /* can be retrieved by unprivileged users */
4c476991 6118 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6119 },
6120 {
6121 .cmd = NL80211_CMD_SET_WIPHY,
6122 .doit = nl80211_set_wiphy,
6123 .policy = nl80211_policy,
6124 .flags = GENL_ADMIN_PERM,
4c476991 6125 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6126 },
6127 {
6128 .cmd = NL80211_CMD_GET_INTERFACE,
6129 .doit = nl80211_get_interface,
6130 .dumpit = nl80211_dump_interface,
6131 .policy = nl80211_policy,
6132 /* can be retrieved by unprivileged users */
4c476991 6133 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6134 },
6135 {
6136 .cmd = NL80211_CMD_SET_INTERFACE,
6137 .doit = nl80211_set_interface,
6138 .policy = nl80211_policy,
6139 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6140 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6141 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6142 },
6143 {
6144 .cmd = NL80211_CMD_NEW_INTERFACE,
6145 .doit = nl80211_new_interface,
6146 .policy = nl80211_policy,
6147 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6148 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6149 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6150 },
6151 {
6152 .cmd = NL80211_CMD_DEL_INTERFACE,
6153 .doit = nl80211_del_interface,
6154 .policy = nl80211_policy,
41ade00f 6155 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6156 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6157 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6158 },
6159 {
6160 .cmd = NL80211_CMD_GET_KEY,
6161 .doit = nl80211_get_key,
6162 .policy = nl80211_policy,
6163 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6164 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6165 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6166 },
6167 {
6168 .cmd = NL80211_CMD_SET_KEY,
6169 .doit = nl80211_set_key,
6170 .policy = nl80211_policy,
6171 .flags = GENL_ADMIN_PERM,
41265714 6172 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6173 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6174 },
6175 {
6176 .cmd = NL80211_CMD_NEW_KEY,
6177 .doit = nl80211_new_key,
6178 .policy = nl80211_policy,
6179 .flags = GENL_ADMIN_PERM,
41265714 6180 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6181 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6182 },
6183 {
6184 .cmd = NL80211_CMD_DEL_KEY,
6185 .doit = nl80211_del_key,
6186 .policy = nl80211_policy,
55682965 6187 .flags = GENL_ADMIN_PERM,
41265714 6188 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6189 NL80211_FLAG_NEED_RTNL,
55682965 6190 },
ed1b6cc7
JB		 6191 {
6192 .cmd = NL80211_CMD_SET_BEACON,
6193 .policy = nl80211_policy,
6194 .flags = GENL_ADMIN_PERM,
6195 .doit = nl80211_addset_beacon,
4c476991
JB		 6196 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6197 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6198 },
6199 {
6200 .cmd = NL80211_CMD_NEW_BEACON,
6201 .policy = nl80211_policy,
6202 .flags = GENL_ADMIN_PERM,
6203 .doit = nl80211_addset_beacon,
4c476991
JB		 6204 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6205 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6206 },
6207 {
6208 .cmd = NL80211_CMD_DEL_BEACON,
6209 .policy = nl80211_policy,
6210 .flags = GENL_ADMIN_PERM,
6211 .doit = nl80211_del_beacon,
4c476991
JB		 6212 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6213 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6214 },
5727ef1b
JB		 6215 {
6216 .cmd = NL80211_CMD_GET_STATION,
6217 .doit = nl80211_get_station,
2ec600d6 6218 .dumpit = nl80211_dump_station,
5727ef1b 6219 .policy = nl80211_policy,
4c476991
JB		 6220 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6221 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6222 },
6223 {
6224 .cmd = NL80211_CMD_SET_STATION,
6225 .doit = nl80211_set_station,
6226 .policy = nl80211_policy,
6227 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6228 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6229 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6230 },
6231 {
6232 .cmd = NL80211_CMD_NEW_STATION,
6233 .doit = nl80211_new_station,
6234 .policy = nl80211_policy,
6235 .flags = GENL_ADMIN_PERM,
41265714 6236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6237 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6238 },
6239 {
6240 .cmd = NL80211_CMD_DEL_STATION,
6241 .doit = nl80211_del_station,
6242 .policy = nl80211_policy,
2ec600d6 6243 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6244 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6245 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6246 },
6247 {
6248 .cmd = NL80211_CMD_GET_MPATH,
6249 .doit = nl80211_get_mpath,
6250 .dumpit = nl80211_dump_mpath,
6251 .policy = nl80211_policy,
6252 .flags = GENL_ADMIN_PERM,
41265714 6253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6254 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6255 },
6256 {
6257 .cmd = NL80211_CMD_SET_MPATH,
6258 .doit = nl80211_set_mpath,
6259 .policy = nl80211_policy,
6260 .flags = GENL_ADMIN_PERM,
41265714 6261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6262 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6263 },
6264 {
6265 .cmd = NL80211_CMD_NEW_MPATH,
6266 .doit = nl80211_new_mpath,
6267 .policy = nl80211_policy,
6268 .flags = GENL_ADMIN_PERM,
41265714 6269 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6270 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6271 },
6272 {
6273 .cmd = NL80211_CMD_DEL_MPATH,
6274 .doit = nl80211_del_mpath,
6275 .policy = nl80211_policy,
9f1ba906 6276 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6277 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6278 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6279 },
6280 {
6281 .cmd = NL80211_CMD_SET_BSS,
6282 .doit = nl80211_set_bss,
6283 .policy = nl80211_policy,
b2e1b302 6284 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6286 NL80211_FLAG_NEED_RTNL,
b2e1b302 6287 },
f130347c
LR		 6288 {
6289 .cmd = NL80211_CMD_GET_REG,
6290 .doit = nl80211_get_reg,
6291 .policy = nl80211_policy,
6292 /* can be retrieved by unprivileged users */
6293 },
b2e1b302
LR		 6294 {
6295 .cmd = NL80211_CMD_SET_REG,
6296 .doit = nl80211_set_reg,
6297 .policy = nl80211_policy,
6298 .flags = GENL_ADMIN_PERM,
6299 },
6300 {
6301 .cmd = NL80211_CMD_REQ_SET_REG,
6302 .doit = nl80211_req_set_reg,
6303 .policy = nl80211_policy,
93da9cc1 6304 .flags = GENL_ADMIN_PERM,
6305 },
6306 {
24bdd9f4
JC		 6307 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6308 .doit = nl80211_get_mesh_config,
93da9cc1 6309 .policy = nl80211_policy,
6310 /* can be retrieved by unprivileged users */
4c476991
JB		 6311 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6312 NL80211_FLAG_NEED_RTNL,
93da9cc1 6313 },
6314 {
24bdd9f4
JC		 6315 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6316 .doit = nl80211_update_mesh_config,
93da9cc1 6317 .policy = nl80211_policy,
9aed3cc1 6318 .flags = GENL_ADMIN_PERM,
29cbe68c 6319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6320 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6321 },
2a519311
JB		 6322 {
6323 .cmd = NL80211_CMD_TRIGGER_SCAN,
6324 .doit = nl80211_trigger_scan,
6325 .policy = nl80211_policy,
6326 .flags = GENL_ADMIN_PERM,
41265714 6327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6328 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6329 },
6330 {
6331 .cmd = NL80211_CMD_GET_SCAN,
6332 .policy = nl80211_policy,
6333 .dumpit = nl80211_dump_scan,
6334 },
807f8a8c
LC		 6335 {
6336 .cmd = NL80211_CMD_START_SCHED_SCAN,
6337 .doit = nl80211_start_sched_scan,
6338 .policy = nl80211_policy,
6339 .flags = GENL_ADMIN_PERM,
6340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6341 NL80211_FLAG_NEED_RTNL,
6342 },
6343 {
6344 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6345 .doit = nl80211_stop_sched_scan,
6346 .policy = nl80211_policy,
6347 .flags = GENL_ADMIN_PERM,
6348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6349 NL80211_FLAG_NEED_RTNL,
6350 },
636a5d36
JM		 6351 {
6352 .cmd = NL80211_CMD_AUTHENTICATE,
6353 .doit = nl80211_authenticate,
6354 .policy = nl80211_policy,
6355 .flags = GENL_ADMIN_PERM,
41265714 6356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6357 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6358 },
6359 {
6360 .cmd = NL80211_CMD_ASSOCIATE,
6361 .doit = nl80211_associate,
6362 .policy = nl80211_policy,
6363 .flags = GENL_ADMIN_PERM,
41265714 6364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6365 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6366 },
6367 {
6368 .cmd = NL80211_CMD_DEAUTHENTICATE,
6369 .doit = nl80211_deauthenticate,
6370 .policy = nl80211_policy,
6371 .flags = GENL_ADMIN_PERM,
41265714 6372 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6373 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6374 },
6375 {
6376 .cmd = NL80211_CMD_DISASSOCIATE,
6377 .doit = nl80211_disassociate,
6378 .policy = nl80211_policy,
6379 .flags = GENL_ADMIN_PERM,
41265714 6380 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6381 NL80211_FLAG_NEED_RTNL,
636a5d36 6382 },
04a773ad
JB		 6383 {
6384 .cmd = NL80211_CMD_JOIN_IBSS,
6385 .doit = nl80211_join_ibss,
6386 .policy = nl80211_policy,
6387 .flags = GENL_ADMIN_PERM,
41265714 6388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6389 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6390 },
6391 {
6392 .cmd = NL80211_CMD_LEAVE_IBSS,
6393 .doit = nl80211_leave_ibss,
6394 .policy = nl80211_policy,
6395 .flags = GENL_ADMIN_PERM,
41265714 6396 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6397 NL80211_FLAG_NEED_RTNL,
04a773ad 6398 },
aff89a9b
JB		 6399#ifdef CONFIG_NL80211_TESTMODE
6400 {
6401 .cmd = NL80211_CMD_TESTMODE,
6402 .doit = nl80211_testmode_do,
71063f0e 6403 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6404 .policy = nl80211_policy,
6405 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6406 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6407 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6408 },
6409#endif
b23aa676
SO		 6410 {
6411 .cmd = NL80211_CMD_CONNECT,
6412 .doit = nl80211_connect,
6413 .policy = nl80211_policy,
6414 .flags = GENL_ADMIN_PERM,
41265714 6415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6416 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6417 },
6418 {
6419 .cmd = NL80211_CMD_DISCONNECT,
6420 .doit = nl80211_disconnect,
6421 .policy = nl80211_policy,
6422 .flags = GENL_ADMIN_PERM,
41265714 6423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6424 NL80211_FLAG_NEED_RTNL,
b23aa676 6425 },
463d0183
JB		 6426 {
6427 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6428 .doit = nl80211_wiphy_netns,
6429 .policy = nl80211_policy,
6430 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6431 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6432 NL80211_FLAG_NEED_RTNL,
463d0183 6433 },
61fa713c
HS		 6434 {
6435 .cmd = NL80211_CMD_GET_SURVEY,
6436 .policy = nl80211_policy,
6437 .dumpit = nl80211_dump_survey,
6438 },
67fbb16b
SO		 6439 {
6440 .cmd = NL80211_CMD_SET_PMKSA,
6441 .doit = nl80211_setdel_pmksa,
6442 .policy = nl80211_policy,
6443 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6444 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6445 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6446 },
6447 {
6448 .cmd = NL80211_CMD_DEL_PMKSA,
6449 .doit = nl80211_setdel_pmksa,
6450 .policy = nl80211_policy,
6451 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6452 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6453 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6454 },
6455 {
6456 .cmd = NL80211_CMD_FLUSH_PMKSA,
6457 .doit = nl80211_flush_pmksa,
6458 .policy = nl80211_policy,
6459 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6460 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6461 NL80211_FLAG_NEED_RTNL,
67fbb16b 6462 },
9588bbd5
JM		 6463 {
6464 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6465 .doit = nl80211_remain_on_channel,
6466 .policy = nl80211_policy,
6467 .flags = GENL_ADMIN_PERM,
41265714 6468 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6469 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6470 },
6471 {
6472 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6473 .doit = nl80211_cancel_remain_on_channel,
6474 .policy = nl80211_policy,
6475 .flags = GENL_ADMIN_PERM,
41265714 6476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6477 NL80211_FLAG_NEED_RTNL,
9588bbd5 6478 },
13ae75b1
JM		 6479 {
6480 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6481 .doit = nl80211_set_tx_bitrate_mask,
6482 .policy = nl80211_policy,
6483 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6484 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6485 NL80211_FLAG_NEED_RTNL,
13ae75b1 6486 },
026331c4 6487 {
2e161f78
JB		 6488 .cmd = NL80211_CMD_REGISTER_FRAME,
6489 .doit = nl80211_register_mgmt,
026331c4
JM		 6490 .policy = nl80211_policy,
6491 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6492 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6493 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6494 },
6495 {
2e161f78
JB		 6496 .cmd = NL80211_CMD_FRAME,
6497 .doit = nl80211_tx_mgmt,
026331c4 6498 .policy = nl80211_policy,
f7ca38df
JB		 6499 .flags = GENL_ADMIN_PERM,
6500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6501 NL80211_FLAG_NEED_RTNL,
6502 },
6503 {
6504 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6505 .doit = nl80211_tx_mgmt_cancel_wait,
6506 .policy = nl80211_policy,
026331c4 6507 .flags = GENL_ADMIN_PERM,
41265714 6508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6509 NL80211_FLAG_NEED_RTNL,
026331c4 6510 },
ffb9eb3d
KV		 6511 {
6512 .cmd = NL80211_CMD_SET_POWER_SAVE,
6513 .doit = nl80211_set_power_save,
6514 .policy = nl80211_policy,
6515 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6516 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6517 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6518 },
6519 {
6520 .cmd = NL80211_CMD_GET_POWER_SAVE,
6521 .doit = nl80211_get_power_save,
6522 .policy = nl80211_policy,
6523 /* can be retrieved by unprivileged users */
4c476991
JB		 6524 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6525 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6526 },
d6dc1a38
JO		 6527 {
6528 .cmd = NL80211_CMD_SET_CQM,
6529 .doit = nl80211_set_cqm,
6530 .policy = nl80211_policy,
6531 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6532 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6533 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6534 },
f444de05
JB		 6535 {
6536 .cmd = NL80211_CMD_SET_CHANNEL,
6537 .doit = nl80211_set_channel,
6538 .policy = nl80211_policy,
6539 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6540 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6541 NL80211_FLAG_NEED_RTNL,
f444de05 6542 },
e8347eba
BJ		 6543 {
6544 .cmd = NL80211_CMD_SET_WDS_PEER,
6545 .doit = nl80211_set_wds_peer,
6546 .policy = nl80211_policy,
6547 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6548 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6549 NL80211_FLAG_NEED_RTNL,
e8347eba 6550 },
29cbe68c
JB		 6551 {
6552 .cmd = NL80211_CMD_JOIN_MESH,
6553 .doit = nl80211_join_mesh,
6554 .policy = nl80211_policy,
6555 .flags = GENL_ADMIN_PERM,
6556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6557 NL80211_FLAG_NEED_RTNL,
6558 },
6559 {
6560 .cmd = NL80211_CMD_LEAVE_MESH,
6561 .doit = nl80211_leave_mesh,
6562 .policy = nl80211_policy,
6563 .flags = GENL_ADMIN_PERM,
6564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6565 NL80211_FLAG_NEED_RTNL,
6566 },
ff1b6e69
JB		 6567 {
6568 .cmd = NL80211_CMD_GET_WOWLAN,
6569 .doit = nl80211_get_wowlan,
6570 .policy = nl80211_policy,
6571 /* can be retrieved by unprivileged users */
6572 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6573 NL80211_FLAG_NEED_RTNL,
6574 },
6575 {
6576 .cmd = NL80211_CMD_SET_WOWLAN,
6577 .doit = nl80211_set_wowlan,
6578 .policy = nl80211_policy,
6579 .flags = GENL_ADMIN_PERM,
6580 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6581 NL80211_FLAG_NEED_RTNL,
6582 },
e5497d76
JB		 6583 {
6584 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6585 .doit = nl80211_set_rekey_data,
6586 .policy = nl80211_policy,
6587 .flags = GENL_ADMIN_PERM,
6588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6589 NL80211_FLAG_NEED_RTNL,
6590 },
109086ce
AN		 6591 {
6592 .cmd = NL80211_CMD_TDLS_MGMT,
6593 .doit = nl80211_tdls_mgmt,
6594 .policy = nl80211_policy,
6595 .flags = GENL_ADMIN_PERM,
6596 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6597 NL80211_FLAG_NEED_RTNL,
6598 },
6599 {
6600 .cmd = NL80211_CMD_TDLS_OPER,
6601 .doit = nl80211_tdls_oper,
6602 .policy = nl80211_policy,
6603 .flags = GENL_ADMIN_PERM,
6604 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6605 NL80211_FLAG_NEED_RTNL,
6606 },
28946da7
JB		 6607 {
6608 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6609 .doit = nl80211_register_unexpected_frame,
6610 .policy = nl80211_policy,
6611 .flags = GENL_ADMIN_PERM,
6612 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6613 NL80211_FLAG_NEED_RTNL,
6614 },
7f6cf311
JB		 6615 {
6616 .cmd = NL80211_CMD_PROBE_CLIENT,
6617 .doit = nl80211_probe_client,
6618 .policy = nl80211_policy,
6619 .flags = GENL_ADMIN_PERM,
6620 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6621 NL80211_FLAG_NEED_RTNL,
6622 },
5e760230
JB		 6623 {
6624 .cmd = NL80211_CMD_REGISTER_BEACONS,
6625 .doit = nl80211_register_beacons,
6626 .policy = nl80211_policy,
6627 .flags = GENL_ADMIN_PERM,
6628 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6629 NL80211_FLAG_NEED_RTNL,
6630 },
1d9d9213
SW		 6631 {
6632 .cmd = NL80211_CMD_SET_NOACK_MAP,
6633 .doit = nl80211_set_noack_map,
6634 .policy = nl80211_policy,
6635 .flags = GENL_ADMIN_PERM,
6636 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6637 NL80211_FLAG_NEED_RTNL,
6638 },
6639
55682965 6640};
9588bbd5 6641
6039f6d2
JM		 6642static struct genl_multicast_group nl80211_mlme_mcgrp = {
6643 .name = "mlme",
6644};
55682965
JB		 6645
6646/* multicast groups */
6647static struct genl_multicast_group nl80211_config_mcgrp = {
6648 .name = "config",
6649};
2a519311
JB		 6650static struct genl_multicast_group nl80211_scan_mcgrp = {
6651 .name = "scan",
6652};
73d54c9e
LR		 6653static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6654 .name = "regulatory",
6655};
55682965
JB		 6656
6657/* notification functions */
6658
6659void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6660{
6661 struct sk_buff *msg;
6662
fd2120ca 6663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6664 if (!msg)
6665 return;
6666
6667 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6668 nlmsg_free(msg);
6669 return;
6670 }
6671
463d0183
JB		 6672 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6673 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6674}
6675
362a415d
JB		 6676static int nl80211_add_scan_req(struct sk_buff *msg,
6677 struct cfg80211_registered_device *rdev)
6678{
6679 struct cfg80211_scan_request *req = rdev->scan_req;
6680 struct nlattr *nest;
6681 int i;
6682
667503dd
JB		 6683 ASSERT_RDEV_LOCK(rdev);
6684
362a415d
JB		 6685 if (WARN_ON(!req))
6686 return 0;
6687
6688 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6689 if (!nest)
6690 goto nla_put_failure;
6691 for (i = 0; i < req->n_ssids; i++)
6692 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6693 nla_nest_end(msg, nest);
6694
6695 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6696 if (!nest)
6697 goto nla_put_failure;
6698 for (i = 0; i < req->n_channels; i++)
6699 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6700 nla_nest_end(msg, nest);
6701
6702 if (req->ie)
6703 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6704
6705 return 0;
6706 nla_put_failure:
6707 return -ENOBUFS;
6708}
6709
a538e2d5
JB		 6710static int nl80211_send_scan_msg(struct sk_buff *msg,
6711 struct cfg80211_registered_device *rdev,
6712 struct net_device *netdev,
6713 u32 pid, u32 seq, int flags,
6714 u32 cmd)
2a519311
JB		 6715{
6716 void *hdr;
6717
6718 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6719 if (!hdr)
6720 return -1;
6721
b5850a7a 6722 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6723 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6724
362a415d
JB		 6725 /* ignore errors and send incomplete event anyway */
6726 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6727
6728 return genlmsg_end(msg, hdr);
6729
6730 nla_put_failure:
6731 genlmsg_cancel(msg, hdr);
6732 return -EMSGSIZE;
6733}
6734
807f8a8c
LC		 6735static int
6736nl80211_send_sched_scan_msg(struct sk_buff *msg,
6737 struct cfg80211_registered_device *rdev,
6738 struct net_device *netdev,
6739 u32 pid, u32 seq, int flags, u32 cmd)
6740{
6741 void *hdr;
6742
6743 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6744 if (!hdr)
6745 return -1;
6746
6747 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6748 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6749
6750 return genlmsg_end(msg, hdr);
6751
6752 nla_put_failure:
6753 genlmsg_cancel(msg, hdr);
6754 return -EMSGSIZE;
6755}
6756
a538e2d5
JB		 6757void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6758 struct net_device *netdev)
6759{
6760 struct sk_buff *msg;
6761
6762 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6763 if (!msg)
6764 return;
6765
6766 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6767 NL80211_CMD_TRIGGER_SCAN) < 0) {
6768 nlmsg_free(msg);
6769 return;
6770 }
6771
463d0183
JB		 6772 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6773 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6774}
6775
2a519311
JB		 6776void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6777 struct net_device *netdev)
6778{
6779 struct sk_buff *msg;
6780
fd2120ca 6781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6782 if (!msg)
6783 return;
6784
a538e2d5
JB		 6785 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6786 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6787 nlmsg_free(msg);
6788 return;
6789 }
6790
463d0183
JB		 6791 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6792 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6793}
6794
6795void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6796 struct net_device *netdev)
6797{
6798 struct sk_buff *msg;
6799
fd2120ca 6800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6801 if (!msg)
6802 return;
6803
a538e2d5
JB		 6804 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6805 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6806 nlmsg_free(msg);
6807 return;
6808 }
6809
463d0183
JB		 6810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6811 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6812}
6813
807f8a8c
LC		 6814void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6815 struct net_device *netdev)
6816{
6817 struct sk_buff *msg;
6818
6819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6820 if (!msg)
6821 return;
6822
6823 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6824 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6825 nlmsg_free(msg);
6826 return;
6827 }
6828
6829 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6830 nl80211_scan_mcgrp.id, GFP_KERNEL);
6831}
6832
6833void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6834 struct net_device *netdev, u32 cmd)
6835{
6836 struct sk_buff *msg;
6837
6838 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6839 if (!msg)
6840 return;
6841
6842 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6843 nlmsg_free(msg);
6844 return;
6845 }
6846
6847 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6848 nl80211_scan_mcgrp.id, GFP_KERNEL);
6849}
6850
73d54c9e
LR		 6851/*
6852 * This can happen on global regulatory changes or device specific settings
6853 * based on custom world regulatory domains.
6854 */
6855void nl80211_send_reg_change_event(struct regulatory_request *request)
6856{
6857 struct sk_buff *msg;
6858 void *hdr;
6859
fd2120ca 6860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6861 if (!msg)
6862 return;
6863
6864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6865 if (!hdr) {
6866 nlmsg_free(msg);
6867 return;
6868 }
6869
6870 /* Userspace can always count this one always being set */
6871 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6872
6873 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6874 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6875 NL80211_REGDOM_TYPE_WORLD);
6876 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6877 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6878 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6879 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6880 request->intersect)
6881 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6882 NL80211_REGDOM_TYPE_INTERSECTION);
6883 else {
6884 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6885 NL80211_REGDOM_TYPE_COUNTRY);
6886 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6887 }
6888
6889 if (wiphy_idx_valid(request->wiphy_idx))
6890 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6891
3b7b72ee 6892 genlmsg_end(msg, hdr);
73d54c9e 6893
bc43b28c 6894 rcu_read_lock();
463d0183 6895 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6896 GFP_ATOMIC);
6897 rcu_read_unlock();
73d54c9e
LR		 6898
6899 return;
6900
6901nla_put_failure:
6902 genlmsg_cancel(msg, hdr);
6903 nlmsg_free(msg);
6904}
6905
6039f6d2
JM		 6906static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6907 struct net_device *netdev,
6908 const u8 *buf, size_t len,
e6d6e342 6909 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6910{
6911 struct sk_buff *msg;
6912 void *hdr;
6913
e6d6e342 6914 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6915 if (!msg)
6916 return;
6917
6918 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6919 if (!hdr) {
6920 nlmsg_free(msg);
6921 return;
6922 }
6923
6924 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6925 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6926 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6927
3b7b72ee 6928 genlmsg_end(msg, hdr);
6039f6d2 6929
463d0183
JB		 6930 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6931 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6932 return;
6933
6934 nla_put_failure:
6935 genlmsg_cancel(msg, hdr);
6936 nlmsg_free(msg);
6937}
6938
6939void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6940 struct net_device *netdev, const u8 *buf,
6941 size_t len, gfp_t gfp)
6039f6d2
JM		 6942{
6943 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6944 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6945}
6946
6947void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6948 struct net_device *netdev, const u8 *buf,
e6d6e342 6949 size_t len, gfp_t gfp)
6039f6d2 6950{
e6d6e342
JB		 6951 nl80211_send_mlme_event(rdev, netdev, buf, len,
6952 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6953}
6954
53b46b84 6955void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6956 struct net_device *netdev, const u8 *buf,
6957 size_t len, gfp_t gfp)
6039f6d2
JM		 6958{
6959 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6960 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6961}
6962
53b46b84
JM		 6963void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6964 struct net_device *netdev, const u8 *buf,
e6d6e342 6965 size_t len, gfp_t gfp)
6039f6d2
JM		 6966{
6967 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6968 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6969}
6970
cf4e594e
JM		 6971void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6972 struct net_device *netdev, const u8 *buf,
6973 size_t len, gfp_t gfp)
6974{
6975 nl80211_send_mlme_event(rdev, netdev, buf, len,
6976 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6977}
6978
6979void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6980 struct net_device *netdev, const u8 *buf,
6981 size_t len, gfp_t gfp)
6982{
6983 nl80211_send_mlme_event(rdev, netdev, buf, len,
6984 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6985}
6986
1b06bb40
LR		 6987static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6988 struct net_device *netdev, int cmd,
e6d6e342 6989 const u8 *addr, gfp_t gfp)
1965c853
JM		 6990{
6991 struct sk_buff *msg;
6992 void *hdr;
6993
e6d6e342 6994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6995 if (!msg)
6996 return;
6997
6998 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6999 if (!hdr) {
7000 nlmsg_free(msg);
7001 return;
7002 }
7003
7004 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7005 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7006 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7007 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7008
3b7b72ee 7009 genlmsg_end(msg, hdr);
1965c853 7010
463d0183
JB		 7011 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7012 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7013 return;
7014
7015 nla_put_failure:
7016 genlmsg_cancel(msg, hdr);
7017 nlmsg_free(msg);
7018}
7019
7020void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7021 struct net_device *netdev, const u8 *addr,
7022 gfp_t gfp)
1965c853
JM		 7023{
7024 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7025 addr, gfp);
1965c853
JM		 7026}
7027
7028void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7029 struct net_device *netdev, const u8 *addr,
7030 gfp_t gfp)
1965c853 7031{
e6d6e342
JB		 7032 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7033 addr, gfp);
1965c853
JM		 7034}
7035
b23aa676
SO		 7036void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7037 struct net_device *netdev, const u8 *bssid,
7038 const u8 *req_ie, size_t req_ie_len,
7039 const u8 *resp_ie, size_t resp_ie_len,
7040 u16 status, gfp_t gfp)
7041{
7042 struct sk_buff *msg;
7043 void *hdr;
7044
7045 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7046 if (!msg)
7047 return;
7048
7049 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7050 if (!hdr) {
7051 nlmsg_free(msg);
7052 return;
7053 }
7054
7055 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7056 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7057 if (bssid)
7058 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7059 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7060 if (req_ie)
7061 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7062 if (resp_ie)
7063 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7064
3b7b72ee 7065 genlmsg_end(msg, hdr);
b23aa676 7066
463d0183
JB		 7067 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7068 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7069 return;
7070
7071 nla_put_failure:
7072 genlmsg_cancel(msg, hdr);
7073 nlmsg_free(msg);
7074
7075}
7076
7077void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7078 struct net_device *netdev, const u8 *bssid,
7079 const u8 *req_ie, size_t req_ie_len,
7080 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7081{
7082 struct sk_buff *msg;
7083 void *hdr;
7084
7085 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7086 if (!msg)
7087 return;
7088
7089 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7090 if (!hdr) {
7091 nlmsg_free(msg);
7092 return;
7093 }
7094
7095 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7096 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7097 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7098 if (req_ie)
7099 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7100 if (resp_ie)
7101 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7102
3b7b72ee 7103 genlmsg_end(msg, hdr);
b23aa676 7104
463d0183
JB		 7105 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7106 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7107 return;
7108
7109 nla_put_failure:
7110 genlmsg_cancel(msg, hdr);
7111 nlmsg_free(msg);
7112
7113}
7114
7115void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7116 struct net_device *netdev, u16 reason,
667503dd 7117 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7118{
7119 struct sk_buff *msg;
7120 void *hdr;
7121
667503dd 7122 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7123 if (!msg)
7124 return;
7125
7126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7127 if (!hdr) {
7128 nlmsg_free(msg);
7129 return;
7130 }
7131
7132 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7133 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7134 if (from_ap && reason)
7135 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7136 if (from_ap)
7137 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7138 if (ie)
7139 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7140
3b7b72ee 7141 genlmsg_end(msg, hdr);
b23aa676 7142
463d0183
JB		 7143 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7144 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7145 return;
7146
7147 nla_put_failure:
7148 genlmsg_cancel(msg, hdr);
7149 nlmsg_free(msg);
7150
7151}
7152
04a773ad
JB		 7153void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7154 struct net_device *netdev, const u8 *bssid,
7155 gfp_t gfp)
7156{
7157 struct sk_buff *msg;
7158 void *hdr;
7159
fd2120ca 7160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7161 if (!msg)
7162 return;
7163
7164 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7165 if (!hdr) {
7166 nlmsg_free(msg);
7167 return;
7168 }
7169
7170 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7172 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7173
3b7b72ee 7174 genlmsg_end(msg, hdr);
04a773ad 7175
463d0183
JB		 7176 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7177 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7178 return;
7179
7180 nla_put_failure:
7181 genlmsg_cancel(msg, hdr);
7182 nlmsg_free(msg);
7183}
7184
c93b5e71
JC		 7185void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7186 struct net_device *netdev,
7187 const u8 *macaddr, const u8* ie, u8 ie_len,
7188 gfp_t gfp)
7189{
7190 struct sk_buff *msg;
7191 void *hdr;
7192
7193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7194 if (!msg)
7195 return;
7196
7197 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7198 if (!hdr) {
7199 nlmsg_free(msg);
7200 return;
7201 }
7202
7203 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7204 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7205 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7206 if (ie_len && ie)
7207 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7208
3b7b72ee 7209 genlmsg_end(msg, hdr);
c93b5e71
JC		 7210
7211 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7212 nl80211_mlme_mcgrp.id, gfp);
7213 return;
7214
7215 nla_put_failure:
7216 genlmsg_cancel(msg, hdr);
7217 nlmsg_free(msg);
7218}
7219
a3b8b056
JM		 7220void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7221 struct net_device *netdev, const u8 *addr,
7222 enum nl80211_key_type key_type, int key_id,
e6d6e342 7223 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7224{
7225 struct sk_buff *msg;
7226 void *hdr;
7227
e6d6e342 7228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7229 if (!msg)
7230 return;
7231
7232 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7233 if (!hdr) {
7234 nlmsg_free(msg);
7235 return;
7236 }
7237
7238 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7239 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7240 if (addr)
7241 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7242 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7243 if (key_id != -1)
7244 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7245 if (tsc)
7246 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7247
3b7b72ee 7248 genlmsg_end(msg, hdr);
a3b8b056 7249
463d0183
JB		 7250 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7251 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7252 return;
7253
7254 nla_put_failure:
7255 genlmsg_cancel(msg, hdr);
7256 nlmsg_free(msg);
7257}
7258
6bad8766
LR		 7259void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7260 struct ieee80211_channel *channel_before,
7261 struct ieee80211_channel *channel_after)
7262{
7263 struct sk_buff *msg;
7264 void *hdr;
7265 struct nlattr *nl_freq;
7266
fd2120ca 7267 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7268 if (!msg)
7269 return;
7270
7271 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7272 if (!hdr) {
7273 nlmsg_free(msg);
7274 return;
7275 }
7276
7277 /*
7278 * Since we are applying the beacon hint to a wiphy we know its
7279 * wiphy_idx is valid
7280 */
7281 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7282
7283 /* Before */
7284 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7285 if (!nl_freq)
7286 goto nla_put_failure;
7287 if (nl80211_msg_put_channel(msg, channel_before))
7288 goto nla_put_failure;
7289 nla_nest_end(msg, nl_freq);
7290
7291 /* After */
7292 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7293 if (!nl_freq)
7294 goto nla_put_failure;
7295 if (nl80211_msg_put_channel(msg, channel_after))
7296 goto nla_put_failure;
7297 nla_nest_end(msg, nl_freq);
7298
3b7b72ee 7299 genlmsg_end(msg, hdr);
6bad8766 7300
463d0183
JB		 7301 rcu_read_lock();
7302 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7303 GFP_ATOMIC);
7304 rcu_read_unlock();
6bad8766
LR		 7305
7306 return;
7307
7308nla_put_failure:
7309 genlmsg_cancel(msg, hdr);
7310 nlmsg_free(msg);
7311}
7312
9588bbd5
JM		 7313static void nl80211_send_remain_on_chan_event(
7314 int cmd, struct cfg80211_registered_device *rdev,
7315 struct net_device *netdev, u64 cookie,
7316 struct ieee80211_channel *chan,
7317 enum nl80211_channel_type channel_type,
7318 unsigned int duration, gfp_t gfp)
7319{
7320 struct sk_buff *msg;
7321 void *hdr;
7322
7323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7324 if (!msg)
7325 return;
7326
7327 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7328 if (!hdr) {
7329 nlmsg_free(msg);
7330 return;
7331 }
7332
7333 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7334 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7335 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7336 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7337 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7338
7339 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7340 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7341
3b7b72ee 7342 genlmsg_end(msg, hdr);
9588bbd5
JM		 7343
7344 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7345 nl80211_mlme_mcgrp.id, gfp);
7346 return;
7347
7348 nla_put_failure:
7349 genlmsg_cancel(msg, hdr);
7350 nlmsg_free(msg);
7351}
7352
7353void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7354 struct net_device *netdev, u64 cookie,
7355 struct ieee80211_channel *chan,
7356 enum nl80211_channel_type channel_type,
7357 unsigned int duration, gfp_t gfp)
7358{
7359 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7360 rdev, netdev, cookie, chan,
7361 channel_type, duration, gfp);
7362}
7363
7364void nl80211_send_remain_on_channel_cancel(
7365 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7366 u64 cookie, struct ieee80211_channel *chan,
7367 enum nl80211_channel_type channel_type, gfp_t gfp)
7368{
7369 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7370 rdev, netdev, cookie, chan,
7371 channel_type, 0, gfp);
7372}
7373
98b62183
JB		 7374void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7375 struct net_device *dev, const u8 *mac_addr,
7376 struct station_info *sinfo, gfp_t gfp)
7377{
7378 struct sk_buff *msg;
7379
7380 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7381 if (!msg)
7382 return;
7383
7384 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7385 nlmsg_free(msg);
7386 return;
7387 }
7388
7389 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7390 nl80211_mlme_mcgrp.id, gfp);
7391}
7392
ec15e68b
JM		 7393void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7394 struct net_device *dev, const u8 *mac_addr,
7395 gfp_t gfp)
7396{
7397 struct sk_buff *msg;
7398 void *hdr;
7399
7400 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7401 if (!msg)
7402 return;
7403
7404 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7405 if (!hdr) {
7406 nlmsg_free(msg);
7407 return;
7408 }
7409
7410 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7411 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7412
3b7b72ee 7413 genlmsg_end(msg, hdr);
ec15e68b
JM		 7414
7415 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7416 nl80211_mlme_mcgrp.id, gfp);
7417 return;
7418
7419 nla_put_failure:
7420 genlmsg_cancel(msg, hdr);
7421 nlmsg_free(msg);
7422}
7423
b92ab5d8
JB		 7424static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7425 const u8 *addr, gfp_t gfp)
28946da7
JB		 7426{
7427 struct wireless_dev *wdev = dev->ieee80211_ptr;
7428 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7429 struct sk_buff *msg;
7430 void *hdr;
7431 int err;
7432 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7433
7434 if (!nlpid)
7435 return false;
7436
7437 msg = nlmsg_new(100, gfp);
7438 if (!msg)
7439 return true;
7440
b92ab5d8 7441 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7442 if (!hdr) {
7443 nlmsg_free(msg);
7444 return true;
7445 }
7446
7447 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7448 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7449 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7450
7451 err = genlmsg_end(msg, hdr);
7452 if (err < 0) {
7453 nlmsg_free(msg);
7454 return true;
7455 }
7456
7457 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7458 return true;
7459
7460 nla_put_failure:
7461 genlmsg_cancel(msg, hdr);
7462 nlmsg_free(msg);
7463 return true;
7464}
7465
b92ab5d8
JB		 7466bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7467{
7468 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7469 addr, gfp);
7470}
7471
7472bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7473 const u8 *addr, gfp_t gfp)
7474{
7475 return __nl80211_unexpected_frame(dev,
7476 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7477 addr, gfp);
7478}
7479
2e161f78
JB		 7480int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7481 struct net_device *netdev, u32 nlpid,
7482 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7483{
7484 struct sk_buff *msg;
7485 void *hdr;
026331c4
JM		 7486
7487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7488 if (!msg)
7489 return -ENOMEM;
7490
2e161f78 7491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7492 if (!hdr) {
7493 nlmsg_free(msg);
7494 return -ENOMEM;
7495 }
7496
7497 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7500 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7501
3b7b72ee 7502 genlmsg_end(msg, hdr);
026331c4 7503
3b7b72ee 7504 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7505
7506 nla_put_failure:
7507 genlmsg_cancel(msg, hdr);
7508 nlmsg_free(msg);
7509 return -ENOBUFS;
7510}
7511
2e161f78
JB		 7512void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7513 struct net_device *netdev, u64 cookie,
7514 const u8 *buf, size_t len, bool ack,
7515 gfp_t gfp)
026331c4
JM		 7516{
7517 struct sk_buff *msg;
7518 void *hdr;
7519
7520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7521 if (!msg)
7522 return;
7523
2e161f78 7524 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7525 if (!hdr) {
7526 nlmsg_free(msg);
7527 return;
7528 }
7529
7530 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7531 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7532 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7533 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7534 if (ack)
7535 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7536
3b7b72ee 7537 genlmsg_end(msg, hdr);
026331c4
JM		 7538
7539 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7540 return;
7541
7542 nla_put_failure:
7543 genlmsg_cancel(msg, hdr);
7544 nlmsg_free(msg);
7545}
7546
d6dc1a38
JO		 7547void
7548nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7549 struct net_device *netdev,
7550 enum nl80211_cqm_rssi_threshold_event rssi_event,
7551 gfp_t gfp)
7552{
7553 struct sk_buff *msg;
7554 struct nlattr *pinfoattr;
7555 void *hdr;
7556
7557 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7558 if (!msg)
7559 return;
7560
7561 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7562 if (!hdr) {
7563 nlmsg_free(msg);
7564 return;
7565 }
7566
7567 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7569
7570 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7571 if (!pinfoattr)
7572 goto nla_put_failure;
7573
7574 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7575 rssi_event);
7576
7577 nla_nest_end(msg, pinfoattr);
7578
3b7b72ee 7579 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7580
7581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7582 nl80211_mlme_mcgrp.id, gfp);
7583 return;
7584
7585 nla_put_failure:
7586 genlmsg_cancel(msg, hdr);
7587 nlmsg_free(msg);
7588}
7589
e5497d76
JB		 7590void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7591 struct net_device *netdev, const u8 *bssid,
7592 const u8 *replay_ctr, gfp_t gfp)
7593{
7594 struct sk_buff *msg;
7595 struct nlattr *rekey_attr;
7596 void *hdr;
7597
7598 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7599 if (!msg)
7600 return;
7601
7602 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7603 if (!hdr) {
7604 nlmsg_free(msg);
7605 return;
7606 }
7607
7608 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7609 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7610 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7611
7612 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7613 if (!rekey_attr)
7614 goto nla_put_failure;
7615
7616 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7617 NL80211_REPLAY_CTR_LEN, replay_ctr);
7618
7619 nla_nest_end(msg, rekey_attr);
7620
3b7b72ee 7621 genlmsg_end(msg, hdr);
e5497d76
JB		 7622
7623 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7624 nl80211_mlme_mcgrp.id, gfp);
7625 return;
7626
7627 nla_put_failure:
7628 genlmsg_cancel(msg, hdr);
7629 nlmsg_free(msg);
7630}
7631
c9df56b4
JM		 7632void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7633 struct net_device *netdev, int index,
7634 const u8 *bssid, bool preauth, gfp_t gfp)
7635{
7636 struct sk_buff *msg;
7637 struct nlattr *attr;
7638 void *hdr;
7639
7640 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7641 if (!msg)
7642 return;
7643
7644 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7645 if (!hdr) {
7646 nlmsg_free(msg);
7647 return;
7648 }
7649
7650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7651 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7652
7653 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7654 if (!attr)
7655 goto nla_put_failure;
7656
7657 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7658 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7659 if (preauth)
7660 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7661
7662 nla_nest_end(msg, attr);
7663
3b7b72ee 7664 genlmsg_end(msg, hdr);
c9df56b4
JM		 7665
7666 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7667 nl80211_mlme_mcgrp.id, gfp);
7668 return;
7669
7670 nla_put_failure:
7671 genlmsg_cancel(msg, hdr);
7672 nlmsg_free(msg);
7673}
7674
c063dbf5
JB		 7675void
7676nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7677 struct net_device *netdev, const u8 *peer,
7678 u32 num_packets, gfp_t gfp)
7679{
7680 struct sk_buff *msg;
7681 struct nlattr *pinfoattr;
7682 void *hdr;
7683
7684 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7685 if (!msg)
7686 return;
7687
7688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7689 if (!hdr) {
7690 nlmsg_free(msg);
7691 return;
7692 }
7693
7694 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7695 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7696 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7697
7698 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7699 if (!pinfoattr)
7700 goto nla_put_failure;
7701
7702 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7703
7704 nla_nest_end(msg, pinfoattr);
7705
3b7b72ee 7706 genlmsg_end(msg, hdr);
c063dbf5
JB		 7707
7708 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7709 nl80211_mlme_mcgrp.id, gfp);
7710 return;
7711
7712 nla_put_failure:
7713 genlmsg_cancel(msg, hdr);
7714 nlmsg_free(msg);
7715}
7716
7f6cf311
JB		 7717void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7718 u64 cookie, bool acked, gfp_t gfp)
7719{
7720 struct wireless_dev *wdev = dev->ieee80211_ptr;
7721 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7722 struct sk_buff *msg;
7723 void *hdr;
7724 int err;
7725
7726 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7727 if (!msg)
7728 return;
7729
7730 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7731 if (!hdr) {
7732 nlmsg_free(msg);
7733 return;
7734 }
7735
7736 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7737 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7738 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7739 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7740 if (acked)
7741 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7742
7743 err = genlmsg_end(msg, hdr);
7744 if (err < 0) {
7745 nlmsg_free(msg);
7746 return;
7747 }
7748
7749 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7750 nl80211_mlme_mcgrp.id, gfp);
7751 return;
7752
7753 nla_put_failure:
7754 genlmsg_cancel(msg, hdr);
7755 nlmsg_free(msg);
7756}
7757EXPORT_SYMBOL(cfg80211_probe_status);
7758
5e760230
JB		 7759void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7760 const u8 *frame, size_t len,
7761 int freq, gfp_t gfp)
7762{
7763 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7764 struct sk_buff *msg;
7765 void *hdr;
7766 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7767
7768 if (!nlpid)
7769 return;
7770
7771 msg = nlmsg_new(len + 100, gfp);
7772 if (!msg)
7773 return;
7774
7775 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7776 if (!hdr) {
7777 nlmsg_free(msg);
7778 return;
7779 }
7780
7781 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7782 if (freq)
7783 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7784 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7785
7786 genlmsg_end(msg, hdr);
7787
7788 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7789 return;
7790
7791 nla_put_failure:
7792 genlmsg_cancel(msg, hdr);
7793 nlmsg_free(msg);
7794}
7795EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7796
026331c4
JM		 7797static int nl80211_netlink_notify(struct notifier_block * nb,
7798 unsigned long state,
7799 void *_notify)
7800{
7801 struct netlink_notify *notify = _notify;
7802 struct cfg80211_registered_device *rdev;
7803 struct wireless_dev *wdev;
7804
7805 if (state != NETLINK_URELEASE)
7806 return NOTIFY_DONE;
7807
7808 rcu_read_lock();
7809
5e760230 7810 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7811 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7812 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7813 if (rdev->ap_beacons_nlpid == notify->pid)
7814 rdev->ap_beacons_nlpid = 0;
7815 }
026331c4
JM		 7816
7817 rcu_read_unlock();
7818
7819 return NOTIFY_DONE;
7820}
7821
7822static struct notifier_block nl80211_netlink_notifier = {
7823 .notifier_call = nl80211_netlink_notify,
7824};
7825
55682965
JB		 7826/* initialisation/exit functions */
7827
7828int nl80211_init(void)
7829{
0d63cbb5 7830 int err;
55682965 7831
0d63cbb5
MM		 7832 err = genl_register_family_with_ops(&nl80211_fam,
7833 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7834 if (err)
7835 return err;
7836
55682965
JB		 7837 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7838 if (err)
7839 goto err_out;
7840
2a519311
JB		 7841 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7842 if (err)
7843 goto err_out;
7844
73d54c9e
LR		 7845 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7846 if (err)
7847 goto err_out;
7848
6039f6d2
JM		 7849 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7850 if (err)
7851 goto err_out;
7852
aff89a9b
JB		 7853#ifdef CONFIG_NL80211_TESTMODE
7854 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7855 if (err)
7856 goto err_out;
7857#endif
7858
026331c4
JM		 7859 err = netlink_register_notifier(&nl80211_netlink_notifier);
7860 if (err)
7861 goto err_out;
7862
55682965
JB		 7863 return 0;
7864 err_out:
7865 genl_unregister_family(&nl80211_fam);
7866 return err;
7867}
7868
7869void nl80211_exit(void)
7870{
026331c4 7871 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7872 genl_unregister_family(&nl80211_fam);
7873}
Linux kernel - Deliverables
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