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cfg80211: fix a few -Wshadow warnings
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
73/* policy for the attributes */
b54452b0 74static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 77 .len = 20-1 },
31888487 78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 86
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 90
e007b857
EP		 91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 93
b9454e83 94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 102
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 120
b2e1b302
LR		 121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
123
9f1ba906
JM		 124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
50b12f59 129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 130
24bdd9f4 131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 133
6c739419 134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 135
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 141
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
151 },
3f77316c 152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
205 },
1d9d9213 206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
55682965
JB		 207};
208
e31b8213 209/* policy for the key attributes */
b54452b0 210static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 211 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 212 [NL80211_KEY_IDX] = { .type = NLA_U8 },
213 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 214 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 215 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
216 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 217 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 218 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
219};
220
221/* policy for the key default flags */
222static const struct nla_policy
223nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
224 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
225 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 226};
227
ff1b6e69
JB		 228/* policy for WoWLAN attributes */
229static const struct nla_policy
230nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
231 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
232 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
233 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 235 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
237 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 239};
240
e5497d76
JB		 241/* policy for GTK rekey offload attributes */
242static const struct nla_policy
243nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
244 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
245 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
246 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
247};
248
a1f1c21c
LC		 249static const struct nla_policy
250nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
251 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_SSID_LEN },
253};
254
a043897a
HS		 255/* ifidx get helper */
256static int nl80211_get_ifidx(struct netlink_callback *cb)
257{
258 int res;
259
260 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
261 nl80211_fam.attrbuf, nl80211_fam.maxattr,
262 nl80211_policy);
263 if (res)
264 return res;
265
266 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
267 return -EINVAL;
268
269 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
270 if (!res)
271 return -EINVAL;
272 return res;
273}
274
67748893
JB		 275static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
276 struct netlink_callback *cb,
277 struct cfg80211_registered_device **rdev,
278 struct net_device **dev)
279{
280 int ifidx = cb->args[0];
281 int err;
282
283 if (!ifidx)
284 ifidx = nl80211_get_ifidx(cb);
285 if (ifidx < 0)
286 return ifidx;
287
288 cb->args[0] = ifidx;
289
290 rtnl_lock();
291
292 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
293 if (!*dev) {
294 err = -ENODEV;
295 goto out_rtnl;
296 }
297
298 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 299 if (IS_ERR(*rdev)) {
300 err = PTR_ERR(*rdev);
67748893
JB		 301 goto out_rtnl;
302 }
303
304 return 0;
305 out_rtnl:
306 rtnl_unlock();
307 return err;
308}
309
310static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
311{
312 cfg80211_unlock_rdev(rdev);
313 rtnl_unlock();
314}
315
f4a11bb0
JB		 316/* IE validation */
317static bool is_valid_ie_attr(const struct nlattr *attr)
318{
319 const u8 *pos;
320 int len;
321
322 if (!attr)
323 return true;
324
325 pos = nla_data(attr);
326 len = nla_len(attr);
327
328 while (len) {
329 u8 elemlen;
330
331 if (len < 2)
332 return false;
333 len -= 2;
334
335 elemlen = pos[1];
336 if (elemlen > len)
337 return false;
338
339 len -= elemlen;
340 pos += 2 + elemlen;
341 }
342
343 return true;
344}
345
55682965
JB		 346/* message building helper */
347static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
348 int flags, u8 cmd)
349{
350 /* since there is no private header just add the generic one */
351 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
352}
353
5dab3b8a
LR		 354static int nl80211_msg_put_channel(struct sk_buff *msg,
355 struct ieee80211_channel *chan)
356{
357 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
358 chan->center_freq);
359
360 if (chan->flags & IEEE80211_CHAN_DISABLED)
361 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
362 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
363 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
364 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
365 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
366 if (chan->flags & IEEE80211_CHAN_RADAR)
367 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
368
369 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
370 DBM_TO_MBM(chan->max_power));
371
372 return 0;
373
374 nla_put_failure:
375 return -ENOBUFS;
376}
377
55682965
JB		 378/* netlink command implementations */
379
b9454e83
JB		 380struct key_parse {
381 struct key_params p;
382 int idx;
e31b8213 383 int type;
b9454e83 384 bool def, defmgmt;
dbd2fd65 385 bool def_uni, def_multi;
b9454e83
JB		 386};
387
388static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
389{
390 struct nlattr *tb[NL80211_KEY_MAX + 1];
391 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
392 nl80211_key_policy);
393 if (err)
394 return err;
395
396 k->def = !!tb[NL80211_KEY_DEFAULT];
397 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
398
dbd2fd65
JB		 399 if (k->def) {
400 k->def_uni = true;
401 k->def_multi = true;
402 }
403 if (k->defmgmt)
404 k->def_multi = true;
405
b9454e83
JB		 406 if (tb[NL80211_KEY_IDX])
407 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
408
409 if (tb[NL80211_KEY_DATA]) {
410 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
411 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
412 }
413
414 if (tb[NL80211_KEY_SEQ]) {
415 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
416 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
417 }
418
419 if (tb[NL80211_KEY_CIPHER])
420 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
421
e31b8213
JB		 422 if (tb[NL80211_KEY_TYPE]) {
423 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
424 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
425 return -EINVAL;
426 }
427
dbd2fd65
JB		 428 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
429 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 430 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
431 tb[NL80211_KEY_DEFAULT_TYPES],
432 nl80211_key_default_policy);
dbd2fd65
JB		 433 if (err)
434 return err;
435
436 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
437 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
438 }
439
b9454e83
JB		 440 return 0;
441}
442
443static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
444{
445 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
446 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
447 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
448 }
449
450 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
451 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
452 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
453 }
454
455 if (info->attrs[NL80211_ATTR_KEY_IDX])
456 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
457
458 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
459 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
460
461 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
462 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
463
dbd2fd65
JB		 464 if (k->def) {
465 k->def_uni = true;
466 k->def_multi = true;
467 }
468 if (k->defmgmt)
469 k->def_multi = true;
470
e31b8213
JB		 471 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
472 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
473 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
474 return -EINVAL;
475 }
476
dbd2fd65
JB		 477 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
478 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
479 int err = nla_parse_nested(
480 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
481 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
482 nl80211_key_default_policy);
483 if (err)
484 return err;
485
486 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
487 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
488 }
489
b9454e83
JB		 490 return 0;
491}
492
493static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
494{
495 int err;
496
497 memset(k, 0, sizeof(*k));
498 k->idx = -1;
e31b8213 499 k->type = -1;
b9454e83
JB		 500
501 if (info->attrs[NL80211_ATTR_KEY])
502 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
503 else
504 err = nl80211_parse_key_old(info, k);
505
506 if (err)
507 return err;
508
509 if (k->def && k->defmgmt)
510 return -EINVAL;
511
dbd2fd65
JB		 512 if (k->defmgmt) {
513 if (k->def_uni || !k->def_multi)
514 return -EINVAL;
515 }
516
b9454e83
JB		 517 if (k->idx != -1) {
518 if (k->defmgmt) {
519 if (k->idx < 4 || k->idx > 5)
520 return -EINVAL;
521 } else if (k->def) {
522 if (k->idx < 0 || k->idx > 3)
523 return -EINVAL;
524 } else {
525 if (k->idx < 0 || k->idx > 5)
526 return -EINVAL;
527 }
528 }
529
530 return 0;
531}
532
fffd0934
JB		 533static struct cfg80211_cached_keys *
534nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
535 struct nlattr *keys)
536{
537 struct key_parse parse;
538 struct nlattr *key;
539 struct cfg80211_cached_keys *result;
540 int rem, err, def = 0;
541
542 result = kzalloc(sizeof(*result), GFP_KERNEL);
543 if (!result)
544 return ERR_PTR(-ENOMEM);
545
546 result->def = -1;
547 result->defmgmt = -1;
548
549 nla_for_each_nested(key, keys, rem) {
550 memset(&parse, 0, sizeof(parse));
551 parse.idx = -1;
552
553 err = nl80211_parse_key_new(key, &parse);
554 if (err)
555 goto error;
556 err = -EINVAL;
557 if (!parse.p.key)
558 goto error;
559 if (parse.idx < 0 || parse.idx > 4)
560 goto error;
561 if (parse.def) {
562 if (def)
563 goto error;
564 def = 1;
565 result->def = parse.idx;
dbd2fd65
JB		 566 if (!parse.def_uni || !parse.def_multi)
567 goto error;
fffd0934
JB		 568 } else if (parse.defmgmt)
569 goto error;
570 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 571 parse.idx, false, NULL);
fffd0934
JB		 572 if (err)
573 goto error;
574 result->params[parse.idx].cipher = parse.p.cipher;
575 result->params[parse.idx].key_len = parse.p.key_len;
576 result->params[parse.idx].key = result->data[parse.idx];
577 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
578 }
579
580 return result;
581 error:
582 kfree(result);
583 return ERR_PTR(err);
584}
585
586static int nl80211_key_allowed(struct wireless_dev *wdev)
587{
588 ASSERT_WDEV_LOCK(wdev);
589
fffd0934
JB		 590 switch (wdev->iftype) {
591 case NL80211_IFTYPE_AP:
592 case NL80211_IFTYPE_AP_VLAN:
074ac8df 593 case NL80211_IFTYPE_P2P_GO:
ff973af7 594 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 595 break;
596 case NL80211_IFTYPE_ADHOC:
597 if (!wdev->current_bss)
598 return -ENOLINK;
599 break;
600 case NL80211_IFTYPE_STATION:
074ac8df 601 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 602 if (wdev->sme_state != CFG80211_SME_CONNECTED)
603 return -ENOLINK;
604 break;
605 default:
606 return -EINVAL;
607 }
608
609 return 0;
610}
611
7527a782
JB		 612static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
613{
614 struct nlattr *nl_modes = nla_nest_start(msg, attr);
615 int i;
616
617 if (!nl_modes)
618 goto nla_put_failure;
619
620 i = 0;
621 while (ifmodes) {
622 if (ifmodes & 1)
623 NLA_PUT_FLAG(msg, i);
624 ifmodes >>= 1;
625 i++;
626 }
627
628 nla_nest_end(msg, nl_modes);
629 return 0;
630
631nla_put_failure:
632 return -ENOBUFS;
633}
634
635static int nl80211_put_iface_combinations(struct wiphy *wiphy,
636 struct sk_buff *msg)
637{
638 struct nlattr *nl_combis;
639 int i, j;
640
641 nl_combis = nla_nest_start(msg,
642 NL80211_ATTR_INTERFACE_COMBINATIONS);
643 if (!nl_combis)
644 goto nla_put_failure;
645
646 for (i = 0; i < wiphy->n_iface_combinations; i++) {
647 const struct ieee80211_iface_combination *c;
648 struct nlattr *nl_combi, *nl_limits;
649
650 c = &wiphy->iface_combinations[i];
651
652 nl_combi = nla_nest_start(msg, i + 1);
653 if (!nl_combi)
654 goto nla_put_failure;
655
656 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
657 if (!nl_limits)
658 goto nla_put_failure;
659
660 for (j = 0; j < c->n_limits; j++) {
661 struct nlattr *nl_limit;
662
663 nl_limit = nla_nest_start(msg, j + 1);
664 if (!nl_limit)
665 goto nla_put_failure;
666 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
667 c->limits[j].max);
668 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
669 c->limits[j].types))
670 goto nla_put_failure;
671 nla_nest_end(msg, nl_limit);
672 }
673
674 nla_nest_end(msg, nl_limits);
675
676 if (c->beacon_int_infra_match)
677 NLA_PUT_FLAG(msg,
678 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
679 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
680 c->num_different_channels);
681 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
682 c->max_interfaces);
683
684 nla_nest_end(msg, nl_combi);
685 }
686
687 nla_nest_end(msg, nl_combis);
688
689 return 0;
690nla_put_failure:
691 return -ENOBUFS;
692}
693
55682965
JB		 694static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
695 struct cfg80211_registered_device *dev)
696{
697 void *hdr;
ee688b00
JB		 698 struct nlattr *nl_bands, *nl_band;
699 struct nlattr *nl_freqs, *nl_freq;
700 struct nlattr *nl_rates, *nl_rate;
8fdc621d 701 struct nlattr *nl_cmds;
ee688b00
JB		 702 enum ieee80211_band band;
703 struct ieee80211_channel *chan;
704 struct ieee80211_rate *rate;
705 int i;
2e161f78
JB		 706 const struct ieee80211_txrx_stypes *mgmt_stypes =
707 dev->wiphy.mgmt_stypes;
55682965
JB		 708
709 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
710 if (!hdr)
711 return -1;
712
b5850a7a 713 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 714 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 715
f5ea9120
JB		 716 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
717 cfg80211_rdev_list_generation);
718
b9a5f8ca
JM		 719 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
720 dev->wiphy.retry_short);
721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
722 dev->wiphy.retry_long);
723 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
724 dev->wiphy.frag_threshold);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
726 dev->wiphy.rts_threshold);
81077e82
LT		 727 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
728 dev->wiphy.coverage_class);
2a519311
JB		 729 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
730 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
732 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 733 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
734 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 735 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
736 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 737 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
738 dev->wiphy.max_match_sets);
ee688b00 739
e31b8213
JB		 740 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
741 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 742 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 744 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 746 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 748 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
749 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
750 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
751 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 752
25e47c18
JB		 753 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
754 sizeof(u32) * dev->wiphy.n_cipher_suites,
755 dev->wiphy.cipher_suites);
756
67fbb16b
SO		 757 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
758 dev->wiphy.max_num_pmkids);
759
c0692b8f
JB		 760 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
761 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
762
39fd5de4
BR		 763 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
764 dev->wiphy.available_antennas_tx);
765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
766 dev->wiphy.available_antennas_rx);
767
87bbbe22
AN		 768 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
769 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
770 dev->wiphy.probe_resp_offload);
771
7f531e03
BR		 772 if ((dev->wiphy.available_antennas_tx ||
773 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 774 u32 tx_ant = 0, rx_ant = 0;
775 int res;
776 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
777 if (!res) {
778 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
779 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
780 }
781 }
782
7527a782
JB		 783 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
784 dev->wiphy.interface_modes))
f59ac048
LR		 785 goto nla_put_failure;
786
ee688b00
JB		 787 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
788 if (!nl_bands)
789 goto nla_put_failure;
790
791 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
792 if (!dev->wiphy.bands[band])
793 continue;
794
795 nl_band = nla_nest_start(msg, band);
796 if (!nl_band)
797 goto nla_put_failure;
798
d51626df
JB		 799 /* add HT info */
800 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
801 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
802 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
803 &dev->wiphy.bands[band]->ht_cap.mcs);
804 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
805 dev->wiphy.bands[band]->ht_cap.cap);
806 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
807 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
808 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
809 dev->wiphy.bands[band]->ht_cap.ampdu_density);
810 }
811
ee688b00
JB		 812 /* add frequencies */
813 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
814 if (!nl_freqs)
815 goto nla_put_failure;
816
817 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
818 nl_freq = nla_nest_start(msg, i);
819 if (!nl_freq)
820 goto nla_put_failure;
821
822 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 823
824 if (nl80211_msg_put_channel(msg, chan))
825 goto nla_put_failure;
e2f367f2 826
ee688b00
JB		 827 nla_nest_end(msg, nl_freq);
828 }
829
830 nla_nest_end(msg, nl_freqs);
831
832 /* add bitrates */
833 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
834 if (!nl_rates)
835 goto nla_put_failure;
836
837 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
838 nl_rate = nla_nest_start(msg, i);
839 if (!nl_rate)
840 goto nla_put_failure;
841
842 rate = &dev->wiphy.bands[band]->bitrates[i];
843 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
844 rate->bitrate);
845 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
846 NLA_PUT_FLAG(msg,
847 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
848
849 nla_nest_end(msg, nl_rate);
850 }
851
852 nla_nest_end(msg, nl_rates);
853
854 nla_nest_end(msg, nl_band);
855 }
856 nla_nest_end(msg, nl_bands);
857
8fdc621d
JB		 858 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
859 if (!nl_cmds)
860 goto nla_put_failure;
861
862 i = 0;
863#define CMD(op, n) \
864 do { \
865 if (dev->ops->op) { \
866 i++; \
867 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
868 } \
869 } while (0)
870
871 CMD(add_virtual_intf, NEW_INTERFACE);
872 CMD(change_virtual_intf, SET_INTERFACE);
873 CMD(add_key, NEW_KEY);
874 CMD(add_beacon, NEW_BEACON);
875 CMD(add_station, NEW_STATION);
876 CMD(add_mpath, NEW_MPATH);
24bdd9f4 877 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 878 CMD(change_bss, SET_BSS);
636a5d36
JM		 879 CMD(auth, AUTHENTICATE);
880 CMD(assoc, ASSOCIATE);
881 CMD(deauth, DEAUTHENTICATE);
882 CMD(disassoc, DISASSOCIATE);
04a773ad 883 CMD(join_ibss, JOIN_IBSS);
29cbe68c 884 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 885 CMD(set_pmksa, SET_PMKSA);
886 CMD(del_pmksa, DEL_PMKSA);
887 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 888 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
889 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 890 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 891 CMD(mgmt_tx, FRAME);
f7ca38df 892 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 893 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 894 i++;
895 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
896 }
f444de05 897 CMD(set_channel, SET_CHANNEL);
e8347eba 898 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 899 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
900 CMD(tdls_mgmt, TDLS_MGMT);
901 CMD(tdls_oper, TDLS_OPER);
902 }
807f8a8c
LC		 903 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
904 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 905 CMD(probe_client, PROBE_CLIENT);
1d9d9213 906 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 907 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
908 i++;
909 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
910 }
8fdc621d 911
4745fc09
KV		 912#ifdef CONFIG_NL80211_TESTMODE
913 CMD(testmode_cmd, TESTMODE);
914#endif
915
8fdc621d 916#undef CMD
b23aa676 917
6829c878 918 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 919 i++;
920 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
921 }
922
6829c878 923 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 924 i++;
925 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
926 }
927
8fdc621d
JB		 928 nla_nest_end(msg, nl_cmds);
929
7c4ef712
JB		 930 if (dev->ops->remain_on_channel &&
931 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
a293911d
JB		 932 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
933 dev->wiphy.max_remain_on_channel_duration);
934
7c4ef712 935 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
f7ca38df
JB		 936 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
937
2e161f78
JB		 938 if (mgmt_stypes) {
939 u16 stypes;
940 struct nlattr *nl_ftypes, *nl_ifs;
941 enum nl80211_iftype ift;
942
943 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
944 if (!nl_ifs)
945 goto nla_put_failure;
946
947 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
948 nl_ftypes = nla_nest_start(msg, ift);
949 if (!nl_ftypes)
950 goto nla_put_failure;
951 i = 0;
952 stypes = mgmt_stypes[ift].tx;
953 while (stypes) {
954 if (stypes & 1)
955 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
956 (i << 4) | IEEE80211_FTYPE_MGMT);
957 stypes >>= 1;
958 i++;
959 }
960 nla_nest_end(msg, nl_ftypes);
961 }
962
74b70a4e
JB		 963 nla_nest_end(msg, nl_ifs);
964
2e161f78
JB		 965 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
966 if (!nl_ifs)
967 goto nla_put_failure;
968
969 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
970 nl_ftypes = nla_nest_start(msg, ift);
971 if (!nl_ftypes)
972 goto nla_put_failure;
973 i = 0;
974 stypes = mgmt_stypes[ift].rx;
975 while (stypes) {
976 if (stypes & 1)
977 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
978 (i << 4) | IEEE80211_FTYPE_MGMT);
979 stypes >>= 1;
980 i++;
981 }
982 nla_nest_end(msg, nl_ftypes);
983 }
984 nla_nest_end(msg, nl_ifs);
985 }
986
ff1b6e69
JB		 987 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
988 struct nlattr *nl_wowlan;
989
990 nl_wowlan = nla_nest_start(msg,
991 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
992 if (!nl_wowlan)
993 goto nla_put_failure;
994
995 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
996 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
997 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
998 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
999 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1000 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 1001 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1002 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1003 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1004 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1005 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1006 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1007 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1008 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1009 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1010 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 1011 if (dev->wiphy.wowlan.n_patterns) {
1012 struct nl80211_wowlan_pattern_support pat = {
1013 .max_patterns = dev->wiphy.wowlan.n_patterns,
1014 .min_pattern_len =
1015 dev->wiphy.wowlan.pattern_min_len,
1016 .max_pattern_len =
1017 dev->wiphy.wowlan.pattern_max_len,
1018 };
1019 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1020 sizeof(pat), &pat);
1021 }
1022
1023 nla_nest_end(msg, nl_wowlan);
1024 }
1025
7527a782
JB		 1026 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1027 dev->wiphy.software_iftypes))
1028 goto nla_put_failure;
1029
1030 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1031 goto nla_put_failure;
1032
562a7480
JB		 1033 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1034 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1035 dev->wiphy.ap_sme_capa);
1036
1f074bd8
JB		 1037 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1038
7e7c8926
BG		 1039 if (dev->wiphy.ht_capa_mod_mask)
1040 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1041 sizeof(*dev->wiphy.ht_capa_mod_mask),
1042 dev->wiphy.ht_capa_mod_mask);
1043
55682965
JB		 1044 return genlmsg_end(msg, hdr);
1045
1046 nla_put_failure:
bc3ed28c
TG		 1047 genlmsg_cancel(msg, hdr);
1048 return -EMSGSIZE;
55682965
JB		 1049}
1050
1051static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1052{
1053 int idx = 0;
1054 int start = cb->args[0];
1055 struct cfg80211_registered_device *dev;
1056
a1794390 1057 mutex_lock(&cfg80211_mutex);
79c97e97 1058 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1059 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1060 continue;
b4637271 1061 if (++idx <= start)
55682965
JB		 1062 continue;
1063 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1064 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1065 dev) < 0) {
1066 idx--;
55682965 1067 break;
b4637271 1068 }
55682965 1069 }
a1794390 1070 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1071
1072 cb->args[0] = idx;
1073
1074 return skb->len;
1075}
1076
1077static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1078{
1079 struct sk_buff *msg;
4c476991 1080 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1081
fd2120ca 1082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1083 if (!msg)
4c476991 1084 return -ENOMEM;
55682965 1085
4c476991
JB		 1086 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1087 nlmsg_free(msg);
1088 return -ENOBUFS;
1089 }
55682965 1090
134e6375 1091 return genlmsg_reply(msg, info);
55682965
JB		 1092}
1093
31888487
JM		 1094static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1095 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1096 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1097 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1098 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1100};
1101
1102static int parse_txq_params(struct nlattr *tb[],
1103 struct ieee80211_txq_params *txq_params)
1104{
1105 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1106 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1107 !tb[NL80211_TXQ_ATTR_AIFS])
1108 return -EINVAL;
1109
1110 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1111 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1112 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1113 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1114 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1115
1116 return 0;
1117}
1118
f444de05
JB		 1119static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1120{
1121 /*
1122 * You can only set the channel explicitly for AP, mesh
1123 * and WDS type interfaces; all others have their channel
1124 * managed via their respective "establish a connection"
1125 * command (connect, join, ...)
1126 *
1127 * Monitors are special as they are normally slaved to
1128 * whatever else is going on, so they behave as though
1129 * you tried setting the wiphy channel itself.
1130 */
1131 return !wdev ||
1132 wdev->iftype == NL80211_IFTYPE_AP ||
1133 wdev->iftype == NL80211_IFTYPE_WDS ||
1134 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1135 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1136 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1137}
1138
1139static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1140 struct wireless_dev *wdev,
1141 struct genl_info *info)
1142{
1143 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1144 u32 freq;
1145 int result;
1146
1147 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1148 return -EINVAL;
1149
1150 if (!nl80211_can_set_dev_channel(wdev))
1151 return -EOPNOTSUPP;
1152
1153 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1154 channel_type = nla_get_u32(info->attrs[
1155 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1156 if (channel_type != NL80211_CHAN_NO_HT &&
1157 channel_type != NL80211_CHAN_HT20 &&
1158 channel_type != NL80211_CHAN_HT40PLUS &&
1159 channel_type != NL80211_CHAN_HT40MINUS)
1160 return -EINVAL;
1161 }
1162
1163 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1164
1165 mutex_lock(&rdev->devlist_mtx);
1166 if (wdev) {
1167 wdev_lock(wdev);
1168 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1169 wdev_unlock(wdev);
1170 } else {
1171 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1172 }
1173 mutex_unlock(&rdev->devlist_mtx);
1174
1175 return result;
1176}
1177
1178static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1179{
4c476991
JB		 1180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1181 struct net_device *netdev = info->user_ptr[1];
f444de05 1182
4c476991 1183 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1184}
1185
e8347eba
BJ		 1186static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1187{
43b19952
JB		 1188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1189 struct net_device *dev = info->user_ptr[1];
1190 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1191 const u8 *bssid;
e8347eba
BJ		 1192
1193 if (!info->attrs[NL80211_ATTR_MAC])
1194 return -EINVAL;
1195
43b19952
JB		 1196 if (netif_running(dev))
1197 return -EBUSY;
e8347eba 1198
43b19952
JB		 1199 if (!rdev->ops->set_wds_peer)
1200 return -EOPNOTSUPP;
e8347eba 1201
43b19952
JB		 1202 if (wdev->iftype != NL80211_IFTYPE_WDS)
1203 return -EOPNOTSUPP;
e8347eba
BJ		 1204
1205 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1206 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1207}
1208
1209
55682965
JB		 1210static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1211{
1212 struct cfg80211_registered_device *rdev;
f444de05
JB		 1213 struct net_device *netdev = NULL;
1214 struct wireless_dev *wdev;
a1e567c8 1215 int result = 0, rem_txq_params = 0;
31888487 1216 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1217 u32 changed;
1218 u8 retry_short = 0, retry_long = 0;
1219 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1220 u8 coverage_class = 0;
55682965 1221
f444de05
JB		 1222 /*
1223 * Try to find the wiphy and netdev. Normally this
1224 * function shouldn't need the netdev, but this is
1225 * done for backward compatibility -- previously
1226 * setting the channel was done per wiphy, but now
1227 * it is per netdev. Previous userland like hostapd
1228 * also passed a netdev to set_wiphy, so that it is
1229 * possible to let that go to the right netdev!
1230 */
4bbf4d56
JB		 1231 mutex_lock(&cfg80211_mutex);
1232
f444de05
JB		 1233 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1234 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1235
1236 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1237 if (netdev && netdev->ieee80211_ptr) {
1238 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1239 mutex_lock(&rdev->mtx);
1240 } else
1241 netdev = NULL;
4bbf4d56
JB		 1242 }
1243
f444de05
JB		 1244 if (!netdev) {
1245 rdev = __cfg80211_rdev_from_info(info);
1246 if (IS_ERR(rdev)) {
1247 mutex_unlock(&cfg80211_mutex);
4c476991 1248 return PTR_ERR(rdev);
f444de05
JB		 1249 }
1250 wdev = NULL;
1251 netdev = NULL;
1252 result = 0;
1253
1254 mutex_lock(&rdev->mtx);
1255 } else if (netif_running(netdev) &&
1256 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1257 wdev = netdev->ieee80211_ptr;
1258 else
1259 wdev = NULL;
1260
1261 /*
1262 * end workaround code, by now the rdev is available
1263 * and locked, and wdev may or may not be NULL.
1264 */
4bbf4d56
JB		 1265
1266 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1267 result = cfg80211_dev_rename(
1268 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1269
1270 mutex_unlock(&cfg80211_mutex);
1271
1272 if (result)
1273 goto bad_res;
31888487
JM		 1274
1275 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1276 struct ieee80211_txq_params txq_params;
1277 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1278
1279 if (!rdev->ops->set_txq_params) {
1280 result = -EOPNOTSUPP;
1281 goto bad_res;
1282 }
1283
f70f01c2
EP		 1284 if (!netdev) {
1285 result = -EINVAL;
1286 goto bad_res;
1287 }
1288
133a3ff2
JB		 1289 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1290 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1291 result = -EINVAL;
1292 goto bad_res;
1293 }
1294
31888487
JM		 1295 nla_for_each_nested(nl_txq_params,
1296 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1297 rem_txq_params) {
1298 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1299 nla_data(nl_txq_params),
1300 nla_len(nl_txq_params),
1301 txq_params_policy);
1302 result = parse_txq_params(tb, &txq_params);
1303 if (result)
1304 goto bad_res;
1305
1306 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1307 netdev,
31888487
JM		 1308 &txq_params);
1309 if (result)
1310 goto bad_res;
1311 }
1312 }
55682965 1313
72bdcf34 1314 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1315 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1316 if (result)
1317 goto bad_res;
1318 }
1319
98d2ff8b
JO		 1320 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1321 enum nl80211_tx_power_setting type;
1322 int idx, mbm = 0;
1323
1324 if (!rdev->ops->set_tx_power) {
60ea385f 1325 result = -EOPNOTSUPP;
98d2ff8b
JO		 1326 goto bad_res;
1327 }
1328
1329 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1330 type = nla_get_u32(info->attrs[idx]);
1331
1332 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1333 (type != NL80211_TX_POWER_AUTOMATIC)) {
1334 result = -EINVAL;
1335 goto bad_res;
1336 }
1337
1338 if (type != NL80211_TX_POWER_AUTOMATIC) {
1339 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1340 mbm = nla_get_u32(info->attrs[idx]);
1341 }
1342
1343 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1344 if (result)
1345 goto bad_res;
1346 }
1347
afe0cbf8
BR		 1348 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1349 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1350 u32 tx_ant, rx_ant;
7f531e03
BR		 1351 if ((!rdev->wiphy.available_antennas_tx &&
1352 !rdev->wiphy.available_antennas_rx) ||
1353 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1354 result = -EOPNOTSUPP;
1355 goto bad_res;
1356 }
1357
1358 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1359 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1360
a7ffac95 1361 /* reject antenna configurations which don't match the
7f531e03
BR		 1362 * available antenna masks, except for the "all" mask */
1363 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1364 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1365 result = -EINVAL;
1366 goto bad_res;
1367 }
1368
7f531e03
BR		 1369 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1370 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1371
afe0cbf8
BR		 1372 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1373 if (result)
1374 goto bad_res;
1375 }
1376
b9a5f8ca
JM		 1377 changed = 0;
1378
1379 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1380 retry_short = nla_get_u8(
1381 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1382 if (retry_short == 0) {
1383 result = -EINVAL;
1384 goto bad_res;
1385 }
1386 changed |= WIPHY_PARAM_RETRY_SHORT;
1387 }
1388
1389 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1390 retry_long = nla_get_u8(
1391 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1392 if (retry_long == 0) {
1393 result = -EINVAL;
1394 goto bad_res;
1395 }
1396 changed |= WIPHY_PARAM_RETRY_LONG;
1397 }
1398
1399 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1400 frag_threshold = nla_get_u32(
1401 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1402 if (frag_threshold < 256) {
1403 result = -EINVAL;
1404 goto bad_res;
1405 }
1406 if (frag_threshold != (u32) -1) {
1407 /*
1408 * Fragments (apart from the last one) are required to
1409 * have even length. Make the fragmentation code
1410 * simpler by stripping LSB should someone try to use
1411 * odd threshold value.
1412 */
1413 frag_threshold &= ~0x1;
1414 }
1415 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1416 }
1417
1418 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1419 rts_threshold = nla_get_u32(
1420 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1421 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1422 }
1423
81077e82
LT		 1424 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1425 coverage_class = nla_get_u8(
1426 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1427 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1428 }
1429
b9a5f8ca
JM		 1430 if (changed) {
1431 u8 old_retry_short, old_retry_long;
1432 u32 old_frag_threshold, old_rts_threshold;
81077e82 1433 u8 old_coverage_class;
b9a5f8ca
JM		 1434
1435 if (!rdev->ops->set_wiphy_params) {
1436 result = -EOPNOTSUPP;
1437 goto bad_res;
1438 }
1439
1440 old_retry_short = rdev->wiphy.retry_short;
1441 old_retry_long = rdev->wiphy.retry_long;
1442 old_frag_threshold = rdev->wiphy.frag_threshold;
1443 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1444 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1445
1446 if (changed & WIPHY_PARAM_RETRY_SHORT)
1447 rdev->wiphy.retry_short = retry_short;
1448 if (changed & WIPHY_PARAM_RETRY_LONG)
1449 rdev->wiphy.retry_long = retry_long;
1450 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1451 rdev->wiphy.frag_threshold = frag_threshold;
1452 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1453 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1454 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1455 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1456
1457 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1458 if (result) {
1459 rdev->wiphy.retry_short = old_retry_short;
1460 rdev->wiphy.retry_long = old_retry_long;
1461 rdev->wiphy.frag_threshold = old_frag_threshold;
1462 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1463 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1464 }
1465 }
72bdcf34 1466
306d6112 1467 bad_res:
4bbf4d56 1468 mutex_unlock(&rdev->mtx);
f444de05
JB		 1469 if (netdev)
1470 dev_put(netdev);
55682965
JB		 1471 return result;
1472}
1473
1474
1475static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1476 struct cfg80211_registered_device *rdev,
55682965
JB		 1477 struct net_device *dev)
1478{
1479 void *hdr;
1480
1481 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1482 if (!hdr)
1483 return -1;
1484
1485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1486 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1487 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1488 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1489
1490 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1491 rdev->devlist_generation ^
1492 (cfg80211_rdev_list_generation << 2));
1493
55682965
JB		 1494 return genlmsg_end(msg, hdr);
1495
1496 nla_put_failure:
bc3ed28c
TG		 1497 genlmsg_cancel(msg, hdr);
1498 return -EMSGSIZE;
55682965
JB		 1499}
1500
1501static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1502{
1503 int wp_idx = 0;
1504 int if_idx = 0;
1505 int wp_start = cb->args[0];
1506 int if_start = cb->args[1];
f5ea9120 1507 struct cfg80211_registered_device *rdev;
55682965
JB		 1508 struct wireless_dev *wdev;
1509
a1794390 1510 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1511 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1512 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1513 continue;
bba95fef
JB		 1514 if (wp_idx < wp_start) {
1515 wp_idx++;
55682965 1516 continue;
bba95fef 1517 }
55682965
JB		 1518 if_idx = 0;
1519
f5ea9120
JB		 1520 mutex_lock(&rdev->devlist_mtx);
1521 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1522 if (if_idx < if_start) {
1523 if_idx++;
55682965 1524 continue;
bba95fef 1525 }
55682965
JB		 1526 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1527 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1528 rdev, wdev->netdev) < 0) {
1529 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1530 goto out;
1531 }
1532 if_idx++;
55682965 1533 }
f5ea9120 1534 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1535
1536 wp_idx++;
55682965 1537 }
bba95fef 1538 out:
a1794390 1539 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1540
1541 cb->args[0] = wp_idx;
1542 cb->args[1] = if_idx;
1543
1544 return skb->len;
1545}
1546
1547static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1548{
1549 struct sk_buff *msg;
4c476991
JB		 1550 struct cfg80211_registered_device *dev = info->user_ptr[0];
1551 struct net_device *netdev = info->user_ptr[1];
55682965 1552
fd2120ca 1553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1554 if (!msg)
4c476991 1555 return -ENOMEM;
55682965 1556
d726405a 1557 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1558 dev, netdev) < 0) {
1559 nlmsg_free(msg);
1560 return -ENOBUFS;
1561 }
55682965 1562
134e6375 1563 return genlmsg_reply(msg, info);
55682965
JB		 1564}
1565
66f7ac50
MW		 1566static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1567 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1568 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1569 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1570 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1571 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1572};
1573
1574static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1575{
1576 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1577 int flag;
1578
1579 *mntrflags = 0;
1580
1581 if (!nla)
1582 return -EINVAL;
1583
1584 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1585 nla, mntr_flags_policy))
1586 return -EINVAL;
1587
1588 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1589 if (flags[flag])
1590 *mntrflags |= (1<<flag);
1591
1592 return 0;
1593}
1594
9bc383de 1595static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1596 struct net_device *netdev, u8 use_4addr,
1597 enum nl80211_iftype iftype)
9bc383de 1598{
ad4bb6f8 1599 if (!use_4addr) {
f350a0a8 1600 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1601 return -EBUSY;
9bc383de 1602 return 0;
ad4bb6f8 1603 }
9bc383de
JB		 1604
1605 switch (iftype) {
1606 case NL80211_IFTYPE_AP_VLAN:
1607 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1608 return 0;
1609 break;
1610 case NL80211_IFTYPE_STATION:
1611 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1612 return 0;
1613 break;
1614 default:
1615 break;
1616 }
1617
1618 return -EOPNOTSUPP;
1619}
1620
55682965
JB		 1621static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1622{
4c476991 1623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1624 struct vif_params params;
e36d56b6 1625 int err;
04a773ad 1626 enum nl80211_iftype otype, ntype;
4c476991 1627 struct net_device *dev = info->user_ptr[1];
92ffe055 1628 u32 _flags, *flags = NULL;
ac7f9cfa 1629 bool change = false;
55682965 1630
2ec600d6
LCC		 1631 memset(&params, 0, sizeof(params));
1632
04a773ad 1633 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1634
723b038d 1635 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1636 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1637 if (otype != ntype)
ac7f9cfa 1638 change = true;
4c476991
JB		 1639 if (ntype > NL80211_IFTYPE_MAX)
1640 return -EINVAL;
723b038d
JB		 1641 }
1642
92ffe055 1643 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1644 struct wireless_dev *wdev = dev->ieee80211_ptr;
1645
4c476991
JB		 1646 if (ntype != NL80211_IFTYPE_MESH_POINT)
1647 return -EINVAL;
29cbe68c
JB		 1648 if (netif_running(dev))
1649 return -EBUSY;
1650
1651 wdev_lock(wdev);
1652 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1653 IEEE80211_MAX_MESH_ID_LEN);
1654 wdev->mesh_id_up_len =
1655 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1656 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1657 wdev->mesh_id_up_len);
1658 wdev_unlock(wdev);
2ec600d6
LCC		 1659 }
1660
8b787643
FF		 1661 if (info->attrs[NL80211_ATTR_4ADDR]) {
1662 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1663 change = true;
ad4bb6f8 1664 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1665 if (err)
4c476991 1666 return err;
8b787643
FF		 1667 } else {
1668 params.use_4addr = -1;
1669 }
1670
92ffe055 1671 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1672 if (ntype != NL80211_IFTYPE_MONITOR)
1673 return -EINVAL;
92ffe055
JB		 1674 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1675 &_flags);
ac7f9cfa 1676 if (err)
4c476991 1677 return err;
ac7f9cfa
JB		 1678
1679 flags = &_flags;
1680 change = true;
92ffe055 1681 }
3b85875a 1682
ac7f9cfa 1683 if (change)
3d54d255 1684 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1685 else
1686 err = 0;
60719ffd 1687
9bc383de
JB		 1688 if (!err && params.use_4addr != -1)
1689 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1690
55682965
JB		 1691 return err;
1692}
1693
1694static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1695{
4c476991 1696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1697 struct vif_params params;
f9e10ce4 1698 struct net_device *dev;
55682965
JB		 1699 int err;
1700 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1701 u32 flags;
55682965 1702
2ec600d6
LCC		 1703 memset(&params, 0, sizeof(params));
1704
55682965
JB		 1705 if (!info->attrs[NL80211_ATTR_IFNAME])
1706 return -EINVAL;
1707
1708 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1709 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1710 if (type > NL80211_IFTYPE_MAX)
1711 return -EINVAL;
1712 }
1713
79c97e97 1714 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1715 !(rdev->wiphy.interface_modes & (1 << type)))
1716 return -EOPNOTSUPP;
55682965 1717
9bc383de 1718 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1719 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1720 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1721 if (err)
4c476991 1722 return err;
9bc383de 1723 }
8b787643 1724
66f7ac50
MW		 1725 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1726 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1727 &flags);
f9e10ce4 1728 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1729 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1730 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1731 if (IS_ERR(dev))
1732 return PTR_ERR(dev);
2ec600d6 1733
29cbe68c
JB		 1734 if (type == NL80211_IFTYPE_MESH_POINT &&
1735 info->attrs[NL80211_ATTR_MESH_ID]) {
1736 struct wireless_dev *wdev = dev->ieee80211_ptr;
1737
1738 wdev_lock(wdev);
1739 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1740 IEEE80211_MAX_MESH_ID_LEN);
1741 wdev->mesh_id_up_len =
1742 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1743 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1744 wdev->mesh_id_up_len);
1745 wdev_unlock(wdev);
1746 }
1747
f9e10ce4 1748 return 0;
55682965
JB		 1749}
1750
1751static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1752{
4c476991
JB		 1753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1754 struct net_device *dev = info->user_ptr[1];
55682965 1755
4c476991
JB		 1756 if (!rdev->ops->del_virtual_intf)
1757 return -EOPNOTSUPP;
55682965 1758
4c476991 1759 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1760}
1761
1d9d9213
SW		 1762static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1763{
1764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1765 struct net_device *dev = info->user_ptr[1];
1766 u16 noack_map;
1767
1768 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1769 return -EINVAL;
1770
1771 if (!rdev->ops->set_noack_map)
1772 return -EOPNOTSUPP;
1773
1774 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1775
1776 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1777}
1778
41ade00f
JB		 1779struct get_key_cookie {
1780 struct sk_buff *msg;
1781 int error;
b9454e83 1782 int idx;
41ade00f
JB		 1783};
1784
1785static void get_key_callback(void *c, struct key_params *params)
1786{
b9454e83 1787 struct nlattr *key;
41ade00f
JB		 1788 struct get_key_cookie *cookie = c;
1789
1790 if (params->key)
1791 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1792 params->key_len, params->key);
1793
1794 if (params->seq)
1795 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1796 params->seq_len, params->seq);
1797
1798 if (params->cipher)
1799 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1800 params->cipher);
1801
b9454e83
JB		 1802 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1803 if (!key)
1804 goto nla_put_failure;
1805
1806 if (params->key)
1807 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1808 params->key_len, params->key);
1809
1810 if (params->seq)
1811 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1812 params->seq_len, params->seq);
1813
1814 if (params->cipher)
1815 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1816 params->cipher);
1817
1818 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1819
1820 nla_nest_end(cookie->msg, key);
1821
41ade00f
JB		 1822 return;
1823 nla_put_failure:
1824 cookie->error = 1;
1825}
1826
1827static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1828{
4c476991 1829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1830 int err;
4c476991 1831 struct net_device *dev = info->user_ptr[1];
41ade00f 1832 u8 key_idx = 0;
e31b8213
JB		 1833 const u8 *mac_addr = NULL;
1834 bool pairwise;
41ade00f
JB		 1835 struct get_key_cookie cookie = {
1836 .error = 0,
1837 };
1838 void *hdr;
1839 struct sk_buff *msg;
1840
1841 if (info->attrs[NL80211_ATTR_KEY_IDX])
1842 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1843
3cfcf6ac 1844 if (key_idx > 5)
41ade00f
JB		 1845 return -EINVAL;
1846
1847 if (info->attrs[NL80211_ATTR_MAC])
1848 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1849
e31b8213
JB		 1850 pairwise = !!mac_addr;
1851 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1852 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1853 if (kt >= NUM_NL80211_KEYTYPES)
1854 return -EINVAL;
1855 if (kt != NL80211_KEYTYPE_GROUP &&
1856 kt != NL80211_KEYTYPE_PAIRWISE)
1857 return -EINVAL;
1858 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1859 }
1860
4c476991
JB		 1861 if (!rdev->ops->get_key)
1862 return -EOPNOTSUPP;
41ade00f 1863
fd2120ca 1864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1865 if (!msg)
1866 return -ENOMEM;
41ade00f
JB		 1867
1868 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1869 NL80211_CMD_NEW_KEY);
4c476991
JB		 1870 if (IS_ERR(hdr))
1871 return PTR_ERR(hdr);
41ade00f
JB		 1872
1873 cookie.msg = msg;
b9454e83 1874 cookie.idx = key_idx;
41ade00f
JB		 1875
1876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1877 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1878 if (mac_addr)
1879 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1880
e31b8213
JB		 1881 if (pairwise && mac_addr &&
1882 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1883 return -ENOENT;
1884
1885 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1886 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1887
1888 if (err)
6c95e2a2 1889 goto free_msg;
41ade00f
JB		 1890
1891 if (cookie.error)
1892 goto nla_put_failure;
1893
1894 genlmsg_end(msg, hdr);
4c476991 1895 return genlmsg_reply(msg, info);
41ade00f
JB		 1896
1897 nla_put_failure:
1898 err = -ENOBUFS;
6c95e2a2 1899 free_msg:
41ade00f 1900 nlmsg_free(msg);
41ade00f
JB		 1901 return err;
1902}
1903
1904static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1905{
4c476991 1906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1907 struct key_parse key;
41ade00f 1908 int err;
4c476991 1909 struct net_device *dev = info->user_ptr[1];
41ade00f 1910
b9454e83
JB		 1911 err = nl80211_parse_key(info, &key);
1912 if (err)
1913 return err;
41ade00f 1914
b9454e83 1915 if (key.idx < 0)
41ade00f
JB		 1916 return -EINVAL;
1917
b9454e83
JB		 1918 /* only support setting default key */
1919 if (!key.def && !key.defmgmt)
41ade00f
JB		 1920 return -EINVAL;
1921
dbd2fd65 1922 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1923
dbd2fd65
JB		 1924 if (key.def) {
1925 if (!rdev->ops->set_default_key) {
1926 err = -EOPNOTSUPP;
1927 goto out;
1928 }
41ade00f 1929
dbd2fd65
JB		 1930 err = nl80211_key_allowed(dev->ieee80211_ptr);
1931 if (err)
1932 goto out;
1933
dbd2fd65
JB		 1934 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1935 key.def_uni, key.def_multi);
1936
1937 if (err)
1938 goto out;
fffd0934 1939
3d23e349 1940#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1941 dev->ieee80211_ptr->wext.default_key = key.idx;
1942#endif
1943 } else {
1944 if (key.def_uni || !key.def_multi) {
1945 err = -EINVAL;
1946 goto out;
1947 }
1948
1949 if (!rdev->ops->set_default_mgmt_key) {
1950 err = -EOPNOTSUPP;
1951 goto out;
1952 }
1953
1954 err = nl80211_key_allowed(dev->ieee80211_ptr);
1955 if (err)
1956 goto out;
1957
1958 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1959 dev, key.idx);
1960 if (err)
1961 goto out;
1962
1963#ifdef CONFIG_CFG80211_WEXT
1964 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1965#endif
dbd2fd65
JB		 1966 }
1967
1968 out:
fffd0934 1969 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1970
41ade00f
JB		 1971 return err;
1972}
1973
1974static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1975{
4c476991 1976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1977 int err;
4c476991 1978 struct net_device *dev = info->user_ptr[1];
b9454e83 1979 struct key_parse key;
e31b8213 1980 const u8 *mac_addr = NULL;
41ade00f 1981
b9454e83
JB		 1982 err = nl80211_parse_key(info, &key);
1983 if (err)
1984 return err;
41ade00f 1985
b9454e83 1986 if (!key.p.key)
41ade00f
JB		 1987 return -EINVAL;
1988
41ade00f
JB		 1989 if (info->attrs[NL80211_ATTR_MAC])
1990 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1991
e31b8213
JB		 1992 if (key.type == -1) {
1993 if (mac_addr)
1994 key.type = NL80211_KEYTYPE_PAIRWISE;
1995 else
1996 key.type = NL80211_KEYTYPE_GROUP;
1997 }
1998
1999 /* for now */
2000 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2001 key.type != NL80211_KEYTYPE_GROUP)
2002 return -EINVAL;
2003
4c476991
JB		 2004 if (!rdev->ops->add_key)
2005 return -EOPNOTSUPP;
25e47c18 2006
e31b8213
JB		 2007 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2008 key.type == NL80211_KEYTYPE_PAIRWISE,
2009 mac_addr))
4c476991 2010 return -EINVAL;
41ade00f 2011
fffd0934
JB		 2012 wdev_lock(dev->ieee80211_ptr);
2013 err = nl80211_key_allowed(dev->ieee80211_ptr);
2014 if (!err)
2015 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2016 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2017 mac_addr, &key.p);
2018 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2019
41ade00f
JB		 2020 return err;
2021}
2022
2023static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2024{
4c476991 2025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2026 int err;
4c476991 2027 struct net_device *dev = info->user_ptr[1];
41ade00f 2028 u8 *mac_addr = NULL;
b9454e83 2029 struct key_parse key;
41ade00f 2030
b9454e83
JB		 2031 err = nl80211_parse_key(info, &key);
2032 if (err)
2033 return err;
41ade00f
JB		 2034
2035 if (info->attrs[NL80211_ATTR_MAC])
2036 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2037
e31b8213
JB		 2038 if (key.type == -1) {
2039 if (mac_addr)
2040 key.type = NL80211_KEYTYPE_PAIRWISE;
2041 else
2042 key.type = NL80211_KEYTYPE_GROUP;
2043 }
2044
2045 /* for now */
2046 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2047 key.type != NL80211_KEYTYPE_GROUP)
2048 return -EINVAL;
2049
4c476991
JB		 2050 if (!rdev->ops->del_key)
2051 return -EOPNOTSUPP;
41ade00f 2052
fffd0934
JB		 2053 wdev_lock(dev->ieee80211_ptr);
2054 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2055
2056 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2057 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2058 err = -ENOENT;
2059
fffd0934 2060 if (!err)
e31b8213
JB		 2061 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2062 key.type == NL80211_KEYTYPE_PAIRWISE,
2063 mac_addr);
41ade00f 2064
3d23e349 2065#ifdef CONFIG_CFG80211_WEXT
08645126 2066 if (!err) {
b9454e83 2067 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2068 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2069 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2070 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2071 }
2072#endif
fffd0934 2073 wdev_unlock(dev->ieee80211_ptr);
08645126 2074
41ade00f
JB		 2075 return err;
2076}
2077
ed1b6cc7
JB		 2078static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2079{
2080 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2081 struct beacon_parameters *info);
4c476991
JB		 2082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2083 struct net_device *dev = info->user_ptr[1];
56d1893d 2084 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2085 struct beacon_parameters params;
56d1893d 2086 int haveinfo = 0, err;
ed1b6cc7 2087
9946ecfb
JM		 2088 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2089 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2090 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2091 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2092 return -EINVAL;
2093
074ac8df 2094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2095 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2096 return -EOPNOTSUPP;
eec60b03 2097
56d1893d
JB		 2098 memset(&params, 0, sizeof(params));
2099
ed1b6cc7
JB		 2100 switch (info->genlhdr->cmd) {
2101 case NL80211_CMD_NEW_BEACON:
2102 /* these are required for NEW_BEACON */
2103 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2104 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2105 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2106 return -EINVAL;
ed1b6cc7 2107
56d1893d
JB		 2108 params.interval =
2109 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2110 params.dtim_period =
2111 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2112
2113 err = cfg80211_validate_beacon_int(rdev, params.interval);
2114 if (err)
2115 return err;
2116
32e9de84
JM		 2117 /*
2118 * In theory, some of these attributes could be required for
2119 * NEW_BEACON, but since they were not used when the command was
2120 * originally added, keep them optional for old user space
2121 * programs to work with drivers that do not need the additional
2122 * information.
2123 */
2124 if (info->attrs[NL80211_ATTR_SSID]) {
2125 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2126 params.ssid_len =
2127 nla_len(info->attrs[NL80211_ATTR_SSID]);
2128 if (params.ssid_len == 0 ||
2129 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2130 return -EINVAL;
2131 }
2132
2133 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2134 params.hidden_ssid = nla_get_u32(
2135 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2136 if (params.hidden_ssid !=
2137 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2138 params.hidden_ssid !=
2139 NL80211_HIDDEN_SSID_ZERO_LEN &&
2140 params.hidden_ssid !=
2141 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2142 return -EINVAL;
2143 }
2144
5fb628e9
JM		 2145 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2146
2147 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2148 params.auth_type = nla_get_u32(
2149 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2150 if (!nl80211_valid_auth_type(params.auth_type))
2151 return -EINVAL;
2152 } else
2153 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2154
2155 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2156 NL80211_MAX_NR_CIPHER_SUITES);
2157 if (err)
2158 return err;
2159
79c97e97 2160 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2161 break;
2162 case NL80211_CMD_SET_BEACON:
79c97e97 2163 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2164 break;
2165 default:
2166 WARN_ON(1);
4c476991 2167 return -EOPNOTSUPP;
ed1b6cc7
JB		 2168 }
2169
4c476991
JB		 2170 if (!call)
2171 return -EOPNOTSUPP;
ed1b6cc7 2172
ed1b6cc7
JB		 2173 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2174 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2175 params.head_len =
2176 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2177 haveinfo = 1;
2178 }
2179
2180 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2181 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2182 params.tail_len =
2183 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2184 haveinfo = 1;
2185 }
2186
4c476991
JB		 2187 if (!haveinfo)
2188 return -EINVAL;
3b85875a 2189
9946ecfb
JM		 2190 if (info->attrs[NL80211_ATTR_IE]) {
2191 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2192 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2193 }
2194
2195 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2196 params.proberesp_ies =
2197 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2198 params.proberesp_ies_len =
2199 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2200 }
2201
2202 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2203 params.assocresp_ies =
2204 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2205 params.assocresp_ies_len =
2206 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2207 }
2208
00f740e1
AN		 2209 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2210 params.probe_resp =
2211 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2212 params.probe_resp_len =
2213 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2214 }
2215
56d1893d
JB		 2216 err = call(&rdev->wiphy, dev, &params);
2217 if (!err && params.interval)
2218 wdev->beacon_interval = params.interval;
2219 return err;
ed1b6cc7
JB		 2220}
2221
2222static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2223{
4c476991
JB		 2224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2225 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2226 struct wireless_dev *wdev = dev->ieee80211_ptr;
2227 int err;
ed1b6cc7 2228
4c476991
JB		 2229 if (!rdev->ops->del_beacon)
2230 return -EOPNOTSUPP;
ed1b6cc7 2231
074ac8df 2232 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2233 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2234 return -EOPNOTSUPP;
3b85875a 2235
56d1893d
JB		 2236 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2237 if (!err)
2238 wdev->beacon_interval = 0;
2239 return err;
ed1b6cc7
JB		 2240}
2241
5727ef1b
JB		 2242static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2243 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2244 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2245 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2246 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2247 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2248 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2249};
2250
eccb8e8f 2251static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2252 enum nl80211_iftype iftype,
eccb8e8f 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
bdd3ae3d
JB		 2286 /*
2287 * Only allow certain flags for interface types so that
2288 * other attributes are silently ignored. Remember that
2289 * this is backward compatibility code with old userspace
2290 * and shouldn't be hit in other cases anyway.
2291 */
2292 switch (iftype) {
2293 case NL80211_IFTYPE_AP:
2294 case NL80211_IFTYPE_AP_VLAN:
2295 case NL80211_IFTYPE_P2P_GO:
2296 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2297 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2298 BIT(NL80211_STA_FLAG_WME) |
2299 BIT(NL80211_STA_FLAG_MFP);
2300 break;
2301 case NL80211_IFTYPE_P2P_CLIENT:
2302 case NL80211_IFTYPE_STATION:
2303 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2304 BIT(NL80211_STA_FLAG_TDLS_PEER);
2305 break;
2306 case NL80211_IFTYPE_MESH_POINT:
2307 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2308 BIT(NL80211_STA_FLAG_MFP) |
2309 BIT(NL80211_STA_FLAG_AUTHORIZED);
2310 default:
2311 return -EINVAL;
2312 }
5727ef1b
JB		 2313
2314 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2315 if (flags[flag])
eccb8e8f 2316 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2317
2318 return 0;
2319}
2320
c8dcfd8a
FF		 2321static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2322 int attr)
2323{
2324 struct nlattr *rate;
2325 u16 bitrate;
2326
2327 rate = nla_nest_start(msg, attr);
2328 if (!rate)
2329 goto nla_put_failure;
2330
2331 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2332 bitrate = cfg80211_calculate_bitrate(info);
2333 if (bitrate > 0)
2334 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2335
2336 if (info->flags & RATE_INFO_FLAGS_MCS)
2337 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2338 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2339 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2340 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2341 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2342
2343 nla_nest_end(msg, rate);
2344 return true;
2345
2346nla_put_failure:
2347 return false;
2348}
2349
fd5b74dc
JB		 2350static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2351 int flags, struct net_device *dev,
98b62183 2352 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2353{
2354 void *hdr;
f4263c98 2355 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2356
2357 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2358 if (!hdr)
2359 return -1;
2360
2361 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2362 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2363
f5ea9120
JB		 2364 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2365
2ec600d6
LCC		 2366 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2367 if (!sinfoattr)
fd5b74dc 2368 goto nla_put_failure;
ebe27c91
MSS		 2369 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2370 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2371 sinfo->connected_time);
2ec600d6
LCC		 2372 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2373 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2374 sinfo->inactive_time);
2375 if (sinfo->filled & STATION_INFO_RX_BYTES)
2376 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2377 sinfo->rx_bytes);
2378 if (sinfo->filled & STATION_INFO_TX_BYTES)
2379 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2380 sinfo->tx_bytes);
2381 if (sinfo->filled & STATION_INFO_LLID)
2382 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2383 sinfo->llid);
2384 if (sinfo->filled & STATION_INFO_PLID)
2385 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2386 sinfo->plid);
2387 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2388 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2389 sinfo->plink_state);
420e7fab
HR		 2390 if (sinfo->filled & STATION_INFO_SIGNAL)
2391 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2392 sinfo->signal);
541a45a1
BR		 2393 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2394 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2395 sinfo->signal_avg);
420e7fab 2396 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2397 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2398 NL80211_STA_INFO_TX_BITRATE))
2399 goto nla_put_failure;
2400 }
2401 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2402 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2403 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2404 goto nla_put_failure;
420e7fab 2405 }
98c8a60a
JM		 2406 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2407 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2408 sinfo->rx_packets);
2409 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2410 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2411 sinfo->tx_packets);
b206b4ef
BR		 2412 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2413 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2414 sinfo->tx_retries);
2415 if (sinfo->filled & STATION_INFO_TX_FAILED)
2416 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2417 sinfo->tx_failed);
a85e1d55
PS		 2418 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2419 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2420 sinfo->beacon_loss_count);
f4263c98
PS		 2421 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2422 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2423 if (!bss_param)
2424 goto nla_put_failure;
2425
2426 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2427 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2428 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2429 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2430 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2431 NLA_PUT_FLAG(msg,
2432 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2433 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2434 sinfo->bss_param.dtim_period);
2435 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2436 sinfo->bss_param.beacon_interval);
2437
2438 nla_nest_end(msg, bss_param);
2439 }
bb6e753e
HS		 2440 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2441 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2442 sizeof(struct nl80211_sta_flag_update),
2443 &sinfo->sta_flags);
2ec600d6 2444 nla_nest_end(msg, sinfoattr);
fd5b74dc 2445
040bdf71 2446 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2447 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2448 sinfo->assoc_req_ies);
2449
fd5b74dc
JB		 2450 return genlmsg_end(msg, hdr);
2451
2452 nla_put_failure:
bc3ed28c
TG		 2453 genlmsg_cancel(msg, hdr);
2454 return -EMSGSIZE;
fd5b74dc
JB		 2455}
2456
2ec600d6 2457static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2458 struct netlink_callback *cb)
2ec600d6 2459{
2ec600d6
LCC		 2460 struct station_info sinfo;
2461 struct cfg80211_registered_device *dev;
bba95fef 2462 struct net_device *netdev;
2ec600d6 2463 u8 mac_addr[ETH_ALEN];
bba95fef 2464 int sta_idx = cb->args[1];
2ec600d6 2465 int err;
2ec600d6 2466
67748893
JB		 2467 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2468 if (err)
2469 return err;
bba95fef
JB		 2470
2471 if (!dev->ops->dump_station) {
eec60b03 2472 err = -EOPNOTSUPP;
bba95fef
JB		 2473 goto out_err;
2474 }
2475
bba95fef 2476 while (1) {
f612cedf 2477 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2478 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2479 mac_addr, &sinfo);
2480 if (err == -ENOENT)
2481 break;
2482 if (err)
3b85875a 2483 goto out_err;
bba95fef
JB		 2484
2485 if (nl80211_send_station(skb,
2486 NETLINK_CB(cb->skb).pid,
2487 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2488 netdev, mac_addr,
2489 &sinfo) < 0)
2490 goto out;
2491
2492 sta_idx++;
2493 }
2494
2495
2496 out:
2497 cb->args[1] = sta_idx;
2498 err = skb->len;
bba95fef 2499 out_err:
67748893 2500 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2501
2502 return err;
2ec600d6 2503}
fd5b74dc 2504
5727ef1b
JB		 2505static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2506{
4c476991
JB		 2507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2508 struct net_device *dev = info->user_ptr[1];
2ec600d6 2509 struct station_info sinfo;
fd5b74dc
JB		 2510 struct sk_buff *msg;
2511 u8 *mac_addr = NULL;
4c476991 2512 int err;
fd5b74dc 2513
2ec600d6 2514 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2515
2516 if (!info->attrs[NL80211_ATTR_MAC])
2517 return -EINVAL;
2518
2519 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2520
4c476991
JB		 2521 if (!rdev->ops->get_station)
2522 return -EOPNOTSUPP;
3b85875a 2523
4c476991 2524 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2525 if (err)
4c476991 2526 return err;
2ec600d6 2527
fd2120ca 2528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2529 if (!msg)
4c476991 2530 return -ENOMEM;
fd5b74dc
JB		 2531
2532 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2533 dev, mac_addr, &sinfo) < 0) {
2534 nlmsg_free(msg);
2535 return -ENOBUFS;
2536 }
3b85875a 2537
4c476991 2538 return genlmsg_reply(msg, info);
5727ef1b
JB		 2539}
2540
2541/*
c258d2de 2542 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2543 */
80b99899
JB		 2544static struct net_device *get_vlan(struct genl_info *info,
2545 struct cfg80211_registered_device *rdev)
5727ef1b 2546{
463d0183 2547 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2548 struct net_device *v;
2549 int ret;
2550
2551 if (!vlanattr)
2552 return NULL;
2553
2554 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2555 if (!v)
2556 return ERR_PTR(-ENODEV);
2557
2558 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2559 ret = -EINVAL;
2560 goto error;
5727ef1b 2561 }
80b99899
JB		 2562
2563 if (!netif_running(v)) {
2564 ret = -ENETDOWN;
2565 goto error;
2566 }
2567
2568 return v;
2569 error:
2570 dev_put(v);
2571 return ERR_PTR(ret);
5727ef1b
JB		 2572}
2573
2574static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2575{
4c476991 2576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2577 int err;
4c476991 2578 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2579 struct station_parameters params;
2580 u8 *mac_addr = NULL;
2581
2582 memset(&params, 0, sizeof(params));
2583
2584 params.listen_interval = -1;
57cf8043 2585 params.plink_state = -1;
5727ef1b
JB		 2586
2587 if (info->attrs[NL80211_ATTR_STA_AID])
2588 return -EINVAL;
2589
2590 if (!info->attrs[NL80211_ATTR_MAC])
2591 return -EINVAL;
2592
2593 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2594
2595 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2596 params.supported_rates =
2597 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2598 params.supported_rates_len =
2599 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2600 }
2601
2602 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2603 params.listen_interval =
2604 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2605
36aedc90
JM		 2606 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2607 params.ht_capa =
2608 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2609
bdd90d5e
JB		 2610 if (!rdev->ops->change_station)
2611 return -EOPNOTSUPP;
2612
bdd3ae3d 2613 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2614 return -EINVAL;
2615
2ec600d6
LCC		 2616 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2617 params.plink_action =
2618 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2619
9c3990aa
JC		 2620 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2621 params.plink_state =
2622 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2623
a97f4424
JB		 2624 switch (dev->ieee80211_ptr->iftype) {
2625 case NL80211_IFTYPE_AP:
2626 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2627 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2628 /* disallow mesh-specific things */
2629 if (params.plink_action)
bdd90d5e
JB		 2630 return -EINVAL;
2631
2632 /* TDLS can't be set, ... */
2633 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2634 return -EINVAL;
2635 /*
2636 * ... but don't bother the driver with it. This works around
2637 * a hostapd/wpa_supplicant issue -- it always includes the
2638 * TLDS_PEER flag in the mask even for AP mode.
2639 */
2640 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2641
2642 /* accept only the listed bits */
2643 if (params.sta_flags_mask &
2644 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2645 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2646 BIT(NL80211_STA_FLAG_WME) |
2647 BIT(NL80211_STA_FLAG_MFP)))
2648 return -EINVAL;
2649
2650 /* must be last in here for error handling */
2651 params.vlan = get_vlan(info, rdev);
2652 if (IS_ERR(params.vlan))
2653 return PTR_ERR(params.vlan);
a97f4424 2654 break;
074ac8df 2655 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2656 case NL80211_IFTYPE_STATION:
07ba55d7 2657 /* disallow things sta doesn't support */
a97f4424 2658 if (params.plink_action)
bdd90d5e 2659 return -EINVAL;
a97f4424 2660 if (params.ht_capa)
bdd90d5e 2661 return -EINVAL;
a97f4424 2662 if (params.listen_interval >= 0)
bdd90d5e
JB		 2663 return -EINVAL;
2664 /*
2665 * Don't allow userspace to change the TDLS_PEER flag,
2666 * but silently ignore attempts to change it since we
2667 * don't have state here to verify that it doesn't try
2668 * to change the flag.
2669 */
2670 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2671
2672 /* reject any changes other than AUTHORIZED */
2673 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2674 return -EINVAL;
a97f4424
JB		 2675 break;
2676 case NL80211_IFTYPE_MESH_POINT:
2677 /* disallow things mesh doesn't support */
2678 if (params.vlan)
bdd90d5e 2679 return -EINVAL;
a97f4424 2680 if (params.ht_capa)
bdd90d5e 2681 return -EINVAL;
a97f4424 2682 if (params.listen_interval >= 0)
bdd90d5e
JB		 2683 return -EINVAL;
2684 /*
2685 * No special handling for TDLS here -- the userspace
2686 * mesh code doesn't have this bug.
2687 */
b39c48fa
JC		 2688 if (params.sta_flags_mask &
2689 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2690 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2691 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2692 return -EINVAL;
a97f4424
JB		 2693 break;
2694 default:
bdd90d5e 2695 return -EOPNOTSUPP;
034d655e
JB		 2696 }
2697
bdd90d5e 2698 /* be aware of params.vlan when changing code here */
5727ef1b 2699
79c97e97 2700 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2701
5727ef1b
JB		 2702 if (params.vlan)
2703 dev_put(params.vlan);
3b85875a 2704
5727ef1b
JB		 2705 return err;
2706}
2707
c75786c9
EP		 2708static struct nla_policy
2709nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2710 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2711 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2712};
2713
5727ef1b
JB		 2714static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2715{
4c476991 2716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2717 int err;
4c476991 2718 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2719 struct station_parameters params;
2720 u8 *mac_addr = NULL;
2721
2722 memset(&params, 0, sizeof(params));
2723
2724 if (!info->attrs[NL80211_ATTR_MAC])
2725 return -EINVAL;
2726
5727ef1b
JB		 2727 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2728 return -EINVAL;
2729
2730 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2731 return -EINVAL;
2732
0e956c13
TLSC		 2733 if (!info->attrs[NL80211_ATTR_STA_AID])
2734 return -EINVAL;
2735
5727ef1b
JB		 2736 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2737 params.supported_rates =
2738 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2739 params.supported_rates_len =
2740 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2741 params.listen_interval =
2742 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2743
0e956c13
TLSC		 2744 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2745 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2746 return -EINVAL;
51b50fbe 2747
36aedc90
JM		 2748 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2749 params.ht_capa =
2750 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2751
96b78dff
JC		 2752 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2753 params.plink_action =
2754 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2755
bdd90d5e
JB		 2756 if (!rdev->ops->add_station)
2757 return -EOPNOTSUPP;
2758
bdd3ae3d 2759 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2760 return -EINVAL;
2761
bdd90d5e
JB		 2762 switch (dev->ieee80211_ptr->iftype) {
2763 case NL80211_IFTYPE_AP:
2764 case NL80211_IFTYPE_AP_VLAN:
2765 case NL80211_IFTYPE_P2P_GO:
2766 /* parse WME attributes if sta is WME capable */
2767 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2768 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2769 info->attrs[NL80211_ATTR_STA_WME]) {
2770 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2771 struct nlattr *nla;
2772
2773 nla = info->attrs[NL80211_ATTR_STA_WME];
2774 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2775 nl80211_sta_wme_policy);
2776 if (err)
2777 return err;
2778
2779 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2780 params.uapsd_queues =
2781 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2782 if (params.uapsd_queues &
2783 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2784 return -EINVAL;
c75786c9 2785
bdd90d5e
JB		 2786 if (tb[NL80211_STA_WME_MAX_SP])
2787 params.max_sp =
2788 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 2789
bdd90d5e
JB		 2790 if (params.max_sp &
2791 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2792 return -EINVAL;
4319e193 2793
bdd90d5e
JB		 2794 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2795 }
2796 /* TDLS peers cannot be added */
2797 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 2798 return -EINVAL;
bdd90d5e
JB		 2799 /* but don't bother the driver with it */
2800 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 2801
bdd90d5e
JB		 2802 /* must be last in here for error handling */
2803 params.vlan = get_vlan(info, rdev);
2804 if (IS_ERR(params.vlan))
2805 return PTR_ERR(params.vlan);
2806 break;
2807 case NL80211_IFTYPE_MESH_POINT:
2808 /* TDLS peers cannot be added */
2809 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2810 return -EINVAL;
2811 break;
2812 case NL80211_IFTYPE_STATION:
2813 /* Only TDLS peers can be added */
2814 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2815 return -EINVAL;
2816 /* Can only add if TDLS ... */
2817 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2818 return -EOPNOTSUPP;
2819 /* ... with external setup is supported */
2820 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2821 return -EOPNOTSUPP;
2822 break;
2823 default:
2824 return -EOPNOTSUPP;
c75786c9
EP		 2825 }
2826
bdd90d5e 2827 /* be aware of params.vlan when changing code here */
5727ef1b 2828
79c97e97 2829 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2830
5727ef1b
JB		 2831 if (params.vlan)
2832 dev_put(params.vlan);
5727ef1b
JB		 2833 return err;
2834}
2835
2836static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2837{
4c476991
JB		 2838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2839 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2840 u8 *mac_addr = NULL;
2841
2842 if (info->attrs[NL80211_ATTR_MAC])
2843 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2844
e80cf853 2845 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2846 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2848 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2849 return -EINVAL;
5727ef1b 2850
4c476991
JB		 2851 if (!rdev->ops->del_station)
2852 return -EOPNOTSUPP;
3b85875a 2853
4c476991 2854 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2855}
2856
2ec600d6
LCC		 2857static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2858 int flags, struct net_device *dev,
2859 u8 *dst, u8 *next_hop,
2860 struct mpath_info *pinfo)
2861{
2862 void *hdr;
2863 struct nlattr *pinfoattr;
2864
2865 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2866 if (!hdr)
2867 return -1;
2868
2869 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2870 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2871 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2872
f5ea9120
JB		 2873 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2874
2ec600d6
LCC		 2875 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2876 if (!pinfoattr)
2877 goto nla_put_failure;
2878 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2879 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2880 pinfo->frame_qlen);
d19b3bf6
RP		 2881 if (pinfo->filled & MPATH_INFO_SN)
2882 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2883 pinfo->sn);
2ec600d6
LCC		 2884 if (pinfo->filled & MPATH_INFO_METRIC)
2885 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2886 pinfo->metric);
2887 if (pinfo->filled & MPATH_INFO_EXPTIME)
2888 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2889 pinfo->exptime);
2890 if (pinfo->filled & MPATH_INFO_FLAGS)
2891 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2892 pinfo->flags);
2893 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2894 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2895 pinfo->discovery_timeout);
2896 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2897 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2898 pinfo->discovery_retries);
2899
2900 nla_nest_end(msg, pinfoattr);
2901
2902 return genlmsg_end(msg, hdr);
2903
2904 nla_put_failure:
bc3ed28c
TG		 2905 genlmsg_cancel(msg, hdr);
2906 return -EMSGSIZE;
2ec600d6
LCC		 2907}
2908
2909static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2910 struct netlink_callback *cb)
2ec600d6 2911{
2ec600d6
LCC		 2912 struct mpath_info pinfo;
2913 struct cfg80211_registered_device *dev;
bba95fef 2914 struct net_device *netdev;
2ec600d6
LCC		 2915 u8 dst[ETH_ALEN];
2916 u8 next_hop[ETH_ALEN];
bba95fef 2917 int path_idx = cb->args[1];
2ec600d6 2918 int err;
2ec600d6 2919
67748893
JB		 2920 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2921 if (err)
2922 return err;
bba95fef
JB		 2923
2924 if (!dev->ops->dump_mpath) {
eec60b03 2925 err = -EOPNOTSUPP;
bba95fef
JB		 2926 goto out_err;
2927 }
2928
eec60b03
JM		 2929 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2930 err = -EOPNOTSUPP;
0448b5fc 2931 goto out_err;
eec60b03
JM		 2932 }
2933
bba95fef
JB		 2934 while (1) {
2935 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2936 dst, next_hop, &pinfo);
2937 if (err == -ENOENT)
2ec600d6 2938 break;
bba95fef 2939 if (err)
3b85875a 2940 goto out_err;
2ec600d6 2941
bba95fef
JB		 2942 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2943 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2944 netdev, dst, next_hop,
2945 &pinfo) < 0)
2946 goto out;
2ec600d6 2947
bba95fef 2948 path_idx++;
2ec600d6 2949 }
2ec600d6 2950
2ec600d6 2951
bba95fef
JB		 2952 out:
2953 cb->args[1] = path_idx;
2954 err = skb->len;
bba95fef 2955 out_err:
67748893 2956 nl80211_finish_netdev_dump(dev);
bba95fef 2957 return err;
2ec600d6
LCC		 2958}
2959
2960static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2961{
4c476991 2962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2963 int err;
4c476991 2964 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2965 struct mpath_info pinfo;
2966 struct sk_buff *msg;
2967 u8 *dst = NULL;
2968 u8 next_hop[ETH_ALEN];
2969
2970 memset(&pinfo, 0, sizeof(pinfo));
2971
2972 if (!info->attrs[NL80211_ATTR_MAC])
2973 return -EINVAL;
2974
2975 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2976
4c476991
JB		 2977 if (!rdev->ops->get_mpath)
2978 return -EOPNOTSUPP;
2ec600d6 2979
4c476991
JB		 2980 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2981 return -EOPNOTSUPP;
eec60b03 2982
79c97e97 2983 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2984 if (err)
4c476991 2985 return err;
2ec600d6 2986
fd2120ca 2987 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2988 if (!msg)
4c476991 2989 return -ENOMEM;
2ec600d6
LCC		 2990
2991 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2992 dev, dst, next_hop, &pinfo) < 0) {
2993 nlmsg_free(msg);
2994 return -ENOBUFS;
2995 }
3b85875a 2996
4c476991 2997 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2998}
2999
3000static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3001{
4c476991
JB		 3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3003 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3004 u8 *dst = NULL;
3005 u8 *next_hop = NULL;
3006
3007 if (!info->attrs[NL80211_ATTR_MAC])
3008 return -EINVAL;
3009
3010 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3011 return -EINVAL;
3012
3013 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3014 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3015
4c476991
JB		 3016 if (!rdev->ops->change_mpath)
3017 return -EOPNOTSUPP;
35a8efe1 3018
4c476991
JB		 3019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3020 return -EOPNOTSUPP;
2ec600d6 3021
4c476991 3022 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3023}
4c476991 3024
2ec600d6
LCC		 3025static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3026{
4c476991
JB		 3027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3028 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3029 u8 *dst = NULL;
3030 u8 *next_hop = NULL;
3031
3032 if (!info->attrs[NL80211_ATTR_MAC])
3033 return -EINVAL;
3034
3035 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3036 return -EINVAL;
3037
3038 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3039 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3040
4c476991
JB		 3041 if (!rdev->ops->add_mpath)
3042 return -EOPNOTSUPP;
35a8efe1 3043
4c476991
JB		 3044 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3045 return -EOPNOTSUPP;
2ec600d6 3046
4c476991 3047 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3048}
3049
3050static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3051{
4c476991
JB		 3052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3053 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3054 u8 *dst = NULL;
3055
3056 if (info->attrs[NL80211_ATTR_MAC])
3057 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3058
4c476991
JB		 3059 if (!rdev->ops->del_mpath)
3060 return -EOPNOTSUPP;
3b85875a 3061
4c476991 3062 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3063}
3064
9f1ba906
JM		 3065static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3066{
4c476991
JB		 3067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3068 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3069 struct bss_parameters params;
3070
3071 memset(&params, 0, sizeof(params));
3072 /* default to not changing parameters */
3073 params.use_cts_prot = -1;
3074 params.use_short_preamble = -1;
3075 params.use_short_slot_time = -1;
fd8aaaf3 3076 params.ap_isolate = -1;
50b12f59 3077 params.ht_opmode = -1;
9f1ba906
JM		 3078
3079 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3080 params.use_cts_prot =
3081 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3082 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3083 params.use_short_preamble =
3084 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3085 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3086 params.use_short_slot_time =
3087 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3088 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3089 params.basic_rates =
3090 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3091 params.basic_rates_len =
3092 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3093 }
fd8aaaf3
FF		 3094 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3095 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3096 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3097 params.ht_opmode =
3098 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3099
4c476991
JB		 3100 if (!rdev->ops->change_bss)
3101 return -EOPNOTSUPP;
9f1ba906 3102
074ac8df 3103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3104 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3105 return -EOPNOTSUPP;
3b85875a 3106
4c476991 3107 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3108}
3109
b54452b0 3110static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3111 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3112 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3113 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3114 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3115 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3116 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3117};
3118
3119static int parse_reg_rule(struct nlattr *tb[],
3120 struct ieee80211_reg_rule *reg_rule)
3121{
3122 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3123 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3124
3125 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3126 return -EINVAL;
3127 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3128 return -EINVAL;
3129 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3130 return -EINVAL;
3131 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3132 return -EINVAL;
3133 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3134 return -EINVAL;
3135
3136 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3137
3138 freq_range->start_freq_khz =
3139 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3140 freq_range->end_freq_khz =
3141 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3142 freq_range->max_bandwidth_khz =
3143 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3144
3145 power_rule->max_eirp =
3146 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3147
3148 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3149 power_rule->max_antenna_gain =
3150 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3151
3152 return 0;
3153}
3154
3155static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3156{
3157 int r;
3158 char *data = NULL;
3159
80778f18
LR		 3160 /*
3161 * You should only get this when cfg80211 hasn't yet initialized
3162 * completely when built-in to the kernel right between the time
3163 * window between nl80211_init() and regulatory_init(), if that is
3164 * even possible.
3165 */
3166 mutex_lock(&cfg80211_mutex);
3167 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3168 mutex_unlock(&cfg80211_mutex);
3169 return -EINPROGRESS;
80778f18 3170 }
fe33eb39 3171 mutex_unlock(&cfg80211_mutex);
80778f18 3172
fe33eb39
LR		 3173 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3174 return -EINVAL;
b2e1b302
LR		 3175
3176 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3177
fe33eb39
LR		 3178 r = regulatory_hint_user(data);
3179
b2e1b302
LR		 3180 return r;
3181}
3182
24bdd9f4 3183static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3184 struct genl_info *info)
93da9cc1 3185{
4c476991 3186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3187 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3188 struct wireless_dev *wdev = dev->ieee80211_ptr;
3189 struct mesh_config cur_params;
3190 int err = 0;
93da9cc1 3191 void *hdr;
3192 struct nlattr *pinfoattr;
3193 struct sk_buff *msg;
3194
29cbe68c
JB		 3195 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3196 return -EOPNOTSUPP;
3197
24bdd9f4 3198 if (!rdev->ops->get_mesh_config)
4c476991 3199 return -EOPNOTSUPP;
f3f92586 3200
29cbe68c
JB		 3201 wdev_lock(wdev);
3202 /* If not connected, get default parameters */
3203 if (!wdev->mesh_id_len)
3204 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3205 else
24bdd9f4 3206 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3207 &cur_params);
3208 wdev_unlock(wdev);
3209
93da9cc1 3210 if (err)
4c476991 3211 return err;
93da9cc1 3212
3213 /* Draw up a netlink message to send back */
fd2120ca 3214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3215 if (!msg)
3216 return -ENOMEM;
93da9cc1 3217 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3218 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3219 if (!hdr)
efe1cf0c 3220 goto out;
24bdd9f4 3221 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3222 if (!pinfoattr)
3223 goto nla_put_failure;
3224 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3225 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3226 cur_params.dot11MeshRetryTimeout);
3227 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3228 cur_params.dot11MeshConfirmTimeout);
3229 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3230 cur_params.dot11MeshHoldingTimeout);
3231 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3232 cur_params.dot11MeshMaxPeerLinks);
3233 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3234 cur_params.dot11MeshMaxRetries);
3235 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3236 cur_params.dot11MeshTTL);
45904f21
JC		 3237 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3238 cur_params.element_ttl);
93da9cc1 3239 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3240 cur_params.auto_open_plinks);
3241 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3242 cur_params.dot11MeshHWMPmaxPREQretries);
3243 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3244 cur_params.path_refresh_time);
3245 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3246 cur_params.min_discovery_timeout);
3247 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3248 cur_params.dot11MeshHWMPactivePathTimeout);
3249 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3250 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3251 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3252 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3253 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3254 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3255 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3256 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3257 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3258 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3259 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3260 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3261 nla_nest_end(msg, pinfoattr);
3262 genlmsg_end(msg, hdr);
4c476991 3263 return genlmsg_reply(msg, info);
93da9cc1 3264
3b85875a 3265 nla_put_failure:
93da9cc1 3266 genlmsg_cancel(msg, hdr);
efe1cf0c 3267 out:
d080e275 3268 nlmsg_free(msg);
4c476991 3269 return -ENOBUFS;
93da9cc1 3270}
3271
b54452b0 3272static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3273 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3274 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3275 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3276 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3277 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3278 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3279 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3280 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3281
3282 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3283 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3284 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3285 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3286 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3287 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3288 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3289 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3290 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3291 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3292};
3293
c80d545d
JC		 3294static const struct nla_policy
3295 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3296 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3297 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3298 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3299 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3300 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3301 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3302};
3303
24bdd9f4 3304static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3305 struct mesh_config *cfg,
3306 u32 *mask_out)
93da9cc1 3307{
93da9cc1 3308 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3309 u32 mask = 0;
93da9cc1 3310
bd90fdcc
JB		 3311#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3312do {\
3313 if (table[attr_num]) {\
3314 cfg->param = nla_fn(table[attr_num]); \
3315 mask |= (1 << (attr_num - 1)); \
3316 } \
3317} while (0);\
3318
3319
24bdd9f4 3320 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3321 return -EINVAL;
3322 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3323 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3324 nl80211_meshconf_params_policy))
93da9cc1 3325 return -EINVAL;
3326
93da9cc1 3327 /* This makes sure that there aren't more than 32 mesh config
3328 * parameters (otherwise our bitfield scheme would not work.) */
3329 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3330
3331 /* Fill in the params struct */
93da9cc1 3332 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3333 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3334 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3335 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3336 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3337 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3339 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3340 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3341 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3343 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3344 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3345 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3346 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3347 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3348 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3349 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3350 nla_get_u8);
3351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3352 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3353 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3354 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3355 nla_get_u16);
3356 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3357 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3358 nla_get_u32);
3359 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3360 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3361 nla_get_u16);
dca7e943
TP		 3362 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3363 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3364 nla_get_u16);
93da9cc1 3365 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3366 dot11MeshHWMPnetDiameterTraversalTime,
3367 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3368 nla_get_u16);
63c5723b
RP		 3369 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3370 dot11MeshHWMPRootMode, mask,
3371 NL80211_MESHCONF_HWMP_ROOTMODE,
3372 nla_get_u8);
0507e159
JC		 3373 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3374 dot11MeshHWMPRannInterval, mask,
3375 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3376 nla_get_u16);
16dd7267
JC		 3377 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3378 dot11MeshGateAnnouncementProtocol, mask,
3379 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3380 nla_get_u8);
bd90fdcc
JB		 3381 if (mask_out)
3382 *mask_out = mask;
c80d545d 3383
bd90fdcc
JB		 3384 return 0;
3385
3386#undef FILL_IN_MESH_PARAM_IF_SET
3387}
3388
c80d545d
JC		 3389static int nl80211_parse_mesh_setup(struct genl_info *info,
3390 struct mesh_setup *setup)
3391{
3392 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3393
3394 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3395 return -EINVAL;
3396 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3397 info->attrs[NL80211_ATTR_MESH_SETUP],
3398 nl80211_mesh_setup_params_policy))
3399 return -EINVAL;
3400
3401 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3402 setup->path_sel_proto =
3403 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3404 IEEE80211_PATH_PROTOCOL_VENDOR :
3405 IEEE80211_PATH_PROTOCOL_HWMP;
3406
3407 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3408 setup->path_metric =
3409 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3410 IEEE80211_PATH_METRIC_VENDOR :
3411 IEEE80211_PATH_METRIC_AIRTIME;
3412
581a8b0f
JC		 3413
3414 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3415 struct nlattr *ieattr =
581a8b0f 3416 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3417 if (!is_valid_ie_attr(ieattr))
3418 return -EINVAL;
581a8b0f
JC		 3419 setup->ie = nla_data(ieattr);
3420 setup->ie_len = nla_len(ieattr);
c80d545d 3421 }
b130e5ce
JC		 3422 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3423 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3424
3425 return 0;
3426}
3427
24bdd9f4 3428static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3429 struct genl_info *info)
bd90fdcc
JB		 3430{
3431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3432 struct net_device *dev = info->user_ptr[1];
29cbe68c 3433 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3434 struct mesh_config cfg;
3435 u32 mask;
3436 int err;
3437
29cbe68c
JB		 3438 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3439 return -EOPNOTSUPP;
3440
24bdd9f4 3441 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3442 return -EOPNOTSUPP;
3443
24bdd9f4 3444 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3445 if (err)
3446 return err;
3447
29cbe68c
JB		 3448 wdev_lock(wdev);
3449 if (!wdev->mesh_id_len)
3450 err = -ENOLINK;
3451
3452 if (!err)
24bdd9f4 3453 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3454 mask, &cfg);
3455
3456 wdev_unlock(wdev);
3457
3458 return err;
93da9cc1 3459}
3460
f130347c
LR		 3461static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3462{
3463 struct sk_buff *msg;
3464 void *hdr = NULL;
3465 struct nlattr *nl_reg_rules;
3466 unsigned int i;
3467 int err = -EINVAL;
3468
a1794390 3469 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3470
3471 if (!cfg80211_regdomain)
3472 goto out;
3473
fd2120ca 3474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3475 if (!msg) {
3476 err = -ENOBUFS;
3477 goto out;
3478 }
3479
3480 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3481 NL80211_CMD_GET_REG);
3482 if (!hdr)
efe1cf0c 3483 goto put_failure;
f130347c
LR		 3484
3485 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3486 cfg80211_regdomain->alpha2);
8b60b078
LR		 3487 if (cfg80211_regdomain->dfs_region)
3488 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3489 cfg80211_regdomain->dfs_region);
f130347c
LR		 3490
3491 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3492 if (!nl_reg_rules)
3493 goto nla_put_failure;
3494
3495 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3496 struct nlattr *nl_reg_rule;
3497 const struct ieee80211_reg_rule *reg_rule;
3498 const struct ieee80211_freq_range *freq_range;
3499 const struct ieee80211_power_rule *power_rule;
3500
3501 reg_rule = &cfg80211_regdomain->reg_rules[i];
3502 freq_range = &reg_rule->freq_range;
3503 power_rule = &reg_rule->power_rule;
3504
3505 nl_reg_rule = nla_nest_start(msg, i);
3506 if (!nl_reg_rule)
3507 goto nla_put_failure;
3508
3509 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3510 reg_rule->flags);
3511 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3512 freq_range->start_freq_khz);
3513 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3514 freq_range->end_freq_khz);
3515 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3516 freq_range->max_bandwidth_khz);
3517 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3518 power_rule->max_antenna_gain);
3519 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3520 power_rule->max_eirp);
3521
3522 nla_nest_end(msg, nl_reg_rule);
3523 }
3524
3525 nla_nest_end(msg, nl_reg_rules);
3526
3527 genlmsg_end(msg, hdr);
134e6375 3528 err = genlmsg_reply(msg, info);
f130347c
LR		 3529 goto out;
3530
3531nla_put_failure:
3532 genlmsg_cancel(msg, hdr);
efe1cf0c 3533put_failure:
d080e275 3534 nlmsg_free(msg);
f130347c
LR		 3535 err = -EMSGSIZE;
3536out:
a1794390 3537 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3538 return err;
3539}
3540
b2e1b302
LR		 3541static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3542{
3543 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3544 struct nlattr *nl_reg_rule;
3545 char *alpha2 = NULL;
3546 int rem_reg_rules = 0, r = 0;
3547 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3548 u8 dfs_region = 0;
b2e1b302
LR		 3549 struct ieee80211_regdomain *rd = NULL;
3550
3551 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3552 return -EINVAL;
3553
3554 if (!info->attrs[NL80211_ATTR_REG_RULES])
3555 return -EINVAL;
3556
3557 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3558
8b60b078
LR		 3559 if (info->attrs[NL80211_ATTR_DFS_REGION])
3560 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3561
b2e1b302
LR		 3562 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3563 rem_reg_rules) {
3564 num_rules++;
3565 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3566 return -EINVAL;
b2e1b302
LR		 3567 }
3568
61405e97
LR		 3569 mutex_lock(&cfg80211_mutex);
3570
d0e18f83
LR		 3571 if (!reg_is_valid_request(alpha2)) {
3572 r = -EINVAL;
3573 goto bad_reg;
3574 }
b2e1b302
LR		 3575
3576 size_of_regd = sizeof(struct ieee80211_regdomain) +
3577 (num_rules * sizeof(struct ieee80211_reg_rule));
3578
3579 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3580 if (!rd) {
3581 r = -ENOMEM;
3582 goto bad_reg;
3583 }
b2e1b302
LR		 3584
3585 rd->n_reg_rules = num_rules;
3586 rd->alpha2[0] = alpha2[0];
3587 rd->alpha2[1] = alpha2[1];
3588
8b60b078
LR		 3589 /*
3590 * Disable DFS master mode if the DFS region was
3591 * not supported or known on this kernel.
3592 */
3593 if (reg_supported_dfs_region(dfs_region))
3594 rd->dfs_region = dfs_region;
3595
b2e1b302
LR		 3596 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3597 rem_reg_rules) {
3598 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3599 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3600 reg_rule_policy);
3601 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3602 if (r)
3603 goto bad_reg;
3604
3605 rule_idx++;
3606
d0e18f83
LR		 3607 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3608 r = -EINVAL;
b2e1b302 3609 goto bad_reg;
d0e18f83 3610 }
b2e1b302
LR		 3611 }
3612
3613 BUG_ON(rule_idx != num_rules);
3614
b2e1b302 3615 r = set_regdom(rd);
61405e97 3616
a1794390 3617 mutex_unlock(&cfg80211_mutex);
d0e18f83 3618
b2e1b302
LR		 3619 return r;
3620
d2372b31 3621 bad_reg:
61405e97 3622 mutex_unlock(&cfg80211_mutex);
b2e1b302 3623 kfree(rd);
d0e18f83 3624 return r;
b2e1b302
LR		 3625}
3626
83f5e2cf
JB		 3627static int validate_scan_freqs(struct nlattr *freqs)
3628{
3629 struct nlattr *attr1, *attr2;
3630 int n_channels = 0, tmp1, tmp2;
3631
3632 nla_for_each_nested(attr1, freqs, tmp1) {
3633 n_channels++;
3634 /*
3635 * Some hardware has a limited channel list for
3636 * scanning, and it is pretty much nonsensical
3637 * to scan for a channel twice, so disallow that
3638 * and don't require drivers to check that the
3639 * channel list they get isn't longer than what
3640 * they can scan, as long as they can scan all
3641 * the channels they registered at once.
3642 */
3643 nla_for_each_nested(attr2, freqs, tmp2)
3644 if (attr1 != attr2 &&
3645 nla_get_u32(attr1) == nla_get_u32(attr2))
3646 return 0;
3647 }
3648
3649 return n_channels;
3650}
3651
2a519311
JB		 3652static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3653{
4c476991
JB		 3654 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3655 struct net_device *dev = info->user_ptr[1];
2a519311 3656 struct cfg80211_scan_request *request;
2a519311
JB		 3657 struct nlattr *attr;
3658 struct wiphy *wiphy;
83f5e2cf 3659 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3660 size_t ie_len;
2a519311 3661
f4a11bb0
JB		 3662 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3663 return -EINVAL;
3664
79c97e97 3665 wiphy = &rdev->wiphy;
2a519311 3666
4c476991
JB		 3667 if (!rdev->ops->scan)
3668 return -EOPNOTSUPP;
2a519311 3669
4c476991
JB		 3670 if (rdev->scan_req)
3671 return -EBUSY;
2a519311
JB		 3672
3673 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3674 n_channels = validate_scan_freqs(
3675 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3676 if (!n_channels)
3677 return -EINVAL;
2a519311 3678 } else {
34850ab2 3679 enum ieee80211_band band;
83f5e2cf
JB		 3680 n_channels = 0;
3681
2a519311
JB		 3682 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3683 if (wiphy->bands[band])
3684 n_channels += wiphy->bands[band]->n_channels;
3685 }
3686
3687 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3688 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3689 n_ssids++;
3690
4c476991
JB		 3691 if (n_ssids > wiphy->max_scan_ssids)
3692 return -EINVAL;
2a519311 3693
70692ad2
JM		 3694 if (info->attrs[NL80211_ATTR_IE])
3695 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3696 else
3697 ie_len = 0;
3698
4c476991
JB		 3699 if (ie_len > wiphy->max_scan_ie_len)
3700 return -EINVAL;
18a83659 3701
2a519311 3702 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3703 + sizeof(*request->ssids) * n_ssids
3704 + sizeof(*request->channels) * n_channels
70692ad2 3705 + ie_len, GFP_KERNEL);
4c476991
JB		 3706 if (!request)
3707 return -ENOMEM;
2a519311 3708
2a519311 3709 if (n_ssids)
5ba63533 3710 request->ssids = (void *)&request->channels[n_channels];
2a519311 3711 request->n_ssids = n_ssids;
70692ad2
JM		 3712 if (ie_len) {
3713 if (request->ssids)
3714 request->ie = (void *)(request->ssids + n_ssids);
3715 else
3716 request->ie = (void *)(request->channels + n_channels);
3717 }
2a519311 3718
584991dc 3719 i = 0;
2a519311
JB		 3720 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3721 /* user specified, bail out if channel not found */
2a519311 3722 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3723 struct ieee80211_channel *chan;
3724
3725 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3726
3727 if (!chan) {
2a519311
JB		 3728 err = -EINVAL;
3729 goto out_free;
3730 }
584991dc
JB		 3731
3732 /* ignore disabled channels */
3733 if (chan->flags & IEEE80211_CHAN_DISABLED)
3734 continue;
3735
3736 request->channels[i] = chan;
2a519311
JB		 3737 i++;
3738 }
3739 } else {
34850ab2
JB		 3740 enum ieee80211_band band;
3741
2a519311 3742 /* all channels */
2a519311
JB		 3743 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3744 int j;
3745 if (!wiphy->bands[band])
3746 continue;
3747 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3748 struct ieee80211_channel *chan;
3749
3750 chan = &wiphy->bands[band]->channels[j];
3751
3752 if (chan->flags & IEEE80211_CHAN_DISABLED)
3753 continue;
3754
3755 request->channels[i] = chan;
2a519311
JB		 3756 i++;
3757 }
3758 }
3759 }
3760
584991dc
JB		 3761 if (!i) {
3762 err = -EINVAL;
3763 goto out_free;
3764 }
3765
3766 request->n_channels = i;
3767
2a519311
JB		 3768 i = 0;
3769 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3770 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3771 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3772 err = -EINVAL;
3773 goto out_free;
3774 }
57a27e1d 3775 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3776 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3777 i++;
3778 }
3779 }
3780
70692ad2
JM		 3781 if (info->attrs[NL80211_ATTR_IE]) {
3782 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3783 memcpy((void *)request->ie,
3784 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3785 request->ie_len);
3786 }
3787
34850ab2 3788 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3789 if (wiphy->bands[i])
3790 request->rates[i] =
3791 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3792
3793 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3794 nla_for_each_nested(attr,
3795 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3796 tmp) {
3797 enum ieee80211_band band = nla_type(attr);
3798
84404623 3799 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3800 err = -EINVAL;
3801 goto out_free;
3802 }
3803 err = ieee80211_get_ratemask(wiphy->bands[band],
3804 nla_data(attr),
3805 nla_len(attr),
3806 &request->rates[band]);
3807 if (err)
3808 goto out_free;
3809 }
3810 }
3811
e9f935e3
RM		 3812 request->no_cck =
3813 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3814
463d0183 3815 request->dev = dev;
79c97e97 3816 request->wiphy = &rdev->wiphy;
2a519311 3817
79c97e97
JB		 3818 rdev->scan_req = request;
3819 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3820
463d0183 3821 if (!err) {
79c97e97 3822 nl80211_send_scan_start(rdev, dev);
463d0183 3823 dev_hold(dev);
4c476991 3824 } else {
2a519311 3825 out_free:
79c97e97 3826 rdev->scan_req = NULL;
2a519311
JB		 3827 kfree(request);
3828 }
3b85875a 3829
2a519311
JB		 3830 return err;
3831}
3832
807f8a8c
LC		 3833static int nl80211_start_sched_scan(struct sk_buff *skb,
3834 struct genl_info *info)
3835{
3836 struct cfg80211_sched_scan_request *request;
3837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3838 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3839 struct nlattr *attr;
3840 struct wiphy *wiphy;
a1f1c21c 3841 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3842 u32 interval;
807f8a8c
LC		 3843 enum ieee80211_band band;
3844 size_t ie_len;
a1f1c21c 3845 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3846
3847 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3848 !rdev->ops->sched_scan_start)
3849 return -EOPNOTSUPP;
3850
3851 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3852 return -EINVAL;
3853
bbe6ad6d
LC		 3854 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3855 return -EINVAL;
3856
3857 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3858 if (interval == 0)
3859 return -EINVAL;
3860
807f8a8c
LC		 3861 wiphy = &rdev->wiphy;
3862
3863 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3864 n_channels = validate_scan_freqs(
3865 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3866 if (!n_channels)
3867 return -EINVAL;
3868 } else {
3869 n_channels = 0;
3870
3871 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3872 if (wiphy->bands[band])
3873 n_channels += wiphy->bands[band]->n_channels;
3874 }
3875
3876 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3877 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3878 tmp)
3879 n_ssids++;
3880
93b6aa69 3881 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3882 return -EINVAL;
3883
a1f1c21c
LC		 3884 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3885 nla_for_each_nested(attr,
3886 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3887 tmp)
3888 n_match_sets++;
3889
3890 if (n_match_sets > wiphy->max_match_sets)
3891 return -EINVAL;
3892
807f8a8c
LC		 3893 if (info->attrs[NL80211_ATTR_IE])
3894 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3895 else
3896 ie_len = 0;
3897
5a865bad 3898 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3899 return -EINVAL;
3900
c10841ca
LC		 3901 mutex_lock(&rdev->sched_scan_mtx);
3902
3903 if (rdev->sched_scan_req) {
3904 err = -EINPROGRESS;
3905 goto out;
3906 }
3907
807f8a8c 3908 request = kzalloc(sizeof(*request)
a2cd43c5 3909 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3910 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3911 + sizeof(*request->channels) * n_channels
807f8a8c 3912 + ie_len, GFP_KERNEL);
c10841ca
LC		 3913 if (!request) {
3914 err = -ENOMEM;
3915 goto out;
3916 }
807f8a8c
LC		 3917
3918 if (n_ssids)
3919 request->ssids = (void *)&request->channels[n_channels];
3920 request->n_ssids = n_ssids;
3921 if (ie_len) {
3922 if (request->ssids)
3923 request->ie = (void *)(request->ssids + n_ssids);
3924 else
3925 request->ie = (void *)(request->channels + n_channels);
3926 }
3927
a1f1c21c
LC		 3928 if (n_match_sets) {
3929 if (request->ie)
3930 request->match_sets = (void *)(request->ie + ie_len);
3931 else if (request->ssids)
3932 request->match_sets =
3933 (void *)(request->ssids + n_ssids);
3934 else
3935 request->match_sets =
3936 (void *)(request->channels + n_channels);
3937 }
3938 request->n_match_sets = n_match_sets;
3939
807f8a8c
LC		 3940 i = 0;
3941 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3942 /* user specified, bail out if channel not found */
3943 nla_for_each_nested(attr,
3944 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3945 tmp) {
3946 struct ieee80211_channel *chan;
3947
3948 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3949
3950 if (!chan) {
3951 err = -EINVAL;
3952 goto out_free;
3953 }
3954
3955 /* ignore disabled channels */
3956 if (chan->flags & IEEE80211_CHAN_DISABLED)
3957 continue;
3958
3959 request->channels[i] = chan;
3960 i++;
3961 }
3962 } else {
3963 /* all channels */
3964 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3965 int j;
3966 if (!wiphy->bands[band])
3967 continue;
3968 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3969 struct ieee80211_channel *chan;
3970
3971 chan = &wiphy->bands[band]->channels[j];
3972
3973 if (chan->flags & IEEE80211_CHAN_DISABLED)
3974 continue;
3975
3976 request->channels[i] = chan;
3977 i++;
3978 }
3979 }
3980 }
3981
3982 if (!i) {
3983 err = -EINVAL;
3984 goto out_free;
3985 }
3986
3987 request->n_channels = i;
3988
3989 i = 0;
3990 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3991 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3992 tmp) {
57a27e1d 3993 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3994 err = -EINVAL;
3995 goto out_free;
3996 }
57a27e1d 3997 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3998 memcpy(request->ssids[i].ssid, nla_data(attr),
3999 nla_len(attr));
807f8a8c
LC		 4000 i++;
4001 }
4002 }
4003
a1f1c21c
LC		 4004 i = 0;
4005 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4006 nla_for_each_nested(attr,
4007 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4008 tmp) {
4009 struct nlattr *ssid;
4010
4011 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4012 nla_data(attr), nla_len(attr),
4013 nl80211_match_policy);
4014 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4015 if (ssid) {
4016 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4017 err = -EINVAL;
4018 goto out_free;
4019 }
4020 memcpy(request->match_sets[i].ssid.ssid,
4021 nla_data(ssid), nla_len(ssid));
4022 request->match_sets[i].ssid.ssid_len =
4023 nla_len(ssid);
4024 }
4025 i++;
4026 }
4027 }
4028
807f8a8c
LC		 4029 if (info->attrs[NL80211_ATTR_IE]) {
4030 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4031 memcpy((void *)request->ie,
4032 nla_data(info->attrs[NL80211_ATTR_IE]),
4033 request->ie_len);
4034 }
4035
4036 request->dev = dev;
4037 request->wiphy = &rdev->wiphy;
bbe6ad6d 4038 request->interval = interval;
807f8a8c
LC		 4039
4040 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4041 if (!err) {
4042 rdev->sched_scan_req = request;
4043 nl80211_send_sched_scan(rdev, dev,
4044 NL80211_CMD_START_SCHED_SCAN);
4045 goto out;
4046 }
4047
4048out_free:
4049 kfree(request);
4050out:
c10841ca 4051 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4052 return err;
4053}
4054
4055static int nl80211_stop_sched_scan(struct sk_buff *skb,
4056 struct genl_info *info)
4057{
4058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4059 int err;
807f8a8c
LC		 4060
4061 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4062 !rdev->ops->sched_scan_stop)
4063 return -EOPNOTSUPP;
4064
c10841ca
LC		 4065 mutex_lock(&rdev->sched_scan_mtx);
4066 err = __cfg80211_stop_sched_scan(rdev, false);
4067 mutex_unlock(&rdev->sched_scan_mtx);
4068
4069 return err;
807f8a8c
LC		 4070}
4071
9720bb3a
JB		 4072static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4073 u32 seq, int flags,
2a519311 4074 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4075 struct wireless_dev *wdev,
4076 struct cfg80211_internal_bss *intbss)
2a519311 4077{
48ab905d 4078 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4079 void *hdr;
4080 struct nlattr *bss;
48ab905d
JB		 4081 int i;
4082
4083 ASSERT_WDEV_LOCK(wdev);
2a519311 4084
9720bb3a 4085 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4086 NL80211_CMD_NEW_SCAN_RESULTS);
4087 if (!hdr)
4088 return -1;
4089
9720bb3a
JB		 4090 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4091
f5ea9120 4092 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4093 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4094
4095 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4096 if (!bss)
4097 goto nla_put_failure;
4098 if (!is_zero_ether_addr(res->bssid))
4099 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4100 if (res->information_elements && res->len_information_elements)
4101 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4102 res->len_information_elements,
4103 res->information_elements);
34a6eddb
JM		 4104 if (res->beacon_ies && res->len_beacon_ies &&
4105 res->beacon_ies != res->information_elements)
4106 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4107 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4108 if (res->tsf)
4109 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4110 if (res->beacon_interval)
4111 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4112 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4113 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4114 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4115 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4116
77965c97 4117 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4118 case CFG80211_SIGNAL_TYPE_MBM:
4119 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4120 break;
4121 case CFG80211_SIGNAL_TYPE_UNSPEC:
4122 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4123 break;
4124 default:
4125 break;
4126 }
4127
48ab905d 4128 switch (wdev->iftype) {
074ac8df 4129 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4130 case NL80211_IFTYPE_STATION:
4131 if (intbss == wdev->current_bss)
4132 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4133 NL80211_BSS_STATUS_ASSOCIATED);
4134 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4135 if (intbss != wdev->auth_bsses[i])
4136 continue;
4137 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4138 NL80211_BSS_STATUS_AUTHENTICATED);
4139 break;
4140 }
4141 break;
4142 case NL80211_IFTYPE_ADHOC:
4143 if (intbss == wdev->current_bss)
4144 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4145 NL80211_BSS_STATUS_IBSS_JOINED);
4146 break;
4147 default:
4148 break;
4149 }
4150
2a519311
JB		 4151 nla_nest_end(msg, bss);
4152
4153 return genlmsg_end(msg, hdr);
4154
4155 nla_put_failure:
4156 genlmsg_cancel(msg, hdr);
4157 return -EMSGSIZE;
4158}
4159
4160static int nl80211_dump_scan(struct sk_buff *skb,
4161 struct netlink_callback *cb)
4162{
48ab905d
JB		 4163 struct cfg80211_registered_device *rdev;
4164 struct net_device *dev;
2a519311 4165 struct cfg80211_internal_bss *scan;
48ab905d 4166 struct wireless_dev *wdev;
2a519311
JB		 4167 int start = cb->args[1], idx = 0;
4168 int err;
4169
67748893
JB		 4170 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4171 if (err)
4172 return err;
2a519311 4173
48ab905d 4174 wdev = dev->ieee80211_ptr;
2a519311 4175
48ab905d
JB		 4176 wdev_lock(wdev);
4177 spin_lock_bh(&rdev->bss_lock);
4178 cfg80211_bss_expire(rdev);
4179
9720bb3a
JB		 4180 cb->seq = rdev->bss_generation;
4181
48ab905d 4182 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4183 if (++idx <= start)
4184 continue;
9720bb3a 4185 if (nl80211_send_bss(skb, cb,
2a519311 4186 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4187 rdev, wdev, scan) < 0) {
2a519311 4188 idx--;
67748893 4189 break;
2a519311
JB		 4190 }
4191 }
4192
48ab905d
JB		 4193 spin_unlock_bh(&rdev->bss_lock);
4194 wdev_unlock(wdev);
2a519311
JB		 4195
4196 cb->args[1] = idx;
67748893 4197 nl80211_finish_netdev_dump(rdev);
2a519311 4198
67748893 4199 return skb->len;
2a519311
JB		 4200}
4201
61fa713c
HS		 4202static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4203 int flags, struct net_device *dev,
4204 struct survey_info *survey)
4205{
4206 void *hdr;
4207 struct nlattr *infoattr;
4208
61fa713c
HS		 4209 hdr = nl80211hdr_put(msg, pid, seq, flags,
4210 NL80211_CMD_NEW_SURVEY_RESULTS);
4211 if (!hdr)
4212 return -ENOMEM;
4213
4214 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4215
4216 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4217 if (!infoattr)
4218 goto nla_put_failure;
4219
4220 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4221 survey->channel->center_freq);
4222 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4223 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4224 survey->noise);
17e5a808
FF		 4225 if (survey->filled & SURVEY_INFO_IN_USE)
4226 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4227 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4228 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4229 survey->channel_time);
4230 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4231 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4232 survey->channel_time_busy);
4233 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4234 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4235 survey->channel_time_ext_busy);
4236 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4237 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4238 survey->channel_time_rx);
4239 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4240 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4241 survey->channel_time_tx);
61fa713c
HS		 4242
4243 nla_nest_end(msg, infoattr);
4244
4245 return genlmsg_end(msg, hdr);
4246
4247 nla_put_failure:
4248 genlmsg_cancel(msg, hdr);
4249 return -EMSGSIZE;
4250}
4251
4252static int nl80211_dump_survey(struct sk_buff *skb,
4253 struct netlink_callback *cb)
4254{
4255 struct survey_info survey;
4256 struct cfg80211_registered_device *dev;
4257 struct net_device *netdev;
61fa713c
HS		 4258 int survey_idx = cb->args[1];
4259 int res;
4260
67748893
JB		 4261 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4262 if (res)
4263 return res;
61fa713c
HS		 4264
4265 if (!dev->ops->dump_survey) {
4266 res = -EOPNOTSUPP;
4267 goto out_err;
4268 }
4269
4270 while (1) {
180cdc79
LR		 4271 struct ieee80211_channel *chan;
4272
61fa713c
HS		 4273 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4274 &survey);
4275 if (res == -ENOENT)
4276 break;
4277 if (res)
4278 goto out_err;
4279
180cdc79
LR		 4280 /* Survey without a channel doesn't make sense */
4281 if (!survey.channel) {
4282 res = -EINVAL;
4283 goto out;
4284 }
4285
4286 chan = ieee80211_get_channel(&dev->wiphy,
4287 survey.channel->center_freq);
4288 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4289 survey_idx++;
4290 continue;
4291 }
4292
61fa713c
HS		 4293 if (nl80211_send_survey(skb,
4294 NETLINK_CB(cb->skb).pid,
4295 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4296 netdev,
4297 &survey) < 0)
4298 goto out;
4299 survey_idx++;
4300 }
4301
4302 out:
4303 cb->args[1] = survey_idx;
4304 res = skb->len;
4305 out_err:
67748893 4306 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4307 return res;
4308}
4309
255e737e
JM		 4310static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4311{
b23aa676
SO		 4312 return auth_type <= NL80211_AUTHTYPE_MAX;
4313}
4314
4315static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4316{
4317 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4318 NL80211_WPA_VERSION_2));
4319}
4320
636a5d36
JM		 4321static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4322{
4c476991
JB		 4323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4324 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4325 struct ieee80211_channel *chan;
4326 const u8 *bssid, *ssid, *ie = NULL;
4327 int err, ssid_len, ie_len = 0;
4328 enum nl80211_auth_type auth_type;
fffd0934 4329 struct key_parse key;
d5cdfacb 4330 bool local_state_change;
636a5d36 4331
f4a11bb0
JB		 4332 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4333 return -EINVAL;
4334
4335 if (!info->attrs[NL80211_ATTR_MAC])
4336 return -EINVAL;
4337
1778092e
JM		 4338 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4339 return -EINVAL;
4340
19957bb3
JB		 4341 if (!info->attrs[NL80211_ATTR_SSID])
4342 return -EINVAL;
4343
4344 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4345 return -EINVAL;
4346
fffd0934
JB		 4347 err = nl80211_parse_key(info, &key);
4348 if (err)
4349 return err;
4350
4351 if (key.idx >= 0) {
e31b8213
JB		 4352 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4353 return -EINVAL;
fffd0934
JB		 4354 if (!key.p.key || !key.p.key_len)
4355 return -EINVAL;
4356 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4357 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4358 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4359 key.p.key_len != WLAN_KEY_LEN_WEP104))
4360 return -EINVAL;
4361 if (key.idx > 4)
4362 return -EINVAL;
4363 } else {
4364 key.p.key_len = 0;
4365 key.p.key = NULL;
4366 }
4367
afea0b7a
JB		 4368 if (key.idx >= 0) {
4369 int i;
4370 bool ok = false;
4371 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4372 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4373 ok = true;
4374 break;
4375 }
4376 }
4c476991
JB		 4377 if (!ok)
4378 return -EINVAL;
afea0b7a
JB		 4379 }
4380
4c476991
JB		 4381 if (!rdev->ops->auth)
4382 return -EOPNOTSUPP;
636a5d36 4383
074ac8df 4384 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4385 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4386 return -EOPNOTSUPP;
eec60b03 4387
19957bb3 4388 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4389 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4390 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4391 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4392 return -EINVAL;
636a5d36 4393
19957bb3
JB		 4394 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4395 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4396
4397 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4398 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4399 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4400 }
4401
19957bb3 4402 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4403 if (!nl80211_valid_auth_type(auth_type))
4404 return -EINVAL;
636a5d36 4405
d5cdfacb
JM		 4406 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4407
4c476991
JB		 4408 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4409 ssid, ssid_len, ie, ie_len,
4410 key.p.key, key.p.key_len, key.idx,
4411 local_state_change);
636a5d36
JM		 4412}
4413
c0692b8f
JB		 4414static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4415 struct genl_info *info,
3dc27d25
JB		 4416 struct cfg80211_crypto_settings *settings,
4417 int cipher_limit)
b23aa676 4418{
c0b2bbd8
JB		 4419 memset(settings, 0, sizeof(*settings));
4420
b23aa676
SO		 4421 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4422
c0692b8f
JB		 4423 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4424 u16 proto;
4425 proto = nla_get_u16(
4426 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4427 settings->control_port_ethertype = cpu_to_be16(proto);
4428 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4429 proto != ETH_P_PAE)
4430 return -EINVAL;
4431 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4432 settings->control_port_no_encrypt = true;
4433 } else
4434 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4435
b23aa676
SO		 4436 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4437 void *data;
4438 int len, i;
4439
4440 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4441 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4442 settings->n_ciphers_pairwise = len / sizeof(u32);
4443
4444 if (len % sizeof(u32))
4445 return -EINVAL;
4446
3dc27d25 4447 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4448 return -EINVAL;
4449
4450 memcpy(settings->ciphers_pairwise, data, len);
4451
4452 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4453 if (!cfg80211_supported_cipher_suite(
4454 &rdev->wiphy,
b23aa676
SO		 4455 settings->ciphers_pairwise[i]))
4456 return -EINVAL;
4457 }
4458
4459 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4460 settings->cipher_group =
4461 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4462 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4463 settings->cipher_group))
b23aa676
SO		 4464 return -EINVAL;
4465 }
4466
4467 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4468 settings->wpa_versions =
4469 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4470 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4471 return -EINVAL;
4472 }
4473
4474 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4475 void *data;
6d30240e 4476 int len;
b23aa676
SO		 4477
4478 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4479 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4480 settings->n_akm_suites = len / sizeof(u32);
4481
4482 if (len % sizeof(u32))
4483 return -EINVAL;
4484
1b9ca027
JM		 4485 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4486 return -EINVAL;
4487
b23aa676 4488 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4489 }
4490
4491 return 0;
4492}
4493
636a5d36
JM		 4494static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4495{
4c476991
JB		 4496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4497 struct net_device *dev = info->user_ptr[1];
19957bb3 4498 struct cfg80211_crypto_settings crypto;
f444de05 4499 struct ieee80211_channel *chan;
3e5d7649 4500 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4501 int err, ssid_len, ie_len = 0;
4502 bool use_mfp = false;
7e7c8926
BG		 4503 u32 flags = 0;
4504 struct ieee80211_ht_cap *ht_capa = NULL;
4505 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4506
f4a11bb0
JB		 4507 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4508 return -EINVAL;
4509
4510 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4511 !info->attrs[NL80211_ATTR_SSID] ||
4512 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4513 return -EINVAL;
4514
4c476991
JB		 4515 if (!rdev->ops->assoc)
4516 return -EOPNOTSUPP;
636a5d36 4517
074ac8df 4518 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4519 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4520 return -EOPNOTSUPP;
eec60b03 4521
19957bb3 4522 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4523
19957bb3
JB		 4524 chan = ieee80211_get_channel(&rdev->wiphy,
4525 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4526 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4527 return -EINVAL;
636a5d36 4528
19957bb3
JB		 4529 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4530 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4531
4532 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4533 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4534 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4535 }
4536
dc6382ce 4537 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4538 enum nl80211_mfp mfp =
dc6382ce 4539 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4540 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4541 use_mfp = true;
4c476991
JB		 4542 else if (mfp != NL80211_MFP_NO)
4543 return -EINVAL;
dc6382ce
JM		 4544 }
4545
3e5d7649
JB		 4546 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4547 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4548
7e7c8926
BG		 4549 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4550 flags |= ASSOC_REQ_DISABLE_HT;
4551
4552 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4553 ht_capa_mask =
4554 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4555
4556 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4557 if (!ht_capa_mask)
4558 return -EINVAL;
4559 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4560 }
4561
c0692b8f 4562 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4563 if (!err)
3e5d7649
JB		 4564 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4565 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4566 &crypto, flags, ht_capa,
4567 ht_capa_mask);
636a5d36 4568
636a5d36
JM		 4569 return err;
4570}
4571
4572static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4573{
4c476991
JB		 4574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4575 struct net_device *dev = info->user_ptr[1];
19957bb3 4576 const u8 *ie = NULL, *bssid;
4c476991 4577 int ie_len = 0;
19957bb3 4578 u16 reason_code;
d5cdfacb 4579 bool local_state_change;
636a5d36 4580
f4a11bb0
JB		 4581 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4582 return -EINVAL;
4583
4584 if (!info->attrs[NL80211_ATTR_MAC])
4585 return -EINVAL;
4586
4587 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4588 return -EINVAL;
4589
4c476991
JB		 4590 if (!rdev->ops->deauth)
4591 return -EOPNOTSUPP;
636a5d36 4592
074ac8df 4593 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4594 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4595 return -EOPNOTSUPP;
eec60b03 4596
19957bb3 4597 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4598
19957bb3
JB		 4599 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4600 if (reason_code == 0) {
f4a11bb0 4601 /* Reason Code 0 is reserved */
4c476991 4602 return -EINVAL;
255e737e 4603 }
636a5d36
JM		 4604
4605 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4606 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4608 }
4609
d5cdfacb
JM		 4610 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4611
4c476991
JB		 4612 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4613 local_state_change);
636a5d36
JM		 4614}
4615
4616static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4617{
4c476991
JB		 4618 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4619 struct net_device *dev = info->user_ptr[1];
19957bb3 4620 const u8 *ie = NULL, *bssid;
4c476991 4621 int ie_len = 0;
19957bb3 4622 u16 reason_code;
d5cdfacb 4623 bool local_state_change;
636a5d36 4624
f4a11bb0
JB		 4625 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4626 return -EINVAL;
4627
4628 if (!info->attrs[NL80211_ATTR_MAC])
4629 return -EINVAL;
4630
4631 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4632 return -EINVAL;
4633
4c476991
JB		 4634 if (!rdev->ops->disassoc)
4635 return -EOPNOTSUPP;
636a5d36 4636
074ac8df 4637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4638 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4639 return -EOPNOTSUPP;
eec60b03 4640
19957bb3 4641 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4642
19957bb3
JB		 4643 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4644 if (reason_code == 0) {
f4a11bb0 4645 /* Reason Code 0 is reserved */
4c476991 4646 return -EINVAL;
255e737e 4647 }
636a5d36
JM		 4648
4649 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4650 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4651 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4652 }
4653
d5cdfacb
JM		 4654 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4655
4c476991
JB		 4656 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4657 local_state_change);
636a5d36
JM		 4658}
4659
dd5b4cc7
FF		 4660static bool
4661nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4662 int mcast_rate[IEEE80211_NUM_BANDS],
4663 int rateval)
4664{
4665 struct wiphy *wiphy = &rdev->wiphy;
4666 bool found = false;
4667 int band, i;
4668
4669 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4670 struct ieee80211_supported_band *sband;
4671
4672 sband = wiphy->bands[band];
4673 if (!sband)
4674 continue;
4675
4676 for (i = 0; i < sband->n_bitrates; i++) {
4677 if (sband->bitrates[i].bitrate == rateval) {
4678 mcast_rate[band] = i + 1;
4679 found = true;
4680 break;
4681 }
4682 }
4683 }
4684
4685 return found;
4686}
4687
04a773ad
JB		 4688static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4689{
4c476991
JB		 4690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4691 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4692 struct cfg80211_ibss_params ibss;
4693 struct wiphy *wiphy;
fffd0934 4694 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4695 int err;
4696
8e30bc55
JB		 4697 memset(&ibss, 0, sizeof(ibss));
4698
04a773ad
JB		 4699 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4700 return -EINVAL;
4701
4702 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4703 !info->attrs[NL80211_ATTR_SSID] ||
4704 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4705 return -EINVAL;
4706
8e30bc55
JB		 4707 ibss.beacon_interval = 100;
4708
4709 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4710 ibss.beacon_interval =
4711 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4712 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4713 return -EINVAL;
4714 }
4715
4c476991
JB		 4716 if (!rdev->ops->join_ibss)
4717 return -EOPNOTSUPP;
04a773ad 4718
4c476991
JB		 4719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4720 return -EOPNOTSUPP;
04a773ad 4721
79c97e97 4722 wiphy = &rdev->wiphy;
04a773ad 4723
39193498 4724 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4725 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4726
4727 if (!is_valid_ether_addr(ibss.bssid))
4728 return -EINVAL;
4729 }
04a773ad
JB		 4730 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4731 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4732
4733 if (info->attrs[NL80211_ATTR_IE]) {
4734 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4735 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4736 }
4737
54858ee5
AS		 4738 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4739 enum nl80211_channel_type channel_type;
4740
4741 channel_type = nla_get_u32(
4742 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4743 if (channel_type != NL80211_CHAN_NO_HT &&
4744 channel_type != NL80211_CHAN_HT20 &&
4745 channel_type != NL80211_CHAN_HT40MINUS &&
4746 channel_type != NL80211_CHAN_HT40PLUS)
4747 return -EINVAL;
4748
4749 if (channel_type != NL80211_CHAN_NO_HT &&
4750 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4751 return -EINVAL;
4752
4753 ibss.channel_type = channel_type;
4754 } else {
4755 ibss.channel_type = NL80211_CHAN_NO_HT;
4756 }
4757
4758 ibss.channel = rdev_freq_to_chan(rdev,
4759 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4760 ibss.channel_type);
04a773ad
JB		 4761 if (!ibss.channel ||
4762 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4763 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4764 return -EINVAL;
04a773ad 4765
54858ee5
AS		 4766 /* Both channels should be able to initiate communication */
4767 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4768 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4769 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4770 ibss.channel_type))
4771 return -EINVAL;
4772
04a773ad 4773 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4774 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4775
fbd2c8dc
TP		 4776 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4777 u8 *rates =
4778 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4779 int n_rates =
4780 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4781 struct ieee80211_supported_band *sband =
4782 wiphy->bands[ibss.channel->band];
fbd2c8dc 4783
34850ab2
JB		 4784 err = ieee80211_get_ratemask(sband, rates, n_rates,
4785 &ibss.basic_rates);
4786 if (err)
4787 return err;
fbd2c8dc 4788 }
dd5b4cc7
FF		 4789
4790 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4791 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4792 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4793 return -EINVAL;
fbd2c8dc 4794
4c476991
JB		 4795 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4796 connkeys = nl80211_parse_connkeys(rdev,
4797 info->attrs[NL80211_ATTR_KEYS]);
4798 if (IS_ERR(connkeys))
4799 return PTR_ERR(connkeys);
4800 }
04a773ad 4801
4c476991 4802 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4803 if (err)
4804 kfree(connkeys);
04a773ad
JB		 4805 return err;
4806}
4807
4808static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4809{
4c476991
JB		 4810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4811 struct net_device *dev = info->user_ptr[1];
04a773ad 4812
4c476991
JB		 4813 if (!rdev->ops->leave_ibss)
4814 return -EOPNOTSUPP;
04a773ad 4815
4c476991
JB		 4816 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4817 return -EOPNOTSUPP;
04a773ad 4818
4c476991 4819 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4820}
4821
aff89a9b
JB		 4822#ifdef CONFIG_NL80211_TESTMODE
4823static struct genl_multicast_group nl80211_testmode_mcgrp = {
4824 .name = "testmode",
4825};
4826
4827static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4828{
4c476991 4829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4830 int err;
4831
4832 if (!info->attrs[NL80211_ATTR_TESTDATA])
4833 return -EINVAL;
4834
aff89a9b
JB		 4835 err = -EOPNOTSUPP;
4836 if (rdev->ops->testmode_cmd) {
4837 rdev->testmode_info = info;
4838 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4839 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4840 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4841 rdev->testmode_info = NULL;
4842 }
4843
aff89a9b
JB		 4844 return err;
4845}
4846
71063f0e
WYG		 4847static int nl80211_testmode_dump(struct sk_buff *skb,
4848 struct netlink_callback *cb)
4849{
00918d33 4850 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4851 int err;
4852 long phy_idx;
4853 void *data = NULL;
4854 int data_len = 0;
4855
4856 if (cb->args[0]) {
4857 /*
4858 * 0 is a valid index, but not valid for args[0],
4859 * so we need to offset by 1.
4860 */
4861 phy_idx = cb->args[0] - 1;
4862 } else {
4863 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4864 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4865 nl80211_policy);
4866 if (err)
4867 return err;
00918d33
JB		 4868 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4869 phy_idx = nla_get_u32(
4870 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4871 } else {
4872 struct net_device *netdev;
4873
4874 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4875 nl80211_fam.attrbuf,
4876 &rdev, &netdev);
4877 if (err)
4878 return err;
4879 dev_put(netdev);
4880 phy_idx = rdev->wiphy_idx;
4881 cfg80211_unlock_rdev(rdev);
4882 }
71063f0e
WYG		 4883 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4884 cb->args[1] =
4885 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4886 }
4887
4888 if (cb->args[1]) {
4889 data = nla_data((void *)cb->args[1]);
4890 data_len = nla_len((void *)cb->args[1]);
4891 }
4892
4893 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4894 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4895 if (!rdev) {
71063f0e
WYG		 4896 mutex_unlock(&cfg80211_mutex);
4897 return -ENOENT;
4898 }
00918d33 4899 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4900 mutex_unlock(&cfg80211_mutex);
4901
00918d33 4902 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4903 err = -EOPNOTSUPP;
4904 goto out_err;
4905 }
4906
4907 while (1) {
4908 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4909 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4910 NL80211_CMD_TESTMODE);
4911 struct nlattr *tmdata;
4912
00918d33 4913 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4914 genlmsg_cancel(skb, hdr);
4915 break;
4916 }
4917
4918 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4919 if (!tmdata) {
4920 genlmsg_cancel(skb, hdr);
4921 break;
4922 }
00918d33
JB		 4923 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4924 data, data_len);
71063f0e
WYG		 4925 nla_nest_end(skb, tmdata);
4926
4927 if (err == -ENOBUFS || err == -ENOENT) {
4928 genlmsg_cancel(skb, hdr);
4929 break;
4930 } else if (err) {
4931 genlmsg_cancel(skb, hdr);
4932 goto out_err;
4933 }
4934
4935 genlmsg_end(skb, hdr);
4936 }
4937
4938 err = skb->len;
4939 /* see above */
4940 cb->args[0] = phy_idx + 1;
4941 out_err:
00918d33 4942 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 4943 return err;
4944}
4945
aff89a9b
JB		 4946static struct sk_buff *
4947__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4948 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4949{
4950 struct sk_buff *skb;
4951 void *hdr;
4952 struct nlattr *data;
4953
4954 skb = nlmsg_new(approxlen + 100, gfp);
4955 if (!skb)
4956 return NULL;
4957
4958 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4959 if (!hdr) {
4960 kfree_skb(skb);
4961 return NULL;
4962 }
4963
4964 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4965 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4966
4967 ((void **)skb->cb)[0] = rdev;
4968 ((void **)skb->cb)[1] = hdr;
4969 ((void **)skb->cb)[2] = data;
4970
4971 return skb;
4972
4973 nla_put_failure:
4974 kfree_skb(skb);
4975 return NULL;
4976}
4977
4978struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4979 int approxlen)
4980{
4981 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4982
4983 if (WARN_ON(!rdev->testmode_info))
4984 return NULL;
4985
4986 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4987 rdev->testmode_info->snd_pid,
4988 rdev->testmode_info->snd_seq,
4989 GFP_KERNEL);
4990}
4991EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4992
4993int cfg80211_testmode_reply(struct sk_buff *skb)
4994{
4995 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4996 void *hdr = ((void **)skb->cb)[1];
4997 struct nlattr *data = ((void **)skb->cb)[2];
4998
4999 if (WARN_ON(!rdev->testmode_info)) {
5000 kfree_skb(skb);
5001 return -EINVAL;
5002 }
5003
5004 nla_nest_end(skb, data);
5005 genlmsg_end(skb, hdr);
5006 return genlmsg_reply(skb, rdev->testmode_info);
5007}
5008EXPORT_SYMBOL(cfg80211_testmode_reply);
5009
5010struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5011 int approxlen, gfp_t gfp)
5012{
5013 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5014
5015 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5016}
5017EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5018
5019void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5020{
5021 void *hdr = ((void **)skb->cb)[1];
5022 struct nlattr *data = ((void **)skb->cb)[2];
5023
5024 nla_nest_end(skb, data);
5025 genlmsg_end(skb, hdr);
5026 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5027}
5028EXPORT_SYMBOL(cfg80211_testmode_event);
5029#endif
5030
b23aa676
SO		 5031static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5032{
4c476991
JB		 5033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5034 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5035 struct cfg80211_connect_params connect;
5036 struct wiphy *wiphy;
fffd0934 5037 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5038 int err;
5039
5040 memset(&connect, 0, sizeof(connect));
5041
5042 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5043 return -EINVAL;
5044
5045 if (!info->attrs[NL80211_ATTR_SSID] ||
5046 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5047 return -EINVAL;
5048
5049 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5050 connect.auth_type =
5051 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5052 if (!nl80211_valid_auth_type(connect.auth_type))
5053 return -EINVAL;
5054 } else
5055 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5056
5057 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5058
c0692b8f 5059 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5060 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5061 if (err)
5062 return err;
b23aa676 5063
074ac8df 5064 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5065 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5066 return -EOPNOTSUPP;
b23aa676 5067
79c97e97 5068 wiphy = &rdev->wiphy;
b23aa676 5069
b23aa676
SO		 5070 if (info->attrs[NL80211_ATTR_MAC])
5071 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5072 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5073 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5074
5075 if (info->attrs[NL80211_ATTR_IE]) {
5076 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5077 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5078 }
5079
5080 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5081 connect.channel =
5082 ieee80211_get_channel(wiphy,
5083 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5084 if (!connect.channel ||
4c476991
JB		 5085 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5086 return -EINVAL;
b23aa676
SO		 5087 }
5088
fffd0934
JB		 5089 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5090 connkeys = nl80211_parse_connkeys(rdev,
5091 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5092 if (IS_ERR(connkeys))
5093 return PTR_ERR(connkeys);
fffd0934
JB		 5094 }
5095
7e7c8926
BG		 5096 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5097 connect.flags |= ASSOC_REQ_DISABLE_HT;
5098
5099 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5100 memcpy(&connect.ht_capa_mask,
5101 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5102 sizeof(connect.ht_capa_mask));
5103
5104 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5105 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5106 return -EINVAL;
5107 memcpy(&connect.ht_capa,
5108 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5109 sizeof(connect.ht_capa));
5110 }
5111
fffd0934 5112 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5113 if (err)
5114 kfree(connkeys);
b23aa676
SO		 5115 return err;
5116}
5117
5118static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5119{
4c476991
JB		 5120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5121 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5122 u16 reason;
5123
5124 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5125 reason = WLAN_REASON_DEAUTH_LEAVING;
5126 else
5127 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5128
5129 if (reason == 0)
5130 return -EINVAL;
5131
074ac8df 5132 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5133 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5134 return -EOPNOTSUPP;
b23aa676 5135
4c476991 5136 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5137}
5138
463d0183
JB		 5139static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5140{
4c476991 5141 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5142 struct net *net;
5143 int err;
5144 u32 pid;
5145
5146 if (!info->attrs[NL80211_ATTR_PID])
5147 return -EINVAL;
5148
5149 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5150
463d0183 5151 net = get_net_ns_by_pid(pid);
4c476991
JB		 5152 if (IS_ERR(net))
5153 return PTR_ERR(net);
463d0183
JB		 5154
5155 err = 0;
5156
5157 /* check if anything to do */
4c476991
JB		 5158 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5159 err = cfg80211_switch_netns(rdev, net);
463d0183 5160
463d0183 5161 put_net(net);
463d0183
JB		 5162 return err;
5163}
5164
67fbb16b
SO		 5165static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5166{
4c476991 5167 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5168 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5169 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5170 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5171 struct cfg80211_pmksa pmksa;
5172
5173 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5174
5175 if (!info->attrs[NL80211_ATTR_MAC])
5176 return -EINVAL;
5177
5178 if (!info->attrs[NL80211_ATTR_PMKID])
5179 return -EINVAL;
5180
67fbb16b
SO		 5181 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5182 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5183
074ac8df 5184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5186 return -EOPNOTSUPP;
67fbb16b
SO		 5187
5188 switch (info->genlhdr->cmd) {
5189 case NL80211_CMD_SET_PMKSA:
5190 rdev_ops = rdev->ops->set_pmksa;
5191 break;
5192 case NL80211_CMD_DEL_PMKSA:
5193 rdev_ops = rdev->ops->del_pmksa;
5194 break;
5195 default:
5196 WARN_ON(1);
5197 break;
5198 }
5199
4c476991
JB		 5200 if (!rdev_ops)
5201 return -EOPNOTSUPP;
67fbb16b 5202
4c476991 5203 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5204}
5205
5206static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5207{
4c476991
JB		 5208 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5209 struct net_device *dev = info->user_ptr[1];
67fbb16b 5210
074ac8df 5211 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5212 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5213 return -EOPNOTSUPP;
67fbb16b 5214
4c476991
JB		 5215 if (!rdev->ops->flush_pmksa)
5216 return -EOPNOTSUPP;
67fbb16b 5217
4c476991 5218 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5219}
5220
109086ce
AN		 5221static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5222{
5223 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5224 struct net_device *dev = info->user_ptr[1];
5225 u8 action_code, dialog_token;
5226 u16 status_code;
5227 u8 *peer;
5228
5229 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5230 !rdev->ops->tdls_mgmt)
5231 return -EOPNOTSUPP;
5232
5233 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5234 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5235 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5236 !info->attrs[NL80211_ATTR_IE] ||
5237 !info->attrs[NL80211_ATTR_MAC])
5238 return -EINVAL;
5239
5240 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5241 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5242 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5243 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5244
5245 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5246 dialog_token, status_code,
5247 nla_data(info->attrs[NL80211_ATTR_IE]),
5248 nla_len(info->attrs[NL80211_ATTR_IE]));
5249}
5250
5251static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5252{
5253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5254 struct net_device *dev = info->user_ptr[1];
5255 enum nl80211_tdls_operation operation;
5256 u8 *peer;
5257
5258 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5259 !rdev->ops->tdls_oper)
5260 return -EOPNOTSUPP;
5261
5262 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5263 !info->attrs[NL80211_ATTR_MAC])
5264 return -EINVAL;
5265
5266 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5267 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5268
5269 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5270}
5271
9588bbd5
JM		 5272static int nl80211_remain_on_channel(struct sk_buff *skb,
5273 struct genl_info *info)
5274{
4c476991
JB		 5275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5276 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5277 struct ieee80211_channel *chan;
5278 struct sk_buff *msg;
5279 void *hdr;
5280 u64 cookie;
5281 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5282 u32 freq, duration;
5283 int err;
5284
5285 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5286 !info->attrs[NL80211_ATTR_DURATION])
5287 return -EINVAL;
5288
5289 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5290
5291 /*
5292 * We should be on that channel for at least one jiffie,
5293 * and more than 5 seconds seems excessive.
5294 */
a293911d
JB		 5295 if (!duration || !msecs_to_jiffies(duration) ||
5296 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5297 return -EINVAL;
5298
7c4ef712
JB		 5299 if (!rdev->ops->remain_on_channel ||
5300 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5301 return -EOPNOTSUPP;
9588bbd5 5302
9588bbd5
JM		 5303 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5304 channel_type = nla_get_u32(
5305 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5306 if (channel_type != NL80211_CHAN_NO_HT &&
5307 channel_type != NL80211_CHAN_HT20 &&
5308 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5309 channel_type != NL80211_CHAN_HT40MINUS)
5310 return -EINVAL;
9588bbd5
JM		 5311 }
5312
5313 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5314 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5315 if (chan == NULL)
5316 return -EINVAL;
9588bbd5
JM		 5317
5318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5319 if (!msg)
5320 return -ENOMEM;
9588bbd5
JM		 5321
5322 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5323 NL80211_CMD_REMAIN_ON_CHANNEL);
5324
5325 if (IS_ERR(hdr)) {
5326 err = PTR_ERR(hdr);
5327 goto free_msg;
5328 }
5329
5330 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5331 channel_type, duration, &cookie);
5332
5333 if (err)
5334 goto free_msg;
5335
5336 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5337
5338 genlmsg_end(msg, hdr);
4c476991
JB		 5339
5340 return genlmsg_reply(msg, info);
9588bbd5
JM		 5341
5342 nla_put_failure:
5343 err = -ENOBUFS;
5344 free_msg:
5345 nlmsg_free(msg);
9588bbd5
JM		 5346 return err;
5347}
5348
5349static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5350 struct genl_info *info)
5351{
4c476991
JB		 5352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5353 struct net_device *dev = info->user_ptr[1];
9588bbd5 5354 u64 cookie;
9588bbd5
JM		 5355
5356 if (!info->attrs[NL80211_ATTR_COOKIE])
5357 return -EINVAL;
5358
4c476991
JB		 5359 if (!rdev->ops->cancel_remain_on_channel)
5360 return -EOPNOTSUPP;
9588bbd5 5361
9588bbd5
JM		 5362 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5363
4c476991 5364 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5365}
5366
13ae75b1
JM		 5367static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5368 u8 *rates, u8 rates_len)
5369{
5370 u8 i;
5371 u32 mask = 0;
5372
5373 for (i = 0; i < rates_len; i++) {
5374 int rate = (rates[i] & 0x7f) * 5;
5375 int ridx;
5376 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5377 struct ieee80211_rate *srate =
5378 &sband->bitrates[ridx];
5379 if (rate == srate->bitrate) {
5380 mask |= 1 << ridx;
5381 break;
5382 }
5383 }
5384 if (ridx == sband->n_bitrates)
5385 return 0; /* rate not found */
5386 }
5387
5388 return mask;
5389}
5390
b54452b0 5391static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5392 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5393 .len = NL80211_MAX_SUPP_RATES },
5394};
5395
5396static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5397 struct genl_info *info)
5398{
5399 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5401 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5402 int rem, i;
5403 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5404 struct nlattr *tx_rates;
5405 struct ieee80211_supported_band *sband;
5406
5407 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5408 return -EINVAL;
5409
4c476991
JB		 5410 if (!rdev->ops->set_bitrate_mask)
5411 return -EOPNOTSUPP;
13ae75b1
JM		 5412
5413 memset(&mask, 0, sizeof(mask));
5414 /* Default to all rates enabled */
5415 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5416 sband = rdev->wiphy.bands[i];
5417 mask.control[i].legacy =
5418 sband ? (1 << sband->n_bitrates) - 1 : 0;
5419 }
5420
5421 /*
5422 * The nested attribute uses enum nl80211_band as the index. This maps
5423 * directly to the enum ieee80211_band values used in cfg80211.
5424 */
5425 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5426 {
5427 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5428 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5429 return -EINVAL;
13ae75b1 5430 sband = rdev->wiphy.bands[band];
4c476991
JB		 5431 if (sband == NULL)
5432 return -EINVAL;
13ae75b1
JM		 5433 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5434 nla_len(tx_rates), nl80211_txattr_policy);
5435 if (tb[NL80211_TXRATE_LEGACY]) {
5436 mask.control[band].legacy = rateset_to_mask(
5437 sband,
5438 nla_data(tb[NL80211_TXRATE_LEGACY]),
5439 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5440 if (mask.control[band].legacy == 0)
5441 return -EINVAL;
13ae75b1
JM		 5442 }
5443 }
5444
4c476991 5445 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5446}
5447
2e161f78 5448static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5449{
4c476991
JB		 5450 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5451 struct net_device *dev = info->user_ptr[1];
2e161f78 5452 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5453
5454 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5455 return -EINVAL;
5456
2e161f78
JB		 5457 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5458 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5459
9d38d85d 5460 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5461 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5462 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5463 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5466 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5467 return -EOPNOTSUPP;
026331c4
JM		 5468
5469 /* not much point in registering if we can't reply */
4c476991
JB		 5470 if (!rdev->ops->mgmt_tx)
5471 return -EOPNOTSUPP;
026331c4 5472
4c476991 5473 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5474 frame_type,
026331c4
JM		 5475 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5476 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5477}
5478
2e161f78 5479static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5480{
4c476991
JB		 5481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5482 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5483 struct ieee80211_channel *chan;
5484 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5485 bool channel_type_valid = false;
026331c4
JM		 5486 u32 freq;
5487 int err;
d64d373f 5488 void *hdr = NULL;
026331c4 5489 u64 cookie;
e247bd90 5490 struct sk_buff *msg = NULL;
f7ca38df 5491 unsigned int wait = 0;
e247bd90
JB		 5492 bool offchan, no_cck, dont_wait_for_ack;
5493
5494 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5495
5496 if (!info->attrs[NL80211_ATTR_FRAME] ||
5497 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5498 return -EINVAL;
5499
4c476991
JB		 5500 if (!rdev->ops->mgmt_tx)
5501 return -EOPNOTSUPP;
026331c4 5502
9d38d85d 5503 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5504 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5505 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5506 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5507 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5508 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5509 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5510 return -EOPNOTSUPP;
026331c4 5511
f7ca38df 5512 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5513 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5514 return -EINVAL;
5515 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5516 }
5517
026331c4
JM		 5518 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5519 channel_type = nla_get_u32(
5520 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5521 if (channel_type != NL80211_CHAN_NO_HT &&
5522 channel_type != NL80211_CHAN_HT20 &&
5523 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5524 channel_type != NL80211_CHAN_HT40MINUS)
5525 return -EINVAL;
252aa631 5526 channel_type_valid = true;
026331c4
JM		 5527 }
5528
f7ca38df
JB		 5529 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5530
7c4ef712
JB		 5531 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5532 return -EINVAL;
5533
e9f935e3
RM		 5534 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5535
026331c4
JM		 5536 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5537 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5538 if (chan == NULL)
5539 return -EINVAL;
026331c4 5540
e247bd90
JB		 5541 if (!dont_wait_for_ack) {
5542 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5543 if (!msg)
5544 return -ENOMEM;
026331c4 5545
e247bd90
JB		 5546 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5547 NL80211_CMD_FRAME);
026331c4 5548
e247bd90
JB		 5549 if (IS_ERR(hdr)) {
5550 err = PTR_ERR(hdr);
5551 goto free_msg;
5552 }
026331c4 5553 }
e247bd90 5554
f7ca38df
JB		 5555 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5556 channel_type_valid, wait,
2e161f78
JB		 5557 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5558 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5559 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5560 if (err)
5561 goto free_msg;
5562
e247bd90
JB		 5563 if (msg) {
5564 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5565
e247bd90
JB		 5566 genlmsg_end(msg, hdr);
5567 return genlmsg_reply(msg, info);
5568 }
5569
5570 return 0;
026331c4
JM		 5571
5572 nla_put_failure:
5573 err = -ENOBUFS;
5574 free_msg:
5575 nlmsg_free(msg);
026331c4
JM		 5576 return err;
5577}
5578
f7ca38df
JB		 5579static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5580{
5581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5582 struct net_device *dev = info->user_ptr[1];
5583 u64 cookie;
5584
5585 if (!info->attrs[NL80211_ATTR_COOKIE])
5586 return -EINVAL;
5587
5588 if (!rdev->ops->mgmt_tx_cancel_wait)
5589 return -EOPNOTSUPP;
5590
5591 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5592 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5593 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5594 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5595 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5597 return -EOPNOTSUPP;
5598
5599 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5600
5601 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5602}
5603
ffb9eb3d
KV		 5604static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5605{
4c476991 5606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5607 struct wireless_dev *wdev;
4c476991 5608 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5609 u8 ps_state;
5610 bool state;
5611 int err;
5612
4c476991
JB		 5613 if (!info->attrs[NL80211_ATTR_PS_STATE])
5614 return -EINVAL;
ffb9eb3d
KV		 5615
5616 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5617
4c476991
JB		 5618 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5619 return -EINVAL;
ffb9eb3d
KV		 5620
5621 wdev = dev->ieee80211_ptr;
5622
4c476991
JB		 5623 if (!rdev->ops->set_power_mgmt)
5624 return -EOPNOTSUPP;
ffb9eb3d
KV		 5625
5626 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5627
5628 if (state == wdev->ps)
4c476991 5629 return 0;
ffb9eb3d 5630
4c476991
JB		 5631 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5632 wdev->ps_timeout);
5633 if (!err)
5634 wdev->ps = state;
ffb9eb3d
KV		 5635 return err;
5636}
5637
5638static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5639{
4c476991 5640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5641 enum nl80211_ps_state ps_state;
5642 struct wireless_dev *wdev;
4c476991 5643 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5644 struct sk_buff *msg;
5645 void *hdr;
5646 int err;
5647
ffb9eb3d
KV		 5648 wdev = dev->ieee80211_ptr;
5649
4c476991
JB		 5650 if (!rdev->ops->set_power_mgmt)
5651 return -EOPNOTSUPP;
ffb9eb3d
KV		 5652
5653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5654 if (!msg)
5655 return -ENOMEM;
ffb9eb3d
KV		 5656
5657 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5658 NL80211_CMD_GET_POWER_SAVE);
5659 if (!hdr) {
4c476991 5660 err = -ENOBUFS;
ffb9eb3d
KV		 5661 goto free_msg;
5662 }
5663
5664 if (wdev->ps)
5665 ps_state = NL80211_PS_ENABLED;
5666 else
5667 ps_state = NL80211_PS_DISABLED;
5668
5669 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5670
5671 genlmsg_end(msg, hdr);
4c476991 5672 return genlmsg_reply(msg, info);
ffb9eb3d 5673
4c476991 5674 nla_put_failure:
ffb9eb3d 5675 err = -ENOBUFS;
4c476991 5676 free_msg:
ffb9eb3d 5677 nlmsg_free(msg);
ffb9eb3d
KV		 5678 return err;
5679}
5680
d6dc1a38
JO		 5681static struct nla_policy
5682nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5683 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5684 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5685 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5686};
5687
5688static int nl80211_set_cqm_rssi(struct genl_info *info,
5689 s32 threshold, u32 hysteresis)
5690{
4c476991 5691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5692 struct wireless_dev *wdev;
4c476991 5693 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5694
5695 if (threshold > 0)
5696 return -EINVAL;
5697
d6dc1a38
JO		 5698 wdev = dev->ieee80211_ptr;
5699
4c476991
JB		 5700 if (!rdev->ops->set_cqm_rssi_config)
5701 return -EOPNOTSUPP;
d6dc1a38 5702
074ac8df 5703 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5704 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5705 return -EOPNOTSUPP;
d6dc1a38 5706
4c476991
JB		 5707 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5708 threshold, hysteresis);
d6dc1a38
JO		 5709}
5710
5711static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5712{
5713 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5714 struct nlattr *cqm;
5715 int err;
5716
5717 cqm = info->attrs[NL80211_ATTR_CQM];
5718 if (!cqm) {
5719 err = -EINVAL;
5720 goto out;
5721 }
5722
5723 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5724 nl80211_attr_cqm_policy);
5725 if (err)
5726 goto out;
5727
5728 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5729 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5730 s32 threshold;
5731 u32 hysteresis;
5732 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5733 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5734 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5735 } else
5736 err = -EINVAL;
5737
5738out:
5739 return err;
5740}
5741
29cbe68c
JB		 5742static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5743{
5744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5745 struct net_device *dev = info->user_ptr[1];
5746 struct mesh_config cfg;
c80d545d 5747 struct mesh_setup setup;
29cbe68c
JB		 5748 int err;
5749
5750 /* start with default */
5751 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5752 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5753
24bdd9f4 5754 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5755 /* and parse parameters if given */
24bdd9f4 5756 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5757 if (err)
5758 return err;
5759 }
5760
5761 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5762 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5763 return -EINVAL;
5764
c80d545d
JC		 5765 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5766 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5767
4bb62344
CYY		 5768 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5769 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5770 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5771 return -EINVAL;
5772
c80d545d
JC		 5773 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5774 /* parse additional setup parameters if given */
5775 err = nl80211_parse_mesh_setup(info, &setup);
5776 if (err)
5777 return err;
5778 }
5779
5780 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5781}
5782
5783static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5784{
5785 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5786 struct net_device *dev = info->user_ptr[1];
5787
5788 return cfg80211_leave_mesh(rdev, dev);
5789}
5790
ff1b6e69
JB		 5791static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5792{
5793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5794 struct sk_buff *msg;
5795 void *hdr;
5796
5797 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5798 return -EOPNOTSUPP;
5799
5800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5801 if (!msg)
5802 return -ENOMEM;
5803
5804 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5805 NL80211_CMD_GET_WOWLAN);
5806 if (!hdr)
5807 goto nla_put_failure;
5808
5809 if (rdev->wowlan) {
5810 struct nlattr *nl_wowlan;
5811
5812 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5813 if (!nl_wowlan)
5814 goto nla_put_failure;
5815
5816 if (rdev->wowlan->any)
5817 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5818 if (rdev->wowlan->disconnect)
5819 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5820 if (rdev->wowlan->magic_pkt)
5821 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5822 if (rdev->wowlan->gtk_rekey_failure)
5823 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5824 if (rdev->wowlan->eap_identity_req)
5825 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5826 if (rdev->wowlan->four_way_handshake)
5827 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5828 if (rdev->wowlan->rfkill_release)
5829 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5830 if (rdev->wowlan->n_patterns) {
5831 struct nlattr *nl_pats, *nl_pat;
5832 int i, pat_len;
5833
5834 nl_pats = nla_nest_start(msg,
5835 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5836 if (!nl_pats)
5837 goto nla_put_failure;
5838
5839 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5840 nl_pat = nla_nest_start(msg, i + 1);
5841 if (!nl_pat)
5842 goto nla_put_failure;
5843 pat_len = rdev->wowlan->patterns[i].pattern_len;
5844 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5845 DIV_ROUND_UP(pat_len, 8),
5846 rdev->wowlan->patterns[i].mask);
5847 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5848 pat_len,
5849 rdev->wowlan->patterns[i].pattern);
5850 nla_nest_end(msg, nl_pat);
5851 }
5852 nla_nest_end(msg, nl_pats);
5853 }
5854
5855 nla_nest_end(msg, nl_wowlan);
5856 }
5857
5858 genlmsg_end(msg, hdr);
5859 return genlmsg_reply(msg, info);
5860
5861nla_put_failure:
5862 nlmsg_free(msg);
5863 return -ENOBUFS;
5864}
5865
5866static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5867{
5868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5869 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5870 struct cfg80211_wowlan no_triggers = {};
5871 struct cfg80211_wowlan new_triggers = {};
5872 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5873 int err, i;
5874
5875 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5876 return -EOPNOTSUPP;
5877
5878 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5879 goto no_triggers;
5880
5881 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5882 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5883 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5884 nl80211_wowlan_policy);
5885 if (err)
5886 return err;
5887
5888 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5889 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5890 return -EINVAL;
5891 new_triggers.any = true;
5892 }
5893
5894 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5895 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5896 return -EINVAL;
5897 new_triggers.disconnect = true;
5898 }
5899
5900 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5901 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5902 return -EINVAL;
5903 new_triggers.magic_pkt = true;
5904 }
5905
77dbbb13
JB		 5906 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5907 return -EINVAL;
5908
5909 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5910 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5911 return -EINVAL;
5912 new_triggers.gtk_rekey_failure = true;
5913 }
5914
5915 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5916 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5917 return -EINVAL;
5918 new_triggers.eap_identity_req = true;
5919 }
5920
5921 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5922 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5923 return -EINVAL;
5924 new_triggers.four_way_handshake = true;
5925 }
5926
5927 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5928 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5929 return -EINVAL;
5930 new_triggers.rfkill_release = true;
5931 }
5932
ff1b6e69
JB		 5933 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5934 struct nlattr *pat;
5935 int n_patterns = 0;
5936 int rem, pat_len, mask_len;
5937 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5938
5939 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5940 rem)
5941 n_patterns++;
5942 if (n_patterns > wowlan->n_patterns)
5943 return -EINVAL;
5944
5945 new_triggers.patterns = kcalloc(n_patterns,
5946 sizeof(new_triggers.patterns[0]),
5947 GFP_KERNEL);
5948 if (!new_triggers.patterns)
5949 return -ENOMEM;
5950
5951 new_triggers.n_patterns = n_patterns;
5952 i = 0;
5953
5954 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5955 rem) {
5956 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5957 nla_data(pat), nla_len(pat), NULL);
5958 err = -EINVAL;
5959 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5960 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5961 goto error;
5962 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5963 mask_len = DIV_ROUND_UP(pat_len, 8);
5964 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5965 mask_len)
5966 goto error;
5967 if (pat_len > wowlan->pattern_max_len ||
5968 pat_len < wowlan->pattern_min_len)
5969 goto error;
5970
5971 new_triggers.patterns[i].mask =
5972 kmalloc(mask_len + pat_len, GFP_KERNEL);
5973 if (!new_triggers.patterns[i].mask) {
5974 err = -ENOMEM;
5975 goto error;
5976 }
5977 new_triggers.patterns[i].pattern =
5978 new_triggers.patterns[i].mask + mask_len;
5979 memcpy(new_triggers.patterns[i].mask,
5980 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5981 mask_len);
5982 new_triggers.patterns[i].pattern_len = pat_len;
5983 memcpy(new_triggers.patterns[i].pattern,
5984 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5985 pat_len);
5986 i++;
5987 }
5988 }
5989
5990 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5991 struct cfg80211_wowlan *ntrig;
5992 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5993 GFP_KERNEL);
5994 if (!ntrig) {
5995 err = -ENOMEM;
5996 goto error;
5997 }
5998 cfg80211_rdev_free_wowlan(rdev);
5999 rdev->wowlan = ntrig;
6000 } else {
6001 no_triggers:
6002 cfg80211_rdev_free_wowlan(rdev);
6003 rdev->wowlan = NULL;
6004 }
6005
6006 return 0;
6007 error:
6008 for (i = 0; i < new_triggers.n_patterns; i++)
6009 kfree(new_triggers.patterns[i].mask);
6010 kfree(new_triggers.patterns);
6011 return err;
6012}
6013
e5497d76
JB		 6014static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6015{
6016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6017 struct net_device *dev = info->user_ptr[1];
6018 struct wireless_dev *wdev = dev->ieee80211_ptr;
6019 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6020 struct cfg80211_gtk_rekey_data rekey_data;
6021 int err;
6022
6023 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6024 return -EINVAL;
6025
6026 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6027 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6028 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6029 nl80211_rekey_policy);
6030 if (err)
6031 return err;
6032
6033 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6034 return -ERANGE;
6035 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6036 return -ERANGE;
6037 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6038 return -ERANGE;
6039
6040 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6041 NL80211_KEK_LEN);
6042 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6043 NL80211_KCK_LEN);
6044 memcpy(rekey_data.replay_ctr,
6045 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6046 NL80211_REPLAY_CTR_LEN);
6047
6048 wdev_lock(wdev);
6049 if (!wdev->current_bss) {
6050 err = -ENOTCONN;
6051 goto out;
6052 }
6053
6054 if (!rdev->ops->set_rekey_data) {
6055 err = -EOPNOTSUPP;
6056 goto out;
6057 }
6058
6059 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6060 out:
6061 wdev_unlock(wdev);
6062 return err;
6063}
6064
28946da7
JB		 6065static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6066 struct genl_info *info)
6067{
6068 struct net_device *dev = info->user_ptr[1];
6069 struct wireless_dev *wdev = dev->ieee80211_ptr;
6070
6071 if (wdev->iftype != NL80211_IFTYPE_AP &&
6072 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6073 return -EINVAL;
6074
6075 if (wdev->ap_unexpected_nlpid)
6076 return -EBUSY;
6077
6078 wdev->ap_unexpected_nlpid = info->snd_pid;
6079 return 0;
6080}
6081
7f6cf311
JB		 6082static int nl80211_probe_client(struct sk_buff *skb,
6083 struct genl_info *info)
6084{
6085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6086 struct net_device *dev = info->user_ptr[1];
6087 struct wireless_dev *wdev = dev->ieee80211_ptr;
6088 struct sk_buff *msg;
6089 void *hdr;
6090 const u8 *addr;
6091 u64 cookie;
6092 int err;
6093
6094 if (wdev->iftype != NL80211_IFTYPE_AP &&
6095 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6096 return -EOPNOTSUPP;
6097
6098 if (!info->attrs[NL80211_ATTR_MAC])
6099 return -EINVAL;
6100
6101 if (!rdev->ops->probe_client)
6102 return -EOPNOTSUPP;
6103
6104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6105 if (!msg)
6106 return -ENOMEM;
6107
6108 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6109 NL80211_CMD_PROBE_CLIENT);
6110
6111 if (IS_ERR(hdr)) {
6112 err = PTR_ERR(hdr);
6113 goto free_msg;
6114 }
6115
6116 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6117
6118 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6119 if (err)
6120 goto free_msg;
6121
6122 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6123
6124 genlmsg_end(msg, hdr);
6125
6126 return genlmsg_reply(msg, info);
6127
6128 nla_put_failure:
6129 err = -ENOBUFS;
6130 free_msg:
6131 nlmsg_free(msg);
6132 return err;
6133}
6134
5e760230
JB		 6135static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6136{
6137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6138
6139 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6140 return -EOPNOTSUPP;
6141
6142 if (rdev->ap_beacons_nlpid)
6143 return -EBUSY;
6144
6145 rdev->ap_beacons_nlpid = info->snd_pid;
6146
6147 return 0;
6148}
6149
4c476991
JB		 6150#define NL80211_FLAG_NEED_WIPHY 0x01
6151#define NL80211_FLAG_NEED_NETDEV 0x02
6152#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6153#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6154#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6155 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6156
6157static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6158 struct genl_info *info)
6159{
6160 struct cfg80211_registered_device *rdev;
6161 struct net_device *dev;
6162 int err;
6163 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6164
6165 if (rtnl)
6166 rtnl_lock();
6167
6168 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6169 rdev = cfg80211_get_dev_from_info(info);
6170 if (IS_ERR(rdev)) {
6171 if (rtnl)
6172 rtnl_unlock();
6173 return PTR_ERR(rdev);
6174 }
6175 info->user_ptr[0] = rdev;
6176 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6177 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6178 &rdev, &dev);
4c476991
JB		 6179 if (err) {
6180 if (rtnl)
6181 rtnl_unlock();
6182 return err;
6183 }
41265714
JB		 6184 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6185 !netif_running(dev)) {
d537f5fd
JB		 6186 cfg80211_unlock_rdev(rdev);
6187 dev_put(dev);
41265714
JB		 6188 if (rtnl)
6189 rtnl_unlock();
6190 return -ENETDOWN;
6191 }
4c476991
JB		 6192 info->user_ptr[0] = rdev;
6193 info->user_ptr[1] = dev;
6194 }
6195
6196 return 0;
6197}
6198
6199static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6200 struct genl_info *info)
6201{
6202 if (info->user_ptr[0])
6203 cfg80211_unlock_rdev(info->user_ptr[0]);
6204 if (info->user_ptr[1])
6205 dev_put(info->user_ptr[1]);
6206 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6207 rtnl_unlock();
6208}
6209
55682965
JB		 6210static struct genl_ops nl80211_ops[] = {
6211 {
6212 .cmd = NL80211_CMD_GET_WIPHY,
6213 .doit = nl80211_get_wiphy,
6214 .dumpit = nl80211_dump_wiphy,
6215 .policy = nl80211_policy,
6216 /* can be retrieved by unprivileged users */
4c476991 6217 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6218 },
6219 {
6220 .cmd = NL80211_CMD_SET_WIPHY,
6221 .doit = nl80211_set_wiphy,
6222 .policy = nl80211_policy,
6223 .flags = GENL_ADMIN_PERM,
4c476991 6224 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6225 },
6226 {
6227 .cmd = NL80211_CMD_GET_INTERFACE,
6228 .doit = nl80211_get_interface,
6229 .dumpit = nl80211_dump_interface,
6230 .policy = nl80211_policy,
6231 /* can be retrieved by unprivileged users */
4c476991 6232 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6233 },
6234 {
6235 .cmd = NL80211_CMD_SET_INTERFACE,
6236 .doit = nl80211_set_interface,
6237 .policy = nl80211_policy,
6238 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6239 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6240 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6241 },
6242 {
6243 .cmd = NL80211_CMD_NEW_INTERFACE,
6244 .doit = nl80211_new_interface,
6245 .policy = nl80211_policy,
6246 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6247 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6248 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6249 },
6250 {
6251 .cmd = NL80211_CMD_DEL_INTERFACE,
6252 .doit = nl80211_del_interface,
6253 .policy = nl80211_policy,
41ade00f 6254 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6255 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6256 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6257 },
6258 {
6259 .cmd = NL80211_CMD_GET_KEY,
6260 .doit = nl80211_get_key,
6261 .policy = nl80211_policy,
6262 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6263 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6264 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6265 },
6266 {
6267 .cmd = NL80211_CMD_SET_KEY,
6268 .doit = nl80211_set_key,
6269 .policy = nl80211_policy,
6270 .flags = GENL_ADMIN_PERM,
41265714 6271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6272 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6273 },
6274 {
6275 .cmd = NL80211_CMD_NEW_KEY,
6276 .doit = nl80211_new_key,
6277 .policy = nl80211_policy,
6278 .flags = GENL_ADMIN_PERM,
41265714 6279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6280 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6281 },
6282 {
6283 .cmd = NL80211_CMD_DEL_KEY,
6284 .doit = nl80211_del_key,
6285 .policy = nl80211_policy,
55682965 6286 .flags = GENL_ADMIN_PERM,
41265714 6287 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6288 NL80211_FLAG_NEED_RTNL,
55682965 6289 },
ed1b6cc7
JB		 6290 {
6291 .cmd = NL80211_CMD_SET_BEACON,
6292 .policy = nl80211_policy,
6293 .flags = GENL_ADMIN_PERM,
6294 .doit = nl80211_addset_beacon,
4c476991
JB		 6295 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6296 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6297 },
6298 {
6299 .cmd = NL80211_CMD_NEW_BEACON,
6300 .policy = nl80211_policy,
6301 .flags = GENL_ADMIN_PERM,
6302 .doit = nl80211_addset_beacon,
4c476991
JB		 6303 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6304 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6305 },
6306 {
6307 .cmd = NL80211_CMD_DEL_BEACON,
6308 .policy = nl80211_policy,
6309 .flags = GENL_ADMIN_PERM,
6310 .doit = nl80211_del_beacon,
4c476991
JB		 6311 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6312 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6313 },
5727ef1b
JB		 6314 {
6315 .cmd = NL80211_CMD_GET_STATION,
6316 .doit = nl80211_get_station,
2ec600d6 6317 .dumpit = nl80211_dump_station,
5727ef1b 6318 .policy = nl80211_policy,
4c476991
JB		 6319 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6320 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6321 },
6322 {
6323 .cmd = NL80211_CMD_SET_STATION,
6324 .doit = nl80211_set_station,
6325 .policy = nl80211_policy,
6326 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6328 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6329 },
6330 {
6331 .cmd = NL80211_CMD_NEW_STATION,
6332 .doit = nl80211_new_station,
6333 .policy = nl80211_policy,
6334 .flags = GENL_ADMIN_PERM,
41265714 6335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6336 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6337 },
6338 {
6339 .cmd = NL80211_CMD_DEL_STATION,
6340 .doit = nl80211_del_station,
6341 .policy = nl80211_policy,
2ec600d6 6342 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6343 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6344 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6345 },
6346 {
6347 .cmd = NL80211_CMD_GET_MPATH,
6348 .doit = nl80211_get_mpath,
6349 .dumpit = nl80211_dump_mpath,
6350 .policy = nl80211_policy,
6351 .flags = GENL_ADMIN_PERM,
41265714 6352 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6353 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6354 },
6355 {
6356 .cmd = NL80211_CMD_SET_MPATH,
6357 .doit = nl80211_set_mpath,
6358 .policy = nl80211_policy,
6359 .flags = GENL_ADMIN_PERM,
41265714 6360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6361 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6362 },
6363 {
6364 .cmd = NL80211_CMD_NEW_MPATH,
6365 .doit = nl80211_new_mpath,
6366 .policy = nl80211_policy,
6367 .flags = GENL_ADMIN_PERM,
41265714 6368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6369 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6370 },
6371 {
6372 .cmd = NL80211_CMD_DEL_MPATH,
6373 .doit = nl80211_del_mpath,
6374 .policy = nl80211_policy,
9f1ba906 6375 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6376 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6377 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6378 },
6379 {
6380 .cmd = NL80211_CMD_SET_BSS,
6381 .doit = nl80211_set_bss,
6382 .policy = nl80211_policy,
b2e1b302 6383 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6384 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6385 NL80211_FLAG_NEED_RTNL,
b2e1b302 6386 },
f130347c
LR		 6387 {
6388 .cmd = NL80211_CMD_GET_REG,
6389 .doit = nl80211_get_reg,
6390 .policy = nl80211_policy,
6391 /* can be retrieved by unprivileged users */
6392 },
b2e1b302
LR		 6393 {
6394 .cmd = NL80211_CMD_SET_REG,
6395 .doit = nl80211_set_reg,
6396 .policy = nl80211_policy,
6397 .flags = GENL_ADMIN_PERM,
6398 },
6399 {
6400 .cmd = NL80211_CMD_REQ_SET_REG,
6401 .doit = nl80211_req_set_reg,
6402 .policy = nl80211_policy,
93da9cc1 6403 .flags = GENL_ADMIN_PERM,
6404 },
6405 {
24bdd9f4
JC		 6406 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6407 .doit = nl80211_get_mesh_config,
93da9cc1 6408 .policy = nl80211_policy,
6409 /* can be retrieved by unprivileged users */
4c476991
JB		 6410 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6411 NL80211_FLAG_NEED_RTNL,
93da9cc1 6412 },
6413 {
24bdd9f4
JC		 6414 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6415 .doit = nl80211_update_mesh_config,
93da9cc1 6416 .policy = nl80211_policy,
9aed3cc1 6417 .flags = GENL_ADMIN_PERM,
29cbe68c 6418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6419 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6420 },
2a519311
JB		 6421 {
6422 .cmd = NL80211_CMD_TRIGGER_SCAN,
6423 .doit = nl80211_trigger_scan,
6424 .policy = nl80211_policy,
6425 .flags = GENL_ADMIN_PERM,
41265714 6426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6427 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6428 },
6429 {
6430 .cmd = NL80211_CMD_GET_SCAN,
6431 .policy = nl80211_policy,
6432 .dumpit = nl80211_dump_scan,
6433 },
807f8a8c
LC		 6434 {
6435 .cmd = NL80211_CMD_START_SCHED_SCAN,
6436 .doit = nl80211_start_sched_scan,
6437 .policy = nl80211_policy,
6438 .flags = GENL_ADMIN_PERM,
6439 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6440 NL80211_FLAG_NEED_RTNL,
6441 },
6442 {
6443 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6444 .doit = nl80211_stop_sched_scan,
6445 .policy = nl80211_policy,
6446 .flags = GENL_ADMIN_PERM,
6447 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6448 NL80211_FLAG_NEED_RTNL,
6449 },
636a5d36
JM		 6450 {
6451 .cmd = NL80211_CMD_AUTHENTICATE,
6452 .doit = nl80211_authenticate,
6453 .policy = nl80211_policy,
6454 .flags = GENL_ADMIN_PERM,
41265714 6455 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6456 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6457 },
6458 {
6459 .cmd = NL80211_CMD_ASSOCIATE,
6460 .doit = nl80211_associate,
6461 .policy = nl80211_policy,
6462 .flags = GENL_ADMIN_PERM,
41265714 6463 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6464 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6465 },
6466 {
6467 .cmd = NL80211_CMD_DEAUTHENTICATE,
6468 .doit = nl80211_deauthenticate,
6469 .policy = nl80211_policy,
6470 .flags = GENL_ADMIN_PERM,
41265714 6471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6472 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6473 },
6474 {
6475 .cmd = NL80211_CMD_DISASSOCIATE,
6476 .doit = nl80211_disassociate,
6477 .policy = nl80211_policy,
6478 .flags = GENL_ADMIN_PERM,
41265714 6479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6480 NL80211_FLAG_NEED_RTNL,
636a5d36 6481 },
04a773ad
JB		 6482 {
6483 .cmd = NL80211_CMD_JOIN_IBSS,
6484 .doit = nl80211_join_ibss,
6485 .policy = nl80211_policy,
6486 .flags = GENL_ADMIN_PERM,
41265714 6487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6488 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6489 },
6490 {
6491 .cmd = NL80211_CMD_LEAVE_IBSS,
6492 .doit = nl80211_leave_ibss,
6493 .policy = nl80211_policy,
6494 .flags = GENL_ADMIN_PERM,
41265714 6495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6496 NL80211_FLAG_NEED_RTNL,
04a773ad 6497 },
aff89a9b
JB		 6498#ifdef CONFIG_NL80211_TESTMODE
6499 {
6500 .cmd = NL80211_CMD_TESTMODE,
6501 .doit = nl80211_testmode_do,
71063f0e 6502 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6503 .policy = nl80211_policy,
6504 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6505 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6506 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6507 },
6508#endif
b23aa676
SO		 6509 {
6510 .cmd = NL80211_CMD_CONNECT,
6511 .doit = nl80211_connect,
6512 .policy = nl80211_policy,
6513 .flags = GENL_ADMIN_PERM,
41265714 6514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6515 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6516 },
6517 {
6518 .cmd = NL80211_CMD_DISCONNECT,
6519 .doit = nl80211_disconnect,
6520 .policy = nl80211_policy,
6521 .flags = GENL_ADMIN_PERM,
41265714 6522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6523 NL80211_FLAG_NEED_RTNL,
b23aa676 6524 },
463d0183
JB		 6525 {
6526 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6527 .doit = nl80211_wiphy_netns,
6528 .policy = nl80211_policy,
6529 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6530 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6531 NL80211_FLAG_NEED_RTNL,
463d0183 6532 },
61fa713c
HS		 6533 {
6534 .cmd = NL80211_CMD_GET_SURVEY,
6535 .policy = nl80211_policy,
6536 .dumpit = nl80211_dump_survey,
6537 },
67fbb16b
SO		 6538 {
6539 .cmd = NL80211_CMD_SET_PMKSA,
6540 .doit = nl80211_setdel_pmksa,
6541 .policy = nl80211_policy,
6542 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6543 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6544 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6545 },
6546 {
6547 .cmd = NL80211_CMD_DEL_PMKSA,
6548 .doit = nl80211_setdel_pmksa,
6549 .policy = nl80211_policy,
6550 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6551 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6552 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6553 },
6554 {
6555 .cmd = NL80211_CMD_FLUSH_PMKSA,
6556 .doit = nl80211_flush_pmksa,
6557 .policy = nl80211_policy,
6558 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6559 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6560 NL80211_FLAG_NEED_RTNL,
67fbb16b 6561 },
9588bbd5
JM		 6562 {
6563 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6564 .doit = nl80211_remain_on_channel,
6565 .policy = nl80211_policy,
6566 .flags = GENL_ADMIN_PERM,
41265714 6567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6568 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6569 },
6570 {
6571 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6572 .doit = nl80211_cancel_remain_on_channel,
6573 .policy = nl80211_policy,
6574 .flags = GENL_ADMIN_PERM,
41265714 6575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6576 NL80211_FLAG_NEED_RTNL,
9588bbd5 6577 },
13ae75b1
JM		 6578 {
6579 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6580 .doit = nl80211_set_tx_bitrate_mask,
6581 .policy = nl80211_policy,
6582 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6583 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6584 NL80211_FLAG_NEED_RTNL,
13ae75b1 6585 },
026331c4 6586 {
2e161f78
JB		 6587 .cmd = NL80211_CMD_REGISTER_FRAME,
6588 .doit = nl80211_register_mgmt,
026331c4
JM		 6589 .policy = nl80211_policy,
6590 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6591 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6592 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6593 },
6594 {
2e161f78
JB		 6595 .cmd = NL80211_CMD_FRAME,
6596 .doit = nl80211_tx_mgmt,
026331c4 6597 .policy = nl80211_policy,
f7ca38df
JB		 6598 .flags = GENL_ADMIN_PERM,
6599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6600 NL80211_FLAG_NEED_RTNL,
6601 },
6602 {
6603 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6604 .doit = nl80211_tx_mgmt_cancel_wait,
6605 .policy = nl80211_policy,
026331c4 6606 .flags = GENL_ADMIN_PERM,
41265714 6607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6608 NL80211_FLAG_NEED_RTNL,
026331c4 6609 },
ffb9eb3d
KV		 6610 {
6611 .cmd = NL80211_CMD_SET_POWER_SAVE,
6612 .doit = nl80211_set_power_save,
6613 .policy = nl80211_policy,
6614 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6615 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6616 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6617 },
6618 {
6619 .cmd = NL80211_CMD_GET_POWER_SAVE,
6620 .doit = nl80211_get_power_save,
6621 .policy = nl80211_policy,
6622 /* can be retrieved by unprivileged users */
4c476991
JB		 6623 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6624 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6625 },
d6dc1a38
JO		 6626 {
6627 .cmd = NL80211_CMD_SET_CQM,
6628 .doit = nl80211_set_cqm,
6629 .policy = nl80211_policy,
6630 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6631 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6632 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6633 },
f444de05
JB		 6634 {
6635 .cmd = NL80211_CMD_SET_CHANNEL,
6636 .doit = nl80211_set_channel,
6637 .policy = nl80211_policy,
6638 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6639 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6640 NL80211_FLAG_NEED_RTNL,
f444de05 6641 },
e8347eba
BJ		 6642 {
6643 .cmd = NL80211_CMD_SET_WDS_PEER,
6644 .doit = nl80211_set_wds_peer,
6645 .policy = nl80211_policy,
6646 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6647 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6648 NL80211_FLAG_NEED_RTNL,
e8347eba 6649 },
29cbe68c
JB		 6650 {
6651 .cmd = NL80211_CMD_JOIN_MESH,
6652 .doit = nl80211_join_mesh,
6653 .policy = nl80211_policy,
6654 .flags = GENL_ADMIN_PERM,
6655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6656 NL80211_FLAG_NEED_RTNL,
6657 },
6658 {
6659 .cmd = NL80211_CMD_LEAVE_MESH,
6660 .doit = nl80211_leave_mesh,
6661 .policy = nl80211_policy,
6662 .flags = GENL_ADMIN_PERM,
6663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6664 NL80211_FLAG_NEED_RTNL,
6665 },
ff1b6e69
JB		 6666 {
6667 .cmd = NL80211_CMD_GET_WOWLAN,
6668 .doit = nl80211_get_wowlan,
6669 .policy = nl80211_policy,
6670 /* can be retrieved by unprivileged users */
6671 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6672 NL80211_FLAG_NEED_RTNL,
6673 },
6674 {
6675 .cmd = NL80211_CMD_SET_WOWLAN,
6676 .doit = nl80211_set_wowlan,
6677 .policy = nl80211_policy,
6678 .flags = GENL_ADMIN_PERM,
6679 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6680 NL80211_FLAG_NEED_RTNL,
6681 },
e5497d76
JB		 6682 {
6683 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6684 .doit = nl80211_set_rekey_data,
6685 .policy = nl80211_policy,
6686 .flags = GENL_ADMIN_PERM,
6687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6688 NL80211_FLAG_NEED_RTNL,
6689 },
109086ce
AN		 6690 {
6691 .cmd = NL80211_CMD_TDLS_MGMT,
6692 .doit = nl80211_tdls_mgmt,
6693 .policy = nl80211_policy,
6694 .flags = GENL_ADMIN_PERM,
6695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6696 NL80211_FLAG_NEED_RTNL,
6697 },
6698 {
6699 .cmd = NL80211_CMD_TDLS_OPER,
6700 .doit = nl80211_tdls_oper,
6701 .policy = nl80211_policy,
6702 .flags = GENL_ADMIN_PERM,
6703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6704 NL80211_FLAG_NEED_RTNL,
6705 },
28946da7
JB		 6706 {
6707 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6708 .doit = nl80211_register_unexpected_frame,
6709 .policy = nl80211_policy,
6710 .flags = GENL_ADMIN_PERM,
6711 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6712 NL80211_FLAG_NEED_RTNL,
6713 },
7f6cf311
JB		 6714 {
6715 .cmd = NL80211_CMD_PROBE_CLIENT,
6716 .doit = nl80211_probe_client,
6717 .policy = nl80211_policy,
6718 .flags = GENL_ADMIN_PERM,
6719 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6720 NL80211_FLAG_NEED_RTNL,
6721 },
5e760230
JB		 6722 {
6723 .cmd = NL80211_CMD_REGISTER_BEACONS,
6724 .doit = nl80211_register_beacons,
6725 .policy = nl80211_policy,
6726 .flags = GENL_ADMIN_PERM,
6727 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6728 NL80211_FLAG_NEED_RTNL,
6729 },
1d9d9213
SW		 6730 {
6731 .cmd = NL80211_CMD_SET_NOACK_MAP,
6732 .doit = nl80211_set_noack_map,
6733 .policy = nl80211_policy,
6734 .flags = GENL_ADMIN_PERM,
6735 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6736 NL80211_FLAG_NEED_RTNL,
6737 },
6738
55682965 6739};
9588bbd5 6740
6039f6d2
JM		 6741static struct genl_multicast_group nl80211_mlme_mcgrp = {
6742 .name = "mlme",
6743};
55682965
JB		 6744
6745/* multicast groups */
6746static struct genl_multicast_group nl80211_config_mcgrp = {
6747 .name = "config",
6748};
2a519311
JB		 6749static struct genl_multicast_group nl80211_scan_mcgrp = {
6750 .name = "scan",
6751};
73d54c9e
LR		 6752static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6753 .name = "regulatory",
6754};
55682965
JB		 6755
6756/* notification functions */
6757
6758void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6759{
6760 struct sk_buff *msg;
6761
fd2120ca 6762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6763 if (!msg)
6764 return;
6765
6766 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6767 nlmsg_free(msg);
6768 return;
6769 }
6770
463d0183
JB		 6771 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6772 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6773}
6774
362a415d
JB		 6775static int nl80211_add_scan_req(struct sk_buff *msg,
6776 struct cfg80211_registered_device *rdev)
6777{
6778 struct cfg80211_scan_request *req = rdev->scan_req;
6779 struct nlattr *nest;
6780 int i;
6781
667503dd
JB		 6782 ASSERT_RDEV_LOCK(rdev);
6783
362a415d
JB		 6784 if (WARN_ON(!req))
6785 return 0;
6786
6787 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6788 if (!nest)
6789 goto nla_put_failure;
6790 for (i = 0; i < req->n_ssids; i++)
6791 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6792 nla_nest_end(msg, nest);
6793
6794 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6795 if (!nest)
6796 goto nla_put_failure;
6797 for (i = 0; i < req->n_channels; i++)
6798 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6799 nla_nest_end(msg, nest);
6800
6801 if (req->ie)
6802 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6803
6804 return 0;
6805 nla_put_failure:
6806 return -ENOBUFS;
6807}
6808
a538e2d5
JB		 6809static int nl80211_send_scan_msg(struct sk_buff *msg,
6810 struct cfg80211_registered_device *rdev,
6811 struct net_device *netdev,
6812 u32 pid, u32 seq, int flags,
6813 u32 cmd)
2a519311
JB		 6814{
6815 void *hdr;
6816
6817 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6818 if (!hdr)
6819 return -1;
6820
b5850a7a 6821 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6822 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6823
362a415d
JB		 6824 /* ignore errors and send incomplete event anyway */
6825 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6826
6827 return genlmsg_end(msg, hdr);
6828
6829 nla_put_failure:
6830 genlmsg_cancel(msg, hdr);
6831 return -EMSGSIZE;
6832}
6833
807f8a8c
LC		 6834static int
6835nl80211_send_sched_scan_msg(struct sk_buff *msg,
6836 struct cfg80211_registered_device *rdev,
6837 struct net_device *netdev,
6838 u32 pid, u32 seq, int flags, u32 cmd)
6839{
6840 void *hdr;
6841
6842 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6843 if (!hdr)
6844 return -1;
6845
6846 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6847 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6848
6849 return genlmsg_end(msg, hdr);
6850
6851 nla_put_failure:
6852 genlmsg_cancel(msg, hdr);
6853 return -EMSGSIZE;
6854}
6855
a538e2d5
JB		 6856void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6857 struct net_device *netdev)
6858{
6859 struct sk_buff *msg;
6860
6861 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6862 if (!msg)
6863 return;
6864
6865 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6866 NL80211_CMD_TRIGGER_SCAN) < 0) {
6867 nlmsg_free(msg);
6868 return;
6869 }
6870
463d0183
JB		 6871 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6872 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6873}
6874
2a519311
JB		 6875void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6876 struct net_device *netdev)
6877{
6878 struct sk_buff *msg;
6879
fd2120ca 6880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6881 if (!msg)
6882 return;
6883
a538e2d5
JB		 6884 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6885 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6886 nlmsg_free(msg);
6887 return;
6888 }
6889
463d0183
JB		 6890 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6891 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6892}
6893
6894void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6895 struct net_device *netdev)
6896{
6897 struct sk_buff *msg;
6898
fd2120ca 6899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6900 if (!msg)
6901 return;
6902
a538e2d5
JB		 6903 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6904 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6905 nlmsg_free(msg);
6906 return;
6907 }
6908
463d0183
JB		 6909 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6910 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6911}
6912
807f8a8c
LC		 6913void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6914 struct net_device *netdev)
6915{
6916 struct sk_buff *msg;
6917
6918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6919 if (!msg)
6920 return;
6921
6922 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6923 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6924 nlmsg_free(msg);
6925 return;
6926 }
6927
6928 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6929 nl80211_scan_mcgrp.id, GFP_KERNEL);
6930}
6931
6932void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6933 struct net_device *netdev, u32 cmd)
6934{
6935 struct sk_buff *msg;
6936
6937 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6938 if (!msg)
6939 return;
6940
6941 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6942 nlmsg_free(msg);
6943 return;
6944 }
6945
6946 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6947 nl80211_scan_mcgrp.id, GFP_KERNEL);
6948}
6949
73d54c9e
LR		 6950/*
6951 * This can happen on global regulatory changes or device specific settings
6952 * based on custom world regulatory domains.
6953 */
6954void nl80211_send_reg_change_event(struct regulatory_request *request)
6955{
6956 struct sk_buff *msg;
6957 void *hdr;
6958
fd2120ca 6959 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6960 if (!msg)
6961 return;
6962
6963 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6964 if (!hdr) {
6965 nlmsg_free(msg);
6966 return;
6967 }
6968
6969 /* Userspace can always count this one always being set */
6970 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6971
6972 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6973 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6974 NL80211_REGDOM_TYPE_WORLD);
6975 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6976 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6977 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6978 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6979 request->intersect)
6980 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6981 NL80211_REGDOM_TYPE_INTERSECTION);
6982 else {
6983 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6984 NL80211_REGDOM_TYPE_COUNTRY);
6985 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6986 }
6987
6988 if (wiphy_idx_valid(request->wiphy_idx))
6989 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6990
3b7b72ee 6991 genlmsg_end(msg, hdr);
73d54c9e 6992
bc43b28c 6993 rcu_read_lock();
463d0183 6994 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6995 GFP_ATOMIC);
6996 rcu_read_unlock();
73d54c9e
LR		 6997
6998 return;
6999
7000nla_put_failure:
7001 genlmsg_cancel(msg, hdr);
7002 nlmsg_free(msg);
7003}
7004
6039f6d2
JM		 7005static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7006 struct net_device *netdev,
7007 const u8 *buf, size_t len,
e6d6e342 7008 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7009{
7010 struct sk_buff *msg;
7011 void *hdr;
7012
e6d6e342 7013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7014 if (!msg)
7015 return;
7016
7017 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7018 if (!hdr) {
7019 nlmsg_free(msg);
7020 return;
7021 }
7022
7023 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7024 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7025 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7026
3b7b72ee 7027 genlmsg_end(msg, hdr);
6039f6d2 7028
463d0183
JB		 7029 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7030 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7031 return;
7032
7033 nla_put_failure:
7034 genlmsg_cancel(msg, hdr);
7035 nlmsg_free(msg);
7036}
7037
7038void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7039 struct net_device *netdev, const u8 *buf,
7040 size_t len, gfp_t gfp)
6039f6d2
JM		 7041{
7042 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7043 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7044}
7045
7046void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7047 struct net_device *netdev, const u8 *buf,
e6d6e342 7048 size_t len, gfp_t gfp)
6039f6d2 7049{
e6d6e342
JB		 7050 nl80211_send_mlme_event(rdev, netdev, buf, len,
7051 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7052}
7053
53b46b84 7054void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7055 struct net_device *netdev, const u8 *buf,
7056 size_t len, gfp_t gfp)
6039f6d2
JM		 7057{
7058 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7059 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7060}
7061
53b46b84
JM		 7062void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7063 struct net_device *netdev, const u8 *buf,
e6d6e342 7064 size_t len, gfp_t gfp)
6039f6d2
JM		 7065{
7066 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7067 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7068}
7069
cf4e594e
JM		 7070void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7071 struct net_device *netdev, const u8 *buf,
7072 size_t len, gfp_t gfp)
7073{
7074 nl80211_send_mlme_event(rdev, netdev, buf, len,
7075 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7076}
7077
7078void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7079 struct net_device *netdev, const u8 *buf,
7080 size_t len, gfp_t gfp)
7081{
7082 nl80211_send_mlme_event(rdev, netdev, buf, len,
7083 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7084}
7085
1b06bb40
LR		 7086static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7087 struct net_device *netdev, int cmd,
e6d6e342 7088 const u8 *addr, gfp_t gfp)
1965c853
JM		 7089{
7090 struct sk_buff *msg;
7091 void *hdr;
7092
e6d6e342 7093 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7094 if (!msg)
7095 return;
7096
7097 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7098 if (!hdr) {
7099 nlmsg_free(msg);
7100 return;
7101 }
7102
7103 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7104 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7105 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7106 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7107
3b7b72ee 7108 genlmsg_end(msg, hdr);
1965c853 7109
463d0183
JB		 7110 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7111 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7112 return;
7113
7114 nla_put_failure:
7115 genlmsg_cancel(msg, hdr);
7116 nlmsg_free(msg);
7117}
7118
7119void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7120 struct net_device *netdev, const u8 *addr,
7121 gfp_t gfp)
1965c853
JM		 7122{
7123 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7124 addr, gfp);
1965c853
JM		 7125}
7126
7127void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7128 struct net_device *netdev, const u8 *addr,
7129 gfp_t gfp)
1965c853 7130{
e6d6e342
JB		 7131 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7132 addr, gfp);
1965c853
JM		 7133}
7134
b23aa676
SO		 7135void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7136 struct net_device *netdev, const u8 *bssid,
7137 const u8 *req_ie, size_t req_ie_len,
7138 const u8 *resp_ie, size_t resp_ie_len,
7139 u16 status, gfp_t gfp)
7140{
7141 struct sk_buff *msg;
7142 void *hdr;
7143
7144 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7145 if (!msg)
7146 return;
7147
7148 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7149 if (!hdr) {
7150 nlmsg_free(msg);
7151 return;
7152 }
7153
7154 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7155 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7156 if (bssid)
7157 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7158 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7159 if (req_ie)
7160 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7161 if (resp_ie)
7162 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7163
3b7b72ee 7164 genlmsg_end(msg, hdr);
b23aa676 7165
463d0183
JB		 7166 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7167 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7168 return;
7169
7170 nla_put_failure:
7171 genlmsg_cancel(msg, hdr);
7172 nlmsg_free(msg);
7173
7174}
7175
7176void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7177 struct net_device *netdev, const u8 *bssid,
7178 const u8 *req_ie, size_t req_ie_len,
7179 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7180{
7181 struct sk_buff *msg;
7182 void *hdr;
7183
7184 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7185 if (!msg)
7186 return;
7187
7188 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7189 if (!hdr) {
7190 nlmsg_free(msg);
7191 return;
7192 }
7193
7194 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7195 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7196 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7197 if (req_ie)
7198 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7199 if (resp_ie)
7200 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7201
3b7b72ee 7202 genlmsg_end(msg, hdr);
b23aa676 7203
463d0183
JB		 7204 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7205 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7206 return;
7207
7208 nla_put_failure:
7209 genlmsg_cancel(msg, hdr);
7210 nlmsg_free(msg);
7211
7212}
7213
7214void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7215 struct net_device *netdev, u16 reason,
667503dd 7216 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7217{
7218 struct sk_buff *msg;
7219 void *hdr;
7220
667503dd 7221 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7222 if (!msg)
7223 return;
7224
7225 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7226 if (!hdr) {
7227 nlmsg_free(msg);
7228 return;
7229 }
7230
7231 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7232 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7233 if (from_ap && reason)
7234 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7235 if (from_ap)
7236 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7237 if (ie)
7238 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7239
3b7b72ee 7240 genlmsg_end(msg, hdr);
b23aa676 7241
463d0183
JB		 7242 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7243 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7244 return;
7245
7246 nla_put_failure:
7247 genlmsg_cancel(msg, hdr);
7248 nlmsg_free(msg);
7249
7250}
7251
04a773ad
JB		 7252void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7253 struct net_device *netdev, const u8 *bssid,
7254 gfp_t gfp)
7255{
7256 struct sk_buff *msg;
7257 void *hdr;
7258
fd2120ca 7259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7260 if (!msg)
7261 return;
7262
7263 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7264 if (!hdr) {
7265 nlmsg_free(msg);
7266 return;
7267 }
7268
7269 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7270 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7271 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7272
3b7b72ee 7273 genlmsg_end(msg, hdr);
04a773ad 7274
463d0183
JB		 7275 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7276 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7277 return;
7278
7279 nla_put_failure:
7280 genlmsg_cancel(msg, hdr);
7281 nlmsg_free(msg);
7282}
7283
c93b5e71
JC		 7284void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7285 struct net_device *netdev,
7286 const u8 *macaddr, const u8* ie, u8 ie_len,
7287 gfp_t gfp)
7288{
7289 struct sk_buff *msg;
7290 void *hdr;
7291
7292 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7293 if (!msg)
7294 return;
7295
7296 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7297 if (!hdr) {
7298 nlmsg_free(msg);
7299 return;
7300 }
7301
7302 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7303 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7304 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7305 if (ie_len && ie)
7306 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7307
3b7b72ee 7308 genlmsg_end(msg, hdr);
c93b5e71
JC		 7309
7310 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7311 nl80211_mlme_mcgrp.id, gfp);
7312 return;
7313
7314 nla_put_failure:
7315 genlmsg_cancel(msg, hdr);
7316 nlmsg_free(msg);
7317}
7318
a3b8b056
JM		 7319void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7320 struct net_device *netdev, const u8 *addr,
7321 enum nl80211_key_type key_type, int key_id,
e6d6e342 7322 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7323{
7324 struct sk_buff *msg;
7325 void *hdr;
7326
e6d6e342 7327 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7328 if (!msg)
7329 return;
7330
7331 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7332 if (!hdr) {
7333 nlmsg_free(msg);
7334 return;
7335 }
7336
7337 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7338 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7339 if (addr)
7340 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7341 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7342 if (key_id != -1)
7343 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7344 if (tsc)
7345 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7346
3b7b72ee 7347 genlmsg_end(msg, hdr);
a3b8b056 7348
463d0183
JB		 7349 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7350 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7351 return;
7352
7353 nla_put_failure:
7354 genlmsg_cancel(msg, hdr);
7355 nlmsg_free(msg);
7356}
7357
6bad8766
LR		 7358void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7359 struct ieee80211_channel *channel_before,
7360 struct ieee80211_channel *channel_after)
7361{
7362 struct sk_buff *msg;
7363 void *hdr;
7364 struct nlattr *nl_freq;
7365
fd2120ca 7366 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7367 if (!msg)
7368 return;
7369
7370 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7371 if (!hdr) {
7372 nlmsg_free(msg);
7373 return;
7374 }
7375
7376 /*
7377 * Since we are applying the beacon hint to a wiphy we know its
7378 * wiphy_idx is valid
7379 */
7380 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7381
7382 /* Before */
7383 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7384 if (!nl_freq)
7385 goto nla_put_failure;
7386 if (nl80211_msg_put_channel(msg, channel_before))
7387 goto nla_put_failure;
7388 nla_nest_end(msg, nl_freq);
7389
7390 /* After */
7391 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7392 if (!nl_freq)
7393 goto nla_put_failure;
7394 if (nl80211_msg_put_channel(msg, channel_after))
7395 goto nla_put_failure;
7396 nla_nest_end(msg, nl_freq);
7397
3b7b72ee 7398 genlmsg_end(msg, hdr);
6bad8766 7399
463d0183
JB		 7400 rcu_read_lock();
7401 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7402 GFP_ATOMIC);
7403 rcu_read_unlock();
6bad8766
LR		 7404
7405 return;
7406
7407nla_put_failure:
7408 genlmsg_cancel(msg, hdr);
7409 nlmsg_free(msg);
7410}
7411
9588bbd5
JM		 7412static void nl80211_send_remain_on_chan_event(
7413 int cmd, struct cfg80211_registered_device *rdev,
7414 struct net_device *netdev, u64 cookie,
7415 struct ieee80211_channel *chan,
7416 enum nl80211_channel_type channel_type,
7417 unsigned int duration, gfp_t gfp)
7418{
7419 struct sk_buff *msg;
7420 void *hdr;
7421
7422 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7423 if (!msg)
7424 return;
7425
7426 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7427 if (!hdr) {
7428 nlmsg_free(msg);
7429 return;
7430 }
7431
7432 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7433 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7434 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7435 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7436 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7437
7438 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7439 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7440
3b7b72ee 7441 genlmsg_end(msg, hdr);
9588bbd5
JM		 7442
7443 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7444 nl80211_mlme_mcgrp.id, gfp);
7445 return;
7446
7447 nla_put_failure:
7448 genlmsg_cancel(msg, hdr);
7449 nlmsg_free(msg);
7450}
7451
7452void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7453 struct net_device *netdev, u64 cookie,
7454 struct ieee80211_channel *chan,
7455 enum nl80211_channel_type channel_type,
7456 unsigned int duration, gfp_t gfp)
7457{
7458 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7459 rdev, netdev, cookie, chan,
7460 channel_type, duration, gfp);
7461}
7462
7463void nl80211_send_remain_on_channel_cancel(
7464 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7465 u64 cookie, struct ieee80211_channel *chan,
7466 enum nl80211_channel_type channel_type, gfp_t gfp)
7467{
7468 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7469 rdev, netdev, cookie, chan,
7470 channel_type, 0, gfp);
7471}
7472
98b62183
JB		 7473void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7474 struct net_device *dev, const u8 *mac_addr,
7475 struct station_info *sinfo, gfp_t gfp)
7476{
7477 struct sk_buff *msg;
7478
7479 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7480 if (!msg)
7481 return;
7482
7483 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7484 nlmsg_free(msg);
7485 return;
7486 }
7487
7488 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7489 nl80211_mlme_mcgrp.id, gfp);
7490}
7491
ec15e68b
JM		 7492void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7493 struct net_device *dev, const u8 *mac_addr,
7494 gfp_t gfp)
7495{
7496 struct sk_buff *msg;
7497 void *hdr;
7498
7499 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7500 if (!msg)
7501 return;
7502
7503 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7504 if (!hdr) {
7505 nlmsg_free(msg);
7506 return;
7507 }
7508
7509 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7510 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7511
3b7b72ee 7512 genlmsg_end(msg, hdr);
ec15e68b
JM		 7513
7514 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7515 nl80211_mlme_mcgrp.id, gfp);
7516 return;
7517
7518 nla_put_failure:
7519 genlmsg_cancel(msg, hdr);
7520 nlmsg_free(msg);
7521}
7522
b92ab5d8
JB		 7523static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7524 const u8 *addr, gfp_t gfp)
28946da7
JB		 7525{
7526 struct wireless_dev *wdev = dev->ieee80211_ptr;
7527 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7528 struct sk_buff *msg;
7529 void *hdr;
7530 int err;
7531 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7532
7533 if (!nlpid)
7534 return false;
7535
7536 msg = nlmsg_new(100, gfp);
7537 if (!msg)
7538 return true;
7539
b92ab5d8 7540 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7541 if (!hdr) {
7542 nlmsg_free(msg);
7543 return true;
7544 }
7545
7546 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7547 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7548 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7549
7550 err = genlmsg_end(msg, hdr);
7551 if (err < 0) {
7552 nlmsg_free(msg);
7553 return true;
7554 }
7555
7556 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7557 return true;
7558
7559 nla_put_failure:
7560 genlmsg_cancel(msg, hdr);
7561 nlmsg_free(msg);
7562 return true;
7563}
7564
b92ab5d8
JB		 7565bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7566{
7567 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7568 addr, gfp);
7569}
7570
7571bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7572 const u8 *addr, gfp_t gfp)
7573{
7574 return __nl80211_unexpected_frame(dev,
7575 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7576 addr, gfp);
7577}
7578
2e161f78
JB		 7579int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7580 struct net_device *netdev, u32 nlpid,
7581 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7582{
7583 struct sk_buff *msg;
7584 void *hdr;
026331c4
JM		 7585
7586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7587 if (!msg)
7588 return -ENOMEM;
7589
2e161f78 7590 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7591 if (!hdr) {
7592 nlmsg_free(msg);
7593 return -ENOMEM;
7594 }
7595
7596 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7597 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7598 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7599 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7600
3b7b72ee 7601 genlmsg_end(msg, hdr);
026331c4 7602
3b7b72ee 7603 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7604
7605 nla_put_failure:
7606 genlmsg_cancel(msg, hdr);
7607 nlmsg_free(msg);
7608 return -ENOBUFS;
7609}
7610
2e161f78
JB		 7611void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7612 struct net_device *netdev, u64 cookie,
7613 const u8 *buf, size_t len, bool ack,
7614 gfp_t gfp)
026331c4
JM		 7615{
7616 struct sk_buff *msg;
7617 void *hdr;
7618
7619 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7620 if (!msg)
7621 return;
7622
2e161f78 7623 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7624 if (!hdr) {
7625 nlmsg_free(msg);
7626 return;
7627 }
7628
7629 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7630 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7631 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7632 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7633 if (ack)
7634 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7635
3b7b72ee 7636 genlmsg_end(msg, hdr);
026331c4
JM		 7637
7638 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7639 return;
7640
7641 nla_put_failure:
7642 genlmsg_cancel(msg, hdr);
7643 nlmsg_free(msg);
7644}
7645
d6dc1a38
JO		 7646void
7647nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7648 struct net_device *netdev,
7649 enum nl80211_cqm_rssi_threshold_event rssi_event,
7650 gfp_t gfp)
7651{
7652 struct sk_buff *msg;
7653 struct nlattr *pinfoattr;
7654 void *hdr;
7655
7656 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7657 if (!msg)
7658 return;
7659
7660 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7661 if (!hdr) {
7662 nlmsg_free(msg);
7663 return;
7664 }
7665
7666 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7667 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7668
7669 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7670 if (!pinfoattr)
7671 goto nla_put_failure;
7672
7673 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7674 rssi_event);
7675
7676 nla_nest_end(msg, pinfoattr);
7677
3b7b72ee 7678 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7679
7680 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7681 nl80211_mlme_mcgrp.id, gfp);
7682 return;
7683
7684 nla_put_failure:
7685 genlmsg_cancel(msg, hdr);
7686 nlmsg_free(msg);
7687}
7688
e5497d76
JB		 7689void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7690 struct net_device *netdev, const u8 *bssid,
7691 const u8 *replay_ctr, gfp_t gfp)
7692{
7693 struct sk_buff *msg;
7694 struct nlattr *rekey_attr;
7695 void *hdr;
7696
7697 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7698 if (!msg)
7699 return;
7700
7701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7702 if (!hdr) {
7703 nlmsg_free(msg);
7704 return;
7705 }
7706
7707 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7708 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7709 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7710
7711 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7712 if (!rekey_attr)
7713 goto nla_put_failure;
7714
7715 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7716 NL80211_REPLAY_CTR_LEN, replay_ctr);
7717
7718 nla_nest_end(msg, rekey_attr);
7719
3b7b72ee 7720 genlmsg_end(msg, hdr);
e5497d76
JB		 7721
7722 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7723 nl80211_mlme_mcgrp.id, gfp);
7724 return;
7725
7726 nla_put_failure:
7727 genlmsg_cancel(msg, hdr);
7728 nlmsg_free(msg);
7729}
7730
c9df56b4
JM		 7731void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7732 struct net_device *netdev, int index,
7733 const u8 *bssid, bool preauth, gfp_t gfp)
7734{
7735 struct sk_buff *msg;
7736 struct nlattr *attr;
7737 void *hdr;
7738
7739 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7740 if (!msg)
7741 return;
7742
7743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7744 if (!hdr) {
7745 nlmsg_free(msg);
7746 return;
7747 }
7748
7749 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7750 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7751
7752 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7753 if (!attr)
7754 goto nla_put_failure;
7755
7756 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7757 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7758 if (preauth)
7759 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7760
7761 nla_nest_end(msg, attr);
7762
3b7b72ee 7763 genlmsg_end(msg, hdr);
c9df56b4
JM		 7764
7765 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7766 nl80211_mlme_mcgrp.id, gfp);
7767 return;
7768
7769 nla_put_failure:
7770 genlmsg_cancel(msg, hdr);
7771 nlmsg_free(msg);
7772}
7773
c063dbf5
JB		 7774void
7775nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7776 struct net_device *netdev, const u8 *peer,
7777 u32 num_packets, gfp_t gfp)
7778{
7779 struct sk_buff *msg;
7780 struct nlattr *pinfoattr;
7781 void *hdr;
7782
7783 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7784 if (!msg)
7785 return;
7786
7787 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7788 if (!hdr) {
7789 nlmsg_free(msg);
7790 return;
7791 }
7792
7793 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7794 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7795 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7796
7797 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7798 if (!pinfoattr)
7799 goto nla_put_failure;
7800
7801 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7802
7803 nla_nest_end(msg, pinfoattr);
7804
3b7b72ee 7805 genlmsg_end(msg, hdr);
c063dbf5
JB		 7806
7807 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7808 nl80211_mlme_mcgrp.id, gfp);
7809 return;
7810
7811 nla_put_failure:
7812 genlmsg_cancel(msg, hdr);
7813 nlmsg_free(msg);
7814}
7815
7f6cf311
JB		 7816void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7817 u64 cookie, bool acked, gfp_t gfp)
7818{
7819 struct wireless_dev *wdev = dev->ieee80211_ptr;
7820 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7821 struct sk_buff *msg;
7822 void *hdr;
7823 int err;
7824
7825 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7826 if (!msg)
7827 return;
7828
7829 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7830 if (!hdr) {
7831 nlmsg_free(msg);
7832 return;
7833 }
7834
7835 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7836 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7838 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7839 if (acked)
7840 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7841
7842 err = genlmsg_end(msg, hdr);
7843 if (err < 0) {
7844 nlmsg_free(msg);
7845 return;
7846 }
7847
7848 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7849 nl80211_mlme_mcgrp.id, gfp);
7850 return;
7851
7852 nla_put_failure:
7853 genlmsg_cancel(msg, hdr);
7854 nlmsg_free(msg);
7855}
7856EXPORT_SYMBOL(cfg80211_probe_status);
7857
5e760230
JB		 7858void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7859 const u8 *frame, size_t len,
7860 int freq, gfp_t gfp)
7861{
7862 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7863 struct sk_buff *msg;
7864 void *hdr;
7865 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7866
7867 if (!nlpid)
7868 return;
7869
7870 msg = nlmsg_new(len + 100, gfp);
7871 if (!msg)
7872 return;
7873
7874 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7875 if (!hdr) {
7876 nlmsg_free(msg);
7877 return;
7878 }
7879
7880 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7881 if (freq)
7882 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7883 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7884
7885 genlmsg_end(msg, hdr);
7886
7887 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7888 return;
7889
7890 nla_put_failure:
7891 genlmsg_cancel(msg, hdr);
7892 nlmsg_free(msg);
7893}
7894EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7895
026331c4
JM		 7896static int nl80211_netlink_notify(struct notifier_block * nb,
7897 unsigned long state,
7898 void *_notify)
7899{
7900 struct netlink_notify *notify = _notify;
7901 struct cfg80211_registered_device *rdev;
7902 struct wireless_dev *wdev;
7903
7904 if (state != NETLINK_URELEASE)
7905 return NOTIFY_DONE;
7906
7907 rcu_read_lock();
7908
5e760230 7909 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7910 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7911 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7912 if (rdev->ap_beacons_nlpid == notify->pid)
7913 rdev->ap_beacons_nlpid = 0;
7914 }
026331c4
JM		 7915
7916 rcu_read_unlock();
7917
7918 return NOTIFY_DONE;
7919}
7920
7921static struct notifier_block nl80211_netlink_notifier = {
7922 .notifier_call = nl80211_netlink_notify,
7923};
7924
55682965
JB		 7925/* initialisation/exit functions */
7926
7927int nl80211_init(void)
7928{
0d63cbb5 7929 int err;
55682965 7930
0d63cbb5
MM		 7931 err = genl_register_family_with_ops(&nl80211_fam,
7932 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7933 if (err)
7934 return err;
7935
55682965
JB		 7936 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7937 if (err)
7938 goto err_out;
7939
2a519311
JB		 7940 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7941 if (err)
7942 goto err_out;
7943
73d54c9e
LR		 7944 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7945 if (err)
7946 goto err_out;
7947
6039f6d2
JM		 7948 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7949 if (err)
7950 goto err_out;
7951
aff89a9b
JB		 7952#ifdef CONFIG_NL80211_TESTMODE
7953 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7954 if (err)
7955 goto err_out;
7956#endif
7957
026331c4
JM		 7958 err = netlink_register_notifier(&nl80211_netlink_notifier);
7959 if (err)
7960 goto err_out;
7961
55682965
JB		 7962 return 0;
7963 err_out:
7964 genl_unregister_family(&nl80211_fam);
7965 return err;
7966}
7967
7968void nl80211_exit(void)
7969{
026331c4 7970 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7971 genl_unregister_family(&nl80211_fam);
7972}
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