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mac80211: remove debugfs noack test
[mirror_ubuntu-zesty-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 */
463d0183 50static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 51 struct cfg80211_registered_device **rdev,
55682965
JB		 52 struct net_device **dev)
53{
463d0183 54 struct nlattr **attrs = info->attrs;
55682965
JB		 55 int ifindex;
56
bba95fef 57 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 58 return -EINVAL;
59
bba95fef 60 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 61 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 62 if (!*dev)
63 return -ENODEV;
64
463d0183 65 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 66 if (IS_ERR(*rdev)) {
55682965 67 dev_put(*dev);
79c97e97 68 return PTR_ERR(*rdev);
55682965
JB		 69 }
70
71 return 0;
72}
73
74/* policy for the attributes */
b54452b0 75static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 76 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
77 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 78 .len = 20-1 },
31888487 79 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 80 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 81 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 82 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
84 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
85 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 86 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 87
88 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
90 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 91
92 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 93 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 94
b9454e83 95 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 96 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
97 .len = WLAN_MAX_KEY_LEN },
98 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
99 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
100 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 101 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 102 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 103
104 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
105 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
106 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
107 .len = IEEE80211_MAX_DATA_LEN },
108 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
109 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 110 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
111 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
112 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
113 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 115 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 116 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 117 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 118 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
119 .len = IEEE80211_MAX_MESH_ID_LEN },
120 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 121
b2e1b302
LR		 122 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
123 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
124
9f1ba906
JM		 125 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
127 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 128 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
129 .len = NL80211_MAX_SUPP_RATES },
50b12f59 130 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 131
24bdd9f4 132 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 133 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 134
6c739419 135 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 136
137 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
138 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
139 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 140 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
141 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 142
143 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
144 .len = IEEE80211_MAX_SSID_LEN },
145 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
146 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 147 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 148 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 149 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 150 [NL80211_ATTR_STA_FLAGS2] = {
151 .len = sizeof(struct nl80211_sta_flag_update),
152 },
3f77316c 153 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 154 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
155 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 156 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
157 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
158 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 159 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 160 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 161 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
162 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 163 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
164 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 165 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 166 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
167 .len = IEEE80211_MAX_DATA_LEN },
168 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 169 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 170 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 171 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 172 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 173 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
174 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 175 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 176 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
177 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 178 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 179 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 180 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 181 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 182 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 183 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 184 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 185 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 186 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 187 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
188 .len = IEEE80211_MAX_DATA_LEN },
189 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
190 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 191 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 192 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 193 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 194 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
197 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
198 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 199 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 200 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
201 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 202 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 203 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
204 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
205 .len = NL80211_HT_CAPABILITY_LEN
206 },
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];
430 int err = nla_parse_nested(kdt,
431 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
432 tb[NL80211_KEY_DEFAULT_TYPES],
433 nl80211_key_default_policy);
434 if (err)
435 return err;
436
437 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
438 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
439 }
440
b9454e83
JB		 441 return 0;
442}
443
444static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
445{
446 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
447 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
448 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
449 }
450
451 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
452 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
453 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
454 }
455
456 if (info->attrs[NL80211_ATTR_KEY_IDX])
457 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
458
459 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
460 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
461
462 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
463 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
464
dbd2fd65
JB		 465 if (k->def) {
466 k->def_uni = true;
467 k->def_multi = true;
468 }
469 if (k->defmgmt)
470 k->def_multi = true;
471
e31b8213
JB		 472 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
473 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
474 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
475 return -EINVAL;
476 }
477
dbd2fd65
JB		 478 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
479 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
480 int err = nla_parse_nested(
481 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
482 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
483 nl80211_key_default_policy);
484 if (err)
485 return err;
486
487 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
488 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
489 }
490
b9454e83
JB		 491 return 0;
492}
493
494static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
495{
496 int err;
497
498 memset(k, 0, sizeof(*k));
499 k->idx = -1;
e31b8213 500 k->type = -1;
b9454e83
JB		 501
502 if (info->attrs[NL80211_ATTR_KEY])
503 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
504 else
505 err = nl80211_parse_key_old(info, k);
506
507 if (err)
508 return err;
509
510 if (k->def && k->defmgmt)
511 return -EINVAL;
512
dbd2fd65
JB		 513 if (k->defmgmt) {
514 if (k->def_uni || !k->def_multi)
515 return -EINVAL;
516 }
517
b9454e83
JB		 518 if (k->idx != -1) {
519 if (k->defmgmt) {
520 if (k->idx < 4 || k->idx > 5)
521 return -EINVAL;
522 } else if (k->def) {
523 if (k->idx < 0 || k->idx > 3)
524 return -EINVAL;
525 } else {
526 if (k->idx < 0 || k->idx > 5)
527 return -EINVAL;
528 }
529 }
530
531 return 0;
532}
533
fffd0934
JB		 534static struct cfg80211_cached_keys *
535nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
536 struct nlattr *keys)
537{
538 struct key_parse parse;
539 struct nlattr *key;
540 struct cfg80211_cached_keys *result;
541 int rem, err, def = 0;
542
543 result = kzalloc(sizeof(*result), GFP_KERNEL);
544 if (!result)
545 return ERR_PTR(-ENOMEM);
546
547 result->def = -1;
548 result->defmgmt = -1;
549
550 nla_for_each_nested(key, keys, rem) {
551 memset(&parse, 0, sizeof(parse));
552 parse.idx = -1;
553
554 err = nl80211_parse_key_new(key, &parse);
555 if (err)
556 goto error;
557 err = -EINVAL;
558 if (!parse.p.key)
559 goto error;
560 if (parse.idx < 0 || parse.idx > 4)
561 goto error;
562 if (parse.def) {
563 if (def)
564 goto error;
565 def = 1;
566 result->def = parse.idx;
dbd2fd65
JB		 567 if (!parse.def_uni || !parse.def_multi)
568 goto error;
fffd0934
JB		 569 } else if (parse.defmgmt)
570 goto error;
571 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 572 parse.idx, false, NULL);
fffd0934
JB		 573 if (err)
574 goto error;
575 result->params[parse.idx].cipher = parse.p.cipher;
576 result->params[parse.idx].key_len = parse.p.key_len;
577 result->params[parse.idx].key = result->data[parse.idx];
578 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
579 }
580
581 return result;
582 error:
583 kfree(result);
584 return ERR_PTR(err);
585}
586
587static int nl80211_key_allowed(struct wireless_dev *wdev)
588{
589 ASSERT_WDEV_LOCK(wdev);
590
fffd0934
JB		 591 switch (wdev->iftype) {
592 case NL80211_IFTYPE_AP:
593 case NL80211_IFTYPE_AP_VLAN:
074ac8df 594 case NL80211_IFTYPE_P2P_GO:
ff973af7 595 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 596 break;
597 case NL80211_IFTYPE_ADHOC:
598 if (!wdev->current_bss)
599 return -ENOLINK;
600 break;
601 case NL80211_IFTYPE_STATION:
074ac8df 602 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 603 if (wdev->sme_state != CFG80211_SME_CONNECTED)
604 return -ENOLINK;
605 break;
606 default:
607 return -EINVAL;
608 }
609
610 return 0;
611}
612
7527a782
JB		 613static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
614{
615 struct nlattr *nl_modes = nla_nest_start(msg, attr);
616 int i;
617
618 if (!nl_modes)
619 goto nla_put_failure;
620
621 i = 0;
622 while (ifmodes) {
623 if (ifmodes & 1)
624 NLA_PUT_FLAG(msg, i);
625 ifmodes >>= 1;
626 i++;
627 }
628
629 nla_nest_end(msg, nl_modes);
630 return 0;
631
632nla_put_failure:
633 return -ENOBUFS;
634}
635
636static int nl80211_put_iface_combinations(struct wiphy *wiphy,
637 struct sk_buff *msg)
638{
639 struct nlattr *nl_combis;
640 int i, j;
641
642 nl_combis = nla_nest_start(msg,
643 NL80211_ATTR_INTERFACE_COMBINATIONS);
644 if (!nl_combis)
645 goto nla_put_failure;
646
647 for (i = 0; i < wiphy->n_iface_combinations; i++) {
648 const struct ieee80211_iface_combination *c;
649 struct nlattr *nl_combi, *nl_limits;
650
651 c = &wiphy->iface_combinations[i];
652
653 nl_combi = nla_nest_start(msg, i + 1);
654 if (!nl_combi)
655 goto nla_put_failure;
656
657 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
658 if (!nl_limits)
659 goto nla_put_failure;
660
661 for (j = 0; j < c->n_limits; j++) {
662 struct nlattr *nl_limit;
663
664 nl_limit = nla_nest_start(msg, j + 1);
665 if (!nl_limit)
666 goto nla_put_failure;
667 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
668 c->limits[j].max);
669 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
670 c->limits[j].types))
671 goto nla_put_failure;
672 nla_nest_end(msg, nl_limit);
673 }
674
675 nla_nest_end(msg, nl_limits);
676
677 if (c->beacon_int_infra_match)
678 NLA_PUT_FLAG(msg,
679 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
680 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
681 c->num_different_channels);
682 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
683 c->max_interfaces);
684
685 nla_nest_end(msg, nl_combi);
686 }
687
688 nla_nest_end(msg, nl_combis);
689
690 return 0;
691nla_put_failure:
692 return -ENOBUFS;
693}
694
55682965
JB		 695static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
696 struct cfg80211_registered_device *dev)
697{
698 void *hdr;
ee688b00
JB		 699 struct nlattr *nl_bands, *nl_band;
700 struct nlattr *nl_freqs, *nl_freq;
701 struct nlattr *nl_rates, *nl_rate;
8fdc621d 702 struct nlattr *nl_cmds;
ee688b00
JB		 703 enum ieee80211_band band;
704 struct ieee80211_channel *chan;
705 struct ieee80211_rate *rate;
706 int i;
2e161f78
JB		 707 const struct ieee80211_txrx_stypes *mgmt_stypes =
708 dev->wiphy.mgmt_stypes;
55682965
JB		 709
710 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
711 if (!hdr)
712 return -1;
713
b5850a7a 714 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 715 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 716
f5ea9120
JB		 717 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
718 cfg80211_rdev_list_generation);
719
b9a5f8ca
JM		 720 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
721 dev->wiphy.retry_short);
722 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
723 dev->wiphy.retry_long);
724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
725 dev->wiphy.frag_threshold);
726 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
727 dev->wiphy.rts_threshold);
81077e82
LT		 728 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
729 dev->wiphy.coverage_class);
2a519311
JB		 730 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
731 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 732 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
733 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 734 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
735 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 736 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
737 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 738 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
739 dev->wiphy.max_match_sets);
ee688b00 740
e31b8213
JB		 741 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
742 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 743 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
744 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 745 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
746 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 747 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
748 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 749 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
750 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
751 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
752 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 753
25e47c18
JB		 754 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
755 sizeof(u32) * dev->wiphy.n_cipher_suites,
756 dev->wiphy.cipher_suites);
757
67fbb16b
SO		 758 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
759 dev->wiphy.max_num_pmkids);
760
c0692b8f
JB		 761 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
762 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
763
39fd5de4
BR		 764 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
765 dev->wiphy.available_antennas_tx);
766 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
767 dev->wiphy.available_antennas_rx);
768
87bbbe22
AN		 769 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
770 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
771 dev->wiphy.probe_resp_offload);
772
7f531e03
BR		 773 if ((dev->wiphy.available_antennas_tx ||
774 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 775 u32 tx_ant = 0, rx_ant = 0;
776 int res;
777 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
778 if (!res) {
779 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
781 }
782 }
783
7527a782
JB		 784 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
785 dev->wiphy.interface_modes))
f59ac048
LR		 786 goto nla_put_failure;
787
ee688b00
JB		 788 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
789 if (!nl_bands)
790 goto nla_put_failure;
791
792 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
793 if (!dev->wiphy.bands[band])
794 continue;
795
796 nl_band = nla_nest_start(msg, band);
797 if (!nl_band)
798 goto nla_put_failure;
799
d51626df
JB		 800 /* add HT info */
801 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
802 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
803 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
804 &dev->wiphy.bands[band]->ht_cap.mcs);
805 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
806 dev->wiphy.bands[band]->ht_cap.cap);
807 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
808 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
809 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
810 dev->wiphy.bands[band]->ht_cap.ampdu_density);
811 }
812
ee688b00
JB		 813 /* add frequencies */
814 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
815 if (!nl_freqs)
816 goto nla_put_failure;
817
818 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
819 nl_freq = nla_nest_start(msg, i);
820 if (!nl_freq)
821 goto nla_put_failure;
822
823 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 824
825 if (nl80211_msg_put_channel(msg, chan))
826 goto nla_put_failure;
e2f367f2 827
ee688b00
JB		 828 nla_nest_end(msg, nl_freq);
829 }
830
831 nla_nest_end(msg, nl_freqs);
832
833 /* add bitrates */
834 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
835 if (!nl_rates)
836 goto nla_put_failure;
837
838 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
839 nl_rate = nla_nest_start(msg, i);
840 if (!nl_rate)
841 goto nla_put_failure;
842
843 rate = &dev->wiphy.bands[band]->bitrates[i];
844 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
845 rate->bitrate);
846 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
847 NLA_PUT_FLAG(msg,
848 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
849
850 nla_nest_end(msg, nl_rate);
851 }
852
853 nla_nest_end(msg, nl_rates);
854
855 nla_nest_end(msg, nl_band);
856 }
857 nla_nest_end(msg, nl_bands);
858
8fdc621d
JB		 859 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
860 if (!nl_cmds)
861 goto nla_put_failure;
862
863 i = 0;
864#define CMD(op, n) \
865 do { \
866 if (dev->ops->op) { \
867 i++; \
868 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
869 } \
870 } while (0)
871
872 CMD(add_virtual_intf, NEW_INTERFACE);
873 CMD(change_virtual_intf, SET_INTERFACE);
874 CMD(add_key, NEW_KEY);
875 CMD(add_beacon, NEW_BEACON);
876 CMD(add_station, NEW_STATION);
877 CMD(add_mpath, NEW_MPATH);
24bdd9f4 878 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 879 CMD(change_bss, SET_BSS);
636a5d36
JM		 880 CMD(auth, AUTHENTICATE);
881 CMD(assoc, ASSOCIATE);
882 CMD(deauth, DEAUTHENTICATE);
883 CMD(disassoc, DISASSOCIATE);
04a773ad 884 CMD(join_ibss, JOIN_IBSS);
29cbe68c 885 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 886 CMD(set_pmksa, SET_PMKSA);
887 CMD(del_pmksa, DEL_PMKSA);
888 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 889 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
890 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 891 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 892 CMD(mgmt_tx, FRAME);
f7ca38df 893 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 894 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 895 i++;
896 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
897 }
f444de05 898 CMD(set_channel, SET_CHANNEL);
e8347eba 899 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 900 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
901 CMD(tdls_mgmt, TDLS_MGMT);
902 CMD(tdls_oper, TDLS_OPER);
903 }
807f8a8c
LC		 904 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
905 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 906 CMD(probe_client, PROBE_CLIENT);
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
41ade00f
JB		 1762struct get_key_cookie {
1763 struct sk_buff *msg;
1764 int error;
b9454e83 1765 int idx;
41ade00f
JB		 1766};
1767
1768static void get_key_callback(void *c, struct key_params *params)
1769{
b9454e83 1770 struct nlattr *key;
41ade00f
JB		 1771 struct get_key_cookie *cookie = c;
1772
1773 if (params->key)
1774 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1775 params->key_len, params->key);
1776
1777 if (params->seq)
1778 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1779 params->seq_len, params->seq);
1780
1781 if (params->cipher)
1782 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1783 params->cipher);
1784
b9454e83
JB		 1785 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1786 if (!key)
1787 goto nla_put_failure;
1788
1789 if (params->key)
1790 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1791 params->key_len, params->key);
1792
1793 if (params->seq)
1794 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1795 params->seq_len, params->seq);
1796
1797 if (params->cipher)
1798 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1799 params->cipher);
1800
1801 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1802
1803 nla_nest_end(cookie->msg, key);
1804
41ade00f
JB		 1805 return;
1806 nla_put_failure:
1807 cookie->error = 1;
1808}
1809
1810static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1811{
4c476991 1812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1813 int err;
4c476991 1814 struct net_device *dev = info->user_ptr[1];
41ade00f 1815 u8 key_idx = 0;
e31b8213
JB		 1816 const u8 *mac_addr = NULL;
1817 bool pairwise;
41ade00f
JB		 1818 struct get_key_cookie cookie = {
1819 .error = 0,
1820 };
1821 void *hdr;
1822 struct sk_buff *msg;
1823
1824 if (info->attrs[NL80211_ATTR_KEY_IDX])
1825 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1826
3cfcf6ac 1827 if (key_idx > 5)
41ade00f
JB		 1828 return -EINVAL;
1829
1830 if (info->attrs[NL80211_ATTR_MAC])
1831 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1832
e31b8213
JB		 1833 pairwise = !!mac_addr;
1834 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1835 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1836 if (kt >= NUM_NL80211_KEYTYPES)
1837 return -EINVAL;
1838 if (kt != NL80211_KEYTYPE_GROUP &&
1839 kt != NL80211_KEYTYPE_PAIRWISE)
1840 return -EINVAL;
1841 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1842 }
1843
4c476991
JB		 1844 if (!rdev->ops->get_key)
1845 return -EOPNOTSUPP;
41ade00f 1846
fd2120ca 1847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1848 if (!msg)
1849 return -ENOMEM;
41ade00f
JB		 1850
1851 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1852 NL80211_CMD_NEW_KEY);
4c476991
JB		 1853 if (IS_ERR(hdr))
1854 return PTR_ERR(hdr);
41ade00f
JB		 1855
1856 cookie.msg = msg;
b9454e83 1857 cookie.idx = key_idx;
41ade00f
JB		 1858
1859 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1860 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1861 if (mac_addr)
1862 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1863
e31b8213
JB		 1864 if (pairwise && mac_addr &&
1865 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1866 return -ENOENT;
1867
1868 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1869 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1870
1871 if (err)
6c95e2a2 1872 goto free_msg;
41ade00f
JB		 1873
1874 if (cookie.error)
1875 goto nla_put_failure;
1876
1877 genlmsg_end(msg, hdr);
4c476991 1878 return genlmsg_reply(msg, info);
41ade00f
JB		 1879
1880 nla_put_failure:
1881 err = -ENOBUFS;
6c95e2a2 1882 free_msg:
41ade00f 1883 nlmsg_free(msg);
41ade00f
JB		 1884 return err;
1885}
1886
1887static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1888{
4c476991 1889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1890 struct key_parse key;
41ade00f 1891 int err;
4c476991 1892 struct net_device *dev = info->user_ptr[1];
41ade00f 1893
b9454e83
JB		 1894 err = nl80211_parse_key(info, &key);
1895 if (err)
1896 return err;
41ade00f 1897
b9454e83 1898 if (key.idx < 0)
41ade00f
JB		 1899 return -EINVAL;
1900
b9454e83
JB		 1901 /* only support setting default key */
1902 if (!key.def && !key.defmgmt)
41ade00f
JB		 1903 return -EINVAL;
1904
dbd2fd65 1905 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1906
dbd2fd65
JB		 1907 if (key.def) {
1908 if (!rdev->ops->set_default_key) {
1909 err = -EOPNOTSUPP;
1910 goto out;
1911 }
41ade00f 1912
dbd2fd65
JB		 1913 err = nl80211_key_allowed(dev->ieee80211_ptr);
1914 if (err)
1915 goto out;
1916
dbd2fd65
JB		 1917 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1918 key.def_uni, key.def_multi);
1919
1920 if (err)
1921 goto out;
fffd0934 1922
3d23e349 1923#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1924 dev->ieee80211_ptr->wext.default_key = key.idx;
1925#endif
1926 } else {
1927 if (key.def_uni || !key.def_multi) {
1928 err = -EINVAL;
1929 goto out;
1930 }
1931
1932 if (!rdev->ops->set_default_mgmt_key) {
1933 err = -EOPNOTSUPP;
1934 goto out;
1935 }
1936
1937 err = nl80211_key_allowed(dev->ieee80211_ptr);
1938 if (err)
1939 goto out;
1940
1941 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1942 dev, key.idx);
1943 if (err)
1944 goto out;
1945
1946#ifdef CONFIG_CFG80211_WEXT
1947 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1948#endif
dbd2fd65
JB		 1949 }
1950
1951 out:
fffd0934 1952 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1953
41ade00f
JB		 1954 return err;
1955}
1956
1957static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1958{
4c476991 1959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1960 int err;
4c476991 1961 struct net_device *dev = info->user_ptr[1];
b9454e83 1962 struct key_parse key;
e31b8213 1963 const u8 *mac_addr = NULL;
41ade00f 1964
b9454e83
JB		 1965 err = nl80211_parse_key(info, &key);
1966 if (err)
1967 return err;
41ade00f 1968
b9454e83 1969 if (!key.p.key)
41ade00f
JB		 1970 return -EINVAL;
1971
41ade00f
JB		 1972 if (info->attrs[NL80211_ATTR_MAC])
1973 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1974
e31b8213
JB		 1975 if (key.type == -1) {
1976 if (mac_addr)
1977 key.type = NL80211_KEYTYPE_PAIRWISE;
1978 else
1979 key.type = NL80211_KEYTYPE_GROUP;
1980 }
1981
1982 /* for now */
1983 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1984 key.type != NL80211_KEYTYPE_GROUP)
1985 return -EINVAL;
1986
4c476991
JB		 1987 if (!rdev->ops->add_key)
1988 return -EOPNOTSUPP;
25e47c18 1989
e31b8213
JB		 1990 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1991 key.type == NL80211_KEYTYPE_PAIRWISE,
1992 mac_addr))
4c476991 1993 return -EINVAL;
41ade00f 1994
fffd0934
JB		 1995 wdev_lock(dev->ieee80211_ptr);
1996 err = nl80211_key_allowed(dev->ieee80211_ptr);
1997 if (!err)
1998 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1999 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2000 mac_addr, &key.p);
2001 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2002
41ade00f
JB		 2003 return err;
2004}
2005
2006static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2007{
4c476991 2008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2009 int err;
4c476991 2010 struct net_device *dev = info->user_ptr[1];
41ade00f 2011 u8 *mac_addr = NULL;
b9454e83 2012 struct key_parse key;
41ade00f 2013
b9454e83
JB		 2014 err = nl80211_parse_key(info, &key);
2015 if (err)
2016 return err;
41ade00f
JB		 2017
2018 if (info->attrs[NL80211_ATTR_MAC])
2019 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2020
e31b8213
JB		 2021 if (key.type == -1) {
2022 if (mac_addr)
2023 key.type = NL80211_KEYTYPE_PAIRWISE;
2024 else
2025 key.type = NL80211_KEYTYPE_GROUP;
2026 }
2027
2028 /* for now */
2029 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2030 key.type != NL80211_KEYTYPE_GROUP)
2031 return -EINVAL;
2032
4c476991
JB		 2033 if (!rdev->ops->del_key)
2034 return -EOPNOTSUPP;
41ade00f 2035
fffd0934
JB		 2036 wdev_lock(dev->ieee80211_ptr);
2037 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2038
2039 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2040 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2041 err = -ENOENT;
2042
fffd0934 2043 if (!err)
e31b8213
JB		 2044 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2045 key.type == NL80211_KEYTYPE_PAIRWISE,
2046 mac_addr);
41ade00f 2047
3d23e349 2048#ifdef CONFIG_CFG80211_WEXT
08645126 2049 if (!err) {
b9454e83 2050 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2051 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2052 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2053 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2054 }
2055#endif
fffd0934 2056 wdev_unlock(dev->ieee80211_ptr);
08645126 2057
41ade00f
JB		 2058 return err;
2059}
2060
ed1b6cc7
JB		 2061static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2062{
2063 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2064 struct beacon_parameters *info);
4c476991
JB		 2065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2066 struct net_device *dev = info->user_ptr[1];
56d1893d 2067 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2068 struct beacon_parameters params;
56d1893d 2069 int haveinfo = 0, err;
ed1b6cc7 2070
9946ecfb
JM		 2071 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2072 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2073 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2074 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2075 return -EINVAL;
2076
074ac8df 2077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2079 return -EOPNOTSUPP;
eec60b03 2080
56d1893d
JB		 2081 memset(&params, 0, sizeof(params));
2082
ed1b6cc7
JB		 2083 switch (info->genlhdr->cmd) {
2084 case NL80211_CMD_NEW_BEACON:
2085 /* these are required for NEW_BEACON */
2086 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2087 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2088 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2089 return -EINVAL;
ed1b6cc7 2090
56d1893d
JB		 2091 params.interval =
2092 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2093 params.dtim_period =
2094 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2095
2096 err = cfg80211_validate_beacon_int(rdev, params.interval);
2097 if (err)
2098 return err;
2099
32e9de84
JM		 2100 /*
2101 * In theory, some of these attributes could be required for
2102 * NEW_BEACON, but since they were not used when the command was
2103 * originally added, keep them optional for old user space
2104 * programs to work with drivers that do not need the additional
2105 * information.
2106 */
2107 if (info->attrs[NL80211_ATTR_SSID]) {
2108 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2109 params.ssid_len =
2110 nla_len(info->attrs[NL80211_ATTR_SSID]);
2111 if (params.ssid_len == 0 ||
2112 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2113 return -EINVAL;
2114 }
2115
2116 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2117 params.hidden_ssid = nla_get_u32(
2118 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2119 if (params.hidden_ssid !=
2120 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2121 params.hidden_ssid !=
2122 NL80211_HIDDEN_SSID_ZERO_LEN &&
2123 params.hidden_ssid !=
2124 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2125 return -EINVAL;
2126 }
2127
5fb628e9
JM		 2128 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2129
2130 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2131 params.auth_type = nla_get_u32(
2132 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2133 if (!nl80211_valid_auth_type(params.auth_type))
2134 return -EINVAL;
2135 } else
2136 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2137
2138 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2139 NL80211_MAX_NR_CIPHER_SUITES);
2140 if (err)
2141 return err;
2142
79c97e97 2143 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2144 break;
2145 case NL80211_CMD_SET_BEACON:
79c97e97 2146 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2147 break;
2148 default:
2149 WARN_ON(1);
4c476991 2150 return -EOPNOTSUPP;
ed1b6cc7
JB		 2151 }
2152
4c476991
JB		 2153 if (!call)
2154 return -EOPNOTSUPP;
ed1b6cc7 2155
ed1b6cc7
JB		 2156 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2157 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2158 params.head_len =
2159 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2160 haveinfo = 1;
2161 }
2162
2163 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2164 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2165 params.tail_len =
2166 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2167 haveinfo = 1;
2168 }
2169
4c476991
JB		 2170 if (!haveinfo)
2171 return -EINVAL;
3b85875a 2172
9946ecfb
JM		 2173 if (info->attrs[NL80211_ATTR_IE]) {
2174 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2175 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2176 }
2177
2178 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2179 params.proberesp_ies =
2180 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2181 params.proberesp_ies_len =
2182 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2183 }
2184
2185 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2186 params.assocresp_ies =
2187 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2188 params.assocresp_ies_len =
2189 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2190 }
2191
00f740e1
AN		 2192 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2193 params.probe_resp =
2194 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2195 params.probe_resp_len =
2196 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2197 }
2198
56d1893d
JB		 2199 err = call(&rdev->wiphy, dev, &params);
2200 if (!err && params.interval)
2201 wdev->beacon_interval = params.interval;
2202 return err;
ed1b6cc7
JB		 2203}
2204
2205static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2206{
4c476991
JB		 2207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2208 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2209 struct wireless_dev *wdev = dev->ieee80211_ptr;
2210 int err;
ed1b6cc7 2211
4c476991
JB		 2212 if (!rdev->ops->del_beacon)
2213 return -EOPNOTSUPP;
ed1b6cc7 2214
074ac8df 2215 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2216 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2217 return -EOPNOTSUPP;
3b85875a 2218
56d1893d
JB		 2219 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2220 if (!err)
2221 wdev->beacon_interval = 0;
2222 return err;
ed1b6cc7
JB		 2223}
2224
5727ef1b
JB		 2225static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2226 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2227 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2228 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2229 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2230 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2231};
2232
eccb8e8f
JB		 2233static int parse_station_flags(struct genl_info *info,
2234 struct station_parameters *params)
5727ef1b
JB		 2235{
2236 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2237 struct nlattr *nla;
5727ef1b
JB		 2238 int flag;
2239
eccb8e8f
JB		 2240 /*
2241 * Try parsing the new attribute first so userspace
2242 * can specify both for older kernels.
2243 */
2244 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2245 if (nla) {
2246 struct nl80211_sta_flag_update *sta_flags;
2247
2248 sta_flags = nla_data(nla);
2249 params->sta_flags_mask = sta_flags->mask;
2250 params->sta_flags_set = sta_flags->set;
2251 if ((params->sta_flags_mask |
2252 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2253 return -EINVAL;
2254 return 0;
2255 }
2256
2257 /* if present, parse the old attribute */
5727ef1b 2258
eccb8e8f 2259 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2260 if (!nla)
2261 return 0;
2262
2263 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2264 nla, sta_flags_policy))
2265 return -EINVAL;
2266
eccb8e8f
JB		 2267 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2268 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2269
2270 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2271 if (flags[flag])
eccb8e8f 2272 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2273
2274 return 0;
2275}
2276
c8dcfd8a
FF		 2277static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2278 int attr)
2279{
2280 struct nlattr *rate;
2281 u16 bitrate;
2282
2283 rate = nla_nest_start(msg, attr);
2284 if (!rate)
2285 goto nla_put_failure;
2286
2287 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2288 bitrate = cfg80211_calculate_bitrate(info);
2289 if (bitrate > 0)
2290 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2291
2292 if (info->flags & RATE_INFO_FLAGS_MCS)
2293 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2294 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2295 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2296 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2297 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2298
2299 nla_nest_end(msg, rate);
2300 return true;
2301
2302nla_put_failure:
2303 return false;
2304}
2305
fd5b74dc
JB		 2306static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2307 int flags, struct net_device *dev,
98b62183 2308 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2309{
2310 void *hdr;
f4263c98 2311 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2312
2313 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2314 if (!hdr)
2315 return -1;
2316
2317 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2318 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2319
f5ea9120
JB		 2320 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2321
2ec600d6
LCC		 2322 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2323 if (!sinfoattr)
fd5b74dc 2324 goto nla_put_failure;
ebe27c91
MSS		 2325 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2326 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2327 sinfo->connected_time);
2ec600d6
LCC		 2328 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2329 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2330 sinfo->inactive_time);
2331 if (sinfo->filled & STATION_INFO_RX_BYTES)
2332 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2333 sinfo->rx_bytes);
2334 if (sinfo->filled & STATION_INFO_TX_BYTES)
2335 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2336 sinfo->tx_bytes);
2337 if (sinfo->filled & STATION_INFO_LLID)
2338 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2339 sinfo->llid);
2340 if (sinfo->filled & STATION_INFO_PLID)
2341 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2342 sinfo->plid);
2343 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2344 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2345 sinfo->plink_state);
420e7fab
HR		 2346 if (sinfo->filled & STATION_INFO_SIGNAL)
2347 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2348 sinfo->signal);
541a45a1
BR		 2349 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2350 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2351 sinfo->signal_avg);
420e7fab 2352 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2353 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2354 NL80211_STA_INFO_TX_BITRATE))
2355 goto nla_put_failure;
2356 }
2357 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2358 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2359 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2360 goto nla_put_failure;
420e7fab 2361 }
98c8a60a
JM		 2362 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2363 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2364 sinfo->rx_packets);
2365 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2366 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2367 sinfo->tx_packets);
b206b4ef
BR		 2368 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2369 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2370 sinfo->tx_retries);
2371 if (sinfo->filled & STATION_INFO_TX_FAILED)
2372 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2373 sinfo->tx_failed);
f4263c98
PS		 2374 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2375 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2376 if (!bss_param)
2377 goto nla_put_failure;
2378
2379 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2380 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2381 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2382 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2383 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2384 NLA_PUT_FLAG(msg,
2385 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2386 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2387 sinfo->bss_param.dtim_period);
2388 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2389 sinfo->bss_param.beacon_interval);
2390
2391 nla_nest_end(msg, bss_param);
2392 }
bb6e753e
HS		 2393 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2394 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2395 sizeof(struct nl80211_sta_flag_update),
2396 &sinfo->sta_flags);
2ec600d6 2397 nla_nest_end(msg, sinfoattr);
fd5b74dc 2398
040bdf71 2399 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2400 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2401 sinfo->assoc_req_ies);
2402
fd5b74dc
JB		 2403 return genlmsg_end(msg, hdr);
2404
2405 nla_put_failure:
bc3ed28c
TG		 2406 genlmsg_cancel(msg, hdr);
2407 return -EMSGSIZE;
fd5b74dc
JB		 2408}
2409
2ec600d6 2410static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2411 struct netlink_callback *cb)
2ec600d6 2412{
2ec600d6
LCC		 2413 struct station_info sinfo;
2414 struct cfg80211_registered_device *dev;
bba95fef 2415 struct net_device *netdev;
2ec600d6 2416 u8 mac_addr[ETH_ALEN];
bba95fef 2417 int sta_idx = cb->args[1];
2ec600d6 2418 int err;
2ec600d6 2419
67748893
JB		 2420 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2421 if (err)
2422 return err;
bba95fef
JB		 2423
2424 if (!dev->ops->dump_station) {
eec60b03 2425 err = -EOPNOTSUPP;
bba95fef
JB		 2426 goto out_err;
2427 }
2428
bba95fef 2429 while (1) {
f612cedf 2430 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2431 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2432 mac_addr, &sinfo);
2433 if (err == -ENOENT)
2434 break;
2435 if (err)
3b85875a 2436 goto out_err;
bba95fef
JB		 2437
2438 if (nl80211_send_station(skb,
2439 NETLINK_CB(cb->skb).pid,
2440 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2441 netdev, mac_addr,
2442 &sinfo) < 0)
2443 goto out;
2444
2445 sta_idx++;
2446 }
2447
2448
2449 out:
2450 cb->args[1] = sta_idx;
2451 err = skb->len;
bba95fef 2452 out_err:
67748893 2453 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2454
2455 return err;
2ec600d6 2456}
fd5b74dc 2457
5727ef1b
JB		 2458static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2459{
4c476991
JB		 2460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2461 struct net_device *dev = info->user_ptr[1];
2ec600d6 2462 struct station_info sinfo;
fd5b74dc
JB		 2463 struct sk_buff *msg;
2464 u8 *mac_addr = NULL;
4c476991 2465 int err;
fd5b74dc 2466
2ec600d6 2467 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2468
2469 if (!info->attrs[NL80211_ATTR_MAC])
2470 return -EINVAL;
2471
2472 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2473
4c476991
JB		 2474 if (!rdev->ops->get_station)
2475 return -EOPNOTSUPP;
3b85875a 2476
4c476991 2477 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2478 if (err)
4c476991 2479 return err;
2ec600d6 2480
fd2120ca 2481 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2482 if (!msg)
4c476991 2483 return -ENOMEM;
fd5b74dc
JB		 2484
2485 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2486 dev, mac_addr, &sinfo) < 0) {
2487 nlmsg_free(msg);
2488 return -ENOBUFS;
2489 }
3b85875a 2490
4c476991 2491 return genlmsg_reply(msg, info);
5727ef1b
JB		 2492}
2493
2494/*
c258d2de 2495 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2496 */
80b99899
JB		 2497static struct net_device *get_vlan(struct genl_info *info,
2498 struct cfg80211_registered_device *rdev)
5727ef1b 2499{
463d0183 2500 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2501 struct net_device *v;
2502 int ret;
2503
2504 if (!vlanattr)
2505 return NULL;
2506
2507 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2508 if (!v)
2509 return ERR_PTR(-ENODEV);
2510
2511 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2512 ret = -EINVAL;
2513 goto error;
5727ef1b 2514 }
80b99899
JB		 2515
2516 if (!netif_running(v)) {
2517 ret = -ENETDOWN;
2518 goto error;
2519 }
2520
2521 return v;
2522 error:
2523 dev_put(v);
2524 return ERR_PTR(ret);
5727ef1b
JB		 2525}
2526
2527static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2528{
4c476991 2529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2530 int err;
4c476991 2531 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2532 struct station_parameters params;
2533 u8 *mac_addr = NULL;
2534
2535 memset(&params, 0, sizeof(params));
2536
2537 params.listen_interval = -1;
57cf8043 2538 params.plink_state = -1;
5727ef1b
JB		 2539
2540 if (info->attrs[NL80211_ATTR_STA_AID])
2541 return -EINVAL;
2542
2543 if (!info->attrs[NL80211_ATTR_MAC])
2544 return -EINVAL;
2545
2546 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2547
2548 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2549 params.supported_rates =
2550 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2551 params.supported_rates_len =
2552 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2553 }
2554
2555 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2556 params.listen_interval =
2557 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2558
36aedc90
JM		 2559 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2560 params.ht_capa =
2561 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2562
eccb8e8f 2563 if (parse_station_flags(info, &params))
5727ef1b
JB		 2564 return -EINVAL;
2565
2ec600d6
LCC		 2566 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2567 params.plink_action =
2568 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2569
9c3990aa
JC		 2570 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2571 params.plink_state =
2572 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2573
80b99899
JB		 2574 params.vlan = get_vlan(info, rdev);
2575 if (IS_ERR(params.vlan))
2576 return PTR_ERR(params.vlan);
a97f4424
JB		 2577
2578 /* validate settings */
2579 err = 0;
2580
2581 switch (dev->ieee80211_ptr->iftype) {
2582 case NL80211_IFTYPE_AP:
2583 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2584 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2585 /* disallow mesh-specific things */
2586 if (params.plink_action)
2587 err = -EINVAL;
2588 break;
074ac8df 2589 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2590 case NL80211_IFTYPE_STATION:
07ba55d7 2591 /* disallow things sta doesn't support */
a97f4424
JB		 2592 if (params.plink_action)
2593 err = -EINVAL;
2594 if (params.vlan)
2595 err = -EINVAL;
07ba55d7
AN		 2596 if (params.supported_rates &&
2597 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2598 err = -EINVAL;
2599 if (params.ht_capa)
2600 err = -EINVAL;
2601 if (params.listen_interval >= 0)
2602 err = -EINVAL;
07ba55d7
AN		 2603 if (params.sta_flags_mask &
2604 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2605 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2606 err = -EINVAL;
2607 /* can't change the TDLS bit */
2608 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2609 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2610 err = -EINVAL;
2611 break;
2612 case NL80211_IFTYPE_MESH_POINT:
2613 /* disallow things mesh doesn't support */
2614 if (params.vlan)
2615 err = -EINVAL;
2616 if (params.ht_capa)
2617 err = -EINVAL;
2618 if (params.listen_interval >= 0)
2619 err = -EINVAL;
b39c48fa
JC		 2620 if (params.sta_flags_mask &
2621 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2622 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2623 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2624 err = -EINVAL;
2625 break;
2626 default:
2627 err = -EINVAL;
034d655e
JB		 2628 }
2629
5727ef1b
JB		 2630 if (err)
2631 goto out;
2632
79c97e97 2633 if (!rdev->ops->change_station) {
5727ef1b
JB		 2634 err = -EOPNOTSUPP;
2635 goto out;
2636 }
2637
79c97e97 2638 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2639
2640 out:
2641 if (params.vlan)
2642 dev_put(params.vlan);
3b85875a 2643
5727ef1b
JB		 2644 return err;
2645}
2646
c75786c9
EP		 2647static struct nla_policy
2648nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2649 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2650 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2651};
2652
5727ef1b
JB		 2653static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2654{
4c476991 2655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2656 int err;
4c476991 2657 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2658 struct station_parameters params;
2659 u8 *mac_addr = NULL;
2660
2661 memset(&params, 0, sizeof(params));
2662
2663 if (!info->attrs[NL80211_ATTR_MAC])
2664 return -EINVAL;
2665
5727ef1b
JB		 2666 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2667 return -EINVAL;
2668
2669 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2670 return -EINVAL;
2671
0e956c13
TLSC		 2672 if (!info->attrs[NL80211_ATTR_STA_AID])
2673 return -EINVAL;
2674
5727ef1b
JB		 2675 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2676 params.supported_rates =
2677 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2678 params.supported_rates_len =
2679 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2680 params.listen_interval =
2681 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2682
0e956c13
TLSC		 2683 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2684 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2685 return -EINVAL;
51b50fbe 2686
36aedc90
JM		 2687 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2688 params.ht_capa =
2689 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2690
96b78dff
JC		 2691 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2692 params.plink_action =
2693 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2694
eccb8e8f 2695 if (parse_station_flags(info, &params))
5727ef1b
JB		 2696 return -EINVAL;
2697
c75786c9 2698 /* parse WME attributes if sta is WME capable */
cedb5412 2699 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2700 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2701 info->attrs[NL80211_ATTR_STA_WME]) {
2702 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2703 struct nlattr *nla;
2704
2705 nla = info->attrs[NL80211_ATTR_STA_WME];
2706 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2707 nl80211_sta_wme_policy);
2708 if (err)
2709 return err;
2710
2711 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2712 params.uapsd_queues =
2713 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2714 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2715 return -EINVAL;
c75786c9
EP		 2716
2717 if (tb[NL80211_STA_WME_MAX_SP])
2718 params.max_sp =
2719 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2720
2721 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2722 return -EINVAL;
3b9ce80c
JB		 2723
2724 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
c75786c9
EP		 2725 }
2726
0e956c13 2727 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2728 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2729 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
07ba55d7
AN		 2730 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2731 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2732 return -EINVAL;
2733
2734 /*
2735 * Only managed stations can add TDLS peers, and only when the
2736 * wiphy supports external TDLS setup.
2737 */
2738 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2739 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2740 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2741 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
4c476991 2742 return -EINVAL;
0e956c13 2743
80b99899
JB		 2744 params.vlan = get_vlan(info, rdev);
2745 if (IS_ERR(params.vlan))
2746 return PTR_ERR(params.vlan);
a97f4424
JB		 2747
2748 /* validate settings */
2749 err = 0;
2750
79c97e97 2751 if (!rdev->ops->add_station) {
5727ef1b
JB		 2752 err = -EOPNOTSUPP;
2753 goto out;
2754 }
2755
79c97e97 2756 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2757
2758 out:
2759 if (params.vlan)
2760 dev_put(params.vlan);
5727ef1b
JB		 2761 return err;
2762}
2763
2764static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2765{
4c476991
JB		 2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2767 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2768 u8 *mac_addr = NULL;
2769
2770 if (info->attrs[NL80211_ATTR_MAC])
2771 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2772
e80cf853 2773 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2774 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2775 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2776 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2777 return -EINVAL;
5727ef1b 2778
4c476991
JB		 2779 if (!rdev->ops->del_station)
2780 return -EOPNOTSUPP;
3b85875a 2781
4c476991 2782 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2783}
2784
2ec600d6
LCC		 2785static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2786 int flags, struct net_device *dev,
2787 u8 *dst, u8 *next_hop,
2788 struct mpath_info *pinfo)
2789{
2790 void *hdr;
2791 struct nlattr *pinfoattr;
2792
2793 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2794 if (!hdr)
2795 return -1;
2796
2797 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2798 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2799 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2800
f5ea9120
JB		 2801 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2802
2ec600d6
LCC		 2803 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2804 if (!pinfoattr)
2805 goto nla_put_failure;
2806 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2807 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2808 pinfo->frame_qlen);
d19b3bf6
RP		 2809 if (pinfo->filled & MPATH_INFO_SN)
2810 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2811 pinfo->sn);
2ec600d6
LCC		 2812 if (pinfo->filled & MPATH_INFO_METRIC)
2813 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2814 pinfo->metric);
2815 if (pinfo->filled & MPATH_INFO_EXPTIME)
2816 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2817 pinfo->exptime);
2818 if (pinfo->filled & MPATH_INFO_FLAGS)
2819 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2820 pinfo->flags);
2821 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2822 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2823 pinfo->discovery_timeout);
2824 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2825 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2826 pinfo->discovery_retries);
2827
2828 nla_nest_end(msg, pinfoattr);
2829
2830 return genlmsg_end(msg, hdr);
2831
2832 nla_put_failure:
bc3ed28c
TG		 2833 genlmsg_cancel(msg, hdr);
2834 return -EMSGSIZE;
2ec600d6
LCC		 2835}
2836
2837static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2838 struct netlink_callback *cb)
2ec600d6 2839{
2ec600d6
LCC		 2840 struct mpath_info pinfo;
2841 struct cfg80211_registered_device *dev;
bba95fef 2842 struct net_device *netdev;
2ec600d6
LCC		 2843 u8 dst[ETH_ALEN];
2844 u8 next_hop[ETH_ALEN];
bba95fef 2845 int path_idx = cb->args[1];
2ec600d6 2846 int err;
2ec600d6 2847
67748893
JB		 2848 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2849 if (err)
2850 return err;
bba95fef
JB		 2851
2852 if (!dev->ops->dump_mpath) {
eec60b03 2853 err = -EOPNOTSUPP;
bba95fef
JB		 2854 goto out_err;
2855 }
2856
eec60b03
JM		 2857 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2858 err = -EOPNOTSUPP;
0448b5fc 2859 goto out_err;
eec60b03
JM		 2860 }
2861
bba95fef
JB		 2862 while (1) {
2863 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2864 dst, next_hop, &pinfo);
2865 if (err == -ENOENT)
2ec600d6 2866 break;
bba95fef 2867 if (err)
3b85875a 2868 goto out_err;
2ec600d6 2869
bba95fef
JB		 2870 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2871 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2872 netdev, dst, next_hop,
2873 &pinfo) < 0)
2874 goto out;
2ec600d6 2875
bba95fef 2876 path_idx++;
2ec600d6 2877 }
2ec600d6 2878
2ec600d6 2879
bba95fef
JB		 2880 out:
2881 cb->args[1] = path_idx;
2882 err = skb->len;
bba95fef 2883 out_err:
67748893 2884 nl80211_finish_netdev_dump(dev);
bba95fef 2885 return err;
2ec600d6
LCC		 2886}
2887
2888static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2889{
4c476991 2890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2891 int err;
4c476991 2892 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2893 struct mpath_info pinfo;
2894 struct sk_buff *msg;
2895 u8 *dst = NULL;
2896 u8 next_hop[ETH_ALEN];
2897
2898 memset(&pinfo, 0, sizeof(pinfo));
2899
2900 if (!info->attrs[NL80211_ATTR_MAC])
2901 return -EINVAL;
2902
2903 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2904
4c476991
JB		 2905 if (!rdev->ops->get_mpath)
2906 return -EOPNOTSUPP;
2ec600d6 2907
4c476991
JB		 2908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2909 return -EOPNOTSUPP;
eec60b03 2910
79c97e97 2911 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2912 if (err)
4c476991 2913 return err;
2ec600d6 2914
fd2120ca 2915 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2916 if (!msg)
4c476991 2917 return -ENOMEM;
2ec600d6
LCC		 2918
2919 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2920 dev, dst, next_hop, &pinfo) < 0) {
2921 nlmsg_free(msg);
2922 return -ENOBUFS;
2923 }
3b85875a 2924
4c476991 2925 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2926}
2927
2928static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2929{
4c476991
JB		 2930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2931 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2932 u8 *dst = NULL;
2933 u8 *next_hop = NULL;
2934
2935 if (!info->attrs[NL80211_ATTR_MAC])
2936 return -EINVAL;
2937
2938 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2939 return -EINVAL;
2940
2941 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2942 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2943
4c476991
JB		 2944 if (!rdev->ops->change_mpath)
2945 return -EOPNOTSUPP;
35a8efe1 2946
4c476991
JB		 2947 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2948 return -EOPNOTSUPP;
2ec600d6 2949
4c476991 2950 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2951}
4c476991 2952
2ec600d6
LCC		 2953static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2954{
4c476991
JB		 2955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2956 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2957 u8 *dst = NULL;
2958 u8 *next_hop = NULL;
2959
2960 if (!info->attrs[NL80211_ATTR_MAC])
2961 return -EINVAL;
2962
2963 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2964 return -EINVAL;
2965
2966 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2967 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2968
4c476991
JB		 2969 if (!rdev->ops->add_mpath)
2970 return -EOPNOTSUPP;
35a8efe1 2971
4c476991
JB		 2972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2973 return -EOPNOTSUPP;
2ec600d6 2974
4c476991 2975 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2976}
2977
2978static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2979{
4c476991
JB		 2980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2981 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2982 u8 *dst = NULL;
2983
2984 if (info->attrs[NL80211_ATTR_MAC])
2985 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2986
4c476991
JB		 2987 if (!rdev->ops->del_mpath)
2988 return -EOPNOTSUPP;
3b85875a 2989
4c476991 2990 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2991}
2992
9f1ba906
JM		 2993static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2994{
4c476991
JB		 2995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2996 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2997 struct bss_parameters params;
2998
2999 memset(&params, 0, sizeof(params));
3000 /* default to not changing parameters */
3001 params.use_cts_prot = -1;
3002 params.use_short_preamble = -1;
3003 params.use_short_slot_time = -1;
fd8aaaf3 3004 params.ap_isolate = -1;
50b12f59 3005 params.ht_opmode = -1;
9f1ba906
JM		 3006
3007 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3008 params.use_cts_prot =
3009 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3010 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3011 params.use_short_preamble =
3012 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3013 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3014 params.use_short_slot_time =
3015 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3016 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3017 params.basic_rates =
3018 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3019 params.basic_rates_len =
3020 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3021 }
fd8aaaf3
FF		 3022 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3023 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3024 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3025 params.ht_opmode =
3026 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3027
4c476991
JB		 3028 if (!rdev->ops->change_bss)
3029 return -EOPNOTSUPP;
9f1ba906 3030
074ac8df 3031 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3032 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3033 return -EOPNOTSUPP;
3b85875a 3034
4c476991 3035 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3036}
3037
b54452b0 3038static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3039 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3040 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3041 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3042 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3043 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3044 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3045};
3046
3047static int parse_reg_rule(struct nlattr *tb[],
3048 struct ieee80211_reg_rule *reg_rule)
3049{
3050 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3051 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3052
3053 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3054 return -EINVAL;
3055 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3056 return -EINVAL;
3057 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3058 return -EINVAL;
3059 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3060 return -EINVAL;
3061 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3062 return -EINVAL;
3063
3064 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3065
3066 freq_range->start_freq_khz =
3067 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3068 freq_range->end_freq_khz =
3069 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3070 freq_range->max_bandwidth_khz =
3071 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3072
3073 power_rule->max_eirp =
3074 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3075
3076 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3077 power_rule->max_antenna_gain =
3078 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3079
3080 return 0;
3081}
3082
3083static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3084{
3085 int r;
3086 char *data = NULL;
3087
80778f18
LR		 3088 /*
3089 * You should only get this when cfg80211 hasn't yet initialized
3090 * completely when built-in to the kernel right between the time
3091 * window between nl80211_init() and regulatory_init(), if that is
3092 * even possible.
3093 */
3094 mutex_lock(&cfg80211_mutex);
3095 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3096 mutex_unlock(&cfg80211_mutex);
3097 return -EINPROGRESS;
80778f18 3098 }
fe33eb39 3099 mutex_unlock(&cfg80211_mutex);
80778f18 3100
fe33eb39
LR		 3101 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3102 return -EINVAL;
b2e1b302
LR		 3103
3104 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3105
fe33eb39
LR		 3106 r = regulatory_hint_user(data);
3107
b2e1b302
LR		 3108 return r;
3109}
3110
24bdd9f4 3111static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3112 struct genl_info *info)
93da9cc1 3113{
4c476991 3114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3115 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3116 struct wireless_dev *wdev = dev->ieee80211_ptr;
3117 struct mesh_config cur_params;
3118 int err = 0;
93da9cc1 3119 void *hdr;
3120 struct nlattr *pinfoattr;
3121 struct sk_buff *msg;
3122
29cbe68c
JB		 3123 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3124 return -EOPNOTSUPP;
3125
24bdd9f4 3126 if (!rdev->ops->get_mesh_config)
4c476991 3127 return -EOPNOTSUPP;
f3f92586 3128
29cbe68c
JB		 3129 wdev_lock(wdev);
3130 /* If not connected, get default parameters */
3131 if (!wdev->mesh_id_len)
3132 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3133 else
24bdd9f4 3134 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3135 &cur_params);
3136 wdev_unlock(wdev);
3137
93da9cc1 3138 if (err)
4c476991 3139 return err;
93da9cc1 3140
3141 /* Draw up a netlink message to send back */
fd2120ca 3142 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3143 if (!msg)
3144 return -ENOMEM;
93da9cc1 3145 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3146 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3147 if (!hdr)
efe1cf0c 3148 goto out;
24bdd9f4 3149 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3150 if (!pinfoattr)
3151 goto nla_put_failure;
3152 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3153 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3154 cur_params.dot11MeshRetryTimeout);
3155 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3156 cur_params.dot11MeshConfirmTimeout);
3157 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3158 cur_params.dot11MeshHoldingTimeout);
3159 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3160 cur_params.dot11MeshMaxPeerLinks);
3161 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3162 cur_params.dot11MeshMaxRetries);
3163 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3164 cur_params.dot11MeshTTL);
45904f21
JC		 3165 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3166 cur_params.element_ttl);
93da9cc1 3167 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3168 cur_params.auto_open_plinks);
3169 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3170 cur_params.dot11MeshHWMPmaxPREQretries);
3171 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3172 cur_params.path_refresh_time);
3173 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3174 cur_params.min_discovery_timeout);
3175 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3176 cur_params.dot11MeshHWMPactivePathTimeout);
3177 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3178 cur_params.dot11MeshHWMPpreqMinInterval);
3179 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3180 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3181 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3182 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3183 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3184 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3185 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3186 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3187 nla_nest_end(msg, pinfoattr);
3188 genlmsg_end(msg, hdr);
4c476991 3189 return genlmsg_reply(msg, info);
93da9cc1 3190
3b85875a 3191 nla_put_failure:
93da9cc1 3192 genlmsg_cancel(msg, hdr);
efe1cf0c 3193 out:
d080e275 3194 nlmsg_free(msg);
4c476991 3195 return -ENOBUFS;
93da9cc1 3196}
3197
b54452b0 3198static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3199 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3200 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3201 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3202 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3203 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3204 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3205 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3206 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3207
3208 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3209 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3210 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3211 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3212 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3213 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3214 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3215 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3216 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3217};
3218
c80d545d
JC		 3219static const struct nla_policy
3220 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3221 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3222 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3223 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3224 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3225 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3226 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3227};
3228
24bdd9f4 3229static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3230 struct mesh_config *cfg,
3231 u32 *mask_out)
93da9cc1 3232{
93da9cc1 3233 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3234 u32 mask = 0;
93da9cc1 3235
bd90fdcc
JB		 3236#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3237do {\
3238 if (table[attr_num]) {\
3239 cfg->param = nla_fn(table[attr_num]); \
3240 mask |= (1 << (attr_num - 1)); \
3241 } \
3242} while (0);\
3243
3244
24bdd9f4 3245 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3246 return -EINVAL;
3247 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3248 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3249 nl80211_meshconf_params_policy))
93da9cc1 3250 return -EINVAL;
3251
93da9cc1 3252 /* This makes sure that there aren't more than 32 mesh config
3253 * parameters (otherwise our bitfield scheme would not work.) */
3254 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3255
3256 /* Fill in the params struct */
93da9cc1 3257 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3258 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3260 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3262 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3264 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3266 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3267 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3268 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3270 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3272 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3273 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3274 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3275 nla_get_u8);
3276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3277 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3279 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3280 nla_get_u16);
3281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3282 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3283 nla_get_u32);
3284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3285 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3286 nla_get_u16);
3287 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3288 dot11MeshHWMPnetDiameterTraversalTime,
3289 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3290 nla_get_u16);
63c5723b
RP		 3291 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3292 dot11MeshHWMPRootMode, mask,
3293 NL80211_MESHCONF_HWMP_ROOTMODE,
3294 nla_get_u8);
0507e159
JC		 3295 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3296 dot11MeshHWMPRannInterval, mask,
3297 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3298 nla_get_u16);
16dd7267
JC		 3299 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3300 dot11MeshGateAnnouncementProtocol, mask,
3301 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3302 nla_get_u8);
bd90fdcc
JB		 3303 if (mask_out)
3304 *mask_out = mask;
c80d545d 3305
bd90fdcc
JB		 3306 return 0;
3307
3308#undef FILL_IN_MESH_PARAM_IF_SET
3309}
3310
c80d545d
JC		 3311static int nl80211_parse_mesh_setup(struct genl_info *info,
3312 struct mesh_setup *setup)
3313{
3314 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3315
3316 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3317 return -EINVAL;
3318 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3319 info->attrs[NL80211_ATTR_MESH_SETUP],
3320 nl80211_mesh_setup_params_policy))
3321 return -EINVAL;
3322
3323 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3324 setup->path_sel_proto =
3325 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3326 IEEE80211_PATH_PROTOCOL_VENDOR :
3327 IEEE80211_PATH_PROTOCOL_HWMP;
3328
3329 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3330 setup->path_metric =
3331 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3332 IEEE80211_PATH_METRIC_VENDOR :
3333 IEEE80211_PATH_METRIC_AIRTIME;
3334
581a8b0f
JC		 3335
3336 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3337 struct nlattr *ieattr =
581a8b0f 3338 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3339 if (!is_valid_ie_attr(ieattr))
3340 return -EINVAL;
581a8b0f
JC		 3341 setup->ie = nla_data(ieattr);
3342 setup->ie_len = nla_len(ieattr);
c80d545d 3343 }
b130e5ce
JC		 3344 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3345 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3346
3347 return 0;
3348}
3349
24bdd9f4 3350static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3351 struct genl_info *info)
bd90fdcc
JB		 3352{
3353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3354 struct net_device *dev = info->user_ptr[1];
29cbe68c 3355 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3356 struct mesh_config cfg;
3357 u32 mask;
3358 int err;
3359
29cbe68c
JB		 3360 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3361 return -EOPNOTSUPP;
3362
24bdd9f4 3363 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3364 return -EOPNOTSUPP;
3365
24bdd9f4 3366 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3367 if (err)
3368 return err;
3369
29cbe68c
JB		 3370 wdev_lock(wdev);
3371 if (!wdev->mesh_id_len)
3372 err = -ENOLINK;
3373
3374 if (!err)
24bdd9f4 3375 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3376 mask, &cfg);
3377
3378 wdev_unlock(wdev);
3379
3380 return err;
93da9cc1 3381}
3382
f130347c
LR		 3383static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3384{
3385 struct sk_buff *msg;
3386 void *hdr = NULL;
3387 struct nlattr *nl_reg_rules;
3388 unsigned int i;
3389 int err = -EINVAL;
3390
a1794390 3391 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3392
3393 if (!cfg80211_regdomain)
3394 goto out;
3395
fd2120ca 3396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3397 if (!msg) {
3398 err = -ENOBUFS;
3399 goto out;
3400 }
3401
3402 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3403 NL80211_CMD_GET_REG);
3404 if (!hdr)
efe1cf0c 3405 goto put_failure;
f130347c
LR		 3406
3407 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3408 cfg80211_regdomain->alpha2);
8b60b078
LR		 3409 if (cfg80211_regdomain->dfs_region)
3410 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3411 cfg80211_regdomain->dfs_region);
f130347c
LR		 3412
3413 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3414 if (!nl_reg_rules)
3415 goto nla_put_failure;
3416
3417 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3418 struct nlattr *nl_reg_rule;
3419 const struct ieee80211_reg_rule *reg_rule;
3420 const struct ieee80211_freq_range *freq_range;
3421 const struct ieee80211_power_rule *power_rule;
3422
3423 reg_rule = &cfg80211_regdomain->reg_rules[i];
3424 freq_range = &reg_rule->freq_range;
3425 power_rule = &reg_rule->power_rule;
3426
3427 nl_reg_rule = nla_nest_start(msg, i);
3428 if (!nl_reg_rule)
3429 goto nla_put_failure;
3430
3431 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3432 reg_rule->flags);
3433 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3434 freq_range->start_freq_khz);
3435 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3436 freq_range->end_freq_khz);
3437 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3438 freq_range->max_bandwidth_khz);
3439 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3440 power_rule->max_antenna_gain);
3441 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3442 power_rule->max_eirp);
3443
3444 nla_nest_end(msg, nl_reg_rule);
3445 }
3446
3447 nla_nest_end(msg, nl_reg_rules);
3448
3449 genlmsg_end(msg, hdr);
134e6375 3450 err = genlmsg_reply(msg, info);
f130347c
LR		 3451 goto out;
3452
3453nla_put_failure:
3454 genlmsg_cancel(msg, hdr);
efe1cf0c 3455put_failure:
d080e275 3456 nlmsg_free(msg);
f130347c
LR		 3457 err = -EMSGSIZE;
3458out:
a1794390 3459 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3460 return err;
3461}
3462
b2e1b302
LR		 3463static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3464{
3465 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3466 struct nlattr *nl_reg_rule;
3467 char *alpha2 = NULL;
3468 int rem_reg_rules = 0, r = 0;
3469 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3470 u8 dfs_region = 0;
b2e1b302
LR		 3471 struct ieee80211_regdomain *rd = NULL;
3472
3473 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3474 return -EINVAL;
3475
3476 if (!info->attrs[NL80211_ATTR_REG_RULES])
3477 return -EINVAL;
3478
3479 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3480
8b60b078
LR		 3481 if (info->attrs[NL80211_ATTR_DFS_REGION])
3482 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3483
b2e1b302
LR		 3484 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3485 rem_reg_rules) {
3486 num_rules++;
3487 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3488 return -EINVAL;
b2e1b302
LR		 3489 }
3490
61405e97
LR		 3491 mutex_lock(&cfg80211_mutex);
3492
d0e18f83
LR		 3493 if (!reg_is_valid_request(alpha2)) {
3494 r = -EINVAL;
3495 goto bad_reg;
3496 }
b2e1b302
LR		 3497
3498 size_of_regd = sizeof(struct ieee80211_regdomain) +
3499 (num_rules * sizeof(struct ieee80211_reg_rule));
3500
3501 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3502 if (!rd) {
3503 r = -ENOMEM;
3504 goto bad_reg;
3505 }
b2e1b302
LR		 3506
3507 rd->n_reg_rules = num_rules;
3508 rd->alpha2[0] = alpha2[0];
3509 rd->alpha2[1] = alpha2[1];
3510
8b60b078
LR		 3511 /*
3512 * Disable DFS master mode if the DFS region was
3513 * not supported or known on this kernel.
3514 */
3515 if (reg_supported_dfs_region(dfs_region))
3516 rd->dfs_region = dfs_region;
3517
b2e1b302
LR		 3518 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3519 rem_reg_rules) {
3520 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3521 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3522 reg_rule_policy);
3523 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3524 if (r)
3525 goto bad_reg;
3526
3527 rule_idx++;
3528
d0e18f83
LR		 3529 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3530 r = -EINVAL;
b2e1b302 3531 goto bad_reg;
d0e18f83 3532 }
b2e1b302
LR		 3533 }
3534
3535 BUG_ON(rule_idx != num_rules);
3536
b2e1b302 3537 r = set_regdom(rd);
61405e97 3538
a1794390 3539 mutex_unlock(&cfg80211_mutex);
d0e18f83 3540
b2e1b302
LR		 3541 return r;
3542
d2372b31 3543 bad_reg:
61405e97 3544 mutex_unlock(&cfg80211_mutex);
b2e1b302 3545 kfree(rd);
d0e18f83 3546 return r;
b2e1b302
LR		 3547}
3548
83f5e2cf
JB		 3549static int validate_scan_freqs(struct nlattr *freqs)
3550{
3551 struct nlattr *attr1, *attr2;
3552 int n_channels = 0, tmp1, tmp2;
3553
3554 nla_for_each_nested(attr1, freqs, tmp1) {
3555 n_channels++;
3556 /*
3557 * Some hardware has a limited channel list for
3558 * scanning, and it is pretty much nonsensical
3559 * to scan for a channel twice, so disallow that
3560 * and don't require drivers to check that the
3561 * channel list they get isn't longer than what
3562 * they can scan, as long as they can scan all
3563 * the channels they registered at once.
3564 */
3565 nla_for_each_nested(attr2, freqs, tmp2)
3566 if (attr1 != attr2 &&
3567 nla_get_u32(attr1) == nla_get_u32(attr2))
3568 return 0;
3569 }
3570
3571 return n_channels;
3572}
3573
2a519311
JB		 3574static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3575{
4c476991
JB		 3576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3577 struct net_device *dev = info->user_ptr[1];
2a519311 3578 struct cfg80211_scan_request *request;
2a519311
JB		 3579 struct nlattr *attr;
3580 struct wiphy *wiphy;
83f5e2cf 3581 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3582 size_t ie_len;
2a519311 3583
f4a11bb0
JB		 3584 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3585 return -EINVAL;
3586
79c97e97 3587 wiphy = &rdev->wiphy;
2a519311 3588
4c476991
JB		 3589 if (!rdev->ops->scan)
3590 return -EOPNOTSUPP;
2a519311 3591
4c476991
JB		 3592 if (rdev->scan_req)
3593 return -EBUSY;
2a519311
JB		 3594
3595 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3596 n_channels = validate_scan_freqs(
3597 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3598 if (!n_channels)
3599 return -EINVAL;
2a519311 3600 } else {
34850ab2 3601 enum ieee80211_band band;
83f5e2cf
JB		 3602 n_channels = 0;
3603
2a519311
JB		 3604 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3605 if (wiphy->bands[band])
3606 n_channels += wiphy->bands[band]->n_channels;
3607 }
3608
3609 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3610 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3611 n_ssids++;
3612
4c476991
JB		 3613 if (n_ssids > wiphy->max_scan_ssids)
3614 return -EINVAL;
2a519311 3615
70692ad2
JM		 3616 if (info->attrs[NL80211_ATTR_IE])
3617 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3618 else
3619 ie_len = 0;
3620
4c476991
JB		 3621 if (ie_len > wiphy->max_scan_ie_len)
3622 return -EINVAL;
18a83659 3623
2a519311 3624 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3625 + sizeof(*request->ssids) * n_ssids
3626 + sizeof(*request->channels) * n_channels
70692ad2 3627 + ie_len, GFP_KERNEL);
4c476991
JB		 3628 if (!request)
3629 return -ENOMEM;
2a519311 3630
2a519311 3631 if (n_ssids)
5ba63533 3632 request->ssids = (void *)&request->channels[n_channels];
2a519311 3633 request->n_ssids = n_ssids;
70692ad2
JM		 3634 if (ie_len) {
3635 if (request->ssids)
3636 request->ie = (void *)(request->ssids + n_ssids);
3637 else
3638 request->ie = (void *)(request->channels + n_channels);
3639 }
2a519311 3640
584991dc 3641 i = 0;
2a519311
JB		 3642 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3643 /* user specified, bail out if channel not found */
2a519311 3644 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3645 struct ieee80211_channel *chan;
3646
3647 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3648
3649 if (!chan) {
2a519311
JB		 3650 err = -EINVAL;
3651 goto out_free;
3652 }
584991dc
JB		 3653
3654 /* ignore disabled channels */
3655 if (chan->flags & IEEE80211_CHAN_DISABLED)
3656 continue;
3657
3658 request->channels[i] = chan;
2a519311
JB		 3659 i++;
3660 }
3661 } else {
34850ab2
JB		 3662 enum ieee80211_band band;
3663
2a519311 3664 /* all channels */
2a519311
JB		 3665 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3666 int j;
3667 if (!wiphy->bands[band])
3668 continue;
3669 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3670 struct ieee80211_channel *chan;
3671
3672 chan = &wiphy->bands[band]->channels[j];
3673
3674 if (chan->flags & IEEE80211_CHAN_DISABLED)
3675 continue;
3676
3677 request->channels[i] = chan;
2a519311
JB		 3678 i++;
3679 }
3680 }
3681 }
3682
584991dc
JB		 3683 if (!i) {
3684 err = -EINVAL;
3685 goto out_free;
3686 }
3687
3688 request->n_channels = i;
3689
2a519311
JB		 3690 i = 0;
3691 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3692 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3693 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3694 err = -EINVAL;
3695 goto out_free;
3696 }
57a27e1d 3697 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3698 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3699 i++;
3700 }
3701 }
3702
70692ad2
JM		 3703 if (info->attrs[NL80211_ATTR_IE]) {
3704 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3705 memcpy((void *)request->ie,
3706 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3707 request->ie_len);
3708 }
3709
34850ab2 3710 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3711 if (wiphy->bands[i])
3712 request->rates[i] =
3713 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3714
3715 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3716 nla_for_each_nested(attr,
3717 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3718 tmp) {
3719 enum ieee80211_band band = nla_type(attr);
3720
84404623 3721 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3722 err = -EINVAL;
3723 goto out_free;
3724 }
3725 err = ieee80211_get_ratemask(wiphy->bands[band],
3726 nla_data(attr),
3727 nla_len(attr),
3728 &request->rates[band]);
3729 if (err)
3730 goto out_free;
3731 }
3732 }
3733
e9f935e3
RM		 3734 request->no_cck =
3735 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3736
463d0183 3737 request->dev = dev;
79c97e97 3738 request->wiphy = &rdev->wiphy;
2a519311 3739
79c97e97
JB		 3740 rdev->scan_req = request;
3741 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3742
463d0183 3743 if (!err) {
79c97e97 3744 nl80211_send_scan_start(rdev, dev);
463d0183 3745 dev_hold(dev);
4c476991 3746 } else {
2a519311 3747 out_free:
79c97e97 3748 rdev->scan_req = NULL;
2a519311
JB		 3749 kfree(request);
3750 }
3b85875a 3751
2a519311
JB		 3752 return err;
3753}
3754
807f8a8c
LC		 3755static int nl80211_start_sched_scan(struct sk_buff *skb,
3756 struct genl_info *info)
3757{
3758 struct cfg80211_sched_scan_request *request;
3759 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3760 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3761 struct nlattr *attr;
3762 struct wiphy *wiphy;
a1f1c21c 3763 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3764 u32 interval;
807f8a8c
LC		 3765 enum ieee80211_band band;
3766 size_t ie_len;
a1f1c21c 3767 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3768
3769 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3770 !rdev->ops->sched_scan_start)
3771 return -EOPNOTSUPP;
3772
3773 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3774 return -EINVAL;
3775
bbe6ad6d
LC		 3776 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3777 return -EINVAL;
3778
3779 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3780 if (interval == 0)
3781 return -EINVAL;
3782
807f8a8c
LC		 3783 wiphy = &rdev->wiphy;
3784
3785 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3786 n_channels = validate_scan_freqs(
3787 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3788 if (!n_channels)
3789 return -EINVAL;
3790 } else {
3791 n_channels = 0;
3792
3793 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3794 if (wiphy->bands[band])
3795 n_channels += wiphy->bands[band]->n_channels;
3796 }
3797
3798 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3799 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3800 tmp)
3801 n_ssids++;
3802
93b6aa69 3803 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3804 return -EINVAL;
3805
a1f1c21c
LC		 3806 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3807 nla_for_each_nested(attr,
3808 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3809 tmp)
3810 n_match_sets++;
3811
3812 if (n_match_sets > wiphy->max_match_sets)
3813 return -EINVAL;
3814
807f8a8c
LC		 3815 if (info->attrs[NL80211_ATTR_IE])
3816 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3817 else
3818 ie_len = 0;
3819
5a865bad 3820 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3821 return -EINVAL;
3822
c10841ca
LC		 3823 mutex_lock(&rdev->sched_scan_mtx);
3824
3825 if (rdev->sched_scan_req) {
3826 err = -EINPROGRESS;
3827 goto out;
3828 }
3829
807f8a8c 3830 request = kzalloc(sizeof(*request)
a2cd43c5 3831 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3832 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3833 + sizeof(*request->channels) * n_channels
807f8a8c 3834 + ie_len, GFP_KERNEL);
c10841ca
LC		 3835 if (!request) {
3836 err = -ENOMEM;
3837 goto out;
3838 }
807f8a8c
LC		 3839
3840 if (n_ssids)
3841 request->ssids = (void *)&request->channels[n_channels];
3842 request->n_ssids = n_ssids;
3843 if (ie_len) {
3844 if (request->ssids)
3845 request->ie = (void *)(request->ssids + n_ssids);
3846 else
3847 request->ie = (void *)(request->channels + n_channels);
3848 }
3849
a1f1c21c
LC		 3850 if (n_match_sets) {
3851 if (request->ie)
3852 request->match_sets = (void *)(request->ie + ie_len);
3853 else if (request->ssids)
3854 request->match_sets =
3855 (void *)(request->ssids + n_ssids);
3856 else
3857 request->match_sets =
3858 (void *)(request->channels + n_channels);
3859 }
3860 request->n_match_sets = n_match_sets;
3861
807f8a8c
LC		 3862 i = 0;
3863 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3864 /* user specified, bail out if channel not found */
3865 nla_for_each_nested(attr,
3866 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3867 tmp) {
3868 struct ieee80211_channel *chan;
3869
3870 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3871
3872 if (!chan) {
3873 err = -EINVAL;
3874 goto out_free;
3875 }
3876
3877 /* ignore disabled channels */
3878 if (chan->flags & IEEE80211_CHAN_DISABLED)
3879 continue;
3880
3881 request->channels[i] = chan;
3882 i++;
3883 }
3884 } else {
3885 /* all channels */
3886 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3887 int j;
3888 if (!wiphy->bands[band])
3889 continue;
3890 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3891 struct ieee80211_channel *chan;
3892
3893 chan = &wiphy->bands[band]->channels[j];
3894
3895 if (chan->flags & IEEE80211_CHAN_DISABLED)
3896 continue;
3897
3898 request->channels[i] = chan;
3899 i++;
3900 }
3901 }
3902 }
3903
3904 if (!i) {
3905 err = -EINVAL;
3906 goto out_free;
3907 }
3908
3909 request->n_channels = i;
3910
3911 i = 0;
3912 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3913 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3914 tmp) {
57a27e1d 3915 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3916 err = -EINVAL;
3917 goto out_free;
3918 }
57a27e1d 3919 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3920 memcpy(request->ssids[i].ssid, nla_data(attr),
3921 nla_len(attr));
807f8a8c
LC		 3922 i++;
3923 }
3924 }
3925
a1f1c21c
LC		 3926 i = 0;
3927 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3928 nla_for_each_nested(attr,
3929 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3930 tmp) {
3931 struct nlattr *ssid;
3932
3933 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3934 nla_data(attr), nla_len(attr),
3935 nl80211_match_policy);
3936 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3937 if (ssid) {
3938 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3939 err = -EINVAL;
3940 goto out_free;
3941 }
3942 memcpy(request->match_sets[i].ssid.ssid,
3943 nla_data(ssid), nla_len(ssid));
3944 request->match_sets[i].ssid.ssid_len =
3945 nla_len(ssid);
3946 }
3947 i++;
3948 }
3949 }
3950
807f8a8c
LC		 3951 if (info->attrs[NL80211_ATTR_IE]) {
3952 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3953 memcpy((void *)request->ie,
3954 nla_data(info->attrs[NL80211_ATTR_IE]),
3955 request->ie_len);
3956 }
3957
3958 request->dev = dev;
3959 request->wiphy = &rdev->wiphy;
bbe6ad6d 3960 request->interval = interval;
807f8a8c
LC		 3961
3962 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3963 if (!err) {
3964 rdev->sched_scan_req = request;
3965 nl80211_send_sched_scan(rdev, dev,
3966 NL80211_CMD_START_SCHED_SCAN);
3967 goto out;
3968 }
3969
3970out_free:
3971 kfree(request);
3972out:
c10841ca 3973 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3974 return err;
3975}
3976
3977static int nl80211_stop_sched_scan(struct sk_buff *skb,
3978 struct genl_info *info)
3979{
3980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3981 int err;
807f8a8c
LC		 3982
3983 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3984 !rdev->ops->sched_scan_stop)
3985 return -EOPNOTSUPP;
3986
c10841ca
LC		 3987 mutex_lock(&rdev->sched_scan_mtx);
3988 err = __cfg80211_stop_sched_scan(rdev, false);
3989 mutex_unlock(&rdev->sched_scan_mtx);
3990
3991 return err;
807f8a8c
LC		 3992}
3993
9720bb3a
JB		 3994static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3995 u32 seq, int flags,
2a519311 3996 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3997 struct wireless_dev *wdev,
3998 struct cfg80211_internal_bss *intbss)
2a519311 3999{
48ab905d 4000 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4001 void *hdr;
4002 struct nlattr *bss;
48ab905d
JB		 4003 int i;
4004
4005 ASSERT_WDEV_LOCK(wdev);
2a519311 4006
9720bb3a 4007 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4008 NL80211_CMD_NEW_SCAN_RESULTS);
4009 if (!hdr)
4010 return -1;
4011
9720bb3a
JB		 4012 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4013
f5ea9120 4014 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4015 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4016
4017 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4018 if (!bss)
4019 goto nla_put_failure;
4020 if (!is_zero_ether_addr(res->bssid))
4021 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4022 if (res->information_elements && res->len_information_elements)
4023 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4024 res->len_information_elements,
4025 res->information_elements);
34a6eddb
JM		 4026 if (res->beacon_ies && res->len_beacon_ies &&
4027 res->beacon_ies != res->information_elements)
4028 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4029 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4030 if (res->tsf)
4031 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4032 if (res->beacon_interval)
4033 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4034 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4035 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4036 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4037 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4038
77965c97 4039 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4040 case CFG80211_SIGNAL_TYPE_MBM:
4041 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4042 break;
4043 case CFG80211_SIGNAL_TYPE_UNSPEC:
4044 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4045 break;
4046 default:
4047 break;
4048 }
4049
48ab905d 4050 switch (wdev->iftype) {
074ac8df 4051 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4052 case NL80211_IFTYPE_STATION:
4053 if (intbss == wdev->current_bss)
4054 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4055 NL80211_BSS_STATUS_ASSOCIATED);
4056 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4057 if (intbss != wdev->auth_bsses[i])
4058 continue;
4059 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4060 NL80211_BSS_STATUS_AUTHENTICATED);
4061 break;
4062 }
4063 break;
4064 case NL80211_IFTYPE_ADHOC:
4065 if (intbss == wdev->current_bss)
4066 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4067 NL80211_BSS_STATUS_IBSS_JOINED);
4068 break;
4069 default:
4070 break;
4071 }
4072
2a519311
JB		 4073 nla_nest_end(msg, bss);
4074
4075 return genlmsg_end(msg, hdr);
4076
4077 nla_put_failure:
4078 genlmsg_cancel(msg, hdr);
4079 return -EMSGSIZE;
4080}
4081
4082static int nl80211_dump_scan(struct sk_buff *skb,
4083 struct netlink_callback *cb)
4084{
48ab905d
JB		 4085 struct cfg80211_registered_device *rdev;
4086 struct net_device *dev;
2a519311 4087 struct cfg80211_internal_bss *scan;
48ab905d 4088 struct wireless_dev *wdev;
2a519311
JB		 4089 int start = cb->args[1], idx = 0;
4090 int err;
4091
67748893
JB		 4092 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4093 if (err)
4094 return err;
2a519311 4095
48ab905d 4096 wdev = dev->ieee80211_ptr;
2a519311 4097
48ab905d
JB		 4098 wdev_lock(wdev);
4099 spin_lock_bh(&rdev->bss_lock);
4100 cfg80211_bss_expire(rdev);
4101
9720bb3a
JB		 4102 cb->seq = rdev->bss_generation;
4103
48ab905d 4104 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4105 if (++idx <= start)
4106 continue;
9720bb3a 4107 if (nl80211_send_bss(skb, cb,
2a519311 4108 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4109 rdev, wdev, scan) < 0) {
2a519311 4110 idx--;
67748893 4111 break;
2a519311
JB		 4112 }
4113 }
4114
48ab905d
JB		 4115 spin_unlock_bh(&rdev->bss_lock);
4116 wdev_unlock(wdev);
2a519311
JB		 4117
4118 cb->args[1] = idx;
67748893 4119 nl80211_finish_netdev_dump(rdev);
2a519311 4120
67748893 4121 return skb->len;
2a519311
JB		 4122}
4123
61fa713c
HS		 4124static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4125 int flags, struct net_device *dev,
4126 struct survey_info *survey)
4127{
4128 void *hdr;
4129 struct nlattr *infoattr;
4130
61fa713c
HS		 4131 hdr = nl80211hdr_put(msg, pid, seq, flags,
4132 NL80211_CMD_NEW_SURVEY_RESULTS);
4133 if (!hdr)
4134 return -ENOMEM;
4135
4136 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4137
4138 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4139 if (!infoattr)
4140 goto nla_put_failure;
4141
4142 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4143 survey->channel->center_freq);
4144 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4145 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4146 survey->noise);
17e5a808
FF		 4147 if (survey->filled & SURVEY_INFO_IN_USE)
4148 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4149 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4150 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4151 survey->channel_time);
4152 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4153 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4154 survey->channel_time_busy);
4155 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4156 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4157 survey->channel_time_ext_busy);
4158 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4159 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4160 survey->channel_time_rx);
4161 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4162 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4163 survey->channel_time_tx);
61fa713c
HS		 4164
4165 nla_nest_end(msg, infoattr);
4166
4167 return genlmsg_end(msg, hdr);
4168
4169 nla_put_failure:
4170 genlmsg_cancel(msg, hdr);
4171 return -EMSGSIZE;
4172}
4173
4174static int nl80211_dump_survey(struct sk_buff *skb,
4175 struct netlink_callback *cb)
4176{
4177 struct survey_info survey;
4178 struct cfg80211_registered_device *dev;
4179 struct net_device *netdev;
61fa713c
HS		 4180 int survey_idx = cb->args[1];
4181 int res;
4182
67748893
JB		 4183 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4184 if (res)
4185 return res;
61fa713c
HS		 4186
4187 if (!dev->ops->dump_survey) {
4188 res = -EOPNOTSUPP;
4189 goto out_err;
4190 }
4191
4192 while (1) {
180cdc79
LR		 4193 struct ieee80211_channel *chan;
4194
61fa713c
HS		 4195 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4196 &survey);
4197 if (res == -ENOENT)
4198 break;
4199 if (res)
4200 goto out_err;
4201
180cdc79
LR		 4202 /* Survey without a channel doesn't make sense */
4203 if (!survey.channel) {
4204 res = -EINVAL;
4205 goto out;
4206 }
4207
4208 chan = ieee80211_get_channel(&dev->wiphy,
4209 survey.channel->center_freq);
4210 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4211 survey_idx++;
4212 continue;
4213 }
4214
61fa713c
HS		 4215 if (nl80211_send_survey(skb,
4216 NETLINK_CB(cb->skb).pid,
4217 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4218 netdev,
4219 &survey) < 0)
4220 goto out;
4221 survey_idx++;
4222 }
4223
4224 out:
4225 cb->args[1] = survey_idx;
4226 res = skb->len;
4227 out_err:
67748893 4228 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4229 return res;
4230}
4231
255e737e
JM		 4232static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4233{
b23aa676
SO		 4234 return auth_type <= NL80211_AUTHTYPE_MAX;
4235}
4236
4237static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4238{
4239 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4240 NL80211_WPA_VERSION_2));
4241}
4242
636a5d36
JM		 4243static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4244{
4c476991
JB		 4245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4246 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4247 struct ieee80211_channel *chan;
4248 const u8 *bssid, *ssid, *ie = NULL;
4249 int err, ssid_len, ie_len = 0;
4250 enum nl80211_auth_type auth_type;
fffd0934 4251 struct key_parse key;
d5cdfacb 4252 bool local_state_change;
636a5d36 4253
f4a11bb0
JB		 4254 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4255 return -EINVAL;
4256
4257 if (!info->attrs[NL80211_ATTR_MAC])
4258 return -EINVAL;
4259
1778092e
JM		 4260 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4261 return -EINVAL;
4262
19957bb3
JB		 4263 if (!info->attrs[NL80211_ATTR_SSID])
4264 return -EINVAL;
4265
4266 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4267 return -EINVAL;
4268
fffd0934
JB		 4269 err = nl80211_parse_key(info, &key);
4270 if (err)
4271 return err;
4272
4273 if (key.idx >= 0) {
e31b8213
JB		 4274 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4275 return -EINVAL;
fffd0934
JB		 4276 if (!key.p.key || !key.p.key_len)
4277 return -EINVAL;
4278 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4279 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4280 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4281 key.p.key_len != WLAN_KEY_LEN_WEP104))
4282 return -EINVAL;
4283 if (key.idx > 4)
4284 return -EINVAL;
4285 } else {
4286 key.p.key_len = 0;
4287 key.p.key = NULL;
4288 }
4289
afea0b7a
JB		 4290 if (key.idx >= 0) {
4291 int i;
4292 bool ok = false;
4293 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4294 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4295 ok = true;
4296 break;
4297 }
4298 }
4c476991
JB		 4299 if (!ok)
4300 return -EINVAL;
afea0b7a
JB		 4301 }
4302
4c476991
JB		 4303 if (!rdev->ops->auth)
4304 return -EOPNOTSUPP;
636a5d36 4305
074ac8df 4306 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4307 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4308 return -EOPNOTSUPP;
eec60b03 4309
19957bb3 4310 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4311 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4312 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4313 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4314 return -EINVAL;
636a5d36 4315
19957bb3
JB		 4316 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4317 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4318
4319 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4320 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4321 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4322 }
4323
19957bb3 4324 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4325 if (!nl80211_valid_auth_type(auth_type))
4326 return -EINVAL;
636a5d36 4327
d5cdfacb
JM		 4328 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4329
4c476991
JB		 4330 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4331 ssid, ssid_len, ie, ie_len,
4332 key.p.key, key.p.key_len, key.idx,
4333 local_state_change);
636a5d36
JM		 4334}
4335
c0692b8f
JB		 4336static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4337 struct genl_info *info,
3dc27d25
JB		 4338 struct cfg80211_crypto_settings *settings,
4339 int cipher_limit)
b23aa676 4340{
c0b2bbd8
JB		 4341 memset(settings, 0, sizeof(*settings));
4342
b23aa676
SO		 4343 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4344
c0692b8f
JB		 4345 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4346 u16 proto;
4347 proto = nla_get_u16(
4348 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4349 settings->control_port_ethertype = cpu_to_be16(proto);
4350 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4351 proto != ETH_P_PAE)
4352 return -EINVAL;
4353 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4354 settings->control_port_no_encrypt = true;
4355 } else
4356 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4357
b23aa676
SO		 4358 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4359 void *data;
4360 int len, i;
4361
4362 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4363 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4364 settings->n_ciphers_pairwise = len / sizeof(u32);
4365
4366 if (len % sizeof(u32))
4367 return -EINVAL;
4368
3dc27d25 4369 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4370 return -EINVAL;
4371
4372 memcpy(settings->ciphers_pairwise, data, len);
4373
4374 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4375 if (!cfg80211_supported_cipher_suite(
4376 &rdev->wiphy,
b23aa676
SO		 4377 settings->ciphers_pairwise[i]))
4378 return -EINVAL;
4379 }
4380
4381 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4382 settings->cipher_group =
4383 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4384 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4385 settings->cipher_group))
b23aa676
SO		 4386 return -EINVAL;
4387 }
4388
4389 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4390 settings->wpa_versions =
4391 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4392 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4393 return -EINVAL;
4394 }
4395
4396 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4397 void *data;
6d30240e 4398 int len;
b23aa676
SO		 4399
4400 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4401 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4402 settings->n_akm_suites = len / sizeof(u32);
4403
4404 if (len % sizeof(u32))
4405 return -EINVAL;
4406
1b9ca027
JM		 4407 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4408 return -EINVAL;
4409
b23aa676 4410 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4411 }
4412
4413 return 0;
4414}
4415
636a5d36
JM		 4416static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4417{
4c476991
JB		 4418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4419 struct net_device *dev = info->user_ptr[1];
19957bb3 4420 struct cfg80211_crypto_settings crypto;
f444de05 4421 struct ieee80211_channel *chan;
3e5d7649 4422 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4423 int err, ssid_len, ie_len = 0;
4424 bool use_mfp = false;
7e7c8926
BG		 4425 u32 flags = 0;
4426 struct ieee80211_ht_cap *ht_capa = NULL;
4427 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4428
f4a11bb0
JB		 4429 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4430 return -EINVAL;
4431
4432 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4433 !info->attrs[NL80211_ATTR_SSID] ||
4434 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4435 return -EINVAL;
4436
4c476991
JB		 4437 if (!rdev->ops->assoc)
4438 return -EOPNOTSUPP;
636a5d36 4439
074ac8df 4440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4441 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4442 return -EOPNOTSUPP;
eec60b03 4443
19957bb3 4444 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4445
19957bb3
JB		 4446 chan = ieee80211_get_channel(&rdev->wiphy,
4447 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4448 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4449 return -EINVAL;
636a5d36 4450
19957bb3
JB		 4451 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4452 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4453
4454 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4455 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4456 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4457 }
4458
dc6382ce 4459 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4460 enum nl80211_mfp mfp =
dc6382ce 4461 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4462 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4463 use_mfp = true;
4c476991
JB		 4464 else if (mfp != NL80211_MFP_NO)
4465 return -EINVAL;
dc6382ce
JM		 4466 }
4467
3e5d7649
JB		 4468 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4469 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4470
7e7c8926
BG		 4471 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4472 flags |= ASSOC_REQ_DISABLE_HT;
4473
4474 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4475 ht_capa_mask =
4476 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4477
4478 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4479 if (!ht_capa_mask)
4480 return -EINVAL;
4481 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4482 }
4483
c0692b8f 4484 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4485 if (!err)
3e5d7649
JB		 4486 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4487 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4488 &crypto, flags, ht_capa,
4489 ht_capa_mask);
636a5d36 4490
636a5d36
JM		 4491 return err;
4492}
4493
4494static int nl80211_deauthenticate(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 const u8 *ie = NULL, *bssid;
4c476991 4499 int ie_len = 0;
19957bb3 4500 u16 reason_code;
d5cdfacb 4501 bool local_state_change;
636a5d36 4502
f4a11bb0
JB		 4503 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4504 return -EINVAL;
4505
4506 if (!info->attrs[NL80211_ATTR_MAC])
4507 return -EINVAL;
4508
4509 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4510 return -EINVAL;
4511
4c476991
JB		 4512 if (!rdev->ops->deauth)
4513 return -EOPNOTSUPP;
636a5d36 4514
074ac8df 4515 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4516 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4517 return -EOPNOTSUPP;
eec60b03 4518
19957bb3 4519 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4520
19957bb3
JB		 4521 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4522 if (reason_code == 0) {
f4a11bb0 4523 /* Reason Code 0 is reserved */
4c476991 4524 return -EINVAL;
255e737e 4525 }
636a5d36
JM		 4526
4527 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4528 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4529 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4530 }
4531
d5cdfacb
JM		 4532 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4533
4c476991
JB		 4534 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4535 local_state_change);
636a5d36
JM		 4536}
4537
4538static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4539{
4c476991
JB		 4540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4541 struct net_device *dev = info->user_ptr[1];
19957bb3 4542 const u8 *ie = NULL, *bssid;
4c476991 4543 int ie_len = 0;
19957bb3 4544 u16 reason_code;
d5cdfacb 4545 bool local_state_change;
636a5d36 4546
f4a11bb0
JB		 4547 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4548 return -EINVAL;
4549
4550 if (!info->attrs[NL80211_ATTR_MAC])
4551 return -EINVAL;
4552
4553 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4554 return -EINVAL;
4555
4c476991
JB		 4556 if (!rdev->ops->disassoc)
4557 return -EOPNOTSUPP;
636a5d36 4558
074ac8df 4559 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4560 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4561 return -EOPNOTSUPP;
eec60b03 4562
19957bb3 4563 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4564
19957bb3
JB		 4565 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4566 if (reason_code == 0) {
f4a11bb0 4567 /* Reason Code 0 is reserved */
4c476991 4568 return -EINVAL;
255e737e 4569 }
636a5d36
JM		 4570
4571 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4572 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4573 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4574 }
4575
d5cdfacb
JM		 4576 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4577
4c476991
JB		 4578 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4579 local_state_change);
636a5d36
JM		 4580}
4581
dd5b4cc7
FF		 4582static bool
4583nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4584 int mcast_rate[IEEE80211_NUM_BANDS],
4585 int rateval)
4586{
4587 struct wiphy *wiphy = &rdev->wiphy;
4588 bool found = false;
4589 int band, i;
4590
4591 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4592 struct ieee80211_supported_band *sband;
4593
4594 sband = wiphy->bands[band];
4595 if (!sband)
4596 continue;
4597
4598 for (i = 0; i < sband->n_bitrates; i++) {
4599 if (sband->bitrates[i].bitrate == rateval) {
4600 mcast_rate[band] = i + 1;
4601 found = true;
4602 break;
4603 }
4604 }
4605 }
4606
4607 return found;
4608}
4609
04a773ad
JB		 4610static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4611{
4c476991
JB		 4612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4613 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4614 struct cfg80211_ibss_params ibss;
4615 struct wiphy *wiphy;
fffd0934 4616 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4617 int err;
4618
8e30bc55
JB		 4619 memset(&ibss, 0, sizeof(ibss));
4620
04a773ad
JB		 4621 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4622 return -EINVAL;
4623
4624 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4625 !info->attrs[NL80211_ATTR_SSID] ||
4626 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4627 return -EINVAL;
4628
8e30bc55
JB		 4629 ibss.beacon_interval = 100;
4630
4631 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4632 ibss.beacon_interval =
4633 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4634 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4635 return -EINVAL;
4636 }
4637
4c476991
JB		 4638 if (!rdev->ops->join_ibss)
4639 return -EOPNOTSUPP;
04a773ad 4640
4c476991
JB		 4641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4642 return -EOPNOTSUPP;
04a773ad 4643
79c97e97 4644 wiphy = &rdev->wiphy;
04a773ad 4645
39193498 4646 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4647 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4648
4649 if (!is_valid_ether_addr(ibss.bssid))
4650 return -EINVAL;
4651 }
04a773ad
JB		 4652 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4653 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4654
4655 if (info->attrs[NL80211_ATTR_IE]) {
4656 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4657 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4658 }
4659
4660 ibss.channel = ieee80211_get_channel(wiphy,
4661 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4662 if (!ibss.channel ||
4663 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4664 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4665 return -EINVAL;
04a773ad
JB		 4666
4667 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4668 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4669
fbd2c8dc
TP		 4670 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4671 u8 *rates =
4672 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4673 int n_rates =
4674 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4675 struct ieee80211_supported_band *sband =
4676 wiphy->bands[ibss.channel->band];
34850ab2 4677 int err;
fbd2c8dc 4678
34850ab2
JB		 4679 err = ieee80211_get_ratemask(sband, rates, n_rates,
4680 &ibss.basic_rates);
4681 if (err)
4682 return err;
fbd2c8dc 4683 }
dd5b4cc7
FF		 4684
4685 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4686 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4687 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4688 return -EINVAL;
fbd2c8dc 4689
4c476991
JB		 4690 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4691 connkeys = nl80211_parse_connkeys(rdev,
4692 info->attrs[NL80211_ATTR_KEYS]);
4693 if (IS_ERR(connkeys))
4694 return PTR_ERR(connkeys);
4695 }
04a773ad 4696
4c476991 4697 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4698 if (err)
4699 kfree(connkeys);
04a773ad
JB		 4700 return err;
4701}
4702
4703static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4704{
4c476991
JB		 4705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4706 struct net_device *dev = info->user_ptr[1];
04a773ad 4707
4c476991
JB		 4708 if (!rdev->ops->leave_ibss)
4709 return -EOPNOTSUPP;
04a773ad 4710
4c476991
JB		 4711 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4712 return -EOPNOTSUPP;
04a773ad 4713
4c476991 4714 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4715}
4716
aff89a9b
JB		 4717#ifdef CONFIG_NL80211_TESTMODE
4718static struct genl_multicast_group nl80211_testmode_mcgrp = {
4719 .name = "testmode",
4720};
4721
4722static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4723{
4c476991 4724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4725 int err;
4726
4727 if (!info->attrs[NL80211_ATTR_TESTDATA])
4728 return -EINVAL;
4729
aff89a9b
JB		 4730 err = -EOPNOTSUPP;
4731 if (rdev->ops->testmode_cmd) {
4732 rdev->testmode_info = info;
4733 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4734 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4735 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4736 rdev->testmode_info = NULL;
4737 }
4738
aff89a9b
JB		 4739 return err;
4740}
4741
71063f0e
WYG		 4742static int nl80211_testmode_dump(struct sk_buff *skb,
4743 struct netlink_callback *cb)
4744{
4745 struct cfg80211_registered_device *dev;
4746 int err;
4747 long phy_idx;
4748 void *data = NULL;
4749 int data_len = 0;
4750
4751 if (cb->args[0]) {
4752 /*
4753 * 0 is a valid index, but not valid for args[0],
4754 * so we need to offset by 1.
4755 */
4756 phy_idx = cb->args[0] - 1;
4757 } else {
4758 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4759 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4760 nl80211_policy);
4761 if (err)
4762 return err;
4763 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4764 return -EINVAL;
4765 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4766 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4767 cb->args[1] =
4768 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4769 }
4770
4771 if (cb->args[1]) {
4772 data = nla_data((void *)cb->args[1]);
4773 data_len = nla_len((void *)cb->args[1]);
4774 }
4775
4776 mutex_lock(&cfg80211_mutex);
4777 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4778 if (!dev) {
4779 mutex_unlock(&cfg80211_mutex);
4780 return -ENOENT;
4781 }
4782 cfg80211_lock_rdev(dev);
4783 mutex_unlock(&cfg80211_mutex);
4784
4785 if (!dev->ops->testmode_dump) {
4786 err = -EOPNOTSUPP;
4787 goto out_err;
4788 }
4789
4790 while (1) {
4791 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4792 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4793 NL80211_CMD_TESTMODE);
4794 struct nlattr *tmdata;
4795
4796 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4797 genlmsg_cancel(skb, hdr);
4798 break;
4799 }
4800
4801 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4802 if (!tmdata) {
4803 genlmsg_cancel(skb, hdr);
4804 break;
4805 }
4806 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4807 data, data_len);
4808 nla_nest_end(skb, tmdata);
4809
4810 if (err == -ENOBUFS || err == -ENOENT) {
4811 genlmsg_cancel(skb, hdr);
4812 break;
4813 } else if (err) {
4814 genlmsg_cancel(skb, hdr);
4815 goto out_err;
4816 }
4817
4818 genlmsg_end(skb, hdr);
4819 }
4820
4821 err = skb->len;
4822 /* see above */
4823 cb->args[0] = phy_idx + 1;
4824 out_err:
4825 cfg80211_unlock_rdev(dev);
4826 return err;
4827}
4828
aff89a9b
JB		 4829static struct sk_buff *
4830__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4831 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4832{
4833 struct sk_buff *skb;
4834 void *hdr;
4835 struct nlattr *data;
4836
4837 skb = nlmsg_new(approxlen + 100, gfp);
4838 if (!skb)
4839 return NULL;
4840
4841 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4842 if (!hdr) {
4843 kfree_skb(skb);
4844 return NULL;
4845 }
4846
4847 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4848 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4849
4850 ((void **)skb->cb)[0] = rdev;
4851 ((void **)skb->cb)[1] = hdr;
4852 ((void **)skb->cb)[2] = data;
4853
4854 return skb;
4855
4856 nla_put_failure:
4857 kfree_skb(skb);
4858 return NULL;
4859}
4860
4861struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4862 int approxlen)
4863{
4864 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4865
4866 if (WARN_ON(!rdev->testmode_info))
4867 return NULL;
4868
4869 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4870 rdev->testmode_info->snd_pid,
4871 rdev->testmode_info->snd_seq,
4872 GFP_KERNEL);
4873}
4874EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4875
4876int cfg80211_testmode_reply(struct sk_buff *skb)
4877{
4878 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4879 void *hdr = ((void **)skb->cb)[1];
4880 struct nlattr *data = ((void **)skb->cb)[2];
4881
4882 if (WARN_ON(!rdev->testmode_info)) {
4883 kfree_skb(skb);
4884 return -EINVAL;
4885 }
4886
4887 nla_nest_end(skb, data);
4888 genlmsg_end(skb, hdr);
4889 return genlmsg_reply(skb, rdev->testmode_info);
4890}
4891EXPORT_SYMBOL(cfg80211_testmode_reply);
4892
4893struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4894 int approxlen, gfp_t gfp)
4895{
4896 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4897
4898 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4899}
4900EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4901
4902void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4903{
4904 void *hdr = ((void **)skb->cb)[1];
4905 struct nlattr *data = ((void **)skb->cb)[2];
4906
4907 nla_nest_end(skb, data);
4908 genlmsg_end(skb, hdr);
4909 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4910}
4911EXPORT_SYMBOL(cfg80211_testmode_event);
4912#endif
4913
b23aa676
SO		 4914static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4915{
4c476991
JB		 4916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4917 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4918 struct cfg80211_connect_params connect;
4919 struct wiphy *wiphy;
fffd0934 4920 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4921 int err;
4922
4923 memset(&connect, 0, sizeof(connect));
4924
4925 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4926 return -EINVAL;
4927
4928 if (!info->attrs[NL80211_ATTR_SSID] ||
4929 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4930 return -EINVAL;
4931
4932 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4933 connect.auth_type =
4934 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4935 if (!nl80211_valid_auth_type(connect.auth_type))
4936 return -EINVAL;
4937 } else
4938 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4939
4940 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4941
c0692b8f 4942 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4943 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4944 if (err)
4945 return err;
b23aa676 4946
074ac8df 4947 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4948 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4949 return -EOPNOTSUPP;
b23aa676 4950
79c97e97 4951 wiphy = &rdev->wiphy;
b23aa676 4952
b23aa676
SO		 4953 if (info->attrs[NL80211_ATTR_MAC])
4954 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4955 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4956 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4957
4958 if (info->attrs[NL80211_ATTR_IE]) {
4959 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4960 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4961 }
4962
4963 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4964 connect.channel =
4965 ieee80211_get_channel(wiphy,
4966 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4967 if (!connect.channel ||
4c476991
JB		 4968 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4969 return -EINVAL;
b23aa676
SO		 4970 }
4971
fffd0934
JB		 4972 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4973 connkeys = nl80211_parse_connkeys(rdev,
4974 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4975 if (IS_ERR(connkeys))
4976 return PTR_ERR(connkeys);
fffd0934
JB		 4977 }
4978
7e7c8926
BG		 4979 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4980 connect.flags |= ASSOC_REQ_DISABLE_HT;
4981
4982 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4983 memcpy(&connect.ht_capa_mask,
4984 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
4985 sizeof(connect.ht_capa_mask));
4986
4987 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4988 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4989 return -EINVAL;
4990 memcpy(&connect.ht_capa,
4991 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
4992 sizeof(connect.ht_capa));
4993 }
4994
fffd0934 4995 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4996 if (err)
4997 kfree(connkeys);
b23aa676
SO		 4998 return err;
4999}
5000
5001static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5002{
4c476991
JB		 5003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5004 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5005 u16 reason;
5006
5007 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5008 reason = WLAN_REASON_DEAUTH_LEAVING;
5009 else
5010 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5011
5012 if (reason == 0)
5013 return -EINVAL;
5014
074ac8df 5015 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5016 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5017 return -EOPNOTSUPP;
b23aa676 5018
4c476991 5019 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5020}
5021
463d0183
JB		 5022static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5023{
4c476991 5024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5025 struct net *net;
5026 int err;
5027 u32 pid;
5028
5029 if (!info->attrs[NL80211_ATTR_PID])
5030 return -EINVAL;
5031
5032 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5033
463d0183 5034 net = get_net_ns_by_pid(pid);
4c476991
JB		 5035 if (IS_ERR(net))
5036 return PTR_ERR(net);
463d0183
JB		 5037
5038 err = 0;
5039
5040 /* check if anything to do */
4c476991
JB		 5041 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5042 err = cfg80211_switch_netns(rdev, net);
463d0183 5043
463d0183 5044 put_net(net);
463d0183
JB		 5045 return err;
5046}
5047
67fbb16b
SO		 5048static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5049{
4c476991 5050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5051 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5052 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5053 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5054 struct cfg80211_pmksa pmksa;
5055
5056 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5057
5058 if (!info->attrs[NL80211_ATTR_MAC])
5059 return -EINVAL;
5060
5061 if (!info->attrs[NL80211_ATTR_PMKID])
5062 return -EINVAL;
5063
67fbb16b
SO		 5064 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5065 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5066
074ac8df 5067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5068 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5069 return -EOPNOTSUPP;
67fbb16b
SO		 5070
5071 switch (info->genlhdr->cmd) {
5072 case NL80211_CMD_SET_PMKSA:
5073 rdev_ops = rdev->ops->set_pmksa;
5074 break;
5075 case NL80211_CMD_DEL_PMKSA:
5076 rdev_ops = rdev->ops->del_pmksa;
5077 break;
5078 default:
5079 WARN_ON(1);
5080 break;
5081 }
5082
4c476991
JB		 5083 if (!rdev_ops)
5084 return -EOPNOTSUPP;
67fbb16b 5085
4c476991 5086 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5087}
5088
5089static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5090{
4c476991
JB		 5091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5092 struct net_device *dev = info->user_ptr[1];
67fbb16b 5093
074ac8df 5094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5095 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5096 return -EOPNOTSUPP;
67fbb16b 5097
4c476991
JB		 5098 if (!rdev->ops->flush_pmksa)
5099 return -EOPNOTSUPP;
67fbb16b 5100
4c476991 5101 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5102}
5103
109086ce
AN		 5104static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5105{
5106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5107 struct net_device *dev = info->user_ptr[1];
5108 u8 action_code, dialog_token;
5109 u16 status_code;
5110 u8 *peer;
5111
5112 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5113 !rdev->ops->tdls_mgmt)
5114 return -EOPNOTSUPP;
5115
5116 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5117 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5118 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5119 !info->attrs[NL80211_ATTR_IE] ||
5120 !info->attrs[NL80211_ATTR_MAC])
5121 return -EINVAL;
5122
5123 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5124 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5125 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5126 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5127
5128 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5129 dialog_token, status_code,
5130 nla_data(info->attrs[NL80211_ATTR_IE]),
5131 nla_len(info->attrs[NL80211_ATTR_IE]));
5132}
5133
5134static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5135{
5136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5137 struct net_device *dev = info->user_ptr[1];
5138 enum nl80211_tdls_operation operation;
5139 u8 *peer;
5140
5141 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5142 !rdev->ops->tdls_oper)
5143 return -EOPNOTSUPP;
5144
5145 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5146 !info->attrs[NL80211_ATTR_MAC])
5147 return -EINVAL;
5148
5149 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5150 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5151
5152 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5153}
5154
9588bbd5
JM		 5155static int nl80211_remain_on_channel(struct sk_buff *skb,
5156 struct genl_info *info)
5157{
4c476991
JB		 5158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5159 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5160 struct ieee80211_channel *chan;
5161 struct sk_buff *msg;
5162 void *hdr;
5163 u64 cookie;
5164 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5165 u32 freq, duration;
5166 int err;
5167
5168 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5169 !info->attrs[NL80211_ATTR_DURATION])
5170 return -EINVAL;
5171
5172 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5173
5174 /*
5175 * We should be on that channel for at least one jiffie,
5176 * and more than 5 seconds seems excessive.
5177 */
a293911d
JB		 5178 if (!duration || !msecs_to_jiffies(duration) ||
5179 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5180 return -EINVAL;
5181
7c4ef712
JB		 5182 if (!rdev->ops->remain_on_channel ||
5183 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5184 return -EOPNOTSUPP;
9588bbd5 5185
9588bbd5
JM		 5186 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5187 channel_type = nla_get_u32(
5188 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5189 if (channel_type != NL80211_CHAN_NO_HT &&
5190 channel_type != NL80211_CHAN_HT20 &&
5191 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5192 channel_type != NL80211_CHAN_HT40MINUS)
5193 return -EINVAL;
9588bbd5
JM		 5194 }
5195
5196 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5197 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5198 if (chan == NULL)
5199 return -EINVAL;
9588bbd5
JM		 5200
5201 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5202 if (!msg)
5203 return -ENOMEM;
9588bbd5
JM		 5204
5205 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5206 NL80211_CMD_REMAIN_ON_CHANNEL);
5207
5208 if (IS_ERR(hdr)) {
5209 err = PTR_ERR(hdr);
5210 goto free_msg;
5211 }
5212
5213 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5214 channel_type, duration, &cookie);
5215
5216 if (err)
5217 goto free_msg;
5218
5219 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5220
5221 genlmsg_end(msg, hdr);
4c476991
JB		 5222
5223 return genlmsg_reply(msg, info);
9588bbd5
JM		 5224
5225 nla_put_failure:
5226 err = -ENOBUFS;
5227 free_msg:
5228 nlmsg_free(msg);
9588bbd5
JM		 5229 return err;
5230}
5231
5232static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5233 struct genl_info *info)
5234{
4c476991
JB		 5235 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5236 struct net_device *dev = info->user_ptr[1];
9588bbd5 5237 u64 cookie;
9588bbd5
JM		 5238
5239 if (!info->attrs[NL80211_ATTR_COOKIE])
5240 return -EINVAL;
5241
4c476991
JB		 5242 if (!rdev->ops->cancel_remain_on_channel)
5243 return -EOPNOTSUPP;
9588bbd5 5244
9588bbd5
JM		 5245 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5246
4c476991 5247 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5248}
5249
13ae75b1
JM		 5250static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5251 u8 *rates, u8 rates_len)
5252{
5253 u8 i;
5254 u32 mask = 0;
5255
5256 for (i = 0; i < rates_len; i++) {
5257 int rate = (rates[i] & 0x7f) * 5;
5258 int ridx;
5259 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5260 struct ieee80211_rate *srate =
5261 &sband->bitrates[ridx];
5262 if (rate == srate->bitrate) {
5263 mask |= 1 << ridx;
5264 break;
5265 }
5266 }
5267 if (ridx == sband->n_bitrates)
5268 return 0; /* rate not found */
5269 }
5270
5271 return mask;
5272}
5273
b54452b0 5274static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5275 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5276 .len = NL80211_MAX_SUPP_RATES },
5277};
5278
5279static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5280 struct genl_info *info)
5281{
5282 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5284 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5285 int rem, i;
5286 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5287 struct nlattr *tx_rates;
5288 struct ieee80211_supported_band *sband;
5289
5290 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5291 return -EINVAL;
5292
4c476991
JB		 5293 if (!rdev->ops->set_bitrate_mask)
5294 return -EOPNOTSUPP;
13ae75b1
JM		 5295
5296 memset(&mask, 0, sizeof(mask));
5297 /* Default to all rates enabled */
5298 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5299 sband = rdev->wiphy.bands[i];
5300 mask.control[i].legacy =
5301 sband ? (1 << sband->n_bitrates) - 1 : 0;
5302 }
5303
5304 /*
5305 * The nested attribute uses enum nl80211_band as the index. This maps
5306 * directly to the enum ieee80211_band values used in cfg80211.
5307 */
5308 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5309 {
5310 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5311 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5312 return -EINVAL;
13ae75b1 5313 sband = rdev->wiphy.bands[band];
4c476991
JB		 5314 if (sband == NULL)
5315 return -EINVAL;
13ae75b1
JM		 5316 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5317 nla_len(tx_rates), nl80211_txattr_policy);
5318 if (tb[NL80211_TXRATE_LEGACY]) {
5319 mask.control[band].legacy = rateset_to_mask(
5320 sband,
5321 nla_data(tb[NL80211_TXRATE_LEGACY]),
5322 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5323 if (mask.control[band].legacy == 0)
5324 return -EINVAL;
13ae75b1
JM		 5325 }
5326 }
5327
4c476991 5328 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5329}
5330
2e161f78 5331static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5332{
4c476991
JB		 5333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5334 struct net_device *dev = info->user_ptr[1];
2e161f78 5335 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5336
5337 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5338 return -EINVAL;
5339
2e161f78
JB		 5340 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5341 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5342
9d38d85d 5343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5345 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5346 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5347 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5348 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5349 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5350 return -EOPNOTSUPP;
026331c4
JM		 5351
5352 /* not much point in registering if we can't reply */
4c476991
JB		 5353 if (!rdev->ops->mgmt_tx)
5354 return -EOPNOTSUPP;
026331c4 5355
4c476991 5356 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5357 frame_type,
026331c4
JM		 5358 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5359 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5360}
5361
2e161f78 5362static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5363{
4c476991
JB		 5364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5365 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5366 struct ieee80211_channel *chan;
5367 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5368 bool channel_type_valid = false;
026331c4
JM		 5369 u32 freq;
5370 int err;
d64d373f 5371 void *hdr = NULL;
026331c4 5372 u64 cookie;
e247bd90 5373 struct sk_buff *msg = NULL;
f7ca38df 5374 unsigned int wait = 0;
e247bd90
JB		 5375 bool offchan, no_cck, dont_wait_for_ack;
5376
5377 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5378
5379 if (!info->attrs[NL80211_ATTR_FRAME] ||
5380 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5381 return -EINVAL;
5382
4c476991
JB		 5383 if (!rdev->ops->mgmt_tx)
5384 return -EOPNOTSUPP;
026331c4 5385
9d38d85d 5386 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5387 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5388 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5389 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5391 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5392 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5393 return -EOPNOTSUPP;
026331c4 5394
f7ca38df 5395 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5396 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5397 return -EINVAL;
5398 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5399 }
5400
026331c4
JM		 5401 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5402 channel_type = nla_get_u32(
5403 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5404 if (channel_type != NL80211_CHAN_NO_HT &&
5405 channel_type != NL80211_CHAN_HT20 &&
5406 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5407 channel_type != NL80211_CHAN_HT40MINUS)
5408 return -EINVAL;
252aa631 5409 channel_type_valid = true;
026331c4
JM		 5410 }
5411
f7ca38df
JB		 5412 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5413
7c4ef712
JB		 5414 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5415 return -EINVAL;
5416
e9f935e3
RM		 5417 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5418
026331c4
JM		 5419 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5420 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5421 if (chan == NULL)
5422 return -EINVAL;
026331c4 5423
e247bd90
JB		 5424 if (!dont_wait_for_ack) {
5425 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5426 if (!msg)
5427 return -ENOMEM;
026331c4 5428
e247bd90
JB		 5429 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5430 NL80211_CMD_FRAME);
026331c4 5431
e247bd90
JB		 5432 if (IS_ERR(hdr)) {
5433 err = PTR_ERR(hdr);
5434 goto free_msg;
5435 }
026331c4 5436 }
e247bd90 5437
f7ca38df
JB		 5438 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5439 channel_type_valid, wait,
2e161f78
JB		 5440 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5441 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5442 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5443 if (err)
5444 goto free_msg;
5445
e247bd90
JB		 5446 if (msg) {
5447 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5448
e247bd90
JB		 5449 genlmsg_end(msg, hdr);
5450 return genlmsg_reply(msg, info);
5451 }
5452
5453 return 0;
026331c4
JM		 5454
5455 nla_put_failure:
5456 err = -ENOBUFS;
5457 free_msg:
5458 nlmsg_free(msg);
026331c4
JM		 5459 return err;
5460}
5461
f7ca38df
JB		 5462static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5463{
5464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5465 struct net_device *dev = info->user_ptr[1];
5466 u64 cookie;
5467
5468 if (!info->attrs[NL80211_ATTR_COOKIE])
5469 return -EINVAL;
5470
5471 if (!rdev->ops->mgmt_tx_cancel_wait)
5472 return -EOPNOTSUPP;
5473
5474 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5475 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5476 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5477 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5478 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5479 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5480 return -EOPNOTSUPP;
5481
5482 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5483
5484 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5485}
5486
ffb9eb3d
KV		 5487static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5488{
4c476991 5489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5490 struct wireless_dev *wdev;
4c476991 5491 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5492 u8 ps_state;
5493 bool state;
5494 int err;
5495
4c476991
JB		 5496 if (!info->attrs[NL80211_ATTR_PS_STATE])
5497 return -EINVAL;
ffb9eb3d
KV		 5498
5499 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5500
4c476991
JB		 5501 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5502 return -EINVAL;
ffb9eb3d
KV		 5503
5504 wdev = dev->ieee80211_ptr;
5505
4c476991
JB		 5506 if (!rdev->ops->set_power_mgmt)
5507 return -EOPNOTSUPP;
ffb9eb3d
KV		 5508
5509 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5510
5511 if (state == wdev->ps)
4c476991 5512 return 0;
ffb9eb3d 5513
4c476991
JB		 5514 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5515 wdev->ps_timeout);
5516 if (!err)
5517 wdev->ps = state;
ffb9eb3d
KV		 5518 return err;
5519}
5520
5521static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5522{
4c476991 5523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5524 enum nl80211_ps_state ps_state;
5525 struct wireless_dev *wdev;
4c476991 5526 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5527 struct sk_buff *msg;
5528 void *hdr;
5529 int err;
5530
ffb9eb3d
KV		 5531 wdev = dev->ieee80211_ptr;
5532
4c476991
JB		 5533 if (!rdev->ops->set_power_mgmt)
5534 return -EOPNOTSUPP;
ffb9eb3d
KV		 5535
5536 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5537 if (!msg)
5538 return -ENOMEM;
ffb9eb3d
KV		 5539
5540 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5541 NL80211_CMD_GET_POWER_SAVE);
5542 if (!hdr) {
4c476991 5543 err = -ENOBUFS;
ffb9eb3d
KV		 5544 goto free_msg;
5545 }
5546
5547 if (wdev->ps)
5548 ps_state = NL80211_PS_ENABLED;
5549 else
5550 ps_state = NL80211_PS_DISABLED;
5551
5552 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5553
5554 genlmsg_end(msg, hdr);
4c476991 5555 return genlmsg_reply(msg, info);
ffb9eb3d 5556
4c476991 5557 nla_put_failure:
ffb9eb3d 5558 err = -ENOBUFS;
4c476991 5559 free_msg:
ffb9eb3d 5560 nlmsg_free(msg);
ffb9eb3d
KV		 5561 return err;
5562}
5563
d6dc1a38
JO		 5564static struct nla_policy
5565nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5566 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5567 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5568 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5569};
5570
5571static int nl80211_set_cqm_rssi(struct genl_info *info,
5572 s32 threshold, u32 hysteresis)
5573{
4c476991 5574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5575 struct wireless_dev *wdev;
4c476991 5576 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5577
5578 if (threshold > 0)
5579 return -EINVAL;
5580
d6dc1a38
JO		 5581 wdev = dev->ieee80211_ptr;
5582
4c476991
JB		 5583 if (!rdev->ops->set_cqm_rssi_config)
5584 return -EOPNOTSUPP;
d6dc1a38 5585
074ac8df 5586 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5587 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5588 return -EOPNOTSUPP;
d6dc1a38 5589
4c476991
JB		 5590 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5591 threshold, hysteresis);
d6dc1a38
JO		 5592}
5593
5594static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5595{
5596 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5597 struct nlattr *cqm;
5598 int err;
5599
5600 cqm = info->attrs[NL80211_ATTR_CQM];
5601 if (!cqm) {
5602 err = -EINVAL;
5603 goto out;
5604 }
5605
5606 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5607 nl80211_attr_cqm_policy);
5608 if (err)
5609 goto out;
5610
5611 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5612 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5613 s32 threshold;
5614 u32 hysteresis;
5615 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5616 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5617 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5618 } else
5619 err = -EINVAL;
5620
5621out:
5622 return err;
5623}
5624
29cbe68c
JB		 5625static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5626{
5627 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5628 struct net_device *dev = info->user_ptr[1];
5629 struct mesh_config cfg;
c80d545d 5630 struct mesh_setup setup;
29cbe68c
JB		 5631 int err;
5632
5633 /* start with default */
5634 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5635 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5636
24bdd9f4 5637 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5638 /* and parse parameters if given */
24bdd9f4 5639 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5640 if (err)
5641 return err;
5642 }
5643
5644 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5645 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5646 return -EINVAL;
5647
c80d545d
JC		 5648 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5649 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5650
5651 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5652 /* parse additional setup parameters if given */
5653 err = nl80211_parse_mesh_setup(info, &setup);
5654 if (err)
5655 return err;
5656 }
5657
5658 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5659}
5660
5661static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5662{
5663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5664 struct net_device *dev = info->user_ptr[1];
5665
5666 return cfg80211_leave_mesh(rdev, dev);
5667}
5668
ff1b6e69
JB		 5669static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5670{
5671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5672 struct sk_buff *msg;
5673 void *hdr;
5674
5675 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5676 return -EOPNOTSUPP;
5677
5678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5679 if (!msg)
5680 return -ENOMEM;
5681
5682 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5683 NL80211_CMD_GET_WOWLAN);
5684 if (!hdr)
5685 goto nla_put_failure;
5686
5687 if (rdev->wowlan) {
5688 struct nlattr *nl_wowlan;
5689
5690 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5691 if (!nl_wowlan)
5692 goto nla_put_failure;
5693
5694 if (rdev->wowlan->any)
5695 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5696 if (rdev->wowlan->disconnect)
5697 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5698 if (rdev->wowlan->magic_pkt)
5699 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5700 if (rdev->wowlan->gtk_rekey_failure)
5701 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5702 if (rdev->wowlan->eap_identity_req)
5703 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5704 if (rdev->wowlan->four_way_handshake)
5705 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5706 if (rdev->wowlan->rfkill_release)
5707 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5708 if (rdev->wowlan->n_patterns) {
5709 struct nlattr *nl_pats, *nl_pat;
5710 int i, pat_len;
5711
5712 nl_pats = nla_nest_start(msg,
5713 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5714 if (!nl_pats)
5715 goto nla_put_failure;
5716
5717 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5718 nl_pat = nla_nest_start(msg, i + 1);
5719 if (!nl_pat)
5720 goto nla_put_failure;
5721 pat_len = rdev->wowlan->patterns[i].pattern_len;
5722 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5723 DIV_ROUND_UP(pat_len, 8),
5724 rdev->wowlan->patterns[i].mask);
5725 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5726 pat_len,
5727 rdev->wowlan->patterns[i].pattern);
5728 nla_nest_end(msg, nl_pat);
5729 }
5730 nla_nest_end(msg, nl_pats);
5731 }
5732
5733 nla_nest_end(msg, nl_wowlan);
5734 }
5735
5736 genlmsg_end(msg, hdr);
5737 return genlmsg_reply(msg, info);
5738
5739nla_put_failure:
5740 nlmsg_free(msg);
5741 return -ENOBUFS;
5742}
5743
5744static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5745{
5746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5747 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5748 struct cfg80211_wowlan no_triggers = {};
5749 struct cfg80211_wowlan new_triggers = {};
5750 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5751 int err, i;
5752
5753 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5754 return -EOPNOTSUPP;
5755
5756 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5757 goto no_triggers;
5758
5759 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5760 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5761 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5762 nl80211_wowlan_policy);
5763 if (err)
5764 return err;
5765
5766 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5767 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5768 return -EINVAL;
5769 new_triggers.any = true;
5770 }
5771
5772 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5773 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5774 return -EINVAL;
5775 new_triggers.disconnect = true;
5776 }
5777
5778 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5779 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5780 return -EINVAL;
5781 new_triggers.magic_pkt = true;
5782 }
5783
77dbbb13
JB		 5784 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5785 return -EINVAL;
5786
5787 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5788 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5789 return -EINVAL;
5790 new_triggers.gtk_rekey_failure = true;
5791 }
5792
5793 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5794 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5795 return -EINVAL;
5796 new_triggers.eap_identity_req = true;
5797 }
5798
5799 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5800 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5801 return -EINVAL;
5802 new_triggers.four_way_handshake = true;
5803 }
5804
5805 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5806 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5807 return -EINVAL;
5808 new_triggers.rfkill_release = true;
5809 }
5810
ff1b6e69
JB		 5811 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5812 struct nlattr *pat;
5813 int n_patterns = 0;
5814 int rem, pat_len, mask_len;
5815 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5816
5817 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5818 rem)
5819 n_patterns++;
5820 if (n_patterns > wowlan->n_patterns)
5821 return -EINVAL;
5822
5823 new_triggers.patterns = kcalloc(n_patterns,
5824 sizeof(new_triggers.patterns[0]),
5825 GFP_KERNEL);
5826 if (!new_triggers.patterns)
5827 return -ENOMEM;
5828
5829 new_triggers.n_patterns = n_patterns;
5830 i = 0;
5831
5832 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5833 rem) {
5834 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5835 nla_data(pat), nla_len(pat), NULL);
5836 err = -EINVAL;
5837 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5838 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5839 goto error;
5840 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5841 mask_len = DIV_ROUND_UP(pat_len, 8);
5842 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5843 mask_len)
5844 goto error;
5845 if (pat_len > wowlan->pattern_max_len ||
5846 pat_len < wowlan->pattern_min_len)
5847 goto error;
5848
5849 new_triggers.patterns[i].mask =
5850 kmalloc(mask_len + pat_len, GFP_KERNEL);
5851 if (!new_triggers.patterns[i].mask) {
5852 err = -ENOMEM;
5853 goto error;
5854 }
5855 new_triggers.patterns[i].pattern =
5856 new_triggers.patterns[i].mask + mask_len;
5857 memcpy(new_triggers.patterns[i].mask,
5858 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5859 mask_len);
5860 new_triggers.patterns[i].pattern_len = pat_len;
5861 memcpy(new_triggers.patterns[i].pattern,
5862 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5863 pat_len);
5864 i++;
5865 }
5866 }
5867
5868 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5869 struct cfg80211_wowlan *ntrig;
5870 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5871 GFP_KERNEL);
5872 if (!ntrig) {
5873 err = -ENOMEM;
5874 goto error;
5875 }
5876 cfg80211_rdev_free_wowlan(rdev);
5877 rdev->wowlan = ntrig;
5878 } else {
5879 no_triggers:
5880 cfg80211_rdev_free_wowlan(rdev);
5881 rdev->wowlan = NULL;
5882 }
5883
5884 return 0;
5885 error:
5886 for (i = 0; i < new_triggers.n_patterns; i++)
5887 kfree(new_triggers.patterns[i].mask);
5888 kfree(new_triggers.patterns);
5889 return err;
5890}
5891
e5497d76
JB		 5892static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5893{
5894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5895 struct net_device *dev = info->user_ptr[1];
5896 struct wireless_dev *wdev = dev->ieee80211_ptr;
5897 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5898 struct cfg80211_gtk_rekey_data rekey_data;
5899 int err;
5900
5901 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5902 return -EINVAL;
5903
5904 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5905 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5906 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5907 nl80211_rekey_policy);
5908 if (err)
5909 return err;
5910
5911 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5912 return -ERANGE;
5913 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5914 return -ERANGE;
5915 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5916 return -ERANGE;
5917
5918 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5919 NL80211_KEK_LEN);
5920 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5921 NL80211_KCK_LEN);
5922 memcpy(rekey_data.replay_ctr,
5923 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5924 NL80211_REPLAY_CTR_LEN);
5925
5926 wdev_lock(wdev);
5927 if (!wdev->current_bss) {
5928 err = -ENOTCONN;
5929 goto out;
5930 }
5931
5932 if (!rdev->ops->set_rekey_data) {
5933 err = -EOPNOTSUPP;
5934 goto out;
5935 }
5936
5937 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5938 out:
5939 wdev_unlock(wdev);
5940 return err;
5941}
5942
28946da7
JB		 5943static int nl80211_register_unexpected_frame(struct sk_buff *skb,
5944 struct genl_info *info)
5945{
5946 struct net_device *dev = info->user_ptr[1];
5947 struct wireless_dev *wdev = dev->ieee80211_ptr;
5948
5949 if (wdev->iftype != NL80211_IFTYPE_AP &&
5950 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5951 return -EINVAL;
5952
5953 if (wdev->ap_unexpected_nlpid)
5954 return -EBUSY;
5955
5956 wdev->ap_unexpected_nlpid = info->snd_pid;
5957 return 0;
5958}
5959
7f6cf311
JB		 5960static int nl80211_probe_client(struct sk_buff *skb,
5961 struct genl_info *info)
5962{
5963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5964 struct net_device *dev = info->user_ptr[1];
5965 struct wireless_dev *wdev = dev->ieee80211_ptr;
5966 struct sk_buff *msg;
5967 void *hdr;
5968 const u8 *addr;
5969 u64 cookie;
5970 int err;
5971
5972 if (wdev->iftype != NL80211_IFTYPE_AP &&
5973 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5974 return -EOPNOTSUPP;
5975
5976 if (!info->attrs[NL80211_ATTR_MAC])
5977 return -EINVAL;
5978
5979 if (!rdev->ops->probe_client)
5980 return -EOPNOTSUPP;
5981
5982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5983 if (!msg)
5984 return -ENOMEM;
5985
5986 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5987 NL80211_CMD_PROBE_CLIENT);
5988
5989 if (IS_ERR(hdr)) {
5990 err = PTR_ERR(hdr);
5991 goto free_msg;
5992 }
5993
5994 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
5995
5996 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
5997 if (err)
5998 goto free_msg;
5999
6000 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6001
6002 genlmsg_end(msg, hdr);
6003
6004 return genlmsg_reply(msg, info);
6005
6006 nla_put_failure:
6007 err = -ENOBUFS;
6008 free_msg:
6009 nlmsg_free(msg);
6010 return err;
6011}
6012
5e760230
JB		 6013static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6014{
6015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6016
6017 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6018 return -EOPNOTSUPP;
6019
6020 if (rdev->ap_beacons_nlpid)
6021 return -EBUSY;
6022
6023 rdev->ap_beacons_nlpid = info->snd_pid;
6024
6025 return 0;
6026}
6027
4c476991
JB		 6028#define NL80211_FLAG_NEED_WIPHY 0x01
6029#define NL80211_FLAG_NEED_NETDEV 0x02
6030#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6031#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6032#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6033 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6034
6035static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6036 struct genl_info *info)
6037{
6038 struct cfg80211_registered_device *rdev;
6039 struct net_device *dev;
6040 int err;
6041 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6042
6043 if (rtnl)
6044 rtnl_lock();
6045
6046 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6047 rdev = cfg80211_get_dev_from_info(info);
6048 if (IS_ERR(rdev)) {
6049 if (rtnl)
6050 rtnl_unlock();
6051 return PTR_ERR(rdev);
6052 }
6053 info->user_ptr[0] = rdev;
6054 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6055 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
6056 if (err) {
6057 if (rtnl)
6058 rtnl_unlock();
6059 return err;
6060 }
41265714
JB		 6061 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6062 !netif_running(dev)) {
d537f5fd
JB		 6063 cfg80211_unlock_rdev(rdev);
6064 dev_put(dev);
41265714
JB		 6065 if (rtnl)
6066 rtnl_unlock();
6067 return -ENETDOWN;
6068 }
4c476991
JB		 6069 info->user_ptr[0] = rdev;
6070 info->user_ptr[1] = dev;
6071 }
6072
6073 return 0;
6074}
6075
6076static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6077 struct genl_info *info)
6078{
6079 if (info->user_ptr[0])
6080 cfg80211_unlock_rdev(info->user_ptr[0]);
6081 if (info->user_ptr[1])
6082 dev_put(info->user_ptr[1]);
6083 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6084 rtnl_unlock();
6085}
6086
55682965
JB		 6087static struct genl_ops nl80211_ops[] = {
6088 {
6089 .cmd = NL80211_CMD_GET_WIPHY,
6090 .doit = nl80211_get_wiphy,
6091 .dumpit = nl80211_dump_wiphy,
6092 .policy = nl80211_policy,
6093 /* can be retrieved by unprivileged users */
4c476991 6094 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6095 },
6096 {
6097 .cmd = NL80211_CMD_SET_WIPHY,
6098 .doit = nl80211_set_wiphy,
6099 .policy = nl80211_policy,
6100 .flags = GENL_ADMIN_PERM,
4c476991 6101 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6102 },
6103 {
6104 .cmd = NL80211_CMD_GET_INTERFACE,
6105 .doit = nl80211_get_interface,
6106 .dumpit = nl80211_dump_interface,
6107 .policy = nl80211_policy,
6108 /* can be retrieved by unprivileged users */
4c476991 6109 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6110 },
6111 {
6112 .cmd = NL80211_CMD_SET_INTERFACE,
6113 .doit = nl80211_set_interface,
6114 .policy = nl80211_policy,
6115 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6116 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6117 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6118 },
6119 {
6120 .cmd = NL80211_CMD_NEW_INTERFACE,
6121 .doit = nl80211_new_interface,
6122 .policy = nl80211_policy,
6123 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6124 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6125 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6126 },
6127 {
6128 .cmd = NL80211_CMD_DEL_INTERFACE,
6129 .doit = nl80211_del_interface,
6130 .policy = nl80211_policy,
41ade00f 6131 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6132 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6133 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6134 },
6135 {
6136 .cmd = NL80211_CMD_GET_KEY,
6137 .doit = nl80211_get_key,
6138 .policy = nl80211_policy,
6139 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6140 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6141 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6142 },
6143 {
6144 .cmd = NL80211_CMD_SET_KEY,
6145 .doit = nl80211_set_key,
6146 .policy = nl80211_policy,
6147 .flags = GENL_ADMIN_PERM,
41265714 6148 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6149 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6150 },
6151 {
6152 .cmd = NL80211_CMD_NEW_KEY,
6153 .doit = nl80211_new_key,
6154 .policy = nl80211_policy,
6155 .flags = GENL_ADMIN_PERM,
41265714 6156 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6157 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6158 },
6159 {
6160 .cmd = NL80211_CMD_DEL_KEY,
6161 .doit = nl80211_del_key,
6162 .policy = nl80211_policy,
55682965 6163 .flags = GENL_ADMIN_PERM,
41265714 6164 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6165 NL80211_FLAG_NEED_RTNL,
55682965 6166 },
ed1b6cc7
JB		 6167 {
6168 .cmd = NL80211_CMD_SET_BEACON,
6169 .policy = nl80211_policy,
6170 .flags = GENL_ADMIN_PERM,
6171 .doit = nl80211_addset_beacon,
4c476991
JB		 6172 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6173 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6174 },
6175 {
6176 .cmd = NL80211_CMD_NEW_BEACON,
6177 .policy = nl80211_policy,
6178 .flags = GENL_ADMIN_PERM,
6179 .doit = nl80211_addset_beacon,
4c476991
JB		 6180 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6181 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6182 },
6183 {
6184 .cmd = NL80211_CMD_DEL_BEACON,
6185 .policy = nl80211_policy,
6186 .flags = GENL_ADMIN_PERM,
6187 .doit = nl80211_del_beacon,
4c476991
JB		 6188 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6189 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6190 },
5727ef1b
JB		 6191 {
6192 .cmd = NL80211_CMD_GET_STATION,
6193 .doit = nl80211_get_station,
2ec600d6 6194 .dumpit = nl80211_dump_station,
5727ef1b 6195 .policy = nl80211_policy,
4c476991
JB		 6196 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6197 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6198 },
6199 {
6200 .cmd = NL80211_CMD_SET_STATION,
6201 .doit = nl80211_set_station,
6202 .policy = nl80211_policy,
6203 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6204 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6205 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6206 },
6207 {
6208 .cmd = NL80211_CMD_NEW_STATION,
6209 .doit = nl80211_new_station,
6210 .policy = nl80211_policy,
6211 .flags = GENL_ADMIN_PERM,
41265714 6212 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6213 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6214 },
6215 {
6216 .cmd = NL80211_CMD_DEL_STATION,
6217 .doit = nl80211_del_station,
6218 .policy = nl80211_policy,
2ec600d6 6219 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6220 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6221 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6222 },
6223 {
6224 .cmd = NL80211_CMD_GET_MPATH,
6225 .doit = nl80211_get_mpath,
6226 .dumpit = nl80211_dump_mpath,
6227 .policy = nl80211_policy,
6228 .flags = GENL_ADMIN_PERM,
41265714 6229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6230 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6231 },
6232 {
6233 .cmd = NL80211_CMD_SET_MPATH,
6234 .doit = nl80211_set_mpath,
6235 .policy = nl80211_policy,
6236 .flags = GENL_ADMIN_PERM,
41265714 6237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6238 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6239 },
6240 {
6241 .cmd = NL80211_CMD_NEW_MPATH,
6242 .doit = nl80211_new_mpath,
6243 .policy = nl80211_policy,
6244 .flags = GENL_ADMIN_PERM,
41265714 6245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6246 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6247 },
6248 {
6249 .cmd = NL80211_CMD_DEL_MPATH,
6250 .doit = nl80211_del_mpath,
6251 .policy = nl80211_policy,
9f1ba906 6252 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6254 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6255 },
6256 {
6257 .cmd = NL80211_CMD_SET_BSS,
6258 .doit = nl80211_set_bss,
6259 .policy = nl80211_policy,
b2e1b302 6260 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6262 NL80211_FLAG_NEED_RTNL,
b2e1b302 6263 },
f130347c
LR		 6264 {
6265 .cmd = NL80211_CMD_GET_REG,
6266 .doit = nl80211_get_reg,
6267 .policy = nl80211_policy,
6268 /* can be retrieved by unprivileged users */
6269 },
b2e1b302
LR		 6270 {
6271 .cmd = NL80211_CMD_SET_REG,
6272 .doit = nl80211_set_reg,
6273 .policy = nl80211_policy,
6274 .flags = GENL_ADMIN_PERM,
6275 },
6276 {
6277 .cmd = NL80211_CMD_REQ_SET_REG,
6278 .doit = nl80211_req_set_reg,
6279 .policy = nl80211_policy,
93da9cc1 6280 .flags = GENL_ADMIN_PERM,
6281 },
6282 {
24bdd9f4
JC		 6283 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6284 .doit = nl80211_get_mesh_config,
93da9cc1 6285 .policy = nl80211_policy,
6286 /* can be retrieved by unprivileged users */
4c476991
JB		 6287 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6288 NL80211_FLAG_NEED_RTNL,
93da9cc1 6289 },
6290 {
24bdd9f4
JC		 6291 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6292 .doit = nl80211_update_mesh_config,
93da9cc1 6293 .policy = nl80211_policy,
9aed3cc1 6294 .flags = GENL_ADMIN_PERM,
29cbe68c 6295 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6296 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6297 },
2a519311
JB		 6298 {
6299 .cmd = NL80211_CMD_TRIGGER_SCAN,
6300 .doit = nl80211_trigger_scan,
6301 .policy = nl80211_policy,
6302 .flags = GENL_ADMIN_PERM,
41265714 6303 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6304 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6305 },
6306 {
6307 .cmd = NL80211_CMD_GET_SCAN,
6308 .policy = nl80211_policy,
6309 .dumpit = nl80211_dump_scan,
6310 },
807f8a8c
LC		 6311 {
6312 .cmd = NL80211_CMD_START_SCHED_SCAN,
6313 .doit = nl80211_start_sched_scan,
6314 .policy = nl80211_policy,
6315 .flags = GENL_ADMIN_PERM,
6316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6317 NL80211_FLAG_NEED_RTNL,
6318 },
6319 {
6320 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6321 .doit = nl80211_stop_sched_scan,
6322 .policy = nl80211_policy,
6323 .flags = GENL_ADMIN_PERM,
6324 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6325 NL80211_FLAG_NEED_RTNL,
6326 },
636a5d36
JM		 6327 {
6328 .cmd = NL80211_CMD_AUTHENTICATE,
6329 .doit = nl80211_authenticate,
6330 .policy = nl80211_policy,
6331 .flags = GENL_ADMIN_PERM,
41265714 6332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6333 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6334 },
6335 {
6336 .cmd = NL80211_CMD_ASSOCIATE,
6337 .doit = nl80211_associate,
6338 .policy = nl80211_policy,
6339 .flags = GENL_ADMIN_PERM,
41265714 6340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6341 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6342 },
6343 {
6344 .cmd = NL80211_CMD_DEAUTHENTICATE,
6345 .doit = nl80211_deauthenticate,
6346 .policy = nl80211_policy,
6347 .flags = GENL_ADMIN_PERM,
41265714 6348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6349 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6350 },
6351 {
6352 .cmd = NL80211_CMD_DISASSOCIATE,
6353 .doit = nl80211_disassociate,
6354 .policy = nl80211_policy,
6355 .flags = GENL_ADMIN_PERM,
41265714 6356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6357 NL80211_FLAG_NEED_RTNL,
636a5d36 6358 },
04a773ad
JB		 6359 {
6360 .cmd = NL80211_CMD_JOIN_IBSS,
6361 .doit = nl80211_join_ibss,
6362 .policy = nl80211_policy,
6363 .flags = GENL_ADMIN_PERM,
41265714 6364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6365 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6366 },
6367 {
6368 .cmd = NL80211_CMD_LEAVE_IBSS,
6369 .doit = nl80211_leave_ibss,
6370 .policy = nl80211_policy,
6371 .flags = GENL_ADMIN_PERM,
41265714 6372 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6373 NL80211_FLAG_NEED_RTNL,
04a773ad 6374 },
aff89a9b
JB		 6375#ifdef CONFIG_NL80211_TESTMODE
6376 {
6377 .cmd = NL80211_CMD_TESTMODE,
6378 .doit = nl80211_testmode_do,
71063f0e 6379 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6380 .policy = nl80211_policy,
6381 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6382 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6383 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6384 },
6385#endif
b23aa676
SO		 6386 {
6387 .cmd = NL80211_CMD_CONNECT,
6388 .doit = nl80211_connect,
6389 .policy = nl80211_policy,
6390 .flags = GENL_ADMIN_PERM,
41265714 6391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6392 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6393 },
6394 {
6395 .cmd = NL80211_CMD_DISCONNECT,
6396 .doit = nl80211_disconnect,
6397 .policy = nl80211_policy,
6398 .flags = GENL_ADMIN_PERM,
41265714 6399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6400 NL80211_FLAG_NEED_RTNL,
b23aa676 6401 },
463d0183
JB		 6402 {
6403 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6404 .doit = nl80211_wiphy_netns,
6405 .policy = nl80211_policy,
6406 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6407 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6408 NL80211_FLAG_NEED_RTNL,
463d0183 6409 },
61fa713c
HS		 6410 {
6411 .cmd = NL80211_CMD_GET_SURVEY,
6412 .policy = nl80211_policy,
6413 .dumpit = nl80211_dump_survey,
6414 },
67fbb16b
SO		 6415 {
6416 .cmd = NL80211_CMD_SET_PMKSA,
6417 .doit = nl80211_setdel_pmksa,
6418 .policy = nl80211_policy,
6419 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6420 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6421 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6422 },
6423 {
6424 .cmd = NL80211_CMD_DEL_PMKSA,
6425 .doit = nl80211_setdel_pmksa,
6426 .policy = nl80211_policy,
6427 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6428 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6429 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6430 },
6431 {
6432 .cmd = NL80211_CMD_FLUSH_PMKSA,
6433 .doit = nl80211_flush_pmksa,
6434 .policy = nl80211_policy,
6435 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6436 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6437 NL80211_FLAG_NEED_RTNL,
67fbb16b 6438 },
9588bbd5
JM		 6439 {
6440 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6441 .doit = nl80211_remain_on_channel,
6442 .policy = nl80211_policy,
6443 .flags = GENL_ADMIN_PERM,
41265714 6444 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6445 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6446 },
6447 {
6448 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6449 .doit = nl80211_cancel_remain_on_channel,
6450 .policy = nl80211_policy,
6451 .flags = GENL_ADMIN_PERM,
41265714 6452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6453 NL80211_FLAG_NEED_RTNL,
9588bbd5 6454 },
13ae75b1
JM		 6455 {
6456 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6457 .doit = nl80211_set_tx_bitrate_mask,
6458 .policy = nl80211_policy,
6459 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6460 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6461 NL80211_FLAG_NEED_RTNL,
13ae75b1 6462 },
026331c4 6463 {
2e161f78
JB		 6464 .cmd = NL80211_CMD_REGISTER_FRAME,
6465 .doit = nl80211_register_mgmt,
026331c4
JM		 6466 .policy = nl80211_policy,
6467 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6468 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6469 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6470 },
6471 {
2e161f78
JB		 6472 .cmd = NL80211_CMD_FRAME,
6473 .doit = nl80211_tx_mgmt,
026331c4 6474 .policy = nl80211_policy,
f7ca38df
JB		 6475 .flags = GENL_ADMIN_PERM,
6476 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6477 NL80211_FLAG_NEED_RTNL,
6478 },
6479 {
6480 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6481 .doit = nl80211_tx_mgmt_cancel_wait,
6482 .policy = nl80211_policy,
026331c4 6483 .flags = GENL_ADMIN_PERM,
41265714 6484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6485 NL80211_FLAG_NEED_RTNL,
026331c4 6486 },
ffb9eb3d
KV		 6487 {
6488 .cmd = NL80211_CMD_SET_POWER_SAVE,
6489 .doit = nl80211_set_power_save,
6490 .policy = nl80211_policy,
6491 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6492 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6493 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6494 },
6495 {
6496 .cmd = NL80211_CMD_GET_POWER_SAVE,
6497 .doit = nl80211_get_power_save,
6498 .policy = nl80211_policy,
6499 /* can be retrieved by unprivileged users */
4c476991
JB		 6500 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6501 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6502 },
d6dc1a38
JO		 6503 {
6504 .cmd = NL80211_CMD_SET_CQM,
6505 .doit = nl80211_set_cqm,
6506 .policy = nl80211_policy,
6507 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6508 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6509 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6510 },
f444de05
JB		 6511 {
6512 .cmd = NL80211_CMD_SET_CHANNEL,
6513 .doit = nl80211_set_channel,
6514 .policy = nl80211_policy,
6515 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6516 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6517 NL80211_FLAG_NEED_RTNL,
f444de05 6518 },
e8347eba
BJ		 6519 {
6520 .cmd = NL80211_CMD_SET_WDS_PEER,
6521 .doit = nl80211_set_wds_peer,
6522 .policy = nl80211_policy,
6523 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6524 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6525 NL80211_FLAG_NEED_RTNL,
e8347eba 6526 },
29cbe68c
JB		 6527 {
6528 .cmd = NL80211_CMD_JOIN_MESH,
6529 .doit = nl80211_join_mesh,
6530 .policy = nl80211_policy,
6531 .flags = GENL_ADMIN_PERM,
6532 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6533 NL80211_FLAG_NEED_RTNL,
6534 },
6535 {
6536 .cmd = NL80211_CMD_LEAVE_MESH,
6537 .doit = nl80211_leave_mesh,
6538 .policy = nl80211_policy,
6539 .flags = GENL_ADMIN_PERM,
6540 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6541 NL80211_FLAG_NEED_RTNL,
6542 },
ff1b6e69
JB		 6543 {
6544 .cmd = NL80211_CMD_GET_WOWLAN,
6545 .doit = nl80211_get_wowlan,
6546 .policy = nl80211_policy,
6547 /* can be retrieved by unprivileged users */
6548 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6549 NL80211_FLAG_NEED_RTNL,
6550 },
6551 {
6552 .cmd = NL80211_CMD_SET_WOWLAN,
6553 .doit = nl80211_set_wowlan,
6554 .policy = nl80211_policy,
6555 .flags = GENL_ADMIN_PERM,
6556 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6557 NL80211_FLAG_NEED_RTNL,
6558 },
e5497d76
JB		 6559 {
6560 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6561 .doit = nl80211_set_rekey_data,
6562 .policy = nl80211_policy,
6563 .flags = GENL_ADMIN_PERM,
6564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6565 NL80211_FLAG_NEED_RTNL,
6566 },
109086ce
AN		 6567 {
6568 .cmd = NL80211_CMD_TDLS_MGMT,
6569 .doit = nl80211_tdls_mgmt,
6570 .policy = nl80211_policy,
6571 .flags = GENL_ADMIN_PERM,
6572 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6573 NL80211_FLAG_NEED_RTNL,
6574 },
6575 {
6576 .cmd = NL80211_CMD_TDLS_OPER,
6577 .doit = nl80211_tdls_oper,
6578 .policy = nl80211_policy,
6579 .flags = GENL_ADMIN_PERM,
6580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6581 NL80211_FLAG_NEED_RTNL,
6582 },
28946da7
JB		 6583 {
6584 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6585 .doit = nl80211_register_unexpected_frame,
6586 .policy = nl80211_policy,
6587 .flags = GENL_ADMIN_PERM,
6588 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6589 NL80211_FLAG_NEED_RTNL,
6590 },
7f6cf311
JB		 6591 {
6592 .cmd = NL80211_CMD_PROBE_CLIENT,
6593 .doit = nl80211_probe_client,
6594 .policy = nl80211_policy,
6595 .flags = GENL_ADMIN_PERM,
6596 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6597 NL80211_FLAG_NEED_RTNL,
6598 },
5e760230
JB		 6599 {
6600 .cmd = NL80211_CMD_REGISTER_BEACONS,
6601 .doit = nl80211_register_beacons,
6602 .policy = nl80211_policy,
6603 .flags = GENL_ADMIN_PERM,
6604 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6605 NL80211_FLAG_NEED_RTNL,
6606 },
55682965 6607};
9588bbd5 6608
6039f6d2
JM		 6609static struct genl_multicast_group nl80211_mlme_mcgrp = {
6610 .name = "mlme",
6611};
55682965
JB		 6612
6613/* multicast groups */
6614static struct genl_multicast_group nl80211_config_mcgrp = {
6615 .name = "config",
6616};
2a519311
JB		 6617static struct genl_multicast_group nl80211_scan_mcgrp = {
6618 .name = "scan",
6619};
73d54c9e
LR		 6620static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6621 .name = "regulatory",
6622};
55682965
JB		 6623
6624/* notification functions */
6625
6626void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6627{
6628 struct sk_buff *msg;
6629
fd2120ca 6630 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6631 if (!msg)
6632 return;
6633
6634 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6635 nlmsg_free(msg);
6636 return;
6637 }
6638
463d0183
JB		 6639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6640 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6641}
6642
362a415d
JB		 6643static int nl80211_add_scan_req(struct sk_buff *msg,
6644 struct cfg80211_registered_device *rdev)
6645{
6646 struct cfg80211_scan_request *req = rdev->scan_req;
6647 struct nlattr *nest;
6648 int i;
6649
667503dd
JB		 6650 ASSERT_RDEV_LOCK(rdev);
6651
362a415d
JB		 6652 if (WARN_ON(!req))
6653 return 0;
6654
6655 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6656 if (!nest)
6657 goto nla_put_failure;
6658 for (i = 0; i < req->n_ssids; i++)
6659 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6660 nla_nest_end(msg, nest);
6661
6662 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6663 if (!nest)
6664 goto nla_put_failure;
6665 for (i = 0; i < req->n_channels; i++)
6666 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6667 nla_nest_end(msg, nest);
6668
6669 if (req->ie)
6670 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6671
6672 return 0;
6673 nla_put_failure:
6674 return -ENOBUFS;
6675}
6676
a538e2d5
JB		 6677static int nl80211_send_scan_msg(struct sk_buff *msg,
6678 struct cfg80211_registered_device *rdev,
6679 struct net_device *netdev,
6680 u32 pid, u32 seq, int flags,
6681 u32 cmd)
2a519311
JB		 6682{
6683 void *hdr;
6684
6685 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6686 if (!hdr)
6687 return -1;
6688
b5850a7a 6689 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6690 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6691
362a415d
JB		 6692 /* ignore errors and send incomplete event anyway */
6693 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6694
6695 return genlmsg_end(msg, hdr);
6696
6697 nla_put_failure:
6698 genlmsg_cancel(msg, hdr);
6699 return -EMSGSIZE;
6700}
6701
807f8a8c
LC		 6702static int
6703nl80211_send_sched_scan_msg(struct sk_buff *msg,
6704 struct cfg80211_registered_device *rdev,
6705 struct net_device *netdev,
6706 u32 pid, u32 seq, int flags, u32 cmd)
6707{
6708 void *hdr;
6709
6710 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6711 if (!hdr)
6712 return -1;
6713
6714 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6715 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6716
6717 return genlmsg_end(msg, hdr);
6718
6719 nla_put_failure:
6720 genlmsg_cancel(msg, hdr);
6721 return -EMSGSIZE;
6722}
6723
a538e2d5
JB		 6724void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6725 struct net_device *netdev)
6726{
6727 struct sk_buff *msg;
6728
6729 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6730 if (!msg)
6731 return;
6732
6733 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6734 NL80211_CMD_TRIGGER_SCAN) < 0) {
6735 nlmsg_free(msg);
6736 return;
6737 }
6738
463d0183
JB		 6739 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6740 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6741}
6742
2a519311
JB		 6743void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6744 struct net_device *netdev)
6745{
6746 struct sk_buff *msg;
6747
fd2120ca 6748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6749 if (!msg)
6750 return;
6751
a538e2d5
JB		 6752 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6753 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6754 nlmsg_free(msg);
6755 return;
6756 }
6757
463d0183
JB		 6758 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6759 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6760}
6761
6762void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6763 struct net_device *netdev)
6764{
6765 struct sk_buff *msg;
6766
fd2120ca 6767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6768 if (!msg)
6769 return;
6770
a538e2d5
JB		 6771 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6772 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6773 nlmsg_free(msg);
6774 return;
6775 }
6776
463d0183
JB		 6777 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6778 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6779}
6780
807f8a8c
LC		 6781void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6782 struct net_device *netdev)
6783{
6784 struct sk_buff *msg;
6785
6786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6787 if (!msg)
6788 return;
6789
6790 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6791 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6792 nlmsg_free(msg);
6793 return;
6794 }
6795
6796 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6797 nl80211_scan_mcgrp.id, GFP_KERNEL);
6798}
6799
6800void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6801 struct net_device *netdev, u32 cmd)
6802{
6803 struct sk_buff *msg;
6804
6805 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6806 if (!msg)
6807 return;
6808
6809 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6810 nlmsg_free(msg);
6811 return;
6812 }
6813
6814 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6815 nl80211_scan_mcgrp.id, GFP_KERNEL);
6816}
6817
73d54c9e
LR		 6818/*
6819 * This can happen on global regulatory changes or device specific settings
6820 * based on custom world regulatory domains.
6821 */
6822void nl80211_send_reg_change_event(struct regulatory_request *request)
6823{
6824 struct sk_buff *msg;
6825 void *hdr;
6826
fd2120ca 6827 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6828 if (!msg)
6829 return;
6830
6831 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6832 if (!hdr) {
6833 nlmsg_free(msg);
6834 return;
6835 }
6836
6837 /* Userspace can always count this one always being set */
6838 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6839
6840 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6841 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6842 NL80211_REGDOM_TYPE_WORLD);
6843 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6844 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6845 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6846 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6847 request->intersect)
6848 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6849 NL80211_REGDOM_TYPE_INTERSECTION);
6850 else {
6851 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6852 NL80211_REGDOM_TYPE_COUNTRY);
6853 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6854 }
6855
6856 if (wiphy_idx_valid(request->wiphy_idx))
6857 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6858
3b7b72ee 6859 genlmsg_end(msg, hdr);
73d54c9e 6860
bc43b28c 6861 rcu_read_lock();
463d0183 6862 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6863 GFP_ATOMIC);
6864 rcu_read_unlock();
73d54c9e
LR		 6865
6866 return;
6867
6868nla_put_failure:
6869 genlmsg_cancel(msg, hdr);
6870 nlmsg_free(msg);
6871}
6872
6039f6d2
JM		 6873static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6874 struct net_device *netdev,
6875 const u8 *buf, size_t len,
e6d6e342 6876 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6877{
6878 struct sk_buff *msg;
6879 void *hdr;
6880
e6d6e342 6881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6882 if (!msg)
6883 return;
6884
6885 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6886 if (!hdr) {
6887 nlmsg_free(msg);
6888 return;
6889 }
6890
6891 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6892 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6893 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6894
3b7b72ee 6895 genlmsg_end(msg, hdr);
6039f6d2 6896
463d0183
JB		 6897 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6898 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6899 return;
6900
6901 nla_put_failure:
6902 genlmsg_cancel(msg, hdr);
6903 nlmsg_free(msg);
6904}
6905
6906void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6907 struct net_device *netdev, const u8 *buf,
6908 size_t len, gfp_t gfp)
6039f6d2
JM		 6909{
6910 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6911 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6912}
6913
6914void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6915 struct net_device *netdev, const u8 *buf,
e6d6e342 6916 size_t len, gfp_t gfp)
6039f6d2 6917{
e6d6e342
JB		 6918 nl80211_send_mlme_event(rdev, netdev, buf, len,
6919 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6920}
6921
53b46b84 6922void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6923 struct net_device *netdev, const u8 *buf,
6924 size_t len, gfp_t gfp)
6039f6d2
JM		 6925{
6926 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6927 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6928}
6929
53b46b84
JM		 6930void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6931 struct net_device *netdev, const u8 *buf,
e6d6e342 6932 size_t len, gfp_t gfp)
6039f6d2
JM		 6933{
6934 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6935 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6936}
6937
cf4e594e
JM		 6938void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6939 struct net_device *netdev, const u8 *buf,
6940 size_t len, gfp_t gfp)
6941{
6942 nl80211_send_mlme_event(rdev, netdev, buf, len,
6943 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6944}
6945
6946void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6947 struct net_device *netdev, const u8 *buf,
6948 size_t len, gfp_t gfp)
6949{
6950 nl80211_send_mlme_event(rdev, netdev, buf, len,
6951 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6952}
6953
1b06bb40
LR		 6954static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6955 struct net_device *netdev, int cmd,
e6d6e342 6956 const u8 *addr, gfp_t gfp)
1965c853
JM		 6957{
6958 struct sk_buff *msg;
6959 void *hdr;
6960
e6d6e342 6961 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6962 if (!msg)
6963 return;
6964
6965 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6966 if (!hdr) {
6967 nlmsg_free(msg);
6968 return;
6969 }
6970
6971 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6972 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6973 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6974 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6975
3b7b72ee 6976 genlmsg_end(msg, hdr);
1965c853 6977
463d0183
JB		 6978 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6979 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6980 return;
6981
6982 nla_put_failure:
6983 genlmsg_cancel(msg, hdr);
6984 nlmsg_free(msg);
6985}
6986
6987void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6988 struct net_device *netdev, const u8 *addr,
6989 gfp_t gfp)
1965c853
JM		 6990{
6991 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6992 addr, gfp);
1965c853
JM		 6993}
6994
6995void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6996 struct net_device *netdev, const u8 *addr,
6997 gfp_t gfp)
1965c853 6998{
e6d6e342
JB		 6999 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7000 addr, gfp);
1965c853
JM		 7001}
7002
b23aa676
SO		 7003void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7004 struct net_device *netdev, const u8 *bssid,
7005 const u8 *req_ie, size_t req_ie_len,
7006 const u8 *resp_ie, size_t resp_ie_len,
7007 u16 status, gfp_t gfp)
7008{
7009 struct sk_buff *msg;
7010 void *hdr;
7011
7012 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7013 if (!msg)
7014 return;
7015
7016 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7017 if (!hdr) {
7018 nlmsg_free(msg);
7019 return;
7020 }
7021
7022 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7023 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7024 if (bssid)
7025 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7026 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7027 if (req_ie)
7028 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7029 if (resp_ie)
7030 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7031
3b7b72ee 7032 genlmsg_end(msg, hdr);
b23aa676 7033
463d0183
JB		 7034 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7035 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7036 return;
7037
7038 nla_put_failure:
7039 genlmsg_cancel(msg, hdr);
7040 nlmsg_free(msg);
7041
7042}
7043
7044void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7045 struct net_device *netdev, const u8 *bssid,
7046 const u8 *req_ie, size_t req_ie_len,
7047 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7048{
7049 struct sk_buff *msg;
7050 void *hdr;
7051
7052 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7053 if (!msg)
7054 return;
7055
7056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7057 if (!hdr) {
7058 nlmsg_free(msg);
7059 return;
7060 }
7061
7062 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7063 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7064 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7065 if (req_ie)
7066 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7067 if (resp_ie)
7068 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7069
3b7b72ee 7070 genlmsg_end(msg, hdr);
b23aa676 7071
463d0183
JB		 7072 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7073 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7074 return;
7075
7076 nla_put_failure:
7077 genlmsg_cancel(msg, hdr);
7078 nlmsg_free(msg);
7079
7080}
7081
7082void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7083 struct net_device *netdev, u16 reason,
667503dd 7084 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7085{
7086 struct sk_buff *msg;
7087 void *hdr;
7088
667503dd 7089 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7090 if (!msg)
7091 return;
7092
7093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7094 if (!hdr) {
7095 nlmsg_free(msg);
7096 return;
7097 }
7098
7099 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7100 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7101 if (from_ap && reason)
7102 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7103 if (from_ap)
7104 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7105 if (ie)
7106 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7107
3b7b72ee 7108 genlmsg_end(msg, hdr);
b23aa676 7109
463d0183
JB		 7110 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7111 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7112 return;
7113
7114 nla_put_failure:
7115 genlmsg_cancel(msg, hdr);
7116 nlmsg_free(msg);
7117
7118}
7119
04a773ad
JB		 7120void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7121 struct net_device *netdev, const u8 *bssid,
7122 gfp_t gfp)
7123{
7124 struct sk_buff *msg;
7125 void *hdr;
7126
fd2120ca 7127 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7128 if (!msg)
7129 return;
7130
7131 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7132 if (!hdr) {
7133 nlmsg_free(msg);
7134 return;
7135 }
7136
7137 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7138 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7139 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7140
3b7b72ee 7141 genlmsg_end(msg, hdr);
04a773ad 7142
463d0183
JB		 7143 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7144 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7145 return;
7146
7147 nla_put_failure:
7148 genlmsg_cancel(msg, hdr);
7149 nlmsg_free(msg);
7150}
7151
c93b5e71
JC		 7152void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7153 struct net_device *netdev,
7154 const u8 *macaddr, const u8* ie, u8 ie_len,
7155 gfp_t gfp)
7156{
7157 struct sk_buff *msg;
7158 void *hdr;
7159
7160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7161 if (!msg)
7162 return;
7163
7164 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7165 if (!hdr) {
7166 nlmsg_free(msg);
7167 return;
7168 }
7169
7170 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7171 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7172 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7173 if (ie_len && ie)
7174 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7175
3b7b72ee 7176 genlmsg_end(msg, hdr);
c93b5e71
JC		 7177
7178 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7179 nl80211_mlme_mcgrp.id, gfp);
7180 return;
7181
7182 nla_put_failure:
7183 genlmsg_cancel(msg, hdr);
7184 nlmsg_free(msg);
7185}
7186
a3b8b056
JM		 7187void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7188 struct net_device *netdev, const u8 *addr,
7189 enum nl80211_key_type key_type, int key_id,
e6d6e342 7190 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7191{
7192 struct sk_buff *msg;
7193 void *hdr;
7194
e6d6e342 7195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7196 if (!msg)
7197 return;
7198
7199 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7200 if (!hdr) {
7201 nlmsg_free(msg);
7202 return;
7203 }
7204
7205 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7206 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7207 if (addr)
7208 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7209 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7210 if (key_id != -1)
7211 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7212 if (tsc)
7213 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7214
3b7b72ee 7215 genlmsg_end(msg, hdr);
a3b8b056 7216
463d0183
JB		 7217 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7218 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7219 return;
7220
7221 nla_put_failure:
7222 genlmsg_cancel(msg, hdr);
7223 nlmsg_free(msg);
7224}
7225
6bad8766
LR		 7226void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7227 struct ieee80211_channel *channel_before,
7228 struct ieee80211_channel *channel_after)
7229{
7230 struct sk_buff *msg;
7231 void *hdr;
7232 struct nlattr *nl_freq;
7233
fd2120ca 7234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7235 if (!msg)
7236 return;
7237
7238 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7239 if (!hdr) {
7240 nlmsg_free(msg);
7241 return;
7242 }
7243
7244 /*
7245 * Since we are applying the beacon hint to a wiphy we know its
7246 * wiphy_idx is valid
7247 */
7248 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7249
7250 /* Before */
7251 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7252 if (!nl_freq)
7253 goto nla_put_failure;
7254 if (nl80211_msg_put_channel(msg, channel_before))
7255 goto nla_put_failure;
7256 nla_nest_end(msg, nl_freq);
7257
7258 /* After */
7259 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7260 if (!nl_freq)
7261 goto nla_put_failure;
7262 if (nl80211_msg_put_channel(msg, channel_after))
7263 goto nla_put_failure;
7264 nla_nest_end(msg, nl_freq);
7265
3b7b72ee 7266 genlmsg_end(msg, hdr);
6bad8766 7267
463d0183
JB		 7268 rcu_read_lock();
7269 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7270 GFP_ATOMIC);
7271 rcu_read_unlock();
6bad8766
LR		 7272
7273 return;
7274
7275nla_put_failure:
7276 genlmsg_cancel(msg, hdr);
7277 nlmsg_free(msg);
7278}
7279
9588bbd5
JM		 7280static void nl80211_send_remain_on_chan_event(
7281 int cmd, struct cfg80211_registered_device *rdev,
7282 struct net_device *netdev, u64 cookie,
7283 struct ieee80211_channel *chan,
7284 enum nl80211_channel_type channel_type,
7285 unsigned int duration, gfp_t gfp)
7286{
7287 struct sk_buff *msg;
7288 void *hdr;
7289
7290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7291 if (!msg)
7292 return;
7293
7294 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7295 if (!hdr) {
7296 nlmsg_free(msg);
7297 return;
7298 }
7299
7300 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7301 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7302 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7303 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7304 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7305
7306 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7307 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7308
3b7b72ee 7309 genlmsg_end(msg, hdr);
9588bbd5
JM		 7310
7311 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7312 nl80211_mlme_mcgrp.id, gfp);
7313 return;
7314
7315 nla_put_failure:
7316 genlmsg_cancel(msg, hdr);
7317 nlmsg_free(msg);
7318}
7319
7320void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7321 struct net_device *netdev, u64 cookie,
7322 struct ieee80211_channel *chan,
7323 enum nl80211_channel_type channel_type,
7324 unsigned int duration, gfp_t gfp)
7325{
7326 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7327 rdev, netdev, cookie, chan,
7328 channel_type, duration, gfp);
7329}
7330
7331void nl80211_send_remain_on_channel_cancel(
7332 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7333 u64 cookie, struct ieee80211_channel *chan,
7334 enum nl80211_channel_type channel_type, gfp_t gfp)
7335{
7336 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7337 rdev, netdev, cookie, chan,
7338 channel_type, 0, gfp);
7339}
7340
98b62183
JB		 7341void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7342 struct net_device *dev, const u8 *mac_addr,
7343 struct station_info *sinfo, gfp_t gfp)
7344{
7345 struct sk_buff *msg;
7346
7347 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7348 if (!msg)
7349 return;
7350
7351 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7352 nlmsg_free(msg);
7353 return;
7354 }
7355
7356 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7357 nl80211_mlme_mcgrp.id, gfp);
7358}
7359
ec15e68b
JM		 7360void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7361 struct net_device *dev, const u8 *mac_addr,
7362 gfp_t gfp)
7363{
7364 struct sk_buff *msg;
7365 void *hdr;
7366
7367 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7368 if (!msg)
7369 return;
7370
7371 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7372 if (!hdr) {
7373 nlmsg_free(msg);
7374 return;
7375 }
7376
7377 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7378 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7379
3b7b72ee 7380 genlmsg_end(msg, hdr);
ec15e68b
JM		 7381
7382 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7383 nl80211_mlme_mcgrp.id, gfp);
7384 return;
7385
7386 nla_put_failure:
7387 genlmsg_cancel(msg, hdr);
7388 nlmsg_free(msg);
7389}
7390
b92ab5d8
JB		 7391static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7392 const u8 *addr, gfp_t gfp)
28946da7
JB		 7393{
7394 struct wireless_dev *wdev = dev->ieee80211_ptr;
7395 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7396 struct sk_buff *msg;
7397 void *hdr;
7398 int err;
7399 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7400
7401 if (!nlpid)
7402 return false;
7403
7404 msg = nlmsg_new(100, gfp);
7405 if (!msg)
7406 return true;
7407
b92ab5d8 7408 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7409 if (!hdr) {
7410 nlmsg_free(msg);
7411 return true;
7412 }
7413
7414 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7415 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7416 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7417
7418 err = genlmsg_end(msg, hdr);
7419 if (err < 0) {
7420 nlmsg_free(msg);
7421 return true;
7422 }
7423
7424 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7425 return true;
7426
7427 nla_put_failure:
7428 genlmsg_cancel(msg, hdr);
7429 nlmsg_free(msg);
7430 return true;
7431}
7432
b92ab5d8
JB		 7433bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7434{
7435 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7436 addr, gfp);
7437}
7438
7439bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7440 const u8 *addr, gfp_t gfp)
7441{
7442 return __nl80211_unexpected_frame(dev,
7443 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7444 addr, gfp);
7445}
7446
2e161f78
JB		 7447int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7448 struct net_device *netdev, u32 nlpid,
7449 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7450{
7451 struct sk_buff *msg;
7452 void *hdr;
026331c4
JM		 7453
7454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7455 if (!msg)
7456 return -ENOMEM;
7457
2e161f78 7458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7459 if (!hdr) {
7460 nlmsg_free(msg);
7461 return -ENOMEM;
7462 }
7463
7464 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7465 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7466 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7467 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7468
3b7b72ee 7469 genlmsg_end(msg, hdr);
026331c4 7470
3b7b72ee 7471 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7472
7473 nla_put_failure:
7474 genlmsg_cancel(msg, hdr);
7475 nlmsg_free(msg);
7476 return -ENOBUFS;
7477}
7478
2e161f78
JB		 7479void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7480 struct net_device *netdev, u64 cookie,
7481 const u8 *buf, size_t len, bool ack,
7482 gfp_t gfp)
026331c4
JM		 7483{
7484 struct sk_buff *msg;
7485 void *hdr;
7486
7487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7488 if (!msg)
7489 return;
7490
2e161f78 7491 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7492 if (!hdr) {
7493 nlmsg_free(msg);
7494 return;
7495 }
7496
7497 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7498 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7499 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7500 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7501 if (ack)
7502 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7503
3b7b72ee 7504 genlmsg_end(msg, hdr);
026331c4
JM		 7505
7506 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7507 return;
7508
7509 nla_put_failure:
7510 genlmsg_cancel(msg, hdr);
7511 nlmsg_free(msg);
7512}
7513
d6dc1a38
JO		 7514void
7515nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7516 struct net_device *netdev,
7517 enum nl80211_cqm_rssi_threshold_event rssi_event,
7518 gfp_t gfp)
7519{
7520 struct sk_buff *msg;
7521 struct nlattr *pinfoattr;
7522 void *hdr;
7523
7524 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7525 if (!msg)
7526 return;
7527
7528 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7529 if (!hdr) {
7530 nlmsg_free(msg);
7531 return;
7532 }
7533
7534 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7535 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7536
7537 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7538 if (!pinfoattr)
7539 goto nla_put_failure;
7540
7541 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7542 rssi_event);
7543
7544 nla_nest_end(msg, pinfoattr);
7545
3b7b72ee 7546 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7547
7548 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7549 nl80211_mlme_mcgrp.id, gfp);
7550 return;
7551
7552 nla_put_failure:
7553 genlmsg_cancel(msg, hdr);
7554 nlmsg_free(msg);
7555}
7556
e5497d76
JB		 7557void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7558 struct net_device *netdev, const u8 *bssid,
7559 const u8 *replay_ctr, gfp_t gfp)
7560{
7561 struct sk_buff *msg;
7562 struct nlattr *rekey_attr;
7563 void *hdr;
7564
7565 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7566 if (!msg)
7567 return;
7568
7569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7570 if (!hdr) {
7571 nlmsg_free(msg);
7572 return;
7573 }
7574
7575 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7576 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7577 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7578
7579 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7580 if (!rekey_attr)
7581 goto nla_put_failure;
7582
7583 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7584 NL80211_REPLAY_CTR_LEN, replay_ctr);
7585
7586 nla_nest_end(msg, rekey_attr);
7587
3b7b72ee 7588 genlmsg_end(msg, hdr);
e5497d76
JB		 7589
7590 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7591 nl80211_mlme_mcgrp.id, gfp);
7592 return;
7593
7594 nla_put_failure:
7595 genlmsg_cancel(msg, hdr);
7596 nlmsg_free(msg);
7597}
7598
c9df56b4
JM		 7599void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7600 struct net_device *netdev, int index,
7601 const u8 *bssid, bool preauth, gfp_t gfp)
7602{
7603 struct sk_buff *msg;
7604 struct nlattr *attr;
7605 void *hdr;
7606
7607 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7608 if (!msg)
7609 return;
7610
7611 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7612 if (!hdr) {
7613 nlmsg_free(msg);
7614 return;
7615 }
7616
7617 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7618 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7619
7620 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7621 if (!attr)
7622 goto nla_put_failure;
7623
7624 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7625 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7626 if (preauth)
7627 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7628
7629 nla_nest_end(msg, attr);
7630
3b7b72ee 7631 genlmsg_end(msg, hdr);
c9df56b4
JM		 7632
7633 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7634 nl80211_mlme_mcgrp.id, gfp);
7635 return;
7636
7637 nla_put_failure:
7638 genlmsg_cancel(msg, hdr);
7639 nlmsg_free(msg);
7640}
7641
c063dbf5
JB		 7642void
7643nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7644 struct net_device *netdev, const u8 *peer,
7645 u32 num_packets, gfp_t gfp)
7646{
7647 struct sk_buff *msg;
7648 struct nlattr *pinfoattr;
7649 void *hdr;
7650
7651 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7652 if (!msg)
7653 return;
7654
7655 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7656 if (!hdr) {
7657 nlmsg_free(msg);
7658 return;
7659 }
7660
7661 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7662 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7663 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7664
7665 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7666 if (!pinfoattr)
7667 goto nla_put_failure;
7668
7669 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7670
7671 nla_nest_end(msg, pinfoattr);
7672
3b7b72ee 7673 genlmsg_end(msg, hdr);
c063dbf5
JB		 7674
7675 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7676 nl80211_mlme_mcgrp.id, gfp);
7677 return;
7678
7679 nla_put_failure:
7680 genlmsg_cancel(msg, hdr);
7681 nlmsg_free(msg);
7682}
7683
7f6cf311
JB		 7684void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7685 u64 cookie, bool acked, gfp_t gfp)
7686{
7687 struct wireless_dev *wdev = dev->ieee80211_ptr;
7688 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7689 struct sk_buff *msg;
7690 void *hdr;
7691 int err;
7692
7693 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7694 if (!msg)
7695 return;
7696
7697 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7698 if (!hdr) {
7699 nlmsg_free(msg);
7700 return;
7701 }
7702
7703 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7704 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7705 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7706 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7707 if (acked)
7708 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7709
7710 err = genlmsg_end(msg, hdr);
7711 if (err < 0) {
7712 nlmsg_free(msg);
7713 return;
7714 }
7715
7716 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7717 nl80211_mlme_mcgrp.id, gfp);
7718 return;
7719
7720 nla_put_failure:
7721 genlmsg_cancel(msg, hdr);
7722 nlmsg_free(msg);
7723}
7724EXPORT_SYMBOL(cfg80211_probe_status);
7725
5e760230
JB		 7726void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7727 const u8 *frame, size_t len,
7728 int freq, gfp_t gfp)
7729{
7730 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7731 struct sk_buff *msg;
7732 void *hdr;
7733 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7734
7735 if (!nlpid)
7736 return;
7737
7738 msg = nlmsg_new(len + 100, gfp);
7739 if (!msg)
7740 return;
7741
7742 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7743 if (!hdr) {
7744 nlmsg_free(msg);
7745 return;
7746 }
7747
7748 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7749 if (freq)
7750 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7751 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7752
7753 genlmsg_end(msg, hdr);
7754
7755 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7756 return;
7757
7758 nla_put_failure:
7759 genlmsg_cancel(msg, hdr);
7760 nlmsg_free(msg);
7761}
7762EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7763
026331c4
JM		 7764static int nl80211_netlink_notify(struct notifier_block * nb,
7765 unsigned long state,
7766 void *_notify)
7767{
7768 struct netlink_notify *notify = _notify;
7769 struct cfg80211_registered_device *rdev;
7770 struct wireless_dev *wdev;
7771
7772 if (state != NETLINK_URELEASE)
7773 return NOTIFY_DONE;
7774
7775 rcu_read_lock();
7776
5e760230 7777 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7778 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7779 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7780 if (rdev->ap_beacons_nlpid == notify->pid)
7781 rdev->ap_beacons_nlpid = 0;
7782 }
026331c4
JM		 7783
7784 rcu_read_unlock();
7785
7786 return NOTIFY_DONE;
7787}
7788
7789static struct notifier_block nl80211_netlink_notifier = {
7790 .notifier_call = nl80211_netlink_notify,
7791};
7792
55682965
JB		 7793/* initialisation/exit functions */
7794
7795int nl80211_init(void)
7796{
0d63cbb5 7797 int err;
55682965 7798
0d63cbb5
MM		 7799 err = genl_register_family_with_ops(&nl80211_fam,
7800 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7801 if (err)
7802 return err;
7803
55682965
JB		 7804 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7805 if (err)
7806 goto err_out;
7807
2a519311
JB		 7808 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7809 if (err)
7810 goto err_out;
7811
73d54c9e
LR		 7812 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7813 if (err)
7814 goto err_out;
7815
6039f6d2
JM		 7816 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7817 if (err)
7818 goto err_out;
7819
aff89a9b
JB		 7820#ifdef CONFIG_NL80211_TESTMODE
7821 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7822 if (err)
7823 goto err_out;
7824#endif
7825
026331c4
JM		 7826 err = netlink_register_notifier(&nl80211_netlink_notifier);
7827 if (err)
7828 goto err_out;
7829
55682965
JB		 7830 return 0;
7831 err_out:
7832 genl_unregister_family(&nl80211_fam);
7833 return err;
7834}
7835
7836void nl80211_exit(void)
7837{
026331c4 7838 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7839 genl_unregister_family(&nl80211_fam);
7840}
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