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nl80211: advertise device AP SME
[mirror_ubuntu-bionic-kernel.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
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 },
55682965
JB		 199};
200
e31b8213 201/* policy for the key attributes */
b54452b0 202static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 203 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 204 [NL80211_KEY_IDX] = { .type = NLA_U8 },
205 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 206 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 207 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
208 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 209 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 210 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
211};
212
213/* policy for the key default flags */
214static const struct nla_policy
215nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
216 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
217 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 218};
219
ff1b6e69
JB		 220/* policy for WoWLAN attributes */
221static const struct nla_policy
222nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
223 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
224 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
225 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
226 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 227 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
228 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
229 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
230 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 231};
232
e5497d76
JB		 233/* policy for GTK rekey offload attributes */
234static const struct nla_policy
235nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
236 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
237 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
238 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
239};
240
a1f1c21c
LC		 241static const struct nla_policy
242nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
243 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
244 .len = IEEE80211_MAX_SSID_LEN },
245};
246
a043897a
HS		 247/* ifidx get helper */
248static int nl80211_get_ifidx(struct netlink_callback *cb)
249{
250 int res;
251
252 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
253 nl80211_fam.attrbuf, nl80211_fam.maxattr,
254 nl80211_policy);
255 if (res)
256 return res;
257
258 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
259 return -EINVAL;
260
261 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
262 if (!res)
263 return -EINVAL;
264 return res;
265}
266
67748893
JB		 267static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
268 struct netlink_callback *cb,
269 struct cfg80211_registered_device **rdev,
270 struct net_device **dev)
271{
272 int ifidx = cb->args[0];
273 int err;
274
275 if (!ifidx)
276 ifidx = nl80211_get_ifidx(cb);
277 if (ifidx < 0)
278 return ifidx;
279
280 cb->args[0] = ifidx;
281
282 rtnl_lock();
283
284 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
285 if (!*dev) {
286 err = -ENODEV;
287 goto out_rtnl;
288 }
289
290 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 291 if (IS_ERR(*rdev)) {
292 err = PTR_ERR(*rdev);
67748893
JB		 293 goto out_rtnl;
294 }
295
296 return 0;
297 out_rtnl:
298 rtnl_unlock();
299 return err;
300}
301
302static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
303{
304 cfg80211_unlock_rdev(rdev);
305 rtnl_unlock();
306}
307
f4a11bb0
JB		 308/* IE validation */
309static bool is_valid_ie_attr(const struct nlattr *attr)
310{
311 const u8 *pos;
312 int len;
313
314 if (!attr)
315 return true;
316
317 pos = nla_data(attr);
318 len = nla_len(attr);
319
320 while (len) {
321 u8 elemlen;
322
323 if (len < 2)
324 return false;
325 len -= 2;
326
327 elemlen = pos[1];
328 if (elemlen > len)
329 return false;
330
331 len -= elemlen;
332 pos += 2 + elemlen;
333 }
334
335 return true;
336}
337
55682965
JB		 338/* message building helper */
339static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
340 int flags, u8 cmd)
341{
342 /* since there is no private header just add the generic one */
343 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
344}
345
5dab3b8a
LR		 346static int nl80211_msg_put_channel(struct sk_buff *msg,
347 struct ieee80211_channel *chan)
348{
349 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
350 chan->center_freq);
351
352 if (chan->flags & IEEE80211_CHAN_DISABLED)
353 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
354 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
355 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
356 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
357 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
358 if (chan->flags & IEEE80211_CHAN_RADAR)
359 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
360
361 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
362 DBM_TO_MBM(chan->max_power));
363
364 return 0;
365
366 nla_put_failure:
367 return -ENOBUFS;
368}
369
55682965
JB		 370/* netlink command implementations */
371
b9454e83
JB		 372struct key_parse {
373 struct key_params p;
374 int idx;
e31b8213 375 int type;
b9454e83 376 bool def, defmgmt;
dbd2fd65 377 bool def_uni, def_multi;
b9454e83
JB		 378};
379
380static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
381{
382 struct nlattr *tb[NL80211_KEY_MAX + 1];
383 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
384 nl80211_key_policy);
385 if (err)
386 return err;
387
388 k->def = !!tb[NL80211_KEY_DEFAULT];
389 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
390
dbd2fd65
JB		 391 if (k->def) {
392 k->def_uni = true;
393 k->def_multi = true;
394 }
395 if (k->defmgmt)
396 k->def_multi = true;
397
b9454e83
JB		 398 if (tb[NL80211_KEY_IDX])
399 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
400
401 if (tb[NL80211_KEY_DATA]) {
402 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
403 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
404 }
405
406 if (tb[NL80211_KEY_SEQ]) {
407 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
408 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
409 }
410
411 if (tb[NL80211_KEY_CIPHER])
412 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
413
e31b8213
JB		 414 if (tb[NL80211_KEY_TYPE]) {
415 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
416 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
417 return -EINVAL;
418 }
419
dbd2fd65
JB		 420 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
421 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
422 int err = nla_parse_nested(kdt,
423 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
424 tb[NL80211_KEY_DEFAULT_TYPES],
425 nl80211_key_default_policy);
426 if (err)
427 return err;
428
429 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
430 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
431 }
432
b9454e83
JB		 433 return 0;
434}
435
436static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
437{
438 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
439 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
440 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
441 }
442
443 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
444 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
445 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
446 }
447
448 if (info->attrs[NL80211_ATTR_KEY_IDX])
449 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
450
451 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
452 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
453
454 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
455 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
456
dbd2fd65
JB		 457 if (k->def) {
458 k->def_uni = true;
459 k->def_multi = true;
460 }
461 if (k->defmgmt)
462 k->def_multi = true;
463
e31b8213
JB		 464 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
465 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
466 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
467 return -EINVAL;
468 }
469
dbd2fd65
JB		 470 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
471 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
472 int err = nla_parse_nested(
473 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
474 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
475 nl80211_key_default_policy);
476 if (err)
477 return err;
478
479 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
480 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
481 }
482
b9454e83
JB		 483 return 0;
484}
485
486static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
487{
488 int err;
489
490 memset(k, 0, sizeof(*k));
491 k->idx = -1;
e31b8213 492 k->type = -1;
b9454e83
JB		 493
494 if (info->attrs[NL80211_ATTR_KEY])
495 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
496 else
497 err = nl80211_parse_key_old(info, k);
498
499 if (err)
500 return err;
501
502 if (k->def && k->defmgmt)
503 return -EINVAL;
504
dbd2fd65
JB		 505 if (k->defmgmt) {
506 if (k->def_uni || !k->def_multi)
507 return -EINVAL;
508 }
509
b9454e83
JB		 510 if (k->idx != -1) {
511 if (k->defmgmt) {
512 if (k->idx < 4 || k->idx > 5)
513 return -EINVAL;
514 } else if (k->def) {
515 if (k->idx < 0 || k->idx > 3)
516 return -EINVAL;
517 } else {
518 if (k->idx < 0 || k->idx > 5)
519 return -EINVAL;
520 }
521 }
522
523 return 0;
524}
525
fffd0934
JB		 526static struct cfg80211_cached_keys *
527nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
528 struct nlattr *keys)
529{
530 struct key_parse parse;
531 struct nlattr *key;
532 struct cfg80211_cached_keys *result;
533 int rem, err, def = 0;
534
535 result = kzalloc(sizeof(*result), GFP_KERNEL);
536 if (!result)
537 return ERR_PTR(-ENOMEM);
538
539 result->def = -1;
540 result->defmgmt = -1;
541
542 nla_for_each_nested(key, keys, rem) {
543 memset(&parse, 0, sizeof(parse));
544 parse.idx = -1;
545
546 err = nl80211_parse_key_new(key, &parse);
547 if (err)
548 goto error;
549 err = -EINVAL;
550 if (!parse.p.key)
551 goto error;
552 if (parse.idx < 0 || parse.idx > 4)
553 goto error;
554 if (parse.def) {
555 if (def)
556 goto error;
557 def = 1;
558 result->def = parse.idx;
dbd2fd65
JB		 559 if (!parse.def_uni || !parse.def_multi)
560 goto error;
fffd0934
JB		 561 } else if (parse.defmgmt)
562 goto error;
563 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 564 parse.idx, false, NULL);
fffd0934
JB		 565 if (err)
566 goto error;
567 result->params[parse.idx].cipher = parse.p.cipher;
568 result->params[parse.idx].key_len = parse.p.key_len;
569 result->params[parse.idx].key = result->data[parse.idx];
570 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
571 }
572
573 return result;
574 error:
575 kfree(result);
576 return ERR_PTR(err);
577}
578
579static int nl80211_key_allowed(struct wireless_dev *wdev)
580{
581 ASSERT_WDEV_LOCK(wdev);
582
fffd0934
JB		 583 switch (wdev->iftype) {
584 case NL80211_IFTYPE_AP:
585 case NL80211_IFTYPE_AP_VLAN:
074ac8df 586 case NL80211_IFTYPE_P2P_GO:
ff973af7 587 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 588 break;
589 case NL80211_IFTYPE_ADHOC:
590 if (!wdev->current_bss)
591 return -ENOLINK;
592 break;
593 case NL80211_IFTYPE_STATION:
074ac8df 594 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 595 if (wdev->sme_state != CFG80211_SME_CONNECTED)
596 return -ENOLINK;
597 break;
598 default:
599 return -EINVAL;
600 }
601
602 return 0;
603}
604
7527a782
JB		 605static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
606{
607 struct nlattr *nl_modes = nla_nest_start(msg, attr);
608 int i;
609
610 if (!nl_modes)
611 goto nla_put_failure;
612
613 i = 0;
614 while (ifmodes) {
615 if (ifmodes & 1)
616 NLA_PUT_FLAG(msg, i);
617 ifmodes >>= 1;
618 i++;
619 }
620
621 nla_nest_end(msg, nl_modes);
622 return 0;
623
624nla_put_failure:
625 return -ENOBUFS;
626}
627
628static int nl80211_put_iface_combinations(struct wiphy *wiphy,
629 struct sk_buff *msg)
630{
631 struct nlattr *nl_combis;
632 int i, j;
633
634 nl_combis = nla_nest_start(msg,
635 NL80211_ATTR_INTERFACE_COMBINATIONS);
636 if (!nl_combis)
637 goto nla_put_failure;
638
639 for (i = 0; i < wiphy->n_iface_combinations; i++) {
640 const struct ieee80211_iface_combination *c;
641 struct nlattr *nl_combi, *nl_limits;
642
643 c = &wiphy->iface_combinations[i];
644
645 nl_combi = nla_nest_start(msg, i + 1);
646 if (!nl_combi)
647 goto nla_put_failure;
648
649 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
650 if (!nl_limits)
651 goto nla_put_failure;
652
653 for (j = 0; j < c->n_limits; j++) {
654 struct nlattr *nl_limit;
655
656 nl_limit = nla_nest_start(msg, j + 1);
657 if (!nl_limit)
658 goto nla_put_failure;
659 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
660 c->limits[j].max);
661 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
662 c->limits[j].types))
663 goto nla_put_failure;
664 nla_nest_end(msg, nl_limit);
665 }
666
667 nla_nest_end(msg, nl_limits);
668
669 if (c->beacon_int_infra_match)
670 NLA_PUT_FLAG(msg,
671 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
672 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
673 c->num_different_channels);
674 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
675 c->max_interfaces);
676
677 nla_nest_end(msg, nl_combi);
678 }
679
680 nla_nest_end(msg, nl_combis);
681
682 return 0;
683nla_put_failure:
684 return -ENOBUFS;
685}
686
55682965
JB		 687static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
688 struct cfg80211_registered_device *dev)
689{
690 void *hdr;
ee688b00
JB		 691 struct nlattr *nl_bands, *nl_band;
692 struct nlattr *nl_freqs, *nl_freq;
693 struct nlattr *nl_rates, *nl_rate;
8fdc621d 694 struct nlattr *nl_cmds;
ee688b00
JB		 695 enum ieee80211_band band;
696 struct ieee80211_channel *chan;
697 struct ieee80211_rate *rate;
698 int i;
2e161f78
JB		 699 const struct ieee80211_txrx_stypes *mgmt_stypes =
700 dev->wiphy.mgmt_stypes;
55682965
JB		 701
702 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
703 if (!hdr)
704 return -1;
705
b5850a7a 706 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 707 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 708
f5ea9120
JB		 709 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
710 cfg80211_rdev_list_generation);
711
b9a5f8ca
JM		 712 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
713 dev->wiphy.retry_short);
714 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
715 dev->wiphy.retry_long);
716 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
717 dev->wiphy.frag_threshold);
718 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
719 dev->wiphy.rts_threshold);
81077e82
LT		 720 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
721 dev->wiphy.coverage_class);
2a519311
JB		 722 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
723 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 724 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
725 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 726 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
727 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 728 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
729 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 730 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
731 dev->wiphy.max_match_sets);
ee688b00 732
e31b8213
JB		 733 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
734 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 735 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
736 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 737 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
738 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 739 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
740 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 741 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
742 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
743 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
744 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 745
25e47c18
JB		 746 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
747 sizeof(u32) * dev->wiphy.n_cipher_suites,
748 dev->wiphy.cipher_suites);
749
67fbb16b
SO		 750 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
751 dev->wiphy.max_num_pmkids);
752
c0692b8f
JB		 753 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
754 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
755
39fd5de4
BR		 756 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
757 dev->wiphy.available_antennas_tx);
758 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
759 dev->wiphy.available_antennas_rx);
760
7f531e03
BR		 761 if ((dev->wiphy.available_antennas_tx ||
762 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 763 u32 tx_ant = 0, rx_ant = 0;
764 int res;
765 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
766 if (!res) {
767 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
769 }
770 }
771
7527a782
JB		 772 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
773 dev->wiphy.interface_modes))
f59ac048
LR		 774 goto nla_put_failure;
775
ee688b00
JB		 776 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
777 if (!nl_bands)
778 goto nla_put_failure;
779
780 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
781 if (!dev->wiphy.bands[band])
782 continue;
783
784 nl_band = nla_nest_start(msg, band);
785 if (!nl_band)
786 goto nla_put_failure;
787
d51626df
JB		 788 /* add HT info */
789 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
790 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
791 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
792 &dev->wiphy.bands[band]->ht_cap.mcs);
793 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
794 dev->wiphy.bands[band]->ht_cap.cap);
795 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
796 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
797 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
798 dev->wiphy.bands[band]->ht_cap.ampdu_density);
799 }
800
ee688b00
JB		 801 /* add frequencies */
802 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
803 if (!nl_freqs)
804 goto nla_put_failure;
805
806 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
807 nl_freq = nla_nest_start(msg, i);
808 if (!nl_freq)
809 goto nla_put_failure;
810
811 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 812
813 if (nl80211_msg_put_channel(msg, chan))
814 goto nla_put_failure;
e2f367f2 815
ee688b00
JB		 816 nla_nest_end(msg, nl_freq);
817 }
818
819 nla_nest_end(msg, nl_freqs);
820
821 /* add bitrates */
822 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
823 if (!nl_rates)
824 goto nla_put_failure;
825
826 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
827 nl_rate = nla_nest_start(msg, i);
828 if (!nl_rate)
829 goto nla_put_failure;
830
831 rate = &dev->wiphy.bands[band]->bitrates[i];
832 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
833 rate->bitrate);
834 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
835 NLA_PUT_FLAG(msg,
836 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
837
838 nla_nest_end(msg, nl_rate);
839 }
840
841 nla_nest_end(msg, nl_rates);
842
843 nla_nest_end(msg, nl_band);
844 }
845 nla_nest_end(msg, nl_bands);
846
8fdc621d
JB		 847 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
848 if (!nl_cmds)
849 goto nla_put_failure;
850
851 i = 0;
852#define CMD(op, n) \
853 do { \
854 if (dev->ops->op) { \
855 i++; \
856 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
857 } \
858 } while (0)
859
860 CMD(add_virtual_intf, NEW_INTERFACE);
861 CMD(change_virtual_intf, SET_INTERFACE);
862 CMD(add_key, NEW_KEY);
863 CMD(add_beacon, NEW_BEACON);
864 CMD(add_station, NEW_STATION);
865 CMD(add_mpath, NEW_MPATH);
24bdd9f4 866 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 867 CMD(change_bss, SET_BSS);
636a5d36
JM		 868 CMD(auth, AUTHENTICATE);
869 CMD(assoc, ASSOCIATE);
870 CMD(deauth, DEAUTHENTICATE);
871 CMD(disassoc, DISASSOCIATE);
04a773ad 872 CMD(join_ibss, JOIN_IBSS);
29cbe68c 873 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 874 CMD(set_pmksa, SET_PMKSA);
875 CMD(del_pmksa, DEL_PMKSA);
876 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 877 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 878 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 879 CMD(mgmt_tx, FRAME);
f7ca38df 880 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 881 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 882 i++;
883 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
884 }
f444de05 885 CMD(set_channel, SET_CHANNEL);
e8347eba 886 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 887 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
888 CMD(tdls_mgmt, TDLS_MGMT);
889 CMD(tdls_oper, TDLS_OPER);
890 }
807f8a8c
LC		 891 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
892 CMD(sched_scan_start, START_SCHED_SCAN);
8fdc621d
JB		 893
894#undef CMD
b23aa676 895
6829c878 896 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 897 i++;
898 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
899 }
900
6829c878 901 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 902 i++;
903 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
904 }
905
8fdc621d
JB		 906 nla_nest_end(msg, nl_cmds);
907
a293911d
JB		 908 if (dev->ops->remain_on_channel)
909 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
910 dev->wiphy.max_remain_on_channel_duration);
911
d2da5878 912 if (dev->ops->mgmt_tx_cancel_wait)
f7ca38df
JB		 913 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
914
2e161f78
JB		 915 if (mgmt_stypes) {
916 u16 stypes;
917 struct nlattr *nl_ftypes, *nl_ifs;
918 enum nl80211_iftype ift;
919
920 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
921 if (!nl_ifs)
922 goto nla_put_failure;
923
924 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
925 nl_ftypes = nla_nest_start(msg, ift);
926 if (!nl_ftypes)
927 goto nla_put_failure;
928 i = 0;
929 stypes = mgmt_stypes[ift].tx;
930 while (stypes) {
931 if (stypes & 1)
932 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
933 (i << 4) | IEEE80211_FTYPE_MGMT);
934 stypes >>= 1;
935 i++;
936 }
937 nla_nest_end(msg, nl_ftypes);
938 }
939
74b70a4e
JB		 940 nla_nest_end(msg, nl_ifs);
941
2e161f78
JB		 942 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
943 if (!nl_ifs)
944 goto nla_put_failure;
945
946 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
947 nl_ftypes = nla_nest_start(msg, ift);
948 if (!nl_ftypes)
949 goto nla_put_failure;
950 i = 0;
951 stypes = mgmt_stypes[ift].rx;
952 while (stypes) {
953 if (stypes & 1)
954 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
955 (i << 4) | IEEE80211_FTYPE_MGMT);
956 stypes >>= 1;
957 i++;
958 }
959 nla_nest_end(msg, nl_ftypes);
960 }
961 nla_nest_end(msg, nl_ifs);
962 }
963
ff1b6e69
JB		 964 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
965 struct nlattr *nl_wowlan;
966
967 nl_wowlan = nla_nest_start(msg,
968 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
969 if (!nl_wowlan)
970 goto nla_put_failure;
971
972 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
973 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
974 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
975 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
976 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
977 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 978 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
979 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
980 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
981 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
982 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
983 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
984 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
985 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
986 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
987 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 988 if (dev->wiphy.wowlan.n_patterns) {
989 struct nl80211_wowlan_pattern_support pat = {
990 .max_patterns = dev->wiphy.wowlan.n_patterns,
991 .min_pattern_len =
992 dev->wiphy.wowlan.pattern_min_len,
993 .max_pattern_len =
994 dev->wiphy.wowlan.pattern_max_len,
995 };
996 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
997 sizeof(pat), &pat);
998 }
999
1000 nla_nest_end(msg, nl_wowlan);
1001 }
1002
7527a782
JB		 1003 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1004 dev->wiphy.software_iftypes))
1005 goto nla_put_failure;
1006
1007 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1008 goto nla_put_failure;
1009
562a7480
JB		 1010 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1011 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1012 dev->wiphy.ap_sme_capa);
1013
55682965
JB		 1014 return genlmsg_end(msg, hdr);
1015
1016 nla_put_failure:
bc3ed28c
TG		 1017 genlmsg_cancel(msg, hdr);
1018 return -EMSGSIZE;
55682965
JB		 1019}
1020
1021static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1022{
1023 int idx = 0;
1024 int start = cb->args[0];
1025 struct cfg80211_registered_device *dev;
1026
a1794390 1027 mutex_lock(&cfg80211_mutex);
79c97e97 1028 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1029 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1030 continue;
b4637271 1031 if (++idx <= start)
55682965
JB		 1032 continue;
1033 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1034 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1035 dev) < 0) {
1036 idx--;
55682965 1037 break;
b4637271 1038 }
55682965 1039 }
a1794390 1040 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1041
1042 cb->args[0] = idx;
1043
1044 return skb->len;
1045}
1046
1047static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1048{
1049 struct sk_buff *msg;
4c476991 1050 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1051
fd2120ca 1052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1053 if (!msg)
4c476991 1054 return -ENOMEM;
55682965 1055
4c476991
JB		 1056 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1057 nlmsg_free(msg);
1058 return -ENOBUFS;
1059 }
55682965 1060
134e6375 1061 return genlmsg_reply(msg, info);
55682965
JB		 1062}
1063
31888487
JM		 1064static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1065 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1066 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1067 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1068 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1069 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1070};
1071
1072static int parse_txq_params(struct nlattr *tb[],
1073 struct ieee80211_txq_params *txq_params)
1074{
1075 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1076 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1077 !tb[NL80211_TXQ_ATTR_AIFS])
1078 return -EINVAL;
1079
1080 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1081 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1082 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1083 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1084 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1085
1086 return 0;
1087}
1088
f444de05
JB		 1089static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1090{
1091 /*
1092 * You can only set the channel explicitly for AP, mesh
1093 * and WDS type interfaces; all others have their channel
1094 * managed via their respective "establish a connection"
1095 * command (connect, join, ...)
1096 *
1097 * Monitors are special as they are normally slaved to
1098 * whatever else is going on, so they behave as though
1099 * you tried setting the wiphy channel itself.
1100 */
1101 return !wdev ||
1102 wdev->iftype == NL80211_IFTYPE_AP ||
1103 wdev->iftype == NL80211_IFTYPE_WDS ||
1104 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1105 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1106 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1107}
1108
1109static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1110 struct wireless_dev *wdev,
1111 struct genl_info *info)
1112{
1113 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1114 u32 freq;
1115 int result;
1116
1117 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1118 return -EINVAL;
1119
1120 if (!nl80211_can_set_dev_channel(wdev))
1121 return -EOPNOTSUPP;
1122
1123 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1124 channel_type = nla_get_u32(info->attrs[
1125 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1126 if (channel_type != NL80211_CHAN_NO_HT &&
1127 channel_type != NL80211_CHAN_HT20 &&
1128 channel_type != NL80211_CHAN_HT40PLUS &&
1129 channel_type != NL80211_CHAN_HT40MINUS)
1130 return -EINVAL;
1131 }
1132
1133 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1134
1135 mutex_lock(&rdev->devlist_mtx);
1136 if (wdev) {
1137 wdev_lock(wdev);
1138 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1139 wdev_unlock(wdev);
1140 } else {
1141 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1142 }
1143 mutex_unlock(&rdev->devlist_mtx);
1144
1145 return result;
1146}
1147
1148static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1149{
4c476991
JB		 1150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1151 struct net_device *netdev = info->user_ptr[1];
f444de05 1152
4c476991 1153 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1154}
1155
e8347eba
BJ		 1156static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1157{
43b19952
JB		 1158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1159 struct net_device *dev = info->user_ptr[1];
1160 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1161 const u8 *bssid;
e8347eba
BJ		 1162
1163 if (!info->attrs[NL80211_ATTR_MAC])
1164 return -EINVAL;
1165
43b19952
JB		 1166 if (netif_running(dev))
1167 return -EBUSY;
e8347eba 1168
43b19952
JB		 1169 if (!rdev->ops->set_wds_peer)
1170 return -EOPNOTSUPP;
e8347eba 1171
43b19952
JB		 1172 if (wdev->iftype != NL80211_IFTYPE_WDS)
1173 return -EOPNOTSUPP;
e8347eba
BJ		 1174
1175 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1176 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1177}
1178
1179
55682965
JB		 1180static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1181{
1182 struct cfg80211_registered_device *rdev;
f444de05
JB		 1183 struct net_device *netdev = NULL;
1184 struct wireless_dev *wdev;
a1e567c8 1185 int result = 0, rem_txq_params = 0;
31888487 1186 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1187 u32 changed;
1188 u8 retry_short = 0, retry_long = 0;
1189 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1190 u8 coverage_class = 0;
55682965 1191
f444de05
JB		 1192 /*
1193 * Try to find the wiphy and netdev. Normally this
1194 * function shouldn't need the netdev, but this is
1195 * done for backward compatibility -- previously
1196 * setting the channel was done per wiphy, but now
1197 * it is per netdev. Previous userland like hostapd
1198 * also passed a netdev to set_wiphy, so that it is
1199 * possible to let that go to the right netdev!
1200 */
4bbf4d56
JB		 1201 mutex_lock(&cfg80211_mutex);
1202
f444de05
JB		 1203 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1204 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1205
1206 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1207 if (netdev && netdev->ieee80211_ptr) {
1208 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1209 mutex_lock(&rdev->mtx);
1210 } else
1211 netdev = NULL;
4bbf4d56
JB		 1212 }
1213
f444de05
JB		 1214 if (!netdev) {
1215 rdev = __cfg80211_rdev_from_info(info);
1216 if (IS_ERR(rdev)) {
1217 mutex_unlock(&cfg80211_mutex);
4c476991 1218 return PTR_ERR(rdev);
f444de05
JB		 1219 }
1220 wdev = NULL;
1221 netdev = NULL;
1222 result = 0;
1223
1224 mutex_lock(&rdev->mtx);
1225 } else if (netif_running(netdev) &&
1226 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1227 wdev = netdev->ieee80211_ptr;
1228 else
1229 wdev = NULL;
1230
1231 /*
1232 * end workaround code, by now the rdev is available
1233 * and locked, and wdev may or may not be NULL.
1234 */
4bbf4d56
JB		 1235
1236 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1237 result = cfg80211_dev_rename(
1238 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1239
1240 mutex_unlock(&cfg80211_mutex);
1241
1242 if (result)
1243 goto bad_res;
31888487
JM		 1244
1245 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1246 struct ieee80211_txq_params txq_params;
1247 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1248
1249 if (!rdev->ops->set_txq_params) {
1250 result = -EOPNOTSUPP;
1251 goto bad_res;
1252 }
1253
f70f01c2
EP		 1254 if (!netdev) {
1255 result = -EINVAL;
1256 goto bad_res;
1257 }
1258
133a3ff2
JB		 1259 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1260 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1261 result = -EINVAL;
1262 goto bad_res;
1263 }
1264
31888487
JM		 1265 nla_for_each_nested(nl_txq_params,
1266 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1267 rem_txq_params) {
1268 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1269 nla_data(nl_txq_params),
1270 nla_len(nl_txq_params),
1271 txq_params_policy);
1272 result = parse_txq_params(tb, &txq_params);
1273 if (result)
1274 goto bad_res;
1275
1276 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1277 netdev,
31888487
JM		 1278 &txq_params);
1279 if (result)
1280 goto bad_res;
1281 }
1282 }
55682965 1283
72bdcf34 1284 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1285 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1286 if (result)
1287 goto bad_res;
1288 }
1289
98d2ff8b
JO		 1290 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1291 enum nl80211_tx_power_setting type;
1292 int idx, mbm = 0;
1293
1294 if (!rdev->ops->set_tx_power) {
60ea385f 1295 result = -EOPNOTSUPP;
98d2ff8b
JO		 1296 goto bad_res;
1297 }
1298
1299 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1300 type = nla_get_u32(info->attrs[idx]);
1301
1302 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1303 (type != NL80211_TX_POWER_AUTOMATIC)) {
1304 result = -EINVAL;
1305 goto bad_res;
1306 }
1307
1308 if (type != NL80211_TX_POWER_AUTOMATIC) {
1309 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1310 mbm = nla_get_u32(info->attrs[idx]);
1311 }
1312
1313 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1314 if (result)
1315 goto bad_res;
1316 }
1317
afe0cbf8
BR		 1318 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1319 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1320 u32 tx_ant, rx_ant;
7f531e03
BR		 1321 if ((!rdev->wiphy.available_antennas_tx &&
1322 !rdev->wiphy.available_antennas_rx) ||
1323 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1324 result = -EOPNOTSUPP;
1325 goto bad_res;
1326 }
1327
1328 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1329 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1330
a7ffac95 1331 /* reject antenna configurations which don't match the
7f531e03
BR		 1332 * available antenna masks, except for the "all" mask */
1333 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1334 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1335 result = -EINVAL;
1336 goto bad_res;
1337 }
1338
7f531e03
BR		 1339 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1340 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1341
afe0cbf8
BR		 1342 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1343 if (result)
1344 goto bad_res;
1345 }
1346
b9a5f8ca
JM		 1347 changed = 0;
1348
1349 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1350 retry_short = nla_get_u8(
1351 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1352 if (retry_short == 0) {
1353 result = -EINVAL;
1354 goto bad_res;
1355 }
1356 changed |= WIPHY_PARAM_RETRY_SHORT;
1357 }
1358
1359 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1360 retry_long = nla_get_u8(
1361 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1362 if (retry_long == 0) {
1363 result = -EINVAL;
1364 goto bad_res;
1365 }
1366 changed |= WIPHY_PARAM_RETRY_LONG;
1367 }
1368
1369 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1370 frag_threshold = nla_get_u32(
1371 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1372 if (frag_threshold < 256) {
1373 result = -EINVAL;
1374 goto bad_res;
1375 }
1376 if (frag_threshold != (u32) -1) {
1377 /*
1378 * Fragments (apart from the last one) are required to
1379 * have even length. Make the fragmentation code
1380 * simpler by stripping LSB should someone try to use
1381 * odd threshold value.
1382 */
1383 frag_threshold &= ~0x1;
1384 }
1385 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1386 }
1387
1388 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1389 rts_threshold = nla_get_u32(
1390 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1391 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1392 }
1393
81077e82
LT		 1394 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1395 coverage_class = nla_get_u8(
1396 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1397 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1398 }
1399
b9a5f8ca
JM		 1400 if (changed) {
1401 u8 old_retry_short, old_retry_long;
1402 u32 old_frag_threshold, old_rts_threshold;
81077e82 1403 u8 old_coverage_class;
b9a5f8ca
JM		 1404
1405 if (!rdev->ops->set_wiphy_params) {
1406 result = -EOPNOTSUPP;
1407 goto bad_res;
1408 }
1409
1410 old_retry_short = rdev->wiphy.retry_short;
1411 old_retry_long = rdev->wiphy.retry_long;
1412 old_frag_threshold = rdev->wiphy.frag_threshold;
1413 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1414 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1415
1416 if (changed & WIPHY_PARAM_RETRY_SHORT)
1417 rdev->wiphy.retry_short = retry_short;
1418 if (changed & WIPHY_PARAM_RETRY_LONG)
1419 rdev->wiphy.retry_long = retry_long;
1420 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1421 rdev->wiphy.frag_threshold = frag_threshold;
1422 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1423 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1424 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1425 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1426
1427 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1428 if (result) {
1429 rdev->wiphy.retry_short = old_retry_short;
1430 rdev->wiphy.retry_long = old_retry_long;
1431 rdev->wiphy.frag_threshold = old_frag_threshold;
1432 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1433 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1434 }
1435 }
72bdcf34 1436
306d6112 1437 bad_res:
4bbf4d56 1438 mutex_unlock(&rdev->mtx);
f444de05
JB		 1439 if (netdev)
1440 dev_put(netdev);
55682965
JB		 1441 return result;
1442}
1443
1444
1445static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1446 struct cfg80211_registered_device *rdev,
55682965
JB		 1447 struct net_device *dev)
1448{
1449 void *hdr;
1450
1451 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1452 if (!hdr)
1453 return -1;
1454
1455 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1456 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1457 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1458 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1459
1460 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1461 rdev->devlist_generation ^
1462 (cfg80211_rdev_list_generation << 2));
1463
55682965
JB		 1464 return genlmsg_end(msg, hdr);
1465
1466 nla_put_failure:
bc3ed28c
TG		 1467 genlmsg_cancel(msg, hdr);
1468 return -EMSGSIZE;
55682965
JB		 1469}
1470
1471static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1472{
1473 int wp_idx = 0;
1474 int if_idx = 0;
1475 int wp_start = cb->args[0];
1476 int if_start = cb->args[1];
f5ea9120 1477 struct cfg80211_registered_device *rdev;
55682965
JB		 1478 struct wireless_dev *wdev;
1479
a1794390 1480 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1481 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1482 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1483 continue;
bba95fef
JB		 1484 if (wp_idx < wp_start) {
1485 wp_idx++;
55682965 1486 continue;
bba95fef 1487 }
55682965
JB		 1488 if_idx = 0;
1489
f5ea9120
JB		 1490 mutex_lock(&rdev->devlist_mtx);
1491 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1492 if (if_idx < if_start) {
1493 if_idx++;
55682965 1494 continue;
bba95fef 1495 }
55682965
JB		 1496 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1497 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1498 rdev, wdev->netdev) < 0) {
1499 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1500 goto out;
1501 }
1502 if_idx++;
55682965 1503 }
f5ea9120 1504 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1505
1506 wp_idx++;
55682965 1507 }
bba95fef 1508 out:
a1794390 1509 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1510
1511 cb->args[0] = wp_idx;
1512 cb->args[1] = if_idx;
1513
1514 return skb->len;
1515}
1516
1517static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1518{
1519 struct sk_buff *msg;
4c476991
JB		 1520 struct cfg80211_registered_device *dev = info->user_ptr[0];
1521 struct net_device *netdev = info->user_ptr[1];
55682965 1522
fd2120ca 1523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1524 if (!msg)
4c476991 1525 return -ENOMEM;
55682965 1526
d726405a 1527 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1528 dev, netdev) < 0) {
1529 nlmsg_free(msg);
1530 return -ENOBUFS;
1531 }
55682965 1532
134e6375 1533 return genlmsg_reply(msg, info);
55682965
JB		 1534}
1535
66f7ac50
MW		 1536static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1537 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1538 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1539 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1540 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1541 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1542};
1543
1544static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1545{
1546 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1547 int flag;
1548
1549 *mntrflags = 0;
1550
1551 if (!nla)
1552 return -EINVAL;
1553
1554 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1555 nla, mntr_flags_policy))
1556 return -EINVAL;
1557
1558 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1559 if (flags[flag])
1560 *mntrflags |= (1<<flag);
1561
1562 return 0;
1563}
1564
9bc383de 1565static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1566 struct net_device *netdev, u8 use_4addr,
1567 enum nl80211_iftype iftype)
9bc383de 1568{
ad4bb6f8 1569 if (!use_4addr) {
f350a0a8 1570 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1571 return -EBUSY;
9bc383de 1572 return 0;
ad4bb6f8 1573 }
9bc383de
JB		 1574
1575 switch (iftype) {
1576 case NL80211_IFTYPE_AP_VLAN:
1577 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1578 return 0;
1579 break;
1580 case NL80211_IFTYPE_STATION:
1581 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1582 return 0;
1583 break;
1584 default:
1585 break;
1586 }
1587
1588 return -EOPNOTSUPP;
1589}
1590
55682965
JB		 1591static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1592{
4c476991 1593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1594 struct vif_params params;
e36d56b6 1595 int err;
04a773ad 1596 enum nl80211_iftype otype, ntype;
4c476991 1597 struct net_device *dev = info->user_ptr[1];
92ffe055 1598 u32 _flags, *flags = NULL;
ac7f9cfa 1599 bool change = false;
55682965 1600
2ec600d6
LCC		 1601 memset(&params, 0, sizeof(params));
1602
04a773ad 1603 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1604
723b038d 1605 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1606 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1607 if (otype != ntype)
ac7f9cfa 1608 change = true;
4c476991
JB		 1609 if (ntype > NL80211_IFTYPE_MAX)
1610 return -EINVAL;
723b038d
JB		 1611 }
1612
92ffe055 1613 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1614 struct wireless_dev *wdev = dev->ieee80211_ptr;
1615
4c476991
JB		 1616 if (ntype != NL80211_IFTYPE_MESH_POINT)
1617 return -EINVAL;
29cbe68c
JB		 1618 if (netif_running(dev))
1619 return -EBUSY;
1620
1621 wdev_lock(wdev);
1622 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1623 IEEE80211_MAX_MESH_ID_LEN);
1624 wdev->mesh_id_up_len =
1625 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1626 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1627 wdev->mesh_id_up_len);
1628 wdev_unlock(wdev);
2ec600d6
LCC		 1629 }
1630
8b787643
FF		 1631 if (info->attrs[NL80211_ATTR_4ADDR]) {
1632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1633 change = true;
ad4bb6f8 1634 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1635 if (err)
4c476991 1636 return err;
8b787643
FF		 1637 } else {
1638 params.use_4addr = -1;
1639 }
1640
92ffe055 1641 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1642 if (ntype != NL80211_IFTYPE_MONITOR)
1643 return -EINVAL;
92ffe055
JB		 1644 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1645 &_flags);
ac7f9cfa 1646 if (err)
4c476991 1647 return err;
ac7f9cfa
JB		 1648
1649 flags = &_flags;
1650 change = true;
92ffe055 1651 }
3b85875a 1652
ac7f9cfa 1653 if (change)
3d54d255 1654 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1655 else
1656 err = 0;
60719ffd 1657
9bc383de
JB		 1658 if (!err && params.use_4addr != -1)
1659 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1660
55682965
JB		 1661 return err;
1662}
1663
1664static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1665{
4c476991 1666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1667 struct vif_params params;
f9e10ce4 1668 struct net_device *dev;
55682965
JB		 1669 int err;
1670 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1671 u32 flags;
55682965 1672
2ec600d6
LCC		 1673 memset(&params, 0, sizeof(params));
1674
55682965
JB		 1675 if (!info->attrs[NL80211_ATTR_IFNAME])
1676 return -EINVAL;
1677
1678 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1679 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1680 if (type > NL80211_IFTYPE_MAX)
1681 return -EINVAL;
1682 }
1683
79c97e97 1684 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1685 !(rdev->wiphy.interface_modes & (1 << type)))
1686 return -EOPNOTSUPP;
55682965 1687
9bc383de 1688 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1689 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1690 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1691 if (err)
4c476991 1692 return err;
9bc383de 1693 }
8b787643 1694
66f7ac50
MW		 1695 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1696 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1697 &flags);
f9e10ce4 1698 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1699 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1700 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1701 if (IS_ERR(dev))
1702 return PTR_ERR(dev);
2ec600d6 1703
29cbe68c
JB		 1704 if (type == NL80211_IFTYPE_MESH_POINT &&
1705 info->attrs[NL80211_ATTR_MESH_ID]) {
1706 struct wireless_dev *wdev = dev->ieee80211_ptr;
1707
1708 wdev_lock(wdev);
1709 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1710 IEEE80211_MAX_MESH_ID_LEN);
1711 wdev->mesh_id_up_len =
1712 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1713 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1714 wdev->mesh_id_up_len);
1715 wdev_unlock(wdev);
1716 }
1717
f9e10ce4 1718 return 0;
55682965
JB		 1719}
1720
1721static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1722{
4c476991
JB		 1723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1724 struct net_device *dev = info->user_ptr[1];
55682965 1725
4c476991
JB		 1726 if (!rdev->ops->del_virtual_intf)
1727 return -EOPNOTSUPP;
55682965 1728
4c476991 1729 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1730}
1731
41ade00f
JB		 1732struct get_key_cookie {
1733 struct sk_buff *msg;
1734 int error;
b9454e83 1735 int idx;
41ade00f
JB		 1736};
1737
1738static void get_key_callback(void *c, struct key_params *params)
1739{
b9454e83 1740 struct nlattr *key;
41ade00f
JB		 1741 struct get_key_cookie *cookie = c;
1742
1743 if (params->key)
1744 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1745 params->key_len, params->key);
1746
1747 if (params->seq)
1748 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1749 params->seq_len, params->seq);
1750
1751 if (params->cipher)
1752 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1753 params->cipher);
1754
b9454e83
JB		 1755 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1756 if (!key)
1757 goto nla_put_failure;
1758
1759 if (params->key)
1760 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1761 params->key_len, params->key);
1762
1763 if (params->seq)
1764 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1765 params->seq_len, params->seq);
1766
1767 if (params->cipher)
1768 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1769 params->cipher);
1770
1771 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1772
1773 nla_nest_end(cookie->msg, key);
1774
41ade00f
JB		 1775 return;
1776 nla_put_failure:
1777 cookie->error = 1;
1778}
1779
1780static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1781{
4c476991 1782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1783 int err;
4c476991 1784 struct net_device *dev = info->user_ptr[1];
41ade00f 1785 u8 key_idx = 0;
e31b8213
JB		 1786 const u8 *mac_addr = NULL;
1787 bool pairwise;
41ade00f
JB		 1788 struct get_key_cookie cookie = {
1789 .error = 0,
1790 };
1791 void *hdr;
1792 struct sk_buff *msg;
1793
1794 if (info->attrs[NL80211_ATTR_KEY_IDX])
1795 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1796
3cfcf6ac 1797 if (key_idx > 5)
41ade00f
JB		 1798 return -EINVAL;
1799
1800 if (info->attrs[NL80211_ATTR_MAC])
1801 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1802
e31b8213
JB		 1803 pairwise = !!mac_addr;
1804 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1805 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1806 if (kt >= NUM_NL80211_KEYTYPES)
1807 return -EINVAL;
1808 if (kt != NL80211_KEYTYPE_GROUP &&
1809 kt != NL80211_KEYTYPE_PAIRWISE)
1810 return -EINVAL;
1811 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1812 }
1813
4c476991
JB		 1814 if (!rdev->ops->get_key)
1815 return -EOPNOTSUPP;
41ade00f 1816
fd2120ca 1817 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1818 if (!msg)
1819 return -ENOMEM;
41ade00f
JB		 1820
1821 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1822 NL80211_CMD_NEW_KEY);
4c476991
JB		 1823 if (IS_ERR(hdr))
1824 return PTR_ERR(hdr);
41ade00f
JB		 1825
1826 cookie.msg = msg;
b9454e83 1827 cookie.idx = key_idx;
41ade00f
JB		 1828
1829 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1830 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1831 if (mac_addr)
1832 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1833
e31b8213
JB		 1834 if (pairwise && mac_addr &&
1835 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1836 return -ENOENT;
1837
1838 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1839 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1840
1841 if (err)
6c95e2a2 1842 goto free_msg;
41ade00f
JB		 1843
1844 if (cookie.error)
1845 goto nla_put_failure;
1846
1847 genlmsg_end(msg, hdr);
4c476991 1848 return genlmsg_reply(msg, info);
41ade00f
JB		 1849
1850 nla_put_failure:
1851 err = -ENOBUFS;
6c95e2a2 1852 free_msg:
41ade00f 1853 nlmsg_free(msg);
41ade00f
JB		 1854 return err;
1855}
1856
1857static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1858{
4c476991 1859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1860 struct key_parse key;
41ade00f 1861 int err;
4c476991 1862 struct net_device *dev = info->user_ptr[1];
41ade00f 1863
b9454e83
JB		 1864 err = nl80211_parse_key(info, &key);
1865 if (err)
1866 return err;
41ade00f 1867
b9454e83 1868 if (key.idx < 0)
41ade00f
JB		 1869 return -EINVAL;
1870
b9454e83
JB		 1871 /* only support setting default key */
1872 if (!key.def && !key.defmgmt)
41ade00f
JB		 1873 return -EINVAL;
1874
dbd2fd65 1875 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1876
dbd2fd65
JB		 1877 if (key.def) {
1878 if (!rdev->ops->set_default_key) {
1879 err = -EOPNOTSUPP;
1880 goto out;
1881 }
41ade00f 1882
dbd2fd65
JB		 1883 err = nl80211_key_allowed(dev->ieee80211_ptr);
1884 if (err)
1885 goto out;
1886
dbd2fd65
JB		 1887 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1888 key.def_uni, key.def_multi);
1889
1890 if (err)
1891 goto out;
fffd0934 1892
3d23e349 1893#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1894 dev->ieee80211_ptr->wext.default_key = key.idx;
1895#endif
1896 } else {
1897 if (key.def_uni || !key.def_multi) {
1898 err = -EINVAL;
1899 goto out;
1900 }
1901
1902 if (!rdev->ops->set_default_mgmt_key) {
1903 err = -EOPNOTSUPP;
1904 goto out;
1905 }
1906
1907 err = nl80211_key_allowed(dev->ieee80211_ptr);
1908 if (err)
1909 goto out;
1910
1911 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1912 dev, key.idx);
1913 if (err)
1914 goto out;
1915
1916#ifdef CONFIG_CFG80211_WEXT
1917 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1918#endif
dbd2fd65
JB		 1919 }
1920
1921 out:
fffd0934 1922 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1923
41ade00f
JB		 1924 return err;
1925}
1926
1927static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1928{
4c476991 1929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1930 int err;
4c476991 1931 struct net_device *dev = info->user_ptr[1];
b9454e83 1932 struct key_parse key;
e31b8213 1933 const u8 *mac_addr = NULL;
41ade00f 1934
b9454e83
JB		 1935 err = nl80211_parse_key(info, &key);
1936 if (err)
1937 return err;
41ade00f 1938
b9454e83 1939 if (!key.p.key)
41ade00f
JB		 1940 return -EINVAL;
1941
41ade00f
JB		 1942 if (info->attrs[NL80211_ATTR_MAC])
1943 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1944
e31b8213
JB		 1945 if (key.type == -1) {
1946 if (mac_addr)
1947 key.type = NL80211_KEYTYPE_PAIRWISE;
1948 else
1949 key.type = NL80211_KEYTYPE_GROUP;
1950 }
1951
1952 /* for now */
1953 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1954 key.type != NL80211_KEYTYPE_GROUP)
1955 return -EINVAL;
1956
4c476991
JB		 1957 if (!rdev->ops->add_key)
1958 return -EOPNOTSUPP;
25e47c18 1959
e31b8213
JB		 1960 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1961 key.type == NL80211_KEYTYPE_PAIRWISE,
1962 mac_addr))
4c476991 1963 return -EINVAL;
41ade00f 1964
fffd0934
JB		 1965 wdev_lock(dev->ieee80211_ptr);
1966 err = nl80211_key_allowed(dev->ieee80211_ptr);
1967 if (!err)
1968 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1969 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1970 mac_addr, &key.p);
1971 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1972
41ade00f
JB		 1973 return err;
1974}
1975
1976static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1977{
4c476991 1978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1979 int err;
4c476991 1980 struct net_device *dev = info->user_ptr[1];
41ade00f 1981 u8 *mac_addr = NULL;
b9454e83 1982 struct key_parse key;
41ade00f 1983
b9454e83
JB		 1984 err = nl80211_parse_key(info, &key);
1985 if (err)
1986 return err;
41ade00f
JB		 1987
1988 if (info->attrs[NL80211_ATTR_MAC])
1989 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1990
e31b8213
JB		 1991 if (key.type == -1) {
1992 if (mac_addr)
1993 key.type = NL80211_KEYTYPE_PAIRWISE;
1994 else
1995 key.type = NL80211_KEYTYPE_GROUP;
1996 }
1997
1998 /* for now */
1999 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2000 key.type != NL80211_KEYTYPE_GROUP)
2001 return -EINVAL;
2002
4c476991
JB		 2003 if (!rdev->ops->del_key)
2004 return -EOPNOTSUPP;
41ade00f 2005
fffd0934
JB		 2006 wdev_lock(dev->ieee80211_ptr);
2007 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2008
2009 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2010 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2011 err = -ENOENT;
2012
fffd0934 2013 if (!err)
e31b8213
JB		 2014 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2015 key.type == NL80211_KEYTYPE_PAIRWISE,
2016 mac_addr);
41ade00f 2017
3d23e349 2018#ifdef CONFIG_CFG80211_WEXT
08645126 2019 if (!err) {
b9454e83 2020 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2021 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2022 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2023 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2024 }
2025#endif
fffd0934 2026 wdev_unlock(dev->ieee80211_ptr);
08645126 2027
41ade00f
JB		 2028 return err;
2029}
2030
ed1b6cc7
JB		 2031static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2032{
2033 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2034 struct beacon_parameters *info);
4c476991
JB		 2035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2036 struct net_device *dev = info->user_ptr[1];
56d1893d 2037 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2038 struct beacon_parameters params;
56d1893d 2039 int haveinfo = 0, err;
ed1b6cc7 2040
9946ecfb
JM		 2041 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2042 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2043 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2044 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2045 return -EINVAL;
2046
074ac8df 2047 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2048 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2049 return -EOPNOTSUPP;
eec60b03 2050
56d1893d
JB		 2051 memset(&params, 0, sizeof(params));
2052
ed1b6cc7
JB		 2053 switch (info->genlhdr->cmd) {
2054 case NL80211_CMD_NEW_BEACON:
2055 /* these are required for NEW_BEACON */
2056 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2057 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2058 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2059 return -EINVAL;
ed1b6cc7 2060
56d1893d
JB		 2061 params.interval =
2062 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2063 params.dtim_period =
2064 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2065
2066 err = cfg80211_validate_beacon_int(rdev, params.interval);
2067 if (err)
2068 return err;
2069
32e9de84
JM		 2070 /*
2071 * In theory, some of these attributes could be required for
2072 * NEW_BEACON, but since they were not used when the command was
2073 * originally added, keep them optional for old user space
2074 * programs to work with drivers that do not need the additional
2075 * information.
2076 */
2077 if (info->attrs[NL80211_ATTR_SSID]) {
2078 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2079 params.ssid_len =
2080 nla_len(info->attrs[NL80211_ATTR_SSID]);
2081 if (params.ssid_len == 0 ||
2082 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2083 return -EINVAL;
2084 }
2085
2086 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2087 params.hidden_ssid = nla_get_u32(
2088 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2089 if (params.hidden_ssid !=
2090 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2091 params.hidden_ssid !=
2092 NL80211_HIDDEN_SSID_ZERO_LEN &&
2093 params.hidden_ssid !=
2094 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2095 return -EINVAL;
2096 }
2097
5fb628e9
JM		 2098 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2099
2100 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2101 params.auth_type = nla_get_u32(
2102 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2103 if (!nl80211_valid_auth_type(params.auth_type))
2104 return -EINVAL;
2105 } else
2106 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2107
2108 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2109 NL80211_MAX_NR_CIPHER_SUITES);
2110 if (err)
2111 return err;
2112
79c97e97 2113 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2114 break;
2115 case NL80211_CMD_SET_BEACON:
79c97e97 2116 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2117 break;
2118 default:
2119 WARN_ON(1);
4c476991 2120 return -EOPNOTSUPP;
ed1b6cc7
JB		 2121 }
2122
4c476991
JB		 2123 if (!call)
2124 return -EOPNOTSUPP;
ed1b6cc7 2125
ed1b6cc7
JB		 2126 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2127 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2128 params.head_len =
2129 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2130 haveinfo = 1;
2131 }
2132
2133 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2134 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2135 params.tail_len =
2136 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2137 haveinfo = 1;
2138 }
2139
4c476991
JB		 2140 if (!haveinfo)
2141 return -EINVAL;
3b85875a 2142
9946ecfb
JM		 2143 if (info->attrs[NL80211_ATTR_IE]) {
2144 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2145 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2146 }
2147
2148 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2149 params.proberesp_ies =
2150 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2151 params.proberesp_ies_len =
2152 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2153 }
2154
2155 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2156 params.assocresp_ies =
2157 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2158 params.assocresp_ies_len =
2159 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2160 }
2161
56d1893d
JB		 2162 err = call(&rdev->wiphy, dev, &params);
2163 if (!err && params.interval)
2164 wdev->beacon_interval = params.interval;
2165 return err;
ed1b6cc7
JB		 2166}
2167
2168static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2169{
4c476991
JB		 2170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2171 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2172 struct wireless_dev *wdev = dev->ieee80211_ptr;
2173 int err;
ed1b6cc7 2174
4c476991
JB		 2175 if (!rdev->ops->del_beacon)
2176 return -EOPNOTSUPP;
ed1b6cc7 2177
074ac8df 2178 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2180 return -EOPNOTSUPP;
3b85875a 2181
56d1893d
JB		 2182 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2183 if (!err)
2184 wdev->beacon_interval = 0;
2185 return err;
ed1b6cc7
JB		 2186}
2187
5727ef1b
JB		 2188static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2189 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2190 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2191 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2192 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2193 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2194};
2195
eccb8e8f
JB		 2196static int parse_station_flags(struct genl_info *info,
2197 struct station_parameters *params)
5727ef1b
JB		 2198{
2199 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2200 struct nlattr *nla;
5727ef1b
JB		 2201 int flag;
2202
eccb8e8f
JB		 2203 /*
2204 * Try parsing the new attribute first so userspace
2205 * can specify both for older kernels.
2206 */
2207 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2208 if (nla) {
2209 struct nl80211_sta_flag_update *sta_flags;
2210
2211 sta_flags = nla_data(nla);
2212 params->sta_flags_mask = sta_flags->mask;
2213 params->sta_flags_set = sta_flags->set;
2214 if ((params->sta_flags_mask |
2215 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2216 return -EINVAL;
2217 return 0;
2218 }
2219
2220 /* if present, parse the old attribute */
5727ef1b 2221
eccb8e8f 2222 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2223 if (!nla)
2224 return 0;
2225
2226 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2227 nla, sta_flags_policy))
2228 return -EINVAL;
2229
eccb8e8f
JB		 2230 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2231 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2232
2233 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2234 if (flags[flag])
eccb8e8f 2235 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2236
2237 return 0;
2238}
2239
c8dcfd8a
FF		 2240static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2241 int attr)
2242{
2243 struct nlattr *rate;
2244 u16 bitrate;
2245
2246 rate = nla_nest_start(msg, attr);
2247 if (!rate)
2248 goto nla_put_failure;
2249
2250 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2251 bitrate = cfg80211_calculate_bitrate(info);
2252 if (bitrate > 0)
2253 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2254
2255 if (info->flags & RATE_INFO_FLAGS_MCS)
2256 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2257 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2258 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2259 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2260 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2261
2262 nla_nest_end(msg, rate);
2263 return true;
2264
2265nla_put_failure:
2266 return false;
2267}
2268
fd5b74dc
JB		 2269static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2270 int flags, struct net_device *dev,
98b62183 2271 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2272{
2273 void *hdr;
f4263c98 2274 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2275
2276 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2277 if (!hdr)
2278 return -1;
2279
2280 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2281 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2282
f5ea9120
JB		 2283 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2284
2ec600d6
LCC		 2285 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2286 if (!sinfoattr)
fd5b74dc 2287 goto nla_put_failure;
ebe27c91
MSS		 2288 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2289 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2290 sinfo->connected_time);
2ec600d6
LCC		 2291 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2292 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2293 sinfo->inactive_time);
2294 if (sinfo->filled & STATION_INFO_RX_BYTES)
2295 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2296 sinfo->rx_bytes);
2297 if (sinfo->filled & STATION_INFO_TX_BYTES)
2298 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2299 sinfo->tx_bytes);
2300 if (sinfo->filled & STATION_INFO_LLID)
2301 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2302 sinfo->llid);
2303 if (sinfo->filled & STATION_INFO_PLID)
2304 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2305 sinfo->plid);
2306 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2307 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2308 sinfo->plink_state);
420e7fab
HR		 2309 if (sinfo->filled & STATION_INFO_SIGNAL)
2310 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2311 sinfo->signal);
541a45a1
BR		 2312 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2313 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2314 sinfo->signal_avg);
420e7fab 2315 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2316 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2317 NL80211_STA_INFO_TX_BITRATE))
2318 goto nla_put_failure;
2319 }
2320 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2321 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2322 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2323 goto nla_put_failure;
420e7fab 2324 }
98c8a60a
JM		 2325 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2326 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2327 sinfo->rx_packets);
2328 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2329 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2330 sinfo->tx_packets);
b206b4ef
BR		 2331 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2332 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2333 sinfo->tx_retries);
2334 if (sinfo->filled & STATION_INFO_TX_FAILED)
2335 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2336 sinfo->tx_failed);
f4263c98
PS		 2337 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2338 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2339 if (!bss_param)
2340 goto nla_put_failure;
2341
2342 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2343 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2344 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2345 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2346 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2347 NLA_PUT_FLAG(msg,
2348 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2349 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2350 sinfo->bss_param.dtim_period);
2351 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2352 sinfo->bss_param.beacon_interval);
2353
2354 nla_nest_end(msg, bss_param);
2355 }
bb6e753e
HS		 2356 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2357 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2358 sizeof(struct nl80211_sta_flag_update),
2359 &sinfo->sta_flags);
2ec600d6 2360 nla_nest_end(msg, sinfoattr);
fd5b74dc 2361
040bdf71 2362 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2363 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2364 sinfo->assoc_req_ies);
2365
fd5b74dc
JB		 2366 return genlmsg_end(msg, hdr);
2367
2368 nla_put_failure:
bc3ed28c
TG		 2369 genlmsg_cancel(msg, hdr);
2370 return -EMSGSIZE;
fd5b74dc
JB		 2371}
2372
2ec600d6 2373static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2374 struct netlink_callback *cb)
2ec600d6 2375{
2ec600d6
LCC		 2376 struct station_info sinfo;
2377 struct cfg80211_registered_device *dev;
bba95fef 2378 struct net_device *netdev;
2ec600d6 2379 u8 mac_addr[ETH_ALEN];
bba95fef 2380 int sta_idx = cb->args[1];
2ec600d6 2381 int err;
2ec600d6 2382
67748893
JB		 2383 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2384 if (err)
2385 return err;
bba95fef
JB		 2386
2387 if (!dev->ops->dump_station) {
eec60b03 2388 err = -EOPNOTSUPP;
bba95fef
JB		 2389 goto out_err;
2390 }
2391
bba95fef 2392 while (1) {
f612cedf 2393 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2394 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2395 mac_addr, &sinfo);
2396 if (err == -ENOENT)
2397 break;
2398 if (err)
3b85875a 2399 goto out_err;
bba95fef
JB		 2400
2401 if (nl80211_send_station(skb,
2402 NETLINK_CB(cb->skb).pid,
2403 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2404 netdev, mac_addr,
2405 &sinfo) < 0)
2406 goto out;
2407
2408 sta_idx++;
2409 }
2410
2411
2412 out:
2413 cb->args[1] = sta_idx;
2414 err = skb->len;
bba95fef 2415 out_err:
67748893 2416 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2417
2418 return err;
2ec600d6 2419}
fd5b74dc 2420
5727ef1b
JB		 2421static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2422{
4c476991
JB		 2423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2424 struct net_device *dev = info->user_ptr[1];
2ec600d6 2425 struct station_info sinfo;
fd5b74dc
JB		 2426 struct sk_buff *msg;
2427 u8 *mac_addr = NULL;
4c476991 2428 int err;
fd5b74dc 2429
2ec600d6 2430 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2431
2432 if (!info->attrs[NL80211_ATTR_MAC])
2433 return -EINVAL;
2434
2435 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2436
4c476991
JB		 2437 if (!rdev->ops->get_station)
2438 return -EOPNOTSUPP;
3b85875a 2439
4c476991 2440 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2441 if (err)
4c476991 2442 return err;
2ec600d6 2443
fd2120ca 2444 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2445 if (!msg)
4c476991 2446 return -ENOMEM;
fd5b74dc
JB		 2447
2448 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2449 dev, mac_addr, &sinfo) < 0) {
2450 nlmsg_free(msg);
2451 return -ENOBUFS;
2452 }
3b85875a 2453
4c476991 2454 return genlmsg_reply(msg, info);
5727ef1b
JB		 2455}
2456
2457/*
c258d2de 2458 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2459 */
463d0183 2460static int get_vlan(struct genl_info *info,
5727ef1b
JB		 2461 struct cfg80211_registered_device *rdev,
2462 struct net_device **vlan)
2463{
463d0183 2464 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 2465 *vlan = NULL;
2466
2467 if (vlanattr) {
463d0183
JB		 2468 *vlan = dev_get_by_index(genl_info_net(info),
2469 nla_get_u32(vlanattr));
5727ef1b
JB		 2470 if (!*vlan)
2471 return -ENODEV;
2472 if (!(*vlan)->ieee80211_ptr)
2473 return -EINVAL;
2474 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
2475 return -EINVAL;
c258d2de
FF		 2476 if (!netif_running(*vlan))
2477 return -ENETDOWN;
5727ef1b
JB		 2478 }
2479 return 0;
2480}
2481
2482static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2483{
4c476991 2484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2485 int err;
4c476991 2486 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2487 struct station_parameters params;
2488 u8 *mac_addr = NULL;
2489
2490 memset(&params, 0, sizeof(params));
2491
2492 params.listen_interval = -1;
57cf8043 2493 params.plink_state = -1;
5727ef1b
JB		 2494
2495 if (info->attrs[NL80211_ATTR_STA_AID])
2496 return -EINVAL;
2497
2498 if (!info->attrs[NL80211_ATTR_MAC])
2499 return -EINVAL;
2500
2501 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2502
2503 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2504 params.supported_rates =
2505 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2506 params.supported_rates_len =
2507 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2508 }
2509
2510 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2511 params.listen_interval =
2512 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2513
36aedc90
JM		 2514 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2515 params.ht_capa =
2516 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2517
eccb8e8f 2518 if (parse_station_flags(info, &params))
5727ef1b
JB		 2519 return -EINVAL;
2520
2ec600d6
LCC		 2521 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2522 params.plink_action =
2523 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2524
9c3990aa
JC		 2525 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2526 params.plink_state =
2527 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2528
463d0183 2529 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2530 if (err)
034d655e 2531 goto out;
a97f4424
JB		 2532
2533 /* validate settings */
2534 err = 0;
2535
2536 switch (dev->ieee80211_ptr->iftype) {
2537 case NL80211_IFTYPE_AP:
2538 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2539 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2540 /* disallow mesh-specific things */
2541 if (params.plink_action)
2542 err = -EINVAL;
2543 break;
074ac8df 2544 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2545 case NL80211_IFTYPE_STATION:
07ba55d7 2546 /* disallow things sta doesn't support */
a97f4424
JB		 2547 if (params.plink_action)
2548 err = -EINVAL;
2549 if (params.vlan)
2550 err = -EINVAL;
07ba55d7
AN		 2551 if (params.supported_rates &&
2552 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2553 err = -EINVAL;
2554 if (params.ht_capa)
2555 err = -EINVAL;
2556 if (params.listen_interval >= 0)
2557 err = -EINVAL;
07ba55d7
AN		 2558 if (params.sta_flags_mask &
2559 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2560 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2561 err = -EINVAL;
2562 /* can't change the TDLS bit */
2563 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2564 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2565 err = -EINVAL;
2566 break;
2567 case NL80211_IFTYPE_MESH_POINT:
2568 /* disallow things mesh doesn't support */
2569 if (params.vlan)
2570 err = -EINVAL;
2571 if (params.ht_capa)
2572 err = -EINVAL;
2573 if (params.listen_interval >= 0)
2574 err = -EINVAL;
b39c48fa
JC		 2575 if (params.sta_flags_mask &
2576 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2577 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2578 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2579 err = -EINVAL;
2580 break;
2581 default:
2582 err = -EINVAL;
034d655e
JB		 2583 }
2584
5727ef1b
JB		 2585 if (err)
2586 goto out;
2587
79c97e97 2588 if (!rdev->ops->change_station) {
5727ef1b
JB		 2589 err = -EOPNOTSUPP;
2590 goto out;
2591 }
2592
79c97e97 2593 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2594
2595 out:
2596 if (params.vlan)
2597 dev_put(params.vlan);
3b85875a 2598
5727ef1b
JB		 2599 return err;
2600}
2601
c75786c9
EP		 2602static struct nla_policy
2603nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2604 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2605 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2606};
2607
5727ef1b
JB		 2608static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2609{
4c476991 2610 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2611 int err;
4c476991 2612 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2613 struct station_parameters params;
2614 u8 *mac_addr = NULL;
2615
2616 memset(&params, 0, sizeof(params));
2617
2618 if (!info->attrs[NL80211_ATTR_MAC])
2619 return -EINVAL;
2620
5727ef1b
JB		 2621 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2622 return -EINVAL;
2623
2624 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2625 return -EINVAL;
2626
0e956c13
TLSC		 2627 if (!info->attrs[NL80211_ATTR_STA_AID])
2628 return -EINVAL;
2629
5727ef1b
JB		 2630 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2631 params.supported_rates =
2632 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2633 params.supported_rates_len =
2634 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2635 params.listen_interval =
2636 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2637
0e956c13
TLSC		 2638 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2639 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2640 return -EINVAL;
51b50fbe 2641
36aedc90
JM		 2642 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2643 params.ht_capa =
2644 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2645
96b78dff
JC		 2646 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2647 params.plink_action =
2648 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2649
eccb8e8f 2650 if (parse_station_flags(info, &params))
5727ef1b
JB		 2651 return -EINVAL;
2652
c75786c9 2653 /* parse WME attributes if sta is WME capable */
cedb5412 2654 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2655 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2656 info->attrs[NL80211_ATTR_STA_WME]) {
2657 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2658 struct nlattr *nla;
2659
2660 nla = info->attrs[NL80211_ATTR_STA_WME];
2661 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2662 nl80211_sta_wme_policy);
2663 if (err)
2664 return err;
2665
2666 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2667 params.uapsd_queues =
2668 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2669 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2670 return -EINVAL;
c75786c9
EP		 2671
2672 if (tb[NL80211_STA_WME_MAX_SP])
2673 params.max_sp =
2674 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2675
2676 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2677 return -EINVAL;
3b9ce80c
JB		 2678
2679 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
c75786c9
EP		 2680 }
2681
0e956c13 2682 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2683 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2684 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
07ba55d7
AN		 2685 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2686 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2687 return -EINVAL;
2688
2689 /*
2690 * Only managed stations can add TDLS peers, and only when the
2691 * wiphy supports external TDLS setup.
2692 */
2693 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2694 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2695 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2696 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
4c476991 2697 return -EINVAL;
0e956c13 2698
463d0183 2699 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2700 if (err)
e80cf853 2701 goto out;
a97f4424
JB		 2702
2703 /* validate settings */
2704 err = 0;
2705
79c97e97 2706 if (!rdev->ops->add_station) {
5727ef1b
JB		 2707 err = -EOPNOTSUPP;
2708 goto out;
2709 }
2710
79c97e97 2711 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2712
2713 out:
2714 if (params.vlan)
2715 dev_put(params.vlan);
5727ef1b
JB		 2716 return err;
2717}
2718
2719static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2720{
4c476991
JB		 2721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2722 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2723 u8 *mac_addr = NULL;
2724
2725 if (info->attrs[NL80211_ATTR_MAC])
2726 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2727
e80cf853 2728 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2729 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2730 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2731 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2732 return -EINVAL;
5727ef1b 2733
4c476991
JB		 2734 if (!rdev->ops->del_station)
2735 return -EOPNOTSUPP;
3b85875a 2736
4c476991 2737 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2738}
2739
2ec600d6
LCC		 2740static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2741 int flags, struct net_device *dev,
2742 u8 *dst, u8 *next_hop,
2743 struct mpath_info *pinfo)
2744{
2745 void *hdr;
2746 struct nlattr *pinfoattr;
2747
2748 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2749 if (!hdr)
2750 return -1;
2751
2752 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2753 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2754 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2755
f5ea9120
JB		 2756 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2757
2ec600d6
LCC		 2758 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2759 if (!pinfoattr)
2760 goto nla_put_failure;
2761 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2762 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2763 pinfo->frame_qlen);
d19b3bf6
RP		 2764 if (pinfo->filled & MPATH_INFO_SN)
2765 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2766 pinfo->sn);
2ec600d6
LCC		 2767 if (pinfo->filled & MPATH_INFO_METRIC)
2768 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2769 pinfo->metric);
2770 if (pinfo->filled & MPATH_INFO_EXPTIME)
2771 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2772 pinfo->exptime);
2773 if (pinfo->filled & MPATH_INFO_FLAGS)
2774 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2775 pinfo->flags);
2776 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2777 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2778 pinfo->discovery_timeout);
2779 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2780 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2781 pinfo->discovery_retries);
2782
2783 nla_nest_end(msg, pinfoattr);
2784
2785 return genlmsg_end(msg, hdr);
2786
2787 nla_put_failure:
bc3ed28c
TG		 2788 genlmsg_cancel(msg, hdr);
2789 return -EMSGSIZE;
2ec600d6
LCC		 2790}
2791
2792static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2793 struct netlink_callback *cb)
2ec600d6 2794{
2ec600d6
LCC		 2795 struct mpath_info pinfo;
2796 struct cfg80211_registered_device *dev;
bba95fef 2797 struct net_device *netdev;
2ec600d6
LCC		 2798 u8 dst[ETH_ALEN];
2799 u8 next_hop[ETH_ALEN];
bba95fef 2800 int path_idx = cb->args[1];
2ec600d6 2801 int err;
2ec600d6 2802
67748893
JB		 2803 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2804 if (err)
2805 return err;
bba95fef
JB		 2806
2807 if (!dev->ops->dump_mpath) {
eec60b03 2808 err = -EOPNOTSUPP;
bba95fef
JB		 2809 goto out_err;
2810 }
2811
eec60b03
JM		 2812 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2813 err = -EOPNOTSUPP;
0448b5fc 2814 goto out_err;
eec60b03
JM		 2815 }
2816
bba95fef
JB		 2817 while (1) {
2818 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2819 dst, next_hop, &pinfo);
2820 if (err == -ENOENT)
2ec600d6 2821 break;
bba95fef 2822 if (err)
3b85875a 2823 goto out_err;
2ec600d6 2824
bba95fef
JB		 2825 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2826 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2827 netdev, dst, next_hop,
2828 &pinfo) < 0)
2829 goto out;
2ec600d6 2830
bba95fef 2831 path_idx++;
2ec600d6 2832 }
2ec600d6 2833
2ec600d6 2834
bba95fef
JB		 2835 out:
2836 cb->args[1] = path_idx;
2837 err = skb->len;
bba95fef 2838 out_err:
67748893 2839 nl80211_finish_netdev_dump(dev);
bba95fef 2840 return err;
2ec600d6
LCC		 2841}
2842
2843static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2844{
4c476991 2845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2846 int err;
4c476991 2847 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2848 struct mpath_info pinfo;
2849 struct sk_buff *msg;
2850 u8 *dst = NULL;
2851 u8 next_hop[ETH_ALEN];
2852
2853 memset(&pinfo, 0, sizeof(pinfo));
2854
2855 if (!info->attrs[NL80211_ATTR_MAC])
2856 return -EINVAL;
2857
2858 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2859
4c476991
JB		 2860 if (!rdev->ops->get_mpath)
2861 return -EOPNOTSUPP;
2ec600d6 2862
4c476991
JB		 2863 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2864 return -EOPNOTSUPP;
eec60b03 2865
79c97e97 2866 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2867 if (err)
4c476991 2868 return err;
2ec600d6 2869
fd2120ca 2870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2871 if (!msg)
4c476991 2872 return -ENOMEM;
2ec600d6
LCC		 2873
2874 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2875 dev, dst, next_hop, &pinfo) < 0) {
2876 nlmsg_free(msg);
2877 return -ENOBUFS;
2878 }
3b85875a 2879
4c476991 2880 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2881}
2882
2883static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2884{
4c476991
JB		 2885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2886 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2887 u8 *dst = NULL;
2888 u8 *next_hop = NULL;
2889
2890 if (!info->attrs[NL80211_ATTR_MAC])
2891 return -EINVAL;
2892
2893 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2894 return -EINVAL;
2895
2896 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2897 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2898
4c476991
JB		 2899 if (!rdev->ops->change_mpath)
2900 return -EOPNOTSUPP;
35a8efe1 2901
4c476991
JB		 2902 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2903 return -EOPNOTSUPP;
2ec600d6 2904
4c476991 2905 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2906}
4c476991 2907
2ec600d6
LCC		 2908static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2909{
4c476991
JB		 2910 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2911 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2912 u8 *dst = NULL;
2913 u8 *next_hop = NULL;
2914
2915 if (!info->attrs[NL80211_ATTR_MAC])
2916 return -EINVAL;
2917
2918 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2919 return -EINVAL;
2920
2921 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2922 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2923
4c476991
JB		 2924 if (!rdev->ops->add_mpath)
2925 return -EOPNOTSUPP;
35a8efe1 2926
4c476991
JB		 2927 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2928 return -EOPNOTSUPP;
2ec600d6 2929
4c476991 2930 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2931}
2932
2933static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2934{
4c476991
JB		 2935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2936 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2937 u8 *dst = NULL;
2938
2939 if (info->attrs[NL80211_ATTR_MAC])
2940 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2941
4c476991
JB		 2942 if (!rdev->ops->del_mpath)
2943 return -EOPNOTSUPP;
3b85875a 2944
4c476991 2945 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2946}
2947
9f1ba906
JM		 2948static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2949{
4c476991
JB		 2950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2951 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2952 struct bss_parameters params;
2953
2954 memset(&params, 0, sizeof(params));
2955 /* default to not changing parameters */
2956 params.use_cts_prot = -1;
2957 params.use_short_preamble = -1;
2958 params.use_short_slot_time = -1;
fd8aaaf3 2959 params.ap_isolate = -1;
50b12f59 2960 params.ht_opmode = -1;
9f1ba906
JM		 2961
2962 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2963 params.use_cts_prot =
2964 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2965 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2966 params.use_short_preamble =
2967 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2968 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2969 params.use_short_slot_time =
2970 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2971 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2972 params.basic_rates =
2973 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2974 params.basic_rates_len =
2975 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2976 }
fd8aaaf3
FF		 2977 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2978 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 2979 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
2980 params.ht_opmode =
2981 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 2982
4c476991
JB		 2983 if (!rdev->ops->change_bss)
2984 return -EOPNOTSUPP;
9f1ba906 2985
074ac8df 2986 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2987 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2988 return -EOPNOTSUPP;
3b85875a 2989
4c476991 2990 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2991}
2992
b54452b0 2993static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2994 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2995 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2996 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2997 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2998 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2999 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3000};
3001
3002static int parse_reg_rule(struct nlattr *tb[],
3003 struct ieee80211_reg_rule *reg_rule)
3004{
3005 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3006 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3007
3008 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3009 return -EINVAL;
3010 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3011 return -EINVAL;
3012 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3013 return -EINVAL;
3014 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3015 return -EINVAL;
3016 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3017 return -EINVAL;
3018
3019 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3020
3021 freq_range->start_freq_khz =
3022 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3023 freq_range->end_freq_khz =
3024 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3025 freq_range->max_bandwidth_khz =
3026 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3027
3028 power_rule->max_eirp =
3029 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3030
3031 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3032 power_rule->max_antenna_gain =
3033 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3034
3035 return 0;
3036}
3037
3038static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3039{
3040 int r;
3041 char *data = NULL;
3042
80778f18
LR		 3043 /*
3044 * You should only get this when cfg80211 hasn't yet initialized
3045 * completely when built-in to the kernel right between the time
3046 * window between nl80211_init() and regulatory_init(), if that is
3047 * even possible.
3048 */
3049 mutex_lock(&cfg80211_mutex);
3050 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3051 mutex_unlock(&cfg80211_mutex);
3052 return -EINPROGRESS;
80778f18 3053 }
fe33eb39 3054 mutex_unlock(&cfg80211_mutex);
80778f18 3055
fe33eb39
LR		 3056 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3057 return -EINVAL;
b2e1b302
LR		 3058
3059 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3060
fe33eb39
LR		 3061 r = regulatory_hint_user(data);
3062
b2e1b302
LR		 3063 return r;
3064}
3065
24bdd9f4 3066static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3067 struct genl_info *info)
93da9cc1 3068{
4c476991 3069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3070 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3071 struct wireless_dev *wdev = dev->ieee80211_ptr;
3072 struct mesh_config cur_params;
3073 int err = 0;
93da9cc1 3074 void *hdr;
3075 struct nlattr *pinfoattr;
3076 struct sk_buff *msg;
3077
29cbe68c
JB		 3078 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3079 return -EOPNOTSUPP;
3080
24bdd9f4 3081 if (!rdev->ops->get_mesh_config)
4c476991 3082 return -EOPNOTSUPP;
f3f92586 3083
29cbe68c
JB		 3084 wdev_lock(wdev);
3085 /* If not connected, get default parameters */
3086 if (!wdev->mesh_id_len)
3087 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3088 else
24bdd9f4 3089 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3090 &cur_params);
3091 wdev_unlock(wdev);
3092
93da9cc1 3093 if (err)
4c476991 3094 return err;
93da9cc1 3095
3096 /* Draw up a netlink message to send back */
fd2120ca 3097 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3098 if (!msg)
3099 return -ENOMEM;
93da9cc1 3100 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3101 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3102 if (!hdr)
efe1cf0c 3103 goto out;
24bdd9f4 3104 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3105 if (!pinfoattr)
3106 goto nla_put_failure;
3107 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3108 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3109 cur_params.dot11MeshRetryTimeout);
3110 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3111 cur_params.dot11MeshConfirmTimeout);
3112 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3113 cur_params.dot11MeshHoldingTimeout);
3114 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3115 cur_params.dot11MeshMaxPeerLinks);
3116 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3117 cur_params.dot11MeshMaxRetries);
3118 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3119 cur_params.dot11MeshTTL);
45904f21
JC		 3120 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3121 cur_params.element_ttl);
93da9cc1 3122 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3123 cur_params.auto_open_plinks);
3124 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3125 cur_params.dot11MeshHWMPmaxPREQretries);
3126 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3127 cur_params.path_refresh_time);
3128 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3129 cur_params.min_discovery_timeout);
3130 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3131 cur_params.dot11MeshHWMPactivePathTimeout);
3132 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3133 cur_params.dot11MeshHWMPpreqMinInterval);
3134 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3135 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3136 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3137 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3138 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3139 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3140 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3141 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3142 nla_nest_end(msg, pinfoattr);
3143 genlmsg_end(msg, hdr);
4c476991 3144 return genlmsg_reply(msg, info);
93da9cc1 3145
3b85875a 3146 nla_put_failure:
93da9cc1 3147 genlmsg_cancel(msg, hdr);
efe1cf0c 3148 out:
d080e275 3149 nlmsg_free(msg);
4c476991 3150 return -ENOBUFS;
93da9cc1 3151}
3152
b54452b0 3153static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3154 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3155 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3156 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3157 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3158 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3159 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3160 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3161 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3162
3163 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3164 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3165 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3166 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3167 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3168 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3169 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3170 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3171 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3172};
3173
c80d545d
JC		 3174static const struct nla_policy
3175 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3176 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3177 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3178 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3179 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3180 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3181 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3182};
3183
24bdd9f4 3184static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3185 struct mesh_config *cfg,
3186 u32 *mask_out)
93da9cc1 3187{
93da9cc1 3188 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3189 u32 mask = 0;
93da9cc1 3190
bd90fdcc
JB		 3191#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3192do {\
3193 if (table[attr_num]) {\
3194 cfg->param = nla_fn(table[attr_num]); \
3195 mask |= (1 << (attr_num - 1)); \
3196 } \
3197} while (0);\
3198
3199
24bdd9f4 3200 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3201 return -EINVAL;
3202 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3203 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3204 nl80211_meshconf_params_policy))
93da9cc1 3205 return -EINVAL;
3206
93da9cc1 3207 /* This makes sure that there aren't more than 32 mesh config
3208 * parameters (otherwise our bitfield scheme would not work.) */
3209 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3210
3211 /* Fill in the params struct */
93da9cc1 3212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3213 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3215 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3217 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3219 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3221 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3223 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3225 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3227 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3229 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3230 nla_get_u8);
3231 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3232 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3234 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3235 nla_get_u16);
3236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3237 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3238 nla_get_u32);
3239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3240 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3241 nla_get_u16);
3242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3243 dot11MeshHWMPnetDiameterTraversalTime,
3244 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3245 nla_get_u16);
63c5723b
RP		 3246 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3247 dot11MeshHWMPRootMode, mask,
3248 NL80211_MESHCONF_HWMP_ROOTMODE,
3249 nla_get_u8);
0507e159
JC		 3250 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3251 dot11MeshHWMPRannInterval, mask,
3252 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3253 nla_get_u16);
16dd7267
JC		 3254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3255 dot11MeshGateAnnouncementProtocol, mask,
3256 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3257 nla_get_u8);
bd90fdcc
JB		 3258 if (mask_out)
3259 *mask_out = mask;
c80d545d 3260
bd90fdcc
JB		 3261 return 0;
3262
3263#undef FILL_IN_MESH_PARAM_IF_SET
3264}
3265
c80d545d
JC		 3266static int nl80211_parse_mesh_setup(struct genl_info *info,
3267 struct mesh_setup *setup)
3268{
3269 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3270
3271 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3272 return -EINVAL;
3273 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3274 info->attrs[NL80211_ATTR_MESH_SETUP],
3275 nl80211_mesh_setup_params_policy))
3276 return -EINVAL;
3277
3278 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3279 setup->path_sel_proto =
3280 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3281 IEEE80211_PATH_PROTOCOL_VENDOR :
3282 IEEE80211_PATH_PROTOCOL_HWMP;
3283
3284 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3285 setup->path_metric =
3286 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3287 IEEE80211_PATH_METRIC_VENDOR :
3288 IEEE80211_PATH_METRIC_AIRTIME;
3289
581a8b0f
JC		 3290
3291 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3292 struct nlattr *ieattr =
581a8b0f 3293 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3294 if (!is_valid_ie_attr(ieattr))
3295 return -EINVAL;
581a8b0f
JC		 3296 setup->ie = nla_data(ieattr);
3297 setup->ie_len = nla_len(ieattr);
c80d545d 3298 }
b130e5ce
JC		 3299 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3300 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3301
3302 return 0;
3303}
3304
24bdd9f4 3305static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3306 struct genl_info *info)
bd90fdcc
JB		 3307{
3308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3309 struct net_device *dev = info->user_ptr[1];
29cbe68c 3310 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3311 struct mesh_config cfg;
3312 u32 mask;
3313 int err;
3314
29cbe68c
JB		 3315 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3316 return -EOPNOTSUPP;
3317
24bdd9f4 3318 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3319 return -EOPNOTSUPP;
3320
24bdd9f4 3321 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3322 if (err)
3323 return err;
3324
29cbe68c
JB		 3325 wdev_lock(wdev);
3326 if (!wdev->mesh_id_len)
3327 err = -ENOLINK;
3328
3329 if (!err)
24bdd9f4 3330 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3331 mask, &cfg);
3332
3333 wdev_unlock(wdev);
3334
3335 return err;
93da9cc1 3336}
3337
f130347c
LR		 3338static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3339{
3340 struct sk_buff *msg;
3341 void *hdr = NULL;
3342 struct nlattr *nl_reg_rules;
3343 unsigned int i;
3344 int err = -EINVAL;
3345
a1794390 3346 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3347
3348 if (!cfg80211_regdomain)
3349 goto out;
3350
fd2120ca 3351 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3352 if (!msg) {
3353 err = -ENOBUFS;
3354 goto out;
3355 }
3356
3357 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3358 NL80211_CMD_GET_REG);
3359 if (!hdr)
efe1cf0c 3360 goto put_failure;
f130347c
LR		 3361
3362 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3363 cfg80211_regdomain->alpha2);
3364
3365 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3366 if (!nl_reg_rules)
3367 goto nla_put_failure;
3368
3369 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3370 struct nlattr *nl_reg_rule;
3371 const struct ieee80211_reg_rule *reg_rule;
3372 const struct ieee80211_freq_range *freq_range;
3373 const struct ieee80211_power_rule *power_rule;
3374
3375 reg_rule = &cfg80211_regdomain->reg_rules[i];
3376 freq_range = &reg_rule->freq_range;
3377 power_rule = &reg_rule->power_rule;
3378
3379 nl_reg_rule = nla_nest_start(msg, i);
3380 if (!nl_reg_rule)
3381 goto nla_put_failure;
3382
3383 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3384 reg_rule->flags);
3385 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3386 freq_range->start_freq_khz);
3387 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3388 freq_range->end_freq_khz);
3389 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3390 freq_range->max_bandwidth_khz);
3391 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3392 power_rule->max_antenna_gain);
3393 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3394 power_rule->max_eirp);
3395
3396 nla_nest_end(msg, nl_reg_rule);
3397 }
3398
3399 nla_nest_end(msg, nl_reg_rules);
3400
3401 genlmsg_end(msg, hdr);
134e6375 3402 err = genlmsg_reply(msg, info);
f130347c
LR		 3403 goto out;
3404
3405nla_put_failure:
3406 genlmsg_cancel(msg, hdr);
efe1cf0c 3407put_failure:
d080e275 3408 nlmsg_free(msg);
f130347c
LR		 3409 err = -EMSGSIZE;
3410out:
a1794390 3411 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3412 return err;
3413}
3414
b2e1b302
LR		 3415static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3416{
3417 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3418 struct nlattr *nl_reg_rule;
3419 char *alpha2 = NULL;
3420 int rem_reg_rules = 0, r = 0;
3421 u32 num_rules = 0, rule_idx = 0, size_of_regd;
3422 struct ieee80211_regdomain *rd = NULL;
3423
3424 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3425 return -EINVAL;
3426
3427 if (!info->attrs[NL80211_ATTR_REG_RULES])
3428 return -EINVAL;
3429
3430 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3431
3432 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3433 rem_reg_rules) {
3434 num_rules++;
3435 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3436 return -EINVAL;
b2e1b302
LR		 3437 }
3438
61405e97
LR		 3439 mutex_lock(&cfg80211_mutex);
3440
d0e18f83
LR		 3441 if (!reg_is_valid_request(alpha2)) {
3442 r = -EINVAL;
3443 goto bad_reg;
3444 }
b2e1b302
LR		 3445
3446 size_of_regd = sizeof(struct ieee80211_regdomain) +
3447 (num_rules * sizeof(struct ieee80211_reg_rule));
3448
3449 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3450 if (!rd) {
3451 r = -ENOMEM;
3452 goto bad_reg;
3453 }
b2e1b302
LR		 3454
3455 rd->n_reg_rules = num_rules;
3456 rd->alpha2[0] = alpha2[0];
3457 rd->alpha2[1] = alpha2[1];
3458
3459 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3460 rem_reg_rules) {
3461 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3462 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3463 reg_rule_policy);
3464 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3465 if (r)
3466 goto bad_reg;
3467
3468 rule_idx++;
3469
d0e18f83
LR		 3470 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3471 r = -EINVAL;
b2e1b302 3472 goto bad_reg;
d0e18f83 3473 }
b2e1b302
LR		 3474 }
3475
3476 BUG_ON(rule_idx != num_rules);
3477
b2e1b302 3478 r = set_regdom(rd);
61405e97 3479
a1794390 3480 mutex_unlock(&cfg80211_mutex);
d0e18f83 3481
b2e1b302
LR		 3482 return r;
3483
d2372b31 3484 bad_reg:
61405e97 3485 mutex_unlock(&cfg80211_mutex);
b2e1b302 3486 kfree(rd);
d0e18f83 3487 return r;
b2e1b302
LR		 3488}
3489
83f5e2cf
JB		 3490static int validate_scan_freqs(struct nlattr *freqs)
3491{
3492 struct nlattr *attr1, *attr2;
3493 int n_channels = 0, tmp1, tmp2;
3494
3495 nla_for_each_nested(attr1, freqs, tmp1) {
3496 n_channels++;
3497 /*
3498 * Some hardware has a limited channel list for
3499 * scanning, and it is pretty much nonsensical
3500 * to scan for a channel twice, so disallow that
3501 * and don't require drivers to check that the
3502 * channel list they get isn't longer than what
3503 * they can scan, as long as they can scan all
3504 * the channels they registered at once.
3505 */
3506 nla_for_each_nested(attr2, freqs, tmp2)
3507 if (attr1 != attr2 &&
3508 nla_get_u32(attr1) == nla_get_u32(attr2))
3509 return 0;
3510 }
3511
3512 return n_channels;
3513}
3514
2a519311
JB		 3515static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3516{
4c476991
JB		 3517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3518 struct net_device *dev = info->user_ptr[1];
2a519311 3519 struct cfg80211_scan_request *request;
2a519311
JB		 3520 struct nlattr *attr;
3521 struct wiphy *wiphy;
83f5e2cf 3522 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3523 size_t ie_len;
2a519311 3524
f4a11bb0
JB		 3525 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3526 return -EINVAL;
3527
79c97e97 3528 wiphy = &rdev->wiphy;
2a519311 3529
4c476991
JB		 3530 if (!rdev->ops->scan)
3531 return -EOPNOTSUPP;
2a519311 3532
4c476991
JB		 3533 if (rdev->scan_req)
3534 return -EBUSY;
2a519311
JB		 3535
3536 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3537 n_channels = validate_scan_freqs(
3538 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3539 if (!n_channels)
3540 return -EINVAL;
2a519311 3541 } else {
34850ab2 3542 enum ieee80211_band band;
83f5e2cf
JB		 3543 n_channels = 0;
3544
2a519311
JB		 3545 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3546 if (wiphy->bands[band])
3547 n_channels += wiphy->bands[band]->n_channels;
3548 }
3549
3550 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3551 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3552 n_ssids++;
3553
4c476991
JB		 3554 if (n_ssids > wiphy->max_scan_ssids)
3555 return -EINVAL;
2a519311 3556
70692ad2
JM		 3557 if (info->attrs[NL80211_ATTR_IE])
3558 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3559 else
3560 ie_len = 0;
3561
4c476991
JB		 3562 if (ie_len > wiphy->max_scan_ie_len)
3563 return -EINVAL;
18a83659 3564
2a519311 3565 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3566 + sizeof(*request->ssids) * n_ssids
3567 + sizeof(*request->channels) * n_channels
70692ad2 3568 + ie_len, GFP_KERNEL);
4c476991
JB		 3569 if (!request)
3570 return -ENOMEM;
2a519311 3571
2a519311 3572 if (n_ssids)
5ba63533 3573 request->ssids = (void *)&request->channels[n_channels];
2a519311 3574 request->n_ssids = n_ssids;
70692ad2
JM		 3575 if (ie_len) {
3576 if (request->ssids)
3577 request->ie = (void *)(request->ssids + n_ssids);
3578 else
3579 request->ie = (void *)(request->channels + n_channels);
3580 }
2a519311 3581
584991dc 3582 i = 0;
2a519311
JB		 3583 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3584 /* user specified, bail out if channel not found */
2a519311 3585 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3586 struct ieee80211_channel *chan;
3587
3588 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3589
3590 if (!chan) {
2a519311
JB		 3591 err = -EINVAL;
3592 goto out_free;
3593 }
584991dc
JB		 3594
3595 /* ignore disabled channels */
3596 if (chan->flags & IEEE80211_CHAN_DISABLED)
3597 continue;
3598
3599 request->channels[i] = chan;
2a519311
JB		 3600 i++;
3601 }
3602 } else {
34850ab2
JB		 3603 enum ieee80211_band band;
3604
2a519311 3605 /* all channels */
2a519311
JB		 3606 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3607 int j;
3608 if (!wiphy->bands[band])
3609 continue;
3610 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3611 struct ieee80211_channel *chan;
3612
3613 chan = &wiphy->bands[band]->channels[j];
3614
3615 if (chan->flags & IEEE80211_CHAN_DISABLED)
3616 continue;
3617
3618 request->channels[i] = chan;
2a519311
JB		 3619 i++;
3620 }
3621 }
3622 }
3623
584991dc
JB		 3624 if (!i) {
3625 err = -EINVAL;
3626 goto out_free;
3627 }
3628
3629 request->n_channels = i;
3630
2a519311
JB		 3631 i = 0;
3632 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3633 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3634 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3635 err = -EINVAL;
3636 goto out_free;
3637 }
57a27e1d 3638 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3639 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3640 i++;
3641 }
3642 }
3643
70692ad2
JM		 3644 if (info->attrs[NL80211_ATTR_IE]) {
3645 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3646 memcpy((void *)request->ie,
3647 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3648 request->ie_len);
3649 }
3650
34850ab2 3651 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3652 if (wiphy->bands[i])
3653 request->rates[i] =
3654 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3655
3656 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3657 nla_for_each_nested(attr,
3658 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3659 tmp) {
3660 enum ieee80211_band band = nla_type(attr);
3661
84404623 3662 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3663 err = -EINVAL;
3664 goto out_free;
3665 }
3666 err = ieee80211_get_ratemask(wiphy->bands[band],
3667 nla_data(attr),
3668 nla_len(attr),
3669 &request->rates[band]);
3670 if (err)
3671 goto out_free;
3672 }
3673 }
3674
e9f935e3
RM		 3675 request->no_cck =
3676 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3677
463d0183 3678 request->dev = dev;
79c97e97 3679 request->wiphy = &rdev->wiphy;
2a519311 3680
79c97e97
JB		 3681 rdev->scan_req = request;
3682 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3683
463d0183 3684 if (!err) {
79c97e97 3685 nl80211_send_scan_start(rdev, dev);
463d0183 3686 dev_hold(dev);
4c476991 3687 } else {
2a519311 3688 out_free:
79c97e97 3689 rdev->scan_req = NULL;
2a519311
JB		 3690 kfree(request);
3691 }
3b85875a 3692
2a519311
JB		 3693 return err;
3694}
3695
807f8a8c
LC		 3696static int nl80211_start_sched_scan(struct sk_buff *skb,
3697 struct genl_info *info)
3698{
3699 struct cfg80211_sched_scan_request *request;
3700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3701 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3702 struct nlattr *attr;
3703 struct wiphy *wiphy;
a1f1c21c 3704 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3705 u32 interval;
807f8a8c
LC		 3706 enum ieee80211_band band;
3707 size_t ie_len;
a1f1c21c 3708 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3709
3710 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3711 !rdev->ops->sched_scan_start)
3712 return -EOPNOTSUPP;
3713
3714 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3715 return -EINVAL;
3716
bbe6ad6d
LC		 3717 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3718 return -EINVAL;
3719
3720 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3721 if (interval == 0)
3722 return -EINVAL;
3723
807f8a8c
LC		 3724 wiphy = &rdev->wiphy;
3725
3726 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3727 n_channels = validate_scan_freqs(
3728 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3729 if (!n_channels)
3730 return -EINVAL;
3731 } else {
3732 n_channels = 0;
3733
3734 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3735 if (wiphy->bands[band])
3736 n_channels += wiphy->bands[band]->n_channels;
3737 }
3738
3739 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3740 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3741 tmp)
3742 n_ssids++;
3743
93b6aa69 3744 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3745 return -EINVAL;
3746
a1f1c21c
LC		 3747 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3748 nla_for_each_nested(attr,
3749 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3750 tmp)
3751 n_match_sets++;
3752
3753 if (n_match_sets > wiphy->max_match_sets)
3754 return -EINVAL;
3755
807f8a8c
LC		 3756 if (info->attrs[NL80211_ATTR_IE])
3757 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3758 else
3759 ie_len = 0;
3760
5a865bad 3761 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3762 return -EINVAL;
3763
c10841ca
LC		 3764 mutex_lock(&rdev->sched_scan_mtx);
3765
3766 if (rdev->sched_scan_req) {
3767 err = -EINPROGRESS;
3768 goto out;
3769 }
3770
807f8a8c 3771 request = kzalloc(sizeof(*request)
a2cd43c5 3772 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3773 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3774 + sizeof(*request->channels) * n_channels
807f8a8c 3775 + ie_len, GFP_KERNEL);
c10841ca
LC		 3776 if (!request) {
3777 err = -ENOMEM;
3778 goto out;
3779 }
807f8a8c
LC		 3780
3781 if (n_ssids)
3782 request->ssids = (void *)&request->channels[n_channels];
3783 request->n_ssids = n_ssids;
3784 if (ie_len) {
3785 if (request->ssids)
3786 request->ie = (void *)(request->ssids + n_ssids);
3787 else
3788 request->ie = (void *)(request->channels + n_channels);
3789 }
3790
a1f1c21c
LC		 3791 if (n_match_sets) {
3792 if (request->ie)
3793 request->match_sets = (void *)(request->ie + ie_len);
3794 else if (request->ssids)
3795 request->match_sets =
3796 (void *)(request->ssids + n_ssids);
3797 else
3798 request->match_sets =
3799 (void *)(request->channels + n_channels);
3800 }
3801 request->n_match_sets = n_match_sets;
3802
807f8a8c
LC		 3803 i = 0;
3804 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3805 /* user specified, bail out if channel not found */
3806 nla_for_each_nested(attr,
3807 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3808 tmp) {
3809 struct ieee80211_channel *chan;
3810
3811 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3812
3813 if (!chan) {
3814 err = -EINVAL;
3815 goto out_free;
3816 }
3817
3818 /* ignore disabled channels */
3819 if (chan->flags & IEEE80211_CHAN_DISABLED)
3820 continue;
3821
3822 request->channels[i] = chan;
3823 i++;
3824 }
3825 } else {
3826 /* all channels */
3827 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3828 int j;
3829 if (!wiphy->bands[band])
3830 continue;
3831 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3832 struct ieee80211_channel *chan;
3833
3834 chan = &wiphy->bands[band]->channels[j];
3835
3836 if (chan->flags & IEEE80211_CHAN_DISABLED)
3837 continue;
3838
3839 request->channels[i] = chan;
3840 i++;
3841 }
3842 }
3843 }
3844
3845 if (!i) {
3846 err = -EINVAL;
3847 goto out_free;
3848 }
3849
3850 request->n_channels = i;
3851
3852 i = 0;
3853 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3854 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3855 tmp) {
57a27e1d 3856 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3857 err = -EINVAL;
3858 goto out_free;
3859 }
57a27e1d 3860 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3861 memcpy(request->ssids[i].ssid, nla_data(attr),
3862 nla_len(attr));
807f8a8c
LC		 3863 i++;
3864 }
3865 }
3866
a1f1c21c
LC		 3867 i = 0;
3868 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3869 nla_for_each_nested(attr,
3870 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3871 tmp) {
3872 struct nlattr *ssid;
3873
3874 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3875 nla_data(attr), nla_len(attr),
3876 nl80211_match_policy);
3877 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3878 if (ssid) {
3879 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3880 err = -EINVAL;
3881 goto out_free;
3882 }
3883 memcpy(request->match_sets[i].ssid.ssid,
3884 nla_data(ssid), nla_len(ssid));
3885 request->match_sets[i].ssid.ssid_len =
3886 nla_len(ssid);
3887 }
3888 i++;
3889 }
3890 }
3891
807f8a8c
LC		 3892 if (info->attrs[NL80211_ATTR_IE]) {
3893 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3894 memcpy((void *)request->ie,
3895 nla_data(info->attrs[NL80211_ATTR_IE]),
3896 request->ie_len);
3897 }
3898
3899 request->dev = dev;
3900 request->wiphy = &rdev->wiphy;
bbe6ad6d 3901 request->interval = interval;
807f8a8c
LC		 3902
3903 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3904 if (!err) {
3905 rdev->sched_scan_req = request;
3906 nl80211_send_sched_scan(rdev, dev,
3907 NL80211_CMD_START_SCHED_SCAN);
3908 goto out;
3909 }
3910
3911out_free:
3912 kfree(request);
3913out:
c10841ca 3914 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3915 return err;
3916}
3917
3918static int nl80211_stop_sched_scan(struct sk_buff *skb,
3919 struct genl_info *info)
3920{
3921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 3922 int err;
807f8a8c
LC		 3923
3924 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3925 !rdev->ops->sched_scan_stop)
3926 return -EOPNOTSUPP;
3927
c10841ca
LC		 3928 mutex_lock(&rdev->sched_scan_mtx);
3929 err = __cfg80211_stop_sched_scan(rdev, false);
3930 mutex_unlock(&rdev->sched_scan_mtx);
3931
3932 return err;
807f8a8c
LC		 3933}
3934
9720bb3a
JB		 3935static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
3936 u32 seq, int flags,
2a519311 3937 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3938 struct wireless_dev *wdev,
3939 struct cfg80211_internal_bss *intbss)
2a519311 3940{
48ab905d 3941 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3942 void *hdr;
3943 struct nlattr *bss;
48ab905d
JB		 3944 int i;
3945
3946 ASSERT_WDEV_LOCK(wdev);
2a519311 3947
9720bb3a 3948 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 3949 NL80211_CMD_NEW_SCAN_RESULTS);
3950 if (!hdr)
3951 return -1;
3952
9720bb3a
JB		 3953 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
3954
f5ea9120 3955 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3956 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3957
3958 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3959 if (!bss)
3960 goto nla_put_failure;
3961 if (!is_zero_ether_addr(res->bssid))
3962 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3963 if (res->information_elements && res->len_information_elements)
3964 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3965 res->len_information_elements,
3966 res->information_elements);
34a6eddb
JM		 3967 if (res->beacon_ies && res->len_beacon_ies &&
3968 res->beacon_ies != res->information_elements)
3969 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3970 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3971 if (res->tsf)
3972 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3973 if (res->beacon_interval)
3974 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3975 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3976 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3977 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3978 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3979
77965c97 3980 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3981 case CFG80211_SIGNAL_TYPE_MBM:
3982 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3983 break;
3984 case CFG80211_SIGNAL_TYPE_UNSPEC:
3985 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3986 break;
3987 default:
3988 break;
3989 }
3990
48ab905d 3991 switch (wdev->iftype) {
074ac8df 3992 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3993 case NL80211_IFTYPE_STATION:
3994 if (intbss == wdev->current_bss)
3995 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3996 NL80211_BSS_STATUS_ASSOCIATED);
3997 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3998 if (intbss != wdev->auth_bsses[i])
3999 continue;
4000 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4001 NL80211_BSS_STATUS_AUTHENTICATED);
4002 break;
4003 }
4004 break;
4005 case NL80211_IFTYPE_ADHOC:
4006 if (intbss == wdev->current_bss)
4007 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4008 NL80211_BSS_STATUS_IBSS_JOINED);
4009 break;
4010 default:
4011 break;
4012 }
4013
2a519311
JB		 4014 nla_nest_end(msg, bss);
4015
4016 return genlmsg_end(msg, hdr);
4017
4018 nla_put_failure:
4019 genlmsg_cancel(msg, hdr);
4020 return -EMSGSIZE;
4021}
4022
4023static int nl80211_dump_scan(struct sk_buff *skb,
4024 struct netlink_callback *cb)
4025{
48ab905d
JB		 4026 struct cfg80211_registered_device *rdev;
4027 struct net_device *dev;
2a519311 4028 struct cfg80211_internal_bss *scan;
48ab905d 4029 struct wireless_dev *wdev;
2a519311
JB		 4030 int start = cb->args[1], idx = 0;
4031 int err;
4032
67748893
JB		 4033 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4034 if (err)
4035 return err;
2a519311 4036
48ab905d 4037 wdev = dev->ieee80211_ptr;
2a519311 4038
48ab905d
JB		 4039 wdev_lock(wdev);
4040 spin_lock_bh(&rdev->bss_lock);
4041 cfg80211_bss_expire(rdev);
4042
9720bb3a
JB		 4043 cb->seq = rdev->bss_generation;
4044
48ab905d 4045 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4046 if (++idx <= start)
4047 continue;
9720bb3a 4048 if (nl80211_send_bss(skb, cb,
2a519311 4049 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4050 rdev, wdev, scan) < 0) {
2a519311 4051 idx--;
67748893 4052 break;
2a519311
JB		 4053 }
4054 }
4055
48ab905d
JB		 4056 spin_unlock_bh(&rdev->bss_lock);
4057 wdev_unlock(wdev);
2a519311
JB		 4058
4059 cb->args[1] = idx;
67748893 4060 nl80211_finish_netdev_dump(rdev);
2a519311 4061
67748893 4062 return skb->len;
2a519311
JB		 4063}
4064
61fa713c
HS		 4065static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4066 int flags, struct net_device *dev,
4067 struct survey_info *survey)
4068{
4069 void *hdr;
4070 struct nlattr *infoattr;
4071
61fa713c
HS		 4072 hdr = nl80211hdr_put(msg, pid, seq, flags,
4073 NL80211_CMD_NEW_SURVEY_RESULTS);
4074 if (!hdr)
4075 return -ENOMEM;
4076
4077 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4078
4079 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4080 if (!infoattr)
4081 goto nla_put_failure;
4082
4083 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4084 survey->channel->center_freq);
4085 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4086 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4087 survey->noise);
17e5a808
FF		 4088 if (survey->filled & SURVEY_INFO_IN_USE)
4089 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4090 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4091 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4092 survey->channel_time);
4093 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4094 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4095 survey->channel_time_busy);
4096 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4097 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4098 survey->channel_time_ext_busy);
4099 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4100 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4101 survey->channel_time_rx);
4102 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4103 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4104 survey->channel_time_tx);
61fa713c
HS		 4105
4106 nla_nest_end(msg, infoattr);
4107
4108 return genlmsg_end(msg, hdr);
4109
4110 nla_put_failure:
4111 genlmsg_cancel(msg, hdr);
4112 return -EMSGSIZE;
4113}
4114
4115static int nl80211_dump_survey(struct sk_buff *skb,
4116 struct netlink_callback *cb)
4117{
4118 struct survey_info survey;
4119 struct cfg80211_registered_device *dev;
4120 struct net_device *netdev;
61fa713c
HS		 4121 int survey_idx = cb->args[1];
4122 int res;
4123
67748893
JB		 4124 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4125 if (res)
4126 return res;
61fa713c
HS		 4127
4128 if (!dev->ops->dump_survey) {
4129 res = -EOPNOTSUPP;
4130 goto out_err;
4131 }
4132
4133 while (1) {
180cdc79
LR		 4134 struct ieee80211_channel *chan;
4135
61fa713c
HS		 4136 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4137 &survey);
4138 if (res == -ENOENT)
4139 break;
4140 if (res)
4141 goto out_err;
4142
180cdc79
LR		 4143 /* Survey without a channel doesn't make sense */
4144 if (!survey.channel) {
4145 res = -EINVAL;
4146 goto out;
4147 }
4148
4149 chan = ieee80211_get_channel(&dev->wiphy,
4150 survey.channel->center_freq);
4151 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4152 survey_idx++;
4153 continue;
4154 }
4155
61fa713c
HS		 4156 if (nl80211_send_survey(skb,
4157 NETLINK_CB(cb->skb).pid,
4158 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4159 netdev,
4160 &survey) < 0)
4161 goto out;
4162 survey_idx++;
4163 }
4164
4165 out:
4166 cb->args[1] = survey_idx;
4167 res = skb->len;
4168 out_err:
67748893 4169 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4170 return res;
4171}
4172
255e737e
JM		 4173static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4174{
b23aa676
SO		 4175 return auth_type <= NL80211_AUTHTYPE_MAX;
4176}
4177
4178static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4179{
4180 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4181 NL80211_WPA_VERSION_2));
4182}
4183
636a5d36
JM		 4184static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4185{
4c476991
JB		 4186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4187 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4188 struct ieee80211_channel *chan;
4189 const u8 *bssid, *ssid, *ie = NULL;
4190 int err, ssid_len, ie_len = 0;
4191 enum nl80211_auth_type auth_type;
fffd0934 4192 struct key_parse key;
d5cdfacb 4193 bool local_state_change;
636a5d36 4194
f4a11bb0
JB		 4195 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4196 return -EINVAL;
4197
4198 if (!info->attrs[NL80211_ATTR_MAC])
4199 return -EINVAL;
4200
1778092e
JM		 4201 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4202 return -EINVAL;
4203
19957bb3
JB		 4204 if (!info->attrs[NL80211_ATTR_SSID])
4205 return -EINVAL;
4206
4207 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4208 return -EINVAL;
4209
fffd0934
JB		 4210 err = nl80211_parse_key(info, &key);
4211 if (err)
4212 return err;
4213
4214 if (key.idx >= 0) {
e31b8213
JB		 4215 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4216 return -EINVAL;
fffd0934
JB		 4217 if (!key.p.key || !key.p.key_len)
4218 return -EINVAL;
4219 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4220 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4221 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4222 key.p.key_len != WLAN_KEY_LEN_WEP104))
4223 return -EINVAL;
4224 if (key.idx > 4)
4225 return -EINVAL;
4226 } else {
4227 key.p.key_len = 0;
4228 key.p.key = NULL;
4229 }
4230
afea0b7a
JB		 4231 if (key.idx >= 0) {
4232 int i;
4233 bool ok = false;
4234 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4235 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4236 ok = true;
4237 break;
4238 }
4239 }
4c476991
JB		 4240 if (!ok)
4241 return -EINVAL;
afea0b7a
JB		 4242 }
4243
4c476991
JB		 4244 if (!rdev->ops->auth)
4245 return -EOPNOTSUPP;
636a5d36 4246
074ac8df 4247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4248 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4249 return -EOPNOTSUPP;
eec60b03 4250
19957bb3 4251 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4252 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4253 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4254 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4255 return -EINVAL;
636a5d36 4256
19957bb3
JB		 4257 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4258 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4259
4260 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4261 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4262 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4263 }
4264
19957bb3 4265 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4266 if (!nl80211_valid_auth_type(auth_type))
4267 return -EINVAL;
636a5d36 4268
d5cdfacb
JM		 4269 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4270
4c476991
JB		 4271 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4272 ssid, ssid_len, ie, ie_len,
4273 key.p.key, key.p.key_len, key.idx,
4274 local_state_change);
636a5d36
JM		 4275}
4276
c0692b8f
JB		 4277static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4278 struct genl_info *info,
3dc27d25
JB		 4279 struct cfg80211_crypto_settings *settings,
4280 int cipher_limit)
b23aa676 4281{
c0b2bbd8
JB		 4282 memset(settings, 0, sizeof(*settings));
4283
b23aa676
SO		 4284 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4285
c0692b8f
JB		 4286 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4287 u16 proto;
4288 proto = nla_get_u16(
4289 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4290 settings->control_port_ethertype = cpu_to_be16(proto);
4291 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4292 proto != ETH_P_PAE)
4293 return -EINVAL;
4294 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4295 settings->control_port_no_encrypt = true;
4296 } else
4297 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4298
b23aa676
SO		 4299 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4300 void *data;
4301 int len, i;
4302
4303 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4304 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4305 settings->n_ciphers_pairwise = len / sizeof(u32);
4306
4307 if (len % sizeof(u32))
4308 return -EINVAL;
4309
3dc27d25 4310 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4311 return -EINVAL;
4312
4313 memcpy(settings->ciphers_pairwise, data, len);
4314
4315 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4316 if (!cfg80211_supported_cipher_suite(
4317 &rdev->wiphy,
b23aa676
SO		 4318 settings->ciphers_pairwise[i]))
4319 return -EINVAL;
4320 }
4321
4322 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4323 settings->cipher_group =
4324 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4325 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4326 settings->cipher_group))
b23aa676
SO		 4327 return -EINVAL;
4328 }
4329
4330 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4331 settings->wpa_versions =
4332 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4333 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4334 return -EINVAL;
4335 }
4336
4337 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4338 void *data;
6d30240e 4339 int len;
b23aa676
SO		 4340
4341 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4342 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4343 settings->n_akm_suites = len / sizeof(u32);
4344
4345 if (len % sizeof(u32))
4346 return -EINVAL;
4347
1b9ca027
JM		 4348 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4349 return -EINVAL;
4350
b23aa676 4351 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4352 }
4353
4354 return 0;
4355}
4356
636a5d36
JM		 4357static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4358{
4c476991
JB		 4359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4360 struct net_device *dev = info->user_ptr[1];
19957bb3 4361 struct cfg80211_crypto_settings crypto;
f444de05 4362 struct ieee80211_channel *chan;
3e5d7649 4363 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4364 int err, ssid_len, ie_len = 0;
4365 bool use_mfp = false;
636a5d36 4366
f4a11bb0
JB		 4367 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4368 return -EINVAL;
4369
4370 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4371 !info->attrs[NL80211_ATTR_SSID] ||
4372 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4373 return -EINVAL;
4374
4c476991
JB		 4375 if (!rdev->ops->assoc)
4376 return -EOPNOTSUPP;
636a5d36 4377
074ac8df 4378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4379 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4380 return -EOPNOTSUPP;
eec60b03 4381
19957bb3 4382 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4383
19957bb3
JB		 4384 chan = ieee80211_get_channel(&rdev->wiphy,
4385 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4386 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4387 return -EINVAL;
636a5d36 4388
19957bb3
JB		 4389 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4390 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4391
4392 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4393 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4394 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4395 }
4396
dc6382ce 4397 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4398 enum nl80211_mfp mfp =
dc6382ce 4399 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4400 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4401 use_mfp = true;
4c476991
JB		 4402 else if (mfp != NL80211_MFP_NO)
4403 return -EINVAL;
dc6382ce
JM		 4404 }
4405
3e5d7649
JB		 4406 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4407 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4408
c0692b8f 4409 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4410 if (!err)
3e5d7649
JB		 4411 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4412 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 4413 &crypto);
636a5d36 4414
636a5d36
JM		 4415 return err;
4416}
4417
4418static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4419{
4c476991
JB		 4420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4421 struct net_device *dev = info->user_ptr[1];
19957bb3 4422 const u8 *ie = NULL, *bssid;
4c476991 4423 int ie_len = 0;
19957bb3 4424 u16 reason_code;
d5cdfacb 4425 bool local_state_change;
636a5d36 4426
f4a11bb0
JB		 4427 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4428 return -EINVAL;
4429
4430 if (!info->attrs[NL80211_ATTR_MAC])
4431 return -EINVAL;
4432
4433 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4434 return -EINVAL;
4435
4c476991
JB		 4436 if (!rdev->ops->deauth)
4437 return -EOPNOTSUPP;
636a5d36 4438
074ac8df 4439 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4440 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4441 return -EOPNOTSUPP;
eec60b03 4442
19957bb3 4443 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4444
19957bb3
JB		 4445 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4446 if (reason_code == 0) {
f4a11bb0 4447 /* Reason Code 0 is reserved */
4c476991 4448 return -EINVAL;
255e737e 4449 }
636a5d36
JM		 4450
4451 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4452 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4453 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4454 }
4455
d5cdfacb
JM		 4456 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4457
4c476991
JB		 4458 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4459 local_state_change);
636a5d36
JM		 4460}
4461
4462static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4463{
4c476991
JB		 4464 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4465 struct net_device *dev = info->user_ptr[1];
19957bb3 4466 const u8 *ie = NULL, *bssid;
4c476991 4467 int ie_len = 0;
19957bb3 4468 u16 reason_code;
d5cdfacb 4469 bool local_state_change;
636a5d36 4470
f4a11bb0
JB		 4471 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4472 return -EINVAL;
4473
4474 if (!info->attrs[NL80211_ATTR_MAC])
4475 return -EINVAL;
4476
4477 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4478 return -EINVAL;
4479
4c476991
JB		 4480 if (!rdev->ops->disassoc)
4481 return -EOPNOTSUPP;
636a5d36 4482
074ac8df 4483 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4484 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4485 return -EOPNOTSUPP;
eec60b03 4486
19957bb3 4487 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4488
19957bb3
JB		 4489 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4490 if (reason_code == 0) {
f4a11bb0 4491 /* Reason Code 0 is reserved */
4c476991 4492 return -EINVAL;
255e737e 4493 }
636a5d36
JM		 4494
4495 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4496 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4497 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4498 }
4499
d5cdfacb
JM		 4500 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4501
4c476991
JB		 4502 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4503 local_state_change);
636a5d36
JM		 4504}
4505
dd5b4cc7
FF		 4506static bool
4507nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4508 int mcast_rate[IEEE80211_NUM_BANDS],
4509 int rateval)
4510{
4511 struct wiphy *wiphy = &rdev->wiphy;
4512 bool found = false;
4513 int band, i;
4514
4515 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4516 struct ieee80211_supported_band *sband;
4517
4518 sband = wiphy->bands[band];
4519 if (!sband)
4520 continue;
4521
4522 for (i = 0; i < sband->n_bitrates; i++) {
4523 if (sband->bitrates[i].bitrate == rateval) {
4524 mcast_rate[band] = i + 1;
4525 found = true;
4526 break;
4527 }
4528 }
4529 }
4530
4531 return found;
4532}
4533
04a773ad
JB		 4534static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4535{
4c476991
JB		 4536 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4537 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4538 struct cfg80211_ibss_params ibss;
4539 struct wiphy *wiphy;
fffd0934 4540 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4541 int err;
4542
8e30bc55
JB		 4543 memset(&ibss, 0, sizeof(ibss));
4544
04a773ad
JB		 4545 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4546 return -EINVAL;
4547
4548 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4549 !info->attrs[NL80211_ATTR_SSID] ||
4550 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4551 return -EINVAL;
4552
8e30bc55
JB		 4553 ibss.beacon_interval = 100;
4554
4555 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4556 ibss.beacon_interval =
4557 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4558 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4559 return -EINVAL;
4560 }
4561
4c476991
JB		 4562 if (!rdev->ops->join_ibss)
4563 return -EOPNOTSUPP;
04a773ad 4564
4c476991
JB		 4565 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4566 return -EOPNOTSUPP;
04a773ad 4567
79c97e97 4568 wiphy = &rdev->wiphy;
04a773ad 4569
39193498 4570 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4571 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4572
4573 if (!is_valid_ether_addr(ibss.bssid))
4574 return -EINVAL;
4575 }
04a773ad
JB		 4576 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4577 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4578
4579 if (info->attrs[NL80211_ATTR_IE]) {
4580 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4581 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4582 }
4583
4584 ibss.channel = ieee80211_get_channel(wiphy,
4585 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4586 if (!ibss.channel ||
4587 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4588 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4589 return -EINVAL;
04a773ad
JB		 4590
4591 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4592 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4593
fbd2c8dc
TP		 4594 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4595 u8 *rates =
4596 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4597 int n_rates =
4598 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4599 struct ieee80211_supported_band *sband =
4600 wiphy->bands[ibss.channel->band];
34850ab2 4601 int err;
fbd2c8dc 4602
34850ab2
JB		 4603 err = ieee80211_get_ratemask(sband, rates, n_rates,
4604 &ibss.basic_rates);
4605 if (err)
4606 return err;
fbd2c8dc 4607 }
dd5b4cc7
FF		 4608
4609 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4610 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4611 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4612 return -EINVAL;
fbd2c8dc 4613
4c476991
JB		 4614 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4615 connkeys = nl80211_parse_connkeys(rdev,
4616 info->attrs[NL80211_ATTR_KEYS]);
4617 if (IS_ERR(connkeys))
4618 return PTR_ERR(connkeys);
4619 }
04a773ad 4620
4c476991 4621 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4622 if (err)
4623 kfree(connkeys);
04a773ad
JB		 4624 return err;
4625}
4626
4627static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4628{
4c476991
JB		 4629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4630 struct net_device *dev = info->user_ptr[1];
04a773ad 4631
4c476991
JB		 4632 if (!rdev->ops->leave_ibss)
4633 return -EOPNOTSUPP;
04a773ad 4634
4c476991
JB		 4635 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4636 return -EOPNOTSUPP;
04a773ad 4637
4c476991 4638 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4639}
4640
aff89a9b
JB		 4641#ifdef CONFIG_NL80211_TESTMODE
4642static struct genl_multicast_group nl80211_testmode_mcgrp = {
4643 .name = "testmode",
4644};
4645
4646static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4647{
4c476991 4648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4649 int err;
4650
4651 if (!info->attrs[NL80211_ATTR_TESTDATA])
4652 return -EINVAL;
4653
aff89a9b
JB		 4654 err = -EOPNOTSUPP;
4655 if (rdev->ops->testmode_cmd) {
4656 rdev->testmode_info = info;
4657 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4658 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4659 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4660 rdev->testmode_info = NULL;
4661 }
4662
aff89a9b
JB		 4663 return err;
4664}
4665
71063f0e
WYG		 4666static int nl80211_testmode_dump(struct sk_buff *skb,
4667 struct netlink_callback *cb)
4668{
4669 struct cfg80211_registered_device *dev;
4670 int err;
4671 long phy_idx;
4672 void *data = NULL;
4673 int data_len = 0;
4674
4675 if (cb->args[0]) {
4676 /*
4677 * 0 is a valid index, but not valid for args[0],
4678 * so we need to offset by 1.
4679 */
4680 phy_idx = cb->args[0] - 1;
4681 } else {
4682 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4683 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4684 nl80211_policy);
4685 if (err)
4686 return err;
4687 if (!nl80211_fam.attrbuf[NL80211_ATTR_WIPHY])
4688 return -EINVAL;
4689 phy_idx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4690 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4691 cb->args[1] =
4692 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4693 }
4694
4695 if (cb->args[1]) {
4696 data = nla_data((void *)cb->args[1]);
4697 data_len = nla_len((void *)cb->args[1]);
4698 }
4699
4700 mutex_lock(&cfg80211_mutex);
4701 dev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4702 if (!dev) {
4703 mutex_unlock(&cfg80211_mutex);
4704 return -ENOENT;
4705 }
4706 cfg80211_lock_rdev(dev);
4707 mutex_unlock(&cfg80211_mutex);
4708
4709 if (!dev->ops->testmode_dump) {
4710 err = -EOPNOTSUPP;
4711 goto out_err;
4712 }
4713
4714 while (1) {
4715 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4716 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4717 NL80211_CMD_TESTMODE);
4718 struct nlattr *tmdata;
4719
4720 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, dev->wiphy_idx) < 0) {
4721 genlmsg_cancel(skb, hdr);
4722 break;
4723 }
4724
4725 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4726 if (!tmdata) {
4727 genlmsg_cancel(skb, hdr);
4728 break;
4729 }
4730 err = dev->ops->testmode_dump(&dev->wiphy, skb, cb,
4731 data, data_len);
4732 nla_nest_end(skb, tmdata);
4733
4734 if (err == -ENOBUFS || err == -ENOENT) {
4735 genlmsg_cancel(skb, hdr);
4736 break;
4737 } else if (err) {
4738 genlmsg_cancel(skb, hdr);
4739 goto out_err;
4740 }
4741
4742 genlmsg_end(skb, hdr);
4743 }
4744
4745 err = skb->len;
4746 /* see above */
4747 cb->args[0] = phy_idx + 1;
4748 out_err:
4749 cfg80211_unlock_rdev(dev);
4750 return err;
4751}
4752
aff89a9b
JB		 4753static struct sk_buff *
4754__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4755 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4756{
4757 struct sk_buff *skb;
4758 void *hdr;
4759 struct nlattr *data;
4760
4761 skb = nlmsg_new(approxlen + 100, gfp);
4762 if (!skb)
4763 return NULL;
4764
4765 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4766 if (!hdr) {
4767 kfree_skb(skb);
4768 return NULL;
4769 }
4770
4771 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4772 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4773
4774 ((void **)skb->cb)[0] = rdev;
4775 ((void **)skb->cb)[1] = hdr;
4776 ((void **)skb->cb)[2] = data;
4777
4778 return skb;
4779
4780 nla_put_failure:
4781 kfree_skb(skb);
4782 return NULL;
4783}
4784
4785struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4786 int approxlen)
4787{
4788 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4789
4790 if (WARN_ON(!rdev->testmode_info))
4791 return NULL;
4792
4793 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4794 rdev->testmode_info->snd_pid,
4795 rdev->testmode_info->snd_seq,
4796 GFP_KERNEL);
4797}
4798EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4799
4800int cfg80211_testmode_reply(struct sk_buff *skb)
4801{
4802 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4803 void *hdr = ((void **)skb->cb)[1];
4804 struct nlattr *data = ((void **)skb->cb)[2];
4805
4806 if (WARN_ON(!rdev->testmode_info)) {
4807 kfree_skb(skb);
4808 return -EINVAL;
4809 }
4810
4811 nla_nest_end(skb, data);
4812 genlmsg_end(skb, hdr);
4813 return genlmsg_reply(skb, rdev->testmode_info);
4814}
4815EXPORT_SYMBOL(cfg80211_testmode_reply);
4816
4817struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4818 int approxlen, gfp_t gfp)
4819{
4820 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4821
4822 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4823}
4824EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4825
4826void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4827{
4828 void *hdr = ((void **)skb->cb)[1];
4829 struct nlattr *data = ((void **)skb->cb)[2];
4830
4831 nla_nest_end(skb, data);
4832 genlmsg_end(skb, hdr);
4833 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4834}
4835EXPORT_SYMBOL(cfg80211_testmode_event);
4836#endif
4837
b23aa676
SO		 4838static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4839{
4c476991
JB		 4840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4841 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4842 struct cfg80211_connect_params connect;
4843 struct wiphy *wiphy;
fffd0934 4844 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4845 int err;
4846
4847 memset(&connect, 0, sizeof(connect));
4848
4849 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4850 return -EINVAL;
4851
4852 if (!info->attrs[NL80211_ATTR_SSID] ||
4853 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4854 return -EINVAL;
4855
4856 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4857 connect.auth_type =
4858 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4859 if (!nl80211_valid_auth_type(connect.auth_type))
4860 return -EINVAL;
4861 } else
4862 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4863
4864 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4865
c0692b8f 4866 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 4867 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4868 if (err)
4869 return err;
b23aa676 4870
074ac8df 4871 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4872 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4873 return -EOPNOTSUPP;
b23aa676 4874
79c97e97 4875 wiphy = &rdev->wiphy;
b23aa676 4876
b23aa676
SO		 4877 if (info->attrs[NL80211_ATTR_MAC])
4878 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4879 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4880 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4881
4882 if (info->attrs[NL80211_ATTR_IE]) {
4883 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4884 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4885 }
4886
4887 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4888 connect.channel =
4889 ieee80211_get_channel(wiphy,
4890 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4891 if (!connect.channel ||
4c476991
JB		 4892 connect.channel->flags & IEEE80211_CHAN_DISABLED)
4893 return -EINVAL;
b23aa676
SO		 4894 }
4895
fffd0934
JB		 4896 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4897 connkeys = nl80211_parse_connkeys(rdev,
4898 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 4899 if (IS_ERR(connkeys))
4900 return PTR_ERR(connkeys);
fffd0934
JB		 4901 }
4902
4903 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 4904 if (err)
4905 kfree(connkeys);
b23aa676
SO		 4906 return err;
4907}
4908
4909static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4910{
4c476991
JB		 4911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4912 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4913 u16 reason;
4914
4915 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4916 reason = WLAN_REASON_DEAUTH_LEAVING;
4917 else
4918 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4919
4920 if (reason == 0)
4921 return -EINVAL;
4922
074ac8df 4923 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4924 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4925 return -EOPNOTSUPP;
b23aa676 4926
4c476991 4927 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4928}
4929
463d0183
JB		 4930static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4931{
4c476991 4932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 4933 struct net *net;
4934 int err;
4935 u32 pid;
4936
4937 if (!info->attrs[NL80211_ATTR_PID])
4938 return -EINVAL;
4939
4940 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4941
463d0183 4942 net = get_net_ns_by_pid(pid);
4c476991
JB		 4943 if (IS_ERR(net))
4944 return PTR_ERR(net);
463d0183
JB		 4945
4946 err = 0;
4947
4948 /* check if anything to do */
4c476991
JB		 4949 if (!net_eq(wiphy_net(&rdev->wiphy), net))
4950 err = cfg80211_switch_netns(rdev, net);
463d0183 4951
463d0183 4952 put_net(net);
463d0183
JB		 4953 return err;
4954}
4955
67fbb16b
SO		 4956static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4957{
4c476991 4958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 4959 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4960 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 4961 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 4962 struct cfg80211_pmksa pmksa;
4963
4964 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4965
4966 if (!info->attrs[NL80211_ATTR_MAC])
4967 return -EINVAL;
4968
4969 if (!info->attrs[NL80211_ATTR_PMKID])
4970 return -EINVAL;
4971
67fbb16b
SO		 4972 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4973 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4974
074ac8df 4975 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4976 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4977 return -EOPNOTSUPP;
67fbb16b
SO		 4978
4979 switch (info->genlhdr->cmd) {
4980 case NL80211_CMD_SET_PMKSA:
4981 rdev_ops = rdev->ops->set_pmksa;
4982 break;
4983 case NL80211_CMD_DEL_PMKSA:
4984 rdev_ops = rdev->ops->del_pmksa;
4985 break;
4986 default:
4987 WARN_ON(1);
4988 break;
4989 }
4990
4c476991
JB		 4991 if (!rdev_ops)
4992 return -EOPNOTSUPP;
67fbb16b 4993
4c476991 4994 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 4995}
4996
4997static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4998{
4c476991
JB		 4999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5000 struct net_device *dev = info->user_ptr[1];
67fbb16b 5001
074ac8df 5002 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5003 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5004 return -EOPNOTSUPP;
67fbb16b 5005
4c476991
JB		 5006 if (!rdev->ops->flush_pmksa)
5007 return -EOPNOTSUPP;
67fbb16b 5008
4c476991 5009 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5010}
5011
109086ce
AN		 5012static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5013{
5014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5015 struct net_device *dev = info->user_ptr[1];
5016 u8 action_code, dialog_token;
5017 u16 status_code;
5018 u8 *peer;
5019
5020 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5021 !rdev->ops->tdls_mgmt)
5022 return -EOPNOTSUPP;
5023
5024 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5025 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5026 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5027 !info->attrs[NL80211_ATTR_IE] ||
5028 !info->attrs[NL80211_ATTR_MAC])
5029 return -EINVAL;
5030
5031 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5032 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5033 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5034 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5035
5036 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5037 dialog_token, status_code,
5038 nla_data(info->attrs[NL80211_ATTR_IE]),
5039 nla_len(info->attrs[NL80211_ATTR_IE]));
5040}
5041
5042static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5043{
5044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5045 struct net_device *dev = info->user_ptr[1];
5046 enum nl80211_tdls_operation operation;
5047 u8 *peer;
5048
5049 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5050 !rdev->ops->tdls_oper)
5051 return -EOPNOTSUPP;
5052
5053 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5054 !info->attrs[NL80211_ATTR_MAC])
5055 return -EINVAL;
5056
5057 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5058 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5059
5060 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5061}
5062
9588bbd5
JM		 5063static int nl80211_remain_on_channel(struct sk_buff *skb,
5064 struct genl_info *info)
5065{
4c476991
JB		 5066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5067 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5068 struct ieee80211_channel *chan;
5069 struct sk_buff *msg;
5070 void *hdr;
5071 u64 cookie;
5072 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5073 u32 freq, duration;
5074 int err;
5075
5076 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5077 !info->attrs[NL80211_ATTR_DURATION])
5078 return -EINVAL;
5079
5080 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5081
5082 /*
5083 * We should be on that channel for at least one jiffie,
5084 * and more than 5 seconds seems excessive.
5085 */
a293911d
JB		 5086 if (!duration || !msecs_to_jiffies(duration) ||
5087 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5088 return -EINVAL;
5089
4c476991
JB		 5090 if (!rdev->ops->remain_on_channel)
5091 return -EOPNOTSUPP;
9588bbd5 5092
9588bbd5
JM		 5093 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5094 channel_type = nla_get_u32(
5095 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5096 if (channel_type != NL80211_CHAN_NO_HT &&
5097 channel_type != NL80211_CHAN_HT20 &&
5098 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5099 channel_type != NL80211_CHAN_HT40MINUS)
5100 return -EINVAL;
9588bbd5
JM		 5101 }
5102
5103 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5104 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5105 if (chan == NULL)
5106 return -EINVAL;
9588bbd5
JM		 5107
5108 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5109 if (!msg)
5110 return -ENOMEM;
9588bbd5
JM		 5111
5112 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5113 NL80211_CMD_REMAIN_ON_CHANNEL);
5114
5115 if (IS_ERR(hdr)) {
5116 err = PTR_ERR(hdr);
5117 goto free_msg;
5118 }
5119
5120 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5121 channel_type, duration, &cookie);
5122
5123 if (err)
5124 goto free_msg;
5125
5126 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5127
5128 genlmsg_end(msg, hdr);
4c476991
JB		 5129
5130 return genlmsg_reply(msg, info);
9588bbd5
JM		 5131
5132 nla_put_failure:
5133 err = -ENOBUFS;
5134 free_msg:
5135 nlmsg_free(msg);
9588bbd5
JM		 5136 return err;
5137}
5138
5139static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5140 struct genl_info *info)
5141{
4c476991
JB		 5142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5143 struct net_device *dev = info->user_ptr[1];
9588bbd5 5144 u64 cookie;
9588bbd5
JM		 5145
5146 if (!info->attrs[NL80211_ATTR_COOKIE])
5147 return -EINVAL;
5148
4c476991
JB		 5149 if (!rdev->ops->cancel_remain_on_channel)
5150 return -EOPNOTSUPP;
9588bbd5 5151
9588bbd5
JM		 5152 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5153
4c476991 5154 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5155}
5156
13ae75b1
JM		 5157static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5158 u8 *rates, u8 rates_len)
5159{
5160 u8 i;
5161 u32 mask = 0;
5162
5163 for (i = 0; i < rates_len; i++) {
5164 int rate = (rates[i] & 0x7f) * 5;
5165 int ridx;
5166 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5167 struct ieee80211_rate *srate =
5168 &sband->bitrates[ridx];
5169 if (rate == srate->bitrate) {
5170 mask |= 1 << ridx;
5171 break;
5172 }
5173 }
5174 if (ridx == sband->n_bitrates)
5175 return 0; /* rate not found */
5176 }
5177
5178 return mask;
5179}
5180
b54452b0 5181static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5182 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5183 .len = NL80211_MAX_SUPP_RATES },
5184};
5185
5186static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5187 struct genl_info *info)
5188{
5189 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5191 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5192 int rem, i;
5193 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5194 struct nlattr *tx_rates;
5195 struct ieee80211_supported_band *sband;
5196
5197 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5198 return -EINVAL;
5199
4c476991
JB		 5200 if (!rdev->ops->set_bitrate_mask)
5201 return -EOPNOTSUPP;
13ae75b1
JM		 5202
5203 memset(&mask, 0, sizeof(mask));
5204 /* Default to all rates enabled */
5205 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5206 sband = rdev->wiphy.bands[i];
5207 mask.control[i].legacy =
5208 sband ? (1 << sband->n_bitrates) - 1 : 0;
5209 }
5210
5211 /*
5212 * The nested attribute uses enum nl80211_band as the index. This maps
5213 * directly to the enum ieee80211_band values used in cfg80211.
5214 */
5215 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5216 {
5217 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5218 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5219 return -EINVAL;
13ae75b1 5220 sband = rdev->wiphy.bands[band];
4c476991
JB		 5221 if (sband == NULL)
5222 return -EINVAL;
13ae75b1
JM		 5223 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5224 nla_len(tx_rates), nl80211_txattr_policy);
5225 if (tb[NL80211_TXRATE_LEGACY]) {
5226 mask.control[band].legacy = rateset_to_mask(
5227 sband,
5228 nla_data(tb[NL80211_TXRATE_LEGACY]),
5229 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5230 if (mask.control[band].legacy == 0)
5231 return -EINVAL;
13ae75b1
JM		 5232 }
5233 }
5234
4c476991 5235 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5236}
5237
2e161f78 5238static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5239{
4c476991
JB		 5240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5241 struct net_device *dev = info->user_ptr[1];
2e161f78 5242 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5243
5244 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5245 return -EINVAL;
5246
2e161f78
JB		 5247 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5248 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5249
9d38d85d 5250 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5251 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5252 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5253 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5254 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5255 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5256 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5257 return -EOPNOTSUPP;
026331c4
JM		 5258
5259 /* not much point in registering if we can't reply */
4c476991
JB		 5260 if (!rdev->ops->mgmt_tx)
5261 return -EOPNOTSUPP;
026331c4 5262
4c476991 5263 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5264 frame_type,
026331c4
JM		 5265 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5266 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5267}
5268
2e161f78 5269static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5270{
4c476991
JB		 5271 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5272 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5273 struct ieee80211_channel *chan;
5274 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5275 bool channel_type_valid = false;
026331c4
JM		 5276 u32 freq;
5277 int err;
5278 void *hdr;
5279 u64 cookie;
5280 struct sk_buff *msg;
f7ca38df
JB		 5281 unsigned int wait = 0;
5282 bool offchan;
e9f935e3 5283 bool no_cck;
026331c4
JM		 5284
5285 if (!info->attrs[NL80211_ATTR_FRAME] ||
5286 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5287 return -EINVAL;
5288
4c476991
JB		 5289 if (!rdev->ops->mgmt_tx)
5290 return -EOPNOTSUPP;
026331c4 5291
9d38d85d 5292 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5293 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5294 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5296 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5297 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5298 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5299 return -EOPNOTSUPP;
026331c4 5300
f7ca38df
JB		 5301 if (info->attrs[NL80211_ATTR_DURATION]) {
5302 if (!rdev->ops->mgmt_tx_cancel_wait)
5303 return -EINVAL;
5304 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5305 }
5306
026331c4
JM		 5307 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5308 channel_type = nla_get_u32(
5309 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5310 if (channel_type != NL80211_CHAN_NO_HT &&
5311 channel_type != NL80211_CHAN_HT20 &&
5312 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5313 channel_type != NL80211_CHAN_HT40MINUS)
5314 return -EINVAL;
252aa631 5315 channel_type_valid = true;
026331c4
JM		 5316 }
5317
f7ca38df
JB		 5318 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5319
e9f935e3
RM		 5320 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5321
026331c4
JM		 5322 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5323 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5324 if (chan == NULL)
5325 return -EINVAL;
026331c4
JM		 5326
5327 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5328 if (!msg)
5329 return -ENOMEM;
026331c4
JM		 5330
5331 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 5332 NL80211_CMD_FRAME);
026331c4
JM		 5333
5334 if (IS_ERR(hdr)) {
5335 err = PTR_ERR(hdr);
5336 goto free_msg;
5337 }
f7ca38df
JB		 5338 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5339 channel_type_valid, wait,
2e161f78
JB		 5340 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5341 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e9f935e3 5342 no_cck, &cookie);
026331c4
JM		 5343 if (err)
5344 goto free_msg;
5345
5346 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5347
5348 genlmsg_end(msg, hdr);
4c476991 5349 return genlmsg_reply(msg, info);
026331c4
JM		 5350
5351 nla_put_failure:
5352 err = -ENOBUFS;
5353 free_msg:
5354 nlmsg_free(msg);
026331c4
JM		 5355 return err;
5356}
5357
f7ca38df
JB		 5358static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5359{
5360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5361 struct net_device *dev = info->user_ptr[1];
5362 u64 cookie;
5363
5364 if (!info->attrs[NL80211_ATTR_COOKIE])
5365 return -EINVAL;
5366
5367 if (!rdev->ops->mgmt_tx_cancel_wait)
5368 return -EOPNOTSUPP;
5369
5370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5372 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5373 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5374 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5375 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5376 return -EOPNOTSUPP;
5377
5378 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5379
5380 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5381}
5382
ffb9eb3d
KV		 5383static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5384{
4c476991 5385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5386 struct wireless_dev *wdev;
4c476991 5387 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5388 u8 ps_state;
5389 bool state;
5390 int err;
5391
4c476991
JB		 5392 if (!info->attrs[NL80211_ATTR_PS_STATE])
5393 return -EINVAL;
ffb9eb3d
KV		 5394
5395 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5396
4c476991
JB		 5397 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5398 return -EINVAL;
ffb9eb3d
KV		 5399
5400 wdev = dev->ieee80211_ptr;
5401
4c476991
JB		 5402 if (!rdev->ops->set_power_mgmt)
5403 return -EOPNOTSUPP;
ffb9eb3d
KV		 5404
5405 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5406
5407 if (state == wdev->ps)
4c476991 5408 return 0;
ffb9eb3d 5409
4c476991
JB		 5410 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5411 wdev->ps_timeout);
5412 if (!err)
5413 wdev->ps = state;
ffb9eb3d
KV		 5414 return err;
5415}
5416
5417static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5418{
4c476991 5419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5420 enum nl80211_ps_state ps_state;
5421 struct wireless_dev *wdev;
4c476991 5422 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5423 struct sk_buff *msg;
5424 void *hdr;
5425 int err;
5426
ffb9eb3d
KV		 5427 wdev = dev->ieee80211_ptr;
5428
4c476991
JB		 5429 if (!rdev->ops->set_power_mgmt)
5430 return -EOPNOTSUPP;
ffb9eb3d
KV		 5431
5432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5433 if (!msg)
5434 return -ENOMEM;
ffb9eb3d
KV		 5435
5436 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5437 NL80211_CMD_GET_POWER_SAVE);
5438 if (!hdr) {
4c476991 5439 err = -ENOBUFS;
ffb9eb3d
KV		 5440 goto free_msg;
5441 }
5442
5443 if (wdev->ps)
5444 ps_state = NL80211_PS_ENABLED;
5445 else
5446 ps_state = NL80211_PS_DISABLED;
5447
5448 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5449
5450 genlmsg_end(msg, hdr);
4c476991 5451 return genlmsg_reply(msg, info);
ffb9eb3d 5452
4c476991 5453 nla_put_failure:
ffb9eb3d 5454 err = -ENOBUFS;
4c476991 5455 free_msg:
ffb9eb3d 5456 nlmsg_free(msg);
ffb9eb3d
KV		 5457 return err;
5458}
5459
d6dc1a38
JO		 5460static struct nla_policy
5461nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5462 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5463 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5464 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5465};
5466
5467static int nl80211_set_cqm_rssi(struct genl_info *info,
5468 s32 threshold, u32 hysteresis)
5469{
4c476991 5470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5471 struct wireless_dev *wdev;
4c476991 5472 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5473
5474 if (threshold > 0)
5475 return -EINVAL;
5476
d6dc1a38
JO		 5477 wdev = dev->ieee80211_ptr;
5478
4c476991
JB		 5479 if (!rdev->ops->set_cqm_rssi_config)
5480 return -EOPNOTSUPP;
d6dc1a38 5481
074ac8df 5482 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5483 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5484 return -EOPNOTSUPP;
d6dc1a38 5485
4c476991
JB		 5486 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5487 threshold, hysteresis);
d6dc1a38
JO		 5488}
5489
5490static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5491{
5492 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5493 struct nlattr *cqm;
5494 int err;
5495
5496 cqm = info->attrs[NL80211_ATTR_CQM];
5497 if (!cqm) {
5498 err = -EINVAL;
5499 goto out;
5500 }
5501
5502 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5503 nl80211_attr_cqm_policy);
5504 if (err)
5505 goto out;
5506
5507 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5508 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5509 s32 threshold;
5510 u32 hysteresis;
5511 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5512 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5513 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5514 } else
5515 err = -EINVAL;
5516
5517out:
5518 return err;
5519}
5520
29cbe68c
JB		 5521static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5522{
5523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5524 struct net_device *dev = info->user_ptr[1];
5525 struct mesh_config cfg;
c80d545d 5526 struct mesh_setup setup;
29cbe68c
JB		 5527 int err;
5528
5529 /* start with default */
5530 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5531 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5532
24bdd9f4 5533 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5534 /* and parse parameters if given */
24bdd9f4 5535 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5536 if (err)
5537 return err;
5538 }
5539
5540 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5541 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5542 return -EINVAL;
5543
c80d545d
JC		 5544 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5545 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5546
5547 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5548 /* parse additional setup parameters if given */
5549 err = nl80211_parse_mesh_setup(info, &setup);
5550 if (err)
5551 return err;
5552 }
5553
5554 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5555}
5556
5557static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5558{
5559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5560 struct net_device *dev = info->user_ptr[1];
5561
5562 return cfg80211_leave_mesh(rdev, dev);
5563}
5564
ff1b6e69
JB		 5565static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5566{
5567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5568 struct sk_buff *msg;
5569 void *hdr;
5570
5571 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5572 return -EOPNOTSUPP;
5573
5574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5575 if (!msg)
5576 return -ENOMEM;
5577
5578 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5579 NL80211_CMD_GET_WOWLAN);
5580 if (!hdr)
5581 goto nla_put_failure;
5582
5583 if (rdev->wowlan) {
5584 struct nlattr *nl_wowlan;
5585
5586 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5587 if (!nl_wowlan)
5588 goto nla_put_failure;
5589
5590 if (rdev->wowlan->any)
5591 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5592 if (rdev->wowlan->disconnect)
5593 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5594 if (rdev->wowlan->magic_pkt)
5595 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5596 if (rdev->wowlan->gtk_rekey_failure)
5597 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5598 if (rdev->wowlan->eap_identity_req)
5599 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5600 if (rdev->wowlan->four_way_handshake)
5601 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5602 if (rdev->wowlan->rfkill_release)
5603 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5604 if (rdev->wowlan->n_patterns) {
5605 struct nlattr *nl_pats, *nl_pat;
5606 int i, pat_len;
5607
5608 nl_pats = nla_nest_start(msg,
5609 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5610 if (!nl_pats)
5611 goto nla_put_failure;
5612
5613 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5614 nl_pat = nla_nest_start(msg, i + 1);
5615 if (!nl_pat)
5616 goto nla_put_failure;
5617 pat_len = rdev->wowlan->patterns[i].pattern_len;
5618 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5619 DIV_ROUND_UP(pat_len, 8),
5620 rdev->wowlan->patterns[i].mask);
5621 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5622 pat_len,
5623 rdev->wowlan->patterns[i].pattern);
5624 nla_nest_end(msg, nl_pat);
5625 }
5626 nla_nest_end(msg, nl_pats);
5627 }
5628
5629 nla_nest_end(msg, nl_wowlan);
5630 }
5631
5632 genlmsg_end(msg, hdr);
5633 return genlmsg_reply(msg, info);
5634
5635nla_put_failure:
5636 nlmsg_free(msg);
5637 return -ENOBUFS;
5638}
5639
5640static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5641{
5642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5643 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5644 struct cfg80211_wowlan no_triggers = {};
5645 struct cfg80211_wowlan new_triggers = {};
5646 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5647 int err, i;
5648
5649 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5650 return -EOPNOTSUPP;
5651
5652 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5653 goto no_triggers;
5654
5655 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5656 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5657 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5658 nl80211_wowlan_policy);
5659 if (err)
5660 return err;
5661
5662 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5663 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5664 return -EINVAL;
5665 new_triggers.any = true;
5666 }
5667
5668 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5669 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5670 return -EINVAL;
5671 new_triggers.disconnect = true;
5672 }
5673
5674 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5675 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5676 return -EINVAL;
5677 new_triggers.magic_pkt = true;
5678 }
5679
77dbbb13
JB		 5680 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5681 return -EINVAL;
5682
5683 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5684 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5685 return -EINVAL;
5686 new_triggers.gtk_rekey_failure = true;
5687 }
5688
5689 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5690 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5691 return -EINVAL;
5692 new_triggers.eap_identity_req = true;
5693 }
5694
5695 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5696 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5697 return -EINVAL;
5698 new_triggers.four_way_handshake = true;
5699 }
5700
5701 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5702 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5703 return -EINVAL;
5704 new_triggers.rfkill_release = true;
5705 }
5706
ff1b6e69
JB		 5707 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5708 struct nlattr *pat;
5709 int n_patterns = 0;
5710 int rem, pat_len, mask_len;
5711 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5712
5713 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5714 rem)
5715 n_patterns++;
5716 if (n_patterns > wowlan->n_patterns)
5717 return -EINVAL;
5718
5719 new_triggers.patterns = kcalloc(n_patterns,
5720 sizeof(new_triggers.patterns[0]),
5721 GFP_KERNEL);
5722 if (!new_triggers.patterns)
5723 return -ENOMEM;
5724
5725 new_triggers.n_patterns = n_patterns;
5726 i = 0;
5727
5728 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5729 rem) {
5730 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5731 nla_data(pat), nla_len(pat), NULL);
5732 err = -EINVAL;
5733 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5734 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5735 goto error;
5736 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5737 mask_len = DIV_ROUND_UP(pat_len, 8);
5738 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5739 mask_len)
5740 goto error;
5741 if (pat_len > wowlan->pattern_max_len ||
5742 pat_len < wowlan->pattern_min_len)
5743 goto error;
5744
5745 new_triggers.patterns[i].mask =
5746 kmalloc(mask_len + pat_len, GFP_KERNEL);
5747 if (!new_triggers.patterns[i].mask) {
5748 err = -ENOMEM;
5749 goto error;
5750 }
5751 new_triggers.patterns[i].pattern =
5752 new_triggers.patterns[i].mask + mask_len;
5753 memcpy(new_triggers.patterns[i].mask,
5754 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5755 mask_len);
5756 new_triggers.patterns[i].pattern_len = pat_len;
5757 memcpy(new_triggers.patterns[i].pattern,
5758 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5759 pat_len);
5760 i++;
5761 }
5762 }
5763
5764 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5765 struct cfg80211_wowlan *ntrig;
5766 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5767 GFP_KERNEL);
5768 if (!ntrig) {
5769 err = -ENOMEM;
5770 goto error;
5771 }
5772 cfg80211_rdev_free_wowlan(rdev);
5773 rdev->wowlan = ntrig;
5774 } else {
5775 no_triggers:
5776 cfg80211_rdev_free_wowlan(rdev);
5777 rdev->wowlan = NULL;
5778 }
5779
5780 return 0;
5781 error:
5782 for (i = 0; i < new_triggers.n_patterns; i++)
5783 kfree(new_triggers.patterns[i].mask);
5784 kfree(new_triggers.patterns);
5785 return err;
5786}
5787
e5497d76
JB		 5788static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5789{
5790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5791 struct net_device *dev = info->user_ptr[1];
5792 struct wireless_dev *wdev = dev->ieee80211_ptr;
5793 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5794 struct cfg80211_gtk_rekey_data rekey_data;
5795 int err;
5796
5797 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5798 return -EINVAL;
5799
5800 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5801 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5802 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5803 nl80211_rekey_policy);
5804 if (err)
5805 return err;
5806
5807 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5808 return -ERANGE;
5809 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5810 return -ERANGE;
5811 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5812 return -ERANGE;
5813
5814 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5815 NL80211_KEK_LEN);
5816 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5817 NL80211_KCK_LEN);
5818 memcpy(rekey_data.replay_ctr,
5819 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5820 NL80211_REPLAY_CTR_LEN);
5821
5822 wdev_lock(wdev);
5823 if (!wdev->current_bss) {
5824 err = -ENOTCONN;
5825 goto out;
5826 }
5827
5828 if (!rdev->ops->set_rekey_data) {
5829 err = -EOPNOTSUPP;
5830 goto out;
5831 }
5832
5833 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
5834 out:
5835 wdev_unlock(wdev);
5836 return err;
5837}
5838
28946da7
JB		 5839static int nl80211_register_unexpected_frame(struct sk_buff *skb,
5840 struct genl_info *info)
5841{
5842 struct net_device *dev = info->user_ptr[1];
5843 struct wireless_dev *wdev = dev->ieee80211_ptr;
5844
5845 if (wdev->iftype != NL80211_IFTYPE_AP &&
5846 wdev->iftype != NL80211_IFTYPE_P2P_GO)
5847 return -EINVAL;
5848
5849 if (wdev->ap_unexpected_nlpid)
5850 return -EBUSY;
5851
5852 wdev->ap_unexpected_nlpid = info->snd_pid;
5853 return 0;
5854}
5855
4c476991
JB		 5856#define NL80211_FLAG_NEED_WIPHY 0x01
5857#define NL80211_FLAG_NEED_NETDEV 0x02
5858#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 5859#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
5860#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
5861 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 5862
5863static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
5864 struct genl_info *info)
5865{
5866 struct cfg80211_registered_device *rdev;
5867 struct net_device *dev;
5868 int err;
5869 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
5870
5871 if (rtnl)
5872 rtnl_lock();
5873
5874 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
5875 rdev = cfg80211_get_dev_from_info(info);
5876 if (IS_ERR(rdev)) {
5877 if (rtnl)
5878 rtnl_unlock();
5879 return PTR_ERR(rdev);
5880 }
5881 info->user_ptr[0] = rdev;
5882 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
5883 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5884 if (err) {
5885 if (rtnl)
5886 rtnl_unlock();
5887 return err;
5888 }
41265714
JB		 5889 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
5890 !netif_running(dev)) {
d537f5fd
JB		 5891 cfg80211_unlock_rdev(rdev);
5892 dev_put(dev);
41265714
JB		 5893 if (rtnl)
5894 rtnl_unlock();
5895 return -ENETDOWN;
5896 }
4c476991
JB		 5897 info->user_ptr[0] = rdev;
5898 info->user_ptr[1] = dev;
5899 }
5900
5901 return 0;
5902}
5903
5904static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
5905 struct genl_info *info)
5906{
5907 if (info->user_ptr[0])
5908 cfg80211_unlock_rdev(info->user_ptr[0]);
5909 if (info->user_ptr[1])
5910 dev_put(info->user_ptr[1]);
5911 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
5912 rtnl_unlock();
5913}
5914
55682965
JB		 5915static struct genl_ops nl80211_ops[] = {
5916 {
5917 .cmd = NL80211_CMD_GET_WIPHY,
5918 .doit = nl80211_get_wiphy,
5919 .dumpit = nl80211_dump_wiphy,
5920 .policy = nl80211_policy,
5921 /* can be retrieved by unprivileged users */
4c476991 5922 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 5923 },
5924 {
5925 .cmd = NL80211_CMD_SET_WIPHY,
5926 .doit = nl80211_set_wiphy,
5927 .policy = nl80211_policy,
5928 .flags = GENL_ADMIN_PERM,
4c476991 5929 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 5930 },
5931 {
5932 .cmd = NL80211_CMD_GET_INTERFACE,
5933 .doit = nl80211_get_interface,
5934 .dumpit = nl80211_dump_interface,
5935 .policy = nl80211_policy,
5936 /* can be retrieved by unprivileged users */
4c476991 5937 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 5938 },
5939 {
5940 .cmd = NL80211_CMD_SET_INTERFACE,
5941 .doit = nl80211_set_interface,
5942 .policy = nl80211_policy,
5943 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5944 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5945 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5946 },
5947 {
5948 .cmd = NL80211_CMD_NEW_INTERFACE,
5949 .doit = nl80211_new_interface,
5950 .policy = nl80211_policy,
5951 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5952 .internal_flags = NL80211_FLAG_NEED_WIPHY |
5953 NL80211_FLAG_NEED_RTNL,
55682965
JB		 5954 },
5955 {
5956 .cmd = NL80211_CMD_DEL_INTERFACE,
5957 .doit = nl80211_del_interface,
5958 .policy = nl80211_policy,
41ade00f 5959 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5960 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5961 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5962 },
5963 {
5964 .cmd = NL80211_CMD_GET_KEY,
5965 .doit = nl80211_get_key,
5966 .policy = nl80211_policy,
5967 .flags = GENL_ADMIN_PERM,
4c476991
JB		 5968 .internal_flags = NL80211_FLAG_NEED_NETDEV |
5969 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5970 },
5971 {
5972 .cmd = NL80211_CMD_SET_KEY,
5973 .doit = nl80211_set_key,
5974 .policy = nl80211_policy,
5975 .flags = GENL_ADMIN_PERM,
41265714 5976 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5977 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5978 },
5979 {
5980 .cmd = NL80211_CMD_NEW_KEY,
5981 .doit = nl80211_new_key,
5982 .policy = nl80211_policy,
5983 .flags = GENL_ADMIN_PERM,
41265714 5984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5985 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 5986 },
5987 {
5988 .cmd = NL80211_CMD_DEL_KEY,
5989 .doit = nl80211_del_key,
5990 .policy = nl80211_policy,
55682965 5991 .flags = GENL_ADMIN_PERM,
41265714 5992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 5993 NL80211_FLAG_NEED_RTNL,
55682965 5994 },
ed1b6cc7
JB		 5995 {
5996 .cmd = NL80211_CMD_SET_BEACON,
5997 .policy = nl80211_policy,
5998 .flags = GENL_ADMIN_PERM,
5999 .doit = nl80211_addset_beacon,
4c476991
JB		 6000 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6001 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6002 },
6003 {
6004 .cmd = NL80211_CMD_NEW_BEACON,
6005 .policy = nl80211_policy,
6006 .flags = GENL_ADMIN_PERM,
6007 .doit = nl80211_addset_beacon,
4c476991
JB		 6008 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6009 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6010 },
6011 {
6012 .cmd = NL80211_CMD_DEL_BEACON,
6013 .policy = nl80211_policy,
6014 .flags = GENL_ADMIN_PERM,
6015 .doit = nl80211_del_beacon,
4c476991
JB		 6016 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6017 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6018 },
5727ef1b
JB		 6019 {
6020 .cmd = NL80211_CMD_GET_STATION,
6021 .doit = nl80211_get_station,
2ec600d6 6022 .dumpit = nl80211_dump_station,
5727ef1b 6023 .policy = nl80211_policy,
4c476991
JB		 6024 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6025 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6026 },
6027 {
6028 .cmd = NL80211_CMD_SET_STATION,
6029 .doit = nl80211_set_station,
6030 .policy = nl80211_policy,
6031 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6032 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6033 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6034 },
6035 {
6036 .cmd = NL80211_CMD_NEW_STATION,
6037 .doit = nl80211_new_station,
6038 .policy = nl80211_policy,
6039 .flags = GENL_ADMIN_PERM,
41265714 6040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6041 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6042 },
6043 {
6044 .cmd = NL80211_CMD_DEL_STATION,
6045 .doit = nl80211_del_station,
6046 .policy = nl80211_policy,
2ec600d6 6047 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6048 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6049 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6050 },
6051 {
6052 .cmd = NL80211_CMD_GET_MPATH,
6053 .doit = nl80211_get_mpath,
6054 .dumpit = nl80211_dump_mpath,
6055 .policy = nl80211_policy,
6056 .flags = GENL_ADMIN_PERM,
41265714 6057 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6058 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6059 },
6060 {
6061 .cmd = NL80211_CMD_SET_MPATH,
6062 .doit = nl80211_set_mpath,
6063 .policy = nl80211_policy,
6064 .flags = GENL_ADMIN_PERM,
41265714 6065 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6066 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6067 },
6068 {
6069 .cmd = NL80211_CMD_NEW_MPATH,
6070 .doit = nl80211_new_mpath,
6071 .policy = nl80211_policy,
6072 .flags = GENL_ADMIN_PERM,
41265714 6073 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6074 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6075 },
6076 {
6077 .cmd = NL80211_CMD_DEL_MPATH,
6078 .doit = nl80211_del_mpath,
6079 .policy = nl80211_policy,
9f1ba906 6080 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6081 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6082 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6083 },
6084 {
6085 .cmd = NL80211_CMD_SET_BSS,
6086 .doit = nl80211_set_bss,
6087 .policy = nl80211_policy,
b2e1b302 6088 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6089 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6090 NL80211_FLAG_NEED_RTNL,
b2e1b302 6091 },
f130347c
LR		 6092 {
6093 .cmd = NL80211_CMD_GET_REG,
6094 .doit = nl80211_get_reg,
6095 .policy = nl80211_policy,
6096 /* can be retrieved by unprivileged users */
6097 },
b2e1b302
LR		 6098 {
6099 .cmd = NL80211_CMD_SET_REG,
6100 .doit = nl80211_set_reg,
6101 .policy = nl80211_policy,
6102 .flags = GENL_ADMIN_PERM,
6103 },
6104 {
6105 .cmd = NL80211_CMD_REQ_SET_REG,
6106 .doit = nl80211_req_set_reg,
6107 .policy = nl80211_policy,
93da9cc1 6108 .flags = GENL_ADMIN_PERM,
6109 },
6110 {
24bdd9f4
JC		 6111 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6112 .doit = nl80211_get_mesh_config,
93da9cc1 6113 .policy = nl80211_policy,
6114 /* can be retrieved by unprivileged users */
4c476991
JB		 6115 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6116 NL80211_FLAG_NEED_RTNL,
93da9cc1 6117 },
6118 {
24bdd9f4
JC		 6119 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6120 .doit = nl80211_update_mesh_config,
93da9cc1 6121 .policy = nl80211_policy,
9aed3cc1 6122 .flags = GENL_ADMIN_PERM,
29cbe68c 6123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6124 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6125 },
2a519311
JB		 6126 {
6127 .cmd = NL80211_CMD_TRIGGER_SCAN,
6128 .doit = nl80211_trigger_scan,
6129 .policy = nl80211_policy,
6130 .flags = GENL_ADMIN_PERM,
41265714 6131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6132 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6133 },
6134 {
6135 .cmd = NL80211_CMD_GET_SCAN,
6136 .policy = nl80211_policy,
6137 .dumpit = nl80211_dump_scan,
6138 },
807f8a8c
LC		 6139 {
6140 .cmd = NL80211_CMD_START_SCHED_SCAN,
6141 .doit = nl80211_start_sched_scan,
6142 .policy = nl80211_policy,
6143 .flags = GENL_ADMIN_PERM,
6144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6145 NL80211_FLAG_NEED_RTNL,
6146 },
6147 {
6148 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6149 .doit = nl80211_stop_sched_scan,
6150 .policy = nl80211_policy,
6151 .flags = GENL_ADMIN_PERM,
6152 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6153 NL80211_FLAG_NEED_RTNL,
6154 },
636a5d36
JM		 6155 {
6156 .cmd = NL80211_CMD_AUTHENTICATE,
6157 .doit = nl80211_authenticate,
6158 .policy = nl80211_policy,
6159 .flags = GENL_ADMIN_PERM,
41265714 6160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6161 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6162 },
6163 {
6164 .cmd = NL80211_CMD_ASSOCIATE,
6165 .doit = nl80211_associate,
6166 .policy = nl80211_policy,
6167 .flags = GENL_ADMIN_PERM,
41265714 6168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6169 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6170 },
6171 {
6172 .cmd = NL80211_CMD_DEAUTHENTICATE,
6173 .doit = nl80211_deauthenticate,
6174 .policy = nl80211_policy,
6175 .flags = GENL_ADMIN_PERM,
41265714 6176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6177 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6178 },
6179 {
6180 .cmd = NL80211_CMD_DISASSOCIATE,
6181 .doit = nl80211_disassociate,
6182 .policy = nl80211_policy,
6183 .flags = GENL_ADMIN_PERM,
41265714 6184 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6185 NL80211_FLAG_NEED_RTNL,
636a5d36 6186 },
04a773ad
JB		 6187 {
6188 .cmd = NL80211_CMD_JOIN_IBSS,
6189 .doit = nl80211_join_ibss,
6190 .policy = nl80211_policy,
6191 .flags = GENL_ADMIN_PERM,
41265714 6192 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6193 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6194 },
6195 {
6196 .cmd = NL80211_CMD_LEAVE_IBSS,
6197 .doit = nl80211_leave_ibss,
6198 .policy = nl80211_policy,
6199 .flags = GENL_ADMIN_PERM,
41265714 6200 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6201 NL80211_FLAG_NEED_RTNL,
04a773ad 6202 },
aff89a9b
JB		 6203#ifdef CONFIG_NL80211_TESTMODE
6204 {
6205 .cmd = NL80211_CMD_TESTMODE,
6206 .doit = nl80211_testmode_do,
71063f0e 6207 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6208 .policy = nl80211_policy,
6209 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6210 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6211 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6212 },
6213#endif
b23aa676
SO		 6214 {
6215 .cmd = NL80211_CMD_CONNECT,
6216 .doit = nl80211_connect,
6217 .policy = nl80211_policy,
6218 .flags = GENL_ADMIN_PERM,
41265714 6219 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6220 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6221 },
6222 {
6223 .cmd = NL80211_CMD_DISCONNECT,
6224 .doit = nl80211_disconnect,
6225 .policy = nl80211_policy,
6226 .flags = GENL_ADMIN_PERM,
41265714 6227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6228 NL80211_FLAG_NEED_RTNL,
b23aa676 6229 },
463d0183
JB		 6230 {
6231 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6232 .doit = nl80211_wiphy_netns,
6233 .policy = nl80211_policy,
6234 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6235 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6236 NL80211_FLAG_NEED_RTNL,
463d0183 6237 },
61fa713c
HS		 6238 {
6239 .cmd = NL80211_CMD_GET_SURVEY,
6240 .policy = nl80211_policy,
6241 .dumpit = nl80211_dump_survey,
6242 },
67fbb16b
SO		 6243 {
6244 .cmd = NL80211_CMD_SET_PMKSA,
6245 .doit = nl80211_setdel_pmksa,
6246 .policy = nl80211_policy,
6247 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6248 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6249 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6250 },
6251 {
6252 .cmd = NL80211_CMD_DEL_PMKSA,
6253 .doit = nl80211_setdel_pmksa,
6254 .policy = nl80211_policy,
6255 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6256 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6257 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6258 },
6259 {
6260 .cmd = NL80211_CMD_FLUSH_PMKSA,
6261 .doit = nl80211_flush_pmksa,
6262 .policy = nl80211_policy,
6263 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6264 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6265 NL80211_FLAG_NEED_RTNL,
67fbb16b 6266 },
9588bbd5
JM		 6267 {
6268 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6269 .doit = nl80211_remain_on_channel,
6270 .policy = nl80211_policy,
6271 .flags = GENL_ADMIN_PERM,
41265714 6272 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6273 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6274 },
6275 {
6276 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6277 .doit = nl80211_cancel_remain_on_channel,
6278 .policy = nl80211_policy,
6279 .flags = GENL_ADMIN_PERM,
41265714 6280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6281 NL80211_FLAG_NEED_RTNL,
9588bbd5 6282 },
13ae75b1
JM		 6283 {
6284 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6285 .doit = nl80211_set_tx_bitrate_mask,
6286 .policy = nl80211_policy,
6287 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6288 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6289 NL80211_FLAG_NEED_RTNL,
13ae75b1 6290 },
026331c4 6291 {
2e161f78
JB		 6292 .cmd = NL80211_CMD_REGISTER_FRAME,
6293 .doit = nl80211_register_mgmt,
026331c4
JM		 6294 .policy = nl80211_policy,
6295 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6296 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6297 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6298 },
6299 {
2e161f78
JB		 6300 .cmd = NL80211_CMD_FRAME,
6301 .doit = nl80211_tx_mgmt,
026331c4 6302 .policy = nl80211_policy,
f7ca38df
JB		 6303 .flags = GENL_ADMIN_PERM,
6304 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6305 NL80211_FLAG_NEED_RTNL,
6306 },
6307 {
6308 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6309 .doit = nl80211_tx_mgmt_cancel_wait,
6310 .policy = nl80211_policy,
026331c4 6311 .flags = GENL_ADMIN_PERM,
41265714 6312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6313 NL80211_FLAG_NEED_RTNL,
026331c4 6314 },
ffb9eb3d
KV		 6315 {
6316 .cmd = NL80211_CMD_SET_POWER_SAVE,
6317 .doit = nl80211_set_power_save,
6318 .policy = nl80211_policy,
6319 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6320 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6321 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6322 },
6323 {
6324 .cmd = NL80211_CMD_GET_POWER_SAVE,
6325 .doit = nl80211_get_power_save,
6326 .policy = nl80211_policy,
6327 /* can be retrieved by unprivileged users */
4c476991
JB		 6328 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6329 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6330 },
d6dc1a38
JO		 6331 {
6332 .cmd = NL80211_CMD_SET_CQM,
6333 .doit = nl80211_set_cqm,
6334 .policy = nl80211_policy,
6335 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6336 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6337 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6338 },
f444de05
JB		 6339 {
6340 .cmd = NL80211_CMD_SET_CHANNEL,
6341 .doit = nl80211_set_channel,
6342 .policy = nl80211_policy,
6343 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6344 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6345 NL80211_FLAG_NEED_RTNL,
f444de05 6346 },
e8347eba
BJ		 6347 {
6348 .cmd = NL80211_CMD_SET_WDS_PEER,
6349 .doit = nl80211_set_wds_peer,
6350 .policy = nl80211_policy,
6351 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6353 NL80211_FLAG_NEED_RTNL,
e8347eba 6354 },
29cbe68c
JB		 6355 {
6356 .cmd = NL80211_CMD_JOIN_MESH,
6357 .doit = nl80211_join_mesh,
6358 .policy = nl80211_policy,
6359 .flags = GENL_ADMIN_PERM,
6360 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6361 NL80211_FLAG_NEED_RTNL,
6362 },
6363 {
6364 .cmd = NL80211_CMD_LEAVE_MESH,
6365 .doit = nl80211_leave_mesh,
6366 .policy = nl80211_policy,
6367 .flags = GENL_ADMIN_PERM,
6368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6369 NL80211_FLAG_NEED_RTNL,
6370 },
ff1b6e69
JB		 6371 {
6372 .cmd = NL80211_CMD_GET_WOWLAN,
6373 .doit = nl80211_get_wowlan,
6374 .policy = nl80211_policy,
6375 /* can be retrieved by unprivileged users */
6376 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6377 NL80211_FLAG_NEED_RTNL,
6378 },
6379 {
6380 .cmd = NL80211_CMD_SET_WOWLAN,
6381 .doit = nl80211_set_wowlan,
6382 .policy = nl80211_policy,
6383 .flags = GENL_ADMIN_PERM,
6384 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6385 NL80211_FLAG_NEED_RTNL,
6386 },
e5497d76
JB		 6387 {
6388 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6389 .doit = nl80211_set_rekey_data,
6390 .policy = nl80211_policy,
6391 .flags = GENL_ADMIN_PERM,
6392 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6393 NL80211_FLAG_NEED_RTNL,
6394 },
109086ce
AN		 6395 {
6396 .cmd = NL80211_CMD_TDLS_MGMT,
6397 .doit = nl80211_tdls_mgmt,
6398 .policy = nl80211_policy,
6399 .flags = GENL_ADMIN_PERM,
6400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6401 NL80211_FLAG_NEED_RTNL,
6402 },
6403 {
6404 .cmd = NL80211_CMD_TDLS_OPER,
6405 .doit = nl80211_tdls_oper,
6406 .policy = nl80211_policy,
6407 .flags = GENL_ADMIN_PERM,
6408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6409 NL80211_FLAG_NEED_RTNL,
6410 },
28946da7
JB		 6411 {
6412 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6413 .doit = nl80211_register_unexpected_frame,
6414 .policy = nl80211_policy,
6415 .flags = GENL_ADMIN_PERM,
6416 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6417 NL80211_FLAG_NEED_RTNL,
6418 },
55682965 6419};
9588bbd5 6420
6039f6d2
JM		 6421static struct genl_multicast_group nl80211_mlme_mcgrp = {
6422 .name = "mlme",
6423};
55682965
JB		 6424
6425/* multicast groups */
6426static struct genl_multicast_group nl80211_config_mcgrp = {
6427 .name = "config",
6428};
2a519311
JB		 6429static struct genl_multicast_group nl80211_scan_mcgrp = {
6430 .name = "scan",
6431};
73d54c9e
LR		 6432static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6433 .name = "regulatory",
6434};
55682965
JB		 6435
6436/* notification functions */
6437
6438void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6439{
6440 struct sk_buff *msg;
6441
fd2120ca 6442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6443 if (!msg)
6444 return;
6445
6446 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6447 nlmsg_free(msg);
6448 return;
6449 }
6450
463d0183
JB		 6451 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6452 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6453}
6454
362a415d
JB		 6455static int nl80211_add_scan_req(struct sk_buff *msg,
6456 struct cfg80211_registered_device *rdev)
6457{
6458 struct cfg80211_scan_request *req = rdev->scan_req;
6459 struct nlattr *nest;
6460 int i;
6461
667503dd
JB		 6462 ASSERT_RDEV_LOCK(rdev);
6463
362a415d
JB		 6464 if (WARN_ON(!req))
6465 return 0;
6466
6467 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6468 if (!nest)
6469 goto nla_put_failure;
6470 for (i = 0; i < req->n_ssids; i++)
6471 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6472 nla_nest_end(msg, nest);
6473
6474 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6475 if (!nest)
6476 goto nla_put_failure;
6477 for (i = 0; i < req->n_channels; i++)
6478 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6479 nla_nest_end(msg, nest);
6480
6481 if (req->ie)
6482 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6483
6484 return 0;
6485 nla_put_failure:
6486 return -ENOBUFS;
6487}
6488
a538e2d5
JB		 6489static int nl80211_send_scan_msg(struct sk_buff *msg,
6490 struct cfg80211_registered_device *rdev,
6491 struct net_device *netdev,
6492 u32 pid, u32 seq, int flags,
6493 u32 cmd)
2a519311
JB		 6494{
6495 void *hdr;
6496
6497 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6498 if (!hdr)
6499 return -1;
6500
b5850a7a 6501 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6502 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6503
362a415d
JB		 6504 /* ignore errors and send incomplete event anyway */
6505 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6506
6507 return genlmsg_end(msg, hdr);
6508
6509 nla_put_failure:
6510 genlmsg_cancel(msg, hdr);
6511 return -EMSGSIZE;
6512}
6513
807f8a8c
LC		 6514static int
6515nl80211_send_sched_scan_msg(struct sk_buff *msg,
6516 struct cfg80211_registered_device *rdev,
6517 struct net_device *netdev,
6518 u32 pid, u32 seq, int flags, u32 cmd)
6519{
6520 void *hdr;
6521
6522 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6523 if (!hdr)
6524 return -1;
6525
6526 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6527 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6528
6529 return genlmsg_end(msg, hdr);
6530
6531 nla_put_failure:
6532 genlmsg_cancel(msg, hdr);
6533 return -EMSGSIZE;
6534}
6535
a538e2d5
JB		 6536void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6537 struct net_device *netdev)
6538{
6539 struct sk_buff *msg;
6540
6541 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6542 if (!msg)
6543 return;
6544
6545 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6546 NL80211_CMD_TRIGGER_SCAN) < 0) {
6547 nlmsg_free(msg);
6548 return;
6549 }
6550
463d0183
JB		 6551 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6552 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6553}
6554
2a519311
JB		 6555void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6556 struct net_device *netdev)
6557{
6558 struct sk_buff *msg;
6559
fd2120ca 6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6561 if (!msg)
6562 return;
6563
a538e2d5
JB		 6564 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6565 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6566 nlmsg_free(msg);
6567 return;
6568 }
6569
463d0183
JB		 6570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6571 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6572}
6573
6574void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6575 struct net_device *netdev)
6576{
6577 struct sk_buff *msg;
6578
fd2120ca 6579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6580 if (!msg)
6581 return;
6582
a538e2d5
JB		 6583 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6584 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6585 nlmsg_free(msg);
6586 return;
6587 }
6588
463d0183
JB		 6589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6590 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6591}
6592
807f8a8c
LC		 6593void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6594 struct net_device *netdev)
6595{
6596 struct sk_buff *msg;
6597
6598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6599 if (!msg)
6600 return;
6601
6602 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6603 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6604 nlmsg_free(msg);
6605 return;
6606 }
6607
6608 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6609 nl80211_scan_mcgrp.id, GFP_KERNEL);
6610}
6611
6612void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6613 struct net_device *netdev, u32 cmd)
6614{
6615 struct sk_buff *msg;
6616
6617 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6618 if (!msg)
6619 return;
6620
6621 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6622 nlmsg_free(msg);
6623 return;
6624 }
6625
6626 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6627 nl80211_scan_mcgrp.id, GFP_KERNEL);
6628}
6629
73d54c9e
LR		 6630/*
6631 * This can happen on global regulatory changes or device specific settings
6632 * based on custom world regulatory domains.
6633 */
6634void nl80211_send_reg_change_event(struct regulatory_request *request)
6635{
6636 struct sk_buff *msg;
6637 void *hdr;
6638
fd2120ca 6639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6640 if (!msg)
6641 return;
6642
6643 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6644 if (!hdr) {
6645 nlmsg_free(msg);
6646 return;
6647 }
6648
6649 /* Userspace can always count this one always being set */
6650 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6651
6652 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6653 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6654 NL80211_REGDOM_TYPE_WORLD);
6655 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6656 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6657 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6658 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6659 request->intersect)
6660 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6661 NL80211_REGDOM_TYPE_INTERSECTION);
6662 else {
6663 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6664 NL80211_REGDOM_TYPE_COUNTRY);
6665 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6666 }
6667
6668 if (wiphy_idx_valid(request->wiphy_idx))
6669 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6670
3b7b72ee 6671 genlmsg_end(msg, hdr);
73d54c9e 6672
bc43b28c 6673 rcu_read_lock();
463d0183 6674 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6675 GFP_ATOMIC);
6676 rcu_read_unlock();
73d54c9e
LR		 6677
6678 return;
6679
6680nla_put_failure:
6681 genlmsg_cancel(msg, hdr);
6682 nlmsg_free(msg);
6683}
6684
6039f6d2
JM		 6685static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6686 struct net_device *netdev,
6687 const u8 *buf, size_t len,
e6d6e342 6688 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6689{
6690 struct sk_buff *msg;
6691 void *hdr;
6692
e6d6e342 6693 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6694 if (!msg)
6695 return;
6696
6697 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6698 if (!hdr) {
6699 nlmsg_free(msg);
6700 return;
6701 }
6702
6703 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6704 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6705 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6706
3b7b72ee 6707 genlmsg_end(msg, hdr);
6039f6d2 6708
463d0183
JB		 6709 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6710 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6711 return;
6712
6713 nla_put_failure:
6714 genlmsg_cancel(msg, hdr);
6715 nlmsg_free(msg);
6716}
6717
6718void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6719 struct net_device *netdev, const u8 *buf,
6720 size_t len, gfp_t gfp)
6039f6d2
JM		 6721{
6722 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6723 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6724}
6725
6726void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6727 struct net_device *netdev, const u8 *buf,
e6d6e342 6728 size_t len, gfp_t gfp)
6039f6d2 6729{
e6d6e342
JB		 6730 nl80211_send_mlme_event(rdev, netdev, buf, len,
6731 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6732}
6733
53b46b84 6734void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6735 struct net_device *netdev, const u8 *buf,
6736 size_t len, gfp_t gfp)
6039f6d2
JM		 6737{
6738 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6739 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 6740}
6741
53b46b84
JM		 6742void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
6743 struct net_device *netdev, const u8 *buf,
e6d6e342 6744 size_t len, gfp_t gfp)
6039f6d2
JM		 6745{
6746 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6747 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 6748}
6749
cf4e594e
JM		 6750void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
6751 struct net_device *netdev, const u8 *buf,
6752 size_t len, gfp_t gfp)
6753{
6754 nl80211_send_mlme_event(rdev, netdev, buf, len,
6755 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
6756}
6757
6758void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
6759 struct net_device *netdev, const u8 *buf,
6760 size_t len, gfp_t gfp)
6761{
6762 nl80211_send_mlme_event(rdev, netdev, buf, len,
6763 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
6764}
6765
1b06bb40
LR		 6766static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
6767 struct net_device *netdev, int cmd,
e6d6e342 6768 const u8 *addr, gfp_t gfp)
1965c853
JM		 6769{
6770 struct sk_buff *msg;
6771 void *hdr;
6772
e6d6e342 6773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 6774 if (!msg)
6775 return;
6776
6777 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6778 if (!hdr) {
6779 nlmsg_free(msg);
6780 return;
6781 }
6782
6783 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6784 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6785 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
6786 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
6787
3b7b72ee 6788 genlmsg_end(msg, hdr);
1965c853 6789
463d0183
JB		 6790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6791 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 6792 return;
6793
6794 nla_put_failure:
6795 genlmsg_cancel(msg, hdr);
6796 nlmsg_free(msg);
6797}
6798
6799void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6800 struct net_device *netdev, const u8 *addr,
6801 gfp_t gfp)
1965c853
JM		 6802{
6803 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 6804 addr, gfp);
1965c853
JM		 6805}
6806
6807void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6808 struct net_device *netdev, const u8 *addr,
6809 gfp_t gfp)
1965c853 6810{
e6d6e342
JB		 6811 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
6812 addr, gfp);
1965c853
JM		 6813}
6814
b23aa676
SO		 6815void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
6816 struct net_device *netdev, const u8 *bssid,
6817 const u8 *req_ie, size_t req_ie_len,
6818 const u8 *resp_ie, size_t resp_ie_len,
6819 u16 status, gfp_t gfp)
6820{
6821 struct sk_buff *msg;
6822 void *hdr;
6823
6824 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6825 if (!msg)
6826 return;
6827
6828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
6829 if (!hdr) {
6830 nlmsg_free(msg);
6831 return;
6832 }
6833
6834 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6835 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6836 if (bssid)
6837 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6838 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
6839 if (req_ie)
6840 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6841 if (resp_ie)
6842 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6843
3b7b72ee 6844 genlmsg_end(msg, hdr);
b23aa676 6845
463d0183
JB		 6846 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6847 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6848 return;
6849
6850 nla_put_failure:
6851 genlmsg_cancel(msg, hdr);
6852 nlmsg_free(msg);
6853
6854}
6855
6856void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
6857 struct net_device *netdev, const u8 *bssid,
6858 const u8 *req_ie, size_t req_ie_len,
6859 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
6860{
6861 struct sk_buff *msg;
6862 void *hdr;
6863
6864 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
6865 if (!msg)
6866 return;
6867
6868 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
6869 if (!hdr) {
6870 nlmsg_free(msg);
6871 return;
6872 }
6873
6874 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6875 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6876 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6877 if (req_ie)
6878 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
6879 if (resp_ie)
6880 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
6881
3b7b72ee 6882 genlmsg_end(msg, hdr);
b23aa676 6883
463d0183
JB		 6884 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6885 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 6886 return;
6887
6888 nla_put_failure:
6889 genlmsg_cancel(msg, hdr);
6890 nlmsg_free(msg);
6891
6892}
6893
6894void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
6895 struct net_device *netdev, u16 reason,
667503dd 6896 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 6897{
6898 struct sk_buff *msg;
6899 void *hdr;
6900
667503dd 6901 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 6902 if (!msg)
6903 return;
6904
6905 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
6906 if (!hdr) {
6907 nlmsg_free(msg);
6908 return;
6909 }
6910
6911 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6912 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6913 if (from_ap && reason)
6914 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
6915 if (from_ap)
6916 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
6917 if (ie)
6918 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
6919
3b7b72ee 6920 genlmsg_end(msg, hdr);
b23aa676 6921
463d0183
JB		 6922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6923 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 6924 return;
6925
6926 nla_put_failure:
6927 genlmsg_cancel(msg, hdr);
6928 nlmsg_free(msg);
6929
6930}
6931
04a773ad
JB		 6932void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
6933 struct net_device *netdev, const u8 *bssid,
6934 gfp_t gfp)
6935{
6936 struct sk_buff *msg;
6937 void *hdr;
6938
fd2120ca 6939 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 6940 if (!msg)
6941 return;
6942
6943 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
6944 if (!hdr) {
6945 nlmsg_free(msg);
6946 return;
6947 }
6948
6949 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6950 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6951 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
6952
3b7b72ee 6953 genlmsg_end(msg, hdr);
04a773ad 6954
463d0183
JB		 6955 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6956 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 6957 return;
6958
6959 nla_put_failure:
6960 genlmsg_cancel(msg, hdr);
6961 nlmsg_free(msg);
6962}
6963
c93b5e71
JC		 6964void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
6965 struct net_device *netdev,
6966 const u8 *macaddr, const u8* ie, u8 ie_len,
6967 gfp_t gfp)
6968{
6969 struct sk_buff *msg;
6970 void *hdr;
6971
6972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6973 if (!msg)
6974 return;
6975
6976 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
6977 if (!hdr) {
6978 nlmsg_free(msg);
6979 return;
6980 }
6981
6982 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6983 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6984 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
6985 if (ie_len && ie)
6986 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
6987
3b7b72ee 6988 genlmsg_end(msg, hdr);
c93b5e71
JC		 6989
6990 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6991 nl80211_mlme_mcgrp.id, gfp);
6992 return;
6993
6994 nla_put_failure:
6995 genlmsg_cancel(msg, hdr);
6996 nlmsg_free(msg);
6997}
6998
a3b8b056
JM		 6999void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7000 struct net_device *netdev, const u8 *addr,
7001 enum nl80211_key_type key_type, int key_id,
e6d6e342 7002 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7003{
7004 struct sk_buff *msg;
7005 void *hdr;
7006
e6d6e342 7007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7008 if (!msg)
7009 return;
7010
7011 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7012 if (!hdr) {
7013 nlmsg_free(msg);
7014 return;
7015 }
7016
7017 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7018 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7019 if (addr)
7020 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7021 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7022 if (key_id != -1)
7023 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7024 if (tsc)
7025 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7026
3b7b72ee 7027 genlmsg_end(msg, hdr);
a3b8b056 7028
463d0183
JB		 7029 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7030 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7031 return;
7032
7033 nla_put_failure:
7034 genlmsg_cancel(msg, hdr);
7035 nlmsg_free(msg);
7036}
7037
6bad8766
LR		 7038void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7039 struct ieee80211_channel *channel_before,
7040 struct ieee80211_channel *channel_after)
7041{
7042 struct sk_buff *msg;
7043 void *hdr;
7044 struct nlattr *nl_freq;
7045
fd2120ca 7046 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7047 if (!msg)
7048 return;
7049
7050 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7051 if (!hdr) {
7052 nlmsg_free(msg);
7053 return;
7054 }
7055
7056 /*
7057 * Since we are applying the beacon hint to a wiphy we know its
7058 * wiphy_idx is valid
7059 */
7060 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7061
7062 /* Before */
7063 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7064 if (!nl_freq)
7065 goto nla_put_failure;
7066 if (nl80211_msg_put_channel(msg, channel_before))
7067 goto nla_put_failure;
7068 nla_nest_end(msg, nl_freq);
7069
7070 /* After */
7071 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7072 if (!nl_freq)
7073 goto nla_put_failure;
7074 if (nl80211_msg_put_channel(msg, channel_after))
7075 goto nla_put_failure;
7076 nla_nest_end(msg, nl_freq);
7077
3b7b72ee 7078 genlmsg_end(msg, hdr);
6bad8766 7079
463d0183
JB		 7080 rcu_read_lock();
7081 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7082 GFP_ATOMIC);
7083 rcu_read_unlock();
6bad8766
LR		 7084
7085 return;
7086
7087nla_put_failure:
7088 genlmsg_cancel(msg, hdr);
7089 nlmsg_free(msg);
7090}
7091
9588bbd5
JM		 7092static void nl80211_send_remain_on_chan_event(
7093 int cmd, struct cfg80211_registered_device *rdev,
7094 struct net_device *netdev, u64 cookie,
7095 struct ieee80211_channel *chan,
7096 enum nl80211_channel_type channel_type,
7097 unsigned int duration, gfp_t gfp)
7098{
7099 struct sk_buff *msg;
7100 void *hdr;
7101
7102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7103 if (!msg)
7104 return;
7105
7106 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7107 if (!hdr) {
7108 nlmsg_free(msg);
7109 return;
7110 }
7111
7112 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7113 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7114 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7115 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7116 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7117
7118 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7119 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7120
3b7b72ee 7121 genlmsg_end(msg, hdr);
9588bbd5
JM		 7122
7123 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7124 nl80211_mlme_mcgrp.id, gfp);
7125 return;
7126
7127 nla_put_failure:
7128 genlmsg_cancel(msg, hdr);
7129 nlmsg_free(msg);
7130}
7131
7132void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7133 struct net_device *netdev, u64 cookie,
7134 struct ieee80211_channel *chan,
7135 enum nl80211_channel_type channel_type,
7136 unsigned int duration, gfp_t gfp)
7137{
7138 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7139 rdev, netdev, cookie, chan,
7140 channel_type, duration, gfp);
7141}
7142
7143void nl80211_send_remain_on_channel_cancel(
7144 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7145 u64 cookie, struct ieee80211_channel *chan,
7146 enum nl80211_channel_type channel_type, gfp_t gfp)
7147{
7148 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7149 rdev, netdev, cookie, chan,
7150 channel_type, 0, gfp);
7151}
7152
98b62183
JB		 7153void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7154 struct net_device *dev, const u8 *mac_addr,
7155 struct station_info *sinfo, gfp_t gfp)
7156{
7157 struct sk_buff *msg;
7158
7159 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7160 if (!msg)
7161 return;
7162
7163 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7164 nlmsg_free(msg);
7165 return;
7166 }
7167
7168 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7169 nl80211_mlme_mcgrp.id, gfp);
7170}
7171
ec15e68b
JM		 7172void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7173 struct net_device *dev, const u8 *mac_addr,
7174 gfp_t gfp)
7175{
7176 struct sk_buff *msg;
7177 void *hdr;
7178
7179 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7180 if (!msg)
7181 return;
7182
7183 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7184 if (!hdr) {
7185 nlmsg_free(msg);
7186 return;
7187 }
7188
7189 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7190 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7191
3b7b72ee 7192 genlmsg_end(msg, hdr);
ec15e68b
JM		 7193
7194 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7195 nl80211_mlme_mcgrp.id, gfp);
7196 return;
7197
7198 nla_put_failure:
7199 genlmsg_cancel(msg, hdr);
7200 nlmsg_free(msg);
7201}
7202
28946da7
JB		 7203bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7204{
7205 struct wireless_dev *wdev = dev->ieee80211_ptr;
7206 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7207 struct sk_buff *msg;
7208 void *hdr;
7209 int err;
7210 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7211
7212 if (!nlpid)
7213 return false;
7214
7215 msg = nlmsg_new(100, gfp);
7216 if (!msg)
7217 return true;
7218
7219 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UNEXPECTED_FRAME);
7220 if (!hdr) {
7221 nlmsg_free(msg);
7222 return true;
7223 }
7224
7225 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7226 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7227 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7228
7229 err = genlmsg_end(msg, hdr);
7230 if (err < 0) {
7231 nlmsg_free(msg);
7232 return true;
7233 }
7234
7235 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7236 return true;
7237
7238 nla_put_failure:
7239 genlmsg_cancel(msg, hdr);
7240 nlmsg_free(msg);
7241 return true;
7242}
7243
2e161f78
JB		 7244int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7245 struct net_device *netdev, u32 nlpid,
7246 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7247{
7248 struct sk_buff *msg;
7249 void *hdr;
026331c4
JM		 7250
7251 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7252 if (!msg)
7253 return -ENOMEM;
7254
2e161f78 7255 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7256 if (!hdr) {
7257 nlmsg_free(msg);
7258 return -ENOMEM;
7259 }
7260
7261 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7262 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7263 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7264 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7265
3b7b72ee 7266 genlmsg_end(msg, hdr);
026331c4 7267
3b7b72ee 7268 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7269
7270 nla_put_failure:
7271 genlmsg_cancel(msg, hdr);
7272 nlmsg_free(msg);
7273 return -ENOBUFS;
7274}
7275
2e161f78
JB		 7276void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7277 struct net_device *netdev, u64 cookie,
7278 const u8 *buf, size_t len, bool ack,
7279 gfp_t gfp)
026331c4
JM		 7280{
7281 struct sk_buff *msg;
7282 void *hdr;
7283
7284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7285 if (!msg)
7286 return;
7287
2e161f78 7288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7289 if (!hdr) {
7290 nlmsg_free(msg);
7291 return;
7292 }
7293
7294 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7295 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7296 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7297 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7298 if (ack)
7299 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7300
3b7b72ee 7301 genlmsg_end(msg, hdr);
026331c4
JM		 7302
7303 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7304 return;
7305
7306 nla_put_failure:
7307 genlmsg_cancel(msg, hdr);
7308 nlmsg_free(msg);
7309}
7310
d6dc1a38
JO		 7311void
7312nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7313 struct net_device *netdev,
7314 enum nl80211_cqm_rssi_threshold_event rssi_event,
7315 gfp_t gfp)
7316{
7317 struct sk_buff *msg;
7318 struct nlattr *pinfoattr;
7319 void *hdr;
7320
7321 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7322 if (!msg)
7323 return;
7324
7325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7326 if (!hdr) {
7327 nlmsg_free(msg);
7328 return;
7329 }
7330
7331 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7332 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7333
7334 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7335 if (!pinfoattr)
7336 goto nla_put_failure;
7337
7338 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7339 rssi_event);
7340
7341 nla_nest_end(msg, pinfoattr);
7342
3b7b72ee 7343 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7344
7345 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7346 nl80211_mlme_mcgrp.id, gfp);
7347 return;
7348
7349 nla_put_failure:
7350 genlmsg_cancel(msg, hdr);
7351 nlmsg_free(msg);
7352}
7353
e5497d76
JB		 7354void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7355 struct net_device *netdev, const u8 *bssid,
7356 const u8 *replay_ctr, gfp_t gfp)
7357{
7358 struct sk_buff *msg;
7359 struct nlattr *rekey_attr;
7360 void *hdr;
7361
7362 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7363 if (!msg)
7364 return;
7365
7366 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7367 if (!hdr) {
7368 nlmsg_free(msg);
7369 return;
7370 }
7371
7372 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7373 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7374 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7375
7376 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7377 if (!rekey_attr)
7378 goto nla_put_failure;
7379
7380 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7381 NL80211_REPLAY_CTR_LEN, replay_ctr);
7382
7383 nla_nest_end(msg, rekey_attr);
7384
3b7b72ee 7385 genlmsg_end(msg, hdr);
e5497d76
JB		 7386
7387 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7388 nl80211_mlme_mcgrp.id, gfp);
7389 return;
7390
7391 nla_put_failure:
7392 genlmsg_cancel(msg, hdr);
7393 nlmsg_free(msg);
7394}
7395
c9df56b4
JM		 7396void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7397 struct net_device *netdev, int index,
7398 const u8 *bssid, bool preauth, gfp_t gfp)
7399{
7400 struct sk_buff *msg;
7401 struct nlattr *attr;
7402 void *hdr;
7403
7404 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7405 if (!msg)
7406 return;
7407
7408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7409 if (!hdr) {
7410 nlmsg_free(msg);
7411 return;
7412 }
7413
7414 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7415 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7416
7417 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7418 if (!attr)
7419 goto nla_put_failure;
7420
7421 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7422 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7423 if (preauth)
7424 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7425
7426 nla_nest_end(msg, attr);
7427
3b7b72ee 7428 genlmsg_end(msg, hdr);
c9df56b4
JM		 7429
7430 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7431 nl80211_mlme_mcgrp.id, gfp);
7432 return;
7433
7434 nla_put_failure:
7435 genlmsg_cancel(msg, hdr);
7436 nlmsg_free(msg);
7437}
7438
c063dbf5
JB		 7439void
7440nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7441 struct net_device *netdev, const u8 *peer,
7442 u32 num_packets, gfp_t gfp)
7443{
7444 struct sk_buff *msg;
7445 struct nlattr *pinfoattr;
7446 void *hdr;
7447
7448 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7449 if (!msg)
7450 return;
7451
7452 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7453 if (!hdr) {
7454 nlmsg_free(msg);
7455 return;
7456 }
7457
7458 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7460 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7461
7462 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7463 if (!pinfoattr)
7464 goto nla_put_failure;
7465
7466 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7467
7468 nla_nest_end(msg, pinfoattr);
7469
3b7b72ee 7470 genlmsg_end(msg, hdr);
c063dbf5
JB		 7471
7472 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7473 nl80211_mlme_mcgrp.id, gfp);
7474 return;
7475
7476 nla_put_failure:
7477 genlmsg_cancel(msg, hdr);
7478 nlmsg_free(msg);
7479}
7480
026331c4
JM		 7481static int nl80211_netlink_notify(struct notifier_block * nb,
7482 unsigned long state,
7483 void *_notify)
7484{
7485 struct netlink_notify *notify = _notify;
7486 struct cfg80211_registered_device *rdev;
7487 struct wireless_dev *wdev;
7488
7489 if (state != NETLINK_URELEASE)
7490 return NOTIFY_DONE;
7491
7492 rcu_read_lock();
7493
7494 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
7495 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7496 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 7497
7498 rcu_read_unlock();
7499
7500 return NOTIFY_DONE;
7501}
7502
7503static struct notifier_block nl80211_netlink_notifier = {
7504 .notifier_call = nl80211_netlink_notify,
7505};
7506
55682965
JB		 7507/* initialisation/exit functions */
7508
7509int nl80211_init(void)
7510{
0d63cbb5 7511 int err;
55682965 7512
0d63cbb5
MM		 7513 err = genl_register_family_with_ops(&nl80211_fam,
7514 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7515 if (err)
7516 return err;
7517
55682965
JB		 7518 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7519 if (err)
7520 goto err_out;
7521
2a519311
JB		 7522 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7523 if (err)
7524 goto err_out;
7525
73d54c9e
LR		 7526 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7527 if (err)
7528 goto err_out;
7529
6039f6d2
JM		 7530 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7531 if (err)
7532 goto err_out;
7533
aff89a9b
JB		 7534#ifdef CONFIG_NL80211_TESTMODE
7535 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7536 if (err)
7537 goto err_out;
7538#endif
7539
026331c4
JM		 7540 err = netlink_register_notifier(&nl80211_netlink_notifier);
7541 if (err)
7542 goto err_out;
7543
55682965
JB		 7544 return 0;
7545 err_out:
7546 genl_unregister_family(&nl80211_fam);
7547 return err;
7548}
7549
7550void nl80211_exit(void)
7551{
026331c4 7552 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7553 genl_unregister_family(&nl80211_fam);
7554}
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