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nl80211: add support for mcs masks
[linux-block.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
5a0e3ad6 10#include <linux/slab.h>
55682965
JB		 11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
2a519311 17#include <linux/etherdevice.h>
463d0183 18#include <net/net_namespace.h>
55682965
JB		 19#include <net/genetlink.h>
20#include <net/cfg80211.h>
463d0183 21#include <net/sock.h>
55682965
JB		 22#include "core.h"
23#include "nl80211.h"
b2e1b302 24#include "reg.h"
55682965 25
5fb628e9
JM		 26static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
30 int cipher_limit);
31
4c476991
JB		 32static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36
55682965
JB		 37/* the netlink family */
38static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
463d0183 44 .netnsok = true,
4c476991
JB		 45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
55682965
JB		 47};
48
79c97e97 49/* internal helper: get rdev and dev */
00918d33
JB		 50static int get_rdev_dev_by_ifindex(struct net *netns, struct nlattr **attrs,
51 struct cfg80211_registered_device **rdev,
52 struct net_device **dev)
55682965
JB		 53{
54 int ifindex;
55
bba95fef 56 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 57 return -EINVAL;
58
bba95fef 59 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
00918d33 60 *dev = dev_get_by_index(netns, ifindex);
55682965
JB		 61 if (!*dev)
62 return -ENODEV;
63
00918d33 64 *rdev = cfg80211_get_dev_from_ifindex(netns, ifindex);
79c97e97 65 if (IS_ERR(*rdev)) {
55682965 66 dev_put(*dev);
79c97e97 67 return PTR_ERR(*rdev);
55682965
JB		 68 }
69
70 return 0;
71}
72
73/* policy for the attributes */
b54452b0 74static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 75 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
76 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 77 .len = 20-1 },
31888487 78 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 79 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 80 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 81 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
82 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
83 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
84 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 85 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 86
87 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
88 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
89 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f 90
e007b857
EP		 91 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
92 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
41ade00f 93
b9454e83 94 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 95 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
96 .len = WLAN_MAX_KEY_LEN },
97 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
98 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
99 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
81962267 100 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
e31b8213 101 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 102
103 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
104 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
105 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
106 .len = IEEE80211_MAX_DATA_LEN },
107 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
108 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 109 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
110 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
111 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
112 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
113 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 114 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 115 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 116 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 117 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
118 .len = IEEE80211_MAX_MESH_ID_LEN },
119 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 120
b2e1b302
LR		 121 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
122 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
123
9f1ba906
JM		 124 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
125 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
126 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 127 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
128 .len = NL80211_MAX_SUPP_RATES },
50b12f59 129 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
36aedc90 130
24bdd9f4 131 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
15d5dda6 132 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
93da9cc1 133
6c739419 134 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 135
136 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
137 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
138 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 139 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
140 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 141
142 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
143 .len = IEEE80211_MAX_SSID_LEN },
144 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
145 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 146 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 147 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 148 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 149 [NL80211_ATTR_STA_FLAGS2] = {
150 .len = sizeof(struct nl80211_sta_flag_update),
151 },
3f77316c 152 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 153 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
154 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 155 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
156 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
157 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 158 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 159 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 160 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
161 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 162 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
163 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 164 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 165 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
166 .len = IEEE80211_MAX_DATA_LEN },
167 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 168 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 169 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 170 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 171 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 172 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
173 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 174 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
afe0cbf8
BR		 175 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
176 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
885a46d0 177 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
f7ca38df 178 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
dbd2fd65 179 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
ff1b6e69 180 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
9c3990aa 181 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
bbe6ad6d 182 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
e5497d76 183 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
34850ab2 184 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
32e9de84 185 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
9946ecfb
JM		 186 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
187 .len = IEEE80211_MAX_DATA_LEN },
188 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
189 .len = IEEE80211_MAX_DATA_LEN },
f4b34b55 190 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
a1f1c21c 191 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
e9f935e3 192 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
109086ce
AN		 193 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
194 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
195 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
196 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
197 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
e247bd90 198 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
00f740e1
AN		 199 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
200 .len = IEEE80211_MAX_DATA_LEN },
8b60b078 201 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
7e7c8926
BG		 202 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
203 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
204 .len = NL80211_HT_CAPABILITY_LEN
205 },
1d9d9213 206 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
55682965
JB		 207};
208
e31b8213 209/* policy for the key attributes */
b54452b0 210static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 211 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 212 [NL80211_KEY_IDX] = { .type = NLA_U8 },
213 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
81962267 214 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
b9454e83
JB		 215 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
216 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 217 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
dbd2fd65
JB		 218 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
219};
220
221/* policy for the key default flags */
222static const struct nla_policy
223nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
224 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
225 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
b9454e83
JB		 226};
227
ff1b6e69
JB		 228/* policy for WoWLAN attributes */
229static const struct nla_policy
230nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
231 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
232 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
233 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
234 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
77dbbb13
JB		 235 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
236 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
237 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
238 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
ff1b6e69
JB		 239};
240
e5497d76
JB		 241/* policy for GTK rekey offload attributes */
242static const struct nla_policy
243nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
244 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
245 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
246 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
247};
248
a1f1c21c
LC		 249static const struct nla_policy
250nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
251 [NL80211_ATTR_SCHED_SCAN_MATCH_SSID] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_SSID_LEN },
253};
254
a043897a
HS		 255/* ifidx get helper */
256static int nl80211_get_ifidx(struct netlink_callback *cb)
257{
258 int res;
259
260 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
261 nl80211_fam.attrbuf, nl80211_fam.maxattr,
262 nl80211_policy);
263 if (res)
264 return res;
265
266 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
267 return -EINVAL;
268
269 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
270 if (!res)
271 return -EINVAL;
272 return res;
273}
274
67748893
JB		 275static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
276 struct netlink_callback *cb,
277 struct cfg80211_registered_device **rdev,
278 struct net_device **dev)
279{
280 int ifidx = cb->args[0];
281 int err;
282
283 if (!ifidx)
284 ifidx = nl80211_get_ifidx(cb);
285 if (ifidx < 0)
286 return ifidx;
287
288 cb->args[0] = ifidx;
289
290 rtnl_lock();
291
292 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
293 if (!*dev) {
294 err = -ENODEV;
295 goto out_rtnl;
296 }
297
298 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3cc25e51
FF		 299 if (IS_ERR(*rdev)) {
300 err = PTR_ERR(*rdev);
67748893
JB		 301 goto out_rtnl;
302 }
303
304 return 0;
305 out_rtnl:
306 rtnl_unlock();
307 return err;
308}
309
310static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
311{
312 cfg80211_unlock_rdev(rdev);
313 rtnl_unlock();
314}
315
f4a11bb0
JB		 316/* IE validation */
317static bool is_valid_ie_attr(const struct nlattr *attr)
318{
319 const u8 *pos;
320 int len;
321
322 if (!attr)
323 return true;
324
325 pos = nla_data(attr);
326 len = nla_len(attr);
327
328 while (len) {
329 u8 elemlen;
330
331 if (len < 2)
332 return false;
333 len -= 2;
334
335 elemlen = pos[1];
336 if (elemlen > len)
337 return false;
338
339 len -= elemlen;
340 pos += 2 + elemlen;
341 }
342
343 return true;
344}
345
55682965
JB		 346/* message building helper */
347static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
348 int flags, u8 cmd)
349{
350 /* since there is no private header just add the generic one */
351 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
352}
353
5dab3b8a
LR		 354static int nl80211_msg_put_channel(struct sk_buff *msg,
355 struct ieee80211_channel *chan)
356{
357 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
358 chan->center_freq);
359
360 if (chan->flags & IEEE80211_CHAN_DISABLED)
361 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
362 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
363 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
364 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
365 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
366 if (chan->flags & IEEE80211_CHAN_RADAR)
367 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
368
369 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
370 DBM_TO_MBM(chan->max_power));
371
372 return 0;
373
374 nla_put_failure:
375 return -ENOBUFS;
376}
377
55682965
JB		 378/* netlink command implementations */
379
b9454e83
JB		 380struct key_parse {
381 struct key_params p;
382 int idx;
e31b8213 383 int type;
b9454e83 384 bool def, defmgmt;
dbd2fd65 385 bool def_uni, def_multi;
b9454e83
JB		 386};
387
388static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
389{
390 struct nlattr *tb[NL80211_KEY_MAX + 1];
391 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
392 nl80211_key_policy);
393 if (err)
394 return err;
395
396 k->def = !!tb[NL80211_KEY_DEFAULT];
397 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
398
dbd2fd65
JB		 399 if (k->def) {
400 k->def_uni = true;
401 k->def_multi = true;
402 }
403 if (k->defmgmt)
404 k->def_multi = true;
405
b9454e83
JB		 406 if (tb[NL80211_KEY_IDX])
407 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
408
409 if (tb[NL80211_KEY_DATA]) {
410 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
411 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
412 }
413
414 if (tb[NL80211_KEY_SEQ]) {
415 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
416 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
417 }
418
419 if (tb[NL80211_KEY_CIPHER])
420 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
421
e31b8213
JB		 422 if (tb[NL80211_KEY_TYPE]) {
423 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
424 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
425 return -EINVAL;
426 }
427
dbd2fd65
JB		 428 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
429 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
2da8f419
JB		 430 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
431 tb[NL80211_KEY_DEFAULT_TYPES],
432 nl80211_key_default_policy);
dbd2fd65
JB		 433 if (err)
434 return err;
435
436 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
437 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
438 }
439
b9454e83
JB		 440 return 0;
441}
442
443static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
444{
445 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
446 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
447 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
448 }
449
450 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
451 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
452 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
453 }
454
455 if (info->attrs[NL80211_ATTR_KEY_IDX])
456 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
457
458 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
459 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
460
461 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
462 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
463
dbd2fd65
JB		 464 if (k->def) {
465 k->def_uni = true;
466 k->def_multi = true;
467 }
468 if (k->defmgmt)
469 k->def_multi = true;
470
e31b8213
JB		 471 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
472 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
473 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
474 return -EINVAL;
475 }
476
dbd2fd65
JB		 477 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
478 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
479 int err = nla_parse_nested(
480 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
481 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
482 nl80211_key_default_policy);
483 if (err)
484 return err;
485
486 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
487 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
488 }
489
b9454e83
JB		 490 return 0;
491}
492
493static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
494{
495 int err;
496
497 memset(k, 0, sizeof(*k));
498 k->idx = -1;
e31b8213 499 k->type = -1;
b9454e83
JB		 500
501 if (info->attrs[NL80211_ATTR_KEY])
502 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
503 else
504 err = nl80211_parse_key_old(info, k);
505
506 if (err)
507 return err;
508
509 if (k->def && k->defmgmt)
510 return -EINVAL;
511
dbd2fd65
JB		 512 if (k->defmgmt) {
513 if (k->def_uni || !k->def_multi)
514 return -EINVAL;
515 }
516
b9454e83
JB		 517 if (k->idx != -1) {
518 if (k->defmgmt) {
519 if (k->idx < 4 || k->idx > 5)
520 return -EINVAL;
521 } else if (k->def) {
522 if (k->idx < 0 || k->idx > 3)
523 return -EINVAL;
524 } else {
525 if (k->idx < 0 || k->idx > 5)
526 return -EINVAL;
527 }
528 }
529
530 return 0;
531}
532
fffd0934
JB		 533static struct cfg80211_cached_keys *
534nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
535 struct nlattr *keys)
536{
537 struct key_parse parse;
538 struct nlattr *key;
539 struct cfg80211_cached_keys *result;
540 int rem, err, def = 0;
541
542 result = kzalloc(sizeof(*result), GFP_KERNEL);
543 if (!result)
544 return ERR_PTR(-ENOMEM);
545
546 result->def = -1;
547 result->defmgmt = -1;
548
549 nla_for_each_nested(key, keys, rem) {
550 memset(&parse, 0, sizeof(parse));
551 parse.idx = -1;
552
553 err = nl80211_parse_key_new(key, &parse);
554 if (err)
555 goto error;
556 err = -EINVAL;
557 if (!parse.p.key)
558 goto error;
559 if (parse.idx < 0 || parse.idx > 4)
560 goto error;
561 if (parse.def) {
562 if (def)
563 goto error;
564 def = 1;
565 result->def = parse.idx;
dbd2fd65
JB		 566 if (!parse.def_uni || !parse.def_multi)
567 goto error;
fffd0934
JB		 568 } else if (parse.defmgmt)
569 goto error;
570 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 571 parse.idx, false, NULL);
fffd0934
JB		 572 if (err)
573 goto error;
574 result->params[parse.idx].cipher = parse.p.cipher;
575 result->params[parse.idx].key_len = parse.p.key_len;
576 result->params[parse.idx].key = result->data[parse.idx];
577 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
578 }
579
580 return result;
581 error:
582 kfree(result);
583 return ERR_PTR(err);
584}
585
586static int nl80211_key_allowed(struct wireless_dev *wdev)
587{
588 ASSERT_WDEV_LOCK(wdev);
589
fffd0934
JB		 590 switch (wdev->iftype) {
591 case NL80211_IFTYPE_AP:
592 case NL80211_IFTYPE_AP_VLAN:
074ac8df 593 case NL80211_IFTYPE_P2P_GO:
ff973af7 594 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 595 break;
596 case NL80211_IFTYPE_ADHOC:
597 if (!wdev->current_bss)
598 return -ENOLINK;
599 break;
600 case NL80211_IFTYPE_STATION:
074ac8df 601 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 602 if (wdev->sme_state != CFG80211_SME_CONNECTED)
603 return -ENOLINK;
604 break;
605 default:
606 return -EINVAL;
607 }
608
609 return 0;
610}
611
7527a782
JB		 612static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
613{
614 struct nlattr *nl_modes = nla_nest_start(msg, attr);
615 int i;
616
617 if (!nl_modes)
618 goto nla_put_failure;
619
620 i = 0;
621 while (ifmodes) {
622 if (ifmodes & 1)
623 NLA_PUT_FLAG(msg, i);
624 ifmodes >>= 1;
625 i++;
626 }
627
628 nla_nest_end(msg, nl_modes);
629 return 0;
630
631nla_put_failure:
632 return -ENOBUFS;
633}
634
635static int nl80211_put_iface_combinations(struct wiphy *wiphy,
636 struct sk_buff *msg)
637{
638 struct nlattr *nl_combis;
639 int i, j;
640
641 nl_combis = nla_nest_start(msg,
642 NL80211_ATTR_INTERFACE_COMBINATIONS);
643 if (!nl_combis)
644 goto nla_put_failure;
645
646 for (i = 0; i < wiphy->n_iface_combinations; i++) {
647 const struct ieee80211_iface_combination *c;
648 struct nlattr *nl_combi, *nl_limits;
649
650 c = &wiphy->iface_combinations[i];
651
652 nl_combi = nla_nest_start(msg, i + 1);
653 if (!nl_combi)
654 goto nla_put_failure;
655
656 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
657 if (!nl_limits)
658 goto nla_put_failure;
659
660 for (j = 0; j < c->n_limits; j++) {
661 struct nlattr *nl_limit;
662
663 nl_limit = nla_nest_start(msg, j + 1);
664 if (!nl_limit)
665 goto nla_put_failure;
666 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
667 c->limits[j].max);
668 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
669 c->limits[j].types))
670 goto nla_put_failure;
671 nla_nest_end(msg, nl_limit);
672 }
673
674 nla_nest_end(msg, nl_limits);
675
676 if (c->beacon_int_infra_match)
677 NLA_PUT_FLAG(msg,
678 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
679 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
680 c->num_different_channels);
681 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
682 c->max_interfaces);
683
684 nla_nest_end(msg, nl_combi);
685 }
686
687 nla_nest_end(msg, nl_combis);
688
689 return 0;
690nla_put_failure:
691 return -ENOBUFS;
692}
693
55682965
JB		 694static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
695 struct cfg80211_registered_device *dev)
696{
697 void *hdr;
ee688b00
JB		 698 struct nlattr *nl_bands, *nl_band;
699 struct nlattr *nl_freqs, *nl_freq;
700 struct nlattr *nl_rates, *nl_rate;
8fdc621d 701 struct nlattr *nl_cmds;
ee688b00
JB		 702 enum ieee80211_band band;
703 struct ieee80211_channel *chan;
704 struct ieee80211_rate *rate;
705 int i;
2e161f78
JB		 706 const struct ieee80211_txrx_stypes *mgmt_stypes =
707 dev->wiphy.mgmt_stypes;
55682965
JB		 708
709 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
710 if (!hdr)
711 return -1;
712
b5850a7a 713 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 714 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 715
f5ea9120
JB		 716 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
717 cfg80211_rdev_list_generation);
718
b9a5f8ca
JM		 719 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
720 dev->wiphy.retry_short);
721 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
722 dev->wiphy.retry_long);
723 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
724 dev->wiphy.frag_threshold);
725 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
726 dev->wiphy.rts_threshold);
81077e82
LT		 727 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
728 dev->wiphy.coverage_class);
2a519311
JB		 729 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
730 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 731 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
732 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 733 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
734 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 735 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
736 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 737 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
738 dev->wiphy.max_match_sets);
ee688b00 739
e31b8213
JB		 740 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
741 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 742 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
743 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 744 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
745 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 746 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
747 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 748 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
749 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
750 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
751 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 752
25e47c18
JB		 753 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
754 sizeof(u32) * dev->wiphy.n_cipher_suites,
755 dev->wiphy.cipher_suites);
756
67fbb16b
SO		 757 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
758 dev->wiphy.max_num_pmkids);
759
c0692b8f
JB		 760 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
761 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
762
39fd5de4
BR		 763 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
764 dev->wiphy.available_antennas_tx);
765 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
766 dev->wiphy.available_antennas_rx);
767
87bbbe22
AN		 768 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
769 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
770 dev->wiphy.probe_resp_offload);
771
7f531e03
BR		 772 if ((dev->wiphy.available_antennas_tx ||
773 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 774 u32 tx_ant = 0, rx_ant = 0;
775 int res;
776 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
777 if (!res) {
778 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
779 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
780 }
781 }
782
7527a782
JB		 783 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
784 dev->wiphy.interface_modes))
f59ac048
LR		 785 goto nla_put_failure;
786
ee688b00
JB		 787 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
788 if (!nl_bands)
789 goto nla_put_failure;
790
791 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
792 if (!dev->wiphy.bands[band])
793 continue;
794
795 nl_band = nla_nest_start(msg, band);
796 if (!nl_band)
797 goto nla_put_failure;
798
d51626df
JB		 799 /* add HT info */
800 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
801 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
802 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
803 &dev->wiphy.bands[band]->ht_cap.mcs);
804 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
805 dev->wiphy.bands[band]->ht_cap.cap);
806 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
807 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
808 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
809 dev->wiphy.bands[band]->ht_cap.ampdu_density);
810 }
811
ee688b00
JB		 812 /* add frequencies */
813 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
814 if (!nl_freqs)
815 goto nla_put_failure;
816
817 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
818 nl_freq = nla_nest_start(msg, i);
819 if (!nl_freq)
820 goto nla_put_failure;
821
822 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 823
824 if (nl80211_msg_put_channel(msg, chan))
825 goto nla_put_failure;
e2f367f2 826
ee688b00
JB		 827 nla_nest_end(msg, nl_freq);
828 }
829
830 nla_nest_end(msg, nl_freqs);
831
832 /* add bitrates */
833 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
834 if (!nl_rates)
835 goto nla_put_failure;
836
837 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
838 nl_rate = nla_nest_start(msg, i);
839 if (!nl_rate)
840 goto nla_put_failure;
841
842 rate = &dev->wiphy.bands[band]->bitrates[i];
843 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
844 rate->bitrate);
845 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
846 NLA_PUT_FLAG(msg,
847 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
848
849 nla_nest_end(msg, nl_rate);
850 }
851
852 nla_nest_end(msg, nl_rates);
853
854 nla_nest_end(msg, nl_band);
855 }
856 nla_nest_end(msg, nl_bands);
857
8fdc621d
JB		 858 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
859 if (!nl_cmds)
860 goto nla_put_failure;
861
862 i = 0;
863#define CMD(op, n) \
864 do { \
865 if (dev->ops->op) { \
866 i++; \
867 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
868 } \
869 } while (0)
870
871 CMD(add_virtual_intf, NEW_INTERFACE);
872 CMD(change_virtual_intf, SET_INTERFACE);
873 CMD(add_key, NEW_KEY);
874 CMD(add_beacon, NEW_BEACON);
875 CMD(add_station, NEW_STATION);
876 CMD(add_mpath, NEW_MPATH);
24bdd9f4 877 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 878 CMD(change_bss, SET_BSS);
636a5d36
JM		 879 CMD(auth, AUTHENTICATE);
880 CMD(assoc, ASSOCIATE);
881 CMD(deauth, DEAUTHENTICATE);
882 CMD(disassoc, DISASSOCIATE);
04a773ad 883 CMD(join_ibss, JOIN_IBSS);
29cbe68c 884 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 885 CMD(set_pmksa, SET_PMKSA);
886 CMD(del_pmksa, DEL_PMKSA);
887 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 888 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
889 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 890 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 891 CMD(mgmt_tx, FRAME);
f7ca38df 892 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 893 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 894 i++;
895 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
896 }
f444de05 897 CMD(set_channel, SET_CHANNEL);
e8347eba 898 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 899 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
900 CMD(tdls_mgmt, TDLS_MGMT);
901 CMD(tdls_oper, TDLS_OPER);
902 }
807f8a8c
LC		 903 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
904 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 905 CMD(probe_client, PROBE_CLIENT);
1d9d9213 906 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 907 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
908 i++;
909 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
910 }
8fdc621d 911
4745fc09
KV		 912#ifdef CONFIG_NL80211_TESTMODE
913 CMD(testmode_cmd, TESTMODE);
914#endif
915
8fdc621d 916#undef CMD
b23aa676 917
6829c878 918 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 919 i++;
920 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
921 }
922
6829c878 923 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 924 i++;
925 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
926 }
927
8fdc621d
JB		 928 nla_nest_end(msg, nl_cmds);
929
7c4ef712
JB		 930 if (dev->ops->remain_on_channel &&
931 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
a293911d
JB		 932 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
933 dev->wiphy.max_remain_on_channel_duration);
934
7c4ef712 935 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
f7ca38df
JB		 936 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
937
2e161f78
JB		 938 if (mgmt_stypes) {
939 u16 stypes;
940 struct nlattr *nl_ftypes, *nl_ifs;
941 enum nl80211_iftype ift;
942
943 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
944 if (!nl_ifs)
945 goto nla_put_failure;
946
947 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
948 nl_ftypes = nla_nest_start(msg, ift);
949 if (!nl_ftypes)
950 goto nla_put_failure;
951 i = 0;
952 stypes = mgmt_stypes[ift].tx;
953 while (stypes) {
954 if (stypes & 1)
955 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
956 (i << 4) | IEEE80211_FTYPE_MGMT);
957 stypes >>= 1;
958 i++;
959 }
960 nla_nest_end(msg, nl_ftypes);
961 }
962
74b70a4e
JB		 963 nla_nest_end(msg, nl_ifs);
964
2e161f78
JB		 965 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
966 if (!nl_ifs)
967 goto nla_put_failure;
968
969 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
970 nl_ftypes = nla_nest_start(msg, ift);
971 if (!nl_ftypes)
972 goto nla_put_failure;
973 i = 0;
974 stypes = mgmt_stypes[ift].rx;
975 while (stypes) {
976 if (stypes & 1)
977 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
978 (i << 4) | IEEE80211_FTYPE_MGMT);
979 stypes >>= 1;
980 i++;
981 }
982 nla_nest_end(msg, nl_ftypes);
983 }
984 nla_nest_end(msg, nl_ifs);
985 }
986
ff1b6e69
JB		 987 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
988 struct nlattr *nl_wowlan;
989
990 nl_wowlan = nla_nest_start(msg,
991 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
992 if (!nl_wowlan)
993 goto nla_put_failure;
994
995 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
996 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
997 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
998 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
999 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1000 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 1001 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1002 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1003 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1004 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1005 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1006 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1007 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1008 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1009 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1010 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 1011 if (dev->wiphy.wowlan.n_patterns) {
1012 struct nl80211_wowlan_pattern_support pat = {
1013 .max_patterns = dev->wiphy.wowlan.n_patterns,
1014 .min_pattern_len =
1015 dev->wiphy.wowlan.pattern_min_len,
1016 .max_pattern_len =
1017 dev->wiphy.wowlan.pattern_max_len,
1018 };
1019 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1020 sizeof(pat), &pat);
1021 }
1022
1023 nla_nest_end(msg, nl_wowlan);
1024 }
1025
7527a782
JB		 1026 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1027 dev->wiphy.software_iftypes))
1028 goto nla_put_failure;
1029
1030 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1031 goto nla_put_failure;
1032
562a7480
JB		 1033 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1034 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1035 dev->wiphy.ap_sme_capa);
1036
1f074bd8
JB		 1037 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1038
7e7c8926
BG		 1039 if (dev->wiphy.ht_capa_mod_mask)
1040 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1041 sizeof(*dev->wiphy.ht_capa_mod_mask),
1042 dev->wiphy.ht_capa_mod_mask);
1043
55682965
JB		 1044 return genlmsg_end(msg, hdr);
1045
1046 nla_put_failure:
bc3ed28c
TG		 1047 genlmsg_cancel(msg, hdr);
1048 return -EMSGSIZE;
55682965
JB		 1049}
1050
1051static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1052{
1053 int idx = 0;
1054 int start = cb->args[0];
1055 struct cfg80211_registered_device *dev;
1056
a1794390 1057 mutex_lock(&cfg80211_mutex);
79c97e97 1058 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1059 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1060 continue;
b4637271 1061 if (++idx <= start)
55682965
JB		 1062 continue;
1063 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1064 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1065 dev) < 0) {
1066 idx--;
55682965 1067 break;
b4637271 1068 }
55682965 1069 }
a1794390 1070 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1071
1072 cb->args[0] = idx;
1073
1074 return skb->len;
1075}
1076
1077static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1078{
1079 struct sk_buff *msg;
4c476991 1080 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1081
fd2120ca 1082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1083 if (!msg)
4c476991 1084 return -ENOMEM;
55682965 1085
4c476991
JB		 1086 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1087 nlmsg_free(msg);
1088 return -ENOBUFS;
1089 }
55682965 1090
134e6375 1091 return genlmsg_reply(msg, info);
55682965
JB		 1092}
1093
31888487
JM		 1094static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1095 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1096 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1097 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1098 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1100};
1101
1102static int parse_txq_params(struct nlattr *tb[],
1103 struct ieee80211_txq_params *txq_params)
1104{
1105 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1106 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1107 !tb[NL80211_TXQ_ATTR_AIFS])
1108 return -EINVAL;
1109
1110 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1111 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1112 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1113 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1114 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1115
1116 return 0;
1117}
1118
f444de05
JB		 1119static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1120{
1121 /*
1122 * You can only set the channel explicitly for AP, mesh
1123 * and WDS type interfaces; all others have their channel
1124 * managed via their respective "establish a connection"
1125 * command (connect, join, ...)
1126 *
1127 * Monitors are special as they are normally slaved to
1128 * whatever else is going on, so they behave as though
1129 * you tried setting the wiphy channel itself.
1130 */
1131 return !wdev ||
1132 wdev->iftype == NL80211_IFTYPE_AP ||
1133 wdev->iftype == NL80211_IFTYPE_WDS ||
1134 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1135 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1136 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1137}
1138
1139static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1140 struct wireless_dev *wdev,
1141 struct genl_info *info)
1142{
1143 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1144 u32 freq;
1145 int result;
1146
1147 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1148 return -EINVAL;
1149
1150 if (!nl80211_can_set_dev_channel(wdev))
1151 return -EOPNOTSUPP;
1152
1153 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1154 channel_type = nla_get_u32(info->attrs[
1155 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1156 if (channel_type != NL80211_CHAN_NO_HT &&
1157 channel_type != NL80211_CHAN_HT20 &&
1158 channel_type != NL80211_CHAN_HT40PLUS &&
1159 channel_type != NL80211_CHAN_HT40MINUS)
1160 return -EINVAL;
1161 }
1162
1163 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1164
1165 mutex_lock(&rdev->devlist_mtx);
1166 if (wdev) {
1167 wdev_lock(wdev);
1168 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1169 wdev_unlock(wdev);
1170 } else {
1171 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1172 }
1173 mutex_unlock(&rdev->devlist_mtx);
1174
1175 return result;
1176}
1177
1178static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1179{
4c476991
JB		 1180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1181 struct net_device *netdev = info->user_ptr[1];
f444de05 1182
4c476991 1183 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1184}
1185
e8347eba
BJ		 1186static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1187{
43b19952
JB		 1188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1189 struct net_device *dev = info->user_ptr[1];
1190 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1191 const u8 *bssid;
e8347eba
BJ		 1192
1193 if (!info->attrs[NL80211_ATTR_MAC])
1194 return -EINVAL;
1195
43b19952
JB		 1196 if (netif_running(dev))
1197 return -EBUSY;
e8347eba 1198
43b19952
JB		 1199 if (!rdev->ops->set_wds_peer)
1200 return -EOPNOTSUPP;
e8347eba 1201
43b19952
JB		 1202 if (wdev->iftype != NL80211_IFTYPE_WDS)
1203 return -EOPNOTSUPP;
e8347eba
BJ		 1204
1205 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1206 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1207}
1208
1209
55682965
JB		 1210static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1211{
1212 struct cfg80211_registered_device *rdev;
f444de05
JB		 1213 struct net_device *netdev = NULL;
1214 struct wireless_dev *wdev;
a1e567c8 1215 int result = 0, rem_txq_params = 0;
31888487 1216 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1217 u32 changed;
1218 u8 retry_short = 0, retry_long = 0;
1219 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1220 u8 coverage_class = 0;
55682965 1221
f444de05
JB		 1222 /*
1223 * Try to find the wiphy and netdev. Normally this
1224 * function shouldn't need the netdev, but this is
1225 * done for backward compatibility -- previously
1226 * setting the channel was done per wiphy, but now
1227 * it is per netdev. Previous userland like hostapd
1228 * also passed a netdev to set_wiphy, so that it is
1229 * possible to let that go to the right netdev!
1230 */
4bbf4d56
JB		 1231 mutex_lock(&cfg80211_mutex);
1232
f444de05
JB		 1233 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1234 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1235
1236 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1237 if (netdev && netdev->ieee80211_ptr) {
1238 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1239 mutex_lock(&rdev->mtx);
1240 } else
1241 netdev = NULL;
4bbf4d56
JB		 1242 }
1243
f444de05
JB		 1244 if (!netdev) {
1245 rdev = __cfg80211_rdev_from_info(info);
1246 if (IS_ERR(rdev)) {
1247 mutex_unlock(&cfg80211_mutex);
4c476991 1248 return PTR_ERR(rdev);
f444de05
JB		 1249 }
1250 wdev = NULL;
1251 netdev = NULL;
1252 result = 0;
1253
1254 mutex_lock(&rdev->mtx);
1255 } else if (netif_running(netdev) &&
1256 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1257 wdev = netdev->ieee80211_ptr;
1258 else
1259 wdev = NULL;
1260
1261 /*
1262 * end workaround code, by now the rdev is available
1263 * and locked, and wdev may or may not be NULL.
1264 */
4bbf4d56
JB		 1265
1266 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1267 result = cfg80211_dev_rename(
1268 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1269
1270 mutex_unlock(&cfg80211_mutex);
1271
1272 if (result)
1273 goto bad_res;
31888487
JM		 1274
1275 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1276 struct ieee80211_txq_params txq_params;
1277 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1278
1279 if (!rdev->ops->set_txq_params) {
1280 result = -EOPNOTSUPP;
1281 goto bad_res;
1282 }
1283
f70f01c2
EP		 1284 if (!netdev) {
1285 result = -EINVAL;
1286 goto bad_res;
1287 }
1288
133a3ff2
JB		 1289 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1290 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1291 result = -EINVAL;
1292 goto bad_res;
1293 }
1294
31888487
JM		 1295 nla_for_each_nested(nl_txq_params,
1296 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1297 rem_txq_params) {
1298 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1299 nla_data(nl_txq_params),
1300 nla_len(nl_txq_params),
1301 txq_params_policy);
1302 result = parse_txq_params(tb, &txq_params);
1303 if (result)
1304 goto bad_res;
1305
1306 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1307 netdev,
31888487
JM		 1308 &txq_params);
1309 if (result)
1310 goto bad_res;
1311 }
1312 }
55682965 1313
72bdcf34 1314 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1315 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1316 if (result)
1317 goto bad_res;
1318 }
1319
98d2ff8b
JO		 1320 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1321 enum nl80211_tx_power_setting type;
1322 int idx, mbm = 0;
1323
1324 if (!rdev->ops->set_tx_power) {
60ea385f 1325 result = -EOPNOTSUPP;
98d2ff8b
JO		 1326 goto bad_res;
1327 }
1328
1329 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1330 type = nla_get_u32(info->attrs[idx]);
1331
1332 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1333 (type != NL80211_TX_POWER_AUTOMATIC)) {
1334 result = -EINVAL;
1335 goto bad_res;
1336 }
1337
1338 if (type != NL80211_TX_POWER_AUTOMATIC) {
1339 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1340 mbm = nla_get_u32(info->attrs[idx]);
1341 }
1342
1343 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1344 if (result)
1345 goto bad_res;
1346 }
1347
afe0cbf8
BR		 1348 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1349 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1350 u32 tx_ant, rx_ant;
7f531e03
BR		 1351 if ((!rdev->wiphy.available_antennas_tx &&
1352 !rdev->wiphy.available_antennas_rx) ||
1353 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1354 result = -EOPNOTSUPP;
1355 goto bad_res;
1356 }
1357
1358 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1359 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1360
a7ffac95 1361 /* reject antenna configurations which don't match the
7f531e03
BR		 1362 * available antenna masks, except for the "all" mask */
1363 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1364 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1365 result = -EINVAL;
1366 goto bad_res;
1367 }
1368
7f531e03
BR		 1369 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1370 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1371
afe0cbf8
BR		 1372 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1373 if (result)
1374 goto bad_res;
1375 }
1376
b9a5f8ca
JM		 1377 changed = 0;
1378
1379 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1380 retry_short = nla_get_u8(
1381 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1382 if (retry_short == 0) {
1383 result = -EINVAL;
1384 goto bad_res;
1385 }
1386 changed |= WIPHY_PARAM_RETRY_SHORT;
1387 }
1388
1389 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1390 retry_long = nla_get_u8(
1391 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1392 if (retry_long == 0) {
1393 result = -EINVAL;
1394 goto bad_res;
1395 }
1396 changed |= WIPHY_PARAM_RETRY_LONG;
1397 }
1398
1399 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1400 frag_threshold = nla_get_u32(
1401 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1402 if (frag_threshold < 256) {
1403 result = -EINVAL;
1404 goto bad_res;
1405 }
1406 if (frag_threshold != (u32) -1) {
1407 /*
1408 * Fragments (apart from the last one) are required to
1409 * have even length. Make the fragmentation code
1410 * simpler by stripping LSB should someone try to use
1411 * odd threshold value.
1412 */
1413 frag_threshold &= ~0x1;
1414 }
1415 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1416 }
1417
1418 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1419 rts_threshold = nla_get_u32(
1420 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1421 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1422 }
1423
81077e82
LT		 1424 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1425 coverage_class = nla_get_u8(
1426 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1427 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1428 }
1429
b9a5f8ca
JM		 1430 if (changed) {
1431 u8 old_retry_short, old_retry_long;
1432 u32 old_frag_threshold, old_rts_threshold;
81077e82 1433 u8 old_coverage_class;
b9a5f8ca
JM		 1434
1435 if (!rdev->ops->set_wiphy_params) {
1436 result = -EOPNOTSUPP;
1437 goto bad_res;
1438 }
1439
1440 old_retry_short = rdev->wiphy.retry_short;
1441 old_retry_long = rdev->wiphy.retry_long;
1442 old_frag_threshold = rdev->wiphy.frag_threshold;
1443 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1444 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1445
1446 if (changed & WIPHY_PARAM_RETRY_SHORT)
1447 rdev->wiphy.retry_short = retry_short;
1448 if (changed & WIPHY_PARAM_RETRY_LONG)
1449 rdev->wiphy.retry_long = retry_long;
1450 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1451 rdev->wiphy.frag_threshold = frag_threshold;
1452 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1453 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1454 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1455 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1456
1457 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1458 if (result) {
1459 rdev->wiphy.retry_short = old_retry_short;
1460 rdev->wiphy.retry_long = old_retry_long;
1461 rdev->wiphy.frag_threshold = old_frag_threshold;
1462 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1463 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1464 }
1465 }
72bdcf34 1466
306d6112 1467 bad_res:
4bbf4d56 1468 mutex_unlock(&rdev->mtx);
f444de05
JB		 1469 if (netdev)
1470 dev_put(netdev);
55682965
JB		 1471 return result;
1472}
1473
1474
1475static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1476 struct cfg80211_registered_device *rdev,
55682965
JB		 1477 struct net_device *dev)
1478{
1479 void *hdr;
1480
1481 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1482 if (!hdr)
1483 return -1;
1484
1485 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1486 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1487 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1488 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1489
1490 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1491 rdev->devlist_generation ^
1492 (cfg80211_rdev_list_generation << 2));
1493
55682965
JB		 1494 return genlmsg_end(msg, hdr);
1495
1496 nla_put_failure:
bc3ed28c
TG		 1497 genlmsg_cancel(msg, hdr);
1498 return -EMSGSIZE;
55682965
JB		 1499}
1500
1501static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1502{
1503 int wp_idx = 0;
1504 int if_idx = 0;
1505 int wp_start = cb->args[0];
1506 int if_start = cb->args[1];
f5ea9120 1507 struct cfg80211_registered_device *rdev;
55682965
JB		 1508 struct wireless_dev *wdev;
1509
a1794390 1510 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1511 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1512 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1513 continue;
bba95fef
JB		 1514 if (wp_idx < wp_start) {
1515 wp_idx++;
55682965 1516 continue;
bba95fef 1517 }
55682965
JB		 1518 if_idx = 0;
1519
f5ea9120
JB		 1520 mutex_lock(&rdev->devlist_mtx);
1521 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1522 if (if_idx < if_start) {
1523 if_idx++;
55682965 1524 continue;
bba95fef 1525 }
55682965
JB		 1526 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1527 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1528 rdev, wdev->netdev) < 0) {
1529 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1530 goto out;
1531 }
1532 if_idx++;
55682965 1533 }
f5ea9120 1534 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1535
1536 wp_idx++;
55682965 1537 }
bba95fef 1538 out:
a1794390 1539 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1540
1541 cb->args[0] = wp_idx;
1542 cb->args[1] = if_idx;
1543
1544 return skb->len;
1545}
1546
1547static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1548{
1549 struct sk_buff *msg;
4c476991
JB		 1550 struct cfg80211_registered_device *dev = info->user_ptr[0];
1551 struct net_device *netdev = info->user_ptr[1];
55682965 1552
fd2120ca 1553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1554 if (!msg)
4c476991 1555 return -ENOMEM;
55682965 1556
d726405a 1557 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1558 dev, netdev) < 0) {
1559 nlmsg_free(msg);
1560 return -ENOBUFS;
1561 }
55682965 1562
134e6375 1563 return genlmsg_reply(msg, info);
55682965
JB		 1564}
1565
66f7ac50
MW		 1566static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1567 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1568 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1569 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1570 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1571 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1572};
1573
1574static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1575{
1576 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1577 int flag;
1578
1579 *mntrflags = 0;
1580
1581 if (!nla)
1582 return -EINVAL;
1583
1584 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1585 nla, mntr_flags_policy))
1586 return -EINVAL;
1587
1588 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1589 if (flags[flag])
1590 *mntrflags |= (1<<flag);
1591
1592 return 0;
1593}
1594
9bc383de 1595static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1596 struct net_device *netdev, u8 use_4addr,
1597 enum nl80211_iftype iftype)
9bc383de 1598{
ad4bb6f8 1599 if (!use_4addr) {
f350a0a8 1600 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1601 return -EBUSY;
9bc383de 1602 return 0;
ad4bb6f8 1603 }
9bc383de
JB		 1604
1605 switch (iftype) {
1606 case NL80211_IFTYPE_AP_VLAN:
1607 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1608 return 0;
1609 break;
1610 case NL80211_IFTYPE_STATION:
1611 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1612 return 0;
1613 break;
1614 default:
1615 break;
1616 }
1617
1618 return -EOPNOTSUPP;
1619}
1620
55682965
JB		 1621static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1622{
4c476991 1623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1624 struct vif_params params;
e36d56b6 1625 int err;
04a773ad 1626 enum nl80211_iftype otype, ntype;
4c476991 1627 struct net_device *dev = info->user_ptr[1];
92ffe055 1628 u32 _flags, *flags = NULL;
ac7f9cfa 1629 bool change = false;
55682965 1630
2ec600d6
LCC		 1631 memset(&params, 0, sizeof(params));
1632
04a773ad 1633 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1634
723b038d 1635 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1636 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1637 if (otype != ntype)
ac7f9cfa 1638 change = true;
4c476991
JB		 1639 if (ntype > NL80211_IFTYPE_MAX)
1640 return -EINVAL;
723b038d
JB		 1641 }
1642
92ffe055 1643 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1644 struct wireless_dev *wdev = dev->ieee80211_ptr;
1645
4c476991
JB		 1646 if (ntype != NL80211_IFTYPE_MESH_POINT)
1647 return -EINVAL;
29cbe68c
JB		 1648 if (netif_running(dev))
1649 return -EBUSY;
1650
1651 wdev_lock(wdev);
1652 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1653 IEEE80211_MAX_MESH_ID_LEN);
1654 wdev->mesh_id_up_len =
1655 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1656 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1657 wdev->mesh_id_up_len);
1658 wdev_unlock(wdev);
2ec600d6
LCC		 1659 }
1660
8b787643
FF		 1661 if (info->attrs[NL80211_ATTR_4ADDR]) {
1662 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1663 change = true;
ad4bb6f8 1664 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1665 if (err)
4c476991 1666 return err;
8b787643
FF		 1667 } else {
1668 params.use_4addr = -1;
1669 }
1670
92ffe055 1671 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1672 if (ntype != NL80211_IFTYPE_MONITOR)
1673 return -EINVAL;
92ffe055
JB		 1674 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1675 &_flags);
ac7f9cfa 1676 if (err)
4c476991 1677 return err;
ac7f9cfa
JB		 1678
1679 flags = &_flags;
1680 change = true;
92ffe055 1681 }
3b85875a 1682
ac7f9cfa 1683 if (change)
3d54d255 1684 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1685 else
1686 err = 0;
60719ffd 1687
9bc383de
JB		 1688 if (!err && params.use_4addr != -1)
1689 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1690
55682965
JB		 1691 return err;
1692}
1693
1694static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1695{
4c476991 1696 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1697 struct vif_params params;
f9e10ce4 1698 struct net_device *dev;
55682965
JB		 1699 int err;
1700 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1701 u32 flags;
55682965 1702
2ec600d6
LCC		 1703 memset(&params, 0, sizeof(params));
1704
55682965
JB		 1705 if (!info->attrs[NL80211_ATTR_IFNAME])
1706 return -EINVAL;
1707
1708 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1709 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1710 if (type > NL80211_IFTYPE_MAX)
1711 return -EINVAL;
1712 }
1713
79c97e97 1714 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1715 !(rdev->wiphy.interface_modes & (1 << type)))
1716 return -EOPNOTSUPP;
55682965 1717
9bc383de 1718 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1719 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1720 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1721 if (err)
4c476991 1722 return err;
9bc383de 1723 }
8b787643 1724
66f7ac50
MW		 1725 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1726 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1727 &flags);
f9e10ce4 1728 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1729 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1730 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1731 if (IS_ERR(dev))
1732 return PTR_ERR(dev);
2ec600d6 1733
29cbe68c
JB		 1734 if (type == NL80211_IFTYPE_MESH_POINT &&
1735 info->attrs[NL80211_ATTR_MESH_ID]) {
1736 struct wireless_dev *wdev = dev->ieee80211_ptr;
1737
1738 wdev_lock(wdev);
1739 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1740 IEEE80211_MAX_MESH_ID_LEN);
1741 wdev->mesh_id_up_len =
1742 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1743 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1744 wdev->mesh_id_up_len);
1745 wdev_unlock(wdev);
1746 }
1747
f9e10ce4 1748 return 0;
55682965
JB		 1749}
1750
1751static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1752{
4c476991
JB		 1753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1754 struct net_device *dev = info->user_ptr[1];
55682965 1755
4c476991
JB		 1756 if (!rdev->ops->del_virtual_intf)
1757 return -EOPNOTSUPP;
55682965 1758
4c476991 1759 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1760}
1761
1d9d9213
SW		 1762static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1763{
1764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1765 struct net_device *dev = info->user_ptr[1];
1766 u16 noack_map;
1767
1768 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1769 return -EINVAL;
1770
1771 if (!rdev->ops->set_noack_map)
1772 return -EOPNOTSUPP;
1773
1774 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1775
1776 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1777}
1778
41ade00f
JB		 1779struct get_key_cookie {
1780 struct sk_buff *msg;
1781 int error;
b9454e83 1782 int idx;
41ade00f
JB		 1783};
1784
1785static void get_key_callback(void *c, struct key_params *params)
1786{
b9454e83 1787 struct nlattr *key;
41ade00f
JB		 1788 struct get_key_cookie *cookie = c;
1789
1790 if (params->key)
1791 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1792 params->key_len, params->key);
1793
1794 if (params->seq)
1795 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1796 params->seq_len, params->seq);
1797
1798 if (params->cipher)
1799 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1800 params->cipher);
1801
b9454e83
JB		 1802 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1803 if (!key)
1804 goto nla_put_failure;
1805
1806 if (params->key)
1807 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1808 params->key_len, params->key);
1809
1810 if (params->seq)
1811 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1812 params->seq_len, params->seq);
1813
1814 if (params->cipher)
1815 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1816 params->cipher);
1817
1818 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1819
1820 nla_nest_end(cookie->msg, key);
1821
41ade00f
JB		 1822 return;
1823 nla_put_failure:
1824 cookie->error = 1;
1825}
1826
1827static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1828{
4c476991 1829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1830 int err;
4c476991 1831 struct net_device *dev = info->user_ptr[1];
41ade00f 1832 u8 key_idx = 0;
e31b8213
JB		 1833 const u8 *mac_addr = NULL;
1834 bool pairwise;
41ade00f
JB		 1835 struct get_key_cookie cookie = {
1836 .error = 0,
1837 };
1838 void *hdr;
1839 struct sk_buff *msg;
1840
1841 if (info->attrs[NL80211_ATTR_KEY_IDX])
1842 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1843
3cfcf6ac 1844 if (key_idx > 5)
41ade00f
JB		 1845 return -EINVAL;
1846
1847 if (info->attrs[NL80211_ATTR_MAC])
1848 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1849
e31b8213
JB		 1850 pairwise = !!mac_addr;
1851 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1852 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1853 if (kt >= NUM_NL80211_KEYTYPES)
1854 return -EINVAL;
1855 if (kt != NL80211_KEYTYPE_GROUP &&
1856 kt != NL80211_KEYTYPE_PAIRWISE)
1857 return -EINVAL;
1858 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1859 }
1860
4c476991
JB		 1861 if (!rdev->ops->get_key)
1862 return -EOPNOTSUPP;
41ade00f 1863
fd2120ca 1864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1865 if (!msg)
1866 return -ENOMEM;
41ade00f
JB		 1867
1868 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1869 NL80211_CMD_NEW_KEY);
4c476991
JB		 1870 if (IS_ERR(hdr))
1871 return PTR_ERR(hdr);
41ade00f
JB		 1872
1873 cookie.msg = msg;
b9454e83 1874 cookie.idx = key_idx;
41ade00f
JB		 1875
1876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1877 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1878 if (mac_addr)
1879 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1880
e31b8213
JB		 1881 if (pairwise && mac_addr &&
1882 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1883 return -ENOENT;
1884
1885 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1886 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1887
1888 if (err)
6c95e2a2 1889 goto free_msg;
41ade00f
JB		 1890
1891 if (cookie.error)
1892 goto nla_put_failure;
1893
1894 genlmsg_end(msg, hdr);
4c476991 1895 return genlmsg_reply(msg, info);
41ade00f
JB		 1896
1897 nla_put_failure:
1898 err = -ENOBUFS;
6c95e2a2 1899 free_msg:
41ade00f 1900 nlmsg_free(msg);
41ade00f
JB		 1901 return err;
1902}
1903
1904static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1905{
4c476991 1906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1907 struct key_parse key;
41ade00f 1908 int err;
4c476991 1909 struct net_device *dev = info->user_ptr[1];
41ade00f 1910
b9454e83
JB		 1911 err = nl80211_parse_key(info, &key);
1912 if (err)
1913 return err;
41ade00f 1914
b9454e83 1915 if (key.idx < 0)
41ade00f
JB		 1916 return -EINVAL;
1917
b9454e83
JB		 1918 /* only support setting default key */
1919 if (!key.def && !key.defmgmt)
41ade00f
JB		 1920 return -EINVAL;
1921
dbd2fd65 1922 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1923
dbd2fd65
JB		 1924 if (key.def) {
1925 if (!rdev->ops->set_default_key) {
1926 err = -EOPNOTSUPP;
1927 goto out;
1928 }
41ade00f 1929
dbd2fd65
JB		 1930 err = nl80211_key_allowed(dev->ieee80211_ptr);
1931 if (err)
1932 goto out;
1933
dbd2fd65
JB		 1934 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1935 key.def_uni, key.def_multi);
1936
1937 if (err)
1938 goto out;
fffd0934 1939
3d23e349 1940#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1941 dev->ieee80211_ptr->wext.default_key = key.idx;
1942#endif
1943 } else {
1944 if (key.def_uni || !key.def_multi) {
1945 err = -EINVAL;
1946 goto out;
1947 }
1948
1949 if (!rdev->ops->set_default_mgmt_key) {
1950 err = -EOPNOTSUPP;
1951 goto out;
1952 }
1953
1954 err = nl80211_key_allowed(dev->ieee80211_ptr);
1955 if (err)
1956 goto out;
1957
1958 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1959 dev, key.idx);
1960 if (err)
1961 goto out;
1962
1963#ifdef CONFIG_CFG80211_WEXT
1964 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1965#endif
dbd2fd65
JB		 1966 }
1967
1968 out:
fffd0934 1969 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1970
41ade00f
JB		 1971 return err;
1972}
1973
1974static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1975{
4c476991 1976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1977 int err;
4c476991 1978 struct net_device *dev = info->user_ptr[1];
b9454e83 1979 struct key_parse key;
e31b8213 1980 const u8 *mac_addr = NULL;
41ade00f 1981
b9454e83
JB		 1982 err = nl80211_parse_key(info, &key);
1983 if (err)
1984 return err;
41ade00f 1985
b9454e83 1986 if (!key.p.key)
41ade00f
JB		 1987 return -EINVAL;
1988
41ade00f
JB		 1989 if (info->attrs[NL80211_ATTR_MAC])
1990 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1991
e31b8213
JB		 1992 if (key.type == -1) {
1993 if (mac_addr)
1994 key.type = NL80211_KEYTYPE_PAIRWISE;
1995 else
1996 key.type = NL80211_KEYTYPE_GROUP;
1997 }
1998
1999 /* for now */
2000 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2001 key.type != NL80211_KEYTYPE_GROUP)
2002 return -EINVAL;
2003
4c476991
JB		 2004 if (!rdev->ops->add_key)
2005 return -EOPNOTSUPP;
25e47c18 2006
e31b8213
JB		 2007 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2008 key.type == NL80211_KEYTYPE_PAIRWISE,
2009 mac_addr))
4c476991 2010 return -EINVAL;
41ade00f 2011
fffd0934
JB		 2012 wdev_lock(dev->ieee80211_ptr);
2013 err = nl80211_key_allowed(dev->ieee80211_ptr);
2014 if (!err)
2015 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2016 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2017 mac_addr, &key.p);
2018 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2019
41ade00f
JB		 2020 return err;
2021}
2022
2023static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2024{
4c476991 2025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2026 int err;
4c476991 2027 struct net_device *dev = info->user_ptr[1];
41ade00f 2028 u8 *mac_addr = NULL;
b9454e83 2029 struct key_parse key;
41ade00f 2030
b9454e83
JB		 2031 err = nl80211_parse_key(info, &key);
2032 if (err)
2033 return err;
41ade00f
JB		 2034
2035 if (info->attrs[NL80211_ATTR_MAC])
2036 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2037
e31b8213
JB		 2038 if (key.type == -1) {
2039 if (mac_addr)
2040 key.type = NL80211_KEYTYPE_PAIRWISE;
2041 else
2042 key.type = NL80211_KEYTYPE_GROUP;
2043 }
2044
2045 /* for now */
2046 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2047 key.type != NL80211_KEYTYPE_GROUP)
2048 return -EINVAL;
2049
4c476991
JB		 2050 if (!rdev->ops->del_key)
2051 return -EOPNOTSUPP;
41ade00f 2052
fffd0934
JB		 2053 wdev_lock(dev->ieee80211_ptr);
2054 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2055
2056 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2057 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2058 err = -ENOENT;
2059
fffd0934 2060 if (!err)
e31b8213
JB		 2061 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2062 key.type == NL80211_KEYTYPE_PAIRWISE,
2063 mac_addr);
41ade00f 2064
3d23e349 2065#ifdef CONFIG_CFG80211_WEXT
08645126 2066 if (!err) {
b9454e83 2067 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2068 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2069 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2070 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2071 }
2072#endif
fffd0934 2073 wdev_unlock(dev->ieee80211_ptr);
08645126 2074
41ade00f
JB		 2075 return err;
2076}
2077
ed1b6cc7
JB		 2078static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2079{
2080 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2081 struct beacon_parameters *info);
4c476991
JB		 2082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2083 struct net_device *dev = info->user_ptr[1];
56d1893d 2084 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2085 struct beacon_parameters params;
56d1893d 2086 int haveinfo = 0, err;
ed1b6cc7 2087
9946ecfb
JM		 2088 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2089 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2090 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2091 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2092 return -EINVAL;
2093
074ac8df 2094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2095 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2096 return -EOPNOTSUPP;
eec60b03 2097
56d1893d
JB		 2098 memset(&params, 0, sizeof(params));
2099
ed1b6cc7
JB		 2100 switch (info->genlhdr->cmd) {
2101 case NL80211_CMD_NEW_BEACON:
2102 /* these are required for NEW_BEACON */
2103 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2104 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2105 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2106 return -EINVAL;
ed1b6cc7 2107
56d1893d
JB		 2108 params.interval =
2109 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2110 params.dtim_period =
2111 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2112
2113 err = cfg80211_validate_beacon_int(rdev, params.interval);
2114 if (err)
2115 return err;
2116
32e9de84
JM		 2117 /*
2118 * In theory, some of these attributes could be required for
2119 * NEW_BEACON, but since they were not used when the command was
2120 * originally added, keep them optional for old user space
2121 * programs to work with drivers that do not need the additional
2122 * information.
2123 */
2124 if (info->attrs[NL80211_ATTR_SSID]) {
2125 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2126 params.ssid_len =
2127 nla_len(info->attrs[NL80211_ATTR_SSID]);
2128 if (params.ssid_len == 0 ||
2129 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2130 return -EINVAL;
2131 }
2132
2133 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2134 params.hidden_ssid = nla_get_u32(
2135 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2136 if (params.hidden_ssid !=
2137 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2138 params.hidden_ssid !=
2139 NL80211_HIDDEN_SSID_ZERO_LEN &&
2140 params.hidden_ssid !=
2141 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2142 return -EINVAL;
2143 }
2144
5fb628e9
JM		 2145 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2146
2147 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2148 params.auth_type = nla_get_u32(
2149 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2150 if (!nl80211_valid_auth_type(params.auth_type))
2151 return -EINVAL;
2152 } else
2153 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2154
2155 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2156 NL80211_MAX_NR_CIPHER_SUITES);
2157 if (err)
2158 return err;
2159
79c97e97 2160 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2161 break;
2162 case NL80211_CMD_SET_BEACON:
79c97e97 2163 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2164 break;
2165 default:
2166 WARN_ON(1);
4c476991 2167 return -EOPNOTSUPP;
ed1b6cc7
JB		 2168 }
2169
4c476991
JB		 2170 if (!call)
2171 return -EOPNOTSUPP;
ed1b6cc7 2172
ed1b6cc7
JB		 2173 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2174 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2175 params.head_len =
2176 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2177 haveinfo = 1;
2178 }
2179
2180 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2181 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2182 params.tail_len =
2183 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2184 haveinfo = 1;
2185 }
2186
4c476991
JB		 2187 if (!haveinfo)
2188 return -EINVAL;
3b85875a 2189
9946ecfb
JM		 2190 if (info->attrs[NL80211_ATTR_IE]) {
2191 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2192 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2193 }
2194
2195 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2196 params.proberesp_ies =
2197 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2198 params.proberesp_ies_len =
2199 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2200 }
2201
2202 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2203 params.assocresp_ies =
2204 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2205 params.assocresp_ies_len =
2206 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2207 }
2208
00f740e1
AN		 2209 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2210 params.probe_resp =
2211 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2212 params.probe_resp_len =
2213 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2214 }
2215
56d1893d
JB		 2216 err = call(&rdev->wiphy, dev, &params);
2217 if (!err && params.interval)
2218 wdev->beacon_interval = params.interval;
2219 return err;
ed1b6cc7
JB		 2220}
2221
2222static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2223{
4c476991
JB		 2224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2225 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2226 struct wireless_dev *wdev = dev->ieee80211_ptr;
2227 int err;
ed1b6cc7 2228
4c476991
JB		 2229 if (!rdev->ops->del_beacon)
2230 return -EOPNOTSUPP;
ed1b6cc7 2231
074ac8df 2232 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2233 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2234 return -EOPNOTSUPP;
3b85875a 2235
56d1893d
JB		 2236 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2237 if (!err)
2238 wdev->beacon_interval = 0;
2239 return err;
ed1b6cc7
JB		 2240}
2241
5727ef1b
JB		 2242static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2243 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2244 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2245 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2246 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2247 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
d83023da 2248 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
5727ef1b
JB		 2249};
2250
eccb8e8f 2251static int parse_station_flags(struct genl_info *info,
bdd3ae3d 2252 enum nl80211_iftype iftype,
eccb8e8f 2253 struct station_parameters *params)
5727ef1b
JB		 2254{
2255 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2256 struct nlattr *nla;
5727ef1b
JB		 2257 int flag;
2258
eccb8e8f
JB		 2259 /*
2260 * Try parsing the new attribute first so userspace
2261 * can specify both for older kernels.
2262 */
2263 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2264 if (nla) {
2265 struct nl80211_sta_flag_update *sta_flags;
2266
2267 sta_flags = nla_data(nla);
2268 params->sta_flags_mask = sta_flags->mask;
2269 params->sta_flags_set = sta_flags->set;
2270 if ((params->sta_flags_mask |
2271 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2272 return -EINVAL;
2273 return 0;
2274 }
2275
2276 /* if present, parse the old attribute */
5727ef1b 2277
eccb8e8f 2278 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2279 if (!nla)
2280 return 0;
2281
2282 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2283 nla, sta_flags_policy))
2284 return -EINVAL;
2285
bdd3ae3d
JB		 2286 /*
2287 * Only allow certain flags for interface types so that
2288 * other attributes are silently ignored. Remember that
2289 * this is backward compatibility code with old userspace
2290 * and shouldn't be hit in other cases anyway.
2291 */
2292 switch (iftype) {
2293 case NL80211_IFTYPE_AP:
2294 case NL80211_IFTYPE_AP_VLAN:
2295 case NL80211_IFTYPE_P2P_GO:
2296 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2297 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2298 BIT(NL80211_STA_FLAG_WME) |
2299 BIT(NL80211_STA_FLAG_MFP);
2300 break;
2301 case NL80211_IFTYPE_P2P_CLIENT:
2302 case NL80211_IFTYPE_STATION:
2303 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2304 BIT(NL80211_STA_FLAG_TDLS_PEER);
2305 break;
2306 case NL80211_IFTYPE_MESH_POINT:
2307 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2308 BIT(NL80211_STA_FLAG_MFP) |
2309 BIT(NL80211_STA_FLAG_AUTHORIZED);
2310 default:
2311 return -EINVAL;
2312 }
5727ef1b
JB		 2313
2314 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2315 if (flags[flag])
eccb8e8f 2316 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2317
2318 return 0;
2319}
2320
c8dcfd8a
FF		 2321static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2322 int attr)
2323{
2324 struct nlattr *rate;
2325 u16 bitrate;
2326
2327 rate = nla_nest_start(msg, attr);
2328 if (!rate)
2329 goto nla_put_failure;
2330
2331 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2332 bitrate = cfg80211_calculate_bitrate(info);
2333 if (bitrate > 0)
2334 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2335
2336 if (info->flags & RATE_INFO_FLAGS_MCS)
2337 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2338 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2339 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2340 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2341 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2342
2343 nla_nest_end(msg, rate);
2344 return true;
2345
2346nla_put_failure:
2347 return false;
2348}
2349
fd5b74dc
JB		 2350static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2351 int flags, struct net_device *dev,
98b62183 2352 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2353{
2354 void *hdr;
f4263c98 2355 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2356
2357 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2358 if (!hdr)
2359 return -1;
2360
2361 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2362 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2363
f5ea9120
JB		 2364 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2365
2ec600d6
LCC		 2366 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2367 if (!sinfoattr)
fd5b74dc 2368 goto nla_put_failure;
ebe27c91
MSS		 2369 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2370 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2371 sinfo->connected_time);
2ec600d6
LCC		 2372 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2373 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2374 sinfo->inactive_time);
2375 if (sinfo->filled & STATION_INFO_RX_BYTES)
2376 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2377 sinfo->rx_bytes);
2378 if (sinfo->filled & STATION_INFO_TX_BYTES)
2379 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2380 sinfo->tx_bytes);
2381 if (sinfo->filled & STATION_INFO_LLID)
2382 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2383 sinfo->llid);
2384 if (sinfo->filled & STATION_INFO_PLID)
2385 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2386 sinfo->plid);
2387 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2388 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2389 sinfo->plink_state);
420e7fab
HR		 2390 if (sinfo->filled & STATION_INFO_SIGNAL)
2391 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2392 sinfo->signal);
541a45a1
BR		 2393 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2394 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2395 sinfo->signal_avg);
420e7fab 2396 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2397 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2398 NL80211_STA_INFO_TX_BITRATE))
2399 goto nla_put_failure;
2400 }
2401 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2402 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2403 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2404 goto nla_put_failure;
420e7fab 2405 }
98c8a60a
JM		 2406 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2407 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2408 sinfo->rx_packets);
2409 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2410 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2411 sinfo->tx_packets);
b206b4ef
BR		 2412 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2413 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2414 sinfo->tx_retries);
2415 if (sinfo->filled & STATION_INFO_TX_FAILED)
2416 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2417 sinfo->tx_failed);
a85e1d55
PS		 2418 if (sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT)
2419 NLA_PUT_U32(msg, NL80211_STA_INFO_BEACON_LOSS,
2420 sinfo->beacon_loss_count);
f4263c98
PS		 2421 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2422 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2423 if (!bss_param)
2424 goto nla_put_failure;
2425
2426 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2427 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2428 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2429 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2430 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2431 NLA_PUT_FLAG(msg,
2432 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2433 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2434 sinfo->bss_param.dtim_period);
2435 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2436 sinfo->bss_param.beacon_interval);
2437
2438 nla_nest_end(msg, bss_param);
2439 }
bb6e753e
HS		 2440 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2441 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2442 sizeof(struct nl80211_sta_flag_update),
2443 &sinfo->sta_flags);
2ec600d6 2444 nla_nest_end(msg, sinfoattr);
fd5b74dc 2445
040bdf71 2446 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2447 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2448 sinfo->assoc_req_ies);
2449
fd5b74dc
JB		 2450 return genlmsg_end(msg, hdr);
2451
2452 nla_put_failure:
bc3ed28c
TG		 2453 genlmsg_cancel(msg, hdr);
2454 return -EMSGSIZE;
fd5b74dc
JB		 2455}
2456
2ec600d6 2457static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2458 struct netlink_callback *cb)
2ec600d6 2459{
2ec600d6
LCC		 2460 struct station_info sinfo;
2461 struct cfg80211_registered_device *dev;
bba95fef 2462 struct net_device *netdev;
2ec600d6 2463 u8 mac_addr[ETH_ALEN];
bba95fef 2464 int sta_idx = cb->args[1];
2ec600d6 2465 int err;
2ec600d6 2466
67748893
JB		 2467 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2468 if (err)
2469 return err;
bba95fef
JB		 2470
2471 if (!dev->ops->dump_station) {
eec60b03 2472 err = -EOPNOTSUPP;
bba95fef
JB		 2473 goto out_err;
2474 }
2475
bba95fef 2476 while (1) {
f612cedf 2477 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2478 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2479 mac_addr, &sinfo);
2480 if (err == -ENOENT)
2481 break;
2482 if (err)
3b85875a 2483 goto out_err;
bba95fef
JB		 2484
2485 if (nl80211_send_station(skb,
2486 NETLINK_CB(cb->skb).pid,
2487 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2488 netdev, mac_addr,
2489 &sinfo) < 0)
2490 goto out;
2491
2492 sta_idx++;
2493 }
2494
2495
2496 out:
2497 cb->args[1] = sta_idx;
2498 err = skb->len;
bba95fef 2499 out_err:
67748893 2500 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2501
2502 return err;
2ec600d6 2503}
fd5b74dc 2504
5727ef1b
JB		 2505static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2506{
4c476991
JB		 2507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2508 struct net_device *dev = info->user_ptr[1];
2ec600d6 2509 struct station_info sinfo;
fd5b74dc
JB		 2510 struct sk_buff *msg;
2511 u8 *mac_addr = NULL;
4c476991 2512 int err;
fd5b74dc 2513
2ec600d6 2514 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2515
2516 if (!info->attrs[NL80211_ATTR_MAC])
2517 return -EINVAL;
2518
2519 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2520
4c476991
JB		 2521 if (!rdev->ops->get_station)
2522 return -EOPNOTSUPP;
3b85875a 2523
4c476991 2524 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2525 if (err)
4c476991 2526 return err;
2ec600d6 2527
fd2120ca 2528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2529 if (!msg)
4c476991 2530 return -ENOMEM;
fd5b74dc
JB		 2531
2532 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2533 dev, mac_addr, &sinfo) < 0) {
2534 nlmsg_free(msg);
2535 return -ENOBUFS;
2536 }
3b85875a 2537
4c476991 2538 return genlmsg_reply(msg, info);
5727ef1b
JB		 2539}
2540
2541/*
c258d2de 2542 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2543 */
80b99899
JB		 2544static struct net_device *get_vlan(struct genl_info *info,
2545 struct cfg80211_registered_device *rdev)
5727ef1b 2546{
463d0183 2547 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2548 struct net_device *v;
2549 int ret;
2550
2551 if (!vlanattr)
2552 return NULL;
2553
2554 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2555 if (!v)
2556 return ERR_PTR(-ENODEV);
2557
2558 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2559 ret = -EINVAL;
2560 goto error;
5727ef1b 2561 }
80b99899
JB		 2562
2563 if (!netif_running(v)) {
2564 ret = -ENETDOWN;
2565 goto error;
2566 }
2567
2568 return v;
2569 error:
2570 dev_put(v);
2571 return ERR_PTR(ret);
5727ef1b
JB		 2572}
2573
2574static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2575{
4c476991 2576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2577 int err;
4c476991 2578 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2579 struct station_parameters params;
2580 u8 *mac_addr = NULL;
2581
2582 memset(&params, 0, sizeof(params));
2583
2584 params.listen_interval = -1;
57cf8043 2585 params.plink_state = -1;
5727ef1b
JB		 2586
2587 if (info->attrs[NL80211_ATTR_STA_AID])
2588 return -EINVAL;
2589
2590 if (!info->attrs[NL80211_ATTR_MAC])
2591 return -EINVAL;
2592
2593 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2594
2595 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2596 params.supported_rates =
2597 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2598 params.supported_rates_len =
2599 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2600 }
2601
2602 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2603 params.listen_interval =
2604 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2605
36aedc90
JM		 2606 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2607 params.ht_capa =
2608 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2609
bdd90d5e
JB		 2610 if (!rdev->ops->change_station)
2611 return -EOPNOTSUPP;
2612
bdd3ae3d 2613 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2614 return -EINVAL;
2615
2ec600d6
LCC		 2616 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2617 params.plink_action =
2618 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2619
9c3990aa
JC		 2620 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2621 params.plink_state =
2622 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2623
a97f4424
JB		 2624 switch (dev->ieee80211_ptr->iftype) {
2625 case NL80211_IFTYPE_AP:
2626 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2627 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2628 /* disallow mesh-specific things */
2629 if (params.plink_action)
bdd90d5e
JB		 2630 return -EINVAL;
2631
2632 /* TDLS can't be set, ... */
2633 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2634 return -EINVAL;
2635 /*
2636 * ... but don't bother the driver with it. This works around
2637 * a hostapd/wpa_supplicant issue -- it always includes the
2638 * TLDS_PEER flag in the mask even for AP mode.
2639 */
2640 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2641
2642 /* accept only the listed bits */
2643 if (params.sta_flags_mask &
2644 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2645 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2646 BIT(NL80211_STA_FLAG_WME) |
2647 BIT(NL80211_STA_FLAG_MFP)))
2648 return -EINVAL;
2649
2650 /* must be last in here for error handling */
2651 params.vlan = get_vlan(info, rdev);
2652 if (IS_ERR(params.vlan))
2653 return PTR_ERR(params.vlan);
a97f4424 2654 break;
074ac8df 2655 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2656 case NL80211_IFTYPE_STATION:
07ba55d7 2657 /* disallow things sta doesn't support */
a97f4424 2658 if (params.plink_action)
bdd90d5e 2659 return -EINVAL;
a97f4424 2660 if (params.ht_capa)
bdd90d5e 2661 return -EINVAL;
a97f4424 2662 if (params.listen_interval >= 0)
bdd90d5e
JB		 2663 return -EINVAL;
2664 /*
2665 * Don't allow userspace to change the TDLS_PEER flag,
2666 * but silently ignore attempts to change it since we
2667 * don't have state here to verify that it doesn't try
2668 * to change the flag.
2669 */
2670 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
2671
2672 /* reject any changes other than AUTHORIZED */
2673 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2674 return -EINVAL;
a97f4424
JB		 2675 break;
2676 case NL80211_IFTYPE_MESH_POINT:
2677 /* disallow things mesh doesn't support */
2678 if (params.vlan)
bdd90d5e 2679 return -EINVAL;
a97f4424 2680 if (params.ht_capa)
bdd90d5e 2681 return -EINVAL;
a97f4424 2682 if (params.listen_interval >= 0)
bdd90d5e
JB		 2683 return -EINVAL;
2684 /*
2685 * No special handling for TDLS here -- the userspace
2686 * mesh code doesn't have this bug.
2687 */
b39c48fa
JC		 2688 if (params.sta_flags_mask &
2689 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2690 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2691 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2692 return -EINVAL;
a97f4424
JB		 2693 break;
2694 default:
bdd90d5e 2695 return -EOPNOTSUPP;
034d655e
JB		 2696 }
2697
bdd90d5e 2698 /* be aware of params.vlan when changing code here */
5727ef1b 2699
79c97e97 2700 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2701
5727ef1b
JB		 2702 if (params.vlan)
2703 dev_put(params.vlan);
3b85875a 2704
5727ef1b
JB		 2705 return err;
2706}
2707
c75786c9
EP		 2708static struct nla_policy
2709nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2710 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2711 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2712};
2713
5727ef1b
JB		 2714static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2715{
4c476991 2716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2717 int err;
4c476991 2718 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2719 struct station_parameters params;
2720 u8 *mac_addr = NULL;
2721
2722 memset(&params, 0, sizeof(params));
2723
2724 if (!info->attrs[NL80211_ATTR_MAC])
2725 return -EINVAL;
2726
5727ef1b
JB		 2727 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2728 return -EINVAL;
2729
2730 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2731 return -EINVAL;
2732
0e956c13
TLSC		 2733 if (!info->attrs[NL80211_ATTR_STA_AID])
2734 return -EINVAL;
2735
5727ef1b
JB		 2736 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2737 params.supported_rates =
2738 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2739 params.supported_rates_len =
2740 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2741 params.listen_interval =
2742 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2743
0e956c13
TLSC		 2744 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2745 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2746 return -EINVAL;
51b50fbe 2747
36aedc90
JM		 2748 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2749 params.ht_capa =
2750 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2751
96b78dff
JC		 2752 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2753 params.plink_action =
2754 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2755
bdd90d5e
JB		 2756 if (!rdev->ops->add_station)
2757 return -EOPNOTSUPP;
2758
bdd3ae3d 2759 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2760 return -EINVAL;
2761
bdd90d5e
JB		 2762 switch (dev->ieee80211_ptr->iftype) {
2763 case NL80211_IFTYPE_AP:
2764 case NL80211_IFTYPE_AP_VLAN:
2765 case NL80211_IFTYPE_P2P_GO:
2766 /* parse WME attributes if sta is WME capable */
2767 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2768 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2769 info->attrs[NL80211_ATTR_STA_WME]) {
2770 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2771 struct nlattr *nla;
2772
2773 nla = info->attrs[NL80211_ATTR_STA_WME];
2774 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2775 nl80211_sta_wme_policy);
2776 if (err)
2777 return err;
2778
2779 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2780 params.uapsd_queues =
2781 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2782 if (params.uapsd_queues &
2783 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2784 return -EINVAL;
c75786c9 2785
bdd90d5e
JB		 2786 if (tb[NL80211_STA_WME_MAX_SP])
2787 params.max_sp =
2788 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 2789
bdd90d5e
JB		 2790 if (params.max_sp &
2791 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2792 return -EINVAL;
4319e193 2793
bdd90d5e
JB		 2794 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2795 }
2796 /* TDLS peers cannot be added */
2797 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 2798 return -EINVAL;
bdd90d5e
JB		 2799 /* but don't bother the driver with it */
2800 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 2801
bdd90d5e
JB		 2802 /* must be last in here for error handling */
2803 params.vlan = get_vlan(info, rdev);
2804 if (IS_ERR(params.vlan))
2805 return PTR_ERR(params.vlan);
2806 break;
2807 case NL80211_IFTYPE_MESH_POINT:
2808 /* TDLS peers cannot be added */
2809 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2810 return -EINVAL;
2811 break;
2812 case NL80211_IFTYPE_STATION:
2813 /* Only TDLS peers can be added */
2814 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2815 return -EINVAL;
2816 /* Can only add if TDLS ... */
2817 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2818 return -EOPNOTSUPP;
2819 /* ... with external setup is supported */
2820 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2821 return -EOPNOTSUPP;
2822 break;
2823 default:
2824 return -EOPNOTSUPP;
c75786c9
EP		 2825 }
2826
bdd90d5e 2827 /* be aware of params.vlan when changing code here */
5727ef1b 2828
79c97e97 2829 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2830
5727ef1b
JB		 2831 if (params.vlan)
2832 dev_put(params.vlan);
5727ef1b
JB		 2833 return err;
2834}
2835
2836static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2837{
4c476991
JB		 2838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2839 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2840 u8 *mac_addr = NULL;
2841
2842 if (info->attrs[NL80211_ATTR_MAC])
2843 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2844
e80cf853 2845 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2846 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2848 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2849 return -EINVAL;
5727ef1b 2850
4c476991
JB		 2851 if (!rdev->ops->del_station)
2852 return -EOPNOTSUPP;
3b85875a 2853
4c476991 2854 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2855}
2856
2ec600d6
LCC		 2857static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2858 int flags, struct net_device *dev,
2859 u8 *dst, u8 *next_hop,
2860 struct mpath_info *pinfo)
2861{
2862 void *hdr;
2863 struct nlattr *pinfoattr;
2864
2865 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2866 if (!hdr)
2867 return -1;
2868
2869 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2870 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2871 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2872
f5ea9120
JB		 2873 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2874
2ec600d6
LCC		 2875 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2876 if (!pinfoattr)
2877 goto nla_put_failure;
2878 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2879 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2880 pinfo->frame_qlen);
d19b3bf6
RP		 2881 if (pinfo->filled & MPATH_INFO_SN)
2882 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2883 pinfo->sn);
2ec600d6
LCC		 2884 if (pinfo->filled & MPATH_INFO_METRIC)
2885 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2886 pinfo->metric);
2887 if (pinfo->filled & MPATH_INFO_EXPTIME)
2888 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2889 pinfo->exptime);
2890 if (pinfo->filled & MPATH_INFO_FLAGS)
2891 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2892 pinfo->flags);
2893 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2894 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2895 pinfo->discovery_timeout);
2896 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2897 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2898 pinfo->discovery_retries);
2899
2900 nla_nest_end(msg, pinfoattr);
2901
2902 return genlmsg_end(msg, hdr);
2903
2904 nla_put_failure:
bc3ed28c
TG		 2905 genlmsg_cancel(msg, hdr);
2906 return -EMSGSIZE;
2ec600d6
LCC		 2907}
2908
2909static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2910 struct netlink_callback *cb)
2ec600d6 2911{
2ec600d6
LCC		 2912 struct mpath_info pinfo;
2913 struct cfg80211_registered_device *dev;
bba95fef 2914 struct net_device *netdev;
2ec600d6
LCC		 2915 u8 dst[ETH_ALEN];
2916 u8 next_hop[ETH_ALEN];
bba95fef 2917 int path_idx = cb->args[1];
2ec600d6 2918 int err;
2ec600d6 2919
67748893
JB		 2920 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2921 if (err)
2922 return err;
bba95fef
JB		 2923
2924 if (!dev->ops->dump_mpath) {
eec60b03 2925 err = -EOPNOTSUPP;
bba95fef
JB		 2926 goto out_err;
2927 }
2928
eec60b03
JM		 2929 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2930 err = -EOPNOTSUPP;
0448b5fc 2931 goto out_err;
eec60b03
JM		 2932 }
2933
bba95fef
JB		 2934 while (1) {
2935 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2936 dst, next_hop, &pinfo);
2937 if (err == -ENOENT)
2ec600d6 2938 break;
bba95fef 2939 if (err)
3b85875a 2940 goto out_err;
2ec600d6 2941
bba95fef
JB		 2942 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2943 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2944 netdev, dst, next_hop,
2945 &pinfo) < 0)
2946 goto out;
2ec600d6 2947
bba95fef 2948 path_idx++;
2ec600d6 2949 }
2ec600d6 2950
2ec600d6 2951
bba95fef
JB		 2952 out:
2953 cb->args[1] = path_idx;
2954 err = skb->len;
bba95fef 2955 out_err:
67748893 2956 nl80211_finish_netdev_dump(dev);
bba95fef 2957 return err;
2ec600d6
LCC		 2958}
2959
2960static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2961{
4c476991 2962 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2963 int err;
4c476991 2964 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2965 struct mpath_info pinfo;
2966 struct sk_buff *msg;
2967 u8 *dst = NULL;
2968 u8 next_hop[ETH_ALEN];
2969
2970 memset(&pinfo, 0, sizeof(pinfo));
2971
2972 if (!info->attrs[NL80211_ATTR_MAC])
2973 return -EINVAL;
2974
2975 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2976
4c476991
JB		 2977 if (!rdev->ops->get_mpath)
2978 return -EOPNOTSUPP;
2ec600d6 2979
4c476991
JB		 2980 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2981 return -EOPNOTSUPP;
eec60b03 2982
79c97e97 2983 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2984 if (err)
4c476991 2985 return err;
2ec600d6 2986
fd2120ca 2987 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2988 if (!msg)
4c476991 2989 return -ENOMEM;
2ec600d6
LCC		 2990
2991 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2992 dev, dst, next_hop, &pinfo) < 0) {
2993 nlmsg_free(msg);
2994 return -ENOBUFS;
2995 }
3b85875a 2996
4c476991 2997 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2998}
2999
3000static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3001{
4c476991
JB		 3002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3003 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3004 u8 *dst = NULL;
3005 u8 *next_hop = NULL;
3006
3007 if (!info->attrs[NL80211_ATTR_MAC])
3008 return -EINVAL;
3009
3010 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3011 return -EINVAL;
3012
3013 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3014 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3015
4c476991
JB		 3016 if (!rdev->ops->change_mpath)
3017 return -EOPNOTSUPP;
35a8efe1 3018
4c476991
JB		 3019 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3020 return -EOPNOTSUPP;
2ec600d6 3021
4c476991 3022 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3023}
4c476991 3024
2ec600d6
LCC		 3025static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3026{
4c476991
JB		 3027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3028 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3029 u8 *dst = NULL;
3030 u8 *next_hop = NULL;
3031
3032 if (!info->attrs[NL80211_ATTR_MAC])
3033 return -EINVAL;
3034
3035 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3036 return -EINVAL;
3037
3038 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3039 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3040
4c476991
JB		 3041 if (!rdev->ops->add_mpath)
3042 return -EOPNOTSUPP;
35a8efe1 3043
4c476991
JB		 3044 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3045 return -EOPNOTSUPP;
2ec600d6 3046
4c476991 3047 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3048}
3049
3050static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3051{
4c476991
JB		 3052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3053 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3054 u8 *dst = NULL;
3055
3056 if (info->attrs[NL80211_ATTR_MAC])
3057 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3058
4c476991
JB		 3059 if (!rdev->ops->del_mpath)
3060 return -EOPNOTSUPP;
3b85875a 3061
4c476991 3062 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3063}
3064
9f1ba906
JM		 3065static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3066{
4c476991
JB		 3067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3068 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3069 struct bss_parameters params;
3070
3071 memset(&params, 0, sizeof(params));
3072 /* default to not changing parameters */
3073 params.use_cts_prot = -1;
3074 params.use_short_preamble = -1;
3075 params.use_short_slot_time = -1;
fd8aaaf3 3076 params.ap_isolate = -1;
50b12f59 3077 params.ht_opmode = -1;
9f1ba906
JM		 3078
3079 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3080 params.use_cts_prot =
3081 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3082 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3083 params.use_short_preamble =
3084 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3085 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3086 params.use_short_slot_time =
3087 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3088 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3089 params.basic_rates =
3090 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3091 params.basic_rates_len =
3092 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3093 }
fd8aaaf3
FF		 3094 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3095 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3096 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3097 params.ht_opmode =
3098 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3099
4c476991
JB		 3100 if (!rdev->ops->change_bss)
3101 return -EOPNOTSUPP;
9f1ba906 3102
074ac8df 3103 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3104 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3105 return -EOPNOTSUPP;
3b85875a 3106
4c476991 3107 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3108}
3109
b54452b0 3110static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3111 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3112 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3113 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3114 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3115 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3116 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3117};
3118
3119static int parse_reg_rule(struct nlattr *tb[],
3120 struct ieee80211_reg_rule *reg_rule)
3121{
3122 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3123 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3124
3125 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3126 return -EINVAL;
3127 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3128 return -EINVAL;
3129 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3130 return -EINVAL;
3131 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3132 return -EINVAL;
3133 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3134 return -EINVAL;
3135
3136 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3137
3138 freq_range->start_freq_khz =
3139 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3140 freq_range->end_freq_khz =
3141 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3142 freq_range->max_bandwidth_khz =
3143 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3144
3145 power_rule->max_eirp =
3146 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3147
3148 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3149 power_rule->max_antenna_gain =
3150 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3151
3152 return 0;
3153}
3154
3155static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3156{
3157 int r;
3158 char *data = NULL;
3159
80778f18
LR		 3160 /*
3161 * You should only get this when cfg80211 hasn't yet initialized
3162 * completely when built-in to the kernel right between the time
3163 * window between nl80211_init() and regulatory_init(), if that is
3164 * even possible.
3165 */
3166 mutex_lock(&cfg80211_mutex);
3167 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3168 mutex_unlock(&cfg80211_mutex);
3169 return -EINPROGRESS;
80778f18 3170 }
fe33eb39 3171 mutex_unlock(&cfg80211_mutex);
80778f18 3172
fe33eb39
LR		 3173 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3174 return -EINVAL;
b2e1b302
LR		 3175
3176 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3177
fe33eb39
LR		 3178 r = regulatory_hint_user(data);
3179
b2e1b302
LR		 3180 return r;
3181}
3182
24bdd9f4 3183static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3184 struct genl_info *info)
93da9cc1 3185{
4c476991 3186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3187 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3188 struct wireless_dev *wdev = dev->ieee80211_ptr;
3189 struct mesh_config cur_params;
3190 int err = 0;
93da9cc1 3191 void *hdr;
3192 struct nlattr *pinfoattr;
3193 struct sk_buff *msg;
3194
29cbe68c
JB		 3195 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3196 return -EOPNOTSUPP;
3197
24bdd9f4 3198 if (!rdev->ops->get_mesh_config)
4c476991 3199 return -EOPNOTSUPP;
f3f92586 3200
29cbe68c
JB		 3201 wdev_lock(wdev);
3202 /* If not connected, get default parameters */
3203 if (!wdev->mesh_id_len)
3204 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3205 else
24bdd9f4 3206 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3207 &cur_params);
3208 wdev_unlock(wdev);
3209
93da9cc1 3210 if (err)
4c476991 3211 return err;
93da9cc1 3212
3213 /* Draw up a netlink message to send back */
fd2120ca 3214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3215 if (!msg)
3216 return -ENOMEM;
93da9cc1 3217 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3218 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3219 if (!hdr)
efe1cf0c 3220 goto out;
24bdd9f4 3221 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3222 if (!pinfoattr)
3223 goto nla_put_failure;
3224 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3225 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3226 cur_params.dot11MeshRetryTimeout);
3227 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3228 cur_params.dot11MeshConfirmTimeout);
3229 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3230 cur_params.dot11MeshHoldingTimeout);
3231 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3232 cur_params.dot11MeshMaxPeerLinks);
3233 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3234 cur_params.dot11MeshMaxRetries);
3235 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3236 cur_params.dot11MeshTTL);
45904f21
JC		 3237 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3238 cur_params.element_ttl);
93da9cc1 3239 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3240 cur_params.auto_open_plinks);
3241 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3242 cur_params.dot11MeshHWMPmaxPREQretries);
3243 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3244 cur_params.path_refresh_time);
3245 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3246 cur_params.min_discovery_timeout);
3247 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3248 cur_params.dot11MeshHWMPactivePathTimeout);
3249 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3250 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3251 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3252 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3253 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3254 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3255 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3256 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3257 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3258 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3259 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3260 cur_params.dot11MeshGateAnnouncementProtocol);
94f90656
CYY		 3261 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3262 cur_params.dot11MeshForwarding);
93da9cc1 3263 nla_nest_end(msg, pinfoattr);
3264 genlmsg_end(msg, hdr);
4c476991 3265 return genlmsg_reply(msg, info);
93da9cc1 3266
3b85875a 3267 nla_put_failure:
93da9cc1 3268 genlmsg_cancel(msg, hdr);
efe1cf0c 3269 out:
d080e275 3270 nlmsg_free(msg);
4c476991 3271 return -ENOBUFS;
93da9cc1 3272}
3273
b54452b0 3274static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3275 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3276 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3277 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3278 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3279 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3280 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3281 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3282 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3283
3284 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3285 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3286 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3287 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3288 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3289 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3290 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3291 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3292 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3293 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3294 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
93da9cc1 3295};
3296
c80d545d
JC		 3297static const struct nla_policy
3298 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3299 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3300 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3301 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3302 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3303 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3304 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3305};
3306
24bdd9f4 3307static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3308 struct mesh_config *cfg,
3309 u32 *mask_out)
93da9cc1 3310{
93da9cc1 3311 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3312 u32 mask = 0;
93da9cc1 3313
bd90fdcc
JB		 3314#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3315do {\
3316 if (table[attr_num]) {\
3317 cfg->param = nla_fn(table[attr_num]); \
3318 mask |= (1 << (attr_num - 1)); \
3319 } \
3320} while (0);\
3321
3322
24bdd9f4 3323 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3324 return -EINVAL;
3325 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3326 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3327 nl80211_meshconf_params_policy))
93da9cc1 3328 return -EINVAL;
3329
93da9cc1 3330 /* This makes sure that there aren't more than 32 mesh config
3331 * parameters (otherwise our bitfield scheme would not work.) */
3332 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3333
3334 /* Fill in the params struct */
93da9cc1 3335 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3336 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3337 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3338 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3339 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3340 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3341 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3342 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3343 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3344 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3345 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3346 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3347 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3348 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3349 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3350 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3352 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3353 nla_get_u8);
3354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3355 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3356 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3357 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3358 nla_get_u16);
3359 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3360 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3361 nla_get_u32);
3362 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3363 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3364 nla_get_u16);
dca7e943
TP		 3365 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3366 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3367 nla_get_u16);
93da9cc1 3368 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3369 dot11MeshHWMPnetDiameterTraversalTime,
3370 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3371 nla_get_u16);
63c5723b
RP		 3372 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3373 dot11MeshHWMPRootMode, mask,
3374 NL80211_MESHCONF_HWMP_ROOTMODE,
3375 nla_get_u8);
0507e159
JC		 3376 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3377 dot11MeshHWMPRannInterval, mask,
3378 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3379 nla_get_u16);
16dd7267
JC		 3380 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3381 dot11MeshGateAnnouncementProtocol, mask,
3382 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3383 nla_get_u8);
94f90656
CYY		 3384 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3385 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
bd90fdcc
JB		 3386 if (mask_out)
3387 *mask_out = mask;
c80d545d 3388
bd90fdcc
JB		 3389 return 0;
3390
3391#undef FILL_IN_MESH_PARAM_IF_SET
3392}
3393
c80d545d
JC		 3394static int nl80211_parse_mesh_setup(struct genl_info *info,
3395 struct mesh_setup *setup)
3396{
3397 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3398
3399 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3400 return -EINVAL;
3401 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3402 info->attrs[NL80211_ATTR_MESH_SETUP],
3403 nl80211_mesh_setup_params_policy))
3404 return -EINVAL;
3405
3406 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3407 setup->path_sel_proto =
3408 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3409 IEEE80211_PATH_PROTOCOL_VENDOR :
3410 IEEE80211_PATH_PROTOCOL_HWMP;
3411
3412 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3413 setup->path_metric =
3414 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3415 IEEE80211_PATH_METRIC_VENDOR :
3416 IEEE80211_PATH_METRIC_AIRTIME;
3417
581a8b0f
JC		 3418
3419 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3420 struct nlattr *ieattr =
581a8b0f 3421 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3422 if (!is_valid_ie_attr(ieattr))
3423 return -EINVAL;
581a8b0f
JC		 3424 setup->ie = nla_data(ieattr);
3425 setup->ie_len = nla_len(ieattr);
c80d545d 3426 }
b130e5ce
JC		 3427 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3428 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3429
3430 return 0;
3431}
3432
24bdd9f4 3433static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3434 struct genl_info *info)
bd90fdcc
JB		 3435{
3436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3437 struct net_device *dev = info->user_ptr[1];
29cbe68c 3438 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3439 struct mesh_config cfg;
3440 u32 mask;
3441 int err;
3442
29cbe68c
JB		 3443 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3444 return -EOPNOTSUPP;
3445
24bdd9f4 3446 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3447 return -EOPNOTSUPP;
3448
24bdd9f4 3449 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3450 if (err)
3451 return err;
3452
29cbe68c
JB		 3453 wdev_lock(wdev);
3454 if (!wdev->mesh_id_len)
3455 err = -ENOLINK;
3456
3457 if (!err)
24bdd9f4 3458 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3459 mask, &cfg);
3460
3461 wdev_unlock(wdev);
3462
3463 return err;
93da9cc1 3464}
3465
f130347c
LR		 3466static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3467{
3468 struct sk_buff *msg;
3469 void *hdr = NULL;
3470 struct nlattr *nl_reg_rules;
3471 unsigned int i;
3472 int err = -EINVAL;
3473
a1794390 3474 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3475
3476 if (!cfg80211_regdomain)
3477 goto out;
3478
fd2120ca 3479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3480 if (!msg) {
3481 err = -ENOBUFS;
3482 goto out;
3483 }
3484
3485 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3486 NL80211_CMD_GET_REG);
3487 if (!hdr)
efe1cf0c 3488 goto put_failure;
f130347c
LR		 3489
3490 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3491 cfg80211_regdomain->alpha2);
8b60b078
LR		 3492 if (cfg80211_regdomain->dfs_region)
3493 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3494 cfg80211_regdomain->dfs_region);
f130347c
LR		 3495
3496 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3497 if (!nl_reg_rules)
3498 goto nla_put_failure;
3499
3500 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3501 struct nlattr *nl_reg_rule;
3502 const struct ieee80211_reg_rule *reg_rule;
3503 const struct ieee80211_freq_range *freq_range;
3504 const struct ieee80211_power_rule *power_rule;
3505
3506 reg_rule = &cfg80211_regdomain->reg_rules[i];
3507 freq_range = &reg_rule->freq_range;
3508 power_rule = &reg_rule->power_rule;
3509
3510 nl_reg_rule = nla_nest_start(msg, i);
3511 if (!nl_reg_rule)
3512 goto nla_put_failure;
3513
3514 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3515 reg_rule->flags);
3516 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3517 freq_range->start_freq_khz);
3518 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3519 freq_range->end_freq_khz);
3520 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3521 freq_range->max_bandwidth_khz);
3522 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3523 power_rule->max_antenna_gain);
3524 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3525 power_rule->max_eirp);
3526
3527 nla_nest_end(msg, nl_reg_rule);
3528 }
3529
3530 nla_nest_end(msg, nl_reg_rules);
3531
3532 genlmsg_end(msg, hdr);
134e6375 3533 err = genlmsg_reply(msg, info);
f130347c
LR		 3534 goto out;
3535
3536nla_put_failure:
3537 genlmsg_cancel(msg, hdr);
efe1cf0c 3538put_failure:
d080e275 3539 nlmsg_free(msg);
f130347c
LR		 3540 err = -EMSGSIZE;
3541out:
a1794390 3542 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3543 return err;
3544}
3545
b2e1b302
LR		 3546static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3547{
3548 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3549 struct nlattr *nl_reg_rule;
3550 char *alpha2 = NULL;
3551 int rem_reg_rules = 0, r = 0;
3552 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3553 u8 dfs_region = 0;
b2e1b302
LR		 3554 struct ieee80211_regdomain *rd = NULL;
3555
3556 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3557 return -EINVAL;
3558
3559 if (!info->attrs[NL80211_ATTR_REG_RULES])
3560 return -EINVAL;
3561
3562 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3563
8b60b078
LR		 3564 if (info->attrs[NL80211_ATTR_DFS_REGION])
3565 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3566
b2e1b302
LR		 3567 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3568 rem_reg_rules) {
3569 num_rules++;
3570 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3571 return -EINVAL;
b2e1b302
LR		 3572 }
3573
61405e97
LR		 3574 mutex_lock(&cfg80211_mutex);
3575
d0e18f83
LR		 3576 if (!reg_is_valid_request(alpha2)) {
3577 r = -EINVAL;
3578 goto bad_reg;
3579 }
b2e1b302
LR		 3580
3581 size_of_regd = sizeof(struct ieee80211_regdomain) +
3582 (num_rules * sizeof(struct ieee80211_reg_rule));
3583
3584 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3585 if (!rd) {
3586 r = -ENOMEM;
3587 goto bad_reg;
3588 }
b2e1b302
LR		 3589
3590 rd->n_reg_rules = num_rules;
3591 rd->alpha2[0] = alpha2[0];
3592 rd->alpha2[1] = alpha2[1];
3593
8b60b078
LR		 3594 /*
3595 * Disable DFS master mode if the DFS region was
3596 * not supported or known on this kernel.
3597 */
3598 if (reg_supported_dfs_region(dfs_region))
3599 rd->dfs_region = dfs_region;
3600
b2e1b302
LR		 3601 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3602 rem_reg_rules) {
3603 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3604 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3605 reg_rule_policy);
3606 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3607 if (r)
3608 goto bad_reg;
3609
3610 rule_idx++;
3611
d0e18f83
LR		 3612 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3613 r = -EINVAL;
b2e1b302 3614 goto bad_reg;
d0e18f83 3615 }
b2e1b302
LR		 3616 }
3617
3618 BUG_ON(rule_idx != num_rules);
3619
b2e1b302 3620 r = set_regdom(rd);
61405e97 3621
a1794390 3622 mutex_unlock(&cfg80211_mutex);
d0e18f83 3623
b2e1b302
LR		 3624 return r;
3625
d2372b31 3626 bad_reg:
61405e97 3627 mutex_unlock(&cfg80211_mutex);
b2e1b302 3628 kfree(rd);
d0e18f83 3629 return r;
b2e1b302
LR		 3630}
3631
83f5e2cf
JB		 3632static int validate_scan_freqs(struct nlattr *freqs)
3633{
3634 struct nlattr *attr1, *attr2;
3635 int n_channels = 0, tmp1, tmp2;
3636
3637 nla_for_each_nested(attr1, freqs, tmp1) {
3638 n_channels++;
3639 /*
3640 * Some hardware has a limited channel list for
3641 * scanning, and it is pretty much nonsensical
3642 * to scan for a channel twice, so disallow that
3643 * and don't require drivers to check that the
3644 * channel list they get isn't longer than what
3645 * they can scan, as long as they can scan all
3646 * the channels they registered at once.
3647 */
3648 nla_for_each_nested(attr2, freqs, tmp2)
3649 if (attr1 != attr2 &&
3650 nla_get_u32(attr1) == nla_get_u32(attr2))
3651 return 0;
3652 }
3653
3654 return n_channels;
3655}
3656
2a519311
JB		 3657static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3658{
4c476991
JB		 3659 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3660 struct net_device *dev = info->user_ptr[1];
2a519311 3661 struct cfg80211_scan_request *request;
2a519311
JB		 3662 struct nlattr *attr;
3663 struct wiphy *wiphy;
83f5e2cf 3664 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3665 size_t ie_len;
2a519311 3666
f4a11bb0
JB		 3667 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3668 return -EINVAL;
3669
79c97e97 3670 wiphy = &rdev->wiphy;
2a519311 3671
4c476991
JB		 3672 if (!rdev->ops->scan)
3673 return -EOPNOTSUPP;
2a519311 3674
4c476991
JB		 3675 if (rdev->scan_req)
3676 return -EBUSY;
2a519311
JB		 3677
3678 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3679 n_channels = validate_scan_freqs(
3680 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3681 if (!n_channels)
3682 return -EINVAL;
2a519311 3683 } else {
34850ab2 3684 enum ieee80211_band band;
83f5e2cf
JB		 3685 n_channels = 0;
3686
2a519311
JB		 3687 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3688 if (wiphy->bands[band])
3689 n_channels += wiphy->bands[band]->n_channels;
3690 }
3691
3692 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3693 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3694 n_ssids++;
3695
4c476991
JB		 3696 if (n_ssids > wiphy->max_scan_ssids)
3697 return -EINVAL;
2a519311 3698
70692ad2
JM		 3699 if (info->attrs[NL80211_ATTR_IE])
3700 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3701 else
3702 ie_len = 0;
3703
4c476991
JB		 3704 if (ie_len > wiphy->max_scan_ie_len)
3705 return -EINVAL;
18a83659 3706
2a519311 3707 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3708 + sizeof(*request->ssids) * n_ssids
3709 + sizeof(*request->channels) * n_channels
70692ad2 3710 + ie_len, GFP_KERNEL);
4c476991
JB		 3711 if (!request)
3712 return -ENOMEM;
2a519311 3713
2a519311 3714 if (n_ssids)
5ba63533 3715 request->ssids = (void *)&request->channels[n_channels];
2a519311 3716 request->n_ssids = n_ssids;
70692ad2
JM		 3717 if (ie_len) {
3718 if (request->ssids)
3719 request->ie = (void *)(request->ssids + n_ssids);
3720 else
3721 request->ie = (void *)(request->channels + n_channels);
3722 }
2a519311 3723
584991dc 3724 i = 0;
2a519311
JB		 3725 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3726 /* user specified, bail out if channel not found */
2a519311 3727 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3728 struct ieee80211_channel *chan;
3729
3730 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3731
3732 if (!chan) {
2a519311
JB		 3733 err = -EINVAL;
3734 goto out_free;
3735 }
584991dc
JB		 3736
3737 /* ignore disabled channels */
3738 if (chan->flags & IEEE80211_CHAN_DISABLED)
3739 continue;
3740
3741 request->channels[i] = chan;
2a519311
JB		 3742 i++;
3743 }
3744 } else {
34850ab2
JB		 3745 enum ieee80211_band band;
3746
2a519311 3747 /* all channels */
2a519311
JB		 3748 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3749 int j;
3750 if (!wiphy->bands[band])
3751 continue;
3752 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3753 struct ieee80211_channel *chan;
3754
3755 chan = &wiphy->bands[band]->channels[j];
3756
3757 if (chan->flags & IEEE80211_CHAN_DISABLED)
3758 continue;
3759
3760 request->channels[i] = chan;
2a519311
JB		 3761 i++;
3762 }
3763 }
3764 }
3765
584991dc
JB		 3766 if (!i) {
3767 err = -EINVAL;
3768 goto out_free;
3769 }
3770
3771 request->n_channels = i;
3772
2a519311
JB		 3773 i = 0;
3774 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3775 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3776 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3777 err = -EINVAL;
3778 goto out_free;
3779 }
57a27e1d 3780 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3781 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3782 i++;
3783 }
3784 }
3785
70692ad2
JM		 3786 if (info->attrs[NL80211_ATTR_IE]) {
3787 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3788 memcpy((void *)request->ie,
3789 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3790 request->ie_len);
3791 }
3792
34850ab2 3793 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3794 if (wiphy->bands[i])
3795 request->rates[i] =
3796 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3797
3798 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3799 nla_for_each_nested(attr,
3800 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3801 tmp) {
3802 enum ieee80211_band band = nla_type(attr);
3803
84404623 3804 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3805 err = -EINVAL;
3806 goto out_free;
3807 }
3808 err = ieee80211_get_ratemask(wiphy->bands[band],
3809 nla_data(attr),
3810 nla_len(attr),
3811 &request->rates[band]);
3812 if (err)
3813 goto out_free;
3814 }
3815 }
3816
e9f935e3
RM		 3817 request->no_cck =
3818 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3819
463d0183 3820 request->dev = dev;
79c97e97 3821 request->wiphy = &rdev->wiphy;
2a519311 3822
79c97e97
JB		 3823 rdev->scan_req = request;
3824 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3825
463d0183 3826 if (!err) {
79c97e97 3827 nl80211_send_scan_start(rdev, dev);
463d0183 3828 dev_hold(dev);
4c476991 3829 } else {
2a519311 3830 out_free:
79c97e97 3831 rdev->scan_req = NULL;
2a519311
JB		 3832 kfree(request);
3833 }
3b85875a 3834
2a519311
JB		 3835 return err;
3836}
3837
807f8a8c
LC		 3838static int nl80211_start_sched_scan(struct sk_buff *skb,
3839 struct genl_info *info)
3840{
3841 struct cfg80211_sched_scan_request *request;
3842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3843 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3844 struct nlattr *attr;
3845 struct wiphy *wiphy;
a1f1c21c 3846 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3847 u32 interval;
807f8a8c
LC		 3848 enum ieee80211_band band;
3849 size_t ie_len;
a1f1c21c 3850 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3851
3852 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3853 !rdev->ops->sched_scan_start)
3854 return -EOPNOTSUPP;
3855
3856 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3857 return -EINVAL;
3858
bbe6ad6d
LC		 3859 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3860 return -EINVAL;
3861
3862 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3863 if (interval == 0)
3864 return -EINVAL;
3865
807f8a8c
LC		 3866 wiphy = &rdev->wiphy;
3867
3868 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3869 n_channels = validate_scan_freqs(
3870 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3871 if (!n_channels)
3872 return -EINVAL;
3873 } else {
3874 n_channels = 0;
3875
3876 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3877 if (wiphy->bands[band])
3878 n_channels += wiphy->bands[band]->n_channels;
3879 }
3880
3881 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3882 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3883 tmp)
3884 n_ssids++;
3885
93b6aa69 3886 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3887 return -EINVAL;
3888
a1f1c21c
LC		 3889 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3890 nla_for_each_nested(attr,
3891 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3892 tmp)
3893 n_match_sets++;
3894
3895 if (n_match_sets > wiphy->max_match_sets)
3896 return -EINVAL;
3897
807f8a8c
LC		 3898 if (info->attrs[NL80211_ATTR_IE])
3899 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3900 else
3901 ie_len = 0;
3902
5a865bad 3903 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3904 return -EINVAL;
3905
c10841ca
LC		 3906 mutex_lock(&rdev->sched_scan_mtx);
3907
3908 if (rdev->sched_scan_req) {
3909 err = -EINPROGRESS;
3910 goto out;
3911 }
3912
807f8a8c 3913 request = kzalloc(sizeof(*request)
a2cd43c5 3914 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3915 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3916 + sizeof(*request->channels) * n_channels
807f8a8c 3917 + ie_len, GFP_KERNEL);
c10841ca
LC		 3918 if (!request) {
3919 err = -ENOMEM;
3920 goto out;
3921 }
807f8a8c
LC		 3922
3923 if (n_ssids)
3924 request->ssids = (void *)&request->channels[n_channels];
3925 request->n_ssids = n_ssids;
3926 if (ie_len) {
3927 if (request->ssids)
3928 request->ie = (void *)(request->ssids + n_ssids);
3929 else
3930 request->ie = (void *)(request->channels + n_channels);
3931 }
3932
a1f1c21c
LC		 3933 if (n_match_sets) {
3934 if (request->ie)
3935 request->match_sets = (void *)(request->ie + ie_len);
3936 else if (request->ssids)
3937 request->match_sets =
3938 (void *)(request->ssids + n_ssids);
3939 else
3940 request->match_sets =
3941 (void *)(request->channels + n_channels);
3942 }
3943 request->n_match_sets = n_match_sets;
3944
807f8a8c
LC		 3945 i = 0;
3946 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3947 /* user specified, bail out if channel not found */
3948 nla_for_each_nested(attr,
3949 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3950 tmp) {
3951 struct ieee80211_channel *chan;
3952
3953 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3954
3955 if (!chan) {
3956 err = -EINVAL;
3957 goto out_free;
3958 }
3959
3960 /* ignore disabled channels */
3961 if (chan->flags & IEEE80211_CHAN_DISABLED)
3962 continue;
3963
3964 request->channels[i] = chan;
3965 i++;
3966 }
3967 } else {
3968 /* all channels */
3969 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3970 int j;
3971 if (!wiphy->bands[band])
3972 continue;
3973 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3974 struct ieee80211_channel *chan;
3975
3976 chan = &wiphy->bands[band]->channels[j];
3977
3978 if (chan->flags & IEEE80211_CHAN_DISABLED)
3979 continue;
3980
3981 request->channels[i] = chan;
3982 i++;
3983 }
3984 }
3985 }
3986
3987 if (!i) {
3988 err = -EINVAL;
3989 goto out_free;
3990 }
3991
3992 request->n_channels = i;
3993
3994 i = 0;
3995 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3996 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3997 tmp) {
57a27e1d 3998 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3999 err = -EINVAL;
4000 goto out_free;
4001 }
57a27e1d 4002 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4003 memcpy(request->ssids[i].ssid, nla_data(attr),
4004 nla_len(attr));
807f8a8c
LC		 4005 i++;
4006 }
4007 }
4008
a1f1c21c
LC		 4009 i = 0;
4010 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4011 nla_for_each_nested(attr,
4012 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4013 tmp) {
4014 struct nlattr *ssid;
4015
4016 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4017 nla_data(attr), nla_len(attr),
4018 nl80211_match_policy);
4019 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4020 if (ssid) {
4021 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4022 err = -EINVAL;
4023 goto out_free;
4024 }
4025 memcpy(request->match_sets[i].ssid.ssid,
4026 nla_data(ssid), nla_len(ssid));
4027 request->match_sets[i].ssid.ssid_len =
4028 nla_len(ssid);
4029 }
4030 i++;
4031 }
4032 }
4033
807f8a8c
LC		 4034 if (info->attrs[NL80211_ATTR_IE]) {
4035 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4036 memcpy((void *)request->ie,
4037 nla_data(info->attrs[NL80211_ATTR_IE]),
4038 request->ie_len);
4039 }
4040
4041 request->dev = dev;
4042 request->wiphy = &rdev->wiphy;
bbe6ad6d 4043 request->interval = interval;
807f8a8c
LC		 4044
4045 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4046 if (!err) {
4047 rdev->sched_scan_req = request;
4048 nl80211_send_sched_scan(rdev, dev,
4049 NL80211_CMD_START_SCHED_SCAN);
4050 goto out;
4051 }
4052
4053out_free:
4054 kfree(request);
4055out:
c10841ca 4056 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4057 return err;
4058}
4059
4060static int nl80211_stop_sched_scan(struct sk_buff *skb,
4061 struct genl_info *info)
4062{
4063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4064 int err;
807f8a8c
LC		 4065
4066 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4067 !rdev->ops->sched_scan_stop)
4068 return -EOPNOTSUPP;
4069
c10841ca
LC		 4070 mutex_lock(&rdev->sched_scan_mtx);
4071 err = __cfg80211_stop_sched_scan(rdev, false);
4072 mutex_unlock(&rdev->sched_scan_mtx);
4073
4074 return err;
807f8a8c
LC		 4075}
4076
9720bb3a
JB		 4077static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4078 u32 seq, int flags,
2a519311 4079 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4080 struct wireless_dev *wdev,
4081 struct cfg80211_internal_bss *intbss)
2a519311 4082{
48ab905d 4083 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4084 void *hdr;
4085 struct nlattr *bss;
48ab905d
JB		 4086 int i;
4087
4088 ASSERT_WDEV_LOCK(wdev);
2a519311 4089
9720bb3a 4090 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4091 NL80211_CMD_NEW_SCAN_RESULTS);
4092 if (!hdr)
4093 return -1;
4094
9720bb3a
JB		 4095 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4096
f5ea9120 4097 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4098 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4099
4100 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4101 if (!bss)
4102 goto nla_put_failure;
4103 if (!is_zero_ether_addr(res->bssid))
4104 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4105 if (res->information_elements && res->len_information_elements)
4106 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4107 res->len_information_elements,
4108 res->information_elements);
34a6eddb
JM		 4109 if (res->beacon_ies && res->len_beacon_ies &&
4110 res->beacon_ies != res->information_elements)
4111 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4112 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4113 if (res->tsf)
4114 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4115 if (res->beacon_interval)
4116 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4117 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4118 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4119 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4120 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4121
77965c97 4122 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4123 case CFG80211_SIGNAL_TYPE_MBM:
4124 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4125 break;
4126 case CFG80211_SIGNAL_TYPE_UNSPEC:
4127 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4128 break;
4129 default:
4130 break;
4131 }
4132
48ab905d 4133 switch (wdev->iftype) {
074ac8df 4134 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4135 case NL80211_IFTYPE_STATION:
4136 if (intbss == wdev->current_bss)
4137 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4138 NL80211_BSS_STATUS_ASSOCIATED);
4139 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4140 if (intbss != wdev->auth_bsses[i])
4141 continue;
4142 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4143 NL80211_BSS_STATUS_AUTHENTICATED);
4144 break;
4145 }
4146 break;
4147 case NL80211_IFTYPE_ADHOC:
4148 if (intbss == wdev->current_bss)
4149 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4150 NL80211_BSS_STATUS_IBSS_JOINED);
4151 break;
4152 default:
4153 break;
4154 }
4155
2a519311
JB		 4156 nla_nest_end(msg, bss);
4157
4158 return genlmsg_end(msg, hdr);
4159
4160 nla_put_failure:
4161 genlmsg_cancel(msg, hdr);
4162 return -EMSGSIZE;
4163}
4164
4165static int nl80211_dump_scan(struct sk_buff *skb,
4166 struct netlink_callback *cb)
4167{
48ab905d
JB		 4168 struct cfg80211_registered_device *rdev;
4169 struct net_device *dev;
2a519311 4170 struct cfg80211_internal_bss *scan;
48ab905d 4171 struct wireless_dev *wdev;
2a519311
JB		 4172 int start = cb->args[1], idx = 0;
4173 int err;
4174
67748893
JB		 4175 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4176 if (err)
4177 return err;
2a519311 4178
48ab905d 4179 wdev = dev->ieee80211_ptr;
2a519311 4180
48ab905d
JB		 4181 wdev_lock(wdev);
4182 spin_lock_bh(&rdev->bss_lock);
4183 cfg80211_bss_expire(rdev);
4184
9720bb3a
JB		 4185 cb->seq = rdev->bss_generation;
4186
48ab905d 4187 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4188 if (++idx <= start)
4189 continue;
9720bb3a 4190 if (nl80211_send_bss(skb, cb,
2a519311 4191 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4192 rdev, wdev, scan) < 0) {
2a519311 4193 idx--;
67748893 4194 break;
2a519311
JB		 4195 }
4196 }
4197
48ab905d
JB		 4198 spin_unlock_bh(&rdev->bss_lock);
4199 wdev_unlock(wdev);
2a519311
JB		 4200
4201 cb->args[1] = idx;
67748893 4202 nl80211_finish_netdev_dump(rdev);
2a519311 4203
67748893 4204 return skb->len;
2a519311
JB		 4205}
4206
61fa713c
HS		 4207static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4208 int flags, struct net_device *dev,
4209 struct survey_info *survey)
4210{
4211 void *hdr;
4212 struct nlattr *infoattr;
4213
61fa713c
HS		 4214 hdr = nl80211hdr_put(msg, pid, seq, flags,
4215 NL80211_CMD_NEW_SURVEY_RESULTS);
4216 if (!hdr)
4217 return -ENOMEM;
4218
4219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4220
4221 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4222 if (!infoattr)
4223 goto nla_put_failure;
4224
4225 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4226 survey->channel->center_freq);
4227 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4228 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4229 survey->noise);
17e5a808
FF		 4230 if (survey->filled & SURVEY_INFO_IN_USE)
4231 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4232 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4233 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4234 survey->channel_time);
4235 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4236 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4237 survey->channel_time_busy);
4238 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4239 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4240 survey->channel_time_ext_busy);
4241 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4242 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4243 survey->channel_time_rx);
4244 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4245 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4246 survey->channel_time_tx);
61fa713c
HS		 4247
4248 nla_nest_end(msg, infoattr);
4249
4250 return genlmsg_end(msg, hdr);
4251
4252 nla_put_failure:
4253 genlmsg_cancel(msg, hdr);
4254 return -EMSGSIZE;
4255}
4256
4257static int nl80211_dump_survey(struct sk_buff *skb,
4258 struct netlink_callback *cb)
4259{
4260 struct survey_info survey;
4261 struct cfg80211_registered_device *dev;
4262 struct net_device *netdev;
61fa713c
HS		 4263 int survey_idx = cb->args[1];
4264 int res;
4265
67748893
JB		 4266 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4267 if (res)
4268 return res;
61fa713c
HS		 4269
4270 if (!dev->ops->dump_survey) {
4271 res = -EOPNOTSUPP;
4272 goto out_err;
4273 }
4274
4275 while (1) {
180cdc79
LR		 4276 struct ieee80211_channel *chan;
4277
61fa713c
HS		 4278 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4279 &survey);
4280 if (res == -ENOENT)
4281 break;
4282 if (res)
4283 goto out_err;
4284
180cdc79
LR		 4285 /* Survey without a channel doesn't make sense */
4286 if (!survey.channel) {
4287 res = -EINVAL;
4288 goto out;
4289 }
4290
4291 chan = ieee80211_get_channel(&dev->wiphy,
4292 survey.channel->center_freq);
4293 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4294 survey_idx++;
4295 continue;
4296 }
4297
61fa713c
HS		 4298 if (nl80211_send_survey(skb,
4299 NETLINK_CB(cb->skb).pid,
4300 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4301 netdev,
4302 &survey) < 0)
4303 goto out;
4304 survey_idx++;
4305 }
4306
4307 out:
4308 cb->args[1] = survey_idx;
4309 res = skb->len;
4310 out_err:
67748893 4311 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4312 return res;
4313}
4314
255e737e
JM		 4315static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4316{
b23aa676
SO		 4317 return auth_type <= NL80211_AUTHTYPE_MAX;
4318}
4319
4320static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4321{
4322 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4323 NL80211_WPA_VERSION_2));
4324}
4325
636a5d36
JM		 4326static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4327{
4c476991
JB		 4328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4329 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4330 struct ieee80211_channel *chan;
4331 const u8 *bssid, *ssid, *ie = NULL;
4332 int err, ssid_len, ie_len = 0;
4333 enum nl80211_auth_type auth_type;
fffd0934 4334 struct key_parse key;
d5cdfacb 4335 bool local_state_change;
636a5d36 4336
f4a11bb0
JB		 4337 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4338 return -EINVAL;
4339
4340 if (!info->attrs[NL80211_ATTR_MAC])
4341 return -EINVAL;
4342
1778092e
JM		 4343 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4344 return -EINVAL;
4345
19957bb3
JB		 4346 if (!info->attrs[NL80211_ATTR_SSID])
4347 return -EINVAL;
4348
4349 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4350 return -EINVAL;
4351
fffd0934
JB		 4352 err = nl80211_parse_key(info, &key);
4353 if (err)
4354 return err;
4355
4356 if (key.idx >= 0) {
e31b8213
JB		 4357 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4358 return -EINVAL;
fffd0934
JB		 4359 if (!key.p.key || !key.p.key_len)
4360 return -EINVAL;
4361 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4362 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4363 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4364 key.p.key_len != WLAN_KEY_LEN_WEP104))
4365 return -EINVAL;
4366 if (key.idx > 4)
4367 return -EINVAL;
4368 } else {
4369 key.p.key_len = 0;
4370 key.p.key = NULL;
4371 }
4372
afea0b7a
JB		 4373 if (key.idx >= 0) {
4374 int i;
4375 bool ok = false;
4376 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4377 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4378 ok = true;
4379 break;
4380 }
4381 }
4c476991
JB		 4382 if (!ok)
4383 return -EINVAL;
afea0b7a
JB		 4384 }
4385
4c476991
JB		 4386 if (!rdev->ops->auth)
4387 return -EOPNOTSUPP;
636a5d36 4388
074ac8df 4389 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4390 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4391 return -EOPNOTSUPP;
eec60b03 4392
19957bb3 4393 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4394 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4395 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4396 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4397 return -EINVAL;
636a5d36 4398
19957bb3
JB		 4399 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4400 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4401
4402 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4403 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4404 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4405 }
4406
19957bb3 4407 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4408 if (!nl80211_valid_auth_type(auth_type))
4409 return -EINVAL;
636a5d36 4410
d5cdfacb
JM		 4411 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4412
4c476991
JB		 4413 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4414 ssid, ssid_len, ie, ie_len,
4415 key.p.key, key.p.key_len, key.idx,
4416 local_state_change);
636a5d36
JM		 4417}
4418
c0692b8f
JB		 4419static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4420 struct genl_info *info,
3dc27d25
JB		 4421 struct cfg80211_crypto_settings *settings,
4422 int cipher_limit)
b23aa676 4423{
c0b2bbd8
JB		 4424 memset(settings, 0, sizeof(*settings));
4425
b23aa676
SO		 4426 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4427
c0692b8f
JB		 4428 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4429 u16 proto;
4430 proto = nla_get_u16(
4431 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4432 settings->control_port_ethertype = cpu_to_be16(proto);
4433 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4434 proto != ETH_P_PAE)
4435 return -EINVAL;
4436 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4437 settings->control_port_no_encrypt = true;
4438 } else
4439 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4440
b23aa676
SO		 4441 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4442 void *data;
4443 int len, i;
4444
4445 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4446 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4447 settings->n_ciphers_pairwise = len / sizeof(u32);
4448
4449 if (len % sizeof(u32))
4450 return -EINVAL;
4451
3dc27d25 4452 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4453 return -EINVAL;
4454
4455 memcpy(settings->ciphers_pairwise, data, len);
4456
4457 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4458 if (!cfg80211_supported_cipher_suite(
4459 &rdev->wiphy,
b23aa676
SO		 4460 settings->ciphers_pairwise[i]))
4461 return -EINVAL;
4462 }
4463
4464 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4465 settings->cipher_group =
4466 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4467 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4468 settings->cipher_group))
b23aa676
SO		 4469 return -EINVAL;
4470 }
4471
4472 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4473 settings->wpa_versions =
4474 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4475 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4476 return -EINVAL;
4477 }
4478
4479 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4480 void *data;
6d30240e 4481 int len;
b23aa676
SO		 4482
4483 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4484 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4485 settings->n_akm_suites = len / sizeof(u32);
4486
4487 if (len % sizeof(u32))
4488 return -EINVAL;
4489
1b9ca027
JM		 4490 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4491 return -EINVAL;
4492
b23aa676 4493 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4494 }
4495
4496 return 0;
4497}
4498
636a5d36
JM		 4499static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4500{
4c476991
JB		 4501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4502 struct net_device *dev = info->user_ptr[1];
19957bb3 4503 struct cfg80211_crypto_settings crypto;
f444de05 4504 struct ieee80211_channel *chan;
3e5d7649 4505 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4506 int err, ssid_len, ie_len = 0;
4507 bool use_mfp = false;
7e7c8926
BG		 4508 u32 flags = 0;
4509 struct ieee80211_ht_cap *ht_capa = NULL;
4510 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4511
f4a11bb0
JB		 4512 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4513 return -EINVAL;
4514
4515 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4516 !info->attrs[NL80211_ATTR_SSID] ||
4517 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4518 return -EINVAL;
4519
4c476991
JB		 4520 if (!rdev->ops->assoc)
4521 return -EOPNOTSUPP;
636a5d36 4522
074ac8df 4523 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4524 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4525 return -EOPNOTSUPP;
eec60b03 4526
19957bb3 4527 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4528
19957bb3
JB		 4529 chan = ieee80211_get_channel(&rdev->wiphy,
4530 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4531 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4532 return -EINVAL;
636a5d36 4533
19957bb3
JB		 4534 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4535 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4536
4537 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4538 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4539 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4540 }
4541
dc6382ce 4542 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4543 enum nl80211_mfp mfp =
dc6382ce 4544 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4545 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4546 use_mfp = true;
4c476991
JB		 4547 else if (mfp != NL80211_MFP_NO)
4548 return -EINVAL;
dc6382ce
JM		 4549 }
4550
3e5d7649
JB		 4551 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4552 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4553
7e7c8926
BG		 4554 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4555 flags |= ASSOC_REQ_DISABLE_HT;
4556
4557 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4558 ht_capa_mask =
4559 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4560
4561 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4562 if (!ht_capa_mask)
4563 return -EINVAL;
4564 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4565 }
4566
c0692b8f 4567 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4568 if (!err)
3e5d7649
JB		 4569 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4570 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4571 &crypto, flags, ht_capa,
4572 ht_capa_mask);
636a5d36 4573
636a5d36
JM		 4574 return err;
4575}
4576
4577static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4578{
4c476991
JB		 4579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4580 struct net_device *dev = info->user_ptr[1];
19957bb3 4581 const u8 *ie = NULL, *bssid;
4c476991 4582 int ie_len = 0;
19957bb3 4583 u16 reason_code;
d5cdfacb 4584 bool local_state_change;
636a5d36 4585
f4a11bb0
JB		 4586 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4587 return -EINVAL;
4588
4589 if (!info->attrs[NL80211_ATTR_MAC])
4590 return -EINVAL;
4591
4592 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4593 return -EINVAL;
4594
4c476991
JB		 4595 if (!rdev->ops->deauth)
4596 return -EOPNOTSUPP;
636a5d36 4597
074ac8df 4598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4599 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4600 return -EOPNOTSUPP;
eec60b03 4601
19957bb3 4602 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4603
19957bb3
JB		 4604 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4605 if (reason_code == 0) {
f4a11bb0 4606 /* Reason Code 0 is reserved */
4c476991 4607 return -EINVAL;
255e737e 4608 }
636a5d36
JM		 4609
4610 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4611 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4612 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4613 }
4614
d5cdfacb
JM		 4615 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4616
4c476991
JB		 4617 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4618 local_state_change);
636a5d36
JM		 4619}
4620
4621static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4622{
4c476991
JB		 4623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4624 struct net_device *dev = info->user_ptr[1];
19957bb3 4625 const u8 *ie = NULL, *bssid;
4c476991 4626 int ie_len = 0;
19957bb3 4627 u16 reason_code;
d5cdfacb 4628 bool local_state_change;
636a5d36 4629
f4a11bb0
JB		 4630 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4631 return -EINVAL;
4632
4633 if (!info->attrs[NL80211_ATTR_MAC])
4634 return -EINVAL;
4635
4636 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4637 return -EINVAL;
4638
4c476991
JB		 4639 if (!rdev->ops->disassoc)
4640 return -EOPNOTSUPP;
636a5d36 4641
074ac8df 4642 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4643 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4644 return -EOPNOTSUPP;
eec60b03 4645
19957bb3 4646 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4647
19957bb3
JB		 4648 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4649 if (reason_code == 0) {
f4a11bb0 4650 /* Reason Code 0 is reserved */
4c476991 4651 return -EINVAL;
255e737e 4652 }
636a5d36
JM		 4653
4654 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4655 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4656 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4657 }
4658
d5cdfacb
JM		 4659 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4660
4c476991
JB		 4661 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4662 local_state_change);
636a5d36
JM		 4663}
4664
dd5b4cc7
FF		 4665static bool
4666nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4667 int mcast_rate[IEEE80211_NUM_BANDS],
4668 int rateval)
4669{
4670 struct wiphy *wiphy = &rdev->wiphy;
4671 bool found = false;
4672 int band, i;
4673
4674 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4675 struct ieee80211_supported_band *sband;
4676
4677 sband = wiphy->bands[band];
4678 if (!sband)
4679 continue;
4680
4681 for (i = 0; i < sband->n_bitrates; i++) {
4682 if (sband->bitrates[i].bitrate == rateval) {
4683 mcast_rate[band] = i + 1;
4684 found = true;
4685 break;
4686 }
4687 }
4688 }
4689
4690 return found;
4691}
4692
04a773ad
JB		 4693static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4694{
4c476991
JB		 4695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4696 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4697 struct cfg80211_ibss_params ibss;
4698 struct wiphy *wiphy;
fffd0934 4699 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4700 int err;
4701
8e30bc55
JB		 4702 memset(&ibss, 0, sizeof(ibss));
4703
04a773ad
JB		 4704 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4705 return -EINVAL;
4706
4707 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4708 !info->attrs[NL80211_ATTR_SSID] ||
4709 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4710 return -EINVAL;
4711
8e30bc55
JB		 4712 ibss.beacon_interval = 100;
4713
4714 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4715 ibss.beacon_interval =
4716 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4717 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4718 return -EINVAL;
4719 }
4720
4c476991
JB		 4721 if (!rdev->ops->join_ibss)
4722 return -EOPNOTSUPP;
04a773ad 4723
4c476991
JB		 4724 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4725 return -EOPNOTSUPP;
04a773ad 4726
79c97e97 4727 wiphy = &rdev->wiphy;
04a773ad 4728
39193498 4729 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4730 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4731
4732 if (!is_valid_ether_addr(ibss.bssid))
4733 return -EINVAL;
4734 }
04a773ad
JB		 4735 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4736 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4737
4738 if (info->attrs[NL80211_ATTR_IE]) {
4739 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4740 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4741 }
4742
54858ee5
AS		 4743 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4744 enum nl80211_channel_type channel_type;
4745
4746 channel_type = nla_get_u32(
4747 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4748 if (channel_type != NL80211_CHAN_NO_HT &&
4749 channel_type != NL80211_CHAN_HT20 &&
4750 channel_type != NL80211_CHAN_HT40MINUS &&
4751 channel_type != NL80211_CHAN_HT40PLUS)
4752 return -EINVAL;
4753
4754 if (channel_type != NL80211_CHAN_NO_HT &&
4755 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4756 return -EINVAL;
4757
4758 ibss.channel_type = channel_type;
4759 } else {
4760 ibss.channel_type = NL80211_CHAN_NO_HT;
4761 }
4762
4763 ibss.channel = rdev_freq_to_chan(rdev,
4764 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4765 ibss.channel_type);
04a773ad
JB		 4766 if (!ibss.channel ||
4767 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4768 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4769 return -EINVAL;
04a773ad 4770
54858ee5
AS		 4771 /* Both channels should be able to initiate communication */
4772 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4773 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4774 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4775 ibss.channel_type))
4776 return -EINVAL;
4777
04a773ad 4778 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4779 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4780
fbd2c8dc
TP		 4781 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4782 u8 *rates =
4783 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4784 int n_rates =
4785 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4786 struct ieee80211_supported_band *sband =
4787 wiphy->bands[ibss.channel->band];
fbd2c8dc 4788
34850ab2
JB		 4789 err = ieee80211_get_ratemask(sband, rates, n_rates,
4790 &ibss.basic_rates);
4791 if (err)
4792 return err;
fbd2c8dc 4793 }
dd5b4cc7
FF		 4794
4795 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4796 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4797 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4798 return -EINVAL;
fbd2c8dc 4799
4c476991
JB		 4800 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4801 connkeys = nl80211_parse_connkeys(rdev,
4802 info->attrs[NL80211_ATTR_KEYS]);
4803 if (IS_ERR(connkeys))
4804 return PTR_ERR(connkeys);
4805 }
04a773ad 4806
4c476991 4807 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4808 if (err)
4809 kfree(connkeys);
04a773ad
JB		 4810 return err;
4811}
4812
4813static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4814{
4c476991
JB		 4815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4816 struct net_device *dev = info->user_ptr[1];
04a773ad 4817
4c476991
JB		 4818 if (!rdev->ops->leave_ibss)
4819 return -EOPNOTSUPP;
04a773ad 4820
4c476991
JB		 4821 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4822 return -EOPNOTSUPP;
04a773ad 4823
4c476991 4824 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4825}
4826
aff89a9b
JB		 4827#ifdef CONFIG_NL80211_TESTMODE
4828static struct genl_multicast_group nl80211_testmode_mcgrp = {
4829 .name = "testmode",
4830};
4831
4832static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4833{
4c476991 4834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4835 int err;
4836
4837 if (!info->attrs[NL80211_ATTR_TESTDATA])
4838 return -EINVAL;
4839
aff89a9b
JB		 4840 err = -EOPNOTSUPP;
4841 if (rdev->ops->testmode_cmd) {
4842 rdev->testmode_info = info;
4843 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4844 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4845 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4846 rdev->testmode_info = NULL;
4847 }
4848
aff89a9b
JB		 4849 return err;
4850}
4851
71063f0e
WYG		 4852static int nl80211_testmode_dump(struct sk_buff *skb,
4853 struct netlink_callback *cb)
4854{
00918d33 4855 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4856 int err;
4857 long phy_idx;
4858 void *data = NULL;
4859 int data_len = 0;
4860
4861 if (cb->args[0]) {
4862 /*
4863 * 0 is a valid index, but not valid for args[0],
4864 * so we need to offset by 1.
4865 */
4866 phy_idx = cb->args[0] - 1;
4867 } else {
4868 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4869 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4870 nl80211_policy);
4871 if (err)
4872 return err;
00918d33
JB		 4873 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4874 phy_idx = nla_get_u32(
4875 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4876 } else {
4877 struct net_device *netdev;
4878
4879 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4880 nl80211_fam.attrbuf,
4881 &rdev, &netdev);
4882 if (err)
4883 return err;
4884 dev_put(netdev);
4885 phy_idx = rdev->wiphy_idx;
4886 cfg80211_unlock_rdev(rdev);
4887 }
71063f0e
WYG		 4888 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4889 cb->args[1] =
4890 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4891 }
4892
4893 if (cb->args[1]) {
4894 data = nla_data((void *)cb->args[1]);
4895 data_len = nla_len((void *)cb->args[1]);
4896 }
4897
4898 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4899 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4900 if (!rdev) {
71063f0e
WYG		 4901 mutex_unlock(&cfg80211_mutex);
4902 return -ENOENT;
4903 }
00918d33 4904 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4905 mutex_unlock(&cfg80211_mutex);
4906
00918d33 4907 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4908 err = -EOPNOTSUPP;
4909 goto out_err;
4910 }
4911
4912 while (1) {
4913 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4914 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4915 NL80211_CMD_TESTMODE);
4916 struct nlattr *tmdata;
4917
00918d33 4918 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4919 genlmsg_cancel(skb, hdr);
4920 break;
4921 }
4922
4923 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4924 if (!tmdata) {
4925 genlmsg_cancel(skb, hdr);
4926 break;
4927 }
00918d33
JB		 4928 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4929 data, data_len);
71063f0e
WYG		 4930 nla_nest_end(skb, tmdata);
4931
4932 if (err == -ENOBUFS || err == -ENOENT) {
4933 genlmsg_cancel(skb, hdr);
4934 break;
4935 } else if (err) {
4936 genlmsg_cancel(skb, hdr);
4937 goto out_err;
4938 }
4939
4940 genlmsg_end(skb, hdr);
4941 }
4942
4943 err = skb->len;
4944 /* see above */
4945 cb->args[0] = phy_idx + 1;
4946 out_err:
00918d33 4947 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 4948 return err;
4949}
4950
aff89a9b
JB		 4951static struct sk_buff *
4952__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4953 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4954{
4955 struct sk_buff *skb;
4956 void *hdr;
4957 struct nlattr *data;
4958
4959 skb = nlmsg_new(approxlen + 100, gfp);
4960 if (!skb)
4961 return NULL;
4962
4963 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4964 if (!hdr) {
4965 kfree_skb(skb);
4966 return NULL;
4967 }
4968
4969 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4970 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4971
4972 ((void **)skb->cb)[0] = rdev;
4973 ((void **)skb->cb)[1] = hdr;
4974 ((void **)skb->cb)[2] = data;
4975
4976 return skb;
4977
4978 nla_put_failure:
4979 kfree_skb(skb);
4980 return NULL;
4981}
4982
4983struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4984 int approxlen)
4985{
4986 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4987
4988 if (WARN_ON(!rdev->testmode_info))
4989 return NULL;
4990
4991 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4992 rdev->testmode_info->snd_pid,
4993 rdev->testmode_info->snd_seq,
4994 GFP_KERNEL);
4995}
4996EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4997
4998int cfg80211_testmode_reply(struct sk_buff *skb)
4999{
5000 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5001 void *hdr = ((void **)skb->cb)[1];
5002 struct nlattr *data = ((void **)skb->cb)[2];
5003
5004 if (WARN_ON(!rdev->testmode_info)) {
5005 kfree_skb(skb);
5006 return -EINVAL;
5007 }
5008
5009 nla_nest_end(skb, data);
5010 genlmsg_end(skb, hdr);
5011 return genlmsg_reply(skb, rdev->testmode_info);
5012}
5013EXPORT_SYMBOL(cfg80211_testmode_reply);
5014
5015struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5016 int approxlen, gfp_t gfp)
5017{
5018 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5019
5020 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5021}
5022EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5023
5024void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5025{
5026 void *hdr = ((void **)skb->cb)[1];
5027 struct nlattr *data = ((void **)skb->cb)[2];
5028
5029 nla_nest_end(skb, data);
5030 genlmsg_end(skb, hdr);
5031 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5032}
5033EXPORT_SYMBOL(cfg80211_testmode_event);
5034#endif
5035
b23aa676
SO		 5036static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5037{
4c476991
JB		 5038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5039 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5040 struct cfg80211_connect_params connect;
5041 struct wiphy *wiphy;
fffd0934 5042 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5043 int err;
5044
5045 memset(&connect, 0, sizeof(connect));
5046
5047 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5048 return -EINVAL;
5049
5050 if (!info->attrs[NL80211_ATTR_SSID] ||
5051 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5052 return -EINVAL;
5053
5054 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5055 connect.auth_type =
5056 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5057 if (!nl80211_valid_auth_type(connect.auth_type))
5058 return -EINVAL;
5059 } else
5060 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5061
5062 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5063
c0692b8f 5064 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5065 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5066 if (err)
5067 return err;
b23aa676 5068
074ac8df 5069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5071 return -EOPNOTSUPP;
b23aa676 5072
79c97e97 5073 wiphy = &rdev->wiphy;
b23aa676 5074
b23aa676
SO		 5075 if (info->attrs[NL80211_ATTR_MAC])
5076 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5077 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5078 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5079
5080 if (info->attrs[NL80211_ATTR_IE]) {
5081 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5082 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5083 }
5084
5085 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5086 connect.channel =
5087 ieee80211_get_channel(wiphy,
5088 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5089 if (!connect.channel ||
4c476991
JB		 5090 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5091 return -EINVAL;
b23aa676
SO		 5092 }
5093
fffd0934
JB		 5094 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5095 connkeys = nl80211_parse_connkeys(rdev,
5096 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5097 if (IS_ERR(connkeys))
5098 return PTR_ERR(connkeys);
fffd0934
JB		 5099 }
5100
7e7c8926
BG		 5101 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5102 connect.flags |= ASSOC_REQ_DISABLE_HT;
5103
5104 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5105 memcpy(&connect.ht_capa_mask,
5106 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5107 sizeof(connect.ht_capa_mask));
5108
5109 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5110 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5111 return -EINVAL;
5112 memcpy(&connect.ht_capa,
5113 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5114 sizeof(connect.ht_capa));
5115 }
5116
fffd0934 5117 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5118 if (err)
5119 kfree(connkeys);
b23aa676
SO		 5120 return err;
5121}
5122
5123static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5124{
4c476991
JB		 5125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5126 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5127 u16 reason;
5128
5129 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5130 reason = WLAN_REASON_DEAUTH_LEAVING;
5131 else
5132 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5133
5134 if (reason == 0)
5135 return -EINVAL;
5136
074ac8df 5137 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5138 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5139 return -EOPNOTSUPP;
b23aa676 5140
4c476991 5141 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5142}
5143
463d0183
JB		 5144static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5145{
4c476991 5146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5147 struct net *net;
5148 int err;
5149 u32 pid;
5150
5151 if (!info->attrs[NL80211_ATTR_PID])
5152 return -EINVAL;
5153
5154 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5155
463d0183 5156 net = get_net_ns_by_pid(pid);
4c476991
JB		 5157 if (IS_ERR(net))
5158 return PTR_ERR(net);
463d0183
JB		 5159
5160 err = 0;
5161
5162 /* check if anything to do */
4c476991
JB		 5163 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5164 err = cfg80211_switch_netns(rdev, net);
463d0183 5165
463d0183 5166 put_net(net);
463d0183
JB		 5167 return err;
5168}
5169
67fbb16b
SO		 5170static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5171{
4c476991 5172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5173 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5174 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5175 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5176 struct cfg80211_pmksa pmksa;
5177
5178 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5179
5180 if (!info->attrs[NL80211_ATTR_MAC])
5181 return -EINVAL;
5182
5183 if (!info->attrs[NL80211_ATTR_PMKID])
5184 return -EINVAL;
5185
67fbb16b
SO		 5186 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5187 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5188
074ac8df 5189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5191 return -EOPNOTSUPP;
67fbb16b
SO		 5192
5193 switch (info->genlhdr->cmd) {
5194 case NL80211_CMD_SET_PMKSA:
5195 rdev_ops = rdev->ops->set_pmksa;
5196 break;
5197 case NL80211_CMD_DEL_PMKSA:
5198 rdev_ops = rdev->ops->del_pmksa;
5199 break;
5200 default:
5201 WARN_ON(1);
5202 break;
5203 }
5204
4c476991
JB		 5205 if (!rdev_ops)
5206 return -EOPNOTSUPP;
67fbb16b 5207
4c476991 5208 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5209}
5210
5211static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5212{
4c476991
JB		 5213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5214 struct net_device *dev = info->user_ptr[1];
67fbb16b 5215
074ac8df 5216 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5217 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5218 return -EOPNOTSUPP;
67fbb16b 5219
4c476991
JB		 5220 if (!rdev->ops->flush_pmksa)
5221 return -EOPNOTSUPP;
67fbb16b 5222
4c476991 5223 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5224}
5225
109086ce
AN		 5226static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5227{
5228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5229 struct net_device *dev = info->user_ptr[1];
5230 u8 action_code, dialog_token;
5231 u16 status_code;
5232 u8 *peer;
5233
5234 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5235 !rdev->ops->tdls_mgmt)
5236 return -EOPNOTSUPP;
5237
5238 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5239 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5240 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5241 !info->attrs[NL80211_ATTR_IE] ||
5242 !info->attrs[NL80211_ATTR_MAC])
5243 return -EINVAL;
5244
5245 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5246 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5247 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5248 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5249
5250 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5251 dialog_token, status_code,
5252 nla_data(info->attrs[NL80211_ATTR_IE]),
5253 nla_len(info->attrs[NL80211_ATTR_IE]));
5254}
5255
5256static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5257{
5258 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5259 struct net_device *dev = info->user_ptr[1];
5260 enum nl80211_tdls_operation operation;
5261 u8 *peer;
5262
5263 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5264 !rdev->ops->tdls_oper)
5265 return -EOPNOTSUPP;
5266
5267 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5268 !info->attrs[NL80211_ATTR_MAC])
5269 return -EINVAL;
5270
5271 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5272 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5273
5274 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5275}
5276
9588bbd5
JM		 5277static int nl80211_remain_on_channel(struct sk_buff *skb,
5278 struct genl_info *info)
5279{
4c476991
JB		 5280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5281 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5282 struct ieee80211_channel *chan;
5283 struct sk_buff *msg;
5284 void *hdr;
5285 u64 cookie;
5286 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5287 u32 freq, duration;
5288 int err;
5289
5290 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5291 !info->attrs[NL80211_ATTR_DURATION])
5292 return -EINVAL;
5293
5294 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5295
5296 /*
5297 * We should be on that channel for at least one jiffie,
5298 * and more than 5 seconds seems excessive.
5299 */
a293911d
JB		 5300 if (!duration || !msecs_to_jiffies(duration) ||
5301 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5302 return -EINVAL;
5303
7c4ef712
JB		 5304 if (!rdev->ops->remain_on_channel ||
5305 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5306 return -EOPNOTSUPP;
9588bbd5 5307
9588bbd5
JM		 5308 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5309 channel_type = nla_get_u32(
5310 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5311 if (channel_type != NL80211_CHAN_NO_HT &&
5312 channel_type != NL80211_CHAN_HT20 &&
5313 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5314 channel_type != NL80211_CHAN_HT40MINUS)
5315 return -EINVAL;
9588bbd5
JM		 5316 }
5317
5318 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5319 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5320 if (chan == NULL)
5321 return -EINVAL;
9588bbd5
JM		 5322
5323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5324 if (!msg)
5325 return -ENOMEM;
9588bbd5
JM		 5326
5327 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5328 NL80211_CMD_REMAIN_ON_CHANNEL);
5329
5330 if (IS_ERR(hdr)) {
5331 err = PTR_ERR(hdr);
5332 goto free_msg;
5333 }
5334
5335 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5336 channel_type, duration, &cookie);
5337
5338 if (err)
5339 goto free_msg;
5340
5341 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5342
5343 genlmsg_end(msg, hdr);
4c476991
JB		 5344
5345 return genlmsg_reply(msg, info);
9588bbd5
JM		 5346
5347 nla_put_failure:
5348 err = -ENOBUFS;
5349 free_msg:
5350 nlmsg_free(msg);
9588bbd5
JM		 5351 return err;
5352}
5353
5354static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5355 struct genl_info *info)
5356{
4c476991
JB		 5357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5358 struct net_device *dev = info->user_ptr[1];
9588bbd5 5359 u64 cookie;
9588bbd5
JM		 5360
5361 if (!info->attrs[NL80211_ATTR_COOKIE])
5362 return -EINVAL;
5363
4c476991
JB		 5364 if (!rdev->ops->cancel_remain_on_channel)
5365 return -EOPNOTSUPP;
9588bbd5 5366
9588bbd5
JM		 5367 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5368
4c476991 5369 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5370}
5371
13ae75b1
JM		 5372static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5373 u8 *rates, u8 rates_len)
5374{
5375 u8 i;
5376 u32 mask = 0;
5377
5378 for (i = 0; i < rates_len; i++) {
5379 int rate = (rates[i] & 0x7f) * 5;
5380 int ridx;
5381 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5382 struct ieee80211_rate *srate =
5383 &sband->bitrates[ridx];
5384 if (rate == srate->bitrate) {
5385 mask |= 1 << ridx;
5386 break;
5387 }
5388 }
5389 if (ridx == sband->n_bitrates)
5390 return 0; /* rate not found */
5391 }
5392
5393 return mask;
5394}
5395
24db78c0
SW		 5396static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5397 u8 *rates, u8 rates_len,
5398 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5399{
5400 u8 i;
5401
5402 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5403
5404 for (i = 0; i < rates_len; i++) {
5405 int ridx, rbit;
5406
5407 ridx = rates[i] / 8;
5408 rbit = BIT(rates[i] % 8);
5409
5410 /* check validity */
5411 if ((ridx < 0) || (ridx > IEEE80211_HT_MCS_MASK_LEN))
5412 return false;
5413
5414 /* check availability */
5415 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5416 mcs[ridx] |= rbit;
5417 else
5418 return false;
5419 }
5420
5421 return true;
5422}
5423
b54452b0 5424static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5425 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5426 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5427 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5428 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5429};
5430
5431static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5432 struct genl_info *info)
5433{
5434 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5436 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5437 int rem, i;
5438 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5439 struct nlattr *tx_rates;
5440 struct ieee80211_supported_band *sband;
5441
5442 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5443 return -EINVAL;
5444
4c476991
JB		 5445 if (!rdev->ops->set_bitrate_mask)
5446 return -EOPNOTSUPP;
13ae75b1
JM		 5447
5448 memset(&mask, 0, sizeof(mask));
5449 /* Default to all rates enabled */
5450 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5451 sband = rdev->wiphy.bands[i];
5452 mask.control[i].legacy =
5453 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5454 if (sband)
5455 memcpy(mask.control[i].mcs,
5456 sband->ht_cap.mcs.rx_mask,
5457 sizeof(mask.control[i].mcs));
5458 else
5459 memset(mask.control[i].mcs, 0,
5460 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5461 }
5462
5463 /*
5464 * The nested attribute uses enum nl80211_band as the index. This maps
5465 * directly to the enum ieee80211_band values used in cfg80211.
5466 */
24db78c0 5467 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5468 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5469 {
5470 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5471 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5472 return -EINVAL;
13ae75b1 5473 sband = rdev->wiphy.bands[band];
4c476991
JB		 5474 if (sband == NULL)
5475 return -EINVAL;
13ae75b1
JM		 5476 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5477 nla_len(tx_rates), nl80211_txattr_policy);
5478 if (tb[NL80211_TXRATE_LEGACY]) {
5479 mask.control[band].legacy = rateset_to_mask(
5480 sband,
5481 nla_data(tb[NL80211_TXRATE_LEGACY]),
5482 nla_len(tb[NL80211_TXRATE_LEGACY]));
24db78c0
SW		 5483 }
5484 if (tb[NL80211_TXRATE_MCS]) {
5485 if (!ht_rateset_to_mask(
5486 sband,
5487 nla_data(tb[NL80211_TXRATE_MCS]),
5488 nla_len(tb[NL80211_TXRATE_MCS]),
5489 mask.control[band].mcs))
5490 return -EINVAL;
5491 }
5492
5493 if (mask.control[band].legacy == 0) {
5494 /* don't allow empty legacy rates if HT
5495 * is not even supported. */
5496 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5497 return -EINVAL;
5498
5499 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5500 if (mask.control[band].mcs[i])
5501 break;
5502
5503 /* legacy and mcs rates may not be both empty */
5504 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5505 return -EINVAL;
13ae75b1
JM		 5506 }
5507 }
5508
4c476991 5509 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5510}
5511
2e161f78 5512static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5513{
4c476991
JB		 5514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5515 struct net_device *dev = info->user_ptr[1];
2e161f78 5516 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5517
5518 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5519 return -EINVAL;
5520
2e161f78
JB		 5521 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5522 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5523
9d38d85d 5524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5526 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5527 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5528 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5529 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5530 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5531 return -EOPNOTSUPP;
026331c4
JM		 5532
5533 /* not much point in registering if we can't reply */
4c476991
JB		 5534 if (!rdev->ops->mgmt_tx)
5535 return -EOPNOTSUPP;
026331c4 5536
4c476991 5537 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5538 frame_type,
026331c4
JM		 5539 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5540 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5541}
5542
2e161f78 5543static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5544{
4c476991
JB		 5545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5546 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5547 struct ieee80211_channel *chan;
5548 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5549 bool channel_type_valid = false;
026331c4
JM		 5550 u32 freq;
5551 int err;
d64d373f 5552 void *hdr = NULL;
026331c4 5553 u64 cookie;
e247bd90 5554 struct sk_buff *msg = NULL;
f7ca38df 5555 unsigned int wait = 0;
e247bd90
JB		 5556 bool offchan, no_cck, dont_wait_for_ack;
5557
5558 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5559
5560 if (!info->attrs[NL80211_ATTR_FRAME] ||
5561 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5562 return -EINVAL;
5563
4c476991
JB		 5564 if (!rdev->ops->mgmt_tx)
5565 return -EOPNOTSUPP;
026331c4 5566
9d38d85d 5567 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5568 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5569 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5571 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5572 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5574 return -EOPNOTSUPP;
026331c4 5575
f7ca38df 5576 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5577 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5578 return -EINVAL;
5579 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5580 }
5581
026331c4
JM		 5582 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5583 channel_type = nla_get_u32(
5584 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5585 if (channel_type != NL80211_CHAN_NO_HT &&
5586 channel_type != NL80211_CHAN_HT20 &&
5587 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5588 channel_type != NL80211_CHAN_HT40MINUS)
5589 return -EINVAL;
252aa631 5590 channel_type_valid = true;
026331c4
JM		 5591 }
5592
f7ca38df
JB		 5593 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5594
7c4ef712
JB		 5595 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5596 return -EINVAL;
5597
e9f935e3
RM		 5598 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5599
026331c4
JM		 5600 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5601 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5602 if (chan == NULL)
5603 return -EINVAL;
026331c4 5604
e247bd90
JB		 5605 if (!dont_wait_for_ack) {
5606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5607 if (!msg)
5608 return -ENOMEM;
026331c4 5609
e247bd90
JB		 5610 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5611 NL80211_CMD_FRAME);
026331c4 5612
e247bd90
JB		 5613 if (IS_ERR(hdr)) {
5614 err = PTR_ERR(hdr);
5615 goto free_msg;
5616 }
026331c4 5617 }
e247bd90 5618
f7ca38df
JB		 5619 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5620 channel_type_valid, wait,
2e161f78
JB		 5621 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5622 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5623 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5624 if (err)
5625 goto free_msg;
5626
e247bd90
JB		 5627 if (msg) {
5628 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5629
e247bd90
JB		 5630 genlmsg_end(msg, hdr);
5631 return genlmsg_reply(msg, info);
5632 }
5633
5634 return 0;
026331c4
JM		 5635
5636 nla_put_failure:
5637 err = -ENOBUFS;
5638 free_msg:
5639 nlmsg_free(msg);
026331c4
JM		 5640 return err;
5641}
5642
f7ca38df
JB		 5643static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5644{
5645 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5646 struct net_device *dev = info->user_ptr[1];
5647 u64 cookie;
5648
5649 if (!info->attrs[NL80211_ATTR_COOKIE])
5650 return -EINVAL;
5651
5652 if (!rdev->ops->mgmt_tx_cancel_wait)
5653 return -EOPNOTSUPP;
5654
5655 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5656 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5660 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5661 return -EOPNOTSUPP;
5662
5663 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5664
5665 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5666}
5667
ffb9eb3d
KV		 5668static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5669{
4c476991 5670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5671 struct wireless_dev *wdev;
4c476991 5672 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5673 u8 ps_state;
5674 bool state;
5675 int err;
5676
4c476991
JB		 5677 if (!info->attrs[NL80211_ATTR_PS_STATE])
5678 return -EINVAL;
ffb9eb3d
KV		 5679
5680 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5681
4c476991
JB		 5682 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5683 return -EINVAL;
ffb9eb3d
KV		 5684
5685 wdev = dev->ieee80211_ptr;
5686
4c476991
JB		 5687 if (!rdev->ops->set_power_mgmt)
5688 return -EOPNOTSUPP;
ffb9eb3d
KV		 5689
5690 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5691
5692 if (state == wdev->ps)
4c476991 5693 return 0;
ffb9eb3d 5694
4c476991
JB		 5695 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5696 wdev->ps_timeout);
5697 if (!err)
5698 wdev->ps = state;
ffb9eb3d
KV		 5699 return err;
5700}
5701
5702static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5703{
4c476991 5704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5705 enum nl80211_ps_state ps_state;
5706 struct wireless_dev *wdev;
4c476991 5707 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5708 struct sk_buff *msg;
5709 void *hdr;
5710 int err;
5711
ffb9eb3d
KV		 5712 wdev = dev->ieee80211_ptr;
5713
4c476991
JB		 5714 if (!rdev->ops->set_power_mgmt)
5715 return -EOPNOTSUPP;
ffb9eb3d
KV		 5716
5717 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5718 if (!msg)
5719 return -ENOMEM;
ffb9eb3d
KV		 5720
5721 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5722 NL80211_CMD_GET_POWER_SAVE);
5723 if (!hdr) {
4c476991 5724 err = -ENOBUFS;
ffb9eb3d
KV		 5725 goto free_msg;
5726 }
5727
5728 if (wdev->ps)
5729 ps_state = NL80211_PS_ENABLED;
5730 else
5731 ps_state = NL80211_PS_DISABLED;
5732
5733 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5734
5735 genlmsg_end(msg, hdr);
4c476991 5736 return genlmsg_reply(msg, info);
ffb9eb3d 5737
4c476991 5738 nla_put_failure:
ffb9eb3d 5739 err = -ENOBUFS;
4c476991 5740 free_msg:
ffb9eb3d 5741 nlmsg_free(msg);
ffb9eb3d
KV		 5742 return err;
5743}
5744
d6dc1a38
JO		 5745static struct nla_policy
5746nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5747 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5748 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5749 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5750};
5751
5752static int nl80211_set_cqm_rssi(struct genl_info *info,
5753 s32 threshold, u32 hysteresis)
5754{
4c476991 5755 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5756 struct wireless_dev *wdev;
4c476991 5757 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5758
5759 if (threshold > 0)
5760 return -EINVAL;
5761
d6dc1a38
JO		 5762 wdev = dev->ieee80211_ptr;
5763
4c476991
JB		 5764 if (!rdev->ops->set_cqm_rssi_config)
5765 return -EOPNOTSUPP;
d6dc1a38 5766
074ac8df 5767 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5768 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5769 return -EOPNOTSUPP;
d6dc1a38 5770
4c476991
JB		 5771 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5772 threshold, hysteresis);
d6dc1a38
JO		 5773}
5774
5775static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5776{
5777 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5778 struct nlattr *cqm;
5779 int err;
5780
5781 cqm = info->attrs[NL80211_ATTR_CQM];
5782 if (!cqm) {
5783 err = -EINVAL;
5784 goto out;
5785 }
5786
5787 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5788 nl80211_attr_cqm_policy);
5789 if (err)
5790 goto out;
5791
5792 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5793 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5794 s32 threshold;
5795 u32 hysteresis;
5796 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5797 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5798 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5799 } else
5800 err = -EINVAL;
5801
5802out:
5803 return err;
5804}
5805
29cbe68c
JB		 5806static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5807{
5808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5809 struct net_device *dev = info->user_ptr[1];
5810 struct mesh_config cfg;
c80d545d 5811 struct mesh_setup setup;
29cbe68c
JB		 5812 int err;
5813
5814 /* start with default */
5815 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5816 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5817
24bdd9f4 5818 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5819 /* and parse parameters if given */
24bdd9f4 5820 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5821 if (err)
5822 return err;
5823 }
5824
5825 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5826 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5827 return -EINVAL;
5828
c80d545d
JC		 5829 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5830 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5831
4bb62344
CYY		 5832 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5833 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5834 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5835 return -EINVAL;
5836
c80d545d
JC		 5837 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5838 /* parse additional setup parameters if given */
5839 err = nl80211_parse_mesh_setup(info, &setup);
5840 if (err)
5841 return err;
5842 }
5843
5844 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5845}
5846
5847static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5848{
5849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5850 struct net_device *dev = info->user_ptr[1];
5851
5852 return cfg80211_leave_mesh(rdev, dev);
5853}
5854
ff1b6e69
JB		 5855static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5856{
5857 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5858 struct sk_buff *msg;
5859 void *hdr;
5860
5861 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5862 return -EOPNOTSUPP;
5863
5864 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5865 if (!msg)
5866 return -ENOMEM;
5867
5868 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5869 NL80211_CMD_GET_WOWLAN);
5870 if (!hdr)
5871 goto nla_put_failure;
5872
5873 if (rdev->wowlan) {
5874 struct nlattr *nl_wowlan;
5875
5876 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5877 if (!nl_wowlan)
5878 goto nla_put_failure;
5879
5880 if (rdev->wowlan->any)
5881 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5882 if (rdev->wowlan->disconnect)
5883 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5884 if (rdev->wowlan->magic_pkt)
5885 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5886 if (rdev->wowlan->gtk_rekey_failure)
5887 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5888 if (rdev->wowlan->eap_identity_req)
5889 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5890 if (rdev->wowlan->four_way_handshake)
5891 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5892 if (rdev->wowlan->rfkill_release)
5893 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5894 if (rdev->wowlan->n_patterns) {
5895 struct nlattr *nl_pats, *nl_pat;
5896 int i, pat_len;
5897
5898 nl_pats = nla_nest_start(msg,
5899 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5900 if (!nl_pats)
5901 goto nla_put_failure;
5902
5903 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5904 nl_pat = nla_nest_start(msg, i + 1);
5905 if (!nl_pat)
5906 goto nla_put_failure;
5907 pat_len = rdev->wowlan->patterns[i].pattern_len;
5908 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5909 DIV_ROUND_UP(pat_len, 8),
5910 rdev->wowlan->patterns[i].mask);
5911 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5912 pat_len,
5913 rdev->wowlan->patterns[i].pattern);
5914 nla_nest_end(msg, nl_pat);
5915 }
5916 nla_nest_end(msg, nl_pats);
5917 }
5918
5919 nla_nest_end(msg, nl_wowlan);
5920 }
5921
5922 genlmsg_end(msg, hdr);
5923 return genlmsg_reply(msg, info);
5924
5925nla_put_failure:
5926 nlmsg_free(msg);
5927 return -ENOBUFS;
5928}
5929
5930static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5931{
5932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5933 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5934 struct cfg80211_wowlan no_triggers = {};
5935 struct cfg80211_wowlan new_triggers = {};
5936 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5937 int err, i;
5938
5939 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5940 return -EOPNOTSUPP;
5941
5942 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5943 goto no_triggers;
5944
5945 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5946 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5947 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5948 nl80211_wowlan_policy);
5949 if (err)
5950 return err;
5951
5952 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5953 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5954 return -EINVAL;
5955 new_triggers.any = true;
5956 }
5957
5958 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5959 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5960 return -EINVAL;
5961 new_triggers.disconnect = true;
5962 }
5963
5964 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5965 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5966 return -EINVAL;
5967 new_triggers.magic_pkt = true;
5968 }
5969
77dbbb13
JB		 5970 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5971 return -EINVAL;
5972
5973 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5974 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5975 return -EINVAL;
5976 new_triggers.gtk_rekey_failure = true;
5977 }
5978
5979 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5980 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5981 return -EINVAL;
5982 new_triggers.eap_identity_req = true;
5983 }
5984
5985 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5986 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5987 return -EINVAL;
5988 new_triggers.four_way_handshake = true;
5989 }
5990
5991 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5992 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5993 return -EINVAL;
5994 new_triggers.rfkill_release = true;
5995 }
5996
ff1b6e69
JB		 5997 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5998 struct nlattr *pat;
5999 int n_patterns = 0;
6000 int rem, pat_len, mask_len;
6001 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6002
6003 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6004 rem)
6005 n_patterns++;
6006 if (n_patterns > wowlan->n_patterns)
6007 return -EINVAL;
6008
6009 new_triggers.patterns = kcalloc(n_patterns,
6010 sizeof(new_triggers.patterns[0]),
6011 GFP_KERNEL);
6012 if (!new_triggers.patterns)
6013 return -ENOMEM;
6014
6015 new_triggers.n_patterns = n_patterns;
6016 i = 0;
6017
6018 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6019 rem) {
6020 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6021 nla_data(pat), nla_len(pat), NULL);
6022 err = -EINVAL;
6023 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6024 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6025 goto error;
6026 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6027 mask_len = DIV_ROUND_UP(pat_len, 8);
6028 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6029 mask_len)
6030 goto error;
6031 if (pat_len > wowlan->pattern_max_len ||
6032 pat_len < wowlan->pattern_min_len)
6033 goto error;
6034
6035 new_triggers.patterns[i].mask =
6036 kmalloc(mask_len + pat_len, GFP_KERNEL);
6037 if (!new_triggers.patterns[i].mask) {
6038 err = -ENOMEM;
6039 goto error;
6040 }
6041 new_triggers.patterns[i].pattern =
6042 new_triggers.patterns[i].mask + mask_len;
6043 memcpy(new_triggers.patterns[i].mask,
6044 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6045 mask_len);
6046 new_triggers.patterns[i].pattern_len = pat_len;
6047 memcpy(new_triggers.patterns[i].pattern,
6048 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6049 pat_len);
6050 i++;
6051 }
6052 }
6053
6054 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6055 struct cfg80211_wowlan *ntrig;
6056 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6057 GFP_KERNEL);
6058 if (!ntrig) {
6059 err = -ENOMEM;
6060 goto error;
6061 }
6062 cfg80211_rdev_free_wowlan(rdev);
6063 rdev->wowlan = ntrig;
6064 } else {
6065 no_triggers:
6066 cfg80211_rdev_free_wowlan(rdev);
6067 rdev->wowlan = NULL;
6068 }
6069
6070 return 0;
6071 error:
6072 for (i = 0; i < new_triggers.n_patterns; i++)
6073 kfree(new_triggers.patterns[i].mask);
6074 kfree(new_triggers.patterns);
6075 return err;
6076}
6077
e5497d76
JB		 6078static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6079{
6080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6081 struct net_device *dev = info->user_ptr[1];
6082 struct wireless_dev *wdev = dev->ieee80211_ptr;
6083 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6084 struct cfg80211_gtk_rekey_data rekey_data;
6085 int err;
6086
6087 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6088 return -EINVAL;
6089
6090 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6091 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6092 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6093 nl80211_rekey_policy);
6094 if (err)
6095 return err;
6096
6097 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6098 return -ERANGE;
6099 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6100 return -ERANGE;
6101 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6102 return -ERANGE;
6103
6104 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6105 NL80211_KEK_LEN);
6106 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6107 NL80211_KCK_LEN);
6108 memcpy(rekey_data.replay_ctr,
6109 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6110 NL80211_REPLAY_CTR_LEN);
6111
6112 wdev_lock(wdev);
6113 if (!wdev->current_bss) {
6114 err = -ENOTCONN;
6115 goto out;
6116 }
6117
6118 if (!rdev->ops->set_rekey_data) {
6119 err = -EOPNOTSUPP;
6120 goto out;
6121 }
6122
6123 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6124 out:
6125 wdev_unlock(wdev);
6126 return err;
6127}
6128
28946da7
JB		 6129static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6130 struct genl_info *info)
6131{
6132 struct net_device *dev = info->user_ptr[1];
6133 struct wireless_dev *wdev = dev->ieee80211_ptr;
6134
6135 if (wdev->iftype != NL80211_IFTYPE_AP &&
6136 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6137 return -EINVAL;
6138
6139 if (wdev->ap_unexpected_nlpid)
6140 return -EBUSY;
6141
6142 wdev->ap_unexpected_nlpid = info->snd_pid;
6143 return 0;
6144}
6145
7f6cf311
JB		 6146static int nl80211_probe_client(struct sk_buff *skb,
6147 struct genl_info *info)
6148{
6149 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6150 struct net_device *dev = info->user_ptr[1];
6151 struct wireless_dev *wdev = dev->ieee80211_ptr;
6152 struct sk_buff *msg;
6153 void *hdr;
6154 const u8 *addr;
6155 u64 cookie;
6156 int err;
6157
6158 if (wdev->iftype != NL80211_IFTYPE_AP &&
6159 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6160 return -EOPNOTSUPP;
6161
6162 if (!info->attrs[NL80211_ATTR_MAC])
6163 return -EINVAL;
6164
6165 if (!rdev->ops->probe_client)
6166 return -EOPNOTSUPP;
6167
6168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6169 if (!msg)
6170 return -ENOMEM;
6171
6172 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6173 NL80211_CMD_PROBE_CLIENT);
6174
6175 if (IS_ERR(hdr)) {
6176 err = PTR_ERR(hdr);
6177 goto free_msg;
6178 }
6179
6180 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6181
6182 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6183 if (err)
6184 goto free_msg;
6185
6186 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6187
6188 genlmsg_end(msg, hdr);
6189
6190 return genlmsg_reply(msg, info);
6191
6192 nla_put_failure:
6193 err = -ENOBUFS;
6194 free_msg:
6195 nlmsg_free(msg);
6196 return err;
6197}
6198
5e760230
JB		 6199static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6200{
6201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6202
6203 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6204 return -EOPNOTSUPP;
6205
6206 if (rdev->ap_beacons_nlpid)
6207 return -EBUSY;
6208
6209 rdev->ap_beacons_nlpid = info->snd_pid;
6210
6211 return 0;
6212}
6213
4c476991
JB		 6214#define NL80211_FLAG_NEED_WIPHY 0x01
6215#define NL80211_FLAG_NEED_NETDEV 0x02
6216#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6217#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6218#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6219 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6220
6221static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6222 struct genl_info *info)
6223{
6224 struct cfg80211_registered_device *rdev;
6225 struct net_device *dev;
6226 int err;
6227 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6228
6229 if (rtnl)
6230 rtnl_lock();
6231
6232 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6233 rdev = cfg80211_get_dev_from_info(info);
6234 if (IS_ERR(rdev)) {
6235 if (rtnl)
6236 rtnl_unlock();
6237 return PTR_ERR(rdev);
6238 }
6239 info->user_ptr[0] = rdev;
6240 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6241 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6242 &rdev, &dev);
4c476991
JB		 6243 if (err) {
6244 if (rtnl)
6245 rtnl_unlock();
6246 return err;
6247 }
41265714
JB		 6248 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6249 !netif_running(dev)) {
d537f5fd
JB		 6250 cfg80211_unlock_rdev(rdev);
6251 dev_put(dev);
41265714
JB		 6252 if (rtnl)
6253 rtnl_unlock();
6254 return -ENETDOWN;
6255 }
4c476991
JB		 6256 info->user_ptr[0] = rdev;
6257 info->user_ptr[1] = dev;
6258 }
6259
6260 return 0;
6261}
6262
6263static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6264 struct genl_info *info)
6265{
6266 if (info->user_ptr[0])
6267 cfg80211_unlock_rdev(info->user_ptr[0]);
6268 if (info->user_ptr[1])
6269 dev_put(info->user_ptr[1]);
6270 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6271 rtnl_unlock();
6272}
6273
55682965
JB		 6274static struct genl_ops nl80211_ops[] = {
6275 {
6276 .cmd = NL80211_CMD_GET_WIPHY,
6277 .doit = nl80211_get_wiphy,
6278 .dumpit = nl80211_dump_wiphy,
6279 .policy = nl80211_policy,
6280 /* can be retrieved by unprivileged users */
4c476991 6281 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6282 },
6283 {
6284 .cmd = NL80211_CMD_SET_WIPHY,
6285 .doit = nl80211_set_wiphy,
6286 .policy = nl80211_policy,
6287 .flags = GENL_ADMIN_PERM,
4c476991 6288 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6289 },
6290 {
6291 .cmd = NL80211_CMD_GET_INTERFACE,
6292 .doit = nl80211_get_interface,
6293 .dumpit = nl80211_dump_interface,
6294 .policy = nl80211_policy,
6295 /* can be retrieved by unprivileged users */
4c476991 6296 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6297 },
6298 {
6299 .cmd = NL80211_CMD_SET_INTERFACE,
6300 .doit = nl80211_set_interface,
6301 .policy = nl80211_policy,
6302 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6303 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6304 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6305 },
6306 {
6307 .cmd = NL80211_CMD_NEW_INTERFACE,
6308 .doit = nl80211_new_interface,
6309 .policy = nl80211_policy,
6310 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6311 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6312 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6313 },
6314 {
6315 .cmd = NL80211_CMD_DEL_INTERFACE,
6316 .doit = nl80211_del_interface,
6317 .policy = nl80211_policy,
41ade00f 6318 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6319 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6320 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6321 },
6322 {
6323 .cmd = NL80211_CMD_GET_KEY,
6324 .doit = nl80211_get_key,
6325 .policy = nl80211_policy,
6326 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6328 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6329 },
6330 {
6331 .cmd = NL80211_CMD_SET_KEY,
6332 .doit = nl80211_set_key,
6333 .policy = nl80211_policy,
6334 .flags = GENL_ADMIN_PERM,
41265714 6335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6336 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6337 },
6338 {
6339 .cmd = NL80211_CMD_NEW_KEY,
6340 .doit = nl80211_new_key,
6341 .policy = nl80211_policy,
6342 .flags = GENL_ADMIN_PERM,
41265714 6343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6344 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6345 },
6346 {
6347 .cmd = NL80211_CMD_DEL_KEY,
6348 .doit = nl80211_del_key,
6349 .policy = nl80211_policy,
55682965 6350 .flags = GENL_ADMIN_PERM,
41265714 6351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6352 NL80211_FLAG_NEED_RTNL,
55682965 6353 },
ed1b6cc7
JB		 6354 {
6355 .cmd = NL80211_CMD_SET_BEACON,
6356 .policy = nl80211_policy,
6357 .flags = GENL_ADMIN_PERM,
6358 .doit = nl80211_addset_beacon,
4c476991
JB		 6359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6360 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6361 },
6362 {
6363 .cmd = NL80211_CMD_NEW_BEACON,
6364 .policy = nl80211_policy,
6365 .flags = GENL_ADMIN_PERM,
6366 .doit = nl80211_addset_beacon,
4c476991
JB		 6367 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6368 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6369 },
6370 {
6371 .cmd = NL80211_CMD_DEL_BEACON,
6372 .policy = nl80211_policy,
6373 .flags = GENL_ADMIN_PERM,
6374 .doit = nl80211_del_beacon,
4c476991
JB		 6375 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6376 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6377 },
5727ef1b
JB		 6378 {
6379 .cmd = NL80211_CMD_GET_STATION,
6380 .doit = nl80211_get_station,
2ec600d6 6381 .dumpit = nl80211_dump_station,
5727ef1b 6382 .policy = nl80211_policy,
4c476991
JB		 6383 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6384 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6385 },
6386 {
6387 .cmd = NL80211_CMD_SET_STATION,
6388 .doit = nl80211_set_station,
6389 .policy = nl80211_policy,
6390 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6391 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6392 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6393 },
6394 {
6395 .cmd = NL80211_CMD_NEW_STATION,
6396 .doit = nl80211_new_station,
6397 .policy = nl80211_policy,
6398 .flags = GENL_ADMIN_PERM,
41265714 6399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6400 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6401 },
6402 {
6403 .cmd = NL80211_CMD_DEL_STATION,
6404 .doit = nl80211_del_station,
6405 .policy = nl80211_policy,
2ec600d6 6406 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6407 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6408 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6409 },
6410 {
6411 .cmd = NL80211_CMD_GET_MPATH,
6412 .doit = nl80211_get_mpath,
6413 .dumpit = nl80211_dump_mpath,
6414 .policy = nl80211_policy,
6415 .flags = GENL_ADMIN_PERM,
41265714 6416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6417 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6418 },
6419 {
6420 .cmd = NL80211_CMD_SET_MPATH,
6421 .doit = nl80211_set_mpath,
6422 .policy = nl80211_policy,
6423 .flags = GENL_ADMIN_PERM,
41265714 6424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6425 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6426 },
6427 {
6428 .cmd = NL80211_CMD_NEW_MPATH,
6429 .doit = nl80211_new_mpath,
6430 .policy = nl80211_policy,
6431 .flags = GENL_ADMIN_PERM,
41265714 6432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6433 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6434 },
6435 {
6436 .cmd = NL80211_CMD_DEL_MPATH,
6437 .doit = nl80211_del_mpath,
6438 .policy = nl80211_policy,
9f1ba906 6439 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6440 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6441 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6442 },
6443 {
6444 .cmd = NL80211_CMD_SET_BSS,
6445 .doit = nl80211_set_bss,
6446 .policy = nl80211_policy,
b2e1b302 6447 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6448 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6449 NL80211_FLAG_NEED_RTNL,
b2e1b302 6450 },
f130347c
LR		 6451 {
6452 .cmd = NL80211_CMD_GET_REG,
6453 .doit = nl80211_get_reg,
6454 .policy = nl80211_policy,
6455 /* can be retrieved by unprivileged users */
6456 },
b2e1b302
LR		 6457 {
6458 .cmd = NL80211_CMD_SET_REG,
6459 .doit = nl80211_set_reg,
6460 .policy = nl80211_policy,
6461 .flags = GENL_ADMIN_PERM,
6462 },
6463 {
6464 .cmd = NL80211_CMD_REQ_SET_REG,
6465 .doit = nl80211_req_set_reg,
6466 .policy = nl80211_policy,
93da9cc1 6467 .flags = GENL_ADMIN_PERM,
6468 },
6469 {
24bdd9f4
JC		 6470 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6471 .doit = nl80211_get_mesh_config,
93da9cc1 6472 .policy = nl80211_policy,
6473 /* can be retrieved by unprivileged users */
4c476991
JB		 6474 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6475 NL80211_FLAG_NEED_RTNL,
93da9cc1 6476 },
6477 {
24bdd9f4
JC		 6478 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6479 .doit = nl80211_update_mesh_config,
93da9cc1 6480 .policy = nl80211_policy,
9aed3cc1 6481 .flags = GENL_ADMIN_PERM,
29cbe68c 6482 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6483 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6484 },
2a519311
JB		 6485 {
6486 .cmd = NL80211_CMD_TRIGGER_SCAN,
6487 .doit = nl80211_trigger_scan,
6488 .policy = nl80211_policy,
6489 .flags = GENL_ADMIN_PERM,
41265714 6490 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6491 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6492 },
6493 {
6494 .cmd = NL80211_CMD_GET_SCAN,
6495 .policy = nl80211_policy,
6496 .dumpit = nl80211_dump_scan,
6497 },
807f8a8c
LC		 6498 {
6499 .cmd = NL80211_CMD_START_SCHED_SCAN,
6500 .doit = nl80211_start_sched_scan,
6501 .policy = nl80211_policy,
6502 .flags = GENL_ADMIN_PERM,
6503 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6504 NL80211_FLAG_NEED_RTNL,
6505 },
6506 {
6507 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6508 .doit = nl80211_stop_sched_scan,
6509 .policy = nl80211_policy,
6510 .flags = GENL_ADMIN_PERM,
6511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6512 NL80211_FLAG_NEED_RTNL,
6513 },
636a5d36
JM		 6514 {
6515 .cmd = NL80211_CMD_AUTHENTICATE,
6516 .doit = nl80211_authenticate,
6517 .policy = nl80211_policy,
6518 .flags = GENL_ADMIN_PERM,
41265714 6519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6520 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6521 },
6522 {
6523 .cmd = NL80211_CMD_ASSOCIATE,
6524 .doit = nl80211_associate,
6525 .policy = nl80211_policy,
6526 .flags = GENL_ADMIN_PERM,
41265714 6527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6528 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6529 },
6530 {
6531 .cmd = NL80211_CMD_DEAUTHENTICATE,
6532 .doit = nl80211_deauthenticate,
6533 .policy = nl80211_policy,
6534 .flags = GENL_ADMIN_PERM,
41265714 6535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6536 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6537 },
6538 {
6539 .cmd = NL80211_CMD_DISASSOCIATE,
6540 .doit = nl80211_disassociate,
6541 .policy = nl80211_policy,
6542 .flags = GENL_ADMIN_PERM,
41265714 6543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6544 NL80211_FLAG_NEED_RTNL,
636a5d36 6545 },
04a773ad
JB		 6546 {
6547 .cmd = NL80211_CMD_JOIN_IBSS,
6548 .doit = nl80211_join_ibss,
6549 .policy = nl80211_policy,
6550 .flags = GENL_ADMIN_PERM,
41265714 6551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6552 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6553 },
6554 {
6555 .cmd = NL80211_CMD_LEAVE_IBSS,
6556 .doit = nl80211_leave_ibss,
6557 .policy = nl80211_policy,
6558 .flags = GENL_ADMIN_PERM,
41265714 6559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6560 NL80211_FLAG_NEED_RTNL,
04a773ad 6561 },
aff89a9b
JB		 6562#ifdef CONFIG_NL80211_TESTMODE
6563 {
6564 .cmd = NL80211_CMD_TESTMODE,
6565 .doit = nl80211_testmode_do,
71063f0e 6566 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6567 .policy = nl80211_policy,
6568 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6569 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6570 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6571 },
6572#endif
b23aa676
SO		 6573 {
6574 .cmd = NL80211_CMD_CONNECT,
6575 .doit = nl80211_connect,
6576 .policy = nl80211_policy,
6577 .flags = GENL_ADMIN_PERM,
41265714 6578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6579 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6580 },
6581 {
6582 .cmd = NL80211_CMD_DISCONNECT,
6583 .doit = nl80211_disconnect,
6584 .policy = nl80211_policy,
6585 .flags = GENL_ADMIN_PERM,
41265714 6586 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6587 NL80211_FLAG_NEED_RTNL,
b23aa676 6588 },
463d0183
JB		 6589 {
6590 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6591 .doit = nl80211_wiphy_netns,
6592 .policy = nl80211_policy,
6593 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6594 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6595 NL80211_FLAG_NEED_RTNL,
463d0183 6596 },
61fa713c
HS		 6597 {
6598 .cmd = NL80211_CMD_GET_SURVEY,
6599 .policy = nl80211_policy,
6600 .dumpit = nl80211_dump_survey,
6601 },
67fbb16b
SO		 6602 {
6603 .cmd = NL80211_CMD_SET_PMKSA,
6604 .doit = nl80211_setdel_pmksa,
6605 .policy = nl80211_policy,
6606 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6607 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6608 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6609 },
6610 {
6611 .cmd = NL80211_CMD_DEL_PMKSA,
6612 .doit = nl80211_setdel_pmksa,
6613 .policy = nl80211_policy,
6614 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6615 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6616 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6617 },
6618 {
6619 .cmd = NL80211_CMD_FLUSH_PMKSA,
6620 .doit = nl80211_flush_pmksa,
6621 .policy = nl80211_policy,
6622 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6623 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6624 NL80211_FLAG_NEED_RTNL,
67fbb16b 6625 },
9588bbd5
JM		 6626 {
6627 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6628 .doit = nl80211_remain_on_channel,
6629 .policy = nl80211_policy,
6630 .flags = GENL_ADMIN_PERM,
41265714 6631 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6632 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6633 },
6634 {
6635 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6636 .doit = nl80211_cancel_remain_on_channel,
6637 .policy = nl80211_policy,
6638 .flags = GENL_ADMIN_PERM,
41265714 6639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6640 NL80211_FLAG_NEED_RTNL,
9588bbd5 6641 },
13ae75b1
JM		 6642 {
6643 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6644 .doit = nl80211_set_tx_bitrate_mask,
6645 .policy = nl80211_policy,
6646 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6647 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6648 NL80211_FLAG_NEED_RTNL,
13ae75b1 6649 },
026331c4 6650 {
2e161f78
JB		 6651 .cmd = NL80211_CMD_REGISTER_FRAME,
6652 .doit = nl80211_register_mgmt,
026331c4
JM		 6653 .policy = nl80211_policy,
6654 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6655 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6656 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6657 },
6658 {
2e161f78
JB		 6659 .cmd = NL80211_CMD_FRAME,
6660 .doit = nl80211_tx_mgmt,
026331c4 6661 .policy = nl80211_policy,
f7ca38df
JB		 6662 .flags = GENL_ADMIN_PERM,
6663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6664 NL80211_FLAG_NEED_RTNL,
6665 },
6666 {
6667 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6668 .doit = nl80211_tx_mgmt_cancel_wait,
6669 .policy = nl80211_policy,
026331c4 6670 .flags = GENL_ADMIN_PERM,
41265714 6671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6672 NL80211_FLAG_NEED_RTNL,
026331c4 6673 },
ffb9eb3d
KV		 6674 {
6675 .cmd = NL80211_CMD_SET_POWER_SAVE,
6676 .doit = nl80211_set_power_save,
6677 .policy = nl80211_policy,
6678 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6679 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6680 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6681 },
6682 {
6683 .cmd = NL80211_CMD_GET_POWER_SAVE,
6684 .doit = nl80211_get_power_save,
6685 .policy = nl80211_policy,
6686 /* can be retrieved by unprivileged users */
4c476991
JB		 6687 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6688 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6689 },
d6dc1a38
JO		 6690 {
6691 .cmd = NL80211_CMD_SET_CQM,
6692 .doit = nl80211_set_cqm,
6693 .policy = nl80211_policy,
6694 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6695 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6696 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6697 },
f444de05
JB		 6698 {
6699 .cmd = NL80211_CMD_SET_CHANNEL,
6700 .doit = nl80211_set_channel,
6701 .policy = nl80211_policy,
6702 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6703 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6704 NL80211_FLAG_NEED_RTNL,
f444de05 6705 },
e8347eba
BJ		 6706 {
6707 .cmd = NL80211_CMD_SET_WDS_PEER,
6708 .doit = nl80211_set_wds_peer,
6709 .policy = nl80211_policy,
6710 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6711 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6712 NL80211_FLAG_NEED_RTNL,
e8347eba 6713 },
29cbe68c
JB		 6714 {
6715 .cmd = NL80211_CMD_JOIN_MESH,
6716 .doit = nl80211_join_mesh,
6717 .policy = nl80211_policy,
6718 .flags = GENL_ADMIN_PERM,
6719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6720 NL80211_FLAG_NEED_RTNL,
6721 },
6722 {
6723 .cmd = NL80211_CMD_LEAVE_MESH,
6724 .doit = nl80211_leave_mesh,
6725 .policy = nl80211_policy,
6726 .flags = GENL_ADMIN_PERM,
6727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6728 NL80211_FLAG_NEED_RTNL,
6729 },
ff1b6e69
JB		 6730 {
6731 .cmd = NL80211_CMD_GET_WOWLAN,
6732 .doit = nl80211_get_wowlan,
6733 .policy = nl80211_policy,
6734 /* can be retrieved by unprivileged users */
6735 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6736 NL80211_FLAG_NEED_RTNL,
6737 },
6738 {
6739 .cmd = NL80211_CMD_SET_WOWLAN,
6740 .doit = nl80211_set_wowlan,
6741 .policy = nl80211_policy,
6742 .flags = GENL_ADMIN_PERM,
6743 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6744 NL80211_FLAG_NEED_RTNL,
6745 },
e5497d76
JB		 6746 {
6747 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6748 .doit = nl80211_set_rekey_data,
6749 .policy = nl80211_policy,
6750 .flags = GENL_ADMIN_PERM,
6751 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6752 NL80211_FLAG_NEED_RTNL,
6753 },
109086ce
AN		 6754 {
6755 .cmd = NL80211_CMD_TDLS_MGMT,
6756 .doit = nl80211_tdls_mgmt,
6757 .policy = nl80211_policy,
6758 .flags = GENL_ADMIN_PERM,
6759 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6760 NL80211_FLAG_NEED_RTNL,
6761 },
6762 {
6763 .cmd = NL80211_CMD_TDLS_OPER,
6764 .doit = nl80211_tdls_oper,
6765 .policy = nl80211_policy,
6766 .flags = GENL_ADMIN_PERM,
6767 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6768 NL80211_FLAG_NEED_RTNL,
6769 },
28946da7
JB		 6770 {
6771 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6772 .doit = nl80211_register_unexpected_frame,
6773 .policy = nl80211_policy,
6774 .flags = GENL_ADMIN_PERM,
6775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6776 NL80211_FLAG_NEED_RTNL,
6777 },
7f6cf311
JB		 6778 {
6779 .cmd = NL80211_CMD_PROBE_CLIENT,
6780 .doit = nl80211_probe_client,
6781 .policy = nl80211_policy,
6782 .flags = GENL_ADMIN_PERM,
6783 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6784 NL80211_FLAG_NEED_RTNL,
6785 },
5e760230
JB		 6786 {
6787 .cmd = NL80211_CMD_REGISTER_BEACONS,
6788 .doit = nl80211_register_beacons,
6789 .policy = nl80211_policy,
6790 .flags = GENL_ADMIN_PERM,
6791 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6792 NL80211_FLAG_NEED_RTNL,
6793 },
1d9d9213
SW		 6794 {
6795 .cmd = NL80211_CMD_SET_NOACK_MAP,
6796 .doit = nl80211_set_noack_map,
6797 .policy = nl80211_policy,
6798 .flags = GENL_ADMIN_PERM,
6799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6800 NL80211_FLAG_NEED_RTNL,
6801 },
6802
55682965 6803};
9588bbd5 6804
6039f6d2
JM		 6805static struct genl_multicast_group nl80211_mlme_mcgrp = {
6806 .name = "mlme",
6807};
55682965
JB		 6808
6809/* multicast groups */
6810static struct genl_multicast_group nl80211_config_mcgrp = {
6811 .name = "config",
6812};
2a519311
JB		 6813static struct genl_multicast_group nl80211_scan_mcgrp = {
6814 .name = "scan",
6815};
73d54c9e
LR		 6816static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6817 .name = "regulatory",
6818};
55682965
JB		 6819
6820/* notification functions */
6821
6822void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6823{
6824 struct sk_buff *msg;
6825
fd2120ca 6826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6827 if (!msg)
6828 return;
6829
6830 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6831 nlmsg_free(msg);
6832 return;
6833 }
6834
463d0183
JB		 6835 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6836 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6837}
6838
362a415d
JB		 6839static int nl80211_add_scan_req(struct sk_buff *msg,
6840 struct cfg80211_registered_device *rdev)
6841{
6842 struct cfg80211_scan_request *req = rdev->scan_req;
6843 struct nlattr *nest;
6844 int i;
6845
667503dd
JB		 6846 ASSERT_RDEV_LOCK(rdev);
6847
362a415d
JB		 6848 if (WARN_ON(!req))
6849 return 0;
6850
6851 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6852 if (!nest)
6853 goto nla_put_failure;
6854 for (i = 0; i < req->n_ssids; i++)
6855 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6856 nla_nest_end(msg, nest);
6857
6858 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6859 if (!nest)
6860 goto nla_put_failure;
6861 for (i = 0; i < req->n_channels; i++)
6862 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6863 nla_nest_end(msg, nest);
6864
6865 if (req->ie)
6866 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6867
6868 return 0;
6869 nla_put_failure:
6870 return -ENOBUFS;
6871}
6872
a538e2d5
JB		 6873static int nl80211_send_scan_msg(struct sk_buff *msg,
6874 struct cfg80211_registered_device *rdev,
6875 struct net_device *netdev,
6876 u32 pid, u32 seq, int flags,
6877 u32 cmd)
2a519311
JB		 6878{
6879 void *hdr;
6880
6881 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6882 if (!hdr)
6883 return -1;
6884
b5850a7a 6885 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6886 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6887
362a415d
JB		 6888 /* ignore errors and send incomplete event anyway */
6889 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6890
6891 return genlmsg_end(msg, hdr);
6892
6893 nla_put_failure:
6894 genlmsg_cancel(msg, hdr);
6895 return -EMSGSIZE;
6896}
6897
807f8a8c
LC		 6898static int
6899nl80211_send_sched_scan_msg(struct sk_buff *msg,
6900 struct cfg80211_registered_device *rdev,
6901 struct net_device *netdev,
6902 u32 pid, u32 seq, int flags, u32 cmd)
6903{
6904 void *hdr;
6905
6906 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6907 if (!hdr)
6908 return -1;
6909
6910 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6911 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6912
6913 return genlmsg_end(msg, hdr);
6914
6915 nla_put_failure:
6916 genlmsg_cancel(msg, hdr);
6917 return -EMSGSIZE;
6918}
6919
a538e2d5
JB		 6920void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6921 struct net_device *netdev)
6922{
6923 struct sk_buff *msg;
6924
6925 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6926 if (!msg)
6927 return;
6928
6929 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6930 NL80211_CMD_TRIGGER_SCAN) < 0) {
6931 nlmsg_free(msg);
6932 return;
6933 }
6934
463d0183
JB		 6935 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6936 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6937}
6938
2a519311
JB		 6939void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6940 struct net_device *netdev)
6941{
6942 struct sk_buff *msg;
6943
fd2120ca 6944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6945 if (!msg)
6946 return;
6947
a538e2d5
JB		 6948 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6949 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6950 nlmsg_free(msg);
6951 return;
6952 }
6953
463d0183
JB		 6954 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6955 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6956}
6957
6958void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6959 struct net_device *netdev)
6960{
6961 struct sk_buff *msg;
6962
fd2120ca 6963 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6964 if (!msg)
6965 return;
6966
a538e2d5
JB		 6967 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6968 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6969 nlmsg_free(msg);
6970 return;
6971 }
6972
463d0183
JB		 6973 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6974 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6975}
6976
807f8a8c
LC		 6977void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6978 struct net_device *netdev)
6979{
6980 struct sk_buff *msg;
6981
6982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6983 if (!msg)
6984 return;
6985
6986 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6987 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6988 nlmsg_free(msg);
6989 return;
6990 }
6991
6992 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6993 nl80211_scan_mcgrp.id, GFP_KERNEL);
6994}
6995
6996void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6997 struct net_device *netdev, u32 cmd)
6998{
6999 struct sk_buff *msg;
7000
7001 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7002 if (!msg)
7003 return;
7004
7005 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7006 nlmsg_free(msg);
7007 return;
7008 }
7009
7010 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7011 nl80211_scan_mcgrp.id, GFP_KERNEL);
7012}
7013
73d54c9e
LR		 7014/*
7015 * This can happen on global regulatory changes or device specific settings
7016 * based on custom world regulatory domains.
7017 */
7018void nl80211_send_reg_change_event(struct regulatory_request *request)
7019{
7020 struct sk_buff *msg;
7021 void *hdr;
7022
fd2120ca 7023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7024 if (!msg)
7025 return;
7026
7027 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7028 if (!hdr) {
7029 nlmsg_free(msg);
7030 return;
7031 }
7032
7033 /* Userspace can always count this one always being set */
7034 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7035
7036 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7037 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7038 NL80211_REGDOM_TYPE_WORLD);
7039 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7040 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7041 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7042 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7043 request->intersect)
7044 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7045 NL80211_REGDOM_TYPE_INTERSECTION);
7046 else {
7047 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7048 NL80211_REGDOM_TYPE_COUNTRY);
7049 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7050 }
7051
7052 if (wiphy_idx_valid(request->wiphy_idx))
7053 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7054
3b7b72ee 7055 genlmsg_end(msg, hdr);
73d54c9e 7056
bc43b28c 7057 rcu_read_lock();
463d0183 7058 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7059 GFP_ATOMIC);
7060 rcu_read_unlock();
73d54c9e
LR		 7061
7062 return;
7063
7064nla_put_failure:
7065 genlmsg_cancel(msg, hdr);
7066 nlmsg_free(msg);
7067}
7068
6039f6d2
JM		 7069static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7070 struct net_device *netdev,
7071 const u8 *buf, size_t len,
e6d6e342 7072 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7073{
7074 struct sk_buff *msg;
7075 void *hdr;
7076
e6d6e342 7077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7078 if (!msg)
7079 return;
7080
7081 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7082 if (!hdr) {
7083 nlmsg_free(msg);
7084 return;
7085 }
7086
7087 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7088 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7089 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7090
3b7b72ee 7091 genlmsg_end(msg, hdr);
6039f6d2 7092
463d0183
JB		 7093 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7094 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7095 return;
7096
7097 nla_put_failure:
7098 genlmsg_cancel(msg, hdr);
7099 nlmsg_free(msg);
7100}
7101
7102void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7103 struct net_device *netdev, const u8 *buf,
7104 size_t len, gfp_t gfp)
6039f6d2
JM		 7105{
7106 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7107 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7108}
7109
7110void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7111 struct net_device *netdev, const u8 *buf,
e6d6e342 7112 size_t len, gfp_t gfp)
6039f6d2 7113{
e6d6e342
JB		 7114 nl80211_send_mlme_event(rdev, netdev, buf, len,
7115 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7116}
7117
53b46b84 7118void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7119 struct net_device *netdev, const u8 *buf,
7120 size_t len, gfp_t gfp)
6039f6d2
JM		 7121{
7122 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7123 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7124}
7125
53b46b84
JM		 7126void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7127 struct net_device *netdev, const u8 *buf,
e6d6e342 7128 size_t len, gfp_t gfp)
6039f6d2
JM		 7129{
7130 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7131 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7132}
7133
cf4e594e
JM		 7134void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7135 struct net_device *netdev, const u8 *buf,
7136 size_t len, gfp_t gfp)
7137{
7138 nl80211_send_mlme_event(rdev, netdev, buf, len,
7139 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7140}
7141
7142void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7143 struct net_device *netdev, const u8 *buf,
7144 size_t len, gfp_t gfp)
7145{
7146 nl80211_send_mlme_event(rdev, netdev, buf, len,
7147 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7148}
7149
1b06bb40
LR		 7150static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7151 struct net_device *netdev, int cmd,
e6d6e342 7152 const u8 *addr, gfp_t gfp)
1965c853
JM		 7153{
7154 struct sk_buff *msg;
7155 void *hdr;
7156
e6d6e342 7157 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7158 if (!msg)
7159 return;
7160
7161 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7162 if (!hdr) {
7163 nlmsg_free(msg);
7164 return;
7165 }
7166
7167 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7168 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7169 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7170 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7171
3b7b72ee 7172 genlmsg_end(msg, hdr);
1965c853 7173
463d0183
JB		 7174 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7175 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7176 return;
7177
7178 nla_put_failure:
7179 genlmsg_cancel(msg, hdr);
7180 nlmsg_free(msg);
7181}
7182
7183void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7184 struct net_device *netdev, const u8 *addr,
7185 gfp_t gfp)
1965c853
JM		 7186{
7187 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7188 addr, gfp);
1965c853
JM		 7189}
7190
7191void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7192 struct net_device *netdev, const u8 *addr,
7193 gfp_t gfp)
1965c853 7194{
e6d6e342
JB		 7195 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7196 addr, gfp);
1965c853
JM		 7197}
7198
b23aa676
SO		 7199void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7200 struct net_device *netdev, const u8 *bssid,
7201 const u8 *req_ie, size_t req_ie_len,
7202 const u8 *resp_ie, size_t resp_ie_len,
7203 u16 status, gfp_t gfp)
7204{
7205 struct sk_buff *msg;
7206 void *hdr;
7207
7208 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7209 if (!msg)
7210 return;
7211
7212 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7213 if (!hdr) {
7214 nlmsg_free(msg);
7215 return;
7216 }
7217
7218 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7219 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7220 if (bssid)
7221 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7222 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7223 if (req_ie)
7224 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7225 if (resp_ie)
7226 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7227
3b7b72ee 7228 genlmsg_end(msg, hdr);
b23aa676 7229
463d0183
JB		 7230 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7231 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7232 return;
7233
7234 nla_put_failure:
7235 genlmsg_cancel(msg, hdr);
7236 nlmsg_free(msg);
7237
7238}
7239
7240void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7241 struct net_device *netdev, const u8 *bssid,
7242 const u8 *req_ie, size_t req_ie_len,
7243 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7244{
7245 struct sk_buff *msg;
7246 void *hdr;
7247
7248 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7249 if (!msg)
7250 return;
7251
7252 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7253 if (!hdr) {
7254 nlmsg_free(msg);
7255 return;
7256 }
7257
7258 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7259 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7260 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7261 if (req_ie)
7262 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7263 if (resp_ie)
7264 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7265
3b7b72ee 7266 genlmsg_end(msg, hdr);
b23aa676 7267
463d0183
JB		 7268 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7269 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7270 return;
7271
7272 nla_put_failure:
7273 genlmsg_cancel(msg, hdr);
7274 nlmsg_free(msg);
7275
7276}
7277
7278void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7279 struct net_device *netdev, u16 reason,
667503dd 7280 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7281{
7282 struct sk_buff *msg;
7283 void *hdr;
7284
667503dd 7285 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7286 if (!msg)
7287 return;
7288
7289 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7290 if (!hdr) {
7291 nlmsg_free(msg);
7292 return;
7293 }
7294
7295 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7296 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7297 if (from_ap && reason)
7298 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7299 if (from_ap)
7300 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7301 if (ie)
7302 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7303
3b7b72ee 7304 genlmsg_end(msg, hdr);
b23aa676 7305
463d0183
JB		 7306 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7307 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7308 return;
7309
7310 nla_put_failure:
7311 genlmsg_cancel(msg, hdr);
7312 nlmsg_free(msg);
7313
7314}
7315
04a773ad
JB		 7316void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7317 struct net_device *netdev, const u8 *bssid,
7318 gfp_t gfp)
7319{
7320 struct sk_buff *msg;
7321 void *hdr;
7322
fd2120ca 7323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7324 if (!msg)
7325 return;
7326
7327 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7328 if (!hdr) {
7329 nlmsg_free(msg);
7330 return;
7331 }
7332
7333 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7334 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7335 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7336
3b7b72ee 7337 genlmsg_end(msg, hdr);
04a773ad 7338
463d0183
JB		 7339 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7340 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7341 return;
7342
7343 nla_put_failure:
7344 genlmsg_cancel(msg, hdr);
7345 nlmsg_free(msg);
7346}
7347
c93b5e71
JC		 7348void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7349 struct net_device *netdev,
7350 const u8 *macaddr, const u8* ie, u8 ie_len,
7351 gfp_t gfp)
7352{
7353 struct sk_buff *msg;
7354 void *hdr;
7355
7356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7357 if (!msg)
7358 return;
7359
7360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7361 if (!hdr) {
7362 nlmsg_free(msg);
7363 return;
7364 }
7365
7366 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7367 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7368 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7369 if (ie_len && ie)
7370 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7371
3b7b72ee 7372 genlmsg_end(msg, hdr);
c93b5e71
JC		 7373
7374 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7375 nl80211_mlme_mcgrp.id, gfp);
7376 return;
7377
7378 nla_put_failure:
7379 genlmsg_cancel(msg, hdr);
7380 nlmsg_free(msg);
7381}
7382
a3b8b056
JM		 7383void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7384 struct net_device *netdev, const u8 *addr,
7385 enum nl80211_key_type key_type, int key_id,
e6d6e342 7386 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7387{
7388 struct sk_buff *msg;
7389 void *hdr;
7390
e6d6e342 7391 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7392 if (!msg)
7393 return;
7394
7395 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7396 if (!hdr) {
7397 nlmsg_free(msg);
7398 return;
7399 }
7400
7401 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7402 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7403 if (addr)
7404 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7405 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7406 if (key_id != -1)
7407 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7408 if (tsc)
7409 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7410
3b7b72ee 7411 genlmsg_end(msg, hdr);
a3b8b056 7412
463d0183
JB		 7413 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7414 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7415 return;
7416
7417 nla_put_failure:
7418 genlmsg_cancel(msg, hdr);
7419 nlmsg_free(msg);
7420}
7421
6bad8766
LR		 7422void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7423 struct ieee80211_channel *channel_before,
7424 struct ieee80211_channel *channel_after)
7425{
7426 struct sk_buff *msg;
7427 void *hdr;
7428 struct nlattr *nl_freq;
7429
fd2120ca 7430 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7431 if (!msg)
7432 return;
7433
7434 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7435 if (!hdr) {
7436 nlmsg_free(msg);
7437 return;
7438 }
7439
7440 /*
7441 * Since we are applying the beacon hint to a wiphy we know its
7442 * wiphy_idx is valid
7443 */
7444 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7445
7446 /* Before */
7447 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7448 if (!nl_freq)
7449 goto nla_put_failure;
7450 if (nl80211_msg_put_channel(msg, channel_before))
7451 goto nla_put_failure;
7452 nla_nest_end(msg, nl_freq);
7453
7454 /* After */
7455 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7456 if (!nl_freq)
7457 goto nla_put_failure;
7458 if (nl80211_msg_put_channel(msg, channel_after))
7459 goto nla_put_failure;
7460 nla_nest_end(msg, nl_freq);
7461
3b7b72ee 7462 genlmsg_end(msg, hdr);
6bad8766 7463
463d0183
JB		 7464 rcu_read_lock();
7465 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7466 GFP_ATOMIC);
7467 rcu_read_unlock();
6bad8766
LR		 7468
7469 return;
7470
7471nla_put_failure:
7472 genlmsg_cancel(msg, hdr);
7473 nlmsg_free(msg);
7474}
7475
9588bbd5
JM		 7476static void nl80211_send_remain_on_chan_event(
7477 int cmd, struct cfg80211_registered_device *rdev,
7478 struct net_device *netdev, u64 cookie,
7479 struct ieee80211_channel *chan,
7480 enum nl80211_channel_type channel_type,
7481 unsigned int duration, gfp_t gfp)
7482{
7483 struct sk_buff *msg;
7484 void *hdr;
7485
7486 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7487 if (!msg)
7488 return;
7489
7490 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7491 if (!hdr) {
7492 nlmsg_free(msg);
7493 return;
7494 }
7495
7496 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7497 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7499 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7500 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7501
7502 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7503 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7504
3b7b72ee 7505 genlmsg_end(msg, hdr);
9588bbd5
JM		 7506
7507 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7508 nl80211_mlme_mcgrp.id, gfp);
7509 return;
7510
7511 nla_put_failure:
7512 genlmsg_cancel(msg, hdr);
7513 nlmsg_free(msg);
7514}
7515
7516void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7517 struct net_device *netdev, u64 cookie,
7518 struct ieee80211_channel *chan,
7519 enum nl80211_channel_type channel_type,
7520 unsigned int duration, gfp_t gfp)
7521{
7522 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7523 rdev, netdev, cookie, chan,
7524 channel_type, duration, gfp);
7525}
7526
7527void nl80211_send_remain_on_channel_cancel(
7528 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7529 u64 cookie, struct ieee80211_channel *chan,
7530 enum nl80211_channel_type channel_type, gfp_t gfp)
7531{
7532 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7533 rdev, netdev, cookie, chan,
7534 channel_type, 0, gfp);
7535}
7536
98b62183
JB		 7537void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7538 struct net_device *dev, const u8 *mac_addr,
7539 struct station_info *sinfo, gfp_t gfp)
7540{
7541 struct sk_buff *msg;
7542
7543 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7544 if (!msg)
7545 return;
7546
7547 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7548 nlmsg_free(msg);
7549 return;
7550 }
7551
7552 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7553 nl80211_mlme_mcgrp.id, gfp);
7554}
7555
ec15e68b
JM		 7556void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7557 struct net_device *dev, const u8 *mac_addr,
7558 gfp_t gfp)
7559{
7560 struct sk_buff *msg;
7561 void *hdr;
7562
7563 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7564 if (!msg)
7565 return;
7566
7567 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7568 if (!hdr) {
7569 nlmsg_free(msg);
7570 return;
7571 }
7572
7573 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7574 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7575
3b7b72ee 7576 genlmsg_end(msg, hdr);
ec15e68b
JM		 7577
7578 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7579 nl80211_mlme_mcgrp.id, gfp);
7580 return;
7581
7582 nla_put_failure:
7583 genlmsg_cancel(msg, hdr);
7584 nlmsg_free(msg);
7585}
7586
b92ab5d8
JB		 7587static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7588 const u8 *addr, gfp_t gfp)
28946da7
JB		 7589{
7590 struct wireless_dev *wdev = dev->ieee80211_ptr;
7591 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7592 struct sk_buff *msg;
7593 void *hdr;
7594 int err;
7595 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7596
7597 if (!nlpid)
7598 return false;
7599
7600 msg = nlmsg_new(100, gfp);
7601 if (!msg)
7602 return true;
7603
b92ab5d8 7604 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7605 if (!hdr) {
7606 nlmsg_free(msg);
7607 return true;
7608 }
7609
7610 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7611 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7612 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7613
7614 err = genlmsg_end(msg, hdr);
7615 if (err < 0) {
7616 nlmsg_free(msg);
7617 return true;
7618 }
7619
7620 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7621 return true;
7622
7623 nla_put_failure:
7624 genlmsg_cancel(msg, hdr);
7625 nlmsg_free(msg);
7626 return true;
7627}
7628
b92ab5d8
JB		 7629bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7630{
7631 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7632 addr, gfp);
7633}
7634
7635bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7636 const u8 *addr, gfp_t gfp)
7637{
7638 return __nl80211_unexpected_frame(dev,
7639 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7640 addr, gfp);
7641}
7642
2e161f78
JB		 7643int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7644 struct net_device *netdev, u32 nlpid,
7645 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7646{
7647 struct sk_buff *msg;
7648 void *hdr;
026331c4
JM		 7649
7650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7651 if (!msg)
7652 return -ENOMEM;
7653
2e161f78 7654 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7655 if (!hdr) {
7656 nlmsg_free(msg);
7657 return -ENOMEM;
7658 }
7659
7660 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7661 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7662 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7663 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7664
3b7b72ee 7665 genlmsg_end(msg, hdr);
026331c4 7666
3b7b72ee 7667 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7668
7669 nla_put_failure:
7670 genlmsg_cancel(msg, hdr);
7671 nlmsg_free(msg);
7672 return -ENOBUFS;
7673}
7674
2e161f78
JB		 7675void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7676 struct net_device *netdev, u64 cookie,
7677 const u8 *buf, size_t len, bool ack,
7678 gfp_t gfp)
026331c4
JM		 7679{
7680 struct sk_buff *msg;
7681 void *hdr;
7682
7683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7684 if (!msg)
7685 return;
7686
2e161f78 7687 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7688 if (!hdr) {
7689 nlmsg_free(msg);
7690 return;
7691 }
7692
7693 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7694 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7695 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7696 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7697 if (ack)
7698 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7699
3b7b72ee 7700 genlmsg_end(msg, hdr);
026331c4
JM		 7701
7702 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7703 return;
7704
7705 nla_put_failure:
7706 genlmsg_cancel(msg, hdr);
7707 nlmsg_free(msg);
7708}
7709
d6dc1a38
JO		 7710void
7711nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7712 struct net_device *netdev,
7713 enum nl80211_cqm_rssi_threshold_event rssi_event,
7714 gfp_t gfp)
7715{
7716 struct sk_buff *msg;
7717 struct nlattr *pinfoattr;
7718 void *hdr;
7719
7720 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7721 if (!msg)
7722 return;
7723
7724 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7725 if (!hdr) {
7726 nlmsg_free(msg);
7727 return;
7728 }
7729
7730 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7731 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7732
7733 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7734 if (!pinfoattr)
7735 goto nla_put_failure;
7736
7737 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7738 rssi_event);
7739
7740 nla_nest_end(msg, pinfoattr);
7741
3b7b72ee 7742 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7743
7744 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7745 nl80211_mlme_mcgrp.id, gfp);
7746 return;
7747
7748 nla_put_failure:
7749 genlmsg_cancel(msg, hdr);
7750 nlmsg_free(msg);
7751}
7752
e5497d76
JB		 7753void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7754 struct net_device *netdev, const u8 *bssid,
7755 const u8 *replay_ctr, gfp_t gfp)
7756{
7757 struct sk_buff *msg;
7758 struct nlattr *rekey_attr;
7759 void *hdr;
7760
7761 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7762 if (!msg)
7763 return;
7764
7765 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7766 if (!hdr) {
7767 nlmsg_free(msg);
7768 return;
7769 }
7770
7771 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7772 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7773 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7774
7775 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7776 if (!rekey_attr)
7777 goto nla_put_failure;
7778
7779 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7780 NL80211_REPLAY_CTR_LEN, replay_ctr);
7781
7782 nla_nest_end(msg, rekey_attr);
7783
3b7b72ee 7784 genlmsg_end(msg, hdr);
e5497d76
JB		 7785
7786 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7787 nl80211_mlme_mcgrp.id, gfp);
7788 return;
7789
7790 nla_put_failure:
7791 genlmsg_cancel(msg, hdr);
7792 nlmsg_free(msg);
7793}
7794
c9df56b4
JM		 7795void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7796 struct net_device *netdev, int index,
7797 const u8 *bssid, bool preauth, gfp_t gfp)
7798{
7799 struct sk_buff *msg;
7800 struct nlattr *attr;
7801 void *hdr;
7802
7803 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7804 if (!msg)
7805 return;
7806
7807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7808 if (!hdr) {
7809 nlmsg_free(msg);
7810 return;
7811 }
7812
7813 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7814 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7815
7816 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7817 if (!attr)
7818 goto nla_put_failure;
7819
7820 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7821 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7822 if (preauth)
7823 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7824
7825 nla_nest_end(msg, attr);
7826
3b7b72ee 7827 genlmsg_end(msg, hdr);
c9df56b4
JM		 7828
7829 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7830 nl80211_mlme_mcgrp.id, gfp);
7831 return;
7832
7833 nla_put_failure:
7834 genlmsg_cancel(msg, hdr);
7835 nlmsg_free(msg);
7836}
7837
c063dbf5
JB		 7838void
7839nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7840 struct net_device *netdev, const u8 *peer,
7841 u32 num_packets, gfp_t gfp)
7842{
7843 struct sk_buff *msg;
7844 struct nlattr *pinfoattr;
7845 void *hdr;
7846
7847 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7848 if (!msg)
7849 return;
7850
7851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7852 if (!hdr) {
7853 nlmsg_free(msg);
7854 return;
7855 }
7856
7857 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7858 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7859 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7860
7861 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7862 if (!pinfoattr)
7863 goto nla_put_failure;
7864
7865 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7866
7867 nla_nest_end(msg, pinfoattr);
7868
3b7b72ee 7869 genlmsg_end(msg, hdr);
c063dbf5
JB		 7870
7871 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7872 nl80211_mlme_mcgrp.id, gfp);
7873 return;
7874
7875 nla_put_failure:
7876 genlmsg_cancel(msg, hdr);
7877 nlmsg_free(msg);
7878}
7879
7f6cf311
JB		 7880void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7881 u64 cookie, bool acked, gfp_t gfp)
7882{
7883 struct wireless_dev *wdev = dev->ieee80211_ptr;
7884 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7885 struct sk_buff *msg;
7886 void *hdr;
7887 int err;
7888
7889 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7890 if (!msg)
7891 return;
7892
7893 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7894 if (!hdr) {
7895 nlmsg_free(msg);
7896 return;
7897 }
7898
7899 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7900 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7901 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7902 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7903 if (acked)
7904 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7905
7906 err = genlmsg_end(msg, hdr);
7907 if (err < 0) {
7908 nlmsg_free(msg);
7909 return;
7910 }
7911
7912 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7913 nl80211_mlme_mcgrp.id, gfp);
7914 return;
7915
7916 nla_put_failure:
7917 genlmsg_cancel(msg, hdr);
7918 nlmsg_free(msg);
7919}
7920EXPORT_SYMBOL(cfg80211_probe_status);
7921
5e760230
JB		 7922void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7923 const u8 *frame, size_t len,
7924 int freq, gfp_t gfp)
7925{
7926 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7927 struct sk_buff *msg;
7928 void *hdr;
7929 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7930
7931 if (!nlpid)
7932 return;
7933
7934 msg = nlmsg_new(len + 100, gfp);
7935 if (!msg)
7936 return;
7937
7938 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7939 if (!hdr) {
7940 nlmsg_free(msg);
7941 return;
7942 }
7943
7944 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7945 if (freq)
7946 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7947 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7948
7949 genlmsg_end(msg, hdr);
7950
7951 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7952 return;
7953
7954 nla_put_failure:
7955 genlmsg_cancel(msg, hdr);
7956 nlmsg_free(msg);
7957}
7958EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7959
026331c4
JM		 7960static int nl80211_netlink_notify(struct notifier_block * nb,
7961 unsigned long state,
7962 void *_notify)
7963{
7964 struct netlink_notify *notify = _notify;
7965 struct cfg80211_registered_device *rdev;
7966 struct wireless_dev *wdev;
7967
7968 if (state != NETLINK_URELEASE)
7969 return NOTIFY_DONE;
7970
7971 rcu_read_lock();
7972
5e760230 7973 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7974 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7975 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7976 if (rdev->ap_beacons_nlpid == notify->pid)
7977 rdev->ap_beacons_nlpid = 0;
7978 }
026331c4
JM		 7979
7980 rcu_read_unlock();
7981
7982 return NOTIFY_DONE;
7983}
7984
7985static struct notifier_block nl80211_netlink_notifier = {
7986 .notifier_call = nl80211_netlink_notify,
7987};
7988
55682965
JB		 7989/* initialisation/exit functions */
7990
7991int nl80211_init(void)
7992{
0d63cbb5 7993 int err;
55682965 7994
0d63cbb5
MM		 7995 err = genl_register_family_with_ops(&nl80211_fam,
7996 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7997 if (err)
7998 return err;
7999
55682965
JB		 8000 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8001 if (err)
8002 goto err_out;
8003
2a519311
JB		 8004 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8005 if (err)
8006 goto err_out;
8007
73d54c9e
LR		 8008 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8009 if (err)
8010 goto err_out;
8011
6039f6d2
JM		 8012 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8013 if (err)
8014 goto err_out;
8015
aff89a9b
JB		 8016#ifdef CONFIG_NL80211_TESTMODE
8017 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8018 if (err)
8019 goto err_out;
8020#endif
8021
026331c4
JM		 8022 err = netlink_register_notifier(&nl80211_netlink_notifier);
8023 if (err)
8024 goto err_out;
8025
55682965
JB		 8026 return 0;
8027 err_out:
8028 genl_unregister_family(&nl80211_fam);
8029 return err;
8030}
8031
8032void nl80211_exit(void)
8033{
026331c4 8034 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8035 genl_unregister_family(&nl80211_fam);
8036}
Linux 6.x block layer and io_uring tree(s)