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ssb: add support for bcm5354
[GitHub/mt8127/android_kernel_alcatel_ttab.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:
bdd90d5e
JB		 2657 /*
2658 * Don't allow userspace to change the TDLS_PEER flag,
2659 * but silently ignore attempts to change it since we
2660 * don't have state here to verify that it doesn't try
2661 * to change the flag.
2662 */
2663 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
267335d6
AQ		 2664 /* fall through */
2665 case NL80211_IFTYPE_ADHOC:
2666 /* disallow things sta doesn't support */
2667 if (params.plink_action)
2668 return -EINVAL;
2669 if (params.ht_capa)
2670 return -EINVAL;
2671 if (params.listen_interval >= 0)
2672 return -EINVAL;
bdd90d5e
JB		 2673 /* reject any changes other than AUTHORIZED */
2674 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2675 return -EINVAL;
a97f4424
JB		 2676 break;
2677 case NL80211_IFTYPE_MESH_POINT:
2678 /* disallow things mesh doesn't support */
2679 if (params.vlan)
bdd90d5e 2680 return -EINVAL;
a97f4424 2681 if (params.ht_capa)
bdd90d5e 2682 return -EINVAL;
a97f4424 2683 if (params.listen_interval >= 0)
bdd90d5e
JB		 2684 return -EINVAL;
2685 /*
2686 * No special handling for TDLS here -- the userspace
2687 * mesh code doesn't have this bug.
2688 */
b39c48fa
JC		 2689 if (params.sta_flags_mask &
2690 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2691 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2692 BIT(NL80211_STA_FLAG_AUTHORIZED)))
bdd90d5e 2693 return -EINVAL;
a97f4424
JB		 2694 break;
2695 default:
bdd90d5e 2696 return -EOPNOTSUPP;
034d655e
JB		 2697 }
2698
bdd90d5e 2699 /* be aware of params.vlan when changing code here */
5727ef1b 2700
79c97e97 2701 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2702
5727ef1b
JB		 2703 if (params.vlan)
2704 dev_put(params.vlan);
3b85875a 2705
5727ef1b
JB		 2706 return err;
2707}
2708
c75786c9
EP		 2709static struct nla_policy
2710nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2711 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2712 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2713};
2714
5727ef1b
JB		 2715static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2716{
4c476991 2717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2718 int err;
4c476991 2719 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2720 struct station_parameters params;
2721 u8 *mac_addr = NULL;
2722
2723 memset(&params, 0, sizeof(params));
2724
2725 if (!info->attrs[NL80211_ATTR_MAC])
2726 return -EINVAL;
2727
5727ef1b
JB		 2728 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2729 return -EINVAL;
2730
2731 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2732 return -EINVAL;
2733
0e956c13
TLSC		 2734 if (!info->attrs[NL80211_ATTR_STA_AID])
2735 return -EINVAL;
2736
5727ef1b
JB		 2737 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2738 params.supported_rates =
2739 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2740 params.supported_rates_len =
2741 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2742 params.listen_interval =
2743 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2744
0e956c13
TLSC		 2745 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2746 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2747 return -EINVAL;
51b50fbe 2748
36aedc90
JM		 2749 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2750 params.ht_capa =
2751 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2752
96b78dff
JC		 2753 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2754 params.plink_action =
2755 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2756
bdd90d5e
JB		 2757 if (!rdev->ops->add_station)
2758 return -EOPNOTSUPP;
2759
bdd3ae3d 2760 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, &params))
5727ef1b
JB		 2761 return -EINVAL;
2762
bdd90d5e
JB		 2763 switch (dev->ieee80211_ptr->iftype) {
2764 case NL80211_IFTYPE_AP:
2765 case NL80211_IFTYPE_AP_VLAN:
2766 case NL80211_IFTYPE_P2P_GO:
2767 /* parse WME attributes if sta is WME capable */
2768 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
2769 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
2770 info->attrs[NL80211_ATTR_STA_WME]) {
2771 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2772 struct nlattr *nla;
2773
2774 nla = info->attrs[NL80211_ATTR_STA_WME];
2775 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2776 nl80211_sta_wme_policy);
2777 if (err)
2778 return err;
2779
2780 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2781 params.uapsd_queues =
2782 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
2783 if (params.uapsd_queues &
2784 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2785 return -EINVAL;
c75786c9 2786
bdd90d5e
JB		 2787 if (tb[NL80211_STA_WME_MAX_SP])
2788 params.max_sp =
2789 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
c75786c9 2790
bdd90d5e
JB		 2791 if (params.max_sp &
2792 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2793 return -EINVAL;
4319e193 2794
bdd90d5e
JB		 2795 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
2796 }
2797 /* TDLS peers cannot be added */
2798 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4319e193 2799 return -EINVAL;
bdd90d5e
JB		 2800 /* but don't bother the driver with it */
2801 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3b9ce80c 2802
bdd90d5e
JB		 2803 /* must be last in here for error handling */
2804 params.vlan = get_vlan(info, rdev);
2805 if (IS_ERR(params.vlan))
2806 return PTR_ERR(params.vlan);
2807 break;
2808 case NL80211_IFTYPE_MESH_POINT:
2809 /* TDLS peers cannot be added */
2810 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2811 return -EINVAL;
2812 break;
2813 case NL80211_IFTYPE_STATION:
2814 /* Only TDLS peers can be added */
2815 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2816 return -EINVAL;
2817 /* Can only add if TDLS ... */
2818 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
2819 return -EOPNOTSUPP;
2820 /* ... with external setup is supported */
2821 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2822 return -EOPNOTSUPP;
2823 break;
2824 default:
2825 return -EOPNOTSUPP;
c75786c9
EP		 2826 }
2827
bdd90d5e 2828 /* be aware of params.vlan when changing code here */
5727ef1b 2829
79c97e97 2830 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b 2831
5727ef1b
JB		 2832 if (params.vlan)
2833 dev_put(params.vlan);
5727ef1b
JB		 2834 return err;
2835}
2836
2837static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2838{
4c476991
JB		 2839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2840 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2841 u8 *mac_addr = NULL;
2842
2843 if (info->attrs[NL80211_ATTR_MAC])
2844 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2845
e80cf853 2846 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2847 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2848 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2849 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2850 return -EINVAL;
5727ef1b 2851
4c476991
JB		 2852 if (!rdev->ops->del_station)
2853 return -EOPNOTSUPP;
3b85875a 2854
4c476991 2855 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2856}
2857
2ec600d6
LCC		 2858static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2859 int flags, struct net_device *dev,
2860 u8 *dst, u8 *next_hop,
2861 struct mpath_info *pinfo)
2862{
2863 void *hdr;
2864 struct nlattr *pinfoattr;
2865
2866 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2867 if (!hdr)
2868 return -1;
2869
2870 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2871 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2872 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2873
f5ea9120
JB		 2874 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2875
2ec600d6
LCC		 2876 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2877 if (!pinfoattr)
2878 goto nla_put_failure;
2879 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2880 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2881 pinfo->frame_qlen);
d19b3bf6
RP		 2882 if (pinfo->filled & MPATH_INFO_SN)
2883 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2884 pinfo->sn);
2ec600d6
LCC		 2885 if (pinfo->filled & MPATH_INFO_METRIC)
2886 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2887 pinfo->metric);
2888 if (pinfo->filled & MPATH_INFO_EXPTIME)
2889 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2890 pinfo->exptime);
2891 if (pinfo->filled & MPATH_INFO_FLAGS)
2892 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2893 pinfo->flags);
2894 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2895 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2896 pinfo->discovery_timeout);
2897 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2898 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2899 pinfo->discovery_retries);
2900
2901 nla_nest_end(msg, pinfoattr);
2902
2903 return genlmsg_end(msg, hdr);
2904
2905 nla_put_failure:
bc3ed28c
TG		 2906 genlmsg_cancel(msg, hdr);
2907 return -EMSGSIZE;
2ec600d6
LCC		 2908}
2909
2910static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2911 struct netlink_callback *cb)
2ec600d6 2912{
2ec600d6
LCC		 2913 struct mpath_info pinfo;
2914 struct cfg80211_registered_device *dev;
bba95fef 2915 struct net_device *netdev;
2ec600d6
LCC		 2916 u8 dst[ETH_ALEN];
2917 u8 next_hop[ETH_ALEN];
bba95fef 2918 int path_idx = cb->args[1];
2ec600d6 2919 int err;
2ec600d6 2920
67748893
JB		 2921 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2922 if (err)
2923 return err;
bba95fef
JB		 2924
2925 if (!dev->ops->dump_mpath) {
eec60b03 2926 err = -EOPNOTSUPP;
bba95fef
JB		 2927 goto out_err;
2928 }
2929
eec60b03
JM		 2930 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2931 err = -EOPNOTSUPP;
0448b5fc 2932 goto out_err;
eec60b03
JM		 2933 }
2934
bba95fef
JB		 2935 while (1) {
2936 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2937 dst, next_hop, &pinfo);
2938 if (err == -ENOENT)
2ec600d6 2939 break;
bba95fef 2940 if (err)
3b85875a 2941 goto out_err;
2ec600d6 2942
bba95fef
JB		 2943 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2944 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2945 netdev, dst, next_hop,
2946 &pinfo) < 0)
2947 goto out;
2ec600d6 2948
bba95fef 2949 path_idx++;
2ec600d6 2950 }
2ec600d6 2951
2ec600d6 2952
bba95fef
JB		 2953 out:
2954 cb->args[1] = path_idx;
2955 err = skb->len;
bba95fef 2956 out_err:
67748893 2957 nl80211_finish_netdev_dump(dev);
bba95fef 2958 return err;
2ec600d6
LCC		 2959}
2960
2961static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2962{
4c476991 2963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2964 int err;
4c476991 2965 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2966 struct mpath_info pinfo;
2967 struct sk_buff *msg;
2968 u8 *dst = NULL;
2969 u8 next_hop[ETH_ALEN];
2970
2971 memset(&pinfo, 0, sizeof(pinfo));
2972
2973 if (!info->attrs[NL80211_ATTR_MAC])
2974 return -EINVAL;
2975
2976 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2977
4c476991
JB		 2978 if (!rdev->ops->get_mpath)
2979 return -EOPNOTSUPP;
2ec600d6 2980
4c476991
JB		 2981 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2982 return -EOPNOTSUPP;
eec60b03 2983
79c97e97 2984 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2985 if (err)
4c476991 2986 return err;
2ec600d6 2987
fd2120ca 2988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2989 if (!msg)
4c476991 2990 return -ENOMEM;
2ec600d6
LCC		 2991
2992 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2993 dev, dst, next_hop, &pinfo) < 0) {
2994 nlmsg_free(msg);
2995 return -ENOBUFS;
2996 }
3b85875a 2997
4c476991 2998 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2999}
3000
3001static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3002{
4c476991
JB		 3003 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3004 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3005 u8 *dst = NULL;
3006 u8 *next_hop = NULL;
3007
3008 if (!info->attrs[NL80211_ATTR_MAC])
3009 return -EINVAL;
3010
3011 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3012 return -EINVAL;
3013
3014 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3015 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3016
4c476991
JB		 3017 if (!rdev->ops->change_mpath)
3018 return -EOPNOTSUPP;
35a8efe1 3019
4c476991
JB		 3020 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3021 return -EOPNOTSUPP;
2ec600d6 3022
4c476991 3023 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 3024}
4c476991 3025
2ec600d6
LCC		 3026static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3027{
4c476991
JB		 3028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3029 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3030 u8 *dst = NULL;
3031 u8 *next_hop = NULL;
3032
3033 if (!info->attrs[NL80211_ATTR_MAC])
3034 return -EINVAL;
3035
3036 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3037 return -EINVAL;
3038
3039 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3040 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3041
4c476991
JB		 3042 if (!rdev->ops->add_mpath)
3043 return -EOPNOTSUPP;
35a8efe1 3044
4c476991
JB		 3045 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3046 return -EOPNOTSUPP;
2ec600d6 3047
4c476991 3048 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 3049}
3050
3051static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3052{
4c476991
JB		 3053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3054 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3055 u8 *dst = NULL;
3056
3057 if (info->attrs[NL80211_ATTR_MAC])
3058 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3059
4c476991
JB		 3060 if (!rdev->ops->del_mpath)
3061 return -EOPNOTSUPP;
3b85875a 3062
4c476991 3063 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3064}
3065
9f1ba906
JM		 3066static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3067{
4c476991
JB		 3068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3069 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3070 struct bss_parameters params;
3071
3072 memset(&params, 0, sizeof(params));
3073 /* default to not changing parameters */
3074 params.use_cts_prot = -1;
3075 params.use_short_preamble = -1;
3076 params.use_short_slot_time = -1;
fd8aaaf3 3077 params.ap_isolate = -1;
50b12f59 3078 params.ht_opmode = -1;
9f1ba906
JM		 3079
3080 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3081 params.use_cts_prot =
3082 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3083 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3084 params.use_short_preamble =
3085 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3086 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3087 params.use_short_slot_time =
3088 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3089 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3090 params.basic_rates =
3091 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3092 params.basic_rates_len =
3093 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3094 }
fd8aaaf3
FF		 3095 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3096 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3097 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3098 params.ht_opmode =
3099 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3100
4c476991
JB		 3101 if (!rdev->ops->change_bss)
3102 return -EOPNOTSUPP;
9f1ba906 3103
074ac8df 3104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3105 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3106 return -EOPNOTSUPP;
3b85875a 3107
4c476991 3108 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3109}
3110
b54452b0 3111static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3112 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3113 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3114 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3115 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3116 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3117 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3118};
3119
3120static int parse_reg_rule(struct nlattr *tb[],
3121 struct ieee80211_reg_rule *reg_rule)
3122{
3123 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3124 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3125
3126 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3127 return -EINVAL;
3128 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3129 return -EINVAL;
3130 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3131 return -EINVAL;
3132 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3133 return -EINVAL;
3134 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3135 return -EINVAL;
3136
3137 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3138
3139 freq_range->start_freq_khz =
3140 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3141 freq_range->end_freq_khz =
3142 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3143 freq_range->max_bandwidth_khz =
3144 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3145
3146 power_rule->max_eirp =
3147 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3148
3149 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3150 power_rule->max_antenna_gain =
3151 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3152
3153 return 0;
3154}
3155
3156static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3157{
3158 int r;
3159 char *data = NULL;
3160
80778f18
LR		 3161 /*
3162 * You should only get this when cfg80211 hasn't yet initialized
3163 * completely when built-in to the kernel right between the time
3164 * window between nl80211_init() and regulatory_init(), if that is
3165 * even possible.
3166 */
3167 mutex_lock(&cfg80211_mutex);
3168 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3169 mutex_unlock(&cfg80211_mutex);
3170 return -EINPROGRESS;
80778f18 3171 }
fe33eb39 3172 mutex_unlock(&cfg80211_mutex);
80778f18 3173
fe33eb39
LR		 3174 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3175 return -EINVAL;
b2e1b302
LR		 3176
3177 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3178
fe33eb39
LR		 3179 r = regulatory_hint_user(data);
3180
b2e1b302
LR		 3181 return r;
3182}
3183
24bdd9f4 3184static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3185 struct genl_info *info)
93da9cc1 3186{
4c476991 3187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3188 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3189 struct wireless_dev *wdev = dev->ieee80211_ptr;
3190 struct mesh_config cur_params;
3191 int err = 0;
93da9cc1 3192 void *hdr;
3193 struct nlattr *pinfoattr;
3194 struct sk_buff *msg;
3195
29cbe68c
JB		 3196 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3197 return -EOPNOTSUPP;
3198
24bdd9f4 3199 if (!rdev->ops->get_mesh_config)
4c476991 3200 return -EOPNOTSUPP;
f3f92586 3201
29cbe68c
JB		 3202 wdev_lock(wdev);
3203 /* If not connected, get default parameters */
3204 if (!wdev->mesh_id_len)
3205 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3206 else
24bdd9f4 3207 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3208 &cur_params);
3209 wdev_unlock(wdev);
3210
93da9cc1 3211 if (err)
4c476991 3212 return err;
93da9cc1 3213
3214 /* Draw up a netlink message to send back */
fd2120ca 3215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3216 if (!msg)
3217 return -ENOMEM;
93da9cc1 3218 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3219 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3220 if (!hdr)
efe1cf0c 3221 goto out;
24bdd9f4 3222 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3223 if (!pinfoattr)
3224 goto nla_put_failure;
3225 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3226 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3227 cur_params.dot11MeshRetryTimeout);
3228 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3229 cur_params.dot11MeshConfirmTimeout);
3230 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3231 cur_params.dot11MeshHoldingTimeout);
3232 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3233 cur_params.dot11MeshMaxPeerLinks);
3234 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3235 cur_params.dot11MeshMaxRetries);
3236 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3237 cur_params.dot11MeshTTL);
45904f21
JC		 3238 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3239 cur_params.element_ttl);
93da9cc1 3240 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3241 cur_params.auto_open_plinks);
3242 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3243 cur_params.dot11MeshHWMPmaxPREQretries);
3244 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3245 cur_params.path_refresh_time);
3246 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3247 cur_params.min_discovery_timeout);
3248 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3249 cur_params.dot11MeshHWMPactivePathTimeout);
3250 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3251 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3252 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3253 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3254 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3255 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3256 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3257 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3258 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3259 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3260 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3261 cur_params.dot11MeshGateAnnouncementProtocol);
94f90656
CYY		 3262 NLA_PUT_U8(msg, NL80211_MESHCONF_FORWARDING,
3263 cur_params.dot11MeshForwarding);
93da9cc1 3264 nla_nest_end(msg, pinfoattr);
3265 genlmsg_end(msg, hdr);
4c476991 3266 return genlmsg_reply(msg, info);
93da9cc1 3267
3b85875a 3268 nla_put_failure:
93da9cc1 3269 genlmsg_cancel(msg, hdr);
efe1cf0c 3270 out:
d080e275 3271 nlmsg_free(msg);
4c476991 3272 return -ENOBUFS;
93da9cc1 3273}
3274
b54452b0 3275static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3276 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3277 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3278 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3279 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3280 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3281 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3282 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3283 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3284
3285 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3286 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3287 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3288 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3289 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3290 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3291 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3292 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3293 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3294 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
94f90656 3295 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
93da9cc1 3296};
3297
c80d545d
JC		 3298static const struct nla_policy
3299 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3300 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3301 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3302 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3303 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3304 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3305 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3306};
3307
24bdd9f4 3308static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3309 struct mesh_config *cfg,
3310 u32 *mask_out)
93da9cc1 3311{
93da9cc1 3312 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3313 u32 mask = 0;
93da9cc1 3314
bd90fdcc
JB		 3315#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3316do {\
3317 if (table[attr_num]) {\
3318 cfg->param = nla_fn(table[attr_num]); \
3319 mask |= (1 << (attr_num - 1)); \
3320 } \
3321} while (0);\
3322
3323
24bdd9f4 3324 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3325 return -EINVAL;
3326 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3327 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3328 nl80211_meshconf_params_policy))
93da9cc1 3329 return -EINVAL;
3330
93da9cc1 3331 /* This makes sure that there aren't more than 32 mesh config
3332 * parameters (otherwise our bitfield scheme would not work.) */
3333 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3334
3335 /* Fill in the params struct */
93da9cc1 3336 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3337 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3339 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3340 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3341 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3343 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3344 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3345 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3346 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3347 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3348 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3349 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3350 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3351 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3352 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3353 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3354 nla_get_u8);
3355 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3356 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3358 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3359 nla_get_u16);
3360 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3361 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3362 nla_get_u32);
3363 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3364 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3365 nla_get_u16);
dca7e943
TP		 3366 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3367 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3368 nla_get_u16);
93da9cc1 3369 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3370 dot11MeshHWMPnetDiameterTraversalTime,
3371 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3372 nla_get_u16);
63c5723b
RP		 3373 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3374 dot11MeshHWMPRootMode, mask,
3375 NL80211_MESHCONF_HWMP_ROOTMODE,
3376 nla_get_u8);
0507e159
JC		 3377 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3378 dot11MeshHWMPRannInterval, mask,
3379 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3380 nla_get_u16);
16dd7267
JC		 3381 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3382 dot11MeshGateAnnouncementProtocol, mask,
3383 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3384 nla_get_u8);
94f90656
CYY		 3385 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3386 mask, NL80211_MESHCONF_FORWARDING, nla_get_u8);
bd90fdcc
JB		 3387 if (mask_out)
3388 *mask_out = mask;
c80d545d 3389
bd90fdcc
JB		 3390 return 0;
3391
3392#undef FILL_IN_MESH_PARAM_IF_SET
3393}
3394
c80d545d
JC		 3395static int nl80211_parse_mesh_setup(struct genl_info *info,
3396 struct mesh_setup *setup)
3397{
3398 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3399
3400 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3401 return -EINVAL;
3402 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3403 info->attrs[NL80211_ATTR_MESH_SETUP],
3404 nl80211_mesh_setup_params_policy))
3405 return -EINVAL;
3406
3407 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3408 setup->path_sel_proto =
3409 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3410 IEEE80211_PATH_PROTOCOL_VENDOR :
3411 IEEE80211_PATH_PROTOCOL_HWMP;
3412
3413 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3414 setup->path_metric =
3415 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3416 IEEE80211_PATH_METRIC_VENDOR :
3417 IEEE80211_PATH_METRIC_AIRTIME;
3418
581a8b0f
JC		 3419
3420 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3421 struct nlattr *ieattr =
581a8b0f 3422 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3423 if (!is_valid_ie_attr(ieattr))
3424 return -EINVAL;
581a8b0f
JC		 3425 setup->ie = nla_data(ieattr);
3426 setup->ie_len = nla_len(ieattr);
c80d545d 3427 }
b130e5ce
JC		 3428 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3429 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3430
3431 return 0;
3432}
3433
24bdd9f4 3434static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3435 struct genl_info *info)
bd90fdcc
JB		 3436{
3437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3438 struct net_device *dev = info->user_ptr[1];
29cbe68c 3439 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3440 struct mesh_config cfg;
3441 u32 mask;
3442 int err;
3443
29cbe68c
JB		 3444 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3445 return -EOPNOTSUPP;
3446
24bdd9f4 3447 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3448 return -EOPNOTSUPP;
3449
24bdd9f4 3450 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3451 if (err)
3452 return err;
3453
29cbe68c
JB		 3454 wdev_lock(wdev);
3455 if (!wdev->mesh_id_len)
3456 err = -ENOLINK;
3457
3458 if (!err)
24bdd9f4 3459 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3460 mask, &cfg);
3461
3462 wdev_unlock(wdev);
3463
3464 return err;
93da9cc1 3465}
3466
f130347c
LR		 3467static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3468{
3469 struct sk_buff *msg;
3470 void *hdr = NULL;
3471 struct nlattr *nl_reg_rules;
3472 unsigned int i;
3473 int err = -EINVAL;
3474
a1794390 3475 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3476
3477 if (!cfg80211_regdomain)
3478 goto out;
3479
fd2120ca 3480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3481 if (!msg) {
3482 err = -ENOBUFS;
3483 goto out;
3484 }
3485
3486 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3487 NL80211_CMD_GET_REG);
3488 if (!hdr)
efe1cf0c 3489 goto put_failure;
f130347c
LR		 3490
3491 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3492 cfg80211_regdomain->alpha2);
8b60b078
LR		 3493 if (cfg80211_regdomain->dfs_region)
3494 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3495 cfg80211_regdomain->dfs_region);
f130347c
LR		 3496
3497 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3498 if (!nl_reg_rules)
3499 goto nla_put_failure;
3500
3501 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3502 struct nlattr *nl_reg_rule;
3503 const struct ieee80211_reg_rule *reg_rule;
3504 const struct ieee80211_freq_range *freq_range;
3505 const struct ieee80211_power_rule *power_rule;
3506
3507 reg_rule = &cfg80211_regdomain->reg_rules[i];
3508 freq_range = &reg_rule->freq_range;
3509 power_rule = &reg_rule->power_rule;
3510
3511 nl_reg_rule = nla_nest_start(msg, i);
3512 if (!nl_reg_rule)
3513 goto nla_put_failure;
3514
3515 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3516 reg_rule->flags);
3517 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3518 freq_range->start_freq_khz);
3519 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3520 freq_range->end_freq_khz);
3521 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3522 freq_range->max_bandwidth_khz);
3523 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3524 power_rule->max_antenna_gain);
3525 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3526 power_rule->max_eirp);
3527
3528 nla_nest_end(msg, nl_reg_rule);
3529 }
3530
3531 nla_nest_end(msg, nl_reg_rules);
3532
3533 genlmsg_end(msg, hdr);
134e6375 3534 err = genlmsg_reply(msg, info);
f130347c
LR		 3535 goto out;
3536
3537nla_put_failure:
3538 genlmsg_cancel(msg, hdr);
efe1cf0c 3539put_failure:
d080e275 3540 nlmsg_free(msg);
f130347c
LR		 3541 err = -EMSGSIZE;
3542out:
a1794390 3543 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3544 return err;
3545}
3546
b2e1b302
LR		 3547static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3548{
3549 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3550 struct nlattr *nl_reg_rule;
3551 char *alpha2 = NULL;
3552 int rem_reg_rules = 0, r = 0;
3553 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3554 u8 dfs_region = 0;
b2e1b302
LR		 3555 struct ieee80211_regdomain *rd = NULL;
3556
3557 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3558 return -EINVAL;
3559
3560 if (!info->attrs[NL80211_ATTR_REG_RULES])
3561 return -EINVAL;
3562
3563 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3564
8b60b078
LR		 3565 if (info->attrs[NL80211_ATTR_DFS_REGION])
3566 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3567
b2e1b302
LR		 3568 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3569 rem_reg_rules) {
3570 num_rules++;
3571 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3572 return -EINVAL;
b2e1b302
LR		 3573 }
3574
61405e97
LR		 3575 mutex_lock(&cfg80211_mutex);
3576
d0e18f83
LR		 3577 if (!reg_is_valid_request(alpha2)) {
3578 r = -EINVAL;
3579 goto bad_reg;
3580 }
b2e1b302
LR		 3581
3582 size_of_regd = sizeof(struct ieee80211_regdomain) +
3583 (num_rules * sizeof(struct ieee80211_reg_rule));
3584
3585 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3586 if (!rd) {
3587 r = -ENOMEM;
3588 goto bad_reg;
3589 }
b2e1b302
LR		 3590
3591 rd->n_reg_rules = num_rules;
3592 rd->alpha2[0] = alpha2[0];
3593 rd->alpha2[1] = alpha2[1];
3594
8b60b078
LR		 3595 /*
3596 * Disable DFS master mode if the DFS region was
3597 * not supported or known on this kernel.
3598 */
3599 if (reg_supported_dfs_region(dfs_region))
3600 rd->dfs_region = dfs_region;
3601
b2e1b302
LR		 3602 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3603 rem_reg_rules) {
3604 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3605 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3606 reg_rule_policy);
3607 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3608 if (r)
3609 goto bad_reg;
3610
3611 rule_idx++;
3612
d0e18f83
LR		 3613 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3614 r = -EINVAL;
b2e1b302 3615 goto bad_reg;
d0e18f83 3616 }
b2e1b302
LR		 3617 }
3618
3619 BUG_ON(rule_idx != num_rules);
3620
b2e1b302 3621 r = set_regdom(rd);
61405e97 3622
a1794390 3623 mutex_unlock(&cfg80211_mutex);
d0e18f83 3624
b2e1b302
LR		 3625 return r;
3626
d2372b31 3627 bad_reg:
61405e97 3628 mutex_unlock(&cfg80211_mutex);
b2e1b302 3629 kfree(rd);
d0e18f83 3630 return r;
b2e1b302
LR		 3631}
3632
83f5e2cf
JB		 3633static int validate_scan_freqs(struct nlattr *freqs)
3634{
3635 struct nlattr *attr1, *attr2;
3636 int n_channels = 0, tmp1, tmp2;
3637
3638 nla_for_each_nested(attr1, freqs, tmp1) {
3639 n_channels++;
3640 /*
3641 * Some hardware has a limited channel list for
3642 * scanning, and it is pretty much nonsensical
3643 * to scan for a channel twice, so disallow that
3644 * and don't require drivers to check that the
3645 * channel list they get isn't longer than what
3646 * they can scan, as long as they can scan all
3647 * the channels they registered at once.
3648 */
3649 nla_for_each_nested(attr2, freqs, tmp2)
3650 if (attr1 != attr2 &&
3651 nla_get_u32(attr1) == nla_get_u32(attr2))
3652 return 0;
3653 }
3654
3655 return n_channels;
3656}
3657
2a519311
JB		 3658static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3659{
4c476991
JB		 3660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3661 struct net_device *dev = info->user_ptr[1];
2a519311 3662 struct cfg80211_scan_request *request;
2a519311
JB		 3663 struct nlattr *attr;
3664 struct wiphy *wiphy;
83f5e2cf 3665 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3666 size_t ie_len;
2a519311 3667
f4a11bb0
JB		 3668 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3669 return -EINVAL;
3670
79c97e97 3671 wiphy = &rdev->wiphy;
2a519311 3672
4c476991
JB		 3673 if (!rdev->ops->scan)
3674 return -EOPNOTSUPP;
2a519311 3675
4c476991
JB		 3676 if (rdev->scan_req)
3677 return -EBUSY;
2a519311
JB		 3678
3679 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3680 n_channels = validate_scan_freqs(
3681 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3682 if (!n_channels)
3683 return -EINVAL;
2a519311 3684 } else {
34850ab2 3685 enum ieee80211_band band;
83f5e2cf
JB		 3686 n_channels = 0;
3687
2a519311
JB		 3688 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3689 if (wiphy->bands[band])
3690 n_channels += wiphy->bands[band]->n_channels;
3691 }
3692
3693 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3694 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3695 n_ssids++;
3696
4c476991
JB		 3697 if (n_ssids > wiphy->max_scan_ssids)
3698 return -EINVAL;
2a519311 3699
70692ad2
JM		 3700 if (info->attrs[NL80211_ATTR_IE])
3701 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3702 else
3703 ie_len = 0;
3704
4c476991
JB		 3705 if (ie_len > wiphy->max_scan_ie_len)
3706 return -EINVAL;
18a83659 3707
2a519311 3708 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3709 + sizeof(*request->ssids) * n_ssids
3710 + sizeof(*request->channels) * n_channels
70692ad2 3711 + ie_len, GFP_KERNEL);
4c476991
JB		 3712 if (!request)
3713 return -ENOMEM;
2a519311 3714
2a519311 3715 if (n_ssids)
5ba63533 3716 request->ssids = (void *)&request->channels[n_channels];
2a519311 3717 request->n_ssids = n_ssids;
70692ad2
JM		 3718 if (ie_len) {
3719 if (request->ssids)
3720 request->ie = (void *)(request->ssids + n_ssids);
3721 else
3722 request->ie = (void *)(request->channels + n_channels);
3723 }
2a519311 3724
584991dc 3725 i = 0;
2a519311
JB		 3726 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3727 /* user specified, bail out if channel not found */
2a519311 3728 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3729 struct ieee80211_channel *chan;
3730
3731 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3732
3733 if (!chan) {
2a519311
JB		 3734 err = -EINVAL;
3735 goto out_free;
3736 }
584991dc
JB		 3737
3738 /* ignore disabled channels */
3739 if (chan->flags & IEEE80211_CHAN_DISABLED)
3740 continue;
3741
3742 request->channels[i] = chan;
2a519311
JB		 3743 i++;
3744 }
3745 } else {
34850ab2
JB		 3746 enum ieee80211_band band;
3747
2a519311 3748 /* all channels */
2a519311
JB		 3749 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3750 int j;
3751 if (!wiphy->bands[band])
3752 continue;
3753 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3754 struct ieee80211_channel *chan;
3755
3756 chan = &wiphy->bands[band]->channels[j];
3757
3758 if (chan->flags & IEEE80211_CHAN_DISABLED)
3759 continue;
3760
3761 request->channels[i] = chan;
2a519311
JB		 3762 i++;
3763 }
3764 }
3765 }
3766
584991dc
JB		 3767 if (!i) {
3768 err = -EINVAL;
3769 goto out_free;
3770 }
3771
3772 request->n_channels = i;
3773
2a519311
JB		 3774 i = 0;
3775 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3776 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3777 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3778 err = -EINVAL;
3779 goto out_free;
3780 }
57a27e1d 3781 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3782 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3783 i++;
3784 }
3785 }
3786
70692ad2
JM		 3787 if (info->attrs[NL80211_ATTR_IE]) {
3788 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3789 memcpy((void *)request->ie,
3790 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3791 request->ie_len);
3792 }
3793
34850ab2 3794 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3795 if (wiphy->bands[i])
3796 request->rates[i] =
3797 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3798
3799 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3800 nla_for_each_nested(attr,
3801 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3802 tmp) {
3803 enum ieee80211_band band = nla_type(attr);
3804
84404623 3805 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3806 err = -EINVAL;
3807 goto out_free;
3808 }
3809 err = ieee80211_get_ratemask(wiphy->bands[band],
3810 nla_data(attr),
3811 nla_len(attr),
3812 &request->rates[band]);
3813 if (err)
3814 goto out_free;
3815 }
3816 }
3817
e9f935e3
RM		 3818 request->no_cck =
3819 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3820
463d0183 3821 request->dev = dev;
79c97e97 3822 request->wiphy = &rdev->wiphy;
2a519311 3823
79c97e97
JB		 3824 rdev->scan_req = request;
3825 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3826
463d0183 3827 if (!err) {
79c97e97 3828 nl80211_send_scan_start(rdev, dev);
463d0183 3829 dev_hold(dev);
4c476991 3830 } else {
2a519311 3831 out_free:
79c97e97 3832 rdev->scan_req = NULL;
2a519311
JB		 3833 kfree(request);
3834 }
3b85875a 3835
2a519311
JB		 3836 return err;
3837}
3838
807f8a8c
LC		 3839static int nl80211_start_sched_scan(struct sk_buff *skb,
3840 struct genl_info *info)
3841{
3842 struct cfg80211_sched_scan_request *request;
3843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3844 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3845 struct nlattr *attr;
3846 struct wiphy *wiphy;
a1f1c21c 3847 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3848 u32 interval;
807f8a8c
LC		 3849 enum ieee80211_band band;
3850 size_t ie_len;
a1f1c21c 3851 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3852
3853 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3854 !rdev->ops->sched_scan_start)
3855 return -EOPNOTSUPP;
3856
3857 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3858 return -EINVAL;
3859
bbe6ad6d
LC		 3860 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3861 return -EINVAL;
3862
3863 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3864 if (interval == 0)
3865 return -EINVAL;
3866
807f8a8c
LC		 3867 wiphy = &rdev->wiphy;
3868
3869 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3870 n_channels = validate_scan_freqs(
3871 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3872 if (!n_channels)
3873 return -EINVAL;
3874 } else {
3875 n_channels = 0;
3876
3877 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3878 if (wiphy->bands[band])
3879 n_channels += wiphy->bands[band]->n_channels;
3880 }
3881
3882 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3883 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3884 tmp)
3885 n_ssids++;
3886
93b6aa69 3887 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3888 return -EINVAL;
3889
a1f1c21c
LC		 3890 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3891 nla_for_each_nested(attr,
3892 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3893 tmp)
3894 n_match_sets++;
3895
3896 if (n_match_sets > wiphy->max_match_sets)
3897 return -EINVAL;
3898
807f8a8c
LC		 3899 if (info->attrs[NL80211_ATTR_IE])
3900 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3901 else
3902 ie_len = 0;
3903
5a865bad 3904 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3905 return -EINVAL;
3906
c10841ca
LC		 3907 mutex_lock(&rdev->sched_scan_mtx);
3908
3909 if (rdev->sched_scan_req) {
3910 err = -EINPROGRESS;
3911 goto out;
3912 }
3913
807f8a8c 3914 request = kzalloc(sizeof(*request)
a2cd43c5 3915 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3916 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3917 + sizeof(*request->channels) * n_channels
807f8a8c 3918 + ie_len, GFP_KERNEL);
c10841ca
LC		 3919 if (!request) {
3920 err = -ENOMEM;
3921 goto out;
3922 }
807f8a8c
LC		 3923
3924 if (n_ssids)
3925 request->ssids = (void *)&request->channels[n_channels];
3926 request->n_ssids = n_ssids;
3927 if (ie_len) {
3928 if (request->ssids)
3929 request->ie = (void *)(request->ssids + n_ssids);
3930 else
3931 request->ie = (void *)(request->channels + n_channels);
3932 }
3933
a1f1c21c
LC		 3934 if (n_match_sets) {
3935 if (request->ie)
3936 request->match_sets = (void *)(request->ie + ie_len);
3937 else if (request->ssids)
3938 request->match_sets =
3939 (void *)(request->ssids + n_ssids);
3940 else
3941 request->match_sets =
3942 (void *)(request->channels + n_channels);
3943 }
3944 request->n_match_sets = n_match_sets;
3945
807f8a8c
LC		 3946 i = 0;
3947 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3948 /* user specified, bail out if channel not found */
3949 nla_for_each_nested(attr,
3950 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3951 tmp) {
3952 struct ieee80211_channel *chan;
3953
3954 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3955
3956 if (!chan) {
3957 err = -EINVAL;
3958 goto out_free;
3959 }
3960
3961 /* ignore disabled channels */
3962 if (chan->flags & IEEE80211_CHAN_DISABLED)
3963 continue;
3964
3965 request->channels[i] = chan;
3966 i++;
3967 }
3968 } else {
3969 /* all channels */
3970 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3971 int j;
3972 if (!wiphy->bands[band])
3973 continue;
3974 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3975 struct ieee80211_channel *chan;
3976
3977 chan = &wiphy->bands[band]->channels[j];
3978
3979 if (chan->flags & IEEE80211_CHAN_DISABLED)
3980 continue;
3981
3982 request->channels[i] = chan;
3983 i++;
3984 }
3985 }
3986 }
3987
3988 if (!i) {
3989 err = -EINVAL;
3990 goto out_free;
3991 }
3992
3993 request->n_channels = i;
3994
3995 i = 0;
3996 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3997 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3998 tmp) {
57a27e1d 3999 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 4000 err = -EINVAL;
4001 goto out_free;
4002 }
57a27e1d 4003 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 4004 memcpy(request->ssids[i].ssid, nla_data(attr),
4005 nla_len(attr));
807f8a8c
LC		 4006 i++;
4007 }
4008 }
4009
a1f1c21c
LC		 4010 i = 0;
4011 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4012 nla_for_each_nested(attr,
4013 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4014 tmp) {
4015 struct nlattr *ssid;
4016
4017 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4018 nla_data(attr), nla_len(attr),
4019 nl80211_match_policy);
4020 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
4021 if (ssid) {
4022 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4023 err = -EINVAL;
4024 goto out_free;
4025 }
4026 memcpy(request->match_sets[i].ssid.ssid,
4027 nla_data(ssid), nla_len(ssid));
4028 request->match_sets[i].ssid.ssid_len =
4029 nla_len(ssid);
4030 }
4031 i++;
4032 }
4033 }
4034
807f8a8c
LC		 4035 if (info->attrs[NL80211_ATTR_IE]) {
4036 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4037 memcpy((void *)request->ie,
4038 nla_data(info->attrs[NL80211_ATTR_IE]),
4039 request->ie_len);
4040 }
4041
4042 request->dev = dev;
4043 request->wiphy = &rdev->wiphy;
bbe6ad6d 4044 request->interval = interval;
807f8a8c
LC		 4045
4046 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4047 if (!err) {
4048 rdev->sched_scan_req = request;
4049 nl80211_send_sched_scan(rdev, dev,
4050 NL80211_CMD_START_SCHED_SCAN);
4051 goto out;
4052 }
4053
4054out_free:
4055 kfree(request);
4056out:
c10841ca 4057 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 4058 return err;
4059}
4060
4061static int nl80211_stop_sched_scan(struct sk_buff *skb,
4062 struct genl_info *info)
4063{
4064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4065 int err;
807f8a8c
LC		 4066
4067 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4068 !rdev->ops->sched_scan_stop)
4069 return -EOPNOTSUPP;
4070
c10841ca
LC		 4071 mutex_lock(&rdev->sched_scan_mtx);
4072 err = __cfg80211_stop_sched_scan(rdev, false);
4073 mutex_unlock(&rdev->sched_scan_mtx);
4074
4075 return err;
807f8a8c
LC		 4076}
4077
9720bb3a
JB		 4078static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4079 u32 seq, int flags,
2a519311 4080 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4081 struct wireless_dev *wdev,
4082 struct cfg80211_internal_bss *intbss)
2a519311 4083{
48ab905d 4084 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4085 void *hdr;
4086 struct nlattr *bss;
48ab905d
JB		 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);
48ab905d
JB		 4139 break;
4140 case NL80211_IFTYPE_ADHOC:
4141 if (intbss == wdev->current_bss)
4142 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4143 NL80211_BSS_STATUS_IBSS_JOINED);
4144 break;
4145 default:
4146 break;
4147 }
4148
2a519311
JB		 4149 nla_nest_end(msg, bss);
4150
4151 return genlmsg_end(msg, hdr);
4152
4153 nla_put_failure:
4154 genlmsg_cancel(msg, hdr);
4155 return -EMSGSIZE;
4156}
4157
4158static int nl80211_dump_scan(struct sk_buff *skb,
4159 struct netlink_callback *cb)
4160{
48ab905d
JB		 4161 struct cfg80211_registered_device *rdev;
4162 struct net_device *dev;
2a519311 4163 struct cfg80211_internal_bss *scan;
48ab905d 4164 struct wireless_dev *wdev;
2a519311
JB		 4165 int start = cb->args[1], idx = 0;
4166 int err;
4167
67748893
JB		 4168 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4169 if (err)
4170 return err;
2a519311 4171
48ab905d 4172 wdev = dev->ieee80211_ptr;
2a519311 4173
48ab905d
JB		 4174 wdev_lock(wdev);
4175 spin_lock_bh(&rdev->bss_lock);
4176 cfg80211_bss_expire(rdev);
4177
9720bb3a
JB		 4178 cb->seq = rdev->bss_generation;
4179
48ab905d 4180 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4181 if (++idx <= start)
4182 continue;
9720bb3a 4183 if (nl80211_send_bss(skb, cb,
2a519311 4184 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4185 rdev, wdev, scan) < 0) {
2a519311 4186 idx--;
67748893 4187 break;
2a519311
JB		 4188 }
4189 }
4190
48ab905d
JB		 4191 spin_unlock_bh(&rdev->bss_lock);
4192 wdev_unlock(wdev);
2a519311
JB		 4193
4194 cb->args[1] = idx;
67748893 4195 nl80211_finish_netdev_dump(rdev);
2a519311 4196
67748893 4197 return skb->len;
2a519311
JB		 4198}
4199
61fa713c
HS		 4200static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4201 int flags, struct net_device *dev,
4202 struct survey_info *survey)
4203{
4204 void *hdr;
4205 struct nlattr *infoattr;
4206
61fa713c
HS		 4207 hdr = nl80211hdr_put(msg, pid, seq, flags,
4208 NL80211_CMD_NEW_SURVEY_RESULTS);
4209 if (!hdr)
4210 return -ENOMEM;
4211
4212 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4213
4214 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4215 if (!infoattr)
4216 goto nla_put_failure;
4217
4218 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4219 survey->channel->center_freq);
4220 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4221 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4222 survey->noise);
17e5a808
FF		 4223 if (survey->filled & SURVEY_INFO_IN_USE)
4224 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4225 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4226 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4227 survey->channel_time);
4228 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4229 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4230 survey->channel_time_busy);
4231 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4232 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4233 survey->channel_time_ext_busy);
4234 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4235 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4236 survey->channel_time_rx);
4237 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4238 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4239 survey->channel_time_tx);
61fa713c
HS		 4240
4241 nla_nest_end(msg, infoattr);
4242
4243 return genlmsg_end(msg, hdr);
4244
4245 nla_put_failure:
4246 genlmsg_cancel(msg, hdr);
4247 return -EMSGSIZE;
4248}
4249
4250static int nl80211_dump_survey(struct sk_buff *skb,
4251 struct netlink_callback *cb)
4252{
4253 struct survey_info survey;
4254 struct cfg80211_registered_device *dev;
4255 struct net_device *netdev;
61fa713c
HS		 4256 int survey_idx = cb->args[1];
4257 int res;
4258
67748893
JB		 4259 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4260 if (res)
4261 return res;
61fa713c
HS		 4262
4263 if (!dev->ops->dump_survey) {
4264 res = -EOPNOTSUPP;
4265 goto out_err;
4266 }
4267
4268 while (1) {
180cdc79
LR		 4269 struct ieee80211_channel *chan;
4270
61fa713c
HS		 4271 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4272 &survey);
4273 if (res == -ENOENT)
4274 break;
4275 if (res)
4276 goto out_err;
4277
180cdc79
LR		 4278 /* Survey without a channel doesn't make sense */
4279 if (!survey.channel) {
4280 res = -EINVAL;
4281 goto out;
4282 }
4283
4284 chan = ieee80211_get_channel(&dev->wiphy,
4285 survey.channel->center_freq);
4286 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4287 survey_idx++;
4288 continue;
4289 }
4290
61fa713c
HS		 4291 if (nl80211_send_survey(skb,
4292 NETLINK_CB(cb->skb).pid,
4293 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4294 netdev,
4295 &survey) < 0)
4296 goto out;
4297 survey_idx++;
4298 }
4299
4300 out:
4301 cb->args[1] = survey_idx;
4302 res = skb->len;
4303 out_err:
67748893 4304 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4305 return res;
4306}
4307
255e737e
JM		 4308static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4309{
b23aa676
SO		 4310 return auth_type <= NL80211_AUTHTYPE_MAX;
4311}
4312
4313static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4314{
4315 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4316 NL80211_WPA_VERSION_2));
4317}
4318
636a5d36
JM		 4319static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4320{
4c476991
JB		 4321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4322 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4323 struct ieee80211_channel *chan;
4324 const u8 *bssid, *ssid, *ie = NULL;
4325 int err, ssid_len, ie_len = 0;
4326 enum nl80211_auth_type auth_type;
fffd0934 4327 struct key_parse key;
d5cdfacb 4328 bool local_state_change;
636a5d36 4329
f4a11bb0
JB		 4330 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4331 return -EINVAL;
4332
4333 if (!info->attrs[NL80211_ATTR_MAC])
4334 return -EINVAL;
4335
1778092e
JM		 4336 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4337 return -EINVAL;
4338
19957bb3
JB		 4339 if (!info->attrs[NL80211_ATTR_SSID])
4340 return -EINVAL;
4341
4342 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4343 return -EINVAL;
4344
fffd0934
JB		 4345 err = nl80211_parse_key(info, &key);
4346 if (err)
4347 return err;
4348
4349 if (key.idx >= 0) {
e31b8213
JB		 4350 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4351 return -EINVAL;
fffd0934
JB		 4352 if (!key.p.key || !key.p.key_len)
4353 return -EINVAL;
4354 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4355 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4356 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4357 key.p.key_len != WLAN_KEY_LEN_WEP104))
4358 return -EINVAL;
4359 if (key.idx > 4)
4360 return -EINVAL;
4361 } else {
4362 key.p.key_len = 0;
4363 key.p.key = NULL;
4364 }
4365
afea0b7a
JB		 4366 if (key.idx >= 0) {
4367 int i;
4368 bool ok = false;
4369 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4370 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4371 ok = true;
4372 break;
4373 }
4374 }
4c476991
JB		 4375 if (!ok)
4376 return -EINVAL;
afea0b7a
JB		 4377 }
4378
4c476991
JB		 4379 if (!rdev->ops->auth)
4380 return -EOPNOTSUPP;
636a5d36 4381
074ac8df 4382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4383 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4384 return -EOPNOTSUPP;
eec60b03 4385
19957bb3 4386 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4387 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4388 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4389 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4390 return -EINVAL;
636a5d36 4391
19957bb3
JB		 4392 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4393 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4394
4395 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4396 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4397 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4398 }
4399
19957bb3 4400 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4401 if (!nl80211_valid_auth_type(auth_type))
4402 return -EINVAL;
636a5d36 4403
d5cdfacb
JM		 4404 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4405
95de817b
JB		 4406 /*
4407 * Since we no longer track auth state, ignore
4408 * requests to only change local state.
4409 */
4410 if (local_state_change)
4411 return 0;
4412
4c476991
JB		 4413 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4414 ssid, ssid_len, ie, ie_len,
95de817b 4415 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 4416}
4417
c0692b8f
JB		 4418static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4419 struct genl_info *info,
3dc27d25
JB		 4420 struct cfg80211_crypto_settings *settings,
4421 int cipher_limit)
b23aa676 4422{
c0b2bbd8
JB		 4423 memset(settings, 0, sizeof(*settings));
4424
b23aa676
SO		 4425 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4426
c0692b8f
JB		 4427 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4428 u16 proto;
4429 proto = nla_get_u16(
4430 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4431 settings->control_port_ethertype = cpu_to_be16(proto);
4432 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4433 proto != ETH_P_PAE)
4434 return -EINVAL;
4435 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4436 settings->control_port_no_encrypt = true;
4437 } else
4438 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4439
b23aa676
SO		 4440 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4441 void *data;
4442 int len, i;
4443
4444 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4445 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4446 settings->n_ciphers_pairwise = len / sizeof(u32);
4447
4448 if (len % sizeof(u32))
4449 return -EINVAL;
4450
3dc27d25 4451 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4452 return -EINVAL;
4453
4454 memcpy(settings->ciphers_pairwise, data, len);
4455
4456 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4457 if (!cfg80211_supported_cipher_suite(
4458 &rdev->wiphy,
b23aa676
SO		 4459 settings->ciphers_pairwise[i]))
4460 return -EINVAL;
4461 }
4462
4463 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4464 settings->cipher_group =
4465 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4466 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4467 settings->cipher_group))
b23aa676
SO		 4468 return -EINVAL;
4469 }
4470
4471 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4472 settings->wpa_versions =
4473 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4474 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4475 return -EINVAL;
4476 }
4477
4478 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4479 void *data;
6d30240e 4480 int len;
b23aa676
SO		 4481
4482 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4483 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4484 settings->n_akm_suites = len / sizeof(u32);
4485
4486 if (len % sizeof(u32))
4487 return -EINVAL;
4488
1b9ca027
JM		 4489 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4490 return -EINVAL;
4491
b23aa676 4492 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4493 }
4494
4495 return 0;
4496}
4497
636a5d36
JM		 4498static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4499{
4c476991
JB		 4500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4501 struct net_device *dev = info->user_ptr[1];
19957bb3 4502 struct cfg80211_crypto_settings crypto;
f444de05 4503 struct ieee80211_channel *chan;
3e5d7649 4504 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4505 int err, ssid_len, ie_len = 0;
4506 bool use_mfp = false;
7e7c8926
BG		 4507 u32 flags = 0;
4508 struct ieee80211_ht_cap *ht_capa = NULL;
4509 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4510
f4a11bb0
JB		 4511 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4512 return -EINVAL;
4513
4514 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4515 !info->attrs[NL80211_ATTR_SSID] ||
4516 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4517 return -EINVAL;
4518
4c476991
JB		 4519 if (!rdev->ops->assoc)
4520 return -EOPNOTSUPP;
636a5d36 4521
074ac8df 4522 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4523 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4524 return -EOPNOTSUPP;
eec60b03 4525
19957bb3 4526 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4527
19957bb3
JB		 4528 chan = ieee80211_get_channel(&rdev->wiphy,
4529 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4530 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4531 return -EINVAL;
636a5d36 4532
19957bb3
JB		 4533 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4534 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4535
4536 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4537 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4538 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4539 }
4540
dc6382ce 4541 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4542 enum nl80211_mfp mfp =
dc6382ce 4543 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4544 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4545 use_mfp = true;
4c476991
JB		 4546 else if (mfp != NL80211_MFP_NO)
4547 return -EINVAL;
dc6382ce
JM		 4548 }
4549
3e5d7649
JB		 4550 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4551 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4552
7e7c8926
BG		 4553 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4554 flags |= ASSOC_REQ_DISABLE_HT;
4555
4556 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4557 ht_capa_mask =
4558 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4559
4560 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4561 if (!ht_capa_mask)
4562 return -EINVAL;
4563 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4564 }
4565
c0692b8f 4566 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4567 if (!err)
3e5d7649
JB		 4568 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4569 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4570 &crypto, flags, ht_capa,
4571 ht_capa_mask);
636a5d36 4572
636a5d36
JM		 4573 return err;
4574}
4575
4576static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4577{
4c476991
JB		 4578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4579 struct net_device *dev = info->user_ptr[1];
19957bb3 4580 const u8 *ie = NULL, *bssid;
4c476991 4581 int ie_len = 0;
19957bb3 4582 u16 reason_code;
d5cdfacb 4583 bool local_state_change;
636a5d36 4584
f4a11bb0
JB		 4585 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4586 return -EINVAL;
4587
4588 if (!info->attrs[NL80211_ATTR_MAC])
4589 return -EINVAL;
4590
4591 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4592 return -EINVAL;
4593
4c476991
JB		 4594 if (!rdev->ops->deauth)
4595 return -EOPNOTSUPP;
636a5d36 4596
074ac8df 4597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4598 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4599 return -EOPNOTSUPP;
eec60b03 4600
19957bb3 4601 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4602
19957bb3
JB		 4603 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4604 if (reason_code == 0) {
f4a11bb0 4605 /* Reason Code 0 is reserved */
4c476991 4606 return -EINVAL;
255e737e 4607 }
636a5d36
JM		 4608
4609 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4610 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4611 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4612 }
4613
d5cdfacb
JM		 4614 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4615
4c476991
JB		 4616 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4617 local_state_change);
636a5d36
JM		 4618}
4619
4620static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4621{
4c476991
JB		 4622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4623 struct net_device *dev = info->user_ptr[1];
19957bb3 4624 const u8 *ie = NULL, *bssid;
4c476991 4625 int ie_len = 0;
19957bb3 4626 u16 reason_code;
d5cdfacb 4627 bool local_state_change;
636a5d36 4628
f4a11bb0
JB		 4629 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4630 return -EINVAL;
4631
4632 if (!info->attrs[NL80211_ATTR_MAC])
4633 return -EINVAL;
4634
4635 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4636 return -EINVAL;
4637
4c476991
JB		 4638 if (!rdev->ops->disassoc)
4639 return -EOPNOTSUPP;
636a5d36 4640
074ac8df 4641 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4642 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4643 return -EOPNOTSUPP;
eec60b03 4644
19957bb3 4645 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4646
19957bb3
JB		 4647 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4648 if (reason_code == 0) {
f4a11bb0 4649 /* Reason Code 0 is reserved */
4c476991 4650 return -EINVAL;
255e737e 4651 }
636a5d36
JM		 4652
4653 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4654 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4655 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4656 }
4657
d5cdfacb
JM		 4658 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4659
4c476991
JB		 4660 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4661 local_state_change);
636a5d36
JM		 4662}
4663
dd5b4cc7
FF		 4664static bool
4665nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4666 int mcast_rate[IEEE80211_NUM_BANDS],
4667 int rateval)
4668{
4669 struct wiphy *wiphy = &rdev->wiphy;
4670 bool found = false;
4671 int band, i;
4672
4673 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4674 struct ieee80211_supported_band *sband;
4675
4676 sband = wiphy->bands[band];
4677 if (!sband)
4678 continue;
4679
4680 for (i = 0; i < sband->n_bitrates; i++) {
4681 if (sband->bitrates[i].bitrate == rateval) {
4682 mcast_rate[band] = i + 1;
4683 found = true;
4684 break;
4685 }
4686 }
4687 }
4688
4689 return found;
4690}
4691
04a773ad
JB		 4692static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4693{
4c476991
JB		 4694 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4695 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4696 struct cfg80211_ibss_params ibss;
4697 struct wiphy *wiphy;
fffd0934 4698 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4699 int err;
4700
8e30bc55
JB		 4701 memset(&ibss, 0, sizeof(ibss));
4702
04a773ad
JB		 4703 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4704 return -EINVAL;
4705
4706 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4707 !info->attrs[NL80211_ATTR_SSID] ||
4708 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4709 return -EINVAL;
4710
8e30bc55
JB		 4711 ibss.beacon_interval = 100;
4712
4713 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4714 ibss.beacon_interval =
4715 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4716 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4717 return -EINVAL;
4718 }
4719
4c476991
JB		 4720 if (!rdev->ops->join_ibss)
4721 return -EOPNOTSUPP;
04a773ad 4722
4c476991
JB		 4723 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4724 return -EOPNOTSUPP;
04a773ad 4725
79c97e97 4726 wiphy = &rdev->wiphy;
04a773ad 4727
39193498 4728 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4729 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4730
4731 if (!is_valid_ether_addr(ibss.bssid))
4732 return -EINVAL;
4733 }
04a773ad
JB		 4734 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4735 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4736
4737 if (info->attrs[NL80211_ATTR_IE]) {
4738 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4739 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4740 }
4741
54858ee5
AS		 4742 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4743 enum nl80211_channel_type channel_type;
4744
4745 channel_type = nla_get_u32(
4746 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4747 if (channel_type != NL80211_CHAN_NO_HT &&
4748 channel_type != NL80211_CHAN_HT20 &&
4749 channel_type != NL80211_CHAN_HT40MINUS &&
4750 channel_type != NL80211_CHAN_HT40PLUS)
4751 return -EINVAL;
4752
4753 if (channel_type != NL80211_CHAN_NO_HT &&
4754 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4755 return -EINVAL;
4756
4757 ibss.channel_type = channel_type;
4758 } else {
4759 ibss.channel_type = NL80211_CHAN_NO_HT;
4760 }
4761
4762 ibss.channel = rdev_freq_to_chan(rdev,
4763 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4764 ibss.channel_type);
04a773ad
JB		 4765 if (!ibss.channel ||
4766 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4767 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4768 return -EINVAL;
04a773ad 4769
54858ee5
AS		 4770 /* Both channels should be able to initiate communication */
4771 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4772 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4773 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4774 ibss.channel_type))
4775 return -EINVAL;
4776
04a773ad 4777 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4778 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4779
fbd2c8dc
TP		 4780 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4781 u8 *rates =
4782 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4783 int n_rates =
4784 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4785 struct ieee80211_supported_band *sband =
4786 wiphy->bands[ibss.channel->band];
fbd2c8dc 4787
34850ab2
JB		 4788 err = ieee80211_get_ratemask(sband, rates, n_rates,
4789 &ibss.basic_rates);
4790 if (err)
4791 return err;
fbd2c8dc 4792 }
dd5b4cc7
FF		 4793
4794 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4795 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4796 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4797 return -EINVAL;
fbd2c8dc 4798
4c476991
JB		 4799 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4800 connkeys = nl80211_parse_connkeys(rdev,
4801 info->attrs[NL80211_ATTR_KEYS]);
4802 if (IS_ERR(connkeys))
4803 return PTR_ERR(connkeys);
4804 }
04a773ad 4805
267335d6
AQ		 4806 ibss.control_port =
4807 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
4808
4c476991 4809 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4810 if (err)
4811 kfree(connkeys);
04a773ad
JB		 4812 return err;
4813}
4814
4815static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4816{
4c476991
JB		 4817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4818 struct net_device *dev = info->user_ptr[1];
04a773ad 4819
4c476991
JB		 4820 if (!rdev->ops->leave_ibss)
4821 return -EOPNOTSUPP;
04a773ad 4822
4c476991
JB		 4823 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4824 return -EOPNOTSUPP;
04a773ad 4825
4c476991 4826 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4827}
4828
aff89a9b
JB		 4829#ifdef CONFIG_NL80211_TESTMODE
4830static struct genl_multicast_group nl80211_testmode_mcgrp = {
4831 .name = "testmode",
4832};
4833
4834static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4835{
4c476991 4836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4837 int err;
4838
4839 if (!info->attrs[NL80211_ATTR_TESTDATA])
4840 return -EINVAL;
4841
aff89a9b
JB		 4842 err = -EOPNOTSUPP;
4843 if (rdev->ops->testmode_cmd) {
4844 rdev->testmode_info = info;
4845 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4846 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4847 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4848 rdev->testmode_info = NULL;
4849 }
4850
aff89a9b
JB		 4851 return err;
4852}
4853
71063f0e
WYG		 4854static int nl80211_testmode_dump(struct sk_buff *skb,
4855 struct netlink_callback *cb)
4856{
00918d33 4857 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4858 int err;
4859 long phy_idx;
4860 void *data = NULL;
4861 int data_len = 0;
4862
4863 if (cb->args[0]) {
4864 /*
4865 * 0 is a valid index, but not valid for args[0],
4866 * so we need to offset by 1.
4867 */
4868 phy_idx = cb->args[0] - 1;
4869 } else {
4870 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4871 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4872 nl80211_policy);
4873 if (err)
4874 return err;
00918d33
JB		 4875 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4876 phy_idx = nla_get_u32(
4877 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4878 } else {
4879 struct net_device *netdev;
4880
4881 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4882 nl80211_fam.attrbuf,
4883 &rdev, &netdev);
4884 if (err)
4885 return err;
4886 dev_put(netdev);
4887 phy_idx = rdev->wiphy_idx;
4888 cfg80211_unlock_rdev(rdev);
4889 }
71063f0e
WYG		 4890 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4891 cb->args[1] =
4892 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4893 }
4894
4895 if (cb->args[1]) {
4896 data = nla_data((void *)cb->args[1]);
4897 data_len = nla_len((void *)cb->args[1]);
4898 }
4899
4900 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4901 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4902 if (!rdev) {
71063f0e
WYG		 4903 mutex_unlock(&cfg80211_mutex);
4904 return -ENOENT;
4905 }
00918d33 4906 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4907 mutex_unlock(&cfg80211_mutex);
4908
00918d33 4909 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4910 err = -EOPNOTSUPP;
4911 goto out_err;
4912 }
4913
4914 while (1) {
4915 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4916 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4917 NL80211_CMD_TESTMODE);
4918 struct nlattr *tmdata;
4919
00918d33 4920 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4921 genlmsg_cancel(skb, hdr);
4922 break;
4923 }
4924
4925 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4926 if (!tmdata) {
4927 genlmsg_cancel(skb, hdr);
4928 break;
4929 }
00918d33
JB		 4930 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4931 data, data_len);
71063f0e
WYG		 4932 nla_nest_end(skb, tmdata);
4933
4934 if (err == -ENOBUFS || err == -ENOENT) {
4935 genlmsg_cancel(skb, hdr);
4936 break;
4937 } else if (err) {
4938 genlmsg_cancel(skb, hdr);
4939 goto out_err;
4940 }
4941
4942 genlmsg_end(skb, hdr);
4943 }
4944
4945 err = skb->len;
4946 /* see above */
4947 cb->args[0] = phy_idx + 1;
4948 out_err:
00918d33 4949 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 4950 return err;
4951}
4952
aff89a9b
JB		 4953static struct sk_buff *
4954__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4955 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4956{
4957 struct sk_buff *skb;
4958 void *hdr;
4959 struct nlattr *data;
4960
4961 skb = nlmsg_new(approxlen + 100, gfp);
4962 if (!skb)
4963 return NULL;
4964
4965 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4966 if (!hdr) {
4967 kfree_skb(skb);
4968 return NULL;
4969 }
4970
4971 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4972 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4973
4974 ((void **)skb->cb)[0] = rdev;
4975 ((void **)skb->cb)[1] = hdr;
4976 ((void **)skb->cb)[2] = data;
4977
4978 return skb;
4979
4980 nla_put_failure:
4981 kfree_skb(skb);
4982 return NULL;
4983}
4984
4985struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4986 int approxlen)
4987{
4988 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4989
4990 if (WARN_ON(!rdev->testmode_info))
4991 return NULL;
4992
4993 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4994 rdev->testmode_info->snd_pid,
4995 rdev->testmode_info->snd_seq,
4996 GFP_KERNEL);
4997}
4998EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4999
5000int cfg80211_testmode_reply(struct sk_buff *skb)
5001{
5002 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5003 void *hdr = ((void **)skb->cb)[1];
5004 struct nlattr *data = ((void **)skb->cb)[2];
5005
5006 if (WARN_ON(!rdev->testmode_info)) {
5007 kfree_skb(skb);
5008 return -EINVAL;
5009 }
5010
5011 nla_nest_end(skb, data);
5012 genlmsg_end(skb, hdr);
5013 return genlmsg_reply(skb, rdev->testmode_info);
5014}
5015EXPORT_SYMBOL(cfg80211_testmode_reply);
5016
5017struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5018 int approxlen, gfp_t gfp)
5019{
5020 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5021
5022 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5023}
5024EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5025
5026void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5027{
5028 void *hdr = ((void **)skb->cb)[1];
5029 struct nlattr *data = ((void **)skb->cb)[2];
5030
5031 nla_nest_end(skb, data);
5032 genlmsg_end(skb, hdr);
5033 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5034}
5035EXPORT_SYMBOL(cfg80211_testmode_event);
5036#endif
5037
b23aa676
SO		 5038static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5039{
4c476991
JB		 5040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5041 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5042 struct cfg80211_connect_params connect;
5043 struct wiphy *wiphy;
fffd0934 5044 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 5045 int err;
5046
5047 memset(&connect, 0, sizeof(connect));
5048
5049 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5050 return -EINVAL;
5051
5052 if (!info->attrs[NL80211_ATTR_SSID] ||
5053 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5054 return -EINVAL;
5055
5056 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5057 connect.auth_type =
5058 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5059 if (!nl80211_valid_auth_type(connect.auth_type))
5060 return -EINVAL;
5061 } else
5062 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5063
5064 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5065
c0692b8f 5066 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5067 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5068 if (err)
5069 return err;
b23aa676 5070
074ac8df 5071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5073 return -EOPNOTSUPP;
b23aa676 5074
79c97e97 5075 wiphy = &rdev->wiphy;
b23aa676 5076
b23aa676
SO		 5077 if (info->attrs[NL80211_ATTR_MAC])
5078 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5079 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5080 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5081
5082 if (info->attrs[NL80211_ATTR_IE]) {
5083 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5084 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5085 }
5086
5087 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5088 connect.channel =
5089 ieee80211_get_channel(wiphy,
5090 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5091 if (!connect.channel ||
4c476991
JB		 5092 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5093 return -EINVAL;
b23aa676
SO		 5094 }
5095
fffd0934
JB		 5096 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5097 connkeys = nl80211_parse_connkeys(rdev,
5098 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5099 if (IS_ERR(connkeys))
5100 return PTR_ERR(connkeys);
fffd0934
JB		 5101 }
5102
7e7c8926
BG		 5103 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5104 connect.flags |= ASSOC_REQ_DISABLE_HT;
5105
5106 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5107 memcpy(&connect.ht_capa_mask,
5108 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5109 sizeof(connect.ht_capa_mask));
5110
5111 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5112 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5113 return -EINVAL;
5114 memcpy(&connect.ht_capa,
5115 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5116 sizeof(connect.ht_capa));
5117 }
5118
fffd0934 5119 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5120 if (err)
5121 kfree(connkeys);
b23aa676
SO		 5122 return err;
5123}
5124
5125static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5126{
4c476991
JB		 5127 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5128 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5129 u16 reason;
5130
5131 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5132 reason = WLAN_REASON_DEAUTH_LEAVING;
5133 else
5134 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5135
5136 if (reason == 0)
5137 return -EINVAL;
5138
074ac8df 5139 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5140 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5141 return -EOPNOTSUPP;
b23aa676 5142
4c476991 5143 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5144}
5145
463d0183
JB		 5146static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5147{
4c476991 5148 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5149 struct net *net;
5150 int err;
5151 u32 pid;
5152
5153 if (!info->attrs[NL80211_ATTR_PID])
5154 return -EINVAL;
5155
5156 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5157
463d0183 5158 net = get_net_ns_by_pid(pid);
4c476991
JB		 5159 if (IS_ERR(net))
5160 return PTR_ERR(net);
463d0183
JB		 5161
5162 err = 0;
5163
5164 /* check if anything to do */
4c476991
JB		 5165 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5166 err = cfg80211_switch_netns(rdev, net);
463d0183 5167
463d0183 5168 put_net(net);
463d0183
JB		 5169 return err;
5170}
5171
67fbb16b
SO		 5172static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5173{
4c476991 5174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5175 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5176 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5177 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5178 struct cfg80211_pmksa pmksa;
5179
5180 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5181
5182 if (!info->attrs[NL80211_ATTR_MAC])
5183 return -EINVAL;
5184
5185 if (!info->attrs[NL80211_ATTR_PMKID])
5186 return -EINVAL;
5187
67fbb16b
SO		 5188 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5189 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5190
074ac8df 5191 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5192 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5193 return -EOPNOTSUPP;
67fbb16b
SO		 5194
5195 switch (info->genlhdr->cmd) {
5196 case NL80211_CMD_SET_PMKSA:
5197 rdev_ops = rdev->ops->set_pmksa;
5198 break;
5199 case NL80211_CMD_DEL_PMKSA:
5200 rdev_ops = rdev->ops->del_pmksa;
5201 break;
5202 default:
5203 WARN_ON(1);
5204 break;
5205 }
5206
4c476991
JB		 5207 if (!rdev_ops)
5208 return -EOPNOTSUPP;
67fbb16b 5209
4c476991 5210 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5211}
5212
5213static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5214{
4c476991
JB		 5215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5216 struct net_device *dev = info->user_ptr[1];
67fbb16b 5217
074ac8df 5218 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5219 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5220 return -EOPNOTSUPP;
67fbb16b 5221
4c476991
JB		 5222 if (!rdev->ops->flush_pmksa)
5223 return -EOPNOTSUPP;
67fbb16b 5224
4c476991 5225 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5226}
5227
109086ce
AN		 5228static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5229{
5230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5231 struct net_device *dev = info->user_ptr[1];
5232 u8 action_code, dialog_token;
5233 u16 status_code;
5234 u8 *peer;
5235
5236 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5237 !rdev->ops->tdls_mgmt)
5238 return -EOPNOTSUPP;
5239
5240 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5241 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5242 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5243 !info->attrs[NL80211_ATTR_IE] ||
5244 !info->attrs[NL80211_ATTR_MAC])
5245 return -EINVAL;
5246
5247 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5248 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5249 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5250 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5251
5252 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5253 dialog_token, status_code,
5254 nla_data(info->attrs[NL80211_ATTR_IE]),
5255 nla_len(info->attrs[NL80211_ATTR_IE]));
5256}
5257
5258static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5259{
5260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5261 struct net_device *dev = info->user_ptr[1];
5262 enum nl80211_tdls_operation operation;
5263 u8 *peer;
5264
5265 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5266 !rdev->ops->tdls_oper)
5267 return -EOPNOTSUPP;
5268
5269 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5270 !info->attrs[NL80211_ATTR_MAC])
5271 return -EINVAL;
5272
5273 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5274 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5275
5276 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5277}
5278
9588bbd5
JM		 5279static int nl80211_remain_on_channel(struct sk_buff *skb,
5280 struct genl_info *info)
5281{
4c476991
JB		 5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5283 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5284 struct ieee80211_channel *chan;
5285 struct sk_buff *msg;
5286 void *hdr;
5287 u64 cookie;
5288 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5289 u32 freq, duration;
5290 int err;
5291
5292 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5293 !info->attrs[NL80211_ATTR_DURATION])
5294 return -EINVAL;
5295
5296 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5297
5298 /*
5299 * We should be on that channel for at least one jiffie,
5300 * and more than 5 seconds seems excessive.
5301 */
a293911d
JB		 5302 if (!duration || !msecs_to_jiffies(duration) ||
5303 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5304 return -EINVAL;
5305
7c4ef712
JB		 5306 if (!rdev->ops->remain_on_channel ||
5307 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5308 return -EOPNOTSUPP;
9588bbd5 5309
9588bbd5
JM		 5310 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5311 channel_type = nla_get_u32(
5312 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5313 if (channel_type != NL80211_CHAN_NO_HT &&
5314 channel_type != NL80211_CHAN_HT20 &&
5315 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5316 channel_type != NL80211_CHAN_HT40MINUS)
5317 return -EINVAL;
9588bbd5
JM		 5318 }
5319
5320 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5321 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5322 if (chan == NULL)
5323 return -EINVAL;
9588bbd5
JM		 5324
5325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5326 if (!msg)
5327 return -ENOMEM;
9588bbd5
JM		 5328
5329 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5330 NL80211_CMD_REMAIN_ON_CHANNEL);
5331
5332 if (IS_ERR(hdr)) {
5333 err = PTR_ERR(hdr);
5334 goto free_msg;
5335 }
5336
5337 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5338 channel_type, duration, &cookie);
5339
5340 if (err)
5341 goto free_msg;
5342
5343 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5344
5345 genlmsg_end(msg, hdr);
4c476991
JB		 5346
5347 return genlmsg_reply(msg, info);
9588bbd5
JM		 5348
5349 nla_put_failure:
5350 err = -ENOBUFS;
5351 free_msg:
5352 nlmsg_free(msg);
9588bbd5
JM		 5353 return err;
5354}
5355
5356static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5357 struct genl_info *info)
5358{
4c476991
JB		 5359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5360 struct net_device *dev = info->user_ptr[1];
9588bbd5 5361 u64 cookie;
9588bbd5
JM		 5362
5363 if (!info->attrs[NL80211_ATTR_COOKIE])
5364 return -EINVAL;
5365
4c476991
JB		 5366 if (!rdev->ops->cancel_remain_on_channel)
5367 return -EOPNOTSUPP;
9588bbd5 5368
9588bbd5
JM		 5369 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5370
4c476991 5371 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5372}
5373
13ae75b1
JM		 5374static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5375 u8 *rates, u8 rates_len)
5376{
5377 u8 i;
5378 u32 mask = 0;
5379
5380 for (i = 0; i < rates_len; i++) {
5381 int rate = (rates[i] & 0x7f) * 5;
5382 int ridx;
5383 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5384 struct ieee80211_rate *srate =
5385 &sband->bitrates[ridx];
5386 if (rate == srate->bitrate) {
5387 mask |= 1 << ridx;
5388 break;
5389 }
5390 }
5391 if (ridx == sband->n_bitrates)
5392 return 0; /* rate not found */
5393 }
5394
5395 return mask;
5396}
5397
24db78c0
SW		 5398static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5399 u8 *rates, u8 rates_len,
5400 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5401{
5402 u8 i;
5403
5404 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5405
5406 for (i = 0; i < rates_len; i++) {
5407 int ridx, rbit;
5408
5409 ridx = rates[i] / 8;
5410 rbit = BIT(rates[i] % 8);
5411
5412 /* check validity */
5413 if ((ridx < 0) || (ridx > IEEE80211_HT_MCS_MASK_LEN))
5414 return false;
5415
5416 /* check availability */
5417 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5418 mcs[ridx] |= rbit;
5419 else
5420 return false;
5421 }
5422
5423 return true;
5424}
5425
b54452b0 5426static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5427 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5428 .len = NL80211_MAX_SUPP_RATES },
24db78c0
SW		 5429 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5430 .len = NL80211_MAX_SUPP_HT_RATES },
13ae75b1
JM		 5431};
5432
5433static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5434 struct genl_info *info)
5435{
5436 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5438 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5439 int rem, i;
5440 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5441 struct nlattr *tx_rates;
5442 struct ieee80211_supported_band *sband;
5443
5444 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5445 return -EINVAL;
5446
4c476991
JB		 5447 if (!rdev->ops->set_bitrate_mask)
5448 return -EOPNOTSUPP;
13ae75b1
JM		 5449
5450 memset(&mask, 0, sizeof(mask));
5451 /* Default to all rates enabled */
5452 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5453 sband = rdev->wiphy.bands[i];
5454 mask.control[i].legacy =
5455 sband ? (1 << sband->n_bitrates) - 1 : 0;
24db78c0
SW		 5456 if (sband)
5457 memcpy(mask.control[i].mcs,
5458 sband->ht_cap.mcs.rx_mask,
5459 sizeof(mask.control[i].mcs));
5460 else
5461 memset(mask.control[i].mcs, 0,
5462 sizeof(mask.control[i].mcs));
13ae75b1
JM		 5463 }
5464
5465 /*
5466 * The nested attribute uses enum nl80211_band as the index. This maps
5467 * directly to the enum ieee80211_band values used in cfg80211.
5468 */
24db78c0 5469 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
13ae75b1
JM		 5470 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5471 {
5472 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5473 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5474 return -EINVAL;
13ae75b1 5475 sband = rdev->wiphy.bands[band];
4c476991
JB		 5476 if (sband == NULL)
5477 return -EINVAL;
13ae75b1
JM		 5478 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5479 nla_len(tx_rates), nl80211_txattr_policy);
5480 if (tb[NL80211_TXRATE_LEGACY]) {
5481 mask.control[band].legacy = rateset_to_mask(
5482 sband,
5483 nla_data(tb[NL80211_TXRATE_LEGACY]),
5484 nla_len(tb[NL80211_TXRATE_LEGACY]));
24db78c0
SW		 5485 }
5486 if (tb[NL80211_TXRATE_MCS]) {
5487 if (!ht_rateset_to_mask(
5488 sband,
5489 nla_data(tb[NL80211_TXRATE_MCS]),
5490 nla_len(tb[NL80211_TXRATE_MCS]),
5491 mask.control[band].mcs))
5492 return -EINVAL;
5493 }
5494
5495 if (mask.control[band].legacy == 0) {
5496 /* don't allow empty legacy rates if HT
5497 * is not even supported. */
5498 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5499 return -EINVAL;
5500
5501 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5502 if (mask.control[band].mcs[i])
5503 break;
5504
5505 /* legacy and mcs rates may not be both empty */
5506 if (i == IEEE80211_HT_MCS_MASK_LEN)
4c476991 5507 return -EINVAL;
13ae75b1
JM		 5508 }
5509 }
5510
4c476991 5511 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5512}
5513
2e161f78 5514static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5515{
4c476991
JB		 5516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5517 struct net_device *dev = info->user_ptr[1];
2e161f78 5518 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5519
5520 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5521 return -EINVAL;
5522
2e161f78
JB		 5523 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5524 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5525
9d38d85d 5526 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5527 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5528 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5529 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5530 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5532 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5533 return -EOPNOTSUPP;
026331c4
JM		 5534
5535 /* not much point in registering if we can't reply */
4c476991
JB		 5536 if (!rdev->ops->mgmt_tx)
5537 return -EOPNOTSUPP;
026331c4 5538
4c476991 5539 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5540 frame_type,
026331c4
JM		 5541 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5542 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5543}
5544
2e161f78 5545static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5546{
4c476991
JB		 5547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5548 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5549 struct ieee80211_channel *chan;
5550 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5551 bool channel_type_valid = false;
026331c4
JM		 5552 u32 freq;
5553 int err;
d64d373f 5554 void *hdr = NULL;
026331c4 5555 u64 cookie;
e247bd90 5556 struct sk_buff *msg = NULL;
f7ca38df 5557 unsigned int wait = 0;
e247bd90
JB		 5558 bool offchan, no_cck, dont_wait_for_ack;
5559
5560 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5561
5562 if (!info->attrs[NL80211_ATTR_FRAME] ||
5563 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5564 return -EINVAL;
5565
4c476991
JB		 5566 if (!rdev->ops->mgmt_tx)
5567 return -EOPNOTSUPP;
026331c4 5568
9d38d85d 5569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5570 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5571 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5572 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5573 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5574 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5575 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5576 return -EOPNOTSUPP;
026331c4 5577
f7ca38df 5578 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5579 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5580 return -EINVAL;
5581 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5582 }
5583
026331c4
JM		 5584 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5585 channel_type = nla_get_u32(
5586 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5587 if (channel_type != NL80211_CHAN_NO_HT &&
5588 channel_type != NL80211_CHAN_HT20 &&
5589 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5590 channel_type != NL80211_CHAN_HT40MINUS)
5591 return -EINVAL;
252aa631 5592 channel_type_valid = true;
026331c4
JM		 5593 }
5594
f7ca38df
JB		 5595 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5596
7c4ef712
JB		 5597 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5598 return -EINVAL;
5599
e9f935e3
RM		 5600 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5601
026331c4
JM		 5602 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5603 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5604 if (chan == NULL)
5605 return -EINVAL;
026331c4 5606
e247bd90
JB		 5607 if (!dont_wait_for_ack) {
5608 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5609 if (!msg)
5610 return -ENOMEM;
026331c4 5611
e247bd90
JB		 5612 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5613 NL80211_CMD_FRAME);
026331c4 5614
e247bd90
JB		 5615 if (IS_ERR(hdr)) {
5616 err = PTR_ERR(hdr);
5617 goto free_msg;
5618 }
026331c4 5619 }
e247bd90 5620
f7ca38df
JB		 5621 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5622 channel_type_valid, wait,
2e161f78
JB		 5623 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5624 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5625 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5626 if (err)
5627 goto free_msg;
5628
e247bd90
JB		 5629 if (msg) {
5630 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5631
e247bd90
JB		 5632 genlmsg_end(msg, hdr);
5633 return genlmsg_reply(msg, info);
5634 }
5635
5636 return 0;
026331c4
JM		 5637
5638 nla_put_failure:
5639 err = -ENOBUFS;
5640 free_msg:
5641 nlmsg_free(msg);
026331c4
JM		 5642 return err;
5643}
5644
f7ca38df
JB		 5645static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5646{
5647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5648 struct net_device *dev = info->user_ptr[1];
5649 u64 cookie;
5650
5651 if (!info->attrs[NL80211_ATTR_COOKIE])
5652 return -EINVAL;
5653
5654 if (!rdev->ops->mgmt_tx_cancel_wait)
5655 return -EOPNOTSUPP;
5656
5657 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5660 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5661 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5662 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5663 return -EOPNOTSUPP;
5664
5665 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5666
5667 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5668}
5669
ffb9eb3d
KV		 5670static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5671{
4c476991 5672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5673 struct wireless_dev *wdev;
4c476991 5674 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5675 u8 ps_state;
5676 bool state;
5677 int err;
5678
4c476991
JB		 5679 if (!info->attrs[NL80211_ATTR_PS_STATE])
5680 return -EINVAL;
ffb9eb3d
KV		 5681
5682 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5683
4c476991
JB		 5684 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5685 return -EINVAL;
ffb9eb3d
KV		 5686
5687 wdev = dev->ieee80211_ptr;
5688
4c476991
JB		 5689 if (!rdev->ops->set_power_mgmt)
5690 return -EOPNOTSUPP;
ffb9eb3d
KV		 5691
5692 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5693
5694 if (state == wdev->ps)
4c476991 5695 return 0;
ffb9eb3d 5696
4c476991
JB		 5697 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5698 wdev->ps_timeout);
5699 if (!err)
5700 wdev->ps = state;
ffb9eb3d
KV		 5701 return err;
5702}
5703
5704static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5705{
4c476991 5706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5707 enum nl80211_ps_state ps_state;
5708 struct wireless_dev *wdev;
4c476991 5709 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5710 struct sk_buff *msg;
5711 void *hdr;
5712 int err;
5713
ffb9eb3d
KV		 5714 wdev = dev->ieee80211_ptr;
5715
4c476991
JB		 5716 if (!rdev->ops->set_power_mgmt)
5717 return -EOPNOTSUPP;
ffb9eb3d
KV		 5718
5719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5720 if (!msg)
5721 return -ENOMEM;
ffb9eb3d
KV		 5722
5723 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5724 NL80211_CMD_GET_POWER_SAVE);
5725 if (!hdr) {
4c476991 5726 err = -ENOBUFS;
ffb9eb3d
KV		 5727 goto free_msg;
5728 }
5729
5730 if (wdev->ps)
5731 ps_state = NL80211_PS_ENABLED;
5732 else
5733 ps_state = NL80211_PS_DISABLED;
5734
5735 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5736
5737 genlmsg_end(msg, hdr);
4c476991 5738 return genlmsg_reply(msg, info);
ffb9eb3d 5739
4c476991 5740 nla_put_failure:
ffb9eb3d 5741 err = -ENOBUFS;
4c476991 5742 free_msg:
ffb9eb3d 5743 nlmsg_free(msg);
ffb9eb3d
KV		 5744 return err;
5745}
5746
d6dc1a38
JO		 5747static struct nla_policy
5748nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5749 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5750 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5751 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5752};
5753
5754static int nl80211_set_cqm_rssi(struct genl_info *info,
5755 s32 threshold, u32 hysteresis)
5756{
4c476991 5757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5758 struct wireless_dev *wdev;
4c476991 5759 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5760
5761 if (threshold > 0)
5762 return -EINVAL;
5763
d6dc1a38
JO		 5764 wdev = dev->ieee80211_ptr;
5765
4c476991
JB		 5766 if (!rdev->ops->set_cqm_rssi_config)
5767 return -EOPNOTSUPP;
d6dc1a38 5768
074ac8df 5769 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5770 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5771 return -EOPNOTSUPP;
d6dc1a38 5772
4c476991
JB		 5773 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5774 threshold, hysteresis);
d6dc1a38
JO		 5775}
5776
5777static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5778{
5779 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5780 struct nlattr *cqm;
5781 int err;
5782
5783 cqm = info->attrs[NL80211_ATTR_CQM];
5784 if (!cqm) {
5785 err = -EINVAL;
5786 goto out;
5787 }
5788
5789 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5790 nl80211_attr_cqm_policy);
5791 if (err)
5792 goto out;
5793
5794 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5795 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5796 s32 threshold;
5797 u32 hysteresis;
5798 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5799 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5800 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5801 } else
5802 err = -EINVAL;
5803
5804out:
5805 return err;
5806}
5807
29cbe68c
JB		 5808static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5809{
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811 struct net_device *dev = info->user_ptr[1];
5812 struct mesh_config cfg;
c80d545d 5813 struct mesh_setup setup;
29cbe68c
JB		 5814 int err;
5815
5816 /* start with default */
5817 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5818 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5819
24bdd9f4 5820 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5821 /* and parse parameters if given */
24bdd9f4 5822 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5823 if (err)
5824 return err;
5825 }
5826
5827 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5828 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5829 return -EINVAL;
5830
c80d545d
JC		 5831 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5832 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5833
4bb62344
CYY		 5834 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5835 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5836 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5837 return -EINVAL;
5838
c80d545d
JC		 5839 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5840 /* parse additional setup parameters if given */
5841 err = nl80211_parse_mesh_setup(info, &setup);
5842 if (err)
5843 return err;
5844 }
5845
5846 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5847}
5848
5849static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5850{
5851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5852 struct net_device *dev = info->user_ptr[1];
5853
5854 return cfg80211_leave_mesh(rdev, dev);
5855}
5856
ff1b6e69
JB		 5857static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5858{
5859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5860 struct sk_buff *msg;
5861 void *hdr;
5862
5863 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5864 return -EOPNOTSUPP;
5865
5866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5867 if (!msg)
5868 return -ENOMEM;
5869
5870 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5871 NL80211_CMD_GET_WOWLAN);
5872 if (!hdr)
5873 goto nla_put_failure;
5874
5875 if (rdev->wowlan) {
5876 struct nlattr *nl_wowlan;
5877
5878 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5879 if (!nl_wowlan)
5880 goto nla_put_failure;
5881
5882 if (rdev->wowlan->any)
5883 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5884 if (rdev->wowlan->disconnect)
5885 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5886 if (rdev->wowlan->magic_pkt)
5887 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5888 if (rdev->wowlan->gtk_rekey_failure)
5889 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5890 if (rdev->wowlan->eap_identity_req)
5891 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5892 if (rdev->wowlan->four_way_handshake)
5893 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5894 if (rdev->wowlan->rfkill_release)
5895 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5896 if (rdev->wowlan->n_patterns) {
5897 struct nlattr *nl_pats, *nl_pat;
5898 int i, pat_len;
5899
5900 nl_pats = nla_nest_start(msg,
5901 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5902 if (!nl_pats)
5903 goto nla_put_failure;
5904
5905 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5906 nl_pat = nla_nest_start(msg, i + 1);
5907 if (!nl_pat)
5908 goto nla_put_failure;
5909 pat_len = rdev->wowlan->patterns[i].pattern_len;
5910 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5911 DIV_ROUND_UP(pat_len, 8),
5912 rdev->wowlan->patterns[i].mask);
5913 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5914 pat_len,
5915 rdev->wowlan->patterns[i].pattern);
5916 nla_nest_end(msg, nl_pat);
5917 }
5918 nla_nest_end(msg, nl_pats);
5919 }
5920
5921 nla_nest_end(msg, nl_wowlan);
5922 }
5923
5924 genlmsg_end(msg, hdr);
5925 return genlmsg_reply(msg, info);
5926
5927nla_put_failure:
5928 nlmsg_free(msg);
5929 return -ENOBUFS;
5930}
5931
5932static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5933{
5934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5935 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5936 struct cfg80211_wowlan no_triggers = {};
5937 struct cfg80211_wowlan new_triggers = {};
5938 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5939 int err, i;
5940
5941 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5942 return -EOPNOTSUPP;
5943
5944 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5945 goto no_triggers;
5946
5947 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5948 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5949 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5950 nl80211_wowlan_policy);
5951 if (err)
5952 return err;
5953
5954 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5955 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5956 return -EINVAL;
5957 new_triggers.any = true;
5958 }
5959
5960 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5961 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5962 return -EINVAL;
5963 new_triggers.disconnect = true;
5964 }
5965
5966 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5967 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5968 return -EINVAL;
5969 new_triggers.magic_pkt = true;
5970 }
5971
77dbbb13
JB		 5972 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5973 return -EINVAL;
5974
5975 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5976 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5977 return -EINVAL;
5978 new_triggers.gtk_rekey_failure = true;
5979 }
5980
5981 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5982 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5983 return -EINVAL;
5984 new_triggers.eap_identity_req = true;
5985 }
5986
5987 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5988 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5989 return -EINVAL;
5990 new_triggers.four_way_handshake = true;
5991 }
5992
5993 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5994 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5995 return -EINVAL;
5996 new_triggers.rfkill_release = true;
5997 }
5998
ff1b6e69
JB		 5999 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6000 struct nlattr *pat;
6001 int n_patterns = 0;
6002 int rem, pat_len, mask_len;
6003 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6004
6005 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6006 rem)
6007 n_patterns++;
6008 if (n_patterns > wowlan->n_patterns)
6009 return -EINVAL;
6010
6011 new_triggers.patterns = kcalloc(n_patterns,
6012 sizeof(new_triggers.patterns[0]),
6013 GFP_KERNEL);
6014 if (!new_triggers.patterns)
6015 return -ENOMEM;
6016
6017 new_triggers.n_patterns = n_patterns;
6018 i = 0;
6019
6020 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6021 rem) {
6022 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6023 nla_data(pat), nla_len(pat), NULL);
6024 err = -EINVAL;
6025 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6026 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6027 goto error;
6028 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6029 mask_len = DIV_ROUND_UP(pat_len, 8);
6030 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6031 mask_len)
6032 goto error;
6033 if (pat_len > wowlan->pattern_max_len ||
6034 pat_len < wowlan->pattern_min_len)
6035 goto error;
6036
6037 new_triggers.patterns[i].mask =
6038 kmalloc(mask_len + pat_len, GFP_KERNEL);
6039 if (!new_triggers.patterns[i].mask) {
6040 err = -ENOMEM;
6041 goto error;
6042 }
6043 new_triggers.patterns[i].pattern =
6044 new_triggers.patterns[i].mask + mask_len;
6045 memcpy(new_triggers.patterns[i].mask,
6046 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6047 mask_len);
6048 new_triggers.patterns[i].pattern_len = pat_len;
6049 memcpy(new_triggers.patterns[i].pattern,
6050 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6051 pat_len);
6052 i++;
6053 }
6054 }
6055
6056 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6057 struct cfg80211_wowlan *ntrig;
6058 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6059 GFP_KERNEL);
6060 if (!ntrig) {
6061 err = -ENOMEM;
6062 goto error;
6063 }
6064 cfg80211_rdev_free_wowlan(rdev);
6065 rdev->wowlan = ntrig;
6066 } else {
6067 no_triggers:
6068 cfg80211_rdev_free_wowlan(rdev);
6069 rdev->wowlan = NULL;
6070 }
6071
6072 return 0;
6073 error:
6074 for (i = 0; i < new_triggers.n_patterns; i++)
6075 kfree(new_triggers.patterns[i].mask);
6076 kfree(new_triggers.patterns);
6077 return err;
6078}
6079
e5497d76
JB		 6080static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6081{
6082 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6083 struct net_device *dev = info->user_ptr[1];
6084 struct wireless_dev *wdev = dev->ieee80211_ptr;
6085 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6086 struct cfg80211_gtk_rekey_data rekey_data;
6087 int err;
6088
6089 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6090 return -EINVAL;
6091
6092 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6093 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6094 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6095 nl80211_rekey_policy);
6096 if (err)
6097 return err;
6098
6099 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6100 return -ERANGE;
6101 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6102 return -ERANGE;
6103 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6104 return -ERANGE;
6105
6106 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6107 NL80211_KEK_LEN);
6108 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6109 NL80211_KCK_LEN);
6110 memcpy(rekey_data.replay_ctr,
6111 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6112 NL80211_REPLAY_CTR_LEN);
6113
6114 wdev_lock(wdev);
6115 if (!wdev->current_bss) {
6116 err = -ENOTCONN;
6117 goto out;
6118 }
6119
6120 if (!rdev->ops->set_rekey_data) {
6121 err = -EOPNOTSUPP;
6122 goto out;
6123 }
6124
6125 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6126 out:
6127 wdev_unlock(wdev);
6128 return err;
6129}
6130
28946da7
JB		 6131static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6132 struct genl_info *info)
6133{
6134 struct net_device *dev = info->user_ptr[1];
6135 struct wireless_dev *wdev = dev->ieee80211_ptr;
6136
6137 if (wdev->iftype != NL80211_IFTYPE_AP &&
6138 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6139 return -EINVAL;
6140
6141 if (wdev->ap_unexpected_nlpid)
6142 return -EBUSY;
6143
6144 wdev->ap_unexpected_nlpid = info->snd_pid;
6145 return 0;
6146}
6147
7f6cf311
JB		 6148static int nl80211_probe_client(struct sk_buff *skb,
6149 struct genl_info *info)
6150{
6151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6152 struct net_device *dev = info->user_ptr[1];
6153 struct wireless_dev *wdev = dev->ieee80211_ptr;
6154 struct sk_buff *msg;
6155 void *hdr;
6156 const u8 *addr;
6157 u64 cookie;
6158 int err;
6159
6160 if (wdev->iftype != NL80211_IFTYPE_AP &&
6161 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6162 return -EOPNOTSUPP;
6163
6164 if (!info->attrs[NL80211_ATTR_MAC])
6165 return -EINVAL;
6166
6167 if (!rdev->ops->probe_client)
6168 return -EOPNOTSUPP;
6169
6170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6171 if (!msg)
6172 return -ENOMEM;
6173
6174 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6175 NL80211_CMD_PROBE_CLIENT);
6176
6177 if (IS_ERR(hdr)) {
6178 err = PTR_ERR(hdr);
6179 goto free_msg;
6180 }
6181
6182 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6183
6184 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6185 if (err)
6186 goto free_msg;
6187
6188 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6189
6190 genlmsg_end(msg, hdr);
6191
6192 return genlmsg_reply(msg, info);
6193
6194 nla_put_failure:
6195 err = -ENOBUFS;
6196 free_msg:
6197 nlmsg_free(msg);
6198 return err;
6199}
6200
5e760230
JB		 6201static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6202{
6203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6204
6205 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6206 return -EOPNOTSUPP;
6207
6208 if (rdev->ap_beacons_nlpid)
6209 return -EBUSY;
6210
6211 rdev->ap_beacons_nlpid = info->snd_pid;
6212
6213 return 0;
6214}
6215
4c476991
JB		 6216#define NL80211_FLAG_NEED_WIPHY 0x01
6217#define NL80211_FLAG_NEED_NETDEV 0x02
6218#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6219#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6220#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6221 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6222
6223static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6224 struct genl_info *info)
6225{
6226 struct cfg80211_registered_device *rdev;
6227 struct net_device *dev;
6228 int err;
6229 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6230
6231 if (rtnl)
6232 rtnl_lock();
6233
6234 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6235 rdev = cfg80211_get_dev_from_info(info);
6236 if (IS_ERR(rdev)) {
6237 if (rtnl)
6238 rtnl_unlock();
6239 return PTR_ERR(rdev);
6240 }
6241 info->user_ptr[0] = rdev;
6242 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6243 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6244 &rdev, &dev);
4c476991
JB		 6245 if (err) {
6246 if (rtnl)
6247 rtnl_unlock();
6248 return err;
6249 }
41265714
JB		 6250 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6251 !netif_running(dev)) {
d537f5fd
JB		 6252 cfg80211_unlock_rdev(rdev);
6253 dev_put(dev);
41265714
JB		 6254 if (rtnl)
6255 rtnl_unlock();
6256 return -ENETDOWN;
6257 }
4c476991
JB		 6258 info->user_ptr[0] = rdev;
6259 info->user_ptr[1] = dev;
6260 }
6261
6262 return 0;
6263}
6264
6265static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6266 struct genl_info *info)
6267{
6268 if (info->user_ptr[0])
6269 cfg80211_unlock_rdev(info->user_ptr[0]);
6270 if (info->user_ptr[1])
6271 dev_put(info->user_ptr[1]);
6272 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6273 rtnl_unlock();
6274}
6275
55682965
JB		 6276static struct genl_ops nl80211_ops[] = {
6277 {
6278 .cmd = NL80211_CMD_GET_WIPHY,
6279 .doit = nl80211_get_wiphy,
6280 .dumpit = nl80211_dump_wiphy,
6281 .policy = nl80211_policy,
6282 /* can be retrieved by unprivileged users */
4c476991 6283 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6284 },
6285 {
6286 .cmd = NL80211_CMD_SET_WIPHY,
6287 .doit = nl80211_set_wiphy,
6288 .policy = nl80211_policy,
6289 .flags = GENL_ADMIN_PERM,
4c476991 6290 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6291 },
6292 {
6293 .cmd = NL80211_CMD_GET_INTERFACE,
6294 .doit = nl80211_get_interface,
6295 .dumpit = nl80211_dump_interface,
6296 .policy = nl80211_policy,
6297 /* can be retrieved by unprivileged users */
4c476991 6298 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6299 },
6300 {
6301 .cmd = NL80211_CMD_SET_INTERFACE,
6302 .doit = nl80211_set_interface,
6303 .policy = nl80211_policy,
6304 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6305 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6306 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6307 },
6308 {
6309 .cmd = NL80211_CMD_NEW_INTERFACE,
6310 .doit = nl80211_new_interface,
6311 .policy = nl80211_policy,
6312 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6313 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6314 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6315 },
6316 {
6317 .cmd = NL80211_CMD_DEL_INTERFACE,
6318 .doit = nl80211_del_interface,
6319 .policy = nl80211_policy,
41ade00f 6320 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6321 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6322 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6323 },
6324 {
6325 .cmd = NL80211_CMD_GET_KEY,
6326 .doit = nl80211_get_key,
6327 .policy = nl80211_policy,
6328 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6329 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6330 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6331 },
6332 {
6333 .cmd = NL80211_CMD_SET_KEY,
6334 .doit = nl80211_set_key,
6335 .policy = nl80211_policy,
6336 .flags = GENL_ADMIN_PERM,
41265714 6337 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6338 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6339 },
6340 {
6341 .cmd = NL80211_CMD_NEW_KEY,
6342 .doit = nl80211_new_key,
6343 .policy = nl80211_policy,
6344 .flags = GENL_ADMIN_PERM,
41265714 6345 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6346 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6347 },
6348 {
6349 .cmd = NL80211_CMD_DEL_KEY,
6350 .doit = nl80211_del_key,
6351 .policy = nl80211_policy,
55682965 6352 .flags = GENL_ADMIN_PERM,
41265714 6353 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6354 NL80211_FLAG_NEED_RTNL,
55682965 6355 },
ed1b6cc7
JB		 6356 {
6357 .cmd = NL80211_CMD_SET_BEACON,
6358 .policy = nl80211_policy,
6359 .flags = GENL_ADMIN_PERM,
6360 .doit = nl80211_addset_beacon,
4c476991
JB		 6361 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6362 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6363 },
6364 {
6365 .cmd = NL80211_CMD_NEW_BEACON,
6366 .policy = nl80211_policy,
6367 .flags = GENL_ADMIN_PERM,
6368 .doit = nl80211_addset_beacon,
4c476991
JB		 6369 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6370 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6371 },
6372 {
6373 .cmd = NL80211_CMD_DEL_BEACON,
6374 .policy = nl80211_policy,
6375 .flags = GENL_ADMIN_PERM,
6376 .doit = nl80211_del_beacon,
4c476991
JB		 6377 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6378 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6379 },
5727ef1b
JB		 6380 {
6381 .cmd = NL80211_CMD_GET_STATION,
6382 .doit = nl80211_get_station,
2ec600d6 6383 .dumpit = nl80211_dump_station,
5727ef1b 6384 .policy = nl80211_policy,
4c476991
JB		 6385 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6386 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6387 },
6388 {
6389 .cmd = NL80211_CMD_SET_STATION,
6390 .doit = nl80211_set_station,
6391 .policy = nl80211_policy,
6392 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6393 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6394 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6395 },
6396 {
6397 .cmd = NL80211_CMD_NEW_STATION,
6398 .doit = nl80211_new_station,
6399 .policy = nl80211_policy,
6400 .flags = GENL_ADMIN_PERM,
41265714 6401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6402 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6403 },
6404 {
6405 .cmd = NL80211_CMD_DEL_STATION,
6406 .doit = nl80211_del_station,
6407 .policy = nl80211_policy,
2ec600d6 6408 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6409 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6410 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6411 },
6412 {
6413 .cmd = NL80211_CMD_GET_MPATH,
6414 .doit = nl80211_get_mpath,
6415 .dumpit = nl80211_dump_mpath,
6416 .policy = nl80211_policy,
6417 .flags = GENL_ADMIN_PERM,
41265714 6418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6419 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6420 },
6421 {
6422 .cmd = NL80211_CMD_SET_MPATH,
6423 .doit = nl80211_set_mpath,
6424 .policy = nl80211_policy,
6425 .flags = GENL_ADMIN_PERM,
41265714 6426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6427 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6428 },
6429 {
6430 .cmd = NL80211_CMD_NEW_MPATH,
6431 .doit = nl80211_new_mpath,
6432 .policy = nl80211_policy,
6433 .flags = GENL_ADMIN_PERM,
41265714 6434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6435 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6436 },
6437 {
6438 .cmd = NL80211_CMD_DEL_MPATH,
6439 .doit = nl80211_del_mpath,
6440 .policy = nl80211_policy,
9f1ba906 6441 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6442 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6443 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6444 },
6445 {
6446 .cmd = NL80211_CMD_SET_BSS,
6447 .doit = nl80211_set_bss,
6448 .policy = nl80211_policy,
b2e1b302 6449 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6450 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6451 NL80211_FLAG_NEED_RTNL,
b2e1b302 6452 },
f130347c
LR		 6453 {
6454 .cmd = NL80211_CMD_GET_REG,
6455 .doit = nl80211_get_reg,
6456 .policy = nl80211_policy,
6457 /* can be retrieved by unprivileged users */
6458 },
b2e1b302
LR		 6459 {
6460 .cmd = NL80211_CMD_SET_REG,
6461 .doit = nl80211_set_reg,
6462 .policy = nl80211_policy,
6463 .flags = GENL_ADMIN_PERM,
6464 },
6465 {
6466 .cmd = NL80211_CMD_REQ_SET_REG,
6467 .doit = nl80211_req_set_reg,
6468 .policy = nl80211_policy,
93da9cc1 6469 .flags = GENL_ADMIN_PERM,
6470 },
6471 {
24bdd9f4
JC		 6472 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6473 .doit = nl80211_get_mesh_config,
93da9cc1 6474 .policy = nl80211_policy,
6475 /* can be retrieved by unprivileged users */
4c476991
JB		 6476 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6477 NL80211_FLAG_NEED_RTNL,
93da9cc1 6478 },
6479 {
24bdd9f4
JC		 6480 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6481 .doit = nl80211_update_mesh_config,
93da9cc1 6482 .policy = nl80211_policy,
9aed3cc1 6483 .flags = GENL_ADMIN_PERM,
29cbe68c 6484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6485 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6486 },
2a519311
JB		 6487 {
6488 .cmd = NL80211_CMD_TRIGGER_SCAN,
6489 .doit = nl80211_trigger_scan,
6490 .policy = nl80211_policy,
6491 .flags = GENL_ADMIN_PERM,
41265714 6492 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6493 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6494 },
6495 {
6496 .cmd = NL80211_CMD_GET_SCAN,
6497 .policy = nl80211_policy,
6498 .dumpit = nl80211_dump_scan,
6499 },
807f8a8c
LC		 6500 {
6501 .cmd = NL80211_CMD_START_SCHED_SCAN,
6502 .doit = nl80211_start_sched_scan,
6503 .policy = nl80211_policy,
6504 .flags = GENL_ADMIN_PERM,
6505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6506 NL80211_FLAG_NEED_RTNL,
6507 },
6508 {
6509 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6510 .doit = nl80211_stop_sched_scan,
6511 .policy = nl80211_policy,
6512 .flags = GENL_ADMIN_PERM,
6513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6514 NL80211_FLAG_NEED_RTNL,
6515 },
636a5d36
JM		 6516 {
6517 .cmd = NL80211_CMD_AUTHENTICATE,
6518 .doit = nl80211_authenticate,
6519 .policy = nl80211_policy,
6520 .flags = GENL_ADMIN_PERM,
41265714 6521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6522 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6523 },
6524 {
6525 .cmd = NL80211_CMD_ASSOCIATE,
6526 .doit = nl80211_associate,
6527 .policy = nl80211_policy,
6528 .flags = GENL_ADMIN_PERM,
41265714 6529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6530 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6531 },
6532 {
6533 .cmd = NL80211_CMD_DEAUTHENTICATE,
6534 .doit = nl80211_deauthenticate,
6535 .policy = nl80211_policy,
6536 .flags = GENL_ADMIN_PERM,
41265714 6537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6538 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6539 },
6540 {
6541 .cmd = NL80211_CMD_DISASSOCIATE,
6542 .doit = nl80211_disassociate,
6543 .policy = nl80211_policy,
6544 .flags = GENL_ADMIN_PERM,
41265714 6545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6546 NL80211_FLAG_NEED_RTNL,
636a5d36 6547 },
04a773ad
JB		 6548 {
6549 .cmd = NL80211_CMD_JOIN_IBSS,
6550 .doit = nl80211_join_ibss,
6551 .policy = nl80211_policy,
6552 .flags = GENL_ADMIN_PERM,
41265714 6553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6554 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6555 },
6556 {
6557 .cmd = NL80211_CMD_LEAVE_IBSS,
6558 .doit = nl80211_leave_ibss,
6559 .policy = nl80211_policy,
6560 .flags = GENL_ADMIN_PERM,
41265714 6561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6562 NL80211_FLAG_NEED_RTNL,
04a773ad 6563 },
aff89a9b
JB		 6564#ifdef CONFIG_NL80211_TESTMODE
6565 {
6566 .cmd = NL80211_CMD_TESTMODE,
6567 .doit = nl80211_testmode_do,
71063f0e 6568 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6569 .policy = nl80211_policy,
6570 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6571 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6572 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6573 },
6574#endif
b23aa676
SO		 6575 {
6576 .cmd = NL80211_CMD_CONNECT,
6577 .doit = nl80211_connect,
6578 .policy = nl80211_policy,
6579 .flags = GENL_ADMIN_PERM,
41265714 6580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6581 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6582 },
6583 {
6584 .cmd = NL80211_CMD_DISCONNECT,
6585 .doit = nl80211_disconnect,
6586 .policy = nl80211_policy,
6587 .flags = GENL_ADMIN_PERM,
41265714 6588 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6589 NL80211_FLAG_NEED_RTNL,
b23aa676 6590 },
463d0183
JB		 6591 {
6592 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6593 .doit = nl80211_wiphy_netns,
6594 .policy = nl80211_policy,
6595 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6596 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6597 NL80211_FLAG_NEED_RTNL,
463d0183 6598 },
61fa713c
HS		 6599 {
6600 .cmd = NL80211_CMD_GET_SURVEY,
6601 .policy = nl80211_policy,
6602 .dumpit = nl80211_dump_survey,
6603 },
67fbb16b
SO		 6604 {
6605 .cmd = NL80211_CMD_SET_PMKSA,
6606 .doit = nl80211_setdel_pmksa,
6607 .policy = nl80211_policy,
6608 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6609 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6610 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6611 },
6612 {
6613 .cmd = NL80211_CMD_DEL_PMKSA,
6614 .doit = nl80211_setdel_pmksa,
6615 .policy = nl80211_policy,
6616 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6617 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6618 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6619 },
6620 {
6621 .cmd = NL80211_CMD_FLUSH_PMKSA,
6622 .doit = nl80211_flush_pmksa,
6623 .policy = nl80211_policy,
6624 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6625 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6626 NL80211_FLAG_NEED_RTNL,
67fbb16b 6627 },
9588bbd5
JM		 6628 {
6629 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6630 .doit = nl80211_remain_on_channel,
6631 .policy = nl80211_policy,
6632 .flags = GENL_ADMIN_PERM,
41265714 6633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6634 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6635 },
6636 {
6637 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6638 .doit = nl80211_cancel_remain_on_channel,
6639 .policy = nl80211_policy,
6640 .flags = GENL_ADMIN_PERM,
41265714 6641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6642 NL80211_FLAG_NEED_RTNL,
9588bbd5 6643 },
13ae75b1
JM		 6644 {
6645 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6646 .doit = nl80211_set_tx_bitrate_mask,
6647 .policy = nl80211_policy,
6648 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6649 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6650 NL80211_FLAG_NEED_RTNL,
13ae75b1 6651 },
026331c4 6652 {
2e161f78
JB		 6653 .cmd = NL80211_CMD_REGISTER_FRAME,
6654 .doit = nl80211_register_mgmt,
026331c4
JM		 6655 .policy = nl80211_policy,
6656 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6657 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6658 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6659 },
6660 {
2e161f78
JB		 6661 .cmd = NL80211_CMD_FRAME,
6662 .doit = nl80211_tx_mgmt,
026331c4 6663 .policy = nl80211_policy,
f7ca38df
JB		 6664 .flags = GENL_ADMIN_PERM,
6665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6666 NL80211_FLAG_NEED_RTNL,
6667 },
6668 {
6669 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6670 .doit = nl80211_tx_mgmt_cancel_wait,
6671 .policy = nl80211_policy,
026331c4 6672 .flags = GENL_ADMIN_PERM,
41265714 6673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6674 NL80211_FLAG_NEED_RTNL,
026331c4 6675 },
ffb9eb3d
KV		 6676 {
6677 .cmd = NL80211_CMD_SET_POWER_SAVE,
6678 .doit = nl80211_set_power_save,
6679 .policy = nl80211_policy,
6680 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6681 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6682 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6683 },
6684 {
6685 .cmd = NL80211_CMD_GET_POWER_SAVE,
6686 .doit = nl80211_get_power_save,
6687 .policy = nl80211_policy,
6688 /* can be retrieved by unprivileged users */
4c476991
JB		 6689 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6690 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6691 },
d6dc1a38
JO		 6692 {
6693 .cmd = NL80211_CMD_SET_CQM,
6694 .doit = nl80211_set_cqm,
6695 .policy = nl80211_policy,
6696 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6697 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6698 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6699 },
f444de05
JB		 6700 {
6701 .cmd = NL80211_CMD_SET_CHANNEL,
6702 .doit = nl80211_set_channel,
6703 .policy = nl80211_policy,
6704 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6705 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6706 NL80211_FLAG_NEED_RTNL,
f444de05 6707 },
e8347eba
BJ		 6708 {
6709 .cmd = NL80211_CMD_SET_WDS_PEER,
6710 .doit = nl80211_set_wds_peer,
6711 .policy = nl80211_policy,
6712 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6713 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6714 NL80211_FLAG_NEED_RTNL,
e8347eba 6715 },
29cbe68c
JB		 6716 {
6717 .cmd = NL80211_CMD_JOIN_MESH,
6718 .doit = nl80211_join_mesh,
6719 .policy = nl80211_policy,
6720 .flags = GENL_ADMIN_PERM,
6721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6722 NL80211_FLAG_NEED_RTNL,
6723 },
6724 {
6725 .cmd = NL80211_CMD_LEAVE_MESH,
6726 .doit = nl80211_leave_mesh,
6727 .policy = nl80211_policy,
6728 .flags = GENL_ADMIN_PERM,
6729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6730 NL80211_FLAG_NEED_RTNL,
6731 },
ff1b6e69
JB		 6732 {
6733 .cmd = NL80211_CMD_GET_WOWLAN,
6734 .doit = nl80211_get_wowlan,
6735 .policy = nl80211_policy,
6736 /* can be retrieved by unprivileged users */
6737 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6738 NL80211_FLAG_NEED_RTNL,
6739 },
6740 {
6741 .cmd = NL80211_CMD_SET_WOWLAN,
6742 .doit = nl80211_set_wowlan,
6743 .policy = nl80211_policy,
6744 .flags = GENL_ADMIN_PERM,
6745 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6746 NL80211_FLAG_NEED_RTNL,
6747 },
e5497d76
JB		 6748 {
6749 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6750 .doit = nl80211_set_rekey_data,
6751 .policy = nl80211_policy,
6752 .flags = GENL_ADMIN_PERM,
6753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6754 NL80211_FLAG_NEED_RTNL,
6755 },
109086ce
AN		 6756 {
6757 .cmd = NL80211_CMD_TDLS_MGMT,
6758 .doit = nl80211_tdls_mgmt,
6759 .policy = nl80211_policy,
6760 .flags = GENL_ADMIN_PERM,
6761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6762 NL80211_FLAG_NEED_RTNL,
6763 },
6764 {
6765 .cmd = NL80211_CMD_TDLS_OPER,
6766 .doit = nl80211_tdls_oper,
6767 .policy = nl80211_policy,
6768 .flags = GENL_ADMIN_PERM,
6769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6770 NL80211_FLAG_NEED_RTNL,
6771 },
28946da7
JB		 6772 {
6773 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6774 .doit = nl80211_register_unexpected_frame,
6775 .policy = nl80211_policy,
6776 .flags = GENL_ADMIN_PERM,
6777 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6778 NL80211_FLAG_NEED_RTNL,
6779 },
7f6cf311
JB		 6780 {
6781 .cmd = NL80211_CMD_PROBE_CLIENT,
6782 .doit = nl80211_probe_client,
6783 .policy = nl80211_policy,
6784 .flags = GENL_ADMIN_PERM,
6785 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6786 NL80211_FLAG_NEED_RTNL,
6787 },
5e760230
JB		 6788 {
6789 .cmd = NL80211_CMD_REGISTER_BEACONS,
6790 .doit = nl80211_register_beacons,
6791 .policy = nl80211_policy,
6792 .flags = GENL_ADMIN_PERM,
6793 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6794 NL80211_FLAG_NEED_RTNL,
6795 },
1d9d9213
SW		 6796 {
6797 .cmd = NL80211_CMD_SET_NOACK_MAP,
6798 .doit = nl80211_set_noack_map,
6799 .policy = nl80211_policy,
6800 .flags = GENL_ADMIN_PERM,
6801 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6802 NL80211_FLAG_NEED_RTNL,
6803 },
6804
55682965 6805};
9588bbd5 6806
6039f6d2
JM		 6807static struct genl_multicast_group nl80211_mlme_mcgrp = {
6808 .name = "mlme",
6809};
55682965
JB		 6810
6811/* multicast groups */
6812static struct genl_multicast_group nl80211_config_mcgrp = {
6813 .name = "config",
6814};
2a519311
JB		 6815static struct genl_multicast_group nl80211_scan_mcgrp = {
6816 .name = "scan",
6817};
73d54c9e
LR		 6818static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6819 .name = "regulatory",
6820};
55682965
JB		 6821
6822/* notification functions */
6823
6824void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6825{
6826 struct sk_buff *msg;
6827
fd2120ca 6828 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6829 if (!msg)
6830 return;
6831
6832 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6833 nlmsg_free(msg);
6834 return;
6835 }
6836
463d0183
JB		 6837 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6838 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6839}
6840
362a415d
JB		 6841static int nl80211_add_scan_req(struct sk_buff *msg,
6842 struct cfg80211_registered_device *rdev)
6843{
6844 struct cfg80211_scan_request *req = rdev->scan_req;
6845 struct nlattr *nest;
6846 int i;
6847
667503dd
JB		 6848 ASSERT_RDEV_LOCK(rdev);
6849
362a415d
JB		 6850 if (WARN_ON(!req))
6851 return 0;
6852
6853 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6854 if (!nest)
6855 goto nla_put_failure;
6856 for (i = 0; i < req->n_ssids; i++)
6857 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6858 nla_nest_end(msg, nest);
6859
6860 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6861 if (!nest)
6862 goto nla_put_failure;
6863 for (i = 0; i < req->n_channels; i++)
6864 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6865 nla_nest_end(msg, nest);
6866
6867 if (req->ie)
6868 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6869
6870 return 0;
6871 nla_put_failure:
6872 return -ENOBUFS;
6873}
6874
a538e2d5
JB		 6875static int nl80211_send_scan_msg(struct sk_buff *msg,
6876 struct cfg80211_registered_device *rdev,
6877 struct net_device *netdev,
6878 u32 pid, u32 seq, int flags,
6879 u32 cmd)
2a519311
JB		 6880{
6881 void *hdr;
6882
6883 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6884 if (!hdr)
6885 return -1;
6886
b5850a7a 6887 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6888 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6889
362a415d
JB		 6890 /* ignore errors and send incomplete event anyway */
6891 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6892
6893 return genlmsg_end(msg, hdr);
6894
6895 nla_put_failure:
6896 genlmsg_cancel(msg, hdr);
6897 return -EMSGSIZE;
6898}
6899
807f8a8c
LC		 6900static int
6901nl80211_send_sched_scan_msg(struct sk_buff *msg,
6902 struct cfg80211_registered_device *rdev,
6903 struct net_device *netdev,
6904 u32 pid, u32 seq, int flags, u32 cmd)
6905{
6906 void *hdr;
6907
6908 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6909 if (!hdr)
6910 return -1;
6911
6912 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6913 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6914
6915 return genlmsg_end(msg, hdr);
6916
6917 nla_put_failure:
6918 genlmsg_cancel(msg, hdr);
6919 return -EMSGSIZE;
6920}
6921
a538e2d5
JB		 6922void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6923 struct net_device *netdev)
6924{
6925 struct sk_buff *msg;
6926
6927 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6928 if (!msg)
6929 return;
6930
6931 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6932 NL80211_CMD_TRIGGER_SCAN) < 0) {
6933 nlmsg_free(msg);
6934 return;
6935 }
6936
463d0183
JB		 6937 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6938 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6939}
6940
2a519311
JB		 6941void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6942 struct net_device *netdev)
6943{
6944 struct sk_buff *msg;
6945
fd2120ca 6946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6947 if (!msg)
6948 return;
6949
a538e2d5
JB		 6950 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6951 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6952 nlmsg_free(msg);
6953 return;
6954 }
6955
463d0183
JB		 6956 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6957 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6958}
6959
6960void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6961 struct net_device *netdev)
6962{
6963 struct sk_buff *msg;
6964
fd2120ca 6965 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6966 if (!msg)
6967 return;
6968
a538e2d5
JB		 6969 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6970 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6971 nlmsg_free(msg);
6972 return;
6973 }
6974
463d0183
JB		 6975 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6976 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6977}
6978
807f8a8c
LC		 6979void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6980 struct net_device *netdev)
6981{
6982 struct sk_buff *msg;
6983
6984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6985 if (!msg)
6986 return;
6987
6988 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6989 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6990 nlmsg_free(msg);
6991 return;
6992 }
6993
6994 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6995 nl80211_scan_mcgrp.id, GFP_KERNEL);
6996}
6997
6998void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6999 struct net_device *netdev, u32 cmd)
7000{
7001 struct sk_buff *msg;
7002
7003 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7004 if (!msg)
7005 return;
7006
7007 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7008 nlmsg_free(msg);
7009 return;
7010 }
7011
7012 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7013 nl80211_scan_mcgrp.id, GFP_KERNEL);
7014}
7015
73d54c9e
LR		 7016/*
7017 * This can happen on global regulatory changes or device specific settings
7018 * based on custom world regulatory domains.
7019 */
7020void nl80211_send_reg_change_event(struct regulatory_request *request)
7021{
7022 struct sk_buff *msg;
7023 void *hdr;
7024
fd2120ca 7025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 7026 if (!msg)
7027 return;
7028
7029 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7030 if (!hdr) {
7031 nlmsg_free(msg);
7032 return;
7033 }
7034
7035 /* Userspace can always count this one always being set */
7036 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
7037
7038 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
7039 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7040 NL80211_REGDOM_TYPE_WORLD);
7041 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
7042 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7043 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
7044 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7045 request->intersect)
7046 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7047 NL80211_REGDOM_TYPE_INTERSECTION);
7048 else {
7049 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
7050 NL80211_REGDOM_TYPE_COUNTRY);
7051 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
7052 }
7053
7054 if (wiphy_idx_valid(request->wiphy_idx))
7055 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
7056
3b7b72ee 7057 genlmsg_end(msg, hdr);
73d54c9e 7058
bc43b28c 7059 rcu_read_lock();
463d0183 7060 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 7061 GFP_ATOMIC);
7062 rcu_read_unlock();
73d54c9e
LR		 7063
7064 return;
7065
7066nla_put_failure:
7067 genlmsg_cancel(msg, hdr);
7068 nlmsg_free(msg);
7069}
7070
6039f6d2
JM		 7071static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7072 struct net_device *netdev,
7073 const u8 *buf, size_t len,
e6d6e342 7074 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 7075{
7076 struct sk_buff *msg;
7077 void *hdr;
7078
e6d6e342 7079 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 7080 if (!msg)
7081 return;
7082
7083 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7084 if (!hdr) {
7085 nlmsg_free(msg);
7086 return;
7087 }
7088
7089 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7090 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7091 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7092
3b7b72ee 7093 genlmsg_end(msg, hdr);
6039f6d2 7094
463d0183
JB		 7095 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7096 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 7097 return;
7098
7099 nla_put_failure:
7100 genlmsg_cancel(msg, hdr);
7101 nlmsg_free(msg);
7102}
7103
7104void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7105 struct net_device *netdev, const u8 *buf,
7106 size_t len, gfp_t gfp)
6039f6d2
JM		 7107{
7108 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7109 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 7110}
7111
7112void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7113 struct net_device *netdev, const u8 *buf,
e6d6e342 7114 size_t len, gfp_t gfp)
6039f6d2 7115{
e6d6e342
JB		 7116 nl80211_send_mlme_event(rdev, netdev, buf, len,
7117 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 7118}
7119
53b46b84 7120void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7121 struct net_device *netdev, const u8 *buf,
7122 size_t len, gfp_t gfp)
6039f6d2
JM		 7123{
7124 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7125 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7126}
7127
53b46b84
JM		 7128void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7129 struct net_device *netdev, const u8 *buf,
e6d6e342 7130 size_t len, gfp_t gfp)
6039f6d2
JM		 7131{
7132 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7133 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7134}
7135
cf4e594e
JM		 7136void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7137 struct net_device *netdev, const u8 *buf,
7138 size_t len, gfp_t gfp)
7139{
7140 nl80211_send_mlme_event(rdev, netdev, buf, len,
7141 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7142}
7143
7144void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7145 struct net_device *netdev, const u8 *buf,
7146 size_t len, gfp_t gfp)
7147{
7148 nl80211_send_mlme_event(rdev, netdev, buf, len,
7149 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7150}
7151
1b06bb40
LR		 7152static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7153 struct net_device *netdev, int cmd,
e6d6e342 7154 const u8 *addr, gfp_t gfp)
1965c853
JM		 7155{
7156 struct sk_buff *msg;
7157 void *hdr;
7158
e6d6e342 7159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7160 if (!msg)
7161 return;
7162
7163 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7164 if (!hdr) {
7165 nlmsg_free(msg);
7166 return;
7167 }
7168
7169 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7170 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7171 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7172 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7173
3b7b72ee 7174 genlmsg_end(msg, hdr);
1965c853 7175
463d0183
JB		 7176 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7177 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7178 return;
7179
7180 nla_put_failure:
7181 genlmsg_cancel(msg, hdr);
7182 nlmsg_free(msg);
7183}
7184
7185void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7186 struct net_device *netdev, const u8 *addr,
7187 gfp_t gfp)
1965c853
JM		 7188{
7189 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7190 addr, gfp);
1965c853
JM		 7191}
7192
7193void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7194 struct net_device *netdev, const u8 *addr,
7195 gfp_t gfp)
1965c853 7196{
e6d6e342
JB		 7197 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7198 addr, gfp);
1965c853
JM		 7199}
7200
b23aa676
SO		 7201void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7202 struct net_device *netdev, const u8 *bssid,
7203 const u8 *req_ie, size_t req_ie_len,
7204 const u8 *resp_ie, size_t resp_ie_len,
7205 u16 status, gfp_t gfp)
7206{
7207 struct sk_buff *msg;
7208 void *hdr;
7209
7210 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7211 if (!msg)
7212 return;
7213
7214 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7215 if (!hdr) {
7216 nlmsg_free(msg);
7217 return;
7218 }
7219
7220 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7221 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7222 if (bssid)
7223 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7224 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7225 if (req_ie)
7226 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7227 if (resp_ie)
7228 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7229
3b7b72ee 7230 genlmsg_end(msg, hdr);
b23aa676 7231
463d0183
JB		 7232 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7233 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7234 return;
7235
7236 nla_put_failure:
7237 genlmsg_cancel(msg, hdr);
7238 nlmsg_free(msg);
7239
7240}
7241
7242void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7243 struct net_device *netdev, const u8 *bssid,
7244 const u8 *req_ie, size_t req_ie_len,
7245 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7246{
7247 struct sk_buff *msg;
7248 void *hdr;
7249
7250 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7251 if (!msg)
7252 return;
7253
7254 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7255 if (!hdr) {
7256 nlmsg_free(msg);
7257 return;
7258 }
7259
7260 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7261 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7262 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7263 if (req_ie)
7264 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7265 if (resp_ie)
7266 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7267
3b7b72ee 7268 genlmsg_end(msg, hdr);
b23aa676 7269
463d0183
JB		 7270 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7271 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7272 return;
7273
7274 nla_put_failure:
7275 genlmsg_cancel(msg, hdr);
7276 nlmsg_free(msg);
7277
7278}
7279
7280void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7281 struct net_device *netdev, u16 reason,
667503dd 7282 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7283{
7284 struct sk_buff *msg;
7285 void *hdr;
7286
667503dd 7287 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7288 if (!msg)
7289 return;
7290
7291 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7292 if (!hdr) {
7293 nlmsg_free(msg);
7294 return;
7295 }
7296
7297 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7298 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7299 if (from_ap && reason)
7300 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7301 if (from_ap)
7302 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7303 if (ie)
7304 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7305
3b7b72ee 7306 genlmsg_end(msg, hdr);
b23aa676 7307
463d0183
JB		 7308 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7309 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7310 return;
7311
7312 nla_put_failure:
7313 genlmsg_cancel(msg, hdr);
7314 nlmsg_free(msg);
7315
7316}
7317
04a773ad
JB		 7318void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7319 struct net_device *netdev, const u8 *bssid,
7320 gfp_t gfp)
7321{
7322 struct sk_buff *msg;
7323 void *hdr;
7324
fd2120ca 7325 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7326 if (!msg)
7327 return;
7328
7329 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7330 if (!hdr) {
7331 nlmsg_free(msg);
7332 return;
7333 }
7334
7335 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7336 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7337 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7338
3b7b72ee 7339 genlmsg_end(msg, hdr);
04a773ad 7340
463d0183
JB		 7341 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7342 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7343 return;
7344
7345 nla_put_failure:
7346 genlmsg_cancel(msg, hdr);
7347 nlmsg_free(msg);
7348}
7349
c93b5e71
JC		 7350void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7351 struct net_device *netdev,
7352 const u8 *macaddr, const u8* ie, u8 ie_len,
7353 gfp_t gfp)
7354{
7355 struct sk_buff *msg;
7356 void *hdr;
7357
7358 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7359 if (!msg)
7360 return;
7361
7362 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7363 if (!hdr) {
7364 nlmsg_free(msg);
7365 return;
7366 }
7367
7368 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7369 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7370 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7371 if (ie_len && ie)
7372 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7373
3b7b72ee 7374 genlmsg_end(msg, hdr);
c93b5e71
JC		 7375
7376 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7377 nl80211_mlme_mcgrp.id, gfp);
7378 return;
7379
7380 nla_put_failure:
7381 genlmsg_cancel(msg, hdr);
7382 nlmsg_free(msg);
7383}
7384
a3b8b056
JM		 7385void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7386 struct net_device *netdev, const u8 *addr,
7387 enum nl80211_key_type key_type, int key_id,
e6d6e342 7388 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7389{
7390 struct sk_buff *msg;
7391 void *hdr;
7392
e6d6e342 7393 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7394 if (!msg)
7395 return;
7396
7397 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7398 if (!hdr) {
7399 nlmsg_free(msg);
7400 return;
7401 }
7402
7403 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7404 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7405 if (addr)
7406 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7407 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7408 if (key_id != -1)
7409 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7410 if (tsc)
7411 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7412
3b7b72ee 7413 genlmsg_end(msg, hdr);
a3b8b056 7414
463d0183
JB		 7415 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7416 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7417 return;
7418
7419 nla_put_failure:
7420 genlmsg_cancel(msg, hdr);
7421 nlmsg_free(msg);
7422}
7423
6bad8766
LR		 7424void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7425 struct ieee80211_channel *channel_before,
7426 struct ieee80211_channel *channel_after)
7427{
7428 struct sk_buff *msg;
7429 void *hdr;
7430 struct nlattr *nl_freq;
7431
fd2120ca 7432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7433 if (!msg)
7434 return;
7435
7436 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7437 if (!hdr) {
7438 nlmsg_free(msg);
7439 return;
7440 }
7441
7442 /*
7443 * Since we are applying the beacon hint to a wiphy we know its
7444 * wiphy_idx is valid
7445 */
7446 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7447
7448 /* Before */
7449 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7450 if (!nl_freq)
7451 goto nla_put_failure;
7452 if (nl80211_msg_put_channel(msg, channel_before))
7453 goto nla_put_failure;
7454 nla_nest_end(msg, nl_freq);
7455
7456 /* After */
7457 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7458 if (!nl_freq)
7459 goto nla_put_failure;
7460 if (nl80211_msg_put_channel(msg, channel_after))
7461 goto nla_put_failure;
7462 nla_nest_end(msg, nl_freq);
7463
3b7b72ee 7464 genlmsg_end(msg, hdr);
6bad8766 7465
463d0183
JB		 7466 rcu_read_lock();
7467 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7468 GFP_ATOMIC);
7469 rcu_read_unlock();
6bad8766
LR		 7470
7471 return;
7472
7473nla_put_failure:
7474 genlmsg_cancel(msg, hdr);
7475 nlmsg_free(msg);
7476}
7477
9588bbd5
JM		 7478static void nl80211_send_remain_on_chan_event(
7479 int cmd, struct cfg80211_registered_device *rdev,
7480 struct net_device *netdev, u64 cookie,
7481 struct ieee80211_channel *chan,
7482 enum nl80211_channel_type channel_type,
7483 unsigned int duration, gfp_t gfp)
7484{
7485 struct sk_buff *msg;
7486 void *hdr;
7487
7488 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7489 if (!msg)
7490 return;
7491
7492 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7493 if (!hdr) {
7494 nlmsg_free(msg);
7495 return;
7496 }
7497
7498 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7499 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7500 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7501 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7502 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7503
7504 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7505 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7506
3b7b72ee 7507 genlmsg_end(msg, hdr);
9588bbd5
JM		 7508
7509 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7510 nl80211_mlme_mcgrp.id, gfp);
7511 return;
7512
7513 nla_put_failure:
7514 genlmsg_cancel(msg, hdr);
7515 nlmsg_free(msg);
7516}
7517
7518void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7519 struct net_device *netdev, u64 cookie,
7520 struct ieee80211_channel *chan,
7521 enum nl80211_channel_type channel_type,
7522 unsigned int duration, gfp_t gfp)
7523{
7524 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7525 rdev, netdev, cookie, chan,
7526 channel_type, duration, gfp);
7527}
7528
7529void nl80211_send_remain_on_channel_cancel(
7530 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7531 u64 cookie, struct ieee80211_channel *chan,
7532 enum nl80211_channel_type channel_type, gfp_t gfp)
7533{
7534 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7535 rdev, netdev, cookie, chan,
7536 channel_type, 0, gfp);
7537}
7538
98b62183
JB		 7539void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7540 struct net_device *dev, const u8 *mac_addr,
7541 struct station_info *sinfo, gfp_t gfp)
7542{
7543 struct sk_buff *msg;
7544
7545 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7546 if (!msg)
7547 return;
7548
7549 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7550 nlmsg_free(msg);
7551 return;
7552 }
7553
7554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7555 nl80211_mlme_mcgrp.id, gfp);
7556}
7557
ec15e68b
JM		 7558void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7559 struct net_device *dev, const u8 *mac_addr,
7560 gfp_t gfp)
7561{
7562 struct sk_buff *msg;
7563 void *hdr;
7564
7565 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7566 if (!msg)
7567 return;
7568
7569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7570 if (!hdr) {
7571 nlmsg_free(msg);
7572 return;
7573 }
7574
7575 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7576 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7577
3b7b72ee 7578 genlmsg_end(msg, hdr);
ec15e68b
JM		 7579
7580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7581 nl80211_mlme_mcgrp.id, gfp);
7582 return;
7583
7584 nla_put_failure:
7585 genlmsg_cancel(msg, hdr);
7586 nlmsg_free(msg);
7587}
7588
b92ab5d8
JB		 7589static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7590 const u8 *addr, gfp_t gfp)
28946da7
JB		 7591{
7592 struct wireless_dev *wdev = dev->ieee80211_ptr;
7593 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7594 struct sk_buff *msg;
7595 void *hdr;
7596 int err;
7597 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7598
7599 if (!nlpid)
7600 return false;
7601
7602 msg = nlmsg_new(100, gfp);
7603 if (!msg)
7604 return true;
7605
b92ab5d8 7606 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7607 if (!hdr) {
7608 nlmsg_free(msg);
7609 return true;
7610 }
7611
7612 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7613 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7614 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7615
7616 err = genlmsg_end(msg, hdr);
7617 if (err < 0) {
7618 nlmsg_free(msg);
7619 return true;
7620 }
7621
7622 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7623 return true;
7624
7625 nla_put_failure:
7626 genlmsg_cancel(msg, hdr);
7627 nlmsg_free(msg);
7628 return true;
7629}
7630
b92ab5d8
JB		 7631bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7632{
7633 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7634 addr, gfp);
7635}
7636
7637bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7638 const u8 *addr, gfp_t gfp)
7639{
7640 return __nl80211_unexpected_frame(dev,
7641 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7642 addr, gfp);
7643}
7644
2e161f78
JB		 7645int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7646 struct net_device *netdev, u32 nlpid,
7647 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7648{
7649 struct sk_buff *msg;
7650 void *hdr;
026331c4
JM		 7651
7652 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7653 if (!msg)
7654 return -ENOMEM;
7655
2e161f78 7656 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7657 if (!hdr) {
7658 nlmsg_free(msg);
7659 return -ENOMEM;
7660 }
7661
7662 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7663 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7664 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7665 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7666
3b7b72ee 7667 genlmsg_end(msg, hdr);
026331c4 7668
3b7b72ee 7669 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7670
7671 nla_put_failure:
7672 genlmsg_cancel(msg, hdr);
7673 nlmsg_free(msg);
7674 return -ENOBUFS;
7675}
7676
2e161f78
JB		 7677void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7678 struct net_device *netdev, u64 cookie,
7679 const u8 *buf, size_t len, bool ack,
7680 gfp_t gfp)
026331c4
JM		 7681{
7682 struct sk_buff *msg;
7683 void *hdr;
7684
7685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7686 if (!msg)
7687 return;
7688
2e161f78 7689 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7690 if (!hdr) {
7691 nlmsg_free(msg);
7692 return;
7693 }
7694
7695 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7696 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7697 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7698 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7699 if (ack)
7700 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7701
3b7b72ee 7702 genlmsg_end(msg, hdr);
026331c4
JM		 7703
7704 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7705 return;
7706
7707 nla_put_failure:
7708 genlmsg_cancel(msg, hdr);
7709 nlmsg_free(msg);
7710}
7711
d6dc1a38
JO		 7712void
7713nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7714 struct net_device *netdev,
7715 enum nl80211_cqm_rssi_threshold_event rssi_event,
7716 gfp_t gfp)
7717{
7718 struct sk_buff *msg;
7719 struct nlattr *pinfoattr;
7720 void *hdr;
7721
7722 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7723 if (!msg)
7724 return;
7725
7726 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7727 if (!hdr) {
7728 nlmsg_free(msg);
7729 return;
7730 }
7731
7732 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7733 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7734
7735 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7736 if (!pinfoattr)
7737 goto nla_put_failure;
7738
7739 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7740 rssi_event);
7741
7742 nla_nest_end(msg, pinfoattr);
7743
3b7b72ee 7744 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7745
7746 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7747 nl80211_mlme_mcgrp.id, gfp);
7748 return;
7749
7750 nla_put_failure:
7751 genlmsg_cancel(msg, hdr);
7752 nlmsg_free(msg);
7753}
7754
e5497d76
JB		 7755void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7756 struct net_device *netdev, const u8 *bssid,
7757 const u8 *replay_ctr, gfp_t gfp)
7758{
7759 struct sk_buff *msg;
7760 struct nlattr *rekey_attr;
7761 void *hdr;
7762
7763 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7764 if (!msg)
7765 return;
7766
7767 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7768 if (!hdr) {
7769 nlmsg_free(msg);
7770 return;
7771 }
7772
7773 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7774 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7775 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7776
7777 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7778 if (!rekey_attr)
7779 goto nla_put_failure;
7780
7781 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7782 NL80211_REPLAY_CTR_LEN, replay_ctr);
7783
7784 nla_nest_end(msg, rekey_attr);
7785
3b7b72ee 7786 genlmsg_end(msg, hdr);
e5497d76
JB		 7787
7788 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7789 nl80211_mlme_mcgrp.id, gfp);
7790 return;
7791
7792 nla_put_failure:
7793 genlmsg_cancel(msg, hdr);
7794 nlmsg_free(msg);
7795}
7796
c9df56b4
JM		 7797void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7798 struct net_device *netdev, int index,
7799 const u8 *bssid, bool preauth, gfp_t gfp)
7800{
7801 struct sk_buff *msg;
7802 struct nlattr *attr;
7803 void *hdr;
7804
7805 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7806 if (!msg)
7807 return;
7808
7809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7810 if (!hdr) {
7811 nlmsg_free(msg);
7812 return;
7813 }
7814
7815 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7816 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7817
7818 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7819 if (!attr)
7820 goto nla_put_failure;
7821
7822 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7823 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7824 if (preauth)
7825 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7826
7827 nla_nest_end(msg, attr);
7828
3b7b72ee 7829 genlmsg_end(msg, hdr);
c9df56b4
JM		 7830
7831 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7832 nl80211_mlme_mcgrp.id, gfp);
7833 return;
7834
7835 nla_put_failure:
7836 genlmsg_cancel(msg, hdr);
7837 nlmsg_free(msg);
7838}
7839
c063dbf5
JB		 7840void
7841nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7842 struct net_device *netdev, const u8 *peer,
7843 u32 num_packets, gfp_t gfp)
7844{
7845 struct sk_buff *msg;
7846 struct nlattr *pinfoattr;
7847 void *hdr;
7848
7849 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7850 if (!msg)
7851 return;
7852
7853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7854 if (!hdr) {
7855 nlmsg_free(msg);
7856 return;
7857 }
7858
7859 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7860 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7861 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7862
7863 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7864 if (!pinfoattr)
7865 goto nla_put_failure;
7866
7867 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7868
7869 nla_nest_end(msg, pinfoattr);
7870
3b7b72ee 7871 genlmsg_end(msg, hdr);
c063dbf5
JB		 7872
7873 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7874 nl80211_mlme_mcgrp.id, gfp);
7875 return;
7876
7877 nla_put_failure:
7878 genlmsg_cancel(msg, hdr);
7879 nlmsg_free(msg);
7880}
7881
7f6cf311
JB		 7882void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7883 u64 cookie, bool acked, gfp_t gfp)
7884{
7885 struct wireless_dev *wdev = dev->ieee80211_ptr;
7886 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7887 struct sk_buff *msg;
7888 void *hdr;
7889 int err;
7890
7891 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7892 if (!msg)
7893 return;
7894
7895 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7896 if (!hdr) {
7897 nlmsg_free(msg);
7898 return;
7899 }
7900
7901 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7902 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7903 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7904 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7905 if (acked)
7906 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7907
7908 err = genlmsg_end(msg, hdr);
7909 if (err < 0) {
7910 nlmsg_free(msg);
7911 return;
7912 }
7913
7914 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7915 nl80211_mlme_mcgrp.id, gfp);
7916 return;
7917
7918 nla_put_failure:
7919 genlmsg_cancel(msg, hdr);
7920 nlmsg_free(msg);
7921}
7922EXPORT_SYMBOL(cfg80211_probe_status);
7923
5e760230
JB		 7924void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7925 const u8 *frame, size_t len,
7926 int freq, gfp_t gfp)
7927{
7928 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7929 struct sk_buff *msg;
7930 void *hdr;
7931 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7932
7933 if (!nlpid)
7934 return;
7935
7936 msg = nlmsg_new(len + 100, gfp);
7937 if (!msg)
7938 return;
7939
7940 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7941 if (!hdr) {
7942 nlmsg_free(msg);
7943 return;
7944 }
7945
7946 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7947 if (freq)
7948 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7949 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7950
7951 genlmsg_end(msg, hdr);
7952
7953 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7954 return;
7955
7956 nla_put_failure:
7957 genlmsg_cancel(msg, hdr);
7958 nlmsg_free(msg);
7959}
7960EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7961
026331c4
JM		 7962static int nl80211_netlink_notify(struct notifier_block * nb,
7963 unsigned long state,
7964 void *_notify)
7965{
7966 struct netlink_notify *notify = _notify;
7967 struct cfg80211_registered_device *rdev;
7968 struct wireless_dev *wdev;
7969
7970 if (state != NETLINK_URELEASE)
7971 return NOTIFY_DONE;
7972
7973 rcu_read_lock();
7974
5e760230 7975 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7976 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7977 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7978 if (rdev->ap_beacons_nlpid == notify->pid)
7979 rdev->ap_beacons_nlpid = 0;
7980 }
026331c4
JM		 7981
7982 rcu_read_unlock();
7983
7984 return NOTIFY_DONE;
7985}
7986
7987static struct notifier_block nl80211_netlink_notifier = {
7988 .notifier_call = nl80211_netlink_notify,
7989};
7990
55682965
JB		 7991/* initialisation/exit functions */
7992
7993int nl80211_init(void)
7994{
0d63cbb5 7995 int err;
55682965 7996
0d63cbb5
MM		 7997 err = genl_register_family_with_ops(&nl80211_fam,
7998 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7999 if (err)
8000 return err;
8001
55682965
JB		 8002 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8003 if (err)
8004 goto err_out;
8005
2a519311
JB		 8006 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8007 if (err)
8008 goto err_out;
8009
73d54c9e
LR		 8010 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8011 if (err)
8012 goto err_out;
8013
6039f6d2
JM		 8014 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8015 if (err)
8016 goto err_out;
8017
aff89a9b
JB		 8018#ifdef CONFIG_NL80211_TESTMODE
8019 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8020 if (err)
8021 goto err_out;
8022#endif
8023
026331c4
JM		 8024 err = netlink_register_notifier(&nl80211_netlink_notifier);
8025 if (err)
8026 goto err_out;
8027
55682965
JB		 8028 return 0;
8029 err_out:
8030 genl_unregister_family(&nl80211_fam);
8031 return err;
8032}
8033
8034void nl80211_exit(void)
8035{
026331c4 8036 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 8037 genl_unregister_family(&nl80211_fam);
8038}
kernel source for telekom puls (alcatel/mediatek)