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wl12xx: alloc buffer in driver_state_read to prevent compilation warning
[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];
430 int err = nla_parse_nested(kdt,
431 NUM_NL80211_KEY_DEFAULT_TYPES - 1,
432 tb[NL80211_KEY_DEFAULT_TYPES],
433 nl80211_key_default_policy);
434 if (err)
435 return err;
436
437 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
438 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
439 }
440
b9454e83
JB		 441 return 0;
442}
443
444static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
445{
446 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
447 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
448 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
449 }
450
451 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
452 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
453 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
454 }
455
456 if (info->attrs[NL80211_ATTR_KEY_IDX])
457 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
458
459 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
460 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
461
462 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
463 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
464
dbd2fd65
JB		 465 if (k->def) {
466 k->def_uni = true;
467 k->def_multi = true;
468 }
469 if (k->defmgmt)
470 k->def_multi = true;
471
e31b8213
JB		 472 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
473 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
474 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
475 return -EINVAL;
476 }
477
dbd2fd65
JB		 478 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
479 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
480 int err = nla_parse_nested(
481 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
482 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
483 nl80211_key_default_policy);
484 if (err)
485 return err;
486
487 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
488 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
489 }
490
b9454e83
JB		 491 return 0;
492}
493
494static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
495{
496 int err;
497
498 memset(k, 0, sizeof(*k));
499 k->idx = -1;
e31b8213 500 k->type = -1;
b9454e83
JB		 501
502 if (info->attrs[NL80211_ATTR_KEY])
503 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
504 else
505 err = nl80211_parse_key_old(info, k);
506
507 if (err)
508 return err;
509
510 if (k->def && k->defmgmt)
511 return -EINVAL;
512
dbd2fd65
JB		 513 if (k->defmgmt) {
514 if (k->def_uni || !k->def_multi)
515 return -EINVAL;
516 }
517
b9454e83
JB		 518 if (k->idx != -1) {
519 if (k->defmgmt) {
520 if (k->idx < 4 || k->idx > 5)
521 return -EINVAL;
522 } else if (k->def) {
523 if (k->idx < 0 || k->idx > 3)
524 return -EINVAL;
525 } else {
526 if (k->idx < 0 || k->idx > 5)
527 return -EINVAL;
528 }
529 }
530
531 return 0;
532}
533
fffd0934
JB		 534static struct cfg80211_cached_keys *
535nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
536 struct nlattr *keys)
537{
538 struct key_parse parse;
539 struct nlattr *key;
540 struct cfg80211_cached_keys *result;
541 int rem, err, def = 0;
542
543 result = kzalloc(sizeof(*result), GFP_KERNEL);
544 if (!result)
545 return ERR_PTR(-ENOMEM);
546
547 result->def = -1;
548 result->defmgmt = -1;
549
550 nla_for_each_nested(key, keys, rem) {
551 memset(&parse, 0, sizeof(parse));
552 parse.idx = -1;
553
554 err = nl80211_parse_key_new(key, &parse);
555 if (err)
556 goto error;
557 err = -EINVAL;
558 if (!parse.p.key)
559 goto error;
560 if (parse.idx < 0 || parse.idx > 4)
561 goto error;
562 if (parse.def) {
563 if (def)
564 goto error;
565 def = 1;
566 result->def = parse.idx;
dbd2fd65
JB		 567 if (!parse.def_uni || !parse.def_multi)
568 goto error;
fffd0934
JB		 569 } else if (parse.defmgmt)
570 goto error;
571 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 572 parse.idx, false, NULL);
fffd0934
JB		 573 if (err)
574 goto error;
575 result->params[parse.idx].cipher = parse.p.cipher;
576 result->params[parse.idx].key_len = parse.p.key_len;
577 result->params[parse.idx].key = result->data[parse.idx];
578 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
579 }
580
581 return result;
582 error:
583 kfree(result);
584 return ERR_PTR(err);
585}
586
587static int nl80211_key_allowed(struct wireless_dev *wdev)
588{
589 ASSERT_WDEV_LOCK(wdev);
590
fffd0934
JB		 591 switch (wdev->iftype) {
592 case NL80211_IFTYPE_AP:
593 case NL80211_IFTYPE_AP_VLAN:
074ac8df 594 case NL80211_IFTYPE_P2P_GO:
ff973af7 595 case NL80211_IFTYPE_MESH_POINT:
fffd0934
JB		 596 break;
597 case NL80211_IFTYPE_ADHOC:
598 if (!wdev->current_bss)
599 return -ENOLINK;
600 break;
601 case NL80211_IFTYPE_STATION:
074ac8df 602 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 603 if (wdev->sme_state != CFG80211_SME_CONNECTED)
604 return -ENOLINK;
605 break;
606 default:
607 return -EINVAL;
608 }
609
610 return 0;
611}
612
7527a782
JB		 613static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
614{
615 struct nlattr *nl_modes = nla_nest_start(msg, attr);
616 int i;
617
618 if (!nl_modes)
619 goto nla_put_failure;
620
621 i = 0;
622 while (ifmodes) {
623 if (ifmodes & 1)
624 NLA_PUT_FLAG(msg, i);
625 ifmodes >>= 1;
626 i++;
627 }
628
629 nla_nest_end(msg, nl_modes);
630 return 0;
631
632nla_put_failure:
633 return -ENOBUFS;
634}
635
636static int nl80211_put_iface_combinations(struct wiphy *wiphy,
637 struct sk_buff *msg)
638{
639 struct nlattr *nl_combis;
640 int i, j;
641
642 nl_combis = nla_nest_start(msg,
643 NL80211_ATTR_INTERFACE_COMBINATIONS);
644 if (!nl_combis)
645 goto nla_put_failure;
646
647 for (i = 0; i < wiphy->n_iface_combinations; i++) {
648 const struct ieee80211_iface_combination *c;
649 struct nlattr *nl_combi, *nl_limits;
650
651 c = &wiphy->iface_combinations[i];
652
653 nl_combi = nla_nest_start(msg, i + 1);
654 if (!nl_combi)
655 goto nla_put_failure;
656
657 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
658 if (!nl_limits)
659 goto nla_put_failure;
660
661 for (j = 0; j < c->n_limits; j++) {
662 struct nlattr *nl_limit;
663
664 nl_limit = nla_nest_start(msg, j + 1);
665 if (!nl_limit)
666 goto nla_put_failure;
667 NLA_PUT_U32(msg, NL80211_IFACE_LIMIT_MAX,
668 c->limits[j].max);
669 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
670 c->limits[j].types))
671 goto nla_put_failure;
672 nla_nest_end(msg, nl_limit);
673 }
674
675 nla_nest_end(msg, nl_limits);
676
677 if (c->beacon_int_infra_match)
678 NLA_PUT_FLAG(msg,
679 NL80211_IFACE_COMB_STA_AP_BI_MATCH);
680 NLA_PUT_U32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
681 c->num_different_channels);
682 NLA_PUT_U32(msg, NL80211_IFACE_COMB_MAXNUM,
683 c->max_interfaces);
684
685 nla_nest_end(msg, nl_combi);
686 }
687
688 nla_nest_end(msg, nl_combis);
689
690 return 0;
691nla_put_failure:
692 return -ENOBUFS;
693}
694
55682965
JB		 695static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
696 struct cfg80211_registered_device *dev)
697{
698 void *hdr;
ee688b00
JB		 699 struct nlattr *nl_bands, *nl_band;
700 struct nlattr *nl_freqs, *nl_freq;
701 struct nlattr *nl_rates, *nl_rate;
8fdc621d 702 struct nlattr *nl_cmds;
ee688b00
JB		 703 enum ieee80211_band band;
704 struct ieee80211_channel *chan;
705 struct ieee80211_rate *rate;
706 int i;
2e161f78
JB		 707 const struct ieee80211_txrx_stypes *mgmt_stypes =
708 dev->wiphy.mgmt_stypes;
55682965
JB		 709
710 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
711 if (!hdr)
712 return -1;
713
b5850a7a 714 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 715 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 716
f5ea9120
JB		 717 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
718 cfg80211_rdev_list_generation);
719
b9a5f8ca
JM		 720 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
721 dev->wiphy.retry_short);
722 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
723 dev->wiphy.retry_long);
724 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
725 dev->wiphy.frag_threshold);
726 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
727 dev->wiphy.rts_threshold);
81077e82
LT		 728 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
729 dev->wiphy.coverage_class);
2a519311
JB		 730 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
731 dev->wiphy.max_scan_ssids);
93b6aa69
LC		 732 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
733 dev->wiphy.max_sched_scan_ssids);
18a83659
JB		 734 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
735 dev->wiphy.max_scan_ie_len);
5a865bad
LC		 736 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
737 dev->wiphy.max_sched_scan_ie_len);
a1f1c21c
LC		 738 NLA_PUT_U8(msg, NL80211_ATTR_MAX_MATCH_SETS,
739 dev->wiphy.max_match_sets);
ee688b00 740
e31b8213
JB		 741 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
742 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
15d5dda6
JC		 743 if (dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH)
744 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH);
cedb5412
EP		 745 if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD)
746 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD);
f4b34b55
VN		 747 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)
748 NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT);
109086ce
AN		 749 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS)
750 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT);
751 if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)
752 NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP);
f4b34b55 753
25e47c18
JB		 754 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
755 sizeof(u32) * dev->wiphy.n_cipher_suites,
756 dev->wiphy.cipher_suites);
757
67fbb16b
SO		 758 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
759 dev->wiphy.max_num_pmkids);
760
c0692b8f
JB		 761 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
762 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
763
39fd5de4
BR		 764 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
765 dev->wiphy.available_antennas_tx);
766 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
767 dev->wiphy.available_antennas_rx);
768
87bbbe22
AN		 769 if (dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD)
770 NLA_PUT_U32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
771 dev->wiphy.probe_resp_offload);
772
7f531e03
BR		 773 if ((dev->wiphy.available_antennas_tx ||
774 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
afe0cbf8
BR		 775 u32 tx_ant = 0, rx_ant = 0;
776 int res;
777 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
778 if (!res) {
779 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, tx_ant);
780 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX, rx_ant);
781 }
782 }
783
7527a782
JB		 784 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
785 dev->wiphy.interface_modes))
f59ac048
LR		 786 goto nla_put_failure;
787
ee688b00
JB		 788 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
789 if (!nl_bands)
790 goto nla_put_failure;
791
792 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
793 if (!dev->wiphy.bands[band])
794 continue;
795
796 nl_band = nla_nest_start(msg, band);
797 if (!nl_band)
798 goto nla_put_failure;
799
d51626df
JB		 800 /* add HT info */
801 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
802 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
803 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
804 &dev->wiphy.bands[band]->ht_cap.mcs);
805 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
806 dev->wiphy.bands[band]->ht_cap.cap);
807 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
808 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
809 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
810 dev->wiphy.bands[band]->ht_cap.ampdu_density);
811 }
812
ee688b00
JB		 813 /* add frequencies */
814 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
815 if (!nl_freqs)
816 goto nla_put_failure;
817
818 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
819 nl_freq = nla_nest_start(msg, i);
820 if (!nl_freq)
821 goto nla_put_failure;
822
823 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 824
825 if (nl80211_msg_put_channel(msg, chan))
826 goto nla_put_failure;
e2f367f2 827
ee688b00
JB		 828 nla_nest_end(msg, nl_freq);
829 }
830
831 nla_nest_end(msg, nl_freqs);
832
833 /* add bitrates */
834 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
835 if (!nl_rates)
836 goto nla_put_failure;
837
838 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
839 nl_rate = nla_nest_start(msg, i);
840 if (!nl_rate)
841 goto nla_put_failure;
842
843 rate = &dev->wiphy.bands[band]->bitrates[i];
844 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
845 rate->bitrate);
846 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
847 NLA_PUT_FLAG(msg,
848 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
849
850 nla_nest_end(msg, nl_rate);
851 }
852
853 nla_nest_end(msg, nl_rates);
854
855 nla_nest_end(msg, nl_band);
856 }
857 nla_nest_end(msg, nl_bands);
858
8fdc621d
JB		 859 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
860 if (!nl_cmds)
861 goto nla_put_failure;
862
863 i = 0;
864#define CMD(op, n) \
865 do { \
866 if (dev->ops->op) { \
867 i++; \
868 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
869 } \
870 } while (0)
871
872 CMD(add_virtual_intf, NEW_INTERFACE);
873 CMD(change_virtual_intf, SET_INTERFACE);
874 CMD(add_key, NEW_KEY);
875 CMD(add_beacon, NEW_BEACON);
876 CMD(add_station, NEW_STATION);
877 CMD(add_mpath, NEW_MPATH);
24bdd9f4 878 CMD(update_mesh_config, SET_MESH_CONFIG);
8fdc621d 879 CMD(change_bss, SET_BSS);
636a5d36
JM		 880 CMD(auth, AUTHENTICATE);
881 CMD(assoc, ASSOCIATE);
882 CMD(deauth, DEAUTHENTICATE);
883 CMD(disassoc, DISASSOCIATE);
04a773ad 884 CMD(join_ibss, JOIN_IBSS);
29cbe68c 885 CMD(join_mesh, JOIN_MESH);
67fbb16b
SO		 886 CMD(set_pmksa, SET_PMKSA);
887 CMD(del_pmksa, DEL_PMKSA);
888 CMD(flush_pmksa, FLUSH_PMKSA);
7c4ef712
JB		 889 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
890 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 891 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 892 CMD(mgmt_tx, FRAME);
f7ca38df 893 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
5be83de5 894 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 895 i++;
896 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
897 }
f444de05 898 CMD(set_channel, SET_CHANNEL);
e8347eba 899 CMD(set_wds_peer, SET_WDS_PEER);
109086ce
AN		 900 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
901 CMD(tdls_mgmt, TDLS_MGMT);
902 CMD(tdls_oper, TDLS_OPER);
903 }
807f8a8c
LC		 904 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
905 CMD(sched_scan_start, START_SCHED_SCAN);
7f6cf311 906 CMD(probe_client, PROBE_CLIENT);
1d9d9213 907 CMD(set_noack_map, SET_NOACK_MAP);
5e760230
JB		 908 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
909 i++;
910 NLA_PUT_U32(msg, i, NL80211_CMD_REGISTER_BEACONS);
911 }
8fdc621d 912
4745fc09
KV		 913#ifdef CONFIG_NL80211_TESTMODE
914 CMD(testmode_cmd, TESTMODE);
915#endif
916
8fdc621d 917#undef CMD
b23aa676 918
6829c878 919 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 920 i++;
921 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
922 }
923
6829c878 924 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 925 i++;
926 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
927 }
928
8fdc621d
JB		 929 nla_nest_end(msg, nl_cmds);
930
7c4ef712
JB		 931 if (dev->ops->remain_on_channel &&
932 dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
a293911d
JB		 933 NLA_PUT_U32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
934 dev->wiphy.max_remain_on_channel_duration);
935
7c4ef712 936 if (dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)
f7ca38df
JB		 937 NLA_PUT_FLAG(msg, NL80211_ATTR_OFFCHANNEL_TX_OK);
938
2e161f78
JB		 939 if (mgmt_stypes) {
940 u16 stypes;
941 struct nlattr *nl_ftypes, *nl_ifs;
942 enum nl80211_iftype ift;
943
944 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
945 if (!nl_ifs)
946 goto nla_put_failure;
947
948 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
949 nl_ftypes = nla_nest_start(msg, ift);
950 if (!nl_ftypes)
951 goto nla_put_failure;
952 i = 0;
953 stypes = mgmt_stypes[ift].tx;
954 while (stypes) {
955 if (stypes & 1)
956 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
957 (i << 4) | IEEE80211_FTYPE_MGMT);
958 stypes >>= 1;
959 i++;
960 }
961 nla_nest_end(msg, nl_ftypes);
962 }
963
74b70a4e
JB		 964 nla_nest_end(msg, nl_ifs);
965
2e161f78
JB		 966 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
967 if (!nl_ifs)
968 goto nla_put_failure;
969
970 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
971 nl_ftypes = nla_nest_start(msg, ift);
972 if (!nl_ftypes)
973 goto nla_put_failure;
974 i = 0;
975 stypes = mgmt_stypes[ift].rx;
976 while (stypes) {
977 if (stypes & 1)
978 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
979 (i << 4) | IEEE80211_FTYPE_MGMT);
980 stypes >>= 1;
981 i++;
982 }
983 nla_nest_end(msg, nl_ftypes);
984 }
985 nla_nest_end(msg, nl_ifs);
986 }
987
ff1b6e69
JB		 988 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
989 struct nlattr *nl_wowlan;
990
991 nl_wowlan = nla_nest_start(msg,
992 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
993 if (!nl_wowlan)
994 goto nla_put_failure;
995
996 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
997 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
998 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
999 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
1000 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
1001 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 1002 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
1003 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
1004 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
1005 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
1006 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
1007 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
1008 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
1009 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
1010 if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
1011 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 1012 if (dev->wiphy.wowlan.n_patterns) {
1013 struct nl80211_wowlan_pattern_support pat = {
1014 .max_patterns = dev->wiphy.wowlan.n_patterns,
1015 .min_pattern_len =
1016 dev->wiphy.wowlan.pattern_min_len,
1017 .max_pattern_len =
1018 dev->wiphy.wowlan.pattern_max_len,
1019 };
1020 NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1021 sizeof(pat), &pat);
1022 }
1023
1024 nla_nest_end(msg, nl_wowlan);
1025 }
1026
7527a782
JB		 1027 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1028 dev->wiphy.software_iftypes))
1029 goto nla_put_failure;
1030
1031 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1032 goto nla_put_failure;
1033
562a7480
JB		 1034 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME)
1035 NLA_PUT_U32(msg, NL80211_ATTR_DEVICE_AP_SME,
1036 dev->wiphy.ap_sme_capa);
1037
1f074bd8
JB		 1038 NLA_PUT_U32(msg, NL80211_ATTR_FEATURE_FLAGS, dev->wiphy.features);
1039
7e7c8926
BG		 1040 if (dev->wiphy.ht_capa_mod_mask)
1041 NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1042 sizeof(*dev->wiphy.ht_capa_mod_mask),
1043 dev->wiphy.ht_capa_mod_mask);
1044
55682965
JB		 1045 return genlmsg_end(msg, hdr);
1046
1047 nla_put_failure:
bc3ed28c
TG		 1048 genlmsg_cancel(msg, hdr);
1049 return -EMSGSIZE;
55682965
JB		 1050}
1051
1052static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1053{
1054 int idx = 0;
1055 int start = cb->args[0];
1056 struct cfg80211_registered_device *dev;
1057
a1794390 1058 mutex_lock(&cfg80211_mutex);
79c97e97 1059 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 1060 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1061 continue;
b4637271 1062 if (++idx <= start)
55682965
JB		 1063 continue;
1064 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1065 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 1066 dev) < 0) {
1067 idx--;
55682965 1068 break;
b4637271 1069 }
55682965 1070 }
a1794390 1071 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1072
1073 cb->args[0] = idx;
1074
1075 return skb->len;
1076}
1077
1078static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1079{
1080 struct sk_buff *msg;
4c476991 1081 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 1082
fd2120ca 1083 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1084 if (!msg)
4c476991 1085 return -ENOMEM;
55682965 1086
4c476991
JB		 1087 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1088 nlmsg_free(msg);
1089 return -ENOBUFS;
1090 }
55682965 1091
134e6375 1092 return genlmsg_reply(msg, info);
55682965
JB		 1093}
1094
31888487
JM		 1095static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1096 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1097 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1098 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1099 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1100 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1101};
1102
1103static int parse_txq_params(struct nlattr *tb[],
1104 struct ieee80211_txq_params *txq_params)
1105{
1106 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1107 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1108 !tb[NL80211_TXQ_ATTR_AIFS])
1109 return -EINVAL;
1110
1111 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
1112 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1113 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1114 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1115 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1116
1117 return 0;
1118}
1119
f444de05
JB		 1120static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1121{
1122 /*
1123 * You can only set the channel explicitly for AP, mesh
1124 * and WDS type interfaces; all others have their channel
1125 * managed via their respective "establish a connection"
1126 * command (connect, join, ...)
1127 *
1128 * Monitors are special as they are normally slaved to
1129 * whatever else is going on, so they behave as though
1130 * you tried setting the wiphy channel itself.
1131 */
1132 return !wdev ||
1133 wdev->iftype == NL80211_IFTYPE_AP ||
1134 wdev->iftype == NL80211_IFTYPE_WDS ||
1135 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 1136 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1137 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 1138}
1139
1140static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1141 struct wireless_dev *wdev,
1142 struct genl_info *info)
1143{
1144 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1145 u32 freq;
1146 int result;
1147
1148 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1149 return -EINVAL;
1150
1151 if (!nl80211_can_set_dev_channel(wdev))
1152 return -EOPNOTSUPP;
1153
1154 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1155 channel_type = nla_get_u32(info->attrs[
1156 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1157 if (channel_type != NL80211_CHAN_NO_HT &&
1158 channel_type != NL80211_CHAN_HT20 &&
1159 channel_type != NL80211_CHAN_HT40PLUS &&
1160 channel_type != NL80211_CHAN_HT40MINUS)
1161 return -EINVAL;
1162 }
1163
1164 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1165
1166 mutex_lock(&rdev->devlist_mtx);
1167 if (wdev) {
1168 wdev_lock(wdev);
1169 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
1170 wdev_unlock(wdev);
1171 } else {
1172 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
1173 }
1174 mutex_unlock(&rdev->devlist_mtx);
1175
1176 return result;
1177}
1178
1179static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1180{
4c476991
JB		 1181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1182 struct net_device *netdev = info->user_ptr[1];
f444de05 1183
4c476991 1184 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 1185}
1186
e8347eba
BJ		 1187static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1188{
43b19952
JB		 1189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1190 struct net_device *dev = info->user_ptr[1];
1191 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 1192 const u8 *bssid;
e8347eba
BJ		 1193
1194 if (!info->attrs[NL80211_ATTR_MAC])
1195 return -EINVAL;
1196
43b19952
JB		 1197 if (netif_running(dev))
1198 return -EBUSY;
e8347eba 1199
43b19952
JB		 1200 if (!rdev->ops->set_wds_peer)
1201 return -EOPNOTSUPP;
e8347eba 1202
43b19952
JB		 1203 if (wdev->iftype != NL80211_IFTYPE_WDS)
1204 return -EOPNOTSUPP;
e8347eba
BJ		 1205
1206 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 1207 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 1208}
1209
1210
55682965
JB		 1211static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1212{
1213 struct cfg80211_registered_device *rdev;
f444de05
JB		 1214 struct net_device *netdev = NULL;
1215 struct wireless_dev *wdev;
a1e567c8 1216 int result = 0, rem_txq_params = 0;
31888487 1217 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 1218 u32 changed;
1219 u8 retry_short = 0, retry_long = 0;
1220 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 1221 u8 coverage_class = 0;
55682965 1222
f444de05
JB		 1223 /*
1224 * Try to find the wiphy and netdev. Normally this
1225 * function shouldn't need the netdev, but this is
1226 * done for backward compatibility -- previously
1227 * setting the channel was done per wiphy, but now
1228 * it is per netdev. Previous userland like hostapd
1229 * also passed a netdev to set_wiphy, so that it is
1230 * possible to let that go to the right netdev!
1231 */
4bbf4d56
JB		 1232 mutex_lock(&cfg80211_mutex);
1233
f444de05
JB		 1234 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1235 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1236
1237 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1238 if (netdev && netdev->ieee80211_ptr) {
1239 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1240 mutex_lock(&rdev->mtx);
1241 } else
1242 netdev = NULL;
4bbf4d56
JB		 1243 }
1244
f444de05
JB		 1245 if (!netdev) {
1246 rdev = __cfg80211_rdev_from_info(info);
1247 if (IS_ERR(rdev)) {
1248 mutex_unlock(&cfg80211_mutex);
4c476991 1249 return PTR_ERR(rdev);
f444de05
JB		 1250 }
1251 wdev = NULL;
1252 netdev = NULL;
1253 result = 0;
1254
1255 mutex_lock(&rdev->mtx);
1256 } else if (netif_running(netdev) &&
1257 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1258 wdev = netdev->ieee80211_ptr;
1259 else
1260 wdev = NULL;
1261
1262 /*
1263 * end workaround code, by now the rdev is available
1264 * and locked, and wdev may or may not be NULL.
1265 */
4bbf4d56
JB		 1266
1267 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 1268 result = cfg80211_dev_rename(
1269 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 1270
1271 mutex_unlock(&cfg80211_mutex);
1272
1273 if (result)
1274 goto bad_res;
31888487
JM		 1275
1276 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1277 struct ieee80211_txq_params txq_params;
1278 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1279
1280 if (!rdev->ops->set_txq_params) {
1281 result = -EOPNOTSUPP;
1282 goto bad_res;
1283 }
1284
f70f01c2
EP		 1285 if (!netdev) {
1286 result = -EINVAL;
1287 goto bad_res;
1288 }
1289
133a3ff2
JB		 1290 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1291 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1292 result = -EINVAL;
1293 goto bad_res;
1294 }
1295
31888487
JM		 1296 nla_for_each_nested(nl_txq_params,
1297 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1298 rem_txq_params) {
1299 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1300 nla_data(nl_txq_params),
1301 nla_len(nl_txq_params),
1302 txq_params_policy);
1303 result = parse_txq_params(tb, &txq_params);
1304 if (result)
1305 goto bad_res;
1306
1307 result = rdev->ops->set_txq_params(&rdev->wiphy,
f70f01c2 1308 netdev,
31888487
JM		 1309 &txq_params);
1310 if (result)
1311 goto bad_res;
1312 }
1313 }
55682965 1314
72bdcf34 1315 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 1316 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 1317 if (result)
1318 goto bad_res;
1319 }
1320
98d2ff8b
JO		 1321 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1322 enum nl80211_tx_power_setting type;
1323 int idx, mbm = 0;
1324
1325 if (!rdev->ops->set_tx_power) {
60ea385f 1326 result = -EOPNOTSUPP;
98d2ff8b
JO		 1327 goto bad_res;
1328 }
1329
1330 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1331 type = nla_get_u32(info->attrs[idx]);
1332
1333 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1334 (type != NL80211_TX_POWER_AUTOMATIC)) {
1335 result = -EINVAL;
1336 goto bad_res;
1337 }
1338
1339 if (type != NL80211_TX_POWER_AUTOMATIC) {
1340 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1341 mbm = nla_get_u32(info->attrs[idx]);
1342 }
1343
1344 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1345 if (result)
1346 goto bad_res;
1347 }
1348
afe0cbf8
BR		 1349 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1350 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1351 u32 tx_ant, rx_ant;
7f531e03
BR		 1352 if ((!rdev->wiphy.available_antennas_tx &&
1353 !rdev->wiphy.available_antennas_rx) ||
1354 !rdev->ops->set_antenna) {
afe0cbf8
BR		 1355 result = -EOPNOTSUPP;
1356 goto bad_res;
1357 }
1358
1359 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1360 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1361
a7ffac95 1362 /* reject antenna configurations which don't match the
7f531e03
BR		 1363 * available antenna masks, except for the "all" mask */
1364 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1365 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
a7ffac95
BR		 1366 result = -EINVAL;
1367 goto bad_res;
1368 }
1369
7f531e03
BR		 1370 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1371 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
a7ffac95 1372
afe0cbf8
BR		 1373 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1374 if (result)
1375 goto bad_res;
1376 }
1377
b9a5f8ca
JM		 1378 changed = 0;
1379
1380 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1381 retry_short = nla_get_u8(
1382 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1383 if (retry_short == 0) {
1384 result = -EINVAL;
1385 goto bad_res;
1386 }
1387 changed |= WIPHY_PARAM_RETRY_SHORT;
1388 }
1389
1390 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1391 retry_long = nla_get_u8(
1392 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1393 if (retry_long == 0) {
1394 result = -EINVAL;
1395 goto bad_res;
1396 }
1397 changed |= WIPHY_PARAM_RETRY_LONG;
1398 }
1399
1400 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1401 frag_threshold = nla_get_u32(
1402 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1403 if (frag_threshold < 256) {
1404 result = -EINVAL;
1405 goto bad_res;
1406 }
1407 if (frag_threshold != (u32) -1) {
1408 /*
1409 * Fragments (apart from the last one) are required to
1410 * have even length. Make the fragmentation code
1411 * simpler by stripping LSB should someone try to use
1412 * odd threshold value.
1413 */
1414 frag_threshold &= ~0x1;
1415 }
1416 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1417 }
1418
1419 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1420 rts_threshold = nla_get_u32(
1421 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1422 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1423 }
1424
81077e82
LT		 1425 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1426 coverage_class = nla_get_u8(
1427 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1428 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1429 }
1430
b9a5f8ca
JM		 1431 if (changed) {
1432 u8 old_retry_short, old_retry_long;
1433 u32 old_frag_threshold, old_rts_threshold;
81077e82 1434 u8 old_coverage_class;
b9a5f8ca
JM		 1435
1436 if (!rdev->ops->set_wiphy_params) {
1437 result = -EOPNOTSUPP;
1438 goto bad_res;
1439 }
1440
1441 old_retry_short = rdev->wiphy.retry_short;
1442 old_retry_long = rdev->wiphy.retry_long;
1443 old_frag_threshold = rdev->wiphy.frag_threshold;
1444 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1445 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1446
1447 if (changed & WIPHY_PARAM_RETRY_SHORT)
1448 rdev->wiphy.retry_short = retry_short;
1449 if (changed & WIPHY_PARAM_RETRY_LONG)
1450 rdev->wiphy.retry_long = retry_long;
1451 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1452 rdev->wiphy.frag_threshold = frag_threshold;
1453 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1454 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1455 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1456 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1457
1458 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1459 if (result) {
1460 rdev->wiphy.retry_short = old_retry_short;
1461 rdev->wiphy.retry_long = old_retry_long;
1462 rdev->wiphy.frag_threshold = old_frag_threshold;
1463 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1464 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1465 }
1466 }
72bdcf34 1467
306d6112 1468 bad_res:
4bbf4d56 1469 mutex_unlock(&rdev->mtx);
f444de05
JB		 1470 if (netdev)
1471 dev_put(netdev);
55682965
JB		 1472 return result;
1473}
1474
1475
1476static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1477 struct cfg80211_registered_device *rdev,
55682965
JB		 1478 struct net_device *dev)
1479{
1480 void *hdr;
1481
1482 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1483 if (!hdr)
1484 return -1;
1485
1486 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1487 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1488 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1489 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1490
1491 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1492 rdev->devlist_generation ^
1493 (cfg80211_rdev_list_generation << 2));
1494
55682965
JB		 1495 return genlmsg_end(msg, hdr);
1496
1497 nla_put_failure:
bc3ed28c
TG		 1498 genlmsg_cancel(msg, hdr);
1499 return -EMSGSIZE;
55682965
JB		 1500}
1501
1502static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1503{
1504 int wp_idx = 0;
1505 int if_idx = 0;
1506 int wp_start = cb->args[0];
1507 int if_start = cb->args[1];
f5ea9120 1508 struct cfg80211_registered_device *rdev;
55682965
JB		 1509 struct wireless_dev *wdev;
1510
a1794390 1511 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1512 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1513 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1514 continue;
bba95fef
JB		 1515 if (wp_idx < wp_start) {
1516 wp_idx++;
55682965 1517 continue;
bba95fef 1518 }
55682965
JB		 1519 if_idx = 0;
1520
f5ea9120
JB		 1521 mutex_lock(&rdev->devlist_mtx);
1522 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1523 if (if_idx < if_start) {
1524 if_idx++;
55682965 1525 continue;
bba95fef 1526 }
55682965
JB		 1527 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1528 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1529 rdev, wdev->netdev) < 0) {
1530 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1531 goto out;
1532 }
1533 if_idx++;
55682965 1534 }
f5ea9120 1535 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1536
1537 wp_idx++;
55682965 1538 }
bba95fef 1539 out:
a1794390 1540 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1541
1542 cb->args[0] = wp_idx;
1543 cb->args[1] = if_idx;
1544
1545 return skb->len;
1546}
1547
1548static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1549{
1550 struct sk_buff *msg;
4c476991
JB		 1551 struct cfg80211_registered_device *dev = info->user_ptr[0];
1552 struct net_device *netdev = info->user_ptr[1];
55682965 1553
fd2120ca 1554 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1555 if (!msg)
4c476991 1556 return -ENOMEM;
55682965 1557
d726405a 1558 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1559 dev, netdev) < 0) {
1560 nlmsg_free(msg);
1561 return -ENOBUFS;
1562 }
55682965 1563
134e6375 1564 return genlmsg_reply(msg, info);
55682965
JB		 1565}
1566
66f7ac50
MW		 1567static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1568 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1569 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1570 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1571 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1572 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1573};
1574
1575static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1576{
1577 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1578 int flag;
1579
1580 *mntrflags = 0;
1581
1582 if (!nla)
1583 return -EINVAL;
1584
1585 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1586 nla, mntr_flags_policy))
1587 return -EINVAL;
1588
1589 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1590 if (flags[flag])
1591 *mntrflags |= (1<<flag);
1592
1593 return 0;
1594}
1595
9bc383de 1596static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1597 struct net_device *netdev, u8 use_4addr,
1598 enum nl80211_iftype iftype)
9bc383de 1599{
ad4bb6f8 1600 if (!use_4addr) {
f350a0a8 1601 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1602 return -EBUSY;
9bc383de 1603 return 0;
ad4bb6f8 1604 }
9bc383de
JB		 1605
1606 switch (iftype) {
1607 case NL80211_IFTYPE_AP_VLAN:
1608 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1609 return 0;
1610 break;
1611 case NL80211_IFTYPE_STATION:
1612 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1613 return 0;
1614 break;
1615 default:
1616 break;
1617 }
1618
1619 return -EOPNOTSUPP;
1620}
1621
55682965
JB		 1622static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1623{
4c476991 1624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1625 struct vif_params params;
e36d56b6 1626 int err;
04a773ad 1627 enum nl80211_iftype otype, ntype;
4c476991 1628 struct net_device *dev = info->user_ptr[1];
92ffe055 1629 u32 _flags, *flags = NULL;
ac7f9cfa 1630 bool change = false;
55682965 1631
2ec600d6
LCC		 1632 memset(&params, 0, sizeof(params));
1633
04a773ad 1634 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1635
723b038d 1636 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1637 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1638 if (otype != ntype)
ac7f9cfa 1639 change = true;
4c476991
JB		 1640 if (ntype > NL80211_IFTYPE_MAX)
1641 return -EINVAL;
723b038d
JB		 1642 }
1643
92ffe055 1644 if (info->attrs[NL80211_ATTR_MESH_ID]) {
29cbe68c
JB		 1645 struct wireless_dev *wdev = dev->ieee80211_ptr;
1646
4c476991
JB		 1647 if (ntype != NL80211_IFTYPE_MESH_POINT)
1648 return -EINVAL;
29cbe68c
JB		 1649 if (netif_running(dev))
1650 return -EBUSY;
1651
1652 wdev_lock(wdev);
1653 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1654 IEEE80211_MAX_MESH_ID_LEN);
1655 wdev->mesh_id_up_len =
1656 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1657 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1658 wdev->mesh_id_up_len);
1659 wdev_unlock(wdev);
2ec600d6
LCC		 1660 }
1661
8b787643
FF		 1662 if (info->attrs[NL80211_ATTR_4ADDR]) {
1663 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1664 change = true;
ad4bb6f8 1665 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1666 if (err)
4c476991 1667 return err;
8b787643
FF		 1668 } else {
1669 params.use_4addr = -1;
1670 }
1671
92ffe055 1672 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1673 if (ntype != NL80211_IFTYPE_MONITOR)
1674 return -EINVAL;
92ffe055
JB		 1675 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1676 &_flags);
ac7f9cfa 1677 if (err)
4c476991 1678 return err;
ac7f9cfa
JB		 1679
1680 flags = &_flags;
1681 change = true;
92ffe055 1682 }
3b85875a 1683
ac7f9cfa 1684 if (change)
3d54d255 1685 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1686 else
1687 err = 0;
60719ffd 1688
9bc383de
JB		 1689 if (!err && params.use_4addr != -1)
1690 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1691
55682965
JB		 1692 return err;
1693}
1694
1695static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1696{
4c476991 1697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1698 struct vif_params params;
f9e10ce4 1699 struct net_device *dev;
55682965
JB		 1700 int err;
1701 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1702 u32 flags;
55682965 1703
2ec600d6
LCC		 1704 memset(&params, 0, sizeof(params));
1705
55682965
JB		 1706 if (!info->attrs[NL80211_ATTR_IFNAME])
1707 return -EINVAL;
1708
1709 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1710 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1711 if (type > NL80211_IFTYPE_MAX)
1712 return -EINVAL;
1713 }
1714
79c97e97 1715 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1716 !(rdev->wiphy.interface_modes & (1 << type)))
1717 return -EOPNOTSUPP;
55682965 1718
9bc383de 1719 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1720 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1721 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1722 if (err)
4c476991 1723 return err;
9bc383de 1724 }
8b787643 1725
66f7ac50
MW		 1726 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1727 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1728 &flags);
f9e10ce4 1729 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1730 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1731 type, err ? NULL : &flags, &params);
f9e10ce4
JB		 1732 if (IS_ERR(dev))
1733 return PTR_ERR(dev);
2ec600d6 1734
29cbe68c
JB		 1735 if (type == NL80211_IFTYPE_MESH_POINT &&
1736 info->attrs[NL80211_ATTR_MESH_ID]) {
1737 struct wireless_dev *wdev = dev->ieee80211_ptr;
1738
1739 wdev_lock(wdev);
1740 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1741 IEEE80211_MAX_MESH_ID_LEN);
1742 wdev->mesh_id_up_len =
1743 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1744 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1745 wdev->mesh_id_up_len);
1746 wdev_unlock(wdev);
1747 }
1748
f9e10ce4 1749 return 0;
55682965
JB		 1750}
1751
1752static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1753{
4c476991
JB		 1754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1755 struct net_device *dev = info->user_ptr[1];
55682965 1756
4c476991
JB		 1757 if (!rdev->ops->del_virtual_intf)
1758 return -EOPNOTSUPP;
55682965 1759
4c476991 1760 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1761}
1762
1d9d9213
SW		 1763static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
1764{
1765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1766 struct net_device *dev = info->user_ptr[1];
1767 u16 noack_map;
1768
1769 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
1770 return -EINVAL;
1771
1772 if (!rdev->ops->set_noack_map)
1773 return -EOPNOTSUPP;
1774
1775 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
1776
1777 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
1778}
1779
41ade00f
JB		 1780struct get_key_cookie {
1781 struct sk_buff *msg;
1782 int error;
b9454e83 1783 int idx;
41ade00f
JB		 1784};
1785
1786static void get_key_callback(void *c, struct key_params *params)
1787{
b9454e83 1788 struct nlattr *key;
41ade00f
JB		 1789 struct get_key_cookie *cookie = c;
1790
1791 if (params->key)
1792 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1793 params->key_len, params->key);
1794
1795 if (params->seq)
1796 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1797 params->seq_len, params->seq);
1798
1799 if (params->cipher)
1800 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1801 params->cipher);
1802
b9454e83
JB		 1803 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1804 if (!key)
1805 goto nla_put_failure;
1806
1807 if (params->key)
1808 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1809 params->key_len, params->key);
1810
1811 if (params->seq)
1812 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1813 params->seq_len, params->seq);
1814
1815 if (params->cipher)
1816 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1817 params->cipher);
1818
1819 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1820
1821 nla_nest_end(cookie->msg, key);
1822
41ade00f
JB		 1823 return;
1824 nla_put_failure:
1825 cookie->error = 1;
1826}
1827
1828static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1829{
4c476991 1830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1831 int err;
4c476991 1832 struct net_device *dev = info->user_ptr[1];
41ade00f 1833 u8 key_idx = 0;
e31b8213
JB		 1834 const u8 *mac_addr = NULL;
1835 bool pairwise;
41ade00f
JB		 1836 struct get_key_cookie cookie = {
1837 .error = 0,
1838 };
1839 void *hdr;
1840 struct sk_buff *msg;
1841
1842 if (info->attrs[NL80211_ATTR_KEY_IDX])
1843 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1844
3cfcf6ac 1845 if (key_idx > 5)
41ade00f
JB		 1846 return -EINVAL;
1847
1848 if (info->attrs[NL80211_ATTR_MAC])
1849 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1850
e31b8213
JB		 1851 pairwise = !!mac_addr;
1852 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1853 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1854 if (kt >= NUM_NL80211_KEYTYPES)
1855 return -EINVAL;
1856 if (kt != NL80211_KEYTYPE_GROUP &&
1857 kt != NL80211_KEYTYPE_PAIRWISE)
1858 return -EINVAL;
1859 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1860 }
1861
4c476991
JB		 1862 if (!rdev->ops->get_key)
1863 return -EOPNOTSUPP;
41ade00f 1864
fd2120ca 1865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1866 if (!msg)
1867 return -ENOMEM;
41ade00f
JB		 1868
1869 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1870 NL80211_CMD_NEW_KEY);
4c476991
JB		 1871 if (IS_ERR(hdr))
1872 return PTR_ERR(hdr);
41ade00f
JB		 1873
1874 cookie.msg = msg;
b9454e83 1875 cookie.idx = key_idx;
41ade00f
JB		 1876
1877 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1878 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1879 if (mac_addr)
1880 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1881
e31b8213
JB		 1882 if (pairwise && mac_addr &&
1883 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1884 return -ENOENT;
1885
1886 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1887 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1888
1889 if (err)
6c95e2a2 1890 goto free_msg;
41ade00f
JB		 1891
1892 if (cookie.error)
1893 goto nla_put_failure;
1894
1895 genlmsg_end(msg, hdr);
4c476991 1896 return genlmsg_reply(msg, info);
41ade00f
JB		 1897
1898 nla_put_failure:
1899 err = -ENOBUFS;
6c95e2a2 1900 free_msg:
41ade00f 1901 nlmsg_free(msg);
41ade00f
JB		 1902 return err;
1903}
1904
1905static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1906{
4c476991 1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1908 struct key_parse key;
41ade00f 1909 int err;
4c476991 1910 struct net_device *dev = info->user_ptr[1];
41ade00f 1911
b9454e83
JB		 1912 err = nl80211_parse_key(info, &key);
1913 if (err)
1914 return err;
41ade00f 1915
b9454e83 1916 if (key.idx < 0)
41ade00f
JB		 1917 return -EINVAL;
1918
b9454e83
JB		 1919 /* only support setting default key */
1920 if (!key.def && !key.defmgmt)
41ade00f
JB		 1921 return -EINVAL;
1922
dbd2fd65 1923 wdev_lock(dev->ieee80211_ptr);
3cfcf6ac 1924
dbd2fd65
JB		 1925 if (key.def) {
1926 if (!rdev->ops->set_default_key) {
1927 err = -EOPNOTSUPP;
1928 goto out;
1929 }
41ade00f 1930
dbd2fd65
JB		 1931 err = nl80211_key_allowed(dev->ieee80211_ptr);
1932 if (err)
1933 goto out;
1934
dbd2fd65
JB		 1935 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
1936 key.def_uni, key.def_multi);
1937
1938 if (err)
1939 goto out;
fffd0934 1940
3d23e349 1941#ifdef CONFIG_CFG80211_WEXT
dbd2fd65
JB		 1942 dev->ieee80211_ptr->wext.default_key = key.idx;
1943#endif
1944 } else {
1945 if (key.def_uni || !key.def_multi) {
1946 err = -EINVAL;
1947 goto out;
1948 }
1949
1950 if (!rdev->ops->set_default_mgmt_key) {
1951 err = -EOPNOTSUPP;
1952 goto out;
1953 }
1954
1955 err = nl80211_key_allowed(dev->ieee80211_ptr);
1956 if (err)
1957 goto out;
1958
1959 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
1960 dev, key.idx);
1961 if (err)
1962 goto out;
1963
1964#ifdef CONFIG_CFG80211_WEXT
1965 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126 1966#endif
dbd2fd65
JB		 1967 }
1968
1969 out:
fffd0934 1970 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1971
41ade00f
JB		 1972 return err;
1973}
1974
1975static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1976{
4c476991 1977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1978 int err;
4c476991 1979 struct net_device *dev = info->user_ptr[1];
b9454e83 1980 struct key_parse key;
e31b8213 1981 const u8 *mac_addr = NULL;
41ade00f 1982
b9454e83
JB		 1983 err = nl80211_parse_key(info, &key);
1984 if (err)
1985 return err;
41ade00f 1986
b9454e83 1987 if (!key.p.key)
41ade00f
JB		 1988 return -EINVAL;
1989
41ade00f
JB		 1990 if (info->attrs[NL80211_ATTR_MAC])
1991 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1992
e31b8213
JB		 1993 if (key.type == -1) {
1994 if (mac_addr)
1995 key.type = NL80211_KEYTYPE_PAIRWISE;
1996 else
1997 key.type = NL80211_KEYTYPE_GROUP;
1998 }
1999
2000 /* for now */
2001 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2002 key.type != NL80211_KEYTYPE_GROUP)
2003 return -EINVAL;
2004
4c476991
JB		 2005 if (!rdev->ops->add_key)
2006 return -EOPNOTSUPP;
25e47c18 2007
e31b8213
JB		 2008 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2009 key.type == NL80211_KEYTYPE_PAIRWISE,
2010 mac_addr))
4c476991 2011 return -EINVAL;
41ade00f 2012
fffd0934
JB		 2013 wdev_lock(dev->ieee80211_ptr);
2014 err = nl80211_key_allowed(dev->ieee80211_ptr);
2015 if (!err)
2016 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 2017 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 2018 mac_addr, &key.p);
2019 wdev_unlock(dev->ieee80211_ptr);
41ade00f 2020
41ade00f
JB		 2021 return err;
2022}
2023
2024static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2025{
4c476991 2026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 2027 int err;
4c476991 2028 struct net_device *dev = info->user_ptr[1];
41ade00f 2029 u8 *mac_addr = NULL;
b9454e83 2030 struct key_parse key;
41ade00f 2031
b9454e83
JB		 2032 err = nl80211_parse_key(info, &key);
2033 if (err)
2034 return err;
41ade00f
JB		 2035
2036 if (info->attrs[NL80211_ATTR_MAC])
2037 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2038
e31b8213
JB		 2039 if (key.type == -1) {
2040 if (mac_addr)
2041 key.type = NL80211_KEYTYPE_PAIRWISE;
2042 else
2043 key.type = NL80211_KEYTYPE_GROUP;
2044 }
2045
2046 /* for now */
2047 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2048 key.type != NL80211_KEYTYPE_GROUP)
2049 return -EINVAL;
2050
4c476991
JB		 2051 if (!rdev->ops->del_key)
2052 return -EOPNOTSUPP;
41ade00f 2053
fffd0934
JB		 2054 wdev_lock(dev->ieee80211_ptr);
2055 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 2056
2057 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2058 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2059 err = -ENOENT;
2060
fffd0934 2061 if (!err)
e31b8213
JB		 2062 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2063 key.type == NL80211_KEYTYPE_PAIRWISE,
2064 mac_addr);
41ade00f 2065
3d23e349 2066#ifdef CONFIG_CFG80211_WEXT
08645126 2067 if (!err) {
b9454e83 2068 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 2069 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 2070 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 2071 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2072 }
2073#endif
fffd0934 2074 wdev_unlock(dev->ieee80211_ptr);
08645126 2075
41ade00f
JB		 2076 return err;
2077}
2078
ed1b6cc7
JB		 2079static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
2080{
2081 int (*call)(struct wiphy *wiphy, struct net_device *dev,
2082 struct beacon_parameters *info);
4c476991
JB		 2083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2084 struct net_device *dev = info->user_ptr[1];
56d1893d 2085 struct wireless_dev *wdev = dev->ieee80211_ptr;
ed1b6cc7 2086 struct beacon_parameters params;
56d1893d 2087 int haveinfo = 0, err;
ed1b6cc7 2088
9946ecfb
JM		 2089 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2090 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2091 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2092 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
f4a11bb0
JB		 2093 return -EINVAL;
2094
074ac8df 2095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2096 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2097 return -EOPNOTSUPP;
eec60b03 2098
56d1893d
JB		 2099 memset(&params, 0, sizeof(params));
2100
ed1b6cc7
JB		 2101 switch (info->genlhdr->cmd) {
2102 case NL80211_CMD_NEW_BEACON:
2103 /* these are required for NEW_BEACON */
2104 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2105 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 2106 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2107 return -EINVAL;
ed1b6cc7 2108
56d1893d
JB		 2109 params.interval =
2110 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2111 params.dtim_period =
2112 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2113
2114 err = cfg80211_validate_beacon_int(rdev, params.interval);
2115 if (err)
2116 return err;
2117
32e9de84
JM		 2118 /*
2119 * In theory, some of these attributes could be required for
2120 * NEW_BEACON, but since they were not used when the command was
2121 * originally added, keep them optional for old user space
2122 * programs to work with drivers that do not need the additional
2123 * information.
2124 */
2125 if (info->attrs[NL80211_ATTR_SSID]) {
2126 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2127 params.ssid_len =
2128 nla_len(info->attrs[NL80211_ATTR_SSID]);
2129 if (params.ssid_len == 0 ||
2130 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2131 return -EINVAL;
2132 }
2133
2134 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2135 params.hidden_ssid = nla_get_u32(
2136 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2137 if (params.hidden_ssid !=
2138 NL80211_HIDDEN_SSID_NOT_IN_USE &&
2139 params.hidden_ssid !=
2140 NL80211_HIDDEN_SSID_ZERO_LEN &&
2141 params.hidden_ssid !=
2142 NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2143 return -EINVAL;
2144 }
2145
5fb628e9
JM		 2146 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2147
2148 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2149 params.auth_type = nla_get_u32(
2150 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2151 if (!nl80211_valid_auth_type(params.auth_type))
2152 return -EINVAL;
2153 } else
2154 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2155
2156 err = nl80211_crypto_settings(rdev, info, &params.crypto,
2157 NL80211_MAX_NR_CIPHER_SUITES);
2158 if (err)
2159 return err;
2160
79c97e97 2161 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 2162 break;
2163 case NL80211_CMD_SET_BEACON:
79c97e97 2164 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 2165 break;
2166 default:
2167 WARN_ON(1);
4c476991 2168 return -EOPNOTSUPP;
ed1b6cc7
JB		 2169 }
2170
4c476991
JB		 2171 if (!call)
2172 return -EOPNOTSUPP;
ed1b6cc7 2173
ed1b6cc7
JB		 2174 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2175 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2176 params.head_len =
2177 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2178 haveinfo = 1;
2179 }
2180
2181 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2182 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2183 params.tail_len =
2184 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2185 haveinfo = 1;
2186 }
2187
4c476991
JB		 2188 if (!haveinfo)
2189 return -EINVAL;
3b85875a 2190
9946ecfb
JM		 2191 if (info->attrs[NL80211_ATTR_IE]) {
2192 params.beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2193 params.beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2194 }
2195
2196 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2197 params.proberesp_ies =
2198 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2199 params.proberesp_ies_len =
2200 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2201 }
2202
2203 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2204 params.assocresp_ies =
2205 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2206 params.assocresp_ies_len =
2207 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2208 }
2209
00f740e1
AN		 2210 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2211 params.probe_resp =
2212 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2213 params.probe_resp_len =
2214 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2215 }
2216
56d1893d
JB		 2217 err = call(&rdev->wiphy, dev, &params);
2218 if (!err && params.interval)
2219 wdev->beacon_interval = params.interval;
2220 return err;
ed1b6cc7
JB		 2221}
2222
2223static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
2224{
4c476991
JB		 2225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2226 struct net_device *dev = info->user_ptr[1];
56d1893d
JB		 2227 struct wireless_dev *wdev = dev->ieee80211_ptr;
2228 int err;
ed1b6cc7 2229
4c476991
JB		 2230 if (!rdev->ops->del_beacon)
2231 return -EOPNOTSUPP;
ed1b6cc7 2232
074ac8df 2233 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2234 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2235 return -EOPNOTSUPP;
3b85875a 2236
56d1893d
JB		 2237 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
2238 if (!err)
2239 wdev->beacon_interval = 0;
2240 return err;
ed1b6cc7
JB		 2241}
2242
5727ef1b
JB		 2243static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2244 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2245 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2246 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 2247 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
b39c48fa 2248 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
5727ef1b
JB		 2249};
2250
eccb8e8f
JB		 2251static int parse_station_flags(struct genl_info *info,
2252 struct station_parameters *params)
5727ef1b
JB		 2253{
2254 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 2255 struct nlattr *nla;
5727ef1b
JB		 2256 int flag;
2257
eccb8e8f
JB		 2258 /*
2259 * Try parsing the new attribute first so userspace
2260 * can specify both for older kernels.
2261 */
2262 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2263 if (nla) {
2264 struct nl80211_sta_flag_update *sta_flags;
2265
2266 sta_flags = nla_data(nla);
2267 params->sta_flags_mask = sta_flags->mask;
2268 params->sta_flags_set = sta_flags->set;
2269 if ((params->sta_flags_mask |
2270 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2271 return -EINVAL;
2272 return 0;
2273 }
2274
2275 /* if present, parse the old attribute */
5727ef1b 2276
eccb8e8f 2277 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 2278 if (!nla)
2279 return 0;
2280
2281 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2282 nla, sta_flags_policy))
2283 return -EINVAL;
2284
eccb8e8f
JB		 2285 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
2286 params->sta_flags_mask &= ~1;
5727ef1b
JB		 2287
2288 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
2289 if (flags[flag])
eccb8e8f 2290 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 2291
2292 return 0;
2293}
2294
c8dcfd8a
FF		 2295static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2296 int attr)
2297{
2298 struct nlattr *rate;
2299 u16 bitrate;
2300
2301 rate = nla_nest_start(msg, attr);
2302 if (!rate)
2303 goto nla_put_failure;
2304
2305 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2306 bitrate = cfg80211_calculate_bitrate(info);
2307 if (bitrate > 0)
2308 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2309
2310 if (info->flags & RATE_INFO_FLAGS_MCS)
2311 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
2312 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
2313 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
2314 if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
2315 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
2316
2317 nla_nest_end(msg, rate);
2318 return true;
2319
2320nla_put_failure:
2321 return false;
2322}
2323
fd5b74dc
JB		 2324static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2325 int flags, struct net_device *dev,
98b62183 2326 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 2327{
2328 void *hdr;
f4263c98 2329 struct nlattr *sinfoattr, *bss_param;
fd5b74dc
JB		 2330
2331 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2332 if (!hdr)
2333 return -1;
2334
2335 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2336 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
2337
f5ea9120
JB		 2338 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
2339
2ec600d6
LCC		 2340 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2341 if (!sinfoattr)
fd5b74dc 2342 goto nla_put_failure;
ebe27c91
MSS		 2343 if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
2344 NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2345 sinfo->connected_time);
2ec600d6
LCC		 2346 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
2347 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2348 sinfo->inactive_time);
2349 if (sinfo->filled & STATION_INFO_RX_BYTES)
2350 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
2351 sinfo->rx_bytes);
2352 if (sinfo->filled & STATION_INFO_TX_BYTES)
2353 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
2354 sinfo->tx_bytes);
2355 if (sinfo->filled & STATION_INFO_LLID)
2356 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
2357 sinfo->llid);
2358 if (sinfo->filled & STATION_INFO_PLID)
2359 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
2360 sinfo->plid);
2361 if (sinfo->filled & STATION_INFO_PLINK_STATE)
2362 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
2363 sinfo->plink_state);
420e7fab
HR		 2364 if (sinfo->filled & STATION_INFO_SIGNAL)
2365 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
2366 sinfo->signal);
541a45a1
BR		 2367 if (sinfo->filled & STATION_INFO_SIGNAL_AVG)
2368 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2369 sinfo->signal_avg);
420e7fab 2370 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
c8dcfd8a
FF		 2371 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2372 NL80211_STA_INFO_TX_BITRATE))
2373 goto nla_put_failure;
2374 }
2375 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2376 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2377 NL80211_STA_INFO_RX_BITRATE))
420e7fab 2378 goto nla_put_failure;
420e7fab 2379 }
98c8a60a
JM		 2380 if (sinfo->filled & STATION_INFO_RX_PACKETS)
2381 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
2382 sinfo->rx_packets);
2383 if (sinfo->filled & STATION_INFO_TX_PACKETS)
2384 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
2385 sinfo->tx_packets);
b206b4ef
BR		 2386 if (sinfo->filled & STATION_INFO_TX_RETRIES)
2387 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
2388 sinfo->tx_retries);
2389 if (sinfo->filled & STATION_INFO_TX_FAILED)
2390 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
2391 sinfo->tx_failed);
f4263c98
PS		 2392 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2393 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2394 if (!bss_param)
2395 goto nla_put_failure;
2396
2397 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT)
2398 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_CTS_PROT);
2399 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE)
2400 NLA_PUT_FLAG(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE);
2401 if (sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME)
2402 NLA_PUT_FLAG(msg,
2403 NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME);
2404 NLA_PUT_U8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2405 sinfo->bss_param.dtim_period);
2406 NLA_PUT_U16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2407 sinfo->bss_param.beacon_interval);
2408
2409 nla_nest_end(msg, bss_param);
2410 }
bb6e753e
HS		 2411 if (sinfo->filled & STATION_INFO_STA_FLAGS)
2412 NLA_PUT(msg, NL80211_STA_INFO_STA_FLAGS,
2413 sizeof(struct nl80211_sta_flag_update),
2414 &sinfo->sta_flags);
2ec600d6 2415 nla_nest_end(msg, sinfoattr);
fd5b74dc 2416
040bdf71 2417 if (sinfo->filled & STATION_INFO_ASSOC_REQ_IES)
50d3dfb7
JM		 2418 NLA_PUT(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2419 sinfo->assoc_req_ies);
2420
fd5b74dc
JB		 2421 return genlmsg_end(msg, hdr);
2422
2423 nla_put_failure:
bc3ed28c
TG		 2424 genlmsg_cancel(msg, hdr);
2425 return -EMSGSIZE;
fd5b74dc
JB		 2426}
2427
2ec600d6 2428static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 2429 struct netlink_callback *cb)
2ec600d6 2430{
2ec600d6
LCC		 2431 struct station_info sinfo;
2432 struct cfg80211_registered_device *dev;
bba95fef 2433 struct net_device *netdev;
2ec600d6 2434 u8 mac_addr[ETH_ALEN];
bba95fef 2435 int sta_idx = cb->args[1];
2ec600d6 2436 int err;
2ec600d6 2437
67748893
JB		 2438 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2439 if (err)
2440 return err;
bba95fef
JB		 2441
2442 if (!dev->ops->dump_station) {
eec60b03 2443 err = -EOPNOTSUPP;
bba95fef
JB		 2444 goto out_err;
2445 }
2446
bba95fef 2447 while (1) {
f612cedf 2448 memset(&sinfo, 0, sizeof(sinfo));
bba95fef
JB		 2449 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2450 mac_addr, &sinfo);
2451 if (err == -ENOENT)
2452 break;
2453 if (err)
3b85875a 2454 goto out_err;
bba95fef
JB		 2455
2456 if (nl80211_send_station(skb,
2457 NETLINK_CB(cb->skb).pid,
2458 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2459 netdev, mac_addr,
2460 &sinfo) < 0)
2461 goto out;
2462
2463 sta_idx++;
2464 }
2465
2466
2467 out:
2468 cb->args[1] = sta_idx;
2469 err = skb->len;
bba95fef 2470 out_err:
67748893 2471 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 2472
2473 return err;
2ec600d6 2474}
fd5b74dc 2475
5727ef1b
JB		 2476static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2477{
4c476991
JB		 2478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2479 struct net_device *dev = info->user_ptr[1];
2ec600d6 2480 struct station_info sinfo;
fd5b74dc
JB		 2481 struct sk_buff *msg;
2482 u8 *mac_addr = NULL;
4c476991 2483 int err;
fd5b74dc 2484
2ec600d6 2485 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 2486
2487 if (!info->attrs[NL80211_ATTR_MAC])
2488 return -EINVAL;
2489
2490 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2491
4c476991
JB		 2492 if (!rdev->ops->get_station)
2493 return -EOPNOTSUPP;
3b85875a 2494
4c476991 2495 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 2496 if (err)
4c476991 2497 return err;
2ec600d6 2498
fd2120ca 2499 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 2500 if (!msg)
4c476991 2501 return -ENOMEM;
fd5b74dc
JB		 2502
2503 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2504 dev, mac_addr, &sinfo) < 0) {
2505 nlmsg_free(msg);
2506 return -ENOBUFS;
2507 }
3b85875a 2508
4c476991 2509 return genlmsg_reply(msg, info);
5727ef1b
JB		 2510}
2511
2512/*
c258d2de 2513 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 2514 */
80b99899
JB		 2515static struct net_device *get_vlan(struct genl_info *info,
2516 struct cfg80211_registered_device *rdev)
5727ef1b 2517{
463d0183 2518 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
80b99899
JB		 2519 struct net_device *v;
2520 int ret;
2521
2522 if (!vlanattr)
2523 return NULL;
2524
2525 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2526 if (!v)
2527 return ERR_PTR(-ENODEV);
2528
2529 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2530 ret = -EINVAL;
2531 goto error;
5727ef1b 2532 }
80b99899
JB		 2533
2534 if (!netif_running(v)) {
2535 ret = -ENETDOWN;
2536 goto error;
2537 }
2538
2539 return v;
2540 error:
2541 dev_put(v);
2542 return ERR_PTR(ret);
5727ef1b
JB		 2543}
2544
2545static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2546{
4c476991 2547 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2548 int err;
4c476991 2549 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2550 struct station_parameters params;
2551 u8 *mac_addr = NULL;
2552
2553 memset(&params, 0, sizeof(params));
2554
2555 params.listen_interval = -1;
57cf8043 2556 params.plink_state = -1;
5727ef1b
JB		 2557
2558 if (info->attrs[NL80211_ATTR_STA_AID])
2559 return -EINVAL;
2560
2561 if (!info->attrs[NL80211_ATTR_MAC])
2562 return -EINVAL;
2563
2564 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2565
2566 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2567 params.supported_rates =
2568 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2569 params.supported_rates_len =
2570 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2571 }
2572
2573 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2574 params.listen_interval =
2575 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2576
36aedc90
JM		 2577 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2578 params.ht_capa =
2579 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2580
eccb8e8f 2581 if (parse_station_flags(info, &params))
5727ef1b
JB		 2582 return -EINVAL;
2583
2ec600d6
LCC		 2584 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2585 params.plink_action =
2586 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2587
9c3990aa
JC		 2588 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
2589 params.plink_state =
2590 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
2591
80b99899
JB		 2592 params.vlan = get_vlan(info, rdev);
2593 if (IS_ERR(params.vlan))
2594 return PTR_ERR(params.vlan);
a97f4424
JB		 2595
2596 /* validate settings */
2597 err = 0;
2598
2599 switch (dev->ieee80211_ptr->iftype) {
2600 case NL80211_IFTYPE_AP:
2601 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2602 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2603 /* disallow mesh-specific things */
2604 if (params.plink_action)
2605 err = -EINVAL;
2606 break;
074ac8df 2607 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424 2608 case NL80211_IFTYPE_STATION:
07ba55d7 2609 /* disallow things sta doesn't support */
a97f4424
JB		 2610 if (params.plink_action)
2611 err = -EINVAL;
2612 if (params.vlan)
2613 err = -EINVAL;
07ba55d7
AN		 2614 if (params.supported_rates &&
2615 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2616 err = -EINVAL;
2617 if (params.ht_capa)
2618 err = -EINVAL;
2619 if (params.listen_interval >= 0)
2620 err = -EINVAL;
07ba55d7
AN		 2621 if (params.sta_flags_mask &
2622 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
2623 BIT(NL80211_STA_FLAG_TDLS_PEER)))
2624 err = -EINVAL;
2625 /* can't change the TDLS bit */
2626 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2627 (params.sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)))
a97f4424
JB		 2628 err = -EINVAL;
2629 break;
2630 case NL80211_IFTYPE_MESH_POINT:
2631 /* disallow things mesh doesn't support */
2632 if (params.vlan)
2633 err = -EINVAL;
2634 if (params.ht_capa)
2635 err = -EINVAL;
2636 if (params.listen_interval >= 0)
2637 err = -EINVAL;
b39c48fa
JC		 2638 if (params.sta_flags_mask &
2639 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
8429828e 2640 BIT(NL80211_STA_FLAG_MFP) |
b39c48fa 2641 BIT(NL80211_STA_FLAG_AUTHORIZED)))
a97f4424
JB		 2642 err = -EINVAL;
2643 break;
2644 default:
2645 err = -EINVAL;
034d655e
JB		 2646 }
2647
5727ef1b
JB		 2648 if (err)
2649 goto out;
2650
79c97e97 2651 if (!rdev->ops->change_station) {
5727ef1b
JB		 2652 err = -EOPNOTSUPP;
2653 goto out;
2654 }
2655
79c97e97 2656 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2657
2658 out:
2659 if (params.vlan)
2660 dev_put(params.vlan);
3b85875a 2661
5727ef1b
JB		 2662 return err;
2663}
2664
c75786c9
EP		 2665static struct nla_policy
2666nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
2667 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
2668 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
2669};
2670
5727ef1b
JB		 2671static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2672{
4c476991 2673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2674 int err;
4c476991 2675 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2676 struct station_parameters params;
2677 u8 *mac_addr = NULL;
2678
2679 memset(&params, 0, sizeof(params));
2680
2681 if (!info->attrs[NL80211_ATTR_MAC])
2682 return -EINVAL;
2683
5727ef1b
JB		 2684 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2685 return -EINVAL;
2686
2687 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2688 return -EINVAL;
2689
0e956c13
TLSC		 2690 if (!info->attrs[NL80211_ATTR_STA_AID])
2691 return -EINVAL;
2692
5727ef1b
JB		 2693 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2694 params.supported_rates =
2695 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2696 params.supported_rates_len =
2697 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2698 params.listen_interval =
2699 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2700
0e956c13
TLSC		 2701 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2702 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2703 return -EINVAL;
51b50fbe 2704
36aedc90
JM		 2705 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2706 params.ht_capa =
2707 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2708
96b78dff
JC		 2709 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2710 params.plink_action =
2711 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2712
eccb8e8f 2713 if (parse_station_flags(info, &params))
5727ef1b
JB		 2714 return -EINVAL;
2715
c75786c9 2716 /* parse WME attributes if sta is WME capable */
cedb5412 2717 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
cd32984f 2718 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
c75786c9
EP		 2719 info->attrs[NL80211_ATTR_STA_WME]) {
2720 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
2721 struct nlattr *nla;
2722
2723 nla = info->attrs[NL80211_ATTR_STA_WME];
2724 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
2725 nl80211_sta_wme_policy);
2726 if (err)
2727 return err;
2728
2729 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
2730 params.uapsd_queues =
2731 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
4319e193
JB		 2732 if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
2733 return -EINVAL;
c75786c9
EP		 2734
2735 if (tb[NL80211_STA_WME_MAX_SP])
2736 params.max_sp =
2737 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4319e193
JB		 2738
2739 if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
2740 return -EINVAL;
3b9ce80c
JB		 2741
2742 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
c75786c9
EP		 2743 }
2744
0e956c13 2745 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2746 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
96b78dff 2747 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
07ba55d7
AN		 2748 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO &&
2749 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
2750 return -EINVAL;
2751
2752 /*
2753 * Only managed stations can add TDLS peers, and only when the
2754 * wiphy supports external TDLS setup.
2755 */
2756 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_STATION &&
2757 !((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
2758 (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
2759 (rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)))
4c476991 2760 return -EINVAL;
0e956c13 2761
80b99899
JB		 2762 params.vlan = get_vlan(info, rdev);
2763 if (IS_ERR(params.vlan))
2764 return PTR_ERR(params.vlan);
a97f4424
JB		 2765
2766 /* validate settings */
2767 err = 0;
2768
79c97e97 2769 if (!rdev->ops->add_station) {
5727ef1b
JB		 2770 err = -EOPNOTSUPP;
2771 goto out;
2772 }
2773
79c97e97 2774 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2775
2776 out:
2777 if (params.vlan)
2778 dev_put(params.vlan);
5727ef1b
JB		 2779 return err;
2780}
2781
2782static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2783{
4c476991
JB		 2784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2785 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2786 u8 *mac_addr = NULL;
2787
2788 if (info->attrs[NL80211_ATTR_MAC])
2789 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2790
e80cf853 2791 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2792 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2793 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2794 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2795 return -EINVAL;
5727ef1b 2796
4c476991
JB		 2797 if (!rdev->ops->del_station)
2798 return -EOPNOTSUPP;
3b85875a 2799
4c476991 2800 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2801}
2802
2ec600d6
LCC		 2803static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2804 int flags, struct net_device *dev,
2805 u8 *dst, u8 *next_hop,
2806 struct mpath_info *pinfo)
2807{
2808 void *hdr;
2809 struct nlattr *pinfoattr;
2810
2811 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2812 if (!hdr)
2813 return -1;
2814
2815 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2816 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2817 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2818
f5ea9120
JB		 2819 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2820
2ec600d6
LCC		 2821 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2822 if (!pinfoattr)
2823 goto nla_put_failure;
2824 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2825 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2826 pinfo->frame_qlen);
d19b3bf6
RP		 2827 if (pinfo->filled & MPATH_INFO_SN)
2828 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2829 pinfo->sn);
2ec600d6
LCC		 2830 if (pinfo->filled & MPATH_INFO_METRIC)
2831 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2832 pinfo->metric);
2833 if (pinfo->filled & MPATH_INFO_EXPTIME)
2834 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2835 pinfo->exptime);
2836 if (pinfo->filled & MPATH_INFO_FLAGS)
2837 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2838 pinfo->flags);
2839 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2840 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2841 pinfo->discovery_timeout);
2842 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2843 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2844 pinfo->discovery_retries);
2845
2846 nla_nest_end(msg, pinfoattr);
2847
2848 return genlmsg_end(msg, hdr);
2849
2850 nla_put_failure:
bc3ed28c
TG		 2851 genlmsg_cancel(msg, hdr);
2852 return -EMSGSIZE;
2ec600d6
LCC		 2853}
2854
2855static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2856 struct netlink_callback *cb)
2ec600d6 2857{
2ec600d6
LCC		 2858 struct mpath_info pinfo;
2859 struct cfg80211_registered_device *dev;
bba95fef 2860 struct net_device *netdev;
2ec600d6
LCC		 2861 u8 dst[ETH_ALEN];
2862 u8 next_hop[ETH_ALEN];
bba95fef 2863 int path_idx = cb->args[1];
2ec600d6 2864 int err;
2ec600d6 2865
67748893
JB		 2866 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2867 if (err)
2868 return err;
bba95fef
JB		 2869
2870 if (!dev->ops->dump_mpath) {
eec60b03 2871 err = -EOPNOTSUPP;
bba95fef
JB		 2872 goto out_err;
2873 }
2874
eec60b03
JM		 2875 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2876 err = -EOPNOTSUPP;
0448b5fc 2877 goto out_err;
eec60b03
JM		 2878 }
2879
bba95fef
JB		 2880 while (1) {
2881 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2882 dst, next_hop, &pinfo);
2883 if (err == -ENOENT)
2ec600d6 2884 break;
bba95fef 2885 if (err)
3b85875a 2886 goto out_err;
2ec600d6 2887
bba95fef
JB		 2888 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2889 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2890 netdev, dst, next_hop,
2891 &pinfo) < 0)
2892 goto out;
2ec600d6 2893
bba95fef 2894 path_idx++;
2ec600d6 2895 }
2ec600d6 2896
2ec600d6 2897
bba95fef
JB		 2898 out:
2899 cb->args[1] = path_idx;
2900 err = skb->len;
bba95fef 2901 out_err:
67748893 2902 nl80211_finish_netdev_dump(dev);
bba95fef 2903 return err;
2ec600d6
LCC		 2904}
2905
2906static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2907{
4c476991 2908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2909 int err;
4c476991 2910 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2911 struct mpath_info pinfo;
2912 struct sk_buff *msg;
2913 u8 *dst = NULL;
2914 u8 next_hop[ETH_ALEN];
2915
2916 memset(&pinfo, 0, sizeof(pinfo));
2917
2918 if (!info->attrs[NL80211_ATTR_MAC])
2919 return -EINVAL;
2920
2921 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2922
4c476991
JB		 2923 if (!rdev->ops->get_mpath)
2924 return -EOPNOTSUPP;
2ec600d6 2925
4c476991
JB		 2926 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2927 return -EOPNOTSUPP;
eec60b03 2928
79c97e97 2929 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2930 if (err)
4c476991 2931 return err;
2ec600d6 2932
fd2120ca 2933 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2934 if (!msg)
4c476991 2935 return -ENOMEM;
2ec600d6
LCC		 2936
2937 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2938 dev, dst, next_hop, &pinfo) < 0) {
2939 nlmsg_free(msg);
2940 return -ENOBUFS;
2941 }
3b85875a 2942
4c476991 2943 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2944}
2945
2946static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2947{
4c476991
JB		 2948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2949 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2950 u8 *dst = NULL;
2951 u8 *next_hop = NULL;
2952
2953 if (!info->attrs[NL80211_ATTR_MAC])
2954 return -EINVAL;
2955
2956 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2957 return -EINVAL;
2958
2959 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2960 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2961
4c476991
JB		 2962 if (!rdev->ops->change_mpath)
2963 return -EOPNOTSUPP;
35a8efe1 2964
4c476991
JB		 2965 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2966 return -EOPNOTSUPP;
2ec600d6 2967
4c476991 2968 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2969}
4c476991 2970
2ec600d6
LCC		 2971static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2972{
4c476991
JB		 2973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2974 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2975 u8 *dst = NULL;
2976 u8 *next_hop = NULL;
2977
2978 if (!info->attrs[NL80211_ATTR_MAC])
2979 return -EINVAL;
2980
2981 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2982 return -EINVAL;
2983
2984 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2985 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2986
4c476991
JB		 2987 if (!rdev->ops->add_mpath)
2988 return -EOPNOTSUPP;
35a8efe1 2989
4c476991
JB		 2990 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2991 return -EOPNOTSUPP;
2ec600d6 2992
4c476991 2993 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2994}
2995
2996static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2997{
4c476991
JB		 2998 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2999 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 3000 u8 *dst = NULL;
3001
3002 if (info->attrs[NL80211_ATTR_MAC])
3003 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3004
4c476991
JB		 3005 if (!rdev->ops->del_mpath)
3006 return -EOPNOTSUPP;
3b85875a 3007
4c476991 3008 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 3009}
3010
9f1ba906
JM		 3011static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3012{
4c476991
JB		 3013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3014 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 3015 struct bss_parameters params;
3016
3017 memset(&params, 0, sizeof(params));
3018 /* default to not changing parameters */
3019 params.use_cts_prot = -1;
3020 params.use_short_preamble = -1;
3021 params.use_short_slot_time = -1;
fd8aaaf3 3022 params.ap_isolate = -1;
50b12f59 3023 params.ht_opmode = -1;
9f1ba906
JM		 3024
3025 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3026 params.use_cts_prot =
3027 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3028 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3029 params.use_short_preamble =
3030 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3031 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3032 params.use_short_slot_time =
3033 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 3034 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3035 params.basic_rates =
3036 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3037 params.basic_rates_len =
3038 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3039 }
fd8aaaf3
FF		 3040 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3041 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
50b12f59
HS		 3042 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3043 params.ht_opmode =
3044 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
9f1ba906 3045
4c476991
JB		 3046 if (!rdev->ops->change_bss)
3047 return -EOPNOTSUPP;
9f1ba906 3048
074ac8df 3049 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 3050 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3051 return -EOPNOTSUPP;
3b85875a 3052
4c476991 3053 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 3054}
3055
b54452b0 3056static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 3057 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3058 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3059 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3060 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3061 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3062 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3063};
3064
3065static int parse_reg_rule(struct nlattr *tb[],
3066 struct ieee80211_reg_rule *reg_rule)
3067{
3068 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
3069 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
3070
3071 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3072 return -EINVAL;
3073 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3074 return -EINVAL;
3075 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3076 return -EINVAL;
3077 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3078 return -EINVAL;
3079 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3080 return -EINVAL;
3081
3082 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3083
3084 freq_range->start_freq_khz =
3085 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3086 freq_range->end_freq_khz =
3087 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3088 freq_range->max_bandwidth_khz =
3089 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3090
3091 power_rule->max_eirp =
3092 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3093
3094 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3095 power_rule->max_antenna_gain =
3096 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3097
3098 return 0;
3099}
3100
3101static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3102{
3103 int r;
3104 char *data = NULL;
3105
80778f18
LR		 3106 /*
3107 * You should only get this when cfg80211 hasn't yet initialized
3108 * completely when built-in to the kernel right between the time
3109 * window between nl80211_init() and regulatory_init(), if that is
3110 * even possible.
3111 */
3112 mutex_lock(&cfg80211_mutex);
3113 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 3114 mutex_unlock(&cfg80211_mutex);
3115 return -EINPROGRESS;
80778f18 3116 }
fe33eb39 3117 mutex_unlock(&cfg80211_mutex);
80778f18 3118
fe33eb39
LR		 3119 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3120 return -EINVAL;
b2e1b302
LR		 3121
3122 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3123
fe33eb39
LR		 3124 r = regulatory_hint_user(data);
3125
b2e1b302
LR		 3126 return r;
3127}
3128
24bdd9f4 3129static int nl80211_get_mesh_config(struct sk_buff *skb,
29cbe68c 3130 struct genl_info *info)
93da9cc1 3131{
4c476991 3132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4c476991 3133 struct net_device *dev = info->user_ptr[1];
29cbe68c
JB		 3134 struct wireless_dev *wdev = dev->ieee80211_ptr;
3135 struct mesh_config cur_params;
3136 int err = 0;
93da9cc1 3137 void *hdr;
3138 struct nlattr *pinfoattr;
3139 struct sk_buff *msg;
3140
29cbe68c
JB		 3141 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3142 return -EOPNOTSUPP;
3143
24bdd9f4 3144 if (!rdev->ops->get_mesh_config)
4c476991 3145 return -EOPNOTSUPP;
f3f92586 3146
29cbe68c
JB		 3147 wdev_lock(wdev);
3148 /* If not connected, get default parameters */
3149 if (!wdev->mesh_id_len)
3150 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3151 else
24bdd9f4 3152 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3153 &cur_params);
3154 wdev_unlock(wdev);
3155
93da9cc1 3156 if (err)
4c476991 3157 return err;
93da9cc1 3158
3159 /* Draw up a netlink message to send back */
fd2120ca 3160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 3161 if (!msg)
3162 return -ENOMEM;
93da9cc1 3163 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
24bdd9f4 3164 NL80211_CMD_GET_MESH_CONFIG);
93da9cc1 3165 if (!hdr)
efe1cf0c 3166 goto out;
24bdd9f4 3167 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
93da9cc1 3168 if (!pinfoattr)
3169 goto nla_put_failure;
3170 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3171 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3172 cur_params.dot11MeshRetryTimeout);
3173 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3174 cur_params.dot11MeshConfirmTimeout);
3175 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3176 cur_params.dot11MeshHoldingTimeout);
3177 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3178 cur_params.dot11MeshMaxPeerLinks);
3179 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
3180 cur_params.dot11MeshMaxRetries);
3181 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
3182 cur_params.dot11MeshTTL);
45904f21
JC		 3183 NLA_PUT_U8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3184 cur_params.element_ttl);
93da9cc1 3185 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3186 cur_params.auto_open_plinks);
3187 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3188 cur_params.dot11MeshHWMPmaxPREQretries);
3189 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3190 cur_params.path_refresh_time);
3191 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3192 cur_params.min_discovery_timeout);
3193 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3194 cur_params.dot11MeshHWMPactivePathTimeout);
3195 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3196 cur_params.dot11MeshHWMPpreqMinInterval);
dca7e943
TP		 3197 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3198 cur_params.dot11MeshHWMPperrMinInterval);
93da9cc1 3199 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3200 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 3201 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3202 cur_params.dot11MeshHWMPRootMode);
0507e159
JC		 3203 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3204 cur_params.dot11MeshHWMPRannInterval);
16dd7267
JC		 3205 NLA_PUT_U8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3206 cur_params.dot11MeshGateAnnouncementProtocol);
93da9cc1 3207 nla_nest_end(msg, pinfoattr);
3208 genlmsg_end(msg, hdr);
4c476991 3209 return genlmsg_reply(msg, info);
93da9cc1 3210
3b85875a 3211 nla_put_failure:
93da9cc1 3212 genlmsg_cancel(msg, hdr);
efe1cf0c 3213 out:
d080e275 3214 nlmsg_free(msg);
4c476991 3215 return -ENOBUFS;
93da9cc1 3216}
3217
b54452b0 3218static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 3219 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3220 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3221 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3222 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3223 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3224 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
45904f21 3225 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
93da9cc1 3226 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3227
3228 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3229 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3230 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3231 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3232 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
dca7e943 3233 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
93da9cc1 3234 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
699403db 3235 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
0507e159 3236 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
16dd7267 3237 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
93da9cc1 3238};
3239
c80d545d
JC		 3240static const struct nla_policy
3241 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3242 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3243 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
15d5dda6 3244 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
581a8b0f 3245 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
c80d545d 3246 .len = IEEE80211_MAX_DATA_LEN },
b130e5ce 3247 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
c80d545d
JC		 3248};
3249
24bdd9f4 3250static int nl80211_parse_mesh_config(struct genl_info *info,
bd90fdcc
JB		 3251 struct mesh_config *cfg,
3252 u32 *mask_out)
93da9cc1 3253{
93da9cc1 3254 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
bd90fdcc 3255 u32 mask = 0;
93da9cc1 3256
bd90fdcc
JB		 3257#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3258do {\
3259 if (table[attr_num]) {\
3260 cfg->param = nla_fn(table[attr_num]); \
3261 mask |= (1 << (attr_num - 1)); \
3262 } \
3263} while (0);\
3264
3265
24bdd9f4 3266 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
93da9cc1 3267 return -EINVAL;
3268 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
24bdd9f4 3269 info->attrs[NL80211_ATTR_MESH_CONFIG],
bd90fdcc 3270 nl80211_meshconf_params_policy))
93da9cc1 3271 return -EINVAL;
3272
93da9cc1 3273 /* This makes sure that there aren't more than 32 mesh config
3274 * parameters (otherwise our bitfield scheme would not work.) */
3275 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3276
3277 /* Fill in the params struct */
93da9cc1 3278 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3279 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
3280 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3281 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
3282 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3283 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
3284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3285 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
3286 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3287 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
3288 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3289 mask, NL80211_MESHCONF_TTL, nla_get_u8);
45904f21
JC		 3290 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3291 mask, NL80211_MESHCONF_ELEMENT_TTL, nla_get_u8);
93da9cc1 3292 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3293 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
3294 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3295 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3296 nla_get_u8);
3297 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3298 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
3299 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3300 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3301 nla_get_u16);
3302 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
3303 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3304 nla_get_u32);
3305 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3306 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3307 nla_get_u16);
dca7e943
TP		 3308 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3309 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3310 nla_get_u16);
93da9cc1 3311 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3312 dot11MeshHWMPnetDiameterTraversalTime,
3313 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3314 nla_get_u16);
63c5723b
RP		 3315 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3316 dot11MeshHWMPRootMode, mask,
3317 NL80211_MESHCONF_HWMP_ROOTMODE,
3318 nla_get_u8);
0507e159
JC		 3319 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3320 dot11MeshHWMPRannInterval, mask,
3321 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3322 nla_get_u16);
16dd7267
JC		 3323 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3324 dot11MeshGateAnnouncementProtocol, mask,
3325 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3326 nla_get_u8);
bd90fdcc
JB		 3327 if (mask_out)
3328 *mask_out = mask;
c80d545d 3329
bd90fdcc
JB		 3330 return 0;
3331
3332#undef FILL_IN_MESH_PARAM_IF_SET
3333}
3334
c80d545d
JC		 3335static int nl80211_parse_mesh_setup(struct genl_info *info,
3336 struct mesh_setup *setup)
3337{
3338 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3339
3340 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3341 return -EINVAL;
3342 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3343 info->attrs[NL80211_ATTR_MESH_SETUP],
3344 nl80211_mesh_setup_params_policy))
3345 return -EINVAL;
3346
3347 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3348 setup->path_sel_proto =
3349 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3350 IEEE80211_PATH_PROTOCOL_VENDOR :
3351 IEEE80211_PATH_PROTOCOL_HWMP;
3352
3353 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3354 setup->path_metric =
3355 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3356 IEEE80211_PATH_METRIC_VENDOR :
3357 IEEE80211_PATH_METRIC_AIRTIME;
3358
581a8b0f
JC		 3359
3360 if (tb[NL80211_MESH_SETUP_IE]) {
c80d545d 3361 struct nlattr *ieattr =
581a8b0f 3362 tb[NL80211_MESH_SETUP_IE];
c80d545d
JC		 3363 if (!is_valid_ie_attr(ieattr))
3364 return -EINVAL;
581a8b0f
JC		 3365 setup->ie = nla_data(ieattr);
3366 setup->ie_len = nla_len(ieattr);
c80d545d 3367 }
b130e5ce
JC		 3368 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3369 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
c80d545d
JC		 3370
3371 return 0;
3372}
3373
24bdd9f4 3374static int nl80211_update_mesh_config(struct sk_buff *skb,
29cbe68c 3375 struct genl_info *info)
bd90fdcc
JB		 3376{
3377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3378 struct net_device *dev = info->user_ptr[1];
29cbe68c 3379 struct wireless_dev *wdev = dev->ieee80211_ptr;
bd90fdcc
JB		 3380 struct mesh_config cfg;
3381 u32 mask;
3382 int err;
3383
29cbe68c
JB		 3384 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3385 return -EOPNOTSUPP;
3386
24bdd9f4 3387 if (!rdev->ops->update_mesh_config)
bd90fdcc
JB		 3388 return -EOPNOTSUPP;
3389
24bdd9f4 3390 err = nl80211_parse_mesh_config(info, &cfg, &mask);
bd90fdcc
JB		 3391 if (err)
3392 return err;
3393
29cbe68c
JB		 3394 wdev_lock(wdev);
3395 if (!wdev->mesh_id_len)
3396 err = -ENOLINK;
3397
3398 if (!err)
24bdd9f4 3399 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
29cbe68c
JB		 3400 mask, &cfg);
3401
3402 wdev_unlock(wdev);
3403
3404 return err;
93da9cc1 3405}
3406
f130347c
LR		 3407static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3408{
3409 struct sk_buff *msg;
3410 void *hdr = NULL;
3411 struct nlattr *nl_reg_rules;
3412 unsigned int i;
3413 int err = -EINVAL;
3414
a1794390 3415 mutex_lock(&cfg80211_mutex);
f130347c
LR		 3416
3417 if (!cfg80211_regdomain)
3418 goto out;
3419
fd2120ca 3420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 3421 if (!msg) {
3422 err = -ENOBUFS;
3423 goto out;
3424 }
3425
3426 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3427 NL80211_CMD_GET_REG);
3428 if (!hdr)
efe1cf0c 3429 goto put_failure;
f130347c
LR		 3430
3431 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
3432 cfg80211_regdomain->alpha2);
8b60b078
LR		 3433 if (cfg80211_regdomain->dfs_region)
3434 NLA_PUT_U8(msg, NL80211_ATTR_DFS_REGION,
3435 cfg80211_regdomain->dfs_region);
f130347c
LR		 3436
3437 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3438 if (!nl_reg_rules)
3439 goto nla_put_failure;
3440
3441 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3442 struct nlattr *nl_reg_rule;
3443 const struct ieee80211_reg_rule *reg_rule;
3444 const struct ieee80211_freq_range *freq_range;
3445 const struct ieee80211_power_rule *power_rule;
3446
3447 reg_rule = &cfg80211_regdomain->reg_rules[i];
3448 freq_range = &reg_rule->freq_range;
3449 power_rule = &reg_rule->power_rule;
3450
3451 nl_reg_rule = nla_nest_start(msg, i);
3452 if (!nl_reg_rule)
3453 goto nla_put_failure;
3454
3455 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3456 reg_rule->flags);
3457 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
3458 freq_range->start_freq_khz);
3459 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
3460 freq_range->end_freq_khz);
3461 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3462 freq_range->max_bandwidth_khz);
3463 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3464 power_rule->max_antenna_gain);
3465 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3466 power_rule->max_eirp);
3467
3468 nla_nest_end(msg, nl_reg_rule);
3469 }
3470
3471 nla_nest_end(msg, nl_reg_rules);
3472
3473 genlmsg_end(msg, hdr);
134e6375 3474 err = genlmsg_reply(msg, info);
f130347c
LR		 3475 goto out;
3476
3477nla_put_failure:
3478 genlmsg_cancel(msg, hdr);
efe1cf0c 3479put_failure:
d080e275 3480 nlmsg_free(msg);
f130347c
LR		 3481 err = -EMSGSIZE;
3482out:
a1794390 3483 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 3484 return err;
3485}
3486
b2e1b302
LR		 3487static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3488{
3489 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3490 struct nlattr *nl_reg_rule;
3491 char *alpha2 = NULL;
3492 int rem_reg_rules = 0, r = 0;
3493 u32 num_rules = 0, rule_idx = 0, size_of_regd;
8b60b078 3494 u8 dfs_region = 0;
b2e1b302
LR		 3495 struct ieee80211_regdomain *rd = NULL;
3496
3497 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3498 return -EINVAL;
3499
3500 if (!info->attrs[NL80211_ATTR_REG_RULES])
3501 return -EINVAL;
3502
3503 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3504
8b60b078
LR		 3505 if (info->attrs[NL80211_ATTR_DFS_REGION])
3506 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
3507
b2e1b302
LR		 3508 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3509 rem_reg_rules) {
3510 num_rules++;
3511 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 3512 return -EINVAL;
b2e1b302
LR		 3513 }
3514
61405e97
LR		 3515 mutex_lock(&cfg80211_mutex);
3516
d0e18f83
LR		 3517 if (!reg_is_valid_request(alpha2)) {
3518 r = -EINVAL;
3519 goto bad_reg;
3520 }
b2e1b302
LR		 3521
3522 size_of_regd = sizeof(struct ieee80211_regdomain) +
3523 (num_rules * sizeof(struct ieee80211_reg_rule));
3524
3525 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 3526 if (!rd) {
3527 r = -ENOMEM;
3528 goto bad_reg;
3529 }
b2e1b302
LR		 3530
3531 rd->n_reg_rules = num_rules;
3532 rd->alpha2[0] = alpha2[0];
3533 rd->alpha2[1] = alpha2[1];
3534
8b60b078
LR		 3535 /*
3536 * Disable DFS master mode if the DFS region was
3537 * not supported or known on this kernel.
3538 */
3539 if (reg_supported_dfs_region(dfs_region))
3540 rd->dfs_region = dfs_region;
3541
b2e1b302
LR		 3542 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
3543 rem_reg_rules) {
3544 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
3545 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
3546 reg_rule_policy);
3547 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
3548 if (r)
3549 goto bad_reg;
3550
3551 rule_idx++;
3552
d0e18f83
LR		 3553 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
3554 r = -EINVAL;
b2e1b302 3555 goto bad_reg;
d0e18f83 3556 }
b2e1b302
LR		 3557 }
3558
3559 BUG_ON(rule_idx != num_rules);
3560
b2e1b302 3561 r = set_regdom(rd);
61405e97 3562
a1794390 3563 mutex_unlock(&cfg80211_mutex);
d0e18f83 3564
b2e1b302
LR		 3565 return r;
3566
d2372b31 3567 bad_reg:
61405e97 3568 mutex_unlock(&cfg80211_mutex);
b2e1b302 3569 kfree(rd);
d0e18f83 3570 return r;
b2e1b302
LR		 3571}
3572
83f5e2cf
JB		 3573static int validate_scan_freqs(struct nlattr *freqs)
3574{
3575 struct nlattr *attr1, *attr2;
3576 int n_channels = 0, tmp1, tmp2;
3577
3578 nla_for_each_nested(attr1, freqs, tmp1) {
3579 n_channels++;
3580 /*
3581 * Some hardware has a limited channel list for
3582 * scanning, and it is pretty much nonsensical
3583 * to scan for a channel twice, so disallow that
3584 * and don't require drivers to check that the
3585 * channel list they get isn't longer than what
3586 * they can scan, as long as they can scan all
3587 * the channels they registered at once.
3588 */
3589 nla_for_each_nested(attr2, freqs, tmp2)
3590 if (attr1 != attr2 &&
3591 nla_get_u32(attr1) == nla_get_u32(attr2))
3592 return 0;
3593 }
3594
3595 return n_channels;
3596}
3597
2a519311
JB		 3598static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
3599{
4c476991
JB		 3600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3601 struct net_device *dev = info->user_ptr[1];
2a519311 3602 struct cfg80211_scan_request *request;
2a519311
JB		 3603 struct nlattr *attr;
3604 struct wiphy *wiphy;
83f5e2cf 3605 int err, tmp, n_ssids = 0, n_channels, i;
70692ad2 3606 size_t ie_len;
2a519311 3607
f4a11bb0
JB		 3608 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3609 return -EINVAL;
3610
79c97e97 3611 wiphy = &rdev->wiphy;
2a519311 3612
4c476991
JB		 3613 if (!rdev->ops->scan)
3614 return -EOPNOTSUPP;
2a519311 3615
4c476991
JB		 3616 if (rdev->scan_req)
3617 return -EBUSY;
2a519311
JB		 3618
3619 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 3620 n_channels = validate_scan_freqs(
3621 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 3622 if (!n_channels)
3623 return -EINVAL;
2a519311 3624 } else {
34850ab2 3625 enum ieee80211_band band;
83f5e2cf
JB		 3626 n_channels = 0;
3627
2a519311
JB		 3628 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3629 if (wiphy->bands[band])
3630 n_channels += wiphy->bands[band]->n_channels;
3631 }
3632
3633 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3634 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
3635 n_ssids++;
3636
4c476991
JB		 3637 if (n_ssids > wiphy->max_scan_ssids)
3638 return -EINVAL;
2a519311 3639
70692ad2
JM		 3640 if (info->attrs[NL80211_ATTR_IE])
3641 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3642 else
3643 ie_len = 0;
3644
4c476991
JB		 3645 if (ie_len > wiphy->max_scan_ie_len)
3646 return -EINVAL;
18a83659 3647
2a519311 3648 request = kzalloc(sizeof(*request)
a2cd43c5
LC		 3649 + sizeof(*request->ssids) * n_ssids
3650 + sizeof(*request->channels) * n_channels
70692ad2 3651 + ie_len, GFP_KERNEL);
4c476991
JB		 3652 if (!request)
3653 return -ENOMEM;
2a519311 3654
2a519311 3655 if (n_ssids)
5ba63533 3656 request->ssids = (void *)&request->channels[n_channels];
2a519311 3657 request->n_ssids = n_ssids;
70692ad2
JM		 3658 if (ie_len) {
3659 if (request->ssids)
3660 request->ie = (void *)(request->ssids + n_ssids);
3661 else
3662 request->ie = (void *)(request->channels + n_channels);
3663 }
2a519311 3664
584991dc 3665 i = 0;
2a519311
JB		 3666 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3667 /* user specified, bail out if channel not found */
2a519311 3668 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3669 struct ieee80211_channel *chan;
3670
3671 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3672
3673 if (!chan) {
2a519311
JB		 3674 err = -EINVAL;
3675 goto out_free;
3676 }
584991dc
JB		 3677
3678 /* ignore disabled channels */
3679 if (chan->flags & IEEE80211_CHAN_DISABLED)
3680 continue;
3681
3682 request->channels[i] = chan;
2a519311
JB		 3683 i++;
3684 }
3685 } else {
34850ab2
JB		 3686 enum ieee80211_band band;
3687
2a519311 3688 /* all channels */
2a519311
JB		 3689 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3690 int j;
3691 if (!wiphy->bands[band])
3692 continue;
3693 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3694 struct ieee80211_channel *chan;
3695
3696 chan = &wiphy->bands[band]->channels[j];
3697
3698 if (chan->flags & IEEE80211_CHAN_DISABLED)
3699 continue;
3700
3701 request->channels[i] = chan;
2a519311
JB		 3702 i++;
3703 }
3704 }
3705 }
3706
584991dc
JB		 3707 if (!i) {
3708 err = -EINVAL;
3709 goto out_free;
3710 }
3711
3712 request->n_channels = i;
3713
2a519311
JB		 3714 i = 0;
3715 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3716 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
57a27e1d 3717 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
2a519311
JB		 3718 err = -EINVAL;
3719 goto out_free;
3720 }
57a27e1d 3721 request->ssids[i].ssid_len = nla_len(attr);
2a519311 3722 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2a519311
JB		 3723 i++;
3724 }
3725 }
3726
70692ad2
JM		 3727 if (info->attrs[NL80211_ATTR_IE]) {
3728 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3729 memcpy((void *)request->ie,
3730 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3731 request->ie_len);
3732 }
3733
34850ab2 3734 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
a401d2bb
JB		 3735 if (wiphy->bands[i])
3736 request->rates[i] =
3737 (1 << wiphy->bands[i]->n_bitrates) - 1;
34850ab2
JB		 3738
3739 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
3740 nla_for_each_nested(attr,
3741 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
3742 tmp) {
3743 enum ieee80211_band band = nla_type(attr);
3744
84404623 3745 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
34850ab2
JB		 3746 err = -EINVAL;
3747 goto out_free;
3748 }
3749 err = ieee80211_get_ratemask(wiphy->bands[band],
3750 nla_data(attr),
3751 nla_len(attr),
3752 &request->rates[band]);
3753 if (err)
3754 goto out_free;
3755 }
3756 }
3757
e9f935e3
RM		 3758 request->no_cck =
3759 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
3760
463d0183 3761 request->dev = dev;
79c97e97 3762 request->wiphy = &rdev->wiphy;
2a519311 3763
79c97e97
JB		 3764 rdev->scan_req = request;
3765 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3766
463d0183 3767 if (!err) {
79c97e97 3768 nl80211_send_scan_start(rdev, dev);
463d0183 3769 dev_hold(dev);
4c476991 3770 } else {
2a519311 3771 out_free:
79c97e97 3772 rdev->scan_req = NULL;
2a519311
JB		 3773 kfree(request);
3774 }
3b85875a 3775
2a519311
JB		 3776 return err;
3777}
3778
807f8a8c
LC		 3779static int nl80211_start_sched_scan(struct sk_buff *skb,
3780 struct genl_info *info)
3781{
3782 struct cfg80211_sched_scan_request *request;
3783 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3784 struct net_device *dev = info->user_ptr[1];
807f8a8c
LC		 3785 struct nlattr *attr;
3786 struct wiphy *wiphy;
a1f1c21c 3787 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
bbe6ad6d 3788 u32 interval;
807f8a8c
LC		 3789 enum ieee80211_band band;
3790 size_t ie_len;
a1f1c21c 3791 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
807f8a8c
LC		 3792
3793 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
3794 !rdev->ops->sched_scan_start)
3795 return -EOPNOTSUPP;
3796
3797 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3798 return -EINVAL;
3799
bbe6ad6d
LC		 3800 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
3801 return -EINVAL;
3802
3803 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
3804 if (interval == 0)
3805 return -EINVAL;
3806
807f8a8c
LC		 3807 wiphy = &rdev->wiphy;
3808
3809 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3810 n_channels = validate_scan_freqs(
3811 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
3812 if (!n_channels)
3813 return -EINVAL;
3814 } else {
3815 n_channels = 0;
3816
3817 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
3818 if (wiphy->bands[band])
3819 n_channels += wiphy->bands[band]->n_channels;
3820 }
3821
3822 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
3823 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3824 tmp)
3825 n_ssids++;
3826
93b6aa69 3827 if (n_ssids > wiphy->max_sched_scan_ssids)
807f8a8c
LC		 3828 return -EINVAL;
3829
a1f1c21c
LC		 3830 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
3831 nla_for_each_nested(attr,
3832 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3833 tmp)
3834 n_match_sets++;
3835
3836 if (n_match_sets > wiphy->max_match_sets)
3837 return -EINVAL;
3838
807f8a8c
LC		 3839 if (info->attrs[NL80211_ATTR_IE])
3840 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3841 else
3842 ie_len = 0;
3843
5a865bad 3844 if (ie_len > wiphy->max_sched_scan_ie_len)
807f8a8c
LC		 3845 return -EINVAL;
3846
c10841ca
LC		 3847 mutex_lock(&rdev->sched_scan_mtx);
3848
3849 if (rdev->sched_scan_req) {
3850 err = -EINPROGRESS;
3851 goto out;
3852 }
3853
807f8a8c 3854 request = kzalloc(sizeof(*request)
a2cd43c5 3855 + sizeof(*request->ssids) * n_ssids
a1f1c21c 3856 + sizeof(*request->match_sets) * n_match_sets
a2cd43c5 3857 + sizeof(*request->channels) * n_channels
807f8a8c 3858 + ie_len, GFP_KERNEL);
c10841ca
LC		 3859 if (!request) {
3860 err = -ENOMEM;
3861 goto out;
3862 }
807f8a8c
LC		 3863
3864 if (n_ssids)
3865 request->ssids = (void *)&request->channels[n_channels];
3866 request->n_ssids = n_ssids;
3867 if (ie_len) {
3868 if (request->ssids)
3869 request->ie = (void *)(request->ssids + n_ssids);
3870 else
3871 request->ie = (void *)(request->channels + n_channels);
3872 }
3873
a1f1c21c
LC		 3874 if (n_match_sets) {
3875 if (request->ie)
3876 request->match_sets = (void *)(request->ie + ie_len);
3877 else if (request->ssids)
3878 request->match_sets =
3879 (void *)(request->ssids + n_ssids);
3880 else
3881 request->match_sets =
3882 (void *)(request->channels + n_channels);
3883 }
3884 request->n_match_sets = n_match_sets;
3885
807f8a8c
LC		 3886 i = 0;
3887 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3888 /* user specified, bail out if channel not found */
3889 nla_for_each_nested(attr,
3890 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
3891 tmp) {
3892 struct ieee80211_channel *chan;
3893
3894 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3895
3896 if (!chan) {
3897 err = -EINVAL;
3898 goto out_free;
3899 }
3900
3901 /* ignore disabled channels */
3902 if (chan->flags & IEEE80211_CHAN_DISABLED)
3903 continue;
3904
3905 request->channels[i] = chan;
3906 i++;
3907 }
3908 } else {
3909 /* all channels */
3910 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3911 int j;
3912 if (!wiphy->bands[band])
3913 continue;
3914 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
3915 struct ieee80211_channel *chan;
3916
3917 chan = &wiphy->bands[band]->channels[j];
3918
3919 if (chan->flags & IEEE80211_CHAN_DISABLED)
3920 continue;
3921
3922 request->channels[i] = chan;
3923 i++;
3924 }
3925 }
3926 }
3927
3928 if (!i) {
3929 err = -EINVAL;
3930 goto out_free;
3931 }
3932
3933 request->n_channels = i;
3934
3935 i = 0;
3936 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3937 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
3938 tmp) {
57a27e1d 3939 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
807f8a8c
LC		 3940 err = -EINVAL;
3941 goto out_free;
3942 }
57a27e1d 3943 request->ssids[i].ssid_len = nla_len(attr);
807f8a8c
LC		 3944 memcpy(request->ssids[i].ssid, nla_data(attr),
3945 nla_len(attr));
807f8a8c
LC		 3946 i++;
3947 }
3948 }
3949
a1f1c21c
LC		 3950 i = 0;
3951 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
3952 nla_for_each_nested(attr,
3953 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
3954 tmp) {
3955 struct nlattr *ssid;
3956
3957 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
3958 nla_data(attr), nla_len(attr),
3959 nl80211_match_policy);
3960 ssid = tb[NL80211_ATTR_SCHED_SCAN_MATCH_SSID];
3961 if (ssid) {
3962 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
3963 err = -EINVAL;
3964 goto out_free;
3965 }
3966 memcpy(request->match_sets[i].ssid.ssid,
3967 nla_data(ssid), nla_len(ssid));
3968 request->match_sets[i].ssid.ssid_len =
3969 nla_len(ssid);
3970 }
3971 i++;
3972 }
3973 }
3974
807f8a8c
LC		 3975 if (info->attrs[NL80211_ATTR_IE]) {
3976 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3977 memcpy((void *)request->ie,
3978 nla_data(info->attrs[NL80211_ATTR_IE]),
3979 request->ie_len);
3980 }
3981
3982 request->dev = dev;
3983 request->wiphy = &rdev->wiphy;
bbe6ad6d 3984 request->interval = interval;
807f8a8c
LC		 3985
3986 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
3987 if (!err) {
3988 rdev->sched_scan_req = request;
3989 nl80211_send_sched_scan(rdev, dev,
3990 NL80211_CMD_START_SCHED_SCAN);
3991 goto out;
3992 }
3993
3994out_free:
3995 kfree(request);
3996out:
c10841ca 3997 mutex_unlock(&rdev->sched_scan_mtx);
807f8a8c
LC		 3998 return err;
3999}
4000
4001static int nl80211_stop_sched_scan(struct sk_buff *skb,
4002 struct genl_info *info)
4003{
4004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
c10841ca 4005 int err;
807f8a8c
LC		 4006
4007 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4008 !rdev->ops->sched_scan_stop)
4009 return -EOPNOTSUPP;
4010
c10841ca
LC		 4011 mutex_lock(&rdev->sched_scan_mtx);
4012 err = __cfg80211_stop_sched_scan(rdev, false);
4013 mutex_unlock(&rdev->sched_scan_mtx);
4014
4015 return err;
807f8a8c
LC		 4016}
4017
9720bb3a
JB		 4018static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4019 u32 seq, int flags,
2a519311 4020 struct cfg80211_registered_device *rdev,
48ab905d
JB		 4021 struct wireless_dev *wdev,
4022 struct cfg80211_internal_bss *intbss)
2a519311 4023{
48ab905d 4024 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 4025 void *hdr;
4026 struct nlattr *bss;
48ab905d
JB		 4027 int i;
4028
4029 ASSERT_WDEV_LOCK(wdev);
2a519311 4030
9720bb3a 4031 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
2a519311
JB		 4032 NL80211_CMD_NEW_SCAN_RESULTS);
4033 if (!hdr)
4034 return -1;
4035
9720bb3a
JB		 4036 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4037
f5ea9120 4038 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 4039 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 4040
4041 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4042 if (!bss)
4043 goto nla_put_failure;
4044 if (!is_zero_ether_addr(res->bssid))
4045 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
4046 if (res->information_elements && res->len_information_elements)
4047 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4048 res->len_information_elements,
4049 res->information_elements);
34a6eddb
JM		 4050 if (res->beacon_ies && res->len_beacon_ies &&
4051 res->beacon_ies != res->information_elements)
4052 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
4053 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 4054 if (res->tsf)
4055 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
4056 if (res->beacon_interval)
4057 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
4058 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
4059 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 4060 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
4061 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 4062
77965c97 4063 switch (rdev->wiphy.signal_type) {
2a519311
JB		 4064 case CFG80211_SIGNAL_TYPE_MBM:
4065 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
4066 break;
4067 case CFG80211_SIGNAL_TYPE_UNSPEC:
4068 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
4069 break;
4070 default:
4071 break;
4072 }
4073
48ab905d 4074 switch (wdev->iftype) {
074ac8df 4075 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 4076 case NL80211_IFTYPE_STATION:
4077 if (intbss == wdev->current_bss)
4078 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4079 NL80211_BSS_STATUS_ASSOCIATED);
4080 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
4081 if (intbss != wdev->auth_bsses[i])
4082 continue;
4083 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4084 NL80211_BSS_STATUS_AUTHENTICATED);
4085 break;
4086 }
4087 break;
4088 case NL80211_IFTYPE_ADHOC:
4089 if (intbss == wdev->current_bss)
4090 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
4091 NL80211_BSS_STATUS_IBSS_JOINED);
4092 break;
4093 default:
4094 break;
4095 }
4096
2a519311
JB		 4097 nla_nest_end(msg, bss);
4098
4099 return genlmsg_end(msg, hdr);
4100
4101 nla_put_failure:
4102 genlmsg_cancel(msg, hdr);
4103 return -EMSGSIZE;
4104}
4105
4106static int nl80211_dump_scan(struct sk_buff *skb,
4107 struct netlink_callback *cb)
4108{
48ab905d
JB		 4109 struct cfg80211_registered_device *rdev;
4110 struct net_device *dev;
2a519311 4111 struct cfg80211_internal_bss *scan;
48ab905d 4112 struct wireless_dev *wdev;
2a519311
JB		 4113 int start = cb->args[1], idx = 0;
4114 int err;
4115
67748893
JB		 4116 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4117 if (err)
4118 return err;
2a519311 4119
48ab905d 4120 wdev = dev->ieee80211_ptr;
2a519311 4121
48ab905d
JB		 4122 wdev_lock(wdev);
4123 spin_lock_bh(&rdev->bss_lock);
4124 cfg80211_bss_expire(rdev);
4125
9720bb3a
JB		 4126 cb->seq = rdev->bss_generation;
4127
48ab905d 4128 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 4129 if (++idx <= start)
4130 continue;
9720bb3a 4131 if (nl80211_send_bss(skb, cb,
2a519311 4132 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 4133 rdev, wdev, scan) < 0) {
2a519311 4134 idx--;
67748893 4135 break;
2a519311
JB		 4136 }
4137 }
4138
48ab905d
JB		 4139 spin_unlock_bh(&rdev->bss_lock);
4140 wdev_unlock(wdev);
2a519311
JB		 4141
4142 cb->args[1] = idx;
67748893 4143 nl80211_finish_netdev_dump(rdev);
2a519311 4144
67748893 4145 return skb->len;
2a519311
JB		 4146}
4147
61fa713c
HS		 4148static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4149 int flags, struct net_device *dev,
4150 struct survey_info *survey)
4151{
4152 void *hdr;
4153 struct nlattr *infoattr;
4154
61fa713c
HS		 4155 hdr = nl80211hdr_put(msg, pid, seq, flags,
4156 NL80211_CMD_NEW_SURVEY_RESULTS);
4157 if (!hdr)
4158 return -ENOMEM;
4159
4160 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
4161
4162 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4163 if (!infoattr)
4164 goto nla_put_failure;
4165
4166 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4167 survey->channel->center_freq);
4168 if (survey->filled & SURVEY_INFO_NOISE_DBM)
4169 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
4170 survey->noise);
17e5a808
FF		 4171 if (survey->filled & SURVEY_INFO_IN_USE)
4172 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 4173 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
4174 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4175 survey->channel_time);
4176 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
4177 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4178 survey->channel_time_busy);
4179 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
4180 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4181 survey->channel_time_ext_busy);
4182 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
4183 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4184 survey->channel_time_rx);
4185 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
4186 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4187 survey->channel_time_tx);
61fa713c
HS		 4188
4189 nla_nest_end(msg, infoattr);
4190
4191 return genlmsg_end(msg, hdr);
4192
4193 nla_put_failure:
4194 genlmsg_cancel(msg, hdr);
4195 return -EMSGSIZE;
4196}
4197
4198static int nl80211_dump_survey(struct sk_buff *skb,
4199 struct netlink_callback *cb)
4200{
4201 struct survey_info survey;
4202 struct cfg80211_registered_device *dev;
4203 struct net_device *netdev;
61fa713c
HS		 4204 int survey_idx = cb->args[1];
4205 int res;
4206
67748893
JB		 4207 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4208 if (res)
4209 return res;
61fa713c
HS		 4210
4211 if (!dev->ops->dump_survey) {
4212 res = -EOPNOTSUPP;
4213 goto out_err;
4214 }
4215
4216 while (1) {
180cdc79
LR		 4217 struct ieee80211_channel *chan;
4218
61fa713c
HS		 4219 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4220 &survey);
4221 if (res == -ENOENT)
4222 break;
4223 if (res)
4224 goto out_err;
4225
180cdc79
LR		 4226 /* Survey without a channel doesn't make sense */
4227 if (!survey.channel) {
4228 res = -EINVAL;
4229 goto out;
4230 }
4231
4232 chan = ieee80211_get_channel(&dev->wiphy,
4233 survey.channel->center_freq);
4234 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4235 survey_idx++;
4236 continue;
4237 }
4238
61fa713c
HS		 4239 if (nl80211_send_survey(skb,
4240 NETLINK_CB(cb->skb).pid,
4241 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4242 netdev,
4243 &survey) < 0)
4244 goto out;
4245 survey_idx++;
4246 }
4247
4248 out:
4249 cb->args[1] = survey_idx;
4250 res = skb->len;
4251 out_err:
67748893 4252 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 4253 return res;
4254}
4255
255e737e
JM		 4256static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4257{
b23aa676
SO		 4258 return auth_type <= NL80211_AUTHTYPE_MAX;
4259}
4260
4261static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4262{
4263 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4264 NL80211_WPA_VERSION_2));
4265}
4266
636a5d36
JM		 4267static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4268{
4c476991
JB		 4269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4270 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 4271 struct ieee80211_channel *chan;
4272 const u8 *bssid, *ssid, *ie = NULL;
4273 int err, ssid_len, ie_len = 0;
4274 enum nl80211_auth_type auth_type;
fffd0934 4275 struct key_parse key;
d5cdfacb 4276 bool local_state_change;
636a5d36 4277
f4a11bb0
JB		 4278 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4279 return -EINVAL;
4280
4281 if (!info->attrs[NL80211_ATTR_MAC])
4282 return -EINVAL;
4283
1778092e
JM		 4284 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4285 return -EINVAL;
4286
19957bb3
JB		 4287 if (!info->attrs[NL80211_ATTR_SSID])
4288 return -EINVAL;
4289
4290 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4291 return -EINVAL;
4292
fffd0934
JB		 4293 err = nl80211_parse_key(info, &key);
4294 if (err)
4295 return err;
4296
4297 if (key.idx >= 0) {
e31b8213
JB		 4298 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4299 return -EINVAL;
fffd0934
JB		 4300 if (!key.p.key || !key.p.key_len)
4301 return -EINVAL;
4302 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4303 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4304 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4305 key.p.key_len != WLAN_KEY_LEN_WEP104))
4306 return -EINVAL;
4307 if (key.idx > 4)
4308 return -EINVAL;
4309 } else {
4310 key.p.key_len = 0;
4311 key.p.key = NULL;
4312 }
4313
afea0b7a
JB		 4314 if (key.idx >= 0) {
4315 int i;
4316 bool ok = false;
4317 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4318 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4319 ok = true;
4320 break;
4321 }
4322 }
4c476991
JB		 4323 if (!ok)
4324 return -EINVAL;
afea0b7a
JB		 4325 }
4326
4c476991
JB		 4327 if (!rdev->ops->auth)
4328 return -EOPNOTSUPP;
636a5d36 4329
074ac8df 4330 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4332 return -EOPNOTSUPP;
eec60b03 4333
19957bb3 4334 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 4335 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 4336 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4337 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4338 return -EINVAL;
636a5d36 4339
19957bb3
JB		 4340 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4341 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4342
4343 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4344 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4345 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4346 }
4347
19957bb3 4348 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 4349 if (!nl80211_valid_auth_type(auth_type))
4350 return -EINVAL;
636a5d36 4351
d5cdfacb
JM		 4352 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4353
4c476991
JB		 4354 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4355 ssid, ssid_len, ie, ie_len,
4356 key.p.key, key.p.key_len, key.idx,
4357 local_state_change);
636a5d36
JM		 4358}
4359
c0692b8f
JB		 4360static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4361 struct genl_info *info,
3dc27d25
JB		 4362 struct cfg80211_crypto_settings *settings,
4363 int cipher_limit)
b23aa676 4364{
c0b2bbd8
JB		 4365 memset(settings, 0, sizeof(*settings));
4366
b23aa676
SO		 4367 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4368
c0692b8f
JB		 4369 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4370 u16 proto;
4371 proto = nla_get_u16(
4372 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4373 settings->control_port_ethertype = cpu_to_be16(proto);
4374 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4375 proto != ETH_P_PAE)
4376 return -EINVAL;
4377 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4378 settings->control_port_no_encrypt = true;
4379 } else
4380 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4381
b23aa676
SO		 4382 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4383 void *data;
4384 int len, i;
4385
4386 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4387 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4388 settings->n_ciphers_pairwise = len / sizeof(u32);
4389
4390 if (len % sizeof(u32))
4391 return -EINVAL;
4392
3dc27d25 4393 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 4394 return -EINVAL;
4395
4396 memcpy(settings->ciphers_pairwise, data, len);
4397
4398 for (i = 0; i < settings->n_ciphers_pairwise; i++)
38ba3c57
JM		 4399 if (!cfg80211_supported_cipher_suite(
4400 &rdev->wiphy,
b23aa676
SO		 4401 settings->ciphers_pairwise[i]))
4402 return -EINVAL;
4403 }
4404
4405 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4406 settings->cipher_group =
4407 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
38ba3c57
JM		 4408 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4409 settings->cipher_group))
b23aa676
SO		 4410 return -EINVAL;
4411 }
4412
4413 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4414 settings->wpa_versions =
4415 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4416 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4417 return -EINVAL;
4418 }
4419
4420 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4421 void *data;
6d30240e 4422 int len;
b23aa676
SO		 4423
4424 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4425 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4426 settings->n_akm_suites = len / sizeof(u32);
4427
4428 if (len % sizeof(u32))
4429 return -EINVAL;
4430
1b9ca027
JM		 4431 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4432 return -EINVAL;
4433
b23aa676 4434 memcpy(settings->akm_suites, data, len);
b23aa676
SO		 4435 }
4436
4437 return 0;
4438}
4439
636a5d36
JM		 4440static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4441{
4c476991
JB		 4442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4443 struct net_device *dev = info->user_ptr[1];
19957bb3 4444 struct cfg80211_crypto_settings crypto;
f444de05 4445 struct ieee80211_channel *chan;
3e5d7649 4446 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 4447 int err, ssid_len, ie_len = 0;
4448 bool use_mfp = false;
7e7c8926
BG		 4449 u32 flags = 0;
4450 struct ieee80211_ht_cap *ht_capa = NULL;
4451 struct ieee80211_ht_cap *ht_capa_mask = NULL;
636a5d36 4452
f4a11bb0
JB		 4453 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4454 return -EINVAL;
4455
4456 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 4457 !info->attrs[NL80211_ATTR_SSID] ||
4458 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 4459 return -EINVAL;
4460
4c476991
JB		 4461 if (!rdev->ops->assoc)
4462 return -EOPNOTSUPP;
636a5d36 4463
074ac8df 4464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4465 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4466 return -EOPNOTSUPP;
eec60b03 4467
19957bb3 4468 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4469
19957bb3
JB		 4470 chan = ieee80211_get_channel(&rdev->wiphy,
4471 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 4472 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4473 return -EINVAL;
636a5d36 4474
19957bb3
JB		 4475 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4476 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 4477
4478 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4479 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4480 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4481 }
4482
dc6382ce 4483 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 4484 enum nl80211_mfp mfp =
dc6382ce 4485 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 4486 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 4487 use_mfp = true;
4c476991
JB		 4488 else if (mfp != NL80211_MFP_NO)
4489 return -EINVAL;
dc6382ce
JM		 4490 }
4491
3e5d7649
JB		 4492 if (info->attrs[NL80211_ATTR_PREV_BSSID])
4493 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
4494
7e7c8926
BG		 4495 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
4496 flags |= ASSOC_REQ_DISABLE_HT;
4497
4498 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
4499 ht_capa_mask =
4500 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
4501
4502 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
4503 if (!ht_capa_mask)
4504 return -EINVAL;
4505 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4506 }
4507
c0692b8f 4508 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 4509 if (!err)
3e5d7649
JB		 4510 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
4511 ssid, ssid_len, ie, ie_len, use_mfp,
7e7c8926
BG		 4512 &crypto, flags, ht_capa,
4513 ht_capa_mask);
636a5d36 4514
636a5d36
JM		 4515 return err;
4516}
4517
4518static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
4519{
4c476991
JB		 4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
19957bb3 4522 const u8 *ie = NULL, *bssid;
4c476991 4523 int ie_len = 0;
19957bb3 4524 u16 reason_code;
d5cdfacb 4525 bool local_state_change;
636a5d36 4526
f4a11bb0
JB		 4527 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4528 return -EINVAL;
4529
4530 if (!info->attrs[NL80211_ATTR_MAC])
4531 return -EINVAL;
4532
4533 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4534 return -EINVAL;
4535
4c476991
JB		 4536 if (!rdev->ops->deauth)
4537 return -EOPNOTSUPP;
636a5d36 4538
074ac8df 4539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4541 return -EOPNOTSUPP;
eec60b03 4542
19957bb3 4543 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4544
19957bb3
JB		 4545 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4546 if (reason_code == 0) {
f4a11bb0 4547 /* Reason Code 0 is reserved */
4c476991 4548 return -EINVAL;
255e737e 4549 }
636a5d36
JM		 4550
4551 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4552 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4553 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4554 }
4555
d5cdfacb
JM		 4556 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4557
4c476991
JB		 4558 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
4559 local_state_change);
636a5d36
JM		 4560}
4561
4562static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
4563{
4c476991
JB		 4564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4565 struct net_device *dev = info->user_ptr[1];
19957bb3 4566 const u8 *ie = NULL, *bssid;
4c476991 4567 int ie_len = 0;
19957bb3 4568 u16 reason_code;
d5cdfacb 4569 bool local_state_change;
636a5d36 4570
f4a11bb0
JB		 4571 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4572 return -EINVAL;
4573
4574 if (!info->attrs[NL80211_ATTR_MAC])
4575 return -EINVAL;
4576
4577 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4578 return -EINVAL;
4579
4c476991
JB		 4580 if (!rdev->ops->disassoc)
4581 return -EOPNOTSUPP;
636a5d36 4582
074ac8df 4583 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4584 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4585 return -EOPNOTSUPP;
eec60b03 4586
19957bb3 4587 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 4588
19957bb3
JB		 4589 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4590 if (reason_code == 0) {
f4a11bb0 4591 /* Reason Code 0 is reserved */
4c476991 4592 return -EINVAL;
255e737e 4593 }
636a5d36
JM		 4594
4595 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 4596 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4597 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 4598 }
4599
d5cdfacb
JM		 4600 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4601
4c476991
JB		 4602 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
4603 local_state_change);
636a5d36
JM		 4604}
4605
dd5b4cc7
FF		 4606static bool
4607nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
4608 int mcast_rate[IEEE80211_NUM_BANDS],
4609 int rateval)
4610{
4611 struct wiphy *wiphy = &rdev->wiphy;
4612 bool found = false;
4613 int band, i;
4614
4615 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4616 struct ieee80211_supported_band *sband;
4617
4618 sband = wiphy->bands[band];
4619 if (!sband)
4620 continue;
4621
4622 for (i = 0; i < sband->n_bitrates; i++) {
4623 if (sband->bitrates[i].bitrate == rateval) {
4624 mcast_rate[band] = i + 1;
4625 found = true;
4626 break;
4627 }
4628 }
4629 }
4630
4631 return found;
4632}
4633
04a773ad
JB		 4634static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
4635{
4c476991
JB		 4636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4637 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 4638 struct cfg80211_ibss_params ibss;
4639 struct wiphy *wiphy;
fffd0934 4640 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 4641 int err;
4642
8e30bc55
JB		 4643 memset(&ibss, 0, sizeof(ibss));
4644
04a773ad
JB		 4645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4646 return -EINVAL;
4647
4648 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4649 !info->attrs[NL80211_ATTR_SSID] ||
4650 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4651 return -EINVAL;
4652
8e30bc55
JB		 4653 ibss.beacon_interval = 100;
4654
4655 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
4656 ibss.beacon_interval =
4657 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
4658 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
4659 return -EINVAL;
4660 }
4661
4c476991
JB		 4662 if (!rdev->ops->join_ibss)
4663 return -EOPNOTSUPP;
04a773ad 4664
4c476991
JB		 4665 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4666 return -EOPNOTSUPP;
04a773ad 4667
79c97e97 4668 wiphy = &rdev->wiphy;
04a773ad 4669
39193498 4670 if (info->attrs[NL80211_ATTR_MAC]) {
04a773ad 4671 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
39193498
JB		 4672
4673 if (!is_valid_ether_addr(ibss.bssid))
4674 return -EINVAL;
4675 }
04a773ad
JB		 4676 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4677 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4678
4679 if (info->attrs[NL80211_ATTR_IE]) {
4680 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4681 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4682 }
4683
54858ee5
AS		 4684 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4685 enum nl80211_channel_type channel_type;
4686
4687 channel_type = nla_get_u32(
4688 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4689 if (channel_type != NL80211_CHAN_NO_HT &&
4690 channel_type != NL80211_CHAN_HT20 &&
4691 channel_type != NL80211_CHAN_HT40MINUS &&
4692 channel_type != NL80211_CHAN_HT40PLUS)
4693 return -EINVAL;
4694
4695 if (channel_type != NL80211_CHAN_NO_HT &&
4696 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
4697 return -EINVAL;
4698
4699 ibss.channel_type = channel_type;
4700 } else {
4701 ibss.channel_type = NL80211_CHAN_NO_HT;
4702 }
4703
4704 ibss.channel = rdev_freq_to_chan(rdev,
4705 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
4706 ibss.channel_type);
04a773ad
JB		 4707 if (!ibss.channel ||
4708 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 4709 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
4710 return -EINVAL;
04a773ad 4711
54858ee5
AS		 4712 /* Both channels should be able to initiate communication */
4713 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
4714 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
4715 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
4716 ibss.channel_type))
4717 return -EINVAL;
4718
04a773ad 4719 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 4720 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
4721
fbd2c8dc
TP		 4722 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4723 u8 *rates =
4724 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4725 int n_rates =
4726 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4727 struct ieee80211_supported_band *sband =
4728 wiphy->bands[ibss.channel->band];
34850ab2 4729 int err;
fbd2c8dc 4730
34850ab2
JB		 4731 err = ieee80211_get_ratemask(sband, rates, n_rates,
4732 &ibss.basic_rates);
4733 if (err)
4734 return err;
fbd2c8dc 4735 }
dd5b4cc7
FF		 4736
4737 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
4738 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
4739 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
4740 return -EINVAL;
fbd2c8dc 4741
4c476991
JB		 4742 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4743 connkeys = nl80211_parse_connkeys(rdev,
4744 info->attrs[NL80211_ATTR_KEYS]);
4745 if (IS_ERR(connkeys))
4746 return PTR_ERR(connkeys);
4747 }
04a773ad 4748
4c476991 4749 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 4750 if (err)
4751 kfree(connkeys);
04a773ad
JB		 4752 return err;
4753}
4754
4755static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
4756{
4c476991
JB		 4757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4758 struct net_device *dev = info->user_ptr[1];
04a773ad 4759
4c476991
JB		 4760 if (!rdev->ops->leave_ibss)
4761 return -EOPNOTSUPP;
04a773ad 4762
4c476991
JB		 4763 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
4764 return -EOPNOTSUPP;
04a773ad 4765
4c476991 4766 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 4767}
4768
aff89a9b
JB		 4769#ifdef CONFIG_NL80211_TESTMODE
4770static struct genl_multicast_group nl80211_testmode_mcgrp = {
4771 .name = "testmode",
4772};
4773
4774static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
4775{
4c476991 4776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 4777 int err;
4778
4779 if (!info->attrs[NL80211_ATTR_TESTDATA])
4780 return -EINVAL;
4781
aff89a9b
JB		 4782 err = -EOPNOTSUPP;
4783 if (rdev->ops->testmode_cmd) {
4784 rdev->testmode_info = info;
4785 err = rdev->ops->testmode_cmd(&rdev->wiphy,
4786 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
4787 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
4788 rdev->testmode_info = NULL;
4789 }
4790
aff89a9b
JB		 4791 return err;
4792}
4793
71063f0e
WYG		 4794static int nl80211_testmode_dump(struct sk_buff *skb,
4795 struct netlink_callback *cb)
4796{
00918d33 4797 struct cfg80211_registered_device *rdev;
71063f0e
WYG		 4798 int err;
4799 long phy_idx;
4800 void *data = NULL;
4801 int data_len = 0;
4802
4803 if (cb->args[0]) {
4804 /*
4805 * 0 is a valid index, but not valid for args[0],
4806 * so we need to offset by 1.
4807 */
4808 phy_idx = cb->args[0] - 1;
4809 } else {
4810 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
4811 nl80211_fam.attrbuf, nl80211_fam.maxattr,
4812 nl80211_policy);
4813 if (err)
4814 return err;
00918d33
JB		 4815 if (nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]) {
4816 phy_idx = nla_get_u32(
4817 nl80211_fam.attrbuf[NL80211_ATTR_WIPHY]);
4818 } else {
4819 struct net_device *netdev;
4820
4821 err = get_rdev_dev_by_ifindex(sock_net(skb->sk),
4822 nl80211_fam.attrbuf,
4823 &rdev, &netdev);
4824 if (err)
4825 return err;
4826 dev_put(netdev);
4827 phy_idx = rdev->wiphy_idx;
4828 cfg80211_unlock_rdev(rdev);
4829 }
71063f0e
WYG		 4830 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
4831 cb->args[1] =
4832 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
4833 }
4834
4835 if (cb->args[1]) {
4836 data = nla_data((void *)cb->args[1]);
4837 data_len = nla_len((void *)cb->args[1]);
4838 }
4839
4840 mutex_lock(&cfg80211_mutex);
00918d33
JB		 4841 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
4842 if (!rdev) {
71063f0e
WYG		 4843 mutex_unlock(&cfg80211_mutex);
4844 return -ENOENT;
4845 }
00918d33 4846 cfg80211_lock_rdev(rdev);
71063f0e
WYG		 4847 mutex_unlock(&cfg80211_mutex);
4848
00918d33 4849 if (!rdev->ops->testmode_dump) {
71063f0e
WYG		 4850 err = -EOPNOTSUPP;
4851 goto out_err;
4852 }
4853
4854 while (1) {
4855 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
4856 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4857 NL80211_CMD_TESTMODE);
4858 struct nlattr *tmdata;
4859
00918d33 4860 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx) < 0) {
71063f0e
WYG		 4861 genlmsg_cancel(skb, hdr);
4862 break;
4863 }
4864
4865 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4866 if (!tmdata) {
4867 genlmsg_cancel(skb, hdr);
4868 break;
4869 }
00918d33
JB		 4870 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
4871 data, data_len);
71063f0e
WYG		 4872 nla_nest_end(skb, tmdata);
4873
4874 if (err == -ENOBUFS || err == -ENOENT) {
4875 genlmsg_cancel(skb, hdr);
4876 break;
4877 } else if (err) {
4878 genlmsg_cancel(skb, hdr);
4879 goto out_err;
4880 }
4881
4882 genlmsg_end(skb, hdr);
4883 }
4884
4885 err = skb->len;
4886 /* see above */
4887 cb->args[0] = phy_idx + 1;
4888 out_err:
00918d33 4889 cfg80211_unlock_rdev(rdev);
71063f0e
WYG		 4890 return err;
4891}
4892
aff89a9b
JB		 4893static struct sk_buff *
4894__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
4895 int approxlen, u32 pid, u32 seq, gfp_t gfp)
4896{
4897 struct sk_buff *skb;
4898 void *hdr;
4899 struct nlattr *data;
4900
4901 skb = nlmsg_new(approxlen + 100, gfp);
4902 if (!skb)
4903 return NULL;
4904
4905 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
4906 if (!hdr) {
4907 kfree_skb(skb);
4908 return NULL;
4909 }
4910
4911 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
4912 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
4913
4914 ((void **)skb->cb)[0] = rdev;
4915 ((void **)skb->cb)[1] = hdr;
4916 ((void **)skb->cb)[2] = data;
4917
4918 return skb;
4919
4920 nla_put_failure:
4921 kfree_skb(skb);
4922 return NULL;
4923}
4924
4925struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
4926 int approxlen)
4927{
4928 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4929
4930 if (WARN_ON(!rdev->testmode_info))
4931 return NULL;
4932
4933 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
4934 rdev->testmode_info->snd_pid,
4935 rdev->testmode_info->snd_seq,
4936 GFP_KERNEL);
4937}
4938EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
4939
4940int cfg80211_testmode_reply(struct sk_buff *skb)
4941{
4942 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
4943 void *hdr = ((void **)skb->cb)[1];
4944 struct nlattr *data = ((void **)skb->cb)[2];
4945
4946 if (WARN_ON(!rdev->testmode_info)) {
4947 kfree_skb(skb);
4948 return -EINVAL;
4949 }
4950
4951 nla_nest_end(skb, data);
4952 genlmsg_end(skb, hdr);
4953 return genlmsg_reply(skb, rdev->testmode_info);
4954}
4955EXPORT_SYMBOL(cfg80211_testmode_reply);
4956
4957struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4958 int approxlen, gfp_t gfp)
4959{
4960 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4961
4962 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4963}
4964EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4965
4966void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4967{
4968 void *hdr = ((void **)skb->cb)[1];
4969 struct nlattr *data = ((void **)skb->cb)[2];
4970
4971 nla_nest_end(skb, data);
4972 genlmsg_end(skb, hdr);
4973 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4974}
4975EXPORT_SYMBOL(cfg80211_testmode_event);
4976#endif
4977
b23aa676
SO		 4978static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4979{
4c476991
JB		 4980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4981 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 4982 struct cfg80211_connect_params connect;
4983 struct wiphy *wiphy;
fffd0934 4984 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4985 int err;
4986
4987 memset(&connect, 0, sizeof(connect));
4988
4989 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4990 return -EINVAL;
4991
4992 if (!info->attrs[NL80211_ATTR_SSID] ||
4993 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4994 return -EINVAL;
4995
4996 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4997 connect.auth_type =
4998 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4999 if (!nl80211_valid_auth_type(connect.auth_type))
5000 return -EINVAL;
5001 } else
5002 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5003
5004 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5005
c0692b8f 5006 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 5007 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 5008 if (err)
5009 return err;
b23aa676 5010
074ac8df 5011 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5012 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5013 return -EOPNOTSUPP;
b23aa676 5014
79c97e97 5015 wiphy = &rdev->wiphy;
b23aa676 5016
b23aa676
SO		 5017 if (info->attrs[NL80211_ATTR_MAC])
5018 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5019 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5020 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5021
5022 if (info->attrs[NL80211_ATTR_IE]) {
5023 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5024 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5025 }
5026
5027 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5028 connect.channel =
5029 ieee80211_get_channel(wiphy,
5030 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5031 if (!connect.channel ||
4c476991
JB		 5032 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5033 return -EINVAL;
b23aa676
SO		 5034 }
5035
fffd0934
JB		 5036 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5037 connkeys = nl80211_parse_connkeys(rdev,
5038 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 5039 if (IS_ERR(connkeys))
5040 return PTR_ERR(connkeys);
fffd0934
JB		 5041 }
5042
7e7c8926
BG		 5043 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5044 connect.flags |= ASSOC_REQ_DISABLE_HT;
5045
5046 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5047 memcpy(&connect.ht_capa_mask,
5048 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5049 sizeof(connect.ht_capa_mask));
5050
5051 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5052 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5053 return -EINVAL;
5054 memcpy(&connect.ht_capa,
5055 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5056 sizeof(connect.ht_capa));
5057 }
5058
fffd0934 5059 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 5060 if (err)
5061 kfree(connkeys);
b23aa676
SO		 5062 return err;
5063}
5064
5065static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5066{
4c476991
JB		 5067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5068 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 5069 u16 reason;
5070
5071 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5072 reason = WLAN_REASON_DEAUTH_LEAVING;
5073 else
5074 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5075
5076 if (reason == 0)
5077 return -EINVAL;
5078
074ac8df 5079 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5080 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5081 return -EOPNOTSUPP;
b23aa676 5082
4c476991 5083 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 5084}
5085
463d0183
JB		 5086static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5087{
4c476991 5088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 5089 struct net *net;
5090 int err;
5091 u32 pid;
5092
5093 if (!info->attrs[NL80211_ATTR_PID])
5094 return -EINVAL;
5095
5096 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5097
463d0183 5098 net = get_net_ns_by_pid(pid);
4c476991
JB		 5099 if (IS_ERR(net))
5100 return PTR_ERR(net);
463d0183
JB		 5101
5102 err = 0;
5103
5104 /* check if anything to do */
4c476991
JB		 5105 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5106 err = cfg80211_switch_netns(rdev, net);
463d0183 5107
463d0183 5108 put_net(net);
463d0183
JB		 5109 return err;
5110}
5111
67fbb16b
SO		 5112static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5113{
4c476991 5114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 5115 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5116 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 5117 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 5118 struct cfg80211_pmksa pmksa;
5119
5120 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5121
5122 if (!info->attrs[NL80211_ATTR_MAC])
5123 return -EINVAL;
5124
5125 if (!info->attrs[NL80211_ATTR_PMKID])
5126 return -EINVAL;
5127
67fbb16b
SO		 5128 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5129 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5130
074ac8df 5131 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5132 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5133 return -EOPNOTSUPP;
67fbb16b
SO		 5134
5135 switch (info->genlhdr->cmd) {
5136 case NL80211_CMD_SET_PMKSA:
5137 rdev_ops = rdev->ops->set_pmksa;
5138 break;
5139 case NL80211_CMD_DEL_PMKSA:
5140 rdev_ops = rdev->ops->del_pmksa;
5141 break;
5142 default:
5143 WARN_ON(1);
5144 break;
5145 }
5146
4c476991
JB		 5147 if (!rdev_ops)
5148 return -EOPNOTSUPP;
67fbb16b 5149
4c476991 5150 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 5151}
5152
5153static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5154{
4c476991
JB		 5155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5156 struct net_device *dev = info->user_ptr[1];
67fbb16b 5157
074ac8df 5158 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5159 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5160 return -EOPNOTSUPP;
67fbb16b 5161
4c476991
JB		 5162 if (!rdev->ops->flush_pmksa)
5163 return -EOPNOTSUPP;
67fbb16b 5164
4c476991 5165 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 5166}
5167
109086ce
AN		 5168static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5169{
5170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5171 struct net_device *dev = info->user_ptr[1];
5172 u8 action_code, dialog_token;
5173 u16 status_code;
5174 u8 *peer;
5175
5176 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5177 !rdev->ops->tdls_mgmt)
5178 return -EOPNOTSUPP;
5179
5180 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5181 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5182 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5183 !info->attrs[NL80211_ATTR_IE] ||
5184 !info->attrs[NL80211_ATTR_MAC])
5185 return -EINVAL;
5186
5187 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5188 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5189 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5190 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5191
5192 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5193 dialog_token, status_code,
5194 nla_data(info->attrs[NL80211_ATTR_IE]),
5195 nla_len(info->attrs[NL80211_ATTR_IE]));
5196}
5197
5198static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5199{
5200 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5201 struct net_device *dev = info->user_ptr[1];
5202 enum nl80211_tdls_operation operation;
5203 u8 *peer;
5204
5205 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5206 !rdev->ops->tdls_oper)
5207 return -EOPNOTSUPP;
5208
5209 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5210 !info->attrs[NL80211_ATTR_MAC])
5211 return -EINVAL;
5212
5213 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5214 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5215
5216 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5217}
5218
9588bbd5
JM		 5219static int nl80211_remain_on_channel(struct sk_buff *skb,
5220 struct genl_info *info)
5221{
4c476991
JB		 5222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5223 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 5224 struct ieee80211_channel *chan;
5225 struct sk_buff *msg;
5226 void *hdr;
5227 u64 cookie;
5228 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5229 u32 freq, duration;
5230 int err;
5231
5232 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5233 !info->attrs[NL80211_ATTR_DURATION])
5234 return -EINVAL;
5235
5236 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5237
5238 /*
5239 * We should be on that channel for at least one jiffie,
5240 * and more than 5 seconds seems excessive.
5241 */
a293911d
JB		 5242 if (!duration || !msecs_to_jiffies(duration) ||
5243 duration > rdev->wiphy.max_remain_on_channel_duration)
9588bbd5
JM		 5244 return -EINVAL;
5245
7c4ef712
JB		 5246 if (!rdev->ops->remain_on_channel ||
5247 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
4c476991 5248 return -EOPNOTSUPP;
9588bbd5 5249
9588bbd5
JM		 5250 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5251 channel_type = nla_get_u32(
5252 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5253 if (channel_type != NL80211_CHAN_NO_HT &&
5254 channel_type != NL80211_CHAN_HT20 &&
5255 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5256 channel_type != NL80211_CHAN_HT40MINUS)
5257 return -EINVAL;
9588bbd5
JM		 5258 }
5259
5260 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5261 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5262 if (chan == NULL)
5263 return -EINVAL;
9588bbd5
JM		 5264
5265 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5266 if (!msg)
5267 return -ENOMEM;
9588bbd5
JM		 5268
5269 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5270 NL80211_CMD_REMAIN_ON_CHANNEL);
5271
5272 if (IS_ERR(hdr)) {
5273 err = PTR_ERR(hdr);
5274 goto free_msg;
5275 }
5276
5277 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5278 channel_type, duration, &cookie);
5279
5280 if (err)
5281 goto free_msg;
5282
5283 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5284
5285 genlmsg_end(msg, hdr);
4c476991
JB		 5286
5287 return genlmsg_reply(msg, info);
9588bbd5
JM		 5288
5289 nla_put_failure:
5290 err = -ENOBUFS;
5291 free_msg:
5292 nlmsg_free(msg);
9588bbd5
JM		 5293 return err;
5294}
5295
5296static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5297 struct genl_info *info)
5298{
4c476991
JB		 5299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5300 struct net_device *dev = info->user_ptr[1];
9588bbd5 5301 u64 cookie;
9588bbd5
JM		 5302
5303 if (!info->attrs[NL80211_ATTR_COOKIE])
5304 return -EINVAL;
5305
4c476991
JB		 5306 if (!rdev->ops->cancel_remain_on_channel)
5307 return -EOPNOTSUPP;
9588bbd5 5308
9588bbd5
JM		 5309 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5310
4c476991 5311 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 5312}
5313
13ae75b1
JM		 5314static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5315 u8 *rates, u8 rates_len)
5316{
5317 u8 i;
5318 u32 mask = 0;
5319
5320 for (i = 0; i < rates_len; i++) {
5321 int rate = (rates[i] & 0x7f) * 5;
5322 int ridx;
5323 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5324 struct ieee80211_rate *srate =
5325 &sband->bitrates[ridx];
5326 if (rate == srate->bitrate) {
5327 mask |= 1 << ridx;
5328 break;
5329 }
5330 }
5331 if (ridx == sband->n_bitrates)
5332 return 0; /* rate not found */
5333 }
5334
5335 return mask;
5336}
5337
b54452b0 5338static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 5339 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5340 .len = NL80211_MAX_SUPP_RATES },
5341};
5342
5343static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5344 struct genl_info *info)
5345{
5346 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 5347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 5348 struct cfg80211_bitrate_mask mask;
4c476991
JB		 5349 int rem, i;
5350 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 5351 struct nlattr *tx_rates;
5352 struct ieee80211_supported_band *sband;
5353
5354 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5355 return -EINVAL;
5356
4c476991
JB		 5357 if (!rdev->ops->set_bitrate_mask)
5358 return -EOPNOTSUPP;
13ae75b1
JM		 5359
5360 memset(&mask, 0, sizeof(mask));
5361 /* Default to all rates enabled */
5362 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5363 sband = rdev->wiphy.bands[i];
5364 mask.control[i].legacy =
5365 sband ? (1 << sband->n_bitrates) - 1 : 0;
5366 }
5367
5368 /*
5369 * The nested attribute uses enum nl80211_band as the index. This maps
5370 * directly to the enum ieee80211_band values used in cfg80211.
5371 */
5372 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5373 {
5374 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 5375 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5376 return -EINVAL;
13ae75b1 5377 sband = rdev->wiphy.bands[band];
4c476991
JB		 5378 if (sband == NULL)
5379 return -EINVAL;
13ae75b1
JM		 5380 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5381 nla_len(tx_rates), nl80211_txattr_policy);
5382 if (tb[NL80211_TXRATE_LEGACY]) {
5383 mask.control[band].legacy = rateset_to_mask(
5384 sband,
5385 nla_data(tb[NL80211_TXRATE_LEGACY]),
5386 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 5387 if (mask.control[band].legacy == 0)
5388 return -EINVAL;
13ae75b1
JM		 5389 }
5390 }
5391
4c476991 5392 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 5393}
5394
2e161f78 5395static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5396{
4c476991
JB		 5397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5398 struct net_device *dev = info->user_ptr[1];
2e161f78 5399 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 5400
5401 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5402 return -EINVAL;
5403
2e161f78
JB		 5404 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5405 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 5406
9d38d85d 5407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5410 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5412 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5413 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5414 return -EOPNOTSUPP;
026331c4
JM		 5415
5416 /* not much point in registering if we can't reply */
4c476991
JB		 5417 if (!rdev->ops->mgmt_tx)
5418 return -EOPNOTSUPP;
026331c4 5419
4c476991 5420 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 5421 frame_type,
026331c4
JM		 5422 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
5423 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 5424}
5425
2e161f78 5426static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 5427{
4c476991
JB		 5428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5429 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 5430 struct ieee80211_channel *chan;
5431 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 5432 bool channel_type_valid = false;
026331c4
JM		 5433 u32 freq;
5434 int err;
d64d373f 5435 void *hdr = NULL;
026331c4 5436 u64 cookie;
e247bd90 5437 struct sk_buff *msg = NULL;
f7ca38df 5438 unsigned int wait = 0;
e247bd90
JB		 5439 bool offchan, no_cck, dont_wait_for_ack;
5440
5441 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
026331c4
JM		 5442
5443 if (!info->attrs[NL80211_ATTR_FRAME] ||
5444 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5445 return -EINVAL;
5446
4c476991
JB		 5447 if (!rdev->ops->mgmt_tx)
5448 return -EOPNOTSUPP;
026331c4 5449
9d38d85d 5450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 5451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 5452 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5453 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5454 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
c7108a71 5455 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 5456 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5457 return -EOPNOTSUPP;
026331c4 5458
f7ca38df 5459 if (info->attrs[NL80211_ATTR_DURATION]) {
7c4ef712 5460 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
f7ca38df
JB		 5461 return -EINVAL;
5462 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5463 }
5464
026331c4
JM		 5465 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5466 channel_type = nla_get_u32(
5467 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
5468 if (channel_type != NL80211_CHAN_NO_HT &&
5469 channel_type != NL80211_CHAN_HT20 &&
5470 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 5471 channel_type != NL80211_CHAN_HT40MINUS)
5472 return -EINVAL;
252aa631 5473 channel_type_valid = true;
026331c4
JM		 5474 }
5475
f7ca38df
JB		 5476 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
5477
7c4ef712
JB		 5478 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
5479 return -EINVAL;
5480
e9f935e3
RM		 5481 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5482
026331c4
JM		 5483 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5484 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 5485 if (chan == NULL)
5486 return -EINVAL;
026331c4 5487
e247bd90
JB		 5488 if (!dont_wait_for_ack) {
5489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5490 if (!msg)
5491 return -ENOMEM;
026331c4 5492
e247bd90
JB		 5493 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5494 NL80211_CMD_FRAME);
026331c4 5495
e247bd90
JB		 5496 if (IS_ERR(hdr)) {
5497 err = PTR_ERR(hdr);
5498 goto free_msg;
5499 }
026331c4 5500 }
e247bd90 5501
f7ca38df
JB		 5502 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
5503 channel_type_valid, wait,
2e161f78
JB		 5504 nla_data(info->attrs[NL80211_ATTR_FRAME]),
5505 nla_len(info->attrs[NL80211_ATTR_FRAME]),
e247bd90 5506 no_cck, dont_wait_for_ack, &cookie);
026331c4
JM		 5507 if (err)
5508 goto free_msg;
5509
e247bd90
JB		 5510 if (msg) {
5511 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
026331c4 5512
e247bd90
JB		 5513 genlmsg_end(msg, hdr);
5514 return genlmsg_reply(msg, info);
5515 }
5516
5517 return 0;
026331c4
JM		 5518
5519 nla_put_failure:
5520 err = -ENOBUFS;
5521 free_msg:
5522 nlmsg_free(msg);
026331c4
JM		 5523 return err;
5524}
5525
f7ca38df
JB		 5526static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
5527{
5528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5529 struct net_device *dev = info->user_ptr[1];
5530 u64 cookie;
5531
5532 if (!info->attrs[NL80211_ATTR_COOKIE])
5533 return -EINVAL;
5534
5535 if (!rdev->ops->mgmt_tx_cancel_wait)
5536 return -EOPNOTSUPP;
5537
5538 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5539 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5541 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
5542 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
5543 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
5544 return -EOPNOTSUPP;
5545
5546 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5547
5548 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
5549}
5550
ffb9eb3d
KV		 5551static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
5552{
4c476991 5553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 5554 struct wireless_dev *wdev;
4c476991 5555 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5556 u8 ps_state;
5557 bool state;
5558 int err;
5559
4c476991
JB		 5560 if (!info->attrs[NL80211_ATTR_PS_STATE])
5561 return -EINVAL;
ffb9eb3d
KV		 5562
5563 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
5564
4c476991
JB		 5565 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
5566 return -EINVAL;
ffb9eb3d
KV		 5567
5568 wdev = dev->ieee80211_ptr;
5569
4c476991
JB		 5570 if (!rdev->ops->set_power_mgmt)
5571 return -EOPNOTSUPP;
ffb9eb3d
KV		 5572
5573 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
5574
5575 if (state == wdev->ps)
4c476991 5576 return 0;
ffb9eb3d 5577
4c476991
JB		 5578 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
5579 wdev->ps_timeout);
5580 if (!err)
5581 wdev->ps = state;
ffb9eb3d
KV		 5582 return err;
5583}
5584
5585static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
5586{
4c476991 5587 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 5588 enum nl80211_ps_state ps_state;
5589 struct wireless_dev *wdev;
4c476991 5590 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 5591 struct sk_buff *msg;
5592 void *hdr;
5593 int err;
5594
ffb9eb3d
KV		 5595 wdev = dev->ieee80211_ptr;
5596
4c476991
JB		 5597 if (!rdev->ops->set_power_mgmt)
5598 return -EOPNOTSUPP;
ffb9eb3d
KV		 5599
5600 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 5601 if (!msg)
5602 return -ENOMEM;
ffb9eb3d
KV		 5603
5604 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5605 NL80211_CMD_GET_POWER_SAVE);
5606 if (!hdr) {
4c476991 5607 err = -ENOBUFS;
ffb9eb3d
KV		 5608 goto free_msg;
5609 }
5610
5611 if (wdev->ps)
5612 ps_state = NL80211_PS_ENABLED;
5613 else
5614 ps_state = NL80211_PS_DISABLED;
5615
5616 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
5617
5618 genlmsg_end(msg, hdr);
4c476991 5619 return genlmsg_reply(msg, info);
ffb9eb3d 5620
4c476991 5621 nla_put_failure:
ffb9eb3d 5622 err = -ENOBUFS;
4c476991 5623 free_msg:
ffb9eb3d 5624 nlmsg_free(msg);
ffb9eb3d
KV		 5625 return err;
5626}
5627
d6dc1a38
JO		 5628static struct nla_policy
5629nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
5630 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
5631 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
5632 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
5633};
5634
5635static int nl80211_set_cqm_rssi(struct genl_info *info,
5636 s32 threshold, u32 hysteresis)
5637{
4c476991 5638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 5639 struct wireless_dev *wdev;
4c476991 5640 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 5641
5642 if (threshold > 0)
5643 return -EINVAL;
5644
d6dc1a38
JO		 5645 wdev = dev->ieee80211_ptr;
5646
4c476991
JB		 5647 if (!rdev->ops->set_cqm_rssi_config)
5648 return -EOPNOTSUPP;
d6dc1a38 5649
074ac8df 5650 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 5651 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
5652 return -EOPNOTSUPP;
d6dc1a38 5653
4c476991
JB		 5654 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
5655 threshold, hysteresis);
d6dc1a38
JO		 5656}
5657
5658static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
5659{
5660 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
5661 struct nlattr *cqm;
5662 int err;
5663
5664 cqm = info->attrs[NL80211_ATTR_CQM];
5665 if (!cqm) {
5666 err = -EINVAL;
5667 goto out;
5668 }
5669
5670 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
5671 nl80211_attr_cqm_policy);
5672 if (err)
5673 goto out;
5674
5675 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
5676 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
5677 s32 threshold;
5678 u32 hysteresis;
5679 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
5680 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
5681 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
5682 } else
5683 err = -EINVAL;
5684
5685out:
5686 return err;
5687}
5688
29cbe68c
JB		 5689static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
5690{
5691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5692 struct net_device *dev = info->user_ptr[1];
5693 struct mesh_config cfg;
c80d545d 5694 struct mesh_setup setup;
29cbe68c
JB		 5695 int err;
5696
5697 /* start with default */
5698 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
c80d545d 5699 memcpy(&setup, &default_mesh_setup, sizeof(setup));
29cbe68c 5700
24bdd9f4 5701 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
29cbe68c 5702 /* and parse parameters if given */
24bdd9f4 5703 err = nl80211_parse_mesh_config(info, &cfg, NULL);
29cbe68c
JB		 5704 if (err)
5705 return err;
5706 }
5707
5708 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
5709 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
5710 return -EINVAL;
5711
c80d545d
JC		 5712 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
5713 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
5714
4bb62344
CYY		 5715 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5716 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
5717 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5718 return -EINVAL;
5719
c80d545d
JC		 5720 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
5721 /* parse additional setup parameters if given */
5722 err = nl80211_parse_mesh_setup(info, &setup);
5723 if (err)
5724 return err;
5725 }
5726
5727 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
29cbe68c
JB		 5728}
5729
5730static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
5731{
5732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5733 struct net_device *dev = info->user_ptr[1];
5734
5735 return cfg80211_leave_mesh(rdev, dev);
5736}
5737
ff1b6e69
JB		 5738static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
5739{
5740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5741 struct sk_buff *msg;
5742 void *hdr;
5743
5744 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5745 return -EOPNOTSUPP;
5746
5747 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5748 if (!msg)
5749 return -ENOMEM;
5750
5751 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5752 NL80211_CMD_GET_WOWLAN);
5753 if (!hdr)
5754 goto nla_put_failure;
5755
5756 if (rdev->wowlan) {
5757 struct nlattr *nl_wowlan;
5758
5759 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
5760 if (!nl_wowlan)
5761 goto nla_put_failure;
5762
5763 if (rdev->wowlan->any)
5764 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
5765 if (rdev->wowlan->disconnect)
5766 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
5767 if (rdev->wowlan->magic_pkt)
5768 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
77dbbb13
JB		 5769 if (rdev->wowlan->gtk_rekey_failure)
5770 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
5771 if (rdev->wowlan->eap_identity_req)
5772 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
5773 if (rdev->wowlan->four_way_handshake)
5774 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
5775 if (rdev->wowlan->rfkill_release)
5776 NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
ff1b6e69
JB		 5777 if (rdev->wowlan->n_patterns) {
5778 struct nlattr *nl_pats, *nl_pat;
5779 int i, pat_len;
5780
5781 nl_pats = nla_nest_start(msg,
5782 NL80211_WOWLAN_TRIG_PKT_PATTERN);
5783 if (!nl_pats)
5784 goto nla_put_failure;
5785
5786 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
5787 nl_pat = nla_nest_start(msg, i + 1);
5788 if (!nl_pat)
5789 goto nla_put_failure;
5790 pat_len = rdev->wowlan->patterns[i].pattern_len;
5791 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
5792 DIV_ROUND_UP(pat_len, 8),
5793 rdev->wowlan->patterns[i].mask);
5794 NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
5795 pat_len,
5796 rdev->wowlan->patterns[i].pattern);
5797 nla_nest_end(msg, nl_pat);
5798 }
5799 nla_nest_end(msg, nl_pats);
5800 }
5801
5802 nla_nest_end(msg, nl_wowlan);
5803 }
5804
5805 genlmsg_end(msg, hdr);
5806 return genlmsg_reply(msg, info);
5807
5808nla_put_failure:
5809 nlmsg_free(msg);
5810 return -ENOBUFS;
5811}
5812
5813static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
5814{
5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5816 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
5817 struct cfg80211_wowlan no_triggers = {};
5818 struct cfg80211_wowlan new_triggers = {};
5819 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
5820 int err, i;
5821
5822 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
5823 return -EOPNOTSUPP;
5824
5825 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
5826 goto no_triggers;
5827
5828 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
5829 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5830 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
5831 nl80211_wowlan_policy);
5832 if (err)
5833 return err;
5834
5835 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
5836 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
5837 return -EINVAL;
5838 new_triggers.any = true;
5839 }
5840
5841 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
5842 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
5843 return -EINVAL;
5844 new_triggers.disconnect = true;
5845 }
5846
5847 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
5848 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
5849 return -EINVAL;
5850 new_triggers.magic_pkt = true;
5851 }
5852
77dbbb13
JB		 5853 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
5854 return -EINVAL;
5855
5856 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
5857 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
5858 return -EINVAL;
5859 new_triggers.gtk_rekey_failure = true;
5860 }
5861
5862 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
5863 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
5864 return -EINVAL;
5865 new_triggers.eap_identity_req = true;
5866 }
5867
5868 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
5869 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
5870 return -EINVAL;
5871 new_triggers.four_way_handshake = true;
5872 }
5873
5874 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
5875 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
5876 return -EINVAL;
5877 new_triggers.rfkill_release = true;
5878 }
5879
ff1b6e69
JB		 5880 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
5881 struct nlattr *pat;
5882 int n_patterns = 0;
5883 int rem, pat_len, mask_len;
5884 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
5885
5886 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5887 rem)
5888 n_patterns++;
5889 if (n_patterns > wowlan->n_patterns)
5890 return -EINVAL;
5891
5892 new_triggers.patterns = kcalloc(n_patterns,
5893 sizeof(new_triggers.patterns[0]),
5894 GFP_KERNEL);
5895 if (!new_triggers.patterns)
5896 return -ENOMEM;
5897
5898 new_triggers.n_patterns = n_patterns;
5899 i = 0;
5900
5901 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
5902 rem) {
5903 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
5904 nla_data(pat), nla_len(pat), NULL);
5905 err = -EINVAL;
5906 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
5907 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
5908 goto error;
5909 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
5910 mask_len = DIV_ROUND_UP(pat_len, 8);
5911 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
5912 mask_len)
5913 goto error;
5914 if (pat_len > wowlan->pattern_max_len ||
5915 pat_len < wowlan->pattern_min_len)
5916 goto error;
5917
5918 new_triggers.patterns[i].mask =
5919 kmalloc(mask_len + pat_len, GFP_KERNEL);
5920 if (!new_triggers.patterns[i].mask) {
5921 err = -ENOMEM;
5922 goto error;
5923 }
5924 new_triggers.patterns[i].pattern =
5925 new_triggers.patterns[i].mask + mask_len;
5926 memcpy(new_triggers.patterns[i].mask,
5927 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
5928 mask_len);
5929 new_triggers.patterns[i].pattern_len = pat_len;
5930 memcpy(new_triggers.patterns[i].pattern,
5931 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
5932 pat_len);
5933 i++;
5934 }
5935 }
5936
5937 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
5938 struct cfg80211_wowlan *ntrig;
5939 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
5940 GFP_KERNEL);
5941 if (!ntrig) {
5942 err = -ENOMEM;
5943 goto error;
5944 }
5945 cfg80211_rdev_free_wowlan(rdev);
5946 rdev->wowlan = ntrig;
5947 } else {
5948 no_triggers:
5949 cfg80211_rdev_free_wowlan(rdev);
5950 rdev->wowlan = NULL;
5951 }
5952
5953 return 0;
5954 error:
5955 for (i = 0; i < new_triggers.n_patterns; i++)
5956 kfree(new_triggers.patterns[i].mask);
5957 kfree(new_triggers.patterns);
5958 return err;
5959}
5960
e5497d76
JB		 5961static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
5962{
5963 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5964 struct net_device *dev = info->user_ptr[1];
5965 struct wireless_dev *wdev = dev->ieee80211_ptr;
5966 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
5967 struct cfg80211_gtk_rekey_data rekey_data;
5968 int err;
5969
5970 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
5971 return -EINVAL;
5972
5973 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
5974 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
5975 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
5976 nl80211_rekey_policy);
5977 if (err)
5978 return err;
5979
5980 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
5981 return -ERANGE;
5982 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
5983 return -ERANGE;
5984 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
5985 return -ERANGE;
5986
5987 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
5988 NL80211_KEK_LEN);
5989 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
5990 NL80211_KCK_LEN);
5991 memcpy(rekey_data.replay_ctr,
5992 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
5993 NL80211_REPLAY_CTR_LEN);
5994
5995 wdev_lock(wdev);
5996 if (!wdev->current_bss) {
5997 err = -ENOTCONN;
5998 goto out;
5999 }
6000
6001 if (!rdev->ops->set_rekey_data) {
6002 err = -EOPNOTSUPP;
6003 goto out;
6004 }
6005
6006 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6007 out:
6008 wdev_unlock(wdev);
6009 return err;
6010}
6011
28946da7
JB		 6012static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6013 struct genl_info *info)
6014{
6015 struct net_device *dev = info->user_ptr[1];
6016 struct wireless_dev *wdev = dev->ieee80211_ptr;
6017
6018 if (wdev->iftype != NL80211_IFTYPE_AP &&
6019 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6020 return -EINVAL;
6021
6022 if (wdev->ap_unexpected_nlpid)
6023 return -EBUSY;
6024
6025 wdev->ap_unexpected_nlpid = info->snd_pid;
6026 return 0;
6027}
6028
7f6cf311
JB		 6029static int nl80211_probe_client(struct sk_buff *skb,
6030 struct genl_info *info)
6031{
6032 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6033 struct net_device *dev = info->user_ptr[1];
6034 struct wireless_dev *wdev = dev->ieee80211_ptr;
6035 struct sk_buff *msg;
6036 void *hdr;
6037 const u8 *addr;
6038 u64 cookie;
6039 int err;
6040
6041 if (wdev->iftype != NL80211_IFTYPE_AP &&
6042 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6043 return -EOPNOTSUPP;
6044
6045 if (!info->attrs[NL80211_ATTR_MAC])
6046 return -EINVAL;
6047
6048 if (!rdev->ops->probe_client)
6049 return -EOPNOTSUPP;
6050
6051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6052 if (!msg)
6053 return -ENOMEM;
6054
6055 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6056 NL80211_CMD_PROBE_CLIENT);
6057
6058 if (IS_ERR(hdr)) {
6059 err = PTR_ERR(hdr);
6060 goto free_msg;
6061 }
6062
6063 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6064
6065 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6066 if (err)
6067 goto free_msg;
6068
6069 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
6070
6071 genlmsg_end(msg, hdr);
6072
6073 return genlmsg_reply(msg, info);
6074
6075 nla_put_failure:
6076 err = -ENOBUFS;
6077 free_msg:
6078 nlmsg_free(msg);
6079 return err;
6080}
6081
5e760230
JB		 6082static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6083{
6084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6085
6086 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6087 return -EOPNOTSUPP;
6088
6089 if (rdev->ap_beacons_nlpid)
6090 return -EBUSY;
6091
6092 rdev->ap_beacons_nlpid = info->snd_pid;
6093
6094 return 0;
6095}
6096
4c476991
JB		 6097#define NL80211_FLAG_NEED_WIPHY 0x01
6098#define NL80211_FLAG_NEED_NETDEV 0x02
6099#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 6100#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6101#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6102 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 6103
6104static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6105 struct genl_info *info)
6106{
6107 struct cfg80211_registered_device *rdev;
6108 struct net_device *dev;
6109 int err;
6110 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6111
6112 if (rtnl)
6113 rtnl_lock();
6114
6115 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6116 rdev = cfg80211_get_dev_from_info(info);
6117 if (IS_ERR(rdev)) {
6118 if (rtnl)
6119 rtnl_unlock();
6120 return PTR_ERR(rdev);
6121 }
6122 info->user_ptr[0] = rdev;
6123 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
00918d33
JB		 6124 err = get_rdev_dev_by_ifindex(genl_info_net(info), info->attrs,
6125 &rdev, &dev);
4c476991
JB		 6126 if (err) {
6127 if (rtnl)
6128 rtnl_unlock();
6129 return err;
6130 }
41265714
JB		 6131 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6132 !netif_running(dev)) {
d537f5fd
JB		 6133 cfg80211_unlock_rdev(rdev);
6134 dev_put(dev);
41265714
JB		 6135 if (rtnl)
6136 rtnl_unlock();
6137 return -ENETDOWN;
6138 }
4c476991
JB		 6139 info->user_ptr[0] = rdev;
6140 info->user_ptr[1] = dev;
6141 }
6142
6143 return 0;
6144}
6145
6146static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6147 struct genl_info *info)
6148{
6149 if (info->user_ptr[0])
6150 cfg80211_unlock_rdev(info->user_ptr[0]);
6151 if (info->user_ptr[1])
6152 dev_put(info->user_ptr[1]);
6153 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6154 rtnl_unlock();
6155}
6156
55682965
JB		 6157static struct genl_ops nl80211_ops[] = {
6158 {
6159 .cmd = NL80211_CMD_GET_WIPHY,
6160 .doit = nl80211_get_wiphy,
6161 .dumpit = nl80211_dump_wiphy,
6162 .policy = nl80211_policy,
6163 /* can be retrieved by unprivileged users */
4c476991 6164 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 6165 },
6166 {
6167 .cmd = NL80211_CMD_SET_WIPHY,
6168 .doit = nl80211_set_wiphy,
6169 .policy = nl80211_policy,
6170 .flags = GENL_ADMIN_PERM,
4c476991 6171 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 6172 },
6173 {
6174 .cmd = NL80211_CMD_GET_INTERFACE,
6175 .doit = nl80211_get_interface,
6176 .dumpit = nl80211_dump_interface,
6177 .policy = nl80211_policy,
6178 /* can be retrieved by unprivileged users */
4c476991 6179 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 6180 },
6181 {
6182 .cmd = NL80211_CMD_SET_INTERFACE,
6183 .doit = nl80211_set_interface,
6184 .policy = nl80211_policy,
6185 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6187 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6188 },
6189 {
6190 .cmd = NL80211_CMD_NEW_INTERFACE,
6191 .doit = nl80211_new_interface,
6192 .policy = nl80211_policy,
6193 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6194 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6195 NL80211_FLAG_NEED_RTNL,
55682965
JB		 6196 },
6197 {
6198 .cmd = NL80211_CMD_DEL_INTERFACE,
6199 .doit = nl80211_del_interface,
6200 .policy = nl80211_policy,
41ade00f 6201 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6203 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6204 },
6205 {
6206 .cmd = NL80211_CMD_GET_KEY,
6207 .doit = nl80211_get_key,
6208 .policy = nl80211_policy,
6209 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6211 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6212 },
6213 {
6214 .cmd = NL80211_CMD_SET_KEY,
6215 .doit = nl80211_set_key,
6216 .policy = nl80211_policy,
6217 .flags = GENL_ADMIN_PERM,
41265714 6218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6219 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6220 },
6221 {
6222 .cmd = NL80211_CMD_NEW_KEY,
6223 .doit = nl80211_new_key,
6224 .policy = nl80211_policy,
6225 .flags = GENL_ADMIN_PERM,
41265714 6226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6227 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 6228 },
6229 {
6230 .cmd = NL80211_CMD_DEL_KEY,
6231 .doit = nl80211_del_key,
6232 .policy = nl80211_policy,
55682965 6233 .flags = GENL_ADMIN_PERM,
41265714 6234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6235 NL80211_FLAG_NEED_RTNL,
55682965 6236 },
ed1b6cc7
JB		 6237 {
6238 .cmd = NL80211_CMD_SET_BEACON,
6239 .policy = nl80211_policy,
6240 .flags = GENL_ADMIN_PERM,
6241 .doit = nl80211_addset_beacon,
4c476991
JB		 6242 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6243 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6244 },
6245 {
6246 .cmd = NL80211_CMD_NEW_BEACON,
6247 .policy = nl80211_policy,
6248 .flags = GENL_ADMIN_PERM,
6249 .doit = nl80211_addset_beacon,
4c476991
JB		 6250 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6251 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 6252 },
6253 {
6254 .cmd = NL80211_CMD_DEL_BEACON,
6255 .policy = nl80211_policy,
6256 .flags = GENL_ADMIN_PERM,
6257 .doit = nl80211_del_beacon,
4c476991
JB		 6258 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6259 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 6260 },
5727ef1b
JB		 6261 {
6262 .cmd = NL80211_CMD_GET_STATION,
6263 .doit = nl80211_get_station,
2ec600d6 6264 .dumpit = nl80211_dump_station,
5727ef1b 6265 .policy = nl80211_policy,
4c476991
JB		 6266 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6267 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6268 },
6269 {
6270 .cmd = NL80211_CMD_SET_STATION,
6271 .doit = nl80211_set_station,
6272 .policy = nl80211_policy,
6273 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6275 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6276 },
6277 {
6278 .cmd = NL80211_CMD_NEW_STATION,
6279 .doit = nl80211_new_station,
6280 .policy = nl80211_policy,
6281 .flags = GENL_ADMIN_PERM,
41265714 6282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6283 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 6284 },
6285 {
6286 .cmd = NL80211_CMD_DEL_STATION,
6287 .doit = nl80211_del_station,
6288 .policy = nl80211_policy,
2ec600d6 6289 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6290 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6291 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6292 },
6293 {
6294 .cmd = NL80211_CMD_GET_MPATH,
6295 .doit = nl80211_get_mpath,
6296 .dumpit = nl80211_dump_mpath,
6297 .policy = nl80211_policy,
6298 .flags = GENL_ADMIN_PERM,
41265714 6299 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6300 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6301 },
6302 {
6303 .cmd = NL80211_CMD_SET_MPATH,
6304 .doit = nl80211_set_mpath,
6305 .policy = nl80211_policy,
6306 .flags = GENL_ADMIN_PERM,
41265714 6307 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6308 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6309 },
6310 {
6311 .cmd = NL80211_CMD_NEW_MPATH,
6312 .doit = nl80211_new_mpath,
6313 .policy = nl80211_policy,
6314 .flags = GENL_ADMIN_PERM,
41265714 6315 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6316 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 6317 },
6318 {
6319 .cmd = NL80211_CMD_DEL_MPATH,
6320 .doit = nl80211_del_mpath,
6321 .policy = nl80211_policy,
9f1ba906 6322 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6323 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6324 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 6325 },
6326 {
6327 .cmd = NL80211_CMD_SET_BSS,
6328 .doit = nl80211_set_bss,
6329 .policy = nl80211_policy,
b2e1b302 6330 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6331 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6332 NL80211_FLAG_NEED_RTNL,
b2e1b302 6333 },
f130347c
LR		 6334 {
6335 .cmd = NL80211_CMD_GET_REG,
6336 .doit = nl80211_get_reg,
6337 .policy = nl80211_policy,
6338 /* can be retrieved by unprivileged users */
6339 },
b2e1b302
LR		 6340 {
6341 .cmd = NL80211_CMD_SET_REG,
6342 .doit = nl80211_set_reg,
6343 .policy = nl80211_policy,
6344 .flags = GENL_ADMIN_PERM,
6345 },
6346 {
6347 .cmd = NL80211_CMD_REQ_SET_REG,
6348 .doit = nl80211_req_set_reg,
6349 .policy = nl80211_policy,
93da9cc1 6350 .flags = GENL_ADMIN_PERM,
6351 },
6352 {
24bdd9f4
JC		 6353 .cmd = NL80211_CMD_GET_MESH_CONFIG,
6354 .doit = nl80211_get_mesh_config,
93da9cc1 6355 .policy = nl80211_policy,
6356 /* can be retrieved by unprivileged users */
4c476991
JB		 6357 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6358 NL80211_FLAG_NEED_RTNL,
93da9cc1 6359 },
6360 {
24bdd9f4
JC		 6361 .cmd = NL80211_CMD_SET_MESH_CONFIG,
6362 .doit = nl80211_update_mesh_config,
93da9cc1 6363 .policy = nl80211_policy,
9aed3cc1 6364 .flags = GENL_ADMIN_PERM,
29cbe68c 6365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6366 NL80211_FLAG_NEED_RTNL,
9aed3cc1 6367 },
2a519311
JB		 6368 {
6369 .cmd = NL80211_CMD_TRIGGER_SCAN,
6370 .doit = nl80211_trigger_scan,
6371 .policy = nl80211_policy,
6372 .flags = GENL_ADMIN_PERM,
41265714 6373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6374 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 6375 },
6376 {
6377 .cmd = NL80211_CMD_GET_SCAN,
6378 .policy = nl80211_policy,
6379 .dumpit = nl80211_dump_scan,
6380 },
807f8a8c
LC		 6381 {
6382 .cmd = NL80211_CMD_START_SCHED_SCAN,
6383 .doit = nl80211_start_sched_scan,
6384 .policy = nl80211_policy,
6385 .flags = GENL_ADMIN_PERM,
6386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6387 NL80211_FLAG_NEED_RTNL,
6388 },
6389 {
6390 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
6391 .doit = nl80211_stop_sched_scan,
6392 .policy = nl80211_policy,
6393 .flags = GENL_ADMIN_PERM,
6394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6395 NL80211_FLAG_NEED_RTNL,
6396 },
636a5d36
JM		 6397 {
6398 .cmd = NL80211_CMD_AUTHENTICATE,
6399 .doit = nl80211_authenticate,
6400 .policy = nl80211_policy,
6401 .flags = GENL_ADMIN_PERM,
41265714 6402 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6403 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6404 },
6405 {
6406 .cmd = NL80211_CMD_ASSOCIATE,
6407 .doit = nl80211_associate,
6408 .policy = nl80211_policy,
6409 .flags = GENL_ADMIN_PERM,
41265714 6410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6411 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6412 },
6413 {
6414 .cmd = NL80211_CMD_DEAUTHENTICATE,
6415 .doit = nl80211_deauthenticate,
6416 .policy = nl80211_policy,
6417 .flags = GENL_ADMIN_PERM,
41265714 6418 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6419 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 6420 },
6421 {
6422 .cmd = NL80211_CMD_DISASSOCIATE,
6423 .doit = nl80211_disassociate,
6424 .policy = nl80211_policy,
6425 .flags = GENL_ADMIN_PERM,
41265714 6426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6427 NL80211_FLAG_NEED_RTNL,
636a5d36 6428 },
04a773ad
JB		 6429 {
6430 .cmd = NL80211_CMD_JOIN_IBSS,
6431 .doit = nl80211_join_ibss,
6432 .policy = nl80211_policy,
6433 .flags = GENL_ADMIN_PERM,
41265714 6434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6435 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 6436 },
6437 {
6438 .cmd = NL80211_CMD_LEAVE_IBSS,
6439 .doit = nl80211_leave_ibss,
6440 .policy = nl80211_policy,
6441 .flags = GENL_ADMIN_PERM,
41265714 6442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6443 NL80211_FLAG_NEED_RTNL,
04a773ad 6444 },
aff89a9b
JB		 6445#ifdef CONFIG_NL80211_TESTMODE
6446 {
6447 .cmd = NL80211_CMD_TESTMODE,
6448 .doit = nl80211_testmode_do,
71063f0e 6449 .dumpit = nl80211_testmode_dump,
aff89a9b
JB		 6450 .policy = nl80211_policy,
6451 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6452 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6453 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 6454 },
6455#endif
b23aa676
SO		 6456 {
6457 .cmd = NL80211_CMD_CONNECT,
6458 .doit = nl80211_connect,
6459 .policy = nl80211_policy,
6460 .flags = GENL_ADMIN_PERM,
41265714 6461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6462 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 6463 },
6464 {
6465 .cmd = NL80211_CMD_DISCONNECT,
6466 .doit = nl80211_disconnect,
6467 .policy = nl80211_policy,
6468 .flags = GENL_ADMIN_PERM,
41265714 6469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6470 NL80211_FLAG_NEED_RTNL,
b23aa676 6471 },
463d0183
JB		 6472 {
6473 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
6474 .doit = nl80211_wiphy_netns,
6475 .policy = nl80211_policy,
6476 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6477 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6478 NL80211_FLAG_NEED_RTNL,
463d0183 6479 },
61fa713c
HS		 6480 {
6481 .cmd = NL80211_CMD_GET_SURVEY,
6482 .policy = nl80211_policy,
6483 .dumpit = nl80211_dump_survey,
6484 },
67fbb16b
SO		 6485 {
6486 .cmd = NL80211_CMD_SET_PMKSA,
6487 .doit = nl80211_setdel_pmksa,
6488 .policy = nl80211_policy,
6489 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6490 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6491 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6492 },
6493 {
6494 .cmd = NL80211_CMD_DEL_PMKSA,
6495 .doit = nl80211_setdel_pmksa,
6496 .policy = nl80211_policy,
6497 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6498 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6499 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 6500 },
6501 {
6502 .cmd = NL80211_CMD_FLUSH_PMKSA,
6503 .doit = nl80211_flush_pmksa,
6504 .policy = nl80211_policy,
6505 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6506 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6507 NL80211_FLAG_NEED_RTNL,
67fbb16b 6508 },
9588bbd5
JM		 6509 {
6510 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
6511 .doit = nl80211_remain_on_channel,
6512 .policy = nl80211_policy,
6513 .flags = GENL_ADMIN_PERM,
41265714 6514 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6515 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 6516 },
6517 {
6518 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
6519 .doit = nl80211_cancel_remain_on_channel,
6520 .policy = nl80211_policy,
6521 .flags = GENL_ADMIN_PERM,
41265714 6522 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6523 NL80211_FLAG_NEED_RTNL,
9588bbd5 6524 },
13ae75b1
JM		 6525 {
6526 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
6527 .doit = nl80211_set_tx_bitrate_mask,
6528 .policy = nl80211_policy,
6529 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6530 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6531 NL80211_FLAG_NEED_RTNL,
13ae75b1 6532 },
026331c4 6533 {
2e161f78
JB		 6534 .cmd = NL80211_CMD_REGISTER_FRAME,
6535 .doit = nl80211_register_mgmt,
026331c4
JM		 6536 .policy = nl80211_policy,
6537 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6538 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6539 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 6540 },
6541 {
2e161f78
JB		 6542 .cmd = NL80211_CMD_FRAME,
6543 .doit = nl80211_tx_mgmt,
026331c4 6544 .policy = nl80211_policy,
f7ca38df
JB		 6545 .flags = GENL_ADMIN_PERM,
6546 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6547 NL80211_FLAG_NEED_RTNL,
6548 },
6549 {
6550 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
6551 .doit = nl80211_tx_mgmt_cancel_wait,
6552 .policy = nl80211_policy,
026331c4 6553 .flags = GENL_ADMIN_PERM,
41265714 6554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 6555 NL80211_FLAG_NEED_RTNL,
026331c4 6556 },
ffb9eb3d
KV		 6557 {
6558 .cmd = NL80211_CMD_SET_POWER_SAVE,
6559 .doit = nl80211_set_power_save,
6560 .policy = nl80211_policy,
6561 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6562 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6563 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 6564 },
6565 {
6566 .cmd = NL80211_CMD_GET_POWER_SAVE,
6567 .doit = nl80211_get_power_save,
6568 .policy = nl80211_policy,
6569 /* can be retrieved by unprivileged users */
4c476991
JB		 6570 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6571 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 6572 },
d6dc1a38
JO		 6573 {
6574 .cmd = NL80211_CMD_SET_CQM,
6575 .doit = nl80211_set_cqm,
6576 .policy = nl80211_policy,
6577 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6578 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6579 NL80211_FLAG_NEED_RTNL,
d6dc1a38 6580 },
f444de05
JB		 6581 {
6582 .cmd = NL80211_CMD_SET_CHANNEL,
6583 .doit = nl80211_set_channel,
6584 .policy = nl80211_policy,
6585 .flags = GENL_ADMIN_PERM,
4c476991
JB		 6586 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6587 NL80211_FLAG_NEED_RTNL,
f444de05 6588 },
e8347eba
BJ		 6589 {
6590 .cmd = NL80211_CMD_SET_WDS_PEER,
6591 .doit = nl80211_set_wds_peer,
6592 .policy = nl80211_policy,
6593 .flags = GENL_ADMIN_PERM,
43b19952
JB		 6594 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6595 NL80211_FLAG_NEED_RTNL,
e8347eba 6596 },
29cbe68c
JB		 6597 {
6598 .cmd = NL80211_CMD_JOIN_MESH,
6599 .doit = nl80211_join_mesh,
6600 .policy = nl80211_policy,
6601 .flags = GENL_ADMIN_PERM,
6602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6603 NL80211_FLAG_NEED_RTNL,
6604 },
6605 {
6606 .cmd = NL80211_CMD_LEAVE_MESH,
6607 .doit = nl80211_leave_mesh,
6608 .policy = nl80211_policy,
6609 .flags = GENL_ADMIN_PERM,
6610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6611 NL80211_FLAG_NEED_RTNL,
6612 },
ff1b6e69
JB		 6613 {
6614 .cmd = NL80211_CMD_GET_WOWLAN,
6615 .doit = nl80211_get_wowlan,
6616 .policy = nl80211_policy,
6617 /* can be retrieved by unprivileged users */
6618 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6619 NL80211_FLAG_NEED_RTNL,
6620 },
6621 {
6622 .cmd = NL80211_CMD_SET_WOWLAN,
6623 .doit = nl80211_set_wowlan,
6624 .policy = nl80211_policy,
6625 .flags = GENL_ADMIN_PERM,
6626 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6627 NL80211_FLAG_NEED_RTNL,
6628 },
e5497d76
JB		 6629 {
6630 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
6631 .doit = nl80211_set_rekey_data,
6632 .policy = nl80211_policy,
6633 .flags = GENL_ADMIN_PERM,
6634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6635 NL80211_FLAG_NEED_RTNL,
6636 },
109086ce
AN		 6637 {
6638 .cmd = NL80211_CMD_TDLS_MGMT,
6639 .doit = nl80211_tdls_mgmt,
6640 .policy = nl80211_policy,
6641 .flags = GENL_ADMIN_PERM,
6642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6643 NL80211_FLAG_NEED_RTNL,
6644 },
6645 {
6646 .cmd = NL80211_CMD_TDLS_OPER,
6647 .doit = nl80211_tdls_oper,
6648 .policy = nl80211_policy,
6649 .flags = GENL_ADMIN_PERM,
6650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6651 NL80211_FLAG_NEED_RTNL,
6652 },
28946da7
JB		 6653 {
6654 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
6655 .doit = nl80211_register_unexpected_frame,
6656 .policy = nl80211_policy,
6657 .flags = GENL_ADMIN_PERM,
6658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6659 NL80211_FLAG_NEED_RTNL,
6660 },
7f6cf311
JB		 6661 {
6662 .cmd = NL80211_CMD_PROBE_CLIENT,
6663 .doit = nl80211_probe_client,
6664 .policy = nl80211_policy,
6665 .flags = GENL_ADMIN_PERM,
6666 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6667 NL80211_FLAG_NEED_RTNL,
6668 },
5e760230
JB		 6669 {
6670 .cmd = NL80211_CMD_REGISTER_BEACONS,
6671 .doit = nl80211_register_beacons,
6672 .policy = nl80211_policy,
6673 .flags = GENL_ADMIN_PERM,
6674 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6675 NL80211_FLAG_NEED_RTNL,
6676 },
1d9d9213
SW		 6677 {
6678 .cmd = NL80211_CMD_SET_NOACK_MAP,
6679 .doit = nl80211_set_noack_map,
6680 .policy = nl80211_policy,
6681 .flags = GENL_ADMIN_PERM,
6682 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6683 NL80211_FLAG_NEED_RTNL,
6684 },
6685
55682965 6686};
9588bbd5 6687
6039f6d2
JM		 6688static struct genl_multicast_group nl80211_mlme_mcgrp = {
6689 .name = "mlme",
6690};
55682965
JB		 6691
6692/* multicast groups */
6693static struct genl_multicast_group nl80211_config_mcgrp = {
6694 .name = "config",
6695};
2a519311
JB		 6696static struct genl_multicast_group nl80211_scan_mcgrp = {
6697 .name = "scan",
6698};
73d54c9e
LR		 6699static struct genl_multicast_group nl80211_regulatory_mcgrp = {
6700 .name = "regulatory",
6701};
55682965
JB		 6702
6703/* notification functions */
6704
6705void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
6706{
6707 struct sk_buff *msg;
6708
fd2120ca 6709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 6710 if (!msg)
6711 return;
6712
6713 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
6714 nlmsg_free(msg);
6715 return;
6716 }
6717
463d0183
JB		 6718 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6719 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 6720}
6721
362a415d
JB		 6722static int nl80211_add_scan_req(struct sk_buff *msg,
6723 struct cfg80211_registered_device *rdev)
6724{
6725 struct cfg80211_scan_request *req = rdev->scan_req;
6726 struct nlattr *nest;
6727 int i;
6728
667503dd
JB		 6729 ASSERT_RDEV_LOCK(rdev);
6730
362a415d
JB		 6731 if (WARN_ON(!req))
6732 return 0;
6733
6734 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
6735 if (!nest)
6736 goto nla_put_failure;
6737 for (i = 0; i < req->n_ssids; i++)
6738 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
6739 nla_nest_end(msg, nest);
6740
6741 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
6742 if (!nest)
6743 goto nla_put_failure;
6744 for (i = 0; i < req->n_channels; i++)
6745 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
6746 nla_nest_end(msg, nest);
6747
6748 if (req->ie)
6749 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
6750
6751 return 0;
6752 nla_put_failure:
6753 return -ENOBUFS;
6754}
6755
a538e2d5
JB		 6756static int nl80211_send_scan_msg(struct sk_buff *msg,
6757 struct cfg80211_registered_device *rdev,
6758 struct net_device *netdev,
6759 u32 pid, u32 seq, int flags,
6760 u32 cmd)
2a519311
JB		 6761{
6762 void *hdr;
6763
6764 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6765 if (!hdr)
6766 return -1;
6767
b5850a7a 6768 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 6769 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6770
362a415d
JB		 6771 /* ignore errors and send incomplete event anyway */
6772 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 6773
6774 return genlmsg_end(msg, hdr);
6775
6776 nla_put_failure:
6777 genlmsg_cancel(msg, hdr);
6778 return -EMSGSIZE;
6779}
6780
807f8a8c
LC		 6781static int
6782nl80211_send_sched_scan_msg(struct sk_buff *msg,
6783 struct cfg80211_registered_device *rdev,
6784 struct net_device *netdev,
6785 u32 pid, u32 seq, int flags, u32 cmd)
6786{
6787 void *hdr;
6788
6789 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
6790 if (!hdr)
6791 return -1;
6792
6793 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6794 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6795
6796 return genlmsg_end(msg, hdr);
6797
6798 nla_put_failure:
6799 genlmsg_cancel(msg, hdr);
6800 return -EMSGSIZE;
6801}
6802
a538e2d5
JB		 6803void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
6804 struct net_device *netdev)
6805{
6806 struct sk_buff *msg;
6807
6808 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6809 if (!msg)
6810 return;
6811
6812 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6813 NL80211_CMD_TRIGGER_SCAN) < 0) {
6814 nlmsg_free(msg);
6815 return;
6816 }
6817
463d0183
JB		 6818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6819 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 6820}
6821
2a519311
JB		 6822void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
6823 struct net_device *netdev)
6824{
6825 struct sk_buff *msg;
6826
fd2120ca 6827 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6828 if (!msg)
6829 return;
6830
a538e2d5
JB		 6831 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6832 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 6833 nlmsg_free(msg);
6834 return;
6835 }
6836
463d0183
JB		 6837 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6838 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6839}
6840
6841void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
6842 struct net_device *netdev)
6843{
6844 struct sk_buff *msg;
6845
fd2120ca 6846 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 6847 if (!msg)
6848 return;
6849
a538e2d5
JB		 6850 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
6851 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 6852 nlmsg_free(msg);
6853 return;
6854 }
6855
463d0183
JB		 6856 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6857 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 6858}
6859
807f8a8c
LC		 6860void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
6861 struct net_device *netdev)
6862{
6863 struct sk_buff *msg;
6864
6865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6866 if (!msg)
6867 return;
6868
6869 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
6870 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
6871 nlmsg_free(msg);
6872 return;
6873 }
6874
6875 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6876 nl80211_scan_mcgrp.id, GFP_KERNEL);
6877}
6878
6879void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
6880 struct net_device *netdev, u32 cmd)
6881{
6882 struct sk_buff *msg;
6883
6884 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
6885 if (!msg)
6886 return;
6887
6888 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
6889 nlmsg_free(msg);
6890 return;
6891 }
6892
6893 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6894 nl80211_scan_mcgrp.id, GFP_KERNEL);
6895}
6896
73d54c9e
LR		 6897/*
6898 * This can happen on global regulatory changes or device specific settings
6899 * based on custom world regulatory domains.
6900 */
6901void nl80211_send_reg_change_event(struct regulatory_request *request)
6902{
6903 struct sk_buff *msg;
6904 void *hdr;
6905
fd2120ca 6906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 6907 if (!msg)
6908 return;
6909
6910 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
6911 if (!hdr) {
6912 nlmsg_free(msg);
6913 return;
6914 }
6915
6916 /* Userspace can always count this one always being set */
6917 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
6918
6919 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
6920 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6921 NL80211_REGDOM_TYPE_WORLD);
6922 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
6923 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6924 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
6925 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
6926 request->intersect)
6927 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6928 NL80211_REGDOM_TYPE_INTERSECTION);
6929 else {
6930 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
6931 NL80211_REGDOM_TYPE_COUNTRY);
6932 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
6933 }
6934
6935 if (wiphy_idx_valid(request->wiphy_idx))
6936 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
6937
3b7b72ee 6938 genlmsg_end(msg, hdr);
73d54c9e 6939
bc43b28c 6940 rcu_read_lock();
463d0183 6941 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 6942 GFP_ATOMIC);
6943 rcu_read_unlock();
73d54c9e
LR		 6944
6945 return;
6946
6947nla_put_failure:
6948 genlmsg_cancel(msg, hdr);
6949 nlmsg_free(msg);
6950}
6951
6039f6d2
JM		 6952static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
6953 struct net_device *netdev,
6954 const u8 *buf, size_t len,
e6d6e342 6955 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 6956{
6957 struct sk_buff *msg;
6958 void *hdr;
6959
e6d6e342 6960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 6961 if (!msg)
6962 return;
6963
6964 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
6965 if (!hdr) {
6966 nlmsg_free(msg);
6967 return;
6968 }
6969
6970 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
6971 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
6972 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
6973
3b7b72ee 6974 genlmsg_end(msg, hdr);
6039f6d2 6975
463d0183
JB		 6976 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
6977 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 6978 return;
6979
6980 nla_put_failure:
6981 genlmsg_cancel(msg, hdr);
6982 nlmsg_free(msg);
6983}
6984
6985void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 6986 struct net_device *netdev, const u8 *buf,
6987 size_t len, gfp_t gfp)
6039f6d2
JM		 6988{
6989 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 6990 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 6991}
6992
6993void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
6994 struct net_device *netdev, const u8 *buf,
e6d6e342 6995 size_t len, gfp_t gfp)
6039f6d2 6996{
e6d6e342
JB		 6997 nl80211_send_mlme_event(rdev, netdev, buf, len,
6998 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 6999}
7000
53b46b84 7001void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7002 struct net_device *netdev, const u8 *buf,
7003 size_t len, gfp_t gfp)
6039f6d2
JM		 7004{
7005 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7006 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 7007}
7008
53b46b84
JM		 7009void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7010 struct net_device *netdev, const u8 *buf,
e6d6e342 7011 size_t len, gfp_t gfp)
6039f6d2
JM		 7012{
7013 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 7014 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 7015}
7016
cf4e594e
JM		 7017void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7018 struct net_device *netdev, const u8 *buf,
7019 size_t len, gfp_t gfp)
7020{
7021 nl80211_send_mlme_event(rdev, netdev, buf, len,
7022 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7023}
7024
7025void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7026 struct net_device *netdev, const u8 *buf,
7027 size_t len, gfp_t gfp)
7028{
7029 nl80211_send_mlme_event(rdev, netdev, buf, len,
7030 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7031}
7032
1b06bb40
LR		 7033static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7034 struct net_device *netdev, int cmd,
e6d6e342 7035 const u8 *addr, gfp_t gfp)
1965c853
JM		 7036{
7037 struct sk_buff *msg;
7038 void *hdr;
7039
e6d6e342 7040 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 7041 if (!msg)
7042 return;
7043
7044 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7045 if (!hdr) {
7046 nlmsg_free(msg);
7047 return;
7048 }
7049
7050 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7051 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7052 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
7053 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7054
3b7b72ee 7055 genlmsg_end(msg, hdr);
1965c853 7056
463d0183
JB		 7057 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7058 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 7059 return;
7060
7061 nla_put_failure:
7062 genlmsg_cancel(msg, hdr);
7063 nlmsg_free(msg);
7064}
7065
7066void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7067 struct net_device *netdev, const u8 *addr,
7068 gfp_t gfp)
1965c853
JM		 7069{
7070 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 7071 addr, gfp);
1965c853
JM		 7072}
7073
7074void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 7075 struct net_device *netdev, const u8 *addr,
7076 gfp_t gfp)
1965c853 7077{
e6d6e342
JB		 7078 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7079 addr, gfp);
1965c853
JM		 7080}
7081
b23aa676
SO		 7082void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7083 struct net_device *netdev, const u8 *bssid,
7084 const u8 *req_ie, size_t req_ie_len,
7085 const u8 *resp_ie, size_t resp_ie_len,
7086 u16 status, gfp_t gfp)
7087{
7088 struct sk_buff *msg;
7089 void *hdr;
7090
7091 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7092 if (!msg)
7093 return;
7094
7095 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7096 if (!hdr) {
7097 nlmsg_free(msg);
7098 return;
7099 }
7100
7101 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7102 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7103 if (bssid)
7104 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7105 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
7106 if (req_ie)
7107 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7108 if (resp_ie)
7109 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7110
3b7b72ee 7111 genlmsg_end(msg, hdr);
b23aa676 7112
463d0183
JB		 7113 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7114 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7115 return;
7116
7117 nla_put_failure:
7118 genlmsg_cancel(msg, hdr);
7119 nlmsg_free(msg);
7120
7121}
7122
7123void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7124 struct net_device *netdev, const u8 *bssid,
7125 const u8 *req_ie, size_t req_ie_len,
7126 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7127{
7128 struct sk_buff *msg;
7129 void *hdr;
7130
7131 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7132 if (!msg)
7133 return;
7134
7135 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7136 if (!hdr) {
7137 nlmsg_free(msg);
7138 return;
7139 }
7140
7141 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7142 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7143 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7144 if (req_ie)
7145 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
7146 if (resp_ie)
7147 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
7148
3b7b72ee 7149 genlmsg_end(msg, hdr);
b23aa676 7150
463d0183
JB		 7151 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7152 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 7153 return;
7154
7155 nla_put_failure:
7156 genlmsg_cancel(msg, hdr);
7157 nlmsg_free(msg);
7158
7159}
7160
7161void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7162 struct net_device *netdev, u16 reason,
667503dd 7163 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 7164{
7165 struct sk_buff *msg;
7166 void *hdr;
7167
667503dd 7168 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 7169 if (!msg)
7170 return;
7171
7172 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7173 if (!hdr) {
7174 nlmsg_free(msg);
7175 return;
7176 }
7177
7178 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7179 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7180 if (from_ap && reason)
7181 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
7182 if (from_ap)
7183 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
7184 if (ie)
7185 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
7186
3b7b72ee 7187 genlmsg_end(msg, hdr);
b23aa676 7188
463d0183
JB		 7189 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7190 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 7191 return;
7192
7193 nla_put_failure:
7194 genlmsg_cancel(msg, hdr);
7195 nlmsg_free(msg);
7196
7197}
7198
04a773ad
JB		 7199void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7200 struct net_device *netdev, const u8 *bssid,
7201 gfp_t gfp)
7202{
7203 struct sk_buff *msg;
7204 void *hdr;
7205
fd2120ca 7206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 7207 if (!msg)
7208 return;
7209
7210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7211 if (!hdr) {
7212 nlmsg_free(msg);
7213 return;
7214 }
7215
7216 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7217 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7218 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7219
3b7b72ee 7220 genlmsg_end(msg, hdr);
04a773ad 7221
463d0183
JB		 7222 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7223 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 7224 return;
7225
7226 nla_put_failure:
7227 genlmsg_cancel(msg, hdr);
7228 nlmsg_free(msg);
7229}
7230
c93b5e71
JC		 7231void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7232 struct net_device *netdev,
7233 const u8 *macaddr, const u8* ie, u8 ie_len,
7234 gfp_t gfp)
7235{
7236 struct sk_buff *msg;
7237 void *hdr;
7238
7239 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7240 if (!msg)
7241 return;
7242
7243 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7244 if (!hdr) {
7245 nlmsg_free(msg);
7246 return;
7247 }
7248
7249 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7250 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7251 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr);
7252 if (ie_len && ie)
7253 NLA_PUT(msg, NL80211_ATTR_IE, ie_len , ie);
7254
3b7b72ee 7255 genlmsg_end(msg, hdr);
c93b5e71
JC		 7256
7257 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7258 nl80211_mlme_mcgrp.id, gfp);
7259 return;
7260
7261 nla_put_failure:
7262 genlmsg_cancel(msg, hdr);
7263 nlmsg_free(msg);
7264}
7265
a3b8b056
JM		 7266void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7267 struct net_device *netdev, const u8 *addr,
7268 enum nl80211_key_type key_type, int key_id,
e6d6e342 7269 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 7270{
7271 struct sk_buff *msg;
7272 void *hdr;
7273
e6d6e342 7274 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 7275 if (!msg)
7276 return;
7277
7278 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7279 if (!hdr) {
7280 nlmsg_free(msg);
7281 return;
7282 }
7283
7284 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7285 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7286 if (addr)
7287 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7288 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
a66b98db
AN		 7289 if (key_id != -1)
7290 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
a3b8b056
JM		 7291 if (tsc)
7292 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
7293
3b7b72ee 7294 genlmsg_end(msg, hdr);
a3b8b056 7295
463d0183
JB		 7296 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7297 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 7298 return;
7299
7300 nla_put_failure:
7301 genlmsg_cancel(msg, hdr);
7302 nlmsg_free(msg);
7303}
7304
6bad8766
LR		 7305void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7306 struct ieee80211_channel *channel_before,
7307 struct ieee80211_channel *channel_after)
7308{
7309 struct sk_buff *msg;
7310 void *hdr;
7311 struct nlattr *nl_freq;
7312
fd2120ca 7313 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 7314 if (!msg)
7315 return;
7316
7317 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
7318 if (!hdr) {
7319 nlmsg_free(msg);
7320 return;
7321 }
7322
7323 /*
7324 * Since we are applying the beacon hint to a wiphy we know its
7325 * wiphy_idx is valid
7326 */
7327 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
7328
7329 /* Before */
7330 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
7331 if (!nl_freq)
7332 goto nla_put_failure;
7333 if (nl80211_msg_put_channel(msg, channel_before))
7334 goto nla_put_failure;
7335 nla_nest_end(msg, nl_freq);
7336
7337 /* After */
7338 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
7339 if (!nl_freq)
7340 goto nla_put_failure;
7341 if (nl80211_msg_put_channel(msg, channel_after))
7342 goto nla_put_failure;
7343 nla_nest_end(msg, nl_freq);
7344
3b7b72ee 7345 genlmsg_end(msg, hdr);
6bad8766 7346
463d0183
JB		 7347 rcu_read_lock();
7348 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7349 GFP_ATOMIC);
7350 rcu_read_unlock();
6bad8766
LR		 7351
7352 return;
7353
7354nla_put_failure:
7355 genlmsg_cancel(msg, hdr);
7356 nlmsg_free(msg);
7357}
7358
9588bbd5
JM		 7359static void nl80211_send_remain_on_chan_event(
7360 int cmd, struct cfg80211_registered_device *rdev,
7361 struct net_device *netdev, u64 cookie,
7362 struct ieee80211_channel *chan,
7363 enum nl80211_channel_type channel_type,
7364 unsigned int duration, gfp_t gfp)
7365{
7366 struct sk_buff *msg;
7367 void *hdr;
7368
7369 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7370 if (!msg)
7371 return;
7372
7373 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7374 if (!hdr) {
7375 nlmsg_free(msg);
7376 return;
7377 }
7378
7379 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7380 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7381 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
7382 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
7383 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7384
7385 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
7386 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
7387
3b7b72ee 7388 genlmsg_end(msg, hdr);
9588bbd5
JM		 7389
7390 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7391 nl80211_mlme_mcgrp.id, gfp);
7392 return;
7393
7394 nla_put_failure:
7395 genlmsg_cancel(msg, hdr);
7396 nlmsg_free(msg);
7397}
7398
7399void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
7400 struct net_device *netdev, u64 cookie,
7401 struct ieee80211_channel *chan,
7402 enum nl80211_channel_type channel_type,
7403 unsigned int duration, gfp_t gfp)
7404{
7405 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
7406 rdev, netdev, cookie, chan,
7407 channel_type, duration, gfp);
7408}
7409
7410void nl80211_send_remain_on_channel_cancel(
7411 struct cfg80211_registered_device *rdev, struct net_device *netdev,
7412 u64 cookie, struct ieee80211_channel *chan,
7413 enum nl80211_channel_type channel_type, gfp_t gfp)
7414{
7415 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7416 rdev, netdev, cookie, chan,
7417 channel_type, 0, gfp);
7418}
7419
98b62183
JB		 7420void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
7421 struct net_device *dev, const u8 *mac_addr,
7422 struct station_info *sinfo, gfp_t gfp)
7423{
7424 struct sk_buff *msg;
7425
7426 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7427 if (!msg)
7428 return;
7429
7430 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
7431 nlmsg_free(msg);
7432 return;
7433 }
7434
7435 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7436 nl80211_mlme_mcgrp.id, gfp);
7437}
7438
ec15e68b
JM		 7439void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
7440 struct net_device *dev, const u8 *mac_addr,
7441 gfp_t gfp)
7442{
7443 struct sk_buff *msg;
7444 void *hdr;
7445
7446 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7447 if (!msg)
7448 return;
7449
7450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
7451 if (!hdr) {
7452 nlmsg_free(msg);
7453 return;
7454 }
7455
7456 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7457 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
7458
3b7b72ee 7459 genlmsg_end(msg, hdr);
ec15e68b
JM		 7460
7461 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7462 nl80211_mlme_mcgrp.id, gfp);
7463 return;
7464
7465 nla_put_failure:
7466 genlmsg_cancel(msg, hdr);
7467 nlmsg_free(msg);
7468}
7469
b92ab5d8
JB		 7470static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
7471 const u8 *addr, gfp_t gfp)
28946da7
JB		 7472{
7473 struct wireless_dev *wdev = dev->ieee80211_ptr;
7474 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7475 struct sk_buff *msg;
7476 void *hdr;
7477 int err;
7478 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
7479
7480 if (!nlpid)
7481 return false;
7482
7483 msg = nlmsg_new(100, gfp);
7484 if (!msg)
7485 return true;
7486
b92ab5d8 7487 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
28946da7
JB		 7488 if (!hdr) {
7489 nlmsg_free(msg);
7490 return true;
7491 }
7492
7493 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7494 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7495 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7496
7497 err = genlmsg_end(msg, hdr);
7498 if (err < 0) {
7499 nlmsg_free(msg);
7500 return true;
7501 }
7502
7503 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7504 return true;
7505
7506 nla_put_failure:
7507 genlmsg_cancel(msg, hdr);
7508 nlmsg_free(msg);
7509 return true;
7510}
7511
b92ab5d8
JB		 7512bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
7513{
7514 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
7515 addr, gfp);
7516}
7517
7518bool nl80211_unexpected_4addr_frame(struct net_device *dev,
7519 const u8 *addr, gfp_t gfp)
7520{
7521 return __nl80211_unexpected_frame(dev,
7522 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
7523 addr, gfp);
7524}
7525
2e161f78
JB		 7526int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
7527 struct net_device *netdev, u32 nlpid,
7528 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 7529{
7530 struct sk_buff *msg;
7531 void *hdr;
026331c4
JM		 7532
7533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7534 if (!msg)
7535 return -ENOMEM;
7536
2e161f78 7537 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 7538 if (!hdr) {
7539 nlmsg_free(msg);
7540 return -ENOMEM;
7541 }
7542
7543 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7544 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7545 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7546 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7547
3b7b72ee 7548 genlmsg_end(msg, hdr);
026331c4 7549
3b7b72ee 7550 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
026331c4
JM		 7551
7552 nla_put_failure:
7553 genlmsg_cancel(msg, hdr);
7554 nlmsg_free(msg);
7555 return -ENOBUFS;
7556}
7557
2e161f78
JB		 7558void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
7559 struct net_device *netdev, u64 cookie,
7560 const u8 *buf, size_t len, bool ack,
7561 gfp_t gfp)
026331c4
JM		 7562{
7563 struct sk_buff *msg;
7564 void *hdr;
7565
7566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7567 if (!msg)
7568 return;
7569
2e161f78 7570 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 7571 if (!hdr) {
7572 nlmsg_free(msg);
7573 return;
7574 }
7575
7576 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7577 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7578 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
7579 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7580 if (ack)
7581 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7582
3b7b72ee 7583 genlmsg_end(msg, hdr);
026331c4
JM		 7584
7585 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
7586 return;
7587
7588 nla_put_failure:
7589 genlmsg_cancel(msg, hdr);
7590 nlmsg_free(msg);
7591}
7592
d6dc1a38
JO		 7593void
7594nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
7595 struct net_device *netdev,
7596 enum nl80211_cqm_rssi_threshold_event rssi_event,
7597 gfp_t gfp)
7598{
7599 struct sk_buff *msg;
7600 struct nlattr *pinfoattr;
7601 void *hdr;
7602
7603 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7604 if (!msg)
7605 return;
7606
7607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7608 if (!hdr) {
7609 nlmsg_free(msg);
7610 return;
7611 }
7612
7613 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7614 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7615
7616 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7617 if (!pinfoattr)
7618 goto nla_put_failure;
7619
7620 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
7621 rssi_event);
7622
7623 nla_nest_end(msg, pinfoattr);
7624
3b7b72ee 7625 genlmsg_end(msg, hdr);
d6dc1a38
JO		 7626
7627 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7628 nl80211_mlme_mcgrp.id, gfp);
7629 return;
7630
7631 nla_put_failure:
7632 genlmsg_cancel(msg, hdr);
7633 nlmsg_free(msg);
7634}
7635
e5497d76
JB		 7636void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
7637 struct net_device *netdev, const u8 *bssid,
7638 const u8 *replay_ctr, gfp_t gfp)
7639{
7640 struct sk_buff *msg;
7641 struct nlattr *rekey_attr;
7642 void *hdr;
7643
7644 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7645 if (!msg)
7646 return;
7647
7648 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
7649 if (!hdr) {
7650 nlmsg_free(msg);
7651 return;
7652 }
7653
7654 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7655 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7656 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
7657
7658 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
7659 if (!rekey_attr)
7660 goto nla_put_failure;
7661
7662 NLA_PUT(msg, NL80211_REKEY_DATA_REPLAY_CTR,
7663 NL80211_REPLAY_CTR_LEN, replay_ctr);
7664
7665 nla_nest_end(msg, rekey_attr);
7666
3b7b72ee 7667 genlmsg_end(msg, hdr);
e5497d76
JB		 7668
7669 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7670 nl80211_mlme_mcgrp.id, gfp);
7671 return;
7672
7673 nla_put_failure:
7674 genlmsg_cancel(msg, hdr);
7675 nlmsg_free(msg);
7676}
7677
c9df56b4
JM		 7678void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
7679 struct net_device *netdev, int index,
7680 const u8 *bssid, bool preauth, gfp_t gfp)
7681{
7682 struct sk_buff *msg;
7683 struct nlattr *attr;
7684 void *hdr;
7685
7686 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7687 if (!msg)
7688 return;
7689
7690 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
7691 if (!hdr) {
7692 nlmsg_free(msg);
7693 return;
7694 }
7695
7696 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7697 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7698
7699 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
7700 if (!attr)
7701 goto nla_put_failure;
7702
7703 NLA_PUT_U32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index);
7704 NLA_PUT(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid);
7705 if (preauth)
7706 NLA_PUT_FLAG(msg, NL80211_PMKSA_CANDIDATE_PREAUTH);
7707
7708 nla_nest_end(msg, attr);
7709
3b7b72ee 7710 genlmsg_end(msg, hdr);
c9df56b4
JM		 7711
7712 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7713 nl80211_mlme_mcgrp.id, gfp);
7714 return;
7715
7716 nla_put_failure:
7717 genlmsg_cancel(msg, hdr);
7718 nlmsg_free(msg);
7719}
7720
c063dbf5
JB		 7721void
7722nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
7723 struct net_device *netdev, const u8 *peer,
7724 u32 num_packets, gfp_t gfp)
7725{
7726 struct sk_buff *msg;
7727 struct nlattr *pinfoattr;
7728 void *hdr;
7729
7730 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7731 if (!msg)
7732 return;
7733
7734 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
7735 if (!hdr) {
7736 nlmsg_free(msg);
7737 return;
7738 }
7739
7740 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7741 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
7742 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, peer);
7743
7744 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
7745 if (!pinfoattr)
7746 goto nla_put_failure;
7747
7748 NLA_PUT_U32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets);
7749
7750 nla_nest_end(msg, pinfoattr);
7751
3b7b72ee 7752 genlmsg_end(msg, hdr);
c063dbf5
JB		 7753
7754 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7755 nl80211_mlme_mcgrp.id, gfp);
7756 return;
7757
7758 nla_put_failure:
7759 genlmsg_cancel(msg, hdr);
7760 nlmsg_free(msg);
7761}
7762
7f6cf311
JB		 7763void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
7764 u64 cookie, bool acked, gfp_t gfp)
7765{
7766 struct wireless_dev *wdev = dev->ieee80211_ptr;
7767 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
7768 struct sk_buff *msg;
7769 void *hdr;
7770 int err;
7771
7772 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7773 if (!msg)
7774 return;
7775
7776 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
7777 if (!hdr) {
7778 nlmsg_free(msg);
7779 return;
7780 }
7781
7782 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7783 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
7784 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
7785 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
7786 if (acked)
7787 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
7788
7789 err = genlmsg_end(msg, hdr);
7790 if (err < 0) {
7791 nlmsg_free(msg);
7792 return;
7793 }
7794
7795 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7796 nl80211_mlme_mcgrp.id, gfp);
7797 return;
7798
7799 nla_put_failure:
7800 genlmsg_cancel(msg, hdr);
7801 nlmsg_free(msg);
7802}
7803EXPORT_SYMBOL(cfg80211_probe_status);
7804
5e760230
JB		 7805void cfg80211_report_obss_beacon(struct wiphy *wiphy,
7806 const u8 *frame, size_t len,
7807 int freq, gfp_t gfp)
7808{
7809 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
7810 struct sk_buff *msg;
7811 void *hdr;
7812 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
7813
7814 if (!nlpid)
7815 return;
7816
7817 msg = nlmsg_new(len + 100, gfp);
7818 if (!msg)
7819 return;
7820
7821 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
7822 if (!hdr) {
7823 nlmsg_free(msg);
7824 return;
7825 }
7826
7827 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
7828 if (freq)
7829 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
7830 NLA_PUT(msg, NL80211_ATTR_FRAME, len, frame);
7831
7832 genlmsg_end(msg, hdr);
7833
7834 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
7835 return;
7836
7837 nla_put_failure:
7838 genlmsg_cancel(msg, hdr);
7839 nlmsg_free(msg);
7840}
7841EXPORT_SYMBOL(cfg80211_report_obss_beacon);
7842
026331c4
JM		 7843static int nl80211_netlink_notify(struct notifier_block * nb,
7844 unsigned long state,
7845 void *_notify)
7846{
7847 struct netlink_notify *notify = _notify;
7848 struct cfg80211_registered_device *rdev;
7849 struct wireless_dev *wdev;
7850
7851 if (state != NETLINK_URELEASE)
7852 return NOTIFY_DONE;
7853
7854 rcu_read_lock();
7855
5e760230 7856 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
026331c4 7857 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 7858 cfg80211_mlme_unregister_socket(wdev, notify->pid);
5e760230
JB		 7859 if (rdev->ap_beacons_nlpid == notify->pid)
7860 rdev->ap_beacons_nlpid = 0;
7861 }
026331c4
JM		 7862
7863 rcu_read_unlock();
7864
7865 return NOTIFY_DONE;
7866}
7867
7868static struct notifier_block nl80211_netlink_notifier = {
7869 .notifier_call = nl80211_netlink_notify,
7870};
7871
55682965
JB		 7872/* initialisation/exit functions */
7873
7874int nl80211_init(void)
7875{
0d63cbb5 7876 int err;
55682965 7877
0d63cbb5
MM		 7878 err = genl_register_family_with_ops(&nl80211_fam,
7879 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 7880 if (err)
7881 return err;
7882
55682965
JB		 7883 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
7884 if (err)
7885 goto err_out;
7886
2a519311
JB		 7887 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
7888 if (err)
7889 goto err_out;
7890
73d54c9e
LR		 7891 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
7892 if (err)
7893 goto err_out;
7894
6039f6d2
JM		 7895 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
7896 if (err)
7897 goto err_out;
7898
aff89a9b
JB		 7899#ifdef CONFIG_NL80211_TESTMODE
7900 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
7901 if (err)
7902 goto err_out;
7903#endif
7904
026331c4
JM		 7905 err = netlink_register_notifier(&nl80211_netlink_notifier);
7906 if (err)
7907 goto err_out;
7908
55682965
JB		 7909 return 0;
7910 err_out:
7911 genl_unregister_family(&nl80211_fam);
7912 return err;
7913}
7914
7915void nl80211_exit(void)
7916{
026331c4 7917 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 7918 genl_unregister_family(&nl80211_fam);
7919}
kernel source for telekom puls (alcatel/mediatek)