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[linux.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 <[email protected]>
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
4c476991
JB		 26static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
27 struct genl_info *info);
28static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
29 struct genl_info *info);
30
55682965
JB		 31/* the netlink family */
32static struct genl_family nl80211_fam = {
33 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
34 .name = "nl80211", /* have users key off the name instead */
35 .hdrsize = 0, /* no private header */
36 .version = 1, /* no particular meaning now */
37 .maxattr = NL80211_ATTR_MAX,
463d0183 38 .netnsok = true,
4c476991
JB		 39 .pre_doit = nl80211_pre_doit,
40 .post_doit = nl80211_post_doit,
55682965
JB		 41};
42
79c97e97 43/* internal helper: get rdev and dev */
463d0183 44static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 45 struct cfg80211_registered_device **rdev,
55682965
JB		 46 struct net_device **dev)
47{
463d0183 48 struct nlattr **attrs = info->attrs;
55682965
JB		 49 int ifindex;
50
bba95fef 51 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 52 return -EINVAL;
53
bba95fef 54 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 55 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 56 if (!*dev)
57 return -ENODEV;
58
463d0183 59 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 60 if (IS_ERR(*rdev)) {
55682965 61 dev_put(*dev);
79c97e97 62 return PTR_ERR(*rdev);
55682965
JB		 63 }
64
65 return 0;
66}
67
68/* policy for the attributes */
b54452b0 69static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
55682965
JB		 70 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 72 .len = 20-1 },
31888487 73 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 74 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 75 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 76 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
77 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
78 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
79 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 80 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 81
82 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
83 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
84 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 85
86 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 87 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 88
b9454e83 89 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 90 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
91 .len = WLAN_MAX_KEY_LEN },
92 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
93 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
94 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 95 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
e31b8213 96 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
ed1b6cc7
JB		 97
98 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
99 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
100 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
101 .len = IEEE80211_MAX_DATA_LEN },
102 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
103 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 104 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
105 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
106 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
107 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
108 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 109 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 110 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 111 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 112 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
113 .len = IEEE80211_MAX_MESH_ID_LEN },
114 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 115
b2e1b302
LR		 116 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
117 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
118
9f1ba906
JM		 119 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
120 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
121 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 122 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
123 .len = NL80211_MAX_SUPP_RATES },
36aedc90 124
93da9cc1 125 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
126
36aedc90
JM		 127 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
128 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 129
130 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
131 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
132 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 133 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
134 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 135
136 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
137 .len = IEEE80211_MAX_SSID_LEN },
138 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
139 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 140 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 141 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 142 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 143 [NL80211_ATTR_STA_FLAGS2] = {
144 .len = sizeof(struct nl80211_sta_flag_update),
145 },
3f77316c 146 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
c0692b8f
JB		 147 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
148 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
b23aa676
SO		 149 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
150 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
151 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 152 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 153 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 154 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
155 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 156 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
157 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 158 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 159 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
160 .len = IEEE80211_MAX_DATA_LEN },
161 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
ffb9eb3d 162 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
d6dc1a38 163 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
d5cdfacb 164 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
fd8aaaf3 165 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
98d2ff8b
JO		 166
167 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
168 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
2e161f78 169 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
55682965
JB		 170};
171
e31b8213 172/* policy for the key attributes */
b54452b0 173static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
fffd0934 174 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 175 [NL80211_KEY_IDX] = { .type = NLA_U8 },
176 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
177 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
178 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
179 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
e31b8213 180 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
b9454e83
JB		 181};
182
a043897a
HS		 183/* ifidx get helper */
184static int nl80211_get_ifidx(struct netlink_callback *cb)
185{
186 int res;
187
188 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
189 nl80211_fam.attrbuf, nl80211_fam.maxattr,
190 nl80211_policy);
191 if (res)
192 return res;
193
194 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
195 return -EINVAL;
196
197 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
198 if (!res)
199 return -EINVAL;
200 return res;
201}
202
67748893
JB		 203static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
204 struct netlink_callback *cb,
205 struct cfg80211_registered_device **rdev,
206 struct net_device **dev)
207{
208 int ifidx = cb->args[0];
209 int err;
210
211 if (!ifidx)
212 ifidx = nl80211_get_ifidx(cb);
213 if (ifidx < 0)
214 return ifidx;
215
216 cb->args[0] = ifidx;
217
218 rtnl_lock();
219
220 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
221 if (!*dev) {
222 err = -ENODEV;
223 goto out_rtnl;
224 }
225
226 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
227 if (IS_ERR(dev)) {
228 err = PTR_ERR(dev);
229 goto out_rtnl;
230 }
231
232 return 0;
233 out_rtnl:
234 rtnl_unlock();
235 return err;
236}
237
238static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
239{
240 cfg80211_unlock_rdev(rdev);
241 rtnl_unlock();
242}
243
f4a11bb0
JB		 244/* IE validation */
245static bool is_valid_ie_attr(const struct nlattr *attr)
246{
247 const u8 *pos;
248 int len;
249
250 if (!attr)
251 return true;
252
253 pos = nla_data(attr);
254 len = nla_len(attr);
255
256 while (len) {
257 u8 elemlen;
258
259 if (len < 2)
260 return false;
261 len -= 2;
262
263 elemlen = pos[1];
264 if (elemlen > len)
265 return false;
266
267 len -= elemlen;
268 pos += 2 + elemlen;
269 }
270
271 return true;
272}
273
55682965
JB		 274/* message building helper */
275static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
276 int flags, u8 cmd)
277{
278 /* since there is no private header just add the generic one */
279 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
280}
281
5dab3b8a
LR		 282static int nl80211_msg_put_channel(struct sk_buff *msg,
283 struct ieee80211_channel *chan)
284{
285 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
286 chan->center_freq);
287
288 if (chan->flags & IEEE80211_CHAN_DISABLED)
289 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
290 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
291 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
292 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
293 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
294 if (chan->flags & IEEE80211_CHAN_RADAR)
295 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
296
297 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
298 DBM_TO_MBM(chan->max_power));
299
300 return 0;
301
302 nla_put_failure:
303 return -ENOBUFS;
304}
305
55682965
JB		 306/* netlink command implementations */
307
b9454e83
JB		 308struct key_parse {
309 struct key_params p;
310 int idx;
e31b8213 311 int type;
b9454e83
JB		 312 bool def, defmgmt;
313};
314
315static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
316{
317 struct nlattr *tb[NL80211_KEY_MAX + 1];
318 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
319 nl80211_key_policy);
320 if (err)
321 return err;
322
323 k->def = !!tb[NL80211_KEY_DEFAULT];
324 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
325
326 if (tb[NL80211_KEY_IDX])
327 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
328
329 if (tb[NL80211_KEY_DATA]) {
330 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
331 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
332 }
333
334 if (tb[NL80211_KEY_SEQ]) {
335 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
336 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
337 }
338
339 if (tb[NL80211_KEY_CIPHER])
340 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
341
e31b8213
JB		 342 if (tb[NL80211_KEY_TYPE]) {
343 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
344 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
345 return -EINVAL;
346 }
347
b9454e83
JB		 348 return 0;
349}
350
351static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
352{
353 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
354 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
355 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
356 }
357
358 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
359 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
360 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
361 }
362
363 if (info->attrs[NL80211_ATTR_KEY_IDX])
364 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
365
366 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
367 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
368
369 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
370 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
371
e31b8213
JB		 372 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
373 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
374 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
375 return -EINVAL;
376 }
377
b9454e83
JB		 378 return 0;
379}
380
381static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
382{
383 int err;
384
385 memset(k, 0, sizeof(*k));
386 k->idx = -1;
e31b8213 387 k->type = -1;
b9454e83
JB		 388
389 if (info->attrs[NL80211_ATTR_KEY])
390 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
391 else
392 err = nl80211_parse_key_old(info, k);
393
394 if (err)
395 return err;
396
397 if (k->def && k->defmgmt)
398 return -EINVAL;
399
400 if (k->idx != -1) {
401 if (k->defmgmt) {
402 if (k->idx < 4 || k->idx > 5)
403 return -EINVAL;
404 } else if (k->def) {
405 if (k->idx < 0 || k->idx > 3)
406 return -EINVAL;
407 } else {
408 if (k->idx < 0 || k->idx > 5)
409 return -EINVAL;
410 }
411 }
412
413 return 0;
414}
415
fffd0934
JB		 416static struct cfg80211_cached_keys *
417nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
418 struct nlattr *keys)
419{
420 struct key_parse parse;
421 struct nlattr *key;
422 struct cfg80211_cached_keys *result;
423 int rem, err, def = 0;
424
425 result = kzalloc(sizeof(*result), GFP_KERNEL);
426 if (!result)
427 return ERR_PTR(-ENOMEM);
428
429 result->def = -1;
430 result->defmgmt = -1;
431
432 nla_for_each_nested(key, keys, rem) {
433 memset(&parse, 0, sizeof(parse));
434 parse.idx = -1;
435
436 err = nl80211_parse_key_new(key, &parse);
437 if (err)
438 goto error;
439 err = -EINVAL;
440 if (!parse.p.key)
441 goto error;
442 if (parse.idx < 0 || parse.idx > 4)
443 goto error;
444 if (parse.def) {
445 if (def)
446 goto error;
447 def = 1;
448 result->def = parse.idx;
449 } else if (parse.defmgmt)
450 goto error;
451 err = cfg80211_validate_key_settings(rdev, &parse.p,
e31b8213 452 parse.idx, false, NULL);
fffd0934
JB		 453 if (err)
454 goto error;
455 result->params[parse.idx].cipher = parse.p.cipher;
456 result->params[parse.idx].key_len = parse.p.key_len;
457 result->params[parse.idx].key = result->data[parse.idx];
458 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
459 }
460
461 return result;
462 error:
463 kfree(result);
464 return ERR_PTR(err);
465}
466
467static int nl80211_key_allowed(struct wireless_dev *wdev)
468{
469 ASSERT_WDEV_LOCK(wdev);
470
fffd0934
JB		 471 switch (wdev->iftype) {
472 case NL80211_IFTYPE_AP:
473 case NL80211_IFTYPE_AP_VLAN:
074ac8df 474 case NL80211_IFTYPE_P2P_GO:
fffd0934
JB		 475 break;
476 case NL80211_IFTYPE_ADHOC:
477 if (!wdev->current_bss)
478 return -ENOLINK;
479 break;
480 case NL80211_IFTYPE_STATION:
074ac8df 481 case NL80211_IFTYPE_P2P_CLIENT:
fffd0934
JB		 482 if (wdev->sme_state != CFG80211_SME_CONNECTED)
483 return -ENOLINK;
484 break;
485 default:
486 return -EINVAL;
487 }
488
489 return 0;
490}
491
55682965
JB		 492static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
493 struct cfg80211_registered_device *dev)
494{
495 void *hdr;
ee688b00
JB		 496 struct nlattr *nl_bands, *nl_band;
497 struct nlattr *nl_freqs, *nl_freq;
498 struct nlattr *nl_rates, *nl_rate;
f59ac048 499 struct nlattr *nl_modes;
8fdc621d 500 struct nlattr *nl_cmds;
ee688b00
JB		 501 enum ieee80211_band band;
502 struct ieee80211_channel *chan;
503 struct ieee80211_rate *rate;
504 int i;
f59ac048 505 u16 ifmodes = dev->wiphy.interface_modes;
2e161f78
JB		 506 const struct ieee80211_txrx_stypes *mgmt_stypes =
507 dev->wiphy.mgmt_stypes;
55682965
JB		 508
509 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
510 if (!hdr)
511 return -1;
512
b5850a7a 513 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 514 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 515
f5ea9120
JB		 516 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
517 cfg80211_rdev_list_generation);
518
b9a5f8ca
JM		 519 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
520 dev->wiphy.retry_short);
521 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
522 dev->wiphy.retry_long);
523 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
524 dev->wiphy.frag_threshold);
525 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
526 dev->wiphy.rts_threshold);
81077e82
LT		 527 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
528 dev->wiphy.coverage_class);
b9a5f8ca 529
2a519311
JB		 530 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
531 dev->wiphy.max_scan_ssids);
18a83659
JB		 532 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
533 dev->wiphy.max_scan_ie_len);
ee688b00 534
e31b8213
JB		 535 if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
536 NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
537
25e47c18
JB		 538 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
539 sizeof(u32) * dev->wiphy.n_cipher_suites,
540 dev->wiphy.cipher_suites);
541
67fbb16b
SO		 542 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
543 dev->wiphy.max_num_pmkids);
544
c0692b8f
JB		 545 if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
546 NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
547
f59ac048
LR		 548 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
549 if (!nl_modes)
550 goto nla_put_failure;
551
552 i = 0;
553 while (ifmodes) {
554 if (ifmodes & 1)
555 NLA_PUT_FLAG(msg, i);
556 ifmodes >>= 1;
557 i++;
558 }
559
560 nla_nest_end(msg, nl_modes);
561
ee688b00
JB		 562 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
563 if (!nl_bands)
564 goto nla_put_failure;
565
566 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
567 if (!dev->wiphy.bands[band])
568 continue;
569
570 nl_band = nla_nest_start(msg, band);
571 if (!nl_band)
572 goto nla_put_failure;
573
d51626df
JB		 574 /* add HT info */
575 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
576 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
577 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
578 &dev->wiphy.bands[band]->ht_cap.mcs);
579 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
580 dev->wiphy.bands[band]->ht_cap.cap);
581 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
582 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
583 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
584 dev->wiphy.bands[band]->ht_cap.ampdu_density);
585 }
586
ee688b00
JB		 587 /* add frequencies */
588 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
589 if (!nl_freqs)
590 goto nla_put_failure;
591
592 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
593 nl_freq = nla_nest_start(msg, i);
594 if (!nl_freq)
595 goto nla_put_failure;
596
597 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 598
599 if (nl80211_msg_put_channel(msg, chan))
600 goto nla_put_failure;
e2f367f2 601
ee688b00
JB		 602 nla_nest_end(msg, nl_freq);
603 }
604
605 nla_nest_end(msg, nl_freqs);
606
607 /* add bitrates */
608 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
609 if (!nl_rates)
610 goto nla_put_failure;
611
612 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
613 nl_rate = nla_nest_start(msg, i);
614 if (!nl_rate)
615 goto nla_put_failure;
616
617 rate = &dev->wiphy.bands[band]->bitrates[i];
618 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
619 rate->bitrate);
620 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
621 NLA_PUT_FLAG(msg,
622 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
623
624 nla_nest_end(msg, nl_rate);
625 }
626
627 nla_nest_end(msg, nl_rates);
628
629 nla_nest_end(msg, nl_band);
630 }
631 nla_nest_end(msg, nl_bands);
632
8fdc621d
JB		 633 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
634 if (!nl_cmds)
635 goto nla_put_failure;
636
637 i = 0;
638#define CMD(op, n) \
639 do { \
640 if (dev->ops->op) { \
641 i++; \
642 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
643 } \
644 } while (0)
645
646 CMD(add_virtual_intf, NEW_INTERFACE);
647 CMD(change_virtual_intf, SET_INTERFACE);
648 CMD(add_key, NEW_KEY);
649 CMD(add_beacon, NEW_BEACON);
650 CMD(add_station, NEW_STATION);
651 CMD(add_mpath, NEW_MPATH);
652 CMD(set_mesh_params, SET_MESH_PARAMS);
653 CMD(change_bss, SET_BSS);
636a5d36
JM		 654 CMD(auth, AUTHENTICATE);
655 CMD(assoc, ASSOCIATE);
656 CMD(deauth, DEAUTHENTICATE);
657 CMD(disassoc, DISASSOCIATE);
04a773ad 658 CMD(join_ibss, JOIN_IBSS);
67fbb16b
SO		 659 CMD(set_pmksa, SET_PMKSA);
660 CMD(del_pmksa, DEL_PMKSA);
661 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 662 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 663 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
2e161f78 664 CMD(mgmt_tx, FRAME);
5be83de5 665 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 666 i++;
667 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
668 }
f444de05 669 CMD(set_channel, SET_CHANNEL);
e8347eba 670 CMD(set_wds_peer, SET_WDS_PEER);
8fdc621d
JB		 671
672#undef CMD
b23aa676 673
6829c878 674 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 675 i++;
676 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
677 }
678
6829c878 679 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 680 i++;
681 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
682 }
683
8fdc621d
JB		 684 nla_nest_end(msg, nl_cmds);
685
2e161f78
JB		 686 if (mgmt_stypes) {
687 u16 stypes;
688 struct nlattr *nl_ftypes, *nl_ifs;
689 enum nl80211_iftype ift;
690
691 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
692 if (!nl_ifs)
693 goto nla_put_failure;
694
695 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
696 nl_ftypes = nla_nest_start(msg, ift);
697 if (!nl_ftypes)
698 goto nla_put_failure;
699 i = 0;
700 stypes = mgmt_stypes[ift].tx;
701 while (stypes) {
702 if (stypes & 1)
703 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
704 (i << 4) | IEEE80211_FTYPE_MGMT);
705 stypes >>= 1;
706 i++;
707 }
708 nla_nest_end(msg, nl_ftypes);
709 }
710
74b70a4e
JB		 711 nla_nest_end(msg, nl_ifs);
712
2e161f78
JB		 713 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
714 if (!nl_ifs)
715 goto nla_put_failure;
716
717 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
718 nl_ftypes = nla_nest_start(msg, ift);
719 if (!nl_ftypes)
720 goto nla_put_failure;
721 i = 0;
722 stypes = mgmt_stypes[ift].rx;
723 while (stypes) {
724 if (stypes & 1)
725 NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE,
726 (i << 4) | IEEE80211_FTYPE_MGMT);
727 stypes >>= 1;
728 i++;
729 }
730 nla_nest_end(msg, nl_ftypes);
731 }
732 nla_nest_end(msg, nl_ifs);
733 }
734
55682965
JB		 735 return genlmsg_end(msg, hdr);
736
737 nla_put_failure:
bc3ed28c
TG		 738 genlmsg_cancel(msg, hdr);
739 return -EMSGSIZE;
55682965
JB		 740}
741
742static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
743{
744 int idx = 0;
745 int start = cb->args[0];
746 struct cfg80211_registered_device *dev;
747
a1794390 748 mutex_lock(&cfg80211_mutex);
79c97e97 749 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 750 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
751 continue;
b4637271 752 if (++idx <= start)
55682965
JB		 753 continue;
754 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
755 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 756 dev) < 0) {
757 idx--;
55682965 758 break;
b4637271 759 }
55682965 760 }
a1794390 761 mutex_unlock(&cfg80211_mutex);
55682965
JB		 762
763 cb->args[0] = idx;
764
765 return skb->len;
766}
767
768static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
769{
770 struct sk_buff *msg;
4c476991 771 struct cfg80211_registered_device *dev = info->user_ptr[0];
55682965 772
fd2120ca 773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 774 if (!msg)
4c476991 775 return -ENOMEM;
55682965 776
4c476991
JB		 777 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
778 nlmsg_free(msg);
779 return -ENOBUFS;
780 }
55682965 781
134e6375 782 return genlmsg_reply(msg, info);
55682965
JB		 783}
784
31888487
JM		 785static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
786 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
787 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
788 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
789 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
790 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
791};
792
793static int parse_txq_params(struct nlattr *tb[],
794 struct ieee80211_txq_params *txq_params)
795{
796 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
797 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
798 !tb[NL80211_TXQ_ATTR_AIFS])
799 return -EINVAL;
800
801 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
802 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
803 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
804 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
805 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
806
807 return 0;
808}
809
f444de05
JB		 810static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
811{
812 /*
813 * You can only set the channel explicitly for AP, mesh
814 * and WDS type interfaces; all others have their channel
815 * managed via their respective "establish a connection"
816 * command (connect, join, ...)
817 *
818 * Monitors are special as they are normally slaved to
819 * whatever else is going on, so they behave as though
820 * you tried setting the wiphy channel itself.
821 */
822 return !wdev ||
823 wdev->iftype == NL80211_IFTYPE_AP ||
824 wdev->iftype == NL80211_IFTYPE_WDS ||
825 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
074ac8df
JB		 826 wdev->iftype == NL80211_IFTYPE_MONITOR ||
827 wdev->iftype == NL80211_IFTYPE_P2P_GO;
f444de05
JB		 828}
829
830static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
831 struct wireless_dev *wdev,
832 struct genl_info *info)
833{
834 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
835 u32 freq;
836 int result;
837
838 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
839 return -EINVAL;
840
841 if (!nl80211_can_set_dev_channel(wdev))
842 return -EOPNOTSUPP;
843
844 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
845 channel_type = nla_get_u32(info->attrs[
846 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
847 if (channel_type != NL80211_CHAN_NO_HT &&
848 channel_type != NL80211_CHAN_HT20 &&
849 channel_type != NL80211_CHAN_HT40PLUS &&
850 channel_type != NL80211_CHAN_HT40MINUS)
851 return -EINVAL;
852 }
853
854 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
855
856 mutex_lock(&rdev->devlist_mtx);
857 if (wdev) {
858 wdev_lock(wdev);
859 result = cfg80211_set_freq(rdev, wdev, freq, channel_type);
860 wdev_unlock(wdev);
861 } else {
862 result = cfg80211_set_freq(rdev, NULL, freq, channel_type);
863 }
864 mutex_unlock(&rdev->devlist_mtx);
865
866 return result;
867}
868
869static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
870{
4c476991
JB		 871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
872 struct net_device *netdev = info->user_ptr[1];
f444de05 873
4c476991 874 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
f444de05
JB		 875}
876
e8347eba
BJ		 877static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
878{
43b19952
JB		 879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
880 struct net_device *dev = info->user_ptr[1];
881 struct wireless_dev *wdev = dev->ieee80211_ptr;
388ac775 882 const u8 *bssid;
e8347eba
BJ		 883
884 if (!info->attrs[NL80211_ATTR_MAC])
885 return -EINVAL;
886
43b19952
JB		 887 if (netif_running(dev))
888 return -EBUSY;
e8347eba 889
43b19952
JB		 890 if (!rdev->ops->set_wds_peer)
891 return -EOPNOTSUPP;
e8347eba 892
43b19952
JB		 893 if (wdev->iftype != NL80211_IFTYPE_WDS)
894 return -EOPNOTSUPP;
e8347eba
BJ		 895
896 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
43b19952 897 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
e8347eba
BJ		 898}
899
900
55682965
JB		 901static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
902{
903 struct cfg80211_registered_device *rdev;
f444de05
JB		 904 struct net_device *netdev = NULL;
905 struct wireless_dev *wdev;
a1e567c8 906 int result = 0, rem_txq_params = 0;
31888487 907 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 908 u32 changed;
909 u8 retry_short = 0, retry_long = 0;
910 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 911 u8 coverage_class = 0;
55682965 912
f444de05
JB		 913 /*
914 * Try to find the wiphy and netdev. Normally this
915 * function shouldn't need the netdev, but this is
916 * done for backward compatibility -- previously
917 * setting the channel was done per wiphy, but now
918 * it is per netdev. Previous userland like hostapd
919 * also passed a netdev to set_wiphy, so that it is
920 * possible to let that go to the right netdev!
921 */
4bbf4d56
JB		 922 mutex_lock(&cfg80211_mutex);
923
f444de05
JB		 924 if (info->attrs[NL80211_ATTR_IFINDEX]) {
925 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
926
927 netdev = dev_get_by_index(genl_info_net(info), ifindex);
928 if (netdev && netdev->ieee80211_ptr) {
929 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
930 mutex_lock(&rdev->mtx);
931 } else
932 netdev = NULL;
4bbf4d56
JB		 933 }
934
f444de05
JB		 935 if (!netdev) {
936 rdev = __cfg80211_rdev_from_info(info);
937 if (IS_ERR(rdev)) {
938 mutex_unlock(&cfg80211_mutex);
4c476991 939 return PTR_ERR(rdev);
f444de05
JB		 940 }
941 wdev = NULL;
942 netdev = NULL;
943 result = 0;
944
945 mutex_lock(&rdev->mtx);
946 } else if (netif_running(netdev) &&
947 nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
948 wdev = netdev->ieee80211_ptr;
949 else
950 wdev = NULL;
951
952 /*
953 * end workaround code, by now the rdev is available
954 * and locked, and wdev may or may not be NULL.
955 */
4bbf4d56
JB		 956
957 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 958 result = cfg80211_dev_rename(
959 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 960
961 mutex_unlock(&cfg80211_mutex);
962
963 if (result)
964 goto bad_res;
31888487
JM		 965
966 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
967 struct ieee80211_txq_params txq_params;
968 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
969
970 if (!rdev->ops->set_txq_params) {
971 result = -EOPNOTSUPP;
972 goto bad_res;
973 }
974
975 nla_for_each_nested(nl_txq_params,
976 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
977 rem_txq_params) {
978 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
979 nla_data(nl_txq_params),
980 nla_len(nl_txq_params),
981 txq_params_policy);
982 result = parse_txq_params(tb, &txq_params);
983 if (result)
984 goto bad_res;
985
986 result = rdev->ops->set_txq_params(&rdev->wiphy,
987 &txq_params);
988 if (result)
989 goto bad_res;
990 }
991 }
55682965 992
72bdcf34 993 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
f444de05 994 result = __nl80211_set_channel(rdev, wdev, info);
72bdcf34
JM		 995 if (result)
996 goto bad_res;
997 }
998
98d2ff8b
JO		 999 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1000 enum nl80211_tx_power_setting type;
1001 int idx, mbm = 0;
1002
1003 if (!rdev->ops->set_tx_power) {
60ea385f 1004 result = -EOPNOTSUPP;
98d2ff8b
JO		 1005 goto bad_res;
1006 }
1007
1008 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1009 type = nla_get_u32(info->attrs[idx]);
1010
1011 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1012 (type != NL80211_TX_POWER_AUTOMATIC)) {
1013 result = -EINVAL;
1014 goto bad_res;
1015 }
1016
1017 if (type != NL80211_TX_POWER_AUTOMATIC) {
1018 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1019 mbm = nla_get_u32(info->attrs[idx]);
1020 }
1021
1022 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1023 if (result)
1024 goto bad_res;
1025 }
1026
b9a5f8ca
JM		 1027 changed = 0;
1028
1029 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1030 retry_short = nla_get_u8(
1031 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1032 if (retry_short == 0) {
1033 result = -EINVAL;
1034 goto bad_res;
1035 }
1036 changed |= WIPHY_PARAM_RETRY_SHORT;
1037 }
1038
1039 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1040 retry_long = nla_get_u8(
1041 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1042 if (retry_long == 0) {
1043 result = -EINVAL;
1044 goto bad_res;
1045 }
1046 changed |= WIPHY_PARAM_RETRY_LONG;
1047 }
1048
1049 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1050 frag_threshold = nla_get_u32(
1051 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1052 if (frag_threshold < 256) {
1053 result = -EINVAL;
1054 goto bad_res;
1055 }
1056 if (frag_threshold != (u32) -1) {
1057 /*
1058 * Fragments (apart from the last one) are required to
1059 * have even length. Make the fragmentation code
1060 * simpler by stripping LSB should someone try to use
1061 * odd threshold value.
1062 */
1063 frag_threshold &= ~0x1;
1064 }
1065 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1066 }
1067
1068 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1069 rts_threshold = nla_get_u32(
1070 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1071 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1072 }
1073
81077e82
LT		 1074 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1075 coverage_class = nla_get_u8(
1076 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1077 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1078 }
1079
b9a5f8ca
JM		 1080 if (changed) {
1081 u8 old_retry_short, old_retry_long;
1082 u32 old_frag_threshold, old_rts_threshold;
81077e82 1083 u8 old_coverage_class;
b9a5f8ca
JM		 1084
1085 if (!rdev->ops->set_wiphy_params) {
1086 result = -EOPNOTSUPP;
1087 goto bad_res;
1088 }
1089
1090 old_retry_short = rdev->wiphy.retry_short;
1091 old_retry_long = rdev->wiphy.retry_long;
1092 old_frag_threshold = rdev->wiphy.frag_threshold;
1093 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 1094 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 1095
1096 if (changed & WIPHY_PARAM_RETRY_SHORT)
1097 rdev->wiphy.retry_short = retry_short;
1098 if (changed & WIPHY_PARAM_RETRY_LONG)
1099 rdev->wiphy.retry_long = retry_long;
1100 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1101 rdev->wiphy.frag_threshold = frag_threshold;
1102 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1103 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 1104 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1105 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 1106
1107 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1108 if (result) {
1109 rdev->wiphy.retry_short = old_retry_short;
1110 rdev->wiphy.retry_long = old_retry_long;
1111 rdev->wiphy.frag_threshold = old_frag_threshold;
1112 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 1113 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 1114 }
1115 }
72bdcf34 1116
306d6112 1117 bad_res:
4bbf4d56 1118 mutex_unlock(&rdev->mtx);
f444de05
JB		 1119 if (netdev)
1120 dev_put(netdev);
55682965
JB		 1121 return result;
1122}
1123
1124
1125static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 1126 struct cfg80211_registered_device *rdev,
55682965
JB		 1127 struct net_device *dev)
1128{
1129 void *hdr;
1130
1131 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1132 if (!hdr)
1133 return -1;
1134
1135 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 1136 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 1137 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 1138 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 1139
1140 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
1141 rdev->devlist_generation ^
1142 (cfg80211_rdev_list_generation << 2));
1143
55682965
JB		 1144 return genlmsg_end(msg, hdr);
1145
1146 nla_put_failure:
bc3ed28c
TG		 1147 genlmsg_cancel(msg, hdr);
1148 return -EMSGSIZE;
55682965
JB		 1149}
1150
1151static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1152{
1153 int wp_idx = 0;
1154 int if_idx = 0;
1155 int wp_start = cb->args[0];
1156 int if_start = cb->args[1];
f5ea9120 1157 struct cfg80211_registered_device *rdev;
55682965
JB		 1158 struct wireless_dev *wdev;
1159
a1794390 1160 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 1161 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1162 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 1163 continue;
bba95fef
JB		 1164 if (wp_idx < wp_start) {
1165 wp_idx++;
55682965 1166 continue;
bba95fef 1167 }
55682965
JB		 1168 if_idx = 0;
1169
f5ea9120
JB		 1170 mutex_lock(&rdev->devlist_mtx);
1171 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 1172 if (if_idx < if_start) {
1173 if_idx++;
55682965 1174 continue;
bba95fef 1175 }
55682965
JB		 1176 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1177 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 1178 rdev, wdev->netdev) < 0) {
1179 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1180 goto out;
1181 }
1182 if_idx++;
55682965 1183 }
f5ea9120 1184 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 1185
1186 wp_idx++;
55682965 1187 }
bba95fef 1188 out:
a1794390 1189 mutex_unlock(&cfg80211_mutex);
55682965
JB		 1190
1191 cb->args[0] = wp_idx;
1192 cb->args[1] = if_idx;
1193
1194 return skb->len;
1195}
1196
1197static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1198{
1199 struct sk_buff *msg;
4c476991
JB		 1200 struct cfg80211_registered_device *dev = info->user_ptr[0];
1201 struct net_device *netdev = info->user_ptr[1];
55682965 1202
fd2120ca 1203 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965 1204 if (!msg)
4c476991 1205 return -ENOMEM;
55682965 1206
d726405a 1207 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1208 dev, netdev) < 0) {
1209 nlmsg_free(msg);
1210 return -ENOBUFS;
1211 }
55682965 1212
134e6375 1213 return genlmsg_reply(msg, info);
55682965
JB		 1214}
1215
66f7ac50
MW		 1216static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1217 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1218 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1219 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1220 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1221 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1222};
1223
1224static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1225{
1226 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1227 int flag;
1228
1229 *mntrflags = 0;
1230
1231 if (!nla)
1232 return -EINVAL;
1233
1234 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1235 nla, mntr_flags_policy))
1236 return -EINVAL;
1237
1238 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1239 if (flags[flag])
1240 *mntrflags |= (1<<flag);
1241
1242 return 0;
1243}
1244
9bc383de 1245static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1246 struct net_device *netdev, u8 use_4addr,
1247 enum nl80211_iftype iftype)
9bc383de 1248{
ad4bb6f8 1249 if (!use_4addr) {
f350a0a8 1250 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
ad4bb6f8 1251 return -EBUSY;
9bc383de 1252 return 0;
ad4bb6f8 1253 }
9bc383de
JB		 1254
1255 switch (iftype) {
1256 case NL80211_IFTYPE_AP_VLAN:
1257 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1258 return 0;
1259 break;
1260 case NL80211_IFTYPE_STATION:
1261 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1262 return 0;
1263 break;
1264 default:
1265 break;
1266 }
1267
1268 return -EOPNOTSUPP;
1269}
1270
55682965
JB		 1271static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1272{
4c476991 1273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1274 struct vif_params params;
e36d56b6 1275 int err;
04a773ad 1276 enum nl80211_iftype otype, ntype;
4c476991 1277 struct net_device *dev = info->user_ptr[1];
92ffe055 1278 u32 _flags, *flags = NULL;
ac7f9cfa 1279 bool change = false;
55682965 1280
2ec600d6
LCC		 1281 memset(&params, 0, sizeof(params));
1282
04a773ad 1283 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1284
723b038d 1285 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1286 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1287 if (otype != ntype)
ac7f9cfa 1288 change = true;
4c476991
JB		 1289 if (ntype > NL80211_IFTYPE_MAX)
1290 return -EINVAL;
723b038d
JB		 1291 }
1292
92ffe055 1293 if (info->attrs[NL80211_ATTR_MESH_ID]) {
4c476991
JB		 1294 if (ntype != NL80211_IFTYPE_MESH_POINT)
1295 return -EINVAL;
2ec600d6
LCC		 1296 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1297 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 1298 change = true;
2ec600d6
LCC		 1299 }
1300
8b787643
FF		 1301 if (info->attrs[NL80211_ATTR_4ADDR]) {
1302 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1303 change = true;
ad4bb6f8 1304 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de 1305 if (err)
4c476991 1306 return err;
8b787643
FF		 1307 } else {
1308 params.use_4addr = -1;
1309 }
1310
92ffe055 1311 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
4c476991
JB		 1312 if (ntype != NL80211_IFTYPE_MONITOR)
1313 return -EINVAL;
92ffe055
JB		 1314 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1315 &_flags);
ac7f9cfa 1316 if (err)
4c476991 1317 return err;
ac7f9cfa
JB		 1318
1319 flags = &_flags;
1320 change = true;
92ffe055 1321 }
3b85875a 1322
ac7f9cfa 1323 if (change)
3d54d255 1324 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1325 else
1326 err = 0;
60719ffd 1327
9bc383de
JB		 1328 if (!err && params.use_4addr != -1)
1329 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1330
55682965
JB		 1331 return err;
1332}
1333
1334static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1335{
4c476991 1336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 1337 struct vif_params params;
55682965
JB		 1338 int err;
1339 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1340 u32 flags;
55682965 1341
2ec600d6
LCC		 1342 memset(&params, 0, sizeof(params));
1343
55682965
JB		 1344 if (!info->attrs[NL80211_ATTR_IFNAME])
1345 return -EINVAL;
1346
1347 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1348 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1349 if (type > NL80211_IFTYPE_MAX)
1350 return -EINVAL;
1351 }
1352
79c97e97 1353 if (!rdev->ops->add_virtual_intf ||
4c476991
JB		 1354 !(rdev->wiphy.interface_modes & (1 << type)))
1355 return -EOPNOTSUPP;
55682965 1356
2ec600d6
LCC		 1357 if (type == NL80211_IFTYPE_MESH_POINT &&
1358 info->attrs[NL80211_ATTR_MESH_ID]) {
1359 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1360 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1361 }
1362
9bc383de 1363 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1364 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1365 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de 1366 if (err)
4c476991 1367 return err;
9bc383de 1368 }
8b787643 1369
66f7ac50
MW		 1370 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1371 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1372 &flags);
79c97e97 1373 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1374 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1375 type, err ? NULL : &flags, &params);
2ec600d6 1376
55682965
JB		 1377 return err;
1378}
1379
1380static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1381{
4c476991
JB		 1382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1383 struct net_device *dev = info->user_ptr[1];
55682965 1384
4c476991
JB		 1385 if (!rdev->ops->del_virtual_intf)
1386 return -EOPNOTSUPP;
55682965 1387
4c476991 1388 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1389}
1390
41ade00f
JB		 1391struct get_key_cookie {
1392 struct sk_buff *msg;
1393 int error;
b9454e83 1394 int idx;
41ade00f
JB		 1395};
1396
1397static void get_key_callback(void *c, struct key_params *params)
1398{
b9454e83 1399 struct nlattr *key;
41ade00f
JB		 1400 struct get_key_cookie *cookie = c;
1401
1402 if (params->key)
1403 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1404 params->key_len, params->key);
1405
1406 if (params->seq)
1407 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1408 params->seq_len, params->seq);
1409
1410 if (params->cipher)
1411 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1412 params->cipher);
1413
b9454e83
JB		 1414 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1415 if (!key)
1416 goto nla_put_failure;
1417
1418 if (params->key)
1419 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1420 params->key_len, params->key);
1421
1422 if (params->seq)
1423 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1424 params->seq_len, params->seq);
1425
1426 if (params->cipher)
1427 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1428 params->cipher);
1429
1430 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1431
1432 nla_nest_end(cookie->msg, key);
1433
41ade00f
JB		 1434 return;
1435 nla_put_failure:
1436 cookie->error = 1;
1437}
1438
1439static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1440{
4c476991 1441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1442 int err;
4c476991 1443 struct net_device *dev = info->user_ptr[1];
41ade00f 1444 u8 key_idx = 0;
e31b8213
JB		 1445 const u8 *mac_addr = NULL;
1446 bool pairwise;
41ade00f
JB		 1447 struct get_key_cookie cookie = {
1448 .error = 0,
1449 };
1450 void *hdr;
1451 struct sk_buff *msg;
1452
1453 if (info->attrs[NL80211_ATTR_KEY_IDX])
1454 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1455
3cfcf6ac 1456 if (key_idx > 5)
41ade00f
JB		 1457 return -EINVAL;
1458
1459 if (info->attrs[NL80211_ATTR_MAC])
1460 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1461
e31b8213
JB		 1462 pairwise = !!mac_addr;
1463 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
1464 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
1465 if (kt >= NUM_NL80211_KEYTYPES)
1466 return -EINVAL;
1467 if (kt != NL80211_KEYTYPE_GROUP &&
1468 kt != NL80211_KEYTYPE_PAIRWISE)
1469 return -EINVAL;
1470 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
1471 }
1472
4c476991
JB		 1473 if (!rdev->ops->get_key)
1474 return -EOPNOTSUPP;
41ade00f 1475
fd2120ca 1476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 1477 if (!msg)
1478 return -ENOMEM;
41ade00f
JB		 1479
1480 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1481 NL80211_CMD_NEW_KEY);
4c476991
JB		 1482 if (IS_ERR(hdr))
1483 return PTR_ERR(hdr);
41ade00f
JB		 1484
1485 cookie.msg = msg;
b9454e83 1486 cookie.idx = key_idx;
41ade00f
JB		 1487
1488 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1489 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1490 if (mac_addr)
1491 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1492
e31b8213
JB		 1493 if (pairwise && mac_addr &&
1494 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1495 return -ENOENT;
1496
1497 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
1498 mac_addr, &cookie, get_key_callback);
41ade00f
JB		 1499
1500 if (err)
6c95e2a2 1501 goto free_msg;
41ade00f
JB		 1502
1503 if (cookie.error)
1504 goto nla_put_failure;
1505
1506 genlmsg_end(msg, hdr);
4c476991 1507 return genlmsg_reply(msg, info);
41ade00f
JB		 1508
1509 nla_put_failure:
1510 err = -ENOBUFS;
6c95e2a2 1511 free_msg:
41ade00f 1512 nlmsg_free(msg);
41ade00f
JB		 1513 return err;
1514}
1515
1516static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1517{
4c476991 1518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
b9454e83 1519 struct key_parse key;
41ade00f 1520 int err;
4c476991 1521 struct net_device *dev = info->user_ptr[1];
3cfcf6ac
JM		 1522 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1523 u8 key_index);
41ade00f 1524
b9454e83
JB		 1525 err = nl80211_parse_key(info, &key);
1526 if (err)
1527 return err;
41ade00f 1528
b9454e83 1529 if (key.idx < 0)
41ade00f
JB		 1530 return -EINVAL;
1531
b9454e83
JB		 1532 /* only support setting default key */
1533 if (!key.def && !key.defmgmt)
41ade00f
JB		 1534 return -EINVAL;
1535
b9454e83 1536 if (key.def)
79c97e97 1537 func = rdev->ops->set_default_key;
3cfcf6ac 1538 else
79c97e97 1539 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac 1540
4c476991
JB		 1541 if (!func)
1542 return -EOPNOTSUPP;
41ade00f 1543
fffd0934
JB		 1544 wdev_lock(dev->ieee80211_ptr);
1545 err = nl80211_key_allowed(dev->ieee80211_ptr);
1546 if (!err)
1547 err = func(&rdev->wiphy, dev, key.idx);
1548
3d23e349 1549#ifdef CONFIG_CFG80211_WEXT
08645126 1550 if (!err) {
79c97e97 1551 if (func == rdev->ops->set_default_key)
b9454e83 1552 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1553 else
b9454e83 1554 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1555 }
1556#endif
fffd0934 1557 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1558
41ade00f
JB		 1559 return err;
1560}
1561
1562static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1563{
4c476991 1564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
fffd0934 1565 int err;
4c476991 1566 struct net_device *dev = info->user_ptr[1];
b9454e83 1567 struct key_parse key;
e31b8213 1568 const u8 *mac_addr = NULL;
41ade00f 1569
b9454e83
JB		 1570 err = nl80211_parse_key(info, &key);
1571 if (err)
1572 return err;
41ade00f 1573
b9454e83 1574 if (!key.p.key)
41ade00f
JB		 1575 return -EINVAL;
1576
41ade00f
JB		 1577 if (info->attrs[NL80211_ATTR_MAC])
1578 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1579
e31b8213
JB		 1580 if (key.type == -1) {
1581 if (mac_addr)
1582 key.type = NL80211_KEYTYPE_PAIRWISE;
1583 else
1584 key.type = NL80211_KEYTYPE_GROUP;
1585 }
1586
1587 /* for now */
1588 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1589 key.type != NL80211_KEYTYPE_GROUP)
1590 return -EINVAL;
1591
4c476991
JB		 1592 if (!rdev->ops->add_key)
1593 return -EOPNOTSUPP;
25e47c18 1594
e31b8213
JB		 1595 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
1596 key.type == NL80211_KEYTYPE_PAIRWISE,
1597 mac_addr))
4c476991 1598 return -EINVAL;
41ade00f 1599
fffd0934
JB		 1600 wdev_lock(dev->ieee80211_ptr);
1601 err = nl80211_key_allowed(dev->ieee80211_ptr);
1602 if (!err)
1603 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
e31b8213 1604 key.type == NL80211_KEYTYPE_PAIRWISE,
fffd0934
JB		 1605 mac_addr, &key.p);
1606 wdev_unlock(dev->ieee80211_ptr);
41ade00f 1607
41ade00f
JB		 1608 return err;
1609}
1610
1611static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1612{
4c476991 1613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
41ade00f 1614 int err;
4c476991 1615 struct net_device *dev = info->user_ptr[1];
41ade00f 1616 u8 *mac_addr = NULL;
b9454e83 1617 struct key_parse key;
41ade00f 1618
b9454e83
JB		 1619 err = nl80211_parse_key(info, &key);
1620 if (err)
1621 return err;
41ade00f
JB		 1622
1623 if (info->attrs[NL80211_ATTR_MAC])
1624 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1625
e31b8213
JB		 1626 if (key.type == -1) {
1627 if (mac_addr)
1628 key.type = NL80211_KEYTYPE_PAIRWISE;
1629 else
1630 key.type = NL80211_KEYTYPE_GROUP;
1631 }
1632
1633 /* for now */
1634 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
1635 key.type != NL80211_KEYTYPE_GROUP)
1636 return -EINVAL;
1637
4c476991
JB		 1638 if (!rdev->ops->del_key)
1639 return -EOPNOTSUPP;
41ade00f 1640
fffd0934
JB		 1641 wdev_lock(dev->ieee80211_ptr);
1642 err = nl80211_key_allowed(dev->ieee80211_ptr);
e31b8213
JB		 1643
1644 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
1645 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
1646 err = -ENOENT;
1647
fffd0934 1648 if (!err)
e31b8213
JB		 1649 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
1650 key.type == NL80211_KEYTYPE_PAIRWISE,
1651 mac_addr);
41ade00f 1652
3d23e349 1653#ifdef CONFIG_CFG80211_WEXT
08645126 1654 if (!err) {
b9454e83 1655 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1656 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1657 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1658 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1659 }
1660#endif
fffd0934 1661 wdev_unlock(dev->ieee80211_ptr);
08645126 1662
41ade00f
JB		 1663 return err;
1664}
1665
ed1b6cc7
JB		 1666static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1667{
1668 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1669 struct beacon_parameters *info);
4c476991
JB		 1670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1671 struct net_device *dev = info->user_ptr[1];
ed1b6cc7
JB		 1672 struct beacon_parameters params;
1673 int haveinfo = 0;
1674
f4a11bb0
JB		 1675 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1676 return -EINVAL;
1677
074ac8df 1678 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1679 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1680 return -EOPNOTSUPP;
eec60b03 1681
ed1b6cc7
JB		 1682 switch (info->genlhdr->cmd) {
1683 case NL80211_CMD_NEW_BEACON:
1684 /* these are required for NEW_BEACON */
1685 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1686 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
4c476991
JB		 1687 !info->attrs[NL80211_ATTR_BEACON_HEAD])
1688 return -EINVAL;
ed1b6cc7 1689
79c97e97 1690 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1691 break;
1692 case NL80211_CMD_SET_BEACON:
79c97e97 1693 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1694 break;
1695 default:
1696 WARN_ON(1);
4c476991 1697 return -EOPNOTSUPP;
ed1b6cc7
JB		 1698 }
1699
4c476991
JB		 1700 if (!call)
1701 return -EOPNOTSUPP;
ed1b6cc7
JB		 1702
1703 memset(&params, 0, sizeof(params));
1704
1705 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1706 params.interval =
1707 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1708 haveinfo = 1;
1709 }
1710
1711 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1712 params.dtim_period =
1713 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1714 haveinfo = 1;
1715 }
1716
1717 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1718 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1719 params.head_len =
1720 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1721 haveinfo = 1;
1722 }
1723
1724 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1725 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1726 params.tail_len =
1727 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1728 haveinfo = 1;
1729 }
1730
4c476991
JB		 1731 if (!haveinfo)
1732 return -EINVAL;
3b85875a 1733
4c476991 1734 return call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1735}
1736
1737static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1738{
4c476991
JB		 1739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1740 struct net_device *dev = info->user_ptr[1];
ed1b6cc7 1741
4c476991
JB		 1742 if (!rdev->ops->del_beacon)
1743 return -EOPNOTSUPP;
ed1b6cc7 1744
074ac8df 1745 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 1746 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
1747 return -EOPNOTSUPP;
3b85875a 1748
4c476991 1749 return rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1750}
1751
5727ef1b
JB		 1752static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1753 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1754 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1755 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1756 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1757};
1758
eccb8e8f
JB		 1759static int parse_station_flags(struct genl_info *info,
1760 struct station_parameters *params)
5727ef1b
JB		 1761{
1762 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1763 struct nlattr *nla;
5727ef1b
JB		 1764 int flag;
1765
eccb8e8f
JB		 1766 /*
1767 * Try parsing the new attribute first so userspace
1768 * can specify both for older kernels.
1769 */
1770 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1771 if (nla) {
1772 struct nl80211_sta_flag_update *sta_flags;
1773
1774 sta_flags = nla_data(nla);
1775 params->sta_flags_mask = sta_flags->mask;
1776 params->sta_flags_set = sta_flags->set;
1777 if ((params->sta_flags_mask |
1778 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1779 return -EINVAL;
1780 return 0;
1781 }
1782
1783 /* if present, parse the old attribute */
5727ef1b 1784
eccb8e8f 1785 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1786 if (!nla)
1787 return 0;
1788
1789 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1790 nla, sta_flags_policy))
1791 return -EINVAL;
1792
eccb8e8f
JB		 1793 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1794 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1795
1796 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1797 if (flags[flag])
eccb8e8f 1798 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1799
1800 return 0;
1801}
1802
fd5b74dc
JB		 1803static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1804 int flags, struct net_device *dev,
98b62183 1805 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1806{
1807 void *hdr;
420e7fab
HR		 1808 struct nlattr *sinfoattr, *txrate;
1809 u16 bitrate;
fd5b74dc
JB		 1810
1811 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1812 if (!hdr)
1813 return -1;
1814
1815 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1816 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1817
f5ea9120
JB		 1818 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1819
2ec600d6
LCC		 1820 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1821 if (!sinfoattr)
fd5b74dc 1822 goto nla_put_failure;
2ec600d6
LCC		 1823 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1824 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1825 sinfo->inactive_time);
1826 if (sinfo->filled & STATION_INFO_RX_BYTES)
1827 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1828 sinfo->rx_bytes);
1829 if (sinfo->filled & STATION_INFO_TX_BYTES)
1830 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1831 sinfo->tx_bytes);
1832 if (sinfo->filled & STATION_INFO_LLID)
1833 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1834 sinfo->llid);
1835 if (sinfo->filled & STATION_INFO_PLID)
1836 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1837 sinfo->plid);
1838 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1839 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1840 sinfo->plink_state);
420e7fab
HR		 1841 if (sinfo->filled & STATION_INFO_SIGNAL)
1842 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1843 sinfo->signal);
1844 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1845 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1846 if (!txrate)
1847 goto nla_put_failure;
1848
254416aa
JL		 1849 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1850 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1851 if (bitrate > 0)
1852 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1853
420e7fab
HR		 1854 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1855 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1856 sinfo->txrate.mcs);
1857 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1858 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1859 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1860 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1861
1862 nla_nest_end(msg, txrate);
1863 }
98c8a60a
JM		 1864 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1865 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1866 sinfo->rx_packets);
1867 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1868 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1869 sinfo->tx_packets);
b206b4ef
BR		 1870 if (sinfo->filled & STATION_INFO_TX_RETRIES)
1871 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_RETRIES,
1872 sinfo->tx_retries);
1873 if (sinfo->filled & STATION_INFO_TX_FAILED)
1874 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_FAILED,
1875 sinfo->tx_failed);
2ec600d6 1876 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1877
1878 return genlmsg_end(msg, hdr);
1879
1880 nla_put_failure:
bc3ed28c
TG		 1881 genlmsg_cancel(msg, hdr);
1882 return -EMSGSIZE;
fd5b74dc
JB		 1883}
1884
2ec600d6 1885static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1886 struct netlink_callback *cb)
2ec600d6 1887{
2ec600d6
LCC		 1888 struct station_info sinfo;
1889 struct cfg80211_registered_device *dev;
bba95fef 1890 struct net_device *netdev;
2ec600d6 1891 u8 mac_addr[ETH_ALEN];
bba95fef 1892 int sta_idx = cb->args[1];
2ec600d6 1893 int err;
2ec600d6 1894
67748893
JB		 1895 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
1896 if (err)
1897 return err;
bba95fef
JB		 1898
1899 if (!dev->ops->dump_station) {
eec60b03 1900 err = -EOPNOTSUPP;
bba95fef
JB		 1901 goto out_err;
1902 }
1903
bba95fef
JB		 1904 while (1) {
1905 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1906 mac_addr, &sinfo);
1907 if (err == -ENOENT)
1908 break;
1909 if (err)
3b85875a 1910 goto out_err;
bba95fef
JB		 1911
1912 if (nl80211_send_station(skb,
1913 NETLINK_CB(cb->skb).pid,
1914 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1915 netdev, mac_addr,
1916 &sinfo) < 0)
1917 goto out;
1918
1919 sta_idx++;
1920 }
1921
1922
1923 out:
1924 cb->args[1] = sta_idx;
1925 err = skb->len;
bba95fef 1926 out_err:
67748893 1927 nl80211_finish_netdev_dump(dev);
bba95fef
JB		 1928
1929 return err;
2ec600d6 1930}
fd5b74dc 1931
5727ef1b
JB		 1932static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1933{
4c476991
JB		 1934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1935 struct net_device *dev = info->user_ptr[1];
2ec600d6 1936 struct station_info sinfo;
fd5b74dc
JB		 1937 struct sk_buff *msg;
1938 u8 *mac_addr = NULL;
4c476991 1939 int err;
fd5b74dc 1940
2ec600d6 1941 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1942
1943 if (!info->attrs[NL80211_ATTR_MAC])
1944 return -EINVAL;
1945
1946 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1947
4c476991
JB		 1948 if (!rdev->ops->get_station)
1949 return -EOPNOTSUPP;
3b85875a 1950
4c476991 1951 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
fd5b74dc 1952 if (err)
4c476991 1953 return err;
2ec600d6 1954
fd2120ca 1955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc 1956 if (!msg)
4c476991 1957 return -ENOMEM;
fd5b74dc
JB		 1958
1959 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 1960 dev, mac_addr, &sinfo) < 0) {
1961 nlmsg_free(msg);
1962 return -ENOBUFS;
1963 }
3b85875a 1964
4c476991 1965 return genlmsg_reply(msg, info);
5727ef1b
JB		 1966}
1967
1968/*
c258d2de 1969 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 1970 */
463d0183 1971static int get_vlan(struct genl_info *info,
5727ef1b
JB		 1972 struct cfg80211_registered_device *rdev,
1973 struct net_device **vlan)
1974{
463d0183 1975 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 1976 *vlan = NULL;
1977
1978 if (vlanattr) {
463d0183
JB		 1979 *vlan = dev_get_by_index(genl_info_net(info),
1980 nla_get_u32(vlanattr));
5727ef1b
JB		 1981 if (!*vlan)
1982 return -ENODEV;
1983 if (!(*vlan)->ieee80211_ptr)
1984 return -EINVAL;
1985 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1986 return -EINVAL;
c258d2de
FF		 1987 if (!netif_running(*vlan))
1988 return -ENETDOWN;
5727ef1b
JB		 1989 }
1990 return 0;
1991}
1992
1993static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1994{
4c476991 1995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 1996 int err;
4c476991 1997 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 1998 struct station_parameters params;
1999 u8 *mac_addr = NULL;
2000
2001 memset(&params, 0, sizeof(params));
2002
2003 params.listen_interval = -1;
2004
2005 if (info->attrs[NL80211_ATTR_STA_AID])
2006 return -EINVAL;
2007
2008 if (!info->attrs[NL80211_ATTR_MAC])
2009 return -EINVAL;
2010
2011 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2012
2013 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2014 params.supported_rates =
2015 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2016 params.supported_rates_len =
2017 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2018 }
2019
2020 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2021 params.listen_interval =
2022 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
2023
36aedc90
JM		 2024 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2025 params.ht_capa =
2026 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
2027
eccb8e8f 2028 if (parse_station_flags(info, &params))
5727ef1b
JB		 2029 return -EINVAL;
2030
2ec600d6
LCC		 2031 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
2032 params.plink_action =
2033 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
2034
463d0183 2035 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2036 if (err)
034d655e 2037 goto out;
a97f4424
JB		 2038
2039 /* validate settings */
2040 err = 0;
2041
2042 switch (dev->ieee80211_ptr->iftype) {
2043 case NL80211_IFTYPE_AP:
2044 case NL80211_IFTYPE_AP_VLAN:
074ac8df 2045 case NL80211_IFTYPE_P2P_GO:
a97f4424
JB		 2046 /* disallow mesh-specific things */
2047 if (params.plink_action)
2048 err = -EINVAL;
2049 break;
074ac8df 2050 case NL80211_IFTYPE_P2P_CLIENT:
a97f4424
JB		 2051 case NL80211_IFTYPE_STATION:
2052 /* disallow everything but AUTHORIZED flag */
2053 if (params.plink_action)
2054 err = -EINVAL;
2055 if (params.vlan)
2056 err = -EINVAL;
2057 if (params.supported_rates)
2058 err = -EINVAL;
2059 if (params.ht_capa)
2060 err = -EINVAL;
2061 if (params.listen_interval >= 0)
2062 err = -EINVAL;
2063 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
2064 err = -EINVAL;
2065 break;
2066 case NL80211_IFTYPE_MESH_POINT:
2067 /* disallow things mesh doesn't support */
2068 if (params.vlan)
2069 err = -EINVAL;
2070 if (params.ht_capa)
2071 err = -EINVAL;
2072 if (params.listen_interval >= 0)
2073 err = -EINVAL;
2074 if (params.supported_rates)
2075 err = -EINVAL;
2076 if (params.sta_flags_mask)
2077 err = -EINVAL;
2078 break;
2079 default:
2080 err = -EINVAL;
034d655e
JB		 2081 }
2082
5727ef1b
JB		 2083 if (err)
2084 goto out;
2085
79c97e97 2086 if (!rdev->ops->change_station) {
5727ef1b
JB		 2087 err = -EOPNOTSUPP;
2088 goto out;
2089 }
2090
79c97e97 2091 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2092
2093 out:
2094 if (params.vlan)
2095 dev_put(params.vlan);
3b85875a 2096
5727ef1b
JB		 2097 return err;
2098}
2099
2100static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
2101{
4c476991 2102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727ef1b 2103 int err;
4c476991 2104 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2105 struct station_parameters params;
2106 u8 *mac_addr = NULL;
2107
2108 memset(&params, 0, sizeof(params));
2109
2110 if (!info->attrs[NL80211_ATTR_MAC])
2111 return -EINVAL;
2112
5727ef1b
JB		 2113 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2114 return -EINVAL;
2115
2116 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2117 return -EINVAL;
2118
0e956c13
TLSC		 2119 if (!info->attrs[NL80211_ATTR_STA_AID])
2120 return -EINVAL;
2121
5727ef1b
JB		 2122 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2123 params.supported_rates =
2124 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2125 params.supported_rates_len =
2126 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2127 params.listen_interval =
2128 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2129
0e956c13
TLSC		 2130 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2131 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2132 return -EINVAL;
51b50fbe 2133
36aedc90
JM		 2134 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2135 params.ht_capa =
2136 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2137
eccb8e8f 2138 if (parse_station_flags(info, &params))
5727ef1b
JB		 2139 return -EINVAL;
2140
0e956c13 2141 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
074ac8df 2142 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 2143 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2144 return -EINVAL;
0e956c13 2145
463d0183 2146 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2147 if (err)
e80cf853 2148 goto out;
a97f4424
JB		 2149
2150 /* validate settings */
2151 err = 0;
2152
79c97e97 2153 if (!rdev->ops->add_station) {
5727ef1b
JB		 2154 err = -EOPNOTSUPP;
2155 goto out;
2156 }
2157
79c97e97 2158 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2159
2160 out:
2161 if (params.vlan)
2162 dev_put(params.vlan);
5727ef1b
JB		 2163 return err;
2164}
2165
2166static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2167{
4c476991
JB		 2168 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2169 struct net_device *dev = info->user_ptr[1];
5727ef1b
JB		 2170 u8 *mac_addr = NULL;
2171
2172 if (info->attrs[NL80211_ATTR_MAC])
2173 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2174
e80cf853 2175 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
d5d9de02 2176 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
074ac8df 2177 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4c476991
JB		 2178 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2179 return -EINVAL;
5727ef1b 2180
4c476991
JB		 2181 if (!rdev->ops->del_station)
2182 return -EOPNOTSUPP;
3b85875a 2183
4c476991 2184 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2185}
2186
2ec600d6
LCC		 2187static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2188 int flags, struct net_device *dev,
2189 u8 *dst, u8 *next_hop,
2190 struct mpath_info *pinfo)
2191{
2192 void *hdr;
2193 struct nlattr *pinfoattr;
2194
2195 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2196 if (!hdr)
2197 return -1;
2198
2199 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2200 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2201 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2202
f5ea9120
JB		 2203 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2204
2ec600d6
LCC		 2205 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2206 if (!pinfoattr)
2207 goto nla_put_failure;
2208 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2209 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2210 pinfo->frame_qlen);
d19b3bf6
RP		 2211 if (pinfo->filled & MPATH_INFO_SN)
2212 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2213 pinfo->sn);
2ec600d6
LCC		 2214 if (pinfo->filled & MPATH_INFO_METRIC)
2215 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2216 pinfo->metric);
2217 if (pinfo->filled & MPATH_INFO_EXPTIME)
2218 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2219 pinfo->exptime);
2220 if (pinfo->filled & MPATH_INFO_FLAGS)
2221 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2222 pinfo->flags);
2223 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2224 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2225 pinfo->discovery_timeout);
2226 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2227 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2228 pinfo->discovery_retries);
2229
2230 nla_nest_end(msg, pinfoattr);
2231
2232 return genlmsg_end(msg, hdr);
2233
2234 nla_put_failure:
bc3ed28c
TG		 2235 genlmsg_cancel(msg, hdr);
2236 return -EMSGSIZE;
2ec600d6
LCC		 2237}
2238
2239static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2240 struct netlink_callback *cb)
2ec600d6 2241{
2ec600d6
LCC		 2242 struct mpath_info pinfo;
2243 struct cfg80211_registered_device *dev;
bba95fef 2244 struct net_device *netdev;
2ec600d6
LCC		 2245 u8 dst[ETH_ALEN];
2246 u8 next_hop[ETH_ALEN];
bba95fef 2247 int path_idx = cb->args[1];
2ec600d6 2248 int err;
2ec600d6 2249
67748893
JB		 2250 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2251 if (err)
2252 return err;
bba95fef
JB		 2253
2254 if (!dev->ops->dump_mpath) {
eec60b03 2255 err = -EOPNOTSUPP;
bba95fef
JB		 2256 goto out_err;
2257 }
2258
eec60b03
JM		 2259 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2260 err = -EOPNOTSUPP;
0448b5fc 2261 goto out_err;
eec60b03
JM		 2262 }
2263
bba95fef
JB		 2264 while (1) {
2265 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2266 dst, next_hop, &pinfo);
2267 if (err == -ENOENT)
2ec600d6 2268 break;
bba95fef 2269 if (err)
3b85875a 2270 goto out_err;
2ec600d6 2271
bba95fef
JB		 2272 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2273 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2274 netdev, dst, next_hop,
2275 &pinfo) < 0)
2276 goto out;
2ec600d6 2277
bba95fef 2278 path_idx++;
2ec600d6 2279 }
2ec600d6 2280
2ec600d6 2281
bba95fef
JB		 2282 out:
2283 cb->args[1] = path_idx;
2284 err = skb->len;
bba95fef 2285 out_err:
67748893 2286 nl80211_finish_netdev_dump(dev);
bba95fef 2287 return err;
2ec600d6
LCC		 2288}
2289
2290static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2291{
4c476991 2292 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2ec600d6 2293 int err;
4c476991 2294 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2295 struct mpath_info pinfo;
2296 struct sk_buff *msg;
2297 u8 *dst = NULL;
2298 u8 next_hop[ETH_ALEN];
2299
2300 memset(&pinfo, 0, sizeof(pinfo));
2301
2302 if (!info->attrs[NL80211_ATTR_MAC])
2303 return -EINVAL;
2304
2305 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2306
4c476991
JB		 2307 if (!rdev->ops->get_mpath)
2308 return -EOPNOTSUPP;
2ec600d6 2309
4c476991
JB		 2310 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2311 return -EOPNOTSUPP;
eec60b03 2312
79c97e97 2313 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6 2314 if (err)
4c476991 2315 return err;
2ec600d6 2316
fd2120ca 2317 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6 2318 if (!msg)
4c476991 2319 return -ENOMEM;
2ec600d6
LCC		 2320
2321 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
4c476991
JB		 2322 dev, dst, next_hop, &pinfo) < 0) {
2323 nlmsg_free(msg);
2324 return -ENOBUFS;
2325 }
3b85875a 2326
4c476991 2327 return genlmsg_reply(msg, info);
2ec600d6
LCC		 2328}
2329
2330static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2331{
4c476991
JB		 2332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2333 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2334 u8 *dst = NULL;
2335 u8 *next_hop = NULL;
2336
2337 if (!info->attrs[NL80211_ATTR_MAC])
2338 return -EINVAL;
2339
2340 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2341 return -EINVAL;
2342
2343 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2344 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2345
4c476991
JB		 2346 if (!rdev->ops->change_mpath)
2347 return -EOPNOTSUPP;
35a8efe1 2348
4c476991
JB		 2349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2350 return -EOPNOTSUPP;
2ec600d6 2351
4c476991 2352 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6 2353}
4c476991 2354
2ec600d6
LCC		 2355static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2356{
4c476991
JB		 2357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2358 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2359 u8 *dst = NULL;
2360 u8 *next_hop = NULL;
2361
2362 if (!info->attrs[NL80211_ATTR_MAC])
2363 return -EINVAL;
2364
2365 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2366 return -EINVAL;
2367
2368 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2369 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2370
4c476991
JB		 2371 if (!rdev->ops->add_mpath)
2372 return -EOPNOTSUPP;
35a8efe1 2373
4c476991
JB		 2374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
2375 return -EOPNOTSUPP;
2ec600d6 2376
4c476991 2377 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2378}
2379
2380static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2381{
4c476991
JB		 2382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2383 struct net_device *dev = info->user_ptr[1];
2ec600d6
LCC		 2384 u8 *dst = NULL;
2385
2386 if (info->attrs[NL80211_ATTR_MAC])
2387 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2388
4c476991
JB		 2389 if (!rdev->ops->del_mpath)
2390 return -EOPNOTSUPP;
3b85875a 2391
4c476991 2392 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2393}
2394
9f1ba906
JM		 2395static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2396{
4c476991
JB		 2397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2398 struct net_device *dev = info->user_ptr[1];
9f1ba906
JM		 2399 struct bss_parameters params;
2400
2401 memset(&params, 0, sizeof(params));
2402 /* default to not changing parameters */
2403 params.use_cts_prot = -1;
2404 params.use_short_preamble = -1;
2405 params.use_short_slot_time = -1;
fd8aaaf3 2406 params.ap_isolate = -1;
9f1ba906
JM		 2407
2408 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2409 params.use_cts_prot =
2410 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2411 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2412 params.use_short_preamble =
2413 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2414 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2415 params.use_short_slot_time =
2416 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2417 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2418 params.basic_rates =
2419 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2420 params.basic_rates_len =
2421 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2422 }
fd8aaaf3
FF		 2423 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
2424 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
9f1ba906 2425
4c476991
JB		 2426 if (!rdev->ops->change_bss)
2427 return -EOPNOTSUPP;
9f1ba906 2428
074ac8df 2429 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4c476991
JB		 2430 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2431 return -EOPNOTSUPP;
3b85875a 2432
4c476991 2433 return rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2434}
2435
b54452b0 2436static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
b2e1b302
LR		 2437 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2438 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2439 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2440 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2441 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2442 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2443};
2444
2445static int parse_reg_rule(struct nlattr *tb[],
2446 struct ieee80211_reg_rule *reg_rule)
2447{
2448 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2449 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2450
2451 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2452 return -EINVAL;
2453 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2454 return -EINVAL;
2455 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2456 return -EINVAL;
2457 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2458 return -EINVAL;
2459 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2460 return -EINVAL;
2461
2462 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2463
2464 freq_range->start_freq_khz =
2465 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2466 freq_range->end_freq_khz =
2467 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2468 freq_range->max_bandwidth_khz =
2469 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2470
2471 power_rule->max_eirp =
2472 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2473
2474 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2475 power_rule->max_antenna_gain =
2476 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2477
2478 return 0;
2479}
2480
2481static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2482{
2483 int r;
2484 char *data = NULL;
2485
80778f18
LR		 2486 /*
2487 * You should only get this when cfg80211 hasn't yet initialized
2488 * completely when built-in to the kernel right between the time
2489 * window between nl80211_init() and regulatory_init(), if that is
2490 * even possible.
2491 */
2492 mutex_lock(&cfg80211_mutex);
2493 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2494 mutex_unlock(&cfg80211_mutex);
2495 return -EINPROGRESS;
80778f18 2496 }
fe33eb39 2497 mutex_unlock(&cfg80211_mutex);
80778f18 2498
fe33eb39
LR		 2499 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2500 return -EINVAL;
b2e1b302
LR		 2501
2502 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2503
fe33eb39
LR		 2504 r = regulatory_hint_user(data);
2505
b2e1b302
LR		 2506 return r;
2507}
2508
93da9cc1 2509static int nl80211_get_mesh_params(struct sk_buff *skb,
2510 struct genl_info *info)
2511{
4c476991 2512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
93da9cc1 2513 struct mesh_config cur_params;
2514 int err;
4c476991 2515 struct net_device *dev = info->user_ptr[1];
93da9cc1 2516 void *hdr;
2517 struct nlattr *pinfoattr;
2518 struct sk_buff *msg;
2519
4c476991
JB		 2520 if (!rdev->ops->get_mesh_params)
2521 return -EOPNOTSUPP;
f3f92586 2522
93da9cc1 2523 /* Get the mesh params */
79c97e97 2524 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
93da9cc1 2525 if (err)
4c476991 2526 return err;
93da9cc1 2527
2528 /* Draw up a netlink message to send back */
fd2120ca 2529 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 2530 if (!msg)
2531 return -ENOMEM;
93da9cc1 2532 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2533 NL80211_CMD_GET_MESH_PARAMS);
2534 if (!hdr)
2535 goto nla_put_failure;
2536 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2537 if (!pinfoattr)
2538 goto nla_put_failure;
2539 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2540 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2541 cur_params.dot11MeshRetryTimeout);
2542 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2543 cur_params.dot11MeshConfirmTimeout);
2544 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2545 cur_params.dot11MeshHoldingTimeout);
2546 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2547 cur_params.dot11MeshMaxPeerLinks);
2548 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2549 cur_params.dot11MeshMaxRetries);
2550 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2551 cur_params.dot11MeshTTL);
2552 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2553 cur_params.auto_open_plinks);
2554 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2555 cur_params.dot11MeshHWMPmaxPREQretries);
2556 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2557 cur_params.path_refresh_time);
2558 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2559 cur_params.min_discovery_timeout);
2560 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2561 cur_params.dot11MeshHWMPactivePathTimeout);
2562 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2563 cur_params.dot11MeshHWMPpreqMinInterval);
2564 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2565 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2566 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2567 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2568 nla_nest_end(msg, pinfoattr);
2569 genlmsg_end(msg, hdr);
4c476991 2570 return genlmsg_reply(msg, info);
93da9cc1 2571
3b85875a 2572 nla_put_failure:
93da9cc1 2573 genlmsg_cancel(msg, hdr);
d080e275 2574 nlmsg_free(msg);
4c476991 2575 return -ENOBUFS;
93da9cc1 2576}
2577
2578#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2579do {\
2580 if (table[attr_num]) {\
2581 cfg.param = nla_fn(table[attr_num]); \
2582 mask |= (1 << (attr_num - 1)); \
2583 } \
2584} while (0);\
2585
b54452b0 2586static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
93da9cc1 2587 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2588 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2589 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2590 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2591 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2592 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2593 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2594
2595 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2596 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2597 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2598 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2599 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2600 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2601};
2602
2603static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2604{
93da9cc1 2605 u32 mask;
4c476991
JB		 2606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2607 struct net_device *dev = info->user_ptr[1];
93da9cc1 2608 struct mesh_config cfg;
2609 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2610 struct nlattr *parent_attr;
2611
2612 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2613 if (!parent_attr)
2614 return -EINVAL;
2615 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2616 parent_attr, nl80211_meshconf_params_policy))
2617 return -EINVAL;
2618
4c476991
JB		 2619 if (!rdev->ops->set_mesh_params)
2620 return -EOPNOTSUPP;
f3f92586 2621
93da9cc1 2622 /* This makes sure that there aren't more than 32 mesh config
2623 * parameters (otherwise our bitfield scheme would not work.) */
2624 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2625
2626 /* Fill in the params struct */
2627 mask = 0;
2628 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2629 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2630 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2631 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2632 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2633 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2634 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2635 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2636 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2637 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2638 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2639 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2640 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2641 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2642 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2643 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2644 nla_get_u8);
2645 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2646 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2647 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2648 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2649 nla_get_u16);
2650 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2651 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2652 nla_get_u32);
2653 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2654 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2655 nla_get_u16);
2656 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2657 dot11MeshHWMPnetDiameterTraversalTime,
2658 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2659 nla_get_u16);
63c5723b
RP		 2660 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2661 dot11MeshHWMPRootMode, mask,
2662 NL80211_MESHCONF_HWMP_ROOTMODE,
2663 nla_get_u8);
93da9cc1 2664
2665 /* Apply changes */
4c476991 2666 return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2667}
2668
2669#undef FILL_IN_MESH_PARAM_IF_SET
2670
f130347c
LR		 2671static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2672{
2673 struct sk_buff *msg;
2674 void *hdr = NULL;
2675 struct nlattr *nl_reg_rules;
2676 unsigned int i;
2677 int err = -EINVAL;
2678
a1794390 2679 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2680
2681 if (!cfg80211_regdomain)
2682 goto out;
2683
fd2120ca 2684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2685 if (!msg) {
2686 err = -ENOBUFS;
2687 goto out;
2688 }
2689
2690 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2691 NL80211_CMD_GET_REG);
2692 if (!hdr)
2693 goto nla_put_failure;
2694
2695 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2696 cfg80211_regdomain->alpha2);
2697
2698 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2699 if (!nl_reg_rules)
2700 goto nla_put_failure;
2701
2702 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2703 struct nlattr *nl_reg_rule;
2704 const struct ieee80211_reg_rule *reg_rule;
2705 const struct ieee80211_freq_range *freq_range;
2706 const struct ieee80211_power_rule *power_rule;
2707
2708 reg_rule = &cfg80211_regdomain->reg_rules[i];
2709 freq_range = &reg_rule->freq_range;
2710 power_rule = &reg_rule->power_rule;
2711
2712 nl_reg_rule = nla_nest_start(msg, i);
2713 if (!nl_reg_rule)
2714 goto nla_put_failure;
2715
2716 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2717 reg_rule->flags);
2718 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2719 freq_range->start_freq_khz);
2720 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2721 freq_range->end_freq_khz);
2722 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2723 freq_range->max_bandwidth_khz);
2724 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2725 power_rule->max_antenna_gain);
2726 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2727 power_rule->max_eirp);
2728
2729 nla_nest_end(msg, nl_reg_rule);
2730 }
2731
2732 nla_nest_end(msg, nl_reg_rules);
2733
2734 genlmsg_end(msg, hdr);
134e6375 2735 err = genlmsg_reply(msg, info);
f130347c
LR		 2736 goto out;
2737
2738nla_put_failure:
2739 genlmsg_cancel(msg, hdr);
d080e275 2740 nlmsg_free(msg);
f130347c
LR		 2741 err = -EMSGSIZE;
2742out:
a1794390 2743 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2744 return err;
2745}
2746
b2e1b302
LR		 2747static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2748{
2749 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2750 struct nlattr *nl_reg_rule;
2751 char *alpha2 = NULL;
2752 int rem_reg_rules = 0, r = 0;
2753 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2754 struct ieee80211_regdomain *rd = NULL;
2755
2756 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2757 return -EINVAL;
2758
2759 if (!info->attrs[NL80211_ATTR_REG_RULES])
2760 return -EINVAL;
2761
2762 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2763
2764 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2765 rem_reg_rules) {
2766 num_rules++;
2767 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2768 return -EINVAL;
b2e1b302
LR		 2769 }
2770
61405e97
LR		 2771 mutex_lock(&cfg80211_mutex);
2772
d0e18f83
LR		 2773 if (!reg_is_valid_request(alpha2)) {
2774 r = -EINVAL;
2775 goto bad_reg;
2776 }
b2e1b302
LR		 2777
2778 size_of_regd = sizeof(struct ieee80211_regdomain) +
2779 (num_rules * sizeof(struct ieee80211_reg_rule));
2780
2781 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2782 if (!rd) {
2783 r = -ENOMEM;
2784 goto bad_reg;
2785 }
b2e1b302
LR		 2786
2787 rd->n_reg_rules = num_rules;
2788 rd->alpha2[0] = alpha2[0];
2789 rd->alpha2[1] = alpha2[1];
2790
2791 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2792 rem_reg_rules) {
2793 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2794 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2795 reg_rule_policy);
2796 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2797 if (r)
2798 goto bad_reg;
2799
2800 rule_idx++;
2801
d0e18f83
LR		 2802 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2803 r = -EINVAL;
b2e1b302 2804 goto bad_reg;
d0e18f83 2805 }
b2e1b302
LR		 2806 }
2807
2808 BUG_ON(rule_idx != num_rules);
2809
b2e1b302 2810 r = set_regdom(rd);
61405e97 2811
a1794390 2812 mutex_unlock(&cfg80211_mutex);
d0e18f83 2813
b2e1b302
LR		 2814 return r;
2815
d2372b31 2816 bad_reg:
61405e97 2817 mutex_unlock(&cfg80211_mutex);
b2e1b302 2818 kfree(rd);
d0e18f83 2819 return r;
b2e1b302
LR		 2820}
2821
83f5e2cf
JB		 2822static int validate_scan_freqs(struct nlattr *freqs)
2823{
2824 struct nlattr *attr1, *attr2;
2825 int n_channels = 0, tmp1, tmp2;
2826
2827 nla_for_each_nested(attr1, freqs, tmp1) {
2828 n_channels++;
2829 /*
2830 * Some hardware has a limited channel list for
2831 * scanning, and it is pretty much nonsensical
2832 * to scan for a channel twice, so disallow that
2833 * and don't require drivers to check that the
2834 * channel list they get isn't longer than what
2835 * they can scan, as long as they can scan all
2836 * the channels they registered at once.
2837 */
2838 nla_for_each_nested(attr2, freqs, tmp2)
2839 if (attr1 != attr2 &&
2840 nla_get_u32(attr1) == nla_get_u32(attr2))
2841 return 0;
2842 }
2843
2844 return n_channels;
2845}
2846
2a519311
JB		 2847static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2848{
4c476991
JB		 2849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2850 struct net_device *dev = info->user_ptr[1];
2a519311
JB		 2851 struct cfg80211_scan_request *request;
2852 struct cfg80211_ssid *ssid;
2853 struct ieee80211_channel *channel;
2854 struct nlattr *attr;
2855 struct wiphy *wiphy;
83f5e2cf 2856 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2857 enum ieee80211_band band;
70692ad2 2858 size_t ie_len;
2a519311 2859
f4a11bb0
JB		 2860 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2861 return -EINVAL;
2862
79c97e97 2863 wiphy = &rdev->wiphy;
2a519311 2864
4c476991
JB		 2865 if (!rdev->ops->scan)
2866 return -EOPNOTSUPP;
2a519311 2867
4c476991
JB		 2868 if (rdev->scan_req)
2869 return -EBUSY;
2a519311
JB		 2870
2871 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2872 n_channels = validate_scan_freqs(
2873 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4c476991
JB		 2874 if (!n_channels)
2875 return -EINVAL;
2a519311 2876 } else {
83f5e2cf
JB		 2877 n_channels = 0;
2878
2a519311
JB		 2879 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2880 if (wiphy->bands[band])
2881 n_channels += wiphy->bands[band]->n_channels;
2882 }
2883
2884 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2885 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2886 n_ssids++;
2887
4c476991
JB		 2888 if (n_ssids > wiphy->max_scan_ssids)
2889 return -EINVAL;
2a519311 2890
70692ad2
JM		 2891 if (info->attrs[NL80211_ATTR_IE])
2892 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2893 else
2894 ie_len = 0;
2895
4c476991
JB		 2896 if (ie_len > wiphy->max_scan_ie_len)
2897 return -EINVAL;
18a83659 2898
2a519311
JB		 2899 request = kzalloc(sizeof(*request)
2900 + sizeof(*ssid) * n_ssids
70692ad2
JM		 2901 + sizeof(channel) * n_channels
2902 + ie_len, GFP_KERNEL);
4c476991
JB		 2903 if (!request)
2904 return -ENOMEM;
2a519311 2905
2a519311 2906 if (n_ssids)
5ba63533 2907 request->ssids = (void *)&request->channels[n_channels];
2a519311 2908 request->n_ssids = n_ssids;
70692ad2
JM		 2909 if (ie_len) {
2910 if (request->ssids)
2911 request->ie = (void *)(request->ssids + n_ssids);
2912 else
2913 request->ie = (void *)(request->channels + n_channels);
2914 }
2a519311 2915
584991dc 2916 i = 0;
2a519311
JB		 2917 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2918 /* user specified, bail out if channel not found */
2a519311 2919 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 2920 struct ieee80211_channel *chan;
2921
2922 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2923
2924 if (!chan) {
2a519311
JB		 2925 err = -EINVAL;
2926 goto out_free;
2927 }
584991dc
JB		 2928
2929 /* ignore disabled channels */
2930 if (chan->flags & IEEE80211_CHAN_DISABLED)
2931 continue;
2932
2933 request->channels[i] = chan;
2a519311
JB		 2934 i++;
2935 }
2936 } else {
2937 /* all channels */
2a519311
JB		 2938 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2939 int j;
2940 if (!wiphy->bands[band])
2941 continue;
2942 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 2943 struct ieee80211_channel *chan;
2944
2945 chan = &wiphy->bands[band]->channels[j];
2946
2947 if (chan->flags & IEEE80211_CHAN_DISABLED)
2948 continue;
2949
2950 request->channels[i] = chan;
2a519311
JB		 2951 i++;
2952 }
2953 }
2954 }
2955
584991dc
JB		 2956 if (!i) {
2957 err = -EINVAL;
2958 goto out_free;
2959 }
2960
2961 request->n_channels = i;
2962
2a519311
JB		 2963 i = 0;
2964 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
2965 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
2966 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
2967 err = -EINVAL;
2968 goto out_free;
2969 }
2970 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2971 request->ssids[i].ssid_len = nla_len(attr);
2972 i++;
2973 }
2974 }
2975
70692ad2
JM		 2976 if (info->attrs[NL80211_ATTR_IE]) {
2977 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 2978 memcpy((void *)request->ie,
2979 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 2980 request->ie_len);
2981 }
2982
463d0183 2983 request->dev = dev;
79c97e97 2984 request->wiphy = &rdev->wiphy;
2a519311 2985
79c97e97
JB		 2986 rdev->scan_req = request;
2987 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 2988
463d0183 2989 if (!err) {
79c97e97 2990 nl80211_send_scan_start(rdev, dev);
463d0183 2991 dev_hold(dev);
4c476991 2992 } else {
2a519311 2993 out_free:
79c97e97 2994 rdev->scan_req = NULL;
2a519311
JB		 2995 kfree(request);
2996 }
3b85875a 2997
2a519311
JB		 2998 return err;
2999}
3000
3001static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3002 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3003 struct wireless_dev *wdev,
3004 struct cfg80211_internal_bss *intbss)
2a519311 3005{
48ab905d 3006 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3007 void *hdr;
3008 struct nlattr *bss;
48ab905d
JB		 3009 int i;
3010
3011 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3012
3013 hdr = nl80211hdr_put(msg, pid, seq, flags,
3014 NL80211_CMD_NEW_SCAN_RESULTS);
3015 if (!hdr)
3016 return -1;
3017
f5ea9120 3018 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3019 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3020
3021 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3022 if (!bss)
3023 goto nla_put_failure;
3024 if (!is_zero_ether_addr(res->bssid))
3025 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3026 if (res->information_elements && res->len_information_elements)
3027 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3028 res->len_information_elements,
3029 res->information_elements);
34a6eddb
JM		 3030 if (res->beacon_ies && res->len_beacon_ies &&
3031 res->beacon_ies != res->information_elements)
3032 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3033 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3034 if (res->tsf)
3035 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3036 if (res->beacon_interval)
3037 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3038 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3039 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3040 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3041 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3042
77965c97 3043 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3044 case CFG80211_SIGNAL_TYPE_MBM:
3045 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3046 break;
3047 case CFG80211_SIGNAL_TYPE_UNSPEC:
3048 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3049 break;
3050 default:
3051 break;
3052 }
3053
48ab905d 3054 switch (wdev->iftype) {
074ac8df 3055 case NL80211_IFTYPE_P2P_CLIENT:
48ab905d
JB		 3056 case NL80211_IFTYPE_STATION:
3057 if (intbss == wdev->current_bss)
3058 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3059 NL80211_BSS_STATUS_ASSOCIATED);
3060 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3061 if (intbss != wdev->auth_bsses[i])
3062 continue;
3063 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3064 NL80211_BSS_STATUS_AUTHENTICATED);
3065 break;
3066 }
3067 break;
3068 case NL80211_IFTYPE_ADHOC:
3069 if (intbss == wdev->current_bss)
3070 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3071 NL80211_BSS_STATUS_IBSS_JOINED);
3072 break;
3073 default:
3074 break;
3075 }
3076
2a519311
JB		 3077 nla_nest_end(msg, bss);
3078
3079 return genlmsg_end(msg, hdr);
3080
3081 nla_put_failure:
3082 genlmsg_cancel(msg, hdr);
3083 return -EMSGSIZE;
3084}
3085
3086static int nl80211_dump_scan(struct sk_buff *skb,
3087 struct netlink_callback *cb)
3088{
48ab905d
JB		 3089 struct cfg80211_registered_device *rdev;
3090 struct net_device *dev;
2a519311 3091 struct cfg80211_internal_bss *scan;
48ab905d 3092 struct wireless_dev *wdev;
2a519311
JB		 3093 int start = cb->args[1], idx = 0;
3094 int err;
3095
67748893
JB		 3096 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
3097 if (err)
3098 return err;
2a519311 3099
48ab905d 3100 wdev = dev->ieee80211_ptr;
2a519311 3101
48ab905d
JB		 3102 wdev_lock(wdev);
3103 spin_lock_bh(&rdev->bss_lock);
3104 cfg80211_bss_expire(rdev);
3105
3106 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3107 if (++idx <= start)
3108 continue;
3109 if (nl80211_send_bss(skb,
3110 NETLINK_CB(cb->skb).pid,
3111 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3112 rdev, wdev, scan) < 0) {
2a519311 3113 idx--;
67748893 3114 break;
2a519311
JB		 3115 }
3116 }
3117
48ab905d
JB		 3118 spin_unlock_bh(&rdev->bss_lock);
3119 wdev_unlock(wdev);
2a519311
JB		 3120
3121 cb->args[1] = idx;
67748893 3122 nl80211_finish_netdev_dump(rdev);
2a519311 3123
67748893 3124 return skb->len;
2a519311
JB		 3125}
3126
61fa713c
HS		 3127static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3128 int flags, struct net_device *dev,
3129 struct survey_info *survey)
3130{
3131 void *hdr;
3132 struct nlattr *infoattr;
3133
3134 /* Survey without a channel doesn't make sense */
3135 if (!survey->channel)
3136 return -EINVAL;
3137
3138 hdr = nl80211hdr_put(msg, pid, seq, flags,
3139 NL80211_CMD_NEW_SURVEY_RESULTS);
3140 if (!hdr)
3141 return -ENOMEM;
3142
3143 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3144
3145 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3146 if (!infoattr)
3147 goto nla_put_failure;
3148
3149 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3150 survey->channel->center_freq);
3151 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3152 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3153 survey->noise);
17e5a808
FF		 3154 if (survey->filled & SURVEY_INFO_IN_USE)
3155 NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE);
8610c29a
FF		 3156 if (survey->filled & SURVEY_INFO_CHANNEL_TIME)
3157 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
3158 survey->channel_time);
3159 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
3160 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
3161 survey->channel_time_busy);
3162 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
3163 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
3164 survey->channel_time_ext_busy);
3165 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_RX)
3166 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
3167 survey->channel_time_rx);
3168 if (survey->filled & SURVEY_INFO_CHANNEL_TIME_TX)
3169 NLA_PUT_U64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
3170 survey->channel_time_tx);
61fa713c
HS		 3171
3172 nla_nest_end(msg, infoattr);
3173
3174 return genlmsg_end(msg, hdr);
3175
3176 nla_put_failure:
3177 genlmsg_cancel(msg, hdr);
3178 return -EMSGSIZE;
3179}
3180
3181static int nl80211_dump_survey(struct sk_buff *skb,
3182 struct netlink_callback *cb)
3183{
3184 struct survey_info survey;
3185 struct cfg80211_registered_device *dev;
3186 struct net_device *netdev;
61fa713c
HS		 3187 int survey_idx = cb->args[1];
3188 int res;
3189
67748893
JB		 3190 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3191 if (res)
3192 return res;
61fa713c
HS		 3193
3194 if (!dev->ops->dump_survey) {
3195 res = -EOPNOTSUPP;
3196 goto out_err;
3197 }
3198
3199 while (1) {
3200 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3201 &survey);
3202 if (res == -ENOENT)
3203 break;
3204 if (res)
3205 goto out_err;
3206
3207 if (nl80211_send_survey(skb,
3208 NETLINK_CB(cb->skb).pid,
3209 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3210 netdev,
3211 &survey) < 0)
3212 goto out;
3213 survey_idx++;
3214 }
3215
3216 out:
3217 cb->args[1] = survey_idx;
3218 res = skb->len;
3219 out_err:
67748893 3220 nl80211_finish_netdev_dump(dev);
61fa713c
HS		 3221 return res;
3222}
3223
255e737e
JM		 3224static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3225{
b23aa676
SO		 3226 return auth_type <= NL80211_AUTHTYPE_MAX;
3227}
3228
3229static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3230{
3231 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3232 NL80211_WPA_VERSION_2));
3233}
3234
3235static bool nl80211_valid_akm_suite(u32 akm)
3236{
3237 return akm == WLAN_AKM_SUITE_8021X ||
3238 akm == WLAN_AKM_SUITE_PSK;
3239}
3240
3241static bool nl80211_valid_cipher_suite(u32 cipher)
3242{
3243 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3244 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3245 cipher == WLAN_CIPHER_SUITE_TKIP ||
3246 cipher == WLAN_CIPHER_SUITE_CCMP ||
3247 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3248}
3249
b23aa676 3250
636a5d36
JM		 3251static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3252{
4c476991
JB		 3253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3254 struct net_device *dev = info->user_ptr[1];
19957bb3
JB		 3255 struct ieee80211_channel *chan;
3256 const u8 *bssid, *ssid, *ie = NULL;
3257 int err, ssid_len, ie_len = 0;
3258 enum nl80211_auth_type auth_type;
fffd0934 3259 struct key_parse key;
d5cdfacb 3260 bool local_state_change;
636a5d36 3261
f4a11bb0
JB		 3262 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3263 return -EINVAL;
3264
3265 if (!info->attrs[NL80211_ATTR_MAC])
3266 return -EINVAL;
3267
1778092e
JM		 3268 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3269 return -EINVAL;
3270
19957bb3
JB		 3271 if (!info->attrs[NL80211_ATTR_SSID])
3272 return -EINVAL;
3273
3274 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3275 return -EINVAL;
3276
fffd0934
JB		 3277 err = nl80211_parse_key(info, &key);
3278 if (err)
3279 return err;
3280
3281 if (key.idx >= 0) {
e31b8213
JB		 3282 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
3283 return -EINVAL;
fffd0934
JB		 3284 if (!key.p.key || !key.p.key_len)
3285 return -EINVAL;
3286 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3287 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3288 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3289 key.p.key_len != WLAN_KEY_LEN_WEP104))
3290 return -EINVAL;
3291 if (key.idx > 4)
3292 return -EINVAL;
3293 } else {
3294 key.p.key_len = 0;
3295 key.p.key = NULL;
3296 }
3297
afea0b7a
JB		 3298 if (key.idx >= 0) {
3299 int i;
3300 bool ok = false;
3301 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
3302 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
3303 ok = true;
3304 break;
3305 }
3306 }
4c476991
JB		 3307 if (!ok)
3308 return -EINVAL;
afea0b7a
JB		 3309 }
3310
4c476991
JB		 3311 if (!rdev->ops->auth)
3312 return -EOPNOTSUPP;
636a5d36 3313
074ac8df 3314 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3315 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3316 return -EOPNOTSUPP;
eec60b03 3317
19957bb3 3318 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3319 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3 3320 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3321 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3322 return -EINVAL;
636a5d36 3323
19957bb3
JB		 3324 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3325 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3326
3327 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3328 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3329 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3330 }
3331
19957bb3 3332 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4c476991
JB		 3333 if (!nl80211_valid_auth_type(auth_type))
3334 return -EINVAL;
636a5d36 3335
d5cdfacb
JM		 3336 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3337
4c476991
JB		 3338 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
3339 ssid, ssid_len, ie, ie_len,
3340 key.p.key, key.p.key_len, key.idx,
3341 local_state_change);
636a5d36
JM		 3342}
3343
c0692b8f
JB		 3344static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
3345 struct genl_info *info,
3dc27d25
JB		 3346 struct cfg80211_crypto_settings *settings,
3347 int cipher_limit)
b23aa676 3348{
c0b2bbd8
JB		 3349 memset(settings, 0, sizeof(*settings));
3350
b23aa676
SO		 3351 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3352
c0692b8f
JB		 3353 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
3354 u16 proto;
3355 proto = nla_get_u16(
3356 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
3357 settings->control_port_ethertype = cpu_to_be16(proto);
3358 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
3359 proto != ETH_P_PAE)
3360 return -EINVAL;
3361 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
3362 settings->control_port_no_encrypt = true;
3363 } else
3364 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
3365
b23aa676
SO		 3366 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3367 void *data;
3368 int len, i;
3369
3370 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3371 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3372 settings->n_ciphers_pairwise = len / sizeof(u32);
3373
3374 if (len % sizeof(u32))
3375 return -EINVAL;
3376
3dc27d25 3377 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3378 return -EINVAL;
3379
3380 memcpy(settings->ciphers_pairwise, data, len);
3381
3382 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3383 if (!nl80211_valid_cipher_suite(
3384 settings->ciphers_pairwise[i]))
3385 return -EINVAL;
3386 }
3387
3388 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3389 settings->cipher_group =
3390 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3391 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3392 return -EINVAL;
3393 }
3394
3395 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3396 settings->wpa_versions =
3397 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3398 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3399 return -EINVAL;
3400 }
3401
3402 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3403 void *data;
3404 int len, i;
3405
3406 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3407 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3408 settings->n_akm_suites = len / sizeof(u32);
3409
3410 if (len % sizeof(u32))
3411 return -EINVAL;
3412
3413 memcpy(settings->akm_suites, data, len);
3414
3415 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3416 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3417 return -EINVAL;
3418 }
3419
3420 return 0;
3421}
3422
636a5d36
JM		 3423static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3424{
4c476991
JB		 3425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3426 struct net_device *dev = info->user_ptr[1];
19957bb3 3427 struct cfg80211_crypto_settings crypto;
f444de05 3428 struct ieee80211_channel *chan;
3e5d7649 3429 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3430 int err, ssid_len, ie_len = 0;
3431 bool use_mfp = false;
636a5d36 3432
f4a11bb0
JB		 3433 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3434 return -EINVAL;
3435
3436 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3437 !info->attrs[NL80211_ATTR_SSID] ||
3438 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3439 return -EINVAL;
3440
4c476991
JB		 3441 if (!rdev->ops->assoc)
3442 return -EOPNOTSUPP;
636a5d36 3443
074ac8df 3444 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3445 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3446 return -EOPNOTSUPP;
eec60b03 3447
19957bb3 3448 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3449
19957bb3
JB		 3450 chan = ieee80211_get_channel(&rdev->wiphy,
3451 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4c476991
JB		 3452 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
3453 return -EINVAL;
636a5d36 3454
19957bb3
JB		 3455 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3456 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3457
3458 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3459 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3460 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3461 }
3462
dc6382ce 3463 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3464 enum nl80211_mfp mfp =
dc6382ce 3465 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3466 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3467 use_mfp = true;
4c476991
JB		 3468 else if (mfp != NL80211_MFP_NO)
3469 return -EINVAL;
dc6382ce
JM		 3470 }
3471
3e5d7649
JB		 3472 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3473 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3474
c0692b8f 3475 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
b23aa676 3476 if (!err)
3e5d7649
JB		 3477 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3478 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3479 &crypto);
636a5d36 3480
636a5d36
JM		 3481 return err;
3482}
3483
3484static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3485{
4c476991
JB		 3486 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3487 struct net_device *dev = info->user_ptr[1];
19957bb3 3488 const u8 *ie = NULL, *bssid;
4c476991 3489 int ie_len = 0;
19957bb3 3490 u16 reason_code;
d5cdfacb 3491 bool local_state_change;
636a5d36 3492
f4a11bb0
JB		 3493 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3494 return -EINVAL;
3495
3496 if (!info->attrs[NL80211_ATTR_MAC])
3497 return -EINVAL;
3498
3499 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3500 return -EINVAL;
3501
4c476991
JB		 3502 if (!rdev->ops->deauth)
3503 return -EOPNOTSUPP;
636a5d36 3504
074ac8df 3505 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3506 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3507 return -EOPNOTSUPP;
eec60b03 3508
19957bb3 3509 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3510
19957bb3
JB		 3511 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3512 if (reason_code == 0) {
f4a11bb0 3513 /* Reason Code 0 is reserved */
4c476991 3514 return -EINVAL;
255e737e 3515 }
636a5d36
JM		 3516
3517 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3518 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3519 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3520 }
3521
d5cdfacb
JM		 3522 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3523
4c476991
JB		 3524 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
3525 local_state_change);
636a5d36
JM		 3526}
3527
3528static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3529{
4c476991
JB		 3530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3531 struct net_device *dev = info->user_ptr[1];
19957bb3 3532 const u8 *ie = NULL, *bssid;
4c476991 3533 int ie_len = 0;
19957bb3 3534 u16 reason_code;
d5cdfacb 3535 bool local_state_change;
636a5d36 3536
f4a11bb0
JB		 3537 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3538 return -EINVAL;
3539
3540 if (!info->attrs[NL80211_ATTR_MAC])
3541 return -EINVAL;
3542
3543 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3544 return -EINVAL;
3545
4c476991
JB		 3546 if (!rdev->ops->disassoc)
3547 return -EOPNOTSUPP;
636a5d36 3548
074ac8df 3549 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3550 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3551 return -EOPNOTSUPP;
eec60b03 3552
19957bb3 3553 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3554
19957bb3
JB		 3555 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3556 if (reason_code == 0) {
f4a11bb0 3557 /* Reason Code 0 is reserved */
4c476991 3558 return -EINVAL;
255e737e 3559 }
636a5d36
JM		 3560
3561 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3562 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3563 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3564 }
3565
d5cdfacb
JM		 3566 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
3567
4c476991
JB		 3568 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
3569 local_state_change);
636a5d36
JM		 3570}
3571
04a773ad
JB		 3572static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3573{
4c476991
JB		 3574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3575 struct net_device *dev = info->user_ptr[1];
04a773ad
JB		 3576 struct cfg80211_ibss_params ibss;
3577 struct wiphy *wiphy;
fffd0934 3578 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3579 int err;
3580
8e30bc55
JB		 3581 memset(&ibss, 0, sizeof(ibss));
3582
04a773ad
JB		 3583 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3584 return -EINVAL;
3585
3586 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3587 !info->attrs[NL80211_ATTR_SSID] ||
3588 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3589 return -EINVAL;
3590
8e30bc55
JB		 3591 ibss.beacon_interval = 100;
3592
3593 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3594 ibss.beacon_interval =
3595 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3596 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3597 return -EINVAL;
3598 }
3599
4c476991
JB		 3600 if (!rdev->ops->join_ibss)
3601 return -EOPNOTSUPP;
04a773ad 3602
4c476991
JB		 3603 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3604 return -EOPNOTSUPP;
04a773ad 3605
79c97e97 3606 wiphy = &rdev->wiphy;
04a773ad
JB		 3607
3608 if (info->attrs[NL80211_ATTR_MAC])
3609 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3610 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3611 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3612
3613 if (info->attrs[NL80211_ATTR_IE]) {
3614 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3615 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3616 }
3617
3618 ibss.channel = ieee80211_get_channel(wiphy,
3619 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3620 if (!ibss.channel ||
3621 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
4c476991
JB		 3622 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
3623 return -EINVAL;
04a773ad
JB		 3624
3625 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3626 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3627
fbd2c8dc
TP		 3628 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3629 u8 *rates =
3630 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3631 int n_rates =
3632 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3633 struct ieee80211_supported_band *sband =
3634 wiphy->bands[ibss.channel->band];
3635 int i, j;
3636
4c476991
JB		 3637 if (n_rates == 0)
3638 return -EINVAL;
fbd2c8dc
TP		 3639
3640 for (i = 0; i < n_rates; i++) {
3641 int rate = (rates[i] & 0x7f) * 5;
3642 bool found = false;
3643
3644 for (j = 0; j < sband->n_bitrates; j++) {
3645 if (sband->bitrates[j].bitrate == rate) {
3646 found = true;
3647 ibss.basic_rates |= BIT(j);
3648 break;
3649 }
3650 }
4c476991
JB		 3651 if (!found)
3652 return -EINVAL;
fbd2c8dc 3653 }
fbd2c8dc
TP		 3654 }
3655
4c476991
JB		 3656 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3657 connkeys = nl80211_parse_connkeys(rdev,
3658 info->attrs[NL80211_ATTR_KEYS]);
3659 if (IS_ERR(connkeys))
3660 return PTR_ERR(connkeys);
3661 }
04a773ad 3662
4c476991 3663 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
fffd0934
JB		 3664 if (err)
3665 kfree(connkeys);
04a773ad
JB		 3666 return err;
3667}
3668
3669static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3670{
4c476991
JB		 3671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3672 struct net_device *dev = info->user_ptr[1];
04a773ad 3673
4c476991
JB		 3674 if (!rdev->ops->leave_ibss)
3675 return -EOPNOTSUPP;
04a773ad 3676
4c476991
JB		 3677 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
3678 return -EOPNOTSUPP;
04a773ad 3679
4c476991 3680 return cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3681}
3682
aff89a9b
JB		 3683#ifdef CONFIG_NL80211_TESTMODE
3684static struct genl_multicast_group nl80211_testmode_mcgrp = {
3685 .name = "testmode",
3686};
3687
3688static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3689{
4c476991 3690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
aff89a9b
JB		 3691 int err;
3692
3693 if (!info->attrs[NL80211_ATTR_TESTDATA])
3694 return -EINVAL;
3695
aff89a9b
JB		 3696 err = -EOPNOTSUPP;
3697 if (rdev->ops->testmode_cmd) {
3698 rdev->testmode_info = info;
3699 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3700 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3701 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3702 rdev->testmode_info = NULL;
3703 }
3704
aff89a9b
JB		 3705 return err;
3706}
3707
3708static struct sk_buff *
3709__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3710 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3711{
3712 struct sk_buff *skb;
3713 void *hdr;
3714 struct nlattr *data;
3715
3716 skb = nlmsg_new(approxlen + 100, gfp);
3717 if (!skb)
3718 return NULL;
3719
3720 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3721 if (!hdr) {
3722 kfree_skb(skb);
3723 return NULL;
3724 }
3725
3726 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3727 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3728
3729 ((void **)skb->cb)[0] = rdev;
3730 ((void **)skb->cb)[1] = hdr;
3731 ((void **)skb->cb)[2] = data;
3732
3733 return skb;
3734
3735 nla_put_failure:
3736 kfree_skb(skb);
3737 return NULL;
3738}
3739
3740struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3741 int approxlen)
3742{
3743 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3744
3745 if (WARN_ON(!rdev->testmode_info))
3746 return NULL;
3747
3748 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3749 rdev->testmode_info->snd_pid,
3750 rdev->testmode_info->snd_seq,
3751 GFP_KERNEL);
3752}
3753EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3754
3755int cfg80211_testmode_reply(struct sk_buff *skb)
3756{
3757 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3758 void *hdr = ((void **)skb->cb)[1];
3759 struct nlattr *data = ((void **)skb->cb)[2];
3760
3761 if (WARN_ON(!rdev->testmode_info)) {
3762 kfree_skb(skb);
3763 return -EINVAL;
3764 }
3765
3766 nla_nest_end(skb, data);
3767 genlmsg_end(skb, hdr);
3768 return genlmsg_reply(skb, rdev->testmode_info);
3769}
3770EXPORT_SYMBOL(cfg80211_testmode_reply);
3771
3772struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
3773 int approxlen, gfp_t gfp)
3774{
3775 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3776
3777 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
3778}
3779EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
3780
3781void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
3782{
3783 void *hdr = ((void **)skb->cb)[1];
3784 struct nlattr *data = ((void **)skb->cb)[2];
3785
3786 nla_nest_end(skb, data);
3787 genlmsg_end(skb, hdr);
3788 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
3789}
3790EXPORT_SYMBOL(cfg80211_testmode_event);
3791#endif
3792
b23aa676
SO		 3793static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
3794{
4c476991
JB		 3795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3796 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3797 struct cfg80211_connect_params connect;
3798 struct wiphy *wiphy;
fffd0934 3799 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 3800 int err;
3801
3802 memset(&connect, 0, sizeof(connect));
3803
3804 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3805 return -EINVAL;
3806
3807 if (!info->attrs[NL80211_ATTR_SSID] ||
3808 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3809 return -EINVAL;
3810
3811 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3812 connect.auth_type =
3813 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3814 if (!nl80211_valid_auth_type(connect.auth_type))
3815 return -EINVAL;
3816 } else
3817 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3818
3819 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
3820
c0692b8f 3821 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
3dc27d25 3822 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 3823 if (err)
3824 return err;
b23aa676 3825
074ac8df 3826 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3827 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3828 return -EOPNOTSUPP;
b23aa676 3829
79c97e97 3830 wiphy = &rdev->wiphy;
b23aa676 3831
b23aa676
SO		 3832 if (info->attrs[NL80211_ATTR_MAC])
3833 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3834 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3835 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3836
3837 if (info->attrs[NL80211_ATTR_IE]) {
3838 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3839 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3840 }
3841
3842 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3843 connect.channel =
3844 ieee80211_get_channel(wiphy,
3845 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3846 if (!connect.channel ||
4c476991
JB		 3847 connect.channel->flags & IEEE80211_CHAN_DISABLED)
3848 return -EINVAL;
b23aa676
SO		 3849 }
3850
fffd0934
JB		 3851 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3852 connkeys = nl80211_parse_connkeys(rdev,
3853 info->attrs[NL80211_ATTR_KEYS]);
4c476991
JB		 3854 if (IS_ERR(connkeys))
3855 return PTR_ERR(connkeys);
fffd0934
JB		 3856 }
3857
3858 err = cfg80211_connect(rdev, dev, &connect, connkeys);
fffd0934
JB		 3859 if (err)
3860 kfree(connkeys);
b23aa676
SO		 3861 return err;
3862}
3863
3864static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
3865{
4c476991
JB		 3866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3867 struct net_device *dev = info->user_ptr[1];
b23aa676
SO		 3868 u16 reason;
3869
3870 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3871 reason = WLAN_REASON_DEAUTH_LEAVING;
3872 else
3873 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3874
3875 if (reason == 0)
3876 return -EINVAL;
3877
074ac8df 3878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3879 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3880 return -EOPNOTSUPP;
b23aa676 3881
4c476991 3882 return cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 3883}
3884
463d0183
JB		 3885static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
3886{
4c476991 3887 struct cfg80211_registered_device *rdev = info->user_ptr[0];
463d0183
JB		 3888 struct net *net;
3889 int err;
3890 u32 pid;
3891
3892 if (!info->attrs[NL80211_ATTR_PID])
3893 return -EINVAL;
3894
3895 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
3896
463d0183 3897 net = get_net_ns_by_pid(pid);
4c476991
JB		 3898 if (IS_ERR(net))
3899 return PTR_ERR(net);
463d0183
JB		 3900
3901 err = 0;
3902
3903 /* check if anything to do */
4c476991
JB		 3904 if (!net_eq(wiphy_net(&rdev->wiphy), net))
3905 err = cfg80211_switch_netns(rdev, net);
463d0183 3906
463d0183 3907 put_net(net);
463d0183
JB		 3908 return err;
3909}
3910
67fbb16b
SO		 3911static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
3912{
4c476991 3913 struct cfg80211_registered_device *rdev = info->user_ptr[0];
67fbb16b
SO		 3914 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
3915 struct cfg80211_pmksa *pmksa) = NULL;
4c476991 3916 struct net_device *dev = info->user_ptr[1];
67fbb16b
SO		 3917 struct cfg80211_pmksa pmksa;
3918
3919 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
3920
3921 if (!info->attrs[NL80211_ATTR_MAC])
3922 return -EINVAL;
3923
3924 if (!info->attrs[NL80211_ATTR_PMKID])
3925 return -EINVAL;
3926
67fbb16b
SO		 3927 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
3928 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3929
074ac8df 3930 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3931 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3932 return -EOPNOTSUPP;
67fbb16b
SO		 3933
3934 switch (info->genlhdr->cmd) {
3935 case NL80211_CMD_SET_PMKSA:
3936 rdev_ops = rdev->ops->set_pmksa;
3937 break;
3938 case NL80211_CMD_DEL_PMKSA:
3939 rdev_ops = rdev->ops->del_pmksa;
3940 break;
3941 default:
3942 WARN_ON(1);
3943 break;
3944 }
3945
4c476991
JB		 3946 if (!rdev_ops)
3947 return -EOPNOTSUPP;
67fbb16b 3948
4c476991 3949 return rdev_ops(&rdev->wiphy, dev, &pmksa);
67fbb16b
SO		 3950}
3951
3952static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
3953{
4c476991
JB		 3954 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3955 struct net_device *dev = info->user_ptr[1];
67fbb16b 3956
074ac8df 3957 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 3958 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
3959 return -EOPNOTSUPP;
67fbb16b 3960
4c476991
JB		 3961 if (!rdev->ops->flush_pmksa)
3962 return -EOPNOTSUPP;
67fbb16b 3963
4c476991 3964 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
67fbb16b
SO		 3965}
3966
9588bbd5
JM		 3967static int nl80211_remain_on_channel(struct sk_buff *skb,
3968 struct genl_info *info)
3969{
4c476991
JB		 3970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3971 struct net_device *dev = info->user_ptr[1];
9588bbd5
JM		 3972 struct ieee80211_channel *chan;
3973 struct sk_buff *msg;
3974 void *hdr;
3975 u64 cookie;
3976 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
3977 u32 freq, duration;
3978 int err;
3979
3980 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3981 !info->attrs[NL80211_ATTR_DURATION])
3982 return -EINVAL;
3983
3984 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
3985
3986 /*
3987 * We should be on that channel for at least one jiffie,
3988 * and more than 5 seconds seems excessive.
3989 */
3990 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
3991 return -EINVAL;
3992
4c476991
JB		 3993 if (!rdev->ops->remain_on_channel)
3994 return -EOPNOTSUPP;
9588bbd5 3995
9588bbd5
JM		 3996 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
3997 channel_type = nla_get_u32(
3998 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
3999 if (channel_type != NL80211_CHAN_NO_HT &&
4000 channel_type != NL80211_CHAN_HT20 &&
4001 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4002 channel_type != NL80211_CHAN_HT40MINUS)
4003 return -EINVAL;
9588bbd5
JM		 4004 }
4005
4006 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4007 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4008 if (chan == NULL)
4009 return -EINVAL;
9588bbd5
JM		 4010
4011 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4012 if (!msg)
4013 return -ENOMEM;
9588bbd5
JM		 4014
4015 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4016 NL80211_CMD_REMAIN_ON_CHANNEL);
4017
4018 if (IS_ERR(hdr)) {
4019 err = PTR_ERR(hdr);
4020 goto free_msg;
4021 }
4022
4023 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4024 channel_type, duration, &cookie);
4025
4026 if (err)
4027 goto free_msg;
4028
4029 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4030
4031 genlmsg_end(msg, hdr);
4c476991
JB		 4032
4033 return genlmsg_reply(msg, info);
9588bbd5
JM		 4034
4035 nla_put_failure:
4036 err = -ENOBUFS;
4037 free_msg:
4038 nlmsg_free(msg);
9588bbd5
JM		 4039 return err;
4040}
4041
4042static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4043 struct genl_info *info)
4044{
4c476991
JB		 4045 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4046 struct net_device *dev = info->user_ptr[1];
9588bbd5 4047 u64 cookie;
9588bbd5
JM		 4048
4049 if (!info->attrs[NL80211_ATTR_COOKIE])
4050 return -EINVAL;
4051
4c476991
JB		 4052 if (!rdev->ops->cancel_remain_on_channel)
4053 return -EOPNOTSUPP;
9588bbd5 4054
9588bbd5
JM		 4055 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4056
4c476991 4057 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
9588bbd5
JM		 4058}
4059
13ae75b1
JM		 4060static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4061 u8 *rates, u8 rates_len)
4062{
4063 u8 i;
4064 u32 mask = 0;
4065
4066 for (i = 0; i < rates_len; i++) {
4067 int rate = (rates[i] & 0x7f) * 5;
4068 int ridx;
4069 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4070 struct ieee80211_rate *srate =
4071 &sband->bitrates[ridx];
4072 if (rate == srate->bitrate) {
4073 mask |= 1 << ridx;
4074 break;
4075 }
4076 }
4077 if (ridx == sband->n_bitrates)
4078 return 0; /* rate not found */
4079 }
4080
4081 return mask;
4082}
4083
b54452b0 4084static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
13ae75b1
JM		 4085 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4086 .len = NL80211_MAX_SUPP_RATES },
4087};
4088
4089static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4090 struct genl_info *info)
4091{
4092 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4c476991 4093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
13ae75b1 4094 struct cfg80211_bitrate_mask mask;
4c476991
JB		 4095 int rem, i;
4096 struct net_device *dev = info->user_ptr[1];
13ae75b1
JM		 4097 struct nlattr *tx_rates;
4098 struct ieee80211_supported_band *sband;
4099
4100 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4101 return -EINVAL;
4102
4c476991
JB		 4103 if (!rdev->ops->set_bitrate_mask)
4104 return -EOPNOTSUPP;
13ae75b1
JM		 4105
4106 memset(&mask, 0, sizeof(mask));
4107 /* Default to all rates enabled */
4108 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4109 sband = rdev->wiphy.bands[i];
4110 mask.control[i].legacy =
4111 sband ? (1 << sband->n_bitrates) - 1 : 0;
4112 }
4113
4114 /*
4115 * The nested attribute uses enum nl80211_band as the index. This maps
4116 * directly to the enum ieee80211_band values used in cfg80211.
4117 */
4118 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4119 {
4120 enum ieee80211_band band = nla_type(tx_rates);
4c476991
JB		 4121 if (band < 0 || band >= IEEE80211_NUM_BANDS)
4122 return -EINVAL;
13ae75b1 4123 sband = rdev->wiphy.bands[band];
4c476991
JB		 4124 if (sband == NULL)
4125 return -EINVAL;
13ae75b1
JM		 4126 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4127 nla_len(tx_rates), nl80211_txattr_policy);
4128 if (tb[NL80211_TXRATE_LEGACY]) {
4129 mask.control[band].legacy = rateset_to_mask(
4130 sband,
4131 nla_data(tb[NL80211_TXRATE_LEGACY]),
4132 nla_len(tb[NL80211_TXRATE_LEGACY]));
4c476991
JB		 4133 if (mask.control[band].legacy == 0)
4134 return -EINVAL;
13ae75b1
JM		 4135 }
4136 }
4137
4c476991 4138 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
13ae75b1
JM		 4139}
4140
2e161f78 4141static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4142{
4c476991
JB		 4143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4144 struct net_device *dev = info->user_ptr[1];
2e161f78 4145 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
026331c4
JM		 4146
4147 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4148 return -EINVAL;
4149
2e161f78
JB		 4150 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
4151 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
026331c4 4152
9d38d85d 4153 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4154 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4157 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4158 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4159 return -EOPNOTSUPP;
026331c4
JM		 4160
4161 /* not much point in registering if we can't reply */
4c476991
JB		 4162 if (!rdev->ops->mgmt_tx)
4163 return -EOPNOTSUPP;
026331c4 4164
4c476991 4165 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
2e161f78 4166 frame_type,
026331c4
JM		 4167 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4168 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
026331c4
JM		 4169}
4170
2e161f78 4171static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
026331c4 4172{
4c476991
JB		 4173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4174 struct net_device *dev = info->user_ptr[1];
026331c4
JM		 4175 struct ieee80211_channel *chan;
4176 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
252aa631 4177 bool channel_type_valid = false;
026331c4
JM		 4178 u32 freq;
4179 int err;
4180 void *hdr;
4181 u64 cookie;
4182 struct sk_buff *msg;
4183
4184 if (!info->attrs[NL80211_ATTR_FRAME] ||
4185 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4186 return -EINVAL;
4187
4c476991
JB		 4188 if (!rdev->ops->mgmt_tx)
4189 return -EOPNOTSUPP;
026331c4 4190
9d38d85d 4191 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
074ac8df 4192 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
663fcafd
JB		 4193 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
4194 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4195 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4c476991
JB		 4196 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4197 return -EOPNOTSUPP;
026331c4 4198
026331c4
JM		 4199 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4200 channel_type = nla_get_u32(
4201 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4202 if (channel_type != NL80211_CHAN_NO_HT &&
4203 channel_type != NL80211_CHAN_HT20 &&
4204 channel_type != NL80211_CHAN_HT40PLUS &&
4c476991
JB		 4205 channel_type != NL80211_CHAN_HT40MINUS)
4206 return -EINVAL;
252aa631 4207 channel_type_valid = true;
026331c4
JM		 4208 }
4209
4210 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4211 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4c476991
JB		 4212 if (chan == NULL)
4213 return -EINVAL;
026331c4
JM		 4214
4215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4216 if (!msg)
4217 return -ENOMEM;
026331c4
JM		 4218
4219 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2e161f78 4220 NL80211_CMD_FRAME);
026331c4
JM		 4221
4222 if (IS_ERR(hdr)) {
4223 err = PTR_ERR(hdr);
4224 goto free_msg;
4225 }
2e161f78
JB		 4226 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type,
4227 channel_type_valid,
4228 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4229 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4230 &cookie);
026331c4
JM		 4231 if (err)
4232 goto free_msg;
4233
4234 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4235
4236 genlmsg_end(msg, hdr);
4c476991 4237 return genlmsg_reply(msg, info);
026331c4
JM		 4238
4239 nla_put_failure:
4240 err = -ENOBUFS;
4241 free_msg:
4242 nlmsg_free(msg);
026331c4
JM		 4243 return err;
4244}
4245
ffb9eb3d
KV		 4246static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
4247{
4c476991 4248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d 4249 struct wireless_dev *wdev;
4c476991 4250 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4251 u8 ps_state;
4252 bool state;
4253 int err;
4254
4c476991
JB		 4255 if (!info->attrs[NL80211_ATTR_PS_STATE])
4256 return -EINVAL;
ffb9eb3d
KV		 4257
4258 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
4259
4c476991
JB		 4260 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
4261 return -EINVAL;
ffb9eb3d
KV		 4262
4263 wdev = dev->ieee80211_ptr;
4264
4c476991
JB		 4265 if (!rdev->ops->set_power_mgmt)
4266 return -EOPNOTSUPP;
ffb9eb3d
KV		 4267
4268 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
4269
4270 if (state == wdev->ps)
4c476991 4271 return 0;
ffb9eb3d 4272
4c476991
JB		 4273 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
4274 wdev->ps_timeout);
4275 if (!err)
4276 wdev->ps = state;
ffb9eb3d
KV		 4277 return err;
4278}
4279
4280static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
4281{
4c476991 4282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
ffb9eb3d
KV		 4283 enum nl80211_ps_state ps_state;
4284 struct wireless_dev *wdev;
4c476991 4285 struct net_device *dev = info->user_ptr[1];
ffb9eb3d
KV		 4286 struct sk_buff *msg;
4287 void *hdr;
4288 int err;
4289
ffb9eb3d
KV		 4290 wdev = dev->ieee80211_ptr;
4291
4c476991
JB		 4292 if (!rdev->ops->set_power_mgmt)
4293 return -EOPNOTSUPP;
ffb9eb3d
KV		 4294
4295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4c476991
JB		 4296 if (!msg)
4297 return -ENOMEM;
ffb9eb3d
KV		 4298
4299 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4300 NL80211_CMD_GET_POWER_SAVE);
4301 if (!hdr) {
4c476991 4302 err = -ENOBUFS;
ffb9eb3d
KV		 4303 goto free_msg;
4304 }
4305
4306 if (wdev->ps)
4307 ps_state = NL80211_PS_ENABLED;
4308 else
4309 ps_state = NL80211_PS_DISABLED;
4310
4311 NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
4312
4313 genlmsg_end(msg, hdr);
4c476991 4314 return genlmsg_reply(msg, info);
ffb9eb3d 4315
4c476991 4316 nla_put_failure:
ffb9eb3d 4317 err = -ENOBUFS;
4c476991 4318 free_msg:
ffb9eb3d 4319 nlmsg_free(msg);
ffb9eb3d
KV		 4320 return err;
4321}
4322
d6dc1a38
JO		 4323static struct nla_policy
4324nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
4325 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
4326 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
4327 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
4328};
4329
4330static int nl80211_set_cqm_rssi(struct genl_info *info,
4331 s32 threshold, u32 hysteresis)
4332{
4c476991 4333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
d6dc1a38 4334 struct wireless_dev *wdev;
4c476991 4335 struct net_device *dev = info->user_ptr[1];
d6dc1a38
JO		 4336
4337 if (threshold > 0)
4338 return -EINVAL;
4339
d6dc1a38
JO		 4340 wdev = dev->ieee80211_ptr;
4341
4c476991
JB		 4342 if (!rdev->ops->set_cqm_rssi_config)
4343 return -EOPNOTSUPP;
d6dc1a38 4344
074ac8df 4345 if (wdev->iftype != NL80211_IFTYPE_STATION &&
4c476991
JB		 4346 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
4347 return -EOPNOTSUPP;
d6dc1a38 4348
4c476991
JB		 4349 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
4350 threshold, hysteresis);
d6dc1a38
JO		 4351}
4352
4353static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
4354{
4355 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
4356 struct nlattr *cqm;
4357 int err;
4358
4359 cqm = info->attrs[NL80211_ATTR_CQM];
4360 if (!cqm) {
4361 err = -EINVAL;
4362 goto out;
4363 }
4364
4365 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
4366 nl80211_attr_cqm_policy);
4367 if (err)
4368 goto out;
4369
4370 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
4371 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
4372 s32 threshold;
4373 u32 hysteresis;
4374 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
4375 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
4376 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
4377 } else
4378 err = -EINVAL;
4379
4380out:
4381 return err;
4382}
4383
4c476991
JB		 4384#define NL80211_FLAG_NEED_WIPHY 0x01
4385#define NL80211_FLAG_NEED_NETDEV 0x02
4386#define NL80211_FLAG_NEED_RTNL 0x04
41265714
JB		 4387#define NL80211_FLAG_CHECK_NETDEV_UP 0x08
4388#define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
4389 NL80211_FLAG_CHECK_NETDEV_UP)
4c476991
JB		 4390
4391static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
4392 struct genl_info *info)
4393{
4394 struct cfg80211_registered_device *rdev;
4395 struct net_device *dev;
4396 int err;
4397 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
4398
4399 if (rtnl)
4400 rtnl_lock();
4401
4402 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
4403 rdev = cfg80211_get_dev_from_info(info);
4404 if (IS_ERR(rdev)) {
4405 if (rtnl)
4406 rtnl_unlock();
4407 return PTR_ERR(rdev);
4408 }
4409 info->user_ptr[0] = rdev;
4410 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
4411 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4412 if (err) {
4413 if (rtnl)
4414 rtnl_unlock();
4415 return err;
4416 }
41265714
JB		 4417 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
4418 !netif_running(dev)) {
d537f5fd
JB		 4419 cfg80211_unlock_rdev(rdev);
4420 dev_put(dev);
41265714
JB		 4421 if (rtnl)
4422 rtnl_unlock();
4423 return -ENETDOWN;
4424 }
4c476991
JB		 4425 info->user_ptr[0] = rdev;
4426 info->user_ptr[1] = dev;
4427 }
4428
4429 return 0;
4430}
4431
4432static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
4433 struct genl_info *info)
4434{
4435 if (info->user_ptr[0])
4436 cfg80211_unlock_rdev(info->user_ptr[0]);
4437 if (info->user_ptr[1])
4438 dev_put(info->user_ptr[1]);
4439 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
4440 rtnl_unlock();
4441}
4442
55682965
JB		 4443static struct genl_ops nl80211_ops[] = {
4444 {
4445 .cmd = NL80211_CMD_GET_WIPHY,
4446 .doit = nl80211_get_wiphy,
4447 .dumpit = nl80211_dump_wiphy,
4448 .policy = nl80211_policy,
4449 /* can be retrieved by unprivileged users */
4c476991 4450 .internal_flags = NL80211_FLAG_NEED_WIPHY,
55682965
JB		 4451 },
4452 {
4453 .cmd = NL80211_CMD_SET_WIPHY,
4454 .doit = nl80211_set_wiphy,
4455 .policy = nl80211_policy,
4456 .flags = GENL_ADMIN_PERM,
4c476991 4457 .internal_flags = NL80211_FLAG_NEED_RTNL,
55682965
JB		 4458 },
4459 {
4460 .cmd = NL80211_CMD_GET_INTERFACE,
4461 .doit = nl80211_get_interface,
4462 .dumpit = nl80211_dump_interface,
4463 .policy = nl80211_policy,
4464 /* can be retrieved by unprivileged users */
4c476991 4465 .internal_flags = NL80211_FLAG_NEED_NETDEV,
55682965
JB		 4466 },
4467 {
4468 .cmd = NL80211_CMD_SET_INTERFACE,
4469 .doit = nl80211_set_interface,
4470 .policy = nl80211_policy,
4471 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4472 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4473 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4474 },
4475 {
4476 .cmd = NL80211_CMD_NEW_INTERFACE,
4477 .doit = nl80211_new_interface,
4478 .policy = nl80211_policy,
4479 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4480 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4481 NL80211_FLAG_NEED_RTNL,
55682965
JB		 4482 },
4483 {
4484 .cmd = NL80211_CMD_DEL_INTERFACE,
4485 .doit = nl80211_del_interface,
4486 .policy = nl80211_policy,
41ade00f 4487 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4488 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4489 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4490 },
4491 {
4492 .cmd = NL80211_CMD_GET_KEY,
4493 .doit = nl80211_get_key,
4494 .policy = nl80211_policy,
4495 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4497 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4498 },
4499 {
4500 .cmd = NL80211_CMD_SET_KEY,
4501 .doit = nl80211_set_key,
4502 .policy = nl80211_policy,
4503 .flags = GENL_ADMIN_PERM,
41265714 4504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4505 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4506 },
4507 {
4508 .cmd = NL80211_CMD_NEW_KEY,
4509 .doit = nl80211_new_key,
4510 .policy = nl80211_policy,
4511 .flags = GENL_ADMIN_PERM,
41265714 4512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4513 NL80211_FLAG_NEED_RTNL,
41ade00f
JB		 4514 },
4515 {
4516 .cmd = NL80211_CMD_DEL_KEY,
4517 .doit = nl80211_del_key,
4518 .policy = nl80211_policy,
55682965 4519 .flags = GENL_ADMIN_PERM,
41265714 4520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4521 NL80211_FLAG_NEED_RTNL,
55682965 4522 },
ed1b6cc7
JB		 4523 {
4524 .cmd = NL80211_CMD_SET_BEACON,
4525 .policy = nl80211_policy,
4526 .flags = GENL_ADMIN_PERM,
4527 .doit = nl80211_addset_beacon,
4c476991
JB		 4528 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4529 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4530 },
4531 {
4532 .cmd = NL80211_CMD_NEW_BEACON,
4533 .policy = nl80211_policy,
4534 .flags = GENL_ADMIN_PERM,
4535 .doit = nl80211_addset_beacon,
4c476991
JB		 4536 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4537 NL80211_FLAG_NEED_RTNL,
ed1b6cc7
JB		 4538 },
4539 {
4540 .cmd = NL80211_CMD_DEL_BEACON,
4541 .policy = nl80211_policy,
4542 .flags = GENL_ADMIN_PERM,
4543 .doit = nl80211_del_beacon,
4c476991
JB		 4544 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4545 NL80211_FLAG_NEED_RTNL,
ed1b6cc7 4546 },
5727ef1b
JB		 4547 {
4548 .cmd = NL80211_CMD_GET_STATION,
4549 .doit = nl80211_get_station,
2ec600d6 4550 .dumpit = nl80211_dump_station,
5727ef1b 4551 .policy = nl80211_policy,
4c476991
JB		 4552 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4553 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4554 },
4555 {
4556 .cmd = NL80211_CMD_SET_STATION,
4557 .doit = nl80211_set_station,
4558 .policy = nl80211_policy,
4559 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4560 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4561 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4562 },
4563 {
4564 .cmd = NL80211_CMD_NEW_STATION,
4565 .doit = nl80211_new_station,
4566 .policy = nl80211_policy,
4567 .flags = GENL_ADMIN_PERM,
41265714 4568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4569 NL80211_FLAG_NEED_RTNL,
5727ef1b
JB		 4570 },
4571 {
4572 .cmd = NL80211_CMD_DEL_STATION,
4573 .doit = nl80211_del_station,
4574 .policy = nl80211_policy,
2ec600d6 4575 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4577 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4578 },
4579 {
4580 .cmd = NL80211_CMD_GET_MPATH,
4581 .doit = nl80211_get_mpath,
4582 .dumpit = nl80211_dump_mpath,
4583 .policy = nl80211_policy,
4584 .flags = GENL_ADMIN_PERM,
41265714 4585 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4586 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4587 },
4588 {
4589 .cmd = NL80211_CMD_SET_MPATH,
4590 .doit = nl80211_set_mpath,
4591 .policy = nl80211_policy,
4592 .flags = GENL_ADMIN_PERM,
41265714 4593 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4594 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4595 },
4596 {
4597 .cmd = NL80211_CMD_NEW_MPATH,
4598 .doit = nl80211_new_mpath,
4599 .policy = nl80211_policy,
4600 .flags = GENL_ADMIN_PERM,
41265714 4601 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4602 NL80211_FLAG_NEED_RTNL,
2ec600d6
LCC		 4603 },
4604 {
4605 .cmd = NL80211_CMD_DEL_MPATH,
4606 .doit = nl80211_del_mpath,
4607 .policy = nl80211_policy,
9f1ba906 4608 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4609 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4610 NL80211_FLAG_NEED_RTNL,
9f1ba906
JM		 4611 },
4612 {
4613 .cmd = NL80211_CMD_SET_BSS,
4614 .doit = nl80211_set_bss,
4615 .policy = nl80211_policy,
b2e1b302 4616 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4617 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4618 NL80211_FLAG_NEED_RTNL,
b2e1b302 4619 },
f130347c
LR		 4620 {
4621 .cmd = NL80211_CMD_GET_REG,
4622 .doit = nl80211_get_reg,
4623 .policy = nl80211_policy,
4624 /* can be retrieved by unprivileged users */
4625 },
b2e1b302
LR		 4626 {
4627 .cmd = NL80211_CMD_SET_REG,
4628 .doit = nl80211_set_reg,
4629 .policy = nl80211_policy,
4630 .flags = GENL_ADMIN_PERM,
4631 },
4632 {
4633 .cmd = NL80211_CMD_REQ_SET_REG,
4634 .doit = nl80211_req_set_reg,
4635 .policy = nl80211_policy,
93da9cc1 4636 .flags = GENL_ADMIN_PERM,
4637 },
4638 {
4639 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4640 .doit = nl80211_get_mesh_params,
4641 .policy = nl80211_policy,
4642 /* can be retrieved by unprivileged users */
4c476991
JB		 4643 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4644 NL80211_FLAG_NEED_RTNL,
93da9cc1 4645 },
4646 {
4647 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4648 .doit = nl80211_set_mesh_params,
4649 .policy = nl80211_policy,
9aed3cc1 4650 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4651 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4652 NL80211_FLAG_NEED_RTNL,
9aed3cc1 4653 },
2a519311
JB		 4654 {
4655 .cmd = NL80211_CMD_TRIGGER_SCAN,
4656 .doit = nl80211_trigger_scan,
4657 .policy = nl80211_policy,
4658 .flags = GENL_ADMIN_PERM,
41265714 4659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4660 NL80211_FLAG_NEED_RTNL,
2a519311
JB		 4661 },
4662 {
4663 .cmd = NL80211_CMD_GET_SCAN,
4664 .policy = nl80211_policy,
4665 .dumpit = nl80211_dump_scan,
4666 },
636a5d36
JM		 4667 {
4668 .cmd = NL80211_CMD_AUTHENTICATE,
4669 .doit = nl80211_authenticate,
4670 .policy = nl80211_policy,
4671 .flags = GENL_ADMIN_PERM,
41265714 4672 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4673 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4674 },
4675 {
4676 .cmd = NL80211_CMD_ASSOCIATE,
4677 .doit = nl80211_associate,
4678 .policy = nl80211_policy,
4679 .flags = GENL_ADMIN_PERM,
41265714 4680 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4681 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4682 },
4683 {
4684 .cmd = NL80211_CMD_DEAUTHENTICATE,
4685 .doit = nl80211_deauthenticate,
4686 .policy = nl80211_policy,
4687 .flags = GENL_ADMIN_PERM,
41265714 4688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4689 NL80211_FLAG_NEED_RTNL,
636a5d36
JM		 4690 },
4691 {
4692 .cmd = NL80211_CMD_DISASSOCIATE,
4693 .doit = nl80211_disassociate,
4694 .policy = nl80211_policy,
4695 .flags = GENL_ADMIN_PERM,
41265714 4696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4697 NL80211_FLAG_NEED_RTNL,
636a5d36 4698 },
04a773ad
JB		 4699 {
4700 .cmd = NL80211_CMD_JOIN_IBSS,
4701 .doit = nl80211_join_ibss,
4702 .policy = nl80211_policy,
4703 .flags = GENL_ADMIN_PERM,
41265714 4704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4705 NL80211_FLAG_NEED_RTNL,
04a773ad
JB		 4706 },
4707 {
4708 .cmd = NL80211_CMD_LEAVE_IBSS,
4709 .doit = nl80211_leave_ibss,
4710 .policy = nl80211_policy,
4711 .flags = GENL_ADMIN_PERM,
41265714 4712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4713 NL80211_FLAG_NEED_RTNL,
04a773ad 4714 },
aff89a9b
JB		 4715#ifdef CONFIG_NL80211_TESTMODE
4716 {
4717 .cmd = NL80211_CMD_TESTMODE,
4718 .doit = nl80211_testmode_do,
4719 .policy = nl80211_policy,
4720 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4721 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4722 NL80211_FLAG_NEED_RTNL,
aff89a9b
JB		 4723 },
4724#endif
b23aa676
SO		 4725 {
4726 .cmd = NL80211_CMD_CONNECT,
4727 .doit = nl80211_connect,
4728 .policy = nl80211_policy,
4729 .flags = GENL_ADMIN_PERM,
41265714 4730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4731 NL80211_FLAG_NEED_RTNL,
b23aa676
SO		 4732 },
4733 {
4734 .cmd = NL80211_CMD_DISCONNECT,
4735 .doit = nl80211_disconnect,
4736 .policy = nl80211_policy,
4737 .flags = GENL_ADMIN_PERM,
41265714 4738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4739 NL80211_FLAG_NEED_RTNL,
b23aa676 4740 },
463d0183
JB		 4741 {
4742 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4743 .doit = nl80211_wiphy_netns,
4744 .policy = nl80211_policy,
4745 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4746 .internal_flags = NL80211_FLAG_NEED_WIPHY |
4747 NL80211_FLAG_NEED_RTNL,
463d0183 4748 },
61fa713c
HS		 4749 {
4750 .cmd = NL80211_CMD_GET_SURVEY,
4751 .policy = nl80211_policy,
4752 .dumpit = nl80211_dump_survey,
4753 },
67fbb16b
SO		 4754 {
4755 .cmd = NL80211_CMD_SET_PMKSA,
4756 .doit = nl80211_setdel_pmksa,
4757 .policy = nl80211_policy,
4758 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4759 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4760 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4761 },
4762 {
4763 .cmd = NL80211_CMD_DEL_PMKSA,
4764 .doit = nl80211_setdel_pmksa,
4765 .policy = nl80211_policy,
4766 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4767 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4768 NL80211_FLAG_NEED_RTNL,
67fbb16b
SO		 4769 },
4770 {
4771 .cmd = NL80211_CMD_FLUSH_PMKSA,
4772 .doit = nl80211_flush_pmksa,
4773 .policy = nl80211_policy,
4774 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4776 NL80211_FLAG_NEED_RTNL,
67fbb16b 4777 },
9588bbd5
JM		 4778 {
4779 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4780 .doit = nl80211_remain_on_channel,
4781 .policy = nl80211_policy,
4782 .flags = GENL_ADMIN_PERM,
41265714 4783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4784 NL80211_FLAG_NEED_RTNL,
9588bbd5
JM		 4785 },
4786 {
4787 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4788 .doit = nl80211_cancel_remain_on_channel,
4789 .policy = nl80211_policy,
4790 .flags = GENL_ADMIN_PERM,
41265714 4791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4792 NL80211_FLAG_NEED_RTNL,
9588bbd5 4793 },
13ae75b1
JM		 4794 {
4795 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4796 .doit = nl80211_set_tx_bitrate_mask,
4797 .policy = nl80211_policy,
4798 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4800 NL80211_FLAG_NEED_RTNL,
13ae75b1 4801 },
026331c4 4802 {
2e161f78
JB		 4803 .cmd = NL80211_CMD_REGISTER_FRAME,
4804 .doit = nl80211_register_mgmt,
026331c4
JM		 4805 .policy = nl80211_policy,
4806 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4807 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4808 NL80211_FLAG_NEED_RTNL,
026331c4
JM		 4809 },
4810 {
2e161f78
JB		 4811 .cmd = NL80211_CMD_FRAME,
4812 .doit = nl80211_tx_mgmt,
026331c4
JM		 4813 .policy = nl80211_policy,
4814 .flags = GENL_ADMIN_PERM,
41265714 4815 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
4c476991 4816 NL80211_FLAG_NEED_RTNL,
026331c4 4817 },
ffb9eb3d
KV		 4818 {
4819 .cmd = NL80211_CMD_SET_POWER_SAVE,
4820 .doit = nl80211_set_power_save,
4821 .policy = nl80211_policy,
4822 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4823 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4824 NL80211_FLAG_NEED_RTNL,
ffb9eb3d
KV		 4825 },
4826 {
4827 .cmd = NL80211_CMD_GET_POWER_SAVE,
4828 .doit = nl80211_get_power_save,
4829 .policy = nl80211_policy,
4830 /* can be retrieved by unprivileged users */
4c476991
JB		 4831 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4832 NL80211_FLAG_NEED_RTNL,
ffb9eb3d 4833 },
d6dc1a38
JO		 4834 {
4835 .cmd = NL80211_CMD_SET_CQM,
4836 .doit = nl80211_set_cqm,
4837 .policy = nl80211_policy,
4838 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4839 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4840 NL80211_FLAG_NEED_RTNL,
d6dc1a38 4841 },
f444de05
JB		 4842 {
4843 .cmd = NL80211_CMD_SET_CHANNEL,
4844 .doit = nl80211_set_channel,
4845 .policy = nl80211_policy,
4846 .flags = GENL_ADMIN_PERM,
4c476991
JB		 4847 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4848 NL80211_FLAG_NEED_RTNL,
f444de05 4849 },
e8347eba
BJ		 4850 {
4851 .cmd = NL80211_CMD_SET_WDS_PEER,
4852 .doit = nl80211_set_wds_peer,
4853 .policy = nl80211_policy,
4854 .flags = GENL_ADMIN_PERM,
43b19952
JB		 4855 .internal_flags = NL80211_FLAG_NEED_NETDEV |
4856 NL80211_FLAG_NEED_RTNL,
e8347eba 4857 },
55682965 4858};
9588bbd5 4859
6039f6d2
JM		 4860static struct genl_multicast_group nl80211_mlme_mcgrp = {
4861 .name = "mlme",
4862};
55682965
JB		 4863
4864/* multicast groups */
4865static struct genl_multicast_group nl80211_config_mcgrp = {
4866 .name = "config",
4867};
2a519311
JB		 4868static struct genl_multicast_group nl80211_scan_mcgrp = {
4869 .name = "scan",
4870};
73d54c9e
LR		 4871static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4872 .name = "regulatory",
4873};
55682965
JB		 4874
4875/* notification functions */
4876
4877void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4878{
4879 struct sk_buff *msg;
4880
fd2120ca 4881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4882 if (!msg)
4883 return;
4884
4885 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4886 nlmsg_free(msg);
4887 return;
4888 }
4889
463d0183
JB		 4890 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4891 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 4892}
4893
362a415d
JB		 4894static int nl80211_add_scan_req(struct sk_buff *msg,
4895 struct cfg80211_registered_device *rdev)
4896{
4897 struct cfg80211_scan_request *req = rdev->scan_req;
4898 struct nlattr *nest;
4899 int i;
4900
667503dd
JB		 4901 ASSERT_RDEV_LOCK(rdev);
4902
362a415d
JB		 4903 if (WARN_ON(!req))
4904 return 0;
4905
4906 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
4907 if (!nest)
4908 goto nla_put_failure;
4909 for (i = 0; i < req->n_ssids; i++)
4910 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
4911 nla_nest_end(msg, nest);
4912
4913 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
4914 if (!nest)
4915 goto nla_put_failure;
4916 for (i = 0; i < req->n_channels; i++)
4917 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
4918 nla_nest_end(msg, nest);
4919
4920 if (req->ie)
4921 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
4922
4923 return 0;
4924 nla_put_failure:
4925 return -ENOBUFS;
4926}
4927
a538e2d5
JB		 4928static int nl80211_send_scan_msg(struct sk_buff *msg,
4929 struct cfg80211_registered_device *rdev,
4930 struct net_device *netdev,
4931 u32 pid, u32 seq, int flags,
4932 u32 cmd)
2a519311
JB		 4933{
4934 void *hdr;
4935
4936 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
4937 if (!hdr)
4938 return -1;
4939
b5850a7a 4940 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 4941 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
4942
362a415d
JB		 4943 /* ignore errors and send incomplete event anyway */
4944 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 4945
4946 return genlmsg_end(msg, hdr);
4947
4948 nla_put_failure:
4949 genlmsg_cancel(msg, hdr);
4950 return -EMSGSIZE;
4951}
4952
a538e2d5
JB		 4953void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
4954 struct net_device *netdev)
4955{
4956 struct sk_buff *msg;
4957
4958 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
4959 if (!msg)
4960 return;
4961
4962 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4963 NL80211_CMD_TRIGGER_SCAN) < 0) {
4964 nlmsg_free(msg);
4965 return;
4966 }
4967
463d0183
JB		 4968 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4969 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 4970}
4971
2a519311
JB		 4972void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
4973 struct net_device *netdev)
4974{
4975 struct sk_buff *msg;
4976
fd2120ca 4977 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 4978 if (!msg)
4979 return;
4980
a538e2d5
JB		 4981 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
4982 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 4983 nlmsg_free(msg);
4984 return;
4985 }
4986
463d0183
JB		 4987 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4988 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 4989}
4990
4991void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
4992 struct net_device *netdev)
4993{
4994 struct sk_buff *msg;
4995
fd2120ca 4996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 4997 if (!msg)
4998 return;
4999
a538e2d5
JB		 5000 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5001 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5002 nlmsg_free(msg);
5003 return;
5004 }
5005
463d0183
JB		 5006 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5007 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5008}
5009
73d54c9e
LR		 5010/*
5011 * This can happen on global regulatory changes or device specific settings
5012 * based on custom world regulatory domains.
5013 */
5014void nl80211_send_reg_change_event(struct regulatory_request *request)
5015{
5016 struct sk_buff *msg;
5017 void *hdr;
5018
fd2120ca 5019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5020 if (!msg)
5021 return;
5022
5023 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5024 if (!hdr) {
5025 nlmsg_free(msg);
5026 return;
5027 }
5028
5029 /* Userspace can always count this one always being set */
5030 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5031
5032 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5033 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5034 NL80211_REGDOM_TYPE_WORLD);
5035 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5036 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5037 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5038 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5039 request->intersect)
5040 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5041 NL80211_REGDOM_TYPE_INTERSECTION);
5042 else {
5043 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5044 NL80211_REGDOM_TYPE_COUNTRY);
5045 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5046 }
5047
5048 if (wiphy_idx_valid(request->wiphy_idx))
5049 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5050
5051 if (genlmsg_end(msg, hdr) < 0) {
5052 nlmsg_free(msg);
5053 return;
5054 }
5055
bc43b28c 5056 rcu_read_lock();
463d0183 5057 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5058 GFP_ATOMIC);
5059 rcu_read_unlock();
73d54c9e
LR		 5060
5061 return;
5062
5063nla_put_failure:
5064 genlmsg_cancel(msg, hdr);
5065 nlmsg_free(msg);
5066}
5067
6039f6d2
JM		 5068static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5069 struct net_device *netdev,
5070 const u8 *buf, size_t len,
e6d6e342 5071 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5072{
5073 struct sk_buff *msg;
5074 void *hdr;
5075
e6d6e342 5076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5077 if (!msg)
5078 return;
5079
5080 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5081 if (!hdr) {
5082 nlmsg_free(msg);
5083 return;
5084 }
5085
5086 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5087 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5088 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5089
5090 if (genlmsg_end(msg, hdr) < 0) {
5091 nlmsg_free(msg);
5092 return;
5093 }
5094
463d0183
JB		 5095 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5096 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5097 return;
5098
5099 nla_put_failure:
5100 genlmsg_cancel(msg, hdr);
5101 nlmsg_free(msg);
5102}
5103
5104void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5105 struct net_device *netdev, const u8 *buf,
5106 size_t len, gfp_t gfp)
6039f6d2
JM		 5107{
5108 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5109 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5110}
5111
5112void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5113 struct net_device *netdev, const u8 *buf,
e6d6e342 5114 size_t len, gfp_t gfp)
6039f6d2 5115{
e6d6e342
JB		 5116 nl80211_send_mlme_event(rdev, netdev, buf, len,
5117 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5118}
5119
53b46b84 5120void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5121 struct net_device *netdev, const u8 *buf,
5122 size_t len, gfp_t gfp)
6039f6d2
JM		 5123{
5124 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5125 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5126}
5127
53b46b84
JM		 5128void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5129 struct net_device *netdev, const u8 *buf,
e6d6e342 5130 size_t len, gfp_t gfp)
6039f6d2
JM		 5131{
5132 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5133 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5134}
5135
1b06bb40
LR		 5136static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5137 struct net_device *netdev, int cmd,
e6d6e342 5138 const u8 *addr, gfp_t gfp)
1965c853
JM		 5139{
5140 struct sk_buff *msg;
5141 void *hdr;
5142
e6d6e342 5143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5144 if (!msg)
5145 return;
5146
5147 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5148 if (!hdr) {
5149 nlmsg_free(msg);
5150 return;
5151 }
5152
5153 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5154 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5155 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5156 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5157
5158 if (genlmsg_end(msg, hdr) < 0) {
5159 nlmsg_free(msg);
5160 return;
5161 }
5162
463d0183
JB		 5163 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5164 nl80211_mlme_mcgrp.id, gfp);
1965c853
JM		 5165 return;
5166
5167 nla_put_failure:
5168 genlmsg_cancel(msg, hdr);
5169 nlmsg_free(msg);
5170}
5171
5172void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5173 struct net_device *netdev, const u8 *addr,
5174 gfp_t gfp)
1965c853
JM		 5175{
5176 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5177 addr, gfp);
1965c853
JM		 5178}
5179
5180void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5181 struct net_device *netdev, const u8 *addr,
5182 gfp_t gfp)
1965c853 5183{
e6d6e342
JB		 5184 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5185 addr, gfp);
1965c853
JM		 5186}
5187
b23aa676
SO		 5188void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5189 struct net_device *netdev, const u8 *bssid,
5190 const u8 *req_ie, size_t req_ie_len,
5191 const u8 *resp_ie, size_t resp_ie_len,
5192 u16 status, gfp_t gfp)
5193{
5194 struct sk_buff *msg;
5195 void *hdr;
5196
5197 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5198 if (!msg)
5199 return;
5200
5201 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5202 if (!hdr) {
5203 nlmsg_free(msg);
5204 return;
5205 }
5206
5207 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5208 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5209 if (bssid)
5210 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5211 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5212 if (req_ie)
5213 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5214 if (resp_ie)
5215 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5216
5217 if (genlmsg_end(msg, hdr) < 0) {
5218 nlmsg_free(msg);
5219 return;
5220 }
5221
463d0183
JB		 5222 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5223 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5224 return;
5225
5226 nla_put_failure:
5227 genlmsg_cancel(msg, hdr);
5228 nlmsg_free(msg);
5229
5230}
5231
5232void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5233 struct net_device *netdev, const u8 *bssid,
5234 const u8 *req_ie, size_t req_ie_len,
5235 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5236{
5237 struct sk_buff *msg;
5238 void *hdr;
5239
5240 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5241 if (!msg)
5242 return;
5243
5244 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5245 if (!hdr) {
5246 nlmsg_free(msg);
5247 return;
5248 }
5249
5250 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5251 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5252 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5253 if (req_ie)
5254 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5255 if (resp_ie)
5256 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5257
5258 if (genlmsg_end(msg, hdr) < 0) {
5259 nlmsg_free(msg);
5260 return;
5261 }
5262
463d0183
JB		 5263 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5264 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5265 return;
5266
5267 nla_put_failure:
5268 genlmsg_cancel(msg, hdr);
5269 nlmsg_free(msg);
5270
5271}
5272
5273void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5274 struct net_device *netdev, u16 reason,
667503dd 5275 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5276{
5277 struct sk_buff *msg;
5278 void *hdr;
5279
667503dd 5280 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5281 if (!msg)
5282 return;
5283
5284 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5285 if (!hdr) {
5286 nlmsg_free(msg);
5287 return;
5288 }
5289
5290 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5291 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5292 if (from_ap && reason)
5293 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5294 if (from_ap)
5295 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5296 if (ie)
5297 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5298
5299 if (genlmsg_end(msg, hdr) < 0) {
5300 nlmsg_free(msg);
5301 return;
5302 }
5303
463d0183
JB		 5304 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5305 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5306 return;
5307
5308 nla_put_failure:
5309 genlmsg_cancel(msg, hdr);
5310 nlmsg_free(msg);
5311
5312}
5313
04a773ad
JB		 5314void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5315 struct net_device *netdev, const u8 *bssid,
5316 gfp_t gfp)
5317{
5318 struct sk_buff *msg;
5319 void *hdr;
5320
fd2120ca 5321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5322 if (!msg)
5323 return;
5324
5325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5326 if (!hdr) {
5327 nlmsg_free(msg);
5328 return;
5329 }
5330
5331 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5332 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5333 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5334
5335 if (genlmsg_end(msg, hdr) < 0) {
5336 nlmsg_free(msg);
5337 return;
5338 }
5339
463d0183
JB		 5340 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5341 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5342 return;
5343
5344 nla_put_failure:
5345 genlmsg_cancel(msg, hdr);
5346 nlmsg_free(msg);
5347}
5348
a3b8b056
JM		 5349void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5350 struct net_device *netdev, const u8 *addr,
5351 enum nl80211_key_type key_type, int key_id,
e6d6e342 5352 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5353{
5354 struct sk_buff *msg;
5355 void *hdr;
5356
e6d6e342 5357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5358 if (!msg)
5359 return;
5360
5361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
5362 if (!hdr) {
5363 nlmsg_free(msg);
5364 return;
5365 }
5366
5367 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5368 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5369 if (addr)
5370 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5371 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5372 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5373 if (tsc)
5374 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5375
5376 if (genlmsg_end(msg, hdr) < 0) {
5377 nlmsg_free(msg);
5378 return;
5379 }
5380
463d0183
JB		 5381 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5382 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5383 return;
5384
5385 nla_put_failure:
5386 genlmsg_cancel(msg, hdr);
5387 nlmsg_free(msg);
5388}
5389
6bad8766
LR		 5390void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5391 struct ieee80211_channel *channel_before,
5392 struct ieee80211_channel *channel_after)
5393{
5394 struct sk_buff *msg;
5395 void *hdr;
5396 struct nlattr *nl_freq;
5397
fd2120ca 5398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5399 if (!msg)
5400 return;
5401
5402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5403 if (!hdr) {
5404 nlmsg_free(msg);
5405 return;
5406 }
5407
5408 /*
5409 * Since we are applying the beacon hint to a wiphy we know its
5410 * wiphy_idx is valid
5411 */
5412 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5413
5414 /* Before */
5415 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5416 if (!nl_freq)
5417 goto nla_put_failure;
5418 if (nl80211_msg_put_channel(msg, channel_before))
5419 goto nla_put_failure;
5420 nla_nest_end(msg, nl_freq);
5421
5422 /* After */
5423 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5424 if (!nl_freq)
5425 goto nla_put_failure;
5426 if (nl80211_msg_put_channel(msg, channel_after))
5427 goto nla_put_failure;
5428 nla_nest_end(msg, nl_freq);
5429
5430 if (genlmsg_end(msg, hdr) < 0) {
5431 nlmsg_free(msg);
5432 return;
5433 }
5434
463d0183
JB		 5435 rcu_read_lock();
5436 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5437 GFP_ATOMIC);
5438 rcu_read_unlock();
6bad8766
LR		 5439
5440 return;
5441
5442nla_put_failure:
5443 genlmsg_cancel(msg, hdr);
5444 nlmsg_free(msg);
5445}
5446
9588bbd5
JM		 5447static void nl80211_send_remain_on_chan_event(
5448 int cmd, struct cfg80211_registered_device *rdev,
5449 struct net_device *netdev, u64 cookie,
5450 struct ieee80211_channel *chan,
5451 enum nl80211_channel_type channel_type,
5452 unsigned int duration, gfp_t gfp)
5453{
5454 struct sk_buff *msg;
5455 void *hdr;
5456
5457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5458 if (!msg)
5459 return;
5460
5461 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5462 if (!hdr) {
5463 nlmsg_free(msg);
5464 return;
5465 }
5466
5467 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5468 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5469 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5470 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5471 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5472
5473 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5474 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5475
5476 if (genlmsg_end(msg, hdr) < 0) {
5477 nlmsg_free(msg);
5478 return;
5479 }
5480
5481 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5482 nl80211_mlme_mcgrp.id, gfp);
5483 return;
5484
5485 nla_put_failure:
5486 genlmsg_cancel(msg, hdr);
5487 nlmsg_free(msg);
5488}
5489
5490void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5491 struct net_device *netdev, u64 cookie,
5492 struct ieee80211_channel *chan,
5493 enum nl80211_channel_type channel_type,
5494 unsigned int duration, gfp_t gfp)
5495{
5496 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5497 rdev, netdev, cookie, chan,
5498 channel_type, duration, gfp);
5499}
5500
5501void nl80211_send_remain_on_channel_cancel(
5502 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5503 u64 cookie, struct ieee80211_channel *chan,
5504 enum nl80211_channel_type channel_type, gfp_t gfp)
5505{
5506 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5507 rdev, netdev, cookie, chan,
5508 channel_type, 0, gfp);
5509}
5510
98b62183
JB		 5511void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5512 struct net_device *dev, const u8 *mac_addr,
5513 struct station_info *sinfo, gfp_t gfp)
5514{
5515 struct sk_buff *msg;
5516
5517 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5518 if (!msg)
5519 return;
5520
5521 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5522 nlmsg_free(msg);
5523 return;
5524 }
5525
5526 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5527 nl80211_mlme_mcgrp.id, gfp);
5528}
5529
2e161f78
JB		 5530int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
5531 struct net_device *netdev, u32 nlpid,
5532 int freq, const u8 *buf, size_t len, gfp_t gfp)
026331c4
JM		 5533{
5534 struct sk_buff *msg;
5535 void *hdr;
5536 int err;
5537
5538 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5539 if (!msg)
5540 return -ENOMEM;
5541
2e161f78 5542 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
026331c4
JM		 5543 if (!hdr) {
5544 nlmsg_free(msg);
5545 return -ENOMEM;
5546 }
5547
5548 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5549 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5550 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5551 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5552
5553 err = genlmsg_end(msg, hdr);
5554 if (err < 0) {
5555 nlmsg_free(msg);
5556 return err;
5557 }
5558
5559 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5560 if (err < 0)
5561 return err;
5562 return 0;
5563
5564 nla_put_failure:
5565 genlmsg_cancel(msg, hdr);
5566 nlmsg_free(msg);
5567 return -ENOBUFS;
5568}
5569
2e161f78
JB		 5570void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
5571 struct net_device *netdev, u64 cookie,
5572 const u8 *buf, size_t len, bool ack,
5573 gfp_t gfp)
026331c4
JM		 5574{
5575 struct sk_buff *msg;
5576 void *hdr;
5577
5578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5579 if (!msg)
5580 return;
5581
2e161f78 5582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
026331c4
JM		 5583 if (!hdr) {
5584 nlmsg_free(msg);
5585 return;
5586 }
5587
5588 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5589 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5590 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5591 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5592 if (ack)
5593 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5594
5595 if (genlmsg_end(msg, hdr) < 0) {
5596 nlmsg_free(msg);
5597 return;
5598 }
5599
5600 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5601 return;
5602
5603 nla_put_failure:
5604 genlmsg_cancel(msg, hdr);
5605 nlmsg_free(msg);
5606}
5607
d6dc1a38
JO		 5608void
5609nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
5610 struct net_device *netdev,
5611 enum nl80211_cqm_rssi_threshold_event rssi_event,
5612 gfp_t gfp)
5613{
5614 struct sk_buff *msg;
5615 struct nlattr *pinfoattr;
5616 void *hdr;
5617
5618 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5619 if (!msg)
5620 return;
5621
5622 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
5623 if (!hdr) {
5624 nlmsg_free(msg);
5625 return;
5626 }
5627
5628 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5629 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5630
5631 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
5632 if (!pinfoattr)
5633 goto nla_put_failure;
5634
5635 NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
5636 rssi_event);
5637
5638 nla_nest_end(msg, pinfoattr);
5639
5640 if (genlmsg_end(msg, hdr) < 0) {
5641 nlmsg_free(msg);
5642 return;
5643 }
5644
5645 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5646 nl80211_mlme_mcgrp.id, gfp);
5647 return;
5648
5649 nla_put_failure:
5650 genlmsg_cancel(msg, hdr);
5651 nlmsg_free(msg);
5652}
5653
026331c4
JM		 5654static int nl80211_netlink_notify(struct notifier_block * nb,
5655 unsigned long state,
5656 void *_notify)
5657{
5658 struct netlink_notify *notify = _notify;
5659 struct cfg80211_registered_device *rdev;
5660 struct wireless_dev *wdev;
5661
5662 if (state != NETLINK_URELEASE)
5663 return NOTIFY_DONE;
5664
5665 rcu_read_lock();
5666
5667 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5668 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
2e161f78 5669 cfg80211_mlme_unregister_socket(wdev, notify->pid);
026331c4
JM		 5670
5671 rcu_read_unlock();
5672
5673 return NOTIFY_DONE;
5674}
5675
5676static struct notifier_block nl80211_netlink_notifier = {
5677 .notifier_call = nl80211_netlink_notify,
5678};
5679
55682965
JB		 5680/* initialisation/exit functions */
5681
5682int nl80211_init(void)
5683{
0d63cbb5 5684 int err;
55682965 5685
0d63cbb5
MM		 5686 err = genl_register_family_with_ops(&nl80211_fam,
5687 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5688 if (err)
5689 return err;
5690
55682965
JB		 5691 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5692 if (err)
5693 goto err_out;
5694
2a519311
JB		 5695 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5696 if (err)
5697 goto err_out;
5698
73d54c9e
LR		 5699 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5700 if (err)
5701 goto err_out;
5702
6039f6d2
JM		 5703 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5704 if (err)
5705 goto err_out;
5706
aff89a9b
JB		 5707#ifdef CONFIG_NL80211_TESTMODE
5708 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5709 if (err)
5710 goto err_out;
5711#endif
5712
026331c4
JM		 5713 err = netlink_register_notifier(&nl80211_netlink_notifier);
5714 if (err)
5715 goto err_out;
5716
55682965
JB		 5717 return 0;
5718 err_out:
5719 genl_unregister_family(&nl80211_fam);
5720 return err;
5721}
5722
5723void nl80211_exit(void)
5724{
026331c4 5725 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 5726 genl_unregister_family(&nl80211_fam);
5727}
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