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drivers/net/wireless/p54/txrx.c Fix off by one error
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / wireless / nl80211.c
CommitLineData
55682965
JB		 1/*
2 * This is the new netlink-based wireless configuration interface.
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
55682965
JB		 5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
55682965
JB		 10#include <linux/list.h>
11#include <linux/if_ether.h>
12#include <linux/ieee80211.h>
13#include <linux/nl80211.h>
14#include <linux/rtnetlink.h>
15#include <linux/netlink.h>
2a519311 16#include <linux/etherdevice.h>
463d0183 17#include <net/net_namespace.h>
55682965
JB		 18#include <net/genetlink.h>
19#include <net/cfg80211.h>
463d0183 20#include <net/sock.h>
55682965
JB		 21#include "core.h"
22#include "nl80211.h"
b2e1b302 23#include "reg.h"
55682965
JB		 24
25/* the netlink family */
26static struct genl_family nl80211_fam = {
27 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
28 .name = "nl80211", /* have users key off the name instead */
29 .hdrsize = 0, /* no private header */
30 .version = 1, /* no particular meaning now */
31 .maxattr = NL80211_ATTR_MAX,
463d0183 32 .netnsok = true,
55682965
JB		 33};
34
79c97e97 35/* internal helper: get rdev and dev */
463d0183 36static int get_rdev_dev_by_info_ifindex(struct genl_info *info,
79c97e97 37 struct cfg80211_registered_device **rdev,
55682965
JB		 38 struct net_device **dev)
39{
463d0183 40 struct nlattr **attrs = info->attrs;
55682965
JB		 41 int ifindex;
42
bba95fef 43 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 44 return -EINVAL;
45
bba95fef 46 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
463d0183 47 *dev = dev_get_by_index(genl_info_net(info), ifindex);
55682965
JB		 48 if (!*dev)
49 return -ENODEV;
50
463d0183 51 *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex);
79c97e97 52 if (IS_ERR(*rdev)) {
55682965 53 dev_put(*dev);
79c97e97 54 return PTR_ERR(*rdev);
55682965
JB		 55 }
56
57 return 0;
58}
59
60/* policy for the attributes */
61static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
62 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
079e24ed 64 .len = 20-1 },
31888487 65 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 66 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 67 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 68 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
69 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
70 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
71 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
81077e82 72 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
55682965
JB		 73
74 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
75 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
76 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 77
78 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
3e5d7649 79 [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN },
41ade00f 80
b9454e83 81 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
41ade00f
JB		 82 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
83 .len = WLAN_MAX_KEY_LEN },
84 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
85 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
86 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 87 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
ed1b6cc7
JB		 88
89 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
90 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
91 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
92 .len = IEEE80211_MAX_DATA_LEN },
93 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
94 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 95 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
96 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
97 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
98 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
99 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 100 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 101 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 102 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 103 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
104 .len = IEEE80211_MAX_MESH_ID_LEN },
105 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 106
b2e1b302
LR		 107 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
108 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
109
9f1ba906
JM		 110 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
111 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
112 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 113 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
114 .len = NL80211_MAX_SUPP_RATES },
36aedc90 115
93da9cc1 116 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
117
36aedc90
JM		 118 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
119 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 120
121 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
122 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
123 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 124 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
125 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 126
127 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
128 .len = IEEE80211_MAX_SSID_LEN },
129 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
130 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 131 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 132 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 133 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 134 [NL80211_ATTR_STA_FLAGS2] = {
135 .len = sizeof(struct nl80211_sta_flag_update),
136 },
3f77316c 137 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
b23aa676
SO		 138 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
139 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
140 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
463d0183 141 [NL80211_ATTR_PID] = { .type = NLA_U32 },
8b787643 142 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
67fbb16b
SO		 143 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
144 .len = WLAN_PMKID_LEN },
9588bbd5
JM		 145 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
146 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
13ae75b1 147 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
026331c4
JM		 148 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
149 .len = IEEE80211_MAX_DATA_LEN },
150 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
55682965
JB		 151};
152
b9454e83
JB		 153/* policy for the attributes */
154static struct nla_policy
155nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = {
fffd0934 156 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
b9454e83
JB		 157 [NL80211_KEY_IDX] = { .type = NLA_U8 },
158 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
159 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
160 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
161 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
162};
163
a043897a
HS		 164/* ifidx get helper */
165static int nl80211_get_ifidx(struct netlink_callback *cb)
166{
167 int res;
168
169 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
170 nl80211_fam.attrbuf, nl80211_fam.maxattr,
171 nl80211_policy);
172 if (res)
173 return res;
174
175 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
176 return -EINVAL;
177
178 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
179 if (!res)
180 return -EINVAL;
181 return res;
182}
183
f4a11bb0
JB		 184/* IE validation */
185static bool is_valid_ie_attr(const struct nlattr *attr)
186{
187 const u8 *pos;
188 int len;
189
190 if (!attr)
191 return true;
192
193 pos = nla_data(attr);
194 len = nla_len(attr);
195
196 while (len) {
197 u8 elemlen;
198
199 if (len < 2)
200 return false;
201 len -= 2;
202
203 elemlen = pos[1];
204 if (elemlen > len)
205 return false;
206
207 len -= elemlen;
208 pos += 2 + elemlen;
209 }
210
211 return true;
212}
213
55682965
JB		 214/* message building helper */
215static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
216 int flags, u8 cmd)
217{
218 /* since there is no private header just add the generic one */
219 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
220}
221
5dab3b8a
LR		 222static int nl80211_msg_put_channel(struct sk_buff *msg,
223 struct ieee80211_channel *chan)
224{
225 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
226 chan->center_freq);
227
228 if (chan->flags & IEEE80211_CHAN_DISABLED)
229 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
230 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
231 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
232 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
233 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
234 if (chan->flags & IEEE80211_CHAN_RADAR)
235 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
236
237 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
238 DBM_TO_MBM(chan->max_power));
239
240 return 0;
241
242 nla_put_failure:
243 return -ENOBUFS;
244}
245
55682965
JB		 246/* netlink command implementations */
247
b9454e83
JB		 248struct key_parse {
249 struct key_params p;
250 int idx;
251 bool def, defmgmt;
252};
253
254static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
255{
256 struct nlattr *tb[NL80211_KEY_MAX + 1];
257 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
258 nl80211_key_policy);
259 if (err)
260 return err;
261
262 k->def = !!tb[NL80211_KEY_DEFAULT];
263 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
264
265 if (tb[NL80211_KEY_IDX])
266 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
267
268 if (tb[NL80211_KEY_DATA]) {
269 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
270 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
271 }
272
273 if (tb[NL80211_KEY_SEQ]) {
274 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
275 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
276 }
277
278 if (tb[NL80211_KEY_CIPHER])
279 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
280
281 return 0;
282}
283
284static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
285{
286 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
287 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
288 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
289 }
290
291 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
292 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
293 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
294 }
295
296 if (info->attrs[NL80211_ATTR_KEY_IDX])
297 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
298
299 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
300 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
301
302 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
303 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
304
305 return 0;
306}
307
308static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
309{
310 int err;
311
312 memset(k, 0, sizeof(*k));
313 k->idx = -1;
314
315 if (info->attrs[NL80211_ATTR_KEY])
316 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
317 else
318 err = nl80211_parse_key_old(info, k);
319
320 if (err)
321 return err;
322
323 if (k->def && k->defmgmt)
324 return -EINVAL;
325
326 if (k->idx != -1) {
327 if (k->defmgmt) {
328 if (k->idx < 4 || k->idx > 5)
329 return -EINVAL;
330 } else if (k->def) {
331 if (k->idx < 0 || k->idx > 3)
332 return -EINVAL;
333 } else {
334 if (k->idx < 0 || k->idx > 5)
335 return -EINVAL;
336 }
337 }
338
339 return 0;
340}
341
fffd0934
JB		 342static struct cfg80211_cached_keys *
343nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
344 struct nlattr *keys)
345{
346 struct key_parse parse;
347 struct nlattr *key;
348 struct cfg80211_cached_keys *result;
349 int rem, err, def = 0;
350
351 result = kzalloc(sizeof(*result), GFP_KERNEL);
352 if (!result)
353 return ERR_PTR(-ENOMEM);
354
355 result->def = -1;
356 result->defmgmt = -1;
357
358 nla_for_each_nested(key, keys, rem) {
359 memset(&parse, 0, sizeof(parse));
360 parse.idx = -1;
361
362 err = nl80211_parse_key_new(key, &parse);
363 if (err)
364 goto error;
365 err = -EINVAL;
366 if (!parse.p.key)
367 goto error;
368 if (parse.idx < 0 || parse.idx > 4)
369 goto error;
370 if (parse.def) {
371 if (def)
372 goto error;
373 def = 1;
374 result->def = parse.idx;
375 } else if (parse.defmgmt)
376 goto error;
377 err = cfg80211_validate_key_settings(rdev, &parse.p,
378 parse.idx, NULL);
379 if (err)
380 goto error;
381 result->params[parse.idx].cipher = parse.p.cipher;
382 result->params[parse.idx].key_len = parse.p.key_len;
383 result->params[parse.idx].key = result->data[parse.idx];
384 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
385 }
386
387 return result;
388 error:
389 kfree(result);
390 return ERR_PTR(err);
391}
392
393static int nl80211_key_allowed(struct wireless_dev *wdev)
394{
395 ASSERT_WDEV_LOCK(wdev);
396
397 if (!netif_running(wdev->netdev))
398 return -ENETDOWN;
399
400 switch (wdev->iftype) {
401 case NL80211_IFTYPE_AP:
402 case NL80211_IFTYPE_AP_VLAN:
403 break;
404 case NL80211_IFTYPE_ADHOC:
405 if (!wdev->current_bss)
406 return -ENOLINK;
407 break;
408 case NL80211_IFTYPE_STATION:
409 if (wdev->sme_state != CFG80211_SME_CONNECTED)
410 return -ENOLINK;
411 break;
412 default:
413 return -EINVAL;
414 }
415
416 return 0;
417}
418
55682965
JB		 419static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
420 struct cfg80211_registered_device *dev)
421{
422 void *hdr;
ee688b00
JB		 423 struct nlattr *nl_bands, *nl_band;
424 struct nlattr *nl_freqs, *nl_freq;
425 struct nlattr *nl_rates, *nl_rate;
f59ac048 426 struct nlattr *nl_modes;
8fdc621d 427 struct nlattr *nl_cmds;
ee688b00
JB		 428 enum ieee80211_band band;
429 struct ieee80211_channel *chan;
430 struct ieee80211_rate *rate;
431 int i;
f59ac048 432 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 433
434 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
435 if (!hdr)
436 return -1;
437
b5850a7a 438 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 439 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca 440
f5ea9120
JB		 441 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
442 cfg80211_rdev_list_generation);
443
b9a5f8ca
JM		 444 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
445 dev->wiphy.retry_short);
446 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
447 dev->wiphy.retry_long);
448 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
449 dev->wiphy.frag_threshold);
450 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
451 dev->wiphy.rts_threshold);
81077e82
LT		 452 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
453 dev->wiphy.coverage_class);
b9a5f8ca 454
2a519311
JB		 455 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
456 dev->wiphy.max_scan_ssids);
18a83659
JB		 457 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
458 dev->wiphy.max_scan_ie_len);
ee688b00 459
25e47c18
JB		 460 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
461 sizeof(u32) * dev->wiphy.n_cipher_suites,
462 dev->wiphy.cipher_suites);
463
67fbb16b
SO		 464 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
465 dev->wiphy.max_num_pmkids);
466
f59ac048
LR		 467 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
468 if (!nl_modes)
469 goto nla_put_failure;
470
471 i = 0;
472 while (ifmodes) {
473 if (ifmodes & 1)
474 NLA_PUT_FLAG(msg, i);
475 ifmodes >>= 1;
476 i++;
477 }
478
479 nla_nest_end(msg, nl_modes);
480
ee688b00
JB		 481 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
482 if (!nl_bands)
483 goto nla_put_failure;
484
485 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
486 if (!dev->wiphy.bands[band])
487 continue;
488
489 nl_band = nla_nest_start(msg, band);
490 if (!nl_band)
491 goto nla_put_failure;
492
d51626df
JB		 493 /* add HT info */
494 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
495 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
496 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
497 &dev->wiphy.bands[band]->ht_cap.mcs);
498 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
499 dev->wiphy.bands[band]->ht_cap.cap);
500 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
501 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
502 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
503 dev->wiphy.bands[band]->ht_cap.ampdu_density);
504 }
505
ee688b00
JB		 506 /* add frequencies */
507 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
508 if (!nl_freqs)
509 goto nla_put_failure;
510
511 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
512 nl_freq = nla_nest_start(msg, i);
513 if (!nl_freq)
514 goto nla_put_failure;
515
516 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 517
518 if (nl80211_msg_put_channel(msg, chan))
519 goto nla_put_failure;
e2f367f2 520
ee688b00
JB		 521 nla_nest_end(msg, nl_freq);
522 }
523
524 nla_nest_end(msg, nl_freqs);
525
526 /* add bitrates */
527 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
528 if (!nl_rates)
529 goto nla_put_failure;
530
531 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
532 nl_rate = nla_nest_start(msg, i);
533 if (!nl_rate)
534 goto nla_put_failure;
535
536 rate = &dev->wiphy.bands[band]->bitrates[i];
537 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
538 rate->bitrate);
539 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
540 NLA_PUT_FLAG(msg,
541 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
542
543 nla_nest_end(msg, nl_rate);
544 }
545
546 nla_nest_end(msg, nl_rates);
547
548 nla_nest_end(msg, nl_band);
549 }
550 nla_nest_end(msg, nl_bands);
551
8fdc621d
JB		 552 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
553 if (!nl_cmds)
554 goto nla_put_failure;
555
556 i = 0;
557#define CMD(op, n) \
558 do { \
559 if (dev->ops->op) { \
560 i++; \
561 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
562 } \
563 } while (0)
564
565 CMD(add_virtual_intf, NEW_INTERFACE);
566 CMD(change_virtual_intf, SET_INTERFACE);
567 CMD(add_key, NEW_KEY);
568 CMD(add_beacon, NEW_BEACON);
569 CMD(add_station, NEW_STATION);
570 CMD(add_mpath, NEW_MPATH);
571 CMD(set_mesh_params, SET_MESH_PARAMS);
572 CMD(change_bss, SET_BSS);
636a5d36
JM		 573 CMD(auth, AUTHENTICATE);
574 CMD(assoc, ASSOCIATE);
575 CMD(deauth, DEAUTHENTICATE);
576 CMD(disassoc, DISASSOCIATE);
04a773ad 577 CMD(join_ibss, JOIN_IBSS);
67fbb16b
SO		 578 CMD(set_pmksa, SET_PMKSA);
579 CMD(del_pmksa, DEL_PMKSA);
580 CMD(flush_pmksa, FLUSH_PMKSA);
9588bbd5 581 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
13ae75b1 582 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
026331c4 583 CMD(action, ACTION);
5be83de5 584 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
463d0183
JB		 585 i++;
586 NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS);
587 }
8fdc621d
JB		 588
589#undef CMD
b23aa676 590
6829c878 591 if (dev->ops->connect || dev->ops->auth) {
b23aa676
SO		 592 i++;
593 NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT);
594 }
595
6829c878 596 if (dev->ops->disconnect || dev->ops->deauth) {
b23aa676
SO		 597 i++;
598 NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT);
599 }
600
8fdc621d
JB		 601 nla_nest_end(msg, nl_cmds);
602
55682965
JB		 603 return genlmsg_end(msg, hdr);
604
605 nla_put_failure:
bc3ed28c
TG		 606 genlmsg_cancel(msg, hdr);
607 return -EMSGSIZE;
55682965
JB		 608}
609
610static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
611{
612 int idx = 0;
613 int start = cb->args[0];
614 struct cfg80211_registered_device *dev;
615
a1794390 616 mutex_lock(&cfg80211_mutex);
79c97e97 617 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
463d0183
JB		 618 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
619 continue;
b4637271 620 if (++idx <= start)
55682965
JB		 621 continue;
622 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
623 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 624 dev) < 0) {
625 idx--;
55682965 626 break;
b4637271 627 }
55682965 628 }
a1794390 629 mutex_unlock(&cfg80211_mutex);
55682965
JB		 630
631 cb->args[0] = idx;
632
633 return skb->len;
634}
635
636static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
637{
638 struct sk_buff *msg;
639 struct cfg80211_registered_device *dev;
640
641 dev = cfg80211_get_dev_from_info(info);
642 if (IS_ERR(dev))
643 return PTR_ERR(dev);
644
fd2120ca 645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 646 if (!msg)
647 goto out_err;
648
649 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
650 goto out_free;
651
4d0c8aea 652 cfg80211_unlock_rdev(dev);
55682965 653
134e6375 654 return genlmsg_reply(msg, info);
55682965
JB		 655
656 out_free:
657 nlmsg_free(msg);
658 out_err:
4d0c8aea 659 cfg80211_unlock_rdev(dev);
55682965
JB		 660 return -ENOBUFS;
661}
662
31888487
JM		 663static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
664 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
665 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
666 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
667 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
668 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
669};
670
671static int parse_txq_params(struct nlattr *tb[],
672 struct ieee80211_txq_params *txq_params)
673{
674 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
675 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
676 !tb[NL80211_TXQ_ATTR_AIFS])
677 return -EINVAL;
678
679 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
680 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
681 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
682 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
683 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
684
685 return 0;
686}
687
55682965
JB		 688static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
689{
690 struct cfg80211_registered_device *rdev;
31888487
JM		 691 int result = 0, rem_txq_params = 0;
692 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 693 u32 changed;
694 u8 retry_short = 0, retry_long = 0;
695 u32 frag_threshold = 0, rts_threshold = 0;
81077e82 696 u8 coverage_class = 0;
55682965 697
4bbf4d56 698 rtnl_lock();
55682965 699
4bbf4d56
JB		 700 mutex_lock(&cfg80211_mutex);
701
79c97e97 702 rdev = __cfg80211_rdev_from_info(info);
4bbf4d56 703 if (IS_ERR(rdev)) {
1f5fc70a 704 mutex_unlock(&cfg80211_mutex);
4bbf4d56
JB		 705 result = PTR_ERR(rdev);
706 goto unlock;
707 }
708
709 mutex_lock(&rdev->mtx);
710
711 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 712 result = cfg80211_dev_rename(
713 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 714
715 mutex_unlock(&cfg80211_mutex);
716
717 if (result)
718 goto bad_res;
31888487
JM		 719
720 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
721 struct ieee80211_txq_params txq_params;
722 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
723
724 if (!rdev->ops->set_txq_params) {
725 result = -EOPNOTSUPP;
726 goto bad_res;
727 }
728
729 nla_for_each_nested(nl_txq_params,
730 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
731 rem_txq_params) {
732 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
733 nla_data(nl_txq_params),
734 nla_len(nl_txq_params),
735 txq_params_policy);
736 result = parse_txq_params(tb, &txq_params);
737 if (result)
738 goto bad_res;
739
740 result = rdev->ops->set_txq_params(&rdev->wiphy,
741 &txq_params);
742 if (result)
743 goto bad_res;
744 }
745 }
55682965 746
72bdcf34 747 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
094d05dc 748 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
294196ab 749 u32 freq;
72bdcf34 750
306d6112
JB		 751 result = -EINVAL;
752
094d05dc
S		 753 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
754 channel_type = nla_get_u32(info->attrs[
755 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
756 if (channel_type != NL80211_CHAN_NO_HT &&
757 channel_type != NL80211_CHAN_HT20 &&
758 channel_type != NL80211_CHAN_HT40PLUS &&
759 channel_type != NL80211_CHAN_HT40MINUS)
72bdcf34 760 goto bad_res;
72bdcf34
JM		 761 }
762
763 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
306d6112 764
59bbb6f7 765 mutex_lock(&rdev->devlist_mtx);
4b181144 766 result = rdev_set_freq(rdev, NULL, freq, channel_type);
59bbb6f7 767 mutex_unlock(&rdev->devlist_mtx);
72bdcf34
JM		 768 if (result)
769 goto bad_res;
770 }
771
b9a5f8ca
JM		 772 changed = 0;
773
774 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
775 retry_short = nla_get_u8(
776 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
777 if (retry_short == 0) {
778 result = -EINVAL;
779 goto bad_res;
780 }
781 changed |= WIPHY_PARAM_RETRY_SHORT;
782 }
783
784 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
785 retry_long = nla_get_u8(
786 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
787 if (retry_long == 0) {
788 result = -EINVAL;
789 goto bad_res;
790 }
791 changed |= WIPHY_PARAM_RETRY_LONG;
792 }
793
794 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
795 frag_threshold = nla_get_u32(
796 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
797 if (frag_threshold < 256) {
798 result = -EINVAL;
799 goto bad_res;
800 }
801 if (frag_threshold != (u32) -1) {
802 /*
803 * Fragments (apart from the last one) are required to
804 * have even length. Make the fragmentation code
805 * simpler by stripping LSB should someone try to use
806 * odd threshold value.
807 */
808 frag_threshold &= ~0x1;
809 }
810 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
811 }
812
813 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
814 rts_threshold = nla_get_u32(
815 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
816 changed |= WIPHY_PARAM_RTS_THRESHOLD;
817 }
818
81077e82
LT		 819 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
820 coverage_class = nla_get_u8(
821 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
822 changed |= WIPHY_PARAM_COVERAGE_CLASS;
823 }
824
b9a5f8ca
JM		 825 if (changed) {
826 u8 old_retry_short, old_retry_long;
827 u32 old_frag_threshold, old_rts_threshold;
81077e82 828 u8 old_coverage_class;
b9a5f8ca
JM		 829
830 if (!rdev->ops->set_wiphy_params) {
831 result = -EOPNOTSUPP;
832 goto bad_res;
833 }
834
835 old_retry_short = rdev->wiphy.retry_short;
836 old_retry_long = rdev->wiphy.retry_long;
837 old_frag_threshold = rdev->wiphy.frag_threshold;
838 old_rts_threshold = rdev->wiphy.rts_threshold;
81077e82 839 old_coverage_class = rdev->wiphy.coverage_class;
b9a5f8ca
JM		 840
841 if (changed & WIPHY_PARAM_RETRY_SHORT)
842 rdev->wiphy.retry_short = retry_short;
843 if (changed & WIPHY_PARAM_RETRY_LONG)
844 rdev->wiphy.retry_long = retry_long;
845 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
846 rdev->wiphy.frag_threshold = frag_threshold;
847 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
848 rdev->wiphy.rts_threshold = rts_threshold;
81077e82
LT		 849 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
850 rdev->wiphy.coverage_class = coverage_class;
b9a5f8ca
JM		 851
852 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
853 if (result) {
854 rdev->wiphy.retry_short = old_retry_short;
855 rdev->wiphy.retry_long = old_retry_long;
856 rdev->wiphy.frag_threshold = old_frag_threshold;
857 rdev->wiphy.rts_threshold = old_rts_threshold;
81077e82 858 rdev->wiphy.coverage_class = old_coverage_class;
b9a5f8ca
JM		 859 }
860 }
72bdcf34 861
306d6112 862 bad_res:
4bbf4d56
JB		 863 mutex_unlock(&rdev->mtx);
864 unlock:
865 rtnl_unlock();
55682965
JB		 866 return result;
867}
868
869
870static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 871 struct cfg80211_registered_device *rdev,
55682965
JB		 872 struct net_device *dev)
873{
874 void *hdr;
875
876 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
877 if (!hdr)
878 return -1;
879
880 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 881 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 882 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 883 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
f5ea9120
JB		 884
885 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION,
886 rdev->devlist_generation ^
887 (cfg80211_rdev_list_generation << 2));
888
55682965
JB		 889 return genlmsg_end(msg, hdr);
890
891 nla_put_failure:
bc3ed28c
TG		 892 genlmsg_cancel(msg, hdr);
893 return -EMSGSIZE;
55682965
JB		 894}
895
896static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
897{
898 int wp_idx = 0;
899 int if_idx = 0;
900 int wp_start = cb->args[0];
901 int if_start = cb->args[1];
f5ea9120 902 struct cfg80211_registered_device *rdev;
55682965
JB		 903 struct wireless_dev *wdev;
904
a1794390 905 mutex_lock(&cfg80211_mutex);
f5ea9120
JB		 906 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
907 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
463d0183 908 continue;
bba95fef
JB		 909 if (wp_idx < wp_start) {
910 wp_idx++;
55682965 911 continue;
bba95fef 912 }
55682965
JB		 913 if_idx = 0;
914
f5ea9120
JB		 915 mutex_lock(&rdev->devlist_mtx);
916 list_for_each_entry(wdev, &rdev->netdev_list, list) {
bba95fef
JB		 917 if (if_idx < if_start) {
918 if_idx++;
55682965 919 continue;
bba95fef 920 }
55682965
JB		 921 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
922 cb->nlh->nlmsg_seq, NLM_F_MULTI,
f5ea9120
JB		 923 rdev, wdev->netdev) < 0) {
924 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 925 goto out;
926 }
927 if_idx++;
55682965 928 }
f5ea9120 929 mutex_unlock(&rdev->devlist_mtx);
bba95fef
JB		 930
931 wp_idx++;
55682965 932 }
bba95fef 933 out:
a1794390 934 mutex_unlock(&cfg80211_mutex);
55682965
JB		 935
936 cb->args[0] = wp_idx;
937 cb->args[1] = if_idx;
938
939 return skb->len;
940}
941
942static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
943{
944 struct sk_buff *msg;
945 struct cfg80211_registered_device *dev;
946 struct net_device *netdev;
947 int err;
948
463d0183 949 err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev);
55682965
JB		 950 if (err)
951 return err;
952
fd2120ca 953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 954 if (!msg)
955 goto out_err;
956
d726405a
JB		 957 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
958 dev, netdev) < 0)
55682965
JB		 959 goto out_free;
960
961 dev_put(netdev);
4d0c8aea 962 cfg80211_unlock_rdev(dev);
55682965 963
134e6375 964 return genlmsg_reply(msg, info);
55682965
JB		 965
966 out_free:
967 nlmsg_free(msg);
968 out_err:
969 dev_put(netdev);
4d0c8aea 970 cfg80211_unlock_rdev(dev);
55682965
JB		 971 return -ENOBUFS;
972}
973
66f7ac50
MW		 974static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
975 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
976 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
977 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
978 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
979 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
980};
981
982static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
983{
984 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
985 int flag;
986
987 *mntrflags = 0;
988
989 if (!nla)
990 return -EINVAL;
991
992 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
993 nla, mntr_flags_policy))
994 return -EINVAL;
995
996 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
997 if (flags[flag])
998 *mntrflags |= (1<<flag);
999
1000 return 0;
1001}
1002
9bc383de 1003static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
ad4bb6f8
JB		 1004 struct net_device *netdev, u8 use_4addr,
1005 enum nl80211_iftype iftype)
9bc383de 1006{
ad4bb6f8
JB		 1007 if (!use_4addr) {
1008 if (netdev && netdev->br_port)
1009 return -EBUSY;
9bc383de 1010 return 0;
ad4bb6f8 1011 }
9bc383de
JB		 1012
1013 switch (iftype) {
1014 case NL80211_IFTYPE_AP_VLAN:
1015 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1016 return 0;
1017 break;
1018 case NL80211_IFTYPE_STATION:
1019 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1020 return 0;
1021 break;
1022 default:
1023 break;
1024 }
1025
1026 return -EOPNOTSUPP;
1027}
1028
55682965
JB		 1029static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1030{
79c97e97 1031 struct cfg80211_registered_device *rdev;
2ec600d6 1032 struct vif_params params;
e36d56b6 1033 int err;
04a773ad 1034 enum nl80211_iftype otype, ntype;
55682965 1035 struct net_device *dev;
92ffe055 1036 u32 _flags, *flags = NULL;
ac7f9cfa 1037 bool change = false;
55682965 1038
2ec600d6
LCC		 1039 memset(&params, 0, sizeof(params));
1040
3b85875a
JB		 1041 rtnl_lock();
1042
463d0183 1043 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
55682965 1044 if (err)
3b85875a
JB		 1045 goto unlock_rtnl;
1046
04a773ad 1047 otype = ntype = dev->ieee80211_ptr->iftype;
55682965 1048
723b038d 1049 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 1050 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 1051 if (otype != ntype)
ac7f9cfa 1052 change = true;
04a773ad 1053 if (ntype > NL80211_IFTYPE_MAX) {
ac7f9cfa 1054 err = -EINVAL;
723b038d 1055 goto unlock;
ac7f9cfa 1056 }
723b038d
JB		 1057 }
1058
92ffe055 1059 if (info->attrs[NL80211_ATTR_MESH_ID]) {
04a773ad 1060 if (ntype != NL80211_IFTYPE_MESH_POINT) {
92ffe055
JB		 1061 err = -EINVAL;
1062 goto unlock;
1063 }
2ec600d6
LCC		 1064 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1065 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 1066 change = true;
2ec600d6
LCC		 1067 }
1068
8b787643
FF		 1069 if (info->attrs[NL80211_ATTR_4ADDR]) {
1070 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1071 change = true;
ad4bb6f8 1072 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
9bc383de
JB		 1073 if (err)
1074 goto unlock;
8b787643
FF		 1075 } else {
1076 params.use_4addr = -1;
1077 }
1078
92ffe055 1079 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
04a773ad 1080 if (ntype != NL80211_IFTYPE_MONITOR) {
92ffe055
JB		 1081 err = -EINVAL;
1082 goto unlock;
1083 }
1084 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1085 &_flags);
ac7f9cfa
JB		 1086 if (err)
1087 goto unlock;
1088
1089 flags = &_flags;
1090 change = true;
92ffe055 1091 }
3b85875a 1092
ac7f9cfa 1093 if (change)
3d54d255 1094 err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
ac7f9cfa
JB		 1095 else
1096 err = 0;
60719ffd 1097
9bc383de
JB		 1098 if (!err && params.use_4addr != -1)
1099 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1100
55682965 1101 unlock:
e36d56b6 1102 dev_put(dev);
79c97e97 1103 cfg80211_unlock_rdev(rdev);
3b85875a
JB		 1104 unlock_rtnl:
1105 rtnl_unlock();
55682965
JB		 1106 return err;
1107}
1108
1109static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1110{
79c97e97 1111 struct cfg80211_registered_device *rdev;
2ec600d6 1112 struct vif_params params;
55682965
JB		 1113 int err;
1114 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 1115 u32 flags;
55682965 1116
2ec600d6
LCC		 1117 memset(&params, 0, sizeof(params));
1118
55682965
JB		 1119 if (!info->attrs[NL80211_ATTR_IFNAME])
1120 return -EINVAL;
1121
1122 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1123 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1124 if (type > NL80211_IFTYPE_MAX)
1125 return -EINVAL;
1126 }
1127
3b85875a
JB		 1128 rtnl_lock();
1129
79c97e97
JB		 1130 rdev = cfg80211_get_dev_from_info(info);
1131 if (IS_ERR(rdev)) {
1132 err = PTR_ERR(rdev);
3b85875a
JB		 1133 goto unlock_rtnl;
1134 }
55682965 1135
79c97e97
JB		 1136 if (!rdev->ops->add_virtual_intf ||
1137 !(rdev->wiphy.interface_modes & (1 << type))) {
55682965
JB		 1138 err = -EOPNOTSUPP;
1139 goto unlock;
1140 }
1141
2ec600d6
LCC		 1142 if (type == NL80211_IFTYPE_MESH_POINT &&
1143 info->attrs[NL80211_ATTR_MESH_ID]) {
1144 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
1145 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1146 }
1147
9bc383de 1148 if (info->attrs[NL80211_ATTR_4ADDR]) {
8b787643 1149 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
ad4bb6f8 1150 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
9bc383de
JB		 1151 if (err)
1152 goto unlock;
1153 }
8b787643 1154
66f7ac50
MW		 1155 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1156 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
1157 &flags);
79c97e97 1158 err = rdev->ops->add_virtual_intf(&rdev->wiphy,
66f7ac50 1159 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 1160 type, err ? NULL : &flags, &params);
2ec600d6 1161
55682965 1162 unlock:
79c97e97 1163 cfg80211_unlock_rdev(rdev);
3b85875a
JB		 1164 unlock_rtnl:
1165 rtnl_unlock();
55682965
JB		 1166 return err;
1167}
1168
1169static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
1170{
79c97e97 1171 struct cfg80211_registered_device *rdev;
463d0183 1172 int err;
55682965
JB		 1173 struct net_device *dev;
1174
3b85875a
JB		 1175 rtnl_lock();
1176
463d0183 1177 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
55682965 1178 if (err)
3b85875a 1179 goto unlock_rtnl;
55682965 1180
79c97e97 1181 if (!rdev->ops->del_virtual_intf) {
55682965
JB		 1182 err = -EOPNOTSUPP;
1183 goto out;
1184 }
1185
463d0183 1186 err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
55682965
JB		 1187
1188 out:
79c97e97 1189 cfg80211_unlock_rdev(rdev);
463d0183 1190 dev_put(dev);
3b85875a
JB		 1191 unlock_rtnl:
1192 rtnl_unlock();
55682965
JB		 1193 return err;
1194}
1195
41ade00f
JB		 1196struct get_key_cookie {
1197 struct sk_buff *msg;
1198 int error;
b9454e83 1199 int idx;
41ade00f
JB		 1200};
1201
1202static void get_key_callback(void *c, struct key_params *params)
1203{
b9454e83 1204 struct nlattr *key;
41ade00f
JB		 1205 struct get_key_cookie *cookie = c;
1206
1207 if (params->key)
1208 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
1209 params->key_len, params->key);
1210
1211 if (params->seq)
1212 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
1213 params->seq_len, params->seq);
1214
1215 if (params->cipher)
1216 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
1217 params->cipher);
1218
b9454e83
JB		 1219 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
1220 if (!key)
1221 goto nla_put_failure;
1222
1223 if (params->key)
1224 NLA_PUT(cookie->msg, NL80211_KEY_DATA,
1225 params->key_len, params->key);
1226
1227 if (params->seq)
1228 NLA_PUT(cookie->msg, NL80211_KEY_SEQ,
1229 params->seq_len, params->seq);
1230
1231 if (params->cipher)
1232 NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER,
1233 params->cipher);
1234
1235 NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx);
1236
1237 nla_nest_end(cookie->msg, key);
1238
41ade00f
JB		 1239 return;
1240 nla_put_failure:
1241 cookie->error = 1;
1242}
1243
1244static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
1245{
79c97e97 1246 struct cfg80211_registered_device *rdev;
41ade00f
JB		 1247 int err;
1248 struct net_device *dev;
1249 u8 key_idx = 0;
1250 u8 *mac_addr = NULL;
1251 struct get_key_cookie cookie = {
1252 .error = 0,
1253 };
1254 void *hdr;
1255 struct sk_buff *msg;
1256
1257 if (info->attrs[NL80211_ATTR_KEY_IDX])
1258 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1259
3cfcf6ac 1260 if (key_idx > 5)
41ade00f
JB		 1261 return -EINVAL;
1262
1263 if (info->attrs[NL80211_ATTR_MAC])
1264 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1265
3b85875a
JB		 1266 rtnl_lock();
1267
463d0183 1268 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1269 if (err)
3b85875a 1270 goto unlock_rtnl;
41ade00f 1271
79c97e97 1272 if (!rdev->ops->get_key) {
41ade00f
JB		 1273 err = -EOPNOTSUPP;
1274 goto out;
1275 }
1276
fd2120ca 1277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
41ade00f
JB		 1278 if (!msg) {
1279 err = -ENOMEM;
1280 goto out;
1281 }
1282
1283 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1284 NL80211_CMD_NEW_KEY);
1285
1286 if (IS_ERR(hdr)) {
1287 err = PTR_ERR(hdr);
6c95e2a2 1288 goto free_msg;
41ade00f
JB		 1289 }
1290
1291 cookie.msg = msg;
b9454e83 1292 cookie.idx = key_idx;
41ade00f
JB		 1293
1294 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1295 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1296 if (mac_addr)
1297 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1298
79c97e97 1299 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr,
41ade00f 1300 &cookie, get_key_callback);
41ade00f
JB		 1301
1302 if (err)
6c95e2a2 1303 goto free_msg;
41ade00f
JB		 1304
1305 if (cookie.error)
1306 goto nla_put_failure;
1307
1308 genlmsg_end(msg, hdr);
134e6375 1309 err = genlmsg_reply(msg, info);
41ade00f
JB		 1310 goto out;
1311
1312 nla_put_failure:
1313 err = -ENOBUFS;
6c95e2a2 1314 free_msg:
41ade00f
JB		 1315 nlmsg_free(msg);
1316 out:
79c97e97 1317 cfg80211_unlock_rdev(rdev);
41ade00f 1318 dev_put(dev);
3b85875a
JB		 1319 unlock_rtnl:
1320 rtnl_unlock();
1321
41ade00f
JB		 1322 return err;
1323}
1324
1325static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1326{
79c97e97 1327 struct cfg80211_registered_device *rdev;
b9454e83 1328 struct key_parse key;
41ade00f
JB		 1329 int err;
1330 struct net_device *dev;
3cfcf6ac
JM		 1331 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1332 u8 key_index);
41ade00f 1333
b9454e83
JB		 1334 err = nl80211_parse_key(info, &key);
1335 if (err)
1336 return err;
41ade00f 1337
b9454e83 1338 if (key.idx < 0)
41ade00f
JB		 1339 return -EINVAL;
1340
b9454e83
JB		 1341 /* only support setting default key */
1342 if (!key.def && !key.defmgmt)
41ade00f
JB		 1343 return -EINVAL;
1344
3b85875a
JB		 1345 rtnl_lock();
1346
463d0183 1347 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1348 if (err)
3b85875a 1349 goto unlock_rtnl;
41ade00f 1350
b9454e83 1351 if (key.def)
79c97e97 1352 func = rdev->ops->set_default_key;
3cfcf6ac 1353 else
79c97e97 1354 func = rdev->ops->set_default_mgmt_key;
3cfcf6ac
JM		 1355
1356 if (!func) {
41ade00f
JB		 1357 err = -EOPNOTSUPP;
1358 goto out;
1359 }
1360
fffd0934
JB		 1361 wdev_lock(dev->ieee80211_ptr);
1362 err = nl80211_key_allowed(dev->ieee80211_ptr);
1363 if (!err)
1364 err = func(&rdev->wiphy, dev, key.idx);
1365
3d23e349 1366#ifdef CONFIG_CFG80211_WEXT
08645126 1367 if (!err) {
79c97e97 1368 if (func == rdev->ops->set_default_key)
b9454e83 1369 dev->ieee80211_ptr->wext.default_key = key.idx;
08645126 1370 else
b9454e83 1371 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
08645126
JB		 1372 }
1373#endif
fffd0934 1374 wdev_unlock(dev->ieee80211_ptr);
41ade00f
JB		 1375
1376 out:
79c97e97 1377 cfg80211_unlock_rdev(rdev);
41ade00f 1378 dev_put(dev);
3b85875a
JB		 1379
1380 unlock_rtnl:
1381 rtnl_unlock();
1382
41ade00f
JB		 1383 return err;
1384}
1385
1386static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1387{
79c97e97 1388 struct cfg80211_registered_device *rdev;
fffd0934 1389 int err;
41ade00f 1390 struct net_device *dev;
b9454e83 1391 struct key_parse key;
41ade00f
JB		 1392 u8 *mac_addr = NULL;
1393
b9454e83
JB		 1394 err = nl80211_parse_key(info, &key);
1395 if (err)
1396 return err;
41ade00f 1397
b9454e83 1398 if (!key.p.key)
41ade00f
JB		 1399 return -EINVAL;
1400
41ade00f
JB		 1401 if (info->attrs[NL80211_ATTR_MAC])
1402 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1403
3b85875a
JB		 1404 rtnl_lock();
1405
463d0183 1406 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1407 if (err)
3b85875a 1408 goto unlock_rtnl;
41ade00f 1409
fffd0934
JB		 1410 if (!rdev->ops->add_key) {
1411 err = -EOPNOTSUPP;
25e47c18
JB		 1412 goto out;
1413 }
1414
fffd0934
JB		 1415 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) {
1416 err = -EINVAL;
41ade00f
JB		 1417 goto out;
1418 }
1419
fffd0934
JB		 1420 wdev_lock(dev->ieee80211_ptr);
1421 err = nl80211_key_allowed(dev->ieee80211_ptr);
1422 if (!err)
1423 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
1424 mac_addr, &key.p);
1425 wdev_unlock(dev->ieee80211_ptr);
41ade00f
JB		 1426
1427 out:
79c97e97 1428 cfg80211_unlock_rdev(rdev);
41ade00f 1429 dev_put(dev);
3b85875a
JB		 1430 unlock_rtnl:
1431 rtnl_unlock();
1432
41ade00f
JB		 1433 return err;
1434}
1435
1436static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1437{
79c97e97 1438 struct cfg80211_registered_device *rdev;
41ade00f
JB		 1439 int err;
1440 struct net_device *dev;
41ade00f 1441 u8 *mac_addr = NULL;
b9454e83 1442 struct key_parse key;
41ade00f 1443
b9454e83
JB		 1444 err = nl80211_parse_key(info, &key);
1445 if (err)
1446 return err;
41ade00f
JB		 1447
1448 if (info->attrs[NL80211_ATTR_MAC])
1449 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1450
3b85875a
JB		 1451 rtnl_lock();
1452
463d0183 1453 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
41ade00f 1454 if (err)
3b85875a 1455 goto unlock_rtnl;
41ade00f 1456
79c97e97 1457 if (!rdev->ops->del_key) {
41ade00f
JB		 1458 err = -EOPNOTSUPP;
1459 goto out;
1460 }
1461
fffd0934
JB		 1462 wdev_lock(dev->ieee80211_ptr);
1463 err = nl80211_key_allowed(dev->ieee80211_ptr);
1464 if (!err)
1465 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr);
41ade00f 1466
3d23e349 1467#ifdef CONFIG_CFG80211_WEXT
08645126 1468 if (!err) {
b9454e83 1469 if (key.idx == dev->ieee80211_ptr->wext.default_key)
08645126 1470 dev->ieee80211_ptr->wext.default_key = -1;
b9454e83 1471 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
08645126
JB		 1472 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1473 }
1474#endif
fffd0934 1475 wdev_unlock(dev->ieee80211_ptr);
08645126 1476
41ade00f 1477 out:
79c97e97 1478 cfg80211_unlock_rdev(rdev);
41ade00f 1479 dev_put(dev);
3b85875a
JB		 1480
1481 unlock_rtnl:
1482 rtnl_unlock();
1483
41ade00f
JB		 1484 return err;
1485}
1486
ed1b6cc7
JB		 1487static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1488{
1489 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1490 struct beacon_parameters *info);
79c97e97 1491 struct cfg80211_registered_device *rdev;
ed1b6cc7
JB		 1492 int err;
1493 struct net_device *dev;
1494 struct beacon_parameters params;
1495 int haveinfo = 0;
1496
f4a11bb0
JB		 1497 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1498 return -EINVAL;
1499
3b85875a
JB		 1500 rtnl_lock();
1501
463d0183 1502 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
ed1b6cc7 1503 if (err)
3b85875a 1504 goto unlock_rtnl;
ed1b6cc7 1505
eec60b03
JM		 1506 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1507 err = -EOPNOTSUPP;
1508 goto out;
1509 }
1510
ed1b6cc7
JB		 1511 switch (info->genlhdr->cmd) {
1512 case NL80211_CMD_NEW_BEACON:
1513 /* these are required for NEW_BEACON */
1514 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1515 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1516 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1517 err = -EINVAL;
1518 goto out;
1519 }
1520
79c97e97 1521 call = rdev->ops->add_beacon;
ed1b6cc7
JB		 1522 break;
1523 case NL80211_CMD_SET_BEACON:
79c97e97 1524 call = rdev->ops->set_beacon;
ed1b6cc7
JB		 1525 break;
1526 default:
1527 WARN_ON(1);
1528 err = -EOPNOTSUPP;
1529 goto out;
1530 }
1531
1532 if (!call) {
1533 err = -EOPNOTSUPP;
1534 goto out;
1535 }
1536
1537 memset(&params, 0, sizeof(params));
1538
1539 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1540 params.interval =
1541 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1542 haveinfo = 1;
1543 }
1544
1545 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1546 params.dtim_period =
1547 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1548 haveinfo = 1;
1549 }
1550
1551 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1552 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1553 params.head_len =
1554 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1555 haveinfo = 1;
1556 }
1557
1558 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1559 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1560 params.tail_len =
1561 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1562 haveinfo = 1;
1563 }
1564
1565 if (!haveinfo) {
1566 err = -EINVAL;
1567 goto out;
1568 }
1569
79c97e97 1570 err = call(&rdev->wiphy, dev, &params);
ed1b6cc7
JB		 1571
1572 out:
79c97e97 1573 cfg80211_unlock_rdev(rdev);
ed1b6cc7 1574 dev_put(dev);
3b85875a
JB		 1575 unlock_rtnl:
1576 rtnl_unlock();
1577
ed1b6cc7
JB		 1578 return err;
1579}
1580
1581static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1582{
79c97e97 1583 struct cfg80211_registered_device *rdev;
ed1b6cc7
JB		 1584 int err;
1585 struct net_device *dev;
1586
3b85875a
JB		 1587 rtnl_lock();
1588
463d0183 1589 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
ed1b6cc7 1590 if (err)
3b85875a 1591 goto unlock_rtnl;
ed1b6cc7 1592
79c97e97 1593 if (!rdev->ops->del_beacon) {
ed1b6cc7
JB		 1594 err = -EOPNOTSUPP;
1595 goto out;
1596 }
1597
eec60b03
JM		 1598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1599 err = -EOPNOTSUPP;
1600 goto out;
1601 }
79c97e97 1602 err = rdev->ops->del_beacon(&rdev->wiphy, dev);
ed1b6cc7
JB		 1603
1604 out:
79c97e97 1605 cfg80211_unlock_rdev(rdev);
ed1b6cc7 1606 dev_put(dev);
3b85875a
JB		 1607 unlock_rtnl:
1608 rtnl_unlock();
1609
ed1b6cc7
JB		 1610 return err;
1611}
1612
5727ef1b
JB		 1613static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1614 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1615 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1616 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1617 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1618};
1619
eccb8e8f
JB		 1620static int parse_station_flags(struct genl_info *info,
1621 struct station_parameters *params)
5727ef1b
JB		 1622{
1623 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1624 struct nlattr *nla;
5727ef1b
JB		 1625 int flag;
1626
eccb8e8f
JB		 1627 /*
1628 * Try parsing the new attribute first so userspace
1629 * can specify both for older kernels.
1630 */
1631 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1632 if (nla) {
1633 struct nl80211_sta_flag_update *sta_flags;
1634
1635 sta_flags = nla_data(nla);
1636 params->sta_flags_mask = sta_flags->mask;
1637 params->sta_flags_set = sta_flags->set;
1638 if ((params->sta_flags_mask |
1639 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1640 return -EINVAL;
1641 return 0;
1642 }
1643
1644 /* if present, parse the old attribute */
5727ef1b 1645
eccb8e8f 1646 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1647 if (!nla)
1648 return 0;
1649
1650 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1651 nla, sta_flags_policy))
1652 return -EINVAL;
1653
eccb8e8f
JB		 1654 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1655 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1656
1657 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1658 if (flags[flag])
eccb8e8f 1659 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1660
1661 return 0;
1662}
1663
fd5b74dc
JB		 1664static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1665 int flags, struct net_device *dev,
98b62183 1666 const u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1667{
1668 void *hdr;
420e7fab
HR		 1669 struct nlattr *sinfoattr, *txrate;
1670 u16 bitrate;
fd5b74dc
JB		 1671
1672 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1673 if (!hdr)
1674 return -1;
1675
1676 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1677 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1678
f5ea9120
JB		 1679 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation);
1680
2ec600d6
LCC		 1681 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1682 if (!sinfoattr)
fd5b74dc 1683 goto nla_put_failure;
2ec600d6
LCC		 1684 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1685 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1686 sinfo->inactive_time);
1687 if (sinfo->filled & STATION_INFO_RX_BYTES)
1688 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1689 sinfo->rx_bytes);
1690 if (sinfo->filled & STATION_INFO_TX_BYTES)
1691 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1692 sinfo->tx_bytes);
1693 if (sinfo->filled & STATION_INFO_LLID)
1694 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1695 sinfo->llid);
1696 if (sinfo->filled & STATION_INFO_PLID)
1697 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1698 sinfo->plid);
1699 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1700 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1701 sinfo->plink_state);
420e7fab
HR		 1702 if (sinfo->filled & STATION_INFO_SIGNAL)
1703 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1704 sinfo->signal);
1705 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1706 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1707 if (!txrate)
1708 goto nla_put_failure;
1709
254416aa
JL		 1710 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
1711 bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
420e7fab
HR		 1712 if (bitrate > 0)
1713 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1714
420e7fab
HR		 1715 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1716 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1717 sinfo->txrate.mcs);
1718 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1719 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1720 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1721 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1722
1723 nla_nest_end(msg, txrate);
1724 }
98c8a60a
JM		 1725 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1726 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1727 sinfo->rx_packets);
1728 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1729 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1730 sinfo->tx_packets);
2ec600d6 1731 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1732
1733 return genlmsg_end(msg, hdr);
1734
1735 nla_put_failure:
bc3ed28c
TG		 1736 genlmsg_cancel(msg, hdr);
1737 return -EMSGSIZE;
fd5b74dc
JB		 1738}
1739
2ec600d6 1740static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1741 struct netlink_callback *cb)
2ec600d6 1742{
2ec600d6
LCC		 1743 struct station_info sinfo;
1744 struct cfg80211_registered_device *dev;
bba95fef 1745 struct net_device *netdev;
2ec600d6 1746 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 1747 int ifidx = cb->args[0];
1748 int sta_idx = cb->args[1];
2ec600d6 1749 int err;
2ec600d6 1750
a043897a
HS		 1751 if (!ifidx)
1752 ifidx = nl80211_get_ifidx(cb);
1753 if (ifidx < 0)
1754 return ifidx;
2ec600d6 1755
3b85875a
JB		 1756 rtnl_lock();
1757
463d0183 1758 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3b85875a
JB		 1759 if (!netdev) {
1760 err = -ENODEV;
1761 goto out_rtnl;
1762 }
2ec600d6 1763
463d0183 1764 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
bba95fef
JB		 1765 if (IS_ERR(dev)) {
1766 err = PTR_ERR(dev);
3b85875a 1767 goto out_rtnl;
bba95fef
JB		 1768 }
1769
1770 if (!dev->ops->dump_station) {
eec60b03 1771 err = -EOPNOTSUPP;
bba95fef
JB		 1772 goto out_err;
1773 }
1774
bba95fef
JB		 1775 while (1) {
1776 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1777 mac_addr, &sinfo);
1778 if (err == -ENOENT)
1779 break;
1780 if (err)
3b85875a 1781 goto out_err;
bba95fef
JB		 1782
1783 if (nl80211_send_station(skb,
1784 NETLINK_CB(cb->skb).pid,
1785 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1786 netdev, mac_addr,
1787 &sinfo) < 0)
1788 goto out;
1789
1790 sta_idx++;
1791 }
1792
1793
1794 out:
1795 cb->args[1] = sta_idx;
1796 err = skb->len;
bba95fef 1797 out_err:
4d0c8aea 1798 cfg80211_unlock_rdev(dev);
3b85875a
JB		 1799 out_rtnl:
1800 rtnl_unlock();
bba95fef
JB		 1801
1802 return err;
2ec600d6 1803}
fd5b74dc 1804
5727ef1b
JB		 1805static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1806{
79c97e97 1807 struct cfg80211_registered_device *rdev;
fd5b74dc
JB		 1808 int err;
1809 struct net_device *dev;
2ec600d6 1810 struct station_info sinfo;
fd5b74dc
JB		 1811 struct sk_buff *msg;
1812 u8 *mac_addr = NULL;
1813
2ec600d6 1814 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1815
1816 if (!info->attrs[NL80211_ATTR_MAC])
1817 return -EINVAL;
1818
1819 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1820
3b85875a
JB		 1821 rtnl_lock();
1822
463d0183 1823 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
fd5b74dc 1824 if (err)
3b85875a 1825 goto out_rtnl;
fd5b74dc 1826
79c97e97 1827 if (!rdev->ops->get_station) {
fd5b74dc
JB		 1828 err = -EOPNOTSUPP;
1829 goto out;
1830 }
1831
79c97e97 1832 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2ec600d6
LCC		 1833 if (err)
1834 goto out;
1835
fd2120ca 1836 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc
JB		 1837 if (!msg)
1838 goto out;
1839
1840 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1841 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1842 goto out_free;
1843
134e6375 1844 err = genlmsg_reply(msg, info);
fd5b74dc
JB		 1845 goto out;
1846
1847 out_free:
1848 nlmsg_free(msg);
fd5b74dc 1849 out:
79c97e97 1850 cfg80211_unlock_rdev(rdev);
fd5b74dc 1851 dev_put(dev);
3b85875a
JB		 1852 out_rtnl:
1853 rtnl_unlock();
1854
fd5b74dc 1855 return err;
5727ef1b
JB		 1856}
1857
1858/*
c258d2de 1859 * Get vlan interface making sure it is running and on the right wiphy.
5727ef1b 1860 */
463d0183 1861static int get_vlan(struct genl_info *info,
5727ef1b
JB		 1862 struct cfg80211_registered_device *rdev,
1863 struct net_device **vlan)
1864{
463d0183 1865 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
5727ef1b
JB		 1866 *vlan = NULL;
1867
1868 if (vlanattr) {
463d0183
JB		 1869 *vlan = dev_get_by_index(genl_info_net(info),
1870 nla_get_u32(vlanattr));
5727ef1b
JB		 1871 if (!*vlan)
1872 return -ENODEV;
1873 if (!(*vlan)->ieee80211_ptr)
1874 return -EINVAL;
1875 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1876 return -EINVAL;
c258d2de
FF		 1877 if (!netif_running(*vlan))
1878 return -ENETDOWN;
5727ef1b
JB		 1879 }
1880 return 0;
1881}
1882
1883static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1884{
79c97e97 1885 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 1886 int err;
1887 struct net_device *dev;
1888 struct station_parameters params;
1889 u8 *mac_addr = NULL;
1890
1891 memset(&params, 0, sizeof(params));
1892
1893 params.listen_interval = -1;
1894
1895 if (info->attrs[NL80211_ATTR_STA_AID])
1896 return -EINVAL;
1897
1898 if (!info->attrs[NL80211_ATTR_MAC])
1899 return -EINVAL;
1900
1901 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1902
1903 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1904 params.supported_rates =
1905 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1906 params.supported_rates_len =
1907 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1908 }
1909
1910 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1911 params.listen_interval =
1912 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1913
36aedc90
JM		 1914 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1915 params.ht_capa =
1916 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1917
eccb8e8f 1918 if (parse_station_flags(info, &params))
5727ef1b
JB		 1919 return -EINVAL;
1920
2ec600d6
LCC		 1921 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1922 params.plink_action =
1923 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1924
3b85875a
JB		 1925 rtnl_lock();
1926
463d0183 1927 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 1928 if (err)
3b85875a 1929 goto out_rtnl;
5727ef1b 1930
463d0183 1931 err = get_vlan(info, rdev, &params.vlan);
a97f4424 1932 if (err)
034d655e 1933 goto out;
a97f4424
JB		 1934
1935 /* validate settings */
1936 err = 0;
1937
1938 switch (dev->ieee80211_ptr->iftype) {
1939 case NL80211_IFTYPE_AP:
1940 case NL80211_IFTYPE_AP_VLAN:
1941 /* disallow mesh-specific things */
1942 if (params.plink_action)
1943 err = -EINVAL;
1944 break;
1945 case NL80211_IFTYPE_STATION:
1946 /* disallow everything but AUTHORIZED flag */
1947 if (params.plink_action)
1948 err = -EINVAL;
1949 if (params.vlan)
1950 err = -EINVAL;
1951 if (params.supported_rates)
1952 err = -EINVAL;
1953 if (params.ht_capa)
1954 err = -EINVAL;
1955 if (params.listen_interval >= 0)
1956 err = -EINVAL;
1957 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
1958 err = -EINVAL;
1959 break;
1960 case NL80211_IFTYPE_MESH_POINT:
1961 /* disallow things mesh doesn't support */
1962 if (params.vlan)
1963 err = -EINVAL;
1964 if (params.ht_capa)
1965 err = -EINVAL;
1966 if (params.listen_interval >= 0)
1967 err = -EINVAL;
1968 if (params.supported_rates)
1969 err = -EINVAL;
1970 if (params.sta_flags_mask)
1971 err = -EINVAL;
1972 break;
1973 default:
1974 err = -EINVAL;
034d655e
JB		 1975 }
1976
5727ef1b
JB		 1977 if (err)
1978 goto out;
1979
79c97e97 1980 if (!rdev->ops->change_station) {
5727ef1b
JB		 1981 err = -EOPNOTSUPP;
1982 goto out;
1983 }
1984
79c97e97 1985 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 1986
1987 out:
1988 if (params.vlan)
1989 dev_put(params.vlan);
79c97e97 1990 cfg80211_unlock_rdev(rdev);
5727ef1b 1991 dev_put(dev);
3b85875a
JB		 1992 out_rtnl:
1993 rtnl_unlock();
1994
5727ef1b
JB		 1995 return err;
1996}
1997
1998static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1999{
79c97e97 2000 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 2001 int err;
2002 struct net_device *dev;
2003 struct station_parameters params;
2004 u8 *mac_addr = NULL;
2005
2006 memset(&params, 0, sizeof(params));
2007
2008 if (!info->attrs[NL80211_ATTR_MAC])
2009 return -EINVAL;
2010
5727ef1b
JB		 2011 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2012 return -EINVAL;
2013
2014 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
2015 return -EINVAL;
2016
0e956c13
TLSC		 2017 if (!info->attrs[NL80211_ATTR_STA_AID])
2018 return -EINVAL;
2019
5727ef1b
JB		 2020 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2021 params.supported_rates =
2022 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2023 params.supported_rates_len =
2024 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2025 params.listen_interval =
2026 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
51b50fbe 2027
0e956c13
TLSC		 2028 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
2029 if (!params.aid || params.aid > IEEE80211_MAX_AID)
2030 return -EINVAL;
51b50fbe 2031
36aedc90
JM		 2032 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
2033 params.ht_capa =
2034 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 2035
eccb8e8f 2036 if (parse_station_flags(info, &params))
5727ef1b
JB		 2037 return -EINVAL;
2038
3b85875a
JB		 2039 rtnl_lock();
2040
463d0183 2041 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 2042 if (err)
3b85875a 2043 goto out_rtnl;
5727ef1b 2044
0e956c13
TLSC		 2045 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2046 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
2047 err = -EINVAL;
2048 goto out;
2049 }
2050
463d0183 2051 err = get_vlan(info, rdev, &params.vlan);
a97f4424 2052 if (err)
e80cf853 2053 goto out;
a97f4424
JB		 2054
2055 /* validate settings */
2056 err = 0;
2057
79c97e97 2058 if (!rdev->ops->add_station) {
5727ef1b
JB		 2059 err = -EOPNOTSUPP;
2060 goto out;
2061 }
2062
35a8efe1
JM		 2063 if (!netif_running(dev)) {
2064 err = -ENETDOWN;
2065 goto out;
2066 }
2067
79c97e97 2068 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 2069
2070 out:
2071 if (params.vlan)
2072 dev_put(params.vlan);
79c97e97 2073 cfg80211_unlock_rdev(rdev);
5727ef1b 2074 dev_put(dev);
3b85875a
JB		 2075 out_rtnl:
2076 rtnl_unlock();
2077
5727ef1b
JB		 2078 return err;
2079}
2080
2081static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
2082{
79c97e97 2083 struct cfg80211_registered_device *rdev;
5727ef1b
JB		 2084 int err;
2085 struct net_device *dev;
2086 u8 *mac_addr = NULL;
2087
2088 if (info->attrs[NL80211_ATTR_MAC])
2089 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2090
3b85875a
JB		 2091 rtnl_lock();
2092
463d0183 2093 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
5727ef1b 2094 if (err)
3b85875a 2095 goto out_rtnl;
5727ef1b 2096
e80cf853 2097 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
0e956c13 2098 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
e80cf853
JB		 2099 err = -EINVAL;
2100 goto out;
2101 }
2102
79c97e97 2103 if (!rdev->ops->del_station) {
5727ef1b
JB		 2104 err = -EOPNOTSUPP;
2105 goto out;
2106 }
2107
79c97e97 2108 err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
5727ef1b
JB		 2109
2110 out:
79c97e97 2111 cfg80211_unlock_rdev(rdev);
5727ef1b 2112 dev_put(dev);
3b85875a
JB		 2113 out_rtnl:
2114 rtnl_unlock();
2115
5727ef1b
JB		 2116 return err;
2117}
2118
2ec600d6
LCC		 2119static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
2120 int flags, struct net_device *dev,
2121 u8 *dst, u8 *next_hop,
2122 struct mpath_info *pinfo)
2123{
2124 void *hdr;
2125 struct nlattr *pinfoattr;
2126
2127 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2128 if (!hdr)
2129 return -1;
2130
2131 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2132 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
2133 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
2134
f5ea9120
JB		 2135 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation);
2136
2ec600d6
LCC		 2137 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
2138 if (!pinfoattr)
2139 goto nla_put_failure;
2140 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
2141 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
2142 pinfo->frame_qlen);
d19b3bf6
RP		 2143 if (pinfo->filled & MPATH_INFO_SN)
2144 NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN,
2145 pinfo->sn);
2ec600d6
LCC		 2146 if (pinfo->filled & MPATH_INFO_METRIC)
2147 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
2148 pinfo->metric);
2149 if (pinfo->filled & MPATH_INFO_EXPTIME)
2150 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
2151 pinfo->exptime);
2152 if (pinfo->filled & MPATH_INFO_FLAGS)
2153 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
2154 pinfo->flags);
2155 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
2156 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
2157 pinfo->discovery_timeout);
2158 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
2159 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
2160 pinfo->discovery_retries);
2161
2162 nla_nest_end(msg, pinfoattr);
2163
2164 return genlmsg_end(msg, hdr);
2165
2166 nla_put_failure:
bc3ed28c
TG		 2167 genlmsg_cancel(msg, hdr);
2168 return -EMSGSIZE;
2ec600d6
LCC		 2169}
2170
2171static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 2172 struct netlink_callback *cb)
2ec600d6 2173{
2ec600d6
LCC		 2174 struct mpath_info pinfo;
2175 struct cfg80211_registered_device *dev;
bba95fef 2176 struct net_device *netdev;
2ec600d6
LCC		 2177 u8 dst[ETH_ALEN];
2178 u8 next_hop[ETH_ALEN];
bba95fef
JB		 2179 int ifidx = cb->args[0];
2180 int path_idx = cb->args[1];
2ec600d6 2181 int err;
2ec600d6 2182
a043897a
HS		 2183 if (!ifidx)
2184 ifidx = nl80211_get_ifidx(cb);
2185 if (ifidx < 0)
2186 return ifidx;
bba95fef 2187
3b85875a
JB		 2188 rtnl_lock();
2189
463d0183 2190 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3b85875a
JB		 2191 if (!netdev) {
2192 err = -ENODEV;
2193 goto out_rtnl;
2194 }
bba95fef 2195
463d0183 2196 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
bba95fef
JB		 2197 if (IS_ERR(dev)) {
2198 err = PTR_ERR(dev);
3b85875a 2199 goto out_rtnl;
bba95fef
JB		 2200 }
2201
2202 if (!dev->ops->dump_mpath) {
eec60b03 2203 err = -EOPNOTSUPP;
bba95fef
JB		 2204 goto out_err;
2205 }
2206
eec60b03
JM		 2207 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2208 err = -EOPNOTSUPP;
0448b5fc 2209 goto out_err;
eec60b03
JM		 2210 }
2211
bba95fef
JB		 2212 while (1) {
2213 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
2214 dst, next_hop, &pinfo);
2215 if (err == -ENOENT)
2ec600d6 2216 break;
bba95fef 2217 if (err)
3b85875a 2218 goto out_err;
2ec600d6 2219
bba95fef
JB		 2220 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
2221 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2222 netdev, dst, next_hop,
2223 &pinfo) < 0)
2224 goto out;
2ec600d6 2225
bba95fef 2226 path_idx++;
2ec600d6 2227 }
2ec600d6 2228
2ec600d6 2229
bba95fef
JB		 2230 out:
2231 cb->args[1] = path_idx;
2232 err = skb->len;
bba95fef 2233 out_err:
4d0c8aea 2234 cfg80211_unlock_rdev(dev);
3b85875a
JB		 2235 out_rtnl:
2236 rtnl_unlock();
bba95fef
JB		 2237
2238 return err;
2ec600d6
LCC		 2239}
2240
2241static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
2242{
79c97e97 2243 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2244 int err;
2245 struct net_device *dev;
2246 struct mpath_info pinfo;
2247 struct sk_buff *msg;
2248 u8 *dst = NULL;
2249 u8 next_hop[ETH_ALEN];
2250
2251 memset(&pinfo, 0, sizeof(pinfo));
2252
2253 if (!info->attrs[NL80211_ATTR_MAC])
2254 return -EINVAL;
2255
2256 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2257
3b85875a
JB		 2258 rtnl_lock();
2259
463d0183 2260 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2261 if (err)
3b85875a 2262 goto out_rtnl;
2ec600d6 2263
79c97e97 2264 if (!rdev->ops->get_mpath) {
2ec600d6
LCC		 2265 err = -EOPNOTSUPP;
2266 goto out;
2267 }
2268
eec60b03
JM		 2269 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2270 err = -EOPNOTSUPP;
2271 goto out;
2272 }
2273
79c97e97 2274 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6
LCC		 2275 if (err)
2276 goto out;
2277
fd2120ca 2278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6
LCC		 2279 if (!msg)
2280 goto out;
2281
2282 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
2283 dev, dst, next_hop, &pinfo) < 0)
2284 goto out_free;
2285
134e6375 2286 err = genlmsg_reply(msg, info);
2ec600d6
LCC		 2287 goto out;
2288
2289 out_free:
2290 nlmsg_free(msg);
2ec600d6 2291 out:
79c97e97 2292 cfg80211_unlock_rdev(rdev);
2ec600d6 2293 dev_put(dev);
3b85875a
JB		 2294 out_rtnl:
2295 rtnl_unlock();
2296
2ec600d6
LCC		 2297 return err;
2298}
2299
2300static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2301{
79c97e97 2302 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2303 int err;
2304 struct net_device *dev;
2305 u8 *dst = NULL;
2306 u8 *next_hop = NULL;
2307
2308 if (!info->attrs[NL80211_ATTR_MAC])
2309 return -EINVAL;
2310
2311 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2312 return -EINVAL;
2313
2314 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2315 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2316
3b85875a
JB		 2317 rtnl_lock();
2318
463d0183 2319 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2320 if (err)
3b85875a 2321 goto out_rtnl;
2ec600d6 2322
79c97e97 2323 if (!rdev->ops->change_mpath) {
2ec600d6
LCC		 2324 err = -EOPNOTSUPP;
2325 goto out;
2326 }
2327
eec60b03
JM		 2328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2329 err = -EOPNOTSUPP;
2330 goto out;
2331 }
2332
35a8efe1
JM		 2333 if (!netif_running(dev)) {
2334 err = -ENETDOWN;
2335 goto out;
2336 }
2337
79c97e97 2338 err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2339
2340 out:
79c97e97 2341 cfg80211_unlock_rdev(rdev);
2ec600d6 2342 dev_put(dev);
3b85875a
JB		 2343 out_rtnl:
2344 rtnl_unlock();
2345
2ec600d6
LCC		 2346 return err;
2347}
2348static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2349{
79c97e97 2350 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2351 int err;
2352 struct net_device *dev;
2353 u8 *dst = NULL;
2354 u8 *next_hop = NULL;
2355
2356 if (!info->attrs[NL80211_ATTR_MAC])
2357 return -EINVAL;
2358
2359 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2360 return -EINVAL;
2361
2362 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2363 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2364
3b85875a
JB		 2365 rtnl_lock();
2366
463d0183 2367 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2368 if (err)
3b85875a 2369 goto out_rtnl;
2ec600d6 2370
79c97e97 2371 if (!rdev->ops->add_mpath) {
2ec600d6
LCC		 2372 err = -EOPNOTSUPP;
2373 goto out;
2374 }
2375
eec60b03
JM		 2376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2377 err = -EOPNOTSUPP;
2378 goto out;
2379 }
2380
35a8efe1
JM		 2381 if (!netif_running(dev)) {
2382 err = -ENETDOWN;
2383 goto out;
2384 }
2385
79c97e97 2386 err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2387
2388 out:
79c97e97 2389 cfg80211_unlock_rdev(rdev);
2ec600d6 2390 dev_put(dev);
3b85875a
JB		 2391 out_rtnl:
2392 rtnl_unlock();
2393
2ec600d6
LCC		 2394 return err;
2395}
2396
2397static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2398{
79c97e97 2399 struct cfg80211_registered_device *rdev;
2ec600d6
LCC		 2400 int err;
2401 struct net_device *dev;
2402 u8 *dst = NULL;
2403
2404 if (info->attrs[NL80211_ATTR_MAC])
2405 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2406
3b85875a
JB		 2407 rtnl_lock();
2408
463d0183 2409 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2ec600d6 2410 if (err)
3b85875a 2411 goto out_rtnl;
2ec600d6 2412
79c97e97 2413 if (!rdev->ops->del_mpath) {
2ec600d6
LCC		 2414 err = -EOPNOTSUPP;
2415 goto out;
2416 }
2417
79c97e97 2418 err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
2ec600d6
LCC		 2419
2420 out:
79c97e97 2421 cfg80211_unlock_rdev(rdev);
2ec600d6 2422 dev_put(dev);
3b85875a
JB		 2423 out_rtnl:
2424 rtnl_unlock();
2425
2ec600d6
LCC		 2426 return err;
2427}
2428
9f1ba906
JM		 2429static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2430{
79c97e97 2431 struct cfg80211_registered_device *rdev;
9f1ba906
JM		 2432 int err;
2433 struct net_device *dev;
2434 struct bss_parameters params;
2435
2436 memset(&params, 0, sizeof(params));
2437 /* default to not changing parameters */
2438 params.use_cts_prot = -1;
2439 params.use_short_preamble = -1;
2440 params.use_short_slot_time = -1;
2441
2442 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2443 params.use_cts_prot =
2444 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2445 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2446 params.use_short_preamble =
2447 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2448 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2449 params.use_short_slot_time =
2450 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2451 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2452 params.basic_rates =
2453 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2454 params.basic_rates_len =
2455 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2456 }
9f1ba906 2457
3b85875a
JB		 2458 rtnl_lock();
2459
463d0183 2460 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
9f1ba906 2461 if (err)
3b85875a 2462 goto out_rtnl;
9f1ba906 2463
79c97e97 2464 if (!rdev->ops->change_bss) {
9f1ba906
JM		 2465 err = -EOPNOTSUPP;
2466 goto out;
2467 }
2468
eec60b03
JM		 2469 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2470 err = -EOPNOTSUPP;
2471 goto out;
2472 }
2473
79c97e97 2474 err = rdev->ops->change_bss(&rdev->wiphy, dev, &params);
9f1ba906
JM		 2475
2476 out:
79c97e97 2477 cfg80211_unlock_rdev(rdev);
9f1ba906 2478 dev_put(dev);
3b85875a
JB		 2479 out_rtnl:
2480 rtnl_unlock();
2481
9f1ba906
JM		 2482 return err;
2483}
2484
b2e1b302
LR		 2485static const struct nla_policy
2486 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2487 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2488 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2489 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2490 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2491 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2492 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2493};
2494
2495static int parse_reg_rule(struct nlattr *tb[],
2496 struct ieee80211_reg_rule *reg_rule)
2497{
2498 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2499 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2500
2501 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2502 return -EINVAL;
2503 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2504 return -EINVAL;
2505 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2506 return -EINVAL;
2507 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2508 return -EINVAL;
2509 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2510 return -EINVAL;
2511
2512 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2513
2514 freq_range->start_freq_khz =
2515 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2516 freq_range->end_freq_khz =
2517 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2518 freq_range->max_bandwidth_khz =
2519 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2520
2521 power_rule->max_eirp =
2522 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2523
2524 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2525 power_rule->max_antenna_gain =
2526 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2527
2528 return 0;
2529}
2530
2531static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2532{
2533 int r;
2534 char *data = NULL;
2535
80778f18
LR		 2536 /*
2537 * You should only get this when cfg80211 hasn't yet initialized
2538 * completely when built-in to the kernel right between the time
2539 * window between nl80211_init() and regulatory_init(), if that is
2540 * even possible.
2541 */
2542 mutex_lock(&cfg80211_mutex);
2543 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2544 mutex_unlock(&cfg80211_mutex);
2545 return -EINPROGRESS;
80778f18 2546 }
fe33eb39 2547 mutex_unlock(&cfg80211_mutex);
80778f18 2548
fe33eb39
LR		 2549 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2550 return -EINVAL;
b2e1b302
LR		 2551
2552 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2553
fe33eb39
LR		 2554 r = regulatory_hint_user(data);
2555
b2e1b302
LR		 2556 return r;
2557}
2558
93da9cc1 2559static int nl80211_get_mesh_params(struct sk_buff *skb,
2560 struct genl_info *info)
2561{
79c97e97 2562 struct cfg80211_registered_device *rdev;
93da9cc1 2563 struct mesh_config cur_params;
2564 int err;
2565 struct net_device *dev;
2566 void *hdr;
2567 struct nlattr *pinfoattr;
2568 struct sk_buff *msg;
2569
3b85875a
JB		 2570 rtnl_lock();
2571
93da9cc1 2572 /* Look up our device */
463d0183 2573 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
93da9cc1 2574 if (err)
3b85875a 2575 goto out_rtnl;
93da9cc1 2576
79c97e97 2577 if (!rdev->ops->get_mesh_params) {
f3f92586
JM		 2578 err = -EOPNOTSUPP;
2579 goto out;
2580 }
2581
93da9cc1 2582 /* Get the mesh params */
79c97e97 2583 err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params);
93da9cc1 2584 if (err)
2585 goto out;
2586
2587 /* Draw up a netlink message to send back */
fd2120ca 2588 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
93da9cc1 2589 if (!msg) {
2590 err = -ENOBUFS;
2591 goto out;
2592 }
2593 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2594 NL80211_CMD_GET_MESH_PARAMS);
2595 if (!hdr)
2596 goto nla_put_failure;
2597 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2598 if (!pinfoattr)
2599 goto nla_put_failure;
2600 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2601 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2602 cur_params.dot11MeshRetryTimeout);
2603 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2604 cur_params.dot11MeshConfirmTimeout);
2605 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2606 cur_params.dot11MeshHoldingTimeout);
2607 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2608 cur_params.dot11MeshMaxPeerLinks);
2609 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2610 cur_params.dot11MeshMaxRetries);
2611 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2612 cur_params.dot11MeshTTL);
2613 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2614 cur_params.auto_open_plinks);
2615 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2616 cur_params.dot11MeshHWMPmaxPREQretries);
2617 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2618 cur_params.path_refresh_time);
2619 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2620 cur_params.min_discovery_timeout);
2621 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2622 cur_params.dot11MeshHWMPactivePathTimeout);
2623 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2624 cur_params.dot11MeshHWMPpreqMinInterval);
2625 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2626 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
63c5723b
RP		 2627 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
2628 cur_params.dot11MeshHWMPRootMode);
93da9cc1 2629 nla_nest_end(msg, pinfoattr);
2630 genlmsg_end(msg, hdr);
134e6375 2631 err = genlmsg_reply(msg, info);
93da9cc1 2632 goto out;
2633
3b85875a 2634 nla_put_failure:
93da9cc1 2635 genlmsg_cancel(msg, hdr);
2636 err = -EMSGSIZE;
3b85875a 2637 out:
93da9cc1 2638 /* Cleanup */
79c97e97 2639 cfg80211_unlock_rdev(rdev);
93da9cc1 2640 dev_put(dev);
3b85875a
JB		 2641 out_rtnl:
2642 rtnl_unlock();
2643
93da9cc1 2644 return err;
2645}
2646
2647#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2648do {\
2649 if (table[attr_num]) {\
2650 cfg.param = nla_fn(table[attr_num]); \
2651 mask |= (1 << (attr_num - 1)); \
2652 } \
2653} while (0);\
2654
2655static struct nla_policy
2656nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2657 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2658 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2659 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2660 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2661 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2662 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2663 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2664
2665 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2666 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2667 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2668 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2669 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2670 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2671};
2672
2673static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2674{
2675 int err;
2676 u32 mask;
79c97e97 2677 struct cfg80211_registered_device *rdev;
93da9cc1 2678 struct net_device *dev;
2679 struct mesh_config cfg;
2680 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2681 struct nlattr *parent_attr;
2682
2683 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2684 if (!parent_attr)
2685 return -EINVAL;
2686 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2687 parent_attr, nl80211_meshconf_params_policy))
2688 return -EINVAL;
2689
3b85875a
JB		 2690 rtnl_lock();
2691
463d0183 2692 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
93da9cc1 2693 if (err)
3b85875a 2694 goto out_rtnl;
93da9cc1 2695
79c97e97 2696 if (!rdev->ops->set_mesh_params) {
f3f92586
JM		 2697 err = -EOPNOTSUPP;
2698 goto out;
2699 }
2700
93da9cc1 2701 /* This makes sure that there aren't more than 32 mesh config
2702 * parameters (otherwise our bitfield scheme would not work.) */
2703 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2704
2705 /* Fill in the params struct */
2706 mask = 0;
2707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2708 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2709 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2710 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2712 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2713 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2714 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2715 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2716 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2718 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2719 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2720 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2721 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2722 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2723 nla_get_u8);
2724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2725 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2726 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2727 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2728 nla_get_u16);
2729 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2730 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2731 nla_get_u32);
2732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2733 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2734 nla_get_u16);
2735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2736 dot11MeshHWMPnetDiameterTraversalTime,
2737 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2738 nla_get_u16);
63c5723b
RP		 2739 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2740 dot11MeshHWMPRootMode, mask,
2741 NL80211_MESHCONF_HWMP_ROOTMODE,
2742 nla_get_u8);
93da9cc1 2743
2744 /* Apply changes */
79c97e97 2745 err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask);
93da9cc1 2746
f3f92586 2747 out:
93da9cc1 2748 /* cleanup */
79c97e97 2749 cfg80211_unlock_rdev(rdev);
93da9cc1 2750 dev_put(dev);
3b85875a
JB		 2751 out_rtnl:
2752 rtnl_unlock();
2753
93da9cc1 2754 return err;
2755}
2756
2757#undef FILL_IN_MESH_PARAM_IF_SET
2758
f130347c
LR		 2759static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2760{
2761 struct sk_buff *msg;
2762 void *hdr = NULL;
2763 struct nlattr *nl_reg_rules;
2764 unsigned int i;
2765 int err = -EINVAL;
2766
a1794390 2767 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2768
2769 if (!cfg80211_regdomain)
2770 goto out;
2771
fd2120ca 2772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2773 if (!msg) {
2774 err = -ENOBUFS;
2775 goto out;
2776 }
2777
2778 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2779 NL80211_CMD_GET_REG);
2780 if (!hdr)
2781 goto nla_put_failure;
2782
2783 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2784 cfg80211_regdomain->alpha2);
2785
2786 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2787 if (!nl_reg_rules)
2788 goto nla_put_failure;
2789
2790 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2791 struct nlattr *nl_reg_rule;
2792 const struct ieee80211_reg_rule *reg_rule;
2793 const struct ieee80211_freq_range *freq_range;
2794 const struct ieee80211_power_rule *power_rule;
2795
2796 reg_rule = &cfg80211_regdomain->reg_rules[i];
2797 freq_range = &reg_rule->freq_range;
2798 power_rule = &reg_rule->power_rule;
2799
2800 nl_reg_rule = nla_nest_start(msg, i);
2801 if (!nl_reg_rule)
2802 goto nla_put_failure;
2803
2804 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2805 reg_rule->flags);
2806 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2807 freq_range->start_freq_khz);
2808 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2809 freq_range->end_freq_khz);
2810 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2811 freq_range->max_bandwidth_khz);
2812 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2813 power_rule->max_antenna_gain);
2814 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2815 power_rule->max_eirp);
2816
2817 nla_nest_end(msg, nl_reg_rule);
2818 }
2819
2820 nla_nest_end(msg, nl_reg_rules);
2821
2822 genlmsg_end(msg, hdr);
134e6375 2823 err = genlmsg_reply(msg, info);
f130347c
LR		 2824 goto out;
2825
2826nla_put_failure:
2827 genlmsg_cancel(msg, hdr);
2828 err = -EMSGSIZE;
2829out:
a1794390 2830 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2831 return err;
2832}
2833
b2e1b302
LR		 2834static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2835{
2836 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2837 struct nlattr *nl_reg_rule;
2838 char *alpha2 = NULL;
2839 int rem_reg_rules = 0, r = 0;
2840 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2841 struct ieee80211_regdomain *rd = NULL;
2842
2843 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2844 return -EINVAL;
2845
2846 if (!info->attrs[NL80211_ATTR_REG_RULES])
2847 return -EINVAL;
2848
2849 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2850
2851 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2852 rem_reg_rules) {
2853 num_rules++;
2854 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2855 return -EINVAL;
b2e1b302
LR		 2856 }
2857
61405e97
LR		 2858 mutex_lock(&cfg80211_mutex);
2859
d0e18f83
LR		 2860 if (!reg_is_valid_request(alpha2)) {
2861 r = -EINVAL;
2862 goto bad_reg;
2863 }
b2e1b302
LR		 2864
2865 size_of_regd = sizeof(struct ieee80211_regdomain) +
2866 (num_rules * sizeof(struct ieee80211_reg_rule));
2867
2868 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2869 if (!rd) {
2870 r = -ENOMEM;
2871 goto bad_reg;
2872 }
b2e1b302
LR		 2873
2874 rd->n_reg_rules = num_rules;
2875 rd->alpha2[0] = alpha2[0];
2876 rd->alpha2[1] = alpha2[1];
2877
2878 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2879 rem_reg_rules) {
2880 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2881 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2882 reg_rule_policy);
2883 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2884 if (r)
2885 goto bad_reg;
2886
2887 rule_idx++;
2888
d0e18f83
LR		 2889 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2890 r = -EINVAL;
b2e1b302 2891 goto bad_reg;
d0e18f83 2892 }
b2e1b302
LR		 2893 }
2894
2895 BUG_ON(rule_idx != num_rules);
2896
b2e1b302 2897 r = set_regdom(rd);
61405e97 2898
a1794390 2899 mutex_unlock(&cfg80211_mutex);
d0e18f83 2900
b2e1b302
LR		 2901 return r;
2902
d2372b31 2903 bad_reg:
61405e97 2904 mutex_unlock(&cfg80211_mutex);
b2e1b302 2905 kfree(rd);
d0e18f83 2906 return r;
b2e1b302
LR		 2907}
2908
83f5e2cf
JB		 2909static int validate_scan_freqs(struct nlattr *freqs)
2910{
2911 struct nlattr *attr1, *attr2;
2912 int n_channels = 0, tmp1, tmp2;
2913
2914 nla_for_each_nested(attr1, freqs, tmp1) {
2915 n_channels++;
2916 /*
2917 * Some hardware has a limited channel list for
2918 * scanning, and it is pretty much nonsensical
2919 * to scan for a channel twice, so disallow that
2920 * and don't require drivers to check that the
2921 * channel list they get isn't longer than what
2922 * they can scan, as long as they can scan all
2923 * the channels they registered at once.
2924 */
2925 nla_for_each_nested(attr2, freqs, tmp2)
2926 if (attr1 != attr2 &&
2927 nla_get_u32(attr1) == nla_get_u32(attr2))
2928 return 0;
2929 }
2930
2931 return n_channels;
2932}
2933
2a519311
JB		 2934static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2935{
79c97e97 2936 struct cfg80211_registered_device *rdev;
2a519311
JB		 2937 struct net_device *dev;
2938 struct cfg80211_scan_request *request;
2939 struct cfg80211_ssid *ssid;
2940 struct ieee80211_channel *channel;
2941 struct nlattr *attr;
2942 struct wiphy *wiphy;
83f5e2cf 2943 int err, tmp, n_ssids = 0, n_channels, i;
2a519311 2944 enum ieee80211_band band;
70692ad2 2945 size_t ie_len;
2a519311 2946
f4a11bb0
JB		 2947 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2948 return -EINVAL;
2949
3b85875a
JB		 2950 rtnl_lock();
2951
463d0183 2952 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
2a519311 2953 if (err)
3b85875a 2954 goto out_rtnl;
2a519311 2955
79c97e97 2956 wiphy = &rdev->wiphy;
2a519311 2957
79c97e97 2958 if (!rdev->ops->scan) {
2a519311
JB		 2959 err = -EOPNOTSUPP;
2960 goto out;
2961 }
2962
35a8efe1
JM		 2963 if (!netif_running(dev)) {
2964 err = -ENETDOWN;
2965 goto out;
2966 }
2967
79c97e97 2968 if (rdev->scan_req) {
2a519311 2969 err = -EBUSY;
3b85875a 2970 goto out;
2a519311
JB		 2971 }
2972
2973 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
83f5e2cf
JB		 2974 n_channels = validate_scan_freqs(
2975 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
2a519311
JB		 2976 if (!n_channels) {
2977 err = -EINVAL;
3b85875a 2978 goto out;
2a519311
JB		 2979 }
2980 } else {
83f5e2cf
JB		 2981 n_channels = 0;
2982
2a519311
JB		 2983 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2984 if (wiphy->bands[band])
2985 n_channels += wiphy->bands[band]->n_channels;
2986 }
2987
2988 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2989 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2990 n_ssids++;
2991
2992 if (n_ssids > wiphy->max_scan_ssids) {
2993 err = -EINVAL;
3b85875a 2994 goto out;
2a519311
JB		 2995 }
2996
70692ad2
JM		 2997 if (info->attrs[NL80211_ATTR_IE])
2998 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2999 else
3000 ie_len = 0;
3001
18a83659
JB		 3002 if (ie_len > wiphy->max_scan_ie_len) {
3003 err = -EINVAL;
3004 goto out;
3005 }
3006
2a519311
JB		 3007 request = kzalloc(sizeof(*request)
3008 + sizeof(*ssid) * n_ssids
70692ad2
JM		 3009 + sizeof(channel) * n_channels
3010 + ie_len, GFP_KERNEL);
2a519311
JB		 3011 if (!request) {
3012 err = -ENOMEM;
3b85875a 3013 goto out;
2a519311
JB		 3014 }
3015
2a519311 3016 if (n_ssids)
5ba63533 3017 request->ssids = (void *)&request->channels[n_channels];
2a519311 3018 request->n_ssids = n_ssids;
70692ad2
JM		 3019 if (ie_len) {
3020 if (request->ssids)
3021 request->ie = (void *)(request->ssids + n_ssids);
3022 else
3023 request->ie = (void *)(request->channels + n_channels);
3024 }
2a519311 3025
584991dc 3026 i = 0;
2a519311
JB		 3027 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
3028 /* user specified, bail out if channel not found */
2a519311 3029 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
584991dc
JB		 3030 struct ieee80211_channel *chan;
3031
3032 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
3033
3034 if (!chan) {
2a519311
JB		 3035 err = -EINVAL;
3036 goto out_free;
3037 }
584991dc
JB		 3038
3039 /* ignore disabled channels */
3040 if (chan->flags & IEEE80211_CHAN_DISABLED)
3041 continue;
3042
3043 request->channels[i] = chan;
2a519311
JB		 3044 i++;
3045 }
3046 } else {
3047 /* all channels */
2a519311
JB		 3048 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
3049 int j;
3050 if (!wiphy->bands[band])
3051 continue;
3052 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
584991dc
JB		 3053 struct ieee80211_channel *chan;
3054
3055 chan = &wiphy->bands[band]->channels[j];
3056
3057 if (chan->flags & IEEE80211_CHAN_DISABLED)
3058 continue;
3059
3060 request->channels[i] = chan;
2a519311
JB		 3061 i++;
3062 }
3063 }
3064 }
3065
584991dc
JB		 3066 if (!i) {
3067 err = -EINVAL;
3068 goto out_free;
3069 }
3070
3071 request->n_channels = i;
3072
2a519311
JB		 3073 i = 0;
3074 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
3075 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
3076 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
3077 err = -EINVAL;
3078 goto out_free;
3079 }
3080 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
3081 request->ssids[i].ssid_len = nla_len(attr);
3082 i++;
3083 }
3084 }
3085
70692ad2
JM		 3086 if (info->attrs[NL80211_ATTR_IE]) {
3087 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 3088 memcpy((void *)request->ie,
3089 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 3090 request->ie_len);
3091 }
3092
463d0183 3093 request->dev = dev;
79c97e97 3094 request->wiphy = &rdev->wiphy;
2a519311 3095
79c97e97
JB		 3096 rdev->scan_req = request;
3097 err = rdev->ops->scan(&rdev->wiphy, dev, request);
2a519311 3098
463d0183 3099 if (!err) {
79c97e97 3100 nl80211_send_scan_start(rdev, dev);
463d0183
JB		 3101 dev_hold(dev);
3102 }
a538e2d5 3103
2a519311
JB		 3104 out_free:
3105 if (err) {
79c97e97 3106 rdev->scan_req = NULL;
2a519311
JB		 3107 kfree(request);
3108 }
2a519311 3109 out:
79c97e97 3110 cfg80211_unlock_rdev(rdev);
2a519311 3111 dev_put(dev);
3b85875a
JB		 3112 out_rtnl:
3113 rtnl_unlock();
3114
2a519311
JB		 3115 return err;
3116}
3117
3118static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
3119 struct cfg80211_registered_device *rdev,
48ab905d
JB		 3120 struct wireless_dev *wdev,
3121 struct cfg80211_internal_bss *intbss)
2a519311 3122{
48ab905d 3123 struct cfg80211_bss *res = &intbss->pub;
2a519311
JB		 3124 void *hdr;
3125 struct nlattr *bss;
48ab905d
JB		 3126 int i;
3127
3128 ASSERT_WDEV_LOCK(wdev);
2a519311
JB		 3129
3130 hdr = nl80211hdr_put(msg, pid, seq, flags,
3131 NL80211_CMD_NEW_SCAN_RESULTS);
3132 if (!hdr)
3133 return -1;
3134
f5ea9120 3135 NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation);
48ab905d 3136 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex);
2a519311
JB		 3137
3138 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
3139 if (!bss)
3140 goto nla_put_failure;
3141 if (!is_zero_ether_addr(res->bssid))
3142 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
3143 if (res->information_elements && res->len_information_elements)
3144 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
3145 res->len_information_elements,
3146 res->information_elements);
34a6eddb
JM		 3147 if (res->beacon_ies && res->len_beacon_ies &&
3148 res->beacon_ies != res->information_elements)
3149 NLA_PUT(msg, NL80211_BSS_BEACON_IES,
3150 res->len_beacon_ies, res->beacon_ies);
2a519311
JB		 3151 if (res->tsf)
3152 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
3153 if (res->beacon_interval)
3154 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
3155 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
3156 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
7c89606e
HS		 3157 NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO,
3158 jiffies_to_msecs(jiffies - intbss->ts));
2a519311 3159
77965c97 3160 switch (rdev->wiphy.signal_type) {
2a519311
JB		 3161 case CFG80211_SIGNAL_TYPE_MBM:
3162 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
3163 break;
3164 case CFG80211_SIGNAL_TYPE_UNSPEC:
3165 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
3166 break;
3167 default:
3168 break;
3169 }
3170
48ab905d
JB		 3171 switch (wdev->iftype) {
3172 case NL80211_IFTYPE_STATION:
3173 if (intbss == wdev->current_bss)
3174 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3175 NL80211_BSS_STATUS_ASSOCIATED);
3176 else for (i = 0; i < MAX_AUTH_BSSES; i++) {
3177 if (intbss != wdev->auth_bsses[i])
3178 continue;
3179 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3180 NL80211_BSS_STATUS_AUTHENTICATED);
3181 break;
3182 }
3183 break;
3184 case NL80211_IFTYPE_ADHOC:
3185 if (intbss == wdev->current_bss)
3186 NLA_PUT_U32(msg, NL80211_BSS_STATUS,
3187 NL80211_BSS_STATUS_IBSS_JOINED);
3188 break;
3189 default:
3190 break;
3191 }
3192
2a519311
JB		 3193 nla_nest_end(msg, bss);
3194
3195 return genlmsg_end(msg, hdr);
3196
3197 nla_put_failure:
3198 genlmsg_cancel(msg, hdr);
3199 return -EMSGSIZE;
3200}
3201
3202static int nl80211_dump_scan(struct sk_buff *skb,
3203 struct netlink_callback *cb)
3204{
48ab905d
JB		 3205 struct cfg80211_registered_device *rdev;
3206 struct net_device *dev;
2a519311 3207 struct cfg80211_internal_bss *scan;
48ab905d 3208 struct wireless_dev *wdev;
2a519311
JB		 3209 int ifidx = cb->args[0];
3210 int start = cb->args[1], idx = 0;
3211 int err;
3212
a043897a
HS		 3213 if (!ifidx)
3214 ifidx = nl80211_get_ifidx(cb);
3215 if (ifidx < 0)
3216 return ifidx;
3217 cb->args[0] = ifidx;
2a519311 3218
463d0183 3219 dev = dev_get_by_index(sock_net(skb->sk), ifidx);
48ab905d 3220 if (!dev)
2a519311
JB		 3221 return -ENODEV;
3222
463d0183 3223 rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
48ab905d
JB		 3224 if (IS_ERR(rdev)) {
3225 err = PTR_ERR(rdev);
2a519311
JB		 3226 goto out_put_netdev;
3227 }
3228
48ab905d 3229 wdev = dev->ieee80211_ptr;
2a519311 3230
48ab905d
JB		 3231 wdev_lock(wdev);
3232 spin_lock_bh(&rdev->bss_lock);
3233 cfg80211_bss_expire(rdev);
3234
3235 list_for_each_entry(scan, &rdev->bss_list, list) {
2a519311
JB		 3236 if (++idx <= start)
3237 continue;
3238 if (nl80211_send_bss(skb,
3239 NETLINK_CB(cb->skb).pid,
3240 cb->nlh->nlmsg_seq, NLM_F_MULTI,
48ab905d 3241 rdev, wdev, scan) < 0) {
2a519311
JB		 3242 idx--;
3243 goto out;
3244 }
3245 }
3246
3247 out:
48ab905d
JB		 3248 spin_unlock_bh(&rdev->bss_lock);
3249 wdev_unlock(wdev);
2a519311
JB		 3250
3251 cb->args[1] = idx;
3252 err = skb->len;
48ab905d 3253 cfg80211_unlock_rdev(rdev);
2a519311 3254 out_put_netdev:
48ab905d 3255 dev_put(dev);
2a519311
JB		 3256
3257 return err;
3258}
3259
61fa713c
HS		 3260static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
3261 int flags, struct net_device *dev,
3262 struct survey_info *survey)
3263{
3264 void *hdr;
3265 struct nlattr *infoattr;
3266
3267 /* Survey without a channel doesn't make sense */
3268 if (!survey->channel)
3269 return -EINVAL;
3270
3271 hdr = nl80211hdr_put(msg, pid, seq, flags,
3272 NL80211_CMD_NEW_SURVEY_RESULTS);
3273 if (!hdr)
3274 return -ENOMEM;
3275
3276 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
3277
3278 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
3279 if (!infoattr)
3280 goto nla_put_failure;
3281
3282 NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY,
3283 survey->channel->center_freq);
3284 if (survey->filled & SURVEY_INFO_NOISE_DBM)
3285 NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE,
3286 survey->noise);
3287
3288 nla_nest_end(msg, infoattr);
3289
3290 return genlmsg_end(msg, hdr);
3291
3292 nla_put_failure:
3293 genlmsg_cancel(msg, hdr);
3294 return -EMSGSIZE;
3295}
3296
3297static int nl80211_dump_survey(struct sk_buff *skb,
3298 struct netlink_callback *cb)
3299{
3300 struct survey_info survey;
3301 struct cfg80211_registered_device *dev;
3302 struct net_device *netdev;
3303 int ifidx = cb->args[0];
3304 int survey_idx = cb->args[1];
3305 int res;
3306
3307 if (!ifidx)
3308 ifidx = nl80211_get_ifidx(cb);
3309 if (ifidx < 0)
3310 return ifidx;
3311 cb->args[0] = ifidx;
3312
3313 rtnl_lock();
3314
3315 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
3316 if (!netdev) {
3317 res = -ENODEV;
3318 goto out_rtnl;
3319 }
3320
3321 dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
3322 if (IS_ERR(dev)) {
3323 res = PTR_ERR(dev);
3324 goto out_rtnl;
3325 }
3326
3327 if (!dev->ops->dump_survey) {
3328 res = -EOPNOTSUPP;
3329 goto out_err;
3330 }
3331
3332 while (1) {
3333 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
3334 &survey);
3335 if (res == -ENOENT)
3336 break;
3337 if (res)
3338 goto out_err;
3339
3340 if (nl80211_send_survey(skb,
3341 NETLINK_CB(cb->skb).pid,
3342 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3343 netdev,
3344 &survey) < 0)
3345 goto out;
3346 survey_idx++;
3347 }
3348
3349 out:
3350 cb->args[1] = survey_idx;
3351 res = skb->len;
3352 out_err:
3353 cfg80211_unlock_rdev(dev);
3354 out_rtnl:
3355 rtnl_unlock();
3356
3357 return res;
3358}
3359
255e737e
JM		 3360static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
3361{
b23aa676
SO		 3362 return auth_type <= NL80211_AUTHTYPE_MAX;
3363}
3364
3365static bool nl80211_valid_wpa_versions(u32 wpa_versions)
3366{
3367 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
3368 NL80211_WPA_VERSION_2));
3369}
3370
3371static bool nl80211_valid_akm_suite(u32 akm)
3372{
3373 return akm == WLAN_AKM_SUITE_8021X ||
3374 akm == WLAN_AKM_SUITE_PSK;
3375}
3376
3377static bool nl80211_valid_cipher_suite(u32 cipher)
3378{
3379 return cipher == WLAN_CIPHER_SUITE_WEP40 ||
3380 cipher == WLAN_CIPHER_SUITE_WEP104 ||
3381 cipher == WLAN_CIPHER_SUITE_TKIP ||
3382 cipher == WLAN_CIPHER_SUITE_CCMP ||
3383 cipher == WLAN_CIPHER_SUITE_AES_CMAC;
255e737e
JM		 3384}
3385
b23aa676 3386
636a5d36
JM		 3387static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
3388{
79c97e97 3389 struct cfg80211_registered_device *rdev;
636a5d36 3390 struct net_device *dev;
19957bb3
JB		 3391 struct ieee80211_channel *chan;
3392 const u8 *bssid, *ssid, *ie = NULL;
3393 int err, ssid_len, ie_len = 0;
3394 enum nl80211_auth_type auth_type;
fffd0934 3395 struct key_parse key;
636a5d36 3396
f4a11bb0
JB		 3397 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3398 return -EINVAL;
3399
3400 if (!info->attrs[NL80211_ATTR_MAC])
3401 return -EINVAL;
3402
1778092e
JM		 3403 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
3404 return -EINVAL;
3405
19957bb3
JB		 3406 if (!info->attrs[NL80211_ATTR_SSID])
3407 return -EINVAL;
3408
3409 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
3410 return -EINVAL;
3411
fffd0934
JB		 3412 err = nl80211_parse_key(info, &key);
3413 if (err)
3414 return err;
3415
3416 if (key.idx >= 0) {
3417 if (!key.p.key || !key.p.key_len)
3418 return -EINVAL;
3419 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
3420 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
3421 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
3422 key.p.key_len != WLAN_KEY_LEN_WEP104))
3423 return -EINVAL;
3424 if (key.idx > 4)
3425 return -EINVAL;
3426 } else {
3427 key.p.key_len = 0;
3428 key.p.key = NULL;
3429 }
3430
636a5d36
JM		 3431 rtnl_lock();
3432
463d0183 3433 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3434 if (err)
3435 goto unlock_rtnl;
3436
79c97e97 3437 if (!rdev->ops->auth) {
636a5d36
JM		 3438 err = -EOPNOTSUPP;
3439 goto out;
3440 }
3441
eec60b03
JM		 3442 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3443 err = -EOPNOTSUPP;
3444 goto out;
3445 }
3446
35a8efe1
JM		 3447 if (!netif_running(dev)) {
3448 err = -ENETDOWN;
3449 goto out;
3450 }
3451
19957bb3 3452 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
79c97e97 3453 chan = ieee80211_get_channel(&rdev->wiphy,
19957bb3
JB		 3454 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3455 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3456 err = -EINVAL;
3457 goto out;
636a5d36
JM		 3458 }
3459
19957bb3
JB		 3460 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3461 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3462
3463 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3464 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3465 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3466 }
3467
19957bb3
JB		 3468 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
3469 if (!nl80211_valid_auth_type(auth_type)) {
1778092e
JM		 3470 err = -EINVAL;
3471 goto out;
636a5d36
JM		 3472 }
3473
79c97e97 3474 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
fffd0934
JB		 3475 ssid, ssid_len, ie, ie_len,
3476 key.p.key, key.p.key_len, key.idx);
636a5d36
JM		 3477
3478out:
79c97e97 3479 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3480 dev_put(dev);
3481unlock_rtnl:
3482 rtnl_unlock();
3483 return err;
3484}
3485
b23aa676 3486static int nl80211_crypto_settings(struct genl_info *info,
3dc27d25
JB		 3487 struct cfg80211_crypto_settings *settings,
3488 int cipher_limit)
b23aa676 3489{
c0b2bbd8
JB		 3490 memset(settings, 0, sizeof(*settings));
3491
b23aa676
SO		 3492 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3493
3494 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
3495 void *data;
3496 int len, i;
3497
3498 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3499 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
3500 settings->n_ciphers_pairwise = len / sizeof(u32);
3501
3502 if (len % sizeof(u32))
3503 return -EINVAL;
3504
3dc27d25 3505 if (settings->n_ciphers_pairwise > cipher_limit)
b23aa676
SO		 3506 return -EINVAL;
3507
3508 memcpy(settings->ciphers_pairwise, data, len);
3509
3510 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3511 if (!nl80211_valid_cipher_suite(
3512 settings->ciphers_pairwise[i]))
3513 return -EINVAL;
3514 }
3515
3516 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
3517 settings->cipher_group =
3518 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
3519 if (!nl80211_valid_cipher_suite(settings->cipher_group))
3520 return -EINVAL;
3521 }
3522
3523 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
3524 settings->wpa_versions =
3525 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
3526 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
3527 return -EINVAL;
3528 }
3529
3530 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
3531 void *data;
3532 int len, i;
3533
3534 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
3535 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
3536 settings->n_akm_suites = len / sizeof(u32);
3537
3538 if (len % sizeof(u32))
3539 return -EINVAL;
3540
3541 memcpy(settings->akm_suites, data, len);
3542
3543 for (i = 0; i < settings->n_ciphers_pairwise; i++)
3544 if (!nl80211_valid_akm_suite(settings->akm_suites[i]))
3545 return -EINVAL;
3546 }
3547
3548 return 0;
3549}
3550
636a5d36
JM		 3551static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
3552{
19957bb3 3553 struct cfg80211_registered_device *rdev;
636a5d36 3554 struct net_device *dev;
27e310c9 3555 struct wireless_dev *wdev;
19957bb3 3556 struct cfg80211_crypto_settings crypto;
59bbb6f7 3557 struct ieee80211_channel *chan, *fixedchan;
3e5d7649 3558 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
19957bb3
JB		 3559 int err, ssid_len, ie_len = 0;
3560 bool use_mfp = false;
636a5d36 3561
f4a11bb0
JB		 3562 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3563 return -EINVAL;
3564
3565 if (!info->attrs[NL80211_ATTR_MAC] ||
19957bb3
JB		 3566 !info->attrs[NL80211_ATTR_SSID] ||
3567 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
f4a11bb0
JB		 3568 return -EINVAL;
3569
636a5d36
JM		 3570 rtnl_lock();
3571
463d0183 3572 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3573 if (err)
3574 goto unlock_rtnl;
3575
19957bb3 3576 if (!rdev->ops->assoc) {
636a5d36
JM		 3577 err = -EOPNOTSUPP;
3578 goto out;
3579 }
3580
eec60b03
JM		 3581 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3582 err = -EOPNOTSUPP;
3583 goto out;
3584 }
3585
35a8efe1
JM		 3586 if (!netif_running(dev)) {
3587 err = -ENETDOWN;
3588 goto out;
3589 }
3590
19957bb3 3591 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3592
19957bb3
JB		 3593 chan = ieee80211_get_channel(&rdev->wiphy,
3594 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3595 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) {
3596 err = -EINVAL;
3597 goto out;
636a5d36
JM		 3598 }
3599
59bbb6f7 3600 mutex_lock(&rdev->devlist_mtx);
27e310c9
JM		 3601 wdev = dev->ieee80211_ptr;
3602 fixedchan = rdev_fixed_channel(rdev, wdev);
59bbb6f7
JB		 3603 if (fixedchan && chan != fixedchan) {
3604 err = -EBUSY;
3605 mutex_unlock(&rdev->devlist_mtx);
3606 goto out;
3607 }
3608 mutex_unlock(&rdev->devlist_mtx);
3609
19957bb3
JB		 3610 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3611 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
636a5d36
JM		 3612
3613 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3614 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3615 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3616 }
3617
dc6382ce 3618 if (info->attrs[NL80211_ATTR_USE_MFP]) {
4f5dadce 3619 enum nl80211_mfp mfp =
dc6382ce 3620 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
4f5dadce 3621 if (mfp == NL80211_MFP_REQUIRED)
19957bb3 3622 use_mfp = true;
4f5dadce 3623 else if (mfp != NL80211_MFP_NO) {
dc6382ce
JM		 3624 err = -EINVAL;
3625 goto out;
3626 }
3627 }
3628
3e5d7649
JB		 3629 if (info->attrs[NL80211_ATTR_PREV_BSSID])
3630 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
3631
3dc27d25 3632 err = nl80211_crypto_settings(info, &crypto, 1);
b23aa676 3633 if (!err)
3e5d7649
JB		 3634 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
3635 ssid, ssid_len, ie, ie_len, use_mfp,
19957bb3 3636 &crypto);
636a5d36
JM		 3637
3638out:
4d0c8aea 3639 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3640 dev_put(dev);
3641unlock_rtnl:
3642 rtnl_unlock();
3643 return err;
3644}
3645
3646static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3647{
79c97e97 3648 struct cfg80211_registered_device *rdev;
636a5d36 3649 struct net_device *dev;
19957bb3
JB		 3650 const u8 *ie = NULL, *bssid;
3651 int err, ie_len = 0;
3652 u16 reason_code;
636a5d36 3653
f4a11bb0
JB		 3654 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3655 return -EINVAL;
3656
3657 if (!info->attrs[NL80211_ATTR_MAC])
3658 return -EINVAL;
3659
3660 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3661 return -EINVAL;
3662
636a5d36
JM		 3663 rtnl_lock();
3664
463d0183 3665 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3666 if (err)
3667 goto unlock_rtnl;
3668
79c97e97 3669 if (!rdev->ops->deauth) {
636a5d36
JM		 3670 err = -EOPNOTSUPP;
3671 goto out;
3672 }
3673
eec60b03
JM		 3674 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3675 err = -EOPNOTSUPP;
3676 goto out;
3677 }
3678
35a8efe1
JM		 3679 if (!netif_running(dev)) {
3680 err = -ENETDOWN;
3681 goto out;
3682 }
3683
19957bb3 3684 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3685
19957bb3
JB		 3686 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3687 if (reason_code == 0) {
f4a11bb0
JB		 3688 /* Reason Code 0 is reserved */
3689 err = -EINVAL;
3690 goto out;
255e737e 3691 }
636a5d36
JM		 3692
3693 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3694 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3695 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3696 }
3697
79c97e97 3698 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code);
636a5d36
JM		 3699
3700out:
79c97e97 3701 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3702 dev_put(dev);
3703unlock_rtnl:
3704 rtnl_unlock();
3705 return err;
3706}
3707
3708static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3709{
79c97e97 3710 struct cfg80211_registered_device *rdev;
636a5d36 3711 struct net_device *dev;
19957bb3
JB		 3712 const u8 *ie = NULL, *bssid;
3713 int err, ie_len = 0;
3714 u16 reason_code;
636a5d36 3715
f4a11bb0
JB		 3716 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3717 return -EINVAL;
3718
3719 if (!info->attrs[NL80211_ATTR_MAC])
3720 return -EINVAL;
3721
3722 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3723 return -EINVAL;
3724
636a5d36
JM		 3725 rtnl_lock();
3726
463d0183 3727 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
636a5d36
JM		 3728 if (err)
3729 goto unlock_rtnl;
3730
79c97e97 3731 if (!rdev->ops->disassoc) {
636a5d36
JM		 3732 err = -EOPNOTSUPP;
3733 goto out;
3734 }
3735
eec60b03
JM		 3736 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3737 err = -EOPNOTSUPP;
3738 goto out;
3739 }
3740
35a8efe1
JM		 3741 if (!netif_running(dev)) {
3742 err = -ENETDOWN;
3743 goto out;
3744 }
3745
19957bb3 3746 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
636a5d36 3747
19957bb3
JB		 3748 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3749 if (reason_code == 0) {
f4a11bb0
JB		 3750 /* Reason Code 0 is reserved */
3751 err = -EINVAL;
3752 goto out;
255e737e 3753 }
636a5d36
JM		 3754
3755 if (info->attrs[NL80211_ATTR_IE]) {
19957bb3
JB		 3756 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3757 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
636a5d36
JM		 3758 }
3759
79c97e97 3760 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code);
636a5d36
JM		 3761
3762out:
79c97e97 3763 cfg80211_unlock_rdev(rdev);
636a5d36
JM		 3764 dev_put(dev);
3765unlock_rtnl:
3766 rtnl_unlock();
3767 return err;
3768}
3769
04a773ad
JB		 3770static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3771{
79c97e97 3772 struct cfg80211_registered_device *rdev;
04a773ad
JB		 3773 struct net_device *dev;
3774 struct cfg80211_ibss_params ibss;
3775 struct wiphy *wiphy;
fffd0934 3776 struct cfg80211_cached_keys *connkeys = NULL;
04a773ad
JB		 3777 int err;
3778
8e30bc55
JB		 3779 memset(&ibss, 0, sizeof(ibss));
3780
04a773ad
JB		 3781 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3782 return -EINVAL;
3783
3784 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3785 !info->attrs[NL80211_ATTR_SSID] ||
3786 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3787 return -EINVAL;
3788
8e30bc55
JB		 3789 ibss.beacon_interval = 100;
3790
3791 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3792 ibss.beacon_interval =
3793 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3794 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3795 return -EINVAL;
3796 }
3797
04a773ad
JB		 3798 rtnl_lock();
3799
463d0183 3800 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
04a773ad
JB		 3801 if (err)
3802 goto unlock_rtnl;
3803
79c97e97 3804 if (!rdev->ops->join_ibss) {
04a773ad
JB		 3805 err = -EOPNOTSUPP;
3806 goto out;
3807 }
3808
3809 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3810 err = -EOPNOTSUPP;
3811 goto out;
3812 }
3813
3814 if (!netif_running(dev)) {
3815 err = -ENETDOWN;
3816 goto out;
3817 }
3818
79c97e97 3819 wiphy = &rdev->wiphy;
04a773ad
JB		 3820
3821 if (info->attrs[NL80211_ATTR_MAC])
3822 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3823 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3824 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3825
3826 if (info->attrs[NL80211_ATTR_IE]) {
3827 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3828 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3829 }
3830
3831 ibss.channel = ieee80211_get_channel(wiphy,
3832 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3833 if (!ibss.channel ||
3834 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3835 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3836 err = -EINVAL;
3837 goto out;
3838 }
3839
3840 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
fffd0934
JB		 3841 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3842
3843 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
3844 connkeys = nl80211_parse_connkeys(rdev,
3845 info->attrs[NL80211_ATTR_KEYS]);
3846 if (IS_ERR(connkeys)) {
3847 err = PTR_ERR(connkeys);
3848 connkeys = NULL;
3849 goto out;
3850 }
3851 }
04a773ad 3852
fffd0934 3853 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
04a773ad
JB		 3854
3855out:
79c97e97 3856 cfg80211_unlock_rdev(rdev);
04a773ad
JB		 3857 dev_put(dev);
3858unlock_rtnl:
fffd0934
JB		 3859 if (err)
3860 kfree(connkeys);
04a773ad
JB		 3861 rtnl_unlock();
3862 return err;
3863}
3864
3865static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3866{
79c97e97 3867 struct cfg80211_registered_device *rdev;
04a773ad
JB		 3868 struct net_device *dev;
3869 int err;
3870
3871 rtnl_lock();
3872
463d0183 3873 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
04a773ad
JB		 3874 if (err)
3875 goto unlock_rtnl;
3876
79c97e97 3877 if (!rdev->ops->leave_ibss) {
04a773ad
JB		 3878 err = -EOPNOTSUPP;
3879 goto out;
3880 }
3881
3882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3883 err = -EOPNOTSUPP;
3884 goto out;
3885 }
3886
3887 if (!netif_running(dev)) {
3888 err = -ENETDOWN;
3889 goto out;
3890 }
3891
79c97e97 3892 err = cfg80211_leave_ibss(rdev, dev, false);
04a773ad
JB		 3893
3894out:
79c97e97 3895 cfg80211_unlock_rdev(rdev);
04a773ad
JB		 3896 dev_put(dev);
3897unlock_rtnl:
3898 rtnl_unlock();
3899 return err;
3900}
3901
aff89a9b
JB		 3902#ifdef CONFIG_NL80211_TESTMODE
3903static struct genl_multicast_group nl80211_testmode_mcgrp = {
3904 .name = "testmode",
3905};
3906
3907static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
3908{
3909 struct cfg80211_registered_device *rdev;
3910 int err;
3911
3912 if (!info->attrs[NL80211_ATTR_TESTDATA])
3913 return -EINVAL;
3914
3915 rtnl_lock();
3916
3917 rdev = cfg80211_get_dev_from_info(info);
3918 if (IS_ERR(rdev)) {
3919 err = PTR_ERR(rdev);
3920 goto unlock_rtnl;
3921 }
3922
3923 err = -EOPNOTSUPP;
3924 if (rdev->ops->testmode_cmd) {
3925 rdev->testmode_info = info;
3926 err = rdev->ops->testmode_cmd(&rdev->wiphy,
3927 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
3928 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
3929 rdev->testmode_info = NULL;
3930 }
3931
4d0c8aea 3932 cfg80211_unlock_rdev(rdev);
aff89a9b
JB		 3933
3934 unlock_rtnl:
3935 rtnl_unlock();
3936 return err;
3937}
3938
3939static struct sk_buff *
3940__cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
3941 int approxlen, u32 pid, u32 seq, gfp_t gfp)
3942{
3943 struct sk_buff *skb;
3944 void *hdr;
3945 struct nlattr *data;
3946
3947 skb = nlmsg_new(approxlen + 100, gfp);
3948 if (!skb)
3949 return NULL;
3950
3951 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
3952 if (!hdr) {
3953 kfree_skb(skb);
3954 return NULL;
3955 }
3956
3957 NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3958 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
3959
3960 ((void **)skb->cb)[0] = rdev;
3961 ((void **)skb->cb)[1] = hdr;
3962 ((void **)skb->cb)[2] = data;
3963
3964 return skb;
3965
3966 nla_put_failure:
3967 kfree_skb(skb);
3968 return NULL;
3969}
3970
3971struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
3972 int approxlen)
3973{
3974 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
3975
3976 if (WARN_ON(!rdev->testmode_info))
3977 return NULL;
3978
3979 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
3980 rdev->testmode_info->snd_pid,
3981 rdev->testmode_info->snd_seq,
3982 GFP_KERNEL);
3983}
3984EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
3985
3986int cfg80211_testmode_reply(struct sk_buff *skb)
3987{
3988 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
3989 void *hdr = ((void **)skb->cb)[1];
3990 struct nlattr *data = ((void **)skb->cb)[2];
3991
3992 if (WARN_ON(!rdev->testmode_info)) {
3993 kfree_skb(skb);
3994 return -EINVAL;
3995 }
3996
3997 nla_nest_end(skb, data);
3998 genlmsg_end(skb, hdr);
3999 return genlmsg_reply(skb, rdev->testmode_info);
4000}
4001EXPORT_SYMBOL(cfg80211_testmode_reply);
4002
4003struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
4004 int approxlen, gfp_t gfp)
4005{
4006 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
4007
4008 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
4009}
4010EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
4011
4012void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
4013{
4014 void *hdr = ((void **)skb->cb)[1];
4015 struct nlattr *data = ((void **)skb->cb)[2];
4016
4017 nla_nest_end(skb, data);
4018 genlmsg_end(skb, hdr);
4019 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
4020}
4021EXPORT_SYMBOL(cfg80211_testmode_event);
4022#endif
4023
b23aa676
SO		 4024static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
4025{
79c97e97 4026 struct cfg80211_registered_device *rdev;
b23aa676
SO		 4027 struct net_device *dev;
4028 struct cfg80211_connect_params connect;
4029 struct wiphy *wiphy;
fffd0934 4030 struct cfg80211_cached_keys *connkeys = NULL;
b23aa676
SO		 4031 int err;
4032
4033 memset(&connect, 0, sizeof(connect));
4034
4035 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4036 return -EINVAL;
4037
4038 if (!info->attrs[NL80211_ATTR_SSID] ||
4039 !nla_len(info->attrs[NL80211_ATTR_SSID]))
4040 return -EINVAL;
4041
4042 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
4043 connect.auth_type =
4044 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4045 if (!nl80211_valid_auth_type(connect.auth_type))
4046 return -EINVAL;
4047 } else
4048 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
4049
4050 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
4051
3dc27d25
JB		 4052 err = nl80211_crypto_settings(info, &connect.crypto,
4053 NL80211_MAX_NR_CIPHER_SUITES);
b23aa676
SO		 4054 if (err)
4055 return err;
4056 rtnl_lock();
4057
463d0183 4058 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
b23aa676
SO		 4059 if (err)
4060 goto unlock_rtnl;
4061
4062 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4063 err = -EOPNOTSUPP;
4064 goto out;
4065 }
4066
4067 if (!netif_running(dev)) {
4068 err = -ENETDOWN;
4069 goto out;
4070 }
4071
79c97e97 4072 wiphy = &rdev->wiphy;
b23aa676 4073
b23aa676
SO		 4074 if (info->attrs[NL80211_ATTR_MAC])
4075 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4076 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4077 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4078
4079 if (info->attrs[NL80211_ATTR_IE]) {
4080 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4081 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4082 }
4083
4084 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
4085 connect.channel =
4086 ieee80211_get_channel(wiphy,
4087 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4088 if (!connect.channel ||
4089 connect.channel->flags & IEEE80211_CHAN_DISABLED) {
4090 err = -EINVAL;
4091 goto out;
4092 }
4093 }
4094
fffd0934
JB		 4095 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
4096 connkeys = nl80211_parse_connkeys(rdev,
4097 info->attrs[NL80211_ATTR_KEYS]);
4098 if (IS_ERR(connkeys)) {
4099 err = PTR_ERR(connkeys);
4100 connkeys = NULL;
4101 goto out;
4102 }
4103 }
4104
4105 err = cfg80211_connect(rdev, dev, &connect, connkeys);
b23aa676
SO		 4106
4107out:
79c97e97 4108 cfg80211_unlock_rdev(rdev);
b23aa676
SO		 4109 dev_put(dev);
4110unlock_rtnl:
fffd0934
JB		 4111 if (err)
4112 kfree(connkeys);
b23aa676
SO		 4113 rtnl_unlock();
4114 return err;
4115}
4116
4117static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
4118{
79c97e97 4119 struct cfg80211_registered_device *rdev;
b23aa676
SO		 4120 struct net_device *dev;
4121 int err;
4122 u16 reason;
4123
4124 if (!info->attrs[NL80211_ATTR_REASON_CODE])
4125 reason = WLAN_REASON_DEAUTH_LEAVING;
4126 else
4127 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4128
4129 if (reason == 0)
4130 return -EINVAL;
4131
4132 rtnl_lock();
4133
463d0183 4134 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
b23aa676
SO		 4135 if (err)
4136 goto unlock_rtnl;
4137
4138 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4139 err = -EOPNOTSUPP;
4140 goto out;
4141 }
4142
4143 if (!netif_running(dev)) {
4144 err = -ENETDOWN;
4145 goto out;
4146 }
4147
79c97e97 4148 err = cfg80211_disconnect(rdev, dev, reason, true);
b23aa676
SO		 4149
4150out:
79c97e97 4151 cfg80211_unlock_rdev(rdev);
b23aa676
SO		 4152 dev_put(dev);
4153unlock_rtnl:
4154 rtnl_unlock();
4155 return err;
4156}
4157
463d0183
JB		 4158static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
4159{
4160 struct cfg80211_registered_device *rdev;
4161 struct net *net;
4162 int err;
4163 u32 pid;
4164
4165 if (!info->attrs[NL80211_ATTR_PID])
4166 return -EINVAL;
4167
4168 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
4169
4170 rtnl_lock();
4171
4172 rdev = cfg80211_get_dev_from_info(info);
4173 if (IS_ERR(rdev)) {
4174 err = PTR_ERR(rdev);
8a8e05e5 4175 goto out_rtnl;
463d0183
JB		 4176 }
4177
4178 net = get_net_ns_by_pid(pid);
4179 if (IS_ERR(net)) {
4180 err = PTR_ERR(net);
4181 goto out;
4182 }
4183
4184 err = 0;
4185
4186 /* check if anything to do */
4187 if (net_eq(wiphy_net(&rdev->wiphy), net))
4188 goto out_put_net;
4189
4190 err = cfg80211_switch_netns(rdev, net);
4191 out_put_net:
4192 put_net(net);
4193 out:
4194 cfg80211_unlock_rdev(rdev);
8a8e05e5 4195 out_rtnl:
463d0183
JB		 4196 rtnl_unlock();
4197 return err;
4198}
4199
67fbb16b
SO		 4200static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
4201{
4202 struct cfg80211_registered_device *rdev;
4203 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
4204 struct cfg80211_pmksa *pmksa) = NULL;
4205 int err;
4206 struct net_device *dev;
4207 struct cfg80211_pmksa pmksa;
4208
4209 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
4210
4211 if (!info->attrs[NL80211_ATTR_MAC])
4212 return -EINVAL;
4213
4214 if (!info->attrs[NL80211_ATTR_PMKID])
4215 return -EINVAL;
4216
4217 rtnl_lock();
4218
4219 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4220 if (err)
4221 goto out_rtnl;
4222
4223 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
4224 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4225
4226 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4227 err = -EOPNOTSUPP;
4228 goto out;
4229 }
4230
4231 switch (info->genlhdr->cmd) {
4232 case NL80211_CMD_SET_PMKSA:
4233 rdev_ops = rdev->ops->set_pmksa;
4234 break;
4235 case NL80211_CMD_DEL_PMKSA:
4236 rdev_ops = rdev->ops->del_pmksa;
4237 break;
4238 default:
4239 WARN_ON(1);
4240 break;
4241 }
4242
4243 if (!rdev_ops) {
4244 err = -EOPNOTSUPP;
4245 goto out;
4246 }
4247
4248 err = rdev_ops(&rdev->wiphy, dev, &pmksa);
4249
4250 out:
4251 cfg80211_unlock_rdev(rdev);
4252 dev_put(dev);
4253 out_rtnl:
4254 rtnl_unlock();
4255
4256 return err;
4257}
4258
4259static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
4260{
4261 struct cfg80211_registered_device *rdev;
4262 int err;
4263 struct net_device *dev;
4264
4265 rtnl_lock();
4266
4267 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4268 if (err)
4269 goto out_rtnl;
4270
4271 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4272 err = -EOPNOTSUPP;
4273 goto out;
4274 }
4275
4276 if (!rdev->ops->flush_pmksa) {
4277 err = -EOPNOTSUPP;
4278 goto out;
4279 }
4280
4281 err = rdev->ops->flush_pmksa(&rdev->wiphy, dev);
4282
4283 out:
4284 cfg80211_unlock_rdev(rdev);
4285 dev_put(dev);
4286 out_rtnl:
4287 rtnl_unlock();
4288
4289 return err;
4290
4291}
4292
9588bbd5
JM		 4293static int nl80211_remain_on_channel(struct sk_buff *skb,
4294 struct genl_info *info)
4295{
4296 struct cfg80211_registered_device *rdev;
4297 struct net_device *dev;
4298 struct ieee80211_channel *chan;
4299 struct sk_buff *msg;
4300 void *hdr;
4301 u64 cookie;
4302 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4303 u32 freq, duration;
4304 int err;
4305
4306 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
4307 !info->attrs[NL80211_ATTR_DURATION])
4308 return -EINVAL;
4309
4310 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
4311
4312 /*
4313 * We should be on that channel for at least one jiffie,
4314 * and more than 5 seconds seems excessive.
4315 */
4316 if (!duration || !msecs_to_jiffies(duration) || duration > 5000)
4317 return -EINVAL;
4318
4319 rtnl_lock();
4320
4321 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4322 if (err)
4323 goto unlock_rtnl;
4324
4325 if (!rdev->ops->remain_on_channel) {
4326 err = -EOPNOTSUPP;
4327 goto out;
4328 }
4329
4330 if (!netif_running(dev)) {
4331 err = -ENETDOWN;
4332 goto out;
4333 }
4334
4335 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4336 channel_type = nla_get_u32(
4337 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4338 if (channel_type != NL80211_CHAN_NO_HT &&
4339 channel_type != NL80211_CHAN_HT20 &&
4340 channel_type != NL80211_CHAN_HT40PLUS &&
4341 channel_type != NL80211_CHAN_HT40MINUS)
4342 err = -EINVAL;
4343 goto out;
4344 }
4345
4346 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4347 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4348 if (chan == NULL) {
4349 err = -EINVAL;
4350 goto out;
4351 }
4352
4353 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4354 if (!msg) {
4355 err = -ENOMEM;
4356 goto out;
4357 }
4358
4359 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4360 NL80211_CMD_REMAIN_ON_CHANNEL);
4361
4362 if (IS_ERR(hdr)) {
4363 err = PTR_ERR(hdr);
4364 goto free_msg;
4365 }
4366
4367 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
4368 channel_type, duration, &cookie);
4369
4370 if (err)
4371 goto free_msg;
4372
4373 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4374
4375 genlmsg_end(msg, hdr);
4376 err = genlmsg_reply(msg, info);
4377 goto out;
4378
4379 nla_put_failure:
4380 err = -ENOBUFS;
4381 free_msg:
4382 nlmsg_free(msg);
4383 out:
4384 cfg80211_unlock_rdev(rdev);
4385 dev_put(dev);
4386 unlock_rtnl:
4387 rtnl_unlock();
4388 return err;
4389}
4390
4391static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
4392 struct genl_info *info)
4393{
4394 struct cfg80211_registered_device *rdev;
4395 struct net_device *dev;
4396 u64 cookie;
4397 int err;
4398
4399 if (!info->attrs[NL80211_ATTR_COOKIE])
4400 return -EINVAL;
4401
4402 rtnl_lock();
4403
4404 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4405 if (err)
4406 goto unlock_rtnl;
4407
4408 if (!rdev->ops->cancel_remain_on_channel) {
4409 err = -EOPNOTSUPP;
4410 goto out;
4411 }
4412
4413 if (!netif_running(dev)) {
4414 err = -ENETDOWN;
4415 goto out;
4416 }
4417
4418 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
4419
4420 err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
4421
4422 out:
4423 cfg80211_unlock_rdev(rdev);
4424 dev_put(dev);
4425 unlock_rtnl:
4426 rtnl_unlock();
4427 return err;
4428}
4429
13ae75b1
JM		 4430static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
4431 u8 *rates, u8 rates_len)
4432{
4433 u8 i;
4434 u32 mask = 0;
4435
4436 for (i = 0; i < rates_len; i++) {
4437 int rate = (rates[i] & 0x7f) * 5;
4438 int ridx;
4439 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
4440 struct ieee80211_rate *srate =
4441 &sband->bitrates[ridx];
4442 if (rate == srate->bitrate) {
4443 mask |= 1 << ridx;
4444 break;
4445 }
4446 }
4447 if (ridx == sband->n_bitrates)
4448 return 0; /* rate not found */
4449 }
4450
4451 return mask;
4452}
4453
4454static struct nla_policy
4455nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] __read_mostly = {
4456 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
4457 .len = NL80211_MAX_SUPP_RATES },
4458};
4459
4460static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
4461 struct genl_info *info)
4462{
4463 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
4464 struct cfg80211_registered_device *rdev;
4465 struct cfg80211_bitrate_mask mask;
4466 int err, rem, i;
4467 struct net_device *dev;
4468 struct nlattr *tx_rates;
4469 struct ieee80211_supported_band *sband;
4470
4471 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
4472 return -EINVAL;
4473
4474 rtnl_lock();
4475
4476 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4477 if (err)
4478 goto unlock_rtnl;
4479
4480 if (!rdev->ops->set_bitrate_mask) {
4481 err = -EOPNOTSUPP;
4482 goto unlock;
4483 }
4484
4485 memset(&mask, 0, sizeof(mask));
4486 /* Default to all rates enabled */
4487 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
4488 sband = rdev->wiphy.bands[i];
4489 mask.control[i].legacy =
4490 sband ? (1 << sband->n_bitrates) - 1 : 0;
4491 }
4492
4493 /*
4494 * The nested attribute uses enum nl80211_band as the index. This maps
4495 * directly to the enum ieee80211_band values used in cfg80211.
4496 */
4497 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
4498 {
4499 enum ieee80211_band band = nla_type(tx_rates);
4500 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4501 err = -EINVAL;
4502 goto unlock;
4503 }
4504 sband = rdev->wiphy.bands[band];
4505 if (sband == NULL) {
4506 err = -EINVAL;
4507 goto unlock;
4508 }
4509 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
4510 nla_len(tx_rates), nl80211_txattr_policy);
4511 if (tb[NL80211_TXRATE_LEGACY]) {
4512 mask.control[band].legacy = rateset_to_mask(
4513 sband,
4514 nla_data(tb[NL80211_TXRATE_LEGACY]),
4515 nla_len(tb[NL80211_TXRATE_LEGACY]));
4516 if (mask.control[band].legacy == 0) {
4517 err = -EINVAL;
4518 goto unlock;
4519 }
4520 }
4521 }
4522
4523 err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
4524
4525 unlock:
4526 dev_put(dev);
4527 cfg80211_unlock_rdev(rdev);
4528 unlock_rtnl:
4529 rtnl_unlock();
4530 return err;
4531}
4532
026331c4
JM		 4533static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info)
4534{
4535 struct cfg80211_registered_device *rdev;
4536 struct net_device *dev;
4537 int err;
4538
4539 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
4540 return -EINVAL;
4541
4542 if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1)
4543 return -EINVAL;
4544
4545 rtnl_lock();
4546
4547 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4548 if (err)
4549 goto unlock_rtnl;
4550
4551 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4552 err = -EOPNOTSUPP;
4553 goto out;
4554 }
4555
4556 /* not much point in registering if we can't reply */
4557 if (!rdev->ops->action) {
4558 err = -EOPNOTSUPP;
4559 goto out;
4560 }
4561
4562 err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid,
4563 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
4564 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
4565 out:
4566 cfg80211_unlock_rdev(rdev);
4567 dev_put(dev);
4568 unlock_rtnl:
4569 rtnl_unlock();
4570 return err;
4571}
4572
4573static int nl80211_action(struct sk_buff *skb, struct genl_info *info)
4574{
4575 struct cfg80211_registered_device *rdev;
4576 struct net_device *dev;
4577 struct ieee80211_channel *chan;
4578 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
4579 u32 freq;
4580 int err;
4581 void *hdr;
4582 u64 cookie;
4583 struct sk_buff *msg;
4584
4585 if (!info->attrs[NL80211_ATTR_FRAME] ||
4586 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4587 return -EINVAL;
4588
4589 rtnl_lock();
4590
4591 err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
4592 if (err)
4593 goto unlock_rtnl;
4594
4595 if (!rdev->ops->action) {
4596 err = -EOPNOTSUPP;
4597 goto out;
4598 }
4599
4600 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
4601 err = -EOPNOTSUPP;
4602 goto out;
4603 }
4604
4605 if (!netif_running(dev)) {
4606 err = -ENETDOWN;
4607 goto out;
4608 }
4609
4610 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
4611 channel_type = nla_get_u32(
4612 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
4613 if (channel_type != NL80211_CHAN_NO_HT &&
4614 channel_type != NL80211_CHAN_HT20 &&
4615 channel_type != NL80211_CHAN_HT40PLUS &&
4616 channel_type != NL80211_CHAN_HT40MINUS)
4617 err = -EINVAL;
4618 goto out;
4619 }
4620
4621 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
4622 chan = rdev_freq_to_chan(rdev, freq, channel_type);
4623 if (chan == NULL) {
4624 err = -EINVAL;
4625 goto out;
4626 }
4627
4628 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4629 if (!msg) {
4630 err = -ENOMEM;
4631 goto out;
4632 }
4633
4634 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4635 NL80211_CMD_ACTION);
4636
4637 if (IS_ERR(hdr)) {
4638 err = PTR_ERR(hdr);
4639 goto free_msg;
4640 }
4641 err = cfg80211_mlme_action(rdev, dev, chan, channel_type,
4642 nla_data(info->attrs[NL80211_ATTR_FRAME]),
4643 nla_len(info->attrs[NL80211_ATTR_FRAME]),
4644 &cookie);
4645 if (err)
4646 goto free_msg;
4647
4648 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
4649
4650 genlmsg_end(msg, hdr);
4651 err = genlmsg_reply(msg, info);
4652 goto out;
4653
4654 nla_put_failure:
4655 err = -ENOBUFS;
4656 free_msg:
4657 nlmsg_free(msg);
4658 out:
4659 cfg80211_unlock_rdev(rdev);
4660 dev_put(dev);
4661unlock_rtnl:
4662 rtnl_unlock();
4663 return err;
4664}
4665
55682965
JB		 4666static struct genl_ops nl80211_ops[] = {
4667 {
4668 .cmd = NL80211_CMD_GET_WIPHY,
4669 .doit = nl80211_get_wiphy,
4670 .dumpit = nl80211_dump_wiphy,
4671 .policy = nl80211_policy,
4672 /* can be retrieved by unprivileged users */
4673 },
4674 {
4675 .cmd = NL80211_CMD_SET_WIPHY,
4676 .doit = nl80211_set_wiphy,
4677 .policy = nl80211_policy,
4678 .flags = GENL_ADMIN_PERM,
4679 },
4680 {
4681 .cmd = NL80211_CMD_GET_INTERFACE,
4682 .doit = nl80211_get_interface,
4683 .dumpit = nl80211_dump_interface,
4684 .policy = nl80211_policy,
4685 /* can be retrieved by unprivileged users */
4686 },
4687 {
4688 .cmd = NL80211_CMD_SET_INTERFACE,
4689 .doit = nl80211_set_interface,
4690 .policy = nl80211_policy,
4691 .flags = GENL_ADMIN_PERM,
4692 },
4693 {
4694 .cmd = NL80211_CMD_NEW_INTERFACE,
4695 .doit = nl80211_new_interface,
4696 .policy = nl80211_policy,
4697 .flags = GENL_ADMIN_PERM,
4698 },
4699 {
4700 .cmd = NL80211_CMD_DEL_INTERFACE,
4701 .doit = nl80211_del_interface,
4702 .policy = nl80211_policy,
41ade00f
JB		 4703 .flags = GENL_ADMIN_PERM,
4704 },
4705 {
4706 .cmd = NL80211_CMD_GET_KEY,
4707 .doit = nl80211_get_key,
4708 .policy = nl80211_policy,
4709 .flags = GENL_ADMIN_PERM,
4710 },
4711 {
4712 .cmd = NL80211_CMD_SET_KEY,
4713 .doit = nl80211_set_key,
4714 .policy = nl80211_policy,
4715 .flags = GENL_ADMIN_PERM,
4716 },
4717 {
4718 .cmd = NL80211_CMD_NEW_KEY,
4719 .doit = nl80211_new_key,
4720 .policy = nl80211_policy,
4721 .flags = GENL_ADMIN_PERM,
4722 },
4723 {
4724 .cmd = NL80211_CMD_DEL_KEY,
4725 .doit = nl80211_del_key,
4726 .policy = nl80211_policy,
55682965
JB		 4727 .flags = GENL_ADMIN_PERM,
4728 },
ed1b6cc7
JB		 4729 {
4730 .cmd = NL80211_CMD_SET_BEACON,
4731 .policy = nl80211_policy,
4732 .flags = GENL_ADMIN_PERM,
4733 .doit = nl80211_addset_beacon,
4734 },
4735 {
4736 .cmd = NL80211_CMD_NEW_BEACON,
4737 .policy = nl80211_policy,
4738 .flags = GENL_ADMIN_PERM,
4739 .doit = nl80211_addset_beacon,
4740 },
4741 {
4742 .cmd = NL80211_CMD_DEL_BEACON,
4743 .policy = nl80211_policy,
4744 .flags = GENL_ADMIN_PERM,
4745 .doit = nl80211_del_beacon,
4746 },
5727ef1b
JB		 4747 {
4748 .cmd = NL80211_CMD_GET_STATION,
4749 .doit = nl80211_get_station,
2ec600d6 4750 .dumpit = nl80211_dump_station,
5727ef1b 4751 .policy = nl80211_policy,
5727ef1b
JB		 4752 },
4753 {
4754 .cmd = NL80211_CMD_SET_STATION,
4755 .doit = nl80211_set_station,
4756 .policy = nl80211_policy,
4757 .flags = GENL_ADMIN_PERM,
4758 },
4759 {
4760 .cmd = NL80211_CMD_NEW_STATION,
4761 .doit = nl80211_new_station,
4762 .policy = nl80211_policy,
4763 .flags = GENL_ADMIN_PERM,
4764 },
4765 {
4766 .cmd = NL80211_CMD_DEL_STATION,
4767 .doit = nl80211_del_station,
4768 .policy = nl80211_policy,
2ec600d6
LCC		 4769 .flags = GENL_ADMIN_PERM,
4770 },
4771 {
4772 .cmd = NL80211_CMD_GET_MPATH,
4773 .doit = nl80211_get_mpath,
4774 .dumpit = nl80211_dump_mpath,
4775 .policy = nl80211_policy,
4776 .flags = GENL_ADMIN_PERM,
4777 },
4778 {
4779 .cmd = NL80211_CMD_SET_MPATH,
4780 .doit = nl80211_set_mpath,
4781 .policy = nl80211_policy,
4782 .flags = GENL_ADMIN_PERM,
4783 },
4784 {
4785 .cmd = NL80211_CMD_NEW_MPATH,
4786 .doit = nl80211_new_mpath,
4787 .policy = nl80211_policy,
4788 .flags = GENL_ADMIN_PERM,
4789 },
4790 {
4791 .cmd = NL80211_CMD_DEL_MPATH,
4792 .doit = nl80211_del_mpath,
4793 .policy = nl80211_policy,
9f1ba906
JM		 4794 .flags = GENL_ADMIN_PERM,
4795 },
4796 {
4797 .cmd = NL80211_CMD_SET_BSS,
4798 .doit = nl80211_set_bss,
4799 .policy = nl80211_policy,
b2e1b302
LR		 4800 .flags = GENL_ADMIN_PERM,
4801 },
f130347c
LR		 4802 {
4803 .cmd = NL80211_CMD_GET_REG,
4804 .doit = nl80211_get_reg,
4805 .policy = nl80211_policy,
4806 /* can be retrieved by unprivileged users */
4807 },
b2e1b302
LR		 4808 {
4809 .cmd = NL80211_CMD_SET_REG,
4810 .doit = nl80211_set_reg,
4811 .policy = nl80211_policy,
4812 .flags = GENL_ADMIN_PERM,
4813 },
4814 {
4815 .cmd = NL80211_CMD_REQ_SET_REG,
4816 .doit = nl80211_req_set_reg,
4817 .policy = nl80211_policy,
93da9cc1 4818 .flags = GENL_ADMIN_PERM,
4819 },
4820 {
4821 .cmd = NL80211_CMD_GET_MESH_PARAMS,
4822 .doit = nl80211_get_mesh_params,
4823 .policy = nl80211_policy,
4824 /* can be retrieved by unprivileged users */
4825 },
4826 {
4827 .cmd = NL80211_CMD_SET_MESH_PARAMS,
4828 .doit = nl80211_set_mesh_params,
4829 .policy = nl80211_policy,
9aed3cc1
JM		 4830 .flags = GENL_ADMIN_PERM,
4831 },
2a519311
JB		 4832 {
4833 .cmd = NL80211_CMD_TRIGGER_SCAN,
4834 .doit = nl80211_trigger_scan,
4835 .policy = nl80211_policy,
4836 .flags = GENL_ADMIN_PERM,
4837 },
4838 {
4839 .cmd = NL80211_CMD_GET_SCAN,
4840 .policy = nl80211_policy,
4841 .dumpit = nl80211_dump_scan,
4842 },
636a5d36
JM		 4843 {
4844 .cmd = NL80211_CMD_AUTHENTICATE,
4845 .doit = nl80211_authenticate,
4846 .policy = nl80211_policy,
4847 .flags = GENL_ADMIN_PERM,
4848 },
4849 {
4850 .cmd = NL80211_CMD_ASSOCIATE,
4851 .doit = nl80211_associate,
4852 .policy = nl80211_policy,
4853 .flags = GENL_ADMIN_PERM,
4854 },
4855 {
4856 .cmd = NL80211_CMD_DEAUTHENTICATE,
4857 .doit = nl80211_deauthenticate,
4858 .policy = nl80211_policy,
4859 .flags = GENL_ADMIN_PERM,
4860 },
4861 {
4862 .cmd = NL80211_CMD_DISASSOCIATE,
4863 .doit = nl80211_disassociate,
4864 .policy = nl80211_policy,
4865 .flags = GENL_ADMIN_PERM,
4866 },
04a773ad
JB		 4867 {
4868 .cmd = NL80211_CMD_JOIN_IBSS,
4869 .doit = nl80211_join_ibss,
4870 .policy = nl80211_policy,
4871 .flags = GENL_ADMIN_PERM,
4872 },
4873 {
4874 .cmd = NL80211_CMD_LEAVE_IBSS,
4875 .doit = nl80211_leave_ibss,
4876 .policy = nl80211_policy,
4877 .flags = GENL_ADMIN_PERM,
4878 },
aff89a9b
JB		 4879#ifdef CONFIG_NL80211_TESTMODE
4880 {
4881 .cmd = NL80211_CMD_TESTMODE,
4882 .doit = nl80211_testmode_do,
4883 .policy = nl80211_policy,
4884 .flags = GENL_ADMIN_PERM,
4885 },
4886#endif
b23aa676
SO		 4887 {
4888 .cmd = NL80211_CMD_CONNECT,
4889 .doit = nl80211_connect,
4890 .policy = nl80211_policy,
4891 .flags = GENL_ADMIN_PERM,
4892 },
4893 {
4894 .cmd = NL80211_CMD_DISCONNECT,
4895 .doit = nl80211_disconnect,
4896 .policy = nl80211_policy,
4897 .flags = GENL_ADMIN_PERM,
4898 },
463d0183
JB		 4899 {
4900 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
4901 .doit = nl80211_wiphy_netns,
4902 .policy = nl80211_policy,
4903 .flags = GENL_ADMIN_PERM,
4904 },
61fa713c
HS		 4905 {
4906 .cmd = NL80211_CMD_GET_SURVEY,
4907 .policy = nl80211_policy,
4908 .dumpit = nl80211_dump_survey,
4909 },
67fbb16b
SO		 4910 {
4911 .cmd = NL80211_CMD_SET_PMKSA,
4912 .doit = nl80211_setdel_pmksa,
4913 .policy = nl80211_policy,
4914 .flags = GENL_ADMIN_PERM,
4915 },
4916 {
4917 .cmd = NL80211_CMD_DEL_PMKSA,
4918 .doit = nl80211_setdel_pmksa,
4919 .policy = nl80211_policy,
4920 .flags = GENL_ADMIN_PERM,
4921 },
4922 {
4923 .cmd = NL80211_CMD_FLUSH_PMKSA,
4924 .doit = nl80211_flush_pmksa,
4925 .policy = nl80211_policy,
4926 .flags = GENL_ADMIN_PERM,
4927 },
9588bbd5
JM		 4928 {
4929 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
4930 .doit = nl80211_remain_on_channel,
4931 .policy = nl80211_policy,
4932 .flags = GENL_ADMIN_PERM,
4933 },
4934 {
4935 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
4936 .doit = nl80211_cancel_remain_on_channel,
4937 .policy = nl80211_policy,
4938 .flags = GENL_ADMIN_PERM,
4939 },
13ae75b1
JM		 4940 {
4941 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
4942 .doit = nl80211_set_tx_bitrate_mask,
4943 .policy = nl80211_policy,
4944 .flags = GENL_ADMIN_PERM,
4945 },
026331c4
JM		 4946 {
4947 .cmd = NL80211_CMD_REGISTER_ACTION,
4948 .doit = nl80211_register_action,
4949 .policy = nl80211_policy,
4950 .flags = GENL_ADMIN_PERM,
4951 },
4952 {
4953 .cmd = NL80211_CMD_ACTION,
4954 .doit = nl80211_action,
4955 .policy = nl80211_policy,
4956 .flags = GENL_ADMIN_PERM,
4957 },
55682965 4958};
9588bbd5 4959
6039f6d2
JM		 4960static struct genl_multicast_group nl80211_mlme_mcgrp = {
4961 .name = "mlme",
4962};
55682965
JB		 4963
4964/* multicast groups */
4965static struct genl_multicast_group nl80211_config_mcgrp = {
4966 .name = "config",
4967};
2a519311
JB		 4968static struct genl_multicast_group nl80211_scan_mcgrp = {
4969 .name = "scan",
4970};
73d54c9e
LR		 4971static struct genl_multicast_group nl80211_regulatory_mcgrp = {
4972 .name = "regulatory",
4973};
55682965
JB		 4974
4975/* notification functions */
4976
4977void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
4978{
4979 struct sk_buff *msg;
4980
fd2120ca 4981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 4982 if (!msg)
4983 return;
4984
4985 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
4986 nlmsg_free(msg);
4987 return;
4988 }
4989
463d0183
JB		 4990 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
4991 nl80211_config_mcgrp.id, GFP_KERNEL);
55682965
JB		 4992}
4993
362a415d
JB		 4994static int nl80211_add_scan_req(struct sk_buff *msg,
4995 struct cfg80211_registered_device *rdev)
4996{
4997 struct cfg80211_scan_request *req = rdev->scan_req;
4998 struct nlattr *nest;
4999 int i;
5000
667503dd
JB		 5001 ASSERT_RDEV_LOCK(rdev);
5002
362a415d
JB		 5003 if (WARN_ON(!req))
5004 return 0;
5005
5006 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
5007 if (!nest)
5008 goto nla_put_failure;
5009 for (i = 0; i < req->n_ssids; i++)
5010 NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid);
5011 nla_nest_end(msg, nest);
5012
5013 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
5014 if (!nest)
5015 goto nla_put_failure;
5016 for (i = 0; i < req->n_channels; i++)
5017 NLA_PUT_U32(msg, i, req->channels[i]->center_freq);
5018 nla_nest_end(msg, nest);
5019
5020 if (req->ie)
5021 NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie);
5022
5023 return 0;
5024 nla_put_failure:
5025 return -ENOBUFS;
5026}
5027
a538e2d5
JB		 5028static int nl80211_send_scan_msg(struct sk_buff *msg,
5029 struct cfg80211_registered_device *rdev,
5030 struct net_device *netdev,
5031 u32 pid, u32 seq, int flags,
5032 u32 cmd)
2a519311
JB		 5033{
5034 void *hdr;
5035
5036 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
5037 if (!hdr)
5038 return -1;
5039
b5850a7a 5040 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 5041 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5042
362a415d
JB		 5043 /* ignore errors and send incomplete event anyway */
5044 nl80211_add_scan_req(msg, rdev);
2a519311
JB		 5045
5046 return genlmsg_end(msg, hdr);
5047
5048 nla_put_failure:
5049 genlmsg_cancel(msg, hdr);
5050 return -EMSGSIZE;
5051}
5052
a538e2d5
JB		 5053void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
5054 struct net_device *netdev)
5055{
5056 struct sk_buff *msg;
5057
5058 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
5059 if (!msg)
5060 return;
5061
5062 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5063 NL80211_CMD_TRIGGER_SCAN) < 0) {
5064 nlmsg_free(msg);
5065 return;
5066 }
5067
463d0183
JB		 5068 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5069 nl80211_scan_mcgrp.id, GFP_KERNEL);
a538e2d5
JB		 5070}
5071
2a519311
JB		 5072void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
5073 struct net_device *netdev)
5074{
5075 struct sk_buff *msg;
5076
fd2120ca 5077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5078 if (!msg)
5079 return;
5080
a538e2d5
JB		 5081 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5082 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
2a519311
JB		 5083 nlmsg_free(msg);
5084 return;
5085 }
5086
463d0183
JB		 5087 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5088 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5089}
5090
5091void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
5092 struct net_device *netdev)
5093{
5094 struct sk_buff *msg;
5095
fd2120ca 5096 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 5097 if (!msg)
5098 return;
5099
a538e2d5
JB		 5100 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
5101 NL80211_CMD_SCAN_ABORTED) < 0) {
2a519311
JB		 5102 nlmsg_free(msg);
5103 return;
5104 }
5105
463d0183
JB		 5106 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5107 nl80211_scan_mcgrp.id, GFP_KERNEL);
2a519311
JB		 5108}
5109
73d54c9e
LR		 5110/*
5111 * This can happen on global regulatory changes or device specific settings
5112 * based on custom world regulatory domains.
5113 */
5114void nl80211_send_reg_change_event(struct regulatory_request *request)
5115{
5116 struct sk_buff *msg;
5117 void *hdr;
5118
fd2120ca 5119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 5120 if (!msg)
5121 return;
5122
5123 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
5124 if (!hdr) {
5125 nlmsg_free(msg);
5126 return;
5127 }
5128
5129 /* Userspace can always count this one always being set */
5130 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
5131
5132 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
5133 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5134 NL80211_REGDOM_TYPE_WORLD);
5135 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
5136 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5137 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
5138 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
5139 request->intersect)
5140 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5141 NL80211_REGDOM_TYPE_INTERSECTION);
5142 else {
5143 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
5144 NL80211_REGDOM_TYPE_COUNTRY);
5145 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
5146 }
5147
5148 if (wiphy_idx_valid(request->wiphy_idx))
5149 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
5150
5151 if (genlmsg_end(msg, hdr) < 0) {
5152 nlmsg_free(msg);
5153 return;
5154 }
5155
bc43b28c 5156 rcu_read_lock();
463d0183 5157 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
bc43b28c
JB		 5158 GFP_ATOMIC);
5159 rcu_read_unlock();
73d54c9e
LR		 5160
5161 return;
5162
5163nla_put_failure:
5164 genlmsg_cancel(msg, hdr);
5165 nlmsg_free(msg);
5166}
5167
6039f6d2
JM		 5168static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
5169 struct net_device *netdev,
5170 const u8 *buf, size_t len,
e6d6e342 5171 enum nl80211_commands cmd, gfp_t gfp)
6039f6d2
JM		 5172{
5173 struct sk_buff *msg;
5174 void *hdr;
5175
e6d6e342 5176 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
6039f6d2
JM		 5177 if (!msg)
5178 return;
5179
5180 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5181 if (!hdr) {
5182 nlmsg_free(msg);
5183 return;
5184 }
5185
5186 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5187 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5188 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5189
5190 if (genlmsg_end(msg, hdr) < 0) {
5191 nlmsg_free(msg);
5192 return;
5193 }
5194
463d0183
JB		 5195 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5196 nl80211_mlme_mcgrp.id, gfp);
6039f6d2
JM		 5197 return;
5198
5199 nla_put_failure:
5200 genlmsg_cancel(msg, hdr);
5201 nlmsg_free(msg);
5202}
5203
5204void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5205 struct net_device *netdev, const u8 *buf,
5206 size_t len, gfp_t gfp)
6039f6d2
JM		 5207{
5208 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5209 NL80211_CMD_AUTHENTICATE, gfp);
6039f6d2
JM		 5210}
5211
5212void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
5213 struct net_device *netdev, const u8 *buf,
e6d6e342 5214 size_t len, gfp_t gfp)
6039f6d2 5215{
e6d6e342
JB		 5216 nl80211_send_mlme_event(rdev, netdev, buf, len,
5217 NL80211_CMD_ASSOCIATE, gfp);
6039f6d2
JM		 5218}
5219
53b46b84 5220void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5221 struct net_device *netdev, const u8 *buf,
5222 size_t len, gfp_t gfp)
6039f6d2
JM		 5223{
5224 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5225 NL80211_CMD_DEAUTHENTICATE, gfp);
6039f6d2
JM		 5226}
5227
53b46b84
JM		 5228void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
5229 struct net_device *netdev, const u8 *buf,
e6d6e342 5230 size_t len, gfp_t gfp)
6039f6d2
JM		 5231{
5232 nl80211_send_mlme_event(rdev, netdev, buf, len,
e6d6e342 5233 NL80211_CMD_DISASSOCIATE, gfp);
6039f6d2
JM		 5234}
5235
1b06bb40
LR		 5236static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
5237 struct net_device *netdev, int cmd,
e6d6e342 5238 const u8 *addr, gfp_t gfp)
1965c853
JM		 5239{
5240 struct sk_buff *msg;
5241 void *hdr;
5242
e6d6e342 5243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
1965c853
JM		 5244 if (!msg)
5245 return;
5246
5247 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5248 if (!hdr) {
5249 nlmsg_free(msg);
5250 return;
5251 }
5252
5253 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5254 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5255 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
5256 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
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);
1965c853
JM		 5265 return;
5266
5267 nla_put_failure:
5268 genlmsg_cancel(msg, hdr);
5269 nlmsg_free(msg);
5270}
5271
5272void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5273 struct net_device *netdev, const u8 *addr,
5274 gfp_t gfp)
1965c853
JM		 5275{
5276 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
e6d6e342 5277 addr, gfp);
1965c853
JM		 5278}
5279
5280void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
e6d6e342
JB		 5281 struct net_device *netdev, const u8 *addr,
5282 gfp_t gfp)
1965c853 5283{
e6d6e342
JB		 5284 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
5285 addr, gfp);
1965c853
JM		 5286}
5287
b23aa676
SO		 5288void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
5289 struct net_device *netdev, const u8 *bssid,
5290 const u8 *req_ie, size_t req_ie_len,
5291 const u8 *resp_ie, size_t resp_ie_len,
5292 u16 status, gfp_t gfp)
5293{
5294 struct sk_buff *msg;
5295 void *hdr;
5296
5297 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5298 if (!msg)
5299 return;
5300
5301 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
5302 if (!hdr) {
5303 nlmsg_free(msg);
5304 return;
5305 }
5306
5307 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5308 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5309 if (bssid)
5310 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5311 NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status);
5312 if (req_ie)
5313 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5314 if (resp_ie)
5315 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5316
5317 if (genlmsg_end(msg, hdr) < 0) {
5318 nlmsg_free(msg);
5319 return;
5320 }
5321
463d0183
JB		 5322 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5323 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5324 return;
5325
5326 nla_put_failure:
5327 genlmsg_cancel(msg, hdr);
5328 nlmsg_free(msg);
5329
5330}
5331
5332void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
5333 struct net_device *netdev, const u8 *bssid,
5334 const u8 *req_ie, size_t req_ie_len,
5335 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
5336{
5337 struct sk_buff *msg;
5338 void *hdr;
5339
5340 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5341 if (!msg)
5342 return;
5343
5344 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
5345 if (!hdr) {
5346 nlmsg_free(msg);
5347 return;
5348 }
5349
5350 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5351 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5352 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5353 if (req_ie)
5354 NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie);
5355 if (resp_ie)
5356 NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie);
5357
5358 if (genlmsg_end(msg, hdr) < 0) {
5359 nlmsg_free(msg);
5360 return;
5361 }
5362
463d0183
JB		 5363 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5364 nl80211_mlme_mcgrp.id, gfp);
b23aa676
SO		 5365 return;
5366
5367 nla_put_failure:
5368 genlmsg_cancel(msg, hdr);
5369 nlmsg_free(msg);
5370
5371}
5372
5373void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
5374 struct net_device *netdev, u16 reason,
667503dd 5375 const u8 *ie, size_t ie_len, bool from_ap)
b23aa676
SO		 5376{
5377 struct sk_buff *msg;
5378 void *hdr;
5379
667503dd 5380 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
b23aa676
SO		 5381 if (!msg)
5382 return;
5383
5384 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
5385 if (!hdr) {
5386 nlmsg_free(msg);
5387 return;
5388 }
5389
5390 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5391 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5392 if (from_ap && reason)
5393 NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason);
5394 if (from_ap)
5395 NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP);
5396 if (ie)
5397 NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie);
5398
5399 if (genlmsg_end(msg, hdr) < 0) {
5400 nlmsg_free(msg);
5401 return;
5402 }
5403
463d0183
JB		 5404 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5405 nl80211_mlme_mcgrp.id, GFP_KERNEL);
b23aa676
SO		 5406 return;
5407
5408 nla_put_failure:
5409 genlmsg_cancel(msg, hdr);
5410 nlmsg_free(msg);
5411
5412}
5413
04a773ad
JB		 5414void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
5415 struct net_device *netdev, const u8 *bssid,
5416 gfp_t gfp)
5417{
5418 struct sk_buff *msg;
5419 void *hdr;
5420
fd2120ca 5421 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 5422 if (!msg)
5423 return;
5424
5425 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
5426 if (!hdr) {
5427 nlmsg_free(msg);
5428 return;
5429 }
5430
5431 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5432 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5433 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
5434
5435 if (genlmsg_end(msg, hdr) < 0) {
5436 nlmsg_free(msg);
5437 return;
5438 }
5439
463d0183
JB		 5440 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5441 nl80211_mlme_mcgrp.id, gfp);
04a773ad
JB		 5442 return;
5443
5444 nla_put_failure:
5445 genlmsg_cancel(msg, hdr);
5446 nlmsg_free(msg);
5447}
5448
a3b8b056
JM		 5449void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
5450 struct net_device *netdev, const u8 *addr,
5451 enum nl80211_key_type key_type, int key_id,
e6d6e342 5452 const u8 *tsc, gfp_t gfp)
a3b8b056
JM		 5453{
5454 struct sk_buff *msg;
5455 void *hdr;
5456
e6d6e342 5457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
a3b8b056
JM		 5458 if (!msg)
5459 return;
5460
5461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
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 if (addr)
5470 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
5471 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
5472 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
5473 if (tsc)
5474 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
5475
5476 if (genlmsg_end(msg, hdr) < 0) {
5477 nlmsg_free(msg);
5478 return;
5479 }
5480
463d0183
JB		 5481 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5482 nl80211_mlme_mcgrp.id, gfp);
a3b8b056
JM		 5483 return;
5484
5485 nla_put_failure:
5486 genlmsg_cancel(msg, hdr);
5487 nlmsg_free(msg);
5488}
5489
6bad8766
LR		 5490void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
5491 struct ieee80211_channel *channel_before,
5492 struct ieee80211_channel *channel_after)
5493{
5494 struct sk_buff *msg;
5495 void *hdr;
5496 struct nlattr *nl_freq;
5497
fd2120ca 5498 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 5499 if (!msg)
5500 return;
5501
5502 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
5503 if (!hdr) {
5504 nlmsg_free(msg);
5505 return;
5506 }
5507
5508 /*
5509 * Since we are applying the beacon hint to a wiphy we know its
5510 * wiphy_idx is valid
5511 */
5512 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
5513
5514 /* Before */
5515 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
5516 if (!nl_freq)
5517 goto nla_put_failure;
5518 if (nl80211_msg_put_channel(msg, channel_before))
5519 goto nla_put_failure;
5520 nla_nest_end(msg, nl_freq);
5521
5522 /* After */
5523 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
5524 if (!nl_freq)
5525 goto nla_put_failure;
5526 if (nl80211_msg_put_channel(msg, channel_after))
5527 goto nla_put_failure;
5528 nla_nest_end(msg, nl_freq);
5529
5530 if (genlmsg_end(msg, hdr) < 0) {
5531 nlmsg_free(msg);
5532 return;
5533 }
5534
463d0183
JB		 5535 rcu_read_lock();
5536 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
5537 GFP_ATOMIC);
5538 rcu_read_unlock();
6bad8766
LR		 5539
5540 return;
5541
5542nla_put_failure:
5543 genlmsg_cancel(msg, hdr);
5544 nlmsg_free(msg);
5545}
5546
9588bbd5
JM		 5547static void nl80211_send_remain_on_chan_event(
5548 int cmd, struct cfg80211_registered_device *rdev,
5549 struct net_device *netdev, u64 cookie,
5550 struct ieee80211_channel *chan,
5551 enum nl80211_channel_type channel_type,
5552 unsigned int duration, gfp_t gfp)
5553{
5554 struct sk_buff *msg;
5555 void *hdr;
5556
5557 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5558 if (!msg)
5559 return;
5560
5561 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
5562 if (!hdr) {
5563 nlmsg_free(msg);
5564 return;
5565 }
5566
5567 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5568 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5569 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq);
5570 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type);
5571 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5572
5573 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL)
5574 NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration);
5575
5576 if (genlmsg_end(msg, hdr) < 0) {
5577 nlmsg_free(msg);
5578 return;
5579 }
5580
5581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5582 nl80211_mlme_mcgrp.id, gfp);
5583 return;
5584
5585 nla_put_failure:
5586 genlmsg_cancel(msg, hdr);
5587 nlmsg_free(msg);
5588}
5589
5590void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
5591 struct net_device *netdev, u64 cookie,
5592 struct ieee80211_channel *chan,
5593 enum nl80211_channel_type channel_type,
5594 unsigned int duration, gfp_t gfp)
5595{
5596 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
5597 rdev, netdev, cookie, chan,
5598 channel_type, duration, gfp);
5599}
5600
5601void nl80211_send_remain_on_channel_cancel(
5602 struct cfg80211_registered_device *rdev, struct net_device *netdev,
5603 u64 cookie, struct ieee80211_channel *chan,
5604 enum nl80211_channel_type channel_type, gfp_t gfp)
5605{
5606 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
5607 rdev, netdev, cookie, chan,
5608 channel_type, 0, gfp);
5609}
5610
98b62183
JB		 5611void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
5612 struct net_device *dev, const u8 *mac_addr,
5613 struct station_info *sinfo, gfp_t gfp)
5614{
5615 struct sk_buff *msg;
5616
5617 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
5618 if (!msg)
5619 return;
5620
5621 if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) {
5622 nlmsg_free(msg);
5623 return;
5624 }
5625
5626 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
5627 nl80211_mlme_mcgrp.id, gfp);
5628}
5629
026331c4
JM		 5630int nl80211_send_action(struct cfg80211_registered_device *rdev,
5631 struct net_device *netdev, u32 nlpid,
5632 int freq, const u8 *buf, size_t len, gfp_t gfp)
5633{
5634 struct sk_buff *msg;
5635 void *hdr;
5636 int err;
5637
5638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5639 if (!msg)
5640 return -ENOMEM;
5641
5642 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION);
5643 if (!hdr) {
5644 nlmsg_free(msg);
5645 return -ENOMEM;
5646 }
5647
5648 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5649 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
5651 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5652
5653 err = genlmsg_end(msg, hdr);
5654 if (err < 0) {
5655 nlmsg_free(msg);
5656 return err;
5657 }
5658
5659 err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
5660 if (err < 0)
5661 return err;
5662 return 0;
5663
5664 nla_put_failure:
5665 genlmsg_cancel(msg, hdr);
5666 nlmsg_free(msg);
5667 return -ENOBUFS;
5668}
5669
5670void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev,
5671 struct net_device *netdev, u64 cookie,
5672 const u8 *buf, size_t len, bool ack,
5673 gfp_t gfp)
5674{
5675 struct sk_buff *msg;
5676 void *hdr;
5677
5678 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
5679 if (!msg)
5680 return;
5681
5682 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS);
5683 if (!hdr) {
5684 nlmsg_free(msg);
5685 return;
5686 }
5687
5688 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
5689 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
5690 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
5691 NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie);
5692 if (ack)
5693 NLA_PUT_FLAG(msg, NL80211_ATTR_ACK);
5694
5695 if (genlmsg_end(msg, hdr) < 0) {
5696 nlmsg_free(msg);
5697 return;
5698 }
5699
5700 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
5701 return;
5702
5703 nla_put_failure:
5704 genlmsg_cancel(msg, hdr);
5705 nlmsg_free(msg);
5706}
5707
5708static int nl80211_netlink_notify(struct notifier_block * nb,
5709 unsigned long state,
5710 void *_notify)
5711{
5712 struct netlink_notify *notify = _notify;
5713 struct cfg80211_registered_device *rdev;
5714 struct wireless_dev *wdev;
5715
5716 if (state != NETLINK_URELEASE)
5717 return NOTIFY_DONE;
5718
5719 rcu_read_lock();
5720
5721 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list)
5722 list_for_each_entry_rcu(wdev, &rdev->netdev_list, list)
5723 cfg80211_mlme_unregister_actions(wdev, notify->pid);
5724
5725 rcu_read_unlock();
5726
5727 return NOTIFY_DONE;
5728}
5729
5730static struct notifier_block nl80211_netlink_notifier = {
5731 .notifier_call = nl80211_netlink_notify,
5732};
5733
55682965
JB		 5734/* initialisation/exit functions */
5735
5736int nl80211_init(void)
5737{
0d63cbb5 5738 int err;
55682965 5739
0d63cbb5
MM		 5740 err = genl_register_family_with_ops(&nl80211_fam,
5741 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 5742 if (err)
5743 return err;
5744
55682965
JB		 5745 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
5746 if (err)
5747 goto err_out;
5748
2a519311
JB		 5749 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
5750 if (err)
5751 goto err_out;
5752
73d54c9e
LR		 5753 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
5754 if (err)
5755 goto err_out;
5756
6039f6d2
JM		 5757 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
5758 if (err)
5759 goto err_out;
5760
aff89a9b
JB		 5761#ifdef CONFIG_NL80211_TESTMODE
5762 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
5763 if (err)
5764 goto err_out;
5765#endif
5766
026331c4
JM		 5767 err = netlink_register_notifier(&nl80211_netlink_notifier);
5768 if (err)
5769 goto err_out;
5770
55682965
JB		 5771 return 0;
5772 err_out:
5773 genl_unregister_family(&nl80211_fam);
5774 return err;
5775}
5776
5777void nl80211_exit(void)
5778{
026331c4 5779 netlink_unregister_notifier(&nl80211_netlink_notifier);
55682965
JB		 5780 genl_unregister_family(&nl80211_fam);
5781}
kernel source for telekom puls (alcatel/mediatek)