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sh_eth: Remove references to BUS_ID_SIZE, use MII_BUS_ID_SIZE instead.
[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 *
08645126 4 * Copyright 2006-2009 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>
55682965
JB		 17#include <net/genetlink.h>
18#include <net/cfg80211.h>
19#include "core.h"
20#include "nl80211.h"
b2e1b302 21#include "reg.h"
55682965
JB		 22
23/* the netlink family */
24static struct genl_family nl80211_fam = {
25 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
26 .name = "nl80211", /* have users key off the name instead */
27 .hdrsize = 0, /* no private header */
28 .version = 1, /* no particular meaning now */
29 .maxattr = NL80211_ATTR_MAX,
30};
31
32/* internal helper: get drv and dev */
bba95fef 33static int get_drv_dev_by_info_ifindex(struct nlattr **attrs,
55682965
JB		 34 struct cfg80211_registered_device **drv,
35 struct net_device **dev)
36{
37 int ifindex;
38
bba95fef 39 if (!attrs[NL80211_ATTR_IFINDEX])
55682965
JB		 40 return -EINVAL;
41
bba95fef 42 ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
55682965
JB		 43 *dev = dev_get_by_index(&init_net, ifindex);
44 if (!*dev)
45 return -ENODEV;
46
47 *drv = cfg80211_get_dev_from_ifindex(ifindex);
48 if (IS_ERR(*drv)) {
49 dev_put(*dev);
50 return PTR_ERR(*drv);
51 }
52
53 return 0;
54}
55
56/* policy for the attributes */
57static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
58 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
59 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
60 .len = BUS_ID_SIZE-1 },
31888487 61 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
72bdcf34 62 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
094d05dc 63 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
b9a5f8ca
JM		 64 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
65 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
66 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
67 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
55682965
JB		 68
69 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
70 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
71 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 72
73 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
74
75 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
76 .len = WLAN_MAX_KEY_LEN },
77 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
78 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
79 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
9f26a952 80 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 },
ed1b6cc7
JB		 81
82 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
83 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
84 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
85 .len = IEEE80211_MAX_DATA_LEN },
86 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
87 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 88 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
89 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
90 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
91 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
92 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 93 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 94 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 95 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 96 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
97 .len = IEEE80211_MAX_MESH_ID_LEN },
98 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 99
b2e1b302
LR		 100 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
101 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
102
9f1ba906
JM		 103 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
104 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
105 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 106 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
107 .len = NL80211_MAX_SUPP_RATES },
36aedc90 108
93da9cc1 109 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
110
36aedc90
JM		 111 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
112 .len = NL80211_HT_CAPABILITY_LEN },
9aed3cc1
JM		 113
114 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
115 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
116 .len = IEEE80211_MAX_DATA_LEN },
2a519311
JB		 117 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
118 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
636a5d36
JM		 119
120 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
121 .len = IEEE80211_MAX_SSID_LEN },
122 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
123 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
04a773ad 124 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
1965c853 125 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
dc6382ce 126 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
eccb8e8f
JB		 127 [NL80211_ATTR_STA_FLAGS2] = {
128 .len = sizeof(struct nl80211_sta_flag_update),
129 },
3f77316c 130 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
55682965
JB		 131};
132
f4a11bb0
JB		 133/* IE validation */
134static bool is_valid_ie_attr(const struct nlattr *attr)
135{
136 const u8 *pos;
137 int len;
138
139 if (!attr)
140 return true;
141
142 pos = nla_data(attr);
143 len = nla_len(attr);
144
145 while (len) {
146 u8 elemlen;
147
148 if (len < 2)
149 return false;
150 len -= 2;
151
152 elemlen = pos[1];
153 if (elemlen > len)
154 return false;
155
156 len -= elemlen;
157 pos += 2 + elemlen;
158 }
159
160 return true;
161}
162
55682965
JB		 163/* message building helper */
164static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
165 int flags, u8 cmd)
166{
167 /* since there is no private header just add the generic one */
168 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
169}
170
5dab3b8a
LR		 171static int nl80211_msg_put_channel(struct sk_buff *msg,
172 struct ieee80211_channel *chan)
173{
174 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
175 chan->center_freq);
176
177 if (chan->flags & IEEE80211_CHAN_DISABLED)
178 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
179 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
180 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
181 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
182 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
183 if (chan->flags & IEEE80211_CHAN_RADAR)
184 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
185
186 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
187 DBM_TO_MBM(chan->max_power));
188
189 return 0;
190
191 nla_put_failure:
192 return -ENOBUFS;
193}
194
55682965
JB		 195/* netlink command implementations */
196
197static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
198 struct cfg80211_registered_device *dev)
199{
200 void *hdr;
ee688b00
JB		 201 struct nlattr *nl_bands, *nl_band;
202 struct nlattr *nl_freqs, *nl_freq;
203 struct nlattr *nl_rates, *nl_rate;
f59ac048 204 struct nlattr *nl_modes;
8fdc621d 205 struct nlattr *nl_cmds;
ee688b00
JB		 206 enum ieee80211_band band;
207 struct ieee80211_channel *chan;
208 struct ieee80211_rate *rate;
209 int i;
f59ac048 210 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 211
212 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
213 if (!hdr)
214 return -1;
215
b5850a7a 216 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx);
55682965 217 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
b9a5f8ca
JM		 218
219 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
220 dev->wiphy.retry_short);
221 NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
222 dev->wiphy.retry_long);
223 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
224 dev->wiphy.frag_threshold);
225 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
226 dev->wiphy.rts_threshold);
227
2a519311
JB		 228 NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
229 dev->wiphy.max_scan_ssids);
18a83659
JB		 230 NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
231 dev->wiphy.max_scan_ie_len);
ee688b00 232
25e47c18
JB		 233 NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES,
234 sizeof(u32) * dev->wiphy.n_cipher_suites,
235 dev->wiphy.cipher_suites);
236
f59ac048
LR		 237 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
238 if (!nl_modes)
239 goto nla_put_failure;
240
241 i = 0;
242 while (ifmodes) {
243 if (ifmodes & 1)
244 NLA_PUT_FLAG(msg, i);
245 ifmodes >>= 1;
246 i++;
247 }
248
249 nla_nest_end(msg, nl_modes);
250
ee688b00
JB		 251 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
252 if (!nl_bands)
253 goto nla_put_failure;
254
255 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
256 if (!dev->wiphy.bands[band])
257 continue;
258
259 nl_band = nla_nest_start(msg, band);
260 if (!nl_band)
261 goto nla_put_failure;
262
d51626df
JB		 263 /* add HT info */
264 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
265 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
266 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
267 &dev->wiphy.bands[band]->ht_cap.mcs);
268 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
269 dev->wiphy.bands[band]->ht_cap.cap);
270 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
271 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
272 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
273 dev->wiphy.bands[band]->ht_cap.ampdu_density);
274 }
275
ee688b00
JB		 276 /* add frequencies */
277 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
278 if (!nl_freqs)
279 goto nla_put_failure;
280
281 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
282 nl_freq = nla_nest_start(msg, i);
283 if (!nl_freq)
284 goto nla_put_failure;
285
286 chan = &dev->wiphy.bands[band]->channels[i];
5dab3b8a
LR		 287
288 if (nl80211_msg_put_channel(msg, chan))
289 goto nla_put_failure;
e2f367f2 290
ee688b00
JB		 291 nla_nest_end(msg, nl_freq);
292 }
293
294 nla_nest_end(msg, nl_freqs);
295
296 /* add bitrates */
297 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
298 if (!nl_rates)
299 goto nla_put_failure;
300
301 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
302 nl_rate = nla_nest_start(msg, i);
303 if (!nl_rate)
304 goto nla_put_failure;
305
306 rate = &dev->wiphy.bands[band]->bitrates[i];
307 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
308 rate->bitrate);
309 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
310 NLA_PUT_FLAG(msg,
311 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
312
313 nla_nest_end(msg, nl_rate);
314 }
315
316 nla_nest_end(msg, nl_rates);
317
318 nla_nest_end(msg, nl_band);
319 }
320 nla_nest_end(msg, nl_bands);
321
8fdc621d
JB		 322 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
323 if (!nl_cmds)
324 goto nla_put_failure;
325
326 i = 0;
327#define CMD(op, n) \
328 do { \
329 if (dev->ops->op) { \
330 i++; \
331 NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
332 } \
333 } while (0)
334
335 CMD(add_virtual_intf, NEW_INTERFACE);
336 CMD(change_virtual_intf, SET_INTERFACE);
337 CMD(add_key, NEW_KEY);
338 CMD(add_beacon, NEW_BEACON);
339 CMD(add_station, NEW_STATION);
340 CMD(add_mpath, NEW_MPATH);
341 CMD(set_mesh_params, SET_MESH_PARAMS);
342 CMD(change_bss, SET_BSS);
636a5d36
JM		 343 CMD(auth, AUTHENTICATE);
344 CMD(assoc, ASSOCIATE);
345 CMD(deauth, DEAUTHENTICATE);
346 CMD(disassoc, DISASSOCIATE);
04a773ad 347 CMD(join_ibss, JOIN_IBSS);
8fdc621d
JB		 348
349#undef CMD
350 nla_nest_end(msg, nl_cmds);
351
55682965
JB		 352 return genlmsg_end(msg, hdr);
353
354 nla_put_failure:
bc3ed28c
TG		 355 genlmsg_cancel(msg, hdr);
356 return -EMSGSIZE;
55682965
JB		 357}
358
359static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
360{
361 int idx = 0;
362 int start = cb->args[0];
363 struct cfg80211_registered_device *dev;
364
a1794390 365 mutex_lock(&cfg80211_mutex);
55682965 366 list_for_each_entry(dev, &cfg80211_drv_list, list) {
b4637271 367 if (++idx <= start)
55682965
JB		 368 continue;
369 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
370 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 371 dev) < 0) {
372 idx--;
55682965 373 break;
b4637271 374 }
55682965 375 }
a1794390 376 mutex_unlock(&cfg80211_mutex);
55682965
JB		 377
378 cb->args[0] = idx;
379
380 return skb->len;
381}
382
383static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
384{
385 struct sk_buff *msg;
386 struct cfg80211_registered_device *dev;
387
388 dev = cfg80211_get_dev_from_info(info);
389 if (IS_ERR(dev))
390 return PTR_ERR(dev);
391
fd2120ca 392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 393 if (!msg)
394 goto out_err;
395
396 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
397 goto out_free;
398
399 cfg80211_put_dev(dev);
400
401 return genlmsg_unicast(msg, info->snd_pid);
402
403 out_free:
404 nlmsg_free(msg);
405 out_err:
406 cfg80211_put_dev(dev);
407 return -ENOBUFS;
408}
409
31888487
JM		 410static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
411 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
412 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
413 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
414 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
415 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
416};
417
418static int parse_txq_params(struct nlattr *tb[],
419 struct ieee80211_txq_params *txq_params)
420{
421 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
422 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
423 !tb[NL80211_TXQ_ATTR_AIFS])
424 return -EINVAL;
425
426 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
427 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
428 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
429 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
430 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
431
432 return 0;
433}
434
55682965
JB		 435static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
436{
437 struct cfg80211_registered_device *rdev;
31888487
JM		 438 int result = 0, rem_txq_params = 0;
439 struct nlattr *nl_txq_params;
b9a5f8ca
JM		 440 u32 changed;
441 u8 retry_short = 0, retry_long = 0;
442 u32 frag_threshold = 0, rts_threshold = 0;
55682965 443
4bbf4d56 444 rtnl_lock();
55682965 445
4bbf4d56
JB		 446 mutex_lock(&cfg80211_mutex);
447
448 rdev = __cfg80211_drv_from_info(info);
449 if (IS_ERR(rdev)) {
450 result = PTR_ERR(rdev);
451 goto unlock;
452 }
453
454 mutex_lock(&rdev->mtx);
455
456 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
31888487
JM		 457 result = cfg80211_dev_rename(
458 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
4bbf4d56
JB		 459
460 mutex_unlock(&cfg80211_mutex);
461
462 if (result)
463 goto bad_res;
31888487
JM		 464
465 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
466 struct ieee80211_txq_params txq_params;
467 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
468
469 if (!rdev->ops->set_txq_params) {
470 result = -EOPNOTSUPP;
471 goto bad_res;
472 }
473
474 nla_for_each_nested(nl_txq_params,
475 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
476 rem_txq_params) {
477 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
478 nla_data(nl_txq_params),
479 nla_len(nl_txq_params),
480 txq_params_policy);
481 result = parse_txq_params(tb, &txq_params);
482 if (result)
483 goto bad_res;
484
485 result = rdev->ops->set_txq_params(&rdev->wiphy,
486 &txq_params);
487 if (result)
488 goto bad_res;
489 }
490 }
55682965 491
72bdcf34 492 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
094d05dc 493 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
72bdcf34 494 struct ieee80211_channel *chan;
306d6112 495 struct ieee80211_sta_ht_cap *ht_cap;
294196ab 496 u32 freq;
72bdcf34
JM		 497
498 if (!rdev->ops->set_channel) {
499 result = -EOPNOTSUPP;
500 goto bad_res;
501 }
502
306d6112
JB		 503 result = -EINVAL;
504
094d05dc
S		 505 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
506 channel_type = nla_get_u32(info->attrs[
507 NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
508 if (channel_type != NL80211_CHAN_NO_HT &&
509 channel_type != NL80211_CHAN_HT20 &&
510 channel_type != NL80211_CHAN_HT40PLUS &&
511 channel_type != NL80211_CHAN_HT40MINUS)
72bdcf34 512 goto bad_res;
72bdcf34
JM		 513 }
514
515 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
516 chan = ieee80211_get_channel(&rdev->wiphy, freq);
306d6112
JB		 517
518 /* Primary channel not allowed */
519 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
72bdcf34 520 goto bad_res;
306d6112 521
294196ab
LR		 522 if (channel_type == NL80211_CHAN_HT40MINUS &&
523 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS))
306d6112 524 goto bad_res;
294196ab
LR		 525 else if (channel_type == NL80211_CHAN_HT40PLUS &&
526 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS))
306d6112
JB		 527 goto bad_res;
528
294196ab
LR		 529 /*
530 * At this point we know if that if HT40 was requested
531 * we are allowed to use it and the extension channel
532 * exists.
533 */
306d6112 534
294196ab 535 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
306d6112 536
294196ab
LR		 537 /* no HT capabilities or intolerant */
538 if (channel_type != NL80211_CHAN_NO_HT) {
539 if (!ht_cap->ht_supported)
540 goto bad_res;
306d6112
JB		 541 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
542 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
543 goto bad_res;
72bdcf34
JM		 544 }
545
546 result = rdev->ops->set_channel(&rdev->wiphy, chan,
094d05dc 547 channel_type);
72bdcf34
JM		 548 if (result)
549 goto bad_res;
550 }
551
b9a5f8ca
JM		 552 changed = 0;
553
554 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
555 retry_short = nla_get_u8(
556 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
557 if (retry_short == 0) {
558 result = -EINVAL;
559 goto bad_res;
560 }
561 changed |= WIPHY_PARAM_RETRY_SHORT;
562 }
563
564 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
565 retry_long = nla_get_u8(
566 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
567 if (retry_long == 0) {
568 result = -EINVAL;
569 goto bad_res;
570 }
571 changed |= WIPHY_PARAM_RETRY_LONG;
572 }
573
574 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
575 frag_threshold = nla_get_u32(
576 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
577 if (frag_threshold < 256) {
578 result = -EINVAL;
579 goto bad_res;
580 }
581 if (frag_threshold != (u32) -1) {
582 /*
583 * Fragments (apart from the last one) are required to
584 * have even length. Make the fragmentation code
585 * simpler by stripping LSB should someone try to use
586 * odd threshold value.
587 */
588 frag_threshold &= ~0x1;
589 }
590 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
591 }
592
593 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
594 rts_threshold = nla_get_u32(
595 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
596 changed |= WIPHY_PARAM_RTS_THRESHOLD;
597 }
598
599 if (changed) {
600 u8 old_retry_short, old_retry_long;
601 u32 old_frag_threshold, old_rts_threshold;
602
603 if (!rdev->ops->set_wiphy_params) {
604 result = -EOPNOTSUPP;
605 goto bad_res;
606 }
607
608 old_retry_short = rdev->wiphy.retry_short;
609 old_retry_long = rdev->wiphy.retry_long;
610 old_frag_threshold = rdev->wiphy.frag_threshold;
611 old_rts_threshold = rdev->wiphy.rts_threshold;
612
613 if (changed & WIPHY_PARAM_RETRY_SHORT)
614 rdev->wiphy.retry_short = retry_short;
615 if (changed & WIPHY_PARAM_RETRY_LONG)
616 rdev->wiphy.retry_long = retry_long;
617 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
618 rdev->wiphy.frag_threshold = frag_threshold;
619 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
620 rdev->wiphy.rts_threshold = rts_threshold;
621
622 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
623 if (result) {
624 rdev->wiphy.retry_short = old_retry_short;
625 rdev->wiphy.retry_long = old_retry_long;
626 rdev->wiphy.frag_threshold = old_frag_threshold;
627 rdev->wiphy.rts_threshold = old_rts_threshold;
628 }
629 }
72bdcf34 630
306d6112 631 bad_res:
4bbf4d56
JB		 632 mutex_unlock(&rdev->mtx);
633 unlock:
634 rtnl_unlock();
55682965
JB		 635 return result;
636}
637
638
639static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
d726405a 640 struct cfg80211_registered_device *rdev,
55682965
JB		 641 struct net_device *dev)
642{
643 void *hdr;
644
645 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
646 if (!hdr)
647 return -1;
648
649 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
d726405a 650 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
55682965 651 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 652 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
55682965
JB		 653 return genlmsg_end(msg, hdr);
654
655 nla_put_failure:
bc3ed28c
TG		 656 genlmsg_cancel(msg, hdr);
657 return -EMSGSIZE;
55682965
JB		 658}
659
660static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
661{
662 int wp_idx = 0;
663 int if_idx = 0;
664 int wp_start = cb->args[0];
665 int if_start = cb->args[1];
666 struct cfg80211_registered_device *dev;
667 struct wireless_dev *wdev;
668
a1794390 669 mutex_lock(&cfg80211_mutex);
55682965 670 list_for_each_entry(dev, &cfg80211_drv_list, list) {
bba95fef
JB		 671 if (wp_idx < wp_start) {
672 wp_idx++;
55682965 673 continue;
bba95fef 674 }
55682965
JB		 675 if_idx = 0;
676
677 mutex_lock(&dev->devlist_mtx);
678 list_for_each_entry(wdev, &dev->netdev_list, list) {
bba95fef
JB		 679 if (if_idx < if_start) {
680 if_idx++;
55682965 681 continue;
bba95fef 682 }
55682965
JB		 683 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
684 cb->nlh->nlmsg_seq, NLM_F_MULTI,
d726405a 685 dev, wdev->netdev) < 0) {
bba95fef
JB		 686 mutex_unlock(&dev->devlist_mtx);
687 goto out;
688 }
689 if_idx++;
55682965
JB		 690 }
691 mutex_unlock(&dev->devlist_mtx);
bba95fef
JB		 692
693 wp_idx++;
55682965 694 }
bba95fef 695 out:
a1794390 696 mutex_unlock(&cfg80211_mutex);
55682965
JB		 697
698 cb->args[0] = wp_idx;
699 cb->args[1] = if_idx;
700
701 return skb->len;
702}
703
704static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
705{
706 struct sk_buff *msg;
707 struct cfg80211_registered_device *dev;
708 struct net_device *netdev;
709 int err;
710
bba95fef 711 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
55682965
JB		 712 if (err)
713 return err;
714
fd2120ca 715 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 716 if (!msg)
717 goto out_err;
718
d726405a
JB		 719 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
720 dev, netdev) < 0)
55682965
JB		 721 goto out_free;
722
723 dev_put(netdev);
724 cfg80211_put_dev(dev);
725
726 return genlmsg_unicast(msg, info->snd_pid);
727
728 out_free:
729 nlmsg_free(msg);
730 out_err:
731 dev_put(netdev);
732 cfg80211_put_dev(dev);
733 return -ENOBUFS;
734}
735
66f7ac50
MW		 736static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
737 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
738 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
739 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
740 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
741 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
742};
743
744static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
745{
746 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
747 int flag;
748
749 *mntrflags = 0;
750
751 if (!nla)
752 return -EINVAL;
753
754 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
755 nla, mntr_flags_policy))
756 return -EINVAL;
757
758 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
759 if (flags[flag])
760 *mntrflags |= (1<<flag);
761
762 return 0;
763}
764
55682965
JB		 765static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
766{
767 struct cfg80211_registered_device *drv;
2ec600d6 768 struct vif_params params;
55682965 769 int err, ifindex;
04a773ad 770 enum nl80211_iftype otype, ntype;
55682965 771 struct net_device *dev;
92ffe055 772 u32 _flags, *flags = NULL;
ac7f9cfa 773 bool change = false;
55682965 774
2ec600d6
LCC		 775 memset(&params, 0, sizeof(params));
776
3b85875a
JB		 777 rtnl_lock();
778
bba95fef 779 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965 780 if (err)
3b85875a
JB		 781 goto unlock_rtnl;
782
55682965 783 ifindex = dev->ifindex;
04a773ad 784 otype = ntype = dev->ieee80211_ptr->iftype;
55682965
JB		 785 dev_put(dev);
786
723b038d 787 if (info->attrs[NL80211_ATTR_IFTYPE]) {
ac7f9cfa 788 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
04a773ad 789 if (otype != ntype)
ac7f9cfa 790 change = true;
04a773ad 791 if (ntype > NL80211_IFTYPE_MAX) {
ac7f9cfa 792 err = -EINVAL;
723b038d 793 goto unlock;
ac7f9cfa 794 }
723b038d
JB		 795 }
796
f59ac048 797 if (!drv->ops->change_virtual_intf ||
04a773ad 798 !(drv->wiphy.interface_modes & (1 << ntype))) {
55682965
JB		 799 err = -EOPNOTSUPP;
800 goto unlock;
801 }
802
92ffe055 803 if (info->attrs[NL80211_ATTR_MESH_ID]) {
04a773ad 804 if (ntype != NL80211_IFTYPE_MESH_POINT) {
92ffe055
JB		 805 err = -EINVAL;
806 goto unlock;
807 }
2ec600d6
LCC		 808 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
809 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
ac7f9cfa 810 change = true;
2ec600d6
LCC		 811 }
812
92ffe055 813 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
04a773ad 814 if (ntype != NL80211_IFTYPE_MONITOR) {
92ffe055
JB		 815 err = -EINVAL;
816 goto unlock;
817 }
818 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
819 &_flags);
ac7f9cfa
JB		 820 if (err)
821 goto unlock;
822
823 flags = &_flags;
824 change = true;
92ffe055 825 }
3b85875a 826
ac7f9cfa
JB		 827 if (change)
828 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
04a773ad 829 ntype, flags, &params);
ac7f9cfa
JB		 830 else
831 err = 0;
60719ffd
JB		 832
833 dev = __dev_get_by_index(&init_net, ifindex);
04a773ad
JB		 834 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != ntype));
835
836 if (dev && !err && (ntype != otype)) {
837 if (otype == NL80211_IFTYPE_ADHOC)
9d308429 838 cfg80211_clear_ibss(dev, false);
04a773ad 839 }
60719ffd 840
55682965
JB		 841 unlock:
842 cfg80211_put_dev(drv);
3b85875a
JB		 843 unlock_rtnl:
844 rtnl_unlock();
55682965
JB		 845 return err;
846}
847
848static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
849{
850 struct cfg80211_registered_device *drv;
2ec600d6 851 struct vif_params params;
55682965
JB		 852 int err;
853 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 854 u32 flags;
55682965 855
2ec600d6
LCC		 856 memset(&params, 0, sizeof(params));
857
55682965
JB		 858 if (!info->attrs[NL80211_ATTR_IFNAME])
859 return -EINVAL;
860
861 if (info->attrs[NL80211_ATTR_IFTYPE]) {
862 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
863 if (type > NL80211_IFTYPE_MAX)
864 return -EINVAL;
865 }
866
3b85875a
JB		 867 rtnl_lock();
868
55682965 869 drv = cfg80211_get_dev_from_info(info);
3b85875a
JB		 870 if (IS_ERR(drv)) {
871 err = PTR_ERR(drv);
872 goto unlock_rtnl;
873 }
55682965 874
f59ac048
LR		 875 if (!drv->ops->add_virtual_intf ||
876 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 877 err = -EOPNOTSUPP;
878 goto unlock;
879 }
880
2ec600d6
LCC		 881 if (type == NL80211_IFTYPE_MESH_POINT &&
882 info->attrs[NL80211_ATTR_MESH_ID]) {
883 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
884 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
885 }
886
66f7ac50
MW		 887 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
888 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
889 &flags);
55682965 890 err = drv->ops->add_virtual_intf(&drv->wiphy,
66f7ac50 891 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 892 type, err ? NULL : &flags, &params);
2ec600d6 893
55682965
JB		 894 unlock:
895 cfg80211_put_dev(drv);
3b85875a
JB		 896 unlock_rtnl:
897 rtnl_unlock();
55682965
JB		 898 return err;
899}
900
901static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
902{
903 struct cfg80211_registered_device *drv;
904 int ifindex, err;
905 struct net_device *dev;
906
3b85875a
JB		 907 rtnl_lock();
908
bba95fef 909 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965 910 if (err)
3b85875a 911 goto unlock_rtnl;
55682965
JB		 912 ifindex = dev->ifindex;
913 dev_put(dev);
914
915 if (!drv->ops->del_virtual_intf) {
916 err = -EOPNOTSUPP;
917 goto out;
918 }
919
55682965 920 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
55682965
JB		 921
922 out:
923 cfg80211_put_dev(drv);
3b85875a
JB		 924 unlock_rtnl:
925 rtnl_unlock();
55682965
JB		 926 return err;
927}
928
41ade00f
JB		 929struct get_key_cookie {
930 struct sk_buff *msg;
931 int error;
932};
933
934static void get_key_callback(void *c, struct key_params *params)
935{
936 struct get_key_cookie *cookie = c;
937
938 if (params->key)
939 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
940 params->key_len, params->key);
941
942 if (params->seq)
943 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
944 params->seq_len, params->seq);
945
946 if (params->cipher)
947 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
948 params->cipher);
949
950 return;
951 nla_put_failure:
952 cookie->error = 1;
953}
954
955static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
956{
957 struct cfg80211_registered_device *drv;
958 int err;
959 struct net_device *dev;
960 u8 key_idx = 0;
961 u8 *mac_addr = NULL;
962 struct get_key_cookie cookie = {
963 .error = 0,
964 };
965 void *hdr;
966 struct sk_buff *msg;
967
968 if (info->attrs[NL80211_ATTR_KEY_IDX])
969 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
970
3cfcf6ac 971 if (key_idx > 5)
41ade00f
JB		 972 return -EINVAL;
973
974 if (info->attrs[NL80211_ATTR_MAC])
975 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
976
3b85875a
JB		 977 rtnl_lock();
978
bba95fef 979 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f 980 if (err)
3b85875a 981 goto unlock_rtnl;
41ade00f
JB		 982
983 if (!drv->ops->get_key) {
984 err = -EOPNOTSUPP;
985 goto out;
986 }
987
fd2120ca 988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
41ade00f
JB		 989 if (!msg) {
990 err = -ENOMEM;
991 goto out;
992 }
993
994 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
995 NL80211_CMD_NEW_KEY);
996
997 if (IS_ERR(hdr)) {
998 err = PTR_ERR(hdr);
999 goto out;
1000 }
1001
1002 cookie.msg = msg;
1003
1004 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1005 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
1006 if (mac_addr)
1007 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1008
41ade00f
JB		 1009 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
1010 &cookie, get_key_callback);
41ade00f
JB		 1011
1012 if (err)
1013 goto out;
1014
1015 if (cookie.error)
1016 goto nla_put_failure;
1017
1018 genlmsg_end(msg, hdr);
1019 err = genlmsg_unicast(msg, info->snd_pid);
1020 goto out;
1021
1022 nla_put_failure:
1023 err = -ENOBUFS;
1024 nlmsg_free(msg);
1025 out:
1026 cfg80211_put_dev(drv);
1027 dev_put(dev);
3b85875a
JB		 1028 unlock_rtnl:
1029 rtnl_unlock();
1030
41ade00f
JB		 1031 return err;
1032}
1033
1034static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
1035{
1036 struct cfg80211_registered_device *drv;
1037 int err;
1038 struct net_device *dev;
1039 u8 key_idx;
3cfcf6ac
JM		 1040 int (*func)(struct wiphy *wiphy, struct net_device *netdev,
1041 u8 key_index);
41ade00f
JB		 1042
1043 if (!info->attrs[NL80211_ATTR_KEY_IDX])
1044 return -EINVAL;
1045
1046 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1047
3cfcf6ac
JM		 1048 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) {
1049 if (key_idx < 4 || key_idx > 5)
1050 return -EINVAL;
1051 } else if (key_idx > 3)
41ade00f
JB		 1052 return -EINVAL;
1053
1054 /* currently only support setting default key */
3cfcf6ac
JM		 1055 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] &&
1056 !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT])
41ade00f
JB		 1057 return -EINVAL;
1058
3b85875a
JB		 1059 rtnl_lock();
1060
bba95fef 1061 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f 1062 if (err)
3b85875a 1063 goto unlock_rtnl;
41ade00f 1064
3cfcf6ac
JM		 1065 if (info->attrs[NL80211_ATTR_KEY_DEFAULT])
1066 func = drv->ops->set_default_key;
1067 else
1068 func = drv->ops->set_default_mgmt_key;
1069
1070 if (!func) {
41ade00f
JB		 1071 err = -EOPNOTSUPP;
1072 goto out;
1073 }
1074
3cfcf6ac 1075 err = func(&drv->wiphy, dev, key_idx);
08645126
JB		 1076#ifdef CONFIG_WIRELESS_EXT
1077 if (!err) {
1078 if (func == drv->ops->set_default_key)
1079 dev->ieee80211_ptr->wext.default_key = key_idx;
1080 else
1081 dev->ieee80211_ptr->wext.default_mgmt_key = key_idx;
1082 }
1083#endif
41ade00f
JB		 1084
1085 out:
1086 cfg80211_put_dev(drv);
1087 dev_put(dev);
3b85875a
JB		 1088
1089 unlock_rtnl:
1090 rtnl_unlock();
1091
41ade00f
JB		 1092 return err;
1093}
1094
1095static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
1096{
1097 struct cfg80211_registered_device *drv;
25e47c18 1098 int err, i;
41ade00f
JB		 1099 struct net_device *dev;
1100 struct key_params params;
1101 u8 key_idx = 0;
1102 u8 *mac_addr = NULL;
1103
1104 memset(&params, 0, sizeof(params));
1105
1106 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
1107 return -EINVAL;
1108
1109 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
1110 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
1111 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
1112 }
1113
faa8fdc8
JM		 1114 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
1115 params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
1116 params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
1117 }
1118
41ade00f
JB		 1119 if (info->attrs[NL80211_ATTR_KEY_IDX])
1120 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1121
1122 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
1123
1124 if (info->attrs[NL80211_ATTR_MAC])
1125 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1126
08645126 1127 if (cfg80211_validate_key_settings(&params, key_idx, mac_addr))
41ade00f
JB		 1128 return -EINVAL;
1129
3b85875a
JB		 1130 rtnl_lock();
1131
bba95fef 1132 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f 1133 if (err)
3b85875a 1134 goto unlock_rtnl;
41ade00f 1135
25e47c18
JB		 1136 for (i = 0; i < drv->wiphy.n_cipher_suites; i++)
1137 if (params.cipher == drv->wiphy.cipher_suites[i])
1138 break;
1139 if (i == drv->wiphy.n_cipher_suites) {
1140 err = -EINVAL;
1141 goto out;
1142 }
1143
41ade00f
JB		 1144 if (!drv->ops->add_key) {
1145 err = -EOPNOTSUPP;
1146 goto out;
1147 }
1148
41ade00f 1149 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
41ade00f
JB		 1150
1151 out:
1152 cfg80211_put_dev(drv);
1153 dev_put(dev);
3b85875a
JB		 1154 unlock_rtnl:
1155 rtnl_unlock();
1156
41ade00f
JB		 1157 return err;
1158}
1159
1160static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
1161{
1162 struct cfg80211_registered_device *drv;
1163 int err;
1164 struct net_device *dev;
1165 u8 key_idx = 0;
1166 u8 *mac_addr = NULL;
1167
1168 if (info->attrs[NL80211_ATTR_KEY_IDX])
1169 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
1170
3cfcf6ac 1171 if (key_idx > 5)
41ade00f
JB		 1172 return -EINVAL;
1173
1174 if (info->attrs[NL80211_ATTR_MAC])
1175 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1176
3b85875a
JB		 1177 rtnl_lock();
1178
bba95fef 1179 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f 1180 if (err)
3b85875a 1181 goto unlock_rtnl;
41ade00f
JB		 1182
1183 if (!drv->ops->del_key) {
1184 err = -EOPNOTSUPP;
1185 goto out;
1186 }
1187
41ade00f 1188 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
41ade00f 1189
08645126
JB		 1190#ifdef CONFIG_WIRELESS_EXT
1191 if (!err) {
1192 if (key_idx == dev->ieee80211_ptr->wext.default_key)
1193 dev->ieee80211_ptr->wext.default_key = -1;
1194 else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key)
1195 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
1196 }
1197#endif
1198
41ade00f
JB		 1199 out:
1200 cfg80211_put_dev(drv);
1201 dev_put(dev);
3b85875a
JB		 1202
1203 unlock_rtnl:
1204 rtnl_unlock();
1205
41ade00f
JB		 1206 return err;
1207}
1208
ed1b6cc7
JB		 1209static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
1210{
1211 int (*call)(struct wiphy *wiphy, struct net_device *dev,
1212 struct beacon_parameters *info);
1213 struct cfg80211_registered_device *drv;
1214 int err;
1215 struct net_device *dev;
1216 struct beacon_parameters params;
1217 int haveinfo = 0;
1218
f4a11bb0
JB		 1219 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]))
1220 return -EINVAL;
1221
3b85875a
JB		 1222 rtnl_lock();
1223
bba95fef 1224 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7 1225 if (err)
3b85875a 1226 goto unlock_rtnl;
ed1b6cc7 1227
eec60b03
JM		 1228 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1229 err = -EOPNOTSUPP;
1230 goto out;
1231 }
1232
ed1b6cc7
JB		 1233 switch (info->genlhdr->cmd) {
1234 case NL80211_CMD_NEW_BEACON:
1235 /* these are required for NEW_BEACON */
1236 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
1237 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
1238 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1239 err = -EINVAL;
1240 goto out;
1241 }
1242
1243 call = drv->ops->add_beacon;
1244 break;
1245 case NL80211_CMD_SET_BEACON:
1246 call = drv->ops->set_beacon;
1247 break;
1248 default:
1249 WARN_ON(1);
1250 err = -EOPNOTSUPP;
1251 goto out;
1252 }
1253
1254 if (!call) {
1255 err = -EOPNOTSUPP;
1256 goto out;
1257 }
1258
1259 memset(&params, 0, sizeof(params));
1260
1261 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1262 params.interval =
1263 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1264 haveinfo = 1;
1265 }
1266
1267 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1268 params.dtim_period =
1269 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1270 haveinfo = 1;
1271 }
1272
1273 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1274 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1275 params.head_len =
1276 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1277 haveinfo = 1;
1278 }
1279
1280 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1281 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1282 params.tail_len =
1283 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1284 haveinfo = 1;
1285 }
1286
1287 if (!haveinfo) {
1288 err = -EINVAL;
1289 goto out;
1290 }
1291
ed1b6cc7 1292 err = call(&drv->wiphy, dev, &params);
ed1b6cc7
JB		 1293
1294 out:
1295 cfg80211_put_dev(drv);
1296 dev_put(dev);
3b85875a
JB		 1297 unlock_rtnl:
1298 rtnl_unlock();
1299
ed1b6cc7
JB		 1300 return err;
1301}
1302
1303static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1304{
1305 struct cfg80211_registered_device *drv;
1306 int err;
1307 struct net_device *dev;
1308
3b85875a
JB		 1309 rtnl_lock();
1310
bba95fef 1311 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7 1312 if (err)
3b85875a 1313 goto unlock_rtnl;
ed1b6cc7
JB		 1314
1315 if (!drv->ops->del_beacon) {
1316 err = -EOPNOTSUPP;
1317 goto out;
1318 }
1319
eec60b03
JM		 1320 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
1321 err = -EOPNOTSUPP;
1322 goto out;
1323 }
ed1b6cc7 1324 err = drv->ops->del_beacon(&drv->wiphy, dev);
ed1b6cc7
JB		 1325
1326 out:
1327 cfg80211_put_dev(drv);
1328 dev_put(dev);
3b85875a
JB		 1329 unlock_rtnl:
1330 rtnl_unlock();
1331
ed1b6cc7
JB		 1332 return err;
1333}
1334
5727ef1b
JB		 1335static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1336 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1337 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1338 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
0e46724a 1339 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
5727ef1b
JB		 1340};
1341
eccb8e8f
JB		 1342static int parse_station_flags(struct genl_info *info,
1343 struct station_parameters *params)
5727ef1b
JB		 1344{
1345 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
eccb8e8f 1346 struct nlattr *nla;
5727ef1b
JB		 1347 int flag;
1348
eccb8e8f
JB		 1349 /*
1350 * Try parsing the new attribute first so userspace
1351 * can specify both for older kernels.
1352 */
1353 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
1354 if (nla) {
1355 struct nl80211_sta_flag_update *sta_flags;
1356
1357 sta_flags = nla_data(nla);
1358 params->sta_flags_mask = sta_flags->mask;
1359 params->sta_flags_set = sta_flags->set;
1360 if ((params->sta_flags_mask |
1361 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
1362 return -EINVAL;
1363 return 0;
1364 }
1365
1366 /* if present, parse the old attribute */
5727ef1b 1367
eccb8e8f 1368 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
5727ef1b
JB		 1369 if (!nla)
1370 return 0;
1371
1372 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1373 nla, sta_flags_policy))
1374 return -EINVAL;
1375
eccb8e8f
JB		 1376 params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1;
1377 params->sta_flags_mask &= ~1;
5727ef1b
JB		 1378
1379 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1380 if (flags[flag])
eccb8e8f 1381 params->sta_flags_set |= (1<<flag);
5727ef1b
JB		 1382
1383 return 0;
1384}
1385
420e7fab
HR		 1386static u16 nl80211_calculate_bitrate(struct rate_info *rate)
1387{
1388 int modulation, streams, bitrate;
1389
1390 if (!(rate->flags & RATE_INFO_FLAGS_MCS))
1391 return rate->legacy;
1392
1393 /* the formula below does only work for MCS values smaller than 32 */
1394 if (rate->mcs >= 32)
1395 return 0;
1396
1397 modulation = rate->mcs & 7;
1398 streams = (rate->mcs >> 3) + 1;
1399
1400 bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ?
1401 13500000 : 6500000;
1402
1403 if (modulation < 4)
1404 bitrate *= (modulation + 1);
1405 else if (modulation == 4)
1406 bitrate *= (modulation + 2);
1407 else
1408 bitrate *= (modulation + 3);
1409
1410 bitrate *= streams;
1411
1412 if (rate->flags & RATE_INFO_FLAGS_SHORT_GI)
1413 bitrate = (bitrate / 9) * 10;
1414
1415 /* do NOT round down here */
1416 return (bitrate + 50000) / 100000;
1417}
1418
fd5b74dc
JB		 1419static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1420 int flags, struct net_device *dev,
2ec600d6 1421 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1422{
1423 void *hdr;
420e7fab
HR		 1424 struct nlattr *sinfoattr, *txrate;
1425 u16 bitrate;
fd5b74dc
JB		 1426
1427 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1428 if (!hdr)
1429 return -1;
1430
1431 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1432 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1433
2ec600d6
LCC		 1434 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1435 if (!sinfoattr)
fd5b74dc 1436 goto nla_put_failure;
2ec600d6
LCC		 1437 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1438 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1439 sinfo->inactive_time);
1440 if (sinfo->filled & STATION_INFO_RX_BYTES)
1441 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1442 sinfo->rx_bytes);
1443 if (sinfo->filled & STATION_INFO_TX_BYTES)
1444 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1445 sinfo->tx_bytes);
1446 if (sinfo->filled & STATION_INFO_LLID)
1447 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1448 sinfo->llid);
1449 if (sinfo->filled & STATION_INFO_PLID)
1450 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1451 sinfo->plid);
1452 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1453 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1454 sinfo->plink_state);
420e7fab
HR		 1455 if (sinfo->filled & STATION_INFO_SIGNAL)
1456 NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL,
1457 sinfo->signal);
1458 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
1459 txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
1460 if (!txrate)
1461 goto nla_put_failure;
1462
1463 /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */
1464 bitrate = nl80211_calculate_bitrate(&sinfo->txrate);
1465 if (bitrate > 0)
1466 NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
2ec600d6 1467
420e7fab
HR		 1468 if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
1469 NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
1470 sinfo->txrate.mcs);
1471 if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
1472 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
1473 if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
1474 NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
1475
1476 nla_nest_end(msg, txrate);
1477 }
98c8a60a
JM		 1478 if (sinfo->filled & STATION_INFO_RX_PACKETS)
1479 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
1480 sinfo->rx_packets);
1481 if (sinfo->filled & STATION_INFO_TX_PACKETS)
1482 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS,
1483 sinfo->tx_packets);
2ec600d6 1484 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1485
1486 return genlmsg_end(msg, hdr);
1487
1488 nla_put_failure:
bc3ed28c
TG		 1489 genlmsg_cancel(msg, hdr);
1490 return -EMSGSIZE;
fd5b74dc
JB		 1491}
1492
2ec600d6 1493static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1494 struct netlink_callback *cb)
2ec600d6 1495{
2ec600d6
LCC		 1496 struct station_info sinfo;
1497 struct cfg80211_registered_device *dev;
bba95fef 1498 struct net_device *netdev;
2ec600d6 1499 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 1500 int ifidx = cb->args[0];
1501 int sta_idx = cb->args[1];
2ec600d6 1502 int err;
2ec600d6 1503
bba95fef
JB		 1504 if (!ifidx) {
1505 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1506 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1507 nl80211_policy);
1508 if (err)
1509 return err;
2ec600d6 1510
bba95fef
JB		 1511 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1512 return -EINVAL;
2ec600d6 1513
bba95fef
JB		 1514 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1515 if (!ifidx)
1516 return -EINVAL;
2ec600d6 1517 }
2ec600d6 1518
3b85875a
JB		 1519 rtnl_lock();
1520
1521 netdev = __dev_get_by_index(&init_net, ifidx);
1522 if (!netdev) {
1523 err = -ENODEV;
1524 goto out_rtnl;
1525 }
2ec600d6 1526
bba95fef
JB		 1527 dev = cfg80211_get_dev_from_ifindex(ifidx);
1528 if (IS_ERR(dev)) {
1529 err = PTR_ERR(dev);
3b85875a 1530 goto out_rtnl;
bba95fef
JB		 1531 }
1532
1533 if (!dev->ops->dump_station) {
eec60b03 1534 err = -EOPNOTSUPP;
bba95fef
JB		 1535 goto out_err;
1536 }
1537
bba95fef
JB		 1538 while (1) {
1539 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1540 mac_addr, &sinfo);
1541 if (err == -ENOENT)
1542 break;
1543 if (err)
3b85875a 1544 goto out_err;
bba95fef
JB		 1545
1546 if (nl80211_send_station(skb,
1547 NETLINK_CB(cb->skb).pid,
1548 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1549 netdev, mac_addr,
1550 &sinfo) < 0)
1551 goto out;
1552
1553 sta_idx++;
1554 }
1555
1556
1557 out:
1558 cb->args[1] = sta_idx;
1559 err = skb->len;
bba95fef
JB		 1560 out_err:
1561 cfg80211_put_dev(dev);
3b85875a
JB		 1562 out_rtnl:
1563 rtnl_unlock();
bba95fef
JB		 1564
1565 return err;
2ec600d6 1566}
fd5b74dc 1567
5727ef1b
JB		 1568static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1569{
fd5b74dc
JB		 1570 struct cfg80211_registered_device *drv;
1571 int err;
1572 struct net_device *dev;
2ec600d6 1573 struct station_info sinfo;
fd5b74dc
JB		 1574 struct sk_buff *msg;
1575 u8 *mac_addr = NULL;
1576
2ec600d6 1577 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1578
1579 if (!info->attrs[NL80211_ATTR_MAC])
1580 return -EINVAL;
1581
1582 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1583
3b85875a
JB		 1584 rtnl_lock();
1585
bba95fef 1586 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
fd5b74dc 1587 if (err)
3b85875a 1588 goto out_rtnl;
fd5b74dc
JB		 1589
1590 if (!drv->ops->get_station) {
1591 err = -EOPNOTSUPP;
1592 goto out;
1593 }
1594
2ec600d6 1595 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
2ec600d6
LCC		 1596 if (err)
1597 goto out;
1598
fd2120ca 1599 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
fd5b74dc
JB		 1600 if (!msg)
1601 goto out;
1602
1603 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1604 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1605 goto out_free;
1606
1607 err = genlmsg_unicast(msg, info->snd_pid);
1608 goto out;
1609
1610 out_free:
1611 nlmsg_free(msg);
fd5b74dc
JB		 1612 out:
1613 cfg80211_put_dev(drv);
1614 dev_put(dev);
3b85875a
JB		 1615 out_rtnl:
1616 rtnl_unlock();
1617
fd5b74dc 1618 return err;
5727ef1b
JB		 1619}
1620
1621/*
1622 * Get vlan interface making sure it is on the right wiphy.
1623 */
1624static int get_vlan(struct nlattr *vlanattr,
1625 struct cfg80211_registered_device *rdev,
1626 struct net_device **vlan)
1627{
1628 *vlan = NULL;
1629
1630 if (vlanattr) {
1631 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1632 if (!*vlan)
1633 return -ENODEV;
1634 if (!(*vlan)->ieee80211_ptr)
1635 return -EINVAL;
1636 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1637 return -EINVAL;
1638 }
1639 return 0;
1640}
1641
1642static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1643{
1644 struct cfg80211_registered_device *drv;
1645 int err;
1646 struct net_device *dev;
1647 struct station_parameters params;
1648 u8 *mac_addr = NULL;
1649
1650 memset(&params, 0, sizeof(params));
1651
1652 params.listen_interval = -1;
1653
1654 if (info->attrs[NL80211_ATTR_STA_AID])
1655 return -EINVAL;
1656
1657 if (!info->attrs[NL80211_ATTR_MAC])
1658 return -EINVAL;
1659
1660 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1661
1662 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1663 params.supported_rates =
1664 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1665 params.supported_rates_len =
1666 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1667 }
1668
1669 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1670 params.listen_interval =
1671 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1672
36aedc90
JM		 1673 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1674 params.ht_capa =
1675 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1676
eccb8e8f 1677 if (parse_station_flags(info, &params))
5727ef1b
JB		 1678 return -EINVAL;
1679
2ec600d6
LCC		 1680 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1681 params.plink_action =
1682 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1683
3b85875a
JB		 1684 rtnl_lock();
1685
bba95fef 1686 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b 1687 if (err)
3b85875a 1688 goto out_rtnl;
5727ef1b
JB		 1689
1690 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1691 if (err)
1692 goto out;
1693
1694 if (!drv->ops->change_station) {
1695 err = -EOPNOTSUPP;
1696 goto out;
1697 }
1698
5727ef1b 1699 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 1700
1701 out:
1702 if (params.vlan)
1703 dev_put(params.vlan);
1704 cfg80211_put_dev(drv);
1705 dev_put(dev);
3b85875a
JB		 1706 out_rtnl:
1707 rtnl_unlock();
1708
5727ef1b
JB		 1709 return err;
1710}
1711
1712static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1713{
1714 struct cfg80211_registered_device *drv;
1715 int err;
1716 struct net_device *dev;
1717 struct station_parameters params;
1718 u8 *mac_addr = NULL;
1719
1720 memset(&params, 0, sizeof(params));
1721
1722 if (!info->attrs[NL80211_ATTR_MAC])
1723 return -EINVAL;
1724
1725 if (!info->attrs[NL80211_ATTR_STA_AID])
1726 return -EINVAL;
1727
1728 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1729 return -EINVAL;
1730
1731 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1732 return -EINVAL;
1733
1734 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1735 params.supported_rates =
1736 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1737 params.supported_rates_len =
1738 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1739 params.listen_interval =
1740 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
16f2e85d 1741 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
36aedc90
JM		 1742 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1743 params.ht_capa =
1744 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b 1745
eccb8e8f 1746 if (parse_station_flags(info, &params))
5727ef1b
JB		 1747 return -EINVAL;
1748
3b85875a
JB		 1749 rtnl_lock();
1750
bba95fef 1751 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b 1752 if (err)
3b85875a 1753 goto out_rtnl;
5727ef1b 1754
e80cf853
JB		 1755 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1756 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
1757 err = -EINVAL;
1758 goto out;
1759 }
1760
5727ef1b
JB		 1761 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1762 if (err)
1763 goto out;
1764
1765 if (!drv->ops->add_station) {
1766 err = -EOPNOTSUPP;
1767 goto out;
1768 }
1769
35a8efe1
JM		 1770 if (!netif_running(dev)) {
1771 err = -ENETDOWN;
1772 goto out;
1773 }
1774
5727ef1b 1775 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
5727ef1b
JB		 1776
1777 out:
1778 if (params.vlan)
1779 dev_put(params.vlan);
1780 cfg80211_put_dev(drv);
1781 dev_put(dev);
3b85875a
JB		 1782 out_rtnl:
1783 rtnl_unlock();
1784
5727ef1b
JB		 1785 return err;
1786}
1787
1788static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1789{
1790 struct cfg80211_registered_device *drv;
1791 int err;
1792 struct net_device *dev;
1793 u8 *mac_addr = NULL;
1794
1795 if (info->attrs[NL80211_ATTR_MAC])
1796 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1797
3b85875a
JB		 1798 rtnl_lock();
1799
bba95fef 1800 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b 1801 if (err)
3b85875a 1802 goto out_rtnl;
5727ef1b 1803
e80cf853
JB		 1804 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1805 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) {
1806 err = -EINVAL;
1807 goto out;
1808 }
1809
5727ef1b
JB		 1810 if (!drv->ops->del_station) {
1811 err = -EOPNOTSUPP;
1812 goto out;
1813 }
1814
5727ef1b 1815 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
5727ef1b
JB		 1816
1817 out:
1818 cfg80211_put_dev(drv);
1819 dev_put(dev);
3b85875a
JB		 1820 out_rtnl:
1821 rtnl_unlock();
1822
5727ef1b
JB		 1823 return err;
1824}
1825
2ec600d6
LCC		 1826static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1827 int flags, struct net_device *dev,
1828 u8 *dst, u8 *next_hop,
1829 struct mpath_info *pinfo)
1830{
1831 void *hdr;
1832 struct nlattr *pinfoattr;
1833
1834 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1835 if (!hdr)
1836 return -1;
1837
1838 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1839 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1840 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1841
1842 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1843 if (!pinfoattr)
1844 goto nla_put_failure;
1845 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1846 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1847 pinfo->frame_qlen);
1848 if (pinfo->filled & MPATH_INFO_DSN)
1849 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1850 pinfo->dsn);
1851 if (pinfo->filled & MPATH_INFO_METRIC)
1852 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1853 pinfo->metric);
1854 if (pinfo->filled & MPATH_INFO_EXPTIME)
1855 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1856 pinfo->exptime);
1857 if (pinfo->filled & MPATH_INFO_FLAGS)
1858 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1859 pinfo->flags);
1860 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1861 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1862 pinfo->discovery_timeout);
1863 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1864 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1865 pinfo->discovery_retries);
1866
1867 nla_nest_end(msg, pinfoattr);
1868
1869 return genlmsg_end(msg, hdr);
1870
1871 nla_put_failure:
bc3ed28c
TG		 1872 genlmsg_cancel(msg, hdr);
1873 return -EMSGSIZE;
2ec600d6
LCC		 1874}
1875
1876static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 1877 struct netlink_callback *cb)
2ec600d6 1878{
2ec600d6
LCC		 1879 struct mpath_info pinfo;
1880 struct cfg80211_registered_device *dev;
bba95fef 1881 struct net_device *netdev;
2ec600d6
LCC		 1882 u8 dst[ETH_ALEN];
1883 u8 next_hop[ETH_ALEN];
bba95fef
JB		 1884 int ifidx = cb->args[0];
1885 int path_idx = cb->args[1];
2ec600d6 1886 int err;
2ec600d6 1887
bba95fef
JB		 1888 if (!ifidx) {
1889 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1890 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1891 nl80211_policy);
1892 if (err)
1893 return err;
1894
1895 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1896 return -EINVAL;
1897
1898 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1899 if (!ifidx)
1900 return -EINVAL;
1901 }
1902
3b85875a
JB		 1903 rtnl_lock();
1904
1905 netdev = __dev_get_by_index(&init_net, ifidx);
1906 if (!netdev) {
1907 err = -ENODEV;
1908 goto out_rtnl;
1909 }
bba95fef
JB		 1910
1911 dev = cfg80211_get_dev_from_ifindex(ifidx);
1912 if (IS_ERR(dev)) {
1913 err = PTR_ERR(dev);
3b85875a 1914 goto out_rtnl;
bba95fef
JB		 1915 }
1916
1917 if (!dev->ops->dump_mpath) {
eec60b03 1918 err = -EOPNOTSUPP;
bba95fef
JB		 1919 goto out_err;
1920 }
1921
eec60b03
JM		 1922 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1923 err = -EOPNOTSUPP;
1924 goto out;
1925 }
1926
bba95fef
JB		 1927 while (1) {
1928 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1929 dst, next_hop, &pinfo);
1930 if (err == -ENOENT)
2ec600d6 1931 break;
bba95fef 1932 if (err)
3b85875a 1933 goto out_err;
2ec600d6 1934
bba95fef
JB		 1935 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1936 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1937 netdev, dst, next_hop,
1938 &pinfo) < 0)
1939 goto out;
2ec600d6 1940
bba95fef 1941 path_idx++;
2ec600d6 1942 }
2ec600d6 1943
2ec600d6 1944
bba95fef
JB		 1945 out:
1946 cb->args[1] = path_idx;
1947 err = skb->len;
bba95fef
JB		 1948 out_err:
1949 cfg80211_put_dev(dev);
3b85875a
JB		 1950 out_rtnl:
1951 rtnl_unlock();
bba95fef
JB		 1952
1953 return err;
2ec600d6
LCC		 1954}
1955
1956static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1957{
1958 struct cfg80211_registered_device *drv;
1959 int err;
1960 struct net_device *dev;
1961 struct mpath_info pinfo;
1962 struct sk_buff *msg;
1963 u8 *dst = NULL;
1964 u8 next_hop[ETH_ALEN];
1965
1966 memset(&pinfo, 0, sizeof(pinfo));
1967
1968 if (!info->attrs[NL80211_ATTR_MAC])
1969 return -EINVAL;
1970
1971 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1972
3b85875a
JB		 1973 rtnl_lock();
1974
bba95fef 1975 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6 1976 if (err)
3b85875a 1977 goto out_rtnl;
2ec600d6
LCC		 1978
1979 if (!drv->ops->get_mpath) {
1980 err = -EOPNOTSUPP;
1981 goto out;
1982 }
1983
eec60b03
JM		 1984 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
1985 err = -EOPNOTSUPP;
1986 goto out;
1987 }
1988
2ec600d6 1989 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
2ec600d6
LCC		 1990 if (err)
1991 goto out;
1992
fd2120ca 1993 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2ec600d6
LCC		 1994 if (!msg)
1995 goto out;
1996
1997 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1998 dev, dst, next_hop, &pinfo) < 0)
1999 goto out_free;
2000
2001 err = genlmsg_unicast(msg, info->snd_pid);
2002 goto out;
2003
2004 out_free:
2005 nlmsg_free(msg);
2ec600d6
LCC		 2006 out:
2007 cfg80211_put_dev(drv);
2008 dev_put(dev);
3b85875a
JB		 2009 out_rtnl:
2010 rtnl_unlock();
2011
2ec600d6
LCC		 2012 return err;
2013}
2014
2015static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
2016{
2017 struct cfg80211_registered_device *drv;
2018 int err;
2019 struct net_device *dev;
2020 u8 *dst = NULL;
2021 u8 *next_hop = NULL;
2022
2023 if (!info->attrs[NL80211_ATTR_MAC])
2024 return -EINVAL;
2025
2026 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2027 return -EINVAL;
2028
2029 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2030 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2031
3b85875a
JB		 2032 rtnl_lock();
2033
bba95fef 2034 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6 2035 if (err)
3b85875a 2036 goto out_rtnl;
2ec600d6
LCC		 2037
2038 if (!drv->ops->change_mpath) {
2039 err = -EOPNOTSUPP;
2040 goto out;
2041 }
2042
eec60b03
JM		 2043 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2044 err = -EOPNOTSUPP;
2045 goto out;
2046 }
2047
35a8efe1
JM		 2048 if (!netif_running(dev)) {
2049 err = -ENETDOWN;
2050 goto out;
2051 }
2052
2ec600d6 2053 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2054
2055 out:
2056 cfg80211_put_dev(drv);
2057 dev_put(dev);
3b85875a
JB		 2058 out_rtnl:
2059 rtnl_unlock();
2060
2ec600d6
LCC		 2061 return err;
2062}
2063static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
2064{
2065 struct cfg80211_registered_device *drv;
2066 int err;
2067 struct net_device *dev;
2068 u8 *dst = NULL;
2069 u8 *next_hop = NULL;
2070
2071 if (!info->attrs[NL80211_ATTR_MAC])
2072 return -EINVAL;
2073
2074 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
2075 return -EINVAL;
2076
2077 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2078 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
2079
3b85875a
JB		 2080 rtnl_lock();
2081
bba95fef 2082 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6 2083 if (err)
3b85875a 2084 goto out_rtnl;
2ec600d6
LCC		 2085
2086 if (!drv->ops->add_mpath) {
2087 err = -EOPNOTSUPP;
2088 goto out;
2089 }
2090
eec60b03
JM		 2091 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
2092 err = -EOPNOTSUPP;
2093 goto out;
2094 }
2095
35a8efe1
JM		 2096 if (!netif_running(dev)) {
2097 err = -ENETDOWN;
2098 goto out;
2099 }
2100
2ec600d6 2101 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
2ec600d6
LCC		 2102
2103 out:
2104 cfg80211_put_dev(drv);
2105 dev_put(dev);
3b85875a
JB		 2106 out_rtnl:
2107 rtnl_unlock();
2108
2ec600d6
LCC		 2109 return err;
2110}
2111
2112static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
2113{
2114 struct cfg80211_registered_device *drv;
2115 int err;
2116 struct net_device *dev;
2117 u8 *dst = NULL;
2118
2119 if (info->attrs[NL80211_ATTR_MAC])
2120 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
2121
3b85875a
JB		 2122 rtnl_lock();
2123
bba95fef 2124 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6 2125 if (err)
3b85875a 2126 goto out_rtnl;
2ec600d6
LCC		 2127
2128 if (!drv->ops->del_mpath) {
2129 err = -EOPNOTSUPP;
2130 goto out;
2131 }
2132
2ec600d6 2133 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
2ec600d6
LCC		 2134
2135 out:
2136 cfg80211_put_dev(drv);
2137 dev_put(dev);
3b85875a
JB		 2138 out_rtnl:
2139 rtnl_unlock();
2140
2ec600d6
LCC		 2141 return err;
2142}
2143
9f1ba906
JM		 2144static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
2145{
2146 struct cfg80211_registered_device *drv;
2147 int err;
2148 struct net_device *dev;
2149 struct bss_parameters params;
2150
2151 memset(&params, 0, sizeof(params));
2152 /* default to not changing parameters */
2153 params.use_cts_prot = -1;
2154 params.use_short_preamble = -1;
2155 params.use_short_slot_time = -1;
2156
2157 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
2158 params.use_cts_prot =
2159 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
2160 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
2161 params.use_short_preamble =
2162 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
2163 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
2164 params.use_short_slot_time =
2165 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 2166 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
2167 params.basic_rates =
2168 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2169 params.basic_rates_len =
2170 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
2171 }
9f1ba906 2172
3b85875a
JB		 2173 rtnl_lock();
2174
9f1ba906
JM		 2175 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2176 if (err)
3b85875a 2177 goto out_rtnl;
9f1ba906
JM		 2178
2179 if (!drv->ops->change_bss) {
2180 err = -EOPNOTSUPP;
2181 goto out;
2182 }
2183
eec60b03
JM		 2184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) {
2185 err = -EOPNOTSUPP;
2186 goto out;
2187 }
2188
9f1ba906 2189 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
9f1ba906
JM		 2190
2191 out:
2192 cfg80211_put_dev(drv);
2193 dev_put(dev);
3b85875a
JB		 2194 out_rtnl:
2195 rtnl_unlock();
2196
9f1ba906
JM		 2197 return err;
2198}
2199
b2e1b302
LR		 2200static const struct nla_policy
2201 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
2202 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
2203 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
2204 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
2205 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
2206 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
2207 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
2208};
2209
2210static int parse_reg_rule(struct nlattr *tb[],
2211 struct ieee80211_reg_rule *reg_rule)
2212{
2213 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
2214 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
2215
2216 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
2217 return -EINVAL;
2218 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
2219 return -EINVAL;
2220 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
2221 return -EINVAL;
2222 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
2223 return -EINVAL;
2224 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
2225 return -EINVAL;
2226
2227 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
2228
2229 freq_range->start_freq_khz =
2230 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
2231 freq_range->end_freq_khz =
2232 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
2233 freq_range->max_bandwidth_khz =
2234 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
2235
2236 power_rule->max_eirp =
2237 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
2238
2239 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
2240 power_rule->max_antenna_gain =
2241 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
2242
2243 return 0;
2244}
2245
2246static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
2247{
2248 int r;
2249 char *data = NULL;
2250
80778f18
LR		 2251 /*
2252 * You should only get this when cfg80211 hasn't yet initialized
2253 * completely when built-in to the kernel right between the time
2254 * window between nl80211_init() and regulatory_init(), if that is
2255 * even possible.
2256 */
2257 mutex_lock(&cfg80211_mutex);
2258 if (unlikely(!cfg80211_regdomain)) {
fe33eb39
LR		 2259 mutex_unlock(&cfg80211_mutex);
2260 return -EINPROGRESS;
80778f18 2261 }
fe33eb39 2262 mutex_unlock(&cfg80211_mutex);
80778f18 2263
fe33eb39
LR		 2264 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2265 return -EINVAL;
b2e1b302
LR		 2266
2267 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2268
2269#ifdef CONFIG_WIRELESS_OLD_REGULATORY
2270 /* We ignore world regdom requests with the old regdom setup */
fe33eb39
LR		 2271 if (is_world_regdom(data))
2272 return -EINVAL;
b2e1b302 2273#endif
fe33eb39
LR		 2274
2275 r = regulatory_hint_user(data);
2276
b2e1b302
LR		 2277 return r;
2278}
2279
93da9cc1 2280static int nl80211_get_mesh_params(struct sk_buff *skb,
2281 struct genl_info *info)
2282{
2283 struct cfg80211_registered_device *drv;
2284 struct mesh_config cur_params;
2285 int err;
2286 struct net_device *dev;
2287 void *hdr;
2288 struct nlattr *pinfoattr;
2289 struct sk_buff *msg;
2290
3b85875a
JB		 2291 rtnl_lock();
2292
93da9cc1 2293 /* Look up our device */
2294 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2295 if (err)
3b85875a 2296 goto out_rtnl;
93da9cc1 2297
f3f92586
JM		 2298 if (!drv->ops->get_mesh_params) {
2299 err = -EOPNOTSUPP;
2300 goto out;
2301 }
2302
93da9cc1 2303 /* Get the mesh params */
93da9cc1 2304 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
93da9cc1 2305 if (err)
2306 goto out;
2307
2308 /* Draw up a netlink message to send back */
fd2120ca 2309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
93da9cc1 2310 if (!msg) {
2311 err = -ENOBUFS;
2312 goto out;
2313 }
2314 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2315 NL80211_CMD_GET_MESH_PARAMS);
2316 if (!hdr)
2317 goto nla_put_failure;
2318 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
2319 if (!pinfoattr)
2320 goto nla_put_failure;
2321 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2322 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
2323 cur_params.dot11MeshRetryTimeout);
2324 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
2325 cur_params.dot11MeshConfirmTimeout);
2326 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
2327 cur_params.dot11MeshHoldingTimeout);
2328 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
2329 cur_params.dot11MeshMaxPeerLinks);
2330 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
2331 cur_params.dot11MeshMaxRetries);
2332 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
2333 cur_params.dot11MeshTTL);
2334 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
2335 cur_params.auto_open_plinks);
2336 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2337 cur_params.dot11MeshHWMPmaxPREQretries);
2338 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
2339 cur_params.path_refresh_time);
2340 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2341 cur_params.min_discovery_timeout);
2342 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2343 cur_params.dot11MeshHWMPactivePathTimeout);
2344 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2345 cur_params.dot11MeshHWMPpreqMinInterval);
2346 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2347 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
2348 nla_nest_end(msg, pinfoattr);
2349 genlmsg_end(msg, hdr);
2350 err = genlmsg_unicast(msg, info->snd_pid);
2351 goto out;
2352
3b85875a 2353 nla_put_failure:
93da9cc1 2354 genlmsg_cancel(msg, hdr);
2355 err = -EMSGSIZE;
3b85875a 2356 out:
93da9cc1 2357 /* Cleanup */
2358 cfg80211_put_dev(drv);
2359 dev_put(dev);
3b85875a
JB		 2360 out_rtnl:
2361 rtnl_unlock();
2362
93da9cc1 2363 return err;
2364}
2365
2366#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
2367do {\
2368 if (table[attr_num]) {\
2369 cfg.param = nla_fn(table[attr_num]); \
2370 mask |= (1 << (attr_num - 1)); \
2371 } \
2372} while (0);\
2373
2374static struct nla_policy
2375nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
2376 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
2377 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
2378 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
2379 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
2380 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
2381 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
2382 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
2383
2384 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
2385 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
2386 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
2387 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
2388 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
2389 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
2390};
2391
2392static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
2393{
2394 int err;
2395 u32 mask;
2396 struct cfg80211_registered_device *drv;
2397 struct net_device *dev;
2398 struct mesh_config cfg;
2399 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
2400 struct nlattr *parent_attr;
2401
2402 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
2403 if (!parent_attr)
2404 return -EINVAL;
2405 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
2406 parent_attr, nl80211_meshconf_params_policy))
2407 return -EINVAL;
2408
3b85875a
JB		 2409 rtnl_lock();
2410
93da9cc1 2411 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2412 if (err)
3b85875a 2413 goto out_rtnl;
93da9cc1 2414
f3f92586
JM		 2415 if (!drv->ops->set_mesh_params) {
2416 err = -EOPNOTSUPP;
2417 goto out;
2418 }
2419
93da9cc1 2420 /* This makes sure that there aren't more than 32 mesh config
2421 * parameters (otherwise our bitfield scheme would not work.) */
2422 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
2423
2424 /* Fill in the params struct */
2425 mask = 0;
2426 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
2427 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
2428 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
2429 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
2430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
2431 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
2432 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
2433 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
2434 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
2435 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
2436 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
2437 mask, NL80211_MESHCONF_TTL, nla_get_u8);
2438 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
2439 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
2440 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
2441 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
2442 nla_get_u8);
2443 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
2444 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
2445 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
2446 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
2447 nla_get_u16);
2448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
2449 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
2450 nla_get_u32);
2451 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
2452 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
2453 nla_get_u16);
2454 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2455 dot11MeshHWMPnetDiameterTraversalTime,
2456 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2457 nla_get_u16);
2458
2459 /* Apply changes */
93da9cc1 2460 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
93da9cc1 2461
f3f92586 2462 out:
93da9cc1 2463 /* cleanup */
2464 cfg80211_put_dev(drv);
2465 dev_put(dev);
3b85875a
JB		 2466 out_rtnl:
2467 rtnl_unlock();
2468
93da9cc1 2469 return err;
2470}
2471
2472#undef FILL_IN_MESH_PARAM_IF_SET
2473
f130347c
LR		 2474static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
2475{
2476 struct sk_buff *msg;
2477 void *hdr = NULL;
2478 struct nlattr *nl_reg_rules;
2479 unsigned int i;
2480 int err = -EINVAL;
2481
a1794390 2482 mutex_lock(&cfg80211_mutex);
f130347c
LR		 2483
2484 if (!cfg80211_regdomain)
2485 goto out;
2486
fd2120ca 2487 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
f130347c
LR		 2488 if (!msg) {
2489 err = -ENOBUFS;
2490 goto out;
2491 }
2492
2493 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2494 NL80211_CMD_GET_REG);
2495 if (!hdr)
2496 goto nla_put_failure;
2497
2498 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
2499 cfg80211_regdomain->alpha2);
2500
2501 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
2502 if (!nl_reg_rules)
2503 goto nla_put_failure;
2504
2505 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
2506 struct nlattr *nl_reg_rule;
2507 const struct ieee80211_reg_rule *reg_rule;
2508 const struct ieee80211_freq_range *freq_range;
2509 const struct ieee80211_power_rule *power_rule;
2510
2511 reg_rule = &cfg80211_regdomain->reg_rules[i];
2512 freq_range = &reg_rule->freq_range;
2513 power_rule = &reg_rule->power_rule;
2514
2515 nl_reg_rule = nla_nest_start(msg, i);
2516 if (!nl_reg_rule)
2517 goto nla_put_failure;
2518
2519 NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS,
2520 reg_rule->flags);
2521 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START,
2522 freq_range->start_freq_khz);
2523 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END,
2524 freq_range->end_freq_khz);
2525 NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
2526 freq_range->max_bandwidth_khz);
2527 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
2528 power_rule->max_antenna_gain);
2529 NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
2530 power_rule->max_eirp);
2531
2532 nla_nest_end(msg, nl_reg_rule);
2533 }
2534
2535 nla_nest_end(msg, nl_reg_rules);
2536
2537 genlmsg_end(msg, hdr);
2538 err = genlmsg_unicast(msg, info->snd_pid);
2539 goto out;
2540
2541nla_put_failure:
2542 genlmsg_cancel(msg, hdr);
2543 err = -EMSGSIZE;
2544out:
a1794390 2545 mutex_unlock(&cfg80211_mutex);
f130347c
LR		 2546 return err;
2547}
2548
b2e1b302
LR		 2549static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2550{
2551 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2552 struct nlattr *nl_reg_rule;
2553 char *alpha2 = NULL;
2554 int rem_reg_rules = 0, r = 0;
2555 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2556 struct ieee80211_regdomain *rd = NULL;
2557
2558 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2559 return -EINVAL;
2560
2561 if (!info->attrs[NL80211_ATTR_REG_RULES])
2562 return -EINVAL;
2563
2564 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2565
2566 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2567 rem_reg_rules) {
2568 num_rules++;
2569 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4776c6e7 2570 return -EINVAL;
b2e1b302
LR		 2571 }
2572
61405e97
LR		 2573 mutex_lock(&cfg80211_mutex);
2574
d0e18f83
LR		 2575 if (!reg_is_valid_request(alpha2)) {
2576 r = -EINVAL;
2577 goto bad_reg;
2578 }
b2e1b302
LR		 2579
2580 size_of_regd = sizeof(struct ieee80211_regdomain) +
2581 (num_rules * sizeof(struct ieee80211_reg_rule));
2582
2583 rd = kzalloc(size_of_regd, GFP_KERNEL);
d0e18f83
LR		 2584 if (!rd) {
2585 r = -ENOMEM;
2586 goto bad_reg;
2587 }
b2e1b302
LR		 2588
2589 rd->n_reg_rules = num_rules;
2590 rd->alpha2[0] = alpha2[0];
2591 rd->alpha2[1] = alpha2[1];
2592
2593 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2594 rem_reg_rules) {
2595 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2596 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2597 reg_rule_policy);
2598 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2599 if (r)
2600 goto bad_reg;
2601
2602 rule_idx++;
2603
d0e18f83
LR		 2604 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
2605 r = -EINVAL;
b2e1b302 2606 goto bad_reg;
d0e18f83 2607 }
b2e1b302
LR		 2608 }
2609
2610 BUG_ON(rule_idx != num_rules);
2611
b2e1b302 2612 r = set_regdom(rd);
61405e97 2613
a1794390 2614 mutex_unlock(&cfg80211_mutex);
d0e18f83 2615
b2e1b302
LR		 2616 return r;
2617
d2372b31 2618 bad_reg:
61405e97 2619 mutex_unlock(&cfg80211_mutex);
b2e1b302 2620 kfree(rd);
d0e18f83 2621 return r;
b2e1b302
LR		 2622}
2623
2a519311
JB		 2624static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
2625{
2626 struct cfg80211_registered_device *drv;
2627 struct net_device *dev;
2628 struct cfg80211_scan_request *request;
2629 struct cfg80211_ssid *ssid;
2630 struct ieee80211_channel *channel;
2631 struct nlattr *attr;
2632 struct wiphy *wiphy;
2633 int err, tmp, n_ssids = 0, n_channels = 0, i;
2634 enum ieee80211_band band;
70692ad2 2635 size_t ie_len;
2a519311 2636
f4a11bb0
JB		 2637 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2638 return -EINVAL;
2639
3b85875a
JB		 2640 rtnl_lock();
2641
2a519311
JB		 2642 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2643 if (err)
3b85875a 2644 goto out_rtnl;
2a519311
JB		 2645
2646 wiphy = &drv->wiphy;
2647
2648 if (!drv->ops->scan) {
2649 err = -EOPNOTSUPP;
2650 goto out;
2651 }
2652
35a8efe1
JM		 2653 if (!netif_running(dev)) {
2654 err = -ENETDOWN;
2655 goto out;
2656 }
2657
2a519311
JB		 2658 if (drv->scan_req) {
2659 err = -EBUSY;
3b85875a 2660 goto out;
2a519311
JB		 2661 }
2662
2663 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2664 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp)
2665 n_channels++;
2666 if (!n_channels) {
2667 err = -EINVAL;
3b85875a 2668 goto out;
2a519311
JB		 2669 }
2670 } else {
2671 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
2672 if (wiphy->bands[band])
2673 n_channels += wiphy->bands[band]->n_channels;
2674 }
2675
2676 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
2677 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
2678 n_ssids++;
2679
2680 if (n_ssids > wiphy->max_scan_ssids) {
2681 err = -EINVAL;
3b85875a 2682 goto out;
2a519311
JB		 2683 }
2684
70692ad2
JM		 2685 if (info->attrs[NL80211_ATTR_IE])
2686 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2687 else
2688 ie_len = 0;
2689
18a83659
JB		 2690 if (ie_len > wiphy->max_scan_ie_len) {
2691 err = -EINVAL;
2692 goto out;
2693 }
2694
2a519311
JB		 2695 request = kzalloc(sizeof(*request)
2696 + sizeof(*ssid) * n_ssids
70692ad2
JM		 2697 + sizeof(channel) * n_channels
2698 + ie_len, GFP_KERNEL);
2a519311
JB		 2699 if (!request) {
2700 err = -ENOMEM;
3b85875a 2701 goto out;
2a519311
JB		 2702 }
2703
2704 request->channels = (void *)((char *)request + sizeof(*request));
2705 request->n_channels = n_channels;
2706 if (n_ssids)
2707 request->ssids = (void *)(request->channels + n_channels);
2708 request->n_ssids = n_ssids;
70692ad2
JM		 2709 if (ie_len) {
2710 if (request->ssids)
2711 request->ie = (void *)(request->ssids + n_ssids);
2712 else
2713 request->ie = (void *)(request->channels + n_channels);
2714 }
2a519311
JB		 2715
2716 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
2717 /* user specified, bail out if channel not found */
2718 request->n_channels = n_channels;
2719 i = 0;
2720 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
2721 request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr));
2722 if (!request->channels[i]) {
2723 err = -EINVAL;
2724 goto out_free;
2725 }
2726 i++;
2727 }
2728 } else {
2729 /* all channels */
2730 i = 0;
2731 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
2732 int j;
2733 if (!wiphy->bands[band])
2734 continue;
2735 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
2736 request->channels[i] = &wiphy->bands[band]->channels[j];
2737 i++;
2738 }
2739 }
2740 }
2741
2742 i = 0;
2743 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
2744 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
2745 if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) {
2746 err = -EINVAL;
2747 goto out_free;
2748 }
2749 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
2750 request->ssids[i].ssid_len = nla_len(attr);
2751 i++;
2752 }
2753 }
2754
70692ad2
JM		 2755 if (info->attrs[NL80211_ATTR_IE]) {
2756 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
de95a54b
JB		 2757 memcpy((void *)request->ie,
2758 nla_data(info->attrs[NL80211_ATTR_IE]),
70692ad2
JM		 2759 request->ie_len);
2760 }
2761
2a519311
JB		 2762 request->ifidx = dev->ifindex;
2763 request->wiphy = &drv->wiphy;
2764
2765 drv->scan_req = request;
2766 err = drv->ops->scan(&drv->wiphy, dev, request);
2767
2768 out_free:
2769 if (err) {
2770 drv->scan_req = NULL;
2771 kfree(request);
2772 }
2a519311
JB		 2773 out:
2774 cfg80211_put_dev(drv);
2775 dev_put(dev);
3b85875a
JB		 2776 out_rtnl:
2777 rtnl_unlock();
2778
2a519311
JB		 2779 return err;
2780}
2781
2782static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags,
2783 struct cfg80211_registered_device *rdev,
2784 struct net_device *dev,
2785 struct cfg80211_bss *res)
2786{
2787 void *hdr;
2788 struct nlattr *bss;
2789
2790 hdr = nl80211hdr_put(msg, pid, seq, flags,
2791 NL80211_CMD_NEW_SCAN_RESULTS);
2792 if (!hdr)
2793 return -1;
2794
2795 NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION,
2796 rdev->bss_generation);
2797 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
2798
2799 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
2800 if (!bss)
2801 goto nla_put_failure;
2802 if (!is_zero_ether_addr(res->bssid))
2803 NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid);
2804 if (res->information_elements && res->len_information_elements)
2805 NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS,
2806 res->len_information_elements,
2807 res->information_elements);
2808 if (res->tsf)
2809 NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf);
2810 if (res->beacon_interval)
2811 NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval);
2812 NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability);
2813 NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq);
2814
77965c97 2815 switch (rdev->wiphy.signal_type) {
2a519311
JB		 2816 case CFG80211_SIGNAL_TYPE_MBM:
2817 NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal);
2818 break;
2819 case CFG80211_SIGNAL_TYPE_UNSPEC:
2820 NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal);
2821 break;
2822 default:
2823 break;
2824 }
2825
2826 nla_nest_end(msg, bss);
2827
2828 return genlmsg_end(msg, hdr);
2829
2830 nla_put_failure:
2831 genlmsg_cancel(msg, hdr);
2832 return -EMSGSIZE;
2833}
2834
2835static int nl80211_dump_scan(struct sk_buff *skb,
2836 struct netlink_callback *cb)
2837{
2838 struct cfg80211_registered_device *dev;
2839 struct net_device *netdev;
2840 struct cfg80211_internal_bss *scan;
2841 int ifidx = cb->args[0];
2842 int start = cb->args[1], idx = 0;
2843 int err;
2844
2845 if (!ifidx) {
2846 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
2847 nl80211_fam.attrbuf, nl80211_fam.maxattr,
2848 nl80211_policy);
2849 if (err)
2850 return err;
2851
2852 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
2853 return -EINVAL;
2854
2855 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
2856 if (!ifidx)
2857 return -EINVAL;
2858 cb->args[0] = ifidx;
2859 }
2860
2861 netdev = dev_get_by_index(&init_net, ifidx);
2862 if (!netdev)
2863 return -ENODEV;
2864
2865 dev = cfg80211_get_dev_from_ifindex(ifidx);
2866 if (IS_ERR(dev)) {
2867 err = PTR_ERR(dev);
2868 goto out_put_netdev;
2869 }
2870
2871 spin_lock_bh(&dev->bss_lock);
2872 cfg80211_bss_expire(dev);
2873
2874 list_for_each_entry(scan, &dev->bss_list, list) {
2875 if (++idx <= start)
2876 continue;
2877 if (nl80211_send_bss(skb,
2878 NETLINK_CB(cb->skb).pid,
2879 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2880 dev, netdev, &scan->pub) < 0) {
2881 idx--;
2882 goto out;
2883 }
2884 }
2885
2886 out:
2887 spin_unlock_bh(&dev->bss_lock);
2888
2889 cb->args[1] = idx;
2890 err = skb->len;
2891 cfg80211_put_dev(dev);
2892 out_put_netdev:
2893 dev_put(netdev);
2894
2895 return err;
2896}
2897
255e737e
JM		 2898static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
2899{
2900 return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM ||
2901 auth_type == NL80211_AUTHTYPE_SHARED_KEY ||
2902 auth_type == NL80211_AUTHTYPE_FT ||
2903 auth_type == NL80211_AUTHTYPE_NETWORK_EAP;
2904}
2905
636a5d36
JM		 2906static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
2907{
2908 struct cfg80211_registered_device *drv;
2909 struct net_device *dev;
2910 struct cfg80211_auth_request req;
2911 struct wiphy *wiphy;
2912 int err;
2913
f4a11bb0
JB		 2914 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2915 return -EINVAL;
2916
2917 if (!info->attrs[NL80211_ATTR_MAC])
2918 return -EINVAL;
2919
1778092e
JM		 2920 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
2921 return -EINVAL;
2922
636a5d36
JM		 2923 rtnl_lock();
2924
2925 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2926 if (err)
2927 goto unlock_rtnl;
2928
2929 if (!drv->ops->auth) {
2930 err = -EOPNOTSUPP;
2931 goto out;
2932 }
2933
eec60b03
JM		 2934 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
2935 err = -EOPNOTSUPP;
2936 goto out;
2937 }
2938
35a8efe1
JM		 2939 if (!netif_running(dev)) {
2940 err = -ENETDOWN;
2941 goto out;
2942 }
2943
636a5d36
JM		 2944 wiphy = &drv->wiphy;
2945 memset(&req, 0, sizeof(req));
2946
2947 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2948
2949 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2950 req.chan = ieee80211_get_channel(
2951 wiphy,
2952 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
2953 if (!req.chan) {
2954 err = -EINVAL;
2955 goto out;
2956 }
2957 }
2958
2959 if (info->attrs[NL80211_ATTR_SSID]) {
2960 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2961 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
2962 }
2963
2964 if (info->attrs[NL80211_ATTR_IE]) {
2965 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
2966 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2967 }
2968
1778092e
JM		 2969 req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
2970 if (!nl80211_valid_auth_type(req.auth_type)) {
2971 err = -EINVAL;
2972 goto out;
636a5d36
JM		 2973 }
2974
2975 err = drv->ops->auth(&drv->wiphy, dev, &req);
2976
2977out:
2978 cfg80211_put_dev(drv);
2979 dev_put(dev);
2980unlock_rtnl:
2981 rtnl_unlock();
2982 return err;
2983}
2984
2985static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
2986{
2987 struct cfg80211_registered_device *drv;
2988 struct net_device *dev;
2989 struct cfg80211_assoc_request req;
2990 struct wiphy *wiphy;
2991 int err;
2992
f4a11bb0
JB		 2993 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
2994 return -EINVAL;
2995
2996 if (!info->attrs[NL80211_ATTR_MAC] ||
2997 !info->attrs[NL80211_ATTR_SSID])
2998 return -EINVAL;
2999
636a5d36
JM		 3000 rtnl_lock();
3001
3002 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3003 if (err)
3004 goto unlock_rtnl;
3005
3006 if (!drv->ops->assoc) {
3007 err = -EOPNOTSUPP;
3008 goto out;
3009 }
3010
eec60b03
JM		 3011 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3012 err = -EOPNOTSUPP;
3013 goto out;
3014 }
3015
35a8efe1
JM		 3016 if (!netif_running(dev)) {
3017 err = -ENETDOWN;
3018 goto out;
3019 }
3020
636a5d36
JM		 3021 wiphy = &drv->wiphy;
3022 memset(&req, 0, sizeof(req));
3023
3024 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3025
3026 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3027 req.chan = ieee80211_get_channel(
3028 wiphy,
3029 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3030 if (!req.chan) {
3031 err = -EINVAL;
3032 goto out;
3033 }
3034 }
3035
636a5d36
JM		 3036 req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3037 req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3038
3039 if (info->attrs[NL80211_ATTR_IE]) {
3040 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3041 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3042 }
3043
dc6382ce
JM		 3044 if (info->attrs[NL80211_ATTR_USE_MFP]) {
3045 enum nl80211_mfp use_mfp =
3046 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
3047 if (use_mfp == NL80211_MFP_REQUIRED)
3048 req.use_mfp = true;
3049 else if (use_mfp != NL80211_MFP_NO) {
3050 err = -EINVAL;
3051 goto out;
3052 }
3053 }
3054
3f77316c
JM		 3055 req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
3056
636a5d36
JM		 3057 err = drv->ops->assoc(&drv->wiphy, dev, &req);
3058
3059out:
3060 cfg80211_put_dev(drv);
3061 dev_put(dev);
3062unlock_rtnl:
3063 rtnl_unlock();
3064 return err;
3065}
3066
3067static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
3068{
3069 struct cfg80211_registered_device *drv;
3070 struct net_device *dev;
3071 struct cfg80211_deauth_request req;
3072 struct wiphy *wiphy;
3073 int err;
3074
f4a11bb0
JB		 3075 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3076 return -EINVAL;
3077
3078 if (!info->attrs[NL80211_ATTR_MAC])
3079 return -EINVAL;
3080
3081 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3082 return -EINVAL;
3083
636a5d36
JM		 3084 rtnl_lock();
3085
3086 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3087 if (err)
3088 goto unlock_rtnl;
3089
3090 if (!drv->ops->deauth) {
3091 err = -EOPNOTSUPP;
3092 goto out;
3093 }
3094
eec60b03
JM		 3095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3096 err = -EOPNOTSUPP;
3097 goto out;
3098 }
3099
35a8efe1
JM		 3100 if (!netif_running(dev)) {
3101 err = -ENETDOWN;
3102 goto out;
3103 }
3104
636a5d36
JM		 3105 wiphy = &drv->wiphy;
3106 memset(&req, 0, sizeof(req));
3107
3108 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3109
f4a11bb0
JB		 3110 req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3111 if (req.reason_code == 0) {
3112 /* Reason Code 0 is reserved */
3113 err = -EINVAL;
3114 goto out;
255e737e 3115 }
636a5d36
JM		 3116
3117 if (info->attrs[NL80211_ATTR_IE]) {
3118 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3119 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3120 }
3121
3122 err = drv->ops->deauth(&drv->wiphy, dev, &req);
3123
3124out:
3125 cfg80211_put_dev(drv);
3126 dev_put(dev);
3127unlock_rtnl:
3128 rtnl_unlock();
3129 return err;
3130}
3131
3132static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
3133{
3134 struct cfg80211_registered_device *drv;
3135 struct net_device *dev;
3136 struct cfg80211_disassoc_request req;
3137 struct wiphy *wiphy;
3138 int err;
3139
f4a11bb0
JB		 3140 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3141 return -EINVAL;
3142
3143 if (!info->attrs[NL80211_ATTR_MAC])
3144 return -EINVAL;
3145
3146 if (!info->attrs[NL80211_ATTR_REASON_CODE])
3147 return -EINVAL;
3148
636a5d36
JM		 3149 rtnl_lock();
3150
3151 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3152 if (err)
3153 goto unlock_rtnl;
3154
3155 if (!drv->ops->disassoc) {
3156 err = -EOPNOTSUPP;
3157 goto out;
3158 }
3159
eec60b03
JM		 3160 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) {
3161 err = -EOPNOTSUPP;
3162 goto out;
3163 }
3164
35a8efe1
JM		 3165 if (!netif_running(dev)) {
3166 err = -ENETDOWN;
3167 goto out;
3168 }
3169
636a5d36
JM		 3170 wiphy = &drv->wiphy;
3171 memset(&req, 0, sizeof(req));
3172
3173 req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3174
f4a11bb0
JB		 3175 req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
3176 if (req.reason_code == 0) {
3177 /* Reason Code 0 is reserved */
3178 err = -EINVAL;
3179 goto out;
255e737e 3180 }
636a5d36
JM		 3181
3182 if (info->attrs[NL80211_ATTR_IE]) {
3183 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3184 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3185 }
3186
3187 err = drv->ops->disassoc(&drv->wiphy, dev, &req);
3188
3189out:
3190 cfg80211_put_dev(drv);
3191 dev_put(dev);
3192unlock_rtnl:
3193 rtnl_unlock();
3194 return err;
3195}
3196
04a773ad
JB		 3197static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
3198{
3199 struct cfg80211_registered_device *drv;
3200 struct net_device *dev;
3201 struct cfg80211_ibss_params ibss;
3202 struct wiphy *wiphy;
3203 int err;
3204
8e30bc55
JB		 3205 memset(&ibss, 0, sizeof(ibss));
3206
04a773ad
JB		 3207 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
3208 return -EINVAL;
3209
3210 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
3211 !info->attrs[NL80211_ATTR_SSID] ||
3212 !nla_len(info->attrs[NL80211_ATTR_SSID]))
3213 return -EINVAL;
3214
8e30bc55
JB		 3215 ibss.beacon_interval = 100;
3216
3217 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
3218 ibss.beacon_interval =
3219 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3220 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
3221 return -EINVAL;
3222 }
3223
04a773ad
JB		 3224 rtnl_lock();
3225
3226 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3227 if (err)
3228 goto unlock_rtnl;
3229
3230 if (!drv->ops->join_ibss) {
3231 err = -EOPNOTSUPP;
3232 goto out;
3233 }
3234
3235 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3236 err = -EOPNOTSUPP;
3237 goto out;
3238 }
3239
3240 if (!netif_running(dev)) {
3241 err = -ENETDOWN;
3242 goto out;
3243 }
3244
3245 wiphy = &drv->wiphy;
04a773ad
JB		 3246
3247 if (info->attrs[NL80211_ATTR_MAC])
3248 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
3249 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3250 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
3251
3252 if (info->attrs[NL80211_ATTR_IE]) {
3253 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
3254 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
3255 }
3256
3257 ibss.channel = ieee80211_get_channel(wiphy,
3258 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
3259 if (!ibss.channel ||
3260 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
3261 ibss.channel->flags & IEEE80211_CHAN_DISABLED) {
3262 err = -EINVAL;
3263 goto out;
3264 }
3265
3266 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
3267
3268 err = cfg80211_join_ibss(drv, dev, &ibss);
3269
3270out:
3271 cfg80211_put_dev(drv);
3272 dev_put(dev);
3273unlock_rtnl:
3274 rtnl_unlock();
3275 return err;
3276}
3277
3278static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
3279{
3280 struct cfg80211_registered_device *drv;
3281 struct net_device *dev;
3282 int err;
3283
3284 rtnl_lock();
3285
3286 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
3287 if (err)
3288 goto unlock_rtnl;
3289
3290 if (!drv->ops->leave_ibss) {
3291 err = -EOPNOTSUPP;
3292 goto out;
3293 }
3294
3295 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) {
3296 err = -EOPNOTSUPP;
3297 goto out;
3298 }
3299
3300 if (!netif_running(dev)) {
3301 err = -ENETDOWN;
3302 goto out;
3303 }
3304
9d308429 3305 err = cfg80211_leave_ibss(drv, dev, false);
04a773ad
JB		 3306
3307out:
3308 cfg80211_put_dev(drv);
3309 dev_put(dev);
3310unlock_rtnl:
3311 rtnl_unlock();
3312 return err;
3313}
3314
55682965
JB		 3315static struct genl_ops nl80211_ops[] = {
3316 {
3317 .cmd = NL80211_CMD_GET_WIPHY,
3318 .doit = nl80211_get_wiphy,
3319 .dumpit = nl80211_dump_wiphy,
3320 .policy = nl80211_policy,
3321 /* can be retrieved by unprivileged users */
3322 },
3323 {
3324 .cmd = NL80211_CMD_SET_WIPHY,
3325 .doit = nl80211_set_wiphy,
3326 .policy = nl80211_policy,
3327 .flags = GENL_ADMIN_PERM,
3328 },
3329 {
3330 .cmd = NL80211_CMD_GET_INTERFACE,
3331 .doit = nl80211_get_interface,
3332 .dumpit = nl80211_dump_interface,
3333 .policy = nl80211_policy,
3334 /* can be retrieved by unprivileged users */
3335 },
3336 {
3337 .cmd = NL80211_CMD_SET_INTERFACE,
3338 .doit = nl80211_set_interface,
3339 .policy = nl80211_policy,
3340 .flags = GENL_ADMIN_PERM,
3341 },
3342 {
3343 .cmd = NL80211_CMD_NEW_INTERFACE,
3344 .doit = nl80211_new_interface,
3345 .policy = nl80211_policy,
3346 .flags = GENL_ADMIN_PERM,
3347 },
3348 {
3349 .cmd = NL80211_CMD_DEL_INTERFACE,
3350 .doit = nl80211_del_interface,
3351 .policy = nl80211_policy,
41ade00f
JB		 3352 .flags = GENL_ADMIN_PERM,
3353 },
3354 {
3355 .cmd = NL80211_CMD_GET_KEY,
3356 .doit = nl80211_get_key,
3357 .policy = nl80211_policy,
3358 .flags = GENL_ADMIN_PERM,
3359 },
3360 {
3361 .cmd = NL80211_CMD_SET_KEY,
3362 .doit = nl80211_set_key,
3363 .policy = nl80211_policy,
3364 .flags = GENL_ADMIN_PERM,
3365 },
3366 {
3367 .cmd = NL80211_CMD_NEW_KEY,
3368 .doit = nl80211_new_key,
3369 .policy = nl80211_policy,
3370 .flags = GENL_ADMIN_PERM,
3371 },
3372 {
3373 .cmd = NL80211_CMD_DEL_KEY,
3374 .doit = nl80211_del_key,
3375 .policy = nl80211_policy,
55682965
JB		 3376 .flags = GENL_ADMIN_PERM,
3377 },
ed1b6cc7
JB		 3378 {
3379 .cmd = NL80211_CMD_SET_BEACON,
3380 .policy = nl80211_policy,
3381 .flags = GENL_ADMIN_PERM,
3382 .doit = nl80211_addset_beacon,
3383 },
3384 {
3385 .cmd = NL80211_CMD_NEW_BEACON,
3386 .policy = nl80211_policy,
3387 .flags = GENL_ADMIN_PERM,
3388 .doit = nl80211_addset_beacon,
3389 },
3390 {
3391 .cmd = NL80211_CMD_DEL_BEACON,
3392 .policy = nl80211_policy,
3393 .flags = GENL_ADMIN_PERM,
3394 .doit = nl80211_del_beacon,
3395 },
5727ef1b
JB		 3396 {
3397 .cmd = NL80211_CMD_GET_STATION,
3398 .doit = nl80211_get_station,
2ec600d6 3399 .dumpit = nl80211_dump_station,
5727ef1b 3400 .policy = nl80211_policy,
5727ef1b
JB		 3401 },
3402 {
3403 .cmd = NL80211_CMD_SET_STATION,
3404 .doit = nl80211_set_station,
3405 .policy = nl80211_policy,
3406 .flags = GENL_ADMIN_PERM,
3407 },
3408 {
3409 .cmd = NL80211_CMD_NEW_STATION,
3410 .doit = nl80211_new_station,
3411 .policy = nl80211_policy,
3412 .flags = GENL_ADMIN_PERM,
3413 },
3414 {
3415 .cmd = NL80211_CMD_DEL_STATION,
3416 .doit = nl80211_del_station,
3417 .policy = nl80211_policy,
2ec600d6
LCC		 3418 .flags = GENL_ADMIN_PERM,
3419 },
3420 {
3421 .cmd = NL80211_CMD_GET_MPATH,
3422 .doit = nl80211_get_mpath,
3423 .dumpit = nl80211_dump_mpath,
3424 .policy = nl80211_policy,
3425 .flags = GENL_ADMIN_PERM,
3426 },
3427 {
3428 .cmd = NL80211_CMD_SET_MPATH,
3429 .doit = nl80211_set_mpath,
3430 .policy = nl80211_policy,
3431 .flags = GENL_ADMIN_PERM,
3432 },
3433 {
3434 .cmd = NL80211_CMD_NEW_MPATH,
3435 .doit = nl80211_new_mpath,
3436 .policy = nl80211_policy,
3437 .flags = GENL_ADMIN_PERM,
3438 },
3439 {
3440 .cmd = NL80211_CMD_DEL_MPATH,
3441 .doit = nl80211_del_mpath,
3442 .policy = nl80211_policy,
9f1ba906
JM		 3443 .flags = GENL_ADMIN_PERM,
3444 },
3445 {
3446 .cmd = NL80211_CMD_SET_BSS,
3447 .doit = nl80211_set_bss,
3448 .policy = nl80211_policy,
b2e1b302
LR		 3449 .flags = GENL_ADMIN_PERM,
3450 },
f130347c
LR		 3451 {
3452 .cmd = NL80211_CMD_GET_REG,
3453 .doit = nl80211_get_reg,
3454 .policy = nl80211_policy,
3455 /* can be retrieved by unprivileged users */
3456 },
b2e1b302
LR		 3457 {
3458 .cmd = NL80211_CMD_SET_REG,
3459 .doit = nl80211_set_reg,
3460 .policy = nl80211_policy,
3461 .flags = GENL_ADMIN_PERM,
3462 },
3463 {
3464 .cmd = NL80211_CMD_REQ_SET_REG,
3465 .doit = nl80211_req_set_reg,
3466 .policy = nl80211_policy,
93da9cc1 3467 .flags = GENL_ADMIN_PERM,
3468 },
3469 {
3470 .cmd = NL80211_CMD_GET_MESH_PARAMS,
3471 .doit = nl80211_get_mesh_params,
3472 .policy = nl80211_policy,
3473 /* can be retrieved by unprivileged users */
3474 },
3475 {
3476 .cmd = NL80211_CMD_SET_MESH_PARAMS,
3477 .doit = nl80211_set_mesh_params,
3478 .policy = nl80211_policy,
9aed3cc1
JM		 3479 .flags = GENL_ADMIN_PERM,
3480 },
2a519311
JB		 3481 {
3482 .cmd = NL80211_CMD_TRIGGER_SCAN,
3483 .doit = nl80211_trigger_scan,
3484 .policy = nl80211_policy,
3485 .flags = GENL_ADMIN_PERM,
3486 },
3487 {
3488 .cmd = NL80211_CMD_GET_SCAN,
3489 .policy = nl80211_policy,
3490 .dumpit = nl80211_dump_scan,
3491 },
636a5d36
JM		 3492 {
3493 .cmd = NL80211_CMD_AUTHENTICATE,
3494 .doit = nl80211_authenticate,
3495 .policy = nl80211_policy,
3496 .flags = GENL_ADMIN_PERM,
3497 },
3498 {
3499 .cmd = NL80211_CMD_ASSOCIATE,
3500 .doit = nl80211_associate,
3501 .policy = nl80211_policy,
3502 .flags = GENL_ADMIN_PERM,
3503 },
3504 {
3505 .cmd = NL80211_CMD_DEAUTHENTICATE,
3506 .doit = nl80211_deauthenticate,
3507 .policy = nl80211_policy,
3508 .flags = GENL_ADMIN_PERM,
3509 },
3510 {
3511 .cmd = NL80211_CMD_DISASSOCIATE,
3512 .doit = nl80211_disassociate,
3513 .policy = nl80211_policy,
3514 .flags = GENL_ADMIN_PERM,
3515 },
04a773ad
JB		 3516 {
3517 .cmd = NL80211_CMD_JOIN_IBSS,
3518 .doit = nl80211_join_ibss,
3519 .policy = nl80211_policy,
3520 .flags = GENL_ADMIN_PERM,
3521 },
3522 {
3523 .cmd = NL80211_CMD_LEAVE_IBSS,
3524 .doit = nl80211_leave_ibss,
3525 .policy = nl80211_policy,
3526 .flags = GENL_ADMIN_PERM,
3527 },
55682965 3528};
6039f6d2
JM		 3529static struct genl_multicast_group nl80211_mlme_mcgrp = {
3530 .name = "mlme",
3531};
55682965
JB		 3532
3533/* multicast groups */
3534static struct genl_multicast_group nl80211_config_mcgrp = {
3535 .name = "config",
3536};
2a519311
JB		 3537static struct genl_multicast_group nl80211_scan_mcgrp = {
3538 .name = "scan",
3539};
73d54c9e
LR		 3540static struct genl_multicast_group nl80211_regulatory_mcgrp = {
3541 .name = "regulatory",
3542};
55682965
JB		 3543
3544/* notification functions */
3545
3546void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
3547{
3548 struct sk_buff *msg;
3549
fd2120ca 3550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
55682965
JB		 3551 if (!msg)
3552 return;
3553
3554 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
3555 nlmsg_free(msg);
3556 return;
3557 }
3558
3559 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
3560}
3561
2a519311
JB		 3562static int nl80211_send_scan_donemsg(struct sk_buff *msg,
3563 struct cfg80211_registered_device *rdev,
3564 struct net_device *netdev,
3565 u32 pid, u32 seq, int flags,
3566 u32 cmd)
3567{
3568 void *hdr;
3569
3570 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
3571 if (!hdr)
3572 return -1;
3573
b5850a7a 3574 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
2a519311
JB		 3575 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3576
3577 /* XXX: we should probably bounce back the request? */
3578
3579 return genlmsg_end(msg, hdr);
3580
3581 nla_put_failure:
3582 genlmsg_cancel(msg, hdr);
3583 return -EMSGSIZE;
3584}
3585
3586void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
3587 struct net_device *netdev)
3588{
3589 struct sk_buff *msg;
3590
fd2120ca 3591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 3592 if (!msg)
3593 return;
3594
3595 if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
3596 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
3597 nlmsg_free(msg);
3598 return;
3599 }
3600
3601 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
3602}
3603
3604void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
3605 struct net_device *netdev)
3606{
3607 struct sk_buff *msg;
3608
fd2120ca 3609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2a519311
JB		 3610 if (!msg)
3611 return;
3612
3613 if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0,
3614 NL80211_CMD_SCAN_ABORTED) < 0) {
3615 nlmsg_free(msg);
3616 return;
3617 }
3618
3619 genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL);
3620}
3621
73d54c9e
LR		 3622/*
3623 * This can happen on global regulatory changes or device specific settings
3624 * based on custom world regulatory domains.
3625 */
3626void nl80211_send_reg_change_event(struct regulatory_request *request)
3627{
3628 struct sk_buff *msg;
3629 void *hdr;
3630
fd2120ca 3631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
73d54c9e
LR		 3632 if (!msg)
3633 return;
3634
3635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
3636 if (!hdr) {
3637 nlmsg_free(msg);
3638 return;
3639 }
3640
3641 /* Userspace can always count this one always being set */
3642 NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator);
3643
3644 if (request->alpha2[0] == '0' && request->alpha2[1] == '0')
3645 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3646 NL80211_REGDOM_TYPE_WORLD);
3647 else if (request->alpha2[0] == '9' && request->alpha2[1] == '9')
3648 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3649 NL80211_REGDOM_TYPE_CUSTOM_WORLD);
3650 else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
3651 request->intersect)
3652 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3653 NL80211_REGDOM_TYPE_INTERSECTION);
3654 else {
3655 NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE,
3656 NL80211_REGDOM_TYPE_COUNTRY);
3657 NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2);
3658 }
3659
3660 if (wiphy_idx_valid(request->wiphy_idx))
3661 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx);
3662
3663 if (genlmsg_end(msg, hdr) < 0) {
3664 nlmsg_free(msg);
3665 return;
3666 }
3667
3668 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL);
3669
3670 return;
3671
3672nla_put_failure:
3673 genlmsg_cancel(msg, hdr);
3674 nlmsg_free(msg);
3675}
3676
6039f6d2
JM		 3677static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
3678 struct net_device *netdev,
3679 const u8 *buf, size_t len,
3680 enum nl80211_commands cmd)
3681{
3682 struct sk_buff *msg;
3683 void *hdr;
3684
fd2120ca 3685 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6039f6d2
JM		 3686 if (!msg)
3687 return;
3688
3689 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
3690 if (!hdr) {
3691 nlmsg_free(msg);
3692 return;
3693 }
3694
3695 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3696 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3697 NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf);
3698
3699 if (genlmsg_end(msg, hdr) < 0) {
3700 nlmsg_free(msg);
3701 return;
3702 }
3703
d91c01c7 3704 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
6039f6d2
JM		 3705 return;
3706
3707 nla_put_failure:
3708 genlmsg_cancel(msg, hdr);
3709 nlmsg_free(msg);
3710}
3711
3712void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
3713 struct net_device *netdev, const u8 *buf, size_t len)
3714{
3715 nl80211_send_mlme_event(rdev, netdev, buf, len,
3716 NL80211_CMD_AUTHENTICATE);
3717}
3718
3719void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
3720 struct net_device *netdev, const u8 *buf,
3721 size_t len)
3722{
3723 nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE);
3724}
3725
53b46b84
JM		 3726void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
3727 struct net_device *netdev, const u8 *buf, size_t len)
6039f6d2
JM		 3728{
3729 nl80211_send_mlme_event(rdev, netdev, buf, len,
3730 NL80211_CMD_DEAUTHENTICATE);
3731}
3732
53b46b84
JM		 3733void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
3734 struct net_device *netdev, const u8 *buf,
3735 size_t len)
6039f6d2
JM		 3736{
3737 nl80211_send_mlme_event(rdev, netdev, buf, len,
3738 NL80211_CMD_DISASSOCIATE);
3739}
3740
1b06bb40
LR		 3741static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
3742 struct net_device *netdev, int cmd,
3743 const u8 *addr)
1965c853
JM		 3744{
3745 struct sk_buff *msg;
3746 void *hdr;
3747
fd2120ca 3748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
1965c853
JM		 3749 if (!msg)
3750 return;
3751
3752 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
3753 if (!hdr) {
3754 nlmsg_free(msg);
3755 return;
3756 }
3757
3758 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3759 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3760 NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT);
3761 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3762
3763 if (genlmsg_end(msg, hdr) < 0) {
3764 nlmsg_free(msg);
3765 return;
3766 }
3767
3768 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC);
3769 return;
3770
3771 nla_put_failure:
3772 genlmsg_cancel(msg, hdr);
3773 nlmsg_free(msg);
3774}
3775
3776void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
3777 struct net_device *netdev, const u8 *addr)
3778{
3779 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
3780 addr);
3781}
3782
3783void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
3784 struct net_device *netdev, const u8 *addr)
3785{
3786 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, addr);
3787}
3788
04a773ad
JB		 3789void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
3790 struct net_device *netdev, const u8 *bssid,
3791 gfp_t gfp)
3792{
3793 struct sk_buff *msg;
3794 void *hdr;
3795
fd2120ca 3796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
04a773ad
JB		 3797 if (!msg)
3798 return;
3799
3800 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
3801 if (!hdr) {
3802 nlmsg_free(msg);
3803 return;
3804 }
3805
3806 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3807 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3808 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid);
3809
3810 if (genlmsg_end(msg, hdr) < 0) {
3811 nlmsg_free(msg);
3812 return;
3813 }
3814
3815 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
3816 return;
3817
3818 nla_put_failure:
3819 genlmsg_cancel(msg, hdr);
3820 nlmsg_free(msg);
3821}
3822
a3b8b056
JM		 3823void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
3824 struct net_device *netdev, const u8 *addr,
3825 enum nl80211_key_type key_type, int key_id,
3826 const u8 *tsc)
3827{
3828 struct sk_buff *msg;
3829 void *hdr;
3830
fd2120ca 3831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
a3b8b056
JM		 3832 if (!msg)
3833 return;
3834
3835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
3836 if (!hdr) {
3837 nlmsg_free(msg);
3838 return;
3839 }
3840
3841 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
3842 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
3843 if (addr)
3844 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
3845 NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type);
3846 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id);
3847 if (tsc)
3848 NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc);
3849
3850 if (genlmsg_end(msg, hdr) < 0) {
3851 nlmsg_free(msg);
3852 return;
3853 }
3854
3855 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL);
3856 return;
3857
3858 nla_put_failure:
3859 genlmsg_cancel(msg, hdr);
3860 nlmsg_free(msg);
3861}
3862
6bad8766
LR		 3863void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
3864 struct ieee80211_channel *channel_before,
3865 struct ieee80211_channel *channel_after)
3866{
3867 struct sk_buff *msg;
3868 void *hdr;
3869 struct nlattr *nl_freq;
3870
fd2120ca 3871 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
6bad8766
LR		 3872 if (!msg)
3873 return;
3874
3875 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
3876 if (!hdr) {
3877 nlmsg_free(msg);
3878 return;
3879 }
3880
3881 /*
3882 * Since we are applying the beacon hint to a wiphy we know its
3883 * wiphy_idx is valid
3884 */
3885 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy));
3886
3887 /* Before */
3888 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
3889 if (!nl_freq)
3890 goto nla_put_failure;
3891 if (nl80211_msg_put_channel(msg, channel_before))
3892 goto nla_put_failure;
3893 nla_nest_end(msg, nl_freq);
3894
3895 /* After */
3896 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
3897 if (!nl_freq)
3898 goto nla_put_failure;
3899 if (nl80211_msg_put_channel(msg, channel_after))
3900 goto nla_put_failure;
3901 nla_nest_end(msg, nl_freq);
3902
3903 if (genlmsg_end(msg, hdr) < 0) {
3904 nlmsg_free(msg);
3905 return;
3906 }
3907
3908 genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
3909
3910 return;
3911
3912nla_put_failure:
3913 genlmsg_cancel(msg, hdr);
3914 nlmsg_free(msg);
3915}
3916
55682965
JB		 3917/* initialisation/exit functions */
3918
3919int nl80211_init(void)
3920{
0d63cbb5 3921 int err;
55682965 3922
0d63cbb5
MM		 3923 err = genl_register_family_with_ops(&nl80211_fam,
3924 nl80211_ops, ARRAY_SIZE(nl80211_ops));
55682965
JB		 3925 if (err)
3926 return err;
3927
55682965
JB		 3928 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
3929 if (err)
3930 goto err_out;
3931
2a519311
JB		 3932 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
3933 if (err)
3934 goto err_out;
3935
73d54c9e
LR		 3936 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
3937 if (err)
3938 goto err_out;
3939
6039f6d2
JM		 3940 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
3941 if (err)
3942 goto err_out;
3943
55682965
JB		 3944 return 0;
3945 err_out:
3946 genl_unregister_family(&nl80211_fam);
3947 return err;
3948}
3949
3950void nl80211_exit(void)
3951{
3952 genl_unregister_family(&nl80211_fam);
3953}
kernel source for telekom puls (alcatel/mediatek)