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ucc_geth: Remove UGETH_FILTERING dead code
[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 *
4 * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
5 */
6
7#include <linux/if.h>
8#include <linux/module.h>
9#include <linux/err.h>
10#include <linux/mutex.h>
11#include <linux/list.h>
12#include <linux/if_ether.h>
13#include <linux/ieee80211.h>
14#include <linux/nl80211.h>
15#include <linux/rtnetlink.h>
16#include <linux/netlink.h>
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
JM		 62 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
63 [NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET] = { .type = NLA_U32 },
55682965
JB		 64
65 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
66 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
67 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
41ade00f
JB		 68
69 [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
70
71 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
72 .len = WLAN_MAX_KEY_LEN },
73 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
74 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
75 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
ed1b6cc7
JB		 76
77 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
78 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
79 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
80 .len = IEEE80211_MAX_DATA_LEN },
81 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
82 .len = IEEE80211_MAX_DATA_LEN },
5727ef1b
JB		 83 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
84 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
85 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
86 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
87 .len = NL80211_MAX_SUPP_RATES },
2ec600d6 88 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
5727ef1b 89 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
0a9542ee 90 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
2ec600d6
LCC		 91 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
92 .len = IEEE80211_MAX_MESH_ID_LEN },
93 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
9f1ba906 94
b2e1b302
LR		 95 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
96 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
97
9f1ba906
JM		 98 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
99 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
100 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
90c97a04
JM		 101 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
102 .len = NL80211_MAX_SUPP_RATES },
36aedc90 103
93da9cc1 104 [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED },
105
36aedc90
JM		 106 [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY,
107 .len = NL80211_HT_CAPABILITY_LEN },
55682965
JB		 108};
109
110/* message building helper */
111static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
112 int flags, u8 cmd)
113{
114 /* since there is no private header just add the generic one */
115 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
116}
117
118/* netlink command implementations */
119
120static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
121 struct cfg80211_registered_device *dev)
122{
123 void *hdr;
ee688b00
JB		 124 struct nlattr *nl_bands, *nl_band;
125 struct nlattr *nl_freqs, *nl_freq;
126 struct nlattr *nl_rates, *nl_rate;
f59ac048 127 struct nlattr *nl_modes;
ee688b00
JB		 128 enum ieee80211_band band;
129 struct ieee80211_channel *chan;
130 struct ieee80211_rate *rate;
131 int i;
f59ac048 132 u16 ifmodes = dev->wiphy.interface_modes;
55682965
JB		 133
134 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
135 if (!hdr)
136 return -1;
137
138 NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
139 NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
ee688b00 140
f59ac048
LR		 141 nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
142 if (!nl_modes)
143 goto nla_put_failure;
144
145 i = 0;
146 while (ifmodes) {
147 if (ifmodes & 1)
148 NLA_PUT_FLAG(msg, i);
149 ifmodes >>= 1;
150 i++;
151 }
152
153 nla_nest_end(msg, nl_modes);
154
ee688b00
JB		 155 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
156 if (!nl_bands)
157 goto nla_put_failure;
158
159 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
160 if (!dev->wiphy.bands[band])
161 continue;
162
163 nl_band = nla_nest_start(msg, band);
164 if (!nl_band)
165 goto nla_put_failure;
166
d51626df
JB		 167 /* add HT info */
168 if (dev->wiphy.bands[band]->ht_cap.ht_supported) {
169 NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET,
170 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
171 &dev->wiphy.bands[band]->ht_cap.mcs);
172 NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA,
173 dev->wiphy.bands[band]->ht_cap.cap);
174 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
175 dev->wiphy.bands[band]->ht_cap.ampdu_factor);
176 NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
177 dev->wiphy.bands[band]->ht_cap.ampdu_density);
178 }
179
ee688b00
JB		 180 /* add frequencies */
181 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
182 if (!nl_freqs)
183 goto nla_put_failure;
184
185 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
186 nl_freq = nla_nest_start(msg, i);
187 if (!nl_freq)
188 goto nla_put_failure;
189
190 chan = &dev->wiphy.bands[band]->channels[i];
191 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
192 chan->center_freq);
193
194 if (chan->flags & IEEE80211_CHAN_DISABLED)
195 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
196 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
197 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
198 if (chan->flags & IEEE80211_CHAN_NO_IBSS)
199 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
200 if (chan->flags & IEEE80211_CHAN_RADAR)
201 NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
202
bf8c1ac6
JM		 203 NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
204 DBM_TO_MBM(chan->max_power));
e2f367f2 205
ee688b00
JB		 206 nla_nest_end(msg, nl_freq);
207 }
208
209 nla_nest_end(msg, nl_freqs);
210
211 /* add bitrates */
212 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
213 if (!nl_rates)
214 goto nla_put_failure;
215
216 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
217 nl_rate = nla_nest_start(msg, i);
218 if (!nl_rate)
219 goto nla_put_failure;
220
221 rate = &dev->wiphy.bands[band]->bitrates[i];
222 NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
223 rate->bitrate);
224 if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
225 NLA_PUT_FLAG(msg,
226 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
227
228 nla_nest_end(msg, nl_rate);
229 }
230
231 nla_nest_end(msg, nl_rates);
232
233 nla_nest_end(msg, nl_band);
234 }
235 nla_nest_end(msg, nl_bands);
236
55682965
JB		 237 return genlmsg_end(msg, hdr);
238
239 nla_put_failure:
bc3ed28c
TG		 240 genlmsg_cancel(msg, hdr);
241 return -EMSGSIZE;
55682965
JB		 242}
243
244static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
245{
246 int idx = 0;
247 int start = cb->args[0];
248 struct cfg80211_registered_device *dev;
249
250 mutex_lock(&cfg80211_drv_mutex);
251 list_for_each_entry(dev, &cfg80211_drv_list, list) {
b4637271 252 if (++idx <= start)
55682965
JB		 253 continue;
254 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
255 cb->nlh->nlmsg_seq, NLM_F_MULTI,
b4637271
JV		 256 dev) < 0) {
257 idx--;
55682965 258 break;
b4637271 259 }
55682965
JB		 260 }
261 mutex_unlock(&cfg80211_drv_mutex);
262
263 cb->args[0] = idx;
264
265 return skb->len;
266}
267
268static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
269{
270 struct sk_buff *msg;
271 struct cfg80211_registered_device *dev;
272
273 dev = cfg80211_get_dev_from_info(info);
274 if (IS_ERR(dev))
275 return PTR_ERR(dev);
276
277 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
278 if (!msg)
279 goto out_err;
280
281 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
282 goto out_free;
283
284 cfg80211_put_dev(dev);
285
286 return genlmsg_unicast(msg, info->snd_pid);
287
288 out_free:
289 nlmsg_free(msg);
290 out_err:
291 cfg80211_put_dev(dev);
292 return -ENOBUFS;
293}
294
31888487
JM		 295static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
296 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
297 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
298 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
299 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
300 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
301};
302
303static int parse_txq_params(struct nlattr *tb[],
304 struct ieee80211_txq_params *txq_params)
305{
306 if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] ||
307 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
308 !tb[NL80211_TXQ_ATTR_AIFS])
309 return -EINVAL;
310
311 txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]);
312 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
313 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
314 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
315 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
316
317 return 0;
318}
319
55682965
JB		 320static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
321{
322 struct cfg80211_registered_device *rdev;
31888487
JM		 323 int result = 0, rem_txq_params = 0;
324 struct nlattr *nl_txq_params;
55682965
JB		 325
326 rdev = cfg80211_get_dev_from_info(info);
327 if (IS_ERR(rdev))
328 return PTR_ERR(rdev);
329
31888487
JM		 330 if (info->attrs[NL80211_ATTR_WIPHY_NAME]) {
331 result = cfg80211_dev_rename(
332 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
333 if (result)
334 goto bad_res;
335 }
336
337 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
338 struct ieee80211_txq_params txq_params;
339 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
340
341 if (!rdev->ops->set_txq_params) {
342 result = -EOPNOTSUPP;
343 goto bad_res;
344 }
345
346 nla_for_each_nested(nl_txq_params,
347 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
348 rem_txq_params) {
349 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
350 nla_data(nl_txq_params),
351 nla_len(nl_txq_params),
352 txq_params_policy);
353 result = parse_txq_params(tb, &txq_params);
354 if (result)
355 goto bad_res;
356
357 result = rdev->ops->set_txq_params(&rdev->wiphy,
358 &txq_params);
359 if (result)
360 goto bad_res;
361 }
362 }
55682965 363
72bdcf34
JM		 364 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
365 enum nl80211_sec_chan_offset sec_chan_offset =
366 NL80211_SEC_CHAN_NO_HT;
367 struct ieee80211_channel *chan;
306d6112 368 struct ieee80211_sta_ht_cap *ht_cap;
72bdcf34
JM		 369 u32 freq, sec_freq;
370
371 if (!rdev->ops->set_channel) {
372 result = -EOPNOTSUPP;
373 goto bad_res;
374 }
375
306d6112
JB		 376 result = -EINVAL;
377
72bdcf34 378 if (info->attrs[NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]) {
306d6112 379 sec_chan_offset = nla_get_u32(info->attrs[
72bdcf34
JM		 380 NL80211_ATTR_WIPHY_SEC_CHAN_OFFSET]);
381 if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
382 sec_chan_offset != NL80211_SEC_CHAN_DISABLED &&
383 sec_chan_offset != NL80211_SEC_CHAN_BELOW &&
306d6112 384 sec_chan_offset != NL80211_SEC_CHAN_ABOVE)
72bdcf34 385 goto bad_res;
72bdcf34
JM		 386 }
387
388 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
389 chan = ieee80211_get_channel(&rdev->wiphy, freq);
306d6112
JB		 390
391 /* Primary channel not allowed */
392 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
72bdcf34 393 goto bad_res;
306d6112 394
72bdcf34
JM		 395 if (sec_chan_offset == NL80211_SEC_CHAN_BELOW)
396 sec_freq = freq - 20;
397 else if (sec_chan_offset == NL80211_SEC_CHAN_ABOVE)
398 sec_freq = freq + 20;
399 else
400 sec_freq = 0;
401
306d6112
JB		 402 ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap;
403
404 /* no HT capabilities */
405 if (sec_chan_offset != NL80211_SEC_CHAN_NO_HT &&
406 !ht_cap->ht_supported)
407 goto bad_res;
408
72bdcf34
JM		 409 if (sec_freq) {
410 struct ieee80211_channel *schan;
306d6112
JB		 411
412 /* no 40 MHz capabilities */
413 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
414 (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT))
415 goto bad_res;
416
72bdcf34 417 schan = ieee80211_get_channel(&rdev->wiphy, sec_freq);
306d6112
JB		 418
419 /* Secondary channel not allowed */
420 if (!schan || schan->flags & IEEE80211_CHAN_DISABLED)
72bdcf34 421 goto bad_res;
72bdcf34
JM		 422 }
423
424 result = rdev->ops->set_channel(&rdev->wiphy, chan,
425 sec_chan_offset);
426 if (result)
427 goto bad_res;
428 }
429
430
306d6112 431 bad_res:
55682965
JB		 432 cfg80211_put_dev(rdev);
433 return result;
434}
435
436
437static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
438 struct net_device *dev)
439{
440 void *hdr;
441
442 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
443 if (!hdr)
444 return -1;
445
446 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
447 NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
60719ffd 448 NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype);
55682965
JB		 449 return genlmsg_end(msg, hdr);
450
451 nla_put_failure:
bc3ed28c
TG		 452 genlmsg_cancel(msg, hdr);
453 return -EMSGSIZE;
55682965
JB		 454}
455
456static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
457{
458 int wp_idx = 0;
459 int if_idx = 0;
460 int wp_start = cb->args[0];
461 int if_start = cb->args[1];
462 struct cfg80211_registered_device *dev;
463 struct wireless_dev *wdev;
464
465 mutex_lock(&cfg80211_drv_mutex);
466 list_for_each_entry(dev, &cfg80211_drv_list, list) {
bba95fef
JB		 467 if (wp_idx < wp_start) {
468 wp_idx++;
55682965 469 continue;
bba95fef 470 }
55682965
JB		 471 if_idx = 0;
472
473 mutex_lock(&dev->devlist_mtx);
474 list_for_each_entry(wdev, &dev->netdev_list, list) {
bba95fef
JB		 475 if (if_idx < if_start) {
476 if_idx++;
55682965 477 continue;
bba95fef 478 }
55682965
JB		 479 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
480 cb->nlh->nlmsg_seq, NLM_F_MULTI,
bba95fef
JB		 481 wdev->netdev) < 0) {
482 mutex_unlock(&dev->devlist_mtx);
483 goto out;
484 }
485 if_idx++;
55682965
JB		 486 }
487 mutex_unlock(&dev->devlist_mtx);
bba95fef
JB		 488
489 wp_idx++;
55682965 490 }
bba95fef 491 out:
55682965
JB		 492 mutex_unlock(&cfg80211_drv_mutex);
493
494 cb->args[0] = wp_idx;
495 cb->args[1] = if_idx;
496
497 return skb->len;
498}
499
500static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
501{
502 struct sk_buff *msg;
503 struct cfg80211_registered_device *dev;
504 struct net_device *netdev;
505 int err;
506
bba95fef 507 err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev);
55682965
JB		 508 if (err)
509 return err;
510
511 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
512 if (!msg)
513 goto out_err;
514
515 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
516 goto out_free;
517
518 dev_put(netdev);
519 cfg80211_put_dev(dev);
520
521 return genlmsg_unicast(msg, info->snd_pid);
522
523 out_free:
524 nlmsg_free(msg);
525 out_err:
526 dev_put(netdev);
527 cfg80211_put_dev(dev);
528 return -ENOBUFS;
529}
530
66f7ac50
MW		 531static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
532 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
533 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
534 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
535 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
536 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
537};
538
539static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
540{
541 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
542 int flag;
543
544 *mntrflags = 0;
545
546 if (!nla)
547 return -EINVAL;
548
549 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
550 nla, mntr_flags_policy))
551 return -EINVAL;
552
553 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
554 if (flags[flag])
555 *mntrflags |= (1<<flag);
556
557 return 0;
558}
559
55682965
JB		 560static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
561{
562 struct cfg80211_registered_device *drv;
2ec600d6 563 struct vif_params params;
55682965
JB		 564 int err, ifindex;
565 enum nl80211_iftype type;
566 struct net_device *dev;
92ffe055 567 u32 _flags, *flags = NULL;
55682965 568
2ec600d6
LCC		 569 memset(&params, 0, sizeof(params));
570
bba95fef 571 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 572 if (err)
573 return err;
574 ifindex = dev->ifindex;
723b038d 575 type = dev->ieee80211_ptr->iftype;
55682965
JB		 576 dev_put(dev);
577
723b038d
JB		 578 err = -EINVAL;
579 if (info->attrs[NL80211_ATTR_IFTYPE]) {
580 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
581 if (type > NL80211_IFTYPE_MAX)
582 goto unlock;
583 }
584
f59ac048
LR		 585 if (!drv->ops->change_virtual_intf ||
586 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 587 err = -EOPNOTSUPP;
588 goto unlock;
589 }
590
92ffe055
JB		 591 if (info->attrs[NL80211_ATTR_MESH_ID]) {
592 if (type != NL80211_IFTYPE_MESH_POINT) {
593 err = -EINVAL;
594 goto unlock;
595 }
2ec600d6
LCC		 596 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
597 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
598 }
599
92ffe055
JB		 600 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
601 if (type != NL80211_IFTYPE_MONITOR) {
602 err = -EINVAL;
603 goto unlock;
604 }
605 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
606 &_flags);
607 if (!err)
608 flags = &_flags;
609 }
55682965 610 rtnl_lock();
66f7ac50 611 err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
92ffe055 612 type, flags, &params);
60719ffd
JB		 613
614 dev = __dev_get_by_index(&init_net, ifindex);
615 WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type));
616
55682965
JB		 617 rtnl_unlock();
618
619 unlock:
620 cfg80211_put_dev(drv);
621 return err;
622}
623
624static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
625{
626 struct cfg80211_registered_device *drv;
2ec600d6 627 struct vif_params params;
55682965
JB		 628 int err;
629 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
66f7ac50 630 u32 flags;
55682965 631
2ec600d6
LCC		 632 memset(&params, 0, sizeof(params));
633
55682965
JB		 634 if (!info->attrs[NL80211_ATTR_IFNAME])
635 return -EINVAL;
636
637 if (info->attrs[NL80211_ATTR_IFTYPE]) {
638 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
639 if (type > NL80211_IFTYPE_MAX)
640 return -EINVAL;
641 }
642
643 drv = cfg80211_get_dev_from_info(info);
644 if (IS_ERR(drv))
645 return PTR_ERR(drv);
646
f59ac048
LR		 647 if (!drv->ops->add_virtual_intf ||
648 !(drv->wiphy.interface_modes & (1 << type))) {
55682965
JB		 649 err = -EOPNOTSUPP;
650 goto unlock;
651 }
652
2ec600d6
LCC		 653 if (type == NL80211_IFTYPE_MESH_POINT &&
654 info->attrs[NL80211_ATTR_MESH_ID]) {
655 params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
656 params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
657 }
658
55682965 659 rtnl_lock();
66f7ac50
MW		 660 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
661 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
662 &flags);
55682965 663 err = drv->ops->add_virtual_intf(&drv->wiphy,
66f7ac50 664 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2ec600d6 665 type, err ? NULL : &flags, &params);
55682965
JB		 666 rtnl_unlock();
667
2ec600d6 668
55682965
JB		 669 unlock:
670 cfg80211_put_dev(drv);
671 return err;
672}
673
674static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
675{
676 struct cfg80211_registered_device *drv;
677 int ifindex, err;
678 struct net_device *dev;
679
bba95fef 680 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
55682965
JB		 681 if (err)
682 return err;
683 ifindex = dev->ifindex;
684 dev_put(dev);
685
686 if (!drv->ops->del_virtual_intf) {
687 err = -EOPNOTSUPP;
688 goto out;
689 }
690
691 rtnl_lock();
692 err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
693 rtnl_unlock();
694
695 out:
696 cfg80211_put_dev(drv);
697 return err;
698}
699
41ade00f
JB		 700struct get_key_cookie {
701 struct sk_buff *msg;
702 int error;
703};
704
705static void get_key_callback(void *c, struct key_params *params)
706{
707 struct get_key_cookie *cookie = c;
708
709 if (params->key)
710 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
711 params->key_len, params->key);
712
713 if (params->seq)
714 NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
715 params->seq_len, params->seq);
716
717 if (params->cipher)
718 NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
719 params->cipher);
720
721 return;
722 nla_put_failure:
723 cookie->error = 1;
724}
725
726static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
727{
728 struct cfg80211_registered_device *drv;
729 int err;
730 struct net_device *dev;
731 u8 key_idx = 0;
732 u8 *mac_addr = NULL;
733 struct get_key_cookie cookie = {
734 .error = 0,
735 };
736 void *hdr;
737 struct sk_buff *msg;
738
739 if (info->attrs[NL80211_ATTR_KEY_IDX])
740 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
741
742 if (key_idx > 3)
743 return -EINVAL;
744
745 if (info->attrs[NL80211_ATTR_MAC])
746 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
747
bba95fef 748 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 749 if (err)
750 return err;
751
752 if (!drv->ops->get_key) {
753 err = -EOPNOTSUPP;
754 goto out;
755 }
756
757 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
758 if (!msg) {
759 err = -ENOMEM;
760 goto out;
761 }
762
763 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
764 NL80211_CMD_NEW_KEY);
765
766 if (IS_ERR(hdr)) {
767 err = PTR_ERR(hdr);
768 goto out;
769 }
770
771 cookie.msg = msg;
772
773 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
774 NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
775 if (mac_addr)
776 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
777
778 rtnl_lock();
779 err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
780 &cookie, get_key_callback);
781 rtnl_unlock();
782
783 if (err)
784 goto out;
785
786 if (cookie.error)
787 goto nla_put_failure;
788
789 genlmsg_end(msg, hdr);
790 err = genlmsg_unicast(msg, info->snd_pid);
791 goto out;
792
793 nla_put_failure:
794 err = -ENOBUFS;
795 nlmsg_free(msg);
796 out:
797 cfg80211_put_dev(drv);
798 dev_put(dev);
799 return err;
800}
801
802static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
803{
804 struct cfg80211_registered_device *drv;
805 int err;
806 struct net_device *dev;
807 u8 key_idx;
808
809 if (!info->attrs[NL80211_ATTR_KEY_IDX])
810 return -EINVAL;
811
812 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
813
814 if (key_idx > 3)
815 return -EINVAL;
816
817 /* currently only support setting default key */
818 if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
819 return -EINVAL;
820
bba95fef 821 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 822 if (err)
823 return err;
824
825 if (!drv->ops->set_default_key) {
826 err = -EOPNOTSUPP;
827 goto out;
828 }
829
830 rtnl_lock();
831 err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
832 rtnl_unlock();
833
834 out:
835 cfg80211_put_dev(drv);
836 dev_put(dev);
837 return err;
838}
839
840static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
841{
842 struct cfg80211_registered_device *drv;
843 int err;
844 struct net_device *dev;
845 struct key_params params;
846 u8 key_idx = 0;
847 u8 *mac_addr = NULL;
848
849 memset(&params, 0, sizeof(params));
850
851 if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
852 return -EINVAL;
853
854 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
855 params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
856 params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
857 }
858
859 if (info->attrs[NL80211_ATTR_KEY_IDX])
860 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
861
862 params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
863
864 if (info->attrs[NL80211_ATTR_MAC])
865 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
866
867 if (key_idx > 3)
868 return -EINVAL;
869
870 /*
871 * Disallow pairwise keys with non-zero index unless it's WEP
872 * (because current deployments use pairwise WEP keys with
873 * non-zero indizes but 802.11i clearly specifies to use zero)
874 */
875 if (mac_addr && key_idx &&
876 params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
877 params.cipher != WLAN_CIPHER_SUITE_WEP104)
878 return -EINVAL;
879
880 /* TODO: add definitions for the lengths to linux/ieee80211.h */
881 switch (params.cipher) {
882 case WLAN_CIPHER_SUITE_WEP40:
883 if (params.key_len != 5)
884 return -EINVAL;
885 break;
886 case WLAN_CIPHER_SUITE_TKIP:
887 if (params.key_len != 32)
888 return -EINVAL;
889 break;
890 case WLAN_CIPHER_SUITE_CCMP:
891 if (params.key_len != 16)
892 return -EINVAL;
893 break;
894 case WLAN_CIPHER_SUITE_WEP104:
895 if (params.key_len != 13)
896 return -EINVAL;
897 break;
898 default:
899 return -EINVAL;
900 }
901
bba95fef 902 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 903 if (err)
904 return err;
905
906 if (!drv->ops->add_key) {
907 err = -EOPNOTSUPP;
908 goto out;
909 }
910
911 rtnl_lock();
912 err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, &params);
913 rtnl_unlock();
914
915 out:
916 cfg80211_put_dev(drv);
917 dev_put(dev);
918 return err;
919}
920
921static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
922{
923 struct cfg80211_registered_device *drv;
924 int err;
925 struct net_device *dev;
926 u8 key_idx = 0;
927 u8 *mac_addr = NULL;
928
929 if (info->attrs[NL80211_ATTR_KEY_IDX])
930 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
931
932 if (key_idx > 3)
933 return -EINVAL;
934
935 if (info->attrs[NL80211_ATTR_MAC])
936 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
937
bba95fef 938 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
41ade00f
JB		 939 if (err)
940 return err;
941
942 if (!drv->ops->del_key) {
943 err = -EOPNOTSUPP;
944 goto out;
945 }
946
947 rtnl_lock();
948 err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
949 rtnl_unlock();
950
951 out:
952 cfg80211_put_dev(drv);
953 dev_put(dev);
954 return err;
955}
956
ed1b6cc7
JB		 957static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
958{
959 int (*call)(struct wiphy *wiphy, struct net_device *dev,
960 struct beacon_parameters *info);
961 struct cfg80211_registered_device *drv;
962 int err;
963 struct net_device *dev;
964 struct beacon_parameters params;
965 int haveinfo = 0;
966
bba95fef 967 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 968 if (err)
969 return err;
970
971 switch (info->genlhdr->cmd) {
972 case NL80211_CMD_NEW_BEACON:
973 /* these are required for NEW_BEACON */
974 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
975 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
976 !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
977 err = -EINVAL;
978 goto out;
979 }
980
981 call = drv->ops->add_beacon;
982 break;
983 case NL80211_CMD_SET_BEACON:
984 call = drv->ops->set_beacon;
985 break;
986 default:
987 WARN_ON(1);
988 err = -EOPNOTSUPP;
989 goto out;
990 }
991
992 if (!call) {
993 err = -EOPNOTSUPP;
994 goto out;
995 }
996
997 memset(&params, 0, sizeof(params));
998
999 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
1000 params.interval =
1001 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
1002 haveinfo = 1;
1003 }
1004
1005 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
1006 params.dtim_period =
1007 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
1008 haveinfo = 1;
1009 }
1010
1011 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
1012 params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1013 params.head_len =
1014 nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
1015 haveinfo = 1;
1016 }
1017
1018 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
1019 params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1020 params.tail_len =
1021 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
1022 haveinfo = 1;
1023 }
1024
1025 if (!haveinfo) {
1026 err = -EINVAL;
1027 goto out;
1028 }
1029
1030 rtnl_lock();
1031 err = call(&drv->wiphy, dev, &params);
1032 rtnl_unlock();
1033
1034 out:
1035 cfg80211_put_dev(drv);
1036 dev_put(dev);
1037 return err;
1038}
1039
1040static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
1041{
1042 struct cfg80211_registered_device *drv;
1043 int err;
1044 struct net_device *dev;
1045
bba95fef 1046 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
ed1b6cc7
JB		 1047 if (err)
1048 return err;
1049
1050 if (!drv->ops->del_beacon) {
1051 err = -EOPNOTSUPP;
1052 goto out;
1053 }
1054
1055 rtnl_lock();
1056 err = drv->ops->del_beacon(&drv->wiphy, dev);
1057 rtnl_unlock();
1058
1059 out:
1060 cfg80211_put_dev(drv);
1061 dev_put(dev);
1062 return err;
1063}
1064
5727ef1b
JB		 1065static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
1066 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
1067 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
1068 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
1069};
1070
1071static int parse_station_flags(struct nlattr *nla, u32 *staflags)
1072{
1073 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
1074 int flag;
1075
1076 *staflags = 0;
1077
1078 if (!nla)
1079 return 0;
1080
1081 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
1082 nla, sta_flags_policy))
1083 return -EINVAL;
1084
1085 *staflags = STATION_FLAG_CHANGED;
1086
1087 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
1088 if (flags[flag])
1089 *staflags |= (1<<flag);
1090
1091 return 0;
1092}
1093
fd5b74dc
JB		 1094static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
1095 int flags, struct net_device *dev,
2ec600d6 1096 u8 *mac_addr, struct station_info *sinfo)
fd5b74dc
JB		 1097{
1098 void *hdr;
2ec600d6 1099 struct nlattr *sinfoattr;
fd5b74dc
JB		 1100
1101 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1102 if (!hdr)
1103 return -1;
1104
1105 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1106 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
1107
2ec600d6
LCC		 1108 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
1109 if (!sinfoattr)
fd5b74dc 1110 goto nla_put_failure;
2ec600d6
LCC		 1111 if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
1112 NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
1113 sinfo->inactive_time);
1114 if (sinfo->filled & STATION_INFO_RX_BYTES)
1115 NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
1116 sinfo->rx_bytes);
1117 if (sinfo->filled & STATION_INFO_TX_BYTES)
1118 NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
1119 sinfo->tx_bytes);
1120 if (sinfo->filled & STATION_INFO_LLID)
1121 NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
1122 sinfo->llid);
1123 if (sinfo->filled & STATION_INFO_PLID)
1124 NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
1125 sinfo->plid);
1126 if (sinfo->filled & STATION_INFO_PLINK_STATE)
1127 NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
1128 sinfo->plink_state);
1129
1130 nla_nest_end(msg, sinfoattr);
fd5b74dc
JB		 1131
1132 return genlmsg_end(msg, hdr);
1133
1134 nla_put_failure:
bc3ed28c
TG		 1135 genlmsg_cancel(msg, hdr);
1136 return -EMSGSIZE;
fd5b74dc
JB		 1137}
1138
2ec600d6 1139static int nl80211_dump_station(struct sk_buff *skb,
bba95fef 1140 struct netlink_callback *cb)
2ec600d6 1141{
2ec600d6
LCC		 1142 struct station_info sinfo;
1143 struct cfg80211_registered_device *dev;
bba95fef 1144 struct net_device *netdev;
2ec600d6 1145 u8 mac_addr[ETH_ALEN];
bba95fef
JB		 1146 int ifidx = cb->args[0];
1147 int sta_idx = cb->args[1];
2ec600d6 1148 int err;
2ec600d6 1149
bba95fef
JB		 1150 if (!ifidx) {
1151 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1152 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1153 nl80211_policy);
1154 if (err)
1155 return err;
2ec600d6 1156
bba95fef
JB		 1157 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1158 return -EINVAL;
2ec600d6 1159
bba95fef
JB		 1160 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1161 if (!ifidx)
1162 return -EINVAL;
2ec600d6 1163 }
2ec600d6 1164
bba95fef
JB		 1165 netdev = dev_get_by_index(&init_net, ifidx);
1166 if (!netdev)
1167 return -ENODEV;
2ec600d6 1168
bba95fef
JB		 1169 dev = cfg80211_get_dev_from_ifindex(ifidx);
1170 if (IS_ERR(dev)) {
1171 err = PTR_ERR(dev);
1172 goto out_put_netdev;
1173 }
1174
1175 if (!dev->ops->dump_station) {
1176 err = -ENOSYS;
1177 goto out_err;
1178 }
1179
1180 rtnl_lock();
1181
1182 while (1) {
1183 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
1184 mac_addr, &sinfo);
1185 if (err == -ENOENT)
1186 break;
1187 if (err)
1188 goto out_err_rtnl;
1189
1190 if (nl80211_send_station(skb,
1191 NETLINK_CB(cb->skb).pid,
1192 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1193 netdev, mac_addr,
1194 &sinfo) < 0)
1195 goto out;
1196
1197 sta_idx++;
1198 }
1199
1200
1201 out:
1202 cb->args[1] = sta_idx;
1203 err = skb->len;
1204 out_err_rtnl:
1205 rtnl_unlock();
1206 out_err:
1207 cfg80211_put_dev(dev);
1208 out_put_netdev:
1209 dev_put(netdev);
1210
1211 return err;
2ec600d6 1212}
fd5b74dc 1213
5727ef1b
JB		 1214static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
1215{
fd5b74dc
JB		 1216 struct cfg80211_registered_device *drv;
1217 int err;
1218 struct net_device *dev;
2ec600d6 1219 struct station_info sinfo;
fd5b74dc
JB		 1220 struct sk_buff *msg;
1221 u8 *mac_addr = NULL;
1222
2ec600d6 1223 memset(&sinfo, 0, sizeof(sinfo));
fd5b74dc
JB		 1224
1225 if (!info->attrs[NL80211_ATTR_MAC])
1226 return -EINVAL;
1227
1228 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1229
bba95fef 1230 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
fd5b74dc
JB		 1231 if (err)
1232 return err;
1233
1234 if (!drv->ops->get_station) {
1235 err = -EOPNOTSUPP;
1236 goto out;
1237 }
1238
1239 rtnl_lock();
2ec600d6 1240 err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
fd5b74dc
JB		 1241 rtnl_unlock();
1242
2ec600d6
LCC		 1243 if (err)
1244 goto out;
1245
fd5b74dc
JB		 1246 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1247 if (!msg)
1248 goto out;
1249
1250 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2ec600d6 1251 dev, mac_addr, &sinfo) < 0)
fd5b74dc
JB		 1252 goto out_free;
1253
1254 err = genlmsg_unicast(msg, info->snd_pid);
1255 goto out;
1256
1257 out_free:
1258 nlmsg_free(msg);
1259
1260 out:
1261 cfg80211_put_dev(drv);
1262 dev_put(dev);
1263 return err;
5727ef1b
JB		 1264}
1265
1266/*
1267 * Get vlan interface making sure it is on the right wiphy.
1268 */
1269static int get_vlan(struct nlattr *vlanattr,
1270 struct cfg80211_registered_device *rdev,
1271 struct net_device **vlan)
1272{
1273 *vlan = NULL;
1274
1275 if (vlanattr) {
1276 *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
1277 if (!*vlan)
1278 return -ENODEV;
1279 if (!(*vlan)->ieee80211_ptr)
1280 return -EINVAL;
1281 if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
1282 return -EINVAL;
1283 }
1284 return 0;
1285}
1286
1287static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
1288{
1289 struct cfg80211_registered_device *drv;
1290 int err;
1291 struct net_device *dev;
1292 struct station_parameters params;
1293 u8 *mac_addr = NULL;
1294
1295 memset(&params, 0, sizeof(params));
1296
1297 params.listen_interval = -1;
1298
1299 if (info->attrs[NL80211_ATTR_STA_AID])
1300 return -EINVAL;
1301
1302 if (!info->attrs[NL80211_ATTR_MAC])
1303 return -EINVAL;
1304
1305 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1306
1307 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
1308 params.supported_rates =
1309 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1310 params.supported_rates_len =
1311 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1312 }
1313
1314 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1315 params.listen_interval =
1316 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
1317
36aedc90
JM		 1318 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1319 params.ht_capa =
1320 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
1321
5727ef1b
JB		 1322 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1323 &params.station_flags))
1324 return -EINVAL;
1325
2ec600d6
LCC		 1326 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
1327 params.plink_action =
1328 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
1329
bba95fef 1330 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1331 if (err)
1332 return err;
1333
1334 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1335 if (err)
1336 goto out;
1337
1338 if (!drv->ops->change_station) {
1339 err = -EOPNOTSUPP;
1340 goto out;
1341 }
1342
1343 rtnl_lock();
1344 err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
1345 rtnl_unlock();
1346
1347 out:
1348 if (params.vlan)
1349 dev_put(params.vlan);
1350 cfg80211_put_dev(drv);
1351 dev_put(dev);
1352 return err;
1353}
1354
1355static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
1356{
1357 struct cfg80211_registered_device *drv;
1358 int err;
1359 struct net_device *dev;
1360 struct station_parameters params;
1361 u8 *mac_addr = NULL;
1362
1363 memset(&params, 0, sizeof(params));
1364
1365 if (!info->attrs[NL80211_ATTR_MAC])
1366 return -EINVAL;
1367
1368 if (!info->attrs[NL80211_ATTR_STA_AID])
1369 return -EINVAL;
1370
1371 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
1372 return -EINVAL;
1373
1374 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
1375 return -EINVAL;
1376
1377 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1378 params.supported_rates =
1379 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1380 params.supported_rates_len =
1381 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
1382 params.listen_interval =
1383 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
16f2e85d 1384 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
36aedc90
JM		 1385 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
1386 params.ht_capa =
1387 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5727ef1b
JB		 1388
1389 if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
1390 &params.station_flags))
1391 return -EINVAL;
1392
bba95fef 1393 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1394 if (err)
1395 return err;
1396
1397 err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
1398 if (err)
1399 goto out;
1400
1401 if (!drv->ops->add_station) {
1402 err = -EOPNOTSUPP;
1403 goto out;
1404 }
1405
1406 rtnl_lock();
1407 err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
1408 rtnl_unlock();
1409
1410 out:
1411 if (params.vlan)
1412 dev_put(params.vlan);
1413 cfg80211_put_dev(drv);
1414 dev_put(dev);
1415 return err;
1416}
1417
1418static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
1419{
1420 struct cfg80211_registered_device *drv;
1421 int err;
1422 struct net_device *dev;
1423 u8 *mac_addr = NULL;
1424
1425 if (info->attrs[NL80211_ATTR_MAC])
1426 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
1427
bba95fef 1428 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
5727ef1b
JB		 1429 if (err)
1430 return err;
1431
1432 if (!drv->ops->del_station) {
1433 err = -EOPNOTSUPP;
1434 goto out;
1435 }
1436
1437 rtnl_lock();
1438 err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
1439 rtnl_unlock();
1440
1441 out:
1442 cfg80211_put_dev(drv);
1443 dev_put(dev);
1444 return err;
1445}
1446
2ec600d6
LCC		 1447static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
1448 int flags, struct net_device *dev,
1449 u8 *dst, u8 *next_hop,
1450 struct mpath_info *pinfo)
1451{
1452 void *hdr;
1453 struct nlattr *pinfoattr;
1454
1455 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
1456 if (!hdr)
1457 return -1;
1458
1459 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1460 NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
1461 NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
1462
1463 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
1464 if (!pinfoattr)
1465 goto nla_put_failure;
1466 if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
1467 NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
1468 pinfo->frame_qlen);
1469 if (pinfo->filled & MPATH_INFO_DSN)
1470 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
1471 pinfo->dsn);
1472 if (pinfo->filled & MPATH_INFO_METRIC)
1473 NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
1474 pinfo->metric);
1475 if (pinfo->filled & MPATH_INFO_EXPTIME)
1476 NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
1477 pinfo->exptime);
1478 if (pinfo->filled & MPATH_INFO_FLAGS)
1479 NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
1480 pinfo->flags);
1481 if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
1482 NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
1483 pinfo->discovery_timeout);
1484 if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
1485 NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
1486 pinfo->discovery_retries);
1487
1488 nla_nest_end(msg, pinfoattr);
1489
1490 return genlmsg_end(msg, hdr);
1491
1492 nla_put_failure:
bc3ed28c
TG		 1493 genlmsg_cancel(msg, hdr);
1494 return -EMSGSIZE;
2ec600d6
LCC		 1495}
1496
1497static int nl80211_dump_mpath(struct sk_buff *skb,
bba95fef 1498 struct netlink_callback *cb)
2ec600d6 1499{
2ec600d6
LCC		 1500 struct mpath_info pinfo;
1501 struct cfg80211_registered_device *dev;
bba95fef 1502 struct net_device *netdev;
2ec600d6
LCC		 1503 u8 dst[ETH_ALEN];
1504 u8 next_hop[ETH_ALEN];
bba95fef
JB		 1505 int ifidx = cb->args[0];
1506 int path_idx = cb->args[1];
2ec600d6 1507 int err;
2ec600d6 1508
bba95fef
JB		 1509 if (!ifidx) {
1510 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1511 nl80211_fam.attrbuf, nl80211_fam.maxattr,
1512 nl80211_policy);
1513 if (err)
1514 return err;
1515
1516 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
1517 return -EINVAL;
1518
1519 ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
1520 if (!ifidx)
1521 return -EINVAL;
1522 }
1523
1524 netdev = dev_get_by_index(&init_net, ifidx);
1525 if (!netdev)
1526 return -ENODEV;
1527
1528 dev = cfg80211_get_dev_from_ifindex(ifidx);
1529 if (IS_ERR(dev)) {
1530 err = PTR_ERR(dev);
1531 goto out_put_netdev;
1532 }
1533
1534 if (!dev->ops->dump_mpath) {
1535 err = -ENOSYS;
1536 goto out_err;
1537 }
1538
1539 rtnl_lock();
1540
1541 while (1) {
1542 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
1543 dst, next_hop, &pinfo);
1544 if (err == -ENOENT)
2ec600d6 1545 break;
bba95fef
JB		 1546 if (err)
1547 goto out_err_rtnl;
2ec600d6 1548
bba95fef
JB		 1549 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
1550 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1551 netdev, dst, next_hop,
1552 &pinfo) < 0)
1553 goto out;
2ec600d6 1554
bba95fef 1555 path_idx++;
2ec600d6 1556 }
2ec600d6 1557
2ec600d6 1558
bba95fef
JB		 1559 out:
1560 cb->args[1] = path_idx;
1561 err = skb->len;
1562 out_err_rtnl:
1563 rtnl_unlock();
1564 out_err:
1565 cfg80211_put_dev(dev);
1566 out_put_netdev:
1567 dev_put(netdev);
1568
1569 return err;
2ec600d6
LCC		 1570}
1571
1572static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
1573{
1574 struct cfg80211_registered_device *drv;
1575 int err;
1576 struct net_device *dev;
1577 struct mpath_info pinfo;
1578 struct sk_buff *msg;
1579 u8 *dst = NULL;
1580 u8 next_hop[ETH_ALEN];
1581
1582 memset(&pinfo, 0, sizeof(pinfo));
1583
1584 if (!info->attrs[NL80211_ATTR_MAC])
1585 return -EINVAL;
1586
1587 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1588
bba95fef 1589 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1590 if (err)
1591 return err;
1592
1593 if (!drv->ops->get_mpath) {
1594 err = -EOPNOTSUPP;
1595 goto out;
1596 }
1597
1598 rtnl_lock();
1599 err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
1600 rtnl_unlock();
1601
1602 if (err)
1603 goto out;
1604
1605 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1606 if (!msg)
1607 goto out;
1608
1609 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
1610 dev, dst, next_hop, &pinfo) < 0)
1611 goto out_free;
1612
1613 err = genlmsg_unicast(msg, info->snd_pid);
1614 goto out;
1615
1616 out_free:
1617 nlmsg_free(msg);
1618
1619 out:
1620 cfg80211_put_dev(drv);
1621 dev_put(dev);
1622 return err;
1623}
1624
1625static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
1626{
1627 struct cfg80211_registered_device *drv;
1628 int err;
1629 struct net_device *dev;
1630 u8 *dst = NULL;
1631 u8 *next_hop = NULL;
1632
1633 if (!info->attrs[NL80211_ATTR_MAC])
1634 return -EINVAL;
1635
1636 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1637 return -EINVAL;
1638
1639 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1640 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1641
bba95fef 1642 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1643 if (err)
1644 return err;
1645
1646 if (!drv->ops->change_mpath) {
1647 err = -EOPNOTSUPP;
1648 goto out;
1649 }
1650
1651 rtnl_lock();
1652 err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
1653 rtnl_unlock();
1654
1655 out:
1656 cfg80211_put_dev(drv);
1657 dev_put(dev);
1658 return err;
1659}
1660static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
1661{
1662 struct cfg80211_registered_device *drv;
1663 int err;
1664 struct net_device *dev;
1665 u8 *dst = NULL;
1666 u8 *next_hop = NULL;
1667
1668 if (!info->attrs[NL80211_ATTR_MAC])
1669 return -EINVAL;
1670
1671 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
1672 return -EINVAL;
1673
1674 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1675 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
1676
bba95fef 1677 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1678 if (err)
1679 return err;
1680
1681 if (!drv->ops->add_mpath) {
1682 err = -EOPNOTSUPP;
1683 goto out;
1684 }
1685
1686 rtnl_lock();
1687 err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
1688 rtnl_unlock();
1689
1690 out:
1691 cfg80211_put_dev(drv);
1692 dev_put(dev);
1693 return err;
1694}
1695
1696static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
1697{
1698 struct cfg80211_registered_device *drv;
1699 int err;
1700 struct net_device *dev;
1701 u8 *dst = NULL;
1702
1703 if (info->attrs[NL80211_ATTR_MAC])
1704 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
1705
bba95fef 1706 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
2ec600d6
LCC		 1707 if (err)
1708 return err;
1709
1710 if (!drv->ops->del_mpath) {
1711 err = -EOPNOTSUPP;
1712 goto out;
1713 }
1714
1715 rtnl_lock();
1716 err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
1717 rtnl_unlock();
1718
1719 out:
1720 cfg80211_put_dev(drv);
1721 dev_put(dev);
1722 return err;
1723}
1724
9f1ba906
JM		 1725static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
1726{
1727 struct cfg80211_registered_device *drv;
1728 int err;
1729 struct net_device *dev;
1730 struct bss_parameters params;
1731
1732 memset(&params, 0, sizeof(params));
1733 /* default to not changing parameters */
1734 params.use_cts_prot = -1;
1735 params.use_short_preamble = -1;
1736 params.use_short_slot_time = -1;
1737
1738 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
1739 params.use_cts_prot =
1740 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
1741 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
1742 params.use_short_preamble =
1743 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
1744 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
1745 params.use_short_slot_time =
1746 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
90c97a04
JM		 1747 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
1748 params.basic_rates =
1749 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1750 params.basic_rates_len =
1751 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
1752 }
9f1ba906
JM		 1753
1754 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1755 if (err)
1756 return err;
1757
1758 if (!drv->ops->change_bss) {
1759 err = -EOPNOTSUPP;
1760 goto out;
1761 }
1762
1763 rtnl_lock();
1764 err = drv->ops->change_bss(&drv->wiphy, dev, &params);
1765 rtnl_unlock();
1766
1767 out:
1768 cfg80211_put_dev(drv);
1769 dev_put(dev);
1770 return err;
1771}
1772
b2e1b302
LR		 1773static const struct nla_policy
1774 reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
1775 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
1776 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
1777 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
1778 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
1779 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
1780 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
1781};
1782
1783static int parse_reg_rule(struct nlattr *tb[],
1784 struct ieee80211_reg_rule *reg_rule)
1785{
1786 struct ieee80211_freq_range *freq_range = &reg_rule->freq_range;
1787 struct ieee80211_power_rule *power_rule = &reg_rule->power_rule;
1788
1789 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
1790 return -EINVAL;
1791 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
1792 return -EINVAL;
1793 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
1794 return -EINVAL;
1795 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
1796 return -EINVAL;
1797 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
1798 return -EINVAL;
1799
1800 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
1801
1802 freq_range->start_freq_khz =
1803 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
1804 freq_range->end_freq_khz =
1805 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
1806 freq_range->max_bandwidth_khz =
1807 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
1808
1809 power_rule->max_eirp =
1810 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
1811
1812 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
1813 power_rule->max_antenna_gain =
1814 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
1815
1816 return 0;
1817}
1818
1819static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
1820{
1821 int r;
1822 char *data = NULL;
1823
1824 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
1825 return -EINVAL;
1826
1827 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
1828
1829#ifdef CONFIG_WIRELESS_OLD_REGULATORY
1830 /* We ignore world regdom requests with the old regdom setup */
1831 if (is_world_regdom(data))
1832 return -EINVAL;
1833#endif
1834 mutex_lock(&cfg80211_drv_mutex);
3f2355cb 1835 r = __regulatory_hint(NULL, REGDOM_SET_BY_USER, data, 0, ENVIRON_ANY);
b2e1b302
LR		 1836 mutex_unlock(&cfg80211_drv_mutex);
1837 return r;
1838}
1839
93da9cc1 1840static int nl80211_get_mesh_params(struct sk_buff *skb,
1841 struct genl_info *info)
1842{
1843 struct cfg80211_registered_device *drv;
1844 struct mesh_config cur_params;
1845 int err;
1846 struct net_device *dev;
1847 void *hdr;
1848 struct nlattr *pinfoattr;
1849 struct sk_buff *msg;
1850
1851 /* Look up our device */
1852 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1853 if (err)
1854 return err;
1855
1856 /* Get the mesh params */
1857 rtnl_lock();
1858 err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
1859 rtnl_unlock();
1860 if (err)
1861 goto out;
1862
1863 /* Draw up a netlink message to send back */
1864 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
1865 if (!msg) {
1866 err = -ENOBUFS;
1867 goto out;
1868 }
1869 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
1870 NL80211_CMD_GET_MESH_PARAMS);
1871 if (!hdr)
1872 goto nla_put_failure;
1873 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS);
1874 if (!pinfoattr)
1875 goto nla_put_failure;
1876 NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
1877 NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
1878 cur_params.dot11MeshRetryTimeout);
1879 NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
1880 cur_params.dot11MeshConfirmTimeout);
1881 NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
1882 cur_params.dot11MeshHoldingTimeout);
1883 NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
1884 cur_params.dot11MeshMaxPeerLinks);
1885 NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES,
1886 cur_params.dot11MeshMaxRetries);
1887 NLA_PUT_U8(msg, NL80211_MESHCONF_TTL,
1888 cur_params.dot11MeshTTL);
1889 NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
1890 cur_params.auto_open_plinks);
1891 NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1892 cur_params.dot11MeshHWMPmaxPREQretries);
1893 NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
1894 cur_params.path_refresh_time);
1895 NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1896 cur_params.min_discovery_timeout);
1897 NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1898 cur_params.dot11MeshHWMPactivePathTimeout);
1899 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1900 cur_params.dot11MeshHWMPpreqMinInterval);
1901 NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1902 cur_params.dot11MeshHWMPnetDiameterTraversalTime);
1903 nla_nest_end(msg, pinfoattr);
1904 genlmsg_end(msg, hdr);
1905 err = genlmsg_unicast(msg, info->snd_pid);
1906 goto out;
1907
1908nla_put_failure:
1909 genlmsg_cancel(msg, hdr);
1910 err = -EMSGSIZE;
1911out:
1912 /* Cleanup */
1913 cfg80211_put_dev(drv);
1914 dev_put(dev);
1915 return err;
1916}
1917
1918#define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
1919do {\
1920 if (table[attr_num]) {\
1921 cfg.param = nla_fn(table[attr_num]); \
1922 mask |= (1 << (attr_num - 1)); \
1923 } \
1924} while (0);\
1925
1926static struct nla_policy
1927nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = {
1928 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
1929 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
1930 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
1931 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
1932 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
1933 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
1934 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
1935
1936 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
1937 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
1938 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
1939 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
1940 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
1941 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
1942};
1943
1944static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
1945{
1946 int err;
1947 u32 mask;
1948 struct cfg80211_registered_device *drv;
1949 struct net_device *dev;
1950 struct mesh_config cfg;
1951 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
1952 struct nlattr *parent_attr;
1953
1954 parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS];
1955 if (!parent_attr)
1956 return -EINVAL;
1957 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
1958 parent_attr, nl80211_meshconf_params_policy))
1959 return -EINVAL;
1960
1961 err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev);
1962 if (err)
1963 return err;
1964
1965 /* This makes sure that there aren't more than 32 mesh config
1966 * parameters (otherwise our bitfield scheme would not work.) */
1967 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
1968
1969 /* Fill in the params struct */
1970 mask = 0;
1971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
1972 mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16);
1973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
1974 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16);
1975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
1976 mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16);
1977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
1978 mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16);
1979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
1980 mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8);
1981 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
1982 mask, NL80211_MESHCONF_TTL, nla_get_u8);
1983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
1984 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8);
1985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
1986 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
1987 nla_get_u8);
1988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
1989 mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32);
1990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
1991 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
1992 nla_get_u16);
1993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
1994 mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
1995 nla_get_u32);
1996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
1997 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
1998 nla_get_u16);
1999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
2000 dot11MeshHWMPnetDiameterTraversalTime,
2001 mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2002 nla_get_u16);
2003
2004 /* Apply changes */
2005 rtnl_lock();
2006 err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
2007 rtnl_unlock();
2008
2009 /* cleanup */
2010 cfg80211_put_dev(drv);
2011 dev_put(dev);
2012 return err;
2013}
2014
2015#undef FILL_IN_MESH_PARAM_IF_SET
2016
b2e1b302
LR		 2017static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
2018{
2019 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
2020 struct nlattr *nl_reg_rule;
2021 char *alpha2 = NULL;
2022 int rem_reg_rules = 0, r = 0;
2023 u32 num_rules = 0, rule_idx = 0, size_of_regd;
2024 struct ieee80211_regdomain *rd = NULL;
2025
2026 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
2027 return -EINVAL;
2028
2029 if (!info->attrs[NL80211_ATTR_REG_RULES])
2030 return -EINVAL;
2031
2032 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
2033
2034 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2035 rem_reg_rules) {
2036 num_rules++;
2037 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
2038 goto bad_reg;
2039 }
2040
2041 if (!reg_is_valid_request(alpha2))
2042 return -EINVAL;
2043
2044 size_of_regd = sizeof(struct ieee80211_regdomain) +
2045 (num_rules * sizeof(struct ieee80211_reg_rule));
2046
2047 rd = kzalloc(size_of_regd, GFP_KERNEL);
2048 if (!rd)
2049 return -ENOMEM;
2050
2051 rd->n_reg_rules = num_rules;
2052 rd->alpha2[0] = alpha2[0];
2053 rd->alpha2[1] = alpha2[1];
2054
2055 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
2056 rem_reg_rules) {
2057 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
2058 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
2059 reg_rule_policy);
2060 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
2061 if (r)
2062 goto bad_reg;
2063
2064 rule_idx++;
2065
2066 if (rule_idx > NL80211_MAX_SUPP_REG_RULES)
2067 goto bad_reg;
2068 }
2069
2070 BUG_ON(rule_idx != num_rules);
2071
2072 mutex_lock(&cfg80211_drv_mutex);
2073 r = set_regdom(rd);
2074 mutex_unlock(&cfg80211_drv_mutex);
b2e1b302
LR		 2075 return r;
2076
d2372b31 2077 bad_reg:
b2e1b302
LR		 2078 kfree(rd);
2079 return -EINVAL;
2080}
2081
55682965
JB		 2082static struct genl_ops nl80211_ops[] = {
2083 {
2084 .cmd = NL80211_CMD_GET_WIPHY,
2085 .doit = nl80211_get_wiphy,
2086 .dumpit = nl80211_dump_wiphy,
2087 .policy = nl80211_policy,
2088 /* can be retrieved by unprivileged users */
2089 },
2090 {
2091 .cmd = NL80211_CMD_SET_WIPHY,
2092 .doit = nl80211_set_wiphy,
2093 .policy = nl80211_policy,
2094 .flags = GENL_ADMIN_PERM,
2095 },
2096 {
2097 .cmd = NL80211_CMD_GET_INTERFACE,
2098 .doit = nl80211_get_interface,
2099 .dumpit = nl80211_dump_interface,
2100 .policy = nl80211_policy,
2101 /* can be retrieved by unprivileged users */
2102 },
2103 {
2104 .cmd = NL80211_CMD_SET_INTERFACE,
2105 .doit = nl80211_set_interface,
2106 .policy = nl80211_policy,
2107 .flags = GENL_ADMIN_PERM,
2108 },
2109 {
2110 .cmd = NL80211_CMD_NEW_INTERFACE,
2111 .doit = nl80211_new_interface,
2112 .policy = nl80211_policy,
2113 .flags = GENL_ADMIN_PERM,
2114 },
2115 {
2116 .cmd = NL80211_CMD_DEL_INTERFACE,
2117 .doit = nl80211_del_interface,
2118 .policy = nl80211_policy,
41ade00f
JB		 2119 .flags = GENL_ADMIN_PERM,
2120 },
2121 {
2122 .cmd = NL80211_CMD_GET_KEY,
2123 .doit = nl80211_get_key,
2124 .policy = nl80211_policy,
2125 .flags = GENL_ADMIN_PERM,
2126 },
2127 {
2128 .cmd = NL80211_CMD_SET_KEY,
2129 .doit = nl80211_set_key,
2130 .policy = nl80211_policy,
2131 .flags = GENL_ADMIN_PERM,
2132 },
2133 {
2134 .cmd = NL80211_CMD_NEW_KEY,
2135 .doit = nl80211_new_key,
2136 .policy = nl80211_policy,
2137 .flags = GENL_ADMIN_PERM,
2138 },
2139 {
2140 .cmd = NL80211_CMD_DEL_KEY,
2141 .doit = nl80211_del_key,
2142 .policy = nl80211_policy,
55682965
JB		 2143 .flags = GENL_ADMIN_PERM,
2144 },
ed1b6cc7
JB		 2145 {
2146 .cmd = NL80211_CMD_SET_BEACON,
2147 .policy = nl80211_policy,
2148 .flags = GENL_ADMIN_PERM,
2149 .doit = nl80211_addset_beacon,
2150 },
2151 {
2152 .cmd = NL80211_CMD_NEW_BEACON,
2153 .policy = nl80211_policy,
2154 .flags = GENL_ADMIN_PERM,
2155 .doit = nl80211_addset_beacon,
2156 },
2157 {
2158 .cmd = NL80211_CMD_DEL_BEACON,
2159 .policy = nl80211_policy,
2160 .flags = GENL_ADMIN_PERM,
2161 .doit = nl80211_del_beacon,
2162 },
5727ef1b
JB		 2163 {
2164 .cmd = NL80211_CMD_GET_STATION,
2165 .doit = nl80211_get_station,
2ec600d6 2166 .dumpit = nl80211_dump_station,
5727ef1b
JB		 2167 .policy = nl80211_policy,
2168 .flags = GENL_ADMIN_PERM,
2169 },
2170 {
2171 .cmd = NL80211_CMD_SET_STATION,
2172 .doit = nl80211_set_station,
2173 .policy = nl80211_policy,
2174 .flags = GENL_ADMIN_PERM,
2175 },
2176 {
2177 .cmd = NL80211_CMD_NEW_STATION,
2178 .doit = nl80211_new_station,
2179 .policy = nl80211_policy,
2180 .flags = GENL_ADMIN_PERM,
2181 },
2182 {
2183 .cmd = NL80211_CMD_DEL_STATION,
2184 .doit = nl80211_del_station,
2185 .policy = nl80211_policy,
2ec600d6
LCC		 2186 .flags = GENL_ADMIN_PERM,
2187 },
2188 {
2189 .cmd = NL80211_CMD_GET_MPATH,
2190 .doit = nl80211_get_mpath,
2191 .dumpit = nl80211_dump_mpath,
2192 .policy = nl80211_policy,
2193 .flags = GENL_ADMIN_PERM,
2194 },
2195 {
2196 .cmd = NL80211_CMD_SET_MPATH,
2197 .doit = nl80211_set_mpath,
2198 .policy = nl80211_policy,
2199 .flags = GENL_ADMIN_PERM,
2200 },
2201 {
2202 .cmd = NL80211_CMD_NEW_MPATH,
2203 .doit = nl80211_new_mpath,
2204 .policy = nl80211_policy,
2205 .flags = GENL_ADMIN_PERM,
2206 },
2207 {
2208 .cmd = NL80211_CMD_DEL_MPATH,
2209 .doit = nl80211_del_mpath,
2210 .policy = nl80211_policy,
9f1ba906
JM		 2211 .flags = GENL_ADMIN_PERM,
2212 },
2213 {
2214 .cmd = NL80211_CMD_SET_BSS,
2215 .doit = nl80211_set_bss,
2216 .policy = nl80211_policy,
b2e1b302
LR		 2217 .flags = GENL_ADMIN_PERM,
2218 },
2219 {
2220 .cmd = NL80211_CMD_SET_REG,
2221 .doit = nl80211_set_reg,
2222 .policy = nl80211_policy,
2223 .flags = GENL_ADMIN_PERM,
2224 },
2225 {
2226 .cmd = NL80211_CMD_REQ_SET_REG,
2227 .doit = nl80211_req_set_reg,
2228 .policy = nl80211_policy,
93da9cc1 2229 .flags = GENL_ADMIN_PERM,
2230 },
2231 {
2232 .cmd = NL80211_CMD_GET_MESH_PARAMS,
2233 .doit = nl80211_get_mesh_params,
2234 .policy = nl80211_policy,
2235 /* can be retrieved by unprivileged users */
2236 },
2237 {
2238 .cmd = NL80211_CMD_SET_MESH_PARAMS,
2239 .doit = nl80211_set_mesh_params,
2240 .policy = nl80211_policy,
5727ef1b
JB		 2241 .flags = GENL_ADMIN_PERM,
2242 },
55682965
JB		 2243};
2244
2245/* multicast groups */
2246static struct genl_multicast_group nl80211_config_mcgrp = {
2247 .name = "config",
2248};
2249
2250/* notification functions */
2251
2252void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
2253{
2254 struct sk_buff *msg;
2255
2256 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
2257 if (!msg)
2258 return;
2259
2260 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
2261 nlmsg_free(msg);
2262 return;
2263 }
2264
2265 genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
2266}
2267
2268/* initialisation/exit functions */
2269
2270int nl80211_init(void)
2271{
2272 int err, i;
2273
2274 err = genl_register_family(&nl80211_fam);
2275 if (err)
2276 return err;
2277
2278 for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
2279 err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
2280 if (err)
2281 goto err_out;
2282 }
2283
2284 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
2285 if (err)
2286 goto err_out;
2287
2288 return 0;
2289 err_out:
2290 genl_unregister_family(&nl80211_fam);
2291 return err;
2292}
2293
2294void nl80211_exit(void)
2295{
2296 genl_unregister_family(&nl80211_fam);
2297}
kernel source for telekom puls (alcatel/mediatek)