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Commit | Line | Data |
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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" | |
21 | ||
22 | /* the netlink family */ | |
23 | static struct genl_family nl80211_fam = { | |
24 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
25 | .name = "nl80211", /* have users key off the name instead */ | |
26 | .hdrsize = 0, /* no private header */ | |
27 | .version = 1, /* no particular meaning now */ | |
28 | .maxattr = NL80211_ATTR_MAX, | |
29 | }; | |
30 | ||
31 | /* internal helper: get drv and dev */ | |
32 | static int get_drv_dev_by_info_ifindex(struct genl_info *info, | |
33 | struct cfg80211_registered_device **drv, | |
34 | struct net_device **dev) | |
35 | { | |
36 | int ifindex; | |
37 | ||
38 | if (!info->attrs[NL80211_ATTR_IFINDEX]) | |
39 | return -EINVAL; | |
40 | ||
41 | ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
42 | *dev = dev_get_by_index(&init_net, ifindex); | |
43 | if (!*dev) | |
44 | return -ENODEV; | |
45 | ||
46 | *drv = cfg80211_get_dev_from_ifindex(ifindex); | |
47 | if (IS_ERR(*drv)) { | |
48 | dev_put(*dev); | |
49 | return PTR_ERR(*drv); | |
50 | } | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
55 | /* policy for the attributes */ | |
56 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
57 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
58 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
59 | .len = BUS_ID_SIZE-1 }, | |
60 | ||
61 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
62 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
63 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
64 | |
65 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
66 | ||
67 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
68 | .len = WLAN_MAX_KEY_LEN }, | |
69 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
70 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
71 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
ed1b6cc7 JB |
72 | |
73 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
74 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
76 | .len = IEEE80211_MAX_DATA_LEN }, | |
77 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
78 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
79 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
80 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
81 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
82 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
83 | .len = NL80211_MAX_SUPP_RATES }, | |
84 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, | |
66f7ac50 | 85 | [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, |
55682965 JB |
86 | }; |
87 | ||
88 | /* message building helper */ | |
89 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
90 | int flags, u8 cmd) | |
91 | { | |
92 | /* since there is no private header just add the generic one */ | |
93 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
94 | } | |
95 | ||
96 | /* netlink command implementations */ | |
97 | ||
98 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
99 | struct cfg80211_registered_device *dev) | |
100 | { | |
101 | void *hdr; | |
ee688b00 JB |
102 | struct nlattr *nl_bands, *nl_band; |
103 | struct nlattr *nl_freqs, *nl_freq; | |
104 | struct nlattr *nl_rates, *nl_rate; | |
105 | enum ieee80211_band band; | |
106 | struct ieee80211_channel *chan; | |
107 | struct ieee80211_rate *rate; | |
108 | int i; | |
55682965 JB |
109 | |
110 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
111 | if (!hdr) | |
112 | return -1; | |
113 | ||
114 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); | |
115 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); | |
ee688b00 JB |
116 | |
117 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
118 | if (!nl_bands) | |
119 | goto nla_put_failure; | |
120 | ||
121 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
122 | if (!dev->wiphy.bands[band]) | |
123 | continue; | |
124 | ||
125 | nl_band = nla_nest_start(msg, band); | |
126 | if (!nl_band) | |
127 | goto nla_put_failure; | |
128 | ||
129 | /* add frequencies */ | |
130 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
131 | if (!nl_freqs) | |
132 | goto nla_put_failure; | |
133 | ||
134 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
135 | nl_freq = nla_nest_start(msg, i); | |
136 | if (!nl_freq) | |
137 | goto nla_put_failure; | |
138 | ||
139 | chan = &dev->wiphy.bands[band]->channels[i]; | |
140 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
141 | chan->center_freq); | |
142 | ||
143 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
144 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
145 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
146 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
147 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
148 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
149 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
150 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
151 | ||
152 | nla_nest_end(msg, nl_freq); | |
153 | } | |
154 | ||
155 | nla_nest_end(msg, nl_freqs); | |
156 | ||
157 | /* add bitrates */ | |
158 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
159 | if (!nl_rates) | |
160 | goto nla_put_failure; | |
161 | ||
162 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
163 | nl_rate = nla_nest_start(msg, i); | |
164 | if (!nl_rate) | |
165 | goto nla_put_failure; | |
166 | ||
167 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
168 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
169 | rate->bitrate); | |
170 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
171 | NLA_PUT_FLAG(msg, | |
172 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
173 | ||
174 | nla_nest_end(msg, nl_rate); | |
175 | } | |
176 | ||
177 | nla_nest_end(msg, nl_rates); | |
178 | ||
179 | nla_nest_end(msg, nl_band); | |
180 | } | |
181 | nla_nest_end(msg, nl_bands); | |
182 | ||
55682965 JB |
183 | return genlmsg_end(msg, hdr); |
184 | ||
185 | nla_put_failure: | |
186 | return genlmsg_cancel(msg, hdr); | |
187 | } | |
188 | ||
189 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
190 | { | |
191 | int idx = 0; | |
192 | int start = cb->args[0]; | |
193 | struct cfg80211_registered_device *dev; | |
194 | ||
195 | mutex_lock(&cfg80211_drv_mutex); | |
196 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
197 | if (++idx < start) | |
198 | continue; | |
199 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
200 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
201 | dev) < 0) | |
202 | break; | |
203 | } | |
204 | mutex_unlock(&cfg80211_drv_mutex); | |
205 | ||
206 | cb->args[0] = idx; | |
207 | ||
208 | return skb->len; | |
209 | } | |
210 | ||
211 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
212 | { | |
213 | struct sk_buff *msg; | |
214 | struct cfg80211_registered_device *dev; | |
215 | ||
216 | dev = cfg80211_get_dev_from_info(info); | |
217 | if (IS_ERR(dev)) | |
218 | return PTR_ERR(dev); | |
219 | ||
220 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
221 | if (!msg) | |
222 | goto out_err; | |
223 | ||
224 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
225 | goto out_free; | |
226 | ||
227 | cfg80211_put_dev(dev); | |
228 | ||
229 | return genlmsg_unicast(msg, info->snd_pid); | |
230 | ||
231 | out_free: | |
232 | nlmsg_free(msg); | |
233 | out_err: | |
234 | cfg80211_put_dev(dev); | |
235 | return -ENOBUFS; | |
236 | } | |
237 | ||
238 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
239 | { | |
240 | struct cfg80211_registered_device *rdev; | |
241 | int result; | |
242 | ||
243 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
244 | return -EINVAL; | |
245 | ||
246 | rdev = cfg80211_get_dev_from_info(info); | |
247 | if (IS_ERR(rdev)) | |
248 | return PTR_ERR(rdev); | |
249 | ||
250 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
251 | ||
252 | cfg80211_put_dev(rdev); | |
253 | return result; | |
254 | } | |
255 | ||
256 | ||
257 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
258 | struct net_device *dev) | |
259 | { | |
260 | void *hdr; | |
261 | ||
262 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
263 | if (!hdr) | |
264 | return -1; | |
265 | ||
266 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
267 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
268 | /* TODO: interface type */ | |
269 | return genlmsg_end(msg, hdr); | |
270 | ||
271 | nla_put_failure: | |
272 | return genlmsg_cancel(msg, hdr); | |
273 | } | |
274 | ||
275 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
276 | { | |
277 | int wp_idx = 0; | |
278 | int if_idx = 0; | |
279 | int wp_start = cb->args[0]; | |
280 | int if_start = cb->args[1]; | |
281 | struct cfg80211_registered_device *dev; | |
282 | struct wireless_dev *wdev; | |
283 | ||
284 | mutex_lock(&cfg80211_drv_mutex); | |
285 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
286 | if (++wp_idx < wp_start) | |
287 | continue; | |
288 | if_idx = 0; | |
289 | ||
290 | mutex_lock(&dev->devlist_mtx); | |
291 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
292 | if (++if_idx < if_start) | |
293 | continue; | |
294 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, | |
295 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
296 | wdev->netdev) < 0) | |
297 | break; | |
298 | } | |
299 | mutex_unlock(&dev->devlist_mtx); | |
300 | } | |
301 | mutex_unlock(&cfg80211_drv_mutex); | |
302 | ||
303 | cb->args[0] = wp_idx; | |
304 | cb->args[1] = if_idx; | |
305 | ||
306 | return skb->len; | |
307 | } | |
308 | ||
309 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
310 | { | |
311 | struct sk_buff *msg; | |
312 | struct cfg80211_registered_device *dev; | |
313 | struct net_device *netdev; | |
314 | int err; | |
315 | ||
316 | err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); | |
317 | if (err) | |
318 | return err; | |
319 | ||
320 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
321 | if (!msg) | |
322 | goto out_err; | |
323 | ||
324 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
325 | goto out_free; | |
326 | ||
327 | dev_put(netdev); | |
328 | cfg80211_put_dev(dev); | |
329 | ||
330 | return genlmsg_unicast(msg, info->snd_pid); | |
331 | ||
332 | out_free: | |
333 | nlmsg_free(msg); | |
334 | out_err: | |
335 | dev_put(netdev); | |
336 | cfg80211_put_dev(dev); | |
337 | return -ENOBUFS; | |
338 | } | |
339 | ||
66f7ac50 MW |
340 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
341 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
342 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
343 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
344 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
345 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
346 | }; | |
347 | ||
348 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
349 | { | |
350 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
351 | int flag; | |
352 | ||
353 | *mntrflags = 0; | |
354 | ||
355 | if (!nla) | |
356 | return -EINVAL; | |
357 | ||
358 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
359 | nla, mntr_flags_policy)) | |
360 | return -EINVAL; | |
361 | ||
362 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
363 | if (flags[flag]) | |
364 | *mntrflags |= (1<<flag); | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
55682965 JB |
369 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
370 | { | |
371 | struct cfg80211_registered_device *drv; | |
372 | int err, ifindex; | |
373 | enum nl80211_iftype type; | |
374 | struct net_device *dev; | |
66f7ac50 | 375 | u32 flags; |
55682965 JB |
376 | |
377 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
378 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
379 | if (type > NL80211_IFTYPE_MAX) | |
380 | return -EINVAL; | |
381 | } else | |
382 | return -EINVAL; | |
383 | ||
384 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
385 | if (err) | |
386 | return err; | |
387 | ifindex = dev->ifindex; | |
388 | dev_put(dev); | |
389 | ||
390 | if (!drv->ops->change_virtual_intf) { | |
391 | err = -EOPNOTSUPP; | |
392 | goto unlock; | |
393 | } | |
394 | ||
395 | rtnl_lock(); | |
66f7ac50 MW |
396 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
397 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
398 | &flags); | |
399 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
400 | type, err ? NULL : &flags); | |
55682965 JB |
401 | rtnl_unlock(); |
402 | ||
403 | unlock: | |
404 | cfg80211_put_dev(drv); | |
405 | return err; | |
406 | } | |
407 | ||
408 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
409 | { | |
410 | struct cfg80211_registered_device *drv; | |
411 | int err; | |
412 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 413 | u32 flags; |
55682965 JB |
414 | |
415 | if (!info->attrs[NL80211_ATTR_IFNAME]) | |
416 | return -EINVAL; | |
417 | ||
418 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
419 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
420 | if (type > NL80211_IFTYPE_MAX) | |
421 | return -EINVAL; | |
422 | } | |
423 | ||
424 | drv = cfg80211_get_dev_from_info(info); | |
425 | if (IS_ERR(drv)) | |
426 | return PTR_ERR(drv); | |
427 | ||
428 | if (!drv->ops->add_virtual_intf) { | |
429 | err = -EOPNOTSUPP; | |
430 | goto unlock; | |
431 | } | |
432 | ||
433 | rtnl_lock(); | |
66f7ac50 MW |
434 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
435 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
436 | &flags); | |
55682965 | 437 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 MW |
438 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
439 | type, err ? NULL : &flags); | |
55682965 JB |
440 | rtnl_unlock(); |
441 | ||
442 | unlock: | |
443 | cfg80211_put_dev(drv); | |
444 | return err; | |
445 | } | |
446 | ||
447 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
448 | { | |
449 | struct cfg80211_registered_device *drv; | |
450 | int ifindex, err; | |
451 | struct net_device *dev; | |
452 | ||
453 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
454 | if (err) | |
455 | return err; | |
456 | ifindex = dev->ifindex; | |
457 | dev_put(dev); | |
458 | ||
459 | if (!drv->ops->del_virtual_intf) { | |
460 | err = -EOPNOTSUPP; | |
461 | goto out; | |
462 | } | |
463 | ||
464 | rtnl_lock(); | |
465 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
466 | rtnl_unlock(); | |
467 | ||
468 | out: | |
469 | cfg80211_put_dev(drv); | |
470 | return err; | |
471 | } | |
472 | ||
41ade00f JB |
473 | struct get_key_cookie { |
474 | struct sk_buff *msg; | |
475 | int error; | |
476 | }; | |
477 | ||
478 | static void get_key_callback(void *c, struct key_params *params) | |
479 | { | |
480 | struct get_key_cookie *cookie = c; | |
481 | ||
482 | if (params->key) | |
483 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
484 | params->key_len, params->key); | |
485 | ||
486 | if (params->seq) | |
487 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
488 | params->seq_len, params->seq); | |
489 | ||
490 | if (params->cipher) | |
491 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
492 | params->cipher); | |
493 | ||
494 | return; | |
495 | nla_put_failure: | |
496 | cookie->error = 1; | |
497 | } | |
498 | ||
499 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
500 | { | |
501 | struct cfg80211_registered_device *drv; | |
502 | int err; | |
503 | struct net_device *dev; | |
504 | u8 key_idx = 0; | |
505 | u8 *mac_addr = NULL; | |
506 | struct get_key_cookie cookie = { | |
507 | .error = 0, | |
508 | }; | |
509 | void *hdr; | |
510 | struct sk_buff *msg; | |
511 | ||
512 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
513 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
514 | ||
515 | if (key_idx > 3) | |
516 | return -EINVAL; | |
517 | ||
518 | if (info->attrs[NL80211_ATTR_MAC]) | |
519 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
520 | ||
521 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
522 | if (err) | |
523 | return err; | |
524 | ||
525 | if (!drv->ops->get_key) { | |
526 | err = -EOPNOTSUPP; | |
527 | goto out; | |
528 | } | |
529 | ||
530 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
531 | if (!msg) { | |
532 | err = -ENOMEM; | |
533 | goto out; | |
534 | } | |
535 | ||
536 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
537 | NL80211_CMD_NEW_KEY); | |
538 | ||
539 | if (IS_ERR(hdr)) { | |
540 | err = PTR_ERR(hdr); | |
541 | goto out; | |
542 | } | |
543 | ||
544 | cookie.msg = msg; | |
545 | ||
546 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
547 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
548 | if (mac_addr) | |
549 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
550 | ||
551 | rtnl_lock(); | |
552 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
553 | &cookie, get_key_callback); | |
554 | rtnl_unlock(); | |
555 | ||
556 | if (err) | |
557 | goto out; | |
558 | ||
559 | if (cookie.error) | |
560 | goto nla_put_failure; | |
561 | ||
562 | genlmsg_end(msg, hdr); | |
563 | err = genlmsg_unicast(msg, info->snd_pid); | |
564 | goto out; | |
565 | ||
566 | nla_put_failure: | |
567 | err = -ENOBUFS; | |
568 | nlmsg_free(msg); | |
569 | out: | |
570 | cfg80211_put_dev(drv); | |
571 | dev_put(dev); | |
572 | return err; | |
573 | } | |
574 | ||
575 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
576 | { | |
577 | struct cfg80211_registered_device *drv; | |
578 | int err; | |
579 | struct net_device *dev; | |
580 | u8 key_idx; | |
581 | ||
582 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
583 | return -EINVAL; | |
584 | ||
585 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
586 | ||
587 | if (key_idx > 3) | |
588 | return -EINVAL; | |
589 | ||
590 | /* currently only support setting default key */ | |
591 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) | |
592 | return -EINVAL; | |
593 | ||
594 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
595 | if (err) | |
596 | return err; | |
597 | ||
598 | if (!drv->ops->set_default_key) { | |
599 | err = -EOPNOTSUPP; | |
600 | goto out; | |
601 | } | |
602 | ||
603 | rtnl_lock(); | |
604 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); | |
605 | rtnl_unlock(); | |
606 | ||
607 | out: | |
608 | cfg80211_put_dev(drv); | |
609 | dev_put(dev); | |
610 | return err; | |
611 | } | |
612 | ||
613 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
614 | { | |
615 | struct cfg80211_registered_device *drv; | |
616 | int err; | |
617 | struct net_device *dev; | |
618 | struct key_params params; | |
619 | u8 key_idx = 0; | |
620 | u8 *mac_addr = NULL; | |
621 | ||
622 | memset(¶ms, 0, sizeof(params)); | |
623 | ||
624 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
625 | return -EINVAL; | |
626 | ||
627 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
628 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
629 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
630 | } | |
631 | ||
632 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
633 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
634 | ||
635 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
636 | ||
637 | if (info->attrs[NL80211_ATTR_MAC]) | |
638 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
639 | ||
640 | if (key_idx > 3) | |
641 | return -EINVAL; | |
642 | ||
643 | /* | |
644 | * Disallow pairwise keys with non-zero index unless it's WEP | |
645 | * (because current deployments use pairwise WEP keys with | |
646 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
647 | */ | |
648 | if (mac_addr && key_idx && | |
649 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
650 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
651 | return -EINVAL; | |
652 | ||
653 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
654 | switch (params.cipher) { | |
655 | case WLAN_CIPHER_SUITE_WEP40: | |
656 | if (params.key_len != 5) | |
657 | return -EINVAL; | |
658 | break; | |
659 | case WLAN_CIPHER_SUITE_TKIP: | |
660 | if (params.key_len != 32) | |
661 | return -EINVAL; | |
662 | break; | |
663 | case WLAN_CIPHER_SUITE_CCMP: | |
664 | if (params.key_len != 16) | |
665 | return -EINVAL; | |
666 | break; | |
667 | case WLAN_CIPHER_SUITE_WEP104: | |
668 | if (params.key_len != 13) | |
669 | return -EINVAL; | |
670 | break; | |
671 | default: | |
672 | return -EINVAL; | |
673 | } | |
674 | ||
675 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
676 | if (err) | |
677 | return err; | |
678 | ||
679 | if (!drv->ops->add_key) { | |
680 | err = -EOPNOTSUPP; | |
681 | goto out; | |
682 | } | |
683 | ||
684 | rtnl_lock(); | |
685 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
686 | rtnl_unlock(); | |
687 | ||
688 | out: | |
689 | cfg80211_put_dev(drv); | |
690 | dev_put(dev); | |
691 | return err; | |
692 | } | |
693 | ||
694 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
695 | { | |
696 | struct cfg80211_registered_device *drv; | |
697 | int err; | |
698 | struct net_device *dev; | |
699 | u8 key_idx = 0; | |
700 | u8 *mac_addr = NULL; | |
701 | ||
702 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
703 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
704 | ||
705 | if (key_idx > 3) | |
706 | return -EINVAL; | |
707 | ||
708 | if (info->attrs[NL80211_ATTR_MAC]) | |
709 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
710 | ||
711 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
712 | if (err) | |
713 | return err; | |
714 | ||
715 | if (!drv->ops->del_key) { | |
716 | err = -EOPNOTSUPP; | |
717 | goto out; | |
718 | } | |
719 | ||
720 | rtnl_lock(); | |
721 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
722 | rtnl_unlock(); | |
723 | ||
724 | out: | |
725 | cfg80211_put_dev(drv); | |
726 | dev_put(dev); | |
727 | return err; | |
728 | } | |
729 | ||
ed1b6cc7 JB |
730 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
731 | { | |
732 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
733 | struct beacon_parameters *info); | |
734 | struct cfg80211_registered_device *drv; | |
735 | int err; | |
736 | struct net_device *dev; | |
737 | struct beacon_parameters params; | |
738 | int haveinfo = 0; | |
739 | ||
740 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
741 | if (err) | |
742 | return err; | |
743 | ||
744 | switch (info->genlhdr->cmd) { | |
745 | case NL80211_CMD_NEW_BEACON: | |
746 | /* these are required for NEW_BEACON */ | |
747 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
748 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
749 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
750 | err = -EINVAL; | |
751 | goto out; | |
752 | } | |
753 | ||
754 | call = drv->ops->add_beacon; | |
755 | break; | |
756 | case NL80211_CMD_SET_BEACON: | |
757 | call = drv->ops->set_beacon; | |
758 | break; | |
759 | default: | |
760 | WARN_ON(1); | |
761 | err = -EOPNOTSUPP; | |
762 | goto out; | |
763 | } | |
764 | ||
765 | if (!call) { | |
766 | err = -EOPNOTSUPP; | |
767 | goto out; | |
768 | } | |
769 | ||
770 | memset(¶ms, 0, sizeof(params)); | |
771 | ||
772 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
773 | params.interval = | |
774 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
775 | haveinfo = 1; | |
776 | } | |
777 | ||
778 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
779 | params.dtim_period = | |
780 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
781 | haveinfo = 1; | |
782 | } | |
783 | ||
784 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
785 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
786 | params.head_len = | |
787 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
788 | haveinfo = 1; | |
789 | } | |
790 | ||
791 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
792 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
793 | params.tail_len = | |
794 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
795 | haveinfo = 1; | |
796 | } | |
797 | ||
798 | if (!haveinfo) { | |
799 | err = -EINVAL; | |
800 | goto out; | |
801 | } | |
802 | ||
803 | rtnl_lock(); | |
804 | err = call(&drv->wiphy, dev, ¶ms); | |
805 | rtnl_unlock(); | |
806 | ||
807 | out: | |
808 | cfg80211_put_dev(drv); | |
809 | dev_put(dev); | |
810 | return err; | |
811 | } | |
812 | ||
813 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
814 | { | |
815 | struct cfg80211_registered_device *drv; | |
816 | int err; | |
817 | struct net_device *dev; | |
818 | ||
819 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
820 | if (err) | |
821 | return err; | |
822 | ||
823 | if (!drv->ops->del_beacon) { | |
824 | err = -EOPNOTSUPP; | |
825 | goto out; | |
826 | } | |
827 | ||
828 | rtnl_lock(); | |
829 | err = drv->ops->del_beacon(&drv->wiphy, dev); | |
830 | rtnl_unlock(); | |
831 | ||
832 | out: | |
833 | cfg80211_put_dev(drv); | |
834 | dev_put(dev); | |
835 | return err; | |
836 | } | |
837 | ||
5727ef1b JB |
838 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
839 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
840 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
841 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
842 | }; | |
843 | ||
844 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
845 | { | |
846 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
847 | int flag; | |
848 | ||
849 | *staflags = 0; | |
850 | ||
851 | if (!nla) | |
852 | return 0; | |
853 | ||
854 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
855 | nla, sta_flags_policy)) | |
856 | return -EINVAL; | |
857 | ||
858 | *staflags = STATION_FLAG_CHANGED; | |
859 | ||
860 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
861 | if (flags[flag]) | |
862 | *staflags |= (1<<flag); | |
863 | ||
864 | return 0; | |
865 | } | |
866 | ||
fd5b74dc JB |
867 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
868 | int flags, struct net_device *dev, | |
869 | u8 *mac_addr, struct station_stats *stats) | |
870 | { | |
871 | void *hdr; | |
872 | struct nlattr *statsattr; | |
873 | ||
874 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
875 | if (!hdr) | |
876 | return -1; | |
877 | ||
878 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
879 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
880 | ||
881 | statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS); | |
882 | if (!statsattr) | |
883 | goto nla_put_failure; | |
884 | if (stats->filled & STATION_STAT_INACTIVE_TIME) | |
885 | NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME, | |
886 | stats->inactive_time); | |
887 | if (stats->filled & STATION_STAT_RX_BYTES) | |
888 | NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES, | |
889 | stats->rx_bytes); | |
890 | if (stats->filled & STATION_STAT_TX_BYTES) | |
891 | NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES, | |
892 | stats->tx_bytes); | |
893 | ||
894 | nla_nest_end(msg, statsattr); | |
895 | ||
896 | return genlmsg_end(msg, hdr); | |
897 | ||
898 | nla_put_failure: | |
899 | return genlmsg_cancel(msg, hdr); | |
900 | } | |
901 | ||
902 | ||
5727ef1b JB |
903 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
904 | { | |
fd5b74dc JB |
905 | struct cfg80211_registered_device *drv; |
906 | int err; | |
907 | struct net_device *dev; | |
908 | struct station_stats stats; | |
909 | struct sk_buff *msg; | |
910 | u8 *mac_addr = NULL; | |
911 | ||
912 | memset(&stats, 0, sizeof(stats)); | |
913 | ||
914 | if (!info->attrs[NL80211_ATTR_MAC]) | |
915 | return -EINVAL; | |
916 | ||
917 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
918 | ||
919 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
920 | if (err) | |
921 | return err; | |
922 | ||
923 | if (!drv->ops->get_station) { | |
924 | err = -EOPNOTSUPP; | |
925 | goto out; | |
926 | } | |
927 | ||
928 | rtnl_lock(); | |
929 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats); | |
930 | rtnl_unlock(); | |
931 | ||
932 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
933 | if (!msg) | |
934 | goto out; | |
935 | ||
936 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
937 | dev, mac_addr, &stats) < 0) | |
938 | goto out_free; | |
939 | ||
940 | err = genlmsg_unicast(msg, info->snd_pid); | |
941 | goto out; | |
942 | ||
943 | out_free: | |
944 | nlmsg_free(msg); | |
945 | ||
946 | out: | |
947 | cfg80211_put_dev(drv); | |
948 | dev_put(dev); | |
949 | return err; | |
5727ef1b JB |
950 | } |
951 | ||
952 | /* | |
953 | * Get vlan interface making sure it is on the right wiphy. | |
954 | */ | |
955 | static int get_vlan(struct nlattr *vlanattr, | |
956 | struct cfg80211_registered_device *rdev, | |
957 | struct net_device **vlan) | |
958 | { | |
959 | *vlan = NULL; | |
960 | ||
961 | if (vlanattr) { | |
962 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
963 | if (!*vlan) | |
964 | return -ENODEV; | |
965 | if (!(*vlan)->ieee80211_ptr) | |
966 | return -EINVAL; | |
967 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
968 | return -EINVAL; | |
969 | } | |
970 | return 0; | |
971 | } | |
972 | ||
973 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
974 | { | |
975 | struct cfg80211_registered_device *drv; | |
976 | int err; | |
977 | struct net_device *dev; | |
978 | struct station_parameters params; | |
979 | u8 *mac_addr = NULL; | |
980 | ||
981 | memset(¶ms, 0, sizeof(params)); | |
982 | ||
983 | params.listen_interval = -1; | |
984 | ||
985 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
986 | return -EINVAL; | |
987 | ||
988 | if (!info->attrs[NL80211_ATTR_MAC]) | |
989 | return -EINVAL; | |
990 | ||
991 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
992 | ||
993 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
994 | params.supported_rates = | |
995 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
996 | params.supported_rates_len = | |
997 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
998 | } | |
999 | ||
1000 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1001 | params.listen_interval = | |
1002 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1003 | ||
1004 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1005 | ¶ms.station_flags)) | |
1006 | return -EINVAL; | |
1007 | ||
1008 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1009 | if (err) | |
1010 | return err; | |
1011 | ||
1012 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1013 | if (err) | |
1014 | goto out; | |
1015 | ||
1016 | if (!drv->ops->change_station) { | |
1017 | err = -EOPNOTSUPP; | |
1018 | goto out; | |
1019 | } | |
1020 | ||
1021 | rtnl_lock(); | |
1022 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1023 | rtnl_unlock(); | |
1024 | ||
1025 | out: | |
1026 | if (params.vlan) | |
1027 | dev_put(params.vlan); | |
1028 | cfg80211_put_dev(drv); | |
1029 | dev_put(dev); | |
1030 | return err; | |
1031 | } | |
1032 | ||
1033 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1034 | { | |
1035 | struct cfg80211_registered_device *drv; | |
1036 | int err; | |
1037 | struct net_device *dev; | |
1038 | struct station_parameters params; | |
1039 | u8 *mac_addr = NULL; | |
1040 | ||
1041 | memset(¶ms, 0, sizeof(params)); | |
1042 | ||
1043 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1044 | return -EINVAL; | |
1045 | ||
1046 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1047 | return -EINVAL; | |
1048 | ||
1049 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1050 | return -EINVAL; | |
1051 | ||
1052 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1053 | return -EINVAL; | |
1054 | ||
1055 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1056 | params.supported_rates = | |
1057 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1058 | params.supported_rates_len = | |
1059 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1060 | params.listen_interval = | |
1061 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1062 | params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
1063 | ||
1064 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1065 | ¶ms.station_flags)) | |
1066 | return -EINVAL; | |
1067 | ||
1068 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1069 | if (err) | |
1070 | return err; | |
1071 | ||
1072 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1073 | if (err) | |
1074 | goto out; | |
1075 | ||
1076 | if (!drv->ops->add_station) { | |
1077 | err = -EOPNOTSUPP; | |
1078 | goto out; | |
1079 | } | |
1080 | ||
1081 | rtnl_lock(); | |
1082 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1083 | rtnl_unlock(); | |
1084 | ||
1085 | out: | |
1086 | if (params.vlan) | |
1087 | dev_put(params.vlan); | |
1088 | cfg80211_put_dev(drv); | |
1089 | dev_put(dev); | |
1090 | return err; | |
1091 | } | |
1092 | ||
1093 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1094 | { | |
1095 | struct cfg80211_registered_device *drv; | |
1096 | int err; | |
1097 | struct net_device *dev; | |
1098 | u8 *mac_addr = NULL; | |
1099 | ||
1100 | if (info->attrs[NL80211_ATTR_MAC]) | |
1101 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1102 | ||
1103 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1104 | if (err) | |
1105 | return err; | |
1106 | ||
1107 | if (!drv->ops->del_station) { | |
1108 | err = -EOPNOTSUPP; | |
1109 | goto out; | |
1110 | } | |
1111 | ||
1112 | rtnl_lock(); | |
1113 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); | |
1114 | rtnl_unlock(); | |
1115 | ||
1116 | out: | |
1117 | cfg80211_put_dev(drv); | |
1118 | dev_put(dev); | |
1119 | return err; | |
1120 | } | |
1121 | ||
55682965 JB |
1122 | static struct genl_ops nl80211_ops[] = { |
1123 | { | |
1124 | .cmd = NL80211_CMD_GET_WIPHY, | |
1125 | .doit = nl80211_get_wiphy, | |
1126 | .dumpit = nl80211_dump_wiphy, | |
1127 | .policy = nl80211_policy, | |
1128 | /* can be retrieved by unprivileged users */ | |
1129 | }, | |
1130 | { | |
1131 | .cmd = NL80211_CMD_SET_WIPHY, | |
1132 | .doit = nl80211_set_wiphy, | |
1133 | .policy = nl80211_policy, | |
1134 | .flags = GENL_ADMIN_PERM, | |
1135 | }, | |
1136 | { | |
1137 | .cmd = NL80211_CMD_GET_INTERFACE, | |
1138 | .doit = nl80211_get_interface, | |
1139 | .dumpit = nl80211_dump_interface, | |
1140 | .policy = nl80211_policy, | |
1141 | /* can be retrieved by unprivileged users */ | |
1142 | }, | |
1143 | { | |
1144 | .cmd = NL80211_CMD_SET_INTERFACE, | |
1145 | .doit = nl80211_set_interface, | |
1146 | .policy = nl80211_policy, | |
1147 | .flags = GENL_ADMIN_PERM, | |
1148 | }, | |
1149 | { | |
1150 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
1151 | .doit = nl80211_new_interface, | |
1152 | .policy = nl80211_policy, | |
1153 | .flags = GENL_ADMIN_PERM, | |
1154 | }, | |
1155 | { | |
1156 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
1157 | .doit = nl80211_del_interface, | |
1158 | .policy = nl80211_policy, | |
41ade00f JB |
1159 | .flags = GENL_ADMIN_PERM, |
1160 | }, | |
1161 | { | |
1162 | .cmd = NL80211_CMD_GET_KEY, | |
1163 | .doit = nl80211_get_key, | |
1164 | .policy = nl80211_policy, | |
1165 | .flags = GENL_ADMIN_PERM, | |
1166 | }, | |
1167 | { | |
1168 | .cmd = NL80211_CMD_SET_KEY, | |
1169 | .doit = nl80211_set_key, | |
1170 | .policy = nl80211_policy, | |
1171 | .flags = GENL_ADMIN_PERM, | |
1172 | }, | |
1173 | { | |
1174 | .cmd = NL80211_CMD_NEW_KEY, | |
1175 | .doit = nl80211_new_key, | |
1176 | .policy = nl80211_policy, | |
1177 | .flags = GENL_ADMIN_PERM, | |
1178 | }, | |
1179 | { | |
1180 | .cmd = NL80211_CMD_DEL_KEY, | |
1181 | .doit = nl80211_del_key, | |
1182 | .policy = nl80211_policy, | |
55682965 JB |
1183 | .flags = GENL_ADMIN_PERM, |
1184 | }, | |
ed1b6cc7 JB |
1185 | { |
1186 | .cmd = NL80211_CMD_SET_BEACON, | |
1187 | .policy = nl80211_policy, | |
1188 | .flags = GENL_ADMIN_PERM, | |
1189 | .doit = nl80211_addset_beacon, | |
1190 | }, | |
1191 | { | |
1192 | .cmd = NL80211_CMD_NEW_BEACON, | |
1193 | .policy = nl80211_policy, | |
1194 | .flags = GENL_ADMIN_PERM, | |
1195 | .doit = nl80211_addset_beacon, | |
1196 | }, | |
1197 | { | |
1198 | .cmd = NL80211_CMD_DEL_BEACON, | |
1199 | .policy = nl80211_policy, | |
1200 | .flags = GENL_ADMIN_PERM, | |
1201 | .doit = nl80211_del_beacon, | |
1202 | }, | |
5727ef1b JB |
1203 | { |
1204 | .cmd = NL80211_CMD_GET_STATION, | |
1205 | .doit = nl80211_get_station, | |
1206 | /* TODO: implement dumpit */ | |
1207 | .policy = nl80211_policy, | |
1208 | .flags = GENL_ADMIN_PERM, | |
1209 | }, | |
1210 | { | |
1211 | .cmd = NL80211_CMD_SET_STATION, | |
1212 | .doit = nl80211_set_station, | |
1213 | .policy = nl80211_policy, | |
1214 | .flags = GENL_ADMIN_PERM, | |
1215 | }, | |
1216 | { | |
1217 | .cmd = NL80211_CMD_NEW_STATION, | |
1218 | .doit = nl80211_new_station, | |
1219 | .policy = nl80211_policy, | |
1220 | .flags = GENL_ADMIN_PERM, | |
1221 | }, | |
1222 | { | |
1223 | .cmd = NL80211_CMD_DEL_STATION, | |
1224 | .doit = nl80211_del_station, | |
1225 | .policy = nl80211_policy, | |
1226 | .flags = GENL_ADMIN_PERM, | |
1227 | }, | |
55682965 JB |
1228 | }; |
1229 | ||
1230 | /* multicast groups */ | |
1231 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
1232 | .name = "config", | |
1233 | }; | |
1234 | ||
1235 | /* notification functions */ | |
1236 | ||
1237 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
1238 | { | |
1239 | struct sk_buff *msg; | |
1240 | ||
1241 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1242 | if (!msg) | |
1243 | return; | |
1244 | ||
1245 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
1246 | nlmsg_free(msg); | |
1247 | return; | |
1248 | } | |
1249 | ||
1250 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
1251 | } | |
1252 | ||
1253 | /* initialisation/exit functions */ | |
1254 | ||
1255 | int nl80211_init(void) | |
1256 | { | |
1257 | int err, i; | |
1258 | ||
1259 | err = genl_register_family(&nl80211_fam); | |
1260 | if (err) | |
1261 | return err; | |
1262 | ||
1263 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
1264 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
1265 | if (err) | |
1266 | goto err_out; | |
1267 | } | |
1268 | ||
1269 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
1270 | if (err) | |
1271 | goto err_out; | |
1272 | ||
1273 | return 0; | |
1274 | err_out: | |
1275 | genl_unregister_family(&nl80211_fam); | |
1276 | return err; | |
1277 | } | |
1278 | ||
1279 | void nl80211_exit(void) | |
1280 | { | |
1281 | genl_unregister_family(&nl80211_fam); | |
1282 | } |