Commit | Line | Data |
---|---|---|
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 }, | |
55682965 JB |
72 | }; |
73 | ||
74 | /* message building helper */ | |
75 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
76 | int flags, u8 cmd) | |
77 | { | |
78 | /* since there is no private header just add the generic one */ | |
79 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
80 | } | |
81 | ||
82 | /* netlink command implementations */ | |
83 | ||
84 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
85 | struct cfg80211_registered_device *dev) | |
86 | { | |
87 | void *hdr; | |
88 | ||
89 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
90 | if (!hdr) | |
91 | return -1; | |
92 | ||
93 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); | |
94 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); | |
95 | return genlmsg_end(msg, hdr); | |
96 | ||
97 | nla_put_failure: | |
98 | return genlmsg_cancel(msg, hdr); | |
99 | } | |
100 | ||
101 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
102 | { | |
103 | int idx = 0; | |
104 | int start = cb->args[0]; | |
105 | struct cfg80211_registered_device *dev; | |
106 | ||
107 | mutex_lock(&cfg80211_drv_mutex); | |
108 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
109 | if (++idx < start) | |
110 | continue; | |
111 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
112 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
113 | dev) < 0) | |
114 | break; | |
115 | } | |
116 | mutex_unlock(&cfg80211_drv_mutex); | |
117 | ||
118 | cb->args[0] = idx; | |
119 | ||
120 | return skb->len; | |
121 | } | |
122 | ||
123 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
124 | { | |
125 | struct sk_buff *msg; | |
126 | struct cfg80211_registered_device *dev; | |
127 | ||
128 | dev = cfg80211_get_dev_from_info(info); | |
129 | if (IS_ERR(dev)) | |
130 | return PTR_ERR(dev); | |
131 | ||
132 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
133 | if (!msg) | |
134 | goto out_err; | |
135 | ||
136 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
137 | goto out_free; | |
138 | ||
139 | cfg80211_put_dev(dev); | |
140 | ||
141 | return genlmsg_unicast(msg, info->snd_pid); | |
142 | ||
143 | out_free: | |
144 | nlmsg_free(msg); | |
145 | out_err: | |
146 | cfg80211_put_dev(dev); | |
147 | return -ENOBUFS; | |
148 | } | |
149 | ||
150 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
151 | { | |
152 | struct cfg80211_registered_device *rdev; | |
153 | int result; | |
154 | ||
155 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
156 | return -EINVAL; | |
157 | ||
158 | rdev = cfg80211_get_dev_from_info(info); | |
159 | if (IS_ERR(rdev)) | |
160 | return PTR_ERR(rdev); | |
161 | ||
162 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
163 | ||
164 | cfg80211_put_dev(rdev); | |
165 | return result; | |
166 | } | |
167 | ||
168 | ||
169 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
170 | struct net_device *dev) | |
171 | { | |
172 | void *hdr; | |
173 | ||
174 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
175 | if (!hdr) | |
176 | return -1; | |
177 | ||
178 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
179 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
180 | /* TODO: interface type */ | |
181 | return genlmsg_end(msg, hdr); | |
182 | ||
183 | nla_put_failure: | |
184 | return genlmsg_cancel(msg, hdr); | |
185 | } | |
186 | ||
187 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
188 | { | |
189 | int wp_idx = 0; | |
190 | int if_idx = 0; | |
191 | int wp_start = cb->args[0]; | |
192 | int if_start = cb->args[1]; | |
193 | struct cfg80211_registered_device *dev; | |
194 | struct wireless_dev *wdev; | |
195 | ||
196 | mutex_lock(&cfg80211_drv_mutex); | |
197 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
198 | if (++wp_idx < wp_start) | |
199 | continue; | |
200 | if_idx = 0; | |
201 | ||
202 | mutex_lock(&dev->devlist_mtx); | |
203 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
204 | if (++if_idx < if_start) | |
205 | continue; | |
206 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, | |
207 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
208 | wdev->netdev) < 0) | |
209 | break; | |
210 | } | |
211 | mutex_unlock(&dev->devlist_mtx); | |
212 | } | |
213 | mutex_unlock(&cfg80211_drv_mutex); | |
214 | ||
215 | cb->args[0] = wp_idx; | |
216 | cb->args[1] = if_idx; | |
217 | ||
218 | return skb->len; | |
219 | } | |
220 | ||
221 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
222 | { | |
223 | struct sk_buff *msg; | |
224 | struct cfg80211_registered_device *dev; | |
225 | struct net_device *netdev; | |
226 | int err; | |
227 | ||
228 | err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); | |
229 | if (err) | |
230 | return err; | |
231 | ||
232 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
233 | if (!msg) | |
234 | goto out_err; | |
235 | ||
236 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
237 | goto out_free; | |
238 | ||
239 | dev_put(netdev); | |
240 | cfg80211_put_dev(dev); | |
241 | ||
242 | return genlmsg_unicast(msg, info->snd_pid); | |
243 | ||
244 | out_free: | |
245 | nlmsg_free(msg); | |
246 | out_err: | |
247 | dev_put(netdev); | |
248 | cfg80211_put_dev(dev); | |
249 | return -ENOBUFS; | |
250 | } | |
251 | ||
252 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) | |
253 | { | |
254 | struct cfg80211_registered_device *drv; | |
255 | int err, ifindex; | |
256 | enum nl80211_iftype type; | |
257 | struct net_device *dev; | |
258 | ||
259 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
260 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
261 | if (type > NL80211_IFTYPE_MAX) | |
262 | return -EINVAL; | |
263 | } else | |
264 | return -EINVAL; | |
265 | ||
266 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
267 | if (err) | |
268 | return err; | |
269 | ifindex = dev->ifindex; | |
270 | dev_put(dev); | |
271 | ||
272 | if (!drv->ops->change_virtual_intf) { | |
273 | err = -EOPNOTSUPP; | |
274 | goto unlock; | |
275 | } | |
276 | ||
277 | rtnl_lock(); | |
278 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type); | |
279 | rtnl_unlock(); | |
280 | ||
281 | unlock: | |
282 | cfg80211_put_dev(drv); | |
283 | return err; | |
284 | } | |
285 | ||
286 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
287 | { | |
288 | struct cfg80211_registered_device *drv; | |
289 | int err; | |
290 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
291 | ||
292 | if (!info->attrs[NL80211_ATTR_IFNAME]) | |
293 | return -EINVAL; | |
294 | ||
295 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
296 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
297 | if (type > NL80211_IFTYPE_MAX) | |
298 | return -EINVAL; | |
299 | } | |
300 | ||
301 | drv = cfg80211_get_dev_from_info(info); | |
302 | if (IS_ERR(drv)) | |
303 | return PTR_ERR(drv); | |
304 | ||
305 | if (!drv->ops->add_virtual_intf) { | |
306 | err = -EOPNOTSUPP; | |
307 | goto unlock; | |
308 | } | |
309 | ||
310 | rtnl_lock(); | |
311 | err = drv->ops->add_virtual_intf(&drv->wiphy, | |
312 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), type); | |
313 | rtnl_unlock(); | |
314 | ||
315 | unlock: | |
316 | cfg80211_put_dev(drv); | |
317 | return err; | |
318 | } | |
319 | ||
320 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
321 | { | |
322 | struct cfg80211_registered_device *drv; | |
323 | int ifindex, err; | |
324 | struct net_device *dev; | |
325 | ||
326 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
327 | if (err) | |
328 | return err; | |
329 | ifindex = dev->ifindex; | |
330 | dev_put(dev); | |
331 | ||
332 | if (!drv->ops->del_virtual_intf) { | |
333 | err = -EOPNOTSUPP; | |
334 | goto out; | |
335 | } | |
336 | ||
337 | rtnl_lock(); | |
338 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
339 | rtnl_unlock(); | |
340 | ||
341 | out: | |
342 | cfg80211_put_dev(drv); | |
343 | return err; | |
344 | } | |
345 | ||
41ade00f JB |
346 | struct get_key_cookie { |
347 | struct sk_buff *msg; | |
348 | int error; | |
349 | }; | |
350 | ||
351 | static void get_key_callback(void *c, struct key_params *params) | |
352 | { | |
353 | struct get_key_cookie *cookie = c; | |
354 | ||
355 | if (params->key) | |
356 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
357 | params->key_len, params->key); | |
358 | ||
359 | if (params->seq) | |
360 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
361 | params->seq_len, params->seq); | |
362 | ||
363 | if (params->cipher) | |
364 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
365 | params->cipher); | |
366 | ||
367 | return; | |
368 | nla_put_failure: | |
369 | cookie->error = 1; | |
370 | } | |
371 | ||
372 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
373 | { | |
374 | struct cfg80211_registered_device *drv; | |
375 | int err; | |
376 | struct net_device *dev; | |
377 | u8 key_idx = 0; | |
378 | u8 *mac_addr = NULL; | |
379 | struct get_key_cookie cookie = { | |
380 | .error = 0, | |
381 | }; | |
382 | void *hdr; | |
383 | struct sk_buff *msg; | |
384 | ||
385 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
386 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
387 | ||
388 | if (key_idx > 3) | |
389 | return -EINVAL; | |
390 | ||
391 | if (info->attrs[NL80211_ATTR_MAC]) | |
392 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
393 | ||
394 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
395 | if (err) | |
396 | return err; | |
397 | ||
398 | if (!drv->ops->get_key) { | |
399 | err = -EOPNOTSUPP; | |
400 | goto out; | |
401 | } | |
402 | ||
403 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
404 | if (!msg) { | |
405 | err = -ENOMEM; | |
406 | goto out; | |
407 | } | |
408 | ||
409 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
410 | NL80211_CMD_NEW_KEY); | |
411 | ||
412 | if (IS_ERR(hdr)) { | |
413 | err = PTR_ERR(hdr); | |
414 | goto out; | |
415 | } | |
416 | ||
417 | cookie.msg = msg; | |
418 | ||
419 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
420 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
421 | if (mac_addr) | |
422 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
423 | ||
424 | rtnl_lock(); | |
425 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
426 | &cookie, get_key_callback); | |
427 | rtnl_unlock(); | |
428 | ||
429 | if (err) | |
430 | goto out; | |
431 | ||
432 | if (cookie.error) | |
433 | goto nla_put_failure; | |
434 | ||
435 | genlmsg_end(msg, hdr); | |
436 | err = genlmsg_unicast(msg, info->snd_pid); | |
437 | goto out; | |
438 | ||
439 | nla_put_failure: | |
440 | err = -ENOBUFS; | |
441 | nlmsg_free(msg); | |
442 | out: | |
443 | cfg80211_put_dev(drv); | |
444 | dev_put(dev); | |
445 | return err; | |
446 | } | |
447 | ||
448 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
449 | { | |
450 | struct cfg80211_registered_device *drv; | |
451 | int err; | |
452 | struct net_device *dev; | |
453 | u8 key_idx; | |
454 | ||
455 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
456 | return -EINVAL; | |
457 | ||
458 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
459 | ||
460 | if (key_idx > 3) | |
461 | return -EINVAL; | |
462 | ||
463 | /* currently only support setting default key */ | |
464 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) | |
465 | return -EINVAL; | |
466 | ||
467 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
468 | if (err) | |
469 | return err; | |
470 | ||
471 | if (!drv->ops->set_default_key) { | |
472 | err = -EOPNOTSUPP; | |
473 | goto out; | |
474 | } | |
475 | ||
476 | rtnl_lock(); | |
477 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); | |
478 | rtnl_unlock(); | |
479 | ||
480 | out: | |
481 | cfg80211_put_dev(drv); | |
482 | dev_put(dev); | |
483 | return err; | |
484 | } | |
485 | ||
486 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
487 | { | |
488 | struct cfg80211_registered_device *drv; | |
489 | int err; | |
490 | struct net_device *dev; | |
491 | struct key_params params; | |
492 | u8 key_idx = 0; | |
493 | u8 *mac_addr = NULL; | |
494 | ||
495 | memset(¶ms, 0, sizeof(params)); | |
496 | ||
497 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
498 | return -EINVAL; | |
499 | ||
500 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
501 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
502 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
503 | } | |
504 | ||
505 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
506 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
507 | ||
508 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
509 | ||
510 | if (info->attrs[NL80211_ATTR_MAC]) | |
511 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
512 | ||
513 | if (key_idx > 3) | |
514 | return -EINVAL; | |
515 | ||
516 | /* | |
517 | * Disallow pairwise keys with non-zero index unless it's WEP | |
518 | * (because current deployments use pairwise WEP keys with | |
519 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
520 | */ | |
521 | if (mac_addr && key_idx && | |
522 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
523 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
524 | return -EINVAL; | |
525 | ||
526 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
527 | switch (params.cipher) { | |
528 | case WLAN_CIPHER_SUITE_WEP40: | |
529 | if (params.key_len != 5) | |
530 | return -EINVAL; | |
531 | break; | |
532 | case WLAN_CIPHER_SUITE_TKIP: | |
533 | if (params.key_len != 32) | |
534 | return -EINVAL; | |
535 | break; | |
536 | case WLAN_CIPHER_SUITE_CCMP: | |
537 | if (params.key_len != 16) | |
538 | return -EINVAL; | |
539 | break; | |
540 | case WLAN_CIPHER_SUITE_WEP104: | |
541 | if (params.key_len != 13) | |
542 | return -EINVAL; | |
543 | break; | |
544 | default: | |
545 | return -EINVAL; | |
546 | } | |
547 | ||
548 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
549 | if (err) | |
550 | return err; | |
551 | ||
552 | if (!drv->ops->add_key) { | |
553 | err = -EOPNOTSUPP; | |
554 | goto out; | |
555 | } | |
556 | ||
557 | rtnl_lock(); | |
558 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
559 | rtnl_unlock(); | |
560 | ||
561 | out: | |
562 | cfg80211_put_dev(drv); | |
563 | dev_put(dev); | |
564 | return err; | |
565 | } | |
566 | ||
567 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
568 | { | |
569 | struct cfg80211_registered_device *drv; | |
570 | int err; | |
571 | struct net_device *dev; | |
572 | u8 key_idx = 0; | |
573 | u8 *mac_addr = NULL; | |
574 | ||
575 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
576 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
577 | ||
578 | if (key_idx > 3) | |
579 | return -EINVAL; | |
580 | ||
581 | if (info->attrs[NL80211_ATTR_MAC]) | |
582 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
583 | ||
584 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
585 | if (err) | |
586 | return err; | |
587 | ||
588 | if (!drv->ops->del_key) { | |
589 | err = -EOPNOTSUPP; | |
590 | goto out; | |
591 | } | |
592 | ||
593 | rtnl_lock(); | |
594 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
595 | rtnl_unlock(); | |
596 | ||
597 | out: | |
598 | cfg80211_put_dev(drv); | |
599 | dev_put(dev); | |
600 | return err; | |
601 | } | |
602 | ||
55682965 JB |
603 | static struct genl_ops nl80211_ops[] = { |
604 | { | |
605 | .cmd = NL80211_CMD_GET_WIPHY, | |
606 | .doit = nl80211_get_wiphy, | |
607 | .dumpit = nl80211_dump_wiphy, | |
608 | .policy = nl80211_policy, | |
609 | /* can be retrieved by unprivileged users */ | |
610 | }, | |
611 | { | |
612 | .cmd = NL80211_CMD_SET_WIPHY, | |
613 | .doit = nl80211_set_wiphy, | |
614 | .policy = nl80211_policy, | |
615 | .flags = GENL_ADMIN_PERM, | |
616 | }, | |
617 | { | |
618 | .cmd = NL80211_CMD_GET_INTERFACE, | |
619 | .doit = nl80211_get_interface, | |
620 | .dumpit = nl80211_dump_interface, | |
621 | .policy = nl80211_policy, | |
622 | /* can be retrieved by unprivileged users */ | |
623 | }, | |
624 | { | |
625 | .cmd = NL80211_CMD_SET_INTERFACE, | |
626 | .doit = nl80211_set_interface, | |
627 | .policy = nl80211_policy, | |
628 | .flags = GENL_ADMIN_PERM, | |
629 | }, | |
630 | { | |
631 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
632 | .doit = nl80211_new_interface, | |
633 | .policy = nl80211_policy, | |
634 | .flags = GENL_ADMIN_PERM, | |
635 | }, | |
636 | { | |
637 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
638 | .doit = nl80211_del_interface, | |
639 | .policy = nl80211_policy, | |
41ade00f JB |
640 | .flags = GENL_ADMIN_PERM, |
641 | }, | |
642 | { | |
643 | .cmd = NL80211_CMD_GET_KEY, | |
644 | .doit = nl80211_get_key, | |
645 | .policy = nl80211_policy, | |
646 | .flags = GENL_ADMIN_PERM, | |
647 | }, | |
648 | { | |
649 | .cmd = NL80211_CMD_SET_KEY, | |
650 | .doit = nl80211_set_key, | |
651 | .policy = nl80211_policy, | |
652 | .flags = GENL_ADMIN_PERM, | |
653 | }, | |
654 | { | |
655 | .cmd = NL80211_CMD_NEW_KEY, | |
656 | .doit = nl80211_new_key, | |
657 | .policy = nl80211_policy, | |
658 | .flags = GENL_ADMIN_PERM, | |
659 | }, | |
660 | { | |
661 | .cmd = NL80211_CMD_DEL_KEY, | |
662 | .doit = nl80211_del_key, | |
663 | .policy = nl80211_policy, | |
55682965 JB |
664 | .flags = GENL_ADMIN_PERM, |
665 | }, | |
666 | }; | |
667 | ||
668 | /* multicast groups */ | |
669 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
670 | .name = "config", | |
671 | }; | |
672 | ||
673 | /* notification functions */ | |
674 | ||
675 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
676 | { | |
677 | struct sk_buff *msg; | |
678 | ||
679 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
680 | if (!msg) | |
681 | return; | |
682 | ||
683 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
684 | nlmsg_free(msg); | |
685 | return; | |
686 | } | |
687 | ||
688 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
689 | } | |
690 | ||
691 | /* initialisation/exit functions */ | |
692 | ||
693 | int nl80211_init(void) | |
694 | { | |
695 | int err, i; | |
696 | ||
697 | err = genl_register_family(&nl80211_fam); | |
698 | if (err) | |
699 | return err; | |
700 | ||
701 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
702 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
703 | if (err) | |
704 | goto err_out; | |
705 | } | |
706 | ||
707 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
708 | if (err) | |
709 | goto err_out; | |
710 | ||
711 | return 0; | |
712 | err_out: | |
713 | genl_unregister_family(&nl80211_fam); | |
714 | return err; | |
715 | } | |
716 | ||
717 | void nl80211_exit(void) | |
718 | { | |
719 | genl_unregister_family(&nl80211_fam); | |
720 | } |