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 }, | |
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 }, | |
2ec600d6 | 84 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 85 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
66f7ac50 | 86 | [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, |
2ec600d6 LCC |
87 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
88 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
89 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
55682965 JB |
90 | }; |
91 | ||
92 | /* message building helper */ | |
93 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
94 | int flags, u8 cmd) | |
95 | { | |
96 | /* since there is no private header just add the generic one */ | |
97 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
98 | } | |
99 | ||
100 | /* netlink command implementations */ | |
101 | ||
102 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
103 | struct cfg80211_registered_device *dev) | |
104 | { | |
105 | void *hdr; | |
ee688b00 JB |
106 | struct nlattr *nl_bands, *nl_band; |
107 | struct nlattr *nl_freqs, *nl_freq; | |
108 | struct nlattr *nl_rates, *nl_rate; | |
109 | enum ieee80211_band band; | |
110 | struct ieee80211_channel *chan; | |
111 | struct ieee80211_rate *rate; | |
112 | int i; | |
55682965 JB |
113 | |
114 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
115 | if (!hdr) | |
116 | return -1; | |
117 | ||
118 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx); | |
119 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); | |
ee688b00 JB |
120 | |
121 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); | |
122 | if (!nl_bands) | |
123 | goto nla_put_failure; | |
124 | ||
125 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
126 | if (!dev->wiphy.bands[band]) | |
127 | continue; | |
128 | ||
129 | nl_band = nla_nest_start(msg, band); | |
130 | if (!nl_band) | |
131 | goto nla_put_failure; | |
132 | ||
133 | /* add frequencies */ | |
134 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
135 | if (!nl_freqs) | |
136 | goto nla_put_failure; | |
137 | ||
138 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
139 | nl_freq = nla_nest_start(msg, i); | |
140 | if (!nl_freq) | |
141 | goto nla_put_failure; | |
142 | ||
143 | chan = &dev->wiphy.bands[band]->channels[i]; | |
144 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
145 | chan->center_freq); | |
146 | ||
147 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
148 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
149 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
150 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
151 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
152 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
153 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
154 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
155 | ||
156 | nla_nest_end(msg, nl_freq); | |
157 | } | |
158 | ||
159 | nla_nest_end(msg, nl_freqs); | |
160 | ||
161 | /* add bitrates */ | |
162 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
163 | if (!nl_rates) | |
164 | goto nla_put_failure; | |
165 | ||
166 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
167 | nl_rate = nla_nest_start(msg, i); | |
168 | if (!nl_rate) | |
169 | goto nla_put_failure; | |
170 | ||
171 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
172 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
173 | rate->bitrate); | |
174 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
175 | NLA_PUT_FLAG(msg, | |
176 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
177 | ||
178 | nla_nest_end(msg, nl_rate); | |
179 | } | |
180 | ||
181 | nla_nest_end(msg, nl_rates); | |
182 | ||
183 | nla_nest_end(msg, nl_band); | |
184 | } | |
185 | nla_nest_end(msg, nl_bands); | |
186 | ||
55682965 JB |
187 | return genlmsg_end(msg, hdr); |
188 | ||
189 | nla_put_failure: | |
190 | return genlmsg_cancel(msg, hdr); | |
191 | } | |
192 | ||
193 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
194 | { | |
195 | int idx = 0; | |
196 | int start = cb->args[0]; | |
197 | struct cfg80211_registered_device *dev; | |
198 | ||
199 | mutex_lock(&cfg80211_drv_mutex); | |
200 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
201 | if (++idx < start) | |
202 | continue; | |
203 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
204 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
205 | dev) < 0) | |
206 | break; | |
207 | } | |
208 | mutex_unlock(&cfg80211_drv_mutex); | |
209 | ||
210 | cb->args[0] = idx; | |
211 | ||
212 | return skb->len; | |
213 | } | |
214 | ||
215 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
216 | { | |
217 | struct sk_buff *msg; | |
218 | struct cfg80211_registered_device *dev; | |
219 | ||
220 | dev = cfg80211_get_dev_from_info(info); | |
221 | if (IS_ERR(dev)) | |
222 | return PTR_ERR(dev); | |
223 | ||
224 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
225 | if (!msg) | |
226 | goto out_err; | |
227 | ||
228 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
229 | goto out_free; | |
230 | ||
231 | cfg80211_put_dev(dev); | |
232 | ||
233 | return genlmsg_unicast(msg, info->snd_pid); | |
234 | ||
235 | out_free: | |
236 | nlmsg_free(msg); | |
237 | out_err: | |
238 | cfg80211_put_dev(dev); | |
239 | return -ENOBUFS; | |
240 | } | |
241 | ||
242 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
243 | { | |
244 | struct cfg80211_registered_device *rdev; | |
245 | int result; | |
246 | ||
247 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
248 | return -EINVAL; | |
249 | ||
250 | rdev = cfg80211_get_dev_from_info(info); | |
251 | if (IS_ERR(rdev)) | |
252 | return PTR_ERR(rdev); | |
253 | ||
254 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
255 | ||
256 | cfg80211_put_dev(rdev); | |
257 | return result; | |
258 | } | |
259 | ||
260 | ||
261 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
262 | struct net_device *dev) | |
263 | { | |
264 | void *hdr; | |
265 | ||
266 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
267 | if (!hdr) | |
268 | return -1; | |
269 | ||
270 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
271 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
272 | /* TODO: interface type */ | |
273 | return genlmsg_end(msg, hdr); | |
274 | ||
275 | nla_put_failure: | |
276 | return genlmsg_cancel(msg, hdr); | |
277 | } | |
278 | ||
279 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
280 | { | |
281 | int wp_idx = 0; | |
282 | int if_idx = 0; | |
283 | int wp_start = cb->args[0]; | |
284 | int if_start = cb->args[1]; | |
285 | struct cfg80211_registered_device *dev; | |
286 | struct wireless_dev *wdev; | |
287 | ||
288 | mutex_lock(&cfg80211_drv_mutex); | |
289 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
290 | if (++wp_idx < wp_start) | |
291 | continue; | |
292 | if_idx = 0; | |
293 | ||
294 | mutex_lock(&dev->devlist_mtx); | |
295 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
296 | if (++if_idx < if_start) | |
297 | continue; | |
298 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, | |
299 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
300 | wdev->netdev) < 0) | |
301 | break; | |
302 | } | |
303 | mutex_unlock(&dev->devlist_mtx); | |
304 | } | |
305 | mutex_unlock(&cfg80211_drv_mutex); | |
306 | ||
307 | cb->args[0] = wp_idx; | |
308 | cb->args[1] = if_idx; | |
309 | ||
310 | return skb->len; | |
311 | } | |
312 | ||
313 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
314 | { | |
315 | struct sk_buff *msg; | |
316 | struct cfg80211_registered_device *dev; | |
317 | struct net_device *netdev; | |
318 | int err; | |
319 | ||
320 | err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); | |
321 | if (err) | |
322 | return err; | |
323 | ||
324 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
325 | if (!msg) | |
326 | goto out_err; | |
327 | ||
328 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
329 | goto out_free; | |
330 | ||
331 | dev_put(netdev); | |
332 | cfg80211_put_dev(dev); | |
333 | ||
334 | return genlmsg_unicast(msg, info->snd_pid); | |
335 | ||
336 | out_free: | |
337 | nlmsg_free(msg); | |
338 | out_err: | |
339 | dev_put(netdev); | |
340 | cfg80211_put_dev(dev); | |
341 | return -ENOBUFS; | |
342 | } | |
343 | ||
66f7ac50 MW |
344 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
345 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
346 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
347 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
348 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
349 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
350 | }; | |
351 | ||
352 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
353 | { | |
354 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
355 | int flag; | |
356 | ||
357 | *mntrflags = 0; | |
358 | ||
359 | if (!nla) | |
360 | return -EINVAL; | |
361 | ||
362 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
363 | nla, mntr_flags_policy)) | |
364 | return -EINVAL; | |
365 | ||
366 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
367 | if (flags[flag]) | |
368 | *mntrflags |= (1<<flag); | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
55682965 JB |
373 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
374 | { | |
375 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 376 | struct vif_params params; |
55682965 JB |
377 | int err, ifindex; |
378 | enum nl80211_iftype type; | |
379 | struct net_device *dev; | |
66f7ac50 | 380 | u32 flags; |
55682965 | 381 | |
2ec600d6 LCC |
382 | memset(¶ms, 0, sizeof(params)); |
383 | ||
55682965 JB |
384 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
385 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
386 | if (type > NL80211_IFTYPE_MAX) | |
387 | return -EINVAL; | |
388 | } else | |
389 | return -EINVAL; | |
390 | ||
391 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
392 | if (err) | |
393 | return err; | |
394 | ifindex = dev->ifindex; | |
395 | dev_put(dev); | |
396 | ||
397 | if (!drv->ops->change_virtual_intf) { | |
398 | err = -EOPNOTSUPP; | |
399 | goto unlock; | |
400 | } | |
401 | ||
2ec600d6 LCC |
402 | if (type == NL80211_IFTYPE_MESH_POINT && |
403 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
404 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
405 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
406 | } | |
407 | ||
55682965 | 408 | rtnl_lock(); |
66f7ac50 MW |
409 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
410 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
411 | &flags); | |
412 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
2ec600d6 | 413 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
414 | rtnl_unlock(); |
415 | ||
416 | unlock: | |
417 | cfg80211_put_dev(drv); | |
418 | return err; | |
419 | } | |
420 | ||
421 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
422 | { | |
423 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 424 | struct vif_params params; |
55682965 JB |
425 | int err; |
426 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 427 | u32 flags; |
55682965 | 428 | |
2ec600d6 LCC |
429 | memset(¶ms, 0, sizeof(params)); |
430 | ||
55682965 JB |
431 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
432 | return -EINVAL; | |
433 | ||
434 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
435 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
436 | if (type > NL80211_IFTYPE_MAX) | |
437 | return -EINVAL; | |
438 | } | |
439 | ||
440 | drv = cfg80211_get_dev_from_info(info); | |
441 | if (IS_ERR(drv)) | |
442 | return PTR_ERR(drv); | |
443 | ||
444 | if (!drv->ops->add_virtual_intf) { | |
445 | err = -EOPNOTSUPP; | |
446 | goto unlock; | |
447 | } | |
448 | ||
2ec600d6 LCC |
449 | if (type == NL80211_IFTYPE_MESH_POINT && |
450 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
451 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
452 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
453 | } | |
454 | ||
55682965 | 455 | rtnl_lock(); |
66f7ac50 MW |
456 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
457 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
458 | &flags); | |
55682965 | 459 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 460 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 461 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
462 | rtnl_unlock(); |
463 | ||
2ec600d6 | 464 | |
55682965 JB |
465 | unlock: |
466 | cfg80211_put_dev(drv); | |
467 | return err; | |
468 | } | |
469 | ||
470 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
471 | { | |
472 | struct cfg80211_registered_device *drv; | |
473 | int ifindex, err; | |
474 | struct net_device *dev; | |
475 | ||
476 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
477 | if (err) | |
478 | return err; | |
479 | ifindex = dev->ifindex; | |
480 | dev_put(dev); | |
481 | ||
482 | if (!drv->ops->del_virtual_intf) { | |
483 | err = -EOPNOTSUPP; | |
484 | goto out; | |
485 | } | |
486 | ||
487 | rtnl_lock(); | |
488 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
489 | rtnl_unlock(); | |
490 | ||
491 | out: | |
492 | cfg80211_put_dev(drv); | |
493 | return err; | |
494 | } | |
495 | ||
41ade00f JB |
496 | struct get_key_cookie { |
497 | struct sk_buff *msg; | |
498 | int error; | |
499 | }; | |
500 | ||
501 | static void get_key_callback(void *c, struct key_params *params) | |
502 | { | |
503 | struct get_key_cookie *cookie = c; | |
504 | ||
505 | if (params->key) | |
506 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
507 | params->key_len, params->key); | |
508 | ||
509 | if (params->seq) | |
510 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
511 | params->seq_len, params->seq); | |
512 | ||
513 | if (params->cipher) | |
514 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
515 | params->cipher); | |
516 | ||
517 | return; | |
518 | nla_put_failure: | |
519 | cookie->error = 1; | |
520 | } | |
521 | ||
522 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
523 | { | |
524 | struct cfg80211_registered_device *drv; | |
525 | int err; | |
526 | struct net_device *dev; | |
527 | u8 key_idx = 0; | |
528 | u8 *mac_addr = NULL; | |
529 | struct get_key_cookie cookie = { | |
530 | .error = 0, | |
531 | }; | |
532 | void *hdr; | |
533 | struct sk_buff *msg; | |
534 | ||
535 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
536 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
537 | ||
538 | if (key_idx > 3) | |
539 | return -EINVAL; | |
540 | ||
541 | if (info->attrs[NL80211_ATTR_MAC]) | |
542 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
543 | ||
544 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
545 | if (err) | |
546 | return err; | |
547 | ||
548 | if (!drv->ops->get_key) { | |
549 | err = -EOPNOTSUPP; | |
550 | goto out; | |
551 | } | |
552 | ||
553 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
554 | if (!msg) { | |
555 | err = -ENOMEM; | |
556 | goto out; | |
557 | } | |
558 | ||
559 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
560 | NL80211_CMD_NEW_KEY); | |
561 | ||
562 | if (IS_ERR(hdr)) { | |
563 | err = PTR_ERR(hdr); | |
564 | goto out; | |
565 | } | |
566 | ||
567 | cookie.msg = msg; | |
568 | ||
569 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
570 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
571 | if (mac_addr) | |
572 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
573 | ||
574 | rtnl_lock(); | |
575 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
576 | &cookie, get_key_callback); | |
577 | rtnl_unlock(); | |
578 | ||
579 | if (err) | |
580 | goto out; | |
581 | ||
582 | if (cookie.error) | |
583 | goto nla_put_failure; | |
584 | ||
585 | genlmsg_end(msg, hdr); | |
586 | err = genlmsg_unicast(msg, info->snd_pid); | |
587 | goto out; | |
588 | ||
589 | nla_put_failure: | |
590 | err = -ENOBUFS; | |
591 | nlmsg_free(msg); | |
592 | out: | |
593 | cfg80211_put_dev(drv); | |
594 | dev_put(dev); | |
595 | return err; | |
596 | } | |
597 | ||
598 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
599 | { | |
600 | struct cfg80211_registered_device *drv; | |
601 | int err; | |
602 | struct net_device *dev; | |
603 | u8 key_idx; | |
604 | ||
605 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
606 | return -EINVAL; | |
607 | ||
608 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
609 | ||
610 | if (key_idx > 3) | |
611 | return -EINVAL; | |
612 | ||
613 | /* currently only support setting default key */ | |
614 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) | |
615 | return -EINVAL; | |
616 | ||
617 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
618 | if (err) | |
619 | return err; | |
620 | ||
621 | if (!drv->ops->set_default_key) { | |
622 | err = -EOPNOTSUPP; | |
623 | goto out; | |
624 | } | |
625 | ||
626 | rtnl_lock(); | |
627 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); | |
628 | rtnl_unlock(); | |
629 | ||
630 | out: | |
631 | cfg80211_put_dev(drv); | |
632 | dev_put(dev); | |
633 | return err; | |
634 | } | |
635 | ||
636 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
637 | { | |
638 | struct cfg80211_registered_device *drv; | |
639 | int err; | |
640 | struct net_device *dev; | |
641 | struct key_params params; | |
642 | u8 key_idx = 0; | |
643 | u8 *mac_addr = NULL; | |
644 | ||
645 | memset(¶ms, 0, sizeof(params)); | |
646 | ||
647 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
648 | return -EINVAL; | |
649 | ||
650 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
651 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
652 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
653 | } | |
654 | ||
655 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
656 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
657 | ||
658 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
659 | ||
660 | if (info->attrs[NL80211_ATTR_MAC]) | |
661 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
662 | ||
663 | if (key_idx > 3) | |
664 | return -EINVAL; | |
665 | ||
666 | /* | |
667 | * Disallow pairwise keys with non-zero index unless it's WEP | |
668 | * (because current deployments use pairwise WEP keys with | |
669 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
670 | */ | |
671 | if (mac_addr && key_idx && | |
672 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
673 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
674 | return -EINVAL; | |
675 | ||
676 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
677 | switch (params.cipher) { | |
678 | case WLAN_CIPHER_SUITE_WEP40: | |
679 | if (params.key_len != 5) | |
680 | return -EINVAL; | |
681 | break; | |
682 | case WLAN_CIPHER_SUITE_TKIP: | |
683 | if (params.key_len != 32) | |
684 | return -EINVAL; | |
685 | break; | |
686 | case WLAN_CIPHER_SUITE_CCMP: | |
687 | if (params.key_len != 16) | |
688 | return -EINVAL; | |
689 | break; | |
690 | case WLAN_CIPHER_SUITE_WEP104: | |
691 | if (params.key_len != 13) | |
692 | return -EINVAL; | |
693 | break; | |
694 | default: | |
695 | return -EINVAL; | |
696 | } | |
697 | ||
698 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
699 | if (err) | |
700 | return err; | |
701 | ||
702 | if (!drv->ops->add_key) { | |
703 | err = -EOPNOTSUPP; | |
704 | goto out; | |
705 | } | |
706 | ||
707 | rtnl_lock(); | |
708 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
709 | rtnl_unlock(); | |
710 | ||
711 | out: | |
712 | cfg80211_put_dev(drv); | |
713 | dev_put(dev); | |
714 | return err; | |
715 | } | |
716 | ||
717 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
718 | { | |
719 | struct cfg80211_registered_device *drv; | |
720 | int err; | |
721 | struct net_device *dev; | |
722 | u8 key_idx = 0; | |
723 | u8 *mac_addr = NULL; | |
724 | ||
725 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
726 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
727 | ||
728 | if (key_idx > 3) | |
729 | return -EINVAL; | |
730 | ||
731 | if (info->attrs[NL80211_ATTR_MAC]) | |
732 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
733 | ||
734 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
735 | if (err) | |
736 | return err; | |
737 | ||
738 | if (!drv->ops->del_key) { | |
739 | err = -EOPNOTSUPP; | |
740 | goto out; | |
741 | } | |
742 | ||
743 | rtnl_lock(); | |
744 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
745 | rtnl_unlock(); | |
746 | ||
747 | out: | |
748 | cfg80211_put_dev(drv); | |
749 | dev_put(dev); | |
750 | return err; | |
751 | } | |
752 | ||
ed1b6cc7 JB |
753 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
754 | { | |
755 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
756 | struct beacon_parameters *info); | |
757 | struct cfg80211_registered_device *drv; | |
758 | int err; | |
759 | struct net_device *dev; | |
760 | struct beacon_parameters params; | |
761 | int haveinfo = 0; | |
762 | ||
763 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
764 | if (err) | |
765 | return err; | |
766 | ||
767 | switch (info->genlhdr->cmd) { | |
768 | case NL80211_CMD_NEW_BEACON: | |
769 | /* these are required for NEW_BEACON */ | |
770 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
771 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
772 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
773 | err = -EINVAL; | |
774 | goto out; | |
775 | } | |
776 | ||
777 | call = drv->ops->add_beacon; | |
778 | break; | |
779 | case NL80211_CMD_SET_BEACON: | |
780 | call = drv->ops->set_beacon; | |
781 | break; | |
782 | default: | |
783 | WARN_ON(1); | |
784 | err = -EOPNOTSUPP; | |
785 | goto out; | |
786 | } | |
787 | ||
788 | if (!call) { | |
789 | err = -EOPNOTSUPP; | |
790 | goto out; | |
791 | } | |
792 | ||
793 | memset(¶ms, 0, sizeof(params)); | |
794 | ||
795 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
796 | params.interval = | |
797 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
798 | haveinfo = 1; | |
799 | } | |
800 | ||
801 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
802 | params.dtim_period = | |
803 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
804 | haveinfo = 1; | |
805 | } | |
806 | ||
807 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
808 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
809 | params.head_len = | |
810 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
811 | haveinfo = 1; | |
812 | } | |
813 | ||
814 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
815 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
816 | params.tail_len = | |
817 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
818 | haveinfo = 1; | |
819 | } | |
820 | ||
821 | if (!haveinfo) { | |
822 | err = -EINVAL; | |
823 | goto out; | |
824 | } | |
825 | ||
826 | rtnl_lock(); | |
827 | err = call(&drv->wiphy, dev, ¶ms); | |
828 | rtnl_unlock(); | |
829 | ||
830 | out: | |
831 | cfg80211_put_dev(drv); | |
832 | dev_put(dev); | |
833 | return err; | |
834 | } | |
835 | ||
836 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
837 | { | |
838 | struct cfg80211_registered_device *drv; | |
839 | int err; | |
840 | struct net_device *dev; | |
841 | ||
842 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
843 | if (err) | |
844 | return err; | |
845 | ||
846 | if (!drv->ops->del_beacon) { | |
847 | err = -EOPNOTSUPP; | |
848 | goto out; | |
849 | } | |
850 | ||
851 | rtnl_lock(); | |
852 | err = drv->ops->del_beacon(&drv->wiphy, dev); | |
853 | rtnl_unlock(); | |
854 | ||
855 | out: | |
856 | cfg80211_put_dev(drv); | |
857 | dev_put(dev); | |
858 | return err; | |
859 | } | |
860 | ||
5727ef1b JB |
861 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
862 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
863 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
864 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
865 | }; | |
866 | ||
867 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
868 | { | |
869 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
870 | int flag; | |
871 | ||
872 | *staflags = 0; | |
873 | ||
874 | if (!nla) | |
875 | return 0; | |
876 | ||
877 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
878 | nla, sta_flags_policy)) | |
879 | return -EINVAL; | |
880 | ||
881 | *staflags = STATION_FLAG_CHANGED; | |
882 | ||
883 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
884 | if (flags[flag]) | |
885 | *staflags |= (1<<flag); | |
886 | ||
887 | return 0; | |
888 | } | |
889 | ||
fd5b74dc JB |
890 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
891 | int flags, struct net_device *dev, | |
2ec600d6 | 892 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
893 | { |
894 | void *hdr; | |
2ec600d6 | 895 | struct nlattr *sinfoattr; |
fd5b74dc JB |
896 | |
897 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
898 | if (!hdr) | |
899 | return -1; | |
900 | ||
901 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
902 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
903 | ||
2ec600d6 LCC |
904 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
905 | if (!sinfoattr) | |
fd5b74dc | 906 | goto nla_put_failure; |
2ec600d6 LCC |
907 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
908 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
909 | sinfo->inactive_time); | |
910 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
911 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
912 | sinfo->rx_bytes); | |
913 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
914 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
915 | sinfo->tx_bytes); | |
916 | if (sinfo->filled & STATION_INFO_LLID) | |
917 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
918 | sinfo->llid); | |
919 | if (sinfo->filled & STATION_INFO_PLID) | |
920 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
921 | sinfo->plid); | |
922 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
923 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
924 | sinfo->plink_state); | |
925 | ||
926 | nla_nest_end(msg, sinfoattr); | |
fd5b74dc JB |
927 | |
928 | return genlmsg_end(msg, hdr); | |
929 | ||
930 | nla_put_failure: | |
931 | return genlmsg_cancel(msg, hdr); | |
932 | } | |
933 | ||
2ec600d6 LCC |
934 | static int nl80211_dump_station(struct sk_buff *skb, |
935 | struct netlink_callback *cb) | |
936 | { | |
937 | int wp_idx = 0; | |
938 | int if_idx = 0; | |
939 | int sta_idx = cb->args[2]; | |
940 | int wp_start = cb->args[0]; | |
941 | int if_start = cb->args[1]; | |
942 | struct station_info sinfo; | |
943 | struct cfg80211_registered_device *dev; | |
944 | struct wireless_dev *wdev; | |
945 | u8 mac_addr[ETH_ALEN]; | |
946 | int err; | |
947 | int exit = 0; | |
948 | ||
949 | /* TODO: filter by device */ | |
950 | mutex_lock(&cfg80211_drv_mutex); | |
951 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
952 | if (exit) | |
953 | break; | |
954 | if (++wp_idx < wp_start) | |
955 | continue; | |
956 | if_idx = 0; | |
957 | ||
958 | mutex_lock(&dev->devlist_mtx); | |
959 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
960 | if (exit) | |
961 | break; | |
962 | if (++if_idx < if_start) | |
963 | continue; | |
964 | if (!dev->ops->dump_station) | |
965 | continue; | |
966 | ||
967 | for (;; ++sta_idx) { | |
968 | rtnl_lock(); | |
969 | err = dev->ops->dump_station(&dev->wiphy, | |
970 | wdev->netdev, sta_idx, mac_addr, | |
971 | &sinfo); | |
972 | rtnl_unlock(); | |
973 | if (err) { | |
974 | sta_idx = 0; | |
975 | break; | |
976 | } | |
977 | if (nl80211_send_station(skb, | |
978 | NETLINK_CB(cb->skb).pid, | |
979 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
980 | wdev->netdev, mac_addr, | |
981 | &sinfo) < 0) { | |
982 | exit = 1; | |
983 | break; | |
984 | } | |
985 | } | |
986 | } | |
987 | mutex_unlock(&dev->devlist_mtx); | |
988 | } | |
989 | mutex_unlock(&cfg80211_drv_mutex); | |
990 | ||
991 | cb->args[0] = wp_idx; | |
992 | cb->args[1] = if_idx; | |
993 | cb->args[2] = sta_idx; | |
994 | ||
995 | return skb->len; | |
996 | } | |
fd5b74dc | 997 | |
5727ef1b JB |
998 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
999 | { | |
fd5b74dc JB |
1000 | struct cfg80211_registered_device *drv; |
1001 | int err; | |
1002 | struct net_device *dev; | |
2ec600d6 | 1003 | struct station_info sinfo; |
fd5b74dc JB |
1004 | struct sk_buff *msg; |
1005 | u8 *mac_addr = NULL; | |
1006 | ||
2ec600d6 | 1007 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1008 | |
1009 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1010 | return -EINVAL; | |
1011 | ||
1012 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1013 | ||
1014 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1015 | if (err) | |
1016 | return err; | |
1017 | ||
1018 | if (!drv->ops->get_station) { | |
1019 | err = -EOPNOTSUPP; | |
1020 | goto out; | |
1021 | } | |
1022 | ||
1023 | rtnl_lock(); | |
2ec600d6 | 1024 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc JB |
1025 | rtnl_unlock(); |
1026 | ||
2ec600d6 LCC |
1027 | if (err) |
1028 | goto out; | |
1029 | ||
fd5b74dc JB |
1030 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1031 | if (!msg) | |
1032 | goto out; | |
1033 | ||
1034 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1035 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1036 | goto out_free; |
1037 | ||
1038 | err = genlmsg_unicast(msg, info->snd_pid); | |
1039 | goto out; | |
1040 | ||
1041 | out_free: | |
1042 | nlmsg_free(msg); | |
1043 | ||
1044 | out: | |
1045 | cfg80211_put_dev(drv); | |
1046 | dev_put(dev); | |
1047 | return err; | |
5727ef1b JB |
1048 | } |
1049 | ||
1050 | /* | |
1051 | * Get vlan interface making sure it is on the right wiphy. | |
1052 | */ | |
1053 | static int get_vlan(struct nlattr *vlanattr, | |
1054 | struct cfg80211_registered_device *rdev, | |
1055 | struct net_device **vlan) | |
1056 | { | |
1057 | *vlan = NULL; | |
1058 | ||
1059 | if (vlanattr) { | |
1060 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1061 | if (!*vlan) | |
1062 | return -ENODEV; | |
1063 | if (!(*vlan)->ieee80211_ptr) | |
1064 | return -EINVAL; | |
1065 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1066 | return -EINVAL; | |
1067 | } | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1072 | { | |
1073 | struct cfg80211_registered_device *drv; | |
1074 | int err; | |
1075 | struct net_device *dev; | |
1076 | struct station_parameters params; | |
1077 | u8 *mac_addr = NULL; | |
1078 | ||
1079 | memset(¶ms, 0, sizeof(params)); | |
1080 | ||
1081 | params.listen_interval = -1; | |
1082 | ||
1083 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1084 | return -EINVAL; | |
1085 | ||
1086 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1087 | return -EINVAL; | |
1088 | ||
1089 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1090 | ||
1091 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1092 | params.supported_rates = | |
1093 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1094 | params.supported_rates_len = | |
1095 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1096 | } | |
1097 | ||
1098 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1099 | params.listen_interval = | |
1100 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1101 | ||
1102 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1103 | ¶ms.station_flags)) | |
1104 | return -EINVAL; | |
1105 | ||
2ec600d6 LCC |
1106 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1107 | params.plink_action = | |
1108 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1109 | ||
5727ef1b JB |
1110 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); |
1111 | if (err) | |
1112 | return err; | |
1113 | ||
1114 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1115 | if (err) | |
1116 | goto out; | |
1117 | ||
1118 | if (!drv->ops->change_station) { | |
1119 | err = -EOPNOTSUPP; | |
1120 | goto out; | |
1121 | } | |
1122 | ||
1123 | rtnl_lock(); | |
1124 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1125 | rtnl_unlock(); | |
1126 | ||
1127 | out: | |
1128 | if (params.vlan) | |
1129 | dev_put(params.vlan); | |
1130 | cfg80211_put_dev(drv); | |
1131 | dev_put(dev); | |
1132 | return err; | |
1133 | } | |
1134 | ||
1135 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1136 | { | |
1137 | struct cfg80211_registered_device *drv; | |
1138 | int err; | |
1139 | struct net_device *dev; | |
1140 | struct station_parameters params; | |
1141 | u8 *mac_addr = NULL; | |
1142 | ||
1143 | memset(¶ms, 0, sizeof(params)); | |
1144 | ||
1145 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1146 | return -EINVAL; | |
1147 | ||
1148 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1149 | return -EINVAL; | |
1150 | ||
1151 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1152 | return -EINVAL; | |
1153 | ||
1154 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1155 | return -EINVAL; | |
1156 | ||
1157 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1158 | params.supported_rates = | |
1159 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1160 | params.supported_rates_len = | |
1161 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1162 | params.listen_interval = | |
1163 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1164 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
5727ef1b JB |
1165 | |
1166 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1167 | ¶ms.station_flags)) | |
1168 | return -EINVAL; | |
1169 | ||
1170 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1171 | if (err) | |
1172 | return err; | |
1173 | ||
1174 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1175 | if (err) | |
1176 | goto out; | |
1177 | ||
1178 | if (!drv->ops->add_station) { | |
1179 | err = -EOPNOTSUPP; | |
1180 | goto out; | |
1181 | } | |
1182 | ||
1183 | rtnl_lock(); | |
1184 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1185 | rtnl_unlock(); | |
1186 | ||
1187 | out: | |
1188 | if (params.vlan) | |
1189 | dev_put(params.vlan); | |
1190 | cfg80211_put_dev(drv); | |
1191 | dev_put(dev); | |
1192 | return err; | |
1193 | } | |
1194 | ||
1195 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1196 | { | |
1197 | struct cfg80211_registered_device *drv; | |
1198 | int err; | |
1199 | struct net_device *dev; | |
1200 | u8 *mac_addr = NULL; | |
1201 | ||
1202 | if (info->attrs[NL80211_ATTR_MAC]) | |
1203 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1204 | ||
1205 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1206 | if (err) | |
1207 | return err; | |
1208 | ||
1209 | if (!drv->ops->del_station) { | |
1210 | err = -EOPNOTSUPP; | |
1211 | goto out; | |
1212 | } | |
1213 | ||
1214 | rtnl_lock(); | |
1215 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); | |
1216 | rtnl_unlock(); | |
1217 | ||
1218 | out: | |
1219 | cfg80211_put_dev(drv); | |
1220 | dev_put(dev); | |
1221 | return err; | |
1222 | } | |
1223 | ||
2ec600d6 LCC |
1224 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1225 | int flags, struct net_device *dev, | |
1226 | u8 *dst, u8 *next_hop, | |
1227 | struct mpath_info *pinfo) | |
1228 | { | |
1229 | void *hdr; | |
1230 | struct nlattr *pinfoattr; | |
1231 | ||
1232 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1233 | if (!hdr) | |
1234 | return -1; | |
1235 | ||
1236 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1237 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1238 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1239 | ||
1240 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1241 | if (!pinfoattr) | |
1242 | goto nla_put_failure; | |
1243 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1244 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1245 | pinfo->frame_qlen); | |
1246 | if (pinfo->filled & MPATH_INFO_DSN) | |
1247 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1248 | pinfo->dsn); | |
1249 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1250 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1251 | pinfo->metric); | |
1252 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1253 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1254 | pinfo->exptime); | |
1255 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1256 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1257 | pinfo->flags); | |
1258 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1259 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1260 | pinfo->discovery_timeout); | |
1261 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1262 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1263 | pinfo->discovery_retries); | |
1264 | ||
1265 | nla_nest_end(msg, pinfoattr); | |
1266 | ||
1267 | return genlmsg_end(msg, hdr); | |
1268 | ||
1269 | nla_put_failure: | |
1270 | return genlmsg_cancel(msg, hdr); | |
1271 | } | |
1272 | ||
1273 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
1274 | struct netlink_callback *cb) | |
1275 | { | |
1276 | int wp_idx = 0; | |
1277 | int if_idx = 0; | |
1278 | int sta_idx = cb->args[2]; | |
1279 | int wp_start = cb->args[0]; | |
1280 | int if_start = cb->args[1]; | |
1281 | struct mpath_info pinfo; | |
1282 | struct cfg80211_registered_device *dev; | |
1283 | struct wireless_dev *wdev; | |
1284 | u8 dst[ETH_ALEN]; | |
1285 | u8 next_hop[ETH_ALEN]; | |
1286 | int err; | |
1287 | int exit = 0; | |
1288 | ||
1289 | /* TODO: filter by device */ | |
1290 | mutex_lock(&cfg80211_drv_mutex); | |
1291 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
1292 | if (exit) | |
1293 | break; | |
1294 | if (++wp_idx < wp_start) | |
1295 | continue; | |
1296 | if_idx = 0; | |
1297 | ||
1298 | mutex_lock(&dev->devlist_mtx); | |
1299 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
1300 | if (exit) | |
1301 | break; | |
1302 | if (++if_idx < if_start) | |
1303 | continue; | |
1304 | if (!dev->ops->dump_mpath) | |
1305 | continue; | |
1306 | ||
1307 | for (;; ++sta_idx) { | |
1308 | rtnl_lock(); | |
1309 | err = dev->ops->dump_mpath(&dev->wiphy, | |
1310 | wdev->netdev, sta_idx, dst, | |
1311 | next_hop, &pinfo); | |
1312 | rtnl_unlock(); | |
1313 | if (err) { | |
1314 | sta_idx = 0; | |
1315 | break; | |
1316 | } | |
1317 | if (nl80211_send_mpath(skb, | |
1318 | NETLINK_CB(cb->skb).pid, | |
1319 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1320 | wdev->netdev, dst, next_hop, | |
1321 | &pinfo) < 0) { | |
1322 | exit = 1; | |
1323 | break; | |
1324 | } | |
1325 | } | |
1326 | } | |
1327 | mutex_unlock(&dev->devlist_mtx); | |
1328 | } | |
1329 | mutex_unlock(&cfg80211_drv_mutex); | |
1330 | ||
1331 | cb->args[0] = wp_idx; | |
1332 | cb->args[1] = if_idx; | |
1333 | cb->args[2] = sta_idx; | |
1334 | ||
1335 | return skb->len; | |
1336 | } | |
1337 | ||
1338 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1339 | { | |
1340 | struct cfg80211_registered_device *drv; | |
1341 | int err; | |
1342 | struct net_device *dev; | |
1343 | struct mpath_info pinfo; | |
1344 | struct sk_buff *msg; | |
1345 | u8 *dst = NULL; | |
1346 | u8 next_hop[ETH_ALEN]; | |
1347 | ||
1348 | memset(&pinfo, 0, sizeof(pinfo)); | |
1349 | ||
1350 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1351 | return -EINVAL; | |
1352 | ||
1353 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1354 | ||
1355 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1356 | if (err) | |
1357 | return err; | |
1358 | ||
1359 | if (!drv->ops->get_mpath) { | |
1360 | err = -EOPNOTSUPP; | |
1361 | goto out; | |
1362 | } | |
1363 | ||
1364 | rtnl_lock(); | |
1365 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); | |
1366 | rtnl_unlock(); | |
1367 | ||
1368 | if (err) | |
1369 | goto out; | |
1370 | ||
1371 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1372 | if (!msg) | |
1373 | goto out; | |
1374 | ||
1375 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1376 | dev, dst, next_hop, &pinfo) < 0) | |
1377 | goto out_free; | |
1378 | ||
1379 | err = genlmsg_unicast(msg, info->snd_pid); | |
1380 | goto out; | |
1381 | ||
1382 | out_free: | |
1383 | nlmsg_free(msg); | |
1384 | ||
1385 | out: | |
1386 | cfg80211_put_dev(drv); | |
1387 | dev_put(dev); | |
1388 | return err; | |
1389 | } | |
1390 | ||
1391 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1392 | { | |
1393 | struct cfg80211_registered_device *drv; | |
1394 | int err; | |
1395 | struct net_device *dev; | |
1396 | u8 *dst = NULL; | |
1397 | u8 *next_hop = NULL; | |
1398 | ||
1399 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1400 | return -EINVAL; | |
1401 | ||
1402 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1403 | return -EINVAL; | |
1404 | ||
1405 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1406 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1407 | ||
1408 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1409 | if (err) | |
1410 | return err; | |
1411 | ||
1412 | if (!drv->ops->change_mpath) { | |
1413 | err = -EOPNOTSUPP; | |
1414 | goto out; | |
1415 | } | |
1416 | ||
1417 | rtnl_lock(); | |
1418 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); | |
1419 | rtnl_unlock(); | |
1420 | ||
1421 | out: | |
1422 | cfg80211_put_dev(drv); | |
1423 | dev_put(dev); | |
1424 | return err; | |
1425 | } | |
1426 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1427 | { | |
1428 | struct cfg80211_registered_device *drv; | |
1429 | int err; | |
1430 | struct net_device *dev; | |
1431 | u8 *dst = NULL; | |
1432 | u8 *next_hop = NULL; | |
1433 | ||
1434 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1435 | return -EINVAL; | |
1436 | ||
1437 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1438 | return -EINVAL; | |
1439 | ||
1440 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1441 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1442 | ||
1443 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1444 | if (err) | |
1445 | return err; | |
1446 | ||
1447 | if (!drv->ops->add_mpath) { | |
1448 | err = -EOPNOTSUPP; | |
1449 | goto out; | |
1450 | } | |
1451 | ||
1452 | rtnl_lock(); | |
1453 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); | |
1454 | rtnl_unlock(); | |
1455 | ||
1456 | out: | |
1457 | cfg80211_put_dev(drv); | |
1458 | dev_put(dev); | |
1459 | return err; | |
1460 | } | |
1461 | ||
1462 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1463 | { | |
1464 | struct cfg80211_registered_device *drv; | |
1465 | int err; | |
1466 | struct net_device *dev; | |
1467 | u8 *dst = NULL; | |
1468 | ||
1469 | if (info->attrs[NL80211_ATTR_MAC]) | |
1470 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1471 | ||
1472 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1473 | if (err) | |
1474 | return err; | |
1475 | ||
1476 | if (!drv->ops->del_mpath) { | |
1477 | err = -EOPNOTSUPP; | |
1478 | goto out; | |
1479 | } | |
1480 | ||
1481 | rtnl_lock(); | |
1482 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); | |
1483 | rtnl_unlock(); | |
1484 | ||
1485 | out: | |
1486 | cfg80211_put_dev(drv); | |
1487 | dev_put(dev); | |
1488 | return err; | |
1489 | } | |
1490 | ||
55682965 JB |
1491 | static struct genl_ops nl80211_ops[] = { |
1492 | { | |
1493 | .cmd = NL80211_CMD_GET_WIPHY, | |
1494 | .doit = nl80211_get_wiphy, | |
1495 | .dumpit = nl80211_dump_wiphy, | |
1496 | .policy = nl80211_policy, | |
1497 | /* can be retrieved by unprivileged users */ | |
1498 | }, | |
1499 | { | |
1500 | .cmd = NL80211_CMD_SET_WIPHY, | |
1501 | .doit = nl80211_set_wiphy, | |
1502 | .policy = nl80211_policy, | |
1503 | .flags = GENL_ADMIN_PERM, | |
1504 | }, | |
1505 | { | |
1506 | .cmd = NL80211_CMD_GET_INTERFACE, | |
1507 | .doit = nl80211_get_interface, | |
1508 | .dumpit = nl80211_dump_interface, | |
1509 | .policy = nl80211_policy, | |
1510 | /* can be retrieved by unprivileged users */ | |
1511 | }, | |
1512 | { | |
1513 | .cmd = NL80211_CMD_SET_INTERFACE, | |
1514 | .doit = nl80211_set_interface, | |
1515 | .policy = nl80211_policy, | |
1516 | .flags = GENL_ADMIN_PERM, | |
1517 | }, | |
1518 | { | |
1519 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
1520 | .doit = nl80211_new_interface, | |
1521 | .policy = nl80211_policy, | |
1522 | .flags = GENL_ADMIN_PERM, | |
1523 | }, | |
1524 | { | |
1525 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
1526 | .doit = nl80211_del_interface, | |
1527 | .policy = nl80211_policy, | |
41ade00f JB |
1528 | .flags = GENL_ADMIN_PERM, |
1529 | }, | |
1530 | { | |
1531 | .cmd = NL80211_CMD_GET_KEY, | |
1532 | .doit = nl80211_get_key, | |
1533 | .policy = nl80211_policy, | |
1534 | .flags = GENL_ADMIN_PERM, | |
1535 | }, | |
1536 | { | |
1537 | .cmd = NL80211_CMD_SET_KEY, | |
1538 | .doit = nl80211_set_key, | |
1539 | .policy = nl80211_policy, | |
1540 | .flags = GENL_ADMIN_PERM, | |
1541 | }, | |
1542 | { | |
1543 | .cmd = NL80211_CMD_NEW_KEY, | |
1544 | .doit = nl80211_new_key, | |
1545 | .policy = nl80211_policy, | |
1546 | .flags = GENL_ADMIN_PERM, | |
1547 | }, | |
1548 | { | |
1549 | .cmd = NL80211_CMD_DEL_KEY, | |
1550 | .doit = nl80211_del_key, | |
1551 | .policy = nl80211_policy, | |
55682965 JB |
1552 | .flags = GENL_ADMIN_PERM, |
1553 | }, | |
ed1b6cc7 JB |
1554 | { |
1555 | .cmd = NL80211_CMD_SET_BEACON, | |
1556 | .policy = nl80211_policy, | |
1557 | .flags = GENL_ADMIN_PERM, | |
1558 | .doit = nl80211_addset_beacon, | |
1559 | }, | |
1560 | { | |
1561 | .cmd = NL80211_CMD_NEW_BEACON, | |
1562 | .policy = nl80211_policy, | |
1563 | .flags = GENL_ADMIN_PERM, | |
1564 | .doit = nl80211_addset_beacon, | |
1565 | }, | |
1566 | { | |
1567 | .cmd = NL80211_CMD_DEL_BEACON, | |
1568 | .policy = nl80211_policy, | |
1569 | .flags = GENL_ADMIN_PERM, | |
1570 | .doit = nl80211_del_beacon, | |
1571 | }, | |
5727ef1b JB |
1572 | { |
1573 | .cmd = NL80211_CMD_GET_STATION, | |
1574 | .doit = nl80211_get_station, | |
2ec600d6 | 1575 | .dumpit = nl80211_dump_station, |
5727ef1b JB |
1576 | .policy = nl80211_policy, |
1577 | .flags = GENL_ADMIN_PERM, | |
1578 | }, | |
1579 | { | |
1580 | .cmd = NL80211_CMD_SET_STATION, | |
1581 | .doit = nl80211_set_station, | |
1582 | .policy = nl80211_policy, | |
1583 | .flags = GENL_ADMIN_PERM, | |
1584 | }, | |
1585 | { | |
1586 | .cmd = NL80211_CMD_NEW_STATION, | |
1587 | .doit = nl80211_new_station, | |
1588 | .policy = nl80211_policy, | |
1589 | .flags = GENL_ADMIN_PERM, | |
1590 | }, | |
1591 | { | |
1592 | .cmd = NL80211_CMD_DEL_STATION, | |
1593 | .doit = nl80211_del_station, | |
1594 | .policy = nl80211_policy, | |
2ec600d6 LCC |
1595 | .flags = GENL_ADMIN_PERM, |
1596 | }, | |
1597 | { | |
1598 | .cmd = NL80211_CMD_GET_MPATH, | |
1599 | .doit = nl80211_get_mpath, | |
1600 | .dumpit = nl80211_dump_mpath, | |
1601 | .policy = nl80211_policy, | |
1602 | .flags = GENL_ADMIN_PERM, | |
1603 | }, | |
1604 | { | |
1605 | .cmd = NL80211_CMD_SET_MPATH, | |
1606 | .doit = nl80211_set_mpath, | |
1607 | .policy = nl80211_policy, | |
1608 | .flags = GENL_ADMIN_PERM, | |
1609 | }, | |
1610 | { | |
1611 | .cmd = NL80211_CMD_NEW_MPATH, | |
1612 | .doit = nl80211_new_mpath, | |
1613 | .policy = nl80211_policy, | |
1614 | .flags = GENL_ADMIN_PERM, | |
1615 | }, | |
1616 | { | |
1617 | .cmd = NL80211_CMD_DEL_MPATH, | |
1618 | .doit = nl80211_del_mpath, | |
1619 | .policy = nl80211_policy, | |
5727ef1b JB |
1620 | .flags = GENL_ADMIN_PERM, |
1621 | }, | |
55682965 JB |
1622 | }; |
1623 | ||
1624 | /* multicast groups */ | |
1625 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
1626 | .name = "config", | |
1627 | }; | |
1628 | ||
1629 | /* notification functions */ | |
1630 | ||
1631 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
1632 | { | |
1633 | struct sk_buff *msg; | |
1634 | ||
1635 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1636 | if (!msg) | |
1637 | return; | |
1638 | ||
1639 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
1640 | nlmsg_free(msg); | |
1641 | return; | |
1642 | } | |
1643 | ||
1644 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
1645 | } | |
1646 | ||
1647 | /* initialisation/exit functions */ | |
1648 | ||
1649 | int nl80211_init(void) | |
1650 | { | |
1651 | int err, i; | |
1652 | ||
1653 | err = genl_register_family(&nl80211_fam); | |
1654 | if (err) | |
1655 | return err; | |
1656 | ||
1657 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
1658 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
1659 | if (err) | |
1660 | goto err_out; | |
1661 | } | |
1662 | ||
1663 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
1664 | if (err) | |
1665 | goto err_out; | |
1666 | ||
1667 | return 0; | |
1668 | err_out: | |
1669 | genl_unregister_family(&nl80211_fam); | |
1670 | return err; | |
1671 | } | |
1672 | ||
1673 | void nl80211_exit(void) | |
1674 | { | |
1675 | genl_unregister_family(&nl80211_fam); | |
1676 | } |