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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: | |
bc3ed28c TG |
190 | genlmsg_cancel(msg, hdr); |
191 | return -EMSGSIZE; | |
55682965 JB |
192 | } |
193 | ||
194 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
195 | { | |
196 | int idx = 0; | |
197 | int start = cb->args[0]; | |
198 | struct cfg80211_registered_device *dev; | |
199 | ||
200 | mutex_lock(&cfg80211_drv_mutex); | |
201 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
202 | if (++idx < start) | |
203 | continue; | |
204 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
205 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
206 | dev) < 0) | |
207 | break; | |
208 | } | |
209 | mutex_unlock(&cfg80211_drv_mutex); | |
210 | ||
211 | cb->args[0] = idx; | |
212 | ||
213 | return skb->len; | |
214 | } | |
215 | ||
216 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
217 | { | |
218 | struct sk_buff *msg; | |
219 | struct cfg80211_registered_device *dev; | |
220 | ||
221 | dev = cfg80211_get_dev_from_info(info); | |
222 | if (IS_ERR(dev)) | |
223 | return PTR_ERR(dev); | |
224 | ||
225 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
226 | if (!msg) | |
227 | goto out_err; | |
228 | ||
229 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
230 | goto out_free; | |
231 | ||
232 | cfg80211_put_dev(dev); | |
233 | ||
234 | return genlmsg_unicast(msg, info->snd_pid); | |
235 | ||
236 | out_free: | |
237 | nlmsg_free(msg); | |
238 | out_err: | |
239 | cfg80211_put_dev(dev); | |
240 | return -ENOBUFS; | |
241 | } | |
242 | ||
243 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
244 | { | |
245 | struct cfg80211_registered_device *rdev; | |
246 | int result; | |
247 | ||
248 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
249 | return -EINVAL; | |
250 | ||
251 | rdev = cfg80211_get_dev_from_info(info); | |
252 | if (IS_ERR(rdev)) | |
253 | return PTR_ERR(rdev); | |
254 | ||
255 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
256 | ||
257 | cfg80211_put_dev(rdev); | |
258 | return result; | |
259 | } | |
260 | ||
261 | ||
262 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
263 | struct net_device *dev) | |
264 | { | |
265 | void *hdr; | |
266 | ||
267 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
268 | if (!hdr) | |
269 | return -1; | |
270 | ||
271 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
272 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
273 | /* TODO: interface type */ | |
274 | return genlmsg_end(msg, hdr); | |
275 | ||
276 | nla_put_failure: | |
bc3ed28c TG |
277 | genlmsg_cancel(msg, hdr); |
278 | return -EMSGSIZE; | |
55682965 JB |
279 | } |
280 | ||
281 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
282 | { | |
283 | int wp_idx = 0; | |
284 | int if_idx = 0; | |
285 | int wp_start = cb->args[0]; | |
286 | int if_start = cb->args[1]; | |
287 | struct cfg80211_registered_device *dev; | |
288 | struct wireless_dev *wdev; | |
289 | ||
290 | mutex_lock(&cfg80211_drv_mutex); | |
291 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
292 | if (++wp_idx < wp_start) | |
293 | continue; | |
294 | if_idx = 0; | |
295 | ||
296 | mutex_lock(&dev->devlist_mtx); | |
297 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
298 | if (++if_idx < if_start) | |
299 | continue; | |
300 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, | |
301 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
302 | wdev->netdev) < 0) | |
303 | break; | |
304 | } | |
305 | mutex_unlock(&dev->devlist_mtx); | |
306 | } | |
307 | mutex_unlock(&cfg80211_drv_mutex); | |
308 | ||
309 | cb->args[0] = wp_idx; | |
310 | cb->args[1] = if_idx; | |
311 | ||
312 | return skb->len; | |
313 | } | |
314 | ||
315 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
316 | { | |
317 | struct sk_buff *msg; | |
318 | struct cfg80211_registered_device *dev; | |
319 | struct net_device *netdev; | |
320 | int err; | |
321 | ||
322 | err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); | |
323 | if (err) | |
324 | return err; | |
325 | ||
326 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
327 | if (!msg) | |
328 | goto out_err; | |
329 | ||
330 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
331 | goto out_free; | |
332 | ||
333 | dev_put(netdev); | |
334 | cfg80211_put_dev(dev); | |
335 | ||
336 | return genlmsg_unicast(msg, info->snd_pid); | |
337 | ||
338 | out_free: | |
339 | nlmsg_free(msg); | |
340 | out_err: | |
341 | dev_put(netdev); | |
342 | cfg80211_put_dev(dev); | |
343 | return -ENOBUFS; | |
344 | } | |
345 | ||
66f7ac50 MW |
346 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
347 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
348 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
349 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
350 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
351 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
352 | }; | |
353 | ||
354 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
355 | { | |
356 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
357 | int flag; | |
358 | ||
359 | *mntrflags = 0; | |
360 | ||
361 | if (!nla) | |
362 | return -EINVAL; | |
363 | ||
364 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
365 | nla, mntr_flags_policy)) | |
366 | return -EINVAL; | |
367 | ||
368 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
369 | if (flags[flag]) | |
370 | *mntrflags |= (1<<flag); | |
371 | ||
372 | return 0; | |
373 | } | |
374 | ||
55682965 JB |
375 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
376 | { | |
377 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 378 | struct vif_params params; |
55682965 JB |
379 | int err, ifindex; |
380 | enum nl80211_iftype type; | |
381 | struct net_device *dev; | |
66f7ac50 | 382 | u32 flags; |
55682965 | 383 | |
2ec600d6 LCC |
384 | memset(¶ms, 0, sizeof(params)); |
385 | ||
55682965 JB |
386 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
387 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
388 | if (type > NL80211_IFTYPE_MAX) | |
389 | return -EINVAL; | |
390 | } else | |
391 | return -EINVAL; | |
392 | ||
393 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
394 | if (err) | |
395 | return err; | |
396 | ifindex = dev->ifindex; | |
397 | dev_put(dev); | |
398 | ||
399 | if (!drv->ops->change_virtual_intf) { | |
400 | err = -EOPNOTSUPP; | |
401 | goto unlock; | |
402 | } | |
403 | ||
2ec600d6 LCC |
404 | if (type == NL80211_IFTYPE_MESH_POINT && |
405 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
406 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
407 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
408 | } | |
409 | ||
55682965 | 410 | rtnl_lock(); |
66f7ac50 MW |
411 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
412 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
413 | &flags); | |
414 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
2ec600d6 | 415 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
416 | rtnl_unlock(); |
417 | ||
418 | unlock: | |
419 | cfg80211_put_dev(drv); | |
420 | return err; | |
421 | } | |
422 | ||
423 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
424 | { | |
425 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 426 | struct vif_params params; |
55682965 JB |
427 | int err; |
428 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 429 | u32 flags; |
55682965 | 430 | |
2ec600d6 LCC |
431 | memset(¶ms, 0, sizeof(params)); |
432 | ||
55682965 JB |
433 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
434 | return -EINVAL; | |
435 | ||
436 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
437 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
438 | if (type > NL80211_IFTYPE_MAX) | |
439 | return -EINVAL; | |
440 | } | |
441 | ||
442 | drv = cfg80211_get_dev_from_info(info); | |
443 | if (IS_ERR(drv)) | |
444 | return PTR_ERR(drv); | |
445 | ||
446 | if (!drv->ops->add_virtual_intf) { | |
447 | err = -EOPNOTSUPP; | |
448 | goto unlock; | |
449 | } | |
450 | ||
2ec600d6 LCC |
451 | if (type == NL80211_IFTYPE_MESH_POINT && |
452 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
453 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
454 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
455 | } | |
456 | ||
55682965 | 457 | rtnl_lock(); |
66f7ac50 MW |
458 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
459 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
460 | &flags); | |
55682965 | 461 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 462 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 463 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
464 | rtnl_unlock(); |
465 | ||
2ec600d6 | 466 | |
55682965 JB |
467 | unlock: |
468 | cfg80211_put_dev(drv); | |
469 | return err; | |
470 | } | |
471 | ||
472 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
473 | { | |
474 | struct cfg80211_registered_device *drv; | |
475 | int ifindex, err; | |
476 | struct net_device *dev; | |
477 | ||
478 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
479 | if (err) | |
480 | return err; | |
481 | ifindex = dev->ifindex; | |
482 | dev_put(dev); | |
483 | ||
484 | if (!drv->ops->del_virtual_intf) { | |
485 | err = -EOPNOTSUPP; | |
486 | goto out; | |
487 | } | |
488 | ||
489 | rtnl_lock(); | |
490 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
491 | rtnl_unlock(); | |
492 | ||
493 | out: | |
494 | cfg80211_put_dev(drv); | |
495 | return err; | |
496 | } | |
497 | ||
41ade00f JB |
498 | struct get_key_cookie { |
499 | struct sk_buff *msg; | |
500 | int error; | |
501 | }; | |
502 | ||
503 | static void get_key_callback(void *c, struct key_params *params) | |
504 | { | |
505 | struct get_key_cookie *cookie = c; | |
506 | ||
507 | if (params->key) | |
508 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
509 | params->key_len, params->key); | |
510 | ||
511 | if (params->seq) | |
512 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
513 | params->seq_len, params->seq); | |
514 | ||
515 | if (params->cipher) | |
516 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
517 | params->cipher); | |
518 | ||
519 | return; | |
520 | nla_put_failure: | |
521 | cookie->error = 1; | |
522 | } | |
523 | ||
524 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
525 | { | |
526 | struct cfg80211_registered_device *drv; | |
527 | int err; | |
528 | struct net_device *dev; | |
529 | u8 key_idx = 0; | |
530 | u8 *mac_addr = NULL; | |
531 | struct get_key_cookie cookie = { | |
532 | .error = 0, | |
533 | }; | |
534 | void *hdr; | |
535 | struct sk_buff *msg; | |
536 | ||
537 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
538 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
539 | ||
540 | if (key_idx > 3) | |
541 | return -EINVAL; | |
542 | ||
543 | if (info->attrs[NL80211_ATTR_MAC]) | |
544 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
545 | ||
546 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
547 | if (err) | |
548 | return err; | |
549 | ||
550 | if (!drv->ops->get_key) { | |
551 | err = -EOPNOTSUPP; | |
552 | goto out; | |
553 | } | |
554 | ||
555 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
556 | if (!msg) { | |
557 | err = -ENOMEM; | |
558 | goto out; | |
559 | } | |
560 | ||
561 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
562 | NL80211_CMD_NEW_KEY); | |
563 | ||
564 | if (IS_ERR(hdr)) { | |
565 | err = PTR_ERR(hdr); | |
566 | goto out; | |
567 | } | |
568 | ||
569 | cookie.msg = msg; | |
570 | ||
571 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
572 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
573 | if (mac_addr) | |
574 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
575 | ||
576 | rtnl_lock(); | |
577 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
578 | &cookie, get_key_callback); | |
579 | rtnl_unlock(); | |
580 | ||
581 | if (err) | |
582 | goto out; | |
583 | ||
584 | if (cookie.error) | |
585 | goto nla_put_failure; | |
586 | ||
587 | genlmsg_end(msg, hdr); | |
588 | err = genlmsg_unicast(msg, info->snd_pid); | |
589 | goto out; | |
590 | ||
591 | nla_put_failure: | |
592 | err = -ENOBUFS; | |
593 | nlmsg_free(msg); | |
594 | out: | |
595 | cfg80211_put_dev(drv); | |
596 | dev_put(dev); | |
597 | return err; | |
598 | } | |
599 | ||
600 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
601 | { | |
602 | struct cfg80211_registered_device *drv; | |
603 | int err; | |
604 | struct net_device *dev; | |
605 | u8 key_idx; | |
606 | ||
607 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
608 | return -EINVAL; | |
609 | ||
610 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
611 | ||
612 | if (key_idx > 3) | |
613 | return -EINVAL; | |
614 | ||
615 | /* currently only support setting default key */ | |
616 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) | |
617 | return -EINVAL; | |
618 | ||
619 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
620 | if (err) | |
621 | return err; | |
622 | ||
623 | if (!drv->ops->set_default_key) { | |
624 | err = -EOPNOTSUPP; | |
625 | goto out; | |
626 | } | |
627 | ||
628 | rtnl_lock(); | |
629 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); | |
630 | rtnl_unlock(); | |
631 | ||
632 | out: | |
633 | cfg80211_put_dev(drv); | |
634 | dev_put(dev); | |
635 | return err; | |
636 | } | |
637 | ||
638 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
639 | { | |
640 | struct cfg80211_registered_device *drv; | |
641 | int err; | |
642 | struct net_device *dev; | |
643 | struct key_params params; | |
644 | u8 key_idx = 0; | |
645 | u8 *mac_addr = NULL; | |
646 | ||
647 | memset(¶ms, 0, sizeof(params)); | |
648 | ||
649 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
650 | return -EINVAL; | |
651 | ||
652 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
653 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
654 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
655 | } | |
656 | ||
657 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
658 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
659 | ||
660 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
661 | ||
662 | if (info->attrs[NL80211_ATTR_MAC]) | |
663 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
664 | ||
665 | if (key_idx > 3) | |
666 | return -EINVAL; | |
667 | ||
668 | /* | |
669 | * Disallow pairwise keys with non-zero index unless it's WEP | |
670 | * (because current deployments use pairwise WEP keys with | |
671 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
672 | */ | |
673 | if (mac_addr && key_idx && | |
674 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
675 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
676 | return -EINVAL; | |
677 | ||
678 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
679 | switch (params.cipher) { | |
680 | case WLAN_CIPHER_SUITE_WEP40: | |
681 | if (params.key_len != 5) | |
682 | return -EINVAL; | |
683 | break; | |
684 | case WLAN_CIPHER_SUITE_TKIP: | |
685 | if (params.key_len != 32) | |
686 | return -EINVAL; | |
687 | break; | |
688 | case WLAN_CIPHER_SUITE_CCMP: | |
689 | if (params.key_len != 16) | |
690 | return -EINVAL; | |
691 | break; | |
692 | case WLAN_CIPHER_SUITE_WEP104: | |
693 | if (params.key_len != 13) | |
694 | return -EINVAL; | |
695 | break; | |
696 | default: | |
697 | return -EINVAL; | |
698 | } | |
699 | ||
700 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
701 | if (err) | |
702 | return err; | |
703 | ||
704 | if (!drv->ops->add_key) { | |
705 | err = -EOPNOTSUPP; | |
706 | goto out; | |
707 | } | |
708 | ||
709 | rtnl_lock(); | |
710 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
711 | rtnl_unlock(); | |
712 | ||
713 | out: | |
714 | cfg80211_put_dev(drv); | |
715 | dev_put(dev); | |
716 | return err; | |
717 | } | |
718 | ||
719 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
720 | { | |
721 | struct cfg80211_registered_device *drv; | |
722 | int err; | |
723 | struct net_device *dev; | |
724 | u8 key_idx = 0; | |
725 | u8 *mac_addr = NULL; | |
726 | ||
727 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
728 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
729 | ||
730 | if (key_idx > 3) | |
731 | return -EINVAL; | |
732 | ||
733 | if (info->attrs[NL80211_ATTR_MAC]) | |
734 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
735 | ||
736 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
737 | if (err) | |
738 | return err; | |
739 | ||
740 | if (!drv->ops->del_key) { | |
741 | err = -EOPNOTSUPP; | |
742 | goto out; | |
743 | } | |
744 | ||
745 | rtnl_lock(); | |
746 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
747 | rtnl_unlock(); | |
748 | ||
749 | out: | |
750 | cfg80211_put_dev(drv); | |
751 | dev_put(dev); | |
752 | return err; | |
753 | } | |
754 | ||
ed1b6cc7 JB |
755 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
756 | { | |
757 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
758 | struct beacon_parameters *info); | |
759 | struct cfg80211_registered_device *drv; | |
760 | int err; | |
761 | struct net_device *dev; | |
762 | struct beacon_parameters params; | |
763 | int haveinfo = 0; | |
764 | ||
765 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
766 | if (err) | |
767 | return err; | |
768 | ||
769 | switch (info->genlhdr->cmd) { | |
770 | case NL80211_CMD_NEW_BEACON: | |
771 | /* these are required for NEW_BEACON */ | |
772 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
773 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
774 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
775 | err = -EINVAL; | |
776 | goto out; | |
777 | } | |
778 | ||
779 | call = drv->ops->add_beacon; | |
780 | break; | |
781 | case NL80211_CMD_SET_BEACON: | |
782 | call = drv->ops->set_beacon; | |
783 | break; | |
784 | default: | |
785 | WARN_ON(1); | |
786 | err = -EOPNOTSUPP; | |
787 | goto out; | |
788 | } | |
789 | ||
790 | if (!call) { | |
791 | err = -EOPNOTSUPP; | |
792 | goto out; | |
793 | } | |
794 | ||
795 | memset(¶ms, 0, sizeof(params)); | |
796 | ||
797 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
798 | params.interval = | |
799 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
800 | haveinfo = 1; | |
801 | } | |
802 | ||
803 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
804 | params.dtim_period = | |
805 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
806 | haveinfo = 1; | |
807 | } | |
808 | ||
809 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
810 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
811 | params.head_len = | |
812 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
813 | haveinfo = 1; | |
814 | } | |
815 | ||
816 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
817 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
818 | params.tail_len = | |
819 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
820 | haveinfo = 1; | |
821 | } | |
822 | ||
823 | if (!haveinfo) { | |
824 | err = -EINVAL; | |
825 | goto out; | |
826 | } | |
827 | ||
828 | rtnl_lock(); | |
829 | err = call(&drv->wiphy, dev, ¶ms); | |
830 | rtnl_unlock(); | |
831 | ||
832 | out: | |
833 | cfg80211_put_dev(drv); | |
834 | dev_put(dev); | |
835 | return err; | |
836 | } | |
837 | ||
838 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
839 | { | |
840 | struct cfg80211_registered_device *drv; | |
841 | int err; | |
842 | struct net_device *dev; | |
843 | ||
844 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
845 | if (err) | |
846 | return err; | |
847 | ||
848 | if (!drv->ops->del_beacon) { | |
849 | err = -EOPNOTSUPP; | |
850 | goto out; | |
851 | } | |
852 | ||
853 | rtnl_lock(); | |
854 | err = drv->ops->del_beacon(&drv->wiphy, dev); | |
855 | rtnl_unlock(); | |
856 | ||
857 | out: | |
858 | cfg80211_put_dev(drv); | |
859 | dev_put(dev); | |
860 | return err; | |
861 | } | |
862 | ||
5727ef1b JB |
863 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
864 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
865 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
866 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
867 | }; | |
868 | ||
869 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
870 | { | |
871 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
872 | int flag; | |
873 | ||
874 | *staflags = 0; | |
875 | ||
876 | if (!nla) | |
877 | return 0; | |
878 | ||
879 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
880 | nla, sta_flags_policy)) | |
881 | return -EINVAL; | |
882 | ||
883 | *staflags = STATION_FLAG_CHANGED; | |
884 | ||
885 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
886 | if (flags[flag]) | |
887 | *staflags |= (1<<flag); | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
fd5b74dc JB |
892 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
893 | int flags, struct net_device *dev, | |
2ec600d6 | 894 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
895 | { |
896 | void *hdr; | |
2ec600d6 | 897 | struct nlattr *sinfoattr; |
fd5b74dc JB |
898 | |
899 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
900 | if (!hdr) | |
901 | return -1; | |
902 | ||
903 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
904 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
905 | ||
2ec600d6 LCC |
906 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
907 | if (!sinfoattr) | |
fd5b74dc | 908 | goto nla_put_failure; |
2ec600d6 LCC |
909 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
910 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
911 | sinfo->inactive_time); | |
912 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
913 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
914 | sinfo->rx_bytes); | |
915 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
916 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
917 | sinfo->tx_bytes); | |
918 | if (sinfo->filled & STATION_INFO_LLID) | |
919 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
920 | sinfo->llid); | |
921 | if (sinfo->filled & STATION_INFO_PLID) | |
922 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
923 | sinfo->plid); | |
924 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
925 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
926 | sinfo->plink_state); | |
927 | ||
928 | nla_nest_end(msg, sinfoattr); | |
fd5b74dc JB |
929 | |
930 | return genlmsg_end(msg, hdr); | |
931 | ||
932 | nla_put_failure: | |
bc3ed28c TG |
933 | genlmsg_cancel(msg, hdr); |
934 | return -EMSGSIZE; | |
fd5b74dc JB |
935 | } |
936 | ||
2ec600d6 LCC |
937 | static int nl80211_dump_station(struct sk_buff *skb, |
938 | struct netlink_callback *cb) | |
939 | { | |
940 | int wp_idx = 0; | |
941 | int if_idx = 0; | |
942 | int sta_idx = cb->args[2]; | |
943 | int wp_start = cb->args[0]; | |
944 | int if_start = cb->args[1]; | |
945 | struct station_info sinfo; | |
946 | struct cfg80211_registered_device *dev; | |
947 | struct wireless_dev *wdev; | |
948 | u8 mac_addr[ETH_ALEN]; | |
949 | int err; | |
950 | int exit = 0; | |
951 | ||
952 | /* TODO: filter by device */ | |
953 | mutex_lock(&cfg80211_drv_mutex); | |
954 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
955 | if (exit) | |
956 | break; | |
957 | if (++wp_idx < wp_start) | |
958 | continue; | |
959 | if_idx = 0; | |
960 | ||
961 | mutex_lock(&dev->devlist_mtx); | |
962 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
963 | if (exit) | |
964 | break; | |
965 | if (++if_idx < if_start) | |
966 | continue; | |
967 | if (!dev->ops->dump_station) | |
968 | continue; | |
969 | ||
970 | for (;; ++sta_idx) { | |
971 | rtnl_lock(); | |
972 | err = dev->ops->dump_station(&dev->wiphy, | |
973 | wdev->netdev, sta_idx, mac_addr, | |
974 | &sinfo); | |
975 | rtnl_unlock(); | |
976 | if (err) { | |
977 | sta_idx = 0; | |
978 | break; | |
979 | } | |
980 | if (nl80211_send_station(skb, | |
981 | NETLINK_CB(cb->skb).pid, | |
982 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
983 | wdev->netdev, mac_addr, | |
984 | &sinfo) < 0) { | |
985 | exit = 1; | |
986 | break; | |
987 | } | |
988 | } | |
989 | } | |
990 | mutex_unlock(&dev->devlist_mtx); | |
991 | } | |
992 | mutex_unlock(&cfg80211_drv_mutex); | |
993 | ||
994 | cb->args[0] = wp_idx; | |
995 | cb->args[1] = if_idx; | |
996 | cb->args[2] = sta_idx; | |
997 | ||
998 | return skb->len; | |
999 | } | |
fd5b74dc | 1000 | |
5727ef1b JB |
1001 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1002 | { | |
fd5b74dc JB |
1003 | struct cfg80211_registered_device *drv; |
1004 | int err; | |
1005 | struct net_device *dev; | |
2ec600d6 | 1006 | struct station_info sinfo; |
fd5b74dc JB |
1007 | struct sk_buff *msg; |
1008 | u8 *mac_addr = NULL; | |
1009 | ||
2ec600d6 | 1010 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1011 | |
1012 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1013 | return -EINVAL; | |
1014 | ||
1015 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1016 | ||
1017 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1018 | if (err) | |
1019 | return err; | |
1020 | ||
1021 | if (!drv->ops->get_station) { | |
1022 | err = -EOPNOTSUPP; | |
1023 | goto out; | |
1024 | } | |
1025 | ||
1026 | rtnl_lock(); | |
2ec600d6 | 1027 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc JB |
1028 | rtnl_unlock(); |
1029 | ||
2ec600d6 LCC |
1030 | if (err) |
1031 | goto out; | |
1032 | ||
fd5b74dc JB |
1033 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1034 | if (!msg) | |
1035 | goto out; | |
1036 | ||
1037 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1038 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1039 | goto out_free; |
1040 | ||
1041 | err = genlmsg_unicast(msg, info->snd_pid); | |
1042 | goto out; | |
1043 | ||
1044 | out_free: | |
1045 | nlmsg_free(msg); | |
1046 | ||
1047 | out: | |
1048 | cfg80211_put_dev(drv); | |
1049 | dev_put(dev); | |
1050 | return err; | |
5727ef1b JB |
1051 | } |
1052 | ||
1053 | /* | |
1054 | * Get vlan interface making sure it is on the right wiphy. | |
1055 | */ | |
1056 | static int get_vlan(struct nlattr *vlanattr, | |
1057 | struct cfg80211_registered_device *rdev, | |
1058 | struct net_device **vlan) | |
1059 | { | |
1060 | *vlan = NULL; | |
1061 | ||
1062 | if (vlanattr) { | |
1063 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1064 | if (!*vlan) | |
1065 | return -ENODEV; | |
1066 | if (!(*vlan)->ieee80211_ptr) | |
1067 | return -EINVAL; | |
1068 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1069 | return -EINVAL; | |
1070 | } | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1075 | { | |
1076 | struct cfg80211_registered_device *drv; | |
1077 | int err; | |
1078 | struct net_device *dev; | |
1079 | struct station_parameters params; | |
1080 | u8 *mac_addr = NULL; | |
1081 | ||
1082 | memset(¶ms, 0, sizeof(params)); | |
1083 | ||
1084 | params.listen_interval = -1; | |
1085 | ||
1086 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1087 | return -EINVAL; | |
1088 | ||
1089 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1090 | return -EINVAL; | |
1091 | ||
1092 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1093 | ||
1094 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1095 | params.supported_rates = | |
1096 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1097 | params.supported_rates_len = | |
1098 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1099 | } | |
1100 | ||
1101 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1102 | params.listen_interval = | |
1103 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1104 | ||
1105 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1106 | ¶ms.station_flags)) | |
1107 | return -EINVAL; | |
1108 | ||
2ec600d6 LCC |
1109 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1110 | params.plink_action = | |
1111 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1112 | ||
5727ef1b JB |
1113 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); |
1114 | if (err) | |
1115 | return err; | |
1116 | ||
1117 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1118 | if (err) | |
1119 | goto out; | |
1120 | ||
1121 | if (!drv->ops->change_station) { | |
1122 | err = -EOPNOTSUPP; | |
1123 | goto out; | |
1124 | } | |
1125 | ||
1126 | rtnl_lock(); | |
1127 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1128 | rtnl_unlock(); | |
1129 | ||
1130 | out: | |
1131 | if (params.vlan) | |
1132 | dev_put(params.vlan); | |
1133 | cfg80211_put_dev(drv); | |
1134 | dev_put(dev); | |
1135 | return err; | |
1136 | } | |
1137 | ||
1138 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1139 | { | |
1140 | struct cfg80211_registered_device *drv; | |
1141 | int err; | |
1142 | struct net_device *dev; | |
1143 | struct station_parameters params; | |
1144 | u8 *mac_addr = NULL; | |
1145 | ||
1146 | memset(¶ms, 0, sizeof(params)); | |
1147 | ||
1148 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1149 | return -EINVAL; | |
1150 | ||
1151 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1152 | return -EINVAL; | |
1153 | ||
1154 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1155 | return -EINVAL; | |
1156 | ||
1157 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1158 | return -EINVAL; | |
1159 | ||
1160 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1161 | params.supported_rates = | |
1162 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1163 | params.supported_rates_len = | |
1164 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1165 | params.listen_interval = | |
1166 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1167 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
5727ef1b JB |
1168 | |
1169 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1170 | ¶ms.station_flags)) | |
1171 | return -EINVAL; | |
1172 | ||
1173 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1174 | if (err) | |
1175 | return err; | |
1176 | ||
1177 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1178 | if (err) | |
1179 | goto out; | |
1180 | ||
1181 | if (!drv->ops->add_station) { | |
1182 | err = -EOPNOTSUPP; | |
1183 | goto out; | |
1184 | } | |
1185 | ||
1186 | rtnl_lock(); | |
1187 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1188 | rtnl_unlock(); | |
1189 | ||
1190 | out: | |
1191 | if (params.vlan) | |
1192 | dev_put(params.vlan); | |
1193 | cfg80211_put_dev(drv); | |
1194 | dev_put(dev); | |
1195 | return err; | |
1196 | } | |
1197 | ||
1198 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1199 | { | |
1200 | struct cfg80211_registered_device *drv; | |
1201 | int err; | |
1202 | struct net_device *dev; | |
1203 | u8 *mac_addr = NULL; | |
1204 | ||
1205 | if (info->attrs[NL80211_ATTR_MAC]) | |
1206 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1207 | ||
1208 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1209 | if (err) | |
1210 | return err; | |
1211 | ||
1212 | if (!drv->ops->del_station) { | |
1213 | err = -EOPNOTSUPP; | |
1214 | goto out; | |
1215 | } | |
1216 | ||
1217 | rtnl_lock(); | |
1218 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); | |
1219 | rtnl_unlock(); | |
1220 | ||
1221 | out: | |
1222 | cfg80211_put_dev(drv); | |
1223 | dev_put(dev); | |
1224 | return err; | |
1225 | } | |
1226 | ||
2ec600d6 LCC |
1227 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1228 | int flags, struct net_device *dev, | |
1229 | u8 *dst, u8 *next_hop, | |
1230 | struct mpath_info *pinfo) | |
1231 | { | |
1232 | void *hdr; | |
1233 | struct nlattr *pinfoattr; | |
1234 | ||
1235 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1236 | if (!hdr) | |
1237 | return -1; | |
1238 | ||
1239 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1240 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1241 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1242 | ||
1243 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1244 | if (!pinfoattr) | |
1245 | goto nla_put_failure; | |
1246 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1247 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1248 | pinfo->frame_qlen); | |
1249 | if (pinfo->filled & MPATH_INFO_DSN) | |
1250 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1251 | pinfo->dsn); | |
1252 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1253 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1254 | pinfo->metric); | |
1255 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1256 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1257 | pinfo->exptime); | |
1258 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1259 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1260 | pinfo->flags); | |
1261 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1262 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1263 | pinfo->discovery_timeout); | |
1264 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1265 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1266 | pinfo->discovery_retries); | |
1267 | ||
1268 | nla_nest_end(msg, pinfoattr); | |
1269 | ||
1270 | return genlmsg_end(msg, hdr); | |
1271 | ||
1272 | nla_put_failure: | |
bc3ed28c TG |
1273 | genlmsg_cancel(msg, hdr); |
1274 | return -EMSGSIZE; | |
2ec600d6 LCC |
1275 | } |
1276 | ||
1277 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
1278 | struct netlink_callback *cb) | |
1279 | { | |
1280 | int wp_idx = 0; | |
1281 | int if_idx = 0; | |
1282 | int sta_idx = cb->args[2]; | |
1283 | int wp_start = cb->args[0]; | |
1284 | int if_start = cb->args[1]; | |
1285 | struct mpath_info pinfo; | |
1286 | struct cfg80211_registered_device *dev; | |
1287 | struct wireless_dev *wdev; | |
1288 | u8 dst[ETH_ALEN]; | |
1289 | u8 next_hop[ETH_ALEN]; | |
1290 | int err; | |
1291 | int exit = 0; | |
1292 | ||
1293 | /* TODO: filter by device */ | |
1294 | mutex_lock(&cfg80211_drv_mutex); | |
1295 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
1296 | if (exit) | |
1297 | break; | |
1298 | if (++wp_idx < wp_start) | |
1299 | continue; | |
1300 | if_idx = 0; | |
1301 | ||
1302 | mutex_lock(&dev->devlist_mtx); | |
1303 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
1304 | if (exit) | |
1305 | break; | |
1306 | if (++if_idx < if_start) | |
1307 | continue; | |
1308 | if (!dev->ops->dump_mpath) | |
1309 | continue; | |
1310 | ||
1311 | for (;; ++sta_idx) { | |
1312 | rtnl_lock(); | |
1313 | err = dev->ops->dump_mpath(&dev->wiphy, | |
1314 | wdev->netdev, sta_idx, dst, | |
1315 | next_hop, &pinfo); | |
1316 | rtnl_unlock(); | |
1317 | if (err) { | |
1318 | sta_idx = 0; | |
1319 | break; | |
1320 | } | |
1321 | if (nl80211_send_mpath(skb, | |
1322 | NETLINK_CB(cb->skb).pid, | |
1323 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1324 | wdev->netdev, dst, next_hop, | |
1325 | &pinfo) < 0) { | |
1326 | exit = 1; | |
1327 | break; | |
1328 | } | |
1329 | } | |
1330 | } | |
1331 | mutex_unlock(&dev->devlist_mtx); | |
1332 | } | |
1333 | mutex_unlock(&cfg80211_drv_mutex); | |
1334 | ||
1335 | cb->args[0] = wp_idx; | |
1336 | cb->args[1] = if_idx; | |
1337 | cb->args[2] = sta_idx; | |
1338 | ||
1339 | return skb->len; | |
1340 | } | |
1341 | ||
1342 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1343 | { | |
1344 | struct cfg80211_registered_device *drv; | |
1345 | int err; | |
1346 | struct net_device *dev; | |
1347 | struct mpath_info pinfo; | |
1348 | struct sk_buff *msg; | |
1349 | u8 *dst = NULL; | |
1350 | u8 next_hop[ETH_ALEN]; | |
1351 | ||
1352 | memset(&pinfo, 0, sizeof(pinfo)); | |
1353 | ||
1354 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1358 | ||
1359 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1360 | if (err) | |
1361 | return err; | |
1362 | ||
1363 | if (!drv->ops->get_mpath) { | |
1364 | err = -EOPNOTSUPP; | |
1365 | goto out; | |
1366 | } | |
1367 | ||
1368 | rtnl_lock(); | |
1369 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); | |
1370 | rtnl_unlock(); | |
1371 | ||
1372 | if (err) | |
1373 | goto out; | |
1374 | ||
1375 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1376 | if (!msg) | |
1377 | goto out; | |
1378 | ||
1379 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1380 | dev, dst, next_hop, &pinfo) < 0) | |
1381 | goto out_free; | |
1382 | ||
1383 | err = genlmsg_unicast(msg, info->snd_pid); | |
1384 | goto out; | |
1385 | ||
1386 | out_free: | |
1387 | nlmsg_free(msg); | |
1388 | ||
1389 | out: | |
1390 | cfg80211_put_dev(drv); | |
1391 | dev_put(dev); | |
1392 | return err; | |
1393 | } | |
1394 | ||
1395 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1396 | { | |
1397 | struct cfg80211_registered_device *drv; | |
1398 | int err; | |
1399 | struct net_device *dev; | |
1400 | u8 *dst = NULL; | |
1401 | u8 *next_hop = NULL; | |
1402 | ||
1403 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1404 | return -EINVAL; | |
1405 | ||
1406 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1407 | return -EINVAL; | |
1408 | ||
1409 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1410 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1411 | ||
1412 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1413 | if (err) | |
1414 | return err; | |
1415 | ||
1416 | if (!drv->ops->change_mpath) { | |
1417 | err = -EOPNOTSUPP; | |
1418 | goto out; | |
1419 | } | |
1420 | ||
1421 | rtnl_lock(); | |
1422 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); | |
1423 | rtnl_unlock(); | |
1424 | ||
1425 | out: | |
1426 | cfg80211_put_dev(drv); | |
1427 | dev_put(dev); | |
1428 | return err; | |
1429 | } | |
1430 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1431 | { | |
1432 | struct cfg80211_registered_device *drv; | |
1433 | int err; | |
1434 | struct net_device *dev; | |
1435 | u8 *dst = NULL; | |
1436 | u8 *next_hop = NULL; | |
1437 | ||
1438 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1439 | return -EINVAL; | |
1440 | ||
1441 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1442 | return -EINVAL; | |
1443 | ||
1444 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1445 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1446 | ||
1447 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1448 | if (err) | |
1449 | return err; | |
1450 | ||
1451 | if (!drv->ops->add_mpath) { | |
1452 | err = -EOPNOTSUPP; | |
1453 | goto out; | |
1454 | } | |
1455 | ||
1456 | rtnl_lock(); | |
1457 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); | |
1458 | rtnl_unlock(); | |
1459 | ||
1460 | out: | |
1461 | cfg80211_put_dev(drv); | |
1462 | dev_put(dev); | |
1463 | return err; | |
1464 | } | |
1465 | ||
1466 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1467 | { | |
1468 | struct cfg80211_registered_device *drv; | |
1469 | int err; | |
1470 | struct net_device *dev; | |
1471 | u8 *dst = NULL; | |
1472 | ||
1473 | if (info->attrs[NL80211_ATTR_MAC]) | |
1474 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1475 | ||
1476 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1477 | if (err) | |
1478 | return err; | |
1479 | ||
1480 | if (!drv->ops->del_mpath) { | |
1481 | err = -EOPNOTSUPP; | |
1482 | goto out; | |
1483 | } | |
1484 | ||
1485 | rtnl_lock(); | |
1486 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); | |
1487 | rtnl_unlock(); | |
1488 | ||
1489 | out: | |
1490 | cfg80211_put_dev(drv); | |
1491 | dev_put(dev); | |
1492 | return err; | |
1493 | } | |
1494 | ||
55682965 JB |
1495 | static struct genl_ops nl80211_ops[] = { |
1496 | { | |
1497 | .cmd = NL80211_CMD_GET_WIPHY, | |
1498 | .doit = nl80211_get_wiphy, | |
1499 | .dumpit = nl80211_dump_wiphy, | |
1500 | .policy = nl80211_policy, | |
1501 | /* can be retrieved by unprivileged users */ | |
1502 | }, | |
1503 | { | |
1504 | .cmd = NL80211_CMD_SET_WIPHY, | |
1505 | .doit = nl80211_set_wiphy, | |
1506 | .policy = nl80211_policy, | |
1507 | .flags = GENL_ADMIN_PERM, | |
1508 | }, | |
1509 | { | |
1510 | .cmd = NL80211_CMD_GET_INTERFACE, | |
1511 | .doit = nl80211_get_interface, | |
1512 | .dumpit = nl80211_dump_interface, | |
1513 | .policy = nl80211_policy, | |
1514 | /* can be retrieved by unprivileged users */ | |
1515 | }, | |
1516 | { | |
1517 | .cmd = NL80211_CMD_SET_INTERFACE, | |
1518 | .doit = nl80211_set_interface, | |
1519 | .policy = nl80211_policy, | |
1520 | .flags = GENL_ADMIN_PERM, | |
1521 | }, | |
1522 | { | |
1523 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
1524 | .doit = nl80211_new_interface, | |
1525 | .policy = nl80211_policy, | |
1526 | .flags = GENL_ADMIN_PERM, | |
1527 | }, | |
1528 | { | |
1529 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
1530 | .doit = nl80211_del_interface, | |
1531 | .policy = nl80211_policy, | |
41ade00f JB |
1532 | .flags = GENL_ADMIN_PERM, |
1533 | }, | |
1534 | { | |
1535 | .cmd = NL80211_CMD_GET_KEY, | |
1536 | .doit = nl80211_get_key, | |
1537 | .policy = nl80211_policy, | |
1538 | .flags = GENL_ADMIN_PERM, | |
1539 | }, | |
1540 | { | |
1541 | .cmd = NL80211_CMD_SET_KEY, | |
1542 | .doit = nl80211_set_key, | |
1543 | .policy = nl80211_policy, | |
1544 | .flags = GENL_ADMIN_PERM, | |
1545 | }, | |
1546 | { | |
1547 | .cmd = NL80211_CMD_NEW_KEY, | |
1548 | .doit = nl80211_new_key, | |
1549 | .policy = nl80211_policy, | |
1550 | .flags = GENL_ADMIN_PERM, | |
1551 | }, | |
1552 | { | |
1553 | .cmd = NL80211_CMD_DEL_KEY, | |
1554 | .doit = nl80211_del_key, | |
1555 | .policy = nl80211_policy, | |
55682965 JB |
1556 | .flags = GENL_ADMIN_PERM, |
1557 | }, | |
ed1b6cc7 JB |
1558 | { |
1559 | .cmd = NL80211_CMD_SET_BEACON, | |
1560 | .policy = nl80211_policy, | |
1561 | .flags = GENL_ADMIN_PERM, | |
1562 | .doit = nl80211_addset_beacon, | |
1563 | }, | |
1564 | { | |
1565 | .cmd = NL80211_CMD_NEW_BEACON, | |
1566 | .policy = nl80211_policy, | |
1567 | .flags = GENL_ADMIN_PERM, | |
1568 | .doit = nl80211_addset_beacon, | |
1569 | }, | |
1570 | { | |
1571 | .cmd = NL80211_CMD_DEL_BEACON, | |
1572 | .policy = nl80211_policy, | |
1573 | .flags = GENL_ADMIN_PERM, | |
1574 | .doit = nl80211_del_beacon, | |
1575 | }, | |
5727ef1b JB |
1576 | { |
1577 | .cmd = NL80211_CMD_GET_STATION, | |
1578 | .doit = nl80211_get_station, | |
2ec600d6 | 1579 | .dumpit = nl80211_dump_station, |
5727ef1b JB |
1580 | .policy = nl80211_policy, |
1581 | .flags = GENL_ADMIN_PERM, | |
1582 | }, | |
1583 | { | |
1584 | .cmd = NL80211_CMD_SET_STATION, | |
1585 | .doit = nl80211_set_station, | |
1586 | .policy = nl80211_policy, | |
1587 | .flags = GENL_ADMIN_PERM, | |
1588 | }, | |
1589 | { | |
1590 | .cmd = NL80211_CMD_NEW_STATION, | |
1591 | .doit = nl80211_new_station, | |
1592 | .policy = nl80211_policy, | |
1593 | .flags = GENL_ADMIN_PERM, | |
1594 | }, | |
1595 | { | |
1596 | .cmd = NL80211_CMD_DEL_STATION, | |
1597 | .doit = nl80211_del_station, | |
1598 | .policy = nl80211_policy, | |
2ec600d6 LCC |
1599 | .flags = GENL_ADMIN_PERM, |
1600 | }, | |
1601 | { | |
1602 | .cmd = NL80211_CMD_GET_MPATH, | |
1603 | .doit = nl80211_get_mpath, | |
1604 | .dumpit = nl80211_dump_mpath, | |
1605 | .policy = nl80211_policy, | |
1606 | .flags = GENL_ADMIN_PERM, | |
1607 | }, | |
1608 | { | |
1609 | .cmd = NL80211_CMD_SET_MPATH, | |
1610 | .doit = nl80211_set_mpath, | |
1611 | .policy = nl80211_policy, | |
1612 | .flags = GENL_ADMIN_PERM, | |
1613 | }, | |
1614 | { | |
1615 | .cmd = NL80211_CMD_NEW_MPATH, | |
1616 | .doit = nl80211_new_mpath, | |
1617 | .policy = nl80211_policy, | |
1618 | .flags = GENL_ADMIN_PERM, | |
1619 | }, | |
1620 | { | |
1621 | .cmd = NL80211_CMD_DEL_MPATH, | |
1622 | .doit = nl80211_del_mpath, | |
1623 | .policy = nl80211_policy, | |
5727ef1b JB |
1624 | .flags = GENL_ADMIN_PERM, |
1625 | }, | |
55682965 JB |
1626 | }; |
1627 | ||
1628 | /* multicast groups */ | |
1629 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
1630 | .name = "config", | |
1631 | }; | |
1632 | ||
1633 | /* notification functions */ | |
1634 | ||
1635 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
1636 | { | |
1637 | struct sk_buff *msg; | |
1638 | ||
1639 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1640 | if (!msg) | |
1641 | return; | |
1642 | ||
1643 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
1644 | nlmsg_free(msg); | |
1645 | return; | |
1646 | } | |
1647 | ||
1648 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
1649 | } | |
1650 | ||
1651 | /* initialisation/exit functions */ | |
1652 | ||
1653 | int nl80211_init(void) | |
1654 | { | |
1655 | int err, i; | |
1656 | ||
1657 | err = genl_register_family(&nl80211_fam); | |
1658 | if (err) | |
1659 | return err; | |
1660 | ||
1661 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
1662 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
1663 | if (err) | |
1664 | goto err_out; | |
1665 | } | |
1666 | ||
1667 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
1668 | if (err) | |
1669 | goto err_out; | |
1670 | ||
1671 | return 0; | |
1672 | err_out: | |
1673 | genl_unregister_family(&nl80211_fam); | |
1674 | return err; | |
1675 | } | |
1676 | ||
1677 | void nl80211_exit(void) | |
1678 | { | |
1679 | genl_unregister_family(&nl80211_fam); | |
1680 | } |