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Commit | Line | Data |
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55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> | |
5 | */ | |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
10 | #include <linux/mutex.h> | |
11 | #include <linux/list.h> | |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
17 | #include <net/genetlink.h> | |
18 | #include <net/cfg80211.h> | |
19 | #include "core.h" | |
20 | #include "nl80211.h" | |
21 | ||
22 | /* the netlink family */ | |
23 | static struct genl_family nl80211_fam = { | |
24 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
25 | .name = "nl80211", /* have users key off the name instead */ | |
26 | .hdrsize = 0, /* no private header */ | |
27 | .version = 1, /* no particular meaning now */ | |
28 | .maxattr = NL80211_ATTR_MAX, | |
29 | }; | |
30 | ||
31 | /* internal helper: get drv and dev */ | |
32 | static int get_drv_dev_by_info_ifindex(struct genl_info *info, | |
33 | struct cfg80211_registered_device **drv, | |
34 | struct net_device **dev) | |
35 | { | |
36 | int ifindex; | |
37 | ||
38 | if (!info->attrs[NL80211_ATTR_IFINDEX]) | |
39 | return -EINVAL; | |
40 | ||
41 | ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
42 | *dev = dev_get_by_index(&init_net, ifindex); | |
43 | if (!*dev) | |
44 | return -ENODEV; | |
45 | ||
46 | *drv = cfg80211_get_dev_from_ifindex(ifindex); | |
47 | if (IS_ERR(*drv)) { | |
48 | dev_put(*dev); | |
49 | return PTR_ERR(*drv); | |
50 | } | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
55 | /* policy for the attributes */ | |
56 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
57 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
58 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
59 | .len = BUS_ID_SIZE-1 }, | |
60 | ||
61 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
62 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
63 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
64 | |
65 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
66 | ||
67 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
68 | .len = WLAN_MAX_KEY_LEN }, | |
69 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
70 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
71 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
ed1b6cc7 JB |
72 | |
73 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
74 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
76 | .len = IEEE80211_MAX_DATA_LEN }, | |
77 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
78 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
79 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
80 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
81 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
82 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
83 | .len = NL80211_MAX_SUPP_RATES }, | |
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) { | |
b4637271 | 202 | if (++idx <= start) |
55682965 JB |
203 | continue; |
204 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
205 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
206 | dev) < 0) { |
207 | idx--; | |
55682965 | 208 | break; |
b4637271 | 209 | } |
55682965 JB |
210 | } |
211 | mutex_unlock(&cfg80211_drv_mutex); | |
212 | ||
213 | cb->args[0] = idx; | |
214 | ||
215 | return skb->len; | |
216 | } | |
217 | ||
218 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
219 | { | |
220 | struct sk_buff *msg; | |
221 | struct cfg80211_registered_device *dev; | |
222 | ||
223 | dev = cfg80211_get_dev_from_info(info); | |
224 | if (IS_ERR(dev)) | |
225 | return PTR_ERR(dev); | |
226 | ||
227 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
228 | if (!msg) | |
229 | goto out_err; | |
230 | ||
231 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
232 | goto out_free; | |
233 | ||
234 | cfg80211_put_dev(dev); | |
235 | ||
236 | return genlmsg_unicast(msg, info->snd_pid); | |
237 | ||
238 | out_free: | |
239 | nlmsg_free(msg); | |
240 | out_err: | |
241 | cfg80211_put_dev(dev); | |
242 | return -ENOBUFS; | |
243 | } | |
244 | ||
245 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) | |
246 | { | |
247 | struct cfg80211_registered_device *rdev; | |
248 | int result; | |
249 | ||
250 | if (!info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
251 | return -EINVAL; | |
252 | ||
253 | rdev = cfg80211_get_dev_from_info(info); | |
254 | if (IS_ERR(rdev)) | |
255 | return PTR_ERR(rdev); | |
256 | ||
257 | result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
258 | ||
259 | cfg80211_put_dev(rdev); | |
260 | return result; | |
261 | } | |
262 | ||
263 | ||
264 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
265 | struct net_device *dev) | |
266 | { | |
267 | void *hdr; | |
268 | ||
269 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
270 | if (!hdr) | |
271 | return -1; | |
272 | ||
273 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
274 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
275 | /* TODO: interface type */ | |
276 | return genlmsg_end(msg, hdr); | |
277 | ||
278 | nla_put_failure: | |
bc3ed28c TG |
279 | genlmsg_cancel(msg, hdr); |
280 | return -EMSGSIZE; | |
55682965 JB |
281 | } |
282 | ||
283 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
284 | { | |
285 | int wp_idx = 0; | |
286 | int if_idx = 0; | |
287 | int wp_start = cb->args[0]; | |
288 | int if_start = cb->args[1]; | |
289 | struct cfg80211_registered_device *dev; | |
290 | struct wireless_dev *wdev; | |
291 | ||
292 | mutex_lock(&cfg80211_drv_mutex); | |
293 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
294 | if (++wp_idx < wp_start) | |
295 | continue; | |
296 | if_idx = 0; | |
297 | ||
298 | mutex_lock(&dev->devlist_mtx); | |
299 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
300 | if (++if_idx < if_start) | |
301 | continue; | |
302 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, | |
303 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
304 | wdev->netdev) < 0) | |
305 | break; | |
306 | } | |
307 | mutex_unlock(&dev->devlist_mtx); | |
308 | } | |
309 | mutex_unlock(&cfg80211_drv_mutex); | |
310 | ||
311 | cb->args[0] = wp_idx; | |
312 | cb->args[1] = if_idx; | |
313 | ||
314 | return skb->len; | |
315 | } | |
316 | ||
317 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
318 | { | |
319 | struct sk_buff *msg; | |
320 | struct cfg80211_registered_device *dev; | |
321 | struct net_device *netdev; | |
322 | int err; | |
323 | ||
324 | err = get_drv_dev_by_info_ifindex(info, &dev, &netdev); | |
325 | if (err) | |
326 | return err; | |
327 | ||
328 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
329 | if (!msg) | |
330 | goto out_err; | |
331 | ||
332 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
333 | goto out_free; | |
334 | ||
335 | dev_put(netdev); | |
336 | cfg80211_put_dev(dev); | |
337 | ||
338 | return genlmsg_unicast(msg, info->snd_pid); | |
339 | ||
340 | out_free: | |
341 | nlmsg_free(msg); | |
342 | out_err: | |
343 | dev_put(netdev); | |
344 | cfg80211_put_dev(dev); | |
345 | return -ENOBUFS; | |
346 | } | |
347 | ||
66f7ac50 MW |
348 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
349 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
350 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
351 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
352 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
353 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
354 | }; | |
355 | ||
356 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
357 | { | |
358 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
359 | int flag; | |
360 | ||
361 | *mntrflags = 0; | |
362 | ||
363 | if (!nla) | |
364 | return -EINVAL; | |
365 | ||
366 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
367 | nla, mntr_flags_policy)) | |
368 | return -EINVAL; | |
369 | ||
370 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
371 | if (flags[flag]) | |
372 | *mntrflags |= (1<<flag); | |
373 | ||
374 | return 0; | |
375 | } | |
376 | ||
55682965 JB |
377 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
378 | { | |
379 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 380 | struct vif_params params; |
55682965 JB |
381 | int err, ifindex; |
382 | enum nl80211_iftype type; | |
383 | struct net_device *dev; | |
66f7ac50 | 384 | u32 flags; |
55682965 | 385 | |
2ec600d6 LCC |
386 | memset(¶ms, 0, sizeof(params)); |
387 | ||
55682965 JB |
388 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
389 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
390 | if (type > NL80211_IFTYPE_MAX) | |
391 | return -EINVAL; | |
392 | } else | |
393 | return -EINVAL; | |
394 | ||
395 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
396 | if (err) | |
397 | return err; | |
398 | ifindex = dev->ifindex; | |
399 | dev_put(dev); | |
400 | ||
401 | if (!drv->ops->change_virtual_intf) { | |
402 | err = -EOPNOTSUPP; | |
403 | goto unlock; | |
404 | } | |
405 | ||
2ec600d6 LCC |
406 | if (type == NL80211_IFTYPE_MESH_POINT && |
407 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
408 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
409 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
410 | } | |
411 | ||
55682965 | 412 | rtnl_lock(); |
66f7ac50 MW |
413 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
414 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
415 | &flags); | |
416 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
2ec600d6 | 417 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
418 | rtnl_unlock(); |
419 | ||
420 | unlock: | |
421 | cfg80211_put_dev(drv); | |
422 | return err; | |
423 | } | |
424 | ||
425 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
426 | { | |
427 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 428 | struct vif_params params; |
55682965 JB |
429 | int err; |
430 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 431 | u32 flags; |
55682965 | 432 | |
2ec600d6 LCC |
433 | memset(¶ms, 0, sizeof(params)); |
434 | ||
55682965 JB |
435 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
436 | return -EINVAL; | |
437 | ||
438 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
439 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
440 | if (type > NL80211_IFTYPE_MAX) | |
441 | return -EINVAL; | |
442 | } | |
443 | ||
444 | drv = cfg80211_get_dev_from_info(info); | |
445 | if (IS_ERR(drv)) | |
446 | return PTR_ERR(drv); | |
447 | ||
448 | if (!drv->ops->add_virtual_intf) { | |
449 | err = -EOPNOTSUPP; | |
450 | goto unlock; | |
451 | } | |
452 | ||
2ec600d6 LCC |
453 | if (type == NL80211_IFTYPE_MESH_POINT && |
454 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
455 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
456 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
457 | } | |
458 | ||
55682965 | 459 | rtnl_lock(); |
66f7ac50 MW |
460 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
461 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
462 | &flags); | |
55682965 | 463 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 464 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 465 | type, err ? NULL : &flags, ¶ms); |
55682965 JB |
466 | rtnl_unlock(); |
467 | ||
2ec600d6 | 468 | |
55682965 JB |
469 | unlock: |
470 | cfg80211_put_dev(drv); | |
471 | return err; | |
472 | } | |
473 | ||
474 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
475 | { | |
476 | struct cfg80211_registered_device *drv; | |
477 | int ifindex, err; | |
478 | struct net_device *dev; | |
479 | ||
480 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
481 | if (err) | |
482 | return err; | |
483 | ifindex = dev->ifindex; | |
484 | dev_put(dev); | |
485 | ||
486 | if (!drv->ops->del_virtual_intf) { | |
487 | err = -EOPNOTSUPP; | |
488 | goto out; | |
489 | } | |
490 | ||
491 | rtnl_lock(); | |
492 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); | |
493 | rtnl_unlock(); | |
494 | ||
495 | out: | |
496 | cfg80211_put_dev(drv); | |
497 | return err; | |
498 | } | |
499 | ||
41ade00f JB |
500 | struct get_key_cookie { |
501 | struct sk_buff *msg; | |
502 | int error; | |
503 | }; | |
504 | ||
505 | static void get_key_callback(void *c, struct key_params *params) | |
506 | { | |
507 | struct get_key_cookie *cookie = c; | |
508 | ||
509 | if (params->key) | |
510 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
511 | params->key_len, params->key); | |
512 | ||
513 | if (params->seq) | |
514 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
515 | params->seq_len, params->seq); | |
516 | ||
517 | if (params->cipher) | |
518 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
519 | params->cipher); | |
520 | ||
521 | return; | |
522 | nla_put_failure: | |
523 | cookie->error = 1; | |
524 | } | |
525 | ||
526 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
527 | { | |
528 | struct cfg80211_registered_device *drv; | |
529 | int err; | |
530 | struct net_device *dev; | |
531 | u8 key_idx = 0; | |
532 | u8 *mac_addr = NULL; | |
533 | struct get_key_cookie cookie = { | |
534 | .error = 0, | |
535 | }; | |
536 | void *hdr; | |
537 | struct sk_buff *msg; | |
538 | ||
539 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
540 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
541 | ||
542 | if (key_idx > 3) | |
543 | return -EINVAL; | |
544 | ||
545 | if (info->attrs[NL80211_ATTR_MAC]) | |
546 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
547 | ||
548 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
549 | if (err) | |
550 | return err; | |
551 | ||
552 | if (!drv->ops->get_key) { | |
553 | err = -EOPNOTSUPP; | |
554 | goto out; | |
555 | } | |
556 | ||
557 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
558 | if (!msg) { | |
559 | err = -ENOMEM; | |
560 | goto out; | |
561 | } | |
562 | ||
563 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
564 | NL80211_CMD_NEW_KEY); | |
565 | ||
566 | if (IS_ERR(hdr)) { | |
567 | err = PTR_ERR(hdr); | |
568 | goto out; | |
569 | } | |
570 | ||
571 | cookie.msg = msg; | |
572 | ||
573 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
574 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
575 | if (mac_addr) | |
576 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
577 | ||
578 | rtnl_lock(); | |
579 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, | |
580 | &cookie, get_key_callback); | |
581 | rtnl_unlock(); | |
582 | ||
583 | if (err) | |
584 | goto out; | |
585 | ||
586 | if (cookie.error) | |
587 | goto nla_put_failure; | |
588 | ||
589 | genlmsg_end(msg, hdr); | |
590 | err = genlmsg_unicast(msg, info->snd_pid); | |
591 | goto out; | |
592 | ||
593 | nla_put_failure: | |
594 | err = -ENOBUFS; | |
595 | nlmsg_free(msg); | |
596 | out: | |
597 | cfg80211_put_dev(drv); | |
598 | dev_put(dev); | |
599 | return err; | |
600 | } | |
601 | ||
602 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
603 | { | |
604 | struct cfg80211_registered_device *drv; | |
605 | int err; | |
606 | struct net_device *dev; | |
607 | u8 key_idx; | |
608 | ||
609 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
610 | return -EINVAL; | |
611 | ||
612 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
613 | ||
614 | if (key_idx > 3) | |
615 | return -EINVAL; | |
616 | ||
617 | /* currently only support setting default key */ | |
618 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT]) | |
619 | return -EINVAL; | |
620 | ||
621 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
622 | if (err) | |
623 | return err; | |
624 | ||
625 | if (!drv->ops->set_default_key) { | |
626 | err = -EOPNOTSUPP; | |
627 | goto out; | |
628 | } | |
629 | ||
630 | rtnl_lock(); | |
631 | err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx); | |
632 | rtnl_unlock(); | |
633 | ||
634 | out: | |
635 | cfg80211_put_dev(drv); | |
636 | dev_put(dev); | |
637 | return err; | |
638 | } | |
639 | ||
640 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
641 | { | |
642 | struct cfg80211_registered_device *drv; | |
643 | int err; | |
644 | struct net_device *dev; | |
645 | struct key_params params; | |
646 | u8 key_idx = 0; | |
647 | u8 *mac_addr = NULL; | |
648 | ||
649 | memset(¶ms, 0, sizeof(params)); | |
650 | ||
651 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
652 | return -EINVAL; | |
653 | ||
654 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
655 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
656 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
657 | } | |
658 | ||
659 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
660 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
661 | ||
662 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
663 | ||
664 | if (info->attrs[NL80211_ATTR_MAC]) | |
665 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
666 | ||
667 | if (key_idx > 3) | |
668 | return -EINVAL; | |
669 | ||
670 | /* | |
671 | * Disallow pairwise keys with non-zero index unless it's WEP | |
672 | * (because current deployments use pairwise WEP keys with | |
673 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
674 | */ | |
675 | if (mac_addr && key_idx && | |
676 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
677 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
678 | return -EINVAL; | |
679 | ||
680 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
681 | switch (params.cipher) { | |
682 | case WLAN_CIPHER_SUITE_WEP40: | |
683 | if (params.key_len != 5) | |
684 | return -EINVAL; | |
685 | break; | |
686 | case WLAN_CIPHER_SUITE_TKIP: | |
687 | if (params.key_len != 32) | |
688 | return -EINVAL; | |
689 | break; | |
690 | case WLAN_CIPHER_SUITE_CCMP: | |
691 | if (params.key_len != 16) | |
692 | return -EINVAL; | |
693 | break; | |
694 | case WLAN_CIPHER_SUITE_WEP104: | |
695 | if (params.key_len != 13) | |
696 | return -EINVAL; | |
697 | break; | |
698 | default: | |
699 | return -EINVAL; | |
700 | } | |
701 | ||
702 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
703 | if (err) | |
704 | return err; | |
705 | ||
706 | if (!drv->ops->add_key) { | |
707 | err = -EOPNOTSUPP; | |
708 | goto out; | |
709 | } | |
710 | ||
711 | rtnl_lock(); | |
712 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); | |
713 | rtnl_unlock(); | |
714 | ||
715 | out: | |
716 | cfg80211_put_dev(drv); | |
717 | dev_put(dev); | |
718 | return err; | |
719 | } | |
720 | ||
721 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
722 | { | |
723 | struct cfg80211_registered_device *drv; | |
724 | int err; | |
725 | struct net_device *dev; | |
726 | u8 key_idx = 0; | |
727 | u8 *mac_addr = NULL; | |
728 | ||
729 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
730 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
731 | ||
732 | if (key_idx > 3) | |
733 | return -EINVAL; | |
734 | ||
735 | if (info->attrs[NL80211_ATTR_MAC]) | |
736 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
737 | ||
738 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
739 | if (err) | |
740 | return err; | |
741 | ||
742 | if (!drv->ops->del_key) { | |
743 | err = -EOPNOTSUPP; | |
744 | goto out; | |
745 | } | |
746 | ||
747 | rtnl_lock(); | |
748 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); | |
749 | rtnl_unlock(); | |
750 | ||
751 | out: | |
752 | cfg80211_put_dev(drv); | |
753 | dev_put(dev); | |
754 | return err; | |
755 | } | |
756 | ||
ed1b6cc7 JB |
757 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
758 | { | |
759 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
760 | struct beacon_parameters *info); | |
761 | struct cfg80211_registered_device *drv; | |
762 | int err; | |
763 | struct net_device *dev; | |
764 | struct beacon_parameters params; | |
765 | int haveinfo = 0; | |
766 | ||
767 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
768 | if (err) | |
769 | return err; | |
770 | ||
771 | switch (info->genlhdr->cmd) { | |
772 | case NL80211_CMD_NEW_BEACON: | |
773 | /* these are required for NEW_BEACON */ | |
774 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
775 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
776 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
777 | err = -EINVAL; | |
778 | goto out; | |
779 | } | |
780 | ||
781 | call = drv->ops->add_beacon; | |
782 | break; | |
783 | case NL80211_CMD_SET_BEACON: | |
784 | call = drv->ops->set_beacon; | |
785 | break; | |
786 | default: | |
787 | WARN_ON(1); | |
788 | err = -EOPNOTSUPP; | |
789 | goto out; | |
790 | } | |
791 | ||
792 | if (!call) { | |
793 | err = -EOPNOTSUPP; | |
794 | goto out; | |
795 | } | |
796 | ||
797 | memset(¶ms, 0, sizeof(params)); | |
798 | ||
799 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
800 | params.interval = | |
801 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
802 | haveinfo = 1; | |
803 | } | |
804 | ||
805 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
806 | params.dtim_period = | |
807 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
808 | haveinfo = 1; | |
809 | } | |
810 | ||
811 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
812 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
813 | params.head_len = | |
814 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
815 | haveinfo = 1; | |
816 | } | |
817 | ||
818 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
819 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
820 | params.tail_len = | |
821 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
822 | haveinfo = 1; | |
823 | } | |
824 | ||
825 | if (!haveinfo) { | |
826 | err = -EINVAL; | |
827 | goto out; | |
828 | } | |
829 | ||
830 | rtnl_lock(); | |
831 | err = call(&drv->wiphy, dev, ¶ms); | |
832 | rtnl_unlock(); | |
833 | ||
834 | out: | |
835 | cfg80211_put_dev(drv); | |
836 | dev_put(dev); | |
837 | return err; | |
838 | } | |
839 | ||
840 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
841 | { | |
842 | struct cfg80211_registered_device *drv; | |
843 | int err; | |
844 | struct net_device *dev; | |
845 | ||
846 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
847 | if (err) | |
848 | return err; | |
849 | ||
850 | if (!drv->ops->del_beacon) { | |
851 | err = -EOPNOTSUPP; | |
852 | goto out; | |
853 | } | |
854 | ||
855 | rtnl_lock(); | |
856 | err = drv->ops->del_beacon(&drv->wiphy, dev); | |
857 | rtnl_unlock(); | |
858 | ||
859 | out: | |
860 | cfg80211_put_dev(drv); | |
861 | dev_put(dev); | |
862 | return err; | |
863 | } | |
864 | ||
5727ef1b JB |
865 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
866 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
867 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
868 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
869 | }; | |
870 | ||
871 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
872 | { | |
873 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
874 | int flag; | |
875 | ||
876 | *staflags = 0; | |
877 | ||
878 | if (!nla) | |
879 | return 0; | |
880 | ||
881 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
882 | nla, sta_flags_policy)) | |
883 | return -EINVAL; | |
884 | ||
885 | *staflags = STATION_FLAG_CHANGED; | |
886 | ||
887 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
888 | if (flags[flag]) | |
889 | *staflags |= (1<<flag); | |
890 | ||
891 | return 0; | |
892 | } | |
893 | ||
fd5b74dc JB |
894 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
895 | int flags, struct net_device *dev, | |
2ec600d6 | 896 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
897 | { |
898 | void *hdr; | |
2ec600d6 | 899 | struct nlattr *sinfoattr; |
fd5b74dc JB |
900 | |
901 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
902 | if (!hdr) | |
903 | return -1; | |
904 | ||
905 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
906 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
907 | ||
2ec600d6 LCC |
908 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
909 | if (!sinfoattr) | |
fd5b74dc | 910 | goto nla_put_failure; |
2ec600d6 LCC |
911 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
912 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
913 | sinfo->inactive_time); | |
914 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
915 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
916 | sinfo->rx_bytes); | |
917 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
918 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
919 | sinfo->tx_bytes); | |
920 | if (sinfo->filled & STATION_INFO_LLID) | |
921 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
922 | sinfo->llid); | |
923 | if (sinfo->filled & STATION_INFO_PLID) | |
924 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
925 | sinfo->plid); | |
926 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
927 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
928 | sinfo->plink_state); | |
929 | ||
930 | nla_nest_end(msg, sinfoattr); | |
fd5b74dc JB |
931 | |
932 | return genlmsg_end(msg, hdr); | |
933 | ||
934 | nla_put_failure: | |
bc3ed28c TG |
935 | genlmsg_cancel(msg, hdr); |
936 | return -EMSGSIZE; | |
fd5b74dc JB |
937 | } |
938 | ||
2ec600d6 LCC |
939 | static int nl80211_dump_station(struct sk_buff *skb, |
940 | struct netlink_callback *cb) | |
941 | { | |
942 | int wp_idx = 0; | |
943 | int if_idx = 0; | |
944 | int sta_idx = cb->args[2]; | |
945 | int wp_start = cb->args[0]; | |
946 | int if_start = cb->args[1]; | |
947 | struct station_info sinfo; | |
948 | struct cfg80211_registered_device *dev; | |
949 | struct wireless_dev *wdev; | |
950 | u8 mac_addr[ETH_ALEN]; | |
951 | int err; | |
952 | int exit = 0; | |
953 | ||
954 | /* TODO: filter by device */ | |
955 | mutex_lock(&cfg80211_drv_mutex); | |
956 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
957 | if (exit) | |
958 | break; | |
959 | if (++wp_idx < wp_start) | |
960 | continue; | |
961 | if_idx = 0; | |
962 | ||
963 | mutex_lock(&dev->devlist_mtx); | |
964 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
965 | if (exit) | |
966 | break; | |
967 | if (++if_idx < if_start) | |
968 | continue; | |
969 | if (!dev->ops->dump_station) | |
970 | continue; | |
971 | ||
972 | for (;; ++sta_idx) { | |
973 | rtnl_lock(); | |
974 | err = dev->ops->dump_station(&dev->wiphy, | |
975 | wdev->netdev, sta_idx, mac_addr, | |
976 | &sinfo); | |
977 | rtnl_unlock(); | |
978 | if (err) { | |
979 | sta_idx = 0; | |
980 | break; | |
981 | } | |
982 | if (nl80211_send_station(skb, | |
983 | NETLINK_CB(cb->skb).pid, | |
984 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
985 | wdev->netdev, mac_addr, | |
986 | &sinfo) < 0) { | |
987 | exit = 1; | |
988 | break; | |
989 | } | |
990 | } | |
991 | } | |
992 | mutex_unlock(&dev->devlist_mtx); | |
993 | } | |
994 | mutex_unlock(&cfg80211_drv_mutex); | |
995 | ||
996 | cb->args[0] = wp_idx; | |
997 | cb->args[1] = if_idx; | |
998 | cb->args[2] = sta_idx; | |
999 | ||
1000 | return skb->len; | |
1001 | } | |
fd5b74dc | 1002 | |
5727ef1b JB |
1003 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1004 | { | |
fd5b74dc JB |
1005 | struct cfg80211_registered_device *drv; |
1006 | int err; | |
1007 | struct net_device *dev; | |
2ec600d6 | 1008 | struct station_info sinfo; |
fd5b74dc JB |
1009 | struct sk_buff *msg; |
1010 | u8 *mac_addr = NULL; | |
1011 | ||
2ec600d6 | 1012 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1013 | |
1014 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1015 | return -EINVAL; | |
1016 | ||
1017 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1018 | ||
1019 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1020 | if (err) | |
1021 | return err; | |
1022 | ||
1023 | if (!drv->ops->get_station) { | |
1024 | err = -EOPNOTSUPP; | |
1025 | goto out; | |
1026 | } | |
1027 | ||
1028 | rtnl_lock(); | |
2ec600d6 | 1029 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc JB |
1030 | rtnl_unlock(); |
1031 | ||
2ec600d6 LCC |
1032 | if (err) |
1033 | goto out; | |
1034 | ||
fd5b74dc JB |
1035 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1036 | if (!msg) | |
1037 | goto out; | |
1038 | ||
1039 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1040 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1041 | goto out_free; |
1042 | ||
1043 | err = genlmsg_unicast(msg, info->snd_pid); | |
1044 | goto out; | |
1045 | ||
1046 | out_free: | |
1047 | nlmsg_free(msg); | |
1048 | ||
1049 | out: | |
1050 | cfg80211_put_dev(drv); | |
1051 | dev_put(dev); | |
1052 | return err; | |
5727ef1b JB |
1053 | } |
1054 | ||
1055 | /* | |
1056 | * Get vlan interface making sure it is on the right wiphy. | |
1057 | */ | |
1058 | static int get_vlan(struct nlattr *vlanattr, | |
1059 | struct cfg80211_registered_device *rdev, | |
1060 | struct net_device **vlan) | |
1061 | { | |
1062 | *vlan = NULL; | |
1063 | ||
1064 | if (vlanattr) { | |
1065 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1066 | if (!*vlan) | |
1067 | return -ENODEV; | |
1068 | if (!(*vlan)->ieee80211_ptr) | |
1069 | return -EINVAL; | |
1070 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1071 | return -EINVAL; | |
1072 | } | |
1073 | return 0; | |
1074 | } | |
1075 | ||
1076 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1077 | { | |
1078 | struct cfg80211_registered_device *drv; | |
1079 | int err; | |
1080 | struct net_device *dev; | |
1081 | struct station_parameters params; | |
1082 | u8 *mac_addr = NULL; | |
1083 | ||
1084 | memset(¶ms, 0, sizeof(params)); | |
1085 | ||
1086 | params.listen_interval = -1; | |
1087 | ||
1088 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1089 | return -EINVAL; | |
1090 | ||
1091 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1092 | return -EINVAL; | |
1093 | ||
1094 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1095 | ||
1096 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1097 | params.supported_rates = | |
1098 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1099 | params.supported_rates_len = | |
1100 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1101 | } | |
1102 | ||
1103 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1104 | params.listen_interval = | |
1105 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1106 | ||
1107 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1108 | ¶ms.station_flags)) | |
1109 | return -EINVAL; | |
1110 | ||
2ec600d6 LCC |
1111 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1112 | params.plink_action = | |
1113 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1114 | ||
5727ef1b JB |
1115 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); |
1116 | if (err) | |
1117 | return err; | |
1118 | ||
1119 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1120 | if (err) | |
1121 | goto out; | |
1122 | ||
1123 | if (!drv->ops->change_station) { | |
1124 | err = -EOPNOTSUPP; | |
1125 | goto out; | |
1126 | } | |
1127 | ||
1128 | rtnl_lock(); | |
1129 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1130 | rtnl_unlock(); | |
1131 | ||
1132 | out: | |
1133 | if (params.vlan) | |
1134 | dev_put(params.vlan); | |
1135 | cfg80211_put_dev(drv); | |
1136 | dev_put(dev); | |
1137 | return err; | |
1138 | } | |
1139 | ||
1140 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1141 | { | |
1142 | struct cfg80211_registered_device *drv; | |
1143 | int err; | |
1144 | struct net_device *dev; | |
1145 | struct station_parameters params; | |
1146 | u8 *mac_addr = NULL; | |
1147 | ||
1148 | memset(¶ms, 0, sizeof(params)); | |
1149 | ||
1150 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1151 | return -EINVAL; | |
1152 | ||
1153 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1154 | return -EINVAL; | |
1155 | ||
1156 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1157 | return -EINVAL; | |
1158 | ||
1159 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1160 | return -EINVAL; | |
1161 | ||
1162 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1163 | params.supported_rates = | |
1164 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1165 | params.supported_rates_len = | |
1166 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1167 | params.listen_interval = | |
1168 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1169 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
5727ef1b JB |
1170 | |
1171 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1172 | ¶ms.station_flags)) | |
1173 | return -EINVAL; | |
1174 | ||
1175 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1176 | if (err) | |
1177 | return err; | |
1178 | ||
1179 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1180 | if (err) | |
1181 | goto out; | |
1182 | ||
1183 | if (!drv->ops->add_station) { | |
1184 | err = -EOPNOTSUPP; | |
1185 | goto out; | |
1186 | } | |
1187 | ||
1188 | rtnl_lock(); | |
1189 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); | |
1190 | rtnl_unlock(); | |
1191 | ||
1192 | out: | |
1193 | if (params.vlan) | |
1194 | dev_put(params.vlan); | |
1195 | cfg80211_put_dev(drv); | |
1196 | dev_put(dev); | |
1197 | return err; | |
1198 | } | |
1199 | ||
1200 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1201 | { | |
1202 | struct cfg80211_registered_device *drv; | |
1203 | int err; | |
1204 | struct net_device *dev; | |
1205 | u8 *mac_addr = NULL; | |
1206 | ||
1207 | if (info->attrs[NL80211_ATTR_MAC]) | |
1208 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1209 | ||
1210 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1211 | if (err) | |
1212 | return err; | |
1213 | ||
1214 | if (!drv->ops->del_station) { | |
1215 | err = -EOPNOTSUPP; | |
1216 | goto out; | |
1217 | } | |
1218 | ||
1219 | rtnl_lock(); | |
1220 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); | |
1221 | rtnl_unlock(); | |
1222 | ||
1223 | out: | |
1224 | cfg80211_put_dev(drv); | |
1225 | dev_put(dev); | |
1226 | return err; | |
1227 | } | |
1228 | ||
2ec600d6 LCC |
1229 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1230 | int flags, struct net_device *dev, | |
1231 | u8 *dst, u8 *next_hop, | |
1232 | struct mpath_info *pinfo) | |
1233 | { | |
1234 | void *hdr; | |
1235 | struct nlattr *pinfoattr; | |
1236 | ||
1237 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1238 | if (!hdr) | |
1239 | return -1; | |
1240 | ||
1241 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1242 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1243 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1244 | ||
1245 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1246 | if (!pinfoattr) | |
1247 | goto nla_put_failure; | |
1248 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1249 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1250 | pinfo->frame_qlen); | |
1251 | if (pinfo->filled & MPATH_INFO_DSN) | |
1252 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1253 | pinfo->dsn); | |
1254 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1255 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1256 | pinfo->metric); | |
1257 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1258 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1259 | pinfo->exptime); | |
1260 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1261 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1262 | pinfo->flags); | |
1263 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1264 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1265 | pinfo->discovery_timeout); | |
1266 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1267 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1268 | pinfo->discovery_retries); | |
1269 | ||
1270 | nla_nest_end(msg, pinfoattr); | |
1271 | ||
1272 | return genlmsg_end(msg, hdr); | |
1273 | ||
1274 | nla_put_failure: | |
bc3ed28c TG |
1275 | genlmsg_cancel(msg, hdr); |
1276 | return -EMSGSIZE; | |
2ec600d6 LCC |
1277 | } |
1278 | ||
1279 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
1280 | struct netlink_callback *cb) | |
1281 | { | |
1282 | int wp_idx = 0; | |
1283 | int if_idx = 0; | |
1284 | int sta_idx = cb->args[2]; | |
1285 | int wp_start = cb->args[0]; | |
1286 | int if_start = cb->args[1]; | |
1287 | struct mpath_info pinfo; | |
1288 | struct cfg80211_registered_device *dev; | |
1289 | struct wireless_dev *wdev; | |
1290 | u8 dst[ETH_ALEN]; | |
1291 | u8 next_hop[ETH_ALEN]; | |
1292 | int err; | |
1293 | int exit = 0; | |
1294 | ||
1295 | /* TODO: filter by device */ | |
1296 | mutex_lock(&cfg80211_drv_mutex); | |
1297 | list_for_each_entry(dev, &cfg80211_drv_list, list) { | |
1298 | if (exit) | |
1299 | break; | |
1300 | if (++wp_idx < wp_start) | |
1301 | continue; | |
1302 | if_idx = 0; | |
1303 | ||
1304 | mutex_lock(&dev->devlist_mtx); | |
1305 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
1306 | if (exit) | |
1307 | break; | |
1308 | if (++if_idx < if_start) | |
1309 | continue; | |
1310 | if (!dev->ops->dump_mpath) | |
1311 | continue; | |
1312 | ||
1313 | for (;; ++sta_idx) { | |
1314 | rtnl_lock(); | |
1315 | err = dev->ops->dump_mpath(&dev->wiphy, | |
1316 | wdev->netdev, sta_idx, dst, | |
1317 | next_hop, &pinfo); | |
1318 | rtnl_unlock(); | |
1319 | if (err) { | |
1320 | sta_idx = 0; | |
1321 | break; | |
1322 | } | |
1323 | if (nl80211_send_mpath(skb, | |
1324 | NETLINK_CB(cb->skb).pid, | |
1325 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1326 | wdev->netdev, dst, next_hop, | |
1327 | &pinfo) < 0) { | |
1328 | exit = 1; | |
1329 | break; | |
1330 | } | |
1331 | } | |
1332 | } | |
1333 | mutex_unlock(&dev->devlist_mtx); | |
1334 | } | |
1335 | mutex_unlock(&cfg80211_drv_mutex); | |
1336 | ||
1337 | cb->args[0] = wp_idx; | |
1338 | cb->args[1] = if_idx; | |
1339 | cb->args[2] = sta_idx; | |
1340 | ||
1341 | return skb->len; | |
1342 | } | |
1343 | ||
1344 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1345 | { | |
1346 | struct cfg80211_registered_device *drv; | |
1347 | int err; | |
1348 | struct net_device *dev; | |
1349 | struct mpath_info pinfo; | |
1350 | struct sk_buff *msg; | |
1351 | u8 *dst = NULL; | |
1352 | u8 next_hop[ETH_ALEN]; | |
1353 | ||
1354 | memset(&pinfo, 0, sizeof(pinfo)); | |
1355 | ||
1356 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1357 | return -EINVAL; | |
1358 | ||
1359 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1360 | ||
1361 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1362 | if (err) | |
1363 | return err; | |
1364 | ||
1365 | if (!drv->ops->get_mpath) { | |
1366 | err = -EOPNOTSUPP; | |
1367 | goto out; | |
1368 | } | |
1369 | ||
1370 | rtnl_lock(); | |
1371 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); | |
1372 | rtnl_unlock(); | |
1373 | ||
1374 | if (err) | |
1375 | goto out; | |
1376 | ||
1377 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1378 | if (!msg) | |
1379 | goto out; | |
1380 | ||
1381 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1382 | dev, dst, next_hop, &pinfo) < 0) | |
1383 | goto out_free; | |
1384 | ||
1385 | err = genlmsg_unicast(msg, info->snd_pid); | |
1386 | goto out; | |
1387 | ||
1388 | out_free: | |
1389 | nlmsg_free(msg); | |
1390 | ||
1391 | out: | |
1392 | cfg80211_put_dev(drv); | |
1393 | dev_put(dev); | |
1394 | return err; | |
1395 | } | |
1396 | ||
1397 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1398 | { | |
1399 | struct cfg80211_registered_device *drv; | |
1400 | int err; | |
1401 | struct net_device *dev; | |
1402 | u8 *dst = NULL; | |
1403 | u8 *next_hop = NULL; | |
1404 | ||
1405 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1406 | return -EINVAL; | |
1407 | ||
1408 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1409 | return -EINVAL; | |
1410 | ||
1411 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1412 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1413 | ||
1414 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1415 | if (err) | |
1416 | return err; | |
1417 | ||
1418 | if (!drv->ops->change_mpath) { | |
1419 | err = -EOPNOTSUPP; | |
1420 | goto out; | |
1421 | } | |
1422 | ||
1423 | rtnl_lock(); | |
1424 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); | |
1425 | rtnl_unlock(); | |
1426 | ||
1427 | out: | |
1428 | cfg80211_put_dev(drv); | |
1429 | dev_put(dev); | |
1430 | return err; | |
1431 | } | |
1432 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1433 | { | |
1434 | struct cfg80211_registered_device *drv; | |
1435 | int err; | |
1436 | struct net_device *dev; | |
1437 | u8 *dst = NULL; | |
1438 | u8 *next_hop = NULL; | |
1439 | ||
1440 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1441 | return -EINVAL; | |
1442 | ||
1443 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1444 | return -EINVAL; | |
1445 | ||
1446 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1447 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1448 | ||
1449 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1450 | if (err) | |
1451 | return err; | |
1452 | ||
1453 | if (!drv->ops->add_mpath) { | |
1454 | err = -EOPNOTSUPP; | |
1455 | goto out; | |
1456 | } | |
1457 | ||
1458 | rtnl_lock(); | |
1459 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); | |
1460 | rtnl_unlock(); | |
1461 | ||
1462 | out: | |
1463 | cfg80211_put_dev(drv); | |
1464 | dev_put(dev); | |
1465 | return err; | |
1466 | } | |
1467 | ||
1468 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1469 | { | |
1470 | struct cfg80211_registered_device *drv; | |
1471 | int err; | |
1472 | struct net_device *dev; | |
1473 | u8 *dst = NULL; | |
1474 | ||
1475 | if (info->attrs[NL80211_ATTR_MAC]) | |
1476 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1477 | ||
1478 | err = get_drv_dev_by_info_ifindex(info, &drv, &dev); | |
1479 | if (err) | |
1480 | return err; | |
1481 | ||
1482 | if (!drv->ops->del_mpath) { | |
1483 | err = -EOPNOTSUPP; | |
1484 | goto out; | |
1485 | } | |
1486 | ||
1487 | rtnl_lock(); | |
1488 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); | |
1489 | rtnl_unlock(); | |
1490 | ||
1491 | out: | |
1492 | cfg80211_put_dev(drv); | |
1493 | dev_put(dev); | |
1494 | return err; | |
1495 | } | |
1496 | ||
55682965 JB |
1497 | static struct genl_ops nl80211_ops[] = { |
1498 | { | |
1499 | .cmd = NL80211_CMD_GET_WIPHY, | |
1500 | .doit = nl80211_get_wiphy, | |
1501 | .dumpit = nl80211_dump_wiphy, | |
1502 | .policy = nl80211_policy, | |
1503 | /* can be retrieved by unprivileged users */ | |
1504 | }, | |
1505 | { | |
1506 | .cmd = NL80211_CMD_SET_WIPHY, | |
1507 | .doit = nl80211_set_wiphy, | |
1508 | .policy = nl80211_policy, | |
1509 | .flags = GENL_ADMIN_PERM, | |
1510 | }, | |
1511 | { | |
1512 | .cmd = NL80211_CMD_GET_INTERFACE, | |
1513 | .doit = nl80211_get_interface, | |
1514 | .dumpit = nl80211_dump_interface, | |
1515 | .policy = nl80211_policy, | |
1516 | /* can be retrieved by unprivileged users */ | |
1517 | }, | |
1518 | { | |
1519 | .cmd = NL80211_CMD_SET_INTERFACE, | |
1520 | .doit = nl80211_set_interface, | |
1521 | .policy = nl80211_policy, | |
1522 | .flags = GENL_ADMIN_PERM, | |
1523 | }, | |
1524 | { | |
1525 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
1526 | .doit = nl80211_new_interface, | |
1527 | .policy = nl80211_policy, | |
1528 | .flags = GENL_ADMIN_PERM, | |
1529 | }, | |
1530 | { | |
1531 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
1532 | .doit = nl80211_del_interface, | |
1533 | .policy = nl80211_policy, | |
41ade00f JB |
1534 | .flags = GENL_ADMIN_PERM, |
1535 | }, | |
1536 | { | |
1537 | .cmd = NL80211_CMD_GET_KEY, | |
1538 | .doit = nl80211_get_key, | |
1539 | .policy = nl80211_policy, | |
1540 | .flags = GENL_ADMIN_PERM, | |
1541 | }, | |
1542 | { | |
1543 | .cmd = NL80211_CMD_SET_KEY, | |
1544 | .doit = nl80211_set_key, | |
1545 | .policy = nl80211_policy, | |
1546 | .flags = GENL_ADMIN_PERM, | |
1547 | }, | |
1548 | { | |
1549 | .cmd = NL80211_CMD_NEW_KEY, | |
1550 | .doit = nl80211_new_key, | |
1551 | .policy = nl80211_policy, | |
1552 | .flags = GENL_ADMIN_PERM, | |
1553 | }, | |
1554 | { | |
1555 | .cmd = NL80211_CMD_DEL_KEY, | |
1556 | .doit = nl80211_del_key, | |
1557 | .policy = nl80211_policy, | |
55682965 JB |
1558 | .flags = GENL_ADMIN_PERM, |
1559 | }, | |
ed1b6cc7 JB |
1560 | { |
1561 | .cmd = NL80211_CMD_SET_BEACON, | |
1562 | .policy = nl80211_policy, | |
1563 | .flags = GENL_ADMIN_PERM, | |
1564 | .doit = nl80211_addset_beacon, | |
1565 | }, | |
1566 | { | |
1567 | .cmd = NL80211_CMD_NEW_BEACON, | |
1568 | .policy = nl80211_policy, | |
1569 | .flags = GENL_ADMIN_PERM, | |
1570 | .doit = nl80211_addset_beacon, | |
1571 | }, | |
1572 | { | |
1573 | .cmd = NL80211_CMD_DEL_BEACON, | |
1574 | .policy = nl80211_policy, | |
1575 | .flags = GENL_ADMIN_PERM, | |
1576 | .doit = nl80211_del_beacon, | |
1577 | }, | |
5727ef1b JB |
1578 | { |
1579 | .cmd = NL80211_CMD_GET_STATION, | |
1580 | .doit = nl80211_get_station, | |
2ec600d6 | 1581 | .dumpit = nl80211_dump_station, |
5727ef1b JB |
1582 | .policy = nl80211_policy, |
1583 | .flags = GENL_ADMIN_PERM, | |
1584 | }, | |
1585 | { | |
1586 | .cmd = NL80211_CMD_SET_STATION, | |
1587 | .doit = nl80211_set_station, | |
1588 | .policy = nl80211_policy, | |
1589 | .flags = GENL_ADMIN_PERM, | |
1590 | }, | |
1591 | { | |
1592 | .cmd = NL80211_CMD_NEW_STATION, | |
1593 | .doit = nl80211_new_station, | |
1594 | .policy = nl80211_policy, | |
1595 | .flags = GENL_ADMIN_PERM, | |
1596 | }, | |
1597 | { | |
1598 | .cmd = NL80211_CMD_DEL_STATION, | |
1599 | .doit = nl80211_del_station, | |
1600 | .policy = nl80211_policy, | |
2ec600d6 LCC |
1601 | .flags = GENL_ADMIN_PERM, |
1602 | }, | |
1603 | { | |
1604 | .cmd = NL80211_CMD_GET_MPATH, | |
1605 | .doit = nl80211_get_mpath, | |
1606 | .dumpit = nl80211_dump_mpath, | |
1607 | .policy = nl80211_policy, | |
1608 | .flags = GENL_ADMIN_PERM, | |
1609 | }, | |
1610 | { | |
1611 | .cmd = NL80211_CMD_SET_MPATH, | |
1612 | .doit = nl80211_set_mpath, | |
1613 | .policy = nl80211_policy, | |
1614 | .flags = GENL_ADMIN_PERM, | |
1615 | }, | |
1616 | { | |
1617 | .cmd = NL80211_CMD_NEW_MPATH, | |
1618 | .doit = nl80211_new_mpath, | |
1619 | .policy = nl80211_policy, | |
1620 | .flags = GENL_ADMIN_PERM, | |
1621 | }, | |
1622 | { | |
1623 | .cmd = NL80211_CMD_DEL_MPATH, | |
1624 | .doit = nl80211_del_mpath, | |
1625 | .policy = nl80211_policy, | |
5727ef1b JB |
1626 | .flags = GENL_ADMIN_PERM, |
1627 | }, | |
55682965 JB |
1628 | }; |
1629 | ||
1630 | /* multicast groups */ | |
1631 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
1632 | .name = "config", | |
1633 | }; | |
1634 | ||
1635 | /* notification functions */ | |
1636 | ||
1637 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
1638 | { | |
1639 | struct sk_buff *msg; | |
1640 | ||
1641 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1642 | if (!msg) | |
1643 | return; | |
1644 | ||
1645 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
1646 | nlmsg_free(msg); | |
1647 | return; | |
1648 | } | |
1649 | ||
1650 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
1651 | } | |
1652 | ||
1653 | /* initialisation/exit functions */ | |
1654 | ||
1655 | int nl80211_init(void) | |
1656 | { | |
1657 | int err, i; | |
1658 | ||
1659 | err = genl_register_family(&nl80211_fam); | |
1660 | if (err) | |
1661 | return err; | |
1662 | ||
1663 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
1664 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
1665 | if (err) | |
1666 | goto err_out; | |
1667 | } | |
1668 | ||
1669 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
1670 | if (err) | |
1671 | goto err_out; | |
1672 | ||
1673 | return 0; | |
1674 | err_out: | |
1675 | genl_unregister_family(&nl80211_fam); | |
1676 | return err; | |
1677 | } | |
1678 | ||
1679 | void nl80211_exit(void) | |
1680 | { | |
1681 | genl_unregister_family(&nl80211_fam); | |
1682 | } |