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> | |
55682965 JB |
10 | #include <linux/list.h> |
11 | #include <linux/if_ether.h> | |
12 | #include <linux/ieee80211.h> | |
13 | #include <linux/nl80211.h> | |
14 | #include <linux/rtnetlink.h> | |
15 | #include <linux/netlink.h> | |
2a519311 | 16 | #include <linux/etherdevice.h> |
55682965 JB |
17 | #include <net/genetlink.h> |
18 | #include <net/cfg80211.h> | |
19 | #include "core.h" | |
20 | #include "nl80211.h" | |
b2e1b302 | 21 | #include "reg.h" |
55682965 JB |
22 | |
23 | /* the netlink family */ | |
24 | static struct genl_family nl80211_fam = { | |
25 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
26 | .name = "nl80211", /* have users key off the name instead */ | |
27 | .hdrsize = 0, /* no private header */ | |
28 | .version = 1, /* no particular meaning now */ | |
29 | .maxattr = NL80211_ATTR_MAX, | |
30 | }; | |
31 | ||
32 | /* internal helper: get drv and dev */ | |
bba95fef | 33 | static int get_drv_dev_by_info_ifindex(struct nlattr **attrs, |
55682965 JB |
34 | struct cfg80211_registered_device **drv, |
35 | struct net_device **dev) | |
36 | { | |
37 | int ifindex; | |
38 | ||
bba95fef | 39 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
40 | return -EINVAL; |
41 | ||
bba95fef | 42 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
55682965 JB |
43 | *dev = dev_get_by_index(&init_net, ifindex); |
44 | if (!*dev) | |
45 | return -ENODEV; | |
46 | ||
47 | *drv = cfg80211_get_dev_from_ifindex(ifindex); | |
48 | if (IS_ERR(*drv)) { | |
49 | dev_put(*dev); | |
50 | return PTR_ERR(*drv); | |
51 | } | |
52 | ||
53 | return 0; | |
54 | } | |
55 | ||
56 | /* policy for the attributes */ | |
57 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
58 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
59 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
60 | .len = BUS_ID_SIZE-1 }, | |
31888487 | 61 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 62 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 63 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
55682965 JB |
64 | |
65 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
66 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
67 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
68 | |
69 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
70 | ||
71 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, | |
72 | .len = WLAN_MAX_KEY_LEN }, | |
73 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
74 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
ed1b6cc7 JB |
76 | |
77 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
78 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
80 | .len = IEEE80211_MAX_DATA_LEN }, | |
81 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
82 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
83 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
84 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
85 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
86 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
87 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 88 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 89 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 90 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
91 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
92 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
93 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 94 | |
b2e1b302 LR |
95 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
96 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
97 | ||
9f1ba906 JM |
98 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
99 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
100 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
101 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
102 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 103 | |
93da9cc1 | 104 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
105 | ||
36aedc90 JM |
106 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
107 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
108 | |
109 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
110 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
111 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
112 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
113 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
114 | |
115 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
116 | .len = IEEE80211_MAX_SSID_LEN }, | |
117 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
118 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
55682965 JB |
119 | }; |
120 | ||
f4a11bb0 JB |
121 | /* IE validation */ |
122 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
123 | { | |
124 | const u8 *pos; | |
125 | int len; | |
126 | ||
127 | if (!attr) | |
128 | return true; | |
129 | ||
130 | pos = nla_data(attr); | |
131 | len = nla_len(attr); | |
132 | ||
133 | while (len) { | |
134 | u8 elemlen; | |
135 | ||
136 | if (len < 2) | |
137 | return false; | |
138 | len -= 2; | |
139 | ||
140 | elemlen = pos[1]; | |
141 | if (elemlen > len) | |
142 | return false; | |
143 | ||
144 | len -= elemlen; | |
145 | pos += 2 + elemlen; | |
146 | } | |
147 | ||
148 | return true; | |
149 | } | |
150 | ||
55682965 JB |
151 | /* message building helper */ |
152 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
153 | int flags, u8 cmd) | |
154 | { | |
155 | /* since there is no private header just add the generic one */ | |
156 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
157 | } | |
158 | ||
159 | /* netlink command implementations */ | |
160 | ||
161 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
162 | struct cfg80211_registered_device *dev) | |
163 | { | |
164 | void *hdr; | |
ee688b00 JB |
165 | struct nlattr *nl_bands, *nl_band; |
166 | struct nlattr *nl_freqs, *nl_freq; | |
167 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 168 | struct nlattr *nl_modes; |
8fdc621d | 169 | struct nlattr *nl_cmds; |
ee688b00 JB |
170 | enum ieee80211_band band; |
171 | struct ieee80211_channel *chan; | |
172 | struct ieee80211_rate *rate; | |
173 | int i; | |
f59ac048 | 174 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
175 | |
176 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
177 | if (!hdr) | |
178 | return -1; | |
179 | ||
b5850a7a | 180 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 181 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
2a519311 JB |
182 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
183 | dev->wiphy.max_scan_ssids); | |
ee688b00 | 184 | |
f59ac048 LR |
185 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
186 | if (!nl_modes) | |
187 | goto nla_put_failure; | |
188 | ||
189 | i = 0; | |
190 | while (ifmodes) { | |
191 | if (ifmodes & 1) | |
192 | NLA_PUT_FLAG(msg, i); | |
193 | ifmodes >>= 1; | |
194 | i++; | |
195 | } | |
196 | ||
197 | nla_nest_end(msg, nl_modes); | |
198 | ||
ee688b00 JB |
199 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
200 | if (!nl_bands) | |
201 | goto nla_put_failure; | |
202 | ||
203 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
204 | if (!dev->wiphy.bands[band]) | |
205 | continue; | |
206 | ||
207 | nl_band = nla_nest_start(msg, band); | |
208 | if (!nl_band) | |
209 | goto nla_put_failure; | |
210 | ||
d51626df JB |
211 | /* add HT info */ |
212 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
213 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
214 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
215 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
216 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
217 | dev->wiphy.bands[band]->ht_cap.cap); | |
218 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
219 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
220 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
221 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
222 | } | |
223 | ||
ee688b00 JB |
224 | /* add frequencies */ |
225 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
226 | if (!nl_freqs) | |
227 | goto nla_put_failure; | |
228 | ||
229 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
230 | nl_freq = nla_nest_start(msg, i); | |
231 | if (!nl_freq) | |
232 | goto nla_put_failure; | |
233 | ||
234 | chan = &dev->wiphy.bands[band]->channels[i]; | |
235 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
236 | chan->center_freq); | |
237 | ||
238 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
239 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
240 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
241 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
242 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
243 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
244 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
245 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
246 | ||
bf8c1ac6 JM |
247 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, |
248 | DBM_TO_MBM(chan->max_power)); | |
e2f367f2 | 249 | |
ee688b00 JB |
250 | nla_nest_end(msg, nl_freq); |
251 | } | |
252 | ||
253 | nla_nest_end(msg, nl_freqs); | |
254 | ||
255 | /* add bitrates */ | |
256 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
257 | if (!nl_rates) | |
258 | goto nla_put_failure; | |
259 | ||
260 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
261 | nl_rate = nla_nest_start(msg, i); | |
262 | if (!nl_rate) | |
263 | goto nla_put_failure; | |
264 | ||
265 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
266 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
267 | rate->bitrate); | |
268 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
269 | NLA_PUT_FLAG(msg, | |
270 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
271 | ||
272 | nla_nest_end(msg, nl_rate); | |
273 | } | |
274 | ||
275 | nla_nest_end(msg, nl_rates); | |
276 | ||
277 | nla_nest_end(msg, nl_band); | |
278 | } | |
279 | nla_nest_end(msg, nl_bands); | |
280 | ||
8fdc621d JB |
281 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
282 | if (!nl_cmds) | |
283 | goto nla_put_failure; | |
284 | ||
285 | i = 0; | |
286 | #define CMD(op, n) \ | |
287 | do { \ | |
288 | if (dev->ops->op) { \ | |
289 | i++; \ | |
290 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
291 | } \ | |
292 | } while (0) | |
293 | ||
294 | CMD(add_virtual_intf, NEW_INTERFACE); | |
295 | CMD(change_virtual_intf, SET_INTERFACE); | |
296 | CMD(add_key, NEW_KEY); | |
297 | CMD(add_beacon, NEW_BEACON); | |
298 | CMD(add_station, NEW_STATION); | |
299 | CMD(add_mpath, NEW_MPATH); | |
300 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
301 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
302 | CMD(auth, AUTHENTICATE); |
303 | CMD(assoc, ASSOCIATE); | |
304 | CMD(deauth, DEAUTHENTICATE); | |
305 | CMD(disassoc, DISASSOCIATE); | |
8fdc621d JB |
306 | |
307 | #undef CMD | |
308 | nla_nest_end(msg, nl_cmds); | |
309 | ||
55682965 JB |
310 | return genlmsg_end(msg, hdr); |
311 | ||
312 | nla_put_failure: | |
bc3ed28c TG |
313 | genlmsg_cancel(msg, hdr); |
314 | return -EMSGSIZE; | |
55682965 JB |
315 | } |
316 | ||
317 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
318 | { | |
319 | int idx = 0; | |
320 | int start = cb->args[0]; | |
321 | struct cfg80211_registered_device *dev; | |
322 | ||
a1794390 | 323 | mutex_lock(&cfg80211_mutex); |
55682965 | 324 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
b4637271 | 325 | if (++idx <= start) |
55682965 JB |
326 | continue; |
327 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
328 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
329 | dev) < 0) { |
330 | idx--; | |
55682965 | 331 | break; |
b4637271 | 332 | } |
55682965 | 333 | } |
a1794390 | 334 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
335 | |
336 | cb->args[0] = idx; | |
337 | ||
338 | return skb->len; | |
339 | } | |
340 | ||
341 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
342 | { | |
343 | struct sk_buff *msg; | |
344 | struct cfg80211_registered_device *dev; | |
345 | ||
346 | dev = cfg80211_get_dev_from_info(info); | |
347 | if (IS_ERR(dev)) | |
348 | return PTR_ERR(dev); | |
349 | ||
350 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
351 | if (!msg) | |
352 | goto out_err; | |
353 | ||
354 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
355 | goto out_free; | |
356 | ||
357 | cfg80211_put_dev(dev); | |
358 | ||
359 | return genlmsg_unicast(msg, info->snd_pid); | |
360 | ||
361 | out_free: | |
362 | nlmsg_free(msg); | |
363 | out_err: | |
364 | cfg80211_put_dev(dev); | |
365 | return -ENOBUFS; | |
366 | } | |
367 | ||
31888487 JM |
368 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
369 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
370 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
371 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
372 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
373 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
374 | }; | |
375 | ||
376 | static int parse_txq_params(struct nlattr *tb[], | |
377 | struct ieee80211_txq_params *txq_params) | |
378 | { | |
379 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
380 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
381 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
382 | return -EINVAL; | |
383 | ||
384 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
385 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
386 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
387 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
388 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
389 | ||
390 | return 0; | |
391 | } | |
392 | ||
55682965 JB |
393 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
394 | { | |
395 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
396 | int result = 0, rem_txq_params = 0; |
397 | struct nlattr *nl_txq_params; | |
55682965 | 398 | |
4bbf4d56 | 399 | rtnl_lock(); |
55682965 | 400 | |
4bbf4d56 JB |
401 | mutex_lock(&cfg80211_mutex); |
402 | ||
403 | rdev = __cfg80211_drv_from_info(info); | |
404 | if (IS_ERR(rdev)) { | |
405 | result = PTR_ERR(rdev); | |
406 | goto unlock; | |
407 | } | |
408 | ||
409 | mutex_lock(&rdev->mtx); | |
410 | ||
411 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
412 | result = cfg80211_dev_rename( |
413 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
414 | |
415 | mutex_unlock(&cfg80211_mutex); | |
416 | ||
417 | if (result) | |
418 | goto bad_res; | |
31888487 JM |
419 | |
420 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
421 | struct ieee80211_txq_params txq_params; | |
422 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
423 | ||
424 | if (!rdev->ops->set_txq_params) { | |
425 | result = -EOPNOTSUPP; | |
426 | goto bad_res; | |
427 | } | |
428 | ||
429 | nla_for_each_nested(nl_txq_params, | |
430 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
431 | rem_txq_params) { | |
432 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
433 | nla_data(nl_txq_params), | |
434 | nla_len(nl_txq_params), | |
435 | txq_params_policy); | |
436 | result = parse_txq_params(tb, &txq_params); | |
437 | if (result) | |
438 | goto bad_res; | |
439 | ||
440 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
441 | &txq_params); | |
442 | if (result) | |
443 | goto bad_res; | |
444 | } | |
445 | } | |
55682965 | 446 | |
72bdcf34 | 447 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 448 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 449 | struct ieee80211_channel *chan; |
306d6112 | 450 | struct ieee80211_sta_ht_cap *ht_cap; |
72bdcf34 JM |
451 | u32 freq, sec_freq; |
452 | ||
453 | if (!rdev->ops->set_channel) { | |
454 | result = -EOPNOTSUPP; | |
455 | goto bad_res; | |
456 | } | |
457 | ||
306d6112 JB |
458 | result = -EINVAL; |
459 | ||
094d05dc S |
460 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
461 | channel_type = nla_get_u32(info->attrs[ | |
462 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
463 | if (channel_type != NL80211_CHAN_NO_HT && | |
464 | channel_type != NL80211_CHAN_HT20 && | |
465 | channel_type != NL80211_CHAN_HT40PLUS && | |
466 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 467 | goto bad_res; |
72bdcf34 JM |
468 | } |
469 | ||
470 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
471 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
472 | |
473 | /* Primary channel not allowed */ | |
474 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 475 | goto bad_res; |
306d6112 | 476 | |
094d05dc | 477 | if (channel_type == NL80211_CHAN_HT40MINUS) |
72bdcf34 | 478 | sec_freq = freq - 20; |
094d05dc | 479 | else if (channel_type == NL80211_CHAN_HT40PLUS) |
72bdcf34 JM |
480 | sec_freq = freq + 20; |
481 | else | |
482 | sec_freq = 0; | |
483 | ||
306d6112 JB |
484 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
485 | ||
486 | /* no HT capabilities */ | |
094d05dc | 487 | if (channel_type != NL80211_CHAN_NO_HT && |
306d6112 JB |
488 | !ht_cap->ht_supported) |
489 | goto bad_res; | |
490 | ||
72bdcf34 JM |
491 | if (sec_freq) { |
492 | struct ieee80211_channel *schan; | |
306d6112 JB |
493 | |
494 | /* no 40 MHz capabilities */ | |
495 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || | |
496 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
497 | goto bad_res; | |
498 | ||
72bdcf34 | 499 | schan = ieee80211_get_channel(&rdev->wiphy, sec_freq); |
306d6112 JB |
500 | |
501 | /* Secondary channel not allowed */ | |
502 | if (!schan || schan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 503 | goto bad_res; |
72bdcf34 JM |
504 | } |
505 | ||
506 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 507 | channel_type); |
72bdcf34 JM |
508 | if (result) |
509 | goto bad_res; | |
510 | } | |
511 | ||
512 | ||
306d6112 | 513 | bad_res: |
4bbf4d56 JB |
514 | mutex_unlock(&rdev->mtx); |
515 | unlock: | |
516 | rtnl_unlock(); | |
55682965 JB |
517 | return result; |
518 | } | |
519 | ||
520 | ||
521 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
522 | struct net_device *dev) | |
523 | { | |
524 | void *hdr; | |
525 | ||
526 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
527 | if (!hdr) | |
528 | return -1; | |
529 | ||
530 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
531 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); | |
60719ffd | 532 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
533 | return genlmsg_end(msg, hdr); |
534 | ||
535 | nla_put_failure: | |
bc3ed28c TG |
536 | genlmsg_cancel(msg, hdr); |
537 | return -EMSGSIZE; | |
55682965 JB |
538 | } |
539 | ||
540 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
541 | { | |
542 | int wp_idx = 0; | |
543 | int if_idx = 0; | |
544 | int wp_start = cb->args[0]; | |
545 | int if_start = cb->args[1]; | |
546 | struct cfg80211_registered_device *dev; | |
547 | struct wireless_dev *wdev; | |
548 | ||
a1794390 | 549 | mutex_lock(&cfg80211_mutex); |
55682965 | 550 | list_for_each_entry(dev, &cfg80211_drv_list, list) { |
bba95fef JB |
551 | if (wp_idx < wp_start) { |
552 | wp_idx++; | |
55682965 | 553 | continue; |
bba95fef | 554 | } |
55682965 JB |
555 | if_idx = 0; |
556 | ||
557 | mutex_lock(&dev->devlist_mtx); | |
558 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
559 | if (if_idx < if_start) { |
560 | if_idx++; | |
55682965 | 561 | continue; |
bba95fef | 562 | } |
55682965 JB |
563 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
564 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
bba95fef JB |
565 | wdev->netdev) < 0) { |
566 | mutex_unlock(&dev->devlist_mtx); | |
567 | goto out; | |
568 | } | |
569 | if_idx++; | |
55682965 JB |
570 | } |
571 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
572 | |
573 | wp_idx++; | |
55682965 | 574 | } |
bba95fef | 575 | out: |
a1794390 | 576 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
577 | |
578 | cb->args[0] = wp_idx; | |
579 | cb->args[1] = if_idx; | |
580 | ||
581 | return skb->len; | |
582 | } | |
583 | ||
584 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
585 | { | |
586 | struct sk_buff *msg; | |
587 | struct cfg80211_registered_device *dev; | |
588 | struct net_device *netdev; | |
589 | int err; | |
590 | ||
bba95fef | 591 | err = get_drv_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
592 | if (err) |
593 | return err; | |
594 | ||
595 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
596 | if (!msg) | |
597 | goto out_err; | |
598 | ||
599 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0) | |
600 | goto out_free; | |
601 | ||
602 | dev_put(netdev); | |
603 | cfg80211_put_dev(dev); | |
604 | ||
605 | return genlmsg_unicast(msg, info->snd_pid); | |
606 | ||
607 | out_free: | |
608 | nlmsg_free(msg); | |
609 | out_err: | |
610 | dev_put(netdev); | |
611 | cfg80211_put_dev(dev); | |
612 | return -ENOBUFS; | |
613 | } | |
614 | ||
66f7ac50 MW |
615 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
616 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
617 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
618 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
619 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
620 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
621 | }; | |
622 | ||
623 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
624 | { | |
625 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
626 | int flag; | |
627 | ||
628 | *mntrflags = 0; | |
629 | ||
630 | if (!nla) | |
631 | return -EINVAL; | |
632 | ||
633 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
634 | nla, mntr_flags_policy)) | |
635 | return -EINVAL; | |
636 | ||
637 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
638 | if (flags[flag]) | |
639 | *mntrflags |= (1<<flag); | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
55682965 JB |
644 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
645 | { | |
646 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 647 | struct vif_params params; |
55682965 JB |
648 | int err, ifindex; |
649 | enum nl80211_iftype type; | |
650 | struct net_device *dev; | |
92ffe055 | 651 | u32 _flags, *flags = NULL; |
ac7f9cfa | 652 | bool change = false; |
55682965 | 653 | |
2ec600d6 LCC |
654 | memset(¶ms, 0, sizeof(params)); |
655 | ||
3b85875a JB |
656 | rtnl_lock(); |
657 | ||
bba95fef | 658 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 659 | if (err) |
3b85875a JB |
660 | goto unlock_rtnl; |
661 | ||
55682965 | 662 | ifindex = dev->ifindex; |
723b038d | 663 | type = dev->ieee80211_ptr->iftype; |
55682965 JB |
664 | dev_put(dev); |
665 | ||
723b038d | 666 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa JB |
667 | enum nl80211_iftype ntype; |
668 | ||
669 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
670 | if (type != ntype) | |
671 | change = true; | |
672 | type = ntype; | |
673 | if (type > NL80211_IFTYPE_MAX) { | |
674 | err = -EINVAL; | |
723b038d | 675 | goto unlock; |
ac7f9cfa | 676 | } |
723b038d JB |
677 | } |
678 | ||
f59ac048 LR |
679 | if (!drv->ops->change_virtual_intf || |
680 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
681 | err = -EOPNOTSUPP; |
682 | goto unlock; | |
683 | } | |
684 | ||
92ffe055 JB |
685 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
686 | if (type != NL80211_IFTYPE_MESH_POINT) { | |
687 | err = -EINVAL; | |
688 | goto unlock; | |
689 | } | |
2ec600d6 LCC |
690 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
691 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 692 | change = true; |
2ec600d6 LCC |
693 | } |
694 | ||
92ffe055 JB |
695 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
696 | if (type != NL80211_IFTYPE_MONITOR) { | |
697 | err = -EINVAL; | |
698 | goto unlock; | |
699 | } | |
700 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
701 | &_flags); | |
ac7f9cfa JB |
702 | if (err) |
703 | goto unlock; | |
704 | ||
705 | flags = &_flags; | |
706 | change = true; | |
92ffe055 | 707 | } |
3b85875a | 708 | |
ac7f9cfa JB |
709 | if (change) |
710 | err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, | |
711 | type, flags, ¶ms); | |
712 | else | |
713 | err = 0; | |
60719ffd JB |
714 | |
715 | dev = __dev_get_by_index(&init_net, ifindex); | |
716 | WARN_ON(!dev || (!err && dev->ieee80211_ptr->iftype != type)); | |
717 | ||
55682965 JB |
718 | unlock: |
719 | cfg80211_put_dev(drv); | |
3b85875a JB |
720 | unlock_rtnl: |
721 | rtnl_unlock(); | |
55682965 JB |
722 | return err; |
723 | } | |
724 | ||
725 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
726 | { | |
727 | struct cfg80211_registered_device *drv; | |
2ec600d6 | 728 | struct vif_params params; |
55682965 JB |
729 | int err; |
730 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 731 | u32 flags; |
55682965 | 732 | |
2ec600d6 LCC |
733 | memset(¶ms, 0, sizeof(params)); |
734 | ||
55682965 JB |
735 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
736 | return -EINVAL; | |
737 | ||
738 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
739 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
740 | if (type > NL80211_IFTYPE_MAX) | |
741 | return -EINVAL; | |
742 | } | |
743 | ||
3b85875a JB |
744 | rtnl_lock(); |
745 | ||
55682965 | 746 | drv = cfg80211_get_dev_from_info(info); |
3b85875a JB |
747 | if (IS_ERR(drv)) { |
748 | err = PTR_ERR(drv); | |
749 | goto unlock_rtnl; | |
750 | } | |
55682965 | 751 | |
f59ac048 LR |
752 | if (!drv->ops->add_virtual_intf || |
753 | !(drv->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
754 | err = -EOPNOTSUPP; |
755 | goto unlock; | |
756 | } | |
757 | ||
2ec600d6 LCC |
758 | if (type == NL80211_IFTYPE_MESH_POINT && |
759 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
760 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
761 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
762 | } | |
763 | ||
66f7ac50 MW |
764 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
765 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
766 | &flags); | |
55682965 | 767 | err = drv->ops->add_virtual_intf(&drv->wiphy, |
66f7ac50 | 768 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 769 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 770 | |
55682965 JB |
771 | unlock: |
772 | cfg80211_put_dev(drv); | |
3b85875a JB |
773 | unlock_rtnl: |
774 | rtnl_unlock(); | |
55682965 JB |
775 | return err; |
776 | } | |
777 | ||
778 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
779 | { | |
780 | struct cfg80211_registered_device *drv; | |
781 | int ifindex, err; | |
782 | struct net_device *dev; | |
783 | ||
3b85875a JB |
784 | rtnl_lock(); |
785 | ||
bba95fef | 786 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
55682965 | 787 | if (err) |
3b85875a | 788 | goto unlock_rtnl; |
55682965 JB |
789 | ifindex = dev->ifindex; |
790 | dev_put(dev); | |
791 | ||
792 | if (!drv->ops->del_virtual_intf) { | |
793 | err = -EOPNOTSUPP; | |
794 | goto out; | |
795 | } | |
796 | ||
55682965 | 797 | err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex); |
55682965 JB |
798 | |
799 | out: | |
800 | cfg80211_put_dev(drv); | |
3b85875a JB |
801 | unlock_rtnl: |
802 | rtnl_unlock(); | |
55682965 JB |
803 | return err; |
804 | } | |
805 | ||
41ade00f JB |
806 | struct get_key_cookie { |
807 | struct sk_buff *msg; | |
808 | int error; | |
809 | }; | |
810 | ||
811 | static void get_key_callback(void *c, struct key_params *params) | |
812 | { | |
813 | struct get_key_cookie *cookie = c; | |
814 | ||
815 | if (params->key) | |
816 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
817 | params->key_len, params->key); | |
818 | ||
819 | if (params->seq) | |
820 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
821 | params->seq_len, params->seq); | |
822 | ||
823 | if (params->cipher) | |
824 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
825 | params->cipher); | |
826 | ||
827 | return; | |
828 | nla_put_failure: | |
829 | cookie->error = 1; | |
830 | } | |
831 | ||
832 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
833 | { | |
834 | struct cfg80211_registered_device *drv; | |
835 | int err; | |
836 | struct net_device *dev; | |
837 | u8 key_idx = 0; | |
838 | u8 *mac_addr = NULL; | |
839 | struct get_key_cookie cookie = { | |
840 | .error = 0, | |
841 | }; | |
842 | void *hdr; | |
843 | struct sk_buff *msg; | |
844 | ||
845 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
846 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
847 | ||
3cfcf6ac | 848 | if (key_idx > 5) |
41ade00f JB |
849 | return -EINVAL; |
850 | ||
851 | if (info->attrs[NL80211_ATTR_MAC]) | |
852 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
853 | ||
3b85875a JB |
854 | rtnl_lock(); |
855 | ||
bba95fef | 856 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 857 | if (err) |
3b85875a | 858 | goto unlock_rtnl; |
41ade00f JB |
859 | |
860 | if (!drv->ops->get_key) { | |
861 | err = -EOPNOTSUPP; | |
862 | goto out; | |
863 | } | |
864 | ||
865 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
866 | if (!msg) { | |
867 | err = -ENOMEM; | |
868 | goto out; | |
869 | } | |
870 | ||
871 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
872 | NL80211_CMD_NEW_KEY); | |
873 | ||
874 | if (IS_ERR(hdr)) { | |
875 | err = PTR_ERR(hdr); | |
876 | goto out; | |
877 | } | |
878 | ||
879 | cookie.msg = msg; | |
880 | ||
881 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
882 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
883 | if (mac_addr) | |
884 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
885 | ||
41ade00f JB |
886 | err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr, |
887 | &cookie, get_key_callback); | |
41ade00f JB |
888 | |
889 | if (err) | |
890 | goto out; | |
891 | ||
892 | if (cookie.error) | |
893 | goto nla_put_failure; | |
894 | ||
895 | genlmsg_end(msg, hdr); | |
896 | err = genlmsg_unicast(msg, info->snd_pid); | |
897 | goto out; | |
898 | ||
899 | nla_put_failure: | |
900 | err = -ENOBUFS; | |
901 | nlmsg_free(msg); | |
902 | out: | |
903 | cfg80211_put_dev(drv); | |
904 | dev_put(dev); | |
3b85875a JB |
905 | unlock_rtnl: |
906 | rtnl_unlock(); | |
907 | ||
41ade00f JB |
908 | return err; |
909 | } | |
910 | ||
911 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
912 | { | |
913 | struct cfg80211_registered_device *drv; | |
914 | int err; | |
915 | struct net_device *dev; | |
916 | u8 key_idx; | |
3cfcf6ac JM |
917 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
918 | u8 key_index); | |
41ade00f JB |
919 | |
920 | if (!info->attrs[NL80211_ATTR_KEY_IDX]) | |
921 | return -EINVAL; | |
922 | ||
923 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
924 | ||
3cfcf6ac JM |
925 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) { |
926 | if (key_idx < 4 || key_idx > 5) | |
927 | return -EINVAL; | |
928 | } else if (key_idx > 3) | |
41ade00f JB |
929 | return -EINVAL; |
930 | ||
931 | /* currently only support setting default key */ | |
3cfcf6ac JM |
932 | if (!info->attrs[NL80211_ATTR_KEY_DEFAULT] && |
933 | !info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]) | |
41ade00f JB |
934 | return -EINVAL; |
935 | ||
3b85875a JB |
936 | rtnl_lock(); |
937 | ||
bba95fef | 938 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 939 | if (err) |
3b85875a | 940 | goto unlock_rtnl; |
41ade00f | 941 | |
3cfcf6ac JM |
942 | if (info->attrs[NL80211_ATTR_KEY_DEFAULT]) |
943 | func = drv->ops->set_default_key; | |
944 | else | |
945 | func = drv->ops->set_default_mgmt_key; | |
946 | ||
947 | if (!func) { | |
41ade00f JB |
948 | err = -EOPNOTSUPP; |
949 | goto out; | |
950 | } | |
951 | ||
3cfcf6ac | 952 | err = func(&drv->wiphy, dev, key_idx); |
41ade00f JB |
953 | |
954 | out: | |
955 | cfg80211_put_dev(drv); | |
956 | dev_put(dev); | |
3b85875a JB |
957 | |
958 | unlock_rtnl: | |
959 | rtnl_unlock(); | |
960 | ||
41ade00f JB |
961 | return err; |
962 | } | |
963 | ||
964 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
965 | { | |
966 | struct cfg80211_registered_device *drv; | |
967 | int err; | |
968 | struct net_device *dev; | |
969 | struct key_params params; | |
970 | u8 key_idx = 0; | |
971 | u8 *mac_addr = NULL; | |
972 | ||
973 | memset(¶ms, 0, sizeof(params)); | |
974 | ||
975 | if (!info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
976 | return -EINVAL; | |
977 | ||
978 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
979 | params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
980 | params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
981 | } | |
982 | ||
983 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
984 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
985 | ||
986 | params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
987 | ||
988 | if (info->attrs[NL80211_ATTR_MAC]) | |
989 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
990 | ||
3cfcf6ac | 991 | if (key_idx > 5) |
41ade00f JB |
992 | return -EINVAL; |
993 | ||
994 | /* | |
995 | * Disallow pairwise keys with non-zero index unless it's WEP | |
996 | * (because current deployments use pairwise WEP keys with | |
997 | * non-zero indizes but 802.11i clearly specifies to use zero) | |
998 | */ | |
999 | if (mac_addr && key_idx && | |
1000 | params.cipher != WLAN_CIPHER_SUITE_WEP40 && | |
1001 | params.cipher != WLAN_CIPHER_SUITE_WEP104) | |
1002 | return -EINVAL; | |
1003 | ||
1004 | /* TODO: add definitions for the lengths to linux/ieee80211.h */ | |
1005 | switch (params.cipher) { | |
1006 | case WLAN_CIPHER_SUITE_WEP40: | |
1007 | if (params.key_len != 5) | |
1008 | return -EINVAL; | |
1009 | break; | |
1010 | case WLAN_CIPHER_SUITE_TKIP: | |
1011 | if (params.key_len != 32) | |
1012 | return -EINVAL; | |
1013 | break; | |
1014 | case WLAN_CIPHER_SUITE_CCMP: | |
1015 | if (params.key_len != 16) | |
1016 | return -EINVAL; | |
1017 | break; | |
1018 | case WLAN_CIPHER_SUITE_WEP104: | |
1019 | if (params.key_len != 13) | |
1020 | return -EINVAL; | |
1021 | break; | |
3cfcf6ac JM |
1022 | case WLAN_CIPHER_SUITE_AES_CMAC: |
1023 | if (params.key_len != 16) | |
1024 | return -EINVAL; | |
1025 | break; | |
41ade00f JB |
1026 | default: |
1027 | return -EINVAL; | |
1028 | } | |
1029 | ||
3b85875a JB |
1030 | rtnl_lock(); |
1031 | ||
bba95fef | 1032 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1033 | if (err) |
3b85875a | 1034 | goto unlock_rtnl; |
41ade00f JB |
1035 | |
1036 | if (!drv->ops->add_key) { | |
1037 | err = -EOPNOTSUPP; | |
1038 | goto out; | |
1039 | } | |
1040 | ||
41ade00f | 1041 | err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms); |
41ade00f JB |
1042 | |
1043 | out: | |
1044 | cfg80211_put_dev(drv); | |
1045 | dev_put(dev); | |
3b85875a JB |
1046 | unlock_rtnl: |
1047 | rtnl_unlock(); | |
1048 | ||
41ade00f JB |
1049 | return err; |
1050 | } | |
1051 | ||
1052 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1053 | { | |
1054 | struct cfg80211_registered_device *drv; | |
1055 | int err; | |
1056 | struct net_device *dev; | |
1057 | u8 key_idx = 0; | |
1058 | u8 *mac_addr = NULL; | |
1059 | ||
1060 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1061 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1062 | ||
3cfcf6ac | 1063 | if (key_idx > 5) |
41ade00f JB |
1064 | return -EINVAL; |
1065 | ||
1066 | if (info->attrs[NL80211_ATTR_MAC]) | |
1067 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1068 | ||
3b85875a JB |
1069 | rtnl_lock(); |
1070 | ||
bba95fef | 1071 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
41ade00f | 1072 | if (err) |
3b85875a | 1073 | goto unlock_rtnl; |
41ade00f JB |
1074 | |
1075 | if (!drv->ops->del_key) { | |
1076 | err = -EOPNOTSUPP; | |
1077 | goto out; | |
1078 | } | |
1079 | ||
41ade00f | 1080 | err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); |
41ade00f JB |
1081 | |
1082 | out: | |
1083 | cfg80211_put_dev(drv); | |
1084 | dev_put(dev); | |
3b85875a JB |
1085 | |
1086 | unlock_rtnl: | |
1087 | rtnl_unlock(); | |
1088 | ||
41ade00f JB |
1089 | return err; |
1090 | } | |
1091 | ||
ed1b6cc7 JB |
1092 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1093 | { | |
1094 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1095 | struct beacon_parameters *info); | |
1096 | struct cfg80211_registered_device *drv; | |
1097 | int err; | |
1098 | struct net_device *dev; | |
1099 | struct beacon_parameters params; | |
1100 | int haveinfo = 0; | |
1101 | ||
f4a11bb0 JB |
1102 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1103 | return -EINVAL; | |
1104 | ||
3b85875a JB |
1105 | rtnl_lock(); |
1106 | ||
bba95fef | 1107 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1108 | if (err) |
3b85875a | 1109 | goto unlock_rtnl; |
ed1b6cc7 | 1110 | |
eec60b03 JM |
1111 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1112 | err = -EOPNOTSUPP; | |
1113 | goto out; | |
1114 | } | |
1115 | ||
ed1b6cc7 JB |
1116 | switch (info->genlhdr->cmd) { |
1117 | case NL80211_CMD_NEW_BEACON: | |
1118 | /* these are required for NEW_BEACON */ | |
1119 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1120 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1121 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1122 | err = -EINVAL; | |
1123 | goto out; | |
1124 | } | |
1125 | ||
1126 | call = drv->ops->add_beacon; | |
1127 | break; | |
1128 | case NL80211_CMD_SET_BEACON: | |
1129 | call = drv->ops->set_beacon; | |
1130 | break; | |
1131 | default: | |
1132 | WARN_ON(1); | |
1133 | err = -EOPNOTSUPP; | |
1134 | goto out; | |
1135 | } | |
1136 | ||
1137 | if (!call) { | |
1138 | err = -EOPNOTSUPP; | |
1139 | goto out; | |
1140 | } | |
1141 | ||
1142 | memset(¶ms, 0, sizeof(params)); | |
1143 | ||
1144 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1145 | params.interval = | |
1146 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1147 | haveinfo = 1; | |
1148 | } | |
1149 | ||
1150 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1151 | params.dtim_period = | |
1152 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1153 | haveinfo = 1; | |
1154 | } | |
1155 | ||
1156 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1157 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1158 | params.head_len = | |
1159 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1160 | haveinfo = 1; | |
1161 | } | |
1162 | ||
1163 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1164 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1165 | params.tail_len = | |
1166 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1167 | haveinfo = 1; | |
1168 | } | |
1169 | ||
1170 | if (!haveinfo) { | |
1171 | err = -EINVAL; | |
1172 | goto out; | |
1173 | } | |
1174 | ||
ed1b6cc7 | 1175 | err = call(&drv->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1176 | |
1177 | out: | |
1178 | cfg80211_put_dev(drv); | |
1179 | dev_put(dev); | |
3b85875a JB |
1180 | unlock_rtnl: |
1181 | rtnl_unlock(); | |
1182 | ||
ed1b6cc7 JB |
1183 | return err; |
1184 | } | |
1185 | ||
1186 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1187 | { | |
1188 | struct cfg80211_registered_device *drv; | |
1189 | int err; | |
1190 | struct net_device *dev; | |
1191 | ||
3b85875a JB |
1192 | rtnl_lock(); |
1193 | ||
bba95fef | 1194 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
ed1b6cc7 | 1195 | if (err) |
3b85875a | 1196 | goto unlock_rtnl; |
ed1b6cc7 JB |
1197 | |
1198 | if (!drv->ops->del_beacon) { | |
1199 | err = -EOPNOTSUPP; | |
1200 | goto out; | |
1201 | } | |
1202 | ||
eec60b03 JM |
1203 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1204 | err = -EOPNOTSUPP; | |
1205 | goto out; | |
1206 | } | |
ed1b6cc7 | 1207 | err = drv->ops->del_beacon(&drv->wiphy, dev); |
ed1b6cc7 JB |
1208 | |
1209 | out: | |
1210 | cfg80211_put_dev(drv); | |
1211 | dev_put(dev); | |
3b85875a JB |
1212 | unlock_rtnl: |
1213 | rtnl_unlock(); | |
1214 | ||
ed1b6cc7 JB |
1215 | return err; |
1216 | } | |
1217 | ||
5727ef1b JB |
1218 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1219 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1220 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1221 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
1222 | }; | |
1223 | ||
1224 | static int parse_station_flags(struct nlattr *nla, u32 *staflags) | |
1225 | { | |
1226 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
1227 | int flag; | |
1228 | ||
1229 | *staflags = 0; | |
1230 | ||
1231 | if (!nla) | |
1232 | return 0; | |
1233 | ||
1234 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1235 | nla, sta_flags_policy)) | |
1236 | return -EINVAL; | |
1237 | ||
1238 | *staflags = STATION_FLAG_CHANGED; | |
1239 | ||
1240 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1241 | if (flags[flag]) | |
1242 | *staflags |= (1<<flag); | |
1243 | ||
1244 | return 0; | |
1245 | } | |
1246 | ||
420e7fab HR |
1247 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1248 | { | |
1249 | int modulation, streams, bitrate; | |
1250 | ||
1251 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1252 | return rate->legacy; | |
1253 | ||
1254 | /* the formula below does only work for MCS values smaller than 32 */ | |
1255 | if (rate->mcs >= 32) | |
1256 | return 0; | |
1257 | ||
1258 | modulation = rate->mcs & 7; | |
1259 | streams = (rate->mcs >> 3) + 1; | |
1260 | ||
1261 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1262 | 13500000 : 6500000; | |
1263 | ||
1264 | if (modulation < 4) | |
1265 | bitrate *= (modulation + 1); | |
1266 | else if (modulation == 4) | |
1267 | bitrate *= (modulation + 2); | |
1268 | else | |
1269 | bitrate *= (modulation + 3); | |
1270 | ||
1271 | bitrate *= streams; | |
1272 | ||
1273 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1274 | bitrate = (bitrate / 9) * 10; | |
1275 | ||
1276 | /* do NOT round down here */ | |
1277 | return (bitrate + 50000) / 100000; | |
1278 | } | |
1279 | ||
fd5b74dc JB |
1280 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1281 | int flags, struct net_device *dev, | |
2ec600d6 | 1282 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1283 | { |
1284 | void *hdr; | |
420e7fab HR |
1285 | struct nlattr *sinfoattr, *txrate; |
1286 | u16 bitrate; | |
fd5b74dc JB |
1287 | |
1288 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1289 | if (!hdr) | |
1290 | return -1; | |
1291 | ||
1292 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1293 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1294 | ||
2ec600d6 LCC |
1295 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1296 | if (!sinfoattr) | |
fd5b74dc | 1297 | goto nla_put_failure; |
2ec600d6 LCC |
1298 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1299 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1300 | sinfo->inactive_time); | |
1301 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1302 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1303 | sinfo->rx_bytes); | |
1304 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1305 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1306 | sinfo->tx_bytes); | |
1307 | if (sinfo->filled & STATION_INFO_LLID) | |
1308 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1309 | sinfo->llid); | |
1310 | if (sinfo->filled & STATION_INFO_PLID) | |
1311 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1312 | sinfo->plid); | |
1313 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1314 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1315 | sinfo->plink_state); | |
420e7fab HR |
1316 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1317 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1318 | sinfo->signal); | |
1319 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1320 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1321 | if (!txrate) | |
1322 | goto nla_put_failure; | |
1323 | ||
1324 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1325 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1326 | if (bitrate > 0) | |
1327 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1328 | |
420e7fab HR |
1329 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1330 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1331 | sinfo->txrate.mcs); | |
1332 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1333 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1334 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1335 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1336 | ||
1337 | nla_nest_end(msg, txrate); | |
1338 | } | |
98c8a60a JM |
1339 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1340 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1341 | sinfo->rx_packets); | |
1342 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1343 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1344 | sinfo->tx_packets); | |
2ec600d6 | 1345 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1346 | |
1347 | return genlmsg_end(msg, hdr); | |
1348 | ||
1349 | nla_put_failure: | |
bc3ed28c TG |
1350 | genlmsg_cancel(msg, hdr); |
1351 | return -EMSGSIZE; | |
fd5b74dc JB |
1352 | } |
1353 | ||
2ec600d6 | 1354 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1355 | struct netlink_callback *cb) |
2ec600d6 | 1356 | { |
2ec600d6 LCC |
1357 | struct station_info sinfo; |
1358 | struct cfg80211_registered_device *dev; | |
bba95fef | 1359 | struct net_device *netdev; |
2ec600d6 | 1360 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1361 | int ifidx = cb->args[0]; |
1362 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1363 | int err; |
2ec600d6 | 1364 | |
bba95fef JB |
1365 | if (!ifidx) { |
1366 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1367 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1368 | nl80211_policy); | |
1369 | if (err) | |
1370 | return err; | |
2ec600d6 | 1371 | |
bba95fef JB |
1372 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1373 | return -EINVAL; | |
2ec600d6 | 1374 | |
bba95fef JB |
1375 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1376 | if (!ifidx) | |
1377 | return -EINVAL; | |
2ec600d6 | 1378 | } |
2ec600d6 | 1379 | |
3b85875a JB |
1380 | rtnl_lock(); |
1381 | ||
1382 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1383 | if (!netdev) { | |
1384 | err = -ENODEV; | |
1385 | goto out_rtnl; | |
1386 | } | |
2ec600d6 | 1387 | |
bba95fef JB |
1388 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1389 | if (IS_ERR(dev)) { | |
1390 | err = PTR_ERR(dev); | |
3b85875a | 1391 | goto out_rtnl; |
bba95fef JB |
1392 | } |
1393 | ||
1394 | if (!dev->ops->dump_station) { | |
eec60b03 | 1395 | err = -EOPNOTSUPP; |
bba95fef JB |
1396 | goto out_err; |
1397 | } | |
1398 | ||
bba95fef JB |
1399 | while (1) { |
1400 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1401 | mac_addr, &sinfo); | |
1402 | if (err == -ENOENT) | |
1403 | break; | |
1404 | if (err) | |
3b85875a | 1405 | goto out_err; |
bba95fef JB |
1406 | |
1407 | if (nl80211_send_station(skb, | |
1408 | NETLINK_CB(cb->skb).pid, | |
1409 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1410 | netdev, mac_addr, | |
1411 | &sinfo) < 0) | |
1412 | goto out; | |
1413 | ||
1414 | sta_idx++; | |
1415 | } | |
1416 | ||
1417 | ||
1418 | out: | |
1419 | cb->args[1] = sta_idx; | |
1420 | err = skb->len; | |
bba95fef JB |
1421 | out_err: |
1422 | cfg80211_put_dev(dev); | |
3b85875a JB |
1423 | out_rtnl: |
1424 | rtnl_unlock(); | |
bba95fef JB |
1425 | |
1426 | return err; | |
2ec600d6 | 1427 | } |
fd5b74dc | 1428 | |
5727ef1b JB |
1429 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1430 | { | |
fd5b74dc JB |
1431 | struct cfg80211_registered_device *drv; |
1432 | int err; | |
1433 | struct net_device *dev; | |
2ec600d6 | 1434 | struct station_info sinfo; |
fd5b74dc JB |
1435 | struct sk_buff *msg; |
1436 | u8 *mac_addr = NULL; | |
1437 | ||
2ec600d6 | 1438 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1439 | |
1440 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1441 | return -EINVAL; | |
1442 | ||
1443 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1444 | ||
3b85875a JB |
1445 | rtnl_lock(); |
1446 | ||
bba95fef | 1447 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
fd5b74dc | 1448 | if (err) |
3b85875a | 1449 | goto out_rtnl; |
fd5b74dc JB |
1450 | |
1451 | if (!drv->ops->get_station) { | |
1452 | err = -EOPNOTSUPP; | |
1453 | goto out; | |
1454 | } | |
1455 | ||
2ec600d6 | 1456 | err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1457 | if (err) |
1458 | goto out; | |
1459 | ||
fd5b74dc JB |
1460 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
1461 | if (!msg) | |
1462 | goto out; | |
1463 | ||
1464 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1465 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1466 | goto out_free; |
1467 | ||
1468 | err = genlmsg_unicast(msg, info->snd_pid); | |
1469 | goto out; | |
1470 | ||
1471 | out_free: | |
1472 | nlmsg_free(msg); | |
fd5b74dc JB |
1473 | out: |
1474 | cfg80211_put_dev(drv); | |
1475 | dev_put(dev); | |
3b85875a JB |
1476 | out_rtnl: |
1477 | rtnl_unlock(); | |
1478 | ||
fd5b74dc | 1479 | return err; |
5727ef1b JB |
1480 | } |
1481 | ||
1482 | /* | |
1483 | * Get vlan interface making sure it is on the right wiphy. | |
1484 | */ | |
1485 | static int get_vlan(struct nlattr *vlanattr, | |
1486 | struct cfg80211_registered_device *rdev, | |
1487 | struct net_device **vlan) | |
1488 | { | |
1489 | *vlan = NULL; | |
1490 | ||
1491 | if (vlanattr) { | |
1492 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1493 | if (!*vlan) | |
1494 | return -ENODEV; | |
1495 | if (!(*vlan)->ieee80211_ptr) | |
1496 | return -EINVAL; | |
1497 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1498 | return -EINVAL; | |
1499 | } | |
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1504 | { | |
1505 | struct cfg80211_registered_device *drv; | |
1506 | int err; | |
1507 | struct net_device *dev; | |
1508 | struct station_parameters params; | |
1509 | u8 *mac_addr = NULL; | |
1510 | ||
1511 | memset(¶ms, 0, sizeof(params)); | |
1512 | ||
1513 | params.listen_interval = -1; | |
1514 | ||
1515 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1516 | return -EINVAL; | |
1517 | ||
1518 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1519 | return -EINVAL; | |
1520 | ||
1521 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1522 | ||
1523 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1524 | params.supported_rates = | |
1525 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1526 | params.supported_rates_len = | |
1527 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1528 | } | |
1529 | ||
1530 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1531 | params.listen_interval = | |
1532 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1533 | ||
36aedc90 JM |
1534 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1535 | params.ht_capa = | |
1536 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1537 | ||
5727ef1b JB |
1538 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], |
1539 | ¶ms.station_flags)) | |
1540 | return -EINVAL; | |
1541 | ||
2ec600d6 LCC |
1542 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1543 | params.plink_action = | |
1544 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1545 | ||
3b85875a JB |
1546 | rtnl_lock(); |
1547 | ||
bba95fef | 1548 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1549 | if (err) |
3b85875a | 1550 | goto out_rtnl; |
5727ef1b JB |
1551 | |
1552 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1553 | if (err) | |
1554 | goto out; | |
1555 | ||
1556 | if (!drv->ops->change_station) { | |
1557 | err = -EOPNOTSUPP; | |
1558 | goto out; | |
1559 | } | |
1560 | ||
5727ef1b | 1561 | err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1562 | |
1563 | out: | |
1564 | if (params.vlan) | |
1565 | dev_put(params.vlan); | |
1566 | cfg80211_put_dev(drv); | |
1567 | dev_put(dev); | |
3b85875a JB |
1568 | out_rtnl: |
1569 | rtnl_unlock(); | |
1570 | ||
5727ef1b JB |
1571 | return err; |
1572 | } | |
1573 | ||
1574 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1575 | { | |
1576 | struct cfg80211_registered_device *drv; | |
1577 | int err; | |
1578 | struct net_device *dev; | |
1579 | struct station_parameters params; | |
1580 | u8 *mac_addr = NULL; | |
1581 | ||
1582 | memset(¶ms, 0, sizeof(params)); | |
1583 | ||
1584 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1585 | return -EINVAL; | |
1586 | ||
1587 | if (!info->attrs[NL80211_ATTR_STA_AID]) | |
1588 | return -EINVAL; | |
1589 | ||
1590 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1591 | return -EINVAL; | |
1592 | ||
1593 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1594 | return -EINVAL; | |
1595 | ||
1596 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1597 | params.supported_rates = | |
1598 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1599 | params.supported_rates_len = | |
1600 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1601 | params.listen_interval = | |
1602 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
16f2e85d | 1603 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
36aedc90 JM |
1604 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1605 | params.ht_capa = | |
1606 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b JB |
1607 | |
1608 | if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], | |
1609 | ¶ms.station_flags)) | |
1610 | return -EINVAL; | |
1611 | ||
3b85875a JB |
1612 | rtnl_lock(); |
1613 | ||
bba95fef | 1614 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1615 | if (err) |
3b85875a | 1616 | goto out_rtnl; |
5727ef1b JB |
1617 | |
1618 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); | |
1619 | if (err) | |
1620 | goto out; | |
1621 | ||
1622 | if (!drv->ops->add_station) { | |
1623 | err = -EOPNOTSUPP; | |
1624 | goto out; | |
1625 | } | |
1626 | ||
35a8efe1 JM |
1627 | if (!netif_running(dev)) { |
1628 | err = -ENETDOWN; | |
1629 | goto out; | |
1630 | } | |
1631 | ||
5727ef1b | 1632 | err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1633 | |
1634 | out: | |
1635 | if (params.vlan) | |
1636 | dev_put(params.vlan); | |
1637 | cfg80211_put_dev(drv); | |
1638 | dev_put(dev); | |
3b85875a JB |
1639 | out_rtnl: |
1640 | rtnl_unlock(); | |
1641 | ||
5727ef1b JB |
1642 | return err; |
1643 | } | |
1644 | ||
1645 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
1646 | { | |
1647 | struct cfg80211_registered_device *drv; | |
1648 | int err; | |
1649 | struct net_device *dev; | |
1650 | u8 *mac_addr = NULL; | |
1651 | ||
1652 | if (info->attrs[NL80211_ATTR_MAC]) | |
1653 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1654 | ||
3b85875a JB |
1655 | rtnl_lock(); |
1656 | ||
bba95fef | 1657 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
5727ef1b | 1658 | if (err) |
3b85875a | 1659 | goto out_rtnl; |
5727ef1b JB |
1660 | |
1661 | if (!drv->ops->del_station) { | |
1662 | err = -EOPNOTSUPP; | |
1663 | goto out; | |
1664 | } | |
1665 | ||
5727ef1b | 1666 | err = drv->ops->del_station(&drv->wiphy, dev, mac_addr); |
5727ef1b JB |
1667 | |
1668 | out: | |
1669 | cfg80211_put_dev(drv); | |
1670 | dev_put(dev); | |
3b85875a JB |
1671 | out_rtnl: |
1672 | rtnl_unlock(); | |
1673 | ||
5727ef1b JB |
1674 | return err; |
1675 | } | |
1676 | ||
2ec600d6 LCC |
1677 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
1678 | int flags, struct net_device *dev, | |
1679 | u8 *dst, u8 *next_hop, | |
1680 | struct mpath_info *pinfo) | |
1681 | { | |
1682 | void *hdr; | |
1683 | struct nlattr *pinfoattr; | |
1684 | ||
1685 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1686 | if (!hdr) | |
1687 | return -1; | |
1688 | ||
1689 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1690 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
1691 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
1692 | ||
1693 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
1694 | if (!pinfoattr) | |
1695 | goto nla_put_failure; | |
1696 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
1697 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
1698 | pinfo->frame_qlen); | |
1699 | if (pinfo->filled & MPATH_INFO_DSN) | |
1700 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
1701 | pinfo->dsn); | |
1702 | if (pinfo->filled & MPATH_INFO_METRIC) | |
1703 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
1704 | pinfo->metric); | |
1705 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
1706 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
1707 | pinfo->exptime); | |
1708 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
1709 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
1710 | pinfo->flags); | |
1711 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
1712 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
1713 | pinfo->discovery_timeout); | |
1714 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
1715 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
1716 | pinfo->discovery_retries); | |
1717 | ||
1718 | nla_nest_end(msg, pinfoattr); | |
1719 | ||
1720 | return genlmsg_end(msg, hdr); | |
1721 | ||
1722 | nla_put_failure: | |
bc3ed28c TG |
1723 | genlmsg_cancel(msg, hdr); |
1724 | return -EMSGSIZE; | |
2ec600d6 LCC |
1725 | } |
1726 | ||
1727 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 1728 | struct netlink_callback *cb) |
2ec600d6 | 1729 | { |
2ec600d6 LCC |
1730 | struct mpath_info pinfo; |
1731 | struct cfg80211_registered_device *dev; | |
bba95fef | 1732 | struct net_device *netdev; |
2ec600d6 LCC |
1733 | u8 dst[ETH_ALEN]; |
1734 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
1735 | int ifidx = cb->args[0]; |
1736 | int path_idx = cb->args[1]; | |
2ec600d6 | 1737 | int err; |
2ec600d6 | 1738 | |
bba95fef JB |
1739 | if (!ifidx) { |
1740 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1741 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1742 | nl80211_policy); | |
1743 | if (err) | |
1744 | return err; | |
1745 | ||
1746 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
1747 | return -EINVAL; | |
1748 | ||
1749 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
1750 | if (!ifidx) | |
1751 | return -EINVAL; | |
1752 | } | |
1753 | ||
3b85875a JB |
1754 | rtnl_lock(); |
1755 | ||
1756 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1757 | if (!netdev) { | |
1758 | err = -ENODEV; | |
1759 | goto out_rtnl; | |
1760 | } | |
bba95fef JB |
1761 | |
1762 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
1763 | if (IS_ERR(dev)) { | |
1764 | err = PTR_ERR(dev); | |
3b85875a | 1765 | goto out_rtnl; |
bba95fef JB |
1766 | } |
1767 | ||
1768 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 1769 | err = -EOPNOTSUPP; |
bba95fef JB |
1770 | goto out_err; |
1771 | } | |
1772 | ||
eec60b03 JM |
1773 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1774 | err = -EOPNOTSUPP; | |
1775 | goto out; | |
1776 | } | |
1777 | ||
bba95fef JB |
1778 | while (1) { |
1779 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
1780 | dst, next_hop, &pinfo); | |
1781 | if (err == -ENOENT) | |
2ec600d6 | 1782 | break; |
bba95fef | 1783 | if (err) |
3b85875a | 1784 | goto out_err; |
2ec600d6 | 1785 | |
bba95fef JB |
1786 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
1787 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1788 | netdev, dst, next_hop, | |
1789 | &pinfo) < 0) | |
1790 | goto out; | |
2ec600d6 | 1791 | |
bba95fef | 1792 | path_idx++; |
2ec600d6 | 1793 | } |
2ec600d6 | 1794 | |
2ec600d6 | 1795 | |
bba95fef JB |
1796 | out: |
1797 | cb->args[1] = path_idx; | |
1798 | err = skb->len; | |
bba95fef JB |
1799 | out_err: |
1800 | cfg80211_put_dev(dev); | |
3b85875a JB |
1801 | out_rtnl: |
1802 | rtnl_unlock(); | |
bba95fef JB |
1803 | |
1804 | return err; | |
2ec600d6 LCC |
1805 | } |
1806 | ||
1807 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
1808 | { | |
1809 | struct cfg80211_registered_device *drv; | |
1810 | int err; | |
1811 | struct net_device *dev; | |
1812 | struct mpath_info pinfo; | |
1813 | struct sk_buff *msg; | |
1814 | u8 *dst = NULL; | |
1815 | u8 next_hop[ETH_ALEN]; | |
1816 | ||
1817 | memset(&pinfo, 0, sizeof(pinfo)); | |
1818 | ||
1819 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1820 | return -EINVAL; | |
1821 | ||
1822 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1823 | ||
3b85875a JB |
1824 | rtnl_lock(); |
1825 | ||
bba95fef | 1826 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1827 | if (err) |
3b85875a | 1828 | goto out_rtnl; |
2ec600d6 LCC |
1829 | |
1830 | if (!drv->ops->get_mpath) { | |
1831 | err = -EOPNOTSUPP; | |
1832 | goto out; | |
1833 | } | |
1834 | ||
eec60b03 JM |
1835 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1836 | err = -EOPNOTSUPP; | |
1837 | goto out; | |
1838 | } | |
1839 | ||
2ec600d6 | 1840 | err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
1841 | if (err) |
1842 | goto out; | |
1843 | ||
1844 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
1845 | if (!msg) | |
1846 | goto out; | |
1847 | ||
1848 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
1849 | dev, dst, next_hop, &pinfo) < 0) | |
1850 | goto out_free; | |
1851 | ||
1852 | err = genlmsg_unicast(msg, info->snd_pid); | |
1853 | goto out; | |
1854 | ||
1855 | out_free: | |
1856 | nlmsg_free(msg); | |
2ec600d6 LCC |
1857 | out: |
1858 | cfg80211_put_dev(drv); | |
1859 | dev_put(dev); | |
3b85875a JB |
1860 | out_rtnl: |
1861 | rtnl_unlock(); | |
1862 | ||
2ec600d6 LCC |
1863 | return err; |
1864 | } | |
1865 | ||
1866 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
1867 | { | |
1868 | struct cfg80211_registered_device *drv; | |
1869 | int err; | |
1870 | struct net_device *dev; | |
1871 | u8 *dst = NULL; | |
1872 | u8 *next_hop = NULL; | |
1873 | ||
1874 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1875 | return -EINVAL; | |
1876 | ||
1877 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1878 | return -EINVAL; | |
1879 | ||
1880 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1881 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1882 | ||
3b85875a JB |
1883 | rtnl_lock(); |
1884 | ||
bba95fef | 1885 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1886 | if (err) |
3b85875a | 1887 | goto out_rtnl; |
2ec600d6 LCC |
1888 | |
1889 | if (!drv->ops->change_mpath) { | |
1890 | err = -EOPNOTSUPP; | |
1891 | goto out; | |
1892 | } | |
1893 | ||
eec60b03 JM |
1894 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1895 | err = -EOPNOTSUPP; | |
1896 | goto out; | |
1897 | } | |
1898 | ||
35a8efe1 JM |
1899 | if (!netif_running(dev)) { |
1900 | err = -ENETDOWN; | |
1901 | goto out; | |
1902 | } | |
1903 | ||
2ec600d6 | 1904 | err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1905 | |
1906 | out: | |
1907 | cfg80211_put_dev(drv); | |
1908 | dev_put(dev); | |
3b85875a JB |
1909 | out_rtnl: |
1910 | rtnl_unlock(); | |
1911 | ||
2ec600d6 LCC |
1912 | return err; |
1913 | } | |
1914 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
1915 | { | |
1916 | struct cfg80211_registered_device *drv; | |
1917 | int err; | |
1918 | struct net_device *dev; | |
1919 | u8 *dst = NULL; | |
1920 | u8 *next_hop = NULL; | |
1921 | ||
1922 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1923 | return -EINVAL; | |
1924 | ||
1925 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
1926 | return -EINVAL; | |
1927 | ||
1928 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1929 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
1930 | ||
3b85875a JB |
1931 | rtnl_lock(); |
1932 | ||
bba95fef | 1933 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1934 | if (err) |
3b85875a | 1935 | goto out_rtnl; |
2ec600d6 LCC |
1936 | |
1937 | if (!drv->ops->add_mpath) { | |
1938 | err = -EOPNOTSUPP; | |
1939 | goto out; | |
1940 | } | |
1941 | ||
eec60b03 JM |
1942 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
1943 | err = -EOPNOTSUPP; | |
1944 | goto out; | |
1945 | } | |
1946 | ||
35a8efe1 JM |
1947 | if (!netif_running(dev)) { |
1948 | err = -ENETDOWN; | |
1949 | goto out; | |
1950 | } | |
1951 | ||
2ec600d6 | 1952 | err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
1953 | |
1954 | out: | |
1955 | cfg80211_put_dev(drv); | |
1956 | dev_put(dev); | |
3b85875a JB |
1957 | out_rtnl: |
1958 | rtnl_unlock(); | |
1959 | ||
2ec600d6 LCC |
1960 | return err; |
1961 | } | |
1962 | ||
1963 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
1964 | { | |
1965 | struct cfg80211_registered_device *drv; | |
1966 | int err; | |
1967 | struct net_device *dev; | |
1968 | u8 *dst = NULL; | |
1969 | ||
1970 | if (info->attrs[NL80211_ATTR_MAC]) | |
1971 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1972 | ||
3b85875a JB |
1973 | rtnl_lock(); |
1974 | ||
bba95fef | 1975 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2ec600d6 | 1976 | if (err) |
3b85875a | 1977 | goto out_rtnl; |
2ec600d6 LCC |
1978 | |
1979 | if (!drv->ops->del_mpath) { | |
1980 | err = -EOPNOTSUPP; | |
1981 | goto out; | |
1982 | } | |
1983 | ||
2ec600d6 | 1984 | err = drv->ops->del_mpath(&drv->wiphy, dev, dst); |
2ec600d6 LCC |
1985 | |
1986 | out: | |
1987 | cfg80211_put_dev(drv); | |
1988 | dev_put(dev); | |
3b85875a JB |
1989 | out_rtnl: |
1990 | rtnl_unlock(); | |
1991 | ||
2ec600d6 LCC |
1992 | return err; |
1993 | } | |
1994 | ||
9f1ba906 JM |
1995 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
1996 | { | |
1997 | struct cfg80211_registered_device *drv; | |
1998 | int err; | |
1999 | struct net_device *dev; | |
2000 | struct bss_parameters params; | |
2001 | ||
2002 | memset(¶ms, 0, sizeof(params)); | |
2003 | /* default to not changing parameters */ | |
2004 | params.use_cts_prot = -1; | |
2005 | params.use_short_preamble = -1; | |
2006 | params.use_short_slot_time = -1; | |
2007 | ||
2008 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2009 | params.use_cts_prot = | |
2010 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2011 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2012 | params.use_short_preamble = | |
2013 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2014 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2015 | params.use_short_slot_time = | |
2016 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2017 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2018 | params.basic_rates = | |
2019 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2020 | params.basic_rates_len = | |
2021 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2022 | } | |
9f1ba906 | 2023 | |
3b85875a JB |
2024 | rtnl_lock(); |
2025 | ||
9f1ba906 JM |
2026 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2027 | if (err) | |
3b85875a | 2028 | goto out_rtnl; |
9f1ba906 JM |
2029 | |
2030 | if (!drv->ops->change_bss) { | |
2031 | err = -EOPNOTSUPP; | |
2032 | goto out; | |
2033 | } | |
2034 | ||
eec60b03 JM |
2035 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2036 | err = -EOPNOTSUPP; | |
2037 | goto out; | |
2038 | } | |
2039 | ||
9f1ba906 | 2040 | err = drv->ops->change_bss(&drv->wiphy, dev, ¶ms); |
9f1ba906 JM |
2041 | |
2042 | out: | |
2043 | cfg80211_put_dev(drv); | |
2044 | dev_put(dev); | |
3b85875a JB |
2045 | out_rtnl: |
2046 | rtnl_unlock(); | |
2047 | ||
9f1ba906 JM |
2048 | return err; |
2049 | } | |
2050 | ||
b2e1b302 LR |
2051 | static const struct nla_policy |
2052 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2053 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2054 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2055 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2056 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2057 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2058 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2059 | }; | |
2060 | ||
2061 | static int parse_reg_rule(struct nlattr *tb[], | |
2062 | struct ieee80211_reg_rule *reg_rule) | |
2063 | { | |
2064 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2065 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2066 | ||
2067 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2068 | return -EINVAL; | |
2069 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2070 | return -EINVAL; | |
2071 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2072 | return -EINVAL; | |
2073 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2074 | return -EINVAL; | |
2075 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2076 | return -EINVAL; | |
2077 | ||
2078 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2079 | ||
2080 | freq_range->start_freq_khz = | |
2081 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2082 | freq_range->end_freq_khz = | |
2083 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2084 | freq_range->max_bandwidth_khz = | |
2085 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2086 | ||
2087 | power_rule->max_eirp = | |
2088 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2089 | ||
2090 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2091 | power_rule->max_antenna_gain = | |
2092 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2093 | ||
2094 | return 0; | |
2095 | } | |
2096 | ||
2097 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2098 | { | |
2099 | int r; | |
2100 | char *data = NULL; | |
2101 | ||
80778f18 LR |
2102 | /* |
2103 | * You should only get this when cfg80211 hasn't yet initialized | |
2104 | * completely when built-in to the kernel right between the time | |
2105 | * window between nl80211_init() and regulatory_init(), if that is | |
2106 | * even possible. | |
2107 | */ | |
2108 | mutex_lock(&cfg80211_mutex); | |
2109 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2110 | mutex_unlock(&cfg80211_mutex); |
2111 | return -EINPROGRESS; | |
80778f18 | 2112 | } |
fe33eb39 | 2113 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2114 | |
fe33eb39 LR |
2115 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2116 | return -EINVAL; | |
b2e1b302 LR |
2117 | |
2118 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2119 | ||
2120 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
2121 | /* We ignore world regdom requests with the old regdom setup */ | |
fe33eb39 LR |
2122 | if (is_world_regdom(data)) |
2123 | return -EINVAL; | |
b2e1b302 | 2124 | #endif |
fe33eb39 LR |
2125 | |
2126 | r = regulatory_hint_user(data); | |
2127 | ||
b2e1b302 LR |
2128 | return r; |
2129 | } | |
2130 | ||
93da9cc1 | 2131 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2132 | struct genl_info *info) | |
2133 | { | |
2134 | struct cfg80211_registered_device *drv; | |
2135 | struct mesh_config cur_params; | |
2136 | int err; | |
2137 | struct net_device *dev; | |
2138 | void *hdr; | |
2139 | struct nlattr *pinfoattr; | |
2140 | struct sk_buff *msg; | |
2141 | ||
3b85875a JB |
2142 | rtnl_lock(); |
2143 | ||
93da9cc1 | 2144 | /* Look up our device */ |
2145 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2146 | if (err) | |
3b85875a | 2147 | goto out_rtnl; |
93da9cc1 | 2148 | |
f3f92586 JM |
2149 | if (!drv->ops->get_mesh_params) { |
2150 | err = -EOPNOTSUPP; | |
2151 | goto out; | |
2152 | } | |
2153 | ||
93da9cc1 | 2154 | /* Get the mesh params */ |
93da9cc1 | 2155 | err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params); |
93da9cc1 | 2156 | if (err) |
2157 | goto out; | |
2158 | ||
2159 | /* Draw up a netlink message to send back */ | |
2160 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2161 | if (!msg) { | |
2162 | err = -ENOBUFS; | |
2163 | goto out; | |
2164 | } | |
2165 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2166 | NL80211_CMD_GET_MESH_PARAMS); | |
2167 | if (!hdr) | |
2168 | goto nla_put_failure; | |
2169 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2170 | if (!pinfoattr) | |
2171 | goto nla_put_failure; | |
2172 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2173 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2174 | cur_params.dot11MeshRetryTimeout); | |
2175 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2176 | cur_params.dot11MeshConfirmTimeout); | |
2177 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2178 | cur_params.dot11MeshHoldingTimeout); | |
2179 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2180 | cur_params.dot11MeshMaxPeerLinks); | |
2181 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2182 | cur_params.dot11MeshMaxRetries); | |
2183 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2184 | cur_params.dot11MeshTTL); | |
2185 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2186 | cur_params.auto_open_plinks); | |
2187 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2188 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2189 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2190 | cur_params.path_refresh_time); | |
2191 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2192 | cur_params.min_discovery_timeout); | |
2193 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2194 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2195 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2196 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2197 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2198 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
2199 | nla_nest_end(msg, pinfoattr); | |
2200 | genlmsg_end(msg, hdr); | |
2201 | err = genlmsg_unicast(msg, info->snd_pid); | |
2202 | goto out; | |
2203 | ||
3b85875a | 2204 | nla_put_failure: |
93da9cc1 | 2205 | genlmsg_cancel(msg, hdr); |
2206 | err = -EMSGSIZE; | |
3b85875a | 2207 | out: |
93da9cc1 | 2208 | /* Cleanup */ |
2209 | cfg80211_put_dev(drv); | |
2210 | dev_put(dev); | |
3b85875a JB |
2211 | out_rtnl: |
2212 | rtnl_unlock(); | |
2213 | ||
93da9cc1 | 2214 | return err; |
2215 | } | |
2216 | ||
2217 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2218 | do {\ | |
2219 | if (table[attr_num]) {\ | |
2220 | cfg.param = nla_fn(table[attr_num]); \ | |
2221 | mask |= (1 << (attr_num - 1)); \ | |
2222 | } \ | |
2223 | } while (0);\ | |
2224 | ||
2225 | static struct nla_policy | |
2226 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2227 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2228 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2229 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2230 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2231 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2232 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2233 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2234 | ||
2235 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2236 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2237 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2238 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2239 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2240 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2241 | }; | |
2242 | ||
2243 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2244 | { | |
2245 | int err; | |
2246 | u32 mask; | |
2247 | struct cfg80211_registered_device *drv; | |
2248 | struct net_device *dev; | |
2249 | struct mesh_config cfg; | |
2250 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2251 | struct nlattr *parent_attr; | |
2252 | ||
2253 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2254 | if (!parent_attr) | |
2255 | return -EINVAL; | |
2256 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2257 | parent_attr, nl80211_meshconf_params_policy)) | |
2258 | return -EINVAL; | |
2259 | ||
3b85875a JB |
2260 | rtnl_lock(); |
2261 | ||
93da9cc1 | 2262 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2263 | if (err) | |
3b85875a | 2264 | goto out_rtnl; |
93da9cc1 | 2265 | |
f3f92586 JM |
2266 | if (!drv->ops->set_mesh_params) { |
2267 | err = -EOPNOTSUPP; | |
2268 | goto out; | |
2269 | } | |
2270 | ||
93da9cc1 | 2271 | /* This makes sure that there aren't more than 32 mesh config |
2272 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2273 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2274 | ||
2275 | /* Fill in the params struct */ | |
2276 | mask = 0; | |
2277 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2278 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2279 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2280 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2281 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2282 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2283 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2284 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2285 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2286 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2287 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2288 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2289 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2290 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2291 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2292 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2293 | nla_get_u8); | |
2294 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2295 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2296 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2297 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2298 | nla_get_u16); | |
2299 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2300 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2301 | nla_get_u32); | |
2302 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2303 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2304 | nla_get_u16); | |
2305 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2306 | dot11MeshHWMPnetDiameterTraversalTime, | |
2307 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2308 | nla_get_u16); | |
2309 | ||
2310 | /* Apply changes */ | |
93da9cc1 | 2311 | err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask); |
93da9cc1 | 2312 | |
f3f92586 | 2313 | out: |
93da9cc1 | 2314 | /* cleanup */ |
2315 | cfg80211_put_dev(drv); | |
2316 | dev_put(dev); | |
3b85875a JB |
2317 | out_rtnl: |
2318 | rtnl_unlock(); | |
2319 | ||
93da9cc1 | 2320 | return err; |
2321 | } | |
2322 | ||
2323 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2324 | ||
f130347c LR |
2325 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2326 | { | |
2327 | struct sk_buff *msg; | |
2328 | void *hdr = NULL; | |
2329 | struct nlattr *nl_reg_rules; | |
2330 | unsigned int i; | |
2331 | int err = -EINVAL; | |
2332 | ||
a1794390 | 2333 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2334 | |
2335 | if (!cfg80211_regdomain) | |
2336 | goto out; | |
2337 | ||
2338 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
2339 | if (!msg) { | |
2340 | err = -ENOBUFS; | |
2341 | goto out; | |
2342 | } | |
2343 | ||
2344 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2345 | NL80211_CMD_GET_REG); | |
2346 | if (!hdr) | |
2347 | goto nla_put_failure; | |
2348 | ||
2349 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2350 | cfg80211_regdomain->alpha2); | |
2351 | ||
2352 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2353 | if (!nl_reg_rules) | |
2354 | goto nla_put_failure; | |
2355 | ||
2356 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2357 | struct nlattr *nl_reg_rule; | |
2358 | const struct ieee80211_reg_rule *reg_rule; | |
2359 | const struct ieee80211_freq_range *freq_range; | |
2360 | const struct ieee80211_power_rule *power_rule; | |
2361 | ||
2362 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2363 | freq_range = ®_rule->freq_range; | |
2364 | power_rule = ®_rule->power_rule; | |
2365 | ||
2366 | nl_reg_rule = nla_nest_start(msg, i); | |
2367 | if (!nl_reg_rule) | |
2368 | goto nla_put_failure; | |
2369 | ||
2370 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2371 | reg_rule->flags); | |
2372 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2373 | freq_range->start_freq_khz); | |
2374 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2375 | freq_range->end_freq_khz); | |
2376 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2377 | freq_range->max_bandwidth_khz); | |
2378 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2379 | power_rule->max_antenna_gain); | |
2380 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2381 | power_rule->max_eirp); | |
2382 | ||
2383 | nla_nest_end(msg, nl_reg_rule); | |
2384 | } | |
2385 | ||
2386 | nla_nest_end(msg, nl_reg_rules); | |
2387 | ||
2388 | genlmsg_end(msg, hdr); | |
2389 | err = genlmsg_unicast(msg, info->snd_pid); | |
2390 | goto out; | |
2391 | ||
2392 | nla_put_failure: | |
2393 | genlmsg_cancel(msg, hdr); | |
2394 | err = -EMSGSIZE; | |
2395 | out: | |
a1794390 | 2396 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2397 | return err; |
2398 | } | |
2399 | ||
b2e1b302 LR |
2400 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2401 | { | |
2402 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2403 | struct nlattr *nl_reg_rule; | |
2404 | char *alpha2 = NULL; | |
2405 | int rem_reg_rules = 0, r = 0; | |
2406 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2407 | struct ieee80211_regdomain *rd = NULL; | |
2408 | ||
2409 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2410 | return -EINVAL; | |
2411 | ||
2412 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2413 | return -EINVAL; | |
2414 | ||
2415 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2416 | ||
2417 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2418 | rem_reg_rules) { | |
2419 | num_rules++; | |
2420 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
2421 | goto bad_reg; | |
2422 | } | |
2423 | ||
2424 | if (!reg_is_valid_request(alpha2)) | |
2425 | return -EINVAL; | |
2426 | ||
2427 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2428 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2429 | ||
2430 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
2431 | if (!rd) | |
2432 | return -ENOMEM; | |
2433 | ||
2434 | rd->n_reg_rules = num_rules; | |
2435 | rd->alpha2[0] = alpha2[0]; | |
2436 | rd->alpha2[1] = alpha2[1]; | |
2437 | ||
2438 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2439 | rem_reg_rules) { | |
2440 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2441 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2442 | reg_rule_policy); | |
2443 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2444 | if (r) | |
2445 | goto bad_reg; | |
2446 | ||
2447 | rule_idx++; | |
2448 | ||
2449 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) | |
2450 | goto bad_reg; | |
2451 | } | |
2452 | ||
2453 | BUG_ON(rule_idx != num_rules); | |
2454 | ||
a1794390 | 2455 | mutex_lock(&cfg80211_mutex); |
b2e1b302 | 2456 | r = set_regdom(rd); |
a1794390 | 2457 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 LR |
2458 | return r; |
2459 | ||
d2372b31 | 2460 | bad_reg: |
b2e1b302 LR |
2461 | kfree(rd); |
2462 | return -EINVAL; | |
2463 | } | |
2464 | ||
2a519311 JB |
2465 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2466 | { | |
2467 | struct cfg80211_registered_device *drv; | |
2468 | struct net_device *dev; | |
2469 | struct cfg80211_scan_request *request; | |
2470 | struct cfg80211_ssid *ssid; | |
2471 | struct ieee80211_channel *channel; | |
2472 | struct nlattr *attr; | |
2473 | struct wiphy *wiphy; | |
2474 | int err, tmp, n_ssids = 0, n_channels = 0, i; | |
2475 | enum ieee80211_band band; | |
70692ad2 | 2476 | size_t ie_len; |
2a519311 | 2477 | |
f4a11bb0 JB |
2478 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2479 | return -EINVAL; | |
2480 | ||
3b85875a JB |
2481 | rtnl_lock(); |
2482 | ||
2a519311 JB |
2483 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); |
2484 | if (err) | |
3b85875a | 2485 | goto out_rtnl; |
2a519311 JB |
2486 | |
2487 | wiphy = &drv->wiphy; | |
2488 | ||
2489 | if (!drv->ops->scan) { | |
2490 | err = -EOPNOTSUPP; | |
2491 | goto out; | |
2492 | } | |
2493 | ||
35a8efe1 JM |
2494 | if (!netif_running(dev)) { |
2495 | err = -ENETDOWN; | |
2496 | goto out; | |
2497 | } | |
2498 | ||
2a519311 JB |
2499 | if (drv->scan_req) { |
2500 | err = -EBUSY; | |
3b85875a | 2501 | goto out; |
2a519311 JB |
2502 | } |
2503 | ||
2504 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2505 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) | |
2506 | n_channels++; | |
2507 | if (!n_channels) { | |
2508 | err = -EINVAL; | |
3b85875a | 2509 | goto out; |
2a519311 JB |
2510 | } |
2511 | } else { | |
2512 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) | |
2513 | if (wiphy->bands[band]) | |
2514 | n_channels += wiphy->bands[band]->n_channels; | |
2515 | } | |
2516 | ||
2517 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2518 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2519 | n_ssids++; | |
2520 | ||
2521 | if (n_ssids > wiphy->max_scan_ssids) { | |
2522 | err = -EINVAL; | |
3b85875a | 2523 | goto out; |
2a519311 JB |
2524 | } |
2525 | ||
70692ad2 JM |
2526 | if (info->attrs[NL80211_ATTR_IE]) |
2527 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2528 | else | |
2529 | ie_len = 0; | |
2530 | ||
2a519311 JB |
2531 | request = kzalloc(sizeof(*request) |
2532 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2533 | + sizeof(channel) * n_channels |
2534 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
2535 | if (!request) { |
2536 | err = -ENOMEM; | |
3b85875a | 2537 | goto out; |
2a519311 JB |
2538 | } |
2539 | ||
2540 | request->channels = (void *)((char *)request + sizeof(*request)); | |
2541 | request->n_channels = n_channels; | |
2542 | if (n_ssids) | |
2543 | request->ssids = (void *)(request->channels + n_channels); | |
2544 | request->n_ssids = n_ssids; | |
70692ad2 JM |
2545 | if (ie_len) { |
2546 | if (request->ssids) | |
2547 | request->ie = (void *)(request->ssids + n_ssids); | |
2548 | else | |
2549 | request->ie = (void *)(request->channels + n_channels); | |
2550 | } | |
2a519311 JB |
2551 | |
2552 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
2553 | /* user specified, bail out if channel not found */ | |
2554 | request->n_channels = n_channels; | |
2555 | i = 0; | |
2556 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
2557 | request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2558 | if (!request->channels[i]) { | |
2559 | err = -EINVAL; | |
2560 | goto out_free; | |
2561 | } | |
2562 | i++; | |
2563 | } | |
2564 | } else { | |
2565 | /* all channels */ | |
2566 | i = 0; | |
2567 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
2568 | int j; | |
2569 | if (!wiphy->bands[band]) | |
2570 | continue; | |
2571 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
2572 | request->channels[i] = &wiphy->bands[band]->channels[j]; | |
2573 | i++; | |
2574 | } | |
2575 | } | |
2576 | } | |
2577 | ||
2578 | i = 0; | |
2579 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2580 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2581 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2582 | err = -EINVAL; | |
2583 | goto out_free; | |
2584 | } | |
2585 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2586 | request->ssids[i].ssid_len = nla_len(attr); | |
2587 | i++; | |
2588 | } | |
2589 | } | |
2590 | ||
70692ad2 JM |
2591 | if (info->attrs[NL80211_ATTR_IE]) { |
2592 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2593 | memcpy(request->ie, nla_data(info->attrs[NL80211_ATTR_IE]), | |
2594 | request->ie_len); | |
2595 | } | |
2596 | ||
2a519311 JB |
2597 | request->ifidx = dev->ifindex; |
2598 | request->wiphy = &drv->wiphy; | |
2599 | ||
2600 | drv->scan_req = request; | |
2601 | err = drv->ops->scan(&drv->wiphy, dev, request); | |
2602 | ||
2603 | out_free: | |
2604 | if (err) { | |
2605 | drv->scan_req = NULL; | |
2606 | kfree(request); | |
2607 | } | |
2a519311 JB |
2608 | out: |
2609 | cfg80211_put_dev(drv); | |
2610 | dev_put(dev); | |
3b85875a JB |
2611 | out_rtnl: |
2612 | rtnl_unlock(); | |
2613 | ||
2a519311 JB |
2614 | return err; |
2615 | } | |
2616 | ||
2617 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
2618 | struct cfg80211_registered_device *rdev, | |
2619 | struct net_device *dev, | |
2620 | struct cfg80211_bss *res) | |
2621 | { | |
2622 | void *hdr; | |
2623 | struct nlattr *bss; | |
2624 | ||
2625 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
2626 | NL80211_CMD_NEW_SCAN_RESULTS); | |
2627 | if (!hdr) | |
2628 | return -1; | |
2629 | ||
2630 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION, | |
2631 | rdev->bss_generation); | |
2632 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2633 | ||
2634 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
2635 | if (!bss) | |
2636 | goto nla_put_failure; | |
2637 | if (!is_zero_ether_addr(res->bssid)) | |
2638 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
2639 | if (res->information_elements && res->len_information_elements) | |
2640 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
2641 | res->len_information_elements, | |
2642 | res->information_elements); | |
2643 | if (res->tsf) | |
2644 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
2645 | if (res->beacon_interval) | |
2646 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
2647 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
2648 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
2649 | ||
77965c97 | 2650 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
2651 | case CFG80211_SIGNAL_TYPE_MBM: |
2652 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
2653 | break; | |
2654 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
2655 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
2656 | break; | |
2657 | default: | |
2658 | break; | |
2659 | } | |
2660 | ||
2661 | nla_nest_end(msg, bss); | |
2662 | ||
2663 | return genlmsg_end(msg, hdr); | |
2664 | ||
2665 | nla_put_failure: | |
2666 | genlmsg_cancel(msg, hdr); | |
2667 | return -EMSGSIZE; | |
2668 | } | |
2669 | ||
2670 | static int nl80211_dump_scan(struct sk_buff *skb, | |
2671 | struct netlink_callback *cb) | |
2672 | { | |
2673 | struct cfg80211_registered_device *dev; | |
2674 | struct net_device *netdev; | |
2675 | struct cfg80211_internal_bss *scan; | |
2676 | int ifidx = cb->args[0]; | |
2677 | int start = cb->args[1], idx = 0; | |
2678 | int err; | |
2679 | ||
2680 | if (!ifidx) { | |
2681 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
2682 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
2683 | nl80211_policy); | |
2684 | if (err) | |
2685 | return err; | |
2686 | ||
2687 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
2688 | return -EINVAL; | |
2689 | ||
2690 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
2691 | if (!ifidx) | |
2692 | return -EINVAL; | |
2693 | cb->args[0] = ifidx; | |
2694 | } | |
2695 | ||
2696 | netdev = dev_get_by_index(&init_net, ifidx); | |
2697 | if (!netdev) | |
2698 | return -ENODEV; | |
2699 | ||
2700 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
2701 | if (IS_ERR(dev)) { | |
2702 | err = PTR_ERR(dev); | |
2703 | goto out_put_netdev; | |
2704 | } | |
2705 | ||
2706 | spin_lock_bh(&dev->bss_lock); | |
2707 | cfg80211_bss_expire(dev); | |
2708 | ||
2709 | list_for_each_entry(scan, &dev->bss_list, list) { | |
2710 | if (++idx <= start) | |
2711 | continue; | |
2712 | if (nl80211_send_bss(skb, | |
2713 | NETLINK_CB(cb->skb).pid, | |
2714 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2715 | dev, netdev, &scan->pub) < 0) { | |
2716 | idx--; | |
2717 | goto out; | |
2718 | } | |
2719 | } | |
2720 | ||
2721 | out: | |
2722 | spin_unlock_bh(&dev->bss_lock); | |
2723 | ||
2724 | cb->args[1] = idx; | |
2725 | err = skb->len; | |
2726 | cfg80211_put_dev(dev); | |
2727 | out_put_netdev: | |
2728 | dev_put(netdev); | |
2729 | ||
2730 | return err; | |
2731 | } | |
2732 | ||
255e737e JM |
2733 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
2734 | { | |
2735 | return auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM || | |
2736 | auth_type == NL80211_AUTHTYPE_SHARED_KEY || | |
2737 | auth_type == NL80211_AUTHTYPE_FT || | |
2738 | auth_type == NL80211_AUTHTYPE_NETWORK_EAP; | |
2739 | } | |
2740 | ||
636a5d36 JM |
2741 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
2742 | { | |
2743 | struct cfg80211_registered_device *drv; | |
2744 | struct net_device *dev; | |
2745 | struct cfg80211_auth_request req; | |
2746 | struct wiphy *wiphy; | |
2747 | int err; | |
2748 | ||
f4a11bb0 JB |
2749 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2750 | return -EINVAL; | |
2751 | ||
2752 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2753 | return -EINVAL; | |
2754 | ||
1778092e JM |
2755 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
2756 | return -EINVAL; | |
2757 | ||
636a5d36 JM |
2758 | rtnl_lock(); |
2759 | ||
2760 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2761 | if (err) | |
2762 | goto unlock_rtnl; | |
2763 | ||
2764 | if (!drv->ops->auth) { | |
2765 | err = -EOPNOTSUPP; | |
2766 | goto out; | |
2767 | } | |
2768 | ||
eec60b03 JM |
2769 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2770 | err = -EOPNOTSUPP; | |
2771 | goto out; | |
2772 | } | |
2773 | ||
35a8efe1 JM |
2774 | if (!netif_running(dev)) { |
2775 | err = -ENETDOWN; | |
2776 | goto out; | |
2777 | } | |
2778 | ||
636a5d36 JM |
2779 | wiphy = &drv->wiphy; |
2780 | memset(&req, 0, sizeof(req)); | |
2781 | ||
2782 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2783 | ||
2784 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2785 | req.chan = ieee80211_get_channel( | |
2786 | wiphy, | |
2787 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2788 | if (!req.chan) { | |
2789 | err = -EINVAL; | |
2790 | goto out; | |
2791 | } | |
2792 | } | |
2793 | ||
2794 | if (info->attrs[NL80211_ATTR_SSID]) { | |
2795 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
2796 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2797 | } | |
2798 | ||
2799 | if (info->attrs[NL80211_ATTR_IE]) { | |
2800 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2801 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2802 | } | |
2803 | ||
1778092e JM |
2804 | req.auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
2805 | if (!nl80211_valid_auth_type(req.auth_type)) { | |
2806 | err = -EINVAL; | |
2807 | goto out; | |
636a5d36 JM |
2808 | } |
2809 | ||
2810 | err = drv->ops->auth(&drv->wiphy, dev, &req); | |
2811 | ||
2812 | out: | |
2813 | cfg80211_put_dev(drv); | |
2814 | dev_put(dev); | |
2815 | unlock_rtnl: | |
2816 | rtnl_unlock(); | |
2817 | return err; | |
2818 | } | |
2819 | ||
2820 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) | |
2821 | { | |
2822 | struct cfg80211_registered_device *drv; | |
2823 | struct net_device *dev; | |
2824 | struct cfg80211_assoc_request req; | |
2825 | struct wiphy *wiphy; | |
2826 | int err; | |
2827 | ||
f4a11bb0 JB |
2828 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2829 | return -EINVAL; | |
2830 | ||
2831 | if (!info->attrs[NL80211_ATTR_MAC] || | |
2832 | !info->attrs[NL80211_ATTR_SSID]) | |
2833 | return -EINVAL; | |
2834 | ||
636a5d36 JM |
2835 | rtnl_lock(); |
2836 | ||
2837 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2838 | if (err) | |
2839 | goto unlock_rtnl; | |
2840 | ||
2841 | if (!drv->ops->assoc) { | |
2842 | err = -EOPNOTSUPP; | |
2843 | goto out; | |
2844 | } | |
2845 | ||
eec60b03 JM |
2846 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2847 | err = -EOPNOTSUPP; | |
2848 | goto out; | |
2849 | } | |
2850 | ||
35a8efe1 JM |
2851 | if (!netif_running(dev)) { |
2852 | err = -ENETDOWN; | |
2853 | goto out; | |
2854 | } | |
2855 | ||
636a5d36 JM |
2856 | wiphy = &drv->wiphy; |
2857 | memset(&req, 0, sizeof(req)); | |
2858 | ||
2859 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2860 | ||
2861 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
2862 | req.chan = ieee80211_get_channel( | |
2863 | wiphy, | |
2864 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
2865 | if (!req.chan) { | |
2866 | err = -EINVAL; | |
2867 | goto out; | |
2868 | } | |
2869 | } | |
2870 | ||
636a5d36 JM |
2871 | req.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
2872 | req.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
2873 | ||
2874 | if (info->attrs[NL80211_ATTR_IE]) { | |
2875 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2876 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2877 | } | |
2878 | ||
2879 | err = drv->ops->assoc(&drv->wiphy, dev, &req); | |
2880 | ||
2881 | out: | |
2882 | cfg80211_put_dev(drv); | |
2883 | dev_put(dev); | |
2884 | unlock_rtnl: | |
2885 | rtnl_unlock(); | |
2886 | return err; | |
2887 | } | |
2888 | ||
2889 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
2890 | { | |
2891 | struct cfg80211_registered_device *drv; | |
2892 | struct net_device *dev; | |
2893 | struct cfg80211_deauth_request req; | |
2894 | struct wiphy *wiphy; | |
2895 | int err; | |
2896 | ||
f4a11bb0 JB |
2897 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2898 | return -EINVAL; | |
2899 | ||
2900 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2901 | return -EINVAL; | |
2902 | ||
2903 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
2904 | return -EINVAL; | |
2905 | ||
636a5d36 JM |
2906 | rtnl_lock(); |
2907 | ||
2908 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2909 | if (err) | |
2910 | goto unlock_rtnl; | |
2911 | ||
2912 | if (!drv->ops->deauth) { | |
2913 | err = -EOPNOTSUPP; | |
2914 | goto out; | |
2915 | } | |
2916 | ||
eec60b03 JM |
2917 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2918 | err = -EOPNOTSUPP; | |
2919 | goto out; | |
2920 | } | |
2921 | ||
35a8efe1 JM |
2922 | if (!netif_running(dev)) { |
2923 | err = -ENETDOWN; | |
2924 | goto out; | |
2925 | } | |
2926 | ||
636a5d36 JM |
2927 | wiphy = &drv->wiphy; |
2928 | memset(&req, 0, sizeof(req)); | |
2929 | ||
2930 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2931 | ||
f4a11bb0 JB |
2932 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
2933 | if (req.reason_code == 0) { | |
2934 | /* Reason Code 0 is reserved */ | |
2935 | err = -EINVAL; | |
2936 | goto out; | |
255e737e | 2937 | } |
636a5d36 JM |
2938 | |
2939 | if (info->attrs[NL80211_ATTR_IE]) { | |
2940 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
2941 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2942 | } | |
2943 | ||
2944 | err = drv->ops->deauth(&drv->wiphy, dev, &req); | |
2945 | ||
2946 | out: | |
2947 | cfg80211_put_dev(drv); | |
2948 | dev_put(dev); | |
2949 | unlock_rtnl: | |
2950 | rtnl_unlock(); | |
2951 | return err; | |
2952 | } | |
2953 | ||
2954 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
2955 | { | |
2956 | struct cfg80211_registered_device *drv; | |
2957 | struct net_device *dev; | |
2958 | struct cfg80211_disassoc_request req; | |
2959 | struct wiphy *wiphy; | |
2960 | int err; | |
2961 | ||
f4a11bb0 JB |
2962 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2963 | return -EINVAL; | |
2964 | ||
2965 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2966 | return -EINVAL; | |
2967 | ||
2968 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
2969 | return -EINVAL; | |
2970 | ||
636a5d36 JM |
2971 | rtnl_lock(); |
2972 | ||
2973 | err = get_drv_dev_by_info_ifindex(info->attrs, &drv, &dev); | |
2974 | if (err) | |
2975 | goto unlock_rtnl; | |
2976 | ||
2977 | if (!drv->ops->disassoc) { | |
2978 | err = -EOPNOTSUPP; | |
2979 | goto out; | |
2980 | } | |
2981 | ||
eec60b03 JM |
2982 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
2983 | err = -EOPNOTSUPP; | |
2984 | goto out; | |
2985 | } | |
2986 | ||
35a8efe1 JM |
2987 | if (!netif_running(dev)) { |
2988 | err = -ENETDOWN; | |
2989 | goto out; | |
2990 | } | |
2991 | ||
636a5d36 JM |
2992 | wiphy = &drv->wiphy; |
2993 | memset(&req, 0, sizeof(req)); | |
2994 | ||
2995 | req.peer_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2996 | ||
f4a11bb0 JB |
2997 | req.reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
2998 | if (req.reason_code == 0) { | |
2999 | /* Reason Code 0 is reserved */ | |
3000 | err = -EINVAL; | |
3001 | goto out; | |
255e737e | 3002 | } |
636a5d36 JM |
3003 | |
3004 | if (info->attrs[NL80211_ATTR_IE]) { | |
3005 | req.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3006 | req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3007 | } | |
3008 | ||
3009 | err = drv->ops->disassoc(&drv->wiphy, dev, &req); | |
3010 | ||
3011 | out: | |
3012 | cfg80211_put_dev(drv); | |
3013 | dev_put(dev); | |
3014 | unlock_rtnl: | |
3015 | rtnl_unlock(); | |
3016 | return err; | |
3017 | } | |
3018 | ||
55682965 JB |
3019 | static struct genl_ops nl80211_ops[] = { |
3020 | { | |
3021 | .cmd = NL80211_CMD_GET_WIPHY, | |
3022 | .doit = nl80211_get_wiphy, | |
3023 | .dumpit = nl80211_dump_wiphy, | |
3024 | .policy = nl80211_policy, | |
3025 | /* can be retrieved by unprivileged users */ | |
3026 | }, | |
3027 | { | |
3028 | .cmd = NL80211_CMD_SET_WIPHY, | |
3029 | .doit = nl80211_set_wiphy, | |
3030 | .policy = nl80211_policy, | |
3031 | .flags = GENL_ADMIN_PERM, | |
3032 | }, | |
3033 | { | |
3034 | .cmd = NL80211_CMD_GET_INTERFACE, | |
3035 | .doit = nl80211_get_interface, | |
3036 | .dumpit = nl80211_dump_interface, | |
3037 | .policy = nl80211_policy, | |
3038 | /* can be retrieved by unprivileged users */ | |
3039 | }, | |
3040 | { | |
3041 | .cmd = NL80211_CMD_SET_INTERFACE, | |
3042 | .doit = nl80211_set_interface, | |
3043 | .policy = nl80211_policy, | |
3044 | .flags = GENL_ADMIN_PERM, | |
3045 | }, | |
3046 | { | |
3047 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
3048 | .doit = nl80211_new_interface, | |
3049 | .policy = nl80211_policy, | |
3050 | .flags = GENL_ADMIN_PERM, | |
3051 | }, | |
3052 | { | |
3053 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
3054 | .doit = nl80211_del_interface, | |
3055 | .policy = nl80211_policy, | |
41ade00f JB |
3056 | .flags = GENL_ADMIN_PERM, |
3057 | }, | |
3058 | { | |
3059 | .cmd = NL80211_CMD_GET_KEY, | |
3060 | .doit = nl80211_get_key, | |
3061 | .policy = nl80211_policy, | |
3062 | .flags = GENL_ADMIN_PERM, | |
3063 | }, | |
3064 | { | |
3065 | .cmd = NL80211_CMD_SET_KEY, | |
3066 | .doit = nl80211_set_key, | |
3067 | .policy = nl80211_policy, | |
3068 | .flags = GENL_ADMIN_PERM, | |
3069 | }, | |
3070 | { | |
3071 | .cmd = NL80211_CMD_NEW_KEY, | |
3072 | .doit = nl80211_new_key, | |
3073 | .policy = nl80211_policy, | |
3074 | .flags = GENL_ADMIN_PERM, | |
3075 | }, | |
3076 | { | |
3077 | .cmd = NL80211_CMD_DEL_KEY, | |
3078 | .doit = nl80211_del_key, | |
3079 | .policy = nl80211_policy, | |
55682965 JB |
3080 | .flags = GENL_ADMIN_PERM, |
3081 | }, | |
ed1b6cc7 JB |
3082 | { |
3083 | .cmd = NL80211_CMD_SET_BEACON, | |
3084 | .policy = nl80211_policy, | |
3085 | .flags = GENL_ADMIN_PERM, | |
3086 | .doit = nl80211_addset_beacon, | |
3087 | }, | |
3088 | { | |
3089 | .cmd = NL80211_CMD_NEW_BEACON, | |
3090 | .policy = nl80211_policy, | |
3091 | .flags = GENL_ADMIN_PERM, | |
3092 | .doit = nl80211_addset_beacon, | |
3093 | }, | |
3094 | { | |
3095 | .cmd = NL80211_CMD_DEL_BEACON, | |
3096 | .policy = nl80211_policy, | |
3097 | .flags = GENL_ADMIN_PERM, | |
3098 | .doit = nl80211_del_beacon, | |
3099 | }, | |
5727ef1b JB |
3100 | { |
3101 | .cmd = NL80211_CMD_GET_STATION, | |
3102 | .doit = nl80211_get_station, | |
2ec600d6 | 3103 | .dumpit = nl80211_dump_station, |
5727ef1b | 3104 | .policy = nl80211_policy, |
5727ef1b JB |
3105 | }, |
3106 | { | |
3107 | .cmd = NL80211_CMD_SET_STATION, | |
3108 | .doit = nl80211_set_station, | |
3109 | .policy = nl80211_policy, | |
3110 | .flags = GENL_ADMIN_PERM, | |
3111 | }, | |
3112 | { | |
3113 | .cmd = NL80211_CMD_NEW_STATION, | |
3114 | .doit = nl80211_new_station, | |
3115 | .policy = nl80211_policy, | |
3116 | .flags = GENL_ADMIN_PERM, | |
3117 | }, | |
3118 | { | |
3119 | .cmd = NL80211_CMD_DEL_STATION, | |
3120 | .doit = nl80211_del_station, | |
3121 | .policy = nl80211_policy, | |
2ec600d6 LCC |
3122 | .flags = GENL_ADMIN_PERM, |
3123 | }, | |
3124 | { | |
3125 | .cmd = NL80211_CMD_GET_MPATH, | |
3126 | .doit = nl80211_get_mpath, | |
3127 | .dumpit = nl80211_dump_mpath, | |
3128 | .policy = nl80211_policy, | |
3129 | .flags = GENL_ADMIN_PERM, | |
3130 | }, | |
3131 | { | |
3132 | .cmd = NL80211_CMD_SET_MPATH, | |
3133 | .doit = nl80211_set_mpath, | |
3134 | .policy = nl80211_policy, | |
3135 | .flags = GENL_ADMIN_PERM, | |
3136 | }, | |
3137 | { | |
3138 | .cmd = NL80211_CMD_NEW_MPATH, | |
3139 | .doit = nl80211_new_mpath, | |
3140 | .policy = nl80211_policy, | |
3141 | .flags = GENL_ADMIN_PERM, | |
3142 | }, | |
3143 | { | |
3144 | .cmd = NL80211_CMD_DEL_MPATH, | |
3145 | .doit = nl80211_del_mpath, | |
3146 | .policy = nl80211_policy, | |
9f1ba906 JM |
3147 | .flags = GENL_ADMIN_PERM, |
3148 | }, | |
3149 | { | |
3150 | .cmd = NL80211_CMD_SET_BSS, | |
3151 | .doit = nl80211_set_bss, | |
3152 | .policy = nl80211_policy, | |
b2e1b302 LR |
3153 | .flags = GENL_ADMIN_PERM, |
3154 | }, | |
f130347c LR |
3155 | { |
3156 | .cmd = NL80211_CMD_GET_REG, | |
3157 | .doit = nl80211_get_reg, | |
3158 | .policy = nl80211_policy, | |
3159 | /* can be retrieved by unprivileged users */ | |
3160 | }, | |
b2e1b302 LR |
3161 | { |
3162 | .cmd = NL80211_CMD_SET_REG, | |
3163 | .doit = nl80211_set_reg, | |
3164 | .policy = nl80211_policy, | |
3165 | .flags = GENL_ADMIN_PERM, | |
3166 | }, | |
3167 | { | |
3168 | .cmd = NL80211_CMD_REQ_SET_REG, | |
3169 | .doit = nl80211_req_set_reg, | |
3170 | .policy = nl80211_policy, | |
93da9cc1 | 3171 | .flags = GENL_ADMIN_PERM, |
3172 | }, | |
3173 | { | |
3174 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
3175 | .doit = nl80211_get_mesh_params, | |
3176 | .policy = nl80211_policy, | |
3177 | /* can be retrieved by unprivileged users */ | |
3178 | }, | |
3179 | { | |
3180 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
3181 | .doit = nl80211_set_mesh_params, | |
3182 | .policy = nl80211_policy, | |
9aed3cc1 JM |
3183 | .flags = GENL_ADMIN_PERM, |
3184 | }, | |
2a519311 JB |
3185 | { |
3186 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
3187 | .doit = nl80211_trigger_scan, | |
3188 | .policy = nl80211_policy, | |
3189 | .flags = GENL_ADMIN_PERM, | |
3190 | }, | |
3191 | { | |
3192 | .cmd = NL80211_CMD_GET_SCAN, | |
3193 | .policy = nl80211_policy, | |
3194 | .dumpit = nl80211_dump_scan, | |
3195 | }, | |
636a5d36 JM |
3196 | { |
3197 | .cmd = NL80211_CMD_AUTHENTICATE, | |
3198 | .doit = nl80211_authenticate, | |
3199 | .policy = nl80211_policy, | |
3200 | .flags = GENL_ADMIN_PERM, | |
3201 | }, | |
3202 | { | |
3203 | .cmd = NL80211_CMD_ASSOCIATE, | |
3204 | .doit = nl80211_associate, | |
3205 | .policy = nl80211_policy, | |
3206 | .flags = GENL_ADMIN_PERM, | |
3207 | }, | |
3208 | { | |
3209 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
3210 | .doit = nl80211_deauthenticate, | |
3211 | .policy = nl80211_policy, | |
3212 | .flags = GENL_ADMIN_PERM, | |
3213 | }, | |
3214 | { | |
3215 | .cmd = NL80211_CMD_DISASSOCIATE, | |
3216 | .doit = nl80211_disassociate, | |
3217 | .policy = nl80211_policy, | |
3218 | .flags = GENL_ADMIN_PERM, | |
3219 | }, | |
55682965 | 3220 | }; |
6039f6d2 JM |
3221 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
3222 | .name = "mlme", | |
3223 | }; | |
55682965 JB |
3224 | |
3225 | /* multicast groups */ | |
3226 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
3227 | .name = "config", | |
3228 | }; | |
2a519311 JB |
3229 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
3230 | .name = "scan", | |
3231 | }; | |
73d54c9e LR |
3232 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
3233 | .name = "regulatory", | |
3234 | }; | |
55682965 JB |
3235 | |
3236 | /* notification functions */ | |
3237 | ||
3238 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
3239 | { | |
3240 | struct sk_buff *msg; | |
3241 | ||
3242 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3243 | if (!msg) | |
3244 | return; | |
3245 | ||
3246 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
3247 | nlmsg_free(msg); | |
3248 | return; | |
3249 | } | |
3250 | ||
3251 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
3252 | } | |
3253 | ||
2a519311 JB |
3254 | static int nl80211_send_scan_donemsg(struct sk_buff *msg, |
3255 | struct cfg80211_registered_device *rdev, | |
3256 | struct net_device *netdev, | |
3257 | u32 pid, u32 seq, int flags, | |
3258 | u32 cmd) | |
3259 | { | |
3260 | void *hdr; | |
3261 | ||
3262 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
3263 | if (!hdr) | |
3264 | return -1; | |
3265 | ||
b5850a7a | 3266 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
3267 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
3268 | ||
3269 | /* XXX: we should probably bounce back the request? */ | |
3270 | ||
3271 | return genlmsg_end(msg, hdr); | |
3272 | ||
3273 | nla_put_failure: | |
3274 | genlmsg_cancel(msg, hdr); | |
3275 | return -EMSGSIZE; | |
3276 | } | |
3277 | ||
3278 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, | |
3279 | struct net_device *netdev) | |
3280 | { | |
3281 | struct sk_buff *msg; | |
3282 | ||
3283 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3284 | if (!msg) | |
3285 | return; | |
3286 | ||
3287 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3288 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
3289 | nlmsg_free(msg); | |
3290 | return; | |
3291 | } | |
3292 | ||
3293 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3294 | } | |
3295 | ||
3296 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
3297 | struct net_device *netdev) | |
3298 | { | |
3299 | struct sk_buff *msg; | |
3300 | ||
3301 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3302 | if (!msg) | |
3303 | return; | |
3304 | ||
3305 | if (nl80211_send_scan_donemsg(msg, rdev, netdev, 0, 0, 0, | |
3306 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
3307 | nlmsg_free(msg); | |
3308 | return; | |
3309 | } | |
3310 | ||
3311 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
3312 | } | |
3313 | ||
73d54c9e LR |
3314 | /* |
3315 | * This can happen on global regulatory changes or device specific settings | |
3316 | * based on custom world regulatory domains. | |
3317 | */ | |
3318 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
3319 | { | |
3320 | struct sk_buff *msg; | |
3321 | void *hdr; | |
3322 | ||
3323 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
3324 | if (!msg) | |
3325 | return; | |
3326 | ||
3327 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
3328 | if (!hdr) { | |
3329 | nlmsg_free(msg); | |
3330 | return; | |
3331 | } | |
3332 | ||
3333 | /* Userspace can always count this one always being set */ | |
3334 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
3335 | ||
3336 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
3337 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3338 | NL80211_REGDOM_TYPE_WORLD); | |
3339 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
3340 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3341 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
3342 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
3343 | request->intersect) | |
3344 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3345 | NL80211_REGDOM_TYPE_INTERSECTION); | |
3346 | else { | |
3347 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
3348 | NL80211_REGDOM_TYPE_COUNTRY); | |
3349 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
3350 | } | |
3351 | ||
3352 | if (wiphy_idx_valid(request->wiphy_idx)) | |
3353 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
3354 | ||
3355 | if (genlmsg_end(msg, hdr) < 0) { | |
3356 | nlmsg_free(msg); | |
3357 | return; | |
3358 | } | |
3359 | ||
3360 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL); | |
3361 | ||
3362 | return; | |
3363 | ||
3364 | nla_put_failure: | |
3365 | genlmsg_cancel(msg, hdr); | |
3366 | nlmsg_free(msg); | |
3367 | } | |
3368 | ||
6039f6d2 JM |
3369 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
3370 | struct net_device *netdev, | |
3371 | const u8 *buf, size_t len, | |
3372 | enum nl80211_commands cmd) | |
3373 | { | |
3374 | struct sk_buff *msg; | |
3375 | void *hdr; | |
3376 | ||
d91c01c7 | 3377 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); |
6039f6d2 JM |
3378 | if (!msg) |
3379 | return; | |
3380 | ||
3381 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
3382 | if (!hdr) { | |
3383 | nlmsg_free(msg); | |
3384 | return; | |
3385 | } | |
3386 | ||
3387 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3388 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
3389 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
3390 | ||
3391 | if (genlmsg_end(msg, hdr) < 0) { | |
3392 | nlmsg_free(msg); | |
3393 | return; | |
3394 | } | |
3395 | ||
d91c01c7 | 3396 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_ATOMIC); |
6039f6d2 JM |
3397 | return; |
3398 | ||
3399 | nla_put_failure: | |
3400 | genlmsg_cancel(msg, hdr); | |
3401 | nlmsg_free(msg); | |
3402 | } | |
3403 | ||
3404 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
3405 | struct net_device *netdev, const u8 *buf, size_t len) | |
3406 | { | |
3407 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3408 | NL80211_CMD_AUTHENTICATE); | |
3409 | } | |
3410 | ||
3411 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
3412 | struct net_device *netdev, const u8 *buf, | |
3413 | size_t len) | |
3414 | { | |
3415 | nl80211_send_mlme_event(rdev, netdev, buf, len, NL80211_CMD_ASSOCIATE); | |
3416 | } | |
3417 | ||
3418 | void nl80211_send_rx_deauth(struct cfg80211_registered_device *rdev, | |
3419 | struct net_device *netdev, const u8 *buf, | |
3420 | size_t len) | |
3421 | { | |
3422 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3423 | NL80211_CMD_DEAUTHENTICATE); | |
3424 | } | |
3425 | ||
3426 | void nl80211_send_rx_disassoc(struct cfg80211_registered_device *rdev, | |
3427 | struct net_device *netdev, const u8 *buf, | |
3428 | size_t len) | |
3429 | { | |
3430 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
3431 | NL80211_CMD_DISASSOCIATE); | |
3432 | } | |
3433 | ||
55682965 JB |
3434 | /* initialisation/exit functions */ |
3435 | ||
3436 | int nl80211_init(void) | |
3437 | { | |
3438 | int err, i; | |
3439 | ||
3440 | err = genl_register_family(&nl80211_fam); | |
3441 | if (err) | |
3442 | return err; | |
3443 | ||
3444 | for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) { | |
3445 | err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]); | |
3446 | if (err) | |
3447 | goto err_out; | |
3448 | } | |
3449 | ||
3450 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); | |
3451 | if (err) | |
3452 | goto err_out; | |
3453 | ||
2a519311 JB |
3454 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
3455 | if (err) | |
3456 | goto err_out; | |
3457 | ||
73d54c9e LR |
3458 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
3459 | if (err) | |
3460 | goto err_out; | |
3461 | ||
6039f6d2 JM |
3462 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
3463 | if (err) | |
3464 | goto err_out; | |
3465 | ||
55682965 JB |
3466 | return 0; |
3467 | err_out: | |
3468 | genl_unregister_family(&nl80211_fam); | |
3469 | return err; | |
3470 | } | |
3471 | ||
3472 | void nl80211_exit(void) | |
3473 | { | |
3474 | genl_unregister_family(&nl80211_fam); | |
3475 | } |