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Commit | Line | Data |
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55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
08645126 | 4 | * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
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 | ||
79c97e97 JB |
32 | /* internal helper: get rdev and dev */ |
33 | static int get_rdev_dev_by_info_ifindex(struct nlattr **attrs, | |
34 | struct cfg80211_registered_device **rdev, | |
55682965 JB |
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 | ||
79c97e97 JB |
47 | *rdev = cfg80211_get_dev_from_ifindex(ifindex); |
48 | if (IS_ERR(*rdev)) { | |
55682965 | 49 | dev_put(*dev); |
79c97e97 | 50 | return PTR_ERR(*rdev); |
55682965 JB |
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, | |
079e24ed | 60 | .len = 20-1 }, |
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 }, |
b9a5f8ca JM |
64 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
65 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
66 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
67 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
55682965 JB |
68 | |
69 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
70 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
71 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
72 | |
73 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 74 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 75 | |
b9454e83 | 76 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
77 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
78 | .len = WLAN_MAX_KEY_LEN }, | |
79 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
80 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
81 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 82 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
83 | |
84 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
85 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
86 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
87 | .len = IEEE80211_MAX_DATA_LEN }, | |
88 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
89 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
90 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
91 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
92 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
93 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
94 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 95 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 96 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 97 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
98 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
99 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
100 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 101 | |
b2e1b302 LR |
102 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
103 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
104 | ||
9f1ba906 JM |
105 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
106 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
107 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
108 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
109 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 110 | |
93da9cc1 | 111 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
112 | ||
36aedc90 JM |
113 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
114 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
115 | |
116 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
117 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
118 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
119 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
120 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
121 | |
122 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
123 | .len = IEEE80211_MAX_SSID_LEN }, | |
124 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
125 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 126 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 127 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 128 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
129 | [NL80211_ATTR_STA_FLAGS2] = { |
130 | .len = sizeof(struct nl80211_sta_flag_update), | |
131 | }, | |
3f77316c | 132 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
b23aa676 SO |
133 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
134 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
135 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
55682965 JB |
136 | }; |
137 | ||
b9454e83 JB |
138 | /* policy for the attributes */ |
139 | static struct nla_policy | |
140 | nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = { | |
fffd0934 | 141 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
142 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
143 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
144 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
145 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
146 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
147 | }; | |
148 | ||
f4a11bb0 JB |
149 | /* IE validation */ |
150 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
151 | { | |
152 | const u8 *pos; | |
153 | int len; | |
154 | ||
155 | if (!attr) | |
156 | return true; | |
157 | ||
158 | pos = nla_data(attr); | |
159 | len = nla_len(attr); | |
160 | ||
161 | while (len) { | |
162 | u8 elemlen; | |
163 | ||
164 | if (len < 2) | |
165 | return false; | |
166 | len -= 2; | |
167 | ||
168 | elemlen = pos[1]; | |
169 | if (elemlen > len) | |
170 | return false; | |
171 | ||
172 | len -= elemlen; | |
173 | pos += 2 + elemlen; | |
174 | } | |
175 | ||
176 | return true; | |
177 | } | |
178 | ||
55682965 JB |
179 | /* message building helper */ |
180 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
181 | int flags, u8 cmd) | |
182 | { | |
183 | /* since there is no private header just add the generic one */ | |
184 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
185 | } | |
186 | ||
5dab3b8a LR |
187 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
188 | struct ieee80211_channel *chan) | |
189 | { | |
190 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
191 | chan->center_freq); | |
192 | ||
193 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
194 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
195 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
196 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
197 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
198 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
199 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
200 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
201 | ||
202 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
203 | DBM_TO_MBM(chan->max_power)); | |
204 | ||
205 | return 0; | |
206 | ||
207 | nla_put_failure: | |
208 | return -ENOBUFS; | |
209 | } | |
210 | ||
55682965 JB |
211 | /* netlink command implementations */ |
212 | ||
b9454e83 JB |
213 | struct key_parse { |
214 | struct key_params p; | |
215 | int idx; | |
216 | bool def, defmgmt; | |
217 | }; | |
218 | ||
219 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
220 | { | |
221 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
222 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
223 | nl80211_key_policy); | |
224 | if (err) | |
225 | return err; | |
226 | ||
227 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
228 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
229 | ||
230 | if (tb[NL80211_KEY_IDX]) | |
231 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
232 | ||
233 | if (tb[NL80211_KEY_DATA]) { | |
234 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
235 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
236 | } | |
237 | ||
238 | if (tb[NL80211_KEY_SEQ]) { | |
239 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
240 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
241 | } | |
242 | ||
243 | if (tb[NL80211_KEY_CIPHER]) | |
244 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
249 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
250 | { | |
251 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
252 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
253 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
254 | } | |
255 | ||
256 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
257 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
258 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
259 | } | |
260 | ||
261 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
262 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
263 | ||
264 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
265 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
266 | ||
267 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
268 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
269 | ||
270 | return 0; | |
271 | } | |
272 | ||
273 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
274 | { | |
275 | int err; | |
276 | ||
277 | memset(k, 0, sizeof(*k)); | |
278 | k->idx = -1; | |
279 | ||
280 | if (info->attrs[NL80211_ATTR_KEY]) | |
281 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
282 | else | |
283 | err = nl80211_parse_key_old(info, k); | |
284 | ||
285 | if (err) | |
286 | return err; | |
287 | ||
288 | if (k->def && k->defmgmt) | |
289 | return -EINVAL; | |
290 | ||
291 | if (k->idx != -1) { | |
292 | if (k->defmgmt) { | |
293 | if (k->idx < 4 || k->idx > 5) | |
294 | return -EINVAL; | |
295 | } else if (k->def) { | |
296 | if (k->idx < 0 || k->idx > 3) | |
297 | return -EINVAL; | |
298 | } else { | |
299 | if (k->idx < 0 || k->idx > 5) | |
300 | return -EINVAL; | |
301 | } | |
302 | } | |
303 | ||
304 | return 0; | |
305 | } | |
306 | ||
fffd0934 JB |
307 | static struct cfg80211_cached_keys * |
308 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
309 | struct nlattr *keys) | |
310 | { | |
311 | struct key_parse parse; | |
312 | struct nlattr *key; | |
313 | struct cfg80211_cached_keys *result; | |
314 | int rem, err, def = 0; | |
315 | ||
316 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
317 | if (!result) | |
318 | return ERR_PTR(-ENOMEM); | |
319 | ||
320 | result->def = -1; | |
321 | result->defmgmt = -1; | |
322 | ||
323 | nla_for_each_nested(key, keys, rem) { | |
324 | memset(&parse, 0, sizeof(parse)); | |
325 | parse.idx = -1; | |
326 | ||
327 | err = nl80211_parse_key_new(key, &parse); | |
328 | if (err) | |
329 | goto error; | |
330 | err = -EINVAL; | |
331 | if (!parse.p.key) | |
332 | goto error; | |
333 | if (parse.idx < 0 || parse.idx > 4) | |
334 | goto error; | |
335 | if (parse.def) { | |
336 | if (def) | |
337 | goto error; | |
338 | def = 1; | |
339 | result->def = parse.idx; | |
340 | } else if (parse.defmgmt) | |
341 | goto error; | |
342 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
343 | parse.idx, NULL); | |
344 | if (err) | |
345 | goto error; | |
346 | result->params[parse.idx].cipher = parse.p.cipher; | |
347 | result->params[parse.idx].key_len = parse.p.key_len; | |
348 | result->params[parse.idx].key = result->data[parse.idx]; | |
349 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
350 | } | |
351 | ||
352 | return result; | |
353 | error: | |
354 | kfree(result); | |
355 | return ERR_PTR(err); | |
356 | } | |
357 | ||
358 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
359 | { | |
360 | ASSERT_WDEV_LOCK(wdev); | |
361 | ||
362 | if (!netif_running(wdev->netdev)) | |
363 | return -ENETDOWN; | |
364 | ||
365 | switch (wdev->iftype) { | |
366 | case NL80211_IFTYPE_AP: | |
367 | case NL80211_IFTYPE_AP_VLAN: | |
368 | break; | |
369 | case NL80211_IFTYPE_ADHOC: | |
370 | if (!wdev->current_bss) | |
371 | return -ENOLINK; | |
372 | break; | |
373 | case NL80211_IFTYPE_STATION: | |
374 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
375 | return -ENOLINK; | |
376 | break; | |
377 | default: | |
378 | return -EINVAL; | |
379 | } | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
55682965 JB |
384 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
385 | struct cfg80211_registered_device *dev) | |
386 | { | |
387 | void *hdr; | |
ee688b00 JB |
388 | struct nlattr *nl_bands, *nl_band; |
389 | struct nlattr *nl_freqs, *nl_freq; | |
390 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 391 | struct nlattr *nl_modes; |
8fdc621d | 392 | struct nlattr *nl_cmds; |
ee688b00 JB |
393 | enum ieee80211_band band; |
394 | struct ieee80211_channel *chan; | |
395 | struct ieee80211_rate *rate; | |
396 | int i; | |
f59ac048 | 397 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
398 | |
399 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
400 | if (!hdr) | |
401 | return -1; | |
402 | ||
b5850a7a | 403 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 404 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca JM |
405 | |
406 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, | |
407 | dev->wiphy.retry_short); | |
408 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
409 | dev->wiphy.retry_long); | |
410 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
411 | dev->wiphy.frag_threshold); | |
412 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
413 | dev->wiphy.rts_threshold); | |
414 | ||
2a519311 JB |
415 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
416 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
417 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
418 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 419 | |
25e47c18 JB |
420 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
421 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
422 | dev->wiphy.cipher_suites); | |
423 | ||
f59ac048 LR |
424 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
425 | if (!nl_modes) | |
426 | goto nla_put_failure; | |
427 | ||
428 | i = 0; | |
429 | while (ifmodes) { | |
430 | if (ifmodes & 1) | |
431 | NLA_PUT_FLAG(msg, i); | |
432 | ifmodes >>= 1; | |
433 | i++; | |
434 | } | |
435 | ||
436 | nla_nest_end(msg, nl_modes); | |
437 | ||
ee688b00 JB |
438 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
439 | if (!nl_bands) | |
440 | goto nla_put_failure; | |
441 | ||
442 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
443 | if (!dev->wiphy.bands[band]) | |
444 | continue; | |
445 | ||
446 | nl_band = nla_nest_start(msg, band); | |
447 | if (!nl_band) | |
448 | goto nla_put_failure; | |
449 | ||
d51626df JB |
450 | /* add HT info */ |
451 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
452 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
453 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
454 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
455 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
456 | dev->wiphy.bands[band]->ht_cap.cap); | |
457 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
458 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
459 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
460 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
461 | } | |
462 | ||
ee688b00 JB |
463 | /* add frequencies */ |
464 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
465 | if (!nl_freqs) | |
466 | goto nla_put_failure; | |
467 | ||
468 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
469 | nl_freq = nla_nest_start(msg, i); | |
470 | if (!nl_freq) | |
471 | goto nla_put_failure; | |
472 | ||
473 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
474 | |
475 | if (nl80211_msg_put_channel(msg, chan)) | |
476 | goto nla_put_failure; | |
e2f367f2 | 477 | |
ee688b00 JB |
478 | nla_nest_end(msg, nl_freq); |
479 | } | |
480 | ||
481 | nla_nest_end(msg, nl_freqs); | |
482 | ||
483 | /* add bitrates */ | |
484 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
485 | if (!nl_rates) | |
486 | goto nla_put_failure; | |
487 | ||
488 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
489 | nl_rate = nla_nest_start(msg, i); | |
490 | if (!nl_rate) | |
491 | goto nla_put_failure; | |
492 | ||
493 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
494 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
495 | rate->bitrate); | |
496 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
497 | NLA_PUT_FLAG(msg, | |
498 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
499 | ||
500 | nla_nest_end(msg, nl_rate); | |
501 | } | |
502 | ||
503 | nla_nest_end(msg, nl_rates); | |
504 | ||
505 | nla_nest_end(msg, nl_band); | |
506 | } | |
507 | nla_nest_end(msg, nl_bands); | |
508 | ||
8fdc621d JB |
509 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
510 | if (!nl_cmds) | |
511 | goto nla_put_failure; | |
512 | ||
513 | i = 0; | |
514 | #define CMD(op, n) \ | |
515 | do { \ | |
516 | if (dev->ops->op) { \ | |
517 | i++; \ | |
518 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
519 | } \ | |
520 | } while (0) | |
521 | ||
522 | CMD(add_virtual_intf, NEW_INTERFACE); | |
523 | CMD(change_virtual_intf, SET_INTERFACE); | |
524 | CMD(add_key, NEW_KEY); | |
525 | CMD(add_beacon, NEW_BEACON); | |
526 | CMD(add_station, NEW_STATION); | |
527 | CMD(add_mpath, NEW_MPATH); | |
528 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
529 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
530 | CMD(auth, AUTHENTICATE); |
531 | CMD(assoc, ASSOCIATE); | |
532 | CMD(deauth, DEAUTHENTICATE); | |
533 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 534 | CMD(join_ibss, JOIN_IBSS); |
8fdc621d JB |
535 | |
536 | #undef CMD | |
b23aa676 | 537 | |
6829c878 | 538 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
539 | i++; |
540 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
541 | } | |
542 | ||
6829c878 | 543 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
544 | i++; |
545 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
546 | } | |
547 | ||
8fdc621d JB |
548 | nla_nest_end(msg, nl_cmds); |
549 | ||
55682965 JB |
550 | return genlmsg_end(msg, hdr); |
551 | ||
552 | nla_put_failure: | |
bc3ed28c TG |
553 | genlmsg_cancel(msg, hdr); |
554 | return -EMSGSIZE; | |
55682965 JB |
555 | } |
556 | ||
557 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
558 | { | |
559 | int idx = 0; | |
560 | int start = cb->args[0]; | |
561 | struct cfg80211_registered_device *dev; | |
562 | ||
a1794390 | 563 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 564 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
b4637271 | 565 | if (++idx <= start) |
55682965 JB |
566 | continue; |
567 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
568 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
569 | dev) < 0) { |
570 | idx--; | |
55682965 | 571 | break; |
b4637271 | 572 | } |
55682965 | 573 | } |
a1794390 | 574 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
575 | |
576 | cb->args[0] = idx; | |
577 | ||
578 | return skb->len; | |
579 | } | |
580 | ||
581 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
582 | { | |
583 | struct sk_buff *msg; | |
584 | struct cfg80211_registered_device *dev; | |
585 | ||
586 | dev = cfg80211_get_dev_from_info(info); | |
587 | if (IS_ERR(dev)) | |
588 | return PTR_ERR(dev); | |
589 | ||
fd2120ca | 590 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
591 | if (!msg) |
592 | goto out_err; | |
593 | ||
594 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
595 | goto out_free; | |
596 | ||
4d0c8aea | 597 | cfg80211_unlock_rdev(dev); |
55682965 | 598 | |
134e6375 | 599 | return genlmsg_reply(msg, info); |
55682965 JB |
600 | |
601 | out_free: | |
602 | nlmsg_free(msg); | |
603 | out_err: | |
4d0c8aea | 604 | cfg80211_unlock_rdev(dev); |
55682965 JB |
605 | return -ENOBUFS; |
606 | } | |
607 | ||
31888487 JM |
608 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
609 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
610 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
611 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
612 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
613 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
614 | }; | |
615 | ||
616 | static int parse_txq_params(struct nlattr *tb[], | |
617 | struct ieee80211_txq_params *txq_params) | |
618 | { | |
619 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
620 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
621 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
622 | return -EINVAL; | |
623 | ||
624 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
625 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
626 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
627 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
628 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
629 | ||
630 | return 0; | |
631 | } | |
632 | ||
55682965 JB |
633 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
634 | { | |
635 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
636 | int result = 0, rem_txq_params = 0; |
637 | struct nlattr *nl_txq_params; | |
b9a5f8ca JM |
638 | u32 changed; |
639 | u8 retry_short = 0, retry_long = 0; | |
640 | u32 frag_threshold = 0, rts_threshold = 0; | |
55682965 | 641 | |
4bbf4d56 | 642 | rtnl_lock(); |
55682965 | 643 | |
4bbf4d56 JB |
644 | mutex_lock(&cfg80211_mutex); |
645 | ||
79c97e97 | 646 | rdev = __cfg80211_rdev_from_info(info); |
4bbf4d56 | 647 | if (IS_ERR(rdev)) { |
1f5fc70a | 648 | mutex_unlock(&cfg80211_mutex); |
4bbf4d56 JB |
649 | result = PTR_ERR(rdev); |
650 | goto unlock; | |
651 | } | |
652 | ||
653 | mutex_lock(&rdev->mtx); | |
654 | ||
655 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
656 | result = cfg80211_dev_rename( |
657 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
658 | |
659 | mutex_unlock(&cfg80211_mutex); | |
660 | ||
661 | if (result) | |
662 | goto bad_res; | |
31888487 JM |
663 | |
664 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
665 | struct ieee80211_txq_params txq_params; | |
666 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
667 | ||
668 | if (!rdev->ops->set_txq_params) { | |
669 | result = -EOPNOTSUPP; | |
670 | goto bad_res; | |
671 | } | |
672 | ||
673 | nla_for_each_nested(nl_txq_params, | |
674 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
675 | rem_txq_params) { | |
676 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
677 | nla_data(nl_txq_params), | |
678 | nla_len(nl_txq_params), | |
679 | txq_params_policy); | |
680 | result = parse_txq_params(tb, &txq_params); | |
681 | if (result) | |
682 | goto bad_res; | |
683 | ||
684 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
685 | &txq_params); | |
686 | if (result) | |
687 | goto bad_res; | |
688 | } | |
689 | } | |
55682965 | 690 | |
72bdcf34 | 691 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 692 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
72bdcf34 | 693 | struct ieee80211_channel *chan; |
306d6112 | 694 | struct ieee80211_sta_ht_cap *ht_cap; |
294196ab | 695 | u32 freq; |
72bdcf34 JM |
696 | |
697 | if (!rdev->ops->set_channel) { | |
698 | result = -EOPNOTSUPP; | |
699 | goto bad_res; | |
700 | } | |
701 | ||
306d6112 JB |
702 | result = -EINVAL; |
703 | ||
094d05dc S |
704 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
705 | channel_type = nla_get_u32(info->attrs[ | |
706 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
707 | if (channel_type != NL80211_CHAN_NO_HT && | |
708 | channel_type != NL80211_CHAN_HT20 && | |
709 | channel_type != NL80211_CHAN_HT40PLUS && | |
710 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 711 | goto bad_res; |
72bdcf34 JM |
712 | } |
713 | ||
714 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
715 | chan = ieee80211_get_channel(&rdev->wiphy, freq); | |
306d6112 JB |
716 | |
717 | /* Primary channel not allowed */ | |
718 | if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) | |
72bdcf34 | 719 | goto bad_res; |
306d6112 | 720 | |
294196ab LR |
721 | if (channel_type == NL80211_CHAN_HT40MINUS && |
722 | (chan->flags & IEEE80211_CHAN_NO_HT40MINUS)) | |
306d6112 | 723 | goto bad_res; |
294196ab LR |
724 | else if (channel_type == NL80211_CHAN_HT40PLUS && |
725 | (chan->flags & IEEE80211_CHAN_NO_HT40PLUS)) | |
306d6112 JB |
726 | goto bad_res; |
727 | ||
294196ab LR |
728 | /* |
729 | * At this point we know if that if HT40 was requested | |
730 | * we are allowed to use it and the extension channel | |
731 | * exists. | |
732 | */ | |
306d6112 | 733 | |
294196ab | 734 | ht_cap = &rdev->wiphy.bands[chan->band]->ht_cap; |
306d6112 | 735 | |
294196ab LR |
736 | /* no HT capabilities or intolerant */ |
737 | if (channel_type != NL80211_CHAN_NO_HT) { | |
738 | if (!ht_cap->ht_supported) | |
739 | goto bad_res; | |
306d6112 JB |
740 | if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || |
741 | (ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)) | |
742 | goto bad_res; | |
72bdcf34 JM |
743 | } |
744 | ||
745 | result = rdev->ops->set_channel(&rdev->wiphy, chan, | |
094d05dc | 746 | channel_type); |
72bdcf34 JM |
747 | if (result) |
748 | goto bad_res; | |
749 | } | |
750 | ||
b9a5f8ca JM |
751 | changed = 0; |
752 | ||
753 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
754 | retry_short = nla_get_u8( | |
755 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
756 | if (retry_short == 0) { | |
757 | result = -EINVAL; | |
758 | goto bad_res; | |
759 | } | |
760 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
761 | } | |
762 | ||
763 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
764 | retry_long = nla_get_u8( | |
765 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
766 | if (retry_long == 0) { | |
767 | result = -EINVAL; | |
768 | goto bad_res; | |
769 | } | |
770 | changed |= WIPHY_PARAM_RETRY_LONG; | |
771 | } | |
772 | ||
773 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
774 | frag_threshold = nla_get_u32( | |
775 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
776 | if (frag_threshold < 256) { | |
777 | result = -EINVAL; | |
778 | goto bad_res; | |
779 | } | |
780 | if (frag_threshold != (u32) -1) { | |
781 | /* | |
782 | * Fragments (apart from the last one) are required to | |
783 | * have even length. Make the fragmentation code | |
784 | * simpler by stripping LSB should someone try to use | |
785 | * odd threshold value. | |
786 | */ | |
787 | frag_threshold &= ~0x1; | |
788 | } | |
789 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
790 | } | |
791 | ||
792 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
793 | rts_threshold = nla_get_u32( | |
794 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
795 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
796 | } | |
797 | ||
798 | if (changed) { | |
799 | u8 old_retry_short, old_retry_long; | |
800 | u32 old_frag_threshold, old_rts_threshold; | |
801 | ||
802 | if (!rdev->ops->set_wiphy_params) { | |
803 | result = -EOPNOTSUPP; | |
804 | goto bad_res; | |
805 | } | |
806 | ||
807 | old_retry_short = rdev->wiphy.retry_short; | |
808 | old_retry_long = rdev->wiphy.retry_long; | |
809 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
810 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
811 | ||
812 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
813 | rdev->wiphy.retry_short = retry_short; | |
814 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
815 | rdev->wiphy.retry_long = retry_long; | |
816 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
817 | rdev->wiphy.frag_threshold = frag_threshold; | |
818 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
819 | rdev->wiphy.rts_threshold = rts_threshold; | |
820 | ||
821 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
822 | if (result) { | |
823 | rdev->wiphy.retry_short = old_retry_short; | |
824 | rdev->wiphy.retry_long = old_retry_long; | |
825 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
826 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
827 | } | |
828 | } | |
72bdcf34 | 829 | |
306d6112 | 830 | bad_res: |
4bbf4d56 JB |
831 | mutex_unlock(&rdev->mtx); |
832 | unlock: | |
833 | rtnl_unlock(); | |
55682965 JB |
834 | return result; |
835 | } | |
836 | ||
837 | ||
838 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 839 | struct cfg80211_registered_device *rdev, |
55682965 JB |
840 | struct net_device *dev) |
841 | { | |
842 | void *hdr; | |
843 | ||
844 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
845 | if (!hdr) | |
846 | return -1; | |
847 | ||
848 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 849 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 850 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 851 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
55682965 JB |
852 | return genlmsg_end(msg, hdr); |
853 | ||
854 | nla_put_failure: | |
bc3ed28c TG |
855 | genlmsg_cancel(msg, hdr); |
856 | return -EMSGSIZE; | |
55682965 JB |
857 | } |
858 | ||
859 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
860 | { | |
861 | int wp_idx = 0; | |
862 | int if_idx = 0; | |
863 | int wp_start = cb->args[0]; | |
864 | int if_start = cb->args[1]; | |
865 | struct cfg80211_registered_device *dev; | |
866 | struct wireless_dev *wdev; | |
867 | ||
a1794390 | 868 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 869 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
bba95fef JB |
870 | if (wp_idx < wp_start) { |
871 | wp_idx++; | |
55682965 | 872 | continue; |
bba95fef | 873 | } |
55682965 JB |
874 | if_idx = 0; |
875 | ||
876 | mutex_lock(&dev->devlist_mtx); | |
877 | list_for_each_entry(wdev, &dev->netdev_list, list) { | |
bba95fef JB |
878 | if (if_idx < if_start) { |
879 | if_idx++; | |
55682965 | 880 | continue; |
bba95fef | 881 | } |
55682965 JB |
882 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
883 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
d726405a | 884 | dev, wdev->netdev) < 0) { |
bba95fef JB |
885 | mutex_unlock(&dev->devlist_mtx); |
886 | goto out; | |
887 | } | |
888 | if_idx++; | |
55682965 JB |
889 | } |
890 | mutex_unlock(&dev->devlist_mtx); | |
bba95fef JB |
891 | |
892 | wp_idx++; | |
55682965 | 893 | } |
bba95fef | 894 | out: |
a1794390 | 895 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
896 | |
897 | cb->args[0] = wp_idx; | |
898 | cb->args[1] = if_idx; | |
899 | ||
900 | return skb->len; | |
901 | } | |
902 | ||
903 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
904 | { | |
905 | struct sk_buff *msg; | |
906 | struct cfg80211_registered_device *dev; | |
907 | struct net_device *netdev; | |
908 | int err; | |
909 | ||
79c97e97 | 910 | err = get_rdev_dev_by_info_ifindex(info->attrs, &dev, &netdev); |
55682965 JB |
911 | if (err) |
912 | return err; | |
913 | ||
fd2120ca | 914 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
915 | if (!msg) |
916 | goto out_err; | |
917 | ||
d726405a JB |
918 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
919 | dev, netdev) < 0) | |
55682965 JB |
920 | goto out_free; |
921 | ||
922 | dev_put(netdev); | |
4d0c8aea | 923 | cfg80211_unlock_rdev(dev); |
55682965 | 924 | |
134e6375 | 925 | return genlmsg_reply(msg, info); |
55682965 JB |
926 | |
927 | out_free: | |
928 | nlmsg_free(msg); | |
929 | out_err: | |
930 | dev_put(netdev); | |
4d0c8aea | 931 | cfg80211_unlock_rdev(dev); |
55682965 JB |
932 | return -ENOBUFS; |
933 | } | |
934 | ||
66f7ac50 MW |
935 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
936 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
937 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
938 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
939 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
940 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
941 | }; | |
942 | ||
943 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
944 | { | |
945 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
946 | int flag; | |
947 | ||
948 | *mntrflags = 0; | |
949 | ||
950 | if (!nla) | |
951 | return -EINVAL; | |
952 | ||
953 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
954 | nla, mntr_flags_policy)) | |
955 | return -EINVAL; | |
956 | ||
957 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
958 | if (flags[flag]) | |
959 | *mntrflags |= (1<<flag); | |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
55682965 JB |
964 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
965 | { | |
79c97e97 | 966 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 967 | struct vif_params params; |
e36d56b6 | 968 | int err; |
04a773ad | 969 | enum nl80211_iftype otype, ntype; |
55682965 | 970 | struct net_device *dev; |
92ffe055 | 971 | u32 _flags, *flags = NULL; |
ac7f9cfa | 972 | bool change = false; |
55682965 | 973 | |
2ec600d6 LCC |
974 | memset(¶ms, 0, sizeof(params)); |
975 | ||
3b85875a JB |
976 | rtnl_lock(); |
977 | ||
79c97e97 | 978 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
55682965 | 979 | if (err) |
3b85875a JB |
980 | goto unlock_rtnl; |
981 | ||
04a773ad | 982 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 983 | |
723b038d | 984 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 985 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 986 | if (otype != ntype) |
ac7f9cfa | 987 | change = true; |
04a773ad | 988 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 989 | err = -EINVAL; |
723b038d | 990 | goto unlock; |
ac7f9cfa | 991 | } |
723b038d JB |
992 | } |
993 | ||
79c97e97 JB |
994 | if (!rdev->ops->change_virtual_intf || |
995 | !(rdev->wiphy.interface_modes & (1 << ntype))) { | |
55682965 JB |
996 | err = -EOPNOTSUPP; |
997 | goto unlock; | |
998 | } | |
999 | ||
92ffe055 | 1000 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1001 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1002 | err = -EINVAL; |
1003 | goto unlock; | |
1004 | } | |
2ec600d6 LCC |
1005 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1006 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1007 | change = true; |
2ec600d6 LCC |
1008 | } |
1009 | ||
92ffe055 | 1010 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1011 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1012 | err = -EINVAL; |
1013 | goto unlock; | |
1014 | } | |
1015 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1016 | &_flags); | |
ac7f9cfa JB |
1017 | if (err) |
1018 | goto unlock; | |
1019 | ||
1020 | flags = &_flags; | |
1021 | change = true; | |
92ffe055 | 1022 | } |
3b85875a | 1023 | |
ac7f9cfa | 1024 | if (change) |
79c97e97 | 1025 | err = rdev->ops->change_virtual_intf(&rdev->wiphy, dev, |
04a773ad | 1026 | ntype, flags, ¶ms); |
ac7f9cfa JB |
1027 | else |
1028 | err = 0; | |
60719ffd | 1029 | |
e36d56b6 | 1030 | WARN_ON(!err && dev->ieee80211_ptr->iftype != ntype); |
04a773ad | 1031 | |
e36d56b6 | 1032 | if (!err && (ntype != otype)) { |
04a773ad | 1033 | if (otype == NL80211_IFTYPE_ADHOC) |
9d308429 | 1034 | cfg80211_clear_ibss(dev, false); |
04a773ad | 1035 | } |
60719ffd | 1036 | |
55682965 | 1037 | unlock: |
e36d56b6 | 1038 | dev_put(dev); |
79c97e97 | 1039 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1040 | unlock_rtnl: |
1041 | rtnl_unlock(); | |
55682965 JB |
1042 | return err; |
1043 | } | |
1044 | ||
1045 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1046 | { | |
79c97e97 | 1047 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1048 | struct vif_params params; |
55682965 JB |
1049 | int err; |
1050 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1051 | u32 flags; |
55682965 | 1052 | |
2ec600d6 LCC |
1053 | memset(¶ms, 0, sizeof(params)); |
1054 | ||
55682965 JB |
1055 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1056 | return -EINVAL; | |
1057 | ||
1058 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1059 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1060 | if (type > NL80211_IFTYPE_MAX) | |
1061 | return -EINVAL; | |
1062 | } | |
1063 | ||
3b85875a JB |
1064 | rtnl_lock(); |
1065 | ||
79c97e97 JB |
1066 | rdev = cfg80211_get_dev_from_info(info); |
1067 | if (IS_ERR(rdev)) { | |
1068 | err = PTR_ERR(rdev); | |
3b85875a JB |
1069 | goto unlock_rtnl; |
1070 | } | |
55682965 | 1071 | |
79c97e97 JB |
1072 | if (!rdev->ops->add_virtual_intf || |
1073 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1074 | err = -EOPNOTSUPP; |
1075 | goto unlock; | |
1076 | } | |
1077 | ||
2ec600d6 LCC |
1078 | if (type == NL80211_IFTYPE_MESH_POINT && |
1079 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1080 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1081 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1082 | } | |
1083 | ||
66f7ac50 MW |
1084 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1085 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1086 | &flags); | |
79c97e97 | 1087 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1088 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1089 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1090 | |
55682965 | 1091 | unlock: |
79c97e97 | 1092 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1093 | unlock_rtnl: |
1094 | rtnl_unlock(); | |
55682965 JB |
1095 | return err; |
1096 | } | |
1097 | ||
1098 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1099 | { | |
79c97e97 | 1100 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1101 | int ifindex, err; |
1102 | struct net_device *dev; | |
1103 | ||
3b85875a JB |
1104 | rtnl_lock(); |
1105 | ||
79c97e97 | 1106 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
55682965 | 1107 | if (err) |
3b85875a | 1108 | goto unlock_rtnl; |
55682965 JB |
1109 | ifindex = dev->ifindex; |
1110 | dev_put(dev); | |
1111 | ||
79c97e97 | 1112 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1113 | err = -EOPNOTSUPP; |
1114 | goto out; | |
1115 | } | |
1116 | ||
79c97e97 | 1117 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, ifindex); |
55682965 JB |
1118 | |
1119 | out: | |
79c97e97 | 1120 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1121 | unlock_rtnl: |
1122 | rtnl_unlock(); | |
55682965 JB |
1123 | return err; |
1124 | } | |
1125 | ||
41ade00f JB |
1126 | struct get_key_cookie { |
1127 | struct sk_buff *msg; | |
1128 | int error; | |
b9454e83 | 1129 | int idx; |
41ade00f JB |
1130 | }; |
1131 | ||
1132 | static void get_key_callback(void *c, struct key_params *params) | |
1133 | { | |
b9454e83 | 1134 | struct nlattr *key; |
41ade00f JB |
1135 | struct get_key_cookie *cookie = c; |
1136 | ||
1137 | if (params->key) | |
1138 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1139 | params->key_len, params->key); | |
1140 | ||
1141 | if (params->seq) | |
1142 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1143 | params->seq_len, params->seq); | |
1144 | ||
1145 | if (params->cipher) | |
1146 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1147 | params->cipher); | |
1148 | ||
b9454e83 JB |
1149 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1150 | if (!key) | |
1151 | goto nla_put_failure; | |
1152 | ||
1153 | if (params->key) | |
1154 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1155 | params->key_len, params->key); | |
1156 | ||
1157 | if (params->seq) | |
1158 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1159 | params->seq_len, params->seq); | |
1160 | ||
1161 | if (params->cipher) | |
1162 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1163 | params->cipher); | |
1164 | ||
1165 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1166 | ||
1167 | nla_nest_end(cookie->msg, key); | |
1168 | ||
41ade00f JB |
1169 | return; |
1170 | nla_put_failure: | |
1171 | cookie->error = 1; | |
1172 | } | |
1173 | ||
1174 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1175 | { | |
79c97e97 | 1176 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1177 | int err; |
1178 | struct net_device *dev; | |
1179 | u8 key_idx = 0; | |
1180 | u8 *mac_addr = NULL; | |
1181 | struct get_key_cookie cookie = { | |
1182 | .error = 0, | |
1183 | }; | |
1184 | void *hdr; | |
1185 | struct sk_buff *msg; | |
1186 | ||
1187 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1188 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1189 | ||
3cfcf6ac | 1190 | if (key_idx > 5) |
41ade00f JB |
1191 | return -EINVAL; |
1192 | ||
1193 | if (info->attrs[NL80211_ATTR_MAC]) | |
1194 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1195 | ||
3b85875a JB |
1196 | rtnl_lock(); |
1197 | ||
79c97e97 | 1198 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
41ade00f | 1199 | if (err) |
3b85875a | 1200 | goto unlock_rtnl; |
41ade00f | 1201 | |
79c97e97 | 1202 | if (!rdev->ops->get_key) { |
41ade00f JB |
1203 | err = -EOPNOTSUPP; |
1204 | goto out; | |
1205 | } | |
1206 | ||
fd2120ca | 1207 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1208 | if (!msg) { |
1209 | err = -ENOMEM; | |
1210 | goto out; | |
1211 | } | |
1212 | ||
1213 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1214 | NL80211_CMD_NEW_KEY); | |
1215 | ||
1216 | if (IS_ERR(hdr)) { | |
1217 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1218 | goto free_msg; |
41ade00f JB |
1219 | } |
1220 | ||
1221 | cookie.msg = msg; | |
b9454e83 | 1222 | cookie.idx = key_idx; |
41ade00f JB |
1223 | |
1224 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1225 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1226 | if (mac_addr) | |
1227 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1228 | ||
79c97e97 | 1229 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1230 | &cookie, get_key_callback); |
41ade00f JB |
1231 | |
1232 | if (err) | |
6c95e2a2 | 1233 | goto free_msg; |
41ade00f JB |
1234 | |
1235 | if (cookie.error) | |
1236 | goto nla_put_failure; | |
1237 | ||
1238 | genlmsg_end(msg, hdr); | |
134e6375 | 1239 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1240 | goto out; |
1241 | ||
1242 | nla_put_failure: | |
1243 | err = -ENOBUFS; | |
6c95e2a2 | 1244 | free_msg: |
41ade00f JB |
1245 | nlmsg_free(msg); |
1246 | out: | |
79c97e97 | 1247 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1248 | dev_put(dev); |
3b85875a JB |
1249 | unlock_rtnl: |
1250 | rtnl_unlock(); | |
1251 | ||
41ade00f JB |
1252 | return err; |
1253 | } | |
1254 | ||
1255 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1256 | { | |
79c97e97 | 1257 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1258 | struct key_parse key; |
41ade00f JB |
1259 | int err; |
1260 | struct net_device *dev; | |
3cfcf6ac JM |
1261 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1262 | u8 key_index); | |
41ade00f | 1263 | |
b9454e83 JB |
1264 | err = nl80211_parse_key(info, &key); |
1265 | if (err) | |
1266 | return err; | |
41ade00f | 1267 | |
b9454e83 | 1268 | if (key.idx < 0) |
41ade00f JB |
1269 | return -EINVAL; |
1270 | ||
b9454e83 JB |
1271 | /* only support setting default key */ |
1272 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1273 | return -EINVAL; |
1274 | ||
3b85875a JB |
1275 | rtnl_lock(); |
1276 | ||
79c97e97 | 1277 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
41ade00f | 1278 | if (err) |
3b85875a | 1279 | goto unlock_rtnl; |
41ade00f | 1280 | |
b9454e83 | 1281 | if (key.def) |
79c97e97 | 1282 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1283 | else |
79c97e97 | 1284 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1285 | |
1286 | if (!func) { | |
41ade00f JB |
1287 | err = -EOPNOTSUPP; |
1288 | goto out; | |
1289 | } | |
1290 | ||
fffd0934 JB |
1291 | wdev_lock(dev->ieee80211_ptr); |
1292 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1293 | if (!err) | |
1294 | err = func(&rdev->wiphy, dev, key.idx); | |
1295 | ||
08645126 JB |
1296 | #ifdef CONFIG_WIRELESS_EXT |
1297 | if (!err) { | |
79c97e97 | 1298 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1299 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1300 | else |
b9454e83 | 1301 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1302 | } |
1303 | #endif | |
fffd0934 | 1304 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1305 | |
1306 | out: | |
79c97e97 | 1307 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1308 | dev_put(dev); |
3b85875a JB |
1309 | |
1310 | unlock_rtnl: | |
1311 | rtnl_unlock(); | |
1312 | ||
41ade00f JB |
1313 | return err; |
1314 | } | |
1315 | ||
1316 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1317 | { | |
79c97e97 | 1318 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1319 | int err; |
41ade00f | 1320 | struct net_device *dev; |
b9454e83 | 1321 | struct key_parse key; |
41ade00f JB |
1322 | u8 *mac_addr = NULL; |
1323 | ||
b9454e83 JB |
1324 | err = nl80211_parse_key(info, &key); |
1325 | if (err) | |
1326 | return err; | |
41ade00f | 1327 | |
b9454e83 | 1328 | if (!key.p.key) |
41ade00f JB |
1329 | return -EINVAL; |
1330 | ||
41ade00f JB |
1331 | if (info->attrs[NL80211_ATTR_MAC]) |
1332 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1333 | ||
3b85875a JB |
1334 | rtnl_lock(); |
1335 | ||
79c97e97 | 1336 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
41ade00f | 1337 | if (err) |
3b85875a | 1338 | goto unlock_rtnl; |
41ade00f | 1339 | |
fffd0934 JB |
1340 | if (!rdev->ops->add_key) { |
1341 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1342 | goto out; |
1343 | } | |
1344 | ||
fffd0934 JB |
1345 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1346 | err = -EINVAL; | |
41ade00f JB |
1347 | goto out; |
1348 | } | |
1349 | ||
fffd0934 JB |
1350 | wdev_lock(dev->ieee80211_ptr); |
1351 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1352 | if (!err) | |
1353 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1354 | mac_addr, &key.p); | |
1355 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1356 | |
1357 | out: | |
79c97e97 | 1358 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1359 | dev_put(dev); |
3b85875a JB |
1360 | unlock_rtnl: |
1361 | rtnl_unlock(); | |
1362 | ||
41ade00f JB |
1363 | return err; |
1364 | } | |
1365 | ||
1366 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1367 | { | |
79c97e97 | 1368 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1369 | int err; |
1370 | struct net_device *dev; | |
41ade00f | 1371 | u8 *mac_addr = NULL; |
b9454e83 | 1372 | struct key_parse key; |
41ade00f | 1373 | |
b9454e83 JB |
1374 | err = nl80211_parse_key(info, &key); |
1375 | if (err) | |
1376 | return err; | |
41ade00f JB |
1377 | |
1378 | if (info->attrs[NL80211_ATTR_MAC]) | |
1379 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1380 | ||
3b85875a JB |
1381 | rtnl_lock(); |
1382 | ||
79c97e97 | 1383 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
41ade00f | 1384 | if (err) |
3b85875a | 1385 | goto unlock_rtnl; |
41ade00f | 1386 | |
79c97e97 | 1387 | if (!rdev->ops->del_key) { |
41ade00f JB |
1388 | err = -EOPNOTSUPP; |
1389 | goto out; | |
1390 | } | |
1391 | ||
fffd0934 JB |
1392 | wdev_lock(dev->ieee80211_ptr); |
1393 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1394 | if (!err) | |
1395 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1396 | |
08645126 JB |
1397 | #ifdef CONFIG_WIRELESS_EXT |
1398 | if (!err) { | |
b9454e83 | 1399 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1400 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1401 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1402 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1403 | } | |
1404 | #endif | |
fffd0934 | 1405 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1406 | |
41ade00f | 1407 | out: |
79c97e97 | 1408 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1409 | dev_put(dev); |
3b85875a JB |
1410 | |
1411 | unlock_rtnl: | |
1412 | rtnl_unlock(); | |
1413 | ||
41ade00f JB |
1414 | return err; |
1415 | } | |
1416 | ||
ed1b6cc7 JB |
1417 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1418 | { | |
1419 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1420 | struct beacon_parameters *info); | |
79c97e97 | 1421 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1422 | int err; |
1423 | struct net_device *dev; | |
1424 | struct beacon_parameters params; | |
1425 | int haveinfo = 0; | |
1426 | ||
f4a11bb0 JB |
1427 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1428 | return -EINVAL; | |
1429 | ||
3b85875a JB |
1430 | rtnl_lock(); |
1431 | ||
79c97e97 | 1432 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
ed1b6cc7 | 1433 | if (err) |
3b85875a | 1434 | goto unlock_rtnl; |
ed1b6cc7 | 1435 | |
eec60b03 JM |
1436 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1437 | err = -EOPNOTSUPP; | |
1438 | goto out; | |
1439 | } | |
1440 | ||
ed1b6cc7 JB |
1441 | switch (info->genlhdr->cmd) { |
1442 | case NL80211_CMD_NEW_BEACON: | |
1443 | /* these are required for NEW_BEACON */ | |
1444 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1445 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1446 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1447 | err = -EINVAL; | |
1448 | goto out; | |
1449 | } | |
1450 | ||
79c97e97 | 1451 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1452 | break; |
1453 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1454 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1455 | break; |
1456 | default: | |
1457 | WARN_ON(1); | |
1458 | err = -EOPNOTSUPP; | |
1459 | goto out; | |
1460 | } | |
1461 | ||
1462 | if (!call) { | |
1463 | err = -EOPNOTSUPP; | |
1464 | goto out; | |
1465 | } | |
1466 | ||
1467 | memset(¶ms, 0, sizeof(params)); | |
1468 | ||
1469 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1470 | params.interval = | |
1471 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1472 | haveinfo = 1; | |
1473 | } | |
1474 | ||
1475 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1476 | params.dtim_period = | |
1477 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1478 | haveinfo = 1; | |
1479 | } | |
1480 | ||
1481 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1482 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1483 | params.head_len = | |
1484 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1485 | haveinfo = 1; | |
1486 | } | |
1487 | ||
1488 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1489 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1490 | params.tail_len = | |
1491 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1492 | haveinfo = 1; | |
1493 | } | |
1494 | ||
1495 | if (!haveinfo) { | |
1496 | err = -EINVAL; | |
1497 | goto out; | |
1498 | } | |
1499 | ||
79c97e97 | 1500 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1501 | |
1502 | out: | |
79c97e97 | 1503 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1504 | dev_put(dev); |
3b85875a JB |
1505 | unlock_rtnl: |
1506 | rtnl_unlock(); | |
1507 | ||
ed1b6cc7 JB |
1508 | return err; |
1509 | } | |
1510 | ||
1511 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1512 | { | |
79c97e97 | 1513 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1514 | int err; |
1515 | struct net_device *dev; | |
1516 | ||
3b85875a JB |
1517 | rtnl_lock(); |
1518 | ||
79c97e97 | 1519 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
ed1b6cc7 | 1520 | if (err) |
3b85875a | 1521 | goto unlock_rtnl; |
ed1b6cc7 | 1522 | |
79c97e97 | 1523 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1524 | err = -EOPNOTSUPP; |
1525 | goto out; | |
1526 | } | |
1527 | ||
eec60b03 JM |
1528 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1529 | err = -EOPNOTSUPP; | |
1530 | goto out; | |
1531 | } | |
79c97e97 | 1532 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1533 | |
1534 | out: | |
79c97e97 | 1535 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1536 | dev_put(dev); |
3b85875a JB |
1537 | unlock_rtnl: |
1538 | rtnl_unlock(); | |
1539 | ||
ed1b6cc7 JB |
1540 | return err; |
1541 | } | |
1542 | ||
5727ef1b JB |
1543 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1544 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1545 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1546 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1547 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1548 | }; |
1549 | ||
eccb8e8f JB |
1550 | static int parse_station_flags(struct genl_info *info, |
1551 | struct station_parameters *params) | |
5727ef1b JB |
1552 | { |
1553 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1554 | struct nlattr *nla; |
5727ef1b JB |
1555 | int flag; |
1556 | ||
eccb8e8f JB |
1557 | /* |
1558 | * Try parsing the new attribute first so userspace | |
1559 | * can specify both for older kernels. | |
1560 | */ | |
1561 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1562 | if (nla) { | |
1563 | struct nl80211_sta_flag_update *sta_flags; | |
1564 | ||
1565 | sta_flags = nla_data(nla); | |
1566 | params->sta_flags_mask = sta_flags->mask; | |
1567 | params->sta_flags_set = sta_flags->set; | |
1568 | if ((params->sta_flags_mask | | |
1569 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1570 | return -EINVAL; | |
1571 | return 0; | |
1572 | } | |
1573 | ||
1574 | /* if present, parse the old attribute */ | |
5727ef1b | 1575 | |
eccb8e8f | 1576 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1577 | if (!nla) |
1578 | return 0; | |
1579 | ||
1580 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1581 | nla, sta_flags_policy)) | |
1582 | return -EINVAL; | |
1583 | ||
eccb8e8f JB |
1584 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1585 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1586 | |
1587 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1588 | if (flags[flag]) | |
eccb8e8f | 1589 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1590 | |
1591 | return 0; | |
1592 | } | |
1593 | ||
420e7fab HR |
1594 | static u16 nl80211_calculate_bitrate(struct rate_info *rate) |
1595 | { | |
1596 | int modulation, streams, bitrate; | |
1597 | ||
1598 | if (!(rate->flags & RATE_INFO_FLAGS_MCS)) | |
1599 | return rate->legacy; | |
1600 | ||
1601 | /* the formula below does only work for MCS values smaller than 32 */ | |
1602 | if (rate->mcs >= 32) | |
1603 | return 0; | |
1604 | ||
1605 | modulation = rate->mcs & 7; | |
1606 | streams = (rate->mcs >> 3) + 1; | |
1607 | ||
1608 | bitrate = (rate->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) ? | |
1609 | 13500000 : 6500000; | |
1610 | ||
1611 | if (modulation < 4) | |
1612 | bitrate *= (modulation + 1); | |
1613 | else if (modulation == 4) | |
1614 | bitrate *= (modulation + 2); | |
1615 | else | |
1616 | bitrate *= (modulation + 3); | |
1617 | ||
1618 | bitrate *= streams; | |
1619 | ||
1620 | if (rate->flags & RATE_INFO_FLAGS_SHORT_GI) | |
1621 | bitrate = (bitrate / 9) * 10; | |
1622 | ||
1623 | /* do NOT round down here */ | |
1624 | return (bitrate + 50000) / 100000; | |
1625 | } | |
1626 | ||
fd5b74dc JB |
1627 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1628 | int flags, struct net_device *dev, | |
2ec600d6 | 1629 | u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1630 | { |
1631 | void *hdr; | |
420e7fab HR |
1632 | struct nlattr *sinfoattr, *txrate; |
1633 | u16 bitrate; | |
fd5b74dc JB |
1634 | |
1635 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1636 | if (!hdr) | |
1637 | return -1; | |
1638 | ||
1639 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1640 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1641 | ||
2ec600d6 LCC |
1642 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1643 | if (!sinfoattr) | |
fd5b74dc | 1644 | goto nla_put_failure; |
2ec600d6 LCC |
1645 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1646 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1647 | sinfo->inactive_time); | |
1648 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1649 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1650 | sinfo->rx_bytes); | |
1651 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1652 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1653 | sinfo->tx_bytes); | |
1654 | if (sinfo->filled & STATION_INFO_LLID) | |
1655 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1656 | sinfo->llid); | |
1657 | if (sinfo->filled & STATION_INFO_PLID) | |
1658 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1659 | sinfo->plid); | |
1660 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1661 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1662 | sinfo->plink_state); | |
420e7fab HR |
1663 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1664 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1665 | sinfo->signal); | |
1666 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1667 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1668 | if (!txrate) | |
1669 | goto nla_put_failure; | |
1670 | ||
1671 | /* nl80211_calculate_bitrate will return 0 for mcs >= 32 */ | |
1672 | bitrate = nl80211_calculate_bitrate(&sinfo->txrate); | |
1673 | if (bitrate > 0) | |
1674 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1675 | |
420e7fab HR |
1676 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1677 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1678 | sinfo->txrate.mcs); | |
1679 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1680 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1681 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1682 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1683 | ||
1684 | nla_nest_end(msg, txrate); | |
1685 | } | |
98c8a60a JM |
1686 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1687 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1688 | sinfo->rx_packets); | |
1689 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1690 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1691 | sinfo->tx_packets); | |
2ec600d6 | 1692 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1693 | |
1694 | return genlmsg_end(msg, hdr); | |
1695 | ||
1696 | nla_put_failure: | |
bc3ed28c TG |
1697 | genlmsg_cancel(msg, hdr); |
1698 | return -EMSGSIZE; | |
fd5b74dc JB |
1699 | } |
1700 | ||
2ec600d6 | 1701 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1702 | struct netlink_callback *cb) |
2ec600d6 | 1703 | { |
2ec600d6 LCC |
1704 | struct station_info sinfo; |
1705 | struct cfg80211_registered_device *dev; | |
bba95fef | 1706 | struct net_device *netdev; |
2ec600d6 | 1707 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1708 | int ifidx = cb->args[0]; |
1709 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1710 | int err; |
2ec600d6 | 1711 | |
bba95fef JB |
1712 | if (!ifidx) { |
1713 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
1714 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
1715 | nl80211_policy); | |
1716 | if (err) | |
1717 | return err; | |
2ec600d6 | 1718 | |
bba95fef JB |
1719 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) |
1720 | return -EINVAL; | |
2ec600d6 | 1721 | |
bba95fef JB |
1722 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); |
1723 | if (!ifidx) | |
1724 | return -EINVAL; | |
2ec600d6 | 1725 | } |
2ec600d6 | 1726 | |
3b85875a JB |
1727 | rtnl_lock(); |
1728 | ||
1729 | netdev = __dev_get_by_index(&init_net, ifidx); | |
1730 | if (!netdev) { | |
1731 | err = -ENODEV; | |
1732 | goto out_rtnl; | |
1733 | } | |
2ec600d6 | 1734 | |
bba95fef JB |
1735 | dev = cfg80211_get_dev_from_ifindex(ifidx); |
1736 | if (IS_ERR(dev)) { | |
1737 | err = PTR_ERR(dev); | |
3b85875a | 1738 | goto out_rtnl; |
bba95fef JB |
1739 | } |
1740 | ||
1741 | if (!dev->ops->dump_station) { | |
eec60b03 | 1742 | err = -EOPNOTSUPP; |
bba95fef JB |
1743 | goto out_err; |
1744 | } | |
1745 | ||
bba95fef JB |
1746 | while (1) { |
1747 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1748 | mac_addr, &sinfo); | |
1749 | if (err == -ENOENT) | |
1750 | break; | |
1751 | if (err) | |
3b85875a | 1752 | goto out_err; |
bba95fef JB |
1753 | |
1754 | if (nl80211_send_station(skb, | |
1755 | NETLINK_CB(cb->skb).pid, | |
1756 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1757 | netdev, mac_addr, | |
1758 | &sinfo) < 0) | |
1759 | goto out; | |
1760 | ||
1761 | sta_idx++; | |
1762 | } | |
1763 | ||
1764 | ||
1765 | out: | |
1766 | cb->args[1] = sta_idx; | |
1767 | err = skb->len; | |
bba95fef | 1768 | out_err: |
4d0c8aea | 1769 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1770 | out_rtnl: |
1771 | rtnl_unlock(); | |
bba95fef JB |
1772 | |
1773 | return err; | |
2ec600d6 | 1774 | } |
fd5b74dc | 1775 | |
5727ef1b JB |
1776 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1777 | { | |
79c97e97 | 1778 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1779 | int err; |
1780 | struct net_device *dev; | |
2ec600d6 | 1781 | struct station_info sinfo; |
fd5b74dc JB |
1782 | struct sk_buff *msg; |
1783 | u8 *mac_addr = NULL; | |
1784 | ||
2ec600d6 | 1785 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1786 | |
1787 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1788 | return -EINVAL; | |
1789 | ||
1790 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1791 | ||
3b85875a JB |
1792 | rtnl_lock(); |
1793 | ||
79c97e97 | 1794 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
fd5b74dc | 1795 | if (err) |
3b85875a | 1796 | goto out_rtnl; |
fd5b74dc | 1797 | |
79c97e97 | 1798 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
1799 | err = -EOPNOTSUPP; |
1800 | goto out; | |
1801 | } | |
1802 | ||
79c97e97 | 1803 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1804 | if (err) |
1805 | goto out; | |
1806 | ||
fd2120ca | 1807 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
1808 | if (!msg) |
1809 | goto out; | |
1810 | ||
1811 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1812 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1813 | goto out_free; |
1814 | ||
134e6375 | 1815 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
1816 | goto out; |
1817 | ||
1818 | out_free: | |
1819 | nlmsg_free(msg); | |
fd5b74dc | 1820 | out: |
79c97e97 | 1821 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 1822 | dev_put(dev); |
3b85875a JB |
1823 | out_rtnl: |
1824 | rtnl_unlock(); | |
1825 | ||
fd5b74dc | 1826 | return err; |
5727ef1b JB |
1827 | } |
1828 | ||
1829 | /* | |
1830 | * Get vlan interface making sure it is on the right wiphy. | |
1831 | */ | |
1832 | static int get_vlan(struct nlattr *vlanattr, | |
1833 | struct cfg80211_registered_device *rdev, | |
1834 | struct net_device **vlan) | |
1835 | { | |
1836 | *vlan = NULL; | |
1837 | ||
1838 | if (vlanattr) { | |
1839 | *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr)); | |
1840 | if (!*vlan) | |
1841 | return -ENODEV; | |
1842 | if (!(*vlan)->ieee80211_ptr) | |
1843 | return -EINVAL; | |
1844 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1845 | return -EINVAL; | |
1846 | } | |
1847 | return 0; | |
1848 | } | |
1849 | ||
1850 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1851 | { | |
79c97e97 | 1852 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1853 | int err; |
1854 | struct net_device *dev; | |
1855 | struct station_parameters params; | |
1856 | u8 *mac_addr = NULL; | |
1857 | ||
1858 | memset(¶ms, 0, sizeof(params)); | |
1859 | ||
1860 | params.listen_interval = -1; | |
1861 | ||
1862 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1863 | return -EINVAL; | |
1864 | ||
1865 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1866 | return -EINVAL; | |
1867 | ||
1868 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1869 | ||
1870 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1871 | params.supported_rates = | |
1872 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1873 | params.supported_rates_len = | |
1874 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1875 | } | |
1876 | ||
1877 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1878 | params.listen_interval = | |
1879 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1880 | ||
36aedc90 JM |
1881 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1882 | params.ht_capa = | |
1883 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1884 | ||
eccb8e8f | 1885 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1886 | return -EINVAL; |
1887 | ||
2ec600d6 LCC |
1888 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1889 | params.plink_action = | |
1890 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1891 | ||
3b85875a JB |
1892 | rtnl_lock(); |
1893 | ||
79c97e97 | 1894 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
5727ef1b | 1895 | if (err) |
3b85875a | 1896 | goto out_rtnl; |
5727ef1b | 1897 | |
79c97e97 | 1898 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan); |
a97f4424 | 1899 | if (err) |
034d655e | 1900 | goto out; |
a97f4424 JB |
1901 | |
1902 | /* validate settings */ | |
1903 | err = 0; | |
1904 | ||
1905 | switch (dev->ieee80211_ptr->iftype) { | |
1906 | case NL80211_IFTYPE_AP: | |
1907 | case NL80211_IFTYPE_AP_VLAN: | |
1908 | /* disallow mesh-specific things */ | |
1909 | if (params.plink_action) | |
1910 | err = -EINVAL; | |
1911 | break; | |
1912 | case NL80211_IFTYPE_STATION: | |
1913 | /* disallow everything but AUTHORIZED flag */ | |
1914 | if (params.plink_action) | |
1915 | err = -EINVAL; | |
1916 | if (params.vlan) | |
1917 | err = -EINVAL; | |
1918 | if (params.supported_rates) | |
1919 | err = -EINVAL; | |
1920 | if (params.ht_capa) | |
1921 | err = -EINVAL; | |
1922 | if (params.listen_interval >= 0) | |
1923 | err = -EINVAL; | |
1924 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1925 | err = -EINVAL; | |
1926 | break; | |
1927 | case NL80211_IFTYPE_MESH_POINT: | |
1928 | /* disallow things mesh doesn't support */ | |
1929 | if (params.vlan) | |
1930 | err = -EINVAL; | |
1931 | if (params.ht_capa) | |
1932 | err = -EINVAL; | |
1933 | if (params.listen_interval >= 0) | |
1934 | err = -EINVAL; | |
1935 | if (params.supported_rates) | |
1936 | err = -EINVAL; | |
1937 | if (params.sta_flags_mask) | |
1938 | err = -EINVAL; | |
1939 | break; | |
1940 | default: | |
1941 | err = -EINVAL; | |
034d655e JB |
1942 | } |
1943 | ||
5727ef1b JB |
1944 | if (err) |
1945 | goto out; | |
1946 | ||
79c97e97 | 1947 | if (!rdev->ops->change_station) { |
5727ef1b JB |
1948 | err = -EOPNOTSUPP; |
1949 | goto out; | |
1950 | } | |
1951 | ||
79c97e97 | 1952 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1953 | |
1954 | out: | |
1955 | if (params.vlan) | |
1956 | dev_put(params.vlan); | |
79c97e97 | 1957 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 1958 | dev_put(dev); |
3b85875a JB |
1959 | out_rtnl: |
1960 | rtnl_unlock(); | |
1961 | ||
5727ef1b JB |
1962 | return err; |
1963 | } | |
1964 | ||
1965 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1966 | { | |
79c97e97 | 1967 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1968 | int err; |
1969 | struct net_device *dev; | |
1970 | struct station_parameters params; | |
1971 | u8 *mac_addr = NULL; | |
1972 | ||
1973 | memset(¶ms, 0, sizeof(params)); | |
1974 | ||
1975 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1976 | return -EINVAL; | |
1977 | ||
5727ef1b JB |
1978 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
1979 | return -EINVAL; | |
1980 | ||
1981 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1982 | return -EINVAL; | |
1983 | ||
1984 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1985 | params.supported_rates = | |
1986 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1987 | params.supported_rates_len = | |
1988 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1989 | params.listen_interval = | |
1990 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 1991 | |
a97f4424 JB |
1992 | if (info->attrs[NL80211_ATTR_STA_AID]) { |
1993 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
1994 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
1995 | return -EINVAL; | |
1996 | } | |
51b50fbe | 1997 | |
36aedc90 JM |
1998 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1999 | params.ht_capa = | |
2000 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2001 | |
eccb8e8f | 2002 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2003 | return -EINVAL; |
2004 | ||
3b85875a JB |
2005 | rtnl_lock(); |
2006 | ||
79c97e97 | 2007 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
5727ef1b | 2008 | if (err) |
3b85875a | 2009 | goto out_rtnl; |
5727ef1b | 2010 | |
79c97e97 | 2011 | err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], rdev, ¶ms.vlan); |
a97f4424 | 2012 | if (err) |
e80cf853 | 2013 | goto out; |
a97f4424 JB |
2014 | |
2015 | /* validate settings */ | |
2016 | err = 0; | |
2017 | ||
2018 | switch (dev->ieee80211_ptr->iftype) { | |
2019 | case NL80211_IFTYPE_AP: | |
2020 | case NL80211_IFTYPE_AP_VLAN: | |
2021 | /* all ok but must have AID */ | |
2022 | if (!params.aid) | |
2023 | err = -EINVAL; | |
2024 | break; | |
2025 | case NL80211_IFTYPE_MESH_POINT: | |
2026 | /* disallow things mesh doesn't support */ | |
2027 | if (params.vlan) | |
2028 | err = -EINVAL; | |
2029 | if (params.aid) | |
2030 | err = -EINVAL; | |
2031 | if (params.ht_capa) | |
2032 | err = -EINVAL; | |
2033 | if (params.listen_interval >= 0) | |
2034 | err = -EINVAL; | |
2035 | if (params.supported_rates) | |
2036 | err = -EINVAL; | |
2037 | if (params.sta_flags_mask) | |
2038 | err = -EINVAL; | |
2039 | break; | |
2040 | default: | |
2041 | err = -EINVAL; | |
e80cf853 JB |
2042 | } |
2043 | ||
5727ef1b JB |
2044 | if (err) |
2045 | goto out; | |
2046 | ||
79c97e97 | 2047 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2048 | err = -EOPNOTSUPP; |
2049 | goto out; | |
2050 | } | |
2051 | ||
35a8efe1 JM |
2052 | if (!netif_running(dev)) { |
2053 | err = -ENETDOWN; | |
2054 | goto out; | |
2055 | } | |
2056 | ||
79c97e97 | 2057 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2058 | |
2059 | out: | |
2060 | if (params.vlan) | |
2061 | dev_put(params.vlan); | |
79c97e97 | 2062 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2063 | dev_put(dev); |
3b85875a JB |
2064 | out_rtnl: |
2065 | rtnl_unlock(); | |
2066 | ||
5727ef1b JB |
2067 | return err; |
2068 | } | |
2069 | ||
2070 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2071 | { | |
79c97e97 | 2072 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2073 | int err; |
2074 | struct net_device *dev; | |
2075 | u8 *mac_addr = NULL; | |
2076 | ||
2077 | if (info->attrs[NL80211_ATTR_MAC]) | |
2078 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2079 | ||
3b85875a JB |
2080 | rtnl_lock(); |
2081 | ||
79c97e97 | 2082 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
5727ef1b | 2083 | if (err) |
3b85875a | 2084 | goto out_rtnl; |
5727ef1b | 2085 | |
e80cf853 | 2086 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
155cc9e4 AY |
2087 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
2088 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
2089 | err = -EINVAL; |
2090 | goto out; | |
2091 | } | |
2092 | ||
79c97e97 | 2093 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2094 | err = -EOPNOTSUPP; |
2095 | goto out; | |
2096 | } | |
2097 | ||
79c97e97 | 2098 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2099 | |
2100 | out: | |
79c97e97 | 2101 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2102 | dev_put(dev); |
3b85875a JB |
2103 | out_rtnl: |
2104 | rtnl_unlock(); | |
2105 | ||
5727ef1b JB |
2106 | return err; |
2107 | } | |
2108 | ||
2ec600d6 LCC |
2109 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2110 | int flags, struct net_device *dev, | |
2111 | u8 *dst, u8 *next_hop, | |
2112 | struct mpath_info *pinfo) | |
2113 | { | |
2114 | void *hdr; | |
2115 | struct nlattr *pinfoattr; | |
2116 | ||
2117 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2118 | if (!hdr) | |
2119 | return -1; | |
2120 | ||
2121 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2122 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2123 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2124 | ||
2125 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); | |
2126 | if (!pinfoattr) | |
2127 | goto nla_put_failure; | |
2128 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2129 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2130 | pinfo->frame_qlen); | |
2131 | if (pinfo->filled & MPATH_INFO_DSN) | |
2132 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, | |
2133 | pinfo->dsn); | |
2134 | if (pinfo->filled & MPATH_INFO_METRIC) | |
2135 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2136 | pinfo->metric); | |
2137 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2138 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2139 | pinfo->exptime); | |
2140 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2141 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2142 | pinfo->flags); | |
2143 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2144 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2145 | pinfo->discovery_timeout); | |
2146 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2147 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2148 | pinfo->discovery_retries); | |
2149 | ||
2150 | nla_nest_end(msg, pinfoattr); | |
2151 | ||
2152 | return genlmsg_end(msg, hdr); | |
2153 | ||
2154 | nla_put_failure: | |
bc3ed28c TG |
2155 | genlmsg_cancel(msg, hdr); |
2156 | return -EMSGSIZE; | |
2ec600d6 LCC |
2157 | } |
2158 | ||
2159 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2160 | struct netlink_callback *cb) |
2ec600d6 | 2161 | { |
2ec600d6 LCC |
2162 | struct mpath_info pinfo; |
2163 | struct cfg80211_registered_device *dev; | |
bba95fef | 2164 | struct net_device *netdev; |
2ec600d6 LCC |
2165 | u8 dst[ETH_ALEN]; |
2166 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2167 | int ifidx = cb->args[0]; |
2168 | int path_idx = cb->args[1]; | |
2ec600d6 | 2169 | int err; |
2ec600d6 | 2170 | |
bba95fef JB |
2171 | if (!ifidx) { |
2172 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
2173 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
2174 | nl80211_policy); | |
2175 | if (err) | |
2176 | return err; | |
2177 | ||
2178 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
2179 | return -EINVAL; | |
2180 | ||
2181 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
2182 | if (!ifidx) | |
2183 | return -EINVAL; | |
2184 | } | |
2185 | ||
3b85875a JB |
2186 | rtnl_lock(); |
2187 | ||
2188 | netdev = __dev_get_by_index(&init_net, ifidx); | |
2189 | if (!netdev) { | |
2190 | err = -ENODEV; | |
2191 | goto out_rtnl; | |
2192 | } | |
bba95fef JB |
2193 | |
2194 | dev = cfg80211_get_dev_from_ifindex(ifidx); | |
2195 | if (IS_ERR(dev)) { | |
2196 | err = PTR_ERR(dev); | |
3b85875a | 2197 | goto out_rtnl; |
bba95fef JB |
2198 | } |
2199 | ||
2200 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2201 | err = -EOPNOTSUPP; |
bba95fef JB |
2202 | goto out_err; |
2203 | } | |
2204 | ||
eec60b03 JM |
2205 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2206 | err = -EOPNOTSUPP; | |
2207 | goto out; | |
2208 | } | |
2209 | ||
bba95fef JB |
2210 | while (1) { |
2211 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2212 | dst, next_hop, &pinfo); | |
2213 | if (err == -ENOENT) | |
2ec600d6 | 2214 | break; |
bba95fef | 2215 | if (err) |
3b85875a | 2216 | goto out_err; |
2ec600d6 | 2217 | |
bba95fef JB |
2218 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2219 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2220 | netdev, dst, next_hop, | |
2221 | &pinfo) < 0) | |
2222 | goto out; | |
2ec600d6 | 2223 | |
bba95fef | 2224 | path_idx++; |
2ec600d6 | 2225 | } |
2ec600d6 | 2226 | |
2ec600d6 | 2227 | |
bba95fef JB |
2228 | out: |
2229 | cb->args[1] = path_idx; | |
2230 | err = skb->len; | |
bba95fef | 2231 | out_err: |
4d0c8aea | 2232 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2233 | out_rtnl: |
2234 | rtnl_unlock(); | |
bba95fef JB |
2235 | |
2236 | return err; | |
2ec600d6 LCC |
2237 | } |
2238 | ||
2239 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2240 | { | |
79c97e97 | 2241 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2242 | int err; |
2243 | struct net_device *dev; | |
2244 | struct mpath_info pinfo; | |
2245 | struct sk_buff *msg; | |
2246 | u8 *dst = NULL; | |
2247 | u8 next_hop[ETH_ALEN]; | |
2248 | ||
2249 | memset(&pinfo, 0, sizeof(pinfo)); | |
2250 | ||
2251 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2252 | return -EINVAL; | |
2253 | ||
2254 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2255 | ||
3b85875a JB |
2256 | rtnl_lock(); |
2257 | ||
79c97e97 | 2258 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
2ec600d6 | 2259 | if (err) |
3b85875a | 2260 | goto out_rtnl; |
2ec600d6 | 2261 | |
79c97e97 | 2262 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2263 | err = -EOPNOTSUPP; |
2264 | goto out; | |
2265 | } | |
2266 | ||
eec60b03 JM |
2267 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2268 | err = -EOPNOTSUPP; | |
2269 | goto out; | |
2270 | } | |
2271 | ||
79c97e97 | 2272 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2273 | if (err) |
2274 | goto out; | |
2275 | ||
fd2120ca | 2276 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2277 | if (!msg) |
2278 | goto out; | |
2279 | ||
2280 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2281 | dev, dst, next_hop, &pinfo) < 0) | |
2282 | goto out_free; | |
2283 | ||
134e6375 | 2284 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2285 | goto out; |
2286 | ||
2287 | out_free: | |
2288 | nlmsg_free(msg); | |
2ec600d6 | 2289 | out: |
79c97e97 | 2290 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2291 | dev_put(dev); |
3b85875a JB |
2292 | out_rtnl: |
2293 | rtnl_unlock(); | |
2294 | ||
2ec600d6 LCC |
2295 | return err; |
2296 | } | |
2297 | ||
2298 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2299 | { | |
79c97e97 | 2300 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2301 | int err; |
2302 | struct net_device *dev; | |
2303 | u8 *dst = NULL; | |
2304 | u8 *next_hop = NULL; | |
2305 | ||
2306 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2307 | return -EINVAL; | |
2308 | ||
2309 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2310 | return -EINVAL; | |
2311 | ||
2312 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2313 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2314 | ||
3b85875a JB |
2315 | rtnl_lock(); |
2316 | ||
79c97e97 | 2317 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
2ec600d6 | 2318 | if (err) |
3b85875a | 2319 | goto out_rtnl; |
2ec600d6 | 2320 | |
79c97e97 | 2321 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2322 | err = -EOPNOTSUPP; |
2323 | goto out; | |
2324 | } | |
2325 | ||
eec60b03 JM |
2326 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2327 | err = -EOPNOTSUPP; | |
2328 | goto out; | |
2329 | } | |
2330 | ||
35a8efe1 JM |
2331 | if (!netif_running(dev)) { |
2332 | err = -ENETDOWN; | |
2333 | goto out; | |
2334 | } | |
2335 | ||
79c97e97 | 2336 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2337 | |
2338 | out: | |
79c97e97 | 2339 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2340 | dev_put(dev); |
3b85875a JB |
2341 | out_rtnl: |
2342 | rtnl_unlock(); | |
2343 | ||
2ec600d6 LCC |
2344 | return err; |
2345 | } | |
2346 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2347 | { | |
79c97e97 | 2348 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2349 | int err; |
2350 | struct net_device *dev; | |
2351 | u8 *dst = NULL; | |
2352 | u8 *next_hop = NULL; | |
2353 | ||
2354 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2355 | return -EINVAL; | |
2356 | ||
2357 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2358 | return -EINVAL; | |
2359 | ||
2360 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2361 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2362 | ||
3b85875a JB |
2363 | rtnl_lock(); |
2364 | ||
79c97e97 | 2365 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
2ec600d6 | 2366 | if (err) |
3b85875a | 2367 | goto out_rtnl; |
2ec600d6 | 2368 | |
79c97e97 | 2369 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2370 | err = -EOPNOTSUPP; |
2371 | goto out; | |
2372 | } | |
2373 | ||
eec60b03 JM |
2374 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2375 | err = -EOPNOTSUPP; | |
2376 | goto out; | |
2377 | } | |
2378 | ||
35a8efe1 JM |
2379 | if (!netif_running(dev)) { |
2380 | err = -ENETDOWN; | |
2381 | goto out; | |
2382 | } | |
2383 | ||
79c97e97 | 2384 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2385 | |
2386 | out: | |
79c97e97 | 2387 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2388 | dev_put(dev); |
3b85875a JB |
2389 | out_rtnl: |
2390 | rtnl_unlock(); | |
2391 | ||
2ec600d6 LCC |
2392 | return err; |
2393 | } | |
2394 | ||
2395 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2396 | { | |
79c97e97 | 2397 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2398 | int err; |
2399 | struct net_device *dev; | |
2400 | u8 *dst = NULL; | |
2401 | ||
2402 | if (info->attrs[NL80211_ATTR_MAC]) | |
2403 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2404 | ||
3b85875a JB |
2405 | rtnl_lock(); |
2406 | ||
79c97e97 | 2407 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
2ec600d6 | 2408 | if (err) |
3b85875a | 2409 | goto out_rtnl; |
2ec600d6 | 2410 | |
79c97e97 | 2411 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2412 | err = -EOPNOTSUPP; |
2413 | goto out; | |
2414 | } | |
2415 | ||
79c97e97 | 2416 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2417 | |
2418 | out: | |
79c97e97 | 2419 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2420 | dev_put(dev); |
3b85875a JB |
2421 | out_rtnl: |
2422 | rtnl_unlock(); | |
2423 | ||
2ec600d6 LCC |
2424 | return err; |
2425 | } | |
2426 | ||
9f1ba906 JM |
2427 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2428 | { | |
79c97e97 | 2429 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2430 | int err; |
2431 | struct net_device *dev; | |
2432 | struct bss_parameters params; | |
2433 | ||
2434 | memset(¶ms, 0, sizeof(params)); | |
2435 | /* default to not changing parameters */ | |
2436 | params.use_cts_prot = -1; | |
2437 | params.use_short_preamble = -1; | |
2438 | params.use_short_slot_time = -1; | |
2439 | ||
2440 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2441 | params.use_cts_prot = | |
2442 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2443 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2444 | params.use_short_preamble = | |
2445 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2446 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2447 | params.use_short_slot_time = | |
2448 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2449 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2450 | params.basic_rates = | |
2451 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2452 | params.basic_rates_len = | |
2453 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2454 | } | |
9f1ba906 | 2455 | |
3b85875a JB |
2456 | rtnl_lock(); |
2457 | ||
79c97e97 | 2458 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
9f1ba906 | 2459 | if (err) |
3b85875a | 2460 | goto out_rtnl; |
9f1ba906 | 2461 | |
79c97e97 | 2462 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2463 | err = -EOPNOTSUPP; |
2464 | goto out; | |
2465 | } | |
2466 | ||
eec60b03 JM |
2467 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2468 | err = -EOPNOTSUPP; | |
2469 | goto out; | |
2470 | } | |
2471 | ||
79c97e97 | 2472 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2473 | |
2474 | out: | |
79c97e97 | 2475 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2476 | dev_put(dev); |
3b85875a JB |
2477 | out_rtnl: |
2478 | rtnl_unlock(); | |
2479 | ||
9f1ba906 JM |
2480 | return err; |
2481 | } | |
2482 | ||
b2e1b302 LR |
2483 | static const struct nla_policy |
2484 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2485 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2486 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2487 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2488 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2489 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2490 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2491 | }; | |
2492 | ||
2493 | static int parse_reg_rule(struct nlattr *tb[], | |
2494 | struct ieee80211_reg_rule *reg_rule) | |
2495 | { | |
2496 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2497 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2498 | ||
2499 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2500 | return -EINVAL; | |
2501 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2502 | return -EINVAL; | |
2503 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2504 | return -EINVAL; | |
2505 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2506 | return -EINVAL; | |
2507 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2508 | return -EINVAL; | |
2509 | ||
2510 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2511 | ||
2512 | freq_range->start_freq_khz = | |
2513 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2514 | freq_range->end_freq_khz = | |
2515 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2516 | freq_range->max_bandwidth_khz = | |
2517 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2518 | ||
2519 | power_rule->max_eirp = | |
2520 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2521 | ||
2522 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2523 | power_rule->max_antenna_gain = | |
2524 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2525 | ||
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2530 | { | |
2531 | int r; | |
2532 | char *data = NULL; | |
2533 | ||
80778f18 LR |
2534 | /* |
2535 | * You should only get this when cfg80211 hasn't yet initialized | |
2536 | * completely when built-in to the kernel right between the time | |
2537 | * window between nl80211_init() and regulatory_init(), if that is | |
2538 | * even possible. | |
2539 | */ | |
2540 | mutex_lock(&cfg80211_mutex); | |
2541 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2542 | mutex_unlock(&cfg80211_mutex); |
2543 | return -EINPROGRESS; | |
80778f18 | 2544 | } |
fe33eb39 | 2545 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2546 | |
fe33eb39 LR |
2547 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2548 | return -EINVAL; | |
b2e1b302 LR |
2549 | |
2550 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2551 | ||
2552 | #ifdef CONFIG_WIRELESS_OLD_REGULATORY | |
2553 | /* We ignore world regdom requests with the old regdom setup */ | |
fe33eb39 LR |
2554 | if (is_world_regdom(data)) |
2555 | return -EINVAL; | |
b2e1b302 | 2556 | #endif |
fe33eb39 LR |
2557 | |
2558 | r = regulatory_hint_user(data); | |
2559 | ||
b2e1b302 LR |
2560 | return r; |
2561 | } | |
2562 | ||
93da9cc1 | 2563 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2564 | struct genl_info *info) | |
2565 | { | |
79c97e97 | 2566 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2567 | struct mesh_config cur_params; |
2568 | int err; | |
2569 | struct net_device *dev; | |
2570 | void *hdr; | |
2571 | struct nlattr *pinfoattr; | |
2572 | struct sk_buff *msg; | |
2573 | ||
3b85875a JB |
2574 | rtnl_lock(); |
2575 | ||
93da9cc1 | 2576 | /* Look up our device */ |
79c97e97 | 2577 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
93da9cc1 | 2578 | if (err) |
3b85875a | 2579 | goto out_rtnl; |
93da9cc1 | 2580 | |
79c97e97 | 2581 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2582 | err = -EOPNOTSUPP; |
2583 | goto out; | |
2584 | } | |
2585 | ||
93da9cc1 | 2586 | /* Get the mesh params */ |
79c97e97 | 2587 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2588 | if (err) |
2589 | goto out; | |
2590 | ||
2591 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2592 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2593 | if (!msg) { |
2594 | err = -ENOBUFS; | |
2595 | goto out; | |
2596 | } | |
2597 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2598 | NL80211_CMD_GET_MESH_PARAMS); | |
2599 | if (!hdr) | |
2600 | goto nla_put_failure; | |
2601 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2602 | if (!pinfoattr) | |
2603 | goto nla_put_failure; | |
2604 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2605 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2606 | cur_params.dot11MeshRetryTimeout); | |
2607 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2608 | cur_params.dot11MeshConfirmTimeout); | |
2609 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2610 | cur_params.dot11MeshHoldingTimeout); | |
2611 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2612 | cur_params.dot11MeshMaxPeerLinks); | |
2613 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2614 | cur_params.dot11MeshMaxRetries); | |
2615 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2616 | cur_params.dot11MeshTTL); | |
2617 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2618 | cur_params.auto_open_plinks); | |
2619 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2620 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2621 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2622 | cur_params.path_refresh_time); | |
2623 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2624 | cur_params.min_discovery_timeout); | |
2625 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2626 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2627 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2628 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2629 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2630 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
2631 | nla_nest_end(msg, pinfoattr); | |
2632 | genlmsg_end(msg, hdr); | |
134e6375 | 2633 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2634 | goto out; |
2635 | ||
3b85875a | 2636 | nla_put_failure: |
93da9cc1 | 2637 | genlmsg_cancel(msg, hdr); |
2638 | err = -EMSGSIZE; | |
3b85875a | 2639 | out: |
93da9cc1 | 2640 | /* Cleanup */ |
79c97e97 | 2641 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2642 | dev_put(dev); |
3b85875a JB |
2643 | out_rtnl: |
2644 | rtnl_unlock(); | |
2645 | ||
93da9cc1 | 2646 | return err; |
2647 | } | |
2648 | ||
2649 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2650 | do {\ | |
2651 | if (table[attr_num]) {\ | |
2652 | cfg.param = nla_fn(table[attr_num]); \ | |
2653 | mask |= (1 << (attr_num - 1)); \ | |
2654 | } \ | |
2655 | } while (0);\ | |
2656 | ||
2657 | static struct nla_policy | |
2658 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2659 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2660 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2661 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2662 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2663 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2664 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2665 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2666 | ||
2667 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2668 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2669 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2670 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2671 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2672 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2673 | }; | |
2674 | ||
2675 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2676 | { | |
2677 | int err; | |
2678 | u32 mask; | |
79c97e97 | 2679 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2680 | struct net_device *dev; |
2681 | struct mesh_config cfg; | |
2682 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2683 | struct nlattr *parent_attr; | |
2684 | ||
2685 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2686 | if (!parent_attr) | |
2687 | return -EINVAL; | |
2688 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2689 | parent_attr, nl80211_meshconf_params_policy)) | |
2690 | return -EINVAL; | |
2691 | ||
3b85875a JB |
2692 | rtnl_lock(); |
2693 | ||
79c97e97 | 2694 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
93da9cc1 | 2695 | if (err) |
3b85875a | 2696 | goto out_rtnl; |
93da9cc1 | 2697 | |
79c97e97 | 2698 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2699 | err = -EOPNOTSUPP; |
2700 | goto out; | |
2701 | } | |
2702 | ||
93da9cc1 | 2703 | /* This makes sure that there aren't more than 32 mesh config |
2704 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2705 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2706 | ||
2707 | /* Fill in the params struct */ | |
2708 | mask = 0; | |
2709 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2710 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2711 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2712 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2713 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2714 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2715 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2716 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2717 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2718 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2719 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2720 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2721 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2722 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2723 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2724 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2725 | nla_get_u8); | |
2726 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2727 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2728 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2729 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2730 | nla_get_u16); | |
2731 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2732 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2733 | nla_get_u32); | |
2734 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2735 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2736 | nla_get_u16); | |
2737 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2738 | dot11MeshHWMPnetDiameterTraversalTime, | |
2739 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2740 | nla_get_u16); | |
2741 | ||
2742 | /* Apply changes */ | |
79c97e97 | 2743 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2744 | |
f3f92586 | 2745 | out: |
93da9cc1 | 2746 | /* cleanup */ |
79c97e97 | 2747 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2748 | dev_put(dev); |
3b85875a JB |
2749 | out_rtnl: |
2750 | rtnl_unlock(); | |
2751 | ||
93da9cc1 | 2752 | return err; |
2753 | } | |
2754 | ||
2755 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2756 | ||
f130347c LR |
2757 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2758 | { | |
2759 | struct sk_buff *msg; | |
2760 | void *hdr = NULL; | |
2761 | struct nlattr *nl_reg_rules; | |
2762 | unsigned int i; | |
2763 | int err = -EINVAL; | |
2764 | ||
a1794390 | 2765 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2766 | |
2767 | if (!cfg80211_regdomain) | |
2768 | goto out; | |
2769 | ||
fd2120ca | 2770 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2771 | if (!msg) { |
2772 | err = -ENOBUFS; | |
2773 | goto out; | |
2774 | } | |
2775 | ||
2776 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2777 | NL80211_CMD_GET_REG); | |
2778 | if (!hdr) | |
2779 | goto nla_put_failure; | |
2780 | ||
2781 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2782 | cfg80211_regdomain->alpha2); | |
2783 | ||
2784 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2785 | if (!nl_reg_rules) | |
2786 | goto nla_put_failure; | |
2787 | ||
2788 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2789 | struct nlattr *nl_reg_rule; | |
2790 | const struct ieee80211_reg_rule *reg_rule; | |
2791 | const struct ieee80211_freq_range *freq_range; | |
2792 | const struct ieee80211_power_rule *power_rule; | |
2793 | ||
2794 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2795 | freq_range = ®_rule->freq_range; | |
2796 | power_rule = ®_rule->power_rule; | |
2797 | ||
2798 | nl_reg_rule = nla_nest_start(msg, i); | |
2799 | if (!nl_reg_rule) | |
2800 | goto nla_put_failure; | |
2801 | ||
2802 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2803 | reg_rule->flags); | |
2804 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2805 | freq_range->start_freq_khz); | |
2806 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2807 | freq_range->end_freq_khz); | |
2808 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2809 | freq_range->max_bandwidth_khz); | |
2810 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2811 | power_rule->max_antenna_gain); | |
2812 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2813 | power_rule->max_eirp); | |
2814 | ||
2815 | nla_nest_end(msg, nl_reg_rule); | |
2816 | } | |
2817 | ||
2818 | nla_nest_end(msg, nl_reg_rules); | |
2819 | ||
2820 | genlmsg_end(msg, hdr); | |
134e6375 | 2821 | err = genlmsg_reply(msg, info); |
f130347c LR |
2822 | goto out; |
2823 | ||
2824 | nla_put_failure: | |
2825 | genlmsg_cancel(msg, hdr); | |
2826 | err = -EMSGSIZE; | |
2827 | out: | |
a1794390 | 2828 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2829 | return err; |
2830 | } | |
2831 | ||
b2e1b302 LR |
2832 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2833 | { | |
2834 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2835 | struct nlattr *nl_reg_rule; | |
2836 | char *alpha2 = NULL; | |
2837 | int rem_reg_rules = 0, r = 0; | |
2838 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2839 | struct ieee80211_regdomain *rd = NULL; | |
2840 | ||
2841 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2842 | return -EINVAL; | |
2843 | ||
2844 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2845 | return -EINVAL; | |
2846 | ||
2847 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2848 | ||
2849 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2850 | rem_reg_rules) { | |
2851 | num_rules++; | |
2852 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2853 | return -EINVAL; |
b2e1b302 LR |
2854 | } |
2855 | ||
61405e97 LR |
2856 | mutex_lock(&cfg80211_mutex); |
2857 | ||
d0e18f83 LR |
2858 | if (!reg_is_valid_request(alpha2)) { |
2859 | r = -EINVAL; | |
2860 | goto bad_reg; | |
2861 | } | |
b2e1b302 LR |
2862 | |
2863 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2864 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2865 | ||
2866 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2867 | if (!rd) { |
2868 | r = -ENOMEM; | |
2869 | goto bad_reg; | |
2870 | } | |
b2e1b302 LR |
2871 | |
2872 | rd->n_reg_rules = num_rules; | |
2873 | rd->alpha2[0] = alpha2[0]; | |
2874 | rd->alpha2[1] = alpha2[1]; | |
2875 | ||
2876 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2877 | rem_reg_rules) { | |
2878 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2879 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2880 | reg_rule_policy); | |
2881 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2882 | if (r) | |
2883 | goto bad_reg; | |
2884 | ||
2885 | rule_idx++; | |
2886 | ||
d0e18f83 LR |
2887 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2888 | r = -EINVAL; | |
b2e1b302 | 2889 | goto bad_reg; |
d0e18f83 | 2890 | } |
b2e1b302 LR |
2891 | } |
2892 | ||
2893 | BUG_ON(rule_idx != num_rules); | |
2894 | ||
b2e1b302 | 2895 | r = set_regdom(rd); |
61405e97 | 2896 | |
a1794390 | 2897 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2898 | |
b2e1b302 LR |
2899 | return r; |
2900 | ||
d2372b31 | 2901 | bad_reg: |
61405e97 | 2902 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2903 | kfree(rd); |
d0e18f83 | 2904 | return r; |
b2e1b302 LR |
2905 | } |
2906 | ||
83f5e2cf JB |
2907 | static int validate_scan_freqs(struct nlattr *freqs) |
2908 | { | |
2909 | struct nlattr *attr1, *attr2; | |
2910 | int n_channels = 0, tmp1, tmp2; | |
2911 | ||
2912 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2913 | n_channels++; | |
2914 | /* | |
2915 | * Some hardware has a limited channel list for | |
2916 | * scanning, and it is pretty much nonsensical | |
2917 | * to scan for a channel twice, so disallow that | |
2918 | * and don't require drivers to check that the | |
2919 | * channel list they get isn't longer than what | |
2920 | * they can scan, as long as they can scan all | |
2921 | * the channels they registered at once. | |
2922 | */ | |
2923 | nla_for_each_nested(attr2, freqs, tmp2) | |
2924 | if (attr1 != attr2 && | |
2925 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2926 | return 0; | |
2927 | } | |
2928 | ||
2929 | return n_channels; | |
2930 | } | |
2931 | ||
2a519311 JB |
2932 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2933 | { | |
79c97e97 | 2934 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
2935 | struct net_device *dev; |
2936 | struct cfg80211_scan_request *request; | |
2937 | struct cfg80211_ssid *ssid; | |
2938 | struct ieee80211_channel *channel; | |
2939 | struct nlattr *attr; | |
2940 | struct wiphy *wiphy; | |
83f5e2cf | 2941 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2942 | enum ieee80211_band band; |
70692ad2 | 2943 | size_t ie_len; |
2a519311 | 2944 | |
f4a11bb0 JB |
2945 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2946 | return -EINVAL; | |
2947 | ||
3b85875a JB |
2948 | rtnl_lock(); |
2949 | ||
79c97e97 | 2950 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
2a519311 | 2951 | if (err) |
3b85875a | 2952 | goto out_rtnl; |
2a519311 | 2953 | |
79c97e97 | 2954 | wiphy = &rdev->wiphy; |
2a519311 | 2955 | |
79c97e97 | 2956 | if (!rdev->ops->scan) { |
2a519311 JB |
2957 | err = -EOPNOTSUPP; |
2958 | goto out; | |
2959 | } | |
2960 | ||
35a8efe1 JM |
2961 | if (!netif_running(dev)) { |
2962 | err = -ENETDOWN; | |
2963 | goto out; | |
2964 | } | |
2965 | ||
79c97e97 | 2966 | if (rdev->scan_req) { |
2a519311 | 2967 | err = -EBUSY; |
3b85875a | 2968 | goto out; |
2a519311 JB |
2969 | } |
2970 | ||
2971 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2972 | n_channels = validate_scan_freqs( |
2973 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
2974 | if (!n_channels) { |
2975 | err = -EINVAL; | |
3b85875a | 2976 | goto out; |
2a519311 JB |
2977 | } |
2978 | } else { | |
83f5e2cf JB |
2979 | n_channels = 0; |
2980 | ||
2a519311 JB |
2981 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2982 | if (wiphy->bands[band]) | |
2983 | n_channels += wiphy->bands[band]->n_channels; | |
2984 | } | |
2985 | ||
2986 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2987 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2988 | n_ssids++; | |
2989 | ||
2990 | if (n_ssids > wiphy->max_scan_ssids) { | |
2991 | err = -EINVAL; | |
3b85875a | 2992 | goto out; |
2a519311 JB |
2993 | } |
2994 | ||
70692ad2 JM |
2995 | if (info->attrs[NL80211_ATTR_IE]) |
2996 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2997 | else | |
2998 | ie_len = 0; | |
2999 | ||
18a83659 JB |
3000 | if (ie_len > wiphy->max_scan_ie_len) { |
3001 | err = -EINVAL; | |
3002 | goto out; | |
3003 | } | |
3004 | ||
2a519311 JB |
3005 | request = kzalloc(sizeof(*request) |
3006 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3007 | + sizeof(channel) * n_channels |
3008 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3009 | if (!request) { |
3010 | err = -ENOMEM; | |
3b85875a | 3011 | goto out; |
2a519311 JB |
3012 | } |
3013 | ||
3014 | request->channels = (void *)((char *)request + sizeof(*request)); | |
3015 | request->n_channels = n_channels; | |
3016 | if (n_ssids) | |
3017 | request->ssids = (void *)(request->channels + n_channels); | |
3018 | request->n_ssids = n_ssids; | |
70692ad2 JM |
3019 | if (ie_len) { |
3020 | if (request->ssids) | |
3021 | request->ie = (void *)(request->ssids + n_ssids); | |
3022 | else | |
3023 | request->ie = (void *)(request->channels + n_channels); | |
3024 | } | |
2a519311 JB |
3025 | |
3026 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
3027 | /* user specified, bail out if channel not found */ | |
3028 | request->n_channels = n_channels; | |
3029 | i = 0; | |
3030 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { | |
3031 | request->channels[i] = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3032 | if (!request->channels[i]) { | |
3033 | err = -EINVAL; | |
3034 | goto out_free; | |
3035 | } | |
3036 | i++; | |
3037 | } | |
3038 | } else { | |
3039 | /* all channels */ | |
3040 | i = 0; | |
3041 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
3042 | int j; | |
3043 | if (!wiphy->bands[band]) | |
3044 | continue; | |
3045 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
3046 | request->channels[i] = &wiphy->bands[band]->channels[j]; | |
3047 | i++; | |
3048 | } | |
3049 | } | |
3050 | } | |
3051 | ||
3052 | i = 0; | |
3053 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3054 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3055 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3056 | err = -EINVAL; | |
3057 | goto out_free; | |
3058 | } | |
3059 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3060 | request->ssids[i].ssid_len = nla_len(attr); | |
3061 | i++; | |
3062 | } | |
3063 | } | |
3064 | ||
70692ad2 JM |
3065 | if (info->attrs[NL80211_ATTR_IE]) { |
3066 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3067 | memcpy((void *)request->ie, |
3068 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3069 | request->ie_len); |
3070 | } | |
3071 | ||
2a519311 | 3072 | request->ifidx = dev->ifindex; |
79c97e97 | 3073 | request->wiphy = &rdev->wiphy; |
2a519311 | 3074 | |
79c97e97 JB |
3075 | rdev->scan_req = request; |
3076 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3077 | |
a538e2d5 | 3078 | if (!err) |
79c97e97 | 3079 | nl80211_send_scan_start(rdev, dev); |
a538e2d5 | 3080 | |
2a519311 JB |
3081 | out_free: |
3082 | if (err) { | |
79c97e97 | 3083 | rdev->scan_req = NULL; |
2a519311 JB |
3084 | kfree(request); |
3085 | } | |
2a519311 | 3086 | out: |
79c97e97 | 3087 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3088 | dev_put(dev); |
3b85875a JB |
3089 | out_rtnl: |
3090 | rtnl_unlock(); | |
3091 | ||
2a519311 JB |
3092 | return err; |
3093 | } | |
3094 | ||
3095 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3096 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3097 | struct wireless_dev *wdev, |
3098 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3099 | { |
48ab905d | 3100 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3101 | void *hdr; |
3102 | struct nlattr *bss; | |
48ab905d JB |
3103 | int i; |
3104 | ||
3105 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3106 | |
3107 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3108 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3109 | if (!hdr) | |
3110 | return -1; | |
3111 | ||
3112 | NLA_PUT_U32(msg, NL80211_ATTR_SCAN_GENERATION, | |
3113 | rdev->bss_generation); | |
48ab905d | 3114 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3115 | |
3116 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3117 | if (!bss) | |
3118 | goto nla_put_failure; | |
3119 | if (!is_zero_ether_addr(res->bssid)) | |
3120 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3121 | if (res->information_elements && res->len_information_elements) | |
3122 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3123 | res->len_information_elements, | |
3124 | res->information_elements); | |
3125 | if (res->tsf) | |
3126 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3127 | if (res->beacon_interval) | |
3128 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3129 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3130 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
3131 | ||
77965c97 | 3132 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3133 | case CFG80211_SIGNAL_TYPE_MBM: |
3134 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3135 | break; | |
3136 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3137 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3138 | break; | |
3139 | default: | |
3140 | break; | |
3141 | } | |
3142 | ||
48ab905d JB |
3143 | switch (wdev->iftype) { |
3144 | case NL80211_IFTYPE_STATION: | |
3145 | if (intbss == wdev->current_bss) | |
3146 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3147 | NL80211_BSS_STATUS_ASSOCIATED); | |
3148 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3149 | if (intbss != wdev->auth_bsses[i]) | |
3150 | continue; | |
3151 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3152 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3153 | break; | |
3154 | } | |
3155 | break; | |
3156 | case NL80211_IFTYPE_ADHOC: | |
3157 | if (intbss == wdev->current_bss) | |
3158 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3159 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3160 | break; | |
3161 | default: | |
3162 | break; | |
3163 | } | |
3164 | ||
2a519311 JB |
3165 | nla_nest_end(msg, bss); |
3166 | ||
3167 | return genlmsg_end(msg, hdr); | |
3168 | ||
3169 | nla_put_failure: | |
3170 | genlmsg_cancel(msg, hdr); | |
3171 | return -EMSGSIZE; | |
3172 | } | |
3173 | ||
3174 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3175 | struct netlink_callback *cb) | |
3176 | { | |
48ab905d JB |
3177 | struct cfg80211_registered_device *rdev; |
3178 | struct net_device *dev; | |
2a519311 | 3179 | struct cfg80211_internal_bss *scan; |
48ab905d | 3180 | struct wireless_dev *wdev; |
2a519311 JB |
3181 | int ifidx = cb->args[0]; |
3182 | int start = cb->args[1], idx = 0; | |
3183 | int err; | |
3184 | ||
3185 | if (!ifidx) { | |
3186 | err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
3187 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
3188 | nl80211_policy); | |
3189 | if (err) | |
3190 | return err; | |
3191 | ||
3192 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
3193 | return -EINVAL; | |
3194 | ||
3195 | ifidx = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
3196 | if (!ifidx) | |
3197 | return -EINVAL; | |
3198 | cb->args[0] = ifidx; | |
3199 | } | |
3200 | ||
48ab905d JB |
3201 | dev = dev_get_by_index(&init_net, ifidx); |
3202 | if (!dev) | |
2a519311 JB |
3203 | return -ENODEV; |
3204 | ||
48ab905d JB |
3205 | rdev = cfg80211_get_dev_from_ifindex(ifidx); |
3206 | if (IS_ERR(rdev)) { | |
3207 | err = PTR_ERR(rdev); | |
2a519311 JB |
3208 | goto out_put_netdev; |
3209 | } | |
3210 | ||
48ab905d | 3211 | wdev = dev->ieee80211_ptr; |
2a519311 | 3212 | |
48ab905d JB |
3213 | wdev_lock(wdev); |
3214 | spin_lock_bh(&rdev->bss_lock); | |
3215 | cfg80211_bss_expire(rdev); | |
3216 | ||
3217 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3218 | if (++idx <= start) |
3219 | continue; | |
3220 | if (nl80211_send_bss(skb, | |
3221 | NETLINK_CB(cb->skb).pid, | |
3222 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3223 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3224 | idx--; |
3225 | goto out; | |
3226 | } | |
3227 | } | |
3228 | ||
3229 | out: | |
48ab905d JB |
3230 | spin_unlock_bh(&rdev->bss_lock); |
3231 | wdev_unlock(wdev); | |
2a519311 JB |
3232 | |
3233 | cb->args[1] = idx; | |
3234 | err = skb->len; | |
48ab905d | 3235 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3236 | out_put_netdev: |
48ab905d | 3237 | dev_put(dev); |
2a519311 JB |
3238 | |
3239 | return err; | |
3240 | } | |
3241 | ||
255e737e JM |
3242 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3243 | { | |
b23aa676 SO |
3244 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3245 | } | |
3246 | ||
3247 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3248 | { | |
3249 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3250 | NL80211_WPA_VERSION_2)); | |
3251 | } | |
3252 | ||
3253 | static bool nl80211_valid_akm_suite(u32 akm) | |
3254 | { | |
3255 | return akm == WLAN_AKM_SUITE_8021X || | |
3256 | akm == WLAN_AKM_SUITE_PSK; | |
3257 | } | |
3258 | ||
3259 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3260 | { | |
3261 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3262 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3263 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3264 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3265 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3266 | } |
3267 | ||
b23aa676 | 3268 | |
636a5d36 JM |
3269 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3270 | { | |
79c97e97 | 3271 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3272 | struct net_device *dev; |
19957bb3 JB |
3273 | struct ieee80211_channel *chan; |
3274 | const u8 *bssid, *ssid, *ie = NULL; | |
3275 | int err, ssid_len, ie_len = 0; | |
3276 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3277 | struct key_parse key; |
636a5d36 | 3278 | |
f4a11bb0 JB |
3279 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3280 | return -EINVAL; | |
3281 | ||
3282 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3283 | return -EINVAL; | |
3284 | ||
1778092e JM |
3285 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3286 | return -EINVAL; | |
3287 | ||
19957bb3 JB |
3288 | if (!info->attrs[NL80211_ATTR_SSID]) |
3289 | return -EINVAL; | |
3290 | ||
3291 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3292 | return -EINVAL; | |
3293 | ||
fffd0934 JB |
3294 | err = nl80211_parse_key(info, &key); |
3295 | if (err) | |
3296 | return err; | |
3297 | ||
3298 | if (key.idx >= 0) { | |
3299 | if (!key.p.key || !key.p.key_len) | |
3300 | return -EINVAL; | |
3301 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3302 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3303 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3304 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3305 | return -EINVAL; | |
3306 | if (key.idx > 4) | |
3307 | return -EINVAL; | |
3308 | } else { | |
3309 | key.p.key_len = 0; | |
3310 | key.p.key = NULL; | |
3311 | } | |
3312 | ||
636a5d36 JM |
3313 | rtnl_lock(); |
3314 | ||
79c97e97 | 3315 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
636a5d36 JM |
3316 | if (err) |
3317 | goto unlock_rtnl; | |
3318 | ||
79c97e97 | 3319 | if (!rdev->ops->auth) { |
636a5d36 JM |
3320 | err = -EOPNOTSUPP; |
3321 | goto out; | |
3322 | } | |
3323 | ||
eec60b03 JM |
3324 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3325 | err = -EOPNOTSUPP; | |
3326 | goto out; | |
3327 | } | |
3328 | ||
35a8efe1 JM |
3329 | if (!netif_running(dev)) { |
3330 | err = -ENETDOWN; | |
3331 | goto out; | |
3332 | } | |
3333 | ||
19957bb3 | 3334 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3335 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3336 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3337 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3338 | err = -EINVAL; | |
3339 | goto out; | |
636a5d36 JM |
3340 | } |
3341 | ||
19957bb3 JB |
3342 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3343 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3344 | |
3345 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3346 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3347 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3348 | } |
3349 | ||
19957bb3 JB |
3350 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3351 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3352 | err = -EINVAL; |
3353 | goto out; | |
636a5d36 JM |
3354 | } |
3355 | ||
79c97e97 | 3356 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 JB |
3357 | ssid, ssid_len, ie, ie_len, |
3358 | key.p.key, key.p.key_len, key.idx); | |
636a5d36 JM |
3359 | |
3360 | out: | |
79c97e97 | 3361 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3362 | dev_put(dev); |
3363 | unlock_rtnl: | |
3364 | rtnl_unlock(); | |
3365 | return err; | |
3366 | } | |
3367 | ||
b23aa676 | 3368 | static int nl80211_crypto_settings(struct genl_info *info, |
3dc27d25 JB |
3369 | struct cfg80211_crypto_settings *settings, |
3370 | int cipher_limit) | |
b23aa676 SO |
3371 | { |
3372 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; | |
3373 | ||
3374 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
3375 | void *data; | |
3376 | int len, i; | |
3377 | ||
3378 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3379 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3380 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3381 | ||
3382 | if (len % sizeof(u32)) | |
3383 | return -EINVAL; | |
3384 | ||
3dc27d25 | 3385 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3386 | return -EINVAL; |
3387 | ||
3388 | memcpy(settings->ciphers_pairwise, data, len); | |
3389 | ||
3390 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3391 | if (!nl80211_valid_cipher_suite( | |
3392 | settings->ciphers_pairwise[i])) | |
3393 | return -EINVAL; | |
3394 | } | |
3395 | ||
3396 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3397 | settings->cipher_group = | |
3398 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3399 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3400 | return -EINVAL; | |
3401 | } | |
3402 | ||
3403 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3404 | settings->wpa_versions = | |
3405 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3406 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3407 | return -EINVAL; | |
3408 | } | |
3409 | ||
3410 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3411 | void *data; | |
3412 | int len, i; | |
3413 | ||
3414 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3415 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3416 | settings->n_akm_suites = len / sizeof(u32); | |
3417 | ||
3418 | if (len % sizeof(u32)) | |
3419 | return -EINVAL; | |
3420 | ||
3421 | memcpy(settings->akm_suites, data, len); | |
3422 | ||
3423 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3424 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3425 | return -EINVAL; | |
3426 | } | |
3427 | ||
3428 | return 0; | |
3429 | } | |
3430 | ||
636a5d36 JM |
3431 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3432 | { | |
19957bb3 | 3433 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3434 | struct net_device *dev; |
19957bb3 JB |
3435 | struct cfg80211_crypto_settings crypto; |
3436 | struct ieee80211_channel *chan; | |
3e5d7649 | 3437 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3438 | int err, ssid_len, ie_len = 0; |
3439 | bool use_mfp = false; | |
636a5d36 | 3440 | |
f4a11bb0 JB |
3441 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3442 | return -EINVAL; | |
3443 | ||
3444 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3445 | !info->attrs[NL80211_ATTR_SSID] || |
3446 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3447 | return -EINVAL; |
3448 | ||
636a5d36 JM |
3449 | rtnl_lock(); |
3450 | ||
79c97e97 | 3451 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
636a5d36 JM |
3452 | if (err) |
3453 | goto unlock_rtnl; | |
3454 | ||
19957bb3 | 3455 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3456 | err = -EOPNOTSUPP; |
3457 | goto out; | |
3458 | } | |
3459 | ||
eec60b03 JM |
3460 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3461 | err = -EOPNOTSUPP; | |
3462 | goto out; | |
3463 | } | |
3464 | ||
35a8efe1 JM |
3465 | if (!netif_running(dev)) { |
3466 | err = -ENETDOWN; | |
3467 | goto out; | |
3468 | } | |
3469 | ||
19957bb3 | 3470 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3471 | |
19957bb3 JB |
3472 | chan = ieee80211_get_channel(&rdev->wiphy, |
3473 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3474 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3475 | err = -EINVAL; | |
3476 | goto out; | |
636a5d36 JM |
3477 | } |
3478 | ||
19957bb3 JB |
3479 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3480 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3481 | |
3482 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3483 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3484 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3485 | } |
3486 | ||
dc6382ce | 3487 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3488 | enum nl80211_mfp mfp = |
dc6382ce | 3489 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3490 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3491 | use_mfp = true; |
4f5dadce | 3492 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3493 | err = -EINVAL; |
3494 | goto out; | |
3495 | } | |
3496 | } | |
3497 | ||
3e5d7649 JB |
3498 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3499 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3500 | ||
3dc27d25 | 3501 | err = nl80211_crypto_settings(info, &crypto, 1); |
b23aa676 | 3502 | if (!err) |
3e5d7649 JB |
3503 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3504 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3505 | &crypto); |
636a5d36 JM |
3506 | |
3507 | out: | |
4d0c8aea | 3508 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3509 | dev_put(dev); |
3510 | unlock_rtnl: | |
3511 | rtnl_unlock(); | |
3512 | return err; | |
3513 | } | |
3514 | ||
3515 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3516 | { | |
79c97e97 | 3517 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3518 | struct net_device *dev; |
19957bb3 JB |
3519 | const u8 *ie = NULL, *bssid; |
3520 | int err, ie_len = 0; | |
3521 | u16 reason_code; | |
636a5d36 | 3522 | |
f4a11bb0 JB |
3523 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3524 | return -EINVAL; | |
3525 | ||
3526 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3527 | return -EINVAL; | |
3528 | ||
3529 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3530 | return -EINVAL; | |
3531 | ||
636a5d36 JM |
3532 | rtnl_lock(); |
3533 | ||
79c97e97 | 3534 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
636a5d36 JM |
3535 | if (err) |
3536 | goto unlock_rtnl; | |
3537 | ||
79c97e97 | 3538 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3539 | err = -EOPNOTSUPP; |
3540 | goto out; | |
3541 | } | |
3542 | ||
eec60b03 JM |
3543 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3544 | err = -EOPNOTSUPP; | |
3545 | goto out; | |
3546 | } | |
3547 | ||
35a8efe1 JM |
3548 | if (!netif_running(dev)) { |
3549 | err = -ENETDOWN; | |
3550 | goto out; | |
3551 | } | |
3552 | ||
19957bb3 | 3553 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3554 | |
19957bb3 JB |
3555 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3556 | if (reason_code == 0) { | |
f4a11bb0 JB |
3557 | /* Reason Code 0 is reserved */ |
3558 | err = -EINVAL; | |
3559 | goto out; | |
255e737e | 3560 | } |
636a5d36 JM |
3561 | |
3562 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3563 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3564 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3565 | } |
3566 | ||
79c97e97 | 3567 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3568 | |
3569 | out: | |
79c97e97 | 3570 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3571 | dev_put(dev); |
3572 | unlock_rtnl: | |
3573 | rtnl_unlock(); | |
3574 | return err; | |
3575 | } | |
3576 | ||
3577 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3578 | { | |
79c97e97 | 3579 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3580 | struct net_device *dev; |
19957bb3 JB |
3581 | const u8 *ie = NULL, *bssid; |
3582 | int err, ie_len = 0; | |
3583 | u16 reason_code; | |
636a5d36 | 3584 | |
f4a11bb0 JB |
3585 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3586 | return -EINVAL; | |
3587 | ||
3588 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3589 | return -EINVAL; | |
3590 | ||
3591 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3592 | return -EINVAL; | |
3593 | ||
636a5d36 JM |
3594 | rtnl_lock(); |
3595 | ||
79c97e97 | 3596 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
636a5d36 JM |
3597 | if (err) |
3598 | goto unlock_rtnl; | |
3599 | ||
79c97e97 | 3600 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3601 | err = -EOPNOTSUPP; |
3602 | goto out; | |
3603 | } | |
3604 | ||
eec60b03 JM |
3605 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3606 | err = -EOPNOTSUPP; | |
3607 | goto out; | |
3608 | } | |
3609 | ||
35a8efe1 JM |
3610 | if (!netif_running(dev)) { |
3611 | err = -ENETDOWN; | |
3612 | goto out; | |
3613 | } | |
3614 | ||
19957bb3 | 3615 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3616 | |
19957bb3 JB |
3617 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3618 | if (reason_code == 0) { | |
f4a11bb0 JB |
3619 | /* Reason Code 0 is reserved */ |
3620 | err = -EINVAL; | |
3621 | goto out; | |
255e737e | 3622 | } |
636a5d36 JM |
3623 | |
3624 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3625 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3626 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3627 | } |
3628 | ||
79c97e97 | 3629 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3630 | |
3631 | out: | |
79c97e97 | 3632 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3633 | dev_put(dev); |
3634 | unlock_rtnl: | |
3635 | rtnl_unlock(); | |
3636 | return err; | |
3637 | } | |
3638 | ||
04a773ad JB |
3639 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3640 | { | |
79c97e97 | 3641 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3642 | struct net_device *dev; |
3643 | struct cfg80211_ibss_params ibss; | |
3644 | struct wiphy *wiphy; | |
fffd0934 | 3645 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3646 | int err; |
3647 | ||
8e30bc55 JB |
3648 | memset(&ibss, 0, sizeof(ibss)); |
3649 | ||
04a773ad JB |
3650 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3651 | return -EINVAL; | |
3652 | ||
3653 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3654 | !info->attrs[NL80211_ATTR_SSID] || | |
3655 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3656 | return -EINVAL; | |
3657 | ||
8e30bc55 JB |
3658 | ibss.beacon_interval = 100; |
3659 | ||
3660 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3661 | ibss.beacon_interval = | |
3662 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3663 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3664 | return -EINVAL; | |
3665 | } | |
3666 | ||
04a773ad JB |
3667 | rtnl_lock(); |
3668 | ||
79c97e97 | 3669 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
04a773ad JB |
3670 | if (err) |
3671 | goto unlock_rtnl; | |
3672 | ||
79c97e97 | 3673 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
3674 | err = -EOPNOTSUPP; |
3675 | goto out; | |
3676 | } | |
3677 | ||
3678 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3679 | err = -EOPNOTSUPP; | |
3680 | goto out; | |
3681 | } | |
3682 | ||
3683 | if (!netif_running(dev)) { | |
3684 | err = -ENETDOWN; | |
3685 | goto out; | |
3686 | } | |
3687 | ||
79c97e97 | 3688 | wiphy = &rdev->wiphy; |
04a773ad JB |
3689 | |
3690 | if (info->attrs[NL80211_ATTR_MAC]) | |
3691 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3692 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3693 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3694 | ||
3695 | if (info->attrs[NL80211_ATTR_IE]) { | |
3696 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3697 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3698 | } | |
3699 | ||
3700 | ibss.channel = ieee80211_get_channel(wiphy, | |
3701 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3702 | if (!ibss.channel || | |
3703 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
3704 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3705 | err = -EINVAL; | |
3706 | goto out; | |
3707 | } | |
3708 | ||
3709 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3710 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3711 | ||
3712 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
3713 | connkeys = nl80211_parse_connkeys(rdev, | |
3714 | info->attrs[NL80211_ATTR_KEYS]); | |
3715 | if (IS_ERR(connkeys)) { | |
3716 | err = PTR_ERR(connkeys); | |
3717 | connkeys = NULL; | |
3718 | goto out; | |
3719 | } | |
3720 | } | |
04a773ad | 3721 | |
fffd0934 | 3722 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
3723 | |
3724 | out: | |
79c97e97 | 3725 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3726 | dev_put(dev); |
3727 | unlock_rtnl: | |
fffd0934 JB |
3728 | if (err) |
3729 | kfree(connkeys); | |
04a773ad JB |
3730 | rtnl_unlock(); |
3731 | return err; | |
3732 | } | |
3733 | ||
3734 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3735 | { | |
79c97e97 | 3736 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3737 | struct net_device *dev; |
3738 | int err; | |
3739 | ||
3740 | rtnl_lock(); | |
3741 | ||
79c97e97 | 3742 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
04a773ad JB |
3743 | if (err) |
3744 | goto unlock_rtnl; | |
3745 | ||
79c97e97 | 3746 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
3747 | err = -EOPNOTSUPP; |
3748 | goto out; | |
3749 | } | |
3750 | ||
3751 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3752 | err = -EOPNOTSUPP; | |
3753 | goto out; | |
3754 | } | |
3755 | ||
3756 | if (!netif_running(dev)) { | |
3757 | err = -ENETDOWN; | |
3758 | goto out; | |
3759 | } | |
3760 | ||
79c97e97 | 3761 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3762 | |
3763 | out: | |
79c97e97 | 3764 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3765 | dev_put(dev); |
3766 | unlock_rtnl: | |
3767 | rtnl_unlock(); | |
3768 | return err; | |
3769 | } | |
3770 | ||
aff89a9b JB |
3771 | #ifdef CONFIG_NL80211_TESTMODE |
3772 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3773 | .name = "testmode", | |
3774 | }; | |
3775 | ||
3776 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3777 | { | |
3778 | struct cfg80211_registered_device *rdev; | |
3779 | int err; | |
3780 | ||
3781 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3782 | return -EINVAL; | |
3783 | ||
3784 | rtnl_lock(); | |
3785 | ||
3786 | rdev = cfg80211_get_dev_from_info(info); | |
3787 | if (IS_ERR(rdev)) { | |
3788 | err = PTR_ERR(rdev); | |
3789 | goto unlock_rtnl; | |
3790 | } | |
3791 | ||
3792 | err = -EOPNOTSUPP; | |
3793 | if (rdev->ops->testmode_cmd) { | |
3794 | rdev->testmode_info = info; | |
3795 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3796 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3797 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3798 | rdev->testmode_info = NULL; | |
3799 | } | |
3800 | ||
4d0c8aea | 3801 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
3802 | |
3803 | unlock_rtnl: | |
3804 | rtnl_unlock(); | |
3805 | return err; | |
3806 | } | |
3807 | ||
3808 | static struct sk_buff * | |
3809 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3810 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3811 | { | |
3812 | struct sk_buff *skb; | |
3813 | void *hdr; | |
3814 | struct nlattr *data; | |
3815 | ||
3816 | skb = nlmsg_new(approxlen + 100, gfp); | |
3817 | if (!skb) | |
3818 | return NULL; | |
3819 | ||
3820 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3821 | if (!hdr) { | |
3822 | kfree_skb(skb); | |
3823 | return NULL; | |
3824 | } | |
3825 | ||
3826 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3827 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3828 | ||
3829 | ((void **)skb->cb)[0] = rdev; | |
3830 | ((void **)skb->cb)[1] = hdr; | |
3831 | ((void **)skb->cb)[2] = data; | |
3832 | ||
3833 | return skb; | |
3834 | ||
3835 | nla_put_failure: | |
3836 | kfree_skb(skb); | |
3837 | return NULL; | |
3838 | } | |
3839 | ||
3840 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3841 | int approxlen) | |
3842 | { | |
3843 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3844 | ||
3845 | if (WARN_ON(!rdev->testmode_info)) | |
3846 | return NULL; | |
3847 | ||
3848 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3849 | rdev->testmode_info->snd_pid, | |
3850 | rdev->testmode_info->snd_seq, | |
3851 | GFP_KERNEL); | |
3852 | } | |
3853 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3854 | ||
3855 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3856 | { | |
3857 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3858 | void *hdr = ((void **)skb->cb)[1]; | |
3859 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3860 | ||
3861 | if (WARN_ON(!rdev->testmode_info)) { | |
3862 | kfree_skb(skb); | |
3863 | return -EINVAL; | |
3864 | } | |
3865 | ||
3866 | nla_nest_end(skb, data); | |
3867 | genlmsg_end(skb, hdr); | |
3868 | return genlmsg_reply(skb, rdev->testmode_info); | |
3869 | } | |
3870 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3871 | ||
3872 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
3873 | int approxlen, gfp_t gfp) | |
3874 | { | |
3875 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3876 | ||
3877 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
3878 | } | |
3879 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
3880 | ||
3881 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
3882 | { | |
3883 | void *hdr = ((void **)skb->cb)[1]; | |
3884 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3885 | ||
3886 | nla_nest_end(skb, data); | |
3887 | genlmsg_end(skb, hdr); | |
3888 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
3889 | } | |
3890 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
3891 | #endif | |
3892 | ||
b23aa676 SO |
3893 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
3894 | { | |
79c97e97 | 3895 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
3896 | struct net_device *dev; |
3897 | struct cfg80211_connect_params connect; | |
3898 | struct wiphy *wiphy; | |
fffd0934 | 3899 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
3900 | int err; |
3901 | ||
3902 | memset(&connect, 0, sizeof(connect)); | |
3903 | ||
3904 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3905 | return -EINVAL; | |
3906 | ||
3907 | if (!info->attrs[NL80211_ATTR_SSID] || | |
3908 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3909 | return -EINVAL; | |
3910 | ||
3911 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3912 | connect.auth_type = | |
3913 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3914 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
3915 | return -EINVAL; | |
3916 | } else | |
3917 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3918 | ||
3919 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
3920 | ||
3dc27d25 JB |
3921 | err = nl80211_crypto_settings(info, &connect.crypto, |
3922 | NL80211_MAX_NR_CIPHER_SUITES); | |
b23aa676 SO |
3923 | if (err) |
3924 | return err; | |
3925 | rtnl_lock(); | |
3926 | ||
79c97e97 | 3927 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
b23aa676 SO |
3928 | if (err) |
3929 | goto unlock_rtnl; | |
3930 | ||
3931 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
3932 | err = -EOPNOTSUPP; | |
3933 | goto out; | |
3934 | } | |
3935 | ||
3936 | if (!netif_running(dev)) { | |
3937 | err = -ENETDOWN; | |
3938 | goto out; | |
3939 | } | |
3940 | ||
79c97e97 | 3941 | wiphy = &rdev->wiphy; |
b23aa676 | 3942 | |
b23aa676 SO |
3943 | if (info->attrs[NL80211_ATTR_MAC]) |
3944 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3945 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3946 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3947 | ||
3948 | if (info->attrs[NL80211_ATTR_IE]) { | |
3949 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3950 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3951 | } | |
3952 | ||
3953 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3954 | connect.channel = | |
3955 | ieee80211_get_channel(wiphy, | |
3956 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3957 | if (!connect.channel || | |
3958 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3959 | err = -EINVAL; | |
3960 | goto out; | |
3961 | } | |
3962 | } | |
3963 | ||
fffd0934 JB |
3964 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3965 | connkeys = nl80211_parse_connkeys(rdev, | |
3966 | info->attrs[NL80211_ATTR_KEYS]); | |
3967 | if (IS_ERR(connkeys)) { | |
3968 | err = PTR_ERR(connkeys); | |
3969 | connkeys = NULL; | |
3970 | goto out; | |
3971 | } | |
3972 | } | |
3973 | ||
3974 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
3975 | |
3976 | out: | |
79c97e97 | 3977 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
3978 | dev_put(dev); |
3979 | unlock_rtnl: | |
fffd0934 JB |
3980 | if (err) |
3981 | kfree(connkeys); | |
b23aa676 SO |
3982 | rtnl_unlock(); |
3983 | return err; | |
3984 | } | |
3985 | ||
3986 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
3987 | { | |
79c97e97 | 3988 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
3989 | struct net_device *dev; |
3990 | int err; | |
3991 | u16 reason; | |
3992 | ||
3993 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3994 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
3995 | else | |
3996 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
3997 | ||
3998 | if (reason == 0) | |
3999 | return -EINVAL; | |
4000 | ||
4001 | rtnl_lock(); | |
4002 | ||
79c97e97 | 4003 | err = get_rdev_dev_by_info_ifindex(info->attrs, &rdev, &dev); |
b23aa676 SO |
4004 | if (err) |
4005 | goto unlock_rtnl; | |
4006 | ||
4007 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4008 | err = -EOPNOTSUPP; | |
4009 | goto out; | |
4010 | } | |
4011 | ||
4012 | if (!netif_running(dev)) { | |
4013 | err = -ENETDOWN; | |
4014 | goto out; | |
4015 | } | |
4016 | ||
79c97e97 | 4017 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4018 | |
4019 | out: | |
79c97e97 | 4020 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4021 | dev_put(dev); |
4022 | unlock_rtnl: | |
4023 | rtnl_unlock(); | |
4024 | return err; | |
4025 | } | |
4026 | ||
55682965 JB |
4027 | static struct genl_ops nl80211_ops[] = { |
4028 | { | |
4029 | .cmd = NL80211_CMD_GET_WIPHY, | |
4030 | .doit = nl80211_get_wiphy, | |
4031 | .dumpit = nl80211_dump_wiphy, | |
4032 | .policy = nl80211_policy, | |
4033 | /* can be retrieved by unprivileged users */ | |
4034 | }, | |
4035 | { | |
4036 | .cmd = NL80211_CMD_SET_WIPHY, | |
4037 | .doit = nl80211_set_wiphy, | |
4038 | .policy = nl80211_policy, | |
4039 | .flags = GENL_ADMIN_PERM, | |
4040 | }, | |
4041 | { | |
4042 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4043 | .doit = nl80211_get_interface, | |
4044 | .dumpit = nl80211_dump_interface, | |
4045 | .policy = nl80211_policy, | |
4046 | /* can be retrieved by unprivileged users */ | |
4047 | }, | |
4048 | { | |
4049 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4050 | .doit = nl80211_set_interface, | |
4051 | .policy = nl80211_policy, | |
4052 | .flags = GENL_ADMIN_PERM, | |
4053 | }, | |
4054 | { | |
4055 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4056 | .doit = nl80211_new_interface, | |
4057 | .policy = nl80211_policy, | |
4058 | .flags = GENL_ADMIN_PERM, | |
4059 | }, | |
4060 | { | |
4061 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4062 | .doit = nl80211_del_interface, | |
4063 | .policy = nl80211_policy, | |
41ade00f JB |
4064 | .flags = GENL_ADMIN_PERM, |
4065 | }, | |
4066 | { | |
4067 | .cmd = NL80211_CMD_GET_KEY, | |
4068 | .doit = nl80211_get_key, | |
4069 | .policy = nl80211_policy, | |
4070 | .flags = GENL_ADMIN_PERM, | |
4071 | }, | |
4072 | { | |
4073 | .cmd = NL80211_CMD_SET_KEY, | |
4074 | .doit = nl80211_set_key, | |
4075 | .policy = nl80211_policy, | |
4076 | .flags = GENL_ADMIN_PERM, | |
4077 | }, | |
4078 | { | |
4079 | .cmd = NL80211_CMD_NEW_KEY, | |
4080 | .doit = nl80211_new_key, | |
4081 | .policy = nl80211_policy, | |
4082 | .flags = GENL_ADMIN_PERM, | |
4083 | }, | |
4084 | { | |
4085 | .cmd = NL80211_CMD_DEL_KEY, | |
4086 | .doit = nl80211_del_key, | |
4087 | .policy = nl80211_policy, | |
55682965 JB |
4088 | .flags = GENL_ADMIN_PERM, |
4089 | }, | |
ed1b6cc7 JB |
4090 | { |
4091 | .cmd = NL80211_CMD_SET_BEACON, | |
4092 | .policy = nl80211_policy, | |
4093 | .flags = GENL_ADMIN_PERM, | |
4094 | .doit = nl80211_addset_beacon, | |
4095 | }, | |
4096 | { | |
4097 | .cmd = NL80211_CMD_NEW_BEACON, | |
4098 | .policy = nl80211_policy, | |
4099 | .flags = GENL_ADMIN_PERM, | |
4100 | .doit = nl80211_addset_beacon, | |
4101 | }, | |
4102 | { | |
4103 | .cmd = NL80211_CMD_DEL_BEACON, | |
4104 | .policy = nl80211_policy, | |
4105 | .flags = GENL_ADMIN_PERM, | |
4106 | .doit = nl80211_del_beacon, | |
4107 | }, | |
5727ef1b JB |
4108 | { |
4109 | .cmd = NL80211_CMD_GET_STATION, | |
4110 | .doit = nl80211_get_station, | |
2ec600d6 | 4111 | .dumpit = nl80211_dump_station, |
5727ef1b | 4112 | .policy = nl80211_policy, |
5727ef1b JB |
4113 | }, |
4114 | { | |
4115 | .cmd = NL80211_CMD_SET_STATION, | |
4116 | .doit = nl80211_set_station, | |
4117 | .policy = nl80211_policy, | |
4118 | .flags = GENL_ADMIN_PERM, | |
4119 | }, | |
4120 | { | |
4121 | .cmd = NL80211_CMD_NEW_STATION, | |
4122 | .doit = nl80211_new_station, | |
4123 | .policy = nl80211_policy, | |
4124 | .flags = GENL_ADMIN_PERM, | |
4125 | }, | |
4126 | { | |
4127 | .cmd = NL80211_CMD_DEL_STATION, | |
4128 | .doit = nl80211_del_station, | |
4129 | .policy = nl80211_policy, | |
2ec600d6 LCC |
4130 | .flags = GENL_ADMIN_PERM, |
4131 | }, | |
4132 | { | |
4133 | .cmd = NL80211_CMD_GET_MPATH, | |
4134 | .doit = nl80211_get_mpath, | |
4135 | .dumpit = nl80211_dump_mpath, | |
4136 | .policy = nl80211_policy, | |
4137 | .flags = GENL_ADMIN_PERM, | |
4138 | }, | |
4139 | { | |
4140 | .cmd = NL80211_CMD_SET_MPATH, | |
4141 | .doit = nl80211_set_mpath, | |
4142 | .policy = nl80211_policy, | |
4143 | .flags = GENL_ADMIN_PERM, | |
4144 | }, | |
4145 | { | |
4146 | .cmd = NL80211_CMD_NEW_MPATH, | |
4147 | .doit = nl80211_new_mpath, | |
4148 | .policy = nl80211_policy, | |
4149 | .flags = GENL_ADMIN_PERM, | |
4150 | }, | |
4151 | { | |
4152 | .cmd = NL80211_CMD_DEL_MPATH, | |
4153 | .doit = nl80211_del_mpath, | |
4154 | .policy = nl80211_policy, | |
9f1ba906 JM |
4155 | .flags = GENL_ADMIN_PERM, |
4156 | }, | |
4157 | { | |
4158 | .cmd = NL80211_CMD_SET_BSS, | |
4159 | .doit = nl80211_set_bss, | |
4160 | .policy = nl80211_policy, | |
b2e1b302 LR |
4161 | .flags = GENL_ADMIN_PERM, |
4162 | }, | |
f130347c LR |
4163 | { |
4164 | .cmd = NL80211_CMD_GET_REG, | |
4165 | .doit = nl80211_get_reg, | |
4166 | .policy = nl80211_policy, | |
4167 | /* can be retrieved by unprivileged users */ | |
4168 | }, | |
b2e1b302 LR |
4169 | { |
4170 | .cmd = NL80211_CMD_SET_REG, | |
4171 | .doit = nl80211_set_reg, | |
4172 | .policy = nl80211_policy, | |
4173 | .flags = GENL_ADMIN_PERM, | |
4174 | }, | |
4175 | { | |
4176 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4177 | .doit = nl80211_req_set_reg, | |
4178 | .policy = nl80211_policy, | |
93da9cc1 | 4179 | .flags = GENL_ADMIN_PERM, |
4180 | }, | |
4181 | { | |
4182 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4183 | .doit = nl80211_get_mesh_params, | |
4184 | .policy = nl80211_policy, | |
4185 | /* can be retrieved by unprivileged users */ | |
4186 | }, | |
4187 | { | |
4188 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4189 | .doit = nl80211_set_mesh_params, | |
4190 | .policy = nl80211_policy, | |
9aed3cc1 JM |
4191 | .flags = GENL_ADMIN_PERM, |
4192 | }, | |
2a519311 JB |
4193 | { |
4194 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4195 | .doit = nl80211_trigger_scan, | |
4196 | .policy = nl80211_policy, | |
4197 | .flags = GENL_ADMIN_PERM, | |
4198 | }, | |
4199 | { | |
4200 | .cmd = NL80211_CMD_GET_SCAN, | |
4201 | .policy = nl80211_policy, | |
4202 | .dumpit = nl80211_dump_scan, | |
4203 | }, | |
636a5d36 JM |
4204 | { |
4205 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4206 | .doit = nl80211_authenticate, | |
4207 | .policy = nl80211_policy, | |
4208 | .flags = GENL_ADMIN_PERM, | |
4209 | }, | |
4210 | { | |
4211 | .cmd = NL80211_CMD_ASSOCIATE, | |
4212 | .doit = nl80211_associate, | |
4213 | .policy = nl80211_policy, | |
4214 | .flags = GENL_ADMIN_PERM, | |
4215 | }, | |
4216 | { | |
4217 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4218 | .doit = nl80211_deauthenticate, | |
4219 | .policy = nl80211_policy, | |
4220 | .flags = GENL_ADMIN_PERM, | |
4221 | }, | |
4222 | { | |
4223 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4224 | .doit = nl80211_disassociate, | |
4225 | .policy = nl80211_policy, | |
4226 | .flags = GENL_ADMIN_PERM, | |
4227 | }, | |
04a773ad JB |
4228 | { |
4229 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4230 | .doit = nl80211_join_ibss, | |
4231 | .policy = nl80211_policy, | |
4232 | .flags = GENL_ADMIN_PERM, | |
4233 | }, | |
4234 | { | |
4235 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4236 | .doit = nl80211_leave_ibss, | |
4237 | .policy = nl80211_policy, | |
4238 | .flags = GENL_ADMIN_PERM, | |
4239 | }, | |
aff89a9b JB |
4240 | #ifdef CONFIG_NL80211_TESTMODE |
4241 | { | |
4242 | .cmd = NL80211_CMD_TESTMODE, | |
4243 | .doit = nl80211_testmode_do, | |
4244 | .policy = nl80211_policy, | |
4245 | .flags = GENL_ADMIN_PERM, | |
4246 | }, | |
4247 | #endif | |
b23aa676 SO |
4248 | { |
4249 | .cmd = NL80211_CMD_CONNECT, | |
4250 | .doit = nl80211_connect, | |
4251 | .policy = nl80211_policy, | |
4252 | .flags = GENL_ADMIN_PERM, | |
4253 | }, | |
4254 | { | |
4255 | .cmd = NL80211_CMD_DISCONNECT, | |
4256 | .doit = nl80211_disconnect, | |
4257 | .policy = nl80211_policy, | |
4258 | .flags = GENL_ADMIN_PERM, | |
4259 | }, | |
55682965 | 4260 | }; |
6039f6d2 JM |
4261 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
4262 | .name = "mlme", | |
4263 | }; | |
55682965 JB |
4264 | |
4265 | /* multicast groups */ | |
4266 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
4267 | .name = "config", | |
4268 | }; | |
2a519311 JB |
4269 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
4270 | .name = "scan", | |
4271 | }; | |
73d54c9e LR |
4272 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
4273 | .name = "regulatory", | |
4274 | }; | |
55682965 JB |
4275 | |
4276 | /* notification functions */ | |
4277 | ||
4278 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
4279 | { | |
4280 | struct sk_buff *msg; | |
4281 | ||
fd2120ca | 4282 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
4283 | if (!msg) |
4284 | return; | |
4285 | ||
4286 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
4287 | nlmsg_free(msg); | |
4288 | return; | |
4289 | } | |
4290 | ||
4291 | genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL); | |
4292 | } | |
4293 | ||
362a415d JB |
4294 | static int nl80211_add_scan_req(struct sk_buff *msg, |
4295 | struct cfg80211_registered_device *rdev) | |
4296 | { | |
4297 | struct cfg80211_scan_request *req = rdev->scan_req; | |
4298 | struct nlattr *nest; | |
4299 | int i; | |
4300 | ||
667503dd JB |
4301 | ASSERT_RDEV_LOCK(rdev); |
4302 | ||
362a415d JB |
4303 | if (WARN_ON(!req)) |
4304 | return 0; | |
4305 | ||
4306 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
4307 | if (!nest) | |
4308 | goto nla_put_failure; | |
4309 | for (i = 0; i < req->n_ssids; i++) | |
4310 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
4311 | nla_nest_end(msg, nest); | |
4312 | ||
4313 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
4314 | if (!nest) | |
4315 | goto nla_put_failure; | |
4316 | for (i = 0; i < req->n_channels; i++) | |
4317 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
4318 | nla_nest_end(msg, nest); | |
4319 | ||
4320 | if (req->ie) | |
4321 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
4322 | ||
4323 | return 0; | |
4324 | nla_put_failure: | |
4325 | return -ENOBUFS; | |
4326 | } | |
4327 | ||
a538e2d5 JB |
4328 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
4329 | struct cfg80211_registered_device *rdev, | |
4330 | struct net_device *netdev, | |
4331 | u32 pid, u32 seq, int flags, | |
4332 | u32 cmd) | |
2a519311 JB |
4333 | { |
4334 | void *hdr; | |
4335 | ||
4336 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
4337 | if (!hdr) | |
4338 | return -1; | |
4339 | ||
b5850a7a | 4340 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
4341 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
4342 | ||
362a415d JB |
4343 | /* ignore errors and send incomplete event anyway */ |
4344 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
4345 | |
4346 | return genlmsg_end(msg, hdr); | |
4347 | ||
4348 | nla_put_failure: | |
4349 | genlmsg_cancel(msg, hdr); | |
4350 | return -EMSGSIZE; | |
4351 | } | |
4352 | ||
a538e2d5 JB |
4353 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
4354 | struct net_device *netdev) | |
4355 | { | |
4356 | struct sk_buff *msg; | |
4357 | ||
4358 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
4359 | if (!msg) | |
4360 | return; | |
4361 | ||
4362 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
4363 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
4364 | nlmsg_free(msg); | |
4365 | return; | |
4366 | } | |
4367 | ||
4368 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
4369 | } | |
4370 | ||
2a519311 JB |
4371 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
4372 | struct net_device *netdev) | |
4373 | { | |
4374 | struct sk_buff *msg; | |
4375 | ||
fd2120ca | 4376 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4377 | if (!msg) |
4378 | return; | |
4379 | ||
a538e2d5 JB |
4380 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4381 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
4382 | nlmsg_free(msg); |
4383 | return; | |
4384 | } | |
4385 | ||
4386 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
4387 | } | |
4388 | ||
4389 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
4390 | struct net_device *netdev) | |
4391 | { | |
4392 | struct sk_buff *msg; | |
4393 | ||
fd2120ca | 4394 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4395 | if (!msg) |
4396 | return; | |
4397 | ||
a538e2d5 JB |
4398 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4399 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
4400 | nlmsg_free(msg); |
4401 | return; | |
4402 | } | |
4403 | ||
4404 | genlmsg_multicast(msg, 0, nl80211_scan_mcgrp.id, GFP_KERNEL); | |
4405 | } | |
4406 | ||
73d54c9e LR |
4407 | /* |
4408 | * This can happen on global regulatory changes or device specific settings | |
4409 | * based on custom world regulatory domains. | |
4410 | */ | |
4411 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
4412 | { | |
4413 | struct sk_buff *msg; | |
4414 | void *hdr; | |
4415 | ||
fd2120ca | 4416 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
4417 | if (!msg) |
4418 | return; | |
4419 | ||
4420 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
4421 | if (!hdr) { | |
4422 | nlmsg_free(msg); | |
4423 | return; | |
4424 | } | |
4425 | ||
4426 | /* Userspace can always count this one always being set */ | |
4427 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
4428 | ||
4429 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
4430 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4431 | NL80211_REGDOM_TYPE_WORLD); | |
4432 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
4433 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4434 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
4435 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
4436 | request->intersect) | |
4437 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4438 | NL80211_REGDOM_TYPE_INTERSECTION); | |
4439 | else { | |
4440 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4441 | NL80211_REGDOM_TYPE_COUNTRY); | |
4442 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
4443 | } | |
4444 | ||
4445 | if (wiphy_idx_valid(request->wiphy_idx)) | |
4446 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
4447 | ||
4448 | if (genlmsg_end(msg, hdr) < 0) { | |
4449 | nlmsg_free(msg); | |
4450 | return; | |
4451 | } | |
4452 | ||
4453 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_KERNEL); | |
4454 | ||
4455 | return; | |
4456 | ||
4457 | nla_put_failure: | |
4458 | genlmsg_cancel(msg, hdr); | |
4459 | nlmsg_free(msg); | |
4460 | } | |
4461 | ||
6039f6d2 JM |
4462 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
4463 | struct net_device *netdev, | |
4464 | const u8 *buf, size_t len, | |
e6d6e342 | 4465 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
4466 | { |
4467 | struct sk_buff *msg; | |
4468 | void *hdr; | |
4469 | ||
e6d6e342 | 4470 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
4471 | if (!msg) |
4472 | return; | |
4473 | ||
4474 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
4475 | if (!hdr) { | |
4476 | nlmsg_free(msg); | |
4477 | return; | |
4478 | } | |
4479 | ||
4480 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4481 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4482 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
4483 | ||
4484 | if (genlmsg_end(msg, hdr) < 0) { | |
4485 | nlmsg_free(msg); | |
4486 | return; | |
4487 | } | |
4488 | ||
e6d6e342 | 4489 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
6039f6d2 JM |
4490 | return; |
4491 | ||
4492 | nla_put_failure: | |
4493 | genlmsg_cancel(msg, hdr); | |
4494 | nlmsg_free(msg); | |
4495 | } | |
4496 | ||
4497 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
4498 | struct net_device *netdev, const u8 *buf, |
4499 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
4500 | { |
4501 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4502 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
4503 | } |
4504 | ||
4505 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
4506 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 4507 | size_t len, gfp_t gfp) |
6039f6d2 | 4508 | { |
e6d6e342 JB |
4509 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
4510 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
4511 | } |
4512 | ||
53b46b84 | 4513 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
4514 | struct net_device *netdev, const u8 *buf, |
4515 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
4516 | { |
4517 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4518 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
4519 | } |
4520 | ||
53b46b84 JM |
4521 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
4522 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 4523 | size_t len, gfp_t gfp) |
6039f6d2 JM |
4524 | { |
4525 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4526 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
4527 | } |
4528 | ||
1b06bb40 LR |
4529 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
4530 | struct net_device *netdev, int cmd, | |
e6d6e342 | 4531 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
4532 | { |
4533 | struct sk_buff *msg; | |
4534 | void *hdr; | |
4535 | ||
e6d6e342 | 4536 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
4537 | if (!msg) |
4538 | return; | |
4539 | ||
4540 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
4541 | if (!hdr) { | |
4542 | nlmsg_free(msg); | |
4543 | return; | |
4544 | } | |
4545 | ||
4546 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4547 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4548 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
4549 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4550 | ||
4551 | if (genlmsg_end(msg, hdr) < 0) { | |
4552 | nlmsg_free(msg); | |
4553 | return; | |
4554 | } | |
4555 | ||
e6d6e342 | 4556 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
1965c853 JM |
4557 | return; |
4558 | ||
4559 | nla_put_failure: | |
4560 | genlmsg_cancel(msg, hdr); | |
4561 | nlmsg_free(msg); | |
4562 | } | |
4563 | ||
4564 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
4565 | struct net_device *netdev, const u8 *addr, |
4566 | gfp_t gfp) | |
1965c853 JM |
4567 | { |
4568 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 4569 | addr, gfp); |
1965c853 JM |
4570 | } |
4571 | ||
4572 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
4573 | struct net_device *netdev, const u8 *addr, |
4574 | gfp_t gfp) | |
1965c853 | 4575 | { |
e6d6e342 JB |
4576 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
4577 | addr, gfp); | |
1965c853 JM |
4578 | } |
4579 | ||
b23aa676 SO |
4580 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
4581 | struct net_device *netdev, const u8 *bssid, | |
4582 | const u8 *req_ie, size_t req_ie_len, | |
4583 | const u8 *resp_ie, size_t resp_ie_len, | |
4584 | u16 status, gfp_t gfp) | |
4585 | { | |
4586 | struct sk_buff *msg; | |
4587 | void *hdr; | |
4588 | ||
4589 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
4590 | if (!msg) | |
4591 | return; | |
4592 | ||
4593 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
4594 | if (!hdr) { | |
4595 | nlmsg_free(msg); | |
4596 | return; | |
4597 | } | |
4598 | ||
4599 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4600 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4601 | if (bssid) | |
4602 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
4603 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
4604 | if (req_ie) | |
4605 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
4606 | if (resp_ie) | |
4607 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
4608 | ||
4609 | if (genlmsg_end(msg, hdr) < 0) { | |
4610 | nlmsg_free(msg); | |
4611 | return; | |
4612 | } | |
4613 | ||
4614 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
4615 | return; | |
4616 | ||
4617 | nla_put_failure: | |
4618 | genlmsg_cancel(msg, hdr); | |
4619 | nlmsg_free(msg); | |
4620 | ||
4621 | } | |
4622 | ||
4623 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
4624 | struct net_device *netdev, const u8 *bssid, | |
4625 | const u8 *req_ie, size_t req_ie_len, | |
4626 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
4627 | { | |
4628 | struct sk_buff *msg; | |
4629 | void *hdr; | |
4630 | ||
4631 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
4632 | if (!msg) | |
4633 | return; | |
4634 | ||
4635 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
4636 | if (!hdr) { | |
4637 | nlmsg_free(msg); | |
4638 | return; | |
4639 | } | |
4640 | ||
4641 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4642 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4643 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
4644 | if (req_ie) | |
4645 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
4646 | if (resp_ie) | |
4647 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
4648 | ||
4649 | if (genlmsg_end(msg, hdr) < 0) { | |
4650 | nlmsg_free(msg); | |
4651 | return; | |
4652 | } | |
4653 | ||
4654 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
4655 | return; | |
4656 | ||
4657 | nla_put_failure: | |
4658 | genlmsg_cancel(msg, hdr); | |
4659 | nlmsg_free(msg); | |
4660 | ||
4661 | } | |
4662 | ||
4663 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
4664 | struct net_device *netdev, u16 reason, | |
667503dd | 4665 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
4666 | { |
4667 | struct sk_buff *msg; | |
4668 | void *hdr; | |
4669 | ||
667503dd | 4670 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
4671 | if (!msg) |
4672 | return; | |
4673 | ||
4674 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
4675 | if (!hdr) { | |
4676 | nlmsg_free(msg); | |
4677 | return; | |
4678 | } | |
4679 | ||
4680 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4681 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4682 | if (from_ap && reason) | |
4683 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
4684 | if (from_ap) | |
4685 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
4686 | if (ie) | |
4687 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
4688 | ||
4689 | if (genlmsg_end(msg, hdr) < 0) { | |
4690 | nlmsg_free(msg); | |
4691 | return; | |
4692 | } | |
4693 | ||
667503dd | 4694 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, GFP_KERNEL); |
b23aa676 SO |
4695 | return; |
4696 | ||
4697 | nla_put_failure: | |
4698 | genlmsg_cancel(msg, hdr); | |
4699 | nlmsg_free(msg); | |
4700 | ||
4701 | } | |
4702 | ||
04a773ad JB |
4703 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
4704 | struct net_device *netdev, const u8 *bssid, | |
4705 | gfp_t gfp) | |
4706 | { | |
4707 | struct sk_buff *msg; | |
4708 | void *hdr; | |
4709 | ||
fd2120ca | 4710 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
4711 | if (!msg) |
4712 | return; | |
4713 | ||
4714 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
4715 | if (!hdr) { | |
4716 | nlmsg_free(msg); | |
4717 | return; | |
4718 | } | |
4719 | ||
4720 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4721 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4722 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
4723 | ||
4724 | if (genlmsg_end(msg, hdr) < 0) { | |
4725 | nlmsg_free(msg); | |
4726 | return; | |
4727 | } | |
4728 | ||
4729 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
4730 | return; | |
4731 | ||
4732 | nla_put_failure: | |
4733 | genlmsg_cancel(msg, hdr); | |
4734 | nlmsg_free(msg); | |
4735 | } | |
4736 | ||
a3b8b056 JM |
4737 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
4738 | struct net_device *netdev, const u8 *addr, | |
4739 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 4740 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
4741 | { |
4742 | struct sk_buff *msg; | |
4743 | void *hdr; | |
4744 | ||
e6d6e342 | 4745 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
4746 | if (!msg) |
4747 | return; | |
4748 | ||
4749 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
4750 | if (!hdr) { | |
4751 | nlmsg_free(msg); | |
4752 | return; | |
4753 | } | |
4754 | ||
4755 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4756 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4757 | if (addr) | |
4758 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4759 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
4760 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
4761 | if (tsc) | |
4762 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
4763 | ||
4764 | if (genlmsg_end(msg, hdr) < 0) { | |
4765 | nlmsg_free(msg); | |
4766 | return; | |
4767 | } | |
4768 | ||
e6d6e342 | 4769 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); |
a3b8b056 JM |
4770 | return; |
4771 | ||
4772 | nla_put_failure: | |
4773 | genlmsg_cancel(msg, hdr); | |
4774 | nlmsg_free(msg); | |
4775 | } | |
4776 | ||
6bad8766 LR |
4777 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
4778 | struct ieee80211_channel *channel_before, | |
4779 | struct ieee80211_channel *channel_after) | |
4780 | { | |
4781 | struct sk_buff *msg; | |
4782 | void *hdr; | |
4783 | struct nlattr *nl_freq; | |
4784 | ||
fd2120ca | 4785 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
4786 | if (!msg) |
4787 | return; | |
4788 | ||
4789 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
4790 | if (!hdr) { | |
4791 | nlmsg_free(msg); | |
4792 | return; | |
4793 | } | |
4794 | ||
4795 | /* | |
4796 | * Since we are applying the beacon hint to a wiphy we know its | |
4797 | * wiphy_idx is valid | |
4798 | */ | |
4799 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
4800 | ||
4801 | /* Before */ | |
4802 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
4803 | if (!nl_freq) | |
4804 | goto nla_put_failure; | |
4805 | if (nl80211_msg_put_channel(msg, channel_before)) | |
4806 | goto nla_put_failure; | |
4807 | nla_nest_end(msg, nl_freq); | |
4808 | ||
4809 | /* After */ | |
4810 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
4811 | if (!nl_freq) | |
4812 | goto nla_put_failure; | |
4813 | if (nl80211_msg_put_channel(msg, channel_after)) | |
4814 | goto nla_put_failure; | |
4815 | nla_nest_end(msg, nl_freq); | |
4816 | ||
4817 | if (genlmsg_end(msg, hdr) < 0) { | |
4818 | nlmsg_free(msg); | |
4819 | return; | |
4820 | } | |
4821 | ||
4822 | genlmsg_multicast(msg, 0, nl80211_regulatory_mcgrp.id, GFP_ATOMIC); | |
4823 | ||
4824 | return; | |
4825 | ||
4826 | nla_put_failure: | |
4827 | genlmsg_cancel(msg, hdr); | |
4828 | nlmsg_free(msg); | |
4829 | } | |
4830 | ||
55682965 JB |
4831 | /* initialisation/exit functions */ |
4832 | ||
4833 | int nl80211_init(void) | |
4834 | { | |
0d63cbb5 | 4835 | int err; |
55682965 | 4836 | |
0d63cbb5 MM |
4837 | err = genl_register_family_with_ops(&nl80211_fam, |
4838 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
4839 | if (err) |
4840 | return err; | |
4841 | ||
55682965 JB |
4842 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
4843 | if (err) | |
4844 | goto err_out; | |
4845 | ||
2a519311 JB |
4846 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
4847 | if (err) | |
4848 | goto err_out; | |
4849 | ||
73d54c9e LR |
4850 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
4851 | if (err) | |
4852 | goto err_out; | |
4853 | ||
6039f6d2 JM |
4854 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
4855 | if (err) | |
4856 | goto err_out; | |
4857 | ||
aff89a9b JB |
4858 | #ifdef CONFIG_NL80211_TESTMODE |
4859 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
4860 | if (err) | |
4861 | goto err_out; | |
4862 | #endif | |
4863 | ||
55682965 JB |
4864 | return 0; |
4865 | err_out: | |
4866 | genl_unregister_family(&nl80211_fam); | |
4867 | return err; | |
4868 | } | |
4869 | ||
4870 | void nl80211_exit(void) | |
4871 | { | |
4872 | genl_unregister_family(&nl80211_fam); | |
4873 | } |