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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 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 JB |
25 | |
26 | /* the netlink family */ | |
27 | static struct genl_family nl80211_fam = { | |
28 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
29 | .name = "nl80211", /* have users key off the name instead */ | |
30 | .hdrsize = 0, /* no private header */ | |
31 | .version = 1, /* no particular meaning now */ | |
32 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 33 | .netnsok = true, |
55682965 JB |
34 | }; |
35 | ||
79c97e97 | 36 | /* internal helper: get rdev and dev */ |
463d0183 | 37 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 38 | struct cfg80211_registered_device **rdev, |
55682965 JB |
39 | struct net_device **dev) |
40 | { | |
463d0183 | 41 | struct nlattr **attrs = info->attrs; |
55682965 JB |
42 | int ifindex; |
43 | ||
bba95fef | 44 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
45 | return -EINVAL; |
46 | ||
bba95fef | 47 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 48 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
49 | if (!*dev) |
50 | return -ENODEV; | |
51 | ||
463d0183 | 52 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 53 | if (IS_ERR(*rdev)) { |
55682965 | 54 | dev_put(*dev); |
79c97e97 | 55 | return PTR_ERR(*rdev); |
55682965 JB |
56 | } |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | /* policy for the attributes */ | |
b54452b0 | 62 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
63 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
64 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 65 | .len = 20-1 }, |
31888487 | 66 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 67 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 68 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
69 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
70 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
71 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
72 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 73 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
74 | |
75 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
76 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
77 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
78 | |
79 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 80 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 81 | |
b9454e83 | 82 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
83 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
84 | .len = WLAN_MAX_KEY_LEN }, | |
85 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
86 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
87 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 88 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
89 | |
90 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
91 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
92 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
93 | .len = IEEE80211_MAX_DATA_LEN }, | |
94 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
95 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
96 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
97 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
98 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
99 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
100 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 101 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 102 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 103 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
104 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
105 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
106 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 107 | |
b2e1b302 LR |
108 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
109 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
110 | ||
9f1ba906 JM |
111 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
112 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
113 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
114 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
115 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 116 | |
93da9cc1 | 117 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
118 | ||
36aedc90 JM |
119 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
120 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
121 | |
122 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
123 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
124 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
125 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
126 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
127 | |
128 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
129 | .len = IEEE80211_MAX_SSID_LEN }, | |
130 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
131 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 132 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 133 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 134 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
135 | [NL80211_ATTR_STA_FLAGS2] = { |
136 | .len = sizeof(struct nl80211_sta_flag_update), | |
137 | }, | |
3f77316c | 138 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
b23aa676 SO |
139 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
140 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
141 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 142 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 143 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
144 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
145 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
146 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
147 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 148 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
149 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
150 | .len = IEEE80211_MAX_DATA_LEN }, | |
151 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 152 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
55682965 JB |
153 | }; |
154 | ||
b9454e83 | 155 | /* policy for the attributes */ |
b54452b0 | 156 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 157 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
158 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
159 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
160 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
161 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
162 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
163 | }; | |
164 | ||
a043897a HS |
165 | /* ifidx get helper */ |
166 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
167 | { | |
168 | int res; | |
169 | ||
170 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
171 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
172 | nl80211_policy); | |
173 | if (res) | |
174 | return res; | |
175 | ||
176 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
177 | return -EINVAL; | |
178 | ||
179 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
180 | if (!res) | |
181 | return -EINVAL; | |
182 | return res; | |
183 | } | |
184 | ||
f4a11bb0 JB |
185 | /* IE validation */ |
186 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
187 | { | |
188 | const u8 *pos; | |
189 | int len; | |
190 | ||
191 | if (!attr) | |
192 | return true; | |
193 | ||
194 | pos = nla_data(attr); | |
195 | len = nla_len(attr); | |
196 | ||
197 | while (len) { | |
198 | u8 elemlen; | |
199 | ||
200 | if (len < 2) | |
201 | return false; | |
202 | len -= 2; | |
203 | ||
204 | elemlen = pos[1]; | |
205 | if (elemlen > len) | |
206 | return false; | |
207 | ||
208 | len -= elemlen; | |
209 | pos += 2 + elemlen; | |
210 | } | |
211 | ||
212 | return true; | |
213 | } | |
214 | ||
55682965 JB |
215 | /* message building helper */ |
216 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
217 | int flags, u8 cmd) | |
218 | { | |
219 | /* since there is no private header just add the generic one */ | |
220 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
221 | } | |
222 | ||
5dab3b8a LR |
223 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
224 | struct ieee80211_channel *chan) | |
225 | { | |
226 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
227 | chan->center_freq); | |
228 | ||
229 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
230 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
231 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
232 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
233 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
234 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
235 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
236 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
237 | ||
238 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
239 | DBM_TO_MBM(chan->max_power)); | |
240 | ||
241 | return 0; | |
242 | ||
243 | nla_put_failure: | |
244 | return -ENOBUFS; | |
245 | } | |
246 | ||
55682965 JB |
247 | /* netlink command implementations */ |
248 | ||
b9454e83 JB |
249 | struct key_parse { |
250 | struct key_params p; | |
251 | int idx; | |
252 | bool def, defmgmt; | |
253 | }; | |
254 | ||
255 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
256 | { | |
257 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
258 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
259 | nl80211_key_policy); | |
260 | if (err) | |
261 | return err; | |
262 | ||
263 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
264 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
265 | ||
266 | if (tb[NL80211_KEY_IDX]) | |
267 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
268 | ||
269 | if (tb[NL80211_KEY_DATA]) { | |
270 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
271 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
272 | } | |
273 | ||
274 | if (tb[NL80211_KEY_SEQ]) { | |
275 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
276 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
277 | } | |
278 | ||
279 | if (tb[NL80211_KEY_CIPHER]) | |
280 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
286 | { | |
287 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
288 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
289 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
290 | } | |
291 | ||
292 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
293 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
294 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
295 | } | |
296 | ||
297 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
298 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
299 | ||
300 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
301 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
302 | ||
303 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
304 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
310 | { | |
311 | int err; | |
312 | ||
313 | memset(k, 0, sizeof(*k)); | |
314 | k->idx = -1; | |
315 | ||
316 | if (info->attrs[NL80211_ATTR_KEY]) | |
317 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
318 | else | |
319 | err = nl80211_parse_key_old(info, k); | |
320 | ||
321 | if (err) | |
322 | return err; | |
323 | ||
324 | if (k->def && k->defmgmt) | |
325 | return -EINVAL; | |
326 | ||
327 | if (k->idx != -1) { | |
328 | if (k->defmgmt) { | |
329 | if (k->idx < 4 || k->idx > 5) | |
330 | return -EINVAL; | |
331 | } else if (k->def) { | |
332 | if (k->idx < 0 || k->idx > 3) | |
333 | return -EINVAL; | |
334 | } else { | |
335 | if (k->idx < 0 || k->idx > 5) | |
336 | return -EINVAL; | |
337 | } | |
338 | } | |
339 | ||
340 | return 0; | |
341 | } | |
342 | ||
fffd0934 JB |
343 | static struct cfg80211_cached_keys * |
344 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
345 | struct nlattr *keys) | |
346 | { | |
347 | struct key_parse parse; | |
348 | struct nlattr *key; | |
349 | struct cfg80211_cached_keys *result; | |
350 | int rem, err, def = 0; | |
351 | ||
352 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
353 | if (!result) | |
354 | return ERR_PTR(-ENOMEM); | |
355 | ||
356 | result->def = -1; | |
357 | result->defmgmt = -1; | |
358 | ||
359 | nla_for_each_nested(key, keys, rem) { | |
360 | memset(&parse, 0, sizeof(parse)); | |
361 | parse.idx = -1; | |
362 | ||
363 | err = nl80211_parse_key_new(key, &parse); | |
364 | if (err) | |
365 | goto error; | |
366 | err = -EINVAL; | |
367 | if (!parse.p.key) | |
368 | goto error; | |
369 | if (parse.idx < 0 || parse.idx > 4) | |
370 | goto error; | |
371 | if (parse.def) { | |
372 | if (def) | |
373 | goto error; | |
374 | def = 1; | |
375 | result->def = parse.idx; | |
376 | } else if (parse.defmgmt) | |
377 | goto error; | |
378 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
379 | parse.idx, NULL); | |
380 | if (err) | |
381 | goto error; | |
382 | result->params[parse.idx].cipher = parse.p.cipher; | |
383 | result->params[parse.idx].key_len = parse.p.key_len; | |
384 | result->params[parse.idx].key = result->data[parse.idx]; | |
385 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
386 | } | |
387 | ||
388 | return result; | |
389 | error: | |
390 | kfree(result); | |
391 | return ERR_PTR(err); | |
392 | } | |
393 | ||
394 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
395 | { | |
396 | ASSERT_WDEV_LOCK(wdev); | |
397 | ||
398 | if (!netif_running(wdev->netdev)) | |
399 | return -ENETDOWN; | |
400 | ||
401 | switch (wdev->iftype) { | |
402 | case NL80211_IFTYPE_AP: | |
403 | case NL80211_IFTYPE_AP_VLAN: | |
404 | break; | |
405 | case NL80211_IFTYPE_ADHOC: | |
406 | if (!wdev->current_bss) | |
407 | return -ENOLINK; | |
408 | break; | |
409 | case NL80211_IFTYPE_STATION: | |
410 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
411 | return -ENOLINK; | |
412 | break; | |
413 | default: | |
414 | return -EINVAL; | |
415 | } | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
55682965 JB |
420 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
421 | struct cfg80211_registered_device *dev) | |
422 | { | |
423 | void *hdr; | |
ee688b00 JB |
424 | struct nlattr *nl_bands, *nl_band; |
425 | struct nlattr *nl_freqs, *nl_freq; | |
426 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 427 | struct nlattr *nl_modes; |
8fdc621d | 428 | struct nlattr *nl_cmds; |
ee688b00 JB |
429 | enum ieee80211_band band; |
430 | struct ieee80211_channel *chan; | |
431 | struct ieee80211_rate *rate; | |
432 | int i; | |
f59ac048 | 433 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
434 | |
435 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
436 | if (!hdr) | |
437 | return -1; | |
438 | ||
b5850a7a | 439 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 440 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 441 | |
f5ea9120 JB |
442 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
443 | cfg80211_rdev_list_generation); | |
444 | ||
b9a5f8ca JM |
445 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
446 | dev->wiphy.retry_short); | |
447 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
448 | dev->wiphy.retry_long); | |
449 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
450 | dev->wiphy.frag_threshold); | |
451 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
452 | dev->wiphy.rts_threshold); | |
81077e82 LT |
453 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
454 | dev->wiphy.coverage_class); | |
b9a5f8ca | 455 | |
2a519311 JB |
456 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
457 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
458 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
459 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 460 | |
25e47c18 JB |
461 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
462 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
463 | dev->wiphy.cipher_suites); | |
464 | ||
67fbb16b SO |
465 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
466 | dev->wiphy.max_num_pmkids); | |
467 | ||
f59ac048 LR |
468 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
469 | if (!nl_modes) | |
470 | goto nla_put_failure; | |
471 | ||
472 | i = 0; | |
473 | while (ifmodes) { | |
474 | if (ifmodes & 1) | |
475 | NLA_PUT_FLAG(msg, i); | |
476 | ifmodes >>= 1; | |
477 | i++; | |
478 | } | |
479 | ||
480 | nla_nest_end(msg, nl_modes); | |
481 | ||
ee688b00 JB |
482 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
483 | if (!nl_bands) | |
484 | goto nla_put_failure; | |
485 | ||
486 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
487 | if (!dev->wiphy.bands[band]) | |
488 | continue; | |
489 | ||
490 | nl_band = nla_nest_start(msg, band); | |
491 | if (!nl_band) | |
492 | goto nla_put_failure; | |
493 | ||
d51626df JB |
494 | /* add HT info */ |
495 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
496 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
497 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
498 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
499 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
500 | dev->wiphy.bands[band]->ht_cap.cap); | |
501 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
502 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
503 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
504 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
505 | } | |
506 | ||
ee688b00 JB |
507 | /* add frequencies */ |
508 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
509 | if (!nl_freqs) | |
510 | goto nla_put_failure; | |
511 | ||
512 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
513 | nl_freq = nla_nest_start(msg, i); | |
514 | if (!nl_freq) | |
515 | goto nla_put_failure; | |
516 | ||
517 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
518 | |
519 | if (nl80211_msg_put_channel(msg, chan)) | |
520 | goto nla_put_failure; | |
e2f367f2 | 521 | |
ee688b00 JB |
522 | nla_nest_end(msg, nl_freq); |
523 | } | |
524 | ||
525 | nla_nest_end(msg, nl_freqs); | |
526 | ||
527 | /* add bitrates */ | |
528 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
529 | if (!nl_rates) | |
530 | goto nla_put_failure; | |
531 | ||
532 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
533 | nl_rate = nla_nest_start(msg, i); | |
534 | if (!nl_rate) | |
535 | goto nla_put_failure; | |
536 | ||
537 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
538 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
539 | rate->bitrate); | |
540 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
541 | NLA_PUT_FLAG(msg, | |
542 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
543 | ||
544 | nla_nest_end(msg, nl_rate); | |
545 | } | |
546 | ||
547 | nla_nest_end(msg, nl_rates); | |
548 | ||
549 | nla_nest_end(msg, nl_band); | |
550 | } | |
551 | nla_nest_end(msg, nl_bands); | |
552 | ||
8fdc621d JB |
553 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
554 | if (!nl_cmds) | |
555 | goto nla_put_failure; | |
556 | ||
557 | i = 0; | |
558 | #define CMD(op, n) \ | |
559 | do { \ | |
560 | if (dev->ops->op) { \ | |
561 | i++; \ | |
562 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
563 | } \ | |
564 | } while (0) | |
565 | ||
566 | CMD(add_virtual_intf, NEW_INTERFACE); | |
567 | CMD(change_virtual_intf, SET_INTERFACE); | |
568 | CMD(add_key, NEW_KEY); | |
569 | CMD(add_beacon, NEW_BEACON); | |
570 | CMD(add_station, NEW_STATION); | |
571 | CMD(add_mpath, NEW_MPATH); | |
572 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
573 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
574 | CMD(auth, AUTHENTICATE); |
575 | CMD(assoc, ASSOCIATE); | |
576 | CMD(deauth, DEAUTHENTICATE); | |
577 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 578 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
579 | CMD(set_pmksa, SET_PMKSA); |
580 | CMD(del_pmksa, DEL_PMKSA); | |
581 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 582 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 583 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
026331c4 | 584 | CMD(action, ACTION); |
5be83de5 | 585 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
586 | i++; |
587 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
588 | } | |
8fdc621d JB |
589 | |
590 | #undef CMD | |
b23aa676 | 591 | |
6829c878 | 592 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
593 | i++; |
594 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
595 | } | |
596 | ||
6829c878 | 597 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
598 | i++; |
599 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
600 | } | |
601 | ||
8fdc621d JB |
602 | nla_nest_end(msg, nl_cmds); |
603 | ||
55682965 JB |
604 | return genlmsg_end(msg, hdr); |
605 | ||
606 | nla_put_failure: | |
bc3ed28c TG |
607 | genlmsg_cancel(msg, hdr); |
608 | return -EMSGSIZE; | |
55682965 JB |
609 | } |
610 | ||
611 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
612 | { | |
613 | int idx = 0; | |
614 | int start = cb->args[0]; | |
615 | struct cfg80211_registered_device *dev; | |
616 | ||
a1794390 | 617 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 618 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
619 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
620 | continue; | |
b4637271 | 621 | if (++idx <= start) |
55682965 JB |
622 | continue; |
623 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
624 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
625 | dev) < 0) { |
626 | idx--; | |
55682965 | 627 | break; |
b4637271 | 628 | } |
55682965 | 629 | } |
a1794390 | 630 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
631 | |
632 | cb->args[0] = idx; | |
633 | ||
634 | return skb->len; | |
635 | } | |
636 | ||
637 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
638 | { | |
639 | struct sk_buff *msg; | |
640 | struct cfg80211_registered_device *dev; | |
641 | ||
642 | dev = cfg80211_get_dev_from_info(info); | |
643 | if (IS_ERR(dev)) | |
644 | return PTR_ERR(dev); | |
645 | ||
fd2120ca | 646 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
647 | if (!msg) |
648 | goto out_err; | |
649 | ||
650 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
651 | goto out_free; | |
652 | ||
4d0c8aea | 653 | cfg80211_unlock_rdev(dev); |
55682965 | 654 | |
134e6375 | 655 | return genlmsg_reply(msg, info); |
55682965 JB |
656 | |
657 | out_free: | |
658 | nlmsg_free(msg); | |
659 | out_err: | |
4d0c8aea | 660 | cfg80211_unlock_rdev(dev); |
55682965 JB |
661 | return -ENOBUFS; |
662 | } | |
663 | ||
31888487 JM |
664 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
665 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
666 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
667 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
668 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
669 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
670 | }; | |
671 | ||
672 | static int parse_txq_params(struct nlattr *tb[], | |
673 | struct ieee80211_txq_params *txq_params) | |
674 | { | |
675 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
676 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
677 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
678 | return -EINVAL; | |
679 | ||
680 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
681 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
682 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
683 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
684 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
685 | ||
686 | return 0; | |
687 | } | |
688 | ||
55682965 JB |
689 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
690 | { | |
691 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
692 | int result = 0, rem_txq_params = 0; |
693 | struct nlattr *nl_txq_params; | |
b9a5f8ca JM |
694 | u32 changed; |
695 | u8 retry_short = 0, retry_long = 0; | |
696 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 697 | u8 coverage_class = 0; |
55682965 | 698 | |
4bbf4d56 | 699 | rtnl_lock(); |
55682965 | 700 | |
4bbf4d56 JB |
701 | mutex_lock(&cfg80211_mutex); |
702 | ||
79c97e97 | 703 | rdev = __cfg80211_rdev_from_info(info); |
4bbf4d56 | 704 | if (IS_ERR(rdev)) { |
1f5fc70a | 705 | mutex_unlock(&cfg80211_mutex); |
4bbf4d56 JB |
706 | result = PTR_ERR(rdev); |
707 | goto unlock; | |
708 | } | |
709 | ||
710 | mutex_lock(&rdev->mtx); | |
711 | ||
712 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
713 | result = cfg80211_dev_rename( |
714 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
715 | |
716 | mutex_unlock(&cfg80211_mutex); | |
717 | ||
718 | if (result) | |
719 | goto bad_res; | |
31888487 JM |
720 | |
721 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
722 | struct ieee80211_txq_params txq_params; | |
723 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
724 | ||
725 | if (!rdev->ops->set_txq_params) { | |
726 | result = -EOPNOTSUPP; | |
727 | goto bad_res; | |
728 | } | |
729 | ||
730 | nla_for_each_nested(nl_txq_params, | |
731 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
732 | rem_txq_params) { | |
733 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
734 | nla_data(nl_txq_params), | |
735 | nla_len(nl_txq_params), | |
736 | txq_params_policy); | |
737 | result = parse_txq_params(tb, &txq_params); | |
738 | if (result) | |
739 | goto bad_res; | |
740 | ||
741 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
742 | &txq_params); | |
743 | if (result) | |
744 | goto bad_res; | |
745 | } | |
746 | } | |
55682965 | 747 | |
72bdcf34 | 748 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 749 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
294196ab | 750 | u32 freq; |
72bdcf34 | 751 | |
306d6112 JB |
752 | result = -EINVAL; |
753 | ||
094d05dc S |
754 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
755 | channel_type = nla_get_u32(info->attrs[ | |
756 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
757 | if (channel_type != NL80211_CHAN_NO_HT && | |
758 | channel_type != NL80211_CHAN_HT20 && | |
759 | channel_type != NL80211_CHAN_HT40PLUS && | |
760 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 761 | goto bad_res; |
72bdcf34 JM |
762 | } |
763 | ||
764 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
306d6112 | 765 | |
59bbb6f7 | 766 | mutex_lock(&rdev->devlist_mtx); |
4b181144 | 767 | result = rdev_set_freq(rdev, NULL, freq, channel_type); |
59bbb6f7 | 768 | mutex_unlock(&rdev->devlist_mtx); |
72bdcf34 JM |
769 | if (result) |
770 | goto bad_res; | |
771 | } | |
772 | ||
b9a5f8ca JM |
773 | changed = 0; |
774 | ||
775 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
776 | retry_short = nla_get_u8( | |
777 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
778 | if (retry_short == 0) { | |
779 | result = -EINVAL; | |
780 | goto bad_res; | |
781 | } | |
782 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
783 | } | |
784 | ||
785 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
786 | retry_long = nla_get_u8( | |
787 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
788 | if (retry_long == 0) { | |
789 | result = -EINVAL; | |
790 | goto bad_res; | |
791 | } | |
792 | changed |= WIPHY_PARAM_RETRY_LONG; | |
793 | } | |
794 | ||
795 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
796 | frag_threshold = nla_get_u32( | |
797 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
798 | if (frag_threshold < 256) { | |
799 | result = -EINVAL; | |
800 | goto bad_res; | |
801 | } | |
802 | if (frag_threshold != (u32) -1) { | |
803 | /* | |
804 | * Fragments (apart from the last one) are required to | |
805 | * have even length. Make the fragmentation code | |
806 | * simpler by stripping LSB should someone try to use | |
807 | * odd threshold value. | |
808 | */ | |
809 | frag_threshold &= ~0x1; | |
810 | } | |
811 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
812 | } | |
813 | ||
814 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
815 | rts_threshold = nla_get_u32( | |
816 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
817 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
818 | } | |
819 | ||
81077e82 LT |
820 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
821 | coverage_class = nla_get_u8( | |
822 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
823 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
824 | } | |
825 | ||
b9a5f8ca JM |
826 | if (changed) { |
827 | u8 old_retry_short, old_retry_long; | |
828 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 829 | u8 old_coverage_class; |
b9a5f8ca JM |
830 | |
831 | if (!rdev->ops->set_wiphy_params) { | |
832 | result = -EOPNOTSUPP; | |
833 | goto bad_res; | |
834 | } | |
835 | ||
836 | old_retry_short = rdev->wiphy.retry_short; | |
837 | old_retry_long = rdev->wiphy.retry_long; | |
838 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
839 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 840 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
841 | |
842 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
843 | rdev->wiphy.retry_short = retry_short; | |
844 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
845 | rdev->wiphy.retry_long = retry_long; | |
846 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
847 | rdev->wiphy.frag_threshold = frag_threshold; | |
848 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
849 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
850 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
851 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
852 | |
853 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
854 | if (result) { | |
855 | rdev->wiphy.retry_short = old_retry_short; | |
856 | rdev->wiphy.retry_long = old_retry_long; | |
857 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
858 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 859 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
860 | } |
861 | } | |
72bdcf34 | 862 | |
306d6112 | 863 | bad_res: |
4bbf4d56 JB |
864 | mutex_unlock(&rdev->mtx); |
865 | unlock: | |
866 | rtnl_unlock(); | |
55682965 JB |
867 | return result; |
868 | } | |
869 | ||
870 | ||
871 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 872 | struct cfg80211_registered_device *rdev, |
55682965 JB |
873 | struct net_device *dev) |
874 | { | |
875 | void *hdr; | |
876 | ||
877 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
878 | if (!hdr) | |
879 | return -1; | |
880 | ||
881 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 882 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 883 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 884 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
885 | |
886 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
887 | rdev->devlist_generation ^ | |
888 | (cfg80211_rdev_list_generation << 2)); | |
889 | ||
55682965 JB |
890 | return genlmsg_end(msg, hdr); |
891 | ||
892 | nla_put_failure: | |
bc3ed28c TG |
893 | genlmsg_cancel(msg, hdr); |
894 | return -EMSGSIZE; | |
55682965 JB |
895 | } |
896 | ||
897 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
898 | { | |
899 | int wp_idx = 0; | |
900 | int if_idx = 0; | |
901 | int wp_start = cb->args[0]; | |
902 | int if_start = cb->args[1]; | |
f5ea9120 | 903 | struct cfg80211_registered_device *rdev; |
55682965 JB |
904 | struct wireless_dev *wdev; |
905 | ||
a1794390 | 906 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
907 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
908 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 909 | continue; |
bba95fef JB |
910 | if (wp_idx < wp_start) { |
911 | wp_idx++; | |
55682965 | 912 | continue; |
bba95fef | 913 | } |
55682965 JB |
914 | if_idx = 0; |
915 | ||
f5ea9120 JB |
916 | mutex_lock(&rdev->devlist_mtx); |
917 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
918 | if (if_idx < if_start) { |
919 | if_idx++; | |
55682965 | 920 | continue; |
bba95fef | 921 | } |
55682965 JB |
922 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
923 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
924 | rdev, wdev->netdev) < 0) { |
925 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
926 | goto out; |
927 | } | |
928 | if_idx++; | |
55682965 | 929 | } |
f5ea9120 | 930 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
931 | |
932 | wp_idx++; | |
55682965 | 933 | } |
bba95fef | 934 | out: |
a1794390 | 935 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
936 | |
937 | cb->args[0] = wp_idx; | |
938 | cb->args[1] = if_idx; | |
939 | ||
940 | return skb->len; | |
941 | } | |
942 | ||
943 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
944 | { | |
945 | struct sk_buff *msg; | |
946 | struct cfg80211_registered_device *dev; | |
947 | struct net_device *netdev; | |
948 | int err; | |
949 | ||
463d0183 | 950 | err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); |
55682965 JB |
951 | if (err) |
952 | return err; | |
953 | ||
fd2120ca | 954 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
955 | if (!msg) |
956 | goto out_err; | |
957 | ||
d726405a JB |
958 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
959 | dev, netdev) < 0) | |
55682965 JB |
960 | goto out_free; |
961 | ||
962 | dev_put(netdev); | |
4d0c8aea | 963 | cfg80211_unlock_rdev(dev); |
55682965 | 964 | |
134e6375 | 965 | return genlmsg_reply(msg, info); |
55682965 JB |
966 | |
967 | out_free: | |
968 | nlmsg_free(msg); | |
969 | out_err: | |
970 | dev_put(netdev); | |
4d0c8aea | 971 | cfg80211_unlock_rdev(dev); |
55682965 JB |
972 | return -ENOBUFS; |
973 | } | |
974 | ||
66f7ac50 MW |
975 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
976 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
977 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
978 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
979 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
980 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
981 | }; | |
982 | ||
983 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
984 | { | |
985 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
986 | int flag; | |
987 | ||
988 | *mntrflags = 0; | |
989 | ||
990 | if (!nla) | |
991 | return -EINVAL; | |
992 | ||
993 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
994 | nla, mntr_flags_policy)) | |
995 | return -EINVAL; | |
996 | ||
997 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
998 | if (flags[flag]) | |
999 | *mntrflags |= (1<<flag); | |
1000 | ||
1001 | return 0; | |
1002 | } | |
1003 | ||
9bc383de | 1004 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1005 | struct net_device *netdev, u8 use_4addr, |
1006 | enum nl80211_iftype iftype) | |
9bc383de | 1007 | { |
ad4bb6f8 JB |
1008 | if (!use_4addr) { |
1009 | if (netdev && netdev->br_port) | |
1010 | return -EBUSY; | |
9bc383de | 1011 | return 0; |
ad4bb6f8 | 1012 | } |
9bc383de JB |
1013 | |
1014 | switch (iftype) { | |
1015 | case NL80211_IFTYPE_AP_VLAN: | |
1016 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1017 | return 0; | |
1018 | break; | |
1019 | case NL80211_IFTYPE_STATION: | |
1020 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1021 | return 0; | |
1022 | break; | |
1023 | default: | |
1024 | break; | |
1025 | } | |
1026 | ||
1027 | return -EOPNOTSUPP; | |
1028 | } | |
1029 | ||
55682965 JB |
1030 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1031 | { | |
79c97e97 | 1032 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1033 | struct vif_params params; |
e36d56b6 | 1034 | int err; |
04a773ad | 1035 | enum nl80211_iftype otype, ntype; |
55682965 | 1036 | struct net_device *dev; |
92ffe055 | 1037 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1038 | bool change = false; |
55682965 | 1039 | |
2ec600d6 LCC |
1040 | memset(¶ms, 0, sizeof(params)); |
1041 | ||
3b85875a JB |
1042 | rtnl_lock(); |
1043 | ||
463d0183 | 1044 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1045 | if (err) |
3b85875a JB |
1046 | goto unlock_rtnl; |
1047 | ||
04a773ad | 1048 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1049 | |
723b038d | 1050 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1051 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1052 | if (otype != ntype) |
ac7f9cfa | 1053 | change = true; |
04a773ad | 1054 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 1055 | err = -EINVAL; |
723b038d | 1056 | goto unlock; |
ac7f9cfa | 1057 | } |
723b038d JB |
1058 | } |
1059 | ||
92ffe055 | 1060 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1061 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1062 | err = -EINVAL; |
1063 | goto unlock; | |
1064 | } | |
2ec600d6 LCC |
1065 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1066 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1067 | change = true; |
2ec600d6 LCC |
1068 | } |
1069 | ||
8b787643 FF |
1070 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1071 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1072 | change = true; | |
ad4bb6f8 | 1073 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de JB |
1074 | if (err) |
1075 | goto unlock; | |
8b787643 FF |
1076 | } else { |
1077 | params.use_4addr = -1; | |
1078 | } | |
1079 | ||
92ffe055 | 1080 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1081 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1082 | err = -EINVAL; |
1083 | goto unlock; | |
1084 | } | |
1085 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1086 | &_flags); | |
ac7f9cfa JB |
1087 | if (err) |
1088 | goto unlock; | |
1089 | ||
1090 | flags = &_flags; | |
1091 | change = true; | |
92ffe055 | 1092 | } |
3b85875a | 1093 | |
ac7f9cfa | 1094 | if (change) |
3d54d255 | 1095 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1096 | else |
1097 | err = 0; | |
60719ffd | 1098 | |
9bc383de JB |
1099 | if (!err && params.use_4addr != -1) |
1100 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1101 | ||
55682965 | 1102 | unlock: |
e36d56b6 | 1103 | dev_put(dev); |
79c97e97 | 1104 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1105 | unlock_rtnl: |
1106 | rtnl_unlock(); | |
55682965 JB |
1107 | return err; |
1108 | } | |
1109 | ||
1110 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1111 | { | |
79c97e97 | 1112 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1113 | struct vif_params params; |
55682965 JB |
1114 | int err; |
1115 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1116 | u32 flags; |
55682965 | 1117 | |
2ec600d6 LCC |
1118 | memset(¶ms, 0, sizeof(params)); |
1119 | ||
55682965 JB |
1120 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1121 | return -EINVAL; | |
1122 | ||
1123 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1124 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1125 | if (type > NL80211_IFTYPE_MAX) | |
1126 | return -EINVAL; | |
1127 | } | |
1128 | ||
3b85875a JB |
1129 | rtnl_lock(); |
1130 | ||
79c97e97 JB |
1131 | rdev = cfg80211_get_dev_from_info(info); |
1132 | if (IS_ERR(rdev)) { | |
1133 | err = PTR_ERR(rdev); | |
3b85875a JB |
1134 | goto unlock_rtnl; |
1135 | } | |
55682965 | 1136 | |
79c97e97 JB |
1137 | if (!rdev->ops->add_virtual_intf || |
1138 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1139 | err = -EOPNOTSUPP; |
1140 | goto unlock; | |
1141 | } | |
1142 | ||
2ec600d6 LCC |
1143 | if (type == NL80211_IFTYPE_MESH_POINT && |
1144 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1145 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1146 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1147 | } | |
1148 | ||
9bc383de | 1149 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1150 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1151 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de JB |
1152 | if (err) |
1153 | goto unlock; | |
1154 | } | |
8b787643 | 1155 | |
66f7ac50 MW |
1156 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1157 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1158 | &flags); | |
79c97e97 | 1159 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1160 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1161 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1162 | |
55682965 | 1163 | unlock: |
79c97e97 | 1164 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1165 | unlock_rtnl: |
1166 | rtnl_unlock(); | |
55682965 JB |
1167 | return err; |
1168 | } | |
1169 | ||
1170 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1171 | { | |
79c97e97 | 1172 | struct cfg80211_registered_device *rdev; |
463d0183 | 1173 | int err; |
55682965 JB |
1174 | struct net_device *dev; |
1175 | ||
3b85875a JB |
1176 | rtnl_lock(); |
1177 | ||
463d0183 | 1178 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1179 | if (err) |
3b85875a | 1180 | goto unlock_rtnl; |
55682965 | 1181 | |
79c97e97 | 1182 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1183 | err = -EOPNOTSUPP; |
1184 | goto out; | |
1185 | } | |
1186 | ||
463d0183 | 1187 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1188 | |
1189 | out: | |
79c97e97 | 1190 | cfg80211_unlock_rdev(rdev); |
463d0183 | 1191 | dev_put(dev); |
3b85875a JB |
1192 | unlock_rtnl: |
1193 | rtnl_unlock(); | |
55682965 JB |
1194 | return err; |
1195 | } | |
1196 | ||
41ade00f JB |
1197 | struct get_key_cookie { |
1198 | struct sk_buff *msg; | |
1199 | int error; | |
b9454e83 | 1200 | int idx; |
41ade00f JB |
1201 | }; |
1202 | ||
1203 | static void get_key_callback(void *c, struct key_params *params) | |
1204 | { | |
b9454e83 | 1205 | struct nlattr *key; |
41ade00f JB |
1206 | struct get_key_cookie *cookie = c; |
1207 | ||
1208 | if (params->key) | |
1209 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1210 | params->key_len, params->key); | |
1211 | ||
1212 | if (params->seq) | |
1213 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1214 | params->seq_len, params->seq); | |
1215 | ||
1216 | if (params->cipher) | |
1217 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1218 | params->cipher); | |
1219 | ||
b9454e83 JB |
1220 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1221 | if (!key) | |
1222 | goto nla_put_failure; | |
1223 | ||
1224 | if (params->key) | |
1225 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1226 | params->key_len, params->key); | |
1227 | ||
1228 | if (params->seq) | |
1229 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1230 | params->seq_len, params->seq); | |
1231 | ||
1232 | if (params->cipher) | |
1233 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1234 | params->cipher); | |
1235 | ||
1236 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1237 | ||
1238 | nla_nest_end(cookie->msg, key); | |
1239 | ||
41ade00f JB |
1240 | return; |
1241 | nla_put_failure: | |
1242 | cookie->error = 1; | |
1243 | } | |
1244 | ||
1245 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1246 | { | |
79c97e97 | 1247 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1248 | int err; |
1249 | struct net_device *dev; | |
1250 | u8 key_idx = 0; | |
1251 | u8 *mac_addr = NULL; | |
1252 | struct get_key_cookie cookie = { | |
1253 | .error = 0, | |
1254 | }; | |
1255 | void *hdr; | |
1256 | struct sk_buff *msg; | |
1257 | ||
1258 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1259 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1260 | ||
3cfcf6ac | 1261 | if (key_idx > 5) |
41ade00f JB |
1262 | return -EINVAL; |
1263 | ||
1264 | if (info->attrs[NL80211_ATTR_MAC]) | |
1265 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1266 | ||
3b85875a JB |
1267 | rtnl_lock(); |
1268 | ||
463d0183 | 1269 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1270 | if (err) |
3b85875a | 1271 | goto unlock_rtnl; |
41ade00f | 1272 | |
79c97e97 | 1273 | if (!rdev->ops->get_key) { |
41ade00f JB |
1274 | err = -EOPNOTSUPP; |
1275 | goto out; | |
1276 | } | |
1277 | ||
fd2120ca | 1278 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1279 | if (!msg) { |
1280 | err = -ENOMEM; | |
1281 | goto out; | |
1282 | } | |
1283 | ||
1284 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1285 | NL80211_CMD_NEW_KEY); | |
1286 | ||
1287 | if (IS_ERR(hdr)) { | |
1288 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1289 | goto free_msg; |
41ade00f JB |
1290 | } |
1291 | ||
1292 | cookie.msg = msg; | |
b9454e83 | 1293 | cookie.idx = key_idx; |
41ade00f JB |
1294 | |
1295 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1296 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1297 | if (mac_addr) | |
1298 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1299 | ||
79c97e97 | 1300 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1301 | &cookie, get_key_callback); |
41ade00f JB |
1302 | |
1303 | if (err) | |
6c95e2a2 | 1304 | goto free_msg; |
41ade00f JB |
1305 | |
1306 | if (cookie.error) | |
1307 | goto nla_put_failure; | |
1308 | ||
1309 | genlmsg_end(msg, hdr); | |
134e6375 | 1310 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1311 | goto out; |
1312 | ||
1313 | nla_put_failure: | |
1314 | err = -ENOBUFS; | |
6c95e2a2 | 1315 | free_msg: |
41ade00f JB |
1316 | nlmsg_free(msg); |
1317 | out: | |
79c97e97 | 1318 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1319 | dev_put(dev); |
3b85875a JB |
1320 | unlock_rtnl: |
1321 | rtnl_unlock(); | |
1322 | ||
41ade00f JB |
1323 | return err; |
1324 | } | |
1325 | ||
1326 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1327 | { | |
79c97e97 | 1328 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1329 | struct key_parse key; |
41ade00f JB |
1330 | int err; |
1331 | struct net_device *dev; | |
3cfcf6ac JM |
1332 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1333 | u8 key_index); | |
41ade00f | 1334 | |
b9454e83 JB |
1335 | err = nl80211_parse_key(info, &key); |
1336 | if (err) | |
1337 | return err; | |
41ade00f | 1338 | |
b9454e83 | 1339 | if (key.idx < 0) |
41ade00f JB |
1340 | return -EINVAL; |
1341 | ||
b9454e83 JB |
1342 | /* only support setting default key */ |
1343 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1344 | return -EINVAL; |
1345 | ||
3b85875a JB |
1346 | rtnl_lock(); |
1347 | ||
463d0183 | 1348 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1349 | if (err) |
3b85875a | 1350 | goto unlock_rtnl; |
41ade00f | 1351 | |
b9454e83 | 1352 | if (key.def) |
79c97e97 | 1353 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1354 | else |
79c97e97 | 1355 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1356 | |
1357 | if (!func) { | |
41ade00f JB |
1358 | err = -EOPNOTSUPP; |
1359 | goto out; | |
1360 | } | |
1361 | ||
fffd0934 JB |
1362 | wdev_lock(dev->ieee80211_ptr); |
1363 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1364 | if (!err) | |
1365 | err = func(&rdev->wiphy, dev, key.idx); | |
1366 | ||
3d23e349 | 1367 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1368 | if (!err) { |
79c97e97 | 1369 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1370 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1371 | else |
b9454e83 | 1372 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1373 | } |
1374 | #endif | |
fffd0934 | 1375 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1376 | |
1377 | out: | |
79c97e97 | 1378 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1379 | dev_put(dev); |
3b85875a JB |
1380 | |
1381 | unlock_rtnl: | |
1382 | rtnl_unlock(); | |
1383 | ||
41ade00f JB |
1384 | return err; |
1385 | } | |
1386 | ||
1387 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1388 | { | |
79c97e97 | 1389 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1390 | int err; |
41ade00f | 1391 | struct net_device *dev; |
b9454e83 | 1392 | struct key_parse key; |
41ade00f JB |
1393 | u8 *mac_addr = NULL; |
1394 | ||
b9454e83 JB |
1395 | err = nl80211_parse_key(info, &key); |
1396 | if (err) | |
1397 | return err; | |
41ade00f | 1398 | |
b9454e83 | 1399 | if (!key.p.key) |
41ade00f JB |
1400 | return -EINVAL; |
1401 | ||
41ade00f JB |
1402 | if (info->attrs[NL80211_ATTR_MAC]) |
1403 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1404 | ||
3b85875a JB |
1405 | rtnl_lock(); |
1406 | ||
463d0183 | 1407 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1408 | if (err) |
3b85875a | 1409 | goto unlock_rtnl; |
41ade00f | 1410 | |
fffd0934 JB |
1411 | if (!rdev->ops->add_key) { |
1412 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1413 | goto out; |
1414 | } | |
1415 | ||
fffd0934 JB |
1416 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1417 | err = -EINVAL; | |
41ade00f JB |
1418 | goto out; |
1419 | } | |
1420 | ||
fffd0934 JB |
1421 | wdev_lock(dev->ieee80211_ptr); |
1422 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1423 | if (!err) | |
1424 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1425 | mac_addr, &key.p); | |
1426 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1427 | |
1428 | out: | |
79c97e97 | 1429 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1430 | dev_put(dev); |
3b85875a JB |
1431 | unlock_rtnl: |
1432 | rtnl_unlock(); | |
1433 | ||
41ade00f JB |
1434 | return err; |
1435 | } | |
1436 | ||
1437 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1438 | { | |
79c97e97 | 1439 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1440 | int err; |
1441 | struct net_device *dev; | |
41ade00f | 1442 | u8 *mac_addr = NULL; |
b9454e83 | 1443 | struct key_parse key; |
41ade00f | 1444 | |
b9454e83 JB |
1445 | err = nl80211_parse_key(info, &key); |
1446 | if (err) | |
1447 | return err; | |
41ade00f JB |
1448 | |
1449 | if (info->attrs[NL80211_ATTR_MAC]) | |
1450 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1451 | ||
3b85875a JB |
1452 | rtnl_lock(); |
1453 | ||
463d0183 | 1454 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1455 | if (err) |
3b85875a | 1456 | goto unlock_rtnl; |
41ade00f | 1457 | |
79c97e97 | 1458 | if (!rdev->ops->del_key) { |
41ade00f JB |
1459 | err = -EOPNOTSUPP; |
1460 | goto out; | |
1461 | } | |
1462 | ||
fffd0934 JB |
1463 | wdev_lock(dev->ieee80211_ptr); |
1464 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1465 | if (!err) | |
1466 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1467 | |
3d23e349 | 1468 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1469 | if (!err) { |
b9454e83 | 1470 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1471 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1472 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1473 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1474 | } | |
1475 | #endif | |
fffd0934 | 1476 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1477 | |
41ade00f | 1478 | out: |
79c97e97 | 1479 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1480 | dev_put(dev); |
3b85875a JB |
1481 | |
1482 | unlock_rtnl: | |
1483 | rtnl_unlock(); | |
1484 | ||
41ade00f JB |
1485 | return err; |
1486 | } | |
1487 | ||
ed1b6cc7 JB |
1488 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1489 | { | |
1490 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1491 | struct beacon_parameters *info); | |
79c97e97 | 1492 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1493 | int err; |
1494 | struct net_device *dev; | |
1495 | struct beacon_parameters params; | |
1496 | int haveinfo = 0; | |
1497 | ||
f4a11bb0 JB |
1498 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1499 | return -EINVAL; | |
1500 | ||
3b85875a JB |
1501 | rtnl_lock(); |
1502 | ||
463d0183 | 1503 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1504 | if (err) |
3b85875a | 1505 | goto unlock_rtnl; |
ed1b6cc7 | 1506 | |
eec60b03 JM |
1507 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1508 | err = -EOPNOTSUPP; | |
1509 | goto out; | |
1510 | } | |
1511 | ||
ed1b6cc7 JB |
1512 | switch (info->genlhdr->cmd) { |
1513 | case NL80211_CMD_NEW_BEACON: | |
1514 | /* these are required for NEW_BEACON */ | |
1515 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1516 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1517 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1518 | err = -EINVAL; | |
1519 | goto out; | |
1520 | } | |
1521 | ||
79c97e97 | 1522 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1523 | break; |
1524 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1525 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1526 | break; |
1527 | default: | |
1528 | WARN_ON(1); | |
1529 | err = -EOPNOTSUPP; | |
1530 | goto out; | |
1531 | } | |
1532 | ||
1533 | if (!call) { | |
1534 | err = -EOPNOTSUPP; | |
1535 | goto out; | |
1536 | } | |
1537 | ||
1538 | memset(¶ms, 0, sizeof(params)); | |
1539 | ||
1540 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1541 | params.interval = | |
1542 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1543 | haveinfo = 1; | |
1544 | } | |
1545 | ||
1546 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1547 | params.dtim_period = | |
1548 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1549 | haveinfo = 1; | |
1550 | } | |
1551 | ||
1552 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1553 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1554 | params.head_len = | |
1555 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1556 | haveinfo = 1; | |
1557 | } | |
1558 | ||
1559 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1560 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1561 | params.tail_len = | |
1562 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1563 | haveinfo = 1; | |
1564 | } | |
1565 | ||
1566 | if (!haveinfo) { | |
1567 | err = -EINVAL; | |
1568 | goto out; | |
1569 | } | |
1570 | ||
79c97e97 | 1571 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1572 | |
1573 | out: | |
79c97e97 | 1574 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1575 | dev_put(dev); |
3b85875a JB |
1576 | unlock_rtnl: |
1577 | rtnl_unlock(); | |
1578 | ||
ed1b6cc7 JB |
1579 | return err; |
1580 | } | |
1581 | ||
1582 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1583 | { | |
79c97e97 | 1584 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1585 | int err; |
1586 | struct net_device *dev; | |
1587 | ||
3b85875a JB |
1588 | rtnl_lock(); |
1589 | ||
463d0183 | 1590 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1591 | if (err) |
3b85875a | 1592 | goto unlock_rtnl; |
ed1b6cc7 | 1593 | |
79c97e97 | 1594 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1595 | err = -EOPNOTSUPP; |
1596 | goto out; | |
1597 | } | |
1598 | ||
eec60b03 JM |
1599 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1600 | err = -EOPNOTSUPP; | |
1601 | goto out; | |
1602 | } | |
79c97e97 | 1603 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1604 | |
1605 | out: | |
79c97e97 | 1606 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1607 | dev_put(dev); |
3b85875a JB |
1608 | unlock_rtnl: |
1609 | rtnl_unlock(); | |
1610 | ||
ed1b6cc7 JB |
1611 | return err; |
1612 | } | |
1613 | ||
5727ef1b JB |
1614 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1615 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1616 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1617 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1618 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1619 | }; |
1620 | ||
eccb8e8f JB |
1621 | static int parse_station_flags(struct genl_info *info, |
1622 | struct station_parameters *params) | |
5727ef1b JB |
1623 | { |
1624 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1625 | struct nlattr *nla; |
5727ef1b JB |
1626 | int flag; |
1627 | ||
eccb8e8f JB |
1628 | /* |
1629 | * Try parsing the new attribute first so userspace | |
1630 | * can specify both for older kernels. | |
1631 | */ | |
1632 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1633 | if (nla) { | |
1634 | struct nl80211_sta_flag_update *sta_flags; | |
1635 | ||
1636 | sta_flags = nla_data(nla); | |
1637 | params->sta_flags_mask = sta_flags->mask; | |
1638 | params->sta_flags_set = sta_flags->set; | |
1639 | if ((params->sta_flags_mask | | |
1640 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1641 | return -EINVAL; | |
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | /* if present, parse the old attribute */ | |
5727ef1b | 1646 | |
eccb8e8f | 1647 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1648 | if (!nla) |
1649 | return 0; | |
1650 | ||
1651 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1652 | nla, sta_flags_policy)) | |
1653 | return -EINVAL; | |
1654 | ||
eccb8e8f JB |
1655 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1656 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1657 | |
1658 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1659 | if (flags[flag]) | |
eccb8e8f | 1660 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1661 | |
1662 | return 0; | |
1663 | } | |
1664 | ||
fd5b74dc JB |
1665 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1666 | int flags, struct net_device *dev, | |
98b62183 | 1667 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1668 | { |
1669 | void *hdr; | |
420e7fab HR |
1670 | struct nlattr *sinfoattr, *txrate; |
1671 | u16 bitrate; | |
fd5b74dc JB |
1672 | |
1673 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1674 | if (!hdr) | |
1675 | return -1; | |
1676 | ||
1677 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1678 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1679 | ||
f5ea9120 JB |
1680 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1681 | ||
2ec600d6 LCC |
1682 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1683 | if (!sinfoattr) | |
fd5b74dc | 1684 | goto nla_put_failure; |
2ec600d6 LCC |
1685 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1686 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1687 | sinfo->inactive_time); | |
1688 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1689 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1690 | sinfo->rx_bytes); | |
1691 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1692 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1693 | sinfo->tx_bytes); | |
1694 | if (sinfo->filled & STATION_INFO_LLID) | |
1695 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1696 | sinfo->llid); | |
1697 | if (sinfo->filled & STATION_INFO_PLID) | |
1698 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1699 | sinfo->plid); | |
1700 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1701 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1702 | sinfo->plink_state); | |
420e7fab HR |
1703 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1704 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1705 | sinfo->signal); | |
1706 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1707 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1708 | if (!txrate) | |
1709 | goto nla_put_failure; | |
1710 | ||
254416aa JL |
1711 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1712 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1713 | if (bitrate > 0) |
1714 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1715 | |
420e7fab HR |
1716 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1717 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1718 | sinfo->txrate.mcs); | |
1719 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1720 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1721 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1722 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1723 | ||
1724 | nla_nest_end(msg, txrate); | |
1725 | } | |
98c8a60a JM |
1726 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1727 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1728 | sinfo->rx_packets); | |
1729 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1730 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1731 | sinfo->tx_packets); | |
2ec600d6 | 1732 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1733 | |
1734 | return genlmsg_end(msg, hdr); | |
1735 | ||
1736 | nla_put_failure: | |
bc3ed28c TG |
1737 | genlmsg_cancel(msg, hdr); |
1738 | return -EMSGSIZE; | |
fd5b74dc JB |
1739 | } |
1740 | ||
2ec600d6 | 1741 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1742 | struct netlink_callback *cb) |
2ec600d6 | 1743 | { |
2ec600d6 LCC |
1744 | struct station_info sinfo; |
1745 | struct cfg80211_registered_device *dev; | |
bba95fef | 1746 | struct net_device *netdev; |
2ec600d6 | 1747 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1748 | int ifidx = cb->args[0]; |
1749 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1750 | int err; |
2ec600d6 | 1751 | |
a043897a HS |
1752 | if (!ifidx) |
1753 | ifidx = nl80211_get_ifidx(cb); | |
1754 | if (ifidx < 0) | |
1755 | return ifidx; | |
2ec600d6 | 1756 | |
3b85875a JB |
1757 | rtnl_lock(); |
1758 | ||
463d0183 | 1759 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1760 | if (!netdev) { |
1761 | err = -ENODEV; | |
1762 | goto out_rtnl; | |
1763 | } | |
2ec600d6 | 1764 | |
463d0183 | 1765 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1766 | if (IS_ERR(dev)) { |
1767 | err = PTR_ERR(dev); | |
3b85875a | 1768 | goto out_rtnl; |
bba95fef JB |
1769 | } |
1770 | ||
1771 | if (!dev->ops->dump_station) { | |
eec60b03 | 1772 | err = -EOPNOTSUPP; |
bba95fef JB |
1773 | goto out_err; |
1774 | } | |
1775 | ||
bba95fef JB |
1776 | while (1) { |
1777 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1778 | mac_addr, &sinfo); | |
1779 | if (err == -ENOENT) | |
1780 | break; | |
1781 | if (err) | |
3b85875a | 1782 | goto out_err; |
bba95fef JB |
1783 | |
1784 | if (nl80211_send_station(skb, | |
1785 | NETLINK_CB(cb->skb).pid, | |
1786 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1787 | netdev, mac_addr, | |
1788 | &sinfo) < 0) | |
1789 | goto out; | |
1790 | ||
1791 | sta_idx++; | |
1792 | } | |
1793 | ||
1794 | ||
1795 | out: | |
1796 | cb->args[1] = sta_idx; | |
1797 | err = skb->len; | |
bba95fef | 1798 | out_err: |
4d0c8aea | 1799 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1800 | out_rtnl: |
1801 | rtnl_unlock(); | |
bba95fef JB |
1802 | |
1803 | return err; | |
2ec600d6 | 1804 | } |
fd5b74dc | 1805 | |
5727ef1b JB |
1806 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1807 | { | |
79c97e97 | 1808 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1809 | int err; |
1810 | struct net_device *dev; | |
2ec600d6 | 1811 | struct station_info sinfo; |
fd5b74dc JB |
1812 | struct sk_buff *msg; |
1813 | u8 *mac_addr = NULL; | |
1814 | ||
2ec600d6 | 1815 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1816 | |
1817 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1818 | return -EINVAL; | |
1819 | ||
1820 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1821 | ||
3b85875a JB |
1822 | rtnl_lock(); |
1823 | ||
463d0183 | 1824 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
fd5b74dc | 1825 | if (err) |
3b85875a | 1826 | goto out_rtnl; |
fd5b74dc | 1827 | |
79c97e97 | 1828 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
1829 | err = -EOPNOTSUPP; |
1830 | goto out; | |
1831 | } | |
1832 | ||
79c97e97 | 1833 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1834 | if (err) |
1835 | goto out; | |
1836 | ||
fd2120ca | 1837 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
1838 | if (!msg) |
1839 | goto out; | |
1840 | ||
1841 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1842 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1843 | goto out_free; |
1844 | ||
134e6375 | 1845 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
1846 | goto out; |
1847 | ||
1848 | out_free: | |
1849 | nlmsg_free(msg); | |
fd5b74dc | 1850 | out: |
79c97e97 | 1851 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 1852 | dev_put(dev); |
3b85875a JB |
1853 | out_rtnl: |
1854 | rtnl_unlock(); | |
1855 | ||
fd5b74dc | 1856 | return err; |
5727ef1b JB |
1857 | } |
1858 | ||
1859 | /* | |
c258d2de | 1860 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 1861 | */ |
463d0183 | 1862 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
1863 | struct cfg80211_registered_device *rdev, |
1864 | struct net_device **vlan) | |
1865 | { | |
463d0183 | 1866 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
1867 | *vlan = NULL; |
1868 | ||
1869 | if (vlanattr) { | |
463d0183 JB |
1870 | *vlan = dev_get_by_index(genl_info_net(info), |
1871 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
1872 | if (!*vlan) |
1873 | return -ENODEV; | |
1874 | if (!(*vlan)->ieee80211_ptr) | |
1875 | return -EINVAL; | |
1876 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1877 | return -EINVAL; | |
c258d2de FF |
1878 | if (!netif_running(*vlan)) |
1879 | return -ENETDOWN; | |
5727ef1b JB |
1880 | } |
1881 | return 0; | |
1882 | } | |
1883 | ||
1884 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1885 | { | |
79c97e97 | 1886 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1887 | int err; |
1888 | struct net_device *dev; | |
1889 | struct station_parameters params; | |
1890 | u8 *mac_addr = NULL; | |
1891 | ||
1892 | memset(¶ms, 0, sizeof(params)); | |
1893 | ||
1894 | params.listen_interval = -1; | |
1895 | ||
1896 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1897 | return -EINVAL; | |
1898 | ||
1899 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1900 | return -EINVAL; | |
1901 | ||
1902 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1903 | ||
1904 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1905 | params.supported_rates = | |
1906 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1907 | params.supported_rates_len = | |
1908 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1909 | } | |
1910 | ||
1911 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1912 | params.listen_interval = | |
1913 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1914 | ||
36aedc90 JM |
1915 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1916 | params.ht_capa = | |
1917 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1918 | ||
eccb8e8f | 1919 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1920 | return -EINVAL; |
1921 | ||
2ec600d6 LCC |
1922 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1923 | params.plink_action = | |
1924 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1925 | ||
3b85875a JB |
1926 | rtnl_lock(); |
1927 | ||
463d0183 | 1928 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 1929 | if (err) |
3b85875a | 1930 | goto out_rtnl; |
5727ef1b | 1931 | |
463d0183 | 1932 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 1933 | if (err) |
034d655e | 1934 | goto out; |
a97f4424 JB |
1935 | |
1936 | /* validate settings */ | |
1937 | err = 0; | |
1938 | ||
1939 | switch (dev->ieee80211_ptr->iftype) { | |
1940 | case NL80211_IFTYPE_AP: | |
1941 | case NL80211_IFTYPE_AP_VLAN: | |
1942 | /* disallow mesh-specific things */ | |
1943 | if (params.plink_action) | |
1944 | err = -EINVAL; | |
1945 | break; | |
1946 | case NL80211_IFTYPE_STATION: | |
1947 | /* disallow everything but AUTHORIZED flag */ | |
1948 | if (params.plink_action) | |
1949 | err = -EINVAL; | |
1950 | if (params.vlan) | |
1951 | err = -EINVAL; | |
1952 | if (params.supported_rates) | |
1953 | err = -EINVAL; | |
1954 | if (params.ht_capa) | |
1955 | err = -EINVAL; | |
1956 | if (params.listen_interval >= 0) | |
1957 | err = -EINVAL; | |
1958 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1959 | err = -EINVAL; | |
1960 | break; | |
1961 | case NL80211_IFTYPE_MESH_POINT: | |
1962 | /* disallow things mesh doesn't support */ | |
1963 | if (params.vlan) | |
1964 | err = -EINVAL; | |
1965 | if (params.ht_capa) | |
1966 | err = -EINVAL; | |
1967 | if (params.listen_interval >= 0) | |
1968 | err = -EINVAL; | |
1969 | if (params.supported_rates) | |
1970 | err = -EINVAL; | |
1971 | if (params.sta_flags_mask) | |
1972 | err = -EINVAL; | |
1973 | break; | |
1974 | default: | |
1975 | err = -EINVAL; | |
034d655e JB |
1976 | } |
1977 | ||
5727ef1b JB |
1978 | if (err) |
1979 | goto out; | |
1980 | ||
79c97e97 | 1981 | if (!rdev->ops->change_station) { |
5727ef1b JB |
1982 | err = -EOPNOTSUPP; |
1983 | goto out; | |
1984 | } | |
1985 | ||
79c97e97 | 1986 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1987 | |
1988 | out: | |
1989 | if (params.vlan) | |
1990 | dev_put(params.vlan); | |
79c97e97 | 1991 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 1992 | dev_put(dev); |
3b85875a JB |
1993 | out_rtnl: |
1994 | rtnl_unlock(); | |
1995 | ||
5727ef1b JB |
1996 | return err; |
1997 | } | |
1998 | ||
1999 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2000 | { | |
79c97e97 | 2001 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2002 | int err; |
2003 | struct net_device *dev; | |
2004 | struct station_parameters params; | |
2005 | u8 *mac_addr = NULL; | |
2006 | ||
2007 | memset(¶ms, 0, sizeof(params)); | |
2008 | ||
2009 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2010 | return -EINVAL; | |
2011 | ||
5727ef1b JB |
2012 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2013 | return -EINVAL; | |
2014 | ||
2015 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2016 | return -EINVAL; | |
2017 | ||
0e956c13 TLSC |
2018 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2019 | return -EINVAL; | |
2020 | ||
5727ef1b JB |
2021 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2022 | params.supported_rates = | |
2023 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2024 | params.supported_rates_len = | |
2025 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2026 | params.listen_interval = | |
2027 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2028 | |
0e956c13 TLSC |
2029 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2030 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2031 | return -EINVAL; | |
51b50fbe | 2032 | |
36aedc90 JM |
2033 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2034 | params.ht_capa = | |
2035 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2036 | |
eccb8e8f | 2037 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2038 | return -EINVAL; |
2039 | ||
3b85875a JB |
2040 | rtnl_lock(); |
2041 | ||
463d0183 | 2042 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2043 | if (err) |
3b85875a | 2044 | goto out_rtnl; |
5727ef1b | 2045 | |
0e956c13 TLSC |
2046 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
2047 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { | |
2048 | err = -EINVAL; | |
2049 | goto out; | |
2050 | } | |
2051 | ||
463d0183 | 2052 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2053 | if (err) |
e80cf853 | 2054 | goto out; |
a97f4424 JB |
2055 | |
2056 | /* validate settings */ | |
2057 | err = 0; | |
2058 | ||
79c97e97 | 2059 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2060 | err = -EOPNOTSUPP; |
2061 | goto out; | |
2062 | } | |
2063 | ||
35a8efe1 JM |
2064 | if (!netif_running(dev)) { |
2065 | err = -ENETDOWN; | |
2066 | goto out; | |
2067 | } | |
2068 | ||
79c97e97 | 2069 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2070 | |
2071 | out: | |
2072 | if (params.vlan) | |
2073 | dev_put(params.vlan); | |
79c97e97 | 2074 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2075 | dev_put(dev); |
3b85875a JB |
2076 | out_rtnl: |
2077 | rtnl_unlock(); | |
2078 | ||
5727ef1b JB |
2079 | return err; |
2080 | } | |
2081 | ||
2082 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2083 | { | |
79c97e97 | 2084 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2085 | int err; |
2086 | struct net_device *dev; | |
2087 | u8 *mac_addr = NULL; | |
2088 | ||
2089 | if (info->attrs[NL80211_ATTR_MAC]) | |
2090 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2091 | ||
3b85875a JB |
2092 | rtnl_lock(); |
2093 | ||
463d0183 | 2094 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2095 | if (err) |
3b85875a | 2096 | goto out_rtnl; |
5727ef1b | 2097 | |
e80cf853 | 2098 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
0e956c13 | 2099 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { |
e80cf853 JB |
2100 | err = -EINVAL; |
2101 | goto out; | |
2102 | } | |
2103 | ||
79c97e97 | 2104 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2105 | err = -EOPNOTSUPP; |
2106 | goto out; | |
2107 | } | |
2108 | ||
79c97e97 | 2109 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2110 | |
2111 | out: | |
79c97e97 | 2112 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2113 | dev_put(dev); |
3b85875a JB |
2114 | out_rtnl: |
2115 | rtnl_unlock(); | |
2116 | ||
5727ef1b JB |
2117 | return err; |
2118 | } | |
2119 | ||
2ec600d6 LCC |
2120 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2121 | int flags, struct net_device *dev, | |
2122 | u8 *dst, u8 *next_hop, | |
2123 | struct mpath_info *pinfo) | |
2124 | { | |
2125 | void *hdr; | |
2126 | struct nlattr *pinfoattr; | |
2127 | ||
2128 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2129 | if (!hdr) | |
2130 | return -1; | |
2131 | ||
2132 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2133 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2134 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2135 | ||
f5ea9120 JB |
2136 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2137 | ||
2ec600d6 LCC |
2138 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2139 | if (!pinfoattr) | |
2140 | goto nla_put_failure; | |
2141 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2142 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2143 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2144 | if (pinfo->filled & MPATH_INFO_SN) |
2145 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2146 | pinfo->sn); | |
2ec600d6 LCC |
2147 | if (pinfo->filled & MPATH_INFO_METRIC) |
2148 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2149 | pinfo->metric); | |
2150 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2151 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2152 | pinfo->exptime); | |
2153 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2154 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2155 | pinfo->flags); | |
2156 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2157 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2158 | pinfo->discovery_timeout); | |
2159 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2160 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2161 | pinfo->discovery_retries); | |
2162 | ||
2163 | nla_nest_end(msg, pinfoattr); | |
2164 | ||
2165 | return genlmsg_end(msg, hdr); | |
2166 | ||
2167 | nla_put_failure: | |
bc3ed28c TG |
2168 | genlmsg_cancel(msg, hdr); |
2169 | return -EMSGSIZE; | |
2ec600d6 LCC |
2170 | } |
2171 | ||
2172 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2173 | struct netlink_callback *cb) |
2ec600d6 | 2174 | { |
2ec600d6 LCC |
2175 | struct mpath_info pinfo; |
2176 | struct cfg80211_registered_device *dev; | |
bba95fef | 2177 | struct net_device *netdev; |
2ec600d6 LCC |
2178 | u8 dst[ETH_ALEN]; |
2179 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2180 | int ifidx = cb->args[0]; |
2181 | int path_idx = cb->args[1]; | |
2ec600d6 | 2182 | int err; |
2ec600d6 | 2183 | |
a043897a HS |
2184 | if (!ifidx) |
2185 | ifidx = nl80211_get_ifidx(cb); | |
2186 | if (ifidx < 0) | |
2187 | return ifidx; | |
bba95fef | 2188 | |
3b85875a JB |
2189 | rtnl_lock(); |
2190 | ||
463d0183 | 2191 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2192 | if (!netdev) { |
2193 | err = -ENODEV; | |
2194 | goto out_rtnl; | |
2195 | } | |
bba95fef | 2196 | |
463d0183 | 2197 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2198 | if (IS_ERR(dev)) { |
2199 | err = PTR_ERR(dev); | |
3b85875a | 2200 | goto out_rtnl; |
bba95fef JB |
2201 | } |
2202 | ||
2203 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2204 | err = -EOPNOTSUPP; |
bba95fef JB |
2205 | goto out_err; |
2206 | } | |
2207 | ||
eec60b03 JM |
2208 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2209 | err = -EOPNOTSUPP; | |
0448b5fc | 2210 | goto out_err; |
eec60b03 JM |
2211 | } |
2212 | ||
bba95fef JB |
2213 | while (1) { |
2214 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2215 | dst, next_hop, &pinfo); | |
2216 | if (err == -ENOENT) | |
2ec600d6 | 2217 | break; |
bba95fef | 2218 | if (err) |
3b85875a | 2219 | goto out_err; |
2ec600d6 | 2220 | |
bba95fef JB |
2221 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2222 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2223 | netdev, dst, next_hop, | |
2224 | &pinfo) < 0) | |
2225 | goto out; | |
2ec600d6 | 2226 | |
bba95fef | 2227 | path_idx++; |
2ec600d6 | 2228 | } |
2ec600d6 | 2229 | |
2ec600d6 | 2230 | |
bba95fef JB |
2231 | out: |
2232 | cb->args[1] = path_idx; | |
2233 | err = skb->len; | |
bba95fef | 2234 | out_err: |
4d0c8aea | 2235 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2236 | out_rtnl: |
2237 | rtnl_unlock(); | |
bba95fef JB |
2238 | |
2239 | return err; | |
2ec600d6 LCC |
2240 | } |
2241 | ||
2242 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2243 | { | |
79c97e97 | 2244 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2245 | int err; |
2246 | struct net_device *dev; | |
2247 | struct mpath_info pinfo; | |
2248 | struct sk_buff *msg; | |
2249 | u8 *dst = NULL; | |
2250 | u8 next_hop[ETH_ALEN]; | |
2251 | ||
2252 | memset(&pinfo, 0, sizeof(pinfo)); | |
2253 | ||
2254 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2255 | return -EINVAL; | |
2256 | ||
2257 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2258 | ||
3b85875a JB |
2259 | rtnl_lock(); |
2260 | ||
463d0183 | 2261 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2262 | if (err) |
3b85875a | 2263 | goto out_rtnl; |
2ec600d6 | 2264 | |
79c97e97 | 2265 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2266 | err = -EOPNOTSUPP; |
2267 | goto out; | |
2268 | } | |
2269 | ||
eec60b03 JM |
2270 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2271 | err = -EOPNOTSUPP; | |
2272 | goto out; | |
2273 | } | |
2274 | ||
79c97e97 | 2275 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2276 | if (err) |
2277 | goto out; | |
2278 | ||
fd2120ca | 2279 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2280 | if (!msg) |
2281 | goto out; | |
2282 | ||
2283 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2284 | dev, dst, next_hop, &pinfo) < 0) | |
2285 | goto out_free; | |
2286 | ||
134e6375 | 2287 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2288 | goto out; |
2289 | ||
2290 | out_free: | |
2291 | nlmsg_free(msg); | |
2ec600d6 | 2292 | out: |
79c97e97 | 2293 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2294 | dev_put(dev); |
3b85875a JB |
2295 | out_rtnl: |
2296 | rtnl_unlock(); | |
2297 | ||
2ec600d6 LCC |
2298 | return err; |
2299 | } | |
2300 | ||
2301 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2302 | { | |
79c97e97 | 2303 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2304 | int err; |
2305 | struct net_device *dev; | |
2306 | u8 *dst = NULL; | |
2307 | u8 *next_hop = NULL; | |
2308 | ||
2309 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2310 | return -EINVAL; | |
2311 | ||
2312 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2313 | return -EINVAL; | |
2314 | ||
2315 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2316 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2317 | ||
3b85875a JB |
2318 | rtnl_lock(); |
2319 | ||
463d0183 | 2320 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2321 | if (err) |
3b85875a | 2322 | goto out_rtnl; |
2ec600d6 | 2323 | |
79c97e97 | 2324 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2325 | err = -EOPNOTSUPP; |
2326 | goto out; | |
2327 | } | |
2328 | ||
eec60b03 JM |
2329 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2330 | err = -EOPNOTSUPP; | |
2331 | goto out; | |
2332 | } | |
2333 | ||
35a8efe1 JM |
2334 | if (!netif_running(dev)) { |
2335 | err = -ENETDOWN; | |
2336 | goto out; | |
2337 | } | |
2338 | ||
79c97e97 | 2339 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2340 | |
2341 | out: | |
79c97e97 | 2342 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2343 | dev_put(dev); |
3b85875a JB |
2344 | out_rtnl: |
2345 | rtnl_unlock(); | |
2346 | ||
2ec600d6 LCC |
2347 | return err; |
2348 | } | |
2349 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2350 | { | |
79c97e97 | 2351 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2352 | int err; |
2353 | struct net_device *dev; | |
2354 | u8 *dst = NULL; | |
2355 | u8 *next_hop = NULL; | |
2356 | ||
2357 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2358 | return -EINVAL; | |
2359 | ||
2360 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2361 | return -EINVAL; | |
2362 | ||
2363 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2364 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2365 | ||
3b85875a JB |
2366 | rtnl_lock(); |
2367 | ||
463d0183 | 2368 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2369 | if (err) |
3b85875a | 2370 | goto out_rtnl; |
2ec600d6 | 2371 | |
79c97e97 | 2372 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2373 | err = -EOPNOTSUPP; |
2374 | goto out; | |
2375 | } | |
2376 | ||
eec60b03 JM |
2377 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2378 | err = -EOPNOTSUPP; | |
2379 | goto out; | |
2380 | } | |
2381 | ||
35a8efe1 JM |
2382 | if (!netif_running(dev)) { |
2383 | err = -ENETDOWN; | |
2384 | goto out; | |
2385 | } | |
2386 | ||
79c97e97 | 2387 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2388 | |
2389 | out: | |
79c97e97 | 2390 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2391 | dev_put(dev); |
3b85875a JB |
2392 | out_rtnl: |
2393 | rtnl_unlock(); | |
2394 | ||
2ec600d6 LCC |
2395 | return err; |
2396 | } | |
2397 | ||
2398 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2399 | { | |
79c97e97 | 2400 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2401 | int err; |
2402 | struct net_device *dev; | |
2403 | u8 *dst = NULL; | |
2404 | ||
2405 | if (info->attrs[NL80211_ATTR_MAC]) | |
2406 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2407 | ||
3b85875a JB |
2408 | rtnl_lock(); |
2409 | ||
463d0183 | 2410 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2411 | if (err) |
3b85875a | 2412 | goto out_rtnl; |
2ec600d6 | 2413 | |
79c97e97 | 2414 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2415 | err = -EOPNOTSUPP; |
2416 | goto out; | |
2417 | } | |
2418 | ||
79c97e97 | 2419 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2420 | |
2421 | out: | |
79c97e97 | 2422 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2423 | dev_put(dev); |
3b85875a JB |
2424 | out_rtnl: |
2425 | rtnl_unlock(); | |
2426 | ||
2ec600d6 LCC |
2427 | return err; |
2428 | } | |
2429 | ||
9f1ba906 JM |
2430 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2431 | { | |
79c97e97 | 2432 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2433 | int err; |
2434 | struct net_device *dev; | |
2435 | struct bss_parameters params; | |
2436 | ||
2437 | memset(¶ms, 0, sizeof(params)); | |
2438 | /* default to not changing parameters */ | |
2439 | params.use_cts_prot = -1; | |
2440 | params.use_short_preamble = -1; | |
2441 | params.use_short_slot_time = -1; | |
2442 | ||
2443 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2444 | params.use_cts_prot = | |
2445 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2446 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2447 | params.use_short_preamble = | |
2448 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2449 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2450 | params.use_short_slot_time = | |
2451 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2452 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2453 | params.basic_rates = | |
2454 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2455 | params.basic_rates_len = | |
2456 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2457 | } | |
9f1ba906 | 2458 | |
3b85875a JB |
2459 | rtnl_lock(); |
2460 | ||
463d0183 | 2461 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
9f1ba906 | 2462 | if (err) |
3b85875a | 2463 | goto out_rtnl; |
9f1ba906 | 2464 | |
79c97e97 | 2465 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2466 | err = -EOPNOTSUPP; |
2467 | goto out; | |
2468 | } | |
2469 | ||
eec60b03 JM |
2470 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2471 | err = -EOPNOTSUPP; | |
2472 | goto out; | |
2473 | } | |
2474 | ||
79c97e97 | 2475 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2476 | |
2477 | out: | |
79c97e97 | 2478 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2479 | dev_put(dev); |
3b85875a JB |
2480 | out_rtnl: |
2481 | rtnl_unlock(); | |
2482 | ||
9f1ba906 JM |
2483 | return err; |
2484 | } | |
2485 | ||
b54452b0 | 2486 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2487 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2488 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2489 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2490 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2491 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2492 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2493 | }; | |
2494 | ||
2495 | static int parse_reg_rule(struct nlattr *tb[], | |
2496 | struct ieee80211_reg_rule *reg_rule) | |
2497 | { | |
2498 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2499 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2500 | ||
2501 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2502 | return -EINVAL; | |
2503 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2504 | return -EINVAL; | |
2505 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2506 | return -EINVAL; | |
2507 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2508 | return -EINVAL; | |
2509 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2510 | return -EINVAL; | |
2511 | ||
2512 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2513 | ||
2514 | freq_range->start_freq_khz = | |
2515 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2516 | freq_range->end_freq_khz = | |
2517 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2518 | freq_range->max_bandwidth_khz = | |
2519 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2520 | ||
2521 | power_rule->max_eirp = | |
2522 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2523 | ||
2524 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2525 | power_rule->max_antenna_gain = | |
2526 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2527 | ||
2528 | return 0; | |
2529 | } | |
2530 | ||
2531 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2532 | { | |
2533 | int r; | |
2534 | char *data = NULL; | |
2535 | ||
80778f18 LR |
2536 | /* |
2537 | * You should only get this when cfg80211 hasn't yet initialized | |
2538 | * completely when built-in to the kernel right between the time | |
2539 | * window between nl80211_init() and regulatory_init(), if that is | |
2540 | * even possible. | |
2541 | */ | |
2542 | mutex_lock(&cfg80211_mutex); | |
2543 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2544 | mutex_unlock(&cfg80211_mutex); |
2545 | return -EINPROGRESS; | |
80778f18 | 2546 | } |
fe33eb39 | 2547 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2548 | |
fe33eb39 LR |
2549 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2550 | return -EINVAL; | |
b2e1b302 LR |
2551 | |
2552 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2553 | ||
fe33eb39 LR |
2554 | r = regulatory_hint_user(data); |
2555 | ||
b2e1b302 LR |
2556 | return r; |
2557 | } | |
2558 | ||
93da9cc1 | 2559 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2560 | struct genl_info *info) | |
2561 | { | |
79c97e97 | 2562 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2563 | struct mesh_config cur_params; |
2564 | int err; | |
2565 | struct net_device *dev; | |
2566 | void *hdr; | |
2567 | struct nlattr *pinfoattr; | |
2568 | struct sk_buff *msg; | |
2569 | ||
3b85875a JB |
2570 | rtnl_lock(); |
2571 | ||
93da9cc1 | 2572 | /* Look up our device */ |
463d0183 | 2573 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2574 | if (err) |
3b85875a | 2575 | goto out_rtnl; |
93da9cc1 | 2576 | |
79c97e97 | 2577 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2578 | err = -EOPNOTSUPP; |
2579 | goto out; | |
2580 | } | |
2581 | ||
93da9cc1 | 2582 | /* Get the mesh params */ |
79c97e97 | 2583 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2584 | if (err) |
2585 | goto out; | |
2586 | ||
2587 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2588 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2589 | if (!msg) { |
2590 | err = -ENOBUFS; | |
2591 | goto out; | |
2592 | } | |
2593 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2594 | NL80211_CMD_GET_MESH_PARAMS); | |
2595 | if (!hdr) | |
2596 | goto nla_put_failure; | |
2597 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2598 | if (!pinfoattr) | |
2599 | goto nla_put_failure; | |
2600 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2601 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2602 | cur_params.dot11MeshRetryTimeout); | |
2603 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2604 | cur_params.dot11MeshConfirmTimeout); | |
2605 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2606 | cur_params.dot11MeshHoldingTimeout); | |
2607 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2608 | cur_params.dot11MeshMaxPeerLinks); | |
2609 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2610 | cur_params.dot11MeshMaxRetries); | |
2611 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2612 | cur_params.dot11MeshTTL); | |
2613 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2614 | cur_params.auto_open_plinks); | |
2615 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2616 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2617 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2618 | cur_params.path_refresh_time); | |
2619 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2620 | cur_params.min_discovery_timeout); | |
2621 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2622 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2623 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2624 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2625 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2626 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2627 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2628 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2629 | nla_nest_end(msg, pinfoattr); |
2630 | genlmsg_end(msg, hdr); | |
134e6375 | 2631 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2632 | goto out; |
2633 | ||
3b85875a | 2634 | nla_put_failure: |
93da9cc1 | 2635 | genlmsg_cancel(msg, hdr); |
2636 | err = -EMSGSIZE; | |
3b85875a | 2637 | out: |
93da9cc1 | 2638 | /* Cleanup */ |
79c97e97 | 2639 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2640 | dev_put(dev); |
3b85875a JB |
2641 | out_rtnl: |
2642 | rtnl_unlock(); | |
2643 | ||
93da9cc1 | 2644 | return err; |
2645 | } | |
2646 | ||
2647 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2648 | do {\ | |
2649 | if (table[attr_num]) {\ | |
2650 | cfg.param = nla_fn(table[attr_num]); \ | |
2651 | mask |= (1 << (attr_num - 1)); \ | |
2652 | } \ | |
2653 | } while (0);\ | |
2654 | ||
b54452b0 | 2655 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2656 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2657 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2658 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2659 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2660 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2661 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2662 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2663 | ||
2664 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2665 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2666 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2667 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2668 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2669 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2670 | }; | |
2671 | ||
2672 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2673 | { | |
2674 | int err; | |
2675 | u32 mask; | |
79c97e97 | 2676 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2677 | struct net_device *dev; |
2678 | struct mesh_config cfg; | |
2679 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2680 | struct nlattr *parent_attr; | |
2681 | ||
2682 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2683 | if (!parent_attr) | |
2684 | return -EINVAL; | |
2685 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2686 | parent_attr, nl80211_meshconf_params_policy)) | |
2687 | return -EINVAL; | |
2688 | ||
3b85875a JB |
2689 | rtnl_lock(); |
2690 | ||
463d0183 | 2691 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2692 | if (err) |
3b85875a | 2693 | goto out_rtnl; |
93da9cc1 | 2694 | |
79c97e97 | 2695 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2696 | err = -EOPNOTSUPP; |
2697 | goto out; | |
2698 | } | |
2699 | ||
93da9cc1 | 2700 | /* This makes sure that there aren't more than 32 mesh config |
2701 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2702 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2703 | ||
2704 | /* Fill in the params struct */ | |
2705 | mask = 0; | |
2706 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2707 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2708 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2709 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2710 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2711 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2712 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2713 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2714 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2715 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2716 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2717 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2718 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2719 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2720 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2721 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2722 | nla_get_u8); | |
2723 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2724 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2725 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2726 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2727 | nla_get_u16); | |
2728 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2729 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2730 | nla_get_u32); | |
2731 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2732 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2733 | nla_get_u16); | |
2734 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2735 | dot11MeshHWMPnetDiameterTraversalTime, | |
2736 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2737 | nla_get_u16); | |
63c5723b RP |
2738 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2739 | dot11MeshHWMPRootMode, mask, | |
2740 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2741 | nla_get_u8); | |
93da9cc1 | 2742 | |
2743 | /* Apply changes */ | |
79c97e97 | 2744 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2745 | |
f3f92586 | 2746 | out: |
93da9cc1 | 2747 | /* cleanup */ |
79c97e97 | 2748 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2749 | dev_put(dev); |
3b85875a JB |
2750 | out_rtnl: |
2751 | rtnl_unlock(); | |
2752 | ||
93da9cc1 | 2753 | return err; |
2754 | } | |
2755 | ||
2756 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2757 | ||
f130347c LR |
2758 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2759 | { | |
2760 | struct sk_buff *msg; | |
2761 | void *hdr = NULL; | |
2762 | struct nlattr *nl_reg_rules; | |
2763 | unsigned int i; | |
2764 | int err = -EINVAL; | |
2765 | ||
a1794390 | 2766 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2767 | |
2768 | if (!cfg80211_regdomain) | |
2769 | goto out; | |
2770 | ||
fd2120ca | 2771 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2772 | if (!msg) { |
2773 | err = -ENOBUFS; | |
2774 | goto out; | |
2775 | } | |
2776 | ||
2777 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2778 | NL80211_CMD_GET_REG); | |
2779 | if (!hdr) | |
2780 | goto nla_put_failure; | |
2781 | ||
2782 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2783 | cfg80211_regdomain->alpha2); | |
2784 | ||
2785 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2786 | if (!nl_reg_rules) | |
2787 | goto nla_put_failure; | |
2788 | ||
2789 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2790 | struct nlattr *nl_reg_rule; | |
2791 | const struct ieee80211_reg_rule *reg_rule; | |
2792 | const struct ieee80211_freq_range *freq_range; | |
2793 | const struct ieee80211_power_rule *power_rule; | |
2794 | ||
2795 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2796 | freq_range = ®_rule->freq_range; | |
2797 | power_rule = ®_rule->power_rule; | |
2798 | ||
2799 | nl_reg_rule = nla_nest_start(msg, i); | |
2800 | if (!nl_reg_rule) | |
2801 | goto nla_put_failure; | |
2802 | ||
2803 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2804 | reg_rule->flags); | |
2805 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2806 | freq_range->start_freq_khz); | |
2807 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2808 | freq_range->end_freq_khz); | |
2809 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2810 | freq_range->max_bandwidth_khz); | |
2811 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2812 | power_rule->max_antenna_gain); | |
2813 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2814 | power_rule->max_eirp); | |
2815 | ||
2816 | nla_nest_end(msg, nl_reg_rule); | |
2817 | } | |
2818 | ||
2819 | nla_nest_end(msg, nl_reg_rules); | |
2820 | ||
2821 | genlmsg_end(msg, hdr); | |
134e6375 | 2822 | err = genlmsg_reply(msg, info); |
f130347c LR |
2823 | goto out; |
2824 | ||
2825 | nla_put_failure: | |
2826 | genlmsg_cancel(msg, hdr); | |
2827 | err = -EMSGSIZE; | |
2828 | out: | |
a1794390 | 2829 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2830 | return err; |
2831 | } | |
2832 | ||
b2e1b302 LR |
2833 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2834 | { | |
2835 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2836 | struct nlattr *nl_reg_rule; | |
2837 | char *alpha2 = NULL; | |
2838 | int rem_reg_rules = 0, r = 0; | |
2839 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2840 | struct ieee80211_regdomain *rd = NULL; | |
2841 | ||
2842 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2843 | return -EINVAL; | |
2844 | ||
2845 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2846 | return -EINVAL; | |
2847 | ||
2848 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2849 | ||
2850 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2851 | rem_reg_rules) { | |
2852 | num_rules++; | |
2853 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2854 | return -EINVAL; |
b2e1b302 LR |
2855 | } |
2856 | ||
61405e97 LR |
2857 | mutex_lock(&cfg80211_mutex); |
2858 | ||
d0e18f83 LR |
2859 | if (!reg_is_valid_request(alpha2)) { |
2860 | r = -EINVAL; | |
2861 | goto bad_reg; | |
2862 | } | |
b2e1b302 LR |
2863 | |
2864 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2865 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2866 | ||
2867 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2868 | if (!rd) { |
2869 | r = -ENOMEM; | |
2870 | goto bad_reg; | |
2871 | } | |
b2e1b302 LR |
2872 | |
2873 | rd->n_reg_rules = num_rules; | |
2874 | rd->alpha2[0] = alpha2[0]; | |
2875 | rd->alpha2[1] = alpha2[1]; | |
2876 | ||
2877 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2878 | rem_reg_rules) { | |
2879 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2880 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2881 | reg_rule_policy); | |
2882 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2883 | if (r) | |
2884 | goto bad_reg; | |
2885 | ||
2886 | rule_idx++; | |
2887 | ||
d0e18f83 LR |
2888 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2889 | r = -EINVAL; | |
b2e1b302 | 2890 | goto bad_reg; |
d0e18f83 | 2891 | } |
b2e1b302 LR |
2892 | } |
2893 | ||
2894 | BUG_ON(rule_idx != num_rules); | |
2895 | ||
b2e1b302 | 2896 | r = set_regdom(rd); |
61405e97 | 2897 | |
a1794390 | 2898 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2899 | |
b2e1b302 LR |
2900 | return r; |
2901 | ||
d2372b31 | 2902 | bad_reg: |
61405e97 | 2903 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2904 | kfree(rd); |
d0e18f83 | 2905 | return r; |
b2e1b302 LR |
2906 | } |
2907 | ||
83f5e2cf JB |
2908 | static int validate_scan_freqs(struct nlattr *freqs) |
2909 | { | |
2910 | struct nlattr *attr1, *attr2; | |
2911 | int n_channels = 0, tmp1, tmp2; | |
2912 | ||
2913 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2914 | n_channels++; | |
2915 | /* | |
2916 | * Some hardware has a limited channel list for | |
2917 | * scanning, and it is pretty much nonsensical | |
2918 | * to scan for a channel twice, so disallow that | |
2919 | * and don't require drivers to check that the | |
2920 | * channel list they get isn't longer than what | |
2921 | * they can scan, as long as they can scan all | |
2922 | * the channels they registered at once. | |
2923 | */ | |
2924 | nla_for_each_nested(attr2, freqs, tmp2) | |
2925 | if (attr1 != attr2 && | |
2926 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2927 | return 0; | |
2928 | } | |
2929 | ||
2930 | return n_channels; | |
2931 | } | |
2932 | ||
2a519311 JB |
2933 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2934 | { | |
79c97e97 | 2935 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
2936 | struct net_device *dev; |
2937 | struct cfg80211_scan_request *request; | |
2938 | struct cfg80211_ssid *ssid; | |
2939 | struct ieee80211_channel *channel; | |
2940 | struct nlattr *attr; | |
2941 | struct wiphy *wiphy; | |
83f5e2cf | 2942 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2943 | enum ieee80211_band band; |
70692ad2 | 2944 | size_t ie_len; |
2a519311 | 2945 | |
f4a11bb0 JB |
2946 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2947 | return -EINVAL; | |
2948 | ||
3b85875a JB |
2949 | rtnl_lock(); |
2950 | ||
463d0183 | 2951 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2a519311 | 2952 | if (err) |
3b85875a | 2953 | goto out_rtnl; |
2a519311 | 2954 | |
79c97e97 | 2955 | wiphy = &rdev->wiphy; |
2a519311 | 2956 | |
79c97e97 | 2957 | if (!rdev->ops->scan) { |
2a519311 JB |
2958 | err = -EOPNOTSUPP; |
2959 | goto out; | |
2960 | } | |
2961 | ||
35a8efe1 JM |
2962 | if (!netif_running(dev)) { |
2963 | err = -ENETDOWN; | |
2964 | goto out; | |
2965 | } | |
2966 | ||
79c97e97 | 2967 | if (rdev->scan_req) { |
2a519311 | 2968 | err = -EBUSY; |
3b85875a | 2969 | goto out; |
2a519311 JB |
2970 | } |
2971 | ||
2972 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2973 | n_channels = validate_scan_freqs( |
2974 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
2975 | if (!n_channels) { |
2976 | err = -EINVAL; | |
3b85875a | 2977 | goto out; |
2a519311 JB |
2978 | } |
2979 | } else { | |
83f5e2cf JB |
2980 | n_channels = 0; |
2981 | ||
2a519311 JB |
2982 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2983 | if (wiphy->bands[band]) | |
2984 | n_channels += wiphy->bands[band]->n_channels; | |
2985 | } | |
2986 | ||
2987 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2988 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2989 | n_ssids++; | |
2990 | ||
2991 | if (n_ssids > wiphy->max_scan_ssids) { | |
2992 | err = -EINVAL; | |
3b85875a | 2993 | goto out; |
2a519311 JB |
2994 | } |
2995 | ||
70692ad2 JM |
2996 | if (info->attrs[NL80211_ATTR_IE]) |
2997 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2998 | else | |
2999 | ie_len = 0; | |
3000 | ||
18a83659 JB |
3001 | if (ie_len > wiphy->max_scan_ie_len) { |
3002 | err = -EINVAL; | |
3003 | goto out; | |
3004 | } | |
3005 | ||
2a519311 JB |
3006 | request = kzalloc(sizeof(*request) |
3007 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3008 | + sizeof(channel) * n_channels |
3009 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3010 | if (!request) { |
3011 | err = -ENOMEM; | |
3b85875a | 3012 | goto out; |
2a519311 JB |
3013 | } |
3014 | ||
2a519311 | 3015 | if (n_ssids) |
5ba63533 | 3016 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3017 | request->n_ssids = n_ssids; |
70692ad2 JM |
3018 | if (ie_len) { |
3019 | if (request->ssids) | |
3020 | request->ie = (void *)(request->ssids + n_ssids); | |
3021 | else | |
3022 | request->ie = (void *)(request->channels + n_channels); | |
3023 | } | |
2a519311 | 3024 | |
584991dc | 3025 | i = 0; |
2a519311 JB |
3026 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3027 | /* user specified, bail out if channel not found */ | |
2a519311 | 3028 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3029 | struct ieee80211_channel *chan; |
3030 | ||
3031 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3032 | ||
3033 | if (!chan) { | |
2a519311 JB |
3034 | err = -EINVAL; |
3035 | goto out_free; | |
3036 | } | |
584991dc JB |
3037 | |
3038 | /* ignore disabled channels */ | |
3039 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3040 | continue; | |
3041 | ||
3042 | request->channels[i] = chan; | |
2a519311 JB |
3043 | i++; |
3044 | } | |
3045 | } else { | |
3046 | /* all channels */ | |
2a519311 JB |
3047 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3048 | int j; | |
3049 | if (!wiphy->bands[band]) | |
3050 | continue; | |
3051 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3052 | struct ieee80211_channel *chan; |
3053 | ||
3054 | chan = &wiphy->bands[band]->channels[j]; | |
3055 | ||
3056 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3057 | continue; | |
3058 | ||
3059 | request->channels[i] = chan; | |
2a519311 JB |
3060 | i++; |
3061 | } | |
3062 | } | |
3063 | } | |
3064 | ||
584991dc JB |
3065 | if (!i) { |
3066 | err = -EINVAL; | |
3067 | goto out_free; | |
3068 | } | |
3069 | ||
3070 | request->n_channels = i; | |
3071 | ||
2a519311 JB |
3072 | i = 0; |
3073 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3074 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3075 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3076 | err = -EINVAL; | |
3077 | goto out_free; | |
3078 | } | |
3079 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3080 | request->ssids[i].ssid_len = nla_len(attr); | |
3081 | i++; | |
3082 | } | |
3083 | } | |
3084 | ||
70692ad2 JM |
3085 | if (info->attrs[NL80211_ATTR_IE]) { |
3086 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3087 | memcpy((void *)request->ie, |
3088 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3089 | request->ie_len); |
3090 | } | |
3091 | ||
463d0183 | 3092 | request->dev = dev; |
79c97e97 | 3093 | request->wiphy = &rdev->wiphy; |
2a519311 | 3094 | |
79c97e97 JB |
3095 | rdev->scan_req = request; |
3096 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3097 | |
463d0183 | 3098 | if (!err) { |
79c97e97 | 3099 | nl80211_send_scan_start(rdev, dev); |
463d0183 JB |
3100 | dev_hold(dev); |
3101 | } | |
a538e2d5 | 3102 | |
2a519311 JB |
3103 | out_free: |
3104 | if (err) { | |
79c97e97 | 3105 | rdev->scan_req = NULL; |
2a519311 JB |
3106 | kfree(request); |
3107 | } | |
2a519311 | 3108 | out: |
79c97e97 | 3109 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3110 | dev_put(dev); |
3b85875a JB |
3111 | out_rtnl: |
3112 | rtnl_unlock(); | |
3113 | ||
2a519311 JB |
3114 | return err; |
3115 | } | |
3116 | ||
3117 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3118 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3119 | struct wireless_dev *wdev, |
3120 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3121 | { |
48ab905d | 3122 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3123 | void *hdr; |
3124 | struct nlattr *bss; | |
48ab905d JB |
3125 | int i; |
3126 | ||
3127 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3128 | |
3129 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3130 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3131 | if (!hdr) | |
3132 | return -1; | |
3133 | ||
f5ea9120 | 3134 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3135 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3136 | |
3137 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3138 | if (!bss) | |
3139 | goto nla_put_failure; | |
3140 | if (!is_zero_ether_addr(res->bssid)) | |
3141 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3142 | if (res->information_elements && res->len_information_elements) | |
3143 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3144 | res->len_information_elements, | |
3145 | res->information_elements); | |
34a6eddb JM |
3146 | if (res->beacon_ies && res->len_beacon_ies && |
3147 | res->beacon_ies != res->information_elements) | |
3148 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3149 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3150 | if (res->tsf) |
3151 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3152 | if (res->beacon_interval) | |
3153 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3154 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3155 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3156 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3157 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3158 | |
77965c97 | 3159 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3160 | case CFG80211_SIGNAL_TYPE_MBM: |
3161 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3162 | break; | |
3163 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3164 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3165 | break; | |
3166 | default: | |
3167 | break; | |
3168 | } | |
3169 | ||
48ab905d JB |
3170 | switch (wdev->iftype) { |
3171 | case NL80211_IFTYPE_STATION: | |
3172 | if (intbss == wdev->current_bss) | |
3173 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3174 | NL80211_BSS_STATUS_ASSOCIATED); | |
3175 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3176 | if (intbss != wdev->auth_bsses[i]) | |
3177 | continue; | |
3178 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3179 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3180 | break; | |
3181 | } | |
3182 | break; | |
3183 | case NL80211_IFTYPE_ADHOC: | |
3184 | if (intbss == wdev->current_bss) | |
3185 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3186 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3187 | break; | |
3188 | default: | |
3189 | break; | |
3190 | } | |
3191 | ||
2a519311 JB |
3192 | nla_nest_end(msg, bss); |
3193 | ||
3194 | return genlmsg_end(msg, hdr); | |
3195 | ||
3196 | nla_put_failure: | |
3197 | genlmsg_cancel(msg, hdr); | |
3198 | return -EMSGSIZE; | |
3199 | } | |
3200 | ||
3201 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3202 | struct netlink_callback *cb) | |
3203 | { | |
48ab905d JB |
3204 | struct cfg80211_registered_device *rdev; |
3205 | struct net_device *dev; | |
2a519311 | 3206 | struct cfg80211_internal_bss *scan; |
48ab905d | 3207 | struct wireless_dev *wdev; |
2a519311 JB |
3208 | int ifidx = cb->args[0]; |
3209 | int start = cb->args[1], idx = 0; | |
3210 | int err; | |
3211 | ||
a043897a HS |
3212 | if (!ifidx) |
3213 | ifidx = nl80211_get_ifidx(cb); | |
3214 | if (ifidx < 0) | |
3215 | return ifidx; | |
3216 | cb->args[0] = ifidx; | |
2a519311 | 3217 | |
463d0183 | 3218 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3219 | if (!dev) |
2a519311 JB |
3220 | return -ENODEV; |
3221 | ||
463d0183 | 3222 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3223 | if (IS_ERR(rdev)) { |
3224 | err = PTR_ERR(rdev); | |
2a519311 JB |
3225 | goto out_put_netdev; |
3226 | } | |
3227 | ||
48ab905d | 3228 | wdev = dev->ieee80211_ptr; |
2a519311 | 3229 | |
48ab905d JB |
3230 | wdev_lock(wdev); |
3231 | spin_lock_bh(&rdev->bss_lock); | |
3232 | cfg80211_bss_expire(rdev); | |
3233 | ||
3234 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3235 | if (++idx <= start) |
3236 | continue; | |
3237 | if (nl80211_send_bss(skb, | |
3238 | NETLINK_CB(cb->skb).pid, | |
3239 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3240 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3241 | idx--; |
3242 | goto out; | |
3243 | } | |
3244 | } | |
3245 | ||
3246 | out: | |
48ab905d JB |
3247 | spin_unlock_bh(&rdev->bss_lock); |
3248 | wdev_unlock(wdev); | |
2a519311 JB |
3249 | |
3250 | cb->args[1] = idx; | |
3251 | err = skb->len; | |
48ab905d | 3252 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3253 | out_put_netdev: |
48ab905d | 3254 | dev_put(dev); |
2a519311 JB |
3255 | |
3256 | return err; | |
3257 | } | |
3258 | ||
61fa713c HS |
3259 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3260 | int flags, struct net_device *dev, | |
3261 | struct survey_info *survey) | |
3262 | { | |
3263 | void *hdr; | |
3264 | struct nlattr *infoattr; | |
3265 | ||
3266 | /* Survey without a channel doesn't make sense */ | |
3267 | if (!survey->channel) | |
3268 | return -EINVAL; | |
3269 | ||
3270 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3271 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3272 | if (!hdr) | |
3273 | return -ENOMEM; | |
3274 | ||
3275 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3276 | ||
3277 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3278 | if (!infoattr) | |
3279 | goto nla_put_failure; | |
3280 | ||
3281 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3282 | survey->channel->center_freq); | |
3283 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3284 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3285 | survey->noise); | |
3286 | ||
3287 | nla_nest_end(msg, infoattr); | |
3288 | ||
3289 | return genlmsg_end(msg, hdr); | |
3290 | ||
3291 | nla_put_failure: | |
3292 | genlmsg_cancel(msg, hdr); | |
3293 | return -EMSGSIZE; | |
3294 | } | |
3295 | ||
3296 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3297 | struct netlink_callback *cb) | |
3298 | { | |
3299 | struct survey_info survey; | |
3300 | struct cfg80211_registered_device *dev; | |
3301 | struct net_device *netdev; | |
3302 | int ifidx = cb->args[0]; | |
3303 | int survey_idx = cb->args[1]; | |
3304 | int res; | |
3305 | ||
3306 | if (!ifidx) | |
3307 | ifidx = nl80211_get_ifidx(cb); | |
3308 | if (ifidx < 0) | |
3309 | return ifidx; | |
3310 | cb->args[0] = ifidx; | |
3311 | ||
3312 | rtnl_lock(); | |
3313 | ||
3314 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3315 | if (!netdev) { | |
3316 | res = -ENODEV; | |
3317 | goto out_rtnl; | |
3318 | } | |
3319 | ||
3320 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3321 | if (IS_ERR(dev)) { | |
3322 | res = PTR_ERR(dev); | |
3323 | goto out_rtnl; | |
3324 | } | |
3325 | ||
3326 | if (!dev->ops->dump_survey) { | |
3327 | res = -EOPNOTSUPP; | |
3328 | goto out_err; | |
3329 | } | |
3330 | ||
3331 | while (1) { | |
3332 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3333 | &survey); | |
3334 | if (res == -ENOENT) | |
3335 | break; | |
3336 | if (res) | |
3337 | goto out_err; | |
3338 | ||
3339 | if (nl80211_send_survey(skb, | |
3340 | NETLINK_CB(cb->skb).pid, | |
3341 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3342 | netdev, | |
3343 | &survey) < 0) | |
3344 | goto out; | |
3345 | survey_idx++; | |
3346 | } | |
3347 | ||
3348 | out: | |
3349 | cb->args[1] = survey_idx; | |
3350 | res = skb->len; | |
3351 | out_err: | |
3352 | cfg80211_unlock_rdev(dev); | |
3353 | out_rtnl: | |
3354 | rtnl_unlock(); | |
3355 | ||
3356 | return res; | |
3357 | } | |
3358 | ||
255e737e JM |
3359 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3360 | { | |
b23aa676 SO |
3361 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3362 | } | |
3363 | ||
3364 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3365 | { | |
3366 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3367 | NL80211_WPA_VERSION_2)); | |
3368 | } | |
3369 | ||
3370 | static bool nl80211_valid_akm_suite(u32 akm) | |
3371 | { | |
3372 | return akm == WLAN_AKM_SUITE_8021X || | |
3373 | akm == WLAN_AKM_SUITE_PSK; | |
3374 | } | |
3375 | ||
3376 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3377 | { | |
3378 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3379 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3380 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3381 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3382 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3383 | } |
3384 | ||
b23aa676 | 3385 | |
636a5d36 JM |
3386 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3387 | { | |
79c97e97 | 3388 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3389 | struct net_device *dev; |
19957bb3 JB |
3390 | struct ieee80211_channel *chan; |
3391 | const u8 *bssid, *ssid, *ie = NULL; | |
3392 | int err, ssid_len, ie_len = 0; | |
3393 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3394 | struct key_parse key; |
636a5d36 | 3395 | |
f4a11bb0 JB |
3396 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3397 | return -EINVAL; | |
3398 | ||
3399 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3400 | return -EINVAL; | |
3401 | ||
1778092e JM |
3402 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3403 | return -EINVAL; | |
3404 | ||
19957bb3 JB |
3405 | if (!info->attrs[NL80211_ATTR_SSID]) |
3406 | return -EINVAL; | |
3407 | ||
3408 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3409 | return -EINVAL; | |
3410 | ||
fffd0934 JB |
3411 | err = nl80211_parse_key(info, &key); |
3412 | if (err) | |
3413 | return err; | |
3414 | ||
3415 | if (key.idx >= 0) { | |
3416 | if (!key.p.key || !key.p.key_len) | |
3417 | return -EINVAL; | |
3418 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3419 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3420 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3421 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3422 | return -EINVAL; | |
3423 | if (key.idx > 4) | |
3424 | return -EINVAL; | |
3425 | } else { | |
3426 | key.p.key_len = 0; | |
3427 | key.p.key = NULL; | |
3428 | } | |
3429 | ||
636a5d36 JM |
3430 | rtnl_lock(); |
3431 | ||
463d0183 | 3432 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3433 | if (err) |
3434 | goto unlock_rtnl; | |
3435 | ||
79c97e97 | 3436 | if (!rdev->ops->auth) { |
636a5d36 JM |
3437 | err = -EOPNOTSUPP; |
3438 | goto out; | |
3439 | } | |
3440 | ||
eec60b03 JM |
3441 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3442 | err = -EOPNOTSUPP; | |
3443 | goto out; | |
3444 | } | |
3445 | ||
35a8efe1 JM |
3446 | if (!netif_running(dev)) { |
3447 | err = -ENETDOWN; | |
3448 | goto out; | |
3449 | } | |
3450 | ||
19957bb3 | 3451 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3452 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3453 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3454 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3455 | err = -EINVAL; | |
3456 | goto out; | |
636a5d36 JM |
3457 | } |
3458 | ||
19957bb3 JB |
3459 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3460 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3461 | |
3462 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3463 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3464 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3465 | } |
3466 | ||
19957bb3 JB |
3467 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3468 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3469 | err = -EINVAL; |
3470 | goto out; | |
636a5d36 JM |
3471 | } |
3472 | ||
79c97e97 | 3473 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 JB |
3474 | ssid, ssid_len, ie, ie_len, |
3475 | key.p.key, key.p.key_len, key.idx); | |
636a5d36 JM |
3476 | |
3477 | out: | |
79c97e97 | 3478 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3479 | dev_put(dev); |
3480 | unlock_rtnl: | |
3481 | rtnl_unlock(); | |
3482 | return err; | |
3483 | } | |
3484 | ||
b23aa676 | 3485 | static int nl80211_crypto_settings(struct genl_info *info, |
3dc27d25 JB |
3486 | struct cfg80211_crypto_settings *settings, |
3487 | int cipher_limit) | |
b23aa676 | 3488 | { |
c0b2bbd8 JB |
3489 | memset(settings, 0, sizeof(*settings)); |
3490 | ||
b23aa676 SO |
3491 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3492 | ||
3493 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
3494 | void *data; | |
3495 | int len, i; | |
3496 | ||
3497 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3498 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3499 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3500 | ||
3501 | if (len % sizeof(u32)) | |
3502 | return -EINVAL; | |
3503 | ||
3dc27d25 | 3504 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3505 | return -EINVAL; |
3506 | ||
3507 | memcpy(settings->ciphers_pairwise, data, len); | |
3508 | ||
3509 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3510 | if (!nl80211_valid_cipher_suite( | |
3511 | settings->ciphers_pairwise[i])) | |
3512 | return -EINVAL; | |
3513 | } | |
3514 | ||
3515 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3516 | settings->cipher_group = | |
3517 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3518 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3519 | return -EINVAL; | |
3520 | } | |
3521 | ||
3522 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3523 | settings->wpa_versions = | |
3524 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3525 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3526 | return -EINVAL; | |
3527 | } | |
3528 | ||
3529 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3530 | void *data; | |
3531 | int len, i; | |
3532 | ||
3533 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3534 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3535 | settings->n_akm_suites = len / sizeof(u32); | |
3536 | ||
3537 | if (len % sizeof(u32)) | |
3538 | return -EINVAL; | |
3539 | ||
3540 | memcpy(settings->akm_suites, data, len); | |
3541 | ||
3542 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3543 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3544 | return -EINVAL; | |
3545 | } | |
3546 | ||
3547 | return 0; | |
3548 | } | |
3549 | ||
636a5d36 JM |
3550 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3551 | { | |
19957bb3 | 3552 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3553 | struct net_device *dev; |
27e310c9 | 3554 | struct wireless_dev *wdev; |
19957bb3 | 3555 | struct cfg80211_crypto_settings crypto; |
59bbb6f7 | 3556 | struct ieee80211_channel *chan, *fixedchan; |
3e5d7649 | 3557 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3558 | int err, ssid_len, ie_len = 0; |
3559 | bool use_mfp = false; | |
636a5d36 | 3560 | |
f4a11bb0 JB |
3561 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3562 | return -EINVAL; | |
3563 | ||
3564 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3565 | !info->attrs[NL80211_ATTR_SSID] || |
3566 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3567 | return -EINVAL; |
3568 | ||
636a5d36 JM |
3569 | rtnl_lock(); |
3570 | ||
463d0183 | 3571 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3572 | if (err) |
3573 | goto unlock_rtnl; | |
3574 | ||
19957bb3 | 3575 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3576 | err = -EOPNOTSUPP; |
3577 | goto out; | |
3578 | } | |
3579 | ||
eec60b03 JM |
3580 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3581 | err = -EOPNOTSUPP; | |
3582 | goto out; | |
3583 | } | |
3584 | ||
35a8efe1 JM |
3585 | if (!netif_running(dev)) { |
3586 | err = -ENETDOWN; | |
3587 | goto out; | |
3588 | } | |
3589 | ||
19957bb3 | 3590 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3591 | |
19957bb3 JB |
3592 | chan = ieee80211_get_channel(&rdev->wiphy, |
3593 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3594 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3595 | err = -EINVAL; | |
3596 | goto out; | |
636a5d36 JM |
3597 | } |
3598 | ||
59bbb6f7 | 3599 | mutex_lock(&rdev->devlist_mtx); |
27e310c9 JM |
3600 | wdev = dev->ieee80211_ptr; |
3601 | fixedchan = rdev_fixed_channel(rdev, wdev); | |
59bbb6f7 JB |
3602 | if (fixedchan && chan != fixedchan) { |
3603 | err = -EBUSY; | |
3604 | mutex_unlock(&rdev->devlist_mtx); | |
3605 | goto out; | |
3606 | } | |
3607 | mutex_unlock(&rdev->devlist_mtx); | |
3608 | ||
19957bb3 JB |
3609 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3610 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3611 | |
3612 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3613 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3614 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3615 | } |
3616 | ||
dc6382ce | 3617 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3618 | enum nl80211_mfp mfp = |
dc6382ce | 3619 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3620 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3621 | use_mfp = true; |
4f5dadce | 3622 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3623 | err = -EINVAL; |
3624 | goto out; | |
3625 | } | |
3626 | } | |
3627 | ||
3e5d7649 JB |
3628 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3629 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3630 | ||
3dc27d25 | 3631 | err = nl80211_crypto_settings(info, &crypto, 1); |
b23aa676 | 3632 | if (!err) |
3e5d7649 JB |
3633 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3634 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3635 | &crypto); |
636a5d36 JM |
3636 | |
3637 | out: | |
4d0c8aea | 3638 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3639 | dev_put(dev); |
3640 | unlock_rtnl: | |
3641 | rtnl_unlock(); | |
3642 | return err; | |
3643 | } | |
3644 | ||
3645 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3646 | { | |
79c97e97 | 3647 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3648 | struct net_device *dev; |
19957bb3 JB |
3649 | const u8 *ie = NULL, *bssid; |
3650 | int err, ie_len = 0; | |
3651 | u16 reason_code; | |
636a5d36 | 3652 | |
f4a11bb0 JB |
3653 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3654 | return -EINVAL; | |
3655 | ||
3656 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3657 | return -EINVAL; | |
3658 | ||
3659 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3660 | return -EINVAL; | |
3661 | ||
636a5d36 JM |
3662 | rtnl_lock(); |
3663 | ||
463d0183 | 3664 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3665 | if (err) |
3666 | goto unlock_rtnl; | |
3667 | ||
79c97e97 | 3668 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3669 | err = -EOPNOTSUPP; |
3670 | goto out; | |
3671 | } | |
3672 | ||
eec60b03 JM |
3673 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3674 | err = -EOPNOTSUPP; | |
3675 | goto out; | |
3676 | } | |
3677 | ||
35a8efe1 JM |
3678 | if (!netif_running(dev)) { |
3679 | err = -ENETDOWN; | |
3680 | goto out; | |
3681 | } | |
3682 | ||
19957bb3 | 3683 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3684 | |
19957bb3 JB |
3685 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3686 | if (reason_code == 0) { | |
f4a11bb0 JB |
3687 | /* Reason Code 0 is reserved */ |
3688 | err = -EINVAL; | |
3689 | goto out; | |
255e737e | 3690 | } |
636a5d36 JM |
3691 | |
3692 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3693 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3694 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3695 | } |
3696 | ||
79c97e97 | 3697 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3698 | |
3699 | out: | |
79c97e97 | 3700 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3701 | dev_put(dev); |
3702 | unlock_rtnl: | |
3703 | rtnl_unlock(); | |
3704 | return err; | |
3705 | } | |
3706 | ||
3707 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3708 | { | |
79c97e97 | 3709 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3710 | struct net_device *dev; |
19957bb3 JB |
3711 | const u8 *ie = NULL, *bssid; |
3712 | int err, ie_len = 0; | |
3713 | u16 reason_code; | |
636a5d36 | 3714 | |
f4a11bb0 JB |
3715 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3716 | return -EINVAL; | |
3717 | ||
3718 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3719 | return -EINVAL; | |
3720 | ||
3721 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3722 | return -EINVAL; | |
3723 | ||
636a5d36 JM |
3724 | rtnl_lock(); |
3725 | ||
463d0183 | 3726 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3727 | if (err) |
3728 | goto unlock_rtnl; | |
3729 | ||
79c97e97 | 3730 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3731 | err = -EOPNOTSUPP; |
3732 | goto out; | |
3733 | } | |
3734 | ||
eec60b03 JM |
3735 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3736 | err = -EOPNOTSUPP; | |
3737 | goto out; | |
3738 | } | |
3739 | ||
35a8efe1 JM |
3740 | if (!netif_running(dev)) { |
3741 | err = -ENETDOWN; | |
3742 | goto out; | |
3743 | } | |
3744 | ||
19957bb3 | 3745 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3746 | |
19957bb3 JB |
3747 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3748 | if (reason_code == 0) { | |
f4a11bb0 JB |
3749 | /* Reason Code 0 is reserved */ |
3750 | err = -EINVAL; | |
3751 | goto out; | |
255e737e | 3752 | } |
636a5d36 JM |
3753 | |
3754 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3755 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3756 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3757 | } |
3758 | ||
79c97e97 | 3759 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3760 | |
3761 | out: | |
79c97e97 | 3762 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3763 | dev_put(dev); |
3764 | unlock_rtnl: | |
3765 | rtnl_unlock(); | |
3766 | return err; | |
3767 | } | |
3768 | ||
04a773ad JB |
3769 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3770 | { | |
79c97e97 | 3771 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3772 | struct net_device *dev; |
3773 | struct cfg80211_ibss_params ibss; | |
3774 | struct wiphy *wiphy; | |
fffd0934 | 3775 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3776 | int err; |
3777 | ||
8e30bc55 JB |
3778 | memset(&ibss, 0, sizeof(ibss)); |
3779 | ||
04a773ad JB |
3780 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3781 | return -EINVAL; | |
3782 | ||
3783 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3784 | !info->attrs[NL80211_ATTR_SSID] || | |
3785 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3786 | return -EINVAL; | |
3787 | ||
8e30bc55 JB |
3788 | ibss.beacon_interval = 100; |
3789 | ||
3790 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3791 | ibss.beacon_interval = | |
3792 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3793 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3794 | return -EINVAL; | |
3795 | } | |
3796 | ||
04a773ad JB |
3797 | rtnl_lock(); |
3798 | ||
463d0183 | 3799 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3800 | if (err) |
3801 | goto unlock_rtnl; | |
3802 | ||
79c97e97 | 3803 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
3804 | err = -EOPNOTSUPP; |
3805 | goto out; | |
3806 | } | |
3807 | ||
3808 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3809 | err = -EOPNOTSUPP; | |
3810 | goto out; | |
3811 | } | |
3812 | ||
3813 | if (!netif_running(dev)) { | |
3814 | err = -ENETDOWN; | |
3815 | goto out; | |
3816 | } | |
3817 | ||
79c97e97 | 3818 | wiphy = &rdev->wiphy; |
04a773ad JB |
3819 | |
3820 | if (info->attrs[NL80211_ATTR_MAC]) | |
3821 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3822 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3823 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3824 | ||
3825 | if (info->attrs[NL80211_ATTR_IE]) { | |
3826 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3827 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3828 | } | |
3829 | ||
3830 | ibss.channel = ieee80211_get_channel(wiphy, | |
3831 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3832 | if (!ibss.channel || | |
3833 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
3834 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3835 | err = -EINVAL; | |
3836 | goto out; | |
3837 | } | |
3838 | ||
3839 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3840 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3841 | ||
3842 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
3843 | connkeys = nl80211_parse_connkeys(rdev, | |
3844 | info->attrs[NL80211_ATTR_KEYS]); | |
3845 | if (IS_ERR(connkeys)) { | |
3846 | err = PTR_ERR(connkeys); | |
3847 | connkeys = NULL; | |
3848 | goto out; | |
3849 | } | |
3850 | } | |
04a773ad | 3851 | |
fffd0934 | 3852 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
3853 | |
3854 | out: | |
79c97e97 | 3855 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3856 | dev_put(dev); |
3857 | unlock_rtnl: | |
fffd0934 JB |
3858 | if (err) |
3859 | kfree(connkeys); | |
04a773ad JB |
3860 | rtnl_unlock(); |
3861 | return err; | |
3862 | } | |
3863 | ||
3864 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3865 | { | |
79c97e97 | 3866 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3867 | struct net_device *dev; |
3868 | int err; | |
3869 | ||
3870 | rtnl_lock(); | |
3871 | ||
463d0183 | 3872 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3873 | if (err) |
3874 | goto unlock_rtnl; | |
3875 | ||
79c97e97 | 3876 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
3877 | err = -EOPNOTSUPP; |
3878 | goto out; | |
3879 | } | |
3880 | ||
3881 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3882 | err = -EOPNOTSUPP; | |
3883 | goto out; | |
3884 | } | |
3885 | ||
3886 | if (!netif_running(dev)) { | |
3887 | err = -ENETDOWN; | |
3888 | goto out; | |
3889 | } | |
3890 | ||
79c97e97 | 3891 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3892 | |
3893 | out: | |
79c97e97 | 3894 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3895 | dev_put(dev); |
3896 | unlock_rtnl: | |
3897 | rtnl_unlock(); | |
3898 | return err; | |
3899 | } | |
3900 | ||
aff89a9b JB |
3901 | #ifdef CONFIG_NL80211_TESTMODE |
3902 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3903 | .name = "testmode", | |
3904 | }; | |
3905 | ||
3906 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3907 | { | |
3908 | struct cfg80211_registered_device *rdev; | |
3909 | int err; | |
3910 | ||
3911 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3912 | return -EINVAL; | |
3913 | ||
3914 | rtnl_lock(); | |
3915 | ||
3916 | rdev = cfg80211_get_dev_from_info(info); | |
3917 | if (IS_ERR(rdev)) { | |
3918 | err = PTR_ERR(rdev); | |
3919 | goto unlock_rtnl; | |
3920 | } | |
3921 | ||
3922 | err = -EOPNOTSUPP; | |
3923 | if (rdev->ops->testmode_cmd) { | |
3924 | rdev->testmode_info = info; | |
3925 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3926 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3927 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3928 | rdev->testmode_info = NULL; | |
3929 | } | |
3930 | ||
4d0c8aea | 3931 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
3932 | |
3933 | unlock_rtnl: | |
3934 | rtnl_unlock(); | |
3935 | return err; | |
3936 | } | |
3937 | ||
3938 | static struct sk_buff * | |
3939 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3940 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3941 | { | |
3942 | struct sk_buff *skb; | |
3943 | void *hdr; | |
3944 | struct nlattr *data; | |
3945 | ||
3946 | skb = nlmsg_new(approxlen + 100, gfp); | |
3947 | if (!skb) | |
3948 | return NULL; | |
3949 | ||
3950 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3951 | if (!hdr) { | |
3952 | kfree_skb(skb); | |
3953 | return NULL; | |
3954 | } | |
3955 | ||
3956 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3957 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3958 | ||
3959 | ((void **)skb->cb)[0] = rdev; | |
3960 | ((void **)skb->cb)[1] = hdr; | |
3961 | ((void **)skb->cb)[2] = data; | |
3962 | ||
3963 | return skb; | |
3964 | ||
3965 | nla_put_failure: | |
3966 | kfree_skb(skb); | |
3967 | return NULL; | |
3968 | } | |
3969 | ||
3970 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3971 | int approxlen) | |
3972 | { | |
3973 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3974 | ||
3975 | if (WARN_ON(!rdev->testmode_info)) | |
3976 | return NULL; | |
3977 | ||
3978 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3979 | rdev->testmode_info->snd_pid, | |
3980 | rdev->testmode_info->snd_seq, | |
3981 | GFP_KERNEL); | |
3982 | } | |
3983 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3984 | ||
3985 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3986 | { | |
3987 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3988 | void *hdr = ((void **)skb->cb)[1]; | |
3989 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3990 | ||
3991 | if (WARN_ON(!rdev->testmode_info)) { | |
3992 | kfree_skb(skb); | |
3993 | return -EINVAL; | |
3994 | } | |
3995 | ||
3996 | nla_nest_end(skb, data); | |
3997 | genlmsg_end(skb, hdr); | |
3998 | return genlmsg_reply(skb, rdev->testmode_info); | |
3999 | } | |
4000 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
4001 | ||
4002 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
4003 | int approxlen, gfp_t gfp) | |
4004 | { | |
4005 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4006 | ||
4007 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
4008 | } | |
4009 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
4010 | ||
4011 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
4012 | { | |
4013 | void *hdr = ((void **)skb->cb)[1]; | |
4014 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4015 | ||
4016 | nla_nest_end(skb, data); | |
4017 | genlmsg_end(skb, hdr); | |
4018 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
4019 | } | |
4020 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
4021 | #endif | |
4022 | ||
b23aa676 SO |
4023 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
4024 | { | |
79c97e97 | 4025 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4026 | struct net_device *dev; |
4027 | struct cfg80211_connect_params connect; | |
4028 | struct wiphy *wiphy; | |
fffd0934 | 4029 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
4030 | int err; |
4031 | ||
4032 | memset(&connect, 0, sizeof(connect)); | |
4033 | ||
4034 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4035 | return -EINVAL; | |
4036 | ||
4037 | if (!info->attrs[NL80211_ATTR_SSID] || | |
4038 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4039 | return -EINVAL; | |
4040 | ||
4041 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
4042 | connect.auth_type = | |
4043 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
4044 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
4045 | return -EINVAL; | |
4046 | } else | |
4047 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
4048 | ||
4049 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
4050 | ||
3dc27d25 JB |
4051 | err = nl80211_crypto_settings(info, &connect.crypto, |
4052 | NL80211_MAX_NR_CIPHER_SUITES); | |
b23aa676 SO |
4053 | if (err) |
4054 | return err; | |
4055 | rtnl_lock(); | |
4056 | ||
463d0183 | 4057 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4058 | if (err) |
4059 | goto unlock_rtnl; | |
4060 | ||
4061 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4062 | err = -EOPNOTSUPP; | |
4063 | goto out; | |
4064 | } | |
4065 | ||
4066 | if (!netif_running(dev)) { | |
4067 | err = -ENETDOWN; | |
4068 | goto out; | |
4069 | } | |
4070 | ||
79c97e97 | 4071 | wiphy = &rdev->wiphy; |
b23aa676 | 4072 | |
b23aa676 SO |
4073 | if (info->attrs[NL80211_ATTR_MAC]) |
4074 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4075 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4076 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4077 | ||
4078 | if (info->attrs[NL80211_ATTR_IE]) { | |
4079 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4080 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4081 | } | |
4082 | ||
4083 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
4084 | connect.channel = | |
4085 | ieee80211_get_channel(wiphy, | |
4086 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4087 | if (!connect.channel || | |
4088 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4089 | err = -EINVAL; | |
4090 | goto out; | |
4091 | } | |
4092 | } | |
4093 | ||
fffd0934 JB |
4094 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4095 | connkeys = nl80211_parse_connkeys(rdev, | |
4096 | info->attrs[NL80211_ATTR_KEYS]); | |
4097 | if (IS_ERR(connkeys)) { | |
4098 | err = PTR_ERR(connkeys); | |
4099 | connkeys = NULL; | |
4100 | goto out; | |
4101 | } | |
4102 | } | |
4103 | ||
4104 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
4105 | |
4106 | out: | |
79c97e97 | 4107 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4108 | dev_put(dev); |
4109 | unlock_rtnl: | |
fffd0934 JB |
4110 | if (err) |
4111 | kfree(connkeys); | |
b23aa676 SO |
4112 | rtnl_unlock(); |
4113 | return err; | |
4114 | } | |
4115 | ||
4116 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4117 | { | |
79c97e97 | 4118 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4119 | struct net_device *dev; |
4120 | int err; | |
4121 | u16 reason; | |
4122 | ||
4123 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4124 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4125 | else | |
4126 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4127 | ||
4128 | if (reason == 0) | |
4129 | return -EINVAL; | |
4130 | ||
4131 | rtnl_lock(); | |
4132 | ||
463d0183 | 4133 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4134 | if (err) |
4135 | goto unlock_rtnl; | |
4136 | ||
4137 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4138 | err = -EOPNOTSUPP; | |
4139 | goto out; | |
4140 | } | |
4141 | ||
4142 | if (!netif_running(dev)) { | |
4143 | err = -ENETDOWN; | |
4144 | goto out; | |
4145 | } | |
4146 | ||
79c97e97 | 4147 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4148 | |
4149 | out: | |
79c97e97 | 4150 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4151 | dev_put(dev); |
4152 | unlock_rtnl: | |
4153 | rtnl_unlock(); | |
4154 | return err; | |
4155 | } | |
4156 | ||
463d0183 JB |
4157 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4158 | { | |
4159 | struct cfg80211_registered_device *rdev; | |
4160 | struct net *net; | |
4161 | int err; | |
4162 | u32 pid; | |
4163 | ||
4164 | if (!info->attrs[NL80211_ATTR_PID]) | |
4165 | return -EINVAL; | |
4166 | ||
4167 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4168 | ||
4169 | rtnl_lock(); | |
4170 | ||
4171 | rdev = cfg80211_get_dev_from_info(info); | |
4172 | if (IS_ERR(rdev)) { | |
4173 | err = PTR_ERR(rdev); | |
8a8e05e5 | 4174 | goto out_rtnl; |
463d0183 JB |
4175 | } |
4176 | ||
4177 | net = get_net_ns_by_pid(pid); | |
4178 | if (IS_ERR(net)) { | |
4179 | err = PTR_ERR(net); | |
4180 | goto out; | |
4181 | } | |
4182 | ||
4183 | err = 0; | |
4184 | ||
4185 | /* check if anything to do */ | |
4186 | if (net_eq(wiphy_net(&rdev->wiphy), net)) | |
4187 | goto out_put_net; | |
4188 | ||
4189 | err = cfg80211_switch_netns(rdev, net); | |
4190 | out_put_net: | |
4191 | put_net(net); | |
4192 | out: | |
4193 | cfg80211_unlock_rdev(rdev); | |
8a8e05e5 | 4194 | out_rtnl: |
463d0183 JB |
4195 | rtnl_unlock(); |
4196 | return err; | |
4197 | } | |
4198 | ||
67fbb16b SO |
4199 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4200 | { | |
4201 | struct cfg80211_registered_device *rdev; | |
4202 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
4203 | struct cfg80211_pmksa *pmksa) = NULL; | |
4204 | int err; | |
4205 | struct net_device *dev; | |
4206 | struct cfg80211_pmksa pmksa; | |
4207 | ||
4208 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4209 | ||
4210 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4211 | return -EINVAL; | |
4212 | ||
4213 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4214 | return -EINVAL; | |
4215 | ||
4216 | rtnl_lock(); | |
4217 | ||
4218 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4219 | if (err) | |
4220 | goto out_rtnl; | |
4221 | ||
4222 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
4223 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4224 | ||
4225 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4226 | err = -EOPNOTSUPP; | |
4227 | goto out; | |
4228 | } | |
4229 | ||
4230 | switch (info->genlhdr->cmd) { | |
4231 | case NL80211_CMD_SET_PMKSA: | |
4232 | rdev_ops = rdev->ops->set_pmksa; | |
4233 | break; | |
4234 | case NL80211_CMD_DEL_PMKSA: | |
4235 | rdev_ops = rdev->ops->del_pmksa; | |
4236 | break; | |
4237 | default: | |
4238 | WARN_ON(1); | |
4239 | break; | |
4240 | } | |
4241 | ||
4242 | if (!rdev_ops) { | |
4243 | err = -EOPNOTSUPP; | |
4244 | goto out; | |
4245 | } | |
4246 | ||
4247 | err = rdev_ops(&rdev->wiphy, dev, &pmksa); | |
4248 | ||
4249 | out: | |
4250 | cfg80211_unlock_rdev(rdev); | |
4251 | dev_put(dev); | |
4252 | out_rtnl: | |
4253 | rtnl_unlock(); | |
4254 | ||
4255 | return err; | |
4256 | } | |
4257 | ||
4258 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4259 | { | |
4260 | struct cfg80211_registered_device *rdev; | |
4261 | int err; | |
4262 | struct net_device *dev; | |
4263 | ||
4264 | rtnl_lock(); | |
4265 | ||
4266 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4267 | if (err) | |
4268 | goto out_rtnl; | |
4269 | ||
4270 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4271 | err = -EOPNOTSUPP; | |
4272 | goto out; | |
4273 | } | |
4274 | ||
4275 | if (!rdev->ops->flush_pmksa) { | |
4276 | err = -EOPNOTSUPP; | |
4277 | goto out; | |
4278 | } | |
4279 | ||
4280 | err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); | |
4281 | ||
4282 | out: | |
4283 | cfg80211_unlock_rdev(rdev); | |
4284 | dev_put(dev); | |
4285 | out_rtnl: | |
4286 | rtnl_unlock(); | |
4287 | ||
4288 | return err; | |
4289 | ||
4290 | } | |
4291 | ||
9588bbd5 JM |
4292 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4293 | struct genl_info *info) | |
4294 | { | |
4295 | struct cfg80211_registered_device *rdev; | |
4296 | struct net_device *dev; | |
4297 | struct ieee80211_channel *chan; | |
4298 | struct sk_buff *msg; | |
4299 | void *hdr; | |
4300 | u64 cookie; | |
4301 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4302 | u32 freq, duration; | |
4303 | int err; | |
4304 | ||
4305 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4306 | !info->attrs[NL80211_ATTR_DURATION]) | |
4307 | return -EINVAL; | |
4308 | ||
4309 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4310 | ||
4311 | /* | |
4312 | * We should be on that channel for at least one jiffie, | |
4313 | * and more than 5 seconds seems excessive. | |
4314 | */ | |
4315 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4316 | return -EINVAL; | |
4317 | ||
4318 | rtnl_lock(); | |
4319 | ||
4320 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4321 | if (err) | |
4322 | goto unlock_rtnl; | |
4323 | ||
4324 | if (!rdev->ops->remain_on_channel) { | |
4325 | err = -EOPNOTSUPP; | |
4326 | goto out; | |
4327 | } | |
4328 | ||
4329 | if (!netif_running(dev)) { | |
4330 | err = -ENETDOWN; | |
4331 | goto out; | |
4332 | } | |
4333 | ||
4334 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4335 | channel_type = nla_get_u32( | |
4336 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4337 | if (channel_type != NL80211_CHAN_NO_HT && | |
4338 | channel_type != NL80211_CHAN_HT20 && | |
4339 | channel_type != NL80211_CHAN_HT40PLUS && | |
4340 | channel_type != NL80211_CHAN_HT40MINUS) | |
4341 | err = -EINVAL; | |
4342 | goto out; | |
4343 | } | |
4344 | ||
4345 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4346 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4347 | if (chan == NULL) { | |
4348 | err = -EINVAL; | |
4349 | goto out; | |
4350 | } | |
4351 | ||
4352 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4353 | if (!msg) { | |
4354 | err = -ENOMEM; | |
4355 | goto out; | |
4356 | } | |
4357 | ||
4358 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4359 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4360 | ||
4361 | if (IS_ERR(hdr)) { | |
4362 | err = PTR_ERR(hdr); | |
4363 | goto free_msg; | |
4364 | } | |
4365 | ||
4366 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4367 | channel_type, duration, &cookie); | |
4368 | ||
4369 | if (err) | |
4370 | goto free_msg; | |
4371 | ||
4372 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4373 | ||
4374 | genlmsg_end(msg, hdr); | |
4375 | err = genlmsg_reply(msg, info); | |
4376 | goto out; | |
4377 | ||
4378 | nla_put_failure: | |
4379 | err = -ENOBUFS; | |
4380 | free_msg: | |
4381 | nlmsg_free(msg); | |
4382 | out: | |
4383 | cfg80211_unlock_rdev(rdev); | |
4384 | dev_put(dev); | |
4385 | unlock_rtnl: | |
4386 | rtnl_unlock(); | |
4387 | return err; | |
4388 | } | |
4389 | ||
4390 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4391 | struct genl_info *info) | |
4392 | { | |
4393 | struct cfg80211_registered_device *rdev; | |
4394 | struct net_device *dev; | |
4395 | u64 cookie; | |
4396 | int err; | |
4397 | ||
4398 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4399 | return -EINVAL; | |
4400 | ||
4401 | rtnl_lock(); | |
4402 | ||
4403 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4404 | if (err) | |
4405 | goto unlock_rtnl; | |
4406 | ||
4407 | if (!rdev->ops->cancel_remain_on_channel) { | |
4408 | err = -EOPNOTSUPP; | |
4409 | goto out; | |
4410 | } | |
4411 | ||
4412 | if (!netif_running(dev)) { | |
4413 | err = -ENETDOWN; | |
4414 | goto out; | |
4415 | } | |
4416 | ||
4417 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4418 | ||
4419 | err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); | |
4420 | ||
4421 | out: | |
4422 | cfg80211_unlock_rdev(rdev); | |
4423 | dev_put(dev); | |
4424 | unlock_rtnl: | |
4425 | rtnl_unlock(); | |
4426 | return err; | |
4427 | } | |
4428 | ||
13ae75b1 JM |
4429 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4430 | u8 *rates, u8 rates_len) | |
4431 | { | |
4432 | u8 i; | |
4433 | u32 mask = 0; | |
4434 | ||
4435 | for (i = 0; i < rates_len; i++) { | |
4436 | int rate = (rates[i] & 0x7f) * 5; | |
4437 | int ridx; | |
4438 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4439 | struct ieee80211_rate *srate = | |
4440 | &sband->bitrates[ridx]; | |
4441 | if (rate == srate->bitrate) { | |
4442 | mask |= 1 << ridx; | |
4443 | break; | |
4444 | } | |
4445 | } | |
4446 | if (ridx == sband->n_bitrates) | |
4447 | return 0; /* rate not found */ | |
4448 | } | |
4449 | ||
4450 | return mask; | |
4451 | } | |
4452 | ||
b54452b0 | 4453 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4454 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4455 | .len = NL80211_MAX_SUPP_RATES }, | |
4456 | }; | |
4457 | ||
4458 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4459 | struct genl_info *info) | |
4460 | { | |
4461 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4462 | struct cfg80211_registered_device *rdev; | |
4463 | struct cfg80211_bitrate_mask mask; | |
4464 | int err, rem, i; | |
4465 | struct net_device *dev; | |
4466 | struct nlattr *tx_rates; | |
4467 | struct ieee80211_supported_band *sband; | |
4468 | ||
4469 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4470 | return -EINVAL; | |
4471 | ||
4472 | rtnl_lock(); | |
4473 | ||
4474 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4475 | if (err) | |
4476 | goto unlock_rtnl; | |
4477 | ||
4478 | if (!rdev->ops->set_bitrate_mask) { | |
4479 | err = -EOPNOTSUPP; | |
4480 | goto unlock; | |
4481 | } | |
4482 | ||
4483 | memset(&mask, 0, sizeof(mask)); | |
4484 | /* Default to all rates enabled */ | |
4485 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4486 | sband = rdev->wiphy.bands[i]; | |
4487 | mask.control[i].legacy = | |
4488 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4489 | } | |
4490 | ||
4491 | /* | |
4492 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4493 | * directly to the enum ieee80211_band values used in cfg80211. | |
4494 | */ | |
4495 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4496 | { | |
4497 | enum ieee80211_band band = nla_type(tx_rates); | |
4498 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
4499 | err = -EINVAL; | |
4500 | goto unlock; | |
4501 | } | |
4502 | sband = rdev->wiphy.bands[band]; | |
4503 | if (sband == NULL) { | |
4504 | err = -EINVAL; | |
4505 | goto unlock; | |
4506 | } | |
4507 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
4508 | nla_len(tx_rates), nl80211_txattr_policy); | |
4509 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4510 | mask.control[band].legacy = rateset_to_mask( | |
4511 | sband, | |
4512 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4513 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4514 | if (mask.control[band].legacy == 0) { | |
4515 | err = -EINVAL; | |
4516 | goto unlock; | |
4517 | } | |
4518 | } | |
4519 | } | |
4520 | ||
4521 | err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); | |
4522 | ||
4523 | unlock: | |
4524 | dev_put(dev); | |
4525 | cfg80211_unlock_rdev(rdev); | |
4526 | unlock_rtnl: | |
4527 | rtnl_unlock(); | |
4528 | return err; | |
4529 | } | |
4530 | ||
026331c4 JM |
4531 | static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info) |
4532 | { | |
4533 | struct cfg80211_registered_device *rdev; | |
4534 | struct net_device *dev; | |
4535 | int err; | |
4536 | ||
4537 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4538 | return -EINVAL; | |
4539 | ||
4540 | if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1) | |
4541 | return -EINVAL; | |
4542 | ||
4543 | rtnl_lock(); | |
4544 | ||
4545 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4546 | if (err) | |
4547 | goto unlock_rtnl; | |
4548 | ||
4549 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4550 | err = -EOPNOTSUPP; | |
4551 | goto out; | |
4552 | } | |
4553 | ||
4554 | /* not much point in registering if we can't reply */ | |
4555 | if (!rdev->ops->action) { | |
4556 | err = -EOPNOTSUPP; | |
4557 | goto out; | |
4558 | } | |
4559 | ||
4560 | err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid, | |
4561 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), | |
4562 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
4563 | out: | |
4564 | cfg80211_unlock_rdev(rdev); | |
4565 | dev_put(dev); | |
4566 | unlock_rtnl: | |
4567 | rtnl_unlock(); | |
4568 | return err; | |
4569 | } | |
4570 | ||
4571 | static int nl80211_action(struct sk_buff *skb, struct genl_info *info) | |
4572 | { | |
4573 | struct cfg80211_registered_device *rdev; | |
4574 | struct net_device *dev; | |
4575 | struct ieee80211_channel *chan; | |
4576 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4577 | u32 freq; | |
4578 | int err; | |
4579 | void *hdr; | |
4580 | u64 cookie; | |
4581 | struct sk_buff *msg; | |
4582 | ||
4583 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4584 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4585 | return -EINVAL; | |
4586 | ||
4587 | rtnl_lock(); | |
4588 | ||
4589 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4590 | if (err) | |
4591 | goto unlock_rtnl; | |
4592 | ||
4593 | if (!rdev->ops->action) { | |
4594 | err = -EOPNOTSUPP; | |
4595 | goto out; | |
4596 | } | |
4597 | ||
4598 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4599 | err = -EOPNOTSUPP; | |
4600 | goto out; | |
4601 | } | |
4602 | ||
4603 | if (!netif_running(dev)) { | |
4604 | err = -ENETDOWN; | |
4605 | goto out; | |
4606 | } | |
4607 | ||
4608 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4609 | channel_type = nla_get_u32( | |
4610 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4611 | if (channel_type != NL80211_CHAN_NO_HT && | |
4612 | channel_type != NL80211_CHAN_HT20 && | |
4613 | channel_type != NL80211_CHAN_HT40PLUS && | |
4614 | channel_type != NL80211_CHAN_HT40MINUS) | |
4615 | err = -EINVAL; | |
4616 | goto out; | |
4617 | } | |
4618 | ||
4619 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4620 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4621 | if (chan == NULL) { | |
4622 | err = -EINVAL; | |
4623 | goto out; | |
4624 | } | |
4625 | ||
4626 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4627 | if (!msg) { | |
4628 | err = -ENOMEM; | |
4629 | goto out; | |
4630 | } | |
4631 | ||
4632 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4633 | NL80211_CMD_ACTION); | |
4634 | ||
4635 | if (IS_ERR(hdr)) { | |
4636 | err = PTR_ERR(hdr); | |
4637 | goto free_msg; | |
4638 | } | |
4639 | err = cfg80211_mlme_action(rdev, dev, chan, channel_type, | |
4640 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4641 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4642 | &cookie); | |
4643 | if (err) | |
4644 | goto free_msg; | |
4645 | ||
4646 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4647 | ||
4648 | genlmsg_end(msg, hdr); | |
4649 | err = genlmsg_reply(msg, info); | |
4650 | goto out; | |
4651 | ||
4652 | nla_put_failure: | |
4653 | err = -ENOBUFS; | |
4654 | free_msg: | |
4655 | nlmsg_free(msg); | |
4656 | out: | |
4657 | cfg80211_unlock_rdev(rdev); | |
4658 | dev_put(dev); | |
4659 | unlock_rtnl: | |
4660 | rtnl_unlock(); | |
4661 | return err; | |
4662 | } | |
4663 | ||
ffb9eb3d KV |
4664 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4665 | { | |
4666 | struct cfg80211_registered_device *rdev; | |
4667 | struct wireless_dev *wdev; | |
4668 | struct net_device *dev; | |
4669 | u8 ps_state; | |
4670 | bool state; | |
4671 | int err; | |
4672 | ||
4673 | if (!info->attrs[NL80211_ATTR_PS_STATE]) { | |
4674 | err = -EINVAL; | |
4675 | goto out; | |
4676 | } | |
4677 | ||
4678 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4679 | ||
4680 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) { | |
4681 | err = -EINVAL; | |
4682 | goto out; | |
4683 | } | |
4684 | ||
4685 | rtnl_lock(); | |
4686 | ||
4687 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4688 | if (err) | |
4689 | goto unlock_rdev; | |
4690 | ||
4691 | wdev = dev->ieee80211_ptr; | |
4692 | ||
4693 | if (!rdev->ops->set_power_mgmt) { | |
4694 | err = -EOPNOTSUPP; | |
4695 | goto unlock_rdev; | |
4696 | } | |
4697 | ||
4698 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4699 | ||
4700 | if (state == wdev->ps) | |
4701 | goto unlock_rdev; | |
4702 | ||
4703 | wdev->ps = state; | |
4704 | ||
4705 | if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps, | |
4706 | wdev->ps_timeout)) | |
4707 | /* assume this means it's off */ | |
4708 | wdev->ps = false; | |
4709 | ||
4710 | unlock_rdev: | |
4711 | cfg80211_unlock_rdev(rdev); | |
4712 | dev_put(dev); | |
4713 | rtnl_unlock(); | |
4714 | ||
4715 | out: | |
4716 | return err; | |
4717 | } | |
4718 | ||
4719 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4720 | { | |
4721 | struct cfg80211_registered_device *rdev; | |
4722 | enum nl80211_ps_state ps_state; | |
4723 | struct wireless_dev *wdev; | |
4724 | struct net_device *dev; | |
4725 | struct sk_buff *msg; | |
4726 | void *hdr; | |
4727 | int err; | |
4728 | ||
4729 | rtnl_lock(); | |
4730 | ||
4731 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4732 | if (err) | |
4733 | goto unlock_rtnl; | |
4734 | ||
4735 | wdev = dev->ieee80211_ptr; | |
4736 | ||
4737 | if (!rdev->ops->set_power_mgmt) { | |
4738 | err = -EOPNOTSUPP; | |
4739 | goto out; | |
4740 | } | |
4741 | ||
4742 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4743 | if (!msg) { | |
4744 | err = -ENOMEM; | |
4745 | goto out; | |
4746 | } | |
4747 | ||
4748 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4749 | NL80211_CMD_GET_POWER_SAVE); | |
4750 | if (!hdr) { | |
4751 | err = -ENOMEM; | |
4752 | goto free_msg; | |
4753 | } | |
4754 | ||
4755 | if (wdev->ps) | |
4756 | ps_state = NL80211_PS_ENABLED; | |
4757 | else | |
4758 | ps_state = NL80211_PS_DISABLED; | |
4759 | ||
4760 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4761 | ||
4762 | genlmsg_end(msg, hdr); | |
4763 | err = genlmsg_reply(msg, info); | |
4764 | goto out; | |
4765 | ||
4766 | nla_put_failure: | |
4767 | err = -ENOBUFS; | |
4768 | ||
4769 | free_msg: | |
4770 | nlmsg_free(msg); | |
4771 | ||
4772 | out: | |
4773 | cfg80211_unlock_rdev(rdev); | |
4774 | dev_put(dev); | |
4775 | ||
4776 | unlock_rtnl: | |
4777 | rtnl_unlock(); | |
4778 | ||
4779 | return err; | |
4780 | } | |
4781 | ||
55682965 JB |
4782 | static struct genl_ops nl80211_ops[] = { |
4783 | { | |
4784 | .cmd = NL80211_CMD_GET_WIPHY, | |
4785 | .doit = nl80211_get_wiphy, | |
4786 | .dumpit = nl80211_dump_wiphy, | |
4787 | .policy = nl80211_policy, | |
4788 | /* can be retrieved by unprivileged users */ | |
4789 | }, | |
4790 | { | |
4791 | .cmd = NL80211_CMD_SET_WIPHY, | |
4792 | .doit = nl80211_set_wiphy, | |
4793 | .policy = nl80211_policy, | |
4794 | .flags = GENL_ADMIN_PERM, | |
4795 | }, | |
4796 | { | |
4797 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4798 | .doit = nl80211_get_interface, | |
4799 | .dumpit = nl80211_dump_interface, | |
4800 | .policy = nl80211_policy, | |
4801 | /* can be retrieved by unprivileged users */ | |
4802 | }, | |
4803 | { | |
4804 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4805 | .doit = nl80211_set_interface, | |
4806 | .policy = nl80211_policy, | |
4807 | .flags = GENL_ADMIN_PERM, | |
4808 | }, | |
4809 | { | |
4810 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4811 | .doit = nl80211_new_interface, | |
4812 | .policy = nl80211_policy, | |
4813 | .flags = GENL_ADMIN_PERM, | |
4814 | }, | |
4815 | { | |
4816 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4817 | .doit = nl80211_del_interface, | |
4818 | .policy = nl80211_policy, | |
41ade00f JB |
4819 | .flags = GENL_ADMIN_PERM, |
4820 | }, | |
4821 | { | |
4822 | .cmd = NL80211_CMD_GET_KEY, | |
4823 | .doit = nl80211_get_key, | |
4824 | .policy = nl80211_policy, | |
4825 | .flags = GENL_ADMIN_PERM, | |
4826 | }, | |
4827 | { | |
4828 | .cmd = NL80211_CMD_SET_KEY, | |
4829 | .doit = nl80211_set_key, | |
4830 | .policy = nl80211_policy, | |
4831 | .flags = GENL_ADMIN_PERM, | |
4832 | }, | |
4833 | { | |
4834 | .cmd = NL80211_CMD_NEW_KEY, | |
4835 | .doit = nl80211_new_key, | |
4836 | .policy = nl80211_policy, | |
4837 | .flags = GENL_ADMIN_PERM, | |
4838 | }, | |
4839 | { | |
4840 | .cmd = NL80211_CMD_DEL_KEY, | |
4841 | .doit = nl80211_del_key, | |
4842 | .policy = nl80211_policy, | |
55682965 JB |
4843 | .flags = GENL_ADMIN_PERM, |
4844 | }, | |
ed1b6cc7 JB |
4845 | { |
4846 | .cmd = NL80211_CMD_SET_BEACON, | |
4847 | .policy = nl80211_policy, | |
4848 | .flags = GENL_ADMIN_PERM, | |
4849 | .doit = nl80211_addset_beacon, | |
4850 | }, | |
4851 | { | |
4852 | .cmd = NL80211_CMD_NEW_BEACON, | |
4853 | .policy = nl80211_policy, | |
4854 | .flags = GENL_ADMIN_PERM, | |
4855 | .doit = nl80211_addset_beacon, | |
4856 | }, | |
4857 | { | |
4858 | .cmd = NL80211_CMD_DEL_BEACON, | |
4859 | .policy = nl80211_policy, | |
4860 | .flags = GENL_ADMIN_PERM, | |
4861 | .doit = nl80211_del_beacon, | |
4862 | }, | |
5727ef1b JB |
4863 | { |
4864 | .cmd = NL80211_CMD_GET_STATION, | |
4865 | .doit = nl80211_get_station, | |
2ec600d6 | 4866 | .dumpit = nl80211_dump_station, |
5727ef1b | 4867 | .policy = nl80211_policy, |
5727ef1b JB |
4868 | }, |
4869 | { | |
4870 | .cmd = NL80211_CMD_SET_STATION, | |
4871 | .doit = nl80211_set_station, | |
4872 | .policy = nl80211_policy, | |
4873 | .flags = GENL_ADMIN_PERM, | |
4874 | }, | |
4875 | { | |
4876 | .cmd = NL80211_CMD_NEW_STATION, | |
4877 | .doit = nl80211_new_station, | |
4878 | .policy = nl80211_policy, | |
4879 | .flags = GENL_ADMIN_PERM, | |
4880 | }, | |
4881 | { | |
4882 | .cmd = NL80211_CMD_DEL_STATION, | |
4883 | .doit = nl80211_del_station, | |
4884 | .policy = nl80211_policy, | |
2ec600d6 LCC |
4885 | .flags = GENL_ADMIN_PERM, |
4886 | }, | |
4887 | { | |
4888 | .cmd = NL80211_CMD_GET_MPATH, | |
4889 | .doit = nl80211_get_mpath, | |
4890 | .dumpit = nl80211_dump_mpath, | |
4891 | .policy = nl80211_policy, | |
4892 | .flags = GENL_ADMIN_PERM, | |
4893 | }, | |
4894 | { | |
4895 | .cmd = NL80211_CMD_SET_MPATH, | |
4896 | .doit = nl80211_set_mpath, | |
4897 | .policy = nl80211_policy, | |
4898 | .flags = GENL_ADMIN_PERM, | |
4899 | }, | |
4900 | { | |
4901 | .cmd = NL80211_CMD_NEW_MPATH, | |
4902 | .doit = nl80211_new_mpath, | |
4903 | .policy = nl80211_policy, | |
4904 | .flags = GENL_ADMIN_PERM, | |
4905 | }, | |
4906 | { | |
4907 | .cmd = NL80211_CMD_DEL_MPATH, | |
4908 | .doit = nl80211_del_mpath, | |
4909 | .policy = nl80211_policy, | |
9f1ba906 JM |
4910 | .flags = GENL_ADMIN_PERM, |
4911 | }, | |
4912 | { | |
4913 | .cmd = NL80211_CMD_SET_BSS, | |
4914 | .doit = nl80211_set_bss, | |
4915 | .policy = nl80211_policy, | |
b2e1b302 LR |
4916 | .flags = GENL_ADMIN_PERM, |
4917 | }, | |
f130347c LR |
4918 | { |
4919 | .cmd = NL80211_CMD_GET_REG, | |
4920 | .doit = nl80211_get_reg, | |
4921 | .policy = nl80211_policy, | |
4922 | /* can be retrieved by unprivileged users */ | |
4923 | }, | |
b2e1b302 LR |
4924 | { |
4925 | .cmd = NL80211_CMD_SET_REG, | |
4926 | .doit = nl80211_set_reg, | |
4927 | .policy = nl80211_policy, | |
4928 | .flags = GENL_ADMIN_PERM, | |
4929 | }, | |
4930 | { | |
4931 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4932 | .doit = nl80211_req_set_reg, | |
4933 | .policy = nl80211_policy, | |
93da9cc1 | 4934 | .flags = GENL_ADMIN_PERM, |
4935 | }, | |
4936 | { | |
4937 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4938 | .doit = nl80211_get_mesh_params, | |
4939 | .policy = nl80211_policy, | |
4940 | /* can be retrieved by unprivileged users */ | |
4941 | }, | |
4942 | { | |
4943 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4944 | .doit = nl80211_set_mesh_params, | |
4945 | .policy = nl80211_policy, | |
9aed3cc1 JM |
4946 | .flags = GENL_ADMIN_PERM, |
4947 | }, | |
2a519311 JB |
4948 | { |
4949 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4950 | .doit = nl80211_trigger_scan, | |
4951 | .policy = nl80211_policy, | |
4952 | .flags = GENL_ADMIN_PERM, | |
4953 | }, | |
4954 | { | |
4955 | .cmd = NL80211_CMD_GET_SCAN, | |
4956 | .policy = nl80211_policy, | |
4957 | .dumpit = nl80211_dump_scan, | |
4958 | }, | |
636a5d36 JM |
4959 | { |
4960 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4961 | .doit = nl80211_authenticate, | |
4962 | .policy = nl80211_policy, | |
4963 | .flags = GENL_ADMIN_PERM, | |
4964 | }, | |
4965 | { | |
4966 | .cmd = NL80211_CMD_ASSOCIATE, | |
4967 | .doit = nl80211_associate, | |
4968 | .policy = nl80211_policy, | |
4969 | .flags = GENL_ADMIN_PERM, | |
4970 | }, | |
4971 | { | |
4972 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4973 | .doit = nl80211_deauthenticate, | |
4974 | .policy = nl80211_policy, | |
4975 | .flags = GENL_ADMIN_PERM, | |
4976 | }, | |
4977 | { | |
4978 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4979 | .doit = nl80211_disassociate, | |
4980 | .policy = nl80211_policy, | |
4981 | .flags = GENL_ADMIN_PERM, | |
4982 | }, | |
04a773ad JB |
4983 | { |
4984 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4985 | .doit = nl80211_join_ibss, | |
4986 | .policy = nl80211_policy, | |
4987 | .flags = GENL_ADMIN_PERM, | |
4988 | }, | |
4989 | { | |
4990 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4991 | .doit = nl80211_leave_ibss, | |
4992 | .policy = nl80211_policy, | |
4993 | .flags = GENL_ADMIN_PERM, | |
4994 | }, | |
aff89a9b JB |
4995 | #ifdef CONFIG_NL80211_TESTMODE |
4996 | { | |
4997 | .cmd = NL80211_CMD_TESTMODE, | |
4998 | .doit = nl80211_testmode_do, | |
4999 | .policy = nl80211_policy, | |
5000 | .flags = GENL_ADMIN_PERM, | |
5001 | }, | |
5002 | #endif | |
b23aa676 SO |
5003 | { |
5004 | .cmd = NL80211_CMD_CONNECT, | |
5005 | .doit = nl80211_connect, | |
5006 | .policy = nl80211_policy, | |
5007 | .flags = GENL_ADMIN_PERM, | |
5008 | }, | |
5009 | { | |
5010 | .cmd = NL80211_CMD_DISCONNECT, | |
5011 | .doit = nl80211_disconnect, | |
5012 | .policy = nl80211_policy, | |
5013 | .flags = GENL_ADMIN_PERM, | |
5014 | }, | |
463d0183 JB |
5015 | { |
5016 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
5017 | .doit = nl80211_wiphy_netns, | |
5018 | .policy = nl80211_policy, | |
5019 | .flags = GENL_ADMIN_PERM, | |
5020 | }, | |
61fa713c HS |
5021 | { |
5022 | .cmd = NL80211_CMD_GET_SURVEY, | |
5023 | .policy = nl80211_policy, | |
5024 | .dumpit = nl80211_dump_survey, | |
5025 | }, | |
67fbb16b SO |
5026 | { |
5027 | .cmd = NL80211_CMD_SET_PMKSA, | |
5028 | .doit = nl80211_setdel_pmksa, | |
5029 | .policy = nl80211_policy, | |
5030 | .flags = GENL_ADMIN_PERM, | |
5031 | }, | |
5032 | { | |
5033 | .cmd = NL80211_CMD_DEL_PMKSA, | |
5034 | .doit = nl80211_setdel_pmksa, | |
5035 | .policy = nl80211_policy, | |
5036 | .flags = GENL_ADMIN_PERM, | |
5037 | }, | |
5038 | { | |
5039 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
5040 | .doit = nl80211_flush_pmksa, | |
5041 | .policy = nl80211_policy, | |
5042 | .flags = GENL_ADMIN_PERM, | |
5043 | }, | |
9588bbd5 JM |
5044 | { |
5045 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
5046 | .doit = nl80211_remain_on_channel, | |
5047 | .policy = nl80211_policy, | |
5048 | .flags = GENL_ADMIN_PERM, | |
5049 | }, | |
5050 | { | |
5051 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5052 | .doit = nl80211_cancel_remain_on_channel, | |
5053 | .policy = nl80211_policy, | |
5054 | .flags = GENL_ADMIN_PERM, | |
5055 | }, | |
13ae75b1 JM |
5056 | { |
5057 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
5058 | .doit = nl80211_set_tx_bitrate_mask, | |
5059 | .policy = nl80211_policy, | |
5060 | .flags = GENL_ADMIN_PERM, | |
5061 | }, | |
026331c4 JM |
5062 | { |
5063 | .cmd = NL80211_CMD_REGISTER_ACTION, | |
5064 | .doit = nl80211_register_action, | |
5065 | .policy = nl80211_policy, | |
5066 | .flags = GENL_ADMIN_PERM, | |
5067 | }, | |
5068 | { | |
5069 | .cmd = NL80211_CMD_ACTION, | |
5070 | .doit = nl80211_action, | |
5071 | .policy = nl80211_policy, | |
5072 | .flags = GENL_ADMIN_PERM, | |
5073 | }, | |
ffb9eb3d KV |
5074 | { |
5075 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
5076 | .doit = nl80211_set_power_save, | |
5077 | .policy = nl80211_policy, | |
5078 | .flags = GENL_ADMIN_PERM, | |
5079 | }, | |
5080 | { | |
5081 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
5082 | .doit = nl80211_get_power_save, | |
5083 | .policy = nl80211_policy, | |
5084 | /* can be retrieved by unprivileged users */ | |
5085 | }, | |
55682965 | 5086 | }; |
9588bbd5 | 5087 | |
6039f6d2 JM |
5088 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
5089 | .name = "mlme", | |
5090 | }; | |
55682965 JB |
5091 | |
5092 | /* multicast groups */ | |
5093 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
5094 | .name = "config", | |
5095 | }; | |
2a519311 JB |
5096 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
5097 | .name = "scan", | |
5098 | }; | |
73d54c9e LR |
5099 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
5100 | .name = "regulatory", | |
5101 | }; | |
55682965 JB |
5102 | |
5103 | /* notification functions */ | |
5104 | ||
5105 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
5106 | { | |
5107 | struct sk_buff *msg; | |
5108 | ||
fd2120ca | 5109 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
5110 | if (!msg) |
5111 | return; | |
5112 | ||
5113 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
5114 | nlmsg_free(msg); | |
5115 | return; | |
5116 | } | |
5117 | ||
463d0183 JB |
5118 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5119 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
5120 | } |
5121 | ||
362a415d JB |
5122 | static int nl80211_add_scan_req(struct sk_buff *msg, |
5123 | struct cfg80211_registered_device *rdev) | |
5124 | { | |
5125 | struct cfg80211_scan_request *req = rdev->scan_req; | |
5126 | struct nlattr *nest; | |
5127 | int i; | |
5128 | ||
667503dd JB |
5129 | ASSERT_RDEV_LOCK(rdev); |
5130 | ||
362a415d JB |
5131 | if (WARN_ON(!req)) |
5132 | return 0; | |
5133 | ||
5134 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
5135 | if (!nest) | |
5136 | goto nla_put_failure; | |
5137 | for (i = 0; i < req->n_ssids; i++) | |
5138 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
5139 | nla_nest_end(msg, nest); | |
5140 | ||
5141 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
5142 | if (!nest) | |
5143 | goto nla_put_failure; | |
5144 | for (i = 0; i < req->n_channels; i++) | |
5145 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
5146 | nla_nest_end(msg, nest); | |
5147 | ||
5148 | if (req->ie) | |
5149 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
5150 | ||
5151 | return 0; | |
5152 | nla_put_failure: | |
5153 | return -ENOBUFS; | |
5154 | } | |
5155 | ||
a538e2d5 JB |
5156 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
5157 | struct cfg80211_registered_device *rdev, | |
5158 | struct net_device *netdev, | |
5159 | u32 pid, u32 seq, int flags, | |
5160 | u32 cmd) | |
2a519311 JB |
5161 | { |
5162 | void *hdr; | |
5163 | ||
5164 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5165 | if (!hdr) | |
5166 | return -1; | |
5167 | ||
b5850a7a | 5168 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5169 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5170 | ||
362a415d JB |
5171 | /* ignore errors and send incomplete event anyway */ |
5172 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5173 | |
5174 | return genlmsg_end(msg, hdr); | |
5175 | ||
5176 | nla_put_failure: | |
5177 | genlmsg_cancel(msg, hdr); | |
5178 | return -EMSGSIZE; | |
5179 | } | |
5180 | ||
a538e2d5 JB |
5181 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5182 | struct net_device *netdev) | |
5183 | { | |
5184 | struct sk_buff *msg; | |
5185 | ||
5186 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5187 | if (!msg) | |
5188 | return; | |
5189 | ||
5190 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5191 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
5192 | nlmsg_free(msg); | |
5193 | return; | |
5194 | } | |
5195 | ||
463d0183 JB |
5196 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5197 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
5198 | } |
5199 | ||
2a519311 JB |
5200 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
5201 | struct net_device *netdev) | |
5202 | { | |
5203 | struct sk_buff *msg; | |
5204 | ||
fd2120ca | 5205 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5206 | if (!msg) |
5207 | return; | |
5208 | ||
a538e2d5 JB |
5209 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5210 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
5211 | nlmsg_free(msg); |
5212 | return; | |
5213 | } | |
5214 | ||
463d0183 JB |
5215 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5216 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5217 | } |
5218 | ||
5219 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5220 | struct net_device *netdev) | |
5221 | { | |
5222 | struct sk_buff *msg; | |
5223 | ||
fd2120ca | 5224 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5225 | if (!msg) |
5226 | return; | |
5227 | ||
a538e2d5 JB |
5228 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5229 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5230 | nlmsg_free(msg); |
5231 | return; | |
5232 | } | |
5233 | ||
463d0183 JB |
5234 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5235 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5236 | } |
5237 | ||
73d54c9e LR |
5238 | /* |
5239 | * This can happen on global regulatory changes or device specific settings | |
5240 | * based on custom world regulatory domains. | |
5241 | */ | |
5242 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5243 | { | |
5244 | struct sk_buff *msg; | |
5245 | void *hdr; | |
5246 | ||
fd2120ca | 5247 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5248 | if (!msg) |
5249 | return; | |
5250 | ||
5251 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5252 | if (!hdr) { | |
5253 | nlmsg_free(msg); | |
5254 | return; | |
5255 | } | |
5256 | ||
5257 | /* Userspace can always count this one always being set */ | |
5258 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5259 | ||
5260 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5261 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5262 | NL80211_REGDOM_TYPE_WORLD); | |
5263 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5264 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5265 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5266 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5267 | request->intersect) | |
5268 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5269 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5270 | else { | |
5271 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5272 | NL80211_REGDOM_TYPE_COUNTRY); | |
5273 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5274 | } | |
5275 | ||
5276 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5277 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5278 | ||
5279 | if (genlmsg_end(msg, hdr) < 0) { | |
5280 | nlmsg_free(msg); | |
5281 | return; | |
5282 | } | |
5283 | ||
bc43b28c | 5284 | rcu_read_lock(); |
463d0183 | 5285 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5286 | GFP_ATOMIC); |
5287 | rcu_read_unlock(); | |
73d54c9e LR |
5288 | |
5289 | return; | |
5290 | ||
5291 | nla_put_failure: | |
5292 | genlmsg_cancel(msg, hdr); | |
5293 | nlmsg_free(msg); | |
5294 | } | |
5295 | ||
6039f6d2 JM |
5296 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5297 | struct net_device *netdev, | |
5298 | const u8 *buf, size_t len, | |
e6d6e342 | 5299 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5300 | { |
5301 | struct sk_buff *msg; | |
5302 | void *hdr; | |
5303 | ||
e6d6e342 | 5304 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5305 | if (!msg) |
5306 | return; | |
5307 | ||
5308 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5309 | if (!hdr) { | |
5310 | nlmsg_free(msg); | |
5311 | return; | |
5312 | } | |
5313 | ||
5314 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5315 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5316 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5317 | ||
5318 | if (genlmsg_end(msg, hdr) < 0) { | |
5319 | nlmsg_free(msg); | |
5320 | return; | |
5321 | } | |
5322 | ||
463d0183 JB |
5323 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5324 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5325 | return; |
5326 | ||
5327 | nla_put_failure: | |
5328 | genlmsg_cancel(msg, hdr); | |
5329 | nlmsg_free(msg); | |
5330 | } | |
5331 | ||
5332 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5333 | struct net_device *netdev, const u8 *buf, |
5334 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5335 | { |
5336 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5337 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5338 | } |
5339 | ||
5340 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5341 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5342 | size_t len, gfp_t gfp) |
6039f6d2 | 5343 | { |
e6d6e342 JB |
5344 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5345 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5346 | } |
5347 | ||
53b46b84 | 5348 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5349 | struct net_device *netdev, const u8 *buf, |
5350 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5351 | { |
5352 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5353 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5354 | } |
5355 | ||
53b46b84 JM |
5356 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5357 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5358 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5359 | { |
5360 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5361 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5362 | } |
5363 | ||
1b06bb40 LR |
5364 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5365 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5366 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5367 | { |
5368 | struct sk_buff *msg; | |
5369 | void *hdr; | |
5370 | ||
e6d6e342 | 5371 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5372 | if (!msg) |
5373 | return; | |
5374 | ||
5375 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5376 | if (!hdr) { | |
5377 | nlmsg_free(msg); | |
5378 | return; | |
5379 | } | |
5380 | ||
5381 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5382 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5383 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5384 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5385 | ||
5386 | if (genlmsg_end(msg, hdr) < 0) { | |
5387 | nlmsg_free(msg); | |
5388 | return; | |
5389 | } | |
5390 | ||
463d0183 JB |
5391 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5392 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5393 | return; |
5394 | ||
5395 | nla_put_failure: | |
5396 | genlmsg_cancel(msg, hdr); | |
5397 | nlmsg_free(msg); | |
5398 | } | |
5399 | ||
5400 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5401 | struct net_device *netdev, const u8 *addr, |
5402 | gfp_t gfp) | |
1965c853 JM |
5403 | { |
5404 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5405 | addr, gfp); |
1965c853 JM |
5406 | } |
5407 | ||
5408 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5409 | struct net_device *netdev, const u8 *addr, |
5410 | gfp_t gfp) | |
1965c853 | 5411 | { |
e6d6e342 JB |
5412 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5413 | addr, gfp); | |
1965c853 JM |
5414 | } |
5415 | ||
b23aa676 SO |
5416 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5417 | struct net_device *netdev, const u8 *bssid, | |
5418 | const u8 *req_ie, size_t req_ie_len, | |
5419 | const u8 *resp_ie, size_t resp_ie_len, | |
5420 | u16 status, gfp_t gfp) | |
5421 | { | |
5422 | struct sk_buff *msg; | |
5423 | void *hdr; | |
5424 | ||
5425 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5426 | if (!msg) | |
5427 | return; | |
5428 | ||
5429 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5430 | if (!hdr) { | |
5431 | nlmsg_free(msg); | |
5432 | return; | |
5433 | } | |
5434 | ||
5435 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5436 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5437 | if (bssid) | |
5438 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5439 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5440 | if (req_ie) | |
5441 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5442 | if (resp_ie) | |
5443 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5444 | ||
5445 | if (genlmsg_end(msg, hdr) < 0) { | |
5446 | nlmsg_free(msg); | |
5447 | return; | |
5448 | } | |
5449 | ||
463d0183 JB |
5450 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5451 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5452 | return; |
5453 | ||
5454 | nla_put_failure: | |
5455 | genlmsg_cancel(msg, hdr); | |
5456 | nlmsg_free(msg); | |
5457 | ||
5458 | } | |
5459 | ||
5460 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5461 | struct net_device *netdev, const u8 *bssid, | |
5462 | const u8 *req_ie, size_t req_ie_len, | |
5463 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5464 | { | |
5465 | struct sk_buff *msg; | |
5466 | void *hdr; | |
5467 | ||
5468 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5469 | if (!msg) | |
5470 | return; | |
5471 | ||
5472 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5473 | if (!hdr) { | |
5474 | nlmsg_free(msg); | |
5475 | return; | |
5476 | } | |
5477 | ||
5478 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5479 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5480 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5481 | if (req_ie) | |
5482 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5483 | if (resp_ie) | |
5484 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5485 | ||
5486 | if (genlmsg_end(msg, hdr) < 0) { | |
5487 | nlmsg_free(msg); | |
5488 | return; | |
5489 | } | |
5490 | ||
463d0183 JB |
5491 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5492 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5493 | return; |
5494 | ||
5495 | nla_put_failure: | |
5496 | genlmsg_cancel(msg, hdr); | |
5497 | nlmsg_free(msg); | |
5498 | ||
5499 | } | |
5500 | ||
5501 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5502 | struct net_device *netdev, u16 reason, | |
667503dd | 5503 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5504 | { |
5505 | struct sk_buff *msg; | |
5506 | void *hdr; | |
5507 | ||
667503dd | 5508 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5509 | if (!msg) |
5510 | return; | |
5511 | ||
5512 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5513 | if (!hdr) { | |
5514 | nlmsg_free(msg); | |
5515 | return; | |
5516 | } | |
5517 | ||
5518 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5519 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5520 | if (from_ap && reason) | |
5521 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5522 | if (from_ap) | |
5523 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5524 | if (ie) | |
5525 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5526 | ||
5527 | if (genlmsg_end(msg, hdr) < 0) { | |
5528 | nlmsg_free(msg); | |
5529 | return; | |
5530 | } | |
5531 | ||
463d0183 JB |
5532 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5533 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5534 | return; |
5535 | ||
5536 | nla_put_failure: | |
5537 | genlmsg_cancel(msg, hdr); | |
5538 | nlmsg_free(msg); | |
5539 | ||
5540 | } | |
5541 | ||
04a773ad JB |
5542 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5543 | struct net_device *netdev, const u8 *bssid, | |
5544 | gfp_t gfp) | |
5545 | { | |
5546 | struct sk_buff *msg; | |
5547 | void *hdr; | |
5548 | ||
fd2120ca | 5549 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5550 | if (!msg) |
5551 | return; | |
5552 | ||
5553 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5554 | if (!hdr) { | |
5555 | nlmsg_free(msg); | |
5556 | return; | |
5557 | } | |
5558 | ||
5559 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5560 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5561 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5562 | ||
5563 | if (genlmsg_end(msg, hdr) < 0) { | |
5564 | nlmsg_free(msg); | |
5565 | return; | |
5566 | } | |
5567 | ||
463d0183 JB |
5568 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5569 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5570 | return; |
5571 | ||
5572 | nla_put_failure: | |
5573 | genlmsg_cancel(msg, hdr); | |
5574 | nlmsg_free(msg); | |
5575 | } | |
5576 | ||
a3b8b056 JM |
5577 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5578 | struct net_device *netdev, const u8 *addr, | |
5579 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5580 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5581 | { |
5582 | struct sk_buff *msg; | |
5583 | void *hdr; | |
5584 | ||
e6d6e342 | 5585 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5586 | if (!msg) |
5587 | return; | |
5588 | ||
5589 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5590 | if (!hdr) { | |
5591 | nlmsg_free(msg); | |
5592 | return; | |
5593 | } | |
5594 | ||
5595 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5596 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5597 | if (addr) | |
5598 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5599 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5600 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5601 | if (tsc) | |
5602 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5603 | ||
5604 | if (genlmsg_end(msg, hdr) < 0) { | |
5605 | nlmsg_free(msg); | |
5606 | return; | |
5607 | } | |
5608 | ||
463d0183 JB |
5609 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5610 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5611 | return; |
5612 | ||
5613 | nla_put_failure: | |
5614 | genlmsg_cancel(msg, hdr); | |
5615 | nlmsg_free(msg); | |
5616 | } | |
5617 | ||
6bad8766 LR |
5618 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5619 | struct ieee80211_channel *channel_before, | |
5620 | struct ieee80211_channel *channel_after) | |
5621 | { | |
5622 | struct sk_buff *msg; | |
5623 | void *hdr; | |
5624 | struct nlattr *nl_freq; | |
5625 | ||
fd2120ca | 5626 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5627 | if (!msg) |
5628 | return; | |
5629 | ||
5630 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5631 | if (!hdr) { | |
5632 | nlmsg_free(msg); | |
5633 | return; | |
5634 | } | |
5635 | ||
5636 | /* | |
5637 | * Since we are applying the beacon hint to a wiphy we know its | |
5638 | * wiphy_idx is valid | |
5639 | */ | |
5640 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5641 | ||
5642 | /* Before */ | |
5643 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5644 | if (!nl_freq) | |
5645 | goto nla_put_failure; | |
5646 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5647 | goto nla_put_failure; | |
5648 | nla_nest_end(msg, nl_freq); | |
5649 | ||
5650 | /* After */ | |
5651 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5652 | if (!nl_freq) | |
5653 | goto nla_put_failure; | |
5654 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5655 | goto nla_put_failure; | |
5656 | nla_nest_end(msg, nl_freq); | |
5657 | ||
5658 | if (genlmsg_end(msg, hdr) < 0) { | |
5659 | nlmsg_free(msg); | |
5660 | return; | |
5661 | } | |
5662 | ||
463d0183 JB |
5663 | rcu_read_lock(); |
5664 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5665 | GFP_ATOMIC); | |
5666 | rcu_read_unlock(); | |
6bad8766 LR |
5667 | |
5668 | return; | |
5669 | ||
5670 | nla_put_failure: | |
5671 | genlmsg_cancel(msg, hdr); | |
5672 | nlmsg_free(msg); | |
5673 | } | |
5674 | ||
9588bbd5 JM |
5675 | static void nl80211_send_remain_on_chan_event( |
5676 | int cmd, struct cfg80211_registered_device *rdev, | |
5677 | struct net_device *netdev, u64 cookie, | |
5678 | struct ieee80211_channel *chan, | |
5679 | enum nl80211_channel_type channel_type, | |
5680 | unsigned int duration, gfp_t gfp) | |
5681 | { | |
5682 | struct sk_buff *msg; | |
5683 | void *hdr; | |
5684 | ||
5685 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5686 | if (!msg) | |
5687 | return; | |
5688 | ||
5689 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5690 | if (!hdr) { | |
5691 | nlmsg_free(msg); | |
5692 | return; | |
5693 | } | |
5694 | ||
5695 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5696 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5697 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5698 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5699 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5700 | ||
5701 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5702 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5703 | ||
5704 | if (genlmsg_end(msg, hdr) < 0) { | |
5705 | nlmsg_free(msg); | |
5706 | return; | |
5707 | } | |
5708 | ||
5709 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5710 | nl80211_mlme_mcgrp.id, gfp); | |
5711 | return; | |
5712 | ||
5713 | nla_put_failure: | |
5714 | genlmsg_cancel(msg, hdr); | |
5715 | nlmsg_free(msg); | |
5716 | } | |
5717 | ||
5718 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5719 | struct net_device *netdev, u64 cookie, | |
5720 | struct ieee80211_channel *chan, | |
5721 | enum nl80211_channel_type channel_type, | |
5722 | unsigned int duration, gfp_t gfp) | |
5723 | { | |
5724 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5725 | rdev, netdev, cookie, chan, | |
5726 | channel_type, duration, gfp); | |
5727 | } | |
5728 | ||
5729 | void nl80211_send_remain_on_channel_cancel( | |
5730 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5731 | u64 cookie, struct ieee80211_channel *chan, | |
5732 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5733 | { | |
5734 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5735 | rdev, netdev, cookie, chan, | |
5736 | channel_type, 0, gfp); | |
5737 | } | |
5738 | ||
98b62183 JB |
5739 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5740 | struct net_device *dev, const u8 *mac_addr, | |
5741 | struct station_info *sinfo, gfp_t gfp) | |
5742 | { | |
5743 | struct sk_buff *msg; | |
5744 | ||
5745 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5746 | if (!msg) | |
5747 | return; | |
5748 | ||
5749 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5750 | nlmsg_free(msg); | |
5751 | return; | |
5752 | } | |
5753 | ||
5754 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5755 | nl80211_mlme_mcgrp.id, gfp); | |
5756 | } | |
5757 | ||
026331c4 JM |
5758 | int nl80211_send_action(struct cfg80211_registered_device *rdev, |
5759 | struct net_device *netdev, u32 nlpid, | |
5760 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
5761 | { | |
5762 | struct sk_buff *msg; | |
5763 | void *hdr; | |
5764 | int err; | |
5765 | ||
5766 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5767 | if (!msg) | |
5768 | return -ENOMEM; | |
5769 | ||
5770 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION); | |
5771 | if (!hdr) { | |
5772 | nlmsg_free(msg); | |
5773 | return -ENOMEM; | |
5774 | } | |
5775 | ||
5776 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5777 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5778 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5779 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5780 | ||
5781 | err = genlmsg_end(msg, hdr); | |
5782 | if (err < 0) { | |
5783 | nlmsg_free(msg); | |
5784 | return err; | |
5785 | } | |
5786 | ||
5787 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5788 | if (err < 0) | |
5789 | return err; | |
5790 | return 0; | |
5791 | ||
5792 | nla_put_failure: | |
5793 | genlmsg_cancel(msg, hdr); | |
5794 | nlmsg_free(msg); | |
5795 | return -ENOBUFS; | |
5796 | } | |
5797 | ||
5798 | void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev, | |
5799 | struct net_device *netdev, u64 cookie, | |
5800 | const u8 *buf, size_t len, bool ack, | |
5801 | gfp_t gfp) | |
5802 | { | |
5803 | struct sk_buff *msg; | |
5804 | void *hdr; | |
5805 | ||
5806 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5807 | if (!msg) | |
5808 | return; | |
5809 | ||
5810 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS); | |
5811 | if (!hdr) { | |
5812 | nlmsg_free(msg); | |
5813 | return; | |
5814 | } | |
5815 | ||
5816 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5817 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5818 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5819 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5820 | if (ack) | |
5821 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
5822 | ||
5823 | if (genlmsg_end(msg, hdr) < 0) { | |
5824 | nlmsg_free(msg); | |
5825 | return; | |
5826 | } | |
5827 | ||
5828 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
5829 | return; | |
5830 | ||
5831 | nla_put_failure: | |
5832 | genlmsg_cancel(msg, hdr); | |
5833 | nlmsg_free(msg); | |
5834 | } | |
5835 | ||
5836 | static int nl80211_netlink_notify(struct notifier_block * nb, | |
5837 | unsigned long state, | |
5838 | void *_notify) | |
5839 | { | |
5840 | struct netlink_notify *notify = _notify; | |
5841 | struct cfg80211_registered_device *rdev; | |
5842 | struct wireless_dev *wdev; | |
5843 | ||
5844 | if (state != NETLINK_URELEASE) | |
5845 | return NOTIFY_DONE; | |
5846 | ||
5847 | rcu_read_lock(); | |
5848 | ||
5849 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
5850 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
5851 | cfg80211_mlme_unregister_actions(wdev, notify->pid); | |
5852 | ||
5853 | rcu_read_unlock(); | |
5854 | ||
5855 | return NOTIFY_DONE; | |
5856 | } | |
5857 | ||
5858 | static struct notifier_block nl80211_netlink_notifier = { | |
5859 | .notifier_call = nl80211_netlink_notify, | |
5860 | }; | |
5861 | ||
55682965 JB |
5862 | /* initialisation/exit functions */ |
5863 | ||
5864 | int nl80211_init(void) | |
5865 | { | |
0d63cbb5 | 5866 | int err; |
55682965 | 5867 | |
0d63cbb5 MM |
5868 | err = genl_register_family_with_ops(&nl80211_fam, |
5869 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5870 | if (err) |
5871 | return err; | |
5872 | ||
55682965 JB |
5873 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5874 | if (err) | |
5875 | goto err_out; | |
5876 | ||
2a519311 JB |
5877 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5878 | if (err) | |
5879 | goto err_out; | |
5880 | ||
73d54c9e LR |
5881 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5882 | if (err) | |
5883 | goto err_out; | |
5884 | ||
6039f6d2 JM |
5885 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5886 | if (err) | |
5887 | goto err_out; | |
5888 | ||
aff89a9b JB |
5889 | #ifdef CONFIG_NL80211_TESTMODE |
5890 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5891 | if (err) | |
5892 | goto err_out; | |
5893 | #endif | |
5894 | ||
026331c4 JM |
5895 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
5896 | if (err) | |
5897 | goto err_out; | |
5898 | ||
55682965 JB |
5899 | return 0; |
5900 | err_out: | |
5901 | genl_unregister_family(&nl80211_fam); | |
5902 | return err; | |
5903 | } | |
5904 | ||
5905 | void nl80211_exit(void) | |
5906 | { | |
026331c4 | 5907 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
5908 | genl_unregister_family(&nl80211_fam); |
5909 | } |