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Commit | Line | Data |
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55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
08645126 | 4 | * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
55682965 JB |
10 | #include <linux/list.h> |
11 | #include <linux/if_ether.h> | |
12 | #include <linux/ieee80211.h> | |
13 | #include <linux/nl80211.h> | |
14 | #include <linux/rtnetlink.h> | |
15 | #include <linux/netlink.h> | |
2a519311 | 16 | #include <linux/etherdevice.h> |
463d0183 | 17 | #include <net/net_namespace.h> |
55682965 JB |
18 | #include <net/genetlink.h> |
19 | #include <net/cfg80211.h> | |
463d0183 | 20 | #include <net/sock.h> |
55682965 JB |
21 | #include "core.h" |
22 | #include "nl80211.h" | |
b2e1b302 | 23 | #include "reg.h" |
55682965 JB |
24 | |
25 | /* the netlink family */ | |
26 | static struct genl_family nl80211_fam = { | |
27 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
28 | .name = "nl80211", /* have users key off the name instead */ | |
29 | .hdrsize = 0, /* no private header */ | |
30 | .version = 1, /* no particular meaning now */ | |
31 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 32 | .netnsok = true, |
55682965 JB |
33 | }; |
34 | ||
79c97e97 | 35 | /* internal helper: get rdev and dev */ |
463d0183 | 36 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 37 | struct cfg80211_registered_device **rdev, |
55682965 JB |
38 | struct net_device **dev) |
39 | { | |
463d0183 | 40 | struct nlattr **attrs = info->attrs; |
55682965 JB |
41 | int ifindex; |
42 | ||
bba95fef | 43 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
44 | return -EINVAL; |
45 | ||
bba95fef | 46 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 47 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
48 | if (!*dev) |
49 | return -ENODEV; | |
50 | ||
463d0183 | 51 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 52 | if (IS_ERR(*rdev)) { |
55682965 | 53 | dev_put(*dev); |
79c97e97 | 54 | return PTR_ERR(*rdev); |
55682965 JB |
55 | } |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
60 | /* policy for the attributes */ | |
61 | static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { | |
62 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, | |
63 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 64 | .len = 20-1 }, |
31888487 | 65 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 66 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 67 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
68 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
69 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
70 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
71 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
55682965 JB |
72 | |
73 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
74 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
75 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
76 | |
77 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 78 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 79 | |
b9454e83 | 80 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
81 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
82 | .len = WLAN_MAX_KEY_LEN }, | |
83 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
84 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
85 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 86 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
87 | |
88 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
89 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
90 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
91 | .len = IEEE80211_MAX_DATA_LEN }, | |
92 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
93 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
94 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
95 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
96 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
97 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
98 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 99 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 100 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 101 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
102 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
103 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
104 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 105 | |
b2e1b302 LR |
106 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
107 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
108 | ||
9f1ba906 JM |
109 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
110 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
111 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
112 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
113 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 114 | |
93da9cc1 | 115 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
116 | ||
36aedc90 JM |
117 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
118 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
119 | |
120 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
121 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
122 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
123 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
124 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
125 | |
126 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
127 | .len = IEEE80211_MAX_SSID_LEN }, | |
128 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
129 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 130 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 131 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 132 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
133 | [NL80211_ATTR_STA_FLAGS2] = { |
134 | .len = sizeof(struct nl80211_sta_flag_update), | |
135 | }, | |
3f77316c | 136 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
b23aa676 SO |
137 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
138 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
139 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 140 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 141 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
142 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
143 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
144 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
145 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
55682965 JB |
146 | }; |
147 | ||
b9454e83 JB |
148 | /* policy for the attributes */ |
149 | static struct nla_policy | |
150 | nl80211_key_policy[NL80211_KEY_MAX + 1] __read_mostly = { | |
fffd0934 | 151 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
152 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
153 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
154 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
155 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
156 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
157 | }; | |
158 | ||
a043897a HS |
159 | /* ifidx get helper */ |
160 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
161 | { | |
162 | int res; | |
163 | ||
164 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
165 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
166 | nl80211_policy); | |
167 | if (res) | |
168 | return res; | |
169 | ||
170 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
171 | return -EINVAL; | |
172 | ||
173 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
174 | if (!res) | |
175 | return -EINVAL; | |
176 | return res; | |
177 | } | |
178 | ||
f4a11bb0 JB |
179 | /* IE validation */ |
180 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
181 | { | |
182 | const u8 *pos; | |
183 | int len; | |
184 | ||
185 | if (!attr) | |
186 | return true; | |
187 | ||
188 | pos = nla_data(attr); | |
189 | len = nla_len(attr); | |
190 | ||
191 | while (len) { | |
192 | u8 elemlen; | |
193 | ||
194 | if (len < 2) | |
195 | return false; | |
196 | len -= 2; | |
197 | ||
198 | elemlen = pos[1]; | |
199 | if (elemlen > len) | |
200 | return false; | |
201 | ||
202 | len -= elemlen; | |
203 | pos += 2 + elemlen; | |
204 | } | |
205 | ||
206 | return true; | |
207 | } | |
208 | ||
55682965 JB |
209 | /* message building helper */ |
210 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
211 | int flags, u8 cmd) | |
212 | { | |
213 | /* since there is no private header just add the generic one */ | |
214 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
215 | } | |
216 | ||
5dab3b8a LR |
217 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
218 | struct ieee80211_channel *chan) | |
219 | { | |
220 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
221 | chan->center_freq); | |
222 | ||
223 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
224 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
225 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
226 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
227 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
228 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
229 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
230 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
231 | ||
232 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
233 | DBM_TO_MBM(chan->max_power)); | |
234 | ||
235 | return 0; | |
236 | ||
237 | nla_put_failure: | |
238 | return -ENOBUFS; | |
239 | } | |
240 | ||
55682965 JB |
241 | /* netlink command implementations */ |
242 | ||
b9454e83 JB |
243 | struct key_parse { |
244 | struct key_params p; | |
245 | int idx; | |
246 | bool def, defmgmt; | |
247 | }; | |
248 | ||
249 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
250 | { | |
251 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
252 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
253 | nl80211_key_policy); | |
254 | if (err) | |
255 | return err; | |
256 | ||
257 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
258 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
259 | ||
260 | if (tb[NL80211_KEY_IDX]) | |
261 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
262 | ||
263 | if (tb[NL80211_KEY_DATA]) { | |
264 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
265 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
266 | } | |
267 | ||
268 | if (tb[NL80211_KEY_SEQ]) { | |
269 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
270 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
271 | } | |
272 | ||
273 | if (tb[NL80211_KEY_CIPHER]) | |
274 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
280 | { | |
281 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
282 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
283 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
284 | } | |
285 | ||
286 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
287 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
288 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
289 | } | |
290 | ||
291 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
292 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
293 | ||
294 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
295 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
296 | ||
297 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
298 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
299 | ||
300 | return 0; | |
301 | } | |
302 | ||
303 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
304 | { | |
305 | int err; | |
306 | ||
307 | memset(k, 0, sizeof(*k)); | |
308 | k->idx = -1; | |
309 | ||
310 | if (info->attrs[NL80211_ATTR_KEY]) | |
311 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
312 | else | |
313 | err = nl80211_parse_key_old(info, k); | |
314 | ||
315 | if (err) | |
316 | return err; | |
317 | ||
318 | if (k->def && k->defmgmt) | |
319 | return -EINVAL; | |
320 | ||
321 | if (k->idx != -1) { | |
322 | if (k->defmgmt) { | |
323 | if (k->idx < 4 || k->idx > 5) | |
324 | return -EINVAL; | |
325 | } else if (k->def) { | |
326 | if (k->idx < 0 || k->idx > 3) | |
327 | return -EINVAL; | |
328 | } else { | |
329 | if (k->idx < 0 || k->idx > 5) | |
330 | return -EINVAL; | |
331 | } | |
332 | } | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
fffd0934 JB |
337 | static struct cfg80211_cached_keys * |
338 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
339 | struct nlattr *keys) | |
340 | { | |
341 | struct key_parse parse; | |
342 | struct nlattr *key; | |
343 | struct cfg80211_cached_keys *result; | |
344 | int rem, err, def = 0; | |
345 | ||
346 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
347 | if (!result) | |
348 | return ERR_PTR(-ENOMEM); | |
349 | ||
350 | result->def = -1; | |
351 | result->defmgmt = -1; | |
352 | ||
353 | nla_for_each_nested(key, keys, rem) { | |
354 | memset(&parse, 0, sizeof(parse)); | |
355 | parse.idx = -1; | |
356 | ||
357 | err = nl80211_parse_key_new(key, &parse); | |
358 | if (err) | |
359 | goto error; | |
360 | err = -EINVAL; | |
361 | if (!parse.p.key) | |
362 | goto error; | |
363 | if (parse.idx < 0 || parse.idx > 4) | |
364 | goto error; | |
365 | if (parse.def) { | |
366 | if (def) | |
367 | goto error; | |
368 | def = 1; | |
369 | result->def = parse.idx; | |
370 | } else if (parse.defmgmt) | |
371 | goto error; | |
372 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
373 | parse.idx, NULL); | |
374 | if (err) | |
375 | goto error; | |
376 | result->params[parse.idx].cipher = parse.p.cipher; | |
377 | result->params[parse.idx].key_len = parse.p.key_len; | |
378 | result->params[parse.idx].key = result->data[parse.idx]; | |
379 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
380 | } | |
381 | ||
382 | return result; | |
383 | error: | |
384 | kfree(result); | |
385 | return ERR_PTR(err); | |
386 | } | |
387 | ||
388 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
389 | { | |
390 | ASSERT_WDEV_LOCK(wdev); | |
391 | ||
392 | if (!netif_running(wdev->netdev)) | |
393 | return -ENETDOWN; | |
394 | ||
395 | switch (wdev->iftype) { | |
396 | case NL80211_IFTYPE_AP: | |
397 | case NL80211_IFTYPE_AP_VLAN: | |
398 | break; | |
399 | case NL80211_IFTYPE_ADHOC: | |
400 | if (!wdev->current_bss) | |
401 | return -ENOLINK; | |
402 | break; | |
403 | case NL80211_IFTYPE_STATION: | |
404 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
405 | return -ENOLINK; | |
406 | break; | |
407 | default: | |
408 | return -EINVAL; | |
409 | } | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
55682965 JB |
414 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
415 | struct cfg80211_registered_device *dev) | |
416 | { | |
417 | void *hdr; | |
ee688b00 JB |
418 | struct nlattr *nl_bands, *nl_band; |
419 | struct nlattr *nl_freqs, *nl_freq; | |
420 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 421 | struct nlattr *nl_modes; |
8fdc621d | 422 | struct nlattr *nl_cmds; |
ee688b00 JB |
423 | enum ieee80211_band band; |
424 | struct ieee80211_channel *chan; | |
425 | struct ieee80211_rate *rate; | |
426 | int i; | |
f59ac048 | 427 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
428 | |
429 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
430 | if (!hdr) | |
431 | return -1; | |
432 | ||
b5850a7a | 433 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 434 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 435 | |
f5ea9120 JB |
436 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
437 | cfg80211_rdev_list_generation); | |
438 | ||
b9a5f8ca JM |
439 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
440 | dev->wiphy.retry_short); | |
441 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
442 | dev->wiphy.retry_long); | |
443 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
444 | dev->wiphy.frag_threshold); | |
445 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
446 | dev->wiphy.rts_threshold); | |
447 | ||
2a519311 JB |
448 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
449 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
450 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
451 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 452 | |
25e47c18 JB |
453 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
454 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
455 | dev->wiphy.cipher_suites); | |
456 | ||
67fbb16b SO |
457 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
458 | dev->wiphy.max_num_pmkids); | |
459 | ||
f59ac048 LR |
460 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
461 | if (!nl_modes) | |
462 | goto nla_put_failure; | |
463 | ||
464 | i = 0; | |
465 | while (ifmodes) { | |
466 | if (ifmodes & 1) | |
467 | NLA_PUT_FLAG(msg, i); | |
468 | ifmodes >>= 1; | |
469 | i++; | |
470 | } | |
471 | ||
472 | nla_nest_end(msg, nl_modes); | |
473 | ||
ee688b00 JB |
474 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
475 | if (!nl_bands) | |
476 | goto nla_put_failure; | |
477 | ||
478 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
479 | if (!dev->wiphy.bands[band]) | |
480 | continue; | |
481 | ||
482 | nl_band = nla_nest_start(msg, band); | |
483 | if (!nl_band) | |
484 | goto nla_put_failure; | |
485 | ||
d51626df JB |
486 | /* add HT info */ |
487 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
488 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
489 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
490 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
491 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
492 | dev->wiphy.bands[band]->ht_cap.cap); | |
493 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
494 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
495 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
496 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
497 | } | |
498 | ||
ee688b00 JB |
499 | /* add frequencies */ |
500 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
501 | if (!nl_freqs) | |
502 | goto nla_put_failure; | |
503 | ||
504 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
505 | nl_freq = nla_nest_start(msg, i); | |
506 | if (!nl_freq) | |
507 | goto nla_put_failure; | |
508 | ||
509 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
510 | |
511 | if (nl80211_msg_put_channel(msg, chan)) | |
512 | goto nla_put_failure; | |
e2f367f2 | 513 | |
ee688b00 JB |
514 | nla_nest_end(msg, nl_freq); |
515 | } | |
516 | ||
517 | nla_nest_end(msg, nl_freqs); | |
518 | ||
519 | /* add bitrates */ | |
520 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
521 | if (!nl_rates) | |
522 | goto nla_put_failure; | |
523 | ||
524 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
525 | nl_rate = nla_nest_start(msg, i); | |
526 | if (!nl_rate) | |
527 | goto nla_put_failure; | |
528 | ||
529 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
530 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
531 | rate->bitrate); | |
532 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
533 | NLA_PUT_FLAG(msg, | |
534 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
535 | ||
536 | nla_nest_end(msg, nl_rate); | |
537 | } | |
538 | ||
539 | nla_nest_end(msg, nl_rates); | |
540 | ||
541 | nla_nest_end(msg, nl_band); | |
542 | } | |
543 | nla_nest_end(msg, nl_bands); | |
544 | ||
8fdc621d JB |
545 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
546 | if (!nl_cmds) | |
547 | goto nla_put_failure; | |
548 | ||
549 | i = 0; | |
550 | #define CMD(op, n) \ | |
551 | do { \ | |
552 | if (dev->ops->op) { \ | |
553 | i++; \ | |
554 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
555 | } \ | |
556 | } while (0) | |
557 | ||
558 | CMD(add_virtual_intf, NEW_INTERFACE); | |
559 | CMD(change_virtual_intf, SET_INTERFACE); | |
560 | CMD(add_key, NEW_KEY); | |
561 | CMD(add_beacon, NEW_BEACON); | |
562 | CMD(add_station, NEW_STATION); | |
563 | CMD(add_mpath, NEW_MPATH); | |
564 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
565 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
566 | CMD(auth, AUTHENTICATE); |
567 | CMD(assoc, ASSOCIATE); | |
568 | CMD(deauth, DEAUTHENTICATE); | |
569 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 570 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
571 | CMD(set_pmksa, SET_PMKSA); |
572 | CMD(del_pmksa, DEL_PMKSA); | |
573 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 574 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
5be83de5 | 575 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
576 | i++; |
577 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
578 | } | |
8fdc621d JB |
579 | |
580 | #undef CMD | |
b23aa676 | 581 | |
6829c878 | 582 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
583 | i++; |
584 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
585 | } | |
586 | ||
6829c878 | 587 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
588 | i++; |
589 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
590 | } | |
591 | ||
8fdc621d JB |
592 | nla_nest_end(msg, nl_cmds); |
593 | ||
55682965 JB |
594 | return genlmsg_end(msg, hdr); |
595 | ||
596 | nla_put_failure: | |
bc3ed28c TG |
597 | genlmsg_cancel(msg, hdr); |
598 | return -EMSGSIZE; | |
55682965 JB |
599 | } |
600 | ||
601 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
602 | { | |
603 | int idx = 0; | |
604 | int start = cb->args[0]; | |
605 | struct cfg80211_registered_device *dev; | |
606 | ||
a1794390 | 607 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 608 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
609 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
610 | continue; | |
b4637271 | 611 | if (++idx <= start) |
55682965 JB |
612 | continue; |
613 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
614 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
615 | dev) < 0) { |
616 | idx--; | |
55682965 | 617 | break; |
b4637271 | 618 | } |
55682965 | 619 | } |
a1794390 | 620 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
621 | |
622 | cb->args[0] = idx; | |
623 | ||
624 | return skb->len; | |
625 | } | |
626 | ||
627 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
628 | { | |
629 | struct sk_buff *msg; | |
630 | struct cfg80211_registered_device *dev; | |
631 | ||
632 | dev = cfg80211_get_dev_from_info(info); | |
633 | if (IS_ERR(dev)) | |
634 | return PTR_ERR(dev); | |
635 | ||
fd2120ca | 636 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
637 | if (!msg) |
638 | goto out_err; | |
639 | ||
640 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
641 | goto out_free; | |
642 | ||
4d0c8aea | 643 | cfg80211_unlock_rdev(dev); |
55682965 | 644 | |
134e6375 | 645 | return genlmsg_reply(msg, info); |
55682965 JB |
646 | |
647 | out_free: | |
648 | nlmsg_free(msg); | |
649 | out_err: | |
4d0c8aea | 650 | cfg80211_unlock_rdev(dev); |
55682965 JB |
651 | return -ENOBUFS; |
652 | } | |
653 | ||
31888487 JM |
654 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
655 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
656 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
657 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
658 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
659 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
660 | }; | |
661 | ||
662 | static int parse_txq_params(struct nlattr *tb[], | |
663 | struct ieee80211_txq_params *txq_params) | |
664 | { | |
665 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
666 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
667 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
668 | return -EINVAL; | |
669 | ||
670 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
671 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
672 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
673 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
674 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
675 | ||
676 | return 0; | |
677 | } | |
678 | ||
55682965 JB |
679 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
680 | { | |
681 | struct cfg80211_registered_device *rdev; | |
31888487 JM |
682 | int result = 0, rem_txq_params = 0; |
683 | struct nlattr *nl_txq_params; | |
b9a5f8ca JM |
684 | u32 changed; |
685 | u8 retry_short = 0, retry_long = 0; | |
686 | u32 frag_threshold = 0, rts_threshold = 0; | |
55682965 | 687 | |
4bbf4d56 | 688 | rtnl_lock(); |
55682965 | 689 | |
4bbf4d56 JB |
690 | mutex_lock(&cfg80211_mutex); |
691 | ||
79c97e97 | 692 | rdev = __cfg80211_rdev_from_info(info); |
4bbf4d56 | 693 | if (IS_ERR(rdev)) { |
1f5fc70a | 694 | mutex_unlock(&cfg80211_mutex); |
4bbf4d56 JB |
695 | result = PTR_ERR(rdev); |
696 | goto unlock; | |
697 | } | |
698 | ||
699 | mutex_lock(&rdev->mtx); | |
700 | ||
701 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
702 | result = cfg80211_dev_rename( |
703 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
704 | |
705 | mutex_unlock(&cfg80211_mutex); | |
706 | ||
707 | if (result) | |
708 | goto bad_res; | |
31888487 JM |
709 | |
710 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
711 | struct ieee80211_txq_params txq_params; | |
712 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
713 | ||
714 | if (!rdev->ops->set_txq_params) { | |
715 | result = -EOPNOTSUPP; | |
716 | goto bad_res; | |
717 | } | |
718 | ||
719 | nla_for_each_nested(nl_txq_params, | |
720 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
721 | rem_txq_params) { | |
722 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
723 | nla_data(nl_txq_params), | |
724 | nla_len(nl_txq_params), | |
725 | txq_params_policy); | |
726 | result = parse_txq_params(tb, &txq_params); | |
727 | if (result) | |
728 | goto bad_res; | |
729 | ||
730 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
731 | &txq_params); | |
732 | if (result) | |
733 | goto bad_res; | |
734 | } | |
735 | } | |
55682965 | 736 | |
72bdcf34 | 737 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
094d05dc | 738 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; |
294196ab | 739 | u32 freq; |
72bdcf34 | 740 | |
306d6112 JB |
741 | result = -EINVAL; |
742 | ||
094d05dc S |
743 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
744 | channel_type = nla_get_u32(info->attrs[ | |
745 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
746 | if (channel_type != NL80211_CHAN_NO_HT && | |
747 | channel_type != NL80211_CHAN_HT20 && | |
748 | channel_type != NL80211_CHAN_HT40PLUS && | |
749 | channel_type != NL80211_CHAN_HT40MINUS) | |
72bdcf34 | 750 | goto bad_res; |
72bdcf34 JM |
751 | } |
752 | ||
753 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
306d6112 | 754 | |
59bbb6f7 | 755 | mutex_lock(&rdev->devlist_mtx); |
4b181144 | 756 | result = rdev_set_freq(rdev, NULL, freq, channel_type); |
59bbb6f7 | 757 | mutex_unlock(&rdev->devlist_mtx); |
72bdcf34 JM |
758 | if (result) |
759 | goto bad_res; | |
760 | } | |
761 | ||
b9a5f8ca JM |
762 | changed = 0; |
763 | ||
764 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
765 | retry_short = nla_get_u8( | |
766 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
767 | if (retry_short == 0) { | |
768 | result = -EINVAL; | |
769 | goto bad_res; | |
770 | } | |
771 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
772 | } | |
773 | ||
774 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
775 | retry_long = nla_get_u8( | |
776 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
777 | if (retry_long == 0) { | |
778 | result = -EINVAL; | |
779 | goto bad_res; | |
780 | } | |
781 | changed |= WIPHY_PARAM_RETRY_LONG; | |
782 | } | |
783 | ||
784 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
785 | frag_threshold = nla_get_u32( | |
786 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
787 | if (frag_threshold < 256) { | |
788 | result = -EINVAL; | |
789 | goto bad_res; | |
790 | } | |
791 | if (frag_threshold != (u32) -1) { | |
792 | /* | |
793 | * Fragments (apart from the last one) are required to | |
794 | * have even length. Make the fragmentation code | |
795 | * simpler by stripping LSB should someone try to use | |
796 | * odd threshold value. | |
797 | */ | |
798 | frag_threshold &= ~0x1; | |
799 | } | |
800 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
801 | } | |
802 | ||
803 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
804 | rts_threshold = nla_get_u32( | |
805 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
806 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
807 | } | |
808 | ||
809 | if (changed) { | |
810 | u8 old_retry_short, old_retry_long; | |
811 | u32 old_frag_threshold, old_rts_threshold; | |
812 | ||
813 | if (!rdev->ops->set_wiphy_params) { | |
814 | result = -EOPNOTSUPP; | |
815 | goto bad_res; | |
816 | } | |
817 | ||
818 | old_retry_short = rdev->wiphy.retry_short; | |
819 | old_retry_long = rdev->wiphy.retry_long; | |
820 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
821 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
822 | ||
823 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
824 | rdev->wiphy.retry_short = retry_short; | |
825 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
826 | rdev->wiphy.retry_long = retry_long; | |
827 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
828 | rdev->wiphy.frag_threshold = frag_threshold; | |
829 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
830 | rdev->wiphy.rts_threshold = rts_threshold; | |
831 | ||
832 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
833 | if (result) { | |
834 | rdev->wiphy.retry_short = old_retry_short; | |
835 | rdev->wiphy.retry_long = old_retry_long; | |
836 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
837 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
838 | } | |
839 | } | |
72bdcf34 | 840 | |
306d6112 | 841 | bad_res: |
4bbf4d56 JB |
842 | mutex_unlock(&rdev->mtx); |
843 | unlock: | |
844 | rtnl_unlock(); | |
55682965 JB |
845 | return result; |
846 | } | |
847 | ||
848 | ||
849 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 850 | struct cfg80211_registered_device *rdev, |
55682965 JB |
851 | struct net_device *dev) |
852 | { | |
853 | void *hdr; | |
854 | ||
855 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
856 | if (!hdr) | |
857 | return -1; | |
858 | ||
859 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 860 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 861 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 862 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
863 | |
864 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
865 | rdev->devlist_generation ^ | |
866 | (cfg80211_rdev_list_generation << 2)); | |
867 | ||
55682965 JB |
868 | return genlmsg_end(msg, hdr); |
869 | ||
870 | nla_put_failure: | |
bc3ed28c TG |
871 | genlmsg_cancel(msg, hdr); |
872 | return -EMSGSIZE; | |
55682965 JB |
873 | } |
874 | ||
875 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
876 | { | |
877 | int wp_idx = 0; | |
878 | int if_idx = 0; | |
879 | int wp_start = cb->args[0]; | |
880 | int if_start = cb->args[1]; | |
f5ea9120 | 881 | struct cfg80211_registered_device *rdev; |
55682965 JB |
882 | struct wireless_dev *wdev; |
883 | ||
a1794390 | 884 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
885 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
886 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 887 | continue; |
bba95fef JB |
888 | if (wp_idx < wp_start) { |
889 | wp_idx++; | |
55682965 | 890 | continue; |
bba95fef | 891 | } |
55682965 JB |
892 | if_idx = 0; |
893 | ||
f5ea9120 JB |
894 | mutex_lock(&rdev->devlist_mtx); |
895 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
896 | if (if_idx < if_start) { |
897 | if_idx++; | |
55682965 | 898 | continue; |
bba95fef | 899 | } |
55682965 JB |
900 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
901 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
902 | rdev, wdev->netdev) < 0) { |
903 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
904 | goto out; |
905 | } | |
906 | if_idx++; | |
55682965 | 907 | } |
f5ea9120 | 908 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
909 | |
910 | wp_idx++; | |
55682965 | 911 | } |
bba95fef | 912 | out: |
a1794390 | 913 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
914 | |
915 | cb->args[0] = wp_idx; | |
916 | cb->args[1] = if_idx; | |
917 | ||
918 | return skb->len; | |
919 | } | |
920 | ||
921 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
922 | { | |
923 | struct sk_buff *msg; | |
924 | struct cfg80211_registered_device *dev; | |
925 | struct net_device *netdev; | |
926 | int err; | |
927 | ||
463d0183 | 928 | err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); |
55682965 JB |
929 | if (err) |
930 | return err; | |
931 | ||
fd2120ca | 932 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
933 | if (!msg) |
934 | goto out_err; | |
935 | ||
d726405a JB |
936 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
937 | dev, netdev) < 0) | |
55682965 JB |
938 | goto out_free; |
939 | ||
940 | dev_put(netdev); | |
4d0c8aea | 941 | cfg80211_unlock_rdev(dev); |
55682965 | 942 | |
134e6375 | 943 | return genlmsg_reply(msg, info); |
55682965 JB |
944 | |
945 | out_free: | |
946 | nlmsg_free(msg); | |
947 | out_err: | |
948 | dev_put(netdev); | |
4d0c8aea | 949 | cfg80211_unlock_rdev(dev); |
55682965 JB |
950 | return -ENOBUFS; |
951 | } | |
952 | ||
66f7ac50 MW |
953 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
954 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
955 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
956 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
957 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
958 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
959 | }; | |
960 | ||
961 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
962 | { | |
963 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
964 | int flag; | |
965 | ||
966 | *mntrflags = 0; | |
967 | ||
968 | if (!nla) | |
969 | return -EINVAL; | |
970 | ||
971 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
972 | nla, mntr_flags_policy)) | |
973 | return -EINVAL; | |
974 | ||
975 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
976 | if (flags[flag]) | |
977 | *mntrflags |= (1<<flag); | |
978 | ||
979 | return 0; | |
980 | } | |
981 | ||
9bc383de | 982 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
983 | struct net_device *netdev, u8 use_4addr, |
984 | enum nl80211_iftype iftype) | |
9bc383de | 985 | { |
ad4bb6f8 JB |
986 | if (!use_4addr) { |
987 | if (netdev && netdev->br_port) | |
988 | return -EBUSY; | |
9bc383de | 989 | return 0; |
ad4bb6f8 | 990 | } |
9bc383de JB |
991 | |
992 | switch (iftype) { | |
993 | case NL80211_IFTYPE_AP_VLAN: | |
994 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
995 | return 0; | |
996 | break; | |
997 | case NL80211_IFTYPE_STATION: | |
998 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
999 | return 0; | |
1000 | break; | |
1001 | default: | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | return -EOPNOTSUPP; | |
1006 | } | |
1007 | ||
55682965 JB |
1008 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1009 | { | |
79c97e97 | 1010 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1011 | struct vif_params params; |
e36d56b6 | 1012 | int err; |
04a773ad | 1013 | enum nl80211_iftype otype, ntype; |
55682965 | 1014 | struct net_device *dev; |
92ffe055 | 1015 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1016 | bool change = false; |
55682965 | 1017 | |
2ec600d6 LCC |
1018 | memset(¶ms, 0, sizeof(params)); |
1019 | ||
3b85875a JB |
1020 | rtnl_lock(); |
1021 | ||
463d0183 | 1022 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1023 | if (err) |
3b85875a JB |
1024 | goto unlock_rtnl; |
1025 | ||
04a773ad | 1026 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1027 | |
723b038d | 1028 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1029 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1030 | if (otype != ntype) |
ac7f9cfa | 1031 | change = true; |
04a773ad | 1032 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 1033 | err = -EINVAL; |
723b038d | 1034 | goto unlock; |
ac7f9cfa | 1035 | } |
723b038d JB |
1036 | } |
1037 | ||
92ffe055 | 1038 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1039 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1040 | err = -EINVAL; |
1041 | goto unlock; | |
1042 | } | |
2ec600d6 LCC |
1043 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1044 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1045 | change = true; |
2ec600d6 LCC |
1046 | } |
1047 | ||
8b787643 FF |
1048 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1049 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1050 | change = true; | |
ad4bb6f8 | 1051 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de JB |
1052 | if (err) |
1053 | goto unlock; | |
8b787643 FF |
1054 | } else { |
1055 | params.use_4addr = -1; | |
1056 | } | |
1057 | ||
92ffe055 | 1058 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1059 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1060 | err = -EINVAL; |
1061 | goto unlock; | |
1062 | } | |
1063 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1064 | &_flags); | |
ac7f9cfa JB |
1065 | if (err) |
1066 | goto unlock; | |
1067 | ||
1068 | flags = &_flags; | |
1069 | change = true; | |
92ffe055 | 1070 | } |
3b85875a | 1071 | |
ac7f9cfa | 1072 | if (change) |
3d54d255 | 1073 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1074 | else |
1075 | err = 0; | |
60719ffd | 1076 | |
9bc383de JB |
1077 | if (!err && params.use_4addr != -1) |
1078 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1079 | ||
55682965 | 1080 | unlock: |
e36d56b6 | 1081 | dev_put(dev); |
79c97e97 | 1082 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1083 | unlock_rtnl: |
1084 | rtnl_unlock(); | |
55682965 JB |
1085 | return err; |
1086 | } | |
1087 | ||
1088 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1089 | { | |
79c97e97 | 1090 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1091 | struct vif_params params; |
55682965 JB |
1092 | int err; |
1093 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1094 | u32 flags; |
55682965 | 1095 | |
2ec600d6 LCC |
1096 | memset(¶ms, 0, sizeof(params)); |
1097 | ||
55682965 JB |
1098 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1099 | return -EINVAL; | |
1100 | ||
1101 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1102 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1103 | if (type > NL80211_IFTYPE_MAX) | |
1104 | return -EINVAL; | |
1105 | } | |
1106 | ||
3b85875a JB |
1107 | rtnl_lock(); |
1108 | ||
79c97e97 JB |
1109 | rdev = cfg80211_get_dev_from_info(info); |
1110 | if (IS_ERR(rdev)) { | |
1111 | err = PTR_ERR(rdev); | |
3b85875a JB |
1112 | goto unlock_rtnl; |
1113 | } | |
55682965 | 1114 | |
79c97e97 JB |
1115 | if (!rdev->ops->add_virtual_intf || |
1116 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1117 | err = -EOPNOTSUPP; |
1118 | goto unlock; | |
1119 | } | |
1120 | ||
2ec600d6 LCC |
1121 | if (type == NL80211_IFTYPE_MESH_POINT && |
1122 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1123 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1124 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1125 | } | |
1126 | ||
9bc383de | 1127 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1128 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1129 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de JB |
1130 | if (err) |
1131 | goto unlock; | |
1132 | } | |
8b787643 | 1133 | |
66f7ac50 MW |
1134 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1135 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1136 | &flags); | |
79c97e97 | 1137 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1138 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1139 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1140 | |
55682965 | 1141 | unlock: |
79c97e97 | 1142 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1143 | unlock_rtnl: |
1144 | rtnl_unlock(); | |
55682965 JB |
1145 | return err; |
1146 | } | |
1147 | ||
1148 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1149 | { | |
79c97e97 | 1150 | struct cfg80211_registered_device *rdev; |
463d0183 | 1151 | int err; |
55682965 JB |
1152 | struct net_device *dev; |
1153 | ||
3b85875a JB |
1154 | rtnl_lock(); |
1155 | ||
463d0183 | 1156 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1157 | if (err) |
3b85875a | 1158 | goto unlock_rtnl; |
55682965 | 1159 | |
79c97e97 | 1160 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1161 | err = -EOPNOTSUPP; |
1162 | goto out; | |
1163 | } | |
1164 | ||
463d0183 | 1165 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1166 | |
1167 | out: | |
79c97e97 | 1168 | cfg80211_unlock_rdev(rdev); |
463d0183 | 1169 | dev_put(dev); |
3b85875a JB |
1170 | unlock_rtnl: |
1171 | rtnl_unlock(); | |
55682965 JB |
1172 | return err; |
1173 | } | |
1174 | ||
41ade00f JB |
1175 | struct get_key_cookie { |
1176 | struct sk_buff *msg; | |
1177 | int error; | |
b9454e83 | 1178 | int idx; |
41ade00f JB |
1179 | }; |
1180 | ||
1181 | static void get_key_callback(void *c, struct key_params *params) | |
1182 | { | |
b9454e83 | 1183 | struct nlattr *key; |
41ade00f JB |
1184 | struct get_key_cookie *cookie = c; |
1185 | ||
1186 | if (params->key) | |
1187 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1188 | params->key_len, params->key); | |
1189 | ||
1190 | if (params->seq) | |
1191 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1192 | params->seq_len, params->seq); | |
1193 | ||
1194 | if (params->cipher) | |
1195 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1196 | params->cipher); | |
1197 | ||
b9454e83 JB |
1198 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1199 | if (!key) | |
1200 | goto nla_put_failure; | |
1201 | ||
1202 | if (params->key) | |
1203 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1204 | params->key_len, params->key); | |
1205 | ||
1206 | if (params->seq) | |
1207 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1208 | params->seq_len, params->seq); | |
1209 | ||
1210 | if (params->cipher) | |
1211 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1212 | params->cipher); | |
1213 | ||
1214 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1215 | ||
1216 | nla_nest_end(cookie->msg, key); | |
1217 | ||
41ade00f JB |
1218 | return; |
1219 | nla_put_failure: | |
1220 | cookie->error = 1; | |
1221 | } | |
1222 | ||
1223 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1224 | { | |
79c97e97 | 1225 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1226 | int err; |
1227 | struct net_device *dev; | |
1228 | u8 key_idx = 0; | |
1229 | u8 *mac_addr = NULL; | |
1230 | struct get_key_cookie cookie = { | |
1231 | .error = 0, | |
1232 | }; | |
1233 | void *hdr; | |
1234 | struct sk_buff *msg; | |
1235 | ||
1236 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1237 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1238 | ||
3cfcf6ac | 1239 | if (key_idx > 5) |
41ade00f JB |
1240 | return -EINVAL; |
1241 | ||
1242 | if (info->attrs[NL80211_ATTR_MAC]) | |
1243 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1244 | ||
3b85875a JB |
1245 | rtnl_lock(); |
1246 | ||
463d0183 | 1247 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1248 | if (err) |
3b85875a | 1249 | goto unlock_rtnl; |
41ade00f | 1250 | |
79c97e97 | 1251 | if (!rdev->ops->get_key) { |
41ade00f JB |
1252 | err = -EOPNOTSUPP; |
1253 | goto out; | |
1254 | } | |
1255 | ||
fd2120ca | 1256 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1257 | if (!msg) { |
1258 | err = -ENOMEM; | |
1259 | goto out; | |
1260 | } | |
1261 | ||
1262 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1263 | NL80211_CMD_NEW_KEY); | |
1264 | ||
1265 | if (IS_ERR(hdr)) { | |
1266 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1267 | goto free_msg; |
41ade00f JB |
1268 | } |
1269 | ||
1270 | cookie.msg = msg; | |
b9454e83 | 1271 | cookie.idx = key_idx; |
41ade00f JB |
1272 | |
1273 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1274 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1275 | if (mac_addr) | |
1276 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1277 | ||
79c97e97 | 1278 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1279 | &cookie, get_key_callback); |
41ade00f JB |
1280 | |
1281 | if (err) | |
6c95e2a2 | 1282 | goto free_msg; |
41ade00f JB |
1283 | |
1284 | if (cookie.error) | |
1285 | goto nla_put_failure; | |
1286 | ||
1287 | genlmsg_end(msg, hdr); | |
134e6375 | 1288 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1289 | goto out; |
1290 | ||
1291 | nla_put_failure: | |
1292 | err = -ENOBUFS; | |
6c95e2a2 | 1293 | free_msg: |
41ade00f JB |
1294 | nlmsg_free(msg); |
1295 | out: | |
79c97e97 | 1296 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1297 | dev_put(dev); |
3b85875a JB |
1298 | unlock_rtnl: |
1299 | rtnl_unlock(); | |
1300 | ||
41ade00f JB |
1301 | return err; |
1302 | } | |
1303 | ||
1304 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1305 | { | |
79c97e97 | 1306 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1307 | struct key_parse key; |
41ade00f JB |
1308 | int err; |
1309 | struct net_device *dev; | |
3cfcf6ac JM |
1310 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1311 | u8 key_index); | |
41ade00f | 1312 | |
b9454e83 JB |
1313 | err = nl80211_parse_key(info, &key); |
1314 | if (err) | |
1315 | return err; | |
41ade00f | 1316 | |
b9454e83 | 1317 | if (key.idx < 0) |
41ade00f JB |
1318 | return -EINVAL; |
1319 | ||
b9454e83 JB |
1320 | /* only support setting default key */ |
1321 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1322 | return -EINVAL; |
1323 | ||
3b85875a JB |
1324 | rtnl_lock(); |
1325 | ||
463d0183 | 1326 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1327 | if (err) |
3b85875a | 1328 | goto unlock_rtnl; |
41ade00f | 1329 | |
b9454e83 | 1330 | if (key.def) |
79c97e97 | 1331 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1332 | else |
79c97e97 | 1333 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1334 | |
1335 | if (!func) { | |
41ade00f JB |
1336 | err = -EOPNOTSUPP; |
1337 | goto out; | |
1338 | } | |
1339 | ||
fffd0934 JB |
1340 | wdev_lock(dev->ieee80211_ptr); |
1341 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1342 | if (!err) | |
1343 | err = func(&rdev->wiphy, dev, key.idx); | |
1344 | ||
3d23e349 | 1345 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1346 | if (!err) { |
79c97e97 | 1347 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1348 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1349 | else |
b9454e83 | 1350 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1351 | } |
1352 | #endif | |
fffd0934 | 1353 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1354 | |
1355 | out: | |
79c97e97 | 1356 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1357 | dev_put(dev); |
3b85875a JB |
1358 | |
1359 | unlock_rtnl: | |
1360 | rtnl_unlock(); | |
1361 | ||
41ade00f JB |
1362 | return err; |
1363 | } | |
1364 | ||
1365 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1366 | { | |
79c97e97 | 1367 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1368 | int err; |
41ade00f | 1369 | struct net_device *dev; |
b9454e83 | 1370 | struct key_parse key; |
41ade00f JB |
1371 | u8 *mac_addr = NULL; |
1372 | ||
b9454e83 JB |
1373 | err = nl80211_parse_key(info, &key); |
1374 | if (err) | |
1375 | return err; | |
41ade00f | 1376 | |
b9454e83 | 1377 | if (!key.p.key) |
41ade00f JB |
1378 | return -EINVAL; |
1379 | ||
41ade00f JB |
1380 | if (info->attrs[NL80211_ATTR_MAC]) |
1381 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1382 | ||
3b85875a JB |
1383 | rtnl_lock(); |
1384 | ||
463d0183 | 1385 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1386 | if (err) |
3b85875a | 1387 | goto unlock_rtnl; |
41ade00f | 1388 | |
fffd0934 JB |
1389 | if (!rdev->ops->add_key) { |
1390 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1391 | goto out; |
1392 | } | |
1393 | ||
fffd0934 JB |
1394 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1395 | err = -EINVAL; | |
41ade00f JB |
1396 | goto out; |
1397 | } | |
1398 | ||
fffd0934 JB |
1399 | wdev_lock(dev->ieee80211_ptr); |
1400 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1401 | if (!err) | |
1402 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1403 | mac_addr, &key.p); | |
1404 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1405 | |
1406 | out: | |
79c97e97 | 1407 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1408 | dev_put(dev); |
3b85875a JB |
1409 | unlock_rtnl: |
1410 | rtnl_unlock(); | |
1411 | ||
41ade00f JB |
1412 | return err; |
1413 | } | |
1414 | ||
1415 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1416 | { | |
79c97e97 | 1417 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1418 | int err; |
1419 | struct net_device *dev; | |
41ade00f | 1420 | u8 *mac_addr = NULL; |
b9454e83 | 1421 | struct key_parse key; |
41ade00f | 1422 | |
b9454e83 JB |
1423 | err = nl80211_parse_key(info, &key); |
1424 | if (err) | |
1425 | return err; | |
41ade00f JB |
1426 | |
1427 | if (info->attrs[NL80211_ATTR_MAC]) | |
1428 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1429 | ||
3b85875a JB |
1430 | rtnl_lock(); |
1431 | ||
463d0183 | 1432 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1433 | if (err) |
3b85875a | 1434 | goto unlock_rtnl; |
41ade00f | 1435 | |
79c97e97 | 1436 | if (!rdev->ops->del_key) { |
41ade00f JB |
1437 | err = -EOPNOTSUPP; |
1438 | goto out; | |
1439 | } | |
1440 | ||
fffd0934 JB |
1441 | wdev_lock(dev->ieee80211_ptr); |
1442 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1443 | if (!err) | |
1444 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1445 | |
3d23e349 | 1446 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1447 | if (!err) { |
b9454e83 | 1448 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1449 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1450 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1451 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1452 | } | |
1453 | #endif | |
fffd0934 | 1454 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1455 | |
41ade00f | 1456 | out: |
79c97e97 | 1457 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1458 | dev_put(dev); |
3b85875a JB |
1459 | |
1460 | unlock_rtnl: | |
1461 | rtnl_unlock(); | |
1462 | ||
41ade00f JB |
1463 | return err; |
1464 | } | |
1465 | ||
ed1b6cc7 JB |
1466 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1467 | { | |
1468 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1469 | struct beacon_parameters *info); | |
79c97e97 | 1470 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1471 | int err; |
1472 | struct net_device *dev; | |
1473 | struct beacon_parameters params; | |
1474 | int haveinfo = 0; | |
1475 | ||
f4a11bb0 JB |
1476 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1477 | return -EINVAL; | |
1478 | ||
3b85875a JB |
1479 | rtnl_lock(); |
1480 | ||
463d0183 | 1481 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1482 | if (err) |
3b85875a | 1483 | goto unlock_rtnl; |
ed1b6cc7 | 1484 | |
eec60b03 JM |
1485 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1486 | err = -EOPNOTSUPP; | |
1487 | goto out; | |
1488 | } | |
1489 | ||
ed1b6cc7 JB |
1490 | switch (info->genlhdr->cmd) { |
1491 | case NL80211_CMD_NEW_BEACON: | |
1492 | /* these are required for NEW_BEACON */ | |
1493 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1494 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1495 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1496 | err = -EINVAL; | |
1497 | goto out; | |
1498 | } | |
1499 | ||
79c97e97 | 1500 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1501 | break; |
1502 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1503 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1504 | break; |
1505 | default: | |
1506 | WARN_ON(1); | |
1507 | err = -EOPNOTSUPP; | |
1508 | goto out; | |
1509 | } | |
1510 | ||
1511 | if (!call) { | |
1512 | err = -EOPNOTSUPP; | |
1513 | goto out; | |
1514 | } | |
1515 | ||
1516 | memset(¶ms, 0, sizeof(params)); | |
1517 | ||
1518 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1519 | params.interval = | |
1520 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1521 | haveinfo = 1; | |
1522 | } | |
1523 | ||
1524 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1525 | params.dtim_period = | |
1526 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1527 | haveinfo = 1; | |
1528 | } | |
1529 | ||
1530 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1531 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1532 | params.head_len = | |
1533 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1534 | haveinfo = 1; | |
1535 | } | |
1536 | ||
1537 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1538 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1539 | params.tail_len = | |
1540 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1541 | haveinfo = 1; | |
1542 | } | |
1543 | ||
1544 | if (!haveinfo) { | |
1545 | err = -EINVAL; | |
1546 | goto out; | |
1547 | } | |
1548 | ||
79c97e97 | 1549 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1550 | |
1551 | out: | |
79c97e97 | 1552 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1553 | dev_put(dev); |
3b85875a JB |
1554 | unlock_rtnl: |
1555 | rtnl_unlock(); | |
1556 | ||
ed1b6cc7 JB |
1557 | return err; |
1558 | } | |
1559 | ||
1560 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1561 | { | |
79c97e97 | 1562 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1563 | int err; |
1564 | struct net_device *dev; | |
1565 | ||
3b85875a JB |
1566 | rtnl_lock(); |
1567 | ||
463d0183 | 1568 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1569 | if (err) |
3b85875a | 1570 | goto unlock_rtnl; |
ed1b6cc7 | 1571 | |
79c97e97 | 1572 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1573 | err = -EOPNOTSUPP; |
1574 | goto out; | |
1575 | } | |
1576 | ||
eec60b03 JM |
1577 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1578 | err = -EOPNOTSUPP; | |
1579 | goto out; | |
1580 | } | |
79c97e97 | 1581 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1582 | |
1583 | out: | |
79c97e97 | 1584 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1585 | dev_put(dev); |
3b85875a JB |
1586 | unlock_rtnl: |
1587 | rtnl_unlock(); | |
1588 | ||
ed1b6cc7 JB |
1589 | return err; |
1590 | } | |
1591 | ||
5727ef1b JB |
1592 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1593 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1594 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1595 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1596 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1597 | }; |
1598 | ||
eccb8e8f JB |
1599 | static int parse_station_flags(struct genl_info *info, |
1600 | struct station_parameters *params) | |
5727ef1b JB |
1601 | { |
1602 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1603 | struct nlattr *nla; |
5727ef1b JB |
1604 | int flag; |
1605 | ||
eccb8e8f JB |
1606 | /* |
1607 | * Try parsing the new attribute first so userspace | |
1608 | * can specify both for older kernels. | |
1609 | */ | |
1610 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1611 | if (nla) { | |
1612 | struct nl80211_sta_flag_update *sta_flags; | |
1613 | ||
1614 | sta_flags = nla_data(nla); | |
1615 | params->sta_flags_mask = sta_flags->mask; | |
1616 | params->sta_flags_set = sta_flags->set; | |
1617 | if ((params->sta_flags_mask | | |
1618 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1619 | return -EINVAL; | |
1620 | return 0; | |
1621 | } | |
1622 | ||
1623 | /* if present, parse the old attribute */ | |
5727ef1b | 1624 | |
eccb8e8f | 1625 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1626 | if (!nla) |
1627 | return 0; | |
1628 | ||
1629 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1630 | nla, sta_flags_policy)) | |
1631 | return -EINVAL; | |
1632 | ||
eccb8e8f JB |
1633 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1634 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1635 | |
1636 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1637 | if (flags[flag]) | |
eccb8e8f | 1638 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1639 | |
1640 | return 0; | |
1641 | } | |
1642 | ||
fd5b74dc JB |
1643 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1644 | int flags, struct net_device *dev, | |
98b62183 | 1645 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1646 | { |
1647 | void *hdr; | |
420e7fab HR |
1648 | struct nlattr *sinfoattr, *txrate; |
1649 | u16 bitrate; | |
fd5b74dc JB |
1650 | |
1651 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1652 | if (!hdr) | |
1653 | return -1; | |
1654 | ||
1655 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1656 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1657 | ||
f5ea9120 JB |
1658 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1659 | ||
2ec600d6 LCC |
1660 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1661 | if (!sinfoattr) | |
fd5b74dc | 1662 | goto nla_put_failure; |
2ec600d6 LCC |
1663 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1664 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1665 | sinfo->inactive_time); | |
1666 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1667 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1668 | sinfo->rx_bytes); | |
1669 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1670 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1671 | sinfo->tx_bytes); | |
1672 | if (sinfo->filled & STATION_INFO_LLID) | |
1673 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1674 | sinfo->llid); | |
1675 | if (sinfo->filled & STATION_INFO_PLID) | |
1676 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1677 | sinfo->plid); | |
1678 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1679 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1680 | sinfo->plink_state); | |
420e7fab HR |
1681 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1682 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1683 | sinfo->signal); | |
1684 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1685 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1686 | if (!txrate) | |
1687 | goto nla_put_failure; | |
1688 | ||
254416aa JL |
1689 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1690 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1691 | if (bitrate > 0) |
1692 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1693 | |
420e7fab HR |
1694 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1695 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1696 | sinfo->txrate.mcs); | |
1697 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1698 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1699 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1700 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1701 | ||
1702 | nla_nest_end(msg, txrate); | |
1703 | } | |
98c8a60a JM |
1704 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1705 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1706 | sinfo->rx_packets); | |
1707 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1708 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1709 | sinfo->tx_packets); | |
2ec600d6 | 1710 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1711 | |
1712 | return genlmsg_end(msg, hdr); | |
1713 | ||
1714 | nla_put_failure: | |
bc3ed28c TG |
1715 | genlmsg_cancel(msg, hdr); |
1716 | return -EMSGSIZE; | |
fd5b74dc JB |
1717 | } |
1718 | ||
2ec600d6 | 1719 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1720 | struct netlink_callback *cb) |
2ec600d6 | 1721 | { |
2ec600d6 LCC |
1722 | struct station_info sinfo; |
1723 | struct cfg80211_registered_device *dev; | |
bba95fef | 1724 | struct net_device *netdev; |
2ec600d6 | 1725 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1726 | int ifidx = cb->args[0]; |
1727 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1728 | int err; |
2ec600d6 | 1729 | |
a043897a HS |
1730 | if (!ifidx) |
1731 | ifidx = nl80211_get_ifidx(cb); | |
1732 | if (ifidx < 0) | |
1733 | return ifidx; | |
2ec600d6 | 1734 | |
3b85875a JB |
1735 | rtnl_lock(); |
1736 | ||
463d0183 | 1737 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1738 | if (!netdev) { |
1739 | err = -ENODEV; | |
1740 | goto out_rtnl; | |
1741 | } | |
2ec600d6 | 1742 | |
463d0183 | 1743 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1744 | if (IS_ERR(dev)) { |
1745 | err = PTR_ERR(dev); | |
3b85875a | 1746 | goto out_rtnl; |
bba95fef JB |
1747 | } |
1748 | ||
1749 | if (!dev->ops->dump_station) { | |
eec60b03 | 1750 | err = -EOPNOTSUPP; |
bba95fef JB |
1751 | goto out_err; |
1752 | } | |
1753 | ||
bba95fef JB |
1754 | while (1) { |
1755 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1756 | mac_addr, &sinfo); | |
1757 | if (err == -ENOENT) | |
1758 | break; | |
1759 | if (err) | |
3b85875a | 1760 | goto out_err; |
bba95fef JB |
1761 | |
1762 | if (nl80211_send_station(skb, | |
1763 | NETLINK_CB(cb->skb).pid, | |
1764 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1765 | netdev, mac_addr, | |
1766 | &sinfo) < 0) | |
1767 | goto out; | |
1768 | ||
1769 | sta_idx++; | |
1770 | } | |
1771 | ||
1772 | ||
1773 | out: | |
1774 | cb->args[1] = sta_idx; | |
1775 | err = skb->len; | |
bba95fef | 1776 | out_err: |
4d0c8aea | 1777 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1778 | out_rtnl: |
1779 | rtnl_unlock(); | |
bba95fef JB |
1780 | |
1781 | return err; | |
2ec600d6 | 1782 | } |
fd5b74dc | 1783 | |
5727ef1b JB |
1784 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1785 | { | |
79c97e97 | 1786 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1787 | int err; |
1788 | struct net_device *dev; | |
2ec600d6 | 1789 | struct station_info sinfo; |
fd5b74dc JB |
1790 | struct sk_buff *msg; |
1791 | u8 *mac_addr = NULL; | |
1792 | ||
2ec600d6 | 1793 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1794 | |
1795 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1796 | return -EINVAL; | |
1797 | ||
1798 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1799 | ||
3b85875a JB |
1800 | rtnl_lock(); |
1801 | ||
463d0183 | 1802 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
fd5b74dc | 1803 | if (err) |
3b85875a | 1804 | goto out_rtnl; |
fd5b74dc | 1805 | |
79c97e97 | 1806 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
1807 | err = -EOPNOTSUPP; |
1808 | goto out; | |
1809 | } | |
1810 | ||
79c97e97 | 1811 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1812 | if (err) |
1813 | goto out; | |
1814 | ||
fd2120ca | 1815 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
1816 | if (!msg) |
1817 | goto out; | |
1818 | ||
1819 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1820 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1821 | goto out_free; |
1822 | ||
134e6375 | 1823 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
1824 | goto out; |
1825 | ||
1826 | out_free: | |
1827 | nlmsg_free(msg); | |
fd5b74dc | 1828 | out: |
79c97e97 | 1829 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 1830 | dev_put(dev); |
3b85875a JB |
1831 | out_rtnl: |
1832 | rtnl_unlock(); | |
1833 | ||
fd5b74dc | 1834 | return err; |
5727ef1b JB |
1835 | } |
1836 | ||
1837 | /* | |
c258d2de | 1838 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 1839 | */ |
463d0183 | 1840 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
1841 | struct cfg80211_registered_device *rdev, |
1842 | struct net_device **vlan) | |
1843 | { | |
463d0183 | 1844 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
1845 | *vlan = NULL; |
1846 | ||
1847 | if (vlanattr) { | |
463d0183 JB |
1848 | *vlan = dev_get_by_index(genl_info_net(info), |
1849 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
1850 | if (!*vlan) |
1851 | return -ENODEV; | |
1852 | if (!(*vlan)->ieee80211_ptr) | |
1853 | return -EINVAL; | |
1854 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1855 | return -EINVAL; | |
c258d2de FF |
1856 | if (!netif_running(*vlan)) |
1857 | return -ENETDOWN; | |
5727ef1b JB |
1858 | } |
1859 | return 0; | |
1860 | } | |
1861 | ||
1862 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1863 | { | |
79c97e97 | 1864 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1865 | int err; |
1866 | struct net_device *dev; | |
1867 | struct station_parameters params; | |
1868 | u8 *mac_addr = NULL; | |
1869 | ||
1870 | memset(¶ms, 0, sizeof(params)); | |
1871 | ||
1872 | params.listen_interval = -1; | |
1873 | ||
1874 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1875 | return -EINVAL; | |
1876 | ||
1877 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1878 | return -EINVAL; | |
1879 | ||
1880 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1881 | ||
1882 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1883 | params.supported_rates = | |
1884 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1885 | params.supported_rates_len = | |
1886 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1887 | } | |
1888 | ||
1889 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1890 | params.listen_interval = | |
1891 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1892 | ||
36aedc90 JM |
1893 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1894 | params.ht_capa = | |
1895 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1896 | ||
eccb8e8f | 1897 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1898 | return -EINVAL; |
1899 | ||
2ec600d6 LCC |
1900 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1901 | params.plink_action = | |
1902 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1903 | ||
3b85875a JB |
1904 | rtnl_lock(); |
1905 | ||
463d0183 | 1906 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 1907 | if (err) |
3b85875a | 1908 | goto out_rtnl; |
5727ef1b | 1909 | |
463d0183 | 1910 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 1911 | if (err) |
034d655e | 1912 | goto out; |
a97f4424 JB |
1913 | |
1914 | /* validate settings */ | |
1915 | err = 0; | |
1916 | ||
1917 | switch (dev->ieee80211_ptr->iftype) { | |
1918 | case NL80211_IFTYPE_AP: | |
1919 | case NL80211_IFTYPE_AP_VLAN: | |
1920 | /* disallow mesh-specific things */ | |
1921 | if (params.plink_action) | |
1922 | err = -EINVAL; | |
1923 | break; | |
1924 | case NL80211_IFTYPE_STATION: | |
1925 | /* disallow everything but AUTHORIZED flag */ | |
1926 | if (params.plink_action) | |
1927 | err = -EINVAL; | |
1928 | if (params.vlan) | |
1929 | err = -EINVAL; | |
1930 | if (params.supported_rates) | |
1931 | err = -EINVAL; | |
1932 | if (params.ht_capa) | |
1933 | err = -EINVAL; | |
1934 | if (params.listen_interval >= 0) | |
1935 | err = -EINVAL; | |
1936 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1937 | err = -EINVAL; | |
1938 | break; | |
1939 | case NL80211_IFTYPE_MESH_POINT: | |
1940 | /* disallow things mesh doesn't support */ | |
1941 | if (params.vlan) | |
1942 | err = -EINVAL; | |
1943 | if (params.ht_capa) | |
1944 | err = -EINVAL; | |
1945 | if (params.listen_interval >= 0) | |
1946 | err = -EINVAL; | |
1947 | if (params.supported_rates) | |
1948 | err = -EINVAL; | |
1949 | if (params.sta_flags_mask) | |
1950 | err = -EINVAL; | |
1951 | break; | |
1952 | default: | |
1953 | err = -EINVAL; | |
034d655e JB |
1954 | } |
1955 | ||
5727ef1b JB |
1956 | if (err) |
1957 | goto out; | |
1958 | ||
79c97e97 | 1959 | if (!rdev->ops->change_station) { |
5727ef1b JB |
1960 | err = -EOPNOTSUPP; |
1961 | goto out; | |
1962 | } | |
1963 | ||
79c97e97 | 1964 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
1965 | |
1966 | out: | |
1967 | if (params.vlan) | |
1968 | dev_put(params.vlan); | |
79c97e97 | 1969 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 1970 | dev_put(dev); |
3b85875a JB |
1971 | out_rtnl: |
1972 | rtnl_unlock(); | |
1973 | ||
5727ef1b JB |
1974 | return err; |
1975 | } | |
1976 | ||
1977 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
1978 | { | |
79c97e97 | 1979 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1980 | int err; |
1981 | struct net_device *dev; | |
1982 | struct station_parameters params; | |
1983 | u8 *mac_addr = NULL; | |
1984 | ||
1985 | memset(¶ms, 0, sizeof(params)); | |
1986 | ||
1987 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1988 | return -EINVAL; | |
1989 | ||
5727ef1b JB |
1990 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
1991 | return -EINVAL; | |
1992 | ||
1993 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
1994 | return -EINVAL; | |
1995 | ||
1996 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1997 | params.supported_rates = | |
1998 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1999 | params.supported_rates_len = | |
2000 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2001 | params.listen_interval = | |
2002 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2003 | |
a97f4424 JB |
2004 | if (info->attrs[NL80211_ATTR_STA_AID]) { |
2005 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); | |
2006 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2007 | return -EINVAL; | |
2008 | } | |
51b50fbe | 2009 | |
36aedc90 JM |
2010 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2011 | params.ht_capa = | |
2012 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2013 | |
eccb8e8f | 2014 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2015 | return -EINVAL; |
2016 | ||
3b85875a JB |
2017 | rtnl_lock(); |
2018 | ||
463d0183 | 2019 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2020 | if (err) |
3b85875a | 2021 | goto out_rtnl; |
5727ef1b | 2022 | |
463d0183 | 2023 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2024 | if (err) |
e80cf853 | 2025 | goto out; |
a97f4424 JB |
2026 | |
2027 | /* validate settings */ | |
2028 | err = 0; | |
2029 | ||
2030 | switch (dev->ieee80211_ptr->iftype) { | |
2031 | case NL80211_IFTYPE_AP: | |
2032 | case NL80211_IFTYPE_AP_VLAN: | |
2033 | /* all ok but must have AID */ | |
2034 | if (!params.aid) | |
2035 | err = -EINVAL; | |
2036 | break; | |
2037 | case NL80211_IFTYPE_MESH_POINT: | |
2038 | /* disallow things mesh doesn't support */ | |
2039 | if (params.vlan) | |
2040 | err = -EINVAL; | |
2041 | if (params.aid) | |
2042 | err = -EINVAL; | |
2043 | if (params.ht_capa) | |
2044 | err = -EINVAL; | |
2045 | if (params.listen_interval >= 0) | |
2046 | err = -EINVAL; | |
2047 | if (params.supported_rates) | |
2048 | err = -EINVAL; | |
2049 | if (params.sta_flags_mask) | |
2050 | err = -EINVAL; | |
2051 | break; | |
2052 | default: | |
2053 | err = -EINVAL; | |
e80cf853 JB |
2054 | } |
2055 | ||
5727ef1b JB |
2056 | if (err) |
2057 | goto out; | |
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 && |
155cc9e4 AY |
2099 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
2100 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
2101 | err = -EINVAL; |
2102 | goto out; | |
2103 | } | |
2104 | ||
79c97e97 | 2105 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2106 | err = -EOPNOTSUPP; |
2107 | goto out; | |
2108 | } | |
2109 | ||
79c97e97 | 2110 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2111 | |
2112 | out: | |
79c97e97 | 2113 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2114 | dev_put(dev); |
3b85875a JB |
2115 | out_rtnl: |
2116 | rtnl_unlock(); | |
2117 | ||
5727ef1b JB |
2118 | return err; |
2119 | } | |
2120 | ||
2ec600d6 LCC |
2121 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2122 | int flags, struct net_device *dev, | |
2123 | u8 *dst, u8 *next_hop, | |
2124 | struct mpath_info *pinfo) | |
2125 | { | |
2126 | void *hdr; | |
2127 | struct nlattr *pinfoattr; | |
2128 | ||
2129 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2130 | if (!hdr) | |
2131 | return -1; | |
2132 | ||
2133 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2134 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2135 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2136 | ||
f5ea9120 JB |
2137 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2138 | ||
2ec600d6 LCC |
2139 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2140 | if (!pinfoattr) | |
2141 | goto nla_put_failure; | |
2142 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2143 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2144 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2145 | if (pinfo->filled & MPATH_INFO_SN) |
2146 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2147 | pinfo->sn); | |
2ec600d6 LCC |
2148 | if (pinfo->filled & MPATH_INFO_METRIC) |
2149 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2150 | pinfo->metric); | |
2151 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2152 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2153 | pinfo->exptime); | |
2154 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2155 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2156 | pinfo->flags); | |
2157 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2158 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2159 | pinfo->discovery_timeout); | |
2160 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2161 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2162 | pinfo->discovery_retries); | |
2163 | ||
2164 | nla_nest_end(msg, pinfoattr); | |
2165 | ||
2166 | return genlmsg_end(msg, hdr); | |
2167 | ||
2168 | nla_put_failure: | |
bc3ed28c TG |
2169 | genlmsg_cancel(msg, hdr); |
2170 | return -EMSGSIZE; | |
2ec600d6 LCC |
2171 | } |
2172 | ||
2173 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2174 | struct netlink_callback *cb) |
2ec600d6 | 2175 | { |
2ec600d6 LCC |
2176 | struct mpath_info pinfo; |
2177 | struct cfg80211_registered_device *dev; | |
bba95fef | 2178 | struct net_device *netdev; |
2ec600d6 LCC |
2179 | u8 dst[ETH_ALEN]; |
2180 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2181 | int ifidx = cb->args[0]; |
2182 | int path_idx = cb->args[1]; | |
2ec600d6 | 2183 | int err; |
2ec600d6 | 2184 | |
a043897a HS |
2185 | if (!ifidx) |
2186 | ifidx = nl80211_get_ifidx(cb); | |
2187 | if (ifidx < 0) | |
2188 | return ifidx; | |
bba95fef | 2189 | |
3b85875a JB |
2190 | rtnl_lock(); |
2191 | ||
463d0183 | 2192 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2193 | if (!netdev) { |
2194 | err = -ENODEV; | |
2195 | goto out_rtnl; | |
2196 | } | |
bba95fef | 2197 | |
463d0183 | 2198 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2199 | if (IS_ERR(dev)) { |
2200 | err = PTR_ERR(dev); | |
3b85875a | 2201 | goto out_rtnl; |
bba95fef JB |
2202 | } |
2203 | ||
2204 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2205 | err = -EOPNOTSUPP; |
bba95fef JB |
2206 | goto out_err; |
2207 | } | |
2208 | ||
eec60b03 JM |
2209 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2210 | err = -EOPNOTSUPP; | |
0448b5fc | 2211 | goto out_err; |
eec60b03 JM |
2212 | } |
2213 | ||
bba95fef JB |
2214 | while (1) { |
2215 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2216 | dst, next_hop, &pinfo); | |
2217 | if (err == -ENOENT) | |
2ec600d6 | 2218 | break; |
bba95fef | 2219 | if (err) |
3b85875a | 2220 | goto out_err; |
2ec600d6 | 2221 | |
bba95fef JB |
2222 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2223 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2224 | netdev, dst, next_hop, | |
2225 | &pinfo) < 0) | |
2226 | goto out; | |
2ec600d6 | 2227 | |
bba95fef | 2228 | path_idx++; |
2ec600d6 | 2229 | } |
2ec600d6 | 2230 | |
2ec600d6 | 2231 | |
bba95fef JB |
2232 | out: |
2233 | cb->args[1] = path_idx; | |
2234 | err = skb->len; | |
bba95fef | 2235 | out_err: |
4d0c8aea | 2236 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2237 | out_rtnl: |
2238 | rtnl_unlock(); | |
bba95fef JB |
2239 | |
2240 | return err; | |
2ec600d6 LCC |
2241 | } |
2242 | ||
2243 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2244 | { | |
79c97e97 | 2245 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2246 | int err; |
2247 | struct net_device *dev; | |
2248 | struct mpath_info pinfo; | |
2249 | struct sk_buff *msg; | |
2250 | u8 *dst = NULL; | |
2251 | u8 next_hop[ETH_ALEN]; | |
2252 | ||
2253 | memset(&pinfo, 0, sizeof(pinfo)); | |
2254 | ||
2255 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2256 | return -EINVAL; | |
2257 | ||
2258 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2259 | ||
3b85875a JB |
2260 | rtnl_lock(); |
2261 | ||
463d0183 | 2262 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2263 | if (err) |
3b85875a | 2264 | goto out_rtnl; |
2ec600d6 | 2265 | |
79c97e97 | 2266 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2267 | err = -EOPNOTSUPP; |
2268 | goto out; | |
2269 | } | |
2270 | ||
eec60b03 JM |
2271 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2272 | err = -EOPNOTSUPP; | |
2273 | goto out; | |
2274 | } | |
2275 | ||
79c97e97 | 2276 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2277 | if (err) |
2278 | goto out; | |
2279 | ||
fd2120ca | 2280 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2281 | if (!msg) |
2282 | goto out; | |
2283 | ||
2284 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2285 | dev, dst, next_hop, &pinfo) < 0) | |
2286 | goto out_free; | |
2287 | ||
134e6375 | 2288 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2289 | goto out; |
2290 | ||
2291 | out_free: | |
2292 | nlmsg_free(msg); | |
2ec600d6 | 2293 | out: |
79c97e97 | 2294 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2295 | dev_put(dev); |
3b85875a JB |
2296 | out_rtnl: |
2297 | rtnl_unlock(); | |
2298 | ||
2ec600d6 LCC |
2299 | return err; |
2300 | } | |
2301 | ||
2302 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2303 | { | |
79c97e97 | 2304 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2305 | int err; |
2306 | struct net_device *dev; | |
2307 | u8 *dst = NULL; | |
2308 | u8 *next_hop = NULL; | |
2309 | ||
2310 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2311 | return -EINVAL; | |
2312 | ||
2313 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2314 | return -EINVAL; | |
2315 | ||
2316 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2317 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2318 | ||
3b85875a JB |
2319 | rtnl_lock(); |
2320 | ||
463d0183 | 2321 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2322 | if (err) |
3b85875a | 2323 | goto out_rtnl; |
2ec600d6 | 2324 | |
79c97e97 | 2325 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2326 | err = -EOPNOTSUPP; |
2327 | goto out; | |
2328 | } | |
2329 | ||
eec60b03 JM |
2330 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2331 | err = -EOPNOTSUPP; | |
2332 | goto out; | |
2333 | } | |
2334 | ||
35a8efe1 JM |
2335 | if (!netif_running(dev)) { |
2336 | err = -ENETDOWN; | |
2337 | goto out; | |
2338 | } | |
2339 | ||
79c97e97 | 2340 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2341 | |
2342 | out: | |
79c97e97 | 2343 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2344 | dev_put(dev); |
3b85875a JB |
2345 | out_rtnl: |
2346 | rtnl_unlock(); | |
2347 | ||
2ec600d6 LCC |
2348 | return err; |
2349 | } | |
2350 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2351 | { | |
79c97e97 | 2352 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2353 | int err; |
2354 | struct net_device *dev; | |
2355 | u8 *dst = NULL; | |
2356 | u8 *next_hop = NULL; | |
2357 | ||
2358 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2359 | return -EINVAL; | |
2360 | ||
2361 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2362 | return -EINVAL; | |
2363 | ||
2364 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2365 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2366 | ||
3b85875a JB |
2367 | rtnl_lock(); |
2368 | ||
463d0183 | 2369 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2370 | if (err) |
3b85875a | 2371 | goto out_rtnl; |
2ec600d6 | 2372 | |
79c97e97 | 2373 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2374 | err = -EOPNOTSUPP; |
2375 | goto out; | |
2376 | } | |
2377 | ||
eec60b03 JM |
2378 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2379 | err = -EOPNOTSUPP; | |
2380 | goto out; | |
2381 | } | |
2382 | ||
35a8efe1 JM |
2383 | if (!netif_running(dev)) { |
2384 | err = -ENETDOWN; | |
2385 | goto out; | |
2386 | } | |
2387 | ||
79c97e97 | 2388 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2389 | |
2390 | out: | |
79c97e97 | 2391 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2392 | dev_put(dev); |
3b85875a JB |
2393 | out_rtnl: |
2394 | rtnl_unlock(); | |
2395 | ||
2ec600d6 LCC |
2396 | return err; |
2397 | } | |
2398 | ||
2399 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2400 | { | |
79c97e97 | 2401 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2402 | int err; |
2403 | struct net_device *dev; | |
2404 | u8 *dst = NULL; | |
2405 | ||
2406 | if (info->attrs[NL80211_ATTR_MAC]) | |
2407 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2408 | ||
3b85875a JB |
2409 | rtnl_lock(); |
2410 | ||
463d0183 | 2411 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2412 | if (err) |
3b85875a | 2413 | goto out_rtnl; |
2ec600d6 | 2414 | |
79c97e97 | 2415 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2416 | err = -EOPNOTSUPP; |
2417 | goto out; | |
2418 | } | |
2419 | ||
79c97e97 | 2420 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2421 | |
2422 | out: | |
79c97e97 | 2423 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2424 | dev_put(dev); |
3b85875a JB |
2425 | out_rtnl: |
2426 | rtnl_unlock(); | |
2427 | ||
2ec600d6 LCC |
2428 | return err; |
2429 | } | |
2430 | ||
9f1ba906 JM |
2431 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2432 | { | |
79c97e97 | 2433 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2434 | int err; |
2435 | struct net_device *dev; | |
2436 | struct bss_parameters params; | |
2437 | ||
2438 | memset(¶ms, 0, sizeof(params)); | |
2439 | /* default to not changing parameters */ | |
2440 | params.use_cts_prot = -1; | |
2441 | params.use_short_preamble = -1; | |
2442 | params.use_short_slot_time = -1; | |
2443 | ||
2444 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2445 | params.use_cts_prot = | |
2446 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2447 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2448 | params.use_short_preamble = | |
2449 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2450 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2451 | params.use_short_slot_time = | |
2452 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2453 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2454 | params.basic_rates = | |
2455 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2456 | params.basic_rates_len = | |
2457 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2458 | } | |
9f1ba906 | 2459 | |
3b85875a JB |
2460 | rtnl_lock(); |
2461 | ||
463d0183 | 2462 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
9f1ba906 | 2463 | if (err) |
3b85875a | 2464 | goto out_rtnl; |
9f1ba906 | 2465 | |
79c97e97 | 2466 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2467 | err = -EOPNOTSUPP; |
2468 | goto out; | |
2469 | } | |
2470 | ||
eec60b03 JM |
2471 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2472 | err = -EOPNOTSUPP; | |
2473 | goto out; | |
2474 | } | |
2475 | ||
79c97e97 | 2476 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2477 | |
2478 | out: | |
79c97e97 | 2479 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2480 | dev_put(dev); |
3b85875a JB |
2481 | out_rtnl: |
2482 | rtnl_unlock(); | |
2483 | ||
9f1ba906 JM |
2484 | return err; |
2485 | } | |
2486 | ||
b2e1b302 LR |
2487 | static const struct nla_policy |
2488 | reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { | |
2489 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, | |
2490 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2491 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2492 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2493 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2494 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2495 | }; | |
2496 | ||
2497 | static int parse_reg_rule(struct nlattr *tb[], | |
2498 | struct ieee80211_reg_rule *reg_rule) | |
2499 | { | |
2500 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2501 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2502 | ||
2503 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2504 | return -EINVAL; | |
2505 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2506 | return -EINVAL; | |
2507 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2508 | return -EINVAL; | |
2509 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2510 | return -EINVAL; | |
2511 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2512 | return -EINVAL; | |
2513 | ||
2514 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2515 | ||
2516 | freq_range->start_freq_khz = | |
2517 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2518 | freq_range->end_freq_khz = | |
2519 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2520 | freq_range->max_bandwidth_khz = | |
2521 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2522 | ||
2523 | power_rule->max_eirp = | |
2524 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2525 | ||
2526 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2527 | power_rule->max_antenna_gain = | |
2528 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2529 | ||
2530 | return 0; | |
2531 | } | |
2532 | ||
2533 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2534 | { | |
2535 | int r; | |
2536 | char *data = NULL; | |
2537 | ||
80778f18 LR |
2538 | /* |
2539 | * You should only get this when cfg80211 hasn't yet initialized | |
2540 | * completely when built-in to the kernel right between the time | |
2541 | * window between nl80211_init() and regulatory_init(), if that is | |
2542 | * even possible. | |
2543 | */ | |
2544 | mutex_lock(&cfg80211_mutex); | |
2545 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2546 | mutex_unlock(&cfg80211_mutex); |
2547 | return -EINPROGRESS; | |
80778f18 | 2548 | } |
fe33eb39 | 2549 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2550 | |
fe33eb39 LR |
2551 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2552 | return -EINVAL; | |
b2e1b302 LR |
2553 | |
2554 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2555 | ||
fe33eb39 LR |
2556 | r = regulatory_hint_user(data); |
2557 | ||
b2e1b302 LR |
2558 | return r; |
2559 | } | |
2560 | ||
93da9cc1 | 2561 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2562 | struct genl_info *info) | |
2563 | { | |
79c97e97 | 2564 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2565 | struct mesh_config cur_params; |
2566 | int err; | |
2567 | struct net_device *dev; | |
2568 | void *hdr; | |
2569 | struct nlattr *pinfoattr; | |
2570 | struct sk_buff *msg; | |
2571 | ||
3b85875a JB |
2572 | rtnl_lock(); |
2573 | ||
93da9cc1 | 2574 | /* Look up our device */ |
463d0183 | 2575 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2576 | if (err) |
3b85875a | 2577 | goto out_rtnl; |
93da9cc1 | 2578 | |
79c97e97 | 2579 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2580 | err = -EOPNOTSUPP; |
2581 | goto out; | |
2582 | } | |
2583 | ||
93da9cc1 | 2584 | /* Get the mesh params */ |
79c97e97 | 2585 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2586 | if (err) |
2587 | goto out; | |
2588 | ||
2589 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2590 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2591 | if (!msg) { |
2592 | err = -ENOBUFS; | |
2593 | goto out; | |
2594 | } | |
2595 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2596 | NL80211_CMD_GET_MESH_PARAMS); | |
2597 | if (!hdr) | |
2598 | goto nla_put_failure; | |
2599 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2600 | if (!pinfoattr) | |
2601 | goto nla_put_failure; | |
2602 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2603 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2604 | cur_params.dot11MeshRetryTimeout); | |
2605 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2606 | cur_params.dot11MeshConfirmTimeout); | |
2607 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2608 | cur_params.dot11MeshHoldingTimeout); | |
2609 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2610 | cur_params.dot11MeshMaxPeerLinks); | |
2611 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2612 | cur_params.dot11MeshMaxRetries); | |
2613 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2614 | cur_params.dot11MeshTTL); | |
2615 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2616 | cur_params.auto_open_plinks); | |
2617 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2618 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2619 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2620 | cur_params.path_refresh_time); | |
2621 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2622 | cur_params.min_discovery_timeout); | |
2623 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2624 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2625 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2626 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2627 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2628 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2629 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2630 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2631 | nla_nest_end(msg, pinfoattr); |
2632 | genlmsg_end(msg, hdr); | |
134e6375 | 2633 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2634 | goto out; |
2635 | ||
3b85875a | 2636 | nla_put_failure: |
93da9cc1 | 2637 | genlmsg_cancel(msg, hdr); |
2638 | err = -EMSGSIZE; | |
3b85875a | 2639 | out: |
93da9cc1 | 2640 | /* Cleanup */ |
79c97e97 | 2641 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2642 | dev_put(dev); |
3b85875a JB |
2643 | out_rtnl: |
2644 | rtnl_unlock(); | |
2645 | ||
93da9cc1 | 2646 | return err; |
2647 | } | |
2648 | ||
2649 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2650 | do {\ | |
2651 | if (table[attr_num]) {\ | |
2652 | cfg.param = nla_fn(table[attr_num]); \ | |
2653 | mask |= (1 << (attr_num - 1)); \ | |
2654 | } \ | |
2655 | } while (0);\ | |
2656 | ||
2657 | static struct nla_policy | |
2658 | nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] __read_mostly = { | |
2659 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, | |
2660 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2661 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2662 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2663 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2664 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2665 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2666 | ||
2667 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2668 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2669 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2670 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2671 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2672 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2673 | }; | |
2674 | ||
2675 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2676 | { | |
2677 | int err; | |
2678 | u32 mask; | |
79c97e97 | 2679 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2680 | struct net_device *dev; |
2681 | struct mesh_config cfg; | |
2682 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2683 | struct nlattr *parent_attr; | |
2684 | ||
2685 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2686 | if (!parent_attr) | |
2687 | return -EINVAL; | |
2688 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2689 | parent_attr, nl80211_meshconf_params_policy)) | |
2690 | return -EINVAL; | |
2691 | ||
3b85875a JB |
2692 | rtnl_lock(); |
2693 | ||
463d0183 | 2694 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2695 | if (err) |
3b85875a | 2696 | goto out_rtnl; |
93da9cc1 | 2697 | |
79c97e97 | 2698 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2699 | err = -EOPNOTSUPP; |
2700 | goto out; | |
2701 | } | |
2702 | ||
93da9cc1 | 2703 | /* This makes sure that there aren't more than 32 mesh config |
2704 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2705 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2706 | ||
2707 | /* Fill in the params struct */ | |
2708 | mask = 0; | |
2709 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2710 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2711 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2712 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2713 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2714 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2715 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2716 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2717 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2718 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2719 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2720 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2721 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2722 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2723 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2724 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2725 | nla_get_u8); | |
2726 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2727 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2728 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2729 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2730 | nla_get_u16); | |
2731 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2732 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2733 | nla_get_u32); | |
2734 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2735 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2736 | nla_get_u16); | |
2737 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2738 | dot11MeshHWMPnetDiameterTraversalTime, | |
2739 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2740 | nla_get_u16); | |
63c5723b RP |
2741 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2742 | dot11MeshHWMPRootMode, mask, | |
2743 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2744 | nla_get_u8); | |
93da9cc1 | 2745 | |
2746 | /* Apply changes */ | |
79c97e97 | 2747 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2748 | |
f3f92586 | 2749 | out: |
93da9cc1 | 2750 | /* cleanup */ |
79c97e97 | 2751 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2752 | dev_put(dev); |
3b85875a JB |
2753 | out_rtnl: |
2754 | rtnl_unlock(); | |
2755 | ||
93da9cc1 | 2756 | return err; |
2757 | } | |
2758 | ||
2759 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2760 | ||
f130347c LR |
2761 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2762 | { | |
2763 | struct sk_buff *msg; | |
2764 | void *hdr = NULL; | |
2765 | struct nlattr *nl_reg_rules; | |
2766 | unsigned int i; | |
2767 | int err = -EINVAL; | |
2768 | ||
a1794390 | 2769 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2770 | |
2771 | if (!cfg80211_regdomain) | |
2772 | goto out; | |
2773 | ||
fd2120ca | 2774 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2775 | if (!msg) { |
2776 | err = -ENOBUFS; | |
2777 | goto out; | |
2778 | } | |
2779 | ||
2780 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2781 | NL80211_CMD_GET_REG); | |
2782 | if (!hdr) | |
2783 | goto nla_put_failure; | |
2784 | ||
2785 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2786 | cfg80211_regdomain->alpha2); | |
2787 | ||
2788 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2789 | if (!nl_reg_rules) | |
2790 | goto nla_put_failure; | |
2791 | ||
2792 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2793 | struct nlattr *nl_reg_rule; | |
2794 | const struct ieee80211_reg_rule *reg_rule; | |
2795 | const struct ieee80211_freq_range *freq_range; | |
2796 | const struct ieee80211_power_rule *power_rule; | |
2797 | ||
2798 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2799 | freq_range = ®_rule->freq_range; | |
2800 | power_rule = ®_rule->power_rule; | |
2801 | ||
2802 | nl_reg_rule = nla_nest_start(msg, i); | |
2803 | if (!nl_reg_rule) | |
2804 | goto nla_put_failure; | |
2805 | ||
2806 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2807 | reg_rule->flags); | |
2808 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2809 | freq_range->start_freq_khz); | |
2810 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2811 | freq_range->end_freq_khz); | |
2812 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2813 | freq_range->max_bandwidth_khz); | |
2814 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2815 | power_rule->max_antenna_gain); | |
2816 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2817 | power_rule->max_eirp); | |
2818 | ||
2819 | nla_nest_end(msg, nl_reg_rule); | |
2820 | } | |
2821 | ||
2822 | nla_nest_end(msg, nl_reg_rules); | |
2823 | ||
2824 | genlmsg_end(msg, hdr); | |
134e6375 | 2825 | err = genlmsg_reply(msg, info); |
f130347c LR |
2826 | goto out; |
2827 | ||
2828 | nla_put_failure: | |
2829 | genlmsg_cancel(msg, hdr); | |
2830 | err = -EMSGSIZE; | |
2831 | out: | |
a1794390 | 2832 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2833 | return err; |
2834 | } | |
2835 | ||
b2e1b302 LR |
2836 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2837 | { | |
2838 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2839 | struct nlattr *nl_reg_rule; | |
2840 | char *alpha2 = NULL; | |
2841 | int rem_reg_rules = 0, r = 0; | |
2842 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2843 | struct ieee80211_regdomain *rd = NULL; | |
2844 | ||
2845 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2846 | return -EINVAL; | |
2847 | ||
2848 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2849 | return -EINVAL; | |
2850 | ||
2851 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2852 | ||
2853 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2854 | rem_reg_rules) { | |
2855 | num_rules++; | |
2856 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2857 | return -EINVAL; |
b2e1b302 LR |
2858 | } |
2859 | ||
61405e97 LR |
2860 | mutex_lock(&cfg80211_mutex); |
2861 | ||
d0e18f83 LR |
2862 | if (!reg_is_valid_request(alpha2)) { |
2863 | r = -EINVAL; | |
2864 | goto bad_reg; | |
2865 | } | |
b2e1b302 LR |
2866 | |
2867 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2868 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2869 | ||
2870 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2871 | if (!rd) { |
2872 | r = -ENOMEM; | |
2873 | goto bad_reg; | |
2874 | } | |
b2e1b302 LR |
2875 | |
2876 | rd->n_reg_rules = num_rules; | |
2877 | rd->alpha2[0] = alpha2[0]; | |
2878 | rd->alpha2[1] = alpha2[1]; | |
2879 | ||
2880 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2881 | rem_reg_rules) { | |
2882 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2883 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2884 | reg_rule_policy); | |
2885 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2886 | if (r) | |
2887 | goto bad_reg; | |
2888 | ||
2889 | rule_idx++; | |
2890 | ||
d0e18f83 LR |
2891 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2892 | r = -EINVAL; | |
b2e1b302 | 2893 | goto bad_reg; |
d0e18f83 | 2894 | } |
b2e1b302 LR |
2895 | } |
2896 | ||
2897 | BUG_ON(rule_idx != num_rules); | |
2898 | ||
b2e1b302 | 2899 | r = set_regdom(rd); |
61405e97 | 2900 | |
a1794390 | 2901 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2902 | |
b2e1b302 LR |
2903 | return r; |
2904 | ||
d2372b31 | 2905 | bad_reg: |
61405e97 | 2906 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2907 | kfree(rd); |
d0e18f83 | 2908 | return r; |
b2e1b302 LR |
2909 | } |
2910 | ||
83f5e2cf JB |
2911 | static int validate_scan_freqs(struct nlattr *freqs) |
2912 | { | |
2913 | struct nlattr *attr1, *attr2; | |
2914 | int n_channels = 0, tmp1, tmp2; | |
2915 | ||
2916 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2917 | n_channels++; | |
2918 | /* | |
2919 | * Some hardware has a limited channel list for | |
2920 | * scanning, and it is pretty much nonsensical | |
2921 | * to scan for a channel twice, so disallow that | |
2922 | * and don't require drivers to check that the | |
2923 | * channel list they get isn't longer than what | |
2924 | * they can scan, as long as they can scan all | |
2925 | * the channels they registered at once. | |
2926 | */ | |
2927 | nla_for_each_nested(attr2, freqs, tmp2) | |
2928 | if (attr1 != attr2 && | |
2929 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2930 | return 0; | |
2931 | } | |
2932 | ||
2933 | return n_channels; | |
2934 | } | |
2935 | ||
2a519311 JB |
2936 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2937 | { | |
79c97e97 | 2938 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
2939 | struct net_device *dev; |
2940 | struct cfg80211_scan_request *request; | |
2941 | struct cfg80211_ssid *ssid; | |
2942 | struct ieee80211_channel *channel; | |
2943 | struct nlattr *attr; | |
2944 | struct wiphy *wiphy; | |
83f5e2cf | 2945 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2946 | enum ieee80211_band band; |
70692ad2 | 2947 | size_t ie_len; |
2a519311 | 2948 | |
f4a11bb0 JB |
2949 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2950 | return -EINVAL; | |
2951 | ||
3b85875a JB |
2952 | rtnl_lock(); |
2953 | ||
463d0183 | 2954 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2a519311 | 2955 | if (err) |
3b85875a | 2956 | goto out_rtnl; |
2a519311 | 2957 | |
79c97e97 | 2958 | wiphy = &rdev->wiphy; |
2a519311 | 2959 | |
79c97e97 | 2960 | if (!rdev->ops->scan) { |
2a519311 JB |
2961 | err = -EOPNOTSUPP; |
2962 | goto out; | |
2963 | } | |
2964 | ||
35a8efe1 JM |
2965 | if (!netif_running(dev)) { |
2966 | err = -ENETDOWN; | |
2967 | goto out; | |
2968 | } | |
2969 | ||
79c97e97 | 2970 | if (rdev->scan_req) { |
2a519311 | 2971 | err = -EBUSY; |
3b85875a | 2972 | goto out; |
2a519311 JB |
2973 | } |
2974 | ||
2975 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2976 | n_channels = validate_scan_freqs( |
2977 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
2978 | if (!n_channels) { |
2979 | err = -EINVAL; | |
3b85875a | 2980 | goto out; |
2a519311 JB |
2981 | } |
2982 | } else { | |
83f5e2cf JB |
2983 | n_channels = 0; |
2984 | ||
2a519311 JB |
2985 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2986 | if (wiphy->bands[band]) | |
2987 | n_channels += wiphy->bands[band]->n_channels; | |
2988 | } | |
2989 | ||
2990 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2991 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2992 | n_ssids++; | |
2993 | ||
2994 | if (n_ssids > wiphy->max_scan_ssids) { | |
2995 | err = -EINVAL; | |
3b85875a | 2996 | goto out; |
2a519311 JB |
2997 | } |
2998 | ||
70692ad2 JM |
2999 | if (info->attrs[NL80211_ATTR_IE]) |
3000 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3001 | else | |
3002 | ie_len = 0; | |
3003 | ||
18a83659 JB |
3004 | if (ie_len > wiphy->max_scan_ie_len) { |
3005 | err = -EINVAL; | |
3006 | goto out; | |
3007 | } | |
3008 | ||
2a519311 JB |
3009 | request = kzalloc(sizeof(*request) |
3010 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3011 | + sizeof(channel) * n_channels |
3012 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3013 | if (!request) { |
3014 | err = -ENOMEM; | |
3b85875a | 3015 | goto out; |
2a519311 JB |
3016 | } |
3017 | ||
2a519311 | 3018 | if (n_ssids) |
5ba63533 | 3019 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3020 | request->n_ssids = n_ssids; |
70692ad2 JM |
3021 | if (ie_len) { |
3022 | if (request->ssids) | |
3023 | request->ie = (void *)(request->ssids + n_ssids); | |
3024 | else | |
3025 | request->ie = (void *)(request->channels + n_channels); | |
3026 | } | |
2a519311 | 3027 | |
584991dc | 3028 | i = 0; |
2a519311 JB |
3029 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3030 | /* user specified, bail out if channel not found */ | |
2a519311 | 3031 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3032 | struct ieee80211_channel *chan; |
3033 | ||
3034 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3035 | ||
3036 | if (!chan) { | |
2a519311 JB |
3037 | err = -EINVAL; |
3038 | goto out_free; | |
3039 | } | |
584991dc JB |
3040 | |
3041 | /* ignore disabled channels */ | |
3042 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3043 | continue; | |
3044 | ||
3045 | request->channels[i] = chan; | |
2a519311 JB |
3046 | i++; |
3047 | } | |
3048 | } else { | |
3049 | /* all channels */ | |
2a519311 JB |
3050 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3051 | int j; | |
3052 | if (!wiphy->bands[band]) | |
3053 | continue; | |
3054 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3055 | struct ieee80211_channel *chan; |
3056 | ||
3057 | chan = &wiphy->bands[band]->channels[j]; | |
3058 | ||
3059 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3060 | continue; | |
3061 | ||
3062 | request->channels[i] = chan; | |
2a519311 JB |
3063 | i++; |
3064 | } | |
3065 | } | |
3066 | } | |
3067 | ||
584991dc JB |
3068 | if (!i) { |
3069 | err = -EINVAL; | |
3070 | goto out_free; | |
3071 | } | |
3072 | ||
3073 | request->n_channels = i; | |
3074 | ||
2a519311 JB |
3075 | i = 0; |
3076 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3077 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3078 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3079 | err = -EINVAL; | |
3080 | goto out_free; | |
3081 | } | |
3082 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3083 | request->ssids[i].ssid_len = nla_len(attr); | |
3084 | i++; | |
3085 | } | |
3086 | } | |
3087 | ||
70692ad2 JM |
3088 | if (info->attrs[NL80211_ATTR_IE]) { |
3089 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3090 | memcpy((void *)request->ie, |
3091 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3092 | request->ie_len); |
3093 | } | |
3094 | ||
463d0183 | 3095 | request->dev = dev; |
79c97e97 | 3096 | request->wiphy = &rdev->wiphy; |
2a519311 | 3097 | |
79c97e97 JB |
3098 | rdev->scan_req = request; |
3099 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3100 | |
463d0183 | 3101 | if (!err) { |
79c97e97 | 3102 | nl80211_send_scan_start(rdev, dev); |
463d0183 JB |
3103 | dev_hold(dev); |
3104 | } | |
a538e2d5 | 3105 | |
2a519311 JB |
3106 | out_free: |
3107 | if (err) { | |
79c97e97 | 3108 | rdev->scan_req = NULL; |
2a519311 JB |
3109 | kfree(request); |
3110 | } | |
2a519311 | 3111 | out: |
79c97e97 | 3112 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3113 | dev_put(dev); |
3b85875a JB |
3114 | out_rtnl: |
3115 | rtnl_unlock(); | |
3116 | ||
2a519311 JB |
3117 | return err; |
3118 | } | |
3119 | ||
3120 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3121 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3122 | struct wireless_dev *wdev, |
3123 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3124 | { |
48ab905d | 3125 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3126 | void *hdr; |
3127 | struct nlattr *bss; | |
48ab905d JB |
3128 | int i; |
3129 | ||
3130 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3131 | |
3132 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3133 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3134 | if (!hdr) | |
3135 | return -1; | |
3136 | ||
f5ea9120 | 3137 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3138 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3139 | |
3140 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3141 | if (!bss) | |
3142 | goto nla_put_failure; | |
3143 | if (!is_zero_ether_addr(res->bssid)) | |
3144 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3145 | if (res->information_elements && res->len_information_elements) | |
3146 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3147 | res->len_information_elements, | |
3148 | res->information_elements); | |
3149 | if (res->tsf) | |
3150 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3151 | if (res->beacon_interval) | |
3152 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3153 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3154 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3155 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3156 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3157 | |
77965c97 | 3158 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3159 | case CFG80211_SIGNAL_TYPE_MBM: |
3160 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3161 | break; | |
3162 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3163 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3164 | break; | |
3165 | default: | |
3166 | break; | |
3167 | } | |
3168 | ||
48ab905d JB |
3169 | switch (wdev->iftype) { |
3170 | case NL80211_IFTYPE_STATION: | |
3171 | if (intbss == wdev->current_bss) | |
3172 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3173 | NL80211_BSS_STATUS_ASSOCIATED); | |
3174 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3175 | if (intbss != wdev->auth_bsses[i]) | |
3176 | continue; | |
3177 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3178 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3179 | break; | |
3180 | } | |
3181 | break; | |
3182 | case NL80211_IFTYPE_ADHOC: | |
3183 | if (intbss == wdev->current_bss) | |
3184 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3185 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3186 | break; | |
3187 | default: | |
3188 | break; | |
3189 | } | |
3190 | ||
2a519311 JB |
3191 | nla_nest_end(msg, bss); |
3192 | ||
3193 | return genlmsg_end(msg, hdr); | |
3194 | ||
3195 | nla_put_failure: | |
3196 | genlmsg_cancel(msg, hdr); | |
3197 | return -EMSGSIZE; | |
3198 | } | |
3199 | ||
3200 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3201 | struct netlink_callback *cb) | |
3202 | { | |
48ab905d JB |
3203 | struct cfg80211_registered_device *rdev; |
3204 | struct net_device *dev; | |
2a519311 | 3205 | struct cfg80211_internal_bss *scan; |
48ab905d | 3206 | struct wireless_dev *wdev; |
2a519311 JB |
3207 | int ifidx = cb->args[0]; |
3208 | int start = cb->args[1], idx = 0; | |
3209 | int err; | |
3210 | ||
a043897a HS |
3211 | if (!ifidx) |
3212 | ifidx = nl80211_get_ifidx(cb); | |
3213 | if (ifidx < 0) | |
3214 | return ifidx; | |
3215 | cb->args[0] = ifidx; | |
2a519311 | 3216 | |
463d0183 | 3217 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3218 | if (!dev) |
2a519311 JB |
3219 | return -ENODEV; |
3220 | ||
463d0183 | 3221 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3222 | if (IS_ERR(rdev)) { |
3223 | err = PTR_ERR(rdev); | |
2a519311 JB |
3224 | goto out_put_netdev; |
3225 | } | |
3226 | ||
48ab905d | 3227 | wdev = dev->ieee80211_ptr; |
2a519311 | 3228 | |
48ab905d JB |
3229 | wdev_lock(wdev); |
3230 | spin_lock_bh(&rdev->bss_lock); | |
3231 | cfg80211_bss_expire(rdev); | |
3232 | ||
3233 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3234 | if (++idx <= start) |
3235 | continue; | |
3236 | if (nl80211_send_bss(skb, | |
3237 | NETLINK_CB(cb->skb).pid, | |
3238 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3239 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3240 | idx--; |
3241 | goto out; | |
3242 | } | |
3243 | } | |
3244 | ||
3245 | out: | |
48ab905d JB |
3246 | spin_unlock_bh(&rdev->bss_lock); |
3247 | wdev_unlock(wdev); | |
2a519311 JB |
3248 | |
3249 | cb->args[1] = idx; | |
3250 | err = skb->len; | |
48ab905d | 3251 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3252 | out_put_netdev: |
48ab905d | 3253 | dev_put(dev); |
2a519311 JB |
3254 | |
3255 | return err; | |
3256 | } | |
3257 | ||
61fa713c HS |
3258 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3259 | int flags, struct net_device *dev, | |
3260 | struct survey_info *survey) | |
3261 | { | |
3262 | void *hdr; | |
3263 | struct nlattr *infoattr; | |
3264 | ||
3265 | /* Survey without a channel doesn't make sense */ | |
3266 | if (!survey->channel) | |
3267 | return -EINVAL; | |
3268 | ||
3269 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3270 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3271 | if (!hdr) | |
3272 | return -ENOMEM; | |
3273 | ||
3274 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3275 | ||
3276 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3277 | if (!infoattr) | |
3278 | goto nla_put_failure; | |
3279 | ||
3280 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3281 | survey->channel->center_freq); | |
3282 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3283 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3284 | survey->noise); | |
3285 | ||
3286 | nla_nest_end(msg, infoattr); | |
3287 | ||
3288 | return genlmsg_end(msg, hdr); | |
3289 | ||
3290 | nla_put_failure: | |
3291 | genlmsg_cancel(msg, hdr); | |
3292 | return -EMSGSIZE; | |
3293 | } | |
3294 | ||
3295 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3296 | struct netlink_callback *cb) | |
3297 | { | |
3298 | struct survey_info survey; | |
3299 | struct cfg80211_registered_device *dev; | |
3300 | struct net_device *netdev; | |
3301 | int ifidx = cb->args[0]; | |
3302 | int survey_idx = cb->args[1]; | |
3303 | int res; | |
3304 | ||
3305 | if (!ifidx) | |
3306 | ifidx = nl80211_get_ifidx(cb); | |
3307 | if (ifidx < 0) | |
3308 | return ifidx; | |
3309 | cb->args[0] = ifidx; | |
3310 | ||
3311 | rtnl_lock(); | |
3312 | ||
3313 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3314 | if (!netdev) { | |
3315 | res = -ENODEV; | |
3316 | goto out_rtnl; | |
3317 | } | |
3318 | ||
3319 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3320 | if (IS_ERR(dev)) { | |
3321 | res = PTR_ERR(dev); | |
3322 | goto out_rtnl; | |
3323 | } | |
3324 | ||
3325 | if (!dev->ops->dump_survey) { | |
3326 | res = -EOPNOTSUPP; | |
3327 | goto out_err; | |
3328 | } | |
3329 | ||
3330 | while (1) { | |
3331 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3332 | &survey); | |
3333 | if (res == -ENOENT) | |
3334 | break; | |
3335 | if (res) | |
3336 | goto out_err; | |
3337 | ||
3338 | if (nl80211_send_survey(skb, | |
3339 | NETLINK_CB(cb->skb).pid, | |
3340 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3341 | netdev, | |
3342 | &survey) < 0) | |
3343 | goto out; | |
3344 | survey_idx++; | |
3345 | } | |
3346 | ||
3347 | out: | |
3348 | cb->args[1] = survey_idx; | |
3349 | res = skb->len; | |
3350 | out_err: | |
3351 | cfg80211_unlock_rdev(dev); | |
3352 | out_rtnl: | |
3353 | rtnl_unlock(); | |
3354 | ||
3355 | return res; | |
3356 | } | |
3357 | ||
255e737e JM |
3358 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3359 | { | |
b23aa676 SO |
3360 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3361 | } | |
3362 | ||
3363 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3364 | { | |
3365 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3366 | NL80211_WPA_VERSION_2)); | |
3367 | } | |
3368 | ||
3369 | static bool nl80211_valid_akm_suite(u32 akm) | |
3370 | { | |
3371 | return akm == WLAN_AKM_SUITE_8021X || | |
3372 | akm == WLAN_AKM_SUITE_PSK; | |
3373 | } | |
3374 | ||
3375 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3376 | { | |
3377 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3378 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3379 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3380 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3381 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3382 | } |
3383 | ||
b23aa676 | 3384 | |
636a5d36 JM |
3385 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3386 | { | |
79c97e97 | 3387 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3388 | struct net_device *dev; |
19957bb3 JB |
3389 | struct ieee80211_channel *chan; |
3390 | const u8 *bssid, *ssid, *ie = NULL; | |
3391 | int err, ssid_len, ie_len = 0; | |
3392 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3393 | struct key_parse key; |
636a5d36 | 3394 | |
f4a11bb0 JB |
3395 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3396 | return -EINVAL; | |
3397 | ||
3398 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3399 | return -EINVAL; | |
3400 | ||
1778092e JM |
3401 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3402 | return -EINVAL; | |
3403 | ||
19957bb3 JB |
3404 | if (!info->attrs[NL80211_ATTR_SSID]) |
3405 | return -EINVAL; | |
3406 | ||
3407 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3408 | return -EINVAL; | |
3409 | ||
fffd0934 JB |
3410 | err = nl80211_parse_key(info, &key); |
3411 | if (err) | |
3412 | return err; | |
3413 | ||
3414 | if (key.idx >= 0) { | |
3415 | if (!key.p.key || !key.p.key_len) | |
3416 | return -EINVAL; | |
3417 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3418 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3419 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3420 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3421 | return -EINVAL; | |
3422 | if (key.idx > 4) | |
3423 | return -EINVAL; | |
3424 | } else { | |
3425 | key.p.key_len = 0; | |
3426 | key.p.key = NULL; | |
3427 | } | |
3428 | ||
636a5d36 JM |
3429 | rtnl_lock(); |
3430 | ||
463d0183 | 3431 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3432 | if (err) |
3433 | goto unlock_rtnl; | |
3434 | ||
79c97e97 | 3435 | if (!rdev->ops->auth) { |
636a5d36 JM |
3436 | err = -EOPNOTSUPP; |
3437 | goto out; | |
3438 | } | |
3439 | ||
eec60b03 JM |
3440 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3441 | err = -EOPNOTSUPP; | |
3442 | goto out; | |
3443 | } | |
3444 | ||
35a8efe1 JM |
3445 | if (!netif_running(dev)) { |
3446 | err = -ENETDOWN; | |
3447 | goto out; | |
3448 | } | |
3449 | ||
19957bb3 | 3450 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3451 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3452 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3453 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3454 | err = -EINVAL; | |
3455 | goto out; | |
636a5d36 JM |
3456 | } |
3457 | ||
19957bb3 JB |
3458 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3459 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3460 | |
3461 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3462 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3463 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3464 | } |
3465 | ||
19957bb3 JB |
3466 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3467 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3468 | err = -EINVAL; |
3469 | goto out; | |
636a5d36 JM |
3470 | } |
3471 | ||
79c97e97 | 3472 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 JB |
3473 | ssid, ssid_len, ie, ie_len, |
3474 | key.p.key, key.p.key_len, key.idx); | |
636a5d36 JM |
3475 | |
3476 | out: | |
79c97e97 | 3477 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3478 | dev_put(dev); |
3479 | unlock_rtnl: | |
3480 | rtnl_unlock(); | |
3481 | return err; | |
3482 | } | |
3483 | ||
b23aa676 | 3484 | static int nl80211_crypto_settings(struct genl_info *info, |
3dc27d25 JB |
3485 | struct cfg80211_crypto_settings *settings, |
3486 | int cipher_limit) | |
b23aa676 | 3487 | { |
c0b2bbd8 JB |
3488 | memset(settings, 0, sizeof(*settings)); |
3489 | ||
b23aa676 SO |
3490 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3491 | ||
3492 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
3493 | void *data; | |
3494 | int len, i; | |
3495 | ||
3496 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3497 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3498 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3499 | ||
3500 | if (len % sizeof(u32)) | |
3501 | return -EINVAL; | |
3502 | ||
3dc27d25 | 3503 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3504 | return -EINVAL; |
3505 | ||
3506 | memcpy(settings->ciphers_pairwise, data, len); | |
3507 | ||
3508 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3509 | if (!nl80211_valid_cipher_suite( | |
3510 | settings->ciphers_pairwise[i])) | |
3511 | return -EINVAL; | |
3512 | } | |
3513 | ||
3514 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3515 | settings->cipher_group = | |
3516 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3517 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3518 | return -EINVAL; | |
3519 | } | |
3520 | ||
3521 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3522 | settings->wpa_versions = | |
3523 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3524 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3525 | return -EINVAL; | |
3526 | } | |
3527 | ||
3528 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3529 | void *data; | |
3530 | int len, i; | |
3531 | ||
3532 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3533 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3534 | settings->n_akm_suites = len / sizeof(u32); | |
3535 | ||
3536 | if (len % sizeof(u32)) | |
3537 | return -EINVAL; | |
3538 | ||
3539 | memcpy(settings->akm_suites, data, len); | |
3540 | ||
3541 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3542 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3543 | return -EINVAL; | |
3544 | } | |
3545 | ||
3546 | return 0; | |
3547 | } | |
3548 | ||
636a5d36 JM |
3549 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3550 | { | |
19957bb3 | 3551 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3552 | struct net_device *dev; |
19957bb3 | 3553 | struct cfg80211_crypto_settings crypto; |
59bbb6f7 | 3554 | struct ieee80211_channel *chan, *fixedchan; |
3e5d7649 | 3555 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3556 | int err, ssid_len, ie_len = 0; |
3557 | bool use_mfp = false; | |
636a5d36 | 3558 | |
f4a11bb0 JB |
3559 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3560 | return -EINVAL; | |
3561 | ||
3562 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3563 | !info->attrs[NL80211_ATTR_SSID] || |
3564 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3565 | return -EINVAL; |
3566 | ||
636a5d36 JM |
3567 | rtnl_lock(); |
3568 | ||
463d0183 | 3569 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3570 | if (err) |
3571 | goto unlock_rtnl; | |
3572 | ||
19957bb3 | 3573 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3574 | err = -EOPNOTSUPP; |
3575 | goto out; | |
3576 | } | |
3577 | ||
eec60b03 JM |
3578 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3579 | err = -EOPNOTSUPP; | |
3580 | goto out; | |
3581 | } | |
3582 | ||
35a8efe1 JM |
3583 | if (!netif_running(dev)) { |
3584 | err = -ENETDOWN; | |
3585 | goto out; | |
3586 | } | |
3587 | ||
19957bb3 | 3588 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3589 | |
19957bb3 JB |
3590 | chan = ieee80211_get_channel(&rdev->wiphy, |
3591 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3592 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3593 | err = -EINVAL; | |
3594 | goto out; | |
636a5d36 JM |
3595 | } |
3596 | ||
59bbb6f7 JB |
3597 | mutex_lock(&rdev->devlist_mtx); |
3598 | fixedchan = rdev_fixed_channel(rdev, NULL); | |
3599 | if (fixedchan && chan != fixedchan) { | |
3600 | err = -EBUSY; | |
3601 | mutex_unlock(&rdev->devlist_mtx); | |
3602 | goto out; | |
3603 | } | |
3604 | mutex_unlock(&rdev->devlist_mtx); | |
3605 | ||
19957bb3 JB |
3606 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3607 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3608 | |
3609 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3610 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3611 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3612 | } |
3613 | ||
dc6382ce | 3614 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3615 | enum nl80211_mfp mfp = |
dc6382ce | 3616 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3617 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3618 | use_mfp = true; |
4f5dadce | 3619 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3620 | err = -EINVAL; |
3621 | goto out; | |
3622 | } | |
3623 | } | |
3624 | ||
3e5d7649 JB |
3625 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3626 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3627 | ||
3dc27d25 | 3628 | err = nl80211_crypto_settings(info, &crypto, 1); |
b23aa676 | 3629 | if (!err) |
3e5d7649 JB |
3630 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3631 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3632 | &crypto); |
636a5d36 JM |
3633 | |
3634 | out: | |
4d0c8aea | 3635 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3636 | dev_put(dev); |
3637 | unlock_rtnl: | |
3638 | rtnl_unlock(); | |
3639 | return err; | |
3640 | } | |
3641 | ||
3642 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3643 | { | |
79c97e97 | 3644 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3645 | struct net_device *dev; |
19957bb3 JB |
3646 | const u8 *ie = NULL, *bssid; |
3647 | int err, ie_len = 0; | |
3648 | u16 reason_code; | |
636a5d36 | 3649 | |
f4a11bb0 JB |
3650 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3651 | return -EINVAL; | |
3652 | ||
3653 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3654 | return -EINVAL; | |
3655 | ||
3656 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3657 | return -EINVAL; | |
3658 | ||
636a5d36 JM |
3659 | rtnl_lock(); |
3660 | ||
463d0183 | 3661 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3662 | if (err) |
3663 | goto unlock_rtnl; | |
3664 | ||
79c97e97 | 3665 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3666 | err = -EOPNOTSUPP; |
3667 | goto out; | |
3668 | } | |
3669 | ||
eec60b03 JM |
3670 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3671 | err = -EOPNOTSUPP; | |
3672 | goto out; | |
3673 | } | |
3674 | ||
35a8efe1 JM |
3675 | if (!netif_running(dev)) { |
3676 | err = -ENETDOWN; | |
3677 | goto out; | |
3678 | } | |
3679 | ||
19957bb3 | 3680 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3681 | |
19957bb3 JB |
3682 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3683 | if (reason_code == 0) { | |
f4a11bb0 JB |
3684 | /* Reason Code 0 is reserved */ |
3685 | err = -EINVAL; | |
3686 | goto out; | |
255e737e | 3687 | } |
636a5d36 JM |
3688 | |
3689 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3690 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3691 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3692 | } |
3693 | ||
79c97e97 | 3694 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3695 | |
3696 | out: | |
79c97e97 | 3697 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3698 | dev_put(dev); |
3699 | unlock_rtnl: | |
3700 | rtnl_unlock(); | |
3701 | return err; | |
3702 | } | |
3703 | ||
3704 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3705 | { | |
79c97e97 | 3706 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3707 | struct net_device *dev; |
19957bb3 JB |
3708 | const u8 *ie = NULL, *bssid; |
3709 | int err, ie_len = 0; | |
3710 | u16 reason_code; | |
636a5d36 | 3711 | |
f4a11bb0 JB |
3712 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3713 | return -EINVAL; | |
3714 | ||
3715 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3716 | return -EINVAL; | |
3717 | ||
3718 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3719 | return -EINVAL; | |
3720 | ||
636a5d36 JM |
3721 | rtnl_lock(); |
3722 | ||
463d0183 | 3723 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3724 | if (err) |
3725 | goto unlock_rtnl; | |
3726 | ||
79c97e97 | 3727 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3728 | err = -EOPNOTSUPP; |
3729 | goto out; | |
3730 | } | |
3731 | ||
eec60b03 JM |
3732 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3733 | err = -EOPNOTSUPP; | |
3734 | goto out; | |
3735 | } | |
3736 | ||
35a8efe1 JM |
3737 | if (!netif_running(dev)) { |
3738 | err = -ENETDOWN; | |
3739 | goto out; | |
3740 | } | |
3741 | ||
19957bb3 | 3742 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3743 | |
19957bb3 JB |
3744 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3745 | if (reason_code == 0) { | |
f4a11bb0 JB |
3746 | /* Reason Code 0 is reserved */ |
3747 | err = -EINVAL; | |
3748 | goto out; | |
255e737e | 3749 | } |
636a5d36 JM |
3750 | |
3751 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3752 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3753 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3754 | } |
3755 | ||
79c97e97 | 3756 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code); |
636a5d36 JM |
3757 | |
3758 | out: | |
79c97e97 | 3759 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3760 | dev_put(dev); |
3761 | unlock_rtnl: | |
3762 | rtnl_unlock(); | |
3763 | return err; | |
3764 | } | |
3765 | ||
04a773ad JB |
3766 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3767 | { | |
79c97e97 | 3768 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3769 | struct net_device *dev; |
3770 | struct cfg80211_ibss_params ibss; | |
3771 | struct wiphy *wiphy; | |
fffd0934 | 3772 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3773 | int err; |
3774 | ||
8e30bc55 JB |
3775 | memset(&ibss, 0, sizeof(ibss)); |
3776 | ||
04a773ad JB |
3777 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3778 | return -EINVAL; | |
3779 | ||
3780 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3781 | !info->attrs[NL80211_ATTR_SSID] || | |
3782 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3783 | return -EINVAL; | |
3784 | ||
8e30bc55 JB |
3785 | ibss.beacon_interval = 100; |
3786 | ||
3787 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3788 | ibss.beacon_interval = | |
3789 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3790 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3791 | return -EINVAL; | |
3792 | } | |
3793 | ||
04a773ad JB |
3794 | rtnl_lock(); |
3795 | ||
463d0183 | 3796 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3797 | if (err) |
3798 | goto unlock_rtnl; | |
3799 | ||
79c97e97 | 3800 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
3801 | err = -EOPNOTSUPP; |
3802 | goto out; | |
3803 | } | |
3804 | ||
3805 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3806 | err = -EOPNOTSUPP; | |
3807 | goto out; | |
3808 | } | |
3809 | ||
3810 | if (!netif_running(dev)) { | |
3811 | err = -ENETDOWN; | |
3812 | goto out; | |
3813 | } | |
3814 | ||
79c97e97 | 3815 | wiphy = &rdev->wiphy; |
04a773ad JB |
3816 | |
3817 | if (info->attrs[NL80211_ATTR_MAC]) | |
3818 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3819 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3820 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3821 | ||
3822 | if (info->attrs[NL80211_ATTR_IE]) { | |
3823 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3824 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3825 | } | |
3826 | ||
3827 | ibss.channel = ieee80211_get_channel(wiphy, | |
3828 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3829 | if (!ibss.channel || | |
3830 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
3831 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3832 | err = -EINVAL; | |
3833 | goto out; | |
3834 | } | |
3835 | ||
3836 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3837 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3838 | ||
3839 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
3840 | connkeys = nl80211_parse_connkeys(rdev, | |
3841 | info->attrs[NL80211_ATTR_KEYS]); | |
3842 | if (IS_ERR(connkeys)) { | |
3843 | err = PTR_ERR(connkeys); | |
3844 | connkeys = NULL; | |
3845 | goto out; | |
3846 | } | |
3847 | } | |
04a773ad | 3848 | |
fffd0934 | 3849 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
3850 | |
3851 | out: | |
79c97e97 | 3852 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3853 | dev_put(dev); |
3854 | unlock_rtnl: | |
fffd0934 JB |
3855 | if (err) |
3856 | kfree(connkeys); | |
04a773ad JB |
3857 | rtnl_unlock(); |
3858 | return err; | |
3859 | } | |
3860 | ||
3861 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3862 | { | |
79c97e97 | 3863 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3864 | struct net_device *dev; |
3865 | int err; | |
3866 | ||
3867 | rtnl_lock(); | |
3868 | ||
463d0183 | 3869 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3870 | if (err) |
3871 | goto unlock_rtnl; | |
3872 | ||
79c97e97 | 3873 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
3874 | err = -EOPNOTSUPP; |
3875 | goto out; | |
3876 | } | |
3877 | ||
3878 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3879 | err = -EOPNOTSUPP; | |
3880 | goto out; | |
3881 | } | |
3882 | ||
3883 | if (!netif_running(dev)) { | |
3884 | err = -ENETDOWN; | |
3885 | goto out; | |
3886 | } | |
3887 | ||
79c97e97 | 3888 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3889 | |
3890 | out: | |
79c97e97 | 3891 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3892 | dev_put(dev); |
3893 | unlock_rtnl: | |
3894 | rtnl_unlock(); | |
3895 | return err; | |
3896 | } | |
3897 | ||
aff89a9b JB |
3898 | #ifdef CONFIG_NL80211_TESTMODE |
3899 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3900 | .name = "testmode", | |
3901 | }; | |
3902 | ||
3903 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3904 | { | |
3905 | struct cfg80211_registered_device *rdev; | |
3906 | int err; | |
3907 | ||
3908 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3909 | return -EINVAL; | |
3910 | ||
3911 | rtnl_lock(); | |
3912 | ||
3913 | rdev = cfg80211_get_dev_from_info(info); | |
3914 | if (IS_ERR(rdev)) { | |
3915 | err = PTR_ERR(rdev); | |
3916 | goto unlock_rtnl; | |
3917 | } | |
3918 | ||
3919 | err = -EOPNOTSUPP; | |
3920 | if (rdev->ops->testmode_cmd) { | |
3921 | rdev->testmode_info = info; | |
3922 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3923 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3924 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3925 | rdev->testmode_info = NULL; | |
3926 | } | |
3927 | ||
4d0c8aea | 3928 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
3929 | |
3930 | unlock_rtnl: | |
3931 | rtnl_unlock(); | |
3932 | return err; | |
3933 | } | |
3934 | ||
3935 | static struct sk_buff * | |
3936 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3937 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3938 | { | |
3939 | struct sk_buff *skb; | |
3940 | void *hdr; | |
3941 | struct nlattr *data; | |
3942 | ||
3943 | skb = nlmsg_new(approxlen + 100, gfp); | |
3944 | if (!skb) | |
3945 | return NULL; | |
3946 | ||
3947 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3948 | if (!hdr) { | |
3949 | kfree_skb(skb); | |
3950 | return NULL; | |
3951 | } | |
3952 | ||
3953 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3954 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3955 | ||
3956 | ((void **)skb->cb)[0] = rdev; | |
3957 | ((void **)skb->cb)[1] = hdr; | |
3958 | ((void **)skb->cb)[2] = data; | |
3959 | ||
3960 | return skb; | |
3961 | ||
3962 | nla_put_failure: | |
3963 | kfree_skb(skb); | |
3964 | return NULL; | |
3965 | } | |
3966 | ||
3967 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3968 | int approxlen) | |
3969 | { | |
3970 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3971 | ||
3972 | if (WARN_ON(!rdev->testmode_info)) | |
3973 | return NULL; | |
3974 | ||
3975 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3976 | rdev->testmode_info->snd_pid, | |
3977 | rdev->testmode_info->snd_seq, | |
3978 | GFP_KERNEL); | |
3979 | } | |
3980 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3981 | ||
3982 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3983 | { | |
3984 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3985 | void *hdr = ((void **)skb->cb)[1]; | |
3986 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3987 | ||
3988 | if (WARN_ON(!rdev->testmode_info)) { | |
3989 | kfree_skb(skb); | |
3990 | return -EINVAL; | |
3991 | } | |
3992 | ||
3993 | nla_nest_end(skb, data); | |
3994 | genlmsg_end(skb, hdr); | |
3995 | return genlmsg_reply(skb, rdev->testmode_info); | |
3996 | } | |
3997 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3998 | ||
3999 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
4000 | int approxlen, gfp_t gfp) | |
4001 | { | |
4002 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4003 | ||
4004 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
4005 | } | |
4006 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
4007 | ||
4008 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
4009 | { | |
4010 | void *hdr = ((void **)skb->cb)[1]; | |
4011 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4012 | ||
4013 | nla_nest_end(skb, data); | |
4014 | genlmsg_end(skb, hdr); | |
4015 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
4016 | } | |
4017 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
4018 | #endif | |
4019 | ||
b23aa676 SO |
4020 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
4021 | { | |
79c97e97 | 4022 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4023 | struct net_device *dev; |
4024 | struct cfg80211_connect_params connect; | |
4025 | struct wiphy *wiphy; | |
fffd0934 | 4026 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
4027 | int err; |
4028 | ||
4029 | memset(&connect, 0, sizeof(connect)); | |
4030 | ||
4031 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4032 | return -EINVAL; | |
4033 | ||
4034 | if (!info->attrs[NL80211_ATTR_SSID] || | |
4035 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4036 | return -EINVAL; | |
4037 | ||
4038 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
4039 | connect.auth_type = | |
4040 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
4041 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
4042 | return -EINVAL; | |
4043 | } else | |
4044 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
4045 | ||
4046 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
4047 | ||
3dc27d25 JB |
4048 | err = nl80211_crypto_settings(info, &connect.crypto, |
4049 | NL80211_MAX_NR_CIPHER_SUITES); | |
b23aa676 SO |
4050 | if (err) |
4051 | return err; | |
4052 | rtnl_lock(); | |
4053 | ||
463d0183 | 4054 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4055 | if (err) |
4056 | goto unlock_rtnl; | |
4057 | ||
4058 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4059 | err = -EOPNOTSUPP; | |
4060 | goto out; | |
4061 | } | |
4062 | ||
4063 | if (!netif_running(dev)) { | |
4064 | err = -ENETDOWN; | |
4065 | goto out; | |
4066 | } | |
4067 | ||
79c97e97 | 4068 | wiphy = &rdev->wiphy; |
b23aa676 | 4069 | |
b23aa676 SO |
4070 | if (info->attrs[NL80211_ATTR_MAC]) |
4071 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4072 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4073 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4074 | ||
4075 | if (info->attrs[NL80211_ATTR_IE]) { | |
4076 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4077 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4078 | } | |
4079 | ||
4080 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
4081 | connect.channel = | |
4082 | ieee80211_get_channel(wiphy, | |
4083 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4084 | if (!connect.channel || | |
4085 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4086 | err = -EINVAL; | |
4087 | goto out; | |
4088 | } | |
4089 | } | |
4090 | ||
fffd0934 JB |
4091 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4092 | connkeys = nl80211_parse_connkeys(rdev, | |
4093 | info->attrs[NL80211_ATTR_KEYS]); | |
4094 | if (IS_ERR(connkeys)) { | |
4095 | err = PTR_ERR(connkeys); | |
4096 | connkeys = NULL; | |
4097 | goto out; | |
4098 | } | |
4099 | } | |
4100 | ||
4101 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
4102 | |
4103 | out: | |
79c97e97 | 4104 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4105 | dev_put(dev); |
4106 | unlock_rtnl: | |
fffd0934 JB |
4107 | if (err) |
4108 | kfree(connkeys); | |
b23aa676 SO |
4109 | rtnl_unlock(); |
4110 | return err; | |
4111 | } | |
4112 | ||
4113 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4114 | { | |
79c97e97 | 4115 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4116 | struct net_device *dev; |
4117 | int err; | |
4118 | u16 reason; | |
4119 | ||
4120 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4121 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4122 | else | |
4123 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4124 | ||
4125 | if (reason == 0) | |
4126 | return -EINVAL; | |
4127 | ||
4128 | rtnl_lock(); | |
4129 | ||
463d0183 | 4130 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4131 | if (err) |
4132 | goto unlock_rtnl; | |
4133 | ||
4134 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4135 | err = -EOPNOTSUPP; | |
4136 | goto out; | |
4137 | } | |
4138 | ||
4139 | if (!netif_running(dev)) { | |
4140 | err = -ENETDOWN; | |
4141 | goto out; | |
4142 | } | |
4143 | ||
79c97e97 | 4144 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4145 | |
4146 | out: | |
79c97e97 | 4147 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4148 | dev_put(dev); |
4149 | unlock_rtnl: | |
4150 | rtnl_unlock(); | |
4151 | return err; | |
4152 | } | |
4153 | ||
463d0183 JB |
4154 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4155 | { | |
4156 | struct cfg80211_registered_device *rdev; | |
4157 | struct net *net; | |
4158 | int err; | |
4159 | u32 pid; | |
4160 | ||
4161 | if (!info->attrs[NL80211_ATTR_PID]) | |
4162 | return -EINVAL; | |
4163 | ||
4164 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4165 | ||
4166 | rtnl_lock(); | |
4167 | ||
4168 | rdev = cfg80211_get_dev_from_info(info); | |
4169 | if (IS_ERR(rdev)) { | |
4170 | err = PTR_ERR(rdev); | |
8a8e05e5 | 4171 | goto out_rtnl; |
463d0183 JB |
4172 | } |
4173 | ||
4174 | net = get_net_ns_by_pid(pid); | |
4175 | if (IS_ERR(net)) { | |
4176 | err = PTR_ERR(net); | |
4177 | goto out; | |
4178 | } | |
4179 | ||
4180 | err = 0; | |
4181 | ||
4182 | /* check if anything to do */ | |
4183 | if (net_eq(wiphy_net(&rdev->wiphy), net)) | |
4184 | goto out_put_net; | |
4185 | ||
4186 | err = cfg80211_switch_netns(rdev, net); | |
4187 | out_put_net: | |
4188 | put_net(net); | |
4189 | out: | |
4190 | cfg80211_unlock_rdev(rdev); | |
8a8e05e5 | 4191 | out_rtnl: |
463d0183 JB |
4192 | rtnl_unlock(); |
4193 | return err; | |
4194 | } | |
4195 | ||
67fbb16b SO |
4196 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4197 | { | |
4198 | struct cfg80211_registered_device *rdev; | |
4199 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
4200 | struct cfg80211_pmksa *pmksa) = NULL; | |
4201 | int err; | |
4202 | struct net_device *dev; | |
4203 | struct cfg80211_pmksa pmksa; | |
4204 | ||
4205 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4206 | ||
4207 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4208 | return -EINVAL; | |
4209 | ||
4210 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4211 | return -EINVAL; | |
4212 | ||
4213 | rtnl_lock(); | |
4214 | ||
4215 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4216 | if (err) | |
4217 | goto out_rtnl; | |
4218 | ||
4219 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
4220 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4221 | ||
4222 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4223 | err = -EOPNOTSUPP; | |
4224 | goto out; | |
4225 | } | |
4226 | ||
4227 | switch (info->genlhdr->cmd) { | |
4228 | case NL80211_CMD_SET_PMKSA: | |
4229 | rdev_ops = rdev->ops->set_pmksa; | |
4230 | break; | |
4231 | case NL80211_CMD_DEL_PMKSA: | |
4232 | rdev_ops = rdev->ops->del_pmksa; | |
4233 | break; | |
4234 | default: | |
4235 | WARN_ON(1); | |
4236 | break; | |
4237 | } | |
4238 | ||
4239 | if (!rdev_ops) { | |
4240 | err = -EOPNOTSUPP; | |
4241 | goto out; | |
4242 | } | |
4243 | ||
4244 | err = rdev_ops(&rdev->wiphy, dev, &pmksa); | |
4245 | ||
4246 | out: | |
4247 | cfg80211_unlock_rdev(rdev); | |
4248 | dev_put(dev); | |
4249 | out_rtnl: | |
4250 | rtnl_unlock(); | |
4251 | ||
4252 | return err; | |
4253 | } | |
4254 | ||
4255 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4256 | { | |
4257 | struct cfg80211_registered_device *rdev; | |
4258 | int err; | |
4259 | struct net_device *dev; | |
4260 | ||
4261 | rtnl_lock(); | |
4262 | ||
4263 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4264 | if (err) | |
4265 | goto out_rtnl; | |
4266 | ||
4267 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4268 | err = -EOPNOTSUPP; | |
4269 | goto out; | |
4270 | } | |
4271 | ||
4272 | if (!rdev->ops->flush_pmksa) { | |
4273 | err = -EOPNOTSUPP; | |
4274 | goto out; | |
4275 | } | |
4276 | ||
4277 | err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); | |
4278 | ||
4279 | out: | |
4280 | cfg80211_unlock_rdev(rdev); | |
4281 | dev_put(dev); | |
4282 | out_rtnl: | |
4283 | rtnl_unlock(); | |
4284 | ||
4285 | return err; | |
4286 | ||
4287 | } | |
4288 | ||
9588bbd5 JM |
4289 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4290 | struct genl_info *info) | |
4291 | { | |
4292 | struct cfg80211_registered_device *rdev; | |
4293 | struct net_device *dev; | |
4294 | struct ieee80211_channel *chan; | |
4295 | struct sk_buff *msg; | |
4296 | void *hdr; | |
4297 | u64 cookie; | |
4298 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4299 | u32 freq, duration; | |
4300 | int err; | |
4301 | ||
4302 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4303 | !info->attrs[NL80211_ATTR_DURATION]) | |
4304 | return -EINVAL; | |
4305 | ||
4306 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4307 | ||
4308 | /* | |
4309 | * We should be on that channel for at least one jiffie, | |
4310 | * and more than 5 seconds seems excessive. | |
4311 | */ | |
4312 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4313 | return -EINVAL; | |
4314 | ||
4315 | rtnl_lock(); | |
4316 | ||
4317 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4318 | if (err) | |
4319 | goto unlock_rtnl; | |
4320 | ||
4321 | if (!rdev->ops->remain_on_channel) { | |
4322 | err = -EOPNOTSUPP; | |
4323 | goto out; | |
4324 | } | |
4325 | ||
4326 | if (!netif_running(dev)) { | |
4327 | err = -ENETDOWN; | |
4328 | goto out; | |
4329 | } | |
4330 | ||
4331 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4332 | channel_type = nla_get_u32( | |
4333 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4334 | if (channel_type != NL80211_CHAN_NO_HT && | |
4335 | channel_type != NL80211_CHAN_HT20 && | |
4336 | channel_type != NL80211_CHAN_HT40PLUS && | |
4337 | channel_type != NL80211_CHAN_HT40MINUS) | |
4338 | err = -EINVAL; | |
4339 | goto out; | |
4340 | } | |
4341 | ||
4342 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4343 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4344 | if (chan == NULL) { | |
4345 | err = -EINVAL; | |
4346 | goto out; | |
4347 | } | |
4348 | ||
4349 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4350 | if (!msg) { | |
4351 | err = -ENOMEM; | |
4352 | goto out; | |
4353 | } | |
4354 | ||
4355 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4356 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4357 | ||
4358 | if (IS_ERR(hdr)) { | |
4359 | err = PTR_ERR(hdr); | |
4360 | goto free_msg; | |
4361 | } | |
4362 | ||
4363 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4364 | channel_type, duration, &cookie); | |
4365 | ||
4366 | if (err) | |
4367 | goto free_msg; | |
4368 | ||
4369 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4370 | ||
4371 | genlmsg_end(msg, hdr); | |
4372 | err = genlmsg_reply(msg, info); | |
4373 | goto out; | |
4374 | ||
4375 | nla_put_failure: | |
4376 | err = -ENOBUFS; | |
4377 | free_msg: | |
4378 | nlmsg_free(msg); | |
4379 | out: | |
4380 | cfg80211_unlock_rdev(rdev); | |
4381 | dev_put(dev); | |
4382 | unlock_rtnl: | |
4383 | rtnl_unlock(); | |
4384 | return err; | |
4385 | } | |
4386 | ||
4387 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4388 | struct genl_info *info) | |
4389 | { | |
4390 | struct cfg80211_registered_device *rdev; | |
4391 | struct net_device *dev; | |
4392 | u64 cookie; | |
4393 | int err; | |
4394 | ||
4395 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4396 | return -EINVAL; | |
4397 | ||
4398 | rtnl_lock(); | |
4399 | ||
4400 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4401 | if (err) | |
4402 | goto unlock_rtnl; | |
4403 | ||
4404 | if (!rdev->ops->cancel_remain_on_channel) { | |
4405 | err = -EOPNOTSUPP; | |
4406 | goto out; | |
4407 | } | |
4408 | ||
4409 | if (!netif_running(dev)) { | |
4410 | err = -ENETDOWN; | |
4411 | goto out; | |
4412 | } | |
4413 | ||
4414 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4415 | ||
4416 | err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); | |
4417 | ||
4418 | out: | |
4419 | cfg80211_unlock_rdev(rdev); | |
4420 | dev_put(dev); | |
4421 | unlock_rtnl: | |
4422 | rtnl_unlock(); | |
4423 | return err; | |
4424 | } | |
4425 | ||
55682965 JB |
4426 | static struct genl_ops nl80211_ops[] = { |
4427 | { | |
4428 | .cmd = NL80211_CMD_GET_WIPHY, | |
4429 | .doit = nl80211_get_wiphy, | |
4430 | .dumpit = nl80211_dump_wiphy, | |
4431 | .policy = nl80211_policy, | |
4432 | /* can be retrieved by unprivileged users */ | |
4433 | }, | |
4434 | { | |
4435 | .cmd = NL80211_CMD_SET_WIPHY, | |
4436 | .doit = nl80211_set_wiphy, | |
4437 | .policy = nl80211_policy, | |
4438 | .flags = GENL_ADMIN_PERM, | |
4439 | }, | |
4440 | { | |
4441 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4442 | .doit = nl80211_get_interface, | |
4443 | .dumpit = nl80211_dump_interface, | |
4444 | .policy = nl80211_policy, | |
4445 | /* can be retrieved by unprivileged users */ | |
4446 | }, | |
4447 | { | |
4448 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4449 | .doit = nl80211_set_interface, | |
4450 | .policy = nl80211_policy, | |
4451 | .flags = GENL_ADMIN_PERM, | |
4452 | }, | |
4453 | { | |
4454 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4455 | .doit = nl80211_new_interface, | |
4456 | .policy = nl80211_policy, | |
4457 | .flags = GENL_ADMIN_PERM, | |
4458 | }, | |
4459 | { | |
4460 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4461 | .doit = nl80211_del_interface, | |
4462 | .policy = nl80211_policy, | |
41ade00f JB |
4463 | .flags = GENL_ADMIN_PERM, |
4464 | }, | |
4465 | { | |
4466 | .cmd = NL80211_CMD_GET_KEY, | |
4467 | .doit = nl80211_get_key, | |
4468 | .policy = nl80211_policy, | |
4469 | .flags = GENL_ADMIN_PERM, | |
4470 | }, | |
4471 | { | |
4472 | .cmd = NL80211_CMD_SET_KEY, | |
4473 | .doit = nl80211_set_key, | |
4474 | .policy = nl80211_policy, | |
4475 | .flags = GENL_ADMIN_PERM, | |
4476 | }, | |
4477 | { | |
4478 | .cmd = NL80211_CMD_NEW_KEY, | |
4479 | .doit = nl80211_new_key, | |
4480 | .policy = nl80211_policy, | |
4481 | .flags = GENL_ADMIN_PERM, | |
4482 | }, | |
4483 | { | |
4484 | .cmd = NL80211_CMD_DEL_KEY, | |
4485 | .doit = nl80211_del_key, | |
4486 | .policy = nl80211_policy, | |
55682965 JB |
4487 | .flags = GENL_ADMIN_PERM, |
4488 | }, | |
ed1b6cc7 JB |
4489 | { |
4490 | .cmd = NL80211_CMD_SET_BEACON, | |
4491 | .policy = nl80211_policy, | |
4492 | .flags = GENL_ADMIN_PERM, | |
4493 | .doit = nl80211_addset_beacon, | |
4494 | }, | |
4495 | { | |
4496 | .cmd = NL80211_CMD_NEW_BEACON, | |
4497 | .policy = nl80211_policy, | |
4498 | .flags = GENL_ADMIN_PERM, | |
4499 | .doit = nl80211_addset_beacon, | |
4500 | }, | |
4501 | { | |
4502 | .cmd = NL80211_CMD_DEL_BEACON, | |
4503 | .policy = nl80211_policy, | |
4504 | .flags = GENL_ADMIN_PERM, | |
4505 | .doit = nl80211_del_beacon, | |
4506 | }, | |
5727ef1b JB |
4507 | { |
4508 | .cmd = NL80211_CMD_GET_STATION, | |
4509 | .doit = nl80211_get_station, | |
2ec600d6 | 4510 | .dumpit = nl80211_dump_station, |
5727ef1b | 4511 | .policy = nl80211_policy, |
5727ef1b JB |
4512 | }, |
4513 | { | |
4514 | .cmd = NL80211_CMD_SET_STATION, | |
4515 | .doit = nl80211_set_station, | |
4516 | .policy = nl80211_policy, | |
4517 | .flags = GENL_ADMIN_PERM, | |
4518 | }, | |
4519 | { | |
4520 | .cmd = NL80211_CMD_NEW_STATION, | |
4521 | .doit = nl80211_new_station, | |
4522 | .policy = nl80211_policy, | |
4523 | .flags = GENL_ADMIN_PERM, | |
4524 | }, | |
4525 | { | |
4526 | .cmd = NL80211_CMD_DEL_STATION, | |
4527 | .doit = nl80211_del_station, | |
4528 | .policy = nl80211_policy, | |
2ec600d6 LCC |
4529 | .flags = GENL_ADMIN_PERM, |
4530 | }, | |
4531 | { | |
4532 | .cmd = NL80211_CMD_GET_MPATH, | |
4533 | .doit = nl80211_get_mpath, | |
4534 | .dumpit = nl80211_dump_mpath, | |
4535 | .policy = nl80211_policy, | |
4536 | .flags = GENL_ADMIN_PERM, | |
4537 | }, | |
4538 | { | |
4539 | .cmd = NL80211_CMD_SET_MPATH, | |
4540 | .doit = nl80211_set_mpath, | |
4541 | .policy = nl80211_policy, | |
4542 | .flags = GENL_ADMIN_PERM, | |
4543 | }, | |
4544 | { | |
4545 | .cmd = NL80211_CMD_NEW_MPATH, | |
4546 | .doit = nl80211_new_mpath, | |
4547 | .policy = nl80211_policy, | |
4548 | .flags = GENL_ADMIN_PERM, | |
4549 | }, | |
4550 | { | |
4551 | .cmd = NL80211_CMD_DEL_MPATH, | |
4552 | .doit = nl80211_del_mpath, | |
4553 | .policy = nl80211_policy, | |
9f1ba906 JM |
4554 | .flags = GENL_ADMIN_PERM, |
4555 | }, | |
4556 | { | |
4557 | .cmd = NL80211_CMD_SET_BSS, | |
4558 | .doit = nl80211_set_bss, | |
4559 | .policy = nl80211_policy, | |
b2e1b302 LR |
4560 | .flags = GENL_ADMIN_PERM, |
4561 | }, | |
f130347c LR |
4562 | { |
4563 | .cmd = NL80211_CMD_GET_REG, | |
4564 | .doit = nl80211_get_reg, | |
4565 | .policy = nl80211_policy, | |
4566 | /* can be retrieved by unprivileged users */ | |
4567 | }, | |
b2e1b302 LR |
4568 | { |
4569 | .cmd = NL80211_CMD_SET_REG, | |
4570 | .doit = nl80211_set_reg, | |
4571 | .policy = nl80211_policy, | |
4572 | .flags = GENL_ADMIN_PERM, | |
4573 | }, | |
4574 | { | |
4575 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4576 | .doit = nl80211_req_set_reg, | |
4577 | .policy = nl80211_policy, | |
93da9cc1 | 4578 | .flags = GENL_ADMIN_PERM, |
4579 | }, | |
4580 | { | |
4581 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4582 | .doit = nl80211_get_mesh_params, | |
4583 | .policy = nl80211_policy, | |
4584 | /* can be retrieved by unprivileged users */ | |
4585 | }, | |
4586 | { | |
4587 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4588 | .doit = nl80211_set_mesh_params, | |
4589 | .policy = nl80211_policy, | |
9aed3cc1 JM |
4590 | .flags = GENL_ADMIN_PERM, |
4591 | }, | |
2a519311 JB |
4592 | { |
4593 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4594 | .doit = nl80211_trigger_scan, | |
4595 | .policy = nl80211_policy, | |
4596 | .flags = GENL_ADMIN_PERM, | |
4597 | }, | |
4598 | { | |
4599 | .cmd = NL80211_CMD_GET_SCAN, | |
4600 | .policy = nl80211_policy, | |
4601 | .dumpit = nl80211_dump_scan, | |
4602 | }, | |
636a5d36 JM |
4603 | { |
4604 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4605 | .doit = nl80211_authenticate, | |
4606 | .policy = nl80211_policy, | |
4607 | .flags = GENL_ADMIN_PERM, | |
4608 | }, | |
4609 | { | |
4610 | .cmd = NL80211_CMD_ASSOCIATE, | |
4611 | .doit = nl80211_associate, | |
4612 | .policy = nl80211_policy, | |
4613 | .flags = GENL_ADMIN_PERM, | |
4614 | }, | |
4615 | { | |
4616 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4617 | .doit = nl80211_deauthenticate, | |
4618 | .policy = nl80211_policy, | |
4619 | .flags = GENL_ADMIN_PERM, | |
4620 | }, | |
4621 | { | |
4622 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4623 | .doit = nl80211_disassociate, | |
4624 | .policy = nl80211_policy, | |
4625 | .flags = GENL_ADMIN_PERM, | |
4626 | }, | |
04a773ad JB |
4627 | { |
4628 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4629 | .doit = nl80211_join_ibss, | |
4630 | .policy = nl80211_policy, | |
4631 | .flags = GENL_ADMIN_PERM, | |
4632 | }, | |
4633 | { | |
4634 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4635 | .doit = nl80211_leave_ibss, | |
4636 | .policy = nl80211_policy, | |
4637 | .flags = GENL_ADMIN_PERM, | |
4638 | }, | |
aff89a9b JB |
4639 | #ifdef CONFIG_NL80211_TESTMODE |
4640 | { | |
4641 | .cmd = NL80211_CMD_TESTMODE, | |
4642 | .doit = nl80211_testmode_do, | |
4643 | .policy = nl80211_policy, | |
4644 | .flags = GENL_ADMIN_PERM, | |
4645 | }, | |
4646 | #endif | |
b23aa676 SO |
4647 | { |
4648 | .cmd = NL80211_CMD_CONNECT, | |
4649 | .doit = nl80211_connect, | |
4650 | .policy = nl80211_policy, | |
4651 | .flags = GENL_ADMIN_PERM, | |
4652 | }, | |
4653 | { | |
4654 | .cmd = NL80211_CMD_DISCONNECT, | |
4655 | .doit = nl80211_disconnect, | |
4656 | .policy = nl80211_policy, | |
4657 | .flags = GENL_ADMIN_PERM, | |
4658 | }, | |
463d0183 JB |
4659 | { |
4660 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
4661 | .doit = nl80211_wiphy_netns, | |
4662 | .policy = nl80211_policy, | |
4663 | .flags = GENL_ADMIN_PERM, | |
4664 | }, | |
61fa713c HS |
4665 | { |
4666 | .cmd = NL80211_CMD_GET_SURVEY, | |
4667 | .policy = nl80211_policy, | |
4668 | .dumpit = nl80211_dump_survey, | |
4669 | }, | |
67fbb16b SO |
4670 | { |
4671 | .cmd = NL80211_CMD_SET_PMKSA, | |
4672 | .doit = nl80211_setdel_pmksa, | |
4673 | .policy = nl80211_policy, | |
4674 | .flags = GENL_ADMIN_PERM, | |
4675 | }, | |
4676 | { | |
4677 | .cmd = NL80211_CMD_DEL_PMKSA, | |
4678 | .doit = nl80211_setdel_pmksa, | |
4679 | .policy = nl80211_policy, | |
4680 | .flags = GENL_ADMIN_PERM, | |
4681 | }, | |
4682 | { | |
4683 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
4684 | .doit = nl80211_flush_pmksa, | |
4685 | .policy = nl80211_policy, | |
4686 | .flags = GENL_ADMIN_PERM, | |
4687 | }, | |
9588bbd5 JM |
4688 | { |
4689 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
4690 | .doit = nl80211_remain_on_channel, | |
4691 | .policy = nl80211_policy, | |
4692 | .flags = GENL_ADMIN_PERM, | |
4693 | }, | |
4694 | { | |
4695 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
4696 | .doit = nl80211_cancel_remain_on_channel, | |
4697 | .policy = nl80211_policy, | |
4698 | .flags = GENL_ADMIN_PERM, | |
4699 | }, | |
55682965 | 4700 | }; |
9588bbd5 | 4701 | |
6039f6d2 JM |
4702 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
4703 | .name = "mlme", | |
4704 | }; | |
55682965 JB |
4705 | |
4706 | /* multicast groups */ | |
4707 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
4708 | .name = "config", | |
4709 | }; | |
2a519311 JB |
4710 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
4711 | .name = "scan", | |
4712 | }; | |
73d54c9e LR |
4713 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
4714 | .name = "regulatory", | |
4715 | }; | |
55682965 JB |
4716 | |
4717 | /* notification functions */ | |
4718 | ||
4719 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
4720 | { | |
4721 | struct sk_buff *msg; | |
4722 | ||
fd2120ca | 4723 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
4724 | if (!msg) |
4725 | return; | |
4726 | ||
4727 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
4728 | nlmsg_free(msg); | |
4729 | return; | |
4730 | } | |
4731 | ||
463d0183 JB |
4732 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4733 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
4734 | } |
4735 | ||
362a415d JB |
4736 | static int nl80211_add_scan_req(struct sk_buff *msg, |
4737 | struct cfg80211_registered_device *rdev) | |
4738 | { | |
4739 | struct cfg80211_scan_request *req = rdev->scan_req; | |
4740 | struct nlattr *nest; | |
4741 | int i; | |
4742 | ||
667503dd JB |
4743 | ASSERT_RDEV_LOCK(rdev); |
4744 | ||
362a415d JB |
4745 | if (WARN_ON(!req)) |
4746 | return 0; | |
4747 | ||
4748 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
4749 | if (!nest) | |
4750 | goto nla_put_failure; | |
4751 | for (i = 0; i < req->n_ssids; i++) | |
4752 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
4753 | nla_nest_end(msg, nest); | |
4754 | ||
4755 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
4756 | if (!nest) | |
4757 | goto nla_put_failure; | |
4758 | for (i = 0; i < req->n_channels; i++) | |
4759 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
4760 | nla_nest_end(msg, nest); | |
4761 | ||
4762 | if (req->ie) | |
4763 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
4764 | ||
4765 | return 0; | |
4766 | nla_put_failure: | |
4767 | return -ENOBUFS; | |
4768 | } | |
4769 | ||
a538e2d5 JB |
4770 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
4771 | struct cfg80211_registered_device *rdev, | |
4772 | struct net_device *netdev, | |
4773 | u32 pid, u32 seq, int flags, | |
4774 | u32 cmd) | |
2a519311 JB |
4775 | { |
4776 | void *hdr; | |
4777 | ||
4778 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
4779 | if (!hdr) | |
4780 | return -1; | |
4781 | ||
b5850a7a | 4782 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
4783 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
4784 | ||
362a415d JB |
4785 | /* ignore errors and send incomplete event anyway */ |
4786 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
4787 | |
4788 | return genlmsg_end(msg, hdr); | |
4789 | ||
4790 | nla_put_failure: | |
4791 | genlmsg_cancel(msg, hdr); | |
4792 | return -EMSGSIZE; | |
4793 | } | |
4794 | ||
a538e2d5 JB |
4795 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
4796 | struct net_device *netdev) | |
4797 | { | |
4798 | struct sk_buff *msg; | |
4799 | ||
4800 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
4801 | if (!msg) | |
4802 | return; | |
4803 | ||
4804 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
4805 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
4806 | nlmsg_free(msg); | |
4807 | return; | |
4808 | } | |
4809 | ||
463d0183 JB |
4810 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4811 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
4812 | } |
4813 | ||
2a519311 JB |
4814 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
4815 | struct net_device *netdev) | |
4816 | { | |
4817 | struct sk_buff *msg; | |
4818 | ||
fd2120ca | 4819 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4820 | if (!msg) |
4821 | return; | |
4822 | ||
a538e2d5 JB |
4823 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4824 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
4825 | nlmsg_free(msg); |
4826 | return; | |
4827 | } | |
4828 | ||
463d0183 JB |
4829 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4830 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
4831 | } |
4832 | ||
4833 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
4834 | struct net_device *netdev) | |
4835 | { | |
4836 | struct sk_buff *msg; | |
4837 | ||
fd2120ca | 4838 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4839 | if (!msg) |
4840 | return; | |
4841 | ||
a538e2d5 JB |
4842 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4843 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
4844 | nlmsg_free(msg); |
4845 | return; | |
4846 | } | |
4847 | ||
463d0183 JB |
4848 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4849 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
4850 | } |
4851 | ||
73d54c9e LR |
4852 | /* |
4853 | * This can happen on global regulatory changes or device specific settings | |
4854 | * based on custom world regulatory domains. | |
4855 | */ | |
4856 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
4857 | { | |
4858 | struct sk_buff *msg; | |
4859 | void *hdr; | |
4860 | ||
fd2120ca | 4861 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
4862 | if (!msg) |
4863 | return; | |
4864 | ||
4865 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
4866 | if (!hdr) { | |
4867 | nlmsg_free(msg); | |
4868 | return; | |
4869 | } | |
4870 | ||
4871 | /* Userspace can always count this one always being set */ | |
4872 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
4873 | ||
4874 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
4875 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4876 | NL80211_REGDOM_TYPE_WORLD); | |
4877 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
4878 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4879 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
4880 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
4881 | request->intersect) | |
4882 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4883 | NL80211_REGDOM_TYPE_INTERSECTION); | |
4884 | else { | |
4885 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4886 | NL80211_REGDOM_TYPE_COUNTRY); | |
4887 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
4888 | } | |
4889 | ||
4890 | if (wiphy_idx_valid(request->wiphy_idx)) | |
4891 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
4892 | ||
4893 | if (genlmsg_end(msg, hdr) < 0) { | |
4894 | nlmsg_free(msg); | |
4895 | return; | |
4896 | } | |
4897 | ||
bc43b28c | 4898 | rcu_read_lock(); |
463d0183 | 4899 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
4900 | GFP_ATOMIC); |
4901 | rcu_read_unlock(); | |
73d54c9e LR |
4902 | |
4903 | return; | |
4904 | ||
4905 | nla_put_failure: | |
4906 | genlmsg_cancel(msg, hdr); | |
4907 | nlmsg_free(msg); | |
4908 | } | |
4909 | ||
6039f6d2 JM |
4910 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
4911 | struct net_device *netdev, | |
4912 | const u8 *buf, size_t len, | |
e6d6e342 | 4913 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
4914 | { |
4915 | struct sk_buff *msg; | |
4916 | void *hdr; | |
4917 | ||
e6d6e342 | 4918 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
4919 | if (!msg) |
4920 | return; | |
4921 | ||
4922 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
4923 | if (!hdr) { | |
4924 | nlmsg_free(msg); | |
4925 | return; | |
4926 | } | |
4927 | ||
4928 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4929 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4930 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
4931 | ||
4932 | if (genlmsg_end(msg, hdr) < 0) { | |
4933 | nlmsg_free(msg); | |
4934 | return; | |
4935 | } | |
4936 | ||
463d0183 JB |
4937 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4938 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
4939 | return; |
4940 | ||
4941 | nla_put_failure: | |
4942 | genlmsg_cancel(msg, hdr); | |
4943 | nlmsg_free(msg); | |
4944 | } | |
4945 | ||
4946 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
4947 | struct net_device *netdev, const u8 *buf, |
4948 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
4949 | { |
4950 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4951 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
4952 | } |
4953 | ||
4954 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
4955 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 4956 | size_t len, gfp_t gfp) |
6039f6d2 | 4957 | { |
e6d6e342 JB |
4958 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
4959 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
4960 | } |
4961 | ||
53b46b84 | 4962 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
4963 | struct net_device *netdev, const u8 *buf, |
4964 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
4965 | { |
4966 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4967 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
4968 | } |
4969 | ||
53b46b84 JM |
4970 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
4971 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 4972 | size_t len, gfp_t gfp) |
6039f6d2 JM |
4973 | { |
4974 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 4975 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
4976 | } |
4977 | ||
1b06bb40 LR |
4978 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
4979 | struct net_device *netdev, int cmd, | |
e6d6e342 | 4980 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
4981 | { |
4982 | struct sk_buff *msg; | |
4983 | void *hdr; | |
4984 | ||
e6d6e342 | 4985 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
4986 | if (!msg) |
4987 | return; | |
4988 | ||
4989 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
4990 | if (!hdr) { | |
4991 | nlmsg_free(msg); | |
4992 | return; | |
4993 | } | |
4994 | ||
4995 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4996 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
4997 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
4998 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
4999 | ||
5000 | if (genlmsg_end(msg, hdr) < 0) { | |
5001 | nlmsg_free(msg); | |
5002 | return; | |
5003 | } | |
5004 | ||
463d0183 JB |
5005 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5006 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5007 | return; |
5008 | ||
5009 | nla_put_failure: | |
5010 | genlmsg_cancel(msg, hdr); | |
5011 | nlmsg_free(msg); | |
5012 | } | |
5013 | ||
5014 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5015 | struct net_device *netdev, const u8 *addr, |
5016 | gfp_t gfp) | |
1965c853 JM |
5017 | { |
5018 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5019 | addr, gfp); |
1965c853 JM |
5020 | } |
5021 | ||
5022 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5023 | struct net_device *netdev, const u8 *addr, |
5024 | gfp_t gfp) | |
1965c853 | 5025 | { |
e6d6e342 JB |
5026 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5027 | addr, gfp); | |
1965c853 JM |
5028 | } |
5029 | ||
b23aa676 SO |
5030 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5031 | struct net_device *netdev, const u8 *bssid, | |
5032 | const u8 *req_ie, size_t req_ie_len, | |
5033 | const u8 *resp_ie, size_t resp_ie_len, | |
5034 | u16 status, gfp_t gfp) | |
5035 | { | |
5036 | struct sk_buff *msg; | |
5037 | void *hdr; | |
5038 | ||
5039 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5040 | if (!msg) | |
5041 | return; | |
5042 | ||
5043 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5044 | if (!hdr) { | |
5045 | nlmsg_free(msg); | |
5046 | return; | |
5047 | } | |
5048 | ||
5049 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5050 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5051 | if (bssid) | |
5052 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5053 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5054 | if (req_ie) | |
5055 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5056 | if (resp_ie) | |
5057 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5058 | ||
5059 | if (genlmsg_end(msg, hdr) < 0) { | |
5060 | nlmsg_free(msg); | |
5061 | return; | |
5062 | } | |
5063 | ||
463d0183 JB |
5064 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5065 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5066 | return; |
5067 | ||
5068 | nla_put_failure: | |
5069 | genlmsg_cancel(msg, hdr); | |
5070 | nlmsg_free(msg); | |
5071 | ||
5072 | } | |
5073 | ||
5074 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5075 | struct net_device *netdev, const u8 *bssid, | |
5076 | const u8 *req_ie, size_t req_ie_len, | |
5077 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5078 | { | |
5079 | struct sk_buff *msg; | |
5080 | void *hdr; | |
5081 | ||
5082 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5083 | if (!msg) | |
5084 | return; | |
5085 | ||
5086 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5087 | if (!hdr) { | |
5088 | nlmsg_free(msg); | |
5089 | return; | |
5090 | } | |
5091 | ||
5092 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5093 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5094 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5095 | if (req_ie) | |
5096 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5097 | if (resp_ie) | |
5098 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5099 | ||
5100 | if (genlmsg_end(msg, hdr) < 0) { | |
5101 | nlmsg_free(msg); | |
5102 | return; | |
5103 | } | |
5104 | ||
463d0183 JB |
5105 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5106 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5107 | return; |
5108 | ||
5109 | nla_put_failure: | |
5110 | genlmsg_cancel(msg, hdr); | |
5111 | nlmsg_free(msg); | |
5112 | ||
5113 | } | |
5114 | ||
5115 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5116 | struct net_device *netdev, u16 reason, | |
667503dd | 5117 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5118 | { |
5119 | struct sk_buff *msg; | |
5120 | void *hdr; | |
5121 | ||
667503dd | 5122 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5123 | if (!msg) |
5124 | return; | |
5125 | ||
5126 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5127 | if (!hdr) { | |
5128 | nlmsg_free(msg); | |
5129 | return; | |
5130 | } | |
5131 | ||
5132 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5133 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5134 | if (from_ap && reason) | |
5135 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5136 | if (from_ap) | |
5137 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5138 | if (ie) | |
5139 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5140 | ||
5141 | if (genlmsg_end(msg, hdr) < 0) { | |
5142 | nlmsg_free(msg); | |
5143 | return; | |
5144 | } | |
5145 | ||
463d0183 JB |
5146 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5147 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5148 | return; |
5149 | ||
5150 | nla_put_failure: | |
5151 | genlmsg_cancel(msg, hdr); | |
5152 | nlmsg_free(msg); | |
5153 | ||
5154 | } | |
5155 | ||
04a773ad JB |
5156 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5157 | struct net_device *netdev, const u8 *bssid, | |
5158 | gfp_t gfp) | |
5159 | { | |
5160 | struct sk_buff *msg; | |
5161 | void *hdr; | |
5162 | ||
fd2120ca | 5163 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5164 | if (!msg) |
5165 | return; | |
5166 | ||
5167 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5168 | if (!hdr) { | |
5169 | nlmsg_free(msg); | |
5170 | return; | |
5171 | } | |
5172 | ||
5173 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5174 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5175 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5176 | ||
5177 | if (genlmsg_end(msg, hdr) < 0) { | |
5178 | nlmsg_free(msg); | |
5179 | return; | |
5180 | } | |
5181 | ||
463d0183 JB |
5182 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5183 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5184 | return; |
5185 | ||
5186 | nla_put_failure: | |
5187 | genlmsg_cancel(msg, hdr); | |
5188 | nlmsg_free(msg); | |
5189 | } | |
5190 | ||
a3b8b056 JM |
5191 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5192 | struct net_device *netdev, const u8 *addr, | |
5193 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5194 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5195 | { |
5196 | struct sk_buff *msg; | |
5197 | void *hdr; | |
5198 | ||
e6d6e342 | 5199 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5200 | if (!msg) |
5201 | return; | |
5202 | ||
5203 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5204 | if (!hdr) { | |
5205 | nlmsg_free(msg); | |
5206 | return; | |
5207 | } | |
5208 | ||
5209 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5210 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5211 | if (addr) | |
5212 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5213 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5214 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5215 | if (tsc) | |
5216 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5217 | ||
5218 | if (genlmsg_end(msg, hdr) < 0) { | |
5219 | nlmsg_free(msg); | |
5220 | return; | |
5221 | } | |
5222 | ||
463d0183 JB |
5223 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5224 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5225 | return; |
5226 | ||
5227 | nla_put_failure: | |
5228 | genlmsg_cancel(msg, hdr); | |
5229 | nlmsg_free(msg); | |
5230 | } | |
5231 | ||
6bad8766 LR |
5232 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5233 | struct ieee80211_channel *channel_before, | |
5234 | struct ieee80211_channel *channel_after) | |
5235 | { | |
5236 | struct sk_buff *msg; | |
5237 | void *hdr; | |
5238 | struct nlattr *nl_freq; | |
5239 | ||
fd2120ca | 5240 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5241 | if (!msg) |
5242 | return; | |
5243 | ||
5244 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5245 | if (!hdr) { | |
5246 | nlmsg_free(msg); | |
5247 | return; | |
5248 | } | |
5249 | ||
5250 | /* | |
5251 | * Since we are applying the beacon hint to a wiphy we know its | |
5252 | * wiphy_idx is valid | |
5253 | */ | |
5254 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5255 | ||
5256 | /* Before */ | |
5257 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5258 | if (!nl_freq) | |
5259 | goto nla_put_failure; | |
5260 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5261 | goto nla_put_failure; | |
5262 | nla_nest_end(msg, nl_freq); | |
5263 | ||
5264 | /* After */ | |
5265 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5266 | if (!nl_freq) | |
5267 | goto nla_put_failure; | |
5268 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5269 | goto nla_put_failure; | |
5270 | nla_nest_end(msg, nl_freq); | |
5271 | ||
5272 | if (genlmsg_end(msg, hdr) < 0) { | |
5273 | nlmsg_free(msg); | |
5274 | return; | |
5275 | } | |
5276 | ||
463d0183 JB |
5277 | rcu_read_lock(); |
5278 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5279 | GFP_ATOMIC); | |
5280 | rcu_read_unlock(); | |
6bad8766 LR |
5281 | |
5282 | return; | |
5283 | ||
5284 | nla_put_failure: | |
5285 | genlmsg_cancel(msg, hdr); | |
5286 | nlmsg_free(msg); | |
5287 | } | |
5288 | ||
9588bbd5 JM |
5289 | static void nl80211_send_remain_on_chan_event( |
5290 | int cmd, struct cfg80211_registered_device *rdev, | |
5291 | struct net_device *netdev, u64 cookie, | |
5292 | struct ieee80211_channel *chan, | |
5293 | enum nl80211_channel_type channel_type, | |
5294 | unsigned int duration, gfp_t gfp) | |
5295 | { | |
5296 | struct sk_buff *msg; | |
5297 | void *hdr; | |
5298 | ||
5299 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5300 | if (!msg) | |
5301 | return; | |
5302 | ||
5303 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5304 | if (!hdr) { | |
5305 | nlmsg_free(msg); | |
5306 | return; | |
5307 | } | |
5308 | ||
5309 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5310 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5311 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5312 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5313 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5314 | ||
5315 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5316 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5317 | ||
5318 | if (genlmsg_end(msg, hdr) < 0) { | |
5319 | nlmsg_free(msg); | |
5320 | return; | |
5321 | } | |
5322 | ||
5323 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5324 | nl80211_mlme_mcgrp.id, gfp); | |
5325 | return; | |
5326 | ||
5327 | nla_put_failure: | |
5328 | genlmsg_cancel(msg, hdr); | |
5329 | nlmsg_free(msg); | |
5330 | } | |
5331 | ||
5332 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5333 | struct net_device *netdev, u64 cookie, | |
5334 | struct ieee80211_channel *chan, | |
5335 | enum nl80211_channel_type channel_type, | |
5336 | unsigned int duration, gfp_t gfp) | |
5337 | { | |
5338 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5339 | rdev, netdev, cookie, chan, | |
5340 | channel_type, duration, gfp); | |
5341 | } | |
5342 | ||
5343 | void nl80211_send_remain_on_channel_cancel( | |
5344 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5345 | u64 cookie, struct ieee80211_channel *chan, | |
5346 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5347 | { | |
5348 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5349 | rdev, netdev, cookie, chan, | |
5350 | channel_type, 0, gfp); | |
5351 | } | |
5352 | ||
98b62183 JB |
5353 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5354 | struct net_device *dev, const u8 *mac_addr, | |
5355 | struct station_info *sinfo, gfp_t gfp) | |
5356 | { | |
5357 | struct sk_buff *msg; | |
5358 | ||
5359 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5360 | if (!msg) | |
5361 | return; | |
5362 | ||
5363 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5364 | nlmsg_free(msg); | |
5365 | return; | |
5366 | } | |
5367 | ||
5368 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5369 | nl80211_mlme_mcgrp.id, gfp); | |
5370 | } | |
5371 | ||
55682965 JB |
5372 | /* initialisation/exit functions */ |
5373 | ||
5374 | int nl80211_init(void) | |
5375 | { | |
0d63cbb5 | 5376 | int err; |
55682965 | 5377 | |
0d63cbb5 MM |
5378 | err = genl_register_family_with_ops(&nl80211_fam, |
5379 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5380 | if (err) |
5381 | return err; | |
5382 | ||
55682965 JB |
5383 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5384 | if (err) | |
5385 | goto err_out; | |
5386 | ||
2a519311 JB |
5387 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5388 | if (err) | |
5389 | goto err_out; | |
5390 | ||
73d54c9e LR |
5391 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5392 | if (err) | |
5393 | goto err_out; | |
5394 | ||
6039f6d2 JM |
5395 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5396 | if (err) | |
5397 | goto err_out; | |
5398 | ||
aff89a9b JB |
5399 | #ifdef CONFIG_NL80211_TESTMODE |
5400 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5401 | if (err) | |
5402 | goto err_out; | |
5403 | #endif | |
5404 | ||
55682965 JB |
5405 | return 0; |
5406 | err_out: | |
5407 | genl_unregister_family(&nl80211_fam); | |
5408 | return err; | |
5409 | } | |
5410 | ||
5411 | void nl80211_exit(void) | |
5412 | { | |
5413 | genl_unregister_family(&nl80211_fam); | |
5414 | } |