Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 JB |
25 | |
26 | /* the netlink family */ | |
27 | static struct genl_family nl80211_fam = { | |
28 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
29 | .name = "nl80211", /* have users key off the name instead */ | |
30 | .hdrsize = 0, /* no private header */ | |
31 | .version = 1, /* no particular meaning now */ | |
32 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 33 | .netnsok = true, |
55682965 JB |
34 | }; |
35 | ||
79c97e97 | 36 | /* internal helper: get rdev and dev */ |
463d0183 | 37 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 38 | struct cfg80211_registered_device **rdev, |
55682965 JB |
39 | struct net_device **dev) |
40 | { | |
463d0183 | 41 | struct nlattr **attrs = info->attrs; |
55682965 JB |
42 | int ifindex; |
43 | ||
bba95fef | 44 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
45 | return -EINVAL; |
46 | ||
bba95fef | 47 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 48 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
49 | if (!*dev) |
50 | return -ENODEV; | |
51 | ||
463d0183 | 52 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 53 | if (IS_ERR(*rdev)) { |
55682965 | 54 | dev_put(*dev); |
79c97e97 | 55 | return PTR_ERR(*rdev); |
55682965 JB |
56 | } |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | /* policy for the attributes */ | |
b54452b0 | 62 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
63 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
64 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 65 | .len = 20-1 }, |
31888487 | 66 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 67 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 68 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
69 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
70 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
71 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
72 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 73 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
74 | |
75 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
76 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
77 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
78 | |
79 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 80 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 81 | |
b9454e83 | 82 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
83 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
84 | .len = WLAN_MAX_KEY_LEN }, | |
85 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
86 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
87 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 88 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
89 | |
90 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
91 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
92 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
93 | .len = IEEE80211_MAX_DATA_LEN }, | |
94 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
95 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
96 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
97 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
98 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
99 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
100 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 101 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 102 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 103 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
104 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
105 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
106 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 107 | |
b2e1b302 LR |
108 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
109 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
110 | ||
9f1ba906 JM |
111 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
112 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
113 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
114 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
115 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 116 | |
93da9cc1 | 117 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
118 | ||
36aedc90 JM |
119 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
120 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
121 | |
122 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
123 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
124 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
125 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
126 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
127 | |
128 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
129 | .len = IEEE80211_MAX_SSID_LEN }, | |
130 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
131 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 132 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 133 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 134 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
135 | [NL80211_ATTR_STA_FLAGS2] = { |
136 | .len = sizeof(struct nl80211_sta_flag_update), | |
137 | }, | |
3f77316c | 138 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
b23aa676 SO |
139 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
140 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
141 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 142 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 143 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
144 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
145 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
146 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
147 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 148 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
149 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
150 | .len = IEEE80211_MAX_DATA_LEN }, | |
151 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 152 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 153 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 154 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 155 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
55682965 JB |
156 | }; |
157 | ||
b9454e83 | 158 | /* policy for the attributes */ |
b54452b0 | 159 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 160 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
161 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
162 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
163 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
164 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
165 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
166 | }; | |
167 | ||
a043897a HS |
168 | /* ifidx get helper */ |
169 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
170 | { | |
171 | int res; | |
172 | ||
173 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
174 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
175 | nl80211_policy); | |
176 | if (res) | |
177 | return res; | |
178 | ||
179 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
180 | return -EINVAL; | |
181 | ||
182 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
183 | if (!res) | |
184 | return -EINVAL; | |
185 | return res; | |
186 | } | |
187 | ||
f4a11bb0 JB |
188 | /* IE validation */ |
189 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
190 | { | |
191 | const u8 *pos; | |
192 | int len; | |
193 | ||
194 | if (!attr) | |
195 | return true; | |
196 | ||
197 | pos = nla_data(attr); | |
198 | len = nla_len(attr); | |
199 | ||
200 | while (len) { | |
201 | u8 elemlen; | |
202 | ||
203 | if (len < 2) | |
204 | return false; | |
205 | len -= 2; | |
206 | ||
207 | elemlen = pos[1]; | |
208 | if (elemlen > len) | |
209 | return false; | |
210 | ||
211 | len -= elemlen; | |
212 | pos += 2 + elemlen; | |
213 | } | |
214 | ||
215 | return true; | |
216 | } | |
217 | ||
55682965 JB |
218 | /* message building helper */ |
219 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
220 | int flags, u8 cmd) | |
221 | { | |
222 | /* since there is no private header just add the generic one */ | |
223 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
224 | } | |
225 | ||
5dab3b8a LR |
226 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
227 | struct ieee80211_channel *chan) | |
228 | { | |
229 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
230 | chan->center_freq); | |
231 | ||
232 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
233 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
234 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
235 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
236 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
237 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
238 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
239 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
240 | ||
241 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
242 | DBM_TO_MBM(chan->max_power)); | |
243 | ||
244 | return 0; | |
245 | ||
246 | nla_put_failure: | |
247 | return -ENOBUFS; | |
248 | } | |
249 | ||
55682965 JB |
250 | /* netlink command implementations */ |
251 | ||
b9454e83 JB |
252 | struct key_parse { |
253 | struct key_params p; | |
254 | int idx; | |
255 | bool def, defmgmt; | |
256 | }; | |
257 | ||
258 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
259 | { | |
260 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
261 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
262 | nl80211_key_policy); | |
263 | if (err) | |
264 | return err; | |
265 | ||
266 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
267 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
268 | ||
269 | if (tb[NL80211_KEY_IDX]) | |
270 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
271 | ||
272 | if (tb[NL80211_KEY_DATA]) { | |
273 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
274 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
275 | } | |
276 | ||
277 | if (tb[NL80211_KEY_SEQ]) { | |
278 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
279 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
280 | } | |
281 | ||
282 | if (tb[NL80211_KEY_CIPHER]) | |
283 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
284 | ||
285 | return 0; | |
286 | } | |
287 | ||
288 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
289 | { | |
290 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
291 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
292 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
293 | } | |
294 | ||
295 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
296 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
297 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
298 | } | |
299 | ||
300 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
301 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
302 | ||
303 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
304 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
305 | ||
306 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
307 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
313 | { | |
314 | int err; | |
315 | ||
316 | memset(k, 0, sizeof(*k)); | |
317 | k->idx = -1; | |
318 | ||
319 | if (info->attrs[NL80211_ATTR_KEY]) | |
320 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
321 | else | |
322 | err = nl80211_parse_key_old(info, k); | |
323 | ||
324 | if (err) | |
325 | return err; | |
326 | ||
327 | if (k->def && k->defmgmt) | |
328 | return -EINVAL; | |
329 | ||
330 | if (k->idx != -1) { | |
331 | if (k->defmgmt) { | |
332 | if (k->idx < 4 || k->idx > 5) | |
333 | return -EINVAL; | |
334 | } else if (k->def) { | |
335 | if (k->idx < 0 || k->idx > 3) | |
336 | return -EINVAL; | |
337 | } else { | |
338 | if (k->idx < 0 || k->idx > 5) | |
339 | return -EINVAL; | |
340 | } | |
341 | } | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
fffd0934 JB |
346 | static struct cfg80211_cached_keys * |
347 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
348 | struct nlattr *keys) | |
349 | { | |
350 | struct key_parse parse; | |
351 | struct nlattr *key; | |
352 | struct cfg80211_cached_keys *result; | |
353 | int rem, err, def = 0; | |
354 | ||
355 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
356 | if (!result) | |
357 | return ERR_PTR(-ENOMEM); | |
358 | ||
359 | result->def = -1; | |
360 | result->defmgmt = -1; | |
361 | ||
362 | nla_for_each_nested(key, keys, rem) { | |
363 | memset(&parse, 0, sizeof(parse)); | |
364 | parse.idx = -1; | |
365 | ||
366 | err = nl80211_parse_key_new(key, &parse); | |
367 | if (err) | |
368 | goto error; | |
369 | err = -EINVAL; | |
370 | if (!parse.p.key) | |
371 | goto error; | |
372 | if (parse.idx < 0 || parse.idx > 4) | |
373 | goto error; | |
374 | if (parse.def) { | |
375 | if (def) | |
376 | goto error; | |
377 | def = 1; | |
378 | result->def = parse.idx; | |
379 | } else if (parse.defmgmt) | |
380 | goto error; | |
381 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
382 | parse.idx, NULL); | |
383 | if (err) | |
384 | goto error; | |
385 | result->params[parse.idx].cipher = parse.p.cipher; | |
386 | result->params[parse.idx].key_len = parse.p.key_len; | |
387 | result->params[parse.idx].key = result->data[parse.idx]; | |
388 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
389 | } | |
390 | ||
391 | return result; | |
392 | error: | |
393 | kfree(result); | |
394 | return ERR_PTR(err); | |
395 | } | |
396 | ||
397 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
398 | { | |
399 | ASSERT_WDEV_LOCK(wdev); | |
400 | ||
401 | if (!netif_running(wdev->netdev)) | |
402 | return -ENETDOWN; | |
403 | ||
404 | switch (wdev->iftype) { | |
405 | case NL80211_IFTYPE_AP: | |
406 | case NL80211_IFTYPE_AP_VLAN: | |
407 | break; | |
408 | case NL80211_IFTYPE_ADHOC: | |
409 | if (!wdev->current_bss) | |
410 | return -ENOLINK; | |
411 | break; | |
412 | case NL80211_IFTYPE_STATION: | |
413 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
414 | return -ENOLINK; | |
415 | break; | |
416 | default: | |
417 | return -EINVAL; | |
418 | } | |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
55682965 JB |
423 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
424 | struct cfg80211_registered_device *dev) | |
425 | { | |
426 | void *hdr; | |
ee688b00 JB |
427 | struct nlattr *nl_bands, *nl_band; |
428 | struct nlattr *nl_freqs, *nl_freq; | |
429 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 430 | struct nlattr *nl_modes; |
8fdc621d | 431 | struct nlattr *nl_cmds; |
ee688b00 JB |
432 | enum ieee80211_band band; |
433 | struct ieee80211_channel *chan; | |
434 | struct ieee80211_rate *rate; | |
435 | int i; | |
f59ac048 | 436 | u16 ifmodes = dev->wiphy.interface_modes; |
55682965 JB |
437 | |
438 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
439 | if (!hdr) | |
440 | return -1; | |
441 | ||
b5850a7a | 442 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 443 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 444 | |
f5ea9120 JB |
445 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
446 | cfg80211_rdev_list_generation); | |
447 | ||
b9a5f8ca JM |
448 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
449 | dev->wiphy.retry_short); | |
450 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
451 | dev->wiphy.retry_long); | |
452 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
453 | dev->wiphy.frag_threshold); | |
454 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
455 | dev->wiphy.rts_threshold); | |
81077e82 LT |
456 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
457 | dev->wiphy.coverage_class); | |
b9a5f8ca | 458 | |
2a519311 JB |
459 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
460 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
461 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
462 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 463 | |
25e47c18 JB |
464 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
465 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
466 | dev->wiphy.cipher_suites); | |
467 | ||
67fbb16b SO |
468 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
469 | dev->wiphy.max_num_pmkids); | |
470 | ||
f59ac048 LR |
471 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
472 | if (!nl_modes) | |
473 | goto nla_put_failure; | |
474 | ||
475 | i = 0; | |
476 | while (ifmodes) { | |
477 | if (ifmodes & 1) | |
478 | NLA_PUT_FLAG(msg, i); | |
479 | ifmodes >>= 1; | |
480 | i++; | |
481 | } | |
482 | ||
483 | nla_nest_end(msg, nl_modes); | |
484 | ||
ee688b00 JB |
485 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
486 | if (!nl_bands) | |
487 | goto nla_put_failure; | |
488 | ||
489 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
490 | if (!dev->wiphy.bands[band]) | |
491 | continue; | |
492 | ||
493 | nl_band = nla_nest_start(msg, band); | |
494 | if (!nl_band) | |
495 | goto nla_put_failure; | |
496 | ||
d51626df JB |
497 | /* add HT info */ |
498 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
499 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
500 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
501 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
502 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
503 | dev->wiphy.bands[band]->ht_cap.cap); | |
504 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
505 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
506 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
507 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
508 | } | |
509 | ||
ee688b00 JB |
510 | /* add frequencies */ |
511 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
512 | if (!nl_freqs) | |
513 | goto nla_put_failure; | |
514 | ||
515 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
516 | nl_freq = nla_nest_start(msg, i); | |
517 | if (!nl_freq) | |
518 | goto nla_put_failure; | |
519 | ||
520 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
521 | |
522 | if (nl80211_msg_put_channel(msg, chan)) | |
523 | goto nla_put_failure; | |
e2f367f2 | 524 | |
ee688b00 JB |
525 | nla_nest_end(msg, nl_freq); |
526 | } | |
527 | ||
528 | nla_nest_end(msg, nl_freqs); | |
529 | ||
530 | /* add bitrates */ | |
531 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
532 | if (!nl_rates) | |
533 | goto nla_put_failure; | |
534 | ||
535 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
536 | nl_rate = nla_nest_start(msg, i); | |
537 | if (!nl_rate) | |
538 | goto nla_put_failure; | |
539 | ||
540 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
541 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
542 | rate->bitrate); | |
543 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
544 | NLA_PUT_FLAG(msg, | |
545 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
546 | ||
547 | nla_nest_end(msg, nl_rate); | |
548 | } | |
549 | ||
550 | nla_nest_end(msg, nl_rates); | |
551 | ||
552 | nla_nest_end(msg, nl_band); | |
553 | } | |
554 | nla_nest_end(msg, nl_bands); | |
555 | ||
8fdc621d JB |
556 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
557 | if (!nl_cmds) | |
558 | goto nla_put_failure; | |
559 | ||
560 | i = 0; | |
561 | #define CMD(op, n) \ | |
562 | do { \ | |
563 | if (dev->ops->op) { \ | |
564 | i++; \ | |
565 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
566 | } \ | |
567 | } while (0) | |
568 | ||
569 | CMD(add_virtual_intf, NEW_INTERFACE); | |
570 | CMD(change_virtual_intf, SET_INTERFACE); | |
571 | CMD(add_key, NEW_KEY); | |
572 | CMD(add_beacon, NEW_BEACON); | |
573 | CMD(add_station, NEW_STATION); | |
574 | CMD(add_mpath, NEW_MPATH); | |
575 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
576 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
577 | CMD(auth, AUTHENTICATE); |
578 | CMD(assoc, ASSOCIATE); | |
579 | CMD(deauth, DEAUTHENTICATE); | |
580 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 581 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
582 | CMD(set_pmksa, SET_PMKSA); |
583 | CMD(del_pmksa, DEL_PMKSA); | |
584 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 585 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 586 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
026331c4 | 587 | CMD(action, ACTION); |
5be83de5 | 588 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
589 | i++; |
590 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
591 | } | |
f444de05 | 592 | CMD(set_channel, SET_CHANNEL); |
8fdc621d JB |
593 | |
594 | #undef CMD | |
b23aa676 | 595 | |
6829c878 | 596 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
597 | i++; |
598 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
599 | } | |
600 | ||
6829c878 | 601 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
602 | i++; |
603 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
604 | } | |
605 | ||
8fdc621d JB |
606 | nla_nest_end(msg, nl_cmds); |
607 | ||
55682965 JB |
608 | return genlmsg_end(msg, hdr); |
609 | ||
610 | nla_put_failure: | |
bc3ed28c TG |
611 | genlmsg_cancel(msg, hdr); |
612 | return -EMSGSIZE; | |
55682965 JB |
613 | } |
614 | ||
615 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
616 | { | |
617 | int idx = 0; | |
618 | int start = cb->args[0]; | |
619 | struct cfg80211_registered_device *dev; | |
620 | ||
a1794390 | 621 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 622 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
623 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
624 | continue; | |
b4637271 | 625 | if (++idx <= start) |
55682965 JB |
626 | continue; |
627 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
628 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
629 | dev) < 0) { |
630 | idx--; | |
55682965 | 631 | break; |
b4637271 | 632 | } |
55682965 | 633 | } |
a1794390 | 634 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
635 | |
636 | cb->args[0] = idx; | |
637 | ||
638 | return skb->len; | |
639 | } | |
640 | ||
641 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
642 | { | |
643 | struct sk_buff *msg; | |
644 | struct cfg80211_registered_device *dev; | |
645 | ||
646 | dev = cfg80211_get_dev_from_info(info); | |
647 | if (IS_ERR(dev)) | |
648 | return PTR_ERR(dev); | |
649 | ||
fd2120ca | 650 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
651 | if (!msg) |
652 | goto out_err; | |
653 | ||
654 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
655 | goto out_free; | |
656 | ||
4d0c8aea | 657 | cfg80211_unlock_rdev(dev); |
55682965 | 658 | |
134e6375 | 659 | return genlmsg_reply(msg, info); |
55682965 JB |
660 | |
661 | out_free: | |
662 | nlmsg_free(msg); | |
663 | out_err: | |
4d0c8aea | 664 | cfg80211_unlock_rdev(dev); |
55682965 JB |
665 | return -ENOBUFS; |
666 | } | |
667 | ||
31888487 JM |
668 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
669 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
670 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
671 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
672 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
673 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
674 | }; | |
675 | ||
676 | static int parse_txq_params(struct nlattr *tb[], | |
677 | struct ieee80211_txq_params *txq_params) | |
678 | { | |
679 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
680 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
681 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
682 | return -EINVAL; | |
683 | ||
684 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
685 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
686 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
687 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
688 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
f444de05 JB |
693 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
694 | { | |
695 | /* | |
696 | * You can only set the channel explicitly for AP, mesh | |
697 | * and WDS type interfaces; all others have their channel | |
698 | * managed via their respective "establish a connection" | |
699 | * command (connect, join, ...) | |
700 | * | |
701 | * Monitors are special as they are normally slaved to | |
702 | * whatever else is going on, so they behave as though | |
703 | * you tried setting the wiphy channel itself. | |
704 | */ | |
705 | return !wdev || | |
706 | wdev->iftype == NL80211_IFTYPE_AP || | |
707 | wdev->iftype == NL80211_IFTYPE_WDS || | |
708 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
709 | wdev->iftype == NL80211_IFTYPE_MONITOR; | |
710 | } | |
711 | ||
712 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
713 | struct wireless_dev *wdev, | |
714 | struct genl_info *info) | |
715 | { | |
716 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
717 | u32 freq; | |
718 | int result; | |
719 | ||
720 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
721 | return -EINVAL; | |
722 | ||
723 | if (!nl80211_can_set_dev_channel(wdev)) | |
724 | return -EOPNOTSUPP; | |
725 | ||
726 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
727 | channel_type = nla_get_u32(info->attrs[ | |
728 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
729 | if (channel_type != NL80211_CHAN_NO_HT && | |
730 | channel_type != NL80211_CHAN_HT20 && | |
731 | channel_type != NL80211_CHAN_HT40PLUS && | |
732 | channel_type != NL80211_CHAN_HT40MINUS) | |
733 | return -EINVAL; | |
734 | } | |
735 | ||
736 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
737 | ||
738 | mutex_lock(&rdev->devlist_mtx); | |
739 | if (wdev) { | |
740 | wdev_lock(wdev); | |
741 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
742 | wdev_unlock(wdev); | |
743 | } else { | |
744 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
745 | } | |
746 | mutex_unlock(&rdev->devlist_mtx); | |
747 | ||
748 | return result; | |
749 | } | |
750 | ||
751 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
752 | { | |
753 | struct cfg80211_registered_device *rdev; | |
754 | struct net_device *netdev; | |
755 | int result; | |
756 | ||
757 | rtnl_lock(); | |
758 | ||
759 | result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev); | |
760 | if (result) | |
761 | goto unlock; | |
762 | ||
763 | result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); | |
764 | ||
765 | unlock: | |
766 | rtnl_unlock(); | |
767 | ||
768 | return result; | |
769 | } | |
770 | ||
55682965 JB |
771 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
772 | { | |
773 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
774 | struct net_device *netdev = NULL; |
775 | struct wireless_dev *wdev; | |
776 | int result, rem_txq_params = 0; | |
31888487 | 777 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
778 | u32 changed; |
779 | u8 retry_short = 0, retry_long = 0; | |
780 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 781 | u8 coverage_class = 0; |
55682965 | 782 | |
4bbf4d56 | 783 | rtnl_lock(); |
55682965 | 784 | |
f444de05 JB |
785 | /* |
786 | * Try to find the wiphy and netdev. Normally this | |
787 | * function shouldn't need the netdev, but this is | |
788 | * done for backward compatibility -- previously | |
789 | * setting the channel was done per wiphy, but now | |
790 | * it is per netdev. Previous userland like hostapd | |
791 | * also passed a netdev to set_wiphy, so that it is | |
792 | * possible to let that go to the right netdev! | |
793 | */ | |
4bbf4d56 JB |
794 | mutex_lock(&cfg80211_mutex); |
795 | ||
f444de05 JB |
796 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
797 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
798 | ||
799 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
800 | if (netdev && netdev->ieee80211_ptr) { | |
801 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
802 | mutex_lock(&rdev->mtx); | |
803 | } else | |
804 | netdev = NULL; | |
4bbf4d56 JB |
805 | } |
806 | ||
f444de05 JB |
807 | if (!netdev) { |
808 | rdev = __cfg80211_rdev_from_info(info); | |
809 | if (IS_ERR(rdev)) { | |
810 | mutex_unlock(&cfg80211_mutex); | |
811 | result = PTR_ERR(rdev); | |
812 | goto unlock; | |
813 | } | |
814 | wdev = NULL; | |
815 | netdev = NULL; | |
816 | result = 0; | |
817 | ||
818 | mutex_lock(&rdev->mtx); | |
819 | } else if (netif_running(netdev) && | |
820 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
821 | wdev = netdev->ieee80211_ptr; | |
822 | else | |
823 | wdev = NULL; | |
824 | ||
825 | /* | |
826 | * end workaround code, by now the rdev is available | |
827 | * and locked, and wdev may or may not be NULL. | |
828 | */ | |
4bbf4d56 JB |
829 | |
830 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
831 | result = cfg80211_dev_rename( |
832 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
833 | |
834 | mutex_unlock(&cfg80211_mutex); | |
835 | ||
836 | if (result) | |
837 | goto bad_res; | |
31888487 JM |
838 | |
839 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
840 | struct ieee80211_txq_params txq_params; | |
841 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
842 | ||
843 | if (!rdev->ops->set_txq_params) { | |
844 | result = -EOPNOTSUPP; | |
845 | goto bad_res; | |
846 | } | |
847 | ||
848 | nla_for_each_nested(nl_txq_params, | |
849 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
850 | rem_txq_params) { | |
851 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
852 | nla_data(nl_txq_params), | |
853 | nla_len(nl_txq_params), | |
854 | txq_params_policy); | |
855 | result = parse_txq_params(tb, &txq_params); | |
856 | if (result) | |
857 | goto bad_res; | |
858 | ||
859 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
860 | &txq_params); | |
861 | if (result) | |
862 | goto bad_res; | |
863 | } | |
864 | } | |
55682965 | 865 | |
72bdcf34 | 866 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 867 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
868 | if (result) |
869 | goto bad_res; | |
870 | } | |
871 | ||
b9a5f8ca JM |
872 | changed = 0; |
873 | ||
874 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
875 | retry_short = nla_get_u8( | |
876 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
877 | if (retry_short == 0) { | |
878 | result = -EINVAL; | |
879 | goto bad_res; | |
880 | } | |
881 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
882 | } | |
883 | ||
884 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
885 | retry_long = nla_get_u8( | |
886 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
887 | if (retry_long == 0) { | |
888 | result = -EINVAL; | |
889 | goto bad_res; | |
890 | } | |
891 | changed |= WIPHY_PARAM_RETRY_LONG; | |
892 | } | |
893 | ||
894 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
895 | frag_threshold = nla_get_u32( | |
896 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
897 | if (frag_threshold < 256) { | |
898 | result = -EINVAL; | |
899 | goto bad_res; | |
900 | } | |
901 | if (frag_threshold != (u32) -1) { | |
902 | /* | |
903 | * Fragments (apart from the last one) are required to | |
904 | * have even length. Make the fragmentation code | |
905 | * simpler by stripping LSB should someone try to use | |
906 | * odd threshold value. | |
907 | */ | |
908 | frag_threshold &= ~0x1; | |
909 | } | |
910 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
911 | } | |
912 | ||
913 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
914 | rts_threshold = nla_get_u32( | |
915 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
916 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
917 | } | |
918 | ||
81077e82 LT |
919 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
920 | coverage_class = nla_get_u8( | |
921 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
922 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
923 | } | |
924 | ||
b9a5f8ca JM |
925 | if (changed) { |
926 | u8 old_retry_short, old_retry_long; | |
927 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 928 | u8 old_coverage_class; |
b9a5f8ca JM |
929 | |
930 | if (!rdev->ops->set_wiphy_params) { | |
931 | result = -EOPNOTSUPP; | |
932 | goto bad_res; | |
933 | } | |
934 | ||
935 | old_retry_short = rdev->wiphy.retry_short; | |
936 | old_retry_long = rdev->wiphy.retry_long; | |
937 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
938 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 939 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
940 | |
941 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
942 | rdev->wiphy.retry_short = retry_short; | |
943 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
944 | rdev->wiphy.retry_long = retry_long; | |
945 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
946 | rdev->wiphy.frag_threshold = frag_threshold; | |
947 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
948 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
949 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
950 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
951 | |
952 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
953 | if (result) { | |
954 | rdev->wiphy.retry_short = old_retry_short; | |
955 | rdev->wiphy.retry_long = old_retry_long; | |
956 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
957 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 958 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
959 | } |
960 | } | |
72bdcf34 | 961 | |
306d6112 | 962 | bad_res: |
4bbf4d56 | 963 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
964 | if (netdev) |
965 | dev_put(netdev); | |
4bbf4d56 JB |
966 | unlock: |
967 | rtnl_unlock(); | |
55682965 JB |
968 | return result; |
969 | } | |
970 | ||
971 | ||
972 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 973 | struct cfg80211_registered_device *rdev, |
55682965 JB |
974 | struct net_device *dev) |
975 | { | |
976 | void *hdr; | |
977 | ||
978 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
979 | if (!hdr) | |
980 | return -1; | |
981 | ||
982 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 983 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 984 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 985 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
986 | |
987 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
988 | rdev->devlist_generation ^ | |
989 | (cfg80211_rdev_list_generation << 2)); | |
990 | ||
55682965 JB |
991 | return genlmsg_end(msg, hdr); |
992 | ||
993 | nla_put_failure: | |
bc3ed28c TG |
994 | genlmsg_cancel(msg, hdr); |
995 | return -EMSGSIZE; | |
55682965 JB |
996 | } |
997 | ||
998 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
999 | { | |
1000 | int wp_idx = 0; | |
1001 | int if_idx = 0; | |
1002 | int wp_start = cb->args[0]; | |
1003 | int if_start = cb->args[1]; | |
f5ea9120 | 1004 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1005 | struct wireless_dev *wdev; |
1006 | ||
a1794390 | 1007 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1008 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1009 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1010 | continue; |
bba95fef JB |
1011 | if (wp_idx < wp_start) { |
1012 | wp_idx++; | |
55682965 | 1013 | continue; |
bba95fef | 1014 | } |
55682965 JB |
1015 | if_idx = 0; |
1016 | ||
f5ea9120 JB |
1017 | mutex_lock(&rdev->devlist_mtx); |
1018 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1019 | if (if_idx < if_start) { |
1020 | if_idx++; | |
55682965 | 1021 | continue; |
bba95fef | 1022 | } |
55682965 JB |
1023 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1024 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1025 | rdev, wdev->netdev) < 0) { |
1026 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1027 | goto out; |
1028 | } | |
1029 | if_idx++; | |
55682965 | 1030 | } |
f5ea9120 | 1031 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1032 | |
1033 | wp_idx++; | |
55682965 | 1034 | } |
bba95fef | 1035 | out: |
a1794390 | 1036 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1037 | |
1038 | cb->args[0] = wp_idx; | |
1039 | cb->args[1] = if_idx; | |
1040 | ||
1041 | return skb->len; | |
1042 | } | |
1043 | ||
1044 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1045 | { | |
1046 | struct sk_buff *msg; | |
1047 | struct cfg80211_registered_device *dev; | |
1048 | struct net_device *netdev; | |
1049 | int err; | |
1050 | ||
463d0183 | 1051 | err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); |
55682965 JB |
1052 | if (err) |
1053 | return err; | |
1054 | ||
fd2120ca | 1055 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
1056 | if (!msg) |
1057 | goto out_err; | |
1058 | ||
d726405a JB |
1059 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
1060 | dev, netdev) < 0) | |
55682965 JB |
1061 | goto out_free; |
1062 | ||
1063 | dev_put(netdev); | |
4d0c8aea | 1064 | cfg80211_unlock_rdev(dev); |
55682965 | 1065 | |
134e6375 | 1066 | return genlmsg_reply(msg, info); |
55682965 JB |
1067 | |
1068 | out_free: | |
1069 | nlmsg_free(msg); | |
1070 | out_err: | |
1071 | dev_put(netdev); | |
4d0c8aea | 1072 | cfg80211_unlock_rdev(dev); |
55682965 JB |
1073 | return -ENOBUFS; |
1074 | } | |
1075 | ||
66f7ac50 MW |
1076 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1077 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1078 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1079 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1080 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1081 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1082 | }; | |
1083 | ||
1084 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1085 | { | |
1086 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1087 | int flag; | |
1088 | ||
1089 | *mntrflags = 0; | |
1090 | ||
1091 | if (!nla) | |
1092 | return -EINVAL; | |
1093 | ||
1094 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1095 | nla, mntr_flags_policy)) | |
1096 | return -EINVAL; | |
1097 | ||
1098 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1099 | if (flags[flag]) | |
1100 | *mntrflags |= (1<<flag); | |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
9bc383de | 1105 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1106 | struct net_device *netdev, u8 use_4addr, |
1107 | enum nl80211_iftype iftype) | |
9bc383de | 1108 | { |
ad4bb6f8 JB |
1109 | if (!use_4addr) { |
1110 | if (netdev && netdev->br_port) | |
1111 | return -EBUSY; | |
9bc383de | 1112 | return 0; |
ad4bb6f8 | 1113 | } |
9bc383de JB |
1114 | |
1115 | switch (iftype) { | |
1116 | case NL80211_IFTYPE_AP_VLAN: | |
1117 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1118 | return 0; | |
1119 | break; | |
1120 | case NL80211_IFTYPE_STATION: | |
1121 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1122 | return 0; | |
1123 | break; | |
1124 | default: | |
1125 | break; | |
1126 | } | |
1127 | ||
1128 | return -EOPNOTSUPP; | |
1129 | } | |
1130 | ||
55682965 JB |
1131 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1132 | { | |
79c97e97 | 1133 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1134 | struct vif_params params; |
e36d56b6 | 1135 | int err; |
04a773ad | 1136 | enum nl80211_iftype otype, ntype; |
55682965 | 1137 | struct net_device *dev; |
92ffe055 | 1138 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1139 | bool change = false; |
55682965 | 1140 | |
2ec600d6 LCC |
1141 | memset(¶ms, 0, sizeof(params)); |
1142 | ||
3b85875a JB |
1143 | rtnl_lock(); |
1144 | ||
463d0183 | 1145 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1146 | if (err) |
3b85875a JB |
1147 | goto unlock_rtnl; |
1148 | ||
04a773ad | 1149 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1150 | |
723b038d | 1151 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1152 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1153 | if (otype != ntype) |
ac7f9cfa | 1154 | change = true; |
04a773ad | 1155 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 1156 | err = -EINVAL; |
723b038d | 1157 | goto unlock; |
ac7f9cfa | 1158 | } |
723b038d JB |
1159 | } |
1160 | ||
92ffe055 | 1161 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1162 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1163 | err = -EINVAL; |
1164 | goto unlock; | |
1165 | } | |
2ec600d6 LCC |
1166 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1167 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1168 | change = true; |
2ec600d6 LCC |
1169 | } |
1170 | ||
8b787643 FF |
1171 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1172 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1173 | change = true; | |
ad4bb6f8 | 1174 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de JB |
1175 | if (err) |
1176 | goto unlock; | |
8b787643 FF |
1177 | } else { |
1178 | params.use_4addr = -1; | |
1179 | } | |
1180 | ||
92ffe055 | 1181 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1182 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1183 | err = -EINVAL; |
1184 | goto unlock; | |
1185 | } | |
1186 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1187 | &_flags); | |
ac7f9cfa JB |
1188 | if (err) |
1189 | goto unlock; | |
1190 | ||
1191 | flags = &_flags; | |
1192 | change = true; | |
92ffe055 | 1193 | } |
3b85875a | 1194 | |
ac7f9cfa | 1195 | if (change) |
3d54d255 | 1196 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1197 | else |
1198 | err = 0; | |
60719ffd | 1199 | |
9bc383de JB |
1200 | if (!err && params.use_4addr != -1) |
1201 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1202 | ||
55682965 | 1203 | unlock: |
e36d56b6 | 1204 | dev_put(dev); |
79c97e97 | 1205 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1206 | unlock_rtnl: |
1207 | rtnl_unlock(); | |
55682965 JB |
1208 | return err; |
1209 | } | |
1210 | ||
1211 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1212 | { | |
79c97e97 | 1213 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1214 | struct vif_params params; |
55682965 JB |
1215 | int err; |
1216 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1217 | u32 flags; |
55682965 | 1218 | |
2ec600d6 LCC |
1219 | memset(¶ms, 0, sizeof(params)); |
1220 | ||
55682965 JB |
1221 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1222 | return -EINVAL; | |
1223 | ||
1224 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1225 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1226 | if (type > NL80211_IFTYPE_MAX) | |
1227 | return -EINVAL; | |
1228 | } | |
1229 | ||
3b85875a JB |
1230 | rtnl_lock(); |
1231 | ||
79c97e97 JB |
1232 | rdev = cfg80211_get_dev_from_info(info); |
1233 | if (IS_ERR(rdev)) { | |
1234 | err = PTR_ERR(rdev); | |
3b85875a JB |
1235 | goto unlock_rtnl; |
1236 | } | |
55682965 | 1237 | |
79c97e97 JB |
1238 | if (!rdev->ops->add_virtual_intf || |
1239 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1240 | err = -EOPNOTSUPP; |
1241 | goto unlock; | |
1242 | } | |
1243 | ||
2ec600d6 LCC |
1244 | if (type == NL80211_IFTYPE_MESH_POINT && |
1245 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1246 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1247 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1248 | } | |
1249 | ||
9bc383de | 1250 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1251 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1252 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de JB |
1253 | if (err) |
1254 | goto unlock; | |
1255 | } | |
8b787643 | 1256 | |
66f7ac50 MW |
1257 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1258 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1259 | &flags); | |
79c97e97 | 1260 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1261 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1262 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1263 | |
55682965 | 1264 | unlock: |
79c97e97 | 1265 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1266 | unlock_rtnl: |
1267 | rtnl_unlock(); | |
55682965 JB |
1268 | return err; |
1269 | } | |
1270 | ||
1271 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1272 | { | |
79c97e97 | 1273 | struct cfg80211_registered_device *rdev; |
463d0183 | 1274 | int err; |
55682965 JB |
1275 | struct net_device *dev; |
1276 | ||
3b85875a JB |
1277 | rtnl_lock(); |
1278 | ||
463d0183 | 1279 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1280 | if (err) |
3b85875a | 1281 | goto unlock_rtnl; |
55682965 | 1282 | |
79c97e97 | 1283 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1284 | err = -EOPNOTSUPP; |
1285 | goto out; | |
1286 | } | |
1287 | ||
463d0183 | 1288 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1289 | |
1290 | out: | |
79c97e97 | 1291 | cfg80211_unlock_rdev(rdev); |
463d0183 | 1292 | dev_put(dev); |
3b85875a JB |
1293 | unlock_rtnl: |
1294 | rtnl_unlock(); | |
55682965 JB |
1295 | return err; |
1296 | } | |
1297 | ||
41ade00f JB |
1298 | struct get_key_cookie { |
1299 | struct sk_buff *msg; | |
1300 | int error; | |
b9454e83 | 1301 | int idx; |
41ade00f JB |
1302 | }; |
1303 | ||
1304 | static void get_key_callback(void *c, struct key_params *params) | |
1305 | { | |
b9454e83 | 1306 | struct nlattr *key; |
41ade00f JB |
1307 | struct get_key_cookie *cookie = c; |
1308 | ||
1309 | if (params->key) | |
1310 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1311 | params->key_len, params->key); | |
1312 | ||
1313 | if (params->seq) | |
1314 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1315 | params->seq_len, params->seq); | |
1316 | ||
1317 | if (params->cipher) | |
1318 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1319 | params->cipher); | |
1320 | ||
b9454e83 JB |
1321 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1322 | if (!key) | |
1323 | goto nla_put_failure; | |
1324 | ||
1325 | if (params->key) | |
1326 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1327 | params->key_len, params->key); | |
1328 | ||
1329 | if (params->seq) | |
1330 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1331 | params->seq_len, params->seq); | |
1332 | ||
1333 | if (params->cipher) | |
1334 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1335 | params->cipher); | |
1336 | ||
1337 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1338 | ||
1339 | nla_nest_end(cookie->msg, key); | |
1340 | ||
41ade00f JB |
1341 | return; |
1342 | nla_put_failure: | |
1343 | cookie->error = 1; | |
1344 | } | |
1345 | ||
1346 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1347 | { | |
79c97e97 | 1348 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1349 | int err; |
1350 | struct net_device *dev; | |
1351 | u8 key_idx = 0; | |
1352 | u8 *mac_addr = NULL; | |
1353 | struct get_key_cookie cookie = { | |
1354 | .error = 0, | |
1355 | }; | |
1356 | void *hdr; | |
1357 | struct sk_buff *msg; | |
1358 | ||
1359 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1360 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1361 | ||
3cfcf6ac | 1362 | if (key_idx > 5) |
41ade00f JB |
1363 | return -EINVAL; |
1364 | ||
1365 | if (info->attrs[NL80211_ATTR_MAC]) | |
1366 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1367 | ||
3b85875a JB |
1368 | rtnl_lock(); |
1369 | ||
463d0183 | 1370 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1371 | if (err) |
3b85875a | 1372 | goto unlock_rtnl; |
41ade00f | 1373 | |
79c97e97 | 1374 | if (!rdev->ops->get_key) { |
41ade00f JB |
1375 | err = -EOPNOTSUPP; |
1376 | goto out; | |
1377 | } | |
1378 | ||
fd2120ca | 1379 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1380 | if (!msg) { |
1381 | err = -ENOMEM; | |
1382 | goto out; | |
1383 | } | |
1384 | ||
1385 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1386 | NL80211_CMD_NEW_KEY); | |
1387 | ||
1388 | if (IS_ERR(hdr)) { | |
1389 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1390 | goto free_msg; |
41ade00f JB |
1391 | } |
1392 | ||
1393 | cookie.msg = msg; | |
b9454e83 | 1394 | cookie.idx = key_idx; |
41ade00f JB |
1395 | |
1396 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1397 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1398 | if (mac_addr) | |
1399 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1400 | ||
79c97e97 | 1401 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1402 | &cookie, get_key_callback); |
41ade00f JB |
1403 | |
1404 | if (err) | |
6c95e2a2 | 1405 | goto free_msg; |
41ade00f JB |
1406 | |
1407 | if (cookie.error) | |
1408 | goto nla_put_failure; | |
1409 | ||
1410 | genlmsg_end(msg, hdr); | |
134e6375 | 1411 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1412 | goto out; |
1413 | ||
1414 | nla_put_failure: | |
1415 | err = -ENOBUFS; | |
6c95e2a2 | 1416 | free_msg: |
41ade00f JB |
1417 | nlmsg_free(msg); |
1418 | out: | |
79c97e97 | 1419 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1420 | dev_put(dev); |
3b85875a JB |
1421 | unlock_rtnl: |
1422 | rtnl_unlock(); | |
1423 | ||
41ade00f JB |
1424 | return err; |
1425 | } | |
1426 | ||
1427 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1428 | { | |
79c97e97 | 1429 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1430 | struct key_parse key; |
41ade00f JB |
1431 | int err; |
1432 | struct net_device *dev; | |
3cfcf6ac JM |
1433 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1434 | u8 key_index); | |
41ade00f | 1435 | |
b9454e83 JB |
1436 | err = nl80211_parse_key(info, &key); |
1437 | if (err) | |
1438 | return err; | |
41ade00f | 1439 | |
b9454e83 | 1440 | if (key.idx < 0) |
41ade00f JB |
1441 | return -EINVAL; |
1442 | ||
b9454e83 JB |
1443 | /* only support setting default key */ |
1444 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1445 | return -EINVAL; |
1446 | ||
3b85875a JB |
1447 | rtnl_lock(); |
1448 | ||
463d0183 | 1449 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1450 | if (err) |
3b85875a | 1451 | goto unlock_rtnl; |
41ade00f | 1452 | |
b9454e83 | 1453 | if (key.def) |
79c97e97 | 1454 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1455 | else |
79c97e97 | 1456 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1457 | |
1458 | if (!func) { | |
41ade00f JB |
1459 | err = -EOPNOTSUPP; |
1460 | goto out; | |
1461 | } | |
1462 | ||
fffd0934 JB |
1463 | wdev_lock(dev->ieee80211_ptr); |
1464 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1465 | if (!err) | |
1466 | err = func(&rdev->wiphy, dev, key.idx); | |
1467 | ||
3d23e349 | 1468 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1469 | if (!err) { |
79c97e97 | 1470 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1471 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1472 | else |
b9454e83 | 1473 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1474 | } |
1475 | #endif | |
fffd0934 | 1476 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1477 | |
1478 | out: | |
79c97e97 | 1479 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1480 | dev_put(dev); |
3b85875a JB |
1481 | |
1482 | unlock_rtnl: | |
1483 | rtnl_unlock(); | |
1484 | ||
41ade00f JB |
1485 | return err; |
1486 | } | |
1487 | ||
1488 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1489 | { | |
79c97e97 | 1490 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1491 | int err; |
41ade00f | 1492 | struct net_device *dev; |
b9454e83 | 1493 | struct key_parse key; |
41ade00f JB |
1494 | u8 *mac_addr = NULL; |
1495 | ||
b9454e83 JB |
1496 | err = nl80211_parse_key(info, &key); |
1497 | if (err) | |
1498 | return err; | |
41ade00f | 1499 | |
b9454e83 | 1500 | if (!key.p.key) |
41ade00f JB |
1501 | return -EINVAL; |
1502 | ||
41ade00f JB |
1503 | if (info->attrs[NL80211_ATTR_MAC]) |
1504 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1505 | ||
3b85875a JB |
1506 | rtnl_lock(); |
1507 | ||
463d0183 | 1508 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1509 | if (err) |
3b85875a | 1510 | goto unlock_rtnl; |
41ade00f | 1511 | |
fffd0934 JB |
1512 | if (!rdev->ops->add_key) { |
1513 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1514 | goto out; |
1515 | } | |
1516 | ||
fffd0934 JB |
1517 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1518 | err = -EINVAL; | |
41ade00f JB |
1519 | goto out; |
1520 | } | |
1521 | ||
fffd0934 JB |
1522 | wdev_lock(dev->ieee80211_ptr); |
1523 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1524 | if (!err) | |
1525 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1526 | mac_addr, &key.p); | |
1527 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1528 | |
1529 | out: | |
79c97e97 | 1530 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1531 | dev_put(dev); |
3b85875a JB |
1532 | unlock_rtnl: |
1533 | rtnl_unlock(); | |
1534 | ||
41ade00f JB |
1535 | return err; |
1536 | } | |
1537 | ||
1538 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1539 | { | |
79c97e97 | 1540 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1541 | int err; |
1542 | struct net_device *dev; | |
41ade00f | 1543 | u8 *mac_addr = NULL; |
b9454e83 | 1544 | struct key_parse key; |
41ade00f | 1545 | |
b9454e83 JB |
1546 | err = nl80211_parse_key(info, &key); |
1547 | if (err) | |
1548 | return err; | |
41ade00f JB |
1549 | |
1550 | if (info->attrs[NL80211_ATTR_MAC]) | |
1551 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1552 | ||
3b85875a JB |
1553 | rtnl_lock(); |
1554 | ||
463d0183 | 1555 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1556 | if (err) |
3b85875a | 1557 | goto unlock_rtnl; |
41ade00f | 1558 | |
79c97e97 | 1559 | if (!rdev->ops->del_key) { |
41ade00f JB |
1560 | err = -EOPNOTSUPP; |
1561 | goto out; | |
1562 | } | |
1563 | ||
fffd0934 JB |
1564 | wdev_lock(dev->ieee80211_ptr); |
1565 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1566 | if (!err) | |
1567 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1568 | |
3d23e349 | 1569 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1570 | if (!err) { |
b9454e83 | 1571 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1572 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1573 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1574 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1575 | } | |
1576 | #endif | |
fffd0934 | 1577 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1578 | |
41ade00f | 1579 | out: |
79c97e97 | 1580 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1581 | dev_put(dev); |
3b85875a JB |
1582 | |
1583 | unlock_rtnl: | |
1584 | rtnl_unlock(); | |
1585 | ||
41ade00f JB |
1586 | return err; |
1587 | } | |
1588 | ||
ed1b6cc7 JB |
1589 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1590 | { | |
1591 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1592 | struct beacon_parameters *info); | |
79c97e97 | 1593 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1594 | int err; |
1595 | struct net_device *dev; | |
1596 | struct beacon_parameters params; | |
1597 | int haveinfo = 0; | |
1598 | ||
f4a11bb0 JB |
1599 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1600 | return -EINVAL; | |
1601 | ||
3b85875a JB |
1602 | rtnl_lock(); |
1603 | ||
463d0183 | 1604 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1605 | if (err) |
3b85875a | 1606 | goto unlock_rtnl; |
ed1b6cc7 | 1607 | |
eec60b03 JM |
1608 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1609 | err = -EOPNOTSUPP; | |
1610 | goto out; | |
1611 | } | |
1612 | ||
ed1b6cc7 JB |
1613 | switch (info->genlhdr->cmd) { |
1614 | case NL80211_CMD_NEW_BEACON: | |
1615 | /* these are required for NEW_BEACON */ | |
1616 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1617 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1618 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1619 | err = -EINVAL; | |
1620 | goto out; | |
1621 | } | |
1622 | ||
79c97e97 | 1623 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1624 | break; |
1625 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1626 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1627 | break; |
1628 | default: | |
1629 | WARN_ON(1); | |
1630 | err = -EOPNOTSUPP; | |
1631 | goto out; | |
1632 | } | |
1633 | ||
1634 | if (!call) { | |
1635 | err = -EOPNOTSUPP; | |
1636 | goto out; | |
1637 | } | |
1638 | ||
1639 | memset(¶ms, 0, sizeof(params)); | |
1640 | ||
1641 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1642 | params.interval = | |
1643 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1644 | haveinfo = 1; | |
1645 | } | |
1646 | ||
1647 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1648 | params.dtim_period = | |
1649 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1650 | haveinfo = 1; | |
1651 | } | |
1652 | ||
1653 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1654 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1655 | params.head_len = | |
1656 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1657 | haveinfo = 1; | |
1658 | } | |
1659 | ||
1660 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1661 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1662 | params.tail_len = | |
1663 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1664 | haveinfo = 1; | |
1665 | } | |
1666 | ||
1667 | if (!haveinfo) { | |
1668 | err = -EINVAL; | |
1669 | goto out; | |
1670 | } | |
1671 | ||
79c97e97 | 1672 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1673 | |
1674 | out: | |
79c97e97 | 1675 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1676 | dev_put(dev); |
3b85875a JB |
1677 | unlock_rtnl: |
1678 | rtnl_unlock(); | |
1679 | ||
ed1b6cc7 JB |
1680 | return err; |
1681 | } | |
1682 | ||
1683 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1684 | { | |
79c97e97 | 1685 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1686 | int err; |
1687 | struct net_device *dev; | |
1688 | ||
3b85875a JB |
1689 | rtnl_lock(); |
1690 | ||
463d0183 | 1691 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1692 | if (err) |
3b85875a | 1693 | goto unlock_rtnl; |
ed1b6cc7 | 1694 | |
79c97e97 | 1695 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1696 | err = -EOPNOTSUPP; |
1697 | goto out; | |
1698 | } | |
1699 | ||
eec60b03 JM |
1700 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1701 | err = -EOPNOTSUPP; | |
1702 | goto out; | |
1703 | } | |
79c97e97 | 1704 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1705 | |
1706 | out: | |
79c97e97 | 1707 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1708 | dev_put(dev); |
3b85875a JB |
1709 | unlock_rtnl: |
1710 | rtnl_unlock(); | |
1711 | ||
ed1b6cc7 JB |
1712 | return err; |
1713 | } | |
1714 | ||
5727ef1b JB |
1715 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1716 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1717 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1718 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1719 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1720 | }; |
1721 | ||
eccb8e8f JB |
1722 | static int parse_station_flags(struct genl_info *info, |
1723 | struct station_parameters *params) | |
5727ef1b JB |
1724 | { |
1725 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1726 | struct nlattr *nla; |
5727ef1b JB |
1727 | int flag; |
1728 | ||
eccb8e8f JB |
1729 | /* |
1730 | * Try parsing the new attribute first so userspace | |
1731 | * can specify both for older kernels. | |
1732 | */ | |
1733 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1734 | if (nla) { | |
1735 | struct nl80211_sta_flag_update *sta_flags; | |
1736 | ||
1737 | sta_flags = nla_data(nla); | |
1738 | params->sta_flags_mask = sta_flags->mask; | |
1739 | params->sta_flags_set = sta_flags->set; | |
1740 | if ((params->sta_flags_mask | | |
1741 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1742 | return -EINVAL; | |
1743 | return 0; | |
1744 | } | |
1745 | ||
1746 | /* if present, parse the old attribute */ | |
5727ef1b | 1747 | |
eccb8e8f | 1748 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1749 | if (!nla) |
1750 | return 0; | |
1751 | ||
1752 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1753 | nla, sta_flags_policy)) | |
1754 | return -EINVAL; | |
1755 | ||
eccb8e8f JB |
1756 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1757 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1758 | |
1759 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1760 | if (flags[flag]) | |
eccb8e8f | 1761 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1762 | |
1763 | return 0; | |
1764 | } | |
1765 | ||
fd5b74dc JB |
1766 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1767 | int flags, struct net_device *dev, | |
98b62183 | 1768 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1769 | { |
1770 | void *hdr; | |
420e7fab HR |
1771 | struct nlattr *sinfoattr, *txrate; |
1772 | u16 bitrate; | |
fd5b74dc JB |
1773 | |
1774 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1775 | if (!hdr) | |
1776 | return -1; | |
1777 | ||
1778 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1779 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1780 | ||
f5ea9120 JB |
1781 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1782 | ||
2ec600d6 LCC |
1783 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1784 | if (!sinfoattr) | |
fd5b74dc | 1785 | goto nla_put_failure; |
2ec600d6 LCC |
1786 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1787 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1788 | sinfo->inactive_time); | |
1789 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1790 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1791 | sinfo->rx_bytes); | |
1792 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1793 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1794 | sinfo->tx_bytes); | |
1795 | if (sinfo->filled & STATION_INFO_LLID) | |
1796 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1797 | sinfo->llid); | |
1798 | if (sinfo->filled & STATION_INFO_PLID) | |
1799 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1800 | sinfo->plid); | |
1801 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1802 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1803 | sinfo->plink_state); | |
420e7fab HR |
1804 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1805 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1806 | sinfo->signal); | |
1807 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1808 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1809 | if (!txrate) | |
1810 | goto nla_put_failure; | |
1811 | ||
254416aa JL |
1812 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1813 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1814 | if (bitrate > 0) |
1815 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1816 | |
420e7fab HR |
1817 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1818 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1819 | sinfo->txrate.mcs); | |
1820 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1821 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1822 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1823 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1824 | ||
1825 | nla_nest_end(msg, txrate); | |
1826 | } | |
98c8a60a JM |
1827 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1828 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1829 | sinfo->rx_packets); | |
1830 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1831 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1832 | sinfo->tx_packets); | |
2ec600d6 | 1833 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1834 | |
1835 | return genlmsg_end(msg, hdr); | |
1836 | ||
1837 | nla_put_failure: | |
bc3ed28c TG |
1838 | genlmsg_cancel(msg, hdr); |
1839 | return -EMSGSIZE; | |
fd5b74dc JB |
1840 | } |
1841 | ||
2ec600d6 | 1842 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1843 | struct netlink_callback *cb) |
2ec600d6 | 1844 | { |
2ec600d6 LCC |
1845 | struct station_info sinfo; |
1846 | struct cfg80211_registered_device *dev; | |
bba95fef | 1847 | struct net_device *netdev; |
2ec600d6 | 1848 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1849 | int ifidx = cb->args[0]; |
1850 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1851 | int err; |
2ec600d6 | 1852 | |
a043897a HS |
1853 | if (!ifidx) |
1854 | ifidx = nl80211_get_ifidx(cb); | |
1855 | if (ifidx < 0) | |
1856 | return ifidx; | |
2ec600d6 | 1857 | |
3b85875a JB |
1858 | rtnl_lock(); |
1859 | ||
463d0183 | 1860 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1861 | if (!netdev) { |
1862 | err = -ENODEV; | |
1863 | goto out_rtnl; | |
1864 | } | |
2ec600d6 | 1865 | |
463d0183 | 1866 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1867 | if (IS_ERR(dev)) { |
1868 | err = PTR_ERR(dev); | |
3b85875a | 1869 | goto out_rtnl; |
bba95fef JB |
1870 | } |
1871 | ||
1872 | if (!dev->ops->dump_station) { | |
eec60b03 | 1873 | err = -EOPNOTSUPP; |
bba95fef JB |
1874 | goto out_err; |
1875 | } | |
1876 | ||
bba95fef JB |
1877 | while (1) { |
1878 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1879 | mac_addr, &sinfo); | |
1880 | if (err == -ENOENT) | |
1881 | break; | |
1882 | if (err) | |
3b85875a | 1883 | goto out_err; |
bba95fef JB |
1884 | |
1885 | if (nl80211_send_station(skb, | |
1886 | NETLINK_CB(cb->skb).pid, | |
1887 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1888 | netdev, mac_addr, | |
1889 | &sinfo) < 0) | |
1890 | goto out; | |
1891 | ||
1892 | sta_idx++; | |
1893 | } | |
1894 | ||
1895 | ||
1896 | out: | |
1897 | cb->args[1] = sta_idx; | |
1898 | err = skb->len; | |
bba95fef | 1899 | out_err: |
4d0c8aea | 1900 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1901 | out_rtnl: |
1902 | rtnl_unlock(); | |
bba95fef JB |
1903 | |
1904 | return err; | |
2ec600d6 | 1905 | } |
fd5b74dc | 1906 | |
5727ef1b JB |
1907 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1908 | { | |
79c97e97 | 1909 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1910 | int err; |
1911 | struct net_device *dev; | |
2ec600d6 | 1912 | struct station_info sinfo; |
fd5b74dc JB |
1913 | struct sk_buff *msg; |
1914 | u8 *mac_addr = NULL; | |
1915 | ||
2ec600d6 | 1916 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1917 | |
1918 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1919 | return -EINVAL; | |
1920 | ||
1921 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1922 | ||
3b85875a JB |
1923 | rtnl_lock(); |
1924 | ||
463d0183 | 1925 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
fd5b74dc | 1926 | if (err) |
3b85875a | 1927 | goto out_rtnl; |
fd5b74dc | 1928 | |
79c97e97 | 1929 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
1930 | err = -EOPNOTSUPP; |
1931 | goto out; | |
1932 | } | |
1933 | ||
79c97e97 | 1934 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
1935 | if (err) |
1936 | goto out; | |
1937 | ||
fd2120ca | 1938 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
1939 | if (!msg) |
1940 | goto out; | |
1941 | ||
1942 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 1943 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
1944 | goto out_free; |
1945 | ||
134e6375 | 1946 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
1947 | goto out; |
1948 | ||
1949 | out_free: | |
1950 | nlmsg_free(msg); | |
fd5b74dc | 1951 | out: |
79c97e97 | 1952 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 1953 | dev_put(dev); |
3b85875a JB |
1954 | out_rtnl: |
1955 | rtnl_unlock(); | |
1956 | ||
fd5b74dc | 1957 | return err; |
5727ef1b JB |
1958 | } |
1959 | ||
1960 | /* | |
c258d2de | 1961 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 1962 | */ |
463d0183 | 1963 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
1964 | struct cfg80211_registered_device *rdev, |
1965 | struct net_device **vlan) | |
1966 | { | |
463d0183 | 1967 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
1968 | *vlan = NULL; |
1969 | ||
1970 | if (vlanattr) { | |
463d0183 JB |
1971 | *vlan = dev_get_by_index(genl_info_net(info), |
1972 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
1973 | if (!*vlan) |
1974 | return -ENODEV; | |
1975 | if (!(*vlan)->ieee80211_ptr) | |
1976 | return -EINVAL; | |
1977 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1978 | return -EINVAL; | |
c258d2de FF |
1979 | if (!netif_running(*vlan)) |
1980 | return -ENETDOWN; | |
5727ef1b JB |
1981 | } |
1982 | return 0; | |
1983 | } | |
1984 | ||
1985 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1986 | { | |
79c97e97 | 1987 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
1988 | int err; |
1989 | struct net_device *dev; | |
1990 | struct station_parameters params; | |
1991 | u8 *mac_addr = NULL; | |
1992 | ||
1993 | memset(¶ms, 0, sizeof(params)); | |
1994 | ||
1995 | params.listen_interval = -1; | |
1996 | ||
1997 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1998 | return -EINVAL; | |
1999 | ||
2000 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2001 | return -EINVAL; | |
2002 | ||
2003 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2004 | ||
2005 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2006 | params.supported_rates = | |
2007 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2008 | params.supported_rates_len = | |
2009 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2010 | } | |
2011 | ||
2012 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2013 | params.listen_interval = | |
2014 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2015 | ||
36aedc90 JM |
2016 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2017 | params.ht_capa = | |
2018 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2019 | ||
eccb8e8f | 2020 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2021 | return -EINVAL; |
2022 | ||
2ec600d6 LCC |
2023 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2024 | params.plink_action = | |
2025 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2026 | ||
3b85875a JB |
2027 | rtnl_lock(); |
2028 | ||
463d0183 | 2029 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2030 | if (err) |
3b85875a | 2031 | goto out_rtnl; |
5727ef1b | 2032 | |
463d0183 | 2033 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2034 | if (err) |
034d655e | 2035 | goto out; |
a97f4424 JB |
2036 | |
2037 | /* validate settings */ | |
2038 | err = 0; | |
2039 | ||
2040 | switch (dev->ieee80211_ptr->iftype) { | |
2041 | case NL80211_IFTYPE_AP: | |
2042 | case NL80211_IFTYPE_AP_VLAN: | |
2043 | /* disallow mesh-specific things */ | |
2044 | if (params.plink_action) | |
2045 | err = -EINVAL; | |
2046 | break; | |
2047 | case NL80211_IFTYPE_STATION: | |
2048 | /* disallow everything but AUTHORIZED flag */ | |
2049 | if (params.plink_action) | |
2050 | err = -EINVAL; | |
2051 | if (params.vlan) | |
2052 | err = -EINVAL; | |
2053 | if (params.supported_rates) | |
2054 | err = -EINVAL; | |
2055 | if (params.ht_capa) | |
2056 | err = -EINVAL; | |
2057 | if (params.listen_interval >= 0) | |
2058 | err = -EINVAL; | |
2059 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2060 | err = -EINVAL; | |
2061 | break; | |
2062 | case NL80211_IFTYPE_MESH_POINT: | |
2063 | /* disallow things mesh doesn't support */ | |
2064 | if (params.vlan) | |
2065 | err = -EINVAL; | |
2066 | if (params.ht_capa) | |
2067 | err = -EINVAL; | |
2068 | if (params.listen_interval >= 0) | |
2069 | err = -EINVAL; | |
2070 | if (params.supported_rates) | |
2071 | err = -EINVAL; | |
2072 | if (params.sta_flags_mask) | |
2073 | err = -EINVAL; | |
2074 | break; | |
2075 | default: | |
2076 | err = -EINVAL; | |
034d655e JB |
2077 | } |
2078 | ||
5727ef1b JB |
2079 | if (err) |
2080 | goto out; | |
2081 | ||
79c97e97 | 2082 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2083 | err = -EOPNOTSUPP; |
2084 | goto out; | |
2085 | } | |
2086 | ||
79c97e97 | 2087 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2088 | |
2089 | out: | |
2090 | if (params.vlan) | |
2091 | dev_put(params.vlan); | |
79c97e97 | 2092 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2093 | dev_put(dev); |
3b85875a JB |
2094 | out_rtnl: |
2095 | rtnl_unlock(); | |
2096 | ||
5727ef1b JB |
2097 | return err; |
2098 | } | |
2099 | ||
2100 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2101 | { | |
79c97e97 | 2102 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2103 | int err; |
2104 | struct net_device *dev; | |
2105 | struct station_parameters params; | |
2106 | u8 *mac_addr = NULL; | |
2107 | ||
2108 | memset(¶ms, 0, sizeof(params)); | |
2109 | ||
2110 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2111 | return -EINVAL; | |
2112 | ||
5727ef1b JB |
2113 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2114 | return -EINVAL; | |
2115 | ||
2116 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2117 | return -EINVAL; | |
2118 | ||
0e956c13 TLSC |
2119 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2120 | return -EINVAL; | |
2121 | ||
5727ef1b JB |
2122 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2123 | params.supported_rates = | |
2124 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2125 | params.supported_rates_len = | |
2126 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2127 | params.listen_interval = | |
2128 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2129 | |
0e956c13 TLSC |
2130 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2131 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2132 | return -EINVAL; | |
51b50fbe | 2133 | |
36aedc90 JM |
2134 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2135 | params.ht_capa = | |
2136 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2137 | |
eccb8e8f | 2138 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2139 | return -EINVAL; |
2140 | ||
3b85875a JB |
2141 | rtnl_lock(); |
2142 | ||
463d0183 | 2143 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2144 | if (err) |
3b85875a | 2145 | goto out_rtnl; |
5727ef1b | 2146 | |
0e956c13 TLSC |
2147 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
2148 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { | |
2149 | err = -EINVAL; | |
2150 | goto out; | |
2151 | } | |
2152 | ||
463d0183 | 2153 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2154 | if (err) |
e80cf853 | 2155 | goto out; |
a97f4424 JB |
2156 | |
2157 | /* validate settings */ | |
2158 | err = 0; | |
2159 | ||
79c97e97 | 2160 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2161 | err = -EOPNOTSUPP; |
2162 | goto out; | |
2163 | } | |
2164 | ||
35a8efe1 JM |
2165 | if (!netif_running(dev)) { |
2166 | err = -ENETDOWN; | |
2167 | goto out; | |
2168 | } | |
2169 | ||
79c97e97 | 2170 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2171 | |
2172 | out: | |
2173 | if (params.vlan) | |
2174 | dev_put(params.vlan); | |
79c97e97 | 2175 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2176 | dev_put(dev); |
3b85875a JB |
2177 | out_rtnl: |
2178 | rtnl_unlock(); | |
2179 | ||
5727ef1b JB |
2180 | return err; |
2181 | } | |
2182 | ||
2183 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2184 | { | |
79c97e97 | 2185 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2186 | int err; |
2187 | struct net_device *dev; | |
2188 | u8 *mac_addr = NULL; | |
2189 | ||
2190 | if (info->attrs[NL80211_ATTR_MAC]) | |
2191 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2192 | ||
3b85875a JB |
2193 | rtnl_lock(); |
2194 | ||
463d0183 | 2195 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2196 | if (err) |
3b85875a | 2197 | goto out_rtnl; |
5727ef1b | 2198 | |
e80cf853 | 2199 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 MP |
2200 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
2201 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
2202 | err = -EINVAL; |
2203 | goto out; | |
2204 | } | |
2205 | ||
79c97e97 | 2206 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2207 | err = -EOPNOTSUPP; |
2208 | goto out; | |
2209 | } | |
2210 | ||
79c97e97 | 2211 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2212 | |
2213 | out: | |
79c97e97 | 2214 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2215 | dev_put(dev); |
3b85875a JB |
2216 | out_rtnl: |
2217 | rtnl_unlock(); | |
2218 | ||
5727ef1b JB |
2219 | return err; |
2220 | } | |
2221 | ||
2ec600d6 LCC |
2222 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2223 | int flags, struct net_device *dev, | |
2224 | u8 *dst, u8 *next_hop, | |
2225 | struct mpath_info *pinfo) | |
2226 | { | |
2227 | void *hdr; | |
2228 | struct nlattr *pinfoattr; | |
2229 | ||
2230 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2231 | if (!hdr) | |
2232 | return -1; | |
2233 | ||
2234 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2235 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2236 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2237 | ||
f5ea9120 JB |
2238 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2239 | ||
2ec600d6 LCC |
2240 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2241 | if (!pinfoattr) | |
2242 | goto nla_put_failure; | |
2243 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2244 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2245 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2246 | if (pinfo->filled & MPATH_INFO_SN) |
2247 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2248 | pinfo->sn); | |
2ec600d6 LCC |
2249 | if (pinfo->filled & MPATH_INFO_METRIC) |
2250 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2251 | pinfo->metric); | |
2252 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2253 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2254 | pinfo->exptime); | |
2255 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2256 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2257 | pinfo->flags); | |
2258 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2259 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2260 | pinfo->discovery_timeout); | |
2261 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2262 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2263 | pinfo->discovery_retries); | |
2264 | ||
2265 | nla_nest_end(msg, pinfoattr); | |
2266 | ||
2267 | return genlmsg_end(msg, hdr); | |
2268 | ||
2269 | nla_put_failure: | |
bc3ed28c TG |
2270 | genlmsg_cancel(msg, hdr); |
2271 | return -EMSGSIZE; | |
2ec600d6 LCC |
2272 | } |
2273 | ||
2274 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2275 | struct netlink_callback *cb) |
2ec600d6 | 2276 | { |
2ec600d6 LCC |
2277 | struct mpath_info pinfo; |
2278 | struct cfg80211_registered_device *dev; | |
bba95fef | 2279 | struct net_device *netdev; |
2ec600d6 LCC |
2280 | u8 dst[ETH_ALEN]; |
2281 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2282 | int ifidx = cb->args[0]; |
2283 | int path_idx = cb->args[1]; | |
2ec600d6 | 2284 | int err; |
2ec600d6 | 2285 | |
a043897a HS |
2286 | if (!ifidx) |
2287 | ifidx = nl80211_get_ifidx(cb); | |
2288 | if (ifidx < 0) | |
2289 | return ifidx; | |
bba95fef | 2290 | |
3b85875a JB |
2291 | rtnl_lock(); |
2292 | ||
463d0183 | 2293 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2294 | if (!netdev) { |
2295 | err = -ENODEV; | |
2296 | goto out_rtnl; | |
2297 | } | |
bba95fef | 2298 | |
463d0183 | 2299 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2300 | if (IS_ERR(dev)) { |
2301 | err = PTR_ERR(dev); | |
3b85875a | 2302 | goto out_rtnl; |
bba95fef JB |
2303 | } |
2304 | ||
2305 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2306 | err = -EOPNOTSUPP; |
bba95fef JB |
2307 | goto out_err; |
2308 | } | |
2309 | ||
eec60b03 JM |
2310 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2311 | err = -EOPNOTSUPP; | |
0448b5fc | 2312 | goto out_err; |
eec60b03 JM |
2313 | } |
2314 | ||
bba95fef JB |
2315 | while (1) { |
2316 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2317 | dst, next_hop, &pinfo); | |
2318 | if (err == -ENOENT) | |
2ec600d6 | 2319 | break; |
bba95fef | 2320 | if (err) |
3b85875a | 2321 | goto out_err; |
2ec600d6 | 2322 | |
bba95fef JB |
2323 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2324 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2325 | netdev, dst, next_hop, | |
2326 | &pinfo) < 0) | |
2327 | goto out; | |
2ec600d6 | 2328 | |
bba95fef | 2329 | path_idx++; |
2ec600d6 | 2330 | } |
2ec600d6 | 2331 | |
2ec600d6 | 2332 | |
bba95fef JB |
2333 | out: |
2334 | cb->args[1] = path_idx; | |
2335 | err = skb->len; | |
bba95fef | 2336 | out_err: |
4d0c8aea | 2337 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2338 | out_rtnl: |
2339 | rtnl_unlock(); | |
bba95fef JB |
2340 | |
2341 | return err; | |
2ec600d6 LCC |
2342 | } |
2343 | ||
2344 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2345 | { | |
79c97e97 | 2346 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2347 | int err; |
2348 | struct net_device *dev; | |
2349 | struct mpath_info pinfo; | |
2350 | struct sk_buff *msg; | |
2351 | u8 *dst = NULL; | |
2352 | u8 next_hop[ETH_ALEN]; | |
2353 | ||
2354 | memset(&pinfo, 0, sizeof(pinfo)); | |
2355 | ||
2356 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2357 | return -EINVAL; | |
2358 | ||
2359 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2360 | ||
3b85875a JB |
2361 | rtnl_lock(); |
2362 | ||
463d0183 | 2363 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2364 | if (err) |
3b85875a | 2365 | goto out_rtnl; |
2ec600d6 | 2366 | |
79c97e97 | 2367 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2368 | err = -EOPNOTSUPP; |
2369 | goto out; | |
2370 | } | |
2371 | ||
eec60b03 JM |
2372 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2373 | err = -EOPNOTSUPP; | |
2374 | goto out; | |
2375 | } | |
2376 | ||
79c97e97 | 2377 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2378 | if (err) |
2379 | goto out; | |
2380 | ||
fd2120ca | 2381 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2382 | if (!msg) |
2383 | goto out; | |
2384 | ||
2385 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2386 | dev, dst, next_hop, &pinfo) < 0) | |
2387 | goto out_free; | |
2388 | ||
134e6375 | 2389 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2390 | goto out; |
2391 | ||
2392 | out_free: | |
2393 | nlmsg_free(msg); | |
2ec600d6 | 2394 | out: |
79c97e97 | 2395 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2396 | dev_put(dev); |
3b85875a JB |
2397 | out_rtnl: |
2398 | rtnl_unlock(); | |
2399 | ||
2ec600d6 LCC |
2400 | return err; |
2401 | } | |
2402 | ||
2403 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2404 | { | |
79c97e97 | 2405 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2406 | int err; |
2407 | struct net_device *dev; | |
2408 | u8 *dst = NULL; | |
2409 | u8 *next_hop = NULL; | |
2410 | ||
2411 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2412 | return -EINVAL; | |
2413 | ||
2414 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2415 | return -EINVAL; | |
2416 | ||
2417 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2418 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2419 | ||
3b85875a JB |
2420 | rtnl_lock(); |
2421 | ||
463d0183 | 2422 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2423 | if (err) |
3b85875a | 2424 | goto out_rtnl; |
2ec600d6 | 2425 | |
79c97e97 | 2426 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2427 | err = -EOPNOTSUPP; |
2428 | goto out; | |
2429 | } | |
2430 | ||
eec60b03 JM |
2431 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2432 | err = -EOPNOTSUPP; | |
2433 | goto out; | |
2434 | } | |
2435 | ||
35a8efe1 JM |
2436 | if (!netif_running(dev)) { |
2437 | err = -ENETDOWN; | |
2438 | goto out; | |
2439 | } | |
2440 | ||
79c97e97 | 2441 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2442 | |
2443 | out: | |
79c97e97 | 2444 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2445 | dev_put(dev); |
3b85875a JB |
2446 | out_rtnl: |
2447 | rtnl_unlock(); | |
2448 | ||
2ec600d6 LCC |
2449 | return err; |
2450 | } | |
2451 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2452 | { | |
79c97e97 | 2453 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2454 | int err; |
2455 | struct net_device *dev; | |
2456 | u8 *dst = NULL; | |
2457 | u8 *next_hop = NULL; | |
2458 | ||
2459 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2460 | return -EINVAL; | |
2461 | ||
2462 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2463 | return -EINVAL; | |
2464 | ||
2465 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2466 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2467 | ||
3b85875a JB |
2468 | rtnl_lock(); |
2469 | ||
463d0183 | 2470 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2471 | if (err) |
3b85875a | 2472 | goto out_rtnl; |
2ec600d6 | 2473 | |
79c97e97 | 2474 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2475 | err = -EOPNOTSUPP; |
2476 | goto out; | |
2477 | } | |
2478 | ||
eec60b03 JM |
2479 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2480 | err = -EOPNOTSUPP; | |
2481 | goto out; | |
2482 | } | |
2483 | ||
35a8efe1 JM |
2484 | if (!netif_running(dev)) { |
2485 | err = -ENETDOWN; | |
2486 | goto out; | |
2487 | } | |
2488 | ||
79c97e97 | 2489 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2490 | |
2491 | out: | |
79c97e97 | 2492 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2493 | dev_put(dev); |
3b85875a JB |
2494 | out_rtnl: |
2495 | rtnl_unlock(); | |
2496 | ||
2ec600d6 LCC |
2497 | return err; |
2498 | } | |
2499 | ||
2500 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2501 | { | |
79c97e97 | 2502 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2503 | int err; |
2504 | struct net_device *dev; | |
2505 | u8 *dst = NULL; | |
2506 | ||
2507 | if (info->attrs[NL80211_ATTR_MAC]) | |
2508 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2509 | ||
3b85875a JB |
2510 | rtnl_lock(); |
2511 | ||
463d0183 | 2512 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2513 | if (err) |
3b85875a | 2514 | goto out_rtnl; |
2ec600d6 | 2515 | |
79c97e97 | 2516 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2517 | err = -EOPNOTSUPP; |
2518 | goto out; | |
2519 | } | |
2520 | ||
79c97e97 | 2521 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2522 | |
2523 | out: | |
79c97e97 | 2524 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2525 | dev_put(dev); |
3b85875a JB |
2526 | out_rtnl: |
2527 | rtnl_unlock(); | |
2528 | ||
2ec600d6 LCC |
2529 | return err; |
2530 | } | |
2531 | ||
9f1ba906 JM |
2532 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2533 | { | |
79c97e97 | 2534 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2535 | int err; |
2536 | struct net_device *dev; | |
2537 | struct bss_parameters params; | |
2538 | ||
2539 | memset(¶ms, 0, sizeof(params)); | |
2540 | /* default to not changing parameters */ | |
2541 | params.use_cts_prot = -1; | |
2542 | params.use_short_preamble = -1; | |
2543 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2544 | params.ap_isolate = -1; |
9f1ba906 JM |
2545 | |
2546 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2547 | params.use_cts_prot = | |
2548 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2549 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2550 | params.use_short_preamble = | |
2551 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2552 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2553 | params.use_short_slot_time = | |
2554 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2555 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2556 | params.basic_rates = | |
2557 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2558 | params.basic_rates_len = | |
2559 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2560 | } | |
fd8aaaf3 FF |
2561 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2562 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2563 | |
3b85875a JB |
2564 | rtnl_lock(); |
2565 | ||
463d0183 | 2566 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
9f1ba906 | 2567 | if (err) |
3b85875a | 2568 | goto out_rtnl; |
9f1ba906 | 2569 | |
79c97e97 | 2570 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2571 | err = -EOPNOTSUPP; |
2572 | goto out; | |
2573 | } | |
2574 | ||
eec60b03 JM |
2575 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2576 | err = -EOPNOTSUPP; | |
2577 | goto out; | |
2578 | } | |
2579 | ||
79c97e97 | 2580 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2581 | |
2582 | out: | |
79c97e97 | 2583 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2584 | dev_put(dev); |
3b85875a JB |
2585 | out_rtnl: |
2586 | rtnl_unlock(); | |
2587 | ||
9f1ba906 JM |
2588 | return err; |
2589 | } | |
2590 | ||
b54452b0 | 2591 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2592 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2593 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2594 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2595 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2596 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2597 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2598 | }; | |
2599 | ||
2600 | static int parse_reg_rule(struct nlattr *tb[], | |
2601 | struct ieee80211_reg_rule *reg_rule) | |
2602 | { | |
2603 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2604 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2605 | ||
2606 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2607 | return -EINVAL; | |
2608 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2609 | return -EINVAL; | |
2610 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2611 | return -EINVAL; | |
2612 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2613 | return -EINVAL; | |
2614 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2615 | return -EINVAL; | |
2616 | ||
2617 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2618 | ||
2619 | freq_range->start_freq_khz = | |
2620 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2621 | freq_range->end_freq_khz = | |
2622 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2623 | freq_range->max_bandwidth_khz = | |
2624 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2625 | ||
2626 | power_rule->max_eirp = | |
2627 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2628 | ||
2629 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2630 | power_rule->max_antenna_gain = | |
2631 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2632 | ||
2633 | return 0; | |
2634 | } | |
2635 | ||
2636 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2637 | { | |
2638 | int r; | |
2639 | char *data = NULL; | |
2640 | ||
80778f18 LR |
2641 | /* |
2642 | * You should only get this when cfg80211 hasn't yet initialized | |
2643 | * completely when built-in to the kernel right between the time | |
2644 | * window between nl80211_init() and regulatory_init(), if that is | |
2645 | * even possible. | |
2646 | */ | |
2647 | mutex_lock(&cfg80211_mutex); | |
2648 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2649 | mutex_unlock(&cfg80211_mutex); |
2650 | return -EINPROGRESS; | |
80778f18 | 2651 | } |
fe33eb39 | 2652 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2653 | |
fe33eb39 LR |
2654 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2655 | return -EINVAL; | |
b2e1b302 LR |
2656 | |
2657 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2658 | ||
fe33eb39 LR |
2659 | r = regulatory_hint_user(data); |
2660 | ||
b2e1b302 LR |
2661 | return r; |
2662 | } | |
2663 | ||
93da9cc1 | 2664 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2665 | struct genl_info *info) | |
2666 | { | |
79c97e97 | 2667 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2668 | struct mesh_config cur_params; |
2669 | int err; | |
2670 | struct net_device *dev; | |
2671 | void *hdr; | |
2672 | struct nlattr *pinfoattr; | |
2673 | struct sk_buff *msg; | |
2674 | ||
3b85875a JB |
2675 | rtnl_lock(); |
2676 | ||
93da9cc1 | 2677 | /* Look up our device */ |
463d0183 | 2678 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2679 | if (err) |
3b85875a | 2680 | goto out_rtnl; |
93da9cc1 | 2681 | |
79c97e97 | 2682 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2683 | err = -EOPNOTSUPP; |
2684 | goto out; | |
2685 | } | |
2686 | ||
93da9cc1 | 2687 | /* Get the mesh params */ |
79c97e97 | 2688 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2689 | if (err) |
2690 | goto out; | |
2691 | ||
2692 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2693 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2694 | if (!msg) { |
2695 | err = -ENOBUFS; | |
2696 | goto out; | |
2697 | } | |
2698 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2699 | NL80211_CMD_GET_MESH_PARAMS); | |
2700 | if (!hdr) | |
2701 | goto nla_put_failure; | |
2702 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2703 | if (!pinfoattr) | |
2704 | goto nla_put_failure; | |
2705 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2706 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2707 | cur_params.dot11MeshRetryTimeout); | |
2708 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2709 | cur_params.dot11MeshConfirmTimeout); | |
2710 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2711 | cur_params.dot11MeshHoldingTimeout); | |
2712 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2713 | cur_params.dot11MeshMaxPeerLinks); | |
2714 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2715 | cur_params.dot11MeshMaxRetries); | |
2716 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2717 | cur_params.dot11MeshTTL); | |
2718 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2719 | cur_params.auto_open_plinks); | |
2720 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2721 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2722 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2723 | cur_params.path_refresh_time); | |
2724 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2725 | cur_params.min_discovery_timeout); | |
2726 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2727 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2728 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2729 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2730 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2731 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2732 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2733 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2734 | nla_nest_end(msg, pinfoattr); |
2735 | genlmsg_end(msg, hdr); | |
134e6375 | 2736 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2737 | goto out; |
2738 | ||
3b85875a | 2739 | nla_put_failure: |
93da9cc1 | 2740 | genlmsg_cancel(msg, hdr); |
2741 | err = -EMSGSIZE; | |
3b85875a | 2742 | out: |
93da9cc1 | 2743 | /* Cleanup */ |
79c97e97 | 2744 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2745 | dev_put(dev); |
3b85875a JB |
2746 | out_rtnl: |
2747 | rtnl_unlock(); | |
2748 | ||
93da9cc1 | 2749 | return err; |
2750 | } | |
2751 | ||
2752 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2753 | do {\ | |
2754 | if (table[attr_num]) {\ | |
2755 | cfg.param = nla_fn(table[attr_num]); \ | |
2756 | mask |= (1 << (attr_num - 1)); \ | |
2757 | } \ | |
2758 | } while (0);\ | |
2759 | ||
b54452b0 | 2760 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2761 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2762 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2763 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2764 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2765 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2766 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2767 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2768 | ||
2769 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2770 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2771 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2772 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2773 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2774 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2775 | }; | |
2776 | ||
2777 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2778 | { | |
2779 | int err; | |
2780 | u32 mask; | |
79c97e97 | 2781 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2782 | struct net_device *dev; |
2783 | struct mesh_config cfg; | |
2784 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2785 | struct nlattr *parent_attr; | |
2786 | ||
2787 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2788 | if (!parent_attr) | |
2789 | return -EINVAL; | |
2790 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2791 | parent_attr, nl80211_meshconf_params_policy)) | |
2792 | return -EINVAL; | |
2793 | ||
3b85875a JB |
2794 | rtnl_lock(); |
2795 | ||
463d0183 | 2796 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2797 | if (err) |
3b85875a | 2798 | goto out_rtnl; |
93da9cc1 | 2799 | |
79c97e97 | 2800 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2801 | err = -EOPNOTSUPP; |
2802 | goto out; | |
2803 | } | |
2804 | ||
93da9cc1 | 2805 | /* This makes sure that there aren't more than 32 mesh config |
2806 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2807 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2808 | ||
2809 | /* Fill in the params struct */ | |
2810 | mask = 0; | |
2811 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2812 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2813 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2814 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2815 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2816 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2817 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2818 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2819 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2820 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2821 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2822 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2823 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2824 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2825 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2826 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2827 | nla_get_u8); | |
2828 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2829 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2830 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2831 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2832 | nla_get_u16); | |
2833 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2834 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2835 | nla_get_u32); | |
2836 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2837 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2838 | nla_get_u16); | |
2839 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2840 | dot11MeshHWMPnetDiameterTraversalTime, | |
2841 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2842 | nla_get_u16); | |
63c5723b RP |
2843 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2844 | dot11MeshHWMPRootMode, mask, | |
2845 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2846 | nla_get_u8); | |
93da9cc1 | 2847 | |
2848 | /* Apply changes */ | |
79c97e97 | 2849 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2850 | |
f3f92586 | 2851 | out: |
93da9cc1 | 2852 | /* cleanup */ |
79c97e97 | 2853 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2854 | dev_put(dev); |
3b85875a JB |
2855 | out_rtnl: |
2856 | rtnl_unlock(); | |
2857 | ||
93da9cc1 | 2858 | return err; |
2859 | } | |
2860 | ||
2861 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2862 | ||
f130347c LR |
2863 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2864 | { | |
2865 | struct sk_buff *msg; | |
2866 | void *hdr = NULL; | |
2867 | struct nlattr *nl_reg_rules; | |
2868 | unsigned int i; | |
2869 | int err = -EINVAL; | |
2870 | ||
a1794390 | 2871 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2872 | |
2873 | if (!cfg80211_regdomain) | |
2874 | goto out; | |
2875 | ||
fd2120ca | 2876 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2877 | if (!msg) { |
2878 | err = -ENOBUFS; | |
2879 | goto out; | |
2880 | } | |
2881 | ||
2882 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2883 | NL80211_CMD_GET_REG); | |
2884 | if (!hdr) | |
2885 | goto nla_put_failure; | |
2886 | ||
2887 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2888 | cfg80211_regdomain->alpha2); | |
2889 | ||
2890 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2891 | if (!nl_reg_rules) | |
2892 | goto nla_put_failure; | |
2893 | ||
2894 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2895 | struct nlattr *nl_reg_rule; | |
2896 | const struct ieee80211_reg_rule *reg_rule; | |
2897 | const struct ieee80211_freq_range *freq_range; | |
2898 | const struct ieee80211_power_rule *power_rule; | |
2899 | ||
2900 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2901 | freq_range = ®_rule->freq_range; | |
2902 | power_rule = ®_rule->power_rule; | |
2903 | ||
2904 | nl_reg_rule = nla_nest_start(msg, i); | |
2905 | if (!nl_reg_rule) | |
2906 | goto nla_put_failure; | |
2907 | ||
2908 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2909 | reg_rule->flags); | |
2910 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2911 | freq_range->start_freq_khz); | |
2912 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2913 | freq_range->end_freq_khz); | |
2914 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2915 | freq_range->max_bandwidth_khz); | |
2916 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2917 | power_rule->max_antenna_gain); | |
2918 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2919 | power_rule->max_eirp); | |
2920 | ||
2921 | nla_nest_end(msg, nl_reg_rule); | |
2922 | } | |
2923 | ||
2924 | nla_nest_end(msg, nl_reg_rules); | |
2925 | ||
2926 | genlmsg_end(msg, hdr); | |
134e6375 | 2927 | err = genlmsg_reply(msg, info); |
f130347c LR |
2928 | goto out; |
2929 | ||
2930 | nla_put_failure: | |
2931 | genlmsg_cancel(msg, hdr); | |
2932 | err = -EMSGSIZE; | |
2933 | out: | |
a1794390 | 2934 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2935 | return err; |
2936 | } | |
2937 | ||
b2e1b302 LR |
2938 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2939 | { | |
2940 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2941 | struct nlattr *nl_reg_rule; | |
2942 | char *alpha2 = NULL; | |
2943 | int rem_reg_rules = 0, r = 0; | |
2944 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2945 | struct ieee80211_regdomain *rd = NULL; | |
2946 | ||
2947 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2948 | return -EINVAL; | |
2949 | ||
2950 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2951 | return -EINVAL; | |
2952 | ||
2953 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2954 | ||
2955 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2956 | rem_reg_rules) { | |
2957 | num_rules++; | |
2958 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2959 | return -EINVAL; |
b2e1b302 LR |
2960 | } |
2961 | ||
61405e97 LR |
2962 | mutex_lock(&cfg80211_mutex); |
2963 | ||
d0e18f83 LR |
2964 | if (!reg_is_valid_request(alpha2)) { |
2965 | r = -EINVAL; | |
2966 | goto bad_reg; | |
2967 | } | |
b2e1b302 LR |
2968 | |
2969 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2970 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2971 | ||
2972 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2973 | if (!rd) { |
2974 | r = -ENOMEM; | |
2975 | goto bad_reg; | |
2976 | } | |
b2e1b302 LR |
2977 | |
2978 | rd->n_reg_rules = num_rules; | |
2979 | rd->alpha2[0] = alpha2[0]; | |
2980 | rd->alpha2[1] = alpha2[1]; | |
2981 | ||
2982 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2983 | rem_reg_rules) { | |
2984 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2985 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2986 | reg_rule_policy); | |
2987 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2988 | if (r) | |
2989 | goto bad_reg; | |
2990 | ||
2991 | rule_idx++; | |
2992 | ||
d0e18f83 LR |
2993 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2994 | r = -EINVAL; | |
b2e1b302 | 2995 | goto bad_reg; |
d0e18f83 | 2996 | } |
b2e1b302 LR |
2997 | } |
2998 | ||
2999 | BUG_ON(rule_idx != num_rules); | |
3000 | ||
b2e1b302 | 3001 | r = set_regdom(rd); |
61405e97 | 3002 | |
a1794390 | 3003 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 3004 | |
b2e1b302 LR |
3005 | return r; |
3006 | ||
d2372b31 | 3007 | bad_reg: |
61405e97 | 3008 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 3009 | kfree(rd); |
d0e18f83 | 3010 | return r; |
b2e1b302 LR |
3011 | } |
3012 | ||
83f5e2cf JB |
3013 | static int validate_scan_freqs(struct nlattr *freqs) |
3014 | { | |
3015 | struct nlattr *attr1, *attr2; | |
3016 | int n_channels = 0, tmp1, tmp2; | |
3017 | ||
3018 | nla_for_each_nested(attr1, freqs, tmp1) { | |
3019 | n_channels++; | |
3020 | /* | |
3021 | * Some hardware has a limited channel list for | |
3022 | * scanning, and it is pretty much nonsensical | |
3023 | * to scan for a channel twice, so disallow that | |
3024 | * and don't require drivers to check that the | |
3025 | * channel list they get isn't longer than what | |
3026 | * they can scan, as long as they can scan all | |
3027 | * the channels they registered at once. | |
3028 | */ | |
3029 | nla_for_each_nested(attr2, freqs, tmp2) | |
3030 | if (attr1 != attr2 && | |
3031 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
3032 | return 0; | |
3033 | } | |
3034 | ||
3035 | return n_channels; | |
3036 | } | |
3037 | ||
2a519311 JB |
3038 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
3039 | { | |
79c97e97 | 3040 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
3041 | struct net_device *dev; |
3042 | struct cfg80211_scan_request *request; | |
3043 | struct cfg80211_ssid *ssid; | |
3044 | struct ieee80211_channel *channel; | |
3045 | struct nlattr *attr; | |
3046 | struct wiphy *wiphy; | |
83f5e2cf | 3047 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 3048 | enum ieee80211_band band; |
70692ad2 | 3049 | size_t ie_len; |
2a519311 | 3050 | |
f4a11bb0 JB |
3051 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3052 | return -EINVAL; | |
3053 | ||
3b85875a JB |
3054 | rtnl_lock(); |
3055 | ||
463d0183 | 3056 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2a519311 | 3057 | if (err) |
3b85875a | 3058 | goto out_rtnl; |
2a519311 | 3059 | |
79c97e97 | 3060 | wiphy = &rdev->wiphy; |
2a519311 | 3061 | |
79c97e97 | 3062 | if (!rdev->ops->scan) { |
2a519311 JB |
3063 | err = -EOPNOTSUPP; |
3064 | goto out; | |
3065 | } | |
3066 | ||
35a8efe1 JM |
3067 | if (!netif_running(dev)) { |
3068 | err = -ENETDOWN; | |
3069 | goto out; | |
3070 | } | |
3071 | ||
79c97e97 | 3072 | if (rdev->scan_req) { |
2a519311 | 3073 | err = -EBUSY; |
3b85875a | 3074 | goto out; |
2a519311 JB |
3075 | } |
3076 | ||
3077 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
3078 | n_channels = validate_scan_freqs( |
3079 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
3080 | if (!n_channels) { |
3081 | err = -EINVAL; | |
3b85875a | 3082 | goto out; |
2a519311 JB |
3083 | } |
3084 | } else { | |
83f5e2cf JB |
3085 | n_channels = 0; |
3086 | ||
2a519311 JB |
3087 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
3088 | if (wiphy->bands[band]) | |
3089 | n_channels += wiphy->bands[band]->n_channels; | |
3090 | } | |
3091 | ||
3092 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3093 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
3094 | n_ssids++; | |
3095 | ||
3096 | if (n_ssids > wiphy->max_scan_ssids) { | |
3097 | err = -EINVAL; | |
3b85875a | 3098 | goto out; |
2a519311 JB |
3099 | } |
3100 | ||
70692ad2 JM |
3101 | if (info->attrs[NL80211_ATTR_IE]) |
3102 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3103 | else | |
3104 | ie_len = 0; | |
3105 | ||
18a83659 JB |
3106 | if (ie_len > wiphy->max_scan_ie_len) { |
3107 | err = -EINVAL; | |
3108 | goto out; | |
3109 | } | |
3110 | ||
2a519311 JB |
3111 | request = kzalloc(sizeof(*request) |
3112 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3113 | + sizeof(channel) * n_channels |
3114 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3115 | if (!request) { |
3116 | err = -ENOMEM; | |
3b85875a | 3117 | goto out; |
2a519311 JB |
3118 | } |
3119 | ||
2a519311 | 3120 | if (n_ssids) |
5ba63533 | 3121 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3122 | request->n_ssids = n_ssids; |
70692ad2 JM |
3123 | if (ie_len) { |
3124 | if (request->ssids) | |
3125 | request->ie = (void *)(request->ssids + n_ssids); | |
3126 | else | |
3127 | request->ie = (void *)(request->channels + n_channels); | |
3128 | } | |
2a519311 | 3129 | |
584991dc | 3130 | i = 0; |
2a519311 JB |
3131 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3132 | /* user specified, bail out if channel not found */ | |
2a519311 | 3133 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3134 | struct ieee80211_channel *chan; |
3135 | ||
3136 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3137 | ||
3138 | if (!chan) { | |
2a519311 JB |
3139 | err = -EINVAL; |
3140 | goto out_free; | |
3141 | } | |
584991dc JB |
3142 | |
3143 | /* ignore disabled channels */ | |
3144 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3145 | continue; | |
3146 | ||
3147 | request->channels[i] = chan; | |
2a519311 JB |
3148 | i++; |
3149 | } | |
3150 | } else { | |
3151 | /* all channels */ | |
2a519311 JB |
3152 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3153 | int j; | |
3154 | if (!wiphy->bands[band]) | |
3155 | continue; | |
3156 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3157 | struct ieee80211_channel *chan; |
3158 | ||
3159 | chan = &wiphy->bands[band]->channels[j]; | |
3160 | ||
3161 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3162 | continue; | |
3163 | ||
3164 | request->channels[i] = chan; | |
2a519311 JB |
3165 | i++; |
3166 | } | |
3167 | } | |
3168 | } | |
3169 | ||
584991dc JB |
3170 | if (!i) { |
3171 | err = -EINVAL; | |
3172 | goto out_free; | |
3173 | } | |
3174 | ||
3175 | request->n_channels = i; | |
3176 | ||
2a519311 JB |
3177 | i = 0; |
3178 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3179 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3180 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3181 | err = -EINVAL; | |
3182 | goto out_free; | |
3183 | } | |
3184 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3185 | request->ssids[i].ssid_len = nla_len(attr); | |
3186 | i++; | |
3187 | } | |
3188 | } | |
3189 | ||
70692ad2 JM |
3190 | if (info->attrs[NL80211_ATTR_IE]) { |
3191 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3192 | memcpy((void *)request->ie, |
3193 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3194 | request->ie_len); |
3195 | } | |
3196 | ||
463d0183 | 3197 | request->dev = dev; |
79c97e97 | 3198 | request->wiphy = &rdev->wiphy; |
2a519311 | 3199 | |
79c97e97 JB |
3200 | rdev->scan_req = request; |
3201 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3202 | |
463d0183 | 3203 | if (!err) { |
79c97e97 | 3204 | nl80211_send_scan_start(rdev, dev); |
463d0183 JB |
3205 | dev_hold(dev); |
3206 | } | |
a538e2d5 | 3207 | |
2a519311 JB |
3208 | out_free: |
3209 | if (err) { | |
79c97e97 | 3210 | rdev->scan_req = NULL; |
2a519311 JB |
3211 | kfree(request); |
3212 | } | |
2a519311 | 3213 | out: |
79c97e97 | 3214 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3215 | dev_put(dev); |
3b85875a JB |
3216 | out_rtnl: |
3217 | rtnl_unlock(); | |
3218 | ||
2a519311 JB |
3219 | return err; |
3220 | } | |
3221 | ||
3222 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3223 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3224 | struct wireless_dev *wdev, |
3225 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3226 | { |
48ab905d | 3227 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3228 | void *hdr; |
3229 | struct nlattr *bss; | |
48ab905d JB |
3230 | int i; |
3231 | ||
3232 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3233 | |
3234 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3235 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3236 | if (!hdr) | |
3237 | return -1; | |
3238 | ||
f5ea9120 | 3239 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3240 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3241 | |
3242 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3243 | if (!bss) | |
3244 | goto nla_put_failure; | |
3245 | if (!is_zero_ether_addr(res->bssid)) | |
3246 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3247 | if (res->information_elements && res->len_information_elements) | |
3248 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3249 | res->len_information_elements, | |
3250 | res->information_elements); | |
34a6eddb JM |
3251 | if (res->beacon_ies && res->len_beacon_ies && |
3252 | res->beacon_ies != res->information_elements) | |
3253 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3254 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3255 | if (res->tsf) |
3256 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3257 | if (res->beacon_interval) | |
3258 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3259 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3260 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3261 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3262 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3263 | |
77965c97 | 3264 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3265 | case CFG80211_SIGNAL_TYPE_MBM: |
3266 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3267 | break; | |
3268 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3269 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3270 | break; | |
3271 | default: | |
3272 | break; | |
3273 | } | |
3274 | ||
48ab905d JB |
3275 | switch (wdev->iftype) { |
3276 | case NL80211_IFTYPE_STATION: | |
3277 | if (intbss == wdev->current_bss) | |
3278 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3279 | NL80211_BSS_STATUS_ASSOCIATED); | |
3280 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3281 | if (intbss != wdev->auth_bsses[i]) | |
3282 | continue; | |
3283 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3284 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3285 | break; | |
3286 | } | |
3287 | break; | |
3288 | case NL80211_IFTYPE_ADHOC: | |
3289 | if (intbss == wdev->current_bss) | |
3290 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3291 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3292 | break; | |
3293 | default: | |
3294 | break; | |
3295 | } | |
3296 | ||
2a519311 JB |
3297 | nla_nest_end(msg, bss); |
3298 | ||
3299 | return genlmsg_end(msg, hdr); | |
3300 | ||
3301 | nla_put_failure: | |
3302 | genlmsg_cancel(msg, hdr); | |
3303 | return -EMSGSIZE; | |
3304 | } | |
3305 | ||
3306 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3307 | struct netlink_callback *cb) | |
3308 | { | |
48ab905d JB |
3309 | struct cfg80211_registered_device *rdev; |
3310 | struct net_device *dev; | |
2a519311 | 3311 | struct cfg80211_internal_bss *scan; |
48ab905d | 3312 | struct wireless_dev *wdev; |
2a519311 JB |
3313 | int ifidx = cb->args[0]; |
3314 | int start = cb->args[1], idx = 0; | |
3315 | int err; | |
3316 | ||
a043897a HS |
3317 | if (!ifidx) |
3318 | ifidx = nl80211_get_ifidx(cb); | |
3319 | if (ifidx < 0) | |
3320 | return ifidx; | |
3321 | cb->args[0] = ifidx; | |
2a519311 | 3322 | |
463d0183 | 3323 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3324 | if (!dev) |
2a519311 JB |
3325 | return -ENODEV; |
3326 | ||
463d0183 | 3327 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3328 | if (IS_ERR(rdev)) { |
3329 | err = PTR_ERR(rdev); | |
2a519311 JB |
3330 | goto out_put_netdev; |
3331 | } | |
3332 | ||
48ab905d | 3333 | wdev = dev->ieee80211_ptr; |
2a519311 | 3334 | |
48ab905d JB |
3335 | wdev_lock(wdev); |
3336 | spin_lock_bh(&rdev->bss_lock); | |
3337 | cfg80211_bss_expire(rdev); | |
3338 | ||
3339 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3340 | if (++idx <= start) |
3341 | continue; | |
3342 | if (nl80211_send_bss(skb, | |
3343 | NETLINK_CB(cb->skb).pid, | |
3344 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3345 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3346 | idx--; |
3347 | goto out; | |
3348 | } | |
3349 | } | |
3350 | ||
3351 | out: | |
48ab905d JB |
3352 | spin_unlock_bh(&rdev->bss_lock); |
3353 | wdev_unlock(wdev); | |
2a519311 JB |
3354 | |
3355 | cb->args[1] = idx; | |
3356 | err = skb->len; | |
48ab905d | 3357 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3358 | out_put_netdev: |
48ab905d | 3359 | dev_put(dev); |
2a519311 JB |
3360 | |
3361 | return err; | |
3362 | } | |
3363 | ||
61fa713c HS |
3364 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3365 | int flags, struct net_device *dev, | |
3366 | struct survey_info *survey) | |
3367 | { | |
3368 | void *hdr; | |
3369 | struct nlattr *infoattr; | |
3370 | ||
3371 | /* Survey without a channel doesn't make sense */ | |
3372 | if (!survey->channel) | |
3373 | return -EINVAL; | |
3374 | ||
3375 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3376 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3377 | if (!hdr) | |
3378 | return -ENOMEM; | |
3379 | ||
3380 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3381 | ||
3382 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3383 | if (!infoattr) | |
3384 | goto nla_put_failure; | |
3385 | ||
3386 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3387 | survey->channel->center_freq); | |
3388 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3389 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3390 | survey->noise); | |
3391 | ||
3392 | nla_nest_end(msg, infoattr); | |
3393 | ||
3394 | return genlmsg_end(msg, hdr); | |
3395 | ||
3396 | nla_put_failure: | |
3397 | genlmsg_cancel(msg, hdr); | |
3398 | return -EMSGSIZE; | |
3399 | } | |
3400 | ||
3401 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3402 | struct netlink_callback *cb) | |
3403 | { | |
3404 | struct survey_info survey; | |
3405 | struct cfg80211_registered_device *dev; | |
3406 | struct net_device *netdev; | |
3407 | int ifidx = cb->args[0]; | |
3408 | int survey_idx = cb->args[1]; | |
3409 | int res; | |
3410 | ||
3411 | if (!ifidx) | |
3412 | ifidx = nl80211_get_ifidx(cb); | |
3413 | if (ifidx < 0) | |
3414 | return ifidx; | |
3415 | cb->args[0] = ifidx; | |
3416 | ||
3417 | rtnl_lock(); | |
3418 | ||
3419 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3420 | if (!netdev) { | |
3421 | res = -ENODEV; | |
3422 | goto out_rtnl; | |
3423 | } | |
3424 | ||
3425 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3426 | if (IS_ERR(dev)) { | |
3427 | res = PTR_ERR(dev); | |
3428 | goto out_rtnl; | |
3429 | } | |
3430 | ||
3431 | if (!dev->ops->dump_survey) { | |
3432 | res = -EOPNOTSUPP; | |
3433 | goto out_err; | |
3434 | } | |
3435 | ||
3436 | while (1) { | |
3437 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3438 | &survey); | |
3439 | if (res == -ENOENT) | |
3440 | break; | |
3441 | if (res) | |
3442 | goto out_err; | |
3443 | ||
3444 | if (nl80211_send_survey(skb, | |
3445 | NETLINK_CB(cb->skb).pid, | |
3446 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3447 | netdev, | |
3448 | &survey) < 0) | |
3449 | goto out; | |
3450 | survey_idx++; | |
3451 | } | |
3452 | ||
3453 | out: | |
3454 | cb->args[1] = survey_idx; | |
3455 | res = skb->len; | |
3456 | out_err: | |
3457 | cfg80211_unlock_rdev(dev); | |
3458 | out_rtnl: | |
3459 | rtnl_unlock(); | |
3460 | ||
3461 | return res; | |
3462 | } | |
3463 | ||
255e737e JM |
3464 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3465 | { | |
b23aa676 SO |
3466 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3467 | } | |
3468 | ||
3469 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3470 | { | |
3471 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3472 | NL80211_WPA_VERSION_2)); | |
3473 | } | |
3474 | ||
3475 | static bool nl80211_valid_akm_suite(u32 akm) | |
3476 | { | |
3477 | return akm == WLAN_AKM_SUITE_8021X || | |
3478 | akm == WLAN_AKM_SUITE_PSK; | |
3479 | } | |
3480 | ||
3481 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3482 | { | |
3483 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3484 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3485 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3486 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3487 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3488 | } |
3489 | ||
b23aa676 | 3490 | |
636a5d36 JM |
3491 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3492 | { | |
79c97e97 | 3493 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3494 | struct net_device *dev; |
19957bb3 JB |
3495 | struct ieee80211_channel *chan; |
3496 | const u8 *bssid, *ssid, *ie = NULL; | |
3497 | int err, ssid_len, ie_len = 0; | |
3498 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3499 | struct key_parse key; |
d5cdfacb | 3500 | bool local_state_change; |
636a5d36 | 3501 | |
f4a11bb0 JB |
3502 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3503 | return -EINVAL; | |
3504 | ||
3505 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3506 | return -EINVAL; | |
3507 | ||
1778092e JM |
3508 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3509 | return -EINVAL; | |
3510 | ||
19957bb3 JB |
3511 | if (!info->attrs[NL80211_ATTR_SSID]) |
3512 | return -EINVAL; | |
3513 | ||
3514 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3515 | return -EINVAL; | |
3516 | ||
fffd0934 JB |
3517 | err = nl80211_parse_key(info, &key); |
3518 | if (err) | |
3519 | return err; | |
3520 | ||
3521 | if (key.idx >= 0) { | |
3522 | if (!key.p.key || !key.p.key_len) | |
3523 | return -EINVAL; | |
3524 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3525 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3526 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3527 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3528 | return -EINVAL; | |
3529 | if (key.idx > 4) | |
3530 | return -EINVAL; | |
3531 | } else { | |
3532 | key.p.key_len = 0; | |
3533 | key.p.key = NULL; | |
3534 | } | |
3535 | ||
636a5d36 JM |
3536 | rtnl_lock(); |
3537 | ||
463d0183 | 3538 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3539 | if (err) |
3540 | goto unlock_rtnl; | |
3541 | ||
79c97e97 | 3542 | if (!rdev->ops->auth) { |
636a5d36 JM |
3543 | err = -EOPNOTSUPP; |
3544 | goto out; | |
3545 | } | |
3546 | ||
eec60b03 JM |
3547 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3548 | err = -EOPNOTSUPP; | |
3549 | goto out; | |
3550 | } | |
3551 | ||
35a8efe1 JM |
3552 | if (!netif_running(dev)) { |
3553 | err = -ENETDOWN; | |
3554 | goto out; | |
3555 | } | |
3556 | ||
19957bb3 | 3557 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3558 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3559 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3560 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3561 | err = -EINVAL; | |
3562 | goto out; | |
636a5d36 JM |
3563 | } |
3564 | ||
19957bb3 JB |
3565 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3566 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3567 | |
3568 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3569 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3570 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3571 | } |
3572 | ||
19957bb3 JB |
3573 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3574 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3575 | err = -EINVAL; |
3576 | goto out; | |
636a5d36 JM |
3577 | } |
3578 | ||
d5cdfacb JM |
3579 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3580 | ||
79c97e97 | 3581 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 | 3582 | ssid, ssid_len, ie, ie_len, |
d5cdfacb JM |
3583 | key.p.key, key.p.key_len, key.idx, |
3584 | local_state_change); | |
636a5d36 JM |
3585 | |
3586 | out: | |
79c97e97 | 3587 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3588 | dev_put(dev); |
3589 | unlock_rtnl: | |
3590 | rtnl_unlock(); | |
3591 | return err; | |
3592 | } | |
3593 | ||
b23aa676 | 3594 | static int nl80211_crypto_settings(struct genl_info *info, |
3dc27d25 JB |
3595 | struct cfg80211_crypto_settings *settings, |
3596 | int cipher_limit) | |
b23aa676 | 3597 | { |
c0b2bbd8 JB |
3598 | memset(settings, 0, sizeof(*settings)); |
3599 | ||
b23aa676 SO |
3600 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3601 | ||
3602 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
3603 | void *data; | |
3604 | int len, i; | |
3605 | ||
3606 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3607 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3608 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3609 | ||
3610 | if (len % sizeof(u32)) | |
3611 | return -EINVAL; | |
3612 | ||
3dc27d25 | 3613 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3614 | return -EINVAL; |
3615 | ||
3616 | memcpy(settings->ciphers_pairwise, data, len); | |
3617 | ||
3618 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3619 | if (!nl80211_valid_cipher_suite( | |
3620 | settings->ciphers_pairwise[i])) | |
3621 | return -EINVAL; | |
3622 | } | |
3623 | ||
3624 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3625 | settings->cipher_group = | |
3626 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3627 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3628 | return -EINVAL; | |
3629 | } | |
3630 | ||
3631 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3632 | settings->wpa_versions = | |
3633 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3634 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3635 | return -EINVAL; | |
3636 | } | |
3637 | ||
3638 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3639 | void *data; | |
3640 | int len, i; | |
3641 | ||
3642 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3643 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3644 | settings->n_akm_suites = len / sizeof(u32); | |
3645 | ||
3646 | if (len % sizeof(u32)) | |
3647 | return -EINVAL; | |
3648 | ||
3649 | memcpy(settings->akm_suites, data, len); | |
3650 | ||
3651 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3652 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3653 | return -EINVAL; | |
3654 | } | |
3655 | ||
3656 | return 0; | |
3657 | } | |
3658 | ||
636a5d36 JM |
3659 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3660 | { | |
19957bb3 | 3661 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3662 | struct net_device *dev; |
19957bb3 | 3663 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3664 | struct ieee80211_channel *chan; |
3e5d7649 | 3665 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3666 | int err, ssid_len, ie_len = 0; |
3667 | bool use_mfp = false; | |
636a5d36 | 3668 | |
f4a11bb0 JB |
3669 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3670 | return -EINVAL; | |
3671 | ||
3672 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3673 | !info->attrs[NL80211_ATTR_SSID] || |
3674 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3675 | return -EINVAL; |
3676 | ||
636a5d36 JM |
3677 | rtnl_lock(); |
3678 | ||
463d0183 | 3679 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3680 | if (err) |
3681 | goto unlock_rtnl; | |
3682 | ||
19957bb3 | 3683 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3684 | err = -EOPNOTSUPP; |
3685 | goto out; | |
3686 | } | |
3687 | ||
eec60b03 JM |
3688 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3689 | err = -EOPNOTSUPP; | |
3690 | goto out; | |
3691 | } | |
3692 | ||
35a8efe1 JM |
3693 | if (!netif_running(dev)) { |
3694 | err = -ENETDOWN; | |
3695 | goto out; | |
3696 | } | |
3697 | ||
19957bb3 | 3698 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3699 | |
19957bb3 JB |
3700 | chan = ieee80211_get_channel(&rdev->wiphy, |
3701 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3702 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3703 | err = -EINVAL; | |
3704 | goto out; | |
636a5d36 JM |
3705 | } |
3706 | ||
19957bb3 JB |
3707 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3708 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3709 | |
3710 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3711 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3712 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3713 | } |
3714 | ||
dc6382ce | 3715 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3716 | enum nl80211_mfp mfp = |
dc6382ce | 3717 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3718 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3719 | use_mfp = true; |
4f5dadce | 3720 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3721 | err = -EINVAL; |
3722 | goto out; | |
3723 | } | |
3724 | } | |
3725 | ||
3e5d7649 JB |
3726 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3727 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3728 | ||
3dc27d25 | 3729 | err = nl80211_crypto_settings(info, &crypto, 1); |
b23aa676 | 3730 | if (!err) |
3e5d7649 JB |
3731 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3732 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3733 | &crypto); |
636a5d36 JM |
3734 | |
3735 | out: | |
4d0c8aea | 3736 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3737 | dev_put(dev); |
3738 | unlock_rtnl: | |
3739 | rtnl_unlock(); | |
3740 | return err; | |
3741 | } | |
3742 | ||
3743 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3744 | { | |
79c97e97 | 3745 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3746 | struct net_device *dev; |
19957bb3 JB |
3747 | const u8 *ie = NULL, *bssid; |
3748 | int err, ie_len = 0; | |
3749 | u16 reason_code; | |
d5cdfacb | 3750 | bool local_state_change; |
636a5d36 | 3751 | |
f4a11bb0 JB |
3752 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3753 | return -EINVAL; | |
3754 | ||
3755 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3756 | return -EINVAL; | |
3757 | ||
3758 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3759 | return -EINVAL; | |
3760 | ||
636a5d36 JM |
3761 | rtnl_lock(); |
3762 | ||
463d0183 | 3763 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3764 | if (err) |
3765 | goto unlock_rtnl; | |
3766 | ||
79c97e97 | 3767 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3768 | err = -EOPNOTSUPP; |
3769 | goto out; | |
3770 | } | |
3771 | ||
eec60b03 JM |
3772 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3773 | err = -EOPNOTSUPP; | |
3774 | goto out; | |
3775 | } | |
3776 | ||
35a8efe1 JM |
3777 | if (!netif_running(dev)) { |
3778 | err = -ENETDOWN; | |
3779 | goto out; | |
3780 | } | |
3781 | ||
19957bb3 | 3782 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3783 | |
19957bb3 JB |
3784 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3785 | if (reason_code == 0) { | |
f4a11bb0 JB |
3786 | /* Reason Code 0 is reserved */ |
3787 | err = -EINVAL; | |
3788 | goto out; | |
255e737e | 3789 | } |
636a5d36 JM |
3790 | |
3791 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3792 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3793 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3794 | } |
3795 | ||
d5cdfacb JM |
3796 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3797 | ||
3798 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
3799 | local_state_change); | |
636a5d36 JM |
3800 | |
3801 | out: | |
79c97e97 | 3802 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3803 | dev_put(dev); |
3804 | unlock_rtnl: | |
3805 | rtnl_unlock(); | |
3806 | return err; | |
3807 | } | |
3808 | ||
3809 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3810 | { | |
79c97e97 | 3811 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3812 | struct net_device *dev; |
19957bb3 JB |
3813 | const u8 *ie = NULL, *bssid; |
3814 | int err, ie_len = 0; | |
3815 | u16 reason_code; | |
d5cdfacb | 3816 | bool local_state_change; |
636a5d36 | 3817 | |
f4a11bb0 JB |
3818 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3819 | return -EINVAL; | |
3820 | ||
3821 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3822 | return -EINVAL; | |
3823 | ||
3824 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3825 | return -EINVAL; | |
3826 | ||
636a5d36 JM |
3827 | rtnl_lock(); |
3828 | ||
463d0183 | 3829 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3830 | if (err) |
3831 | goto unlock_rtnl; | |
3832 | ||
79c97e97 | 3833 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3834 | err = -EOPNOTSUPP; |
3835 | goto out; | |
3836 | } | |
3837 | ||
eec60b03 JM |
3838 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3839 | err = -EOPNOTSUPP; | |
3840 | goto out; | |
3841 | } | |
3842 | ||
35a8efe1 JM |
3843 | if (!netif_running(dev)) { |
3844 | err = -ENETDOWN; | |
3845 | goto out; | |
3846 | } | |
3847 | ||
19957bb3 | 3848 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3849 | |
19957bb3 JB |
3850 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3851 | if (reason_code == 0) { | |
f4a11bb0 JB |
3852 | /* Reason Code 0 is reserved */ |
3853 | err = -EINVAL; | |
3854 | goto out; | |
255e737e | 3855 | } |
636a5d36 JM |
3856 | |
3857 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3858 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3859 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3860 | } |
3861 | ||
d5cdfacb JM |
3862 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3863 | ||
3864 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
3865 | local_state_change); | |
636a5d36 JM |
3866 | |
3867 | out: | |
79c97e97 | 3868 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3869 | dev_put(dev); |
3870 | unlock_rtnl: | |
3871 | rtnl_unlock(); | |
3872 | return err; | |
3873 | } | |
3874 | ||
04a773ad JB |
3875 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3876 | { | |
79c97e97 | 3877 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3878 | struct net_device *dev; |
3879 | struct cfg80211_ibss_params ibss; | |
3880 | struct wiphy *wiphy; | |
fffd0934 | 3881 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3882 | int err; |
3883 | ||
8e30bc55 JB |
3884 | memset(&ibss, 0, sizeof(ibss)); |
3885 | ||
04a773ad JB |
3886 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3887 | return -EINVAL; | |
3888 | ||
3889 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3890 | !info->attrs[NL80211_ATTR_SSID] || | |
3891 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3892 | return -EINVAL; | |
3893 | ||
8e30bc55 JB |
3894 | ibss.beacon_interval = 100; |
3895 | ||
3896 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3897 | ibss.beacon_interval = | |
3898 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3899 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3900 | return -EINVAL; | |
3901 | } | |
3902 | ||
04a773ad JB |
3903 | rtnl_lock(); |
3904 | ||
463d0183 | 3905 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3906 | if (err) |
3907 | goto unlock_rtnl; | |
3908 | ||
79c97e97 | 3909 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
3910 | err = -EOPNOTSUPP; |
3911 | goto out; | |
3912 | } | |
3913 | ||
3914 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3915 | err = -EOPNOTSUPP; | |
3916 | goto out; | |
3917 | } | |
3918 | ||
3919 | if (!netif_running(dev)) { | |
3920 | err = -ENETDOWN; | |
3921 | goto out; | |
3922 | } | |
3923 | ||
79c97e97 | 3924 | wiphy = &rdev->wiphy; |
04a773ad JB |
3925 | |
3926 | if (info->attrs[NL80211_ATTR_MAC]) | |
3927 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3928 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3929 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3930 | ||
3931 | if (info->attrs[NL80211_ATTR_IE]) { | |
3932 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3933 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3934 | } | |
3935 | ||
3936 | ibss.channel = ieee80211_get_channel(wiphy, | |
3937 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3938 | if (!ibss.channel || | |
3939 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
3940 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
3941 | err = -EINVAL; | |
3942 | goto out; | |
3943 | } | |
3944 | ||
3945 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3946 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3947 | ||
3948 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
3949 | connkeys = nl80211_parse_connkeys(rdev, | |
3950 | info->attrs[NL80211_ATTR_KEYS]); | |
3951 | if (IS_ERR(connkeys)) { | |
3952 | err = PTR_ERR(connkeys); | |
3953 | connkeys = NULL; | |
3954 | goto out; | |
3955 | } | |
3956 | } | |
04a773ad | 3957 | |
fffd0934 | 3958 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
3959 | |
3960 | out: | |
79c97e97 | 3961 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
3962 | dev_put(dev); |
3963 | unlock_rtnl: | |
fffd0934 JB |
3964 | if (err) |
3965 | kfree(connkeys); | |
04a773ad JB |
3966 | rtnl_unlock(); |
3967 | return err; | |
3968 | } | |
3969 | ||
3970 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3971 | { | |
79c97e97 | 3972 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3973 | struct net_device *dev; |
3974 | int err; | |
3975 | ||
3976 | rtnl_lock(); | |
3977 | ||
463d0183 | 3978 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
3979 | if (err) |
3980 | goto unlock_rtnl; | |
3981 | ||
79c97e97 | 3982 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
3983 | err = -EOPNOTSUPP; |
3984 | goto out; | |
3985 | } | |
3986 | ||
3987 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
3988 | err = -EOPNOTSUPP; | |
3989 | goto out; | |
3990 | } | |
3991 | ||
3992 | if (!netif_running(dev)) { | |
3993 | err = -ENETDOWN; | |
3994 | goto out; | |
3995 | } | |
3996 | ||
79c97e97 | 3997 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3998 | |
3999 | out: | |
79c97e97 | 4000 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
4001 | dev_put(dev); |
4002 | unlock_rtnl: | |
4003 | rtnl_unlock(); | |
4004 | return err; | |
4005 | } | |
4006 | ||
aff89a9b JB |
4007 | #ifdef CONFIG_NL80211_TESTMODE |
4008 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
4009 | .name = "testmode", | |
4010 | }; | |
4011 | ||
4012 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
4013 | { | |
4014 | struct cfg80211_registered_device *rdev; | |
4015 | int err; | |
4016 | ||
4017 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
4018 | return -EINVAL; | |
4019 | ||
4020 | rtnl_lock(); | |
4021 | ||
4022 | rdev = cfg80211_get_dev_from_info(info); | |
4023 | if (IS_ERR(rdev)) { | |
4024 | err = PTR_ERR(rdev); | |
4025 | goto unlock_rtnl; | |
4026 | } | |
4027 | ||
4028 | err = -EOPNOTSUPP; | |
4029 | if (rdev->ops->testmode_cmd) { | |
4030 | rdev->testmode_info = info; | |
4031 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
4032 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
4033 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
4034 | rdev->testmode_info = NULL; | |
4035 | } | |
4036 | ||
4d0c8aea | 4037 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
4038 | |
4039 | unlock_rtnl: | |
4040 | rtnl_unlock(); | |
4041 | return err; | |
4042 | } | |
4043 | ||
4044 | static struct sk_buff * | |
4045 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
4046 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
4047 | { | |
4048 | struct sk_buff *skb; | |
4049 | void *hdr; | |
4050 | struct nlattr *data; | |
4051 | ||
4052 | skb = nlmsg_new(approxlen + 100, gfp); | |
4053 | if (!skb) | |
4054 | return NULL; | |
4055 | ||
4056 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
4057 | if (!hdr) { | |
4058 | kfree_skb(skb); | |
4059 | return NULL; | |
4060 | } | |
4061 | ||
4062 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4063 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
4064 | ||
4065 | ((void **)skb->cb)[0] = rdev; | |
4066 | ((void **)skb->cb)[1] = hdr; | |
4067 | ((void **)skb->cb)[2] = data; | |
4068 | ||
4069 | return skb; | |
4070 | ||
4071 | nla_put_failure: | |
4072 | kfree_skb(skb); | |
4073 | return NULL; | |
4074 | } | |
4075 | ||
4076 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
4077 | int approxlen) | |
4078 | { | |
4079 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4080 | ||
4081 | if (WARN_ON(!rdev->testmode_info)) | |
4082 | return NULL; | |
4083 | ||
4084 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
4085 | rdev->testmode_info->snd_pid, | |
4086 | rdev->testmode_info->snd_seq, | |
4087 | GFP_KERNEL); | |
4088 | } | |
4089 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
4090 | ||
4091 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
4092 | { | |
4093 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
4094 | void *hdr = ((void **)skb->cb)[1]; | |
4095 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4096 | ||
4097 | if (WARN_ON(!rdev->testmode_info)) { | |
4098 | kfree_skb(skb); | |
4099 | return -EINVAL; | |
4100 | } | |
4101 | ||
4102 | nla_nest_end(skb, data); | |
4103 | genlmsg_end(skb, hdr); | |
4104 | return genlmsg_reply(skb, rdev->testmode_info); | |
4105 | } | |
4106 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
4107 | ||
4108 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
4109 | int approxlen, gfp_t gfp) | |
4110 | { | |
4111 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4112 | ||
4113 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
4114 | } | |
4115 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
4116 | ||
4117 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
4118 | { | |
4119 | void *hdr = ((void **)skb->cb)[1]; | |
4120 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4121 | ||
4122 | nla_nest_end(skb, data); | |
4123 | genlmsg_end(skb, hdr); | |
4124 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
4125 | } | |
4126 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
4127 | #endif | |
4128 | ||
b23aa676 SO |
4129 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
4130 | { | |
79c97e97 | 4131 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4132 | struct net_device *dev; |
4133 | struct cfg80211_connect_params connect; | |
4134 | struct wiphy *wiphy; | |
fffd0934 | 4135 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
4136 | int err; |
4137 | ||
4138 | memset(&connect, 0, sizeof(connect)); | |
4139 | ||
4140 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4141 | return -EINVAL; | |
4142 | ||
4143 | if (!info->attrs[NL80211_ATTR_SSID] || | |
4144 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4145 | return -EINVAL; | |
4146 | ||
4147 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
4148 | connect.auth_type = | |
4149 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
4150 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
4151 | return -EINVAL; | |
4152 | } else | |
4153 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
4154 | ||
4155 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
4156 | ||
3dc27d25 JB |
4157 | err = nl80211_crypto_settings(info, &connect.crypto, |
4158 | NL80211_MAX_NR_CIPHER_SUITES); | |
b23aa676 SO |
4159 | if (err) |
4160 | return err; | |
4161 | rtnl_lock(); | |
4162 | ||
463d0183 | 4163 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4164 | if (err) |
4165 | goto unlock_rtnl; | |
4166 | ||
4167 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4168 | err = -EOPNOTSUPP; | |
4169 | goto out; | |
4170 | } | |
4171 | ||
4172 | if (!netif_running(dev)) { | |
4173 | err = -ENETDOWN; | |
4174 | goto out; | |
4175 | } | |
4176 | ||
79c97e97 | 4177 | wiphy = &rdev->wiphy; |
b23aa676 | 4178 | |
b23aa676 SO |
4179 | if (info->attrs[NL80211_ATTR_MAC]) |
4180 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4181 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4182 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4183 | ||
4184 | if (info->attrs[NL80211_ATTR_IE]) { | |
4185 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4186 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4187 | } | |
4188 | ||
4189 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
4190 | connect.channel = | |
4191 | ieee80211_get_channel(wiphy, | |
4192 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4193 | if (!connect.channel || | |
4194 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4195 | err = -EINVAL; | |
4196 | goto out; | |
4197 | } | |
4198 | } | |
4199 | ||
fffd0934 JB |
4200 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4201 | connkeys = nl80211_parse_connkeys(rdev, | |
4202 | info->attrs[NL80211_ATTR_KEYS]); | |
4203 | if (IS_ERR(connkeys)) { | |
4204 | err = PTR_ERR(connkeys); | |
4205 | connkeys = NULL; | |
4206 | goto out; | |
4207 | } | |
4208 | } | |
4209 | ||
4210 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
4211 | |
4212 | out: | |
79c97e97 | 4213 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4214 | dev_put(dev); |
4215 | unlock_rtnl: | |
fffd0934 JB |
4216 | if (err) |
4217 | kfree(connkeys); | |
b23aa676 SO |
4218 | rtnl_unlock(); |
4219 | return err; | |
4220 | } | |
4221 | ||
4222 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4223 | { | |
79c97e97 | 4224 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4225 | struct net_device *dev; |
4226 | int err; | |
4227 | u16 reason; | |
4228 | ||
4229 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4230 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4231 | else | |
4232 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4233 | ||
4234 | if (reason == 0) | |
4235 | return -EINVAL; | |
4236 | ||
4237 | rtnl_lock(); | |
4238 | ||
463d0183 | 4239 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4240 | if (err) |
4241 | goto unlock_rtnl; | |
4242 | ||
4243 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4244 | err = -EOPNOTSUPP; | |
4245 | goto out; | |
4246 | } | |
4247 | ||
4248 | if (!netif_running(dev)) { | |
4249 | err = -ENETDOWN; | |
4250 | goto out; | |
4251 | } | |
4252 | ||
79c97e97 | 4253 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4254 | |
4255 | out: | |
79c97e97 | 4256 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4257 | dev_put(dev); |
4258 | unlock_rtnl: | |
4259 | rtnl_unlock(); | |
4260 | return err; | |
4261 | } | |
4262 | ||
463d0183 JB |
4263 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4264 | { | |
4265 | struct cfg80211_registered_device *rdev; | |
4266 | struct net *net; | |
4267 | int err; | |
4268 | u32 pid; | |
4269 | ||
4270 | if (!info->attrs[NL80211_ATTR_PID]) | |
4271 | return -EINVAL; | |
4272 | ||
4273 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4274 | ||
4275 | rtnl_lock(); | |
4276 | ||
4277 | rdev = cfg80211_get_dev_from_info(info); | |
4278 | if (IS_ERR(rdev)) { | |
4279 | err = PTR_ERR(rdev); | |
8a8e05e5 | 4280 | goto out_rtnl; |
463d0183 JB |
4281 | } |
4282 | ||
4283 | net = get_net_ns_by_pid(pid); | |
4284 | if (IS_ERR(net)) { | |
4285 | err = PTR_ERR(net); | |
4286 | goto out; | |
4287 | } | |
4288 | ||
4289 | err = 0; | |
4290 | ||
4291 | /* check if anything to do */ | |
4292 | if (net_eq(wiphy_net(&rdev->wiphy), net)) | |
4293 | goto out_put_net; | |
4294 | ||
4295 | err = cfg80211_switch_netns(rdev, net); | |
4296 | out_put_net: | |
4297 | put_net(net); | |
4298 | out: | |
4299 | cfg80211_unlock_rdev(rdev); | |
8a8e05e5 | 4300 | out_rtnl: |
463d0183 JB |
4301 | rtnl_unlock(); |
4302 | return err; | |
4303 | } | |
4304 | ||
67fbb16b SO |
4305 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4306 | { | |
4307 | struct cfg80211_registered_device *rdev; | |
4308 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
4309 | struct cfg80211_pmksa *pmksa) = NULL; | |
4310 | int err; | |
4311 | struct net_device *dev; | |
4312 | struct cfg80211_pmksa pmksa; | |
4313 | ||
4314 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4315 | ||
4316 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4317 | return -EINVAL; | |
4318 | ||
4319 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4320 | return -EINVAL; | |
4321 | ||
4322 | rtnl_lock(); | |
4323 | ||
4324 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4325 | if (err) | |
4326 | goto out_rtnl; | |
4327 | ||
4328 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
4329 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4330 | ||
4331 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4332 | err = -EOPNOTSUPP; | |
4333 | goto out; | |
4334 | } | |
4335 | ||
4336 | switch (info->genlhdr->cmd) { | |
4337 | case NL80211_CMD_SET_PMKSA: | |
4338 | rdev_ops = rdev->ops->set_pmksa; | |
4339 | break; | |
4340 | case NL80211_CMD_DEL_PMKSA: | |
4341 | rdev_ops = rdev->ops->del_pmksa; | |
4342 | break; | |
4343 | default: | |
4344 | WARN_ON(1); | |
4345 | break; | |
4346 | } | |
4347 | ||
4348 | if (!rdev_ops) { | |
4349 | err = -EOPNOTSUPP; | |
4350 | goto out; | |
4351 | } | |
4352 | ||
4353 | err = rdev_ops(&rdev->wiphy, dev, &pmksa); | |
4354 | ||
4355 | out: | |
4356 | cfg80211_unlock_rdev(rdev); | |
4357 | dev_put(dev); | |
4358 | out_rtnl: | |
4359 | rtnl_unlock(); | |
4360 | ||
4361 | return err; | |
4362 | } | |
4363 | ||
4364 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4365 | { | |
4366 | struct cfg80211_registered_device *rdev; | |
4367 | int err; | |
4368 | struct net_device *dev; | |
4369 | ||
4370 | rtnl_lock(); | |
4371 | ||
4372 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4373 | if (err) | |
4374 | goto out_rtnl; | |
4375 | ||
4376 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4377 | err = -EOPNOTSUPP; | |
4378 | goto out; | |
4379 | } | |
4380 | ||
4381 | if (!rdev->ops->flush_pmksa) { | |
4382 | err = -EOPNOTSUPP; | |
4383 | goto out; | |
4384 | } | |
4385 | ||
4386 | err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); | |
4387 | ||
4388 | out: | |
4389 | cfg80211_unlock_rdev(rdev); | |
4390 | dev_put(dev); | |
4391 | out_rtnl: | |
4392 | rtnl_unlock(); | |
4393 | ||
4394 | return err; | |
4395 | ||
4396 | } | |
4397 | ||
9588bbd5 JM |
4398 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4399 | struct genl_info *info) | |
4400 | { | |
4401 | struct cfg80211_registered_device *rdev; | |
4402 | struct net_device *dev; | |
4403 | struct ieee80211_channel *chan; | |
4404 | struct sk_buff *msg; | |
4405 | void *hdr; | |
4406 | u64 cookie; | |
4407 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4408 | u32 freq, duration; | |
4409 | int err; | |
4410 | ||
4411 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4412 | !info->attrs[NL80211_ATTR_DURATION]) | |
4413 | return -EINVAL; | |
4414 | ||
4415 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4416 | ||
4417 | /* | |
4418 | * We should be on that channel for at least one jiffie, | |
4419 | * and more than 5 seconds seems excessive. | |
4420 | */ | |
4421 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4422 | return -EINVAL; | |
4423 | ||
4424 | rtnl_lock(); | |
4425 | ||
4426 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4427 | if (err) | |
4428 | goto unlock_rtnl; | |
4429 | ||
4430 | if (!rdev->ops->remain_on_channel) { | |
4431 | err = -EOPNOTSUPP; | |
4432 | goto out; | |
4433 | } | |
4434 | ||
4435 | if (!netif_running(dev)) { | |
4436 | err = -ENETDOWN; | |
4437 | goto out; | |
4438 | } | |
4439 | ||
4440 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4441 | channel_type = nla_get_u32( | |
4442 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4443 | if (channel_type != NL80211_CHAN_NO_HT && | |
4444 | channel_type != NL80211_CHAN_HT20 && | |
4445 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4446 | channel_type != NL80211_CHAN_HT40MINUS) { |
9588bbd5 JM |
4447 | err = -EINVAL; |
4448 | goto out; | |
579d7534 | 4449 | } |
9588bbd5 JM |
4450 | } |
4451 | ||
4452 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4453 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4454 | if (chan == NULL) { | |
4455 | err = -EINVAL; | |
4456 | goto out; | |
4457 | } | |
4458 | ||
4459 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4460 | if (!msg) { | |
4461 | err = -ENOMEM; | |
4462 | goto out; | |
4463 | } | |
4464 | ||
4465 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4466 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4467 | ||
4468 | if (IS_ERR(hdr)) { | |
4469 | err = PTR_ERR(hdr); | |
4470 | goto free_msg; | |
4471 | } | |
4472 | ||
4473 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4474 | channel_type, duration, &cookie); | |
4475 | ||
4476 | if (err) | |
4477 | goto free_msg; | |
4478 | ||
4479 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4480 | ||
4481 | genlmsg_end(msg, hdr); | |
4482 | err = genlmsg_reply(msg, info); | |
4483 | goto out; | |
4484 | ||
4485 | nla_put_failure: | |
4486 | err = -ENOBUFS; | |
4487 | free_msg: | |
4488 | nlmsg_free(msg); | |
4489 | out: | |
4490 | cfg80211_unlock_rdev(rdev); | |
4491 | dev_put(dev); | |
4492 | unlock_rtnl: | |
4493 | rtnl_unlock(); | |
4494 | return err; | |
4495 | } | |
4496 | ||
4497 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4498 | struct genl_info *info) | |
4499 | { | |
4500 | struct cfg80211_registered_device *rdev; | |
4501 | struct net_device *dev; | |
4502 | u64 cookie; | |
4503 | int err; | |
4504 | ||
4505 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4506 | return -EINVAL; | |
4507 | ||
4508 | rtnl_lock(); | |
4509 | ||
4510 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4511 | if (err) | |
4512 | goto unlock_rtnl; | |
4513 | ||
4514 | if (!rdev->ops->cancel_remain_on_channel) { | |
4515 | err = -EOPNOTSUPP; | |
4516 | goto out; | |
4517 | } | |
4518 | ||
4519 | if (!netif_running(dev)) { | |
4520 | err = -ENETDOWN; | |
4521 | goto out; | |
4522 | } | |
4523 | ||
4524 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4525 | ||
4526 | err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); | |
4527 | ||
4528 | out: | |
4529 | cfg80211_unlock_rdev(rdev); | |
4530 | dev_put(dev); | |
4531 | unlock_rtnl: | |
4532 | rtnl_unlock(); | |
4533 | return err; | |
4534 | } | |
4535 | ||
13ae75b1 JM |
4536 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4537 | u8 *rates, u8 rates_len) | |
4538 | { | |
4539 | u8 i; | |
4540 | u32 mask = 0; | |
4541 | ||
4542 | for (i = 0; i < rates_len; i++) { | |
4543 | int rate = (rates[i] & 0x7f) * 5; | |
4544 | int ridx; | |
4545 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4546 | struct ieee80211_rate *srate = | |
4547 | &sband->bitrates[ridx]; | |
4548 | if (rate == srate->bitrate) { | |
4549 | mask |= 1 << ridx; | |
4550 | break; | |
4551 | } | |
4552 | } | |
4553 | if (ridx == sband->n_bitrates) | |
4554 | return 0; /* rate not found */ | |
4555 | } | |
4556 | ||
4557 | return mask; | |
4558 | } | |
4559 | ||
b54452b0 | 4560 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4561 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4562 | .len = NL80211_MAX_SUPP_RATES }, | |
4563 | }; | |
4564 | ||
4565 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4566 | struct genl_info *info) | |
4567 | { | |
4568 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4569 | struct cfg80211_registered_device *rdev; | |
4570 | struct cfg80211_bitrate_mask mask; | |
4571 | int err, rem, i; | |
4572 | struct net_device *dev; | |
4573 | struct nlattr *tx_rates; | |
4574 | struct ieee80211_supported_band *sband; | |
4575 | ||
4576 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4577 | return -EINVAL; | |
4578 | ||
4579 | rtnl_lock(); | |
4580 | ||
4581 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4582 | if (err) | |
4583 | goto unlock_rtnl; | |
4584 | ||
4585 | if (!rdev->ops->set_bitrate_mask) { | |
4586 | err = -EOPNOTSUPP; | |
4587 | goto unlock; | |
4588 | } | |
4589 | ||
4590 | memset(&mask, 0, sizeof(mask)); | |
4591 | /* Default to all rates enabled */ | |
4592 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4593 | sband = rdev->wiphy.bands[i]; | |
4594 | mask.control[i].legacy = | |
4595 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4596 | } | |
4597 | ||
4598 | /* | |
4599 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4600 | * directly to the enum ieee80211_band values used in cfg80211. | |
4601 | */ | |
4602 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4603 | { | |
4604 | enum ieee80211_band band = nla_type(tx_rates); | |
4605 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
4606 | err = -EINVAL; | |
4607 | goto unlock; | |
4608 | } | |
4609 | sband = rdev->wiphy.bands[band]; | |
4610 | if (sband == NULL) { | |
4611 | err = -EINVAL; | |
4612 | goto unlock; | |
4613 | } | |
4614 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
4615 | nla_len(tx_rates), nl80211_txattr_policy); | |
4616 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4617 | mask.control[band].legacy = rateset_to_mask( | |
4618 | sband, | |
4619 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4620 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4621 | if (mask.control[band].legacy == 0) { | |
4622 | err = -EINVAL; | |
4623 | goto unlock; | |
4624 | } | |
4625 | } | |
4626 | } | |
4627 | ||
4628 | err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); | |
4629 | ||
4630 | unlock: | |
4631 | dev_put(dev); | |
4632 | cfg80211_unlock_rdev(rdev); | |
4633 | unlock_rtnl: | |
4634 | rtnl_unlock(); | |
4635 | return err; | |
4636 | } | |
4637 | ||
026331c4 JM |
4638 | static int nl80211_register_action(struct sk_buff *skb, struct genl_info *info) |
4639 | { | |
4640 | struct cfg80211_registered_device *rdev; | |
4641 | struct net_device *dev; | |
4642 | int err; | |
4643 | ||
4644 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4645 | return -EINVAL; | |
4646 | ||
4647 | if (nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]) < 1) | |
4648 | return -EINVAL; | |
4649 | ||
4650 | rtnl_lock(); | |
4651 | ||
4652 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4653 | if (err) | |
4654 | goto unlock_rtnl; | |
4655 | ||
4656 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4657 | err = -EOPNOTSUPP; | |
4658 | goto out; | |
4659 | } | |
4660 | ||
4661 | /* not much point in registering if we can't reply */ | |
4662 | if (!rdev->ops->action) { | |
4663 | err = -EOPNOTSUPP; | |
4664 | goto out; | |
4665 | } | |
4666 | ||
4667 | err = cfg80211_mlme_register_action(dev->ieee80211_ptr, info->snd_pid, | |
4668 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), | |
4669 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
4670 | out: | |
4671 | cfg80211_unlock_rdev(rdev); | |
4672 | dev_put(dev); | |
4673 | unlock_rtnl: | |
4674 | rtnl_unlock(); | |
4675 | return err; | |
4676 | } | |
4677 | ||
4678 | static int nl80211_action(struct sk_buff *skb, struct genl_info *info) | |
4679 | { | |
4680 | struct cfg80211_registered_device *rdev; | |
4681 | struct net_device *dev; | |
4682 | struct ieee80211_channel *chan; | |
4683 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4684 | bool channel_type_valid = false; |
026331c4 JM |
4685 | u32 freq; |
4686 | int err; | |
4687 | void *hdr; | |
4688 | u64 cookie; | |
4689 | struct sk_buff *msg; | |
4690 | ||
4691 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4692 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4693 | return -EINVAL; | |
4694 | ||
4695 | rtnl_lock(); | |
4696 | ||
4697 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4698 | if (err) | |
4699 | goto unlock_rtnl; | |
4700 | ||
4701 | if (!rdev->ops->action) { | |
4702 | err = -EOPNOTSUPP; | |
4703 | goto out; | |
4704 | } | |
4705 | ||
4706 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4707 | err = -EOPNOTSUPP; | |
4708 | goto out; | |
4709 | } | |
4710 | ||
4711 | if (!netif_running(dev)) { | |
4712 | err = -ENETDOWN; | |
4713 | goto out; | |
4714 | } | |
4715 | ||
4716 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4717 | channel_type = nla_get_u32( | |
4718 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4719 | if (channel_type != NL80211_CHAN_NO_HT && | |
4720 | channel_type != NL80211_CHAN_HT20 && | |
4721 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4722 | channel_type != NL80211_CHAN_HT40MINUS) { |
026331c4 JM |
4723 | err = -EINVAL; |
4724 | goto out; | |
579d7534 | 4725 | } |
252aa631 | 4726 | channel_type_valid = true; |
026331c4 JM |
4727 | } |
4728 | ||
4729 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4730 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4731 | if (chan == NULL) { | |
4732 | err = -EINVAL; | |
4733 | goto out; | |
4734 | } | |
4735 | ||
4736 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4737 | if (!msg) { | |
4738 | err = -ENOMEM; | |
4739 | goto out; | |
4740 | } | |
4741 | ||
4742 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4743 | NL80211_CMD_ACTION); | |
4744 | ||
4745 | if (IS_ERR(hdr)) { | |
4746 | err = PTR_ERR(hdr); | |
4747 | goto free_msg; | |
4748 | } | |
4749 | err = cfg80211_mlme_action(rdev, dev, chan, channel_type, | |
252aa631 | 4750 | channel_type_valid, |
026331c4 JM |
4751 | nla_data(info->attrs[NL80211_ATTR_FRAME]), |
4752 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4753 | &cookie); | |
4754 | if (err) | |
4755 | goto free_msg; | |
4756 | ||
4757 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4758 | ||
4759 | genlmsg_end(msg, hdr); | |
4760 | err = genlmsg_reply(msg, info); | |
4761 | goto out; | |
4762 | ||
4763 | nla_put_failure: | |
4764 | err = -ENOBUFS; | |
4765 | free_msg: | |
4766 | nlmsg_free(msg); | |
4767 | out: | |
4768 | cfg80211_unlock_rdev(rdev); | |
4769 | dev_put(dev); | |
4770 | unlock_rtnl: | |
4771 | rtnl_unlock(); | |
4772 | return err; | |
4773 | } | |
4774 | ||
ffb9eb3d KV |
4775 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4776 | { | |
4777 | struct cfg80211_registered_device *rdev; | |
4778 | struct wireless_dev *wdev; | |
4779 | struct net_device *dev; | |
4780 | u8 ps_state; | |
4781 | bool state; | |
4782 | int err; | |
4783 | ||
4784 | if (!info->attrs[NL80211_ATTR_PS_STATE]) { | |
4785 | err = -EINVAL; | |
4786 | goto out; | |
4787 | } | |
4788 | ||
4789 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4790 | ||
4791 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) { | |
4792 | err = -EINVAL; | |
4793 | goto out; | |
4794 | } | |
4795 | ||
4796 | rtnl_lock(); | |
4797 | ||
4798 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4799 | if (err) | |
4800 | goto unlock_rdev; | |
4801 | ||
4802 | wdev = dev->ieee80211_ptr; | |
4803 | ||
4804 | if (!rdev->ops->set_power_mgmt) { | |
4805 | err = -EOPNOTSUPP; | |
4806 | goto unlock_rdev; | |
4807 | } | |
4808 | ||
4809 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4810 | ||
4811 | if (state == wdev->ps) | |
4812 | goto unlock_rdev; | |
4813 | ||
4814 | wdev->ps = state; | |
4815 | ||
4816 | if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps, | |
4817 | wdev->ps_timeout)) | |
4818 | /* assume this means it's off */ | |
4819 | wdev->ps = false; | |
4820 | ||
4821 | unlock_rdev: | |
4822 | cfg80211_unlock_rdev(rdev); | |
4823 | dev_put(dev); | |
4824 | rtnl_unlock(); | |
4825 | ||
4826 | out: | |
4827 | return err; | |
4828 | } | |
4829 | ||
4830 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4831 | { | |
4832 | struct cfg80211_registered_device *rdev; | |
4833 | enum nl80211_ps_state ps_state; | |
4834 | struct wireless_dev *wdev; | |
4835 | struct net_device *dev; | |
4836 | struct sk_buff *msg; | |
4837 | void *hdr; | |
4838 | int err; | |
4839 | ||
4840 | rtnl_lock(); | |
4841 | ||
4842 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4843 | if (err) | |
4844 | goto unlock_rtnl; | |
4845 | ||
4846 | wdev = dev->ieee80211_ptr; | |
4847 | ||
4848 | if (!rdev->ops->set_power_mgmt) { | |
4849 | err = -EOPNOTSUPP; | |
4850 | goto out; | |
4851 | } | |
4852 | ||
4853 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4854 | if (!msg) { | |
4855 | err = -ENOMEM; | |
4856 | goto out; | |
4857 | } | |
4858 | ||
4859 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4860 | NL80211_CMD_GET_POWER_SAVE); | |
4861 | if (!hdr) { | |
4862 | err = -ENOMEM; | |
4863 | goto free_msg; | |
4864 | } | |
4865 | ||
4866 | if (wdev->ps) | |
4867 | ps_state = NL80211_PS_ENABLED; | |
4868 | else | |
4869 | ps_state = NL80211_PS_DISABLED; | |
4870 | ||
4871 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4872 | ||
4873 | genlmsg_end(msg, hdr); | |
4874 | err = genlmsg_reply(msg, info); | |
4875 | goto out; | |
4876 | ||
4877 | nla_put_failure: | |
4878 | err = -ENOBUFS; | |
4879 | ||
4880 | free_msg: | |
4881 | nlmsg_free(msg); | |
4882 | ||
4883 | out: | |
4884 | cfg80211_unlock_rdev(rdev); | |
4885 | dev_put(dev); | |
4886 | ||
4887 | unlock_rtnl: | |
4888 | rtnl_unlock(); | |
4889 | ||
4890 | return err; | |
4891 | } | |
4892 | ||
d6dc1a38 JO |
4893 | static struct nla_policy |
4894 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
4895 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
4896 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
4897 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
4898 | }; | |
4899 | ||
4900 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
4901 | s32 threshold, u32 hysteresis) | |
4902 | { | |
4903 | struct cfg80211_registered_device *rdev; | |
4904 | struct wireless_dev *wdev; | |
4905 | struct net_device *dev; | |
4906 | int err; | |
4907 | ||
4908 | if (threshold > 0) | |
4909 | return -EINVAL; | |
4910 | ||
4911 | rtnl_lock(); | |
4912 | ||
4913 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4914 | if (err) | |
4915 | goto unlock_rdev; | |
4916 | ||
4917 | wdev = dev->ieee80211_ptr; | |
4918 | ||
4919 | if (!rdev->ops->set_cqm_rssi_config) { | |
4920 | err = -EOPNOTSUPP; | |
4921 | goto unlock_rdev; | |
4922 | } | |
4923 | ||
4924 | if (wdev->iftype != NL80211_IFTYPE_STATION) { | |
4925 | err = -EOPNOTSUPP; | |
4926 | goto unlock_rdev; | |
4927 | } | |
4928 | ||
4929 | err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, | |
4930 | threshold, hysteresis); | |
4931 | ||
4932 | unlock_rdev: | |
4933 | cfg80211_unlock_rdev(rdev); | |
4934 | dev_put(dev); | |
4935 | rtnl_unlock(); | |
4936 | ||
4937 | return err; | |
4938 | } | |
4939 | ||
4940 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
4941 | { | |
4942 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
4943 | struct nlattr *cqm; | |
4944 | int err; | |
4945 | ||
4946 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
4947 | if (!cqm) { | |
4948 | err = -EINVAL; | |
4949 | goto out; | |
4950 | } | |
4951 | ||
4952 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
4953 | nl80211_attr_cqm_policy); | |
4954 | if (err) | |
4955 | goto out; | |
4956 | ||
4957 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
4958 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
4959 | s32 threshold; | |
4960 | u32 hysteresis; | |
4961 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
4962 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
4963 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
4964 | } else | |
4965 | err = -EINVAL; | |
4966 | ||
4967 | out: | |
4968 | return err; | |
4969 | } | |
4970 | ||
55682965 JB |
4971 | static struct genl_ops nl80211_ops[] = { |
4972 | { | |
4973 | .cmd = NL80211_CMD_GET_WIPHY, | |
4974 | .doit = nl80211_get_wiphy, | |
4975 | .dumpit = nl80211_dump_wiphy, | |
4976 | .policy = nl80211_policy, | |
4977 | /* can be retrieved by unprivileged users */ | |
4978 | }, | |
4979 | { | |
4980 | .cmd = NL80211_CMD_SET_WIPHY, | |
4981 | .doit = nl80211_set_wiphy, | |
4982 | .policy = nl80211_policy, | |
4983 | .flags = GENL_ADMIN_PERM, | |
4984 | }, | |
4985 | { | |
4986 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4987 | .doit = nl80211_get_interface, | |
4988 | .dumpit = nl80211_dump_interface, | |
4989 | .policy = nl80211_policy, | |
4990 | /* can be retrieved by unprivileged users */ | |
4991 | }, | |
4992 | { | |
4993 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4994 | .doit = nl80211_set_interface, | |
4995 | .policy = nl80211_policy, | |
4996 | .flags = GENL_ADMIN_PERM, | |
4997 | }, | |
4998 | { | |
4999 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
5000 | .doit = nl80211_new_interface, | |
5001 | .policy = nl80211_policy, | |
5002 | .flags = GENL_ADMIN_PERM, | |
5003 | }, | |
5004 | { | |
5005 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
5006 | .doit = nl80211_del_interface, | |
5007 | .policy = nl80211_policy, | |
41ade00f JB |
5008 | .flags = GENL_ADMIN_PERM, |
5009 | }, | |
5010 | { | |
5011 | .cmd = NL80211_CMD_GET_KEY, | |
5012 | .doit = nl80211_get_key, | |
5013 | .policy = nl80211_policy, | |
5014 | .flags = GENL_ADMIN_PERM, | |
5015 | }, | |
5016 | { | |
5017 | .cmd = NL80211_CMD_SET_KEY, | |
5018 | .doit = nl80211_set_key, | |
5019 | .policy = nl80211_policy, | |
5020 | .flags = GENL_ADMIN_PERM, | |
5021 | }, | |
5022 | { | |
5023 | .cmd = NL80211_CMD_NEW_KEY, | |
5024 | .doit = nl80211_new_key, | |
5025 | .policy = nl80211_policy, | |
5026 | .flags = GENL_ADMIN_PERM, | |
5027 | }, | |
5028 | { | |
5029 | .cmd = NL80211_CMD_DEL_KEY, | |
5030 | .doit = nl80211_del_key, | |
5031 | .policy = nl80211_policy, | |
55682965 JB |
5032 | .flags = GENL_ADMIN_PERM, |
5033 | }, | |
ed1b6cc7 JB |
5034 | { |
5035 | .cmd = NL80211_CMD_SET_BEACON, | |
5036 | .policy = nl80211_policy, | |
5037 | .flags = GENL_ADMIN_PERM, | |
5038 | .doit = nl80211_addset_beacon, | |
5039 | }, | |
5040 | { | |
5041 | .cmd = NL80211_CMD_NEW_BEACON, | |
5042 | .policy = nl80211_policy, | |
5043 | .flags = GENL_ADMIN_PERM, | |
5044 | .doit = nl80211_addset_beacon, | |
5045 | }, | |
5046 | { | |
5047 | .cmd = NL80211_CMD_DEL_BEACON, | |
5048 | .policy = nl80211_policy, | |
5049 | .flags = GENL_ADMIN_PERM, | |
5050 | .doit = nl80211_del_beacon, | |
5051 | }, | |
5727ef1b JB |
5052 | { |
5053 | .cmd = NL80211_CMD_GET_STATION, | |
5054 | .doit = nl80211_get_station, | |
2ec600d6 | 5055 | .dumpit = nl80211_dump_station, |
5727ef1b | 5056 | .policy = nl80211_policy, |
5727ef1b JB |
5057 | }, |
5058 | { | |
5059 | .cmd = NL80211_CMD_SET_STATION, | |
5060 | .doit = nl80211_set_station, | |
5061 | .policy = nl80211_policy, | |
5062 | .flags = GENL_ADMIN_PERM, | |
5063 | }, | |
5064 | { | |
5065 | .cmd = NL80211_CMD_NEW_STATION, | |
5066 | .doit = nl80211_new_station, | |
5067 | .policy = nl80211_policy, | |
5068 | .flags = GENL_ADMIN_PERM, | |
5069 | }, | |
5070 | { | |
5071 | .cmd = NL80211_CMD_DEL_STATION, | |
5072 | .doit = nl80211_del_station, | |
5073 | .policy = nl80211_policy, | |
2ec600d6 LCC |
5074 | .flags = GENL_ADMIN_PERM, |
5075 | }, | |
5076 | { | |
5077 | .cmd = NL80211_CMD_GET_MPATH, | |
5078 | .doit = nl80211_get_mpath, | |
5079 | .dumpit = nl80211_dump_mpath, | |
5080 | .policy = nl80211_policy, | |
5081 | .flags = GENL_ADMIN_PERM, | |
5082 | }, | |
5083 | { | |
5084 | .cmd = NL80211_CMD_SET_MPATH, | |
5085 | .doit = nl80211_set_mpath, | |
5086 | .policy = nl80211_policy, | |
5087 | .flags = GENL_ADMIN_PERM, | |
5088 | }, | |
5089 | { | |
5090 | .cmd = NL80211_CMD_NEW_MPATH, | |
5091 | .doit = nl80211_new_mpath, | |
5092 | .policy = nl80211_policy, | |
5093 | .flags = GENL_ADMIN_PERM, | |
5094 | }, | |
5095 | { | |
5096 | .cmd = NL80211_CMD_DEL_MPATH, | |
5097 | .doit = nl80211_del_mpath, | |
5098 | .policy = nl80211_policy, | |
9f1ba906 JM |
5099 | .flags = GENL_ADMIN_PERM, |
5100 | }, | |
5101 | { | |
5102 | .cmd = NL80211_CMD_SET_BSS, | |
5103 | .doit = nl80211_set_bss, | |
5104 | .policy = nl80211_policy, | |
b2e1b302 LR |
5105 | .flags = GENL_ADMIN_PERM, |
5106 | }, | |
f130347c LR |
5107 | { |
5108 | .cmd = NL80211_CMD_GET_REG, | |
5109 | .doit = nl80211_get_reg, | |
5110 | .policy = nl80211_policy, | |
5111 | /* can be retrieved by unprivileged users */ | |
5112 | }, | |
b2e1b302 LR |
5113 | { |
5114 | .cmd = NL80211_CMD_SET_REG, | |
5115 | .doit = nl80211_set_reg, | |
5116 | .policy = nl80211_policy, | |
5117 | .flags = GENL_ADMIN_PERM, | |
5118 | }, | |
5119 | { | |
5120 | .cmd = NL80211_CMD_REQ_SET_REG, | |
5121 | .doit = nl80211_req_set_reg, | |
5122 | .policy = nl80211_policy, | |
93da9cc1 | 5123 | .flags = GENL_ADMIN_PERM, |
5124 | }, | |
5125 | { | |
5126 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
5127 | .doit = nl80211_get_mesh_params, | |
5128 | .policy = nl80211_policy, | |
5129 | /* can be retrieved by unprivileged users */ | |
5130 | }, | |
5131 | { | |
5132 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
5133 | .doit = nl80211_set_mesh_params, | |
5134 | .policy = nl80211_policy, | |
9aed3cc1 JM |
5135 | .flags = GENL_ADMIN_PERM, |
5136 | }, | |
2a519311 JB |
5137 | { |
5138 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
5139 | .doit = nl80211_trigger_scan, | |
5140 | .policy = nl80211_policy, | |
5141 | .flags = GENL_ADMIN_PERM, | |
5142 | }, | |
5143 | { | |
5144 | .cmd = NL80211_CMD_GET_SCAN, | |
5145 | .policy = nl80211_policy, | |
5146 | .dumpit = nl80211_dump_scan, | |
5147 | }, | |
636a5d36 JM |
5148 | { |
5149 | .cmd = NL80211_CMD_AUTHENTICATE, | |
5150 | .doit = nl80211_authenticate, | |
5151 | .policy = nl80211_policy, | |
5152 | .flags = GENL_ADMIN_PERM, | |
5153 | }, | |
5154 | { | |
5155 | .cmd = NL80211_CMD_ASSOCIATE, | |
5156 | .doit = nl80211_associate, | |
5157 | .policy = nl80211_policy, | |
5158 | .flags = GENL_ADMIN_PERM, | |
5159 | }, | |
5160 | { | |
5161 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
5162 | .doit = nl80211_deauthenticate, | |
5163 | .policy = nl80211_policy, | |
5164 | .flags = GENL_ADMIN_PERM, | |
5165 | }, | |
5166 | { | |
5167 | .cmd = NL80211_CMD_DISASSOCIATE, | |
5168 | .doit = nl80211_disassociate, | |
5169 | .policy = nl80211_policy, | |
5170 | .flags = GENL_ADMIN_PERM, | |
5171 | }, | |
04a773ad JB |
5172 | { |
5173 | .cmd = NL80211_CMD_JOIN_IBSS, | |
5174 | .doit = nl80211_join_ibss, | |
5175 | .policy = nl80211_policy, | |
5176 | .flags = GENL_ADMIN_PERM, | |
5177 | }, | |
5178 | { | |
5179 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
5180 | .doit = nl80211_leave_ibss, | |
5181 | .policy = nl80211_policy, | |
5182 | .flags = GENL_ADMIN_PERM, | |
5183 | }, | |
aff89a9b JB |
5184 | #ifdef CONFIG_NL80211_TESTMODE |
5185 | { | |
5186 | .cmd = NL80211_CMD_TESTMODE, | |
5187 | .doit = nl80211_testmode_do, | |
5188 | .policy = nl80211_policy, | |
5189 | .flags = GENL_ADMIN_PERM, | |
5190 | }, | |
5191 | #endif | |
b23aa676 SO |
5192 | { |
5193 | .cmd = NL80211_CMD_CONNECT, | |
5194 | .doit = nl80211_connect, | |
5195 | .policy = nl80211_policy, | |
5196 | .flags = GENL_ADMIN_PERM, | |
5197 | }, | |
5198 | { | |
5199 | .cmd = NL80211_CMD_DISCONNECT, | |
5200 | .doit = nl80211_disconnect, | |
5201 | .policy = nl80211_policy, | |
5202 | .flags = GENL_ADMIN_PERM, | |
5203 | }, | |
463d0183 JB |
5204 | { |
5205 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
5206 | .doit = nl80211_wiphy_netns, | |
5207 | .policy = nl80211_policy, | |
5208 | .flags = GENL_ADMIN_PERM, | |
5209 | }, | |
61fa713c HS |
5210 | { |
5211 | .cmd = NL80211_CMD_GET_SURVEY, | |
5212 | .policy = nl80211_policy, | |
5213 | .dumpit = nl80211_dump_survey, | |
5214 | }, | |
67fbb16b SO |
5215 | { |
5216 | .cmd = NL80211_CMD_SET_PMKSA, | |
5217 | .doit = nl80211_setdel_pmksa, | |
5218 | .policy = nl80211_policy, | |
5219 | .flags = GENL_ADMIN_PERM, | |
5220 | }, | |
5221 | { | |
5222 | .cmd = NL80211_CMD_DEL_PMKSA, | |
5223 | .doit = nl80211_setdel_pmksa, | |
5224 | .policy = nl80211_policy, | |
5225 | .flags = GENL_ADMIN_PERM, | |
5226 | }, | |
5227 | { | |
5228 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
5229 | .doit = nl80211_flush_pmksa, | |
5230 | .policy = nl80211_policy, | |
5231 | .flags = GENL_ADMIN_PERM, | |
5232 | }, | |
9588bbd5 JM |
5233 | { |
5234 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
5235 | .doit = nl80211_remain_on_channel, | |
5236 | .policy = nl80211_policy, | |
5237 | .flags = GENL_ADMIN_PERM, | |
5238 | }, | |
5239 | { | |
5240 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5241 | .doit = nl80211_cancel_remain_on_channel, | |
5242 | .policy = nl80211_policy, | |
5243 | .flags = GENL_ADMIN_PERM, | |
5244 | }, | |
13ae75b1 JM |
5245 | { |
5246 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
5247 | .doit = nl80211_set_tx_bitrate_mask, | |
5248 | .policy = nl80211_policy, | |
5249 | .flags = GENL_ADMIN_PERM, | |
5250 | }, | |
026331c4 JM |
5251 | { |
5252 | .cmd = NL80211_CMD_REGISTER_ACTION, | |
5253 | .doit = nl80211_register_action, | |
5254 | .policy = nl80211_policy, | |
5255 | .flags = GENL_ADMIN_PERM, | |
5256 | }, | |
5257 | { | |
5258 | .cmd = NL80211_CMD_ACTION, | |
5259 | .doit = nl80211_action, | |
5260 | .policy = nl80211_policy, | |
5261 | .flags = GENL_ADMIN_PERM, | |
5262 | }, | |
ffb9eb3d KV |
5263 | { |
5264 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
5265 | .doit = nl80211_set_power_save, | |
5266 | .policy = nl80211_policy, | |
5267 | .flags = GENL_ADMIN_PERM, | |
5268 | }, | |
5269 | { | |
5270 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
5271 | .doit = nl80211_get_power_save, | |
5272 | .policy = nl80211_policy, | |
5273 | /* can be retrieved by unprivileged users */ | |
5274 | }, | |
d6dc1a38 JO |
5275 | { |
5276 | .cmd = NL80211_CMD_SET_CQM, | |
5277 | .doit = nl80211_set_cqm, | |
5278 | .policy = nl80211_policy, | |
5279 | .flags = GENL_ADMIN_PERM, | |
5280 | }, | |
f444de05 JB |
5281 | { |
5282 | .cmd = NL80211_CMD_SET_CHANNEL, | |
5283 | .doit = nl80211_set_channel, | |
5284 | .policy = nl80211_policy, | |
5285 | .flags = GENL_ADMIN_PERM, | |
5286 | }, | |
55682965 | 5287 | }; |
9588bbd5 | 5288 | |
6039f6d2 JM |
5289 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
5290 | .name = "mlme", | |
5291 | }; | |
55682965 JB |
5292 | |
5293 | /* multicast groups */ | |
5294 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
5295 | .name = "config", | |
5296 | }; | |
2a519311 JB |
5297 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
5298 | .name = "scan", | |
5299 | }; | |
73d54c9e LR |
5300 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
5301 | .name = "regulatory", | |
5302 | }; | |
55682965 JB |
5303 | |
5304 | /* notification functions */ | |
5305 | ||
5306 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
5307 | { | |
5308 | struct sk_buff *msg; | |
5309 | ||
fd2120ca | 5310 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
5311 | if (!msg) |
5312 | return; | |
5313 | ||
5314 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
5315 | nlmsg_free(msg); | |
5316 | return; | |
5317 | } | |
5318 | ||
463d0183 JB |
5319 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5320 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
5321 | } |
5322 | ||
362a415d JB |
5323 | static int nl80211_add_scan_req(struct sk_buff *msg, |
5324 | struct cfg80211_registered_device *rdev) | |
5325 | { | |
5326 | struct cfg80211_scan_request *req = rdev->scan_req; | |
5327 | struct nlattr *nest; | |
5328 | int i; | |
5329 | ||
667503dd JB |
5330 | ASSERT_RDEV_LOCK(rdev); |
5331 | ||
362a415d JB |
5332 | if (WARN_ON(!req)) |
5333 | return 0; | |
5334 | ||
5335 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
5336 | if (!nest) | |
5337 | goto nla_put_failure; | |
5338 | for (i = 0; i < req->n_ssids; i++) | |
5339 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
5340 | nla_nest_end(msg, nest); | |
5341 | ||
5342 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
5343 | if (!nest) | |
5344 | goto nla_put_failure; | |
5345 | for (i = 0; i < req->n_channels; i++) | |
5346 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
5347 | nla_nest_end(msg, nest); | |
5348 | ||
5349 | if (req->ie) | |
5350 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
5351 | ||
5352 | return 0; | |
5353 | nla_put_failure: | |
5354 | return -ENOBUFS; | |
5355 | } | |
5356 | ||
a538e2d5 JB |
5357 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
5358 | struct cfg80211_registered_device *rdev, | |
5359 | struct net_device *netdev, | |
5360 | u32 pid, u32 seq, int flags, | |
5361 | u32 cmd) | |
2a519311 JB |
5362 | { |
5363 | void *hdr; | |
5364 | ||
5365 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5366 | if (!hdr) | |
5367 | return -1; | |
5368 | ||
b5850a7a | 5369 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5370 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5371 | ||
362a415d JB |
5372 | /* ignore errors and send incomplete event anyway */ |
5373 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5374 | |
5375 | return genlmsg_end(msg, hdr); | |
5376 | ||
5377 | nla_put_failure: | |
5378 | genlmsg_cancel(msg, hdr); | |
5379 | return -EMSGSIZE; | |
5380 | } | |
5381 | ||
a538e2d5 JB |
5382 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5383 | struct net_device *netdev) | |
5384 | { | |
5385 | struct sk_buff *msg; | |
5386 | ||
5387 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5388 | if (!msg) | |
5389 | return; | |
5390 | ||
5391 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5392 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
5393 | nlmsg_free(msg); | |
5394 | return; | |
5395 | } | |
5396 | ||
463d0183 JB |
5397 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5398 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
5399 | } |
5400 | ||
2a519311 JB |
5401 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
5402 | struct net_device *netdev) | |
5403 | { | |
5404 | struct sk_buff *msg; | |
5405 | ||
fd2120ca | 5406 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5407 | if (!msg) |
5408 | return; | |
5409 | ||
a538e2d5 JB |
5410 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5411 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
5412 | nlmsg_free(msg); |
5413 | return; | |
5414 | } | |
5415 | ||
463d0183 JB |
5416 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5417 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5418 | } |
5419 | ||
5420 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5421 | struct net_device *netdev) | |
5422 | { | |
5423 | struct sk_buff *msg; | |
5424 | ||
fd2120ca | 5425 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5426 | if (!msg) |
5427 | return; | |
5428 | ||
a538e2d5 JB |
5429 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5430 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5431 | nlmsg_free(msg); |
5432 | return; | |
5433 | } | |
5434 | ||
463d0183 JB |
5435 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5436 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5437 | } |
5438 | ||
73d54c9e LR |
5439 | /* |
5440 | * This can happen on global regulatory changes or device specific settings | |
5441 | * based on custom world regulatory domains. | |
5442 | */ | |
5443 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5444 | { | |
5445 | struct sk_buff *msg; | |
5446 | void *hdr; | |
5447 | ||
fd2120ca | 5448 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5449 | if (!msg) |
5450 | return; | |
5451 | ||
5452 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5453 | if (!hdr) { | |
5454 | nlmsg_free(msg); | |
5455 | return; | |
5456 | } | |
5457 | ||
5458 | /* Userspace can always count this one always being set */ | |
5459 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5460 | ||
5461 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5462 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5463 | NL80211_REGDOM_TYPE_WORLD); | |
5464 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5465 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5466 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5467 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5468 | request->intersect) | |
5469 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5470 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5471 | else { | |
5472 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5473 | NL80211_REGDOM_TYPE_COUNTRY); | |
5474 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5475 | } | |
5476 | ||
5477 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5478 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5479 | ||
5480 | if (genlmsg_end(msg, hdr) < 0) { | |
5481 | nlmsg_free(msg); | |
5482 | return; | |
5483 | } | |
5484 | ||
bc43b28c | 5485 | rcu_read_lock(); |
463d0183 | 5486 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5487 | GFP_ATOMIC); |
5488 | rcu_read_unlock(); | |
73d54c9e LR |
5489 | |
5490 | return; | |
5491 | ||
5492 | nla_put_failure: | |
5493 | genlmsg_cancel(msg, hdr); | |
5494 | nlmsg_free(msg); | |
5495 | } | |
5496 | ||
6039f6d2 JM |
5497 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5498 | struct net_device *netdev, | |
5499 | const u8 *buf, size_t len, | |
e6d6e342 | 5500 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5501 | { |
5502 | struct sk_buff *msg; | |
5503 | void *hdr; | |
5504 | ||
e6d6e342 | 5505 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5506 | if (!msg) |
5507 | return; | |
5508 | ||
5509 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5510 | if (!hdr) { | |
5511 | nlmsg_free(msg); | |
5512 | return; | |
5513 | } | |
5514 | ||
5515 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5516 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5517 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5518 | ||
5519 | if (genlmsg_end(msg, hdr) < 0) { | |
5520 | nlmsg_free(msg); | |
5521 | return; | |
5522 | } | |
5523 | ||
463d0183 JB |
5524 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5525 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5526 | return; |
5527 | ||
5528 | nla_put_failure: | |
5529 | genlmsg_cancel(msg, hdr); | |
5530 | nlmsg_free(msg); | |
5531 | } | |
5532 | ||
5533 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5534 | struct net_device *netdev, const u8 *buf, |
5535 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5536 | { |
5537 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5538 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5539 | } |
5540 | ||
5541 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5542 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5543 | size_t len, gfp_t gfp) |
6039f6d2 | 5544 | { |
e6d6e342 JB |
5545 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5546 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5547 | } |
5548 | ||
53b46b84 | 5549 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5550 | struct net_device *netdev, const u8 *buf, |
5551 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5552 | { |
5553 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5554 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5555 | } |
5556 | ||
53b46b84 JM |
5557 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5558 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5559 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5560 | { |
5561 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5562 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5563 | } |
5564 | ||
1b06bb40 LR |
5565 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5566 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5567 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5568 | { |
5569 | struct sk_buff *msg; | |
5570 | void *hdr; | |
5571 | ||
e6d6e342 | 5572 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5573 | if (!msg) |
5574 | return; | |
5575 | ||
5576 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5577 | if (!hdr) { | |
5578 | nlmsg_free(msg); | |
5579 | return; | |
5580 | } | |
5581 | ||
5582 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5583 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5584 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5585 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5586 | ||
5587 | if (genlmsg_end(msg, hdr) < 0) { | |
5588 | nlmsg_free(msg); | |
5589 | return; | |
5590 | } | |
5591 | ||
463d0183 JB |
5592 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5593 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5594 | return; |
5595 | ||
5596 | nla_put_failure: | |
5597 | genlmsg_cancel(msg, hdr); | |
5598 | nlmsg_free(msg); | |
5599 | } | |
5600 | ||
5601 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5602 | struct net_device *netdev, const u8 *addr, |
5603 | gfp_t gfp) | |
1965c853 JM |
5604 | { |
5605 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5606 | addr, gfp); |
1965c853 JM |
5607 | } |
5608 | ||
5609 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5610 | struct net_device *netdev, const u8 *addr, |
5611 | gfp_t gfp) | |
1965c853 | 5612 | { |
e6d6e342 JB |
5613 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5614 | addr, gfp); | |
1965c853 JM |
5615 | } |
5616 | ||
b23aa676 SO |
5617 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5618 | struct net_device *netdev, const u8 *bssid, | |
5619 | const u8 *req_ie, size_t req_ie_len, | |
5620 | const u8 *resp_ie, size_t resp_ie_len, | |
5621 | u16 status, gfp_t gfp) | |
5622 | { | |
5623 | struct sk_buff *msg; | |
5624 | void *hdr; | |
5625 | ||
5626 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5627 | if (!msg) | |
5628 | return; | |
5629 | ||
5630 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5631 | if (!hdr) { | |
5632 | nlmsg_free(msg); | |
5633 | return; | |
5634 | } | |
5635 | ||
5636 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5637 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5638 | if (bssid) | |
5639 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5640 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5641 | if (req_ie) | |
5642 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5643 | if (resp_ie) | |
5644 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5645 | ||
5646 | if (genlmsg_end(msg, hdr) < 0) { | |
5647 | nlmsg_free(msg); | |
5648 | return; | |
5649 | } | |
5650 | ||
463d0183 JB |
5651 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5652 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5653 | return; |
5654 | ||
5655 | nla_put_failure: | |
5656 | genlmsg_cancel(msg, hdr); | |
5657 | nlmsg_free(msg); | |
5658 | ||
5659 | } | |
5660 | ||
5661 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5662 | struct net_device *netdev, const u8 *bssid, | |
5663 | const u8 *req_ie, size_t req_ie_len, | |
5664 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5665 | { | |
5666 | struct sk_buff *msg; | |
5667 | void *hdr; | |
5668 | ||
5669 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5670 | if (!msg) | |
5671 | return; | |
5672 | ||
5673 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5674 | if (!hdr) { | |
5675 | nlmsg_free(msg); | |
5676 | return; | |
5677 | } | |
5678 | ||
5679 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5680 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5681 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5682 | if (req_ie) | |
5683 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5684 | if (resp_ie) | |
5685 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5686 | ||
5687 | if (genlmsg_end(msg, hdr) < 0) { | |
5688 | nlmsg_free(msg); | |
5689 | return; | |
5690 | } | |
5691 | ||
463d0183 JB |
5692 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5693 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5694 | return; |
5695 | ||
5696 | nla_put_failure: | |
5697 | genlmsg_cancel(msg, hdr); | |
5698 | nlmsg_free(msg); | |
5699 | ||
5700 | } | |
5701 | ||
5702 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5703 | struct net_device *netdev, u16 reason, | |
667503dd | 5704 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5705 | { |
5706 | struct sk_buff *msg; | |
5707 | void *hdr; | |
5708 | ||
667503dd | 5709 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5710 | if (!msg) |
5711 | return; | |
5712 | ||
5713 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5714 | if (!hdr) { | |
5715 | nlmsg_free(msg); | |
5716 | return; | |
5717 | } | |
5718 | ||
5719 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5720 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5721 | if (from_ap && reason) | |
5722 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5723 | if (from_ap) | |
5724 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5725 | if (ie) | |
5726 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5727 | ||
5728 | if (genlmsg_end(msg, hdr) < 0) { | |
5729 | nlmsg_free(msg); | |
5730 | return; | |
5731 | } | |
5732 | ||
463d0183 JB |
5733 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5734 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5735 | return; |
5736 | ||
5737 | nla_put_failure: | |
5738 | genlmsg_cancel(msg, hdr); | |
5739 | nlmsg_free(msg); | |
5740 | ||
5741 | } | |
5742 | ||
04a773ad JB |
5743 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5744 | struct net_device *netdev, const u8 *bssid, | |
5745 | gfp_t gfp) | |
5746 | { | |
5747 | struct sk_buff *msg; | |
5748 | void *hdr; | |
5749 | ||
fd2120ca | 5750 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5751 | if (!msg) |
5752 | return; | |
5753 | ||
5754 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5755 | if (!hdr) { | |
5756 | nlmsg_free(msg); | |
5757 | return; | |
5758 | } | |
5759 | ||
5760 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5761 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5762 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5763 | ||
5764 | if (genlmsg_end(msg, hdr) < 0) { | |
5765 | nlmsg_free(msg); | |
5766 | return; | |
5767 | } | |
5768 | ||
463d0183 JB |
5769 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5770 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5771 | return; |
5772 | ||
5773 | nla_put_failure: | |
5774 | genlmsg_cancel(msg, hdr); | |
5775 | nlmsg_free(msg); | |
5776 | } | |
5777 | ||
a3b8b056 JM |
5778 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5779 | struct net_device *netdev, const u8 *addr, | |
5780 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5781 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5782 | { |
5783 | struct sk_buff *msg; | |
5784 | void *hdr; | |
5785 | ||
e6d6e342 | 5786 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5787 | if (!msg) |
5788 | return; | |
5789 | ||
5790 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5791 | if (!hdr) { | |
5792 | nlmsg_free(msg); | |
5793 | return; | |
5794 | } | |
5795 | ||
5796 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5797 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5798 | if (addr) | |
5799 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5800 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5801 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5802 | if (tsc) | |
5803 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5804 | ||
5805 | if (genlmsg_end(msg, hdr) < 0) { | |
5806 | nlmsg_free(msg); | |
5807 | return; | |
5808 | } | |
5809 | ||
463d0183 JB |
5810 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5811 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5812 | return; |
5813 | ||
5814 | nla_put_failure: | |
5815 | genlmsg_cancel(msg, hdr); | |
5816 | nlmsg_free(msg); | |
5817 | } | |
5818 | ||
6bad8766 LR |
5819 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5820 | struct ieee80211_channel *channel_before, | |
5821 | struct ieee80211_channel *channel_after) | |
5822 | { | |
5823 | struct sk_buff *msg; | |
5824 | void *hdr; | |
5825 | struct nlattr *nl_freq; | |
5826 | ||
fd2120ca | 5827 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5828 | if (!msg) |
5829 | return; | |
5830 | ||
5831 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5832 | if (!hdr) { | |
5833 | nlmsg_free(msg); | |
5834 | return; | |
5835 | } | |
5836 | ||
5837 | /* | |
5838 | * Since we are applying the beacon hint to a wiphy we know its | |
5839 | * wiphy_idx is valid | |
5840 | */ | |
5841 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5842 | ||
5843 | /* Before */ | |
5844 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5845 | if (!nl_freq) | |
5846 | goto nla_put_failure; | |
5847 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5848 | goto nla_put_failure; | |
5849 | nla_nest_end(msg, nl_freq); | |
5850 | ||
5851 | /* After */ | |
5852 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5853 | if (!nl_freq) | |
5854 | goto nla_put_failure; | |
5855 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5856 | goto nla_put_failure; | |
5857 | nla_nest_end(msg, nl_freq); | |
5858 | ||
5859 | if (genlmsg_end(msg, hdr) < 0) { | |
5860 | nlmsg_free(msg); | |
5861 | return; | |
5862 | } | |
5863 | ||
463d0183 JB |
5864 | rcu_read_lock(); |
5865 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5866 | GFP_ATOMIC); | |
5867 | rcu_read_unlock(); | |
6bad8766 LR |
5868 | |
5869 | return; | |
5870 | ||
5871 | nla_put_failure: | |
5872 | genlmsg_cancel(msg, hdr); | |
5873 | nlmsg_free(msg); | |
5874 | } | |
5875 | ||
9588bbd5 JM |
5876 | static void nl80211_send_remain_on_chan_event( |
5877 | int cmd, struct cfg80211_registered_device *rdev, | |
5878 | struct net_device *netdev, u64 cookie, | |
5879 | struct ieee80211_channel *chan, | |
5880 | enum nl80211_channel_type channel_type, | |
5881 | unsigned int duration, gfp_t gfp) | |
5882 | { | |
5883 | struct sk_buff *msg; | |
5884 | void *hdr; | |
5885 | ||
5886 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5887 | if (!msg) | |
5888 | return; | |
5889 | ||
5890 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5891 | if (!hdr) { | |
5892 | nlmsg_free(msg); | |
5893 | return; | |
5894 | } | |
5895 | ||
5896 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5897 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5898 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5899 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5900 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5901 | ||
5902 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5903 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5904 | ||
5905 | if (genlmsg_end(msg, hdr) < 0) { | |
5906 | nlmsg_free(msg); | |
5907 | return; | |
5908 | } | |
5909 | ||
5910 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5911 | nl80211_mlme_mcgrp.id, gfp); | |
5912 | return; | |
5913 | ||
5914 | nla_put_failure: | |
5915 | genlmsg_cancel(msg, hdr); | |
5916 | nlmsg_free(msg); | |
5917 | } | |
5918 | ||
5919 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5920 | struct net_device *netdev, u64 cookie, | |
5921 | struct ieee80211_channel *chan, | |
5922 | enum nl80211_channel_type channel_type, | |
5923 | unsigned int duration, gfp_t gfp) | |
5924 | { | |
5925 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5926 | rdev, netdev, cookie, chan, | |
5927 | channel_type, duration, gfp); | |
5928 | } | |
5929 | ||
5930 | void nl80211_send_remain_on_channel_cancel( | |
5931 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5932 | u64 cookie, struct ieee80211_channel *chan, | |
5933 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5934 | { | |
5935 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5936 | rdev, netdev, cookie, chan, | |
5937 | channel_type, 0, gfp); | |
5938 | } | |
5939 | ||
98b62183 JB |
5940 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5941 | struct net_device *dev, const u8 *mac_addr, | |
5942 | struct station_info *sinfo, gfp_t gfp) | |
5943 | { | |
5944 | struct sk_buff *msg; | |
5945 | ||
5946 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5947 | if (!msg) | |
5948 | return; | |
5949 | ||
5950 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5951 | nlmsg_free(msg); | |
5952 | return; | |
5953 | } | |
5954 | ||
5955 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5956 | nl80211_mlme_mcgrp.id, gfp); | |
5957 | } | |
5958 | ||
026331c4 JM |
5959 | int nl80211_send_action(struct cfg80211_registered_device *rdev, |
5960 | struct net_device *netdev, u32 nlpid, | |
5961 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
5962 | { | |
5963 | struct sk_buff *msg; | |
5964 | void *hdr; | |
5965 | int err; | |
5966 | ||
5967 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5968 | if (!msg) | |
5969 | return -ENOMEM; | |
5970 | ||
5971 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION); | |
5972 | if (!hdr) { | |
5973 | nlmsg_free(msg); | |
5974 | return -ENOMEM; | |
5975 | } | |
5976 | ||
5977 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5978 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5979 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5980 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5981 | ||
5982 | err = genlmsg_end(msg, hdr); | |
5983 | if (err < 0) { | |
5984 | nlmsg_free(msg); | |
5985 | return err; | |
5986 | } | |
5987 | ||
5988 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5989 | if (err < 0) | |
5990 | return err; | |
5991 | return 0; | |
5992 | ||
5993 | nla_put_failure: | |
5994 | genlmsg_cancel(msg, hdr); | |
5995 | nlmsg_free(msg); | |
5996 | return -ENOBUFS; | |
5997 | } | |
5998 | ||
5999 | void nl80211_send_action_tx_status(struct cfg80211_registered_device *rdev, | |
6000 | struct net_device *netdev, u64 cookie, | |
6001 | const u8 *buf, size_t len, bool ack, | |
6002 | gfp_t gfp) | |
6003 | { | |
6004 | struct sk_buff *msg; | |
6005 | void *hdr; | |
6006 | ||
6007 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6008 | if (!msg) | |
6009 | return; | |
6010 | ||
6011 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ACTION_TX_STATUS); | |
6012 | if (!hdr) { | |
6013 | nlmsg_free(msg); | |
6014 | return; | |
6015 | } | |
6016 | ||
6017 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6018 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6019 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
6020 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6021 | if (ack) | |
6022 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
6023 | ||
6024 | if (genlmsg_end(msg, hdr) < 0) { | |
6025 | nlmsg_free(msg); | |
6026 | return; | |
6027 | } | |
6028 | ||
6029 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
6030 | return; | |
6031 | ||
6032 | nla_put_failure: | |
6033 | genlmsg_cancel(msg, hdr); | |
6034 | nlmsg_free(msg); | |
6035 | } | |
6036 | ||
d6dc1a38 JO |
6037 | void |
6038 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
6039 | struct net_device *netdev, | |
6040 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
6041 | gfp_t gfp) | |
6042 | { | |
6043 | struct sk_buff *msg; | |
6044 | struct nlattr *pinfoattr; | |
6045 | void *hdr; | |
6046 | ||
6047 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
6048 | if (!msg) | |
6049 | return; | |
6050 | ||
6051 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
6052 | if (!hdr) { | |
6053 | nlmsg_free(msg); | |
6054 | return; | |
6055 | } | |
6056 | ||
6057 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6058 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6059 | ||
6060 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
6061 | if (!pinfoattr) | |
6062 | goto nla_put_failure; | |
6063 | ||
6064 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
6065 | rssi_event); | |
6066 | ||
6067 | nla_nest_end(msg, pinfoattr); | |
6068 | ||
6069 | if (genlmsg_end(msg, hdr) < 0) { | |
6070 | nlmsg_free(msg); | |
6071 | return; | |
6072 | } | |
6073 | ||
6074 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6075 | nl80211_mlme_mcgrp.id, gfp); | |
6076 | return; | |
6077 | ||
6078 | nla_put_failure: | |
6079 | genlmsg_cancel(msg, hdr); | |
6080 | nlmsg_free(msg); | |
6081 | } | |
6082 | ||
026331c4 JM |
6083 | static int nl80211_netlink_notify(struct notifier_block * nb, |
6084 | unsigned long state, | |
6085 | void *_notify) | |
6086 | { | |
6087 | struct netlink_notify *notify = _notify; | |
6088 | struct cfg80211_registered_device *rdev; | |
6089 | struct wireless_dev *wdev; | |
6090 | ||
6091 | if (state != NETLINK_URELEASE) | |
6092 | return NOTIFY_DONE; | |
6093 | ||
6094 | rcu_read_lock(); | |
6095 | ||
6096 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
6097 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
6098 | cfg80211_mlme_unregister_actions(wdev, notify->pid); | |
6099 | ||
6100 | rcu_read_unlock(); | |
6101 | ||
6102 | return NOTIFY_DONE; | |
6103 | } | |
6104 | ||
6105 | static struct notifier_block nl80211_netlink_notifier = { | |
6106 | .notifier_call = nl80211_netlink_notify, | |
6107 | }; | |
6108 | ||
55682965 JB |
6109 | /* initialisation/exit functions */ |
6110 | ||
6111 | int nl80211_init(void) | |
6112 | { | |
0d63cbb5 | 6113 | int err; |
55682965 | 6114 | |
0d63cbb5 MM |
6115 | err = genl_register_family_with_ops(&nl80211_fam, |
6116 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
6117 | if (err) |
6118 | return err; | |
6119 | ||
55682965 JB |
6120 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
6121 | if (err) | |
6122 | goto err_out; | |
6123 | ||
2a519311 JB |
6124 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
6125 | if (err) | |
6126 | goto err_out; | |
6127 | ||
73d54c9e LR |
6128 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
6129 | if (err) | |
6130 | goto err_out; | |
6131 | ||
6039f6d2 JM |
6132 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
6133 | if (err) | |
6134 | goto err_out; | |
6135 | ||
aff89a9b JB |
6136 | #ifdef CONFIG_NL80211_TESTMODE |
6137 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
6138 | if (err) | |
6139 | goto err_out; | |
6140 | #endif | |
6141 | ||
026331c4 JM |
6142 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
6143 | if (err) | |
6144 | goto err_out; | |
6145 | ||
55682965 JB |
6146 | return 0; |
6147 | err_out: | |
6148 | genl_unregister_family(&nl80211_fam); | |
6149 | return err; | |
6150 | } | |
6151 | ||
6152 | void nl80211_exit(void) | |
6153 | { | |
026331c4 | 6154 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
6155 | genl_unregister_family(&nl80211_fam); |
6156 | } |