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Commit | Line | Data |
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55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 JB |
25 | |
26 | /* the netlink family */ | |
27 | static struct genl_family nl80211_fam = { | |
28 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
29 | .name = "nl80211", /* have users key off the name instead */ | |
30 | .hdrsize = 0, /* no private header */ | |
31 | .version = 1, /* no particular meaning now */ | |
32 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 33 | .netnsok = true, |
55682965 JB |
34 | }; |
35 | ||
79c97e97 | 36 | /* internal helper: get rdev and dev */ |
463d0183 | 37 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 38 | struct cfg80211_registered_device **rdev, |
55682965 JB |
39 | struct net_device **dev) |
40 | { | |
463d0183 | 41 | struct nlattr **attrs = info->attrs; |
55682965 JB |
42 | int ifindex; |
43 | ||
bba95fef | 44 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
45 | return -EINVAL; |
46 | ||
bba95fef | 47 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 48 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
49 | if (!*dev) |
50 | return -ENODEV; | |
51 | ||
463d0183 | 52 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 53 | if (IS_ERR(*rdev)) { |
55682965 | 54 | dev_put(*dev); |
79c97e97 | 55 | return PTR_ERR(*rdev); |
55682965 JB |
56 | } |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | /* policy for the attributes */ | |
b54452b0 | 62 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
63 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
64 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 65 | .len = 20-1 }, |
31888487 | 66 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 67 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 68 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
69 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
70 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
71 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
72 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 73 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
74 | |
75 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
76 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
77 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
78 | |
79 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 80 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 81 | |
b9454e83 | 82 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
83 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
84 | .len = WLAN_MAX_KEY_LEN }, | |
85 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
86 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
87 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 88 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
89 | |
90 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
91 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
92 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
93 | .len = IEEE80211_MAX_DATA_LEN }, | |
94 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
95 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
96 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
97 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
98 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
99 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
100 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 101 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 102 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 103 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
104 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
105 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
106 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 107 | |
b2e1b302 LR |
108 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
109 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
110 | ||
9f1ba906 JM |
111 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
112 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
113 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
114 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
115 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 116 | |
93da9cc1 | 117 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
118 | ||
36aedc90 JM |
119 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
120 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
121 | |
122 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
123 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
124 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
125 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
126 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
127 | |
128 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
129 | .len = IEEE80211_MAX_SSID_LEN }, | |
130 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
131 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 132 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 133 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 134 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
135 | [NL80211_ATTR_STA_FLAGS2] = { |
136 | .len = sizeof(struct nl80211_sta_flag_update), | |
137 | }, | |
3f77316c | 138 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
b23aa676 SO |
139 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
140 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
141 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 142 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 143 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
144 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
145 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
146 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
147 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 148 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
149 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
150 | .len = IEEE80211_MAX_DATA_LEN }, | |
151 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 152 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
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 }, |
98d2ff8b JO |
156 | |
157 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
158 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 159 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
55682965 JB |
160 | }; |
161 | ||
b9454e83 | 162 | /* policy for the attributes */ |
b54452b0 | 163 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 164 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
165 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
166 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
167 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
168 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
169 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
170 | }; | |
171 | ||
a043897a HS |
172 | /* ifidx get helper */ |
173 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
174 | { | |
175 | int res; | |
176 | ||
177 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
178 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
179 | nl80211_policy); | |
180 | if (res) | |
181 | return res; | |
182 | ||
183 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
184 | return -EINVAL; | |
185 | ||
186 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
187 | if (!res) | |
188 | return -EINVAL; | |
189 | return res; | |
190 | } | |
191 | ||
f4a11bb0 JB |
192 | /* IE validation */ |
193 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
194 | { | |
195 | const u8 *pos; | |
196 | int len; | |
197 | ||
198 | if (!attr) | |
199 | return true; | |
200 | ||
201 | pos = nla_data(attr); | |
202 | len = nla_len(attr); | |
203 | ||
204 | while (len) { | |
205 | u8 elemlen; | |
206 | ||
207 | if (len < 2) | |
208 | return false; | |
209 | len -= 2; | |
210 | ||
211 | elemlen = pos[1]; | |
212 | if (elemlen > len) | |
213 | return false; | |
214 | ||
215 | len -= elemlen; | |
216 | pos += 2 + elemlen; | |
217 | } | |
218 | ||
219 | return true; | |
220 | } | |
221 | ||
55682965 JB |
222 | /* message building helper */ |
223 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
224 | int flags, u8 cmd) | |
225 | { | |
226 | /* since there is no private header just add the generic one */ | |
227 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
228 | } | |
229 | ||
5dab3b8a LR |
230 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
231 | struct ieee80211_channel *chan) | |
232 | { | |
233 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
234 | chan->center_freq); | |
235 | ||
236 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
237 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
238 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
239 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
240 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
241 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
242 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
243 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
244 | ||
245 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
246 | DBM_TO_MBM(chan->max_power)); | |
247 | ||
248 | return 0; | |
249 | ||
250 | nla_put_failure: | |
251 | return -ENOBUFS; | |
252 | } | |
253 | ||
55682965 JB |
254 | /* netlink command implementations */ |
255 | ||
b9454e83 JB |
256 | struct key_parse { |
257 | struct key_params p; | |
258 | int idx; | |
259 | bool def, defmgmt; | |
260 | }; | |
261 | ||
262 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
263 | { | |
264 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
265 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
266 | nl80211_key_policy); | |
267 | if (err) | |
268 | return err; | |
269 | ||
270 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
271 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
272 | ||
273 | if (tb[NL80211_KEY_IDX]) | |
274 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
275 | ||
276 | if (tb[NL80211_KEY_DATA]) { | |
277 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
278 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
279 | } | |
280 | ||
281 | if (tb[NL80211_KEY_SEQ]) { | |
282 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
283 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
284 | } | |
285 | ||
286 | if (tb[NL80211_KEY_CIPHER]) | |
287 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
292 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
293 | { | |
294 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
295 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
296 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
297 | } | |
298 | ||
299 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
300 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
301 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
302 | } | |
303 | ||
304 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
305 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
306 | ||
307 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
308 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
309 | ||
310 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
311 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
317 | { | |
318 | int err; | |
319 | ||
320 | memset(k, 0, sizeof(*k)); | |
321 | k->idx = -1; | |
322 | ||
323 | if (info->attrs[NL80211_ATTR_KEY]) | |
324 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
325 | else | |
326 | err = nl80211_parse_key_old(info, k); | |
327 | ||
328 | if (err) | |
329 | return err; | |
330 | ||
331 | if (k->def && k->defmgmt) | |
332 | return -EINVAL; | |
333 | ||
334 | if (k->idx != -1) { | |
335 | if (k->defmgmt) { | |
336 | if (k->idx < 4 || k->idx > 5) | |
337 | return -EINVAL; | |
338 | } else if (k->def) { | |
339 | if (k->idx < 0 || k->idx > 3) | |
340 | return -EINVAL; | |
341 | } else { | |
342 | if (k->idx < 0 || k->idx > 5) | |
343 | return -EINVAL; | |
344 | } | |
345 | } | |
346 | ||
347 | return 0; | |
348 | } | |
349 | ||
fffd0934 JB |
350 | static struct cfg80211_cached_keys * |
351 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
352 | struct nlattr *keys) | |
353 | { | |
354 | struct key_parse parse; | |
355 | struct nlattr *key; | |
356 | struct cfg80211_cached_keys *result; | |
357 | int rem, err, def = 0; | |
358 | ||
359 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
360 | if (!result) | |
361 | return ERR_PTR(-ENOMEM); | |
362 | ||
363 | result->def = -1; | |
364 | result->defmgmt = -1; | |
365 | ||
366 | nla_for_each_nested(key, keys, rem) { | |
367 | memset(&parse, 0, sizeof(parse)); | |
368 | parse.idx = -1; | |
369 | ||
370 | err = nl80211_parse_key_new(key, &parse); | |
371 | if (err) | |
372 | goto error; | |
373 | err = -EINVAL; | |
374 | if (!parse.p.key) | |
375 | goto error; | |
376 | if (parse.idx < 0 || parse.idx > 4) | |
377 | goto error; | |
378 | if (parse.def) { | |
379 | if (def) | |
380 | goto error; | |
381 | def = 1; | |
382 | result->def = parse.idx; | |
383 | } else if (parse.defmgmt) | |
384 | goto error; | |
385 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
386 | parse.idx, NULL); | |
387 | if (err) | |
388 | goto error; | |
389 | result->params[parse.idx].cipher = parse.p.cipher; | |
390 | result->params[parse.idx].key_len = parse.p.key_len; | |
391 | result->params[parse.idx].key = result->data[parse.idx]; | |
392 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
393 | } | |
394 | ||
395 | return result; | |
396 | error: | |
397 | kfree(result); | |
398 | return ERR_PTR(err); | |
399 | } | |
400 | ||
401 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
402 | { | |
403 | ASSERT_WDEV_LOCK(wdev); | |
404 | ||
405 | if (!netif_running(wdev->netdev)) | |
406 | return -ENETDOWN; | |
407 | ||
408 | switch (wdev->iftype) { | |
409 | case NL80211_IFTYPE_AP: | |
410 | case NL80211_IFTYPE_AP_VLAN: | |
411 | break; | |
412 | case NL80211_IFTYPE_ADHOC: | |
413 | if (!wdev->current_bss) | |
414 | return -ENOLINK; | |
415 | break; | |
416 | case NL80211_IFTYPE_STATION: | |
417 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
418 | return -ENOLINK; | |
419 | break; | |
420 | default: | |
421 | return -EINVAL; | |
422 | } | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
55682965 JB |
427 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
428 | struct cfg80211_registered_device *dev) | |
429 | { | |
430 | void *hdr; | |
ee688b00 JB |
431 | struct nlattr *nl_bands, *nl_band; |
432 | struct nlattr *nl_freqs, *nl_freq; | |
433 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 434 | struct nlattr *nl_modes; |
8fdc621d | 435 | struct nlattr *nl_cmds; |
ee688b00 JB |
436 | enum ieee80211_band band; |
437 | struct ieee80211_channel *chan; | |
438 | struct ieee80211_rate *rate; | |
439 | int i; | |
f59ac048 | 440 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
441 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
442 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
443 | |
444 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
445 | if (!hdr) | |
446 | return -1; | |
447 | ||
b5850a7a | 448 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 449 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 450 | |
f5ea9120 JB |
451 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
452 | cfg80211_rdev_list_generation); | |
453 | ||
b9a5f8ca JM |
454 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
455 | dev->wiphy.retry_short); | |
456 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
457 | dev->wiphy.retry_long); | |
458 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
459 | dev->wiphy.frag_threshold); | |
460 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
461 | dev->wiphy.rts_threshold); | |
81077e82 LT |
462 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
463 | dev->wiphy.coverage_class); | |
b9a5f8ca | 464 | |
2a519311 JB |
465 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
466 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
467 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
468 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 469 | |
25e47c18 JB |
470 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
471 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
472 | dev->wiphy.cipher_suites); | |
473 | ||
67fbb16b SO |
474 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
475 | dev->wiphy.max_num_pmkids); | |
476 | ||
f59ac048 LR |
477 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
478 | if (!nl_modes) | |
479 | goto nla_put_failure; | |
480 | ||
481 | i = 0; | |
482 | while (ifmodes) { | |
483 | if (ifmodes & 1) | |
484 | NLA_PUT_FLAG(msg, i); | |
485 | ifmodes >>= 1; | |
486 | i++; | |
487 | } | |
488 | ||
489 | nla_nest_end(msg, nl_modes); | |
490 | ||
ee688b00 JB |
491 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
492 | if (!nl_bands) | |
493 | goto nla_put_failure; | |
494 | ||
495 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
496 | if (!dev->wiphy.bands[band]) | |
497 | continue; | |
498 | ||
499 | nl_band = nla_nest_start(msg, band); | |
500 | if (!nl_band) | |
501 | goto nla_put_failure; | |
502 | ||
d51626df JB |
503 | /* add HT info */ |
504 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
505 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
506 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
507 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
508 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
509 | dev->wiphy.bands[band]->ht_cap.cap); | |
510 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
511 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
512 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
513 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
514 | } | |
515 | ||
ee688b00 JB |
516 | /* add frequencies */ |
517 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
518 | if (!nl_freqs) | |
519 | goto nla_put_failure; | |
520 | ||
521 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
522 | nl_freq = nla_nest_start(msg, i); | |
523 | if (!nl_freq) | |
524 | goto nla_put_failure; | |
525 | ||
526 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
527 | |
528 | if (nl80211_msg_put_channel(msg, chan)) | |
529 | goto nla_put_failure; | |
e2f367f2 | 530 | |
ee688b00 JB |
531 | nla_nest_end(msg, nl_freq); |
532 | } | |
533 | ||
534 | nla_nest_end(msg, nl_freqs); | |
535 | ||
536 | /* add bitrates */ | |
537 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
538 | if (!nl_rates) | |
539 | goto nla_put_failure; | |
540 | ||
541 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
542 | nl_rate = nla_nest_start(msg, i); | |
543 | if (!nl_rate) | |
544 | goto nla_put_failure; | |
545 | ||
546 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
547 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
548 | rate->bitrate); | |
549 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
550 | NLA_PUT_FLAG(msg, | |
551 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
552 | ||
553 | nla_nest_end(msg, nl_rate); | |
554 | } | |
555 | ||
556 | nla_nest_end(msg, nl_rates); | |
557 | ||
558 | nla_nest_end(msg, nl_band); | |
559 | } | |
560 | nla_nest_end(msg, nl_bands); | |
561 | ||
8fdc621d JB |
562 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
563 | if (!nl_cmds) | |
564 | goto nla_put_failure; | |
565 | ||
566 | i = 0; | |
567 | #define CMD(op, n) \ | |
568 | do { \ | |
569 | if (dev->ops->op) { \ | |
570 | i++; \ | |
571 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
572 | } \ | |
573 | } while (0) | |
574 | ||
575 | CMD(add_virtual_intf, NEW_INTERFACE); | |
576 | CMD(change_virtual_intf, SET_INTERFACE); | |
577 | CMD(add_key, NEW_KEY); | |
578 | CMD(add_beacon, NEW_BEACON); | |
579 | CMD(add_station, NEW_STATION); | |
580 | CMD(add_mpath, NEW_MPATH); | |
581 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
582 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
583 | CMD(auth, AUTHENTICATE); |
584 | CMD(assoc, ASSOCIATE); | |
585 | CMD(deauth, DEAUTHENTICATE); | |
586 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 587 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
588 | CMD(set_pmksa, SET_PMKSA); |
589 | CMD(del_pmksa, DEL_PMKSA); | |
590 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 591 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 592 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 593 | CMD(mgmt_tx, FRAME); |
5be83de5 | 594 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
595 | i++; |
596 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
597 | } | |
f444de05 | 598 | CMD(set_channel, SET_CHANNEL); |
8fdc621d JB |
599 | |
600 | #undef CMD | |
b23aa676 | 601 | |
6829c878 | 602 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
603 | i++; |
604 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
605 | } | |
606 | ||
6829c878 | 607 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
608 | i++; |
609 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
610 | } | |
611 | ||
8fdc621d JB |
612 | nla_nest_end(msg, nl_cmds); |
613 | ||
2e161f78 JB |
614 | if (mgmt_stypes) { |
615 | u16 stypes; | |
616 | struct nlattr *nl_ftypes, *nl_ifs; | |
617 | enum nl80211_iftype ift; | |
618 | ||
619 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
620 | if (!nl_ifs) | |
621 | goto nla_put_failure; | |
622 | ||
623 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
624 | nl_ftypes = nla_nest_start(msg, ift); | |
625 | if (!nl_ftypes) | |
626 | goto nla_put_failure; | |
627 | i = 0; | |
628 | stypes = mgmt_stypes[ift].tx; | |
629 | while (stypes) { | |
630 | if (stypes & 1) | |
631 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
632 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
633 | stypes >>= 1; | |
634 | i++; | |
635 | } | |
636 | nla_nest_end(msg, nl_ftypes); | |
637 | } | |
638 | ||
74b70a4e JB |
639 | nla_nest_end(msg, nl_ifs); |
640 | ||
2e161f78 JB |
641 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
642 | if (!nl_ifs) | |
643 | goto nla_put_failure; | |
644 | ||
645 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
646 | nl_ftypes = nla_nest_start(msg, ift); | |
647 | if (!nl_ftypes) | |
648 | goto nla_put_failure; | |
649 | i = 0; | |
650 | stypes = mgmt_stypes[ift].rx; | |
651 | while (stypes) { | |
652 | if (stypes & 1) | |
653 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
654 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
655 | stypes >>= 1; | |
656 | i++; | |
657 | } | |
658 | nla_nest_end(msg, nl_ftypes); | |
659 | } | |
660 | nla_nest_end(msg, nl_ifs); | |
661 | } | |
662 | ||
55682965 JB |
663 | return genlmsg_end(msg, hdr); |
664 | ||
665 | nla_put_failure: | |
bc3ed28c TG |
666 | genlmsg_cancel(msg, hdr); |
667 | return -EMSGSIZE; | |
55682965 JB |
668 | } |
669 | ||
670 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
671 | { | |
672 | int idx = 0; | |
673 | int start = cb->args[0]; | |
674 | struct cfg80211_registered_device *dev; | |
675 | ||
a1794390 | 676 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 677 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
678 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
679 | continue; | |
b4637271 | 680 | if (++idx <= start) |
55682965 JB |
681 | continue; |
682 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
683 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
684 | dev) < 0) { |
685 | idx--; | |
55682965 | 686 | break; |
b4637271 | 687 | } |
55682965 | 688 | } |
a1794390 | 689 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
690 | |
691 | cb->args[0] = idx; | |
692 | ||
693 | return skb->len; | |
694 | } | |
695 | ||
696 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
697 | { | |
698 | struct sk_buff *msg; | |
699 | struct cfg80211_registered_device *dev; | |
700 | ||
701 | dev = cfg80211_get_dev_from_info(info); | |
702 | if (IS_ERR(dev)) | |
703 | return PTR_ERR(dev); | |
704 | ||
fd2120ca | 705 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
706 | if (!msg) |
707 | goto out_err; | |
708 | ||
709 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
710 | goto out_free; | |
711 | ||
4d0c8aea | 712 | cfg80211_unlock_rdev(dev); |
55682965 | 713 | |
134e6375 | 714 | return genlmsg_reply(msg, info); |
55682965 JB |
715 | |
716 | out_free: | |
717 | nlmsg_free(msg); | |
718 | out_err: | |
4d0c8aea | 719 | cfg80211_unlock_rdev(dev); |
55682965 JB |
720 | return -ENOBUFS; |
721 | } | |
722 | ||
31888487 JM |
723 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
724 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
725 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
726 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
727 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
728 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
729 | }; | |
730 | ||
731 | static int parse_txq_params(struct nlattr *tb[], | |
732 | struct ieee80211_txq_params *txq_params) | |
733 | { | |
734 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
735 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
736 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
737 | return -EINVAL; | |
738 | ||
739 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
740 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
741 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
742 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
743 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
744 | ||
745 | return 0; | |
746 | } | |
747 | ||
f444de05 JB |
748 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
749 | { | |
750 | /* | |
751 | * You can only set the channel explicitly for AP, mesh | |
752 | * and WDS type interfaces; all others have their channel | |
753 | * managed via their respective "establish a connection" | |
754 | * command (connect, join, ...) | |
755 | * | |
756 | * Monitors are special as they are normally slaved to | |
757 | * whatever else is going on, so they behave as though | |
758 | * you tried setting the wiphy channel itself. | |
759 | */ | |
760 | return !wdev || | |
761 | wdev->iftype == NL80211_IFTYPE_AP || | |
762 | wdev->iftype == NL80211_IFTYPE_WDS || | |
763 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
764 | wdev->iftype == NL80211_IFTYPE_MONITOR; | |
765 | } | |
766 | ||
767 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
768 | struct wireless_dev *wdev, | |
769 | struct genl_info *info) | |
770 | { | |
771 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
772 | u32 freq; | |
773 | int result; | |
774 | ||
775 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
776 | return -EINVAL; | |
777 | ||
778 | if (!nl80211_can_set_dev_channel(wdev)) | |
779 | return -EOPNOTSUPP; | |
780 | ||
781 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
782 | channel_type = nla_get_u32(info->attrs[ | |
783 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
784 | if (channel_type != NL80211_CHAN_NO_HT && | |
785 | channel_type != NL80211_CHAN_HT20 && | |
786 | channel_type != NL80211_CHAN_HT40PLUS && | |
787 | channel_type != NL80211_CHAN_HT40MINUS) | |
788 | return -EINVAL; | |
789 | } | |
790 | ||
791 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
792 | ||
793 | mutex_lock(&rdev->devlist_mtx); | |
794 | if (wdev) { | |
795 | wdev_lock(wdev); | |
796 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
797 | wdev_unlock(wdev); | |
798 | } else { | |
799 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
800 | } | |
801 | mutex_unlock(&rdev->devlist_mtx); | |
802 | ||
803 | return result; | |
804 | } | |
805 | ||
806 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
807 | { | |
808 | struct cfg80211_registered_device *rdev; | |
809 | struct net_device *netdev; | |
810 | int result; | |
811 | ||
812 | rtnl_lock(); | |
813 | ||
814 | result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev); | |
815 | if (result) | |
816 | goto unlock; | |
817 | ||
818 | result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); | |
819 | ||
820 | unlock: | |
821 | rtnl_unlock(); | |
822 | ||
823 | return result; | |
824 | } | |
825 | ||
55682965 JB |
826 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
827 | { | |
828 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
829 | struct net_device *netdev = NULL; |
830 | struct wireless_dev *wdev; | |
831 | int result, rem_txq_params = 0; | |
31888487 | 832 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
833 | u32 changed; |
834 | u8 retry_short = 0, retry_long = 0; | |
835 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 836 | u8 coverage_class = 0; |
55682965 | 837 | |
4bbf4d56 | 838 | rtnl_lock(); |
55682965 | 839 | |
f444de05 JB |
840 | /* |
841 | * Try to find the wiphy and netdev. Normally this | |
842 | * function shouldn't need the netdev, but this is | |
843 | * done for backward compatibility -- previously | |
844 | * setting the channel was done per wiphy, but now | |
845 | * it is per netdev. Previous userland like hostapd | |
846 | * also passed a netdev to set_wiphy, so that it is | |
847 | * possible to let that go to the right netdev! | |
848 | */ | |
4bbf4d56 JB |
849 | mutex_lock(&cfg80211_mutex); |
850 | ||
f444de05 JB |
851 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
852 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
853 | ||
854 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
855 | if (netdev && netdev->ieee80211_ptr) { | |
856 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
857 | mutex_lock(&rdev->mtx); | |
858 | } else | |
859 | netdev = NULL; | |
4bbf4d56 JB |
860 | } |
861 | ||
f444de05 JB |
862 | if (!netdev) { |
863 | rdev = __cfg80211_rdev_from_info(info); | |
864 | if (IS_ERR(rdev)) { | |
865 | mutex_unlock(&cfg80211_mutex); | |
866 | result = PTR_ERR(rdev); | |
867 | goto unlock; | |
868 | } | |
869 | wdev = NULL; | |
870 | netdev = NULL; | |
871 | result = 0; | |
872 | ||
873 | mutex_lock(&rdev->mtx); | |
874 | } else if (netif_running(netdev) && | |
875 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
876 | wdev = netdev->ieee80211_ptr; | |
877 | else | |
878 | wdev = NULL; | |
879 | ||
880 | /* | |
881 | * end workaround code, by now the rdev is available | |
882 | * and locked, and wdev may or may not be NULL. | |
883 | */ | |
4bbf4d56 JB |
884 | |
885 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
886 | result = cfg80211_dev_rename( |
887 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
888 | |
889 | mutex_unlock(&cfg80211_mutex); | |
890 | ||
891 | if (result) | |
892 | goto bad_res; | |
31888487 JM |
893 | |
894 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
895 | struct ieee80211_txq_params txq_params; | |
896 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
897 | ||
898 | if (!rdev->ops->set_txq_params) { | |
899 | result = -EOPNOTSUPP; | |
900 | goto bad_res; | |
901 | } | |
902 | ||
903 | nla_for_each_nested(nl_txq_params, | |
904 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
905 | rem_txq_params) { | |
906 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
907 | nla_data(nl_txq_params), | |
908 | nla_len(nl_txq_params), | |
909 | txq_params_policy); | |
910 | result = parse_txq_params(tb, &txq_params); | |
911 | if (result) | |
912 | goto bad_res; | |
913 | ||
914 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
915 | &txq_params); | |
916 | if (result) | |
917 | goto bad_res; | |
918 | } | |
919 | } | |
55682965 | 920 | |
72bdcf34 | 921 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 922 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
923 | if (result) |
924 | goto bad_res; | |
925 | } | |
926 | ||
98d2ff8b JO |
927 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
928 | enum nl80211_tx_power_setting type; | |
929 | int idx, mbm = 0; | |
930 | ||
931 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 932 | result = -EOPNOTSUPP; |
98d2ff8b JO |
933 | goto bad_res; |
934 | } | |
935 | ||
936 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
937 | type = nla_get_u32(info->attrs[idx]); | |
938 | ||
939 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
940 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
941 | result = -EINVAL; | |
942 | goto bad_res; | |
943 | } | |
944 | ||
945 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
946 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
947 | mbm = nla_get_u32(info->attrs[idx]); | |
948 | } | |
949 | ||
950 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
951 | if (result) | |
952 | goto bad_res; | |
953 | } | |
954 | ||
b9a5f8ca JM |
955 | changed = 0; |
956 | ||
957 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
958 | retry_short = nla_get_u8( | |
959 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
960 | if (retry_short == 0) { | |
961 | result = -EINVAL; | |
962 | goto bad_res; | |
963 | } | |
964 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
965 | } | |
966 | ||
967 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
968 | retry_long = nla_get_u8( | |
969 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
970 | if (retry_long == 0) { | |
971 | result = -EINVAL; | |
972 | goto bad_res; | |
973 | } | |
974 | changed |= WIPHY_PARAM_RETRY_LONG; | |
975 | } | |
976 | ||
977 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
978 | frag_threshold = nla_get_u32( | |
979 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
980 | if (frag_threshold < 256) { | |
981 | result = -EINVAL; | |
982 | goto bad_res; | |
983 | } | |
984 | if (frag_threshold != (u32) -1) { | |
985 | /* | |
986 | * Fragments (apart from the last one) are required to | |
987 | * have even length. Make the fragmentation code | |
988 | * simpler by stripping LSB should someone try to use | |
989 | * odd threshold value. | |
990 | */ | |
991 | frag_threshold &= ~0x1; | |
992 | } | |
993 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
994 | } | |
995 | ||
996 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
997 | rts_threshold = nla_get_u32( | |
998 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
999 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1000 | } | |
1001 | ||
81077e82 LT |
1002 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1003 | coverage_class = nla_get_u8( | |
1004 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1005 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1006 | } | |
1007 | ||
b9a5f8ca JM |
1008 | if (changed) { |
1009 | u8 old_retry_short, old_retry_long; | |
1010 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1011 | u8 old_coverage_class; |
b9a5f8ca JM |
1012 | |
1013 | if (!rdev->ops->set_wiphy_params) { | |
1014 | result = -EOPNOTSUPP; | |
1015 | goto bad_res; | |
1016 | } | |
1017 | ||
1018 | old_retry_short = rdev->wiphy.retry_short; | |
1019 | old_retry_long = rdev->wiphy.retry_long; | |
1020 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1021 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1022 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1023 | |
1024 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1025 | rdev->wiphy.retry_short = retry_short; | |
1026 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1027 | rdev->wiphy.retry_long = retry_long; | |
1028 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1029 | rdev->wiphy.frag_threshold = frag_threshold; | |
1030 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1031 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1032 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1033 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1034 | |
1035 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1036 | if (result) { | |
1037 | rdev->wiphy.retry_short = old_retry_short; | |
1038 | rdev->wiphy.retry_long = old_retry_long; | |
1039 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1040 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1041 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1042 | } |
1043 | } | |
72bdcf34 | 1044 | |
306d6112 | 1045 | bad_res: |
4bbf4d56 | 1046 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1047 | if (netdev) |
1048 | dev_put(netdev); | |
4bbf4d56 JB |
1049 | unlock: |
1050 | rtnl_unlock(); | |
55682965 JB |
1051 | return result; |
1052 | } | |
1053 | ||
1054 | ||
1055 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1056 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1057 | struct net_device *dev) |
1058 | { | |
1059 | void *hdr; | |
1060 | ||
1061 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1062 | if (!hdr) | |
1063 | return -1; | |
1064 | ||
1065 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1066 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1067 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1068 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1069 | |
1070 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1071 | rdev->devlist_generation ^ | |
1072 | (cfg80211_rdev_list_generation << 2)); | |
1073 | ||
55682965 JB |
1074 | return genlmsg_end(msg, hdr); |
1075 | ||
1076 | nla_put_failure: | |
bc3ed28c TG |
1077 | genlmsg_cancel(msg, hdr); |
1078 | return -EMSGSIZE; | |
55682965 JB |
1079 | } |
1080 | ||
1081 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1082 | { | |
1083 | int wp_idx = 0; | |
1084 | int if_idx = 0; | |
1085 | int wp_start = cb->args[0]; | |
1086 | int if_start = cb->args[1]; | |
f5ea9120 | 1087 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1088 | struct wireless_dev *wdev; |
1089 | ||
a1794390 | 1090 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1091 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1092 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1093 | continue; |
bba95fef JB |
1094 | if (wp_idx < wp_start) { |
1095 | wp_idx++; | |
55682965 | 1096 | continue; |
bba95fef | 1097 | } |
55682965 JB |
1098 | if_idx = 0; |
1099 | ||
f5ea9120 JB |
1100 | mutex_lock(&rdev->devlist_mtx); |
1101 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1102 | if (if_idx < if_start) { |
1103 | if_idx++; | |
55682965 | 1104 | continue; |
bba95fef | 1105 | } |
55682965 JB |
1106 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1107 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1108 | rdev, wdev->netdev) < 0) { |
1109 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1110 | goto out; |
1111 | } | |
1112 | if_idx++; | |
55682965 | 1113 | } |
f5ea9120 | 1114 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1115 | |
1116 | wp_idx++; | |
55682965 | 1117 | } |
bba95fef | 1118 | out: |
a1794390 | 1119 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1120 | |
1121 | cb->args[0] = wp_idx; | |
1122 | cb->args[1] = if_idx; | |
1123 | ||
1124 | return skb->len; | |
1125 | } | |
1126 | ||
1127 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1128 | { | |
1129 | struct sk_buff *msg; | |
1130 | struct cfg80211_registered_device *dev; | |
1131 | struct net_device *netdev; | |
1132 | int err; | |
1133 | ||
463d0183 | 1134 | err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); |
55682965 JB |
1135 | if (err) |
1136 | return err; | |
1137 | ||
fd2120ca | 1138 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
1139 | if (!msg) |
1140 | goto out_err; | |
1141 | ||
d726405a JB |
1142 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
1143 | dev, netdev) < 0) | |
55682965 JB |
1144 | goto out_free; |
1145 | ||
1146 | dev_put(netdev); | |
4d0c8aea | 1147 | cfg80211_unlock_rdev(dev); |
55682965 | 1148 | |
134e6375 | 1149 | return genlmsg_reply(msg, info); |
55682965 JB |
1150 | |
1151 | out_free: | |
1152 | nlmsg_free(msg); | |
1153 | out_err: | |
1154 | dev_put(netdev); | |
4d0c8aea | 1155 | cfg80211_unlock_rdev(dev); |
55682965 JB |
1156 | return -ENOBUFS; |
1157 | } | |
1158 | ||
66f7ac50 MW |
1159 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1160 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1161 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1162 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1163 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1164 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1165 | }; | |
1166 | ||
1167 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1168 | { | |
1169 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1170 | int flag; | |
1171 | ||
1172 | *mntrflags = 0; | |
1173 | ||
1174 | if (!nla) | |
1175 | return -EINVAL; | |
1176 | ||
1177 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1178 | nla, mntr_flags_policy)) | |
1179 | return -EINVAL; | |
1180 | ||
1181 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1182 | if (flags[flag]) | |
1183 | *mntrflags |= (1<<flag); | |
1184 | ||
1185 | return 0; | |
1186 | } | |
1187 | ||
9bc383de | 1188 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1189 | struct net_device *netdev, u8 use_4addr, |
1190 | enum nl80211_iftype iftype) | |
9bc383de | 1191 | { |
ad4bb6f8 | 1192 | if (!use_4addr) { |
f350a0a8 | 1193 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1194 | return -EBUSY; |
9bc383de | 1195 | return 0; |
ad4bb6f8 | 1196 | } |
9bc383de JB |
1197 | |
1198 | switch (iftype) { | |
1199 | case NL80211_IFTYPE_AP_VLAN: | |
1200 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1201 | return 0; | |
1202 | break; | |
1203 | case NL80211_IFTYPE_STATION: | |
1204 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1205 | return 0; | |
1206 | break; | |
1207 | default: | |
1208 | break; | |
1209 | } | |
1210 | ||
1211 | return -EOPNOTSUPP; | |
1212 | } | |
1213 | ||
55682965 JB |
1214 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1215 | { | |
79c97e97 | 1216 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1217 | struct vif_params params; |
e36d56b6 | 1218 | int err; |
04a773ad | 1219 | enum nl80211_iftype otype, ntype; |
55682965 | 1220 | struct net_device *dev; |
92ffe055 | 1221 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1222 | bool change = false; |
55682965 | 1223 | |
2ec600d6 LCC |
1224 | memset(¶ms, 0, sizeof(params)); |
1225 | ||
3b85875a JB |
1226 | rtnl_lock(); |
1227 | ||
463d0183 | 1228 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1229 | if (err) |
3b85875a JB |
1230 | goto unlock_rtnl; |
1231 | ||
04a773ad | 1232 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1233 | |
723b038d | 1234 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1235 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1236 | if (otype != ntype) |
ac7f9cfa | 1237 | change = true; |
04a773ad | 1238 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 1239 | err = -EINVAL; |
723b038d | 1240 | goto unlock; |
ac7f9cfa | 1241 | } |
723b038d JB |
1242 | } |
1243 | ||
92ffe055 | 1244 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1245 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1246 | err = -EINVAL; |
1247 | goto unlock; | |
1248 | } | |
2ec600d6 LCC |
1249 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1250 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1251 | change = true; |
2ec600d6 LCC |
1252 | } |
1253 | ||
8b787643 FF |
1254 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1255 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1256 | change = true; | |
ad4bb6f8 | 1257 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de JB |
1258 | if (err) |
1259 | goto unlock; | |
8b787643 FF |
1260 | } else { |
1261 | params.use_4addr = -1; | |
1262 | } | |
1263 | ||
92ffe055 | 1264 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1265 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1266 | err = -EINVAL; |
1267 | goto unlock; | |
1268 | } | |
1269 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1270 | &_flags); | |
ac7f9cfa JB |
1271 | if (err) |
1272 | goto unlock; | |
1273 | ||
1274 | flags = &_flags; | |
1275 | change = true; | |
92ffe055 | 1276 | } |
3b85875a | 1277 | |
ac7f9cfa | 1278 | if (change) |
3d54d255 | 1279 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1280 | else |
1281 | err = 0; | |
60719ffd | 1282 | |
9bc383de JB |
1283 | if (!err && params.use_4addr != -1) |
1284 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1285 | ||
55682965 | 1286 | unlock: |
e36d56b6 | 1287 | dev_put(dev); |
79c97e97 | 1288 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1289 | unlock_rtnl: |
1290 | rtnl_unlock(); | |
55682965 JB |
1291 | return err; |
1292 | } | |
1293 | ||
1294 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1295 | { | |
79c97e97 | 1296 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1297 | struct vif_params params; |
55682965 JB |
1298 | int err; |
1299 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1300 | u32 flags; |
55682965 | 1301 | |
2ec600d6 LCC |
1302 | memset(¶ms, 0, sizeof(params)); |
1303 | ||
55682965 JB |
1304 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1305 | return -EINVAL; | |
1306 | ||
1307 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1308 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1309 | if (type > NL80211_IFTYPE_MAX) | |
1310 | return -EINVAL; | |
1311 | } | |
1312 | ||
3b85875a JB |
1313 | rtnl_lock(); |
1314 | ||
79c97e97 JB |
1315 | rdev = cfg80211_get_dev_from_info(info); |
1316 | if (IS_ERR(rdev)) { | |
1317 | err = PTR_ERR(rdev); | |
3b85875a JB |
1318 | goto unlock_rtnl; |
1319 | } | |
55682965 | 1320 | |
79c97e97 JB |
1321 | if (!rdev->ops->add_virtual_intf || |
1322 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1323 | err = -EOPNOTSUPP; |
1324 | goto unlock; | |
1325 | } | |
1326 | ||
2ec600d6 LCC |
1327 | if (type == NL80211_IFTYPE_MESH_POINT && |
1328 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1329 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1330 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1331 | } | |
1332 | ||
9bc383de | 1333 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1334 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1335 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de JB |
1336 | if (err) |
1337 | goto unlock; | |
1338 | } | |
8b787643 | 1339 | |
66f7ac50 MW |
1340 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1341 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1342 | &flags); | |
79c97e97 | 1343 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1344 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1345 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1346 | |
55682965 | 1347 | unlock: |
79c97e97 | 1348 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1349 | unlock_rtnl: |
1350 | rtnl_unlock(); | |
55682965 JB |
1351 | return err; |
1352 | } | |
1353 | ||
1354 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1355 | { | |
79c97e97 | 1356 | struct cfg80211_registered_device *rdev; |
463d0183 | 1357 | int err; |
55682965 JB |
1358 | struct net_device *dev; |
1359 | ||
3b85875a JB |
1360 | rtnl_lock(); |
1361 | ||
463d0183 | 1362 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1363 | if (err) |
3b85875a | 1364 | goto unlock_rtnl; |
55682965 | 1365 | |
79c97e97 | 1366 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1367 | err = -EOPNOTSUPP; |
1368 | goto out; | |
1369 | } | |
1370 | ||
463d0183 | 1371 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1372 | |
1373 | out: | |
79c97e97 | 1374 | cfg80211_unlock_rdev(rdev); |
463d0183 | 1375 | dev_put(dev); |
3b85875a JB |
1376 | unlock_rtnl: |
1377 | rtnl_unlock(); | |
55682965 JB |
1378 | return err; |
1379 | } | |
1380 | ||
41ade00f JB |
1381 | struct get_key_cookie { |
1382 | struct sk_buff *msg; | |
1383 | int error; | |
b9454e83 | 1384 | int idx; |
41ade00f JB |
1385 | }; |
1386 | ||
1387 | static void get_key_callback(void *c, struct key_params *params) | |
1388 | { | |
b9454e83 | 1389 | struct nlattr *key; |
41ade00f JB |
1390 | struct get_key_cookie *cookie = c; |
1391 | ||
1392 | if (params->key) | |
1393 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1394 | params->key_len, params->key); | |
1395 | ||
1396 | if (params->seq) | |
1397 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1398 | params->seq_len, params->seq); | |
1399 | ||
1400 | if (params->cipher) | |
1401 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1402 | params->cipher); | |
1403 | ||
b9454e83 JB |
1404 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1405 | if (!key) | |
1406 | goto nla_put_failure; | |
1407 | ||
1408 | if (params->key) | |
1409 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1410 | params->key_len, params->key); | |
1411 | ||
1412 | if (params->seq) | |
1413 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1414 | params->seq_len, params->seq); | |
1415 | ||
1416 | if (params->cipher) | |
1417 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1418 | params->cipher); | |
1419 | ||
1420 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1421 | ||
1422 | nla_nest_end(cookie->msg, key); | |
1423 | ||
41ade00f JB |
1424 | return; |
1425 | nla_put_failure: | |
1426 | cookie->error = 1; | |
1427 | } | |
1428 | ||
1429 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1430 | { | |
79c97e97 | 1431 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1432 | int err; |
1433 | struct net_device *dev; | |
1434 | u8 key_idx = 0; | |
1435 | u8 *mac_addr = NULL; | |
1436 | struct get_key_cookie cookie = { | |
1437 | .error = 0, | |
1438 | }; | |
1439 | void *hdr; | |
1440 | struct sk_buff *msg; | |
1441 | ||
1442 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1443 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1444 | ||
3cfcf6ac | 1445 | if (key_idx > 5) |
41ade00f JB |
1446 | return -EINVAL; |
1447 | ||
1448 | if (info->attrs[NL80211_ATTR_MAC]) | |
1449 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1450 | ||
3b85875a JB |
1451 | rtnl_lock(); |
1452 | ||
463d0183 | 1453 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1454 | if (err) |
3b85875a | 1455 | goto unlock_rtnl; |
41ade00f | 1456 | |
79c97e97 | 1457 | if (!rdev->ops->get_key) { |
41ade00f JB |
1458 | err = -EOPNOTSUPP; |
1459 | goto out; | |
1460 | } | |
1461 | ||
fd2120ca | 1462 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1463 | if (!msg) { |
1464 | err = -ENOMEM; | |
1465 | goto out; | |
1466 | } | |
1467 | ||
1468 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1469 | NL80211_CMD_NEW_KEY); | |
1470 | ||
1471 | if (IS_ERR(hdr)) { | |
1472 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1473 | goto free_msg; |
41ade00f JB |
1474 | } |
1475 | ||
1476 | cookie.msg = msg; | |
b9454e83 | 1477 | cookie.idx = key_idx; |
41ade00f JB |
1478 | |
1479 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1480 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1481 | if (mac_addr) | |
1482 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1483 | ||
79c97e97 | 1484 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1485 | &cookie, get_key_callback); |
41ade00f JB |
1486 | |
1487 | if (err) | |
6c95e2a2 | 1488 | goto free_msg; |
41ade00f JB |
1489 | |
1490 | if (cookie.error) | |
1491 | goto nla_put_failure; | |
1492 | ||
1493 | genlmsg_end(msg, hdr); | |
134e6375 | 1494 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1495 | goto out; |
1496 | ||
1497 | nla_put_failure: | |
1498 | err = -ENOBUFS; | |
6c95e2a2 | 1499 | free_msg: |
41ade00f JB |
1500 | nlmsg_free(msg); |
1501 | out: | |
79c97e97 | 1502 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1503 | dev_put(dev); |
3b85875a JB |
1504 | unlock_rtnl: |
1505 | rtnl_unlock(); | |
1506 | ||
41ade00f JB |
1507 | return err; |
1508 | } | |
1509 | ||
1510 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1511 | { | |
79c97e97 | 1512 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1513 | struct key_parse key; |
41ade00f JB |
1514 | int err; |
1515 | struct net_device *dev; | |
3cfcf6ac JM |
1516 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1517 | u8 key_index); | |
41ade00f | 1518 | |
b9454e83 JB |
1519 | err = nl80211_parse_key(info, &key); |
1520 | if (err) | |
1521 | return err; | |
41ade00f | 1522 | |
b9454e83 | 1523 | if (key.idx < 0) |
41ade00f JB |
1524 | return -EINVAL; |
1525 | ||
b9454e83 JB |
1526 | /* only support setting default key */ |
1527 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1528 | return -EINVAL; |
1529 | ||
3b85875a JB |
1530 | rtnl_lock(); |
1531 | ||
463d0183 | 1532 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1533 | if (err) |
3b85875a | 1534 | goto unlock_rtnl; |
41ade00f | 1535 | |
b9454e83 | 1536 | if (key.def) |
79c97e97 | 1537 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1538 | else |
79c97e97 | 1539 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1540 | |
1541 | if (!func) { | |
41ade00f JB |
1542 | err = -EOPNOTSUPP; |
1543 | goto out; | |
1544 | } | |
1545 | ||
fffd0934 JB |
1546 | wdev_lock(dev->ieee80211_ptr); |
1547 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1548 | if (!err) | |
1549 | err = func(&rdev->wiphy, dev, key.idx); | |
1550 | ||
3d23e349 | 1551 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1552 | if (!err) { |
79c97e97 | 1553 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1554 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1555 | else |
b9454e83 | 1556 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1557 | } |
1558 | #endif | |
fffd0934 | 1559 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1560 | |
1561 | out: | |
79c97e97 | 1562 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1563 | dev_put(dev); |
3b85875a JB |
1564 | |
1565 | unlock_rtnl: | |
1566 | rtnl_unlock(); | |
1567 | ||
41ade00f JB |
1568 | return err; |
1569 | } | |
1570 | ||
1571 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1572 | { | |
79c97e97 | 1573 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1574 | int err; |
41ade00f | 1575 | struct net_device *dev; |
b9454e83 | 1576 | struct key_parse key; |
41ade00f JB |
1577 | u8 *mac_addr = NULL; |
1578 | ||
b9454e83 JB |
1579 | err = nl80211_parse_key(info, &key); |
1580 | if (err) | |
1581 | return err; | |
41ade00f | 1582 | |
b9454e83 | 1583 | if (!key.p.key) |
41ade00f JB |
1584 | return -EINVAL; |
1585 | ||
41ade00f JB |
1586 | if (info->attrs[NL80211_ATTR_MAC]) |
1587 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1588 | ||
3b85875a JB |
1589 | rtnl_lock(); |
1590 | ||
463d0183 | 1591 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1592 | if (err) |
3b85875a | 1593 | goto unlock_rtnl; |
41ade00f | 1594 | |
fffd0934 JB |
1595 | if (!rdev->ops->add_key) { |
1596 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1597 | goto out; |
1598 | } | |
1599 | ||
fffd0934 JB |
1600 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1601 | err = -EINVAL; | |
41ade00f JB |
1602 | goto out; |
1603 | } | |
1604 | ||
fffd0934 JB |
1605 | wdev_lock(dev->ieee80211_ptr); |
1606 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1607 | if (!err) | |
1608 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1609 | mac_addr, &key.p); | |
1610 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1611 | |
1612 | out: | |
79c97e97 | 1613 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1614 | dev_put(dev); |
3b85875a JB |
1615 | unlock_rtnl: |
1616 | rtnl_unlock(); | |
1617 | ||
41ade00f JB |
1618 | return err; |
1619 | } | |
1620 | ||
1621 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1622 | { | |
79c97e97 | 1623 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1624 | int err; |
1625 | struct net_device *dev; | |
41ade00f | 1626 | u8 *mac_addr = NULL; |
b9454e83 | 1627 | struct key_parse key; |
41ade00f | 1628 | |
b9454e83 JB |
1629 | err = nl80211_parse_key(info, &key); |
1630 | if (err) | |
1631 | return err; | |
41ade00f JB |
1632 | |
1633 | if (info->attrs[NL80211_ATTR_MAC]) | |
1634 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1635 | ||
3b85875a JB |
1636 | rtnl_lock(); |
1637 | ||
463d0183 | 1638 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1639 | if (err) |
3b85875a | 1640 | goto unlock_rtnl; |
41ade00f | 1641 | |
79c97e97 | 1642 | if (!rdev->ops->del_key) { |
41ade00f JB |
1643 | err = -EOPNOTSUPP; |
1644 | goto out; | |
1645 | } | |
1646 | ||
fffd0934 JB |
1647 | wdev_lock(dev->ieee80211_ptr); |
1648 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1649 | if (!err) | |
1650 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1651 | |
3d23e349 | 1652 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1653 | if (!err) { |
b9454e83 | 1654 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1655 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1656 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1657 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1658 | } | |
1659 | #endif | |
fffd0934 | 1660 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1661 | |
41ade00f | 1662 | out: |
79c97e97 | 1663 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1664 | dev_put(dev); |
3b85875a JB |
1665 | |
1666 | unlock_rtnl: | |
1667 | rtnl_unlock(); | |
1668 | ||
41ade00f JB |
1669 | return err; |
1670 | } | |
1671 | ||
ed1b6cc7 JB |
1672 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1673 | { | |
1674 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1675 | struct beacon_parameters *info); | |
79c97e97 | 1676 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1677 | int err; |
1678 | struct net_device *dev; | |
1679 | struct beacon_parameters params; | |
1680 | int haveinfo = 0; | |
1681 | ||
f4a11bb0 JB |
1682 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1683 | return -EINVAL; | |
1684 | ||
3b85875a JB |
1685 | rtnl_lock(); |
1686 | ||
463d0183 | 1687 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1688 | if (err) |
3b85875a | 1689 | goto unlock_rtnl; |
ed1b6cc7 | 1690 | |
eec60b03 JM |
1691 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1692 | err = -EOPNOTSUPP; | |
1693 | goto out; | |
1694 | } | |
1695 | ||
ed1b6cc7 JB |
1696 | switch (info->genlhdr->cmd) { |
1697 | case NL80211_CMD_NEW_BEACON: | |
1698 | /* these are required for NEW_BEACON */ | |
1699 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1700 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1701 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1702 | err = -EINVAL; | |
1703 | goto out; | |
1704 | } | |
1705 | ||
79c97e97 | 1706 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1707 | break; |
1708 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1709 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1710 | break; |
1711 | default: | |
1712 | WARN_ON(1); | |
1713 | err = -EOPNOTSUPP; | |
1714 | goto out; | |
1715 | } | |
1716 | ||
1717 | if (!call) { | |
1718 | err = -EOPNOTSUPP; | |
1719 | goto out; | |
1720 | } | |
1721 | ||
1722 | memset(¶ms, 0, sizeof(params)); | |
1723 | ||
1724 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1725 | params.interval = | |
1726 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1727 | haveinfo = 1; | |
1728 | } | |
1729 | ||
1730 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1731 | params.dtim_period = | |
1732 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1733 | haveinfo = 1; | |
1734 | } | |
1735 | ||
1736 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1737 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1738 | params.head_len = | |
1739 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1740 | haveinfo = 1; | |
1741 | } | |
1742 | ||
1743 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1744 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1745 | params.tail_len = | |
1746 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1747 | haveinfo = 1; | |
1748 | } | |
1749 | ||
1750 | if (!haveinfo) { | |
1751 | err = -EINVAL; | |
1752 | goto out; | |
1753 | } | |
1754 | ||
79c97e97 | 1755 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1756 | |
1757 | out: | |
79c97e97 | 1758 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1759 | dev_put(dev); |
3b85875a JB |
1760 | unlock_rtnl: |
1761 | rtnl_unlock(); | |
1762 | ||
ed1b6cc7 JB |
1763 | return err; |
1764 | } | |
1765 | ||
1766 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1767 | { | |
79c97e97 | 1768 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1769 | int err; |
1770 | struct net_device *dev; | |
1771 | ||
3b85875a JB |
1772 | rtnl_lock(); |
1773 | ||
463d0183 | 1774 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1775 | if (err) |
3b85875a | 1776 | goto unlock_rtnl; |
ed1b6cc7 | 1777 | |
79c97e97 | 1778 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1779 | err = -EOPNOTSUPP; |
1780 | goto out; | |
1781 | } | |
1782 | ||
eec60b03 JM |
1783 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1784 | err = -EOPNOTSUPP; | |
1785 | goto out; | |
1786 | } | |
79c97e97 | 1787 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1788 | |
1789 | out: | |
79c97e97 | 1790 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1791 | dev_put(dev); |
3b85875a JB |
1792 | unlock_rtnl: |
1793 | rtnl_unlock(); | |
1794 | ||
ed1b6cc7 JB |
1795 | return err; |
1796 | } | |
1797 | ||
5727ef1b JB |
1798 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1799 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1800 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1801 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1802 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1803 | }; |
1804 | ||
eccb8e8f JB |
1805 | static int parse_station_flags(struct genl_info *info, |
1806 | struct station_parameters *params) | |
5727ef1b JB |
1807 | { |
1808 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1809 | struct nlattr *nla; |
5727ef1b JB |
1810 | int flag; |
1811 | ||
eccb8e8f JB |
1812 | /* |
1813 | * Try parsing the new attribute first so userspace | |
1814 | * can specify both for older kernels. | |
1815 | */ | |
1816 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1817 | if (nla) { | |
1818 | struct nl80211_sta_flag_update *sta_flags; | |
1819 | ||
1820 | sta_flags = nla_data(nla); | |
1821 | params->sta_flags_mask = sta_flags->mask; | |
1822 | params->sta_flags_set = sta_flags->set; | |
1823 | if ((params->sta_flags_mask | | |
1824 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1825 | return -EINVAL; | |
1826 | return 0; | |
1827 | } | |
1828 | ||
1829 | /* if present, parse the old attribute */ | |
5727ef1b | 1830 | |
eccb8e8f | 1831 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1832 | if (!nla) |
1833 | return 0; | |
1834 | ||
1835 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1836 | nla, sta_flags_policy)) | |
1837 | return -EINVAL; | |
1838 | ||
eccb8e8f JB |
1839 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1840 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1841 | |
1842 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1843 | if (flags[flag]) | |
eccb8e8f | 1844 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1845 | |
1846 | return 0; | |
1847 | } | |
1848 | ||
fd5b74dc JB |
1849 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1850 | int flags, struct net_device *dev, | |
98b62183 | 1851 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1852 | { |
1853 | void *hdr; | |
420e7fab HR |
1854 | struct nlattr *sinfoattr, *txrate; |
1855 | u16 bitrate; | |
fd5b74dc JB |
1856 | |
1857 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1858 | if (!hdr) | |
1859 | return -1; | |
1860 | ||
1861 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1862 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1863 | ||
f5ea9120 JB |
1864 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1865 | ||
2ec600d6 LCC |
1866 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1867 | if (!sinfoattr) | |
fd5b74dc | 1868 | goto nla_put_failure; |
2ec600d6 LCC |
1869 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1870 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1871 | sinfo->inactive_time); | |
1872 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1873 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1874 | sinfo->rx_bytes); | |
1875 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1876 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1877 | sinfo->tx_bytes); | |
1878 | if (sinfo->filled & STATION_INFO_LLID) | |
1879 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1880 | sinfo->llid); | |
1881 | if (sinfo->filled & STATION_INFO_PLID) | |
1882 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1883 | sinfo->plid); | |
1884 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1885 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1886 | sinfo->plink_state); | |
420e7fab HR |
1887 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1888 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1889 | sinfo->signal); | |
1890 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1891 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1892 | if (!txrate) | |
1893 | goto nla_put_failure; | |
1894 | ||
254416aa JL |
1895 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1896 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1897 | if (bitrate > 0) |
1898 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1899 | |
420e7fab HR |
1900 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1901 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1902 | sinfo->txrate.mcs); | |
1903 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1904 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1905 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1906 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1907 | ||
1908 | nla_nest_end(msg, txrate); | |
1909 | } | |
98c8a60a JM |
1910 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1911 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1912 | sinfo->rx_packets); | |
1913 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1914 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1915 | sinfo->tx_packets); | |
2ec600d6 | 1916 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1917 | |
1918 | return genlmsg_end(msg, hdr); | |
1919 | ||
1920 | nla_put_failure: | |
bc3ed28c TG |
1921 | genlmsg_cancel(msg, hdr); |
1922 | return -EMSGSIZE; | |
fd5b74dc JB |
1923 | } |
1924 | ||
2ec600d6 | 1925 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1926 | struct netlink_callback *cb) |
2ec600d6 | 1927 | { |
2ec600d6 LCC |
1928 | struct station_info sinfo; |
1929 | struct cfg80211_registered_device *dev; | |
bba95fef | 1930 | struct net_device *netdev; |
2ec600d6 | 1931 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1932 | int ifidx = cb->args[0]; |
1933 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1934 | int err; |
2ec600d6 | 1935 | |
a043897a HS |
1936 | if (!ifidx) |
1937 | ifidx = nl80211_get_ifidx(cb); | |
1938 | if (ifidx < 0) | |
1939 | return ifidx; | |
2ec600d6 | 1940 | |
3b85875a JB |
1941 | rtnl_lock(); |
1942 | ||
463d0183 | 1943 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1944 | if (!netdev) { |
1945 | err = -ENODEV; | |
1946 | goto out_rtnl; | |
1947 | } | |
2ec600d6 | 1948 | |
463d0183 | 1949 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1950 | if (IS_ERR(dev)) { |
1951 | err = PTR_ERR(dev); | |
3b85875a | 1952 | goto out_rtnl; |
bba95fef JB |
1953 | } |
1954 | ||
1955 | if (!dev->ops->dump_station) { | |
eec60b03 | 1956 | err = -EOPNOTSUPP; |
bba95fef JB |
1957 | goto out_err; |
1958 | } | |
1959 | ||
bba95fef JB |
1960 | while (1) { |
1961 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1962 | mac_addr, &sinfo); | |
1963 | if (err == -ENOENT) | |
1964 | break; | |
1965 | if (err) | |
3b85875a | 1966 | goto out_err; |
bba95fef JB |
1967 | |
1968 | if (nl80211_send_station(skb, | |
1969 | NETLINK_CB(cb->skb).pid, | |
1970 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1971 | netdev, mac_addr, | |
1972 | &sinfo) < 0) | |
1973 | goto out; | |
1974 | ||
1975 | sta_idx++; | |
1976 | } | |
1977 | ||
1978 | ||
1979 | out: | |
1980 | cb->args[1] = sta_idx; | |
1981 | err = skb->len; | |
bba95fef | 1982 | out_err: |
4d0c8aea | 1983 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1984 | out_rtnl: |
1985 | rtnl_unlock(); | |
bba95fef JB |
1986 | |
1987 | return err; | |
2ec600d6 | 1988 | } |
fd5b74dc | 1989 | |
5727ef1b JB |
1990 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1991 | { | |
79c97e97 | 1992 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1993 | int err; |
1994 | struct net_device *dev; | |
2ec600d6 | 1995 | struct station_info sinfo; |
fd5b74dc JB |
1996 | struct sk_buff *msg; |
1997 | u8 *mac_addr = NULL; | |
1998 | ||
2ec600d6 | 1999 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2000 | |
2001 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2002 | return -EINVAL; | |
2003 | ||
2004 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2005 | ||
3b85875a JB |
2006 | rtnl_lock(); |
2007 | ||
463d0183 | 2008 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
fd5b74dc | 2009 | if (err) |
3b85875a | 2010 | goto out_rtnl; |
fd5b74dc | 2011 | |
79c97e97 | 2012 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
2013 | err = -EOPNOTSUPP; |
2014 | goto out; | |
2015 | } | |
2016 | ||
79c97e97 | 2017 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
2018 | if (err) |
2019 | goto out; | |
2020 | ||
fd2120ca | 2021 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
2022 | if (!msg) |
2023 | goto out; | |
2024 | ||
2025 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 2026 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
2027 | goto out_free; |
2028 | ||
134e6375 | 2029 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
2030 | goto out; |
2031 | ||
2032 | out_free: | |
2033 | nlmsg_free(msg); | |
fd5b74dc | 2034 | out: |
79c97e97 | 2035 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 2036 | dev_put(dev); |
3b85875a JB |
2037 | out_rtnl: |
2038 | rtnl_unlock(); | |
2039 | ||
fd5b74dc | 2040 | return err; |
5727ef1b JB |
2041 | } |
2042 | ||
2043 | /* | |
c258d2de | 2044 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2045 | */ |
463d0183 | 2046 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
2047 | struct cfg80211_registered_device *rdev, |
2048 | struct net_device **vlan) | |
2049 | { | |
463d0183 | 2050 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
2051 | *vlan = NULL; |
2052 | ||
2053 | if (vlanattr) { | |
463d0183 JB |
2054 | *vlan = dev_get_by_index(genl_info_net(info), |
2055 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
2056 | if (!*vlan) |
2057 | return -ENODEV; | |
2058 | if (!(*vlan)->ieee80211_ptr) | |
2059 | return -EINVAL; | |
2060 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
2061 | return -EINVAL; | |
c258d2de FF |
2062 | if (!netif_running(*vlan)) |
2063 | return -ENETDOWN; | |
5727ef1b JB |
2064 | } |
2065 | return 0; | |
2066 | } | |
2067 | ||
2068 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2069 | { | |
79c97e97 | 2070 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2071 | int err; |
2072 | struct net_device *dev; | |
2073 | struct station_parameters params; | |
2074 | u8 *mac_addr = NULL; | |
2075 | ||
2076 | memset(¶ms, 0, sizeof(params)); | |
2077 | ||
2078 | params.listen_interval = -1; | |
2079 | ||
2080 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2081 | return -EINVAL; | |
2082 | ||
2083 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2084 | return -EINVAL; | |
2085 | ||
2086 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2087 | ||
2088 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2089 | params.supported_rates = | |
2090 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2091 | params.supported_rates_len = | |
2092 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2093 | } | |
2094 | ||
2095 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2096 | params.listen_interval = | |
2097 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2098 | ||
36aedc90 JM |
2099 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2100 | params.ht_capa = | |
2101 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2102 | ||
eccb8e8f | 2103 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2104 | return -EINVAL; |
2105 | ||
2ec600d6 LCC |
2106 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2107 | params.plink_action = | |
2108 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2109 | ||
3b85875a JB |
2110 | rtnl_lock(); |
2111 | ||
463d0183 | 2112 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2113 | if (err) |
3b85875a | 2114 | goto out_rtnl; |
5727ef1b | 2115 | |
463d0183 | 2116 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2117 | if (err) |
034d655e | 2118 | goto out; |
a97f4424 JB |
2119 | |
2120 | /* validate settings */ | |
2121 | err = 0; | |
2122 | ||
2123 | switch (dev->ieee80211_ptr->iftype) { | |
2124 | case NL80211_IFTYPE_AP: | |
2125 | case NL80211_IFTYPE_AP_VLAN: | |
2126 | /* disallow mesh-specific things */ | |
2127 | if (params.plink_action) | |
2128 | err = -EINVAL; | |
2129 | break; | |
2130 | case NL80211_IFTYPE_STATION: | |
2131 | /* disallow everything but AUTHORIZED flag */ | |
2132 | if (params.plink_action) | |
2133 | err = -EINVAL; | |
2134 | if (params.vlan) | |
2135 | err = -EINVAL; | |
2136 | if (params.supported_rates) | |
2137 | err = -EINVAL; | |
2138 | if (params.ht_capa) | |
2139 | err = -EINVAL; | |
2140 | if (params.listen_interval >= 0) | |
2141 | err = -EINVAL; | |
2142 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2143 | err = -EINVAL; | |
2144 | break; | |
2145 | case NL80211_IFTYPE_MESH_POINT: | |
2146 | /* disallow things mesh doesn't support */ | |
2147 | if (params.vlan) | |
2148 | err = -EINVAL; | |
2149 | if (params.ht_capa) | |
2150 | err = -EINVAL; | |
2151 | if (params.listen_interval >= 0) | |
2152 | err = -EINVAL; | |
2153 | if (params.supported_rates) | |
2154 | err = -EINVAL; | |
2155 | if (params.sta_flags_mask) | |
2156 | err = -EINVAL; | |
2157 | break; | |
2158 | default: | |
2159 | err = -EINVAL; | |
034d655e JB |
2160 | } |
2161 | ||
5727ef1b JB |
2162 | if (err) |
2163 | goto out; | |
2164 | ||
79c97e97 | 2165 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2166 | err = -EOPNOTSUPP; |
2167 | goto out; | |
2168 | } | |
2169 | ||
79c97e97 | 2170 | err = rdev->ops->change_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_new_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 | struct station_parameters params; | |
2189 | u8 *mac_addr = NULL; | |
2190 | ||
2191 | memset(¶ms, 0, sizeof(params)); | |
2192 | ||
2193 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2194 | return -EINVAL; | |
2195 | ||
5727ef1b JB |
2196 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2197 | return -EINVAL; | |
2198 | ||
2199 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2200 | return -EINVAL; | |
2201 | ||
0e956c13 TLSC |
2202 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2203 | return -EINVAL; | |
2204 | ||
5727ef1b JB |
2205 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2206 | params.supported_rates = | |
2207 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2208 | params.supported_rates_len = | |
2209 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2210 | params.listen_interval = | |
2211 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2212 | |
0e956c13 TLSC |
2213 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2214 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2215 | return -EINVAL; | |
51b50fbe | 2216 | |
36aedc90 JM |
2217 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2218 | params.ht_capa = | |
2219 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2220 | |
eccb8e8f | 2221 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2222 | return -EINVAL; |
2223 | ||
3b85875a JB |
2224 | rtnl_lock(); |
2225 | ||
463d0183 | 2226 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2227 | if (err) |
3b85875a | 2228 | goto out_rtnl; |
5727ef1b | 2229 | |
0e956c13 TLSC |
2230 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
2231 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { | |
2232 | err = -EINVAL; | |
2233 | goto out; | |
2234 | } | |
2235 | ||
463d0183 | 2236 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2237 | if (err) |
e80cf853 | 2238 | goto out; |
a97f4424 JB |
2239 | |
2240 | /* validate settings */ | |
2241 | err = 0; | |
2242 | ||
79c97e97 | 2243 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2244 | err = -EOPNOTSUPP; |
2245 | goto out; | |
2246 | } | |
2247 | ||
35a8efe1 JM |
2248 | if (!netif_running(dev)) { |
2249 | err = -ENETDOWN; | |
2250 | goto out; | |
2251 | } | |
2252 | ||
79c97e97 | 2253 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2254 | |
2255 | out: | |
2256 | if (params.vlan) | |
2257 | dev_put(params.vlan); | |
79c97e97 | 2258 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2259 | dev_put(dev); |
3b85875a JB |
2260 | out_rtnl: |
2261 | rtnl_unlock(); | |
2262 | ||
5727ef1b JB |
2263 | return err; |
2264 | } | |
2265 | ||
2266 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2267 | { | |
79c97e97 | 2268 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2269 | int err; |
2270 | struct net_device *dev; | |
2271 | u8 *mac_addr = NULL; | |
2272 | ||
2273 | if (info->attrs[NL80211_ATTR_MAC]) | |
2274 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2275 | ||
3b85875a JB |
2276 | rtnl_lock(); |
2277 | ||
463d0183 | 2278 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2279 | if (err) |
3b85875a | 2280 | goto out_rtnl; |
5727ef1b | 2281 | |
e80cf853 | 2282 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 MP |
2283 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
2284 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
2285 | err = -EINVAL; |
2286 | goto out; | |
2287 | } | |
2288 | ||
79c97e97 | 2289 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2290 | err = -EOPNOTSUPP; |
2291 | goto out; | |
2292 | } | |
2293 | ||
79c97e97 | 2294 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2295 | |
2296 | out: | |
79c97e97 | 2297 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2298 | dev_put(dev); |
3b85875a JB |
2299 | out_rtnl: |
2300 | rtnl_unlock(); | |
2301 | ||
5727ef1b JB |
2302 | return err; |
2303 | } | |
2304 | ||
2ec600d6 LCC |
2305 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2306 | int flags, struct net_device *dev, | |
2307 | u8 *dst, u8 *next_hop, | |
2308 | struct mpath_info *pinfo) | |
2309 | { | |
2310 | void *hdr; | |
2311 | struct nlattr *pinfoattr; | |
2312 | ||
2313 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2314 | if (!hdr) | |
2315 | return -1; | |
2316 | ||
2317 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2318 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2319 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2320 | ||
f5ea9120 JB |
2321 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2322 | ||
2ec600d6 LCC |
2323 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2324 | if (!pinfoattr) | |
2325 | goto nla_put_failure; | |
2326 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2327 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2328 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2329 | if (pinfo->filled & MPATH_INFO_SN) |
2330 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2331 | pinfo->sn); | |
2ec600d6 LCC |
2332 | if (pinfo->filled & MPATH_INFO_METRIC) |
2333 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2334 | pinfo->metric); | |
2335 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2336 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2337 | pinfo->exptime); | |
2338 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2339 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2340 | pinfo->flags); | |
2341 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2342 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2343 | pinfo->discovery_timeout); | |
2344 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2345 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2346 | pinfo->discovery_retries); | |
2347 | ||
2348 | nla_nest_end(msg, pinfoattr); | |
2349 | ||
2350 | return genlmsg_end(msg, hdr); | |
2351 | ||
2352 | nla_put_failure: | |
bc3ed28c TG |
2353 | genlmsg_cancel(msg, hdr); |
2354 | return -EMSGSIZE; | |
2ec600d6 LCC |
2355 | } |
2356 | ||
2357 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2358 | struct netlink_callback *cb) |
2ec600d6 | 2359 | { |
2ec600d6 LCC |
2360 | struct mpath_info pinfo; |
2361 | struct cfg80211_registered_device *dev; | |
bba95fef | 2362 | struct net_device *netdev; |
2ec600d6 LCC |
2363 | u8 dst[ETH_ALEN]; |
2364 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2365 | int ifidx = cb->args[0]; |
2366 | int path_idx = cb->args[1]; | |
2ec600d6 | 2367 | int err; |
2ec600d6 | 2368 | |
a043897a HS |
2369 | if (!ifidx) |
2370 | ifidx = nl80211_get_ifidx(cb); | |
2371 | if (ifidx < 0) | |
2372 | return ifidx; | |
bba95fef | 2373 | |
3b85875a JB |
2374 | rtnl_lock(); |
2375 | ||
463d0183 | 2376 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2377 | if (!netdev) { |
2378 | err = -ENODEV; | |
2379 | goto out_rtnl; | |
2380 | } | |
bba95fef | 2381 | |
463d0183 | 2382 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2383 | if (IS_ERR(dev)) { |
2384 | err = PTR_ERR(dev); | |
3b85875a | 2385 | goto out_rtnl; |
bba95fef JB |
2386 | } |
2387 | ||
2388 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2389 | err = -EOPNOTSUPP; |
bba95fef JB |
2390 | goto out_err; |
2391 | } | |
2392 | ||
eec60b03 JM |
2393 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2394 | err = -EOPNOTSUPP; | |
0448b5fc | 2395 | goto out_err; |
eec60b03 JM |
2396 | } |
2397 | ||
bba95fef JB |
2398 | while (1) { |
2399 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2400 | dst, next_hop, &pinfo); | |
2401 | if (err == -ENOENT) | |
2ec600d6 | 2402 | break; |
bba95fef | 2403 | if (err) |
3b85875a | 2404 | goto out_err; |
2ec600d6 | 2405 | |
bba95fef JB |
2406 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2407 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2408 | netdev, dst, next_hop, | |
2409 | &pinfo) < 0) | |
2410 | goto out; | |
2ec600d6 | 2411 | |
bba95fef | 2412 | path_idx++; |
2ec600d6 | 2413 | } |
2ec600d6 | 2414 | |
2ec600d6 | 2415 | |
bba95fef JB |
2416 | out: |
2417 | cb->args[1] = path_idx; | |
2418 | err = skb->len; | |
bba95fef | 2419 | out_err: |
4d0c8aea | 2420 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2421 | out_rtnl: |
2422 | rtnl_unlock(); | |
bba95fef JB |
2423 | |
2424 | return err; | |
2ec600d6 LCC |
2425 | } |
2426 | ||
2427 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2428 | { | |
79c97e97 | 2429 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2430 | int err; |
2431 | struct net_device *dev; | |
2432 | struct mpath_info pinfo; | |
2433 | struct sk_buff *msg; | |
2434 | u8 *dst = NULL; | |
2435 | u8 next_hop[ETH_ALEN]; | |
2436 | ||
2437 | memset(&pinfo, 0, sizeof(pinfo)); | |
2438 | ||
2439 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2440 | return -EINVAL; | |
2441 | ||
2442 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2443 | ||
3b85875a JB |
2444 | rtnl_lock(); |
2445 | ||
463d0183 | 2446 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2447 | if (err) |
3b85875a | 2448 | goto out_rtnl; |
2ec600d6 | 2449 | |
79c97e97 | 2450 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2451 | err = -EOPNOTSUPP; |
2452 | goto out; | |
2453 | } | |
2454 | ||
eec60b03 JM |
2455 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2456 | err = -EOPNOTSUPP; | |
2457 | goto out; | |
2458 | } | |
2459 | ||
79c97e97 | 2460 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2461 | if (err) |
2462 | goto out; | |
2463 | ||
fd2120ca | 2464 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2465 | if (!msg) |
2466 | goto out; | |
2467 | ||
2468 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2469 | dev, dst, next_hop, &pinfo) < 0) | |
2470 | goto out_free; | |
2471 | ||
134e6375 | 2472 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2473 | goto out; |
2474 | ||
2475 | out_free: | |
2476 | nlmsg_free(msg); | |
2ec600d6 | 2477 | out: |
79c97e97 | 2478 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2479 | dev_put(dev); |
3b85875a JB |
2480 | out_rtnl: |
2481 | rtnl_unlock(); | |
2482 | ||
2ec600d6 LCC |
2483 | return err; |
2484 | } | |
2485 | ||
2486 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2487 | { | |
79c97e97 | 2488 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2489 | int err; |
2490 | struct net_device *dev; | |
2491 | u8 *dst = NULL; | |
2492 | u8 *next_hop = NULL; | |
2493 | ||
2494 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2495 | return -EINVAL; | |
2496 | ||
2497 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2498 | return -EINVAL; | |
2499 | ||
2500 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2501 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2502 | ||
3b85875a JB |
2503 | rtnl_lock(); |
2504 | ||
463d0183 | 2505 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2506 | if (err) |
3b85875a | 2507 | goto out_rtnl; |
2ec600d6 | 2508 | |
79c97e97 | 2509 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2510 | err = -EOPNOTSUPP; |
2511 | goto out; | |
2512 | } | |
2513 | ||
eec60b03 JM |
2514 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2515 | err = -EOPNOTSUPP; | |
2516 | goto out; | |
2517 | } | |
2518 | ||
35a8efe1 JM |
2519 | if (!netif_running(dev)) { |
2520 | err = -ENETDOWN; | |
2521 | goto out; | |
2522 | } | |
2523 | ||
79c97e97 | 2524 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2525 | |
2526 | out: | |
79c97e97 | 2527 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2528 | dev_put(dev); |
3b85875a JB |
2529 | out_rtnl: |
2530 | rtnl_unlock(); | |
2531 | ||
2ec600d6 LCC |
2532 | return err; |
2533 | } | |
2534 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2535 | { | |
79c97e97 | 2536 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2537 | int err; |
2538 | struct net_device *dev; | |
2539 | u8 *dst = NULL; | |
2540 | u8 *next_hop = NULL; | |
2541 | ||
2542 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2543 | return -EINVAL; | |
2544 | ||
2545 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2546 | return -EINVAL; | |
2547 | ||
2548 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2549 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2550 | ||
3b85875a JB |
2551 | rtnl_lock(); |
2552 | ||
463d0183 | 2553 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2554 | if (err) |
3b85875a | 2555 | goto out_rtnl; |
2ec600d6 | 2556 | |
79c97e97 | 2557 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2558 | err = -EOPNOTSUPP; |
2559 | goto out; | |
2560 | } | |
2561 | ||
eec60b03 JM |
2562 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2563 | err = -EOPNOTSUPP; | |
2564 | goto out; | |
2565 | } | |
2566 | ||
35a8efe1 JM |
2567 | if (!netif_running(dev)) { |
2568 | err = -ENETDOWN; | |
2569 | goto out; | |
2570 | } | |
2571 | ||
79c97e97 | 2572 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2573 | |
2574 | out: | |
79c97e97 | 2575 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2576 | dev_put(dev); |
3b85875a JB |
2577 | out_rtnl: |
2578 | rtnl_unlock(); | |
2579 | ||
2ec600d6 LCC |
2580 | return err; |
2581 | } | |
2582 | ||
2583 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2584 | { | |
79c97e97 | 2585 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2586 | int err; |
2587 | struct net_device *dev; | |
2588 | u8 *dst = NULL; | |
2589 | ||
2590 | if (info->attrs[NL80211_ATTR_MAC]) | |
2591 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2592 | ||
3b85875a JB |
2593 | rtnl_lock(); |
2594 | ||
463d0183 | 2595 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2596 | if (err) |
3b85875a | 2597 | goto out_rtnl; |
2ec600d6 | 2598 | |
79c97e97 | 2599 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2600 | err = -EOPNOTSUPP; |
2601 | goto out; | |
2602 | } | |
2603 | ||
79c97e97 | 2604 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2605 | |
2606 | out: | |
79c97e97 | 2607 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2608 | dev_put(dev); |
3b85875a JB |
2609 | out_rtnl: |
2610 | rtnl_unlock(); | |
2611 | ||
2ec600d6 LCC |
2612 | return err; |
2613 | } | |
2614 | ||
9f1ba906 JM |
2615 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2616 | { | |
79c97e97 | 2617 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2618 | int err; |
2619 | struct net_device *dev; | |
2620 | struct bss_parameters params; | |
2621 | ||
2622 | memset(¶ms, 0, sizeof(params)); | |
2623 | /* default to not changing parameters */ | |
2624 | params.use_cts_prot = -1; | |
2625 | params.use_short_preamble = -1; | |
2626 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2627 | params.ap_isolate = -1; |
9f1ba906 JM |
2628 | |
2629 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2630 | params.use_cts_prot = | |
2631 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2632 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2633 | params.use_short_preamble = | |
2634 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2635 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2636 | params.use_short_slot_time = | |
2637 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2638 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2639 | params.basic_rates = | |
2640 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2641 | params.basic_rates_len = | |
2642 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2643 | } | |
fd8aaaf3 FF |
2644 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2645 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2646 | |
3b85875a JB |
2647 | rtnl_lock(); |
2648 | ||
463d0183 | 2649 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
9f1ba906 | 2650 | if (err) |
3b85875a | 2651 | goto out_rtnl; |
9f1ba906 | 2652 | |
79c97e97 | 2653 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2654 | err = -EOPNOTSUPP; |
2655 | goto out; | |
2656 | } | |
2657 | ||
eec60b03 JM |
2658 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2659 | err = -EOPNOTSUPP; | |
2660 | goto out; | |
2661 | } | |
2662 | ||
79c97e97 | 2663 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2664 | |
2665 | out: | |
79c97e97 | 2666 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2667 | dev_put(dev); |
3b85875a JB |
2668 | out_rtnl: |
2669 | rtnl_unlock(); | |
2670 | ||
9f1ba906 JM |
2671 | return err; |
2672 | } | |
2673 | ||
b54452b0 | 2674 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2675 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2676 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2677 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2678 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2679 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2680 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2681 | }; | |
2682 | ||
2683 | static int parse_reg_rule(struct nlattr *tb[], | |
2684 | struct ieee80211_reg_rule *reg_rule) | |
2685 | { | |
2686 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2687 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2688 | ||
2689 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2690 | return -EINVAL; | |
2691 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2692 | return -EINVAL; | |
2693 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2694 | return -EINVAL; | |
2695 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2696 | return -EINVAL; | |
2697 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2698 | return -EINVAL; | |
2699 | ||
2700 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2701 | ||
2702 | freq_range->start_freq_khz = | |
2703 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2704 | freq_range->end_freq_khz = | |
2705 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2706 | freq_range->max_bandwidth_khz = | |
2707 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2708 | ||
2709 | power_rule->max_eirp = | |
2710 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2711 | ||
2712 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2713 | power_rule->max_antenna_gain = | |
2714 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2715 | ||
2716 | return 0; | |
2717 | } | |
2718 | ||
2719 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2720 | { | |
2721 | int r; | |
2722 | char *data = NULL; | |
2723 | ||
80778f18 LR |
2724 | /* |
2725 | * You should only get this when cfg80211 hasn't yet initialized | |
2726 | * completely when built-in to the kernel right between the time | |
2727 | * window between nl80211_init() and regulatory_init(), if that is | |
2728 | * even possible. | |
2729 | */ | |
2730 | mutex_lock(&cfg80211_mutex); | |
2731 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2732 | mutex_unlock(&cfg80211_mutex); |
2733 | return -EINPROGRESS; | |
80778f18 | 2734 | } |
fe33eb39 | 2735 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2736 | |
fe33eb39 LR |
2737 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2738 | return -EINVAL; | |
b2e1b302 LR |
2739 | |
2740 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2741 | ||
fe33eb39 LR |
2742 | r = regulatory_hint_user(data); |
2743 | ||
b2e1b302 LR |
2744 | return r; |
2745 | } | |
2746 | ||
93da9cc1 | 2747 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2748 | struct genl_info *info) | |
2749 | { | |
79c97e97 | 2750 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2751 | struct mesh_config cur_params; |
2752 | int err; | |
2753 | struct net_device *dev; | |
2754 | void *hdr; | |
2755 | struct nlattr *pinfoattr; | |
2756 | struct sk_buff *msg; | |
2757 | ||
3b85875a JB |
2758 | rtnl_lock(); |
2759 | ||
93da9cc1 | 2760 | /* Look up our device */ |
463d0183 | 2761 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2762 | if (err) |
3b85875a | 2763 | goto out_rtnl; |
93da9cc1 | 2764 | |
79c97e97 | 2765 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2766 | err = -EOPNOTSUPP; |
2767 | goto out; | |
2768 | } | |
2769 | ||
93da9cc1 | 2770 | /* Get the mesh params */ |
79c97e97 | 2771 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2772 | if (err) |
2773 | goto out; | |
2774 | ||
2775 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2776 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2777 | if (!msg) { |
2778 | err = -ENOBUFS; | |
2779 | goto out; | |
2780 | } | |
2781 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2782 | NL80211_CMD_GET_MESH_PARAMS); | |
2783 | if (!hdr) | |
2784 | goto nla_put_failure; | |
2785 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2786 | if (!pinfoattr) | |
2787 | goto nla_put_failure; | |
2788 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2789 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2790 | cur_params.dot11MeshRetryTimeout); | |
2791 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2792 | cur_params.dot11MeshConfirmTimeout); | |
2793 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2794 | cur_params.dot11MeshHoldingTimeout); | |
2795 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2796 | cur_params.dot11MeshMaxPeerLinks); | |
2797 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2798 | cur_params.dot11MeshMaxRetries); | |
2799 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2800 | cur_params.dot11MeshTTL); | |
2801 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2802 | cur_params.auto_open_plinks); | |
2803 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2804 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2805 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2806 | cur_params.path_refresh_time); | |
2807 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2808 | cur_params.min_discovery_timeout); | |
2809 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2810 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2811 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2812 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2813 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2814 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2815 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2816 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2817 | nla_nest_end(msg, pinfoattr); |
2818 | genlmsg_end(msg, hdr); | |
134e6375 | 2819 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2820 | goto out; |
2821 | ||
3b85875a | 2822 | nla_put_failure: |
93da9cc1 | 2823 | genlmsg_cancel(msg, hdr); |
d080e275 | 2824 | nlmsg_free(msg); |
93da9cc1 | 2825 | err = -EMSGSIZE; |
3b85875a | 2826 | out: |
93da9cc1 | 2827 | /* Cleanup */ |
79c97e97 | 2828 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2829 | dev_put(dev); |
3b85875a JB |
2830 | out_rtnl: |
2831 | rtnl_unlock(); | |
2832 | ||
93da9cc1 | 2833 | return err; |
2834 | } | |
2835 | ||
2836 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2837 | do {\ | |
2838 | if (table[attr_num]) {\ | |
2839 | cfg.param = nla_fn(table[attr_num]); \ | |
2840 | mask |= (1 << (attr_num - 1)); \ | |
2841 | } \ | |
2842 | } while (0);\ | |
2843 | ||
b54452b0 | 2844 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2845 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2846 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2847 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2848 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2849 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2850 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2851 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2852 | ||
2853 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2854 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2855 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2856 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2857 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2858 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2859 | }; | |
2860 | ||
2861 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2862 | { | |
2863 | int err; | |
2864 | u32 mask; | |
79c97e97 | 2865 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2866 | struct net_device *dev; |
2867 | struct mesh_config cfg; | |
2868 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2869 | struct nlattr *parent_attr; | |
2870 | ||
2871 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2872 | if (!parent_attr) | |
2873 | return -EINVAL; | |
2874 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2875 | parent_attr, nl80211_meshconf_params_policy)) | |
2876 | return -EINVAL; | |
2877 | ||
3b85875a JB |
2878 | rtnl_lock(); |
2879 | ||
463d0183 | 2880 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2881 | if (err) |
3b85875a | 2882 | goto out_rtnl; |
93da9cc1 | 2883 | |
79c97e97 | 2884 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2885 | err = -EOPNOTSUPP; |
2886 | goto out; | |
2887 | } | |
2888 | ||
93da9cc1 | 2889 | /* This makes sure that there aren't more than 32 mesh config |
2890 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2891 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2892 | ||
2893 | /* Fill in the params struct */ | |
2894 | mask = 0; | |
2895 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2896 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2897 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2898 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2899 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2900 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2901 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2902 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2903 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2904 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2905 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2906 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2907 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2908 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2909 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2910 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2911 | nla_get_u8); | |
2912 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2913 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2914 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2915 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2916 | nla_get_u16); | |
2917 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2918 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2919 | nla_get_u32); | |
2920 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2921 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2922 | nla_get_u16); | |
2923 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2924 | dot11MeshHWMPnetDiameterTraversalTime, | |
2925 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2926 | nla_get_u16); | |
63c5723b RP |
2927 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2928 | dot11MeshHWMPRootMode, mask, | |
2929 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2930 | nla_get_u8); | |
93da9cc1 | 2931 | |
2932 | /* Apply changes */ | |
79c97e97 | 2933 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2934 | |
f3f92586 | 2935 | out: |
93da9cc1 | 2936 | /* cleanup */ |
79c97e97 | 2937 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2938 | dev_put(dev); |
3b85875a JB |
2939 | out_rtnl: |
2940 | rtnl_unlock(); | |
2941 | ||
93da9cc1 | 2942 | return err; |
2943 | } | |
2944 | ||
2945 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2946 | ||
f130347c LR |
2947 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2948 | { | |
2949 | struct sk_buff *msg; | |
2950 | void *hdr = NULL; | |
2951 | struct nlattr *nl_reg_rules; | |
2952 | unsigned int i; | |
2953 | int err = -EINVAL; | |
2954 | ||
a1794390 | 2955 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2956 | |
2957 | if (!cfg80211_regdomain) | |
2958 | goto out; | |
2959 | ||
fd2120ca | 2960 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2961 | if (!msg) { |
2962 | err = -ENOBUFS; | |
2963 | goto out; | |
2964 | } | |
2965 | ||
2966 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2967 | NL80211_CMD_GET_REG); | |
2968 | if (!hdr) | |
2969 | goto nla_put_failure; | |
2970 | ||
2971 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2972 | cfg80211_regdomain->alpha2); | |
2973 | ||
2974 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2975 | if (!nl_reg_rules) | |
2976 | goto nla_put_failure; | |
2977 | ||
2978 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2979 | struct nlattr *nl_reg_rule; | |
2980 | const struct ieee80211_reg_rule *reg_rule; | |
2981 | const struct ieee80211_freq_range *freq_range; | |
2982 | const struct ieee80211_power_rule *power_rule; | |
2983 | ||
2984 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2985 | freq_range = ®_rule->freq_range; | |
2986 | power_rule = ®_rule->power_rule; | |
2987 | ||
2988 | nl_reg_rule = nla_nest_start(msg, i); | |
2989 | if (!nl_reg_rule) | |
2990 | goto nla_put_failure; | |
2991 | ||
2992 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2993 | reg_rule->flags); | |
2994 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2995 | freq_range->start_freq_khz); | |
2996 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2997 | freq_range->end_freq_khz); | |
2998 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2999 | freq_range->max_bandwidth_khz); | |
3000 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
3001 | power_rule->max_antenna_gain); | |
3002 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
3003 | power_rule->max_eirp); | |
3004 | ||
3005 | nla_nest_end(msg, nl_reg_rule); | |
3006 | } | |
3007 | ||
3008 | nla_nest_end(msg, nl_reg_rules); | |
3009 | ||
3010 | genlmsg_end(msg, hdr); | |
134e6375 | 3011 | err = genlmsg_reply(msg, info); |
f130347c LR |
3012 | goto out; |
3013 | ||
3014 | nla_put_failure: | |
3015 | genlmsg_cancel(msg, hdr); | |
d080e275 | 3016 | nlmsg_free(msg); |
f130347c LR |
3017 | err = -EMSGSIZE; |
3018 | out: | |
a1794390 | 3019 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
3020 | return err; |
3021 | } | |
3022 | ||
b2e1b302 LR |
3023 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
3024 | { | |
3025 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
3026 | struct nlattr *nl_reg_rule; | |
3027 | char *alpha2 = NULL; | |
3028 | int rem_reg_rules = 0, r = 0; | |
3029 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
3030 | struct ieee80211_regdomain *rd = NULL; | |
3031 | ||
3032 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
3033 | return -EINVAL; | |
3034 | ||
3035 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
3036 | return -EINVAL; | |
3037 | ||
3038 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3039 | ||
3040 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
3041 | rem_reg_rules) { | |
3042 | num_rules++; | |
3043 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 3044 | return -EINVAL; |
b2e1b302 LR |
3045 | } |
3046 | ||
61405e97 LR |
3047 | mutex_lock(&cfg80211_mutex); |
3048 | ||
d0e18f83 LR |
3049 | if (!reg_is_valid_request(alpha2)) { |
3050 | r = -EINVAL; | |
3051 | goto bad_reg; | |
3052 | } | |
b2e1b302 LR |
3053 | |
3054 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
3055 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
3056 | ||
3057 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
3058 | if (!rd) { |
3059 | r = -ENOMEM; | |
3060 | goto bad_reg; | |
3061 | } | |
b2e1b302 LR |
3062 | |
3063 | rd->n_reg_rules = num_rules; | |
3064 | rd->alpha2[0] = alpha2[0]; | |
3065 | rd->alpha2[1] = alpha2[1]; | |
3066 | ||
3067 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
3068 | rem_reg_rules) { | |
3069 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
3070 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
3071 | reg_rule_policy); | |
3072 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
3073 | if (r) | |
3074 | goto bad_reg; | |
3075 | ||
3076 | rule_idx++; | |
3077 | ||
d0e18f83 LR |
3078 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
3079 | r = -EINVAL; | |
b2e1b302 | 3080 | goto bad_reg; |
d0e18f83 | 3081 | } |
b2e1b302 LR |
3082 | } |
3083 | ||
3084 | BUG_ON(rule_idx != num_rules); | |
3085 | ||
b2e1b302 | 3086 | r = set_regdom(rd); |
61405e97 | 3087 | |
a1794390 | 3088 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 3089 | |
b2e1b302 LR |
3090 | return r; |
3091 | ||
d2372b31 | 3092 | bad_reg: |
61405e97 | 3093 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 3094 | kfree(rd); |
d0e18f83 | 3095 | return r; |
b2e1b302 LR |
3096 | } |
3097 | ||
83f5e2cf JB |
3098 | static int validate_scan_freqs(struct nlattr *freqs) |
3099 | { | |
3100 | struct nlattr *attr1, *attr2; | |
3101 | int n_channels = 0, tmp1, tmp2; | |
3102 | ||
3103 | nla_for_each_nested(attr1, freqs, tmp1) { | |
3104 | n_channels++; | |
3105 | /* | |
3106 | * Some hardware has a limited channel list for | |
3107 | * scanning, and it is pretty much nonsensical | |
3108 | * to scan for a channel twice, so disallow that | |
3109 | * and don't require drivers to check that the | |
3110 | * channel list they get isn't longer than what | |
3111 | * they can scan, as long as they can scan all | |
3112 | * the channels they registered at once. | |
3113 | */ | |
3114 | nla_for_each_nested(attr2, freqs, tmp2) | |
3115 | if (attr1 != attr2 && | |
3116 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
3117 | return 0; | |
3118 | } | |
3119 | ||
3120 | return n_channels; | |
3121 | } | |
3122 | ||
2a519311 JB |
3123 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
3124 | { | |
79c97e97 | 3125 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
3126 | struct net_device *dev; |
3127 | struct cfg80211_scan_request *request; | |
3128 | struct cfg80211_ssid *ssid; | |
3129 | struct ieee80211_channel *channel; | |
3130 | struct nlattr *attr; | |
3131 | struct wiphy *wiphy; | |
83f5e2cf | 3132 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 3133 | enum ieee80211_band band; |
70692ad2 | 3134 | size_t ie_len; |
2a519311 | 3135 | |
f4a11bb0 JB |
3136 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3137 | return -EINVAL; | |
3138 | ||
3b85875a JB |
3139 | rtnl_lock(); |
3140 | ||
463d0183 | 3141 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2a519311 | 3142 | if (err) |
3b85875a | 3143 | goto out_rtnl; |
2a519311 | 3144 | |
79c97e97 | 3145 | wiphy = &rdev->wiphy; |
2a519311 | 3146 | |
79c97e97 | 3147 | if (!rdev->ops->scan) { |
2a519311 JB |
3148 | err = -EOPNOTSUPP; |
3149 | goto out; | |
3150 | } | |
3151 | ||
35a8efe1 JM |
3152 | if (!netif_running(dev)) { |
3153 | err = -ENETDOWN; | |
3154 | goto out; | |
3155 | } | |
3156 | ||
79c97e97 | 3157 | if (rdev->scan_req) { |
2a519311 | 3158 | err = -EBUSY; |
3b85875a | 3159 | goto out; |
2a519311 JB |
3160 | } |
3161 | ||
3162 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
3163 | n_channels = validate_scan_freqs( |
3164 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
3165 | if (!n_channels) { |
3166 | err = -EINVAL; | |
3b85875a | 3167 | goto out; |
2a519311 JB |
3168 | } |
3169 | } else { | |
83f5e2cf JB |
3170 | n_channels = 0; |
3171 | ||
2a519311 JB |
3172 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
3173 | if (wiphy->bands[band]) | |
3174 | n_channels += wiphy->bands[band]->n_channels; | |
3175 | } | |
3176 | ||
3177 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3178 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
3179 | n_ssids++; | |
3180 | ||
3181 | if (n_ssids > wiphy->max_scan_ssids) { | |
3182 | err = -EINVAL; | |
3b85875a | 3183 | goto out; |
2a519311 JB |
3184 | } |
3185 | ||
70692ad2 JM |
3186 | if (info->attrs[NL80211_ATTR_IE]) |
3187 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3188 | else | |
3189 | ie_len = 0; | |
3190 | ||
18a83659 JB |
3191 | if (ie_len > wiphy->max_scan_ie_len) { |
3192 | err = -EINVAL; | |
3193 | goto out; | |
3194 | } | |
3195 | ||
2a519311 JB |
3196 | request = kzalloc(sizeof(*request) |
3197 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3198 | + sizeof(channel) * n_channels |
3199 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3200 | if (!request) { |
3201 | err = -ENOMEM; | |
3b85875a | 3202 | goto out; |
2a519311 JB |
3203 | } |
3204 | ||
2a519311 | 3205 | if (n_ssids) |
5ba63533 | 3206 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3207 | request->n_ssids = n_ssids; |
70692ad2 JM |
3208 | if (ie_len) { |
3209 | if (request->ssids) | |
3210 | request->ie = (void *)(request->ssids + n_ssids); | |
3211 | else | |
3212 | request->ie = (void *)(request->channels + n_channels); | |
3213 | } | |
2a519311 | 3214 | |
584991dc | 3215 | i = 0; |
2a519311 JB |
3216 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3217 | /* user specified, bail out if channel not found */ | |
2a519311 | 3218 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3219 | struct ieee80211_channel *chan; |
3220 | ||
3221 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3222 | ||
3223 | if (!chan) { | |
2a519311 JB |
3224 | err = -EINVAL; |
3225 | goto out_free; | |
3226 | } | |
584991dc JB |
3227 | |
3228 | /* ignore disabled channels */ | |
3229 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3230 | continue; | |
3231 | ||
3232 | request->channels[i] = chan; | |
2a519311 JB |
3233 | i++; |
3234 | } | |
3235 | } else { | |
3236 | /* all channels */ | |
2a519311 JB |
3237 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3238 | int j; | |
3239 | if (!wiphy->bands[band]) | |
3240 | continue; | |
3241 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3242 | struct ieee80211_channel *chan; |
3243 | ||
3244 | chan = &wiphy->bands[band]->channels[j]; | |
3245 | ||
3246 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3247 | continue; | |
3248 | ||
3249 | request->channels[i] = chan; | |
2a519311 JB |
3250 | i++; |
3251 | } | |
3252 | } | |
3253 | } | |
3254 | ||
584991dc JB |
3255 | if (!i) { |
3256 | err = -EINVAL; | |
3257 | goto out_free; | |
3258 | } | |
3259 | ||
3260 | request->n_channels = i; | |
3261 | ||
2a519311 JB |
3262 | i = 0; |
3263 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3264 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3265 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3266 | err = -EINVAL; | |
3267 | goto out_free; | |
3268 | } | |
3269 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3270 | request->ssids[i].ssid_len = nla_len(attr); | |
3271 | i++; | |
3272 | } | |
3273 | } | |
3274 | ||
70692ad2 JM |
3275 | if (info->attrs[NL80211_ATTR_IE]) { |
3276 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3277 | memcpy((void *)request->ie, |
3278 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3279 | request->ie_len); |
3280 | } | |
3281 | ||
463d0183 | 3282 | request->dev = dev; |
79c97e97 | 3283 | request->wiphy = &rdev->wiphy; |
2a519311 | 3284 | |
79c97e97 JB |
3285 | rdev->scan_req = request; |
3286 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3287 | |
463d0183 | 3288 | if (!err) { |
79c97e97 | 3289 | nl80211_send_scan_start(rdev, dev); |
463d0183 JB |
3290 | dev_hold(dev); |
3291 | } | |
a538e2d5 | 3292 | |
2a519311 JB |
3293 | out_free: |
3294 | if (err) { | |
79c97e97 | 3295 | rdev->scan_req = NULL; |
2a519311 JB |
3296 | kfree(request); |
3297 | } | |
2a519311 | 3298 | out: |
79c97e97 | 3299 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3300 | dev_put(dev); |
3b85875a JB |
3301 | out_rtnl: |
3302 | rtnl_unlock(); | |
3303 | ||
2a519311 JB |
3304 | return err; |
3305 | } | |
3306 | ||
3307 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3308 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3309 | struct wireless_dev *wdev, |
3310 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3311 | { |
48ab905d | 3312 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3313 | void *hdr; |
3314 | struct nlattr *bss; | |
48ab905d JB |
3315 | int i; |
3316 | ||
3317 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3318 | |
3319 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3320 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3321 | if (!hdr) | |
3322 | return -1; | |
3323 | ||
f5ea9120 | 3324 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3325 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3326 | |
3327 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3328 | if (!bss) | |
3329 | goto nla_put_failure; | |
3330 | if (!is_zero_ether_addr(res->bssid)) | |
3331 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3332 | if (res->information_elements && res->len_information_elements) | |
3333 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3334 | res->len_information_elements, | |
3335 | res->information_elements); | |
34a6eddb JM |
3336 | if (res->beacon_ies && res->len_beacon_ies && |
3337 | res->beacon_ies != res->information_elements) | |
3338 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3339 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3340 | if (res->tsf) |
3341 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3342 | if (res->beacon_interval) | |
3343 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3344 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3345 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3346 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3347 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3348 | |
77965c97 | 3349 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3350 | case CFG80211_SIGNAL_TYPE_MBM: |
3351 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3352 | break; | |
3353 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3354 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3355 | break; | |
3356 | default: | |
3357 | break; | |
3358 | } | |
3359 | ||
48ab905d JB |
3360 | switch (wdev->iftype) { |
3361 | case NL80211_IFTYPE_STATION: | |
3362 | if (intbss == wdev->current_bss) | |
3363 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3364 | NL80211_BSS_STATUS_ASSOCIATED); | |
3365 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3366 | if (intbss != wdev->auth_bsses[i]) | |
3367 | continue; | |
3368 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3369 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3370 | break; | |
3371 | } | |
3372 | break; | |
3373 | case NL80211_IFTYPE_ADHOC: | |
3374 | if (intbss == wdev->current_bss) | |
3375 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3376 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3377 | break; | |
3378 | default: | |
3379 | break; | |
3380 | } | |
3381 | ||
2a519311 JB |
3382 | nla_nest_end(msg, bss); |
3383 | ||
3384 | return genlmsg_end(msg, hdr); | |
3385 | ||
3386 | nla_put_failure: | |
3387 | genlmsg_cancel(msg, hdr); | |
3388 | return -EMSGSIZE; | |
3389 | } | |
3390 | ||
3391 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3392 | struct netlink_callback *cb) | |
3393 | { | |
48ab905d JB |
3394 | struct cfg80211_registered_device *rdev; |
3395 | struct net_device *dev; | |
2a519311 | 3396 | struct cfg80211_internal_bss *scan; |
48ab905d | 3397 | struct wireless_dev *wdev; |
2a519311 JB |
3398 | int ifidx = cb->args[0]; |
3399 | int start = cb->args[1], idx = 0; | |
3400 | int err; | |
3401 | ||
a043897a HS |
3402 | if (!ifidx) |
3403 | ifidx = nl80211_get_ifidx(cb); | |
3404 | if (ifidx < 0) | |
3405 | return ifidx; | |
3406 | cb->args[0] = ifidx; | |
2a519311 | 3407 | |
463d0183 | 3408 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3409 | if (!dev) |
2a519311 JB |
3410 | return -ENODEV; |
3411 | ||
463d0183 | 3412 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3413 | if (IS_ERR(rdev)) { |
3414 | err = PTR_ERR(rdev); | |
2a519311 JB |
3415 | goto out_put_netdev; |
3416 | } | |
3417 | ||
48ab905d | 3418 | wdev = dev->ieee80211_ptr; |
2a519311 | 3419 | |
48ab905d JB |
3420 | wdev_lock(wdev); |
3421 | spin_lock_bh(&rdev->bss_lock); | |
3422 | cfg80211_bss_expire(rdev); | |
3423 | ||
3424 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3425 | if (++idx <= start) |
3426 | continue; | |
3427 | if (nl80211_send_bss(skb, | |
3428 | NETLINK_CB(cb->skb).pid, | |
3429 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3430 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3431 | idx--; |
3432 | goto out; | |
3433 | } | |
3434 | } | |
3435 | ||
3436 | out: | |
48ab905d JB |
3437 | spin_unlock_bh(&rdev->bss_lock); |
3438 | wdev_unlock(wdev); | |
2a519311 JB |
3439 | |
3440 | cb->args[1] = idx; | |
3441 | err = skb->len; | |
48ab905d | 3442 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3443 | out_put_netdev: |
48ab905d | 3444 | dev_put(dev); |
2a519311 JB |
3445 | |
3446 | return err; | |
3447 | } | |
3448 | ||
61fa713c HS |
3449 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3450 | int flags, struct net_device *dev, | |
3451 | struct survey_info *survey) | |
3452 | { | |
3453 | void *hdr; | |
3454 | struct nlattr *infoattr; | |
3455 | ||
3456 | /* Survey without a channel doesn't make sense */ | |
3457 | if (!survey->channel) | |
3458 | return -EINVAL; | |
3459 | ||
3460 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3461 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3462 | if (!hdr) | |
3463 | return -ENOMEM; | |
3464 | ||
3465 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3466 | ||
3467 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3468 | if (!infoattr) | |
3469 | goto nla_put_failure; | |
3470 | ||
3471 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3472 | survey->channel->center_freq); | |
3473 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3474 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3475 | survey->noise); | |
3476 | ||
3477 | nla_nest_end(msg, infoattr); | |
3478 | ||
3479 | return genlmsg_end(msg, hdr); | |
3480 | ||
3481 | nla_put_failure: | |
3482 | genlmsg_cancel(msg, hdr); | |
3483 | return -EMSGSIZE; | |
3484 | } | |
3485 | ||
3486 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3487 | struct netlink_callback *cb) | |
3488 | { | |
3489 | struct survey_info survey; | |
3490 | struct cfg80211_registered_device *dev; | |
3491 | struct net_device *netdev; | |
3492 | int ifidx = cb->args[0]; | |
3493 | int survey_idx = cb->args[1]; | |
3494 | int res; | |
3495 | ||
3496 | if (!ifidx) | |
3497 | ifidx = nl80211_get_ifidx(cb); | |
3498 | if (ifidx < 0) | |
3499 | return ifidx; | |
3500 | cb->args[0] = ifidx; | |
3501 | ||
3502 | rtnl_lock(); | |
3503 | ||
3504 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3505 | if (!netdev) { | |
3506 | res = -ENODEV; | |
3507 | goto out_rtnl; | |
3508 | } | |
3509 | ||
3510 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3511 | if (IS_ERR(dev)) { | |
3512 | res = PTR_ERR(dev); | |
3513 | goto out_rtnl; | |
3514 | } | |
3515 | ||
3516 | if (!dev->ops->dump_survey) { | |
3517 | res = -EOPNOTSUPP; | |
3518 | goto out_err; | |
3519 | } | |
3520 | ||
3521 | while (1) { | |
3522 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3523 | &survey); | |
3524 | if (res == -ENOENT) | |
3525 | break; | |
3526 | if (res) | |
3527 | goto out_err; | |
3528 | ||
3529 | if (nl80211_send_survey(skb, | |
3530 | NETLINK_CB(cb->skb).pid, | |
3531 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3532 | netdev, | |
3533 | &survey) < 0) | |
3534 | goto out; | |
3535 | survey_idx++; | |
3536 | } | |
3537 | ||
3538 | out: | |
3539 | cb->args[1] = survey_idx; | |
3540 | res = skb->len; | |
3541 | out_err: | |
3542 | cfg80211_unlock_rdev(dev); | |
3543 | out_rtnl: | |
3544 | rtnl_unlock(); | |
3545 | ||
3546 | return res; | |
3547 | } | |
3548 | ||
255e737e JM |
3549 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3550 | { | |
b23aa676 SO |
3551 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3552 | } | |
3553 | ||
3554 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3555 | { | |
3556 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3557 | NL80211_WPA_VERSION_2)); | |
3558 | } | |
3559 | ||
3560 | static bool nl80211_valid_akm_suite(u32 akm) | |
3561 | { | |
3562 | return akm == WLAN_AKM_SUITE_8021X || | |
3563 | akm == WLAN_AKM_SUITE_PSK; | |
3564 | } | |
3565 | ||
3566 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3567 | { | |
3568 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3569 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3570 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3571 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3572 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3573 | } |
3574 | ||
b23aa676 | 3575 | |
636a5d36 JM |
3576 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3577 | { | |
79c97e97 | 3578 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3579 | struct net_device *dev; |
19957bb3 JB |
3580 | struct ieee80211_channel *chan; |
3581 | const u8 *bssid, *ssid, *ie = NULL; | |
3582 | int err, ssid_len, ie_len = 0; | |
3583 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3584 | struct key_parse key; |
d5cdfacb | 3585 | bool local_state_change; |
636a5d36 | 3586 | |
f4a11bb0 JB |
3587 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3588 | return -EINVAL; | |
3589 | ||
3590 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3591 | return -EINVAL; | |
3592 | ||
1778092e JM |
3593 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3594 | return -EINVAL; | |
3595 | ||
19957bb3 JB |
3596 | if (!info->attrs[NL80211_ATTR_SSID]) |
3597 | return -EINVAL; | |
3598 | ||
3599 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3600 | return -EINVAL; | |
3601 | ||
fffd0934 JB |
3602 | err = nl80211_parse_key(info, &key); |
3603 | if (err) | |
3604 | return err; | |
3605 | ||
3606 | if (key.idx >= 0) { | |
3607 | if (!key.p.key || !key.p.key_len) | |
3608 | return -EINVAL; | |
3609 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3610 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3611 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3612 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3613 | return -EINVAL; | |
3614 | if (key.idx > 4) | |
3615 | return -EINVAL; | |
3616 | } else { | |
3617 | key.p.key_len = 0; | |
3618 | key.p.key = NULL; | |
3619 | } | |
3620 | ||
636a5d36 JM |
3621 | rtnl_lock(); |
3622 | ||
463d0183 | 3623 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3624 | if (err) |
3625 | goto unlock_rtnl; | |
3626 | ||
afea0b7a JB |
3627 | if (key.idx >= 0) { |
3628 | int i; | |
3629 | bool ok = false; | |
3630 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3631 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3632 | ok = true; | |
3633 | break; | |
3634 | } | |
3635 | } | |
3636 | if (!ok) { | |
3637 | err = -EINVAL; | |
3638 | goto out; | |
3639 | } | |
3640 | } | |
3641 | ||
79c97e97 | 3642 | if (!rdev->ops->auth) { |
636a5d36 JM |
3643 | err = -EOPNOTSUPP; |
3644 | goto out; | |
3645 | } | |
3646 | ||
eec60b03 JM |
3647 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3648 | err = -EOPNOTSUPP; | |
3649 | goto out; | |
3650 | } | |
3651 | ||
35a8efe1 JM |
3652 | if (!netif_running(dev)) { |
3653 | err = -ENETDOWN; | |
3654 | goto out; | |
3655 | } | |
3656 | ||
19957bb3 | 3657 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3658 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3659 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3660 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3661 | err = -EINVAL; | |
3662 | goto out; | |
636a5d36 JM |
3663 | } |
3664 | ||
19957bb3 JB |
3665 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3666 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3667 | |
3668 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3669 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3670 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3671 | } |
3672 | ||
19957bb3 JB |
3673 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3674 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3675 | err = -EINVAL; |
3676 | goto out; | |
636a5d36 JM |
3677 | } |
3678 | ||
d5cdfacb JM |
3679 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3680 | ||
79c97e97 | 3681 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 | 3682 | ssid, ssid_len, ie, ie_len, |
d5cdfacb JM |
3683 | key.p.key, key.p.key_len, key.idx, |
3684 | local_state_change); | |
636a5d36 JM |
3685 | |
3686 | out: | |
79c97e97 | 3687 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3688 | dev_put(dev); |
3689 | unlock_rtnl: | |
3690 | rtnl_unlock(); | |
3691 | return err; | |
3692 | } | |
3693 | ||
b23aa676 | 3694 | static int nl80211_crypto_settings(struct genl_info *info, |
3dc27d25 JB |
3695 | struct cfg80211_crypto_settings *settings, |
3696 | int cipher_limit) | |
b23aa676 | 3697 | { |
c0b2bbd8 JB |
3698 | memset(settings, 0, sizeof(*settings)); |
3699 | ||
b23aa676 SO |
3700 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3701 | ||
3702 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { | |
3703 | void *data; | |
3704 | int len, i; | |
3705 | ||
3706 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3707 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3708 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3709 | ||
3710 | if (len % sizeof(u32)) | |
3711 | return -EINVAL; | |
3712 | ||
3dc27d25 | 3713 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3714 | return -EINVAL; |
3715 | ||
3716 | memcpy(settings->ciphers_pairwise, data, len); | |
3717 | ||
3718 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3719 | if (!nl80211_valid_cipher_suite( | |
3720 | settings->ciphers_pairwise[i])) | |
3721 | return -EINVAL; | |
3722 | } | |
3723 | ||
3724 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3725 | settings->cipher_group = | |
3726 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3727 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3728 | return -EINVAL; | |
3729 | } | |
3730 | ||
3731 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3732 | settings->wpa_versions = | |
3733 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3734 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3735 | return -EINVAL; | |
3736 | } | |
3737 | ||
3738 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3739 | void *data; | |
3740 | int len, i; | |
3741 | ||
3742 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3743 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3744 | settings->n_akm_suites = len / sizeof(u32); | |
3745 | ||
3746 | if (len % sizeof(u32)) | |
3747 | return -EINVAL; | |
3748 | ||
3749 | memcpy(settings->akm_suites, data, len); | |
3750 | ||
3751 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3752 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3753 | return -EINVAL; | |
3754 | } | |
3755 | ||
3756 | return 0; | |
3757 | } | |
3758 | ||
636a5d36 JM |
3759 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3760 | { | |
19957bb3 | 3761 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3762 | struct net_device *dev; |
19957bb3 | 3763 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3764 | struct ieee80211_channel *chan; |
3e5d7649 | 3765 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3766 | int err, ssid_len, ie_len = 0; |
3767 | bool use_mfp = false; | |
636a5d36 | 3768 | |
f4a11bb0 JB |
3769 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3770 | return -EINVAL; | |
3771 | ||
3772 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3773 | !info->attrs[NL80211_ATTR_SSID] || |
3774 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3775 | return -EINVAL; |
3776 | ||
636a5d36 JM |
3777 | rtnl_lock(); |
3778 | ||
463d0183 | 3779 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3780 | if (err) |
3781 | goto unlock_rtnl; | |
3782 | ||
19957bb3 | 3783 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3784 | err = -EOPNOTSUPP; |
3785 | goto out; | |
3786 | } | |
3787 | ||
eec60b03 JM |
3788 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3789 | err = -EOPNOTSUPP; | |
3790 | goto out; | |
3791 | } | |
3792 | ||
35a8efe1 JM |
3793 | if (!netif_running(dev)) { |
3794 | err = -ENETDOWN; | |
3795 | goto out; | |
3796 | } | |
3797 | ||
19957bb3 | 3798 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3799 | |
19957bb3 JB |
3800 | chan = ieee80211_get_channel(&rdev->wiphy, |
3801 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3802 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3803 | err = -EINVAL; | |
3804 | goto out; | |
636a5d36 JM |
3805 | } |
3806 | ||
19957bb3 JB |
3807 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3808 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3809 | |
3810 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3811 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3812 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3813 | } |
3814 | ||
dc6382ce | 3815 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3816 | enum nl80211_mfp mfp = |
dc6382ce | 3817 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3818 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3819 | use_mfp = true; |
4f5dadce | 3820 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3821 | err = -EINVAL; |
3822 | goto out; | |
3823 | } | |
3824 | } | |
3825 | ||
3e5d7649 JB |
3826 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3827 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3828 | ||
3dc27d25 | 3829 | err = nl80211_crypto_settings(info, &crypto, 1); |
b23aa676 | 3830 | if (!err) |
3e5d7649 JB |
3831 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3832 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3833 | &crypto); |
636a5d36 JM |
3834 | |
3835 | out: | |
4d0c8aea | 3836 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3837 | dev_put(dev); |
3838 | unlock_rtnl: | |
3839 | rtnl_unlock(); | |
3840 | return err; | |
3841 | } | |
3842 | ||
3843 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3844 | { | |
79c97e97 | 3845 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3846 | struct net_device *dev; |
19957bb3 JB |
3847 | const u8 *ie = NULL, *bssid; |
3848 | int err, ie_len = 0; | |
3849 | u16 reason_code; | |
d5cdfacb | 3850 | bool local_state_change; |
636a5d36 | 3851 | |
f4a11bb0 JB |
3852 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3853 | return -EINVAL; | |
3854 | ||
3855 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3856 | return -EINVAL; | |
3857 | ||
3858 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3859 | return -EINVAL; | |
3860 | ||
636a5d36 JM |
3861 | rtnl_lock(); |
3862 | ||
463d0183 | 3863 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3864 | if (err) |
3865 | goto unlock_rtnl; | |
3866 | ||
79c97e97 | 3867 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3868 | err = -EOPNOTSUPP; |
3869 | goto out; | |
3870 | } | |
3871 | ||
eec60b03 JM |
3872 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3873 | err = -EOPNOTSUPP; | |
3874 | goto out; | |
3875 | } | |
3876 | ||
35a8efe1 JM |
3877 | if (!netif_running(dev)) { |
3878 | err = -ENETDOWN; | |
3879 | goto out; | |
3880 | } | |
3881 | ||
19957bb3 | 3882 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3883 | |
19957bb3 JB |
3884 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3885 | if (reason_code == 0) { | |
f4a11bb0 JB |
3886 | /* Reason Code 0 is reserved */ |
3887 | err = -EINVAL; | |
3888 | goto out; | |
255e737e | 3889 | } |
636a5d36 JM |
3890 | |
3891 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3892 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3893 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3894 | } |
3895 | ||
d5cdfacb JM |
3896 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3897 | ||
3898 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
3899 | local_state_change); | |
636a5d36 JM |
3900 | |
3901 | out: | |
79c97e97 | 3902 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3903 | dev_put(dev); |
3904 | unlock_rtnl: | |
3905 | rtnl_unlock(); | |
3906 | return err; | |
3907 | } | |
3908 | ||
3909 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3910 | { | |
79c97e97 | 3911 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3912 | struct net_device *dev; |
19957bb3 JB |
3913 | const u8 *ie = NULL, *bssid; |
3914 | int err, ie_len = 0; | |
3915 | u16 reason_code; | |
d5cdfacb | 3916 | bool local_state_change; |
636a5d36 | 3917 | |
f4a11bb0 JB |
3918 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3919 | return -EINVAL; | |
3920 | ||
3921 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3922 | return -EINVAL; | |
3923 | ||
3924 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3925 | return -EINVAL; | |
3926 | ||
636a5d36 JM |
3927 | rtnl_lock(); |
3928 | ||
463d0183 | 3929 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3930 | if (err) |
3931 | goto unlock_rtnl; | |
3932 | ||
79c97e97 | 3933 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3934 | err = -EOPNOTSUPP; |
3935 | goto out; | |
3936 | } | |
3937 | ||
eec60b03 JM |
3938 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3939 | err = -EOPNOTSUPP; | |
3940 | goto out; | |
3941 | } | |
3942 | ||
35a8efe1 JM |
3943 | if (!netif_running(dev)) { |
3944 | err = -ENETDOWN; | |
3945 | goto out; | |
3946 | } | |
3947 | ||
19957bb3 | 3948 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3949 | |
19957bb3 JB |
3950 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3951 | if (reason_code == 0) { | |
f4a11bb0 JB |
3952 | /* Reason Code 0 is reserved */ |
3953 | err = -EINVAL; | |
3954 | goto out; | |
255e737e | 3955 | } |
636a5d36 JM |
3956 | |
3957 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3958 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3959 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3960 | } |
3961 | ||
d5cdfacb JM |
3962 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3963 | ||
3964 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
3965 | local_state_change); | |
636a5d36 JM |
3966 | |
3967 | out: | |
79c97e97 | 3968 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3969 | dev_put(dev); |
3970 | unlock_rtnl: | |
3971 | rtnl_unlock(); | |
3972 | return err; | |
3973 | } | |
3974 | ||
04a773ad JB |
3975 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3976 | { | |
79c97e97 | 3977 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3978 | struct net_device *dev; |
3979 | struct cfg80211_ibss_params ibss; | |
3980 | struct wiphy *wiphy; | |
fffd0934 | 3981 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3982 | int err; |
3983 | ||
8e30bc55 JB |
3984 | memset(&ibss, 0, sizeof(ibss)); |
3985 | ||
04a773ad JB |
3986 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3987 | return -EINVAL; | |
3988 | ||
3989 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3990 | !info->attrs[NL80211_ATTR_SSID] || | |
3991 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3992 | return -EINVAL; | |
3993 | ||
8e30bc55 JB |
3994 | ibss.beacon_interval = 100; |
3995 | ||
3996 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3997 | ibss.beacon_interval = | |
3998 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3999 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
4000 | return -EINVAL; | |
4001 | } | |
4002 | ||
04a773ad JB |
4003 | rtnl_lock(); |
4004 | ||
463d0183 | 4005 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
4006 | if (err) |
4007 | goto unlock_rtnl; | |
4008 | ||
79c97e97 | 4009 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
4010 | err = -EOPNOTSUPP; |
4011 | goto out; | |
4012 | } | |
4013 | ||
4014 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
4015 | err = -EOPNOTSUPP; | |
4016 | goto out; | |
4017 | } | |
4018 | ||
4019 | if (!netif_running(dev)) { | |
4020 | err = -ENETDOWN; | |
4021 | goto out; | |
4022 | } | |
4023 | ||
79c97e97 | 4024 | wiphy = &rdev->wiphy; |
04a773ad JB |
4025 | |
4026 | if (info->attrs[NL80211_ATTR_MAC]) | |
4027 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4028 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4029 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4030 | ||
4031 | if (info->attrs[NL80211_ATTR_IE]) { | |
4032 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4033 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4034 | } | |
4035 | ||
4036 | ibss.channel = ieee80211_get_channel(wiphy, | |
4037 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4038 | if (!ibss.channel || | |
4039 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4040 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4041 | err = -EINVAL; | |
4042 | goto out; | |
4043 | } | |
4044 | ||
4045 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
4046 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
4047 | ||
4048 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
4049 | connkeys = nl80211_parse_connkeys(rdev, | |
4050 | info->attrs[NL80211_ATTR_KEYS]); | |
4051 | if (IS_ERR(connkeys)) { | |
4052 | err = PTR_ERR(connkeys); | |
4053 | connkeys = NULL; | |
4054 | goto out; | |
4055 | } | |
4056 | } | |
04a773ad | 4057 | |
fbd2c8dc TP |
4058 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4059 | u8 *rates = | |
4060 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4061 | int n_rates = | |
4062 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4063 | struct ieee80211_supported_band *sband = | |
4064 | wiphy->bands[ibss.channel->band]; | |
4065 | int i, j; | |
4066 | ||
4067 | if (n_rates == 0) { | |
4068 | err = -EINVAL; | |
4069 | goto out; | |
4070 | } | |
4071 | ||
4072 | for (i = 0; i < n_rates; i++) { | |
4073 | int rate = (rates[i] & 0x7f) * 5; | |
4074 | bool found = false; | |
4075 | ||
4076 | for (j = 0; j < sband->n_bitrates; j++) { | |
4077 | if (sband->bitrates[j].bitrate == rate) { | |
4078 | found = true; | |
4079 | ibss.basic_rates |= BIT(j); | |
4080 | break; | |
4081 | } | |
4082 | } | |
4083 | if (!found) { | |
4084 | err = -EINVAL; | |
4085 | goto out; | |
4086 | } | |
4087 | } | |
4088 | } else { | |
4089 | /* | |
4090 | * If no rates were explicitly configured, | |
4091 | * use the mandatory rate set for 11b or | |
4092 | * 11a for maximum compatibility. | |
4093 | */ | |
4094 | struct ieee80211_supported_band *sband = | |
4095 | wiphy->bands[ibss.channel->band]; | |
4096 | int j; | |
4097 | u32 flag = ibss.channel->band == IEEE80211_BAND_5GHZ ? | |
4098 | IEEE80211_RATE_MANDATORY_A : | |
4099 | IEEE80211_RATE_MANDATORY_B; | |
4100 | ||
4101 | for (j = 0; j < sband->n_bitrates; j++) { | |
4102 | if (sband->bitrates[j].flags & flag) | |
4103 | ibss.basic_rates |= BIT(j); | |
4104 | } | |
4105 | } | |
4106 | ||
fffd0934 | 4107 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
4108 | |
4109 | out: | |
79c97e97 | 4110 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
4111 | dev_put(dev); |
4112 | unlock_rtnl: | |
fffd0934 JB |
4113 | if (err) |
4114 | kfree(connkeys); | |
04a773ad JB |
4115 | rtnl_unlock(); |
4116 | return err; | |
4117 | } | |
4118 | ||
4119 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
4120 | { | |
79c97e97 | 4121 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
4122 | struct net_device *dev; |
4123 | int err; | |
4124 | ||
4125 | rtnl_lock(); | |
4126 | ||
463d0183 | 4127 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
4128 | if (err) |
4129 | goto unlock_rtnl; | |
4130 | ||
79c97e97 | 4131 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
4132 | err = -EOPNOTSUPP; |
4133 | goto out; | |
4134 | } | |
4135 | ||
4136 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
4137 | err = -EOPNOTSUPP; | |
4138 | goto out; | |
4139 | } | |
4140 | ||
4141 | if (!netif_running(dev)) { | |
4142 | err = -ENETDOWN; | |
4143 | goto out; | |
4144 | } | |
4145 | ||
79c97e97 | 4146 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
4147 | |
4148 | out: | |
79c97e97 | 4149 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
4150 | dev_put(dev); |
4151 | unlock_rtnl: | |
4152 | rtnl_unlock(); | |
4153 | return err; | |
4154 | } | |
4155 | ||
aff89a9b JB |
4156 | #ifdef CONFIG_NL80211_TESTMODE |
4157 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
4158 | .name = "testmode", | |
4159 | }; | |
4160 | ||
4161 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
4162 | { | |
4163 | struct cfg80211_registered_device *rdev; | |
4164 | int err; | |
4165 | ||
4166 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
4167 | return -EINVAL; | |
4168 | ||
4169 | rtnl_lock(); | |
4170 | ||
4171 | rdev = cfg80211_get_dev_from_info(info); | |
4172 | if (IS_ERR(rdev)) { | |
4173 | err = PTR_ERR(rdev); | |
4174 | goto unlock_rtnl; | |
4175 | } | |
4176 | ||
4177 | err = -EOPNOTSUPP; | |
4178 | if (rdev->ops->testmode_cmd) { | |
4179 | rdev->testmode_info = info; | |
4180 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
4181 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
4182 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
4183 | rdev->testmode_info = NULL; | |
4184 | } | |
4185 | ||
4d0c8aea | 4186 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
4187 | |
4188 | unlock_rtnl: | |
4189 | rtnl_unlock(); | |
4190 | return err; | |
4191 | } | |
4192 | ||
4193 | static struct sk_buff * | |
4194 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
4195 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
4196 | { | |
4197 | struct sk_buff *skb; | |
4198 | void *hdr; | |
4199 | struct nlattr *data; | |
4200 | ||
4201 | skb = nlmsg_new(approxlen + 100, gfp); | |
4202 | if (!skb) | |
4203 | return NULL; | |
4204 | ||
4205 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
4206 | if (!hdr) { | |
4207 | kfree_skb(skb); | |
4208 | return NULL; | |
4209 | } | |
4210 | ||
4211 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4212 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
4213 | ||
4214 | ((void **)skb->cb)[0] = rdev; | |
4215 | ((void **)skb->cb)[1] = hdr; | |
4216 | ((void **)skb->cb)[2] = data; | |
4217 | ||
4218 | return skb; | |
4219 | ||
4220 | nla_put_failure: | |
4221 | kfree_skb(skb); | |
4222 | return NULL; | |
4223 | } | |
4224 | ||
4225 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
4226 | int approxlen) | |
4227 | { | |
4228 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4229 | ||
4230 | if (WARN_ON(!rdev->testmode_info)) | |
4231 | return NULL; | |
4232 | ||
4233 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
4234 | rdev->testmode_info->snd_pid, | |
4235 | rdev->testmode_info->snd_seq, | |
4236 | GFP_KERNEL); | |
4237 | } | |
4238 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
4239 | ||
4240 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
4241 | { | |
4242 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
4243 | void *hdr = ((void **)skb->cb)[1]; | |
4244 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4245 | ||
4246 | if (WARN_ON(!rdev->testmode_info)) { | |
4247 | kfree_skb(skb); | |
4248 | return -EINVAL; | |
4249 | } | |
4250 | ||
4251 | nla_nest_end(skb, data); | |
4252 | genlmsg_end(skb, hdr); | |
4253 | return genlmsg_reply(skb, rdev->testmode_info); | |
4254 | } | |
4255 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
4256 | ||
4257 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
4258 | int approxlen, gfp_t gfp) | |
4259 | { | |
4260 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4261 | ||
4262 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
4263 | } | |
4264 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
4265 | ||
4266 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
4267 | { | |
4268 | void *hdr = ((void **)skb->cb)[1]; | |
4269 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4270 | ||
4271 | nla_nest_end(skb, data); | |
4272 | genlmsg_end(skb, hdr); | |
4273 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
4274 | } | |
4275 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
4276 | #endif | |
4277 | ||
b23aa676 SO |
4278 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
4279 | { | |
79c97e97 | 4280 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4281 | struct net_device *dev; |
4282 | struct cfg80211_connect_params connect; | |
4283 | struct wiphy *wiphy; | |
fffd0934 | 4284 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
4285 | int err; |
4286 | ||
4287 | memset(&connect, 0, sizeof(connect)); | |
4288 | ||
4289 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4290 | return -EINVAL; | |
4291 | ||
4292 | if (!info->attrs[NL80211_ATTR_SSID] || | |
4293 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4294 | return -EINVAL; | |
4295 | ||
4296 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
4297 | connect.auth_type = | |
4298 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
4299 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
4300 | return -EINVAL; | |
4301 | } else | |
4302 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
4303 | ||
4304 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
4305 | ||
3dc27d25 JB |
4306 | err = nl80211_crypto_settings(info, &connect.crypto, |
4307 | NL80211_MAX_NR_CIPHER_SUITES); | |
b23aa676 SO |
4308 | if (err) |
4309 | return err; | |
4310 | rtnl_lock(); | |
4311 | ||
463d0183 | 4312 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4313 | if (err) |
4314 | goto unlock_rtnl; | |
4315 | ||
4316 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4317 | err = -EOPNOTSUPP; | |
4318 | goto out; | |
4319 | } | |
4320 | ||
4321 | if (!netif_running(dev)) { | |
4322 | err = -ENETDOWN; | |
4323 | goto out; | |
4324 | } | |
4325 | ||
79c97e97 | 4326 | wiphy = &rdev->wiphy; |
b23aa676 | 4327 | |
b23aa676 SO |
4328 | if (info->attrs[NL80211_ATTR_MAC]) |
4329 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4330 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4331 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4332 | ||
4333 | if (info->attrs[NL80211_ATTR_IE]) { | |
4334 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4335 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4336 | } | |
4337 | ||
4338 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
4339 | connect.channel = | |
4340 | ieee80211_get_channel(wiphy, | |
4341 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4342 | if (!connect.channel || | |
4343 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4344 | err = -EINVAL; | |
4345 | goto out; | |
4346 | } | |
4347 | } | |
4348 | ||
fffd0934 JB |
4349 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4350 | connkeys = nl80211_parse_connkeys(rdev, | |
4351 | info->attrs[NL80211_ATTR_KEYS]); | |
4352 | if (IS_ERR(connkeys)) { | |
4353 | err = PTR_ERR(connkeys); | |
4354 | connkeys = NULL; | |
4355 | goto out; | |
4356 | } | |
4357 | } | |
4358 | ||
4359 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
4360 | |
4361 | out: | |
79c97e97 | 4362 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4363 | dev_put(dev); |
4364 | unlock_rtnl: | |
fffd0934 JB |
4365 | if (err) |
4366 | kfree(connkeys); | |
b23aa676 SO |
4367 | rtnl_unlock(); |
4368 | return err; | |
4369 | } | |
4370 | ||
4371 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4372 | { | |
79c97e97 | 4373 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4374 | struct net_device *dev; |
4375 | int err; | |
4376 | u16 reason; | |
4377 | ||
4378 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4379 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4380 | else | |
4381 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4382 | ||
4383 | if (reason == 0) | |
4384 | return -EINVAL; | |
4385 | ||
4386 | rtnl_lock(); | |
4387 | ||
463d0183 | 4388 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4389 | if (err) |
4390 | goto unlock_rtnl; | |
4391 | ||
4392 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4393 | err = -EOPNOTSUPP; | |
4394 | goto out; | |
4395 | } | |
4396 | ||
4397 | if (!netif_running(dev)) { | |
4398 | err = -ENETDOWN; | |
4399 | goto out; | |
4400 | } | |
4401 | ||
79c97e97 | 4402 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4403 | |
4404 | out: | |
79c97e97 | 4405 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4406 | dev_put(dev); |
4407 | unlock_rtnl: | |
4408 | rtnl_unlock(); | |
4409 | return err; | |
4410 | } | |
4411 | ||
463d0183 JB |
4412 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4413 | { | |
4414 | struct cfg80211_registered_device *rdev; | |
4415 | struct net *net; | |
4416 | int err; | |
4417 | u32 pid; | |
4418 | ||
4419 | if (!info->attrs[NL80211_ATTR_PID]) | |
4420 | return -EINVAL; | |
4421 | ||
4422 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4423 | ||
4424 | rtnl_lock(); | |
4425 | ||
4426 | rdev = cfg80211_get_dev_from_info(info); | |
4427 | if (IS_ERR(rdev)) { | |
4428 | err = PTR_ERR(rdev); | |
8a8e05e5 | 4429 | goto out_rtnl; |
463d0183 JB |
4430 | } |
4431 | ||
4432 | net = get_net_ns_by_pid(pid); | |
4433 | if (IS_ERR(net)) { | |
4434 | err = PTR_ERR(net); | |
4435 | goto out; | |
4436 | } | |
4437 | ||
4438 | err = 0; | |
4439 | ||
4440 | /* check if anything to do */ | |
4441 | if (net_eq(wiphy_net(&rdev->wiphy), net)) | |
4442 | goto out_put_net; | |
4443 | ||
4444 | err = cfg80211_switch_netns(rdev, net); | |
4445 | out_put_net: | |
4446 | put_net(net); | |
4447 | out: | |
4448 | cfg80211_unlock_rdev(rdev); | |
8a8e05e5 | 4449 | out_rtnl: |
463d0183 JB |
4450 | rtnl_unlock(); |
4451 | return err; | |
4452 | } | |
4453 | ||
67fbb16b SO |
4454 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4455 | { | |
4456 | struct cfg80211_registered_device *rdev; | |
4457 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
4458 | struct cfg80211_pmksa *pmksa) = NULL; | |
4459 | int err; | |
4460 | struct net_device *dev; | |
4461 | struct cfg80211_pmksa pmksa; | |
4462 | ||
4463 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4464 | ||
4465 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4466 | return -EINVAL; | |
4467 | ||
4468 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4469 | return -EINVAL; | |
4470 | ||
4471 | rtnl_lock(); | |
4472 | ||
4473 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4474 | if (err) | |
4475 | goto out_rtnl; | |
4476 | ||
4477 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
4478 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4479 | ||
4480 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4481 | err = -EOPNOTSUPP; | |
4482 | goto out; | |
4483 | } | |
4484 | ||
4485 | switch (info->genlhdr->cmd) { | |
4486 | case NL80211_CMD_SET_PMKSA: | |
4487 | rdev_ops = rdev->ops->set_pmksa; | |
4488 | break; | |
4489 | case NL80211_CMD_DEL_PMKSA: | |
4490 | rdev_ops = rdev->ops->del_pmksa; | |
4491 | break; | |
4492 | default: | |
4493 | WARN_ON(1); | |
4494 | break; | |
4495 | } | |
4496 | ||
4497 | if (!rdev_ops) { | |
4498 | err = -EOPNOTSUPP; | |
4499 | goto out; | |
4500 | } | |
4501 | ||
4502 | err = rdev_ops(&rdev->wiphy, dev, &pmksa); | |
4503 | ||
4504 | out: | |
4505 | cfg80211_unlock_rdev(rdev); | |
4506 | dev_put(dev); | |
4507 | out_rtnl: | |
4508 | rtnl_unlock(); | |
4509 | ||
4510 | return err; | |
4511 | } | |
4512 | ||
4513 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4514 | { | |
4515 | struct cfg80211_registered_device *rdev; | |
4516 | int err; | |
4517 | struct net_device *dev; | |
4518 | ||
4519 | rtnl_lock(); | |
4520 | ||
4521 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4522 | if (err) | |
4523 | goto out_rtnl; | |
4524 | ||
4525 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4526 | err = -EOPNOTSUPP; | |
4527 | goto out; | |
4528 | } | |
4529 | ||
4530 | if (!rdev->ops->flush_pmksa) { | |
4531 | err = -EOPNOTSUPP; | |
4532 | goto out; | |
4533 | } | |
4534 | ||
4535 | err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); | |
4536 | ||
4537 | out: | |
4538 | cfg80211_unlock_rdev(rdev); | |
4539 | dev_put(dev); | |
4540 | out_rtnl: | |
4541 | rtnl_unlock(); | |
4542 | ||
4543 | return err; | |
4544 | ||
4545 | } | |
4546 | ||
9588bbd5 JM |
4547 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4548 | struct genl_info *info) | |
4549 | { | |
4550 | struct cfg80211_registered_device *rdev; | |
4551 | struct net_device *dev; | |
4552 | struct ieee80211_channel *chan; | |
4553 | struct sk_buff *msg; | |
4554 | void *hdr; | |
4555 | u64 cookie; | |
4556 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4557 | u32 freq, duration; | |
4558 | int err; | |
4559 | ||
4560 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4561 | !info->attrs[NL80211_ATTR_DURATION]) | |
4562 | return -EINVAL; | |
4563 | ||
4564 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4565 | ||
4566 | /* | |
4567 | * We should be on that channel for at least one jiffie, | |
4568 | * and more than 5 seconds seems excessive. | |
4569 | */ | |
4570 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4571 | return -EINVAL; | |
4572 | ||
4573 | rtnl_lock(); | |
4574 | ||
4575 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4576 | if (err) | |
4577 | goto unlock_rtnl; | |
4578 | ||
4579 | if (!rdev->ops->remain_on_channel) { | |
4580 | err = -EOPNOTSUPP; | |
4581 | goto out; | |
4582 | } | |
4583 | ||
4584 | if (!netif_running(dev)) { | |
4585 | err = -ENETDOWN; | |
4586 | goto out; | |
4587 | } | |
4588 | ||
4589 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4590 | channel_type = nla_get_u32( | |
4591 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4592 | if (channel_type != NL80211_CHAN_NO_HT && | |
4593 | channel_type != NL80211_CHAN_HT20 && | |
4594 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4595 | channel_type != NL80211_CHAN_HT40MINUS) { |
9588bbd5 JM |
4596 | err = -EINVAL; |
4597 | goto out; | |
579d7534 | 4598 | } |
9588bbd5 JM |
4599 | } |
4600 | ||
4601 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4602 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4603 | if (chan == NULL) { | |
4604 | err = -EINVAL; | |
4605 | goto out; | |
4606 | } | |
4607 | ||
4608 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4609 | if (!msg) { | |
4610 | err = -ENOMEM; | |
4611 | goto out; | |
4612 | } | |
4613 | ||
4614 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4615 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4616 | ||
4617 | if (IS_ERR(hdr)) { | |
4618 | err = PTR_ERR(hdr); | |
4619 | goto free_msg; | |
4620 | } | |
4621 | ||
4622 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4623 | channel_type, duration, &cookie); | |
4624 | ||
4625 | if (err) | |
4626 | goto free_msg; | |
4627 | ||
4628 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4629 | ||
4630 | genlmsg_end(msg, hdr); | |
4631 | err = genlmsg_reply(msg, info); | |
4632 | goto out; | |
4633 | ||
4634 | nla_put_failure: | |
4635 | err = -ENOBUFS; | |
4636 | free_msg: | |
4637 | nlmsg_free(msg); | |
4638 | out: | |
4639 | cfg80211_unlock_rdev(rdev); | |
4640 | dev_put(dev); | |
4641 | unlock_rtnl: | |
4642 | rtnl_unlock(); | |
4643 | return err; | |
4644 | } | |
4645 | ||
4646 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4647 | struct genl_info *info) | |
4648 | { | |
4649 | struct cfg80211_registered_device *rdev; | |
4650 | struct net_device *dev; | |
4651 | u64 cookie; | |
4652 | int err; | |
4653 | ||
4654 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4655 | return -EINVAL; | |
4656 | ||
4657 | rtnl_lock(); | |
4658 | ||
4659 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4660 | if (err) | |
4661 | goto unlock_rtnl; | |
4662 | ||
4663 | if (!rdev->ops->cancel_remain_on_channel) { | |
4664 | err = -EOPNOTSUPP; | |
4665 | goto out; | |
4666 | } | |
4667 | ||
4668 | if (!netif_running(dev)) { | |
4669 | err = -ENETDOWN; | |
4670 | goto out; | |
4671 | } | |
4672 | ||
4673 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4674 | ||
4675 | err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); | |
4676 | ||
4677 | out: | |
4678 | cfg80211_unlock_rdev(rdev); | |
4679 | dev_put(dev); | |
4680 | unlock_rtnl: | |
4681 | rtnl_unlock(); | |
4682 | return err; | |
4683 | } | |
4684 | ||
13ae75b1 JM |
4685 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4686 | u8 *rates, u8 rates_len) | |
4687 | { | |
4688 | u8 i; | |
4689 | u32 mask = 0; | |
4690 | ||
4691 | for (i = 0; i < rates_len; i++) { | |
4692 | int rate = (rates[i] & 0x7f) * 5; | |
4693 | int ridx; | |
4694 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4695 | struct ieee80211_rate *srate = | |
4696 | &sband->bitrates[ridx]; | |
4697 | if (rate == srate->bitrate) { | |
4698 | mask |= 1 << ridx; | |
4699 | break; | |
4700 | } | |
4701 | } | |
4702 | if (ridx == sband->n_bitrates) | |
4703 | return 0; /* rate not found */ | |
4704 | } | |
4705 | ||
4706 | return mask; | |
4707 | } | |
4708 | ||
b54452b0 | 4709 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4710 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4711 | .len = NL80211_MAX_SUPP_RATES }, | |
4712 | }; | |
4713 | ||
4714 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4715 | struct genl_info *info) | |
4716 | { | |
4717 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4718 | struct cfg80211_registered_device *rdev; | |
4719 | struct cfg80211_bitrate_mask mask; | |
4720 | int err, rem, i; | |
4721 | struct net_device *dev; | |
4722 | struct nlattr *tx_rates; | |
4723 | struct ieee80211_supported_band *sband; | |
4724 | ||
4725 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4726 | return -EINVAL; | |
4727 | ||
4728 | rtnl_lock(); | |
4729 | ||
4730 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4731 | if (err) | |
4732 | goto unlock_rtnl; | |
4733 | ||
4734 | if (!rdev->ops->set_bitrate_mask) { | |
4735 | err = -EOPNOTSUPP; | |
4736 | goto unlock; | |
4737 | } | |
4738 | ||
4739 | memset(&mask, 0, sizeof(mask)); | |
4740 | /* Default to all rates enabled */ | |
4741 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4742 | sband = rdev->wiphy.bands[i]; | |
4743 | mask.control[i].legacy = | |
4744 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4745 | } | |
4746 | ||
4747 | /* | |
4748 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4749 | * directly to the enum ieee80211_band values used in cfg80211. | |
4750 | */ | |
4751 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4752 | { | |
4753 | enum ieee80211_band band = nla_type(tx_rates); | |
4754 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
4755 | err = -EINVAL; | |
4756 | goto unlock; | |
4757 | } | |
4758 | sband = rdev->wiphy.bands[band]; | |
4759 | if (sband == NULL) { | |
4760 | err = -EINVAL; | |
4761 | goto unlock; | |
4762 | } | |
4763 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
4764 | nla_len(tx_rates), nl80211_txattr_policy); | |
4765 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4766 | mask.control[band].legacy = rateset_to_mask( | |
4767 | sband, | |
4768 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4769 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4770 | if (mask.control[band].legacy == 0) { | |
4771 | err = -EINVAL; | |
4772 | goto unlock; | |
4773 | } | |
4774 | } | |
4775 | } | |
4776 | ||
4777 | err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); | |
4778 | ||
4779 | unlock: | |
4780 | dev_put(dev); | |
4781 | cfg80211_unlock_rdev(rdev); | |
4782 | unlock_rtnl: | |
4783 | rtnl_unlock(); | |
4784 | return err; | |
4785 | } | |
4786 | ||
2e161f78 | 4787 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 JM |
4788 | { |
4789 | struct cfg80211_registered_device *rdev; | |
4790 | struct net_device *dev; | |
2e161f78 | 4791 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4792 | int err; |
4793 | ||
4794 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4795 | return -EINVAL; | |
4796 | ||
2e161f78 JB |
4797 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4798 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 JM |
4799 | |
4800 | rtnl_lock(); | |
4801 | ||
4802 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4803 | if (err) | |
4804 | goto unlock_rtnl; | |
4805 | ||
9d38d85d JB |
4806 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4807 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
026331c4 JM |
4808 | err = -EOPNOTSUPP; |
4809 | goto out; | |
4810 | } | |
4811 | ||
4812 | /* not much point in registering if we can't reply */ | |
2e161f78 | 4813 | if (!rdev->ops->mgmt_tx) { |
026331c4 JM |
4814 | err = -EOPNOTSUPP; |
4815 | goto out; | |
4816 | } | |
4817 | ||
2e161f78 JB |
4818 | err = cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
4819 | frame_type, | |
026331c4 JM |
4820 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4821 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
4822 | out: | |
4823 | cfg80211_unlock_rdev(rdev); | |
4824 | dev_put(dev); | |
4825 | unlock_rtnl: | |
4826 | rtnl_unlock(); | |
4827 | return err; | |
4828 | } | |
4829 | ||
2e161f78 | 4830 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 JM |
4831 | { |
4832 | struct cfg80211_registered_device *rdev; | |
4833 | struct net_device *dev; | |
4834 | struct ieee80211_channel *chan; | |
4835 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4836 | bool channel_type_valid = false; |
026331c4 JM |
4837 | u32 freq; |
4838 | int err; | |
4839 | void *hdr; | |
4840 | u64 cookie; | |
4841 | struct sk_buff *msg; | |
4842 | ||
4843 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4844 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4845 | return -EINVAL; | |
4846 | ||
4847 | rtnl_lock(); | |
4848 | ||
4849 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4850 | if (err) | |
4851 | goto unlock_rtnl; | |
4852 | ||
2e161f78 | 4853 | if (!rdev->ops->mgmt_tx) { |
026331c4 JM |
4854 | err = -EOPNOTSUPP; |
4855 | goto out; | |
4856 | } | |
4857 | ||
9d38d85d JB |
4858 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4859 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
026331c4 JM |
4860 | err = -EOPNOTSUPP; |
4861 | goto out; | |
4862 | } | |
4863 | ||
4864 | if (!netif_running(dev)) { | |
4865 | err = -ENETDOWN; | |
4866 | goto out; | |
4867 | } | |
4868 | ||
4869 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4870 | channel_type = nla_get_u32( | |
4871 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4872 | if (channel_type != NL80211_CHAN_NO_HT && | |
4873 | channel_type != NL80211_CHAN_HT20 && | |
4874 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4875 | channel_type != NL80211_CHAN_HT40MINUS) { |
026331c4 JM |
4876 | err = -EINVAL; |
4877 | goto out; | |
579d7534 | 4878 | } |
252aa631 | 4879 | channel_type_valid = true; |
026331c4 JM |
4880 | } |
4881 | ||
4882 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4883 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4884 | if (chan == NULL) { | |
4885 | err = -EINVAL; | |
4886 | goto out; | |
4887 | } | |
4888 | ||
4889 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4890 | if (!msg) { | |
4891 | err = -ENOMEM; | |
4892 | goto out; | |
4893 | } | |
4894 | ||
4895 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4896 | NL80211_CMD_FRAME); |
026331c4 JM |
4897 | |
4898 | if (IS_ERR(hdr)) { | |
4899 | err = PTR_ERR(hdr); | |
4900 | goto free_msg; | |
4901 | } | |
2e161f78 JB |
4902 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type, |
4903 | channel_type_valid, | |
4904 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4905 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4906 | &cookie); | |
026331c4 JM |
4907 | if (err) |
4908 | goto free_msg; | |
4909 | ||
4910 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4911 | ||
4912 | genlmsg_end(msg, hdr); | |
4913 | err = genlmsg_reply(msg, info); | |
4914 | goto out; | |
4915 | ||
4916 | nla_put_failure: | |
4917 | err = -ENOBUFS; | |
4918 | free_msg: | |
4919 | nlmsg_free(msg); | |
4920 | out: | |
4921 | cfg80211_unlock_rdev(rdev); | |
4922 | dev_put(dev); | |
4923 | unlock_rtnl: | |
4924 | rtnl_unlock(); | |
4925 | return err; | |
4926 | } | |
4927 | ||
ffb9eb3d KV |
4928 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4929 | { | |
4930 | struct cfg80211_registered_device *rdev; | |
4931 | struct wireless_dev *wdev; | |
4932 | struct net_device *dev; | |
4933 | u8 ps_state; | |
4934 | bool state; | |
4935 | int err; | |
4936 | ||
4937 | if (!info->attrs[NL80211_ATTR_PS_STATE]) { | |
4938 | err = -EINVAL; | |
4939 | goto out; | |
4940 | } | |
4941 | ||
4942 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4943 | ||
4944 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) { | |
4945 | err = -EINVAL; | |
4946 | goto out; | |
4947 | } | |
4948 | ||
4949 | rtnl_lock(); | |
4950 | ||
4951 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4952 | if (err) | |
4953 | goto unlock_rdev; | |
4954 | ||
4955 | wdev = dev->ieee80211_ptr; | |
4956 | ||
4957 | if (!rdev->ops->set_power_mgmt) { | |
4958 | err = -EOPNOTSUPP; | |
4959 | goto unlock_rdev; | |
4960 | } | |
4961 | ||
4962 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4963 | ||
4964 | if (state == wdev->ps) | |
4965 | goto unlock_rdev; | |
4966 | ||
4967 | wdev->ps = state; | |
4968 | ||
4969 | if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps, | |
4970 | wdev->ps_timeout)) | |
4971 | /* assume this means it's off */ | |
4972 | wdev->ps = false; | |
4973 | ||
4974 | unlock_rdev: | |
4975 | cfg80211_unlock_rdev(rdev); | |
4976 | dev_put(dev); | |
4977 | rtnl_unlock(); | |
4978 | ||
4979 | out: | |
4980 | return err; | |
4981 | } | |
4982 | ||
4983 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4984 | { | |
4985 | struct cfg80211_registered_device *rdev; | |
4986 | enum nl80211_ps_state ps_state; | |
4987 | struct wireless_dev *wdev; | |
4988 | struct net_device *dev; | |
4989 | struct sk_buff *msg; | |
4990 | void *hdr; | |
4991 | int err; | |
4992 | ||
4993 | rtnl_lock(); | |
4994 | ||
4995 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4996 | if (err) | |
4997 | goto unlock_rtnl; | |
4998 | ||
4999 | wdev = dev->ieee80211_ptr; | |
5000 | ||
5001 | if (!rdev->ops->set_power_mgmt) { | |
5002 | err = -EOPNOTSUPP; | |
5003 | goto out; | |
5004 | } | |
5005 | ||
5006 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5007 | if (!msg) { | |
5008 | err = -ENOMEM; | |
5009 | goto out; | |
5010 | } | |
5011 | ||
5012 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5013 | NL80211_CMD_GET_POWER_SAVE); | |
5014 | if (!hdr) { | |
5015 | err = -ENOMEM; | |
5016 | goto free_msg; | |
5017 | } | |
5018 | ||
5019 | if (wdev->ps) | |
5020 | ps_state = NL80211_PS_ENABLED; | |
5021 | else | |
5022 | ps_state = NL80211_PS_DISABLED; | |
5023 | ||
5024 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
5025 | ||
5026 | genlmsg_end(msg, hdr); | |
5027 | err = genlmsg_reply(msg, info); | |
5028 | goto out; | |
5029 | ||
5030 | nla_put_failure: | |
5031 | err = -ENOBUFS; | |
5032 | ||
5033 | free_msg: | |
5034 | nlmsg_free(msg); | |
5035 | ||
5036 | out: | |
5037 | cfg80211_unlock_rdev(rdev); | |
5038 | dev_put(dev); | |
5039 | ||
5040 | unlock_rtnl: | |
5041 | rtnl_unlock(); | |
5042 | ||
5043 | return err; | |
5044 | } | |
5045 | ||
d6dc1a38 JO |
5046 | static struct nla_policy |
5047 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
5048 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
5049 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
5050 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
5051 | }; | |
5052 | ||
5053 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
5054 | s32 threshold, u32 hysteresis) | |
5055 | { | |
5056 | struct cfg80211_registered_device *rdev; | |
5057 | struct wireless_dev *wdev; | |
5058 | struct net_device *dev; | |
5059 | int err; | |
5060 | ||
5061 | if (threshold > 0) | |
5062 | return -EINVAL; | |
5063 | ||
5064 | rtnl_lock(); | |
5065 | ||
5066 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
5067 | if (err) | |
5068 | goto unlock_rdev; | |
5069 | ||
5070 | wdev = dev->ieee80211_ptr; | |
5071 | ||
5072 | if (!rdev->ops->set_cqm_rssi_config) { | |
5073 | err = -EOPNOTSUPP; | |
5074 | goto unlock_rdev; | |
5075 | } | |
5076 | ||
5077 | if (wdev->iftype != NL80211_IFTYPE_STATION) { | |
5078 | err = -EOPNOTSUPP; | |
5079 | goto unlock_rdev; | |
5080 | } | |
5081 | ||
5082 | err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, | |
5083 | threshold, hysteresis); | |
5084 | ||
5085 | unlock_rdev: | |
5086 | cfg80211_unlock_rdev(rdev); | |
5087 | dev_put(dev); | |
5088 | rtnl_unlock(); | |
5089 | ||
5090 | return err; | |
5091 | } | |
5092 | ||
5093 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
5094 | { | |
5095 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
5096 | struct nlattr *cqm; | |
5097 | int err; | |
5098 | ||
5099 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
5100 | if (!cqm) { | |
5101 | err = -EINVAL; | |
5102 | goto out; | |
5103 | } | |
5104 | ||
5105 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
5106 | nl80211_attr_cqm_policy); | |
5107 | if (err) | |
5108 | goto out; | |
5109 | ||
5110 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
5111 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
5112 | s32 threshold; | |
5113 | u32 hysteresis; | |
5114 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
5115 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
5116 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
5117 | } else | |
5118 | err = -EINVAL; | |
5119 | ||
5120 | out: | |
5121 | return err; | |
5122 | } | |
5123 | ||
55682965 JB |
5124 | static struct genl_ops nl80211_ops[] = { |
5125 | { | |
5126 | .cmd = NL80211_CMD_GET_WIPHY, | |
5127 | .doit = nl80211_get_wiphy, | |
5128 | .dumpit = nl80211_dump_wiphy, | |
5129 | .policy = nl80211_policy, | |
5130 | /* can be retrieved by unprivileged users */ | |
5131 | }, | |
5132 | { | |
5133 | .cmd = NL80211_CMD_SET_WIPHY, | |
5134 | .doit = nl80211_set_wiphy, | |
5135 | .policy = nl80211_policy, | |
5136 | .flags = GENL_ADMIN_PERM, | |
5137 | }, | |
5138 | { | |
5139 | .cmd = NL80211_CMD_GET_INTERFACE, | |
5140 | .doit = nl80211_get_interface, | |
5141 | .dumpit = nl80211_dump_interface, | |
5142 | .policy = nl80211_policy, | |
5143 | /* can be retrieved by unprivileged users */ | |
5144 | }, | |
5145 | { | |
5146 | .cmd = NL80211_CMD_SET_INTERFACE, | |
5147 | .doit = nl80211_set_interface, | |
5148 | .policy = nl80211_policy, | |
5149 | .flags = GENL_ADMIN_PERM, | |
5150 | }, | |
5151 | { | |
5152 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
5153 | .doit = nl80211_new_interface, | |
5154 | .policy = nl80211_policy, | |
5155 | .flags = GENL_ADMIN_PERM, | |
5156 | }, | |
5157 | { | |
5158 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
5159 | .doit = nl80211_del_interface, | |
5160 | .policy = nl80211_policy, | |
41ade00f JB |
5161 | .flags = GENL_ADMIN_PERM, |
5162 | }, | |
5163 | { | |
5164 | .cmd = NL80211_CMD_GET_KEY, | |
5165 | .doit = nl80211_get_key, | |
5166 | .policy = nl80211_policy, | |
5167 | .flags = GENL_ADMIN_PERM, | |
5168 | }, | |
5169 | { | |
5170 | .cmd = NL80211_CMD_SET_KEY, | |
5171 | .doit = nl80211_set_key, | |
5172 | .policy = nl80211_policy, | |
5173 | .flags = GENL_ADMIN_PERM, | |
5174 | }, | |
5175 | { | |
5176 | .cmd = NL80211_CMD_NEW_KEY, | |
5177 | .doit = nl80211_new_key, | |
5178 | .policy = nl80211_policy, | |
5179 | .flags = GENL_ADMIN_PERM, | |
5180 | }, | |
5181 | { | |
5182 | .cmd = NL80211_CMD_DEL_KEY, | |
5183 | .doit = nl80211_del_key, | |
5184 | .policy = nl80211_policy, | |
55682965 JB |
5185 | .flags = GENL_ADMIN_PERM, |
5186 | }, | |
ed1b6cc7 JB |
5187 | { |
5188 | .cmd = NL80211_CMD_SET_BEACON, | |
5189 | .policy = nl80211_policy, | |
5190 | .flags = GENL_ADMIN_PERM, | |
5191 | .doit = nl80211_addset_beacon, | |
5192 | }, | |
5193 | { | |
5194 | .cmd = NL80211_CMD_NEW_BEACON, | |
5195 | .policy = nl80211_policy, | |
5196 | .flags = GENL_ADMIN_PERM, | |
5197 | .doit = nl80211_addset_beacon, | |
5198 | }, | |
5199 | { | |
5200 | .cmd = NL80211_CMD_DEL_BEACON, | |
5201 | .policy = nl80211_policy, | |
5202 | .flags = GENL_ADMIN_PERM, | |
5203 | .doit = nl80211_del_beacon, | |
5204 | }, | |
5727ef1b JB |
5205 | { |
5206 | .cmd = NL80211_CMD_GET_STATION, | |
5207 | .doit = nl80211_get_station, | |
2ec600d6 | 5208 | .dumpit = nl80211_dump_station, |
5727ef1b | 5209 | .policy = nl80211_policy, |
5727ef1b JB |
5210 | }, |
5211 | { | |
5212 | .cmd = NL80211_CMD_SET_STATION, | |
5213 | .doit = nl80211_set_station, | |
5214 | .policy = nl80211_policy, | |
5215 | .flags = GENL_ADMIN_PERM, | |
5216 | }, | |
5217 | { | |
5218 | .cmd = NL80211_CMD_NEW_STATION, | |
5219 | .doit = nl80211_new_station, | |
5220 | .policy = nl80211_policy, | |
5221 | .flags = GENL_ADMIN_PERM, | |
5222 | }, | |
5223 | { | |
5224 | .cmd = NL80211_CMD_DEL_STATION, | |
5225 | .doit = nl80211_del_station, | |
5226 | .policy = nl80211_policy, | |
2ec600d6 LCC |
5227 | .flags = GENL_ADMIN_PERM, |
5228 | }, | |
5229 | { | |
5230 | .cmd = NL80211_CMD_GET_MPATH, | |
5231 | .doit = nl80211_get_mpath, | |
5232 | .dumpit = nl80211_dump_mpath, | |
5233 | .policy = nl80211_policy, | |
5234 | .flags = GENL_ADMIN_PERM, | |
5235 | }, | |
5236 | { | |
5237 | .cmd = NL80211_CMD_SET_MPATH, | |
5238 | .doit = nl80211_set_mpath, | |
5239 | .policy = nl80211_policy, | |
5240 | .flags = GENL_ADMIN_PERM, | |
5241 | }, | |
5242 | { | |
5243 | .cmd = NL80211_CMD_NEW_MPATH, | |
5244 | .doit = nl80211_new_mpath, | |
5245 | .policy = nl80211_policy, | |
5246 | .flags = GENL_ADMIN_PERM, | |
5247 | }, | |
5248 | { | |
5249 | .cmd = NL80211_CMD_DEL_MPATH, | |
5250 | .doit = nl80211_del_mpath, | |
5251 | .policy = nl80211_policy, | |
9f1ba906 JM |
5252 | .flags = GENL_ADMIN_PERM, |
5253 | }, | |
5254 | { | |
5255 | .cmd = NL80211_CMD_SET_BSS, | |
5256 | .doit = nl80211_set_bss, | |
5257 | .policy = nl80211_policy, | |
b2e1b302 LR |
5258 | .flags = GENL_ADMIN_PERM, |
5259 | }, | |
f130347c LR |
5260 | { |
5261 | .cmd = NL80211_CMD_GET_REG, | |
5262 | .doit = nl80211_get_reg, | |
5263 | .policy = nl80211_policy, | |
5264 | /* can be retrieved by unprivileged users */ | |
5265 | }, | |
b2e1b302 LR |
5266 | { |
5267 | .cmd = NL80211_CMD_SET_REG, | |
5268 | .doit = nl80211_set_reg, | |
5269 | .policy = nl80211_policy, | |
5270 | .flags = GENL_ADMIN_PERM, | |
5271 | }, | |
5272 | { | |
5273 | .cmd = NL80211_CMD_REQ_SET_REG, | |
5274 | .doit = nl80211_req_set_reg, | |
5275 | .policy = nl80211_policy, | |
93da9cc1 | 5276 | .flags = GENL_ADMIN_PERM, |
5277 | }, | |
5278 | { | |
5279 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
5280 | .doit = nl80211_get_mesh_params, | |
5281 | .policy = nl80211_policy, | |
5282 | /* can be retrieved by unprivileged users */ | |
5283 | }, | |
5284 | { | |
5285 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
5286 | .doit = nl80211_set_mesh_params, | |
5287 | .policy = nl80211_policy, | |
9aed3cc1 JM |
5288 | .flags = GENL_ADMIN_PERM, |
5289 | }, | |
2a519311 JB |
5290 | { |
5291 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
5292 | .doit = nl80211_trigger_scan, | |
5293 | .policy = nl80211_policy, | |
5294 | .flags = GENL_ADMIN_PERM, | |
5295 | }, | |
5296 | { | |
5297 | .cmd = NL80211_CMD_GET_SCAN, | |
5298 | .policy = nl80211_policy, | |
5299 | .dumpit = nl80211_dump_scan, | |
5300 | }, | |
636a5d36 JM |
5301 | { |
5302 | .cmd = NL80211_CMD_AUTHENTICATE, | |
5303 | .doit = nl80211_authenticate, | |
5304 | .policy = nl80211_policy, | |
5305 | .flags = GENL_ADMIN_PERM, | |
5306 | }, | |
5307 | { | |
5308 | .cmd = NL80211_CMD_ASSOCIATE, | |
5309 | .doit = nl80211_associate, | |
5310 | .policy = nl80211_policy, | |
5311 | .flags = GENL_ADMIN_PERM, | |
5312 | }, | |
5313 | { | |
5314 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
5315 | .doit = nl80211_deauthenticate, | |
5316 | .policy = nl80211_policy, | |
5317 | .flags = GENL_ADMIN_PERM, | |
5318 | }, | |
5319 | { | |
5320 | .cmd = NL80211_CMD_DISASSOCIATE, | |
5321 | .doit = nl80211_disassociate, | |
5322 | .policy = nl80211_policy, | |
5323 | .flags = GENL_ADMIN_PERM, | |
5324 | }, | |
04a773ad JB |
5325 | { |
5326 | .cmd = NL80211_CMD_JOIN_IBSS, | |
5327 | .doit = nl80211_join_ibss, | |
5328 | .policy = nl80211_policy, | |
5329 | .flags = GENL_ADMIN_PERM, | |
5330 | }, | |
5331 | { | |
5332 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
5333 | .doit = nl80211_leave_ibss, | |
5334 | .policy = nl80211_policy, | |
5335 | .flags = GENL_ADMIN_PERM, | |
5336 | }, | |
aff89a9b JB |
5337 | #ifdef CONFIG_NL80211_TESTMODE |
5338 | { | |
5339 | .cmd = NL80211_CMD_TESTMODE, | |
5340 | .doit = nl80211_testmode_do, | |
5341 | .policy = nl80211_policy, | |
5342 | .flags = GENL_ADMIN_PERM, | |
5343 | }, | |
5344 | #endif | |
b23aa676 SO |
5345 | { |
5346 | .cmd = NL80211_CMD_CONNECT, | |
5347 | .doit = nl80211_connect, | |
5348 | .policy = nl80211_policy, | |
5349 | .flags = GENL_ADMIN_PERM, | |
5350 | }, | |
5351 | { | |
5352 | .cmd = NL80211_CMD_DISCONNECT, | |
5353 | .doit = nl80211_disconnect, | |
5354 | .policy = nl80211_policy, | |
5355 | .flags = GENL_ADMIN_PERM, | |
5356 | }, | |
463d0183 JB |
5357 | { |
5358 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
5359 | .doit = nl80211_wiphy_netns, | |
5360 | .policy = nl80211_policy, | |
5361 | .flags = GENL_ADMIN_PERM, | |
5362 | }, | |
61fa713c HS |
5363 | { |
5364 | .cmd = NL80211_CMD_GET_SURVEY, | |
5365 | .policy = nl80211_policy, | |
5366 | .dumpit = nl80211_dump_survey, | |
5367 | }, | |
67fbb16b SO |
5368 | { |
5369 | .cmd = NL80211_CMD_SET_PMKSA, | |
5370 | .doit = nl80211_setdel_pmksa, | |
5371 | .policy = nl80211_policy, | |
5372 | .flags = GENL_ADMIN_PERM, | |
5373 | }, | |
5374 | { | |
5375 | .cmd = NL80211_CMD_DEL_PMKSA, | |
5376 | .doit = nl80211_setdel_pmksa, | |
5377 | .policy = nl80211_policy, | |
5378 | .flags = GENL_ADMIN_PERM, | |
5379 | }, | |
5380 | { | |
5381 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
5382 | .doit = nl80211_flush_pmksa, | |
5383 | .policy = nl80211_policy, | |
5384 | .flags = GENL_ADMIN_PERM, | |
5385 | }, | |
9588bbd5 JM |
5386 | { |
5387 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
5388 | .doit = nl80211_remain_on_channel, | |
5389 | .policy = nl80211_policy, | |
5390 | .flags = GENL_ADMIN_PERM, | |
5391 | }, | |
5392 | { | |
5393 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5394 | .doit = nl80211_cancel_remain_on_channel, | |
5395 | .policy = nl80211_policy, | |
5396 | .flags = GENL_ADMIN_PERM, | |
5397 | }, | |
13ae75b1 JM |
5398 | { |
5399 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
5400 | .doit = nl80211_set_tx_bitrate_mask, | |
5401 | .policy = nl80211_policy, | |
5402 | .flags = GENL_ADMIN_PERM, | |
5403 | }, | |
026331c4 | 5404 | { |
2e161f78 JB |
5405 | .cmd = NL80211_CMD_REGISTER_FRAME, |
5406 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
5407 | .policy = nl80211_policy, |
5408 | .flags = GENL_ADMIN_PERM, | |
5409 | }, | |
5410 | { | |
2e161f78 JB |
5411 | .cmd = NL80211_CMD_FRAME, |
5412 | .doit = nl80211_tx_mgmt, | |
026331c4 JM |
5413 | .policy = nl80211_policy, |
5414 | .flags = GENL_ADMIN_PERM, | |
5415 | }, | |
ffb9eb3d KV |
5416 | { |
5417 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
5418 | .doit = nl80211_set_power_save, | |
5419 | .policy = nl80211_policy, | |
5420 | .flags = GENL_ADMIN_PERM, | |
5421 | }, | |
5422 | { | |
5423 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
5424 | .doit = nl80211_get_power_save, | |
5425 | .policy = nl80211_policy, | |
5426 | /* can be retrieved by unprivileged users */ | |
5427 | }, | |
d6dc1a38 JO |
5428 | { |
5429 | .cmd = NL80211_CMD_SET_CQM, | |
5430 | .doit = nl80211_set_cqm, | |
5431 | .policy = nl80211_policy, | |
5432 | .flags = GENL_ADMIN_PERM, | |
5433 | }, | |
f444de05 JB |
5434 | { |
5435 | .cmd = NL80211_CMD_SET_CHANNEL, | |
5436 | .doit = nl80211_set_channel, | |
5437 | .policy = nl80211_policy, | |
5438 | .flags = GENL_ADMIN_PERM, | |
5439 | }, | |
55682965 | 5440 | }; |
9588bbd5 | 5441 | |
6039f6d2 JM |
5442 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
5443 | .name = "mlme", | |
5444 | }; | |
55682965 JB |
5445 | |
5446 | /* multicast groups */ | |
5447 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
5448 | .name = "config", | |
5449 | }; | |
2a519311 JB |
5450 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
5451 | .name = "scan", | |
5452 | }; | |
73d54c9e LR |
5453 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
5454 | .name = "regulatory", | |
5455 | }; | |
55682965 JB |
5456 | |
5457 | /* notification functions */ | |
5458 | ||
5459 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
5460 | { | |
5461 | struct sk_buff *msg; | |
5462 | ||
fd2120ca | 5463 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
5464 | if (!msg) |
5465 | return; | |
5466 | ||
5467 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
5468 | nlmsg_free(msg); | |
5469 | return; | |
5470 | } | |
5471 | ||
463d0183 JB |
5472 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5473 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
5474 | } |
5475 | ||
362a415d JB |
5476 | static int nl80211_add_scan_req(struct sk_buff *msg, |
5477 | struct cfg80211_registered_device *rdev) | |
5478 | { | |
5479 | struct cfg80211_scan_request *req = rdev->scan_req; | |
5480 | struct nlattr *nest; | |
5481 | int i; | |
5482 | ||
667503dd JB |
5483 | ASSERT_RDEV_LOCK(rdev); |
5484 | ||
362a415d JB |
5485 | if (WARN_ON(!req)) |
5486 | return 0; | |
5487 | ||
5488 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
5489 | if (!nest) | |
5490 | goto nla_put_failure; | |
5491 | for (i = 0; i < req->n_ssids; i++) | |
5492 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
5493 | nla_nest_end(msg, nest); | |
5494 | ||
5495 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
5496 | if (!nest) | |
5497 | goto nla_put_failure; | |
5498 | for (i = 0; i < req->n_channels; i++) | |
5499 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
5500 | nla_nest_end(msg, nest); | |
5501 | ||
5502 | if (req->ie) | |
5503 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
5504 | ||
5505 | return 0; | |
5506 | nla_put_failure: | |
5507 | return -ENOBUFS; | |
5508 | } | |
5509 | ||
a538e2d5 JB |
5510 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
5511 | struct cfg80211_registered_device *rdev, | |
5512 | struct net_device *netdev, | |
5513 | u32 pid, u32 seq, int flags, | |
5514 | u32 cmd) | |
2a519311 JB |
5515 | { |
5516 | void *hdr; | |
5517 | ||
5518 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5519 | if (!hdr) | |
5520 | return -1; | |
5521 | ||
b5850a7a | 5522 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5523 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5524 | ||
362a415d JB |
5525 | /* ignore errors and send incomplete event anyway */ |
5526 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5527 | |
5528 | return genlmsg_end(msg, hdr); | |
5529 | ||
5530 | nla_put_failure: | |
5531 | genlmsg_cancel(msg, hdr); | |
5532 | return -EMSGSIZE; | |
5533 | } | |
5534 | ||
a538e2d5 JB |
5535 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5536 | struct net_device *netdev) | |
5537 | { | |
5538 | struct sk_buff *msg; | |
5539 | ||
5540 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5541 | if (!msg) | |
5542 | return; | |
5543 | ||
5544 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5545 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
5546 | nlmsg_free(msg); | |
5547 | return; | |
5548 | } | |
5549 | ||
463d0183 JB |
5550 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5551 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
5552 | } |
5553 | ||
2a519311 JB |
5554 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
5555 | struct net_device *netdev) | |
5556 | { | |
5557 | struct sk_buff *msg; | |
5558 | ||
fd2120ca | 5559 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5560 | if (!msg) |
5561 | return; | |
5562 | ||
a538e2d5 JB |
5563 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5564 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
5565 | nlmsg_free(msg); |
5566 | return; | |
5567 | } | |
5568 | ||
463d0183 JB |
5569 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5570 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5571 | } |
5572 | ||
5573 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5574 | struct net_device *netdev) | |
5575 | { | |
5576 | struct sk_buff *msg; | |
5577 | ||
fd2120ca | 5578 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5579 | if (!msg) |
5580 | return; | |
5581 | ||
a538e2d5 JB |
5582 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5583 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5584 | nlmsg_free(msg); |
5585 | return; | |
5586 | } | |
5587 | ||
463d0183 JB |
5588 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5589 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5590 | } |
5591 | ||
73d54c9e LR |
5592 | /* |
5593 | * This can happen on global regulatory changes or device specific settings | |
5594 | * based on custom world regulatory domains. | |
5595 | */ | |
5596 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5597 | { | |
5598 | struct sk_buff *msg; | |
5599 | void *hdr; | |
5600 | ||
fd2120ca | 5601 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5602 | if (!msg) |
5603 | return; | |
5604 | ||
5605 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5606 | if (!hdr) { | |
5607 | nlmsg_free(msg); | |
5608 | return; | |
5609 | } | |
5610 | ||
5611 | /* Userspace can always count this one always being set */ | |
5612 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5613 | ||
5614 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5615 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5616 | NL80211_REGDOM_TYPE_WORLD); | |
5617 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5618 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5619 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5620 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5621 | request->intersect) | |
5622 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5623 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5624 | else { | |
5625 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5626 | NL80211_REGDOM_TYPE_COUNTRY); | |
5627 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5628 | } | |
5629 | ||
5630 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5631 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5632 | ||
5633 | if (genlmsg_end(msg, hdr) < 0) { | |
5634 | nlmsg_free(msg); | |
5635 | return; | |
5636 | } | |
5637 | ||
bc43b28c | 5638 | rcu_read_lock(); |
463d0183 | 5639 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5640 | GFP_ATOMIC); |
5641 | rcu_read_unlock(); | |
73d54c9e LR |
5642 | |
5643 | return; | |
5644 | ||
5645 | nla_put_failure: | |
5646 | genlmsg_cancel(msg, hdr); | |
5647 | nlmsg_free(msg); | |
5648 | } | |
5649 | ||
6039f6d2 JM |
5650 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5651 | struct net_device *netdev, | |
5652 | const u8 *buf, size_t len, | |
e6d6e342 | 5653 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5654 | { |
5655 | struct sk_buff *msg; | |
5656 | void *hdr; | |
5657 | ||
e6d6e342 | 5658 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5659 | if (!msg) |
5660 | return; | |
5661 | ||
5662 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5663 | if (!hdr) { | |
5664 | nlmsg_free(msg); | |
5665 | return; | |
5666 | } | |
5667 | ||
5668 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5669 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5670 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5671 | ||
5672 | if (genlmsg_end(msg, hdr) < 0) { | |
5673 | nlmsg_free(msg); | |
5674 | return; | |
5675 | } | |
5676 | ||
463d0183 JB |
5677 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5678 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5679 | return; |
5680 | ||
5681 | nla_put_failure: | |
5682 | genlmsg_cancel(msg, hdr); | |
5683 | nlmsg_free(msg); | |
5684 | } | |
5685 | ||
5686 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5687 | struct net_device *netdev, const u8 *buf, |
5688 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5689 | { |
5690 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5691 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5692 | } |
5693 | ||
5694 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5695 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5696 | size_t len, gfp_t gfp) |
6039f6d2 | 5697 | { |
e6d6e342 JB |
5698 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5699 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5700 | } |
5701 | ||
53b46b84 | 5702 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5703 | struct net_device *netdev, const u8 *buf, |
5704 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5705 | { |
5706 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5707 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5708 | } |
5709 | ||
53b46b84 JM |
5710 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5711 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5712 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5713 | { |
5714 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5715 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5716 | } |
5717 | ||
1b06bb40 LR |
5718 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5719 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5720 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5721 | { |
5722 | struct sk_buff *msg; | |
5723 | void *hdr; | |
5724 | ||
e6d6e342 | 5725 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5726 | if (!msg) |
5727 | return; | |
5728 | ||
5729 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5730 | if (!hdr) { | |
5731 | nlmsg_free(msg); | |
5732 | return; | |
5733 | } | |
5734 | ||
5735 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5736 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5737 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5738 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5739 | ||
5740 | if (genlmsg_end(msg, hdr) < 0) { | |
5741 | nlmsg_free(msg); | |
5742 | return; | |
5743 | } | |
5744 | ||
463d0183 JB |
5745 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5746 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5747 | return; |
5748 | ||
5749 | nla_put_failure: | |
5750 | genlmsg_cancel(msg, hdr); | |
5751 | nlmsg_free(msg); | |
5752 | } | |
5753 | ||
5754 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5755 | struct net_device *netdev, const u8 *addr, |
5756 | gfp_t gfp) | |
1965c853 JM |
5757 | { |
5758 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5759 | addr, gfp); |
1965c853 JM |
5760 | } |
5761 | ||
5762 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5763 | struct net_device *netdev, const u8 *addr, |
5764 | gfp_t gfp) | |
1965c853 | 5765 | { |
e6d6e342 JB |
5766 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5767 | addr, gfp); | |
1965c853 JM |
5768 | } |
5769 | ||
b23aa676 SO |
5770 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5771 | struct net_device *netdev, const u8 *bssid, | |
5772 | const u8 *req_ie, size_t req_ie_len, | |
5773 | const u8 *resp_ie, size_t resp_ie_len, | |
5774 | u16 status, gfp_t gfp) | |
5775 | { | |
5776 | struct sk_buff *msg; | |
5777 | void *hdr; | |
5778 | ||
5779 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5780 | if (!msg) | |
5781 | return; | |
5782 | ||
5783 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5784 | if (!hdr) { | |
5785 | nlmsg_free(msg); | |
5786 | return; | |
5787 | } | |
5788 | ||
5789 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5790 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5791 | if (bssid) | |
5792 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5793 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5794 | if (req_ie) | |
5795 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5796 | if (resp_ie) | |
5797 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5798 | ||
5799 | if (genlmsg_end(msg, hdr) < 0) { | |
5800 | nlmsg_free(msg); | |
5801 | return; | |
5802 | } | |
5803 | ||
463d0183 JB |
5804 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5805 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5806 | return; |
5807 | ||
5808 | nla_put_failure: | |
5809 | genlmsg_cancel(msg, hdr); | |
5810 | nlmsg_free(msg); | |
5811 | ||
5812 | } | |
5813 | ||
5814 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5815 | struct net_device *netdev, const u8 *bssid, | |
5816 | const u8 *req_ie, size_t req_ie_len, | |
5817 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5818 | { | |
5819 | struct sk_buff *msg; | |
5820 | void *hdr; | |
5821 | ||
5822 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5823 | if (!msg) | |
5824 | return; | |
5825 | ||
5826 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5827 | if (!hdr) { | |
5828 | nlmsg_free(msg); | |
5829 | return; | |
5830 | } | |
5831 | ||
5832 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5833 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5834 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5835 | if (req_ie) | |
5836 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5837 | if (resp_ie) | |
5838 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5839 | ||
5840 | if (genlmsg_end(msg, hdr) < 0) { | |
5841 | nlmsg_free(msg); | |
5842 | return; | |
5843 | } | |
5844 | ||
463d0183 JB |
5845 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5846 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5847 | return; |
5848 | ||
5849 | nla_put_failure: | |
5850 | genlmsg_cancel(msg, hdr); | |
5851 | nlmsg_free(msg); | |
5852 | ||
5853 | } | |
5854 | ||
5855 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5856 | struct net_device *netdev, u16 reason, | |
667503dd | 5857 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5858 | { |
5859 | struct sk_buff *msg; | |
5860 | void *hdr; | |
5861 | ||
667503dd | 5862 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5863 | if (!msg) |
5864 | return; | |
5865 | ||
5866 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5867 | if (!hdr) { | |
5868 | nlmsg_free(msg); | |
5869 | return; | |
5870 | } | |
5871 | ||
5872 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5873 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5874 | if (from_ap && reason) | |
5875 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5876 | if (from_ap) | |
5877 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5878 | if (ie) | |
5879 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5880 | ||
5881 | if (genlmsg_end(msg, hdr) < 0) { | |
5882 | nlmsg_free(msg); | |
5883 | return; | |
5884 | } | |
5885 | ||
463d0183 JB |
5886 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5887 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5888 | return; |
5889 | ||
5890 | nla_put_failure: | |
5891 | genlmsg_cancel(msg, hdr); | |
5892 | nlmsg_free(msg); | |
5893 | ||
5894 | } | |
5895 | ||
04a773ad JB |
5896 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5897 | struct net_device *netdev, const u8 *bssid, | |
5898 | gfp_t gfp) | |
5899 | { | |
5900 | struct sk_buff *msg; | |
5901 | void *hdr; | |
5902 | ||
fd2120ca | 5903 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5904 | if (!msg) |
5905 | return; | |
5906 | ||
5907 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5908 | if (!hdr) { | |
5909 | nlmsg_free(msg); | |
5910 | return; | |
5911 | } | |
5912 | ||
5913 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5914 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5915 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5916 | ||
5917 | if (genlmsg_end(msg, hdr) < 0) { | |
5918 | nlmsg_free(msg); | |
5919 | return; | |
5920 | } | |
5921 | ||
463d0183 JB |
5922 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5923 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5924 | return; |
5925 | ||
5926 | nla_put_failure: | |
5927 | genlmsg_cancel(msg, hdr); | |
5928 | nlmsg_free(msg); | |
5929 | } | |
5930 | ||
a3b8b056 JM |
5931 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5932 | struct net_device *netdev, const u8 *addr, | |
5933 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5934 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5935 | { |
5936 | struct sk_buff *msg; | |
5937 | void *hdr; | |
5938 | ||
e6d6e342 | 5939 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5940 | if (!msg) |
5941 | return; | |
5942 | ||
5943 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5944 | if (!hdr) { | |
5945 | nlmsg_free(msg); | |
5946 | return; | |
5947 | } | |
5948 | ||
5949 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5950 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5951 | if (addr) | |
5952 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5953 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5954 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5955 | if (tsc) | |
5956 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5957 | ||
5958 | if (genlmsg_end(msg, hdr) < 0) { | |
5959 | nlmsg_free(msg); | |
5960 | return; | |
5961 | } | |
5962 | ||
463d0183 JB |
5963 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5964 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5965 | return; |
5966 | ||
5967 | nla_put_failure: | |
5968 | genlmsg_cancel(msg, hdr); | |
5969 | nlmsg_free(msg); | |
5970 | } | |
5971 | ||
6bad8766 LR |
5972 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5973 | struct ieee80211_channel *channel_before, | |
5974 | struct ieee80211_channel *channel_after) | |
5975 | { | |
5976 | struct sk_buff *msg; | |
5977 | void *hdr; | |
5978 | struct nlattr *nl_freq; | |
5979 | ||
fd2120ca | 5980 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5981 | if (!msg) |
5982 | return; | |
5983 | ||
5984 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5985 | if (!hdr) { | |
5986 | nlmsg_free(msg); | |
5987 | return; | |
5988 | } | |
5989 | ||
5990 | /* | |
5991 | * Since we are applying the beacon hint to a wiphy we know its | |
5992 | * wiphy_idx is valid | |
5993 | */ | |
5994 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5995 | ||
5996 | /* Before */ | |
5997 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5998 | if (!nl_freq) | |
5999 | goto nla_put_failure; | |
6000 | if (nl80211_msg_put_channel(msg, channel_before)) | |
6001 | goto nla_put_failure; | |
6002 | nla_nest_end(msg, nl_freq); | |
6003 | ||
6004 | /* After */ | |
6005 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
6006 | if (!nl_freq) | |
6007 | goto nla_put_failure; | |
6008 | if (nl80211_msg_put_channel(msg, channel_after)) | |
6009 | goto nla_put_failure; | |
6010 | nla_nest_end(msg, nl_freq); | |
6011 | ||
6012 | if (genlmsg_end(msg, hdr) < 0) { | |
6013 | nlmsg_free(msg); | |
6014 | return; | |
6015 | } | |
6016 | ||
463d0183 JB |
6017 | rcu_read_lock(); |
6018 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
6019 | GFP_ATOMIC); | |
6020 | rcu_read_unlock(); | |
6bad8766 LR |
6021 | |
6022 | return; | |
6023 | ||
6024 | nla_put_failure: | |
6025 | genlmsg_cancel(msg, hdr); | |
6026 | nlmsg_free(msg); | |
6027 | } | |
6028 | ||
9588bbd5 JM |
6029 | static void nl80211_send_remain_on_chan_event( |
6030 | int cmd, struct cfg80211_registered_device *rdev, | |
6031 | struct net_device *netdev, u64 cookie, | |
6032 | struct ieee80211_channel *chan, | |
6033 | enum nl80211_channel_type channel_type, | |
6034 | unsigned int duration, gfp_t gfp) | |
6035 | { | |
6036 | struct sk_buff *msg; | |
6037 | void *hdr; | |
6038 | ||
6039 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6040 | if (!msg) | |
6041 | return; | |
6042 | ||
6043 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
6044 | if (!hdr) { | |
6045 | nlmsg_free(msg); | |
6046 | return; | |
6047 | } | |
6048 | ||
6049 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6050 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6051 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
6052 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
6053 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6054 | ||
6055 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
6056 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
6057 | ||
6058 | if (genlmsg_end(msg, hdr) < 0) { | |
6059 | nlmsg_free(msg); | |
6060 | return; | |
6061 | } | |
6062 | ||
6063 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6064 | nl80211_mlme_mcgrp.id, gfp); | |
6065 | return; | |
6066 | ||
6067 | nla_put_failure: | |
6068 | genlmsg_cancel(msg, hdr); | |
6069 | nlmsg_free(msg); | |
6070 | } | |
6071 | ||
6072 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
6073 | struct net_device *netdev, u64 cookie, | |
6074 | struct ieee80211_channel *chan, | |
6075 | enum nl80211_channel_type channel_type, | |
6076 | unsigned int duration, gfp_t gfp) | |
6077 | { | |
6078 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
6079 | rdev, netdev, cookie, chan, | |
6080 | channel_type, duration, gfp); | |
6081 | } | |
6082 | ||
6083 | void nl80211_send_remain_on_channel_cancel( | |
6084 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
6085 | u64 cookie, struct ieee80211_channel *chan, | |
6086 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
6087 | { | |
6088 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
6089 | rdev, netdev, cookie, chan, | |
6090 | channel_type, 0, gfp); | |
6091 | } | |
6092 | ||
98b62183 JB |
6093 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
6094 | struct net_device *dev, const u8 *mac_addr, | |
6095 | struct station_info *sinfo, gfp_t gfp) | |
6096 | { | |
6097 | struct sk_buff *msg; | |
6098 | ||
6099 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
6100 | if (!msg) | |
6101 | return; | |
6102 | ||
6103 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
6104 | nlmsg_free(msg); | |
6105 | return; | |
6106 | } | |
6107 | ||
6108 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6109 | nl80211_mlme_mcgrp.id, gfp); | |
6110 | } | |
6111 | ||
2e161f78 JB |
6112 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
6113 | struct net_device *netdev, u32 nlpid, | |
6114 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
6115 | { |
6116 | struct sk_buff *msg; | |
6117 | void *hdr; | |
6118 | int err; | |
6119 | ||
6120 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6121 | if (!msg) | |
6122 | return -ENOMEM; | |
6123 | ||
2e161f78 | 6124 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
6125 | if (!hdr) { |
6126 | nlmsg_free(msg); | |
6127 | return -ENOMEM; | |
6128 | } | |
6129 | ||
6130 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6131 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6132 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
6133 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
6134 | ||
6135 | err = genlmsg_end(msg, hdr); | |
6136 | if (err < 0) { | |
6137 | nlmsg_free(msg); | |
6138 | return err; | |
6139 | } | |
6140 | ||
6141 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
6142 | if (err < 0) | |
6143 | return err; | |
6144 | return 0; | |
6145 | ||
6146 | nla_put_failure: | |
6147 | genlmsg_cancel(msg, hdr); | |
6148 | nlmsg_free(msg); | |
6149 | return -ENOBUFS; | |
6150 | } | |
6151 | ||
2e161f78 JB |
6152 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
6153 | struct net_device *netdev, u64 cookie, | |
6154 | const u8 *buf, size_t len, bool ack, | |
6155 | gfp_t gfp) | |
026331c4 JM |
6156 | { |
6157 | struct sk_buff *msg; | |
6158 | void *hdr; | |
6159 | ||
6160 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6161 | if (!msg) | |
6162 | return; | |
6163 | ||
2e161f78 | 6164 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
6165 | if (!hdr) { |
6166 | nlmsg_free(msg); | |
6167 | return; | |
6168 | } | |
6169 | ||
6170 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6171 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6172 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
6173 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6174 | if (ack) | |
6175 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
6176 | ||
6177 | if (genlmsg_end(msg, hdr) < 0) { | |
6178 | nlmsg_free(msg); | |
6179 | return; | |
6180 | } | |
6181 | ||
6182 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
6183 | return; | |
6184 | ||
6185 | nla_put_failure: | |
6186 | genlmsg_cancel(msg, hdr); | |
6187 | nlmsg_free(msg); | |
6188 | } | |
6189 | ||
d6dc1a38 JO |
6190 | void |
6191 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
6192 | struct net_device *netdev, | |
6193 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
6194 | gfp_t gfp) | |
6195 | { | |
6196 | struct sk_buff *msg; | |
6197 | struct nlattr *pinfoattr; | |
6198 | void *hdr; | |
6199 | ||
6200 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
6201 | if (!msg) | |
6202 | return; | |
6203 | ||
6204 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
6205 | if (!hdr) { | |
6206 | nlmsg_free(msg); | |
6207 | return; | |
6208 | } | |
6209 | ||
6210 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6211 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6212 | ||
6213 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
6214 | if (!pinfoattr) | |
6215 | goto nla_put_failure; | |
6216 | ||
6217 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
6218 | rssi_event); | |
6219 | ||
6220 | nla_nest_end(msg, pinfoattr); | |
6221 | ||
6222 | if (genlmsg_end(msg, hdr) < 0) { | |
6223 | nlmsg_free(msg); | |
6224 | return; | |
6225 | } | |
6226 | ||
6227 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6228 | nl80211_mlme_mcgrp.id, gfp); | |
6229 | return; | |
6230 | ||
6231 | nla_put_failure: | |
6232 | genlmsg_cancel(msg, hdr); | |
6233 | nlmsg_free(msg); | |
6234 | } | |
6235 | ||
026331c4 JM |
6236 | static int nl80211_netlink_notify(struct notifier_block * nb, |
6237 | unsigned long state, | |
6238 | void *_notify) | |
6239 | { | |
6240 | struct netlink_notify *notify = _notify; | |
6241 | struct cfg80211_registered_device *rdev; | |
6242 | struct wireless_dev *wdev; | |
6243 | ||
6244 | if (state != NETLINK_URELEASE) | |
6245 | return NOTIFY_DONE; | |
6246 | ||
6247 | rcu_read_lock(); | |
6248 | ||
6249 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
6250 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 6251 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
6252 | |
6253 | rcu_read_unlock(); | |
6254 | ||
6255 | return NOTIFY_DONE; | |
6256 | } | |
6257 | ||
6258 | static struct notifier_block nl80211_netlink_notifier = { | |
6259 | .notifier_call = nl80211_netlink_notify, | |
6260 | }; | |
6261 | ||
55682965 JB |
6262 | /* initialisation/exit functions */ |
6263 | ||
6264 | int nl80211_init(void) | |
6265 | { | |
0d63cbb5 | 6266 | int err; |
55682965 | 6267 | |
0d63cbb5 MM |
6268 | err = genl_register_family_with_ops(&nl80211_fam, |
6269 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
6270 | if (err) |
6271 | return err; | |
6272 | ||
55682965 JB |
6273 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
6274 | if (err) | |
6275 | goto err_out; | |
6276 | ||
2a519311 JB |
6277 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
6278 | if (err) | |
6279 | goto err_out; | |
6280 | ||
73d54c9e LR |
6281 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
6282 | if (err) | |
6283 | goto err_out; | |
6284 | ||
6039f6d2 JM |
6285 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
6286 | if (err) | |
6287 | goto err_out; | |
6288 | ||
aff89a9b JB |
6289 | #ifdef CONFIG_NL80211_TESTMODE |
6290 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
6291 | if (err) | |
6292 | goto err_out; | |
6293 | #endif | |
6294 | ||
026331c4 JM |
6295 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
6296 | if (err) | |
6297 | goto err_out; | |
6298 | ||
55682965 JB |
6299 | return 0; |
6300 | err_out: | |
6301 | genl_unregister_family(&nl80211_fam); | |
6302 | return err; | |
6303 | } | |
6304 | ||
6305 | void nl80211_exit(void) | |
6306 | { | |
026331c4 | 6307 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
6308 | genl_unregister_family(&nl80211_fam); |
6309 | } |