Commit | Line | Data |
---|---|---|
55682965 JB |
1 | /* |
2 | * This is the new netlink-based wireless configuration interface. | |
3 | * | |
026331c4 | 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
55682965 JB |
5 | */ |
6 | ||
7 | #include <linux/if.h> | |
8 | #include <linux/module.h> | |
9 | #include <linux/err.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
55682965 JB |
11 | #include <linux/list.h> |
12 | #include <linux/if_ether.h> | |
13 | #include <linux/ieee80211.h> | |
14 | #include <linux/nl80211.h> | |
15 | #include <linux/rtnetlink.h> | |
16 | #include <linux/netlink.h> | |
2a519311 | 17 | #include <linux/etherdevice.h> |
463d0183 | 18 | #include <net/net_namespace.h> |
55682965 JB |
19 | #include <net/genetlink.h> |
20 | #include <net/cfg80211.h> | |
463d0183 | 21 | #include <net/sock.h> |
55682965 JB |
22 | #include "core.h" |
23 | #include "nl80211.h" | |
b2e1b302 | 24 | #include "reg.h" |
55682965 JB |
25 | |
26 | /* the netlink family */ | |
27 | static struct genl_family nl80211_fam = { | |
28 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
29 | .name = "nl80211", /* have users key off the name instead */ | |
30 | .hdrsize = 0, /* no private header */ | |
31 | .version = 1, /* no particular meaning now */ | |
32 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 33 | .netnsok = true, |
55682965 JB |
34 | }; |
35 | ||
79c97e97 | 36 | /* internal helper: get rdev and dev */ |
463d0183 | 37 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 38 | struct cfg80211_registered_device **rdev, |
55682965 JB |
39 | struct net_device **dev) |
40 | { | |
463d0183 | 41 | struct nlattr **attrs = info->attrs; |
55682965 JB |
42 | int ifindex; |
43 | ||
bba95fef | 44 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
45 | return -EINVAL; |
46 | ||
bba95fef | 47 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 48 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
49 | if (!*dev) |
50 | return -ENODEV; | |
51 | ||
463d0183 | 52 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 53 | if (IS_ERR(*rdev)) { |
55682965 | 54 | dev_put(*dev); |
79c97e97 | 55 | return PTR_ERR(*rdev); |
55682965 JB |
56 | } |
57 | ||
58 | return 0; | |
59 | } | |
60 | ||
61 | /* policy for the attributes */ | |
b54452b0 | 62 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
63 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
64 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 65 | .len = 20-1 }, |
31888487 | 66 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 67 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 68 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
69 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
70 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
71 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
72 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 73 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
74 | |
75 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
76 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
77 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
78 | |
79 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 80 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 81 | |
b9454e83 | 82 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
83 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
84 | .len = WLAN_MAX_KEY_LEN }, | |
85 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
86 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
87 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 88 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
89 | |
90 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
91 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
92 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
93 | .len = IEEE80211_MAX_DATA_LEN }, | |
94 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
95 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
96 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
97 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
98 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
99 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
100 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 101 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 102 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 103 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
104 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
105 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
106 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 107 | |
b2e1b302 LR |
108 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
109 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
110 | ||
9f1ba906 JM |
111 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
112 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
113 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
114 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
115 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 116 | |
93da9cc1 | 117 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
118 | ||
36aedc90 JM |
119 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
120 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
121 | |
122 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
123 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
124 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
125 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
126 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
127 | |
128 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
129 | .len = IEEE80211_MAX_SSID_LEN }, | |
130 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
131 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 132 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 133 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 134 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
135 | [NL80211_ATTR_STA_FLAGS2] = { |
136 | .len = sizeof(struct nl80211_sta_flag_update), | |
137 | }, | |
3f77316c | 138 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
139 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
140 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
141 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
142 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
143 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 144 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 145 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
146 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
147 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
148 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
149 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 150 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
151 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
152 | .len = IEEE80211_MAX_DATA_LEN }, | |
153 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 154 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 155 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 156 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 157 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
158 | |
159 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
160 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 161 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
55682965 JB |
162 | }; |
163 | ||
b9454e83 | 164 | /* policy for the attributes */ |
b54452b0 | 165 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 166 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
167 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
168 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
169 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
170 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
171 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
172 | }; | |
173 | ||
a043897a HS |
174 | /* ifidx get helper */ |
175 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
176 | { | |
177 | int res; | |
178 | ||
179 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
180 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
181 | nl80211_policy); | |
182 | if (res) | |
183 | return res; | |
184 | ||
185 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
186 | return -EINVAL; | |
187 | ||
188 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
189 | if (!res) | |
190 | return -EINVAL; | |
191 | return res; | |
192 | } | |
193 | ||
f4a11bb0 JB |
194 | /* IE validation */ |
195 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
196 | { | |
197 | const u8 *pos; | |
198 | int len; | |
199 | ||
200 | if (!attr) | |
201 | return true; | |
202 | ||
203 | pos = nla_data(attr); | |
204 | len = nla_len(attr); | |
205 | ||
206 | while (len) { | |
207 | u8 elemlen; | |
208 | ||
209 | if (len < 2) | |
210 | return false; | |
211 | len -= 2; | |
212 | ||
213 | elemlen = pos[1]; | |
214 | if (elemlen > len) | |
215 | return false; | |
216 | ||
217 | len -= elemlen; | |
218 | pos += 2 + elemlen; | |
219 | } | |
220 | ||
221 | return true; | |
222 | } | |
223 | ||
55682965 JB |
224 | /* message building helper */ |
225 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
226 | int flags, u8 cmd) | |
227 | { | |
228 | /* since there is no private header just add the generic one */ | |
229 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
230 | } | |
231 | ||
5dab3b8a LR |
232 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
233 | struct ieee80211_channel *chan) | |
234 | { | |
235 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
236 | chan->center_freq); | |
237 | ||
238 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
239 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
240 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
241 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
242 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
243 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
244 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
245 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
246 | ||
247 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
248 | DBM_TO_MBM(chan->max_power)); | |
249 | ||
250 | return 0; | |
251 | ||
252 | nla_put_failure: | |
253 | return -ENOBUFS; | |
254 | } | |
255 | ||
55682965 JB |
256 | /* netlink command implementations */ |
257 | ||
b9454e83 JB |
258 | struct key_parse { |
259 | struct key_params p; | |
260 | int idx; | |
261 | bool def, defmgmt; | |
262 | }; | |
263 | ||
264 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
265 | { | |
266 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
267 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
268 | nl80211_key_policy); | |
269 | if (err) | |
270 | return err; | |
271 | ||
272 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
273 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
274 | ||
275 | if (tb[NL80211_KEY_IDX]) | |
276 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
277 | ||
278 | if (tb[NL80211_KEY_DATA]) { | |
279 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
280 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
281 | } | |
282 | ||
283 | if (tb[NL80211_KEY_SEQ]) { | |
284 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
285 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
286 | } | |
287 | ||
288 | if (tb[NL80211_KEY_CIPHER]) | |
289 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
295 | { | |
296 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
297 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
298 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
299 | } | |
300 | ||
301 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
302 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
303 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
304 | } | |
305 | ||
306 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
307 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
308 | ||
309 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
310 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
311 | ||
312 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
313 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
319 | { | |
320 | int err; | |
321 | ||
322 | memset(k, 0, sizeof(*k)); | |
323 | k->idx = -1; | |
324 | ||
325 | if (info->attrs[NL80211_ATTR_KEY]) | |
326 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
327 | else | |
328 | err = nl80211_parse_key_old(info, k); | |
329 | ||
330 | if (err) | |
331 | return err; | |
332 | ||
333 | if (k->def && k->defmgmt) | |
334 | return -EINVAL; | |
335 | ||
336 | if (k->idx != -1) { | |
337 | if (k->defmgmt) { | |
338 | if (k->idx < 4 || k->idx > 5) | |
339 | return -EINVAL; | |
340 | } else if (k->def) { | |
341 | if (k->idx < 0 || k->idx > 3) | |
342 | return -EINVAL; | |
343 | } else { | |
344 | if (k->idx < 0 || k->idx > 5) | |
345 | return -EINVAL; | |
346 | } | |
347 | } | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
fffd0934 JB |
352 | static struct cfg80211_cached_keys * |
353 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
354 | struct nlattr *keys) | |
355 | { | |
356 | struct key_parse parse; | |
357 | struct nlattr *key; | |
358 | struct cfg80211_cached_keys *result; | |
359 | int rem, err, def = 0; | |
360 | ||
361 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
362 | if (!result) | |
363 | return ERR_PTR(-ENOMEM); | |
364 | ||
365 | result->def = -1; | |
366 | result->defmgmt = -1; | |
367 | ||
368 | nla_for_each_nested(key, keys, rem) { | |
369 | memset(&parse, 0, sizeof(parse)); | |
370 | parse.idx = -1; | |
371 | ||
372 | err = nl80211_parse_key_new(key, &parse); | |
373 | if (err) | |
374 | goto error; | |
375 | err = -EINVAL; | |
376 | if (!parse.p.key) | |
377 | goto error; | |
378 | if (parse.idx < 0 || parse.idx > 4) | |
379 | goto error; | |
380 | if (parse.def) { | |
381 | if (def) | |
382 | goto error; | |
383 | def = 1; | |
384 | result->def = parse.idx; | |
385 | } else if (parse.defmgmt) | |
386 | goto error; | |
387 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
388 | parse.idx, NULL); | |
389 | if (err) | |
390 | goto error; | |
391 | result->params[parse.idx].cipher = parse.p.cipher; | |
392 | result->params[parse.idx].key_len = parse.p.key_len; | |
393 | result->params[parse.idx].key = result->data[parse.idx]; | |
394 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
395 | } | |
396 | ||
397 | return result; | |
398 | error: | |
399 | kfree(result); | |
400 | return ERR_PTR(err); | |
401 | } | |
402 | ||
403 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
404 | { | |
405 | ASSERT_WDEV_LOCK(wdev); | |
406 | ||
407 | if (!netif_running(wdev->netdev)) | |
408 | return -ENETDOWN; | |
409 | ||
410 | switch (wdev->iftype) { | |
411 | case NL80211_IFTYPE_AP: | |
412 | case NL80211_IFTYPE_AP_VLAN: | |
413 | break; | |
414 | case NL80211_IFTYPE_ADHOC: | |
415 | if (!wdev->current_bss) | |
416 | return -ENOLINK; | |
417 | break; | |
418 | case NL80211_IFTYPE_STATION: | |
419 | if (wdev->sme_state != CFG80211_SME_CONNECTED) | |
420 | return -ENOLINK; | |
421 | break; | |
422 | default: | |
423 | return -EINVAL; | |
424 | } | |
425 | ||
426 | return 0; | |
427 | } | |
428 | ||
55682965 JB |
429 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
430 | struct cfg80211_registered_device *dev) | |
431 | { | |
432 | void *hdr; | |
ee688b00 JB |
433 | struct nlattr *nl_bands, *nl_band; |
434 | struct nlattr *nl_freqs, *nl_freq; | |
435 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 436 | struct nlattr *nl_modes; |
8fdc621d | 437 | struct nlattr *nl_cmds; |
ee688b00 JB |
438 | enum ieee80211_band band; |
439 | struct ieee80211_channel *chan; | |
440 | struct ieee80211_rate *rate; | |
441 | int i; | |
f59ac048 | 442 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
443 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
444 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
445 | |
446 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
447 | if (!hdr) | |
448 | return -1; | |
449 | ||
b5850a7a | 450 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 451 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 452 | |
f5ea9120 JB |
453 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
454 | cfg80211_rdev_list_generation); | |
455 | ||
b9a5f8ca JM |
456 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
457 | dev->wiphy.retry_short); | |
458 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
459 | dev->wiphy.retry_long); | |
460 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
461 | dev->wiphy.frag_threshold); | |
462 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
463 | dev->wiphy.rts_threshold); | |
81077e82 LT |
464 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
465 | dev->wiphy.coverage_class); | |
b9a5f8ca | 466 | |
2a519311 JB |
467 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
468 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
469 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
470 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 471 | |
25e47c18 JB |
472 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
473 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
474 | dev->wiphy.cipher_suites); | |
475 | ||
67fbb16b SO |
476 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
477 | dev->wiphy.max_num_pmkids); | |
478 | ||
c0692b8f JB |
479 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
480 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
481 | ||
f59ac048 LR |
482 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
483 | if (!nl_modes) | |
484 | goto nla_put_failure; | |
485 | ||
486 | i = 0; | |
487 | while (ifmodes) { | |
488 | if (ifmodes & 1) | |
489 | NLA_PUT_FLAG(msg, i); | |
490 | ifmodes >>= 1; | |
491 | i++; | |
492 | } | |
493 | ||
494 | nla_nest_end(msg, nl_modes); | |
495 | ||
ee688b00 JB |
496 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
497 | if (!nl_bands) | |
498 | goto nla_put_failure; | |
499 | ||
500 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
501 | if (!dev->wiphy.bands[band]) | |
502 | continue; | |
503 | ||
504 | nl_band = nla_nest_start(msg, band); | |
505 | if (!nl_band) | |
506 | goto nla_put_failure; | |
507 | ||
d51626df JB |
508 | /* add HT info */ |
509 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
510 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
511 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
512 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
513 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
514 | dev->wiphy.bands[band]->ht_cap.cap); | |
515 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
516 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
517 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
518 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
519 | } | |
520 | ||
ee688b00 JB |
521 | /* add frequencies */ |
522 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
523 | if (!nl_freqs) | |
524 | goto nla_put_failure; | |
525 | ||
526 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
527 | nl_freq = nla_nest_start(msg, i); | |
528 | if (!nl_freq) | |
529 | goto nla_put_failure; | |
530 | ||
531 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
532 | |
533 | if (nl80211_msg_put_channel(msg, chan)) | |
534 | goto nla_put_failure; | |
e2f367f2 | 535 | |
ee688b00 JB |
536 | nla_nest_end(msg, nl_freq); |
537 | } | |
538 | ||
539 | nla_nest_end(msg, nl_freqs); | |
540 | ||
541 | /* add bitrates */ | |
542 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
543 | if (!nl_rates) | |
544 | goto nla_put_failure; | |
545 | ||
546 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
547 | nl_rate = nla_nest_start(msg, i); | |
548 | if (!nl_rate) | |
549 | goto nla_put_failure; | |
550 | ||
551 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
552 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
553 | rate->bitrate); | |
554 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
555 | NLA_PUT_FLAG(msg, | |
556 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
557 | ||
558 | nla_nest_end(msg, nl_rate); | |
559 | } | |
560 | ||
561 | nla_nest_end(msg, nl_rates); | |
562 | ||
563 | nla_nest_end(msg, nl_band); | |
564 | } | |
565 | nla_nest_end(msg, nl_bands); | |
566 | ||
8fdc621d JB |
567 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
568 | if (!nl_cmds) | |
569 | goto nla_put_failure; | |
570 | ||
571 | i = 0; | |
572 | #define CMD(op, n) \ | |
573 | do { \ | |
574 | if (dev->ops->op) { \ | |
575 | i++; \ | |
576 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
577 | } \ | |
578 | } while (0) | |
579 | ||
580 | CMD(add_virtual_intf, NEW_INTERFACE); | |
581 | CMD(change_virtual_intf, SET_INTERFACE); | |
582 | CMD(add_key, NEW_KEY); | |
583 | CMD(add_beacon, NEW_BEACON); | |
584 | CMD(add_station, NEW_STATION); | |
585 | CMD(add_mpath, NEW_MPATH); | |
586 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
587 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
588 | CMD(auth, AUTHENTICATE); |
589 | CMD(assoc, ASSOCIATE); | |
590 | CMD(deauth, DEAUTHENTICATE); | |
591 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 592 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
593 | CMD(set_pmksa, SET_PMKSA); |
594 | CMD(del_pmksa, DEL_PMKSA); | |
595 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 596 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 597 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 598 | CMD(mgmt_tx, FRAME); |
5be83de5 | 599 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
600 | i++; |
601 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
602 | } | |
f444de05 | 603 | CMD(set_channel, SET_CHANNEL); |
8fdc621d JB |
604 | |
605 | #undef CMD | |
b23aa676 | 606 | |
6829c878 | 607 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
608 | i++; |
609 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
610 | } | |
611 | ||
6829c878 | 612 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
613 | i++; |
614 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
615 | } | |
616 | ||
8fdc621d JB |
617 | nla_nest_end(msg, nl_cmds); |
618 | ||
2e161f78 JB |
619 | if (mgmt_stypes) { |
620 | u16 stypes; | |
621 | struct nlattr *nl_ftypes, *nl_ifs; | |
622 | enum nl80211_iftype ift; | |
623 | ||
624 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
625 | if (!nl_ifs) | |
626 | goto nla_put_failure; | |
627 | ||
628 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
629 | nl_ftypes = nla_nest_start(msg, ift); | |
630 | if (!nl_ftypes) | |
631 | goto nla_put_failure; | |
632 | i = 0; | |
633 | stypes = mgmt_stypes[ift].tx; | |
634 | while (stypes) { | |
635 | if (stypes & 1) | |
636 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
637 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
638 | stypes >>= 1; | |
639 | i++; | |
640 | } | |
641 | nla_nest_end(msg, nl_ftypes); | |
642 | } | |
643 | ||
74b70a4e JB |
644 | nla_nest_end(msg, nl_ifs); |
645 | ||
2e161f78 JB |
646 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
647 | if (!nl_ifs) | |
648 | goto nla_put_failure; | |
649 | ||
650 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
651 | nl_ftypes = nla_nest_start(msg, ift); | |
652 | if (!nl_ftypes) | |
653 | goto nla_put_failure; | |
654 | i = 0; | |
655 | stypes = mgmt_stypes[ift].rx; | |
656 | while (stypes) { | |
657 | if (stypes & 1) | |
658 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
659 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
660 | stypes >>= 1; | |
661 | i++; | |
662 | } | |
663 | nla_nest_end(msg, nl_ftypes); | |
664 | } | |
665 | nla_nest_end(msg, nl_ifs); | |
666 | } | |
667 | ||
55682965 JB |
668 | return genlmsg_end(msg, hdr); |
669 | ||
670 | nla_put_failure: | |
bc3ed28c TG |
671 | genlmsg_cancel(msg, hdr); |
672 | return -EMSGSIZE; | |
55682965 JB |
673 | } |
674 | ||
675 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
676 | { | |
677 | int idx = 0; | |
678 | int start = cb->args[0]; | |
679 | struct cfg80211_registered_device *dev; | |
680 | ||
a1794390 | 681 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 682 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
683 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
684 | continue; | |
b4637271 | 685 | if (++idx <= start) |
55682965 JB |
686 | continue; |
687 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
688 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
689 | dev) < 0) { |
690 | idx--; | |
55682965 | 691 | break; |
b4637271 | 692 | } |
55682965 | 693 | } |
a1794390 | 694 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
695 | |
696 | cb->args[0] = idx; | |
697 | ||
698 | return skb->len; | |
699 | } | |
700 | ||
701 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
702 | { | |
703 | struct sk_buff *msg; | |
704 | struct cfg80211_registered_device *dev; | |
705 | ||
706 | dev = cfg80211_get_dev_from_info(info); | |
707 | if (IS_ERR(dev)) | |
708 | return PTR_ERR(dev); | |
709 | ||
fd2120ca | 710 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
711 | if (!msg) |
712 | goto out_err; | |
713 | ||
714 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) | |
715 | goto out_free; | |
716 | ||
4d0c8aea | 717 | cfg80211_unlock_rdev(dev); |
55682965 | 718 | |
134e6375 | 719 | return genlmsg_reply(msg, info); |
55682965 JB |
720 | |
721 | out_free: | |
722 | nlmsg_free(msg); | |
723 | out_err: | |
4d0c8aea | 724 | cfg80211_unlock_rdev(dev); |
55682965 JB |
725 | return -ENOBUFS; |
726 | } | |
727 | ||
31888487 JM |
728 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
729 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
730 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
731 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
732 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
733 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
734 | }; | |
735 | ||
736 | static int parse_txq_params(struct nlattr *tb[], | |
737 | struct ieee80211_txq_params *txq_params) | |
738 | { | |
739 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
740 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
741 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
742 | return -EINVAL; | |
743 | ||
744 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
745 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
746 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
747 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
748 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
749 | ||
750 | return 0; | |
751 | } | |
752 | ||
f444de05 JB |
753 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
754 | { | |
755 | /* | |
756 | * You can only set the channel explicitly for AP, mesh | |
757 | * and WDS type interfaces; all others have their channel | |
758 | * managed via their respective "establish a connection" | |
759 | * command (connect, join, ...) | |
760 | * | |
761 | * Monitors are special as they are normally slaved to | |
762 | * whatever else is going on, so they behave as though | |
763 | * you tried setting the wiphy channel itself. | |
764 | */ | |
765 | return !wdev || | |
766 | wdev->iftype == NL80211_IFTYPE_AP || | |
767 | wdev->iftype == NL80211_IFTYPE_WDS || | |
768 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
769 | wdev->iftype == NL80211_IFTYPE_MONITOR; | |
770 | } | |
771 | ||
772 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
773 | struct wireless_dev *wdev, | |
774 | struct genl_info *info) | |
775 | { | |
776 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
777 | u32 freq; | |
778 | int result; | |
779 | ||
780 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
781 | return -EINVAL; | |
782 | ||
783 | if (!nl80211_can_set_dev_channel(wdev)) | |
784 | return -EOPNOTSUPP; | |
785 | ||
786 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
787 | channel_type = nla_get_u32(info->attrs[ | |
788 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
789 | if (channel_type != NL80211_CHAN_NO_HT && | |
790 | channel_type != NL80211_CHAN_HT20 && | |
791 | channel_type != NL80211_CHAN_HT40PLUS && | |
792 | channel_type != NL80211_CHAN_HT40MINUS) | |
793 | return -EINVAL; | |
794 | } | |
795 | ||
796 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
797 | ||
798 | mutex_lock(&rdev->devlist_mtx); | |
799 | if (wdev) { | |
800 | wdev_lock(wdev); | |
801 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
802 | wdev_unlock(wdev); | |
803 | } else { | |
804 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
805 | } | |
806 | mutex_unlock(&rdev->devlist_mtx); | |
807 | ||
808 | return result; | |
809 | } | |
810 | ||
811 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
812 | { | |
813 | struct cfg80211_registered_device *rdev; | |
814 | struct net_device *netdev; | |
815 | int result; | |
816 | ||
817 | rtnl_lock(); | |
818 | ||
819 | result = get_rdev_dev_by_info_ifindex(info, &rdev, &netdev); | |
820 | if (result) | |
821 | goto unlock; | |
822 | ||
823 | result = __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); | |
824 | ||
825 | unlock: | |
826 | rtnl_unlock(); | |
827 | ||
828 | return result; | |
829 | } | |
830 | ||
55682965 JB |
831 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
832 | { | |
833 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
834 | struct net_device *netdev = NULL; |
835 | struct wireless_dev *wdev; | |
a1e567c8 | 836 | int result = 0, rem_txq_params = 0; |
31888487 | 837 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
838 | u32 changed; |
839 | u8 retry_short = 0, retry_long = 0; | |
840 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 841 | u8 coverage_class = 0; |
55682965 | 842 | |
4bbf4d56 | 843 | rtnl_lock(); |
55682965 | 844 | |
f444de05 JB |
845 | /* |
846 | * Try to find the wiphy and netdev. Normally this | |
847 | * function shouldn't need the netdev, but this is | |
848 | * done for backward compatibility -- previously | |
849 | * setting the channel was done per wiphy, but now | |
850 | * it is per netdev. Previous userland like hostapd | |
851 | * also passed a netdev to set_wiphy, so that it is | |
852 | * possible to let that go to the right netdev! | |
853 | */ | |
4bbf4d56 JB |
854 | mutex_lock(&cfg80211_mutex); |
855 | ||
f444de05 JB |
856 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
857 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
858 | ||
859 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
860 | if (netdev && netdev->ieee80211_ptr) { | |
861 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
862 | mutex_lock(&rdev->mtx); | |
863 | } else | |
864 | netdev = NULL; | |
4bbf4d56 JB |
865 | } |
866 | ||
f444de05 JB |
867 | if (!netdev) { |
868 | rdev = __cfg80211_rdev_from_info(info); | |
869 | if (IS_ERR(rdev)) { | |
870 | mutex_unlock(&cfg80211_mutex); | |
871 | result = PTR_ERR(rdev); | |
872 | goto unlock; | |
873 | } | |
874 | wdev = NULL; | |
875 | netdev = NULL; | |
876 | result = 0; | |
877 | ||
878 | mutex_lock(&rdev->mtx); | |
879 | } else if (netif_running(netdev) && | |
880 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
881 | wdev = netdev->ieee80211_ptr; | |
882 | else | |
883 | wdev = NULL; | |
884 | ||
885 | /* | |
886 | * end workaround code, by now the rdev is available | |
887 | * and locked, and wdev may or may not be NULL. | |
888 | */ | |
4bbf4d56 JB |
889 | |
890 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
891 | result = cfg80211_dev_rename( |
892 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
893 | |
894 | mutex_unlock(&cfg80211_mutex); | |
895 | ||
896 | if (result) | |
897 | goto bad_res; | |
31888487 JM |
898 | |
899 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
900 | struct ieee80211_txq_params txq_params; | |
901 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
902 | ||
903 | if (!rdev->ops->set_txq_params) { | |
904 | result = -EOPNOTSUPP; | |
905 | goto bad_res; | |
906 | } | |
907 | ||
908 | nla_for_each_nested(nl_txq_params, | |
909 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
910 | rem_txq_params) { | |
911 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
912 | nla_data(nl_txq_params), | |
913 | nla_len(nl_txq_params), | |
914 | txq_params_policy); | |
915 | result = parse_txq_params(tb, &txq_params); | |
916 | if (result) | |
917 | goto bad_res; | |
918 | ||
919 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
920 | &txq_params); | |
921 | if (result) | |
922 | goto bad_res; | |
923 | } | |
924 | } | |
55682965 | 925 | |
72bdcf34 | 926 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 927 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
928 | if (result) |
929 | goto bad_res; | |
930 | } | |
931 | ||
98d2ff8b JO |
932 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
933 | enum nl80211_tx_power_setting type; | |
934 | int idx, mbm = 0; | |
935 | ||
936 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 937 | result = -EOPNOTSUPP; |
98d2ff8b JO |
938 | goto bad_res; |
939 | } | |
940 | ||
941 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
942 | type = nla_get_u32(info->attrs[idx]); | |
943 | ||
944 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
945 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
946 | result = -EINVAL; | |
947 | goto bad_res; | |
948 | } | |
949 | ||
950 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
951 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
952 | mbm = nla_get_u32(info->attrs[idx]); | |
953 | } | |
954 | ||
955 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
956 | if (result) | |
957 | goto bad_res; | |
958 | } | |
959 | ||
b9a5f8ca JM |
960 | changed = 0; |
961 | ||
962 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
963 | retry_short = nla_get_u8( | |
964 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
965 | if (retry_short == 0) { | |
966 | result = -EINVAL; | |
967 | goto bad_res; | |
968 | } | |
969 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
970 | } | |
971 | ||
972 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
973 | retry_long = nla_get_u8( | |
974 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
975 | if (retry_long == 0) { | |
976 | result = -EINVAL; | |
977 | goto bad_res; | |
978 | } | |
979 | changed |= WIPHY_PARAM_RETRY_LONG; | |
980 | } | |
981 | ||
982 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
983 | frag_threshold = nla_get_u32( | |
984 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
985 | if (frag_threshold < 256) { | |
986 | result = -EINVAL; | |
987 | goto bad_res; | |
988 | } | |
989 | if (frag_threshold != (u32) -1) { | |
990 | /* | |
991 | * Fragments (apart from the last one) are required to | |
992 | * have even length. Make the fragmentation code | |
993 | * simpler by stripping LSB should someone try to use | |
994 | * odd threshold value. | |
995 | */ | |
996 | frag_threshold &= ~0x1; | |
997 | } | |
998 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
999 | } | |
1000 | ||
1001 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1002 | rts_threshold = nla_get_u32( | |
1003 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1004 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1005 | } | |
1006 | ||
81077e82 LT |
1007 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1008 | coverage_class = nla_get_u8( | |
1009 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1010 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1011 | } | |
1012 | ||
b9a5f8ca JM |
1013 | if (changed) { |
1014 | u8 old_retry_short, old_retry_long; | |
1015 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1016 | u8 old_coverage_class; |
b9a5f8ca JM |
1017 | |
1018 | if (!rdev->ops->set_wiphy_params) { | |
1019 | result = -EOPNOTSUPP; | |
1020 | goto bad_res; | |
1021 | } | |
1022 | ||
1023 | old_retry_short = rdev->wiphy.retry_short; | |
1024 | old_retry_long = rdev->wiphy.retry_long; | |
1025 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1026 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1027 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1028 | |
1029 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1030 | rdev->wiphy.retry_short = retry_short; | |
1031 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1032 | rdev->wiphy.retry_long = retry_long; | |
1033 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1034 | rdev->wiphy.frag_threshold = frag_threshold; | |
1035 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1036 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1037 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1038 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1039 | |
1040 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1041 | if (result) { | |
1042 | rdev->wiphy.retry_short = old_retry_short; | |
1043 | rdev->wiphy.retry_long = old_retry_long; | |
1044 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1045 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1046 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1047 | } |
1048 | } | |
72bdcf34 | 1049 | |
306d6112 | 1050 | bad_res: |
4bbf4d56 | 1051 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1052 | if (netdev) |
1053 | dev_put(netdev); | |
4bbf4d56 JB |
1054 | unlock: |
1055 | rtnl_unlock(); | |
55682965 JB |
1056 | return result; |
1057 | } | |
1058 | ||
1059 | ||
1060 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1061 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1062 | struct net_device *dev) |
1063 | { | |
1064 | void *hdr; | |
1065 | ||
1066 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1067 | if (!hdr) | |
1068 | return -1; | |
1069 | ||
1070 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1071 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1072 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1073 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1074 | |
1075 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1076 | rdev->devlist_generation ^ | |
1077 | (cfg80211_rdev_list_generation << 2)); | |
1078 | ||
55682965 JB |
1079 | return genlmsg_end(msg, hdr); |
1080 | ||
1081 | nla_put_failure: | |
bc3ed28c TG |
1082 | genlmsg_cancel(msg, hdr); |
1083 | return -EMSGSIZE; | |
55682965 JB |
1084 | } |
1085 | ||
1086 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1087 | { | |
1088 | int wp_idx = 0; | |
1089 | int if_idx = 0; | |
1090 | int wp_start = cb->args[0]; | |
1091 | int if_start = cb->args[1]; | |
f5ea9120 | 1092 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1093 | struct wireless_dev *wdev; |
1094 | ||
a1794390 | 1095 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1096 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1097 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1098 | continue; |
bba95fef JB |
1099 | if (wp_idx < wp_start) { |
1100 | wp_idx++; | |
55682965 | 1101 | continue; |
bba95fef | 1102 | } |
55682965 JB |
1103 | if_idx = 0; |
1104 | ||
f5ea9120 JB |
1105 | mutex_lock(&rdev->devlist_mtx); |
1106 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1107 | if (if_idx < if_start) { |
1108 | if_idx++; | |
55682965 | 1109 | continue; |
bba95fef | 1110 | } |
55682965 JB |
1111 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1112 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1113 | rdev, wdev->netdev) < 0) { |
1114 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1115 | goto out; |
1116 | } | |
1117 | if_idx++; | |
55682965 | 1118 | } |
f5ea9120 | 1119 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1120 | |
1121 | wp_idx++; | |
55682965 | 1122 | } |
bba95fef | 1123 | out: |
a1794390 | 1124 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1125 | |
1126 | cb->args[0] = wp_idx; | |
1127 | cb->args[1] = if_idx; | |
1128 | ||
1129 | return skb->len; | |
1130 | } | |
1131 | ||
1132 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1133 | { | |
1134 | struct sk_buff *msg; | |
1135 | struct cfg80211_registered_device *dev; | |
1136 | struct net_device *netdev; | |
1137 | int err; | |
1138 | ||
463d0183 | 1139 | err = get_rdev_dev_by_info_ifindex(info, &dev, &netdev); |
55682965 JB |
1140 | if (err) |
1141 | return err; | |
1142 | ||
fd2120ca | 1143 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
1144 | if (!msg) |
1145 | goto out_err; | |
1146 | ||
d726405a JB |
1147 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
1148 | dev, netdev) < 0) | |
55682965 JB |
1149 | goto out_free; |
1150 | ||
1151 | dev_put(netdev); | |
4d0c8aea | 1152 | cfg80211_unlock_rdev(dev); |
55682965 | 1153 | |
134e6375 | 1154 | return genlmsg_reply(msg, info); |
55682965 JB |
1155 | |
1156 | out_free: | |
1157 | nlmsg_free(msg); | |
1158 | out_err: | |
1159 | dev_put(netdev); | |
4d0c8aea | 1160 | cfg80211_unlock_rdev(dev); |
55682965 JB |
1161 | return -ENOBUFS; |
1162 | } | |
1163 | ||
66f7ac50 MW |
1164 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1165 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1166 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1167 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1168 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1169 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1170 | }; | |
1171 | ||
1172 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1173 | { | |
1174 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1175 | int flag; | |
1176 | ||
1177 | *mntrflags = 0; | |
1178 | ||
1179 | if (!nla) | |
1180 | return -EINVAL; | |
1181 | ||
1182 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1183 | nla, mntr_flags_policy)) | |
1184 | return -EINVAL; | |
1185 | ||
1186 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1187 | if (flags[flag]) | |
1188 | *mntrflags |= (1<<flag); | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
9bc383de | 1193 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1194 | struct net_device *netdev, u8 use_4addr, |
1195 | enum nl80211_iftype iftype) | |
9bc383de | 1196 | { |
ad4bb6f8 | 1197 | if (!use_4addr) { |
f350a0a8 | 1198 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1199 | return -EBUSY; |
9bc383de | 1200 | return 0; |
ad4bb6f8 | 1201 | } |
9bc383de JB |
1202 | |
1203 | switch (iftype) { | |
1204 | case NL80211_IFTYPE_AP_VLAN: | |
1205 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1206 | return 0; | |
1207 | break; | |
1208 | case NL80211_IFTYPE_STATION: | |
1209 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1210 | return 0; | |
1211 | break; | |
1212 | default: | |
1213 | break; | |
1214 | } | |
1215 | ||
1216 | return -EOPNOTSUPP; | |
1217 | } | |
1218 | ||
55682965 JB |
1219 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1220 | { | |
79c97e97 | 1221 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1222 | struct vif_params params; |
e36d56b6 | 1223 | int err; |
04a773ad | 1224 | enum nl80211_iftype otype, ntype; |
55682965 | 1225 | struct net_device *dev; |
92ffe055 | 1226 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1227 | bool change = false; |
55682965 | 1228 | |
2ec600d6 LCC |
1229 | memset(¶ms, 0, sizeof(params)); |
1230 | ||
3b85875a JB |
1231 | rtnl_lock(); |
1232 | ||
463d0183 | 1233 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1234 | if (err) |
3b85875a JB |
1235 | goto unlock_rtnl; |
1236 | ||
04a773ad | 1237 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1238 | |
723b038d | 1239 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1240 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1241 | if (otype != ntype) |
ac7f9cfa | 1242 | change = true; |
04a773ad | 1243 | if (ntype > NL80211_IFTYPE_MAX) { |
ac7f9cfa | 1244 | err = -EINVAL; |
723b038d | 1245 | goto unlock; |
ac7f9cfa | 1246 | } |
723b038d JB |
1247 | } |
1248 | ||
92ffe055 | 1249 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
04a773ad | 1250 | if (ntype != NL80211_IFTYPE_MESH_POINT) { |
92ffe055 JB |
1251 | err = -EINVAL; |
1252 | goto unlock; | |
1253 | } | |
2ec600d6 LCC |
1254 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1255 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1256 | change = true; |
2ec600d6 LCC |
1257 | } |
1258 | ||
8b787643 FF |
1259 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1260 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1261 | change = true; | |
ad4bb6f8 | 1262 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de JB |
1263 | if (err) |
1264 | goto unlock; | |
8b787643 FF |
1265 | } else { |
1266 | params.use_4addr = -1; | |
1267 | } | |
1268 | ||
92ffe055 | 1269 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
04a773ad | 1270 | if (ntype != NL80211_IFTYPE_MONITOR) { |
92ffe055 JB |
1271 | err = -EINVAL; |
1272 | goto unlock; | |
1273 | } | |
1274 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], | |
1275 | &_flags); | |
ac7f9cfa JB |
1276 | if (err) |
1277 | goto unlock; | |
1278 | ||
1279 | flags = &_flags; | |
1280 | change = true; | |
92ffe055 | 1281 | } |
3b85875a | 1282 | |
ac7f9cfa | 1283 | if (change) |
3d54d255 | 1284 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1285 | else |
1286 | err = 0; | |
60719ffd | 1287 | |
9bc383de JB |
1288 | if (!err && params.use_4addr != -1) |
1289 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1290 | ||
55682965 | 1291 | unlock: |
e36d56b6 | 1292 | dev_put(dev); |
79c97e97 | 1293 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1294 | unlock_rtnl: |
1295 | rtnl_unlock(); | |
55682965 JB |
1296 | return err; |
1297 | } | |
1298 | ||
1299 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1300 | { | |
79c97e97 | 1301 | struct cfg80211_registered_device *rdev; |
2ec600d6 | 1302 | struct vif_params params; |
55682965 JB |
1303 | int err; |
1304 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1305 | u32 flags; |
55682965 | 1306 | |
2ec600d6 LCC |
1307 | memset(¶ms, 0, sizeof(params)); |
1308 | ||
55682965 JB |
1309 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1310 | return -EINVAL; | |
1311 | ||
1312 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1313 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1314 | if (type > NL80211_IFTYPE_MAX) | |
1315 | return -EINVAL; | |
1316 | } | |
1317 | ||
3b85875a JB |
1318 | rtnl_lock(); |
1319 | ||
79c97e97 JB |
1320 | rdev = cfg80211_get_dev_from_info(info); |
1321 | if (IS_ERR(rdev)) { | |
1322 | err = PTR_ERR(rdev); | |
3b85875a JB |
1323 | goto unlock_rtnl; |
1324 | } | |
55682965 | 1325 | |
79c97e97 JB |
1326 | if (!rdev->ops->add_virtual_intf || |
1327 | !(rdev->wiphy.interface_modes & (1 << type))) { | |
55682965 JB |
1328 | err = -EOPNOTSUPP; |
1329 | goto unlock; | |
1330 | } | |
1331 | ||
2ec600d6 LCC |
1332 | if (type == NL80211_IFTYPE_MESH_POINT && |
1333 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1334 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1335 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1336 | } | |
1337 | ||
9bc383de | 1338 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1339 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1340 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de JB |
1341 | if (err) |
1342 | goto unlock; | |
1343 | } | |
8b787643 | 1344 | |
66f7ac50 MW |
1345 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1346 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1347 | &flags); | |
79c97e97 | 1348 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1349 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1350 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1351 | |
55682965 | 1352 | unlock: |
79c97e97 | 1353 | cfg80211_unlock_rdev(rdev); |
3b85875a JB |
1354 | unlock_rtnl: |
1355 | rtnl_unlock(); | |
55682965 JB |
1356 | return err; |
1357 | } | |
1358 | ||
1359 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1360 | { | |
79c97e97 | 1361 | struct cfg80211_registered_device *rdev; |
463d0183 | 1362 | int err; |
55682965 JB |
1363 | struct net_device *dev; |
1364 | ||
3b85875a JB |
1365 | rtnl_lock(); |
1366 | ||
463d0183 | 1367 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
55682965 | 1368 | if (err) |
3b85875a | 1369 | goto unlock_rtnl; |
55682965 | 1370 | |
79c97e97 | 1371 | if (!rdev->ops->del_virtual_intf) { |
55682965 JB |
1372 | err = -EOPNOTSUPP; |
1373 | goto out; | |
1374 | } | |
1375 | ||
463d0183 | 1376 | err = rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1377 | |
1378 | out: | |
79c97e97 | 1379 | cfg80211_unlock_rdev(rdev); |
463d0183 | 1380 | dev_put(dev); |
3b85875a JB |
1381 | unlock_rtnl: |
1382 | rtnl_unlock(); | |
55682965 JB |
1383 | return err; |
1384 | } | |
1385 | ||
41ade00f JB |
1386 | struct get_key_cookie { |
1387 | struct sk_buff *msg; | |
1388 | int error; | |
b9454e83 | 1389 | int idx; |
41ade00f JB |
1390 | }; |
1391 | ||
1392 | static void get_key_callback(void *c, struct key_params *params) | |
1393 | { | |
b9454e83 | 1394 | struct nlattr *key; |
41ade00f JB |
1395 | struct get_key_cookie *cookie = c; |
1396 | ||
1397 | if (params->key) | |
1398 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1399 | params->key_len, params->key); | |
1400 | ||
1401 | if (params->seq) | |
1402 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1403 | params->seq_len, params->seq); | |
1404 | ||
1405 | if (params->cipher) | |
1406 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1407 | params->cipher); | |
1408 | ||
b9454e83 JB |
1409 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1410 | if (!key) | |
1411 | goto nla_put_failure; | |
1412 | ||
1413 | if (params->key) | |
1414 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1415 | params->key_len, params->key); | |
1416 | ||
1417 | if (params->seq) | |
1418 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1419 | params->seq_len, params->seq); | |
1420 | ||
1421 | if (params->cipher) | |
1422 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1423 | params->cipher); | |
1424 | ||
1425 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1426 | ||
1427 | nla_nest_end(cookie->msg, key); | |
1428 | ||
41ade00f JB |
1429 | return; |
1430 | nla_put_failure: | |
1431 | cookie->error = 1; | |
1432 | } | |
1433 | ||
1434 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1435 | { | |
79c97e97 | 1436 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1437 | int err; |
1438 | struct net_device *dev; | |
1439 | u8 key_idx = 0; | |
1440 | u8 *mac_addr = NULL; | |
1441 | struct get_key_cookie cookie = { | |
1442 | .error = 0, | |
1443 | }; | |
1444 | void *hdr; | |
1445 | struct sk_buff *msg; | |
1446 | ||
1447 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1448 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1449 | ||
3cfcf6ac | 1450 | if (key_idx > 5) |
41ade00f JB |
1451 | return -EINVAL; |
1452 | ||
1453 | if (info->attrs[NL80211_ATTR_MAC]) | |
1454 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1455 | ||
3b85875a JB |
1456 | rtnl_lock(); |
1457 | ||
463d0183 | 1458 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1459 | if (err) |
3b85875a | 1460 | goto unlock_rtnl; |
41ade00f | 1461 | |
79c97e97 | 1462 | if (!rdev->ops->get_key) { |
41ade00f JB |
1463 | err = -EOPNOTSUPP; |
1464 | goto out; | |
1465 | } | |
1466 | ||
fd2120ca | 1467 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
41ade00f JB |
1468 | if (!msg) { |
1469 | err = -ENOMEM; | |
1470 | goto out; | |
1471 | } | |
1472 | ||
1473 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1474 | NL80211_CMD_NEW_KEY); | |
1475 | ||
1476 | if (IS_ERR(hdr)) { | |
1477 | err = PTR_ERR(hdr); | |
6c95e2a2 | 1478 | goto free_msg; |
41ade00f JB |
1479 | } |
1480 | ||
1481 | cookie.msg = msg; | |
b9454e83 | 1482 | cookie.idx = key_idx; |
41ade00f JB |
1483 | |
1484 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1485 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1486 | if (mac_addr) | |
1487 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1488 | ||
79c97e97 | 1489 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1490 | &cookie, get_key_callback); |
41ade00f JB |
1491 | |
1492 | if (err) | |
6c95e2a2 | 1493 | goto free_msg; |
41ade00f JB |
1494 | |
1495 | if (cookie.error) | |
1496 | goto nla_put_failure; | |
1497 | ||
1498 | genlmsg_end(msg, hdr); | |
134e6375 | 1499 | err = genlmsg_reply(msg, info); |
41ade00f JB |
1500 | goto out; |
1501 | ||
1502 | nla_put_failure: | |
1503 | err = -ENOBUFS; | |
6c95e2a2 | 1504 | free_msg: |
41ade00f JB |
1505 | nlmsg_free(msg); |
1506 | out: | |
79c97e97 | 1507 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1508 | dev_put(dev); |
3b85875a JB |
1509 | unlock_rtnl: |
1510 | rtnl_unlock(); | |
1511 | ||
41ade00f JB |
1512 | return err; |
1513 | } | |
1514 | ||
1515 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1516 | { | |
79c97e97 | 1517 | struct cfg80211_registered_device *rdev; |
b9454e83 | 1518 | struct key_parse key; |
41ade00f JB |
1519 | int err; |
1520 | struct net_device *dev; | |
3cfcf6ac JM |
1521 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1522 | u8 key_index); | |
41ade00f | 1523 | |
b9454e83 JB |
1524 | err = nl80211_parse_key(info, &key); |
1525 | if (err) | |
1526 | return err; | |
41ade00f | 1527 | |
b9454e83 | 1528 | if (key.idx < 0) |
41ade00f JB |
1529 | return -EINVAL; |
1530 | ||
b9454e83 JB |
1531 | /* only support setting default key */ |
1532 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1533 | return -EINVAL; |
1534 | ||
3b85875a JB |
1535 | rtnl_lock(); |
1536 | ||
463d0183 | 1537 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1538 | if (err) |
3b85875a | 1539 | goto unlock_rtnl; |
41ade00f | 1540 | |
b9454e83 | 1541 | if (key.def) |
79c97e97 | 1542 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1543 | else |
79c97e97 | 1544 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac JM |
1545 | |
1546 | if (!func) { | |
41ade00f JB |
1547 | err = -EOPNOTSUPP; |
1548 | goto out; | |
1549 | } | |
1550 | ||
fffd0934 JB |
1551 | wdev_lock(dev->ieee80211_ptr); |
1552 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1553 | if (!err) | |
1554 | err = func(&rdev->wiphy, dev, key.idx); | |
1555 | ||
3d23e349 | 1556 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1557 | if (!err) { |
79c97e97 | 1558 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1559 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1560 | else |
b9454e83 | 1561 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1562 | } |
1563 | #endif | |
fffd0934 | 1564 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f JB |
1565 | |
1566 | out: | |
79c97e97 | 1567 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1568 | dev_put(dev); |
3b85875a JB |
1569 | |
1570 | unlock_rtnl: | |
1571 | rtnl_unlock(); | |
1572 | ||
41ade00f JB |
1573 | return err; |
1574 | } | |
1575 | ||
1576 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1577 | { | |
79c97e97 | 1578 | struct cfg80211_registered_device *rdev; |
fffd0934 | 1579 | int err; |
41ade00f | 1580 | struct net_device *dev; |
b9454e83 | 1581 | struct key_parse key; |
41ade00f JB |
1582 | u8 *mac_addr = NULL; |
1583 | ||
b9454e83 JB |
1584 | err = nl80211_parse_key(info, &key); |
1585 | if (err) | |
1586 | return err; | |
41ade00f | 1587 | |
b9454e83 | 1588 | if (!key.p.key) |
41ade00f JB |
1589 | return -EINVAL; |
1590 | ||
41ade00f JB |
1591 | if (info->attrs[NL80211_ATTR_MAC]) |
1592 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1593 | ||
3b85875a JB |
1594 | rtnl_lock(); |
1595 | ||
463d0183 | 1596 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1597 | if (err) |
3b85875a | 1598 | goto unlock_rtnl; |
41ade00f | 1599 | |
fffd0934 JB |
1600 | if (!rdev->ops->add_key) { |
1601 | err = -EOPNOTSUPP; | |
25e47c18 JB |
1602 | goto out; |
1603 | } | |
1604 | ||
fffd0934 JB |
1605 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) { |
1606 | err = -EINVAL; | |
41ade00f JB |
1607 | goto out; |
1608 | } | |
1609 | ||
fffd0934 JB |
1610 | wdev_lock(dev->ieee80211_ptr); |
1611 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1612 | if (!err) | |
1613 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1614 | mac_addr, &key.p); | |
1615 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f JB |
1616 | |
1617 | out: | |
79c97e97 | 1618 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1619 | dev_put(dev); |
3b85875a JB |
1620 | unlock_rtnl: |
1621 | rtnl_unlock(); | |
1622 | ||
41ade00f JB |
1623 | return err; |
1624 | } | |
1625 | ||
1626 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1627 | { | |
79c97e97 | 1628 | struct cfg80211_registered_device *rdev; |
41ade00f JB |
1629 | int err; |
1630 | struct net_device *dev; | |
41ade00f | 1631 | u8 *mac_addr = NULL; |
b9454e83 | 1632 | struct key_parse key; |
41ade00f | 1633 | |
b9454e83 JB |
1634 | err = nl80211_parse_key(info, &key); |
1635 | if (err) | |
1636 | return err; | |
41ade00f JB |
1637 | |
1638 | if (info->attrs[NL80211_ATTR_MAC]) | |
1639 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1640 | ||
3b85875a JB |
1641 | rtnl_lock(); |
1642 | ||
463d0183 | 1643 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
41ade00f | 1644 | if (err) |
3b85875a | 1645 | goto unlock_rtnl; |
41ade00f | 1646 | |
79c97e97 | 1647 | if (!rdev->ops->del_key) { |
41ade00f JB |
1648 | err = -EOPNOTSUPP; |
1649 | goto out; | |
1650 | } | |
1651 | ||
fffd0934 JB |
1652 | wdev_lock(dev->ieee80211_ptr); |
1653 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1654 | if (!err) | |
1655 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1656 | |
3d23e349 | 1657 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1658 | if (!err) { |
b9454e83 | 1659 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1660 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1661 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1662 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1663 | } | |
1664 | #endif | |
fffd0934 | 1665 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1666 | |
41ade00f | 1667 | out: |
79c97e97 | 1668 | cfg80211_unlock_rdev(rdev); |
41ade00f | 1669 | dev_put(dev); |
3b85875a JB |
1670 | |
1671 | unlock_rtnl: | |
1672 | rtnl_unlock(); | |
1673 | ||
41ade00f JB |
1674 | return err; |
1675 | } | |
1676 | ||
ed1b6cc7 JB |
1677 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1678 | { | |
1679 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1680 | struct beacon_parameters *info); | |
79c97e97 | 1681 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1682 | int err; |
1683 | struct net_device *dev; | |
1684 | struct beacon_parameters params; | |
1685 | int haveinfo = 0; | |
1686 | ||
f4a11bb0 JB |
1687 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1688 | return -EINVAL; | |
1689 | ||
3b85875a JB |
1690 | rtnl_lock(); |
1691 | ||
463d0183 | 1692 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1693 | if (err) |
3b85875a | 1694 | goto unlock_rtnl; |
ed1b6cc7 | 1695 | |
eec60b03 JM |
1696 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1697 | err = -EOPNOTSUPP; | |
1698 | goto out; | |
1699 | } | |
1700 | ||
ed1b6cc7 JB |
1701 | switch (info->genlhdr->cmd) { |
1702 | case NL80211_CMD_NEW_BEACON: | |
1703 | /* these are required for NEW_BEACON */ | |
1704 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1705 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
1706 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1707 | err = -EINVAL; | |
1708 | goto out; | |
1709 | } | |
1710 | ||
79c97e97 | 1711 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1712 | break; |
1713 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1714 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1715 | break; |
1716 | default: | |
1717 | WARN_ON(1); | |
1718 | err = -EOPNOTSUPP; | |
1719 | goto out; | |
1720 | } | |
1721 | ||
1722 | if (!call) { | |
1723 | err = -EOPNOTSUPP; | |
1724 | goto out; | |
1725 | } | |
1726 | ||
1727 | memset(¶ms, 0, sizeof(params)); | |
1728 | ||
1729 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1730 | params.interval = | |
1731 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1732 | haveinfo = 1; | |
1733 | } | |
1734 | ||
1735 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1736 | params.dtim_period = | |
1737 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1738 | haveinfo = 1; | |
1739 | } | |
1740 | ||
1741 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1742 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1743 | params.head_len = | |
1744 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1745 | haveinfo = 1; | |
1746 | } | |
1747 | ||
1748 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1749 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1750 | params.tail_len = | |
1751 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1752 | haveinfo = 1; | |
1753 | } | |
1754 | ||
1755 | if (!haveinfo) { | |
1756 | err = -EINVAL; | |
1757 | goto out; | |
1758 | } | |
1759 | ||
79c97e97 | 1760 | err = call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1761 | |
1762 | out: | |
79c97e97 | 1763 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1764 | dev_put(dev); |
3b85875a JB |
1765 | unlock_rtnl: |
1766 | rtnl_unlock(); | |
1767 | ||
ed1b6cc7 JB |
1768 | return err; |
1769 | } | |
1770 | ||
1771 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1772 | { | |
79c97e97 | 1773 | struct cfg80211_registered_device *rdev; |
ed1b6cc7 JB |
1774 | int err; |
1775 | struct net_device *dev; | |
1776 | ||
3b85875a JB |
1777 | rtnl_lock(); |
1778 | ||
463d0183 | 1779 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
ed1b6cc7 | 1780 | if (err) |
3b85875a | 1781 | goto unlock_rtnl; |
ed1b6cc7 | 1782 | |
79c97e97 | 1783 | if (!rdev->ops->del_beacon) { |
ed1b6cc7 JB |
1784 | err = -EOPNOTSUPP; |
1785 | goto out; | |
1786 | } | |
1787 | ||
eec60b03 JM |
1788 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
1789 | err = -EOPNOTSUPP; | |
1790 | goto out; | |
1791 | } | |
79c97e97 | 1792 | err = rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1793 | |
1794 | out: | |
79c97e97 | 1795 | cfg80211_unlock_rdev(rdev); |
ed1b6cc7 | 1796 | dev_put(dev); |
3b85875a JB |
1797 | unlock_rtnl: |
1798 | rtnl_unlock(); | |
1799 | ||
ed1b6cc7 JB |
1800 | return err; |
1801 | } | |
1802 | ||
5727ef1b JB |
1803 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1804 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1805 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1806 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1807 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1808 | }; |
1809 | ||
eccb8e8f JB |
1810 | static int parse_station_flags(struct genl_info *info, |
1811 | struct station_parameters *params) | |
5727ef1b JB |
1812 | { |
1813 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1814 | struct nlattr *nla; |
5727ef1b JB |
1815 | int flag; |
1816 | ||
eccb8e8f JB |
1817 | /* |
1818 | * Try parsing the new attribute first so userspace | |
1819 | * can specify both for older kernels. | |
1820 | */ | |
1821 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1822 | if (nla) { | |
1823 | struct nl80211_sta_flag_update *sta_flags; | |
1824 | ||
1825 | sta_flags = nla_data(nla); | |
1826 | params->sta_flags_mask = sta_flags->mask; | |
1827 | params->sta_flags_set = sta_flags->set; | |
1828 | if ((params->sta_flags_mask | | |
1829 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1830 | return -EINVAL; | |
1831 | return 0; | |
1832 | } | |
1833 | ||
1834 | /* if present, parse the old attribute */ | |
5727ef1b | 1835 | |
eccb8e8f | 1836 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1837 | if (!nla) |
1838 | return 0; | |
1839 | ||
1840 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1841 | nla, sta_flags_policy)) | |
1842 | return -EINVAL; | |
1843 | ||
eccb8e8f JB |
1844 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1845 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1846 | |
1847 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1848 | if (flags[flag]) | |
eccb8e8f | 1849 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1850 | |
1851 | return 0; | |
1852 | } | |
1853 | ||
fd5b74dc JB |
1854 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1855 | int flags, struct net_device *dev, | |
98b62183 | 1856 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1857 | { |
1858 | void *hdr; | |
420e7fab HR |
1859 | struct nlattr *sinfoattr, *txrate; |
1860 | u16 bitrate; | |
fd5b74dc JB |
1861 | |
1862 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1863 | if (!hdr) | |
1864 | return -1; | |
1865 | ||
1866 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1867 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1868 | ||
f5ea9120 JB |
1869 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1870 | ||
2ec600d6 LCC |
1871 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1872 | if (!sinfoattr) | |
fd5b74dc | 1873 | goto nla_put_failure; |
2ec600d6 LCC |
1874 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1875 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1876 | sinfo->inactive_time); | |
1877 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1878 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1879 | sinfo->rx_bytes); | |
1880 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1881 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1882 | sinfo->tx_bytes); | |
1883 | if (sinfo->filled & STATION_INFO_LLID) | |
1884 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1885 | sinfo->llid); | |
1886 | if (sinfo->filled & STATION_INFO_PLID) | |
1887 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1888 | sinfo->plid); | |
1889 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1890 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1891 | sinfo->plink_state); | |
420e7fab HR |
1892 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1893 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1894 | sinfo->signal); | |
1895 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1896 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1897 | if (!txrate) | |
1898 | goto nla_put_failure; | |
1899 | ||
254416aa JL |
1900 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1901 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1902 | if (bitrate > 0) |
1903 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1904 | |
420e7fab HR |
1905 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1906 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1907 | sinfo->txrate.mcs); | |
1908 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1909 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1910 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1911 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1912 | ||
1913 | nla_nest_end(msg, txrate); | |
1914 | } | |
98c8a60a JM |
1915 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1916 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1917 | sinfo->rx_packets); | |
1918 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1919 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1920 | sinfo->tx_packets); | |
2ec600d6 | 1921 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1922 | |
1923 | return genlmsg_end(msg, hdr); | |
1924 | ||
1925 | nla_put_failure: | |
bc3ed28c TG |
1926 | genlmsg_cancel(msg, hdr); |
1927 | return -EMSGSIZE; | |
fd5b74dc JB |
1928 | } |
1929 | ||
2ec600d6 | 1930 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1931 | struct netlink_callback *cb) |
2ec600d6 | 1932 | { |
2ec600d6 LCC |
1933 | struct station_info sinfo; |
1934 | struct cfg80211_registered_device *dev; | |
bba95fef | 1935 | struct net_device *netdev; |
2ec600d6 | 1936 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1937 | int ifidx = cb->args[0]; |
1938 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1939 | int err; |
2ec600d6 | 1940 | |
a043897a HS |
1941 | if (!ifidx) |
1942 | ifidx = nl80211_get_ifidx(cb); | |
1943 | if (ifidx < 0) | |
1944 | return ifidx; | |
2ec600d6 | 1945 | |
3b85875a JB |
1946 | rtnl_lock(); |
1947 | ||
463d0183 | 1948 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1949 | if (!netdev) { |
1950 | err = -ENODEV; | |
1951 | goto out_rtnl; | |
1952 | } | |
2ec600d6 | 1953 | |
463d0183 | 1954 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1955 | if (IS_ERR(dev)) { |
1956 | err = PTR_ERR(dev); | |
3b85875a | 1957 | goto out_rtnl; |
bba95fef JB |
1958 | } |
1959 | ||
1960 | if (!dev->ops->dump_station) { | |
eec60b03 | 1961 | err = -EOPNOTSUPP; |
bba95fef JB |
1962 | goto out_err; |
1963 | } | |
1964 | ||
bba95fef JB |
1965 | while (1) { |
1966 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1967 | mac_addr, &sinfo); | |
1968 | if (err == -ENOENT) | |
1969 | break; | |
1970 | if (err) | |
3b85875a | 1971 | goto out_err; |
bba95fef JB |
1972 | |
1973 | if (nl80211_send_station(skb, | |
1974 | NETLINK_CB(cb->skb).pid, | |
1975 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1976 | netdev, mac_addr, | |
1977 | &sinfo) < 0) | |
1978 | goto out; | |
1979 | ||
1980 | sta_idx++; | |
1981 | } | |
1982 | ||
1983 | ||
1984 | out: | |
1985 | cb->args[1] = sta_idx; | |
1986 | err = skb->len; | |
bba95fef | 1987 | out_err: |
4d0c8aea | 1988 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1989 | out_rtnl: |
1990 | rtnl_unlock(); | |
bba95fef JB |
1991 | |
1992 | return err; | |
2ec600d6 | 1993 | } |
fd5b74dc | 1994 | |
5727ef1b JB |
1995 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1996 | { | |
79c97e97 | 1997 | struct cfg80211_registered_device *rdev; |
fd5b74dc JB |
1998 | int err; |
1999 | struct net_device *dev; | |
2ec600d6 | 2000 | struct station_info sinfo; |
fd5b74dc JB |
2001 | struct sk_buff *msg; |
2002 | u8 *mac_addr = NULL; | |
2003 | ||
2ec600d6 | 2004 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
2005 | |
2006 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2007 | return -EINVAL; | |
2008 | ||
2009 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2010 | ||
3b85875a JB |
2011 | rtnl_lock(); |
2012 | ||
463d0183 | 2013 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
fd5b74dc | 2014 | if (err) |
3b85875a | 2015 | goto out_rtnl; |
fd5b74dc | 2016 | |
79c97e97 | 2017 | if (!rdev->ops->get_station) { |
fd5b74dc JB |
2018 | err = -EOPNOTSUPP; |
2019 | goto out; | |
2020 | } | |
2021 | ||
79c97e97 | 2022 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
2ec600d6 LCC |
2023 | if (err) |
2024 | goto out; | |
2025 | ||
fd2120ca | 2026 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc JB |
2027 | if (!msg) |
2028 | goto out; | |
2029 | ||
2030 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
2ec600d6 | 2031 | dev, mac_addr, &sinfo) < 0) |
fd5b74dc JB |
2032 | goto out_free; |
2033 | ||
134e6375 | 2034 | err = genlmsg_reply(msg, info); |
fd5b74dc JB |
2035 | goto out; |
2036 | ||
2037 | out_free: | |
2038 | nlmsg_free(msg); | |
fd5b74dc | 2039 | out: |
79c97e97 | 2040 | cfg80211_unlock_rdev(rdev); |
fd5b74dc | 2041 | dev_put(dev); |
3b85875a JB |
2042 | out_rtnl: |
2043 | rtnl_unlock(); | |
2044 | ||
fd5b74dc | 2045 | return err; |
5727ef1b JB |
2046 | } |
2047 | ||
2048 | /* | |
c258d2de | 2049 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 2050 | */ |
463d0183 | 2051 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
2052 | struct cfg80211_registered_device *rdev, |
2053 | struct net_device **vlan) | |
2054 | { | |
463d0183 | 2055 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
2056 | *vlan = NULL; |
2057 | ||
2058 | if (vlanattr) { | |
463d0183 JB |
2059 | *vlan = dev_get_by_index(genl_info_net(info), |
2060 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
2061 | if (!*vlan) |
2062 | return -ENODEV; | |
2063 | if (!(*vlan)->ieee80211_ptr) | |
2064 | return -EINVAL; | |
2065 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
2066 | return -EINVAL; | |
c258d2de FF |
2067 | if (!netif_running(*vlan)) |
2068 | return -ENETDOWN; | |
5727ef1b JB |
2069 | } |
2070 | return 0; | |
2071 | } | |
2072 | ||
2073 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2074 | { | |
79c97e97 | 2075 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2076 | int err; |
2077 | struct net_device *dev; | |
2078 | struct station_parameters params; | |
2079 | u8 *mac_addr = NULL; | |
2080 | ||
2081 | memset(¶ms, 0, sizeof(params)); | |
2082 | ||
2083 | params.listen_interval = -1; | |
2084 | ||
2085 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2086 | return -EINVAL; | |
2087 | ||
2088 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2089 | return -EINVAL; | |
2090 | ||
2091 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2092 | ||
2093 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2094 | params.supported_rates = | |
2095 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2096 | params.supported_rates_len = | |
2097 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2098 | } | |
2099 | ||
2100 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2101 | params.listen_interval = | |
2102 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2103 | ||
36aedc90 JM |
2104 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2105 | params.ht_capa = | |
2106 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2107 | ||
eccb8e8f | 2108 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2109 | return -EINVAL; |
2110 | ||
2ec600d6 LCC |
2111 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2112 | params.plink_action = | |
2113 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2114 | ||
3b85875a JB |
2115 | rtnl_lock(); |
2116 | ||
463d0183 | 2117 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2118 | if (err) |
3b85875a | 2119 | goto out_rtnl; |
5727ef1b | 2120 | |
463d0183 | 2121 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2122 | if (err) |
034d655e | 2123 | goto out; |
a97f4424 JB |
2124 | |
2125 | /* validate settings */ | |
2126 | err = 0; | |
2127 | ||
2128 | switch (dev->ieee80211_ptr->iftype) { | |
2129 | case NL80211_IFTYPE_AP: | |
2130 | case NL80211_IFTYPE_AP_VLAN: | |
2131 | /* disallow mesh-specific things */ | |
2132 | if (params.plink_action) | |
2133 | err = -EINVAL; | |
2134 | break; | |
2135 | case NL80211_IFTYPE_STATION: | |
2136 | /* disallow everything but AUTHORIZED flag */ | |
2137 | if (params.plink_action) | |
2138 | err = -EINVAL; | |
2139 | if (params.vlan) | |
2140 | err = -EINVAL; | |
2141 | if (params.supported_rates) | |
2142 | err = -EINVAL; | |
2143 | if (params.ht_capa) | |
2144 | err = -EINVAL; | |
2145 | if (params.listen_interval >= 0) | |
2146 | err = -EINVAL; | |
2147 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2148 | err = -EINVAL; | |
2149 | break; | |
2150 | case NL80211_IFTYPE_MESH_POINT: | |
2151 | /* disallow things mesh doesn't support */ | |
2152 | if (params.vlan) | |
2153 | err = -EINVAL; | |
2154 | if (params.ht_capa) | |
2155 | err = -EINVAL; | |
2156 | if (params.listen_interval >= 0) | |
2157 | err = -EINVAL; | |
2158 | if (params.supported_rates) | |
2159 | err = -EINVAL; | |
2160 | if (params.sta_flags_mask) | |
2161 | err = -EINVAL; | |
2162 | break; | |
2163 | default: | |
2164 | err = -EINVAL; | |
034d655e JB |
2165 | } |
2166 | ||
5727ef1b JB |
2167 | if (err) |
2168 | goto out; | |
2169 | ||
79c97e97 | 2170 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2171 | err = -EOPNOTSUPP; |
2172 | goto out; | |
2173 | } | |
2174 | ||
79c97e97 | 2175 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2176 | |
2177 | out: | |
2178 | if (params.vlan) | |
2179 | dev_put(params.vlan); | |
79c97e97 | 2180 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2181 | dev_put(dev); |
3b85875a JB |
2182 | out_rtnl: |
2183 | rtnl_unlock(); | |
2184 | ||
5727ef1b JB |
2185 | return err; |
2186 | } | |
2187 | ||
2188 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2189 | { | |
79c97e97 | 2190 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2191 | int err; |
2192 | struct net_device *dev; | |
2193 | struct station_parameters params; | |
2194 | u8 *mac_addr = NULL; | |
2195 | ||
2196 | memset(¶ms, 0, sizeof(params)); | |
2197 | ||
2198 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2199 | return -EINVAL; | |
2200 | ||
5727ef1b JB |
2201 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2202 | return -EINVAL; | |
2203 | ||
2204 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2205 | return -EINVAL; | |
2206 | ||
0e956c13 TLSC |
2207 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2208 | return -EINVAL; | |
2209 | ||
5727ef1b JB |
2210 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2211 | params.supported_rates = | |
2212 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2213 | params.supported_rates_len = | |
2214 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2215 | params.listen_interval = | |
2216 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2217 | |
0e956c13 TLSC |
2218 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2219 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2220 | return -EINVAL; | |
51b50fbe | 2221 | |
36aedc90 JM |
2222 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2223 | params.ht_capa = | |
2224 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2225 | |
eccb8e8f | 2226 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2227 | return -EINVAL; |
2228 | ||
3b85875a JB |
2229 | rtnl_lock(); |
2230 | ||
463d0183 | 2231 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2232 | if (err) |
3b85875a | 2233 | goto out_rtnl; |
5727ef1b | 2234 | |
0e956c13 TLSC |
2235 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
2236 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN) { | |
2237 | err = -EINVAL; | |
2238 | goto out; | |
2239 | } | |
2240 | ||
463d0183 | 2241 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2242 | if (err) |
e80cf853 | 2243 | goto out; |
a97f4424 JB |
2244 | |
2245 | /* validate settings */ | |
2246 | err = 0; | |
2247 | ||
79c97e97 | 2248 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2249 | err = -EOPNOTSUPP; |
2250 | goto out; | |
2251 | } | |
2252 | ||
35a8efe1 JM |
2253 | if (!netif_running(dev)) { |
2254 | err = -ENETDOWN; | |
2255 | goto out; | |
2256 | } | |
2257 | ||
79c97e97 | 2258 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2259 | |
2260 | out: | |
2261 | if (params.vlan) | |
2262 | dev_put(params.vlan); | |
79c97e97 | 2263 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2264 | dev_put(dev); |
3b85875a JB |
2265 | out_rtnl: |
2266 | rtnl_unlock(); | |
2267 | ||
5727ef1b JB |
2268 | return err; |
2269 | } | |
2270 | ||
2271 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2272 | { | |
79c97e97 | 2273 | struct cfg80211_registered_device *rdev; |
5727ef1b JB |
2274 | int err; |
2275 | struct net_device *dev; | |
2276 | u8 *mac_addr = NULL; | |
2277 | ||
2278 | if (info->attrs[NL80211_ATTR_MAC]) | |
2279 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2280 | ||
3b85875a JB |
2281 | rtnl_lock(); |
2282 | ||
463d0183 | 2283 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
5727ef1b | 2284 | if (err) |
3b85875a | 2285 | goto out_rtnl; |
5727ef1b | 2286 | |
e80cf853 | 2287 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 MP |
2288 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
2289 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { | |
e80cf853 JB |
2290 | err = -EINVAL; |
2291 | goto out; | |
2292 | } | |
2293 | ||
79c97e97 | 2294 | if (!rdev->ops->del_station) { |
5727ef1b JB |
2295 | err = -EOPNOTSUPP; |
2296 | goto out; | |
2297 | } | |
2298 | ||
79c97e97 | 2299 | err = rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2300 | |
2301 | out: | |
79c97e97 | 2302 | cfg80211_unlock_rdev(rdev); |
5727ef1b | 2303 | dev_put(dev); |
3b85875a JB |
2304 | out_rtnl: |
2305 | rtnl_unlock(); | |
2306 | ||
5727ef1b JB |
2307 | return err; |
2308 | } | |
2309 | ||
2ec600d6 LCC |
2310 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2311 | int flags, struct net_device *dev, | |
2312 | u8 *dst, u8 *next_hop, | |
2313 | struct mpath_info *pinfo) | |
2314 | { | |
2315 | void *hdr; | |
2316 | struct nlattr *pinfoattr; | |
2317 | ||
2318 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2319 | if (!hdr) | |
2320 | return -1; | |
2321 | ||
2322 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2323 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2324 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2325 | ||
f5ea9120 JB |
2326 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2327 | ||
2ec600d6 LCC |
2328 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2329 | if (!pinfoattr) | |
2330 | goto nla_put_failure; | |
2331 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2332 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2333 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2334 | if (pinfo->filled & MPATH_INFO_SN) |
2335 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2336 | pinfo->sn); | |
2ec600d6 LCC |
2337 | if (pinfo->filled & MPATH_INFO_METRIC) |
2338 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2339 | pinfo->metric); | |
2340 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2341 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2342 | pinfo->exptime); | |
2343 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2344 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2345 | pinfo->flags); | |
2346 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2347 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2348 | pinfo->discovery_timeout); | |
2349 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2350 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2351 | pinfo->discovery_retries); | |
2352 | ||
2353 | nla_nest_end(msg, pinfoattr); | |
2354 | ||
2355 | return genlmsg_end(msg, hdr); | |
2356 | ||
2357 | nla_put_failure: | |
bc3ed28c TG |
2358 | genlmsg_cancel(msg, hdr); |
2359 | return -EMSGSIZE; | |
2ec600d6 LCC |
2360 | } |
2361 | ||
2362 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2363 | struct netlink_callback *cb) |
2ec600d6 | 2364 | { |
2ec600d6 LCC |
2365 | struct mpath_info pinfo; |
2366 | struct cfg80211_registered_device *dev; | |
bba95fef | 2367 | struct net_device *netdev; |
2ec600d6 LCC |
2368 | u8 dst[ETH_ALEN]; |
2369 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2370 | int ifidx = cb->args[0]; |
2371 | int path_idx = cb->args[1]; | |
2ec600d6 | 2372 | int err; |
2ec600d6 | 2373 | |
a043897a HS |
2374 | if (!ifidx) |
2375 | ifidx = nl80211_get_ifidx(cb); | |
2376 | if (ifidx < 0) | |
2377 | return ifidx; | |
bba95fef | 2378 | |
3b85875a JB |
2379 | rtnl_lock(); |
2380 | ||
463d0183 | 2381 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2382 | if (!netdev) { |
2383 | err = -ENODEV; | |
2384 | goto out_rtnl; | |
2385 | } | |
bba95fef | 2386 | |
463d0183 | 2387 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2388 | if (IS_ERR(dev)) { |
2389 | err = PTR_ERR(dev); | |
3b85875a | 2390 | goto out_rtnl; |
bba95fef JB |
2391 | } |
2392 | ||
2393 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2394 | err = -EOPNOTSUPP; |
bba95fef JB |
2395 | goto out_err; |
2396 | } | |
2397 | ||
eec60b03 JM |
2398 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2399 | err = -EOPNOTSUPP; | |
0448b5fc | 2400 | goto out_err; |
eec60b03 JM |
2401 | } |
2402 | ||
bba95fef JB |
2403 | while (1) { |
2404 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2405 | dst, next_hop, &pinfo); | |
2406 | if (err == -ENOENT) | |
2ec600d6 | 2407 | break; |
bba95fef | 2408 | if (err) |
3b85875a | 2409 | goto out_err; |
2ec600d6 | 2410 | |
bba95fef JB |
2411 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2412 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2413 | netdev, dst, next_hop, | |
2414 | &pinfo) < 0) | |
2415 | goto out; | |
2ec600d6 | 2416 | |
bba95fef | 2417 | path_idx++; |
2ec600d6 | 2418 | } |
2ec600d6 | 2419 | |
2ec600d6 | 2420 | |
bba95fef JB |
2421 | out: |
2422 | cb->args[1] = path_idx; | |
2423 | err = skb->len; | |
bba95fef | 2424 | out_err: |
4d0c8aea | 2425 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2426 | out_rtnl: |
2427 | rtnl_unlock(); | |
bba95fef JB |
2428 | |
2429 | return err; | |
2ec600d6 LCC |
2430 | } |
2431 | ||
2432 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2433 | { | |
79c97e97 | 2434 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2435 | int err; |
2436 | struct net_device *dev; | |
2437 | struct mpath_info pinfo; | |
2438 | struct sk_buff *msg; | |
2439 | u8 *dst = NULL; | |
2440 | u8 next_hop[ETH_ALEN]; | |
2441 | ||
2442 | memset(&pinfo, 0, sizeof(pinfo)); | |
2443 | ||
2444 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2445 | return -EINVAL; | |
2446 | ||
2447 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2448 | ||
3b85875a JB |
2449 | rtnl_lock(); |
2450 | ||
463d0183 | 2451 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2452 | if (err) |
3b85875a | 2453 | goto out_rtnl; |
2ec600d6 | 2454 | |
79c97e97 | 2455 | if (!rdev->ops->get_mpath) { |
2ec600d6 LCC |
2456 | err = -EOPNOTSUPP; |
2457 | goto out; | |
2458 | } | |
2459 | ||
eec60b03 JM |
2460 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2461 | err = -EOPNOTSUPP; | |
2462 | goto out; | |
2463 | } | |
2464 | ||
79c97e97 | 2465 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 LCC |
2466 | if (err) |
2467 | goto out; | |
2468 | ||
fd2120ca | 2469 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 LCC |
2470 | if (!msg) |
2471 | goto out; | |
2472 | ||
2473 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
2474 | dev, dst, next_hop, &pinfo) < 0) | |
2475 | goto out_free; | |
2476 | ||
134e6375 | 2477 | err = genlmsg_reply(msg, info); |
2ec600d6 LCC |
2478 | goto out; |
2479 | ||
2480 | out_free: | |
2481 | nlmsg_free(msg); | |
2ec600d6 | 2482 | out: |
79c97e97 | 2483 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2484 | dev_put(dev); |
3b85875a JB |
2485 | out_rtnl: |
2486 | rtnl_unlock(); | |
2487 | ||
2ec600d6 LCC |
2488 | return err; |
2489 | } | |
2490 | ||
2491 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2492 | { | |
79c97e97 | 2493 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2494 | int err; |
2495 | struct net_device *dev; | |
2496 | u8 *dst = NULL; | |
2497 | u8 *next_hop = NULL; | |
2498 | ||
2499 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2500 | return -EINVAL; | |
2501 | ||
2502 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2503 | return -EINVAL; | |
2504 | ||
2505 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2506 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2507 | ||
3b85875a JB |
2508 | rtnl_lock(); |
2509 | ||
463d0183 | 2510 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2511 | if (err) |
3b85875a | 2512 | goto out_rtnl; |
2ec600d6 | 2513 | |
79c97e97 | 2514 | if (!rdev->ops->change_mpath) { |
2ec600d6 LCC |
2515 | err = -EOPNOTSUPP; |
2516 | goto out; | |
2517 | } | |
2518 | ||
eec60b03 JM |
2519 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2520 | err = -EOPNOTSUPP; | |
2521 | goto out; | |
2522 | } | |
2523 | ||
35a8efe1 JM |
2524 | if (!netif_running(dev)) { |
2525 | err = -ENETDOWN; | |
2526 | goto out; | |
2527 | } | |
2528 | ||
79c97e97 | 2529 | err = rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2530 | |
2531 | out: | |
79c97e97 | 2532 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2533 | dev_put(dev); |
3b85875a JB |
2534 | out_rtnl: |
2535 | rtnl_unlock(); | |
2536 | ||
2ec600d6 LCC |
2537 | return err; |
2538 | } | |
2539 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) | |
2540 | { | |
79c97e97 | 2541 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2542 | int err; |
2543 | struct net_device *dev; | |
2544 | u8 *dst = NULL; | |
2545 | u8 *next_hop = NULL; | |
2546 | ||
2547 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2548 | return -EINVAL; | |
2549 | ||
2550 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2551 | return -EINVAL; | |
2552 | ||
2553 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2554 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2555 | ||
3b85875a JB |
2556 | rtnl_lock(); |
2557 | ||
463d0183 | 2558 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2559 | if (err) |
3b85875a | 2560 | goto out_rtnl; |
2ec600d6 | 2561 | |
79c97e97 | 2562 | if (!rdev->ops->add_mpath) { |
2ec600d6 LCC |
2563 | err = -EOPNOTSUPP; |
2564 | goto out; | |
2565 | } | |
2566 | ||
eec60b03 JM |
2567 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2568 | err = -EOPNOTSUPP; | |
2569 | goto out; | |
2570 | } | |
2571 | ||
35a8efe1 JM |
2572 | if (!netif_running(dev)) { |
2573 | err = -ENETDOWN; | |
2574 | goto out; | |
2575 | } | |
2576 | ||
79c97e97 | 2577 | err = rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2578 | |
2579 | out: | |
79c97e97 | 2580 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2581 | dev_put(dev); |
3b85875a JB |
2582 | out_rtnl: |
2583 | rtnl_unlock(); | |
2584 | ||
2ec600d6 LCC |
2585 | return err; |
2586 | } | |
2587 | ||
2588 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2589 | { | |
79c97e97 | 2590 | struct cfg80211_registered_device *rdev; |
2ec600d6 LCC |
2591 | int err; |
2592 | struct net_device *dev; | |
2593 | u8 *dst = NULL; | |
2594 | ||
2595 | if (info->attrs[NL80211_ATTR_MAC]) | |
2596 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2597 | ||
3b85875a JB |
2598 | rtnl_lock(); |
2599 | ||
463d0183 | 2600 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2ec600d6 | 2601 | if (err) |
3b85875a | 2602 | goto out_rtnl; |
2ec600d6 | 2603 | |
79c97e97 | 2604 | if (!rdev->ops->del_mpath) { |
2ec600d6 LCC |
2605 | err = -EOPNOTSUPP; |
2606 | goto out; | |
2607 | } | |
2608 | ||
79c97e97 | 2609 | err = rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2610 | |
2611 | out: | |
79c97e97 | 2612 | cfg80211_unlock_rdev(rdev); |
2ec600d6 | 2613 | dev_put(dev); |
3b85875a JB |
2614 | out_rtnl: |
2615 | rtnl_unlock(); | |
2616 | ||
2ec600d6 LCC |
2617 | return err; |
2618 | } | |
2619 | ||
9f1ba906 JM |
2620 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2621 | { | |
79c97e97 | 2622 | struct cfg80211_registered_device *rdev; |
9f1ba906 JM |
2623 | int err; |
2624 | struct net_device *dev; | |
2625 | struct bss_parameters params; | |
2626 | ||
2627 | memset(¶ms, 0, sizeof(params)); | |
2628 | /* default to not changing parameters */ | |
2629 | params.use_cts_prot = -1; | |
2630 | params.use_short_preamble = -1; | |
2631 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2632 | params.ap_isolate = -1; |
9f1ba906 JM |
2633 | |
2634 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2635 | params.use_cts_prot = | |
2636 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2637 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2638 | params.use_short_preamble = | |
2639 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2640 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2641 | params.use_short_slot_time = | |
2642 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2643 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2644 | params.basic_rates = | |
2645 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2646 | params.basic_rates_len = | |
2647 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2648 | } | |
fd8aaaf3 FF |
2649 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2650 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2651 | |
3b85875a JB |
2652 | rtnl_lock(); |
2653 | ||
463d0183 | 2654 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
9f1ba906 | 2655 | if (err) |
3b85875a | 2656 | goto out_rtnl; |
9f1ba906 | 2657 | |
79c97e97 | 2658 | if (!rdev->ops->change_bss) { |
9f1ba906 JM |
2659 | err = -EOPNOTSUPP; |
2660 | goto out; | |
2661 | } | |
2662 | ||
eec60b03 JM |
2663 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP) { |
2664 | err = -EOPNOTSUPP; | |
2665 | goto out; | |
2666 | } | |
2667 | ||
79c97e97 | 2668 | err = rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2669 | |
2670 | out: | |
79c97e97 | 2671 | cfg80211_unlock_rdev(rdev); |
9f1ba906 | 2672 | dev_put(dev); |
3b85875a JB |
2673 | out_rtnl: |
2674 | rtnl_unlock(); | |
2675 | ||
9f1ba906 JM |
2676 | return err; |
2677 | } | |
2678 | ||
b54452b0 | 2679 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2680 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2681 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2682 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2683 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2684 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2685 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2686 | }; | |
2687 | ||
2688 | static int parse_reg_rule(struct nlattr *tb[], | |
2689 | struct ieee80211_reg_rule *reg_rule) | |
2690 | { | |
2691 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2692 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2693 | ||
2694 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2695 | return -EINVAL; | |
2696 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2697 | return -EINVAL; | |
2698 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2699 | return -EINVAL; | |
2700 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2701 | return -EINVAL; | |
2702 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2703 | return -EINVAL; | |
2704 | ||
2705 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2706 | ||
2707 | freq_range->start_freq_khz = | |
2708 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2709 | freq_range->end_freq_khz = | |
2710 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2711 | freq_range->max_bandwidth_khz = | |
2712 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2713 | ||
2714 | power_rule->max_eirp = | |
2715 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2716 | ||
2717 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2718 | power_rule->max_antenna_gain = | |
2719 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2720 | ||
2721 | return 0; | |
2722 | } | |
2723 | ||
2724 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2725 | { | |
2726 | int r; | |
2727 | char *data = NULL; | |
2728 | ||
80778f18 LR |
2729 | /* |
2730 | * You should only get this when cfg80211 hasn't yet initialized | |
2731 | * completely when built-in to the kernel right between the time | |
2732 | * window between nl80211_init() and regulatory_init(), if that is | |
2733 | * even possible. | |
2734 | */ | |
2735 | mutex_lock(&cfg80211_mutex); | |
2736 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2737 | mutex_unlock(&cfg80211_mutex); |
2738 | return -EINPROGRESS; | |
80778f18 | 2739 | } |
fe33eb39 | 2740 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2741 | |
fe33eb39 LR |
2742 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2743 | return -EINVAL; | |
b2e1b302 LR |
2744 | |
2745 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2746 | ||
fe33eb39 LR |
2747 | r = regulatory_hint_user(data); |
2748 | ||
b2e1b302 LR |
2749 | return r; |
2750 | } | |
2751 | ||
93da9cc1 | 2752 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2753 | struct genl_info *info) | |
2754 | { | |
79c97e97 | 2755 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2756 | struct mesh_config cur_params; |
2757 | int err; | |
2758 | struct net_device *dev; | |
2759 | void *hdr; | |
2760 | struct nlattr *pinfoattr; | |
2761 | struct sk_buff *msg; | |
2762 | ||
3b85875a JB |
2763 | rtnl_lock(); |
2764 | ||
93da9cc1 | 2765 | /* Look up our device */ |
463d0183 | 2766 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2767 | if (err) |
3b85875a | 2768 | goto out_rtnl; |
93da9cc1 | 2769 | |
79c97e97 | 2770 | if (!rdev->ops->get_mesh_params) { |
f3f92586 JM |
2771 | err = -EOPNOTSUPP; |
2772 | goto out; | |
2773 | } | |
2774 | ||
93da9cc1 | 2775 | /* Get the mesh params */ |
79c97e97 | 2776 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2777 | if (err) |
2778 | goto out; | |
2779 | ||
2780 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2781 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
93da9cc1 | 2782 | if (!msg) { |
2783 | err = -ENOBUFS; | |
2784 | goto out; | |
2785 | } | |
2786 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2787 | NL80211_CMD_GET_MESH_PARAMS); | |
2788 | if (!hdr) | |
2789 | goto nla_put_failure; | |
2790 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2791 | if (!pinfoattr) | |
2792 | goto nla_put_failure; | |
2793 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2794 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2795 | cur_params.dot11MeshRetryTimeout); | |
2796 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2797 | cur_params.dot11MeshConfirmTimeout); | |
2798 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2799 | cur_params.dot11MeshHoldingTimeout); | |
2800 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2801 | cur_params.dot11MeshMaxPeerLinks); | |
2802 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2803 | cur_params.dot11MeshMaxRetries); | |
2804 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2805 | cur_params.dot11MeshTTL); | |
2806 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2807 | cur_params.auto_open_plinks); | |
2808 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2809 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2810 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2811 | cur_params.path_refresh_time); | |
2812 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2813 | cur_params.min_discovery_timeout); | |
2814 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2815 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2816 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2817 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2818 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2819 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2820 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2821 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2822 | nla_nest_end(msg, pinfoattr); |
2823 | genlmsg_end(msg, hdr); | |
134e6375 | 2824 | err = genlmsg_reply(msg, info); |
93da9cc1 | 2825 | goto out; |
2826 | ||
3b85875a | 2827 | nla_put_failure: |
93da9cc1 | 2828 | genlmsg_cancel(msg, hdr); |
d080e275 | 2829 | nlmsg_free(msg); |
93da9cc1 | 2830 | err = -EMSGSIZE; |
3b85875a | 2831 | out: |
93da9cc1 | 2832 | /* Cleanup */ |
79c97e97 | 2833 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2834 | dev_put(dev); |
3b85875a JB |
2835 | out_rtnl: |
2836 | rtnl_unlock(); | |
2837 | ||
93da9cc1 | 2838 | return err; |
2839 | } | |
2840 | ||
2841 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2842 | do {\ | |
2843 | if (table[attr_num]) {\ | |
2844 | cfg.param = nla_fn(table[attr_num]); \ | |
2845 | mask |= (1 << (attr_num - 1)); \ | |
2846 | } \ | |
2847 | } while (0);\ | |
2848 | ||
b54452b0 | 2849 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2850 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2851 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2852 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2853 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2854 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2855 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2856 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2857 | ||
2858 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2859 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2860 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2861 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2862 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2863 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2864 | }; | |
2865 | ||
2866 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2867 | { | |
2868 | int err; | |
2869 | u32 mask; | |
79c97e97 | 2870 | struct cfg80211_registered_device *rdev; |
93da9cc1 | 2871 | struct net_device *dev; |
2872 | struct mesh_config cfg; | |
2873 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2874 | struct nlattr *parent_attr; | |
2875 | ||
2876 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2877 | if (!parent_attr) | |
2878 | return -EINVAL; | |
2879 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2880 | parent_attr, nl80211_meshconf_params_policy)) | |
2881 | return -EINVAL; | |
2882 | ||
3b85875a JB |
2883 | rtnl_lock(); |
2884 | ||
463d0183 | 2885 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
93da9cc1 | 2886 | if (err) |
3b85875a | 2887 | goto out_rtnl; |
93da9cc1 | 2888 | |
79c97e97 | 2889 | if (!rdev->ops->set_mesh_params) { |
f3f92586 JM |
2890 | err = -EOPNOTSUPP; |
2891 | goto out; | |
2892 | } | |
2893 | ||
93da9cc1 | 2894 | /* This makes sure that there aren't more than 32 mesh config |
2895 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2896 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2897 | ||
2898 | /* Fill in the params struct */ | |
2899 | mask = 0; | |
2900 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2901 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2902 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2903 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2904 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2905 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2906 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2907 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2908 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2909 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2910 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2911 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2912 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2913 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2914 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2915 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2916 | nla_get_u8); | |
2917 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2918 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2919 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2920 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2921 | nla_get_u16); | |
2922 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2923 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2924 | nla_get_u32); | |
2925 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2926 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2927 | nla_get_u16); | |
2928 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2929 | dot11MeshHWMPnetDiameterTraversalTime, | |
2930 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2931 | nla_get_u16); | |
63c5723b RP |
2932 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2933 | dot11MeshHWMPRootMode, mask, | |
2934 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2935 | nla_get_u8); | |
93da9cc1 | 2936 | |
2937 | /* Apply changes */ | |
79c97e97 | 2938 | err = rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2939 | |
f3f92586 | 2940 | out: |
93da9cc1 | 2941 | /* cleanup */ |
79c97e97 | 2942 | cfg80211_unlock_rdev(rdev); |
93da9cc1 | 2943 | dev_put(dev); |
3b85875a JB |
2944 | out_rtnl: |
2945 | rtnl_unlock(); | |
2946 | ||
93da9cc1 | 2947 | return err; |
2948 | } | |
2949 | ||
2950 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2951 | ||
f130347c LR |
2952 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2953 | { | |
2954 | struct sk_buff *msg; | |
2955 | void *hdr = NULL; | |
2956 | struct nlattr *nl_reg_rules; | |
2957 | unsigned int i; | |
2958 | int err = -EINVAL; | |
2959 | ||
a1794390 | 2960 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2961 | |
2962 | if (!cfg80211_regdomain) | |
2963 | goto out; | |
2964 | ||
fd2120ca | 2965 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2966 | if (!msg) { |
2967 | err = -ENOBUFS; | |
2968 | goto out; | |
2969 | } | |
2970 | ||
2971 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2972 | NL80211_CMD_GET_REG); | |
2973 | if (!hdr) | |
2974 | goto nla_put_failure; | |
2975 | ||
2976 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2977 | cfg80211_regdomain->alpha2); | |
2978 | ||
2979 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2980 | if (!nl_reg_rules) | |
2981 | goto nla_put_failure; | |
2982 | ||
2983 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2984 | struct nlattr *nl_reg_rule; | |
2985 | const struct ieee80211_reg_rule *reg_rule; | |
2986 | const struct ieee80211_freq_range *freq_range; | |
2987 | const struct ieee80211_power_rule *power_rule; | |
2988 | ||
2989 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2990 | freq_range = ®_rule->freq_range; | |
2991 | power_rule = ®_rule->power_rule; | |
2992 | ||
2993 | nl_reg_rule = nla_nest_start(msg, i); | |
2994 | if (!nl_reg_rule) | |
2995 | goto nla_put_failure; | |
2996 | ||
2997 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2998 | reg_rule->flags); | |
2999 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
3000 | freq_range->start_freq_khz); | |
3001 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
3002 | freq_range->end_freq_khz); | |
3003 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
3004 | freq_range->max_bandwidth_khz); | |
3005 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
3006 | power_rule->max_antenna_gain); | |
3007 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
3008 | power_rule->max_eirp); | |
3009 | ||
3010 | nla_nest_end(msg, nl_reg_rule); | |
3011 | } | |
3012 | ||
3013 | nla_nest_end(msg, nl_reg_rules); | |
3014 | ||
3015 | genlmsg_end(msg, hdr); | |
134e6375 | 3016 | err = genlmsg_reply(msg, info); |
f130347c LR |
3017 | goto out; |
3018 | ||
3019 | nla_put_failure: | |
3020 | genlmsg_cancel(msg, hdr); | |
d080e275 | 3021 | nlmsg_free(msg); |
f130347c LR |
3022 | err = -EMSGSIZE; |
3023 | out: | |
a1794390 | 3024 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
3025 | return err; |
3026 | } | |
3027 | ||
b2e1b302 LR |
3028 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
3029 | { | |
3030 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
3031 | struct nlattr *nl_reg_rule; | |
3032 | char *alpha2 = NULL; | |
3033 | int rem_reg_rules = 0, r = 0; | |
3034 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
3035 | struct ieee80211_regdomain *rd = NULL; | |
3036 | ||
3037 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
3038 | return -EINVAL; | |
3039 | ||
3040 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
3041 | return -EINVAL; | |
3042 | ||
3043 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
3044 | ||
3045 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
3046 | rem_reg_rules) { | |
3047 | num_rules++; | |
3048 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 3049 | return -EINVAL; |
b2e1b302 LR |
3050 | } |
3051 | ||
61405e97 LR |
3052 | mutex_lock(&cfg80211_mutex); |
3053 | ||
d0e18f83 LR |
3054 | if (!reg_is_valid_request(alpha2)) { |
3055 | r = -EINVAL; | |
3056 | goto bad_reg; | |
3057 | } | |
b2e1b302 LR |
3058 | |
3059 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
3060 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
3061 | ||
3062 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
3063 | if (!rd) { |
3064 | r = -ENOMEM; | |
3065 | goto bad_reg; | |
3066 | } | |
b2e1b302 LR |
3067 | |
3068 | rd->n_reg_rules = num_rules; | |
3069 | rd->alpha2[0] = alpha2[0]; | |
3070 | rd->alpha2[1] = alpha2[1]; | |
3071 | ||
3072 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
3073 | rem_reg_rules) { | |
3074 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
3075 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
3076 | reg_rule_policy); | |
3077 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
3078 | if (r) | |
3079 | goto bad_reg; | |
3080 | ||
3081 | rule_idx++; | |
3082 | ||
d0e18f83 LR |
3083 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
3084 | r = -EINVAL; | |
b2e1b302 | 3085 | goto bad_reg; |
d0e18f83 | 3086 | } |
b2e1b302 LR |
3087 | } |
3088 | ||
3089 | BUG_ON(rule_idx != num_rules); | |
3090 | ||
b2e1b302 | 3091 | r = set_regdom(rd); |
61405e97 | 3092 | |
a1794390 | 3093 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 3094 | |
b2e1b302 LR |
3095 | return r; |
3096 | ||
d2372b31 | 3097 | bad_reg: |
61405e97 | 3098 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 3099 | kfree(rd); |
d0e18f83 | 3100 | return r; |
b2e1b302 LR |
3101 | } |
3102 | ||
83f5e2cf JB |
3103 | static int validate_scan_freqs(struct nlattr *freqs) |
3104 | { | |
3105 | struct nlattr *attr1, *attr2; | |
3106 | int n_channels = 0, tmp1, tmp2; | |
3107 | ||
3108 | nla_for_each_nested(attr1, freqs, tmp1) { | |
3109 | n_channels++; | |
3110 | /* | |
3111 | * Some hardware has a limited channel list for | |
3112 | * scanning, and it is pretty much nonsensical | |
3113 | * to scan for a channel twice, so disallow that | |
3114 | * and don't require drivers to check that the | |
3115 | * channel list they get isn't longer than what | |
3116 | * they can scan, as long as they can scan all | |
3117 | * the channels they registered at once. | |
3118 | */ | |
3119 | nla_for_each_nested(attr2, freqs, tmp2) | |
3120 | if (attr1 != attr2 && | |
3121 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
3122 | return 0; | |
3123 | } | |
3124 | ||
3125 | return n_channels; | |
3126 | } | |
3127 | ||
2a519311 JB |
3128 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
3129 | { | |
79c97e97 | 3130 | struct cfg80211_registered_device *rdev; |
2a519311 JB |
3131 | struct net_device *dev; |
3132 | struct cfg80211_scan_request *request; | |
3133 | struct cfg80211_ssid *ssid; | |
3134 | struct ieee80211_channel *channel; | |
3135 | struct nlattr *attr; | |
3136 | struct wiphy *wiphy; | |
83f5e2cf | 3137 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 3138 | enum ieee80211_band band; |
70692ad2 | 3139 | size_t ie_len; |
2a519311 | 3140 | |
f4a11bb0 JB |
3141 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3142 | return -EINVAL; | |
3143 | ||
3b85875a JB |
3144 | rtnl_lock(); |
3145 | ||
463d0183 | 3146 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
2a519311 | 3147 | if (err) |
3b85875a | 3148 | goto out_rtnl; |
2a519311 | 3149 | |
79c97e97 | 3150 | wiphy = &rdev->wiphy; |
2a519311 | 3151 | |
79c97e97 | 3152 | if (!rdev->ops->scan) { |
2a519311 JB |
3153 | err = -EOPNOTSUPP; |
3154 | goto out; | |
3155 | } | |
3156 | ||
35a8efe1 JM |
3157 | if (!netif_running(dev)) { |
3158 | err = -ENETDOWN; | |
3159 | goto out; | |
3160 | } | |
3161 | ||
79c97e97 | 3162 | if (rdev->scan_req) { |
2a519311 | 3163 | err = -EBUSY; |
3b85875a | 3164 | goto out; |
2a519311 JB |
3165 | } |
3166 | ||
3167 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
3168 | n_channels = validate_scan_freqs( |
3169 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
2a519311 JB |
3170 | if (!n_channels) { |
3171 | err = -EINVAL; | |
3b85875a | 3172 | goto out; |
2a519311 JB |
3173 | } |
3174 | } else { | |
83f5e2cf JB |
3175 | n_channels = 0; |
3176 | ||
2a519311 JB |
3177 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
3178 | if (wiphy->bands[band]) | |
3179 | n_channels += wiphy->bands[band]->n_channels; | |
3180 | } | |
3181 | ||
3182 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
3183 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
3184 | n_ssids++; | |
3185 | ||
3186 | if (n_ssids > wiphy->max_scan_ssids) { | |
3187 | err = -EINVAL; | |
3b85875a | 3188 | goto out; |
2a519311 JB |
3189 | } |
3190 | ||
70692ad2 JM |
3191 | if (info->attrs[NL80211_ATTR_IE]) |
3192 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3193 | else | |
3194 | ie_len = 0; | |
3195 | ||
18a83659 JB |
3196 | if (ie_len > wiphy->max_scan_ie_len) { |
3197 | err = -EINVAL; | |
3198 | goto out; | |
3199 | } | |
3200 | ||
2a519311 JB |
3201 | request = kzalloc(sizeof(*request) |
3202 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
3203 | + sizeof(channel) * n_channels |
3204 | + ie_len, GFP_KERNEL); | |
2a519311 JB |
3205 | if (!request) { |
3206 | err = -ENOMEM; | |
3b85875a | 3207 | goto out; |
2a519311 JB |
3208 | } |
3209 | ||
2a519311 | 3210 | if (n_ssids) |
5ba63533 | 3211 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 3212 | request->n_ssids = n_ssids; |
70692ad2 JM |
3213 | if (ie_len) { |
3214 | if (request->ssids) | |
3215 | request->ie = (void *)(request->ssids + n_ssids); | |
3216 | else | |
3217 | request->ie = (void *)(request->channels + n_channels); | |
3218 | } | |
2a519311 | 3219 | |
584991dc | 3220 | i = 0; |
2a519311 JB |
3221 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
3222 | /* user specified, bail out if channel not found */ | |
2a519311 | 3223 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
3224 | struct ieee80211_channel *chan; |
3225 | ||
3226 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
3227 | ||
3228 | if (!chan) { | |
2a519311 JB |
3229 | err = -EINVAL; |
3230 | goto out_free; | |
3231 | } | |
584991dc JB |
3232 | |
3233 | /* ignore disabled channels */ | |
3234 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3235 | continue; | |
3236 | ||
3237 | request->channels[i] = chan; | |
2a519311 JB |
3238 | i++; |
3239 | } | |
3240 | } else { | |
3241 | /* all channels */ | |
2a519311 JB |
3242 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
3243 | int j; | |
3244 | if (!wiphy->bands[band]) | |
3245 | continue; | |
3246 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
3247 | struct ieee80211_channel *chan; |
3248 | ||
3249 | chan = &wiphy->bands[band]->channels[j]; | |
3250 | ||
3251 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
3252 | continue; | |
3253 | ||
3254 | request->channels[i] = chan; | |
2a519311 JB |
3255 | i++; |
3256 | } | |
3257 | } | |
3258 | } | |
3259 | ||
584991dc JB |
3260 | if (!i) { |
3261 | err = -EINVAL; | |
3262 | goto out_free; | |
3263 | } | |
3264 | ||
3265 | request->n_channels = i; | |
3266 | ||
2a519311 JB |
3267 | i = 0; |
3268 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
3269 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
3270 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
3271 | err = -EINVAL; | |
3272 | goto out_free; | |
3273 | } | |
3274 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
3275 | request->ssids[i].ssid_len = nla_len(attr); | |
3276 | i++; | |
3277 | } | |
3278 | } | |
3279 | ||
70692ad2 JM |
3280 | if (info->attrs[NL80211_ATTR_IE]) { |
3281 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
3282 | memcpy((void *)request->ie, |
3283 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
3284 | request->ie_len); |
3285 | } | |
3286 | ||
463d0183 | 3287 | request->dev = dev; |
79c97e97 | 3288 | request->wiphy = &rdev->wiphy; |
2a519311 | 3289 | |
79c97e97 JB |
3290 | rdev->scan_req = request; |
3291 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3292 | |
463d0183 | 3293 | if (!err) { |
79c97e97 | 3294 | nl80211_send_scan_start(rdev, dev); |
463d0183 JB |
3295 | dev_hold(dev); |
3296 | } | |
a538e2d5 | 3297 | |
2a519311 JB |
3298 | out_free: |
3299 | if (err) { | |
79c97e97 | 3300 | rdev->scan_req = NULL; |
2a519311 JB |
3301 | kfree(request); |
3302 | } | |
2a519311 | 3303 | out: |
79c97e97 | 3304 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3305 | dev_put(dev); |
3b85875a JB |
3306 | out_rtnl: |
3307 | rtnl_unlock(); | |
3308 | ||
2a519311 JB |
3309 | return err; |
3310 | } | |
3311 | ||
3312 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3313 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3314 | struct wireless_dev *wdev, |
3315 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3316 | { |
48ab905d | 3317 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3318 | void *hdr; |
3319 | struct nlattr *bss; | |
48ab905d JB |
3320 | int i; |
3321 | ||
3322 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3323 | |
3324 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3325 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3326 | if (!hdr) | |
3327 | return -1; | |
3328 | ||
f5ea9120 | 3329 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3330 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3331 | |
3332 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3333 | if (!bss) | |
3334 | goto nla_put_failure; | |
3335 | if (!is_zero_ether_addr(res->bssid)) | |
3336 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3337 | if (res->information_elements && res->len_information_elements) | |
3338 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3339 | res->len_information_elements, | |
3340 | res->information_elements); | |
34a6eddb JM |
3341 | if (res->beacon_ies && res->len_beacon_ies && |
3342 | res->beacon_ies != res->information_elements) | |
3343 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3344 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3345 | if (res->tsf) |
3346 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3347 | if (res->beacon_interval) | |
3348 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3349 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3350 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3351 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3352 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3353 | |
77965c97 | 3354 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3355 | case CFG80211_SIGNAL_TYPE_MBM: |
3356 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3357 | break; | |
3358 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3359 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3360 | break; | |
3361 | default: | |
3362 | break; | |
3363 | } | |
3364 | ||
48ab905d JB |
3365 | switch (wdev->iftype) { |
3366 | case NL80211_IFTYPE_STATION: | |
3367 | if (intbss == wdev->current_bss) | |
3368 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3369 | NL80211_BSS_STATUS_ASSOCIATED); | |
3370 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3371 | if (intbss != wdev->auth_bsses[i]) | |
3372 | continue; | |
3373 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3374 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3375 | break; | |
3376 | } | |
3377 | break; | |
3378 | case NL80211_IFTYPE_ADHOC: | |
3379 | if (intbss == wdev->current_bss) | |
3380 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3381 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3382 | break; | |
3383 | default: | |
3384 | break; | |
3385 | } | |
3386 | ||
2a519311 JB |
3387 | nla_nest_end(msg, bss); |
3388 | ||
3389 | return genlmsg_end(msg, hdr); | |
3390 | ||
3391 | nla_put_failure: | |
3392 | genlmsg_cancel(msg, hdr); | |
3393 | return -EMSGSIZE; | |
3394 | } | |
3395 | ||
3396 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3397 | struct netlink_callback *cb) | |
3398 | { | |
48ab905d JB |
3399 | struct cfg80211_registered_device *rdev; |
3400 | struct net_device *dev; | |
2a519311 | 3401 | struct cfg80211_internal_bss *scan; |
48ab905d | 3402 | struct wireless_dev *wdev; |
2a519311 JB |
3403 | int ifidx = cb->args[0]; |
3404 | int start = cb->args[1], idx = 0; | |
3405 | int err; | |
3406 | ||
a043897a HS |
3407 | if (!ifidx) |
3408 | ifidx = nl80211_get_ifidx(cb); | |
3409 | if (ifidx < 0) | |
3410 | return ifidx; | |
3411 | cb->args[0] = ifidx; | |
2a519311 | 3412 | |
463d0183 | 3413 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3414 | if (!dev) |
2a519311 JB |
3415 | return -ENODEV; |
3416 | ||
463d0183 | 3417 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3418 | if (IS_ERR(rdev)) { |
3419 | err = PTR_ERR(rdev); | |
2a519311 JB |
3420 | goto out_put_netdev; |
3421 | } | |
3422 | ||
48ab905d | 3423 | wdev = dev->ieee80211_ptr; |
2a519311 | 3424 | |
48ab905d JB |
3425 | wdev_lock(wdev); |
3426 | spin_lock_bh(&rdev->bss_lock); | |
3427 | cfg80211_bss_expire(rdev); | |
3428 | ||
3429 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3430 | if (++idx <= start) |
3431 | continue; | |
3432 | if (nl80211_send_bss(skb, | |
3433 | NETLINK_CB(cb->skb).pid, | |
3434 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3435 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3436 | idx--; |
3437 | goto out; | |
3438 | } | |
3439 | } | |
3440 | ||
3441 | out: | |
48ab905d JB |
3442 | spin_unlock_bh(&rdev->bss_lock); |
3443 | wdev_unlock(wdev); | |
2a519311 JB |
3444 | |
3445 | cb->args[1] = idx; | |
3446 | err = skb->len; | |
48ab905d | 3447 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3448 | out_put_netdev: |
48ab905d | 3449 | dev_put(dev); |
2a519311 JB |
3450 | |
3451 | return err; | |
3452 | } | |
3453 | ||
61fa713c HS |
3454 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3455 | int flags, struct net_device *dev, | |
3456 | struct survey_info *survey) | |
3457 | { | |
3458 | void *hdr; | |
3459 | struct nlattr *infoattr; | |
3460 | ||
3461 | /* Survey without a channel doesn't make sense */ | |
3462 | if (!survey->channel) | |
3463 | return -EINVAL; | |
3464 | ||
3465 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3466 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3467 | if (!hdr) | |
3468 | return -ENOMEM; | |
3469 | ||
3470 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3471 | ||
3472 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3473 | if (!infoattr) | |
3474 | goto nla_put_failure; | |
3475 | ||
3476 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3477 | survey->channel->center_freq); | |
3478 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3479 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3480 | survey->noise); | |
3481 | ||
3482 | nla_nest_end(msg, infoattr); | |
3483 | ||
3484 | return genlmsg_end(msg, hdr); | |
3485 | ||
3486 | nla_put_failure: | |
3487 | genlmsg_cancel(msg, hdr); | |
3488 | return -EMSGSIZE; | |
3489 | } | |
3490 | ||
3491 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3492 | struct netlink_callback *cb) | |
3493 | { | |
3494 | struct survey_info survey; | |
3495 | struct cfg80211_registered_device *dev; | |
3496 | struct net_device *netdev; | |
3497 | int ifidx = cb->args[0]; | |
3498 | int survey_idx = cb->args[1]; | |
3499 | int res; | |
3500 | ||
3501 | if (!ifidx) | |
3502 | ifidx = nl80211_get_ifidx(cb); | |
3503 | if (ifidx < 0) | |
3504 | return ifidx; | |
3505 | cb->args[0] = ifidx; | |
3506 | ||
3507 | rtnl_lock(); | |
3508 | ||
3509 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3510 | if (!netdev) { | |
3511 | res = -ENODEV; | |
3512 | goto out_rtnl; | |
3513 | } | |
3514 | ||
3515 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3516 | if (IS_ERR(dev)) { | |
3517 | res = PTR_ERR(dev); | |
3518 | goto out_rtnl; | |
3519 | } | |
3520 | ||
3521 | if (!dev->ops->dump_survey) { | |
3522 | res = -EOPNOTSUPP; | |
3523 | goto out_err; | |
3524 | } | |
3525 | ||
3526 | while (1) { | |
3527 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3528 | &survey); | |
3529 | if (res == -ENOENT) | |
3530 | break; | |
3531 | if (res) | |
3532 | goto out_err; | |
3533 | ||
3534 | if (nl80211_send_survey(skb, | |
3535 | NETLINK_CB(cb->skb).pid, | |
3536 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3537 | netdev, | |
3538 | &survey) < 0) | |
3539 | goto out; | |
3540 | survey_idx++; | |
3541 | } | |
3542 | ||
3543 | out: | |
3544 | cb->args[1] = survey_idx; | |
3545 | res = skb->len; | |
3546 | out_err: | |
3547 | cfg80211_unlock_rdev(dev); | |
3548 | out_rtnl: | |
3549 | rtnl_unlock(); | |
3550 | ||
3551 | return res; | |
3552 | } | |
3553 | ||
255e737e JM |
3554 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3555 | { | |
b23aa676 SO |
3556 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3557 | } | |
3558 | ||
3559 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3560 | { | |
3561 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3562 | NL80211_WPA_VERSION_2)); | |
3563 | } | |
3564 | ||
3565 | static bool nl80211_valid_akm_suite(u32 akm) | |
3566 | { | |
3567 | return akm == WLAN_AKM_SUITE_8021X || | |
3568 | akm == WLAN_AKM_SUITE_PSK; | |
3569 | } | |
3570 | ||
3571 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3572 | { | |
3573 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3574 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3575 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3576 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3577 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3578 | } |
3579 | ||
b23aa676 | 3580 | |
636a5d36 JM |
3581 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3582 | { | |
79c97e97 | 3583 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3584 | struct net_device *dev; |
19957bb3 JB |
3585 | struct ieee80211_channel *chan; |
3586 | const u8 *bssid, *ssid, *ie = NULL; | |
3587 | int err, ssid_len, ie_len = 0; | |
3588 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3589 | struct key_parse key; |
d5cdfacb | 3590 | bool local_state_change; |
636a5d36 | 3591 | |
f4a11bb0 JB |
3592 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3593 | return -EINVAL; | |
3594 | ||
3595 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3596 | return -EINVAL; | |
3597 | ||
1778092e JM |
3598 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3599 | return -EINVAL; | |
3600 | ||
19957bb3 JB |
3601 | if (!info->attrs[NL80211_ATTR_SSID]) |
3602 | return -EINVAL; | |
3603 | ||
3604 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3605 | return -EINVAL; | |
3606 | ||
fffd0934 JB |
3607 | err = nl80211_parse_key(info, &key); |
3608 | if (err) | |
3609 | return err; | |
3610 | ||
3611 | if (key.idx >= 0) { | |
3612 | if (!key.p.key || !key.p.key_len) | |
3613 | return -EINVAL; | |
3614 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3615 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3616 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3617 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3618 | return -EINVAL; | |
3619 | if (key.idx > 4) | |
3620 | return -EINVAL; | |
3621 | } else { | |
3622 | key.p.key_len = 0; | |
3623 | key.p.key = NULL; | |
3624 | } | |
3625 | ||
636a5d36 JM |
3626 | rtnl_lock(); |
3627 | ||
463d0183 | 3628 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3629 | if (err) |
3630 | goto unlock_rtnl; | |
3631 | ||
afea0b7a JB |
3632 | if (key.idx >= 0) { |
3633 | int i; | |
3634 | bool ok = false; | |
3635 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3636 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3637 | ok = true; | |
3638 | break; | |
3639 | } | |
3640 | } | |
3641 | if (!ok) { | |
3642 | err = -EINVAL; | |
3643 | goto out; | |
3644 | } | |
3645 | } | |
3646 | ||
79c97e97 | 3647 | if (!rdev->ops->auth) { |
636a5d36 JM |
3648 | err = -EOPNOTSUPP; |
3649 | goto out; | |
3650 | } | |
3651 | ||
eec60b03 JM |
3652 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3653 | err = -EOPNOTSUPP; | |
3654 | goto out; | |
3655 | } | |
3656 | ||
35a8efe1 JM |
3657 | if (!netif_running(dev)) { |
3658 | err = -ENETDOWN; | |
3659 | goto out; | |
3660 | } | |
3661 | ||
19957bb3 | 3662 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3663 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 JB |
3664 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
3665 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3666 | err = -EINVAL; | |
3667 | goto out; | |
636a5d36 JM |
3668 | } |
3669 | ||
19957bb3 JB |
3670 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3671 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3672 | |
3673 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3674 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3675 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3676 | } |
3677 | ||
19957bb3 JB |
3678 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
3679 | if (!nl80211_valid_auth_type(auth_type)) { | |
1778092e JM |
3680 | err = -EINVAL; |
3681 | goto out; | |
636a5d36 JM |
3682 | } |
3683 | ||
d5cdfacb JM |
3684 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3685 | ||
79c97e97 | 3686 | err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
fffd0934 | 3687 | ssid, ssid_len, ie, ie_len, |
d5cdfacb JM |
3688 | key.p.key, key.p.key_len, key.idx, |
3689 | local_state_change); | |
636a5d36 JM |
3690 | |
3691 | out: | |
79c97e97 | 3692 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3693 | dev_put(dev); |
3694 | unlock_rtnl: | |
3695 | rtnl_unlock(); | |
3696 | return err; | |
3697 | } | |
3698 | ||
c0692b8f JB |
3699 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
3700 | struct genl_info *info, | |
3dc27d25 JB |
3701 | struct cfg80211_crypto_settings *settings, |
3702 | int cipher_limit) | |
b23aa676 | 3703 | { |
c0b2bbd8 JB |
3704 | memset(settings, 0, sizeof(*settings)); |
3705 | ||
b23aa676 SO |
3706 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3707 | ||
c0692b8f JB |
3708 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
3709 | u16 proto; | |
3710 | proto = nla_get_u16( | |
3711 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
3712 | settings->control_port_ethertype = cpu_to_be16(proto); | |
3713 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
3714 | proto != ETH_P_PAE) | |
3715 | return -EINVAL; | |
3716 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
3717 | settings->control_port_no_encrypt = true; | |
3718 | } else | |
3719 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
3720 | ||
b23aa676 SO |
3721 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
3722 | void *data; | |
3723 | int len, i; | |
3724 | ||
3725 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3726 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3727 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3728 | ||
3729 | if (len % sizeof(u32)) | |
3730 | return -EINVAL; | |
3731 | ||
3dc27d25 | 3732 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3733 | return -EINVAL; |
3734 | ||
3735 | memcpy(settings->ciphers_pairwise, data, len); | |
3736 | ||
3737 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3738 | if (!nl80211_valid_cipher_suite( | |
3739 | settings->ciphers_pairwise[i])) | |
3740 | return -EINVAL; | |
3741 | } | |
3742 | ||
3743 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3744 | settings->cipher_group = | |
3745 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3746 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3747 | return -EINVAL; | |
3748 | } | |
3749 | ||
3750 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3751 | settings->wpa_versions = | |
3752 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3753 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3754 | return -EINVAL; | |
3755 | } | |
3756 | ||
3757 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3758 | void *data; | |
3759 | int len, i; | |
3760 | ||
3761 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3762 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3763 | settings->n_akm_suites = len / sizeof(u32); | |
3764 | ||
3765 | if (len % sizeof(u32)) | |
3766 | return -EINVAL; | |
3767 | ||
3768 | memcpy(settings->akm_suites, data, len); | |
3769 | ||
3770 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3771 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3772 | return -EINVAL; | |
3773 | } | |
3774 | ||
3775 | return 0; | |
3776 | } | |
3777 | ||
636a5d36 JM |
3778 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3779 | { | |
19957bb3 | 3780 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3781 | struct net_device *dev; |
19957bb3 | 3782 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3783 | struct ieee80211_channel *chan; |
3e5d7649 | 3784 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3785 | int err, ssid_len, ie_len = 0; |
3786 | bool use_mfp = false; | |
636a5d36 | 3787 | |
f4a11bb0 JB |
3788 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3789 | return -EINVAL; | |
3790 | ||
3791 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3792 | !info->attrs[NL80211_ATTR_SSID] || |
3793 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3794 | return -EINVAL; |
3795 | ||
636a5d36 JM |
3796 | rtnl_lock(); |
3797 | ||
463d0183 | 3798 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3799 | if (err) |
3800 | goto unlock_rtnl; | |
3801 | ||
19957bb3 | 3802 | if (!rdev->ops->assoc) { |
636a5d36 JM |
3803 | err = -EOPNOTSUPP; |
3804 | goto out; | |
3805 | } | |
3806 | ||
eec60b03 JM |
3807 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3808 | err = -EOPNOTSUPP; | |
3809 | goto out; | |
3810 | } | |
3811 | ||
35a8efe1 JM |
3812 | if (!netif_running(dev)) { |
3813 | err = -ENETDOWN; | |
3814 | goto out; | |
3815 | } | |
3816 | ||
19957bb3 | 3817 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3818 | |
19957bb3 JB |
3819 | chan = ieee80211_get_channel(&rdev->wiphy, |
3820 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3821 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) { | |
3822 | err = -EINVAL; | |
3823 | goto out; | |
636a5d36 JM |
3824 | } |
3825 | ||
19957bb3 JB |
3826 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3827 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3828 | |
3829 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3830 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3831 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3832 | } |
3833 | ||
dc6382ce | 3834 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3835 | enum nl80211_mfp mfp = |
dc6382ce | 3836 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3837 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3838 | use_mfp = true; |
4f5dadce | 3839 | else if (mfp != NL80211_MFP_NO) { |
dc6382ce JM |
3840 | err = -EINVAL; |
3841 | goto out; | |
3842 | } | |
3843 | } | |
3844 | ||
3e5d7649 JB |
3845 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3846 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3847 | ||
c0692b8f | 3848 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 3849 | if (!err) |
3e5d7649 JB |
3850 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3851 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3852 | &crypto); |
636a5d36 JM |
3853 | |
3854 | out: | |
4d0c8aea | 3855 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3856 | dev_put(dev); |
3857 | unlock_rtnl: | |
3858 | rtnl_unlock(); | |
3859 | return err; | |
3860 | } | |
3861 | ||
3862 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3863 | { | |
79c97e97 | 3864 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3865 | struct net_device *dev; |
19957bb3 JB |
3866 | const u8 *ie = NULL, *bssid; |
3867 | int err, ie_len = 0; | |
3868 | u16 reason_code; | |
d5cdfacb | 3869 | bool local_state_change; |
636a5d36 | 3870 | |
f4a11bb0 JB |
3871 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3872 | return -EINVAL; | |
3873 | ||
3874 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3875 | return -EINVAL; | |
3876 | ||
3877 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3878 | return -EINVAL; | |
3879 | ||
636a5d36 JM |
3880 | rtnl_lock(); |
3881 | ||
463d0183 | 3882 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3883 | if (err) |
3884 | goto unlock_rtnl; | |
3885 | ||
79c97e97 | 3886 | if (!rdev->ops->deauth) { |
636a5d36 JM |
3887 | err = -EOPNOTSUPP; |
3888 | goto out; | |
3889 | } | |
3890 | ||
eec60b03 JM |
3891 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3892 | err = -EOPNOTSUPP; | |
3893 | goto out; | |
3894 | } | |
3895 | ||
35a8efe1 JM |
3896 | if (!netif_running(dev)) { |
3897 | err = -ENETDOWN; | |
3898 | goto out; | |
3899 | } | |
3900 | ||
19957bb3 | 3901 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3902 | |
19957bb3 JB |
3903 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3904 | if (reason_code == 0) { | |
f4a11bb0 JB |
3905 | /* Reason Code 0 is reserved */ |
3906 | err = -EINVAL; | |
3907 | goto out; | |
255e737e | 3908 | } |
636a5d36 JM |
3909 | |
3910 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3911 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3912 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3913 | } |
3914 | ||
d5cdfacb JM |
3915 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3916 | ||
3917 | err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, | |
3918 | local_state_change); | |
636a5d36 JM |
3919 | |
3920 | out: | |
79c97e97 | 3921 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3922 | dev_put(dev); |
3923 | unlock_rtnl: | |
3924 | rtnl_unlock(); | |
3925 | return err; | |
3926 | } | |
3927 | ||
3928 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3929 | { | |
79c97e97 | 3930 | struct cfg80211_registered_device *rdev; |
636a5d36 | 3931 | struct net_device *dev; |
19957bb3 JB |
3932 | const u8 *ie = NULL, *bssid; |
3933 | int err, ie_len = 0; | |
3934 | u16 reason_code; | |
d5cdfacb | 3935 | bool local_state_change; |
636a5d36 | 3936 | |
f4a11bb0 JB |
3937 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3938 | return -EINVAL; | |
3939 | ||
3940 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3941 | return -EINVAL; | |
3942 | ||
3943 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3944 | return -EINVAL; | |
3945 | ||
636a5d36 JM |
3946 | rtnl_lock(); |
3947 | ||
463d0183 | 3948 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
636a5d36 JM |
3949 | if (err) |
3950 | goto unlock_rtnl; | |
3951 | ||
79c97e97 | 3952 | if (!rdev->ops->disassoc) { |
636a5d36 JM |
3953 | err = -EOPNOTSUPP; |
3954 | goto out; | |
3955 | } | |
3956 | ||
eec60b03 JM |
3957 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { |
3958 | err = -EOPNOTSUPP; | |
3959 | goto out; | |
3960 | } | |
3961 | ||
35a8efe1 JM |
3962 | if (!netif_running(dev)) { |
3963 | err = -ENETDOWN; | |
3964 | goto out; | |
3965 | } | |
3966 | ||
19957bb3 | 3967 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3968 | |
19957bb3 JB |
3969 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3970 | if (reason_code == 0) { | |
f4a11bb0 JB |
3971 | /* Reason Code 0 is reserved */ |
3972 | err = -EINVAL; | |
3973 | goto out; | |
255e737e | 3974 | } |
636a5d36 JM |
3975 | |
3976 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3977 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3978 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3979 | } |
3980 | ||
d5cdfacb JM |
3981 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3982 | ||
3983 | err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, | |
3984 | local_state_change); | |
636a5d36 JM |
3985 | |
3986 | out: | |
79c97e97 | 3987 | cfg80211_unlock_rdev(rdev); |
636a5d36 JM |
3988 | dev_put(dev); |
3989 | unlock_rtnl: | |
3990 | rtnl_unlock(); | |
3991 | return err; | |
3992 | } | |
3993 | ||
04a773ad JB |
3994 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3995 | { | |
79c97e97 | 3996 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
3997 | struct net_device *dev; |
3998 | struct cfg80211_ibss_params ibss; | |
3999 | struct wiphy *wiphy; | |
fffd0934 | 4000 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
4001 | int err; |
4002 | ||
8e30bc55 JB |
4003 | memset(&ibss, 0, sizeof(ibss)); |
4004 | ||
04a773ad JB |
4005 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
4006 | return -EINVAL; | |
4007 | ||
4008 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4009 | !info->attrs[NL80211_ATTR_SSID] || | |
4010 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4011 | return -EINVAL; | |
4012 | ||
8e30bc55 JB |
4013 | ibss.beacon_interval = 100; |
4014 | ||
4015 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
4016 | ibss.beacon_interval = | |
4017 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
4018 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
4019 | return -EINVAL; | |
4020 | } | |
4021 | ||
04a773ad JB |
4022 | rtnl_lock(); |
4023 | ||
463d0183 | 4024 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
4025 | if (err) |
4026 | goto unlock_rtnl; | |
4027 | ||
79c97e97 | 4028 | if (!rdev->ops->join_ibss) { |
04a773ad JB |
4029 | err = -EOPNOTSUPP; |
4030 | goto out; | |
4031 | } | |
4032 | ||
4033 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
4034 | err = -EOPNOTSUPP; | |
4035 | goto out; | |
4036 | } | |
4037 | ||
4038 | if (!netif_running(dev)) { | |
4039 | err = -ENETDOWN; | |
4040 | goto out; | |
4041 | } | |
4042 | ||
79c97e97 | 4043 | wiphy = &rdev->wiphy; |
04a773ad JB |
4044 | |
4045 | if (info->attrs[NL80211_ATTR_MAC]) | |
4046 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4047 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4048 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4049 | ||
4050 | if (info->attrs[NL80211_ATTR_IE]) { | |
4051 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4052 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4053 | } | |
4054 | ||
4055 | ibss.channel = ieee80211_get_channel(wiphy, | |
4056 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4057 | if (!ibss.channel || | |
4058 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4059 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4060 | err = -EINVAL; | |
4061 | goto out; | |
4062 | } | |
4063 | ||
4064 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
4065 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
4066 | ||
4067 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { | |
4068 | connkeys = nl80211_parse_connkeys(rdev, | |
4069 | info->attrs[NL80211_ATTR_KEYS]); | |
4070 | if (IS_ERR(connkeys)) { | |
4071 | err = PTR_ERR(connkeys); | |
4072 | connkeys = NULL; | |
4073 | goto out; | |
4074 | } | |
4075 | } | |
04a773ad | 4076 | |
fbd2c8dc TP |
4077 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
4078 | u8 *rates = | |
4079 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4080 | int n_rates = | |
4081 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
4082 | struct ieee80211_supported_band *sband = | |
4083 | wiphy->bands[ibss.channel->band]; | |
4084 | int i, j; | |
4085 | ||
4086 | if (n_rates == 0) { | |
4087 | err = -EINVAL; | |
4088 | goto out; | |
4089 | } | |
4090 | ||
4091 | for (i = 0; i < n_rates; i++) { | |
4092 | int rate = (rates[i] & 0x7f) * 5; | |
4093 | bool found = false; | |
4094 | ||
4095 | for (j = 0; j < sband->n_bitrates; j++) { | |
4096 | if (sband->bitrates[j].bitrate == rate) { | |
4097 | found = true; | |
4098 | ibss.basic_rates |= BIT(j); | |
4099 | break; | |
4100 | } | |
4101 | } | |
4102 | if (!found) { | |
4103 | err = -EINVAL; | |
4104 | goto out; | |
4105 | } | |
4106 | } | |
4107 | } else { | |
4108 | /* | |
4109 | * If no rates were explicitly configured, | |
4110 | * use the mandatory rate set for 11b or | |
4111 | * 11a for maximum compatibility. | |
4112 | */ | |
4113 | struct ieee80211_supported_band *sband = | |
4114 | wiphy->bands[ibss.channel->band]; | |
4115 | int j; | |
4116 | u32 flag = ibss.channel->band == IEEE80211_BAND_5GHZ ? | |
4117 | IEEE80211_RATE_MANDATORY_A : | |
4118 | IEEE80211_RATE_MANDATORY_B; | |
4119 | ||
4120 | for (j = 0; j < sband->n_bitrates; j++) { | |
4121 | if (sband->bitrates[j].flags & flag) | |
4122 | ibss.basic_rates |= BIT(j); | |
4123 | } | |
4124 | } | |
4125 | ||
fffd0934 | 4126 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
04a773ad JB |
4127 | |
4128 | out: | |
79c97e97 | 4129 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
4130 | dev_put(dev); |
4131 | unlock_rtnl: | |
fffd0934 JB |
4132 | if (err) |
4133 | kfree(connkeys); | |
04a773ad JB |
4134 | rtnl_unlock(); |
4135 | return err; | |
4136 | } | |
4137 | ||
4138 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
4139 | { | |
79c97e97 | 4140 | struct cfg80211_registered_device *rdev; |
04a773ad JB |
4141 | struct net_device *dev; |
4142 | int err; | |
4143 | ||
4144 | rtnl_lock(); | |
4145 | ||
463d0183 | 4146 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
04a773ad JB |
4147 | if (err) |
4148 | goto unlock_rtnl; | |
4149 | ||
79c97e97 | 4150 | if (!rdev->ops->leave_ibss) { |
04a773ad JB |
4151 | err = -EOPNOTSUPP; |
4152 | goto out; | |
4153 | } | |
4154 | ||
4155 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
4156 | err = -EOPNOTSUPP; | |
4157 | goto out; | |
4158 | } | |
4159 | ||
4160 | if (!netif_running(dev)) { | |
4161 | err = -ENETDOWN; | |
4162 | goto out; | |
4163 | } | |
4164 | ||
79c97e97 | 4165 | err = cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
4166 | |
4167 | out: | |
79c97e97 | 4168 | cfg80211_unlock_rdev(rdev); |
04a773ad JB |
4169 | dev_put(dev); |
4170 | unlock_rtnl: | |
4171 | rtnl_unlock(); | |
4172 | return err; | |
4173 | } | |
4174 | ||
aff89a9b JB |
4175 | #ifdef CONFIG_NL80211_TESTMODE |
4176 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
4177 | .name = "testmode", | |
4178 | }; | |
4179 | ||
4180 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
4181 | { | |
4182 | struct cfg80211_registered_device *rdev; | |
4183 | int err; | |
4184 | ||
4185 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
4186 | return -EINVAL; | |
4187 | ||
4188 | rtnl_lock(); | |
4189 | ||
4190 | rdev = cfg80211_get_dev_from_info(info); | |
4191 | if (IS_ERR(rdev)) { | |
4192 | err = PTR_ERR(rdev); | |
4193 | goto unlock_rtnl; | |
4194 | } | |
4195 | ||
4196 | err = -EOPNOTSUPP; | |
4197 | if (rdev->ops->testmode_cmd) { | |
4198 | rdev->testmode_info = info; | |
4199 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
4200 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
4201 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
4202 | rdev->testmode_info = NULL; | |
4203 | } | |
4204 | ||
4d0c8aea | 4205 | cfg80211_unlock_rdev(rdev); |
aff89a9b JB |
4206 | |
4207 | unlock_rtnl: | |
4208 | rtnl_unlock(); | |
4209 | return err; | |
4210 | } | |
4211 | ||
4212 | static struct sk_buff * | |
4213 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
4214 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
4215 | { | |
4216 | struct sk_buff *skb; | |
4217 | void *hdr; | |
4218 | struct nlattr *data; | |
4219 | ||
4220 | skb = nlmsg_new(approxlen + 100, gfp); | |
4221 | if (!skb) | |
4222 | return NULL; | |
4223 | ||
4224 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
4225 | if (!hdr) { | |
4226 | kfree_skb(skb); | |
4227 | return NULL; | |
4228 | } | |
4229 | ||
4230 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
4231 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
4232 | ||
4233 | ((void **)skb->cb)[0] = rdev; | |
4234 | ((void **)skb->cb)[1] = hdr; | |
4235 | ((void **)skb->cb)[2] = data; | |
4236 | ||
4237 | return skb; | |
4238 | ||
4239 | nla_put_failure: | |
4240 | kfree_skb(skb); | |
4241 | return NULL; | |
4242 | } | |
4243 | ||
4244 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
4245 | int approxlen) | |
4246 | { | |
4247 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4248 | ||
4249 | if (WARN_ON(!rdev->testmode_info)) | |
4250 | return NULL; | |
4251 | ||
4252 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
4253 | rdev->testmode_info->snd_pid, | |
4254 | rdev->testmode_info->snd_seq, | |
4255 | GFP_KERNEL); | |
4256 | } | |
4257 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
4258 | ||
4259 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
4260 | { | |
4261 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
4262 | void *hdr = ((void **)skb->cb)[1]; | |
4263 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4264 | ||
4265 | if (WARN_ON(!rdev->testmode_info)) { | |
4266 | kfree_skb(skb); | |
4267 | return -EINVAL; | |
4268 | } | |
4269 | ||
4270 | nla_nest_end(skb, data); | |
4271 | genlmsg_end(skb, hdr); | |
4272 | return genlmsg_reply(skb, rdev->testmode_info); | |
4273 | } | |
4274 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
4275 | ||
4276 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
4277 | int approxlen, gfp_t gfp) | |
4278 | { | |
4279 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
4280 | ||
4281 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
4282 | } | |
4283 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
4284 | ||
4285 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
4286 | { | |
4287 | void *hdr = ((void **)skb->cb)[1]; | |
4288 | struct nlattr *data = ((void **)skb->cb)[2]; | |
4289 | ||
4290 | nla_nest_end(skb, data); | |
4291 | genlmsg_end(skb, hdr); | |
4292 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
4293 | } | |
4294 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
4295 | #endif | |
4296 | ||
b23aa676 SO |
4297 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
4298 | { | |
79c97e97 | 4299 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4300 | struct net_device *dev; |
4301 | struct cfg80211_connect_params connect; | |
4302 | struct wiphy *wiphy; | |
fffd0934 | 4303 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
4304 | int err; |
4305 | ||
4306 | memset(&connect, 0, sizeof(connect)); | |
4307 | ||
4308 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
4309 | return -EINVAL; | |
4310 | ||
4311 | if (!info->attrs[NL80211_ATTR_SSID] || | |
4312 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
4313 | return -EINVAL; | |
4314 | ||
4315 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
4316 | connect.auth_type = | |
4317 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
4318 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
4319 | return -EINVAL; | |
4320 | } else | |
4321 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
4322 | ||
4323 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
4324 | ||
c0692b8f | 4325 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 4326 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
4327 | if (err) |
4328 | return err; | |
4329 | rtnl_lock(); | |
4330 | ||
463d0183 | 4331 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4332 | if (err) |
4333 | goto unlock_rtnl; | |
4334 | ||
4335 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4336 | err = -EOPNOTSUPP; | |
4337 | goto out; | |
4338 | } | |
4339 | ||
4340 | if (!netif_running(dev)) { | |
4341 | err = -ENETDOWN; | |
4342 | goto out; | |
4343 | } | |
4344 | ||
79c97e97 | 4345 | wiphy = &rdev->wiphy; |
b23aa676 | 4346 | |
b23aa676 SO |
4347 | if (info->attrs[NL80211_ATTR_MAC]) |
4348 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4349 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
4350 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
4351 | ||
4352 | if (info->attrs[NL80211_ATTR_IE]) { | |
4353 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
4354 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
4355 | } | |
4356 | ||
4357 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
4358 | connect.channel = | |
4359 | ieee80211_get_channel(wiphy, | |
4360 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4361 | if (!connect.channel || | |
4362 | connect.channel->flags & IEEE80211_CHAN_DISABLED) { | |
4363 | err = -EINVAL; | |
4364 | goto out; | |
4365 | } | |
4366 | } | |
4367 | ||
fffd0934 JB |
4368 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
4369 | connkeys = nl80211_parse_connkeys(rdev, | |
4370 | info->attrs[NL80211_ATTR_KEYS]); | |
4371 | if (IS_ERR(connkeys)) { | |
4372 | err = PTR_ERR(connkeys); | |
4373 | connkeys = NULL; | |
4374 | goto out; | |
4375 | } | |
4376 | } | |
4377 | ||
4378 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
b23aa676 SO |
4379 | |
4380 | out: | |
79c97e97 | 4381 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4382 | dev_put(dev); |
4383 | unlock_rtnl: | |
fffd0934 JB |
4384 | if (err) |
4385 | kfree(connkeys); | |
b23aa676 SO |
4386 | rtnl_unlock(); |
4387 | return err; | |
4388 | } | |
4389 | ||
4390 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
4391 | { | |
79c97e97 | 4392 | struct cfg80211_registered_device *rdev; |
b23aa676 SO |
4393 | struct net_device *dev; |
4394 | int err; | |
4395 | u16 reason; | |
4396 | ||
4397 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
4398 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
4399 | else | |
4400 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
4401 | ||
4402 | if (reason == 0) | |
4403 | return -EINVAL; | |
4404 | ||
4405 | rtnl_lock(); | |
4406 | ||
463d0183 | 4407 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); |
b23aa676 SO |
4408 | if (err) |
4409 | goto unlock_rtnl; | |
4410 | ||
4411 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4412 | err = -EOPNOTSUPP; | |
4413 | goto out; | |
4414 | } | |
4415 | ||
4416 | if (!netif_running(dev)) { | |
4417 | err = -ENETDOWN; | |
4418 | goto out; | |
4419 | } | |
4420 | ||
79c97e97 | 4421 | err = cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
4422 | |
4423 | out: | |
79c97e97 | 4424 | cfg80211_unlock_rdev(rdev); |
b23aa676 SO |
4425 | dev_put(dev); |
4426 | unlock_rtnl: | |
4427 | rtnl_unlock(); | |
4428 | return err; | |
4429 | } | |
4430 | ||
463d0183 JB |
4431 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
4432 | { | |
4433 | struct cfg80211_registered_device *rdev; | |
4434 | struct net *net; | |
4435 | int err; | |
4436 | u32 pid; | |
4437 | ||
4438 | if (!info->attrs[NL80211_ATTR_PID]) | |
4439 | return -EINVAL; | |
4440 | ||
4441 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
4442 | ||
4443 | rtnl_lock(); | |
4444 | ||
4445 | rdev = cfg80211_get_dev_from_info(info); | |
4446 | if (IS_ERR(rdev)) { | |
4447 | err = PTR_ERR(rdev); | |
8a8e05e5 | 4448 | goto out_rtnl; |
463d0183 JB |
4449 | } |
4450 | ||
4451 | net = get_net_ns_by_pid(pid); | |
4452 | if (IS_ERR(net)) { | |
4453 | err = PTR_ERR(net); | |
4454 | goto out; | |
4455 | } | |
4456 | ||
4457 | err = 0; | |
4458 | ||
4459 | /* check if anything to do */ | |
4460 | if (net_eq(wiphy_net(&rdev->wiphy), net)) | |
4461 | goto out_put_net; | |
4462 | ||
4463 | err = cfg80211_switch_netns(rdev, net); | |
4464 | out_put_net: | |
4465 | put_net(net); | |
4466 | out: | |
4467 | cfg80211_unlock_rdev(rdev); | |
8a8e05e5 | 4468 | out_rtnl: |
463d0183 JB |
4469 | rtnl_unlock(); |
4470 | return err; | |
4471 | } | |
4472 | ||
67fbb16b SO |
4473 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
4474 | { | |
4475 | struct cfg80211_registered_device *rdev; | |
4476 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, | |
4477 | struct cfg80211_pmksa *pmksa) = NULL; | |
4478 | int err; | |
4479 | struct net_device *dev; | |
4480 | struct cfg80211_pmksa pmksa; | |
4481 | ||
4482 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
4483 | ||
4484 | if (!info->attrs[NL80211_ATTR_MAC]) | |
4485 | return -EINVAL; | |
4486 | ||
4487 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
4488 | return -EINVAL; | |
4489 | ||
4490 | rtnl_lock(); | |
4491 | ||
4492 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4493 | if (err) | |
4494 | goto out_rtnl; | |
4495 | ||
4496 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); | |
4497 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
4498 | ||
4499 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4500 | err = -EOPNOTSUPP; | |
4501 | goto out; | |
4502 | } | |
4503 | ||
4504 | switch (info->genlhdr->cmd) { | |
4505 | case NL80211_CMD_SET_PMKSA: | |
4506 | rdev_ops = rdev->ops->set_pmksa; | |
4507 | break; | |
4508 | case NL80211_CMD_DEL_PMKSA: | |
4509 | rdev_ops = rdev->ops->del_pmksa; | |
4510 | break; | |
4511 | default: | |
4512 | WARN_ON(1); | |
4513 | break; | |
4514 | } | |
4515 | ||
4516 | if (!rdev_ops) { | |
4517 | err = -EOPNOTSUPP; | |
4518 | goto out; | |
4519 | } | |
4520 | ||
4521 | err = rdev_ops(&rdev->wiphy, dev, &pmksa); | |
4522 | ||
4523 | out: | |
4524 | cfg80211_unlock_rdev(rdev); | |
4525 | dev_put(dev); | |
4526 | out_rtnl: | |
4527 | rtnl_unlock(); | |
4528 | ||
4529 | return err; | |
4530 | } | |
4531 | ||
4532 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
4533 | { | |
4534 | struct cfg80211_registered_device *rdev; | |
4535 | int err; | |
4536 | struct net_device *dev; | |
4537 | ||
4538 | rtnl_lock(); | |
4539 | ||
4540 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4541 | if (err) | |
4542 | goto out_rtnl; | |
4543 | ||
4544 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION) { | |
4545 | err = -EOPNOTSUPP; | |
4546 | goto out; | |
4547 | } | |
4548 | ||
4549 | if (!rdev->ops->flush_pmksa) { | |
4550 | err = -EOPNOTSUPP; | |
4551 | goto out; | |
4552 | } | |
4553 | ||
4554 | err = rdev->ops->flush_pmksa(&rdev->wiphy, dev); | |
4555 | ||
4556 | out: | |
4557 | cfg80211_unlock_rdev(rdev); | |
4558 | dev_put(dev); | |
4559 | out_rtnl: | |
4560 | rtnl_unlock(); | |
4561 | ||
4562 | return err; | |
4563 | ||
4564 | } | |
4565 | ||
9588bbd5 JM |
4566 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
4567 | struct genl_info *info) | |
4568 | { | |
4569 | struct cfg80211_registered_device *rdev; | |
4570 | struct net_device *dev; | |
4571 | struct ieee80211_channel *chan; | |
4572 | struct sk_buff *msg; | |
4573 | void *hdr; | |
4574 | u64 cookie; | |
4575 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
4576 | u32 freq, duration; | |
4577 | int err; | |
4578 | ||
4579 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
4580 | !info->attrs[NL80211_ATTR_DURATION]) | |
4581 | return -EINVAL; | |
4582 | ||
4583 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
4584 | ||
4585 | /* | |
4586 | * We should be on that channel for at least one jiffie, | |
4587 | * and more than 5 seconds seems excessive. | |
4588 | */ | |
4589 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
4590 | return -EINVAL; | |
4591 | ||
4592 | rtnl_lock(); | |
4593 | ||
4594 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4595 | if (err) | |
4596 | goto unlock_rtnl; | |
4597 | ||
4598 | if (!rdev->ops->remain_on_channel) { | |
4599 | err = -EOPNOTSUPP; | |
4600 | goto out; | |
4601 | } | |
4602 | ||
4603 | if (!netif_running(dev)) { | |
4604 | err = -ENETDOWN; | |
4605 | goto out; | |
4606 | } | |
4607 | ||
4608 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4609 | channel_type = nla_get_u32( | |
4610 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4611 | if (channel_type != NL80211_CHAN_NO_HT && | |
4612 | channel_type != NL80211_CHAN_HT20 && | |
4613 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4614 | channel_type != NL80211_CHAN_HT40MINUS) { |
9588bbd5 JM |
4615 | err = -EINVAL; |
4616 | goto out; | |
579d7534 | 4617 | } |
9588bbd5 JM |
4618 | } |
4619 | ||
4620 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4621 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4622 | if (chan == NULL) { | |
4623 | err = -EINVAL; | |
4624 | goto out; | |
4625 | } | |
4626 | ||
4627 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4628 | if (!msg) { | |
4629 | err = -ENOMEM; | |
4630 | goto out; | |
4631 | } | |
4632 | ||
4633 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4634 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4635 | ||
4636 | if (IS_ERR(hdr)) { | |
4637 | err = PTR_ERR(hdr); | |
4638 | goto free_msg; | |
4639 | } | |
4640 | ||
4641 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4642 | channel_type, duration, &cookie); | |
4643 | ||
4644 | if (err) | |
4645 | goto free_msg; | |
4646 | ||
4647 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4648 | ||
4649 | genlmsg_end(msg, hdr); | |
4650 | err = genlmsg_reply(msg, info); | |
4651 | goto out; | |
4652 | ||
4653 | nla_put_failure: | |
4654 | err = -ENOBUFS; | |
4655 | free_msg: | |
4656 | nlmsg_free(msg); | |
4657 | out: | |
4658 | cfg80211_unlock_rdev(rdev); | |
4659 | dev_put(dev); | |
4660 | unlock_rtnl: | |
4661 | rtnl_unlock(); | |
4662 | return err; | |
4663 | } | |
4664 | ||
4665 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4666 | struct genl_info *info) | |
4667 | { | |
4668 | struct cfg80211_registered_device *rdev; | |
4669 | struct net_device *dev; | |
4670 | u64 cookie; | |
4671 | int err; | |
4672 | ||
4673 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4674 | return -EINVAL; | |
4675 | ||
4676 | rtnl_lock(); | |
4677 | ||
4678 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4679 | if (err) | |
4680 | goto unlock_rtnl; | |
4681 | ||
4682 | if (!rdev->ops->cancel_remain_on_channel) { | |
4683 | err = -EOPNOTSUPP; | |
4684 | goto out; | |
4685 | } | |
4686 | ||
4687 | if (!netif_running(dev)) { | |
4688 | err = -ENETDOWN; | |
4689 | goto out; | |
4690 | } | |
4691 | ||
4692 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); | |
4693 | ||
4694 | err = rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); | |
4695 | ||
4696 | out: | |
4697 | cfg80211_unlock_rdev(rdev); | |
4698 | dev_put(dev); | |
4699 | unlock_rtnl: | |
4700 | rtnl_unlock(); | |
4701 | return err; | |
4702 | } | |
4703 | ||
13ae75b1 JM |
4704 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4705 | u8 *rates, u8 rates_len) | |
4706 | { | |
4707 | u8 i; | |
4708 | u32 mask = 0; | |
4709 | ||
4710 | for (i = 0; i < rates_len; i++) { | |
4711 | int rate = (rates[i] & 0x7f) * 5; | |
4712 | int ridx; | |
4713 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4714 | struct ieee80211_rate *srate = | |
4715 | &sband->bitrates[ridx]; | |
4716 | if (rate == srate->bitrate) { | |
4717 | mask |= 1 << ridx; | |
4718 | break; | |
4719 | } | |
4720 | } | |
4721 | if (ridx == sband->n_bitrates) | |
4722 | return 0; /* rate not found */ | |
4723 | } | |
4724 | ||
4725 | return mask; | |
4726 | } | |
4727 | ||
b54452b0 | 4728 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4729 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4730 | .len = NL80211_MAX_SUPP_RATES }, | |
4731 | }; | |
4732 | ||
4733 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4734 | struct genl_info *info) | |
4735 | { | |
4736 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4737 | struct cfg80211_registered_device *rdev; | |
4738 | struct cfg80211_bitrate_mask mask; | |
4739 | int err, rem, i; | |
4740 | struct net_device *dev; | |
4741 | struct nlattr *tx_rates; | |
4742 | struct ieee80211_supported_band *sband; | |
4743 | ||
4744 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4745 | return -EINVAL; | |
4746 | ||
4747 | rtnl_lock(); | |
4748 | ||
4749 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4750 | if (err) | |
4751 | goto unlock_rtnl; | |
4752 | ||
4753 | if (!rdev->ops->set_bitrate_mask) { | |
4754 | err = -EOPNOTSUPP; | |
4755 | goto unlock; | |
4756 | } | |
4757 | ||
4758 | memset(&mask, 0, sizeof(mask)); | |
4759 | /* Default to all rates enabled */ | |
4760 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4761 | sband = rdev->wiphy.bands[i]; | |
4762 | mask.control[i].legacy = | |
4763 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4764 | } | |
4765 | ||
4766 | /* | |
4767 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4768 | * directly to the enum ieee80211_band values used in cfg80211. | |
4769 | */ | |
4770 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4771 | { | |
4772 | enum ieee80211_band band = nla_type(tx_rates); | |
4773 | if (band < 0 || band >= IEEE80211_NUM_BANDS) { | |
4774 | err = -EINVAL; | |
4775 | goto unlock; | |
4776 | } | |
4777 | sband = rdev->wiphy.bands[band]; | |
4778 | if (sband == NULL) { | |
4779 | err = -EINVAL; | |
4780 | goto unlock; | |
4781 | } | |
4782 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), | |
4783 | nla_len(tx_rates), nl80211_txattr_policy); | |
4784 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4785 | mask.control[band].legacy = rateset_to_mask( | |
4786 | sband, | |
4787 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4788 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4789 | if (mask.control[band].legacy == 0) { | |
4790 | err = -EINVAL; | |
4791 | goto unlock; | |
4792 | } | |
4793 | } | |
4794 | } | |
4795 | ||
4796 | err = rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); | |
4797 | ||
4798 | unlock: | |
4799 | dev_put(dev); | |
4800 | cfg80211_unlock_rdev(rdev); | |
4801 | unlock_rtnl: | |
4802 | rtnl_unlock(); | |
4803 | return err; | |
4804 | } | |
4805 | ||
2e161f78 | 4806 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 JM |
4807 | { |
4808 | struct cfg80211_registered_device *rdev; | |
4809 | struct net_device *dev; | |
2e161f78 | 4810 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4811 | int err; |
4812 | ||
4813 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4814 | return -EINVAL; | |
4815 | ||
2e161f78 JB |
4816 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4817 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 JM |
4818 | |
4819 | rtnl_lock(); | |
4820 | ||
4821 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4822 | if (err) | |
4823 | goto unlock_rtnl; | |
4824 | ||
9d38d85d JB |
4825 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4826 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
026331c4 JM |
4827 | err = -EOPNOTSUPP; |
4828 | goto out; | |
4829 | } | |
4830 | ||
4831 | /* not much point in registering if we can't reply */ | |
2e161f78 | 4832 | if (!rdev->ops->mgmt_tx) { |
026331c4 JM |
4833 | err = -EOPNOTSUPP; |
4834 | goto out; | |
4835 | } | |
4836 | ||
2e161f78 JB |
4837 | err = cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
4838 | frame_type, | |
026331c4 JM |
4839 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4840 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
4841 | out: | |
4842 | cfg80211_unlock_rdev(rdev); | |
4843 | dev_put(dev); | |
4844 | unlock_rtnl: | |
4845 | rtnl_unlock(); | |
4846 | return err; | |
4847 | } | |
4848 | ||
2e161f78 | 4849 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 JM |
4850 | { |
4851 | struct cfg80211_registered_device *rdev; | |
4852 | struct net_device *dev; | |
4853 | struct ieee80211_channel *chan; | |
4854 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4855 | bool channel_type_valid = false; |
026331c4 JM |
4856 | u32 freq; |
4857 | int err; | |
4858 | void *hdr; | |
4859 | u64 cookie; | |
4860 | struct sk_buff *msg; | |
4861 | ||
4862 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4863 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4864 | return -EINVAL; | |
4865 | ||
4866 | rtnl_lock(); | |
4867 | ||
4868 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4869 | if (err) | |
4870 | goto unlock_rtnl; | |
4871 | ||
2e161f78 | 4872 | if (!rdev->ops->mgmt_tx) { |
026331c4 JM |
4873 | err = -EOPNOTSUPP; |
4874 | goto out; | |
4875 | } | |
4876 | ||
9d38d85d JB |
4877 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4878 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) { | |
026331c4 JM |
4879 | err = -EOPNOTSUPP; |
4880 | goto out; | |
4881 | } | |
4882 | ||
4883 | if (!netif_running(dev)) { | |
4884 | err = -ENETDOWN; | |
4885 | goto out; | |
4886 | } | |
4887 | ||
4888 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
4889 | channel_type = nla_get_u32( | |
4890 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4891 | if (channel_type != NL80211_CHAN_NO_HT && | |
4892 | channel_type != NL80211_CHAN_HT20 && | |
4893 | channel_type != NL80211_CHAN_HT40PLUS && | |
579d7534 | 4894 | channel_type != NL80211_CHAN_HT40MINUS) { |
026331c4 JM |
4895 | err = -EINVAL; |
4896 | goto out; | |
579d7534 | 4897 | } |
252aa631 | 4898 | channel_type_valid = true; |
026331c4 JM |
4899 | } |
4900 | ||
4901 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4902 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4903 | if (chan == NULL) { | |
4904 | err = -EINVAL; | |
4905 | goto out; | |
4906 | } | |
4907 | ||
4908 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4909 | if (!msg) { | |
4910 | err = -ENOMEM; | |
4911 | goto out; | |
4912 | } | |
4913 | ||
4914 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4915 | NL80211_CMD_FRAME); |
026331c4 JM |
4916 | |
4917 | if (IS_ERR(hdr)) { | |
4918 | err = PTR_ERR(hdr); | |
4919 | goto free_msg; | |
4920 | } | |
2e161f78 JB |
4921 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type, |
4922 | channel_type_valid, | |
4923 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4924 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4925 | &cookie); | |
026331c4 JM |
4926 | if (err) |
4927 | goto free_msg; | |
4928 | ||
4929 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4930 | ||
4931 | genlmsg_end(msg, hdr); | |
4932 | err = genlmsg_reply(msg, info); | |
4933 | goto out; | |
4934 | ||
4935 | nla_put_failure: | |
4936 | err = -ENOBUFS; | |
4937 | free_msg: | |
4938 | nlmsg_free(msg); | |
4939 | out: | |
4940 | cfg80211_unlock_rdev(rdev); | |
4941 | dev_put(dev); | |
4942 | unlock_rtnl: | |
4943 | rtnl_unlock(); | |
4944 | return err; | |
4945 | } | |
4946 | ||
ffb9eb3d KV |
4947 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4948 | { | |
4949 | struct cfg80211_registered_device *rdev; | |
4950 | struct wireless_dev *wdev; | |
4951 | struct net_device *dev; | |
4952 | u8 ps_state; | |
4953 | bool state; | |
4954 | int err; | |
4955 | ||
4956 | if (!info->attrs[NL80211_ATTR_PS_STATE]) { | |
4957 | err = -EINVAL; | |
4958 | goto out; | |
4959 | } | |
4960 | ||
4961 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4962 | ||
4963 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) { | |
4964 | err = -EINVAL; | |
4965 | goto out; | |
4966 | } | |
4967 | ||
4968 | rtnl_lock(); | |
4969 | ||
4970 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4971 | if (err) | |
4972 | goto unlock_rdev; | |
4973 | ||
4974 | wdev = dev->ieee80211_ptr; | |
4975 | ||
4976 | if (!rdev->ops->set_power_mgmt) { | |
4977 | err = -EOPNOTSUPP; | |
4978 | goto unlock_rdev; | |
4979 | } | |
4980 | ||
4981 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4982 | ||
4983 | if (state == wdev->ps) | |
4984 | goto unlock_rdev; | |
4985 | ||
4986 | wdev->ps = state; | |
4987 | ||
4988 | if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps, | |
4989 | wdev->ps_timeout)) | |
4990 | /* assume this means it's off */ | |
4991 | wdev->ps = false; | |
4992 | ||
4993 | unlock_rdev: | |
4994 | cfg80211_unlock_rdev(rdev); | |
4995 | dev_put(dev); | |
4996 | rtnl_unlock(); | |
4997 | ||
4998 | out: | |
4999 | return err; | |
5000 | } | |
5001 | ||
5002 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
5003 | { | |
5004 | struct cfg80211_registered_device *rdev; | |
5005 | enum nl80211_ps_state ps_state; | |
5006 | struct wireless_dev *wdev; | |
5007 | struct net_device *dev; | |
5008 | struct sk_buff *msg; | |
5009 | void *hdr; | |
5010 | int err; | |
5011 | ||
5012 | rtnl_lock(); | |
5013 | ||
5014 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
5015 | if (err) | |
5016 | goto unlock_rtnl; | |
5017 | ||
5018 | wdev = dev->ieee80211_ptr; | |
5019 | ||
5020 | if (!rdev->ops->set_power_mgmt) { | |
5021 | err = -EOPNOTSUPP; | |
5022 | goto out; | |
5023 | } | |
5024 | ||
5025 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
5026 | if (!msg) { | |
5027 | err = -ENOMEM; | |
5028 | goto out; | |
5029 | } | |
5030 | ||
5031 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
5032 | NL80211_CMD_GET_POWER_SAVE); | |
5033 | if (!hdr) { | |
5034 | err = -ENOMEM; | |
5035 | goto free_msg; | |
5036 | } | |
5037 | ||
5038 | if (wdev->ps) | |
5039 | ps_state = NL80211_PS_ENABLED; | |
5040 | else | |
5041 | ps_state = NL80211_PS_DISABLED; | |
5042 | ||
5043 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
5044 | ||
5045 | genlmsg_end(msg, hdr); | |
5046 | err = genlmsg_reply(msg, info); | |
5047 | goto out; | |
5048 | ||
5049 | nla_put_failure: | |
5050 | err = -ENOBUFS; | |
5051 | ||
5052 | free_msg: | |
5053 | nlmsg_free(msg); | |
5054 | ||
5055 | out: | |
5056 | cfg80211_unlock_rdev(rdev); | |
5057 | dev_put(dev); | |
5058 | ||
5059 | unlock_rtnl: | |
5060 | rtnl_unlock(); | |
5061 | ||
5062 | return err; | |
5063 | } | |
5064 | ||
d6dc1a38 JO |
5065 | static struct nla_policy |
5066 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
5067 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
5068 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
5069 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
5070 | }; | |
5071 | ||
5072 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
5073 | s32 threshold, u32 hysteresis) | |
5074 | { | |
5075 | struct cfg80211_registered_device *rdev; | |
5076 | struct wireless_dev *wdev; | |
5077 | struct net_device *dev; | |
5078 | int err; | |
5079 | ||
5080 | if (threshold > 0) | |
5081 | return -EINVAL; | |
5082 | ||
5083 | rtnl_lock(); | |
5084 | ||
5085 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
5086 | if (err) | |
5087 | goto unlock_rdev; | |
5088 | ||
5089 | wdev = dev->ieee80211_ptr; | |
5090 | ||
5091 | if (!rdev->ops->set_cqm_rssi_config) { | |
5092 | err = -EOPNOTSUPP; | |
5093 | goto unlock_rdev; | |
5094 | } | |
5095 | ||
5096 | if (wdev->iftype != NL80211_IFTYPE_STATION) { | |
5097 | err = -EOPNOTSUPP; | |
5098 | goto unlock_rdev; | |
5099 | } | |
5100 | ||
5101 | err = rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, | |
5102 | threshold, hysteresis); | |
5103 | ||
5104 | unlock_rdev: | |
5105 | cfg80211_unlock_rdev(rdev); | |
5106 | dev_put(dev); | |
5107 | rtnl_unlock(); | |
5108 | ||
5109 | return err; | |
5110 | } | |
5111 | ||
5112 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
5113 | { | |
5114 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
5115 | struct nlattr *cqm; | |
5116 | int err; | |
5117 | ||
5118 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
5119 | if (!cqm) { | |
5120 | err = -EINVAL; | |
5121 | goto out; | |
5122 | } | |
5123 | ||
5124 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
5125 | nl80211_attr_cqm_policy); | |
5126 | if (err) | |
5127 | goto out; | |
5128 | ||
5129 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
5130 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
5131 | s32 threshold; | |
5132 | u32 hysteresis; | |
5133 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
5134 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
5135 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
5136 | } else | |
5137 | err = -EINVAL; | |
5138 | ||
5139 | out: | |
5140 | return err; | |
5141 | } | |
5142 | ||
55682965 JB |
5143 | static struct genl_ops nl80211_ops[] = { |
5144 | { | |
5145 | .cmd = NL80211_CMD_GET_WIPHY, | |
5146 | .doit = nl80211_get_wiphy, | |
5147 | .dumpit = nl80211_dump_wiphy, | |
5148 | .policy = nl80211_policy, | |
5149 | /* can be retrieved by unprivileged users */ | |
5150 | }, | |
5151 | { | |
5152 | .cmd = NL80211_CMD_SET_WIPHY, | |
5153 | .doit = nl80211_set_wiphy, | |
5154 | .policy = nl80211_policy, | |
5155 | .flags = GENL_ADMIN_PERM, | |
5156 | }, | |
5157 | { | |
5158 | .cmd = NL80211_CMD_GET_INTERFACE, | |
5159 | .doit = nl80211_get_interface, | |
5160 | .dumpit = nl80211_dump_interface, | |
5161 | .policy = nl80211_policy, | |
5162 | /* can be retrieved by unprivileged users */ | |
5163 | }, | |
5164 | { | |
5165 | .cmd = NL80211_CMD_SET_INTERFACE, | |
5166 | .doit = nl80211_set_interface, | |
5167 | .policy = nl80211_policy, | |
5168 | .flags = GENL_ADMIN_PERM, | |
5169 | }, | |
5170 | { | |
5171 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
5172 | .doit = nl80211_new_interface, | |
5173 | .policy = nl80211_policy, | |
5174 | .flags = GENL_ADMIN_PERM, | |
5175 | }, | |
5176 | { | |
5177 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
5178 | .doit = nl80211_del_interface, | |
5179 | .policy = nl80211_policy, | |
41ade00f JB |
5180 | .flags = GENL_ADMIN_PERM, |
5181 | }, | |
5182 | { | |
5183 | .cmd = NL80211_CMD_GET_KEY, | |
5184 | .doit = nl80211_get_key, | |
5185 | .policy = nl80211_policy, | |
5186 | .flags = GENL_ADMIN_PERM, | |
5187 | }, | |
5188 | { | |
5189 | .cmd = NL80211_CMD_SET_KEY, | |
5190 | .doit = nl80211_set_key, | |
5191 | .policy = nl80211_policy, | |
5192 | .flags = GENL_ADMIN_PERM, | |
5193 | }, | |
5194 | { | |
5195 | .cmd = NL80211_CMD_NEW_KEY, | |
5196 | .doit = nl80211_new_key, | |
5197 | .policy = nl80211_policy, | |
5198 | .flags = GENL_ADMIN_PERM, | |
5199 | }, | |
5200 | { | |
5201 | .cmd = NL80211_CMD_DEL_KEY, | |
5202 | .doit = nl80211_del_key, | |
5203 | .policy = nl80211_policy, | |
55682965 JB |
5204 | .flags = GENL_ADMIN_PERM, |
5205 | }, | |
ed1b6cc7 JB |
5206 | { |
5207 | .cmd = NL80211_CMD_SET_BEACON, | |
5208 | .policy = nl80211_policy, | |
5209 | .flags = GENL_ADMIN_PERM, | |
5210 | .doit = nl80211_addset_beacon, | |
5211 | }, | |
5212 | { | |
5213 | .cmd = NL80211_CMD_NEW_BEACON, | |
5214 | .policy = nl80211_policy, | |
5215 | .flags = GENL_ADMIN_PERM, | |
5216 | .doit = nl80211_addset_beacon, | |
5217 | }, | |
5218 | { | |
5219 | .cmd = NL80211_CMD_DEL_BEACON, | |
5220 | .policy = nl80211_policy, | |
5221 | .flags = GENL_ADMIN_PERM, | |
5222 | .doit = nl80211_del_beacon, | |
5223 | }, | |
5727ef1b JB |
5224 | { |
5225 | .cmd = NL80211_CMD_GET_STATION, | |
5226 | .doit = nl80211_get_station, | |
2ec600d6 | 5227 | .dumpit = nl80211_dump_station, |
5727ef1b | 5228 | .policy = nl80211_policy, |
5727ef1b JB |
5229 | }, |
5230 | { | |
5231 | .cmd = NL80211_CMD_SET_STATION, | |
5232 | .doit = nl80211_set_station, | |
5233 | .policy = nl80211_policy, | |
5234 | .flags = GENL_ADMIN_PERM, | |
5235 | }, | |
5236 | { | |
5237 | .cmd = NL80211_CMD_NEW_STATION, | |
5238 | .doit = nl80211_new_station, | |
5239 | .policy = nl80211_policy, | |
5240 | .flags = GENL_ADMIN_PERM, | |
5241 | }, | |
5242 | { | |
5243 | .cmd = NL80211_CMD_DEL_STATION, | |
5244 | .doit = nl80211_del_station, | |
5245 | .policy = nl80211_policy, | |
2ec600d6 LCC |
5246 | .flags = GENL_ADMIN_PERM, |
5247 | }, | |
5248 | { | |
5249 | .cmd = NL80211_CMD_GET_MPATH, | |
5250 | .doit = nl80211_get_mpath, | |
5251 | .dumpit = nl80211_dump_mpath, | |
5252 | .policy = nl80211_policy, | |
5253 | .flags = GENL_ADMIN_PERM, | |
5254 | }, | |
5255 | { | |
5256 | .cmd = NL80211_CMD_SET_MPATH, | |
5257 | .doit = nl80211_set_mpath, | |
5258 | .policy = nl80211_policy, | |
5259 | .flags = GENL_ADMIN_PERM, | |
5260 | }, | |
5261 | { | |
5262 | .cmd = NL80211_CMD_NEW_MPATH, | |
5263 | .doit = nl80211_new_mpath, | |
5264 | .policy = nl80211_policy, | |
5265 | .flags = GENL_ADMIN_PERM, | |
5266 | }, | |
5267 | { | |
5268 | .cmd = NL80211_CMD_DEL_MPATH, | |
5269 | .doit = nl80211_del_mpath, | |
5270 | .policy = nl80211_policy, | |
9f1ba906 JM |
5271 | .flags = GENL_ADMIN_PERM, |
5272 | }, | |
5273 | { | |
5274 | .cmd = NL80211_CMD_SET_BSS, | |
5275 | .doit = nl80211_set_bss, | |
5276 | .policy = nl80211_policy, | |
b2e1b302 LR |
5277 | .flags = GENL_ADMIN_PERM, |
5278 | }, | |
f130347c LR |
5279 | { |
5280 | .cmd = NL80211_CMD_GET_REG, | |
5281 | .doit = nl80211_get_reg, | |
5282 | .policy = nl80211_policy, | |
5283 | /* can be retrieved by unprivileged users */ | |
5284 | }, | |
b2e1b302 LR |
5285 | { |
5286 | .cmd = NL80211_CMD_SET_REG, | |
5287 | .doit = nl80211_set_reg, | |
5288 | .policy = nl80211_policy, | |
5289 | .flags = GENL_ADMIN_PERM, | |
5290 | }, | |
5291 | { | |
5292 | .cmd = NL80211_CMD_REQ_SET_REG, | |
5293 | .doit = nl80211_req_set_reg, | |
5294 | .policy = nl80211_policy, | |
93da9cc1 | 5295 | .flags = GENL_ADMIN_PERM, |
5296 | }, | |
5297 | { | |
5298 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
5299 | .doit = nl80211_get_mesh_params, | |
5300 | .policy = nl80211_policy, | |
5301 | /* can be retrieved by unprivileged users */ | |
5302 | }, | |
5303 | { | |
5304 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
5305 | .doit = nl80211_set_mesh_params, | |
5306 | .policy = nl80211_policy, | |
9aed3cc1 JM |
5307 | .flags = GENL_ADMIN_PERM, |
5308 | }, | |
2a519311 JB |
5309 | { |
5310 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
5311 | .doit = nl80211_trigger_scan, | |
5312 | .policy = nl80211_policy, | |
5313 | .flags = GENL_ADMIN_PERM, | |
5314 | }, | |
5315 | { | |
5316 | .cmd = NL80211_CMD_GET_SCAN, | |
5317 | .policy = nl80211_policy, | |
5318 | .dumpit = nl80211_dump_scan, | |
5319 | }, | |
636a5d36 JM |
5320 | { |
5321 | .cmd = NL80211_CMD_AUTHENTICATE, | |
5322 | .doit = nl80211_authenticate, | |
5323 | .policy = nl80211_policy, | |
5324 | .flags = GENL_ADMIN_PERM, | |
5325 | }, | |
5326 | { | |
5327 | .cmd = NL80211_CMD_ASSOCIATE, | |
5328 | .doit = nl80211_associate, | |
5329 | .policy = nl80211_policy, | |
5330 | .flags = GENL_ADMIN_PERM, | |
5331 | }, | |
5332 | { | |
5333 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
5334 | .doit = nl80211_deauthenticate, | |
5335 | .policy = nl80211_policy, | |
5336 | .flags = GENL_ADMIN_PERM, | |
5337 | }, | |
5338 | { | |
5339 | .cmd = NL80211_CMD_DISASSOCIATE, | |
5340 | .doit = nl80211_disassociate, | |
5341 | .policy = nl80211_policy, | |
5342 | .flags = GENL_ADMIN_PERM, | |
5343 | }, | |
04a773ad JB |
5344 | { |
5345 | .cmd = NL80211_CMD_JOIN_IBSS, | |
5346 | .doit = nl80211_join_ibss, | |
5347 | .policy = nl80211_policy, | |
5348 | .flags = GENL_ADMIN_PERM, | |
5349 | }, | |
5350 | { | |
5351 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
5352 | .doit = nl80211_leave_ibss, | |
5353 | .policy = nl80211_policy, | |
5354 | .flags = GENL_ADMIN_PERM, | |
5355 | }, | |
aff89a9b JB |
5356 | #ifdef CONFIG_NL80211_TESTMODE |
5357 | { | |
5358 | .cmd = NL80211_CMD_TESTMODE, | |
5359 | .doit = nl80211_testmode_do, | |
5360 | .policy = nl80211_policy, | |
5361 | .flags = GENL_ADMIN_PERM, | |
5362 | }, | |
5363 | #endif | |
b23aa676 SO |
5364 | { |
5365 | .cmd = NL80211_CMD_CONNECT, | |
5366 | .doit = nl80211_connect, | |
5367 | .policy = nl80211_policy, | |
5368 | .flags = GENL_ADMIN_PERM, | |
5369 | }, | |
5370 | { | |
5371 | .cmd = NL80211_CMD_DISCONNECT, | |
5372 | .doit = nl80211_disconnect, | |
5373 | .policy = nl80211_policy, | |
5374 | .flags = GENL_ADMIN_PERM, | |
5375 | }, | |
463d0183 JB |
5376 | { |
5377 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
5378 | .doit = nl80211_wiphy_netns, | |
5379 | .policy = nl80211_policy, | |
5380 | .flags = GENL_ADMIN_PERM, | |
5381 | }, | |
61fa713c HS |
5382 | { |
5383 | .cmd = NL80211_CMD_GET_SURVEY, | |
5384 | .policy = nl80211_policy, | |
5385 | .dumpit = nl80211_dump_survey, | |
5386 | }, | |
67fbb16b SO |
5387 | { |
5388 | .cmd = NL80211_CMD_SET_PMKSA, | |
5389 | .doit = nl80211_setdel_pmksa, | |
5390 | .policy = nl80211_policy, | |
5391 | .flags = GENL_ADMIN_PERM, | |
5392 | }, | |
5393 | { | |
5394 | .cmd = NL80211_CMD_DEL_PMKSA, | |
5395 | .doit = nl80211_setdel_pmksa, | |
5396 | .policy = nl80211_policy, | |
5397 | .flags = GENL_ADMIN_PERM, | |
5398 | }, | |
5399 | { | |
5400 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
5401 | .doit = nl80211_flush_pmksa, | |
5402 | .policy = nl80211_policy, | |
5403 | .flags = GENL_ADMIN_PERM, | |
5404 | }, | |
9588bbd5 JM |
5405 | { |
5406 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
5407 | .doit = nl80211_remain_on_channel, | |
5408 | .policy = nl80211_policy, | |
5409 | .flags = GENL_ADMIN_PERM, | |
5410 | }, | |
5411 | { | |
5412 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5413 | .doit = nl80211_cancel_remain_on_channel, | |
5414 | .policy = nl80211_policy, | |
5415 | .flags = GENL_ADMIN_PERM, | |
5416 | }, | |
13ae75b1 JM |
5417 | { |
5418 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
5419 | .doit = nl80211_set_tx_bitrate_mask, | |
5420 | .policy = nl80211_policy, | |
5421 | .flags = GENL_ADMIN_PERM, | |
5422 | }, | |
026331c4 | 5423 | { |
2e161f78 JB |
5424 | .cmd = NL80211_CMD_REGISTER_FRAME, |
5425 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
5426 | .policy = nl80211_policy, |
5427 | .flags = GENL_ADMIN_PERM, | |
5428 | }, | |
5429 | { | |
2e161f78 JB |
5430 | .cmd = NL80211_CMD_FRAME, |
5431 | .doit = nl80211_tx_mgmt, | |
026331c4 JM |
5432 | .policy = nl80211_policy, |
5433 | .flags = GENL_ADMIN_PERM, | |
5434 | }, | |
ffb9eb3d KV |
5435 | { |
5436 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
5437 | .doit = nl80211_set_power_save, | |
5438 | .policy = nl80211_policy, | |
5439 | .flags = GENL_ADMIN_PERM, | |
5440 | }, | |
5441 | { | |
5442 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
5443 | .doit = nl80211_get_power_save, | |
5444 | .policy = nl80211_policy, | |
5445 | /* can be retrieved by unprivileged users */ | |
5446 | }, | |
d6dc1a38 JO |
5447 | { |
5448 | .cmd = NL80211_CMD_SET_CQM, | |
5449 | .doit = nl80211_set_cqm, | |
5450 | .policy = nl80211_policy, | |
5451 | .flags = GENL_ADMIN_PERM, | |
5452 | }, | |
f444de05 JB |
5453 | { |
5454 | .cmd = NL80211_CMD_SET_CHANNEL, | |
5455 | .doit = nl80211_set_channel, | |
5456 | .policy = nl80211_policy, | |
5457 | .flags = GENL_ADMIN_PERM, | |
5458 | }, | |
55682965 | 5459 | }; |
9588bbd5 | 5460 | |
6039f6d2 JM |
5461 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
5462 | .name = "mlme", | |
5463 | }; | |
55682965 JB |
5464 | |
5465 | /* multicast groups */ | |
5466 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
5467 | .name = "config", | |
5468 | }; | |
2a519311 JB |
5469 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
5470 | .name = "scan", | |
5471 | }; | |
73d54c9e LR |
5472 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
5473 | .name = "regulatory", | |
5474 | }; | |
55682965 JB |
5475 | |
5476 | /* notification functions */ | |
5477 | ||
5478 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
5479 | { | |
5480 | struct sk_buff *msg; | |
5481 | ||
fd2120ca | 5482 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
5483 | if (!msg) |
5484 | return; | |
5485 | ||
5486 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
5487 | nlmsg_free(msg); | |
5488 | return; | |
5489 | } | |
5490 | ||
463d0183 JB |
5491 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5492 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
5493 | } |
5494 | ||
362a415d JB |
5495 | static int nl80211_add_scan_req(struct sk_buff *msg, |
5496 | struct cfg80211_registered_device *rdev) | |
5497 | { | |
5498 | struct cfg80211_scan_request *req = rdev->scan_req; | |
5499 | struct nlattr *nest; | |
5500 | int i; | |
5501 | ||
667503dd JB |
5502 | ASSERT_RDEV_LOCK(rdev); |
5503 | ||
362a415d JB |
5504 | if (WARN_ON(!req)) |
5505 | return 0; | |
5506 | ||
5507 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
5508 | if (!nest) | |
5509 | goto nla_put_failure; | |
5510 | for (i = 0; i < req->n_ssids; i++) | |
5511 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
5512 | nla_nest_end(msg, nest); | |
5513 | ||
5514 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
5515 | if (!nest) | |
5516 | goto nla_put_failure; | |
5517 | for (i = 0; i < req->n_channels; i++) | |
5518 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
5519 | nla_nest_end(msg, nest); | |
5520 | ||
5521 | if (req->ie) | |
5522 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
5523 | ||
5524 | return 0; | |
5525 | nla_put_failure: | |
5526 | return -ENOBUFS; | |
5527 | } | |
5528 | ||
a538e2d5 JB |
5529 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
5530 | struct cfg80211_registered_device *rdev, | |
5531 | struct net_device *netdev, | |
5532 | u32 pid, u32 seq, int flags, | |
5533 | u32 cmd) | |
2a519311 JB |
5534 | { |
5535 | void *hdr; | |
5536 | ||
5537 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
5538 | if (!hdr) | |
5539 | return -1; | |
5540 | ||
b5850a7a | 5541 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
5542 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
5543 | ||
362a415d JB |
5544 | /* ignore errors and send incomplete event anyway */ |
5545 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
5546 | |
5547 | return genlmsg_end(msg, hdr); | |
5548 | ||
5549 | nla_put_failure: | |
5550 | genlmsg_cancel(msg, hdr); | |
5551 | return -EMSGSIZE; | |
5552 | } | |
5553 | ||
a538e2d5 JB |
5554 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
5555 | struct net_device *netdev) | |
5556 | { | |
5557 | struct sk_buff *msg; | |
5558 | ||
5559 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
5560 | if (!msg) | |
5561 | return; | |
5562 | ||
5563 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
5564 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
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); | |
a538e2d5 JB |
5571 | } |
5572 | ||
2a519311 JB |
5573 | void nl80211_send_scan_done(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_NEW_SCAN_RESULTS) < 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 | ||
5592 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
5593 | struct net_device *netdev) | |
5594 | { | |
5595 | struct sk_buff *msg; | |
5596 | ||
fd2120ca | 5597 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
5598 | if (!msg) |
5599 | return; | |
5600 | ||
a538e2d5 JB |
5601 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
5602 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5603 | nlmsg_free(msg); |
5604 | return; | |
5605 | } | |
5606 | ||
463d0183 JB |
5607 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5608 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5609 | } |
5610 | ||
73d54c9e LR |
5611 | /* |
5612 | * This can happen on global regulatory changes or device specific settings | |
5613 | * based on custom world regulatory domains. | |
5614 | */ | |
5615 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5616 | { | |
5617 | struct sk_buff *msg; | |
5618 | void *hdr; | |
5619 | ||
fd2120ca | 5620 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5621 | if (!msg) |
5622 | return; | |
5623 | ||
5624 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5625 | if (!hdr) { | |
5626 | nlmsg_free(msg); | |
5627 | return; | |
5628 | } | |
5629 | ||
5630 | /* Userspace can always count this one always being set */ | |
5631 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5632 | ||
5633 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5634 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5635 | NL80211_REGDOM_TYPE_WORLD); | |
5636 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5637 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5638 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5639 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5640 | request->intersect) | |
5641 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5642 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5643 | else { | |
5644 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5645 | NL80211_REGDOM_TYPE_COUNTRY); | |
5646 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5647 | } | |
5648 | ||
5649 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5650 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5651 | ||
5652 | if (genlmsg_end(msg, hdr) < 0) { | |
5653 | nlmsg_free(msg); | |
5654 | return; | |
5655 | } | |
5656 | ||
bc43b28c | 5657 | rcu_read_lock(); |
463d0183 | 5658 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5659 | GFP_ATOMIC); |
5660 | rcu_read_unlock(); | |
73d54c9e LR |
5661 | |
5662 | return; | |
5663 | ||
5664 | nla_put_failure: | |
5665 | genlmsg_cancel(msg, hdr); | |
5666 | nlmsg_free(msg); | |
5667 | } | |
5668 | ||
6039f6d2 JM |
5669 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5670 | struct net_device *netdev, | |
5671 | const u8 *buf, size_t len, | |
e6d6e342 | 5672 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5673 | { |
5674 | struct sk_buff *msg; | |
5675 | void *hdr; | |
5676 | ||
e6d6e342 | 5677 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5678 | if (!msg) |
5679 | return; | |
5680 | ||
5681 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5682 | if (!hdr) { | |
5683 | nlmsg_free(msg); | |
5684 | return; | |
5685 | } | |
5686 | ||
5687 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5688 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5689 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5690 | ||
5691 | if (genlmsg_end(msg, hdr) < 0) { | |
5692 | nlmsg_free(msg); | |
5693 | return; | |
5694 | } | |
5695 | ||
463d0183 JB |
5696 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5697 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5698 | return; |
5699 | ||
5700 | nla_put_failure: | |
5701 | genlmsg_cancel(msg, hdr); | |
5702 | nlmsg_free(msg); | |
5703 | } | |
5704 | ||
5705 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5706 | struct net_device *netdev, const u8 *buf, |
5707 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5708 | { |
5709 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5710 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5711 | } |
5712 | ||
5713 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5714 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5715 | size_t len, gfp_t gfp) |
6039f6d2 | 5716 | { |
e6d6e342 JB |
5717 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5718 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5719 | } |
5720 | ||
53b46b84 | 5721 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5722 | struct net_device *netdev, const u8 *buf, |
5723 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5724 | { |
5725 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5726 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5727 | } |
5728 | ||
53b46b84 JM |
5729 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5730 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5731 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5732 | { |
5733 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5734 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5735 | } |
5736 | ||
1b06bb40 LR |
5737 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5738 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5739 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5740 | { |
5741 | struct sk_buff *msg; | |
5742 | void *hdr; | |
5743 | ||
e6d6e342 | 5744 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5745 | if (!msg) |
5746 | return; | |
5747 | ||
5748 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5749 | if (!hdr) { | |
5750 | nlmsg_free(msg); | |
5751 | return; | |
5752 | } | |
5753 | ||
5754 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5755 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5756 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5757 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5758 | ||
5759 | if (genlmsg_end(msg, hdr) < 0) { | |
5760 | nlmsg_free(msg); | |
5761 | return; | |
5762 | } | |
5763 | ||
463d0183 JB |
5764 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5765 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5766 | return; |
5767 | ||
5768 | nla_put_failure: | |
5769 | genlmsg_cancel(msg, hdr); | |
5770 | nlmsg_free(msg); | |
5771 | } | |
5772 | ||
5773 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5774 | struct net_device *netdev, const u8 *addr, |
5775 | gfp_t gfp) | |
1965c853 JM |
5776 | { |
5777 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5778 | addr, gfp); |
1965c853 JM |
5779 | } |
5780 | ||
5781 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5782 | struct net_device *netdev, const u8 *addr, |
5783 | gfp_t gfp) | |
1965c853 | 5784 | { |
e6d6e342 JB |
5785 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5786 | addr, gfp); | |
1965c853 JM |
5787 | } |
5788 | ||
b23aa676 SO |
5789 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5790 | struct net_device *netdev, const u8 *bssid, | |
5791 | const u8 *req_ie, size_t req_ie_len, | |
5792 | const u8 *resp_ie, size_t resp_ie_len, | |
5793 | u16 status, gfp_t gfp) | |
5794 | { | |
5795 | struct sk_buff *msg; | |
5796 | void *hdr; | |
5797 | ||
5798 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5799 | if (!msg) | |
5800 | return; | |
5801 | ||
5802 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5803 | if (!hdr) { | |
5804 | nlmsg_free(msg); | |
5805 | return; | |
5806 | } | |
5807 | ||
5808 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5809 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5810 | if (bssid) | |
5811 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5812 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5813 | if (req_ie) | |
5814 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5815 | if (resp_ie) | |
5816 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5817 | ||
5818 | if (genlmsg_end(msg, hdr) < 0) { | |
5819 | nlmsg_free(msg); | |
5820 | return; | |
5821 | } | |
5822 | ||
463d0183 JB |
5823 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5824 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5825 | return; |
5826 | ||
5827 | nla_put_failure: | |
5828 | genlmsg_cancel(msg, hdr); | |
5829 | nlmsg_free(msg); | |
5830 | ||
5831 | } | |
5832 | ||
5833 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5834 | struct net_device *netdev, const u8 *bssid, | |
5835 | const u8 *req_ie, size_t req_ie_len, | |
5836 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5837 | { | |
5838 | struct sk_buff *msg; | |
5839 | void *hdr; | |
5840 | ||
5841 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5842 | if (!msg) | |
5843 | return; | |
5844 | ||
5845 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5846 | if (!hdr) { | |
5847 | nlmsg_free(msg); | |
5848 | return; | |
5849 | } | |
5850 | ||
5851 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5852 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5853 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5854 | if (req_ie) | |
5855 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5856 | if (resp_ie) | |
5857 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5858 | ||
5859 | if (genlmsg_end(msg, hdr) < 0) { | |
5860 | nlmsg_free(msg); | |
5861 | return; | |
5862 | } | |
5863 | ||
463d0183 JB |
5864 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5865 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5866 | return; |
5867 | ||
5868 | nla_put_failure: | |
5869 | genlmsg_cancel(msg, hdr); | |
5870 | nlmsg_free(msg); | |
5871 | ||
5872 | } | |
5873 | ||
5874 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5875 | struct net_device *netdev, u16 reason, | |
667503dd | 5876 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5877 | { |
5878 | struct sk_buff *msg; | |
5879 | void *hdr; | |
5880 | ||
667503dd | 5881 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5882 | if (!msg) |
5883 | return; | |
5884 | ||
5885 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5886 | if (!hdr) { | |
5887 | nlmsg_free(msg); | |
5888 | return; | |
5889 | } | |
5890 | ||
5891 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5892 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5893 | if (from_ap && reason) | |
5894 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5895 | if (from_ap) | |
5896 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5897 | if (ie) | |
5898 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5899 | ||
5900 | if (genlmsg_end(msg, hdr) < 0) { | |
5901 | nlmsg_free(msg); | |
5902 | return; | |
5903 | } | |
5904 | ||
463d0183 JB |
5905 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5906 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5907 | return; |
5908 | ||
5909 | nla_put_failure: | |
5910 | genlmsg_cancel(msg, hdr); | |
5911 | nlmsg_free(msg); | |
5912 | ||
5913 | } | |
5914 | ||
04a773ad JB |
5915 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5916 | struct net_device *netdev, const u8 *bssid, | |
5917 | gfp_t gfp) | |
5918 | { | |
5919 | struct sk_buff *msg; | |
5920 | void *hdr; | |
5921 | ||
fd2120ca | 5922 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5923 | if (!msg) |
5924 | return; | |
5925 | ||
5926 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5927 | if (!hdr) { | |
5928 | nlmsg_free(msg); | |
5929 | return; | |
5930 | } | |
5931 | ||
5932 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5933 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5934 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5935 | ||
5936 | if (genlmsg_end(msg, hdr) < 0) { | |
5937 | nlmsg_free(msg); | |
5938 | return; | |
5939 | } | |
5940 | ||
463d0183 JB |
5941 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5942 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5943 | return; |
5944 | ||
5945 | nla_put_failure: | |
5946 | genlmsg_cancel(msg, hdr); | |
5947 | nlmsg_free(msg); | |
5948 | } | |
5949 | ||
a3b8b056 JM |
5950 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5951 | struct net_device *netdev, const u8 *addr, | |
5952 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5953 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5954 | { |
5955 | struct sk_buff *msg; | |
5956 | void *hdr; | |
5957 | ||
e6d6e342 | 5958 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5959 | if (!msg) |
5960 | return; | |
5961 | ||
5962 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5963 | if (!hdr) { | |
5964 | nlmsg_free(msg); | |
5965 | return; | |
5966 | } | |
5967 | ||
5968 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5969 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5970 | if (addr) | |
5971 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5972 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5973 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5974 | if (tsc) | |
5975 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5976 | ||
5977 | if (genlmsg_end(msg, hdr) < 0) { | |
5978 | nlmsg_free(msg); | |
5979 | return; | |
5980 | } | |
5981 | ||
463d0183 JB |
5982 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5983 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5984 | return; |
5985 | ||
5986 | nla_put_failure: | |
5987 | genlmsg_cancel(msg, hdr); | |
5988 | nlmsg_free(msg); | |
5989 | } | |
5990 | ||
6bad8766 LR |
5991 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5992 | struct ieee80211_channel *channel_before, | |
5993 | struct ieee80211_channel *channel_after) | |
5994 | { | |
5995 | struct sk_buff *msg; | |
5996 | void *hdr; | |
5997 | struct nlattr *nl_freq; | |
5998 | ||
fd2120ca | 5999 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
6000 | if (!msg) |
6001 | return; | |
6002 | ||
6003 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
6004 | if (!hdr) { | |
6005 | nlmsg_free(msg); | |
6006 | return; | |
6007 | } | |
6008 | ||
6009 | /* | |
6010 | * Since we are applying the beacon hint to a wiphy we know its | |
6011 | * wiphy_idx is valid | |
6012 | */ | |
6013 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
6014 | ||
6015 | /* Before */ | |
6016 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
6017 | if (!nl_freq) | |
6018 | goto nla_put_failure; | |
6019 | if (nl80211_msg_put_channel(msg, channel_before)) | |
6020 | goto nla_put_failure; | |
6021 | nla_nest_end(msg, nl_freq); | |
6022 | ||
6023 | /* After */ | |
6024 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
6025 | if (!nl_freq) | |
6026 | goto nla_put_failure; | |
6027 | if (nl80211_msg_put_channel(msg, channel_after)) | |
6028 | goto nla_put_failure; | |
6029 | nla_nest_end(msg, nl_freq); | |
6030 | ||
6031 | if (genlmsg_end(msg, hdr) < 0) { | |
6032 | nlmsg_free(msg); | |
6033 | return; | |
6034 | } | |
6035 | ||
463d0183 JB |
6036 | rcu_read_lock(); |
6037 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
6038 | GFP_ATOMIC); | |
6039 | rcu_read_unlock(); | |
6bad8766 LR |
6040 | |
6041 | return; | |
6042 | ||
6043 | nla_put_failure: | |
6044 | genlmsg_cancel(msg, hdr); | |
6045 | nlmsg_free(msg); | |
6046 | } | |
6047 | ||
9588bbd5 JM |
6048 | static void nl80211_send_remain_on_chan_event( |
6049 | int cmd, struct cfg80211_registered_device *rdev, | |
6050 | struct net_device *netdev, u64 cookie, | |
6051 | struct ieee80211_channel *chan, | |
6052 | enum nl80211_channel_type channel_type, | |
6053 | unsigned int duration, gfp_t gfp) | |
6054 | { | |
6055 | struct sk_buff *msg; | |
6056 | void *hdr; | |
6057 | ||
6058 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6059 | if (!msg) | |
6060 | return; | |
6061 | ||
6062 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
6063 | if (!hdr) { | |
6064 | nlmsg_free(msg); | |
6065 | return; | |
6066 | } | |
6067 | ||
6068 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6069 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6070 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
6071 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
6072 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6073 | ||
6074 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
6075 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
6076 | ||
6077 | if (genlmsg_end(msg, hdr) < 0) { | |
6078 | nlmsg_free(msg); | |
6079 | return; | |
6080 | } | |
6081 | ||
6082 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6083 | nl80211_mlme_mcgrp.id, gfp); | |
6084 | return; | |
6085 | ||
6086 | nla_put_failure: | |
6087 | genlmsg_cancel(msg, hdr); | |
6088 | nlmsg_free(msg); | |
6089 | } | |
6090 | ||
6091 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
6092 | struct net_device *netdev, u64 cookie, | |
6093 | struct ieee80211_channel *chan, | |
6094 | enum nl80211_channel_type channel_type, | |
6095 | unsigned int duration, gfp_t gfp) | |
6096 | { | |
6097 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
6098 | rdev, netdev, cookie, chan, | |
6099 | channel_type, duration, gfp); | |
6100 | } | |
6101 | ||
6102 | void nl80211_send_remain_on_channel_cancel( | |
6103 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
6104 | u64 cookie, struct ieee80211_channel *chan, | |
6105 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
6106 | { | |
6107 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
6108 | rdev, netdev, cookie, chan, | |
6109 | channel_type, 0, gfp); | |
6110 | } | |
6111 | ||
98b62183 JB |
6112 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
6113 | struct net_device *dev, const u8 *mac_addr, | |
6114 | struct station_info *sinfo, gfp_t gfp) | |
6115 | { | |
6116 | struct sk_buff *msg; | |
6117 | ||
6118 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
6119 | if (!msg) | |
6120 | return; | |
6121 | ||
6122 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
6123 | nlmsg_free(msg); | |
6124 | return; | |
6125 | } | |
6126 | ||
6127 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6128 | nl80211_mlme_mcgrp.id, gfp); | |
6129 | } | |
6130 | ||
2e161f78 JB |
6131 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
6132 | struct net_device *netdev, u32 nlpid, | |
6133 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
6134 | { |
6135 | struct sk_buff *msg; | |
6136 | void *hdr; | |
6137 | int err; | |
6138 | ||
6139 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6140 | if (!msg) | |
6141 | return -ENOMEM; | |
6142 | ||
2e161f78 | 6143 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
6144 | if (!hdr) { |
6145 | nlmsg_free(msg); | |
6146 | return -ENOMEM; | |
6147 | } | |
6148 | ||
6149 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6150 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6151 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
6152 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
6153 | ||
6154 | err = genlmsg_end(msg, hdr); | |
6155 | if (err < 0) { | |
6156 | nlmsg_free(msg); | |
6157 | return err; | |
6158 | } | |
6159 | ||
6160 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
6161 | if (err < 0) | |
6162 | return err; | |
6163 | return 0; | |
6164 | ||
6165 | nla_put_failure: | |
6166 | genlmsg_cancel(msg, hdr); | |
6167 | nlmsg_free(msg); | |
6168 | return -ENOBUFS; | |
6169 | } | |
6170 | ||
2e161f78 JB |
6171 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
6172 | struct net_device *netdev, u64 cookie, | |
6173 | const u8 *buf, size_t len, bool ack, | |
6174 | gfp_t gfp) | |
026331c4 JM |
6175 | { |
6176 | struct sk_buff *msg; | |
6177 | void *hdr; | |
6178 | ||
6179 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
6180 | if (!msg) | |
6181 | return; | |
6182 | ||
2e161f78 | 6183 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
6184 | if (!hdr) { |
6185 | nlmsg_free(msg); | |
6186 | return; | |
6187 | } | |
6188 | ||
6189 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6190 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6191 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
6192 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
6193 | if (ack) | |
6194 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
6195 | ||
6196 | if (genlmsg_end(msg, hdr) < 0) { | |
6197 | nlmsg_free(msg); | |
6198 | return; | |
6199 | } | |
6200 | ||
6201 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
6202 | return; | |
6203 | ||
6204 | nla_put_failure: | |
6205 | genlmsg_cancel(msg, hdr); | |
6206 | nlmsg_free(msg); | |
6207 | } | |
6208 | ||
d6dc1a38 JO |
6209 | void |
6210 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
6211 | struct net_device *netdev, | |
6212 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
6213 | gfp_t gfp) | |
6214 | { | |
6215 | struct sk_buff *msg; | |
6216 | struct nlattr *pinfoattr; | |
6217 | void *hdr; | |
6218 | ||
6219 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
6220 | if (!msg) | |
6221 | return; | |
6222 | ||
6223 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
6224 | if (!hdr) { | |
6225 | nlmsg_free(msg); | |
6226 | return; | |
6227 | } | |
6228 | ||
6229 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
6230 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
6231 | ||
6232 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
6233 | if (!pinfoattr) | |
6234 | goto nla_put_failure; | |
6235 | ||
6236 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
6237 | rssi_event); | |
6238 | ||
6239 | nla_nest_end(msg, pinfoattr); | |
6240 | ||
6241 | if (genlmsg_end(msg, hdr) < 0) { | |
6242 | nlmsg_free(msg); | |
6243 | return; | |
6244 | } | |
6245 | ||
6246 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
6247 | nl80211_mlme_mcgrp.id, gfp); | |
6248 | return; | |
6249 | ||
6250 | nla_put_failure: | |
6251 | genlmsg_cancel(msg, hdr); | |
6252 | nlmsg_free(msg); | |
6253 | } | |
6254 | ||
026331c4 JM |
6255 | static int nl80211_netlink_notify(struct notifier_block * nb, |
6256 | unsigned long state, | |
6257 | void *_notify) | |
6258 | { | |
6259 | struct netlink_notify *notify = _notify; | |
6260 | struct cfg80211_registered_device *rdev; | |
6261 | struct wireless_dev *wdev; | |
6262 | ||
6263 | if (state != NETLINK_URELEASE) | |
6264 | return NOTIFY_DONE; | |
6265 | ||
6266 | rcu_read_lock(); | |
6267 | ||
6268 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
6269 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 6270 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
6271 | |
6272 | rcu_read_unlock(); | |
6273 | ||
6274 | return NOTIFY_DONE; | |
6275 | } | |
6276 | ||
6277 | static struct notifier_block nl80211_netlink_notifier = { | |
6278 | .notifier_call = nl80211_netlink_notify, | |
6279 | }; | |
6280 | ||
55682965 JB |
6281 | /* initialisation/exit functions */ |
6282 | ||
6283 | int nl80211_init(void) | |
6284 | { | |
0d63cbb5 | 6285 | int err; |
55682965 | 6286 | |
0d63cbb5 MM |
6287 | err = genl_register_family_with_ops(&nl80211_fam, |
6288 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
6289 | if (err) |
6290 | return err; | |
6291 | ||
55682965 JB |
6292 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
6293 | if (err) | |
6294 | goto err_out; | |
6295 | ||
2a519311 JB |
6296 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
6297 | if (err) | |
6298 | goto err_out; | |
6299 | ||
73d54c9e LR |
6300 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
6301 | if (err) | |
6302 | goto err_out; | |
6303 | ||
6039f6d2 JM |
6304 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
6305 | if (err) | |
6306 | goto err_out; | |
6307 | ||
aff89a9b JB |
6308 | #ifdef CONFIG_NL80211_TESTMODE |
6309 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
6310 | if (err) | |
6311 | goto err_out; | |
6312 | #endif | |
6313 | ||
026331c4 JM |
6314 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
6315 | if (err) | |
6316 | goto err_out; | |
6317 | ||
55682965 JB |
6318 | return 0; |
6319 | err_out: | |
6320 | genl_unregister_family(&nl80211_fam); | |
6321 | return err; | |
6322 | } | |
6323 | ||
6324 | void nl80211_exit(void) | |
6325 | { | |
026331c4 | 6326 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
6327 | genl_unregister_family(&nl80211_fam); |
6328 | } |