]>
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 | 25 | |
4c476991 JB |
26 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, |
27 | struct genl_info *info); | |
28 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
29 | struct genl_info *info); | |
30 | ||
55682965 JB |
31 | /* the netlink family */ |
32 | static struct genl_family nl80211_fam = { | |
33 | .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */ | |
34 | .name = "nl80211", /* have users key off the name instead */ | |
35 | .hdrsize = 0, /* no private header */ | |
36 | .version = 1, /* no particular meaning now */ | |
37 | .maxattr = NL80211_ATTR_MAX, | |
463d0183 | 38 | .netnsok = true, |
4c476991 JB |
39 | .pre_doit = nl80211_pre_doit, |
40 | .post_doit = nl80211_post_doit, | |
55682965 JB |
41 | }; |
42 | ||
79c97e97 | 43 | /* internal helper: get rdev and dev */ |
463d0183 | 44 | static int get_rdev_dev_by_info_ifindex(struct genl_info *info, |
79c97e97 | 45 | struct cfg80211_registered_device **rdev, |
55682965 JB |
46 | struct net_device **dev) |
47 | { | |
463d0183 | 48 | struct nlattr **attrs = info->attrs; |
55682965 JB |
49 | int ifindex; |
50 | ||
bba95fef | 51 | if (!attrs[NL80211_ATTR_IFINDEX]) |
55682965 JB |
52 | return -EINVAL; |
53 | ||
bba95fef | 54 | ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]); |
463d0183 | 55 | *dev = dev_get_by_index(genl_info_net(info), ifindex); |
55682965 JB |
56 | if (!*dev) |
57 | return -ENODEV; | |
58 | ||
463d0183 | 59 | *rdev = cfg80211_get_dev_from_ifindex(genl_info_net(info), ifindex); |
79c97e97 | 60 | if (IS_ERR(*rdev)) { |
55682965 | 61 | dev_put(*dev); |
79c97e97 | 62 | return PTR_ERR(*rdev); |
55682965 JB |
63 | } |
64 | ||
65 | return 0; | |
66 | } | |
67 | ||
68 | /* policy for the attributes */ | |
b54452b0 | 69 | static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { |
55682965 JB |
70 | [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, |
71 | [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, | |
079e24ed | 72 | .len = 20-1 }, |
31888487 | 73 | [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED }, |
72bdcf34 | 74 | [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 }, |
094d05dc | 75 | [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 }, |
b9a5f8ca JM |
76 | [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 }, |
77 | [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 }, | |
78 | [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 }, | |
79 | [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 }, | |
81077e82 | 80 | [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 }, |
55682965 JB |
81 | |
82 | [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 }, | |
83 | [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 }, | |
84 | [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 }, | |
41ade00f JB |
85 | |
86 | [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN }, | |
3e5d7649 | 87 | [NL80211_ATTR_PREV_BSSID] = { .type = NLA_BINARY, .len = ETH_ALEN }, |
41ade00f | 88 | |
b9454e83 | 89 | [NL80211_ATTR_KEY] = { .type = NLA_NESTED, }, |
41ade00f JB |
90 | [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY, |
91 | .len = WLAN_MAX_KEY_LEN }, | |
92 | [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 }, | |
93 | [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 }, | |
94 | [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
9f26a952 | 95 | [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, |
ed1b6cc7 JB |
96 | |
97 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
98 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
99 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
100 | .len = IEEE80211_MAX_DATA_LEN }, | |
101 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
102 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
103 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
104 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
105 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
106 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
107 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 108 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 109 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 110 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
111 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
112 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
113 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 114 | |
b2e1b302 LR |
115 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
116 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
117 | ||
9f1ba906 JM |
118 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
119 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
120 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
121 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
122 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 123 | |
93da9cc1 | 124 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
125 | ||
36aedc90 JM |
126 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
127 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
128 | |
129 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
130 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
131 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
132 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
133 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
134 | |
135 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
136 | .len = IEEE80211_MAX_SSID_LEN }, | |
137 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
138 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 139 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 140 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 141 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
142 | [NL80211_ATTR_STA_FLAGS2] = { |
143 | .len = sizeof(struct nl80211_sta_flag_update), | |
144 | }, | |
3f77316c | 145 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
146 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
147 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
148 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
149 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
150 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 151 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 152 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
153 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
154 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
155 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
156 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 157 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
158 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
159 | .len = IEEE80211_MAX_DATA_LEN }, | |
160 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 161 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 162 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 163 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 164 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
165 | |
166 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
167 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 168 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
55682965 JB |
169 | }; |
170 | ||
b9454e83 | 171 | /* policy for the attributes */ |
b54452b0 | 172 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 173 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
174 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
175 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
176 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
177 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
178 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
179 | }; | |
180 | ||
a043897a HS |
181 | /* ifidx get helper */ |
182 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
183 | { | |
184 | int res; | |
185 | ||
186 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
187 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
188 | nl80211_policy); | |
189 | if (res) | |
190 | return res; | |
191 | ||
192 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
193 | return -EINVAL; | |
194 | ||
195 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
196 | if (!res) | |
197 | return -EINVAL; | |
198 | return res; | |
199 | } | |
200 | ||
f4a11bb0 JB |
201 | /* IE validation */ |
202 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
203 | { | |
204 | const u8 *pos; | |
205 | int len; | |
206 | ||
207 | if (!attr) | |
208 | return true; | |
209 | ||
210 | pos = nla_data(attr); | |
211 | len = nla_len(attr); | |
212 | ||
213 | while (len) { | |
214 | u8 elemlen; | |
215 | ||
216 | if (len < 2) | |
217 | return false; | |
218 | len -= 2; | |
219 | ||
220 | elemlen = pos[1]; | |
221 | if (elemlen > len) | |
222 | return false; | |
223 | ||
224 | len -= elemlen; | |
225 | pos += 2 + elemlen; | |
226 | } | |
227 | ||
228 | return true; | |
229 | } | |
230 | ||
55682965 JB |
231 | /* message building helper */ |
232 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
233 | int flags, u8 cmd) | |
234 | { | |
235 | /* since there is no private header just add the generic one */ | |
236 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
237 | } | |
238 | ||
5dab3b8a LR |
239 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
240 | struct ieee80211_channel *chan) | |
241 | { | |
242 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
243 | chan->center_freq); | |
244 | ||
245 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
246 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
247 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
248 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
249 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
250 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
251 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
252 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
253 | ||
254 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
255 | DBM_TO_MBM(chan->max_power)); | |
256 | ||
257 | return 0; | |
258 | ||
259 | nla_put_failure: | |
260 | return -ENOBUFS; | |
261 | } | |
262 | ||
55682965 JB |
263 | /* netlink command implementations */ |
264 | ||
b9454e83 JB |
265 | struct key_parse { |
266 | struct key_params p; | |
267 | int idx; | |
268 | bool def, defmgmt; | |
269 | }; | |
270 | ||
271 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
272 | { | |
273 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
274 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
275 | nl80211_key_policy); | |
276 | if (err) | |
277 | return err; | |
278 | ||
279 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
280 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
281 | ||
282 | if (tb[NL80211_KEY_IDX]) | |
283 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
284 | ||
285 | if (tb[NL80211_KEY_DATA]) { | |
286 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
287 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
288 | } | |
289 | ||
290 | if (tb[NL80211_KEY_SEQ]) { | |
291 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
292 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
293 | } | |
294 | ||
295 | if (tb[NL80211_KEY_CIPHER]) | |
296 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
302 | { | |
303 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
304 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
305 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
306 | } | |
307 | ||
308 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
309 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
310 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
311 | } | |
312 | ||
313 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
314 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
315 | ||
316 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
317 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
318 | ||
319 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
320 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
321 | ||
322 | return 0; | |
323 | } | |
324 | ||
325 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
326 | { | |
327 | int err; | |
328 | ||
329 | memset(k, 0, sizeof(*k)); | |
330 | k->idx = -1; | |
331 | ||
332 | if (info->attrs[NL80211_ATTR_KEY]) | |
333 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
334 | else | |
335 | err = nl80211_parse_key_old(info, k); | |
336 | ||
337 | if (err) | |
338 | return err; | |
339 | ||
340 | if (k->def && k->defmgmt) | |
341 | return -EINVAL; | |
342 | ||
343 | if (k->idx != -1) { | |
344 | if (k->defmgmt) { | |
345 | if (k->idx < 4 || k->idx > 5) | |
346 | return -EINVAL; | |
347 | } else if (k->def) { | |
348 | if (k->idx < 0 || k->idx > 3) | |
349 | return -EINVAL; | |
350 | } else { | |
351 | if (k->idx < 0 || k->idx > 5) | |
352 | return -EINVAL; | |
353 | } | |
354 | } | |
355 | ||
356 | return 0; | |
357 | } | |
358 | ||
fffd0934 JB |
359 | static struct cfg80211_cached_keys * |
360 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
361 | struct nlattr *keys) | |
362 | { | |
363 | struct key_parse parse; | |
364 | struct nlattr *key; | |
365 | struct cfg80211_cached_keys *result; | |
366 | int rem, err, def = 0; | |
367 | ||
368 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
369 | if (!result) | |
370 | return ERR_PTR(-ENOMEM); | |
371 | ||
372 | result->def = -1; | |
373 | result->defmgmt = -1; | |
374 | ||
375 | nla_for_each_nested(key, keys, rem) { | |
376 | memset(&parse, 0, sizeof(parse)); | |
377 | parse.idx = -1; | |
378 | ||
379 | err = nl80211_parse_key_new(key, &parse); | |
380 | if (err) | |
381 | goto error; | |
382 | err = -EINVAL; | |
383 | if (!parse.p.key) | |
384 | goto error; | |
385 | if (parse.idx < 0 || parse.idx > 4) | |
386 | goto error; | |
387 | if (parse.def) { | |
388 | if (def) | |
389 | goto error; | |
390 | def = 1; | |
391 | result->def = parse.idx; | |
392 | } else if (parse.defmgmt) | |
393 | goto error; | |
394 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
395 | parse.idx, NULL); | |
396 | if (err) | |
397 | goto error; | |
398 | result->params[parse.idx].cipher = parse.p.cipher; | |
399 | result->params[parse.idx].key_len = parse.p.key_len; | |
400 | result->params[parse.idx].key = result->data[parse.idx]; | |
401 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
402 | } | |
403 | ||
404 | return result; | |
405 | error: | |
406 | kfree(result); | |
407 | return ERR_PTR(err); | |
408 | } | |
409 | ||
410 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
411 | { | |
412 | ASSERT_WDEV_LOCK(wdev); | |
413 | ||
fffd0934 JB |
414 | switch (wdev->iftype) { |
415 | case NL80211_IFTYPE_AP: | |
416 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 417 | case NL80211_IFTYPE_P2P_GO: |
fffd0934 JB |
418 | break; |
419 | case NL80211_IFTYPE_ADHOC: | |
420 | if (!wdev->current_bss) | |
421 | return -ENOLINK; | |
422 | break; | |
423 | case NL80211_IFTYPE_STATION: | |
074ac8df | 424 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
425 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
426 | return -ENOLINK; | |
427 | break; | |
428 | default: | |
429 | return -EINVAL; | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
55682965 JB |
435 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
436 | struct cfg80211_registered_device *dev) | |
437 | { | |
438 | void *hdr; | |
ee688b00 JB |
439 | struct nlattr *nl_bands, *nl_band; |
440 | struct nlattr *nl_freqs, *nl_freq; | |
441 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 442 | struct nlattr *nl_modes; |
8fdc621d | 443 | struct nlattr *nl_cmds; |
ee688b00 JB |
444 | enum ieee80211_band band; |
445 | struct ieee80211_channel *chan; | |
446 | struct ieee80211_rate *rate; | |
447 | int i; | |
f59ac048 | 448 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
449 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
450 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
451 | |
452 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
453 | if (!hdr) | |
454 | return -1; | |
455 | ||
b5850a7a | 456 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 457 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 458 | |
f5ea9120 JB |
459 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
460 | cfg80211_rdev_list_generation); | |
461 | ||
b9a5f8ca JM |
462 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
463 | dev->wiphy.retry_short); | |
464 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
465 | dev->wiphy.retry_long); | |
466 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
467 | dev->wiphy.frag_threshold); | |
468 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
469 | dev->wiphy.rts_threshold); | |
81077e82 LT |
470 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
471 | dev->wiphy.coverage_class); | |
b9a5f8ca | 472 | |
2a519311 JB |
473 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
474 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
475 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
476 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 477 | |
25e47c18 JB |
478 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
479 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
480 | dev->wiphy.cipher_suites); | |
481 | ||
67fbb16b SO |
482 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
483 | dev->wiphy.max_num_pmkids); | |
484 | ||
c0692b8f JB |
485 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
486 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
487 | ||
f59ac048 LR |
488 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
489 | if (!nl_modes) | |
490 | goto nla_put_failure; | |
491 | ||
492 | i = 0; | |
493 | while (ifmodes) { | |
494 | if (ifmodes & 1) | |
495 | NLA_PUT_FLAG(msg, i); | |
496 | ifmodes >>= 1; | |
497 | i++; | |
498 | } | |
499 | ||
500 | nla_nest_end(msg, nl_modes); | |
501 | ||
ee688b00 JB |
502 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
503 | if (!nl_bands) | |
504 | goto nla_put_failure; | |
505 | ||
506 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
507 | if (!dev->wiphy.bands[band]) | |
508 | continue; | |
509 | ||
510 | nl_band = nla_nest_start(msg, band); | |
511 | if (!nl_band) | |
512 | goto nla_put_failure; | |
513 | ||
d51626df JB |
514 | /* add HT info */ |
515 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
516 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
517 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
518 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
519 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
520 | dev->wiphy.bands[band]->ht_cap.cap); | |
521 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
522 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
523 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
524 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
525 | } | |
526 | ||
ee688b00 JB |
527 | /* add frequencies */ |
528 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
529 | if (!nl_freqs) | |
530 | goto nla_put_failure; | |
531 | ||
532 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
533 | nl_freq = nla_nest_start(msg, i); | |
534 | if (!nl_freq) | |
535 | goto nla_put_failure; | |
536 | ||
537 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
538 | |
539 | if (nl80211_msg_put_channel(msg, chan)) | |
540 | goto nla_put_failure; | |
e2f367f2 | 541 | |
ee688b00 JB |
542 | nla_nest_end(msg, nl_freq); |
543 | } | |
544 | ||
545 | nla_nest_end(msg, nl_freqs); | |
546 | ||
547 | /* add bitrates */ | |
548 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
549 | if (!nl_rates) | |
550 | goto nla_put_failure; | |
551 | ||
552 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
553 | nl_rate = nla_nest_start(msg, i); | |
554 | if (!nl_rate) | |
555 | goto nla_put_failure; | |
556 | ||
557 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
558 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
559 | rate->bitrate); | |
560 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
561 | NLA_PUT_FLAG(msg, | |
562 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
563 | ||
564 | nla_nest_end(msg, nl_rate); | |
565 | } | |
566 | ||
567 | nla_nest_end(msg, nl_rates); | |
568 | ||
569 | nla_nest_end(msg, nl_band); | |
570 | } | |
571 | nla_nest_end(msg, nl_bands); | |
572 | ||
8fdc621d JB |
573 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
574 | if (!nl_cmds) | |
575 | goto nla_put_failure; | |
576 | ||
577 | i = 0; | |
578 | #define CMD(op, n) \ | |
579 | do { \ | |
580 | if (dev->ops->op) { \ | |
581 | i++; \ | |
582 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
583 | } \ | |
584 | } while (0) | |
585 | ||
586 | CMD(add_virtual_intf, NEW_INTERFACE); | |
587 | CMD(change_virtual_intf, SET_INTERFACE); | |
588 | CMD(add_key, NEW_KEY); | |
589 | CMD(add_beacon, NEW_BEACON); | |
590 | CMD(add_station, NEW_STATION); | |
591 | CMD(add_mpath, NEW_MPATH); | |
592 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
593 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
594 | CMD(auth, AUTHENTICATE); |
595 | CMD(assoc, ASSOCIATE); | |
596 | CMD(deauth, DEAUTHENTICATE); | |
597 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 598 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
599 | CMD(set_pmksa, SET_PMKSA); |
600 | CMD(del_pmksa, DEL_PMKSA); | |
601 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 602 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 603 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 604 | CMD(mgmt_tx, FRAME); |
5be83de5 | 605 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
606 | i++; |
607 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
608 | } | |
f444de05 | 609 | CMD(set_channel, SET_CHANNEL); |
e8347eba | 610 | CMD(set_wds_peer, SET_WDS_PEER); |
8fdc621d JB |
611 | |
612 | #undef CMD | |
b23aa676 | 613 | |
6829c878 | 614 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
615 | i++; |
616 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
617 | } | |
618 | ||
6829c878 | 619 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
620 | i++; |
621 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
622 | } | |
623 | ||
8fdc621d JB |
624 | nla_nest_end(msg, nl_cmds); |
625 | ||
2e161f78 JB |
626 | if (mgmt_stypes) { |
627 | u16 stypes; | |
628 | struct nlattr *nl_ftypes, *nl_ifs; | |
629 | enum nl80211_iftype ift; | |
630 | ||
631 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
632 | if (!nl_ifs) | |
633 | goto nla_put_failure; | |
634 | ||
635 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
636 | nl_ftypes = nla_nest_start(msg, ift); | |
637 | if (!nl_ftypes) | |
638 | goto nla_put_failure; | |
639 | i = 0; | |
640 | stypes = mgmt_stypes[ift].tx; | |
641 | while (stypes) { | |
642 | if (stypes & 1) | |
643 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
644 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
645 | stypes >>= 1; | |
646 | i++; | |
647 | } | |
648 | nla_nest_end(msg, nl_ftypes); | |
649 | } | |
650 | ||
74b70a4e JB |
651 | nla_nest_end(msg, nl_ifs); |
652 | ||
2e161f78 JB |
653 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
654 | if (!nl_ifs) | |
655 | goto nla_put_failure; | |
656 | ||
657 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
658 | nl_ftypes = nla_nest_start(msg, ift); | |
659 | if (!nl_ftypes) | |
660 | goto nla_put_failure; | |
661 | i = 0; | |
662 | stypes = mgmt_stypes[ift].rx; | |
663 | while (stypes) { | |
664 | if (stypes & 1) | |
665 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
666 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
667 | stypes >>= 1; | |
668 | i++; | |
669 | } | |
670 | nla_nest_end(msg, nl_ftypes); | |
671 | } | |
672 | nla_nest_end(msg, nl_ifs); | |
673 | } | |
674 | ||
55682965 JB |
675 | return genlmsg_end(msg, hdr); |
676 | ||
677 | nla_put_failure: | |
bc3ed28c TG |
678 | genlmsg_cancel(msg, hdr); |
679 | return -EMSGSIZE; | |
55682965 JB |
680 | } |
681 | ||
682 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
683 | { | |
684 | int idx = 0; | |
685 | int start = cb->args[0]; | |
686 | struct cfg80211_registered_device *dev; | |
687 | ||
a1794390 | 688 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 689 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
690 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
691 | continue; | |
b4637271 | 692 | if (++idx <= start) |
55682965 JB |
693 | continue; |
694 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
695 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
696 | dev) < 0) { |
697 | idx--; | |
55682965 | 698 | break; |
b4637271 | 699 | } |
55682965 | 700 | } |
a1794390 | 701 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
702 | |
703 | cb->args[0] = idx; | |
704 | ||
705 | return skb->len; | |
706 | } | |
707 | ||
708 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
709 | { | |
710 | struct sk_buff *msg; | |
4c476991 | 711 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 712 | |
fd2120ca | 713 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 714 | if (!msg) |
4c476991 | 715 | return -ENOMEM; |
55682965 | 716 | |
4c476991 JB |
717 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
718 | nlmsg_free(msg); | |
719 | return -ENOBUFS; | |
720 | } | |
55682965 | 721 | |
134e6375 | 722 | return genlmsg_reply(msg, info); |
55682965 JB |
723 | } |
724 | ||
31888487 JM |
725 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
726 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
727 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
728 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
729 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
730 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
731 | }; | |
732 | ||
733 | static int parse_txq_params(struct nlattr *tb[], | |
734 | struct ieee80211_txq_params *txq_params) | |
735 | { | |
736 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
737 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
738 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
739 | return -EINVAL; | |
740 | ||
741 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
742 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
743 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
744 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
745 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
f444de05 JB |
750 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
751 | { | |
752 | /* | |
753 | * You can only set the channel explicitly for AP, mesh | |
754 | * and WDS type interfaces; all others have their channel | |
755 | * managed via their respective "establish a connection" | |
756 | * command (connect, join, ...) | |
757 | * | |
758 | * Monitors are special as they are normally slaved to | |
759 | * whatever else is going on, so they behave as though | |
760 | * you tried setting the wiphy channel itself. | |
761 | */ | |
762 | return !wdev || | |
763 | wdev->iftype == NL80211_IFTYPE_AP || | |
764 | wdev->iftype == NL80211_IFTYPE_WDS || | |
765 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
074ac8df JB |
766 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
767 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
768 | } |
769 | ||
770 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
771 | struct wireless_dev *wdev, | |
772 | struct genl_info *info) | |
773 | { | |
774 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
775 | u32 freq; | |
776 | int result; | |
777 | ||
778 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
779 | return -EINVAL; | |
780 | ||
781 | if (!nl80211_can_set_dev_channel(wdev)) | |
782 | return -EOPNOTSUPP; | |
783 | ||
784 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
785 | channel_type = nla_get_u32(info->attrs[ | |
786 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
787 | if (channel_type != NL80211_CHAN_NO_HT && | |
788 | channel_type != NL80211_CHAN_HT20 && | |
789 | channel_type != NL80211_CHAN_HT40PLUS && | |
790 | channel_type != NL80211_CHAN_HT40MINUS) | |
791 | return -EINVAL; | |
792 | } | |
793 | ||
794 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
795 | ||
796 | mutex_lock(&rdev->devlist_mtx); | |
797 | if (wdev) { | |
798 | wdev_lock(wdev); | |
799 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
800 | wdev_unlock(wdev); | |
801 | } else { | |
802 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
803 | } | |
804 | mutex_unlock(&rdev->devlist_mtx); | |
805 | ||
806 | return result; | |
807 | } | |
808 | ||
809 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
810 | { | |
4c476991 JB |
811 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
812 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 813 | |
4c476991 | 814 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
815 | } |
816 | ||
e8347eba BJ |
817 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
818 | { | |
819 | struct cfg80211_registered_device *rdev; | |
820 | struct wireless_dev *wdev; | |
821 | struct net_device *dev; | |
822 | u8 *bssid; | |
823 | int err; | |
824 | ||
825 | if (!info->attrs[NL80211_ATTR_MAC]) | |
826 | return -EINVAL; | |
827 | ||
828 | rtnl_lock(); | |
829 | ||
830 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
831 | if (err) | |
832 | goto unlock_rtnl; | |
833 | ||
834 | wdev = dev->ieee80211_ptr; | |
835 | ||
836 | if (netif_running(dev)) { | |
837 | err = -EBUSY; | |
838 | goto out; | |
839 | } | |
840 | ||
841 | if (!rdev->ops->set_wds_peer) { | |
842 | err = -EOPNOTSUPP; | |
843 | goto out; | |
844 | } | |
845 | ||
846 | if (wdev->iftype != NL80211_IFTYPE_WDS) { | |
847 | err = -EOPNOTSUPP; | |
848 | goto out; | |
849 | } | |
850 | ||
851 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
852 | err = rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); | |
853 | ||
854 | out: | |
855 | cfg80211_unlock_rdev(rdev); | |
856 | dev_put(dev); | |
857 | unlock_rtnl: | |
858 | rtnl_unlock(); | |
859 | ||
860 | return err; | |
861 | } | |
862 | ||
863 | ||
55682965 JB |
864 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
865 | { | |
866 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
867 | struct net_device *netdev = NULL; |
868 | struct wireless_dev *wdev; | |
a1e567c8 | 869 | int result = 0, rem_txq_params = 0; |
31888487 | 870 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
871 | u32 changed; |
872 | u8 retry_short = 0, retry_long = 0; | |
873 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 874 | u8 coverage_class = 0; |
55682965 | 875 | |
f444de05 JB |
876 | /* |
877 | * Try to find the wiphy and netdev. Normally this | |
878 | * function shouldn't need the netdev, but this is | |
879 | * done for backward compatibility -- previously | |
880 | * setting the channel was done per wiphy, but now | |
881 | * it is per netdev. Previous userland like hostapd | |
882 | * also passed a netdev to set_wiphy, so that it is | |
883 | * possible to let that go to the right netdev! | |
884 | */ | |
4bbf4d56 JB |
885 | mutex_lock(&cfg80211_mutex); |
886 | ||
f444de05 JB |
887 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
888 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
889 | ||
890 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
891 | if (netdev && netdev->ieee80211_ptr) { | |
892 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
893 | mutex_lock(&rdev->mtx); | |
894 | } else | |
895 | netdev = NULL; | |
4bbf4d56 JB |
896 | } |
897 | ||
f444de05 JB |
898 | if (!netdev) { |
899 | rdev = __cfg80211_rdev_from_info(info); | |
900 | if (IS_ERR(rdev)) { | |
901 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 902 | return PTR_ERR(rdev); |
f444de05 JB |
903 | } |
904 | wdev = NULL; | |
905 | netdev = NULL; | |
906 | result = 0; | |
907 | ||
908 | mutex_lock(&rdev->mtx); | |
909 | } else if (netif_running(netdev) && | |
910 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
911 | wdev = netdev->ieee80211_ptr; | |
912 | else | |
913 | wdev = NULL; | |
914 | ||
915 | /* | |
916 | * end workaround code, by now the rdev is available | |
917 | * and locked, and wdev may or may not be NULL. | |
918 | */ | |
4bbf4d56 JB |
919 | |
920 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
921 | result = cfg80211_dev_rename( |
922 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
923 | |
924 | mutex_unlock(&cfg80211_mutex); | |
925 | ||
926 | if (result) | |
927 | goto bad_res; | |
31888487 JM |
928 | |
929 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
930 | struct ieee80211_txq_params txq_params; | |
931 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
932 | ||
933 | if (!rdev->ops->set_txq_params) { | |
934 | result = -EOPNOTSUPP; | |
935 | goto bad_res; | |
936 | } | |
937 | ||
938 | nla_for_each_nested(nl_txq_params, | |
939 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
940 | rem_txq_params) { | |
941 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
942 | nla_data(nl_txq_params), | |
943 | nla_len(nl_txq_params), | |
944 | txq_params_policy); | |
945 | result = parse_txq_params(tb, &txq_params); | |
946 | if (result) | |
947 | goto bad_res; | |
948 | ||
949 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
950 | &txq_params); | |
951 | if (result) | |
952 | goto bad_res; | |
953 | } | |
954 | } | |
55682965 | 955 | |
72bdcf34 | 956 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 957 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
958 | if (result) |
959 | goto bad_res; | |
960 | } | |
961 | ||
98d2ff8b JO |
962 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
963 | enum nl80211_tx_power_setting type; | |
964 | int idx, mbm = 0; | |
965 | ||
966 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 967 | result = -EOPNOTSUPP; |
98d2ff8b JO |
968 | goto bad_res; |
969 | } | |
970 | ||
971 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
972 | type = nla_get_u32(info->attrs[idx]); | |
973 | ||
974 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
975 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
976 | result = -EINVAL; | |
977 | goto bad_res; | |
978 | } | |
979 | ||
980 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
981 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
982 | mbm = nla_get_u32(info->attrs[idx]); | |
983 | } | |
984 | ||
985 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
986 | if (result) | |
987 | goto bad_res; | |
988 | } | |
989 | ||
b9a5f8ca JM |
990 | changed = 0; |
991 | ||
992 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
993 | retry_short = nla_get_u8( | |
994 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
995 | if (retry_short == 0) { | |
996 | result = -EINVAL; | |
997 | goto bad_res; | |
998 | } | |
999 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1000 | } | |
1001 | ||
1002 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1003 | retry_long = nla_get_u8( | |
1004 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1005 | if (retry_long == 0) { | |
1006 | result = -EINVAL; | |
1007 | goto bad_res; | |
1008 | } | |
1009 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1010 | } | |
1011 | ||
1012 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1013 | frag_threshold = nla_get_u32( | |
1014 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1015 | if (frag_threshold < 256) { | |
1016 | result = -EINVAL; | |
1017 | goto bad_res; | |
1018 | } | |
1019 | if (frag_threshold != (u32) -1) { | |
1020 | /* | |
1021 | * Fragments (apart from the last one) are required to | |
1022 | * have even length. Make the fragmentation code | |
1023 | * simpler by stripping LSB should someone try to use | |
1024 | * odd threshold value. | |
1025 | */ | |
1026 | frag_threshold &= ~0x1; | |
1027 | } | |
1028 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1029 | } | |
1030 | ||
1031 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1032 | rts_threshold = nla_get_u32( | |
1033 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1034 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1035 | } | |
1036 | ||
81077e82 LT |
1037 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1038 | coverage_class = nla_get_u8( | |
1039 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1040 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1041 | } | |
1042 | ||
b9a5f8ca JM |
1043 | if (changed) { |
1044 | u8 old_retry_short, old_retry_long; | |
1045 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1046 | u8 old_coverage_class; |
b9a5f8ca JM |
1047 | |
1048 | if (!rdev->ops->set_wiphy_params) { | |
1049 | result = -EOPNOTSUPP; | |
1050 | goto bad_res; | |
1051 | } | |
1052 | ||
1053 | old_retry_short = rdev->wiphy.retry_short; | |
1054 | old_retry_long = rdev->wiphy.retry_long; | |
1055 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1056 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1057 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1058 | |
1059 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1060 | rdev->wiphy.retry_short = retry_short; | |
1061 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1062 | rdev->wiphy.retry_long = retry_long; | |
1063 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1064 | rdev->wiphy.frag_threshold = frag_threshold; | |
1065 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1066 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1067 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1068 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1069 | |
1070 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1071 | if (result) { | |
1072 | rdev->wiphy.retry_short = old_retry_short; | |
1073 | rdev->wiphy.retry_long = old_retry_long; | |
1074 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1075 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1076 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1077 | } |
1078 | } | |
72bdcf34 | 1079 | |
306d6112 | 1080 | bad_res: |
4bbf4d56 | 1081 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1082 | if (netdev) |
1083 | dev_put(netdev); | |
55682965 JB |
1084 | return result; |
1085 | } | |
1086 | ||
1087 | ||
1088 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1089 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1090 | struct net_device *dev) |
1091 | { | |
1092 | void *hdr; | |
1093 | ||
1094 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1095 | if (!hdr) | |
1096 | return -1; | |
1097 | ||
1098 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1099 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1100 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1101 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1102 | |
1103 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1104 | rdev->devlist_generation ^ | |
1105 | (cfg80211_rdev_list_generation << 2)); | |
1106 | ||
55682965 JB |
1107 | return genlmsg_end(msg, hdr); |
1108 | ||
1109 | nla_put_failure: | |
bc3ed28c TG |
1110 | genlmsg_cancel(msg, hdr); |
1111 | return -EMSGSIZE; | |
55682965 JB |
1112 | } |
1113 | ||
1114 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1115 | { | |
1116 | int wp_idx = 0; | |
1117 | int if_idx = 0; | |
1118 | int wp_start = cb->args[0]; | |
1119 | int if_start = cb->args[1]; | |
f5ea9120 | 1120 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1121 | struct wireless_dev *wdev; |
1122 | ||
a1794390 | 1123 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1124 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1125 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1126 | continue; |
bba95fef JB |
1127 | if (wp_idx < wp_start) { |
1128 | wp_idx++; | |
55682965 | 1129 | continue; |
bba95fef | 1130 | } |
55682965 JB |
1131 | if_idx = 0; |
1132 | ||
f5ea9120 JB |
1133 | mutex_lock(&rdev->devlist_mtx); |
1134 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1135 | if (if_idx < if_start) { |
1136 | if_idx++; | |
55682965 | 1137 | continue; |
bba95fef | 1138 | } |
55682965 JB |
1139 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1140 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1141 | rdev, wdev->netdev) < 0) { |
1142 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1143 | goto out; |
1144 | } | |
1145 | if_idx++; | |
55682965 | 1146 | } |
f5ea9120 | 1147 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1148 | |
1149 | wp_idx++; | |
55682965 | 1150 | } |
bba95fef | 1151 | out: |
a1794390 | 1152 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1153 | |
1154 | cb->args[0] = wp_idx; | |
1155 | cb->args[1] = if_idx; | |
1156 | ||
1157 | return skb->len; | |
1158 | } | |
1159 | ||
1160 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1161 | { | |
1162 | struct sk_buff *msg; | |
4c476991 JB |
1163 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1164 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1165 | |
fd2120ca | 1166 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1167 | if (!msg) |
4c476991 | 1168 | return -ENOMEM; |
55682965 | 1169 | |
d726405a | 1170 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1171 | dev, netdev) < 0) { |
1172 | nlmsg_free(msg); | |
1173 | return -ENOBUFS; | |
1174 | } | |
55682965 | 1175 | |
134e6375 | 1176 | return genlmsg_reply(msg, info); |
55682965 JB |
1177 | } |
1178 | ||
66f7ac50 MW |
1179 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1180 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1181 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1182 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1183 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1184 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1185 | }; | |
1186 | ||
1187 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1188 | { | |
1189 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1190 | int flag; | |
1191 | ||
1192 | *mntrflags = 0; | |
1193 | ||
1194 | if (!nla) | |
1195 | return -EINVAL; | |
1196 | ||
1197 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1198 | nla, mntr_flags_policy)) | |
1199 | return -EINVAL; | |
1200 | ||
1201 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1202 | if (flags[flag]) | |
1203 | *mntrflags |= (1<<flag); | |
1204 | ||
1205 | return 0; | |
1206 | } | |
1207 | ||
9bc383de | 1208 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1209 | struct net_device *netdev, u8 use_4addr, |
1210 | enum nl80211_iftype iftype) | |
9bc383de | 1211 | { |
ad4bb6f8 | 1212 | if (!use_4addr) { |
f350a0a8 | 1213 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1214 | return -EBUSY; |
9bc383de | 1215 | return 0; |
ad4bb6f8 | 1216 | } |
9bc383de JB |
1217 | |
1218 | switch (iftype) { | |
1219 | case NL80211_IFTYPE_AP_VLAN: | |
1220 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1221 | return 0; | |
1222 | break; | |
1223 | case NL80211_IFTYPE_STATION: | |
1224 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1225 | return 0; | |
1226 | break; | |
1227 | default: | |
1228 | break; | |
1229 | } | |
1230 | ||
1231 | return -EOPNOTSUPP; | |
1232 | } | |
1233 | ||
55682965 JB |
1234 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1235 | { | |
4c476991 | 1236 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1237 | struct vif_params params; |
e36d56b6 | 1238 | int err; |
04a773ad | 1239 | enum nl80211_iftype otype, ntype; |
4c476991 | 1240 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1241 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1242 | bool change = false; |
55682965 | 1243 | |
2ec600d6 LCC |
1244 | memset(¶ms, 0, sizeof(params)); |
1245 | ||
04a773ad | 1246 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1247 | |
723b038d | 1248 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1249 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1250 | if (otype != ntype) |
ac7f9cfa | 1251 | change = true; |
4c476991 JB |
1252 | if (ntype > NL80211_IFTYPE_MAX) |
1253 | return -EINVAL; | |
723b038d JB |
1254 | } |
1255 | ||
92ffe055 | 1256 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
4c476991 JB |
1257 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1258 | return -EINVAL; | |
2ec600d6 LCC |
1259 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1260 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1261 | change = true; |
2ec600d6 LCC |
1262 | } |
1263 | ||
8b787643 FF |
1264 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1265 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1266 | change = true; | |
ad4bb6f8 | 1267 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1268 | if (err) |
4c476991 | 1269 | return err; |
8b787643 FF |
1270 | } else { |
1271 | params.use_4addr = -1; | |
1272 | } | |
1273 | ||
92ffe055 | 1274 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1275 | if (ntype != NL80211_IFTYPE_MONITOR) |
1276 | return -EINVAL; | |
92ffe055 JB |
1277 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1278 | &_flags); | |
ac7f9cfa | 1279 | if (err) |
4c476991 | 1280 | return err; |
ac7f9cfa JB |
1281 | |
1282 | flags = &_flags; | |
1283 | change = true; | |
92ffe055 | 1284 | } |
3b85875a | 1285 | |
ac7f9cfa | 1286 | if (change) |
3d54d255 | 1287 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1288 | else |
1289 | err = 0; | |
60719ffd | 1290 | |
9bc383de JB |
1291 | if (!err && params.use_4addr != -1) |
1292 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1293 | ||
55682965 JB |
1294 | return err; |
1295 | } | |
1296 | ||
1297 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1298 | { | |
4c476991 | 1299 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1300 | struct vif_params params; |
55682965 JB |
1301 | int err; |
1302 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1303 | u32 flags; |
55682965 | 1304 | |
2ec600d6 LCC |
1305 | memset(¶ms, 0, sizeof(params)); |
1306 | ||
55682965 JB |
1307 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1308 | return -EINVAL; | |
1309 | ||
1310 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1311 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1312 | if (type > NL80211_IFTYPE_MAX) | |
1313 | return -EINVAL; | |
1314 | } | |
1315 | ||
79c97e97 | 1316 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1317 | !(rdev->wiphy.interface_modes & (1 << type))) |
1318 | return -EOPNOTSUPP; | |
55682965 | 1319 | |
2ec600d6 LCC |
1320 | if (type == NL80211_IFTYPE_MESH_POINT && |
1321 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1322 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1323 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1324 | } | |
1325 | ||
9bc383de | 1326 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1327 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1328 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1329 | if (err) |
4c476991 | 1330 | return err; |
9bc383de | 1331 | } |
8b787643 | 1332 | |
66f7ac50 MW |
1333 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1334 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1335 | &flags); | |
79c97e97 | 1336 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1337 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1338 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1339 | |
55682965 JB |
1340 | return err; |
1341 | } | |
1342 | ||
1343 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1344 | { | |
4c476991 JB |
1345 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1346 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1347 | |
4c476991 JB |
1348 | if (!rdev->ops->del_virtual_intf) |
1349 | return -EOPNOTSUPP; | |
55682965 | 1350 | |
4c476991 | 1351 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1352 | } |
1353 | ||
41ade00f JB |
1354 | struct get_key_cookie { |
1355 | struct sk_buff *msg; | |
1356 | int error; | |
b9454e83 | 1357 | int idx; |
41ade00f JB |
1358 | }; |
1359 | ||
1360 | static void get_key_callback(void *c, struct key_params *params) | |
1361 | { | |
b9454e83 | 1362 | struct nlattr *key; |
41ade00f JB |
1363 | struct get_key_cookie *cookie = c; |
1364 | ||
1365 | if (params->key) | |
1366 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1367 | params->key_len, params->key); | |
1368 | ||
1369 | if (params->seq) | |
1370 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1371 | params->seq_len, params->seq); | |
1372 | ||
1373 | if (params->cipher) | |
1374 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1375 | params->cipher); | |
1376 | ||
b9454e83 JB |
1377 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1378 | if (!key) | |
1379 | goto nla_put_failure; | |
1380 | ||
1381 | if (params->key) | |
1382 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1383 | params->key_len, params->key); | |
1384 | ||
1385 | if (params->seq) | |
1386 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1387 | params->seq_len, params->seq); | |
1388 | ||
1389 | if (params->cipher) | |
1390 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1391 | params->cipher); | |
1392 | ||
1393 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1394 | ||
1395 | nla_nest_end(cookie->msg, key); | |
1396 | ||
41ade00f JB |
1397 | return; |
1398 | nla_put_failure: | |
1399 | cookie->error = 1; | |
1400 | } | |
1401 | ||
1402 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1403 | { | |
4c476991 | 1404 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1405 | int err; |
4c476991 | 1406 | struct net_device *dev = info->user_ptr[1]; |
41ade00f JB |
1407 | u8 key_idx = 0; |
1408 | u8 *mac_addr = NULL; | |
1409 | struct get_key_cookie cookie = { | |
1410 | .error = 0, | |
1411 | }; | |
1412 | void *hdr; | |
1413 | struct sk_buff *msg; | |
1414 | ||
1415 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1416 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1417 | ||
3cfcf6ac | 1418 | if (key_idx > 5) |
41ade00f JB |
1419 | return -EINVAL; |
1420 | ||
1421 | if (info->attrs[NL80211_ATTR_MAC]) | |
1422 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1423 | ||
4c476991 JB |
1424 | if (!rdev->ops->get_key) |
1425 | return -EOPNOTSUPP; | |
41ade00f | 1426 | |
fd2120ca | 1427 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1428 | if (!msg) |
1429 | return -ENOMEM; | |
41ade00f JB |
1430 | |
1431 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1432 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1433 | if (IS_ERR(hdr)) |
1434 | return PTR_ERR(hdr); | |
41ade00f JB |
1435 | |
1436 | cookie.msg = msg; | |
b9454e83 | 1437 | cookie.idx = key_idx; |
41ade00f JB |
1438 | |
1439 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1440 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1441 | if (mac_addr) | |
1442 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1443 | ||
79c97e97 | 1444 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, mac_addr, |
41ade00f | 1445 | &cookie, get_key_callback); |
41ade00f JB |
1446 | |
1447 | if (err) | |
6c95e2a2 | 1448 | goto free_msg; |
41ade00f JB |
1449 | |
1450 | if (cookie.error) | |
1451 | goto nla_put_failure; | |
1452 | ||
1453 | genlmsg_end(msg, hdr); | |
4c476991 | 1454 | return genlmsg_reply(msg, info); |
41ade00f JB |
1455 | |
1456 | nla_put_failure: | |
1457 | err = -ENOBUFS; | |
6c95e2a2 | 1458 | free_msg: |
41ade00f | 1459 | nlmsg_free(msg); |
41ade00f JB |
1460 | return err; |
1461 | } | |
1462 | ||
1463 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1464 | { | |
4c476991 | 1465 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 1466 | struct key_parse key; |
41ade00f | 1467 | int err; |
4c476991 | 1468 | struct net_device *dev = info->user_ptr[1]; |
3cfcf6ac JM |
1469 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1470 | u8 key_index); | |
41ade00f | 1471 | |
b9454e83 JB |
1472 | err = nl80211_parse_key(info, &key); |
1473 | if (err) | |
1474 | return err; | |
41ade00f | 1475 | |
b9454e83 | 1476 | if (key.idx < 0) |
41ade00f JB |
1477 | return -EINVAL; |
1478 | ||
b9454e83 JB |
1479 | /* only support setting default key */ |
1480 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1481 | return -EINVAL; |
1482 | ||
b9454e83 | 1483 | if (key.def) |
79c97e97 | 1484 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1485 | else |
79c97e97 | 1486 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac | 1487 | |
4c476991 JB |
1488 | if (!func) |
1489 | return -EOPNOTSUPP; | |
41ade00f | 1490 | |
fffd0934 JB |
1491 | wdev_lock(dev->ieee80211_ptr); |
1492 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1493 | if (!err) | |
1494 | err = func(&rdev->wiphy, dev, key.idx); | |
1495 | ||
3d23e349 | 1496 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1497 | if (!err) { |
79c97e97 | 1498 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1499 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1500 | else |
b9454e83 | 1501 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1502 | } |
1503 | #endif | |
fffd0934 | 1504 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 1505 | |
41ade00f JB |
1506 | return err; |
1507 | } | |
1508 | ||
1509 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1510 | { | |
4c476991 | 1511 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 1512 | int err; |
4c476991 | 1513 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 1514 | struct key_parse key; |
41ade00f JB |
1515 | u8 *mac_addr = NULL; |
1516 | ||
b9454e83 JB |
1517 | err = nl80211_parse_key(info, &key); |
1518 | if (err) | |
1519 | return err; | |
41ade00f | 1520 | |
b9454e83 | 1521 | if (!key.p.key) |
41ade00f JB |
1522 | return -EINVAL; |
1523 | ||
41ade00f JB |
1524 | if (info->attrs[NL80211_ATTR_MAC]) |
1525 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1526 | ||
4c476991 JB |
1527 | if (!rdev->ops->add_key) |
1528 | return -EOPNOTSUPP; | |
25e47c18 | 1529 | |
4c476991 JB |
1530 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, mac_addr)) |
1531 | return -EINVAL; | |
41ade00f | 1532 | |
fffd0934 JB |
1533 | wdev_lock(dev->ieee80211_ptr); |
1534 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1535 | if (!err) | |
1536 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
1537 | mac_addr, &key.p); | |
1538 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 1539 | |
41ade00f JB |
1540 | return err; |
1541 | } | |
1542 | ||
1543 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1544 | { | |
4c476991 | 1545 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1546 | int err; |
4c476991 | 1547 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1548 | u8 *mac_addr = NULL; |
b9454e83 | 1549 | struct key_parse key; |
41ade00f | 1550 | |
b9454e83 JB |
1551 | err = nl80211_parse_key(info, &key); |
1552 | if (err) | |
1553 | return err; | |
41ade00f JB |
1554 | |
1555 | if (info->attrs[NL80211_ATTR_MAC]) | |
1556 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1557 | ||
4c476991 JB |
1558 | if (!rdev->ops->del_key) |
1559 | return -EOPNOTSUPP; | |
41ade00f | 1560 | |
fffd0934 JB |
1561 | wdev_lock(dev->ieee80211_ptr); |
1562 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1563 | if (!err) | |
1564 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, mac_addr); | |
41ade00f | 1565 | |
3d23e349 | 1566 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1567 | if (!err) { |
b9454e83 | 1568 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1569 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1570 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1571 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1572 | } | |
1573 | #endif | |
fffd0934 | 1574 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1575 | |
41ade00f JB |
1576 | return err; |
1577 | } | |
1578 | ||
ed1b6cc7 JB |
1579 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1580 | { | |
1581 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1582 | struct beacon_parameters *info); | |
4c476991 JB |
1583 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1584 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 JB |
1585 | struct beacon_parameters params; |
1586 | int haveinfo = 0; | |
1587 | ||
f4a11bb0 JB |
1588 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1589 | return -EINVAL; | |
1590 | ||
074ac8df | 1591 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1592 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1593 | return -EOPNOTSUPP; | |
eec60b03 | 1594 | |
ed1b6cc7 JB |
1595 | switch (info->genlhdr->cmd) { |
1596 | case NL80211_CMD_NEW_BEACON: | |
1597 | /* these are required for NEW_BEACON */ | |
1598 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1599 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
4c476991 JB |
1600 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
1601 | return -EINVAL; | |
ed1b6cc7 | 1602 | |
79c97e97 | 1603 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1604 | break; |
1605 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1606 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1607 | break; |
1608 | default: | |
1609 | WARN_ON(1); | |
4c476991 | 1610 | return -EOPNOTSUPP; |
ed1b6cc7 JB |
1611 | } |
1612 | ||
4c476991 JB |
1613 | if (!call) |
1614 | return -EOPNOTSUPP; | |
ed1b6cc7 JB |
1615 | |
1616 | memset(¶ms, 0, sizeof(params)); | |
1617 | ||
1618 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1619 | params.interval = | |
1620 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1621 | haveinfo = 1; | |
1622 | } | |
1623 | ||
1624 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1625 | params.dtim_period = | |
1626 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1627 | haveinfo = 1; | |
1628 | } | |
1629 | ||
1630 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1631 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1632 | params.head_len = | |
1633 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1634 | haveinfo = 1; | |
1635 | } | |
1636 | ||
1637 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1638 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1639 | params.tail_len = | |
1640 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1641 | haveinfo = 1; | |
1642 | } | |
1643 | ||
4c476991 JB |
1644 | if (!haveinfo) |
1645 | return -EINVAL; | |
3b85875a | 1646 | |
4c476991 | 1647 | return call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1648 | } |
1649 | ||
1650 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1651 | { | |
4c476991 JB |
1652 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1653 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 1654 | |
4c476991 JB |
1655 | if (!rdev->ops->del_beacon) |
1656 | return -EOPNOTSUPP; | |
ed1b6cc7 | 1657 | |
074ac8df | 1658 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1659 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1660 | return -EOPNOTSUPP; | |
3b85875a | 1661 | |
4c476991 | 1662 | return rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1663 | } |
1664 | ||
5727ef1b JB |
1665 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1666 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1667 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1668 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1669 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1670 | }; |
1671 | ||
eccb8e8f JB |
1672 | static int parse_station_flags(struct genl_info *info, |
1673 | struct station_parameters *params) | |
5727ef1b JB |
1674 | { |
1675 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1676 | struct nlattr *nla; |
5727ef1b JB |
1677 | int flag; |
1678 | ||
eccb8e8f JB |
1679 | /* |
1680 | * Try parsing the new attribute first so userspace | |
1681 | * can specify both for older kernels. | |
1682 | */ | |
1683 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1684 | if (nla) { | |
1685 | struct nl80211_sta_flag_update *sta_flags; | |
1686 | ||
1687 | sta_flags = nla_data(nla); | |
1688 | params->sta_flags_mask = sta_flags->mask; | |
1689 | params->sta_flags_set = sta_flags->set; | |
1690 | if ((params->sta_flags_mask | | |
1691 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1692 | return -EINVAL; | |
1693 | return 0; | |
1694 | } | |
1695 | ||
1696 | /* if present, parse the old attribute */ | |
5727ef1b | 1697 | |
eccb8e8f | 1698 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1699 | if (!nla) |
1700 | return 0; | |
1701 | ||
1702 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1703 | nla, sta_flags_policy)) | |
1704 | return -EINVAL; | |
1705 | ||
eccb8e8f JB |
1706 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1707 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1708 | |
1709 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1710 | if (flags[flag]) | |
eccb8e8f | 1711 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1712 | |
1713 | return 0; | |
1714 | } | |
1715 | ||
fd5b74dc JB |
1716 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1717 | int flags, struct net_device *dev, | |
98b62183 | 1718 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1719 | { |
1720 | void *hdr; | |
420e7fab HR |
1721 | struct nlattr *sinfoattr, *txrate; |
1722 | u16 bitrate; | |
fd5b74dc JB |
1723 | |
1724 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1725 | if (!hdr) | |
1726 | return -1; | |
1727 | ||
1728 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1729 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1730 | ||
f5ea9120 JB |
1731 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1732 | ||
2ec600d6 LCC |
1733 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1734 | if (!sinfoattr) | |
fd5b74dc | 1735 | goto nla_put_failure; |
2ec600d6 LCC |
1736 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1737 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1738 | sinfo->inactive_time); | |
1739 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1740 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1741 | sinfo->rx_bytes); | |
1742 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1743 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1744 | sinfo->tx_bytes); | |
1745 | if (sinfo->filled & STATION_INFO_LLID) | |
1746 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1747 | sinfo->llid); | |
1748 | if (sinfo->filled & STATION_INFO_PLID) | |
1749 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1750 | sinfo->plid); | |
1751 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1752 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1753 | sinfo->plink_state); | |
420e7fab HR |
1754 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1755 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1756 | sinfo->signal); | |
1757 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1758 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1759 | if (!txrate) | |
1760 | goto nla_put_failure; | |
1761 | ||
254416aa JL |
1762 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1763 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1764 | if (bitrate > 0) |
1765 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1766 | |
420e7fab HR |
1767 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1768 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1769 | sinfo->txrate.mcs); | |
1770 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1771 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1772 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1773 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1774 | ||
1775 | nla_nest_end(msg, txrate); | |
1776 | } | |
98c8a60a JM |
1777 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1778 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1779 | sinfo->rx_packets); | |
1780 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1781 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1782 | sinfo->tx_packets); | |
2ec600d6 | 1783 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1784 | |
1785 | return genlmsg_end(msg, hdr); | |
1786 | ||
1787 | nla_put_failure: | |
bc3ed28c TG |
1788 | genlmsg_cancel(msg, hdr); |
1789 | return -EMSGSIZE; | |
fd5b74dc JB |
1790 | } |
1791 | ||
2ec600d6 | 1792 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1793 | struct netlink_callback *cb) |
2ec600d6 | 1794 | { |
2ec600d6 LCC |
1795 | struct station_info sinfo; |
1796 | struct cfg80211_registered_device *dev; | |
bba95fef | 1797 | struct net_device *netdev; |
2ec600d6 | 1798 | u8 mac_addr[ETH_ALEN]; |
bba95fef JB |
1799 | int ifidx = cb->args[0]; |
1800 | int sta_idx = cb->args[1]; | |
2ec600d6 | 1801 | int err; |
2ec600d6 | 1802 | |
a043897a HS |
1803 | if (!ifidx) |
1804 | ifidx = nl80211_get_ifidx(cb); | |
1805 | if (ifidx < 0) | |
1806 | return ifidx; | |
2ec600d6 | 1807 | |
3b85875a JB |
1808 | rtnl_lock(); |
1809 | ||
463d0183 | 1810 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
1811 | if (!netdev) { |
1812 | err = -ENODEV; | |
1813 | goto out_rtnl; | |
1814 | } | |
2ec600d6 | 1815 | |
463d0183 | 1816 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
1817 | if (IS_ERR(dev)) { |
1818 | err = PTR_ERR(dev); | |
3b85875a | 1819 | goto out_rtnl; |
bba95fef JB |
1820 | } |
1821 | ||
1822 | if (!dev->ops->dump_station) { | |
eec60b03 | 1823 | err = -EOPNOTSUPP; |
bba95fef JB |
1824 | goto out_err; |
1825 | } | |
1826 | ||
bba95fef JB |
1827 | while (1) { |
1828 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1829 | mac_addr, &sinfo); | |
1830 | if (err == -ENOENT) | |
1831 | break; | |
1832 | if (err) | |
3b85875a | 1833 | goto out_err; |
bba95fef JB |
1834 | |
1835 | if (nl80211_send_station(skb, | |
1836 | NETLINK_CB(cb->skb).pid, | |
1837 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1838 | netdev, mac_addr, | |
1839 | &sinfo) < 0) | |
1840 | goto out; | |
1841 | ||
1842 | sta_idx++; | |
1843 | } | |
1844 | ||
1845 | ||
1846 | out: | |
1847 | cb->args[1] = sta_idx; | |
1848 | err = skb->len; | |
bba95fef | 1849 | out_err: |
4d0c8aea | 1850 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
1851 | out_rtnl: |
1852 | rtnl_unlock(); | |
bba95fef JB |
1853 | |
1854 | return err; | |
2ec600d6 | 1855 | } |
fd5b74dc | 1856 | |
5727ef1b JB |
1857 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1858 | { | |
4c476991 JB |
1859 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1860 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 1861 | struct station_info sinfo; |
fd5b74dc JB |
1862 | struct sk_buff *msg; |
1863 | u8 *mac_addr = NULL; | |
4c476991 | 1864 | int err; |
fd5b74dc | 1865 | |
2ec600d6 | 1866 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1867 | |
1868 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1869 | return -EINVAL; | |
1870 | ||
1871 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1872 | ||
4c476991 JB |
1873 | if (!rdev->ops->get_station) |
1874 | return -EOPNOTSUPP; | |
3b85875a | 1875 | |
4c476991 | 1876 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 1877 | if (err) |
4c476991 | 1878 | return err; |
2ec600d6 | 1879 | |
fd2120ca | 1880 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 1881 | if (!msg) |
4c476991 | 1882 | return -ENOMEM; |
fd5b74dc JB |
1883 | |
1884 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
1885 | dev, mac_addr, &sinfo) < 0) { |
1886 | nlmsg_free(msg); | |
1887 | return -ENOBUFS; | |
1888 | } | |
3b85875a | 1889 | |
4c476991 | 1890 | return genlmsg_reply(msg, info); |
5727ef1b JB |
1891 | } |
1892 | ||
1893 | /* | |
c258d2de | 1894 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 1895 | */ |
463d0183 | 1896 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
1897 | struct cfg80211_registered_device *rdev, |
1898 | struct net_device **vlan) | |
1899 | { | |
463d0183 | 1900 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
1901 | *vlan = NULL; |
1902 | ||
1903 | if (vlanattr) { | |
463d0183 JB |
1904 | *vlan = dev_get_by_index(genl_info_net(info), |
1905 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
1906 | if (!*vlan) |
1907 | return -ENODEV; | |
1908 | if (!(*vlan)->ieee80211_ptr) | |
1909 | return -EINVAL; | |
1910 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
1911 | return -EINVAL; | |
c258d2de FF |
1912 | if (!netif_running(*vlan)) |
1913 | return -ENETDOWN; | |
5727ef1b JB |
1914 | } |
1915 | return 0; | |
1916 | } | |
1917 | ||
1918 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
1919 | { | |
4c476991 | 1920 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 1921 | int err; |
4c476991 | 1922 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
1923 | struct station_parameters params; |
1924 | u8 *mac_addr = NULL; | |
1925 | ||
1926 | memset(¶ms, 0, sizeof(params)); | |
1927 | ||
1928 | params.listen_interval = -1; | |
1929 | ||
1930 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
1931 | return -EINVAL; | |
1932 | ||
1933 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1934 | return -EINVAL; | |
1935 | ||
1936 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1937 | ||
1938 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
1939 | params.supported_rates = | |
1940 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1941 | params.supported_rates_len = | |
1942 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
1943 | } | |
1944 | ||
1945 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
1946 | params.listen_interval = | |
1947 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
1948 | ||
36aedc90 JM |
1949 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
1950 | params.ht_capa = | |
1951 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
1952 | ||
eccb8e8f | 1953 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
1954 | return -EINVAL; |
1955 | ||
2ec600d6 LCC |
1956 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
1957 | params.plink_action = | |
1958 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
1959 | ||
463d0183 | 1960 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 1961 | if (err) |
034d655e | 1962 | goto out; |
a97f4424 JB |
1963 | |
1964 | /* validate settings */ | |
1965 | err = 0; | |
1966 | ||
1967 | switch (dev->ieee80211_ptr->iftype) { | |
1968 | case NL80211_IFTYPE_AP: | |
1969 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 1970 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
1971 | /* disallow mesh-specific things */ |
1972 | if (params.plink_action) | |
1973 | err = -EINVAL; | |
1974 | break; | |
074ac8df | 1975 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 JB |
1976 | case NL80211_IFTYPE_STATION: |
1977 | /* disallow everything but AUTHORIZED flag */ | |
1978 | if (params.plink_action) | |
1979 | err = -EINVAL; | |
1980 | if (params.vlan) | |
1981 | err = -EINVAL; | |
1982 | if (params.supported_rates) | |
1983 | err = -EINVAL; | |
1984 | if (params.ht_capa) | |
1985 | err = -EINVAL; | |
1986 | if (params.listen_interval >= 0) | |
1987 | err = -EINVAL; | |
1988 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
1989 | err = -EINVAL; | |
1990 | break; | |
1991 | case NL80211_IFTYPE_MESH_POINT: | |
1992 | /* disallow things mesh doesn't support */ | |
1993 | if (params.vlan) | |
1994 | err = -EINVAL; | |
1995 | if (params.ht_capa) | |
1996 | err = -EINVAL; | |
1997 | if (params.listen_interval >= 0) | |
1998 | err = -EINVAL; | |
1999 | if (params.supported_rates) | |
2000 | err = -EINVAL; | |
2001 | if (params.sta_flags_mask) | |
2002 | err = -EINVAL; | |
2003 | break; | |
2004 | default: | |
2005 | err = -EINVAL; | |
034d655e JB |
2006 | } |
2007 | ||
5727ef1b JB |
2008 | if (err) |
2009 | goto out; | |
2010 | ||
79c97e97 | 2011 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2012 | err = -EOPNOTSUPP; |
2013 | goto out; | |
2014 | } | |
2015 | ||
79c97e97 | 2016 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2017 | |
2018 | out: | |
2019 | if (params.vlan) | |
2020 | dev_put(params.vlan); | |
3b85875a | 2021 | |
5727ef1b JB |
2022 | return err; |
2023 | } | |
2024 | ||
2025 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2026 | { | |
4c476991 | 2027 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2028 | int err; |
4c476991 | 2029 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2030 | struct station_parameters params; |
2031 | u8 *mac_addr = NULL; | |
2032 | ||
2033 | memset(¶ms, 0, sizeof(params)); | |
2034 | ||
2035 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2036 | return -EINVAL; | |
2037 | ||
5727ef1b JB |
2038 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2039 | return -EINVAL; | |
2040 | ||
2041 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2042 | return -EINVAL; | |
2043 | ||
0e956c13 TLSC |
2044 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2045 | return -EINVAL; | |
2046 | ||
5727ef1b JB |
2047 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2048 | params.supported_rates = | |
2049 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2050 | params.supported_rates_len = | |
2051 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2052 | params.listen_interval = | |
2053 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2054 | |
0e956c13 TLSC |
2055 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2056 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2057 | return -EINVAL; | |
51b50fbe | 2058 | |
36aedc90 JM |
2059 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2060 | params.ht_capa = | |
2061 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2062 | |
eccb8e8f | 2063 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2064 | return -EINVAL; |
2065 | ||
0e956c13 | 2066 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
074ac8df | 2067 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4c476991 JB |
2068 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2069 | return -EINVAL; | |
0e956c13 | 2070 | |
463d0183 | 2071 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2072 | if (err) |
e80cf853 | 2073 | goto out; |
a97f4424 JB |
2074 | |
2075 | /* validate settings */ | |
2076 | err = 0; | |
2077 | ||
79c97e97 | 2078 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2079 | err = -EOPNOTSUPP; |
2080 | goto out; | |
2081 | } | |
2082 | ||
79c97e97 | 2083 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2084 | |
2085 | out: | |
2086 | if (params.vlan) | |
2087 | dev_put(params.vlan); | |
5727ef1b JB |
2088 | return err; |
2089 | } | |
2090 | ||
2091 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2092 | { | |
4c476991 JB |
2093 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2094 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
2095 | u8 *mac_addr = NULL; |
2096 | ||
2097 | if (info->attrs[NL80211_ATTR_MAC]) | |
2098 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2099 | ||
e80cf853 | 2100 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 2101 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 2102 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
2103 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2104 | return -EINVAL; | |
5727ef1b | 2105 | |
4c476991 JB |
2106 | if (!rdev->ops->del_station) |
2107 | return -EOPNOTSUPP; | |
3b85875a | 2108 | |
4c476991 | 2109 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2110 | } |
2111 | ||
2ec600d6 LCC |
2112 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2113 | int flags, struct net_device *dev, | |
2114 | u8 *dst, u8 *next_hop, | |
2115 | struct mpath_info *pinfo) | |
2116 | { | |
2117 | void *hdr; | |
2118 | struct nlattr *pinfoattr; | |
2119 | ||
2120 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2121 | if (!hdr) | |
2122 | return -1; | |
2123 | ||
2124 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2125 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2126 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2127 | ||
f5ea9120 JB |
2128 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2129 | ||
2ec600d6 LCC |
2130 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2131 | if (!pinfoattr) | |
2132 | goto nla_put_failure; | |
2133 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2134 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2135 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2136 | if (pinfo->filled & MPATH_INFO_SN) |
2137 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2138 | pinfo->sn); | |
2ec600d6 LCC |
2139 | if (pinfo->filled & MPATH_INFO_METRIC) |
2140 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2141 | pinfo->metric); | |
2142 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2143 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2144 | pinfo->exptime); | |
2145 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2146 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2147 | pinfo->flags); | |
2148 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2149 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2150 | pinfo->discovery_timeout); | |
2151 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2152 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2153 | pinfo->discovery_retries); | |
2154 | ||
2155 | nla_nest_end(msg, pinfoattr); | |
2156 | ||
2157 | return genlmsg_end(msg, hdr); | |
2158 | ||
2159 | nla_put_failure: | |
bc3ed28c TG |
2160 | genlmsg_cancel(msg, hdr); |
2161 | return -EMSGSIZE; | |
2ec600d6 LCC |
2162 | } |
2163 | ||
2164 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2165 | struct netlink_callback *cb) |
2ec600d6 | 2166 | { |
2ec600d6 LCC |
2167 | struct mpath_info pinfo; |
2168 | struct cfg80211_registered_device *dev; | |
bba95fef | 2169 | struct net_device *netdev; |
2ec600d6 LCC |
2170 | u8 dst[ETH_ALEN]; |
2171 | u8 next_hop[ETH_ALEN]; | |
bba95fef JB |
2172 | int ifidx = cb->args[0]; |
2173 | int path_idx = cb->args[1]; | |
2ec600d6 | 2174 | int err; |
2ec600d6 | 2175 | |
a043897a HS |
2176 | if (!ifidx) |
2177 | ifidx = nl80211_get_ifidx(cb); | |
2178 | if (ifidx < 0) | |
2179 | return ifidx; | |
bba95fef | 2180 | |
3b85875a JB |
2181 | rtnl_lock(); |
2182 | ||
463d0183 | 2183 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); |
3b85875a JB |
2184 | if (!netdev) { |
2185 | err = -ENODEV; | |
2186 | goto out_rtnl; | |
2187 | } | |
bba95fef | 2188 | |
463d0183 | 2189 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
bba95fef JB |
2190 | if (IS_ERR(dev)) { |
2191 | err = PTR_ERR(dev); | |
3b85875a | 2192 | goto out_rtnl; |
bba95fef JB |
2193 | } |
2194 | ||
2195 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2196 | err = -EOPNOTSUPP; |
bba95fef JB |
2197 | goto out_err; |
2198 | } | |
2199 | ||
eec60b03 JM |
2200 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2201 | err = -EOPNOTSUPP; | |
0448b5fc | 2202 | goto out_err; |
eec60b03 JM |
2203 | } |
2204 | ||
bba95fef JB |
2205 | while (1) { |
2206 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2207 | dst, next_hop, &pinfo); | |
2208 | if (err == -ENOENT) | |
2ec600d6 | 2209 | break; |
bba95fef | 2210 | if (err) |
3b85875a | 2211 | goto out_err; |
2ec600d6 | 2212 | |
bba95fef JB |
2213 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2214 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2215 | netdev, dst, next_hop, | |
2216 | &pinfo) < 0) | |
2217 | goto out; | |
2ec600d6 | 2218 | |
bba95fef | 2219 | path_idx++; |
2ec600d6 | 2220 | } |
2ec600d6 | 2221 | |
2ec600d6 | 2222 | |
bba95fef JB |
2223 | out: |
2224 | cb->args[1] = path_idx; | |
2225 | err = skb->len; | |
bba95fef | 2226 | out_err: |
4d0c8aea | 2227 | cfg80211_unlock_rdev(dev); |
3b85875a JB |
2228 | out_rtnl: |
2229 | rtnl_unlock(); | |
bba95fef JB |
2230 | |
2231 | return err; | |
2ec600d6 LCC |
2232 | } |
2233 | ||
2234 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2235 | { | |
4c476991 | 2236 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2237 | int err; |
4c476991 | 2238 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
2239 | struct mpath_info pinfo; |
2240 | struct sk_buff *msg; | |
2241 | u8 *dst = NULL; | |
2242 | u8 next_hop[ETH_ALEN]; | |
2243 | ||
2244 | memset(&pinfo, 0, sizeof(pinfo)); | |
2245 | ||
2246 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2247 | return -EINVAL; | |
2248 | ||
2249 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2250 | ||
4c476991 JB |
2251 | if (!rdev->ops->get_mpath) |
2252 | return -EOPNOTSUPP; | |
2ec600d6 | 2253 | |
4c476991 JB |
2254 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2255 | return -EOPNOTSUPP; | |
eec60b03 | 2256 | |
79c97e97 | 2257 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 2258 | if (err) |
4c476991 | 2259 | return err; |
2ec600d6 | 2260 | |
fd2120ca | 2261 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 2262 | if (!msg) |
4c476991 | 2263 | return -ENOMEM; |
2ec600d6 LCC |
2264 | |
2265 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
2266 | dev, dst, next_hop, &pinfo) < 0) { |
2267 | nlmsg_free(msg); | |
2268 | return -ENOBUFS; | |
2269 | } | |
3b85875a | 2270 | |
4c476991 | 2271 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
2272 | } |
2273 | ||
2274 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2275 | { | |
4c476991 JB |
2276 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2277 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2278 | u8 *dst = NULL; |
2279 | u8 *next_hop = NULL; | |
2280 | ||
2281 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2282 | return -EINVAL; | |
2283 | ||
2284 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2285 | return -EINVAL; | |
2286 | ||
2287 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2288 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2289 | ||
4c476991 JB |
2290 | if (!rdev->ops->change_mpath) |
2291 | return -EOPNOTSUPP; | |
35a8efe1 | 2292 | |
4c476991 JB |
2293 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2294 | return -EOPNOTSUPP; | |
2ec600d6 | 2295 | |
4c476991 | 2296 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 2297 | } |
4c476991 | 2298 | |
2ec600d6 LCC |
2299 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
2300 | { | |
4c476991 JB |
2301 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2302 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2303 | u8 *dst = NULL; |
2304 | u8 *next_hop = NULL; | |
2305 | ||
2306 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2307 | return -EINVAL; | |
2308 | ||
2309 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2310 | return -EINVAL; | |
2311 | ||
2312 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2313 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2314 | ||
4c476991 JB |
2315 | if (!rdev->ops->add_mpath) |
2316 | return -EOPNOTSUPP; | |
35a8efe1 | 2317 | |
4c476991 JB |
2318 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2319 | return -EOPNOTSUPP; | |
2ec600d6 | 2320 | |
4c476991 | 2321 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2322 | } |
2323 | ||
2324 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2325 | { | |
4c476991 JB |
2326 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2327 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2328 | u8 *dst = NULL; |
2329 | ||
2330 | if (info->attrs[NL80211_ATTR_MAC]) | |
2331 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2332 | ||
4c476991 JB |
2333 | if (!rdev->ops->del_mpath) |
2334 | return -EOPNOTSUPP; | |
3b85875a | 2335 | |
4c476991 | 2336 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2337 | } |
2338 | ||
9f1ba906 JM |
2339 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2340 | { | |
4c476991 JB |
2341 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2342 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
2343 | struct bss_parameters params; |
2344 | ||
2345 | memset(¶ms, 0, sizeof(params)); | |
2346 | /* default to not changing parameters */ | |
2347 | params.use_cts_prot = -1; | |
2348 | params.use_short_preamble = -1; | |
2349 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2350 | params.ap_isolate = -1; |
9f1ba906 JM |
2351 | |
2352 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2353 | params.use_cts_prot = | |
2354 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2355 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2356 | params.use_short_preamble = | |
2357 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2358 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2359 | params.use_short_slot_time = | |
2360 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2361 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2362 | params.basic_rates = | |
2363 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2364 | params.basic_rates_len = | |
2365 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2366 | } | |
fd8aaaf3 FF |
2367 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2368 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2369 | |
4c476991 JB |
2370 | if (!rdev->ops->change_bss) |
2371 | return -EOPNOTSUPP; | |
9f1ba906 | 2372 | |
074ac8df | 2373 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2374 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2375 | return -EOPNOTSUPP; | |
3b85875a | 2376 | |
4c476991 | 2377 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2378 | } |
2379 | ||
b54452b0 | 2380 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2381 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2382 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2383 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2384 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2385 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2386 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2387 | }; | |
2388 | ||
2389 | static int parse_reg_rule(struct nlattr *tb[], | |
2390 | struct ieee80211_reg_rule *reg_rule) | |
2391 | { | |
2392 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2393 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2394 | ||
2395 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2396 | return -EINVAL; | |
2397 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2398 | return -EINVAL; | |
2399 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2400 | return -EINVAL; | |
2401 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2402 | return -EINVAL; | |
2403 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2404 | return -EINVAL; | |
2405 | ||
2406 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2407 | ||
2408 | freq_range->start_freq_khz = | |
2409 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2410 | freq_range->end_freq_khz = | |
2411 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2412 | freq_range->max_bandwidth_khz = | |
2413 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2414 | ||
2415 | power_rule->max_eirp = | |
2416 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2417 | ||
2418 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2419 | power_rule->max_antenna_gain = | |
2420 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2421 | ||
2422 | return 0; | |
2423 | } | |
2424 | ||
2425 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2426 | { | |
2427 | int r; | |
2428 | char *data = NULL; | |
2429 | ||
80778f18 LR |
2430 | /* |
2431 | * You should only get this when cfg80211 hasn't yet initialized | |
2432 | * completely when built-in to the kernel right between the time | |
2433 | * window between nl80211_init() and regulatory_init(), if that is | |
2434 | * even possible. | |
2435 | */ | |
2436 | mutex_lock(&cfg80211_mutex); | |
2437 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2438 | mutex_unlock(&cfg80211_mutex); |
2439 | return -EINPROGRESS; | |
80778f18 | 2440 | } |
fe33eb39 | 2441 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2442 | |
fe33eb39 LR |
2443 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2444 | return -EINVAL; | |
b2e1b302 LR |
2445 | |
2446 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2447 | ||
fe33eb39 LR |
2448 | r = regulatory_hint_user(data); |
2449 | ||
b2e1b302 LR |
2450 | return r; |
2451 | } | |
2452 | ||
93da9cc1 | 2453 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2454 | struct genl_info *info) | |
2455 | { | |
4c476991 | 2456 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
93da9cc1 | 2457 | struct mesh_config cur_params; |
2458 | int err; | |
4c476991 | 2459 | struct net_device *dev = info->user_ptr[1]; |
93da9cc1 | 2460 | void *hdr; |
2461 | struct nlattr *pinfoattr; | |
2462 | struct sk_buff *msg; | |
2463 | ||
4c476991 JB |
2464 | if (!rdev->ops->get_mesh_params) |
2465 | return -EOPNOTSUPP; | |
f3f92586 | 2466 | |
93da9cc1 | 2467 | /* Get the mesh params */ |
79c97e97 | 2468 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2469 | if (err) |
4c476991 | 2470 | return err; |
93da9cc1 | 2471 | |
2472 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2473 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2474 | if (!msg) |
2475 | return -ENOMEM; | |
93da9cc1 | 2476 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
2477 | NL80211_CMD_GET_MESH_PARAMS); | |
2478 | if (!hdr) | |
2479 | goto nla_put_failure; | |
2480 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2481 | if (!pinfoattr) | |
2482 | goto nla_put_failure; | |
2483 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2484 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2485 | cur_params.dot11MeshRetryTimeout); | |
2486 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2487 | cur_params.dot11MeshConfirmTimeout); | |
2488 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2489 | cur_params.dot11MeshHoldingTimeout); | |
2490 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2491 | cur_params.dot11MeshMaxPeerLinks); | |
2492 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2493 | cur_params.dot11MeshMaxRetries); | |
2494 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2495 | cur_params.dot11MeshTTL); | |
2496 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2497 | cur_params.auto_open_plinks); | |
2498 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2499 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2500 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2501 | cur_params.path_refresh_time); | |
2502 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2503 | cur_params.min_discovery_timeout); | |
2504 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2505 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2506 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2507 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2508 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2509 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2510 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2511 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2512 | nla_nest_end(msg, pinfoattr); |
2513 | genlmsg_end(msg, hdr); | |
4c476991 | 2514 | return genlmsg_reply(msg, info); |
93da9cc1 | 2515 | |
3b85875a | 2516 | nla_put_failure: |
93da9cc1 | 2517 | genlmsg_cancel(msg, hdr); |
d080e275 | 2518 | nlmsg_free(msg); |
4c476991 | 2519 | return -ENOBUFS; |
93da9cc1 | 2520 | } |
2521 | ||
2522 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2523 | do {\ | |
2524 | if (table[attr_num]) {\ | |
2525 | cfg.param = nla_fn(table[attr_num]); \ | |
2526 | mask |= (1 << (attr_num - 1)); \ | |
2527 | } \ | |
2528 | } while (0);\ | |
2529 | ||
b54452b0 | 2530 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2531 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2532 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2533 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2534 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2535 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2536 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2537 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2538 | ||
2539 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2540 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2541 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2542 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2543 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2544 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2545 | }; | |
2546 | ||
2547 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2548 | { | |
93da9cc1 | 2549 | u32 mask; |
4c476991 JB |
2550 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2551 | struct net_device *dev = info->user_ptr[1]; | |
93da9cc1 | 2552 | struct mesh_config cfg; |
2553 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2554 | struct nlattr *parent_attr; | |
2555 | ||
2556 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2557 | if (!parent_attr) | |
2558 | return -EINVAL; | |
2559 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2560 | parent_attr, nl80211_meshconf_params_policy)) | |
2561 | return -EINVAL; | |
2562 | ||
4c476991 JB |
2563 | if (!rdev->ops->set_mesh_params) |
2564 | return -EOPNOTSUPP; | |
f3f92586 | 2565 | |
93da9cc1 | 2566 | /* This makes sure that there aren't more than 32 mesh config |
2567 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2568 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2569 | ||
2570 | /* Fill in the params struct */ | |
2571 | mask = 0; | |
2572 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2573 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2574 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2575 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2576 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2577 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2578 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2579 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2580 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2581 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2582 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2583 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2584 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2585 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2586 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2587 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2588 | nla_get_u8); | |
2589 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2590 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2591 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2592 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2593 | nla_get_u16); | |
2594 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2595 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2596 | nla_get_u32); | |
2597 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2598 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2599 | nla_get_u16); | |
2600 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2601 | dot11MeshHWMPnetDiameterTraversalTime, | |
2602 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2603 | nla_get_u16); | |
63c5723b RP |
2604 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2605 | dot11MeshHWMPRootMode, mask, | |
2606 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2607 | nla_get_u8); | |
93da9cc1 | 2608 | |
2609 | /* Apply changes */ | |
4c476991 | 2610 | return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2611 | } |
2612 | ||
2613 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2614 | ||
f130347c LR |
2615 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2616 | { | |
2617 | struct sk_buff *msg; | |
2618 | void *hdr = NULL; | |
2619 | struct nlattr *nl_reg_rules; | |
2620 | unsigned int i; | |
2621 | int err = -EINVAL; | |
2622 | ||
a1794390 | 2623 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2624 | |
2625 | if (!cfg80211_regdomain) | |
2626 | goto out; | |
2627 | ||
fd2120ca | 2628 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2629 | if (!msg) { |
2630 | err = -ENOBUFS; | |
2631 | goto out; | |
2632 | } | |
2633 | ||
2634 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2635 | NL80211_CMD_GET_REG); | |
2636 | if (!hdr) | |
2637 | goto nla_put_failure; | |
2638 | ||
2639 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2640 | cfg80211_regdomain->alpha2); | |
2641 | ||
2642 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2643 | if (!nl_reg_rules) | |
2644 | goto nla_put_failure; | |
2645 | ||
2646 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2647 | struct nlattr *nl_reg_rule; | |
2648 | const struct ieee80211_reg_rule *reg_rule; | |
2649 | const struct ieee80211_freq_range *freq_range; | |
2650 | const struct ieee80211_power_rule *power_rule; | |
2651 | ||
2652 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2653 | freq_range = ®_rule->freq_range; | |
2654 | power_rule = ®_rule->power_rule; | |
2655 | ||
2656 | nl_reg_rule = nla_nest_start(msg, i); | |
2657 | if (!nl_reg_rule) | |
2658 | goto nla_put_failure; | |
2659 | ||
2660 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2661 | reg_rule->flags); | |
2662 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2663 | freq_range->start_freq_khz); | |
2664 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2665 | freq_range->end_freq_khz); | |
2666 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2667 | freq_range->max_bandwidth_khz); | |
2668 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2669 | power_rule->max_antenna_gain); | |
2670 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2671 | power_rule->max_eirp); | |
2672 | ||
2673 | nla_nest_end(msg, nl_reg_rule); | |
2674 | } | |
2675 | ||
2676 | nla_nest_end(msg, nl_reg_rules); | |
2677 | ||
2678 | genlmsg_end(msg, hdr); | |
134e6375 | 2679 | err = genlmsg_reply(msg, info); |
f130347c LR |
2680 | goto out; |
2681 | ||
2682 | nla_put_failure: | |
2683 | genlmsg_cancel(msg, hdr); | |
d080e275 | 2684 | nlmsg_free(msg); |
f130347c LR |
2685 | err = -EMSGSIZE; |
2686 | out: | |
a1794390 | 2687 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2688 | return err; |
2689 | } | |
2690 | ||
b2e1b302 LR |
2691 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2692 | { | |
2693 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2694 | struct nlattr *nl_reg_rule; | |
2695 | char *alpha2 = NULL; | |
2696 | int rem_reg_rules = 0, r = 0; | |
2697 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2698 | struct ieee80211_regdomain *rd = NULL; | |
2699 | ||
2700 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2701 | return -EINVAL; | |
2702 | ||
2703 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2704 | return -EINVAL; | |
2705 | ||
2706 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2707 | ||
2708 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2709 | rem_reg_rules) { | |
2710 | num_rules++; | |
2711 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2712 | return -EINVAL; |
b2e1b302 LR |
2713 | } |
2714 | ||
61405e97 LR |
2715 | mutex_lock(&cfg80211_mutex); |
2716 | ||
d0e18f83 LR |
2717 | if (!reg_is_valid_request(alpha2)) { |
2718 | r = -EINVAL; | |
2719 | goto bad_reg; | |
2720 | } | |
b2e1b302 LR |
2721 | |
2722 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2723 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2724 | ||
2725 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2726 | if (!rd) { |
2727 | r = -ENOMEM; | |
2728 | goto bad_reg; | |
2729 | } | |
b2e1b302 LR |
2730 | |
2731 | rd->n_reg_rules = num_rules; | |
2732 | rd->alpha2[0] = alpha2[0]; | |
2733 | rd->alpha2[1] = alpha2[1]; | |
2734 | ||
2735 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2736 | rem_reg_rules) { | |
2737 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2738 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2739 | reg_rule_policy); | |
2740 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2741 | if (r) | |
2742 | goto bad_reg; | |
2743 | ||
2744 | rule_idx++; | |
2745 | ||
d0e18f83 LR |
2746 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2747 | r = -EINVAL; | |
b2e1b302 | 2748 | goto bad_reg; |
d0e18f83 | 2749 | } |
b2e1b302 LR |
2750 | } |
2751 | ||
2752 | BUG_ON(rule_idx != num_rules); | |
2753 | ||
b2e1b302 | 2754 | r = set_regdom(rd); |
61405e97 | 2755 | |
a1794390 | 2756 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2757 | |
b2e1b302 LR |
2758 | return r; |
2759 | ||
d2372b31 | 2760 | bad_reg: |
61405e97 | 2761 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2762 | kfree(rd); |
d0e18f83 | 2763 | return r; |
b2e1b302 LR |
2764 | } |
2765 | ||
83f5e2cf JB |
2766 | static int validate_scan_freqs(struct nlattr *freqs) |
2767 | { | |
2768 | struct nlattr *attr1, *attr2; | |
2769 | int n_channels = 0, tmp1, tmp2; | |
2770 | ||
2771 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2772 | n_channels++; | |
2773 | /* | |
2774 | * Some hardware has a limited channel list for | |
2775 | * scanning, and it is pretty much nonsensical | |
2776 | * to scan for a channel twice, so disallow that | |
2777 | * and don't require drivers to check that the | |
2778 | * channel list they get isn't longer than what | |
2779 | * they can scan, as long as they can scan all | |
2780 | * the channels they registered at once. | |
2781 | */ | |
2782 | nla_for_each_nested(attr2, freqs, tmp2) | |
2783 | if (attr1 != attr2 && | |
2784 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2785 | return 0; | |
2786 | } | |
2787 | ||
2788 | return n_channels; | |
2789 | } | |
2790 | ||
2a519311 JB |
2791 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2792 | { | |
4c476991 JB |
2793 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2794 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 JB |
2795 | struct cfg80211_scan_request *request; |
2796 | struct cfg80211_ssid *ssid; | |
2797 | struct ieee80211_channel *channel; | |
2798 | struct nlattr *attr; | |
2799 | struct wiphy *wiphy; | |
83f5e2cf | 2800 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2801 | enum ieee80211_band band; |
70692ad2 | 2802 | size_t ie_len; |
2a519311 | 2803 | |
f4a11bb0 JB |
2804 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2805 | return -EINVAL; | |
2806 | ||
79c97e97 | 2807 | wiphy = &rdev->wiphy; |
2a519311 | 2808 | |
4c476991 JB |
2809 | if (!rdev->ops->scan) |
2810 | return -EOPNOTSUPP; | |
2a519311 | 2811 | |
4c476991 JB |
2812 | if (rdev->scan_req) |
2813 | return -EBUSY; | |
2a519311 JB |
2814 | |
2815 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2816 | n_channels = validate_scan_freqs( |
2817 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
2818 | if (!n_channels) |
2819 | return -EINVAL; | |
2a519311 | 2820 | } else { |
83f5e2cf JB |
2821 | n_channels = 0; |
2822 | ||
2a519311 JB |
2823 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2824 | if (wiphy->bands[band]) | |
2825 | n_channels += wiphy->bands[band]->n_channels; | |
2826 | } | |
2827 | ||
2828 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2829 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2830 | n_ssids++; | |
2831 | ||
4c476991 JB |
2832 | if (n_ssids > wiphy->max_scan_ssids) |
2833 | return -EINVAL; | |
2a519311 | 2834 | |
70692ad2 JM |
2835 | if (info->attrs[NL80211_ATTR_IE]) |
2836 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2837 | else | |
2838 | ie_len = 0; | |
2839 | ||
4c476991 JB |
2840 | if (ie_len > wiphy->max_scan_ie_len) |
2841 | return -EINVAL; | |
18a83659 | 2842 | |
2a519311 JB |
2843 | request = kzalloc(sizeof(*request) |
2844 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2845 | + sizeof(channel) * n_channels |
2846 | + ie_len, GFP_KERNEL); | |
4c476991 JB |
2847 | if (!request) |
2848 | return -ENOMEM; | |
2a519311 | 2849 | |
2a519311 | 2850 | if (n_ssids) |
5ba63533 | 2851 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 2852 | request->n_ssids = n_ssids; |
70692ad2 JM |
2853 | if (ie_len) { |
2854 | if (request->ssids) | |
2855 | request->ie = (void *)(request->ssids + n_ssids); | |
2856 | else | |
2857 | request->ie = (void *)(request->channels + n_channels); | |
2858 | } | |
2a519311 | 2859 | |
584991dc | 2860 | i = 0; |
2a519311 JB |
2861 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
2862 | /* user specified, bail out if channel not found */ | |
2a519311 | 2863 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
2864 | struct ieee80211_channel *chan; |
2865 | ||
2866 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2867 | ||
2868 | if (!chan) { | |
2a519311 JB |
2869 | err = -EINVAL; |
2870 | goto out_free; | |
2871 | } | |
584991dc JB |
2872 | |
2873 | /* ignore disabled channels */ | |
2874 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2875 | continue; | |
2876 | ||
2877 | request->channels[i] = chan; | |
2a519311 JB |
2878 | i++; |
2879 | } | |
2880 | } else { | |
2881 | /* all channels */ | |
2a519311 JB |
2882 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
2883 | int j; | |
2884 | if (!wiphy->bands[band]) | |
2885 | continue; | |
2886 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
2887 | struct ieee80211_channel *chan; |
2888 | ||
2889 | chan = &wiphy->bands[band]->channels[j]; | |
2890 | ||
2891 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2892 | continue; | |
2893 | ||
2894 | request->channels[i] = chan; | |
2a519311 JB |
2895 | i++; |
2896 | } | |
2897 | } | |
2898 | } | |
2899 | ||
584991dc JB |
2900 | if (!i) { |
2901 | err = -EINVAL; | |
2902 | goto out_free; | |
2903 | } | |
2904 | ||
2905 | request->n_channels = i; | |
2906 | ||
2a519311 JB |
2907 | i = 0; |
2908 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2909 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2910 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2911 | err = -EINVAL; | |
2912 | goto out_free; | |
2913 | } | |
2914 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2915 | request->ssids[i].ssid_len = nla_len(attr); | |
2916 | i++; | |
2917 | } | |
2918 | } | |
2919 | ||
70692ad2 JM |
2920 | if (info->attrs[NL80211_ATTR_IE]) { |
2921 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
2922 | memcpy((void *)request->ie, |
2923 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
2924 | request->ie_len); |
2925 | } | |
2926 | ||
463d0183 | 2927 | request->dev = dev; |
79c97e97 | 2928 | request->wiphy = &rdev->wiphy; |
2a519311 | 2929 | |
79c97e97 JB |
2930 | rdev->scan_req = request; |
2931 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 2932 | |
463d0183 | 2933 | if (!err) { |
79c97e97 | 2934 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 2935 | dev_hold(dev); |
4c476991 | 2936 | } else { |
2a519311 | 2937 | out_free: |
79c97e97 | 2938 | rdev->scan_req = NULL; |
2a519311 JB |
2939 | kfree(request); |
2940 | } | |
3b85875a | 2941 | |
2a519311 JB |
2942 | return err; |
2943 | } | |
2944 | ||
2945 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
2946 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
2947 | struct wireless_dev *wdev, |
2948 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 2949 | { |
48ab905d | 2950 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
2951 | void *hdr; |
2952 | struct nlattr *bss; | |
48ab905d JB |
2953 | int i; |
2954 | ||
2955 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
2956 | |
2957 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
2958 | NL80211_CMD_NEW_SCAN_RESULTS); | |
2959 | if (!hdr) | |
2960 | return -1; | |
2961 | ||
f5ea9120 | 2962 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 2963 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
2964 | |
2965 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
2966 | if (!bss) | |
2967 | goto nla_put_failure; | |
2968 | if (!is_zero_ether_addr(res->bssid)) | |
2969 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
2970 | if (res->information_elements && res->len_information_elements) | |
2971 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
2972 | res->len_information_elements, | |
2973 | res->information_elements); | |
34a6eddb JM |
2974 | if (res->beacon_ies && res->len_beacon_ies && |
2975 | res->beacon_ies != res->information_elements) | |
2976 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
2977 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
2978 | if (res->tsf) |
2979 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
2980 | if (res->beacon_interval) | |
2981 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
2982 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
2983 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
2984 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
2985 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 2986 | |
77965c97 | 2987 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
2988 | case CFG80211_SIGNAL_TYPE_MBM: |
2989 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
2990 | break; | |
2991 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
2992 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
2993 | break; | |
2994 | default: | |
2995 | break; | |
2996 | } | |
2997 | ||
48ab905d | 2998 | switch (wdev->iftype) { |
074ac8df | 2999 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d JB |
3000 | case NL80211_IFTYPE_STATION: |
3001 | if (intbss == wdev->current_bss) | |
3002 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3003 | NL80211_BSS_STATUS_ASSOCIATED); | |
3004 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3005 | if (intbss != wdev->auth_bsses[i]) | |
3006 | continue; | |
3007 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3008 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3009 | break; | |
3010 | } | |
3011 | break; | |
3012 | case NL80211_IFTYPE_ADHOC: | |
3013 | if (intbss == wdev->current_bss) | |
3014 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3015 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3016 | break; | |
3017 | default: | |
3018 | break; | |
3019 | } | |
3020 | ||
2a519311 JB |
3021 | nla_nest_end(msg, bss); |
3022 | ||
3023 | return genlmsg_end(msg, hdr); | |
3024 | ||
3025 | nla_put_failure: | |
3026 | genlmsg_cancel(msg, hdr); | |
3027 | return -EMSGSIZE; | |
3028 | } | |
3029 | ||
3030 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3031 | struct netlink_callback *cb) | |
3032 | { | |
48ab905d JB |
3033 | struct cfg80211_registered_device *rdev; |
3034 | struct net_device *dev; | |
2a519311 | 3035 | struct cfg80211_internal_bss *scan; |
48ab905d | 3036 | struct wireless_dev *wdev; |
2a519311 JB |
3037 | int ifidx = cb->args[0]; |
3038 | int start = cb->args[1], idx = 0; | |
3039 | int err; | |
3040 | ||
a043897a HS |
3041 | if (!ifidx) |
3042 | ifidx = nl80211_get_ifidx(cb); | |
3043 | if (ifidx < 0) | |
3044 | return ifidx; | |
3045 | cb->args[0] = ifidx; | |
2a519311 | 3046 | |
463d0183 | 3047 | dev = dev_get_by_index(sock_net(skb->sk), ifidx); |
48ab905d | 3048 | if (!dev) |
2a519311 JB |
3049 | return -ENODEV; |
3050 | ||
463d0183 | 3051 | rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); |
48ab905d JB |
3052 | if (IS_ERR(rdev)) { |
3053 | err = PTR_ERR(rdev); | |
2a519311 JB |
3054 | goto out_put_netdev; |
3055 | } | |
3056 | ||
48ab905d | 3057 | wdev = dev->ieee80211_ptr; |
2a519311 | 3058 | |
48ab905d JB |
3059 | wdev_lock(wdev); |
3060 | spin_lock_bh(&rdev->bss_lock); | |
3061 | cfg80211_bss_expire(rdev); | |
3062 | ||
3063 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3064 | if (++idx <= start) |
3065 | continue; | |
3066 | if (nl80211_send_bss(skb, | |
3067 | NETLINK_CB(cb->skb).pid, | |
3068 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3069 | rdev, wdev, scan) < 0) { |
2a519311 JB |
3070 | idx--; |
3071 | goto out; | |
3072 | } | |
3073 | } | |
3074 | ||
3075 | out: | |
48ab905d JB |
3076 | spin_unlock_bh(&rdev->bss_lock); |
3077 | wdev_unlock(wdev); | |
2a519311 JB |
3078 | |
3079 | cb->args[1] = idx; | |
3080 | err = skb->len; | |
48ab905d | 3081 | cfg80211_unlock_rdev(rdev); |
2a519311 | 3082 | out_put_netdev: |
48ab905d | 3083 | dev_put(dev); |
2a519311 JB |
3084 | |
3085 | return err; | |
3086 | } | |
3087 | ||
61fa713c HS |
3088 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3089 | int flags, struct net_device *dev, | |
3090 | struct survey_info *survey) | |
3091 | { | |
3092 | void *hdr; | |
3093 | struct nlattr *infoattr; | |
3094 | ||
3095 | /* Survey without a channel doesn't make sense */ | |
3096 | if (!survey->channel) | |
3097 | return -EINVAL; | |
3098 | ||
3099 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3100 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3101 | if (!hdr) | |
3102 | return -ENOMEM; | |
3103 | ||
3104 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3105 | ||
3106 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3107 | if (!infoattr) | |
3108 | goto nla_put_failure; | |
3109 | ||
3110 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3111 | survey->channel->center_freq); | |
3112 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3113 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3114 | survey->noise); | |
17e5a808 FF |
3115 | if (survey->filled & SURVEY_INFO_IN_USE) |
3116 | NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); | |
61fa713c HS |
3117 | |
3118 | nla_nest_end(msg, infoattr); | |
3119 | ||
3120 | return genlmsg_end(msg, hdr); | |
3121 | ||
3122 | nla_put_failure: | |
3123 | genlmsg_cancel(msg, hdr); | |
3124 | return -EMSGSIZE; | |
3125 | } | |
3126 | ||
3127 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3128 | struct netlink_callback *cb) | |
3129 | { | |
3130 | struct survey_info survey; | |
3131 | struct cfg80211_registered_device *dev; | |
3132 | struct net_device *netdev; | |
3133 | int ifidx = cb->args[0]; | |
3134 | int survey_idx = cb->args[1]; | |
3135 | int res; | |
3136 | ||
3137 | if (!ifidx) | |
3138 | ifidx = nl80211_get_ifidx(cb); | |
3139 | if (ifidx < 0) | |
3140 | return ifidx; | |
3141 | cb->args[0] = ifidx; | |
3142 | ||
3143 | rtnl_lock(); | |
3144 | ||
3145 | netdev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
3146 | if (!netdev) { | |
3147 | res = -ENODEV; | |
3148 | goto out_rtnl; | |
3149 | } | |
3150 | ||
3151 | dev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
3152 | if (IS_ERR(dev)) { | |
3153 | res = PTR_ERR(dev); | |
3154 | goto out_rtnl; | |
3155 | } | |
3156 | ||
3157 | if (!dev->ops->dump_survey) { | |
3158 | res = -EOPNOTSUPP; | |
3159 | goto out_err; | |
3160 | } | |
3161 | ||
3162 | while (1) { | |
3163 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3164 | &survey); | |
3165 | if (res == -ENOENT) | |
3166 | break; | |
3167 | if (res) | |
3168 | goto out_err; | |
3169 | ||
3170 | if (nl80211_send_survey(skb, | |
3171 | NETLINK_CB(cb->skb).pid, | |
3172 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3173 | netdev, | |
3174 | &survey) < 0) | |
3175 | goto out; | |
3176 | survey_idx++; | |
3177 | } | |
3178 | ||
3179 | out: | |
3180 | cb->args[1] = survey_idx; | |
3181 | res = skb->len; | |
3182 | out_err: | |
3183 | cfg80211_unlock_rdev(dev); | |
3184 | out_rtnl: | |
3185 | rtnl_unlock(); | |
3186 | ||
3187 | return res; | |
3188 | } | |
3189 | ||
255e737e JM |
3190 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3191 | { | |
b23aa676 SO |
3192 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3193 | } | |
3194 | ||
3195 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3196 | { | |
3197 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3198 | NL80211_WPA_VERSION_2)); | |
3199 | } | |
3200 | ||
3201 | static bool nl80211_valid_akm_suite(u32 akm) | |
3202 | { | |
3203 | return akm == WLAN_AKM_SUITE_8021X || | |
3204 | akm == WLAN_AKM_SUITE_PSK; | |
3205 | } | |
3206 | ||
3207 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3208 | { | |
3209 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3210 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3211 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3212 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3213 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3214 | } |
3215 | ||
b23aa676 | 3216 | |
636a5d36 JM |
3217 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3218 | { | |
4c476991 JB |
3219 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3220 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
3221 | struct ieee80211_channel *chan; |
3222 | const u8 *bssid, *ssid, *ie = NULL; | |
3223 | int err, ssid_len, ie_len = 0; | |
3224 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3225 | struct key_parse key; |
d5cdfacb | 3226 | bool local_state_change; |
636a5d36 | 3227 | |
f4a11bb0 JB |
3228 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3229 | return -EINVAL; | |
3230 | ||
3231 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3232 | return -EINVAL; | |
3233 | ||
1778092e JM |
3234 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3235 | return -EINVAL; | |
3236 | ||
19957bb3 JB |
3237 | if (!info->attrs[NL80211_ATTR_SSID]) |
3238 | return -EINVAL; | |
3239 | ||
3240 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3241 | return -EINVAL; | |
3242 | ||
fffd0934 JB |
3243 | err = nl80211_parse_key(info, &key); |
3244 | if (err) | |
3245 | return err; | |
3246 | ||
3247 | if (key.idx >= 0) { | |
3248 | if (!key.p.key || !key.p.key_len) | |
3249 | return -EINVAL; | |
3250 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3251 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3252 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3253 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3254 | return -EINVAL; | |
3255 | if (key.idx > 4) | |
3256 | return -EINVAL; | |
3257 | } else { | |
3258 | key.p.key_len = 0; | |
3259 | key.p.key = NULL; | |
3260 | } | |
3261 | ||
afea0b7a JB |
3262 | if (key.idx >= 0) { |
3263 | int i; | |
3264 | bool ok = false; | |
3265 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3266 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3267 | ok = true; | |
3268 | break; | |
3269 | } | |
3270 | } | |
4c476991 JB |
3271 | if (!ok) |
3272 | return -EINVAL; | |
afea0b7a JB |
3273 | } |
3274 | ||
4c476991 JB |
3275 | if (!rdev->ops->auth) |
3276 | return -EOPNOTSUPP; | |
636a5d36 | 3277 | |
074ac8df | 3278 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3279 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3280 | return -EOPNOTSUPP; | |
eec60b03 | 3281 | |
19957bb3 | 3282 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3283 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 3284 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
3285 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3286 | return -EINVAL; | |
636a5d36 | 3287 | |
19957bb3 JB |
3288 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3289 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3290 | |
3291 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3292 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3293 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3294 | } |
3295 | ||
19957bb3 | 3296 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
3297 | if (!nl80211_valid_auth_type(auth_type)) |
3298 | return -EINVAL; | |
636a5d36 | 3299 | |
d5cdfacb JM |
3300 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3301 | ||
4c476991 JB |
3302 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
3303 | ssid, ssid_len, ie, ie_len, | |
3304 | key.p.key, key.p.key_len, key.idx, | |
3305 | local_state_change); | |
636a5d36 JM |
3306 | } |
3307 | ||
c0692b8f JB |
3308 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
3309 | struct genl_info *info, | |
3dc27d25 JB |
3310 | struct cfg80211_crypto_settings *settings, |
3311 | int cipher_limit) | |
b23aa676 | 3312 | { |
c0b2bbd8 JB |
3313 | memset(settings, 0, sizeof(*settings)); |
3314 | ||
b23aa676 SO |
3315 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3316 | ||
c0692b8f JB |
3317 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
3318 | u16 proto; | |
3319 | proto = nla_get_u16( | |
3320 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
3321 | settings->control_port_ethertype = cpu_to_be16(proto); | |
3322 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
3323 | proto != ETH_P_PAE) | |
3324 | return -EINVAL; | |
3325 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
3326 | settings->control_port_no_encrypt = true; | |
3327 | } else | |
3328 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
3329 | ||
b23aa676 SO |
3330 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
3331 | void *data; | |
3332 | int len, i; | |
3333 | ||
3334 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3335 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3336 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3337 | ||
3338 | if (len % sizeof(u32)) | |
3339 | return -EINVAL; | |
3340 | ||
3dc27d25 | 3341 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3342 | return -EINVAL; |
3343 | ||
3344 | memcpy(settings->ciphers_pairwise, data, len); | |
3345 | ||
3346 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3347 | if (!nl80211_valid_cipher_suite( | |
3348 | settings->ciphers_pairwise[i])) | |
3349 | return -EINVAL; | |
3350 | } | |
3351 | ||
3352 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3353 | settings->cipher_group = | |
3354 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3355 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3356 | return -EINVAL; | |
3357 | } | |
3358 | ||
3359 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3360 | settings->wpa_versions = | |
3361 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3362 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3363 | return -EINVAL; | |
3364 | } | |
3365 | ||
3366 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3367 | void *data; | |
3368 | int len, i; | |
3369 | ||
3370 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3371 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3372 | settings->n_akm_suites = len / sizeof(u32); | |
3373 | ||
3374 | if (len % sizeof(u32)) | |
3375 | return -EINVAL; | |
3376 | ||
3377 | memcpy(settings->akm_suites, data, len); | |
3378 | ||
3379 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3380 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3381 | return -EINVAL; | |
3382 | } | |
3383 | ||
3384 | return 0; | |
3385 | } | |
3386 | ||
636a5d36 JM |
3387 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3388 | { | |
4c476991 JB |
3389 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3390 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3391 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3392 | struct ieee80211_channel *chan; |
3e5d7649 | 3393 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3394 | int err, ssid_len, ie_len = 0; |
3395 | bool use_mfp = false; | |
636a5d36 | 3396 | |
f4a11bb0 JB |
3397 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3398 | return -EINVAL; | |
3399 | ||
3400 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3401 | !info->attrs[NL80211_ATTR_SSID] || |
3402 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3403 | return -EINVAL; |
3404 | ||
4c476991 JB |
3405 | if (!rdev->ops->assoc) |
3406 | return -EOPNOTSUPP; | |
636a5d36 | 3407 | |
074ac8df | 3408 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3409 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3410 | return -EOPNOTSUPP; | |
eec60b03 | 3411 | |
19957bb3 | 3412 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3413 | |
19957bb3 JB |
3414 | chan = ieee80211_get_channel(&rdev->wiphy, |
3415 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
3416 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3417 | return -EINVAL; | |
636a5d36 | 3418 | |
19957bb3 JB |
3419 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3420 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3421 | |
3422 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3423 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3424 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3425 | } |
3426 | ||
dc6382ce | 3427 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3428 | enum nl80211_mfp mfp = |
dc6382ce | 3429 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3430 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3431 | use_mfp = true; |
4c476991 JB |
3432 | else if (mfp != NL80211_MFP_NO) |
3433 | return -EINVAL; | |
dc6382ce JM |
3434 | } |
3435 | ||
3e5d7649 JB |
3436 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3437 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3438 | ||
c0692b8f | 3439 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 3440 | if (!err) |
3e5d7649 JB |
3441 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3442 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3443 | &crypto); |
636a5d36 | 3444 | |
636a5d36 JM |
3445 | return err; |
3446 | } | |
3447 | ||
3448 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3449 | { | |
4c476991 JB |
3450 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3451 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3452 | const u8 *ie = NULL, *bssid; |
4c476991 | 3453 | int ie_len = 0; |
19957bb3 | 3454 | u16 reason_code; |
d5cdfacb | 3455 | bool local_state_change; |
636a5d36 | 3456 | |
f4a11bb0 JB |
3457 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3458 | return -EINVAL; | |
3459 | ||
3460 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3461 | return -EINVAL; | |
3462 | ||
3463 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3464 | return -EINVAL; | |
3465 | ||
4c476991 JB |
3466 | if (!rdev->ops->deauth) |
3467 | return -EOPNOTSUPP; | |
636a5d36 | 3468 | |
074ac8df | 3469 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3470 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3471 | return -EOPNOTSUPP; | |
eec60b03 | 3472 | |
19957bb3 | 3473 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3474 | |
19957bb3 JB |
3475 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3476 | if (reason_code == 0) { | |
f4a11bb0 | 3477 | /* Reason Code 0 is reserved */ |
4c476991 | 3478 | return -EINVAL; |
255e737e | 3479 | } |
636a5d36 JM |
3480 | |
3481 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3482 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3483 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3484 | } |
3485 | ||
d5cdfacb JM |
3486 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3487 | ||
4c476991 JB |
3488 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
3489 | local_state_change); | |
636a5d36 JM |
3490 | } |
3491 | ||
3492 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3493 | { | |
4c476991 JB |
3494 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3495 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3496 | const u8 *ie = NULL, *bssid; |
4c476991 | 3497 | int ie_len = 0; |
19957bb3 | 3498 | u16 reason_code; |
d5cdfacb | 3499 | bool local_state_change; |
636a5d36 | 3500 | |
f4a11bb0 JB |
3501 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3502 | return -EINVAL; | |
3503 | ||
3504 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3505 | return -EINVAL; | |
3506 | ||
3507 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3508 | return -EINVAL; | |
3509 | ||
4c476991 JB |
3510 | if (!rdev->ops->disassoc) |
3511 | return -EOPNOTSUPP; | |
636a5d36 | 3512 | |
074ac8df | 3513 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3514 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3515 | return -EOPNOTSUPP; | |
eec60b03 | 3516 | |
19957bb3 | 3517 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3518 | |
19957bb3 JB |
3519 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3520 | if (reason_code == 0) { | |
f4a11bb0 | 3521 | /* Reason Code 0 is reserved */ |
4c476991 | 3522 | return -EINVAL; |
255e737e | 3523 | } |
636a5d36 JM |
3524 | |
3525 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3526 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3527 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3528 | } |
3529 | ||
d5cdfacb JM |
3530 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3531 | ||
4c476991 JB |
3532 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
3533 | local_state_change); | |
636a5d36 JM |
3534 | } |
3535 | ||
04a773ad JB |
3536 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3537 | { | |
4c476991 JB |
3538 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3539 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
3540 | struct cfg80211_ibss_params ibss; |
3541 | struct wiphy *wiphy; | |
fffd0934 | 3542 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3543 | int err; |
3544 | ||
8e30bc55 JB |
3545 | memset(&ibss, 0, sizeof(ibss)); |
3546 | ||
04a773ad JB |
3547 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3548 | return -EINVAL; | |
3549 | ||
3550 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3551 | !info->attrs[NL80211_ATTR_SSID] || | |
3552 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3553 | return -EINVAL; | |
3554 | ||
8e30bc55 JB |
3555 | ibss.beacon_interval = 100; |
3556 | ||
3557 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3558 | ibss.beacon_interval = | |
3559 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3560 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3561 | return -EINVAL; | |
3562 | } | |
3563 | ||
4c476991 JB |
3564 | if (!rdev->ops->join_ibss) |
3565 | return -EOPNOTSUPP; | |
04a773ad | 3566 | |
4c476991 JB |
3567 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3568 | return -EOPNOTSUPP; | |
04a773ad | 3569 | |
79c97e97 | 3570 | wiphy = &rdev->wiphy; |
04a773ad JB |
3571 | |
3572 | if (info->attrs[NL80211_ATTR_MAC]) | |
3573 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3574 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3575 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3576 | ||
3577 | if (info->attrs[NL80211_ATTR_IE]) { | |
3578 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3579 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3580 | } | |
3581 | ||
3582 | ibss.channel = ieee80211_get_channel(wiphy, | |
3583 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3584 | if (!ibss.channel || | |
3585 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
3586 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
3587 | return -EINVAL; | |
04a773ad JB |
3588 | |
3589 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3590 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3591 | ||
fbd2c8dc TP |
3592 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3593 | u8 *rates = | |
3594 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3595 | int n_rates = | |
3596 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3597 | struct ieee80211_supported_band *sband = | |
3598 | wiphy->bands[ibss.channel->band]; | |
3599 | int i, j; | |
3600 | ||
4c476991 JB |
3601 | if (n_rates == 0) |
3602 | return -EINVAL; | |
fbd2c8dc TP |
3603 | |
3604 | for (i = 0; i < n_rates; i++) { | |
3605 | int rate = (rates[i] & 0x7f) * 5; | |
3606 | bool found = false; | |
3607 | ||
3608 | for (j = 0; j < sband->n_bitrates; j++) { | |
3609 | if (sband->bitrates[j].bitrate == rate) { | |
3610 | found = true; | |
3611 | ibss.basic_rates |= BIT(j); | |
3612 | break; | |
3613 | } | |
3614 | } | |
4c476991 JB |
3615 | if (!found) |
3616 | return -EINVAL; | |
fbd2c8dc | 3617 | } |
fbd2c8dc TP |
3618 | } |
3619 | ||
4c476991 JB |
3620 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3621 | connkeys = nl80211_parse_connkeys(rdev, | |
3622 | info->attrs[NL80211_ATTR_KEYS]); | |
3623 | if (IS_ERR(connkeys)) | |
3624 | return PTR_ERR(connkeys); | |
3625 | } | |
04a773ad | 3626 | |
4c476991 | 3627 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
3628 | if (err) |
3629 | kfree(connkeys); | |
04a773ad JB |
3630 | return err; |
3631 | } | |
3632 | ||
3633 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3634 | { | |
4c476991 JB |
3635 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3636 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 3637 | |
4c476991 JB |
3638 | if (!rdev->ops->leave_ibss) |
3639 | return -EOPNOTSUPP; | |
04a773ad | 3640 | |
4c476991 JB |
3641 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3642 | return -EOPNOTSUPP; | |
04a773ad | 3643 | |
4c476991 | 3644 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3645 | } |
3646 | ||
aff89a9b JB |
3647 | #ifdef CONFIG_NL80211_TESTMODE |
3648 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3649 | .name = "testmode", | |
3650 | }; | |
3651 | ||
3652 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3653 | { | |
4c476991 | 3654 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
3655 | int err; |
3656 | ||
3657 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3658 | return -EINVAL; | |
3659 | ||
aff89a9b JB |
3660 | err = -EOPNOTSUPP; |
3661 | if (rdev->ops->testmode_cmd) { | |
3662 | rdev->testmode_info = info; | |
3663 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3664 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3665 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3666 | rdev->testmode_info = NULL; | |
3667 | } | |
3668 | ||
aff89a9b JB |
3669 | return err; |
3670 | } | |
3671 | ||
3672 | static struct sk_buff * | |
3673 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3674 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3675 | { | |
3676 | struct sk_buff *skb; | |
3677 | void *hdr; | |
3678 | struct nlattr *data; | |
3679 | ||
3680 | skb = nlmsg_new(approxlen + 100, gfp); | |
3681 | if (!skb) | |
3682 | return NULL; | |
3683 | ||
3684 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3685 | if (!hdr) { | |
3686 | kfree_skb(skb); | |
3687 | return NULL; | |
3688 | } | |
3689 | ||
3690 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3691 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3692 | ||
3693 | ((void **)skb->cb)[0] = rdev; | |
3694 | ((void **)skb->cb)[1] = hdr; | |
3695 | ((void **)skb->cb)[2] = data; | |
3696 | ||
3697 | return skb; | |
3698 | ||
3699 | nla_put_failure: | |
3700 | kfree_skb(skb); | |
3701 | return NULL; | |
3702 | } | |
3703 | ||
3704 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3705 | int approxlen) | |
3706 | { | |
3707 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3708 | ||
3709 | if (WARN_ON(!rdev->testmode_info)) | |
3710 | return NULL; | |
3711 | ||
3712 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3713 | rdev->testmode_info->snd_pid, | |
3714 | rdev->testmode_info->snd_seq, | |
3715 | GFP_KERNEL); | |
3716 | } | |
3717 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3718 | ||
3719 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3720 | { | |
3721 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3722 | void *hdr = ((void **)skb->cb)[1]; | |
3723 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3724 | ||
3725 | if (WARN_ON(!rdev->testmode_info)) { | |
3726 | kfree_skb(skb); | |
3727 | return -EINVAL; | |
3728 | } | |
3729 | ||
3730 | nla_nest_end(skb, data); | |
3731 | genlmsg_end(skb, hdr); | |
3732 | return genlmsg_reply(skb, rdev->testmode_info); | |
3733 | } | |
3734 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3735 | ||
3736 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
3737 | int approxlen, gfp_t gfp) | |
3738 | { | |
3739 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3740 | ||
3741 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
3742 | } | |
3743 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
3744 | ||
3745 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
3746 | { | |
3747 | void *hdr = ((void **)skb->cb)[1]; | |
3748 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3749 | ||
3750 | nla_nest_end(skb, data); | |
3751 | genlmsg_end(skb, hdr); | |
3752 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
3753 | } | |
3754 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
3755 | #endif | |
3756 | ||
b23aa676 SO |
3757 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
3758 | { | |
4c476991 JB |
3759 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3760 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3761 | struct cfg80211_connect_params connect; |
3762 | struct wiphy *wiphy; | |
fffd0934 | 3763 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
3764 | int err; |
3765 | ||
3766 | memset(&connect, 0, sizeof(connect)); | |
3767 | ||
3768 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3769 | return -EINVAL; | |
3770 | ||
3771 | if (!info->attrs[NL80211_ATTR_SSID] || | |
3772 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3773 | return -EINVAL; | |
3774 | ||
3775 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3776 | connect.auth_type = | |
3777 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3778 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
3779 | return -EINVAL; | |
3780 | } else | |
3781 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3782 | ||
3783 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
3784 | ||
c0692b8f | 3785 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 3786 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
3787 | if (err) |
3788 | return err; | |
b23aa676 | 3789 | |
074ac8df | 3790 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3791 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3792 | return -EOPNOTSUPP; | |
b23aa676 | 3793 | |
79c97e97 | 3794 | wiphy = &rdev->wiphy; |
b23aa676 | 3795 | |
b23aa676 SO |
3796 | if (info->attrs[NL80211_ATTR_MAC]) |
3797 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3798 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3799 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3800 | ||
3801 | if (info->attrs[NL80211_ATTR_IE]) { | |
3802 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3803 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3804 | } | |
3805 | ||
3806 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3807 | connect.channel = | |
3808 | ieee80211_get_channel(wiphy, | |
3809 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3810 | if (!connect.channel || | |
4c476991 JB |
3811 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
3812 | return -EINVAL; | |
b23aa676 SO |
3813 | } |
3814 | ||
fffd0934 JB |
3815 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3816 | connkeys = nl80211_parse_connkeys(rdev, | |
3817 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
3818 | if (IS_ERR(connkeys)) |
3819 | return PTR_ERR(connkeys); | |
fffd0934 JB |
3820 | } |
3821 | ||
3822 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
fffd0934 JB |
3823 | if (err) |
3824 | kfree(connkeys); | |
b23aa676 SO |
3825 | return err; |
3826 | } | |
3827 | ||
3828 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
3829 | { | |
4c476991 JB |
3830 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3831 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3832 | u16 reason; |
3833 | ||
3834 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3835 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
3836 | else | |
3837 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
3838 | ||
3839 | if (reason == 0) | |
3840 | return -EINVAL; | |
3841 | ||
074ac8df | 3842 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3843 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3844 | return -EOPNOTSUPP; | |
b23aa676 | 3845 | |
4c476991 | 3846 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
3847 | } |
3848 | ||
463d0183 JB |
3849 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
3850 | { | |
4c476991 | 3851 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
3852 | struct net *net; |
3853 | int err; | |
3854 | u32 pid; | |
3855 | ||
3856 | if (!info->attrs[NL80211_ATTR_PID]) | |
3857 | return -EINVAL; | |
3858 | ||
3859 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
3860 | ||
463d0183 | 3861 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
3862 | if (IS_ERR(net)) |
3863 | return PTR_ERR(net); | |
463d0183 JB |
3864 | |
3865 | err = 0; | |
3866 | ||
3867 | /* check if anything to do */ | |
4c476991 JB |
3868 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
3869 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 3870 | |
463d0183 | 3871 | put_net(net); |
463d0183 JB |
3872 | return err; |
3873 | } | |
3874 | ||
67fbb16b SO |
3875 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
3876 | { | |
4c476991 | 3877 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
3878 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
3879 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 3880 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
3881 | struct cfg80211_pmksa pmksa; |
3882 | ||
3883 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
3884 | ||
3885 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3886 | return -EINVAL; | |
3887 | ||
3888 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
3889 | return -EINVAL; | |
3890 | ||
67fbb16b SO |
3891 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
3892 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3893 | ||
074ac8df | 3894 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3895 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3896 | return -EOPNOTSUPP; | |
67fbb16b SO |
3897 | |
3898 | switch (info->genlhdr->cmd) { | |
3899 | case NL80211_CMD_SET_PMKSA: | |
3900 | rdev_ops = rdev->ops->set_pmksa; | |
3901 | break; | |
3902 | case NL80211_CMD_DEL_PMKSA: | |
3903 | rdev_ops = rdev->ops->del_pmksa; | |
3904 | break; | |
3905 | default: | |
3906 | WARN_ON(1); | |
3907 | break; | |
3908 | } | |
3909 | ||
4c476991 JB |
3910 | if (!rdev_ops) |
3911 | return -EOPNOTSUPP; | |
67fbb16b | 3912 | |
4c476991 | 3913 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
3914 | } |
3915 | ||
3916 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
3917 | { | |
4c476991 JB |
3918 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3919 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 3920 | |
074ac8df | 3921 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3922 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3923 | return -EOPNOTSUPP; | |
67fbb16b | 3924 | |
4c476991 JB |
3925 | if (!rdev->ops->flush_pmksa) |
3926 | return -EOPNOTSUPP; | |
67fbb16b | 3927 | |
4c476991 | 3928 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
3929 | } |
3930 | ||
9588bbd5 JM |
3931 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
3932 | struct genl_info *info) | |
3933 | { | |
4c476991 JB |
3934 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3935 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
3936 | struct ieee80211_channel *chan; |
3937 | struct sk_buff *msg; | |
3938 | void *hdr; | |
3939 | u64 cookie; | |
3940 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
3941 | u32 freq, duration; | |
3942 | int err; | |
3943 | ||
3944 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3945 | !info->attrs[NL80211_ATTR_DURATION]) | |
3946 | return -EINVAL; | |
3947 | ||
3948 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
3949 | ||
3950 | /* | |
3951 | * We should be on that channel for at least one jiffie, | |
3952 | * and more than 5 seconds seems excessive. | |
3953 | */ | |
3954 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
3955 | return -EINVAL; | |
3956 | ||
4c476991 JB |
3957 | if (!rdev->ops->remain_on_channel) |
3958 | return -EOPNOTSUPP; | |
9588bbd5 | 3959 | |
9588bbd5 JM |
3960 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
3961 | channel_type = nla_get_u32( | |
3962 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
3963 | if (channel_type != NL80211_CHAN_NO_HT && | |
3964 | channel_type != NL80211_CHAN_HT20 && | |
3965 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
3966 | channel_type != NL80211_CHAN_HT40MINUS) |
3967 | return -EINVAL; | |
9588bbd5 JM |
3968 | } |
3969 | ||
3970 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
3971 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
3972 | if (chan == NULL) |
3973 | return -EINVAL; | |
9588bbd5 JM |
3974 | |
3975 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
3976 | if (!msg) |
3977 | return -ENOMEM; | |
9588bbd5 JM |
3978 | |
3979 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
3980 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
3981 | ||
3982 | if (IS_ERR(hdr)) { | |
3983 | err = PTR_ERR(hdr); | |
3984 | goto free_msg; | |
3985 | } | |
3986 | ||
3987 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
3988 | channel_type, duration, &cookie); | |
3989 | ||
3990 | if (err) | |
3991 | goto free_msg; | |
3992 | ||
3993 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
3994 | ||
3995 | genlmsg_end(msg, hdr); | |
4c476991 JB |
3996 | |
3997 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
3998 | |
3999 | nla_put_failure: | |
4000 | err = -ENOBUFS; | |
4001 | free_msg: | |
4002 | nlmsg_free(msg); | |
9588bbd5 JM |
4003 | return err; |
4004 | } | |
4005 | ||
4006 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4007 | struct genl_info *info) | |
4008 | { | |
4c476991 JB |
4009 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4010 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 4011 | u64 cookie; |
9588bbd5 JM |
4012 | |
4013 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4014 | return -EINVAL; | |
4015 | ||
4c476991 JB |
4016 | if (!rdev->ops->cancel_remain_on_channel) |
4017 | return -EOPNOTSUPP; | |
9588bbd5 | 4018 | |
9588bbd5 JM |
4019 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
4020 | ||
4c476991 | 4021 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
4022 | } |
4023 | ||
13ae75b1 JM |
4024 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4025 | u8 *rates, u8 rates_len) | |
4026 | { | |
4027 | u8 i; | |
4028 | u32 mask = 0; | |
4029 | ||
4030 | for (i = 0; i < rates_len; i++) { | |
4031 | int rate = (rates[i] & 0x7f) * 5; | |
4032 | int ridx; | |
4033 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4034 | struct ieee80211_rate *srate = | |
4035 | &sband->bitrates[ridx]; | |
4036 | if (rate == srate->bitrate) { | |
4037 | mask |= 1 << ridx; | |
4038 | break; | |
4039 | } | |
4040 | } | |
4041 | if (ridx == sband->n_bitrates) | |
4042 | return 0; /* rate not found */ | |
4043 | } | |
4044 | ||
4045 | return mask; | |
4046 | } | |
4047 | ||
b54452b0 | 4048 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4049 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4050 | .len = NL80211_MAX_SUPP_RATES }, | |
4051 | }; | |
4052 | ||
4053 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4054 | struct genl_info *info) | |
4055 | { | |
4056 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 4057 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 4058 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
4059 | int rem, i; |
4060 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
4061 | struct nlattr *tx_rates; |
4062 | struct ieee80211_supported_band *sband; | |
4063 | ||
4064 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4065 | return -EINVAL; | |
4066 | ||
4c476991 JB |
4067 | if (!rdev->ops->set_bitrate_mask) |
4068 | return -EOPNOTSUPP; | |
13ae75b1 JM |
4069 | |
4070 | memset(&mask, 0, sizeof(mask)); | |
4071 | /* Default to all rates enabled */ | |
4072 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4073 | sband = rdev->wiphy.bands[i]; | |
4074 | mask.control[i].legacy = | |
4075 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4076 | } | |
4077 | ||
4078 | /* | |
4079 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4080 | * directly to the enum ieee80211_band values used in cfg80211. | |
4081 | */ | |
4082 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4083 | { | |
4084 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
4085 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
4086 | return -EINVAL; | |
13ae75b1 | 4087 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
4088 | if (sband == NULL) |
4089 | return -EINVAL; | |
13ae75b1 JM |
4090 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
4091 | nla_len(tx_rates), nl80211_txattr_policy); | |
4092 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4093 | mask.control[band].legacy = rateset_to_mask( | |
4094 | sband, | |
4095 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4096 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4c476991 JB |
4097 | if (mask.control[band].legacy == 0) |
4098 | return -EINVAL; | |
13ae75b1 JM |
4099 | } |
4100 | } | |
4101 | ||
4c476991 | 4102 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
4103 | } |
4104 | ||
2e161f78 | 4105 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4106 | { |
4c476991 JB |
4107 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4108 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 4109 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4110 | |
4111 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4112 | return -EINVAL; | |
4113 | ||
2e161f78 JB |
4114 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4115 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
026331c4 | 4116 | |
9d38d85d | 4117 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4118 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4119 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4120 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4121 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4122 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4123 | return -EOPNOTSUPP; | |
026331c4 JM |
4124 | |
4125 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
4126 | if (!rdev->ops->mgmt_tx) |
4127 | return -EOPNOTSUPP; | |
026331c4 | 4128 | |
4c476991 | 4129 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 4130 | frame_type, |
026331c4 JM |
4131 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4132 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
4133 | } |
4134 | ||
2e161f78 | 4135 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4136 | { |
4c476991 JB |
4137 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4138 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
4139 | struct ieee80211_channel *chan; |
4140 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4141 | bool channel_type_valid = false; |
026331c4 JM |
4142 | u32 freq; |
4143 | int err; | |
4144 | void *hdr; | |
4145 | u64 cookie; | |
4146 | struct sk_buff *msg; | |
4147 | ||
4148 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4149 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4150 | return -EINVAL; | |
4151 | ||
4c476991 JB |
4152 | if (!rdev->ops->mgmt_tx) |
4153 | return -EOPNOTSUPP; | |
026331c4 | 4154 | |
9d38d85d | 4155 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4156 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4157 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4158 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4159 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4160 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4161 | return -EOPNOTSUPP; | |
026331c4 | 4162 | |
026331c4 JM |
4163 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4164 | channel_type = nla_get_u32( | |
4165 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4166 | if (channel_type != NL80211_CHAN_NO_HT && | |
4167 | channel_type != NL80211_CHAN_HT20 && | |
4168 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4169 | channel_type != NL80211_CHAN_HT40MINUS) |
4170 | return -EINVAL; | |
252aa631 | 4171 | channel_type_valid = true; |
026331c4 JM |
4172 | } |
4173 | ||
4174 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4175 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4176 | if (chan == NULL) |
4177 | return -EINVAL; | |
026331c4 JM |
4178 | |
4179 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4180 | if (!msg) |
4181 | return -ENOMEM; | |
026331c4 JM |
4182 | |
4183 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4184 | NL80211_CMD_FRAME); |
026331c4 JM |
4185 | |
4186 | if (IS_ERR(hdr)) { | |
4187 | err = PTR_ERR(hdr); | |
4188 | goto free_msg; | |
4189 | } | |
2e161f78 JB |
4190 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type, |
4191 | channel_type_valid, | |
4192 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4193 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4194 | &cookie); | |
026331c4 JM |
4195 | if (err) |
4196 | goto free_msg; | |
4197 | ||
4198 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4199 | ||
4200 | genlmsg_end(msg, hdr); | |
4c476991 | 4201 | return genlmsg_reply(msg, info); |
026331c4 JM |
4202 | |
4203 | nla_put_failure: | |
4204 | err = -ENOBUFS; | |
4205 | free_msg: | |
4206 | nlmsg_free(msg); | |
026331c4 JM |
4207 | return err; |
4208 | } | |
4209 | ||
ffb9eb3d KV |
4210 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4211 | { | |
4c476991 | 4212 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 4213 | struct wireless_dev *wdev; |
4c476991 | 4214 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4215 | u8 ps_state; |
4216 | bool state; | |
4217 | int err; | |
4218 | ||
4c476991 JB |
4219 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
4220 | return -EINVAL; | |
ffb9eb3d KV |
4221 | |
4222 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4223 | ||
4c476991 JB |
4224 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
4225 | return -EINVAL; | |
ffb9eb3d KV |
4226 | |
4227 | wdev = dev->ieee80211_ptr; | |
4228 | ||
4c476991 JB |
4229 | if (!rdev->ops->set_power_mgmt) |
4230 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4231 | |
4232 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4233 | ||
4234 | if (state == wdev->ps) | |
4c476991 | 4235 | return 0; |
ffb9eb3d | 4236 | |
4c476991 JB |
4237 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
4238 | wdev->ps_timeout); | |
4239 | if (!err) | |
4240 | wdev->ps = state; | |
ffb9eb3d KV |
4241 | return err; |
4242 | } | |
4243 | ||
4244 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4245 | { | |
4c476991 | 4246 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
4247 | enum nl80211_ps_state ps_state; |
4248 | struct wireless_dev *wdev; | |
4c476991 | 4249 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4250 | struct sk_buff *msg; |
4251 | void *hdr; | |
4252 | int err; | |
4253 | ||
ffb9eb3d KV |
4254 | wdev = dev->ieee80211_ptr; |
4255 | ||
4c476991 JB |
4256 | if (!rdev->ops->set_power_mgmt) |
4257 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4258 | |
4259 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4260 | if (!msg) |
4261 | return -ENOMEM; | |
ffb9eb3d KV |
4262 | |
4263 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4264 | NL80211_CMD_GET_POWER_SAVE); | |
4265 | if (!hdr) { | |
4c476991 | 4266 | err = -ENOBUFS; |
ffb9eb3d KV |
4267 | goto free_msg; |
4268 | } | |
4269 | ||
4270 | if (wdev->ps) | |
4271 | ps_state = NL80211_PS_ENABLED; | |
4272 | else | |
4273 | ps_state = NL80211_PS_DISABLED; | |
4274 | ||
4275 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4276 | ||
4277 | genlmsg_end(msg, hdr); | |
4c476991 | 4278 | return genlmsg_reply(msg, info); |
ffb9eb3d | 4279 | |
4c476991 | 4280 | nla_put_failure: |
ffb9eb3d | 4281 | err = -ENOBUFS; |
4c476991 | 4282 | free_msg: |
ffb9eb3d | 4283 | nlmsg_free(msg); |
ffb9eb3d KV |
4284 | return err; |
4285 | } | |
4286 | ||
d6dc1a38 JO |
4287 | static struct nla_policy |
4288 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
4289 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
4290 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
4291 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
4292 | }; | |
4293 | ||
4294 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
4295 | s32 threshold, u32 hysteresis) | |
4296 | { | |
4c476991 | 4297 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 4298 | struct wireless_dev *wdev; |
4c476991 | 4299 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
4300 | |
4301 | if (threshold > 0) | |
4302 | return -EINVAL; | |
4303 | ||
d6dc1a38 JO |
4304 | wdev = dev->ieee80211_ptr; |
4305 | ||
4c476991 JB |
4306 | if (!rdev->ops->set_cqm_rssi_config) |
4307 | return -EOPNOTSUPP; | |
d6dc1a38 | 4308 | |
074ac8df | 4309 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4310 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4311 | return -EOPNOTSUPP; | |
d6dc1a38 | 4312 | |
4c476991 JB |
4313 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
4314 | threshold, hysteresis); | |
d6dc1a38 JO |
4315 | } |
4316 | ||
4317 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
4318 | { | |
4319 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
4320 | struct nlattr *cqm; | |
4321 | int err; | |
4322 | ||
4323 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
4324 | if (!cqm) { | |
4325 | err = -EINVAL; | |
4326 | goto out; | |
4327 | } | |
4328 | ||
4329 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
4330 | nl80211_attr_cqm_policy); | |
4331 | if (err) | |
4332 | goto out; | |
4333 | ||
4334 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
4335 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
4336 | s32 threshold; | |
4337 | u32 hysteresis; | |
4338 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
4339 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
4340 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
4341 | } else | |
4342 | err = -EINVAL; | |
4343 | ||
4344 | out: | |
4345 | return err; | |
4346 | } | |
4347 | ||
4c476991 JB |
4348 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
4349 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
4350 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
4351 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
4352 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
4353 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
4354 | |
4355 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4356 | struct genl_info *info) | |
4357 | { | |
4358 | struct cfg80211_registered_device *rdev; | |
4359 | struct net_device *dev; | |
4360 | int err; | |
4361 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
4362 | ||
4363 | if (rtnl) | |
4364 | rtnl_lock(); | |
4365 | ||
4366 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4367 | rdev = cfg80211_get_dev_from_info(info); | |
4368 | if (IS_ERR(rdev)) { | |
4369 | if (rtnl) | |
4370 | rtnl_unlock(); | |
4371 | return PTR_ERR(rdev); | |
4372 | } | |
4373 | info->user_ptr[0] = rdev; | |
4374 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
4375 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4376 | if (err) { | |
4377 | if (rtnl) | |
4378 | rtnl_unlock(); | |
4379 | return err; | |
4380 | } | |
41265714 JB |
4381 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
4382 | !netif_running(dev)) { | |
4383 | if (rtnl) | |
4384 | rtnl_unlock(); | |
4385 | return -ENETDOWN; | |
4386 | } | |
4c476991 JB |
4387 | info->user_ptr[0] = rdev; |
4388 | info->user_ptr[1] = dev; | |
4389 | } | |
4390 | ||
4391 | return 0; | |
4392 | } | |
4393 | ||
4394 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4395 | struct genl_info *info) | |
4396 | { | |
4397 | if (info->user_ptr[0]) | |
4398 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
4399 | if (info->user_ptr[1]) | |
4400 | dev_put(info->user_ptr[1]); | |
4401 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
4402 | rtnl_unlock(); | |
4403 | } | |
4404 | ||
55682965 JB |
4405 | static struct genl_ops nl80211_ops[] = { |
4406 | { | |
4407 | .cmd = NL80211_CMD_GET_WIPHY, | |
4408 | .doit = nl80211_get_wiphy, | |
4409 | .dumpit = nl80211_dump_wiphy, | |
4410 | .policy = nl80211_policy, | |
4411 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4412 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
4413 | }, |
4414 | { | |
4415 | .cmd = NL80211_CMD_SET_WIPHY, | |
4416 | .doit = nl80211_set_wiphy, | |
4417 | .policy = nl80211_policy, | |
4418 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 4419 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
4420 | }, |
4421 | { | |
4422 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4423 | .doit = nl80211_get_interface, | |
4424 | .dumpit = nl80211_dump_interface, | |
4425 | .policy = nl80211_policy, | |
4426 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4427 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
4428 | }, |
4429 | { | |
4430 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4431 | .doit = nl80211_set_interface, | |
4432 | .policy = nl80211_policy, | |
4433 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4434 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4435 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4436 | }, |
4437 | { | |
4438 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4439 | .doit = nl80211_new_interface, | |
4440 | .policy = nl80211_policy, | |
4441 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4442 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4443 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4444 | }, |
4445 | { | |
4446 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4447 | .doit = nl80211_del_interface, | |
4448 | .policy = nl80211_policy, | |
41ade00f | 4449 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4450 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4451 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4452 | }, |
4453 | { | |
4454 | .cmd = NL80211_CMD_GET_KEY, | |
4455 | .doit = nl80211_get_key, | |
4456 | .policy = nl80211_policy, | |
4457 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4458 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4459 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4460 | }, |
4461 | { | |
4462 | .cmd = NL80211_CMD_SET_KEY, | |
4463 | .doit = nl80211_set_key, | |
4464 | .policy = nl80211_policy, | |
4465 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4466 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4467 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4468 | }, |
4469 | { | |
4470 | .cmd = NL80211_CMD_NEW_KEY, | |
4471 | .doit = nl80211_new_key, | |
4472 | .policy = nl80211_policy, | |
4473 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4474 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4475 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4476 | }, |
4477 | { | |
4478 | .cmd = NL80211_CMD_DEL_KEY, | |
4479 | .doit = nl80211_del_key, | |
4480 | .policy = nl80211_policy, | |
55682965 | 4481 | .flags = GENL_ADMIN_PERM, |
41265714 | 4482 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4483 | NL80211_FLAG_NEED_RTNL, |
55682965 | 4484 | }, |
ed1b6cc7 JB |
4485 | { |
4486 | .cmd = NL80211_CMD_SET_BEACON, | |
4487 | .policy = nl80211_policy, | |
4488 | .flags = GENL_ADMIN_PERM, | |
4489 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4490 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4491 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4492 | }, |
4493 | { | |
4494 | .cmd = NL80211_CMD_NEW_BEACON, | |
4495 | .policy = nl80211_policy, | |
4496 | .flags = GENL_ADMIN_PERM, | |
4497 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4498 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4499 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4500 | }, |
4501 | { | |
4502 | .cmd = NL80211_CMD_DEL_BEACON, | |
4503 | .policy = nl80211_policy, | |
4504 | .flags = GENL_ADMIN_PERM, | |
4505 | .doit = nl80211_del_beacon, | |
4c476991 JB |
4506 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4507 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 | 4508 | }, |
5727ef1b JB |
4509 | { |
4510 | .cmd = NL80211_CMD_GET_STATION, | |
4511 | .doit = nl80211_get_station, | |
2ec600d6 | 4512 | .dumpit = nl80211_dump_station, |
5727ef1b | 4513 | .policy = nl80211_policy, |
4c476991 JB |
4514 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4515 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4516 | }, |
4517 | { | |
4518 | .cmd = NL80211_CMD_SET_STATION, | |
4519 | .doit = nl80211_set_station, | |
4520 | .policy = nl80211_policy, | |
4521 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4522 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4523 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4524 | }, |
4525 | { | |
4526 | .cmd = NL80211_CMD_NEW_STATION, | |
4527 | .doit = nl80211_new_station, | |
4528 | .policy = nl80211_policy, | |
4529 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4530 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4531 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
4532 | }, |
4533 | { | |
4534 | .cmd = NL80211_CMD_DEL_STATION, | |
4535 | .doit = nl80211_del_station, | |
4536 | .policy = nl80211_policy, | |
2ec600d6 | 4537 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4538 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4539 | NL80211_FLAG_NEED_RTNL, | |
2ec600d6 LCC |
4540 | }, |
4541 | { | |
4542 | .cmd = NL80211_CMD_GET_MPATH, | |
4543 | .doit = nl80211_get_mpath, | |
4544 | .dumpit = nl80211_dump_mpath, | |
4545 | .policy = nl80211_policy, | |
4546 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4547 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4548 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4549 | }, |
4550 | { | |
4551 | .cmd = NL80211_CMD_SET_MPATH, | |
4552 | .doit = nl80211_set_mpath, | |
4553 | .policy = nl80211_policy, | |
4554 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4555 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4556 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4557 | }, |
4558 | { | |
4559 | .cmd = NL80211_CMD_NEW_MPATH, | |
4560 | .doit = nl80211_new_mpath, | |
4561 | .policy = nl80211_policy, | |
4562 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4563 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4564 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4565 | }, |
4566 | { | |
4567 | .cmd = NL80211_CMD_DEL_MPATH, | |
4568 | .doit = nl80211_del_mpath, | |
4569 | .policy = nl80211_policy, | |
9f1ba906 | 4570 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4571 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4572 | NL80211_FLAG_NEED_RTNL, | |
9f1ba906 JM |
4573 | }, |
4574 | { | |
4575 | .cmd = NL80211_CMD_SET_BSS, | |
4576 | .doit = nl80211_set_bss, | |
4577 | .policy = nl80211_policy, | |
b2e1b302 | 4578 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4579 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4580 | NL80211_FLAG_NEED_RTNL, | |
b2e1b302 | 4581 | }, |
f130347c LR |
4582 | { |
4583 | .cmd = NL80211_CMD_GET_REG, | |
4584 | .doit = nl80211_get_reg, | |
4585 | .policy = nl80211_policy, | |
4586 | /* can be retrieved by unprivileged users */ | |
4587 | }, | |
b2e1b302 LR |
4588 | { |
4589 | .cmd = NL80211_CMD_SET_REG, | |
4590 | .doit = nl80211_set_reg, | |
4591 | .policy = nl80211_policy, | |
4592 | .flags = GENL_ADMIN_PERM, | |
4593 | }, | |
4594 | { | |
4595 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4596 | .doit = nl80211_req_set_reg, | |
4597 | .policy = nl80211_policy, | |
93da9cc1 | 4598 | .flags = GENL_ADMIN_PERM, |
4599 | }, | |
4600 | { | |
4601 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4602 | .doit = nl80211_get_mesh_params, | |
4603 | .policy = nl80211_policy, | |
4604 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4605 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4606 | NL80211_FLAG_NEED_RTNL, | |
93da9cc1 | 4607 | }, |
4608 | { | |
4609 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4610 | .doit = nl80211_set_mesh_params, | |
4611 | .policy = nl80211_policy, | |
9aed3cc1 | 4612 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4613 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4614 | NL80211_FLAG_NEED_RTNL, | |
9aed3cc1 | 4615 | }, |
2a519311 JB |
4616 | { |
4617 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4618 | .doit = nl80211_trigger_scan, | |
4619 | .policy = nl80211_policy, | |
4620 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4621 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4622 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
4623 | }, |
4624 | { | |
4625 | .cmd = NL80211_CMD_GET_SCAN, | |
4626 | .policy = nl80211_policy, | |
4627 | .dumpit = nl80211_dump_scan, | |
4628 | }, | |
636a5d36 JM |
4629 | { |
4630 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4631 | .doit = nl80211_authenticate, | |
4632 | .policy = nl80211_policy, | |
4633 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4634 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4635 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4636 | }, |
4637 | { | |
4638 | .cmd = NL80211_CMD_ASSOCIATE, | |
4639 | .doit = nl80211_associate, | |
4640 | .policy = nl80211_policy, | |
4641 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4642 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4643 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4644 | }, |
4645 | { | |
4646 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4647 | .doit = nl80211_deauthenticate, | |
4648 | .policy = nl80211_policy, | |
4649 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4650 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4651 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4652 | }, |
4653 | { | |
4654 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4655 | .doit = nl80211_disassociate, | |
4656 | .policy = nl80211_policy, | |
4657 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4658 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4659 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 4660 | }, |
04a773ad JB |
4661 | { |
4662 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4663 | .doit = nl80211_join_ibss, | |
4664 | .policy = nl80211_policy, | |
4665 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4666 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4667 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
4668 | }, |
4669 | { | |
4670 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4671 | .doit = nl80211_leave_ibss, | |
4672 | .policy = nl80211_policy, | |
4673 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4674 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4675 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 4676 | }, |
aff89a9b JB |
4677 | #ifdef CONFIG_NL80211_TESTMODE |
4678 | { | |
4679 | .cmd = NL80211_CMD_TESTMODE, | |
4680 | .doit = nl80211_testmode_do, | |
4681 | .policy = nl80211_policy, | |
4682 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4683 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4684 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
4685 | }, |
4686 | #endif | |
b23aa676 SO |
4687 | { |
4688 | .cmd = NL80211_CMD_CONNECT, | |
4689 | .doit = nl80211_connect, | |
4690 | .policy = nl80211_policy, | |
4691 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4692 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4693 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
4694 | }, |
4695 | { | |
4696 | .cmd = NL80211_CMD_DISCONNECT, | |
4697 | .doit = nl80211_disconnect, | |
4698 | .policy = nl80211_policy, | |
4699 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4700 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4701 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 4702 | }, |
463d0183 JB |
4703 | { |
4704 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
4705 | .doit = nl80211_wiphy_netns, | |
4706 | .policy = nl80211_policy, | |
4707 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4708 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4709 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 4710 | }, |
61fa713c HS |
4711 | { |
4712 | .cmd = NL80211_CMD_GET_SURVEY, | |
4713 | .policy = nl80211_policy, | |
4714 | .dumpit = nl80211_dump_survey, | |
4715 | }, | |
67fbb16b SO |
4716 | { |
4717 | .cmd = NL80211_CMD_SET_PMKSA, | |
4718 | .doit = nl80211_setdel_pmksa, | |
4719 | .policy = nl80211_policy, | |
4720 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4721 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4722 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4723 | }, |
4724 | { | |
4725 | .cmd = NL80211_CMD_DEL_PMKSA, | |
4726 | .doit = nl80211_setdel_pmksa, | |
4727 | .policy = nl80211_policy, | |
4728 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4729 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4730 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4731 | }, |
4732 | { | |
4733 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
4734 | .doit = nl80211_flush_pmksa, | |
4735 | .policy = nl80211_policy, | |
4736 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4737 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4738 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b | 4739 | }, |
9588bbd5 JM |
4740 | { |
4741 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
4742 | .doit = nl80211_remain_on_channel, | |
4743 | .policy = nl80211_policy, | |
4744 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4745 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4746 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
4747 | }, |
4748 | { | |
4749 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
4750 | .doit = nl80211_cancel_remain_on_channel, | |
4751 | .policy = nl80211_policy, | |
4752 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4753 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4754 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 4755 | }, |
13ae75b1 JM |
4756 | { |
4757 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
4758 | .doit = nl80211_set_tx_bitrate_mask, | |
4759 | .policy = nl80211_policy, | |
4760 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4761 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4762 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 4763 | }, |
026331c4 | 4764 | { |
2e161f78 JB |
4765 | .cmd = NL80211_CMD_REGISTER_FRAME, |
4766 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
4767 | .policy = nl80211_policy, |
4768 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4769 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4770 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
4771 | }, |
4772 | { | |
2e161f78 JB |
4773 | .cmd = NL80211_CMD_FRAME, |
4774 | .doit = nl80211_tx_mgmt, | |
026331c4 JM |
4775 | .policy = nl80211_policy, |
4776 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4777 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4778 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 4779 | }, |
ffb9eb3d KV |
4780 | { |
4781 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
4782 | .doit = nl80211_set_power_save, | |
4783 | .policy = nl80211_policy, | |
4784 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4785 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4786 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
4787 | }, |
4788 | { | |
4789 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
4790 | .doit = nl80211_get_power_save, | |
4791 | .policy = nl80211_policy, | |
4792 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4793 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4794 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 4795 | }, |
d6dc1a38 JO |
4796 | { |
4797 | .cmd = NL80211_CMD_SET_CQM, | |
4798 | .doit = nl80211_set_cqm, | |
4799 | .policy = nl80211_policy, | |
4800 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4801 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4802 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 4803 | }, |
f444de05 JB |
4804 | { |
4805 | .cmd = NL80211_CMD_SET_CHANNEL, | |
4806 | .doit = nl80211_set_channel, | |
4807 | .policy = nl80211_policy, | |
4808 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4809 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4810 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 4811 | }, |
e8347eba BJ |
4812 | { |
4813 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
4814 | .doit = nl80211_set_wds_peer, | |
4815 | .policy = nl80211_policy, | |
4816 | .flags = GENL_ADMIN_PERM, | |
4817 | }, | |
55682965 | 4818 | }; |
9588bbd5 | 4819 | |
6039f6d2 JM |
4820 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
4821 | .name = "mlme", | |
4822 | }; | |
55682965 JB |
4823 | |
4824 | /* multicast groups */ | |
4825 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
4826 | .name = "config", | |
4827 | }; | |
2a519311 JB |
4828 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
4829 | .name = "scan", | |
4830 | }; | |
73d54c9e LR |
4831 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
4832 | .name = "regulatory", | |
4833 | }; | |
55682965 JB |
4834 | |
4835 | /* notification functions */ | |
4836 | ||
4837 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
4838 | { | |
4839 | struct sk_buff *msg; | |
4840 | ||
fd2120ca | 4841 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
4842 | if (!msg) |
4843 | return; | |
4844 | ||
4845 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
4846 | nlmsg_free(msg); | |
4847 | return; | |
4848 | } | |
4849 | ||
463d0183 JB |
4850 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4851 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
4852 | } |
4853 | ||
362a415d JB |
4854 | static int nl80211_add_scan_req(struct sk_buff *msg, |
4855 | struct cfg80211_registered_device *rdev) | |
4856 | { | |
4857 | struct cfg80211_scan_request *req = rdev->scan_req; | |
4858 | struct nlattr *nest; | |
4859 | int i; | |
4860 | ||
667503dd JB |
4861 | ASSERT_RDEV_LOCK(rdev); |
4862 | ||
362a415d JB |
4863 | if (WARN_ON(!req)) |
4864 | return 0; | |
4865 | ||
4866 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
4867 | if (!nest) | |
4868 | goto nla_put_failure; | |
4869 | for (i = 0; i < req->n_ssids; i++) | |
4870 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
4871 | nla_nest_end(msg, nest); | |
4872 | ||
4873 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
4874 | if (!nest) | |
4875 | goto nla_put_failure; | |
4876 | for (i = 0; i < req->n_channels; i++) | |
4877 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
4878 | nla_nest_end(msg, nest); | |
4879 | ||
4880 | if (req->ie) | |
4881 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
4882 | ||
4883 | return 0; | |
4884 | nla_put_failure: | |
4885 | return -ENOBUFS; | |
4886 | } | |
4887 | ||
a538e2d5 JB |
4888 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
4889 | struct cfg80211_registered_device *rdev, | |
4890 | struct net_device *netdev, | |
4891 | u32 pid, u32 seq, int flags, | |
4892 | u32 cmd) | |
2a519311 JB |
4893 | { |
4894 | void *hdr; | |
4895 | ||
4896 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
4897 | if (!hdr) | |
4898 | return -1; | |
4899 | ||
b5850a7a | 4900 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
4901 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
4902 | ||
362a415d JB |
4903 | /* ignore errors and send incomplete event anyway */ |
4904 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
4905 | |
4906 | return genlmsg_end(msg, hdr); | |
4907 | ||
4908 | nla_put_failure: | |
4909 | genlmsg_cancel(msg, hdr); | |
4910 | return -EMSGSIZE; | |
4911 | } | |
4912 | ||
a538e2d5 JB |
4913 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
4914 | struct net_device *netdev) | |
4915 | { | |
4916 | struct sk_buff *msg; | |
4917 | ||
4918 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
4919 | if (!msg) | |
4920 | return; | |
4921 | ||
4922 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
4923 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
4924 | nlmsg_free(msg); | |
4925 | return; | |
4926 | } | |
4927 | ||
463d0183 JB |
4928 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4929 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
a538e2d5 JB |
4930 | } |
4931 | ||
2a519311 JB |
4932 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
4933 | struct net_device *netdev) | |
4934 | { | |
4935 | struct sk_buff *msg; | |
4936 | ||
fd2120ca | 4937 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4938 | if (!msg) |
4939 | return; | |
4940 | ||
a538e2d5 JB |
4941 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4942 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
4943 | nlmsg_free(msg); |
4944 | return; | |
4945 | } | |
4946 | ||
463d0183 JB |
4947 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4948 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
4949 | } |
4950 | ||
4951 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
4952 | struct net_device *netdev) | |
4953 | { | |
4954 | struct sk_buff *msg; | |
4955 | ||
fd2120ca | 4956 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4957 | if (!msg) |
4958 | return; | |
4959 | ||
a538e2d5 JB |
4960 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4961 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
4962 | nlmsg_free(msg); |
4963 | return; | |
4964 | } | |
4965 | ||
463d0183 JB |
4966 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4967 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
4968 | } |
4969 | ||
73d54c9e LR |
4970 | /* |
4971 | * This can happen on global regulatory changes or device specific settings | |
4972 | * based on custom world regulatory domains. | |
4973 | */ | |
4974 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
4975 | { | |
4976 | struct sk_buff *msg; | |
4977 | void *hdr; | |
4978 | ||
fd2120ca | 4979 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
4980 | if (!msg) |
4981 | return; | |
4982 | ||
4983 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
4984 | if (!hdr) { | |
4985 | nlmsg_free(msg); | |
4986 | return; | |
4987 | } | |
4988 | ||
4989 | /* Userspace can always count this one always being set */ | |
4990 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
4991 | ||
4992 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
4993 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4994 | NL80211_REGDOM_TYPE_WORLD); | |
4995 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
4996 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
4997 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
4998 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
4999 | request->intersect) | |
5000 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5001 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5002 | else { | |
5003 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5004 | NL80211_REGDOM_TYPE_COUNTRY); | |
5005 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5006 | } | |
5007 | ||
5008 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5009 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5010 | ||
5011 | if (genlmsg_end(msg, hdr) < 0) { | |
5012 | nlmsg_free(msg); | |
5013 | return; | |
5014 | } | |
5015 | ||
bc43b28c | 5016 | rcu_read_lock(); |
463d0183 | 5017 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5018 | GFP_ATOMIC); |
5019 | rcu_read_unlock(); | |
73d54c9e LR |
5020 | |
5021 | return; | |
5022 | ||
5023 | nla_put_failure: | |
5024 | genlmsg_cancel(msg, hdr); | |
5025 | nlmsg_free(msg); | |
5026 | } | |
5027 | ||
6039f6d2 JM |
5028 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5029 | struct net_device *netdev, | |
5030 | const u8 *buf, size_t len, | |
e6d6e342 | 5031 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5032 | { |
5033 | struct sk_buff *msg; | |
5034 | void *hdr; | |
5035 | ||
e6d6e342 | 5036 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5037 | if (!msg) |
5038 | return; | |
5039 | ||
5040 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5041 | if (!hdr) { | |
5042 | nlmsg_free(msg); | |
5043 | return; | |
5044 | } | |
5045 | ||
5046 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5047 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5048 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5049 | ||
5050 | if (genlmsg_end(msg, hdr) < 0) { | |
5051 | nlmsg_free(msg); | |
5052 | return; | |
5053 | } | |
5054 | ||
463d0183 JB |
5055 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5056 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5057 | return; |
5058 | ||
5059 | nla_put_failure: | |
5060 | genlmsg_cancel(msg, hdr); | |
5061 | nlmsg_free(msg); | |
5062 | } | |
5063 | ||
5064 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5065 | struct net_device *netdev, const u8 *buf, |
5066 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5067 | { |
5068 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5069 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5070 | } |
5071 | ||
5072 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5073 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5074 | size_t len, gfp_t gfp) |
6039f6d2 | 5075 | { |
e6d6e342 JB |
5076 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5077 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5078 | } |
5079 | ||
53b46b84 | 5080 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5081 | struct net_device *netdev, const u8 *buf, |
5082 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5083 | { |
5084 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5085 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5086 | } |
5087 | ||
53b46b84 JM |
5088 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5089 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5090 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5091 | { |
5092 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5093 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5094 | } |
5095 | ||
1b06bb40 LR |
5096 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5097 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5098 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5099 | { |
5100 | struct sk_buff *msg; | |
5101 | void *hdr; | |
5102 | ||
e6d6e342 | 5103 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5104 | if (!msg) |
5105 | return; | |
5106 | ||
5107 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5108 | if (!hdr) { | |
5109 | nlmsg_free(msg); | |
5110 | return; | |
5111 | } | |
5112 | ||
5113 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5114 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5115 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5116 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5117 | ||
5118 | if (genlmsg_end(msg, hdr) < 0) { | |
5119 | nlmsg_free(msg); | |
5120 | return; | |
5121 | } | |
5122 | ||
463d0183 JB |
5123 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5124 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5125 | return; |
5126 | ||
5127 | nla_put_failure: | |
5128 | genlmsg_cancel(msg, hdr); | |
5129 | nlmsg_free(msg); | |
5130 | } | |
5131 | ||
5132 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5133 | struct net_device *netdev, const u8 *addr, |
5134 | gfp_t gfp) | |
1965c853 JM |
5135 | { |
5136 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5137 | addr, gfp); |
1965c853 JM |
5138 | } |
5139 | ||
5140 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5141 | struct net_device *netdev, const u8 *addr, |
5142 | gfp_t gfp) | |
1965c853 | 5143 | { |
e6d6e342 JB |
5144 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5145 | addr, gfp); | |
1965c853 JM |
5146 | } |
5147 | ||
b23aa676 SO |
5148 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5149 | struct net_device *netdev, const u8 *bssid, | |
5150 | const u8 *req_ie, size_t req_ie_len, | |
5151 | const u8 *resp_ie, size_t resp_ie_len, | |
5152 | u16 status, gfp_t gfp) | |
5153 | { | |
5154 | struct sk_buff *msg; | |
5155 | void *hdr; | |
5156 | ||
5157 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5158 | if (!msg) | |
5159 | return; | |
5160 | ||
5161 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5162 | if (!hdr) { | |
5163 | nlmsg_free(msg); | |
5164 | return; | |
5165 | } | |
5166 | ||
5167 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5168 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5169 | if (bssid) | |
5170 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5171 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5172 | if (req_ie) | |
5173 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5174 | if (resp_ie) | |
5175 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5176 | ||
5177 | if (genlmsg_end(msg, hdr) < 0) { | |
5178 | nlmsg_free(msg); | |
5179 | return; | |
5180 | } | |
5181 | ||
463d0183 JB |
5182 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5183 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5184 | return; |
5185 | ||
5186 | nla_put_failure: | |
5187 | genlmsg_cancel(msg, hdr); | |
5188 | nlmsg_free(msg); | |
5189 | ||
5190 | } | |
5191 | ||
5192 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5193 | struct net_device *netdev, const u8 *bssid, | |
5194 | const u8 *req_ie, size_t req_ie_len, | |
5195 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5196 | { | |
5197 | struct sk_buff *msg; | |
5198 | void *hdr; | |
5199 | ||
5200 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5201 | if (!msg) | |
5202 | return; | |
5203 | ||
5204 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5205 | if (!hdr) { | |
5206 | nlmsg_free(msg); | |
5207 | return; | |
5208 | } | |
5209 | ||
5210 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5211 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5212 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5213 | if (req_ie) | |
5214 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5215 | if (resp_ie) | |
5216 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5217 | ||
5218 | if (genlmsg_end(msg, hdr) < 0) { | |
5219 | nlmsg_free(msg); | |
5220 | return; | |
5221 | } | |
5222 | ||
463d0183 JB |
5223 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5224 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5225 | return; |
5226 | ||
5227 | nla_put_failure: | |
5228 | genlmsg_cancel(msg, hdr); | |
5229 | nlmsg_free(msg); | |
5230 | ||
5231 | } | |
5232 | ||
5233 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5234 | struct net_device *netdev, u16 reason, | |
667503dd | 5235 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5236 | { |
5237 | struct sk_buff *msg; | |
5238 | void *hdr; | |
5239 | ||
667503dd | 5240 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5241 | if (!msg) |
5242 | return; | |
5243 | ||
5244 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5245 | if (!hdr) { | |
5246 | nlmsg_free(msg); | |
5247 | return; | |
5248 | } | |
5249 | ||
5250 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5251 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5252 | if (from_ap && reason) | |
5253 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5254 | if (from_ap) | |
5255 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5256 | if (ie) | |
5257 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5258 | ||
5259 | if (genlmsg_end(msg, hdr) < 0) { | |
5260 | nlmsg_free(msg); | |
5261 | return; | |
5262 | } | |
5263 | ||
463d0183 JB |
5264 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5265 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5266 | return; |
5267 | ||
5268 | nla_put_failure: | |
5269 | genlmsg_cancel(msg, hdr); | |
5270 | nlmsg_free(msg); | |
5271 | ||
5272 | } | |
5273 | ||
04a773ad JB |
5274 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5275 | struct net_device *netdev, const u8 *bssid, | |
5276 | gfp_t gfp) | |
5277 | { | |
5278 | struct sk_buff *msg; | |
5279 | void *hdr; | |
5280 | ||
fd2120ca | 5281 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5282 | if (!msg) |
5283 | return; | |
5284 | ||
5285 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5286 | if (!hdr) { | |
5287 | nlmsg_free(msg); | |
5288 | return; | |
5289 | } | |
5290 | ||
5291 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5292 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5293 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5294 | ||
5295 | if (genlmsg_end(msg, hdr) < 0) { | |
5296 | nlmsg_free(msg); | |
5297 | return; | |
5298 | } | |
5299 | ||
463d0183 JB |
5300 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5301 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5302 | return; |
5303 | ||
5304 | nla_put_failure: | |
5305 | genlmsg_cancel(msg, hdr); | |
5306 | nlmsg_free(msg); | |
5307 | } | |
5308 | ||
a3b8b056 JM |
5309 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5310 | struct net_device *netdev, const u8 *addr, | |
5311 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5312 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5313 | { |
5314 | struct sk_buff *msg; | |
5315 | void *hdr; | |
5316 | ||
e6d6e342 | 5317 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5318 | if (!msg) |
5319 | return; | |
5320 | ||
5321 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5322 | if (!hdr) { | |
5323 | nlmsg_free(msg); | |
5324 | return; | |
5325 | } | |
5326 | ||
5327 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5328 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5329 | if (addr) | |
5330 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5331 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5332 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5333 | if (tsc) | |
5334 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5335 | ||
5336 | if (genlmsg_end(msg, hdr) < 0) { | |
5337 | nlmsg_free(msg); | |
5338 | return; | |
5339 | } | |
5340 | ||
463d0183 JB |
5341 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5342 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5343 | return; |
5344 | ||
5345 | nla_put_failure: | |
5346 | genlmsg_cancel(msg, hdr); | |
5347 | nlmsg_free(msg); | |
5348 | } | |
5349 | ||
6bad8766 LR |
5350 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5351 | struct ieee80211_channel *channel_before, | |
5352 | struct ieee80211_channel *channel_after) | |
5353 | { | |
5354 | struct sk_buff *msg; | |
5355 | void *hdr; | |
5356 | struct nlattr *nl_freq; | |
5357 | ||
fd2120ca | 5358 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5359 | if (!msg) |
5360 | return; | |
5361 | ||
5362 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5363 | if (!hdr) { | |
5364 | nlmsg_free(msg); | |
5365 | return; | |
5366 | } | |
5367 | ||
5368 | /* | |
5369 | * Since we are applying the beacon hint to a wiphy we know its | |
5370 | * wiphy_idx is valid | |
5371 | */ | |
5372 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5373 | ||
5374 | /* Before */ | |
5375 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5376 | if (!nl_freq) | |
5377 | goto nla_put_failure; | |
5378 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5379 | goto nla_put_failure; | |
5380 | nla_nest_end(msg, nl_freq); | |
5381 | ||
5382 | /* After */ | |
5383 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5384 | if (!nl_freq) | |
5385 | goto nla_put_failure; | |
5386 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5387 | goto nla_put_failure; | |
5388 | nla_nest_end(msg, nl_freq); | |
5389 | ||
5390 | if (genlmsg_end(msg, hdr) < 0) { | |
5391 | nlmsg_free(msg); | |
5392 | return; | |
5393 | } | |
5394 | ||
463d0183 JB |
5395 | rcu_read_lock(); |
5396 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5397 | GFP_ATOMIC); | |
5398 | rcu_read_unlock(); | |
6bad8766 LR |
5399 | |
5400 | return; | |
5401 | ||
5402 | nla_put_failure: | |
5403 | genlmsg_cancel(msg, hdr); | |
5404 | nlmsg_free(msg); | |
5405 | } | |
5406 | ||
9588bbd5 JM |
5407 | static void nl80211_send_remain_on_chan_event( |
5408 | int cmd, struct cfg80211_registered_device *rdev, | |
5409 | struct net_device *netdev, u64 cookie, | |
5410 | struct ieee80211_channel *chan, | |
5411 | enum nl80211_channel_type channel_type, | |
5412 | unsigned int duration, gfp_t gfp) | |
5413 | { | |
5414 | struct sk_buff *msg; | |
5415 | void *hdr; | |
5416 | ||
5417 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5418 | if (!msg) | |
5419 | return; | |
5420 | ||
5421 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5422 | if (!hdr) { | |
5423 | nlmsg_free(msg); | |
5424 | return; | |
5425 | } | |
5426 | ||
5427 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5428 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5429 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5430 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5431 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5432 | ||
5433 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5434 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5435 | ||
5436 | if (genlmsg_end(msg, hdr) < 0) { | |
5437 | nlmsg_free(msg); | |
5438 | return; | |
5439 | } | |
5440 | ||
5441 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5442 | nl80211_mlme_mcgrp.id, gfp); | |
5443 | return; | |
5444 | ||
5445 | nla_put_failure: | |
5446 | genlmsg_cancel(msg, hdr); | |
5447 | nlmsg_free(msg); | |
5448 | } | |
5449 | ||
5450 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5451 | struct net_device *netdev, u64 cookie, | |
5452 | struct ieee80211_channel *chan, | |
5453 | enum nl80211_channel_type channel_type, | |
5454 | unsigned int duration, gfp_t gfp) | |
5455 | { | |
5456 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5457 | rdev, netdev, cookie, chan, | |
5458 | channel_type, duration, gfp); | |
5459 | } | |
5460 | ||
5461 | void nl80211_send_remain_on_channel_cancel( | |
5462 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5463 | u64 cookie, struct ieee80211_channel *chan, | |
5464 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5465 | { | |
5466 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5467 | rdev, netdev, cookie, chan, | |
5468 | channel_type, 0, gfp); | |
5469 | } | |
5470 | ||
98b62183 JB |
5471 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5472 | struct net_device *dev, const u8 *mac_addr, | |
5473 | struct station_info *sinfo, gfp_t gfp) | |
5474 | { | |
5475 | struct sk_buff *msg; | |
5476 | ||
5477 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5478 | if (!msg) | |
5479 | return; | |
5480 | ||
5481 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5482 | nlmsg_free(msg); | |
5483 | return; | |
5484 | } | |
5485 | ||
5486 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5487 | nl80211_mlme_mcgrp.id, gfp); | |
5488 | } | |
5489 | ||
2e161f78 JB |
5490 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
5491 | struct net_device *netdev, u32 nlpid, | |
5492 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
5493 | { |
5494 | struct sk_buff *msg; | |
5495 | void *hdr; | |
5496 | int err; | |
5497 | ||
5498 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5499 | if (!msg) | |
5500 | return -ENOMEM; | |
5501 | ||
2e161f78 | 5502 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
5503 | if (!hdr) { |
5504 | nlmsg_free(msg); | |
5505 | return -ENOMEM; | |
5506 | } | |
5507 | ||
5508 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5509 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5510 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5511 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5512 | ||
5513 | err = genlmsg_end(msg, hdr); | |
5514 | if (err < 0) { | |
5515 | nlmsg_free(msg); | |
5516 | return err; | |
5517 | } | |
5518 | ||
5519 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5520 | if (err < 0) | |
5521 | return err; | |
5522 | return 0; | |
5523 | ||
5524 | nla_put_failure: | |
5525 | genlmsg_cancel(msg, hdr); | |
5526 | nlmsg_free(msg); | |
5527 | return -ENOBUFS; | |
5528 | } | |
5529 | ||
2e161f78 JB |
5530 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
5531 | struct net_device *netdev, u64 cookie, | |
5532 | const u8 *buf, size_t len, bool ack, | |
5533 | gfp_t gfp) | |
026331c4 JM |
5534 | { |
5535 | struct sk_buff *msg; | |
5536 | void *hdr; | |
5537 | ||
5538 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5539 | if (!msg) | |
5540 | return; | |
5541 | ||
2e161f78 | 5542 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
5543 | if (!hdr) { |
5544 | nlmsg_free(msg); | |
5545 | return; | |
5546 | } | |
5547 | ||
5548 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5549 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5550 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5551 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5552 | if (ack) | |
5553 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
5554 | ||
5555 | if (genlmsg_end(msg, hdr) < 0) { | |
5556 | nlmsg_free(msg); | |
5557 | return; | |
5558 | } | |
5559 | ||
5560 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
5561 | return; | |
5562 | ||
5563 | nla_put_failure: | |
5564 | genlmsg_cancel(msg, hdr); | |
5565 | nlmsg_free(msg); | |
5566 | } | |
5567 | ||
d6dc1a38 JO |
5568 | void |
5569 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
5570 | struct net_device *netdev, | |
5571 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
5572 | gfp_t gfp) | |
5573 | { | |
5574 | struct sk_buff *msg; | |
5575 | struct nlattr *pinfoattr; | |
5576 | void *hdr; | |
5577 | ||
5578 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5579 | if (!msg) | |
5580 | return; | |
5581 | ||
5582 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5583 | if (!hdr) { | |
5584 | nlmsg_free(msg); | |
5585 | return; | |
5586 | } | |
5587 | ||
5588 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5589 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5590 | ||
5591 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5592 | if (!pinfoattr) | |
5593 | goto nla_put_failure; | |
5594 | ||
5595 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
5596 | rssi_event); | |
5597 | ||
5598 | nla_nest_end(msg, pinfoattr); | |
5599 | ||
5600 | if (genlmsg_end(msg, hdr) < 0) { | |
5601 | nlmsg_free(msg); | |
5602 | return; | |
5603 | } | |
5604 | ||
5605 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5606 | nl80211_mlme_mcgrp.id, gfp); | |
5607 | return; | |
5608 | ||
5609 | nla_put_failure: | |
5610 | genlmsg_cancel(msg, hdr); | |
5611 | nlmsg_free(msg); | |
5612 | } | |
5613 | ||
026331c4 JM |
5614 | static int nl80211_netlink_notify(struct notifier_block * nb, |
5615 | unsigned long state, | |
5616 | void *_notify) | |
5617 | { | |
5618 | struct netlink_notify *notify = _notify; | |
5619 | struct cfg80211_registered_device *rdev; | |
5620 | struct wireless_dev *wdev; | |
5621 | ||
5622 | if (state != NETLINK_URELEASE) | |
5623 | return NOTIFY_DONE; | |
5624 | ||
5625 | rcu_read_lock(); | |
5626 | ||
5627 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
5628 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 5629 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
5630 | |
5631 | rcu_read_unlock(); | |
5632 | ||
5633 | return NOTIFY_DONE; | |
5634 | } | |
5635 | ||
5636 | static struct notifier_block nl80211_netlink_notifier = { | |
5637 | .notifier_call = nl80211_netlink_notify, | |
5638 | }; | |
5639 | ||
55682965 JB |
5640 | /* initialisation/exit functions */ |
5641 | ||
5642 | int nl80211_init(void) | |
5643 | { | |
0d63cbb5 | 5644 | int err; |
55682965 | 5645 | |
0d63cbb5 MM |
5646 | err = genl_register_family_with_ops(&nl80211_fam, |
5647 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5648 | if (err) |
5649 | return err; | |
5650 | ||
55682965 JB |
5651 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5652 | if (err) | |
5653 | goto err_out; | |
5654 | ||
2a519311 JB |
5655 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5656 | if (err) | |
5657 | goto err_out; | |
5658 | ||
73d54c9e LR |
5659 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5660 | if (err) | |
5661 | goto err_out; | |
5662 | ||
6039f6d2 JM |
5663 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5664 | if (err) | |
5665 | goto err_out; | |
5666 | ||
aff89a9b JB |
5667 | #ifdef CONFIG_NL80211_TESTMODE |
5668 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5669 | if (err) | |
5670 | goto err_out; | |
5671 | #endif | |
5672 | ||
026331c4 JM |
5673 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
5674 | if (err) | |
5675 | goto err_out; | |
5676 | ||
55682965 JB |
5677 | return 0; |
5678 | err_out: | |
5679 | genl_unregister_family(&nl80211_fam); | |
5680 | return err; | |
5681 | } | |
5682 | ||
5683 | void nl80211_exit(void) | |
5684 | { | |
026331c4 | 5685 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
5686 | genl_unregister_family(&nl80211_fam); |
5687 | } |