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 }, |
e31b8213 | 96 | [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 }, |
ed1b6cc7 JB |
97 | |
98 | [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 }, | |
99 | [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 }, | |
100 | [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY, | |
101 | .len = IEEE80211_MAX_DATA_LEN }, | |
102 | [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY, | |
103 | .len = IEEE80211_MAX_DATA_LEN }, | |
5727ef1b JB |
104 | [NL80211_ATTR_STA_AID] = { .type = NLA_U16 }, |
105 | [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED }, | |
106 | [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, | |
107 | [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, | |
108 | .len = NL80211_MAX_SUPP_RATES }, | |
2ec600d6 | 109 | [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, |
5727ef1b | 110 | [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, |
0a9542ee | 111 | [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ }, |
2ec600d6 LCC |
112 | [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, |
113 | .len = IEEE80211_MAX_MESH_ID_LEN }, | |
114 | [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, | |
9f1ba906 | 115 | |
b2e1b302 LR |
116 | [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 }, |
117 | [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED }, | |
118 | ||
9f1ba906 JM |
119 | [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 }, |
120 | [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 }, | |
121 | [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 }, | |
90c97a04 JM |
122 | [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY, |
123 | .len = NL80211_MAX_SUPP_RATES }, | |
36aedc90 | 124 | |
93da9cc1 | 125 | [NL80211_ATTR_MESH_PARAMS] = { .type = NLA_NESTED }, |
126 | ||
36aedc90 JM |
127 | [NL80211_ATTR_HT_CAPABILITY] = { .type = NLA_BINARY, |
128 | .len = NL80211_HT_CAPABILITY_LEN }, | |
9aed3cc1 JM |
129 | |
130 | [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 }, | |
131 | [NL80211_ATTR_IE] = { .type = NLA_BINARY, | |
132 | .len = IEEE80211_MAX_DATA_LEN }, | |
2a519311 JB |
133 | [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED }, |
134 | [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED }, | |
636a5d36 JM |
135 | |
136 | [NL80211_ATTR_SSID] = { .type = NLA_BINARY, | |
137 | .len = IEEE80211_MAX_SSID_LEN }, | |
138 | [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 }, | |
139 | [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, | |
04a773ad | 140 | [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, |
1965c853 | 141 | [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, |
dc6382ce | 142 | [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, |
eccb8e8f JB |
143 | [NL80211_ATTR_STA_FLAGS2] = { |
144 | .len = sizeof(struct nl80211_sta_flag_update), | |
145 | }, | |
3f77316c | 146 | [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, |
c0692b8f JB |
147 | [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 }, |
148 | [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG }, | |
b23aa676 SO |
149 | [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG }, |
150 | [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 }, | |
151 | [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 }, | |
463d0183 | 152 | [NL80211_ATTR_PID] = { .type = NLA_U32 }, |
8b787643 | 153 | [NL80211_ATTR_4ADDR] = { .type = NLA_U8 }, |
67fbb16b SO |
154 | [NL80211_ATTR_PMKID] = { .type = NLA_BINARY, |
155 | .len = WLAN_PMKID_LEN }, | |
9588bbd5 JM |
156 | [NL80211_ATTR_DURATION] = { .type = NLA_U32 }, |
157 | [NL80211_ATTR_COOKIE] = { .type = NLA_U64 }, | |
13ae75b1 | 158 | [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED }, |
026331c4 JM |
159 | [NL80211_ATTR_FRAME] = { .type = NLA_BINARY, |
160 | .len = IEEE80211_MAX_DATA_LEN }, | |
161 | [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, }, | |
ffb9eb3d | 162 | [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 }, |
d6dc1a38 | 163 | [NL80211_ATTR_CQM] = { .type = NLA_NESTED, }, |
d5cdfacb | 164 | [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG }, |
fd8aaaf3 | 165 | [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 }, |
98d2ff8b JO |
166 | |
167 | [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 }, | |
168 | [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 }, | |
2e161f78 | 169 | [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 }, |
55682965 JB |
170 | }; |
171 | ||
e31b8213 | 172 | /* policy for the key attributes */ |
b54452b0 | 173 | static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { |
fffd0934 | 174 | [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN }, |
b9454e83 JB |
175 | [NL80211_KEY_IDX] = { .type = NLA_U8 }, |
176 | [NL80211_KEY_CIPHER] = { .type = NLA_U32 }, | |
177 | [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 8 }, | |
178 | [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG }, | |
179 | [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, | |
e31b8213 | 180 | [NL80211_KEY_TYPE] = { .type = NLA_U32 }, |
b9454e83 JB |
181 | }; |
182 | ||
a043897a HS |
183 | /* ifidx get helper */ |
184 | static int nl80211_get_ifidx(struct netlink_callback *cb) | |
185 | { | |
186 | int res; | |
187 | ||
188 | res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize, | |
189 | nl80211_fam.attrbuf, nl80211_fam.maxattr, | |
190 | nl80211_policy); | |
191 | if (res) | |
192 | return res; | |
193 | ||
194 | if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]) | |
195 | return -EINVAL; | |
196 | ||
197 | res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]); | |
198 | if (!res) | |
199 | return -EINVAL; | |
200 | return res; | |
201 | } | |
202 | ||
67748893 JB |
203 | static int nl80211_prepare_netdev_dump(struct sk_buff *skb, |
204 | struct netlink_callback *cb, | |
205 | struct cfg80211_registered_device **rdev, | |
206 | struct net_device **dev) | |
207 | { | |
208 | int ifidx = cb->args[0]; | |
209 | int err; | |
210 | ||
211 | if (!ifidx) | |
212 | ifidx = nl80211_get_ifidx(cb); | |
213 | if (ifidx < 0) | |
214 | return ifidx; | |
215 | ||
216 | cb->args[0] = ifidx; | |
217 | ||
218 | rtnl_lock(); | |
219 | ||
220 | *dev = __dev_get_by_index(sock_net(skb->sk), ifidx); | |
221 | if (!*dev) { | |
222 | err = -ENODEV; | |
223 | goto out_rtnl; | |
224 | } | |
225 | ||
226 | *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx); | |
227 | if (IS_ERR(dev)) { | |
228 | err = PTR_ERR(dev); | |
229 | goto out_rtnl; | |
230 | } | |
231 | ||
232 | return 0; | |
233 | out_rtnl: | |
234 | rtnl_unlock(); | |
235 | return err; | |
236 | } | |
237 | ||
238 | static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev) | |
239 | { | |
240 | cfg80211_unlock_rdev(rdev); | |
241 | rtnl_unlock(); | |
242 | } | |
243 | ||
f4a11bb0 JB |
244 | /* IE validation */ |
245 | static bool is_valid_ie_attr(const struct nlattr *attr) | |
246 | { | |
247 | const u8 *pos; | |
248 | int len; | |
249 | ||
250 | if (!attr) | |
251 | return true; | |
252 | ||
253 | pos = nla_data(attr); | |
254 | len = nla_len(attr); | |
255 | ||
256 | while (len) { | |
257 | u8 elemlen; | |
258 | ||
259 | if (len < 2) | |
260 | return false; | |
261 | len -= 2; | |
262 | ||
263 | elemlen = pos[1]; | |
264 | if (elemlen > len) | |
265 | return false; | |
266 | ||
267 | len -= elemlen; | |
268 | pos += 2 + elemlen; | |
269 | } | |
270 | ||
271 | return true; | |
272 | } | |
273 | ||
55682965 JB |
274 | /* message building helper */ |
275 | static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq, | |
276 | int flags, u8 cmd) | |
277 | { | |
278 | /* since there is no private header just add the generic one */ | |
279 | return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd); | |
280 | } | |
281 | ||
5dab3b8a LR |
282 | static int nl80211_msg_put_channel(struct sk_buff *msg, |
283 | struct ieee80211_channel *chan) | |
284 | { | |
285 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ, | |
286 | chan->center_freq); | |
287 | ||
288 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
289 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED); | |
290 | if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) | |
291 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN); | |
292 | if (chan->flags & IEEE80211_CHAN_NO_IBSS) | |
293 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS); | |
294 | if (chan->flags & IEEE80211_CHAN_RADAR) | |
295 | NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR); | |
296 | ||
297 | NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, | |
298 | DBM_TO_MBM(chan->max_power)); | |
299 | ||
300 | return 0; | |
301 | ||
302 | nla_put_failure: | |
303 | return -ENOBUFS; | |
304 | } | |
305 | ||
55682965 JB |
306 | /* netlink command implementations */ |
307 | ||
b9454e83 JB |
308 | struct key_parse { |
309 | struct key_params p; | |
310 | int idx; | |
e31b8213 | 311 | int type; |
b9454e83 JB |
312 | bool def, defmgmt; |
313 | }; | |
314 | ||
315 | static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k) | |
316 | { | |
317 | struct nlattr *tb[NL80211_KEY_MAX + 1]; | |
318 | int err = nla_parse_nested(tb, NL80211_KEY_MAX, key, | |
319 | nl80211_key_policy); | |
320 | if (err) | |
321 | return err; | |
322 | ||
323 | k->def = !!tb[NL80211_KEY_DEFAULT]; | |
324 | k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT]; | |
325 | ||
326 | if (tb[NL80211_KEY_IDX]) | |
327 | k->idx = nla_get_u8(tb[NL80211_KEY_IDX]); | |
328 | ||
329 | if (tb[NL80211_KEY_DATA]) { | |
330 | k->p.key = nla_data(tb[NL80211_KEY_DATA]); | |
331 | k->p.key_len = nla_len(tb[NL80211_KEY_DATA]); | |
332 | } | |
333 | ||
334 | if (tb[NL80211_KEY_SEQ]) { | |
335 | k->p.seq = nla_data(tb[NL80211_KEY_SEQ]); | |
336 | k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]); | |
337 | } | |
338 | ||
339 | if (tb[NL80211_KEY_CIPHER]) | |
340 | k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]); | |
341 | ||
e31b8213 JB |
342 | if (tb[NL80211_KEY_TYPE]) { |
343 | k->type = nla_get_u32(tb[NL80211_KEY_TYPE]); | |
344 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
345 | return -EINVAL; | |
346 | } | |
347 | ||
b9454e83 JB |
348 | return 0; |
349 | } | |
350 | ||
351 | static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k) | |
352 | { | |
353 | if (info->attrs[NL80211_ATTR_KEY_DATA]) { | |
354 | k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]); | |
355 | k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); | |
356 | } | |
357 | ||
358 | if (info->attrs[NL80211_ATTR_KEY_SEQ]) { | |
359 | k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
360 | k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); | |
361 | } | |
362 | ||
363 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
364 | k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
365 | ||
366 | if (info->attrs[NL80211_ATTR_KEY_CIPHER]) | |
367 | k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]); | |
368 | ||
369 | k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT]; | |
370 | k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT]; | |
371 | ||
e31b8213 JB |
372 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { |
373 | k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
374 | if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES) | |
375 | return -EINVAL; | |
376 | } | |
377 | ||
b9454e83 JB |
378 | return 0; |
379 | } | |
380 | ||
381 | static int nl80211_parse_key(struct genl_info *info, struct key_parse *k) | |
382 | { | |
383 | int err; | |
384 | ||
385 | memset(k, 0, sizeof(*k)); | |
386 | k->idx = -1; | |
e31b8213 | 387 | k->type = -1; |
b9454e83 JB |
388 | |
389 | if (info->attrs[NL80211_ATTR_KEY]) | |
390 | err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k); | |
391 | else | |
392 | err = nl80211_parse_key_old(info, k); | |
393 | ||
394 | if (err) | |
395 | return err; | |
396 | ||
397 | if (k->def && k->defmgmt) | |
398 | return -EINVAL; | |
399 | ||
400 | if (k->idx != -1) { | |
401 | if (k->defmgmt) { | |
402 | if (k->idx < 4 || k->idx > 5) | |
403 | return -EINVAL; | |
404 | } else if (k->def) { | |
405 | if (k->idx < 0 || k->idx > 3) | |
406 | return -EINVAL; | |
407 | } else { | |
408 | if (k->idx < 0 || k->idx > 5) | |
409 | return -EINVAL; | |
410 | } | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } | |
415 | ||
fffd0934 JB |
416 | static struct cfg80211_cached_keys * |
417 | nl80211_parse_connkeys(struct cfg80211_registered_device *rdev, | |
418 | struct nlattr *keys) | |
419 | { | |
420 | struct key_parse parse; | |
421 | struct nlattr *key; | |
422 | struct cfg80211_cached_keys *result; | |
423 | int rem, err, def = 0; | |
424 | ||
425 | result = kzalloc(sizeof(*result), GFP_KERNEL); | |
426 | if (!result) | |
427 | return ERR_PTR(-ENOMEM); | |
428 | ||
429 | result->def = -1; | |
430 | result->defmgmt = -1; | |
431 | ||
432 | nla_for_each_nested(key, keys, rem) { | |
433 | memset(&parse, 0, sizeof(parse)); | |
434 | parse.idx = -1; | |
435 | ||
436 | err = nl80211_parse_key_new(key, &parse); | |
437 | if (err) | |
438 | goto error; | |
439 | err = -EINVAL; | |
440 | if (!parse.p.key) | |
441 | goto error; | |
442 | if (parse.idx < 0 || parse.idx > 4) | |
443 | goto error; | |
444 | if (parse.def) { | |
445 | if (def) | |
446 | goto error; | |
447 | def = 1; | |
448 | result->def = parse.idx; | |
449 | } else if (parse.defmgmt) | |
450 | goto error; | |
451 | err = cfg80211_validate_key_settings(rdev, &parse.p, | |
e31b8213 | 452 | parse.idx, false, NULL); |
fffd0934 JB |
453 | if (err) |
454 | goto error; | |
455 | result->params[parse.idx].cipher = parse.p.cipher; | |
456 | result->params[parse.idx].key_len = parse.p.key_len; | |
457 | result->params[parse.idx].key = result->data[parse.idx]; | |
458 | memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len); | |
459 | } | |
460 | ||
461 | return result; | |
462 | error: | |
463 | kfree(result); | |
464 | return ERR_PTR(err); | |
465 | } | |
466 | ||
467 | static int nl80211_key_allowed(struct wireless_dev *wdev) | |
468 | { | |
469 | ASSERT_WDEV_LOCK(wdev); | |
470 | ||
fffd0934 JB |
471 | switch (wdev->iftype) { |
472 | case NL80211_IFTYPE_AP: | |
473 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 474 | case NL80211_IFTYPE_P2P_GO: |
fffd0934 JB |
475 | break; |
476 | case NL80211_IFTYPE_ADHOC: | |
477 | if (!wdev->current_bss) | |
478 | return -ENOLINK; | |
479 | break; | |
480 | case NL80211_IFTYPE_STATION: | |
074ac8df | 481 | case NL80211_IFTYPE_P2P_CLIENT: |
fffd0934 JB |
482 | if (wdev->sme_state != CFG80211_SME_CONNECTED) |
483 | return -ENOLINK; | |
484 | break; | |
485 | default: | |
486 | return -EINVAL; | |
487 | } | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
55682965 JB |
492 | static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, |
493 | struct cfg80211_registered_device *dev) | |
494 | { | |
495 | void *hdr; | |
ee688b00 JB |
496 | struct nlattr *nl_bands, *nl_band; |
497 | struct nlattr *nl_freqs, *nl_freq; | |
498 | struct nlattr *nl_rates, *nl_rate; | |
f59ac048 | 499 | struct nlattr *nl_modes; |
8fdc621d | 500 | struct nlattr *nl_cmds; |
ee688b00 JB |
501 | enum ieee80211_band band; |
502 | struct ieee80211_channel *chan; | |
503 | struct ieee80211_rate *rate; | |
504 | int i; | |
f59ac048 | 505 | u16 ifmodes = dev->wiphy.interface_modes; |
2e161f78 JB |
506 | const struct ieee80211_txrx_stypes *mgmt_stypes = |
507 | dev->wiphy.mgmt_stypes; | |
55682965 JB |
508 | |
509 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY); | |
510 | if (!hdr) | |
511 | return -1; | |
512 | ||
b5850a7a | 513 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx); |
55682965 | 514 | NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)); |
b9a5f8ca | 515 | |
f5ea9120 JB |
516 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, |
517 | cfg80211_rdev_list_generation); | |
518 | ||
b9a5f8ca JM |
519 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, |
520 | dev->wiphy.retry_short); | |
521 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, | |
522 | dev->wiphy.retry_long); | |
523 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, | |
524 | dev->wiphy.frag_threshold); | |
525 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, | |
526 | dev->wiphy.rts_threshold); | |
81077e82 LT |
527 | NLA_PUT_U8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, |
528 | dev->wiphy.coverage_class); | |
b9a5f8ca | 529 | |
2a519311 JB |
530 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, |
531 | dev->wiphy.max_scan_ssids); | |
18a83659 JB |
532 | NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, |
533 | dev->wiphy.max_scan_ie_len); | |
ee688b00 | 534 | |
e31b8213 JB |
535 | if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) |
536 | NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN); | |
537 | ||
25e47c18 JB |
538 | NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, |
539 | sizeof(u32) * dev->wiphy.n_cipher_suites, | |
540 | dev->wiphy.cipher_suites); | |
541 | ||
67fbb16b SO |
542 | NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, |
543 | dev->wiphy.max_num_pmkids); | |
544 | ||
c0692b8f JB |
545 | if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) |
546 | NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE); | |
547 | ||
f59ac048 LR |
548 | nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES); |
549 | if (!nl_modes) | |
550 | goto nla_put_failure; | |
551 | ||
552 | i = 0; | |
553 | while (ifmodes) { | |
554 | if (ifmodes & 1) | |
555 | NLA_PUT_FLAG(msg, i); | |
556 | ifmodes >>= 1; | |
557 | i++; | |
558 | } | |
559 | ||
560 | nla_nest_end(msg, nl_modes); | |
561 | ||
ee688b00 JB |
562 | nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS); |
563 | if (!nl_bands) | |
564 | goto nla_put_failure; | |
565 | ||
566 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { | |
567 | if (!dev->wiphy.bands[band]) | |
568 | continue; | |
569 | ||
570 | nl_band = nla_nest_start(msg, band); | |
571 | if (!nl_band) | |
572 | goto nla_put_failure; | |
573 | ||
d51626df JB |
574 | /* add HT info */ |
575 | if (dev->wiphy.bands[band]->ht_cap.ht_supported) { | |
576 | NLA_PUT(msg, NL80211_BAND_ATTR_HT_MCS_SET, | |
577 | sizeof(dev->wiphy.bands[band]->ht_cap.mcs), | |
578 | &dev->wiphy.bands[band]->ht_cap.mcs); | |
579 | NLA_PUT_U16(msg, NL80211_BAND_ATTR_HT_CAPA, | |
580 | dev->wiphy.bands[band]->ht_cap.cap); | |
581 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR, | |
582 | dev->wiphy.bands[band]->ht_cap.ampdu_factor); | |
583 | NLA_PUT_U8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY, | |
584 | dev->wiphy.bands[band]->ht_cap.ampdu_density); | |
585 | } | |
586 | ||
ee688b00 JB |
587 | /* add frequencies */ |
588 | nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS); | |
589 | if (!nl_freqs) | |
590 | goto nla_put_failure; | |
591 | ||
592 | for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) { | |
593 | nl_freq = nla_nest_start(msg, i); | |
594 | if (!nl_freq) | |
595 | goto nla_put_failure; | |
596 | ||
597 | chan = &dev->wiphy.bands[band]->channels[i]; | |
5dab3b8a LR |
598 | |
599 | if (nl80211_msg_put_channel(msg, chan)) | |
600 | goto nla_put_failure; | |
e2f367f2 | 601 | |
ee688b00 JB |
602 | nla_nest_end(msg, nl_freq); |
603 | } | |
604 | ||
605 | nla_nest_end(msg, nl_freqs); | |
606 | ||
607 | /* add bitrates */ | |
608 | nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES); | |
609 | if (!nl_rates) | |
610 | goto nla_put_failure; | |
611 | ||
612 | for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) { | |
613 | nl_rate = nla_nest_start(msg, i); | |
614 | if (!nl_rate) | |
615 | goto nla_put_failure; | |
616 | ||
617 | rate = &dev->wiphy.bands[band]->bitrates[i]; | |
618 | NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE, | |
619 | rate->bitrate); | |
620 | if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) | |
621 | NLA_PUT_FLAG(msg, | |
622 | NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE); | |
623 | ||
624 | nla_nest_end(msg, nl_rate); | |
625 | } | |
626 | ||
627 | nla_nest_end(msg, nl_rates); | |
628 | ||
629 | nla_nest_end(msg, nl_band); | |
630 | } | |
631 | nla_nest_end(msg, nl_bands); | |
632 | ||
8fdc621d JB |
633 | nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS); |
634 | if (!nl_cmds) | |
635 | goto nla_put_failure; | |
636 | ||
637 | i = 0; | |
638 | #define CMD(op, n) \ | |
639 | do { \ | |
640 | if (dev->ops->op) { \ | |
641 | i++; \ | |
642 | NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \ | |
643 | } \ | |
644 | } while (0) | |
645 | ||
646 | CMD(add_virtual_intf, NEW_INTERFACE); | |
647 | CMD(change_virtual_intf, SET_INTERFACE); | |
648 | CMD(add_key, NEW_KEY); | |
649 | CMD(add_beacon, NEW_BEACON); | |
650 | CMD(add_station, NEW_STATION); | |
651 | CMD(add_mpath, NEW_MPATH); | |
652 | CMD(set_mesh_params, SET_MESH_PARAMS); | |
653 | CMD(change_bss, SET_BSS); | |
636a5d36 JM |
654 | CMD(auth, AUTHENTICATE); |
655 | CMD(assoc, ASSOCIATE); | |
656 | CMD(deauth, DEAUTHENTICATE); | |
657 | CMD(disassoc, DISASSOCIATE); | |
04a773ad | 658 | CMD(join_ibss, JOIN_IBSS); |
67fbb16b SO |
659 | CMD(set_pmksa, SET_PMKSA); |
660 | CMD(del_pmksa, DEL_PMKSA); | |
661 | CMD(flush_pmksa, FLUSH_PMKSA); | |
9588bbd5 | 662 | CMD(remain_on_channel, REMAIN_ON_CHANNEL); |
13ae75b1 | 663 | CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); |
2e161f78 | 664 | CMD(mgmt_tx, FRAME); |
5be83de5 | 665 | if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { |
463d0183 JB |
666 | i++; |
667 | NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); | |
668 | } | |
f444de05 | 669 | CMD(set_channel, SET_CHANNEL); |
e8347eba | 670 | CMD(set_wds_peer, SET_WDS_PEER); |
8fdc621d JB |
671 | |
672 | #undef CMD | |
b23aa676 | 673 | |
6829c878 | 674 | if (dev->ops->connect || dev->ops->auth) { |
b23aa676 SO |
675 | i++; |
676 | NLA_PUT_U32(msg, i, NL80211_CMD_CONNECT); | |
677 | } | |
678 | ||
6829c878 | 679 | if (dev->ops->disconnect || dev->ops->deauth) { |
b23aa676 SO |
680 | i++; |
681 | NLA_PUT_U32(msg, i, NL80211_CMD_DISCONNECT); | |
682 | } | |
683 | ||
8fdc621d JB |
684 | nla_nest_end(msg, nl_cmds); |
685 | ||
2e161f78 JB |
686 | if (mgmt_stypes) { |
687 | u16 stypes; | |
688 | struct nlattr *nl_ftypes, *nl_ifs; | |
689 | enum nl80211_iftype ift; | |
690 | ||
691 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES); | |
692 | if (!nl_ifs) | |
693 | goto nla_put_failure; | |
694 | ||
695 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
696 | nl_ftypes = nla_nest_start(msg, ift); | |
697 | if (!nl_ftypes) | |
698 | goto nla_put_failure; | |
699 | i = 0; | |
700 | stypes = mgmt_stypes[ift].tx; | |
701 | while (stypes) { | |
702 | if (stypes & 1) | |
703 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
704 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
705 | stypes >>= 1; | |
706 | i++; | |
707 | } | |
708 | nla_nest_end(msg, nl_ftypes); | |
709 | } | |
710 | ||
74b70a4e JB |
711 | nla_nest_end(msg, nl_ifs); |
712 | ||
2e161f78 JB |
713 | nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES); |
714 | if (!nl_ifs) | |
715 | goto nla_put_failure; | |
716 | ||
717 | for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) { | |
718 | nl_ftypes = nla_nest_start(msg, ift); | |
719 | if (!nl_ftypes) | |
720 | goto nla_put_failure; | |
721 | i = 0; | |
722 | stypes = mgmt_stypes[ift].rx; | |
723 | while (stypes) { | |
724 | if (stypes & 1) | |
725 | NLA_PUT_U16(msg, NL80211_ATTR_FRAME_TYPE, | |
726 | (i << 4) | IEEE80211_FTYPE_MGMT); | |
727 | stypes >>= 1; | |
728 | i++; | |
729 | } | |
730 | nla_nest_end(msg, nl_ftypes); | |
731 | } | |
732 | nla_nest_end(msg, nl_ifs); | |
733 | } | |
734 | ||
55682965 JB |
735 | return genlmsg_end(msg, hdr); |
736 | ||
737 | nla_put_failure: | |
bc3ed28c TG |
738 | genlmsg_cancel(msg, hdr); |
739 | return -EMSGSIZE; | |
55682965 JB |
740 | } |
741 | ||
742 | static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) | |
743 | { | |
744 | int idx = 0; | |
745 | int start = cb->args[0]; | |
746 | struct cfg80211_registered_device *dev; | |
747 | ||
a1794390 | 748 | mutex_lock(&cfg80211_mutex); |
79c97e97 | 749 | list_for_each_entry(dev, &cfg80211_rdev_list, list) { |
463d0183 JB |
750 | if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) |
751 | continue; | |
b4637271 | 752 | if (++idx <= start) |
55682965 JB |
753 | continue; |
754 | if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid, | |
755 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
b4637271 JV |
756 | dev) < 0) { |
757 | idx--; | |
55682965 | 758 | break; |
b4637271 | 759 | } |
55682965 | 760 | } |
a1794390 | 761 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
762 | |
763 | cb->args[0] = idx; | |
764 | ||
765 | return skb->len; | |
766 | } | |
767 | ||
768 | static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) | |
769 | { | |
770 | struct sk_buff *msg; | |
4c476991 | 771 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
55682965 | 772 | |
fd2120ca | 773 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 774 | if (!msg) |
4c476991 | 775 | return -ENOMEM; |
55682965 | 776 | |
4c476991 JB |
777 | if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) { |
778 | nlmsg_free(msg); | |
779 | return -ENOBUFS; | |
780 | } | |
55682965 | 781 | |
134e6375 | 782 | return genlmsg_reply(msg, info); |
55682965 JB |
783 | } |
784 | ||
31888487 JM |
785 | static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = { |
786 | [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 }, | |
787 | [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 }, | |
788 | [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 }, | |
789 | [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 }, | |
790 | [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 }, | |
791 | }; | |
792 | ||
793 | static int parse_txq_params(struct nlattr *tb[], | |
794 | struct ieee80211_txq_params *txq_params) | |
795 | { | |
796 | if (!tb[NL80211_TXQ_ATTR_QUEUE] || !tb[NL80211_TXQ_ATTR_TXOP] || | |
797 | !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] || | |
798 | !tb[NL80211_TXQ_ATTR_AIFS]) | |
799 | return -EINVAL; | |
800 | ||
801 | txq_params->queue = nla_get_u8(tb[NL80211_TXQ_ATTR_QUEUE]); | |
802 | txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]); | |
803 | txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]); | |
804 | txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]); | |
805 | txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]); | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
f444de05 JB |
810 | static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) |
811 | { | |
812 | /* | |
813 | * You can only set the channel explicitly for AP, mesh | |
814 | * and WDS type interfaces; all others have their channel | |
815 | * managed via their respective "establish a connection" | |
816 | * command (connect, join, ...) | |
817 | * | |
818 | * Monitors are special as they are normally slaved to | |
819 | * whatever else is going on, so they behave as though | |
820 | * you tried setting the wiphy channel itself. | |
821 | */ | |
822 | return !wdev || | |
823 | wdev->iftype == NL80211_IFTYPE_AP || | |
824 | wdev->iftype == NL80211_IFTYPE_WDS || | |
825 | wdev->iftype == NL80211_IFTYPE_MESH_POINT || | |
074ac8df JB |
826 | wdev->iftype == NL80211_IFTYPE_MONITOR || |
827 | wdev->iftype == NL80211_IFTYPE_P2P_GO; | |
f444de05 JB |
828 | } |
829 | ||
830 | static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, | |
831 | struct wireless_dev *wdev, | |
832 | struct genl_info *info) | |
833 | { | |
834 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
835 | u32 freq; | |
836 | int result; | |
837 | ||
838 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
839 | return -EINVAL; | |
840 | ||
841 | if (!nl80211_can_set_dev_channel(wdev)) | |
842 | return -EOPNOTSUPP; | |
843 | ||
844 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { | |
845 | channel_type = nla_get_u32(info->attrs[ | |
846 | NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
847 | if (channel_type != NL80211_CHAN_NO_HT && | |
848 | channel_type != NL80211_CHAN_HT20 && | |
849 | channel_type != NL80211_CHAN_HT40PLUS && | |
850 | channel_type != NL80211_CHAN_HT40MINUS) | |
851 | return -EINVAL; | |
852 | } | |
853 | ||
854 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
855 | ||
856 | mutex_lock(&rdev->devlist_mtx); | |
857 | if (wdev) { | |
858 | wdev_lock(wdev); | |
859 | result = cfg80211_set_freq(rdev, wdev, freq, channel_type); | |
860 | wdev_unlock(wdev); | |
861 | } else { | |
862 | result = cfg80211_set_freq(rdev, NULL, freq, channel_type); | |
863 | } | |
864 | mutex_unlock(&rdev->devlist_mtx); | |
865 | ||
866 | return result; | |
867 | } | |
868 | ||
869 | static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) | |
870 | { | |
4c476991 JB |
871 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
872 | struct net_device *netdev = info->user_ptr[1]; | |
f444de05 | 873 | |
4c476991 | 874 | return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); |
f444de05 JB |
875 | } |
876 | ||
e8347eba BJ |
877 | static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) |
878 | { | |
879 | struct cfg80211_registered_device *rdev; | |
880 | struct wireless_dev *wdev; | |
881 | struct net_device *dev; | |
882 | u8 *bssid; | |
883 | int err; | |
884 | ||
885 | if (!info->attrs[NL80211_ATTR_MAC]) | |
886 | return -EINVAL; | |
887 | ||
888 | rtnl_lock(); | |
889 | ||
890 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
891 | if (err) | |
892 | goto unlock_rtnl; | |
893 | ||
894 | wdev = dev->ieee80211_ptr; | |
895 | ||
896 | if (netif_running(dev)) { | |
897 | err = -EBUSY; | |
898 | goto out; | |
899 | } | |
900 | ||
901 | if (!rdev->ops->set_wds_peer) { | |
902 | err = -EOPNOTSUPP; | |
903 | goto out; | |
904 | } | |
905 | ||
906 | if (wdev->iftype != NL80211_IFTYPE_WDS) { | |
907 | err = -EOPNOTSUPP; | |
908 | goto out; | |
909 | } | |
910 | ||
911 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
912 | err = rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid); | |
913 | ||
914 | out: | |
915 | cfg80211_unlock_rdev(rdev); | |
916 | dev_put(dev); | |
917 | unlock_rtnl: | |
918 | rtnl_unlock(); | |
919 | ||
920 | return err; | |
921 | } | |
922 | ||
923 | ||
55682965 JB |
924 | static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) |
925 | { | |
926 | struct cfg80211_registered_device *rdev; | |
f444de05 JB |
927 | struct net_device *netdev = NULL; |
928 | struct wireless_dev *wdev; | |
a1e567c8 | 929 | int result = 0, rem_txq_params = 0; |
31888487 | 930 | struct nlattr *nl_txq_params; |
b9a5f8ca JM |
931 | u32 changed; |
932 | u8 retry_short = 0, retry_long = 0; | |
933 | u32 frag_threshold = 0, rts_threshold = 0; | |
81077e82 | 934 | u8 coverage_class = 0; |
55682965 | 935 | |
f444de05 JB |
936 | /* |
937 | * Try to find the wiphy and netdev. Normally this | |
938 | * function shouldn't need the netdev, but this is | |
939 | * done for backward compatibility -- previously | |
940 | * setting the channel was done per wiphy, but now | |
941 | * it is per netdev. Previous userland like hostapd | |
942 | * also passed a netdev to set_wiphy, so that it is | |
943 | * possible to let that go to the right netdev! | |
944 | */ | |
4bbf4d56 JB |
945 | mutex_lock(&cfg80211_mutex); |
946 | ||
f444de05 JB |
947 | if (info->attrs[NL80211_ATTR_IFINDEX]) { |
948 | int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]); | |
949 | ||
950 | netdev = dev_get_by_index(genl_info_net(info), ifindex); | |
951 | if (netdev && netdev->ieee80211_ptr) { | |
952 | rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); | |
953 | mutex_lock(&rdev->mtx); | |
954 | } else | |
955 | netdev = NULL; | |
4bbf4d56 JB |
956 | } |
957 | ||
f444de05 JB |
958 | if (!netdev) { |
959 | rdev = __cfg80211_rdev_from_info(info); | |
960 | if (IS_ERR(rdev)) { | |
961 | mutex_unlock(&cfg80211_mutex); | |
4c476991 | 962 | return PTR_ERR(rdev); |
f444de05 JB |
963 | } |
964 | wdev = NULL; | |
965 | netdev = NULL; | |
966 | result = 0; | |
967 | ||
968 | mutex_lock(&rdev->mtx); | |
969 | } else if (netif_running(netdev) && | |
970 | nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) | |
971 | wdev = netdev->ieee80211_ptr; | |
972 | else | |
973 | wdev = NULL; | |
974 | ||
975 | /* | |
976 | * end workaround code, by now the rdev is available | |
977 | * and locked, and wdev may or may not be NULL. | |
978 | */ | |
4bbf4d56 JB |
979 | |
980 | if (info->attrs[NL80211_ATTR_WIPHY_NAME]) | |
31888487 JM |
981 | result = cfg80211_dev_rename( |
982 | rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME])); | |
4bbf4d56 JB |
983 | |
984 | mutex_unlock(&cfg80211_mutex); | |
985 | ||
986 | if (result) | |
987 | goto bad_res; | |
31888487 JM |
988 | |
989 | if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) { | |
990 | struct ieee80211_txq_params txq_params; | |
991 | struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1]; | |
992 | ||
993 | if (!rdev->ops->set_txq_params) { | |
994 | result = -EOPNOTSUPP; | |
995 | goto bad_res; | |
996 | } | |
997 | ||
998 | nla_for_each_nested(nl_txq_params, | |
999 | info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], | |
1000 | rem_txq_params) { | |
1001 | nla_parse(tb, NL80211_TXQ_ATTR_MAX, | |
1002 | nla_data(nl_txq_params), | |
1003 | nla_len(nl_txq_params), | |
1004 | txq_params_policy); | |
1005 | result = parse_txq_params(tb, &txq_params); | |
1006 | if (result) | |
1007 | goto bad_res; | |
1008 | ||
1009 | result = rdev->ops->set_txq_params(&rdev->wiphy, | |
1010 | &txq_params); | |
1011 | if (result) | |
1012 | goto bad_res; | |
1013 | } | |
1014 | } | |
55682965 | 1015 | |
72bdcf34 | 1016 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { |
f444de05 | 1017 | result = __nl80211_set_channel(rdev, wdev, info); |
72bdcf34 JM |
1018 | if (result) |
1019 | goto bad_res; | |
1020 | } | |
1021 | ||
98d2ff8b JO |
1022 | if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) { |
1023 | enum nl80211_tx_power_setting type; | |
1024 | int idx, mbm = 0; | |
1025 | ||
1026 | if (!rdev->ops->set_tx_power) { | |
60ea385f | 1027 | result = -EOPNOTSUPP; |
98d2ff8b JO |
1028 | goto bad_res; |
1029 | } | |
1030 | ||
1031 | idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING; | |
1032 | type = nla_get_u32(info->attrs[idx]); | |
1033 | ||
1034 | if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] && | |
1035 | (type != NL80211_TX_POWER_AUTOMATIC)) { | |
1036 | result = -EINVAL; | |
1037 | goto bad_res; | |
1038 | } | |
1039 | ||
1040 | if (type != NL80211_TX_POWER_AUTOMATIC) { | |
1041 | idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL; | |
1042 | mbm = nla_get_u32(info->attrs[idx]); | |
1043 | } | |
1044 | ||
1045 | result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm); | |
1046 | if (result) | |
1047 | goto bad_res; | |
1048 | } | |
1049 | ||
b9a5f8ca JM |
1050 | changed = 0; |
1051 | ||
1052 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) { | |
1053 | retry_short = nla_get_u8( | |
1054 | info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]); | |
1055 | if (retry_short == 0) { | |
1056 | result = -EINVAL; | |
1057 | goto bad_res; | |
1058 | } | |
1059 | changed |= WIPHY_PARAM_RETRY_SHORT; | |
1060 | } | |
1061 | ||
1062 | if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) { | |
1063 | retry_long = nla_get_u8( | |
1064 | info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]); | |
1065 | if (retry_long == 0) { | |
1066 | result = -EINVAL; | |
1067 | goto bad_res; | |
1068 | } | |
1069 | changed |= WIPHY_PARAM_RETRY_LONG; | |
1070 | } | |
1071 | ||
1072 | if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) { | |
1073 | frag_threshold = nla_get_u32( | |
1074 | info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]); | |
1075 | if (frag_threshold < 256) { | |
1076 | result = -EINVAL; | |
1077 | goto bad_res; | |
1078 | } | |
1079 | if (frag_threshold != (u32) -1) { | |
1080 | /* | |
1081 | * Fragments (apart from the last one) are required to | |
1082 | * have even length. Make the fragmentation code | |
1083 | * simpler by stripping LSB should someone try to use | |
1084 | * odd threshold value. | |
1085 | */ | |
1086 | frag_threshold &= ~0x1; | |
1087 | } | |
1088 | changed |= WIPHY_PARAM_FRAG_THRESHOLD; | |
1089 | } | |
1090 | ||
1091 | if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) { | |
1092 | rts_threshold = nla_get_u32( | |
1093 | info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]); | |
1094 | changed |= WIPHY_PARAM_RTS_THRESHOLD; | |
1095 | } | |
1096 | ||
81077e82 LT |
1097 | if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) { |
1098 | coverage_class = nla_get_u8( | |
1099 | info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]); | |
1100 | changed |= WIPHY_PARAM_COVERAGE_CLASS; | |
1101 | } | |
1102 | ||
b9a5f8ca JM |
1103 | if (changed) { |
1104 | u8 old_retry_short, old_retry_long; | |
1105 | u32 old_frag_threshold, old_rts_threshold; | |
81077e82 | 1106 | u8 old_coverage_class; |
b9a5f8ca JM |
1107 | |
1108 | if (!rdev->ops->set_wiphy_params) { | |
1109 | result = -EOPNOTSUPP; | |
1110 | goto bad_res; | |
1111 | } | |
1112 | ||
1113 | old_retry_short = rdev->wiphy.retry_short; | |
1114 | old_retry_long = rdev->wiphy.retry_long; | |
1115 | old_frag_threshold = rdev->wiphy.frag_threshold; | |
1116 | old_rts_threshold = rdev->wiphy.rts_threshold; | |
81077e82 | 1117 | old_coverage_class = rdev->wiphy.coverage_class; |
b9a5f8ca JM |
1118 | |
1119 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1120 | rdev->wiphy.retry_short = retry_short; | |
1121 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1122 | rdev->wiphy.retry_long = retry_long; | |
1123 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) | |
1124 | rdev->wiphy.frag_threshold = frag_threshold; | |
1125 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) | |
1126 | rdev->wiphy.rts_threshold = rts_threshold; | |
81077e82 LT |
1127 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) |
1128 | rdev->wiphy.coverage_class = coverage_class; | |
b9a5f8ca JM |
1129 | |
1130 | result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed); | |
1131 | if (result) { | |
1132 | rdev->wiphy.retry_short = old_retry_short; | |
1133 | rdev->wiphy.retry_long = old_retry_long; | |
1134 | rdev->wiphy.frag_threshold = old_frag_threshold; | |
1135 | rdev->wiphy.rts_threshold = old_rts_threshold; | |
81077e82 | 1136 | rdev->wiphy.coverage_class = old_coverage_class; |
b9a5f8ca JM |
1137 | } |
1138 | } | |
72bdcf34 | 1139 | |
306d6112 | 1140 | bad_res: |
4bbf4d56 | 1141 | mutex_unlock(&rdev->mtx); |
f444de05 JB |
1142 | if (netdev) |
1143 | dev_put(netdev); | |
55682965 JB |
1144 | return result; |
1145 | } | |
1146 | ||
1147 | ||
1148 | static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
d726405a | 1149 | struct cfg80211_registered_device *rdev, |
55682965 JB |
1150 | struct net_device *dev) |
1151 | { | |
1152 | void *hdr; | |
1153 | ||
1154 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE); | |
1155 | if (!hdr) | |
1156 | return -1; | |
1157 | ||
1158 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
d726405a | 1159 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
55682965 | 1160 | NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name); |
60719ffd | 1161 | NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, dev->ieee80211_ptr->iftype); |
f5ea9120 JB |
1162 | |
1163 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, | |
1164 | rdev->devlist_generation ^ | |
1165 | (cfg80211_rdev_list_generation << 2)); | |
1166 | ||
55682965 JB |
1167 | return genlmsg_end(msg, hdr); |
1168 | ||
1169 | nla_put_failure: | |
bc3ed28c TG |
1170 | genlmsg_cancel(msg, hdr); |
1171 | return -EMSGSIZE; | |
55682965 JB |
1172 | } |
1173 | ||
1174 | static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb) | |
1175 | { | |
1176 | int wp_idx = 0; | |
1177 | int if_idx = 0; | |
1178 | int wp_start = cb->args[0]; | |
1179 | int if_start = cb->args[1]; | |
f5ea9120 | 1180 | struct cfg80211_registered_device *rdev; |
55682965 JB |
1181 | struct wireless_dev *wdev; |
1182 | ||
a1794390 | 1183 | mutex_lock(&cfg80211_mutex); |
f5ea9120 JB |
1184 | list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
1185 | if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) | |
463d0183 | 1186 | continue; |
bba95fef JB |
1187 | if (wp_idx < wp_start) { |
1188 | wp_idx++; | |
55682965 | 1189 | continue; |
bba95fef | 1190 | } |
55682965 JB |
1191 | if_idx = 0; |
1192 | ||
f5ea9120 JB |
1193 | mutex_lock(&rdev->devlist_mtx); |
1194 | list_for_each_entry(wdev, &rdev->netdev_list, list) { | |
bba95fef JB |
1195 | if (if_idx < if_start) { |
1196 | if_idx++; | |
55682965 | 1197 | continue; |
bba95fef | 1198 | } |
55682965 JB |
1199 | if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid, |
1200 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
f5ea9120 JB |
1201 | rdev, wdev->netdev) < 0) { |
1202 | mutex_unlock(&rdev->devlist_mtx); | |
bba95fef JB |
1203 | goto out; |
1204 | } | |
1205 | if_idx++; | |
55682965 | 1206 | } |
f5ea9120 | 1207 | mutex_unlock(&rdev->devlist_mtx); |
bba95fef JB |
1208 | |
1209 | wp_idx++; | |
55682965 | 1210 | } |
bba95fef | 1211 | out: |
a1794390 | 1212 | mutex_unlock(&cfg80211_mutex); |
55682965 JB |
1213 | |
1214 | cb->args[0] = wp_idx; | |
1215 | cb->args[1] = if_idx; | |
1216 | ||
1217 | return skb->len; | |
1218 | } | |
1219 | ||
1220 | static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) | |
1221 | { | |
1222 | struct sk_buff *msg; | |
4c476991 JB |
1223 | struct cfg80211_registered_device *dev = info->user_ptr[0]; |
1224 | struct net_device *netdev = info->user_ptr[1]; | |
55682965 | 1225 | |
fd2120ca | 1226 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 | 1227 | if (!msg) |
4c476991 | 1228 | return -ENOMEM; |
55682965 | 1229 | |
d726405a | 1230 | if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, |
4c476991 JB |
1231 | dev, netdev) < 0) { |
1232 | nlmsg_free(msg); | |
1233 | return -ENOBUFS; | |
1234 | } | |
55682965 | 1235 | |
134e6375 | 1236 | return genlmsg_reply(msg, info); |
55682965 JB |
1237 | } |
1238 | ||
66f7ac50 MW |
1239 | static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = { |
1240 | [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG }, | |
1241 | [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG }, | |
1242 | [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG }, | |
1243 | [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG }, | |
1244 | [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG }, | |
1245 | }; | |
1246 | ||
1247 | static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) | |
1248 | { | |
1249 | struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1]; | |
1250 | int flag; | |
1251 | ||
1252 | *mntrflags = 0; | |
1253 | ||
1254 | if (!nla) | |
1255 | return -EINVAL; | |
1256 | ||
1257 | if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX, | |
1258 | nla, mntr_flags_policy)) | |
1259 | return -EINVAL; | |
1260 | ||
1261 | for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++) | |
1262 | if (flags[flag]) | |
1263 | *mntrflags |= (1<<flag); | |
1264 | ||
1265 | return 0; | |
1266 | } | |
1267 | ||
9bc383de | 1268 | static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, |
ad4bb6f8 JB |
1269 | struct net_device *netdev, u8 use_4addr, |
1270 | enum nl80211_iftype iftype) | |
9bc383de | 1271 | { |
ad4bb6f8 | 1272 | if (!use_4addr) { |
f350a0a8 | 1273 | if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT)) |
ad4bb6f8 | 1274 | return -EBUSY; |
9bc383de | 1275 | return 0; |
ad4bb6f8 | 1276 | } |
9bc383de JB |
1277 | |
1278 | switch (iftype) { | |
1279 | case NL80211_IFTYPE_AP_VLAN: | |
1280 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) | |
1281 | return 0; | |
1282 | break; | |
1283 | case NL80211_IFTYPE_STATION: | |
1284 | if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) | |
1285 | return 0; | |
1286 | break; | |
1287 | default: | |
1288 | break; | |
1289 | } | |
1290 | ||
1291 | return -EOPNOTSUPP; | |
1292 | } | |
1293 | ||
55682965 JB |
1294 | static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) |
1295 | { | |
4c476991 | 1296 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1297 | struct vif_params params; |
e36d56b6 | 1298 | int err; |
04a773ad | 1299 | enum nl80211_iftype otype, ntype; |
4c476991 | 1300 | struct net_device *dev = info->user_ptr[1]; |
92ffe055 | 1301 | u32 _flags, *flags = NULL; |
ac7f9cfa | 1302 | bool change = false; |
55682965 | 1303 | |
2ec600d6 LCC |
1304 | memset(¶ms, 0, sizeof(params)); |
1305 | ||
04a773ad | 1306 | otype = ntype = dev->ieee80211_ptr->iftype; |
55682965 | 1307 | |
723b038d | 1308 | if (info->attrs[NL80211_ATTR_IFTYPE]) { |
ac7f9cfa | 1309 | ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); |
04a773ad | 1310 | if (otype != ntype) |
ac7f9cfa | 1311 | change = true; |
4c476991 JB |
1312 | if (ntype > NL80211_IFTYPE_MAX) |
1313 | return -EINVAL; | |
723b038d JB |
1314 | } |
1315 | ||
92ffe055 | 1316 | if (info->attrs[NL80211_ATTR_MESH_ID]) { |
4c476991 JB |
1317 | if (ntype != NL80211_IFTYPE_MESH_POINT) |
1318 | return -EINVAL; | |
2ec600d6 LCC |
1319 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); |
1320 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
ac7f9cfa | 1321 | change = true; |
2ec600d6 LCC |
1322 | } |
1323 | ||
8b787643 FF |
1324 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
1325 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); | |
1326 | change = true; | |
ad4bb6f8 | 1327 | err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); |
9bc383de | 1328 | if (err) |
4c476991 | 1329 | return err; |
8b787643 FF |
1330 | } else { |
1331 | params.use_4addr = -1; | |
1332 | } | |
1333 | ||
92ffe055 | 1334 | if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) { |
4c476991 JB |
1335 | if (ntype != NL80211_IFTYPE_MONITOR) |
1336 | return -EINVAL; | |
92ffe055 JB |
1337 | err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS], |
1338 | &_flags); | |
ac7f9cfa | 1339 | if (err) |
4c476991 | 1340 | return err; |
ac7f9cfa JB |
1341 | |
1342 | flags = &_flags; | |
1343 | change = true; | |
92ffe055 | 1344 | } |
3b85875a | 1345 | |
ac7f9cfa | 1346 | if (change) |
3d54d255 | 1347 | err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms); |
ac7f9cfa JB |
1348 | else |
1349 | err = 0; | |
60719ffd | 1350 | |
9bc383de JB |
1351 | if (!err && params.use_4addr != -1) |
1352 | dev->ieee80211_ptr->use_4addr = params.use_4addr; | |
1353 | ||
55682965 JB |
1354 | return err; |
1355 | } | |
1356 | ||
1357 | static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) | |
1358 | { | |
4c476991 | 1359 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 1360 | struct vif_params params; |
55682965 JB |
1361 | int err; |
1362 | enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; | |
66f7ac50 | 1363 | u32 flags; |
55682965 | 1364 | |
2ec600d6 LCC |
1365 | memset(¶ms, 0, sizeof(params)); |
1366 | ||
55682965 JB |
1367 | if (!info->attrs[NL80211_ATTR_IFNAME]) |
1368 | return -EINVAL; | |
1369 | ||
1370 | if (info->attrs[NL80211_ATTR_IFTYPE]) { | |
1371 | type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); | |
1372 | if (type > NL80211_IFTYPE_MAX) | |
1373 | return -EINVAL; | |
1374 | } | |
1375 | ||
79c97e97 | 1376 | if (!rdev->ops->add_virtual_intf || |
4c476991 JB |
1377 | !(rdev->wiphy.interface_modes & (1 << type))) |
1378 | return -EOPNOTSUPP; | |
55682965 | 1379 | |
2ec600d6 LCC |
1380 | if (type == NL80211_IFTYPE_MESH_POINT && |
1381 | info->attrs[NL80211_ATTR_MESH_ID]) { | |
1382 | params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); | |
1383 | params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); | |
1384 | } | |
1385 | ||
9bc383de | 1386 | if (info->attrs[NL80211_ATTR_4ADDR]) { |
8b787643 | 1387 | params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); |
ad4bb6f8 | 1388 | err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); |
9bc383de | 1389 | if (err) |
4c476991 | 1390 | return err; |
9bc383de | 1391 | } |
8b787643 | 1392 | |
66f7ac50 MW |
1393 | err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? |
1394 | info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, | |
1395 | &flags); | |
79c97e97 | 1396 | err = rdev->ops->add_virtual_intf(&rdev->wiphy, |
66f7ac50 | 1397 | nla_data(info->attrs[NL80211_ATTR_IFNAME]), |
2ec600d6 | 1398 | type, err ? NULL : &flags, ¶ms); |
2ec600d6 | 1399 | |
55682965 JB |
1400 | return err; |
1401 | } | |
1402 | ||
1403 | static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) | |
1404 | { | |
4c476991 JB |
1405 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1406 | struct net_device *dev = info->user_ptr[1]; | |
55682965 | 1407 | |
4c476991 JB |
1408 | if (!rdev->ops->del_virtual_intf) |
1409 | return -EOPNOTSUPP; | |
55682965 | 1410 | |
4c476991 | 1411 | return rdev->ops->del_virtual_intf(&rdev->wiphy, dev); |
55682965 JB |
1412 | } |
1413 | ||
41ade00f JB |
1414 | struct get_key_cookie { |
1415 | struct sk_buff *msg; | |
1416 | int error; | |
b9454e83 | 1417 | int idx; |
41ade00f JB |
1418 | }; |
1419 | ||
1420 | static void get_key_callback(void *c, struct key_params *params) | |
1421 | { | |
b9454e83 | 1422 | struct nlattr *key; |
41ade00f JB |
1423 | struct get_key_cookie *cookie = c; |
1424 | ||
1425 | if (params->key) | |
1426 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA, | |
1427 | params->key_len, params->key); | |
1428 | ||
1429 | if (params->seq) | |
1430 | NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ, | |
1431 | params->seq_len, params->seq); | |
1432 | ||
1433 | if (params->cipher) | |
1434 | NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER, | |
1435 | params->cipher); | |
1436 | ||
b9454e83 JB |
1437 | key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY); |
1438 | if (!key) | |
1439 | goto nla_put_failure; | |
1440 | ||
1441 | if (params->key) | |
1442 | NLA_PUT(cookie->msg, NL80211_KEY_DATA, | |
1443 | params->key_len, params->key); | |
1444 | ||
1445 | if (params->seq) | |
1446 | NLA_PUT(cookie->msg, NL80211_KEY_SEQ, | |
1447 | params->seq_len, params->seq); | |
1448 | ||
1449 | if (params->cipher) | |
1450 | NLA_PUT_U32(cookie->msg, NL80211_KEY_CIPHER, | |
1451 | params->cipher); | |
1452 | ||
1453 | NLA_PUT_U8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx); | |
1454 | ||
1455 | nla_nest_end(cookie->msg, key); | |
1456 | ||
41ade00f JB |
1457 | return; |
1458 | nla_put_failure: | |
1459 | cookie->error = 1; | |
1460 | } | |
1461 | ||
1462 | static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info) | |
1463 | { | |
4c476991 | 1464 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1465 | int err; |
4c476991 | 1466 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1467 | u8 key_idx = 0; |
e31b8213 JB |
1468 | const u8 *mac_addr = NULL; |
1469 | bool pairwise; | |
41ade00f JB |
1470 | struct get_key_cookie cookie = { |
1471 | .error = 0, | |
1472 | }; | |
1473 | void *hdr; | |
1474 | struct sk_buff *msg; | |
1475 | ||
1476 | if (info->attrs[NL80211_ATTR_KEY_IDX]) | |
1477 | key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); | |
1478 | ||
3cfcf6ac | 1479 | if (key_idx > 5) |
41ade00f JB |
1480 | return -EINVAL; |
1481 | ||
1482 | if (info->attrs[NL80211_ATTR_MAC]) | |
1483 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1484 | ||
e31b8213 JB |
1485 | pairwise = !!mac_addr; |
1486 | if (info->attrs[NL80211_ATTR_KEY_TYPE]) { | |
1487 | u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]); | |
1488 | if (kt >= NUM_NL80211_KEYTYPES) | |
1489 | return -EINVAL; | |
1490 | if (kt != NL80211_KEYTYPE_GROUP && | |
1491 | kt != NL80211_KEYTYPE_PAIRWISE) | |
1492 | return -EINVAL; | |
1493 | pairwise = kt == NL80211_KEYTYPE_PAIRWISE; | |
1494 | } | |
1495 | ||
4c476991 JB |
1496 | if (!rdev->ops->get_key) |
1497 | return -EOPNOTSUPP; | |
41ade00f | 1498 | |
fd2120ca | 1499 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
1500 | if (!msg) |
1501 | return -ENOMEM; | |
41ade00f JB |
1502 | |
1503 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
1504 | NL80211_CMD_NEW_KEY); | |
4c476991 JB |
1505 | if (IS_ERR(hdr)) |
1506 | return PTR_ERR(hdr); | |
41ade00f JB |
1507 | |
1508 | cookie.msg = msg; | |
b9454e83 | 1509 | cookie.idx = key_idx; |
41ade00f JB |
1510 | |
1511 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1512 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx); | |
1513 | if (mac_addr) | |
1514 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1515 | ||
e31b8213 JB |
1516 | if (pairwise && mac_addr && |
1517 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1518 | return -ENOENT; | |
1519 | ||
1520 | err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise, | |
1521 | mac_addr, &cookie, get_key_callback); | |
41ade00f JB |
1522 | |
1523 | if (err) | |
6c95e2a2 | 1524 | goto free_msg; |
41ade00f JB |
1525 | |
1526 | if (cookie.error) | |
1527 | goto nla_put_failure; | |
1528 | ||
1529 | genlmsg_end(msg, hdr); | |
4c476991 | 1530 | return genlmsg_reply(msg, info); |
41ade00f JB |
1531 | |
1532 | nla_put_failure: | |
1533 | err = -ENOBUFS; | |
6c95e2a2 | 1534 | free_msg: |
41ade00f | 1535 | nlmsg_free(msg); |
41ade00f JB |
1536 | return err; |
1537 | } | |
1538 | ||
1539 | static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) | |
1540 | { | |
4c476991 | 1541 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
b9454e83 | 1542 | struct key_parse key; |
41ade00f | 1543 | int err; |
4c476991 | 1544 | struct net_device *dev = info->user_ptr[1]; |
3cfcf6ac JM |
1545 | int (*func)(struct wiphy *wiphy, struct net_device *netdev, |
1546 | u8 key_index); | |
41ade00f | 1547 | |
b9454e83 JB |
1548 | err = nl80211_parse_key(info, &key); |
1549 | if (err) | |
1550 | return err; | |
41ade00f | 1551 | |
b9454e83 | 1552 | if (key.idx < 0) |
41ade00f JB |
1553 | return -EINVAL; |
1554 | ||
b9454e83 JB |
1555 | /* only support setting default key */ |
1556 | if (!key.def && !key.defmgmt) | |
41ade00f JB |
1557 | return -EINVAL; |
1558 | ||
b9454e83 | 1559 | if (key.def) |
79c97e97 | 1560 | func = rdev->ops->set_default_key; |
3cfcf6ac | 1561 | else |
79c97e97 | 1562 | func = rdev->ops->set_default_mgmt_key; |
3cfcf6ac | 1563 | |
4c476991 JB |
1564 | if (!func) |
1565 | return -EOPNOTSUPP; | |
41ade00f | 1566 | |
fffd0934 JB |
1567 | wdev_lock(dev->ieee80211_ptr); |
1568 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1569 | if (!err) | |
1570 | err = func(&rdev->wiphy, dev, key.idx); | |
1571 | ||
3d23e349 | 1572 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1573 | if (!err) { |
79c97e97 | 1574 | if (func == rdev->ops->set_default_key) |
b9454e83 | 1575 | dev->ieee80211_ptr->wext.default_key = key.idx; |
08645126 | 1576 | else |
b9454e83 | 1577 | dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; |
08645126 JB |
1578 | } |
1579 | #endif | |
fffd0934 | 1580 | wdev_unlock(dev->ieee80211_ptr); |
41ade00f | 1581 | |
41ade00f JB |
1582 | return err; |
1583 | } | |
1584 | ||
1585 | static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) | |
1586 | { | |
4c476991 | 1587 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
fffd0934 | 1588 | int err; |
4c476991 | 1589 | struct net_device *dev = info->user_ptr[1]; |
b9454e83 | 1590 | struct key_parse key; |
e31b8213 | 1591 | const u8 *mac_addr = NULL; |
41ade00f | 1592 | |
b9454e83 JB |
1593 | err = nl80211_parse_key(info, &key); |
1594 | if (err) | |
1595 | return err; | |
41ade00f | 1596 | |
b9454e83 | 1597 | if (!key.p.key) |
41ade00f JB |
1598 | return -EINVAL; |
1599 | ||
41ade00f JB |
1600 | if (info->attrs[NL80211_ATTR_MAC]) |
1601 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1602 | ||
e31b8213 JB |
1603 | if (key.type == -1) { |
1604 | if (mac_addr) | |
1605 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1606 | else | |
1607 | key.type = NL80211_KEYTYPE_GROUP; | |
1608 | } | |
1609 | ||
1610 | /* for now */ | |
1611 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1612 | key.type != NL80211_KEYTYPE_GROUP) | |
1613 | return -EINVAL; | |
1614 | ||
4c476991 JB |
1615 | if (!rdev->ops->add_key) |
1616 | return -EOPNOTSUPP; | |
25e47c18 | 1617 | |
e31b8213 JB |
1618 | if (cfg80211_validate_key_settings(rdev, &key.p, key.idx, |
1619 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1620 | mac_addr)) | |
4c476991 | 1621 | return -EINVAL; |
41ade00f | 1622 | |
fffd0934 JB |
1623 | wdev_lock(dev->ieee80211_ptr); |
1624 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
1625 | if (!err) | |
1626 | err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx, | |
e31b8213 | 1627 | key.type == NL80211_KEYTYPE_PAIRWISE, |
fffd0934 JB |
1628 | mac_addr, &key.p); |
1629 | wdev_unlock(dev->ieee80211_ptr); | |
41ade00f | 1630 | |
41ade00f JB |
1631 | return err; |
1632 | } | |
1633 | ||
1634 | static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) | |
1635 | { | |
4c476991 | 1636 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
41ade00f | 1637 | int err; |
4c476991 | 1638 | struct net_device *dev = info->user_ptr[1]; |
41ade00f | 1639 | u8 *mac_addr = NULL; |
b9454e83 | 1640 | struct key_parse key; |
41ade00f | 1641 | |
b9454e83 JB |
1642 | err = nl80211_parse_key(info, &key); |
1643 | if (err) | |
1644 | return err; | |
41ade00f JB |
1645 | |
1646 | if (info->attrs[NL80211_ATTR_MAC]) | |
1647 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1648 | ||
e31b8213 JB |
1649 | if (key.type == -1) { |
1650 | if (mac_addr) | |
1651 | key.type = NL80211_KEYTYPE_PAIRWISE; | |
1652 | else | |
1653 | key.type = NL80211_KEYTYPE_GROUP; | |
1654 | } | |
1655 | ||
1656 | /* for now */ | |
1657 | if (key.type != NL80211_KEYTYPE_PAIRWISE && | |
1658 | key.type != NL80211_KEYTYPE_GROUP) | |
1659 | return -EINVAL; | |
1660 | ||
4c476991 JB |
1661 | if (!rdev->ops->del_key) |
1662 | return -EOPNOTSUPP; | |
41ade00f | 1663 | |
fffd0934 JB |
1664 | wdev_lock(dev->ieee80211_ptr); |
1665 | err = nl80211_key_allowed(dev->ieee80211_ptr); | |
e31b8213 JB |
1666 | |
1667 | if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr && | |
1668 | !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)) | |
1669 | err = -ENOENT; | |
1670 | ||
fffd0934 | 1671 | if (!err) |
e31b8213 JB |
1672 | err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx, |
1673 | key.type == NL80211_KEYTYPE_PAIRWISE, | |
1674 | mac_addr); | |
41ade00f | 1675 | |
3d23e349 | 1676 | #ifdef CONFIG_CFG80211_WEXT |
08645126 | 1677 | if (!err) { |
b9454e83 | 1678 | if (key.idx == dev->ieee80211_ptr->wext.default_key) |
08645126 | 1679 | dev->ieee80211_ptr->wext.default_key = -1; |
b9454e83 | 1680 | else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key) |
08645126 JB |
1681 | dev->ieee80211_ptr->wext.default_mgmt_key = -1; |
1682 | } | |
1683 | #endif | |
fffd0934 | 1684 | wdev_unlock(dev->ieee80211_ptr); |
08645126 | 1685 | |
41ade00f JB |
1686 | return err; |
1687 | } | |
1688 | ||
ed1b6cc7 JB |
1689 | static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info) |
1690 | { | |
1691 | int (*call)(struct wiphy *wiphy, struct net_device *dev, | |
1692 | struct beacon_parameters *info); | |
4c476991 JB |
1693 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1694 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 JB |
1695 | struct beacon_parameters params; |
1696 | int haveinfo = 0; | |
1697 | ||
f4a11bb0 JB |
1698 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL])) |
1699 | return -EINVAL; | |
1700 | ||
074ac8df | 1701 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1702 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1703 | return -EOPNOTSUPP; | |
eec60b03 | 1704 | |
ed1b6cc7 JB |
1705 | switch (info->genlhdr->cmd) { |
1706 | case NL80211_CMD_NEW_BEACON: | |
1707 | /* these are required for NEW_BEACON */ | |
1708 | if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] || | |
1709 | !info->attrs[NL80211_ATTR_DTIM_PERIOD] || | |
4c476991 JB |
1710 | !info->attrs[NL80211_ATTR_BEACON_HEAD]) |
1711 | return -EINVAL; | |
ed1b6cc7 | 1712 | |
79c97e97 | 1713 | call = rdev->ops->add_beacon; |
ed1b6cc7 JB |
1714 | break; |
1715 | case NL80211_CMD_SET_BEACON: | |
79c97e97 | 1716 | call = rdev->ops->set_beacon; |
ed1b6cc7 JB |
1717 | break; |
1718 | default: | |
1719 | WARN_ON(1); | |
4c476991 | 1720 | return -EOPNOTSUPP; |
ed1b6cc7 JB |
1721 | } |
1722 | ||
4c476991 JB |
1723 | if (!call) |
1724 | return -EOPNOTSUPP; | |
ed1b6cc7 JB |
1725 | |
1726 | memset(¶ms, 0, sizeof(params)); | |
1727 | ||
1728 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
1729 | params.interval = | |
1730 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
1731 | haveinfo = 1; | |
1732 | } | |
1733 | ||
1734 | if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) { | |
1735 | params.dtim_period = | |
1736 | nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]); | |
1737 | haveinfo = 1; | |
1738 | } | |
1739 | ||
1740 | if (info->attrs[NL80211_ATTR_BEACON_HEAD]) { | |
1741 | params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1742 | params.head_len = | |
1743 | nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]); | |
1744 | haveinfo = 1; | |
1745 | } | |
1746 | ||
1747 | if (info->attrs[NL80211_ATTR_BEACON_TAIL]) { | |
1748 | params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1749 | params.tail_len = | |
1750 | nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]); | |
1751 | haveinfo = 1; | |
1752 | } | |
1753 | ||
4c476991 JB |
1754 | if (!haveinfo) |
1755 | return -EINVAL; | |
3b85875a | 1756 | |
4c476991 | 1757 | return call(&rdev->wiphy, dev, ¶ms); |
ed1b6cc7 JB |
1758 | } |
1759 | ||
1760 | static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info) | |
1761 | { | |
4c476991 JB |
1762 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1763 | struct net_device *dev = info->user_ptr[1]; | |
ed1b6cc7 | 1764 | |
4c476991 JB |
1765 | if (!rdev->ops->del_beacon) |
1766 | return -EOPNOTSUPP; | |
ed1b6cc7 | 1767 | |
074ac8df | 1768 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
1769 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
1770 | return -EOPNOTSUPP; | |
3b85875a | 1771 | |
4c476991 | 1772 | return rdev->ops->del_beacon(&rdev->wiphy, dev); |
ed1b6cc7 JB |
1773 | } |
1774 | ||
5727ef1b JB |
1775 | static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { |
1776 | [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, | |
1777 | [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, | |
1778 | [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, | |
0e46724a | 1779 | [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, |
5727ef1b JB |
1780 | }; |
1781 | ||
eccb8e8f JB |
1782 | static int parse_station_flags(struct genl_info *info, |
1783 | struct station_parameters *params) | |
5727ef1b JB |
1784 | { |
1785 | struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; | |
eccb8e8f | 1786 | struct nlattr *nla; |
5727ef1b JB |
1787 | int flag; |
1788 | ||
eccb8e8f JB |
1789 | /* |
1790 | * Try parsing the new attribute first so userspace | |
1791 | * can specify both for older kernels. | |
1792 | */ | |
1793 | nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; | |
1794 | if (nla) { | |
1795 | struct nl80211_sta_flag_update *sta_flags; | |
1796 | ||
1797 | sta_flags = nla_data(nla); | |
1798 | params->sta_flags_mask = sta_flags->mask; | |
1799 | params->sta_flags_set = sta_flags->set; | |
1800 | if ((params->sta_flags_mask | | |
1801 | params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) | |
1802 | return -EINVAL; | |
1803 | return 0; | |
1804 | } | |
1805 | ||
1806 | /* if present, parse the old attribute */ | |
5727ef1b | 1807 | |
eccb8e8f | 1808 | nla = info->attrs[NL80211_ATTR_STA_FLAGS]; |
5727ef1b JB |
1809 | if (!nla) |
1810 | return 0; | |
1811 | ||
1812 | if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX, | |
1813 | nla, sta_flags_policy)) | |
1814 | return -EINVAL; | |
1815 | ||
eccb8e8f JB |
1816 | params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; |
1817 | params->sta_flags_mask &= ~1; | |
5727ef1b JB |
1818 | |
1819 | for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) | |
1820 | if (flags[flag]) | |
eccb8e8f | 1821 | params->sta_flags_set |= (1<<flag); |
5727ef1b JB |
1822 | |
1823 | return 0; | |
1824 | } | |
1825 | ||
fd5b74dc JB |
1826 | static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, |
1827 | int flags, struct net_device *dev, | |
98b62183 | 1828 | const u8 *mac_addr, struct station_info *sinfo) |
fd5b74dc JB |
1829 | { |
1830 | void *hdr; | |
420e7fab HR |
1831 | struct nlattr *sinfoattr, *txrate; |
1832 | u16 bitrate; | |
fd5b74dc JB |
1833 | |
1834 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
1835 | if (!hdr) | |
1836 | return -1; | |
1837 | ||
1838 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
1839 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); | |
1840 | ||
f5ea9120 JB |
1841 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, sinfo->generation); |
1842 | ||
2ec600d6 LCC |
1843 | sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); |
1844 | if (!sinfoattr) | |
fd5b74dc | 1845 | goto nla_put_failure; |
2ec600d6 LCC |
1846 | if (sinfo->filled & STATION_INFO_INACTIVE_TIME) |
1847 | NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, | |
1848 | sinfo->inactive_time); | |
1849 | if (sinfo->filled & STATION_INFO_RX_BYTES) | |
1850 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, | |
1851 | sinfo->rx_bytes); | |
1852 | if (sinfo->filled & STATION_INFO_TX_BYTES) | |
1853 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, | |
1854 | sinfo->tx_bytes); | |
1855 | if (sinfo->filled & STATION_INFO_LLID) | |
1856 | NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, | |
1857 | sinfo->llid); | |
1858 | if (sinfo->filled & STATION_INFO_PLID) | |
1859 | NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, | |
1860 | sinfo->plid); | |
1861 | if (sinfo->filled & STATION_INFO_PLINK_STATE) | |
1862 | NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, | |
1863 | sinfo->plink_state); | |
420e7fab HR |
1864 | if (sinfo->filled & STATION_INFO_SIGNAL) |
1865 | NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL, | |
1866 | sinfo->signal); | |
1867 | if (sinfo->filled & STATION_INFO_TX_BITRATE) { | |
1868 | txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE); | |
1869 | if (!txrate) | |
1870 | goto nla_put_failure; | |
1871 | ||
254416aa JL |
1872 | /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */ |
1873 | bitrate = cfg80211_calculate_bitrate(&sinfo->txrate); | |
420e7fab HR |
1874 | if (bitrate > 0) |
1875 | NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate); | |
2ec600d6 | 1876 | |
420e7fab HR |
1877 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS) |
1878 | NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, | |
1879 | sinfo->txrate.mcs); | |
1880 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) | |
1881 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH); | |
1882 | if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI) | |
1883 | NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI); | |
1884 | ||
1885 | nla_nest_end(msg, txrate); | |
1886 | } | |
98c8a60a JM |
1887 | if (sinfo->filled & STATION_INFO_RX_PACKETS) |
1888 | NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS, | |
1889 | sinfo->rx_packets); | |
1890 | if (sinfo->filled & STATION_INFO_TX_PACKETS) | |
1891 | NLA_PUT_U32(msg, NL80211_STA_INFO_TX_PACKETS, | |
1892 | sinfo->tx_packets); | |
2ec600d6 | 1893 | nla_nest_end(msg, sinfoattr); |
fd5b74dc JB |
1894 | |
1895 | return genlmsg_end(msg, hdr); | |
1896 | ||
1897 | nla_put_failure: | |
bc3ed28c TG |
1898 | genlmsg_cancel(msg, hdr); |
1899 | return -EMSGSIZE; | |
fd5b74dc JB |
1900 | } |
1901 | ||
2ec600d6 | 1902 | static int nl80211_dump_station(struct sk_buff *skb, |
bba95fef | 1903 | struct netlink_callback *cb) |
2ec600d6 | 1904 | { |
2ec600d6 LCC |
1905 | struct station_info sinfo; |
1906 | struct cfg80211_registered_device *dev; | |
bba95fef | 1907 | struct net_device *netdev; |
2ec600d6 | 1908 | u8 mac_addr[ETH_ALEN]; |
bba95fef | 1909 | int sta_idx = cb->args[1]; |
2ec600d6 | 1910 | int err; |
2ec600d6 | 1911 | |
67748893 JB |
1912 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
1913 | if (err) | |
1914 | return err; | |
bba95fef JB |
1915 | |
1916 | if (!dev->ops->dump_station) { | |
eec60b03 | 1917 | err = -EOPNOTSUPP; |
bba95fef JB |
1918 | goto out_err; |
1919 | } | |
1920 | ||
bba95fef JB |
1921 | while (1) { |
1922 | err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx, | |
1923 | mac_addr, &sinfo); | |
1924 | if (err == -ENOENT) | |
1925 | break; | |
1926 | if (err) | |
3b85875a | 1927 | goto out_err; |
bba95fef JB |
1928 | |
1929 | if (nl80211_send_station(skb, | |
1930 | NETLINK_CB(cb->skb).pid, | |
1931 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
1932 | netdev, mac_addr, | |
1933 | &sinfo) < 0) | |
1934 | goto out; | |
1935 | ||
1936 | sta_idx++; | |
1937 | } | |
1938 | ||
1939 | ||
1940 | out: | |
1941 | cb->args[1] = sta_idx; | |
1942 | err = skb->len; | |
bba95fef | 1943 | out_err: |
67748893 | 1944 | nl80211_finish_netdev_dump(dev); |
bba95fef JB |
1945 | |
1946 | return err; | |
2ec600d6 | 1947 | } |
fd5b74dc | 1948 | |
5727ef1b JB |
1949 | static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) |
1950 | { | |
4c476991 JB |
1951 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
1952 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 | 1953 | struct station_info sinfo; |
fd5b74dc JB |
1954 | struct sk_buff *msg; |
1955 | u8 *mac_addr = NULL; | |
4c476991 | 1956 | int err; |
fd5b74dc | 1957 | |
2ec600d6 | 1958 | memset(&sinfo, 0, sizeof(sinfo)); |
fd5b74dc JB |
1959 | |
1960 | if (!info->attrs[NL80211_ATTR_MAC]) | |
1961 | return -EINVAL; | |
1962 | ||
1963 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
1964 | ||
4c476991 JB |
1965 | if (!rdev->ops->get_station) |
1966 | return -EOPNOTSUPP; | |
3b85875a | 1967 | |
4c476991 | 1968 | err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo); |
fd5b74dc | 1969 | if (err) |
4c476991 | 1970 | return err; |
2ec600d6 | 1971 | |
fd2120ca | 1972 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
fd5b74dc | 1973 | if (!msg) |
4c476991 | 1974 | return -ENOMEM; |
fd5b74dc JB |
1975 | |
1976 | if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
1977 | dev, mac_addr, &sinfo) < 0) { |
1978 | nlmsg_free(msg); | |
1979 | return -ENOBUFS; | |
1980 | } | |
3b85875a | 1981 | |
4c476991 | 1982 | return genlmsg_reply(msg, info); |
5727ef1b JB |
1983 | } |
1984 | ||
1985 | /* | |
c258d2de | 1986 | * Get vlan interface making sure it is running and on the right wiphy. |
5727ef1b | 1987 | */ |
463d0183 | 1988 | static int get_vlan(struct genl_info *info, |
5727ef1b JB |
1989 | struct cfg80211_registered_device *rdev, |
1990 | struct net_device **vlan) | |
1991 | { | |
463d0183 | 1992 | struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN]; |
5727ef1b JB |
1993 | *vlan = NULL; |
1994 | ||
1995 | if (vlanattr) { | |
463d0183 JB |
1996 | *vlan = dev_get_by_index(genl_info_net(info), |
1997 | nla_get_u32(vlanattr)); | |
5727ef1b JB |
1998 | if (!*vlan) |
1999 | return -ENODEV; | |
2000 | if (!(*vlan)->ieee80211_ptr) | |
2001 | return -EINVAL; | |
2002 | if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy) | |
2003 | return -EINVAL; | |
c258d2de FF |
2004 | if (!netif_running(*vlan)) |
2005 | return -ENETDOWN; | |
5727ef1b JB |
2006 | } |
2007 | return 0; | |
2008 | } | |
2009 | ||
2010 | static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) | |
2011 | { | |
4c476991 | 2012 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2013 | int err; |
4c476991 | 2014 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2015 | struct station_parameters params; |
2016 | u8 *mac_addr = NULL; | |
2017 | ||
2018 | memset(¶ms, 0, sizeof(params)); | |
2019 | ||
2020 | params.listen_interval = -1; | |
2021 | ||
2022 | if (info->attrs[NL80211_ATTR_STA_AID]) | |
2023 | return -EINVAL; | |
2024 | ||
2025 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2026 | return -EINVAL; | |
2027 | ||
2028 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2029 | ||
2030 | if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) { | |
2031 | params.supported_rates = | |
2032 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2033 | params.supported_rates_len = | |
2034 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2035 | } | |
2036 | ||
2037 | if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) | |
2038 | params.listen_interval = | |
2039 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
2040 | ||
36aedc90 JM |
2041 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2042 | params.ht_capa = | |
2043 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
2044 | ||
eccb8e8f | 2045 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2046 | return -EINVAL; |
2047 | ||
2ec600d6 LCC |
2048 | if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) |
2049 | params.plink_action = | |
2050 | nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); | |
2051 | ||
463d0183 | 2052 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2053 | if (err) |
034d655e | 2054 | goto out; |
a97f4424 JB |
2055 | |
2056 | /* validate settings */ | |
2057 | err = 0; | |
2058 | ||
2059 | switch (dev->ieee80211_ptr->iftype) { | |
2060 | case NL80211_IFTYPE_AP: | |
2061 | case NL80211_IFTYPE_AP_VLAN: | |
074ac8df | 2062 | case NL80211_IFTYPE_P2P_GO: |
a97f4424 JB |
2063 | /* disallow mesh-specific things */ |
2064 | if (params.plink_action) | |
2065 | err = -EINVAL; | |
2066 | break; | |
074ac8df | 2067 | case NL80211_IFTYPE_P2P_CLIENT: |
a97f4424 JB |
2068 | case NL80211_IFTYPE_STATION: |
2069 | /* disallow everything but AUTHORIZED flag */ | |
2070 | if (params.plink_action) | |
2071 | err = -EINVAL; | |
2072 | if (params.vlan) | |
2073 | err = -EINVAL; | |
2074 | if (params.supported_rates) | |
2075 | err = -EINVAL; | |
2076 | if (params.ht_capa) | |
2077 | err = -EINVAL; | |
2078 | if (params.listen_interval >= 0) | |
2079 | err = -EINVAL; | |
2080 | if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
2081 | err = -EINVAL; | |
2082 | break; | |
2083 | case NL80211_IFTYPE_MESH_POINT: | |
2084 | /* disallow things mesh doesn't support */ | |
2085 | if (params.vlan) | |
2086 | err = -EINVAL; | |
2087 | if (params.ht_capa) | |
2088 | err = -EINVAL; | |
2089 | if (params.listen_interval >= 0) | |
2090 | err = -EINVAL; | |
2091 | if (params.supported_rates) | |
2092 | err = -EINVAL; | |
2093 | if (params.sta_flags_mask) | |
2094 | err = -EINVAL; | |
2095 | break; | |
2096 | default: | |
2097 | err = -EINVAL; | |
034d655e JB |
2098 | } |
2099 | ||
5727ef1b JB |
2100 | if (err) |
2101 | goto out; | |
2102 | ||
79c97e97 | 2103 | if (!rdev->ops->change_station) { |
5727ef1b JB |
2104 | err = -EOPNOTSUPP; |
2105 | goto out; | |
2106 | } | |
2107 | ||
79c97e97 | 2108 | err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2109 | |
2110 | out: | |
2111 | if (params.vlan) | |
2112 | dev_put(params.vlan); | |
3b85875a | 2113 | |
5727ef1b JB |
2114 | return err; |
2115 | } | |
2116 | ||
2117 | static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) | |
2118 | { | |
4c476991 | 2119 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
5727ef1b | 2120 | int err; |
4c476991 | 2121 | struct net_device *dev = info->user_ptr[1]; |
5727ef1b JB |
2122 | struct station_parameters params; |
2123 | u8 *mac_addr = NULL; | |
2124 | ||
2125 | memset(¶ms, 0, sizeof(params)); | |
2126 | ||
2127 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2128 | return -EINVAL; | |
2129 | ||
5727ef1b JB |
2130 | if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]) |
2131 | return -EINVAL; | |
2132 | ||
2133 | if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) | |
2134 | return -EINVAL; | |
2135 | ||
0e956c13 TLSC |
2136 | if (!info->attrs[NL80211_ATTR_STA_AID]) |
2137 | return -EINVAL; | |
2138 | ||
5727ef1b JB |
2139 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); |
2140 | params.supported_rates = | |
2141 | nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2142 | params.supported_rates_len = | |
2143 | nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]); | |
2144 | params.listen_interval = | |
2145 | nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); | |
51b50fbe | 2146 | |
0e956c13 TLSC |
2147 | params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); |
2148 | if (!params.aid || params.aid > IEEE80211_MAX_AID) | |
2149 | return -EINVAL; | |
51b50fbe | 2150 | |
36aedc90 JM |
2151 | if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) |
2152 | params.ht_capa = | |
2153 | nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); | |
5727ef1b | 2154 | |
eccb8e8f | 2155 | if (parse_station_flags(info, ¶ms)) |
5727ef1b JB |
2156 | return -EINVAL; |
2157 | ||
0e956c13 | 2158 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
074ac8df | 2159 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
4c476991 JB |
2160 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2161 | return -EINVAL; | |
0e956c13 | 2162 | |
463d0183 | 2163 | err = get_vlan(info, rdev, ¶ms.vlan); |
a97f4424 | 2164 | if (err) |
e80cf853 | 2165 | goto out; |
a97f4424 JB |
2166 | |
2167 | /* validate settings */ | |
2168 | err = 0; | |
2169 | ||
79c97e97 | 2170 | if (!rdev->ops->add_station) { |
5727ef1b JB |
2171 | err = -EOPNOTSUPP; |
2172 | goto out; | |
2173 | } | |
2174 | ||
79c97e97 | 2175 | err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms); |
5727ef1b JB |
2176 | |
2177 | out: | |
2178 | if (params.vlan) | |
2179 | dev_put(params.vlan); | |
5727ef1b JB |
2180 | return err; |
2181 | } | |
2182 | ||
2183 | static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) | |
2184 | { | |
4c476991 JB |
2185 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2186 | struct net_device *dev = info->user_ptr[1]; | |
5727ef1b JB |
2187 | u8 *mac_addr = NULL; |
2188 | ||
2189 | if (info->attrs[NL80211_ATTR_MAC]) | |
2190 | mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2191 | ||
e80cf853 | 2192 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
d5d9de02 | 2193 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && |
074ac8df | 2194 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT && |
4c476991 JB |
2195 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2196 | return -EINVAL; | |
5727ef1b | 2197 | |
4c476991 JB |
2198 | if (!rdev->ops->del_station) |
2199 | return -EOPNOTSUPP; | |
3b85875a | 2200 | |
4c476991 | 2201 | return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr); |
5727ef1b JB |
2202 | } |
2203 | ||
2ec600d6 LCC |
2204 | static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, |
2205 | int flags, struct net_device *dev, | |
2206 | u8 *dst, u8 *next_hop, | |
2207 | struct mpath_info *pinfo) | |
2208 | { | |
2209 | void *hdr; | |
2210 | struct nlattr *pinfoattr; | |
2211 | ||
2212 | hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); | |
2213 | if (!hdr) | |
2214 | return -1; | |
2215 | ||
2216 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2217 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst); | |
2218 | NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); | |
2219 | ||
f5ea9120 JB |
2220 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, pinfo->generation); |
2221 | ||
2ec600d6 LCC |
2222 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); |
2223 | if (!pinfoattr) | |
2224 | goto nla_put_failure; | |
2225 | if (pinfo->filled & MPATH_INFO_FRAME_QLEN) | |
2226 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, | |
2227 | pinfo->frame_qlen); | |
d19b3bf6 RP |
2228 | if (pinfo->filled & MPATH_INFO_SN) |
2229 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_SN, | |
2230 | pinfo->sn); | |
2ec600d6 LCC |
2231 | if (pinfo->filled & MPATH_INFO_METRIC) |
2232 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, | |
2233 | pinfo->metric); | |
2234 | if (pinfo->filled & MPATH_INFO_EXPTIME) | |
2235 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, | |
2236 | pinfo->exptime); | |
2237 | if (pinfo->filled & MPATH_INFO_FLAGS) | |
2238 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, | |
2239 | pinfo->flags); | |
2240 | if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) | |
2241 | NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, | |
2242 | pinfo->discovery_timeout); | |
2243 | if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) | |
2244 | NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, | |
2245 | pinfo->discovery_retries); | |
2246 | ||
2247 | nla_nest_end(msg, pinfoattr); | |
2248 | ||
2249 | return genlmsg_end(msg, hdr); | |
2250 | ||
2251 | nla_put_failure: | |
bc3ed28c TG |
2252 | genlmsg_cancel(msg, hdr); |
2253 | return -EMSGSIZE; | |
2ec600d6 LCC |
2254 | } |
2255 | ||
2256 | static int nl80211_dump_mpath(struct sk_buff *skb, | |
bba95fef | 2257 | struct netlink_callback *cb) |
2ec600d6 | 2258 | { |
2ec600d6 LCC |
2259 | struct mpath_info pinfo; |
2260 | struct cfg80211_registered_device *dev; | |
bba95fef | 2261 | struct net_device *netdev; |
2ec600d6 LCC |
2262 | u8 dst[ETH_ALEN]; |
2263 | u8 next_hop[ETH_ALEN]; | |
bba95fef | 2264 | int path_idx = cb->args[1]; |
2ec600d6 | 2265 | int err; |
2ec600d6 | 2266 | |
67748893 JB |
2267 | err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
2268 | if (err) | |
2269 | return err; | |
bba95fef JB |
2270 | |
2271 | if (!dev->ops->dump_mpath) { | |
eec60b03 | 2272 | err = -EOPNOTSUPP; |
bba95fef JB |
2273 | goto out_err; |
2274 | } | |
2275 | ||
eec60b03 JM |
2276 | if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { |
2277 | err = -EOPNOTSUPP; | |
0448b5fc | 2278 | goto out_err; |
eec60b03 JM |
2279 | } |
2280 | ||
bba95fef JB |
2281 | while (1) { |
2282 | err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx, | |
2283 | dst, next_hop, &pinfo); | |
2284 | if (err == -ENOENT) | |
2ec600d6 | 2285 | break; |
bba95fef | 2286 | if (err) |
3b85875a | 2287 | goto out_err; |
2ec600d6 | 2288 | |
bba95fef JB |
2289 | if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid, |
2290 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
2291 | netdev, dst, next_hop, | |
2292 | &pinfo) < 0) | |
2293 | goto out; | |
2ec600d6 | 2294 | |
bba95fef | 2295 | path_idx++; |
2ec600d6 | 2296 | } |
2ec600d6 | 2297 | |
2ec600d6 | 2298 | |
bba95fef JB |
2299 | out: |
2300 | cb->args[1] = path_idx; | |
2301 | err = skb->len; | |
bba95fef | 2302 | out_err: |
67748893 | 2303 | nl80211_finish_netdev_dump(dev); |
bba95fef | 2304 | return err; |
2ec600d6 LCC |
2305 | } |
2306 | ||
2307 | static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) | |
2308 | { | |
4c476991 | 2309 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2ec600d6 | 2310 | int err; |
4c476991 | 2311 | struct net_device *dev = info->user_ptr[1]; |
2ec600d6 LCC |
2312 | struct mpath_info pinfo; |
2313 | struct sk_buff *msg; | |
2314 | u8 *dst = NULL; | |
2315 | u8 next_hop[ETH_ALEN]; | |
2316 | ||
2317 | memset(&pinfo, 0, sizeof(pinfo)); | |
2318 | ||
2319 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2320 | return -EINVAL; | |
2321 | ||
2322 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2323 | ||
4c476991 JB |
2324 | if (!rdev->ops->get_mpath) |
2325 | return -EOPNOTSUPP; | |
2ec600d6 | 2326 | |
4c476991 JB |
2327 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2328 | return -EOPNOTSUPP; | |
eec60b03 | 2329 | |
79c97e97 | 2330 | err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo); |
2ec600d6 | 2331 | if (err) |
4c476991 | 2332 | return err; |
2ec600d6 | 2333 | |
fd2120ca | 2334 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2ec600d6 | 2335 | if (!msg) |
4c476991 | 2336 | return -ENOMEM; |
2ec600d6 LCC |
2337 | |
2338 | if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, | |
4c476991 JB |
2339 | dev, dst, next_hop, &pinfo) < 0) { |
2340 | nlmsg_free(msg); | |
2341 | return -ENOBUFS; | |
2342 | } | |
3b85875a | 2343 | |
4c476991 | 2344 | return genlmsg_reply(msg, info); |
2ec600d6 LCC |
2345 | } |
2346 | ||
2347 | static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) | |
2348 | { | |
4c476991 JB |
2349 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2350 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2351 | u8 *dst = NULL; |
2352 | u8 *next_hop = NULL; | |
2353 | ||
2354 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2355 | return -EINVAL; | |
2356 | ||
2357 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2358 | return -EINVAL; | |
2359 | ||
2360 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2361 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2362 | ||
4c476991 JB |
2363 | if (!rdev->ops->change_mpath) |
2364 | return -EOPNOTSUPP; | |
35a8efe1 | 2365 | |
4c476991 JB |
2366 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2367 | return -EOPNOTSUPP; | |
2ec600d6 | 2368 | |
4c476991 | 2369 | return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 | 2370 | } |
4c476991 | 2371 | |
2ec600d6 LCC |
2372 | static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) |
2373 | { | |
4c476991 JB |
2374 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2375 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2376 | u8 *dst = NULL; |
2377 | u8 *next_hop = NULL; | |
2378 | ||
2379 | if (!info->attrs[NL80211_ATTR_MAC]) | |
2380 | return -EINVAL; | |
2381 | ||
2382 | if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) | |
2383 | return -EINVAL; | |
2384 | ||
2385 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2386 | next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); | |
2387 | ||
4c476991 JB |
2388 | if (!rdev->ops->add_mpath) |
2389 | return -EOPNOTSUPP; | |
35a8efe1 | 2390 | |
4c476991 JB |
2391 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) |
2392 | return -EOPNOTSUPP; | |
2ec600d6 | 2393 | |
4c476991 | 2394 | return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop); |
2ec600d6 LCC |
2395 | } |
2396 | ||
2397 | static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) | |
2398 | { | |
4c476991 JB |
2399 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2400 | struct net_device *dev = info->user_ptr[1]; | |
2ec600d6 LCC |
2401 | u8 *dst = NULL; |
2402 | ||
2403 | if (info->attrs[NL80211_ATTR_MAC]) | |
2404 | dst = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
2405 | ||
4c476991 JB |
2406 | if (!rdev->ops->del_mpath) |
2407 | return -EOPNOTSUPP; | |
3b85875a | 2408 | |
4c476991 | 2409 | return rdev->ops->del_mpath(&rdev->wiphy, dev, dst); |
2ec600d6 LCC |
2410 | } |
2411 | ||
9f1ba906 JM |
2412 | static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) |
2413 | { | |
4c476991 JB |
2414 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2415 | struct net_device *dev = info->user_ptr[1]; | |
9f1ba906 JM |
2416 | struct bss_parameters params; |
2417 | ||
2418 | memset(¶ms, 0, sizeof(params)); | |
2419 | /* default to not changing parameters */ | |
2420 | params.use_cts_prot = -1; | |
2421 | params.use_short_preamble = -1; | |
2422 | params.use_short_slot_time = -1; | |
fd8aaaf3 | 2423 | params.ap_isolate = -1; |
9f1ba906 JM |
2424 | |
2425 | if (info->attrs[NL80211_ATTR_BSS_CTS_PROT]) | |
2426 | params.use_cts_prot = | |
2427 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]); | |
2428 | if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]) | |
2429 | params.use_short_preamble = | |
2430 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]); | |
2431 | if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]) | |
2432 | params.use_short_slot_time = | |
2433 | nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]); | |
90c97a04 JM |
2434 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
2435 | params.basic_rates = | |
2436 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2437 | params.basic_rates_len = | |
2438 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
2439 | } | |
fd8aaaf3 FF |
2440 | if (info->attrs[NL80211_ATTR_AP_ISOLATE]) |
2441 | params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]); | |
9f1ba906 | 2442 | |
4c476991 JB |
2443 | if (!rdev->ops->change_bss) |
2444 | return -EOPNOTSUPP; | |
9f1ba906 | 2445 | |
074ac8df | 2446 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && |
4c476991 JB |
2447 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
2448 | return -EOPNOTSUPP; | |
3b85875a | 2449 | |
4c476991 | 2450 | return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms); |
9f1ba906 JM |
2451 | } |
2452 | ||
b54452b0 | 2453 | static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = { |
b2e1b302 LR |
2454 | [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 }, |
2455 | [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 }, | |
2456 | [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 }, | |
2457 | [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, | |
2458 | [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, | |
2459 | [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, | |
2460 | }; | |
2461 | ||
2462 | static int parse_reg_rule(struct nlattr *tb[], | |
2463 | struct ieee80211_reg_rule *reg_rule) | |
2464 | { | |
2465 | struct ieee80211_freq_range *freq_range = ®_rule->freq_range; | |
2466 | struct ieee80211_power_rule *power_rule = ®_rule->power_rule; | |
2467 | ||
2468 | if (!tb[NL80211_ATTR_REG_RULE_FLAGS]) | |
2469 | return -EINVAL; | |
2470 | if (!tb[NL80211_ATTR_FREQ_RANGE_START]) | |
2471 | return -EINVAL; | |
2472 | if (!tb[NL80211_ATTR_FREQ_RANGE_END]) | |
2473 | return -EINVAL; | |
2474 | if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]) | |
2475 | return -EINVAL; | |
2476 | if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]) | |
2477 | return -EINVAL; | |
2478 | ||
2479 | reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]); | |
2480 | ||
2481 | freq_range->start_freq_khz = | |
2482 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]); | |
2483 | freq_range->end_freq_khz = | |
2484 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]); | |
2485 | freq_range->max_bandwidth_khz = | |
2486 | nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]); | |
2487 | ||
2488 | power_rule->max_eirp = | |
2489 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]); | |
2490 | ||
2491 | if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]) | |
2492 | power_rule->max_antenna_gain = | |
2493 | nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); | |
2494 | ||
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) | |
2499 | { | |
2500 | int r; | |
2501 | char *data = NULL; | |
2502 | ||
80778f18 LR |
2503 | /* |
2504 | * You should only get this when cfg80211 hasn't yet initialized | |
2505 | * completely when built-in to the kernel right between the time | |
2506 | * window between nl80211_init() and regulatory_init(), if that is | |
2507 | * even possible. | |
2508 | */ | |
2509 | mutex_lock(&cfg80211_mutex); | |
2510 | if (unlikely(!cfg80211_regdomain)) { | |
fe33eb39 LR |
2511 | mutex_unlock(&cfg80211_mutex); |
2512 | return -EINPROGRESS; | |
80778f18 | 2513 | } |
fe33eb39 | 2514 | mutex_unlock(&cfg80211_mutex); |
80778f18 | 2515 | |
fe33eb39 LR |
2516 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) |
2517 | return -EINVAL; | |
b2e1b302 LR |
2518 | |
2519 | data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2520 | ||
fe33eb39 LR |
2521 | r = regulatory_hint_user(data); |
2522 | ||
b2e1b302 LR |
2523 | return r; |
2524 | } | |
2525 | ||
93da9cc1 | 2526 | static int nl80211_get_mesh_params(struct sk_buff *skb, |
2527 | struct genl_info *info) | |
2528 | { | |
4c476991 | 2529 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
93da9cc1 | 2530 | struct mesh_config cur_params; |
2531 | int err; | |
4c476991 | 2532 | struct net_device *dev = info->user_ptr[1]; |
93da9cc1 | 2533 | void *hdr; |
2534 | struct nlattr *pinfoattr; | |
2535 | struct sk_buff *msg; | |
2536 | ||
4c476991 JB |
2537 | if (!rdev->ops->get_mesh_params) |
2538 | return -EOPNOTSUPP; | |
f3f92586 | 2539 | |
93da9cc1 | 2540 | /* Get the mesh params */ |
79c97e97 | 2541 | err = rdev->ops->get_mesh_params(&rdev->wiphy, dev, &cur_params); |
93da9cc1 | 2542 | if (err) |
4c476991 | 2543 | return err; |
93da9cc1 | 2544 | |
2545 | /* Draw up a netlink message to send back */ | |
fd2120ca | 2546 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
4c476991 JB |
2547 | if (!msg) |
2548 | return -ENOMEM; | |
93da9cc1 | 2549 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, |
2550 | NL80211_CMD_GET_MESH_PARAMS); | |
2551 | if (!hdr) | |
2552 | goto nla_put_failure; | |
2553 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_PARAMS); | |
2554 | if (!pinfoattr) | |
2555 | goto nla_put_failure; | |
2556 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
2557 | NLA_PUT_U16(msg, NL80211_MESHCONF_RETRY_TIMEOUT, | |
2558 | cur_params.dot11MeshRetryTimeout); | |
2559 | NLA_PUT_U16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT, | |
2560 | cur_params.dot11MeshConfirmTimeout); | |
2561 | NLA_PUT_U16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT, | |
2562 | cur_params.dot11MeshHoldingTimeout); | |
2563 | NLA_PUT_U16(msg, NL80211_MESHCONF_MAX_PEER_LINKS, | |
2564 | cur_params.dot11MeshMaxPeerLinks); | |
2565 | NLA_PUT_U8(msg, NL80211_MESHCONF_MAX_RETRIES, | |
2566 | cur_params.dot11MeshMaxRetries); | |
2567 | NLA_PUT_U8(msg, NL80211_MESHCONF_TTL, | |
2568 | cur_params.dot11MeshTTL); | |
2569 | NLA_PUT_U8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, | |
2570 | cur_params.auto_open_plinks); | |
2571 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2572 | cur_params.dot11MeshHWMPmaxPREQretries); | |
2573 | NLA_PUT_U32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME, | |
2574 | cur_params.path_refresh_time); | |
2575 | NLA_PUT_U16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2576 | cur_params.min_discovery_timeout); | |
2577 | NLA_PUT_U32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2578 | cur_params.dot11MeshHWMPactivePathTimeout); | |
2579 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2580 | cur_params.dot11MeshHWMPpreqMinInterval); | |
2581 | NLA_PUT_U16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2582 | cur_params.dot11MeshHWMPnetDiameterTraversalTime); | |
63c5723b RP |
2583 | NLA_PUT_U8(msg, NL80211_MESHCONF_HWMP_ROOTMODE, |
2584 | cur_params.dot11MeshHWMPRootMode); | |
93da9cc1 | 2585 | nla_nest_end(msg, pinfoattr); |
2586 | genlmsg_end(msg, hdr); | |
4c476991 | 2587 | return genlmsg_reply(msg, info); |
93da9cc1 | 2588 | |
3b85875a | 2589 | nla_put_failure: |
93da9cc1 | 2590 | genlmsg_cancel(msg, hdr); |
d080e275 | 2591 | nlmsg_free(msg); |
4c476991 | 2592 | return -ENOBUFS; |
93da9cc1 | 2593 | } |
2594 | ||
2595 | #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \ | |
2596 | do {\ | |
2597 | if (table[attr_num]) {\ | |
2598 | cfg.param = nla_fn(table[attr_num]); \ | |
2599 | mask |= (1 << (attr_num - 1)); \ | |
2600 | } \ | |
2601 | } while (0);\ | |
2602 | ||
b54452b0 | 2603 | static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = { |
93da9cc1 | 2604 | [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 }, |
2605 | [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 }, | |
2606 | [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 }, | |
2607 | [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 }, | |
2608 | [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 }, | |
2609 | [NL80211_MESHCONF_TTL] = { .type = NLA_U8 }, | |
2610 | [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 }, | |
2611 | ||
2612 | [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 }, | |
2613 | [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 }, | |
2614 | [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 }, | |
2615 | [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 }, | |
2616 | [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 }, | |
2617 | [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 }, | |
2618 | }; | |
2619 | ||
2620 | static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info) | |
2621 | { | |
93da9cc1 | 2622 | u32 mask; |
4c476991 JB |
2623 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2624 | struct net_device *dev = info->user_ptr[1]; | |
93da9cc1 | 2625 | struct mesh_config cfg; |
2626 | struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1]; | |
2627 | struct nlattr *parent_attr; | |
2628 | ||
2629 | parent_attr = info->attrs[NL80211_ATTR_MESH_PARAMS]; | |
2630 | if (!parent_attr) | |
2631 | return -EINVAL; | |
2632 | if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX, | |
2633 | parent_attr, nl80211_meshconf_params_policy)) | |
2634 | return -EINVAL; | |
2635 | ||
4c476991 JB |
2636 | if (!rdev->ops->set_mesh_params) |
2637 | return -EOPNOTSUPP; | |
f3f92586 | 2638 | |
93da9cc1 | 2639 | /* This makes sure that there aren't more than 32 mesh config |
2640 | * parameters (otherwise our bitfield scheme would not work.) */ | |
2641 | BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32); | |
2642 | ||
2643 | /* Fill in the params struct */ | |
2644 | mask = 0; | |
2645 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, | |
2646 | mask, NL80211_MESHCONF_RETRY_TIMEOUT, nla_get_u16); | |
2647 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, | |
2648 | mask, NL80211_MESHCONF_CONFIRM_TIMEOUT, nla_get_u16); | |
2649 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, | |
2650 | mask, NL80211_MESHCONF_HOLDING_TIMEOUT, nla_get_u16); | |
2651 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, | |
2652 | mask, NL80211_MESHCONF_MAX_PEER_LINKS, nla_get_u16); | |
2653 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, | |
2654 | mask, NL80211_MESHCONF_MAX_RETRIES, nla_get_u8); | |
2655 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, | |
2656 | mask, NL80211_MESHCONF_TTL, nla_get_u8); | |
2657 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, | |
2658 | mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS, nla_get_u8); | |
2659 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, | |
2660 | mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, | |
2661 | nla_get_u8); | |
2662 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, | |
2663 | mask, NL80211_MESHCONF_PATH_REFRESH_TIME, nla_get_u32); | |
2664 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, | |
2665 | mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, | |
2666 | nla_get_u16); | |
2667 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, | |
2668 | mask, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, | |
2669 | nla_get_u32); | |
2670 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval, | |
2671 | mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, | |
2672 | nla_get_u16); | |
2673 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, | |
2674 | dot11MeshHWMPnetDiameterTraversalTime, | |
2675 | mask, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
2676 | nla_get_u16); | |
63c5723b RP |
2677 | FILL_IN_MESH_PARAM_IF_SET(tb, cfg, |
2678 | dot11MeshHWMPRootMode, mask, | |
2679 | NL80211_MESHCONF_HWMP_ROOTMODE, | |
2680 | nla_get_u8); | |
93da9cc1 | 2681 | |
2682 | /* Apply changes */ | |
4c476991 | 2683 | return rdev->ops->set_mesh_params(&rdev->wiphy, dev, &cfg, mask); |
93da9cc1 | 2684 | } |
2685 | ||
2686 | #undef FILL_IN_MESH_PARAM_IF_SET | |
2687 | ||
f130347c LR |
2688 | static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) |
2689 | { | |
2690 | struct sk_buff *msg; | |
2691 | void *hdr = NULL; | |
2692 | struct nlattr *nl_reg_rules; | |
2693 | unsigned int i; | |
2694 | int err = -EINVAL; | |
2695 | ||
a1794390 | 2696 | mutex_lock(&cfg80211_mutex); |
f130347c LR |
2697 | |
2698 | if (!cfg80211_regdomain) | |
2699 | goto out; | |
2700 | ||
fd2120ca | 2701 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
f130347c LR |
2702 | if (!msg) { |
2703 | err = -ENOBUFS; | |
2704 | goto out; | |
2705 | } | |
2706 | ||
2707 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2708 | NL80211_CMD_GET_REG); | |
2709 | if (!hdr) | |
2710 | goto nla_put_failure; | |
2711 | ||
2712 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, | |
2713 | cfg80211_regdomain->alpha2); | |
2714 | ||
2715 | nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES); | |
2716 | if (!nl_reg_rules) | |
2717 | goto nla_put_failure; | |
2718 | ||
2719 | for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) { | |
2720 | struct nlattr *nl_reg_rule; | |
2721 | const struct ieee80211_reg_rule *reg_rule; | |
2722 | const struct ieee80211_freq_range *freq_range; | |
2723 | const struct ieee80211_power_rule *power_rule; | |
2724 | ||
2725 | reg_rule = &cfg80211_regdomain->reg_rules[i]; | |
2726 | freq_range = ®_rule->freq_range; | |
2727 | power_rule = ®_rule->power_rule; | |
2728 | ||
2729 | nl_reg_rule = nla_nest_start(msg, i); | |
2730 | if (!nl_reg_rule) | |
2731 | goto nla_put_failure; | |
2732 | ||
2733 | NLA_PUT_U32(msg, NL80211_ATTR_REG_RULE_FLAGS, | |
2734 | reg_rule->flags); | |
2735 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_START, | |
2736 | freq_range->start_freq_khz); | |
2737 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_END, | |
2738 | freq_range->end_freq_khz); | |
2739 | NLA_PUT_U32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, | |
2740 | freq_range->max_bandwidth_khz); | |
2741 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, | |
2742 | power_rule->max_antenna_gain); | |
2743 | NLA_PUT_U32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, | |
2744 | power_rule->max_eirp); | |
2745 | ||
2746 | nla_nest_end(msg, nl_reg_rule); | |
2747 | } | |
2748 | ||
2749 | nla_nest_end(msg, nl_reg_rules); | |
2750 | ||
2751 | genlmsg_end(msg, hdr); | |
134e6375 | 2752 | err = genlmsg_reply(msg, info); |
f130347c LR |
2753 | goto out; |
2754 | ||
2755 | nla_put_failure: | |
2756 | genlmsg_cancel(msg, hdr); | |
d080e275 | 2757 | nlmsg_free(msg); |
f130347c LR |
2758 | err = -EMSGSIZE; |
2759 | out: | |
a1794390 | 2760 | mutex_unlock(&cfg80211_mutex); |
f130347c LR |
2761 | return err; |
2762 | } | |
2763 | ||
b2e1b302 LR |
2764 | static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) |
2765 | { | |
2766 | struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; | |
2767 | struct nlattr *nl_reg_rule; | |
2768 | char *alpha2 = NULL; | |
2769 | int rem_reg_rules = 0, r = 0; | |
2770 | u32 num_rules = 0, rule_idx = 0, size_of_regd; | |
2771 | struct ieee80211_regdomain *rd = NULL; | |
2772 | ||
2773 | if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) | |
2774 | return -EINVAL; | |
2775 | ||
2776 | if (!info->attrs[NL80211_ATTR_REG_RULES]) | |
2777 | return -EINVAL; | |
2778 | ||
2779 | alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); | |
2780 | ||
2781 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2782 | rem_reg_rules) { | |
2783 | num_rules++; | |
2784 | if (num_rules > NL80211_MAX_SUPP_REG_RULES) | |
4776c6e7 | 2785 | return -EINVAL; |
b2e1b302 LR |
2786 | } |
2787 | ||
61405e97 LR |
2788 | mutex_lock(&cfg80211_mutex); |
2789 | ||
d0e18f83 LR |
2790 | if (!reg_is_valid_request(alpha2)) { |
2791 | r = -EINVAL; | |
2792 | goto bad_reg; | |
2793 | } | |
b2e1b302 LR |
2794 | |
2795 | size_of_regd = sizeof(struct ieee80211_regdomain) + | |
2796 | (num_rules * sizeof(struct ieee80211_reg_rule)); | |
2797 | ||
2798 | rd = kzalloc(size_of_regd, GFP_KERNEL); | |
d0e18f83 LR |
2799 | if (!rd) { |
2800 | r = -ENOMEM; | |
2801 | goto bad_reg; | |
2802 | } | |
b2e1b302 LR |
2803 | |
2804 | rd->n_reg_rules = num_rules; | |
2805 | rd->alpha2[0] = alpha2[0]; | |
2806 | rd->alpha2[1] = alpha2[1]; | |
2807 | ||
2808 | nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], | |
2809 | rem_reg_rules) { | |
2810 | nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, | |
2811 | nla_data(nl_reg_rule), nla_len(nl_reg_rule), | |
2812 | reg_rule_policy); | |
2813 | r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); | |
2814 | if (r) | |
2815 | goto bad_reg; | |
2816 | ||
2817 | rule_idx++; | |
2818 | ||
d0e18f83 LR |
2819 | if (rule_idx > NL80211_MAX_SUPP_REG_RULES) { |
2820 | r = -EINVAL; | |
b2e1b302 | 2821 | goto bad_reg; |
d0e18f83 | 2822 | } |
b2e1b302 LR |
2823 | } |
2824 | ||
2825 | BUG_ON(rule_idx != num_rules); | |
2826 | ||
b2e1b302 | 2827 | r = set_regdom(rd); |
61405e97 | 2828 | |
a1794390 | 2829 | mutex_unlock(&cfg80211_mutex); |
d0e18f83 | 2830 | |
b2e1b302 LR |
2831 | return r; |
2832 | ||
d2372b31 | 2833 | bad_reg: |
61405e97 | 2834 | mutex_unlock(&cfg80211_mutex); |
b2e1b302 | 2835 | kfree(rd); |
d0e18f83 | 2836 | return r; |
b2e1b302 LR |
2837 | } |
2838 | ||
83f5e2cf JB |
2839 | static int validate_scan_freqs(struct nlattr *freqs) |
2840 | { | |
2841 | struct nlattr *attr1, *attr2; | |
2842 | int n_channels = 0, tmp1, tmp2; | |
2843 | ||
2844 | nla_for_each_nested(attr1, freqs, tmp1) { | |
2845 | n_channels++; | |
2846 | /* | |
2847 | * Some hardware has a limited channel list for | |
2848 | * scanning, and it is pretty much nonsensical | |
2849 | * to scan for a channel twice, so disallow that | |
2850 | * and don't require drivers to check that the | |
2851 | * channel list they get isn't longer than what | |
2852 | * they can scan, as long as they can scan all | |
2853 | * the channels they registered at once. | |
2854 | */ | |
2855 | nla_for_each_nested(attr2, freqs, tmp2) | |
2856 | if (attr1 != attr2 && | |
2857 | nla_get_u32(attr1) == nla_get_u32(attr2)) | |
2858 | return 0; | |
2859 | } | |
2860 | ||
2861 | return n_channels; | |
2862 | } | |
2863 | ||
2a519311 JB |
2864 | static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) |
2865 | { | |
4c476991 JB |
2866 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
2867 | struct net_device *dev = info->user_ptr[1]; | |
2a519311 JB |
2868 | struct cfg80211_scan_request *request; |
2869 | struct cfg80211_ssid *ssid; | |
2870 | struct ieee80211_channel *channel; | |
2871 | struct nlattr *attr; | |
2872 | struct wiphy *wiphy; | |
83f5e2cf | 2873 | int err, tmp, n_ssids = 0, n_channels, i; |
2a519311 | 2874 | enum ieee80211_band band; |
70692ad2 | 2875 | size_t ie_len; |
2a519311 | 2876 | |
f4a11bb0 JB |
2877 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
2878 | return -EINVAL; | |
2879 | ||
79c97e97 | 2880 | wiphy = &rdev->wiphy; |
2a519311 | 2881 | |
4c476991 JB |
2882 | if (!rdev->ops->scan) |
2883 | return -EOPNOTSUPP; | |
2a519311 | 2884 | |
4c476991 JB |
2885 | if (rdev->scan_req) |
2886 | return -EBUSY; | |
2a519311 JB |
2887 | |
2888 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { | |
83f5e2cf JB |
2889 | n_channels = validate_scan_freqs( |
2890 | info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); | |
4c476991 JB |
2891 | if (!n_channels) |
2892 | return -EINVAL; | |
2a519311 | 2893 | } else { |
83f5e2cf JB |
2894 | n_channels = 0; |
2895 | ||
2a519311 JB |
2896 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) |
2897 | if (wiphy->bands[band]) | |
2898 | n_channels += wiphy->bands[band]->n_channels; | |
2899 | } | |
2900 | ||
2901 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) | |
2902 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) | |
2903 | n_ssids++; | |
2904 | ||
4c476991 JB |
2905 | if (n_ssids > wiphy->max_scan_ssids) |
2906 | return -EINVAL; | |
2a519311 | 2907 | |
70692ad2 JM |
2908 | if (info->attrs[NL80211_ATTR_IE]) |
2909 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
2910 | else | |
2911 | ie_len = 0; | |
2912 | ||
4c476991 JB |
2913 | if (ie_len > wiphy->max_scan_ie_len) |
2914 | return -EINVAL; | |
18a83659 | 2915 | |
2a519311 JB |
2916 | request = kzalloc(sizeof(*request) |
2917 | + sizeof(*ssid) * n_ssids | |
70692ad2 JM |
2918 | + sizeof(channel) * n_channels |
2919 | + ie_len, GFP_KERNEL); | |
4c476991 JB |
2920 | if (!request) |
2921 | return -ENOMEM; | |
2a519311 | 2922 | |
2a519311 | 2923 | if (n_ssids) |
5ba63533 | 2924 | request->ssids = (void *)&request->channels[n_channels]; |
2a519311 | 2925 | request->n_ssids = n_ssids; |
70692ad2 JM |
2926 | if (ie_len) { |
2927 | if (request->ssids) | |
2928 | request->ie = (void *)(request->ssids + n_ssids); | |
2929 | else | |
2930 | request->ie = (void *)(request->channels + n_channels); | |
2931 | } | |
2a519311 | 2932 | |
584991dc | 2933 | i = 0; |
2a519311 JB |
2934 | if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { |
2935 | /* user specified, bail out if channel not found */ | |
2a519311 | 2936 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { |
584991dc JB |
2937 | struct ieee80211_channel *chan; |
2938 | ||
2939 | chan = ieee80211_get_channel(wiphy, nla_get_u32(attr)); | |
2940 | ||
2941 | if (!chan) { | |
2a519311 JB |
2942 | err = -EINVAL; |
2943 | goto out_free; | |
2944 | } | |
584991dc JB |
2945 | |
2946 | /* ignore disabled channels */ | |
2947 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2948 | continue; | |
2949 | ||
2950 | request->channels[i] = chan; | |
2a519311 JB |
2951 | i++; |
2952 | } | |
2953 | } else { | |
2954 | /* all channels */ | |
2a519311 JB |
2955 | for (band = 0; band < IEEE80211_NUM_BANDS; band++) { |
2956 | int j; | |
2957 | if (!wiphy->bands[band]) | |
2958 | continue; | |
2959 | for (j = 0; j < wiphy->bands[band]->n_channels; j++) { | |
584991dc JB |
2960 | struct ieee80211_channel *chan; |
2961 | ||
2962 | chan = &wiphy->bands[band]->channels[j]; | |
2963 | ||
2964 | if (chan->flags & IEEE80211_CHAN_DISABLED) | |
2965 | continue; | |
2966 | ||
2967 | request->channels[i] = chan; | |
2a519311 JB |
2968 | i++; |
2969 | } | |
2970 | } | |
2971 | } | |
2972 | ||
584991dc JB |
2973 | if (!i) { |
2974 | err = -EINVAL; | |
2975 | goto out_free; | |
2976 | } | |
2977 | ||
2978 | request->n_channels = i; | |
2979 | ||
2a519311 JB |
2980 | i = 0; |
2981 | if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { | |
2982 | nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { | |
2983 | if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { | |
2984 | err = -EINVAL; | |
2985 | goto out_free; | |
2986 | } | |
2987 | memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); | |
2988 | request->ssids[i].ssid_len = nla_len(attr); | |
2989 | i++; | |
2990 | } | |
2991 | } | |
2992 | ||
70692ad2 JM |
2993 | if (info->attrs[NL80211_ATTR_IE]) { |
2994 | request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
de95a54b JB |
2995 | memcpy((void *)request->ie, |
2996 | nla_data(info->attrs[NL80211_ATTR_IE]), | |
70692ad2 JM |
2997 | request->ie_len); |
2998 | } | |
2999 | ||
463d0183 | 3000 | request->dev = dev; |
79c97e97 | 3001 | request->wiphy = &rdev->wiphy; |
2a519311 | 3002 | |
79c97e97 JB |
3003 | rdev->scan_req = request; |
3004 | err = rdev->ops->scan(&rdev->wiphy, dev, request); | |
2a519311 | 3005 | |
463d0183 | 3006 | if (!err) { |
79c97e97 | 3007 | nl80211_send_scan_start(rdev, dev); |
463d0183 | 3008 | dev_hold(dev); |
4c476991 | 3009 | } else { |
2a519311 | 3010 | out_free: |
79c97e97 | 3011 | rdev->scan_req = NULL; |
2a519311 JB |
3012 | kfree(request); |
3013 | } | |
3b85875a | 3014 | |
2a519311 JB |
3015 | return err; |
3016 | } | |
3017 | ||
3018 | static int nl80211_send_bss(struct sk_buff *msg, u32 pid, u32 seq, int flags, | |
3019 | struct cfg80211_registered_device *rdev, | |
48ab905d JB |
3020 | struct wireless_dev *wdev, |
3021 | struct cfg80211_internal_bss *intbss) | |
2a519311 | 3022 | { |
48ab905d | 3023 | struct cfg80211_bss *res = &intbss->pub; |
2a519311 JB |
3024 | void *hdr; |
3025 | struct nlattr *bss; | |
48ab905d JB |
3026 | int i; |
3027 | ||
3028 | ASSERT_WDEV_LOCK(wdev); | |
2a519311 JB |
3029 | |
3030 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3031 | NL80211_CMD_NEW_SCAN_RESULTS); | |
3032 | if (!hdr) | |
3033 | return -1; | |
3034 | ||
f5ea9120 | 3035 | NLA_PUT_U32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation); |
48ab905d | 3036 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex); |
2a519311 JB |
3037 | |
3038 | bss = nla_nest_start(msg, NL80211_ATTR_BSS); | |
3039 | if (!bss) | |
3040 | goto nla_put_failure; | |
3041 | if (!is_zero_ether_addr(res->bssid)) | |
3042 | NLA_PUT(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid); | |
3043 | if (res->information_elements && res->len_information_elements) | |
3044 | NLA_PUT(msg, NL80211_BSS_INFORMATION_ELEMENTS, | |
3045 | res->len_information_elements, | |
3046 | res->information_elements); | |
34a6eddb JM |
3047 | if (res->beacon_ies && res->len_beacon_ies && |
3048 | res->beacon_ies != res->information_elements) | |
3049 | NLA_PUT(msg, NL80211_BSS_BEACON_IES, | |
3050 | res->len_beacon_ies, res->beacon_ies); | |
2a519311 JB |
3051 | if (res->tsf) |
3052 | NLA_PUT_U64(msg, NL80211_BSS_TSF, res->tsf); | |
3053 | if (res->beacon_interval) | |
3054 | NLA_PUT_U16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval); | |
3055 | NLA_PUT_U16(msg, NL80211_BSS_CAPABILITY, res->capability); | |
3056 | NLA_PUT_U32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq); | |
7c89606e HS |
3057 | NLA_PUT_U32(msg, NL80211_BSS_SEEN_MS_AGO, |
3058 | jiffies_to_msecs(jiffies - intbss->ts)); | |
2a519311 | 3059 | |
77965c97 | 3060 | switch (rdev->wiphy.signal_type) { |
2a519311 JB |
3061 | case CFG80211_SIGNAL_TYPE_MBM: |
3062 | NLA_PUT_U32(msg, NL80211_BSS_SIGNAL_MBM, res->signal); | |
3063 | break; | |
3064 | case CFG80211_SIGNAL_TYPE_UNSPEC: | |
3065 | NLA_PUT_U8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal); | |
3066 | break; | |
3067 | default: | |
3068 | break; | |
3069 | } | |
3070 | ||
48ab905d | 3071 | switch (wdev->iftype) { |
074ac8df | 3072 | case NL80211_IFTYPE_P2P_CLIENT: |
48ab905d JB |
3073 | case NL80211_IFTYPE_STATION: |
3074 | if (intbss == wdev->current_bss) | |
3075 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3076 | NL80211_BSS_STATUS_ASSOCIATED); | |
3077 | else for (i = 0; i < MAX_AUTH_BSSES; i++) { | |
3078 | if (intbss != wdev->auth_bsses[i]) | |
3079 | continue; | |
3080 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3081 | NL80211_BSS_STATUS_AUTHENTICATED); | |
3082 | break; | |
3083 | } | |
3084 | break; | |
3085 | case NL80211_IFTYPE_ADHOC: | |
3086 | if (intbss == wdev->current_bss) | |
3087 | NLA_PUT_U32(msg, NL80211_BSS_STATUS, | |
3088 | NL80211_BSS_STATUS_IBSS_JOINED); | |
3089 | break; | |
3090 | default: | |
3091 | break; | |
3092 | } | |
3093 | ||
2a519311 JB |
3094 | nla_nest_end(msg, bss); |
3095 | ||
3096 | return genlmsg_end(msg, hdr); | |
3097 | ||
3098 | nla_put_failure: | |
3099 | genlmsg_cancel(msg, hdr); | |
3100 | return -EMSGSIZE; | |
3101 | } | |
3102 | ||
3103 | static int nl80211_dump_scan(struct sk_buff *skb, | |
3104 | struct netlink_callback *cb) | |
3105 | { | |
48ab905d JB |
3106 | struct cfg80211_registered_device *rdev; |
3107 | struct net_device *dev; | |
2a519311 | 3108 | struct cfg80211_internal_bss *scan; |
48ab905d | 3109 | struct wireless_dev *wdev; |
2a519311 JB |
3110 | int start = cb->args[1], idx = 0; |
3111 | int err; | |
3112 | ||
67748893 JB |
3113 | err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev); |
3114 | if (err) | |
3115 | return err; | |
2a519311 | 3116 | |
48ab905d | 3117 | wdev = dev->ieee80211_ptr; |
2a519311 | 3118 | |
48ab905d JB |
3119 | wdev_lock(wdev); |
3120 | spin_lock_bh(&rdev->bss_lock); | |
3121 | cfg80211_bss_expire(rdev); | |
3122 | ||
3123 | list_for_each_entry(scan, &rdev->bss_list, list) { | |
2a519311 JB |
3124 | if (++idx <= start) |
3125 | continue; | |
3126 | if (nl80211_send_bss(skb, | |
3127 | NETLINK_CB(cb->skb).pid, | |
3128 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
48ab905d | 3129 | rdev, wdev, scan) < 0) { |
2a519311 | 3130 | idx--; |
67748893 | 3131 | break; |
2a519311 JB |
3132 | } |
3133 | } | |
3134 | ||
48ab905d JB |
3135 | spin_unlock_bh(&rdev->bss_lock); |
3136 | wdev_unlock(wdev); | |
2a519311 JB |
3137 | |
3138 | cb->args[1] = idx; | |
67748893 | 3139 | nl80211_finish_netdev_dump(rdev); |
2a519311 | 3140 | |
67748893 | 3141 | return skb->len; |
2a519311 JB |
3142 | } |
3143 | ||
61fa713c HS |
3144 | static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq, |
3145 | int flags, struct net_device *dev, | |
3146 | struct survey_info *survey) | |
3147 | { | |
3148 | void *hdr; | |
3149 | struct nlattr *infoattr; | |
3150 | ||
3151 | /* Survey without a channel doesn't make sense */ | |
3152 | if (!survey->channel) | |
3153 | return -EINVAL; | |
3154 | ||
3155 | hdr = nl80211hdr_put(msg, pid, seq, flags, | |
3156 | NL80211_CMD_NEW_SURVEY_RESULTS); | |
3157 | if (!hdr) | |
3158 | return -ENOMEM; | |
3159 | ||
3160 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); | |
3161 | ||
3162 | infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO); | |
3163 | if (!infoattr) | |
3164 | goto nla_put_failure; | |
3165 | ||
3166 | NLA_PUT_U32(msg, NL80211_SURVEY_INFO_FREQUENCY, | |
3167 | survey->channel->center_freq); | |
3168 | if (survey->filled & SURVEY_INFO_NOISE_DBM) | |
3169 | NLA_PUT_U8(msg, NL80211_SURVEY_INFO_NOISE, | |
3170 | survey->noise); | |
17e5a808 FF |
3171 | if (survey->filled & SURVEY_INFO_IN_USE) |
3172 | NLA_PUT_FLAG(msg, NL80211_SURVEY_INFO_IN_USE); | |
61fa713c HS |
3173 | |
3174 | nla_nest_end(msg, infoattr); | |
3175 | ||
3176 | return genlmsg_end(msg, hdr); | |
3177 | ||
3178 | nla_put_failure: | |
3179 | genlmsg_cancel(msg, hdr); | |
3180 | return -EMSGSIZE; | |
3181 | } | |
3182 | ||
3183 | static int nl80211_dump_survey(struct sk_buff *skb, | |
3184 | struct netlink_callback *cb) | |
3185 | { | |
3186 | struct survey_info survey; | |
3187 | struct cfg80211_registered_device *dev; | |
3188 | struct net_device *netdev; | |
61fa713c HS |
3189 | int survey_idx = cb->args[1]; |
3190 | int res; | |
3191 | ||
67748893 JB |
3192 | res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev); |
3193 | if (res) | |
3194 | return res; | |
61fa713c HS |
3195 | |
3196 | if (!dev->ops->dump_survey) { | |
3197 | res = -EOPNOTSUPP; | |
3198 | goto out_err; | |
3199 | } | |
3200 | ||
3201 | while (1) { | |
3202 | res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx, | |
3203 | &survey); | |
3204 | if (res == -ENOENT) | |
3205 | break; | |
3206 | if (res) | |
3207 | goto out_err; | |
3208 | ||
3209 | if (nl80211_send_survey(skb, | |
3210 | NETLINK_CB(cb->skb).pid, | |
3211 | cb->nlh->nlmsg_seq, NLM_F_MULTI, | |
3212 | netdev, | |
3213 | &survey) < 0) | |
3214 | goto out; | |
3215 | survey_idx++; | |
3216 | } | |
3217 | ||
3218 | out: | |
3219 | cb->args[1] = survey_idx; | |
3220 | res = skb->len; | |
3221 | out_err: | |
67748893 | 3222 | nl80211_finish_netdev_dump(dev); |
61fa713c HS |
3223 | return res; |
3224 | } | |
3225 | ||
255e737e JM |
3226 | static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type) |
3227 | { | |
b23aa676 SO |
3228 | return auth_type <= NL80211_AUTHTYPE_MAX; |
3229 | } | |
3230 | ||
3231 | static bool nl80211_valid_wpa_versions(u32 wpa_versions) | |
3232 | { | |
3233 | return !(wpa_versions & ~(NL80211_WPA_VERSION_1 | | |
3234 | NL80211_WPA_VERSION_2)); | |
3235 | } | |
3236 | ||
3237 | static bool nl80211_valid_akm_suite(u32 akm) | |
3238 | { | |
3239 | return akm == WLAN_AKM_SUITE_8021X || | |
3240 | akm == WLAN_AKM_SUITE_PSK; | |
3241 | } | |
3242 | ||
3243 | static bool nl80211_valid_cipher_suite(u32 cipher) | |
3244 | { | |
3245 | return cipher == WLAN_CIPHER_SUITE_WEP40 || | |
3246 | cipher == WLAN_CIPHER_SUITE_WEP104 || | |
3247 | cipher == WLAN_CIPHER_SUITE_TKIP || | |
3248 | cipher == WLAN_CIPHER_SUITE_CCMP || | |
3249 | cipher == WLAN_CIPHER_SUITE_AES_CMAC; | |
255e737e JM |
3250 | } |
3251 | ||
b23aa676 | 3252 | |
636a5d36 JM |
3253 | static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) |
3254 | { | |
4c476991 JB |
3255 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3256 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 JB |
3257 | struct ieee80211_channel *chan; |
3258 | const u8 *bssid, *ssid, *ie = NULL; | |
3259 | int err, ssid_len, ie_len = 0; | |
3260 | enum nl80211_auth_type auth_type; | |
fffd0934 | 3261 | struct key_parse key; |
d5cdfacb | 3262 | bool local_state_change; |
636a5d36 | 3263 | |
f4a11bb0 JB |
3264 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3265 | return -EINVAL; | |
3266 | ||
3267 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3268 | return -EINVAL; | |
3269 | ||
1778092e JM |
3270 | if (!info->attrs[NL80211_ATTR_AUTH_TYPE]) |
3271 | return -EINVAL; | |
3272 | ||
19957bb3 JB |
3273 | if (!info->attrs[NL80211_ATTR_SSID]) |
3274 | return -EINVAL; | |
3275 | ||
3276 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
3277 | return -EINVAL; | |
3278 | ||
fffd0934 JB |
3279 | err = nl80211_parse_key(info, &key); |
3280 | if (err) | |
3281 | return err; | |
3282 | ||
3283 | if (key.idx >= 0) { | |
e31b8213 JB |
3284 | if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP) |
3285 | return -EINVAL; | |
fffd0934 JB |
3286 | if (!key.p.key || !key.p.key_len) |
3287 | return -EINVAL; | |
3288 | if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 || | |
3289 | key.p.key_len != WLAN_KEY_LEN_WEP40) && | |
3290 | (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 || | |
3291 | key.p.key_len != WLAN_KEY_LEN_WEP104)) | |
3292 | return -EINVAL; | |
3293 | if (key.idx > 4) | |
3294 | return -EINVAL; | |
3295 | } else { | |
3296 | key.p.key_len = 0; | |
3297 | key.p.key = NULL; | |
3298 | } | |
3299 | ||
afea0b7a JB |
3300 | if (key.idx >= 0) { |
3301 | int i; | |
3302 | bool ok = false; | |
3303 | for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) { | |
3304 | if (key.p.cipher == rdev->wiphy.cipher_suites[i]) { | |
3305 | ok = true; | |
3306 | break; | |
3307 | } | |
3308 | } | |
4c476991 JB |
3309 | if (!ok) |
3310 | return -EINVAL; | |
afea0b7a JB |
3311 | } |
3312 | ||
4c476991 JB |
3313 | if (!rdev->ops->auth) |
3314 | return -EOPNOTSUPP; | |
636a5d36 | 3315 | |
074ac8df | 3316 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3317 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3318 | return -EOPNOTSUPP; | |
eec60b03 | 3319 | |
19957bb3 | 3320 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
79c97e97 | 3321 | chan = ieee80211_get_channel(&rdev->wiphy, |
19957bb3 | 3322 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); |
4c476991 JB |
3323 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3324 | return -EINVAL; | |
636a5d36 | 3325 | |
19957bb3 JB |
3326 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3327 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3328 | |
3329 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3330 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3331 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3332 | } |
3333 | ||
19957bb3 | 3334 | auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); |
4c476991 JB |
3335 | if (!nl80211_valid_auth_type(auth_type)) |
3336 | return -EINVAL; | |
636a5d36 | 3337 | |
d5cdfacb JM |
3338 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3339 | ||
4c476991 JB |
3340 | return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid, |
3341 | ssid, ssid_len, ie, ie_len, | |
3342 | key.p.key, key.p.key_len, key.idx, | |
3343 | local_state_change); | |
636a5d36 JM |
3344 | } |
3345 | ||
c0692b8f JB |
3346 | static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, |
3347 | struct genl_info *info, | |
3dc27d25 JB |
3348 | struct cfg80211_crypto_settings *settings, |
3349 | int cipher_limit) | |
b23aa676 | 3350 | { |
c0b2bbd8 JB |
3351 | memset(settings, 0, sizeof(*settings)); |
3352 | ||
b23aa676 SO |
3353 | settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; |
3354 | ||
c0692b8f JB |
3355 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) { |
3356 | u16 proto; | |
3357 | proto = nla_get_u16( | |
3358 | info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]); | |
3359 | settings->control_port_ethertype = cpu_to_be16(proto); | |
3360 | if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && | |
3361 | proto != ETH_P_PAE) | |
3362 | return -EINVAL; | |
3363 | if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]) | |
3364 | settings->control_port_no_encrypt = true; | |
3365 | } else | |
3366 | settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE); | |
3367 | ||
b23aa676 SO |
3368 | if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) { |
3369 | void *data; | |
3370 | int len, i; | |
3371 | ||
3372 | data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3373 | len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]); | |
3374 | settings->n_ciphers_pairwise = len / sizeof(u32); | |
3375 | ||
3376 | if (len % sizeof(u32)) | |
3377 | return -EINVAL; | |
3378 | ||
3dc27d25 | 3379 | if (settings->n_ciphers_pairwise > cipher_limit) |
b23aa676 SO |
3380 | return -EINVAL; |
3381 | ||
3382 | memcpy(settings->ciphers_pairwise, data, len); | |
3383 | ||
3384 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3385 | if (!nl80211_valid_cipher_suite( | |
3386 | settings->ciphers_pairwise[i])) | |
3387 | return -EINVAL; | |
3388 | } | |
3389 | ||
3390 | if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) { | |
3391 | settings->cipher_group = | |
3392 | nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]); | |
3393 | if (!nl80211_valid_cipher_suite(settings->cipher_group)) | |
3394 | return -EINVAL; | |
3395 | } | |
3396 | ||
3397 | if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) { | |
3398 | settings->wpa_versions = | |
3399 | nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]); | |
3400 | if (!nl80211_valid_wpa_versions(settings->wpa_versions)) | |
3401 | return -EINVAL; | |
3402 | } | |
3403 | ||
3404 | if (info->attrs[NL80211_ATTR_AKM_SUITES]) { | |
3405 | void *data; | |
3406 | int len, i; | |
3407 | ||
3408 | data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3409 | len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]); | |
3410 | settings->n_akm_suites = len / sizeof(u32); | |
3411 | ||
3412 | if (len % sizeof(u32)) | |
3413 | return -EINVAL; | |
3414 | ||
3415 | memcpy(settings->akm_suites, data, len); | |
3416 | ||
3417 | for (i = 0; i < settings->n_ciphers_pairwise; i++) | |
3418 | if (!nl80211_valid_akm_suite(settings->akm_suites[i])) | |
3419 | return -EINVAL; | |
3420 | } | |
3421 | ||
3422 | return 0; | |
3423 | } | |
3424 | ||
636a5d36 JM |
3425 | static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) |
3426 | { | |
4c476991 JB |
3427 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3428 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3429 | struct cfg80211_crypto_settings crypto; |
f444de05 | 3430 | struct ieee80211_channel *chan; |
3e5d7649 | 3431 | const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL; |
19957bb3 JB |
3432 | int err, ssid_len, ie_len = 0; |
3433 | bool use_mfp = false; | |
636a5d36 | 3434 | |
f4a11bb0 JB |
3435 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3436 | return -EINVAL; | |
3437 | ||
3438 | if (!info->attrs[NL80211_ATTR_MAC] || | |
19957bb3 JB |
3439 | !info->attrs[NL80211_ATTR_SSID] || |
3440 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
f4a11bb0 JB |
3441 | return -EINVAL; |
3442 | ||
4c476991 JB |
3443 | if (!rdev->ops->assoc) |
3444 | return -EOPNOTSUPP; | |
636a5d36 | 3445 | |
074ac8df | 3446 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3447 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3448 | return -EOPNOTSUPP; | |
eec60b03 | 3449 | |
19957bb3 | 3450 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3451 | |
19957bb3 JB |
3452 | chan = ieee80211_get_channel(&rdev->wiphy, |
3453 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
4c476991 JB |
3454 | if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) |
3455 | return -EINVAL; | |
636a5d36 | 3456 | |
19957bb3 JB |
3457 | ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); |
3458 | ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
636a5d36 JM |
3459 | |
3460 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3461 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3462 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3463 | } |
3464 | ||
dc6382ce | 3465 | if (info->attrs[NL80211_ATTR_USE_MFP]) { |
4f5dadce | 3466 | enum nl80211_mfp mfp = |
dc6382ce | 3467 | nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); |
4f5dadce | 3468 | if (mfp == NL80211_MFP_REQUIRED) |
19957bb3 | 3469 | use_mfp = true; |
4c476991 JB |
3470 | else if (mfp != NL80211_MFP_NO) |
3471 | return -EINVAL; | |
dc6382ce JM |
3472 | } |
3473 | ||
3e5d7649 JB |
3474 | if (info->attrs[NL80211_ATTR_PREV_BSSID]) |
3475 | prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]); | |
3476 | ||
c0692b8f | 3477 | err = nl80211_crypto_settings(rdev, info, &crypto, 1); |
b23aa676 | 3478 | if (!err) |
3e5d7649 JB |
3479 | err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid, |
3480 | ssid, ssid_len, ie, ie_len, use_mfp, | |
19957bb3 | 3481 | &crypto); |
636a5d36 | 3482 | |
636a5d36 JM |
3483 | return err; |
3484 | } | |
3485 | ||
3486 | static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info) | |
3487 | { | |
4c476991 JB |
3488 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3489 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3490 | const u8 *ie = NULL, *bssid; |
4c476991 | 3491 | int ie_len = 0; |
19957bb3 | 3492 | u16 reason_code; |
d5cdfacb | 3493 | bool local_state_change; |
636a5d36 | 3494 | |
f4a11bb0 JB |
3495 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3496 | return -EINVAL; | |
3497 | ||
3498 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3499 | return -EINVAL; | |
3500 | ||
3501 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3502 | return -EINVAL; | |
3503 | ||
4c476991 JB |
3504 | if (!rdev->ops->deauth) |
3505 | return -EOPNOTSUPP; | |
636a5d36 | 3506 | |
074ac8df | 3507 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3508 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3509 | return -EOPNOTSUPP; | |
eec60b03 | 3510 | |
19957bb3 | 3511 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3512 | |
19957bb3 JB |
3513 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3514 | if (reason_code == 0) { | |
f4a11bb0 | 3515 | /* Reason Code 0 is reserved */ |
4c476991 | 3516 | return -EINVAL; |
255e737e | 3517 | } |
636a5d36 JM |
3518 | |
3519 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3520 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3521 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3522 | } |
3523 | ||
d5cdfacb JM |
3524 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3525 | ||
4c476991 JB |
3526 | return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code, |
3527 | local_state_change); | |
636a5d36 JM |
3528 | } |
3529 | ||
3530 | static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info) | |
3531 | { | |
4c476991 JB |
3532 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3533 | struct net_device *dev = info->user_ptr[1]; | |
19957bb3 | 3534 | const u8 *ie = NULL, *bssid; |
4c476991 | 3535 | int ie_len = 0; |
19957bb3 | 3536 | u16 reason_code; |
d5cdfacb | 3537 | bool local_state_change; |
636a5d36 | 3538 | |
f4a11bb0 JB |
3539 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3540 | return -EINVAL; | |
3541 | ||
3542 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3543 | return -EINVAL; | |
3544 | ||
3545 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3546 | return -EINVAL; | |
3547 | ||
4c476991 JB |
3548 | if (!rdev->ops->disassoc) |
3549 | return -EOPNOTSUPP; | |
636a5d36 | 3550 | |
074ac8df | 3551 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3552 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3553 | return -EOPNOTSUPP; | |
eec60b03 | 3554 | |
19957bb3 | 3555 | bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); |
636a5d36 | 3556 | |
19957bb3 JB |
3557 | reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); |
3558 | if (reason_code == 0) { | |
f4a11bb0 | 3559 | /* Reason Code 0 is reserved */ |
4c476991 | 3560 | return -EINVAL; |
255e737e | 3561 | } |
636a5d36 JM |
3562 | |
3563 | if (info->attrs[NL80211_ATTR_IE]) { | |
19957bb3 JB |
3564 | ie = nla_data(info->attrs[NL80211_ATTR_IE]); |
3565 | ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
636a5d36 JM |
3566 | } |
3567 | ||
d5cdfacb JM |
3568 | local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE]; |
3569 | ||
4c476991 JB |
3570 | return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code, |
3571 | local_state_change); | |
636a5d36 JM |
3572 | } |
3573 | ||
04a773ad JB |
3574 | static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) |
3575 | { | |
4c476991 JB |
3576 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3577 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad JB |
3578 | struct cfg80211_ibss_params ibss; |
3579 | struct wiphy *wiphy; | |
fffd0934 | 3580 | struct cfg80211_cached_keys *connkeys = NULL; |
04a773ad JB |
3581 | int err; |
3582 | ||
8e30bc55 JB |
3583 | memset(&ibss, 0, sizeof(ibss)); |
3584 | ||
04a773ad JB |
3585 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) |
3586 | return -EINVAL; | |
3587 | ||
3588 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3589 | !info->attrs[NL80211_ATTR_SSID] || | |
3590 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3591 | return -EINVAL; | |
3592 | ||
8e30bc55 JB |
3593 | ibss.beacon_interval = 100; |
3594 | ||
3595 | if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) { | |
3596 | ibss.beacon_interval = | |
3597 | nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]); | |
3598 | if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000) | |
3599 | return -EINVAL; | |
3600 | } | |
3601 | ||
4c476991 JB |
3602 | if (!rdev->ops->join_ibss) |
3603 | return -EOPNOTSUPP; | |
04a773ad | 3604 | |
4c476991 JB |
3605 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3606 | return -EOPNOTSUPP; | |
04a773ad | 3607 | |
79c97e97 | 3608 | wiphy = &rdev->wiphy; |
04a773ad JB |
3609 | |
3610 | if (info->attrs[NL80211_ATTR_MAC]) | |
3611 | ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3612 | ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3613 | ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3614 | ||
3615 | if (info->attrs[NL80211_ATTR_IE]) { | |
3616 | ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3617 | ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3618 | } | |
3619 | ||
3620 | ibss.channel = ieee80211_get_channel(wiphy, | |
3621 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3622 | if (!ibss.channel || | |
3623 | ibss.channel->flags & IEEE80211_CHAN_NO_IBSS || | |
4c476991 JB |
3624 | ibss.channel->flags & IEEE80211_CHAN_DISABLED) |
3625 | return -EINVAL; | |
04a773ad JB |
3626 | |
3627 | ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED]; | |
fffd0934 JB |
3628 | ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY]; |
3629 | ||
fbd2c8dc TP |
3630 | if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) { |
3631 | u8 *rates = | |
3632 | nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3633 | int n_rates = | |
3634 | nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]); | |
3635 | struct ieee80211_supported_band *sband = | |
3636 | wiphy->bands[ibss.channel->band]; | |
3637 | int i, j; | |
3638 | ||
4c476991 JB |
3639 | if (n_rates == 0) |
3640 | return -EINVAL; | |
fbd2c8dc TP |
3641 | |
3642 | for (i = 0; i < n_rates; i++) { | |
3643 | int rate = (rates[i] & 0x7f) * 5; | |
3644 | bool found = false; | |
3645 | ||
3646 | for (j = 0; j < sband->n_bitrates; j++) { | |
3647 | if (sband->bitrates[j].bitrate == rate) { | |
3648 | found = true; | |
3649 | ibss.basic_rates |= BIT(j); | |
3650 | break; | |
3651 | } | |
3652 | } | |
4c476991 JB |
3653 | if (!found) |
3654 | return -EINVAL; | |
fbd2c8dc | 3655 | } |
fbd2c8dc TP |
3656 | } |
3657 | ||
4c476991 JB |
3658 | if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3659 | connkeys = nl80211_parse_connkeys(rdev, | |
3660 | info->attrs[NL80211_ATTR_KEYS]); | |
3661 | if (IS_ERR(connkeys)) | |
3662 | return PTR_ERR(connkeys); | |
3663 | } | |
04a773ad | 3664 | |
4c476991 | 3665 | err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys); |
fffd0934 JB |
3666 | if (err) |
3667 | kfree(connkeys); | |
04a773ad JB |
3668 | return err; |
3669 | } | |
3670 | ||
3671 | static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info) | |
3672 | { | |
4c476991 JB |
3673 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3674 | struct net_device *dev = info->user_ptr[1]; | |
04a773ad | 3675 | |
4c476991 JB |
3676 | if (!rdev->ops->leave_ibss) |
3677 | return -EOPNOTSUPP; | |
04a773ad | 3678 | |
4c476991 JB |
3679 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC) |
3680 | return -EOPNOTSUPP; | |
04a773ad | 3681 | |
4c476991 | 3682 | return cfg80211_leave_ibss(rdev, dev, false); |
04a773ad JB |
3683 | } |
3684 | ||
aff89a9b JB |
3685 | #ifdef CONFIG_NL80211_TESTMODE |
3686 | static struct genl_multicast_group nl80211_testmode_mcgrp = { | |
3687 | .name = "testmode", | |
3688 | }; | |
3689 | ||
3690 | static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info) | |
3691 | { | |
4c476991 | 3692 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
aff89a9b JB |
3693 | int err; |
3694 | ||
3695 | if (!info->attrs[NL80211_ATTR_TESTDATA]) | |
3696 | return -EINVAL; | |
3697 | ||
aff89a9b JB |
3698 | err = -EOPNOTSUPP; |
3699 | if (rdev->ops->testmode_cmd) { | |
3700 | rdev->testmode_info = info; | |
3701 | err = rdev->ops->testmode_cmd(&rdev->wiphy, | |
3702 | nla_data(info->attrs[NL80211_ATTR_TESTDATA]), | |
3703 | nla_len(info->attrs[NL80211_ATTR_TESTDATA])); | |
3704 | rdev->testmode_info = NULL; | |
3705 | } | |
3706 | ||
aff89a9b JB |
3707 | return err; |
3708 | } | |
3709 | ||
3710 | static struct sk_buff * | |
3711 | __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev, | |
3712 | int approxlen, u32 pid, u32 seq, gfp_t gfp) | |
3713 | { | |
3714 | struct sk_buff *skb; | |
3715 | void *hdr; | |
3716 | struct nlattr *data; | |
3717 | ||
3718 | skb = nlmsg_new(approxlen + 100, gfp); | |
3719 | if (!skb) | |
3720 | return NULL; | |
3721 | ||
3722 | hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE); | |
3723 | if (!hdr) { | |
3724 | kfree_skb(skb); | |
3725 | return NULL; | |
3726 | } | |
3727 | ||
3728 | NLA_PUT_U32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
3729 | data = nla_nest_start(skb, NL80211_ATTR_TESTDATA); | |
3730 | ||
3731 | ((void **)skb->cb)[0] = rdev; | |
3732 | ((void **)skb->cb)[1] = hdr; | |
3733 | ((void **)skb->cb)[2] = data; | |
3734 | ||
3735 | return skb; | |
3736 | ||
3737 | nla_put_failure: | |
3738 | kfree_skb(skb); | |
3739 | return NULL; | |
3740 | } | |
3741 | ||
3742 | struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy, | |
3743 | int approxlen) | |
3744 | { | |
3745 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3746 | ||
3747 | if (WARN_ON(!rdev->testmode_info)) | |
3748 | return NULL; | |
3749 | ||
3750 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, | |
3751 | rdev->testmode_info->snd_pid, | |
3752 | rdev->testmode_info->snd_seq, | |
3753 | GFP_KERNEL); | |
3754 | } | |
3755 | EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb); | |
3756 | ||
3757 | int cfg80211_testmode_reply(struct sk_buff *skb) | |
3758 | { | |
3759 | struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0]; | |
3760 | void *hdr = ((void **)skb->cb)[1]; | |
3761 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3762 | ||
3763 | if (WARN_ON(!rdev->testmode_info)) { | |
3764 | kfree_skb(skb); | |
3765 | return -EINVAL; | |
3766 | } | |
3767 | ||
3768 | nla_nest_end(skb, data); | |
3769 | genlmsg_end(skb, hdr); | |
3770 | return genlmsg_reply(skb, rdev->testmode_info); | |
3771 | } | |
3772 | EXPORT_SYMBOL(cfg80211_testmode_reply); | |
3773 | ||
3774 | struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy, | |
3775 | int approxlen, gfp_t gfp) | |
3776 | { | |
3777 | struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); | |
3778 | ||
3779 | return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp); | |
3780 | } | |
3781 | EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb); | |
3782 | ||
3783 | void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp) | |
3784 | { | |
3785 | void *hdr = ((void **)skb->cb)[1]; | |
3786 | struct nlattr *data = ((void **)skb->cb)[2]; | |
3787 | ||
3788 | nla_nest_end(skb, data); | |
3789 | genlmsg_end(skb, hdr); | |
3790 | genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp); | |
3791 | } | |
3792 | EXPORT_SYMBOL(cfg80211_testmode_event); | |
3793 | #endif | |
3794 | ||
b23aa676 SO |
3795 | static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) |
3796 | { | |
4c476991 JB |
3797 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3798 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3799 | struct cfg80211_connect_params connect; |
3800 | struct wiphy *wiphy; | |
fffd0934 | 3801 | struct cfg80211_cached_keys *connkeys = NULL; |
b23aa676 SO |
3802 | int err; |
3803 | ||
3804 | memset(&connect, 0, sizeof(connect)); | |
3805 | ||
3806 | if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) | |
3807 | return -EINVAL; | |
3808 | ||
3809 | if (!info->attrs[NL80211_ATTR_SSID] || | |
3810 | !nla_len(info->attrs[NL80211_ATTR_SSID])) | |
3811 | return -EINVAL; | |
3812 | ||
3813 | if (info->attrs[NL80211_ATTR_AUTH_TYPE]) { | |
3814 | connect.auth_type = | |
3815 | nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]); | |
3816 | if (!nl80211_valid_auth_type(connect.auth_type)) | |
3817 | return -EINVAL; | |
3818 | } else | |
3819 | connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC; | |
3820 | ||
3821 | connect.privacy = info->attrs[NL80211_ATTR_PRIVACY]; | |
3822 | ||
c0692b8f | 3823 | err = nl80211_crypto_settings(rdev, info, &connect.crypto, |
3dc27d25 | 3824 | NL80211_MAX_NR_CIPHER_SUITES); |
b23aa676 SO |
3825 | if (err) |
3826 | return err; | |
b23aa676 | 3827 | |
074ac8df | 3828 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3829 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3830 | return -EOPNOTSUPP; | |
b23aa676 | 3831 | |
79c97e97 | 3832 | wiphy = &rdev->wiphy; |
b23aa676 | 3833 | |
b23aa676 SO |
3834 | if (info->attrs[NL80211_ATTR_MAC]) |
3835 | connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3836 | connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); | |
3837 | connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); | |
3838 | ||
3839 | if (info->attrs[NL80211_ATTR_IE]) { | |
3840 | connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]); | |
3841 | connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); | |
3842 | } | |
3843 | ||
3844 | if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { | |
3845 | connect.channel = | |
3846 | ieee80211_get_channel(wiphy, | |
3847 | nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); | |
3848 | if (!connect.channel || | |
4c476991 JB |
3849 | connect.channel->flags & IEEE80211_CHAN_DISABLED) |
3850 | return -EINVAL; | |
b23aa676 SO |
3851 | } |
3852 | ||
fffd0934 JB |
3853 | if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) { |
3854 | connkeys = nl80211_parse_connkeys(rdev, | |
3855 | info->attrs[NL80211_ATTR_KEYS]); | |
4c476991 JB |
3856 | if (IS_ERR(connkeys)) |
3857 | return PTR_ERR(connkeys); | |
fffd0934 JB |
3858 | } |
3859 | ||
3860 | err = cfg80211_connect(rdev, dev, &connect, connkeys); | |
fffd0934 JB |
3861 | if (err) |
3862 | kfree(connkeys); | |
b23aa676 SO |
3863 | return err; |
3864 | } | |
3865 | ||
3866 | static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info) | |
3867 | { | |
4c476991 JB |
3868 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3869 | struct net_device *dev = info->user_ptr[1]; | |
b23aa676 SO |
3870 | u16 reason; |
3871 | ||
3872 | if (!info->attrs[NL80211_ATTR_REASON_CODE]) | |
3873 | reason = WLAN_REASON_DEAUTH_LEAVING; | |
3874 | else | |
3875 | reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); | |
3876 | ||
3877 | if (reason == 0) | |
3878 | return -EINVAL; | |
3879 | ||
074ac8df | 3880 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3881 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3882 | return -EOPNOTSUPP; | |
b23aa676 | 3883 | |
4c476991 | 3884 | return cfg80211_disconnect(rdev, dev, reason, true); |
b23aa676 SO |
3885 | } |
3886 | ||
463d0183 JB |
3887 | static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info) |
3888 | { | |
4c476991 | 3889 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
463d0183 JB |
3890 | struct net *net; |
3891 | int err; | |
3892 | u32 pid; | |
3893 | ||
3894 | if (!info->attrs[NL80211_ATTR_PID]) | |
3895 | return -EINVAL; | |
3896 | ||
3897 | pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]); | |
3898 | ||
463d0183 | 3899 | net = get_net_ns_by_pid(pid); |
4c476991 JB |
3900 | if (IS_ERR(net)) |
3901 | return PTR_ERR(net); | |
463d0183 JB |
3902 | |
3903 | err = 0; | |
3904 | ||
3905 | /* check if anything to do */ | |
4c476991 JB |
3906 | if (!net_eq(wiphy_net(&rdev->wiphy), net)) |
3907 | err = cfg80211_switch_netns(rdev, net); | |
463d0183 | 3908 | |
463d0183 | 3909 | put_net(net); |
463d0183 JB |
3910 | return err; |
3911 | } | |
3912 | ||
67fbb16b SO |
3913 | static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info) |
3914 | { | |
4c476991 | 3915 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
67fbb16b SO |
3916 | int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev, |
3917 | struct cfg80211_pmksa *pmksa) = NULL; | |
4c476991 | 3918 | struct net_device *dev = info->user_ptr[1]; |
67fbb16b SO |
3919 | struct cfg80211_pmksa pmksa; |
3920 | ||
3921 | memset(&pmksa, 0, sizeof(struct cfg80211_pmksa)); | |
3922 | ||
3923 | if (!info->attrs[NL80211_ATTR_MAC]) | |
3924 | return -EINVAL; | |
3925 | ||
3926 | if (!info->attrs[NL80211_ATTR_PMKID]) | |
3927 | return -EINVAL; | |
3928 | ||
67fbb16b SO |
3929 | pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]); |
3930 | pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); | |
3931 | ||
074ac8df | 3932 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3933 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3934 | return -EOPNOTSUPP; | |
67fbb16b SO |
3935 | |
3936 | switch (info->genlhdr->cmd) { | |
3937 | case NL80211_CMD_SET_PMKSA: | |
3938 | rdev_ops = rdev->ops->set_pmksa; | |
3939 | break; | |
3940 | case NL80211_CMD_DEL_PMKSA: | |
3941 | rdev_ops = rdev->ops->del_pmksa; | |
3942 | break; | |
3943 | default: | |
3944 | WARN_ON(1); | |
3945 | break; | |
3946 | } | |
3947 | ||
4c476991 JB |
3948 | if (!rdev_ops) |
3949 | return -EOPNOTSUPP; | |
67fbb16b | 3950 | |
4c476991 | 3951 | return rdev_ops(&rdev->wiphy, dev, &pmksa); |
67fbb16b SO |
3952 | } |
3953 | ||
3954 | static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) | |
3955 | { | |
4c476991 JB |
3956 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3957 | struct net_device *dev = info->user_ptr[1]; | |
67fbb16b | 3958 | |
074ac8df | 3959 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
3960 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT) |
3961 | return -EOPNOTSUPP; | |
67fbb16b | 3962 | |
4c476991 JB |
3963 | if (!rdev->ops->flush_pmksa) |
3964 | return -EOPNOTSUPP; | |
67fbb16b | 3965 | |
4c476991 | 3966 | return rdev->ops->flush_pmksa(&rdev->wiphy, dev); |
67fbb16b SO |
3967 | } |
3968 | ||
9588bbd5 JM |
3969 | static int nl80211_remain_on_channel(struct sk_buff *skb, |
3970 | struct genl_info *info) | |
3971 | { | |
4c476991 JB |
3972 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
3973 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 JM |
3974 | struct ieee80211_channel *chan; |
3975 | struct sk_buff *msg; | |
3976 | void *hdr; | |
3977 | u64 cookie; | |
3978 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
3979 | u32 freq, duration; | |
3980 | int err; | |
3981 | ||
3982 | if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] || | |
3983 | !info->attrs[NL80211_ATTR_DURATION]) | |
3984 | return -EINVAL; | |
3985 | ||
3986 | duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); | |
3987 | ||
3988 | /* | |
3989 | * We should be on that channel for at least one jiffie, | |
3990 | * and more than 5 seconds seems excessive. | |
3991 | */ | |
3992 | if (!duration || !msecs_to_jiffies(duration) || duration > 5000) | |
3993 | return -EINVAL; | |
3994 | ||
4c476991 JB |
3995 | if (!rdev->ops->remain_on_channel) |
3996 | return -EOPNOTSUPP; | |
9588bbd5 | 3997 | |
9588bbd5 JM |
3998 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
3999 | channel_type = nla_get_u32( | |
4000 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4001 | if (channel_type != NL80211_CHAN_NO_HT && | |
4002 | channel_type != NL80211_CHAN_HT20 && | |
4003 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4004 | channel_type != NL80211_CHAN_HT40MINUS) |
4005 | return -EINVAL; | |
9588bbd5 JM |
4006 | } |
4007 | ||
4008 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4009 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4010 | if (chan == NULL) |
4011 | return -EINVAL; | |
9588bbd5 JM |
4012 | |
4013 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4014 | if (!msg) |
4015 | return -ENOMEM; | |
9588bbd5 JM |
4016 | |
4017 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4018 | NL80211_CMD_REMAIN_ON_CHANNEL); | |
4019 | ||
4020 | if (IS_ERR(hdr)) { | |
4021 | err = PTR_ERR(hdr); | |
4022 | goto free_msg; | |
4023 | } | |
4024 | ||
4025 | err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan, | |
4026 | channel_type, duration, &cookie); | |
4027 | ||
4028 | if (err) | |
4029 | goto free_msg; | |
4030 | ||
4031 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4032 | ||
4033 | genlmsg_end(msg, hdr); | |
4c476991 JB |
4034 | |
4035 | return genlmsg_reply(msg, info); | |
9588bbd5 JM |
4036 | |
4037 | nla_put_failure: | |
4038 | err = -ENOBUFS; | |
4039 | free_msg: | |
4040 | nlmsg_free(msg); | |
9588bbd5 JM |
4041 | return err; |
4042 | } | |
4043 | ||
4044 | static int nl80211_cancel_remain_on_channel(struct sk_buff *skb, | |
4045 | struct genl_info *info) | |
4046 | { | |
4c476991 JB |
4047 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4048 | struct net_device *dev = info->user_ptr[1]; | |
9588bbd5 | 4049 | u64 cookie; |
9588bbd5 JM |
4050 | |
4051 | if (!info->attrs[NL80211_ATTR_COOKIE]) | |
4052 | return -EINVAL; | |
4053 | ||
4c476991 JB |
4054 | if (!rdev->ops->cancel_remain_on_channel) |
4055 | return -EOPNOTSUPP; | |
9588bbd5 | 4056 | |
9588bbd5 JM |
4057 | cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]); |
4058 | ||
4c476991 | 4059 | return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie); |
9588bbd5 JM |
4060 | } |
4061 | ||
13ae75b1 JM |
4062 | static u32 rateset_to_mask(struct ieee80211_supported_band *sband, |
4063 | u8 *rates, u8 rates_len) | |
4064 | { | |
4065 | u8 i; | |
4066 | u32 mask = 0; | |
4067 | ||
4068 | for (i = 0; i < rates_len; i++) { | |
4069 | int rate = (rates[i] & 0x7f) * 5; | |
4070 | int ridx; | |
4071 | for (ridx = 0; ridx < sband->n_bitrates; ridx++) { | |
4072 | struct ieee80211_rate *srate = | |
4073 | &sband->bitrates[ridx]; | |
4074 | if (rate == srate->bitrate) { | |
4075 | mask |= 1 << ridx; | |
4076 | break; | |
4077 | } | |
4078 | } | |
4079 | if (ridx == sband->n_bitrates) | |
4080 | return 0; /* rate not found */ | |
4081 | } | |
4082 | ||
4083 | return mask; | |
4084 | } | |
4085 | ||
b54452b0 | 4086 | static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { |
13ae75b1 JM |
4087 | [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY, |
4088 | .len = NL80211_MAX_SUPP_RATES }, | |
4089 | }; | |
4090 | ||
4091 | static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, | |
4092 | struct genl_info *info) | |
4093 | { | |
4094 | struct nlattr *tb[NL80211_TXRATE_MAX + 1]; | |
4c476991 | 4095 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
13ae75b1 | 4096 | struct cfg80211_bitrate_mask mask; |
4c476991 JB |
4097 | int rem, i; |
4098 | struct net_device *dev = info->user_ptr[1]; | |
13ae75b1 JM |
4099 | struct nlattr *tx_rates; |
4100 | struct ieee80211_supported_band *sband; | |
4101 | ||
4102 | if (info->attrs[NL80211_ATTR_TX_RATES] == NULL) | |
4103 | return -EINVAL; | |
4104 | ||
4c476991 JB |
4105 | if (!rdev->ops->set_bitrate_mask) |
4106 | return -EOPNOTSUPP; | |
13ae75b1 JM |
4107 | |
4108 | memset(&mask, 0, sizeof(mask)); | |
4109 | /* Default to all rates enabled */ | |
4110 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { | |
4111 | sband = rdev->wiphy.bands[i]; | |
4112 | mask.control[i].legacy = | |
4113 | sband ? (1 << sband->n_bitrates) - 1 : 0; | |
4114 | } | |
4115 | ||
4116 | /* | |
4117 | * The nested attribute uses enum nl80211_band as the index. This maps | |
4118 | * directly to the enum ieee80211_band values used in cfg80211. | |
4119 | */ | |
4120 | nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) | |
4121 | { | |
4122 | enum ieee80211_band band = nla_type(tx_rates); | |
4c476991 JB |
4123 | if (band < 0 || band >= IEEE80211_NUM_BANDS) |
4124 | return -EINVAL; | |
13ae75b1 | 4125 | sband = rdev->wiphy.bands[band]; |
4c476991 JB |
4126 | if (sband == NULL) |
4127 | return -EINVAL; | |
13ae75b1 JM |
4128 | nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), |
4129 | nla_len(tx_rates), nl80211_txattr_policy); | |
4130 | if (tb[NL80211_TXRATE_LEGACY]) { | |
4131 | mask.control[band].legacy = rateset_to_mask( | |
4132 | sband, | |
4133 | nla_data(tb[NL80211_TXRATE_LEGACY]), | |
4134 | nla_len(tb[NL80211_TXRATE_LEGACY])); | |
4c476991 JB |
4135 | if (mask.control[band].legacy == 0) |
4136 | return -EINVAL; | |
13ae75b1 JM |
4137 | } |
4138 | } | |
4139 | ||
4c476991 | 4140 | return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask); |
13ae75b1 JM |
4141 | } |
4142 | ||
2e161f78 | 4143 | static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4144 | { |
4c476991 JB |
4145 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4146 | struct net_device *dev = info->user_ptr[1]; | |
2e161f78 | 4147 | u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION; |
026331c4 JM |
4148 | |
4149 | if (!info->attrs[NL80211_ATTR_FRAME_MATCH]) | |
4150 | return -EINVAL; | |
4151 | ||
2e161f78 JB |
4152 | if (info->attrs[NL80211_ATTR_FRAME_TYPE]) |
4153 | frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]); | |
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 JM |
4162 | |
4163 | /* not much point in registering if we can't reply */ | |
4c476991 JB |
4164 | if (!rdev->ops->mgmt_tx) |
4165 | return -EOPNOTSUPP; | |
026331c4 | 4166 | |
4c476991 | 4167 | return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid, |
2e161f78 | 4168 | frame_type, |
026331c4 JM |
4169 | nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]), |
4170 | nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH])); | |
026331c4 JM |
4171 | } |
4172 | ||
2e161f78 | 4173 | static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) |
026331c4 | 4174 | { |
4c476991 JB |
4175 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
4176 | struct net_device *dev = info->user_ptr[1]; | |
026331c4 JM |
4177 | struct ieee80211_channel *chan; |
4178 | enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; | |
252aa631 | 4179 | bool channel_type_valid = false; |
026331c4 JM |
4180 | u32 freq; |
4181 | int err; | |
4182 | void *hdr; | |
4183 | u64 cookie; | |
4184 | struct sk_buff *msg; | |
4185 | ||
4186 | if (!info->attrs[NL80211_ATTR_FRAME] || | |
4187 | !info->attrs[NL80211_ATTR_WIPHY_FREQ]) | |
4188 | return -EINVAL; | |
4189 | ||
4c476991 JB |
4190 | if (!rdev->ops->mgmt_tx) |
4191 | return -EOPNOTSUPP; | |
026331c4 | 4192 | |
9d38d85d | 4193 | if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION && |
074ac8df | 4194 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC && |
663fcafd JB |
4195 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT && |
4196 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && | |
4197 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && | |
4c476991 JB |
4198 | dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) |
4199 | return -EOPNOTSUPP; | |
026331c4 | 4200 | |
026331c4 JM |
4201 | if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { |
4202 | channel_type = nla_get_u32( | |
4203 | info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]); | |
4204 | if (channel_type != NL80211_CHAN_NO_HT && | |
4205 | channel_type != NL80211_CHAN_HT20 && | |
4206 | channel_type != NL80211_CHAN_HT40PLUS && | |
4c476991 JB |
4207 | channel_type != NL80211_CHAN_HT40MINUS) |
4208 | return -EINVAL; | |
252aa631 | 4209 | channel_type_valid = true; |
026331c4 JM |
4210 | } |
4211 | ||
4212 | freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); | |
4213 | chan = rdev_freq_to_chan(rdev, freq, channel_type); | |
4c476991 JB |
4214 | if (chan == NULL) |
4215 | return -EINVAL; | |
026331c4 JM |
4216 | |
4217 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4218 | if (!msg) |
4219 | return -ENOMEM; | |
026331c4 JM |
4220 | |
4221 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
2e161f78 | 4222 | NL80211_CMD_FRAME); |
026331c4 JM |
4223 | |
4224 | if (IS_ERR(hdr)) { | |
4225 | err = PTR_ERR(hdr); | |
4226 | goto free_msg; | |
4227 | } | |
2e161f78 JB |
4228 | err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, channel_type, |
4229 | channel_type_valid, | |
4230 | nla_data(info->attrs[NL80211_ATTR_FRAME]), | |
4231 | nla_len(info->attrs[NL80211_ATTR_FRAME]), | |
4232 | &cookie); | |
026331c4 JM |
4233 | if (err) |
4234 | goto free_msg; | |
4235 | ||
4236 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
4237 | ||
4238 | genlmsg_end(msg, hdr); | |
4c476991 | 4239 | return genlmsg_reply(msg, info); |
026331c4 JM |
4240 | |
4241 | nla_put_failure: | |
4242 | err = -ENOBUFS; | |
4243 | free_msg: | |
4244 | nlmsg_free(msg); | |
026331c4 JM |
4245 | return err; |
4246 | } | |
4247 | ||
ffb9eb3d KV |
4248 | static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info) |
4249 | { | |
4c476991 | 4250 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d | 4251 | struct wireless_dev *wdev; |
4c476991 | 4252 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4253 | u8 ps_state; |
4254 | bool state; | |
4255 | int err; | |
4256 | ||
4c476991 JB |
4257 | if (!info->attrs[NL80211_ATTR_PS_STATE]) |
4258 | return -EINVAL; | |
ffb9eb3d KV |
4259 | |
4260 | ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]); | |
4261 | ||
4c476991 JB |
4262 | if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) |
4263 | return -EINVAL; | |
ffb9eb3d KV |
4264 | |
4265 | wdev = dev->ieee80211_ptr; | |
4266 | ||
4c476991 JB |
4267 | if (!rdev->ops->set_power_mgmt) |
4268 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4269 | |
4270 | state = (ps_state == NL80211_PS_ENABLED) ? true : false; | |
4271 | ||
4272 | if (state == wdev->ps) | |
4c476991 | 4273 | return 0; |
ffb9eb3d | 4274 | |
4c476991 JB |
4275 | err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state, |
4276 | wdev->ps_timeout); | |
4277 | if (!err) | |
4278 | wdev->ps = state; | |
ffb9eb3d KV |
4279 | return err; |
4280 | } | |
4281 | ||
4282 | static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) | |
4283 | { | |
4c476991 | 4284 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
ffb9eb3d KV |
4285 | enum nl80211_ps_state ps_state; |
4286 | struct wireless_dev *wdev; | |
4c476991 | 4287 | struct net_device *dev = info->user_ptr[1]; |
ffb9eb3d KV |
4288 | struct sk_buff *msg; |
4289 | void *hdr; | |
4290 | int err; | |
4291 | ||
ffb9eb3d KV |
4292 | wdev = dev->ieee80211_ptr; |
4293 | ||
4c476991 JB |
4294 | if (!rdev->ops->set_power_mgmt) |
4295 | return -EOPNOTSUPP; | |
ffb9eb3d KV |
4296 | |
4297 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); | |
4c476991 JB |
4298 | if (!msg) |
4299 | return -ENOMEM; | |
ffb9eb3d KV |
4300 | |
4301 | hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0, | |
4302 | NL80211_CMD_GET_POWER_SAVE); | |
4303 | if (!hdr) { | |
4c476991 | 4304 | err = -ENOBUFS; |
ffb9eb3d KV |
4305 | goto free_msg; |
4306 | } | |
4307 | ||
4308 | if (wdev->ps) | |
4309 | ps_state = NL80211_PS_ENABLED; | |
4310 | else | |
4311 | ps_state = NL80211_PS_DISABLED; | |
4312 | ||
4313 | NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state); | |
4314 | ||
4315 | genlmsg_end(msg, hdr); | |
4c476991 | 4316 | return genlmsg_reply(msg, info); |
ffb9eb3d | 4317 | |
4c476991 | 4318 | nla_put_failure: |
ffb9eb3d | 4319 | err = -ENOBUFS; |
4c476991 | 4320 | free_msg: |
ffb9eb3d | 4321 | nlmsg_free(msg); |
ffb9eb3d KV |
4322 | return err; |
4323 | } | |
4324 | ||
d6dc1a38 JO |
4325 | static struct nla_policy |
4326 | nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { | |
4327 | [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, | |
4328 | [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, | |
4329 | [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, | |
4330 | }; | |
4331 | ||
4332 | static int nl80211_set_cqm_rssi(struct genl_info *info, | |
4333 | s32 threshold, u32 hysteresis) | |
4334 | { | |
4c476991 | 4335 | struct cfg80211_registered_device *rdev = info->user_ptr[0]; |
d6dc1a38 | 4336 | struct wireless_dev *wdev; |
4c476991 | 4337 | struct net_device *dev = info->user_ptr[1]; |
d6dc1a38 JO |
4338 | |
4339 | if (threshold > 0) | |
4340 | return -EINVAL; | |
4341 | ||
d6dc1a38 JO |
4342 | wdev = dev->ieee80211_ptr; |
4343 | ||
4c476991 JB |
4344 | if (!rdev->ops->set_cqm_rssi_config) |
4345 | return -EOPNOTSUPP; | |
d6dc1a38 | 4346 | |
074ac8df | 4347 | if (wdev->iftype != NL80211_IFTYPE_STATION && |
4c476991 JB |
4348 | wdev->iftype != NL80211_IFTYPE_P2P_CLIENT) |
4349 | return -EOPNOTSUPP; | |
d6dc1a38 | 4350 | |
4c476991 JB |
4351 | return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev, |
4352 | threshold, hysteresis); | |
d6dc1a38 JO |
4353 | } |
4354 | ||
4355 | static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) | |
4356 | { | |
4357 | struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1]; | |
4358 | struct nlattr *cqm; | |
4359 | int err; | |
4360 | ||
4361 | cqm = info->attrs[NL80211_ATTR_CQM]; | |
4362 | if (!cqm) { | |
4363 | err = -EINVAL; | |
4364 | goto out; | |
4365 | } | |
4366 | ||
4367 | err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm, | |
4368 | nl80211_attr_cqm_policy); | |
4369 | if (err) | |
4370 | goto out; | |
4371 | ||
4372 | if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] && | |
4373 | attrs[NL80211_ATTR_CQM_RSSI_HYST]) { | |
4374 | s32 threshold; | |
4375 | u32 hysteresis; | |
4376 | threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]); | |
4377 | hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]); | |
4378 | err = nl80211_set_cqm_rssi(info, threshold, hysteresis); | |
4379 | } else | |
4380 | err = -EINVAL; | |
4381 | ||
4382 | out: | |
4383 | return err; | |
4384 | } | |
4385 | ||
4c476991 JB |
4386 | #define NL80211_FLAG_NEED_WIPHY 0x01 |
4387 | #define NL80211_FLAG_NEED_NETDEV 0x02 | |
4388 | #define NL80211_FLAG_NEED_RTNL 0x04 | |
41265714 JB |
4389 | #define NL80211_FLAG_CHECK_NETDEV_UP 0x08 |
4390 | #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\ | |
4391 | NL80211_FLAG_CHECK_NETDEV_UP) | |
4c476991 JB |
4392 | |
4393 | static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4394 | struct genl_info *info) | |
4395 | { | |
4396 | struct cfg80211_registered_device *rdev; | |
4397 | struct net_device *dev; | |
4398 | int err; | |
4399 | bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL; | |
4400 | ||
4401 | if (rtnl) | |
4402 | rtnl_lock(); | |
4403 | ||
4404 | if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) { | |
4405 | rdev = cfg80211_get_dev_from_info(info); | |
4406 | if (IS_ERR(rdev)) { | |
4407 | if (rtnl) | |
4408 | rtnl_unlock(); | |
4409 | return PTR_ERR(rdev); | |
4410 | } | |
4411 | info->user_ptr[0] = rdev; | |
4412 | } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { | |
4413 | err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev); | |
4414 | if (err) { | |
4415 | if (rtnl) | |
4416 | rtnl_unlock(); | |
4417 | return err; | |
4418 | } | |
41265714 JB |
4419 | if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP && |
4420 | !netif_running(dev)) { | |
4421 | if (rtnl) | |
4422 | rtnl_unlock(); | |
4423 | return -ENETDOWN; | |
4424 | } | |
4c476991 JB |
4425 | info->user_ptr[0] = rdev; |
4426 | info->user_ptr[1] = dev; | |
4427 | } | |
4428 | ||
4429 | return 0; | |
4430 | } | |
4431 | ||
4432 | static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb, | |
4433 | struct genl_info *info) | |
4434 | { | |
4435 | if (info->user_ptr[0]) | |
4436 | cfg80211_unlock_rdev(info->user_ptr[0]); | |
4437 | if (info->user_ptr[1]) | |
4438 | dev_put(info->user_ptr[1]); | |
4439 | if (ops->internal_flags & NL80211_FLAG_NEED_RTNL) | |
4440 | rtnl_unlock(); | |
4441 | } | |
4442 | ||
55682965 JB |
4443 | static struct genl_ops nl80211_ops[] = { |
4444 | { | |
4445 | .cmd = NL80211_CMD_GET_WIPHY, | |
4446 | .doit = nl80211_get_wiphy, | |
4447 | .dumpit = nl80211_dump_wiphy, | |
4448 | .policy = nl80211_policy, | |
4449 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4450 | .internal_flags = NL80211_FLAG_NEED_WIPHY, |
55682965 JB |
4451 | }, |
4452 | { | |
4453 | .cmd = NL80211_CMD_SET_WIPHY, | |
4454 | .doit = nl80211_set_wiphy, | |
4455 | .policy = nl80211_policy, | |
4456 | .flags = GENL_ADMIN_PERM, | |
4c476991 | 4457 | .internal_flags = NL80211_FLAG_NEED_RTNL, |
55682965 JB |
4458 | }, |
4459 | { | |
4460 | .cmd = NL80211_CMD_GET_INTERFACE, | |
4461 | .doit = nl80211_get_interface, | |
4462 | .dumpit = nl80211_dump_interface, | |
4463 | .policy = nl80211_policy, | |
4464 | /* can be retrieved by unprivileged users */ | |
4c476991 | 4465 | .internal_flags = NL80211_FLAG_NEED_NETDEV, |
55682965 JB |
4466 | }, |
4467 | { | |
4468 | .cmd = NL80211_CMD_SET_INTERFACE, | |
4469 | .doit = nl80211_set_interface, | |
4470 | .policy = nl80211_policy, | |
4471 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4472 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4473 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4474 | }, |
4475 | { | |
4476 | .cmd = NL80211_CMD_NEW_INTERFACE, | |
4477 | .doit = nl80211_new_interface, | |
4478 | .policy = nl80211_policy, | |
4479 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4480 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4481 | NL80211_FLAG_NEED_RTNL, | |
55682965 JB |
4482 | }, |
4483 | { | |
4484 | .cmd = NL80211_CMD_DEL_INTERFACE, | |
4485 | .doit = nl80211_del_interface, | |
4486 | .policy = nl80211_policy, | |
41ade00f | 4487 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4488 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4489 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4490 | }, |
4491 | { | |
4492 | .cmd = NL80211_CMD_GET_KEY, | |
4493 | .doit = nl80211_get_key, | |
4494 | .policy = nl80211_policy, | |
4495 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4496 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4497 | NL80211_FLAG_NEED_RTNL, | |
41ade00f JB |
4498 | }, |
4499 | { | |
4500 | .cmd = NL80211_CMD_SET_KEY, | |
4501 | .doit = nl80211_set_key, | |
4502 | .policy = nl80211_policy, | |
4503 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4504 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4505 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4506 | }, |
4507 | { | |
4508 | .cmd = NL80211_CMD_NEW_KEY, | |
4509 | .doit = nl80211_new_key, | |
4510 | .policy = nl80211_policy, | |
4511 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4512 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4513 | NL80211_FLAG_NEED_RTNL, |
41ade00f JB |
4514 | }, |
4515 | { | |
4516 | .cmd = NL80211_CMD_DEL_KEY, | |
4517 | .doit = nl80211_del_key, | |
4518 | .policy = nl80211_policy, | |
55682965 | 4519 | .flags = GENL_ADMIN_PERM, |
41265714 | 4520 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4521 | NL80211_FLAG_NEED_RTNL, |
55682965 | 4522 | }, |
ed1b6cc7 JB |
4523 | { |
4524 | .cmd = NL80211_CMD_SET_BEACON, | |
4525 | .policy = nl80211_policy, | |
4526 | .flags = GENL_ADMIN_PERM, | |
4527 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4528 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4529 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4530 | }, |
4531 | { | |
4532 | .cmd = NL80211_CMD_NEW_BEACON, | |
4533 | .policy = nl80211_policy, | |
4534 | .flags = GENL_ADMIN_PERM, | |
4535 | .doit = nl80211_addset_beacon, | |
4c476991 JB |
4536 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4537 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 JB |
4538 | }, |
4539 | { | |
4540 | .cmd = NL80211_CMD_DEL_BEACON, | |
4541 | .policy = nl80211_policy, | |
4542 | .flags = GENL_ADMIN_PERM, | |
4543 | .doit = nl80211_del_beacon, | |
4c476991 JB |
4544 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4545 | NL80211_FLAG_NEED_RTNL, | |
ed1b6cc7 | 4546 | }, |
5727ef1b JB |
4547 | { |
4548 | .cmd = NL80211_CMD_GET_STATION, | |
4549 | .doit = nl80211_get_station, | |
2ec600d6 | 4550 | .dumpit = nl80211_dump_station, |
5727ef1b | 4551 | .policy = nl80211_policy, |
4c476991 JB |
4552 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4553 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4554 | }, |
4555 | { | |
4556 | .cmd = NL80211_CMD_SET_STATION, | |
4557 | .doit = nl80211_set_station, | |
4558 | .policy = nl80211_policy, | |
4559 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4560 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4561 | NL80211_FLAG_NEED_RTNL, | |
5727ef1b JB |
4562 | }, |
4563 | { | |
4564 | .cmd = NL80211_CMD_NEW_STATION, | |
4565 | .doit = nl80211_new_station, | |
4566 | .policy = nl80211_policy, | |
4567 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4568 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4569 | NL80211_FLAG_NEED_RTNL, |
5727ef1b JB |
4570 | }, |
4571 | { | |
4572 | .cmd = NL80211_CMD_DEL_STATION, | |
4573 | .doit = nl80211_del_station, | |
4574 | .policy = nl80211_policy, | |
2ec600d6 | 4575 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4576 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4577 | NL80211_FLAG_NEED_RTNL, | |
2ec600d6 LCC |
4578 | }, |
4579 | { | |
4580 | .cmd = NL80211_CMD_GET_MPATH, | |
4581 | .doit = nl80211_get_mpath, | |
4582 | .dumpit = nl80211_dump_mpath, | |
4583 | .policy = nl80211_policy, | |
4584 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4585 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4586 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4587 | }, |
4588 | { | |
4589 | .cmd = NL80211_CMD_SET_MPATH, | |
4590 | .doit = nl80211_set_mpath, | |
4591 | .policy = nl80211_policy, | |
4592 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4593 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4594 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4595 | }, |
4596 | { | |
4597 | .cmd = NL80211_CMD_NEW_MPATH, | |
4598 | .doit = nl80211_new_mpath, | |
4599 | .policy = nl80211_policy, | |
4600 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4601 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4602 | NL80211_FLAG_NEED_RTNL, |
2ec600d6 LCC |
4603 | }, |
4604 | { | |
4605 | .cmd = NL80211_CMD_DEL_MPATH, | |
4606 | .doit = nl80211_del_mpath, | |
4607 | .policy = nl80211_policy, | |
9f1ba906 | 4608 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4609 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4610 | NL80211_FLAG_NEED_RTNL, | |
9f1ba906 JM |
4611 | }, |
4612 | { | |
4613 | .cmd = NL80211_CMD_SET_BSS, | |
4614 | .doit = nl80211_set_bss, | |
4615 | .policy = nl80211_policy, | |
b2e1b302 | 4616 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4617 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4618 | NL80211_FLAG_NEED_RTNL, | |
b2e1b302 | 4619 | }, |
f130347c LR |
4620 | { |
4621 | .cmd = NL80211_CMD_GET_REG, | |
4622 | .doit = nl80211_get_reg, | |
4623 | .policy = nl80211_policy, | |
4624 | /* can be retrieved by unprivileged users */ | |
4625 | }, | |
b2e1b302 LR |
4626 | { |
4627 | .cmd = NL80211_CMD_SET_REG, | |
4628 | .doit = nl80211_set_reg, | |
4629 | .policy = nl80211_policy, | |
4630 | .flags = GENL_ADMIN_PERM, | |
4631 | }, | |
4632 | { | |
4633 | .cmd = NL80211_CMD_REQ_SET_REG, | |
4634 | .doit = nl80211_req_set_reg, | |
4635 | .policy = nl80211_policy, | |
93da9cc1 | 4636 | .flags = GENL_ADMIN_PERM, |
4637 | }, | |
4638 | { | |
4639 | .cmd = NL80211_CMD_GET_MESH_PARAMS, | |
4640 | .doit = nl80211_get_mesh_params, | |
4641 | .policy = nl80211_policy, | |
4642 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4643 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4644 | NL80211_FLAG_NEED_RTNL, | |
93da9cc1 | 4645 | }, |
4646 | { | |
4647 | .cmd = NL80211_CMD_SET_MESH_PARAMS, | |
4648 | .doit = nl80211_set_mesh_params, | |
4649 | .policy = nl80211_policy, | |
9aed3cc1 | 4650 | .flags = GENL_ADMIN_PERM, |
4c476991 JB |
4651 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4652 | NL80211_FLAG_NEED_RTNL, | |
9aed3cc1 | 4653 | }, |
2a519311 JB |
4654 | { |
4655 | .cmd = NL80211_CMD_TRIGGER_SCAN, | |
4656 | .doit = nl80211_trigger_scan, | |
4657 | .policy = nl80211_policy, | |
4658 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4659 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4660 | NL80211_FLAG_NEED_RTNL, |
2a519311 JB |
4661 | }, |
4662 | { | |
4663 | .cmd = NL80211_CMD_GET_SCAN, | |
4664 | .policy = nl80211_policy, | |
4665 | .dumpit = nl80211_dump_scan, | |
4666 | }, | |
636a5d36 JM |
4667 | { |
4668 | .cmd = NL80211_CMD_AUTHENTICATE, | |
4669 | .doit = nl80211_authenticate, | |
4670 | .policy = nl80211_policy, | |
4671 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4672 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4673 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4674 | }, |
4675 | { | |
4676 | .cmd = NL80211_CMD_ASSOCIATE, | |
4677 | .doit = nl80211_associate, | |
4678 | .policy = nl80211_policy, | |
4679 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4680 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4681 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4682 | }, |
4683 | { | |
4684 | .cmd = NL80211_CMD_DEAUTHENTICATE, | |
4685 | .doit = nl80211_deauthenticate, | |
4686 | .policy = nl80211_policy, | |
4687 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4688 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4689 | NL80211_FLAG_NEED_RTNL, |
636a5d36 JM |
4690 | }, |
4691 | { | |
4692 | .cmd = NL80211_CMD_DISASSOCIATE, | |
4693 | .doit = nl80211_disassociate, | |
4694 | .policy = nl80211_policy, | |
4695 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4696 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4697 | NL80211_FLAG_NEED_RTNL, |
636a5d36 | 4698 | }, |
04a773ad JB |
4699 | { |
4700 | .cmd = NL80211_CMD_JOIN_IBSS, | |
4701 | .doit = nl80211_join_ibss, | |
4702 | .policy = nl80211_policy, | |
4703 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4704 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4705 | NL80211_FLAG_NEED_RTNL, |
04a773ad JB |
4706 | }, |
4707 | { | |
4708 | .cmd = NL80211_CMD_LEAVE_IBSS, | |
4709 | .doit = nl80211_leave_ibss, | |
4710 | .policy = nl80211_policy, | |
4711 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4712 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4713 | NL80211_FLAG_NEED_RTNL, |
04a773ad | 4714 | }, |
aff89a9b JB |
4715 | #ifdef CONFIG_NL80211_TESTMODE |
4716 | { | |
4717 | .cmd = NL80211_CMD_TESTMODE, | |
4718 | .doit = nl80211_testmode_do, | |
4719 | .policy = nl80211_policy, | |
4720 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4721 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4722 | NL80211_FLAG_NEED_RTNL, | |
aff89a9b JB |
4723 | }, |
4724 | #endif | |
b23aa676 SO |
4725 | { |
4726 | .cmd = NL80211_CMD_CONNECT, | |
4727 | .doit = nl80211_connect, | |
4728 | .policy = nl80211_policy, | |
4729 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4730 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4731 | NL80211_FLAG_NEED_RTNL, |
b23aa676 SO |
4732 | }, |
4733 | { | |
4734 | .cmd = NL80211_CMD_DISCONNECT, | |
4735 | .doit = nl80211_disconnect, | |
4736 | .policy = nl80211_policy, | |
4737 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4738 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4739 | NL80211_FLAG_NEED_RTNL, |
b23aa676 | 4740 | }, |
463d0183 JB |
4741 | { |
4742 | .cmd = NL80211_CMD_SET_WIPHY_NETNS, | |
4743 | .doit = nl80211_wiphy_netns, | |
4744 | .policy = nl80211_policy, | |
4745 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4746 | .internal_flags = NL80211_FLAG_NEED_WIPHY | |
4747 | NL80211_FLAG_NEED_RTNL, | |
463d0183 | 4748 | }, |
61fa713c HS |
4749 | { |
4750 | .cmd = NL80211_CMD_GET_SURVEY, | |
4751 | .policy = nl80211_policy, | |
4752 | .dumpit = nl80211_dump_survey, | |
4753 | }, | |
67fbb16b SO |
4754 | { |
4755 | .cmd = NL80211_CMD_SET_PMKSA, | |
4756 | .doit = nl80211_setdel_pmksa, | |
4757 | .policy = nl80211_policy, | |
4758 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4759 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4760 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4761 | }, |
4762 | { | |
4763 | .cmd = NL80211_CMD_DEL_PMKSA, | |
4764 | .doit = nl80211_setdel_pmksa, | |
4765 | .policy = nl80211_policy, | |
4766 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4767 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4768 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b SO |
4769 | }, |
4770 | { | |
4771 | .cmd = NL80211_CMD_FLUSH_PMKSA, | |
4772 | .doit = nl80211_flush_pmksa, | |
4773 | .policy = nl80211_policy, | |
4774 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4775 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4776 | NL80211_FLAG_NEED_RTNL, | |
67fbb16b | 4777 | }, |
9588bbd5 JM |
4778 | { |
4779 | .cmd = NL80211_CMD_REMAIN_ON_CHANNEL, | |
4780 | .doit = nl80211_remain_on_channel, | |
4781 | .policy = nl80211_policy, | |
4782 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4783 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4784 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 JM |
4785 | }, |
4786 | { | |
4787 | .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
4788 | .doit = nl80211_cancel_remain_on_channel, | |
4789 | .policy = nl80211_policy, | |
4790 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4791 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4792 | NL80211_FLAG_NEED_RTNL, |
9588bbd5 | 4793 | }, |
13ae75b1 JM |
4794 | { |
4795 | .cmd = NL80211_CMD_SET_TX_BITRATE_MASK, | |
4796 | .doit = nl80211_set_tx_bitrate_mask, | |
4797 | .policy = nl80211_policy, | |
4798 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4799 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4800 | NL80211_FLAG_NEED_RTNL, | |
13ae75b1 | 4801 | }, |
026331c4 | 4802 | { |
2e161f78 JB |
4803 | .cmd = NL80211_CMD_REGISTER_FRAME, |
4804 | .doit = nl80211_register_mgmt, | |
026331c4 JM |
4805 | .policy = nl80211_policy, |
4806 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4807 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4808 | NL80211_FLAG_NEED_RTNL, | |
026331c4 JM |
4809 | }, |
4810 | { | |
2e161f78 JB |
4811 | .cmd = NL80211_CMD_FRAME, |
4812 | .doit = nl80211_tx_mgmt, | |
026331c4 JM |
4813 | .policy = nl80211_policy, |
4814 | .flags = GENL_ADMIN_PERM, | |
41265714 | 4815 | .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | |
4c476991 | 4816 | NL80211_FLAG_NEED_RTNL, |
026331c4 | 4817 | }, |
ffb9eb3d KV |
4818 | { |
4819 | .cmd = NL80211_CMD_SET_POWER_SAVE, | |
4820 | .doit = nl80211_set_power_save, | |
4821 | .policy = nl80211_policy, | |
4822 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4823 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4824 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d KV |
4825 | }, |
4826 | { | |
4827 | .cmd = NL80211_CMD_GET_POWER_SAVE, | |
4828 | .doit = nl80211_get_power_save, | |
4829 | .policy = nl80211_policy, | |
4830 | /* can be retrieved by unprivileged users */ | |
4c476991 JB |
4831 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4832 | NL80211_FLAG_NEED_RTNL, | |
ffb9eb3d | 4833 | }, |
d6dc1a38 JO |
4834 | { |
4835 | .cmd = NL80211_CMD_SET_CQM, | |
4836 | .doit = nl80211_set_cqm, | |
4837 | .policy = nl80211_policy, | |
4838 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4839 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4840 | NL80211_FLAG_NEED_RTNL, | |
d6dc1a38 | 4841 | }, |
f444de05 JB |
4842 | { |
4843 | .cmd = NL80211_CMD_SET_CHANNEL, | |
4844 | .doit = nl80211_set_channel, | |
4845 | .policy = nl80211_policy, | |
4846 | .flags = GENL_ADMIN_PERM, | |
4c476991 JB |
4847 | .internal_flags = NL80211_FLAG_NEED_NETDEV | |
4848 | NL80211_FLAG_NEED_RTNL, | |
f444de05 | 4849 | }, |
e8347eba BJ |
4850 | { |
4851 | .cmd = NL80211_CMD_SET_WDS_PEER, | |
4852 | .doit = nl80211_set_wds_peer, | |
4853 | .policy = nl80211_policy, | |
4854 | .flags = GENL_ADMIN_PERM, | |
4855 | }, | |
55682965 | 4856 | }; |
9588bbd5 | 4857 | |
6039f6d2 JM |
4858 | static struct genl_multicast_group nl80211_mlme_mcgrp = { |
4859 | .name = "mlme", | |
4860 | }; | |
55682965 JB |
4861 | |
4862 | /* multicast groups */ | |
4863 | static struct genl_multicast_group nl80211_config_mcgrp = { | |
4864 | .name = "config", | |
4865 | }; | |
2a519311 JB |
4866 | static struct genl_multicast_group nl80211_scan_mcgrp = { |
4867 | .name = "scan", | |
4868 | }; | |
73d54c9e LR |
4869 | static struct genl_multicast_group nl80211_regulatory_mcgrp = { |
4870 | .name = "regulatory", | |
4871 | }; | |
55682965 JB |
4872 | |
4873 | /* notification functions */ | |
4874 | ||
4875 | void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) | |
4876 | { | |
4877 | struct sk_buff *msg; | |
4878 | ||
fd2120ca | 4879 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
55682965 JB |
4880 | if (!msg) |
4881 | return; | |
4882 | ||
4883 | if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) { | |
4884 | nlmsg_free(msg); | |
4885 | return; | |
4886 | } | |
4887 | ||
463d0183 JB |
4888 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4889 | nl80211_config_mcgrp.id, GFP_KERNEL); | |
55682965 JB |
4890 | } |
4891 | ||
362a415d JB |
4892 | static int nl80211_add_scan_req(struct sk_buff *msg, |
4893 | struct cfg80211_registered_device *rdev) | |
4894 | { | |
4895 | struct cfg80211_scan_request *req = rdev->scan_req; | |
4896 | struct nlattr *nest; | |
4897 | int i; | |
4898 | ||
667503dd JB |
4899 | ASSERT_RDEV_LOCK(rdev); |
4900 | ||
362a415d JB |
4901 | if (WARN_ON(!req)) |
4902 | return 0; | |
4903 | ||
4904 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS); | |
4905 | if (!nest) | |
4906 | goto nla_put_failure; | |
4907 | for (i = 0; i < req->n_ssids; i++) | |
4908 | NLA_PUT(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid); | |
4909 | nla_nest_end(msg, nest); | |
4910 | ||
4911 | nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES); | |
4912 | if (!nest) | |
4913 | goto nla_put_failure; | |
4914 | for (i = 0; i < req->n_channels; i++) | |
4915 | NLA_PUT_U32(msg, i, req->channels[i]->center_freq); | |
4916 | nla_nest_end(msg, nest); | |
4917 | ||
4918 | if (req->ie) | |
4919 | NLA_PUT(msg, NL80211_ATTR_IE, req->ie_len, req->ie); | |
4920 | ||
4921 | return 0; | |
4922 | nla_put_failure: | |
4923 | return -ENOBUFS; | |
4924 | } | |
4925 | ||
a538e2d5 JB |
4926 | static int nl80211_send_scan_msg(struct sk_buff *msg, |
4927 | struct cfg80211_registered_device *rdev, | |
4928 | struct net_device *netdev, | |
4929 | u32 pid, u32 seq, int flags, | |
4930 | u32 cmd) | |
2a519311 JB |
4931 | { |
4932 | void *hdr; | |
4933 | ||
4934 | hdr = nl80211hdr_put(msg, pid, seq, flags, cmd); | |
4935 | if (!hdr) | |
4936 | return -1; | |
4937 | ||
b5850a7a | 4938 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); |
2a519311 JB |
4939 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); |
4940 | ||
362a415d JB |
4941 | /* ignore errors and send incomplete event anyway */ |
4942 | nl80211_add_scan_req(msg, rdev); | |
2a519311 JB |
4943 | |
4944 | return genlmsg_end(msg, hdr); | |
4945 | ||
4946 | nla_put_failure: | |
4947 | genlmsg_cancel(msg, hdr); | |
4948 | return -EMSGSIZE; | |
4949 | } | |
4950 | ||
a538e2d5 JB |
4951 | void nl80211_send_scan_start(struct cfg80211_registered_device *rdev, |
4952 | struct net_device *netdev) | |
4953 | { | |
4954 | struct sk_buff *msg; | |
4955 | ||
4956 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); | |
4957 | if (!msg) | |
4958 | return; | |
4959 | ||
4960 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, | |
4961 | NL80211_CMD_TRIGGER_SCAN) < 0) { | |
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); | |
a538e2d5 JB |
4968 | } |
4969 | ||
2a519311 JB |
4970 | void nl80211_send_scan_done(struct cfg80211_registered_device *rdev, |
4971 | struct net_device *netdev) | |
4972 | { | |
4973 | struct sk_buff *msg; | |
4974 | ||
fd2120ca | 4975 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4976 | if (!msg) |
4977 | return; | |
4978 | ||
a538e2d5 JB |
4979 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4980 | NL80211_CMD_NEW_SCAN_RESULTS) < 0) { | |
2a519311 JB |
4981 | nlmsg_free(msg); |
4982 | return; | |
4983 | } | |
4984 | ||
463d0183 JB |
4985 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
4986 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
4987 | } |
4988 | ||
4989 | void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev, | |
4990 | struct net_device *netdev) | |
4991 | { | |
4992 | struct sk_buff *msg; | |
4993 | ||
fd2120ca | 4994 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
2a519311 JB |
4995 | if (!msg) |
4996 | return; | |
4997 | ||
a538e2d5 JB |
4998 | if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0, |
4999 | NL80211_CMD_SCAN_ABORTED) < 0) { | |
2a519311 JB |
5000 | nlmsg_free(msg); |
5001 | return; | |
5002 | } | |
5003 | ||
463d0183 JB |
5004 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5005 | nl80211_scan_mcgrp.id, GFP_KERNEL); | |
2a519311 JB |
5006 | } |
5007 | ||
73d54c9e LR |
5008 | /* |
5009 | * This can happen on global regulatory changes or device specific settings | |
5010 | * based on custom world regulatory domains. | |
5011 | */ | |
5012 | void nl80211_send_reg_change_event(struct regulatory_request *request) | |
5013 | { | |
5014 | struct sk_buff *msg; | |
5015 | void *hdr; | |
5016 | ||
fd2120ca | 5017 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
73d54c9e LR |
5018 | if (!msg) |
5019 | return; | |
5020 | ||
5021 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE); | |
5022 | if (!hdr) { | |
5023 | nlmsg_free(msg); | |
5024 | return; | |
5025 | } | |
5026 | ||
5027 | /* Userspace can always count this one always being set */ | |
5028 | NLA_PUT_U8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator); | |
5029 | ||
5030 | if (request->alpha2[0] == '0' && request->alpha2[1] == '0') | |
5031 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5032 | NL80211_REGDOM_TYPE_WORLD); | |
5033 | else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') | |
5034 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5035 | NL80211_REGDOM_TYPE_CUSTOM_WORLD); | |
5036 | else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') || | |
5037 | request->intersect) | |
5038 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5039 | NL80211_REGDOM_TYPE_INTERSECTION); | |
5040 | else { | |
5041 | NLA_PUT_U8(msg, NL80211_ATTR_REG_TYPE, | |
5042 | NL80211_REGDOM_TYPE_COUNTRY); | |
5043 | NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, request->alpha2); | |
5044 | } | |
5045 | ||
5046 | if (wiphy_idx_valid(request->wiphy_idx)) | |
5047 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx); | |
5048 | ||
5049 | if (genlmsg_end(msg, hdr) < 0) { | |
5050 | nlmsg_free(msg); | |
5051 | return; | |
5052 | } | |
5053 | ||
bc43b28c | 5054 | rcu_read_lock(); |
463d0183 | 5055 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, |
bc43b28c JB |
5056 | GFP_ATOMIC); |
5057 | rcu_read_unlock(); | |
73d54c9e LR |
5058 | |
5059 | return; | |
5060 | ||
5061 | nla_put_failure: | |
5062 | genlmsg_cancel(msg, hdr); | |
5063 | nlmsg_free(msg); | |
5064 | } | |
5065 | ||
6039f6d2 JM |
5066 | static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev, |
5067 | struct net_device *netdev, | |
5068 | const u8 *buf, size_t len, | |
e6d6e342 | 5069 | enum nl80211_commands cmd, gfp_t gfp) |
6039f6d2 JM |
5070 | { |
5071 | struct sk_buff *msg; | |
5072 | void *hdr; | |
5073 | ||
e6d6e342 | 5074 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
6039f6d2 JM |
5075 | if (!msg) |
5076 | return; | |
5077 | ||
5078 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5079 | if (!hdr) { | |
5080 | nlmsg_free(msg); | |
5081 | return; | |
5082 | } | |
5083 | ||
5084 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5085 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5086 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5087 | ||
5088 | if (genlmsg_end(msg, hdr) < 0) { | |
5089 | nlmsg_free(msg); | |
5090 | return; | |
5091 | } | |
5092 | ||
463d0183 JB |
5093 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5094 | nl80211_mlme_mcgrp.id, gfp); | |
6039f6d2 JM |
5095 | return; |
5096 | ||
5097 | nla_put_failure: | |
5098 | genlmsg_cancel(msg, hdr); | |
5099 | nlmsg_free(msg); | |
5100 | } | |
5101 | ||
5102 | void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5103 | struct net_device *netdev, const u8 *buf, |
5104 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5105 | { |
5106 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5107 | NL80211_CMD_AUTHENTICATE, gfp); |
6039f6d2 JM |
5108 | } |
5109 | ||
5110 | void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev, | |
5111 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5112 | size_t len, gfp_t gfp) |
6039f6d2 | 5113 | { |
e6d6e342 JB |
5114 | nl80211_send_mlme_event(rdev, netdev, buf, len, |
5115 | NL80211_CMD_ASSOCIATE, gfp); | |
6039f6d2 JM |
5116 | } |
5117 | ||
53b46b84 | 5118 | void nl80211_send_deauth(struct cfg80211_registered_device *rdev, |
e6d6e342 JB |
5119 | struct net_device *netdev, const u8 *buf, |
5120 | size_t len, gfp_t gfp) | |
6039f6d2 JM |
5121 | { |
5122 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5123 | NL80211_CMD_DEAUTHENTICATE, gfp); |
6039f6d2 JM |
5124 | } |
5125 | ||
53b46b84 JM |
5126 | void nl80211_send_disassoc(struct cfg80211_registered_device *rdev, |
5127 | struct net_device *netdev, const u8 *buf, | |
e6d6e342 | 5128 | size_t len, gfp_t gfp) |
6039f6d2 JM |
5129 | { |
5130 | nl80211_send_mlme_event(rdev, netdev, buf, len, | |
e6d6e342 | 5131 | NL80211_CMD_DISASSOCIATE, gfp); |
6039f6d2 JM |
5132 | } |
5133 | ||
1b06bb40 LR |
5134 | static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev, |
5135 | struct net_device *netdev, int cmd, | |
e6d6e342 | 5136 | const u8 *addr, gfp_t gfp) |
1965c853 JM |
5137 | { |
5138 | struct sk_buff *msg; | |
5139 | void *hdr; | |
5140 | ||
e6d6e342 | 5141 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
1965c853 JM |
5142 | if (!msg) |
5143 | return; | |
5144 | ||
5145 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5146 | if (!hdr) { | |
5147 | nlmsg_free(msg); | |
5148 | return; | |
5149 | } | |
5150 | ||
5151 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5152 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5153 | NLA_PUT_FLAG(msg, NL80211_ATTR_TIMED_OUT); | |
5154 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5155 | ||
5156 | if (genlmsg_end(msg, hdr) < 0) { | |
5157 | nlmsg_free(msg); | |
5158 | return; | |
5159 | } | |
5160 | ||
463d0183 JB |
5161 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5162 | nl80211_mlme_mcgrp.id, gfp); | |
1965c853 JM |
5163 | return; |
5164 | ||
5165 | nla_put_failure: | |
5166 | genlmsg_cancel(msg, hdr); | |
5167 | nlmsg_free(msg); | |
5168 | } | |
5169 | ||
5170 | void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5171 | struct net_device *netdev, const u8 *addr, |
5172 | gfp_t gfp) | |
1965c853 JM |
5173 | { |
5174 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE, | |
e6d6e342 | 5175 | addr, gfp); |
1965c853 JM |
5176 | } |
5177 | ||
5178 | void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev, | |
e6d6e342 JB |
5179 | struct net_device *netdev, const u8 *addr, |
5180 | gfp_t gfp) | |
1965c853 | 5181 | { |
e6d6e342 JB |
5182 | nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE, |
5183 | addr, gfp); | |
1965c853 JM |
5184 | } |
5185 | ||
b23aa676 SO |
5186 | void nl80211_send_connect_result(struct cfg80211_registered_device *rdev, |
5187 | struct net_device *netdev, const u8 *bssid, | |
5188 | const u8 *req_ie, size_t req_ie_len, | |
5189 | const u8 *resp_ie, size_t resp_ie_len, | |
5190 | u16 status, gfp_t gfp) | |
5191 | { | |
5192 | struct sk_buff *msg; | |
5193 | void *hdr; | |
5194 | ||
5195 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5196 | if (!msg) | |
5197 | return; | |
5198 | ||
5199 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT); | |
5200 | if (!hdr) { | |
5201 | nlmsg_free(msg); | |
5202 | return; | |
5203 | } | |
5204 | ||
5205 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5206 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5207 | if (bssid) | |
5208 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5209 | NLA_PUT_U16(msg, NL80211_ATTR_STATUS_CODE, status); | |
5210 | if (req_ie) | |
5211 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5212 | if (resp_ie) | |
5213 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5214 | ||
5215 | if (genlmsg_end(msg, hdr) < 0) { | |
5216 | nlmsg_free(msg); | |
5217 | return; | |
5218 | } | |
5219 | ||
463d0183 JB |
5220 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5221 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5222 | return; |
5223 | ||
5224 | nla_put_failure: | |
5225 | genlmsg_cancel(msg, hdr); | |
5226 | nlmsg_free(msg); | |
5227 | ||
5228 | } | |
5229 | ||
5230 | void nl80211_send_roamed(struct cfg80211_registered_device *rdev, | |
5231 | struct net_device *netdev, const u8 *bssid, | |
5232 | const u8 *req_ie, size_t req_ie_len, | |
5233 | const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) | |
5234 | { | |
5235 | struct sk_buff *msg; | |
5236 | void *hdr; | |
5237 | ||
5238 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5239 | if (!msg) | |
5240 | return; | |
5241 | ||
5242 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM); | |
5243 | if (!hdr) { | |
5244 | nlmsg_free(msg); | |
5245 | return; | |
5246 | } | |
5247 | ||
5248 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5249 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5250 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5251 | if (req_ie) | |
5252 | NLA_PUT(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie); | |
5253 | if (resp_ie) | |
5254 | NLA_PUT(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie); | |
5255 | ||
5256 | if (genlmsg_end(msg, hdr) < 0) { | |
5257 | nlmsg_free(msg); | |
5258 | return; | |
5259 | } | |
5260 | ||
463d0183 JB |
5261 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5262 | nl80211_mlme_mcgrp.id, gfp); | |
b23aa676 SO |
5263 | return; |
5264 | ||
5265 | nla_put_failure: | |
5266 | genlmsg_cancel(msg, hdr); | |
5267 | nlmsg_free(msg); | |
5268 | ||
5269 | } | |
5270 | ||
5271 | void nl80211_send_disconnected(struct cfg80211_registered_device *rdev, | |
5272 | struct net_device *netdev, u16 reason, | |
667503dd | 5273 | const u8 *ie, size_t ie_len, bool from_ap) |
b23aa676 SO |
5274 | { |
5275 | struct sk_buff *msg; | |
5276 | void *hdr; | |
5277 | ||
667503dd | 5278 | msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); |
b23aa676 SO |
5279 | if (!msg) |
5280 | return; | |
5281 | ||
5282 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT); | |
5283 | if (!hdr) { | |
5284 | nlmsg_free(msg); | |
5285 | return; | |
5286 | } | |
5287 | ||
5288 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5289 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5290 | if (from_ap && reason) | |
5291 | NLA_PUT_U16(msg, NL80211_ATTR_REASON_CODE, reason); | |
5292 | if (from_ap) | |
5293 | NLA_PUT_FLAG(msg, NL80211_ATTR_DISCONNECTED_BY_AP); | |
5294 | if (ie) | |
5295 | NLA_PUT(msg, NL80211_ATTR_IE, ie_len, ie); | |
5296 | ||
5297 | if (genlmsg_end(msg, hdr) < 0) { | |
5298 | nlmsg_free(msg); | |
5299 | return; | |
5300 | } | |
5301 | ||
463d0183 JB |
5302 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5303 | nl80211_mlme_mcgrp.id, GFP_KERNEL); | |
b23aa676 SO |
5304 | return; |
5305 | ||
5306 | nla_put_failure: | |
5307 | genlmsg_cancel(msg, hdr); | |
5308 | nlmsg_free(msg); | |
5309 | ||
5310 | } | |
5311 | ||
04a773ad JB |
5312 | void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev, |
5313 | struct net_device *netdev, const u8 *bssid, | |
5314 | gfp_t gfp) | |
5315 | { | |
5316 | struct sk_buff *msg; | |
5317 | void *hdr; | |
5318 | ||
fd2120ca | 5319 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
04a773ad JB |
5320 | if (!msg) |
5321 | return; | |
5322 | ||
5323 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS); | |
5324 | if (!hdr) { | |
5325 | nlmsg_free(msg); | |
5326 | return; | |
5327 | } | |
5328 | ||
5329 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5330 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5331 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid); | |
5332 | ||
5333 | if (genlmsg_end(msg, hdr) < 0) { | |
5334 | nlmsg_free(msg); | |
5335 | return; | |
5336 | } | |
5337 | ||
463d0183 JB |
5338 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5339 | nl80211_mlme_mcgrp.id, gfp); | |
04a773ad JB |
5340 | return; |
5341 | ||
5342 | nla_put_failure: | |
5343 | genlmsg_cancel(msg, hdr); | |
5344 | nlmsg_free(msg); | |
5345 | } | |
5346 | ||
a3b8b056 JM |
5347 | void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev, |
5348 | struct net_device *netdev, const u8 *addr, | |
5349 | enum nl80211_key_type key_type, int key_id, | |
e6d6e342 | 5350 | const u8 *tsc, gfp_t gfp) |
a3b8b056 JM |
5351 | { |
5352 | struct sk_buff *msg; | |
5353 | void *hdr; | |
5354 | ||
e6d6e342 | 5355 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); |
a3b8b056 JM |
5356 | if (!msg) |
5357 | return; | |
5358 | ||
5359 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); | |
5360 | if (!hdr) { | |
5361 | nlmsg_free(msg); | |
5362 | return; | |
5363 | } | |
5364 | ||
5365 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5366 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5367 | if (addr) | |
5368 | NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr); | |
5369 | NLA_PUT_U32(msg, NL80211_ATTR_KEY_TYPE, key_type); | |
5370 | NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_id); | |
5371 | if (tsc) | |
5372 | NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, 6, tsc); | |
5373 | ||
5374 | if (genlmsg_end(msg, hdr) < 0) { | |
5375 | nlmsg_free(msg); | |
5376 | return; | |
5377 | } | |
5378 | ||
463d0183 JB |
5379 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, |
5380 | nl80211_mlme_mcgrp.id, gfp); | |
a3b8b056 JM |
5381 | return; |
5382 | ||
5383 | nla_put_failure: | |
5384 | genlmsg_cancel(msg, hdr); | |
5385 | nlmsg_free(msg); | |
5386 | } | |
5387 | ||
6bad8766 LR |
5388 | void nl80211_send_beacon_hint_event(struct wiphy *wiphy, |
5389 | struct ieee80211_channel *channel_before, | |
5390 | struct ieee80211_channel *channel_after) | |
5391 | { | |
5392 | struct sk_buff *msg; | |
5393 | void *hdr; | |
5394 | struct nlattr *nl_freq; | |
5395 | ||
fd2120ca | 5396 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); |
6bad8766 LR |
5397 | if (!msg) |
5398 | return; | |
5399 | ||
5400 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); | |
5401 | if (!hdr) { | |
5402 | nlmsg_free(msg); | |
5403 | return; | |
5404 | } | |
5405 | ||
5406 | /* | |
5407 | * Since we are applying the beacon hint to a wiphy we know its | |
5408 | * wiphy_idx is valid | |
5409 | */ | |
5410 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)); | |
5411 | ||
5412 | /* Before */ | |
5413 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); | |
5414 | if (!nl_freq) | |
5415 | goto nla_put_failure; | |
5416 | if (nl80211_msg_put_channel(msg, channel_before)) | |
5417 | goto nla_put_failure; | |
5418 | nla_nest_end(msg, nl_freq); | |
5419 | ||
5420 | /* After */ | |
5421 | nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); | |
5422 | if (!nl_freq) | |
5423 | goto nla_put_failure; | |
5424 | if (nl80211_msg_put_channel(msg, channel_after)) | |
5425 | goto nla_put_failure; | |
5426 | nla_nest_end(msg, nl_freq); | |
5427 | ||
5428 | if (genlmsg_end(msg, hdr) < 0) { | |
5429 | nlmsg_free(msg); | |
5430 | return; | |
5431 | } | |
5432 | ||
463d0183 JB |
5433 | rcu_read_lock(); |
5434 | genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id, | |
5435 | GFP_ATOMIC); | |
5436 | rcu_read_unlock(); | |
6bad8766 LR |
5437 | |
5438 | return; | |
5439 | ||
5440 | nla_put_failure: | |
5441 | genlmsg_cancel(msg, hdr); | |
5442 | nlmsg_free(msg); | |
5443 | } | |
5444 | ||
9588bbd5 JM |
5445 | static void nl80211_send_remain_on_chan_event( |
5446 | int cmd, struct cfg80211_registered_device *rdev, | |
5447 | struct net_device *netdev, u64 cookie, | |
5448 | struct ieee80211_channel *chan, | |
5449 | enum nl80211_channel_type channel_type, | |
5450 | unsigned int duration, gfp_t gfp) | |
5451 | { | |
5452 | struct sk_buff *msg; | |
5453 | void *hdr; | |
5454 | ||
5455 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5456 | if (!msg) | |
5457 | return; | |
5458 | ||
5459 | hdr = nl80211hdr_put(msg, 0, 0, 0, cmd); | |
5460 | if (!hdr) { | |
5461 | nlmsg_free(msg); | |
5462 | return; | |
5463 | } | |
5464 | ||
5465 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5466 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5467 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq); | |
5468 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type); | |
5469 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5470 | ||
5471 | if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL) | |
5472 | NLA_PUT_U32(msg, NL80211_ATTR_DURATION, duration); | |
5473 | ||
5474 | if (genlmsg_end(msg, hdr) < 0) { | |
5475 | nlmsg_free(msg); | |
5476 | return; | |
5477 | } | |
5478 | ||
5479 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5480 | nl80211_mlme_mcgrp.id, gfp); | |
5481 | return; | |
5482 | ||
5483 | nla_put_failure: | |
5484 | genlmsg_cancel(msg, hdr); | |
5485 | nlmsg_free(msg); | |
5486 | } | |
5487 | ||
5488 | void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev, | |
5489 | struct net_device *netdev, u64 cookie, | |
5490 | struct ieee80211_channel *chan, | |
5491 | enum nl80211_channel_type channel_type, | |
5492 | unsigned int duration, gfp_t gfp) | |
5493 | { | |
5494 | nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, | |
5495 | rdev, netdev, cookie, chan, | |
5496 | channel_type, duration, gfp); | |
5497 | } | |
5498 | ||
5499 | void nl80211_send_remain_on_channel_cancel( | |
5500 | struct cfg80211_registered_device *rdev, struct net_device *netdev, | |
5501 | u64 cookie, struct ieee80211_channel *chan, | |
5502 | enum nl80211_channel_type channel_type, gfp_t gfp) | |
5503 | { | |
5504 | nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, | |
5505 | rdev, netdev, cookie, chan, | |
5506 | channel_type, 0, gfp); | |
5507 | } | |
5508 | ||
98b62183 JB |
5509 | void nl80211_send_sta_event(struct cfg80211_registered_device *rdev, |
5510 | struct net_device *dev, const u8 *mac_addr, | |
5511 | struct station_info *sinfo, gfp_t gfp) | |
5512 | { | |
5513 | struct sk_buff *msg; | |
5514 | ||
5515 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5516 | if (!msg) | |
5517 | return; | |
5518 | ||
5519 | if (nl80211_send_station(msg, 0, 0, 0, dev, mac_addr, sinfo) < 0) { | |
5520 | nlmsg_free(msg); | |
5521 | return; | |
5522 | } | |
5523 | ||
5524 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5525 | nl80211_mlme_mcgrp.id, gfp); | |
5526 | } | |
5527 | ||
2e161f78 JB |
5528 | int nl80211_send_mgmt(struct cfg80211_registered_device *rdev, |
5529 | struct net_device *netdev, u32 nlpid, | |
5530 | int freq, const u8 *buf, size_t len, gfp_t gfp) | |
026331c4 JM |
5531 | { |
5532 | struct sk_buff *msg; | |
5533 | void *hdr; | |
5534 | int err; | |
5535 | ||
5536 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5537 | if (!msg) | |
5538 | return -ENOMEM; | |
5539 | ||
2e161f78 | 5540 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME); |
026331c4 JM |
5541 | if (!hdr) { |
5542 | nlmsg_free(msg); | |
5543 | return -ENOMEM; | |
5544 | } | |
5545 | ||
5546 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5547 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5548 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq); | |
5549 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5550 | ||
5551 | err = genlmsg_end(msg, hdr); | |
5552 | if (err < 0) { | |
5553 | nlmsg_free(msg); | |
5554 | return err; | |
5555 | } | |
5556 | ||
5557 | err = genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid); | |
5558 | if (err < 0) | |
5559 | return err; | |
5560 | return 0; | |
5561 | ||
5562 | nla_put_failure: | |
5563 | genlmsg_cancel(msg, hdr); | |
5564 | nlmsg_free(msg); | |
5565 | return -ENOBUFS; | |
5566 | } | |
5567 | ||
2e161f78 JB |
5568 | void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev, |
5569 | struct net_device *netdev, u64 cookie, | |
5570 | const u8 *buf, size_t len, bool ack, | |
5571 | gfp_t gfp) | |
026331c4 JM |
5572 | { |
5573 | struct sk_buff *msg; | |
5574 | void *hdr; | |
5575 | ||
5576 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); | |
5577 | if (!msg) | |
5578 | return; | |
5579 | ||
2e161f78 | 5580 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS); |
026331c4 JM |
5581 | if (!hdr) { |
5582 | nlmsg_free(msg); | |
5583 | return; | |
5584 | } | |
5585 | ||
5586 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5587 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5588 | NLA_PUT(msg, NL80211_ATTR_FRAME, len, buf); | |
5589 | NLA_PUT_U64(msg, NL80211_ATTR_COOKIE, cookie); | |
5590 | if (ack) | |
5591 | NLA_PUT_FLAG(msg, NL80211_ATTR_ACK); | |
5592 | ||
5593 | if (genlmsg_end(msg, hdr) < 0) { | |
5594 | nlmsg_free(msg); | |
5595 | return; | |
5596 | } | |
5597 | ||
5598 | genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp); | |
5599 | return; | |
5600 | ||
5601 | nla_put_failure: | |
5602 | genlmsg_cancel(msg, hdr); | |
5603 | nlmsg_free(msg); | |
5604 | } | |
5605 | ||
d6dc1a38 JO |
5606 | void |
5607 | nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev, | |
5608 | struct net_device *netdev, | |
5609 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
5610 | gfp_t gfp) | |
5611 | { | |
5612 | struct sk_buff *msg; | |
5613 | struct nlattr *pinfoattr; | |
5614 | void *hdr; | |
5615 | ||
5616 | msg = nlmsg_new(NLMSG_GOODSIZE, gfp); | |
5617 | if (!msg) | |
5618 | return; | |
5619 | ||
5620 | hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); | |
5621 | if (!hdr) { | |
5622 | nlmsg_free(msg); | |
5623 | return; | |
5624 | } | |
5625 | ||
5626 | NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx); | |
5627 | NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex); | |
5628 | ||
5629 | pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); | |
5630 | if (!pinfoattr) | |
5631 | goto nla_put_failure; | |
5632 | ||
5633 | NLA_PUT_U32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, | |
5634 | rssi_event); | |
5635 | ||
5636 | nla_nest_end(msg, pinfoattr); | |
5637 | ||
5638 | if (genlmsg_end(msg, hdr) < 0) { | |
5639 | nlmsg_free(msg); | |
5640 | return; | |
5641 | } | |
5642 | ||
5643 | genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0, | |
5644 | nl80211_mlme_mcgrp.id, gfp); | |
5645 | return; | |
5646 | ||
5647 | nla_put_failure: | |
5648 | genlmsg_cancel(msg, hdr); | |
5649 | nlmsg_free(msg); | |
5650 | } | |
5651 | ||
026331c4 JM |
5652 | static int nl80211_netlink_notify(struct notifier_block * nb, |
5653 | unsigned long state, | |
5654 | void *_notify) | |
5655 | { | |
5656 | struct netlink_notify *notify = _notify; | |
5657 | struct cfg80211_registered_device *rdev; | |
5658 | struct wireless_dev *wdev; | |
5659 | ||
5660 | if (state != NETLINK_URELEASE) | |
5661 | return NOTIFY_DONE; | |
5662 | ||
5663 | rcu_read_lock(); | |
5664 | ||
5665 | list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) | |
5666 | list_for_each_entry_rcu(wdev, &rdev->netdev_list, list) | |
2e161f78 | 5667 | cfg80211_mlme_unregister_socket(wdev, notify->pid); |
026331c4 JM |
5668 | |
5669 | rcu_read_unlock(); | |
5670 | ||
5671 | return NOTIFY_DONE; | |
5672 | } | |
5673 | ||
5674 | static struct notifier_block nl80211_netlink_notifier = { | |
5675 | .notifier_call = nl80211_netlink_notify, | |
5676 | }; | |
5677 | ||
55682965 JB |
5678 | /* initialisation/exit functions */ |
5679 | ||
5680 | int nl80211_init(void) | |
5681 | { | |
0d63cbb5 | 5682 | int err; |
55682965 | 5683 | |
0d63cbb5 MM |
5684 | err = genl_register_family_with_ops(&nl80211_fam, |
5685 | nl80211_ops, ARRAY_SIZE(nl80211_ops)); | |
55682965 JB |
5686 | if (err) |
5687 | return err; | |
5688 | ||
55682965 JB |
5689 | err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp); |
5690 | if (err) | |
5691 | goto err_out; | |
5692 | ||
2a519311 JB |
5693 | err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp); |
5694 | if (err) | |
5695 | goto err_out; | |
5696 | ||
73d54c9e LR |
5697 | err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp); |
5698 | if (err) | |
5699 | goto err_out; | |
5700 | ||
6039f6d2 JM |
5701 | err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp); |
5702 | if (err) | |
5703 | goto err_out; | |
5704 | ||
aff89a9b JB |
5705 | #ifdef CONFIG_NL80211_TESTMODE |
5706 | err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp); | |
5707 | if (err) | |
5708 | goto err_out; | |
5709 | #endif | |
5710 | ||
026331c4 JM |
5711 | err = netlink_register_notifier(&nl80211_netlink_notifier); |
5712 | if (err) | |
5713 | goto err_out; | |
5714 | ||
55682965 JB |
5715 | return 0; |
5716 | err_out: | |
5717 | genl_unregister_family(&nl80211_fam); | |
5718 | return err; | |
5719 | } | |
5720 | ||
5721 | void nl80211_exit(void) | |
5722 | { | |
026331c4 | 5723 | netlink_unregister_notifier(&nl80211_netlink_notifier); |
55682965 JB |
5724 | genl_unregister_family(&nl80211_fam); |
5725 | } |